/* roulang page: index */
:root{
  --navy:#1a1f3d;
  --navy-deep:#0f1330;
  --navy-soft:#252c54;
  --gold:#ffb400;
  --gold-light:#ffd166;
  --gold-deep:#e08a00;
  --cyan:#35e0d0;
  --bg:#f4f6fb;
  --bg-alt:#eef1f9;
  --surface:#ffffff;
  --ink:#161a33;
  --ink-2:#4b5170;
  --ink-3:#8189a6;
  --line:#e1e6f2;
  --radius:12px;
  --radius-lg:20px;
  --radius-sm:8px;
  --shadow-sm:0 2px 10px rgba(20,26,60,.06);
  --shadow-md:0 12px 30px rgba(20,26,60,.10);
  --shadow-lg:0 26px 60px rgba(15,19,48,.20);
  --w:1160px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;}
button,input,select,textarea{font:inherit;color:inherit;}
h1,h2,h3,h4,h5,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
h1,h2,h3,h4{line-height:1.3;letter-spacing:.2px;}
:focus-visible{outline:3px solid rgba(255,180,0,.65);outline-offset:3px;border-radius:6px;}
.container{width:100%;max-width:var(--w);margin:0 auto;padding:0 24px;}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 22px;border-radius:999px;border:1px solid transparent;
  font-size:15px;font-weight:700;letter-spacing:.3px;cursor:pointer;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease,color .18s ease,border-color .18s ease;
  white-space:nowrap;
}
.btn-lg{padding:14px 30px;font-size:16px;}
.btn-block{width:100%;}
.btn-gold{
  background:linear-gradient(135deg,var(--gold-light) 0%,var(--gold) 55%,var(--gold-deep) 100%);
  color:#241a00;box-shadow:0 8px 22px rgba(255,180,0,.32);
}
.btn-gold:hover{transform:translateY(-2px);box-shadow:0 14px 30px rgba(255,180,0,.42);}
.btn-gold:active{transform:translateY(0);box-shadow:0 6px 16px rgba(255,180,0,.30);}
.btn-outline{background:transparent;color:#fff;border-color:rgba(255,255,255,.42);}
.btn-outline:hover{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.72);transform:translateY(-2px);}
.btn-ghost{background:rgba(255,255,255,.10);color:#fff;border-color:rgba(255,255,255,.16);}
.btn-ghost:hover{background:rgba(255,255,255,.20);}

/* 头部导航 */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(15,19,48,.94);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid rgba(255,255,255,.09);
}
.nav{display:flex;align-items:center;gap:22px;height:74px;position:relative;}
.brand{display:flex;align-items:center;gap:11px;color:#fff;font-weight:800;font-size:18px;letter-spacing:.6px;flex-shrink:0;}
.brand-mark{
  width:36px;height:36px;border-radius:11px;
  background:linear-gradient(135deg,var(--gold-light),var(--gold-deep));
  display:grid;place-items:center;color:#241a00;font-size:17px;font-weight:900;
  box-shadow:0 6px 16px rgba(255,180,0,.32);
}
.nav-links{display:flex;align-items:center;gap:4px;}
.nav-links a{
  color:rgba(255,255,255,.72);font-size:15px;font-weight:500;
  padding:9px 15px;border-radius:999px;transition:color .2s,background .2s;
}
.nav-links a:hover{color:#fff;background:rgba(255,255,255,.09);}
.nav-links a.active{
  color:#241a00;font-weight:700;
  background:linear-gradient(135deg,var(--gold-light),var(--gold));
  box-shadow:0 6px 16px rgba(255,180,0,.28);
}
.nav-actions{margin-left:auto;display:flex;align-items:center;gap:10px;}
.nav-toggle{
  display:none;margin-left:auto;width:42px;height:42px;border-radius:12px;
  background:rgba(255,255,255,.09);border:1px solid rgba(255,255,255,.14);
  flex-direction:column;justify-content:center;align-items:center;gap:5px;cursor:pointer;
}
.nav-toggle span{display:block;width:18px;height:2px;background:#fff;border-radius:2px;}

/* 板块基础 */
.section{padding:86px 0;}
.section-alt{background:var(--bg-alt);}
.section-dark{background:var(--navy-deep);color:#fff;}
.section-head{max-width:760px;margin-bottom:46px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.eyebrow{
  display:inline-block;font-size:13px;font-weight:800;letter-spacing:2px;
  color:var(--gold-deep);background:rgba(255,180,0,.14);
  padding:5px 14px;border-radius:999px;margin-bottom:16px;
}
.eyebrow.on-dark{color:var(--gold-light);background:rgba(255,180,0,.16);}
.section-head h2{font-size:32px;color:var(--navy);font-weight:800;}
.section-dark .section-head h2{color:#fff;}
.section-head p{margin-top:14px;font-size:16px;color:var(--ink-2);line-height:1.85;}
.section-dark .section-head p{color:rgba(255,255,255,.72);}

/* Hero */
.hero{
  position:relative;color:#fff;overflow:hidden;
  padding:78px 0 92px;
  background:
    linear-gradient(118deg,rgba(15,19,48,.96) 0%,rgba(26,31,61,.90) 52%,rgba(37,44,84,.82) 100%),
    url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
}
.hero::after{
  content:"";position:absolute;inset:auto -10% -40% -10%;height:340px;
  background:radial-gradient(60% 100% at 50% 100%,rgba(255,180,0,.16),transparent 70%);
  pointer-events:none;
}
.hero-grid{
  position:relative;z-index:2;
  display:grid;grid-template-columns:minmax(0,1.32fr) minmax(0,1fr);
  gap:56px;align-items:center;
}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;letter-spacing:1.4px;
  color:var(--gold-light);background:rgba(255,180,0,.14);
  border:1px solid rgba(255,180,0,.34);
  padding:6px 16px;border-radius:999px;margin-bottom:22px;
}
.hero-badge::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--gold);box-shadow:0 0 10px var(--gold);}
.hero h1{
  font-size:44px;line-height:1.24;font-weight:900;letter-spacing:.5px;
  background:linear-gradient(120deg,#ffffff 0%,#ffffff 55%,var(--gold-light) 100%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-lead{
  margin-top:22px;font-size:16.5px;line-height:1.95;color:rgba(255,255,255,.78);max-width:640px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px;}
.hero-stats{display:flex;flex-wrap:wrap;gap:34px;margin-top:42px;padding-top:28px;border-top:1px solid rgba(255,255,255,.14);}
.hero-stats li{display:flex;flex-direction:column;gap:2px;}
.hero-stats strong{font-size:26px;font-weight:900;color:var(--gold-light);line-height:1.2;}
.hero-stats span{font-size:13.5px;color:rgba(255,255,255,.62);}

/* 等级面板 */
.rank-card{
  background:linear-gradient(180deg,rgba(255,255,255,.10) 0%,rgba(255,255,255,.04) 100%);
  border:1px solid rgba(255,255,255,.16);
  border-radius:var(--radius-lg);
  padding:26px 24px 24px;
  box-shadow:var(--shadow-lg);
  backdrop-filter:blur(10px);
}
.rank-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px;}
.rank-title{font-size:17px;font-weight:800;letter-spacing:1px;color:#fff;}
.rank-tag{
  font-size:12px;font-weight:700;letter-spacing:1px;color:#241a00;
  background:linear-gradient(135deg,var(--gold-light),var(--gold));
  padding:4px 12px;border-radius:999px;
}
.rank-list{display:flex;flex-direction:column;gap:10px;}
.rank-item{
  display:flex;align-items:center;gap:12px;
  padding:11px 13px;border-radius:var(--radius);
  background:rgba(255,255,255,.05);
  border:1px solid rgba(255,255,255,.07);
  transition:background .2s,border-color .2s,transform .2s;
}
.rank-item b{display:block;font-size:14.5px;font-weight:700;color:#fff;}
.rank-item small{display:block;font-size:12.5px;color:rgba(255,255,255,.58);line-height:1.5;}
.rank-badge{
  width:32px;height:32px;flex-shrink:0;border-radius:10px;
  display:grid;place-items:center;font-size:13px;font-weight:800;
  background:rgba(255,255,255,.12);color:rgba(255,255,255,.8);
}
.rank-item.is-done .rank-badge{background:rgba(53,224,208,.20);color:var(--cyan);}
.rank-item.is-active{
  background:linear-gradient(120deg,rgba(255,180,0,.20),rgba(255,180,0,.06));
  border-color:rgba(255,180,0,.46);
}
.rank-item.is-active .rank-badge{background:linear-gradient(135deg,var(--gold-light),var(--gold));color:#241a00;}
.rank-item.is-active b{color:var(--gold-light);}
.rank-progress{margin:20px 0 12px;height:8px;border-radius:999px;background:rgba(255,255,255,.13);overflow:hidden;}
.rank-progress span{display:block;height:100%;width:68%;border-radius:999px;background:linear-gradient(90deg,var(--gold),var(--gold-light));}
.rank-note{font-size:13px;color:rgba(255,255,255,.62);margin-bottom:18px;line-height:1.7;}

/* 数据速览 */
.stat-row{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;}
.stat-item{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:28px 24px;box-shadow:var(--shadow-sm);
  transition:transform .2s,box-shadow .2s,border-color .2s;
}
.stat-item:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:rgba(255,180,0,.42);}
.stat-num{display:block;font-size:32px;font-weight:900;color:var(--navy);line-height:1.15;letter-spacing:.5px;}
.stat-num em{font-style:normal;color:var(--gold-deep);}
.stat-item p{margin-top:10px;font-size:14.5px;color:var(--ink-2);line-height:1.7;}

/* 资料目录 */
.index-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px;}
.index-item{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:24px 22px;box-shadow:var(--shadow-sm);position:relative;overflow:hidden;
  transition:transform .2s,box-shadow .2s,border-color .2s;
}
.index-item::before{
  content:"";position:absolute;left:0;top:0;width:3px;height:0;
  background:linear-gradient(180deg,var(--gold),var(--gold-deep));transition:height .28s ease;
}
.index-item:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:rgba(255,180,0,.38);}
.index-item:hover::before{height:100%;}
.index-num{font-size:13px;font-weight:800;letter-spacing:2px;color:var(--gold-deep);}
.index-item h3{margin:9px 0 9px;font-size:17px;font-weight:800;color:var(--navy);}
.index-item p{font-size:14px;color:var(--ink-2);line-height:1.72;}

/* 价值卡片 */
.value-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;}
.value-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:30px 26px;box-shadow:var(--shadow-sm);
  transition:transform .22s,box-shadow .22s,border-color .22s;
}
.value-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-md);border-color:rgba(255,180,0,.4);}
.value-icon{
  width:46px;height:46px;border-radius:14px;display:grid;place-items:center;
  background:linear-gradient(135deg,rgba(255,180,0,.20),rgba(255,180,0,.06));
  color:var(--gold-deep);font-size:19px;font-weight:900;margin-bottom:18px;
}
.value-card h3{font-size:18px;font-weight:800;color:var(--navy);margin-bottom:10px;}
.value-card p{font-size:14.5px;color:var(--ink-2);line-height:1.78;}

/* 流程步骤 */
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;counter-reset:step;}
.step{
  position:relative;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-lg);padding:30px 24px 26px;box-shadow:var(--shadow-sm);
  transition:transform .2s,box-shadow .2s;
}
.step:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);}
.step::before{
  counter-increment:step;content:counter(step,decimal-leading-zero);
  display:inline-block;font-size:13px;font-weight:900;letter-spacing:2px;
  color:#241a00;background:linear-gradient(135deg,var(--gold-light),var(--gold));
  padding:4px 11px;border-radius:999px;margin-bottom:16px;
}
.step h3{font-size:17px;font-weight:800;color:var(--navy);margin-bottom:10px;}
.step p{font-size:14.5px;color:var(--ink-2);line-height:1.76;}

/* 图表 */
.chart-wrap{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:38px 36px;box-shadow:var(--shadow-sm);
}
.chart-bar-row{display:grid;grid-template-columns:190px 1fr 70px;align-items:center;gap:18px;padding:13px 0;}
.chart-label{font-size:14.5px;font-weight:600;color:var(--ink);}
.chart-track{height:14px;border-radius:999px;background:var(--bg-alt);overflow:hidden;}
.chart-bar{
  display:block;height:100%;border-radius:999px;
  background:linear-gradient(90deg,var(--navy-soft),var(--navy));
  transition:filter .2s;
}
.chart-bar.gold{background:linear-gradient(90deg,var(--gold),var(--gold-light));}
.chart-bar.cyan{background:linear-gradient(90deg,#1f9f96,var(--cyan));}
.chart-value{font-size:14.5px;font-weight:800;color:var(--navy);text-align:right;}
.chart-foot{margin-top:22px;padding-top:20px;border-top:1px dashed var(--line);font-size:14px;color:var(--ink-3);line-height:1.8;}

/* 标签云 */
.tag-cloud{display:flex;flex-wrap:wrap;gap:12px;}
.tag-pill{
  display:inline-flex;align-items:center;gap:8px;
  padding:10px 20px;border-radius:999px;font-size:14.5px;font-weight:600;
  background:var(--surface);border:1px solid var(--line);color:var(--ink-2);
  box-shadow:var(--shadow-sm);transition:all .2s;
}
.tag-pill:hover{color:#241a00;background:linear-gradient(135deg,var(--gold-light),var(--gold));border-color:transparent;transform:translateY(-2px);box-shadow:0 10px 22px rgba(255,180,0,.3);}
.tag-pill span{font-size:12px;color:var(--ink-3);font-weight:600;}
.tag-pill:hover span{color:rgba(36,26,0,.7);}

/* 案例墙 */
.case-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.case-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
  overflow:hidden;box-shadow:var(--shadow-sm);transition:transform .22s,box-shadow .22s;
}
.case-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-md);}
.case-thumb{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--navy);}
.case-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease;}
.case-card:hover .case-thumb img{transform:scale(1.06);}
.case-tag{
  position:absolute;left:14px;top:14px;
  font-size:12px;font-weight:700;letter-spacing:.6px;color:#241a00;
  background:linear-gradient(135deg,var(--gold-light),var(--gold));
  padding:4px 12px;border-radius:999px;
}
.case-body{padding:24px 24px 26px;}
.case-body h3{font-size:17.5px;font-weight:800;color:var(--navy);margin-bottom:10px;}
.case-body p{font-size:14.5px;color:var(--ink-2);line-height:1.78;}

/* 资源列表 */
.res-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;}
.res-item{
  display:flex;align-items:flex-start;gap:16px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:22px 24px;box-shadow:var(--shadow-sm);transition:transform .2s,box-shadow .2s,border-color .2s;
}
.res-item:hover{transform:translateX(4px);box-shadow:var(--shadow-md);border-color:rgba(255,180,0,.4);}
.res-dot{
  width:10px;height:10px;flex-shrink:0;margin-top:9px;border-radius:50%;
  background:linear-gradient(135deg,var(--gold),var(--gold-deep));
  box-shadow:0 0 0 4px rgba(255,180,0,.14);
}
.res-item h3{font-size:16.5px;font-weight:800;color:var(--navy);margin-bottom:6px;}
.res-item p{font-size:14px;color:var(--ink-2);line-height:1.72;}

/* 阶段对照 */
.stage-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;}
.stage-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:32px 28px;box-shadow:var(--shadow-sm);position:relative;
  transition:transform .22s,box-shadow .22s,border-color .22s;
}
.stage-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-md);}
.stage-card.is-featured{border-color:rgba(255,180,0,.6);box-shadow:0 18px 40px rgba(255,180,0,.18);}
.stage-card.is-featured::after{
  content:"当前推荐";position:absolute;right:22px;top:-13px;
  font-size:12px;font-weight:800;letter-spacing:1px;color:#241a00;
  background:linear-gradient(135deg,var(--gold-light),var(--gold));
  padding:4px 14px;border-radius:999px;
}
.stage-name{font-size:13px;font-weight:800;letter-spacing:2px;color:var(--gold-deep);}
.stage-card h3{font-size:21px;font-weight:900;color:var(--navy);margin:10px 0 8px;}
.stage-card > p{font-size:14.5px;color:var(--ink-2);line-height:1.76;margin-bottom:18px;}
.stage-list{display:flex;flex-direction:column;gap:10px;}
.stage-list li{
  position:relative;padding-left:22px;font-size:14px;color:var(--ink-2);line-height:1.7;
}
.stage-list li::before{
  content:"";position:absolute;left:0;top:9px;width:8px;height:8px;border-radius:2px;
  background:linear-gradient(135deg,var(--gold),var(--gold-deep));transform:rotate(45deg);
}

/* 竖卡内容流 */
.rail{display:grid;grid-auto-flow:column;grid-auto-columns:minmax(230px,1fr);gap:18px;overflow-x:auto;padding-bottom:14px;scroll-snap-type:x mandatory;}
.rail::-webkit-scrollbar{height:8px;}
.rail::-webkit-scrollbar-thumb{background:rgba(26,31,61,.22);border-radius:999px;}
.rail-card{
  scroll-snap-align:start;position:relative;border-radius:var(--radius-lg);overflow:hidden;
  background:var(--navy);box-shadow:var(--shadow-md);min-height:330px;display:flex;flex-direction:column;justify-content:flex-end;
  transition:transform .22s;
}
.rail-card:hover{transform:translateY(-5px);}
.rail-card img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.72;transition:transform .5s,opacity .3s;}
.rail-card:hover img{transform:scale(1.07);opacity:.82;}
.rail-card::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(15,19,48,.05) 0%,rgba(15,19,48,.72) 62%,rgba(15,19,48,.94) 100%);
}
.rail-body{position:relative;z-index:2;padding:22px 20px 24px;color:#fff;}
.rail-body span{display:inline-block;font-size:11.5px;font-weight:800;letter-spacing:1px;color:var(--gold-light);border:1px solid rgba(255,180,0,.5);padding:3px 10px;border-radius:999px;margin-bottom:10px;}
.rail-body h3{font-size:16.5px;font-weight:800;line-height:1.5;}
.rail-body p{margin-top:8px;font-size:13px;color:rgba(255,255,255,.72);line-height:1.65;}

/* 资讯列表 */
.news-layout{display:grid;grid-template-columns:minmax(0,1fr) 330px;gap:30px;align-items:start;}
.news-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;}
.news-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:26px 26px 22px;box-shadow:var(--shadow-sm);
  transition:transform .2s,box-shadow .2s,border-color .2s;
  display:flex;flex-direction:column;
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:rgba(255,180,0,.38);}
.news-card h3{font-size:16.5px;font-weight:800;color:var(--navy);line-height:1.6;transition:color .2s;}
.news-card:hover h3{color:var(--gold-deep);}
.news-card p{margin-top:12px;font-size:14px;color:var(--ink-2);line-height:1.76;flex:1;}
.news-meta{display:flex;align-items:center;gap:12px;margin-top:16px;padding-top:14px;border-top:1px dashed var(--line);}
.news-meta .tag{
  font-size:12px;font-weight:700;color:var(--navy);
  background:rgba(26,31,61,.08);padding:3px 11px;border-radius:999px;
}
.news-meta time{font-size:12.5px;color:var(--ink-3);margin-left:auto;}
.news-side{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:28px 26px;box-shadow:var(--shadow-sm);position:sticky;top:96px;
}
.side-title{font-size:16px;font-weight:800;color:var(--navy);padding-bottom:14px;border-bottom:2px solid var(--gold);margin-bottom:16px;}
.side-list{display:flex;flex-direction:column;gap:2px;}
.side-list li a{
  display:block;padding:12px 0;font-size:14.5px;color:var(--ink-2);line-height:1.65;
  border-bottom:1px dashed var(--line);transition:color .2s,padding-left .2s;
}
.side-list li:last-child a{border-bottom:0;}
.side-list li a:hover{color:var(--gold-deep);padding-left:6px;}
.empty-state{
  font-size:14.5px;color:var(--ink-3);padding:26px;text-align:center;
  border:1px dashed var(--line);border-radius:var(--radius);background:var(--surface);
}

/* 口碑 */
.quote-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;}
.quote-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:30px 28px;box-shadow:var(--shadow-sm);position:relative;
  transition:transform .2s,box-shadow .2s;
}
.quote-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);}
.quote-card::before{
  content:"”";position:absolute;right:24px;top:6px;font-size:64px;line-height:1;
  color:rgba(255,180,0,.22);font-family:Georgia,serif;
}
.quote-card p{font-size:15px;color:var(--ink-2);line-height:1.85;position:relative;z-index:1;}
.quote-user{display:flex;align-items:center;gap:12px;margin-top:20px;padding-top:18px;border-top:1px dashed var(--line);}
.quote-avatar{
  width:38px;height:38px;border-radius:50%;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--navy-soft),var(--navy));color:var(--gold-light);
  font-size:14px;font-weight:800;flex-shrink:0;
}
.quote-user b{display:block;font-size:14.5px;color:var(--navy);}
.quote-user small{display:block;font-size:12.5px;color:var(--ink-3);}

/* 保障条 */
.guard-row{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px;}
.guard-item{
  display:flex;align-items:flex-start;gap:14px;
  background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.12);
  border-radius:var(--radius);padding:22px 20px;transition:background .2s,border-color .2s;
}
.section-dark .guard-item:hover{background:rgba(255,255,255,.09);border-color:rgba(255,180,0,.42);}
.guard-ico{
  width:38px;height:38px;flex-shrink:0;border-radius:11px;display:grid;place-items:center;
  background:rgba(255,180,0,.16);color:var(--gold-light);font-size:16px;font-weight:900;
}
.guard-item h3{font-size:15px;font-weight:800;color:#fff;margin-bottom:6px;}
.guard-item p{font-size:13.5px;color:rgba(255,255,255,.66);line-height:1.7;}

/* 订阅表单 */
.subscribe{
  position:relative;color:#fff;overflow:hidden;
  background:
    linear-gradient(120deg,rgba(15,19,48,.95),rgba(26,31,61,.88)),
    url('/assets/images/backpic/back-4.webp') center/cover no-repeat;
}
.subscribe-grid{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,1fr);gap:50px;align-items:center;}
.subscribe-copy h2{font-size:32px;font-weight:900;color:#fff;line-height:1.32;}
.subscribe-copy p{margin-top:16px;font-size:15.5px;color:rgba(255,255,255,.74);line-height:1.9;max-width:520px;}
.subscribe-points{display:flex;flex-direction:column;gap:12px;margin-top:26px;}
.subscribe-points li{
  position:relative;padding-left:26px;font-size:14.5px;color:rgba(255,255,255,.78);line-height:1.7;
}
.subscribe-points li::before{
  content:"";position:absolute;left:0;top:8px;width:14px;height:8px;
  border-left:2px solid var(--gold);border-bottom:2px solid var(--gold);
  transform:rotate(-45deg);border-radius:1px;
}
.signup-form{
  background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.16);
  border-radius:var(--radius-lg);padding:32px 30px 28px;box-shadow:var(--shadow-lg);
  backdrop-filter:blur(10px);
}
.field{margin-bottom:18px;}
.field label{display:block;font-size:13.5px;font-weight:700;color:rgba(255,255,255,.82);margin-bottom:8px;letter-spacing:.4px;}
.field input,.field select{
  width:100%;padding:12px 16px;border-radius:var(--radius);
  background:rgba(255,255,255,.96);border:1px solid transparent;color:var(--ink);
  font-size:15px;transition:border-color .2s,box-shadow .2s;
}
.field input::placeholder{color:var(--ink-3);}
.field input:focus,.field select:focus{outline:none;border-color:var(--gold);box-shadow:0 0 0 4px rgba(255,180,0,.22);}
.form-note{margin-top:14px;font-size:12.5px;color:rgba(255,255,255,.58);line-height:1.7;}

/* 页脚 */
.site-footer{background:var(--navy-deep);color:rgba(255,255,255,.7);padding:64px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:38px;padding-bottom:48px;}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand p{font-size:14px;color:rgba(255,255,255,.6);line-height:1.85;max-width:320px;}
.footer-col h4{font-size:15px;font-weight:800;color:#fff;margin-bottom:16px;letter-spacing:.5px;}
.footer-col ul{display:flex;flex-direction:column;gap:11px;}
.footer-col ul li{font-size:14px;color:rgba(255,255,255,.6);line-height:1.7;}
.footer-col ul li a{transition:color .2s;}
.footer-col ul li a:hover{color:var(--gold-light);}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding:22px 0;}
.footer-bottom-inner{display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;}
.footer-bottom p{font-size:13px;color:rgba(255,255,255,.48);}

/* 响应式 */
@media (max-width:1024px){
  .hero{padding:64px 0 76px;}
  .hero-grid{grid-template-columns:1fr;gap:40px;}
  .hero h1{font-size:36px;}
  .index-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .value-grid,.case-grid,.stage-grid,.quote-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .steps,.stat-row,.guard-row{grid-template-columns:repeat(2,minmax(0,1fr));}
  .news-layout{grid-template-columns:1fr;}
  .news-side{position:static;}
  .subscribe-grid{grid-template-columns:1fr;gap:36px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .section{padding:68px 0;}
}
@media (max-width:900px){
  .nav-links{
    position:absolute;left:0;right:0;top:74px;
    flex-direction:column;align-items:stretch;gap:4px;
    background:rgba(15,19,48,.99);padding:14px 20px 20px;display:none;
    border-bottom:1px solid rgba(255,255,255,.1);box-shadow:var(--shadow-lg);
  }
  .nav-links.is-open{display:flex;}
  .nav-links a{padding:12px 16px;}
  .nav-actions .btn-ghost{display:none;}
  .nav-toggle{display:flex;}
}
@media (max-width:768px){
  .section-head h2,.subscribe-copy h2{font-size:26px;}
  .hero h1{font-size:30px;}
  .hero-lead{font-size:15.5px;}
  .hero-stats{gap:24px;}
  .hero-stats strong{font-size:22px;}
  .chart-bar-row{grid-template-columns:1fr 62px;gap:10px 14px;}
  .chart-label{grid-column:1 / -1;}
  .res-list{grid-template-columns:1fr;}
  .news-grid{grid-template-columns:1fr;}
  .rank-card{padding:22px 20px;}
}
@media (max-width:560px){
  .container{padding:0 18px;}
  .nav{height:66px;gap:12px;}
  .brand{font-size:16px;}
  .brand-mark{width:32px;height:32px;font-size:15px;}
  .nav-links{top:66px;}
  .nav-actions{display:none;}
  .section{padding:54px 0;}
  .hero{padding:48px 0 58px;}
  .hero h1{font-size:25px;line-height:1.32;}
  .hero-actions{flex-direction:column;align-items:stretch;}
  .hero-actions .btn{width:100%;}
  .index-grid,.value-grid,.case-grid,.stage-grid,.quote-grid,.steps,.stat-row,.guard-row,.footer-grid{grid-template-columns:1fr;}
  .stat-item{padding:22px 20px;}
  .chart-wrap{padding:26px 20px;}
  .signup-form{padding:24px 20px;}
  .section-head{margin-bottom:32px;}
  .section-head h2,.subscribe-copy h2{font-size:23px;}
  .footer-bottom-inner{flex-direction:column;align-items:flex-start;}
}

/* roulang page: article */
:root{
  --navy:#1a1f3d;
  --navy-deep:#0f1330;
  --navy-soft:#252c54;
  --gold:#ffb400;
  --gold-light:#ffd166;
  --gold-deep:#e08a00;
  --cyan:#35e0d0;
  --bg:#f4f6fb;
  --bg-alt:#eef1f9;
  --surface:#ffffff;
  --ink:#161a33;
  --ink-2:#4b5170;
  --ink-3:#8189a6;
  --line:#e1e6f2;
  --radius:12px;
  --radius-lg:20px;
  --radius-sm:8px;
  --shadow-sm:0 2px 10px rgba(20,26,60,.06);
  --shadow-md:0 12px 30px rgba(20,26,60,.10);
  --shadow-lg:0 26px 60px rgba(15,19,48,.20);
  --w:1160px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Helvetica Neue",Arial,sans-serif;
  font-size:16px;line-height:1.75;color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,figure,blockquote{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;transition:color .2s ease,opacity .2s ease;}
button,input,select,textarea{font:inherit;color:inherit;}
button{cursor:pointer;}
:focus-visible{outline:3px solid rgba(255,180,0,.65);outline-offset:3px;border-radius:4px;}
.container{width:100%;max-width:var(--w);margin:0 auto;padding:0 24px;}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0;}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 22px;border-radius:999px;border:1px solid transparent;
  font-size:15px;font-weight:700;letter-spacing:.3px;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease,color .18s ease,border-color .18s ease;
  white-space:nowrap;
}
.btn-lg{padding:14px 30px;font-size:16px;}
.btn-gold{
  background:linear-gradient(135deg,var(--gold-light) 0%,var(--gold) 55%,var(--gold-deep) 100%);
  color:#241a00;box-shadow:0 8px 22px rgba(255,180,0,.32);
}
.btn-gold:hover{transform:translateY(-2px);box-shadow:0 14px 30px rgba(255,180,0,.42);}
.btn-gold:active{transform:translateY(0);box-shadow:0 6px 16px rgba(255,180,0,.30);}
.btn-outline{background:transparent;color:#fff;border-color:rgba(255,255,255,.42);}
.btn-outline:hover{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.72);transform:translateY(-2px);}
.btn-ghost{background:rgba(255,255,255,.10);color:#fff;border-color:rgba(255,255,255,.16);}
.btn-ghost:hover{background:rgba(255,255,255,.20);}
.btn-dark{background:var(--navy);color:#fff;box-shadow:var(--shadow-sm);}
.btn-dark:hover{background:var(--navy-soft);transform:translateY(-2px);box-shadow:var(--shadow-md);}
.btn-line{background:var(--surface);color:var(--navy);border-color:var(--line);box-shadow:var(--shadow-sm);}
.btn-line:hover{border-color:var(--gold);color:var(--gold-deep);transform:translateY(-2px);}

/* 头部导航 */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(15,19,48,.94);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid rgba(255,255,255,.09);
}
.nav{display:flex;align-items:center;gap:22px;height:74px;position:relative;}
.brand{display:flex;align-items:center;gap:11px;color:#fff;font-weight:800;font-size:18px;letter-spacing:.6px;flex-shrink:0;}
.brand-mark{
  width:36px;height:36px;border-radius:11px;
  background:linear-gradient(135deg,var(--gold-light),var(--gold-deep));
  display:grid;place-items:center;color:#241a00;font-size:17px;font-weight:900;
  box-shadow:0 6px 16px rgba(255,180,0,.32);
}
.brand-text{white-space:nowrap;}
.nav-links{display:flex;align-items:center;gap:4px;}
.nav-links a{
  color:rgba(255,255,255,.72);font-size:15px;font-weight:500;
  padding:9px 15px;border-radius:999px;transition:color .2s,background .2s;
}
.nav-links a:hover{color:#fff;background:rgba(255,255,255,.09);}
.nav-links a.active{
  color:#241a00;font-weight:700;
  background:linear-gradient(135deg,var(--gold-light),var(--gold));
  box-shadow:0 6px 16px rgba(255,180,0,.28);
}
.nav-actions{margin-left:auto;display:flex;align-items:center;gap:10px;}
.nav-toggle{
  display:none;margin-left:auto;width:42px;height:42px;border-radius:12px;
  background:rgba(255,255,255,.09);border:1px solid rgba(255,255,255,.14);
  flex-direction:column;justify-content:center;align-items:center;gap:5px;
}
.nav-toggle span{display:block;width:18px;height:2px;background:#fff;border-radius:2px;transition:transform .2s ease,opacity .2s ease;}

/* 通用板块 */
.section{padding:82px 0;}
.section-alt{background:var(--bg-alt);}
.section-dark{background:var(--navy-deep);color:#fff;}
.section-head{max-width:760px;margin-bottom:42px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.section-head h2{font-size:30px;font-weight:800;color:var(--navy);line-height:1.35;}
.section-dark .section-head h2{color:#fff;}
.section-head p{margin-top:14px;font-size:16px;color:var(--ink-2);line-height:1.85;}
.section-dark .section-head p{color:rgba(255,255,255,.72);}
.eyebrow{
  display:inline-block;font-size:13px;font-weight:800;letter-spacing:2px;
  color:var(--gold-deep);background:rgba(255,180,0,.14);
  padding:5px 14px;border-radius:999px;margin-bottom:16px;
}
.eyebrow.on-dark{color:var(--gold-light);background:rgba(255,180,0,.16);}

/* 文章头 */
.article-hero{
  position:relative;color:#fff;overflow:hidden;
  padding:52px 0 68px;
  background:
    linear-gradient(118deg,rgba(15,19,48,.96) 0%,rgba(26,31,61,.92) 55%,rgba(37,44,84,.84) 100%),
    url('/assets/images/backpic/back-3.gif') center/cover no-repeat;
}
.article-hero::after{
  content:"";position:absolute;inset:auto -10% -45% -10%;height:320px;
  background:radial-gradient(60% 100% at 50% 100%,rgba(255,180,0,.18),transparent 70%);
  pointer-events:none;
}
.article-hero .container{position:relative;z-index:2;}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:rgba(255,255,255,.6);margin-bottom:22px;}
.crumbs a{color:rgba(255,255,255,.78);}
.crumbs a:hover{color:var(--gold-light);}
.crumbs span{color:rgba(255,255,255,.34);}
.article-hero h1{
  font-size:38px;line-height:1.32;font-weight:900;letter-spacing:.4px;max-width:900px;
  background:linear-gradient(120deg,#ffffff 0%,#ffffff 58%,var(--gold-light) 100%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.article-lead{margin-top:20px;max-width:780px;font-size:16px;line-height:1.95;color:rgba(255,255,255,.76);}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-top:26px;}
.chip{
  display:inline-flex;align-items:center;gap:7px;
  font-size:13px;font-weight:700;letter-spacing:.6px;
  padding:6px 15px;border-radius:999px;
  color:var(--gold-light);background:rgba(255,180,0,.14);
  border:1px solid rgba(255,180,0,.34);
}
.chip-plain{
  display:inline-flex;align-items:center;gap:7px;
  font-size:13px;padding:6px 15px;border-radius:999px;
  color:rgba(255,255,255,.72);background:rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.14);
}

/* 正文布局 */
.article-wrap{padding:64px 0 30px;background:var(--bg);}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:40px;align-items:start;}
.post-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
  box-shadow:var(--shadow-md);overflow:hidden;
}
.post-cover{width:100%;height:auto;object-fit:cover;max-height:420px;}
.post-inner{padding:38px 42px 46px;}
.article-body{font-size:16.5px;line-height:2;color:#242a45;}
.article-body h2{
  font-size:24px;font-weight:800;color:var(--navy);line-height:1.45;
  margin:38px 0 16px;padding-left:14px;border-left:4px solid var(--gold);border-radius:2px;
}
.article-body h3{font-size:19px;font-weight:800;color:var(--navy-soft);margin:28px 0 12px;}
.article-body h4{font-size:17px;font-weight:700;color:var(--ink);margin:22px 0 10px;}
.article-body p{margin:0 0 18px;}
.article-body ul,.article-body ol{margin:0 0 20px;padding-left:0;}
.article-body ul li,.article-body ol li{
  position:relative;padding-left:22px;margin-bottom:10px;color:var(--ink-2);line-height:1.95;
}
.article-body ul li::before{
  content:"";position:absolute;left:2px;top:13px;width:8px;height:8px;border-radius:3px;
  background:linear-gradient(135deg,var(--gold-light),var(--gold-deep));
}
.article-body ol{counter-reset:num;}
.article-body ol li{counter-increment:num;}
.article-body ol li::before{
  content:counter(num);position:absolute;left:0;top:4px;
  width:20px;height:20px;border-radius:6px;background:rgba(255,180,0,.16);
  color:var(--gold-deep);font-size:12px;font-weight:800;display:grid;place-items:center;
}
.article-body strong{color:var(--navy);font-weight:800;}
.article-body a{color:var(--gold-deep);border-bottom:1px solid rgba(224,138,0,.35);}
.article-body a:hover{color:var(--navy);border-bottom-color:var(--navy);}
.article-body blockquote{
  margin:24px 0;padding:18px 22px;border-left:4px solid var(--gold);
  background:linear-gradient(90deg,rgba(255,180,0,.10),rgba(255,180,0,.02));
  border-radius:0 var(--radius) var(--radius) 0;color:var(--ink-2);font-size:15.5px;
}
.article-body img{border-radius:var(--radius);margin:22px 0;box-shadow:var(--shadow-sm);}
.article-body table{width:100%;border-collapse:collapse;margin:22px 0;font-size:15px;}
.article-body th,.article-body td{padding:12px 14px;border-bottom:1px solid var(--line);text-align:left;}
.article-body th{background:var(--bg-alt);color:var(--navy);font-weight:800;}
.article-body hr{border:0;height:1px;background:var(--line);margin:32px 0;}
.empty-box{
  padding:56px 28px;text-align:center;background:var(--surface);
  border:1px dashed var(--line);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);
}
.empty-box h2{font-size:22px;color:var(--navy);margin-bottom:12px;}
.empty-box p{color:var(--ink-2);margin-bottom:24px;}

/* 侧栏 */
.side-stack{display:flex;flex-direction:column;gap:22px;position:sticky;top:96px;}
.side-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:24px;box-shadow:var(--shadow-sm);
}
.side-card h3{font-size:16px;font-weight:800;color:var(--navy);margin-bottom:14px;}
.side-card ul li{padding:10px 0;border-bottom:1px dashed var(--line);font-size:14.5px;color:var(--ink-2);}
.side-card ul li:last-child{border-bottom:0;padding-bottom:0;}
.side-card ul li a:hover{color:var(--gold-deep);}
.side-card.dark{
  background:linear-gradient(160deg,var(--navy) 0%,var(--navy-deep) 100%);
  border-color:rgba(255,255,255,.10);color:#fff;
}
.side-card.dark h3{color:#fff;}
.side-card.dark p{font-size:14.5px;line-height:1.85;color:rgba(255,255,255,.72);margin-bottom:18px;}
.side-num{display:flex;justify-content:space-between;align-items:baseline;font-size:14px;padding:9px 0;border-bottom:1px solid rgba(255,255,255,.12);color:rgba(255,255,255,.72);}
.side-num:last-of-type{border-bottom:0;}
.side-num b{font-size:17px;color:var(--gold-light);font-weight:900;}

/* 要点速览 */
.takeaways{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);padding:34px 38px;box-shadow:var(--shadow-sm);}
.takeaways h2{font-size:22px;font-weight:800;color:var(--navy);margin-bottom:20px;}
.take-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;}
.take-item{
  display:flex;gap:14px;padding:18px 20px;border-radius:var(--radius);
  background:var(--bg-alt);border:1px solid var(--line);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.take-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:rgba(255,180,0,.5);}
.take-num{
  flex-shrink:0;width:30px;height:30px;border-radius:9px;
  background:linear-gradient(135deg,var(--gold-light),var(--gold-deep));
  color:#241a00;font-size:14px;font-weight:900;display:grid;place-items:center;
}
.take-item h4{font-size:15.5px;font-weight:800;color:var(--navy);margin-bottom:4px;}
.take-item p{font-size:14px;line-height:1.8;color:var(--ink-2);}

/* 倍率面板 */
.chart-panel{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:34px 38px;box-shadow:var(--shadow-md);
}
.chart-rows{margin-top:8px;}
.chart-row{display:grid;grid-template-columns:120px 1fr 84px;gap:16px;align-items:center;padding:13px 0;border-bottom:1px dashed var(--line);}
.chart-row:last-child{border-bottom:0;}
.chart-row span{font-size:14.5px;color:var(--ink-2);font-weight:600;}
.bar{height:10px;border-radius:999px;background:var(--bg-alt);overflow:hidden;}
.bar i{display:block;height:100%;border-radius:999px;background:linear-gradient(90deg,var(--gold-light),var(--gold-deep));}
.chart-row b{font-size:15px;font-weight:900;color:var(--navy);text-align:right;}

/* 阶段卡片 */
.stage-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;}
.stage-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:26px 24px;box-shadow:var(--shadow-sm);position:relative;overflow:hidden;
  transition:transform .2s ease,box-shadow .2s ease;
}
.stage-card::before{content:"";position:absolute;left:0;top:0;width:100%;height:3px;background:linear-gradient(90deg,var(--gold),var(--cyan));}
.stage-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);}
.stage-card h3{font-size:18px;font-weight:800;color:var(--navy);margin-bottom:10px;}
.stage-card p{font-size:14.5px;line-height:1.85;color:var(--ink-2);}
.stage-tag{
  display:inline-block;font-size:12px;font-weight:800;letter-spacing:1px;
  color:var(--gold-deep);background:rgba(255,180,0,.14);
  padding:3px 11px;border-radius:999px;margin-bottom:12px;
}

/* 频道矩阵 */
.channel-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;}
.channel-card{
  display:block;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:28px 26px;box-shadow:var(--shadow-sm);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.channel-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-md);border-color:rgba(255,180,0,.55);}
.channel-card h3{font-size:18px;font-weight:800;color:var(--navy);margin-bottom:8px;}
.channel-card p{font-size:14.5px;line-height:1.85;color:var(--ink-2);margin-bottom:16px;}
.channel-more{font-size:14px;font-weight:800;color:var(--gold-deep);}
.channel-card:hover .channel-more{color:var(--navy);}

/* FAQ */
.faq-list{display:grid;gap:14px;max-width:900px;}
.faq-item{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:20px 24px;box-shadow:var(--shadow-sm);transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item:hover{border-color:rgba(255,180,0,.55);box-shadow:var(--shadow-md);}
.faq-item h3{font-size:16.5px;font-weight:800;color:var(--navy);margin-bottom:8px;}
.faq-item p{font-size:15px;line-height:1.9;color:var(--ink-2);}

/* CTA */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--radius-lg);
  padding:52px 48px;color:#fff;
  background:
    linear-gradient(120deg,rgba(15,19,48,.94),rgba(37,44,84,.90)),
    url('/assets/images/backpic/back-5.webp') center/cover no-repeat;
  box-shadow:var(--shadow-lg);
}
.cta-band h2{font-size:28px;font-weight:900;line-height:1.4;max-width:620px;}
.cta-band p{margin-top:14px;max-width:640px;font-size:15.5px;line-height:1.9;color:rgba(255,255,255,.76);}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:26px;}

/* 提示条 */
.notice-bar{
  display:flex;gap:16px;align-items:flex-start;
  padding:22px 26px;border-radius:var(--radius);
  background:rgba(255,180,0,.10);border:1px solid rgba(255,180,0,.32);
}
.notice-bar strong{color:var(--gold-deep);font-weight:900;flex-shrink:0;font-size:15px;}
.notice-bar p{font-size:14.5px;line-height:1.85;color:var(--ink-2);}

/* 页脚 */
.site-footer{background:var(--navy-deep);color:rgba(255,255,255,.72);padding:62px 0 0;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:38px;padding-bottom:44px;}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand p{font-size:14.5px;line-height:1.9;color:rgba(255,255,255,.62);max-width:320px;}
.footer-col h4{font-size:15px;font-weight:800;color:#fff;margin-bottom:16px;}
.footer-col ul li{font-size:14px;line-height:1.9;color:rgba(255,255,255,.62);margin-bottom:8px;}
.footer-col ul li a:hover{color:var(--gold-light);}
.footer-bottom{border-top:1px solid rgba(255,255,255,.10);padding:20px 0;}
.footer-bottom-inner{display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;}
.footer-bottom p{font-size:13px;color:rgba(255,255,255,.48);}

@media (max-width:1024px){
  .article-layout{grid-template-columns:1fr;}
  .side-stack{position:static;}
  .stage-grid,.channel-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .article-hero h1{font-size:32px;}
  .post-inner{padding:32px 28px 38px;}
}
@media (max-width:900px){
  .nav-actions{display:none;}
  .nav-toggle{display:flex;}
  .nav-links{
    position:absolute;left:0;right:0;top:74px;
    flex-direction:column;align-items:stretch;gap:4px;
    background:rgba(15,19,48,.98);
    border-bottom:1px solid rgba(255,255,255,.10);
    padding:12px 16px 18px;
    max-height:0;overflow:hidden;opacity:0;pointer-events:none;
    transition:max-height .28s ease,opacity .2s ease,padding .2s ease;
  }
  .nav-links.open{max-height:420px;opacity:1;pointer-events:auto;}
  .nav-links a{padding:12px 14px;border-radius:10px;font-size:15px;}
}
@media (max-width:768px){
  .section{padding:60px 0;}
  .article-wrap{padding:44px 0 20px;}
  .article-hero{padding:40px 0 52px;}
  .article-hero h1{font-size:27px;}
  .article-lead{font-size:15px;}
  .take-grid{grid-template-columns:1fr;}
  .stage-grid,.channel-grid{grid-template-columns:1fr;}
  .takeaways,.chart-panel,.side-card{padding:24px 20px;}
  .chart-row{grid-template-columns:90px 1fr 64px;gap:10px;}
  .cta-band{padding:36px 24px;}
  .cta-band h2{font-size:23px;}
  .section-head h2{font-size:24px;}
  .article-body h2{font-size:21px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
}
@media (max-width:520px){
  .container{padding:0 16px;}
  .article-hero h1{font-size:23px;}
  .post-inner{padding:24px 18px 30px;}
  .article-body{font-size:15.5px;line-height:1.95;}
  .takeaways,.chart-panel{padding:20px 16px;}
  .chart-row{grid-template-columns:78px 1fr 54px;font-size:13px;}
  .btn{padding:10px 18px;font-size:14px;}
  .footer-bottom-inner{flex-direction:column;}
}

/* roulang page: category1 */
:root{
  --navy:#1a1f3d;
  --navy-deep:#0f1330;
  --navy-soft:#252c54;
  --gold:#ffb400;
  --gold-light:#ffd166;
  --gold-deep:#e08a00;
  --cyan:#35e0d0;
  --bg:#f4f6fb;
  --bg-alt:#eef1f9;
  --surface:#ffffff;
  --ink:#161a33;
  --ink-2:#4b5170;
  --ink-3:#8189a6;
  --line:#e1e6f2;
  --radius:12px;
  --radius-lg:20px;
  --radius-sm:8px;
  --shadow-sm:0 2px 10px rgba(20,26,60,.06);
  --shadow-md:0 12px 30px rgba(20,26,60,.10);
  --shadow-lg:0 26px 60px rgba(15,19,48,.20);
  --w:1160px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;}
button,input,select,textarea{font:inherit;color:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
a:focus-visible,button:focus-visible{outline:3px solid rgba(255,180,0,.65);outline-offset:3px;border-radius:6px;}
.container{width:100%;max-width:var(--w);margin:0 auto;padding:0 24px;}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 22px;border-radius:999px;border:1px solid transparent;
  font-size:15px;font-weight:700;letter-spacing:.3px;cursor:pointer;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease,color .18s ease,border-color .18s ease;
  white-space:nowrap;
}
.btn-lg{padding:14px 30px;font-size:16px;}
.btn-block{width:100%;}
.btn-gold{
  background:linear-gradient(135deg,var(--gold-light) 0%,var(--gold) 55%,var(--gold-deep) 100%);
  color:#241a00;box-shadow:0 8px 22px rgba(255,180,0,.32);
}
.btn-gold:hover{transform:translateY(-2px);box-shadow:0 14px 30px rgba(255,180,0,.42);}
.btn-gold:active{transform:translateY(0);box-shadow:0 6px 16px rgba(255,180,0,.30);}
.btn-outline{background:transparent;color:#fff;border-color:rgba(255,255,255,.42);}
.btn-outline:hover{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.72);transform:translateY(-2px);}
.btn-ghost{background:rgba(255,255,255,.10);color:#fff;border-color:rgba(255,255,255,.16);}
.btn-ghost:hover{background:rgba(255,255,255,.20);}
.btn-line{background:#fff;color:var(--navy);border-color:var(--line);box-shadow:var(--shadow-sm);}
.btn-line:hover{border-color:var(--gold);color:var(--gold-deep);transform:translateY(-2px);box-shadow:var(--shadow-md);}

/* 头部导航 */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(15,19,48,.94);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid rgba(255,255,255,.09);
}
.nav{display:flex;align-items:center;gap:22px;height:74px;position:relative;}
.brand{display:flex;align-items:center;gap:11px;color:#fff;font-weight:800;font-size:18px;letter-spacing:.6px;flex-shrink:0;}
.brand-mark{
  width:36px;height:36px;border-radius:11px;
  background:linear-gradient(135deg,var(--gold-light),var(--gold-deep));
  display:grid;place-items:center;color:#241a00;font-size:17px;font-weight:900;
  box-shadow:0 6px 16px rgba(255,180,0,.32);
}
.nav-links{display:flex;align-items:center;gap:4px;}
.nav-links a{
  color:rgba(255,255,255,.72);font-size:15px;font-weight:500;
  padding:9px 15px;border-radius:999px;transition:color .2s,background .2s;
}
.nav-links a:hover{color:#fff;background:rgba(255,255,255,.09);}
.nav-links a.active{
  color:#241a00;font-weight:700;
  background:linear-gradient(135deg,var(--gold-light),var(--gold));
  box-shadow:0 6px 16px rgba(255,180,0,.28);
}
.nav-actions{margin-left:auto;display:flex;align-items:center;gap:10px;}
.nav-toggle{
  display:none;margin-left:auto;width:42px;height:42px;border-radius:12px;
  background:rgba(255,255,255,.09);border:1px solid rgba(255,255,255,.14);
  flex-direction:column;justify-content:center;align-items:center;gap:5px;cursor:pointer;
  transition:background .2s;
}
.nav-toggle:hover{background:rgba(255,255,255,.18);}
.nav-toggle span{display:block;width:18px;height:2px;background:#fff;border-radius:2px;transition:transform .2s,opacity .2s;}
.nav-toggle.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle.is-open span:nth-child(2){opacity:0;}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

/* 板块基础 */
.section{padding:86px 0;}
.section-alt{background:var(--bg-alt);}
.section-dark{background:var(--navy-deep);color:#fff;position:relative;overflow:hidden;}
.section-dark::before{
  content:"";position:absolute;inset:0;
  background:radial-gradient(58% 70% at 82% 0%,rgba(255,180,0,.14),transparent 62%);
  pointer-events:none;
}
.section-dark>.container{position:relative;z-index:1;}
.section-head{max-width:780px;margin-bottom:46px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.eyebrow{
  display:inline-block;font-size:13px;font-weight:800;letter-spacing:2px;
  color:var(--gold-deep);background:rgba(255,180,0,.14);
  padding:5px 14px;border-radius:999px;margin-bottom:16px;
}
.eyebrow.on-dark{color:var(--gold-light);background:rgba(255,180,0,.16);}
.section-head h2{font-size:32px;line-height:1.34;color:var(--navy);font-weight:800;}
.section-dark .section-head h2{color:#fff;}
.section-head p{margin-top:14px;font-size:16px;color:var(--ink-2);line-height:1.9;}
.section-dark .section-head p{color:rgba(255,255,255,.72);}

/* Hero */
.hero{
  position:relative;color:#fff;overflow:hidden;
  padding:74px 0 86px;
  background:
    linear-gradient(118deg,rgba(15,19,48,.96) 0%,rgba(26,31,61,.92) 52%,rgba(37,44,84,.84) 100%),
    url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
}
.hero::after{
  content:"";position:absolute;inset:auto -10% -42% -10%;height:360px;
  background:radial-gradient(60% 100% at 50% 100%,rgba(255,180,0,.16),transparent 70%);
  pointer-events:none;
}
.hero-grid{
  position:relative;z-index:2;
  display:grid;grid-template-columns:minmax(0,1.28fr) minmax(0,1fr);
  gap:54px;align-items:start;
}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;letter-spacing:1.4px;
  color:var(--gold-light);background:rgba(255,180,0,.14);
  border:1px solid rgba(255,180,0,.34);
  padding:6px 16px;border-radius:999px;margin-bottom:22px;
}
.hero-badge::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--gold);box-shadow:0 0 10px var(--gold);}
.hero h1{
  font-size:42px;line-height:1.28;font-weight:900;letter-spacing:.5px;
  background:linear-gradient(120deg,#ffffff 0%,#ffffff 56%,var(--gold-light) 100%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-lead{
  margin-top:22px;font-size:16.5px;line-height:1.95;color:rgba(255,255,255,.78);max-width:640px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
.hero-stats{display:flex;flex-wrap:wrap;gap:34px;margin-top:40px;padding-top:26px;border-top:1px solid rgba(255,255,255,.14);}
.hero-stats li{display:flex;flex-direction:column;gap:2px;}
.hero-stats strong{font-size:25px;font-weight:900;color:var(--gold-light);line-height:1.2;}
.hero-stats span{font-size:13.5px;color:rgba(255,255,255,.62);}

/* 预热面板 */
.preheat{
  background:linear-gradient(180deg,rgba(255,255,255,.10) 0%,rgba(255,255,255,.035) 100%);
  border:1px solid rgba(255,255,255,.16);
  border-radius:var(--radius-lg);
  padding:26px 24px 24px;
  box-shadow:var(--shadow-lg);
}
.preheat-top{display:flex;align-items:center;gap:20px;}
.ring{
  width:132px;height:132px;flex-shrink:0;border-radius:50%;
  background:conic-gradient(var(--gold) calc(var(--p) * 1%),rgba(255,255,255,.13) 0);
  display:grid;place-items:center;position:relative;
  box-shadow:0 0 30px rgba(255,180,0,.20);
}
.ring::before{
  content:"";position:absolute;inset:11px;border-radius:50%;
  background:rgba(15,19,48,.94);border:1px solid rgba(255,255,255,.14);
}
.ring-inner{position:relative;z-index:1;text-align:center;line-height:1.3;}
.ring-inner strong{display:block;font-size:26px;font-weight:900;color:var(--gold-light);}
.ring-inner span{display:block;font-size:11.5px;letter-spacing:1px;color:rgba(255,255,255,.62);}
.preheat-copy h3{font-size:17px;font-weight:800;color:#fff;margin-bottom:6px;}
.preheat-copy p{font-size:13.5px;line-height:1.8;color:rgba(255,255,255,.66);}
.tier-preview{margin-top:20px;display:grid;gap:9px;}
.tier-preview li{
  display:flex;align-items:center;gap:12px;
  padding:11px 14px;border-radius:var(--radius);
  background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.10);
  transition:background .2s,border-color .2s,transform .2s;
}
.tier-preview li:hover{background:rgba(255,180,0,.12);border-color:rgba(255,180,0,.36);transform:translateX(3px);}
.tp-rank{font-size:13px;font-weight:700;color:rgba(255,255,255,.82);min-width:52px;}
.tier-preview b{font-size:16px;font-weight:900;color:var(--gold-light);}
.tier-preview em{margin-left:auto;font-style:normal;font-size:12px;color:rgba(255,255,255,.56);}
.preheat .btn-block{margin-top:20px;}

/* 机制拆解 */
.split{display:grid;grid-template-columns:minmax(0,.92fr) minmax(0,1.08fr);gap:52px;align-items:center;}
.split-media{position:relative;border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-lg);}
.split-media img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/3;transition:transform .5s ease;}
.split-media:hover img{transform:scale(1.04);}
.split-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(15,19,48,0) 42%,rgba(15,19,48,.72) 100%);
}
.split-media figcaption{
  position:absolute;left:0;right:0;bottom:0;z-index:2;
  padding:20px 22px;color:#fff;font-size:14px;font-weight:700;letter-spacing:.4px;
}
.step-list{display:grid;gap:16px;}
.step-item{
  display:grid;grid-template-columns:48px minmax(0,1fr);gap:16px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:20px 22px;box-shadow:var(--shadow-sm);
  transition:transform .2s,box-shadow .2s,border-color .2s;
}
.step-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:rgba(255,180,0,.5);}
.step-no{
  width:48px;height:48px;border-radius:14px;display:grid;place-items:center;
  background:linear-gradient(135deg,rgba(255,209,102,.28),rgba(255,180,0,.16));
  color:var(--gold-deep);font-weight:900;font-size:17px;
}
.step-item h3{font-size:17px;font-weight:800;color:var(--navy);margin-bottom:6px;}
.step-item p{font-size:14.5px;line-height:1.85;color:var(--ink-2);}

/* 档位速查 */
.tier-grid{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:16px;}
.tier-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:22px 18px;box-shadow:var(--shadow-sm);
  display:flex;flex-direction:column;gap:10px;
  transition:transform .2s,box-shadow .2s,border-color .2s;
  position:relative;overflow:hidden;
}
.tier-card::before{
  content:"";position:absolute;left:0;top:0;height:4px;width:100%;
  background:linear-gradient(90deg,var(--gold-light),var(--gold-deep));
  opacity:.85;
}
.tier-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-md);border-color:rgba(255,180,0,.55);}
.tier-name{font-size:14px;font-weight:800;color:var(--ink-2);letter-spacing:.6px;}
.tier-rate{font-size:24px;font-weight:900;color:var(--navy);line-height:1.2;}
.tier-card p{font-size:13.5px;line-height:1.8;color:var(--ink-2);}
.tier-tag{
  align-self:flex-start;margin-top:auto;
  font-size:12px;font-weight:700;color:var(--gold-deep);
  background:rgba(255,180,0,.14);padding:3px 10px;border-radius:999px;
}

/* 节奏时间线 */
.rhythm{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px;margin-top:8px;}
.rhythm-item{
  position:relative;padding:24px 20px 22px;
  border-radius:var(--radius);border:1px solid rgba(255,255,255,.14);
  background:linear-gradient(180deg,rgba(255,255,255,.08),rgba(255,255,255,.02));
  transition:transform .2s,border-color .2s,background .2s;
}
.rhythm-item:hover{transform:translateY(-4px);border-color:rgba(255,180,0,.5);background:linear-gradient(180deg,rgba(255,180,0,.14),rgba(255,255,255,.02));}
.rhythm-item i{
  display:inline-grid;place-items:center;width:34px;height:34px;border-radius:10px;
  background:rgba(255,180,0,.18);color:var(--gold-light);font-style:normal;font-weight:900;font-size:14px;
  margin-bottom:14px;
}
.rhythm-item h3{font-size:16.5px;font-weight:800;color:#fff;margin-bottom:8px;}
.rhythm-item p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.68);}
.rhythm-note{
  margin-top:26px;padding:18px 22px;border-radius:var(--radius);
  border-left:3px solid var(--gold);
  background:rgba(255,255,255,.06);
  font-size:14.5px;line-height:1.85;color:rgba(255,255,255,.76);
}

/* 场景卡 */
.scene-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px;}
.scene-card{
  display:grid;grid-template-columns:150px minmax(0,1fr);gap:20px;align-items:center;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:18px;box-shadow:var(--shadow-sm);
  transition:transform .22s,box-shadow .22s,border-color .22s;
}
.scene-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:rgba(255,180,0,.5);}
.scene-thumb{border-radius:var(--radius);overflow:hidden;aspect-ratio:4/3;}
.scene-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .45s ease;}
.scene-card:hover .scene-thumb img{transform:scale(1.06);}
.scene-card h3{font-size:17px;font-weight:800;color:var(--navy);margin-bottom:8px;}
.scene-card p{font-size:14.5px;line-height:1.85;color:var(--ink-2);}

/* 数据板块 */
.data-wrap{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:50px;align-items:center;}
.data-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;}
.data-cell{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:22px 20px;box-shadow:var(--shadow-sm);
  transition:transform .2s,box-shadow .2s;
}
.data-cell:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);}
.data-cell strong{display:block;font-size:30px;font-weight:900;color:var(--navy);line-height:1.2;}
.data-cell strong em{font-style:normal;font-size:14px;font-weight:800;color:var(--gold-deep);margin-left:4px;}
.data-cell span{display:block;margin-top:6px;font-size:13.5px;color:var(--ink-3);}
.data-copy h2{font-size:30px;line-height:1.34;font-weight:800;color:var(--navy);margin-bottom:16px;}
.data-copy p{font-size:15.5px;line-height:1.95;color:var(--ink-2);margin-bottom:14px;}
.check-list{display:grid;gap:10px;margin-top:20px;}
.check-list li{
  position:relative;padding-left:26px;font-size:14.5px;line-height:1.8;color:var(--ink-2);
}
.check-list li::before{
  content:"";position:absolute;left:0;top:9px;width:12px;height:12px;border-radius:4px;
  background:linear-gradient(135deg,var(--gold-light),var(--gold-deep));
}

/* 资讯列表 */
.news-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;}
.news-card{
  display:flex;flex-direction:column;gap:10px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:22px 20px;box-shadow:var(--shadow-sm);
  transition:transform .2s,box-shadow .2s,border-color .2s;
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:rgba(255,180,0,.5);}
.news-tag{
  align-self:flex-start;font-size:12px;font-weight:800;letter-spacing:.6px;
  color:var(--gold-deep);background:rgba(255,180,0,.15);
  padding:3px 10px;border-radius:999px;
}
.news-card h3{font-size:16.5px;font-weight:800;line-height:1.6;color:var(--navy);}
.news-card p{font-size:14px;line-height:1.8;color:var(--ink-2);}
.news-card time{margin-top:auto;font-size:12.5px;color:var(--ink-3);}
.news-empty{
  padding:34px 24px;border-radius:var(--radius);border:1px dashed var(--line);
  background:var(--surface);text-align:center;color:var(--ink-3);font-size:15px;
}
.news-more{display:flex;justify-content:center;margin-top:34px;}

/* FAQ */
.faq{display:grid;gap:14px;max-width:900px;margin:0 auto;}
.faq-item{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:0 22px;box-shadow:var(--shadow-sm);overflow:hidden;
  transition:border-color .2s,box-shadow .2s;
}
.faq-item[open]{border-color:rgba(255,180,0,.55);box-shadow:var(--shadow-md);}
.faq-item summary{
  list-style:none;cursor:pointer;padding:19px 34px 19px 0;position:relative;
  font-size:16px;font-weight:800;color:var(--navy);line-height:1.6;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"+";position:absolute;right:0;top:50%;transform:translateY(-50%);
  width:26px;height:26px;border-radius:50%;display:grid;place-items:center;
  background:rgba(255,180,0,.16);color:var(--gold-deep);font-size:18px;font-weight:900;
  transition:transform .2s,background .2s;
}
.faq-item[open] summary::after{content:"−";background:rgba(255,180,0,.28);}
.faq-item p{padding:0 0 20px;font-size:14.8px;line-height:1.9;color:var(--ink-2);}

/* 收口 CTA */
.cta-band{
  position:relative;overflow:hidden;color:#fff;
  background:
    linear-gradient(120deg,rgba(15,19,48,.95),rgba(37,44,84,.86)),
    url('/assets/images/backpic/back-5.webp') center/cover no-repeat;
  border-radius:var(--radius-lg);
  padding:52px 48px;
  box-shadow:var(--shadow-lg);
}
.cta-band h2{font-size:30px;font-weight:900;line-height:1.36;margin-bottom:14px;}
.cta-band p{font-size:15.5px;line-height:1.9;color:rgba(255,255,255,.76);max-width:640px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;}

/* 页脚 */
.site-footer{background:var(--navy-deep);color:rgba(255,255,255,.72);padding:64px 0 0;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.6fr .9fr .9fr .9fr;gap:42px;padding-bottom:46px;}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand p{font-size:14px;line-height:1.9;color:rgba(255,255,255,.62);max-width:330px;}
.footer-col h4{font-size:15px;font-weight:800;color:#fff;margin-bottom:16px;letter-spacing:.6px;}
.footer-col ul{display:grid;gap:10px;}
.footer-col li{font-size:14px;line-height:1.75;color:rgba(255,255,255,.62);}
.footer-col a{font-size:14px;color:rgba(255,255,255,.62);transition:color .2s,padding-left .2s;}
.footer-col a:hover{color:var(--gold-light);padding-left:4px;}
.footer-bottom{border-top:1px solid rgba(255,255,255,.10);padding:20px 0;}
.footer-bottom-inner{display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;}
.footer-bottom p{font-size:13px;color:rgba(255,255,255,.52);}

/* 响应式 */
@media (max-width:1024px){
  .hero-grid{grid-template-columns:1fr;gap:40px;}
  .hero h1{font-size:36px;}
  .split{grid-template-columns:1fr;gap:34px;}
  .data-wrap{grid-template-columns:1fr;gap:34px;}
  .tier-grid{grid-template-columns:repeat(3,minmax(0,1fr));}
  .rhythm{grid-template-columns:repeat(2,minmax(0,1fr));}
  .news-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px;}
  .container{padding:0 22px;}
}
@media (max-width:980px){
  .nav-links{
    position:absolute;top:74px;left:0;right:0;
    flex-direction:column;align-items:stretch;gap:4px;
    background:rgba(15,19,48,.98);
    border-bottom:1px solid rgba(255,255,255,.10);
    padding:14px 18px 20px;
    display:none;
    box-shadow:0 18px 40px rgba(0,0,0,.34);
  }
  .nav-links.is-open{display:flex;}
  .nav-links a{padding:12px 16px;border-radius:10px;font-size:15.5px;}
  .nav-actions{display:none;}
  .nav-toggle{display:flex;}
}
@media (max-width:768px){
  .section{padding:62px 0;}
  .hero{padding:52px 0 64px;}
  .hero h1{font-size:30px;}
  .hero-lead{font-size:15.5px;}
  .section-head h2{font-size:25px;}
  .data-copy h2{font-size:24px;}
  .tier-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .scene-grid{grid-template-columns:1fr;}
  .rhythm{grid-template-columns:1fr;}
  .news-grid{grid-template-columns:1fr;}
  .preheat-top{flex-direction:column;align-items:flex-start;gap:16px;}
  .ring{width:118px;height:118px;}
  .cta-band{padding:38px 26px;border-radius:var(--radius);}
  .cta-band h2{font-size:24px;}
  .hero-stats{gap:26px;}
  .footer-grid{grid-template-columns:1fr;gap:30px;}
  .scene-card{grid-template-columns:1fr;}
  .scene-thumb{aspect-ratio:16/9;}
}
@media (max-width:520px){
  .container{padding:0 16px;}
  .hero h1{font-size:26px;line-height:1.34;}
  .hero-actions .btn{width:100%;}
  .hero-stats strong{font-size:22px;}
  .tier-grid{grid-template-columns:1fr;}
  .data-grid{grid-template-columns:1fr;}
  .step-item{grid-template-columns:1fr;gap:12px;}
  .faq-item{padding:0 16px;}
  .faq-item summary{font-size:15px;padding:16px 30px 16px 0;}
  .cta-actions .btn{width:100%;}
  .brand-text{font-size:16px;}
}

/* roulang page: category2 */
/* ===== 新国粹爆分 · 设计系统 ===== */
:root{
 --navy:#1a1f3d;
 --navy-deep:#0f1330;
 --navy-soft:#252c54;
 --gold:#ffb400;
 --gold-light:#ffd166;
 --gold-deep:#e08a00;
 --cyan:#35e0d0;
 --bg:#f4f6fb;
 --bg-alt:#eef1f9;
 --surface:#ffffff;
 --ink:#161a33;
 --ink-2:#4b5170;
 --ink-3:#8189a6;
 --line:#e1e6f2;
 --radius:12px;
 --radius-lg:20px;
 --radius-sm:8px;
 --shadow-sm:0 2px 10px rgba(20,26,60,.06);
 --shadow-md:0 12px 30px rgba(20,26,60,.10);
 --shadow-lg:0 26px 60px rgba(15,19,48,.20);
 --w:1160px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
 margin:0;
 font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Helvetica Neue",Arial,sans-serif;
 font-size:16px;line-height:1.75;color:var(--ink);background:var(--bg);
 -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,h5,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;}
button,input,select,textarea{font:inherit;color:inherit;}
button{cursor:pointer;}
:focus-visible{outline:2px solid var(--gold);outline-offset:3px;border-radius:6px;}
.container{width:100%;max-width:var(--w);margin:0 auto;padding:0 24px;}

/* ===== 按钮 ===== */
.btn{
 display:inline-flex;align-items:center;justify-content:center;gap:8px;
 padding:11px 22px;border-radius:999px;border:1px solid transparent;
 font-size:15px;font-weight:700;letter-spacing:.3px;cursor:pointer;
 transition:transform .18s ease,box-shadow .18s ease,background .18s ease,color .18s ease,border-color .18s ease;
 white-space:nowrap;
}
.btn-lg{padding:14px 30px;font-size:16px;}
.btn-gold{
 background:linear-gradient(135deg,var(--gold-light) 0%,var(--gold) 55%,var(--gold-deep) 100%);
 color:#241a00;box-shadow:0 8px 22px rgba(255,180,0,.32);
}
.btn-gold:hover{transform:translateY(-2px);box-shadow:0 14px 30px rgba(255,180,0,.42);}
.btn-gold:active{transform:translateY(0);box-shadow:0 6px 16px rgba(255,180,0,.30);}
.btn-outline{background:transparent;color:#fff;border-color:rgba(255,255,255,.42);}
.btn-outline:hover{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.72);transform:translateY(-2px);}
.btn-ghost{background:rgba(255,255,255,.10);color:#fff;border-color:rgba(255,255,255,.16);}
.btn-ghost:hover{background:rgba(255,255,255,.20);}

/* ===== 头部导航 ===== */
.site-header{
 position:sticky;top:0;z-index:80;
 background:rgba(15,19,48,.94);
 backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
 border-bottom:1px solid rgba(255,255,255,.09);
}
.nav{display:flex;align-items:center;gap:22px;height:74px;position:relative;}
.brand{display:flex;align-items:center;gap:11px;color:#fff;font-weight:800;font-size:18px;letter-spacing:.6px;flex-shrink:0;}
.brand-mark{
 width:36px;height:36px;border-radius:11px;
 background:linear-gradient(135deg,var(--gold-light),var(--gold-deep));
 display:grid;place-items:center;color:#241a00;font-size:17px;font-weight:900;
 box-shadow:0 6px 16px rgba(255,180,0,.32);
}
.nav-links{display:flex;align-items:center;gap:4px;}
.nav-links a{
 color:rgba(255,255,255,.72);font-size:15px;font-weight:500;
 padding:9px 15px;border-radius:999px;transition:color .2s,background .2s;
}
.nav-links a:hover{color:#fff;background:rgba(255,255,255,.09);}
.nav-links a.active{
 color:#241a00;font-weight:700;
 background:linear-gradient(135deg,var(--gold-light),var(--gold));
 box-shadow:0 6px 16px rgba(255,180,0,.28);
}
.nav-actions{margin-left:auto;display:flex;align-items:center;gap:10px;}
.nav-toggle{
 display:none;margin-left:auto;width:42px;height:42px;border-radius:12px;
 background:rgba(255,255,255,.09);border:1px solid rgba(255,255,255,.14);
 flex-direction:column;justify-content:center;align-items:center;gap:5px;cursor:pointer;
}
.nav-toggle span{display:block;width:18px;height:2px;background:#fff;border-radius:2px;transition:transform .2s,opacity .2s;}

/* ===== 通用板块 ===== */
.section{padding:82px 0;}
.section-alt{background:var(--bg-alt);}
.section-dark{background:var(--navy-deep);color:#fff;}
.section-head{max-width:760px;margin-bottom:44px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.eyebrow{
 display:inline-block;font-size:13px;font-weight:800;letter-spacing:2px;
 color:var(--gold-deep);background:rgba(255,180,0,.14);
 padding:5px 14px;border-radius:999px;margin-bottom:16px;
}
.eyebrow.on-dark{color:var(--gold-light);background:rgba(255,180,0,.16);}
.section-head h2{font-size:32px;color:var(--navy);font-weight:800;line-height:1.35;}
.section-dark .section-head h2{color:#fff;}
.section-head p{margin-top:14px;font-size:16px;color:var(--ink-2);line-height:1.9;}
.section-dark .section-head p{color:rgba(255,255,255,.72);}

/* ===== 分类页 Hero（斜切色块） ===== */
.page-hero{
 position:relative;overflow:hidden;color:#fff;
 padding:70px 0 88px;
 background:
  linear-gradient(120deg,rgba(15,19,48,.97) 0%,rgba(26,31,61,.94) 48%,rgba(37,44,84,.88) 100%),
  url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
}
.page-hero::before{
 content:"";position:absolute;top:-34%;right:-10%;width:54%;height:176%;
 background:linear-gradient(135deg,rgba(255,180,0,.34) 0%,rgba(255,180,0,.06) 62%,rgba(255,180,0,0) 100%);
 transform:skewX(-16deg);opacity:.72;pointer-events:none;
}
.page-hero::after{
 content:"";position:absolute;left:-14%;bottom:-58%;width:58%;height:112%;
 background:linear-gradient(135deg,rgba(53,224,208,.26) 0%,rgba(53,224,208,0) 100%);
 transform:skewX(-16deg);pointer-events:none;
}
.page-hero-inner{position:relative;z-index:2;max-width:840px;}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:rgba(255,255,255,.60);margin-bottom:26px;}
.crumb a{color:rgba(255,255,255,.78);transition:color .2s;}
.crumb a:hover{color:var(--gold-light);}
.crumb span.sep{color:rgba(255,255,255,.32);}
.hero-badge{
 display:inline-flex;align-items:center;gap:8px;
 font-size:13px;font-weight:700;letter-spacing:1.4px;
 color:var(--gold-light);background:rgba(255,180,0,.14);
 border:1px solid rgba(255,180,0,.34);
 padding:6px 16px;border-radius:999px;margin-bottom:22px;
}
.hero-badge::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--gold);box-shadow:0 0 10px var(--gold);}
.page-hero h1{
 font-size:44px;line-height:1.24;font-weight:900;letter-spacing:.5px;
 background:linear-gradient(120deg,#ffffff 0%,#ffffff 52%,var(--gold-light) 100%);
 -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-lead{
 margin-top:22px;font-size:16.5px;line-height:1.95;color:rgba(255,255,255,.78);max-width:700px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px;}
.hero-meta{display:flex;flex-wrap:wrap;gap:12px;margin-top:36px;}
.hero-meta li{
 font-size:13.5px;color:rgba(255,255,255,.78);
 background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.14);
 padding:6px 15px;border-radius:999px;
}

/* ===== 技巧四维卡片 ===== */
.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;}
.skill-card{
 background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
 padding:28px 24px;box-shadow:var(--shadow-sm);
 transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
 position:relative;overflow:hidden;
}
.skill-card::before{
 content:"";position:absolute;left:0;top:0;width:100%;height:3px;
 background:linear-gradient(90deg,var(--gold),var(--gold-light));
 opacity:0;transition:opacity .2s ease;
}
.skill-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-md);border-color:#d5dcee;}
.skill-card:hover::before{opacity:1;}
.skill-icon{
 width:46px;height:46px;border-radius:13px;display:grid;place-items:center;
 background:linear-gradient(135deg,rgba(255,180,0,.20),rgba(255,180,0,.06));
 color:var(--gold-deep);font-size:19px;font-weight:900;margin-bottom:18px;
 border:1px solid rgba(255,180,0,.24);
}
.skill-card h3{font-size:18px;font-weight:800;color:var(--navy);margin-bottom:10px;}
.skill-card p{font-size:14.5px;line-height:1.85;color:var(--ink-2);}

/* ===== 图文拆解 ===== */
.split{
 display:grid;grid-template-columns:repeat(2,minmax(0,1fr));
 gap:52px;align-items:center;
}
.split + .split{margin-top:64px;}
.split.reverse .split-media{order:2;}
.split-media{
 position:relative;border-radius:var(--radius-lg);overflow:hidden;
 box-shadow:var(--shadow-md);border:1px solid var(--line);background:var(--navy-deep);
}
.split-media img{width:100%;height:340px;object-fit:cover;}
.split-media figcaption{
 position:absolute;left:0;right:0;bottom:0;
 padding:16px 20px;font-size:13.5px;color:rgba(255,255,255,.86);
 background:linear-gradient(180deg,rgba(15,19,48,0),rgba(15,19,48,.86));
}
.split-body h3{font-size:24px;font-weight:800;color:var(--navy);line-height:1.4;margin-bottom:16px;}
.split-body p{font-size:15.5px;line-height:1.95;color:var(--ink-2);margin-bottom:14px;}
.check-list{margin-top:20px;display:grid;gap:12px;}
.check-list li{
 position:relative;padding-left:30px;font-size:15px;line-height:1.8;color:var(--ink-2);
}
.check-list li::before{
 content:"";position:absolute;left:0;top:8px;width:16px;height:16px;border-radius:50%;
 background:linear-gradient(135deg,var(--gold-light),var(--gold-deep));
 box-shadow:0 3px 8px rgba(255,180,0,.32);
}
.check-list li::after{
 content:"";position:absolute;left:5px;top:12px;width:6px;height:6px;border-radius:50%;background:#241a00;
}

/* ===== 训练路径时间线 ===== */
.timeline{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;position:relative;}
.step{
 background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
 padding:26px 22px;box-shadow:var(--shadow-sm);position:relative;
 transition:transform .2s ease,box-shadow .2s ease;
}
.step:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);}
.step-no{
 display:inline-flex;align-items:center;justify-content:center;
 width:34px;height:34px;border-radius:10px;margin-bottom:16px;
 background:var(--navy);color:var(--gold-light);font-weight:900;font-size:15px;
}
.step h3{font-size:17px;font-weight:800;color:var(--navy);margin-bottom:9px;line-height:1.45;}
.step p{font-size:14.5px;line-height:1.85;color:var(--ink-2);}

/* ===== 数据板块 ===== */
.stat-row{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px;margin-bottom:38px;}
.stat{
 background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);
 border-radius:var(--radius);padding:22px 20px;
 transition:background .2s ease,border-color .2s ease,transform .2s ease;
}
.stat:hover{background:rgba(255,255,255,.11);border-color:rgba(255,180,0,.36);transform:translateY(-3px);}
.stat strong{display:block;font-size:28px;font-weight:900;color:var(--gold-light);line-height:1.25;}
.stat span{display:block;margin-top:6px;font-size:13.5px;color:rgba(255,255,255,.66);}
.table-wrap{
 border-radius:var(--radius);overflow:hidden;border:1px solid rgba(255,255,255,.12);
 background:rgba(255,255,255,.04);
}
table{width:100%;border-collapse:collapse;font-size:14.5px;}
thead th{
 text-align:left;padding:16px 20px;font-weight:800;font-size:14px;
 color:var(--gold-light);background:rgba(255,255,255,.07);
 border-bottom:1px solid rgba(255,255,255,.12);white-space:nowrap;
}
tbody td{
 padding:15px 20px;color:rgba(255,255,255,.80);line-height:1.75;
 border-bottom:1px solid rgba(255,255,255,.07);vertical-align:top;
}
tbody tr:last-child td{border-bottom:0;}
tbody tr:hover td{background:rgba(255,255,255,.05);}

/* ===== 误区列表 ===== */
.mistake-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;}
.mistake{
 background:var(--surface);border:1px solid var(--line);border-left:4px solid var(--gold);
 border-radius:var(--radius);padding:22px 24px;box-shadow:var(--shadow-sm);
 transition:transform .2s ease,box-shadow .2s ease;
}
.mistake:hover{transform:translateX(4px);box-shadow:var(--shadow-md);}
.mistake h3{font-size:16.5px;font-weight:800;color:var(--navy);margin-bottom:8px;}
.mistake p{font-size:14.5px;line-height:1.85;color:var(--ink-2);}

/* ===== 资讯列表 ===== */
.news-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;}
.news-card{
 display:flex;flex-direction:column;
 background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
 padding:26px 24px;box-shadow:var(--shadow-sm);
 transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.news-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-md);border-color:#d5dcee;}
.news-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:13px;color:var(--ink-3);margin-bottom:14px;}
.tag{
 display:inline-block;font-size:12.5px;font-weight:700;letter-spacing:.5px;
 color:var(--gold-deep);background:rgba(255,180,0,.14);
 padding:3px 11px;border-radius:999px;
}
.news-title{font-size:17px;font-weight:800;color:var(--navy);line-height:1.55;margin-bottom:10px;transition:color .2s ease;}
.news-card:hover .news-title{color:var(--gold-deep);}
.news-excerpt{font-size:14.5px;line-height:1.85;color:var(--ink-2);}
.empty-tip{
 text-align:center;padding:44px 24px;border-radius:var(--radius);
 background:var(--surface);border:1px dashed var(--line);
 color:var(--ink-3);font-size:15px;
}

/* ===== 频道入口 ===== */
.channel-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;}
.channel{
 display:flex;flex-direction:column;gap:8px;
 background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
 padding:24px 22px;box-shadow:var(--shadow-sm);
 transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.channel:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:rgba(255,180,0,.42);}
.channel strong{font-size:17px;font-weight:800;color:var(--navy);}
.channel span{font-size:14px;line-height:1.8;color:var(--ink-2);}
.channel em{font-style:normal;font-size:13.5px;font-weight:700;color:var(--gold-deep);margin-top:4px;}

/* ===== FAQ ===== */
.faq{display:grid;gap:14px;max-width:900px;margin:0 auto;}
.faq-item{
 background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
 padding:4px 24px;box-shadow:var(--shadow-sm);transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item:hover{border-color:rgba(255,180,0,.42);box-shadow:var(--shadow-md);}
.faq-item summary{
 list-style:none;cursor:pointer;padding:20px 34px 20px 0;position:relative;
 font-size:16.5px;font-weight:800;color:var(--navy);line-height:1.6;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
 content:"";position:absolute;right:2px;top:28px;width:9px;height:9px;
 border-right:2px solid var(--gold-deep);border-bottom:2px solid var(--gold-deep);
 transform:rotate(45deg);transition:transform .22s ease;
}
.faq-item[open] summary::after{transform:rotate(-135deg);}
.faq-item .faq-body{padding:0 0 22px;font-size:15px;line-height:1.95;color:var(--ink-2);}

/* ===== 收口 CTA ===== */
.cta-band{
 position:relative;overflow:hidden;color:#fff;padding:76px 0;
 background:
  linear-gradient(118deg,rgba(15,19,48,.96) 0%,rgba(26,31,61,.92) 58%,rgba(37,44,84,.86) 100%),
  url('/assets/images/backpic/back-6.webp') center/cover no-repeat;
}
.cta-band::before{
 content:"";position:absolute;top:-40%;right:-6%;width:46%;height:180%;
 background:linear-gradient(135deg,rgba(255,180,0,.26),rgba(255,180,0,0));
 transform:skewX(-16deg);pointer-events:none;
}
.cta-inner{position:relative;z-index:2;display:grid;grid-template-columns:minmax(0,1.4fr) minmax(0,.8fr);gap:40px;align-items:center;}
.cta-inner h2{font-size:30px;font-weight:900;line-height:1.4;margin-bottom:14px;}
.cta-inner p{font-size:15.5px;line-height:1.95;color:rgba(255,255,255,.76);max-width:620px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px;}
.cta-side{
 background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.14);
 border-radius:var(--radius-lg);padding:26px 24px;
}
.cta-side h3{font-size:16px;font-weight:800;color:var(--gold-light);margin-bottom:14px;}
.cta-side li{
 font-size:14.5px;line-height:1.8;color:rgba(255,255,255,.80);
 padding-left:18px;position:relative;margin-bottom:9px;
}
.cta-side li::before{content:"";position:absolute;left:0;top:11px;width:7px;height:7px;border-radius:50%;background:var(--gold);}
.cta-side li:last-child{margin-bottom:0;}

/* ===== 页脚 ===== */
.site-footer{background:var(--navy-deep);color:rgba(255,255,255,.72);padding:64px 0 0;}
.footer-grid{
 display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;
 padding-bottom:48px;border-bottom:1px solid rgba(255,255,255,.10);
}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand p{font-size:14.5px;line-height:1.9;color:rgba(255,255,255,.62);max-width:330px;}
.footer-col h4{font-size:15px;font-weight:800;color:#fff;margin-bottom:16px;letter-spacing:.4px;}
.footer-col ul li{font-size:14px;line-height:1.85;margin-bottom:10px;color:rgba(255,255,255,.62);}
.footer-col ul li a{color:rgba(255,255,255,.72);transition:color .2s;}
.footer-col ul li a:hover{color:var(--gold-light);}
.footer-bottom{padding:22px 0;background:rgba(0,0,0,.22);}
.footer-bottom-inner{display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;}
.footer-bottom-inner p{font-size:13.5px;color:rgba(255,255,255,.52);}

/* ===== 响应式 ===== */
@media (max-width:1024px){
 .nav{height:66px;gap:14px;}
 .nav-toggle{display:flex;}
 .nav-links{
  position:absolute;top:100%;left:0;right:0;
  flex-direction:column;align-items:stretch;gap:6px;
  background:rgba(15,19,48,.985);
  border-bottom:1px solid rgba(255,255,255,.10);
  padding:14px 18px 18px;display:none;
  box-shadow:0 22px 44px rgba(0,0,0,.42);
 }
 .nav-links.open{display:flex;}
 .nav-links a{padding:12px 14px;border-radius:10px;font-size:15px;}
 .nav-actions{display:none;}
 .grid-4{grid-template-columns:repeat(2,minmax(0,1fr));}
 .timeline{grid-template-columns:repeat(2,minmax(0,1fr));}
 .stat-row{grid-template-columns:repeat(2,minmax(0,1fr));}
 .news-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
 .split{gap:34px;}
 .split-media img{height:290px;}
 .cta-inner{grid-template-columns:1fr;gap:28px;}
 .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
 .page-hero h1{font-size:36px;}
}
@media (max-width:768px){
 .container{padding:0 18px;}
 .section{padding:60px 0;}
 .page-hero{padding:52px 0 62px;}
 .page-hero h1{font-size:29px;line-height:1.3;}
 .hero-lead{font-size:15.5px;}
 .section-head{margin-bottom:32px;}
 .section-head h2{font-size:25px;}
 .split{grid-template-columns:1fr;gap:26px;}
 .split.reverse .split-media{order:0;}
 .split-media img{height:230px;}
 .split-body h3{font-size:21px;}
 .grid-4,.grid-3,.timeline,.news-grid,.channel-grid,.mistake-list{grid-template-columns:1fr;}
 .stat-row{grid-template-columns:1fr 1fr;}
 .faq-item{padding:2px 18px;}
 .faq-item summary{font-size:15.5px;padding:18px 30px 18px 0;}
 .faq-item summary::after{top:25px;}
 .cta-inner h2{font-size:24px;}
 .footer-grid{grid-template-columns:1fr;gap:28px;}
 .footer-bottom-inner{flex-direction:column;}
 .table-wrap{overflow-x:auto;}
 table{min-width:560px;}
}
@media (max-width:520px){
 .page-hero h1{font-size:25px;}
 .hero-badge{font-size:12px;letter-spacing:1px;}
 .btn{padding:10px 18px;font-size:14px;}
 .btn-lg{padding:12px 22px;font-size:15px;}
 .stat-row{grid-template-columns:1fr;}
 .hero-meta li{font-size:12.5px;}
 .footer-brand p{max-width:none;}
}

/* roulang page: category3 */
:root{
  --navy:#1a1f3d;
  --navy-deep:#0f1330;
  --navy-soft:#252c54;
  --gold:#ffb400;
  --gold-light:#ffd166;
  --gold-deep:#e08a00;
  --cyan:#35e0d0;
  --bg:#f4f6fb;
  --bg-alt:#eef1f9;
  --surface:#ffffff;
  --ink:#161a33;
  --ink-2:#4b5170;
  --ink-3:#8189a6;
  --line:#e1e6f2;
  --radius:12px;
  --radius-lg:20px;
  --radius-sm:8px;
  --shadow-sm:0 2px 10px rgba(20,26,60,.06);
  --shadow-md:0 12px 30px rgba(20,26,60,.10);
  --shadow-lg:0 26px 60px rgba(15,19,48,.20);
  --w:1160px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Helvetica Neue",Arial,sans-serif;
  font-size:16px;line-height:1.75;color:var(--ink);background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,figure{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;}
button,input,select,textarea{font:inherit;color:inherit;}
button{cursor:pointer;}
:focus-visible{outline:2px solid var(--gold);outline-offset:3px;border-radius:6px;}
.container{width:100%;max-width:var(--w);margin:0 auto;padding:0 24px;}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 22px;border-radius:999px;border:1px solid transparent;
  font-size:15px;font-weight:700;letter-spacing:.3px;cursor:pointer;white-space:nowrap;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease,color .18s ease,border-color .18s ease;
}
.btn-lg{padding:14px 30px;font-size:16px;}
.btn-gold{background:linear-gradient(135deg,var(--gold-light) 0%,var(--gold) 55%,var(--gold-deep) 100%);color:#241a00;box-shadow:0 8px 22px rgba(255,180,0,.32);}
.btn-gold:hover{transform:translateY(-2px);box-shadow:0 14px 30px rgba(255,180,0,.42);}
.btn-gold:active{transform:translateY(0);box-shadow:0 6px 16px rgba(255,180,0,.30);}
.btn-outline{background:transparent;color:#fff;border-color:rgba(255,255,255,.42);}
.btn-outline:hover{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.72);transform:translateY(-2px);}
.btn-ghost{background:rgba(255,255,255,.10);color:#fff;border-color:rgba(255,255,255,.16);}
.btn-ghost:hover{background:rgba(255,255,255,.20);}
.btn-line{background:#fff;color:var(--navy);border-color:var(--line);box-shadow:var(--shadow-sm);}
.btn-line:hover{border-color:var(--gold);color:var(--gold-deep);transform:translateY(-2px);}

/* 头部导航 */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(15,19,48,.94);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid rgba(255,255,255,.09);
}
.nav{display:flex;align-items:center;gap:22px;height:74px;position:relative;}
.brand{display:flex;align-items:center;gap:11px;color:#fff;font-weight:800;font-size:18px;letter-spacing:.6px;flex-shrink:0;}
.brand-mark{
  width:36px;height:36px;border-radius:11px;
  background:linear-gradient(135deg,var(--gold-light),var(--gold-deep));
  display:grid;place-items:center;color:#241a00;font-size:17px;font-weight:900;
  box-shadow:0 6px 16px rgba(255,180,0,.32);
}
.nav-links{display:flex;align-items:center;gap:4px;}
.nav-links a{
  color:rgba(255,255,255,.72);font-size:15px;font-weight:500;
  padding:9px 15px;border-radius:999px;transition:color .2s,background .2s;
}
.nav-links a:hover{color:#fff;background:rgba(255,255,255,.09);}
.nav-links a.active{
  color:#241a00;font-weight:700;
  background:linear-gradient(135deg,var(--gold-light),var(--gold));
  box-shadow:0 6px 16px rgba(255,180,0,.28);
}
.nav-actions{margin-left:auto;display:flex;align-items:center;gap:10px;}
.nav-toggle{
  display:none;margin-left:auto;width:42px;height:42px;border-radius:12px;
  background:rgba(255,255,255,.09);border:1px solid rgba(255,255,255,.14);
  flex-direction:column;justify-content:center;align-items:center;gap:5px;cursor:pointer;
}
.nav-toggle span{display:block;width:18px;height:2px;background:#fff;border-radius:2px;transition:transform .22s ease,opacity .22s ease;}

/* 板块基础 */
.section{padding:86px 0;}
.section-alt{background:var(--bg-alt);}
.section-dark{background:var(--navy-deep);color:#fff;}
.section-head{max-width:760px;margin-bottom:46px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.eyebrow{
  display:inline-block;font-size:13px;font-weight:800;letter-spacing:2px;
  color:var(--gold-deep);background:rgba(255,180,0,.14);
  padding:5px 14px;border-radius:999px;margin-bottom:16px;
}
.eyebrow.on-dark{color:var(--gold-light);background:rgba(255,180,0,.16);}
.section-head h2{font-size:32px;color:var(--navy);font-weight:800;line-height:1.35;}
.section-dark .section-head h2{color:#fff;}
.section-head p{margin-top:14px;font-size:16px;color:var(--ink-2);line-height:1.85;}
.section-dark .section-head p{color:rgba(255,255,255,.72);}

/* Hero */
.hero{
  position:relative;color:#fff;overflow:hidden;padding:70px 0 76px;
  background:
    linear-gradient(118deg,rgba(15,19,48,.97) 0%,rgba(26,31,61,.92) 52%,rgba(37,44,84,.84) 100%),
    url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
}
.hero::after{
  content:"";position:absolute;inset:auto -10% -42% -10%;height:360px;
  background:radial-gradient(60% 100% at 50% 100%,rgba(255,180,0,.16),transparent 70%);
  pointer-events:none;
}
.hero-grid{
  position:relative;z-index:2;
  display:grid;grid-template-columns:minmax(0,1.18fr) minmax(0,.82fr);
  gap:52px;align-items:center;
}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;letter-spacing:1.2px;
  color:var(--gold-light);background:rgba(255,180,0,.14);
  border:1px solid rgba(255,180,0,.34);
  padding:6px 16px;border-radius:999px;margin-bottom:20px;
}
.hero-badge::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--gold);box-shadow:0 0 10px var(--gold);}
.hero h1{
  font-size:40px;line-height:1.28;font-weight:900;letter-spacing:.4px;
  background:linear-gradient(120deg,#ffffff 0%,#ffffff 58%,var(--gold-light) 100%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-lead{margin-top:20px;font-size:16.5px;line-height:1.95;color:rgba(255,255,255,.78);max-width:620px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
.hero-metrics{
  position:relative;z-index:2;margin-top:44px;padding-top:26px;
  border-top:1px solid rgba(255,255,255,.14);
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:22px;
}
.hero-metrics strong{display:block;font-size:25px;font-weight:900;color:var(--gold-light);line-height:1.2;}
.hero-metrics span{display:block;margin-top:4px;font-size:13.5px;color:rgba(255,255,255,.62);}

/* 版本快照面板 */
.snap{
  background:linear-gradient(180deg,rgba(255,255,255,.11) 0%,rgba(255,255,255,.04) 100%);
  border:1px solid rgba(255,255,255,.16);
  border-radius:var(--radius-lg);
  padding:26px 24px;
  box-shadow:var(--shadow-lg);
  backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);
}
.snap-top{display:flex;align-items:center;justify-content:space-between;padding-bottom:16px;border-bottom:1px solid rgba(255,255,255,.14);}
.snap-top h2{font-size:15px;font-weight:700;color:#fff;letter-spacing:1px;}
.snap-live{
  font-size:12px;font-weight:800;letter-spacing:1px;color:#0d2a24;
  background:linear-gradient(135deg,#6cf0d8,var(--cyan));
  padding:3px 11px;border-radius:999px;
}
.snap-list{margin-top:8px;}
.snap-list li{
  display:flex;align-items:center;justify-content:space-between;gap:14px;
  padding:11px 0;border-bottom:1px dashed rgba(255,255,255,.12);
  font-size:14.5px;color:rgba(255,255,255,.66);
}
.snap-list li:last-child{border-bottom:0;}
.snap-list b{color:#fff;font-weight:700;letter-spacing:.3px;}
.snap-note{margin-top:14px;font-size:13px;line-height:1.7;color:rgba(255,255,255,.52);}

/* 速览要点 */
.note-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;}
.note-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:26px 24px;box-shadow:var(--shadow-sm);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.note-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:rgba(255,180,0,.5);}
.note-index{
  display:inline-flex;align-items:center;justify-content:center;
  width:38px;height:38px;border-radius:11px;font-size:14px;font-weight:900;
  color:#241a00;background:linear-gradient(135deg,var(--gold-light),var(--gold));
  margin-bottom:16px;box-shadow:0 6px 14px rgba(255,180,0,.28);
}
.note-card h3{font-size:18px;font-weight:800;color:var(--navy);margin-bottom:10px;}
.note-card p{font-size:14.6px;color:var(--ink-2);line-height:1.85;}

/* 评测维度 */
.dim-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:22px;}
.dim-card{
  grid-column:span 4;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius);padding:24px;box-shadow:var(--shadow-sm);
  transition:transform .22s ease,box-shadow .22s ease;
}
.dim-card:nth-child(1),.dim-card:nth-child(6){grid-column:span 6;}
.dim-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);}
.dim-tag{
  display:inline-block;font-size:12px;font-weight:800;letter-spacing:1px;
  color:var(--navy);background:rgba(53,224,208,.18);
  padding:3px 10px;border-radius:999px;margin-bottom:13px;
}
.dim-card h3{font-size:18px;font-weight:800;color:var(--navy);margin-bottom:9px;}
.dim-card p{font-size:14.6px;color:var(--ink-2);line-height:1.85;}

/* 实测记录 */
.feature-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:46px;align-items:center;}
.feature-media{position:relative;border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-lg);}
.feature-media img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/3;}
.feature-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(15,19,48,0) 45%,rgba(15,19,48,.72) 100%);
}
.feature-caption{
  position:absolute;left:20px;right:20px;bottom:18px;z-index:2;
  color:#fff;
}
.feature-caption strong{display:block;font-size:17px;font-weight:800;letter-spacing:.4px;}
.feature-caption span{display:block;margin-top:4px;font-size:13px;color:rgba(255,255,255,.7);}
.feature-list{margin-top:10px;}
.feature-list li{
  display:flex;gap:16px;padding:18px 0;border-bottom:1px solid var(--line);
}
.feature-list li:last-child{border-bottom:0;}
.feature-k{
  flex:0 0 auto;min-width:74px;font-size:13px;font-weight:800;letter-spacing:.6px;
  color:var(--gold-deep);padding-top:2px;
}
.feature-list h3{font-size:17px;font-weight:800;color:var(--navy);margin-bottom:6px;}
.feature-list p{font-size:14.6px;color:var(--ink-2);line-height:1.85;}

/* 差异对照表 */
.table-wrap{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow-sm);overflow-x:auto;
}
table.diff{width:100%;border-collapse:collapse;min-width:720px;}
table.diff thead th{
  text-align:left;font-size:13.5px;font-weight:800;letter-spacing:.8px;
  color:#fff;background:var(--navy);padding:15px 20px;white-space:nowrap;
}
table.diff thead th:first-child{border-top-left-radius:var(--radius);}
table.diff thead th:last-child{border-top-right-radius:var(--radius);}
table.diff tbody td{
  padding:15px 20px;font-size:14.8px;color:var(--ink-2);
  border-bottom:1px solid var(--line);vertical-align:top;
}
table.diff tbody tr:last-child td{border-bottom:0;}
table.diff tbody tr:nth-child(even){background:#fafbff;}
table.diff tbody td:first-child{color:var(--navy);font-weight:700;}
.tag-up,.tag-down,.tag-flat{
  display:inline-block;font-size:12.5px;font-weight:800;letter-spacing:.4px;
  padding:2px 11px;border-radius:999px;white-space:nowrap;
}
.tag-up{color:#8a5a00;background:rgba(255,180,0,.20);}
.tag-down{color:#0f5b52;background:rgba(53,224,208,.20);}
.tag-flat{color:var(--ink-2);background:#e8ecf7;}

/* 频道矩阵 */
.channel-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;}
.channel-card{
  position:relative;display:block;padding:28px 24px 26px;
  background:linear-gradient(160deg,var(--navy-soft) 0%,var(--navy-deep) 100%);
  border-radius:var(--radius);border:1px solid rgba(255,255,255,.10);
  color:#fff;box-shadow:var(--shadow-md);overflow:hidden;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.channel-card::after{
  content:"";position:absolute;right:-40px;top:-40px;width:130px;height:130px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,180,0,.26),transparent 70%);
}
.channel-card:hover{transform:translateY(-4px);border-color:rgba(255,180,0,.45);box-shadow:var(--shadow-lg);}
.channel-card h3{font-size:19px;font-weight:800;letter-spacing:.4px;}
.channel-card p{margin-top:10px;font-size:14.4px;line-height:1.8;color:rgba(255,255,255,.72);}
.channel-link{display:inline-block;margin-top:16px;font-size:14px;font-weight:800;color:var(--gold-light);}
.channel-card.current{border-color:rgba(255,180,0,.55);}

/* 资讯列表 */
.post-list{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;}
.post-card{
  display:flex;flex-direction:column;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--radius);padding:24px;
  box-shadow:var(--shadow-sm);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.post-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:rgba(255,180,0,.5);}
.post-meta{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:12px;}
.post-tag{
  font-size:12px;font-weight:800;letter-spacing:.6px;color:var(--gold-deep);
  background:rgba(255,180,0,.14);padding:3px 11px;border-radius:999px;
}
.post-date{font-size:12.5px;color:var(--ink-3);}
.post-card h3{font-size:17px;font-weight:800;color:var(--navy);line-height:1.55;margin-bottom:9px;}
.post-card p{font-size:14.4px;color:var(--ink-2);line-height:1.8;flex:1;}
.post-more{margin-top:16px;font-size:13.5px;font-weight:800;color:var(--gold-deep);}
.empty-note{
  background:var(--surface);border:1px dashed var(--line);border-radius:var(--radius);
  padding:36px 24px;text-align:center;color:var(--ink-3);font-size:15px;
}

/* FAQ */
.faq-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;}
.faq-item{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:20px 22px;box-shadow:var(--shadow-sm);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item[open]{border-color:rgba(255,180,0,.55);box-shadow:var(--shadow-md);}
.faq-item summary{
  list-style:none;cursor:pointer;font-size:16.5px;font-weight:800;color:var(--navy);
  display:flex;align-items:flex-start;gap:12px;line-height:1.6;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::before{
  content:"Q";flex:0 0 auto;width:24px;height:24px;border-radius:8px;
  display:grid;place-items:center;font-size:12.5px;font-weight:900;color:#241a00;
  background:linear-gradient(135deg,var(--gold-light),var(--gold));margin-top:2px;
}
.faq-item p{margin-top:12px;font-size:14.8px;color:var(--ink-2);line-height:1.9;padding-left:36px;}

/* 收口 CTA */
.cta-panel{
  position:relative;overflow:hidden;border-radius:var(--radius-lg);
  padding:52px 48px;color:#fff;
  background:
    linear-gradient(115deg,rgba(15,19,48,.96) 0%,rgba(26,31,61,.92) 60%,rgba(37,44,84,.86) 100%),
    url('/assets/images/backpic/back-5.webp') center/cover no-repeat;
  box-shadow:var(--shadow-lg);
  display:grid;grid-template-columns:minmax(0,1.3fr) minmax(0,.7fr);gap:38px;align-items:center;
}
.cta-panel h2{font-size:29px;font-weight:900;line-height:1.4;color:#fff;}
.cta-panel p{margin-top:14px;font-size:15.5px;line-height:1.9;color:rgba(255,255,255,.76);max-width:560px;}
.cta-actions{display:flex;flex-direction:column;gap:12px;}
.cta-tip{font-size:13px;color:rgba(255,255,255,.55);line-height:1.7;}

/* 页脚 */
.site-footer{background:var(--navy-deep);color:rgba(255,255,255,.72);padding-top:64px;}
.footer-grid{
  display:grid;grid-template-columns:minmax(0,1.5fr) repeat(3,minmax(0,1fr));
  gap:40px;padding-bottom:52px;
}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand p{font-size:14.5px;line-height:1.9;color:rgba(255,255,255,.60);max-width:340px;}
.footer-col h4{font-size:15px;font-weight:800;color:#fff;margin-bottom:16px;letter-spacing:.6px;}
.footer-col ul li{font-size:14px;line-height:1.8;padding:5px 0;color:rgba(255,255,255,.60);}
.footer-col ul li a{transition:color .2s ease;}
.footer-col ul li a:hover{color:var(--gold-light);}
.footer-bottom{border-top:1px solid rgba(255,255,255,.10);padding:22px 0;background:rgba(0,0,0,.18);}
.footer-bottom-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;}
.footer-bottom p{font-size:13.5px;color:rgba(255,255,255,.50);}

/* 响应式 */
@media (max-width:1024px){
  .hero-grid{grid-template-columns:1fr;gap:36px;}
  .hero h1{font-size:34px;}
  .hero-metrics{grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;}
  .note-grid{grid-template-columns:1fr 1fr;}
  .dim-card,.dim-card:nth-child(1),.dim-card:nth-child(6){grid-column:span 6;}
  .feature-grid{grid-template-columns:1fr;gap:32px;}
  .channel-grid{grid-template-columns:1fr 1fr;}
  .post-list{grid-template-columns:1fr 1fr;}
  .cta-panel{grid-template-columns:1fr;padding:40px 32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .nav-actions{display:none;}
  .nav-toggle{display:flex;}
  .nav-links{
    position:absolute;top:100%;left:0;right:0;flex-direction:column;align-items:stretch;
    gap:4px;padding:14px 18px 18px;display:none;
    background:rgba(15,19,48,.98);border-bottom:1px solid rgba(255,255,255,.10);
    box-shadow:0 22px 44px rgba(0,0,0,.35);
  }
  .nav-links.open{display:flex;}
  .nav-links a{padding:12px 16px;border-radius:10px;font-size:15.5px;}
  .nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg);}
  .nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
  .nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}
}
@media (max-width:768px){
  .section{padding:60px 0;}
  .hero{padding:52px 0 58px;}
  .hero h1{font-size:29px;}
  .hero-lead{font-size:15.5px;}
  .section-head h2{font-size:25px;}
  .note-grid,.channel-grid,.post-list,.faq-list{grid-template-columns:1fr;}
  .dim-card,.dim-card:nth-child(1),.dim-card:nth-child(6){grid-column:span 12;}
  .snap{padding:22px 20px;}
  .cta-panel h2{font-size:24px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom-inner{flex-direction:column;align-items:flex-start;gap:8px;}
}
@media (max-width:520px){
  .container{padding:0 18px;}
  .brand-text{font-size:16px;}
  .hero h1{font-size:25px;line-height:1.35;}
  .hero-metrics{grid-template-columns:1fr 1fr;gap:14px;}
  .hero-metrics strong{font-size:21px;}
  .btn{width:100%;}
  .hero-actions,.cta-actions{flex-direction:column;}
  .feature-k{min-width:62px;font-size:12.5px;}
  .cta-panel{padding:32px 22px;}
  table.diff{min-width:640px;}
}