/* roulang page: index */
:root{
  --bg:#050b18;
  --bg-soft:#081225;
  --panel:rgba(17,31,56,.72);
  --panel-strong:rgba(11,21,40,.92);
  --line:rgba(120,170,255,.16);
  --line-strong:rgba(120,196,255,.42);
  --text:#e8f1ff;
  --muted:#9db0cc;
  --primary:#31e0ff;
  --primary-deep:#0aa7cf;
  --accent:#7b5cff;
  --warm:#ffd166;
  --radius:14px;
  --radius-sm:10px;
  --shadow:0 18px 40px rgba(2,8,20,.55);
  --shadow-hover:0 26px 52px rgba(2,8,20,.75);
  --container:1180px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:82px}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:15px;
  line-height:1.78;
  color:var(--text);
  background:
    radial-gradient(1100px 560px at 82% -8%,rgba(49,224,255,.14),transparent 62%),
    radial-gradient(900px 520px at 2% 8%,rgba(123,92,255,.16),transparent 58%),
    var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
p{margin:0 0 12px}
h1,h2,h3,h4{margin:0;line-height:1.35;font-weight:700}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit}
input{font-family:inherit}
a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(5,11,24,.82);
  -webkit-backdrop-filter:blur(16px);
  backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease,background .25s ease;
}
.site-header.is-scrolled{box-shadow:0 14px 34px rgba(0,0,0,.5);background:rgba(5,11,24,.94)}
.header-inner{display:flex;align-items:center;gap:20px;height:64px;position:relative}
.brand{display:flex;align-items:center;gap:10px;font-size:16px;font-weight:700;letter-spacing:.4px;white-space:nowrap}
.brand-mark{
  width:26px;height:26px;border-radius:9px;flex:0 0 auto;
  background:linear-gradient(135deg,var(--primary),var(--accent));
  box-shadow:0 0 16px rgba(49,224,255,.62);
  position:relative;
}
.brand-mark::after{content:"";position:absolute;inset:7px;border-radius:50%;background:#04101f}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-link{
  padding:8px 13px;border-radius:9px;font-size:14px;color:var(--muted);
  border:1px solid transparent;transition:color .2s ease,background .2s ease,border-color .2s ease;
  white-space:nowrap;
}
.nav-link:hover{color:#fff;background:rgba(49,224,255,.1);border-color:rgba(49,224,255,.22)}
.nav-link.active{color:#fff;background:rgba(49,224,255,.15);border-color:rgba(49,224,255,.4);box-shadow:0 0 18px rgba(49,224,255,.18)}
.header-actions{display:flex;align-items:center;gap:10px}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:11px;cursor:pointer;
  background:rgba(255,255,255,.04);border:1px solid var(--line);
  padding:0;align-items:center;justify-content:center;flex-direction:column;gap:4px;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:#cfe3ff;transition:.2s}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

/* ============ 按钮与标签 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;min-height:44px;border-radius:9px;
  font-size:14px;font-weight:600;letter-spacing:.3px;
  border:1px solid transparent;cursor:pointer;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,border-color .2s ease,color .2s ease;
}
.btn-primary{
  background:linear-gradient(135deg,var(--primary),#2b9cff);
  color:#02131f;
  box-shadow:0 0 0 1px rgba(49,224,255,.42),0 12px 28px rgba(20,160,220,.36);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 0 0 1px rgba(49,224,255,.75),0 18px 38px rgba(20,160,220,.55)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:rgba(255,255,255,.04);border-color:rgba(160,200,255,.28);color:#dce9ff}
.btn-ghost:hover{border-color:var(--primary);color:#fff;background:rgba(49,224,255,.1);transform:translateY(-2px)}
.btn-sm{padding:9px 16px;min-height:40px;font-size:13px}
.pill{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;font-size:12.5px;letter-spacing:.6px;
  color:#bfe9ff;background:rgba(49,224,255,.1);
  border:1px solid rgba(49,224,255,.3);
}
.pill .dot-live{width:7px;height:7px;border-radius:50%;background:var(--primary);box-shadow:0 0 10px var(--primary)}
.tag{
  display:inline-flex;align-items:center;
  padding:4px 10px;border-radius:7px;font-size:12px;
  color:#9fd9ff;background:rgba(49,224,255,.09);
  border:1px solid rgba(49,224,255,.22);
}
.badge{
  display:inline-flex;align-items:center;padding:3px 9px;border-radius:6px;
  font-size:11.5px;letter-spacing:.5px;color:#ffe6a8;
  background:rgba(255,209,102,.12);border:1px solid rgba(255,209,102,.32);
}

/* ============ 通用板块 ============ */
.section{padding:62px 0;position:relative}
.section.alt{
  background:linear-gradient(180deg,rgba(9,18,34,.72),rgba(6,13,26,.86));
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:26px;margin-bottom:30px;flex-wrap:wrap}
.eyebrow{display:inline-flex;align-items:center;gap:9px;font-size:12px;letter-spacing:2.4px;color:var(--primary);font-weight:600}
.eyebrow::before{content:"";width:22px;height:2px;border-radius:2px;background:linear-gradient(90deg,var(--primary),transparent)}
.section h2{font-size:26px;margin-top:10px;letter-spacing:.4px}
.section-desc{color:var(--muted);font-size:14px;max-width:430px;margin:0}
.section-desc strong{color:#cfe9ff;font-weight:600}

/* ============ Hero ============ */
.hero{position:relative;overflow:hidden;padding:66px 0 58px;border-bottom:1px solid var(--line)}
.hero-bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
  opacity:.36;
}
.hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(180deg,rgba(5,11,24,.58) 0%,rgba(5,11,24,.86) 58%,#050b18 100%);
}
.hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.12fr .88fr;gap:44px;align-items:center}
.hero h1{font-size:40px;line-height:1.28;letter-spacing:.6px;margin:18px 0 16px}
.hero h1 em{font-style:normal;color:var(--primary);text-shadow:0 0 26px rgba(49,224,255,.45)}
.hero-sub{color:#c3d3ea;font-size:15px;max-width:660px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin:26px 0 22px}
.hero-tags{display:flex;flex-wrap:wrap;gap:9px}
.hero-tags .tag{padding:6px 13px;font-size:12.5px}

.hero-panel{
  border-radius:18px;padding:26px;
  background:linear-gradient(160deg,rgba(24,44,78,.78),rgba(9,17,33,.9));
  border:1px solid rgba(120,196,255,.24);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  box-shadow:0 24px 60px rgba(2,8,20,.62),inset 0 1px 0 rgba(255,255,255,.06);
}
.panel-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:18px}
.panel-head h2{font-size:16px;letter-spacing:.6px}
.version-track{display:flex;flex-direction:column;gap:0}
.version-track li{display:flex;gap:14px;position:relative;padding-bottom:20px}
.version-track li:last-child{padding-bottom:0}
.version-track li::before{
  content:"";position:absolute;left:6px;top:16px;bottom:0;width:1px;
  background:linear-gradient(180deg,rgba(49,224,255,.45),rgba(120,170,255,.12));
}
.version-track li:last-child::before{display:none}
.version-track .dot{
  width:13px;height:13px;border-radius:50%;flex:0 0 auto;margin-top:5px;
  background:rgba(120,170,255,.24);border:1px solid rgba(120,170,255,.5);
}
.version-track li.done .dot{background:var(--primary-deep);border-color:var(--primary);box-shadow:0 0 12px rgba(49,224,255,.6)}
.version-track li.current .dot{background:var(--primary);border-color:#bff3ff;box-shadow:0 0 16px rgba(49,224,255,.9)}
.version-track strong{display:block;font-size:14px;letter-spacing:.4px}
.version-track em{font-style:normal;display:block;font-size:12.5px;color:var(--muted);margin-top:3px}
.subscribe{margin-top:22px;padding-top:20px;border-top:1px solid var(--line)}
.subscribe label{display:block;font-size:13px;color:#c3d3ea;margin-bottom:10px}
.sub-row{display:flex;gap:9px}
.sub-row input{
  flex:1;min-width:0;padding:11px 13px;min-height:40px;border-radius:9px;
  background:rgba(4,10,22,.7);border:1px solid var(--line);color:var(--text);font-size:13.5px;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.sub-row input::placeholder{color:#6c7f9c}
.sub-row input:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(49,224,255,.14);outline:none}
.form-hint{margin:10px 0 0;font-size:12px;color:#7d90ad}

/* ============ 快速搜索 ============ */
.quick-wrap{
  display:grid;grid-template-columns:.9fr 1.1fr;gap:26px;align-items:center;
  padding:26px 28px;border-radius:var(--radius);
  background:linear-gradient(150deg,rgba(20,38,68,.8),rgba(9,17,33,.9));
  border:1px solid var(--line);box-shadow:var(--shadow);
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
}
.quick-copy h2{font-size:19px;margin-bottom:8px}
.quick-copy p{color:var(--muted);font-size:13.5px;margin:0}
.search-box{
  display:flex;align-items:center;gap:10px;padding:7px 8px 7px 14px;
  border-radius:11px;background:rgba(4,10,22,.75);
  border:1px solid var(--line);transition:border-color .2s ease,box-shadow .2s ease;
}
.search-box:focus-within{border-color:var(--primary);box-shadow:0 0 0 3px rgba(49,224,255,.12)}
.search-box .ico{flex:0 0 auto;color:#6f88ab}
.search-box input{
  flex:1;min-width:0;background:transparent;border:0;color:var(--text);
  font-size:14px;padding:8px 0;
}
.search-box input::placeholder{color:#6c7f9c}
.search-box input:focus{outline:none}
.quick-tags{display:flex;flex-wrap:wrap;gap:9px;margin-top:16px;grid-column:1/-1}
.quick-tags a{
  padding:5px 12px;border-radius:8px;font-size:12.5px;color:#a9c4e6;
  background:rgba(255,255,255,.04);border:1px solid var(--line);
  transition:.2s;
}
.quick-tags a:hover{color:#fff;border-color:rgba(49,224,255,.45);background:rgba(49,224,255,.1)}

/* ============ 卡片 ============ */
.card{
  position:relative;overflow:hidden;
  padding:22px;border-radius:var(--radius);
  background:linear-gradient(180deg,rgba(19,35,62,.86),rgba(9,17,33,.92));
  border:1px solid var(--line);box-shadow:var(--shadow);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.card::before{
  content:"";position:absolute;left:0;right:0;top:0;height:2px;
  background:linear-gradient(90deg,transparent,rgba(49,224,255,.6),transparent);
  opacity:0;transition:opacity .2s ease;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:var(--line-strong)}
.card:hover::before{opacity:1}
.card h3{font-size:16.5px;margin-bottom:9px;letter-spacing:.3px}
.card p{color:var(--muted);font-size:13.5px;margin:0 0 14px}
.ico{width:20px;height:20px;stroke:currentColor;fill:none;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}
.icon-box{
  width:42px;height:42px;border-radius:12px;display:inline-flex;align-items:center;justify-content:center;
  color:var(--primary);background:rgba(49,224,255,.1);
  border:1px solid rgba(49,224,255,.26);margin-bottom:14px;
}
.card-foot{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap}

.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}

/* 频道矩阵 */
.channel-card{padding:26px}
.channel-card h3{font-size:18px}
.channel-link{
  display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:600;
  color:var(--primary);transition:gap .2s ease;
}
.channel-card:hover .channel-link{gap:11px}

/* 精选清单 */
.pick-card{padding:0;display:flex;flex-direction:column}
.pick-card .thumb{aspect-ratio:16/9;overflow:hidden;background:#0a1526}
.pick-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.pick-card:hover .thumb img{transform:scale(1.05)}
.pick-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1}
.pick-body p{margin-bottom:14px}
.pick-meta{margin-top:auto;display:flex;gap:8px;flex-wrap:wrap}

/* 版本时间线 */
.timeline{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.timeline .card{padding-top:26px}
.tl-ver{
  display:inline-flex;align-items:center;gap:8px;font-size:12px;letter-spacing:1px;
  color:var(--warm);margin-bottom:10px;
}
.tl-ver::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--warm);box-shadow:0 0 12px rgba(255,209,102,.8)}
.tl-list{margin-top:12px;display:flex;flex-direction:column;gap:9px}
.tl-list li{
  display:flex;gap:9px;font-size:13px;color:var(--muted);
  padding-left:14px;position:relative;
}
.tl-list li::before{
  content:"";position:absolute;left:0;top:10px;width:5px;height:5px;border-radius:50%;
  background:rgba(49,224,255,.7);
}

/* 排行 */
.rank-list{display:flex;flex-direction:column;gap:12px}
.rank-item{
  display:grid;grid-template-columns:44px 1fr auto;gap:16px;align-items:center;
  padding:16px 20px;border-radius:12px;
  background:linear-gradient(90deg,rgba(19,35,62,.8),rgba(9,17,33,.7));
  border:1px solid var(--line);
  transition:transform .2s ease,border-color .2s ease,background .2s ease;
}
.rank-item:hover{transform:translateX(4px);border-color:var(--line-strong);background:linear-gradient(90deg,rgba(24,46,80,.9),rgba(9,17,33,.8))}
.rank-no{
  width:36px;height:36px;border-radius:10px;display:flex;align-items:center;justify-content:center;
  font-weight:700;font-size:14px;color:#062033;
  background:linear-gradient(135deg,var(--primary),#2b9cff);
  box-shadow:0 0 16px rgba(49,224,255,.35);
}
.rank-item:nth-child(n+4) .rank-no{
  background:rgba(49,224,255,.1);color:var(--primary);
  border:1px solid rgba(49,224,255,.28);box-shadow:none;
}
.rank-main strong{display:block;font-size:15px;margin-bottom:3px}
.rank-main span{font-size:12.8px;color:var(--muted)}
.rank-score{font-size:13px;color:#bfe9ff;font-weight:600;white-space:nowrap}

/* 资源中心 */
.resource-wrap{
  position:relative;overflow:hidden;border-radius:18px;
  padding:38px;border:1px solid var(--line);
  background-image:url('/assets/images/backpic/back-3.webp');
  background-size:cover;background-position:center;
  box-shadow:var(--shadow);
}
.resource-wrap::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(120deg,rgba(5,11,24,.94) 20%,rgba(8,20,40,.78) 100%);
}
.resource-inner{position:relative;z-index:2;display:grid;grid-template-columns:.85fr 1.15fr;gap:34px;align-items:center}
.resource-inner h2{font-size:25px;margin:10px 0 14px}
.resource-inner p{color:#b8cbe4;font-size:14px}
.res-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
.res-item{
  padding:16px 18px;border-radius:12px;
  background:rgba(9,20,38,.78);border:1px solid var(--line);
  -webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);
  transition:border-color .2s ease,transform .2s ease;
}
.res-item:hover{border-color:rgba(49,224,255,.42);transform:translateY(-3px)}
.res-item strong{display:block;font-size:14px;margin-bottom:4px}
.res-item span{font-size:12.5px;color:var(--muted)}

/* 能力矩阵 */
.feature-item{display:flex;gap:14px;align-items:flex-start;padding:20px;border-radius:12px;background:rgba(14,27,50,.66);border:1px solid var(--line);transition:.2s}
.feature-item:hover{border-color:var(--line-strong);background:rgba(20,38,68,.78);transform:translateY(-3px)}
.feature-item .icon-box{width:38px;height:38px;margin:0;flex:0 0 auto;border-radius:10px}
.feature-item h3{font-size:14.5px;margin-bottom:5px}
.feature-item p{font-size:13px;color:var(--muted);margin:0}

/* 场景 */
.scene-card{padding:24px;border-radius:12px;background:linear-gradient(180deg,rgba(19,35,62,.8),rgba(9,17,33,.9));border:1px solid var(--line);transition:.2s}
.scene-card:hover{border-color:var(--line-strong);transform:translateY(-3px)}
.scene-card h3{font-size:15.5px;margin-bottom:8px}
.scene-card p{font-size:13.2px;color:var(--muted);margin:0}
.scene-tag{margin-bottom:12px}

/* 数据条 */
.stats{
  display:grid;grid-template-columns:repeat(4,1fr);gap:18px;
  padding:30px;border-radius:16px;
  background:linear-gradient(120deg,rgba(18,36,66,.9),rgba(9,18,34,.86));
  border:1px solid rgba(120,196,255,.24);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06);
}
.stat-item{text-align:center;padding:8px 12px;border-right:1px solid rgba(120,170,255,.14)}
.stat-item:last-child{border-right:0}
.stat-num{font-size:30px;font-weight:700;letter-spacing:.5px;color:#fff;text-shadow:0 0 22px rgba(49,224,255,.4)}
.stat-num small{font-size:14px;color:var(--primary);margin-left:2px;font-weight:600}
.stat-label{font-size:12.8px;color:var(--muted);margin-top:4px}

/* 资讯列表 */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.news-card{
  border-radius:var(--radius);border:1px solid var(--line);
  background:linear-gradient(180deg,rgba(19,35,62,.82),rgba(9,17,33,.9));
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
  box-shadow:var(--shadow);
}
.news-card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--shadow-hover)}
.news-link{display:flex;flex-direction:column;height:100%;padding:22px}
.news-link h3{font-size:15.5px;margin-bottom:10px;transition:color .2s ease}
.news-card:hover h3{color:var(--primary)}
.news-link p{
  font-size:13.2px;color:var(--muted);margin:0 0 16px;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;
  font-size:12px;color:#7d90ad;border-top:1px solid var(--line);padding-top:12px;
}
.news-meta span{color:#9fd9ff}
.empty-note{
  padding:34px;border-radius:var(--radius);text-align:center;
  color:var(--muted);font-size:14px;background:rgba(14,27,50,.6);border:1px dashed var(--line);
}

/* 口碑 */
.voice{
  padding:24px;border-radius:12px;border:1px solid var(--line);
  background:linear-gradient(180deg,rgba(18,34,62,.78),rgba(9,17,33,.88));
  transition:.2s;
}
.voice:hover{border-color:var(--line-strong);transform:translateY(-3px)}
.voice p{font-size:13.6px;color:#c8d8ee;margin:0 0 16px}
.voice-user{display:flex;align-items:center;gap:11px}
.avatar{
  width:36px;height:36px;border-radius:50%;flex:0 0 auto;
  display:flex;align-items:center;justify-content:center;
  font-size:13px;font-weight:700;color:#04121f;
  background:linear-gradient(135deg,var(--primary),var(--accent));
}
.voice-user strong{display:block;font-size:13.5px}
.voice-user span{font-size:12px;color:#7d90ad}

/* 三步上手 */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;counter-reset:step}
.step-item{
  position:relative;padding:26px 22px 22px;border-radius:var(--radius);
  background:linear-gradient(180deg,rgba(19,35,62,.8),rgba(9,17,33,.9));
  border:1px solid var(--line);transition:.2s;
}
.step-item:hover{border-color:var(--line-strong);transform:translateY(-3px)}
.step-item::before{
  counter-increment:step;content:"0" counter(step);
  display:inline-flex;align-items:center;justify-content:center;
  width:38px;height:38px;border-radius:11px;margin-bottom:14px;
  font-size:14px;font-weight:700;color:#04121f;
  background:linear-gradient(135deg,var(--primary),#2b9cff);
  box-shadow:0 0 18px rgba(49,224,255,.35);
}
.step-item h3{font-size:15.5px;margin-bottom:8px}
.step-item p{font-size:13.2px;color:var(--muted);margin:0}

/* 收口 CTA */
.cta-band{
  position:relative;overflow:hidden;border-radius:18px;padding:44px 42px;
  border:1px solid rgba(120,196,255,.3);
  background-image:url('/assets/images/backpic/back-5.webp');
  background-size:cover;background-position:center;
  box-shadow:0 26px 60px rgba(2,8,20,.7);
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(110deg,rgba(4,10,22,.95) 25%,rgba(10,26,52,.72) 100%);
}
.cta-inner{position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap}
.cta-inner h2{font-size:27px;margin:12px 0 12px;letter-spacing:.5px}
.cta-inner p{color:#b8cbe4;font-size:14px;max-width:600px;margin:0}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}

/* ============ 页脚 ============ */
.site-footer{
  margin-top:0;padding:52px 0 26px;
  background:linear-gradient(180deg,rgba(6,13,26,.6),rgba(4,9,18,.98));
  border-top:1px solid var(--line);
}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:40px;padding-bottom:34px}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:16px;font-weight:700;margin-bottom:14px}
.footer-brand .brand-mark{width:24px;height:24px}
.footer-brand .brand-mark::after{inset:6px}
.footer-about{color:var(--muted);font-size:13.4px;max-width:380px;margin:0}
.footer-col h4{font-size:13.5px;letter-spacing:1.2px;color:#cfe3ff;margin-bottom:16px;font-weight:600}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a{font-size:13.4px;color:var(--muted);transition:color .2s ease,padding-left .2s ease}
.footer-col a:hover{color:var(--primary);padding-left:4px}
.footer-bottom{
  border-top:1px solid var(--line);padding-top:20px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:12.6px;color:#7d90ad;
}
.footer-bottom a{color:#9db0cc}
.footer-bottom a:hover{color:var(--primary)}

/* ============ 响应式 ============ */
@media (max-width:1080px){
  .hero-inner{grid-template-columns:1fr;gap:34px}
  .hero h1{font-size:34px}
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .stats{grid-template-columns:repeat(2,1fr)}
  .stat-item:nth-child(2){border-right:0}
  .stat-item:nth-child(1),.stat-item:nth-child(2){border-bottom:1px solid rgba(120,170,255,.14);padding-bottom:18px}
  .resource-inner{grid-template-columns:1fr;gap:26px}
}
@media (max-width:900px){
  .nav-toggle{display:inline-flex}
  .main-nav{
    position:absolute;top:64px;left:0;right:0;
    display:none;flex-direction:column;align-items:stretch;gap:4px;margin:0;
    padding:12px 20px 18px;
    background:rgba(6,14,28,.98);
    border-bottom:1px solid var(--line);
    box-shadow:0 22px 40px rgba(0,0,0,.55);
  }
  .main-nav.is-open{display:flex}
  .nav-link{padding:12px 14px;min-height:44px;display:flex;align-items:center;font-size:14.5px}
  .header-inner{gap:12px}
  .grid-3,.timeline,.news-grid,.steps{grid-template-columns:repeat(2,1fr)}
  .grid-2{grid-template-columns:1fr}
  .quick-wrap{grid-template-columns:1fr;padding:22px}
  .quick-tags{grid-column:auto}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .footer-about{max-width:none}
}
@media (max-width:640px){
  .container{padding:0 18px}
  .section{padding:46px 0}
  .hero{padding:44px 0 40px}
  .hero h1{font-size:25px;line-height:1.36}
  .hero-sub{font-size:14px}
  .hero-actions .btn{flex:1 1 auto}
  .hero-panel{padding:20px}
  .grid-3,.grid-4,.timeline,.news-grid,.steps,.res-grid{grid-template-columns:1fr}
  .stats{grid-template-columns:1fr;padding:22px}
  .stat-item{border-right:0;border-bottom:1px solid rgba(120,170,255,.14);padding:14px 8px}
  .stat-item:last-child{border-bottom:0}
  .stat-num{font-size:26px}
  .section h2{font-size:21px}
  .resource-wrap{padding:26px 20px}
  .cta-band{padding:30px 22px}
  .cta-inner h2{font-size:22px}
  .rank-item{grid-template-columns:36px 1fr;gap:12px;padding:14px 16px}
  .rank-score{grid-column:2;font-size:12.5px}
  .footer-grid{grid-template-columns:1fr;gap:24px}
  .sub-row{flex-direction:column}
  .sub-row .btn{width:100%}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important}
  html{scroll-behavior:auto}
}

/* roulang page: article */
:root{
 --bg:#050b18;
 --bg-soft:#081225;
 --panel:rgba(17,31,56,.72);
 --panel-strong:rgba(11,21,40,.92);
 --line:rgba(120,170,255,.16);
 --line-strong:rgba(120,196,255,.42);
 --text:#e8f1ff;
 --muted:#9db0cc;
 --primary:#31e0ff;
 --primary-deep:#0aa7cf;
 --accent:#7b5cff;
 --warm:#ffd166;
 --radius:14px;
 --radius-sm:10px;
 --shadow:0 18px 40px rgba(2,8,20,.55);
 --shadow-hover:0 26px 52px rgba(2,8,20,.75);
 --container:1180px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:82px}
body{
 margin:0;
 font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",sans-serif;
 font-size:15px;
 line-height:1.78;
 color:var(--text);
 background:
 radial-gradient(1100px 560px at 82% -8%,rgba(49,224,255,.14),transparent 62%),
 radial-gradient(900px 520px at 2% 8%,rgba(123,92,255,.16),transparent 58%),
 var(--bg);
 -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button{font-family:inherit}
input{font-family:inherit}
a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
/* ================= 顶部导航 ================= */
.site-header{
 position:sticky;top:0;z-index:80;
 background:rgba(5,11,24,.82);
 -webkit-backdrop-filter:blur(16px);
 backdrop-filter:blur(16px);
 border-bottom:1px solid var(--line);
 transition:box-shadow .25s ease,background .25s ease;
}
.site-header.is-scrolled{box-shadow:0 14px 34px rgba(0,0,0,.5);background:rgba(5,11,24,.94)}
.header-inner{display:flex;align-items:center;gap:20px;height:64px;position:relative}
.brand{display:flex;align-items:center;gap:10px;font-size:16px;font-weight:700;letter-spacing:.4px;white-space:nowrap}
.brand-mark{
 width:26px;height:26px;border-radius:9px;flex:0 0 auto;
 background:linear-gradient(135deg,var(--primary),var(--accent));
 box-shadow:0 0 16px rgba(49,224,255,.62);
 position:relative;
}
.brand-mark::after{content:"";position:absolute;inset:7px;border-radius:50%;background:#04101f}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-link{
 padding:8px 13px;border-radius:9px;font-size:14px;color:var(--muted);
 border:1px solid transparent;transition:color .2s ease,background .2s ease,border-color .2s ease;
 white-space:nowrap;
}
.nav-link:hover{color:#fff;background:rgba(49,224,255,.1);border-color:rgba(49,224,255,.22)}
.nav-link.active{color:#fff;background:rgba(49,224,255,.15);border-color:rgba(49,224,255,.4);box-shadow:0 0 18px rgba(49,224,255,.18)}
.header-actions{display:flex;align-items:center;gap:10px}
.nav-toggle{
 display:none;width:42px;height:42px;border-radius:11px;cursor:pointer;
 background:rgba(255,255,255,.04);border:1px solid var(--line);
 padding:0;align-items:center;justify-content:center;flex-direction:column;gap:4px;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:#cfe3ff;transition:.2s}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
/* ================= 按钮与标签 ================= */
.btn{
 display:inline-flex;align-items:center;justify-content:center;gap:8px;
 padding:12px 22px;min-height:44px;border-radius:9px;
 font-size:14px;font-weight:600;letter-spacing:.3px;
 border:1px solid transparent;cursor:pointer;
 transition:transform .2s ease,box-shadow .2s ease,background .2s ease,border-color .2s ease,color .2s ease;
}
.btn-primary{
 background:linear-gradient(135deg,var(--primary),#2b9cff);
 color:#02131f;
 box-shadow:0 0 0 1px rgba(49,224,255,.42),0 12px 28px rgba(20,160,220,.36);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 0 0 1px rgba(49,224,255,.75),0 18px 38px rgba(20,160,220,.55)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:rgba(255,255,255,.04);border-color:rgba(160,200,255,.28);color:#dce9ff}
.btn-ghost:hover{border-color:var(--primary);color:#fff;background:rgba(49,224,255,.1);transform:translateY(-2px)}
.btn-sm{padding:9px 16px;min-height:40px;font-size:13px}
.pill{
 display:inline-flex;align-items:center;gap:8px;
 padding:6px 14px;border-radius:999px;font-size:12.5px;letter-spacing:.6px;
 color:#bfe9ff;background:rgba(49,224,255,.1);
 border:1px solid rgba(49,224,255,.3);
}
.pill .dot-live{width:7px;height:7px;border-radius:50%;background:var(--primary);box-shadow:0 0 10px var(--primary)}
.tag{
 display:inline-flex;align-items:center;
 padding:4px 10px;border-radius:7px;font-size:12px;
 color:#9fd9ff;background:rgba(49,224,255,.09);
 border:1px solid rgba(49,224,255,.22);
}
.badge{
 display:inline-flex;align-items:center;padding:3px 9px;border-radius:6px;
 font-size:11.5px;letter-spacing:.5px;color:#ffe6a8;
 background:rgba(255,209,102,.12);border:1px solid rgba(255,209,102,.32);
}
/* ================= 通用板块 ================= */
.section{padding:62px 0;position:relative}
.section.alt{
 background:linear-gradient(180deg,rgba(9,18,34,.72),rgba(6,13,26,.86));
 border-top:1px solid var(--line);
 border-bottom:1px solid var(--line);
}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:26px;margin-bottom:30px;flex-wrap:wrap}
.eyebrow{display:inline-flex;align-items:center;gap:9px;font-size:12px;letter-spacing:2.4px;color:var(--primary);font-weight:600}
.eyebrow::before{content:"";width:22px;height:2px;border-radius:2px;background:linear-gradient(90deg,var(--primary),transparent)}
.section h2{font-size:26px;margin:10px 0 0;letter-spacing:.4px;line-height:1.4}
.section-desc{color:var(--muted);font-size:14px;max-width:460px;margin:0}
.section-desc strong{color:#cfe9ff;font-weight:600}
/* ================= 文章头部 ================= */
.article-hero{position:relative;overflow:hidden;padding:44px 0 42px;border-bottom:1px solid var(--line)}
.article-hero .hero-bg{
 position:absolute;inset:0;
 background-image:url('/assets/images/backpic/back-2.webp');
 background-size:cover;background-position:center;
 opacity:.24;
}
.article-hero::after{
 content:"";position:absolute;inset:0;pointer-events:none;
 background:linear-gradient(180deg,rgba(5,11,24,.7) 0%,rgba(5,11,24,.92) 62%,#050b18 100%);
}
.article-hero .container{position:relative;z-index:2}
.crumbs{display:flex;align-items:center;gap:9px;flex-wrap:wrap;font-size:13px;color:var(--muted)}
.crumbs a{transition:color .2s ease}
.crumbs a:hover{color:var(--primary)}
.crumbs .sep{opacity:.45}
.article-hero h1{font-size:34px;line-height:1.36;letter-spacing:.5px;margin:16px 0 16px;max-width:940px}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px 20px;font-size:13px;color:var(--muted)}
.meta-item{display:inline-flex;align-items:center;gap:8px}
.meta-dot{width:6px;height:6px;border-radius:50%;background:var(--primary);box-shadow:0 0 9px var(--primary)}
/* ================= 正文卡 ================= */
.reading-wrap{max-width:900px;margin:0 auto}
.article-card{
 background:var(--panel-strong);
 border:1px solid var(--line);
 border-radius:var(--radius);
 box-shadow:var(--shadow);
 padding:36px 38px;
}
.article-body{font-size:16px;line-height:1.85;color:#d6e5fb}
.article-body > *:first-child{margin-top:0}
.article-body > *:last-child{margin-bottom:0}
.article-body p{margin:0 0 18px}
.article-body h2{font-size:23px;color:#ffffff;margin:34px 0 16px;line-height:1.5;padding-left:14px;border-left:4px solid var(--primary)}
.article-body h3{font-size:18px;color:#eaf4ff;margin:26px 0 12px;line-height:1.55}
.article-body h4{font-size:16px;color:#dff0ff;margin:20px 0 10px}
.article-body ul,.article-body ol{margin:0 0 18px;padding-left:22px;color:#c3d6f0}
.article-body li+li{margin-top:8px}
.article-body a{color:var(--primary);border-bottom:1px dashed rgba(49,224,255,.45);transition:color .2s ease,border-color .2s ease}
.article-body a:hover{color:#8bf0ff;border-color:#8bf0ff}
.article-body img{border-radius:var(--radius-sm);margin:24px auto;box-shadow:var(--shadow)}
.article-body blockquote{
 margin:24px 0;padding:16px 20px;color:#cbd9f2;
 background:rgba(123,92,255,.12);
 border-left:3px solid var(--accent);
 border-radius:0 10px 10px 0;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body table{width:100%;border-collapse:collapse;font-size:14px;margin:22px 0;display:block;overflow-x:auto}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 12px;text-align:left;white-space:nowrap}
.article-body th{background:rgba(49,224,255,.08);color:#dff2ff;font-weight:600}
.article-body code{background:rgba(49,224,255,.1);padding:2px 6px;border-radius:5px;font-size:13.5px;color:#9fe6ff}
.article-body hr{border:0;border-top:1px solid var(--line);margin:28px 0}
.empty-state{text-align:center;padding:56px 20px}
.empty-state .empty-icon{
 width:60px;height:60px;margin:0 auto 18px;border-radius:18px;
 background:rgba(49,224,255,.1);border:1px solid rgba(49,224,255,.3);
 display:flex;align-items:center;justify-content:center;color:var(--primary);font-size:24px;font-weight:700;
}
.empty-state h2{font-size:22px;margin:0 0 12px;border:0;padding:0}
.empty-state p{color:var(--muted);font-size:14px;margin:0 0 22px}
/* ================= 卡片网格 ================= */
.grid{display:grid;gap:20px}
.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}
.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}
.card{
 position:relative;
 background:var(--panel);
 border:1px solid var(--line);
 border-radius:var(--radius);
 padding:22px 22px 20px;
 -webkit-backdrop-filter:blur(12px);
 backdrop-filter:blur(12px);
 transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease,background .22s ease;
}
.card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--shadow-hover);background:rgba(21,38,68,.86)}
.card-icon{
 width:38px;height:38px;border-radius:11px;
 display:flex;align-items:center;justify-content:center;
 background:rgba(49,224,255,.12);border:1px solid rgba(49,224,255,.3);
 color:var(--primary);margin-bottom:14px;
}
.card-icon svg{width:19px;height:19px;stroke:currentColor;fill:none;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.card h3{font-size:16.5px;margin:0 0 10px;color:#f0f7ff;line-height:1.5}
.card p{margin:0 0 14px;font-size:13.8px;color:var(--muted);line-height:1.78}
.card p:last-child{margin-bottom:0}
.card .tag-row{display:flex;flex-wrap:wrap;gap:8px}
/* ================= 频道入口卡 ================= */
.channel-card{display:flex;flex-direction:column;gap:12px;text-decoration:none}
.channel-card .channel-top{display:flex;align-items:center;justify-content:space-between;gap:12px}
.channel-card h3{margin:0;font-size:17px}
.channel-card .channel-link{
 display:inline-flex;align-items:center;gap:7px;
 font-size:13px;font-weight:600;color:var(--primary);
 transition:gap .2s ease,color .2s ease;
}
.channel-card:hover .channel-link{gap:12px;color:#8bf0ff}
.channel-arrow{font-size:14px;line-height:1}
/* ================= 延伸阅读卡 ================= */
.post-card{
 display:flex;flex-direction:column;overflow:hidden;
 background:var(--panel);
 border:1px solid var(--line);
 border-radius:var(--radius);
 transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.post-card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--shadow-hover)}
.post-thumb{position:relative;overflow:hidden;aspect-ratio:16/9;background:rgba(9,18,34,.9)}
.post-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.post-card:hover .post-thumb img{transform:scale(1.05)}
.post-body{padding:18px 20px 20px}
.post-body h3{font-size:15.5px;margin:0 0 10px;color:#f0f7ff;line-height:1.55}
.post-body p{margin:0 0 12px;font-size:13.5px;color:var(--muted)}
.post-meta{display:flex;align-items:center;gap:10px;font-size:12px;color:#7e91ad}
/* ================= FAQ ================= */
.faq-list{display:grid;gap:14px;max-width:900px;margin:0 auto}
.faq-item{
 background:var(--panel);
 border:1px solid var(--line);
 border-radius:var(--radius-sm);
 padding:18px 22px;
 transition:border-color .22s ease,background .22s ease;
}
.faq-item:hover{border-color:var(--line-strong);background:rgba(20,36,64,.8)}
.faq-item h3{margin:0 0 8px;font-size:15.5px;color:#eaf4ff;display:flex;align-items:flex-start;gap:10px}
.faq-item h3::before{
 content:"";width:7px;height:7px;border-radius:50%;background:var(--primary);
 box-shadow:0 0 9px var(--primary);flex:0 0 auto;margin-top:9px;
}
.faq-item p{margin:0;font-size:13.8px;color:var(--muted);line-height:1.8}
/* ================= CTA ================= */
.cta-band{
 position:relative;overflow:hidden;
 border-radius:18px;
 border:1px solid rgba(49,224,255,.32);
 background:
  radial-gradient(600px 260px at 88% 0%,rgba(49,224,255,.2),transparent 62%),
  linear-gradient(135deg,rgba(23,45,84,.95),rgba(9,19,38,.96));
 box-shadow:var(--shadow);
 padding:42px 40px;
 display:flex;align-items:center;justify-content:space-between;gap:30px;flex-wrap:wrap;
}
.cta-band h2{margin:0 0 10px;font-size:24px;color:#fff;letter-spacing:.4px}
.cta-band p{margin:0;color:var(--muted);font-size:14px;max-width:520px}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}
/* ================= 页脚 ================= */
.site-footer{margin-top:0;padding:54px 0 0;background:rgba(4,9,20,.92);border-top:1px solid var(--line)}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:38px;padding-bottom:36px}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:15px;font-weight:700;margin-bottom:14px;letter-spacing:.3px}
.footer-about{margin:0;max-width:400px;font-size:13.5px;line-height:1.82;color:var(--muted)}
.footer-col h4{margin:0 0 14px;font-size:14px;color:#eaf4ff;letter-spacing:.6px}
.footer-col ul{list-style:none;margin:0;padding:0;display:grid;gap:9px}
.footer-col a{font-size:13.5px;color:var(--muted);transition:color .2s ease}
.footer-col a:hover{color:var(--primary)}
.footer-bottom{
 border-top:1px solid var(--line);
 padding:18px 0 26px;
 display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;
 font-size:12.5px;color:#7e91ad;
}
.footer-bottom a{color:#9fd9ff;transition:color .2s ease}
.footer-bottom a:hover{color:var(--primary)}
/* ================= 响应式 ================= */
@media (max-width:1024px){
 .article-hero h1{font-size:30px}
 .grid-3{grid-template-columns:repeat(2,minmax(0,1fr))}
 .footer-grid{grid-template-columns:1.3fr 1fr 1fr;gap:28px}
 .article-card{padding:30px 26px}
}
@media (max-width:860px){
 .nav-toggle{display:flex}
 .main-nav{
  position:absolute;top:calc(100% + 10px);left:0;right:0;
  display:none;flex-direction:column;align-items:stretch;gap:6px;
  padding:14px;border-radius:var(--radius);
  background:rgba(8,18,37,.98);
  border:1px solid var(--line);
  box-shadow:var(--shadow);
  margin-left:0;
 }
 .main-nav.open{display:flex}
 .nav-link{padding:12px 14px;min-height:44px;display:flex;align-items:center;font-size:14.5px}
 .header-actions{margin-left:auto}
 .brand-text{font-size:14.5px}
 .section{padding:50px 0}
 .section h2{font-size:23px}
 .article-hero{padding:36px 0 34px}
 .article-hero h1{font-size:26px}
 .cta-band{padding:32px 24px}
 .footer-grid{grid-template-columns:1fr 1fr}
 .footer-grid > div:first-child{grid-column:1 / -1}
}
@media (max-width:640px){
 .container{padding:0 18px}
 .grid-3,.grid-2{grid-template-columns:1fr}
 .article-card{padding:24px 20px;border-radius:12px}
 .article-body{font-size:15px}
 .article-body h2{font-size:20px}
 .article-body h3{font-size:17px}
 .article-hero h1{font-size:22px;line-height:1.45}
 .section-head{margin-bottom:22px}
 .section h2{font-size:21px}
 .footer-grid{grid-template-columns:1fr;gap:24px}
 .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
 .btn{width:100%}
 .header-actions .btn-sm{width:auto}
 .cta-actions{width:100%}
 .cta-actions .btn{width:100%}
}
@media (max-width:520px){
 .brand-text{max-width:150px;overflow:hidden;text-overflow:ellipsis}
 .article-meta{font-size:12.5px}
 .pill{font-size:12px}
}

/* roulang page: category1 */
:root{
 --bg:#050b18;
 --bg-soft:#081225;
 --panel:rgba(17,31,56,.72);
 --panel-strong:rgba(11,21,40,.92);
 --line:rgba(120,170,255,.16);
 --line-strong:rgba(120,196,255,.42);
 --text:#e8f1ff;
 --muted:#9db0cc;
 --primary:#31e0ff;
 --primary-deep:#0aa7cf;
 --accent:#7b5cff;
 --warm:#ffd166;
 --radius:14px;
 --radius-sm:10px;
 --shadow:0 18px 40px rgba(2,8,20,.55);
 --shadow-hover:0 26px 52px rgba(2,8,20,.75);
 --container:1180px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:82px}
body{
 margin:0;
 font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",sans-serif;
 font-size:15px;
 line-height:1.78;
 color:var(--text);
 background:
 radial-gradient(1100px 560px at 82% -8%,rgba(49,224,255,.14),transparent 62%),
 radial-gradient(900px 520px at 2% 8%,rgba(123,92,255,.16),transparent 58%),
 var(--bg);
 -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button{font-family:inherit}
input{font-family:inherit}
p{margin:0 0 14px}
h1,h2,h3,h4{margin:0;line-height:1.35;font-weight:700}
ul{margin:0;padding:0;list-style:none}
a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
/* ============ 顶部导航 ============ */
.site-header{
 position:sticky;top:0;z-index:80;
 background:rgba(5,11,24,.82);
 -webkit-backdrop-filter:blur(16px);
 backdrop-filter:blur(16px);
 border-bottom:1px solid var(--line);
 transition:box-shadow .25s ease,background .25s ease;
}
.site-header.is-scrolled{box-shadow:0 14px 34px rgba(0,0,0,.5);background:rgba(5,11,24,.94)}
.header-inner{display:flex;align-items:center;gap:20px;height:64px;position:relative}
.brand{display:flex;align-items:center;gap:10px;font-size:16px;font-weight:700;letter-spacing:.4px;white-space:nowrap}
.brand-mark{
 width:26px;height:26px;border-radius:9px;flex:0 0 auto;
 background:linear-gradient(135deg,var(--primary),var(--accent));
 box-shadow:0 0 16px rgba(49,224,255,.62);
 position:relative;
}
.brand-mark::after{content:"";position:absolute;inset:7px;border-radius:50%;background:#04101f}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-link{
 padding:8px 13px;border-radius:9px;font-size:14px;color:var(--muted);
 border:1px solid transparent;transition:color .2s ease,background .2s ease,border-color .2s ease;
 white-space:nowrap;
}
.nav-link:hover{color:#fff;background:rgba(49,224,255,.1);border-color:rgba(49,224,255,.22)}
.nav-link.active{color:#fff;background:rgba(49,224,255,.15);border-color:rgba(49,224,255,.4);box-shadow:0 0 18px rgba(49,224,255,.18)}
.header-actions{display:flex;align-items:center;gap:10px}
.nav-toggle{
 display:none;width:42px;height:42px;border-radius:11px;cursor:pointer;
 background:rgba(255,255,255,.04);border:1px solid var(--line);
 padding:0;align-items:center;justify-content:center;flex-direction:column;gap:4px;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:#cfe3ff;transition:.2s}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
/* ============ 按钮与标签 ============ */
.btn{
 display:inline-flex;align-items:center;justify-content:center;gap:8px;
 padding:12px 22px;min-height:44px;border-radius:9px;
 font-size:14px;font-weight:600;letter-spacing:.3px;
 border:1px solid transparent;cursor:pointer;
 transition:transform .2s ease,box-shadow .2s ease,background .2s ease,border-color .2s ease,color .2s ease;
}
.btn-primary{
 background:linear-gradient(135deg,var(--primary),#2b9cff);
 color:#02131f;
 box-shadow:0 0 0 1px rgba(49,224,255,.42),0 12px 28px rgba(20,160,220,.36);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 0 0 1px rgba(49,224,255,.75),0 18px 38px rgba(20,160,220,.55)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:rgba(255,255,255,.04);border-color:rgba(160,200,255,.28);color:#dce9ff}
.btn-ghost:hover{border-color:var(--primary);color:#fff;background:rgba(49,224,255,.1);transform:translateY(-2px)}
.btn-sm{padding:9px 16px;min-height:40px;font-size:13px}
.pill{
 display:inline-flex;align-items:center;gap:8px;
 padding:6px 14px;border-radius:999px;font-size:12.5px;letter-spacing:.6px;
 color:#bfe9ff;background:rgba(49,224,255,.1);
 border:1px solid rgba(49,224,255,.3);
}
.pill .dot-live{width:7px;height:7px;border-radius:50%;background:var(--primary);box-shadow:0 0 10px var(--primary)}
.tag{
 display:inline-flex;align-items:center;
 padding:4px 10px;border-radius:7px;font-size:12px;
 color:#9fd9ff;background:rgba(49,224,255,.09);
 border:1px solid rgba(49,224,255,.22);
}
.badge{
 display:inline-flex;align-items:center;padding:3px 9px;border-radius:6px;
 font-size:11.5px;letter-spacing:.5px;color:#ffe6a8;
 background:rgba(255,209,102,.12);border:1px solid rgba(255,209,102,.32);
}
/* ============ 通用板块 ============ */
.section{padding:62px 0;position:relative}
.section.alt{
 background:linear-gradient(180deg,rgba(9,18,34,.72),rgba(6,13,26,.86));
 border-top:1px solid var(--line);
 border-bottom:1px solid var(--line);
}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:26px;margin-bottom:30px;flex-wrap:wrap}
.eyebrow{display:inline-flex;align-items:center;gap:9px;font-size:12px;letter-spacing:2.4px;color:var(--primary);font-weight:600}
.eyebrow::before{content:"";width:22px;height:2px;border-radius:2px;background:linear-gradient(90deg,var(--primary),transparent)}
.section h2{font-size:26px;margin-top:10px;letter-spacing:.4px}
.section-desc{color:var(--muted);font-size:14px;max-width:460px;margin:0}
.section-desc strong{color:#cfe9ff;font-weight:600}
/* ============ Hero ============ */
.hero{position:relative;overflow:hidden;padding:62px 0 56px;border-bottom:1px solid var(--line)}
.hero-bg{
 position:absolute;inset:0;
 background-image:url('/assets/images/backpic/back-2.webp');
 background-size:cover;background-position:center;
 opacity:.34;
}
.hero::after{
 content:"";position:absolute;inset:0;pointer-events:none;
 background:linear-gradient(180deg,rgba(5,11,24,.6) 0%,rgba(5,11,24,.88) 60%,#050b18 100%);
}
.hero-grid{position:relative;z-index:2;display:grid;grid-template-columns:1.1fr .9fr;gap:42px;align-items:center}
.hero h1{font-size:38px;line-height:1.3;letter-spacing:.5px;margin:18px 0 14px}
.hero-lead{color:#c2d5ef;font-size:15.5px;max-width:560px;margin-bottom:20px}
.hero-tags{display:flex;flex-wrap:wrap;gap:9px;margin-bottom:24px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:16px}
.hero-note{font-size:13px;color:var(--muted);margin:0}
.hero-panel{
 background:linear-gradient(160deg,rgba(23,42,74,.86),rgba(9,18,34,.92));
 border:1px solid var(--line-strong);
 border-radius:var(--radius);
 box-shadow:var(--shadow),inset 0 1px 0 rgba(180,225,255,.14);
 padding:24px;
 -webkit-backdrop-filter:blur(12px);
 backdrop-filter:blur(12px);
}
.panel-title{display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:15px;padding-bottom:14px;border-bottom:1px dashed rgba(120,170,255,.24);margin-bottom:14px}
.panel-title span:last-child{font-size:12px;color:var(--primary)}
.version-list li{display:flex;align-items:baseline;justify-content:space-between;gap:14px;padding:9px 0;border-bottom:1px solid rgba(120,170,255,.1);font-size:13.5px}
.version-list li:last-child{border-bottom:0}
.version-list .vk{color:var(--muted)}
.version-list .vv{color:#dff4ff;font-weight:600;letter-spacing:.2px}
.verify-chip{
 margin-top:16px;display:flex;align-items:center;gap:10px;
 padding:10px 14px;border-radius:var(--radius-sm);
 background:rgba(49,224,255,.08);border:1px solid rgba(49,224,255,.26);
 font-size:12.5px;color:#bfe9ff;
}
.verify-chip::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--primary);box-shadow:0 0 12px var(--primary);flex:0 0 auto}
/* ============ 安装方式卡片 ============ */
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.info-card{
 background:linear-gradient(165deg,var(--panel),var(--panel-strong));
 border:1px solid var(--line);
 border-radius:var(--radius);
 box-shadow:var(--shadow);
 overflow:hidden;
 transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
 display:flex;flex-direction:column;
}
.info-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:var(--line-strong)}
.card-media{position:relative;aspect-ratio:16/9;overflow:hidden}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.info-card:hover .card-media img{transform:scale(1.05)}
.card-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(5,11,24,.05),rgba(5,11,24,.82))}
.card-media .badge{position:absolute;top:12px;left:12px;z-index:2}
.card-body{padding:20px 20px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.card-title{font-size:17px}
.card-text{color:var(--muted);font-size:13.6px;margin:0}
.card-tags{display:flex;flex-wrap:wrap;gap:7px;margin-top:auto;padding-top:6px}
/* ============ 准备清单 ============ */
.prep-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:26px;align-items:start}
.check-list{display:grid;gap:12px}
.check-item{
 display:flex;gap:14px;align-items:flex-start;
 padding:16px 18px;border-radius:var(--radius-sm);
 background:var(--panel);
 border:1px solid var(--line);
 transition:border-color .2s ease,transform .2s ease,background .2s ease;
}
.check-item:hover{border-color:var(--line-strong);transform:translateX(3px);background:rgba(23,42,74,.72)}
.check-icon{
 width:26px;height:26px;border-radius:8px;flex:0 0 auto;margin-top:2px;
 background:rgba(49,224,255,.14);border:1px solid rgba(49,224,255,.4);
 display:flex;align-items:center;justify-content:center;
 font-size:12px;font-weight:700;color:var(--primary);
}
.check-item h3{font-size:14.5px;margin-bottom:3px}
.check-item p{font-size:13.4px;color:var(--muted);margin:0}
.stat-panel{
 background:linear-gradient(160deg,rgba(23,42,74,.9),rgba(8,16,32,.94));
 border:1px solid var(--line-strong);
 border-radius:var(--radius);
 padding:24px;
 box-shadow:var(--shadow);
}
.stat-panel h3{font-size:15px;margin-bottom:16px;color:#dceeff}
.stat-item{padding:14px 0;border-bottom:1px solid rgba(120,170,255,.12)}
.stat-item:last-child{border-bottom:0;padding-bottom:0}
.stat-num{font-size:26px;font-weight:700;color:#fff;letter-spacing:.5px;line-height:1.2}
.stat-num em{font-style:normal;font-size:14px;color:var(--primary);margin-left:4px}
.stat-label{font-size:12.8px;color:var(--muted);margin-top:2px}
/* ============ 安装步骤 ============ */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;position:relative}
.step{
 position:relative;padding:22px 18px;
 background:var(--panel);border:1px solid var(--line);
 border-radius:var(--radius);
 transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease;
}
.step:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--shadow)}
.step-num{
 display:inline-flex;align-items:center;justify-content:center;
 width:34px;height:34px;border-radius:10px;margin-bottom:12px;
 font-size:14px;font-weight:700;color:#02131f;
 background:linear-gradient(135deg,var(--primary),#2b9cff);
 box-shadow:0 8px 20px rgba(20,160,220,.35);
}
.step h3{font-size:15px;margin-bottom:6px}
.step p{font-size:13.4px;color:var(--muted);margin:0}
/* ============ FAQ ============ */
.faq-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.faq-card{
 padding:20px 22px;border-radius:var(--radius);
 background:var(--panel);border:1px solid var(--line);
 transition:border-color .2s ease,background .2s ease,transform .2s ease;
}
.faq-card:hover{border-color:var(--line-strong);background:rgba(23,42,74,.76);transform:translateY(-3px)}
.faq-card h3{font-size:15px;margin-bottom:8px;display:flex;gap:10px;align-items:flex-start}
.faq-card h3::before{content:"?";flex:0 0 auto;width:22px;height:22px;border-radius:7px;display:flex;align-items:center;justify-content:center;font-size:12.5px;color:var(--primary);background:rgba(49,224,255,.12);border:1px solid rgba(49,224,255,.3)}
.faq-card p{font-size:13.6px;color:var(--muted);margin:0}
/* ============ 版本节奏 ============ */
.version-grid{display:grid;grid-template-columns:.95fr 1.05fr;gap:26px;align-items:start}
.timeline{display:grid;gap:0;border-left:2px solid rgba(49,224,255,.25);padding-left:20px;margin-left:4px}
.vt-item{position:relative;padding:0 0 20px 4px}
.vt-item:last-child{padding-bottom:0}
.vt-item::before{
 content:"";position:absolute;left:-27px;top:6px;width:11px;height:11px;border-radius:50%;
 background:var(--bg);border:2px solid var(--primary);box-shadow:0 0 12px rgba(49,224,255,.7);
}
.vt-head{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-bottom:4px}
.vt-ver{font-size:15px;font-weight:700;color:#fff}
.vt-item p{font-size:13.5px;color:var(--muted);margin:0}
.version-cards{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
.mini-card{
 padding:18px;border-radius:var(--radius-sm);
 background:var(--panel);border:1px solid var(--line);
 transition:border-color .2s ease,transform .2s ease;
}
.mini-card:hover{border-color:var(--line-strong);transform:translateY(-3px)}
.mini-card strong{display:block;font-size:19px;color:#fff;margin-bottom:4px}
.mini-card span{font-size:13px;color:var(--muted)}
/* ============ 安全校验 ============ */
.verify-band{
 position:relative;overflow:hidden;
 border-radius:18px;padding:38px 34px;
 border:1px solid rgba(120,196,255,.34);
 background:
  radial-gradient(600px 260px at 88% 0%,rgba(123,92,255,.24),transparent 62%),
  linear-gradient(150deg,rgba(20,38,68,.95),rgba(7,14,28,.96));
 box-shadow:var(--shadow);
}
.verify-band h2{font-size:24px;margin-bottom:12px}
.verify-band .lead{color:#bcd2ee;font-size:14.5px;max-width:640px;margin-bottom:22px}
.verify-list{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.verify-list li{
 padding:16px 18px;border-radius:var(--radius-sm);
 background:rgba(255,255,255,.04);border:1px solid rgba(120,170,255,.18);
 font-size:13.4px;color:#cfe0f6;
 transition:border-color .2s ease,background .2s ease;
}
.verify-list li:hover{border-color:rgba(49,224,255,.42);background:rgba(49,224,255,.07)}
.verify-list li b{display:block;color:#fff;font-size:14px;margin-bottom:4px}
/* ============ 资讯列表 ============ */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.news-card{
 display:flex;flex-direction:column;gap:8px;
 padding:20px;border-radius:var(--radius);
 background:var(--panel);border:1px solid var(--line);
 box-shadow:var(--shadow);
 transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:var(--line-strong)}
.news-meta{display:flex;align-items:center;gap:10px;flex-wrap:wrap;font-size:12.5px;color:var(--muted)}
.news-meta .tag{padding:3px 9px;font-size:11.5px}
.news-card h3{font-size:15.5px;line-height:1.5}
.news-card p{font-size:13.4px;color:var(--muted);margin:0}
.news-more{margin-top:auto;padding-top:8px;font-size:13px;color:var(--primary);font-weight:600}
.news-empty{
 padding:28px;border-radius:var(--radius);
 border:1px dashed rgba(120,170,255,.3);
 background:rgba(255,255,255,.02);
 color:var(--muted);font-size:14px;text-align:center;
}
/* ============ 分类入口 ============ */
.channels-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.channel-card{
 display:block;padding:22px;border-radius:var(--radius);
 background:linear-gradient(160deg,rgba(23,42,74,.8),rgba(8,16,32,.9));
 border:1px solid var(--line);
 transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease;
}
.channel-card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--shadow)}
.channel-card .badge{margin-bottom:10px}
.channel-card h3{font-size:16px;margin-bottom:6px}
.channel-card p{font-size:13.4px;color:var(--muted);margin:0}
.channel-card .arrow{display:inline-block;margin-top:12px;font-size:13px;color:var(--primary);font-weight:600}
/* ============ 收口 CTA ============ */
.cta-band{
 display:flex;align-items:center;justify-content:space-between;gap:26px;flex-wrap:wrap;
 padding:34px;border-radius:18px;
 border:1px solid rgba(49,224,255,.3);
 background:
  radial-gradient(520px 240px at 12% 10%,rgba(49,224,255,.18),transparent 60%),
  linear-gradient(140deg,rgba(16,32,58,.95),rgba(7,14,28,.96));
 box-shadow:var(--shadow);
}
.cta-band h2{font-size:23px;margin-bottom:8px}
.cta-band p{margin:0;color:var(--muted);font-size:14px;max-width:620px}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}
/* ============ 页脚 ============ */
.site-footer{
 margin-top:20px;padding:52px 0 26px;
 border-top:1px solid var(--line);
 background:linear-gradient(180deg,rgba(6,13,26,.6),rgba(4,9,18,.96));
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:38px;padding-bottom:32px}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:15.5px;font-weight:700;margin-bottom:14px}
.footer-about{font-size:13.4px;color:var(--muted);max-width:400px;margin:0}
.footer-col h4{font-size:14px;margin-bottom:14px;color:#dceeff}
.footer-col li{margin-bottom:9px}
.footer-col a{font-size:13.4px;color:var(--muted);transition:color .2s ease,padding-left .2s ease}
.footer-col a:hover{color:var(--primary);padding-left:3px}
.footer-bottom{
 display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
 padding-top:20px;border-top:1px solid var(--line);
 font-size:12.6px;color:var(--muted);
}
.footer-bottom a{color:#a8c8ea}
.footer-bottom a:hover{color:var(--primary)}
/* ============ 响应式 ============ */
@media (max-width:1024px){
 .hero-grid{grid-template-columns:1fr;gap:30px}
 .hero h1{font-size:32px}
 .card-grid{grid-template-columns:repeat(2,1fr)}
 .prep-grid,.version-grid{grid-template-columns:1fr}
 .steps{grid-template-columns:repeat(2,1fr)}
 .news-grid,.channels-grid,.verify-list{grid-template-columns:repeat(2,1fr)}
 .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:860px){
 .main-nav{
  display:none;position:absolute;top:64px;left:0;right:0;
  flex-direction:column;align-items:stretch;gap:6px;
  padding:14px 24px 18px;
  background:rgba(6,13,26,.98);
  border-bottom:1px solid var(--line);
  box-shadow:0 24px 40px rgba(0,0,0,.5);
 }
 .main-nav.is-open{display:flex}
 .nav-link{padding:12px 14px;min-height:44px;display:flex;align-items:center}
 .nav-toggle{display:flex}
 .header-actions{margin-left:auto}
}
@media (max-width:768px){
 .section{padding:46px 0}
 .section h2{font-size:22px}
 .hero{padding:46px 0 42px}
 .hero h1{font-size:27px}
 .faq-grid{grid-template-columns:1fr}
 .version-cards{grid-template-columns:1fr}
 .verify-band{padding:28px 22px}
 .cta-band{padding:26px 22px}
 .cta-actions{width:100%}
 .cta-actions .btn{flex:1 1 160px}
}
@media (max-width:560px){
 .container{padding:0 16px}
 .brand-text{font-size:14.5px}
 .card-grid,.steps,.news-grid,.channels-grid,.verify-list,.footer-grid{grid-template-columns:1fr}
 .hero h1{font-size:24px}
 .hero-lead{font-size:14.5px}
 .section h2{font-size:20px}
 .header-actions .btn-sm{padding:8px 13px;font-size:12.5px}
 .stat-num{font-size:22px}
 .footer-bottom{flex-direction:column;gap:6px}
}

/* roulang page: category2 */
:root{
 --bg:#050b18;
 --bg-soft:#081225;
 --panel:rgba(17,31,56,.72);
 --panel-strong:rgba(11,21,40,.92);
 --line:rgba(120,170,255,.16);
 --line-strong:rgba(120,196,255,.42);
 --text:#e8f1ff;
 --muted:#9db0cc;
 --primary:#31e0ff;
 --primary-deep:#0aa7cf;
 --accent:#7b5cff;
 --warm:#ffd166;
 --radius:14px;
 --radius-sm:10px;
 --shadow:0 18px 40px rgba(2,8,20,.55);
 --shadow-hover:0 26px 52px rgba(2,8,20,.75);
 --container:1180px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:82px}
body{
 margin:0;
 font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",sans-serif;
 font-size:15px;
 line-height:1.78;
 color:var(--text);
 background:
 radial-gradient(1100px 560px at 82% -8%,rgba(49,224,255,.14),transparent 62%),
 radial-gradient(900px 520px at 2% 8%,rgba(123,92,255,.16),transparent 58%),
 var(--bg);
 -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button{font-family:inherit}
input{font-family:inherit}
ul{margin:0;padding:0;list-style:none}
p{margin:0 0 12px}
p:last-child{margin-bottom:0}
a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:6px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
/* ============ 顶部导航 ============ */
.site-header{
 position:sticky;top:0;z-index:80;
 background:rgba(5,11,24,.82);
 -webkit-backdrop-filter:blur(16px);
 backdrop-filter:blur(16px);
 border-bottom:1px solid var(--line);
 transition:box-shadow .25s ease,background .25s ease;
}
.site-header.is-scrolled{box-shadow:0 14px 34px rgba(0,0,0,.5);background:rgba(5,11,24,.94)}
.header-inner{display:flex;align-items:center;gap:20px;height:64px;position:relative}
.brand{display:flex;align-items:center;gap:10px;font-size:16px;font-weight:700;letter-spacing:.4px;white-space:nowrap}
.brand-mark{
 width:26px;height:26px;border-radius:9px;flex:0 0 auto;
 background:linear-gradient(135deg,var(--primary),var(--accent));
 box-shadow:0 0 16px rgba(49,224,255,.62);
 position:relative;
}
.brand-mark::after{content:"";position:absolute;inset:7px;border-radius:50%;background:#04101f}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-link{
 padding:8px 13px;border-radius:9px;font-size:14px;color:var(--muted);
 border:1px solid transparent;transition:color .2s ease,background .2s ease,border-color .2s ease;
 white-space:nowrap;
}
.nav-link:hover{color:#fff;background:rgba(49,224,255,.1);border-color:rgba(49,224,255,.22)}
.nav-link.active{color:#fff;background:rgba(49,224,255,.15);border-color:rgba(49,224,255,.4);box-shadow:0 0 18px rgba(49,224,255,.18)}
.header-actions{display:flex;align-items:center;gap:10px}
.nav-toggle{
 display:none;width:42px;height:42px;border-radius:11px;cursor:pointer;
 background:rgba(255,255,255,.04);border:1px solid var(--line);
 padding:0;align-items:center;justify-content:center;flex-direction:column;gap:4px;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:#cfe3ff;transition:.2s}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
/* ============ 按钮与标签 ============ */
.btn{
 display:inline-flex;align-items:center;justify-content:center;gap:8px;
 padding:12px 22px;min-height:44px;border-radius:9px;
 font-size:14px;font-weight:600;letter-spacing:.3px;
 border:1px solid transparent;cursor:pointer;
 transition:transform .2s ease,box-shadow .2s ease,background .2s ease,border-color .2s ease,color .2s ease;
}
.btn-primary{
 background:linear-gradient(135deg,var(--primary),#2b9cff);
 color:#02131f;
 box-shadow:0 0 0 1px rgba(49,224,255,.42),0 12px 28px rgba(20,160,220,.36);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 0 0 1px rgba(49,224,255,.75),0 18px 38px rgba(20,160,220,.55)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:rgba(255,255,255,.04);border-color:rgba(160,200,255,.28);color:#dce9ff}
.btn-ghost:hover{border-color:var(--primary);color:#fff;background:rgba(49,224,255,.1);transform:translateY(-2px)}
.btn-sm{padding:9px 16px;min-height:40px;font-size:13px}
.pill{
 display:inline-flex;align-items:center;gap:8px;
 padding:6px 14px;border-radius:999px;font-size:12.5px;letter-spacing:.6px;
 color:#bfe9ff;background:rgba(49,224,255,.1);
 border:1px solid rgba(49,224,255,.3);
}
.pill .dot-live{width:7px;height:7px;border-radius:50%;background:var(--primary);box-shadow:0 0 10px var(--primary)}
.tag{
 display:inline-flex;align-items:center;
 padding:4px 10px;border-radius:7px;font-size:12px;
 color:#9fd9ff;background:rgba(49,224,255,.09);
 border:1px solid rgba(49,224,255,.22);
}
.badge{
 display:inline-flex;align-items:center;padding:3px 9px;border-radius:6px;
 font-size:11.5px;letter-spacing:.5px;color:#ffe6a8;
 background:rgba(255,209,102,.12);border:1px solid rgba(255,209,102,.32);
}
/* ============ 通用板块 ============ */
.section{padding:62px 0;position:relative}
.section.alt{
 background:linear-gradient(180deg,rgba(9,18,34,.72),rgba(6,13,26,.86));
 border-top:1px solid var(--line);
 border-bottom:1px solid var(--line);
}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:26px;margin-bottom:30px;flex-wrap:wrap}
.eyebrow{display:inline-flex;align-items:center;gap:9px;font-size:12px;letter-spacing:2.4px;color:var(--primary);font-weight:600}
.eyebrow::before{content:"";width:22px;height:2px;border-radius:2px;background:linear-gradient(90deg,var(--primary),transparent)}
.section h2{font-size:26px;margin:10px 0 0;letter-spacing:.4px;line-height:1.4}
.section-desc{color:var(--muted);font-size:14px;max-width:430px;margin:0}
.section-desc strong{color:#cfe9ff;font-weight:600}
/* ============ 分类 Hero ============ */
.cat-hero{position:relative;overflow:hidden;padding:60px 0 56px;border-bottom:1px solid var(--line)}
.cat-hero-bg{
 position:absolute;inset:0;
 background-image:url('/assets/images/backpic/back-2.webp');
 background-size:cover;background-position:center;
 opacity:.34;
}
.cat-hero::after{
 content:"";position:absolute;inset:0;pointer-events:none;
 background:linear-gradient(180deg,rgba(5,11,24,.62) 0%,rgba(5,11,24,.88) 60%,#050b18 100%);
}
.cat-hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.08fr .92fr;gap:44px;align-items:center}
.cat-hero h1{font-size:38px;line-height:1.3;letter-spacing:.6px;margin:16px 0 14px}
.cat-hero h1 em{font-style:normal;color:var(--primary)}
.cat-hero-sub{color:#c4d6ef;font-size:15px;max-width:520px}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
/* 自测面板 */
.quiz-panel{
 background:var(--panel);
 border:1px solid var(--line-strong);
 border-radius:var(--radius);
 padding:22px;
 box-shadow:var(--shadow);
 -webkit-backdrop-filter:blur(14px);
 backdrop-filter:blur(14px);
}
.quiz-panel h2{font-size:16px;margin:12px 0 6px;letter-spacing:.3px}
.quiz-hint{font-size:13px;color:var(--muted);margin-bottom:16px}
.quiz-options{display:flex;flex-direction:column;gap:9px;margin-bottom:16px}
.quiz-opt{
 display:flex;align-items:center;gap:10px;
 width:100%;text-align:left;
 padding:11px 14px;min-height:44px;
 border-radius:var(--radius-sm);
 border:1px solid var(--line);
 background:rgba(255,255,255,.03);
 color:#cfe1f8;font-size:13.5px;cursor:pointer;
 transition:background .2s ease,border-color .2s ease,color .2s ease,transform .2s ease;
}
.quiz-opt:hover{border-color:rgba(49,224,255,.45);background:rgba(49,224,255,.08);transform:translateY(-1px)}
.quiz-opt .q-dot{width:8px;height:8px;border-radius:50%;background:rgba(157,176,204,.6);flex:0 0 auto;transition:.2s}
.quiz-opt.is-active{border-color:rgba(49,224,255,.6);background:rgba(49,224,255,.14);color:#fff;box-shadow:0 0 20px rgba(49,224,255,.16)}
.quiz-opt.is-active .q-dot{background:var(--primary);box-shadow:0 0 10px var(--primary)}
.quiz-result{
 border-radius:var(--radius-sm);
 border:1px dashed rgba(120,196,255,.35);
 background:rgba(8,18,37,.9);
 padding:14px 16px;
 font-size:13.5px;color:#c9ddf5;
}
.quiz-result strong{display:block;color:var(--primary);font-size:14px;margin-bottom:4px}
/* ============ 卡片网格 ============ */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.card{
 background:var(--panel);
 border:1px solid var(--line);
 border-radius:var(--radius);
 padding:22px;
 box-shadow:var(--shadow);
 -webkit-backdrop-filter:blur(12px);
 backdrop-filter:blur(12px);
 transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:var(--line-strong)}
.card .card-icon{
 width:40px;height:40px;border-radius:11px;
 display:flex;align-items:center;justify-content:center;
 background:rgba(49,224,255,.1);
 border:1px solid rgba(49,224,255,.3);
 margin-bottom:14px;
}
.card .card-icon svg{width:20px;height:20px;stroke:var(--primary);fill:none;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.card h3{font-size:17px;margin:0 0 8px;letter-spacing:.3px}
.card p{font-size:14px;color:var(--muted);line-height:1.78}
.card-foot{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.card-step{
 font-size:12px;letter-spacing:1.6px;color:var(--primary);font-weight:700;margin-bottom:8px;
}
/* 场景卡（带图） */
.scene-card{
 background:var(--panel);
 border:1px solid var(--line);
 border-radius:var(--radius);
 overflow:hidden;
 box-shadow:var(--shadow);
 transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
 display:flex;flex-direction:column;
}
.scene-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:var(--line-strong)}
.scene-thumb{position:relative;aspect-ratio:16/10;overflow:hidden;background:#081225}
.scene-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.scene-card:hover .scene-thumb img{transform:scale(1.05)}
.scene-thumb::after{
 content:"";position:absolute;inset:0;
 background:linear-gradient(180deg,rgba(5,11,24,.06) 30%,rgba(5,11,24,.75) 100%);
}
.scene-body{padding:18px 18px 20px;display:flex;flex-direction:column;gap:8px;flex:1}
.scene-body h3{font-size:16px;margin:0}
.scene-body p{font-size:13.5px;color:var(--muted);margin:0}
.scene-tags{display:flex;gap:8px;flex-wrap:wrap;margin-top:auto;padding-top:12px}
/* ============ 步骤流程 ============ */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;counter-reset:step}
.step{
 position:relative;
 background:var(--panel-strong);
 border:1px solid var(--line);
 border-radius:var(--radius);
 padding:24px 20px 20px;
 transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.step:hover{transform:translateY(-3px);border-color:var(--line-strong);box-shadow:var(--shadow)}
.step::before{
 counter-increment:step;
 content:"0" counter(step);
 display:block;
 font-size:26px;font-weight:700;letter-spacing:1px;
 color:transparent;
 background:linear-gradient(135deg,var(--primary),var(--accent));
 -webkit-background-clip:text;background-clip:text;
 margin-bottom:10px;
}
.step h3{font-size:16px;margin:0 0 8px}
.step p{font-size:13.5px;color:var(--muted);margin:0}
/* ============ 数值参考 ============ */
.meter-list{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.meter{
 background:var(--panel);
 border:1px solid var(--line);
 border-radius:var(--radius);
 padding:20px;
 box-shadow:var(--shadow);
}
.meter-head{display:flex;align-items:baseline;justify-content:space-between;gap:10px;margin-bottom:14px}
.meter-head h3{font-size:15px;margin:0}
.meter-head span{font-size:13px;color:var(--primary);font-weight:700}
.meter-bar{height:8px;border-radius:999px;background:rgba(120,170,255,.14);overflow:hidden;margin-bottom:12px}
.meter-bar i{display:block;height:100%;border-radius:999px;background:linear-gradient(90deg,var(--primary),var(--accent));box-shadow:0 0 14px rgba(49,224,255,.5)}
.meter p{font-size:13.5px;color:var(--muted);margin:0}
/* ============ 误区对照 ============ */
.compare{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.compare-col{
 border-radius:var(--radius);
 padding:22px;
 border:1px solid var(--line);
 background:var(--panel);
}
.compare-col.bad{border-color:rgba(255,120,120,.28)}
.compare-col.good{border-color:rgba(49,224,255,.36);background:rgba(12,32,52,.75)}
.compare-col h3{display:flex;align-items:center;gap:9px;font-size:16px;margin:0 0 14px}
.compare-col h3 .mark{width:22px;height:22px;border-radius:7px;display:inline-flex;align-items:center;justify-content:center;font-size:12px;font-weight:700}
.compare-col.bad h3 .mark{background:rgba(255,120,120,.14);color:#ff9b9b;border:1px solid rgba(255,120,120,.36)}
.compare-col.good h3 .mark{background:rgba(49,224,255,.14);color:var(--primary);border:1px solid rgba(49,224,255,.4)}
.compare-col ul li{
 position:relative;padding-left:18px;margin-bottom:11px;
 font-size:14px;color:var(--muted);line-height:1.72;
}
.compare-col ul li:last-child{margin-bottom:0}
.compare-col ul li::before{
 content:"";position:absolute;left:0;top:9px;width:7px;height:7px;border-radius:50%;
 background:rgba(157,176,204,.55);
}
.compare-col.good ul li::before{background:var(--primary);box-shadow:0 0 8px rgba(49,224,255,.6)}
/* ============ 资讯列表 ============ */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.news-card{
 background:var(--panel);
 border:1px solid var(--line);
 border-radius:var(--radius);
 box-shadow:var(--shadow);
 transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
 overflow:hidden;
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:var(--line-strong)}
.news-card a{display:block;padding:20px}
.news-meta{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-bottom:10px}
.news-meta .news-cat{
 font-size:11.5px;letter-spacing:.4px;color:#9fd9ff;
 background:rgba(49,224,255,.09);border:1px solid rgba(49,224,255,.22);
 padding:3px 9px;border-radius:6px;
}
.news-meta .news-date{font-size:12px;color:var(--muted)}
.news-card h3{font-size:15.5px;line-height:1.6;margin:0 0 8px;transition:color .2s ease}
.news-card:hover h3{color:var(--primary)}
.news-excerpt{
 font-size:13.5px;color:var(--muted);margin:0;
 display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.news-empty{
 padding:28px;border-radius:var(--radius);border:1px dashed rgba(120,196,255,.32);
 background:rgba(8,18,37,.7);color:var(--muted);font-size:14px;text-align:center;
}
/* ============ FAQ ============ */
.faq-list{display:flex;flex-direction:column;gap:12px;max-width:880px}
.faq-item{
 background:var(--panel);
 border:1px solid var(--line);
 border-radius:var(--radius-sm);
 overflow:hidden;
 transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item[open]{border-color:var(--line-strong);box-shadow:var(--shadow)}
.faq-item summary{
 list-style:none;cursor:pointer;
 padding:16px 18px;
 font-size:15px;font-weight:600;color:#e2eeff;
 display:flex;align-items:center;justify-content:space-between;gap:14px;
 min-height:48px;
 transition:color .2s ease;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--primary)}
.faq-item summary .plus{
 width:20px;height:20px;flex:0 0 auto;position:relative;
}
.faq-item summary .plus::before,
.faq-item summary .plus::after{
 content:"";position:absolute;left:50%;top:50%;background:var(--primary);border-radius:2px;
 transform:translate(-50%,-50%);transition:transform .2s ease,opacity .2s ease;
}
.faq-item summary .plus::before{width:12px;height:2px}
.faq-item summary .plus::after{width:2px;height:12px}
.faq-item[open] summary .plus::after{transform:translate(-50%,-50%) rotate(90deg);opacity:0}
.faq-answer{padding:0 18px 18px;font-size:14px;color:var(--muted);line-height:1.8}
/* ============ 频道入口 ============ */
.channel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.channel-card{
 display:block;
 background:var(--panel-strong);
 border:1px solid var(--line);
 border-radius:var(--radius);
 padding:22px;
 transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.channel-card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--shadow-hover);background:rgba(16,34,60,.85)}
.channel-card .ch-idx{font-size:12px;letter-spacing:2px;color:var(--primary);font-weight:700}
.channel-card h3{font-size:16.5px;margin:8px 0 8px}
.channel-card p{font-size:13.5px;color:var(--muted);margin:0}
.channel-card .ch-more{display:inline-flex;align-items:center;gap:6px;margin-top:14px;font-size:13px;color:var(--primary);font-weight:600}
/* ============ 收口 CTA ============ */
.cta-band{
 position:relative;overflow:hidden;
 border-radius:18px;
 border:1px solid var(--line-strong);
 padding:40px 36px;
 background:
 linear-gradient(120deg,rgba(49,224,255,.14),rgba(123,92,255,.16) 62%,rgba(11,21,40,.9)),
 var(--panel-strong);
 box-shadow:var(--shadow);
 display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
}
.cta-band h2{font-size:24px;margin:10px 0 8px}
.cta-band p{color:var(--muted);font-size:14px;max-width:560px;margin:0}
.cta-band .btn{box-shadow:0 0 0 1px rgba(49,224,255,.5),0 14px 34px rgba(20,160,220,.45)}
/* ============ 页脚 ============ */
.site-footer{
 border-top:1px solid var(--line);
 background:linear-gradient(180deg,rgba(6,13,26,.6),rgba(4,9,18,.96));
 padding:48px 0 24px;
 margin-top:0;
}
.footer-grid{display:grid;grid-template-columns:1.4fr .8fr .8fr;gap:36px}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:16px;font-weight:700;margin-bottom:14px}
.footer-about{font-size:13.5px;color:var(--muted);line-height:1.8;margin:0;max-width:420px}
.footer-col h4{font-size:14px;margin:0 0 14px;color:#dbe9ff;letter-spacing:.4px}
.footer-col ul li{margin-bottom:9px}
.footer-col ul li a{font-size:13.5px;color:var(--muted);transition:color .2s ease,padding-left .2s ease}
.footer-col ul li a:hover{color:var(--primary);padding-left:4px}
.footer-bottom{
 margin-top:34px;padding-top:18px;
 border-top:1px solid var(--line);
 display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;
 font-size:13px;color:var(--muted);
}
.footer-bottom a{color:#a9d8ff;transition:color .2s ease}
.footer-bottom a:hover{color:var(--primary)}
/* ============ 响应式 ============ */
@media (max-width:1024px){
 .cat-hero-inner{grid-template-columns:1fr;gap:32px}
 .cat-hero h1{font-size:32px}
 .grid-4{grid-template-columns:repeat(2,1fr)}
 .steps{grid-template-columns:repeat(2,1fr)}
 .meter-list{grid-template-columns:repeat(2,1fr)}
 .news-grid{grid-template-columns:repeat(2,1fr)}
 .channel-grid{grid-template-columns:1fr}
 .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
 .footer-grid > div:first-child{grid-column:1 / -1}
 .main-nav{
  position:absolute;top:64px;left:0;right:0;
  flex-direction:column;align-items:stretch;gap:6px;
  margin:0;padding:14px 20px 18px;
  background:rgba(5,11,24,.98);
  border-bottom:1px solid var(--line);
  box-shadow:0 20px 40px rgba(0,0,0,.55);
  display:none;
 }
 .main-nav.is-open{display:flex}
 .nav-link{padding:11px 14px;font-size:14.5px}
 .nav-toggle{display:flex}
 .header-actions{margin-left:auto}
}
@media (max-width:768px){
 .container{padding:0 18px}
 .section{padding:48px 0}
 .cat-hero{padding:44px 0 42px}
 .cat-hero h1{font-size:27px}
 .section h2{font-size:22px}
 .grid-3,.grid-4,.grid-2,.steps,.meter-list,.news-grid,.compare{grid-template-columns:1fr}
 .cta-band{padding:30px 22px;flex-direction:column;align-items:flex-start}
 .cta-band h2{font-size:21px}
 .section-head{flex-direction:column;align-items:flex-start;gap:12px}
 .section-desc{max-width:100%}
}
@media (max-width:520px){
 .brand-text{font-size:14.5px}
 .header-actions .btn-sm{display:none}
 .hero-actions .btn{width:100%}
 .footer-grid{grid-template-columns:1fr}
 .footer-bottom{flex-direction:column;align-items:flex-start}
 .quiz-panel{padding:18px}
 .card,.scene-body,.meter{padding:18px}
}

/* roulang page: category3 */
:root{
 --bg:#050b18;
 --bg-soft:#081225;
 --panel:rgba(17,31,56,.72);
 --panel-strong:rgba(11,21,40,.92);
 --line:rgba(120,170,255,.16);
 --line-strong:rgba(120,196,255,.42);
 --text:#e8f1ff;
 --muted:#9db0cc;
 --primary:#31e0ff;
 --primary-deep:#0aa7cf;
 --accent:#7b5cff;
 --warm:#ffd166;
 --radius:14px;
 --radius-sm:10px;
 --shadow:0 18px 40px rgba(2,8,20,.55);
 --shadow-hover:0 26px 52px rgba(2,8,20,.75);
 --container:1180px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:82px}
body{
 margin:0;
 font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",sans-serif;
 font-size:15px;
 line-height:1.78;
 color:var(--text);
 background:
  radial-gradient(1100px 560px at 82% -8%,rgba(49,224,255,.14),transparent 62%),
  radial-gradient(900px 520px at 2% 8%,rgba(123,92,255,.16),transparent 58%),
  var(--bg);
 -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button{font-family:inherit}
input{font-family:inherit}
a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px}
h1,h2,h3,h4{margin:0;line-height:1.35;font-weight:700}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}

/* ============ 顶部导航 ============ */
.site-header{
 position:sticky;top:0;z-index:80;
 background:rgba(5,11,24,.82);
 -webkit-backdrop-filter:blur(16px);
 backdrop-filter:blur(16px);
 border-bottom:1px solid var(--line);
 transition:box-shadow .25s ease,background .25s ease;
}
.site-header.is-scrolled{box-shadow:0 14px 34px rgba(0,0,0,.5);background:rgba(5,11,24,.94)}
.header-inner{display:flex;align-items:center;gap:20px;height:64px;position:relative}
.brand{display:flex;align-items:center;gap:10px;font-size:16px;font-weight:700;letter-spacing:.4px;white-space:nowrap}
.brand-mark{
 width:26px;height:26px;border-radius:9px;flex:0 0 auto;
 background:linear-gradient(135deg,var(--primary),var(--accent));
 box-shadow:0 0 16px rgba(49,224,255,.62);
 position:relative;
}
.brand-mark::after{content:"";position:absolute;inset:7px;border-radius:50%;background:#04101f}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-link{
 padding:8px 13px;border-radius:9px;font-size:14px;color:var(--muted);
 border:1px solid transparent;transition:color .2s ease,background .2s ease,border-color .2s ease;
 white-space:nowrap;
}
.nav-link:hover{color:#fff;background:rgba(49,224,255,.1);border-color:rgba(49,224,255,.22)}
.nav-link.active{color:#fff;background:rgba(49,224,255,.15);border-color:rgba(49,224,255,.4);box-shadow:0 0 18px rgba(49,224,255,.18)}
.header-actions{display:flex;align-items:center;gap:10px}
.nav-toggle{
 display:none;width:42px;height:42px;border-radius:11px;cursor:pointer;
 background:rgba(255,255,255,.04);border:1px solid var(--line);
 padding:0;align-items:center;justify-content:center;flex-direction:column;gap:4px;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:#cfe3ff;transition:.2s}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

/* ============ 按钮与标签 ============ */
.btn{
 display:inline-flex;align-items:center;justify-content:center;gap:8px;
 padding:12px 22px;min-height:44px;border-radius:9px;
 font-size:14px;font-weight:600;letter-spacing:.3px;
 border:1px solid transparent;cursor:pointer;
 transition:transform .2s ease,box-shadow .2s ease,background .2s ease,border-color .2s ease,color .2s ease;
}
.btn-primary{
 background:linear-gradient(135deg,var(--primary),#2b9cff);
 color:#02131f;
 box-shadow:0 0 0 1px rgba(49,224,255,.42),0 12px 28px rgba(20,160,220,.36);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 0 0 1px rgba(49,224,255,.75),0 18px 38px rgba(20,160,220,.55)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:rgba(255,255,255,.04);border-color:rgba(160,200,255,.28);color:#dce9ff}
.btn-ghost:hover{border-color:var(--primary);color:#fff;background:rgba(49,224,255,.1);transform:translateY(-2px)}
.btn-sm{padding:9px 16px;min-height:40px;font-size:13px}
.pill{
 display:inline-flex;align-items:center;gap:8px;
 padding:6px 14px;border-radius:999px;font-size:12.5px;letter-spacing:.6px;
 color:#bfe9ff;background:rgba(49,224,255,.1);
 border:1px solid rgba(49,224,255,.3);
}
.pill .dot-live{width:7px;height:7px;border-radius:50%;background:var(--primary);box-shadow:0 0 10px var(--primary)}
.tag{
 display:inline-flex;align-items:center;
 padding:4px 10px;border-radius:7px;font-size:12px;
 color:#9fd9ff;background:rgba(49,224,255,.09);
 border:1px solid rgba(49,224,255,.22);
}
.badge{
 display:inline-flex;align-items:center;padding:3px 9px;border-radius:6px;
 font-size:11.5px;letter-spacing:.5px;color:#ffe6a8;
 background:rgba(255,209,102,.12);border:1px solid rgba(255,209,102,.32);
}

/* ============ 通用板块 ============ */
.section{padding:62px 0;position:relative}
.section.alt{
 background:linear-gradient(180deg,rgba(9,18,34,.72),rgba(6,13,26,.86));
 border-top:1px solid var(--line);
 border-bottom:1px solid var(--line);
}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:26px;margin-bottom:30px;flex-wrap:wrap}
.eyebrow{display:inline-flex;align-items:center;gap:9px;font-size:12px;letter-spacing:2.4px;color:var(--primary);font-weight:600}
.eyebrow::before{content:"";width:22px;height:2px;border-radius:2px;background:linear-gradient(90deg,var(--primary),transparent)}
.section h2{font-size:26px;margin-top:10px;letter-spacing:.4px}
.section-desc{color:var(--muted);font-size:14px;max-width:430px;margin:0}
.section-desc strong{color:#cfe9ff;font-weight:600}

/* ============ 分类 Hero ============ */
.cat-hero{position:relative;overflow:hidden;padding:64px 0 56px;border-bottom:1px solid var(--line)}
.cat-hero-bg{
 position:absolute;inset:0;
 background-image:url('/assets/images/backpic/back-3.webp');
 background-size:cover;background-position:center;
 opacity:.34;
}
.cat-hero::after{
 content:"";position:absolute;inset:0;pointer-events:none;
 background:linear-gradient(180deg,rgba(5,11,24,.52) 0%,rgba(5,11,24,.88) 60%,#050b18 100%);
}
.cat-hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.08fr .92fr;gap:44px;align-items:center}
.crumb{display:flex;align-items:center;gap:8px;font-size:12.5px;color:var(--muted);margin-bottom:16px}
.crumb a{color:#a8c6ea}
.crumb a:hover{color:var(--primary)}
.crumb span{opacity:.55}
.cat-hero h1{font-size:38px;line-height:1.3;letter-spacing:.5px;margin:14px 0 16px}
.cat-hero h1 em{font-style:normal;color:var(--primary);text-shadow:0 0 26px rgba(49,224,255,.45)}
.cat-hero .lead{color:#c3d5ec;font-size:15px;max-width:560px}
.cat-hero .lead strong{color:#eaf6ff;font-weight:600}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}

/* Hero 右侧面板 */
.hero-panel{
 position:relative;border-radius:18px;padding:22px;
 background:linear-gradient(160deg,rgba(24,44,78,.86),rgba(9,18,34,.92));
 border:1px solid var(--line-strong);
 box-shadow:var(--shadow);
 backdrop-filter:blur(12px);
}
.hero-panel h3{font-size:15px;letter-spacing:.6px;color:#dff2ff;display:flex;align-items:center;justify-content:space-between}
.hero-panel h3 .badge{font-size:11px}
.gauge-list{margin-top:16px;display:grid;gap:14px}
.gauge-item .gauge-top{display:flex;align-items:center;justify-content:space-between;font-size:13px;color:#cfe1f6;margin-bottom:7px}
.gauge-item .gauge-top b{color:#fff;font-weight:600}
.gauge-track{height:8px;border-radius:99px;background:rgba(255,255,255,.07);overflow:hidden;border:1px solid rgba(120,170,255,.14)}
.gauge-fill{height:100%;border-radius:99px;background:linear-gradient(90deg,var(--primary),var(--accent));box-shadow:0 0 14px rgba(49,224,255,.5)}
.hero-panel .panel-note{margin-top:16px;font-size:12.5px;color:var(--muted);border-top:1px dashed rgba(120,170,255,.22);padding-top:13px}

/* ============ 卡片网格 ============ */
.grid{display:grid;gap:20px}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}
.grid-2{grid-template-columns:repeat(2,1fr)}
.card{
 position:relative;
 background:var(--panel);
 border:1px solid var(--line);
 border-radius:var(--radius);
 padding:22px;
 box-shadow:var(--shadow);
 transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease,background .2s ease;
 backdrop-filter:blur(10px);
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:var(--line-strong);background:rgba(21,38,66,.82)}
.card h3{font-size:17px;margin-bottom:10px;letter-spacing:.3px}
.card p{color:var(--muted);font-size:13.6px}
.card .card-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.card-ico{
 width:42px;height:42px;border-radius:12px;display:grid;place-items:center;
 background:rgba(49,224,255,.1);border:1px solid rgba(49,224,255,.28);
 margin-bottom:14px;color:var(--primary);
}
.card-ico svg{width:21px;height:21px;stroke:currentColor;fill:none;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.cannon-card .meta-row{display:flex;gap:18px;margin-top:16px;padding-top:14px;border-top:1px dashed rgba(120,170,255,.2)}
.cannon-card .meta-row div{font-size:12px;color:var(--muted)}
.cannon-card .meta-row strong{display:block;font-size:15px;color:#eaf6ff;font-weight:700;letter-spacing:.3px}

/* ============ 图文对照 ============ */
.split{display:grid;grid-template-columns:1fr 1fr;gap:36px;align-items:center}
.split-media{position:relative;border-radius:16px;overflow:hidden;border:1px solid var(--line-strong);box-shadow:var(--shadow)}
.split-media img{width:100%;height:100%;object-fit:cover;aspect-ratio:16/11}
.split-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(5,11,24,.05),rgba(5,11,24,.6))}
.split-media figcaption{
 position:absolute;left:16px;bottom:14px;z-index:2;font-size:12.5px;color:#d6ebff;
 background:rgba(6,14,28,.72);border:1px solid rgba(120,170,255,.28);border-radius:8px;padding:5px 11px;
 backdrop-filter:blur(6px);
}
.spec-table{border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:var(--panel-strong)}
.spec-row{display:grid;grid-template-columns:1.1fr .8fr 1fr;gap:12px;padding:14px 18px;font-size:13.4px;border-bottom:1px solid rgba(120,170,255,.12)}
.spec-row:last-child{border-bottom:0}
.spec-row.head{background:rgba(49,224,255,.08);color:#cfeaff;font-weight:600;font-size:12.5px;letter-spacing:1px}
.spec-row span{color:var(--muted)}
.spec-row span:first-child{color:#e6f2ff;font-weight:600}
.spec-row b{color:var(--primary);font-weight:700}

/* ============ 步骤流程 ============ */
.flow{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;counter-reset:step}
.flow-item{
 position:relative;padding:22px 20px 20px;border-radius:var(--radius);
 background:rgba(13,25,46,.8);border:1px solid var(--line);
 transition:border-color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.flow-item:hover{border-color:var(--line-strong);transform:translateY(-3px);box-shadow:var(--shadow)}
.flow-item::before{
 counter-increment:step;content:"0" counter(step);
 display:block;font-size:13px;font-weight:700;letter-spacing:2px;
 color:var(--primary);margin-bottom:12px;
}
.flow-item h3{font-size:15.5px;margin-bottom:8px}
.flow-item p{font-size:13.2px;color:var(--muted)}

/* ============ 场景图卡 ============ */
.scene-card{padding:0;overflow:hidden}
.scene-card img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .35s ease}
.scene-card:hover img{transform:scale(1.05)}
.scene-body{padding:20px 22px 22px}
.scene-body h3{font-size:16.5px;margin-bottom:9px}
.scene-body p{font-size:13.4px;color:var(--muted)}
.scene-body .card-tags{margin-top:14px}

/* ============ 口碑 ============ */
.voice{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.voice-item{
 background:linear-gradient(160deg,rgba(20,36,64,.86),rgba(9,17,32,.9));
 border:1px solid var(--line);border-radius:var(--radius);padding:22px;
 transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.voice-item:hover{transform:translateY(-3px);border-color:var(--line-strong);box-shadow:var(--shadow-hover)}
.voice-item p{font-size:13.8px;color:#c8dbf1}
.voice-user{display:flex;align-items:center;gap:11px;margin-top:16px;padding-top:14px;border-top:1px dashed rgba(120,170,255,.22)}
.voice-avatar{
 width:34px;height:34px;border-radius:50%;display:grid;place-items:center;font-size:13px;font-weight:700;
 color:#02131f;background:linear-gradient(135deg,var(--primary),#2b9cff);
}
.voice-user b{display:block;font-size:13.4px;color:#e8f1ff}
.voice-user small{font-size:12px;color:var(--muted)}

/* ============ 资讯列表 ============ */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.news-card{
 display:flex;flex-direction:column;gap:10px;
 background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);
 padding:20px 22px;
 transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.news-card:hover{transform:translateY(-3px);border-color:var(--line-strong);box-shadow:var(--shadow-hover);background:rgba(21,38,66,.82)}
.news-card h3{font-size:15.5px;line-height:1.5;color:#eaf4ff}
.news-card p{font-size:13.2px;color:var(--muted);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.news-card .news-more{font-size:12.5px;color:var(--primary);margin-top:auto;display:inline-flex;align-items:center;gap:6px}
.empty-note{
 color:var(--muted);font-size:13.6px;padding:26px;border:1px dashed rgba(120,170,255,.26);
 border-radius:var(--radius);background:rgba(12,23,42,.6);text-align:center;
}

/* ============ FAQ ============ */
.faq-wrap{display:grid;gap:14px;max-width:900px;margin:0 auto}
.faq-item{
 background:var(--panel);border:1px solid var(--line);border-radius:var(--radius-sm);
 padding:0;overflow:hidden;transition:border-color .2s ease,background .2s ease;
}
.faq-item[open]{border-color:var(--line-strong);background:rgba(19,34,60,.9)}
.faq-item summary{
 list-style:none;cursor:pointer;padding:17px 20px;font-size:15px;font-weight:600;color:#e9f3ff;
 display:flex;align-items:center;justify-content:space-between;gap:14px;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
 content:"+";font-size:18px;color:var(--primary);line-height:1;flex:0 0 auto;
 transition:transform .2s ease;
}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-item .faq-body{padding:0 20px 18px;font-size:13.8px;color:var(--muted)}

/* ============ CTA 条 ============ */
.cta-band{
 position:relative;overflow:hidden;border-radius:18px;padding:40px 42px;
 background-image:linear-gradient(120deg,rgba(8,18,36,.94),rgba(10,26,48,.86)),url('/assets/images/backpic/back-7.webp');
 background-size:cover;background-position:center;
 border:1px solid var(--line-strong);
 box-shadow:var(--shadow);
 display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
}
.cta-band h2{font-size:25px;letter-spacing:.4px;margin-bottom:10px}
.cta-band p{color:#bed4ec;font-size:14px;max-width:560px}
.cta-band .cta-actions{display:flex;gap:12px;flex-wrap:wrap}

/* ============ 页脚 ============ */
.site-footer{padding:52px 0 26px;border-top:1px solid var(--line);background:linear-gradient(180deg,rgba(6,13,26,.6),rgba(4,9,18,.96))}
.footer-grid{display:grid;grid-template-columns:1.6fr .8fr .8fr;gap:36px}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:15.5px;font-weight:700;margin-bottom:14px}
.footer-about{color:var(--muted);font-size:13.4px;max-width:430px}
.footer-col h4{font-size:14px;color:#dceaff;margin-bottom:14px;letter-spacing:.6px}
.footer-col li{margin-bottom:9px}
.footer-col a{color:var(--muted);font-size:13.4px;transition:color .2s ease,padding-left .2s ease}
.footer-col a:hover{color:var(--primary);padding-left:3px}
.footer-bottom{
 margin-top:34px;padding-top:20px;border-top:1px solid var(--line);
 display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
 font-size:12.6px;color:#7f93ae;
}
.footer-bottom a{color:#9db0cc}
.footer-bottom a:hover{color:var(--primary)}

/* ============ 响应式 ============ */
@media (max-width:1024px){
 .cat-hero-inner{grid-template-columns:1fr;gap:32px}
 .grid-4{grid-template-columns:repeat(2,1fr)}
 .grid-3{grid-template-columns:repeat(2,1fr)}
 .flow{grid-template-columns:repeat(2,1fr)}
 .voice{grid-template-columns:1fr 1fr}
 .news-grid{grid-template-columns:1fr 1fr}
 .split{grid-template-columns:1fr;gap:26px}
 .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:860px){
 .main-nav{
  position:absolute;top:64px;left:0;right:0;
  flex-direction:column;align-items:stretch;gap:6px;
  padding:14px 16px 18px;margin-left:0;
  background:rgba(6,13,26,.98);
  border-bottom:1px solid var(--line);
  box-shadow:0 22px 40px rgba(0,0,0,.55);
  display:none;
 }
 .main-nav.is-open{display:flex}
 .nav-link{padding:12px 14px;font-size:15px;min-height:44px;display:flex;align-items:center}
 .nav-toggle{display:flex}
 .header-actions .btn-sm{display:none}
 .cat-hero h1{font-size:30px}
 .section h2{font-size:22px}
}
@media (max-width:768px){
 .section{padding:48px 0}
 .grid-4,.grid-3,.grid-2{grid-template-columns:1fr}
 .flow{grid-template-columns:1fr}
 .voice{grid-template-columns:1fr}
 .news-grid{grid-template-columns:1fr}
 .cat-hero{padding:44px 0 40px}
 .hero-actions .btn{width:100%}
 .cta-band{padding:30px 24px}
 .cta-band .cta-actions{width:100%}
 .cta-band .cta-actions .btn{flex:1}
 .footer-grid{grid-template-columns:1fr}
 .spec-row{grid-template-columns:1fr 1fr;row-gap:6px;font-size:12.8px}
 .spec-row span:last-child{grid-column:1 / -1}
}
@media (max-width:520px){
 .container{padding:0 16px}
 .cat-hero h1{font-size:25px}
 .brand-text{font-size:14.5px}
 .hero-panel{padding:18px}
 .card{padding:18px}
 .footer-bottom{font-size:12px;flex-direction:column;align-items:flex-start}
}