/* roulang page: index */
:root{
  --bg-0:#060A12;
  --bg-1:#0A101C;
  --bg-2:#0F1725;
  --primary:#2BE3B0;
  --primary-deep:#12A583;
  --accent:#FF8A3D;
  --violet:#7A5CFF;
  --text-1:#E9F1FF;
  --text-2:#94A5C0;
  --text-3:#5C6E8C;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(43,227,176,.35);
  --r-lg:16px;
  --r-md:14px;
  --r-sm:10px;
  --r-pill:999px;
  --shadow-card:0 24px 48px -32px rgba(0,0,0,.9), inset 0 1px 0 rgba(255,255,255,.06);
  --glow:0 0 24px -6px rgba(43,227,176,.55);
  --glow-hover:0 0 26px -4px rgba(43,227,176,.70);
  --gap:24px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  background:var(--bg-0);
  color:var(--text-2);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.85;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none;transition:color .2s ease, border-color .2s ease, background .2s ease, transform .2s ease}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
input{font:inherit}
h1,h2,h3,h4{color:var(--text-1);font-weight:700;line-height:1.3}
h1{font-size:clamp(28px,4.4vw,50px);line-height:1.2}
h2{font-size:clamp(22px,2.6vw,34px)}
h3{font-size:20px;line-height:1.45;font-weight:600}
p{font-size:16px;line-height:1.85;color:var(--text-2)}
ul{list-style:none}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px}
::selection{background:rgba(43,227,176,.28);color:#fff}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 16px}
.num{font-family:Inter,system-ui,sans-serif;font-variant-numeric:tabular-nums}

/* ---------- 背景与区块 ---------- */
.section{padding:96px 0;position:relative}
.section--tint{background:var(--bg-1)}
.grid-bg::before{
  content:"";
  position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);
  background-size:24px 24px;
  pointer-events:none;
}
.section > .container{position:relative;z-index:1}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(6,10,18,.72);
  backdrop-filter:blur(10px);
  border-bottom:1px solid transparent;
  transition:background .25s ease, border-color .25s ease, box-shadow .25s ease;
}
.site-header.scrolled{
  background:rgba(6,10,18,.86);
  backdrop-filter:blur(18px);
  border-bottom:1px solid var(--line-strong);
  box-shadow:0 0 22px -12px rgba(43,227,176,.55);
}
.brand-bar{height:56px}
.brand-inner{height:56px;display:flex;align-items:center;justify-content:space-between;gap:16px}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0}
.logo:hover{color:var(--primary)}
.logo-mark{width:32px;height:32px;flex-shrink:0;color:var(--primary)}
.logo-text{font-size:17px;font-weight:700;color:var(--text-1);letter-spacing:.01em;white-space:nowrap}
.logo-text em{font-style:normal;color:var(--text-3);font-weight:500;font-size:14px}
.brand-actions{display:flex;align-items:center;gap:10px}
.icon-btn{
  width:40px;height:40px;display:flex;align-items:center;justify-content:center;
  border:1px solid var(--line);border-radius:var(--r-sm);color:var(--text-2);
  transition:border-color .2s ease,color .2s ease,transform .2s ease;
}
.icon-btn:hover{border-color:var(--line-strong);color:var(--primary);transform:translateY(-2px)}
.icon-btn svg{width:18px;height:18px}
.hamburger{display:none;width:44px;height:44px;align-items:center;justify-content:center;border:1px solid var(--line);border-radius:var(--r-sm)}
.hamburger span{display:block;width:18px;height:2px;background:var(--text-1);position:relative}
.hamburger span::before,.hamburger span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--text-1)}
.hamburger span::before{top:-6px}
.hamburger span::after{top:6px}

.channel-bar{border-top:1px solid var(--line);transition:height .22s ease}
.channel-inner{
  height:44px;display:flex;align-items:center;gap:22px;
  overflow-x:auto;scrollbar-width:none;
}
.channel-inner::-webkit-scrollbar{display:none}
.site-header.scrolled .channel-inner{height:40px}
.channel{
  position:relative;flex-shrink:0;font-size:14px;color:var(--text-2);
  padding:0 0 3px;white-space:nowrap;
}
.channel:hover{color:var(--primary)}
.channel.is-active{color:var(--primary)}
.channel.is-active::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
  background:var(--primary);border-radius:2px;box-shadow:0 0 10px rgba(43,227,176,.75);
}
.hot-words{display:flex;align-items:center;gap:8px;margin-left:auto;flex-shrink:0}
.chip{
  display:inline-flex;align-items:center;gap:4px;
  padding:3px 10px;border-radius:var(--r-pill);
  font-size:12px;letter-spacing:.04em;
  background:rgba(255,138,61,.12);color:var(--accent);
  border:1px solid rgba(255,138,61,.22);white-space:nowrap;
}
.chip:hover{color:#fff;background:rgba(255,138,61,.24)}
.chip svg{width:11px;height:11px}
.trend-link{display:inline-flex;align-items:center;gap:6px;font-size:13px;color:var(--text-3);white-space:nowrap}
.trend-link:hover{color:var(--primary)}

/* 移动端抽屉 */
.drawer{
  position:fixed;inset:0;z-index:60;background:rgba(6,10,18,.92);
  backdrop-filter:blur(16px);
  display:none;flex-direction:column;padding:20px 20px 40px;
  transform:translateY(-12px);opacity:0;transition:transform .22s ease,opacity .22s ease;
}
.drawer.open{display:flex;transform:translateY(0);opacity:1}
.drawer-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px}
.drawer-close{width:44px;height:44px;border:1px solid var(--line);border-radius:var(--r-sm);color:var(--text-1);font-size:20px;line-height:1}
.drawer-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-bottom:20px}
.drawer-grid a{
  padding:14px 12px;border:1px solid var(--line);border-radius:var(--r-sm);
  background:rgba(255,255,255,.045);font-size:15px;color:var(--text-1);
}
.drawer-grid a:hover{border-color:var(--line-strong);color:var(--primary)}
.drawer-search{display:flex;gap:8px;margin-bottom:20px}
.drawer-search input{
  flex:1;height:44px;padding:0 14px;border-radius:var(--r-sm);
  background:var(--bg-2);border:1px solid var(--line);color:var(--text-1);
}
.drawer-search input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 4px rgba(43,227,176,.16)}
.drawer-words{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:24px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:40px;padding:0 20px;border-radius:var(--r-sm);
  font-size:15px;font-weight:600;line-height:1;
  border:1px solid transparent;white-space:nowrap;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
}
.btn:active{transform:translateY(1px);filter:brightness(.94)}
.btn-sm{height:34px;padding:0 16px;font-size:14px}
.btn-lg{height:48px;padding:0 26px;font-size:16px}
.btn-primary{background:var(--primary);color:#04150F;box-shadow:var(--glow)}
.btn-primary:hover{background:#3BEDBC;color:#04150F;transform:translateY(-2px);box-shadow:var(--glow-hover)}
.btn-secondary{
  background:rgba(255,255,255,.045);color:var(--text-1);
  border-color:var(--line);backdrop-filter:blur(14px);
}
.btn-secondary:hover{color:var(--primary);border-color:var(--line-strong);transform:translateY(-2px)}
.btn-ghost{padding:0 4px;color:var(--primary);font-weight:600}
.btn-ghost .arrow{transition:transform .2s ease;display:inline-block}
.btn-ghost:hover .arrow{transform:translateX(3px)}
.btn[disabled]{opacity:.45;cursor:not-allowed}

/* ---------- 玻璃卡 ---------- */
.card{
  background:rgba(255,255,255,.045);
  backdrop-filter:blur(14px);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  box-shadow:var(--shadow-card);
  transition:transform .2s ease,border-color .2s ease;
}
.card:hover{transform:translateY(-2px);border-color:var(--line-strong)}
.card-pad{padding:24px}

.badge{
  display:inline-flex;align-items:center;
  padding:3px 10px;border-radius:var(--r-pill);
  font-size:12px;letter-spacing:.04em;
  background:var(--bg-2);color:var(--primary);
  border:1px solid var(--line-strong);
}
.badge-accent{background:rgba(255,138,61,.12);color:var(--accent);border-color:rgba(255,138,61,.28)}
.dot-badge{display:inline-flex;align-items:center;gap:6px;font-size:13px;color:var(--text-2)}
.dot-badge i{width:7px;height:7px;border-radius:50%;background:var(--primary);box-shadow:0 0 8px rgba(43,227,176,.8);display:inline-block}
.num-badge{
  display:inline-flex;align-items:center;justify-content:center;
  width:40px;height:40px;border-radius:12px;flex-shrink:0;
  background:var(--bg-2);border:1px solid var(--line-strong);
  color:var(--primary);font-weight:700;font-size:15px;
  font-family:Inter,system-ui,sans-serif;font-variant-numeric:tabular-nums;
}

/* ---------- 通用板块标题 ---------- */
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;flex-wrap:wrap}
.section-head .eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:12px;letter-spacing:.08em;
  color:var(--primary);text-transform:uppercase;margin-bottom:12px;
}
.section-head .eyebrow::before{content:"";width:24px;height:2px;background:var(--primary);border-radius:2px}
.section-head p{max-width:640px;margin-top:10px;font-size:15px}
.section-title-bar{position:relative;padding-left:16px}
.section-title-bar::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:2px;
  background:linear-gradient(180deg,var(--primary),var(--primary-deep));
}

/* ---------- Hero ---------- */
.hero{
  position:relative;overflow:hidden;
  padding:88px 0 72px;
  background-image:url("/assets/images/backpic/back-1.webp");
  background-size:cover;background-position:center;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(6,10,18,.94) 0%,rgba(6,10,18,.86) 45%,rgba(6,10,18,.62) 100%);
}
.hero::after{
  content:"";position:absolute;left:-10%;bottom:-40%;width:520px;height:520px;
  background:radial-gradient(circle,rgba(43,227,176,.18) 0%,transparent 68%);
  pointer-events:none;
}
.hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:7fr 5fr;gap:40px;align-items:center}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;padding:5px 12px;margin-bottom:20px;
  border-radius:var(--r-pill);border:1px solid var(--line-strong);
  background:rgba(43,227,176,.08);color:var(--primary);font-size:13px;
}
.hero h1{margin-bottom:18px}
.hero h1 span{color:var(--primary)}
.hero-sub{font-size:17px;line-height:1.8;max-width:520px;color:var(--text-2)}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin:30px 0 26px}
.hero-metrics{display:flex;flex-wrap:wrap;gap:0 24px;padding-top:20px;border-top:1px solid var(--line)}
.hero-metrics li{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--text-2);padding:6px 0}
.hero-metrics svg{width:16px;height:16px;color:var(--primary);flex-shrink:0}
.hero-visual{position:relative}
.hero-visual .frame{
  position:relative;border-radius:var(--r-lg);overflow:hidden;
  border:1px solid var(--line);box-shadow:0 40px 70px -40px rgba(0,0,0,.95);
}
.hero-visual .frame img{width:100%;height:320px;object-fit:cover}
.hero-visual .frame::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(6,10,18,.15),rgba(6,10,18,.72))}
.hero-visual .frame-tag{
  position:absolute;left:16px;bottom:16px;z-index:2;
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 12px;border-radius:var(--r-pill);
  background:rgba(6,10,18,.7);border:1px solid var(--line-strong);
  font-size:13px;color:var(--text-1);
}
.hero-trend{
  display:flex;align-items:center;gap:12px;margin-top:28px;padding:12px 16px;
  border:1px solid var(--line);border-radius:var(--r-md);
  background:rgba(255,255,255,.04);font-size:14px;color:var(--text-2);
}
.hero-trend strong{color:var(--text-1);font-weight:600}
.hero-trend .chip{margin-left:auto}
.hero-words{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}

/* ---------- 价值主张 ---------- */
.value-wrap{display:grid;grid-template-columns:5fr 7fr;gap:40px;align-items:start}
.value-left{padding:28px;border-radius:var(--r-lg);background:var(--bg-1);border:1px solid var(--line)}
.value-left h2{margin-bottom:14px}
.value-list{display:flex;flex-direction:column;gap:20px}
.value-item{
  display:flex;gap:20px;padding:24px;align-items:flex-start;
  background:rgba(255,255,255,.045);border:1px solid var(--line);border-radius:var(--r-md);
  backdrop-filter:blur(14px);box-shadow:var(--shadow-card);
}
.value-item:nth-child(2){transform:translateY(24px)}
.value-item h3{margin-bottom:6px;font-size:19px}
.value-item p{font-size:15px;line-height:1.8}

/* ---------- 功能分组 ---------- */
.feature-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:24px}
.f-card{grid-column:span 12;overflow:hidden;display:flex;flex-direction:column}
.f-card.col-7{grid-column:span 7}
.f-card.col-5{grid-column:span 5}
.f-thumb{position:relative;height:190px;overflow:hidden}
.f-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.f-card:hover .f-thumb img{transform:scale(1.04)}
.f-thumb::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(6,10,18,.18),rgba(6,10,18,.62))}
.f-tag{
  position:absolute;left:16px;top:16px;z-index:2;
  padding:4px 10px;border-radius:var(--r-pill);font-size:12px;letter-spacing:.04em;
  background:rgba(122,92,255,.22);color:#CFC6FF;border:1px solid rgba(122,92,255,.45);
}
.f-body{padding:24px;display:flex;flex-direction:column;gap:12px;flex:1}
.f-body p{font-size:15px;line-height:1.8}
.f-points{display:flex;flex-direction:column;gap:8px;margin-top:auto;padding-top:12px;border-top:1px solid var(--line)}
.f-points li{display:flex;gap:10px;font-size:14px;color:var(--text-2);align-items:flex-start}
.f-points li::before{content:"";width:7px;height:7px;margin-top:8px;flex-shrink:0;background:var(--primary);border-radius:2px}

/* ---------- 使用场景步骤 ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:0;position:relative}
.step{padding:0 18px;position:relative}
.step:not(:last-child)::after{
  content:"";position:absolute;top:22px;right:-1px;width:calc(100% - 60px);
  height:1px;background:linear-gradient(90deg,var(--line-strong),transparent);
}
.step-head{display:flex;align-items:center;gap:14px;margin-bottom:14px}
.step-num{
  width:44px;height:44px;flex-shrink:0;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  border:1px solid var(--line-strong);background:var(--bg-2);
  color:var(--primary);font-weight:700;font-variant-numeric:tabular-nums;
}
.step h3{font-size:17px}
.step p{font-size:14px;line-height:1.8}

/* ---------- 案例 ---------- */
.case-row{
  display:grid;grid-template-columns:5fr 7fr;gap:32px;align-items:center;
  padding:28px;margin-bottom:24px;border-radius:var(--r-lg);
  background:rgba(255,255,255,.045);border:1px solid var(--line);
  backdrop-filter:blur(14px);box-shadow:var(--shadow-card);
  transition:border-color .2s ease,transform .2s ease;
}
.case-row:hover{border-color:var(--line-strong);transform:translateY(-2px)}
.case-row.reverse{grid-template-columns:7fr 5fr}
.case-row.reverse .case-media{order:2}
.case-media{position:relative;border-radius:var(--r-md);overflow:hidden}
.case-media img{width:100%;height:230px;object-fit:cover}
.case-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(6,10,18,.12),rgba(6,10,18,.58))}
.case-data{
  position:absolute;right:14px;top:14px;z-index:2;
  padding:6px 12px;border-radius:var(--r-pill);font-size:13px;font-weight:600;
  background:rgba(255,138,61,.16);color:var(--accent);border:1px solid rgba(255,138,61,.42);
}
.case-body h3{margin-bottom:10px}
.case-body p{font-size:15px;line-height:1.85}

/* ---------- 价格档位 ---------- */
.plan-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:stretch}
.plan{position:relative;padding:28px 24px;display:flex;flex-direction:column;gap:16px}
.plan--hot{
  border-color:rgba(255,138,61,.5);
  box-shadow:var(--shadow-card),0 0 0 1px rgba(255,138,61,.25);
}
.plan--hot::before{
  content:"";position:absolute;left:0;right:0;top:0;height:3px;
  background:var(--accent);border-radius:var(--r-md) var(--r-md) 0 0;
}
.plan-name{font-size:15px;color:var(--text-2);letter-spacing:.04em}
.plan-price{font-size:34px;font-weight:700;color:var(--text-1);font-family:Inter,system-ui,sans-serif;font-variant-numeric:tabular-nums;line-height:1.1}
.plan-price small{font-size:14px;font-weight:400;color:var(--text-3);margin-left:6px}
.plan ul{display:flex;flex-direction:column;gap:10px;margin:4px 0 8px}
.plan ul li{display:flex;gap:10px;font-size:14px;color:var(--text-2)}
.plan ul li::before{content:"";width:6px;height:6px;margin-top:9px;flex-shrink:0;background:var(--primary);border-radius:50%}
.plan .btn{width:100%;margin-top:auto}
.compare-rows{margin-top:32px;border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden}
.compare-row{
  display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:12px;
  padding:14px 20px;font-size:14px;border-bottom:1px solid var(--line);
}
.compare-row:last-child{border-bottom:0}
.compare-row.head{background:var(--bg-1);color:var(--text-1);font-weight:600}
.compare-row span:first-child{color:var(--text-2)}
.compare-row.head span:first-child{color:var(--text-1)}

/* ---------- 最新信息（CMS 区） ---------- */
.news-head-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;color:var(--primary)}
.news-head-link:hover{text-decoration:underline;text-underline-offset:3px}
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.news-card{padding:22px;display:flex;flex-direction:column;gap:12px}
.news-swatch{
  width:44px;height:44px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  background:var(--bg-2);border:1px solid var(--line-strong);color:var(--primary);
  font-weight:700;font-size:17px;
}
.news-card h3{font-size:17px;line-height:1.5}
.news-card h3 a:hover{color:var(--primary)}
.news-card p{
  font-size:14px;line-height:1.75;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{display:flex;align-items:center;gap:12px;margin-top:auto;padding-top:12px;border-top:1px solid var(--line);font-size:13px;color:var(--text-3);flex-wrap:wrap}
.empty-state{
  padding:56px 24px;text-align:center;border-radius:var(--r-md);
  border:1px dashed var(--line);background:rgba(255,255,255,.03);
}
.empty-state svg{width:40px;height:40px;color:var(--text-3);margin:0 auto 14px}
.empty-state p{font-size:15px;margin-bottom:18px}

/* ---------- FAQ ---------- */
.faq-list{display:flex;flex-direction:column;gap:14px}
.faq-item{
  border:1px solid var(--line);border-radius:var(--r-md);
  background:rgba(255,255,255,.045);backdrop-filter:blur(14px);
  box-shadow:var(--shadow-card);overflow:hidden;
}
.faq-q{
  width:100%;display:flex;align-items:center;gap:14px;
  padding:18px 22px;text-align:left;font-size:17px;font-weight:600;color:var(--text-1);
}
.faq-q::before{content:"";width:3px;height:20px;background:var(--primary);border-radius:2px;flex-shrink:0}
.faq-q .sign{margin-left:auto;color:var(--primary);font-size:20px;line-height:1;flex-shrink:0}
.faq-a{display:grid;grid-template-rows:0fr;transition:grid-template-rows .18s ease}
.faq-item.open .faq-a{grid-template-rows:1fr}
.faq-a > div{overflow:hidden}
.faq-a p{padding:0 22px 20px 39px;font-size:15px;line-height:1.8}

/* ---------- 底部 CTA ---------- */
.cta-band{
  position:relative;padding:44px 40px;border-radius:var(--r-lg);
  border:1px solid var(--line-strong);
  background:linear-gradient(120deg,rgba(43,227,176,.10),rgba(255,255,255,.03) 55%);
  box-shadow:var(--shadow-card);
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
}
.cta-band h2{font-size:clamp(20px,2.2vw,28px);margin-bottom:8px}
.cta-band p{font-size:15px}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--bg-1);border-top:1px solid var(--line);padding:64px 0 28px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:32px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-brand svg{width:28px;height:28px;color:var(--primary)}
.footer-brand span{font-size:16px;font-weight:700;color:var(--text-1)}
.footer-col h3{font-size:14px;letter-spacing:.06em;color:var(--text-1);margin-bottom:14px}
.footer-col ul{display:flex;flex-direction:column;gap:9px}
.footer-col li,.footer-col p{font-size:14px;color:var(--text-3);line-height:1.8}
.footer-col a{color:var(--text-2);font-size:14px}
.footer-col a:hover{color:var(--primary);text-decoration:underline;text-underline-offset:3px}
.footer-bottom{
  margin-top:40px;padding-top:20px;border-top:1px solid var(--line);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--text-3);
}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .section{padding:72px 0}
  .hero-inner{grid-template-columns:1fr;gap:32px}
  .hero-visual .frame img{height:260px}
  .value-wrap{grid-template-columns:1fr;gap:28px}
  .value-item:nth-child(2){transform:none}
  .f-card.col-7,.f-card.col-5{grid-column:span 12}
  .steps{grid-template-columns:repeat(2,1fr);gap:24px}
  .step{padding:0}
  .step::after{display:none}
  .case-row,.case-row.reverse{grid-template-columns:1fr}
  .case-row.reverse .case-media{order:0}
  .plan-grid{grid-template-columns:1fr}
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .hot-words{display:none}
}
@media (max-width:768px){
  .channel-bar{display:none}
  .hamburger{display:flex}
  .section{padding:56px 0}
  .hero{padding:56px 0 48px}
  .hero-metrics{gap:0 18px}
  .news-grid{grid-template-columns:1fr}
  .compare-row{grid-template-columns:1.4fr 1fr;font-size:13px}
  .compare-row span:nth-child(4){display:none}
  .compare-row.head span:nth-child(4){display:none}
  .cta-band{padding:28px 22px}
  .footer-grid{grid-template-columns:1fr}
}
@media (max-width:520px){
  .logo-text em{display:none}
  .hero-visual .frame img{height:210px}
  .steps{grid-template-columns:1fr}
  .compare-row{grid-template-columns:1fr 1fr}
  .faq-q{font-size:15px;padding:16px 16px}
  .faq-a p{padding:0 16px 18px 33px}
}

/* roulang page: article */
:root{
  --bg-0:#060A12;--bg-1:#0A101C;--bg-2:#0F1725;
  --primary:#2BE3B0;--primary-deep:#12A583;--accent:#FF8A3D;--violet:#7A5CFF;
  --text-1:#E9F1FF;--text-2:#94A5C0;--text-3:#5C6E8C;
  --line:rgba(255,255,255,.08);--line-strong:rgba(43,227,176,.35);
  --r-lg:16px;--r-card:14px;--r-btn:10px;--r-chip:999px;
  --glass:rgba(255,255,255,.045);
  --shadow-card:0 24px 48px -32px rgba(0,0,0,.9),inset 0 1px 0 rgba(255,255,255,.06);
  --glow:0 0 24px -6px rgba(43,227,176,.55);
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
  --font-num:Inter,system-ui,-apple-system,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--bg-0);color:var(--text-2);
  font-family:var(--font-cn);font-size:16px;line-height:1.85;
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color .2s ease,border-color .2s ease,background .2s ease,transform .2s ease}
a:hover{color:var(--primary);text-decoration:underline;text-underline-offset:3px}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;color:var(--text-1);font-weight:700}
p{margin:0 0 1em}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 16px}
@media(min-width:768px){.container{padding:0 24px}}
@media(min-width:1024px){.container{padding:0 32px}}

/* ============ 头部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(6,10,18,.72);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid transparent;
  transition:background .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.site-header.is-scrolled{
  background:rgba(6,10,18,.86);
  backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
  border-bottom-color:var(--line-strong);
  box-shadow:0 18px 40px -34px rgba(43,227,176,.55);
}
.topbar{display:flex;align-items:center;justify-content:space-between;gap:16px;height:56px}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;color:var(--text-1);letter-spacing:.01em}
.brand:hover{text-decoration:none;color:var(--text-1)}
.brand svg{width:32px;height:32px;color:var(--primary);flex:none}
.brand-text{font-size:16px;white-space:nowrap}
.brand-text em{color:var(--text-3);font-style:normal;margin:0 2px}
.topbar-actions{display:flex;align-items:center;gap:10px}
.icon-btn{
  width:38px;height:38px;display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--line);border-radius:var(--r-btn);background:var(--glass);color:var(--text-2);
  transition:all .2s ease;
}
.icon-btn svg{width:18px;height:18px}
.icon-btn:hover{color:var(--primary);border-color:var(--line-strong);transform:translateY(-2px)}
.menu-btn{display:inline-flex}
@media(min-width:1024px){.menu-btn{display:none}}
@media(max-width:520px){.brand-text{font-size:14px}.topbar-actions .btn{display:none}}
.channel-bar{border-top:1px solid var(--line);transition:all .25s ease}
.site-header.is-scrolled .channel-bar{border-top-color:var(--line)}
.channel-inner{display:flex;align-items:center;gap:22px;height:44px;overflow-x:auto;scrollbar-width:none}
.channel-inner::-webkit-scrollbar{display:none}
.site-header.is-scrolled .channel-inner{height:40px}
.channel{
  position:relative;flex:none;font-size:14px;color:var(--text-2);padding:3px 0;
  transition:color .2s ease;
}
.channel:hover{color:var(--primary);text-decoration:none}
.channel.is-active{color:var(--primary);font-weight:600}
.channel.is-active::after{
  content:"";position:absolute;left:0;right:0;bottom:-4px;height:2px;border-radius:2px;
  background:var(--primary);box-shadow:0 0 10px rgba(43,227,176,.75);
}
@media(max-width:1023px){.channel-bar{display:none}}
.hot-words{display:flex;align-items:center;gap:10px;margin-left:auto;flex:none}
.chip{
  display:inline-flex;align-items:center;gap:5px;padding:4px 11px;border-radius:var(--r-chip);
  font-size:12px;letter-spacing:.04em;color:var(--accent);
  background:rgba(255,138,61,.12);border:1px solid rgba(255,138,61,.22);
  transition:all .2s ease;white-space:nowrap;
}
.chip svg{width:11px;height:11px}
.chip:hover{background:rgba(255,138,61,.2);color:var(--accent);text-decoration:none;transform:translateY(-2px)}
.trend-link{font-size:13px;color:var(--text-2);white-space:nowrap}
.trend-link:hover{color:var(--primary);text-decoration:none}

/* 移动抽屉 */
.drawer{
  position:fixed;inset:56px 0 0 0;z-index:49;background:var(--bg-1);
  backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
  transform:translateY(-12px);opacity:0;visibility:hidden;pointer-events:none;
  transition:opacity .22s ease,transform .22s ease,visibility .22s ease;
  overflow-y:auto;padding:24px 16px 48px;
}
.drawer.is-open{opacity:1;visibility:visible;pointer-events:auto;transform:translateY(0)}
@media(min-width:1024px){.drawer{display:none}}
.drawer-search{display:flex;gap:8px;margin-bottom:22px}
.drawer-search input{
  flex:1;height:44px;padding:0 14px;border-radius:var(--r-btn);
  background:var(--bg-2);border:1px solid var(--line);color:var(--text-1);font-size:14px;
}
.drawer-search input::placeholder{color:var(--text-3)}
.drawer-search input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 4px rgba(43,227,176,.16)}
.drawer-title{font-size:12px;letter-spacing:.08em;color:var(--text-3);margin:18px 0 10px;text-transform:uppercase}
.drawer-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.drawer-grid a{
  padding:12px 14px;border-radius:var(--r-card);background:var(--glass);
  border:1px solid var(--line);font-size:14px;color:var(--text-1);
}
.drawer-grid a:hover{border-color:var(--line-strong);text-decoration:none;color:var(--primary)}
.drawer-hot{display:flex;flex-wrap:wrap;gap:8px}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:40px;padding:0 18px;border-radius:var(--r-btn);
  font-size:14px;font-weight:600;line-height:1;letter-spacing:.02em;
  transition:all .2s ease;white-space:nowrap;text-decoration:none;
}
.btn:hover{text-decoration:none;transform:translateY(-2px)}
.btn:active{transform:translateY(1px);filter:brightness(.94)}
.btn-primary{background:var(--primary);color:#04150F;box-shadow:var(--glow)}
.btn-primary:hover{background:#3EF0BD;color:#04150F;box-shadow:0 0 28px -4px rgba(43,227,176,.7)}
.btn-secondary{background:var(--glass);border:1px solid var(--line);color:var(--text-1)}
.btn-secondary:hover{border-color:var(--line-strong);color:var(--primary)}
.btn-ghost{background:none;color:var(--primary);padding:0 4px;height:auto}
.btn-ghost span{transition:transform .2s ease;display:inline-block}
.btn-ghost:hover span{transform:translateX(3px)}
.btn-sm{height:32px;padding:0 14px;font-size:13px}
.btn-lg{height:48px;padding:0 24px;font-size:15px}

/* ============ 面包屑 ============ */
.breadcrumb{
  display:flex;align-items:center;gap:8px;flex-wrap:nowrap;overflow:hidden;
  padding:20px 0 0;font-size:13px;color:var(--text-3);
}
.breadcrumb a{color:var(--text-3)}
.breadcrumb a:hover{color:var(--primary);text-decoration:none}
.breadcrumb .sep{color:var(--text-3);opacity:.6}
.breadcrumb .current{
  color:var(--text-3);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:46vw;
}

/* ============ 文章布局 ============ */
.article-main{padding-bottom:96px}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr);gap:36px;padding-top:26px}
@media(min-width:1024px){
  .article-layout{grid-template-columns:minmax(0,1fr) 320px;gap:40px}
  .article-layout .article-body{grid-column:1;grid-row:1}
  .article-layout .article-side{grid-column:2;grid-row:1/span 2}
  .article-layout .related-block{grid-column:1;grid-row:2}
}
.article-head{padding:6px 0 22px;border-bottom:1px solid var(--line)}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:var(--r-chip);
  font-size:12px;letter-spacing:.04em;color:var(--primary);
  background:var(--bg-2);border:1px solid var(--line-strong);
}
.badge::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--primary);box-shadow:0 0 8px rgba(43,227,176,.8)}
.badge-accent{color:var(--accent);border-color:rgba(255,138,61,.28);background:rgba(255,138,61,.12)}
.badge-accent::before{background:var(--accent);box-shadow:0 0 8px rgba(255,138,61,.8)}
.article-head h1{
  font-size:clamp(26px,3.6vw,40px);line-height:1.3;margin:16px 0 14px;
  letter-spacing:-.01em;word-break:break-word;
}
.article-meta{
  display:flex;align-items:center;flex-wrap:wrap;gap:10px 18px;
  font-size:14px;color:var(--text-3);
}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:var(--text-3);opacity:.6}
.article-meta .num{font-family:var(--font-num);font-variant-numeric:tabular-nums}
.article-cover{margin:26px 0 0;border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line);position:relative}
.article-cover img{width:100%;height:clamp(180px,30vw,340px);object-fit:cover}
.article-cover::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(6,10,18,.15) 0%,rgba(6,10,18,.55) 100%);
  pointer-events:none;
}
.article-cover figcaption{
  position:absolute;left:16px;bottom:12px;z-index:2;font-size:13px;color:rgba(233,241,255,.78);
}

/* ============ 正文排版 ============ */
.prose{max-width:780px;padding:30px 0 8px;font-size:16px;line-height:1.9;color:var(--text-2)}
.prose>*:first-child{margin-top:0}
.prose p{margin:0 0 1.2em}
.prose h2{
  position:relative;color:var(--text-1);font-size:clamp(20px,2.2vw,26px);
  line-height:1.4;margin:2.1em 0 .85em;padding-left:16px;
}
.prose h2::before{
  content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:4px;border-radius:2px;
  background:var(--primary);box-shadow:0 0 12px rgba(43,227,176,.5);
}
.prose h3{
  position:relative;color:var(--text-1);font-size:19px;font-weight:600;
  line-height:1.45;margin:1.7em 0 .7em;padding-left:16px;
}
.prose h3::before{
  content:"";position:absolute;left:0;top:.55em;width:8px;height:8px;border-radius:2px;background:var(--primary);
}
.prose h4{color:var(--text-1);font-size:17px;margin:1.4em 0 .6em}
.prose a{color:var(--primary);text-decoration:underline;text-underline-offset:3px}
.prose a:hover{color:#3EF0BD}
.prose ul,.prose ol{margin:0 0 1.2em;padding-left:0}
.prose ul li{position:relative;padding-left:20px;margin:.5em 0}
.prose ul li::before{
  content:"";position:absolute;left:0;top:.72em;width:7px;height:7px;border-radius:2px;
  background:var(--primary);opacity:.9;
}
.prose ol{counter-reset:item;padding-left:0}
.prose ol li{position:relative;padding-left:28px;margin:.5em 0;counter-increment:item}
.prose ol li::before{
  content:counter(item,decimal-leading-zero);position:absolute;left:0;top:0;
  font-family:var(--font-num);font-size:13px;color:var(--primary);font-weight:600;
}
.prose blockquote{
  margin:1.4em 0;padding:14px 20px;border-left:3px solid var(--primary);
  background:rgba(43,227,176,.06);border-radius:0 12px 12px 0;color:var(--text-1);
}
.prose blockquote p:last-child{margin-bottom:0}
.prose img{border-radius:12px;border:1px solid var(--line);margin:1.2em 0}
.prose figure{margin:1.4em 0}
.prose figcaption{font-size:13px;color:var(--text-3);text-align:center;margin-top:8px}
.prose table{
  display:block;width:100%;overflow-x:auto;border-collapse:collapse;margin:1.4em 0;
  border:1px solid var(--line);border-radius:12px;
}
.prose th,.prose td{
  padding:10px 14px;border-bottom:1px solid var(--line);text-align:left;
  font-size:14px;white-space:nowrap;
}
.prose th{background:var(--bg-2);color:var(--text-1);font-weight:600}
.prose tr:last-child td{border-bottom:0}
.prose pre{
  background:var(--bg-2);border:1px solid var(--line);border-radius:12px;
  padding:16px 18px;overflow-x:auto;font-size:14px;line-height:1.7;
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;color:var(--text-1);
}
.prose code{
  background:var(--bg-2);border:1px solid var(--line);border-radius:6px;
  padding:2px 6px;font-size:14px;
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;color:var(--primary);
}
.prose pre code{background:none;border:0;padding:0;color:inherit}
.prose hr{border:0;border-top:1px solid var(--line);margin:2em 0}

/* 空态 */
.empty-state{
  margin:32px 0;padding:48px 24px;text-align:center;
  background:var(--glass);border:1px dashed var(--line);border-radius:var(--r-lg);
}
.empty-state svg{width:44px;height:44px;color:var(--text-3);margin:0 auto 14px}
.empty-state h2{font-size:20px;margin-bottom:8px}
.empty-state p{font-size:14px;color:var(--text-3);margin-bottom:18px}

/* 标签行 */
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin:30px 0 0;padding-top:22px;border-top:1px solid var(--line)}
.tag{
  display:inline-flex;align-items:center;padding:5px 13px;border-radius:var(--r-chip);
  font-size:12px;letter-spacing:.04em;color:var(--text-2);background:var(--bg-2);border:1px solid var(--line);
  transition:all .2s ease;
}
.tag:hover{color:var(--primary);border-color:var(--line-strong);text-decoration:none;transform:translateY(-2px)}

/* 上下篇玻璃卡 */
.pager{display:grid;grid-template-columns:1fr;gap:16px;margin-top:28px}
@media(min-width:640px){.pager{grid-template-columns:1fr 1fr}}
.pager a{
  display:block;padding:18px 20px;border-radius:var(--r-card);
  background:var(--glass);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border:1px solid var(--line);box-shadow:var(--shadow-card);transition:all .2s ease;
}
.pager a:hover{border-color:var(--line-strong);transform:translateY(-2px);text-decoration:none}
.pager .k{font-size:12px;letter-spacing:.06em;color:var(--text-3);display:block;margin-bottom:6px}
.pager .t{font-size:15px;color:var(--text-1);font-weight:600;line-height:1.5}
.pager a:hover .t{color:var(--primary)}
.pager .align-right{text-align:right}

/* 相关推荐 */
.related-block{margin-top:52px}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:20px}
.sec-head h2{font-size:clamp(20px,2.4vw,28px);line-height:1.3;position:relative;padding-left:14px}
.sec-head h2::before{
  content:"";position:absolute;left:0;top:.2em;bottom:.2em;width:3px;border-radius:2px;background:var(--primary);
}
.sec-head .more{font-size:14px;color:var(--primary);white-space:nowrap}
.sec-head .more:hover{text-decoration:none;opacity:.85}
.list-cards{display:grid;grid-template-columns:1fr;gap:14px}
.list-card{
  display:grid;grid-template-columns:96px minmax(0,1fr);gap:16px;padding:14px;
  border-radius:var(--r-card);background:var(--glass);
  border:1px solid var(--line);box-shadow:var(--shadow-card);transition:all .2s ease;
}
.list-card:hover{transform:translateY(-2px);border-color:var(--line-strong);text-decoration:none}
.list-card .thumb{
  width:96px;height:64px;border-radius:10px;overflow:hidden;position:relative;background:var(--bg-2);
}
.list-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.list-card:hover .thumb img{transform:scale(1.06)}
.list-card .thumb::after{
  content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(6,10,18,.1),rgba(6,10,18,.45));
}
.list-card .t{font-size:15px;font-weight:600;color:var(--text-1);line-height:1.5;margin-bottom:4px}
.list-card:hover .t{color:var(--primary)}
.list-card .s{font-size:13px;color:var(--text-3);line-height:1.6;
  display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden}
.list-card .m{display:flex;align-items:center;gap:10px;margin-top:6px;font-size:12px;color:var(--text-3)}
.mini-badge{
  padding:2px 9px;border-radius:var(--r-chip);font-size:12px;letter-spacing:.04em;
  color:var(--primary);background:var(--bg-2);border:1px solid var(--line-strong);
}

/* 侧栏 */
.article-side{display:flex;flex-direction:column;gap:20px}
@media(min-width:1024px){.article-side{position:sticky;top:108px;align-self:start}}
.side-card{
  padding:20px;border-radius:var(--r-card);background:var(--glass);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border:1px solid var(--line);box-shadow:var(--shadow-card);
}
.side-card h3{
  font-size:15px;color:var(--text-1);margin-bottom:14px;display:flex;align-items:center;gap:8px;
}
.side-card h3::before{content:"";width:3px;height:14px;border-radius:2px;background:var(--primary)}
.rank-list li+li{margin-top:10px;padding-top:10px;border-top:1px solid var(--line)}
.rank-list a{display:grid;grid-template-columns:26px minmax(0,1fr);gap:8px;align-items:start;font-size:14px;color:var(--text-2);line-height:1.6}
.rank-list a:hover{color:var(--primary);text-decoration:none}
.rank-list .n{
  font-family:var(--font-num);font-variant-numeric:tabular-nums;font-size:13px;font-weight:700;color:var(--primary);
  opacity:.85;
}
.rank-list li:nth-child(1) .n,.rank-list li:nth-child(2) .n{color:var(--accent);opacity:1}
.cat-links{display:flex;flex-direction:column;gap:8px}
.cat-links a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:11px 14px;border-radius:var(--r-btn);font-size:14px;color:var(--text-2);
  background:var(--bg-2);border:1px solid var(--line);transition:all .2s ease;
}
.cat-links a:hover{color:var(--primary);border-color:var(--line-strong);text-decoration:none;transform:translateY(-2px)}
.cat-links a span{color:var(--text-3);font-size:13px}
.side-cta{display:flex;flex-direction:column;gap:12px}
.side-cta p{font-size:14px;color:var(--text-3);margin:0}
.side-cta .btn{width:100%}

/* ============ 页脚 ============ */
.site-footer{margin-top:24px;border-top:1px solid var(--line);background:var(--bg-1);padding:56px 0 24px}
.footer-grid{display:grid;grid-template-columns:1fr;gap:30px}
@media(min-width:640px){.footer-grid{grid-template-columns:1fr 1fr}}
@media(min-width:1024px){.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px}}
.footer-col h3{font-size:14px;color:var(--text-1);margin-bottom:14px;letter-spacing:.02em}
.footer-col ul li{margin-bottom:9px}
.footer-col a,.footer-col li{font-size:13px;color:var(--text-3);line-height:1.7}
.footer-col a:hover{color:var(--primary);text-decoration:none}
.footer-col p{font-size:13px;color:var(--text-3);max-width:320px;line-height:1.8}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:12px;color:var(--text-1);font-weight:700}
.footer-brand svg{width:28px;height:28px;color:var(--primary);flex:none}
.footer-brand span{font-size:15px}
.footer-bottom{
  margin-top:38px;padding-top:18px;border-top:1px solid var(--line);
  display:flex;flex-direction:column;gap:8px;font-size:13px;color:var(--text-3);
}
@media(min-width:768px){.footer-bottom{flex-direction:row;justify-content:space-between;align-items:center}}
.grid-bg{
  background-image:linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);
  background-size:24px 24px;
}
@media(max-width:520px){
  .article-meta{font-size:13px;gap:8px 12px}
  .btn-lg{height:46px}
  .list-card{grid-template-columns:80px minmax(0,1fr);gap:12px}
  .list-card .thumb{width:80px;height:58px}
}

/* roulang page: category1 */
:root{
  --bg-0:#060A12;
  --bg-1:#0A101C;
  --bg-2:#0F1725;
  --primary:#2BE3B0;
  --primary-deep:#12A583;
  --accent:#FF8A3D;
  --violet:#7A5CFF;
  --text-1:#E9F1FF;
  --text-2:#94A5C0;
  --text-3:#5C6E8C;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(43,227,176,.35);
  --radius-lg:16px;
  --radius-md:14px;
  --radius-sm:10px;
  --radius-pill:999px;
  --shadow:0 24px 48px -32px rgba(0,0,0,.9), inset 0 1px 0 rgba(255,255,255,.06);
  --glow:0 0 24px -6px rgba(43,227,176,.55);
  --glow-hover:0 0 28px -4px rgba(43,227,176,.7);
  --sect:96px;
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
  --font-num:Inter,system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--text-2);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color .18s ease, border-color .18s ease, background-color .18s ease, transform .18s ease}
a:hover{color:var(--primary);text-decoration:underline;text-underline-offset:3px}
button{font-family:inherit;font-size:inherit;color:inherit;background:none;border:0;cursor:pointer}
h1,h2,h3,h4{margin:0;color:var(--text-1);font-weight:700;letter-spacing:.01em}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 16px}
@media (min-width:768px){.container{padding:0 24px}}
@media (min-width:1024px){.container{padding:0 32px}}
.num{font-family:var(--font-num);font-variant-numeric:tabular-nums}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(6,10,18,.72);
  backdrop-filter:blur(10px);
  border-bottom:1px solid transparent;
  transition:background-color .25s ease, border-color .25s ease;
}
.site-header.is-scrolled{
  background:rgba(6,10,18,.86);
  backdrop-filter:blur(18px);
  border-bottom:1px solid var(--line-strong);
}
.brand-bar{height:56px;display:flex;align-items:center;justify-content:space-between;gap:16px}
.brand{display:flex;align-items:center;gap:10px;min-width:0}
.brand svg{width:32px;height:32px;color:var(--primary);flex:0 0 auto}
.brand-name{
  font-size:16px;font-weight:700;color:var(--text-1);white-space:nowrap;
  overflow:hidden;text-overflow:ellipsis;
}
.brand-name em{font-style:normal;color:var(--primary)}
.brand-tail{color:var(--text-3);font-weight:500}
.brand-actions{display:flex;align-items:center;gap:10px}
.icon-btn{
  width:40px;height:40px;border-radius:var(--radius-sm);
  display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--line);color:var(--text-2);
  background:rgba(255,255,255,.03);
}
.icon-btn svg{width:18px;height:18px}
.icon-btn:hover{color:var(--primary);border-color:var(--line-strong);transform:translateY(-2px)}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--radius-sm);font-weight:600;line-height:1;
  transition:transform .18s ease, box-shadow .18s ease, background-color .18s ease, color .18s ease, border-color .18s ease;
  white-space:nowrap;
}
.btn-sm{height:32px;padding:0 14px;font-size:13px}
.btn-md{height:40px;padding:0 18px;font-size:14px}
.btn-lg{height:48px;padding:0 26px;font-size:15px}
.btn-primary{background:var(--primary);color:#04150F;box-shadow:var(--glow)}
.btn-primary:hover{background:#3FEFC0;color:#04150F;box-shadow:var(--glow-hover);transform:translateY(-2px);text-decoration:none}
.btn-primary:active{transform:translateY(1px);filter:brightness(.94)}
.btn-secondary{
  background:rgba(255,255,255,.045);color:var(--text-1);
  border:1px solid var(--line);backdrop-filter:blur(14px);
}
.btn-secondary:hover{color:var(--text-1);border-color:var(--line-strong);transform:translateY(-2px);text-decoration:none}
.btn-secondary:active{transform:translateY(1px);filter:brightness(.94)}
.btn-ghost{color:var(--primary);padding:0;height:auto}
.btn-ghost .arrow{transition:transform .18s ease;display:inline-block}
.btn-ghost:hover{text-decoration:underline;text-underline-offset:3px}
.btn-ghost:hover .arrow{transform:translateX(3px)}
.burger{display:inline-flex}
@media (min-width:1024px){.burger{display:none}}
.channel-bar{border-top:1px solid var(--line);transition:height .25s ease, opacity .2s ease}
.site-header.is-scrolled .channel-bar{padding-top:0;padding-bottom:0}
.channel-inner{
  display:flex;align-items:center;gap:6px;height:44px;
  transition:height .25s ease;overflow-x:auto;scrollbar-width:none;
}
.channel-inner::-webkit-scrollbar{display:none}
.site-header.is-scrolled .channel-inner{height:40px}
.channel{
  position:relative;flex:0 0 auto;
  padding:0 12px;font-size:14px;font-weight:500;color:var(--text-2);
  line-height:40px;white-space:nowrap;
}
.channel:hover{color:var(--primary);text-decoration:none}
.channel.is-active{color:var(--primary);font-weight:600}
.channel.is-active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:6px;height:2px;
  border-radius:2px;background:var(--primary);box-shadow:0 0 10px rgba(43,227,176,.8);
}
.hot-words{display:flex;align-items:center;gap:8px;margin-left:auto;padding-left:16px;flex:0 0 auto}
.chip{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:var(--radius-pill);
  font-size:12px;letter-spacing:.04em;white-space:nowrap;
  background:rgba(255,138,61,.12);color:var(--accent);
  border:1px solid rgba(255,138,61,.22);
}
.chip svg{width:12px;height:12px}
.chip:hover{color:var(--accent);background:rgba(255,138,61,.2);text-decoration:none;transform:translateY(-2px)}
.trend-link{
  font-size:13px;color:var(--text-2);padding:5px 10px;border-radius:var(--radius-pill);
  border:1px solid var(--line);white-space:nowrap;
}
.trend-link:hover{color:var(--primary);border-color:var(--line-strong);text-decoration:none}
@media (max-width:1023px){.channel-bar{display:none}}

.drawer{
  position:fixed;inset:0;z-index:80;
  background:rgba(10,16,28,.97);backdrop-filter:blur(18px);
  padding:72px 20px 32px;overflow-y:auto;
  opacity:0;visibility:hidden;transform:translateY(-12px);
  transition:opacity .22s ease, transform .22s ease, visibility .22s ease;
}
.drawer.is-open{opacity:1;visibility:visible;transform:translateY(0)}
.drawer-close{
  position:absolute;top:16px;right:20px;width:44px;height:44px;
  border:1px solid var(--line);border-radius:var(--radius-sm);
  display:flex;align-items:center;justify-content:center;color:var(--text-2);
}
.drawer-close svg{width:18px;height:18px}
.drawer h3{font-size:13px;color:var(--text-3);letter-spacing:.08em;margin-bottom:12px}
.drawer-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-bottom:28px}
.drawer-grid a{
  padding:14px 12px;border:1px solid var(--line);border-radius:var(--radius-sm);
  font-size:15px;color:var(--text-1);background:rgba(255,255,255,.03);
}
.drawer-grid a.is-active{color:var(--primary);border-color:var(--line-strong)}
.drawer-chips{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:28px}
.drawer-search{display:flex;gap:8px;margin-bottom:20px}
.drawer-search input{
  flex:1;height:44px;padding:0 14px;border-radius:var(--radius-sm);
  background:var(--bg-2);border:1px solid var(--line);color:var(--text-1);font-size:15px;
}
.drawer-search input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 4px rgba(43,227,176,.18)}

/* ---------- breadcrumb ---------- */
.crumb{padding:22px 0 0;font-size:13px;color:var(--text-3)}
.crumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:6px}
.crumb li{display:flex;align-items:center;gap:6px}
.crumb li+li::before{content:"/";color:var(--text-3)}
.crumb a{color:var(--text-2)}
.crumb .current{color:var(--text-3)}

/* ---------- hero (narrow) ---------- */
.hero-wrap{
  position:relative;overflow:hidden;
  padding:34px 0 var(--sect);
}
.hero-wrap::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:
    radial-gradient(900px 320px at 12% -10%, rgba(43,227,176,.10), transparent 70%),
    radial-gradient(620px 280px at 88% 0%, rgba(255,138,61,.07), transparent 72%);
}
.hero-grid{position:relative;display:grid;grid-template-columns:1fr;gap:32px;align-items:center}
@media (min-width:1024px){
  .hero-grid{grid-template-columns:7fr 5fr;gap:44px}
}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:16px}
.tag{
  display:inline-flex;align-items:center;gap:6px;font-size:12px;letter-spacing:.04em;
  padding:5px 12px;border-radius:var(--radius-pill);
  background:rgba(43,227,176,.1);color:var(--primary);
  border:1px solid rgba(43,227,176,.22);
}
.tag.dot::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--primary)}
.tag.amber{background:rgba(255,138,61,.12);border-color:rgba(255,138,61,.25);color:var(--accent)}
.hero-title{
  font-size:clamp(28px,4.4vw,44px);line-height:1.2;font-weight:700;
  color:var(--text-1);margin-bottom:14px;
}
.hero-sub{font-size:17px;color:var(--text-2);max-width:640px;margin-bottom:22px}
.hero-lead{
  max-width:740px;font-size:15px;line-height:1.85;color:var(--text-2);
  border-left:3px solid var(--line-strong);padding-left:16px;margin-bottom:26px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:26px}
.metrics{
  display:flex;flex-wrap:wrap;gap:10px 24px;padding-top:18px;border-top:1px solid var(--line);
  font-size:14px;color:var(--text-2);
}
.metrics span{display:inline-flex;align-items:center;gap:8px}
.metrics svg{width:16px;height:16px;color:var(--primary)}
.hero-media{position:relative;border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow)}
.hero-media img{width:100%;height:260px;object-fit:cover}
@media (min-width:1024px){.hero-media img{height:320px}}
.hero-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg, rgba(6,10,18,.18) 0%, rgba(6,10,18,.62) 100%);
}
.hero-media-note{
  position:absolute;left:16px;right:16px;bottom:14px;z-index:2;
  font-size:13px;color:var(--text-1);display:flex;align-items:center;gap:8px;
}
.hero-media-note b{color:var(--primary);font-weight:600}

/* ---------- anchors ---------- */
.anchor-bar{
  position:relative;display:flex;gap:10px;overflow-x:auto;scrollbar-width:none;
  padding:14px 0 6px;margin-bottom:8px;border-top:1px dashed rgba(255,255,255,.12);
}
.anchor-bar::-webkit-scrollbar{display:none}
.anchor-chip{
  flex:0 0 auto;padding:8px 16px;border-radius:var(--radius-pill);
  border:1px dashed rgba(43,227,176,.3);background:rgba(43,227,176,.06);
  font-size:13px;color:var(--primary);letter-spacing:.02em;
}
.anchor-chip:hover{background:rgba(43,227,176,.14);color:var(--primary);text-decoration:none;transform:translateY(-2px)}

/* ---------- sections ---------- */
.section{padding:var(--sect) 0}
.section.alt{background:var(--bg-1)}
.section.grid-bg{
  background-image:linear-gradient(rgba(255,255,255,.035) 1px, transparent 1px),
                   linear-gradient(90deg, rgba(255,255,255,.035) 1px, transparent 1px);
  background-size:24px 24px;
}
.section-head{max-width:780px;margin-bottom:40px}
.section-head h2{font-size:clamp(22px,2.6vw,34px);line-height:1.3;margin-bottom:12px}
.section-head p{font-size:15px;color:var(--text-2)}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:12px;letter-spacing:.14em;
  color:var(--accent);margin-bottom:12px;text-transform:uppercase;
}
.eyebrow::before{content:"";width:18px;height:2px;background:var(--accent);border-radius:2px}

.group{padding:40px 0;border-top:1px dashed rgba(255,255,255,.14)}
.group:first-of-type{border-top:0;padding-top:0}
.group-head{display:flex;gap:18px;align-items:flex-start;margin-bottom:20px}
.group-num{
  flex:0 0 auto;width:52px;height:52px;border-radius:12px;
  border:1px solid var(--line-strong);border-top-color:var(--primary);
  border-bottom-color:var(--primary);
  display:flex;align-items:center;justify-content:center;
  font-family:var(--font-num);font-size:16px;font-weight:700;color:var(--primary);
  background:rgba(43,227,176,.06);letter-spacing:.02em;
}
.group-head h2{font-size:clamp(20px,2.2vw,26px);line-height:1.4}
.group-head p{margin-top:8px;font-size:15px;max-width:740px}
.point-grid{display:grid;grid-template-columns:1fr;gap:20px;margin-top:26px}
@media (min-width:768px){.point-grid{grid-template-columns:1fr 1fr;gap:24px}}
.card{
  background:rgba(255,255,255,.045);
  backdrop-filter:blur(14px);
  border:1px solid var(--line);
  border-radius:var(--radius-md);
  box-shadow:var(--shadow);
  padding:20px 22px;
  transition:transform .2s ease, border-color .2s ease, background-color .2s ease;
}
@media (min-width:768px){.card{padding:24px}}
.card:hover{transform:translateY(-2px);border-color:var(--line-strong)}
.point-card h3{font-size:17px;line-height:1.5;margin-bottom:8px;display:flex;align-items:center;gap:10px}
.point-card h3::before{content:"";width:8px;height:8px;border-radius:2px;background:var(--primary);flex:0 0 auto}
.point-card p{font-size:14px;color:var(--text-2);line-height:1.8}
.list-check{display:grid;gap:12px;margin-top:18px}
.list-check li{display:flex;gap:12px;font-size:14px;line-height:1.75;color:var(--text-2)}
.list-check li::before{
  content:"";flex:0 0 auto;width:7px;height:7px;margin-top:9px;
  border-radius:2px;background:var(--primary);
}
.split{display:grid;grid-template-columns:1fr;gap:24px;margin-top:24px}
@media (min-width:1024px){.split{grid-template-columns:7fr 5fr;gap:28px}}
.spec-row{
  display:flex;flex-wrap:wrap;gap:8px 20px;align-items:center;
  padding:14px 0;border-bottom:1px dashed rgba(255,255,255,.12);
  font-size:14px;
}
.spec-row:last-child{border-bottom:0}
.spec-row b{color:var(--text-1);font-weight:600;min-width:110px}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 10px;border-radius:var(--radius-pill);
  font-size:12px;letter-spacing:.04em;
  background:var(--bg-2);color:var(--primary);border:1px solid rgba(43,227,176,.24);
}
.badge.amber{color:var(--accent);border-color:rgba(255,138,61,.28);background:rgba(255,138,61,.08)}

/* ---------- cross links ---------- */
.cross-grid{display:grid;grid-template-columns:1fr;gap:20px}
@media (min-width:768px){.cross-grid{grid-template-columns:1fr 1fr;gap:24px}}
.cross-card{
  display:flex;gap:16px;align-items:flex-start;
  background:rgba(255,255,255,.045);backdrop-filter:blur(14px);
  border:1px solid var(--line);border-radius:var(--radius-md);
  padding:22px;box-shadow:var(--shadow);
  transition:transform .2s ease, border-color .2s ease;
}
.cross-card:hover{transform:translateY(-2px);border-color:var(--line-strong);text-decoration:none}
.cross-card .ico{
  flex:0 0 auto;width:44px;height:44px;border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  border:1px solid var(--line-strong);background:rgba(43,227,176,.08);color:var(--primary);
}
.cross-card .ico svg{width:20px;height:20px}
.cross-card h3{font-size:17px;margin-bottom:6px}
.cross-card p{font-size:14px;line-height:1.75}
.cross-card .go{margin-top:10px;font-size:13px;color:var(--primary);display:inline-flex;align-items:center;gap:6px}

/* ---------- faq ---------- */
.faq-list{display:grid;gap:14px;max-width:900px}
.faq-item{
  background:rgba(255,255,255,.045);backdrop-filter:blur(14px);
  border:1px solid var(--line);border-radius:var(--radius-md);
  box-shadow:var(--shadow);overflow:hidden;
  transition:border-color .2s ease;
}
.faq-item.is-open{border-color:var(--line-strong)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 20px;text-align:left;font-size:16px;font-weight:600;color:var(--text-1);
  position:relative;padding-left:24px;
}
.faq-q::before{
  content:"";position:absolute;left:12px;top:20px;bottom:20px;width:3px;
  border-radius:3px;background:var(--primary);
}
.faq-q .pm{
  flex:0 0 auto;width:22px;height:22px;border-radius:50%;
  border:1px solid var(--line-strong);color:var(--primary);
  display:flex;align-items:center;justify-content:center;font-size:14px;line-height:1;
}
.faq-a{max-height:0;overflow:hidden;transition:max-height .18s ease}
.faq-item.is-open .faq-a{max-height:420px}
.faq-a p{padding:0 20px 20px 24px;font-size:15px;line-height:1.8;color:var(--text-2)}

/* ---------- cta band ---------- */
.cta-band{
  position:relative;border-radius:var(--radius-lg);
  border:1px solid var(--line-strong);
  background:linear-gradient(180deg, rgba(43,227,176,.08), rgba(10,16,28,.6));
  padding:36px 24px;text-align:center;
  box-shadow:0 0 0 1px rgba(43,227,176,.08), 0 30px 60px -40px rgba(43,227,176,.5);
}
.cta-band h2{font-size:clamp(20px,2.4vw,28px);margin-bottom:10px}
.cta-band p{font-size:15px;margin-bottom:22px}

/* ---------- footer ---------- */
.site-footer{border-top:1px solid var(--line);background:var(--bg-1);padding:56px 0 26px;margin-top:24px}
.footer-grid{display:grid;grid-template-columns:1fr;gap:28px}
@media (min-width:768px){.footer-grid{grid-template-columns:repeat(2,1fr);gap:32px}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1fr}}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:12px}
.footer-brand svg{width:28px;height:28px;color:var(--primary)}
.footer-brand span{font-size:15px;font-weight:700;color:var(--text-1)}
.footer-col h3{font-size:14px;color:var(--text-1);margin-bottom:14px;letter-spacing:.02em}
.footer-col p{font-size:13px;line-height:1.8;color:var(--text-3);max-width:320px}
.footer-col ul{display:grid;gap:9px}
.footer-col li{font-size:13px;color:var(--text-3)}
.footer-col ul a{color:var(--text-2)}
.footer-col ul a:hover{color:var(--primary)}
.footer-bottom{
  margin-top:36px;padding-top:18px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:8px 20px;justify-content:space-between;
  font-size:13px;color:var(--text-3);
}

@media (max-width:1023px){
  :root{--sect:72px}
  .hero-grid{gap:28px}
}
@media (max-width:767px){
  :root{--sect:56px}
  .brand-tail{display:none}
  .hero-actions .btn{width:100%}
  .group-head{flex-direction:column;gap:12px}
  .spec-row b{min-width:auto}
}
@media (max-width:520px){
  .brand-name{font-size:15px}
  .cta-band{padding:28px 18px}
}

/* roulang page: category2 */
:root{
  --bg-0:#060A12;
  --bg-1:#0A101C;
  --bg-2:#0F1725;
  --primary:#2BE3B0;
  --primary-deep:#12A583;
  --accent:#FF8A3D;
  --violet:#7A5CFF;
  --text-1:#E9F1FF;
  --text-2:#94A5C0;
  --text-3:#5C6E8C;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(43,227,176,.35);
  --r-lg:16px;
  --r-card:14px;
  --r-btn:10px;
  --r-pill:999px;
  --shadow-card:0 24px 48px -32px rgba(0,0,0,.9), inset 0 1px 0 rgba(255,255,255,.06);
  --glow:0 0 24px -6px rgba(43,227,176,.55);
  --glow-hover:0 0 26px -4px rgba(43,227,176,.7);
  --gap-section:clamp(56px,7vw,96px);
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
  --font-num:Inter,system-ui,sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:132px}
body{
  background:var(--bg-0);
  color:var(--text-2);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color .2s ease, border-color .2s ease, background-color .2s ease, transform .2s ease}
a:hover{color:var(--primary)}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit}
ul{list-style:none}
strong{color:var(--text-1);font-weight:600}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:1200px;margin:0 auto;padding-left:16px;padding-right:16px}
@media (min-width:768px){.container{padding-left:24px;padding-right:24px}}
@media (min-width:1024px){.container{padding-left:32px;padding-right:32px}}

/* ---------- 设计系统组件 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 20px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;letter-spacing:.01em;
  transition:transform .18s ease, box-shadow .18s ease, background-color .18s ease, border-color .18s ease, color .18s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--primary);color:#04231B;box-shadow:var(--glow)}
.btn-primary:hover{background:#4DEBBF;color:#04231B;transform:translateY(-2px);box-shadow:var(--glow-hover)}
.btn-primary:active{transform:translateY(1px);filter:brightness(.94)}
.btn-secondary{
  background:rgba(255,255,255,.045);
  border:1px solid var(--line);
  color:var(--text-1);
  backdrop-filter:blur(14px);
}
.btn-secondary:hover{border-color:var(--line-strong);color:var(--primary);transform:translateY(-2px)}
.btn-secondary:active{transform:translateY(1px);filter:brightness(.94)}
.btn-ghost{height:40px;padding:0 6px;color:var(--text-1);font-weight:600}
.btn-ghost .arw{transition:transform .18s ease}
.btn-ghost:hover{color:var(--primary)}
.btn-ghost:hover .arw{transform:translateX(3px)}
.btn-sm{height:36px;padding:0 14px;font-size:14px}
.btn-lg{height:48px;padding:0 26px;font-size:16px}
.btn[disabled]{opacity:.45;cursor:not-allowed}

.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:3px 10px;border-radius:var(--r-pill);
  background:var(--bg-2);border:1px solid var(--line);
  color:var(--primary);font-size:12px;letter-spacing:.04em;
}
.chip{
  display:inline-flex;align-items:center;gap:5px;
  padding:4px 11px;border-radius:var(--r-pill);
  background:rgba(255,138,61,.12);
  border:1px solid rgba(255,138,61,.22);
  color:#FFB27D;font-size:12px;letter-spacing:.04em;
  white-space:nowrap;
}
.chip svg{width:12px;height:12px;flex:none}
.chip:hover{background:rgba(255,138,61,.2);color:#FFC79B}
.state-dot{display:inline-flex;align-items:center;gap:7px;font-size:14px;color:var(--text-2)}
.state-dot::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--primary);box-shadow:0 0 10px rgba(43,227,176,.8)}

.glass{
  background:rgba(255,255,255,.045);
  backdrop-filter:blur(14px);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--shadow-card);
}
.stamp{
  display:inline-block;padding:2px 10px;border-radius:var(--r-pill);
  border:1px dashed rgba(255,138,61,.55);
  color:#FFB27D;font-size:12px;letter-spacing:.06em;
  transform:rotate(-1.6deg);
}
.num-badge{
  display:inline-flex;align-items:center;justify-content:center;
  width:38px;height:38px;border-radius:12px;flex:none;
  background:var(--bg-2);border:1px solid var(--line-strong);
  color:var(--primary);font-family:var(--font-num);
  font-size:14px;font-weight:600;font-variant-numeric:tabular-nums;
}
.rule{height:1px;background:var(--line);border:0}
.grid-bg{
  background-image:
    linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);
  background-size:24px 24px;
}
.paper-dots{
  background-image:radial-gradient(rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:16px 16px;
}

/* ---------- 头部与导航 ---------- */
.site-header{position:sticky;top:0;z-index:50;background:rgba(6,10,18,.72);backdrop-filter:blur(10px);transition:background-color .25s ease, backdrop-filter .25s ease}
.site-header.is-scrolled{background:rgba(6,10,18,.86);backdrop-filter:blur(18px)}
.site-header.is-scrolled .channel-bar{border-bottom-color:var(--line-strong);box-shadow:0 1px 0 rgba(43,227,176,.18)}
.top-strip{border-bottom:1px solid var(--line)}
.top-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:56px}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--text-1);font-weight:700;letter-spacing:.01em}
.brand-mark{width:32px;height:32px;color:var(--primary);flex:none}
.brand-name{font-size:16px;white-space:nowrap}
.brand-name em{color:var(--primary);font-style:normal;padding:0 2px}
.nav-actions{display:flex;align-items:center;gap:10px}
.icon-btn{
  display:inline-flex;align-items:center;justify-content:center;
  width:40px;height:40px;border-radius:var(--r-btn);
  border:1px solid var(--line);background:rgba(255,255,255,.04);color:var(--text-2);
  transition:border-color .18s ease,color .18s ease,transform .18s ease;
}
.icon-btn:hover{border-color:var(--line-strong);color:var(--primary);transform:translateY(-2px)}
.icon-btn svg{width:18px;height:18px}
.hamburger{display:none;width:40px;height:40px;border-radius:var(--r-btn);border:1px solid var(--line);align-items:center;justify-content:center;color:var(--text-1)}
.hamburger svg{width:20px;height:20px}
.channel-bar{border-bottom:1px solid var(--line);transition:border-color .25s ease}
.channel-inner{display:flex;align-items:center;gap:6px;min-height:44px;overflow-x:auto;scrollbar-width:none}
.channel-inner::-webkit-scrollbar{display:none}
.channel{
  position:relative;padding:6px 10px;font-size:14px;color:var(--text-2);
  white-space:nowrap;border-radius:8px;
}
.channel:hover{color:var(--primary);background:rgba(255,255,255,.04)}
.channel.is-active{color:var(--primary);font-weight:600}
.channel.is-active::after{
  content:"";position:absolute;left:10px;right:10px;bottom:-9px;height:2px;
  background:var(--primary);border-radius:2px;box-shadow:0 0 12px rgba(43,227,176,.75);
}
.hot-words{display:flex;align-items:center;gap:8px;margin-left:auto;padding-left:12px;overflow-x:auto;scrollbar-width:none}
.hot-words::-webkit-scrollbar{display:none}
.trend-link{font-size:13px;color:var(--text-3);white-space:nowrap;padding-left:6px}
.trend-link:hover{color:var(--primary)}
.trend-link span{transition:transform .18s ease;display:inline-block}
.trend-link:hover span{transform:translateX(3px)}

/* 移动端抽屉 */
.drawer{
  position:fixed;inset:0;z-index:80;background:rgba(6,10,18,.6);
  backdrop-filter:blur(4px);opacity:0;pointer-events:none;transition:opacity .22s ease;
}
.drawer.is-open{opacity:1;pointer-events:auto}
.drawer-panel{
  position:absolute;top:0;right:0;left:0;max-height:100%;overflow-y:auto;
  background:var(--bg-1);border-bottom:1px solid var(--line-strong);
  padding:20px 16px 28px;transform:translateY(-14px);opacity:0;
  transition:transform .22s ease,opacity .22s ease;
}
.drawer.is-open .drawer-panel{transform:translateY(0);opacity:1}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px}
.drawer-title{font-size:15px;color:var(--text-1);font-weight:700}
.drawer-close{width:40px;height:40px;border:1px solid var(--line);border-radius:var(--r-btn);display:flex;align-items:center;justify-content:center;color:var(--text-1)}
.drawer-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.drawer-link{
  display:block;padding:12px 14px;border-radius:var(--r-btn);
  background:rgba(255,255,255,.04);border:1px solid var(--line);
  font-size:14px;color:var(--text-2);
}
.drawer-link.is-active{color:var(--primary);border-color:var(--line-strong);background:rgba(43,227,176,.08)}
.drawer-hot{margin-top:18px;display:flex;flex-wrap:wrap;gap:8px}
.drawer-form{margin-top:18px;display:flex;gap:8px}
.drawer-form input{
  flex:1;height:44px;padding:0 12px;border-radius:var(--r-btn);
  background:var(--bg-2);border:1px solid var(--line);color:var(--text-1);font-size:14px;
}
.drawer-form input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 4px rgba(43,227,176,.16)}

/* ---------- 面包屑 ---------- */
.crumb-bar{border-bottom:1px solid var(--line);background:var(--bg-1)}
.crumb{display:flex;align-items:center;gap:8px;flex-wrap:wrap;padding:12px 0;font-size:13px;color:var(--text-3)}
.crumb a{color:var(--text-2)}
.crumb a:hover{color:var(--primary)}
.crumb .sep{color:var(--text-3)}
.crumb .current{color:var(--text-3)}

/* ---------- 窄幅 Hero ---------- */
.hero-narrow{position:relative;overflow:hidden;padding:clamp(40px,6vw,72px) 0 clamp(36px,5vw,60px);border-bottom:1px solid var(--line)}
.hero-narrow::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(6,10,18,.82),rgba(6,10,18,.94)),url("/assets/images/backpic/back-1.webp");
  background-size:cover;background-position:center;
  opacity:.65;
}
.hero-grid{position:relative;display:grid;grid-template-columns:7fr 5fr;gap:clamp(24px,4vw,48px);align-items:center}
.kicker{
  display:inline-flex;align-items:center;gap:8px;font-size:12px;letter-spacing:.08em;
  color:var(--primary);text-transform:uppercase;margin-bottom:14px;
}
.kicker::before{content:"";width:22px;height:1px;background:var(--primary)}
h1{
  font-size:clamp(28px,4.4vw,50px);line-height:1.2;font-weight:700;color:var(--text-1);
  letter-spacing:-.01em;
}
.hero-sub{margin-top:14px;font-size:clamp(15px,1.6vw,18px);color:var(--text-2);max-width:34ch}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px}
.hero-points{display:flex;flex-wrap:wrap;gap:10px 22px;margin-top:26px;padding-top:18px;border-top:1px solid var(--line)}
.hero-points li{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--text-2)}
.hero-points svg{width:15px;height:15px;color:var(--primary);flex:none}
.hero-media{position:relative;border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow-card)}
.hero-media img{width:100%;height:clamp(220px,28vw,320px);object-fit:cover}
.hero-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(6,10,18,.18),rgba(6,10,18,.55))}
.hero-media figcaption{
  position:absolute;left:14px;bottom:12px;z-index:2;font-size:13px;color:#D6E4F7;
  background:rgba(6,10,18,.6);border:1px solid var(--line);border-radius:var(--r-pill);padding:4px 12px;
}

/* ---------- 板块通用 ---------- */
.section{padding:var(--gap-section) 0}
.section-tight{padding:clamp(40px,5vw,64px) 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:18px;margin-bottom:34px}
.section-head h2{font-size:clamp(22px,2.6vw,34px);line-height:1.3;font-weight:700;color:var(--text-1)}
.section-head p{margin-top:8px;font-size:15px;color:var(--text-2);max-width:60ch}
.eyebrow{font-size:12px;letter-spacing:.08em;color:var(--accent);margin-bottom:8px}
.bar-title{position:relative;padding-left:16px}
.bar-title::before{content:"";position:absolute;left:0;top:.28em;bottom:.28em;width:3px;border-radius:3px;background:var(--primary);box-shadow:0 0 14px rgba(43,227,176,.5)}

/* ---------- Tab 频道 ---------- */
.tab-wrap{border:1px solid var(--line);border-radius:var(--r-lg);background:rgba(255,255,255,.03);backdrop-filter:blur(14px);padding:8px;box-shadow:var(--shadow-card)}
.tabs{display:flex;gap:6px;overflow-x:auto;scrollbar-width:none}
.tabs::-webkit-scrollbar{display:none}
.tab{
  position:relative;padding:10px 18px;border-radius:10px;font-size:14px;color:var(--text-2);
  white-space:nowrap;background:transparent;transition:all .2s ease;
}
.tab:hover{color:var(--primary);background:rgba(255,255,255,.05)}
.tab.is-active{color:var(--primary);font-weight:600;background:rgba(43,227,176,.08)}
.tab.is-active::after{content:"";position:absolute;left:18px;right:18px;bottom:4px;height:2px;background:var(--primary);border-radius:2px}
.tab-cta{
  margin-top:22px;display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap;
  padding:18px 22px;border-radius:var(--r-card);border:1px solid var(--line);
  background:linear-gradient(90deg,rgba(43,227,176,.07),rgba(255,255,255,.02));
}
.tab-cta p{font-size:15px;color:var(--text-2)}

/* ---------- 通栏分组 ---------- */
.mag-group{display:grid;grid-template-columns:minmax(240px,4fr) 8fr;gap:clamp(24px,4vw,52px);padding:clamp(34px,4vw,52px) 0}
.mag-group + .mag-group{border-top:1px solid var(--line)}
.mag-lead h2{font-size:clamp(21px,2.3vw,30px);line-height:1.34;color:var(--text-1);font-weight:700}
.mag-lead .stamp{margin-bottom:14px}
.mag-lead p{margin-top:14px;font-size:15px;color:var(--text-2)}
.mag-body{display:grid;grid-template-columns:1fr 1fr;gap:16px 22px}
.point{
  display:flex;gap:12px;padding:16px 18px;border-radius:var(--r-card);
  border:1px solid var(--line);background:rgba(255,255,255,.035);
  transition:transform .2s ease,border-color .2s ease;
}
.point:hover{transform:translateY(-2px);border-color:var(--line-strong)}
.point .sq{width:8px;height:8px;border-radius:2px;background:var(--primary);flex:none;margin-top:9px;box-shadow:0 0 10px rgba(43,227,176,.6)}
.point strong{display:block;font-size:15px;color:var(--text-1);font-weight:600}
.point span{display:block;font-size:14px;color:var(--text-3);margin-top:2px}

/* ---------- 宽幅图文卡 ---------- */
.feature-wide{
  display:grid;grid-template-columns:5fr 7fr;gap:0;overflow:hidden;
  border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--shadow-card);
  background:rgba(255,255,255,.04);backdrop-filter:blur(14px);
}
.feature-wide .fw-media{position:relative;min-height:280px}
.feature-wide .fw-media img{width:100%;height:100%;object-fit:cover;position:absolute;inset:0}
.feature-wide .fw-media::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(6,10,18,.25),rgba(6,10,18,.6))}
.feature-wide .fw-body{padding:clamp(24px,3vw,40px)}
.feature-wide h2{font-size:clamp(20px,2.2vw,28px);line-height:1.35;color:var(--text-1);font-weight:700}
.feature-wide p{margin-top:14px;font-size:15px;color:var(--text-2)}
.fw-list{margin-top:18px;display:grid;gap:10px}
.fw-list li{display:flex;gap:10px;font-size:14px;color:var(--text-2)}
.fw-list li::before{content:"";width:6px;height:6px;border-radius:2px;background:var(--accent);margin-top:10px;flex:none}

/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:12px}
.faq-item{
  border:1px solid var(--line);border-radius:var(--r-card);
  background:rgba(255,255,255,.045);backdrop-filter:blur(14px);
  box-shadow:var(--shadow-card);overflow:hidden;
}
.faq-item.is-open{border-color:var(--line-strong)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 20px 18px 22px;text-align:left;font-size:16px;font-weight:600;color:var(--text-1);
  position:relative;transition:color .18s ease;
}
.faq-q::before{content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;border-radius:3px;background:var(--primary)}
.faq-q:hover{color:var(--primary)}
.faq-sign{font-family:var(--font-num);font-size:18px;color:var(--primary);flex:none;line-height:1}
.faq-a{max-height:0;overflow:hidden;transition:max-height .18s ease}
.faq-item.is-open .faq-a{max-height:420px}
.faq-a p{padding:0 22px 20px;font-size:15px;line-height:1.8;color:var(--text-2)}

/* ---------- 相关入口矩阵 ---------- */
.matrix{display:grid;grid-template-columns:1fr 1fr;gap:clamp(18px,2.4vw,26px)}
.matrix-card{
  display:block;padding:24px;border-radius:var(--r-card);
  border:1px solid var(--line);background:rgba(255,255,255,.045);backdrop-filter:blur(14px);
  box-shadow:var(--shadow-card);transition:transform .2s ease,border-color .2s ease;
}
.matrix-card:hover{transform:translateY(-2px);border-color:var(--line-strong)}
.matrix-card h3{font-size:20px;font-weight:600;color:var(--text-1);line-height:1.45}
.matrix-card p{margin-top:10px;font-size:14px;color:var(--text-2)}
.matrix-card .more{margin-top:16px;display:inline-flex;align-items:center;gap:6px;font-size:14px;color:var(--primary)}
.matrix-card .more span{transition:transform .18s ease}
.matrix-card:hover .more span{transform:translateX(3px)}
.matrix-tag{font-size:12px;letter-spacing:.04em;color:var(--text-3);margin-bottom:10px;display:block}

/* ---------- 底部 CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--r-lg);
  border:1px solid var(--line-strong);
  background:linear-gradient(120deg,rgba(43,227,176,.12),rgba(122,92,255,.08) 60%,rgba(255,138,61,.08));
  padding:clamp(28px,4vw,48px);
  display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap;
  box-shadow:0 0 34px -20px rgba(43,227,176,.8);
}
.cta-band h2{font-size:clamp(20px,2.3vw,30px);color:var(--text-1);line-height:1.35;font-weight:700}
.cta-band p{margin-top:10px;font-size:15px;color:var(--text-2);max-width:52ch}

/* ---------- 页脚 ---------- */
.site-footer{border-top:1px solid var(--line);background:var(--bg-1);margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:clamp(22px,3vw,36px);padding:clamp(38px,5vw,60px) 0 28px}
.footer-brand{display:flex;align-items:center;gap:10px;color:var(--text-1);font-weight:700;font-size:16px;margin-bottom:12px}
.footer-brand svg{width:28px;height:28px;color:var(--primary);flex:none}
.footer-col p{font-size:13px;color:var(--text-3);line-height:1.75;max-width:34ch}
.footer-col h3{font-size:14px;color:var(--text-1);font-weight:600;margin-bottom:14px;letter-spacing:.02em}
.footer-col ul{display:grid;gap:9px}
.footer-col li{font-size:13px;color:var(--text-3)}
.footer-col a{font-size:13px;color:var(--text-2)}
.footer-col a:hover{color:var(--primary)}
.footer-bottom{
  border-top:1px solid var(--line);padding:18px 0 26px;
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:13px;color:var(--text-3);
}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  html{scroll-padding-top:96px}
  .hero-grid{grid-template-columns:1fr}
  .hero-media{order:-1}
  .mag-group{grid-template-columns:1fr;gap:22px}
  .feature-wide{grid-template-columns:1fr}
  .feature-wide .fw-media{min-height:220px;position:relative}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:1023px){
  .channel-bar{display:none}
  .hamburger{display:flex}
}
@media (max-width:768px){
  body{font-size:15px}
  .mag-body{grid-template-columns:1fr}
  .matrix{grid-template-columns:1fr}
  .section-head{flex-direction:column;align-items:flex-start}
  .nav-actions .btn{display:none}
}
@media (max-width:520px){
  .footer-grid{grid-template-columns:1fr}
  .btn{width:100%;justify-content:center}
  .hero-actions{flex-direction:column;align-items:stretch}
  .tab-cta .btn{width:100%}
  .cta-band .btn{width:100%}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;scroll-behavior:auto!important}
}