/* roulang page: index */
/* ============ 设计变量 ============ */
:root{
  --bg-0:#060a14;
  --bg-1:#0a1020;
  --bg-2:#0f1729;
  --panel:rgba(255,255,255,.045);
  --panel-2:rgba(255,255,255,.075);
  --panel-3:rgba(255,255,255,.11);
  --line:rgba(255,255,255,.09);
  --line-2:rgba(255,255,255,.17);
  --t1:#e9effb;
  --t2:#a6b5cf;
  --t3:#74869f;
  --brand:#34d0f0;
  --brand-2:#5f8cff;
  --accent:#7c5cff;
  --warm:#ffb020;
  --good:#3ddc97;
  --r-xs:8px;
  --r-sm:12px;
  --r-md:18px;
  --r-lg:26px;
  --r-pill:999px;
  --sh-1:0 8px 24px rgba(0,0,0,.28);
  --sh-2:0 18px 48px rgba(0,0,0,.42);
  --sh-glow:0 12px 40px rgba(52,208,240,.22);
  --gap:22px;
  --sec:96px;
  --font:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;
}
/* ============ Reset ============ */
*,*::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(--t1);
  background:var(--bg-0);
  background-image:
    radial-gradient(1000px 520px at 12% -8%, rgba(52,208,240,.16), transparent 62%),
    radial-gradient(900px 480px at 92% 4%, rgba(124,92,255,.15), transparent 60%),
    linear-gradient(180deg,#060a14 0%,#0a1020 42%,#070c17 100%);
  background-attachment:fixed;
  overflow-x:hidden;
}
h1,h2,h3,h4,p,figure,blockquote,dl,dd{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
img{max-width:100%;display:block;height:auto;}
a{color:inherit;text-decoration:none;transition:color .22s ease,opacity .22s ease;}
button,input,textarea,select{font:inherit;color:inherit;}
button{cursor:pointer;border:none;background:none;}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:6px;}
::selection{background:rgba(52,208,240,.32);color:#fff;}
/* ============ 容器 ============ */
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.container-wide{width:100%;max-width:1360px;margin:0 auto;padding:0 24px;}
/* ============ 通用 ============ */
.section{padding:var(--sec) 0;position:relative;}
.section-tight{padding:64px 0;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--brand);font-weight:600;
  padding:7px 14px;border-radius:var(--r-pill);
  background:rgba(52,208,240,.09);
  border:1px solid rgba(52,208,240,.24);
}
.eyebrow i{font-size:12px;}
.sec-head{max-width:760px;margin-bottom:44px;}
.sec-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.sec-title{
  font-size:clamp(26px,3.4vw,40px);
  line-height:1.28;font-weight:800;letter-spacing:-.01em;
  margin:18px 0 14px;
  background:linear-gradient(120deg,#ffffff 12%,#c9dcff 58%,#8fd8ee 100%);
  -webkit-background-clip:text;background-clip:text;
  -webkit-text-fill-color:transparent;
}
.sec-desc{color:var(--t2);font-size:16.5px;line-height:1.85;}
.grad-text{
  background:linear-gradient(96deg,var(--brand),var(--brand-2) 55%,var(--accent));
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;
  color:transparent;
}
/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:14px 26px;border-radius:var(--r-pill);
  font-size:15px;font-weight:650;letter-spacing:.01em;
  border:1px solid transparent;
  transition:transform .22s ease,box-shadow .22s ease,background .22s ease,border-color .22s ease,color .22s ease;
  white-space:nowrap;
}
.btn i{font-size:14px;}
.btn-primary{
  background:linear-gradient(120deg,var(--brand),var(--brand-2));
  color:#04121c;
  box-shadow:var(--sh-glow);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 46px rgba(52,208,240,.36);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{
  background:var(--panel-2);
  border-color:var(--line-2);
  color:var(--t1);
  backdrop-filter:blur(10px);
}
.btn-ghost:hover{background:var(--panel-3);border-color:rgba(52,208,240,.45);color:#fff;transform:translateY(-2px);}
.btn-sm{padding:10px 20px;font-size:14px;}
.btn-block{width:100%;}
/* ============ 玻璃导航 ============ */
.site-header{position:fixed;inset:0 0 auto 0;z-index:120;transition:background .3s ease,box-shadow .3s ease;}
.nav-shell{
  background:rgba(8,13,26,.52);
  backdrop-filter:blur(20px) saturate(160%);
  -webkit-backdrop-filter:blur(20px) saturate(160%);
  border-bottom:1px solid rgba(255,255,255,.07);
  transition:background .3s ease,border-color .3s ease,box-shadow .3s ease;
}
.site-header.is-scrolled .nav-shell{
  background:rgba(6,10,20,.94);
  border-bottom-color:rgba(255,255,255,.12);
  box-shadow:0 14px 40px rgba(0,0,0,.5);
}
.nav-inner{
  display:flex;align-items:center;gap:28px;
  height:76px;
}
.brand{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.brand-mark{
  width:42px;height:42px;border-radius:13px;
  display:grid;place-items:center;
  font-size:19px;color:#04121c;font-weight:800;
  background:linear-gradient(135deg,var(--brand),var(--brand-2) 60%,var(--accent));
  box-shadow:0 8px 22px rgba(52,208,240,.34);
}
.brand-text{display:flex;flex-direction:column;line-height:1.18;}
.brand-name{font-size:17px;font-weight:750;letter-spacing:.01em;color:#fff;}
.brand-sub{font-size:11.5px;color:var(--t3);letter-spacing:.16em;text-transform:uppercase;}
.nav-menu{display:flex;align-items:center;gap:4px;margin-left:auto;}
.nav-menu a{
  position:relative;
  padding:9px 15px;border-radius:var(--r-pill);
  font-size:14.6px;font-weight:500;color:var(--t2);
  transition:color .2s ease,background .2s ease;
}
.nav-menu a:hover{color:#fff;background:rgba(255,255,255,.07);}
.nav-menu a.active{color:#fff;background:rgba(52,208,240,.14);box-shadow:inset 0 0 0 1px rgba(52,208,240,.3);}
.nav-actions{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.nav-search{
  display:flex;align-items:center;gap:9px;
  padding:9px 16px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.06);
  border:1px solid var(--line);
  color:var(--t3);font-size:14px;
  min-width:186px;
  transition:border-color .2s ease,background .2s ease;
}
.nav-search:hover{border-color:rgba(52,208,240,.4);background:rgba(255,255,255,.09);}
.nav-search i{color:var(--brand);font-size:13px;}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:13px;
  background:rgba(255,255,255,.07);border:1px solid var(--line);
  color:#fff;font-size:17px;
  place-items:center;
}
/* ============ Hero ============ */
.hero{
  position:relative;
  padding:172px 0 96px;
  overflow:hidden;
  isolation:isolate;
}
.hero::before{
  content:"";position:absolute;inset:0;z-index:-2;
  background-image:url("/assets/images/backpic/back-1.webp");
  background-size:cover;background-position:center;
  opacity:.34;
}
.hero::after{
  content:"";position:absolute;inset:0;z-index:-1;
  background:
    radial-gradient(760px 460px at 18% 24%, rgba(52,208,240,.22), transparent 66%),
    linear-gradient(180deg, rgba(6,10,20,.72) 0%, rgba(6,10,20,.88) 58%, var(--bg-0) 100%);
}
.hero-grid{
  display:grid;
  grid-template-columns:minmax(0,1.08fr) minmax(0,.92fr);
  gap:52px;align-items:center;
}
.hero-badge{
  display:inline-flex;align-items:center;gap:10px;
  padding:8px 16px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.07);
  border:1px solid rgba(255,255,255,.15);
  backdrop-filter:blur(12px);
  font-size:13.4px;color:#d8e4f7;
}
.hero-badge .dot{
  width:8px;height:8px;border-radius:50%;
  background:var(--good);box-shadow:0 0 0 4px rgba(61,220,151,.18);
  animation:pulse 2.2s infinite;
}
@keyframes pulse{
  0%,100%{box-shadow:0 0 0 4px rgba(61,220,151,.18);}
  50%{box-shadow:0 0 0 8px rgba(61,220,151,.05);}
}
.hero h1{
  font-size:clamp(30px,4.5vw,54px);
  line-height:1.2;font-weight:850;letter-spacing:-.02em;
  margin:22px 0 20px;
  color:#fff;
}
.hero-lead{
  max-width:620px;color:#c0cfe6;font-size:17px;line-height:1.9;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px;}
.hero-stats{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));
  gap:14px;margin-top:46px;max-width:620px;
}
.hero-stat{
  padding:18px 18px 16px;border-radius:var(--r-md);
  background:rgba(255,255,255,.055);
  border:1px solid var(--line);
  backdrop-filter:blur(12px);
  transition:transform .26s ease,border-color .26s ease,background .26s ease;
}
.hero-stat:hover{transform:translateY(-4px);border-color:rgba(52,208,240,.42);background:rgba(52,208,240,.08);}
.hero-stat .num{
  font-size:26px;font-weight:800;letter-spacing:-.02em;
  background:linear-gradient(110deg,var(--brand),var(--brand-2));
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;
}
.hero-stat .lbl{font-size:13px;color:var(--t3);margin-top:4px;}
/* Hero 右侧：赛事速览面板 */
.hero-panel{
  padding:24px;border-radius:var(--r-lg);
  background:linear-gradient(160deg,rgba(255,255,255,.1),rgba(255,255,255,.035));
  border:1px solid var(--line-2);
  backdrop-filter:blur(22px);
  box-shadow:var(--sh-2);
}
.hero-panel-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:18px;}
.hero-panel-head h3{font-size:16.5px;font-weight:700;color:#fff;}
.tag-live{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;font-weight:650;color:#ffd9a0;
  background:rgba(255,176,32,.14);
  border:1px solid rgba(255,176,32,.34);
  padding:4px 11px;border-radius:var(--r-pill);
}
.match-list{display:flex;flex-direction:column;gap:12px;}
.match-item{
  display:grid;grid-template-columns:56px minmax(0,1fr) auto;
  align-items:center;gap:14px;
  padding:14px;border-radius:var(--r-sm);
  background:rgba(255,255,255,.05);
  border:1px solid var(--line);
  transition:border-color .22s ease,background .22s ease,transform .22s ease;
}
.match-item:hover{border-color:rgba(52,208,240,.44);background:rgba(52,208,240,.08);transform:translateX(3px);}
.match-time{
  text-align:center;font-size:12.5px;color:var(--t3);
  border-right:1px solid var(--line);padding-right:8px;
}
.match-time b{display:block;font-size:15px;color:#fff;font-weight:700;}
.match-body .mt{font-size:14.6px;font-weight:620;color:#fff;line-height:1.5;}
.match-body .ms{font-size:12.6px;color:var(--t3);margin-top:2px;}
.match-score{
  font-size:15px;font-weight:750;color:var(--brand);
  font-variant-numeric:tabular-nums;
}
.hero-panel-foot{
  margin-top:18px;padding-top:16px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:12px;
}
.avatars{display:flex;align-items:center;}
.avatar{
  width:30px;height:30px;border-radius:50%;
  display:grid;place-items:center;
  font-size:12px;font-weight:700;color:#04121c;
  border:2px solid #0b1120;margin-left:-9px;
}
.avatar:first-child{margin-left:0;}
.av-1{background:linear-gradient(135deg,#34d0f0,#5f8cff);}
.av-2{background:linear-gradient(135deg,#7c5cff,#c07cff);}
.av-3{background:linear-gradient(135deg,#3ddc97,#34d0f0);}
.av-4{background:linear-gradient(135deg,#ffb020,#ff7a45);}
.hero-panel-foot span{font-size:13px;color:var(--t2);}
/* ============ 分类入口 ============ */
.topic-grid{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));
  gap:var(--gap);
}
.topic-card{
  position:relative;overflow:hidden;
  border-radius:var(--r-lg);
  background:var(--panel);
  border:1px solid var(--line);
  display:flex;flex-direction:column;
  transition:transform .3s ease,border-color .3s ease,box-shadow .3s ease;
}
.topic-card:hover{transform:translateY(-8px);border-color:rgba(52,208,240,.42);box-shadow:var(--sh-2);}
.topic-thumb{position:relative;aspect-ratio:16/10;overflow:hidden;}
.topic-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .55s ease;}
.topic-card:hover .topic-thumb img{transform:scale(1.07);}
.topic-thumb::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(6,10,20,.05),rgba(6,10,20,.86));
}
.topic-num{
  position:absolute;top:14px;left:14px;z-index:2;
  width:32px;height:32px;border-radius:10px;
  display:grid;place-items:center;
  font-size:13px;font-weight:750;color:#04121c;
  background:linear-gradient(135deg,var(--brand),var(--brand-2));
}
.topic-body{padding:20px 20px 22px;display:flex;flex-direction:column;flex:1;}
.topic-body h3{font-size:17.5px;font-weight:720;color:#fff;margin-bottom:9px;}
.topic-body p{font-size:14.2px;color:var(--t2);line-height:1.75;flex:1;}
.topic-link{
  display:inline-flex;align-items:center;gap:8px;
  margin-top:16px;font-size:14px;font-weight:620;color:var(--brand);
}
.topic-card:hover .topic-link{gap:12px;}
.topic-link i{font-size:12px;}
/* ============ 数据条 ============ */
.metrics{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));
  gap:var(--gap);
  padding:34px;
  border-radius:var(--r-lg);
  background:linear-gradient(150deg,rgba(52,208,240,.11),rgba(124,92,255,.09));
  border:1px solid var(--line-2);
  backdrop-filter:blur(16px);
}
.metric{text-align:center;padding:6px 10px;}
.metric .v{
  font-size:clamp(26px,3vw,36px);font-weight:830;letter-spacing:-.02em;
  background:linear-gradient(110deg,#ffffff,#9fdbef);
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;
}
.metric .k{font-size:13.4px;color:var(--t2);margin-top:6px;letter-spacing:.02em;}
.metric + .metric{border-left:1px solid var(--line);}
/* ============ 焦点赛事 ============ */
.focus-layout{
  display:grid;grid-template-columns:minmax(0,1.55fr) minmax(0,1fr);
  gap:var(--gap);
}
.focus-main{
  border-radius:var(--r-lg);overflow:hidden;
  border:1px solid var(--line);
  background:var(--panel);
  display:flex;flex-direction:column;
}
.focus-main-media{position:relative;aspect-ratio:16/8;overflow:hidden;}
.focus-main-media img{width:100%;height:100%;object-fit:cover;}
.focus-main-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(6,10,20,.1) 30%,rgba(6,10,20,.92));}
.focus-tag{
  position:absolute;top:18px;left:18px;z-index:2;
  padding:7px 14px;border-radius:var(--r-pill);
  font-size:12.6px;font-weight:650;color:#04121c;
  background:linear-gradient(120deg,var(--brand),var(--brand-2));
}
.focus-main-body{padding:26px 26px 28px;}
.focus-main-body h3{font-size:21px;font-weight:750;color:#fff;line-height:1.45;margin-bottom:12px;}
.focus-main-body p{color:var(--t2);font-size:15px;line-height:1.85;}
.focus-meta{display:flex;flex-wrap:wrap;gap:16px;margin-top:18px;font-size:13.2px;color:var(--t3);}
.focus-meta span{display:inline-flex;align-items:center;gap:7px;}
.focus-meta i{color:var(--brand);}
/* 排行列表 */
.rank-card{
  border-radius:var(--r-lg);
  border:1px solid var(--line);
  background:var(--panel);
  padding:24px;
  display:flex;flex-direction:column;
}
.rank-card h3{font-size:16.5px;font-weight:720;color:#fff;margin-bottom:6px;}
.rank-card .sub{font-size:13px;color:var(--t3);margin-bottom:18px;}
.rank-list{display:flex;flex-direction:column;gap:10px;}
.rank-item{
  display:grid;grid-template-columns:30px minmax(0,1fr) auto;
  align-items:center;gap:12px;
  padding:12px 14px;border-radius:var(--r-sm);
  background:rgba(255,255,255,.045);
  border:1px solid transparent;
  transition:background .22s ease,border-color .22s ease,transform .22s ease;
}
.rank-item:hover{background:rgba(52,208,240,.09);border-color:rgba(52,208,240,.32);transform:translateX(3px);}
.rank-no{
  width:26px;height:26px;border-radius:9px;display:grid;place-items:center;
  font-size:12.5px;font-weight:750;
  background:rgba(255,255,255,.09);color:var(--t2);
}
.rank-item.top .rank-no{background:linear-gradient(135deg,var(--brand),var(--brand-2));color:#04121c;}
.rank-name{font-size:14.4px;font-weight:600;color:#eaf1fd;}
.rank-name em{display:block;font-style:normal;font-size:12.2px;color:var(--t3);font-weight:400;margin-top:1px;}
.rank-count{
  font-size:12.5px;font-weight:650;color:var(--brand);
  background:rgba(52,208,240,.12);
  border:1px solid rgba(52,208,240,.26);
  padding:3px 10px;border-radius:var(--r-pill);
}
/* ============ 图文特性 ============ */
.feature-split{
  display:grid;grid-template-columns:minmax(0,.95fr) minmax(0,1.05fr);
  gap:56px;align-items:center;
}
.feature-media{position:relative;border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line-2);}
.feature-media img{width:100%;aspect-ratio:4/3.2;object-fit:cover;}
.feature-media .float-card{
  position:absolute;left:20px;bottom:20px;right:20px;
  padding:16px 18px;border-radius:var(--r-md);
  background:rgba(8,13,26,.78);
  border:1px solid var(--line-2);
  backdrop-filter:blur(16px);
  display:flex;align-items:center;gap:14px;
}
.feature-media .float-card .ic{
  width:42px;height:42px;border-radius:13px;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--brand),var(--accent));
  color:#04121c;font-size:17px;flex-shrink:0;
}
.feature-media .float-card b{display:block;font-size:14.6px;color:#fff;}
.feature-media .float-card span{font-size:12.8px;color:var(--t3);}
.feature-list{display:flex;flex-direction:column;gap:16px;margin-top:26px;}
.feature-item{
  display:flex;gap:15px;padding:17px 18px;border-radius:var(--r-md);
  background:var(--panel);border:1px solid var(--line);
  transition:border-color .24s ease,background .24s ease,transform .24s ease;
}
.feature-item:hover{border-color:rgba(52,208,240,.4);background:rgba(52,208,240,.07);transform:translateY(-3px);}
.feature-item .fi{
  width:40px;height:40px;border-radius:12px;flex-shrink:0;
  display:grid;place-items:center;font-size:16px;
  background:rgba(52,208,240,.13);color:var(--brand);
  border:1px solid rgba(52,208,240,.24);
}
.feature-item h4{font-size:15.6px;font-weight:700;color:#fff;margin-bottom:5px;}
.feature-item p{font-size:14px;color:var(--t2);line-height:1.72;}
/* ============ 最新信息（CMS） ============ */
.news-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:40px;}
.news-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:var(--gap);}
.news-card{
  display:flex;flex-direction:column;
  padding:24px;border-radius:var(--r-lg);
  background:var(--panel);border:1px solid var(--line);
  transition:transform .28s ease,border-color .28s ease,background .28s ease,box-shadow .28s ease;
}
.news-card:hover{transform:translateY(-6px);border-color:rgba(52,208,240,.4);background:rgba(52,208,240,.06);box-shadow:var(--sh-1);}
.news-top{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-bottom:14px;}
.chip{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:var(--r-pill);
  font-size:12.2px;font-weight:620;
  color:#9fe6f7;background:rgba(52,208,240,.11);
  border:1px solid rgba(52,208,240,.24);
}
.chip-purple{color:#c5b6ff;background:rgba(124,92,255,.13);border-color:rgba(124,92,255,.3);}
.chip-warm{color:#ffd39a;background:rgba(255,176,32,.13);border-color:rgba(255,176,32,.3);}
.news-date{font-size:12.6px;color:var(--t3);}
.news-card h3{font-size:16.7px;font-weight:700;line-height:1.55;color:#fff;margin-bottom:11px;}
.news-card h3 a:hover{color:var(--brand);}
.news-card p{font-size:14.1px;color:var(--t2);line-height:1.78;flex:1;}
.news-more{
  display:inline-flex;align-items:center;gap:8px;margin-top:18px;
  font-size:13.8px;font-weight:620;color:var(--brand);
}
.news-card:hover .news-more{gap:12px;}
.news-empty{
  grid-column:1/-1;
  padding:46px 24px;text-align:center;
  border-radius:var(--r-lg);
  border:1px dashed var(--line-2);
  background:rgba(255,255,255,.028);
  color:var(--t2);font-size:15px;
}
.news-empty i{display:block;font-size:26px;color:var(--t3);margin-bottom:12px;}
/* ============ 服务流程 ============ */
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:var(--gap);position:relative;}
.step{
  position:relative;padding:26px 22px 24px;border-radius:var(--r-lg);
  background:var(--panel);border:1px solid var(--line);
  transition:transform .28s ease,border-color .28s ease;
}
.step:hover{transform:translateY(-6px);border-color:rgba(52,208,240,.42);}
.step-no{
  position:absolute;top:-16px;left:22px;
  width:38px;height:38px;border-radius:13px;
  display:grid;place-items:center;
  font-size:14.5px;font-weight:750;color:#04121c;
  background:linear-gradient(135deg,var(--brand),var(--brand-2));
  box-shadow:0 10px 24px rgba(52,208,240,.3);
}
.step h3{font-size:16.5px;font-weight:720;color:#fff;margin:14px 0 9px;}
.step p{font-size:14.1px;color:var(--t2);line-height:1.78;}
/* ============ 用户声音 ============ */
.voice-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:var(--gap);}
.voice-card{
  padding:26px;border-radius:var(--r-lg);
  background:linear-gradient(160deg,rgba(255,255,255,.075),rgba(255,255,255,.03));
  border:1px solid var(--line);
  display:flex;flex-direction:column;gap:16px;
  transition:transform .28s ease,border-color .28s ease;
}
.voice-card:hover{transform:translateY(-6px);border-color:rgba(124,92,255,.42);}
.voice-stars{display:flex;gap:4px;color:var(--warm);font-size:13px;}
.voice-card p{font-size:14.6px;color:#cfdcef;line-height:1.86;flex:1;}
.voice-user{display:flex;align-items:center;gap:12px;padding-top:16px;border-top:1px solid var(--line);}
.voice-user .avatar{margin:0;width:40px;height:40px;font-size:14.5px;border-color:transparent;}
.voice-user b{display:block;font-size:14.4px;color:#fff;font-weight:650;}
.voice-user span{font-size:12.6px;color:var(--t3);}
/* ============ FAQ ============ */
.faq-wrap{max-width:900px;margin:0 auto;display:flex;flex-direction:column;gap:14px;}
.faq-item{
  border-radius:var(--r-md);
  background:var(--panel);border:1px solid var(--line);
  overflow:hidden;transition:border-color .24s ease,background .24s ease;
}
.faq-item[open]{border-color:rgba(52,208,240,.4);background:rgba(52,208,240,.055);}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;gap:16px;
  padding:20px 24px;
  font-size:16px;font-weight:650;color:#eef4fe;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"\f067";font-family:"Font Awesome 6 Free";font-weight:900;
  margin-left:auto;font-size:13px;color:var(--brand);
  transition:transform .26s ease;
}
.faq-item[open] summary::after{transform:rotate(45deg);}
.faq-body{padding:0 24px 22px;color:var(--t2);font-size:14.6px;line-height:1.88;}
/* ============ CTA ============ */
.cta-band{
  position:relative;overflow:hidden;
  border-radius:var(--r-lg);
  padding:60px 52px;
  border:1px solid var(--line-2);
  background-image:linear-gradient(120deg,rgba(6,10,20,.92),rgba(10,18,36,.86)),url("/assets/images/backpic/back-3.webp");
  background-size:cover;background-position:center;
  display:grid;grid-template-columns:minmax(0,1.3fr) minmax(0,.7fr);
  gap:40px;align-items:center;
}
.cta-band h2{font-size:clamp(24px,3vw,34px);font-weight:800;line-height:1.32;color:#fff;margin-bottom:14px;}
.cta-band p{color:#c3d2e8;font-size:15.6px;line-height:1.88;max-width:620px;}
.cta-actions{display:flex;flex-direction:column;gap:14px;}
.cta-note{font-size:13.2px;color:var(--t3);text-align:center;}
/* ============ 页脚 ============ */
.site-footer{
  margin-top:20px;
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(255,255,255,.028),rgba(6,10,20,.5));
  padding:64px 0 30px;
}
.footer-grid{
  display:grid;grid-template-columns:minmax(0,1.5fr) repeat(3,minmax(0,1fr));
  gap:40px;
  padding-bottom:44px;border-bottom:1px solid var(--line);
}
.footer-brand .brand{margin-bottom:18px;}
.footer-brand p{font-size:14.2px;color:var(--t2);line-height:1.85;max-width:380px;}
.footer-social{display:flex;gap:11px;margin-top:22px;}
.footer-social a{
  width:40px;height:40px;border-radius:12px;
  display:grid;place-items:center;
  background:rgba(255,255,255,.06);border:1px solid var(--line);
  color:var(--t2);font-size:15px;
  transition:background .22s ease,color .22s ease,border-color .22s ease,transform .22s ease;
}
.footer-social a:hover{background:rgba(52,208,240,.14);color:var(--brand);border-color:rgba(52,208,240,.4);transform:translateY(-3px);}
.footer-col h4{font-size:14.6px;font-weight:700;color:#fff;margin-bottom:16px;letter-spacing:.02em;}
.footer-col ul{display:flex;flex-direction:column;gap:11px;}
.footer-col a{font-size:14px;color:var(--t2);}
.footer-col a:hover{color:var(--brand);}
.footer-bottom{
  display:flex;justify-content:space-between;align-items:center;
  gap:20px;flex-wrap:wrap;padding-top:26px;
  font-size:13.4px;color:var(--t3);
}
.footer-bottom .fb-links{display:flex;gap:20px;flex-wrap:wrap;}
.footer-bottom a{color:var(--t3);}
.footer-bottom a:hover{color:var(--brand);}
/* ============ 响应式 ============ */
@media (max-width:1080px){
  :root{--sec:76px;}
  .hero{padding:150px 0 76px;}
  .hero-grid{grid-template-columns:1fr;gap:40px;}
  .hero-lead{max-width:100%;}
  .topic-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .focus-layout{grid-template-columns:1fr;}
  .feature-split{grid-template-columns:1fr;gap:36px;}
  .news-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr));gap:34px 22px;}
  .voice-grid{grid-template-columns:1fr;}
  .cta-band{grid-template-columns:1fr;padding:46px 32px;}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:34px;}
  .metrics{grid-template-columns:repeat(2,minmax(0,1fr));gap:26px;padding:28px;}
  .metric + .metric{border-left:none;}
  .metric:nth-child(even){border-left:1px solid var(--line);}
}
@media (max-width:900px){
  .nav-menu{
    position:fixed;top:76px;left:0;right:0;
    flex-direction:column;align-items:stretch;gap:6px;
    padding:18px 20px 24px;
    background:rgba(6,10,20,.97);
    backdrop-filter:blur(22px);
    border-bottom:1px solid var(--line-2);
    box-shadow:var(--sh-2);
    transform:translateY(-16px);opacity:0;pointer-events:none;
    transition:opacity .26s ease,transform .26s ease;
    max-height:calc(100vh - 76px);overflow-y:auto;
  }
  .nav-menu.is-open{transform:translateY(0);opacity:1;pointer-events:auto;}
  .nav-menu a{padding:13px 16px;border-radius:var(--r-sm);font-size:15.2px;}
  .nav-toggle{display:grid;}
  .nav-search{display:none;}
  .nav-inner{gap:14px;}
}
@media (max-width:768px){
  .container,.container-wide{padding:0 18px;}
  .hero{padding:132px 0 62px;}
  .hero h1{font-size:clamp(25px,7vw,34px);}
  .hero-lead{font-size:15.6px;}
  .hero-stats{grid-template-columns:1fr;gap:12px;}
  .news-grid{grid-template-columns:1fr;}
  .news-head{flex-direction:column;align-items:flex-start;}
  .btn{padding:13px 22px;font-size:14.6px;}
  .brand-sub{display:none;}
  .faq-item summary{padding:17px 18px;font-size:15.2px;}
  .faq-body{padding:0 18px 18px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:12px;}
}
@media (max-width:520px){
  :root{--sec:62px;--gap:16px;}
  .topic-grid{grid-template-columns:1fr;}
  .steps{grid-template-columns:1fr;}
  .hero-actions{flex-direction:column;align-items:stretch;}
  .hero-actions .btn{width:100%;}
  .metrics{grid-template-columns:1fr;padding:22px;}
  .metric:nth-child(even){border-left:none;}
  .cta-band{padding:34px 22px;}
  .brand-name{font-size:15.4px;}
  .nav-inner{height:68px;}
  .nav-menu{top:68px;max-height:calc(100vh - 68px);}
}

/* roulang page: category1 */
:root{
  --bg:#070b16;
  --bg-soft:#0b1122;
  --surface:rgba(255,255,255,.045);
  --surface-2:rgba(255,255,255,.075);
  --border:rgba(255,255,255,.1);
  --border-strong:rgba(255,255,255,.18);
  --text:#eef3ff;
  --muted:#98a6c6;
  --primary:#22e0a1;
  --primary-dark:#0fb37e;
  --accent:#4d8dff;
  --warn:#ffb020;
  --radius-sm:10px;
  --radius:16px;
  --radius-lg:22px;
  --radius-xl:28px;
  --shadow-sm:0 6px 18px rgba(0,0,0,.3);
  --shadow:0 16px 40px rgba(0,0,0,.42);
  --shadow-lg:0 28px 70px rgba(0,0,0,.55);
  --container:1280px;
  --section-py:88px;
  --ease:.28s cubic-bezier(.4,0,.2,1);
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;line-height:1.3;font-weight:700;letter-spacing:-.01em;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}

.container-wide{width:min(var(--container),92%);margin:0 auto;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:13px 26px;border-radius:999px;border:1px solid transparent;
  font-size:15px;font-weight:600;cursor:pointer;white-space:nowrap;
  transition:transform var(--ease),box-shadow var(--ease),background var(--ease),border-color var(--ease),color var(--ease);
}
.btn i{font-size:14px;}
.btn-primary{
  background:linear-gradient(135deg,var(--primary),#19c9ff);
  color:#04121b;
  box-shadow:0 10px 26px rgba(34,224,161,.26);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 34px rgba(34,224,161,.38);}
.btn-ghost{background:rgba(255,255,255,.06);border-color:var(--border-strong);color:var(--text);}
.btn-ghost:hover{background:rgba(255,255,255,.12);transform:translateY(-2px);}
.btn-sm{padding:10px 18px;font-size:14px;}
.btn:focus-visible,a:focus-visible,summary:focus-visible,.nav-toggle:focus-visible{
  outline:2px solid var(--primary);outline-offset:3px;border-radius:12px;
}

/* ---------- 导航 ---------- */
.site-header{position:fixed;top:0;left:0;right:0;z-index:120;}
.nav-shell{
  background:rgba(9,14,28,.42);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid rgba(255,255,255,.07);
  transition:background var(--ease),box-shadow var(--ease);
}
.site-header.is-solid .nav-shell{
  background:rgba(7,11,22,.94);
  box-shadow:0 12px 34px rgba(0,0,0,.5);
}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:22px;height:76px;}
.brand{display:flex;align-items:center;gap:11px;flex-shrink:0;}
.brand-mark{
  width:42px;height:42px;border-radius:13px;flex-shrink:0;
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,var(--primary),var(--accent));
  color:#04121b;font-weight:800;font-size:19px;
  box-shadow:0 8px 20px rgba(34,224,161,.32);
}
.brand-text{display:flex;flex-direction:column;line-height:1.2;}
.brand-name{font-size:16px;font-weight:700;letter-spacing:.01em;}
.brand-sub{font-size:11px;color:var(--muted);letter-spacing:.16em;text-transform:uppercase;}
.nav-menu{display:flex;align-items:center;gap:4px;}
.nav-menu a{
  position:relative;padding:9px 14px;border-radius:999px;
  font-size:14.5px;color:var(--muted);font-weight:500;
  transition:color var(--ease),background var(--ease);
}
.nav-menu a:hover{color:var(--text);background:rgba(255,255,255,.07);}
.nav-menu a.active{color:var(--primary);background:rgba(34,224,161,.12);}
.nav-actions{display:flex;align-items:center;gap:12px;}
.nav-search{
  display:inline-flex;align-items:center;gap:9px;
  padding:9px 16px;border-radius:999px;
  background:rgba(255,255,255,.05);border:1px solid var(--border);
  color:var(--muted);font-size:14px;
  transition:border-color var(--ease),color var(--ease),background var(--ease);
}
.nav-search:hover{color:var(--text);border-color:var(--border-strong);background:rgba(255,255,255,.09);}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:13px;
  background:rgba(255,255,255,.06);border:1px solid var(--border);
  color:var(--text);font-size:17px;cursor:pointer;
}

/* ---------- 页面头部横幅 ---------- */
.page-hero{position:relative;padding:158px 0 96px;overflow:hidden;}
.page-hero .hero-bg{position:absolute;inset:0;z-index:0;}
.page-hero .hero-bg img{width:100%;height:100%;object-fit:cover;opacity:.34;}
.page-hero .hero-bg::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,11,22,.78) 0%,rgba(7,11,22,.9) 55%,var(--bg) 100%);
}
.hero-inner{position:relative;z-index:2;max-width:840px;}
.crumbs{display:flex;align-items:center;gap:9px;font-size:13.5px;color:var(--muted);margin-bottom:22px;}
.crumbs a:hover{color:var(--primary);}
.crumbs i{font-size:10px;opacity:.6;}
.tag{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 15px;border-radius:999px;
  background:rgba(34,224,161,.13);border:1px solid rgba(34,224,161,.32);
  color:var(--primary);font-size:13px;font-weight:600;letter-spacing:.03em;
}
.tag .dot{width:7px;height:7px;border-radius:50%;background:var(--primary);box-shadow:0 0 0 4px rgba(34,224,161,.18);animation:pulse 2s infinite;}
@keyframes pulse{0%,100%{opacity:1;}50%{opacity:.35;}}
.hero-title{font-size:clamp(30px,4.4vw,50px);line-height:1.22;margin:20px 0 20px;}
.hero-title em{font-style:normal;color:var(--primary);}
.hero-lead{font-size:16.5px;color:var(--muted);max-width:720px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px;}
.hero-stats{display:flex;flex-wrap:wrap;gap:36px;margin-top:44px;padding-top:32px;border-top:1px solid var(--border);}
.hero-stats .hs-num{font-size:26px;font-weight:800;color:var(--text);letter-spacing:-.02em;}
.hero-stats .hs-num span{font-size:14px;color:var(--primary);margin-left:3px;}
.hero-stats .hs-label{font-size:13px;color:var(--muted);}

/* ---------- 通用板块 ---------- */
.section{padding:var(--section-py) 0;}
.section.alt{background:linear-gradient(180deg,var(--bg) 0%,var(--bg-soft) 50%,var(--bg) 100%);}
.section-head{max-width:720px;margin-bottom:44px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;font-weight:700;letter-spacing:.18em;text-transform:uppercase;
  color:var(--primary);margin-bottom:14px;
}
.eyebrow::before{content:"";width:26px;height:2px;border-radius:2px;background:var(--primary);}
.section-head.center .eyebrow::before{display:none;}
.section-title{font-size:clamp(23px,2.8vw,34px);margin-bottom:14px;}
.section-desc{color:var(--muted);font-size:15.5px;}

/* ---------- 卡片网格 ---------- */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.card{
  background:linear-gradient(180deg,rgba(255,255,255,.06),rgba(255,255,255,.02));
  border:1px solid var(--border);border-radius:var(--radius-lg);
  overflow:hidden;
  transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease);
}
.card:hover{transform:translateY(-5px);border-color:rgba(34,224,161,.4);box-shadow:var(--shadow);}
.card-media{position:relative;aspect-ratio:16/10;overflow:hidden;}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease);}
.card:hover .card-media img{transform:scale(1.06);}
.card-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 40%,rgba(7,11,22,.85));}
.card-badge{
  position:absolute;top:14px;left:14px;z-index:2;
  padding:5px 12px;border-radius:999px;font-size:12px;font-weight:600;
  background:rgba(7,11,22,.72);border:1px solid var(--border-strong);color:var(--text);
  backdrop-filter:blur(8px);
}
.card-body{padding:22px 22px 24px;}
.card-body h3{font-size:18px;margin-bottom:10px;}
.card-body p{color:var(--muted);font-size:14.5px;line-height:1.8;}
.card-meta{display:flex;align-items:center;gap:14px;margin-top:16px;font-size:13px;color:var(--muted);}
.card-meta i{color:var(--primary);margin-right:5px;}

/* ---------- 焦点排行 ---------- */
.rank-wrap{
  border:1px solid var(--border);border-radius:var(--radius-xl);
  background:rgba(255,255,255,.025);padding:14px;
}
.rank-item{
  display:grid;grid-template-columns:56px 1fr auto;align-items:center;gap:18px;
  padding:18px 20px;border-radius:var(--radius);
  transition:background var(--ease),transform var(--ease),border-color var(--ease);
  border:1px solid transparent;
}
.rank-item + .rank-item{margin-top:8px;}
.rank-item:hover{background:rgba(34,224,161,.07);border-color:rgba(34,224,161,.3);transform:translateX(5px);}
.rank-no{
  width:46px;height:46px;border-radius:14px;
  display:flex;align-items:center;justify-content:center;
  font-weight:800;font-size:17px;
  background:rgba(255,255,255,.06);border:1px solid var(--border);color:var(--muted);
}
.rank-item:nth-child(1) .rank-no{background:linear-gradient(135deg,var(--primary),#19c9ff);color:#04121b;border-color:transparent;}
.rank-item:nth-child(2) .rank-no{background:rgba(77,141,255,.2);color:#9dc0ff;border-color:rgba(77,141,255,.4);}
.rank-item:nth-child(3) .rank-no{background:rgba(255,176,32,.18);color:var(--warn);border-color:rgba(255,176,32,.35);}
.rank-title{font-size:16px;font-weight:600;}
.rank-sub{font-size:13.5px;color:var(--muted);margin-top:4px;}
.rank-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:9px;}
.chip{
  padding:3px 11px;border-radius:999px;font-size:12px;
  background:rgba(255,255,255,.06);border:1px solid var(--border);color:var(--muted);
}
.chip.hot{background:rgba(34,224,161,.14);border-color:rgba(34,224,161,.32);color:var(--primary);}
.rank-right{display:flex;align-items:center;gap:18px;}
.rank-time{text-align:right;font-size:13px;color:var(--muted);}
.rank-time strong{display:block;font-size:17px;color:var(--text);letter-spacing:-.01em;}

/* ---------- 流程步骤 ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;counter-reset:step;}
.step{
  position:relative;padding:30px 24px 28px;border-radius:var(--radius-lg);
  background:linear-gradient(180deg,rgba(255,255,255,.06),rgba(255,255,255,.015));
  border:1px solid var(--border);
  transition:transform var(--ease),border-color var(--ease);
}
.step:hover{transform:translateY(-5px);border-color:rgba(34,224,161,.38);}
.step::before{
  counter-increment:step;content:"0" counter(step);
  display:block;font-size:13px;font-weight:800;letter-spacing:.16em;
  color:var(--primary);margin-bottom:16px;
}
.step h3{font-size:17px;margin-bottom:10px;}
.step p{color:var(--muted);font-size:14.5px;}

/* ---------- 数据条 ---------- */
.stat-strip{
  display:grid;grid-template-columns:repeat(4,1fr);gap:20px;
  padding:38px 34px;border-radius:var(--radius-xl);
  background:linear-gradient(135deg,rgba(34,224,161,.1),rgba(77,141,255,.08));
  border:1px solid rgba(34,224,161,.22);
}
.stat .st-num{font-size:32px;font-weight:800;letter-spacing:-.03em;}
.stat .st-num span{font-size:16px;color:var(--primary);margin-left:3px;}
.stat .st-label{font-size:14px;color:var(--muted);margin-top:6px;}

/* ---------- 项目入口 ---------- */
.scene-card{
  display:flex;gap:18px;align-items:flex-start;
  padding:24px;border-radius:var(--radius-lg);
  background:rgba(255,255,255,.035);border:1px solid var(--border);
  transition:transform var(--ease),border-color var(--ease),background var(--ease);
}
.scene-card:hover{transform:translateY(-4px);border-color:rgba(77,141,255,.4);background:rgba(255,255,255,.06);}
.scene-thumb{width:96px;height:96px;border-radius:var(--radius);overflow:hidden;flex-shrink:0;}
.scene-thumb img{width:100%;height:100%;object-fit:cover;}
.scene-card h3{font-size:17px;margin-bottom:8px;}
.scene-card p{color:var(--muted);font-size:14px;line-height:1.78;}

/* ---------- FAQ ---------- */
.faq-list{max-width:900px;margin:0 auto;}
.faq-item{
  border:1px solid var(--border);border-radius:var(--radius);
  background:rgba(255,255,255,.03);margin-bottom:12px;overflow:hidden;
  transition:border-color var(--ease),background var(--ease);
}
.faq-item:hover{border-color:var(--border-strong);}
.faq-item[open]{border-color:rgba(34,224,161,.36);background:rgba(34,224,161,.045);}
.faq-item summary{
  cursor:pointer;list-style:none;padding:19px 24px;
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  font-size:16px;font-weight:600;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"\f078";font-family:"Font Awesome 6 Free";font-weight:900;
  font-size:13px;color:var(--primary);transition:transform var(--ease);flex-shrink:0;
}
.faq-item[open] summary::after{transform:rotate(180deg);}
.faq-body{padding:0 24px 22px;color:var(--muted);font-size:14.8px;line-height:1.9;}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;
  padding:58px 54px;border-radius:var(--radius-xl);
  background:linear-gradient(135deg,rgba(34,224,161,.18),rgba(77,141,255,.14));
  border:1px solid rgba(34,224,161,.3);
}
.cta-band::before{
  content:"";position:absolute;width:380px;height:380px;border-radius:50%;
  right:-120px;top:-160px;background:radial-gradient(circle,rgba(34,224,161,.3),transparent 68%);
}
.cta-inner{position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;gap:36px;flex-wrap:wrap;}
.cta-inner h2{font-size:clamp(22px,2.6vw,30px);margin-bottom:12px;}
.cta-inner p{color:#c9d6f0;font-size:15.5px;max-width:620px;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:20px;padding:70px 0 30px;
  background:var(--bg-soft);
  border-top:1px solid var(--border);
}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1fr;gap:44px;}
.footer-brand p{color:var(--muted);font-size:14.5px;margin:20px 0 22px;max-width:420px;}
.footer-social{display:flex;gap:11px;}
.footer-social a{
  width:40px;height:40px;border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  background:rgba(255,255,255,.05);border:1px solid var(--border);color:var(--muted);
  transition:all var(--ease);
}
.footer-social a:hover{color:var(--primary);border-color:rgba(34,224,161,.4);background:rgba(34,224,161,.1);transform:translateY(-3px);}
.footer-col h4{font-size:15px;margin-bottom:18px;}
.footer-col ul li{margin-bottom:11px;}
.footer-col ul a{color:var(--muted);font-size:14.3px;transition:color var(--ease),padding-left var(--ease);}
.footer-col ul a:hover{color:var(--primary);padding-left:4px;}
.footer-bottom{
  margin-top:52px;padding-top:24px;border-top:1px solid var(--border);
  display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;
  font-size:13.5px;color:var(--muted);
}
.fb-links{display:flex;gap:22px;flex-wrap:wrap;}
.fb-links a:hover{color:var(--primary);}

/* ---------- 响应式 ---------- */
@media (max-width:1080px){
  :root{--section-py:70px;}
  .nav-search span{display:none;}
  .nav-search{padding:10px 13px;}
  .grid-4{grid-template-columns:repeat(2,1fr);}
  .steps{grid-template-columns:repeat(2,1fr);}
  .stat-strip{grid-template-columns:repeat(2,1fr);gap:26px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px;}
}
@media (max-width:1024px){
  .nav-toggle{display:flex;align-items:center;justify-content:center;}
  .nav-menu{
    position:fixed;left:0;right:0;top:76px;
    flex-direction:column;align-items:stretch;gap:2px;
    padding:16px 5% 24px;
    background:rgba(7,11,22,.97);
    backdrop-filter:blur(18px);
    border-bottom:1px solid var(--border);
    opacity:0;pointer-events:none;transform:translateY(-14px);
    transition:opacity var(--ease),transform var(--ease);
  }
  .nav-menu.open{opacity:1;pointer-events:auto;transform:translateY(0);}
  .nav-menu a{padding:13px 4px;border-radius:10px;font-size:15.5px;}
  .grid-3{grid-template-columns:repeat(2,1fr);}
}
@media (max-width:768px){
  :root{--section-py:58px;}
  .page-hero{padding:132px 0 68px;}
  .hero-stats{gap:26px;margin-top:34px;padding-top:26px;}
  .grid-3,.grid-4,.steps,.stat-strip{grid-template-columns:1fr;}
  .rank-item{grid-template-columns:46px 1fr;gap:14px;padding:16px 14px;}
  .rank-right{grid-column:2;justify-content:space-between;width:100%;margin-top:6px;}
  .rank-time{text-align:left;}
  .scene-card{flex-direction:column;}
  .scene-thumb{width:100%;height:150px;}
  .cta-band{padding:38px 26px;}
  .cta-inner{flex-direction:column;align-items:flex-start;}
  .footer-grid{grid-template-columns:1fr;gap:30px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:520px){
  .brand-sub{display:none;}
  .brand-name{font-size:15px;}
  .nav-actions{gap:8px;}
  .nav-actions .btn-sm{display:none;}
  .hero-actions .btn{width:100%;}
  .hero-stats .hs-num{font-size:22px;}
  .stat-strip{padding:26px 20px;}
  .rank-wrap{padding:8px;}
  .rank-item{border-radius:14px;}
}

/* roulang page: article */
:root{
  --bg:#070b14;
  --bg-soft:#0c1322;
  --bg-panel:#111a2c;
  --glass:rgba(255,255,255,.045);
  --glass-strong:rgba(255,255,255,.08);
  --line:rgba(255,255,255,.10);
  --line-soft:rgba(255,255,255,.06);
  --text:#e9eefc;
  --text-2:#b9c4dd;
  --muted:#8895b3;
  --brand:#16d3a0;
  --brand-2:#3f7bff;
  --brand-soft:rgba(22,211,160,.14);
  --warn:#ffb547;
  --radius-xs:10px;
  --radius-sm:14px;
  --radius:20px;
  --radius-lg:28px;
  --shadow-sm:0 6px 18px rgba(0,0,0,.28);
  --shadow:0 18px 44px rgba(0,0,0,.42);
  --shadow-lg:0 30px 70px rgba(0,0,0,.5);
  --ease:cubic-bezier(.22,.61,.36,1);
  --maxw:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  background-image:radial-gradient(900px 480px at 12% -6%,rgba(22,211,160,.14),transparent 60%),radial-gradient(800px 420px at 92% 4%,rgba(63,123,255,.14),transparent 62%);
  background-attachment:fixed;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none;transition:color .25s var(--ease)}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;line-height:1.3;font-weight:700;letter-spacing:.2px}
p{margin:0 0 1em}
p:last-child{margin-bottom:0}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:6px}
::selection{background:rgba(22,211,160,.32);color:#fff}
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 22px}
.container-wide{width:100%;max-width:1360px;margin:0 auto;padding:0 22px}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:13px 26px;border-radius:999px;font-size:15px;font-weight:600;
  border:1px solid transparent;cursor:pointer;
  transition:transform .25s var(--ease),box-shadow .25s var(--ease),background .25s var(--ease),border-color .25s var(--ease),color .25s var(--ease);
  white-space:nowrap;
}
.btn i{font-size:14px}
.btn-primary{
  background:linear-gradient(120deg,var(--brand) 0%,#2bb9ff 100%);
  color:#04160f;box-shadow:0 14px 30px rgba(22,211,160,.26);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 20px 40px rgba(22,211,160,.34)}
.btn-ghost{
  background:var(--glass);color:var(--text);border-color:var(--line);
  backdrop-filter:blur(10px);
}
.btn-ghost:hover{background:var(--glass-strong);border-color:rgba(22,211,160,.45);transform:translateY(-2px)}
.btn-sm{padding:10px 18px;font-size:14px}
.btn-block{width:100%}

/* 标签 */
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 13px;border-radius:999px;font-size:13px;font-weight:600;
  background:var(--brand-soft);color:var(--brand);border:1px solid rgba(22,211,160,.28);
}
.tag-blue{background:rgba(63,123,255,.14);color:#8fb2ff;border-color:rgba(63,123,255,.3)}
.tag-warn{background:rgba(255,181,71,.13);color:var(--warn);border-color:rgba(255,181,71,.28)}

/* 导航 */
.site-header{position:fixed;inset:0 0 auto 0;z-index:900;transition:background .3s var(--ease),box-shadow .3s var(--ease)}
.nav-shell{
  background:rgba(8,13,24,.52);
  backdrop-filter:blur(18px) saturate(150%);
  -webkit-backdrop-filter:blur(18px) saturate(150%);
  border-bottom:1px solid var(--line-soft);
  transition:background .3s var(--ease),box-shadow .3s var(--ease);
}
.site-header.scrolled .nav-shell{background:rgba(7,11,20,.94);box-shadow:0 12px 34px rgba(0,0,0,.45)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:76px}
.brand{display:inline-flex;align-items:center;gap:12px;flex-shrink:0}
.brand-mark{
  width:42px;height:42px;border-radius:13px;display:grid;place-items:center;
  font-size:19px;font-weight:800;color:#04160f;
  background:linear-gradient(130deg,var(--brand) 0%,#2bb9ff 100%);
  box-shadow:0 10px 24px rgba(22,211,160,.3);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-name{font-size:17px;font-weight:700;letter-spacing:.4px}
.brand-sub{font-size:11px;letter-spacing:2.4px;text-transform:uppercase;color:var(--muted)}
.nav-menu{display:flex;align-items:center;gap:6px}
.nav-menu a{
  position:relative;padding:9px 15px;border-radius:11px;font-size:15px;color:var(--text-2);font-weight:500;
  transition:color .25s var(--ease),background .25s var(--ease);
}
.nav-menu a:hover{color:#fff;background:var(--glass)}
.nav-menu a.active{color:#fff;background:var(--glass-strong)}
.nav-menu a.active::after{
  content:"";position:absolute;left:50%;bottom:2px;transform:translateX(-50%);
  width:20px;height:2px;border-radius:2px;background:var(--brand);
}
.nav-actions{display:flex;align-items:center;gap:12px}
.nav-search{
  display:inline-flex;align-items:center;gap:9px;padding:9px 16px;border-radius:999px;
  background:var(--glass);border:1px solid var(--line);color:var(--muted);font-size:14px;
  transition:border-color .25s var(--ease),color .25s var(--ease),background .25s var(--ease);
}
.nav-search:hover{color:var(--text);border-color:rgba(22,211,160,.4);background:var(--glass-strong)}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;background:var(--glass);
  border:1px solid var(--line);color:var(--text);font-size:17px;place-items:center;
}
.nav-toggle:hover{background:var(--glass-strong)}

/* 文章头部 */
.article-hero{
  position:relative;padding:158px 0 66px;overflow:hidden;
  background:linear-gradient(180deg,rgba(7,11,20,.72) 0%,rgba(7,11,20,.9) 62%,var(--bg) 100%),
             url(/assets/images/backpic/back-1.webp) center/cover no-repeat;
}
.article-hero::after{
  content:"";position:absolute;inset:auto 0 0 0;height:140px;
  background:linear-gradient(180deg,transparent,var(--bg));
  pointer-events:none;
}
.article-hero .container-wide{position:relative;z-index:2}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:9px;font-size:13.5px;color:var(--muted);margin-bottom:20px}
.crumbs a:hover{color:var(--brand)}
.crumbs i{font-size:10px;opacity:.65}
.hero-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-bottom:20px}
.article-title{
  font-size:clamp(27px,4vw,46px);font-weight:800;letter-spacing:.4px;
  max-width:920px;margin-bottom:20px;
  background:linear-gradient(180deg,#ffffff 30%,#b9c9e8 100%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.article-lead{max-width:820px;color:var(--text-2);font-size:16.5px}
.article-info{display:flex;flex-wrap:wrap;gap:22px;margin-top:26px;padding-top:22px;border-top:1px solid var(--line-soft);font-size:14px;color:var(--muted)}
.article-info span{display:inline-flex;align-items:center;gap:8px}
.article-info i{color:var(--brand)}

/* 通用板块 */
.section{padding:64px 0}
.section-tight{padding:46px 0}
.section-head{margin-bottom:30px;max-width:760px}
.section-head h2{font-size:clamp(22px,2.6vw,31px);margin-bottom:10px}
.section-head p{color:var(--muted);font-size:15.5px;margin:0}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;
  letter-spacing:1.2px;color:var(--brand);text-transform:uppercase;margin-bottom:12px;
}
.eyebrow::before{content:"";width:22px;height:2px;border-radius:2px;background:var(--brand)}

/* 速览卡 */
.fact-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.fact-card{
  padding:26px 24px;border-radius:var(--radius);border:1px solid var(--line);
  background:linear-gradient(160deg,var(--glass-strong),rgba(255,255,255,.015));
  backdrop-filter:blur(12px);box-shadow:var(--shadow-sm);
  transition:transform .3s var(--ease),border-color .3s var(--ease),box-shadow .3s var(--ease);
}
.fact-card:hover{transform:translateY(-4px);border-color:rgba(22,211,160,.4);box-shadow:var(--shadow)}
.fact-card i{font-size:20px;color:var(--brand);margin-bottom:14px;display:block}
.fact-card strong{display:block;font-size:17px;margin-bottom:8px}
.fact-card p{color:var(--muted);font-size:14.5px;margin:0}

/* 正文 */
.layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:34px;align-items:start}
.article-shell{
  padding:38px 40px;border-radius:var(--radius-lg);border:1px solid var(--line);
  background:linear-gradient(175deg,rgba(255,255,255,.055),rgba(255,255,255,.012));
  box-shadow:var(--shadow);
}
.article-body{font-size:16.5px;color:var(--text-2)}
.article-body h2{
  font-size:23px;color:#fff;margin:38px 0 14px;padding-left:15px;position:relative;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:4px;
  background:linear-gradient(180deg,var(--brand),var(--brand-2));
}
.article-body h3{font-size:18.5px;color:#fff;margin:26px 0 10px}
.article-body p{margin:0 0 16px}
.article-body a{color:var(--brand);border-bottom:1px dashed rgba(22,211,160,.45)}
.article-body a:hover{color:#7ff0d0}
.article-body ul,.article-body ol{margin:0 0 18px;padding-left:4px}
.article-body li{position:relative;padding-left:22px;margin-bottom:10px}
.article-body li::before{
  content:"";position:absolute;left:2px;top:11px;width:7px;height:7px;border-radius:50%;
  background:var(--brand);box-shadow:0 0 0 4px rgba(22,211,160,.14);
}
.article-body img{border-radius:var(--radius-sm);margin:20px 0;border:1px solid var(--line)}
.article-body blockquote{
  margin:22px 0;padding:18px 22px;border-radius:var(--radius-sm);
  background:rgba(63,123,255,.09);border-left:3px solid var(--brand-2);color:var(--text);
}
.article-body table{width:100%;border-collapse:collapse;margin:20px 0;font-size:15px}
.article-body th,.article-body td{border:1px solid var(--line);padding:11px 14px;text-align:left}
.article-body th{background:var(--glass-strong);color:#fff}
.article-body strong{color:#fff}
.article-body code{background:rgba(255,255,255,.08);padding:2px 7px;border-radius:6px;font-size:14px}

/* 侧栏 */
.aside-card{
  padding:24px;border-radius:var(--radius);border:1px solid var(--line);
  background:linear-gradient(170deg,rgba(255,255,255,.06),rgba(255,255,255,.012));
  box-shadow:var(--shadow-sm);margin-bottom:20px;position:sticky;top:100px;
}
.aside-card h3{font-size:16px;margin-bottom:16px;display:flex;align-items:center;gap:9px}
.aside-card h3 i{color:var(--brand)}
.aside-list li{display:flex;gap:12px;padding:12px 0;border-bottom:1px dashed var(--line-soft)}
.aside-list li:last-child{border-bottom:0;padding-bottom:0}
.aside-list .num{
  flex:0 0 26px;height:26px;border-radius:9px;display:grid;place-items:center;
  font-size:12.5px;font-weight:700;color:#04160f;background:linear-gradient(130deg,var(--brand),#2bb9ff);
}
.aside-list a{font-size:14.5px;color:var(--text-2);line-height:1.55}
.aside-list a:hover{color:var(--brand)}
.aside-cta{padding:24px;border-radius:var(--radius);border:1px solid rgba(22,211,160,.3);background:linear-gradient(150deg,rgba(22,211,160,.16),rgba(63,123,255,.14))}
.aside-cta h3{font-size:17px;margin-bottom:8px}
.aside-cta p{color:var(--text-2);font-size:14.5px;margin-bottom:16px}

/* 空状态 */
.empty-panel{
  text-align:center;padding:70px 30px;border-radius:var(--radius-lg);
  border:1px dashed var(--line);background:var(--glass);
}
.empty-panel i{font-size:34px;color:var(--muted);margin-bottom:18px;display:block}
.empty-panel h2{font-size:23px;margin-bottom:12px}
.empty-panel p{color:var(--muted);max-width:520px;margin:0 auto 24px}

/* 相关阅读 */
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.card{
  display:flex;flex-direction:column;border-radius:var(--radius);overflow:hidden;
  border:1px solid var(--line);background:linear-gradient(180deg,rgba(255,255,255,.055),rgba(255,255,255,.012));
  box-shadow:var(--shadow-sm);
  transition:transform .32s var(--ease),border-color .32s var(--ease),box-shadow .32s var(--ease);
}
.card:hover{transform:translateY(-6px);border-color:rgba(22,211,160,.42);box-shadow:var(--shadow)}
.card-media{position:relative;aspect-ratio:16/10;overflow:hidden}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .6s var(--ease)}
.card:hover .card-media img{transform:scale(1.06)}
.card-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 40%,rgba(7,11,20,.72))}
.card-media .tag{position:absolute;left:14px;top:14px;z-index:2}
.card-body{padding:20px 20px 22px;display:flex;flex-direction:column;gap:9px;flex:1}
.card-body h3{font-size:17px;line-height:1.5}
.card-body p{color:var(--muted);font-size:14.5px;margin:0}
.card-foot{margin-top:auto;padding-top:12px;font-size:13px;color:var(--muted);display:flex;align-items:center;gap:8px}
.card-foot i{color:var(--brand)}
a.card{color:inherit}

/* FAQ */
.faq-wrap{display:grid;gap:14px;max-width:900px;margin:0 auto}
.faq-item{
  border-radius:var(--radius-sm);border:1px solid var(--line);background:var(--glass);
  overflow:hidden;transition:border-color .3s var(--ease),background .3s var(--ease);
}
.faq-item[open]{border-color:rgba(22,211,160,.42);background:rgba(22,211,160,.06)}
.faq-item summary{
  cursor:pointer;padding:19px 24px;font-size:16px;font-weight:600;color:#fff;
  display:flex;align-items:center;justify-content:space-between;gap:16px;list-style:none;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"\f067";font-family:"Font Awesome 6 Free";font-weight:900;font-size:12px;
  color:var(--brand);transition:transform .3s var(--ease);
}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-item .faq-body{padding:0 24px 22px;color:var(--muted);font-size:15px}

/* CTA */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--radius-lg);
  padding:54px 48px;border:1px solid rgba(22,211,160,.28);
  background:linear-gradient(120deg,rgba(22,211,160,.16) 0%,rgba(63,123,255,.16) 52%,rgba(7,11,20,.6) 100%);
  box-shadow:var(--shadow);
}
.cta-band::before{
  content:"";position:absolute;right:-80px;top:-90px;width:300px;height:300px;border-radius:50%;
  background:radial-gradient(circle,rgba(22,211,160,.34),transparent 65%);
}
.cta-band .cta-inner{position:relative;z-index:2;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:26px}
.cta-band h2{font-size:clamp(22px,2.7vw,30px);margin-bottom:10px}
.cta-band p{color:var(--text-2);max-width:620px;margin:0}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}

/* 页脚 */
.site-footer{margin-top:20px;padding:60px 0 26px;border-top:1px solid var(--line-soft);background:linear-gradient(180deg,rgba(255,255,255,.02),transparent)}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:34px}
.footer-brand p{color:var(--muted);font-size:14.5px;margin:18px 0 20px;max-width:360px}
.footer-social{display:flex;gap:11px}
.footer-social a{
  width:40px;height:40px;border-radius:12px;display:grid;place-items:center;
  background:var(--glass);border:1px solid var(--line);color:var(--text-2);font-size:15px;
  transition:all .28s var(--ease);
}
.footer-social a:hover{color:#04160f;background:linear-gradient(130deg,var(--brand),#2bb9ff);border-color:transparent;transform:translateY(-3px)}
.footer-col h4{font-size:15.5px;margin-bottom:16px}
.footer-col li{margin-bottom:11px}
.footer-col a{color:var(--muted);font-size:14.5px}
.footer-col a:hover{color:var(--brand)}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid var(--line-soft);
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px;
  font-size:13.5px;color:var(--muted);
}
.fb-links{display:flex;flex-wrap:wrap;gap:18px}
.fb-links a:hover{color:var(--brand)}

/* 响应式 */
@media (max-width:1100px){
  .layout{grid-template-columns:1fr}
  .aside-card{position:static}
  .nav-search span{display:none}
  .nav-search{padding:9px 12px}
}
@media (max-width:980px){
  .nav-toggle{display:grid}
  .nav-menu{
    position:absolute;left:16px;right:16px;top:calc(100% + 10px);
    flex-direction:column;align-items:stretch;gap:4px;padding:14px;
    background:rgba(10,16,28,.97);border:1px solid var(--line);border-radius:var(--radius);
    box-shadow:var(--shadow);backdrop-filter:blur(18px);
    opacity:0;visibility:hidden;transform:translateY(-10px);
    transition:opacity .28s var(--ease),transform .28s var(--ease),visibility .28s;
  }
  .nav-menu.open{opacity:1;visibility:visible;transform:translateY(0)}
  .nav-menu a{padding:12px 14px}
  .nav-menu a.active::after{display:none}
  .nav-actions .btn-sm{display:none}
  .fact-grid{grid-template-columns:1fr}
  .card-grid{grid-template-columns:1fr 1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:768px){
  .article-hero{padding:130px 0 50px}
  .article-shell{padding:26px 22px;border-radius:var(--radius)}
  .section{padding:48px 0}
  .cta-band{padding:38px 24px}
  .brand-sub{display:none}
  .footer-grid{grid-template-columns:1fr;gap:26px}
}
@media (max-width:560px){
  .container,.container-wide{padding:0 16px}
  .card-grid{grid-template-columns:1fr}
  .article-body{font-size:16px}
  .article-info{gap:14px;font-size:13px}
  .cta-actions .btn{width:100%}
  .footer-bottom{justify-content:flex-start}
}

/* roulang page: category2 */
:root{
  --bg:#070b16;
  --bg-soft:#0c1322;
  --surface:rgba(255,255,255,.045);
  --surface-2:rgba(255,255,255,.08);
  --line:rgba(255,255,255,.10);
  --line-strong:rgba(34,211,238,.38);
  --text:#eef3fb;
  --muted:#98a6c0;
  --brand:#22d3ee;
  --brand-2:#3b82f6;
  --brand-3:#7dd3fc;
  --accent:#f59e0b;
  --radius-sm:12px;
  --radius:18px;
  --radius-lg:26px;
  --radius-xl:34px;
  --shadow:0 26px 60px rgba(0,0,0,.45);
  --shadow-soft:0 16px 40px rgba(0,0,0,.28);
  --container:1200px;
  --container-wide:1360px;
  --ease:.28s cubic-bezier(.4,0,.2,1);
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:
    radial-gradient(1100px 620px at 12% -8%, rgba(34,211,238,.16), transparent 62%),
    radial-gradient(900px 560px at 92% 6%, rgba(59,130,246,.14), transparent 60%),
    var(--bg);
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button,input{font:inherit;color:inherit}
button{cursor:pointer;background:none;border:0}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.25;letter-spacing:-.01em}
p{margin:0}
::selection{background:rgba(34,211,238,.32);color:#fff}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.container-wide{width:100%;max-width:var(--container-wide);margin:0 auto;padding:0 28px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  border-radius:999px;font-weight:600;border:1px solid transparent;
  white-space:nowrap;
  transition:transform var(--ease),box-shadow var(--ease),background var(--ease),color var(--ease),border-color var(--ease);
}
.btn i{font-size:.95em}
.btn-sm{padding:9px 18px;font-size:14px}
.btn-md{padding:13px 26px;font-size:15px}
.btn-lg{padding:16px 34px;font-size:16.5px}
.btn-primary{
  background:linear-gradient(135deg,var(--brand),var(--brand-2));
  color:#04121d;
  box-shadow:0 14px 34px rgba(34,211,238,.28);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 20px 46px rgba(34,211,238,.4)}
.btn-ghost{
  background:rgba(255,255,255,.05);
  border-color:var(--line);
  color:var(--text);
}
.btn-ghost:hover{background:rgba(255,255,255,.11);border-color:rgba(255,255,255,.24);transform:translateY(-2px)}
.btn:focus-visible,a:focus-visible,summary:focus-visible,button:focus-visible{
  outline:2px solid var(--brand);outline-offset:3px;border-radius:999px;
}

/* ---------- 导航 ---------- */
.site-header{position:fixed;top:0;left:0;right:0;z-index:80;transition:var(--ease)}
.nav-shell{
  background:linear-gradient(180deg,rgba(9,14,26,.72),rgba(9,14,26,.32));
  -webkit-backdrop-filter:blur(18px) saturate(140%);
  backdrop-filter:blur(18px) saturate(140%);
  border-bottom:1px solid rgba(255,255,255,.07);
  transition:background var(--ease),border-color var(--ease),box-shadow var(--ease);
}
.site-header.is-scrolled .nav-shell{
  background:rgba(7,11,22,.92);
  border-bottom-color:rgba(255,255,255,.11);
  box-shadow:0 14px 40px rgba(0,0,0,.42);
}
.nav-inner{display:flex;align-items:center;gap:22px;height:78px}
.brand{display:inline-flex;align-items:center;gap:12px;flex-shrink:0}
.brand-mark{
  width:42px;height:42px;border-radius:13px;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--brand),var(--brand-2));
  color:#04121d;font-weight:800;font-size:19px;
  box-shadow:0 10px 26px rgba(34,211,238,.34);
  transition:transform var(--ease);
}
.brand:hover .brand-mark{transform:rotate(-6deg) scale(1.04)}
.brand-text{display:flex;flex-direction:column;line-height:1.16}
.brand-name{font-size:16px;font-weight:700;letter-spacing:.01em}
.brand-sub{font-size:10.5px;letter-spacing:.2em;text-transform:uppercase;color:var(--muted)}

.nav-menu{display:flex;align-items:center;gap:5px;margin-left:auto}
.nav-menu a{
  position:relative;padding:9px 15px;border-radius:999px;
  font-size:14.5px;color:var(--muted);transition:var(--ease);
}
.nav-menu a:hover{color:var(--text);background:rgba(255,255,255,.07)}
.nav-menu a.active{
  color:#04121d;font-weight:600;
  background:linear-gradient(135deg,var(--brand),#60a5fa);
  box-shadow:0 8px 22px rgba(34,211,238,.32);
}
.nav-actions{display:flex;align-items:center;gap:12px;flex-shrink:0}
.nav-search{
  display:inline-flex;align-items:center;gap:9px;
  padding:9px 17px;border-radius:999px;font-size:14px;color:var(--muted);
  background:rgba(255,255,255,.035);border:1px solid var(--line);
  transition:var(--ease);
}
.nav-search:hover{color:var(--text);border-color:var(--line-strong);background:rgba(34,211,238,.09)}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:13px;
  background:rgba(255,255,255,.06);border:1px solid var(--line);
  color:var(--text);place-items:center;font-size:16px;transition:var(--ease);
}
.nav-toggle:hover{background:rgba(255,255,255,.12)}

/* ---------- Hero ---------- */
.hero{position:relative;padding:168px 0 92px;overflow:hidden;isolation:isolate}
.hero-bg{
  position:absolute;inset:0;z-index:-2;
  background-image:url("/assets/images/backpic/back-2.png");
  background-size:cover;background-position:center 26%;
  opacity:.42;
}
.hero::before{
  content:"";position:absolute;inset:0;z-index:-1;
  background:
    radial-gradient(760px 480px at 16% 22%, rgba(34,211,238,.3), transparent 62%),
    linear-gradient(180deg, rgba(7,11,22,.82) 0%, rgba(7,11,22,.72) 46%, var(--bg) 96%);
}
.hero-inner{position:relative;max-width:900px}
.crumb{display:flex;align-items:center;gap:9px;font-size:13px;color:var(--muted);margin-bottom:22px}
.crumb a{transition:var(--ease)}
.crumb a:hover{color:var(--brand)}
.crumb i{font-size:10px;opacity:.6}
.chip{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 16px;border-radius:999px;font-size:13px;font-weight:600;
  color:var(--brand-3);background:rgba(34,211,238,.12);
  border:1px solid rgba(34,211,238,.34);
}
.hero h1{
  font-size:clamp(30px,4.5vw,54px);
  line-height:1.16;margin:20px 0 20px;letter-spacing:-.02em;
}
.hero h1 .grad{
  background:linear-gradient(120deg,var(--brand),#93c5fd 70%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-lead{font-size:17px;color:var(--muted);max-width:740px}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:30px}
.tag{
  display:inline-flex;align-items:center;gap:7px;
  padding:6px 14px;border-radius:999px;font-size:12.8px;color:var(--muted);
  background:rgba(255,255,255,.05);border:1px solid var(--line);
  transition:var(--ease);
}
.tag:hover{color:var(--text);border-color:var(--line-strong);background:rgba(34,211,238,.09)}

/* ---------- 统计条 ---------- */
.stat-strip{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));
  gap:18px;margin-top:60px;
}
.stat-card{
  padding:24px 22px;border-radius:var(--radius);
  background:linear-gradient(180deg,rgba(255,255,255,.07),rgba(255,255,255,.025));
  border:1px solid var(--line);
  -webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
  transition:var(--ease);
}
.stat-card:hover{transform:translateY(-5px);border-color:var(--line-strong);box-shadow:var(--shadow-soft)}
.stat-num{font-size:29px;font-weight:800;color:var(--brand-3);letter-spacing:-.02em;line-height:1.2}
.stat-num small{font-size:15px;font-weight:600;color:var(--text);margin-left:3px}
.stat-label{font-size:13.2px;color:var(--muted);margin-top:6px}

/* ---------- 通用板块 ---------- */
.sec{padding:88px 0;position:relative}
.sec-alt{background:linear-gradient(180deg,rgba(12,19,34,.72),rgba(7,11,22,0))}
.sec-head{max-width:760px;margin-bottom:46px}
.sec-head.center{margin-left:auto;margin-right:auto;text-align:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;
  color:var(--brand);margin-bottom:16px;
}
.eyebrow::before{content:"";width:24px;height:2px;border-radius:2px;background:linear-gradient(90deg,var(--brand),transparent)}
.sec-head h2{font-size:clamp(23px,3vw,36px);letter-spacing:-.02em}
.sec-head p{color:var(--muted);margin-top:16px;font-size:15.6px}

/* ---------- 功能卡 ---------- */
.grid-4{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:22px}
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:26px}
.feature-card{
  position:relative;overflow:hidden;
  padding:30px 26px;border-radius:var(--radius-lg);
  background:var(--surface);border:1px solid var(--line);
  transition:var(--ease);
}
.feature-card::after{
  content:"";position:absolute;inset:0;border-radius:inherit;
  background:radial-gradient(320px 180px at 100% 0%, rgba(34,211,238,.16), transparent 70%);
  opacity:0;transition:var(--ease);
}
.feature-card:hover{transform:translateY(-7px);border-color:var(--line-strong);box-shadow:var(--shadow)}
.feature-card:hover::after{opacity:1}
.icon-badge{
  width:50px;height:50px;border-radius:15px;display:grid;place-items:center;
  background:rgba(34,211,238,.13);color:#6ee7f9;font-size:19px;margin-bottom:20px;
  border:1px solid rgba(34,211,238,.24);
}
.feature-card h3{font-size:17.5px;margin-bottom:11px}
.feature-card p{font-size:14.6px;color:var(--muted)}

/* ---------- 联赛卡片 ---------- */
.league-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px}
.league-card{
  display:flex;flex-direction:column;overflow:hidden;
  border-radius:var(--radius-lg);background:var(--surface);
  border:1px solid var(--line);transition:var(--ease);
}
.league-card:hover{transform:translateY(-8px);border-color:var(--line-strong);box-shadow:var(--shadow)}
.thumb{position:relative;aspect-ratio:16/10;overflow:hidden;margin:0}
.thumb img{width:100%;height:100%;object-fit:cover;transition:transform .7s cubic-bezier(.4,0,.2,1)}
.league-card:hover .thumb img{transform:scale(1.07)}
.thumb::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,11,22,.05) 30%,rgba(7,11,22,.86));
}
.count-chip{
  position:absolute;left:14px;bottom:14px;z-index:2;
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:999px;font-size:12px;font-weight:600;
  color:#04121d;background:linear-gradient(135deg,var(--brand),#60a5fa);
}
.league-body{padding:22px 22px 26px;display:flex;flex-direction:column;gap:12px;flex:1}
.league-body h3{font-size:17px}
.league-body p{font-size:14.3px;color:var(--muted)}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:auto}

/* ---------- 步骤 ---------- */
.steps{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;counter-reset:stepc}
.step{
  position:relative;padding:30px 26px;border-radius:var(--radius-lg);
  background:linear-gradient(180deg,rgba(255,255,255,.065),rgba(255,255,255,.02));
  border:1px solid var(--line);transition:var(--ease);
}
.step:hover{transform:translateY(-6px);border-color:var(--line-strong);box-shadow:var(--shadow-soft)}
.step-no{
  width:44px;height:44px;border-radius:14px;display:grid;place-items:center;
  font-weight:800;font-size:17px;color:#04121d;
  background:linear-gradient(135deg,var(--brand),#60a5fa);
  margin-bottom:18px;box-shadow:0 10px 24px rgba(34,211,238,.26);
}
.step h3{font-size:17px;margin-bottom:10px}
.step p{font-size:14.5px;color:var(--muted)}

/* ---------- 提示条 ---------- */
.notice{
  display:flex;align-items:flex-start;gap:16px;
  padding:20px 24px;border-radius:var(--radius);
  background:linear-gradient(90deg,rgba(34,211,238,.14),rgba(59,130,246,.05));
  border:1px solid rgba(34,211,238,.3);
  margin-bottom:30px;
}
.notice i{color:var(--brand);font-size:18px;margin-top:4px}
.notice p{font-size:14.8px;color:#c8d6ea}
.notice strong{color:#fff}

/* ---------- 排行列表 ---------- */
.rank-wrap{display:grid;grid-template-columns:1.35fr .95fr;gap:34px;align-items:start}
.rank-list{display:grid;gap:12px}
.rank-item{
  display:flex;align-items:center;gap:16px;
  padding:16px 20px;border-radius:16px;
  background:var(--surface);border:1px solid var(--line);
  transition:var(--ease);
}
.rank-item:hover{background:var(--surface-2);border-color:var(--line-strong);transform:translateX(5px)}
.rank-no{
  width:32px;height:32px;flex-shrink:0;border-radius:11px;display:grid;place-items:center;
  font-weight:700;font-size:13.5px;color:#6ee7f9;
  background:rgba(34,211,238,.13);border:1px solid rgba(34,211,238,.22);
}
.rank-item:first-child .rank-no{color:#04121d;background:linear-gradient(135deg,var(--brand),#60a5fa);border-color:transparent}
.rank-main{flex:1;min-width:0}
.rank-main strong{display:block;font-size:15.2px;font-weight:600}
.rank-main span{font-size:13.2px;color:var(--muted)}
.rank-meta{display:flex;align-items:center;gap:12px;flex-shrink:0}
.badge-count{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:999px;font-size:12.5px;font-weight:600;
  color:#7dd3fc;background:rgba(34,211,238,.12);border:1px solid rgba(34,211,238,.24);
}
.avatar-group{display:flex;align-items:center}
.avatar-group span{
  width:30px;height:30px;border-radius:50%;display:grid;place-items:center;
  font-size:12px;font-weight:600;color:#04121d;
  background:linear-gradient(135deg,#67e8f9,#93c5fd);
  border:2px solid #0b1220;margin-left:-9px;
}
.avatar-group span:first-child{margin-left:0}

.side-panel{
  padding:28px 26px;border-radius:var(--radius-lg);
  background:linear-gradient(180deg,rgba(34,211,238,.1),rgba(255,255,255,.02));
  border:1px solid rgba(34,211,238,.24);
}
.side-panel h3{font-size:18px;margin-bottom:14px}
.side-panel p{font-size:14.4px;color:var(--muted);margin-bottom:20px}
.side-list{display:grid;gap:12px;margin-bottom:22px}
.side-list li{display:flex;align-items:flex-start;gap:10px;font-size:14.3px;color:#c8d6ea}
.side-list i{color:var(--brand);margin-top:5px;font-size:13px}

/* ---------- FAQ ---------- */
.faq{display:grid;gap:14px;max-width:940px;margin:0 auto}
.faq-item{
  border-radius:16px;background:var(--surface);border:1px solid var(--line);
  padding:4px 24px;transition:var(--ease);
}
.faq-item:hover{border-color:rgba(255,255,255,.22)}
.faq-item[open]{background:rgba(255,255,255,.07);border-color:var(--line-strong)}
.faq-item summary{
  list-style:none;cursor:pointer;padding:18px 0;
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  font-size:15.8px;font-weight:600;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"＋";font-size:17px;color:var(--brand);line-height:1;flex-shrink:0;
  transition:transform var(--ease);
}
.faq-item[open] summary::after{content:"－"}
.faq-item .faq-body{padding:0 0 20px;font-size:14.6px;color:var(--muted);max-width:800px}

/* ---------- CTA ---------- */
.cta-panel{
  position:relative;overflow:hidden;
  border-radius:var(--radius-xl);
  padding:66px 52px;
  border:1px solid rgba(34,211,238,.28);
  background-image:url("/assets/images/backpic/back-3.webp");
  background-size:cover;background-position:center;
}
.cta-panel::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(110deg,rgba(7,11,22,.94) 22%,rgba(7,11,22,.72) 62%,rgba(34,211,238,.22));
}
.cta-inner{position:relative;z-index:2;max-width:660px}
.cta-inner h2{font-size:clamp(24px,3.2vw,38px);letter-spacing:-.02em}
.cta-inner p{color:#c3d2e8;margin-top:16px;font-size:15.8px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}

/* ---------- 页脚 ---------- */
.site-footer{
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(12,19,34,.62),rgba(5,8,15,1));
  padding:72px 0 30px;margin-top:20px;
}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1fr;gap:40px}
.footer-brand p{color:var(--muted);font-size:14.4px;margin:18px 0 22px;max-width:400px}
.footer-social{display:flex;gap:10px}
.footer-social a{
  width:40px;height:40px;border-radius:13px;display:grid;place-items:center;
  background:rgba(255,255,255,.05);border:1px solid var(--line);
  color:var(--muted);transition:var(--ease);
}
.footer-social a:hover{color:#6ee7f9;border-color:var(--line-strong);background:rgba(34,211,238,.1);transform:translateY(-3px)}
.footer-col h4{font-size:15px;margin-bottom:20px;letter-spacing:.01em}
.footer-col li{margin-bottom:11px}
.footer-col a{color:var(--muted);font-size:14.2px;transition:var(--ease)}
.footer-col a:hover{color:var(--brand);padding-left:3px}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:16px;
  margin-top:54px;padding-top:26px;border-top:1px solid var(--line);
  font-size:13.4px;color:var(--muted);
}
.fb-links{display:flex;flex-wrap:wrap;gap:20px}
.fb-links a{transition:var(--ease)}
.fb-links a:hover{color:var(--brand)}

/* ---------- 响应式 ---------- */
@media (max-width:1180px){
  .nav-search span{display:none}
  .nav-search{padding:10px 13px}
  .grid-4,.league-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:1024px){
  .nav-menu{display:none}
  .nav-toggle{display:grid}
  .nav-menu{
    display:flex;flex-direction:column;align-items:stretch;gap:6px;
    position:fixed;top:92px;left:20px;right:20px;margin:0;
    padding:16px;border-radius:22px;
    background:rgba(9,14,26,.97);
    border:1px solid var(--line);
    box-shadow:0 30px 70px rgba(0,0,0,.55);
    -webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);
    opacity:0;transform:translateY(-14px);pointer-events:none;
    transition:opacity var(--ease),transform var(--ease);
    max-height:calc(100vh - 130px);overflow:auto;
  }
  .nav-menu.is-open{opacity:1;transform:translateY(0);pointer-events:auto}
  .nav-menu a{padding:13px 16px;border-radius:14px;font-size:15px}
  .nav-menu a.active{color:#04121d}
  .nav-actions .btn span{display:none}
  .nav-actions .btn{padding:10px 14px}
  .rank-wrap{grid-template-columns:1fr;gap:26px}
  .footer-grid{grid-template-columns:1.5fr 1fr 1fr;gap:34px}
  .footer-brand{grid-column:1 / -1}
}
@media (max-width:900px){
  .hero{padding:146px 0 74px}
  .stat-strip{grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
  .sec{padding:70px 0}
  .grid-3,.steps{grid-template-columns:1fr}
  .cta-panel{padding:52px 30px}
}
@media (max-width:768px){
  .container,.container-wide{padding:0 18px}
  .nav-inner{height:70px;gap:12px}
  .brand-name{font-size:15px}
  .brand-sub{font-size:9.5px;letter-spacing:.14em}
  .brand-mark{width:38px;height:38px;border-radius:12px;font-size:17px}
  .nav-menu{top:82px;left:14px;right:14px}
  .grid-4,.league-grid,.grid-2{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
  .hero-lead{font-size:15.8px}
  .hero-cta{gap:12px}
  .hero-cta .btn{flex:1 1 auto;justify-content:center}
  .sec-head{margin-bottom:34px}
  .notice{flex-direction:column;gap:10px}
}
@media (max-width:520px){
  .container,.container-wide{padding:0 15px}
  .nav-search{display:none}
  .stat-strip{grid-template-columns:1fr;gap:12px}
  .hero{padding:128px 0 62px}
  .hero h1{font-size:27px}
  .btn-lg{padding:14px 24px;font-size:15.4px}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .cta-panel{padding:40px 22px;border-radius:26px}
  .rank-item{flex-wrap:wrap}
  .rank-meta{width:100%;justify-content:flex-start}
  .faq-item{padding:4px 18px}
  .feature-card,.step{padding:24px 20px}
}

/* roulang page: category3 */
:root{
  --bg:#070b14;
  --bg-soft:#0c1220;
  --panel:rgba(255,255,255,.045);
  --panel-strong:rgba(255,255,255,.075);
  --line:rgba(255,255,255,.10);
  --line-strong:rgba(255,255,255,.18);
  --text:#eef2fa;
  --text-2:#a7b3c9;
  --text-3:#7c88a0;
  --brand:#3ddc97;
  --brand-2:#22c1a4;
  --accent:#ffb020;
  --accent-2:#ff7a45;
  --info:#4f9dff;
  --radius-s:10px;
  --radius:16px;
  --radius-l:24px;
  --radius-xl:32px;
  --shadow-s:0 6px 18px rgba(0,0,0,.28);
  --shadow:0 18px 44px rgba(0,0,0,.42);
  --shadow-glow:0 0 0 1px rgba(61,220,151,.22), 0 20px 50px rgba(34,193,164,.18);
  --gap:22px;
  --container:1200px;
  --font:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",Arial,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);
  background:
    radial-gradient(1100px 620px at 12% -8%, rgba(61,220,151,.14), transparent 62%),
    radial-gradient(900px 540px at 92% 4%, rgba(79,157,255,.14), transparent 60%),
    linear-gradient(180deg,#070b14 0%,#080d18 42%,#06090f 100%);
  background-attachment:fixed;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border-style:none;}
a{color:inherit;text-decoration:none;transition:color .2s ease,opacity .2s ease;}
a:focus-visible,button:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:6px;}
button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit;}
ul{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;line-height:1.3;font-weight:700;letter-spacing:.2px;}
p{margin:0;}
h1{font-size:clamp(28px,4vw,50px);}
h2{font-size:clamp(22px,2.6vw,34px);}
h3{font-size:clamp(18px,1.6vw,21px);}
::selection{background:rgba(61,220,151,.32);}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 22px;}
.container-wide{width:100%;max-width:1400px;margin:0 auto;padding:0 22px;}

/* ============ HEADER ============ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:60;
  transition:background .3s ease,box-shadow .3s ease,border-color .3s ease;
  border-bottom:1px solid transparent;
}
.nav-shell{
  background:rgba(9,13,22,.42);
  backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  border-bottom:1px solid rgba(255,255,255,.08);
  transition:background .3s ease,border-color .3s ease,box-shadow .3s ease;
}
.site-header.scrolled .nav-shell{
  background:rgba(7,11,20,.94);
  border-bottom-color:rgba(255,255,255,.12);
  box-shadow:0 12px 34px rgba(0,0,0,.48);
}
.nav-inner{display:flex;align-items:center;gap:22px;min-height:72px;}
.brand{display:inline-flex;align-items:center;gap:12px;flex:0 0 auto;}
.brand-mark{
  width:42px;height:42px;border-radius:13px;
  display:grid;place-items:center;
  font-size:20px;font-weight:800;color:#04140d;
  background:linear-gradient(135deg,var(--brand),var(--brand-2));
  box-shadow:0 8px 22px rgba(34,193,164,.36);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-name{font-size:17px;font-weight:800;letter-spacing:.3px;}
.brand-sub{font-size:11px;color:var(--text-3);letter-spacing:2.4px;text-transform:uppercase;}
.nav-menu{display:flex;align-items:center;gap:4px;margin-left:auto;}
.nav-menu a{
  position:relative;
  padding:10px 14px;border-radius:999px;
  font-size:14.5px;color:var(--text-2);white-space:nowrap;
  transition:color .2s ease,background .2s ease;
}
.nav-menu a:hover{color:var(--text);background:rgba(255,255,255,.07);}
.nav-menu a.active{color:#04140d;background:linear-gradient(135deg,var(--brand),var(--brand-2));font-weight:700;}
.nav-actions{display:flex;align-items:center;gap:12px;margin-left:auto;}
.nav-menu + .nav-actions{margin-left:0;}
.nav-search{
  display:inline-flex;align-items:center;gap:9px;
  padding:9px 16px;border-radius:999px;
  font-size:13.5px;color:var(--text-2);
  background:rgba(255,255,255,.06);
  border:1px solid var(--line);
  transition:background .2s ease,color .2s ease,border-color .2s ease;
}
.nav-search:hover{background:rgba(255,255,255,.12);color:var(--text);border-color:var(--line-strong);}
.nav-search i{color:var(--brand);font-size:13px;}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:13px;
  background:rgba(255,255,255,.08);border:1px solid var(--line);
  font-size:17px;color:var(--text);
}

/* ============ BUTTONS ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:14px 26px;border-radius:999px;
  font-size:15px;font-weight:700;letter-spacing:.3px;
  border:1px solid transparent;
  transition:transform .22s ease,box-shadow .22s ease,background .22s ease,color .22s ease,border-color .22s ease;
  will-change:transform;
}
.btn i{font-size:14px;}
.btn-primary{
  color:#04140d;
  background:linear-gradient(135deg,var(--brand),var(--brand-2));
  box-shadow:0 14px 34px rgba(34,193,164,.32);
}
.btn-primary:hover{transform:translateY(-3px);box-shadow:0 20px 44px rgba(34,193,164,.44);}
.btn-primary:active{transform:translateY(-1px);}
.btn-ghost{
  color:var(--text);
  background:rgba(255,255,255,.06);
  border-color:var(--line-strong);
}
.btn-ghost:hover{background:rgba(255,255,255,.13);transform:translateY(-3px);}
.btn-accent{
  color:#231000;
  background:linear-gradient(135deg,var(--accent),var(--accent-2));
  box-shadow:0 14px 32px rgba(255,122,69,.28);
}
.btn-accent:hover{transform:translateY(-3px);box-shadow:0 20px 42px rgba(255,122,69,.38);}
.btn-sm{padding:10px 18px;font-size:13.5px;}
.btn-block{width:100%;}

/* ============ HERO ============ */
.hero{
  position:relative;
  padding:150px 0 90px;
  overflow:hidden;
  border-bottom:1px solid var(--line);
}
.hero-bg{
  position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-1.webp");
  background-size:cover;background-position:center;
  opacity:.34;
  transform:scale(1.03);
}
.hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(6,10,18,.72) 0%,rgba(6,10,18,.86) 55%,rgba(6,10,18,.97) 100%);
}
.hero .container{position:relative;z-index:2;}
.crumbs{display:flex;align-items:center;gap:9px;font-size:13px;color:var(--text-3);margin-bottom:20px;}
.crumbs a:hover{color:var(--brand);}
.crumbs i{font-size:10px;opacity:.6;}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:52px;align-items:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:9px;
  padding:7px 16px;border-radius:999px;
  font-size:13px;font-weight:600;color:var(--brand);
  background:rgba(61,220,151,.10);
  border:1px solid rgba(61,220,151,.28);
  margin-bottom:22px;
}
.eyebrow i{font-size:12px;}
.hero h1{margin-bottom:20px;}
.hero h1 em{
  font-style:normal;
  background:linear-gradient(120deg,var(--brand),#7fe3ff 65%,var(--info));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-lead{font-size:16.5px;color:var(--text-2);max-width:640px;margin-bottom:30px;}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:36px;}
.hero-stats{display:flex;flex-wrap:wrap;gap:14px;}
.stat{
  flex:1 1 140px;min-width:130px;
  padding:16px 18px;border-radius:var(--radius);
  background:var(--panel);border:1px solid var(--line);
  backdrop-filter:blur(8px);
}
.stat b{display:block;font-size:24px;font-weight:800;color:var(--brand);line-height:1.2;}
.stat span{font-size:12.5px;color:var(--text-3);}
.hero-card{
  position:relative;
  border-radius:var(--radius-xl);
  overflow:hidden;
  border:1px solid var(--line-strong);
  box-shadow:var(--shadow);
  background:var(--bg-soft);
}
.hero-card img{width:100%;height:330px;object-fit:cover;}
.hero-card-body{
  padding:20px 22px 24px;
  background:linear-gradient(180deg,rgba(10,15,26,.9),rgba(8,12,20,.98));
  border-top:1px solid var(--line);
}
.hero-card-body h3{font-size:17px;margin-bottom:8px;}
.hero-card-body p{font-size:13.5px;color:var(--text-2);}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px;}
.tag{
  padding:5px 12px;border-radius:999px;
  font-size:12px;font-weight:600;
  color:var(--brand);
  background:rgba(61,220,151,.10);
  border:1px solid rgba(61,220,151,.24);
}
.tag.amber{color:var(--accent);background:rgba(255,176,32,.10);border-color:rgba(255,176,32,.26);}
.tag.blue{color:#8dc0ff;background:rgba(79,157,255,.10);border-color:rgba(79,157,255,.26);}

/* ============ SECTIONS ============ */
.section{padding:82px 0;position:relative;}
.section.alt{background:linear-gradient(180deg,rgba(255,255,255,.018),rgba(255,255,255,0));}
.section-head{max-width:760px;margin-bottom:44px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.section-kicker{
  display:inline-block;font-size:12.5px;font-weight:700;letter-spacing:2.2px;
  text-transform:uppercase;color:var(--brand);margin-bottom:14px;
}
.section-head h2{margin-bottom:14px;}
.section-head p{color:var(--text-2);font-size:15.5px;}
.divider{height:1px;background:linear-gradient(90deg,transparent,var(--line-strong),transparent);}

.grid{display:grid;gap:var(--gap);}
.g-2{grid-template-columns:repeat(2,1fr);}
.g-3{grid-template-columns:repeat(3,1fr);}
.g-4{grid-template-columns:repeat(4,1fr);}

/* ============ CARD ============ */
.card{
  position:relative;
  padding:26px 24px;
  border-radius:var(--radius-l);
  background:var(--panel);
  border:1px solid var(--line);
  transition:transform .28s ease,border-color .28s ease,background .28s ease,box-shadow .28s ease;
}
.card:hover{
  transform:translateY(-6px);
  border-color:rgba(61,220,151,.36);
  background:var(--panel-strong);
  box-shadow:var(--shadow);
}
.card-icon{
  width:50px;height:50px;border-radius:15px;
  display:grid;place-items:center;
  font-size:20px;color:var(--brand);
  background:rgba(61,220,151,.11);
  border:1px solid rgba(61,220,151,.22);
  margin-bottom:18px;
}
.card-icon.amber{color:var(--accent);background:rgba(255,176,32,.11);border-color:rgba(255,176,32,.22);}
.card-icon.blue{color:var(--info);background:rgba(79,157,255,.11);border-color:rgba(79,157,255,.22);}
.card h3{margin-bottom:10px;}
.card p{font-size:14.5px;color:var(--text-2);}
.card-list{margin-top:16px;display:grid;gap:9px;}
.card-list li{
  display:flex;gap:9px;align-items:flex-start;
  font-size:13.5px;color:var(--text-2);
}
.card-list li i{color:var(--brand);font-size:12px;margin-top:6px;}
.card-num{
  position:absolute;top:20px;right:24px;
  font-size:34px;font-weight:800;
  color:rgba(255,255,255,.06);
  line-height:1;
}

/* ============ FEATURE SPLIT ============ */
.split{display:grid;grid-template-columns:1fr 1fr;gap:52px;align-items:center;}
.split-media{
  border-radius:var(--radius-xl);
  overflow:hidden;border:1px solid var(--line-strong);
  box-shadow:var(--shadow);
}
.split-media img{width:100%;height:420px;object-fit:cover;}
.split h2{margin-bottom:16px;}
.split p{color:var(--text-2);margin-bottom:16px;font-size:15.5px;}

/* ============ SCENES ============ */
.scene{
  display:flex;gap:18px;
  padding:24px;border-radius:var(--radius-l);
  background:var(--panel);border:1px solid var(--line);
  transition:border-color .25s ease,transform .25s ease,background .25s ease;
}
.scene:hover{border-color:rgba(79,157,255,.34);transform:translateX(6px);background:var(--panel-strong);}
.scene-ico{
  flex:0 0 48px;height:48px;border-radius:14px;
  display:grid;place-items:center;font-size:19px;
  color:#04140d;background:linear-gradient(135deg,var(--brand),var(--brand-2));
}
.scene h4{font-size:16.5px;margin-bottom:7px;}
.scene p{font-size:14px;color:var(--text-2);}

/* ============ STEPS ============ */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--gap);counter-reset:step;}
.step{
  position:relative;
  padding:30px 22px 26px;
  border-radius:var(--radius-l);
  background:linear-gradient(180deg,rgba(255,255,255,.055),rgba(255,255,255,.02));
  border:1px solid var(--line);
  transition:transform .26s ease,border-color .26s ease;
}
.step:hover{transform:translateY(-6px);border-color:rgba(61,220,151,.34);}
.step-no{
  width:38px;height:38px;border-radius:12px;
  display:grid;place-items:center;
  font-size:15px;font-weight:800;color:#04140d;
  background:linear-gradient(135deg,var(--brand),var(--brand-2));
  margin-bottom:16px;
}
.step h4{font-size:16.5px;margin-bottom:9px;}
.step p{font-size:14px;color:var(--text-2);}

/* ============ RANK LIST ============ */
.rank{
  border-radius:var(--radius-l);
  border:1px solid var(--line);
  background:var(--panel);
  overflow:hidden;
}
.rank-item{
  display:flex;align-items:center;gap:16px;
  padding:18px 22px;
  border-bottom:1px solid var(--line);
  transition:background .2s ease;
}
.rank-item:last-child{border-bottom:none;}
.rank-item:hover{background:rgba(255,255,255,.05);}
.rank-no{
  flex:0 0 34px;height:34px;border-radius:10px;
  display:grid;place-items:center;font-size:14px;font-weight:800;
  background:rgba(255,255,255,.07);color:var(--text-2);
}
.rank-item:nth-child(1) .rank-no{background:linear-gradient(135deg,var(--accent),var(--accent-2));color:#231000;}
.rank-item:nth-child(2) .rank-no{background:rgba(61,220,151,.22);color:var(--brand);}
.rank-item:nth-child(3) .rank-no{background:rgba(79,157,255,.22);color:#8dc0ff;}
.rank-body{flex:1;min-width:0;}
.rank-body strong{display:block;font-size:15.5px;margin-bottom:3px;}
.rank-body span{font-size:13px;color:var(--text-3);}
.rank-meta{font-size:12.5px;color:var(--text-3);white-space:nowrap;}

/* ============ FAQ ============ */
.faq{display:grid;gap:14px;max-width:900px;margin:0 auto;}
.faq-item{
  border-radius:var(--radius);
  border:1px solid var(--line);
  background:var(--panel);
  overflow:hidden;
  transition:border-color .25s ease,background .25s ease;
}
.faq-item.open{border-color:rgba(61,220,151,.34);background:var(--panel-strong);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 22px;text-align:left;
  font-size:16px;font-weight:700;color:var(--text);
}
.faq-q i{color:var(--brand);font-size:14px;transition:transform .25s ease;flex:0 0 auto;}
.faq-item.open .faq-q i{transform:rotate(45deg);}
.faq-a{
  max-height:0;overflow:hidden;
  transition:max-height .34s ease,padding .34s ease;
  padding:0 22px;
}
.faq-item.open .faq-a{max-height:340px;padding:0 22px 22px;}
.faq-a p{font-size:14.5px;color:var(--text-2);}

/* ============ CTA ============ */
.cta-band{
  position:relative;overflow:hidden;
  border-radius:var(--radius-xl);
  border:1px solid rgba(61,220,151,.26);
  background:
    radial-gradient(700px 320px at 8% 10%, rgba(61,220,151,.20), transparent 60%),
    radial-gradient(600px 300px at 92% 90%, rgba(79,157,255,.18), transparent 60%),
    linear-gradient(135deg,rgba(16,24,38,.96),rgba(9,13,22,.98));
  padding:56px 48px;
  box-shadow:var(--shadow);
}
.cta-band h2{margin-bottom:14px;max-width:720px;}
.cta-band p{color:var(--text-2);max-width:700px;margin-bottom:28px;font-size:15.5px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;}

/* ============ NOTICE ============ */
.notice{
  display:flex;gap:14px;align-items:flex-start;
  padding:18px 22px;border-radius:var(--radius);
  background:rgba(255,176,32,.07);
  border:1px solid rgba(255,176,32,.24);
  font-size:14px;color:#f0d9a8;
}
.notice i{color:var(--accent);margin-top:5px;}

/* ============ FOOTER ============ */
.site-footer{
  margin-top:20px;
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(255,255,255,.02),rgba(0,0,0,.32));
  padding:60px 0 26px;
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;margin-bottom:44px;}
.footer-brand p{font-size:14px;color:var(--text-2);margin:18px 0 20px;max-width:360px;}
.footer-social{display:flex;gap:10px;}
.footer-social a{
  width:40px;height:40px;border-radius:12px;
  display:grid;place-items:center;
  background:rgba(255,255,255,.06);border:1px solid var(--line);
  color:var(--text-2);font-size:15px;
  transition:background .2s ease,color .2s ease,transform .2s ease;
}
.footer-social a:hover{background:rgba(61,220,151,.16);color:var(--brand);transform:translateY(-3px);}
.footer-col h4{font-size:15px;margin-bottom:18px;color:var(--text);}
.footer-col li{margin-bottom:11px;}
.footer-col a{font-size:14px;color:var(--text-2);}
.footer-col a:hover{color:var(--brand);}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between;
  padding-top:24px;border-top:1px solid var(--line);
  font-size:13px;color:var(--text-3);
}
.fb-links{display:flex;flex-wrap:wrap;gap:18px;}
.fb-links a:hover{color:var(--brand);}

/* ============ RESPONSIVE ============ */
@media (max-width:1080px){
  .nav-menu a{padding:9px 10px;font-size:13.5px;}
  .nav-search span{display:none;}
  .nav-search{padding:10px 13px;}
  .hero-grid{grid-template-columns:1fr;gap:38px;}
  .hero-card img{height:280px;}
  .split{grid-template-columns:1fr;gap:34px;}
  .split-media img{height:320px;}
  .g-4{grid-template-columns:repeat(2,1fr);}
  .steps{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:820px){
  .nav-menu{
    position:absolute;top:100%;left:0;right:0;
    flex-direction:column;align-items:stretch;gap:2px;
    padding:14px 18px 20px;
    background:rgba(7,11,20,.98);
    border-bottom:1px solid var(--line-strong);
    box-shadow:0 22px 40px rgba(0,0,0,.5);
    display:none;
  }
  .nav-menu.open{display:flex;}
  .nav-menu a{padding:13px 14px;border-radius:12px;font-size:15px;}
  .nav-toggle{display:grid;place-items:center;}
  .nav-actions{margin-left:auto;}
  .hero{padding:126px 0 68px;}
  .section{padding:64px 0;}
  .g-3{grid-template-columns:repeat(2,1fr);}
  .cta-band{padding:42px 26px;}
  .rank-item{flex-wrap:wrap;}
  .rank-meta{width:100%;padding-left:50px;}
}
@media (max-width:560px){
  .container,.container-wide{padding:0 16px;}
  .brand-sub{display:none;}
  .brand-name{font-size:15px;}
  .g-2,.g-3,.g-4,.steps{grid-template-columns:1fr;}
  .hero-lead{font-size:15px;}
  .hero-stats{gap:10px;}
  .stat{flex:1 1 100%;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .btn{width:100%;}
  .hero-cta .btn,.cta-actions .btn{width:100%;}
  .nav-actions .btn{width:auto;}
  .rank-meta{padding-left:0;}
  .faq-q{font-size:15px;padding:17px 18px;}
  .faq-a{padding:0 18px;}
  .faq-item.open .faq-a{padding:0 18px 18px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;}
}

/* roulang page: category4 */
:root{
  --bg:#070b14;
  --bg-soft:#0b1120;
  --bg-deep:#050810;
  --surface:rgba(255,255,255,.045);
  --surface-2:rgba(255,255,255,.075);
  --surface-3:rgba(255,255,255,.11);
  --border:rgba(255,255,255,.10);
  --border-strong:rgba(255,255,255,.20);
  --text:#eaf0ff;
  --text-soft:#c3cfe6;
  --muted:#8b9cbb;
  --primary:#22d3ee;
  --primary-2:#3b82f6;
  --accent:#a855f7;
  --lime:#a3e635;
  --amber:#fbbf24;
  --radius-xs:8px;
  --radius-sm:12px;
  --radius:18px;
  --radius-lg:26px;
  --radius-pill:999px;
  --shadow-xs:0 2px 10px rgba(0,0,0,.25);
  --shadow-sm:0 8px 24px rgba(2,8,24,.38);
  --shadow:0 20px 50px rgba(2,8,24,.55);
  --shadow-glow:0 18px 46px rgba(34,211,238,.20);
  --container:1160px;
  --container-wide:1320px;
  --gap:24px;
  --ease:cubic-bezier(.22,.68,.32,1);
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  padding:0;
  background:
    radial-gradient(1100px 620px at 82% -8%,rgba(34,211,238,.14),transparent 62%),
    radial-gradient(900px 520px at 6% 4%,rgba(168,85,247,.14),transparent 60%),
    var(--bg);
  color:var(--text);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.75;
  letter-spacing:.01em;
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto;}
a{color:inherit;text-decoration:none;transition:color .25s var(--ease),opacity .25s var(--ease);}
a:hover{color:var(--primary);}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit;}
input,textarea,select{font-family:inherit;font-size:1rem;color:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
h1,h2,h3,h4{line-height:1.25;font-weight:800;letter-spacing:-.01em;}
:focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:6px;}
::selection{background:rgba(34,211,238,.30);color:#fff;}

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

/* ============ 顶部导航 ============ */
.site-header{
  position:fixed;
  inset:0 0 auto 0;
  z-index:120;
  transition:background .3s var(--ease),box-shadow .3s var(--ease),border-color .3s var(--ease);
  border-bottom:1px solid transparent;
}
.nav-shell{
  background:rgba(7,11,20,.42);
  backdrop-filter:blur(20px) saturate(150%);
  -webkit-backdrop-filter:blur(20px) saturate(150%);
  border-bottom:1px solid rgba(255,255,255,.08);
  transition:background .3s var(--ease),border-color .3s var(--ease),box-shadow .3s var(--ease);
}
.site-header.is-solid .nav-shell{
  background:rgba(7,11,20,.92);
  border-bottom-color:rgba(255,255,255,.10);
  box-shadow:0 14px 40px rgba(2,8,24,.55);
}
.nav-inner{
  display:flex;
  align-items:center;
  gap:22px;
  min-height:74px;
}
.brand{display:inline-flex;align-items:center;gap:12px;flex-shrink:0;}
.brand-mark{
  width:42px;height:42px;
  display:grid;place-items:center;
  border-radius:13px;
  background:linear-gradient(140deg,var(--primary),var(--primary-2) 55%,var(--accent));
  color:#04121a;
  font-weight:900;
  font-size:1.22rem;
  box-shadow:0 10px 26px rgba(34,211,238,.34);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-name{font-size:1.03rem;font-weight:800;color:#fff;letter-spacing:.01em;white-space:nowrap;}
.brand-sub{font-size:.66rem;letter-spacing:.30em;text-transform:uppercase;color:var(--muted);}
.brand:hover .brand-name{color:var(--primary);}

.nav-menu{
  display:flex;
  align-items:center;
  gap:4px;
  margin-left:auto;
}
.nav-menu a{
  position:relative;
  padding:9px 15px;
  border-radius:var(--radius-pill);
  font-size:.93rem;
  font-weight:600;
  color:var(--text-soft);
  white-space:nowrap;
  transition:color .25s var(--ease),background .25s var(--ease);
}
.nav-menu a:hover{color:#fff;background:rgba(255,255,255,.07);}
.nav-menu a.active{
  color:#04121a;
  background:linear-gradient(120deg,var(--primary),#7dd3fc);
  box-shadow:0 8px 22px rgba(34,211,238,.30);
}
.nav-menu a.active:hover{color:#04121a;}

.nav-actions{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.nav-search{
  display:inline-flex;align-items:center;gap:8px;
  padding:9px 16px;
  border-radius:var(--radius-pill);
  border:1px solid var(--border);
  background:rgba(255,255,255,.05);
  font-size:.86rem;
  color:var(--muted);
  transition:border-color .25s var(--ease),color .25s var(--ease),background .25s var(--ease);
}
.nav-search i{color:var(--primary);font-size:.82rem;}
.nav-search:hover{color:#fff;border-color:var(--border-strong);background:rgba(255,255,255,.09);}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:13px 26px;
  border-radius:var(--radius-pill);
  font-size:.95rem;
  font-weight:700;
  letter-spacing:.01em;
  cursor:pointer;
  border:1px solid transparent;
  transition:transform .25s var(--ease),box-shadow .25s var(--ease),background .25s var(--ease),color .25s var(--ease),border-color .25s var(--ease);
  white-space:nowrap;
}
.btn-sm{padding:10px 20px;font-size:.87rem;}
.btn-primary{
  background:linear-gradient(120deg,var(--primary),#4cc9f0 50%,var(--primary-2));
  color:#04121a;
  box-shadow:0 12px 30px rgba(34,211,238,.28);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 18px 40px rgba(34,211,238,.42);color:#04121a;}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{
  background:rgba(255,255,255,.05);
  border-color:var(--border-strong);
  color:var(--text);
}
.btn-ghost:hover{background:rgba(255,255,255,.11);border-color:rgba(34,211,238,.55);color:#fff;transform:translateY(-2px);}
.btn-block{width:100%;}

.nav-toggle{
  display:none;
  width:44px;height:44px;
  border-radius:12px;
  border:1px solid var(--border);
  background:rgba(255,255,255,.05);
  color:#fff;
  font-size:1.05rem;
}
.nav-toggle:hover{background:rgba(255,255,255,.12);}

/* ============ 通用板块 ============ */
main{display:block;}
.section{padding:88px 0;position:relative;}
.section-sm{padding:64px 0;}
.section-alt{
  background:linear-gradient(180deg,rgba(255,255,255,.020),rgba(255,255,255,0));
  border-top:1px solid rgba(255,255,255,.06);
  border-bottom:1px solid rgba(255,255,255,.06);
}
.section-head{max-width:760px;margin:0 0 44px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 15px;
  border-radius:var(--radius-pill);
  border:1px solid rgba(34,211,238,.30);
  background:rgba(34,211,238,.10);
  color:var(--primary);
  font-size:.78rem;
  font-weight:700;
  letter-spacing:.10em;
  text-transform:uppercase;
  margin-bottom:18px;
}
.section-head h2{font-size:clamp(1.6rem,2.9vw,2.28rem);margin-bottom:14px;}
.section-head p{color:var(--muted);font-size:1.02rem;}

/* ============ 内页 Hero ============ */
.page-hero{
  position:relative;
  padding:158px 0 76px;
  overflow:hidden;
  isolation:isolate;
}
.page-hero::before{
  content:"";
  position:absolute;
  inset:0;
  z-index:-2;
  background-image:url("/assets/images/backpic/back-3.webp");
  background-size:cover;
  background-position:center;
  opacity:.32;
  transform:scale(1.04);
}
.page-hero::after{
  content:"";
  position:absolute;
  inset:0;
  z-index:-1;
  background:
    linear-gradient(180deg,rgba(7,11,20,.72) 0%,rgba(7,11,20,.86) 46%,var(--bg) 100%),
    radial-gradient(760px 380px at 84% 22%,rgba(34,211,238,.24),transparent 68%),
    radial-gradient(680px 340px at 12% 74%,rgba(168,85,247,.22),transparent 70%);
}
.crumbs{
  display:flex;flex-wrap:wrap;align-items:center;gap:9px;
  font-size:.84rem;color:var(--muted);margin-bottom:22px;
}
.crumbs a{color:var(--text-soft);}
.crumbs i{font-size:.62rem;opacity:.6;}
.hero-grid{
  display:grid;
  grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);
  gap:52px;
  align-items:center;
}
.page-hero h1{
  font-size:clamp(2.02rem,4.4vw,3.34rem);
  line-height:1.16;
  margin-bottom:20px;
}
.page-hero h1 .grad{
  background:linear-gradient(100deg,var(--primary),#8ab4ff 52%,var(--accent));
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.page-hero .lead{
  color:var(--text-soft);
  font-size:1.07rem;
  max-width:60ch;
  margin-bottom:26px;
}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:30px;}
.tag{
  display:inline-flex;align-items:center;gap:7px;
  padding:7px 15px;
  border-radius:var(--radius-pill);
  border:1px solid var(--border);
  background:var(--surface);
  color:var(--text-soft);
  font-size:.83rem;
  font-weight:600;
  transition:border-color .25s var(--ease),color .25s var(--ease),transform .25s var(--ease);
}
.tag i{color:var(--primary);font-size:.76rem;}
.tag:hover{border-color:rgba(34,211,238,.50);color:#fff;transform:translateY(-2px);}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;}

.hero-side{
  border:1px solid var(--border);
  border-radius:var(--radius-lg);
  background:linear-gradient(160deg,rgba(255,255,255,.09),rgba(255,255,255,.03));
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  box-shadow:var(--shadow);
  padding:26px;
}
.hero-side h3{
  font-size:1.06rem;margin-bottom:6px;
  display:flex;align-items:center;gap:9px;
}
.hero-side h3 i{color:var(--primary);}
.hero-side .hint{font-size:.85rem;color:var(--muted);margin-bottom:18px;}
.mini-list li{
  display:flex;align-items:center;justify-content:space-between;
  gap:14px;
  padding:12px 0;
  border-bottom:1px dashed rgba(255,255,255,.10);
  font-size:.92rem;
}
.mini-list li:last-child{border-bottom:0;}
.mini-list .ml-name{display:flex;align-items:center;gap:10px;color:var(--text-soft);font-weight:600;}
.mini-list .dot{
  width:9px;height:9px;border-radius:50%;
  background:var(--primary);
  box-shadow:0 0 0 4px rgba(34,211,238,.16);
  flex-shrink:0;
}
.mini-list .dot.violet{background:var(--accent);box-shadow:0 0 0 4px rgba(168,85,247,.16);}
.mini-list .dot.lime{background:var(--lime);box-shadow:0 0 0 4px rgba(163,230,53,.16);}
.mini-list .dot.amber{background:var(--amber);box-shadow:0 0 0 4px rgba(251,191,36,.16);}
.mini-list .ml-val{color:#fff;font-weight:700;font-variant-numeric:tabular-nums;}

.stat-strip{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:18px;
  margin-top:52px;
  padding:24px;
  border:1px solid var(--border);
  border-radius:var(--radius-lg);
  background:rgba(255,255,255,.045);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
}
.stat-item{text-align:center;padding:6px 10px;border-right:1px solid rgba(255,255,255,.08);}
.stat-item:last-child{border-right:0;}
.stat-num{
  font-size:1.72rem;font-weight:900;
  background:linear-gradient(120deg,var(--primary),#a5b4fc);
  -webkit-background-clip:text;background-clip:text;color:transparent;
  font-variant-numeric:tabular-nums;
}
.stat-label{font-size:.82rem;color:var(--muted);margin-top:4px;}

/* ============ 卡片网格 ============ */
.grid{display:grid;gap:var(--gap);}
.grid-2{grid-template-columns:repeat(2,minmax(0,1fr));}
.grid-3{grid-template-columns:repeat(3,minmax(0,1fr));}
.grid-4{grid-template-columns:repeat(4,minmax(0,1fr));}

.card{
  position:relative;
  border:1px solid var(--border);
  border-radius:var(--radius);
  background:linear-gradient(165deg,rgba(255,255,255,.070),rgba(255,255,255,.022));
  box-shadow:var(--shadow-xs);
  overflow:hidden;
  transition:transform .3s var(--ease),border-color .3s var(--ease),box-shadow .3s var(--ease);
}
.card:hover{
  transform:translateY(-5px);
  border-color:rgba(34,211,238,.42);
  box-shadow:var(--shadow);
}
.card-media{position:relative;aspect-ratio:16/10;overflow:hidden;}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .55s var(--ease);}
.card:hover .card-media img{transform:scale(1.06);}
.card-media::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(5,8,16,.02) 30%,rgba(5,8,16,.88));
}
.card-badge{
  position:absolute;top:14px;left:14px;z-index:2;
  padding:5px 13px;
  border-radius:var(--radius-pill);
  background:rgba(7,11,20,.72);
  border:1px solid rgba(34,211,238,.40);
  color:var(--primary);
  font-size:.74rem;
  font-weight:700;
  letter-spacing:.05em;
  backdrop-filter:blur(8px);
}
.card-body{padding:22px;}
.card-body h3{font-size:1.12rem;margin-bottom:10px;}
.card-body p{color:var(--muted);font-size:.93rem;}
.card-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:14px;
  margin-top:16px;padding-top:14px;
  border-top:1px dashed rgba(255,255,255,.10);
  font-size:.82rem;color:var(--muted);
}
.card-meta span{display:inline-flex;align-items:center;gap:6px;}
.card-meta i{color:var(--primary);font-size:.78rem;}

/* 卖点卡 */
.feature{
  padding:28px 26px;
  border-radius:var(--radius);
  border:1px solid var(--border);
  background:linear-gradient(170deg,rgba(255,255,255,.070),rgba(255,255,255,.020));
  transition:transform .3s var(--ease),border-color .3s var(--ease),box-shadow .3s var(--ease);
}
.feature:hover{transform:translateY(-5px);border-color:rgba(168,85,247,.42);box-shadow:var(--shadow);}
.feature-icon{
  width:52px;height:52px;
  display:grid;place-items:center;
  border-radius:15px;
  background:linear-gradient(140deg,rgba(34,211,238,.22),rgba(168,85,247,.22));
  border:1px solid rgba(255,255,255,.14);
  color:var(--primary);
  font-size:1.24rem;
  margin-bottom:18px;
}
.feature h3{font-size:1.08rem;margin-bottom:10px;}
.feature p{color:var(--muted);font-size:.93rem;}

/* ============ 排行列表 ============ */
.rank-card{
  border:1px solid var(--border);
  border-radius:var(--radius-lg);
  background:rgba(255,255,255,.035);
  overflow:hidden;
}
.rank-row{
  display:grid;
  grid-template-columns:64px minmax(0,1fr) 130px 110px 116px;
  align-items:center;
  gap:18px;
  padding:18px 26px;
  border-bottom:1px solid rgba(255,255,255,.07);
  transition:background .25s var(--ease);
}
.rank-row:last-child{border-bottom:0;}
.rank-row:hover{background:rgba(34,211,238,.075);}
.rank-no{
  width:38px;height:38px;
  display:grid;place-items:center;
  border-radius:11px;
  background:rgba(255,255,255,.07);
  border:1px solid var(--border);
  font-weight:800;
  font-size:.94rem;
  font-variant-numeric:tabular-nums;
}
.rank-row:nth-child(1) .rank-no{background:linear-gradient(135deg,var(--primary),var(--primary-2));color:#04121a;border-color:transparent;}
.rank-row:nth-child(2) .rank-no{background:linear-gradient(135deg,#a855f7,#6366f1);color:#fff;border-color:transparent;}
.rank-row:nth-child(3) .rank-no{background:linear-gradient(135deg,#a3e635,#22c55e);color:#06210f;border-color:transparent;}
.rank-main strong{display:block;font-size:1rem;}
.rank-main span{font-size:.82rem;color:var(--muted);}
.rank-tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;
  border-radius:var(--radius-pill);
  background:rgba(34,211,238,.10);
  border:1px solid rgba(34,211,238,.26);
  color:var(--primary);
  font-size:.76rem;
  font-weight:700;
}
.rank-tag.violet{background:rgba(168,85,247,.12);border-color:rgba(168,85,247,.30);color:#d8b4fe;}
.rank-tag.lime{background:rgba(163,230,53,.12);border-color:rgba(163,230,53,.30);color:#bef264;}
.rank-num{font-variant-numeric:tabular-nums;font-weight:800;color:#fff;text-align:right;}
.rank-num em{display:block;font-style:normal;font-size:.74rem;color:var(--muted);font-weight:500;}
.rank-progress{height:6px;border-radius:99px;background:rgba(255,255,255,.10);overflow:hidden;}
.rank-progress i{display:block;height:100%;border-radius:99px;background:linear-gradient(90deg,var(--primary),var(--accent));}

/* ============ 流程 ============ */
.flow{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:22px;counter-reset:flow;}
.flow-item{
  position:relative;
  padding:28px 24px 26px;
  border:1px solid var(--border);
  border-radius:var(--radius);
  background:linear-gradient(175deg,rgba(255,255,255,.068),rgba(255,255,255,.018));
  transition:transform .3s var(--ease),border-color .3s var(--ease);
}
.flow-item:hover{transform:translateY(-5px);border-color:rgba(34,211,238,.42);}
.flow-item::before{
  counter-increment:flow;
  content:counter(flow,decimal-leading-zero);
  display:block;
  font-size:1.6rem;
  font-weight:900;
  letter-spacing:.02em;
  background:linear-gradient(120deg,var(--primary),var(--accent));
  -webkit-background-clip:text;background-clip:text;color:transparent;
  margin-bottom:14px;
}
.flow-item h3{font-size:1.04rem;margin-bottom:9px;}
.flow-item p{color:var(--muted);font-size:.91rem;}

/* ============ 讨论 / 话题 ============ */
.topic-layout{display:grid;grid-template-columns:minmax(0,1.25fr) minmax(0,.75fr);gap:30px;align-items:start;}
.topic-card{
  border:1px solid var(--border);
  border-radius:var(--radius-lg);
  background:rgba(255,255,255,.035);
  padding:8px;
}
.topic-item{
  display:flex;align-items:flex-start;gap:16px;
  padding:18px 18px;
  border-radius:var(--radius-sm);
  transition:background .25s var(--ease);
}
.topic-item + .topic-item{border-top:1px solid rgba(255,255,255,.06);}
.topic-item:hover{background:rgba(34,211,238,.075);}
.avatars{display:flex;flex-shrink:0;}
.avatars span{
  width:38px;height:38px;
  display:grid;place-items:center;
  border-radius:50%;
  font-size:.82rem;
  font-weight:800;
  color:#04121a;
  border:2px solid #0b1120;
  margin-left:-10px;
}
.avatars span:first-child{margin-left:0;}
.avatars span:nth-child(1){background:linear-gradient(140deg,#22d3ee,#3b82f6);}
.avatars span:nth-child(2){background:linear-gradient(140deg,#a855f7,#6366f1);color:#fff;}
.avatars span:nth-child(3){background:linear-gradient(140deg,#a3e635,#22c55e);}
.topic-main h3{font-size:1rem;margin-bottom:7px;}
.topic-main p{font-size:.88rem;color:var(--muted);}
.count-badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 11px;
  border-radius:var(--radius-pill);
  background:rgba(255,255,255,.07);
  border:1px solid var(--border);
  font-size:.76rem;
  color:var(--text-soft);
  font-variant-numeric:tabular-nums;
}
.count-badge.hot{background:rgba(251,191,36,.12);border-color:rgba(251,191,36,.32);color:#fcd34d;}

.side-panel{
  border:1px solid var(--border);
  border-radius:var(--radius-lg);
  background:linear-gradient(170deg,rgba(255,255,255,.075),rgba(255,255,255,.020));
  padding:26px;
}
.side-panel h3{font-size:1.06rem;margin-bottom:8px;display:flex;align-items:center;gap:9px;}
.side-panel h3 i{color:var(--primary);}
.side-panel .hint{font-size:.86rem;color:var(--muted);margin-bottom:18px;}
.pill-group{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:22px;}
.pill{
  padding:7px 15px;
  border-radius:var(--radius-pill);
  border:1px solid var(--border);
  background:rgba(255,255,255,.05);
  font-size:.84rem;
  font-weight:600;
  color:var(--text-soft);
  transition:all .25s var(--ease);
}
.pill:hover{border-color:rgba(34,211,238,.55);color:#fff;background:rgba(34,211,238,.14);transform:translateY(-2px);}
.pill.on{background:linear-gradient(120deg,var(--primary),var(--primary-2));color:#04121a;border-color:transparent;}
.notice{
  display:flex;gap:12px;
  padding:16px 18px;
  border-radius:var(--radius-sm);
  border:1px solid rgba(251,191,36,.28);
  background:rgba(251,191,36,.09);
  font-size:.86rem;
  color:#fde68a;
  line-height:1.65;
}
.notice i{margin-top:3px;}

/* ============ FAQ ============ */
.faq-list{display:grid;gap:14px;max-width:900px;margin:0 auto;}
.faq-list details{
  border:1px solid var(--border);
  border-radius:var(--radius);
  background:linear-gradient(170deg,rgba(255,255,255,.062),rgba(255,255,255,.018));
  overflow:hidden;
  transition:border-color .28s var(--ease),box-shadow .28s var(--ease);
}
.faq-list details[open]{
  border-color:rgba(34,211,238,.42);
  box-shadow:0 16px 40px rgba(2,8,24,.45);
}
.faq-list summary{
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 24px;
  font-size:1.01rem;
  font-weight:700;
  cursor:pointer;
  list-style:none;
  transition:color .25s var(--ease);
}
.faq-list summary::-webkit-details-marker{display:none;}
.faq-list summary:hover{color:var(--primary);}
.faq-list summary .ficon{
  width:30px;height:30px;
  display:grid;place-items:center;
  border-radius:50%;
  background:rgba(34,211,238,.14);
  border:1px solid rgba(34,211,238,.32);
  color:var(--primary);
  font-size:.76rem;
  flex-shrink:0;
  transition:transform .3s var(--ease);
}
.faq-list details[open] summary .ficon{transform:rotate(180deg);}
.faq-list .faq-body{
  padding:0 24px 22px;
  color:var(--muted);
  font-size:.95rem;
  line-height:1.82;
}

/* ============ CTA ============ */
.cta-band{
  position:relative;
  border:1px solid rgba(34,211,238,.28);
  border-radius:var(--radius-lg);
  background:
    radial-gradient(680px 300px at 12% 8%,rgba(34,211,238,.22),transparent 66%),
    radial-gradient(620px 300px at 92% 96%,rgba(168,85,247,.22),transparent 68%),
    linear-gradient(150deg,rgba(255,255,255,.09),rgba(255,255,255,.025));
  overflow:hidden;
  padding:52px 48px;
  display:grid;
  grid-template-columns:minmax(0,1.35fr) minmax(0,.65fr);
  gap:40px;
  align-items:center;
}
.cta-band h2{font-size:clamp(1.5rem,2.7vw,2.1rem);margin-bottom:14px;}
.cta-band p{color:var(--text-soft);font-size:1rem;max-width:56ch;}
.cta-actions{display:flex;flex-direction:column;gap:14px;}
.cta-actions .note{font-size:.83rem;color:var(--muted);text-align:center;}

/* ============ 页脚 ============ */
.site-footer{
  margin-top:20px;
  border-top:1px solid rgba(255,255,255,.08);
  background:linear-gradient(180deg,rgba(255,255,255,.022),rgba(5,8,16,.65));
  padding:70px 0 26px;
}
.footer-grid{
  display:grid;
  grid-template-columns:minmax(0,1.5fr) repeat(3,minmax(0,1fr));
  gap:44px;
  padding-bottom:44px;
  border-bottom:1px solid rgba(255,255,255,.08);
}
.footer-brand .brand{margin-bottom:18px;}
.footer-brand p{color:var(--muted);font-size:.92rem;max-width:44ch;}
.footer-social{display:flex;gap:11px;margin-top:22px;}
.footer-social a{
  width:42px;height:42px;
  display:grid;place-items:center;
  border-radius:12px;
  border:1px solid var(--border);
  background:rgba(255,255,255,.05);
  color:var(--text-soft);
  font-size:.94rem;
  transition:all .25s var(--ease);
}
.footer-social a:hover{
  color:#04121a;
  background:linear-gradient(135deg,var(--primary),var(--primary-2));
  border-color:transparent;
  transform:translateY(-3px);
}
.footer-col h4{font-size:.98rem;margin-bottom:18px;color:#fff;}
.footer-col ul{display:grid;gap:11px;}
.footer-col a{color:var(--muted);font-size:.91rem;}
.footer-col a:hover{color:var(--primary);}
.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;
  gap:16px;
  padding-top:24px;
  font-size:.85rem;
  color:var(--muted);
}
.fb-links{display:flex;flex-wrap:wrap;gap:20px;}
.fb-links a{color:var(--muted);}
.fb-links a:hover{color:var(--primary);}

/* ============ 响应式 ============ */
@media (max-width:1180px){
  .nav-search span{display:none;}
  .nav-search{padding:9px 12px;}
  .rank-row{grid-template-columns:56px minmax(0,1fr) 118px 96px;gap:14px;}
  .rank-progress{display:none;}
}
@media (max-width:1024px){
  .section{padding:70px 0;}
  .nav-menu{
    position:fixed;
    top:74px;left:0;right:0;
    flex-direction:column;
    align-items:stretch;
    gap:6px;
    padding:18px 24px 26px;
    background:rgba(7,11,20,.97);
    backdrop-filter:blur(18px);
    -webkit-backdrop-filter:blur(18px);
    border-bottom:1px solid rgba(255,255,255,.10);
    box-shadow:0 24px 50px rgba(2,8,24,.60);
    transform:translateY(-12px);
    opacity:0;
    pointer-events:none;
    transition:opacity .28s var(--ease),transform .28s var(--ease);
  }
  .nav-menu.is-open{opacity:1;transform:translateY(0);pointer-events:auto;}
  .nav-menu a{padding:13px 16px;border-radius:var(--radius-sm);font-size:.96rem;}
  .nav-menu a.active{color:#04121a;}
  .nav-toggle{display:grid;place-items:center;}
  .nav-actions .btn-sm{display:none;}
  .hero-grid{grid-template-columns:1fr;gap:36px;}
  .page-hero{padding:136px 0 64px;}
  .stat-strip{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;}
  .stat-item:nth-child(2){border-right:0;}
  .grid-4{grid-template-columns:repeat(2,minmax(0,1fr));}
  .flow{grid-template-columns:repeat(2,minmax(0,1fr));}
  .topic-layout{grid-template-columns:1fr;}
  .cta-band{grid-template-columns:1fr;padding:42px 32px;}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:34px;}
}
@media (max-width:768px){
  .container,.container-wide{padding:0 18px;}
  .section{padding:58px 0;}
  .grid-3,.grid-2{grid-template-columns:1fr;}
  .rank-row{
    grid-template-columns:44px minmax(0,1fr) 88px;
    padding:15px 18px;
    gap:12px;
  }
  .rank-row .rank-tag-cell{display:none;}
  .product-media{aspect-ratio:16/11;}
  .faq-list summary{padding:17px 18px;font-size:.96rem;}
  .faq-list .faq-body{padding:0 18px 18px;}
  .cta-band{padding:34px 22px;border-radius:var(--radius);}
  .hero-side{padding:22px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:520px){
  .brand-sub{display:none;}
  .brand-name{font-size:.95rem;}
  .nav-inner{gap:12px;min-height:68px;}
  .nav-menu{top:68px;}
  .page-hero{padding:122px 0 52px;}
  .page-hero h1{font-size:1.82rem;}
  .grid-4,.flow{grid-template-columns:1fr;}
  .stat-strip{grid-template-columns:1fr;padding:18px;}
  .stat-item{border-right:0;border-bottom:1px solid rgba(255,255,255,.08);padding-bottom:14px;}
  .stat-item:last-child{border-bottom:0;padding-bottom:0;}
  .hero-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;}
  .topic-item{padding:15px 14px;gap:12px;}
  .avatars span{width:32px;height:32px;font-size:.74rem;}
}