/* roulang page: index */
:root{
  --bg-0:#05070F;
  --bg-1:#080D1A;
  --bg-2:#0D1526;
  --surface:#111C31;
  --surface-2:#16233B;
  --line:rgba(255,255,255,.10);
  --line-strong:rgba(91,231,196,.28);
  --text:#F4F8FF;
  --text-2:#B9C6DA;
  --muted:#8494AC;
  --primary:#5BE7C4;
  --primary-deep:#1FA88F;
  --accent:#FFB35C;
  --success:#5BE7C4;
  --warning:#FFB35C;
  --danger:#FF6B6B;
  --radius-lg:20px;
  --radius-md:16px;
  --radius-sm:12px;
  --radius-pill:999px;
  --shadow:0 18px 50px rgba(0,0,0,.28);
  --shadow-hover:0 24px 60px rgba(0,0,0,.42);
  --container:1200px;
  --nav-h:72px;
  --font:"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background-color:var(--bg-0);
  background-image:
    radial-gradient(760px 420px at 88% -6%, rgba(91,231,196,.12), transparent 62%),
    radial-gradient(680px 460px at -8% 88%, rgba(255,179,92,.08), transparent 60%),
    linear-gradient(180deg,#05070F 0%,#080D1A 46%,#05070F 100%);
  background-repeat:no-repeat;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body.no-scroll{overflow:hidden;}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0;}
h1,h2,h3,h4{line-height:1.25;letter-spacing:.01em;font-weight:800;}
ul,ol{padding-left:1.15em;}
a{color:inherit;text-decoration:none;transition:color .2s ease,border-color .2s ease,background-color .2s ease;}
a:focus-visible,button:focus-visible,summary:focus-visible,input:focus-visible{
  outline:2px solid var(--primary);
  outline-offset:3px;
  border-radius:6px;
}
img{max-width:100%;display:block;border:0;}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit;}
svg{display:block;}
time,.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum";}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
.section{padding:96px 0;}
.section--tight{padding:72px 0;}

/* ============ 顶部信息条 ============ */
.topbar{
  background:rgba(5,7,15,.92);
  border-bottom:1px solid var(--line);
  font-size:12px;
  color:var(--muted);
}
.topbar__inner{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  height:38px;
}
.topbar__domain{letter-spacing:.04em;color:var(--text-2);font-weight:600;}
.topbar__tip{color:var(--muted);}
.topbar__actions{display:flex;align-items:center;gap:14px;}
.topbar__link{color:var(--text-2);font-size:12px;border-bottom:1px dashed rgba(185,198,218,.32);padding-bottom:1px;}
.topbar__link:hover{color:var(--primary);border-color:var(--primary);}
.topbar__pill{
  display:inline-flex;align-items:center;height:22px;padding:0 12px;
  border-radius:var(--radius-pill);
  border:1px solid rgba(255,179,92,.42);
  color:var(--accent);font-size:12px;line-height:1;
  background:rgba(255,179,92,.08);
  transition:background-color .2s ease,color .2s ease,transform .2s ease;
}
.topbar__pill:hover{background:rgba(255,179,92,.18);transform:translateY(-1px);}

/* ============ 主导航 ============ */
.site-header{
  position:sticky;top:0;z-index:100;
  background:rgba(8,13,26,.86);
  border-bottom:1px solid transparent;
  transition:background-color .25s ease,box-shadow .25s ease,border-color .25s ease,backdrop-filter .25s ease;
}
.site-header.is-scrolled{
  background:rgba(8,13,26,.86);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom-color:var(--line);
  box-shadow:0 10px 34px rgba(0,0,0,.36);
}
.nav{display:flex;align-items:center;justify-content:space-between;gap:24px;height:var(--nav-h);}
.brand{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.brand__mark{
  width:40px;height:40px;border-radius:12px;flex-shrink:0;
  display:grid;place-items:center;
  background:linear-gradient(160deg,rgba(91,231,196,.20),rgba(31,168,143,.06));
  border:1px solid var(--line-strong);
  box-shadow:0 0 22px rgba(91,231,196,.16) inset;
}
.brand__mark svg{width:22px;height:22px;}
.brand__text{display:flex;flex-direction:column;line-height:1.15;}
.brand__text strong{font-size:16px;font-weight:800;color:var(--text);letter-spacing:.02em;}
.brand__text em{font-style:normal;font-size:11px;color:var(--primary);letter-spacing:.16em;}
.nav__links{display:flex;align-items:center;gap:26px;}
.nav__links a{
  position:relative;
  font-size:15px;color:var(--text-2);
  padding:8px 0;
  white-space:nowrap;
}
.nav__links a:hover{color:var(--primary);}
.nav__links a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--primary),#9BEF8A);
  opacity:0;transform:scaleX(.4);transform-origin:left;
  transition:opacity .22s ease,transform .22s ease;
}
.nav__links a:hover::after{opacity:.45;transform:scaleX(1);}
.nav__links a.is-active{color:var(--text);font-weight:700;}
.nav__links a.is-active::after{opacity:1;transform:scaleX(1);}
.nav__links a.is-active::before{
  content:"";position:absolute;left:50%;bottom:-9px;width:6px;height:6px;border-radius:50%;
  transform:translateX(-50%);
  background:var(--primary);
  box-shadow:0 0 10px rgba(91,231,196,.9);
}
.nav__actions{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.nav__burger{
  display:none;width:44px;height:44px;border-radius:12px;
  border:1px solid var(--line);background:var(--surface);
  align-items:center;justify-content:center;
}
.nav__burger span{display:block;width:18px;height:2px;background:var(--text-2);border-radius:2px;position:relative;}
.nav__burger span::before,.nav__burger span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;border-radius:2px;background:var(--text-2);
}
.nav__burger span::before{top:-6px;}
.nav__burger span::after{top:6px;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--radius-pill);
  font-size:15px;font-weight:700;line-height:1;
  transition:transform .2s ease,box-shadow .2s ease,background-color .2s ease,color .2s ease,border-color .2s ease;
  white-space:nowrap;
}
.btn--sm{height:40px;padding:0 18px;font-size:14px;}
.btn--primary{
  color:#052B22;
  background:linear-gradient(135deg,#5BE7C4,#9BEF8A);
  box-shadow:0 10px 26px rgba(91,231,196,.24);
}
.btn--primary:hover{transform:translateY(-2px);box-shadow:0 16px 34px rgba(91,231,196,.34);filter:brightness(1.04);}
.btn--primary:active{transform:translateY(0);box-shadow:0 8px 18px rgba(91,231,196,.22);}
.btn--ghost{
  color:var(--text);
  background:transparent;
  border:1px solid rgba(255,255,255,.22);
}
.btn--ghost:hover{border-color:var(--primary);color:var(--primary);background:rgba(91,231,196,.07);transform:translateY(-2px);}
.btn--ghost:active{transform:translateY(0);}
.btn--block{width:100%;}
.btn:disabled,.btn[aria-disabled="true"]{opacity:.45;box-shadow:none;cursor:not-allowed;transform:none;filter:none;}

/* ============ 倒计时条 ============ */
.countdown{
  position:sticky;top:var(--nav-h);z-index:90;
  background:linear-gradient(90deg,rgba(13,21,38,.98),rgba(8,13,26,.98));
  border-bottom:1px solid var(--line);
}
.countdown__inner{display:flex;align-items:center;justify-content:space-between;gap:18px;min-height:64px;padding-top:8px;padding-bottom:8px;}
.countdown__label{display:flex;align-items:center;gap:10px;font-size:14px;font-weight:700;color:var(--text-2);}
.countdown__label::before{
  content:"";width:8px;height:8px;border-radius:50%;background:var(--accent);
  box-shadow:0 0 0 4px rgba(255,179,92,.16);
  animation:pulse 2.4s ease-in-out infinite;
}
@keyframes pulse{0%,100%{opacity:1;}50%{opacity:.42;}}
.countdown__clock{display:flex;align-items:center;gap:8px;}
.cd-block{
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  min-width:52px;height:52px;padding:0 6px;
  border-radius:12px;
  background:var(--surface);
  border:1px solid var(--line);
}
.cd-num{font-size:22px;font-weight:800;color:var(--primary);line-height:1;font-variant-numeric:tabular-nums;}
.cd-lab{font-size:10px;color:var(--muted);margin-top:4px;letter-spacing:.08em;}
.cd-colon{color:var(--muted);font-weight:700;font-size:18px;}
.countdown__done{font-size:14px;font-weight:700;color:var(--accent);letter-spacing:.04em;}

/* ============ Hero ============ */
.hero{position:relative;padding:88px 0 84px;overflow:hidden;}
.hero__bg{
  position:absolute;inset:0;z-index:0;
  background-image:linear-gradient(180deg,rgba(5,7,15,.86) 0%,rgba(5,7,15,.94) 100%),url("/assets/images/backpic/back-1.png");
  background-size:cover;background-position:center;
  opacity:.55;
}
.hero__grid{
  position:absolute;inset:0;z-index:1;pointer-events:none;
  background-image:
    radial-gradient(rgba(255,255,255,.10) 1px,transparent 1px),
    radial-gradient(600px 380px at 84% 6%,rgba(91,231,196,.22),transparent 66%);
  background-size:34px 34px,auto;
  mask-image:linear-gradient(180deg,rgba(0,0,0,.9),rgba(0,0,0,.15));
}
.hero__inner{position:relative;z-index:2;display:grid;grid-template-columns:repeat(12,1fr);gap:24px;align-items:center;}
.hero__copy{grid-column:span 6;}
.hero__eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  height:30px;padding:0 14px;border-radius:var(--radius-pill);
  font-size:12px;font-weight:700;letter-spacing:.08em;
  color:var(--primary);
  border:1px solid var(--line-strong);
  background:rgba(91,231,196,.08);
  margin-bottom:22px;
}
.hero h1{
  font-size:clamp(34px,5vw,58px);
  line-height:1.12;
  letter-spacing:.01em;
  margin-bottom:20px;
}
.hero h1 .hl{
  background:linear-gradient(120deg,#5BE7C4 10%,#9BEF8A 62%,#5BE7C4 96%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero__sub{font-size:17px;color:var(--text-2);max-width:34em;margin-bottom:30px;}
.hero__actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:28px;}
.hero__tags{display:flex;flex-wrap:wrap;gap:10px;list-style:none;padding:0;}
.tag{
  display:inline-flex;align-items:center;gap:7px;
  height:30px;padding:0 13px;border-radius:var(--radius-pill);
  font-size:12px;color:var(--text-2);
  border:1px solid var(--line);
  background:rgba(17,28,49,.6);
}
.tag svg{width:13px;height:13px;}
.hero__card{
  grid-column:span 6;
  border-radius:var(--radius-lg);
  padding:26px;
  background:linear-gradient(180deg,rgba(18,28,48,.78),rgba(10,16,30,.62));
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border:1px solid rgba(91,231,196,.20);
  box-shadow:var(--shadow),inset 0 1px 0 rgba(255,255,255,.08);
}
.hero__card h2{font-size:18px;margin-bottom:6px;}
.hero__card > p{font-size:13px;color:var(--muted);margin-bottom:20px;}
.entry-list{list-style:none;padding:0;margin:0 0 20px;display:flex;flex-direction:column;gap:12px;}
.entry-list li{
  display:flex;gap:14px;align-items:flex-start;
  padding:14px;border-radius:var(--radius-sm);
  background:rgba(11,18,33,.62);
  border:1px solid var(--line);
  transition:border-color .2s ease,transform .2s ease,background-color .2s ease;
}
.entry-list li:hover{border-color:var(--line-strong);transform:translateY(-2px);background:rgba(17,28,49,.82);}
.entry-list .ico{
  width:34px;height:34px;border-radius:10px;flex-shrink:0;display:grid;place-items:center;
  background:rgba(91,231,196,.10);border:1px solid var(--line-strong);
}
.entry-list .ico svg{width:17px;height:17px;}
.entry-list strong{display:block;font-size:14px;margin-bottom:2px;}
.entry-list span{font-size:12.5px;color:var(--muted);line-height:1.6;}

/* ============ 板块标题 ============ */
.section__head{max-width:760px;margin-bottom:44px;}
.section__head .kicker{
  display:inline-block;font-size:12px;font-weight:700;letter-spacing:.18em;
  color:var(--primary);margin-bottom:14px;
}
.section__head h2{font-size:clamp(26px,3.2vw,38px);margin-bottom:14px;}
.section__head p{font-size:15.5px;color:var(--text-2);}

/* ============ 指标条 ============ */
.metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.metric{
  padding:24px;border-radius:var(--radius-md);
  background:var(--surface);
  border:1px solid var(--line);
  transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease;
}
.metric:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--shadow);}
.metric__num{font-size:32px;font-weight:800;color:var(--primary);line-height:1;margin-bottom:10px;font-variant-numeric:tabular-nums;}
.metric__num small{font-size:14px;color:var(--muted);margin-left:4px;font-weight:600;}
.metric h3{font-size:15px;margin-bottom:6px;color:var(--text);}
.metric p{font-size:13px;color:var(--muted);line-height:1.7;}

/* ============ 卖点：左轨右卡 ============ */
.track{display:grid;grid-template-columns:repeat(12,1fr);gap:24px;}
.track__left{grid-column:span 4;position:sticky;top:190px;align-self:start;}
.track__left h2{font-size:clamp(26px,3vw,36px);margin-bottom:16px;}
.track__left p{font-size:15px;color:var(--text-2);margin-bottom:26px;max-width:26em;}
.rail{position:relative;padding-left:22px;display:flex;flex-direction:column;gap:16px;}
.rail::before{
  content:"";position:absolute;left:5px;top:6px;bottom:6px;width:2px;border-radius:2px;
  background:linear-gradient(180deg,var(--primary),rgba(91,231,196,.06));
}
.rail li{list-style:none;font-size:13.5px;color:var(--muted);display:flex;gap:10px;align-items:baseline;}
.rail li b{color:var(--primary);font-variant-numeric:tabular-nums;font-size:12px;letter-spacing:.06em;}
.track__right{grid-column:span 8;display:grid;grid-template-columns:repeat(2,1fr);gap:20px;}
.track__right ul{list-style:none;padding:0;margin:0;display:contents;}
.card{
  border-radius:var(--radius-lg);
  background:var(--surface);
  border:1px solid var(--line);
  overflow:hidden;
  transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease;
}
.card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--shadow-hover);}
.card:focus-within{border-color:var(--line-strong);box-shadow:var(--shadow);}
.card--wide{grid-column:span 2;}
.card__media{position:relative;aspect-ratio:16/8;overflow:hidden;}
.card__media img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease;}
.card:hover .card__media img{transform:scale(1.04);}
.card__media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(5,7,15,.10),rgba(5,7,15,.78));
}
.card__body{padding:22px;}
.card__body h3{font-size:17px;margin-bottom:8px;display:flex;align-items:center;gap:10px;}
.card__body h3 .idx{font-size:12px;color:var(--primary);letter-spacing:.08em;font-weight:800;}
.card__body p{font-size:13.5px;color:var(--muted);line-height:1.75;margin-bottom:14px;}
.card__tags{display:flex;flex-wrap:wrap;gap:8px;}
.chip{
  display:inline-flex;align-items:center;height:24px;padding:0 11px;
  font-size:11.5px;border-radius:var(--radius-pill);
  border:1px solid var(--line);color:var(--text-2);background:rgba(13,21,38,.7);
}
.chip--accent{color:var(--accent);border-color:rgba(255,179,92,.4);background:rgba(255,179,92,.08);}
.chip--primary{color:var(--primary);border-color:var(--line-strong);background:rgba(91,231,196,.09);}

/* ============ 图墙 ============ */
.gallery{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;}
.gallery a{
  position:relative;display:block;overflow:hidden;
  border-radius:var(--radius-md);
  border:1px solid var(--line);
  background:var(--surface-2);
  aspect-ratio:4/3;
  transition:border-color .22s ease,transform .22s ease,box-shadow .22s ease;
}
.gallery a:hover{border-color:var(--line-strong);transform:translateY(-4px);box-shadow:var(--shadow);}
.gallery a:focus-visible{outline:2px solid var(--primary);outline-offset:3px;}
.gallery a.is-big{grid-column:span 2;grid-row:span 2;aspect-ratio:auto;}
.gallery a.is-tall{aspect-ratio:3/4;}
.gallery img{width:100%;height:100%;object-fit:cover;transition:transform .55s ease;}
.gallery a:hover img{transform:scale(1.05);}
.gallery__cap{
  position:absolute;left:0;right:0;bottom:0;padding:16px 16px 14px;
  font-size:13px;font-weight:600;color:var(--text);
  background:linear-gradient(180deg,rgba(5,7,15,0),rgba(5,7,15,.86));
  transform:translateY(6px);opacity:.86;
  transition:transform .25s ease,opacity .25s ease;
}
.gallery a:hover .gallery__cap{transform:translateY(0);opacity:1;}

/* ============ 最新信息 ============ */
.news{display:grid;grid-template-columns:repeat(12,1fr);gap:24px;}
.news__main{grid-column:span 8;display:flex;flex-direction:column;gap:16px;}
.news__side{grid-column:span 4;}
.news-feature{
  display:block;padding:24px;border-radius:var(--radius-lg);
  background:linear-gradient(180deg,rgba(22,35,59,.92),rgba(17,28,49,.92));
  border:1px solid var(--line);
  transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease;
}
.news-feature:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--shadow-hover);}
.news-feature__top{display:flex;align-items:center;gap:10px;margin-bottom:14px;flex-wrap:wrap;}
.news-feature h3{font-size:20px;line-height:1.45;margin-bottom:10px;}
.news-feature:hover h3{color:var(--primary);}
.news-feature p{font-size:14px;color:var(--muted);line-height:1.75;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-row{
  display:flex;gap:16px;padding:16px 18px;border-radius:var(--radius-md);
  background:var(--surface);border:1px solid var(--line);
  transition:transform .2s ease,border-color .2s ease,background-color .2s ease;
}
.news-row:hover{transform:translateY(-2px);border-color:var(--line-strong);background:var(--surface-2);}
.news-row__date{
  flex-shrink:0;width:64px;border-radius:10px;padding:8px 0;
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  background:rgba(11,18,33,.9);border:1px solid var(--line);
}
.news-row__date b{font-size:19px;line-height:1;color:var(--primary);font-variant-numeric:tabular-nums;}
.news-row__date span{font-size:11px;color:var(--muted);margin-top:4px;font-variant-numeric:tabular-nums;}
.news-row__body{min-width:0;}
.news-row__body h4{font-size:16px;margin-bottom:4px;line-height:1.5;}
.news-row:hover h4{color:var(--primary);}
.news-row__body p{font-size:13px;color:var(--muted);line-height:1.7;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-row__meta{display:flex;gap:8px;margin-top:8px;flex-wrap:wrap;}
.news__more{display:inline-flex;align-items:center;gap:6px;font-size:14px;color:var(--primary);margin-top:6px;font-weight:700;}
.news__more:hover{color:#9BEF8A;text-decoration:underline;text-underline-offset:4px;}
.news-aside{
  padding:24px;border-radius:var(--radius-lg);
  background:var(--surface);border:1px solid var(--line);
  position:sticky;top:190px;
}
.news-aside h3{font-size:16px;margin-bottom:14px;}
.news-aside ul{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:10px;}
.news-aside li a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:11px 14px;border-radius:var(--radius-sm);
  font-size:14px;color:var(--text-2);
  background:rgba(11,18,33,.7);border:1px solid var(--line);
  transition:border-color .2s ease,color .2s ease,transform .2s ease;
}
.news-aside li a:hover{border-color:var(--line-strong);color:var(--primary);transform:translateX(3px);}
.news-aside li a span{font-size:12px;color:var(--muted);}
.news-aside__note{margin-top:16px;font-size:12.5px;color:var(--muted);line-height:1.7;padding-top:14px;border-top:1px dashed var(--line);}
.empty{
  border:1px dashed rgba(255,255,255,.18);
  border-radius:var(--radius-lg);
  padding:40px 24px;text-align:center;
  background:rgba(17,28,49,.4);
}
.empty svg{width:38px;height:38px;margin:0 auto 14px;opacity:.7;}
.empty p{font-size:14px;color:var(--muted);}
.empty a{display:inline-block;margin-top:10px;font-size:13.5px;color:var(--primary);font-weight:700;}

/* ============ CTA ============ */
.cta-panel{
  position:relative;overflow:hidden;
  border-radius:24px;
  padding:44px;
  background:linear-gradient(120deg,rgba(13,21,38,.94),rgba(17,28,49,.96));
  border:1px solid rgba(91,231,196,.26);
  box-shadow:var(--shadow);
  display:grid;grid-template-columns:1fr auto;gap:32px;align-items:center;
}
.cta-panel::before{
  content:"";position:absolute;inset:0;z-index:0;opacity:.22;
  background-image:url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center;
  filter:blur(2px);
}
.cta-panel::after{
  content:"";position:absolute;top:-60%;right:-10%;width:520px;height:520px;
  background:radial-gradient(circle,rgba(91,231,196,.24),transparent 66%);
  z-index:0;pointer-events:none;
}
.cta-panel > *{position:relative;z-index:1;}
.cta-panel h2{font-size:clamp(24px,2.8vw,34px);margin-bottom:12px;}
.cta-panel p{font-size:15px;color:var(--text-2);max-width:44em;}
.cta-panel__list{list-style:none;padding:0;margin:18px 0 0;display:flex;flex-wrap:wrap;gap:10px;}
.cta-panel__actions{display:flex;flex-direction:column;gap:12px;min-width:210px;}

/* ============ 表单（保留样式） ============ */
.field{display:flex;flex-direction:column;gap:7px;margin-bottom:14px;}
.field label{font-size:13px;color:var(--text-2);font-weight:600;}
.field .hint{font-size:12px;color:var(--muted);}
.input{
  height:48px;padding:0 15px;border-radius:12px;
  background:rgba(8,13,26,.9);
  border:1px solid var(--line);
  color:var(--text);font-size:15px;font-family:inherit;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.input::placeholder{color:#5D6B80;}
.input:hover{border-color:rgba(255,255,255,.2);}
.input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(91,231,196,.18);}
.input:disabled{opacity:.5;cursor:not-allowed;}
.field.is-error .input{border-color:var(--danger);box-shadow:0 0 0 3px rgba(255,107,107,.14);}
.field .err{font-size:12px;color:var(--danger);}
.form-note{font-size:12px;color:var(--muted);line-height:1.7;}
.form-note a{color:var(--primary);text-decoration:underline;text-underline-offset:3px;}

/* ============ FAQ ============ */
.faq-wrap{display:grid;grid-template-columns:repeat(12,1fr);gap:24px;}
.faq-side{grid-column:span 4;position:sticky;top:190px;align-self:start;}
.faq-side h2{font-size:clamp(26px,3vw,36px);margin-bottom:14px;}
.faq-side p{font-size:14.5px;color:var(--text-2);margin-bottom:20px;}
.faq-list{grid-column:span 8;display:flex;flex-direction:column;gap:0;}
.faq-item{
  border-bottom:1px solid var(--line);
  transition:background-color .25s ease;
}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:60px;padding:14px 16px 14px 18px;
  font-size:16px;font-weight:700;color:var(--text);
  cursor:pointer;list-style:none;
  position:relative;
  transition:color .2s ease;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--primary);}
.faq-item summary::after{
  content:"+";flex-shrink:0;
  width:26px;height:26px;border-radius:50%;
  display:grid;place-items:center;
  font-size:17px;font-weight:700;line-height:1;
  color:var(--primary);
  border:1px solid var(--line-strong);
  background:rgba(91,231,196,.08);
  transition:transform .25s ease,background-color .25s ease;
}
.faq-item[open] summary{color:var(--primary);}
.faq-item[open] summary::after{transform:rotate(45deg);background:rgba(91,231,196,.18);}
.faq-item[open]{background:rgba(91,231,196,.04);box-shadow:inset 2px 0 0 var(--primary);}
.faq-body{padding:0 18px 20px 18px;max-width:68ch;}
.faq-body p{font-size:15px;line-height:1.8;color:var(--text-2);}

/* ============ 页脚 ============ */
.site-footer{
  margin-top:24px;
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(8,13,26,.4),rgba(5,7,15,.96));
  padding:64px 0 0;
}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:32px;padding-bottom:44px;}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand p{font-size:13.5px;color:var(--muted);line-height:1.8;max-width:26em;}
.footer-col h4{font-size:13px;letter-spacing:.1em;color:var(--text-2);margin-bottom:16px;font-weight:700;}
.footer-col ul{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:10px;}
.footer-col a{font-size:14px;color:var(--muted);}
.footer-col a:hover{color:var(--primary);}
.footer-col p{font-size:13px;color:var(--muted);line-height:1.8;}
.footer-bottom{
  border-top:1px solid var(--line);
  padding:20px 0 26px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:12.5px;color:var(--muted);
  background:rgba(5,7,15,.6);
}
.footer-bottom .sep{opacity:.4;margin:0 8px;}

/* ============ 移动抽屉 ============ */
.drawer-mask{
  position:fixed;inset:0;z-index:200;
  background:rgba(3,5,12,.72);
  opacity:0;visibility:hidden;
  transition:opacity .28s ease,visibility .28s ease;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;top:0;right:0;bottom:0;z-index:210;
  width:min(340px,86vw);
  background:linear-gradient(180deg,#0B1220,#080D1A);
  border-left:1px solid var(--line);
  transform:translateX(100%);
  transition:transform .3s cubic-bezier(.22,.8,.32,1);
  display:flex;flex-direction:column;
  padding:20px 20px 24px;
  overflow-y:auto;
}
.drawer.is-open{transform:translateX(0);}
.drawer__head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:22px;}
.drawer__close{
  width:40px;height:40px;border-radius:12px;border:1px solid var(--line);
  background:var(--surface);display:grid;place-items:center;font-size:20px;color:var(--text-2);
}
.drawer__close:hover{color:var(--primary);border-color:var(--line-strong);}
.drawer nav{display:flex;flex-direction:column;gap:4px;margin-bottom:auto;}
.drawer nav a{
  display:flex;align-items:center;min-height:48px;padding:0 14px;
  border-radius:12px;font-size:15px;color:var(--text-2);
  border:1px solid transparent;
  transition:background-color .2s ease,color .2s ease,border-color .2s ease;
}
.drawer nav a:hover,.drawer nav a.is-active{background:rgba(91,231,196,.09);color:var(--primary);border-color:var(--line-strong);}
.drawer__cta{margin-top:22px;}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .container{max-width:1060px;}
  .nav__links{gap:18px;}
  .nav__links a{font-size:14px;}
  .gallery{grid-template-columns:repeat(3,1fr);}
  .gallery a.is-big{grid-row:span 1;grid-column:span 2;}
  .metrics{grid-template-columns:repeat(2,1fr);}
}
@media (max-width:991px){
  :root{--nav-h:64px;}
  .nav__links{display:none;}
  .nav__burger{display:flex;}
  .nav__actions .btn--sm{display:none;}
  .topbar__tip{display:none;}
  .hero{padding:64px 0 60px;}
  .hero__inner{grid-template-columns:1fr;}
  .hero__copy,.hero__card{grid-column:span 12;}
  .hero__card{margin-top:8px;}
  .countdown{top:64px;}
  .track__left,.track__right,.faq-side,.faq-list,.news__main,.news__side{grid-column:span 12;}
  .track__left,.faq-side,.news-aside{position:static;}
  .track__right{grid-template-columns:repeat(2,1fr);}
  .card--wide{grid-column:span 2;}
  .gallery{grid-template-columns:repeat(2,1fr);}
  .gallery a.is-big{grid-column:span 2;grid-row:span 1;}
  .cta-panel{grid-template-columns:1fr;padding:32px;}
  .cta-panel__actions{flex-direction:row;flex-wrap:wrap;}
  .cta-panel__actions .btn{flex:1 1 180px;}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .section{padding:72px 0;}
  .section--tight{padding:56px 0;}
}
@media (max-width:767px){
  .container{padding:0 18px;}
  .hero h1{font-size:clamp(28px,7vw,38px);}
  .hero__sub{font-size:15.5px;}
  .hero__actions .btn{flex:1 1 100%;}
  .track__right{grid-template-columns:1fr;}
  .card--wide{grid-column:span 1;}
  .metrics{grid-template-columns:1fr 1fr;}
  .countdown__inner{flex-direction:column;align-items:flex-start;gap:10px;padding:10px 0;}
  .cd-block{min-width:44px;height:46px;}
  .cd-num{font-size:19px;}
  .news-row{flex-direction:row;}
  .faq-item summary{font-size:15px;min-height:56px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
  .section__head{margin-bottom:32px;}
}
@media (max-width:575px){
  .topbar__inner{height:34px;}
  .topbar__domain{font-size:11.5px;}
  .topbar__actions{gap:10px;}
  .gallery{grid-template-columns:1fr;}
  .gallery a,.gallery a.is-big,.gallery a.is-tall{grid-column:span 1;grid-row:span 1;aspect-ratio:16/10;}
  .metrics{grid-template-columns:1fr;}
  .brand__text strong{font-size:15px;}
  .brand__text em{font-size:10px;letter-spacing:.12em;}
  .cta-panel{padding:24px;border-radius:18px;}
  .faq-body{padding:0 14px 18px 14px;}
  .faq-body p{font-size:14.5px;}
  .hero__card{padding:20px;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
    scroll-behavior:auto !important;
  }
  .card:hover,.metric:hover,.gallery a:hover,.news-row:hover,.news-feature:hover{transform:none;}
}

/* roulang page: category1 */
:root{
  --bg-0:#05070F;
  --bg-1:#080D1A;
  --bg-2:#0D1526;
  --surface:#111C31;
  --surface-2:#16233B;
  --line:rgba(255,255,255,.10);
  --line-strong:rgba(91,231,196,.28);
  --text:#F4F8FF;
  --text-2:#B9C6DA;
  --muted:#8494AC;
  --primary:#5BE7C4;
  --primary-deep:#1FA88F;
  --primary-lime:#9BEF8A;
  --accent:#FFB35C;
  --success:#5BE7C4;
  --warning:#FFB35C;
  --danger:#FF6B6B;
  --radius-lg:20px;
  --radius-md:16px;
  --radius-sm:12px;
  --radius-pill:999px;
  --shadow:0 18px 50px rgba(0,0,0,.28);
  --shadow-hover:0 26px 60px rgba(0,0,0,.42);
  --container:1200px;
  --gap:24px;
  --ease:cubic-bezier(.22,.61,.36,1);
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg-0);
  background-image:
    radial-gradient(900px 520px at 88% -8%, rgba(91,231,196,.12), transparent 62%),
    radial-gradient(760px 480px at -6% 78%, rgba(255,179,92,.08), transparent 66%),
    linear-gradient(180deg,#05070F 0%,#080D1A 45%,#05070F 100%);
  background-attachment:fixed;
  overflow-x:hidden;
}
body.is-locked{overflow:hidden;}
img{max-width:100%;display:block;border:0;}
a{color:var(--primary);text-decoration:none;transition:color .22s var(--ease);}
a:hover{color:var(--primary-lime);}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
:focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:6px;}

.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 24px;
}

/* ---------- 顶部信息条 ---------- */
.topbar{
  background:linear-gradient(90deg,rgba(13,21,38,.96),rgba(8,13,26,.96));
  border-bottom:1px solid var(--line);
  font-size:12px;
  color:var(--muted);
  height:38px;
}
.topbar__inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  height:38px;
}
.topbar__domain{
  display:inline-flex;
  align-items:center;
  gap:8px;
  letter-spacing:.02em;
  color:var(--text-2);
  font-variant-numeric:tabular-nums;
}
.topbar__domain i{
  width:6px;height:6px;border-radius:50%;
  background:var(--primary);
  box-shadow:0 0 10px rgba(91,231,196,.8);
  display:inline-block;
}
.topbar__tips{color:var(--muted);}
.topbar__actions{display:inline-flex;align-items:center;gap:14px;}
.topbar__link{color:var(--text-2);font-size:12px;}
.topbar__link:hover{color:var(--primary);}
.topbar__pill{
  display:inline-flex;align-items:center;
  height:24px;padding:0 12px;
  border-radius:var(--radius-pill);
  border:1px solid var(--line-strong);
  color:var(--primary);
  font-size:12px;
  background:rgba(91,231,196,.07);
  transition:background .22s var(--ease),transform .22s var(--ease);
}
.topbar__pill:hover{background:rgba(91,231,196,.16);transform:translateY(-1px);}

/* ---------- 主导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:90;
  background:rgba(6,10,20,.82);
  border-bottom:1px solid transparent;
  transition:background .28s var(--ease),border-color .28s var(--ease),backdrop-filter .28s var(--ease);
}
.site-header.is-scrolled{
  background:linear-gradient(180deg,rgba(9,15,28,.92),rgba(6,10,20,.78));
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom-color:var(--line);
}
.nav{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  height:72px;
}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--text);}
.brand:hover{color:var(--text);}
.brand__mark{
  width:38px;height:38px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:12px;
  border:1px solid var(--line-strong);
  background:radial-gradient(circle at 30% 20%,rgba(91,231,196,.22),rgba(17,28,49,.9));
  box-shadow:0 0 18px rgba(91,231,196,.16);
  flex:0 0 auto;
}
.brand__mark svg{width:22px;height:22px;}
.brand__text{display:flex;flex-direction:column;line-height:1.15;}
.brand__text strong{font-size:15px;font-weight:800;letter-spacing:.04em;}
.brand__text em{font-style:normal;font-size:11px;color:var(--muted);letter-spacing:.08em;}

.nav__links{display:flex;align-items:center;gap:6px;}
.nav__links a{
  position:relative;
  display:inline-flex;
  align-items:center;
  height:40px;
  padding:0 12px;
  font-size:15px;
  color:var(--text-2);
  border-radius:10px;
  transition:color .22s var(--ease),background .22s var(--ease);
}
.nav__links a:hover{color:var(--primary);background:rgba(91,231,196,.06);}
.nav__links a.is-active{color:var(--text);font-weight:700;}
.nav__links a.is-active::after{
  content:"";
  position:absolute;
  left:12px;right:12px;
  bottom:2px;
  height:2px;
  border-radius:2px;
  background:linear-gradient(90deg,var(--primary),var(--primary-lime));
  box-shadow:0 0 10px rgba(91,231,196,.65);
}
.nav__links a.is-active::before{
  content:"";
  position:absolute;
  left:50%;transform:translateX(-50%);
  bottom:-1px;
  width:5px;height:5px;border-radius:50%;
  background:var(--primary);
  box-shadow:0 0 10px rgba(91,231,196,.9);
}
.nav__actions{display:flex;align-items:center;gap:12px;}
.nav__burger{
  display:none;
  width:44px;height:44px;
  border-radius:12px;
  border:1px solid var(--line);
  background:rgba(17,28,49,.8);
  align-items:center;
  justify-content:center;
}
.nav__burger span{
  position:relative;
  display:block;
  width:18px;height:2px;
  border-radius:2px;
  background:var(--text);
}
.nav__burger span::before,
.nav__burger span::after{
  content:"";
  position:absolute;left:0;
  width:18px;height:2px;border-radius:2px;
  background:var(--text);
}
.nav__burger span::before{top:-6px;}
.nav__burger span::after{top:6px;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 24px;
  border-radius:var(--radius-pill);
  font-size:15px;
  font-weight:700;
  letter-spacing:.02em;
  border:1px solid transparent;
  cursor:pointer;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),background .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease),opacity .22s var(--ease);
  white-space:nowrap;
}
.btn--primary{
  color:#04120F;
  background:linear-gradient(135deg,var(--primary) 0%,var(--primary-lime) 100%);
  box-shadow:0 12px 30px rgba(91,231,196,.26);
}
.btn--primary:hover{
  color:#04120F;
  transform:translateY(-2px);
  filter:brightness(1.06);
  box-shadow:0 18px 40px rgba(91,231,196,.36);
}
.btn--primary:active{transform:translateY(0);box-shadow:0 8px 20px rgba(91,231,196,.22);}
.btn--ghost{
  color:var(--text);
  border-color:var(--line-strong);
  background:rgba(91,231,196,.05);
}
.btn--ghost:hover{
  color:var(--primary);
  border-color:var(--primary);
  background:rgba(91,231,196,.12);
  transform:translateY(-2px);
}
.btn--ghost:active{transform:translateY(0);}
.btn--sm{height:40px;padding:0 18px;font-size:14px;}
.btn:disabled,.btn[aria-disabled="true"]{opacity:.45;box-shadow:none;cursor:not-allowed;transform:none;}

/* ---------- 面包屑 ---------- */
.crumbs-wrap{padding:22px 0 0;}
.crumbs{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:12px;
  color:var(--muted);
  overflow-x:auto;
  white-space:nowrap;
  padding-bottom:4px;
}
.crumbs a{color:var(--muted);}
.crumbs a:hover{color:var(--primary);}
.crumbs span.sep{color:rgba(255,255,255,.22);}
.crumbs .current{color:var(--primary);}

/* ---------- 分类页紧凑首屏 ---------- */
.page-hero{padding:26px 0 8px;}
.hero-grid{
  display:grid;
  grid-template-columns:6fr 6fr;
  gap:var(--gap);
  align-items:center;
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:28px;
  padding:0 14px;
  border-radius:var(--radius-pill);
  border:1px solid var(--line-strong);
  background:rgba(91,231,196,.08);
  color:var(--primary);
  font-size:12px;
  letter-spacing:.06em;
  margin-bottom:18px;
}
.eyebrow i{
  width:6px;height:6px;border-radius:50%;
  background:var(--primary);
  box-shadow:0 0 10px rgba(91,231,196,.9);
}
.page-hero h1{
  font-size:clamp(30px,4vw,48px);
  line-height:1.18;
  font-weight:800;
  letter-spacing:.01em;
  margin-bottom:16px;
}
.page-hero h1 .hl{
  background:linear-gradient(120deg,var(--primary),var(--primary-lime));
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.hero-sub{
  font-size:17px;
  line-height:1.8;
  color:var(--text-2);
  max-width:56ch;
  margin-bottom:24px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:22px;}
.trust-row{display:flex;flex-wrap:wrap;gap:10px;}
.trust-tag{
  display:inline-flex;align-items:center;gap:7px;
  height:30px;padding:0 14px;
  border-radius:var(--radius-pill);
  border:1px solid var(--line);
  background:rgba(17,28,49,.7);
  font-size:12px;
  color:var(--text-2);
}
.trust-tag svg{width:13px;height:13px;stroke:var(--primary);fill:none;stroke-width:2;}

.hero-figure{
  position:relative;
  border-radius:var(--radius-lg);
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--shadow);
  background:var(--surface);
}
.hero-figure img{
  width:100%;
  aspect-ratio:16/11;
  object-fit:cover;
  transition:transform .6s var(--ease);
}
.hero-figure:hover img{transform:scale(1.03);}
.hero-figure::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(5,7,15,0) 38%,rgba(5,7,15,.86) 100%);
  pointer-events:none;
}
.figure-meta{
  position:absolute;
  left:18px;right:18px;bottom:16px;
  z-index:2;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
}
.figure-meta strong{font-size:15px;font-weight:700;}
.figure-meta span{
  font-size:12px;
  color:var(--text-2);
  border:1px solid var(--line);
  border-radius:var(--radius-pill);
  padding:3px 10px;
  background:rgba(8,13,26,.7);
  font-variant-numeric:tabular-nums;
}

/* ---------- 锚点胶囊 ---------- */
.anchor-nav{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  padding:26px 0 0;
}
.anchor-chip{
  display:inline-flex;
  align-items:center;
  height:36px;
  padding:0 16px;
  border-radius:var(--radius-pill);
  border:1px solid var(--line);
  background:rgba(17,28,49,.72);
  color:var(--text-2);
  font-size:13px;
  transition:border-color .22s var(--ease),color .22s var(--ease),background .22s var(--ease),transform .22s var(--ease);
}
.anchor-chip:hover{
  color:var(--primary);
  border-color:var(--line-strong);
  background:rgba(91,231,196,.1);
  transform:translateY(-2px);
}

/* ---------- 板块通用 ---------- */
.section{padding:76px 0 0;}
.section-head{max-width:720px;margin-bottom:34px;}
.section-kicker{
  display:block;
  font-size:12px;
  letter-spacing:.16em;
  color:var(--primary);
  margin-bottom:12px;
  font-variant-numeric:tabular-nums;
}
.section-title{
  font-size:clamp(24px,3vw,34px);
  line-height:1.24;
  font-weight:800;
  letter-spacing:.01em;
  margin-bottom:12px;
}
.section-desc{font-size:15px;line-height:1.85;color:var(--text-2);}

/* ---------- 两步：步骤 + 入口信息卡 ---------- */
.split{
  display:grid;
  grid-template-columns:8fr 4fr;
  gap:var(--gap);
  align-items:start;
}
.steps{position:relative;padding-left:0;}
.step{
  position:relative;
  display:grid;
  grid-template-columns:64px 1fr;
  gap:18px;
  padding:24px 26px;
  border-radius:var(--radius-lg);
  border:1px solid var(--line);
  background:linear-gradient(180deg,var(--surface),var(--bg-2));
  box-shadow:var(--shadow);
  margin-bottom:18px;
  transition:transform .25s var(--ease),border-color .25s var(--ease),box-shadow .25s var(--ease);
}
.step:hover{
  transform:translateY(-4px);
  border-color:var(--line-strong);
  box-shadow:var(--shadow-hover);
}
.step:last-child{margin-bottom:0;}
.step__num{
  display:flex;
  align-items:center;
  justify-content:center;
  width:56px;height:56px;
  border-radius:16px;
  font-size:18px;
  font-weight:800;
  font-variant-numeric:tabular-nums;
  color:var(--primary);
  border:1px solid var(--line-strong);
  background:radial-gradient(circle at 30% 20%,rgba(91,231,196,.22),rgba(13,21,38,.9));
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08);
}
.step__body h3{font-size:20px;font-weight:800;margin-bottom:8px;line-height:1.4;}
.step__body p{font-size:15px;color:var(--text-2);line-height:1.85;margin-bottom:12px;}
.step__points{display:flex;flex-wrap:wrap;gap:8px;}
.step__points li{
  font-size:12px;
  color:var(--text-2);
  border:1px solid var(--line);
  border-radius:var(--radius-pill);
  padding:4px 12px;
  background:rgba(8,13,26,.6);
}
.step__points li strong{color:var(--primary);font-weight:700;}

/* 入口信息卡 */
.entry-card{
  position:sticky;
  top:96px;
  border-radius:var(--radius-lg);
  padding:26px;
  border:1px solid var(--line-strong);
  background:linear-gradient(180deg,rgba(18,28,48,.9),rgba(10,16,30,.78));
  box-shadow:var(--shadow);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
}
.entry-card::before{
  content:"";
  position:absolute;
  inset:0;
  border-radius:var(--radius-lg);
  pointer-events:none;
  background:linear-gradient(180deg,rgba(255,255,255,.06),transparent 42%);
}
.entry-card h3{font-size:18px;font-weight:800;margin-bottom:6px;}
.entry-card .entry-lead{font-size:13px;color:var(--muted);margin-bottom:18px;}
.entry-row{
  display:flex;
  align-items:flex-start;
  gap:12px;
  padding:14px 0;
  border-bottom:1px dashed rgba(255,255,255,.1);
}
.entry-row:last-of-type{border-bottom:0;}
.entry-row .ico{
  flex:0 0 auto;
  width:32px;height:32px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:10px;
  border:1px solid var(--line-strong);
  background:rgba(91,231,196,.1);
}
.entry-row .ico svg{width:16px;height:16px;stroke:var(--primary);fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;}
.entry-row dl{margin:0;}
.entry-row dt{font-size:14px;font-weight:700;color:var(--text);margin-bottom:2px;}
.entry-row dd{margin:0;font-size:13px;color:var(--text-2);line-height:1.7;}
.entry-card .btn{width:100%;margin-top:18px;}
.entry-note{
  margin-top:14px;
  font-size:12px;
  line-height:1.75;
  color:var(--muted);
  border-top:1px solid var(--line);
  padding-top:14px;
}

/* ---------- 检查清单 ---------- */
.check-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:18px;
}
.check-card{
  border-radius:var(--radius-md);
  border:1px solid var(--line);
  background:linear-gradient(180deg,var(--surface-2),var(--bg-2));
  padding:24px;
  transition:transform .25s var(--ease),border-color .25s var(--ease),box-shadow .25s var(--ease);
}
.check-card:hover{
  transform:translateY(-4px);
  border-color:var(--line-strong);
  box-shadow:var(--shadow-hover);
}
.check-card .check-ico{
  width:42px;height:42px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:12px;
  border:1px solid var(--line-strong);
  background:rgba(255,179,92,.1);
  margin-bottom:16px;
}
.check-card .check-ico svg{width:20px;height:20px;stroke:var(--accent);fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;}
.check-card h3{font-size:17px;font-weight:800;margin-bottom:8px;}
.check-card p{font-size:14px;color:var(--text-2);line-height:1.85;}
.check-card .check-tip{
  display:inline-flex;
  align-items:center;
  gap:6px;
  margin-top:14px;
  font-size:12px;
  color:var(--primary);
  border:1px solid var(--line-strong);
  border-radius:var(--radius-pill);
  padding:3px 12px;
  background:rgba(91,231,196,.08);
}

/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:12px;}
.faq-item{
  border:1px solid var(--line);
  border-radius:var(--radius-md);
  background:var(--surface);
  overflow:hidden;
  transition:border-color .25s var(--ease),background .25s var(--ease);
}
.faq-item[open]{
  border-color:var(--line-strong);
  background:rgba(91,231,196,.04);
  box-shadow:inset 2px 0 0 var(--primary);
}
.faq-item summary{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  min-height:56px;
  padding:14px 22px;
  cursor:pointer;
  list-style:none;
  font-size:16px;
  font-weight:700;
  color:var(--text);
  transition:color .22s var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--primary);}
.faq-item summary .plus{
  flex:0 0 auto;
  width:26px;height:26px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:50%;
  border:1px solid var(--line-strong);
  color:var(--primary);
  font-size:16px;
  line-height:1;
  transition:transform .28s var(--ease),background .28s var(--ease);
}
.faq-item[open] summary .plus{transform:rotate(45deg);background:rgba(91,231,196,.14);}
.faq-a{
  padding:0 22px 20px;
  max-width:68ch;
  font-size:15px;
  line-height:1.85;
  color:var(--text-2);
}

/* ---------- 交叉分类 ---------- */
.cross-wrap{padding-top:20px;}
.cross-links{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  padding:26px;
  border-radius:var(--radius-lg);
  border:1px solid var(--line);
  background:linear-gradient(180deg,rgba(17,28,49,.8),rgba(8,13,26,.7));
}
.cross-chip{
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:42px;
  padding:0 20px;
  border-radius:var(--radius-pill);
  border:1px solid var(--line);
  background:rgba(8,13,26,.7);
  color:var(--text-2);
  font-size:14px;
  transition:transform .22s var(--ease),border-color .22s var(--ease),color .22s var(--ease),background .22s var(--ease);
}
.cross-chip svg{width:14px;height:14px;stroke:currentColor;fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;}
.cross-chip:hover{
  color:var(--primary);
  border-color:var(--line-strong);
  background:rgba(91,231,196,.1);
  transform:translateY(-2px);
}

/* ---------- CTA 面板 ---------- */
.cta-panel{
  position:relative;
  margin-top:64px;
  border-radius:var(--radius-lg);
  padding:42px;
  overflow:hidden;
  border:1px solid var(--line-strong);
  background:
    linear-gradient(180deg,rgba(18,28,48,.88),rgba(10,16,30,.82)),
    url("/assets/images/backpic/back-2.webp") center/cover no-repeat;
  box-shadow:var(--shadow);
  display:grid;
  grid-template-columns:1fr auto;
  gap:24px;
  align-items:center;
}
.cta-panel::after{
  content:"";
  position:absolute;
  right:-120px;top:-120px;
  width:340px;height:340px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(91,231,196,.28),transparent 66%);
  pointer-events:none;
}
.cta-panel h2{font-size:clamp(22px,2.6vw,30px);font-weight:800;line-height:1.3;margin-bottom:10px;}
.cta-panel p{font-size:15px;color:var(--text-2);max-width:60ch;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;position:relative;z-index:2;}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:96px;
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(8,13,26,.6),rgba(5,7,15,.96));
  padding:64px 0 26px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1.2fr;
  gap:36px;
  padding-bottom:40px;
  border-bottom:1px solid var(--line);
}
.footer-brand p{
  margin-top:16px;
  font-size:14px;
  line-height:1.85;
  color:var(--muted);
  max-width:34ch;
}
.footer-col h4{
  font-size:14px;
  font-weight:800;
  letter-spacing:.06em;
  color:var(--text);
  margin-bottom:16px;
}
.footer-col ul{display:grid;gap:10px;}
.footer-col a{font-size:14px;color:var(--text-2);}
.footer-col a:hover{color:var(--primary);}
.footer-col p{font-size:13px;line-height:1.85;color:var(--muted);}
.footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  padding-top:22px;
  font-size:12px;
  color:var(--muted);
}
.footer-bottom .sep{margin:0 8px;color:rgba(255,255,255,.2);}

/* ---------- 抽屉 ---------- */
.drawer{
  position:fixed;
  inset:0;
  z-index:120;
  display:none;
}
.drawer.is-open{display:block;}
.drawer__mask{
  position:absolute;
  inset:0;
  background:rgba(3,5,10,.72);
  backdrop-filter:blur(3px);
}
.drawer__panel{
  position:absolute;
  top:0;right:0;bottom:0;
  width:min(340px,86vw);
  background:linear-gradient(180deg,#0A1120,#070B16);
  border-left:1px solid var(--line);
  padding:22px 22px 26px;
  display:flex;
  flex-direction:column;
  transform:translateX(100%);
  transition:transform .32s var(--ease);
  overflow-y:auto;
}
.drawer.is-open .drawer__panel{transform:translateX(0);}
.drawer__head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding-bottom:18px;
  border-bottom:1px solid var(--line);
}
.drawer__close{
  width:40px;height:40px;
  border-radius:10px;
  border:1px solid var(--line);
  display:inline-flex;align-items:center;justify-content:center;
  color:var(--text-2);
  font-size:18px;
}
.drawer__close:hover{color:var(--primary);border-color:var(--line-strong);}
.drawer__links{display:grid;gap:6px;padding:18px 0;flex:1;}
.drawer__links a{
  display:flex;
  align-items:center;
  height:48px;
  padding:0 14px;
  border-radius:12px;
  font-size:15px;
  color:var(--text-2);
  border:1px solid transparent;
}
.drawer__links a:hover{background:rgba(91,231,196,.08);color:var(--primary);}
.drawer__links a.is-active{
  color:var(--primary);
  border-color:var(--line-strong);
  background:rgba(91,231,196,.1);
  font-weight:700;
}
.drawer__cta{display:grid;gap:10px;padding-top:18px;border-top:1px solid var(--line);}
.drawer__cta .btn{width:100%;}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .container{padding:0 20px;}
  .nav__links a{padding:0 9px;font-size:14px;}
}
@media (max-width:991px){
  .topbar__tips{display:none;}
  .nav__links{display:none;}
  .nav__burger{display:inline-flex;}
  .nav__actions .btn--sm{display:none;}
  .hero-grid{grid-template-columns:1fr;gap:28px;}
  .split{grid-template-columns:1fr;}
  .entry-card{position:static;}
  .check-grid{grid-template-columns:1fr 1fr;}
  .cta-panel{grid-template-columns:1fr;padding:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .section{padding:60px 0 0;}
  .site-footer{margin-top:68px;}
}
@media (max-width:767px){
  .topbar{height:34px;}
  .topbar__inner{height:34px;}
  .topbar__actions{gap:10px;}
  .topbar__pill{height:22px;padding:0 10px;font-size:11px;}
  .nav{height:64px;}
  .page-hero h1{font-size:clamp(26px,6.4vw,34px);}
  .hero-sub{font-size:15.5px;}
  .hero-actions .btn{width:100%;}
  .step{grid-template-columns:1fr;padding:20px;gap:14px;}
  .step__num{width:48px;height:48px;font-size:16px;}
  .check-grid{grid-template-columns:1fr;}
  .faq-item summary{font-size:15px;padding:14px 18px;}
  .faq-a{padding:0 18px 18px;font-size:14.5px;}
  .cta-panel{padding:26px;}
  .cta-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
  .cross-links{padding:20px;}
  .cross-chip{height:40px;padding:0 16px;font-size:13px;}
}
@media (max-width:520px){
  .container{padding:0 16px;}
  .topbar__domain span{display:none;}
  .brand__text strong{font-size:14px;}
  .brand__text em{font-size:10px;}
  body{font-size:15.5px;line-height:1.85;}
  .section-title{font-size:23px;}
  .hero-figure img{aspect-ratio:4/3;}
  .figure-meta{left:14px;right:14px;bottom:12px;}
  .figure-meta strong{font-size:13.5px;}
}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
  }
  .step:hover,.check-card:hover,.anchor-chip:hover,.cross-chip:hover,.btn:hover{transform:none;}
  .hero-figure:hover img{transform:none;}
}

/* roulang page: article */
:root{
  --bg-0:#05070F; --bg-1:#080D1A; --bg-2:#0D1526;
  --surface:#111C31; --surface-2:#16233B;
  --line:rgba(255,255,255,.10); --line-strong:rgba(91,231,196,.28);
  --text:#F4F8FF; --text-2:#B9C6DA; --muted:#8494AC;
  --primary:#5BE7C4; --primary-deep:#1FA88F; --accent:#FFB35C;
  --success:#5BE7C4; --warning:#FFB35C; --danger:#FF6B6B;
  --r-lg:20px; --r-md:16px; --r-sm:12px; --r-pill:999px;
  --shadow:0 18px 50px rgba(0,0,0,.28);
  --shadow-hover:0 24px 60px rgba(0,0,0,.42);
  --container:1200px;
  --gap:24px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;padding:0;
  font-family:"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  font-size:16px;line-height:1.8;color:var(--text-2);
  background:
    radial-gradient(900px 520px at 88% -8%, rgba(91,231,196,.12), transparent 62%),
    radial-gradient(760px 520px at -6% 82%, rgba(255,179,92,.08), transparent 60%),
    var(--bg-0);
  min-height:100vh;
}
body.is-locked{overflow:hidden;}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}
input,textarea,select{font:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;color:var(--text);font-weight:800;letter-spacing:.01em;}
p{margin:0;}
svg{max-width:100%;}
:focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:6px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
.skip{position:absolute;left:-9999px;top:0;background:var(--primary);color:#04231D;padding:10px 18px;border-radius:0 0 10px 0;z-index:200;}
.skip:focus{left:0;}
.tnum{font-variant-numeric:tabular-nums;}

/* 阅读进度 */
.read-progress{position:fixed;left:0;top:0;width:100%;height:3px;background:transparent;z-index:120;pointer-events:none;}
.read-progress span{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--primary),#9BEF8A);transition:width .12s linear;}

/* 顶部信息条 */
.topbar{background:#04060C;border-bottom:1px solid var(--line);}
.topbar__inner{display:flex;align-items:center;justify-content:space-between;gap:16px;height:38px;font-size:12px;color:var(--muted);}
.topbar__domain{letter-spacing:.04em;color:#7C8DA8;}
.topbar__tips{display:inline-flex;align-items:center;gap:8px;color:#96A6BE;}
.topbar__tips::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--primary);box-shadow:0 0 10px rgba(91,231,196,.8);}
.topbar__actions{display:flex;align-items:center;gap:14px;}
.topbar__actions a{color:var(--text-2);transition:color .2s ease;}
.topbar__actions a:hover{color:var(--primary);}
.topbar__pill{border:1px solid var(--line-strong);border-radius:var(--r-pill);padding:3px 12px;color:var(--primary)!important;background:rgba(91,231,196,.06);}
.topbar__pill:hover{background:rgba(91,231,196,.14);}

/* 主导航 */
.site-header{position:sticky;top:0;z-index:100;background:rgba(6,10,20,.72);backdrop-filter:blur(0px);border-bottom:1px solid transparent;transition:background .25s ease,backdrop-filter .25s ease,border-color .25s ease;}
.site-header.is-scrolled{background:rgba(6,10,20,.86);backdrop-filter:blur(16px);border-bottom-color:var(--line);}
.nav{display:flex;align-items:center;justify-content:space-between;gap:20px;height:72px;}
.brand{display:inline-flex;align-items:center;gap:12px;flex-shrink:0;}
.brand__mark{width:40px;height:40px;border-radius:12px;display:grid;place-items:center;background:linear-gradient(160deg,rgba(91,231,196,.20),rgba(91,231,196,.04));border:1px solid var(--line-strong);box-shadow:inset 0 1px 0 rgba(255,255,255,.07);}
.brand__mark svg{width:22px;height:22px;}
.brand__text{display:flex;flex-direction:column;line-height:1.18;}
.brand__text strong{font-size:16px;color:var(--text);letter-spacing:.06em;}
.brand__text em{font-style:normal;font-size:12px;color:var(--primary);letter-spacing:.10em;}
.nav__links{display:flex;align-items:center;gap:6px;}
.nav__links a{position:relative;display:inline-flex;align-items:center;height:40px;padding:0 14px;font-size:15px;color:var(--text-2);border-radius:10px;transition:color .2s ease,background .2s ease;}
.nav__links a:hover{color:var(--primary);background:rgba(91,231,196,.06);}
.nav__links a.is-active{color:var(--primary);}
.nav__links a.is-active::after{content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;border-radius:2px;background:linear-gradient(90deg,var(--primary),#9BEF8A);box-shadow:0 0 10px rgba(91,231,196,.7);}
.nav__links a.is-active::before{content:"";position:absolute;left:50%;bottom:-3px;width:5px;height:5px;margin-left:-2.5px;border-radius:50%;background:var(--primary);box-shadow:0 0 8px var(--primary);}
.nav__actions{display:flex;align-items:center;gap:12px;}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 24px;border-radius:var(--r-pill);font-size:15px;font-weight:700;letter-spacing:.02em;text-align:center;transition:transform .18s ease,box-shadow .18s ease,background .18s ease,border-color .18s ease,color .18s ease;}
.btn--primary{background:linear-gradient(135deg,var(--primary),#9BEF8A);color:#04231D;box-shadow:0 12px 30px rgba(91,231,196,.26);}
.btn--primary:hover{transform:translateY(-2px);box-shadow:0 18px 40px rgba(91,231,196,.36);filter:brightness(1.05);}
.btn--primary:active{transform:translateY(0);box-shadow:0 8px 20px rgba(91,231,196,.22);}
.btn--ghost{background:transparent;border:1px solid var(--line);color:var(--text);}
.btn--ghost:hover{border-color:var(--line-strong);color:var(--primary);background:rgba(91,231,196,.06);transform:translateY(-2px);}
.btn--sm{height:40px;padding:0 18px;font-size:14px;}
.btn[disabled],.btn.is-disabled{opacity:.45;box-shadow:none;transform:none;cursor:not-allowed;}
.nav__burger{display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);align-items:center;justify-content:center;}
.nav__burger span{position:relative;display:block;width:18px;height:2px;border-radius:2px;background:var(--text);}
.nav__burger span::before,.nav__burger span::after{content:"";position:absolute;left:0;width:18px;height:2px;border-radius:2px;background:var(--text);}
.nav__burger span::before{top:-6px;}
.nav__burger span::after{top:6px;}

/* 抽屉 */
.drawer{position:fixed;inset:0;z-index:150;display:none;}
.drawer.is-open{display:block;}
.drawer__mask{position:absolute;inset:0;background:rgba(3,6,12,.72);}
.drawer__panel{position:absolute;top:0;right:0;width:min(84vw,340px);height:100%;background:#070C18;border-left:1px solid var(--line);padding:20px;display:flex;flex-direction:column;gap:18px;transform:translateX(100%);transition:transform .28s ease;}
.drawer.is-open .drawer__panel{transform:translateX(0);}
.drawer__head{display:flex;align-items:center;justify-content:space-between;}
.drawer__close{width:40px;height:40px;border-radius:12px;border:1px solid var(--line);display:grid;place-items:center;font-size:20px;color:var(--text-2);}
.drawer__close:hover{color:var(--primary);border-color:var(--line-strong);}
.drawer__links{display:flex;flex-direction:column;}
.drawer__links a{display:flex;align-items:center;height:48px;border-bottom:1px solid var(--line);font-size:15px;color:var(--text-2);}
.drawer__links a:hover,.drawer__links a.is-active{color:var(--primary);}
.drawer__cta{margin-top:auto;}

/* 面包屑 */
.crumbs{display:flex;align-items:center;gap:8px;padding:22px 0 0;font-size:12px;color:var(--muted);overflow-x:auto;white-space:nowrap;}
.crumbs a{color:var(--muted);transition:color .2s ease;}
.crumbs a:hover{color:var(--primary);}
.crumbs span.sep{color:#3B4A61;}
.crumbs__current{color:var(--primary);max-width:52ch;overflow:hidden;text-overflow:ellipsis;}

/* 文章头 */
.article-head{padding:26px 0 0;}
.article-head__inner{max-width:860px;}
.chip{display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;border-radius:var(--r-pill);border:1px solid var(--line-strong);background:rgba(91,231,196,.08);color:var(--primary);font-size:12px;letter-spacing:.04em;}
.article-head h1{margin-top:16px;font-size:clamp(28px,4vw,44px);line-height:1.24;}
.article-head__deck{margin-top:16px;font-size:16px;line-height:1.85;color:var(--text-2);max-width:72ch;}
.meta{margin-top:22px;display:flex;flex-wrap:wrap;align-items:center;gap:10px 22px;font-size:13px;color:var(--muted);}
.meta__item{display:inline-flex;align-items:center;gap:7px;}
.meta__dot{width:5px;height:5px;border-radius:50%;background:var(--primary);box-shadow:0 0 8px rgba(91,231,196,.7);}
.article-cover{margin:32px 0 0;border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow);position:relative;}
.article-cover img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.article-cover figcaption{position:absolute;left:0;right:0;bottom:0;padding:26px 20px 14px;font-size:12px;color:#DCE7F5;background:linear-gradient(180deg,transparent,rgba(4,7,14,.86));}

/* 正文主体 */
.article-main{padding:56px 0 0;}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:44px;align-items:start;}
.prose{font-size:17px;line-height:1.9;color:var(--text-2);max-width:820px;}
.prose > *:first-child{margin-top:0;}
.prose p{margin:0 0 18px;}
.prose h2{margin:42px 0 16px;padding-left:14px;border-left:4px solid var(--primary);font-size:clamp(22px,2.4vw,28px);line-height:1.35;scroll-margin-top:100px;}
.prose h3{margin:32px 0 12px;font-size:22px;line-height:1.4;scroll-margin-top:100px;}
.prose h4{margin:24px 0 10px;font-size:18px;}
.prose strong{color:var(--text);}
.prose ul,.prose ol{margin:0 0 18px;padding-left:22px;}
.prose ul li{position:relative;margin:8px 0;padding-left:4px;list-style:none;}
.prose ul li::before{content:"";position:absolute;left:-14px;top:.78em;width:6px;height:6px;border-radius:50%;background:var(--primary);opacity:.8;}
.prose ol{list-style:decimal;}
.prose ol li{margin:8px 0;padding-left:2px;}
.prose ol li::marker{color:var(--primary);font-weight:700;}
.prose blockquote{margin:0 0 20px;padding:16px 20px;border-left:3px solid var(--primary);border-radius:0 14px 14px 0;background:rgba(91,231,196,.05);color:#D5E2F1;}
.prose blockquote p:last-child{margin-bottom:0;}
.prose a{color:var(--primary);text-decoration:underline;text-underline-offset:3px;transition:color .2s ease;}
.prose a:hover{color:#9BEF8A;}
.prose img{border-radius:14px;border:1px solid var(--line);margin:6px 0 10px;}
.prose figure{margin:0 0 20px;}
.prose figcaption{font-size:13px;color:var(--muted);text-align:center;margin-top:8px;}
.prose table{width:100%;display:block;overflow-x:auto;border-collapse:collapse;margin:0 0 20px;font-size:15px;}
.prose th,.prose td{border:1px solid var(--line);padding:10px 14px;text-align:left;}
.prose th{background:var(--surface-2);color:var(--text);}
.prose code{background:rgba(255,255,255,.06);border-radius:6px;padding:2px 6px;font-size:14px;color:#CFE9E2;}
.prose hr{border:0;border-top:1px solid var(--line);margin:32px 0;}

/* 侧栏 */
.side{position:sticky;top:96px;display:flex;flex-direction:column;gap:18px;}
.panel{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);padding:20px;box-shadow:var(--shadow);}
.panel__title{display:flex;align-items:center;gap:8px;font-size:14px;font-weight:800;color:var(--text);letter-spacing:.04em;}
.panel__title::before{content:"";width:4px;height:14px;border-radius:2px;background:linear-gradient(180deg,var(--primary),var(--primary-deep));}
.toc{margin-top:14px;display:flex;flex-direction:column;gap:2px;max-height:46vh;overflow:auto;}
.toc a{display:block;padding:8px 10px;border-radius:10px;font-size:13.5px;line-height:1.6;color:var(--text-2);border-left:2px solid transparent;transition:background .2s ease,color .2s ease,border-color .2s ease;}
.toc a:hover{background:rgba(91,231,196,.07);color:var(--primary);border-left-color:var(--primary);}
.toc a.is-current{background:rgba(91,231,196,.10);color:var(--primary);border-left-color:var(--primary);}
.toc__empty{font-size:13px;color:var(--muted);margin-top:12px;}
.side__links{display:flex;flex-direction:column;gap:6px;margin-top:14px;}
.side__links a{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:9px 10px;border-radius:10px;font-size:13.5px;color:var(--text-2);transition:background .2s ease,color .2s ease;}
.side__links a:hover{background:rgba(91,231,196,.07);color:var(--primary);}
.side__links a span.arrow{color:var(--muted);font-size:13px;}
.side__note{margin-top:12px;font-size:13px;line-height:1.8;color:var(--muted);}
.side__note strong{color:var(--warning);font-weight:700;}
.side .btn{width:100%;margin-top:14px;}

/* 空态 */
.empty{border:1px dashed rgba(91,231,196,.35);border-radius:var(--r-md);padding:44px 24px;text-align:center;background:rgba(91,231,196,.03);}
.empty svg{width:44px;height:44px;margin:0 auto 14px;color:var(--primary);opacity:.8;}
.empty h2{font-size:20px;margin-bottom:8px;}
.empty p{font-size:14px;color:var(--muted);margin-bottom:18px;}
.empty .btn{width:auto;}

/* 主题延伸 */
.related{padding:72px 0 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;flex-wrap:wrap;margin-bottom:26px;}
.section-head h2{font-size:clamp(22px,2.6vw,30px);line-height:1.3;}
.section-head p{font-size:14px;color:var(--muted);margin-top:8px;max-width:60ch;}
.rel-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:var(--gap);}
.rel-card{display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden;transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;}
.rel-card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--shadow-hover);}
.rel-card:focus-within{border-color:var(--line-strong);box-shadow:var(--shadow-hover);}
.rel-card__media{position:relative;overflow:hidden;}
.rel-card__media img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .35s ease;}
.rel-card:hover .rel-card__media img{transform:scale(1.04);}
.rel-card__body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:8px;flex:1;}
.rel-card__tag{font-size:12px;color:var(--primary);letter-spacing:.06em;}
.rel-card__title{font-size:17px;line-height:1.5;color:var(--text);font-weight:700;}
.rel-card__desc{font-size:13.5px;line-height:1.75;color:var(--muted);}
.rel-card__more{margin-top:auto;font-size:13px;color:var(--primary);display:inline-flex;align-items:center;gap:6px;}

/* CTA */
.cta-wrap{padding:80px 0 88px;}
.cta-panel{position:relative;overflow:hidden;border-radius:var(--r-lg);border:1px solid var(--line-strong);padding:40px;display:grid;grid-template-columns:minmax(0,1fr) auto;gap:28px;align-items:center;background:linear-gradient(140deg,rgba(17,28,49,.96),rgba(8,13,26,.96));box-shadow:var(--shadow);}
.cta-panel::before{content:"";position:absolute;inset:0;background:url('/assets/images/backpic/back-1.png') center/cover no-repeat;opacity:.14;filter:blur(2px);}
.cta-panel::after{content:"";position:absolute;right:-120px;top:-120px;width:420px;height:420px;border-radius:50%;background:radial-gradient(circle,rgba(91,231,196,.30),transparent 68%);}
.cta-panel > *{position:relative;z-index:1;}
.cta-panel h2{font-size:clamp(22px,2.6vw,30px);line-height:1.32;}
.cta-panel p{margin-top:12px;font-size:15px;line-height:1.85;color:var(--text-2);max-width:62ch;}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;}

/* 页脚 */
.site-footer{margin-top:0;border-top:1px solid var(--line);background:#04060C;padding:56px 0 26px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:32px;}
.footer-brand p{margin-top:16px;font-size:13.5px;line-height:1.85;color:var(--muted);max-width:38ch;}
.footer-col h4{font-size:14px;color:var(--text);letter-spacing:.04em;margin-bottom:14px;}
.footer-col ul{display:flex;flex-direction:column;gap:9px;}
.footer-col a{font-size:13.5px;color:var(--muted);transition:color .2s ease;}
.footer-col a:hover{color:var(--primary);}
.footer-col p{font-size:13px;line-height:1.85;color:var(--muted);}
.footer-bottom{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-top:38px;padding-top:20px;border-top:1px solid var(--line);font-size:12.5px;color:#6C7C94;}
.footer-bottom .sep{margin:0 8px;color:#3B4A61;}

/* 响应式 */
@media (max-width:1199px){
  .article-layout{grid-template-columns:minmax(0,1fr) 272px;gap:32px;}
  .rel-grid{gap:20px;}
  .footer-grid{gap:26px;}
}
@media (max-width:991px){
  .nav__links{display:none;}
  .nav__burger{display:inline-flex;}
  .nav{height:64px;}
  .nav__actions .btn--primary{display:none;}
  .topbar__tips{display:none;}
  .article-layout{grid-template-columns:minmax(0,1fr);}
  .side{position:static;}
  .rel-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:30px;}
  .cta-panel{grid-template-columns:minmax(0,1fr);padding:32px;}
  .article-main{padding-top:44px;}
  .related{padding-top:56px;}
  .cta-wrap{padding:56px 0 64px;}
}
@media (max-width:767px){
  .container{padding:0 18px;}
  .topbar__inner{height:34px;}
  .topbar__actions a:first-child{display:none;}
  .article-head{padding-top:18px;}
  .article-head h1{margin-top:12px;}
  .article-head__deck{font-size:15px;}
  .prose{font-size:16px;}
  .rel-grid{grid-template-columns:minmax(0,1fr);}
  .section-head{margin-bottom:20px;}
  .article-cover{margin-top:24px;border-radius:var(--r-md);}
}
@media (max-width:575px){
  .brand__mark{width:36px;height:36px;border-radius:10px;}
  .brand__text strong{font-size:15px;}
  .brand__text em{font-size:11px;}
  .footer-grid{grid-template-columns:minmax(0,1fr);}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
  .prose{font-size:15.5px;line-height:1.85;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
  .panel{padding:16px;}
  .meta{gap:8px 16px;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important;scroll-behavior:auto!important;}
  .rel-card:hover{transform:none;}
}

/* roulang page: category3 */
:root{
  --bg-0:#05070F;
  --bg-1:#080D1A;
  --bg-2:#0D1526;
  --surface:#111C31;
  --surface-2:#16233B;
  --line:rgba(255,255,255,.10);
  --line-strong:rgba(91,231,196,.28);
  --text:#F4F8FF;
  --text-2:#B9C6DA;
  --muted:#8494AC;
  --primary:#5BE7C4;
  --primary-deep:#1FA88F;
  --accent:#FFB35C;
  --success:#5BE7C4;
  --warning:#FFB35C;
  --danger:#FF6B6B;
  --radius-lg:20px;
  --radius-md:16px;
  --radius-sm:12px;
  --radius-pill:999px;
  --shadow:0 18px 50px rgba(0,0,0,.28);
  --shadow-hover:0 26px 60px rgba(0,0,0,.44);
  --container:1200px;
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background-color:var(--bg-0);
  background-image:
    radial-gradient(900px 520px at 88% -6%, rgba(91,231,196,.12), transparent 62%),
    radial-gradient(760px 460px at -8% 104%, rgba(255,179,92,.08), transparent 64%),
    radial-gradient(circle at 1px 1px, rgba(255,255,255,.045) 1px, transparent 0);
  background-size:auto,auto,34px 34px;
  background-attachment:fixed;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;}
button,input{font-size:inherit;color:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
svg{display:block;}
:focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:6px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
.no-scroll{overflow:hidden;}

/* ---------- 顶部信息条 ---------- */
.topbar{
  background:linear-gradient(90deg,rgba(8,13,26,.96),rgba(13,21,38,.96));
  border-bottom:1px solid var(--line);
  font-size:12px;
  height:38px;
  display:flex;
  align-items:center;
}
.topbar__inner{display:flex;align-items:center;justify-content:space-between;gap:18px;width:100%;}
.topbar__domain{color:var(--muted);letter-spacing:.04em;font-variant-numeric:tabular-nums;}
.topbar__mid{color:var(--muted);letter-spacing:.06em;}
.topbar__right{display:flex;align-items:center;gap:14px;}
.topbar__link{color:var(--text-2);transition:color .2s var(--ease);}
.topbar__link:hover{color:var(--primary);}
.pill{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:var(--radius-pill);
  font-size:12px;line-height:1.6;
  border:1px solid var(--line);
  color:var(--text-2);
  transition:border-color .2s var(--ease),color .2s var(--ease),background .2s var(--ease);
}
.pill--accent{border-color:rgba(255,179,92,.42);color:var(--accent);}
.pill--accent:hover{background:rgba(255,179,92,.10);border-color:rgba(255,179,92,.7);}
.pill:hover{color:var(--primary);border-color:var(--line-strong);}

/* ---------- 主导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(5,7,15,.88);
  border-bottom:1px solid transparent;
  transition:background .3s var(--ease),border-color .3s var(--ease),backdrop-filter .3s var(--ease);
}
.site-header.is-scrolled{
  background:rgba(8,13,26,.80);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
}
.nav{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px;}
.brand{display:flex;align-items:center;gap:11px;flex-shrink:0;}
.brand__mark{
  width:40px;height:40px;border-radius:12px;
  display:grid;place-items:center;
  background:linear-gradient(160deg,rgba(91,231,196,.16),rgba(31,168,143,.06));
  border:1px solid var(--line-strong);
  box-shadow:0 0 22px rgba(91,231,196,.18) inset;
}
.brand__mark svg{width:22px;height:22px;}
.brand__text{display:flex;flex-direction:column;line-height:1.18;}
.brand__text strong{font-size:16px;font-weight:700;letter-spacing:.02em;}
.brand__text em{font-style:normal;font-size:11px;letter-spacing:.12em;color:var(--primary);}
.nav__links{display:flex;align-items:center;gap:26px;}
.nav__links a{
  position:relative;
  font-size:15px;
  color:var(--text-2);
  padding:6px 0;
  transition:color .2s var(--ease);
}
.nav__links a::after{
  content:"";
  position:absolute;left:50%;bottom:-2px;
  width:0;height:2px;border-radius:2px;
  transform:translateX(-50%);
  background:linear-gradient(90deg,var(--primary),#9BEF8A);
  transition:width .25s var(--ease);
}
.nav__links a:hover{color:var(--primary);}
.nav__links a:hover::after{width:60%;}
.nav__links a.is-active{color:var(--text);}
.nav__links a.is-active::after{width:100%;box-shadow:0 0 12px rgba(91,231,196,.7);}
.nav__links a.is-active::before{
  content:"";position:absolute;left:50%;bottom:6px;
  width:3px;height:3px;border-radius:50%;
  transform:translateX(-50%);
  background:var(--primary);
  box-shadow:0 0 8px rgba(91,231,196,.9);
}
.nav__actions{display:flex;align-items:center;gap:12px;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;
  border-radius:var(--radius-pill);
  border:1px solid transparent;
  font-size:15px;font-weight:600;
  cursor:pointer;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease),opacity .2s var(--ease);
}
.btn:active{transform:translateY(0);}
.btn--primary{
  background:linear-gradient(135deg,#5BE7C4,#9BEF8A);
  color:#04120E;
  box-shadow:0 10px 28px rgba(91,231,196,.28);
}
.btn--primary:hover{transform:translateY(-2px);box-shadow:0 16px 36px rgba(91,231,196,.4);filter:brightness(1.06);}
.btn--ghost{
  background:transparent;
  border-color:var(--line);
  color:var(--text-2);
}
.btn--ghost:hover{border-color:var(--line-strong);color:var(--primary);background:rgba(91,231,196,.06);transform:translateY(-2px);}
.btn--sm{height:40px;padding:0 18px;font-size:14px;}
.btn[disabled],.btn.is-disabled{opacity:.45;box-shadow:none;cursor:not-allowed;transform:none;}
.nav__burger{
  display:none;
  width:44px;height:44px;
  border-radius:12px;
  border:1px solid var(--line);
  background:rgba(17,28,49,.8);
  cursor:pointer;
  position:relative;
  padding:0;
}
.nav__burger span,
.nav__burger span::before,
.nav__burger span::after{
  content:"";
  position:absolute;left:50%;
  width:18px;height:2px;border-radius:2px;
  background:var(--text);
  transform:translateX(-50%);
  transition:transform .25s var(--ease),opacity .2s var(--ease);
}
.nav__burger span{top:50%;margin-top:-1px;}
.nav__burger span::before{top:-6px;}
.nav__burger span::after{top:6px;}
.nav__burger.is-open span{background:transparent;}
.nav__burger.is-open span::before{transform:translateX(-50%) rotate(45deg);top:0;}
.nav__burger.is-open span::after{transform:translateX(-50%) rotate(-45deg);top:0;}

/* ---------- 移动抽屉 ---------- */
.drawer-mask{
  position:fixed;inset:0;z-index:110;
  background:rgba(3,6,12,.7);
  opacity:0;pointer-events:none;
  transition:opacity .3s var(--ease);
}
.drawer-mask.is-open{opacity:1;pointer-events:auto;}
.drawer{
  position:fixed;top:0;right:0;bottom:0;z-index:120;
  width:320px;max-width:86vw;
  background:#0A1120;
  border-left:1px solid var(--line);
  padding:20px;
  display:flex;flex-direction:column;gap:8px;
  transform:translateX(100%);
  transition:transform .32s var(--ease);
  overflow-y:auto;
}
.drawer.is-open{transform:translateX(0);}
.drawer__head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-bottom:14px;border-bottom:1px solid var(--line);margin-bottom:8px;}
.drawer__close{
  width:40px;height:40px;border-radius:12px;
  border:1px solid var(--line);background:rgba(17,28,49,.9);
  color:var(--text-2);cursor:pointer;font-size:18px;line-height:1;
  transition:color .2s var(--ease),border-color .2s var(--ease);
}
.drawer__close:hover{color:var(--primary);border-color:var(--line-strong);}
.drawer__links{display:flex;flex-direction:column;}
.drawer__links a{
  display:flex;align-items:center;height:48px;
  font-size:15px;color:var(--text-2);
  border-bottom:1px solid rgba(255,255,255,.06);
  transition:color .2s var(--ease),padding-left .2s var(--ease);
}
.drawer__links a:hover,.drawer__links a.is-active{color:var(--primary);padding-left:6px;}
.drawer__cta{margin-top:auto;padding-top:18px;}
.drawer__cta .btn{width:100%;}

/* ---------- 首屏 ---------- */
.hero{position:relative;overflow:hidden;border-bottom:1px solid var(--line);}
.hero__bg{
  position:absolute;inset:0;
  background-image:
    linear-gradient(180deg,rgba(5,7,15,.88),rgba(5,7,15,.96)),
    url("/assets/images/backpic/back-2.webp");
  background-size:cover;
  background-position:center;
}
.hero__glow{
  position:absolute;inset:0;
  background:
    radial-gradient(620px 380px at 86% 6%,rgba(91,231,196,.20),transparent 66%),
    radial-gradient(520px 320px at 4% 92%,rgba(255,179,92,.10),transparent 66%);
  pointer-events:none;
}
.hero__grid{
  position:relative;
  display:grid;
  grid-template-columns:1.4fr .85fr;
  gap:44px;
  align-items:start;
  padding:44px 0 60px;
}
.crumb{
  display:flex;align-items:center;gap:8px;
  font-size:12px;color:var(--muted);
  margin-bottom:20px;
  overflow-x:auto;white-space:nowrap;
  scrollbar-width:none;
}
.crumb::-webkit-scrollbar{display:none;}
.crumb a{color:var(--muted);transition:color .2s var(--ease);}
.crumb a:hover{color:var(--primary);}
.crumb span.sep{color:rgba(255,255,255,.22);}
.crumb .current{color:var(--primary);}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:var(--radius-pill);
  border:1px solid var(--line-strong);
  background:rgba(91,231,196,.08);
  color:var(--primary);
  font-size:12px;letter-spacing:.08em;
  margin-bottom:18px;
}
.eyebrow i{width:6px;height:6px;border-radius:50%;background:var(--primary);box-shadow:0 0 10px rgba(91,231,196,.9);display:inline-block;}
.hero h1{
  font-size:clamp(30px,4.4vw,52px);
  line-height:1.16;
  font-weight:800;
  letter-spacing:.01em;
  margin-bottom:16px;
}
.hero h1 .hl{
  background:linear-gradient(120deg,#5BE7C4,#9BEF8A);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero__sub{
  max-width:36em;
  font-size:clamp(15px,1.5vw,17px);
  color:var(--text-2);
  line-height:1.85;
  margin-bottom:26px;
}
.hero__chips{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:28px;}
.chip{
  display:inline-flex;align-items:center;gap:7px;
  padding:8px 16px;border-radius:var(--radius-pill);
  border:1px solid var(--line);
  background:rgba(17,28,49,.6);
  color:var(--text-2);
  font-size:13px;
  transition:border-color .2s var(--ease),color .2s var(--ease),transform .2s var(--ease),background .2s var(--ease);
}
.chip:hover{color:var(--primary);border-color:var(--line-strong);background:rgba(91,231,196,.08);transform:translateY(-2px);}
.hero__cta{display:flex;flex-wrap:wrap;gap:14px;}
.hero-card{
  border-radius:var(--radius-lg);
  border:1px solid rgba(255,255,255,.14);
  background:linear-gradient(180deg,rgba(18,28,48,.78),rgba(10,16,30,.62));
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  box-shadow:var(--shadow);
  padding:24px;
}
.hero-card__title{
  display:flex;align-items:center;gap:10px;
  font-size:14px;color:var(--text-2);
  padding-bottom:14px;margin-bottom:6px;
  border-bottom:1px solid var(--line);
}
.hero-card__title svg{width:18px;height:18px;}
.hc-row{
  display:flex;align-items:center;justify-content:space-between;gap:14px;
  padding:14px 0;
  border-bottom:1px dashed rgba(255,255,255,.08);
}
.hc-row:last-of-type{border-bottom:none;}
.hc-row__label{font-size:14px;color:var(--text);}
.hc-row__meta{font-size:12px;color:var(--muted);font-variant-numeric:tabular-nums;text-align:right;}
.hc-row__dot{
  width:8px;height:8px;border-radius:50%;
  background:var(--primary);
  box-shadow:0 0 10px rgba(91,231,196,.85);
  flex-shrink:0;
}
.hero-card .btn{width:100%;margin-top:14px;}

/* ---------- 通用板块 ---------- */
.section{padding:88px 0;}
.section--tight{padding:64px 0;}
.section__head{max-width:720px;margin-bottom:40px;}
.section__kicker{
  display:inline-block;
  font-size:12px;letter-spacing:.14em;
  color:var(--primary);
  margin-bottom:12px;
}
.section__title{
  font-size:clamp(24px,3vw,36px);
  line-height:1.24;
  font-weight:800;
  letter-spacing:.01em;
  margin-bottom:14px;
}
.section__desc{color:var(--muted);font-size:15px;line-height:1.85;max-width:60ch;}

/* ---------- 设备矩阵 ---------- */
.device-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:24px;
}
.device-card{
  position:relative;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  padding:26px;
  box-shadow:var(--shadow);
  transition:transform .25s var(--ease),border-color .25s var(--ease),box-shadow .25s var(--ease),background .25s var(--ease);
}
.device-card:hover{
  transform:translateY(-4px);
  border-color:var(--line-strong);
  box-shadow:var(--shadow-hover);
  background:var(--surface-2);
}
.device-card__top{display:flex;align-items:center;gap:14px;margin-bottom:16px;}
.device-card__icon{
  width:46px;height:46px;border-radius:14px;
  display:grid;place-items:center;
  background:linear-gradient(150deg,rgba(91,231,196,.18),rgba(31,168,143,.06));
  border:1px solid var(--line-strong);
  flex-shrink:0;
}
.device-card__icon svg{width:22px;height:22px;}
.device-card h3{font-size:19px;font-weight:700;line-height:1.4;}
.device-card h3 small{display:block;font-size:12px;font-weight:400;color:var(--muted);letter-spacing:.06em;margin-top:2px;}
.device-card p{font-size:14.5px;color:var(--text-2);line-height:1.85;}
.device-card__tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px;}
.tag{
  font-size:12px;
  padding:4px 12px;
  border-radius:var(--radius-pill);
  border:1px solid var(--line);
  color:var(--muted);
  background:rgba(255,255,255,.02);
}
.tag--ok{color:var(--primary);border-color:rgba(91,231,196,.32);background:rgba(91,231,196,.07);}
.tag--warn{color:var(--accent);border-color:rgba(255,179,92,.32);background:rgba(255,179,92,.07);}

/* ---------- 适配步骤 ---------- */
.steps{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:24px;
  counter-reset:step;
}
.step{
  position:relative;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  padding:28px 24px 26px;
  box-shadow:var(--shadow);
  transition:transform .25s var(--ease),border-color .25s var(--ease),box-shadow .25s var(--ease);
}
.step:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--shadow-hover);}
.step__num{
  display:inline-flex;align-items:center;justify-content:center;
  width:42px;height:42px;border-radius:12px;
  font-size:15px;font-weight:800;
  font-variant-numeric:tabular-nums;
  color:var(--primary);
  background:rgba(91,231,196,.10);
  border:1px solid var(--line-strong);
  margin-bottom:16px;
}
.step h3{font-size:18px;font-weight:700;margin-bottom:10px;}
.step p{font-size:14.5px;color:var(--text-2);line-height:1.85;}
.step::after{
  content:"";
  position:absolute;right:-13px;top:46px;
  width:14px;height:1px;
  background:linear-gradient(90deg,var(--line-strong),transparent);
}
.step:last-child::after{display:none;}

/* ---------- 界面示意 ---------- */
.shot-grid{
  display:grid;
  grid-template-columns:1.15fr .85fr;
  gap:24px;
}
.shot{
  position:relative;
  border-radius:var(--radius-lg);
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--shadow);
  background:var(--bg-2);
}
.shot img{
  width:100%;height:100%;
  object-fit:cover;
  transition:transform .5s var(--ease);
}
.shot:hover img{transform:scale(1.04);}
.shot--tall{min-height:340px;}
.shot--tall img{min-height:340px;}
.shot__cap{
  position:absolute;left:0;right:0;bottom:0;
  padding:36px 20px 16px;
  font-size:13px;
  color:var(--text);
  background:linear-gradient(180deg,rgba(5,7,15,0),rgba(5,7,15,.92));
}
.shot__cap span{display:block;font-size:12px;color:var(--muted);margin-top:2px;}

/* ---------- 自检清单 ---------- */
.checklist{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow);
  overflow:hidden;
}
.check-row{
  display:flex;align-items:flex-start;gap:16px;
  padding:20px 26px;
  border-bottom:1px solid rgba(255,255,255,.07);
  transition:background .2s var(--ease);
}
.check-row:last-child{border-bottom:none;}
.check-row:hover{background:rgba(91,231,196,.04);}
.check-row__icon{
  width:26px;height:26px;border-radius:50%;
  display:grid;place-items:center;
  flex-shrink:0;margin-top:3px;
  background:rgba(91,231,196,.12);
  border:1px solid rgba(91,231,196,.36);
}
.check-row__icon svg{width:13px;height:13px;}
.check-row h4{font-size:15.5px;font-weight:600;margin-bottom:4px;}
.check-row p{font-size:14px;color:var(--muted);line-height:1.8;}

/* ---------- FAQ ---------- */
.faq-wrap{
  display:grid;
  grid-template-columns:4fr 8fr;
  gap:48px;
  align-items:start;
}
.faq-side{position:sticky;top:104px;}
.faq-side h2{
  font-size:clamp(24px,3vw,34px);
  line-height:1.26;font-weight:800;margin-bottom:14px;
}
.faq-side p{font-size:15px;color:var(--muted);line-height:1.85;margin-bottom:20px;}
.faq-side .btn{width:100%;max-width:240px;}
.faq{display:flex;flex-direction:column;}
.faq__item{border-bottom:1px solid var(--line);}
.faq__item:first-child{border-top:1px solid var(--line);}
.faq__q{
  width:100%;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:60px;
  padding:14px 4px 14px 0;
  background:transparent;border:none;
  text-align:left;
  font-size:16px;font-weight:600;color:var(--text);
  cursor:pointer;
  transition:color .2s var(--ease),padding-left .2s var(--ease);
}
.faq__q:hover{color:var(--primary);}
.faq__sign{
  position:relative;
  width:22px;height:22px;flex-shrink:0;
  transition:transform .28s var(--ease);
}
.faq__sign::before,.faq__sign::after{
  content:"";position:absolute;left:50%;top:50%;
  background:var(--primary);border-radius:2px;
  transform:translate(-50%,-50%);
}
.faq__sign::before{width:13px;height:2px;}
.faq__sign::after{width:2px;height:13px;}
.faq__item.is-open .faq__sign{transform:rotate(135deg);}
.faq__a{
  max-height:0;overflow:hidden;
  transition:max-height .32s var(--ease);
}
.faq__item.is-open .faq__q{color:var(--primary);padding-left:14px;}
.faq__item.is-open{background:rgba(91,231,196,.04);border-left:2px solid var(--primary);}
.faq__a p{
  max-width:68ch;
  padding:0 4px 20px 14px;
  font-size:15px;line-height:1.85;color:var(--text-2);
}

/* ---------- CTA ---------- */
.cta-panel{
  position:relative;
  overflow:hidden;
  border-radius:var(--radius-lg);
  border:1px solid rgba(91,231,196,.28);
  background:linear-gradient(120deg,rgba(18,28,48,.92),rgba(10,16,30,.92));
  box-shadow:var(--shadow);
  padding:40px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
}
.cta-panel::before{
  content:"";
  position:absolute;inset:0;
  background-image:
    linear-gradient(90deg,rgba(5,7,15,.86),rgba(5,7,15,.72)),
    url("/assets/images/backpic/back-1.png");
  background-size:cover;background-position:center;
  filter:blur(2px);
  opacity:.5;
  z-index:0;
}
.cta-panel__inner{position:relative;z-index:1;max-width:640px;}
.cta-panel h2{font-size:clamp(22px,2.6vw,32px);line-height:1.28;font-weight:800;margin-bottom:12px;}
.cta-panel p{font-size:15px;color:var(--text-2);line-height:1.85;}
.cta-panel__actions{position:relative;z-index:1;display:flex;flex-wrap:wrap;gap:14px;flex-shrink:0;}

/* ---------- 交叉链接 ---------- */
.cross{margin-top:16px;}
.cross h3{font-size:16px;font-weight:600;color:var(--text-2);margin-bottom:16px;}
.cross__links{display:flex;flex-wrap:wrap;gap:12px;}
.cross__links a{
  display:inline-flex;align-items:center;gap:8px;
  padding:11px 20px;
  border-radius:var(--radius-pill);
  border:1px solid var(--line);
  background:rgba(17,28,49,.62);
  color:var(--text-2);
  font-size:14px;
  transition:transform .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease),background .2s var(--ease);
}
.cross__links a::after{content:"→";font-size:13px;opacity:.6;transition:transform .2s var(--ease);}
.cross__links a:hover{
  transform:translateY(-3px);
  color:var(--primary);
  border-color:var(--line-strong);
  background:rgba(91,231,196,.08);
}
.cross__links a:hover::after{transform:translateX(3px);}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:40px;
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(8,13,26,.6),rgba(5,7,15,.96));
  padding:64px 0 28px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:40px;
  padding-bottom:40px;
  border-bottom:1px solid var(--line);
}
.footer-brand p{font-size:14px;color:var(--muted);line-height:1.85;margin-top:16px;max-width:34ch;}
.footer-col h4{font-size:14px;font-weight:700;color:var(--text);margin-bottom:16px;letter-spacing:.02em;}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col a{font-size:14px;color:var(--muted);transition:color .2s var(--ease),padding-left .2s var(--ease);}
.footer-col a:hover{color:var(--primary);padding-left:4px;}
.footer-col p{font-size:13.5px;color:var(--muted);line-height:1.9;}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding-top:24px;
  font-size:12.5px;color:var(--muted);
  flex-wrap:wrap;
}
.footer-bottom .sep{margin:0 8px;opacity:.5;}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .container{padding:0 20px;}
  .nav__links{gap:20px;}
  .hero__grid{gap:32px;}
  .faq-wrap{gap:36px;}
}
@media (max-width:991px){
  .topbar__mid{display:none;}
  .nav__links{display:none;}
  .nav__burger{display:block;}
  .nav__actions .btn--primary{display:none;}
  .hero__grid{grid-template-columns:1fr;padding:32px 0 48px;}
  .hero-card{max-width:520px;}
  .steps{grid-template-columns:1fr;gap:16px;}
  .step::after{display:none;}
  .shot-grid{grid-template-columns:1fr;}
  .shot--tall,.shot--tall img{min-height:260px;}
  .faq-wrap{grid-template-columns:1fr;gap:28px;}
  .faq-side{position:static;}
  .faq-side .btn{max-width:none;width:auto;}
  .cta-panel{flex-direction:column;align-items:flex-start;padding:32px;}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px;}
  .section{padding:64px 0;}
}
@media (max-width:767px){
  .device-grid{grid-template-columns:1fr;}
  .section__head{margin-bottom:28px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:10px;}
}
@media (max-width:575px){
  body{font-size:15.5px;line-height:1.85;}
  .topbar{height:34px;}
  .topbar__right .pill{display:none;}
  .container{padding:0 16px;}
  .nav{height:64px;}
  .brand__mark{width:36px;height:36px;}
  .brand__text strong{font-size:15px;}
  .brand__text em{font-size:10px;letter-spacing:.08em;}
  .hero h1{font-size:clamp(26px,7vw,34px);}
  .hero__cta{flex-direction:column;align-items:stretch;}
  .hero__cta .btn{width:100%;}
  .hero-card{padding:20px;}
  .device-card,.step{padding:22px 20px;}
  .check-row{padding:18px 18px;}
  .cta-panel{padding:26px 20px;}
  .cta-panel__actions{flex-direction:column;width:100%;}
  .cta-panel__actions .btn{width:100%;}
  .section{padding:52px 0;}
  .section--tight{padding:44px 0;}
  .faq__q{font-size:15px;min-height:56px;}
  .faq__a p{font-size:14.5px;}
  .cross__links a{width:100%;justify-content:space-between;}
  .footer-grid{gap:28px;}
  .site-footer{padding:48px 0 24px;}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  *,*::before,*::after{
    transition-duration:.001ms !important;
    animation-duration:.001ms !important;
  }
  .device-card:hover,.step:hover,.cross__links a:hover,.btn:hover{transform:none;}
  .shot:hover img{transform:none;}
}

/* roulang page: category2 */
:root{
  --bg-0:#05070F;
  --bg-1:#080D1A;
  --bg-2:#0D1526;
  --surface:#111C31;
  --surface-2:#16233B;
  --line:rgba(255,255,255,.10);
  --line-strong:rgba(91,231,196,.28);
  --text:#F4F8FF;
  --text-2:#B9C6DA;
  --muted:#8494AC;
  --primary:#5BE7C4;
  --primary-deep:#1FA88F;
  --accent:#FFB35C;
  --success:#5BE7C4;
  --warning:#FFB35C;
  --danger:#FF6B6B;
  --radius-lg:20px;
  --radius-md:16px;
  --radius-sm:12px;
  --shadow:0 18px 50px rgba(0,0,0,.28);
  --shadow-soft:0 10px 28px rgba(0,0,0,.22);
  --container:1200px;
  --font:"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg-0);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:0;
  pointer-events:none;
  background:
    radial-gradient(680px 420px at 88% -6%,rgba(91,231,196,.13),transparent 70%),
    radial-gradient(620px 460px at 4% 96%,rgba(255,179,92,.08),transparent 72%);
}
body::after{
  content:"";
  position:fixed;
  inset:0;
  z-index:0;
  pointer-events:none;
  background-image:radial-gradient(rgba(255,255,255,.075) 1px,transparent 1px);
  background-size:36px 36px;
  opacity:.45;
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.85),transparent 62%);
  mask-image:linear-gradient(180deg,rgba(0,0,0,.85),transparent 62%);
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color .2s ease,border-color .2s ease,background .2s ease}
h1,h2,h3,h4{margin:0;line-height:1.25;letter-spacing:.01em}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
input{font:inherit}
svg{display:block}
::selection{background:rgba(91,231,196,.28);color:#fff}
:focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:6px}

.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 24px;
  position:relative;
  z-index:1;
}

/* ---------- 顶部信息条 ---------- */
.topbar{
  background:#04060C;
  border-bottom:1px solid var(--line);
  font-size:12px;
  color:var(--muted);
  position:relative;
  z-index:70;
}
.topbar__inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  height:38px;
}
.topbar__domain{color:var(--text-2);letter-spacing:.02em}
.topbar__mid{display:flex;align-items:center;gap:10px;color:var(--muted)}
.topbar__mid .dot{color:rgba(255,255,255,.18)}
.topbar__right{display:flex;align-items:center;gap:14px}
.topbar__link{color:var(--text-2)}
.topbar__link:hover{color:var(--primary)}
.topbar__pill{
  display:inline-flex;
  align-items:center;
  height:24px;
  padding:0 12px;
  border-radius:999px;
  border:1px solid rgba(255,179,92,.35);
  color:var(--accent);
  background:rgba(255,179,92,.08);
  font-size:12px;
  transition:background .2s ease,border-color .2s ease,transform .2s ease;
}
.topbar__pill:hover{background:rgba(255,179,92,.16);border-color:rgba(255,179,92,.6);transform:translateY(-1px)}

/* ---------- 主导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(6,10,20,.86);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-bottom:1px solid transparent;
  transition:background .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.site-header.is-scrolled{
  background:rgba(5,8,16,.95);
  border-bottom-color:var(--line);
  box-shadow:0 12px 32px rgba(0,0,0,.36);
}
.nav{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  height:72px;
}
.brand{display:inline-flex;align-items:center;gap:12px;flex-shrink:0}
.brand__mark{
  width:38px;height:38px;
  display:grid;place-items:center;
  border-radius:12px;
  border:1px solid rgba(91,231,196,.34);
  background:linear-gradient(180deg,rgba(91,231,196,.16),rgba(91,231,196,.03));
  box-shadow:inset 0 1px 0 rgba(255,255,255,.12),0 0 20px rgba(91,231,196,.16);
  transition:transform .25s ease,box-shadow .25s ease;
}
.brand__mark svg{width:22px;height:22px}
.brand:hover .brand__mark{transform:translateY(-2px);box-shadow:inset 0 1px 0 rgba(255,255,255,.14),0 0 26px rgba(91,231,196,.32)}
.brand__text{display:flex;flex-direction:column;line-height:1.2}
.brand__text strong{font-size:15px;font-weight:800;letter-spacing:.02em;color:var(--text)}
.brand__text em{font-style:normal;font-size:11px;color:var(--muted);letter-spacing:.14em}
.nav__links{display:flex;align-items:center;gap:2px;flex-wrap:nowrap}
.nav__links a{
  position:relative;
  padding:9px 12px;
  font-size:15px;
  color:var(--text-2);
  border-radius:999px;
  white-space:nowrap;
  transition:color .2s ease,background .2s ease;
}
.nav__links a:hover{color:var(--primary);background:rgba(91,231,196,.08)}
.nav__links a.is-active{color:var(--primary);background:rgba(91,231,196,.06)}
.nav__links a.is-active::after{
  content:"";
  position:absolute;
  left:12px;right:12px;bottom:1px;
  height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--primary),#9BEF8A);
  box-shadow:0 0 10px rgba(91,231,196,.7);
}
.nav__actions{display:flex;align-items:center;gap:12px}
.nav__burger{
  display:none;
  width:44px;height:44px;
  border-radius:12px;
  border:1px solid var(--line);
  align-items:center;
  justify-content:center;
  position:relative;
}
.nav__burger span,
.nav__burger::before,
.nav__burger::after{
  content:"";
  position:absolute;
  left:50%;transform:translateX(-50%);
  width:18px;height:2px;border-radius:2px;
  background:var(--text);
  transition:transform .25s ease,opacity .25s ease,background .25s ease;
}
.nav__burger span{top:50%;margin-top:-1px}
.nav__burger::before{top:14px}
.nav__burger::after{bottom:14px}
.nav__burger:hover span,.nav__burger:hover::before,.nav__burger:hover::after{background:var(--primary)}
.nav__burger.is-open span{opacity:0}
.nav__burger.is-open::before{transform:translateX(-50%) translateY(7px) rotate(45deg)}
.nav__burger.is-open::after{transform:translateX(-50%) translateY(-7px) rotate(-45deg)}

/* ---------- 按钮体系 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 24px;
  border-radius:999px;
  font-size:15px;
  font-weight:700;
  letter-spacing:.02em;
  border:1px solid transparent;
  cursor:pointer;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease,opacity .2s ease;
}
.btn--primary{
  background:linear-gradient(135deg,#5BE7C4,#9BEF8A);
  color:#04120E;
  box-shadow:0 12px 28px rgba(91,231,196,.28);
}
.btn--primary:hover{transform:translateY(-2px);box-shadow:0 16px 36px rgba(91,231,196,.42);filter:brightness(1.05)}
.btn--primary:active{transform:translateY(0);box-shadow:0 8px 18px rgba(91,231,196,.28)}
.btn--ghost{
  background:rgba(255,255,255,.02);
  border-color:var(--line);
  color:var(--text-2);
}
.btn--ghost:hover{color:var(--primary);border-color:var(--line-strong);background:rgba(91,231,196,.08);transform:translateY(-2px)}
.btn--ghost:active{transform:translateY(0)}
.btn--sm{height:40px;padding:0 18px;font-size:14px}
.btn[disabled],.btn.is-disabled{opacity:.45;box-shadow:none;cursor:not-allowed;transform:none}
.btn__arrow{width:16px;height:16px}

/* ---------- 面包屑 ---------- */
.breadcrumb{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:12px;
  color:var(--muted);
  padding:20px 0 0;
  flex-wrap:wrap;
}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb .sep{color:rgba(255,255,255,.2)}
.breadcrumb .current{color:var(--primary)}

/* ---------- Hero ---------- */
.page-hero{
  position:relative;
  overflow:hidden;
  border-bottom:1px solid var(--line);
  padding:8px 0 44px;
}
.page-hero__bg{
  position:absolute;
  inset:0;
  background-image:linear-gradient(180deg,rgba(5,7,15,.82),rgba(5,7,15,.96)),url("/assets/images/backpic/back-1.png");
  background-size:cover;
  background-position:center;
  opacity:.75;
  z-index:0;
}
.hero-grid{
  display:grid;
  grid-template-columns:1.06fr .94fr;
  gap:48px;
  align-items:center;
  padding-top:32px;
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:28px;
  padding:0 14px;
  border-radius:999px;
  border:1px solid var(--line-strong);
  background:rgba(91,231,196,.08);
  color:var(--primary);
  font-size:12px;
  letter-spacing:.08em;
  margin-bottom:18px;
}
.eyebrow .dot-live{
  width:6px;height:6px;border-radius:50%;
  background:var(--primary);
  box-shadow:0 0 8px rgba(91,231,196,.9);
}
.hero-copy h1{
  font-size:clamp(34px,4.6vw,54px);
  font-weight:800;
  line-height:1.14;
  letter-spacing:.01em;
  margin-bottom:16px;
}
.hero-sub{
  font-size:17px;
  color:var(--text-2);
  max-width:34ch;
  margin-bottom:26px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:26px}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px}
.hero-tags li{
  display:inline-flex;
  align-items:center;
  gap:6px;
  height:28px;
  padding:0 12px;
  border-radius:999px;
  border:1px solid var(--line);
  background:rgba(255,255,255,.03);
  font-size:12px;
  color:var(--text-2);
}
.hero-tags li::before{
  content:"";
  width:5px;height:5px;border-radius:50%;
  background:var(--primary);
  box-shadow:0 0 6px rgba(91,231,196,.8);
}
.hero-media{
  position:relative;
  border-radius:var(--radius-lg);
  border:1px solid var(--line);
  background:var(--surface);
  overflow:hidden;
  box-shadow:var(--shadow);
}
.hero-media img{
  width:100%;
  aspect-ratio:16/11;
  object-fit:cover;
  transition:transform .5s ease;
}
.hero-media:hover img{transform:scale(1.03)}
.hero-media::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,rgba(5,7,15,0) 40%,rgba(5,7,15,.72));
  pointer-events:none;
}
.hero-stats{
  position:relative;
  z-index:2;
  display:grid;
  grid-template-columns:repeat(3,1fr);
  border-top:1px solid var(--line);
  background:rgba(8,13,26,.94);
}
.hero-stats div{
  padding:14px 12px;
  text-align:center;
  border-right:1px solid var(--line);
}
.hero-stats div:last-child{border-right:0}
.hero-stats b{
  display:block;
  font-size:20px;
  font-weight:800;
  color:var(--primary);
  font-variant-numeric:tabular-nums;
  line-height:1.2;
}
.hero-stats span{font-size:12px;color:var(--muted)}

/* ---------- 锚点胶囊 ---------- */
.anchor-bar{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:34px;
  padding-top:22px;
  border-top:1px solid var(--line);
}
.chip{
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:34px;
  padding:0 16px;
  border-radius:999px;
  border:1px solid var(--line);
  background:rgba(255,255,255,.02);
  color:var(--text-2);
  font-size:13px;
  transition:color .2s ease,border-color .2s ease,background .2s ease,transform .2s ease;
}
.chip:hover{color:var(--primary);border-color:var(--line-strong);background:rgba(91,231,196,.08);transform:translateY(-2px)}
.chip .chip__num{font-size:11px;color:var(--muted);font-variant-numeric:tabular-nums}

/* ---------- 板块通用 ---------- */
.section{padding:88px 0;position:relative}
.section--tight{padding:64px 0}
.section--alt{background:linear-gradient(180deg,rgba(13,21,38,.72),rgba(5,7,15,0));border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:760px;margin-bottom:40px}
.section-head h2{
  font-size:clamp(26px,3.2vw,38px);
  font-weight:800;
  margin-bottom:14px;
}
.section-head p{color:var(--text-2);font-size:16px;max-width:64ch}
.section-kicker{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:12px;
  letter-spacing:.16em;
  color:var(--primary);
  margin-bottom:14px;
}
.section-kicker::before{
  content:"";
  width:22px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--primary),transparent);
}

/* ---------- 安全核对清单 ---------- */
.check-grid{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:20px;
}
.check-card{
  display:flex;
  gap:16px;
  padding:22px;
  border-radius:var(--radius-md);
  background:var(--surface);
  border:1px solid var(--line);
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease,background .25s ease;
}
.check-card:hover{
  transform:translateY(-4px);
  border-color:var(--line-strong);
  background:var(--surface-2);
  box-shadow:var(--shadow-soft);
}
.check-card:focus-within{border-color:var(--line-strong);box-shadow:0 0 0 3px rgba(91,231,196,.14)}
.check-card__icon{
  flex:0 0 38px;
  width:38px;height:38px;
  display:grid;place-items:center;
  border-radius:11px;
  border:1px solid rgba(91,231,196,.34);
  background:rgba(91,231,196,.12);
  color:var(--primary);
}
.check-card__icon svg{width:18px;height:18px}
.check-card h3{font-size:17px;font-weight:700;margin-bottom:6px}
.check-card p{font-size:14.5px;color:var(--text-2);line-height:1.75}
.check-card__tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}
.tag{
  display:inline-flex;
  align-items:center;
  height:24px;
  padding:0 10px;
  border-radius:999px;
  border:1px solid var(--line);
  font-size:12px;
  color:var(--muted);
  background:rgba(255,255,255,.02);
}
.tag--primary{color:var(--primary);border-color:var(--line-strong);background:rgba(91,231,196,.08)}
.tag--accent{color:var(--accent);border-color:rgba(255,179,92,.34);background:rgba(255,179,92,.08)}

/* ---------- 异常情况列表 ---------- */
.issue-list{display:grid;gap:14px}
.issue{
  display:grid;
  grid-template-columns:220px 1fr 24px;
  align-items:center;
  gap:22px;
  padding:20px 24px;
  border-radius:var(--radius-md);
  background:var(--surface);
  border:1px solid var(--line);
  transition:transform .25s ease,border-color .25s ease,background .25s ease,box-shadow .25s ease;
}
.issue:hover{
  transform:translateX(4px);
  border-color:var(--line-strong);
  background:var(--surface-2);
  box-shadow:var(--shadow-soft);
}
.issue__title{font-size:16px;font-weight:700;line-height:1.5}
.issue__title small{display:block;font-size:12px;font-weight:400;color:var(--muted);margin-top:4px;letter-spacing:.04em}
.issue__body{font-size:14.5px;color:var(--text-2);line-height:1.75}
.issue__arrow{color:var(--muted);transition:color .2s ease,transform .2s ease}
.issue:hover .issue__arrow{color:var(--primary);transform:translateX(3px)}
.issue__arrow svg{width:18px;height:18px}

/* ---------- 警示 callout ---------- */
.callout{
  display:flex;
  gap:18px;
  align-items:flex-start;
  margin-top:26px;
  padding:24px;
  border-radius:var(--radius-md);
  border:1px solid rgba(255,179,92,.34);
  background:linear-gradient(180deg,rgba(255,179,92,.13),rgba(255,179,92,.04));
}
.callout__icon{
  flex:0 0 40px;
  width:40px;height:40px;
  display:grid;place-items:center;
  border-radius:12px;
  background:rgba(255,179,92,.16);
  border:1px solid rgba(255,179,92,.42);
  color:var(--accent);
}
.callout__icon svg{width:20px;height:20px}
.callout h3{font-size:16px;font-weight:700;color:#FFE0B8;margin-bottom:6px}
.callout p{font-size:14.5px;color:rgba(255,224,184,.86);line-height:1.78}

/* ---------- 做法对照 ---------- */
.compare-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px}
.compare-card{
  border-radius:var(--radius-md);
  border:1px solid var(--line);
  background:var(--surface);
  padding:26px;
}
.compare-card--warn{border-color:rgba(255,107,107,.26);background:linear-gradient(180deg,rgba(255,107,107,.07),rgba(17,28,49,.9))}
.compare-card--good{border-color:rgba(91,231,196,.3);background:linear-gradient(180deg,rgba(91,231,196,.07),rgba(17,28,49,.9))}
.compare-card h3{display:flex;align-items:center;gap:10px;font-size:17px;margin-bottom:18px}
.compare-card h3 .badge{
  display:inline-flex;align-items:center;justify-content:center;
  width:24px;height:24px;border-radius:8px;font-size:13px;
}
.compare-card--warn h3 .badge{background:rgba(255,107,107,.16);color:var(--danger)}
.compare-card--good h3 .badge{background:rgba(91,231,196,.16);color:var(--primary)}
.compare-list li{
  display:flex;
  gap:12px;
  padding:12px 0;
  font-size:14.5px;
  color:var(--text-2);
  line-height:1.7;
  border-bottom:1px dashed rgba(255,255,255,.08);
}
.compare-list li:last-child{border-bottom:0;padding-bottom:0}
.compare-list li:first-child{padding-top:0}
.compare-list svg{width:16px;height:16px;flex:0 0 16px;margin-top:6px}
.compare-card--warn .compare-list svg{color:var(--danger)}
.compare-card--good .compare-list svg{color:var(--primary)}

/* ---------- 图片叙事条 ---------- */
.media-strip{
  display:grid;
  grid-template-columns:1.15fr .85fr;
  gap:24px;
  align-items:stretch;
}
.media-figure{
  margin:0;
  position:relative;
  border-radius:var(--radius-lg);
  overflow:hidden;
  border:1px solid var(--line);
  background:var(--surface);
  min-height:280px;
}
.media-figure img{
  width:100%;height:100%;
  min-height:280px;
  object-fit:cover;
  transition:transform .6s ease;
}
.media-figure:hover img{transform:scale(1.04)}
.media-figure figcaption{
  position:absolute;
  left:0;right:0;bottom:0;
  padding:40px 20px 18px;
  font-size:13px;
  color:var(--text-2);
  background:linear-gradient(180deg,transparent,rgba(5,7,15,.88));
}
.media-note{
  border-radius:var(--radius-lg);
  border:1px solid var(--line);
  background:var(--surface);
  padding:28px;
  display:flex;
  flex-direction:column;
  justify-content:center;
  gap:14px;
}
.media-note h3{font-size:20px}
.media-note p{font-size:14.5px;color:var(--text-2);line-height:1.8}
.media-note .tag{align-self:flex-start}

/* ---------- FAQ ---------- */
.faq{display:grid;gap:12px;max-width:100%}
.faq__item{
  border:1px solid var(--line);
  border-radius:14px;
  background:var(--surface);
  overflow:hidden;
  transition:border-color .25s ease,background .25s ease;
}
.faq__item:hover{border-color:rgba(255,255,255,.18)}
.faq__item.is-open{
  border-color:var(--line-strong);
  background:rgba(91,231,196,.04);
  box-shadow:inset 2px 0 0 0 var(--primary);
}
.faq__q{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  width:100%;
  min-height:56px;
  padding:14px 22px;
  text-align:left;
  font-size:16px;
  font-weight:700;
  color:var(--text);
  transition:color .2s ease;
}
.faq__q:hover{color:var(--primary)}
.faq__plus{
  position:relative;
  flex:0 0 22px;
  width:22px;height:22px;
  border-radius:50%;
  border:1px solid var(--line-strong);
  transition:transform .3s ease,background .25s ease;
}
.faq__plus::before,
.faq__plus::after{
  content:"";
  position:absolute;
  top:50%;left:50%;
  width:9px;height:1.6px;
  border-radius:2px;
  background:var(--primary);
  transform:translate(-50%,-50%);
  transition:transform .3s ease;
}
.faq__plus::after{transform:translate(-50%,-50%) rotate(90deg)}
.faq__item.is-open .faq__plus{transform:rotate(45deg);background:rgba(91,231,196,.14)}
.faq__item.is-open .faq__plus::after{transform:translate(-50%,-50%) rotate(0deg)}
.faq__a{
  display:none;
  padding:0 22px 20px;
  font-size:15px;
  line-height:1.85;
  color:var(--text-2);
  max-width:68ch;
}
.faq__item.is-open .faq__a{display:block}

/* ---------- 跨分类 ---------- */
.cross-box{
  border-radius:var(--radius-lg);
  border:1px solid var(--line);
  background:var(--surface);
  padding:28px;
}
.cross-box h3{font-size:18px;margin-bottom:8px}
.cross-box p{font-size:14px;color:var(--muted);margin-bottom:18px}
.cross{display:flex;flex-wrap:wrap;gap:12px}
.cross a{
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:38px;
  padding:0 18px;
  border-radius:999px;
  border:1px solid var(--line);
  font-size:14px;
  color:var(--text-2);
  background:rgba(255,255,255,.02);
  transition:color .2s ease,border-color .2s ease,background .2s ease,transform .2s ease;
}
.cross a:hover{color:var(--primary);border-color:var(--line-strong);background:rgba(91,231,196,.08);transform:translateY(-2px)}
.cross a svg{width:14px;height:14px;color:var(--muted)}
.cross a:hover svg{color:var(--primary)}

/* ---------- CTA 面板 ---------- */
.cta-panel{
  position:relative;
  overflow:hidden;
  border-radius:24px;
  border:1px solid var(--line-strong);
  background:linear-gradient(180deg,rgba(18,28,48,.92),rgba(10,16,30,.82));
  padding:44px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:34px;
  box-shadow:var(--shadow);
}
.cta-panel::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:linear-gradient(120deg,rgba(5,7,15,.9),rgba(5,7,15,.62)),url("/assets/images/backpic/back-3.webp");
  background-size:cover;
  background-position:center;
  opacity:.5;
  z-index:0;
}
.cta-panel::after{
  content:"";
  position:absolute;
  right:-80px;top:-90px;
  width:320px;height:320px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(91,231,196,.22),transparent 68%);
  z-index:0;
}
.cta-panel__copy{position:relative;z-index:1;max-width:56ch}
.cta-panel__copy h2{font-size:clamp(24px,3vw,34px);margin-bottom:12px}
.cta-panel__copy p{font-size:15px;color:var(--text-2)}
.cta-panel__actions{position:relative;z-index:1;display:flex;flex-wrap:wrap;gap:12px}

/* ---------- 页脚 ---------- */
.site-footer{
  position:relative;
  z-index:1;
  background:#04060C;
  border-top:1px solid var(--line);
  padding:60px 0 0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.25fr;
  gap:36px;
  padding-bottom:44px;
}
.footer-brand .brand{margin-bottom:16px}
.footer-brand p{font-size:14px;color:var(--muted);line-height:1.85;max-width:36ch}
.footer-col h4{font-size:14px;font-weight:700;letter-spacing:.06em;color:var(--text);margin-bottom:16px}
.footer-col ul{display:grid;gap:10px}
.footer-col ul a{font-size:14px;color:var(--muted)}
.footer-col ul a:hover{color:var(--primary)}
.footer-col p{font-size:13.5px;color:var(--muted);line-height:1.85}
.footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  padding:20px 0 26px;
  border-top:1px solid var(--line);
  font-size:12.5px;
  color:var(--muted);
}
.footer-bottom .sep{margin:0 8px;color:rgba(255,255,255,.2)}

/* ---------- 移动抽屉 ---------- */
.drawer-mask{
  position:fixed;
  inset:0;
  background:rgba(3,5,10,.72);
  -webkit-backdrop-filter:blur(3px);
  backdrop-filter:blur(3px);
  opacity:0;
  visibility:hidden;
  transition:opacity .3s ease,visibility .3s ease;
  z-index:110;
}
.drawer-mask.is-open{opacity:1;visibility:visible}
.drawer{
  position:fixed;
  top:0;right:0;bottom:0;
  width:min(344px,86vw);
  background:#070C18;
  border-left:1px solid var(--line);
  z-index:120;
  transform:translateX(102%);
  transition:transform .34s cubic-bezier(.4,0,.2,1);
  display:flex;
  flex-direction:column;
  padding:18px 18px 22px;
  overflow-y:auto;
}
.drawer.is-open{transform:translateX(0)}
.drawer__head{display:flex;align-items:center;justify-content:space-between;padding-bottom:16px;border-bottom:1px solid var(--line)}
.drawer__close{
  width:40px;height:40px;
  border-radius:12px;
  border:1px solid var(--line);
  display:grid;place-items:center;
  color:var(--text-2);
  transition:color .2s ease,border-color .2s ease;
}
.drawer__close:hover{color:var(--primary);border-color:var(--line-strong)}
.drawer__close svg{width:16px;height:16px}
.drawer__nav{display:grid;gap:4px;margin-top:16px}
.drawer__nav a{
  display:flex;
  align-items:center;
  min-height:48px;
  padding:0 14px;
  border-radius:12px;
  font-size:15px;
  color:var(--text-2);
  border:1px solid transparent;
  transition:color .2s ease,background .2s ease,border-color .2s ease;
}
.drawer__nav a:hover{color:var(--primary);background:rgba(91,231,196,.08)}
.drawer__nav a.is-active{color:var(--primary);background:rgba(91,231,196,.1);border-color:var(--line-strong)}
.drawer__foot{margin-top:auto;padding-top:22px;border-top:1px solid var(--line);display:grid;gap:12px}
.drawer__foot .btn{width:100%}
.drawer__tip{font-size:12px;color:var(--muted);line-height:1.7}

body.is-locked{overflow:hidden}
[id]{scroll-margin-top:96px}

/* ---------- 断点 ---------- */
@media (max-width:1199px){
  .container{padding:0 20px}
  .nav__links a{padding:9px 9px;font-size:14px}
  .hero-grid{gap:34px}
}
@media (max-width:991px){
  .topbar__mid{display:none}
  .nav{height:64px}
  .nav__links{display:none}
  .nav__burger{display:flex}
  .nav__actions .btn--primary{display:none}
  .hero-grid{grid-template-columns:1fr;gap:34px;padding-top:24px}
  .hero-sub{max-width:100%}
  .page-hero{padding-bottom:36px}
  .section{padding:64px 0}
  .section--tight{padding:52px 0}
  .check-grid{grid-template-columns:1fr}
  .issue{grid-template-columns:1fr 24px;gap:12px}
  .issue__title{grid-column:1 / -1}
  .compare-grid{grid-template-columns:1fr}
  .media-strip{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
  .cta-panel{flex-direction:column;align-items:flex-start;padding:34px}
  .hero-media img{aspect-ratio:16/10}
}
@media (max-width:767px){
  .hero-copy h1{font-size:clamp(28px,8vw,38px)}
  .hero-actions .btn{flex:1 1 100%}
  .section-head{margin-bottom:28px}
  .cta-panel__actions{width:100%}
  .cta-panel__actions .btn{flex:1 1 100%}
  .cross a{height:36px;font-size:13px}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .hero-stats b{font-size:17px}
  .anchor-bar{gap:8px}
  .chip{height:32px;padding:0 13px;font-size:12.5px}
}
@media (max-width:575px){
  .container{padding:0 16px}
  .topbar__inner{height:34px;font-size:11.5px}
  .topbar__right .topbar__link{display:none}
  .brand__mark{width:34px;height:34px;border-radius:10px}
  .brand__text strong{font-size:14px}
  .brand__text em{font-size:10px;letter-spacing:.1em}
  body{font-size:15.5px;line-height:1.85}
  .hero-tags li{font-size:11.5px}
  .check-card{padding:18px;gap:13px}
  .issue{padding:16px 18px}
  .faq__q{padding:13px 16px;font-size:15px}
  .faq__a{padding:0 16px 18px;font-size:14.5px}
  .cta-panel{padding:26px}
  .cross-box{padding:20px}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
  }
  .check-card:hover,.issue:hover,.chip:hover,.cross a:hover,.btn:hover{transform:none}
  .hero-media:hover img,.media-figure:hover img{transform:none}
}

/* roulang page: category4 */
:root{
  --bg-0:#05070F;
  --bg-1:#080D1A;
  --bg-2:#0D1526;
  --surface:#111C31;
  --surface-2:#16233B;
  --line:rgba(255,255,255,.10);
  --line-strong:rgba(91,231,196,.28);
  --text:#F4F8FF;
  --text-2:#B9C6DA;
  --muted:#8494AC;
  --primary:#5BE7C4;
  --primary-deep:#1FA88F;
  --accent:#FFB35C;
  --success:#5BE7C4;
  --warning:#FFB35C;
  --danger:#FF6B6B;
  --radius-lg:20px;
  --radius-md:16px;
  --radius-sm:12px;
  --radius-pill:999px;
  --shadow:0 18px 50px rgba(0,0,0,.28);
  --shadow-hover:0 24px 60px rgba(0,0,0,.42);
  --container:1200px;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background-color:var(--bg-0);
  background-image:
    radial-gradient(1000px 620px at 86% -8%, rgba(91,231,196,.11), transparent 62%),
    radial-gradient(900px 620px at -6% 102%, rgba(255,179,92,.07), transparent 60%);
  background-attachment:fixed;
  color:var(--text);
  font-family:"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;border:0;background:none;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
h1,h2,h3,h4{line-height:1.25;letter-spacing:.01em}
:focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:8px}

.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 24px;
}

/* ---------- 顶部信息条 ---------- */
.topbar{
  background:#060A14;
  border-bottom:1px solid var(--line);
  font-size:12px;
  color:var(--muted);
}
.topbar__inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  height:38px;
}
.topbar__domain{
  color:var(--text-2);
  letter-spacing:.02em;
  font-variant-numeric:tabular-nums;
}
.topbar__tips{
  color:var(--muted);
  letter-spacing:.04em;
}
.topbar__actions{
  display:flex;
  align-items:center;
  gap:12px;
}
.topbar__actions a{
  color:var(--text-2);
  transition:color .2s ease;
}
.topbar__actions a:hover{color:var(--primary)}
.topbar__actions .pill-link{
  display:inline-flex;
  align-items:center;
  height:24px;
  padding:0 12px;
  border-radius:var(--radius-pill);
  border:1px solid var(--line-strong);
  color:var(--primary);
  background:rgba(91,231,196,.08);
  transition:background .2s ease,transform .2s ease;
}
.topbar__actions .pill-link:hover{
  background:rgba(91,231,196,.16);
  transform:translateY(-1px);
}

/* ---------- 主导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(6,10,20,.82);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid transparent;
  transition:background .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.site-header.is-scrolled{
  background:rgba(6,10,20,.94);
  border-bottom-color:var(--line);
  box-shadow:0 12px 34px rgba(0,0,0,.4);
}
.nav{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  height:72px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  min-width:0;
}
.brand__mark{
  width:38px;
  height:38px;
  flex:0 0 38px;
  display:grid;
  place-items:center;
  border-radius:12px;
  border:1px solid var(--line-strong);
  background:radial-gradient(120% 120% at 20% 10%, rgba(91,231,196,.22), rgba(17,28,49,.9) 70%);
  box-shadow:0 0 18px rgba(91,231,196,.18);
}
.brand__mark svg{width:22px;height:22px}
.brand__text{
  display:flex;
  flex-direction:column;
  line-height:1.2;
}
.brand__text strong{
  font-size:16px;
  font-weight:700;
  letter-spacing:.02em;
  color:var(--text);
}
.brand__text em{
  font-style:normal;
  font-size:11px;
  color:var(--primary);
  letter-spacing:.08em;
}
.nav__links{
  display:flex;
  align-items:center;
  gap:4px;
}
.nav__links a{
  position:relative;
  display:inline-flex;
  align-items:center;
  height:38px;
  padding:0 12px;
  border-radius:10px;
  font-size:15px;
  color:var(--text-2);
  transition:color .2s ease,background .2s ease;
}
.nav__links a:hover{
  color:var(--primary);
  background:rgba(91,231,196,.07);
}
.nav__links a::after{
  content:"";
  position:absolute;
  left:12px;
  right:12px;
  bottom:-14px;
  height:2px;
  border-radius:2px;
  background:linear-gradient(90deg,var(--primary),#9BEF8A);
  opacity:0;
  transform:scaleX(.4);
  transform-origin:left center;
  transition:opacity .25s ease,transform .25s ease;
}
.nav__links a.is-active{
  color:var(--text);
}
.nav__links a.is-active::after{
  opacity:1;
  transform:scaleX(1);
}
.nav__links a.is-active::before{
  content:"";
  position:absolute;
  left:50%;
  bottom:-19px;
  width:6px;
  height:6px;
  margin-left:-3px;
  border-radius:50%;
  background:var(--primary);
  box-shadow:0 0 10px rgba(91,231,196,.9);
}
.nav__actions{
  display:flex;
  align-items:center;
  gap:12px;
}
.nav__burger{
  display:none;
  position:relative;
  width:44px;
  height:44px;
  border-radius:12px;
  border:1px solid var(--line);
  background:var(--surface);
  transition:border-color .2s ease,background .2s ease;
}
.nav__burger:hover{border-color:var(--line-strong)}
.nav__burger span{
  position:absolute;
  left:50%;
  top:50%;
  width:18px;
  height:2px;
  border-radius:2px;
  background:var(--text);
  transform:translate(-50%,-50%);
  transition:background .25s ease;
}
.nav__burger span::before,
.nav__burger span::after{
  content:"";
  position:absolute;
  left:0;
  width:18px;
  height:2px;
  border-radius:2px;
  background:var(--text);
  transition:transform .25s ease,top .25s ease;
}
.nav__burger span::before{top:-6px}
.nav__burger span::after{top:6px}
.nav__burger[aria-expanded="true"] span{background:transparent}
.nav__burger[aria-expanded="true"] span::before{top:0;transform:rotate(45deg)}
.nav__burger[aria-expanded="true"] span::after{top:0;transform:rotate(-45deg)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 24px;
  border-radius:var(--radius-pill);
  font-size:15px;
  font-weight:600;
  letter-spacing:.02em;
  white-space:nowrap;
  border:1px solid transparent;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,border-color .2s ease,color .2s ease,opacity .2s ease;
}
.btn--primary{
  color:#05231D;
  background:linear-gradient(100deg,var(--primary),#9BEF8A);
  box-shadow:0 10px 28px rgba(91,231,196,.28);
}
.btn--primary:hover{
  transform:translateY(-2px);
  box-shadow:0 16px 36px rgba(91,231,196,.4);
}
.btn--primary:active{transform:translateY(0);box-shadow:0 8px 20px rgba(91,231,196,.24)}
.btn--ghost{
  color:var(--text);
  border-color:var(--line);
  background:rgba(17,28,49,.6);
}
.btn--ghost:hover{
  border-color:var(--line-strong);
  background:rgba(91,231,196,.1);
  color:var(--primary);
  transform:translateY(-2px);
}
.btn--ghost:active{transform:translateY(0)}
.btn--sm{
  height:40px;
  padding:0 18px;
  font-size:14px;
}
.btn[disabled],
.btn.is-disabled{
  opacity:.45;
  cursor:not-allowed;
  box-shadow:none;
  transform:none;
}

/* ---------- 通用标签 ---------- */
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:28px;
  padding:0 14px;
  border-radius:var(--radius-pill);
  border:1px solid var(--line-strong);
  background:rgba(91,231,196,.08);
  color:var(--primary);
  font-size:12px;
  letter-spacing:.1em;
}
.eyebrow::before{
  content:"";
  width:6px;
  height:6px;
  border-radius:50%;
  background:var(--primary);
  box-shadow:0 0 8px rgba(91,231,196,.9);
}
.tag{
  display:inline-flex;
  align-items:center;
  height:24px;
  padding:0 10px;
  border-radius:var(--radius-pill);
  border:1px solid var(--line);
  background:rgba(22,35,59,.7);
  color:var(--text-2);
  font-size:12px;
  white-space:nowrap;
}
.tag--accent{
  border-color:rgba(255,179,92,.34);
  background:rgba(255,179,92,.1);
  color:var(--accent);
}

/* ---------- 首屏 ---------- */
.page-hero{
  position:relative;
  padding:36px 0 56px;
  overflow:hidden;
  border-bottom:1px solid var(--line);
}
.page-hero::before{
  content:"";
  position:absolute;
  inset:0;
  background:url("/assets/images/backpic/back-2.webp") center/cover no-repeat;
  opacity:.16;
}
.page-hero::after{
  content:"";
  position:absolute;
  inset:0;
  background:
    radial-gradient(700px 420px at 90% 0%, rgba(91,231,196,.16), transparent 62%),
    linear-gradient(180deg, rgba(5,7,15,.42) 0%, rgba(5,7,15,.9) 62%, var(--bg-0) 100%);
}
.page-hero > .container{position:relative;z-index:1}

.breadcrumb{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:12px;
  color:var(--muted);
  margin-bottom:26px;
  overflow-x:auto;
  white-space:nowrap;
  scrollbar-width:none;
}
.breadcrumb::-webkit-scrollbar{display:none}
.breadcrumb a{color:var(--muted);transition:color .2s ease}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb .sep{opacity:.5}
.breadcrumb .current{color:var(--primary)}

.page-hero__grid{
  display:grid;
  grid-template-columns:1.35fr .92fr;
  gap:40px;
  align-items:start;
}
.page-hero h1{
  margin:18px 0 16px;
  font-size:clamp(30px,4vw,50px);
  font-weight:800;
  line-height:1.14;
  letter-spacing:.01em;
}
.page-hero h1 .accent{
  color:var(--primary);
  background:linear-gradient(100deg,var(--primary),#9BEF8A);
  -webkit-background-clip:text;
  background-clip:text;
  -webkit-text-fill-color:transparent;
}
.lede{
  font-size:16px;
  line-height:1.85;
  color:var(--text-2);
  max-width:62ch;
}
.hero-actions{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  margin-top:26px;
}

/* 倒计时卡 */
.countdown-card{
  border-radius:var(--radius-lg);
  padding:24px;
  background:linear-gradient(180deg, rgba(18,28,48,.78), rgba(10,16,30,.62));
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border:1px solid var(--line-strong);
  box-shadow:var(--shadow), inset 0 1px 0 rgba(255,255,255,.06);
}
.countdown-card__head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  margin-bottom:18px;
}
.countdown-card__head h2{
  font-size:15px;
  font-weight:700;
  color:var(--text);
  letter-spacing:.02em;
}
.countdown-card__head span{
  font-size:11px;
  color:var(--muted);
  letter-spacing:.08em;
}
.countdown{
  display:flex;
  align-items:flex-start;
  gap:8px;
  flex-wrap:wrap;
}
.cd-item{
  display:flex;
  flex-direction:column;
  align-items:center;
  gap:6px;
}
.cd-num{
  display:grid;
  place-items:center;
  width:48px;
  height:52px;
  border-radius:var(--radius-sm);
  background:linear-gradient(180deg, rgba(22,35,59,.95), rgba(13,21,38,.95));
  border:1px solid var(--line);
  font-size:24px;
  font-weight:700;
  color:var(--text);
  font-variant-numeric:tabular-nums;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06);
}
.cd-label{
  font-size:11px;
  color:var(--muted);
  letter-spacing:.08em;
}
.cd-sep{
  font-size:20px;
  font-weight:700;
  color:var(--primary);
  line-height:52px;
  opacity:.7;
}
.countdown-note{
  margin-top:16px;
  padding-top:16px;
  border-top:1px solid var(--line);
  font-size:13px;
  color:var(--muted);
  line-height:1.7;
}
.countdown-ended{
  display:flex;
  align-items:center;
  justify-content:center;
  height:52px;
  border-radius:var(--radius-sm);
  border:1px dashed rgba(255,179,92,.4);
  background:rgba(255,179,92,.08);
  color:var(--accent);
  font-size:15px;
  letter-spacing:.06em;
}

/* 锚点胶囊 */
.anchor-pills{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:34px;
}
.anchor-pills a{
  display:inline-flex;
  align-items:center;
  height:36px;
  padding:0 16px;
  border-radius:var(--radius-pill);
  border:1px solid var(--line);
  background:rgba(17,28,49,.6);
  color:var(--text-2);
  font-size:13px;
  transition:color .2s ease,border-color .2s ease,background .2s ease,transform .2s ease;
}
.anchor-pills a:hover{
  color:var(--primary);
  border-color:var(--line-strong);
  background:rgba(91,231,196,.1);
  transform:translateY(-2px);
}

/* ---------- 板块通用 ---------- */
.section{
  padding:72px 0 0;
}
.section__head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  margin-bottom:32px;
  flex-wrap:wrap;
}
.section__head h2{
  font-size:clamp(24px,3vw,34px);
  font-weight:800;
  margin-top:14px;
}
.section__head p{
  font-size:15px;
  color:var(--muted);
  max-width:56ch;
  line-height:1.8;
}
.section__desc{
  font-size:15px;
  color:var(--text-2);
  line-height:1.85;
  max-width:70ch;
  margin-top:12px;
}

/* ---------- 三阶段活动流 ---------- */
.stage-flow{
  display:grid;
  gap:16px;
  position:relative;
}
.stage{
  position:relative;
  display:grid;
  grid-template-columns:72px 1fr;
  gap:20px;
  padding:26px;
  border-radius:var(--radius-md);
  background:var(--surface);
  border:1px solid var(--line);
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.stage:hover{
  transform:translateY(-4px);
  border-color:var(--line-strong);
  box-shadow:var(--shadow-hover);
}
.stage__no{
  display:grid;
  place-items:center;
  width:56px;
  height:56px;
  border-radius:16px;
  border:1px solid var(--line-strong);
  background:radial-gradient(120% 120% at 25% 15%, rgba(91,231,196,.24), rgba(13,21,38,.9) 72%);
  color:var(--primary);
  font-size:19px;
  font-weight:800;
  font-variant-numeric:tabular-nums;
  letter-spacing:.02em;
}
.stage__body h3{
  font-size:19px;
  font-weight:700;
  margin-bottom:8px;
}
.stage__body p{
  font-size:14.5px;
  color:var(--text-2);
  line-height:1.85;
  max-width:70ch;
}
.stage__meta{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  margin-top:14px;
}

/* ---------- 亮点图墙 ---------- */
.gallery-wall{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:20px;
}
.gallery-card{
  position:relative;
  display:block;
  border-radius:var(--radius-md);
  overflow:hidden;
  border:1px solid var(--line);
  background:var(--surface);
  transition:transform .3s ease,border-color .3s ease,box-shadow .3s ease;
}
.gallery-card:hover,
.gallery-card:focus-within{
  border-color:var(--line-strong);
  box-shadow:var(--shadow-hover);
}
.gallery-card img{
  width:100%;
  height:240px;
  object-fit:cover;
  transition:transform .45s ease;
}
.gallery-card:hover img{transform:scale(1.04)}
.gallery-card__cap{
  position:absolute;
  left:0;
  right:0;
  bottom:0;
  padding:38px 18px 16px;
  font-size:14px;
  color:var(--text);
  background:linear-gradient(180deg, rgba(5,7,15,0) 0%, rgba(5,7,15,.88) 70%);
}
.gallery-card__cap span{
  display:inline-flex;
  align-items:center;
  height:22px;
  padding:0 9px;
  margin-right:8px;
  border-radius:var(--radius-pill);
  border:1px solid rgba(91,231,196,.34);
  background:rgba(91,231,196,.14);
  color:var(--primary);
  font-size:11px;
  vertical-align:middle;
}

/* ---------- 参与提示 / 规则说明 ---------- */
.rules-box{
  border-radius:var(--radius-lg);
  border:1px solid var(--line);
  background:linear-gradient(160deg, rgba(22,35,59,.72), rgba(8,13,26,.92));
  padding:32px;
}
.rules-grid{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:18px 32px;
}
.rule-item{
  display:grid;
  grid-template-columns:26px 1fr;
  gap:12px;
  padding:14px 0;
  border-bottom:1px solid rgba(255,255,255,.06);
}
.rule-item:last-child,
.rule-item:nth-last-child(2){border-bottom:0}
.rule-item__ico{
  width:26px;
  height:26px;
  border-radius:9px;
  display:grid;
  place-items:center;
  background:rgba(91,231,196,.12);
  border:1px solid rgba(91,231,196,.28);
  color:var(--primary);
  margin-top:2px;
}
.rule-item__ico svg{width:14px;height:14px}
.rule-item h4{
  font-size:15px;
  font-weight:700;
  margin-bottom:4px;
}
.rule-item p{
  font-size:14px;
  color:var(--text-2);
  line-height:1.8;
}

.callout{
  display:grid;
  grid-template-columns:36px 1fr;
  gap:14px;
  margin-top:24px;
  padding:20px 22px;
  border-radius:var(--radius-md);
  border:1px solid rgba(255,179,92,.32);
  background:linear-gradient(120deg, rgba(255,179,92,.13), rgba(255,179,92,.04));
}
.callout__ico{
  width:36px;
  height:36px;
  border-radius:12px;
  display:grid;
  place-items:center;
  background:rgba(255,179,92,.16);
  border:1px solid rgba(255,179,92,.34);
  color:var(--accent);
}
.callout h4{
  font-size:15px;
  font-weight:700;
  color:var(--accent);
  margin-bottom:6px;
}
.callout p{
  font-size:14px;
  color:var(--text-2);
  line-height:1.8;
}

/* ---------- CTA 面板 ---------- */
.cta-panel{
  position:relative;
  overflow:hidden;
  display:grid;
  grid-template-columns:1fr auto;
  gap:32px;
  align-items:center;
  padding:38px;
  border-radius:var(--radius-lg);
  border:1px solid var(--line-strong);
  background:
    linear-gradient(120deg, rgba(91,231,196,.14) 0%, rgba(17,28,49,.92) 46%, rgba(13,21,38,.96) 100%);
  box-shadow:var(--shadow);
}
.cta-panel::before{
  content:"";
  position:absolute;
  right:-80px;
  top:-100px;
  width:340px;
  height:340px;
  border-radius:50%;
  background:radial-gradient(circle, rgba(91,231,196,.22), transparent 68%);
  pointer-events:none;
}
.cta-panel > *{position:relative;z-index:1}
.cta-panel h2{
  font-size:clamp(22px,2.6vw,30px);
  font-weight:800;
  margin-bottom:12px;
}
.cta-panel p{
  font-size:15px;
  color:var(--text-2);
  line-height:1.85;
  max-width:62ch;
}
.cta-panel__actions{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
}

/* ---------- FAQ ---------- */
.faq{
  border-radius:var(--radius-lg);
  border:1px solid var(--line);
  background:var(--bg-1);
  padding:8px 28px;
}
.faq-item{
  border-bottom:1px solid var(--line);
}
.faq-item:last-child{border-bottom:0}
.faq-q{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  width:100%;
  min-height:56px;
  padding:18px 0;
  text-align:left;
  font-size:16px;
  font-weight:600;
  color:var(--text);
  transition:color .2s ease;
}
.faq-q:hover{color:var(--primary)}
.faq-q .ico{
  position:relative;
  flex:0 0 22px;
  width:22px;
  height:22px;
  border-radius:50%;
  border:1px solid var(--line-strong);
  transition:transform .3s ease,background .3s ease;
}
.faq-q .ico::before,
.faq-q .ico::after{
  content:"";
  position:absolute;
  left:50%;
  top:50%;
  background:var(--primary);
  border-radius:2px;
  transform:translate(-50%,-50%);
}
.faq-q .ico::before{width:10px;height:1.6px}
.faq-q .ico::after{width:1.6px;height:10px;transition:opacity .3s ease}
.faq-item.is-open .faq-q{color:var(--primary)}
.faq-item.is-open .faq-q .ico{
  transform:rotate(45deg);
  background:rgba(91,231,196,.14);
}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .32s ease;
}
.faq-a__inner{
  padding:0 0 20px 16px;
  border-left:2px solid var(--primary);
  font-size:15px;
  line-height:1.85;
  color:var(--text-2);
  max-width:68ch;
}
.faq-item.is-open .faq-a{background:rgba(91,231,196,.04)}

/* ---------- 跨分类链接 ---------- */
.cross-links{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  padding:28px;
  border-radius:var(--radius-lg);
  border:1px dashed rgba(255,255,255,.14);
  background:rgba(13,21,38,.6);
}
.cross-links h3{
  width:100%;
  font-size:14px;
  font-weight:700;
  color:var(--text-2);
  margin-bottom:4px;
  letter-spacing:.04em;
}
.cross-links a{
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:40px;
  padding:0 18px;
  border-radius:var(--radius-pill);
  border:1px solid var(--line);
  background:var(--surface);
  color:var(--text-2);
  font-size:14px;
  transition:color .2s ease,border-color .2s ease,background .2s ease,transform .2s ease;
}
.cross-links a:hover{
  color:var(--primary);
  border-color:var(--line-strong);
  background:rgba(91,231,196,.1);
  transform:translateY(-2px);
}
.cross-links a::after{
  content:"→";
  font-size:12px;
  opacity:.6;
}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:84px;
  border-top:1px solid var(--line);
  background:var(--bg-1);
  padding-top:56px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:36px;
}
.footer-brand .brand{margin-bottom:16px}
.footer-brand p{
  font-size:14px;
  color:var(--muted);
  line-height:1.85;
  max-width:34ch;
}
.footer-col h4{
  font-size:14px;
  font-weight:700;
  color:var(--text);
  margin-bottom:16px;
  letter-spacing:.04em;
}
.footer-col li + li{margin-top:9px}
.footer-col a{
  font-size:14px;
  color:var(--text-2);
  transition:color .2s ease;
}
.footer-col a:hover{color:var(--primary)}
.footer-col p{
  font-size:13.5px;
  color:var(--muted);
  line-height:1.85;
}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:14px;
  margin-top:44px;
  padding:24px 0;
  border-top:1px solid var(--line);
  font-size:12px;
  color:var(--muted);
}
.footer-bottom .sep{margin:0 8px;opacity:.45}

/* ---------- 抽屉导航 ---------- */
.drawer{
  position:fixed;
  inset:0;
  z-index:120;
  visibility:hidden;
  pointer-events:none;
}
.drawer__backdrop{
  position:absolute;
  inset:0;
  background:rgba(2,4,10,.62);
  opacity:0;
  transition:opacity .3s ease;
}
.drawer__panel{
  position:absolute;
  top:0;
  right:0;
  bottom:0;
  width:min(336px,88vw);
  padding:20px;
  display:flex;
  flex-direction:column;
  gap:6px;
  background:#0A1120;
  border-left:1px solid var(--line);
  transform:translateX(100%);
  transition:transform .3s ease;
  overflow-y:auto;
}
.drawer.is-open{visibility:visible;pointer-events:auto}
.drawer.is-open .drawer__backdrop{opacity:1}
.drawer.is-open .drawer__panel{transform:translateX(0)}
.drawer__head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding-bottom:16px;
  margin-bottom:10px;
  border-bottom:1px solid var(--line);
}
.drawer__close{
  width:40px;
  height:40px;
  border-radius:12px;
  border:1px solid var(--line);
  display:grid;
  place-items:center;
  color:var(--text-2);
  transition:color .2s ease,border-color .2s ease;
}
.drawer__close:hover{color:var(--primary);border-color:var(--line-strong)}
.drawer__link{
  display:flex;
  align-items:center;
  height:48px;
  padding:0 14px;
  border-radius:12px;
  border:1px solid transparent;
  font-size:15px;
  color:var(--text-2);
  transition:background .2s ease,color .2s ease,border-color .2s ease;
}
.drawer__link:hover{
  background:var(--surface);
  color:var(--primary);
}
.drawer__link.is-active{
  color:var(--primary);
  background:rgba(91,231,196,.1);
  border-color:var(--line-strong);
}
.drawer__cta{margin-top:auto;padding-top:20px}
.drawer__cta .btn{width:100%}

/* ---------- 响应式 ---------- */
@media (min-width:1320px){
  .container{max-width:1280px}
}
@media (max-width:1199px){
  .page-hero__grid{gap:30px}
  .gallery-card img{height:220px}
}
@media (max-width:991px){
  .nav__links{display:none}
  .nav__burger{display:block}
  .nav{height:66px}
  .nav__actions .btn--primary{display:none}
  .page-hero{padding:28px 0 44px}
  .page-hero__grid{grid-template-columns:1fr;gap:28px}
  .gallery-wall{grid-template-columns:repeat(2,1fr)}
  .rules-grid{grid-template-columns:1fr}
  .rule-item:nth-last-child(2){border-bottom:1px solid rgba(255,255,255,.06)}
  .rule-item:last-child{border-bottom:0}
  .footer-grid{grid-template-columns:repeat(2,1fr);gap:30px}
  .cta-panel{grid-template-columns:1fr;padding:30px}
  .stage{grid-template-columns:56px 1fr;gap:16px;padding:22px}
  .stage__no{width:48px;height:48px;font-size:17px;border-radius:14px}
}
@media (max-width:767px){
  .container{padding:0 18px}
  .section{padding:56px 0 0}
  .topbar__tips{display:none}
  .topbar__inner{height:34px}
  .topbar{font-size:11.5px}
  .page-hero h1{font-size:clamp(26px,7vw,34px)}
  .section__head{margin-bottom:24px}
  .gallery-card img{height:200px}
  .rules-box{padding:24px}
  .faq{padding:4px 20px}
  .site-footer{margin-top:64px;padding-top:44px}
}
@media (max-width:575px){
  .gallery-wall{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .page-hero{padding:22px 0 36px}
  .hero-actions .btn{width:100%}
  .cta-panel{padding:24px}
  .cta-panel__actions .btn{width:100%}
  .stage{grid-template-columns:1fr;gap:14px}
  .cd-num{width:44px;height:48px;font-size:21px}
  .cd-sep{line-height:48px}
  .faq-q{font-size:15px}
  .faq-a__inner{font-size:14.5px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .cross-links{padding:22px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;scroll-behavior:auto !important}
}

/* roulang page: category5 */
:root{
  --bg-0:#05070F;
  --bg-1:#080D1A;
  --bg-2:#0D1526;
  --surface:#111C31;
  --surface-2:#16233B;
  --line:rgba(255,255,255,.10);
  --line-strong:rgba(91,231,196,.28);
  --text:#F4F8FF;
  --text-2:#B9C6DA;
  --muted:#8494AC;
  --primary:#5BE7C4;
  --primary-deep:#1FA88F;
  --accent:#FFB35C;
  --success:#5BE7C4;
  --warning:#FFB35C;
  --danger:#FF6B6B;
  --radius-lg:20px;
  --radius-md:16px;
  --radius-sm:12px;
  --radius-pill:999px;
  --shadow:0 18px 50px rgba(0,0,0,.28);
  --shadow-hover:0 24px 60px rgba(0,0,0,.42);
  --container:1200px;
}

*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background-color:var(--bg-0);
  background-image:
    radial-gradient(900px 620px at 88% -8%, rgba(91,231,196,.12), transparent 70%),
    radial-gradient(720px 520px at -6% 104%, rgba(255,179,92,.08), transparent 70%),
    linear-gradient(180deg,#05070F 0%,#080D1A 42%,#05070F 100%);
  background-attachment:fixed;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background-image:
    radial-gradient(rgba(255,255,255,.055) 1px, transparent 1px),
    radial-gradient(rgba(91,231,196,.06) 1px, transparent 1px);
  background-size:120px 120px, 200px 200px;
  background-position:0 0, 60px 80px;
  opacity:.65;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;}
button{font:inherit;color:inherit;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
svg{display:block;}
::selection{background:rgba(91,231,196,.28);color:#04120F;}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;position:relative;z-index:1;}

/* ===== 顶部信息条 ===== */
.topbar{
  background:#04060C;
  border-bottom:1px solid var(--line);
  font-size:12px;
  color:var(--muted);
  position:relative;
  z-index:70;
}
.topbar__inner{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:38px;}
.topbar__domain{letter-spacing:.04em;font-variant-numeric:tabular-nums;color:var(--text-2);}
.topbar__note{color:var(--muted);}
.topbar__actions{display:flex;align-items:center;gap:14px;}
.topbar__actions a{color:var(--text-2);transition:color .2s;}
.topbar__actions a:hover{color:var(--primary);}
.topbar__pill{
  display:inline-flex;align-items:center;height:24px;padding:0 12px;
  border-radius:var(--radius-pill);border:1px solid var(--line-strong);
  color:var(--primary)!important;background:rgba(91,231,196,.08);
  transition:background .2s,border-color .2s;
}
.topbar__pill:hover{background:rgba(91,231,196,.16);}

/* ===== 主导航 ===== */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(5,7,15,.86);
  border-bottom:1px solid var(--line);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  transition:background .28s,box-shadow .28s,border-color .28s;
}
.site-header.is-scrolled{
  background:rgba(6,9,18,.93);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom-color:var(--line-strong);
  box-shadow:0 10px 30px rgba(0,0,0,.38);
}
.nav{display:flex;align-items:center;gap:24px;min-height:72px;}
.brand{display:flex;align-items:center;gap:10px;flex:none;}
.brand__mark{
  width:38px;height:38px;border-radius:12px;display:grid;place-items:center;
  background:linear-gradient(160deg,rgba(91,231,196,.18),rgba(91,231,196,.02));
  border:1px solid var(--line-strong);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08);
}
.brand__mark svg{width:22px;height:22px;}
.brand__text{display:flex;flex-direction:column;line-height:1.15;}
.brand__text strong{font-size:16px;font-weight:800;letter-spacing:.02em;}
.brand__text em{font-style:normal;font-size:11px;color:var(--muted);letter-spacing:.12em;}
.nav__links{display:flex;align-items:center;gap:2px;margin-left:auto;}
.nav__links a{
  position:relative;display:inline-flex;align-items:center;height:40px;padding:0 12px;
  font-size:15px;color:var(--text-2);border-radius:10px;
  transition:color .2s,background .2s;
}
.nav__links a:hover{color:var(--primary);background:rgba(91,231,196,.06);}
.nav__links a:focus-visible{outline:2px solid var(--primary);outline-offset:2px;}
.nav__links a.is-active{color:var(--text);font-weight:600;}
.nav__links a.is-active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--primary),#9BEF8A);
  box-shadow:0 0 12px rgba(91,231,196,.7);
}
.nav__actions{display:flex;align-items:center;gap:10px;flex:none;}
.nav__burger{
  display:none;width:44px;height:44px;border-radius:12px;
  border:1px solid var(--line);background:transparent;cursor:pointer;
  align-items:center;justify-content:center;
  transition:border-color .2s,background .2s;
}
.nav__burger:hover{border-color:var(--line-strong);background:rgba(91,231,196,.06);}
.nav__burger:focus-visible{outline:2px solid var(--primary);outline-offset:2px;}
.nav__burger span{display:block;width:18px;height:2px;background:var(--text);border-radius:2px;position:relative;}
.nav__burger span::before,.nav__burger span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--text);border-radius:2px;
}
.nav__burger span::before{top:-6px;}
.nav__burger span::after{top:6px;}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--radius-pill);
  border:1px solid transparent;font-size:15px;font-weight:600;
  cursor:pointer;white-space:nowrap;
  transition:transform .2s,box-shadow .2s,background .2s,border-color .2s,color .2s,filter .2s;
}
.btn--sm{height:40px;padding:0 18px;font-size:14px;}
.btn--primary{
  background:linear-gradient(135deg,#5BE7C4,#9BEF8A);
  color:#04120F;
  box-shadow:0 10px 28px rgba(91,231,196,.26);
}
.btn--primary:hover{transform:translateY(-2px);box-shadow:0 14px 34px rgba(91,231,196,.4);filter:brightness(1.05);}
.btn--primary:active{transform:translateY(0);box-shadow:0 6px 16px rgba(91,231,196,.3);}
.btn--ghost{background:transparent;border-color:var(--line-strong);color:var(--text);}
.btn--ghost:hover{background:rgba(91,231,196,.08);border-color:var(--primary);color:var(--primary);transform:translateY(-2px);}
.btn--ghost:active{transform:translateY(0);}
.btn:focus-visible{outline:2px solid var(--primary);outline-offset:3px;}
.btn[disabled],.btn.is-disabled{opacity:.45;box-shadow:none;pointer-events:none;}

/* ===== 抽屉菜单 ===== */
.drawer-overlay{
  position:fixed;inset:0;z-index:90;
  background:rgba(3,5,12,.72);
  backdrop-filter:blur(2px);
  opacity:0;visibility:hidden;
  transition:opacity .3s,visibility .3s;
}
.drawer-overlay.is-open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;top:0;right:0;bottom:0;z-index:95;
  width:min(320px,86vw);
  background:#080D1A;
  border-left:1px solid var(--line-strong);
  display:flex;flex-direction:column;
  padding:20px;gap:8px;overflow-y:auto;
  transform:translateX(101%);
  transition:transform .32s cubic-bezier(.4,0,.2,1);
  box-shadow:-18px 0 50px rgba(0,0,0,.5);
}
.drawer.is-open{transform:translateX(0);}
.drawer__head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-bottom:14px;border-bottom:1px solid var(--line);}
.drawer__close{
  width:40px;height:40px;border-radius:12px;border:1px solid var(--line);
  background:transparent;cursor:pointer;display:grid;place-items:center;position:relative;
}
.drawer__close::before,.drawer__close::after{
  content:"";position:absolute;width:16px;height:2px;background:var(--text-2);border-radius:2px;
}
.drawer__close::before{transform:rotate(45deg);}
.drawer__close::after{transform:rotate(-45deg);}
.drawer__close:focus-visible{outline:2px solid var(--primary);outline-offset:2px;}
.drawer__links{display:grid;gap:4px;margin-top:12px;}
.drawer__links a{
  display:flex;align-items:center;height:48px;padding:0 14px;border-radius:12px;
  font-size:15px;color:var(--text-2);border:1px solid transparent;
  transition:background .2s,color .2s,border-color .2s;
}
.drawer__links a:hover{background:rgba(91,231,196,.08);color:var(--text);}
.drawer__links a.is-active{color:var(--primary);border-color:var(--line-strong);background:rgba(91,231,196,.06);}
.drawer__cta{margin-top:auto;}

/* ===== 内页首屏 ===== */
.page-hero{
  position:relative;isolation:isolate;overflow:hidden;
  padding:32px 0 56px;
  border-bottom:1px solid var(--line);
}
.page-hero::before{
  content:"";position:absolute;inset:0;z-index:-2;
  background:url(/assets/images/backpic/back-2.webp) center/cover no-repeat;
  opacity:.22;
}
.page-hero::after{
  content:"";position:absolute;inset:0;z-index:-1;
  background:
    radial-gradient(720px 400px at 86% 4%, rgba(91,231,196,.16), transparent 72%),
    linear-gradient(180deg, rgba(5,7,15,.5), rgba(5,7,15,.95));
}
.crumbs{
  display:flex;align-items:center;gap:8px;flex-wrap:nowrap;overflow-x:auto;
  font-size:12px;color:var(--muted);padding-bottom:26px;
  scrollbar-width:none;
}
.crumbs::-webkit-scrollbar{display:none;}
.crumbs a{color:var(--muted);transition:color .2s;white-space:nowrap;}
.crumbs a:hover{color:var(--primary);}
.crumbs .sep{color:rgba(255,255,255,.2);}
.crumbs .current{color:var(--primary);white-space:nowrap;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;height:30px;padding:0 14px;
  border-radius:var(--radius-pill);border:1px solid var(--line-strong);
  background:rgba(91,231,196,.08);color:var(--primary);
  font-size:12px;letter-spacing:.06em;
}
.eyebrow::before{
  content:"";width:6px;height:6px;border-radius:50%;
  background:var(--primary);box-shadow:0 0 10px var(--primary);
}
.page-hero h1{
  font-size:clamp(30px,4.6vw,50px);
  line-height:1.16;font-weight:800;letter-spacing:.01em;
  margin:18px 0 14px;max-width:20ch;
}
.page-hero h1 .hl{
  background:linear-gradient(120deg,#5BE7C4,#9BEF8A);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.lead{font-size:clamp(15px,1.5vw,17px);color:var(--text-2);max-width:52ch;line-height:1.85;}
.anchors{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;}
.anchors a{
  display:inline-flex;align-items:center;gap:6px;height:36px;padding:0 16px;
  border-radius:var(--radius-pill);border:1px solid var(--line);
  background:rgba(17,28,49,.72);font-size:13px;color:var(--text-2);
  transition:border-color .2s,color .2s,background .2s,transform .2s;
}
.anchors a:hover{border-color:var(--line-strong);color:var(--primary);background:rgba(91,231,196,.1);transform:translateY(-2px);}
.anchors a:focus-visible{outline:2px solid var(--primary);outline-offset:2px;}

/* ===== 通用板块 ===== */
.section{padding:64px 0;}
.section--tight{padding:52px 0 8px;}
.section-head{max-width:62ch;margin-bottom:32px;}
.section-head h2{font-size:clamp(24px,2.8vw,32px);line-height:1.25;font-weight:800;letter-spacing:.01em;}
.section-head p{margin-top:12px;color:var(--muted);font-size:15px;}

/* ===== 快速自查条 ===== */
.quick-strip{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));
  gap:16px;margin-top:36px;
}
.quick-strip__item{
  display:flex;gap:14px;align-items:flex-start;
  padding:20px;border-radius:var(--radius-md);
  background:var(--surface);border:1px solid var(--line);
  transition:border-color .25s,transform .25s,box-shadow .25s;
}
.quick-strip__item:hover{border-color:var(--line-strong);transform:translateY(-4px);box-shadow:var(--shadow);}
.quick-strip__item .num{
  flex:none;width:34px;height:34px;border-radius:10px;display:grid;place-items:center;
  background:rgba(91,231,196,.1);border:1px solid var(--line-strong);
  color:var(--primary);font-size:13px;font-weight:700;font-variant-numeric:tabular-nums;
}
.quick-strip__item h3{font-size:15px;font-weight:700;margin-bottom:4px;}
.quick-strip__item p{font-size:13px;color:var(--muted);line-height:1.75;}

/* ===== FAQ 双栏 ===== */
.grid-faq{
  display:grid;grid-template-columns:minmax(0,4fr) minmax(0,8fr);
  gap:32px;align-items:start;
}
.faq-index{
  position:sticky;top:96px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  padding:24px;box-shadow:var(--shadow);
}
.faq-index h2{font-size:18px;font-weight:800;letter-spacing:.01em;}
.faq-index > p{font-size:13px;color:var(--muted);margin:6px 0 18px;line-height:1.7;}
.faq-index ol{display:grid;gap:6px;}
.faq-index a{
  display:flex;align-items:baseline;gap:10px;
  padding:11px 12px;border-radius:12px;border:1px solid transparent;
  font-size:14px;color:var(--text-2);
  transition:border-color .2s,background .2s,color .2s,transform .2s;
}
.faq-index a span{
  font-size:12px;color:var(--primary);font-variant-numeric:tabular-nums;letter-spacing:.04em;
}
.faq-index a:hover{border-color:var(--line-strong);background:rgba(91,231,196,.07);color:var(--text);transform:translateX(2px);}
.faq-index a:focus-visible{outline:2px solid var(--primary);outline-offset:2px;}
.faq-index__note{
  margin-top:18px;padding-top:16px;border-top:1px solid var(--line);
  font-size:12px;color:var(--muted);line-height:1.75;
}
.faq-groups{display:grid;gap:44px;}
.faq-group{scroll-margin-top:96px;}
.faq-group__title{display:flex;align-items:center;gap:12px;font-size:20px;font-weight:800;margin-bottom:14px;letter-spacing:.01em;}
.faq-group__title span{
  display:inline-flex;align-items:center;justify-content:center;
  min-width:38px;height:26px;padding:0 10px;border-radius:var(--radius-pill);
  border:1px solid var(--line-strong);background:rgba(91,231,196,.08);
  color:var(--primary);font-size:12px;font-variant-numeric:tabular-nums;letter-spacing:.06em;
}
.acc{
  border:1px solid var(--line);border-radius:var(--radius-md);
  background:var(--surface);margin-bottom:10px;overflow:hidden;
  transition:border-color .25s,background .25s,box-shadow .25s;
}
.acc:hover{border-color:var(--line-strong);}
.acc summary{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:56px;padding:16px 20px;cursor:pointer;
  font-size:16px;font-weight:600;color:var(--text);
  list-style:none;transition:color .2s;
}
.acc summary::-webkit-details-marker{display:none;}
.acc summary:focus-visible{outline:2px solid var(--primary);outline-offset:-2px;border-radius:var(--radius-md);}
.acc__icon{
  position:relative;flex:none;width:18px;height:18px;
  transition:transform .28s;
}
.acc__icon::before,.acc__icon::after{
  content:"";position:absolute;background:var(--primary);border-radius:2px;
}
.acc__icon::before{top:8px;left:0;width:18px;height:2px;}
.acc__icon::after{left:8px;top:0;width:2px;height:18px;}
.acc[open]{
  background:rgba(91,231,196,.05);
  border-color:var(--line-strong);
  box-shadow:inset 2px 0 0 var(--primary);
}
.acc[open] summary{color:var(--primary);}
.acc[open] .acc__icon{transform:rotate(45deg);}
.acc__a{
  padding:0 20px 18px 22px;
  font-size:15px;line-height:1.85;color:var(--text-2);max-width:68ch;
}

/* ===== 提交前准备（图文） ===== */
.prep{
  display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);
  gap:36px;align-items:center;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  overflow:hidden;box-shadow:var(--shadow);
}
.prep__media{position:relative;height:100%;min-height:280px;}
.prep__media img{width:100%;height:100%;object-fit:cover;min-height:280px;}
.prep__media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(120deg,rgba(5,7,15,.15),rgba(5,7,15,.72));
}
.prep__body{padding:36px 36px 36px 0;}
.prep__body h2{font-size:clamp(22px,2.4vw,28px);font-weight:800;line-height:1.3;}
.prep__body > p{margin-top:10px;color:var(--muted);font-size:14px;}
.prep__list{display:grid;gap:12px;margin-top:22px;}
.prep__list li{
  display:flex;gap:12px;align-items:flex-start;
  padding:14px 16px;border-radius:var(--radius-sm);
  background:var(--surface-2);border:1px solid var(--line);
  font-size:14px;color:var(--text-2);line-height:1.75;
  transition:border-color .2s,transform .2s;
}
.prep__list li:hover{border-color:var(--line-strong);transform:translateX(3px);}
.prep__list .tick{
  flex:none;width:20px;height:20px;border-radius:50%;
  display:grid;place-items:center;margin-top:2px;
  background:rgba(91,231,196,.14);color:var(--primary);font-size:11px;font-weight:700;
}

/* ===== CTA 面板 ===== */
.cta-wrap{padding:24px 0 8px;}
.cta-panel{
  position:relative;overflow:hidden;isolation:isolate;
  border-radius:var(--radius-lg);
  border:1px solid var(--line-strong);
  background:linear-gradient(120deg,rgba(17,28,49,.97),rgba(10,16,30,.92));
  padding:40px;
  display:grid;grid-template-columns:minmax(0,1fr) auto;
  gap:28px;align-items:center;
  box-shadow:var(--shadow);
}
.cta-panel::before{
  content:"";position:absolute;inset:0;z-index:-1;
  background:url(/assets/images/backpic/back-3.webp) center/cover no-repeat;
  opacity:.16;
}
.cta-panel::after{
  content:"";position:absolute;z-index:-1;
  width:520px;height:520px;right:-160px;top:-220px;border-radius:50%;
  background:radial-gradient(circle, rgba(91,231,196,.28), transparent 66%);
  filter:blur(6px);
}
.cta-panel h2{font-size:clamp(22px,2.6vw,30px);font-weight:800;line-height:1.28;}
.cta-panel p{margin-top:10px;color:var(--text-2);font-size:14px;max-width:54ch;}
.cta-panel__actions{display:flex;flex-wrap:wrap;gap:12px;}

/* ===== 跨分类链接 ===== */
.crosslinks{padding:8px 0 72px;}
.crosslinks h2{font-size:20px;font-weight:800;margin-bottom:6px;}
.crosslinks > .container > p{color:var(--muted);font-size:14px;margin-bottom:18px;}
.crosslinks__list{display:flex;flex-wrap:wrap;gap:10px;}
.chip{
  display:inline-flex;align-items:center;gap:8px;height:42px;padding:0 20px;
  border-radius:var(--radius-pill);border:1px solid var(--line);
  background:var(--surface);color:var(--text-2);font-size:14px;
  transition:border-color .2s,color .2s,background .2s,transform .2s,box-shadow .2s;
}
.chip::before{
  content:"";width:6px;height:6px;border-radius:50%;
  background:var(--primary-deep);transition:background .2s,box-shadow .2s;
}
.chip:hover{
  color:var(--text);border-color:var(--line-strong);background:rgba(91,231,196,.09);
  transform:translateY(-2px);box-shadow:0 12px 28px rgba(0,0,0,.3);
}
.chip:hover::before{background:var(--primary);box-shadow:0 0 10px var(--primary);}
.chip:focus-visible{outline:2px solid var(--primary);outline-offset:2px;}

/* ===== 页脚 ===== */
.site-footer{
  background:#04060C;
  border-top:1px solid var(--line);
  padding:56px 0 26px;
  position:relative;z-index:1;
}
.footer-grid{display:grid;grid-template-columns:minmax(0,1.5fr) repeat(3,minmax(0,1fr));gap:32px;}
.footer-brand p{font-size:14px;color:var(--muted);margin-top:16px;max-width:36ch;line-height:1.8;}
.footer-col h4{font-size:14px;font-weight:700;margin-bottom:14px;color:var(--text);letter-spacing:.02em;}
.footer-col ul{display:grid;gap:10px;}
.footer-col a{font-size:14px;color:var(--muted);transition:color .2s;}
.footer-col a:hover{color:var(--primary);}
.footer-col a:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:4px;}
.footer-col p{font-size:13px;color:var(--muted);line-height:1.85;}
.footer-bottom{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  margin-top:40px;padding-top:20px;border-top:1px solid var(--line);
  font-size:12px;color:var(--muted);
}
.footer-bottom .sep{margin:0 8px;color:rgba(255,255,255,.2);}

/* ===== 响应式 ===== */
@media (max-width:1199px){
  .container{max-width:1040px;}
  .nav__links a{padding:0 9px;font-size:14px;}
  .grid-faq{gap:24px;}
}
@media (max-width:991px){
  .nav__links{display:none;}
  .nav__burger{display:inline-flex;}
  .nav__actions .btn{display:none;}
  .nav{min-height:64px;}
  .page-hero{padding:24px 0 44px;}
  .quick-strip{grid-template-columns:minmax(0,1fr);}
  .grid-faq{grid-template-columns:minmax(0,1fr);}
  .faq-index{position:static;top:auto;}
  .faq-index ol{grid-template-columns:repeat(2,minmax(0,1fr));}
  .prep{grid-template-columns:minmax(0,1fr);}
  .prep__body{padding:0 28px 32px;}
  .prep__media{min-height:220px;}
  .prep__media img{min-height:220px;}
  .cta-panel{grid-template-columns:minmax(0,1fr);padding:32px;}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px;}
  .section{padding:56px 0;}
}
@media (max-width:767px){
  .container{padding:0 18px;}
  .topbar__note{display:none;}
  .page-hero h1{max-width:none;}
  .faq-groups{gap:36px;}
  .acc summary{font-size:15px;padding:14px 16px;}
  .acc__a{padding:0 16px 16px 18px;font-size:14px;}
}
@media (max-width:575px){
  body{font-size:15.5px;}
  .topbar__inner{min-height:34px;}
  .topbar__actions .topbar__pill{display:none;}
  .brand__mark{width:34px;height:34px;}
  .brand__text strong{font-size:15px;}
  .brand__text em{font-size:10px;letter-spacing:.08em;}
  .page-hero h1{font-size:clamp(26px,7.6vw,34px);}
  .lead{font-size:14.5px;}
  .anchors a{height:34px;padding:0 13px;font-size:12px;}
  .faq-index{padding:18px;}
  .faq-index ol{grid-template-columns:minmax(0,1fr);}
  .cta-panel{padding:24px;}
  .cta-panel__actions{width:100%;}
  .cta-panel__actions .btn{width:100%;}
  .footer-grid{grid-template-columns:minmax(0,1fr);}
  .footer-bottom{flex-direction:column;gap:8px;}
  .crosslinks{padding-bottom:56px;}
  .chip{height:40px;padding:0 16px;font-size:13px;}
}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  *,*::before,*::after{
    animation-duration:.001ms!important;
    animation-iteration-count:1!important;
    transition-duration:.001ms!important;
  }
  .btn:hover,.chip:hover,.quick-strip__item:hover,.prep__list li:hover,.anchors a:hover{transform:none!important;}
}