/* roulang page: index */
:root{
  --brand:#2ea8ff;
  --brand-soft:#7fd0ff;
  --coral:#ff4d6d;
  --mint:#34e5c8;
  --bg:#05070e;
  --bg-2:#080c16;
  --bg-3:#0b111e;
  --line:rgba(255,255,255,.09);
  --line-strong:rgba(255,255,255,.16);
  --text:#e6eeff;
  --text-soft:rgba(226,236,255,.72);
  --text-mute:rgba(226,236,255,.5);
  --glass:linear-gradient(160deg,rgba(255,255,255,.06),rgba(255,255,255,.02));
  --r-xs:10px;
  --r-card:18px;
  --r-lg:24px;
  --r-pill:999px;
  --sh-1:0 18px 40px -18px rgba(0,0,0,.85);
  --sh-2:0 0 24px rgba(46,168,255,.28);
  --sh-btn:0 8px 28px rgba(46,168,255,.35);
  --ease:cubic-bezier(.22,.8,.2,1);
  --font:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,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:1.75;
  color:var(--text-soft);
  background:
    radial-gradient(900px 620px at 6% -8%, rgba(46,168,255,.12), transparent 62%),
    radial-gradient(760px 520px at 100% 106%, rgba(46,168,255,.08), transparent 62%),
    var(--bg);
  background-attachment:fixed;
  -webkit-font-smoothing:antialiased;
}
body::after{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  opacity:.03;
  background-image:repeating-linear-gradient(0deg,rgba(255,255,255,.7) 0 1px,transparent 1px 3px);
}
img{max-width:100%;display:block}
a{color:var(--brand-soft);text-decoration:none}
a:hover{text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:3px}
h1,h2,h3,h4{color:var(--text);margin:0;letter-spacing:-.02em;font-weight:800;line-height:1.28}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--mint);outline-offset:2px;border-radius:6px}
::selection{background:rgba(46,168,255,.35);color:#fff}
::-webkit-scrollbar{width:10px;height:10px}
::-webkit-scrollbar-track{background:#070b14}
::-webkit-scrollbar-thumb{background:linear-gradient(180deg,#1f6fae,#12395c);border-radius:99px;border:2px solid #070b14}
.container{width:100%;max-width:1280px;margin:0 auto;padding:0 20px}
.section{padding:96px 0;position:relative;z-index:1}
.section-alt{background:var(--bg-2);border-top:1px solid rgba(255,255,255,.04);border-bottom:1px solid rgba(255,255,255,.04)}
.section-alt-2{background:var(--bg-3);border-top:1px solid rgba(255,255,255,.04);border-bottom:1px solid rgba(255,255,255,.04)}
.sec-head{display:flex;align-items:center;justify-content:space-between;gap:24px;margin-bottom:34px;flex-wrap:wrap}
.sec-title{font-size:clamp(24px,3vw,34px);font-weight:900;display:flex;align-items:center;gap:14px}
.sec-title::before{content:"";width:3px;height:1.1em;border-radius:99px;background:linear-gradient(180deg,var(--brand),var(--mint));box-shadow:0 0 14px rgba(46,168,255,.7)}
.link-more{font-size:14px;color:var(--brand-soft);letter-spacing:.02em;white-space:nowrap}
.link-more:hover{color:#fff;text-decoration:none;text-shadow:0 0 12px rgba(46,168,255,.6)}

/* ============ 导航 ============ */
.shell-header{position:sticky;top:12px;z-index:80;padding:0 20px}
.pill-nav{
  position:relative;
  display:flex;align-items:center;gap:16px;
  max-width:1240px;margin:0 auto;
  height:68px;padding:0 12px 0 20px;
  border-radius:var(--r-pill);
  background:rgba(8,12,22,.72);
  border:1px solid var(--line);
  box-shadow:var(--sh-1);
  backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  transition:height .24s var(--ease),background .24s var(--ease);
}
.shell-header.is-scrolled .pill-nav{height:56px;background:rgba(6,9,17,.92);border-bottom-color:var(--line-strong)}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;flex:0 0 auto}
.brand:hover{text-decoration:none}
.brand-mark{
  width:22px;height:22px;border-radius:8px;position:relative;
  background:linear-gradient(135deg,var(--brand),var(--mint));
  box-shadow:0 0 18px rgba(46,168,255,.65);
}
.brand-mark::after{content:"";position:absolute;inset:7px;border-radius:3px;background:rgba(5,7,14,.85)}
.brand-text{font-size:17px;line-height:1;letter-spacing:.01em;white-space:nowrap}
.brand-text b{font-weight:900;color:#fff}
.brand-text i{font-style:normal;font-weight:500;color:#9fd4ff;letter-spacing:.04em}
.brand-text em{font-style:normal;font-weight:700;color:rgba(226,236,255,.72);font-size:.86em;margin-left:2px}
.nav-links{display:flex;align-items:center;gap:2px;margin-left:auto}
.nav-links>a{
  position:relative;padding:10px 14px;border-radius:var(--r-pill);
  font-size:14px;color:rgba(226,236,255,.7);text-decoration:none;white-space:nowrap;
  transition:color .2s var(--ease),background .2s var(--ease);
}
.nav-links>a:hover{color:#fff;background:rgba(255,255,255,.06);text-decoration:none}
.nav-links>a.is-active{color:#fff}
.nav-links>a.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;border-radius:99px;
  background:linear-gradient(90deg,var(--brand),var(--mint));box-shadow:0 0 10px rgba(46,168,255,.9);
}
.nav-cta{
  margin-left:10px;padding:11px 18px !important;border-radius:var(--r-pill);
  font-size:14px;font-weight:700;color:#04121f !important;
  background:linear-gradient(135deg,#5cc0ff,#2ea8ff);
  box-shadow:var(--sh-btn);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease);
}
.nav-cta:hover{transform:translateY(-2px);box-shadow:0 12px 34px rgba(46,168,255,.5);text-decoration:none}
.nav-cta::after{display:none !important}
.nav-toggle{
  display:none;align-items:center;justify-content:center;
  width:44px;height:44px;margin-left:auto;padding:0;
  border-radius:var(--r-pill);border:1px solid var(--line);
  background:rgba(255,255,255,.05);color:#fff;cursor:pointer;
  transition:background .2s var(--ease);
}
.nav-toggle:hover{background:rgba(255,255,255,.1)}
.nav-toggle span{display:block;width:18px;height:2px;background:#fff;border-radius:99px;position:relative;transition:transform .24s var(--ease)}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:#fff;border-radius:99px;transition:transform .24s var(--ease)}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.nav-toggle[aria-expanded="true"] span{transform:rotate(45deg)}
.nav-toggle[aria-expanded="true"] span::before{transform:translateY(6px) rotate(-90deg)}
.nav-toggle[aria-expanded="true"] span::after{transform:translateY(-6px) rotate(-90deg);opacity:0}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 24px;border-radius:var(--r-pill);
  font-size:15px;font-weight:700;letter-spacing:.01em;
  text-decoration:none;cursor:pointer;border:1px solid transparent;
  position:relative;overflow:hidden;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease),border-color .2s var(--ease);
}
.btn:hover{text-decoration:none;transform:translateY(-2px)}
.btn:active{transform:translateY(0)}
.btn-primary{
  color:#04121f;background:linear-gradient(135deg,#67c6ff,#2ea8ff);
  box-shadow:var(--sh-btn);
}
.btn-primary:hover{box-shadow:0 14px 38px rgba(46,168,255,.55)}
.btn-primary::after{
  content:"";position:absolute;top:0;left:-120%;width:60%;height:100%;
  background:linear-gradient(100deg,transparent,rgba(255,255,255,.55),transparent);
  transform:skewX(-18deg);transition:none;
}
.btn-primary:hover::after{animation:sheen .6s var(--ease)}
@keyframes sheen{from{left:-120%}to{left:140%}}
.btn-ghost{color:#d9e8ff;background:rgba(255,255,255,.03);border-color:var(--line-strong);backdrop-filter:blur(10px)}
.btn-ghost:hover{background:rgba(255,255,255,.1);border-color:rgba(46,168,255,.55);color:#fff}
.btn:disabled,.btn[aria-disabled="true"]{opacity:.45;pointer-events:none}

/* ============ 徽章 ============ */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 11px;border-radius:var(--r-pill);
  font-size:12px;font-weight:600;letter-spacing:.04em;
  color:#dcebff;background:rgba(255,255,255,.07);border:1px solid var(--line);
  white-space:nowrap;
}
.badge::before{content:"";width:6px;height:6px;border-radius:50%;background:currentColor}
.badge-brand{color:#8ed2ff;background:rgba(46,168,255,.12);border-color:rgba(46,168,255,.34)}
.badge-coral{color:#ffa8b8;background:rgba(255,77,109,.12);border-color:rgba(255,77,109,.34)}
.badge-mint{color:#7ff0dc;background:rgba(52,229,200,.12);border-color:rgba(52,229,200,.34)}
.badge-plain{color:rgba(226,236,255,.72)}
.badge-plain::before{display:none}

/* ============ Hero ============ */
.hero{position:relative;min-height:min(88vh,760px);display:flex;align-items:center;overflow:hidden;margin-top:-80px;padding:150px 0 60px}
.hero-bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
  transform:scale(1.04);
}
.hero-bg::after{
  content:"";position:absolute;inset:0;
  background:
    linear-gradient(100deg,rgba(5,7,14,.96) 0%,rgba(5,7,14,.82) 42%,rgba(5,7,14,.42) 72%,rgba(5,7,14,.86) 100%),
    radial-gradient(120% 90% at 50% 40%,transparent 30%,rgba(5,7,14,.75) 100%);
}
.hero-inner{position:relative;z-index:2}
.hero-copy{max-width:640px}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:9px;
  padding:7px 15px;border-radius:var(--r-pill);
  font-size:12.5px;letter-spacing:.1em;color:#a9d8ff;
  background:rgba(46,168,255,.1);border:1px solid rgba(46,168,255,.3);
  margin-bottom:22px;
}
.hero-eyebrow::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--mint);box-shadow:0 0 10px var(--mint)}
.hero h1{
  font-size:clamp(34px,5vw,58px);font-weight:900;line-height:1.16;letter-spacing:-.025em;
  color:#fff;margin-bottom:18px;
  text-shadow:0 12px 40px rgba(0,0,0,.6);
}
.hero h1 .hl{
  background:linear-gradient(120deg,#8fd6ff,#2ea8ff 55%,#34e5c8);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-sub{font-size:17px;line-height:1.8;color:rgba(226,236,255,.78);max-width:560px;margin-bottom:30px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:44px}
.hero-metrics{
  display:flex;flex-wrap:wrap;gap:0;align-items:stretch;
  border-top:1px solid var(--line);padding-top:22px;max-width:640px;
}
.hero-metrics li{padding:0 26px;border-left:1px solid var(--line);min-width:118px}
.hero-metrics li:first-child{border-left:0;padding-left:0}
.hero-metrics strong{display:block;font-size:26px;font-weight:900;color:#fff;font-variant-numeric:tabular-nums;letter-spacing:-.02em;line-height:1.2}
.hero-metrics span{display:block;font-size:12.5px;letter-spacing:.08em;color:var(--text-mute);margin-top:2px}

/* ============ 横滑轨道 ============ */
.track-ctrl{display:flex;gap:10px}
.arrow{
  width:44px;height:44px;border-radius:50%;cursor:pointer;
  border:1px solid var(--line-strong);background:rgba(255,255,255,.04);
  color:#d9e8ff;font-size:20px;line-height:1;
  display:inline-flex;align-items:center;justify-content:center;
  transition:background .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease);
}
.arrow:hover{background:rgba(46,168,255,.18);border-color:rgba(46,168,255,.6);transform:translateY(-2px);color:#fff}
.track-wrap{position:relative}
.track-wrap::before,.track-wrap::after{
  content:"";position:absolute;top:0;bottom:8px;width:42px;z-index:3;pointer-events:none;
}
.track-wrap::before{left:-4px;background:linear-gradient(90deg,var(--bg),transparent)}
.track-wrap::after{right:-4px;background:linear-gradient(270deg,var(--bg),transparent)}
.section-alt .track-wrap::before{background:linear-gradient(90deg,var(--bg-2),transparent)}
.section-alt .track-wrap::after{background:linear-gradient(270deg,var(--bg-2),transparent)}
.track{
  display:flex;gap:20px;
  overflow-x:auto;overflow-y:hidden;
  scroll-snap-type:x mandatory;
  padding:6px 4px 18px;
  scrollbar-width:none;-ms-overflow-style:none;
  scroll-behavior:smooth;
}
.track::-webkit-scrollbar{display:none}
.track>*{scroll-snap-align:start;flex:0 0 auto}

/* ============ 海报卡 ============ */
.poster-card{
  width:240px;display:block;text-decoration:none;
  border-radius:var(--r-card);overflow:hidden;
  transition:transform .32s var(--ease);
}
.poster-card:hover{text-decoration:none;transform:translateY(-6px)}
.poster-media{
  position:relative;aspect-ratio:2/3;border-radius:var(--r-card);overflow:hidden;
  border:1px solid var(--line);
  background:linear-gradient(150deg,#0d1524,#070b14);
  box-shadow:var(--sh-1);
  transition:border-color .32s var(--ease),box-shadow .32s var(--ease);
}
.poster-card:hover .poster-media{border-color:rgba(46,168,255,.7);box-shadow:var(--sh-1),var(--sh-2)}
.poster-media img{width:100%;height:100%;object-fit:cover;opacity:0;transition:transform .6s var(--ease),opacity .6s var(--ease)}
.poster-card:hover .poster-media img{transform:scale(1.05)}
.poster-media img.is-loaded{opacity:1}
.poster-media::after{
  content:"";position:absolute;inset:auto 0 0 0;height:62%;
  background:linear-gradient(to top,rgba(4,7,14,.92),rgba(4,7,14,.35) 55%,transparent);
  pointer-events:none;
}
.poster-media .badge{position:absolute;z-index:2;top:10px;left:10px}
.poster-media .poster-rate{top:auto;bottom:10px;right:10px;left:auto;background:rgba(6,12,20,.78)}
.poster-card h3{
  font-size:16px;font-weight:700;color:#eaf2ff;margin:12px 0 4px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.poster-card p{font-size:13px;color:var(--text-mute);letter-spacing:.02em}
.poster-card-compact{width:196px}

/* ============ 8/4 分区 ============ */
.feature-split{align-items:stretch}
.poster-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.poster-grid .poster-card{width:100%}
.poster-grid .poster-media{aspect-ratio:16/10}
.rank-list{
  border-radius:var(--r-card);
  background:var(--glass);border:1px solid var(--line);
  backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  overflow:hidden;height:100%;
}
.rank-head{padding:18px 20px 12px;border-bottom:1px solid var(--line)}
.rank-head h3{font-size:16px;letter-spacing:.02em}
.rank-head p{font-size:12.5px;color:var(--text-mute);margin-top:4px}
.rank-item{
  display:grid;grid-template-columns:auto 52px 1fr auto;align-items:center;gap:14px;
  padding:14px 20px;border-bottom:1px solid rgba(255,255,255,.06);
  text-decoration:none;transition:background .24s var(--ease);
}
.rank-item:last-child{border-bottom:0}
.rank-item:hover{background:rgba(46,168,255,.09);text-decoration:none}
.rank-num{
  font-size:32px;font-weight:900;line-height:1;font-variant-numeric:tabular-nums;
  color:transparent;-webkit-text-stroke:1.4px rgba(46,168,255,.5);
  letter-spacing:-.04em;transition:opacity .24s var(--ease);
}
.rank-item:hover .rank-num{-webkit-text-stroke-color:rgba(52,229,200,.85)}
.rank-item img{width:52px;height:52px;border-radius:12px;object-fit:cover;border:1px solid var(--line)}
.rank-body h3{font-size:14.5px;font-weight:700;color:#e7efff;display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden}
.rank-body span{display:block;font-size:12px;color:var(--text-mute);margin-top:3px}
.rank-arrow{color:var(--brand-soft);font-size:16px;opacity:0;transform:translateX(-8px);transition:opacity .24s var(--ease),transform .24s var(--ease)}
.rank-item:hover .rank-arrow{opacity:1;transform:translateX(0)}

/* ============ 不对称图文区 ============ */
.evidence{display:grid;grid-template-columns:1.45fr 1fr;gap:34px;align-items:center}
.evidence-media{position:relative;border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line);box-shadow:var(--sh-1);aspect-ratio:16/9;background:#0a1120}
.evidence-media img{width:100%;height:100%;object-fit:cover;opacity:0;transition:opacity .6s var(--ease)}
.evidence-media img.is-loaded{opacity:1}
.evidence-media::after{content:"";position:absolute;inset:0;background:linear-gradient(200deg,transparent 40%,rgba(5,7,14,.7))}
.evidence-media .badge{position:absolute;z-index:2;left:16px;top:16px}
.evidence-list li{
  display:grid;grid-template-columns:auto 1fr;gap:14px;
  padding:16px 0;border-bottom:1px dashed rgba(255,255,255,.1);
}
.evidence-list li:last-child{border-bottom:0}
.evidence-list .dot{
  width:26px;height:26px;border-radius:9px;margin-top:3px;
  display:inline-flex;align-items:center;justify-content:center;
  font-size:12px;font-weight:800;color:#04121f;
  background:linear-gradient(135deg,#7ff0dc,#34e5c8);
}
.evidence-list h3{font-size:16px;margin-bottom:4px}
.evidence-list p{font-size:14px;color:var(--text-soft)}

/* ============ 片单分区 ============ */
.zone{padding:72px 0}
.zone+.zone{border-top:1px solid rgba(255,255,255,.05)}
.zone-body{display:grid;grid-template-columns:280px minmax(0,1fr);gap:34px;align-items:center;grid-template-areas:"head track"}
.zone.reverse .zone-body{grid-template-columns:minmax(0,1fr) 280px;grid-template-areas:"track head"}
.zone-head{grid-area:head}
.zone.reverse .zone-head{text-align:right}
.zone-index{
  display:inline-block;font-size:12px;letter-spacing:.16em;color:var(--text-mute);
  font-variant-numeric:tabular-nums;margin-bottom:10px;
}
.zone-title{font-size:clamp(20px,2.4vw,26px);font-weight:900;margin-bottom:10px}
.zone-lead{font-size:14px;color:var(--text-soft);margin-bottom:16px;line-height:1.7}
.zone-head .link-more{display:inline-block}
.zone-track{grid-area:track;min-width:0}
.zone-blue .zone-title::after,.zone-mint .zone-title::after,.zone-coral .zone-title::after,.zone-gray .zone-title::after{
  content:"";display:block;width:38px;height:3px;border-radius:99px;margin-top:10px;
}
.zone.reverse .zone-title::after{margin-left:auto}
.zone-blue .zone-title::after{background:var(--brand)}
.zone-mint .zone-title::after{background:var(--mint)}
.zone-coral .zone-title::after{background:var(--coral)}
.zone-gray .zone-title::after{background:#8ea6c8}
.zone-blue .poster-card:hover .poster-media{border-color:rgba(46,168,255,.7)}
.zone-mint .poster-card:hover .poster-media{border-color:rgba(52,229,200,.7);box-shadow:var(--sh-1),0 0 24px rgba(52,229,200,.25)}
.zone-coral .poster-card:hover .poster-media{border-color:rgba(255,77,109,.7);box-shadow:var(--sh-1),0 0 24px rgba(255,77,109,.22)}
.zone-gray .poster-card:hover .poster-media{border-color:rgba(142,166,200,.7);box-shadow:var(--sh-1),0 0 24px rgba(142,166,200,.2)}

/* ============ 最新信息 ============ */
.filter-pills{display:flex;gap:8px;flex-wrap:wrap}
.pill{
  padding:8px 16px;border-radius:var(--r-pill);font-size:13px;
  color:rgba(226,236,255,.72);background:rgba(255,255,255,.04);
  border:1px solid var(--line);text-decoration:none;white-space:nowrap;
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.pill:hover{color:#fff;background:rgba(255,255,255,.1);text-decoration:none}
.pill.is-on{color:#04121f;background:linear-gradient(135deg,#67c6ff,#2ea8ff);border-color:transparent;font-weight:700;box-shadow:0 6px 20px rgba(46,168,255,.32)}
.news-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
.news-card{
  display:grid;grid-template-columns:38% 1fr;
  border-radius:var(--r-card);overflow:hidden;text-decoration:none;
  background:var(--glass);border:1px solid var(--line);
  box-shadow:var(--sh-1);
  transition:transform .32s var(--ease),border-color .32s var(--ease),box-shadow .32s var(--ease);
}
.news-card:hover{transform:translateY(-4px);border-color:rgba(46,168,255,.55);box-shadow:var(--sh-1),var(--sh-2);text-decoration:none}
.news-card.is-lead{grid-column:span 2;grid-template-columns:44% 1fr}
.news-media{background:linear-gradient(150deg,#0d1524,#070b14);overflow:hidden;min-height:150px}
.news-media img{width:100%;height:100%;object-fit:cover;aspect-ratio:16/9;opacity:0;transition:opacity .6s var(--ease),transform .6s var(--ease)}
.news-card:hover .news-media img{transform:scale(1.04)}
.news-media img.is-loaded{opacity:1}
.news-body{padding:18px 20px;display:flex;flex-direction:column;gap:10px;min-width:0}
.news-body h3{
  font-size:17px;font-weight:700;color:#eaf2ff;line-height:1.5;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-body>p{
  font-size:13.5px;color:var(--text-soft);line-height:1.7;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:10px;
  font-size:12.5px;color:var(--text-mute);letter-spacing:.04em;font-variant-numeric:tabular-nums;
  padding-top:8px;border-top:1px solid rgba(255,255,255,.06);
}
.news-arrow{color:var(--brand-soft)}
.news-card:hover .news-arrow{text-shadow:0 0 12px rgba(46,168,255,.7)}
.empty-state{
  min-height:240px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;
  border-radius:var(--r-lg);border:1px dashed var(--line-strong);background:rgba(255,255,255,.02);
  padding:40px 24px;text-align:center;
}
.empty-state svg{width:48px;height:48px;stroke:rgba(46,168,255,.65);fill:none;stroke-width:1.4}
.empty-title{font-size:16px;color:#e3edff;font-weight:700}
.empty-sub{font-size:13.5px;color:var(--text-mute)}
.empty-state .btn{margin-top:8px}

/* ============ FAQ ============ */
.faq-wrap{max-width:900px;margin:0 auto}
.faq-item{
  position:relative;border-radius:var(--r-card);overflow:hidden;
  background:var(--glass);border:1px solid var(--line);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  margin-bottom:14px;transition:border-color .24s var(--ease);
}
.faq-item::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;
  background:linear-gradient(180deg,var(--brand),var(--mint));
  box-shadow:0 0 16px rgba(46,168,255,.8);
  opacity:0;transition:opacity .24s var(--ease);
}
.faq-item.is-open{border-color:rgba(46,168,255,.42)}
.faq-item.is-open::before{opacity:1}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 22px;background:none;border:0;cursor:pointer;text-align:left;
  font-size:16px;font-weight:700;color:#e9f1ff;line-height:1.55;
  transition:color .2s var(--ease);
}
.faq-q:hover{color:#fff}
.faq-sign{
  flex:0 0 auto;width:28px;height:28px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  border:1px solid rgba(46,168,255,.4);color:#8ed2ff;font-size:17px;line-height:1;
  transition:transform .3s var(--ease),background .24s var(--ease);
}
.faq-item.is-open .faq-sign{transform:rotate(45deg);background:rgba(46,168,255,.16)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .34s var(--ease)}
.faq-a p{padding:0 22px 22px;font-size:14.5px;line-height:1.85;color:var(--text-soft)}

/* ============ CTA ============ */
.cta-banner{
  position:relative;overflow:hidden;
  border-radius:var(--r-lg);
  border:1px solid var(--line-strong);
  background:linear-gradient(150deg,rgba(46,168,255,.14),rgba(255,255,255,.02) 46%,rgba(52,229,200,.08));
  backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  box-shadow:var(--sh-1);
  display:grid;grid-template-columns:1.35fr 1fr;gap:34px;align-items:center;
  padding:48px 46px;
}
.cta-banner::before{
  content:"";position:absolute;left:-90px;top:-110px;width:340px;height:340px;border-radius:50%;
  background:radial-gradient(circle,rgba(46,168,255,.35),transparent 68%);
  pointer-events:none;
}
.cta-copy{position:relative;z-index:2}
.cta-copy h2{font-size:clamp(22px,2.8vw,30px);font-weight:900;margin-bottom:12px}
.cta-copy p{font-size:15px;color:rgba(226,236,255,.76);max-width:520px}
.cta-form{position:relative;z-index:2;display:flex;flex-direction:column;gap:12px}
.field label{display:block;font-size:12.5px;letter-spacing:.08em;color:var(--text-mute);margin-bottom:7px}
.field input{
  width:100%;height:50px;padding:0 16px;border-radius:14px;
  background:rgba(255,255,255,.05);border:1px solid var(--line-strong);
  color:#e9f1ff;font-size:15px;font-family:inherit;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease);
}
.field input::placeholder{color:rgba(226,236,255,.38)}
.field input:focus{outline:none;border-color:rgba(52,229,200,.75);box-shadow:0 0 0 3px rgba(46,168,255,.22);background:rgba(255,255,255,.07)}
.field.is-error input{border-color:var(--coral);box-shadow:0 0 0 3px rgba(255,77,109,.18)}
.field .hint{font-size:12px;color:var(--text-mute);margin-top:7px}
.field.is-error .hint{color:#ffa8b8}
.cta-form .btn{width:100%}

/* ============ 页脚 ============ */
.site-footer{position:relative;z-index:1;background:#04060c;border-top:1px solid transparent;padding:64px 0 0}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(46,168,255,.6),rgba(52,229,200,.4),transparent);
}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:34px;padding-bottom:44px}
.foot-brand p{font-size:13.5px;color:var(--text-mute);line-height:1.85;margin-top:14px;max-width:340px}
.foot-col h3{font-size:14px;letter-spacing:.08em;color:#dbe7ff;margin-bottom:16px;font-weight:700}
.foot-col li{margin-bottom:11px}
.foot-col a{font-size:13.5px;color:var(--text-mute);text-decoration:none;transition:color .2s var(--ease),padding-left .2s var(--ease)}
.foot-col a:hover{color:var(--brand-soft);text-decoration:none;padding-left:4px}
.foot-col .contact-line{font-size:13.5px;color:var(--text-mute);font-variant-numeric:tabular-nums}
.foot-bottom{
  border-top:1px solid rgba(255,255,255,.07);
  padding:20px 0 26px;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:12.5px;color:rgba(226,236,255,.42);letter-spacing:.03em;
}
.foot-bottom span{font-variant-numeric:tabular-nums}

/* ============ 响应式 ============ */
@media (max-width:1440px){
  .container{max-width:1280px}
}
@media (max-width:1023px){
  .section{padding:72px 0}
  .zone{padding:56px 0}
  .hero{min-height:auto;padding:130px 0 56px}
  .hero-metrics li{padding:0 18px;min-width:100px}
  .hero-metrics strong{font-size:22px}
  .poster-card{width:216px}
  .poster-card-compact{width:190px}
  .poster-grid{grid-template-columns:repeat(2,1fr)}
  .zone-body,.zone.reverse .zone-body{grid-template-columns:1fr;grid-template-areas:"head" "track";gap:22px}
  .zone.reverse .zone-head{text-align:left}
  .zone.reverse .zone-title::after{margin-left:0}
  .evidence{grid-template-columns:1fr;gap:26px}
  .cta-banner{grid-template-columns:1fr;padding:40px 32px}
  .foot-grid{grid-template-columns:1fr 1fr;gap:28px}
  .rank-item{grid-template-columns:auto 46px 1fr auto;gap:12px;padding:13px 16px}
}
@media (max-width:900px){
  .nav-toggle{display:inline-flex}
  .nav-links{
    position:absolute;top:calc(100% + 10px);left:0;right:0;
    flex-direction:column;align-items:stretch;gap:0;margin-left:0;
    padding:10px;border-radius:22px;
    background:rgba(8,12,22,.97);border:1px solid var(--line);
    box-shadow:0 24px 50px -20px rgba(0,0,0,.9);
    display:none;max-height:min(72vh,560px);overflow-y:auto;
  }
  .nav-links.is-open{display:flex}
  .nav-links>a{padding:14px 16px;border-radius:12px;border-bottom:1px solid rgba(255,255,255,.06);font-size:15px}
  .nav-links>a:last-child{border-bottom:0}
  .nav-links>a.is-active::after{display:none}
  .nav-links>a.is-active{background:rgba(46,168,255,.14);color:#fff}
  .nav-cta{margin:10px 0 0;text-align:center;justify-content:center}
  .shell-header{padding:0 12px}
  .pill-nav{padding:0 10px 0 16px}
}
@media (max-width:767px){
  body::after{display:none}
  .section{padding:56px 0}
  .zone{padding:46px 0}
  .container{padding:0 16px}
  .brand-text{font-size:15px}
  .hero{margin-top:-72px;padding:118px 0 48px}
  .hero h1{font-size:clamp(30px,8vw,40px)}
  .hero-sub{font-size:15.5px}
  .hero-actions{gap:10px}
  .hero-actions .btn{flex:1 1 100%}
  .hero-metrics{display:grid;grid-template-columns:1fr 1fr;gap:16px 0}
  .hero-metrics li{border-left:0;padding:0 14px 0 0;min-width:0}
  .hero-metrics li:nth-child(odd){border-right:1px solid var(--line)}
  .poster-card{width:158px}
  .poster-card-compact{width:158px}
  .poster-card h3{font-size:14.5px}
  .poster-grid{grid-template-columns:1fr;gap:14px}
  .poster-grid .poster-media{aspect-ratio:16/10}
  .rank-num{font-size:26px}
  .rank-item{grid-template-columns:auto 1fr auto;gap:10px}
  .rank-item img{display:none}
  .news-grid{grid-template-columns:1fr}
  .news-card,.news-card.is-lead{grid-column:auto;grid-template-columns:1fr}
  .news-media{min-height:0}
  .news-media img{aspect-ratio:16/9}
  .cta-banner{padding:32px 22px;border-radius:20px}
  .cta-form .btn{width:100%}
  .foot-grid{grid-template-columns:1fr;gap:26px;padding-bottom:34px}
  .faq-q{padding:17px 18px;font-size:15px}
  .faq-a p{padding:0 18px 18px}
  .rank-list,.faq-item,.cta-banner{backdrop-filter:none;-webkit-backdrop-filter:none;background:rgba(12,18,32,.86)}
  .pill-nav{backdrop-filter:none;-webkit-backdrop-filter:none;background:rgba(8,12,22,.96)}
}
@media (max-width:520px){
  .sec-title{font-size:22px}
  .hero-metrics strong{font-size:20px}
  .hero-metrics span{font-size:11.5px}
  .track{gap:14px}
  .zone-index{font-size:11px}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important;scroll-behavior:auto !important}
}

/* roulang page: article */
:root{
  --bg:#05070e;
  --bg-2:#080c16;
  --bg-3:#0b111e;
  --primary:#2ea8ff;
  --primary-soft:rgba(46,168,255,.16);
  --accent:#ff4d6d;
  --mint:#34e5c8;
  --link:#7fd0ff;
  --text:#e2ecff;
  --text-soft:rgba(226,236,255,.72);
  --text-mute:rgba(226,236,255,.46);
  --border:rgba(255,255,255,.09);
  --border-strong:rgba(255,255,255,.16);
  --glass:linear-gradient(160deg,rgba(255,255,255,.06),rgba(255,255,255,.02));
  --r-s:10px;
  --r-m:18px;
  --r-l:24px;
  --shadow-1:0 18px 40px -18px rgba(0,0,0,.85);
  --shadow-glow:0 0 24px rgba(46,168,255,.28);
  --ease:cubic-bezier(.22,.8,.2,1);
  --gap:24px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.75;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:0;
  pointer-events:none;
  background:
    radial-gradient(circle at 8% 6%,rgba(20,42,86,.55),transparent 52%),
    radial-gradient(circle at 92% 84%,rgba(46,168,255,.16),transparent 46%);
}
body::after{
  content:"";
  position:fixed;
  inset:0;
  z-index:0;
  pointer-events:none;
  opacity:.035;
  background-image:repeating-linear-gradient(0deg,rgba(255,255,255,.9) 0 1px,transparent 1px 3px);
}
img{max-width:100%;display:block;height:auto}
a{color:var(--link);text-decoration:none;transition:color .2s var(--ease),box-shadow .2s var(--ease)}
a:hover{color:#a6e2ff;text-decoration:underline;text-underline-offset:3px}
button,input{font:inherit;color:inherit}
button{cursor:pointer;border:0;background:none}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.02em;line-height:1.25}
p{margin:0}
::selection{background:rgba(46,168,255,.32);color:#fff}
::-webkit-scrollbar{width:10px;height:10px}
::-webkit-scrollbar-track{background:#070a12}
::-webkit-scrollbar-thumb{background:linear-gradient(180deg,rgba(46,168,255,.6),rgba(46,168,255,.2));border-radius:999px}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px}

.container{
  width:100%;
  max-width:1280px;
  margin:0 auto;
  padding:0 24px;
  position:relative;
  z-index:1;
}
.narrow{max-width:900px}
.section{padding:96px 0;position:relative;z-index:1}
.section--alt{background:var(--bg-2);border-top:1px solid var(--border);border-bottom:1px solid var(--border)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:32px;flex-wrap:wrap}
.section-head h2{font-size:clamp(24px,3vw,36px);padding-left:16px;position:relative}
.section-head h2::before{
  content:"";position:absolute;left:0;top:14%;width:3px;height:72%;border-radius:3px;
  background:linear-gradient(180deg,var(--mint),var(--primary));box-shadow:0 0 14px rgba(46,168,255,.7);
}
.section-head .lead{color:var(--text-soft);font-size:15px;margin-top:8px;padding-left:16px}

/* ---------- 胶囊导航 ---------- */
.shell-header{
  position:sticky;
  top:12px;
  z-index:60;
  padding:0 20px;
}
.pill-nav{
  max-width:1280px;
  margin:0 auto;
  height:68px;
  display:flex;
  align-items:center;
  gap:20px;
  padding:0 20px;
  border:1px solid var(--border);
  border-radius:999px;
  background:linear-gradient(160deg,rgba(255,255,255,.07),rgba(255,255,255,.02));
  backdrop-filter:blur(18px) saturate(140%);
  box-shadow:0 18px 40px -22px rgba(0,0,0,.9);
  transition:height .3s var(--ease),background .3s var(--ease),box-shadow .3s var(--ease);
}
.shell-header.is-compact .pill-nav{
  height:56px;
  background:rgba(10,15,26,.92);
  border-bottom-color:var(--border-strong);
}
.brand{display:flex;align-items:center;gap:12px;color:var(--text);text-decoration:none;flex:0 0 auto}
.brand:hover{text-decoration:none;color:var(--text)}
.brand-mark{
  width:30px;height:30px;border-radius:9px;
  background:linear-gradient(140deg,var(--primary),#1b6fd0 60%,var(--mint));
  box-shadow:0 0 18px rgba(46,168,255,.6);
  position:relative;
}
.brand-mark::after{
  content:"";position:absolute;inset:8px;border-radius:4px;background:rgba(5,7,14,.78);
}
.brand-text{display:flex;align-items:baseline;gap:3px;font-size:17px;letter-spacing:-.01em}
.brand-text b{font-weight:800}
.brand-text i{font-style:normal;font-weight:400;color:var(--link);letter-spacing:.02em}
.brand-text em{font-style:normal;font-weight:600;color:var(--text-soft);font-size:14px}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto;flex-wrap:nowrap}
.nav-links > a{
  position:relative;
  padding:9px 14px;
  border-radius:999px;
  font-size:14.5px;
  color:var(--text-soft);
  text-decoration:none;
  white-space:nowrap;
  transition:color .2s var(--ease),background .2s var(--ease);
}
.nav-links > a:hover{color:var(--text);background:rgba(255,255,255,.06);text-decoration:none}
.nav-links > a.is-active{color:var(--text)}
.nav-links > a.is-active::after{
  content:"";position:absolute;left:16px;right:16px;bottom:2px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--mint),var(--primary));box-shadow:0 0 12px rgba(52,229,200,.7);
}
.nav-cta{
  margin-left:10px;
  padding:11px 20px !important;
  border-radius:999px !important;
  color:#04121f !important;
  font-weight:700;
  background:linear-gradient(120deg,#4db6ff,#2ea8ff 55%,#1e8ae4);
  box-shadow:0 8px 28px rgba(46,168,255,.35);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease);
}
.nav-cta:hover{transform:translateY(-2px);background:linear-gradient(120deg,#4db6ff,#2ea8ff 55%,#1e8ae4);box-shadow:0 12px 34px rgba(46,168,255,.5)}
.nav-toggle{
  display:none;
  margin-left:auto;
  width:44px;height:44px;border-radius:12px;
  border:1px solid var(--border);
  background:rgba(255,255,255,.05);
  position:relative;
}
.nav-toggle span,
.nav-toggle span::before,
.nav-toggle span::after{
  position:absolute;left:50%;width:18px;height:2px;border-radius:2px;background:var(--text);
  transform:translateX(-50%);
  transition:transform .25s var(--ease),opacity .25s var(--ease);
}
.nav-toggle span{top:21px}
.nav-toggle span::before{content:"";top:-6px;left:0;transform:none}
.nav-toggle span::after{content:"";top:6px;left:0;transform:none}
.nav-toggle[aria-expanded="true"] span{background:transparent}
.nav-toggle[aria-expanded="true"] span::before{transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span::after{transform:translateY(-6px) rotate(-45deg)}

/* ---------- 文章头 ---------- */
.article-hero{
  padding:56px 0 8px;
  position:relative;
  z-index:1;
}
.crumb{
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
  font-size:12px;letter-spacing:.08em;color:var(--text-mute);margin-bottom:18px;
}
.crumb a{color:var(--text-mute)}
.crumb a:hover{color:var(--link)}
.crumb .sep{opacity:.5}
.crumb-current{
  display:inline-block;max-width:320px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
  vertical-align:bottom;color:var(--text-soft);
}
.article-hero h1{
  font-size:clamp(28px,4vw,48px);
  line-height:1.2;
  max-width:900px;
  letter-spacing:-.025em;
}
.meta-row{
  display:flex;align-items:center;gap:12px;flex-wrap:wrap;
  margin-top:20px;font-size:13px;color:var(--text-mute);
}
.meta-row .dot{width:4px;height:4px;border-radius:50%;background:rgba(226,236,255,.32)}
.badge{
  display:inline-flex;align-items:center;gap:7px;
  padding:5px 13px;border-radius:999px;
  font-size:12px;letter-spacing:.02em;
  border:1px solid var(--border-strong);
  background:rgba(255,255,255,.05);
  color:var(--text-soft);
}
.badge::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--primary);box-shadow:0 0 8px rgba(46,168,255,.8)}
.badge--hot::before{background:var(--accent);box-shadow:0 0 8px rgba(255,77,109,.8)}
.badge--score::before{background:var(--mint);box-shadow:0 0 8px rgba(52,229,200,.8)}
.cover-figure{
  margin:32px 0 0;
  border-radius:20px;
  overflow:hidden;
  border:1px solid var(--border);
  box-shadow:var(--shadow-1);
  position:relative;
  aspect-ratio:16/9;
  background:linear-gradient(140deg,#0d1626,#05070e);
}
.cover-figure img{width:100%;height:100%;object-fit:cover}

/* ---------- 正文 + 侧栏 ---------- */
.layout{
  display:grid;
  grid-template-columns:minmax(0,2fr) minmax(0,1fr);
  gap:48px;
  align-items:start;
  padding:64px 0 0;
}
.article-body{
  max-width:780px;
  font-size:16px;
  line-height:1.9;
  color:var(--text-soft);
}
.article-body > * + *{margin-top:1.15em}
.article-body h2{
  font-size:24px;color:var(--text);
  margin-top:40px;padding-bottom:12px;
  border-bottom:1px solid var(--border);
  position:relative;
}
.article-body h2::after{
  content:"";position:absolute;left:0;bottom:-1px;width:64px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--mint),var(--primary));box-shadow:0 0 12px rgba(46,168,255,.6);
}
.article-body h3{font-size:19px;color:var(--text);margin-top:30px}
.article-body p{color:var(--text-soft)}
.article-body ul,.article-body ol{padding-left:4px}
.article-body ul li,.article-body ol li{position:relative;padding-left:20px;margin:8px 0;color:var(--text-soft)}
.article-body ul li::before{
  content:"";position:absolute;left:2px;top:.72em;width:7px;height:7px;border-radius:2px;
  background:var(--mint);box-shadow:0 0 10px rgba(52,229,200,.6);
}
.article-body ol{counter-reset:it}
.article-body ol li{counter-increment:it}
.article-body ol li::before{
  content:counter(it);position:absolute;left:0;top:0;color:var(--mint);font-weight:700;font-size:14px;
}
.article-body blockquote{
  margin:28px 0;
  padding:18px 22px;
  border-left:3px solid var(--primary);
  background:linear-gradient(160deg,rgba(255,255,255,.06),rgba(255,255,255,.02));
  border-radius:0 var(--r-m) var(--r-m) 0;
  color:var(--text-soft);
  box-shadow:0 0 22px rgba(46,168,255,.16);
}
.article-body img{border-radius:14px;margin:26px auto;box-shadow:var(--shadow-1)}
.article-body figure{margin:26px 0}
.article-body figcaption{font-size:13px;text-align:center;color:var(--text-mute);margin-top:10px}
.article-body code{
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  font-size:14px;padding:2px 6px;border-radius:6px;
  background:rgba(46,168,255,.12);color:#bfe4ff;
}
.article-body pre{
  background:#070b14;border:1px solid var(--border);border-radius:var(--r-m);
  padding:18px 20px;overflow:auto;
}
.article-body pre code{background:none;padding:0;color:#cfe8ff}
.article-body table{
  width:100%;border-collapse:separate;border-spacing:0;
  border:1px solid var(--border);border-radius:var(--r-m);overflow:hidden;
  font-size:14.5px;margin:26px 0;
}
.article-body thead th{background:rgba(46,168,255,.12);color:var(--text);text-align:left;font-weight:700}
.article-body th,.article-body td{padding:12px 16px;border-bottom:1px solid var(--border)}
.article-body tbody tr:nth-child(even){background:rgba(255,255,255,.025)}
.article-body tbody tr:last-child td{border-bottom:0}
.article-body a{color:var(--link);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px}
.article-body a:hover{text-decoration-color:transparent;box-shadow:0 1px 0 rgba(127,208,255,.6)}

/* 侧栏 */
.sidebar{
  position:sticky;
  top:100px;
  display:flex;
  flex-direction:column;
  gap:20px;
}
.side-card{
  border:1px solid var(--border);
  border-radius:var(--r-m);
  background:linear-gradient(160deg,rgba(255,255,255,.06),rgba(255,255,255,.02));
  backdrop-filter:blur(16px) saturate(140%);
  padding:20px;
  box-shadow:var(--shadow-1);
}
.side-card h3{
  font-size:13px;letter-spacing:.14em;color:var(--text-mute);
  text-transform:uppercase;font-weight:700;margin-bottom:14px;
}
.side-toc a{
  display:flex;align-items:center;gap:10px;
  padding:9px 10px;border-radius:10px;font-size:14.5px;color:var(--text-soft);
}
.side-toc a::before{content:"";width:3px;height:14px;border-radius:3px;background:rgba(226,236,255,.22)}
.side-toc a:hover,.side-toc a:focus-visible{background:rgba(255,255,255,.06);color:var(--text);text-decoration:none}
.side-toc a:hover::before{background:var(--mint);box-shadow:0 0 10px rgba(52,229,200,.7)}
.side-list li + li{border-top:1px solid var(--border)}
.side-list a{
  display:flex;gap:12px;align-items:flex-start;
  padding:12px 0;font-size:14.5px;color:var(--text-soft);
}
.side-list a:hover{color:var(--text);text-decoration:none}
.side-list .idx{
  flex:0 0 auto;font-size:12px;font-variant-numeric:tabular-nums;
  color:var(--mint);letter-spacing:.06em;padding-top:2px;
}
.side-list .txt{display:block;overflow:hidden;text-overflow:ellipsis;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical}

/* 文末组件 */
.tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:40px}
.footer-rail{
  display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:48px;
}
.pn-card{
  display:block;padding:20px;border-radius:var(--r-m);
  border:1px solid var(--border);
  background:linear-gradient(160deg,rgba(255,255,255,.06),rgba(255,255,255,.02));
  color:var(--text-soft);text-decoration:none;box-shadow:var(--shadow-1);
  transition:transform .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.pn-card:hover{transform:translateY(-4px);border-color:rgba(46,168,255,.45);box-shadow:var(--shadow-1),var(--shadow-glow);text-decoration:none;color:var(--text)}
.pn-card small{display:block;font-size:12px;letter-spacing:.12em;color:var(--text-mute);margin-bottom:8px}
.pn-card strong{display:block;font-size:15.5px;color:var(--text);overflow:hidden;text-overflow:ellipsis;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical}

/* 横滑轨道 */
.rail-wrap{position:relative}
.rail{
  display:flex;gap:20px;
  overflow-x:auto;
  scroll-snap-type:x mandatory;
  padding:6px 4px 18px;
  scrollbar-width:none;
}
.rail::-webkit-scrollbar{display:none}
.rail::after{content:"";flex:0 0 1px}
.poster{
  scroll-snap-align:start;
  flex:0 0 240px;
  border-radius:var(--r-m);
  overflow:hidden;
  border:1px solid var(--border);
  background:var(--bg-3);
  box-shadow:var(--shadow-1);
  transition:transform .32s var(--ease),border-color .32s var(--ease),box-shadow .32s var(--ease);
}
.poster:hover,.poster:focus-within{transform:translateY(-6px);border-color:rgba(46,168,255,.5);box-shadow:var(--shadow-1),var(--shadow-glow)}
.poster .thumb{position:relative;aspect-ratio:2/3;overflow:hidden;background:linear-gradient(140deg,#0e1728,#05070e)}
.poster .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .6s var(--ease)}
.poster:hover .thumb img{transform:scale(1.05)}
.poster .thumb .tag{
  position:absolute;left:10px;top:10px;
  padding:4px 10px;border-radius:999px;font-size:11.5px;
  background:rgba(5,7,14,.7);border:1px solid var(--border-strong);color:var(--text);
  backdrop-filter:blur(8px);
}
.poster .thumb .score{
  position:absolute;right:10px;bottom:10px;
  padding:3px 9px;border-radius:999px;font-size:12px;font-variant-numeric:tabular-nums;
  color:#05201b;background:var(--mint);font-weight:700;
}
.poster .cap{padding:14px;background:linear-gradient(180deg,rgba(11,17,30,.2),rgba(11,17,30,.95))}
.poster .cap strong{display:block;font-size:15px;color:var(--text);overflow:hidden;text-overflow:ellipsis;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical}
.poster .cap span{display:block;margin-top:6px;font-size:12.5px;color:var(--text-mute)}

/* FAQ */
.faq-list{max-width:900px;margin:0 auto;display:flex;flex-direction:column;gap:14px}
.faq-item{
  border:1px solid var(--border);
  border-radius:var(--r-m);
  background:linear-gradient(160deg,rgba(255,255,255,.06),rgba(255,255,255,.02));
  backdrop-filter:blur(16px) saturate(140%);
  overflow:hidden;
  position:relative;
  transition:border-color .2s var(--ease);
}
.faq-item[open]{border-color:rgba(46,168,255,.4)}
.faq-item[open]::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;
  background:linear-gradient(180deg,var(--mint),var(--primary));box-shadow:0 0 14px rgba(46,168,255,.7);
}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 22px;font-size:16.5px;font-weight:700;color:var(--text);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary .plus{
  flex:0 0 auto;width:26px;height:26px;border-radius:50%;
  border:1px solid var(--border-strong);position:relative;
  transition:transform .3s var(--ease),border-color .3s var(--ease);
}
.faq-item summary .plus::before,
.faq-item summary .plus::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--link);border-radius:2px;
  transform:translate(-50%,-50%);
}
.faq-item summary .plus::before{width:12px;height:2px}
.faq-item summary .plus::after{width:2px;height:12px}
.faq-item[open] summary .plus{transform:rotate(45deg);border-color:rgba(46,168,255,.6)}
.faq-body{padding:0 22px 22px;color:var(--text-soft);font-size:15px}

/* CTA */
.cta-banner{
  position:relative;overflow:hidden;
  border:1px solid var(--border);
  border-radius:var(--r-l);
  background:linear-gradient(160deg,rgba(255,255,255,.07),rgba(255,255,255,.02));
  backdrop-filter:blur(16px) saturate(140%);
  padding:44px;
  display:grid;grid-template-columns:1.4fr 1fr;gap:36px;align-items:center;
  box-shadow:var(--shadow-1);
}
.cta-banner::before{
  content:"";position:absolute;left:-10%;top:-40%;width:60%;height:180%;
  background:radial-gradient(circle,rgba(46,168,255,.28),transparent 65%);
  pointer-events:none;
}
.cta-banner h2{font-size:clamp(22px,3vw,32px);position:relative}
.cta-banner p{margin-top:12px;color:var(--text-soft);max-width:520px;position:relative}
.cta-form{position:relative;display:flex;flex-direction:column;gap:12px}
.cta-form label{font-size:13px;color:var(--text-mute);letter-spacing:.04em}
.field{
  width:100%;padding:14px 16px;border-radius:12px;
  background:rgba(6,10,20,.72);
  border:1px solid var(--border);
  color:var(--text);
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.field::placeholder{color:rgba(226,236,255,.35)}
.field:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 4px rgba(46,168,255,.18)}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:0 24px;border-radius:999px;
  font-size:15px;font-weight:700;text-decoration:none;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease),border-color .2s var(--ease);
}
.btn-primary{
  color:#04121f;
  background:linear-gradient(120deg,#4db6ff,#2ea8ff 55%,#1e8ae4);
  box-shadow:0 8px 28px rgba(46,168,255,.35);
  position:relative;overflow:hidden;
}
.btn-primary::after{
  content:"";position:absolute;top:0;left:-60%;width:40%;height:100%;
  background:linear-gradient(100deg,transparent,rgba(255,255,255,.55),transparent);
  transform:skewX(-18deg);transition:left .6s var(--ease);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 14px 34px rgba(46,168,255,.5);text-decoration:none;color:#04121f}
.btn-primary:hover::after{left:120%}
.btn-ghost{
  color:var(--text);
  border:1px solid var(--border-strong);
  background:linear-gradient(160deg,rgba(255,255,255,.06),rgba(255,255,255,.02));
}
.btn-ghost:hover{background:rgba(255,255,255,.1);transform:translateY(-2px);text-decoration:none;color:var(--text)}
.btn[disabled],.btn.is-disabled{opacity:.45;pointer-events:none}
.btn-row{display:flex;gap:14px;flex-wrap:wrap;margin-top:36px}

/* 空态 */
.empty-state{
  min-height:240px;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;
  text-align:center;padding:40px 24px;
  border:1px dashed var(--border-strong);
  border-radius:var(--r-m);
  background:rgba(11,17,30,.6);
}
.empty-state svg{width:48px;height:48px;stroke:var(--primary);opacity:.8}
.empty-state strong{font-size:18px;color:var(--text)}
.empty-state span{font-size:14px;color:var(--text-mute);max-width:420px}

/* 页脚 */
.site-footer{
  margin-top:96px;
  border-top:1px solid transparent;
  border-image:linear-gradient(90deg,transparent,rgba(46,168,255,.5),transparent) 1;
  background:var(--bg-2);
  padding:64px 0 28px;
  position:relative;z-index:1;
}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px}
.foot-brand .brand{margin-bottom:16px}
.foot-brand p{font-size:14.5px;color:var(--text-soft);max-width:360px}
.foot-col h3{font-size:14px;color:var(--text);margin-bottom:16px;letter-spacing:.04em}
.foot-col li{margin-bottom:10px}
.foot-col a,.foot-col .contact-line{font-size:14.5px;color:var(--text-mute)}
.foot-col a:hover{color:var(--link)}
.foot-bottom{
  margin-top:48px;padding-top:22px;
  border-top:1px solid var(--border);
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:13px;color:var(--text-mute);
}

@media (max-width:1023px){
  .section{padding:72px 0}
  .layout{grid-template-columns:1fr;gap:36px;padding-top:48px}
  .sidebar{position:static}
  .cta-banner{grid-template-columns:1fr;padding:32px}
  .foot-grid{grid-template-columns:1fr 1fr}
  .nav-toggle{display:block}
  .nav-links{
    position:absolute;left:12px;right:12px;top:74px;
    flex-direction:column;align-items:stretch;gap:0;
    padding:10px;
    border:1px solid var(--border);
    border-radius:22px;
    background:rgba(9,14,24,.96);
    backdrop-filter:blur(18px);
    box-shadow:0 24px 50px -20px rgba(0,0,0,.95);
    display:none;
  }
  .nav-links.is-open{display:flex}
  .nav-links > a{padding:14px 16px;border-radius:14px;font-size:15px}
  .nav-links > a + a{border-top:1px solid var(--border);border-radius:0}
  .nav-links > a.is-active::after{left:16px;right:auto;width:22px;bottom:8px}
  .nav-cta{margin:12px 6px 6px;text-align:center}
  .pill-nav{position:relative}
}
@media (max-width:767px){
  .container{padding:0 18px}
  .section{padding:56px 0}
  .shell-header{padding:0 12px;top:8px}
  .pill-nav{height:60px;padding:0 14px}
  .article-hero{padding:36px 0 0}
  .article-body{font-size:15.5px;line-height:1.85}
  .article-body h2{font-size:21px;margin-top:32px}
  .article-body h3{font-size:18px}
  .footer-rail{grid-template-columns:1fr}
  .poster{flex:0 0 158px}
  .foot-grid{grid-template-columns:1fr;gap:28px}
  .cta-banner{padding:24px}
  .cta-form .btn{width:100%}
  .btn-row .btn{width:100%}
  body::after{display:none}
  .side-card,.faq-item,.cta-banner,.poster,.pn-card{backdrop-filter:none;background:rgba(12,18,32,.86)}
}
@media (max-width:520px){
  .brand-text{font-size:15px}
  .brand-text em{display:none}
  .article-hero h1{font-size:26px}
  .crumb-current{max-width:180px}
  .meta-row{gap:8px;font-size:12px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none !important;transition:none !important;scroll-behavior:auto !important}
}

/* roulang page: category1 */
:root{
  --bg:#05070e;
  --bg-2:#080c16;
  --bg-3:#0b111e;
  --brand:#2ea8ff;
  --brand-deep:#1a7fe0;
  --brand-2:#34e5c8;
  --coral:#ff4d6d;
  --link:#7fd0ff;
  --text:#e6eeff;
  --muted:rgba(226,236,255,.72);
  --dim:rgba(226,236,255,.52);
  --line:rgba(255,255,255,.09);
  --line-strong:rgba(255,255,255,.16);
  --glass:linear-gradient(160deg, rgba(255,255,255,.06), rgba(255,255,255,.02));
  --glass-solid:rgba(12,18,32,.86);
  --r-s:10px;
  --r-m:18px;
  --r-l:22px;
  --r-xl:24px;
  --r-pill:999px;
  --shadow:0 18px 40px -18px rgba(0,0,0,.85);
  --glow:0 0 24px rgba(46,168,255,.28);
  --glow-btn:0 8px 28px rgba(46,168,255,.35);
  --ease:cubic-bezier(.22,.8,.2,1);
  --pad-sec:96px;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background-color:var(--bg);
  background-image:
    radial-gradient(900px 620px at 8% -6%, rgba(46,168,255,.12), transparent 62%),
    radial-gradient(760px 560px at 100% 108%, rgba(46,168,255,.08), transparent 60%);
  background-repeat:no-repeat;
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::after{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:1;
  background-image:repeating-linear-gradient(0deg, rgba(255,255,255,.03) 0 1px, transparent 1px 3px);
  opacity:.55;
}
img{max-width:100%;display:block;height:auto;background:linear-gradient(150deg,#0c1424,#080d18)}
a{color:var(--link);text-decoration:none;transition:color .2s var(--ease),text-shadow .2s var(--ease)}
a:hover{color:#a9e2ff;text-decoration:underline;text-shadow:0 0 12px rgba(127,208,255,.35)}
a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid var(--brand-2);outline-offset:2px;border-radius:6px}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.02em;line-height:1.25;color:#fff}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit}
::selection{background:rgba(46,168,255,.35);color:#fff}
::-webkit-scrollbar{width:10px;height:10px}
::-webkit-scrollbar-track{background:#070b14}
::-webkit-scrollbar-thumb{background:rgba(46,168,255,.32);border-radius:999px}
::-webkit-scrollbar-thumb:hover{background:rgba(46,168,255,.5)}

.grid-container{max-width:1280px;padding-left:24px;padding-right:24px}
.container{max-width:1280px;margin:0 auto;padding:0 24px}
.narrow{max-width:900px;margin:0 auto}

/* ---------- header / nav ---------- */
.shell-header{
  position:sticky;
  top:12px;
  z-index:90;
  padding:0 20px;
}
.pill-nav{
  max-width:1280px;
  margin:0 auto;
  height:68px;
  display:flex;
  align-items:center;
  gap:10px;
  padding:0 10px 0 20px;
  border-radius:var(--r-pill);
  background:var(--glass);
  border:1px solid var(--line);
  backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  box-shadow:var(--shadow);
  transition:height .28s var(--ease), background .28s var(--ease), border-color .28s var(--ease);
}
.shell-header.is-scrolled .pill-nav{
  height:56px;
  background:rgba(8,12,22,.88);
  border-color:var(--line-strong);
}
.brand{display:inline-flex;align-items:center;gap:10px;color:#fff;text-decoration:none;flex:0 0 auto}
.brand:hover{text-decoration:none;color:#fff}
.brand-mark{
  width:12px;height:12px;border-radius:4px;
  background:linear-gradient(135deg,var(--brand),var(--brand-2));
  box-shadow:0 0 14px rgba(46,168,255,.75);
  flex:0 0 auto;
}
.brand-text{display:inline-flex;align-items:baseline;gap:2px;font-size:17px;letter-spacing:-.01em}
.brand-text b{font-weight:900}
.brand-text i{font-style:normal;font-weight:400;color:rgba(226,236,255,.66);letter-spacing:.02em}
.brand-text em{font-style:normal;font-weight:600;color:var(--brand-2);font-size:15px}

.nav-links{margin-left:auto;display:flex;align-items:center;gap:2px}
.nav-links a{
  position:relative;
  display:inline-flex;align-items:center;
  height:40px;padding:0 14px;border-radius:var(--r-pill);
  font-size:14px;color:var(--muted);
  transition:color .2s var(--ease), background .2s var(--ease), transform .2s var(--ease);
  white-space:nowrap;
}
.nav-links a:hover{color:#fff;background:rgba(255,255,255,.06);text-decoration:none;text-shadow:none}
.nav-links a.is-active{color:#fff}
.nav-links a.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:4px;height:2px;border-radius:2px;
  background:linear-gradient(90deg, transparent, var(--brand-2), transparent);
  box-shadow:0 0 10px rgba(52,229,200,.8);
}
.nav-links a.nav-cta{
  margin-left:8px;
  height:44px;
  padding:0 20px;
  color:#04121f;
  font-weight:800;
  background:linear-gradient(135deg,#3fb4ff,var(--brand-deep));
  box-shadow:var(--glow-btn);
}
.nav-links a.nav-cta:hover{
  color:#04121f;
  transform:translateY(-2px);
  box-shadow:0 12px 34px rgba(46,168,255,.45);
}
.nav-toggle{display:none;margin-left:auto;width:44px;height:44px;border-radius:14px;border:1px solid var(--line);background:rgba(255,255,255,.04);position:relative}
.nav-toggle span,
.nav-toggle span::before,
.nav-toggle span::after{
  position:absolute;left:13px;width:18px;height:2px;border-radius:2px;background:#dfeaff;content:"";
  transition:transform .25s var(--ease), opacity .25s var(--ease);
}
.nav-toggle span{top:21px}
.nav-toggle span::before{top:-6px;left:0}
.nav-toggle span::after{top:6px;left:0}
.nav-toggle[aria-expanded="true"] span{background:transparent}
.nav-toggle[aria-expanded="true"] span::before{transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span::after{transform:translateY(-6px) rotate(-45deg)}

/* ---------- banner ---------- */
.page-banner{
  position:relative;
  margin:24px 20px 0;
  border-radius:var(--r-xl);
  overflow:hidden;
  min-height:40vh;
  display:flex;
  align-items:flex-end;
  background-image:linear-gradient(90deg, rgba(5,7,14,.94) 0%, rgba(5,7,14,.7) 52%, rgba(5,7,14,.42) 100%),
    radial-gradient(720px 420px at 82% 20%, rgba(46,168,255,.28), transparent 62%),
    url("/assets/images/backpic/back-2.webp");
  background-size:cover,cover,cover;
  background-position:center,center,center;
  border:1px solid var(--line);
}
.page-banner::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(180deg, rgba(5,7,14,.35), rgba(5,7,14,.85));
  pointer-events:none;
}
.banner-inner{position:relative;z-index:2;width:100%;padding-top:64px;padding-bottom:40px}
.crumbs{display:flex;align-items:center;gap:8px;font-size:12px;letter-spacing:.08em;color:var(--dim);margin-bottom:18px}
.crumbs a{color:var(--dim)}
.crumbs a:hover{color:var(--link)}
.crumbs span[aria-current]{color:var(--brand-2)}
.page-banner h1{
  font-size:clamp(34px,5vw,58px);
  font-weight:900;
  letter-spacing:-.03em;
  max-width:16em;
  text-shadow:0 12px 40px rgba(0,0,0,.6);
}
.banner-sub{margin-top:16px;max-width:620px;font-size:clamp(15px,1.4vw,18px);color:var(--muted)}
.banner-stats{
  display:flex;flex-wrap:wrap;gap:28px;margin-top:30px;padding-top:22px;
  border-top:1px solid rgba(255,255,255,.1);
}
.banner-stats li{display:flex;flex-direction:column;gap:2px;padding-right:28px;border-right:1px solid rgba(255,255,255,.12)}
.banner-stats li:last-child{border-right:0;padding-right:0}
.banner-stats strong{font-size:22px;font-weight:900;color:#fff;font-variant-numeric:tabular-nums}
.banner-stats span{font-size:12px;letter-spacing:.08em;color:var(--dim)}

/* ---------- section ---------- */
.section{padding:var(--pad-sec) 0}
.section--alt{background:linear-gradient(180deg,#080c16,#0b111e);border-top:1px solid rgba(255,255,255,.05);border-bottom:1px solid rgba(255,255,255,.05)}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:38px;flex-wrap:wrap}
.sec-head h2{font-size:clamp(24px,3vw,36px);position:relative;padding-left:18px}
.sec-head h2::before{
  content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:3px;border-radius:3px;
  background:linear-gradient(180deg,var(--brand-2),var(--brand));
  box-shadow:0 0 14px rgba(52,229,200,.6);
}
.sec-lead{margin-top:10px;font-size:15px;color:var(--muted);max-width:640px}
.sec-link{font-size:14px;color:var(--brand-2);white-space:nowrap}
.sec-link:hover{color:#8ff4e3}

/* ---------- feature cards ---------- */
.feature-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.fcard{
  border-radius:var(--r-l);
  overflow:hidden;
  border:1px solid var(--line);
  background:var(--glass);
  backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  box-shadow:var(--shadow);
  transition:transform .32s var(--ease), border-color .32s var(--ease), box-shadow .32s var(--ease);
  display:flex;flex-direction:column;
}
.fcard:hover{transform:translateY(-6px);border-color:rgba(46,168,255,.5);box-shadow:var(--shadow),var(--glow)}
.fcard-media{position:relative;overflow:hidden}
.fcard-media img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .6s var(--ease)}
.fcard:hover .fcard-media img{transform:scale(1.05)}
.fcard-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg, rgba(5,7,14,0) 40%, rgba(5,7,14,.72) 100%)}
.fcard-tag{
  position:absolute;left:16px;top:16px;z-index:3;
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:var(--r-pill);font-size:12px;letter-spacing:.06em;
  background:rgba(5,10,20,.72);border:1px solid rgba(46,168,255,.4);color:#bfe6ff;
}
.fcard-tag::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--brand);box-shadow:0 0 8px var(--brand)}
.fcard-body{padding:22px 24px 26px;display:flex;flex-direction:column;gap:10px;flex:1}
.fcard-body h3{font-size:19px}
.fcard-body p{font-size:14px;color:var(--muted);line-height:1.7}
.fcard-foot{margin-top:auto;padding-top:14px;display:flex;align-items:center;gap:10px;font-size:13px;color:var(--brand-2)}

/* ---------- rail ---------- */
.rail-wrap{position:relative}
.rail-wrap::before,
.rail-wrap::after{
  content:"";position:absolute;top:0;bottom:16px;width:44px;pointer-events:none;z-index:3;
}
.rail-wrap::before{left:-6px;background:linear-gradient(90deg,#0a0f1b, rgba(10,15,27,0))}
.rail-wrap::after{right:-6px;background:linear-gradient(270deg,#0a0f1b, rgba(10,15,27,0))}
.section--alt .rail-wrap::before{background:linear-gradient(90deg,#0b111e, rgba(11,17,30,0))}
.section--alt .rail-wrap::after{background:linear-gradient(270deg,#0b111e, rgba(11,17,30,0))}
.rail{
  display:flex;gap:16px;overflow-x:auto;scroll-snap-type:x mandatory;
  padding:6px 4px 18px;scrollbar-width:none;-ms-overflow-style:none;
  scroll-behavior:smooth;
}
.rail::-webkit-scrollbar{display:none}
.poster-card{
  flex:0 0 auto;width:240px;scroll-snap-align:start;
  position:relative;border-radius:var(--r-m);overflow:hidden;
  border:1px solid var(--line);background:#0a0f1b;
  transition:transform .32s var(--ease), border-color .32s var(--ease), box-shadow .32s var(--ease);
}
.poster-card:hover{transform:translateY(-6px);border-color:rgba(46,168,255,.55);box-shadow:var(--shadow),var(--glow)}
.poster-card img{width:100%;aspect-ratio:2/3;object-fit:cover;transition:transform .6s var(--ease)}
.poster-card:hover img{transform:scale(1.05)}
.poster-badges{position:absolute;left:10px;top:10px;display:flex;gap:6px;z-index:3}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 10px;border-radius:var(--r-pill);font-size:12px;letter-spacing:.04em;
  background:rgba(5,10,20,.74);border:1px solid rgba(46,168,255,.42);color:#c7e9ff;
  backdrop-filter:blur(6px);
}
.badge::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--brand);box-shadow:0 0 8px var(--brand)}
.badge--hot{border-color:rgba(255,77,109,.5);color:#ffd3dc}
.badge--hot::before{background:var(--coral);box-shadow:0 0 8px var(--coral)}
.badge--score{border-color:rgba(52,229,200,.5);color:#c6fff4}
.badge--score::before{background:var(--brand-2);box-shadow:0 0 8px var(--brand-2)}
.poster-body{
  position:absolute;left:0;right:0;bottom:0;padding:34px 14px 14px;
  background:linear-gradient(180deg, rgba(5,7,14,0), rgba(5,7,14,.9) 62%);
}
.poster-body h3{font-size:15px;font-weight:800;line-height:1.4;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.poster-body span{display:block;margin-top:6px;font-size:12px;color:var(--dim);letter-spacing:.04em}

.rail-ctl{display:flex;gap:8px}
.rail-ctl button{
  width:42px;height:42px;border-radius:50%;
  border:1px solid var(--line);background:rgba(255,255,255,.04);color:#dfeaff;
  display:inline-flex;align-items:center;justify-content:center;
  transition:background .2s var(--ease), border-color .2s var(--ease), transform .2s var(--ease);
}
.rail-ctl button:hover{background:rgba(255,255,255,.09);border-color:rgba(46,168,255,.5);transform:translateY(-2px)}
.rail-ctl svg{width:16px;height:16px}

/* ---------- checklist ---------- */
.check-split{display:grid;grid-template-columns:5fr 7fr;gap:48px;align-items:start}
.check-split h2{font-size:clamp(24px,3vw,34px);position:relative;padding-left:18px}
.check-split h2::before{content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:3px;border-radius:3px;background:linear-gradient(180deg,var(--brand-2),var(--brand));box-shadow:0 0 14px rgba(52,229,200,.6)}
.check-split .sec-lead{margin-top:14px}
.check-panel{
  border-radius:var(--r-l);border:1px solid var(--line);background:var(--glass);
  backdrop-filter:blur(16px) saturate(140%);-webkit-backdrop-filter:blur(16px) saturate(140%);
  box-shadow:var(--shadow);padding:8px 26px;
}
.check-list li{
  display:flex;gap:14px;padding:20px 0;border-bottom:1px solid rgba(255,255,255,.07);
  align-items:flex-start;
}
.check-list li:last-child{border-bottom:0}
.check-list .tick{
  flex:0 0 auto;width:24px;height:24px;border-radius:8px;margin-top:2px;
  display:inline-flex;align-items:center;justify-content:center;
  background:rgba(52,229,200,.12);border:1px solid rgba(52,229,200,.4);
}
.check-list .tick svg{width:13px;height:13px;stroke:var(--brand-2);stroke-width:2.4;fill:none;stroke-linecap:round;stroke-linejoin:round}
.check-list strong{display:block;font-size:16px;color:#fff;margin-bottom:4px}
.check-list p{font-size:14px;color:var(--muted)}

/* ---------- metrics ---------- */
.metric-band{
  display:grid;grid-template-columns:repeat(4,1fr);
  border-radius:var(--r-xl);overflow:hidden;
  border:1px solid var(--line);background:var(--glass);
  backdrop-filter:blur(16px) saturate(140%);-webkit-backdrop-filter:blur(16px) saturate(140%);
  box-shadow:var(--shadow);
}
.metric-item{padding:34px 26px;border-right:1px solid rgba(255,255,255,.08);transition:background .25s var(--ease)}
.metric-item:last-child{border-right:0}
.metric-item:hover{background:rgba(46,168,255,.06)}
.metric-item strong{
  display:block;font-size:clamp(26px,3vw,36px);font-weight:900;color:#fff;
  font-variant-numeric:tabular-nums;letter-spacing:-.02em;
}
.metric-item strong em{font-style:normal;font-size:15px;color:var(--brand-2);margin-left:4px;font-weight:700}
.metric-item span{display:block;margin-top:8px;font-size:13px;letter-spacing:.06em;color:var(--dim)}
.metric-item p{margin-top:12px;font-size:14px;color:var(--muted);line-height:1.7}

/* ---------- faq ---------- */
.faq-list{max-width:900px;margin:0 auto;display:flex;flex-direction:column;gap:14px}
.faq-item{
  border-radius:var(--r-m);border:1px solid var(--line);background:var(--glass);
  backdrop-filter:blur(16px) saturate(140%);-webkit-backdrop-filter:blur(16px) saturate(140%);
  overflow:hidden;position:relative;transition:border-color .25s var(--ease), background .25s var(--ease);
}
.faq-item::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;border-radius:3px;
  background:linear-gradient(180deg,var(--brand-2),var(--brand));
  opacity:0;transition:opacity .25s var(--ease);box-shadow:0 0 14px rgba(52,229,200,.7);
}
.faq-item.is-open{border-color:rgba(46,168,255,.42);background:rgba(14,21,36,.72)}
.faq-item.is-open::before{opacity:1}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 24px;text-align:left;font-size:16px;font-weight:700;color:#fff;
  transition:color .2s var(--ease);
}
.faq-q:hover{color:var(--brand-2)}
.faq-icon{position:relative;flex:0 0 auto;width:20px;height:20px;transition:transform .3s var(--ease)}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--brand-2);border-radius:2px;
  transform:translate(-50%,-50%);
}
.faq-icon::before{width:14px;height:2px}
.faq-icon::after{width:2px;height:14px}
.faq-item.is-open .faq-icon{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .32s var(--ease)}
.faq-a p{padding:0 24px 22px;font-size:14px;color:var(--muted);line-height:1.8}

/* ---------- cta ---------- */
.cta-band{
  position:relative;border-radius:var(--r-xl);overflow:hidden;
  border:1px solid var(--line);background:var(--glass);
  backdrop-filter:blur(16px) saturate(140%);-webkit-backdrop-filter:blur(16px) saturate(140%);
  box-shadow:var(--shadow);
  padding:46px 44px;
  display:grid;grid-template-columns:7fr 5fr;gap:44px;align-items:center;
}
.cta-band::before{
  content:"";position:absolute;left:-140px;top:-160px;width:460px;height:460px;border-radius:50%;
  background:radial-gradient(circle, rgba(46,168,255,.28), transparent 68%);
  pointer-events:none;
}
.cta-band h2{position:relative;font-size:clamp(24px,3vw,34px);z-index:2}
.cta-band p{position:relative;margin-top:14px;font-size:15px;color:var(--muted);max-width:520px;z-index:2}
.cta-form{position:relative;z-index:2;display:flex;flex-direction:column;gap:12px}
.cta-form label{font-size:13px;letter-spacing:.06em;color:var(--dim)}
.cta-row{display:flex;gap:12px;flex-wrap:wrap}
.cta-form input{
  flex:1 1 200px;min-width:0;height:50px;padding:0 18px;border-radius:var(--r-pill);
  background:rgba(6,10,20,.72);border:1px solid var(--line);color:#fff;font-size:15px;
  transition:border-color .2s var(--ease), box-shadow .2s var(--ease), background .2s var(--ease);
}
.cta-form input::placeholder{color:rgba(226,236,255,.36)}
.cta-form input:focus{outline:none;border-color:var(--brand-2);box-shadow:0 0 0 3px rgba(52,229,200,.16), 0 0 22px rgba(52,229,200,.2);background:rgba(8,14,26,.9)}
.form-hint{font-size:13px;color:var(--brand-2);min-height:20px}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:50px;padding:0 26px;border-radius:var(--r-pill);
  font-size:15px;font-weight:800;letter-spacing:.02em;
  transition:transform .2s var(--ease), box-shadow .2s var(--ease), background .2s var(--ease), color .2s var(--ease);
  position:relative;overflow:hidden;
}
.btn-primary{
  color:#04121f;
  background:linear-gradient(135deg,#43b7ff,var(--brand-deep));
  box-shadow:var(--glow-btn);
}
.btn-primary:hover{transform:translateY(-2px);color:#04121f;text-decoration:none;box-shadow:0 14px 36px rgba(46,168,255,.5)}
.btn-primary::after{
  content:"";position:absolute;top:0;left:-60%;width:40%;height:100%;
  background:linear-gradient(100deg, transparent, rgba(255,255,255,.55), transparent);
  transform:skewX(-18deg);transition:left .6s var(--ease);
}
.btn-primary:hover::after{left:120%}
.btn-ghost{
  color:#dfeaff;border:1px solid var(--line-strong);
  background:rgba(255,255,255,.04);backdrop-filter:blur(8px);
}
.btn-ghost:hover{background:rgba(255,255,255,.09);color:#fff;text-decoration:none;transform:translateY(-2px)}
.btn:disabled,.btn.is-disabled{opacity:.45;cursor:not-allowed;transform:none!important;box-shadow:none}

/* ---------- footer ---------- */
.site-footer{
  margin-top:20px;
  background:linear-gradient(180deg,#070b14,#05070e);
  border-top:1px solid rgba(255,255,255,.07);
  position:relative;
}
.site-footer::before{
  content:"";position:absolute;top:-1px;left:0;right:0;height:1px;
  background:linear-gradient(90deg, transparent, rgba(46,168,255,.7), rgba(52,229,200,.6), transparent);
}
.foot-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;padding:64px 0 44px}
.foot-brand .brand{margin-bottom:18px}
.foot-brand p{font-size:14px;color:var(--muted);line-height:1.8;max-width:340px}
.foot-col h3{font-size:14px;letter-spacing:.1em;color:#fff;margin-bottom:18px;font-weight:800}
.foot-col ul{display:flex;flex-direction:column;gap:11px}
.foot-col a{font-size:14px;color:var(--muted)}
.foot-col a:hover{color:var(--brand-2)}
.contact-line{font-size:14px;color:var(--muted)}
.foot-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding:22px 0 30px;border-top:1px solid rgba(255,255,255,.07);
  font-size:13px;color:var(--dim);
}

/* ---------- responsive ---------- */
@media (min-width:1440px){
  .grid-container{max-width:1280px}
}
@media (max-width:1023px){
  :root{--pad-sec:72px}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center}
  .nav-links{
    position:fixed;top:88px;left:12px;right:12px;
    flex-direction:column;align-items:stretch;gap:0;
    padding:10px;border-radius:var(--r-l);
    background:rgba(8,12,22,.95);
    border:1px solid var(--line-strong);
    backdrop-filter:blur(18px);
    box-shadow:0 26px 60px -20px rgba(0,0,0,.9);
    transform:translateY(-12px);opacity:0;visibility:hidden;
    transition:transform .28s var(--ease), opacity .28s var(--ease), visibility .28s var(--ease);
    max-height:calc(100vh - 120px);overflow-y:auto;
  }
  .nav-links.is-open{transform:translateY(0);opacity:1;visibility:visible}
  .nav-links a{height:48px;padding:0 16px;border-radius:12px;justify-content:flex-start;font-size:15px}
  .nav-links a + a{border-top:1px solid rgba(255,255,255,.07);border-radius:0}
  .nav-links a.is-active::after{left:16px;right:auto;width:22px;bottom:8px}
  .nav-links a.nav-cta{margin:10px 0 0;justify-content:center;border-radius:var(--r-pill);border-top:0}
  .feature-grid{grid-template-columns:1fr}
  .check-split{grid-template-columns:1fr;gap:32px}
  .metric-band{grid-template-columns:repeat(2,1fr)}
  .metric-item:nth-child(2){border-right:0}
  .metric-item:nth-child(1),.metric-item:nth-child(2){border-bottom:1px solid rgba(255,255,255,.08)}
  .cta-band{grid-template-columns:1fr;gap:28px;padding:38px 32px}
  .foot-grid{grid-template-columns:repeat(2,1fr);gap:32px}
}
@media (max-width:767px){
  :root{--pad-sec:56px}
  body::after{display:none}
  .shell-header{top:10px;padding:0 12px}
  .pill-nav{height:60px;padding:0 8px 0 16px;background:rgba(8,12,22,.9)}
  .shell-header.is-scrolled .pill-nav{height:54px}
  .brand-text{font-size:15px}
  .page-banner{margin:16px 12px 0;border-radius:18px;min-height:auto}
  .banner-inner{padding-top:52px;padding-bottom:32px}
  .banner-stats{gap:18px}
  .banner-stats li{padding-right:18px}
  .banner-stats strong{font-size:19px}
  .feature-grid{gap:16px}
  .poster-card{width:158px}
  .metric-band{grid-template-columns:1fr}
  .metric-item{border-right:0;border-bottom:1px solid rgba(255,255,255,.08)}
  .metric-item:last-child{border-bottom:0}
  .cta-band{padding:30px 22px;border-radius:20px}
  .cta-row{flex-direction:column}
  .cta-form input,.cta-form .btn{width:100%;flex:1 1 auto}
  .faq-q{padding:18px 18px;font-size:15px}
  .faq-a p{padding:0 18px 18px}
  .foot-grid{grid-template-columns:1fr;padding:48px 0 32px}
  .foot-bottom{flex-direction:column;align-items:flex-start;gap:8px}
  .fcard{backdrop-filter:none;-webkit-backdrop-filter:none;background:var(--glass-solid)}
  .check-panel{backdrop-filter:none;-webkit-backdrop-filter:none;background:var(--glass-solid);padding:4px 18px}
  .metric-band{backdrop-filter:none;-webkit-backdrop-filter:none;background:var(--glass-solid)}
  .faq-item{backdrop-filter:none;-webkit-backdrop-filter:none;background:var(--glass-solid)}
}
@media (max-width:520px){
  .container,.grid-container{padding-left:16px;padding-right:16px}
  .sec-head{margin-bottom:26px}
  .page-banner h1{font-size:30px}
  .banner-stats li{border-right:0;padding-right:0}
}
@media (prefers-reduced-motion: reduce){
  *,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important;scroll-behavior:auto!important}
}

/* roulang page: category2 */
:root{
  --bg:#05070e;
  --bg-2:#080c16;
  --bg-3:#0b111e;
  --line:rgba(255,255,255,.09);
  --line-2:rgba(255,255,255,.06);
  --text:#e2ecff;
  --text-2:rgba(226,236,255,.72);
  --text-3:rgba(226,236,255,.48);
  --primary:#2ea8ff;
  --accent:#ff4d6d;
  --mint:#34e5c8;
  --link:#7fd0ff;
  --r-s:10px;
  --r-m:18px;
  --r-l:24px;
  --pill:999px;
  --shadow-1:0 18px 40px -18px rgba(0,0,0,.85);
  --shadow-2:0 0 24px rgba(46,168,255,.28);
  --glass:linear-gradient(160deg,rgba(255,255,255,.06),rgba(255,255,255,.02));
  --glass-solid:rgba(12,18,32,.86);
  --ease:cubic-bezier(.22,.8,.2,1);
  --t-fast:200ms;
  --t-card:320ms;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.75;
  letter-spacing:0;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
body::before{
  content:"";position:fixed;inset:0;pointer-events:none;z-index:0;
  background:
    radial-gradient(900px 600px at 12% 0%,rgba(46,168,255,.12),transparent 60%),
    radial-gradient(700px 520px at 92% 88%,rgba(46,168,255,.08),transparent 62%);
}
body::after{
  content:"";position:fixed;inset:0;pointer-events:none;z-index:0;opacity:.03;
  background:repeating-linear-gradient(0deg,rgba(255,255,255,.6) 0 1px,transparent 1px 3px);
}
img{max-width:100%;height:auto;display:block}
a{color:var(--link);text-decoration:none;transition:color var(--t-fast) var(--ease),text-shadow var(--t-fast) var(--ease)}
a:hover{color:#a9e0ff;text-decoration:underline;text-underline-offset:3px;text-shadow:0 0 12px rgba(127,208,255,.35)}
h1,h2,h3,h4{margin:0;color:var(--text);font-weight:800;letter-spacing:-.02em;line-height:1.25}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
button{font-family:inherit;cursor:pointer}
input{font-family:inherit}
::selection{background:rgba(46,168,255,.35);color:#fff}
*:focus-visible{outline:2px solid var(--mint);outline-offset:2px;border-radius:6px}
::-webkit-scrollbar{width:10px;height:10px}
::-webkit-scrollbar-track{background:#05070e}
::-webkit-scrollbar-thumb{background:linear-gradient(180deg,#1d4f78,#12324c);border-radius:8px}
::-webkit-scrollbar-thumb:hover{background:linear-gradient(180deg,#2ea8ff,#1a5c8c)}
.container{width:100%;max-width:1280px;margin:0 auto;padding:0 20px;position:relative;z-index:1}
.grid-container{max-width:1280px}

/* ---------- 导航 ---------- */
.shell-header{
  position:sticky;top:12px;z-index:60;padding:0 20px;
  transition:top var(--t-fast) var(--ease);
}
.pill-nav{
  max-width:1280px;margin:0 auto;
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  height:68px;padding:0 12px 0 20px;
  border-radius:var(--pill);
  border:1px solid var(--line);
  background:var(--glass);
  backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  box-shadow:var(--shadow-1);
  transition:height var(--t-fast) var(--ease),background var(--t-fast) var(--ease),border-color var(--t-fast) var(--ease);
}
.shell-header.is-scrolled .pill-nav{height:56px;border-color:rgba(255,255,255,.13);background:linear-gradient(160deg,rgba(10,16,28,.92),rgba(10,16,28,.78))}
.brand{display:inline-flex;align-items:center;gap:10px;text-decoration:none;color:var(--text);flex:0 0 auto}
.brand:hover{text-decoration:none}
.brand-mark{
  width:26px;height:26px;border-radius:8px;flex:0 0 auto;
  background:linear-gradient(140deg,var(--primary),#0f6fb5);
  box-shadow:0 0 18px rgba(46,168,255,.55),inset 0 0 12px rgba(255,255,255,.28);
  position:relative;
}
.brand-mark::after{content:"";position:absolute;inset:8px;border-radius:3px;background:rgba(5,7,14,.85)}
.brand-text{display:inline-flex;align-items:baseline;gap:1px;font-size:18px;font-weight:800;letter-spacing:-.01em}
.brand-text b{font-weight:900}
.brand-text i{font-style:normal;font-weight:500;color:var(--primary);letter-spacing:.02em}
.brand-text em{font-style:normal;font-weight:600;font-size:14px;color:var(--text-2);margin-left:3px}
.nav-links{display:flex;align-items:center;gap:4px}
.nav-links a{
  position:relative;color:var(--text-2);font-size:14.5px;font-weight:600;
  padding:9px 13px;border-radius:var(--pill);white-space:nowrap;
  transition:color var(--t-fast) var(--ease),background var(--t-fast) var(--ease);
}
.nav-links a:hover{color:#fff;background:rgba(255,255,255,.06);text-decoration:none}
.nav-links a.is-active{color:#fff}
.nav-links a.is-active::after{
  content:"";position:absolute;left:13px;right:13px;bottom:3px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--mint),var(--primary));
  box-shadow:0 0 10px rgba(52,229,200,.6);
}
.nav-cta{
  margin-left:8px;
  display:inline-flex;align-items:center;height:40px;padding:0 20px;border-radius:var(--pill);
  color:#03121f !important;font-weight:800;font-size:14.5px;
  background:linear-gradient(135deg,#63c6ff,var(--primary));
  box-shadow:0 8px 28px rgba(46,168,255,.35);
  transition:transform var(--t-fast) var(--ease),box-shadow var(--t-fast) var(--ease);
  position:relative;overflow:hidden;
}
.nav-cta:hover{transform:translateY(-2px);box-shadow:0 12px 34px rgba(46,168,255,.5);text-decoration:none}
.nav-links a.nav-cta.is-active::after{display:none}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:var(--pill);
  border:1px solid var(--line);background:rgba(255,255,255,.05);
  align-items:center;justify-content:center;
}
.nav-toggle span{width:18px;height:2px;background:#dfeaff;border-radius:2px;position:relative;display:block}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:#dfeaff;border-radius:2px;
  transition:transform var(--t-fast) var(--ease);
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}

/* ---------- Hero ---------- */
.page-hero{
  position:relative;margin-top:-80px;padding:150px 0 56px;
  min-height:42vh;display:flex;align-items:flex-end;
  overflow:hidden;isolation:isolate;
}
.page-hero__bg{position:absolute;inset:0;z-index:-2}
.page-hero__bg img{width:100%;height:100%;object-fit:cover;filter:saturate(.85) brightness(.6)}
.page-hero::before{
  content:"";position:absolute;inset:0;z-index:-1;
  background:
    linear-gradient(180deg,rgba(5,7,14,.92) 0%,rgba(5,7,14,.72) 45%,rgba(5,7,14,.97) 100%),
    radial-gradient(900px 500px at 15% 100%,rgba(46,168,255,.2),transparent 65%);
}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:12px;letter-spacing:.08em;color:var(--text-3);margin-bottom:16px}
.crumb a{color:var(--text-3)}
.crumb a:hover{color:var(--link)}
.crumb span{color:rgba(226,236,255,.28)}
.page-hero h1{font-size:clamp(30px,4.4vw,52px);font-weight:900;max-width:16em}
.page-hero h1 .hl{
  background:linear-gradient(120deg,#8fd6ff,var(--primary) 60%,var(--mint));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.page-hero__lead{margin-top:16px;max-width:44em;font-size:17px;color:var(--text-2)}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}
.tag{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 14px;border-radius:var(--pill);font-size:12.5px;font-weight:600;
  color:var(--text-2);border:1px solid var(--line);background:rgba(255,255,255,.04);
}
.tag::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--primary);box-shadow:0 0 8px rgba(46,168,255,.8)}
.tag--mint::before{background:var(--mint);box-shadow:0 0 8px rgba(52,229,200,.8)}
.tag--hot::before{background:var(--accent);box-shadow:0 0 8px rgba(255,77,109,.8)}

/* ---------- 指标条 ---------- */
.metrics{
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  background:linear-gradient(180deg,rgba(11,17,30,.75),rgba(8,12,22,.5));
}
.metrics__grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0}
.metric{padding:26px 22px;position:relative}
.metric+.metric::before{content:"";position:absolute;left:0;top:22px;bottom:22px;width:1px;background:var(--line)}
.metric b{display:block;font-size:clamp(22px,2.6vw,32px);font-weight:900;letter-spacing:-.02em;font-variant-numeric:tabular-nums;
  background:linear-gradient(120deg,#a8ddff,var(--primary));-webkit-background-clip:text;background-clip:text;color:transparent}
.metric span{display:block;margin-top:4px;font-size:13px;color:var(--text-3);letter-spacing:.06em}

/* ---------- 板块 ---------- */
.section{padding:96px 0;position:relative}
.section--alt{background:var(--bg-2)}
.section--deep{background:var(--bg-3)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;flex-wrap:wrap}
.section-head h2{font-size:clamp(24px,3vw,36px);position:relative;padding-left:18px}
.section-head h2::before{
  content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:3px;border-radius:3px;
  background:linear-gradient(180deg,var(--mint),var(--primary));box-shadow:0 0 12px rgba(52,229,200,.5);
}
.section-head p{margin-top:8px;font-size:14.5px;color:var(--text-3);padding-left:18px}
.head-link{font-size:14px;font-weight:600;color:var(--link);white-space:nowrap}
.head-link::after{content:" →";transition:margin var(--t-fast) var(--ease)}
.head-link:hover::after{margin-left:4px}

/* ---------- 时间轴 ---------- */
.timeline{position:relative;max-width:900px;margin:0 auto}
.timeline::before{
  content:"";position:absolute;left:99px;top:10px;bottom:10px;width:1px;
  background:linear-gradient(180deg,rgba(46,168,255,0),rgba(46,168,255,.45) 12%,rgba(46,168,255,.45) 88%,rgba(46,168,255,0));
}
.tl-item{
  position:relative;display:grid;grid-template-columns:88px 1fr;gap:44px;
  padding:24px 26px 24px 0;border-radius:var(--r-m);
  transition:background var(--t-card) var(--ease),transform var(--t-card) var(--ease);
}
.tl-item::after{
  content:"";position:absolute;left:99px;top:14px;bottom:14px;width:1px;
  background:linear-gradient(180deg,transparent,var(--mint),transparent);
  opacity:0;transition:opacity var(--t-card) var(--ease);
}
.tl-item:hover{background:linear-gradient(100deg,rgba(46,168,255,.07),rgba(46,168,255,0) 70%);transform:translateX(4px)}
.tl-item:hover::after{opacity:1}
.tl-num{
  grid-column:1;justify-self:end;align-self:start;
  font-size:clamp(48px,7vw,72px);line-height:1;font-weight:900;
  font-variant-numeric:tabular-nums;letter-spacing:-.04em;
  color:transparent;-webkit-text-stroke:1.5px rgba(46,168,255,.5);
  transition:opacity var(--t-card) var(--ease),-webkit-text-stroke-color var(--t-card) var(--ease);
  opacity:.75;
}
.tl-item:hover .tl-num{opacity:1;-webkit-text-stroke-color:rgba(52,229,200,.85)}
.tl-body{grid-column:2;padding-top:6px}
.tl-body h3{font-size:clamp(18px,2vw,20px);margin-bottom:8px}
.tl-body p{font-size:14.5px;color:var(--text-2);max-width:52em}
.tl-badges{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}

/* ---------- 图文棋盘 ---------- */
.split{display:grid;grid-template-columns:7fr 5fr;gap:44px;align-items:center}
.split__media{position:relative;border-radius:var(--r-l);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow-1)}
.split__media img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform 600ms var(--ease)}
.split__media:hover img{transform:scale(1.04)}
.split__media figcaption{
  position:absolute;left:0;right:0;bottom:0;padding:36px 20px 16px;
  background:linear-gradient(0deg,rgba(5,7,14,.94),rgba(5,7,14,0));
  font-size:13px;color:var(--text-2);
}
.point-list li{
  display:flex;gap:14px;padding:16px 0;border-bottom:1px solid var(--line-2);
}
.point-list li:last-child{border-bottom:0}
.point-list .dot{
  flex:0 0 auto;width:9px;height:9px;margin-top:9px;border-radius:2px;
  background:var(--mint);box-shadow:0 0 10px rgba(52,229,200,.7);
}
.point-list h4{font-size:16px;margin-bottom:4px}
.point-list p{font-size:14px;color:var(--text-2)}

/* ---------- 横滑卡带 ---------- */
.rail-wrap{position:relative}
.rail{
  display:flex;gap:20px;overflow-x:auto;scroll-snap-type:x mandatory;
  padding:6px 4px 22px;-webkit-overflow-scrolling:touch;
  scrollbar-width:none;
}
.rail::-webkit-scrollbar{display:none}
.rail-wrap::before,.rail-wrap::after{
  content:"";position:absolute;top:0;bottom:22px;width:44px;pointer-events:none;z-index:2;
}
.rail-wrap::before{left:-4px;background:linear-gradient(90deg,var(--bg-3),rgba(11,17,30,0))}
.rail-wrap::after{right:-4px;background:linear-gradient(270deg,var(--bg-3),rgba(11,17,30,0))}
.poster-card{
  flex:0 0 240px;scroll-snap-align:start;border-radius:var(--r-m);overflow:hidden;
  border:1px solid var(--line);background:var(--glass);
  transition:transform var(--t-card) var(--ease),border-color var(--t-card) var(--ease),box-shadow var(--t-card) var(--ease);
  display:flex;flex-direction:column;
}
.poster-card:hover{transform:translateY(-6px);border-color:rgba(46,168,255,.55);box-shadow:var(--shadow-2)}
.poster-card__media{position:relative;aspect-ratio:16/10;overflow:hidden;background:#0d1626}
.poster-card__media img{width:100%;height:100%;object-fit:cover;transition:transform 600ms var(--ease)}
.poster-card:hover .poster-card__media img{transform:scale(1.05)}
.poster-card__media .badge{position:absolute;top:10px;left:10px}
.poster-card__body{padding:14px 16px 18px;display:flex;flex-direction:column;gap:8px;flex:1}
.poster-card__body h3{font-size:17px;line-height:1.4}
.poster-card__body p{font-size:13.5px;color:var(--text-3)}
.badge{
  display:inline-flex;align-items:center;gap:6px;padding:4px 11px;border-radius:var(--pill);
  font-size:11.5px;font-weight:700;letter-spacing:.04em;
  background:rgba(6,12,22,.78);border:1px solid var(--line);color:var(--text-2);backdrop-filter:blur(8px);
}
.badge::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--primary);box-shadow:0 0 8px rgba(46,168,255,.9)}
.badge--mint::before{background:var(--mint);box-shadow:0 0 8px rgba(52,229,200,.9)}
.badge--hot::before{background:var(--accent);box-shadow:0 0 8px rgba(255,77,109,.9)}

/* ---------- FAQ ---------- */
.faq{max-width:900px;margin:0 auto;display:grid;gap:14px}
.faq-item{
  border:1px solid var(--line);border-radius:var(--r-m);background:var(--glass);
  backdrop-filter:blur(14px);overflow:hidden;position:relative;
  transition:border-color var(--t-fast) var(--ease),background var(--t-fast) var(--ease);
}
.faq-item::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:linear-gradient(180deg,var(--mint),var(--primary));
  opacity:0;transition:opacity var(--t-fast) var(--ease);box-shadow:0 0 14px rgba(52,229,200,.6);
}
.faq-item.is-open{border-color:rgba(46,168,255,.45)}
.faq-item.is-open::before{opacity:1}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 22px;background:transparent;border:0;color:var(--text);
  font-size:16.5px;font-weight:700;text-align:left;
}
.faq-q:hover{color:#fff}
.faq-q .plus{
  flex:0 0 auto;width:26px;height:26px;border-radius:8px;border:1px solid var(--line);
  position:relative;transition:transform var(--t-card) var(--ease),border-color var(--t-fast) var(--ease);
}
.faq-q .plus::before,.faq-q .plus::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--primary);border-radius:2px;transform:translate(-50%,-50%);
}
.faq-q .plus::before{width:12px;height:1.6px}
.faq-q .plus::after{width:1.6px;height:12px}
.faq-item.is-open .faq-q .plus{transform:rotate(45deg);border-color:rgba(46,168,255,.6)}
.faq-a{max-height:0;overflow:hidden;transition:max-height var(--t-card) var(--ease)}
.faq-a p{padding:0 22px 22px;font-size:14.5px;color:var(--text-2)}

/* ---------- CTA ---------- */
.cta-banner{
  position:relative;border-radius:var(--r-l);border:1px solid var(--line);
  background:var(--glass);backdrop-filter:blur(16px) saturate(140%);
  padding:48px;overflow:hidden;box-shadow:var(--shadow-1);
}
.cta-banner::before{
  content:"";position:absolute;left:-80px;top:-80px;width:380px;height:380px;border-radius:50%;
  background:radial-gradient(circle,rgba(46,168,255,.28),transparent 68%);pointer-events:none;
}
.cta-banner::after{
  content:"";position:absolute;right:-60px;bottom:-90px;width:300px;height:300px;border-radius:50%;
  background:radial-gradient(circle,rgba(52,229,200,.18),transparent 70%);pointer-events:none;
}
.cta-grid{display:grid;grid-template-columns:7fr 5fr;gap:40px;align-items:center;position:relative;z-index:1}
.cta-grid h2{font-size:clamp(23px,2.8vw,32px)}
.cta-grid p{margin-top:12px;font-size:15px;color:var(--text-2);max-width:34em}
.cta-form{display:grid;gap:12px}
.field label{display:block;font-size:13px;color:var(--text-3);margin-bottom:6px;letter-spacing:.04em}
.field input{
  width:100%;height:50px;padding:0 16px;border-radius:var(--r-s);
  background:rgba(8,13,24,.85);border:1px solid var(--line);color:var(--text);
  transition:border-color var(--t-fast) var(--ease),box-shadow var(--t-fast) var(--ease),background var(--t-fast) var(--ease);
}
.field input::placeholder{color:rgba(226,236,255,.32)}
.field input:focus{
  outline:none;border-color:var(--primary);background:rgba(10,18,32,.95);
  box-shadow:0 0 0 3px rgba(46,168,255,.16),0 0 22px rgba(46,168,255,.25);
}
.form-note{font-size:12.5px;color:var(--text-3)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:50px;padding:0 26px;border-radius:var(--pill);border:1px solid transparent;
  font-size:15px;font-weight:800;letter-spacing:.01em;text-decoration:none;white-space:nowrap;
  transition:transform var(--t-fast) var(--ease),box-shadow var(--t-fast) var(--ease),background var(--t-fast) var(--ease),border-color var(--t-fast) var(--ease);
  position:relative;overflow:hidden;
}
.btn:hover{text-decoration:none}
.btn--primary{
  color:#03121f;background:linear-gradient(135deg,#63c6ff,var(--primary));
  box-shadow:0 8px 28px rgba(46,168,255,.35);
}
.btn--primary:hover{transform:translateY(-2px);box-shadow:0 14px 36px rgba(46,168,255,.5)}
.btn--primary::after{
  content:"";position:absolute;top:0;bottom:0;left:-60%;width:40%;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.5),transparent);
  transform:skewX(-18deg);opacity:0;
}
.btn--primary:hover::after{animation:sheen 600ms var(--ease) forwards}
@keyframes sheen{from{left:-60%;opacity:1}to{left:130%;opacity:0}}
.btn--ghost{
  color:var(--text);border-color:var(--line);background:rgba(255,255,255,.03);
}
.btn--ghost:hover{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.2);transform:translateY(-2px)}
.btn--block{width:100%}
.btn[disabled],.btn.is-disabled{opacity:.45;pointer-events:none}
.btn-row{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:40px;border-top:1px solid transparent;
  background:linear-gradient(180deg,rgba(11,17,30,.6),rgba(5,7,14,1));
  position:relative;z-index:1;
}
.site-footer::before{
  content:"";position:absolute;left:0;right:0;top:-1px;height:1px;
  background:linear-gradient(90deg,transparent,rgba(46,168,255,.5),rgba(52,229,200,.4),transparent);
}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:36px;padding:64px 0 40px}
.foot-brand p{margin-top:16px;font-size:14px;color:var(--text-3);max-width:30em}
.foot-col h3{font-size:14px;letter-spacing:.1em;color:var(--text-2);margin-bottom:16px;font-weight:700}
.foot-col ul{display:grid;gap:10px}
.foot-col a{font-size:14px;color:var(--text-3)}
.foot-col a:hover{color:var(--link)}
.contact-line{font-size:14px;color:var(--text-3)}
.foot-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
  padding:20px 0 28px;border-top:1px solid var(--line-2);
  font-size:12.5px;color:rgba(226,236,255,.4);letter-spacing:.04em;
}

/* ---------- 响应式 ---------- */
@media (max-width:1439px){
  .container{max-width:1280px}
}
@media (max-width:1023px){
  .section{padding:72px 0}
  .split{grid-template-columns:1fr;gap:28px}
  .cta-grid{grid-template-columns:1fr;gap:26px}
  .cta-banner{padding:34px 26px}
  .foot-grid{grid-template-columns:1fr 1fr;gap:30px;padding:52px 0 32px}
  .metrics__grid{grid-template-columns:repeat(2,1fr)}
  .metric:nth-child(3)::before{display:none}
  .metric{border-top:1px solid var(--line-2)}
  .metric:nth-child(1),.metric:nth-child(2){border-top:0}
  .poster-card{flex-basis:210px}
}
@media (max-width:900px){
  .nav-toggle{display:inline-flex}
  .pill-nav{padding-right:8px}
  .nav-links{
    position:absolute;top:calc(100% + 10px);left:12px;right:12px;
    flex-direction:column;align-items:stretch;gap:0;
    padding:10px;border-radius:var(--r-m);
    border:1px solid var(--line);
    background:linear-gradient(160deg,rgba(11,17,30,.97),rgba(8,12,22,.96));
    backdrop-filter:blur(18px);box-shadow:var(--shadow-1);
    opacity:0;visibility:hidden;transform:translateY(-8px);
    transition:opacity var(--t-fast) var(--ease),transform var(--t-fast) var(--ease),visibility var(--t-fast);
  }
  .nav-links.is-open{opacity:1;visibility:visible;transform:translateY(0)}
  .nav-links a{padding:14px 12px;border-bottom:1px solid var(--line-2);border-radius:10px;font-size:15px}
  .nav-links a:last-of-type{border-bottom:0}
  .nav-links a.is-active::after{display:none}
  .nav-links a.is-active{background:rgba(46,168,255,.12);color:#fff}
  .nav-cta{margin:10px 0 2px;justify-content:center;width:100%}
  .shell-header{padding:0 12px}
}
@media (max-width:767px){
  .section{padding:56px 0}
  body{font-size:15px}
  .page-hero{padding:128px 0 44px;min-height:36vh}
  .page-hero__lead{font-size:15.5px}
  .timeline::before{left:29px}
  .tl-item{grid-template-columns:44px 1fr;gap:18px;padding:18px 0}
  .tl-item::after{left:29px}
  .tl-num{font-size:40px;-webkit-text-stroke-width:1px}
  .tl-item:hover{transform:none}
  .poster-card{flex-basis:168px}
  .rail-wrap::before,.rail-wrap::after{display:none}
  .faq-q{font-size:15.5px;padding:17px 16px}
  .faq-a p{padding:0 16px 18px}
  .cta-banner{padding:26px 18px;border-radius:var(--r-m)}
  .btn{width:100%}
  .btn-row{gap:10px}
  .foot-grid{grid-template-columns:1fr;padding:44px 0 26px}
  .foot-bottom{justify-content:flex-start}
  .pill-nav{background:rgba(12,18,32,.92);backdrop-filter:none}
  .faq-item,.cta-banner{backdrop-filter:none;background:rgba(12,18,32,.86)}
  body::after{display:none}
}
@media (max-width:519px){
  .metrics__grid{grid-template-columns:1fr}
  .metric+.metric::before{display:none}
  .metric{padding:18px 4px;border-top:1px solid var(--line-2)}
  .metric:first-child{border-top:0}
  .page-hero h1{font-size:28px}
  .brand-text{font-size:16px}
  .brand-text em{font-size:12.5px}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important;scroll-behavior:auto !important}
}

/* roulang page: category3 */
:root{
  --bg:#05070e;
  --bg-soft:#080c16;
  --bg-soft-2:#0b111e;
  --brand:#2ea8ff;
  --brand-deep:#1b7fd6;
  --brand-soft:#7fd0ff;
  --mint:#34e5c8;
  --coral:#ff4d6d;
  --text:#e9f1ff;
  --muted:rgba(226,236,255,.72);
  --dim:rgba(226,236,255,.52);
  --faint:rgba(226,236,255,.36);
  --line:rgba(255,255,255,.09);
  --line-strong:rgba(255,255,255,.16);
  --glass:linear-gradient(160deg,rgba(255,255,255,.06),rgba(255,255,255,.02));
  --r-sm:10px;
  --r-md:18px;
  --r-lg:24px;
  --r-pill:999px;
  --sh-1:0 18px 40px -18px rgba(0,0,0,.85);
  --sh-2:0 0 24px rgba(46,168,255,.28);
  --sh-btn:0 8px 28px rgba(46,168,255,.35);
  --ease:cubic-bezier(.22,.8,.2,1);
  --t-fast:200ms var(--ease);
  --t-card:320ms var(--ease);
  --sec-y:96px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;padding:0;background:var(--bg);color:var(--muted);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;line-height:1.75;letter-spacing:0;overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
body::before{
  content:"";position:fixed;inset:0;pointer-events:none;z-index:0;
  background:
    radial-gradient(900px 620px at 6% 0%,rgba(18,42,88,.55),transparent 62%),
    radial-gradient(760px 520px at 98% 94%,rgba(46,168,255,.13),transparent 64%);
}
body::after{
  content:"";position:fixed;inset:0;pointer-events:none;z-index:0;opacity:.03;
  background-image:repeating-linear-gradient(0deg,rgba(255,255,255,.7) 0 1px,transparent 1px 3px);
}
img{max-width:100%;height:auto;display:block}
a{color:var(--brand-soft);text-decoration:none;transition:color var(--t-fast)}
a:hover{color:#bce8ff;text-decoration:underline;text-underline-offset:3px}
h1,h2,h3,h4{color:var(--text);font-weight:800;letter-spacing:-.02em;margin:0;line-height:1.3}
h1{font-size:clamp(34px,4.6vw,56px);font-weight:900}
h2{font-size:clamp(24px,3vw,36px)}
h3{font-size:clamp(18px,2vw,20px)}
p{margin:0 0 1em}
ul{margin:0;padding:0;list-style:none}
button{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--mint);outline-offset:2px;border-radius:4px}
::selection{background:rgba(46,168,255,.35);color:#fff}
::-webkit-scrollbar{width:10px;height:10px}
::-webkit-scrollbar-track{background:#070a13}
::-webkit-scrollbar-thumb{background:linear-gradient(180deg,rgba(46,168,255,.6),rgba(52,229,200,.45));border-radius:999px;border:2px solid #070a13}
.grid-container{max-width:1280px!important;padding-left:24px!important;padding-right:24px!important}
.page-main{position:relative;z-index:1}
/* ============ 导航 ============ */
.shell-header{position:sticky;top:12px;z-index:80;padding:0 20px}
.pill-nav{
  max-width:1280px;margin:0 auto;height:68px;padding:0 14px 0 20px;
  display:flex;align-items:center;gap:16px;
  border-radius:var(--r-pill);
  background:rgba(10,15,28,.74);
  border:1px solid var(--line);
  backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  box-shadow:var(--sh-1);
  transition:height .28s var(--ease),background .28s var(--ease),border-color .28s var(--ease);
}
.shell-header.is-scrolled .pill-nav{height:56px;background:rgba(8,12,22,.92);border-color:var(--line-strong)}
.brand{display:inline-flex;align-items:center;gap:10px;text-decoration:none;color:#fff;flex:0 0 auto}
.brand:hover{text-decoration:none;color:#fff}
.brand-mark{width:26px;height:26px;border-radius:9px;flex:0 0 auto;background:linear-gradient(135deg,var(--brand),var(--mint));box-shadow:0 0 18px rgba(46,168,255,.6)}
.brand-text{display:inline-flex;align-items:baseline;font-size:17px;font-weight:800;letter-spacing:-.01em;white-space:nowrap}
.brand-text b{font-weight:900}
.brand-text i{font-style:normal;font-weight:600;color:var(--brand-soft);margin:0 1px}
.brand-text em{font-style:normal;font-weight:700;color:rgba(226,236,255,.82)}
.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 13px;
  border-radius:var(--r-pill);font-size:14.5px;color:rgba(226,236,255,.72);text-decoration:none;
  transition:color var(--t-fast),background var(--t-fast);white-space:nowrap;
}
.nav-links a:hover{color:#fff;background:rgba(255,255,255,.06);text-decoration:none}
.nav-links a.is-active{color:#eaf6ff}
.nav-links a.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:3px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--mint),var(--brand));box-shadow:0 0 10px rgba(52,229,200,.7);
}
.nav-links a.nav-cta{
  height:42px;padding:0 20px;margin-left:8px;font-weight:700;color:#04121f!important;
  background:linear-gradient(135deg,var(--brand),var(--brand-deep));
  box-shadow:var(--sh-btn);transition:transform var(--t-fast),box-shadow var(--t-fast);
}
.nav-links a.nav-cta:hover{transform:translateY(-2px);box-shadow:0 14px 36px rgba(46,168,255,.5)}
.nav-links a.nav-cta::after{display:none}
.nav-toggle{display:none;align-items:center;justify-content:center;width:44px;height:44px;margin-left:auto;border-radius:var(--r-pill);border:1px solid var(--line);background:rgba(255,255,255,.05);cursor:pointer}
.nav-toggle span{position:relative;display:block;width:16px;height:2px;border-radius:2px;background:#dce9ff}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:16px;height:2px;border-radius:2px;background:#dce9ff;transition:transform var(--t-fast),opacity var(--t-fast)}
.nav-toggle span::before{top:-5px}
.nav-toggle span::after{top:5px}
.nav-toggle[aria-expanded="true"] span{background:transparent}
.nav-toggle[aria-expanded="true"] span::before{transform:translateY(5px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span::after{transform:translateY(-5px) rotate(-45deg)}
/* ============ 页头 Banner ============ */
.page-hero{position:relative;overflow:hidden;min-height:40vh;display:flex;align-items:flex-end;padding:150px 0 56px;margin-top:-80px}
.page-hero__bg{position:absolute;inset:0;background:url('/assets/images/backpic/back-2.webp') center/cover no-repeat;z-index:0}
.page-hero__bg::after{
  content:"";position:absolute;inset:0;
  background:
    linear-gradient(180deg,rgba(5,7,14,.86) 0%,rgba(5,7,14,.78) 42%,rgba(5,7,14,.96) 88%,#05070e 100%),
    radial-gradient(58% 62% at 14% 24%,rgba(46,168,255,.24),transparent 70%);
}
.page-hero .grid-container{position:relative;z-index:2}
.crumbs{display:flex;align-items:center;gap:8px;font-size:12.5px;letter-spacing:.08em;color:var(--faint);margin-bottom:18px}
.crumbs a{color:var(--dim);text-decoration:none}
.crumbs a:hover{color:var(--brand-soft);text-decoration:none}
.page-hero h1{max-width:16em;margin-bottom:18px}
.page-hero h1 span{color:var(--brand-soft)}
.hero-lead{max-width:640px;font-size:17px;color:var(--muted);margin-bottom:28px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px}
/* ============ 按钮 ============ */
.btn{
  position:relative;display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:var(--r-pill);border:1px solid transparent;
  font-size:15px;font-weight:700;cursor:pointer;overflow:hidden;text-decoration:none;
  transition:transform var(--t-fast),box-shadow var(--t-fast),background var(--t-fast),border-color var(--t-fast),color var(--t-fast);
}
.btn:hover{text-decoration:none}
.btn-primary{background:linear-gradient(135deg,var(--brand),var(--brand-deep));color:#04121f;box-shadow:var(--sh-btn)}
.btn-primary:hover{transform:translateY(-2px);color:#04121f;box-shadow:0 14px 36px rgba(46,168,255,.5)}
.btn-primary::after{content:"";position:absolute;top:0;left:-130%;width:58%;height:100%;background:linear-gradient(100deg,transparent,rgba(255,255,255,.5),transparent);transform:skewX(-18deg)}
.btn-primary:hover::after{animation:sheen 600ms var(--ease)}
@keyframes sheen{to{left:135%}}
.btn-ghost{background:rgba(255,255,255,.05);border-color:var(--line-strong);color:#dce9ff}
.btn-ghost:hover{background:rgba(255,255,255,.1);color:#fff;transform:translateY(-2px)}
.btn:active{transform:translateY(0)}
.btn[disabled]{opacity:.45;cursor:not-allowed}
/* ============ 统计条 ============ */
.metric-bar{padding:0 0 var(--sec-y)}
.metric-band{
  display:grid;grid-template-columns:repeat(4,1fr);
  border-radius:var(--r-lg);border:1px solid var(--line);
  background:var(--glass);backdrop-filter:blur(16px) saturate(140%);
  box-shadow:var(--sh-1);overflow:hidden;
}
.metric-item{padding:26px 24px;border-left:1px solid var(--line)}
.metric-item:first-child{border-left:0}
.metric-num{display:block;font-size:clamp(24px,2.6vw,32px);font-weight:900;color:#fff;letter-spacing:-.02em;font-variant-numeric:tabular-nums}
.metric-num em{font-style:normal;font-size:15px;font-weight:700;color:var(--mint);margin-left:4px}
.metric-label{display:block;font-size:12.5px;letter-spacing:.08em;color:var(--faint);margin-top:6px}
/* ============ 板块通用 ============ */
.section{padding:var(--sec-y) 0}
.section--soft{background:linear-gradient(180deg,rgba(8,12,22,0),rgba(8,12,22,.9) 30%,rgba(8,12,22,.9) 70%,rgba(8,12,22,0))}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;flex-wrap:wrap}
.sec-head h2{position:relative;padding-left:16px}
.sec-head h2::before{content:"";position:absolute;left:0;top:.2em;bottom:.2em;width:3px;border-radius:3px;background:linear-gradient(180deg,var(--mint),var(--brand))}
.sec-sub{margin:10px 0 0 16px;font-size:14.5px;color:var(--dim)}
.sec-link{font-size:14px;color:var(--brand-soft);white-space:nowrap}
.sec-link::after{content:" →"}
/* ============ 模块标签 ============ */
.modules-panel{display:flex;flex-wrap:wrap;gap:12px}
.m-tag{
  display:inline-flex;align-items:center;gap:10px;height:46px;padding:0 8px 0 18px;
  border-radius:var(--r-pill);border:1px solid var(--line);background:rgba(255,255,255,.04);
  color:#dbe9ff;font-size:14.5px;font-weight:600;
  transition:transform var(--t-fast),border-color var(--t-fast),background var(--t-fast),box-shadow var(--t-fast);
}
.m-tag b{
  display:inline-flex;align-items:center;justify-content:center;min-width:30px;height:30px;padding:0 8px;
  border-radius:var(--r-pill);background:rgba(46,168,255,.16);color:var(--brand-soft);
  font-size:12px;font-weight:800;font-variant-numeric:tabular-nums;
}
.m-tag:hover{transform:translateY(-3px);border-color:rgba(46,168,255,.5);background:rgba(46,168,255,.1);box-shadow:var(--sh-2)}
.modules-copy p{font-size:15.5px}
.modules-copy ul{margin-top:18px}
.modules-copy li{position:relative;padding-left:20px;margin-bottom:10px;font-size:15px}
.modules-copy li::before{content:"";position:absolute;left:0;top:.66em;width:8px;height:8px;border-radius:2px;background:var(--mint);box-shadow:0 0 10px rgba(52,229,200,.6)}
/* ============ 棋盘图文 ============ */
.board-row{margin-bottom:80px}
.board-row:last-child{margin-bottom:0}
.board-media img{
  width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:22px;
  border:1px solid var(--line);box-shadow:var(--sh-1);
  transition:transform var(--t-card),box-shadow var(--t-card),border-color var(--t-card);
}
.board-row:hover .board-media img{transform:scale(1.02);border-color:rgba(46,168,255,.42);box-shadow:var(--sh-1),var(--sh-2)}
.board-copy h3{margin:16px 0 12px}
.board-copy p{font-size:15.5px;color:var(--muted)}
.chip-list{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}
.chip-list li{
  display:inline-flex;align-items:center;height:32px;padding:0 14px;border-radius:var(--r-pill);
  border:1px solid var(--line);background:rgba(255,255,255,.04);
  font-size:13px;color:var(--dim);letter-spacing:.02em;
}
/* ============ 标签徽章 ============ */
.tag{
  display:inline-flex;align-items:center;gap:7px;height:28px;padding:0 13px;border-radius:var(--r-pill);
  font-size:12px;letter-spacing:.06em;font-weight:600;
  background:rgba(46,168,255,.14);border:1px solid rgba(46,168,255,.35);color:#cbe8ff;
}
.tag::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--brand)}
.tag--live{background:rgba(255,77,109,.14);border-color:rgba(255,77,109,.4);color:#ffc9d3}
.tag--live::before{background:var(--coral)}
.tag--score{background:rgba(52,229,200,.13);border-color:rgba(52,229,200,.38);color:#b6f4e8}
.tag--score::before{background:var(--mint)}
/* ============ FAQ ============ */
.faq-wrap{max-width:900px;margin:0 auto}
.faq-item{
  position:relative;border:1px solid var(--line);border-radius:var(--r-md);
  background:var(--glass);backdrop-filter:blur(16px) saturate(140%);
  margin-bottom:14px;overflow:hidden;transition:border-color var(--t-fast),box-shadow var(--t-fast);
}
.faq-item:hover{border-color:var(--line-strong)}
.faq-item[open]{border-color:rgba(46,168,255,.36);box-shadow:0 18px 40px -22px rgba(0,0,0,.9),var(--sh-2)}
.faq-item::before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:linear-gradient(180deg,var(--mint),var(--brand));opacity:0;transition:opacity var(--t-fast)}
.faq-item[open]::before{opacity:1}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 22px;cursor:pointer;list-style:none;
  font-size:16px;font-weight:700;color:var(--text);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary i{
  position:relative;flex:0 0 auto;width:24px;height:24px;border-radius:50%;
  border:1px solid rgba(46,168,255,.4);background:rgba(46,168,255,.12);
  transition:transform var(--t-card),background var(--t-card);
}
.faq-item summary i::before,.faq-item summary i::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--brand-soft);border-radius:2px;
  transform:translate(-50%,-50%);
}
.faq-item summary i::before{width:10px;height:2px}
.faq-item summary i::after{width:2px;height:10px}
.faq-item[open] summary i{transform:rotate(45deg);background:rgba(52,229,200,.18)}
.faq-body{padding:0 22px 22px;font-size:15px;color:var(--muted)}
.faq-body p:last-child{margin-bottom:0}
/* ============ CTA ============ */
.cta-panel{
  position:relative;overflow:hidden;border-radius:var(--r-lg);border:1px solid var(--line);
  background:var(--glass);backdrop-filter:blur(16px) saturate(140%);
  box-shadow:var(--sh-1);padding:48px 44px;
}
.cta-panel::before{
  content:"";position:absolute;left:-10%;top:-40%;width:52%;height:150%;
  background:radial-gradient(closest-side,rgba(46,168,255,.24),transparent 72%);
  pointer-events:none;
}
.cta-panel h2{margin-bottom:14px}
.cta-panel p{font-size:15.5px;max-width:36em}
.cta-form{position:relative;z-index:1}
.field-label{display:block;font-size:13px;letter-spacing:.08em;color:var(--dim);margin-bottom:10px}
.field-row{display:flex;gap:12px}
.field-row input{
  flex:1 1 auto;min-width:0;height:48px;padding:0 18px;border-radius:var(--r-pill);
  background:rgba(6,10,20,.85);border:1px solid var(--line);color:var(--text);
  font-size:15px;transition:border-color var(--t-fast),box-shadow var(--t-fast);
}
.field-row input::placeholder{color:rgba(226,236,255,.3)}
.field-row input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 4px rgba(46,168,255,.18)}
.form-hint{font-size:12.5px;color:var(--faint);margin:12px 0 0;line-height:1.7}
/* ============ 页脚 ============ */
.site-footer{position:relative;z-index:1;margin-top:0;padding:72px 0 32px;border-top:1px solid var(--line);background:linear-gradient(180deg,rgba(8,12,22,0),rgba(8,12,22,.92))}
.site-footer::before{content:"";position:absolute;left:0;right:0;top:-1px;height:1px;background:linear-gradient(90deg,transparent,rgba(46,168,255,.6),rgba(52,229,200,.5),transparent)}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px}
.foot-brand p{font-size:14px;color:var(--dim);margin:18px 0 0;max-width:32em}
.foot-col h3{font-size:15px;margin-bottom:16px;letter-spacing:0}
.foot-col ul li{margin-bottom:10px}
.foot-col ul li a{font-size:14px;color:var(--dim)}
.foot-col ul li a:hover{color:var(--brand-soft)}
.contact-line{font-size:14px;color:var(--dim)}
.foot-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  margin-top:48px;padding-top:20px;border-top:1px solid var(--line);
  font-size:12.5px;color:var(--faint);letter-spacing:.04em;
}
/* ============ 响应式 ============ */
@media (max-width:1200px){
  :root{--sec-y:80px}
}
@media (max-width:1023px){
  :root{--sec-y:72px}
  .metric-band{grid-template-columns:repeat(2,1fr)}
  .metric-item:nth-child(3){border-left:0}
  .metric-item:nth-child(n+3){border-top:1px solid var(--line)}
  .board-row{margin-bottom:64px}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:900px){
  .nav-toggle{display:inline-flex}
  .nav-links{
    position:fixed;left:12px;right:12px;top:84px;
    flex-direction:column;align-items:stretch;gap:0;margin-left:0;
    padding:10px;border-radius:20px;background:rgba(8,12,22,.97);
    border:1px solid var(--line);box-shadow:var(--sh-1);
    backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
    display:none;max-height:calc(100vh - 120px);overflow:auto;
  }
  .nav-links.is-open{display:flex}
  .nav-links a{height:50px;border-radius:12px;padding:0 16px;border-bottom:1px solid rgba(255,255,255,.06);font-size:15px}
  .nav-links a:last-child{border-bottom:0}
  .nav-links a.is-active::after{display:none}
  .nav-links a.nav-cta{margin:10px 0 4px;justify-content:center;border-bottom:0}
}
@media (max-width:767px){
  :root{--sec-y:56px}
  .grid-container{padding-left:16px!important;padding-right:16px!important}
  .shell-header{padding:0 12px;top:8px}
  .pill-nav{height:60px;padding:0 10px 0 14px}
  .shell-header.is-scrolled .pill-nav{height:54px}
  .brand-text{font-size:15.5px}
  .page-hero{padding:120px 0 44px;min-height:0}
  .hero-lead{font-size:16px}
  .hero-actions .btn{width:100%}
  .metric-item{padding:20px 16px}
  .cta-panel{padding:32px 20px}
  .field-row{flex-direction:column}
  .field-row .btn{width:100%}
  .foot-grid{grid-template-columns:1fr;gap:28px}
  .foot-bottom{flex-direction:column;align-items:flex-start;gap:8px}
  .board-media img{aspect-ratio:16/9;border-radius:18px}
  .board-row{margin-bottom:48px}
  body::after{display:none}
}
@media (max-width:520px){
  h1{font-size:29px}
  .sec-head{margin-bottom:28px}
  .m-tag{font-size:13.5px;height:42px;padding-left:14px}
  .metric-band{grid-template-columns:1fr}
  .metric-item{border-left:0}
  .metric-item + .metric-item{border-top:1px solid var(--line)}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important;scroll-behavior:auto!important}
}

/* roulang page: category4 */
:root{
  --bg:#05070e;
  --bg-2:#080c16;
  --bg-3:#0b111e;
  --primary:#2ea8ff;
  --primary-deep:#1b6fd8;
  --coral:#ff4d6d;
  --mint:#34e5c8;
  --link:#7fd0ff;
  --text:#e6eeff;
  --text-strong:#ffffff;
  --muted:rgba(226,236,255,.72);
  --muted-2:rgba(226,236,255,.48);
  --line:rgba(255,255,255,.09);
  --line-2:rgba(255,255,255,.14);
  --glass:linear-gradient(160deg,rgba(255,255,255,.06),rgba(255,255,255,.02));
  --radius-s:10px;
  --radius-m:18px;
  --radius-l:24px;
  --shadow-1:0 18px 40px -18px rgba(0,0,0,.85);
  --shadow-2:0 0 24px rgba(46,168,255,.28);
  --shadow-glow:0 8px 28px rgba(46,168,255,.35);
  --ease:cubic-bezier(.22,.8,.2,1);
  --container:1280px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
body::before{
  content:"";position:fixed;inset:0;z-index:0;pointer-events:none;
  background:
    radial-gradient(58% 42% at 6% 0%,rgba(46,168,255,.12),transparent 62%),
    radial-gradient(52% 44% at 100% 100%,rgba(46,168,255,.08),transparent 60%);
}
body::after{
  content:"";position:fixed;inset:0;z-index:1;pointer-events:none;opacity:.45;
  background:repeating-linear-gradient(180deg,rgba(255,255,255,.028) 0 1px,transparent 1px 3px);
}
img{max-width:100%;display:block;height:auto}
a{color:var(--link);text-decoration:none;transition:color .2s var(--ease),text-shadow .2s var(--ease)}
a:hover{color:#a9e2ff;text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:3px;text-shadow:0 0 12px rgba(127,208,255,.45)}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;color:var(--text-strong);font-weight:800;letter-spacing:-.02em;line-height:1.25}
p{margin:0}
button,input,select,textarea{font:inherit;color:inherit}
::selection{background:rgba(46,168,255,.35);color:#fff}
::-webkit-scrollbar{width:10px;height:10px}
::-webkit-scrollbar-track{background:#070b14}
::-webkit-scrollbar-thumb{background:linear-gradient(180deg,#2ea8ff,#1b4f9c);border-radius:999px;border:2px solid #070b14}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;position:relative;z-index:2}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}

/* ===== 悬浮胶囊导航 ===== */
.shell-header{position:sticky;top:0;z-index:60;padding:12px 20px 0;background:linear-gradient(180deg,rgba(5,7,14,.9),rgba(5,7,14,0))}
.pill-nav{
  max-width:var(--container);margin:0 auto;height:68px;display:flex;align-items:center;gap:20px;
  padding:0 12px 0 20px;border-radius:999px;border:1px solid var(--line);
  background:linear-gradient(160deg,rgba(255,255,255,.07),rgba(255,255,255,.02)),rgba(8,12,22,.78);
  backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  box-shadow:var(--shadow-1);
  transition:height .28s var(--ease),border-color .28s var(--ease);
}
.shell-header.is-scrolled .pill-nav{height:56px;border-color:var(--line-2)}
.brand{display:inline-flex;align-items:center;gap:10px;text-decoration:none;flex:0 0 auto}
.brand:hover{text-decoration:none}
.brand-mark{
  width:30px;height:30px;border-radius:9px;flex:0 0 auto;
  background:linear-gradient(140deg,#2ea8ff,#0d4b93);
  box-shadow:0 0 18px rgba(46,168,255,.6),inset 0 0 0 1px rgba(255,255,255,.22);
  position:relative;
}
.brand-mark::after{content:"";position:absolute;inset:9px;border-radius:3px;background:rgba(5,7,14,.72)}
.brand-text{display:inline-flex;align-items:baseline;gap:2px;font-size:18px;line-height:1;letter-spacing:-.02em;white-space:nowrap}
.brand-text b{color:#fff;font-weight:900}
.brand-text i{color:var(--primary);font-style:normal;font-weight:600;font-size:15px;letter-spacing:.02em}
.brand-text em{color:var(--muted);font-style:normal;font-weight:700;font-size:14px}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-links>a{
  position:relative;display:inline-flex;align-items:center;height:40px;padding:0 13px;border-radius:999px;
  color:var(--muted);font-size:14.5px;font-weight:600;white-space:nowrap;
  transition:color .2s var(--ease),background .2s var(--ease);
}
.nav-links>a:hover{color:#fff;background:rgba(255,255,255,.07);text-decoration:none;text-shadow:none}
.nav-links>a.is-active{color:#fff}
.nav-links>a.is-active::after{
  content:"";position:absolute;left:13px;right:13px;bottom:3px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,transparent,var(--mint),transparent);
  box-shadow:0 0 12px rgba(52,229,200,.75);
}
.nav-cta{
  margin-left:8px;height:44px;padding:0 22px !important;border-radius:999px !important;
  background:linear-gradient(135deg,var(--primary),var(--primary-deep)) !important;
  color:#fff !important;font-weight:800 !important;
  box-shadow:var(--shadow-glow);position:relative;overflow:hidden;
}
.nav-cta:hover{transform:translateY(-1px);text-decoration:none;text-shadow:none}
.nav-toggle{
  display:none;margin-left:auto;width:46px;height:46px;border-radius:999px;border:1px solid var(--line);
  background:rgba(255,255,255,.05);cursor:pointer;position:relative;
}
.nav-toggle span,.nav-toggle span::before,.nav-toggle span::after{
  position:absolute;left:50%;width:18px;height:2px;border-radius:2px;background:var(--text);
  transform:translateX(-50%);transition:transform .24s var(--ease),opacity .24s var(--ease);
}
.nav-toggle span{top:50%;margin-top:-1px}
.nav-toggle span::before{content:"";top:-6px;left:0;transform:none}
.nav-toggle span::after{content:"";top:6px;left:0;transform:none}
.nav-toggle[aria-expanded="true"] span{background:transparent}
.nav-toggle[aria-expanded="true"] span::before{transform:rotate(45deg);top:0}
.nav-toggle[aria-expanded="true"] span::after{transform:rotate(-45deg);top:0}

/* ===== 页头 Banner ===== */
.page-hero{position:relative;min-height:340px;height:44vh;display:flex;align-items:flex-end;overflow:hidden;margin-top:-80px;padding-top:80px}
.page-hero .hero-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;filter:saturate(112%) brightness(.92)}
.page-hero .hero-mask{
  position:absolute;inset:0;
  background:
    linear-gradient(180deg,rgba(5,7,14,.86) 0%,rgba(5,7,14,.42) 42%,rgba(5,7,14,.96) 100%),
    radial-gradient(70% 80% at 12% 30%,rgba(46,168,255,.22),transparent 65%);
}
.hero-inner{position:relative;z-index:2;padding:0 24px 52px;width:100%;max-width:var(--container);margin:0 auto}
.crumbs{display:flex;align-items:center;gap:8px;font-size:12px;letter-spacing:.06em;color:var(--muted-2);margin-bottom:16px}
.crumbs a{color:var(--muted-2)}
.crumbs a:hover{color:var(--link)}
.page-hero h1{font-size:clamp(34px,5vw,56px);font-weight:900;max-width:16em;text-shadow:0 8px 30px rgba(0,0,0,.6)}
.hero-lead{margin-top:14px;font-size:17px;color:var(--muted);max-width:44em}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.chip{
  display:inline-flex;align-items:center;gap:8px;height:32px;padding:0 14px;border-radius:999px;
  border:1px solid var(--line);background:rgba(12,18,32,.66);font-size:13px;color:var(--muted);
}
.chip::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--mint);box-shadow:0 0 10px rgba(52,229,200,.8)}
.chip.is-coral::before{background:var(--coral);box-shadow:0 0 10px rgba(255,77,109,.8)}
.chip.is-blue::before{background:var(--primary);box-shadow:0 0 10px rgba(46,168,255,.8)}

/* ===== 提示条 ===== */
.tip-bar{
  display:flex;align-items:center;gap:14px;margin-top:-26px;padding:16px 20px;border-radius:var(--radius-m);
  border:1px solid rgba(46,168,255,.28);background:linear-gradient(120deg,rgba(46,168,255,.16),rgba(46,168,255,.04));
  box-shadow:var(--shadow-1);font-size:14.5px;color:var(--muted);position:relative;z-index:5;
}
.tip-bar svg{flex:0 0 auto;color:var(--mint)}
.tip-bar b{color:#fff}

/* ===== 板块 ===== */
.section{padding:96px 0;position:relative}
.section-alt{background:var(--bg-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px}
.sec-title{display:flex;align-items:flex-start;gap:14px}
.sec-title::before{content:"";width:3px;height:30px;border-radius:3px;background:var(--mint);box-shadow:0 0 14px rgba(52,229,200,.85);flex:0 0 auto;margin-top:6px}
.sec-title h2{font-size:clamp(24px,3vw,34px)}
.sec-title p{margin-top:8px;font-size:14.5px;color:var(--muted-2)}
.sec-link{font-size:14px;font-weight:700;white-space:nowrap;color:var(--primary)}
.sec-link:hover{color:#a9e2ff}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:0 26px;border-radius:999px;border:1px solid transparent;
  font-size:15px;font-weight:800;cursor:pointer;position:relative;overflow:hidden;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease),border-color .2s var(--ease),opacity .2s var(--ease);
}
.btn:hover{text-decoration:none}
.btn-primary{background:linear-gradient(135deg,var(--primary),var(--primary-deep));color:#fff;box-shadow:var(--shadow-glow)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 12px 34px rgba(46,168,255,.45)}
.btn-primary::after{
  content:"";position:absolute;top:0;left:-60%;width:40%;height:100%;transform:skewX(-18deg);
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.35),transparent);opacity:0;
}
.btn-primary:hover::after{animation:sheen .6s var(--ease) forwards}
@keyframes sheen{0%{left:-60%;opacity:1}100%{left:130%;opacity:0}}
.btn-ghost{background:rgba(255,255,255,.03);border-color:var(--line-2);color:var(--text)}
.btn-ghost:hover{background:rgba(255,255,255,.08);transform:translateY(-2px);color:#fff;text-decoration:none}
.btn:focus-visible{outline:2px solid var(--mint);outline-offset:2px}
.btn[disabled]{opacity:.45;cursor:not-allowed}

/* ===== 对照表 ===== */
.table-wrap{
  border:1px solid var(--line);border-radius:var(--radius-l);overflow:hidden;
  background:linear-gradient(160deg,rgba(255,255,255,.05),rgba(255,255,255,.015));
  box-shadow:var(--shadow-1);overflow-x:auto;
}
table.cmp-table{width:100%;border-collapse:collapse;min-width:720px}
.cmp-table caption{text-align:left;padding:22px 26px 12px;font-size:14px;color:var(--muted-2);letter-spacing:.04em}
.cmp-table thead th{
  text-align:left;padding:16px 22px;font-size:13.5px;letter-spacing:.08em;color:var(--muted-2);
  font-weight:700;background:rgba(8,12,22,.72);border-bottom:1px solid var(--line);
}
.cmp-table thead th:first-child{color:#fff;font-weight:800}
.cmp-table tbody th{
  text-align:left;padding:18px 22px;font-size:15px;font-weight:800;color:#fff;white-space:nowrap;
  border-bottom:1px solid var(--line);
}
.cmp-table tbody td{
  padding:18px 22px;font-size:14.5px;color:var(--muted);border-bottom:1px solid var(--line);
  border-left:1px solid rgba(255,255,255,.05);
}
.cmp-table tbody tr{transition:background .24s var(--ease)}
.cmp-table tbody tr:hover{background:rgba(46,168,255,.09)}
.cmp-table tbody tr:last-child th,.cmp-table tbody tr:last-child td{border-bottom:0}
.cmp-table tbody td:last-child{color:#dff3ff;font-weight:600}
.cell-yes{color:var(--mint);font-weight:700}
.cell-no{color:var(--coral);font-weight:700}

/* ===== 错位卡片墙 ===== */
.wall{gap:24px}
.wall-col{display:flex;flex-direction:column;gap:24px}
.wall-col-b{margin-top:48px}
.wall-card{
  border:1px solid var(--line);border-radius:var(--radius-l);overflow:hidden;
  background:linear-gradient(160deg,rgba(255,255,255,.06),rgba(255,255,255,.02));
  box-shadow:var(--shadow-1);
  transition:transform .32s var(--ease),box-shadow .32s var(--ease),border-color .32s var(--ease);
}
.wall-card:hover{transform:translateY(-6px);border-color:rgba(46,168,255,.5);box-shadow:var(--shadow-1),var(--shadow-2)}
.wall-media{position:relative;aspect-ratio:16/9;overflow:hidden;background:linear-gradient(140deg,#0c1526,#131f36)}
.wall-media img{width:100%;height:100%;object-fit:cover;transition:transform .6s var(--ease)}
.wall-card:hover .wall-media img{transform:scale(1.05)}
.wall-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 40%,rgba(8,12,22,.78))}
.badge{
  position:absolute;top:14px;left:14px;z-index:2;display:inline-flex;align-items:center;gap:6px;
  height:28px;padding:0 12px;border-radius:999px;font-size:12px;font-weight:700;letter-spacing:.04em;
  background:rgba(8,12,22,.78);border:1px solid var(--line-2);color:#fff;
}
.badge::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--primary);box-shadow:0 0 8px rgba(46,168,255,.8)}
.badge.is-coral::before{background:var(--coral);box-shadow:0 0 8px rgba(255,77,109,.8)}
.badge.is-mint::before{background:var(--mint);box-shadow:0 0 8px rgba(52,229,200,.8)}
.wall-body{padding:22px 24px 26px}
.wall-body h3{font-size:19px}
.wall-body p{margin-top:10px;font-size:14.5px;color:var(--muted)}
.meta-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.meta-tags span{
  display:inline-flex;align-items:center;height:26px;padding:0 11px;border-radius:999px;
  border:1px solid var(--line);background:rgba(255,255,255,.03);font-size:12px;color:var(--muted-2);
}

/* ===== FAQ ===== */
.faq-list{max-width:900px;margin:0 auto;display:flex;flex-direction:column;gap:14px}
.faq-item{
  position:relative;border:1px solid var(--line);border-radius:var(--radius-m);overflow:hidden;
  background:linear-gradient(160deg,rgba(255,255,255,.05),rgba(255,255,255,.015));
  transition:border-color .24s var(--ease),background .24s var(--ease);
}
.faq-item::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--primary);
  opacity:0;box-shadow:0 0 18px rgba(46,168,255,.9);transition:opacity .24s var(--ease);
}
.faq-item[open]{border-color:rgba(46,168,255,.36)}
.faq-item[open]::before{opacity:1}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 24px;cursor:pointer;font-size:16px;font-weight:800;color:#fff;list-style:none;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";font-size:24px;line-height:1;color:var(--primary);font-weight:400;
  transition:transform .24s var(--ease);flex:0 0 auto;
}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-item .faq-body{padding:0 24px 22px;font-size:15px;color:var(--muted);max-width:64em}
.faq-item summary:focus-visible{outline:2px solid var(--mint);outline-offset:-2px}

/* ===== CTA + 表单 ===== */
.cta-band{
  position:relative;border:1px solid var(--line);border-radius:var(--radius-l);overflow:hidden;
  background:linear-gradient(160deg,rgba(255,255,255,.07),rgba(255,255,255,.02)),rgba(9,14,25,.85);
  box-shadow:var(--shadow-1);padding:44px;
}
.cta-band::before{
  content:"";position:absolute;top:-40%;left:-10%;width:60%;height:140%;pointer-events:none;
  background:radial-gradient(closest-side,rgba(46,168,255,.24),transparent 72%);
}
.cta-copy{position:relative;z-index:2}
.cta-copy h2{font-size:clamp(24px,3vw,34px);max-width:15em}
.cta-copy p{margin-top:14px;font-size:15.5px;color:var(--muted);max-width:34em}
.cta-list{margin-top:22px;display:flex;flex-direction:column;gap:10px}
.cta-list li{position:relative;padding-left:18px;font-size:14.5px;color:var(--muted)}
.cta-list li::before{content:"";position:absolute;left:0;top:10px;width:7px;height:7px;border-radius:2px;background:var(--mint);box-shadow:0 0 10px rgba(52,229,200,.75)}
.form-card{
  position:relative;z-index:2;border:1px solid var(--line);border-radius:var(--radius-m);
  background:rgba(7,11,20,.7);padding:26px;backdrop-filter:blur(10px);
}
.field{margin-bottom:16px}
.field label{display:block;font-size:13px;letter-spacing:.05em;color:var(--muted-2);margin-bottom:8px;font-weight:600}
.field input,.field select,.field textarea{
  width:100%;min-height:48px;padding:12px 14px;border-radius:12px;
  background:rgba(10,16,28,.86);border:1px solid var(--line);color:var(--text);font-size:15px;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease);
}
.field textarea{min-height:96px;resize:vertical;line-height:1.7}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--primary);background:rgba(12,20,34,.95);
  box-shadow:0 0 0 3px rgba(46,168,255,.18),0 0 18px rgba(46,168,255,.22);
}
.field input::placeholder,.field textarea::placeholder{color:rgba(226,236,255,.32)}
.form-msg{
  margin-top:14px;padding:12px 16px;border-radius:12px;font-size:14px;
  border:1px solid rgba(52,229,200,.35);background:rgba(52,229,200,.1);color:#c9fff4;
}

/* ===== 页脚 ===== */
.site-footer{position:relative;z-index:2;background:linear-gradient(180deg,rgba(8,12,22,0),rgba(6,9,17,.96) 22%);border-top:1px solid rgba(255,255,255,.06);padding:72px 0 28px;margin-top:24px}
.site-footer::before{content:"";position:absolute;top:0;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,rgba(46,168,255,.6),rgba(52,229,200,.4),transparent)}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:36px}
.foot-brand p{margin-top:16px;font-size:14.5px;color:var(--muted-2);max-width:30em}
.foot-col h3{font-size:15px;color:#fff;margin-bottom:16px;letter-spacing:.02em}
.foot-col ul{display:flex;flex-direction:column;gap:11px}
.foot-col a{font-size:14.5px;color:var(--muted-2)}
.foot-col a:hover{color:var(--link)}
.contact-line{font-size:14.5px;color:var(--muted-2)}
.foot-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--muted-2);letter-spacing:.04em;
}

/* ===== 响应式 ===== */
@media (max-width:1023px){
  .section{padding:72px 0}
  .pill-nav{gap:12px}
  .nav-links>a{padding:0 10px;font-size:14px}
  .nav-cta{padding:0 16px !important}
  .foot-grid{grid-template-columns:1fr 1fr;gap:30px}
  .cta-band{padding:34px}
}
@media (max-width:767px){
  body::after{display:none}
  .shell-header{padding:10px 12px 0}
  .pill-nav{padding:0 10px 0 14px;height:60px}
  .shell-header.is-scrolled .pill-nav{height:54px}
  .nav-toggle{display:block}
  .nav-links{
    position:absolute;left:0;right:0;top:calc(100% + 10px);
    display:none;flex-direction:column;align-items:stretch;gap:0;margin:0;
    padding:10px;border-radius:22px;border:1px solid var(--line-2);
    background:rgba(9,14,25,.96);backdrop-filter:blur(18px) saturate(140%);
    box-shadow:var(--shadow-1);
  }
  .nav-links.is-open{display:flex}
  .nav-links>a{height:50px;padding:0 14px;border-radius:14px;font-size:15px;border-bottom:1px solid rgba(255,255,255,.06)}
  .nav-links>a:last-of-type{border-bottom:0}
  .nav-links>a.is-active::after{left:14px;right:auto;width:22px;bottom:12px}
  .nav-cta{margin:8px 0 0 !important;justify-content:center;height:48px !important;border-radius:999px !important}
  .page-hero{margin-top:-70px;padding-top:70px;height:auto;min-height:380px}
  .hero-inner{padding-bottom:40px}
  .hero-lead{font-size:15.5px}
  .tip-bar{margin-top:-18px;font-size:13.5px;padding:14px 16px;align-items:flex-start}
  .section{padding:56px 0}
  .sec-head{flex-direction:column;align-items:flex-start;gap:12px;margin-bottom:26px}
  .wall-col-b{margin-top:0}
  .cta-band{padding:24px}
  .form-card{padding:20px;backdrop-filter:none;background:rgba(12,18,32,.86)}
  .foot-grid{grid-template-columns:1fr;gap:26px}
  .foot-bottom{flex-direction:column;align-items:flex-start;gap:8px}
  .btn{width:100%}
  .cmp-table thead th,.cmp-table tbody th,.cmp-table tbody td{padding:14px 16px}
}
@media (max-width:519px){
  .container{padding:0 16px}
  .hero-inner{padding-left:16px;padding-right:16px}
  .page-hero h1{font-size:32px}
  .brand-text{font-size:16px}
  .brand-text i{font-size:13px}
  .brand-text em{font-size:12.5px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important;scroll-behavior:auto !important}
}