/* roulang page: index */
*,*::before,*::after{box-sizing:border-box;}
:root{
  --ink-900:#05080F;
  --ink-800:#0A101C;
  --ink-700:#121A2A;
  --brand-500:#2BE3C4;
  --brand-600:#12B9A2;
  --brand-glow:rgba(43,227,196,.35);
  --accent-500:#FFB020;
  --accent-600:#E08A00;
  --violet-500:#7C8CFF;
  --text-100:#EAF1F9;
  --text-300:#A9B8CC;
  --text-500:#6F8098;
  --line:rgba(140,180,220,.14);
  --line-strong:rgba(140,180,220,.28);
  --ok:#3DDC84;
  --error:#FF6B6B;
  --radius-lg:18px;
  --radius-md:14px;
  --radius-sm:12px;
  --container:1240px;
  --shadow-card:0 20px 40px -24px rgba(0,0,0,.7);
  --ease:cubic-bezier(.2,.7,.3,1);
}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--ink-900);
  color:var(--text-300);
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease);}
h1,h2,h3,h4{margin:0;color:var(--text-100);font-weight:700;letter-spacing:-.2px;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
input,select,textarea{font-family:inherit;}
::selection{background:rgba(43,227,196,.28);color:#fff;}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px;}
.section{padding:96px 0;position:relative;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;margin-bottom:32px;flex-wrap:wrap;}
.section-head h2{font-size:28px;line-height:1.35;}
.section-head .head-note{color:var(--text-500);font-size:14px;max-width:420px;}
.head-sub{color:var(--text-300);font-size:15px;margin-top:10px;max-width:640px;}

[data-anchor]{scroll-margin-top:140px;}

/* ---------- 玻璃卡 ---------- */
.glass{
  position:relative;
  background:linear-gradient(160deg,rgba(255,255,255,.06),rgba(255,255,255,.015));
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-card),inset 0 1px 0 rgba(255,255,255,.12);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  transition:transform .24s var(--ease),border-color .24s var(--ease);
}
@supports not ((backdrop-filter:blur(14px)) or (-webkit-backdrop-filter:blur(14px))){
  .glass{background:var(--ink-700);}
}

/* ---------- 按钮 ---------- */
.btn-glow{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--radius-sm);border:none;
  background:var(--brand-500);color:#04211D;font-size:15px;font-weight:600;
  box-shadow:0 0 0 1px rgba(43,227,196,.5),0 10px 28px -8px var(--brand-glow);
  transition:transform .22s ease-out,box-shadow .22s ease-out,filter .22s ease-out,color .22s;
  cursor:pointer;
}
.btn-glow:hover{filter:brightness(1.06);transform:translateY(-2px);color:#04211D;box-shadow:0 0 0 1px rgba(43,227,196,.6),0 14px 36px -8px var(--brand-glow);}
.btn-glow:active{transform:translateY(0);}
.btn-glow:focus-visible{outline:2px solid var(--text-100);outline-offset:3px;}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--radius-sm);
  background:transparent;border:1px solid var(--line-strong);color:var(--text-100);
  font-size:15px;font-weight:500;cursor:pointer;
  transition:border-color .22s,color .22s,background .22s,transform .22s;
}
.btn-ghost:hover{border-color:var(--brand-500);color:var(--brand-500);background:rgba(43,227,196,.06);transform:translateY(-2px);}
.btn-ghost:focus-visible{outline:2px solid var(--brand-500);outline-offset:3px;}
.btn-amber{
  display:inline-flex;align-items:center;justify-content:center;
  height:48px;padding:0 24px;border-radius:var(--radius-sm);border:none;
  background:var(--accent-500);color:#2A1A00;font-size:15px;font-weight:700;cursor:pointer;
  box-shadow:0 0 0 1px rgba(255,176,32,.45),0 10px 28px -10px rgba(255,176,32,.5);
  transition:transform .22s ease-out,filter .22s ease-out,box-shadow .22s;
}
.btn-amber:hover{filter:brightness(1.06);transform:translateY(-2px);}
.btn-amber:active{transform:translateY(0);}
.btn-amber:focus-visible{outline:2px solid var(--text-100);outline-offset:3px;}

/* ---------- 文字链 ---------- */
.text-link{
  display:inline-flex;align-items:center;gap:6px;color:var(--text-100);
  font-size:14px;font-weight:500;
}
.text-link .arrow{transition:transform .22s var(--ease);display:inline-block;}
.text-link:hover{color:var(--brand-500);}
.text-link:hover .arrow{transform:translateX(4px);}

/* ---------- 徽章 ---------- */
.badge-chip{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;font-weight:500;letter-spacing:.3px;line-height:1;
  padding:6px 10px;border-radius:6px;
  border:1px solid rgba(43,227,196,.32);
  background:rgba(43,227,196,.1);
  color:var(--brand-500);
}
.badge-chip.amber{border-color:rgba(255,176,32,.34);background:rgba(255,176,32,.1);color:var(--accent-500);}
.badge-chip.muted{border-color:var(--line-strong);background:rgba(255,255,255,.04);color:var(--text-300);}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(5,8,15,.82);
  -webkit-backdrop-filter:blur(16px);
  backdrop-filter:blur(16px);
  transition:box-shadow .25s var(--ease),background .25s;
}
.site-header.is-scrolled{background:rgba(5,8,15,.95);border-bottom:1px solid var(--line);}
.topbar-inner{display:flex;align-items:center;gap:24px;height:72px;transition:height .25s var(--ease);}
.site-header.is-scrolled .topbar-inner{height:60px;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:34px;height:34px;border-radius:10px;display:grid;place-items:center;
  background:linear-gradient(150deg,rgba(43,227,196,.22),rgba(124,140,255,.16));
  border:1px solid rgba(43,227,196,.35);color:var(--brand-500);
}
.brand-text{font-size:19px;font-weight:700;letter-spacing:1px;color:var(--text-100);}
.brand-tag{
  font-size:12px;color:var(--text-500);padding-left:10px;border-left:1px solid var(--line-strong);
  letter-spacing:.5px;
}
.topbar-search{
  flex:1 1 auto;max-width:320px;position:relative;display:flex;align-items:center;
}
.topbar-search svg{position:absolute;left:14px;color:var(--text-500);pointer-events:none;}
.topbar-search input{
  width:100%;height:40px;border-radius:999px;padding:0 16px 0 40px;
  background:rgba(255,255,255,.05);border:1px solid var(--line);
  color:var(--text-100);font-size:14px;outline:none;
  transition:border-color .2s,background .2s,box-shadow .2s;
}
.topbar-search input::placeholder{color:var(--text-500);}
.topbar-search input:focus{border-color:var(--brand-500);background:rgba(255,255,255,.07);box-shadow:0 0 0 3px rgba(43,227,196,.12);}
.topbar-actions{display:flex;align-items:center;gap:12px;margin-left:auto;flex:0 0 auto;}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:10px;
  border:1px solid var(--line-strong);background:rgba(255,255,255,.04);
  color:var(--text-100);align-items:center;justify-content:center;cursor:pointer;
}
.channel-bar{border-top:1px solid var(--line);}
.channel-scroll{
  display:flex;gap:10px;align-items:center;height:48px;
  overflow-x:auto;scrollbar-width:none;position:relative;
}
.channel-scroll::-webkit-scrollbar{display:none;}
.pill{
  flex:0 0 auto;display:inline-flex;align-items:center;height:34px;padding:0 16px;
  border-radius:999px;border:1px solid transparent;color:var(--text-300);
  font-size:14px;font-weight:500;white-space:nowrap;
  transition:color .2s,background .2s,border-color .2s;
}
.pill:hover{color:var(--text-100);background:rgba(255,255,255,.08);}
.pill:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px;}
.pill.active{color:var(--text-100);background:rgba(43,227,196,.12);border-color:rgba(43,227,196,.55);}

/* ---------- 移动抽屉 ---------- */
.mobile-drawer{
  position:fixed;inset:0;z-index:1200;display:none;
  background:rgba(3,6,12,.72);
}
.mobile-drawer.open{display:block;}
.drawer-panel{
  position:absolute;top:0;right:0;bottom:0;width:min(86vw,360px);
  background:var(--ink-800);border-left:1px solid var(--line);
  padding:22px 20px;display:flex;flex-direction:column;gap:18px;
  overflow-y:auto;
}
.drawer-head{display:flex;align-items:center;justify-content:space-between;}
.drawer-close{
  width:38px;height:38px;border-radius:10px;border:1px solid var(--line-strong);
  background:transparent;color:var(--text-100);font-size:20px;line-height:1;cursor:pointer;
}
.drawer-search input{
  width:100%;height:44px;border-radius:12px;padding:0 14px;
  background:rgba(255,255,255,.05);border:1px solid var(--line);
  color:var(--text-100);font-size:14px;outline:none;
}
.drawer-search input:focus{border-color:var(--brand-500);}
.drawer-nav{display:flex;flex-direction:column;gap:4px;}
.drawer-nav a{
  display:block;padding:12px 14px;border-radius:10px;color:var(--text-300);font-size:15px;
  border:1px solid transparent;
}
.drawer-nav a:hover{background:rgba(255,255,255,.06);color:var(--text-100);}
.drawer-nav a.active{background:rgba(43,227,196,.12);border-color:rgba(43,227,196,.5);color:var(--text-100);}
.drawer-cta{width:100%;}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;padding:80px 0 88px;min-height:620px;display:flex;align-items:center;}
.hero-bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
  opacity:.22;
}
.hero-mask{
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(5,8,15,.55) 0%,rgba(5,8,15,.82) 52%,var(--ink-900) 100%);
}
.hero-lines{
  position:absolute;inset:0;
  background-image:linear-gradient(to right,rgba(140,180,220,.06) 1px,transparent 1px),
                   linear-gradient(to bottom,rgba(140,180,220,.06) 1px,transparent 1px);
  background-size:48px 48px;
  -webkit-mask-image:radial-gradient(circle at 30% 40%,#000 0%,transparent 72%);
  mask-image:radial-gradient(circle at 30% 40%,#000 0%,transparent 72%);
}
.hero-glow-a,.hero-glow-b{position:absolute;border-radius:50%;filter:blur(70px);pointer-events:none;}
.hero-glow-a{width:520px;height:520px;left:-140px;top:-120px;background:rgba(43,227,196,.12);}
.hero-glow-b{width:460px;height:460px;right:-120px;bottom:-160px;background:rgba(124,140,255,.1);}
.hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:7fr 5fr;gap:56px;align-items:center;width:100%;}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.4px;color:var(--text-300);
  padding:7px 14px;border-radius:999px;border:1px solid var(--line-strong);
  background:rgba(255,255,255,.05);margin-bottom:22px;
}
.dot{width:7px;height:7px;border-radius:50%;background:var(--brand-500);box-shadow:0 0 0 3px rgba(43,227,196,.18);}
.hero h1{
  font-size:clamp(32px,4.2vw,54px);line-height:1.16;letter-spacing:-.6px;
  margin-bottom:20px;
}
.hero h1 .accent{
  background:linear-gradient(96deg,var(--brand-500),#8FE8DA 70%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-sub{font-size:17px;line-height:1.8;color:var(--text-300);max-width:520px;margin-bottom:30px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:28px;}
.hero-tags{display:flex;flex-wrap:wrap;align-items:center;gap:0;font-size:13px;color:var(--text-500);}
.hero-tags span{padding:0 14px;border-right:1px solid var(--line-strong);}
.hero-tags span:first-child{padding-left:0;}
.hero-tags span:last-child{border-right:none;}

.hero-card{padding:28px;}
.hero-card::after{
  content:"";position:absolute;inset:0;border-radius:var(--radius-lg);
  background:radial-gradient(circle at 88% 8%,rgba(43,227,196,.14),transparent 58%);
  pointer-events:none;
}
.hero-card-head{
  display:flex;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--text-500);margin-bottom:22px;
}
.hero-metric + .hero-metric{margin-top:20px;padding-top:20px;border-top:1px solid var(--line);}
.hero-metric .num{
  font-size:46px;line-height:1;font-weight:700;color:var(--text-100);
  font-variant-numeric:tabular-nums;letter-spacing:-1px;
}
.hero-metric .num span{font-size:15px;font-weight:600;color:var(--text-300);margin-left:4px;letter-spacing:0;}
.hero-metric p{font-size:13px;color:var(--text-500);margin-top:8px;}
.hero-bar{height:3px;border-radius:999px;background:rgba(255,255,255,.08);margin-top:24px;overflow:hidden;}
.hero-bar span{display:block;height:100%;width:78%;border-radius:999px;background:linear-gradient(90deg,var(--brand-600),var(--brand-500));}
.hero-note{font-size:12px;color:var(--text-500);margin-top:12px;}

/* ---------- 指标看板 ---------- */
.metrics-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.metric-card{padding:26px 24px;}
.metric-card .m-num{
  font-size:48px;line-height:1;font-weight:700;color:var(--text-100);
  font-variant-numeric:tabular-nums;letter-spacing:-1.5px;
}
.metric-card .m-num em{font-style:normal;font-size:14px;font-weight:600;color:var(--text-300);margin-left:5px;letter-spacing:0;}
.metric-card .m-desc{font-size:14px;color:var(--text-300);margin-top:12px;}
.metric-card .m-note{font-size:12px;color:var(--text-500);margin-top:6px;}
.m-bar{height:3px;border-radius:999px;background:rgba(255,255,255,.07);margin-top:18px;overflow:hidden;}
.m-bar span{display:block;height:100%;border-radius:999px;background:linear-gradient(90deg,var(--brand-600),var(--brand-500));}
.m-bar.amber span{background:linear-gradient(90deg,var(--accent-600),var(--accent-500));}
.metric-card:hover{transform:translateY(-4px);border-color:var(--line-strong);}

/* ---------- Bento 服务矩阵 ---------- */
.bento{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.bento-item{padding:26px 24px;display:flex;flex-direction:column;transition:transform .24s var(--ease),border-color .24s var(--ease);}
.bento-item:hover{transform:translateY(-4px);border-color:var(--line-strong);}
.bento-big{grid-column:span 2;grid-row:span 2;padding:0;overflow:hidden;display:flex;flex-direction:column;}
.bento-big .big-media{position:relative;overflow:hidden;aspect-ratio:16/9;flex:0 0 auto;}
.bento-big .big-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease);}
.bento-big:hover .big-media img{transform:scale(1.03);}
.bento-big .big-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(5,8,15,.05),rgba(5,8,15,.7));}
.bento-big .big-body{padding:26px 26px 28px;display:flex;flex-direction:column;gap:14px;flex:1 1 auto;}
.bento-big h3{font-size:23px;line-height:1.45;}
.bento-big p{font-size:14px;line-height:1.8;color:var(--text-300);}
.bento-num{
  display:inline-flex;align-items:center;justify-content:center;
  font-size:12px;font-variant-numeric:tabular-nums;letter-spacing:.5px;
  padding:4px 9px;border-radius:6px;color:var(--text-300);
  background:rgba(255,255,255,.06);border:1px solid var(--line);
  align-self:flex-start;
}
.bento-item h3{font-size:19px;line-height:1.5;margin-top:16px;}
.bento-item p{font-size:14px;line-height:1.8;color:var(--text-300);margin-top:10px;flex:1 1 auto;}
.bento-item .text-link{margin-top:18px;}
.icon-box{
  width:42px;height:42px;border-radius:12px;display:grid;place-items:center;
  background:rgba(43,227,196,.1);border:1px solid rgba(43,227,196,.28);color:var(--brand-500);
  margin-top:16px;
}
.bento-big .icon-box{margin-top:0;}

/* ---------- 成效对比 ---------- */
.compare-wrap{display:grid;grid-template-columns:.9fr 2fr;gap:0;align-items:start;}
.compare-left{padding-right:44px;position:relative;}
.compare-left::after{
  content:"";position:absolute;right:0;top:10px;bottom:10px;width:1px;
  background:linear-gradient(180deg,rgba(43,227,196,0),rgba(43,227,196,.55),rgba(43,227,196,0));
}
.compare-left h2{font-size:28px;line-height:1.35;margin-bottom:16px;}
.compare-left p{font-size:14px;line-height:1.8;color:var(--text-300);margin-bottom:10px;}
.compare-right{padding-left:44px;}
.cmp-row{
  display:grid;grid-template-columns:1.6fr auto auto auto;align-items:center;gap:20px;
  padding:20px 0;border-bottom:1px solid var(--line);
}
.cmp-row:first-child{padding-top:0;}
.cmp-row:last-child{border-bottom:none;padding-bottom:0;}
.cmp-label{font-size:15px;color:var(--text-100);font-weight:500;}
.cmp-label .cmp-bars{display:block;margin-top:10px;height:4px;border-radius:999px;background:rgba(255,255,255,.07);position:relative;overflow:hidden;}
.cmp-label .cmp-bars i{position:absolute;top:0;left:0;height:100%;border-radius:999px;display:block;}
.cmp-label .bar-old{background:rgba(140,180,220,.38);}
.cmp-label .bar-new{background:linear-gradient(90deg,var(--brand-600),var(--brand-500));box-shadow:0 0 10px rgba(43,227,196,.5);}
.cmp-old{font-size:14px;color:var(--text-500);text-decoration:line-through;font-variant-numeric:tabular-nums;}
.cmp-delta{
  font-size:13px;font-weight:600;color:var(--accent-500);
  padding:4px 10px;border-radius:6px;
  background:rgba(255,176,32,.1);border:1px solid rgba(255,176,32,.3);
  font-variant-numeric:tabular-nums;
}
.cmp-new{font-size:19px;font-weight:700;color:var(--text-100);font-variant-numeric:tabular-nums;text-shadow:0 0 16px rgba(43,227,196,.35);}
.compare-foot{font-size:12px;color:var(--text-500);margin-top:22px;}

/* ---------- 最新信息 ---------- */
.news-wrap{display:grid;grid-template-columns:1.35fr 1fr;gap:20px;align-items:start;}
.news-main{
  padding:0;overflow:hidden;display:flex;flex-direction:column;
  transition:transform .24s var(--ease),border-color .24s var(--ease);
}
.news-main:hover{transform:translateY(-4px);border-color:var(--line-strong);}
.news-main .thumb{position:relative;overflow:hidden;aspect-ratio:16/10;}
.news-main .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease);}
.news-main:hover .thumb img{transform:scale(1.03);}
.news-main .body{padding:24px;display:flex;flex-direction:column;gap:12px;}
.news-main h3{font-size:21px;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-main:hover h3{color:var(--brand-500);}
.news-main p{font-size:14px;line-height:1.8;color:var(--text-300);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-meta{display:flex;align-items:center;gap:12px;font-size:12px;color:var(--text-500);margin-top:4px;}
.news-side-list{display:flex;flex-direction:column;gap:16px;}
.news-side{
  display:grid;grid-template-columns:104px 1fr;gap:16px;
  padding:16px;transition:transform .24s var(--ease),border-color .24s var(--ease),background .24s;
}
.news-side:hover{transform:translateY(-3px);border-color:var(--line-strong);}
.news-side .thumb{overflow:hidden;border-radius:var(--radius-sm);aspect-ratio:4/3;}
.news-side .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease);}
.news-side:hover .thumb img{transform:scale(1.05);}
.news-side h3{font-size:16px;line-height:1.55;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-side:hover h3{color:var(--brand-500);}
.news-side p{font-size:13px;color:var(--text-500);margin-top:8px;display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden;}
.news-empty{
  min-height:240px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;
  text-align:center;padding:40px 24px;
}
.news-empty .empty-icon{color:var(--text-500);}
.news-empty p{color:var(--text-500);font-size:14px;}

/* ---------- FAQ ---------- */
.faq-wrap{display:grid;grid-template-columns:1fr 1.6fr;gap:56px;align-items:start;}
.faq-left h2{font-size:28px;line-height:1.35;margin-bottom:16px;}
.faq-left p{font-size:14px;line-height:1.8;color:var(--text-300);margin-bottom:20px;}
.accordion-item{
  background:linear-gradient(160deg,rgba(255,255,255,.055),rgba(255,255,255,.015)) !important;
  border:1px solid var(--line) !important;
  border-radius:var(--radius-md) !important;
  margin-bottom:10px;overflow:hidden;
  transition:border-color .22s;
}
.accordion-item:has(.accordion-button:not(.collapsed)){border-color:rgba(43,227,196,.4) !important;}
.accordion-button{
  background:transparent !important;color:var(--text-100) !important;
  font-size:17px;font-weight:600;padding:18px 22px;
  box-shadow:none !important;border:none !important;
  position:relative;
}
.accordion-button::after{
  width:14px;height:14px;background-size:14px;
  filter:invert(84%) sepia(21%) saturate(760%) hue-rotate(120deg) brightness(96%);
}
.accordion-button:not(.collapsed)::after{filter:invert(84%) sepia(21%) saturate(760%) hue-rotate(120deg) brightness(96%);}
.accordion-button:focus{box-shadow:none !important;outline:2px solid var(--brand-500);outline-offset:-2px;}
.accordion-button:not(.collapsed){
  color:var(--brand-500) !important;
  box-shadow:inset 4px 0 0 var(--brand-500) !important;
  background:rgba(43,227,196,.06) !important;
}
.accordion-body{
  padding:0 22px 20px 22px;color:var(--text-300);font-size:15px;line-height:1.8;
}
.accordion-button::before{display:none;}

/* ---------- CTA 表单 ---------- */
.cta-card{
  display:grid;grid-template-columns:6fr 5fr;gap:0;overflow:hidden;position:relative;
}
.cta-card::after{
  content:"";position:absolute;right:-80px;bottom:-120px;width:340px;height:340px;border-radius:50%;
  background:radial-gradient(circle,rgba(43,227,196,.16),transparent 68%);pointer-events:none;
}
.cta-left{padding:44px 40px;position:relative;z-index:1;}
.cta-left h2{font-size:28px;line-height:1.35;margin-bottom:18px;}
.cta-points{display:flex;flex-direction:column;gap:12px;margin-bottom:26px;}
.cta-points li{display:flex;align-items:flex-start;gap:10px;font-size:14px;color:var(--text-300);}
.cta-points li svg{flex:0 0 auto;margin-top:4px;color:var(--brand-500);}
.cta-contact{font-size:13px;color:var(--text-500);line-height:2;}
.cta-contact strong{color:var(--text-100);font-weight:600;font-size:15px;font-variant-numeric:tabular-nums;}
.cta-right{padding:44px 40px;background:rgba(255,255,255,.03);border-left:1px solid var(--line);position:relative;z-index:1;}
.form-row{margin-bottom:16px;}
.form-row label{display:block;font-size:13px;color:var(--text-300);margin-bottom:7px;}
.form-row label .req{color:var(--accent-500);margin-left:3px;}
.form-control{
  width:100%;height:48px;border-radius:var(--radius-sm);
  background:rgba(255,255,255,.04) !important;
  border:1px solid var(--line) !important;
  color:var(--text-100) !important;font-size:14px;padding:0 14px;
  outline:none;transition:border-color .2s,box-shadow .2s,background .2s;
}
textarea.form-control{height:auto;padding:12px 14px;resize:vertical;min-height:88px;line-height:1.7;}
.form-control::placeholder{color:var(--text-500);}
.form-control:focus{
  border-color:var(--brand-500) !important;
  background:rgba(255,255,255,.06) !important;
  box-shadow:0 0 0 3px rgba(43,227,196,.14) !important;
  color:var(--text-100) !important;
}
select.form-control{appearance:none;background-image:url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%236F8098' stroke-width='2.2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E") !important;background-repeat:no-repeat !important;background-position:right 14px center !important;padding-right:38px;}
select.form-control option{background:#121A2A;color:#EAF1F9;}
.form-hint{font-size:12px;color:var(--text-500);margin-top:8px;}
.form-submit{width:100%;margin-top:6px;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink-900);border-top:1px solid var(--line);padding:72px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;}
.footer-brand .brand{margin-bottom:18px;}
.footer-brand p{font-size:14px;line-height:1.8;color:var(--text-500);max-width:320px;margin-bottom:18px;}
.footer-contact{font-size:13px;color:var(--text-500);line-height:2;}
.footer-contact strong{color:var(--text-100);font-weight:600;font-variant-numeric:tabular-nums;}
.footer-col h4{font-size:15px;color:var(--text-100);margin-bottom:18px;font-weight:600;}
.footer-col ul{display:flex;flex-direction:column;gap:11px;}
.footer-col a{font-size:14px;color:var(--text-500);}
.footer-col a:hover{color:var(--brand-500);}
.qr-box{
  width:112px;height:112px;border-radius:var(--radius-sm);
  border:1px solid var(--line-strong);background:rgba(255,255,255,.04);
  display:grid;place-items:center;color:var(--text-500);font-size:12px;text-align:center;line-height:1.6;
}
.footer-bottom{
  margin-top:56px;border-top:1px solid var(--line);
  padding:22px 0;display:flex;flex-wrap:wrap;gap:16px;justify-content:space-between;align-items:center;
  font-size:13px;color:var(--text-500);
}
.footer-bottom a{color:var(--text-500);}
.footer-bottom a:hover{color:var(--brand-500);}
.footer-links{display:flex;flex-wrap:wrap;gap:20px;}

/* ---------- 响应式 ---------- */
@media (min-width:1400px){
  .hero h1{font-size:56px;}
  .metric-card .m-num{font-size:52px;}
}
@media (max-width:1199.98px){
  .container{padding:0 24px;}
  .section{padding:76px 0;}
  .hero-inner{grid-template-columns:1fr;gap:40px;}
  .hero-card{max-width:560px;}
  .metrics-grid{grid-template-columns:repeat(2,1fr);}
  .bento{grid-template-columns:repeat(2,1fr);}
  .bento-big{grid-column:span 2;grid-row:auto;}
  .compare-wrap{grid-template-columns:1fr;}
  .compare-left{padding-right:0;padding-bottom:32px;}
  .compare-left::after{right:auto;left:0;top:auto;bottom:0;width:100%;height:1px;background:linear-gradient(90deg,rgba(43,227,196,0),rgba(43,227,196,.55),rgba(43,227,196,0));}
  .compare-right{padding-left:0;padding-top:32px;}
  .faq-wrap{grid-template-columns:1fr;gap:32px;}
  .cta-card{grid-template-columns:1fr;}
  .cta-right{border-left:none;border-top:1px solid var(--line);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px;}
}
@media (max-width:991.98px){
  .topbar-search{display:none;}
  .nav-toggle{display:inline-flex;}
  .news-wrap{grid-template-columns:1fr;}
  .hero{min-height:auto;padding:64px 0 72px;}
}
@media (max-width:767.98px){
  .container{padding:0 16px;}
  .section{padding:56px 0;}
  .topbar-inner{height:60px;gap:14px;}
  .brand-text{font-size:17px;letter-spacing:.5px;}
  .brand-tag{display:none;}
  .topbar-actions .btn-glow{display:none;}
  .channel-scroll{
    -webkit-mask-image:linear-gradient(90deg,transparent 0,#000 14px,#000 calc(100% - 18px),transparent 100%);
    mask-image:linear-gradient(90deg,transparent 0,#000 14px,#000 calc(100% - 18px),transparent 100%);
  }
  .hero h1{font-size:32px;line-height:1.25;}
  .hero-sub{font-size:15px;}
  .hero-actions{gap:12px;}
  .hero-actions .btn-glow,.hero-actions .btn-ghost{flex:1 1 auto;}
  .hero-card{padding:22px;max-width:none;}
  .hero-metric .num{font-size:38px;}
  .metrics-grid{grid-template-columns:repeat(2,1fr);gap:16px;}
  .metric-card{padding:20px 18px;}
  .metric-card .m-num{font-size:36px;}
  .bento{grid-template-columns:1fr;gap:16px;}
  .bento-big{grid-column:span 1;}
  .bento-big h3{font-size:20px;}
  .cmp-row{grid-template-columns:1fr auto;gap:10px 14px;}
  .cmp-label{grid-column:1 / -1;}
  .news-side{grid-template-columns:88px 1fr;}
  .footer-grid{grid-template-columns:1fr;gap:32px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .cta-left,.cta-right{padding:28px 22px;}
  .faq-left h2,.section-head h2,.compare-left h2,.cta-left h2{font-size:23px;}
}
@media (max-width:519.98px){
  .hero h1{font-size:27px;}
  .hero-tags span{padding:0 10px;font-size:12px;}
  .cmp-new{font-size:16px;}
  .news-main h3{font-size:18px;}
}
@media (max-width:420px){
  .metrics-grid{grid-template-columns:1fr 1fr;}
  .metric-card .m-num{font-size:31px;}
  .hero-metric .num{font-size:33px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;scroll-behavior:auto !important;}
  .bento-item:hover,.news-main:hover,.news-side:hover,.metric-card:hover,.btn-glow:hover,.btn-ghost:hover,.btn-amber:hover{transform:none;}
}

/* roulang page: article */
:root{
  --ink-900:#05080F;
  --ink-800:#0A101C;
  --ink-700:#121A2A;
  --brand-500:#2BE3C4;
  --brand-600:#12B9A2;
  --brand-glow:rgba(43,227,196,.35);
  --accent-500:#FFB020;
  --accent-600:#E08A00;
  --violet-500:#7C8CFF;
  --text-100:#EAF1F9;
  --text-300:#A9B8CC;
  --text-500:#6F8098;
  --line:rgba(140,180,220,.14);
  --line-strong:rgba(140,180,220,.28);
  --ok:#3DDC84;
  --warn:#FFB020;
  --error:#FF6B6B;
  --radius-lg:18px;
  --radius-md:12px;
  --radius-sm:8px;
  --shell:1240px;
  --font-cn:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Noto Sans SC",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;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.75;
  color:var(--text-300);
  background:var(--ink-900);
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;transition:color .22s ease-out,border-color .22s ease-out,background-color .22s ease-out;}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;}
h1,h2,h3,h4,h5{margin:0;color:var(--text-100);font-weight:700;line-height:1.35;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
::selection{background:rgba(43,227,196,.28);color:#04120F;}
.container{width:100%;max-width:var(--shell);margin:0 auto;padding:0 32px;}
@media (max-width:991.98px){.container{padding:0 24px;}}
@media (max-width:575.98px){.container{padding:0 16px;}}

/* ============ 通用组件 ============ */
.glass{
  background:linear-gradient(160deg,rgba(255,255,255,.06),rgba(255,255,255,.015));
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  box-shadow:0 20px 40px -24px rgba(0,0,0,.7);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
}
@supports not ((backdrop-filter:blur(1px)) or (-webkit-backdrop-filter:blur(1px))){
  .glass{background:#0D1422;}
}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--radius-md);
  font-size:15px;font-weight:600;letter-spacing:.2px;
  border:1px solid transparent;cursor:pointer;white-space:nowrap;
  transition:transform .22s ease-out,box-shadow .22s ease-out,background-color .22s ease-out,color .22s ease-out,border-color .22s ease-out,filter .22s ease-out;
}
.btn:focus-visible{outline:2px solid var(--text-100);outline-offset:2px;}
.btn-primary{
  background:var(--brand-500);color:#04211D;
  box-shadow:0 0 0 1px rgba(43,227,196,.5),0 10px 28px -8px var(--brand-glow);
}
.btn-primary:hover{filter:brightness(1.06);transform:translateY(-2px);box-shadow:0 0 0 1px rgba(43,227,196,.62),0 14px 36px -8px var(--brand-glow);color:#04211D;}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:transparent;border-color:var(--line-strong);color:var(--text-100);}
.btn-ghost:hover{border-color:var(--brand-500);color:var(--brand-500);}
.btn-accent{
  background:var(--accent-500);color:#241600;
  box-shadow:0 0 0 1px rgba(255,176,32,.45),0 10px 28px -10px rgba(255,176,32,.55);
}
.btn-accent:hover{filter:brightness(1.05);transform:translateY(-2px);color:#241600;}
.btn-sm{height:42px;padding:0 18px;font-size:14px;border-radius:10px;}
.btn-block{width:100%;}
.badge-cat{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;font-weight:500;letter-spacing:.3px;
  padding:3px 10px;border-radius:6px;
  background:rgba(43,227,196,.12);
  border:1px solid rgba(43,227,196,.35);
  color:var(--brand-500);
}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--text-300);}
.link-arrow .ar{transition:transform .22s ease-out;}
.link-arrow:hover{color:var(--brand-500);}
.link-arrow:hover .ar{transform:translateX(4px);}
.eyebrow{font-size:12px;letter-spacing:.6px;color:var(--brand-500);font-weight:600;text-transform:none;}

/* ============ 头部 ============ */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(5,8,15,.82);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  border-bottom:1px solid var(--line);
}
.header-top-inner{display:flex;align-items:center;gap:20px;height:72px;transition:height .24s ease-out;}
.site-header.is-scrolled .header-top-inner{height:60px;}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:36px;height:36px;flex:0 0 36px;display:flex;align-items:center;justify-content:center;
  border-radius:10px;color:var(--brand-500);
  background:linear-gradient(150deg,rgba(43,227,196,.18),rgba(124,140,255,.10));
  border:1px solid rgba(43,227,196,.35);
  box-shadow:inset 0 0 0 1px rgba(255,255,255,.06);
}
.brand-text{font-size:18px;font-weight:700;letter-spacing:1px;color:var(--text-100);}
.brand-sub{
  font-size:12px;color:var(--text-500);padding-left:10px;margin-left:2px;
  border-left:1px solid var(--line-strong);letter-spacing:.5px;
}
.header-search{position:relative;margin-left:auto;width:300px;max-width:42vw;}
.header-search .s-icon{position:absolute;left:14px;top:50%;transform:translateY(-50%);color:var(--text-500);pointer-events:none;}
.header-search input{
  width:100%;height:42px;padding:0 16px 0 40px;
  border-radius:999px;background:rgba(255,255,255,.05);
  border:1px solid var(--line);color:var(--text-100);
  font-size:14px;outline:none;
  transition:border-color .22s ease-out,box-shadow .22s ease-out,background-color .22s ease-out;
}
.header-search input::placeholder{color:var(--text-500);}
.header-search input:focus{
  border-color:var(--brand-500);
  background:rgba(255,255,255,.07);
  box-shadow:0 0 0 3px rgba(43,227,196,.15);
}
.header-actions{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.nav-toggle{
  display:none;width:42px;height:42px;align-items:center;justify-content:center;
  border-radius:10px;background:rgba(255,255,255,.05);
  border:1px solid var(--line);color:var(--text-100);cursor:pointer;
  transition:border-color .22s ease-out,background-color .22s ease-out;
}
.nav-toggle:hover{border-color:var(--brand-500);background:rgba(43,227,196,.10);}
.channel-bar{border-top:1px solid var(--line);}
.channel-scroll{
  display:flex;align-items:center;gap:8px;height:48px;
  overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;
  position:relative;
}
.channel-scroll::-webkit-scrollbar{display:none;}
.pill{
  display:inline-flex;align-items:center;
  padding:6px 16px;border-radius:999px;
  font-size:14px;font-weight:500;color:var(--text-300);
  border:1px solid transparent;white-space:nowrap;
  transition:color .22s ease-out,background-color .22s ease-out,border-color .22s ease-out;
}
.pill:hover{color:var(--text-100);background:rgba(255,255,255,.08);}
.pill.active{
  color:var(--text-100);
  background:rgba(43,227,196,.12);
  border-color:var(--brand-500);
}
.offcanvas{background:var(--ink-800);color:var(--text-300);border-left:1px solid var(--line);}
.offcanvas-header{border-bottom:1px solid var(--line);}
.offcanvas-title{font-size:17px;letter-spacing:.5px;}
.btn-close{filter:invert(1) grayscale(1) brightness(1.7);opacity:.65;}
.btn-close:hover{opacity:1;}
.drawer-search{position:relative;margin-bottom:22px;}
.drawer-search input{
  width:100%;height:44px;padding:0 16px 0 40px;border-radius:12px;
  background:rgba(255,255,255,.05);border:1px solid var(--line);color:var(--text-100);font-size:14px;outline:none;
}
.drawer-search input:focus{border-color:var(--brand-500);box-shadow:0 0 0 3px rgba(43,227,196,.15);}
.drawer-search .s-icon{position:absolute;left:14px;top:50%;transform:translateY(-50%);color:var(--text-500);}
.drawer-list{display:grid;gap:6px;}
.drawer-list a{
  display:flex;align-items:center;justify-content:space-between;
  padding:13px 14px;border-radius:12px;font-size:15px;color:var(--text-100);
  border:1px solid transparent;background:rgba(255,255,255,.03);
}
.drawer-list a:hover{border-color:var(--brand-500);color:var(--brand-500);background:rgba(43,227,196,.08);}
@media (max-width:991.98px){
  .header-search{display:none;}
  .nav-toggle{display:inline-flex;}
}
@media (max-width:575.98px){
  .brand-sub{display:none;}
  .header-actions .btn{display:none;}
  .brand-text{font-size:17px;}
}

/* ============ 文章主体 ============ */
.main-wrap{padding-bottom:8px;}
.breadcrumb-nav{
  display:flex;align-items:center;flex-wrap:wrap;gap:8px;
  padding:26px 0 0;font-size:13px;color:var(--text-500);
}
.breadcrumb-nav a{color:var(--text-500);}
.breadcrumb-nav a:hover{color:var(--brand-500);}
.breadcrumb-nav .sep{color:var(--text-500);opacity:.55;}
.breadcrumb-nav .current{color:var(--text-300);max-width:52vw;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.article-head{padding:22px 0 0;}
.article-title{
  font-size:36px;line-height:1.3;letter-spacing:-.4px;
  margin-top:16px;max-width:900px;
}
.meta-bar{
  display:flex;align-items:center;flex-wrap:wrap;gap:10px 20px;
  margin-top:20px;padding-bottom:18px;border-bottom:1px solid var(--line);
  font-size:13px;color:var(--text-500);
}
.meta-bar .meta-item{display:inline-flex;align-items:center;gap:6px;}
.meta-bar .meta-item svg{color:var(--text-500);}
.meta-bar .share-group{margin-left:auto;display:inline-flex;align-items:center;gap:8px;}
.share-btn{
  width:34px;height:34px;display:inline-flex;align-items:center;justify-content:center;
  border-radius:9px;border:1px solid var(--line);background:rgba(255,255,255,.03);
  color:var(--text-300);cursor:pointer;
  transition:border-color .22s ease-out,color .22s ease-out,background-color .22s ease-out;
}
.share-btn:hover{border-color:var(--brand-500);color:var(--brand-500);background:rgba(43,227,196,.08);}
.cover-wrap{
  margin-top:28px;border-radius:var(--radius-lg);overflow:hidden;
  border:1px solid var(--line);aspect-ratio:16/9;background:var(--ink-700);
}
.cover-wrap img{width:100%;height:100%;object-fit:cover;}

.article-layout{
  display:grid;grid-template-columns:minmax(0,1fr);gap:44px;
  margin-top:36px;
}
@media (min-width:1200px){
  .article-layout{grid-template-columns:minmax(0,1fr) 300px;gap:48px;}
}
.article-main{min-width:0;}
.article-body{
  max-width:820px;
  font-size:17px;line-height:1.95;color:var(--text-300);
  word-break:break-word;
}
.article-body > *:first-child{margin-top:0;}
.article-body p{margin:0 0 1.2em;}
.article-body h2{
  font-size:24px;line-height:1.4;color:var(--text-100);
  margin:40px 0 16px;padding-left:14px;
  border-left:4px solid var(--brand-500);
}
.article-body h3{
  font-size:19px;line-height:1.5;color:var(--text-100);
  margin:28px 0 12px;font-weight:600;
}
.article-body h4{font-size:17px;margin:22px 0 10px;color:var(--text-100);}
.article-body a{
  color:var(--brand-500);
  text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px;
}
.article-body a:hover{color:var(--brand-600);}
.article-body strong{color:var(--text-100);font-weight:600;}
.article-body ul,.article-body ol{margin:0 0 1.2em;padding-left:0;}
.article-body ul li{
  position:relative;padding-left:20px;margin:6px 0;line-height:1.9;
}
.article-body ul li::before{
  content:"";position:absolute;left:0;top:.78em;
  width:7px;height:7px;border-radius:2px;background:var(--brand-500);
}
.article-body ol{list-style:decimal;padding-left:22px;}
.article-body ol li{margin:6px 0;line-height:1.9;padding-left:2px;}
.article-body ol li::marker{color:var(--brand-500);font-weight:600;}
.article-body blockquote{
  margin:24px 0;padding:20px;
  border-left:3px solid var(--accent-500);
  border-radius:12px;
  background:linear-gradient(160deg,rgba(255,255,255,.06),rgba(255,255,255,.015));
  color:var(--text-300);
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{border-radius:16px;width:100%;height:auto;margin:22px 0;}
.article-body figure{margin:22px 0;}
.article-body figcaption{font-size:13px;color:var(--text-500);text-align:center;margin-top:8px;}
.article-body table{
  width:100%;border-collapse:collapse;margin:22px 0;
  font-size:15px;border:1px solid var(--line);border-radius:12px;overflow:hidden;
}
.article-body th{
  background:var(--ink-700);color:var(--text-100);
  text-align:left;padding:12px 14px;border:1px solid var(--line);font-weight:600;
}
.article-body td{padding:12px 14px;border:1px solid var(--line);}
.article-body tbody tr:nth-child(even) td{background:rgba(255,255,255,.03);}
.article-body code{
  background:rgba(255,255,255,.07);border-radius:5px;
  padding:2px 6px;font-size:14px;color:var(--brand-500);
}
.article-body hr{border:0;border-top:1px solid var(--line);margin:32px 0;}

.empty-state{
  max-width:420px;margin:0 auto;padding:64px 24px;text-align:center;
}
.empty-state .empty-icon{color:var(--text-500);margin-bottom:16px;display:inline-flex;}
.empty-state p{font-size:16px;color:var(--text-300);margin-bottom:18px;}

.article-tags{
  display:flex;flex-wrap:wrap;gap:10px;
  margin-top:36px;padding-top:24px;border-top:1px solid var(--line);
}
.tag{
  font-size:12px;font-weight:500;letter-spacing:.3px;
  padding:5px 12px;border-radius:999px;
  border:1px solid var(--line-strong);color:var(--text-300);
  transition:color .22s ease-out,border-color .22s ease-out;
}
.tag:hover{color:var(--brand-500);border-color:var(--brand-500);}
.article-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px;}
@media (max-width:767.98px){
  .article-title{font-size:26px;letter-spacing:-.2px;}
  .article-body{font-size:16.5px;line-height:1.9;}
  .article-body h2{font-size:21px;margin-top:32px;}
  .article-actions .btn{width:100%;}
}

/* 侧栏 */
.article-aside{display:grid;gap:20px;align-content:start;}
.aside-card{padding:22px;border-radius:var(--radius-lg);}
.aside-card h3{
  font-size:15px;font-weight:600;color:var(--text-100);
  margin-bottom:16px;padding-bottom:12px;border-bottom:1px solid var(--line);
}
.aside-list{display:grid;gap:4px;}
.aside-list a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:10px 12px;border-radius:10px;font-size:14px;color:var(--text-300);
  border:1px solid transparent;
}
.aside-list a:hover{color:var(--brand-500);background:rgba(43,227,196,.08);border-color:rgba(43,227,196,.3);}
.aside-cta{padding:24px;text-align:left;}
.aside-cta h3{border-bottom:0;padding-bottom:0;margin-bottom:10px;font-size:17px;}
.aside-cta p{font-size:13px;line-height:1.8;color:var(--text-500);margin-bottom:16px;}
.aside-tip{
  margin-top:14px;font-size:12px;color:var(--text-500);line-height:1.7;
}
@media (max-width:1199.98px){
  .article-aside{display:none;}
}

/* 相关推荐 */
.section{padding:72px 0 0;}
@media (max-width:767.98px){.section{padding:48px 0 0;}}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:20px;
  margin-bottom:28px;
}
.section-head h2{font-size:28px;letter-spacing:-.3px;}
.section-head .sub{font-size:13px;color:var(--text-500);}
@media (max-width:767.98px){
  .section-head{flex-direction:column;align-items:flex-start;gap:10px;}
  .section-head h2{font-size:22px;}
}
.related-grid{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;
}
@media (max-width:991.98px){.related-grid{grid-template-columns:repeat(2,minmax(0,1fr));}}
@media (max-width:767.98px){.related-grid{grid-template-columns:1fr;}}
.rcard{
  display:flex;flex-direction:column;overflow:hidden;
  transition:transform .22s ease-out,border-color .22s ease-out,box-shadow .22s ease-out;
}
.rcard:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:0 24px 44px -26px rgba(0,0,0,.85);}
.rcard-media{aspect-ratio:16/10;overflow:hidden;background:var(--ink-700);}
.rcard-media img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease-out;}
.rcard:hover .rcard-media img{transform:scale(1.03);}
.rcard-body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:10px;flex:1;}
.rcard-body h3{font-size:16px;line-height:1.55;font-weight:600;}
.rcard:hover .rcard-body h3{color:var(--brand-500);}
.rcard-meta{font-size:12px;color:var(--text-500);margin-top:auto;padding-top:6px;}

/* CTA */
.cta-band{padding:80px 0 0;}
@media (max-width:767.98px){.cta-band{padding:52px 0 0;}}
.cta-card{
  position:relative;overflow:hidden;
  border-radius:var(--radius-lg);
  padding:44px;
  border:1px solid var(--line);
  background:
    radial-gradient(600px 240px at 92% 110%,rgba(43,227,196,.16),transparent 70%),
    linear-gradient(160deg,rgba(255,255,255,.06),rgba(255,255,255,.015));
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
}
@supports not ((backdrop-filter:blur(1px)) or (-webkit-backdrop-filter:blur(1px))){
  .cta-card{background:radial-gradient(600px 240px at 92% 110%,rgba(43,227,196,.16),transparent 70%),#0D1422;}
}
.cta-inner{display:grid;grid-template-columns:1.15fr .85fr;gap:36px;align-items:center;position:relative;z-index:1;}
.cta-card h2{font-size:28px;line-height:1.35;letter-spacing:-.3px;margin-bottom:16px;}
.cta-points{display:grid;gap:10px;margin:0;}
.cta-points li{display:flex;align-items:flex-start;gap:10px;font-size:14px;color:var(--text-300);}
.cta-points li svg{flex:0 0 18px;margin-top:3px;color:var(--brand-500);}
.cta-right{display:flex;flex-direction:column;gap:14px;align-items:flex-start;}
.cta-hotline{font-size:13px;color:var(--text-500);line-height:1.9;}
.cta-hotline strong{display:block;font-size:22px;color:var(--text-100);letter-spacing:.5px;font-variant-numeric:tabular-nums;}
@media (max-width:991.98px){
  .cta-inner{grid-template-columns:1fr;gap:26px;}
  .cta-card{padding:30px;}
}
@media (max-width:767.98px){
  .cta-card h2{font-size:22px;}
  .cta-right{width:100%;}
  .cta-right .btn{width:100%;}
}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--ink-900);
  border-top:1px solid var(--line);
  padding:64px 0 0;margin-top:88px;
}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.1fr;gap:40px;}
@media (max-width:991.98px){.footer-grid{grid-template-columns:1fr 1fr;gap:32px;}}
@media (max-width:575.98px){.footer-grid{grid-template-columns:1fr;}}
.footer-brand .brand{display:inline-flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand p{font-size:14px;line-height:1.8;color:var(--text-500);max-width:340px;}
.footer-contact{margin-top:18px;font-size:13px;color:var(--text-500);line-height:1.95;}
.footer-contact strong{color:var(--text-100);font-size:15px;font-variant-numeric:tabular-nums;}
.footer-col h4{font-size:15px;color:var(--text-100);margin-bottom:16px;font-weight:600;letter-spacing:.3px;}
.footer-col ul{display:grid;gap:10px;}
.footer-col a{font-size:14px;color:var(--text-300);}
.footer-col a:hover{color:var(--brand-500);}
.qr-box{
  width:112px;height:112px;border-radius:12px;
  border:1px dashed var(--line-strong);
  display:flex;align-items:center;justify-content:center;text-align:center;
  font-size:12px;color:var(--text-500);line-height:1.6;
  background:rgba(255,255,255,.03);
}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:16px;
  border-top:1px solid var(--line);
  margin-top:48px;padding:20px 0 24px;
  font-size:13px;color:var(--text-500);
}
.footer-links{display:flex;flex-wrap:wrap;gap:18px;}
.footer-links a{color:var(--text-500);}
.footer-links a:hover{color:var(--brand-500);}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important;scroll-behavior:auto !important;}
  .rcard:hover,.btn:hover{transform:none !important;}
}

/* roulang page: category1 */
:root{
  --ink-900:#05080F;
  --ink-800:#0A101C;
  --ink-700:#121A2A;
  --brand-500:#2BE3C4;
  --brand-600:#12B9A2;
  --brand-glow:rgba(43,227,196,.35);
  --accent-500:#FFB020;
  --accent-600:#E08A00;
  --violet-500:#7C8CFF;
  --text-100:#EAF1F9;
  --text-300:#A9B8CC;
  --text-500:#6F8098;
  --line:rgba(140,180,220,.14);
  --line-strong:rgba(140,180,220,.28);
  --ok:#3DDC84;
  --warn:#FFB020;
  --error:#FF6B6B;
  --radius-lg:18px;
  --radius-md:14px;
  --radius-sm:12px;
  --shadow-card:0 20px 40px -24px rgba(0,0,0,.7);
  --glass-bg:linear-gradient(160deg,rgba(255,255,255,.06),rgba(255,255,255,.015));
  --container:1240px;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--ink-900);
  color:var(--text-300);
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
h1,h2,h3,h4,h5{color:var(--text-100);margin:0;font-weight:700;letter-spacing:-.2px;}
p{margin:0;}
a{color:inherit;text-decoration:none;transition:color .22s ease-out,opacity .22s ease-out;}
a:hover{color:var(--brand-500);}
img{display:block;max-width:100%;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
::selection{background:rgba(43,227,196,.28);color:var(--text-100);}
:focus-visible{outline:2px solid var(--brand-500);outline-offset:3px;}
.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 32px;
}
@media (max-width:992px){
  .container{padding:0 24px;}
}
@media (max-width:576px){
  .container{padding:0 16px;}
}

/* ---------- Header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:1040;
  background:rgba(5,8,15,.94);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.brand-row-inner{
  display:flex;
  align-items:center;
  gap:24px;
  height:72px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
  color:var(--text-100);
}
.brand:hover{color:var(--text-100);}
.brand-mark{
  display:grid;
  place-items:center;
  width:34px;
  height:34px;
  border-radius:10px;
  color:var(--brand-500);
  background:rgba(43,227,196,.12);
  border:1px solid rgba(43,227,196,.34);
}
.brand-text{
  font-size:19px;
  font-weight:700;
  letter-spacing:1px;
}
.brand-sub{
  position:relative;
  padding-left:13px;
  margin-left:3px;
  font-size:12px;
  letter-spacing:.4px;
  color:var(--text-500);
  border-left:1px solid var(--line-strong);
  line-height:1.2;
}
.hs-form{
  position:relative;
  flex:0 1 300px;
  min-width:0;
}
.hs-form .hs-icon{
  position:absolute;
  left:15px;
  top:50%;
  transform:translateY(-50%);
  color:var(--text-500);
  pointer-events:none;
}
.hs-form input{
  width:100%;
  height:42px;
  border-radius:999px;
  border:1px solid var(--line);
  background:rgba(255,255,255,.05);
  color:var(--text-100);
  font-size:14px;
  padding:0 16px 0 42px;
  transition:border-color .22s ease-out,box-shadow .22s ease-out,background .22s ease-out;
}
.hs-form input::placeholder{color:var(--text-500);}
.hs-form input:focus{
  outline:none;
  border-color:var(--brand-500);
  background:rgba(255,255,255,.07);
  box-shadow:0 0 0 3px rgba(43,227,196,.16);
}
.header-actions{
  display:flex;
  align-items:center;
  gap:10px;
  margin-left:auto;
  flex:0 0 auto;
}
.btn-brand,
.btn-ghost,
.btn-accent{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 24px;
  border-radius:12px;
  font-size:15px;
  font-weight:700;
  border:1px solid transparent;
  cursor:pointer;
  transition:transform .22s ease-out,box-shadow .22s ease-out,background .22s ease-out,color .22s ease-out,border-color .22s ease-out,filter .22s ease-out;
}
.btn-brand{
  background:var(--brand-500);
  color:#04211D;
  box-shadow:0 0 0 1px rgba(43,227,196,.5),0 10px 28px -8px var(--brand-glow);
}
.btn-brand:hover{
  color:#04211D;
  filter:brightness(1.06);
  transform:translateY(-2px);
  box-shadow:0 0 0 1px rgba(43,227,196,.6),0 14px 36px -8px var(--brand-glow);
}
.btn-brand:active{transform:translateY(0);}
.btn-ghost{
  background:transparent;
  color:var(--text-100);
  border-color:var(--line-strong);
}
.btn-ghost:hover{
  color:var(--brand-500);
  border-color:var(--brand-500);
  transform:translateY(-2px);
}
.btn-ghost:active{transform:translateY(0);}
.btn-accent{
  background:var(--accent-500);
  color:#22160A;
  box-shadow:0 0 0 1px rgba(255,176,32,.45),0 10px 28px -10px rgba(255,176,32,.5);
}
.btn-accent:hover{
  color:#22160A;
  filter:brightness(1.06);
  transform:translateY(-2px);
  box-shadow:0 0 0 1px rgba(255,176,32,.6),0 14px 34px -10px rgba(255,176,32,.55);
}
.btn-accent:active{transform:translateY(0);}
.header-cta{height:42px;padding:0 20px;font-size:14px;}
.icon-btn{
  display:none;
  place-items:center;
  width:42px;
  height:42px;
  border-radius:999px;
  border:1px solid var(--line);
  background:rgba(255,255,255,.05);
  color:var(--text-300);
  cursor:pointer;
  transition:color .22s ease-out,border-color .22s ease-out;
}
.icon-btn:hover{color:var(--brand-500);border-color:var(--brand-500);}
.channel-wrap{position:relative;}
.channel-scroll{
  display:flex;
  align-items:center;
  gap:8px;
  height:48px;
  overflow-x:auto;
  scrollbar-width:none;
  -ms-overflow-style:none;
}
.channel-scroll::-webkit-scrollbar{display:none;}
.pill{
  flex:0 0 auto;
  display:inline-flex;
  align-items:center;
  height:34px;
  padding:0 16px;
  border-radius:999px;
  font-size:14px;
  color:var(--text-300);
  border:1px solid transparent;
  transition:color .22s ease-out,background .22s ease-out,border-color .22s ease-out;
}
.pill:hover{color:var(--text-100);background:rgba(255,255,255,.08);}
.pill.active{
  color:var(--text-100);
  background:rgba(43,227,196,.12);
  border-color:var(--brand-500);
}
.nav-toggle{
  display:none;
  place-items:center;
  width:42px;
  height:42px;
  border-radius:12px;
  border:1px solid var(--line-strong);
  background:rgba(255,255,255,.04);
  color:var(--text-100);
  cursor:pointer;
  transition:border-color .22s ease-out,color .22s ease-out;
}
.nav-toggle:hover{border-color:var(--brand-500);color:var(--brand-500);}
@media (max-width:992px){
  .hs-form{flex:0 1 220px;}
  .brand-sub{display:none;}
}
@media (max-width:768px){
  .brand-row-inner{height:60px;gap:12px;}
  .hs-form{display:none;}
  .icon-btn{display:inline-grid;}
  .nav-toggle{display:inline-grid;}
  .header-cta{height:40px;padding:0 14px;font-size:13px;}
  .brand-text{font-size:17px;}
  .channel-scroll{height:42px;gap:6px;}
  .pill{height:30px;font-size:13px;padding:0 13px;}
}
@media (max-width:420px){
  .header-cta{display:none;}
}

/* ---------- Offcanvas drawer ---------- */
.drawer{
  background:var(--ink-800) !important;
  border-left:1px solid var(--line) !important;
  color:var(--text-300);
  width:320px;
}
.drawer .offcanvas-header{border-bottom:1px solid var(--line);padding:18px 20px;}
.drawer .offcanvas-title{font-size:16px;color:var(--text-100);}
.drawer .btn-close{filter:invert(1) grayscale(1) brightness(1.6);opacity:.7;}
.drawer .offcanvas-body{padding:20px;}
.drawer-search{
  position:relative;
  margin-bottom:18px;
}
.drawer-search input{
  width:100%;
  height:44px;
  border-radius:999px;
  border:1px solid var(--line);
  background:rgba(255,255,255,.05);
  color:var(--text-100);
  font-size:14px;
  padding:0 16px 0 40px;
}
.drawer-search input:focus{outline:none;border-color:var(--brand-500);box-shadow:0 0 0 3px rgba(43,227,196,.16);}
.drawer-search i{position:absolute;left:15px;top:50%;transform:translateY(-50%);color:var(--text-500);font-size:14px;}
.drawer-nav{display:grid;gap:6px;margin-bottom:22px;}
.drawer-nav a{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:12px 14px;
  border-radius:12px;
  font-size:15px;
  color:var(--text-300);
  border:1px solid transparent;
}
.drawer-nav a:hover{background:rgba(255,255,255,.05);color:var(--text-100);}
.drawer-nav a.active{
  color:var(--text-100);
  background:rgba(43,227,196,.12);
  border-color:rgba(43,227,196,.5);
}
.drawer-cta{width:100%;}

/* ---------- Glass card ---------- */
.glass{
  background:var(--glass-bg);
  background-color:rgba(18,26,42,.72);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-card),inset 0 1px 0 rgba(255,255,255,.12);
}
@supports not ((backdrop-filter:blur(2px)) or (-webkit-backdrop-filter:blur(2px))){
  .glass{background-color:var(--ink-700);}
}

/* ---------- Breadcrumb ---------- */
.breadcrumb-line{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:13px;
  color:var(--text-500);
  margin-bottom:26px;
  flex-wrap:wrap;
}
.breadcrumb-line a{color:var(--text-500);}
.breadcrumb-line a:hover{color:var(--brand-500);}
.breadcrumb-line .sep{color:rgba(111,128,152,.6);}
.breadcrumb-line .current{color:var(--text-300);}

/* ---------- Page hero ---------- */
.page-hero{
  position:relative;
  overflow:hidden;
  padding:40px 0 72px;
  border-bottom:1px solid var(--line);
}
.page-hero::before{
  content:"";
  position:absolute;
  inset:0;
  background:url(/assets/images/backpic/back-1.png) center/cover no-repeat;
  opacity:.22;
  z-index:0;
}
.page-hero::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,rgba(5,8,15,.72) 0%,rgba(5,8,15,.9) 58%,rgba(5,8,15,.99) 100%);
  z-index:1;
}
.page-hero .container{position:relative;z-index:2;}
.hero-grid{
  display:grid;
  grid-template-columns:1.6fr .9fr;
  gap:44px;
  align-items:center;
}
.hero-badge{
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:28px;
  padding:0 12px;
  border-radius:6px;
  font-size:12px;
  font-weight:500;
  letter-spacing:.3px;
  color:var(--brand-500);
  background:rgba(43,227,196,.1);
  border:1px solid rgba(43,227,196,.34);
  margin-bottom:20px;
}
.hero-badge .dot{
  width:6px;
  height:6px;
  border-radius:50%;
  background:var(--brand-500);
  box-shadow:0 0 0 3px rgba(43,227,196,.18);
}
.hero-grid h1{
  font-size:38px;
  line-height:1.32;
  letter-spacing:-.5px;
  margin-bottom:18px;
}
.hero-lead{
  font-size:17px;
  line-height:1.8;
  color:var(--text-300);
  max-width:620px;
  margin-bottom:26px;
}
.hero-actions{
  display:flex;
  gap:14px;
  flex-wrap:wrap;
}
.hero-stats{
  padding:26px 24px;
}
.hero-stats .stats-title{
  font-size:13px;
  color:var(--text-500);
  letter-spacing:.4px;
  margin-bottom:18px;
}
.mini-stats{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:14px;
}
.mini-stat .num{
  font-variant-numeric:tabular-nums;
  font-size:30px;
  font-weight:700;
  line-height:1.1;
  color:var(--brand-500);
}
.mini-stat .num .unit{
  font-size:13px;
  font-weight:500;
  color:var(--text-300);
  margin-left:3px;
}
.mini-stat .label{
  font-size:12px;
  color:var(--text-500);
  line-height:1.6;
  margin-top:6px;
}
.hero-stats .bar{
  height:3px;
  border-radius:99px;
  background:rgba(255,255,255,.07);
  margin-top:22px;
  overflow:hidden;
}
.hero-stats .bar span{
  display:block;
  height:100%;
  width:74%;
  border-radius:99px;
  background:linear-gradient(90deg,var(--brand-600),var(--brand-500));
}
@media (max-width:992px){
  .hero-grid{grid-template-columns:1fr;gap:30px;}
  .hero-grid h1{font-size:32px;}
}
@media (max-width:768px){
  .page-hero{padding:26px 0 52px;}
  .hero-grid h1{font-size:27px;line-height:1.38;}
  .hero-lead{font-size:15px;}
  .btn-brand,.btn-ghost,.btn-accent{height:46px;padding:0 20px;font-size:14px;}
  .hero-actions .btn-brand,.hero-actions .btn-ghost{flex:1 1 auto;}
}

/* ---------- Section base ---------- */
.section{
  padding:88px 0;
  scroll-margin-top:130px;
}
.section-alt{
  background:var(--ink-800);
  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:28px;
  margin-bottom:32px;
  flex-wrap:wrap;
}
.section-head h2{
  font-size:28px;
  line-height:1.35;
  margin-bottom:10px;
}
.section-head .sub{
  font-size:14px;
  color:var(--text-500);
  max-width:540px;
}
.text-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14px;
  font-weight:600;
  color:var(--brand-500);
  white-space:nowrap;
}
.text-link .ar{transition:transform .22s ease-out;display:inline-block;}
.text-link:hover{color:var(--brand-500);}
.text-link:hover .ar{transform:translateX(4px);}
@media (max-width:768px){
  .section{padding:52px 0;}
  .section-head h2{font-size:23px;}
}

/* ---------- Filter pills ---------- */
.filter-row{
  display:flex;
  gap:10px;
  flex-wrap:wrap;
  margin-bottom:32px;
}
.filter-pill{
  display:inline-flex;
  align-items:center;
  height:36px;
  padding:0 18px;
  border-radius:999px;
  font-size:14px;
  color:var(--text-300);
  background:rgba(255,255,255,.04);
  border:1px solid var(--line);
  cursor:pointer;
  transition:color .22s ease-out,border-color .22s ease-out,background .22s ease-out;
}
.filter-pill:hover{color:var(--text-100);border-color:var(--line-strong);}
.filter-pill.is-on{
  color:var(--text-100);
  background:rgba(43,227,196,.12);
  border-color:var(--brand-500);
}

/* ---------- Feature plan card ---------- */
.plan-feature{
  display:grid;
  grid-template-columns:4fr 6fr;
  overflow:hidden;
  margin-bottom:24px;
  transition:transform .22s ease-out,border-color .22s ease-out;
}
.plan-feature:hover{
  transform:translateY(-4px);
  border-color:var(--line-strong);
}
.plan-feature-media{
  position:relative;
  overflow:hidden;
  min-height:320px;
}
.plan-feature-media img{
  width:100%;
  height:100%;
  min-height:320px;
  object-fit:cover;
  aspect-ratio:4/3;
  transition:transform .26s ease-out;
}
.plan-feature:hover .plan-feature-media img{transform:scale(1.03);}
.plan-feature-media::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(90deg,rgba(5,8,15,0) 40%,rgba(18,26,42,.72) 100%);
}
.plan-feature-body{
  padding:32px;
  display:flex;
  flex-direction:column;
  gap:14px;
}
.tag{
  display:inline-flex;
  align-items:center;
  height:24px;
  padding:0 10px;
  border-radius:6px;
  font-size:12px;
  font-weight:500;
  letter-spacing:.3px;
  border:1px solid transparent;
  width:fit-content;
}
.tag-brand{
  color:var(--brand-500);
  background:rgba(43,227,196,.1);
  border-color:rgba(43,227,196,.32);
}
.tag-accent{
  color:var(--accent-500);
  background:rgba(255,176,32,.1);
  border-color:rgba(255,176,32,.35);
}
.tag-muted{
  color:var(--text-300);
  background:rgba(255,255,255,.05);
  border-color:var(--line);
}
.plan-feature-body h3{
  font-size:22px;
  line-height:1.45;
}
.plan-feature-body p{
  font-size:15px;
  line-height:1.85;
  color:var(--text-300);
}
.check-list{display:grid;gap:9px;margin-top:2px;}
.check-list li{
  position:relative;
  padding-left:24px;
  font-size:14px;
  color:var(--text-300);
  line-height:1.7;
}
.check-list li::before{
  content:"✓";
  position:absolute;
  left:0;
  top:0;
  color:var(--brand-500);
  font-weight:700;
  font-size:13px;
}
.plan-feature-body .text-link{margin-top:auto;padding-top:8px;}

/* ---------- Plan grid ---------- */
.plan-grid{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:20px;
}
.plan-card{
  padding:26px;
  display:flex;
  flex-direction:column;
  gap:12px;
  transition:transform .22s ease-out,border-color .22s ease-out;
}
.plan-card:hover{
  transform:translateY(-4px);
  border-color:var(--line-strong);
}
.plan-card-top{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
}
.plan-no{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-width:34px;
  height:24px;
  padding:0 8px;
  border-radius:6px;
  font-size:12px;
  font-variant-numeric:tabular-nums;
  letter-spacing:.5px;
  color:var(--text-300);
  background:rgba(255,255,255,.05);
  border:1px solid var(--line);
}
.plan-ico{
  display:grid;
  place-items:center;
  width:40px;
  height:40px;
  border-radius:12px;
  color:var(--brand-500);
  background:rgba(43,227,196,.1);
  border:1px solid rgba(43,227,196,.28);
  font-size:16px;
}
.plan-card h3{
  font-size:19px;
  line-height:1.5;
}
.plan-card p{
  font-size:14px;
  line-height:1.8;
  color:var(--text-300);
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.plan-card .text-link{margin-top:auto;padding-top:6px;}
@media (max-width:768px){
  .plan-feature{grid-template-columns:1fr;}
  .plan-feature-media,.plan-feature-media img{min-height:200px;aspect-ratio:16/10;}
  .plan-feature-media::after{background:linear-gradient(180deg,rgba(5,8,15,0) 40%,rgba(18,26,42,.8) 100%);}
  .plan-feature-body{padding:22px;}
  .plan-feature-body h3{font-size:19px;}
  .plan-grid{grid-template-columns:1fr;gap:16px;}
  .plan-card{padding:20px;}
}

/* ---------- Process strip ---------- */
.process-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:20px;
}
.process-card{
  padding:24px;
  position:relative;
  transition:transform .22s ease-out,border-color .22s ease-out;
}
.process-card:hover{transform:translateY(-4px);border-color:var(--line-strong);}
.process-step{
  font-size:12px;
  letter-spacing:.4px;
  color:var(--brand-500);
  font-variant-numeric:tabular-nums;
  margin-bottom:10px;
}
.process-card h3{font-size:17px;line-height:1.5;margin-bottom:8px;}
.process-card p{font-size:14px;line-height:1.75;color:var(--text-300);}
@media (max-width:992px){
  .process-grid{grid-template-columns:repeat(2,1fr);}
}
@media (max-width:576px){
  .process-grid{grid-template-columns:1fr;gap:16px;}
}

/* ---------- Switch cards ---------- */
.switch-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:20px;
}
.switch-card{
  display:flex;
  align-items:center;
  gap:16px;
  padding:22px;
  transition:transform .22s ease-out,border-color .22s ease-out;
}
.switch-card:hover{transform:translateY(-4px);border-color:var(--brand-500);}
.switch-card .ico{
  display:grid;
  place-items:center;
  width:44px;
  height:44px;
  flex:0 0 auto;
  border-radius:12px;
  color:var(--brand-500);
  background:rgba(43,227,196,.1);
  border:1px solid rgba(43,227,196,.26);
  font-size:17px;
}
.switch-card h3{font-size:16px;line-height:1.5;margin-bottom:4px;}
.switch-card p{font-size:13px;color:var(--text-500);line-height:1.6;}
.switch-card .ar{margin-left:auto;color:var(--text-500);transition:transform .22s ease-out,color .22s ease-out;}
.switch-card:hover .ar{color:var(--brand-500);transform:translateX(4px);}
@media (max-width:768px){
  .switch-grid{grid-template-columns:1fr;gap:14px;}
}

/* ---------- FAQ ---------- */
.faq-grid{
  display:grid;
  grid-template-columns:.9fr 1.4fr;
  gap:48px;
  align-items:start;
}
.faq-intro h2{font-size:28px;line-height:1.35;margin-bottom:14px;}
.faq-intro p{font-size:15px;color:var(--text-300);line-height:1.85;margin-bottom:18px;}
.faq-acc .accordion-item{
  background:var(--glass-bg);
  background-color:rgba(18,26,42,.7);
  border:1px solid var(--line);
  border-radius:14px;
  margin-bottom:10px;
  overflow:hidden;
}
.faq-acc .accordion-button{
  background:transparent;
  color:var(--text-100);
  font-size:17px;
  font-weight:600;
  line-height:1.6;
  padding:20px 22px;
  box-shadow:none;
  border-radius:14px;
}
.faq-acc .accordion-button:focus{box-shadow:none;outline:none;}
.faq-acc .accordion-button:focus-visible{outline:2px solid var(--brand-500);outline-offset:-3px;}
.faq-acc .accordion-button:not(.collapsed){
  background:rgba(43,227,196,.06);
  color:var(--text-100);
  box-shadow:inset 4px 0 0 var(--brand-500);
}
.faq-acc .accordion-button::after{
  background-image:none;
  content:"+";
  display:grid;
  place-items:center;
  width:26px;
  height:26px;
  font-size:17px;
  font-weight:600;
  line-height:1;
  color:var(--brand-500);
  border:1px solid var(--line-strong);
  border-radius:8px;
  transform:none;
  transition:transform .22s ease-out,border-color .22s ease-out;
}
.faq-acc .accordion-button:not(.collapsed)::after{
  content:"−";
  transform:none;
  border-color:var(--brand-500);
}
.faq-acc .accordion-body{
  padding:0 22px 22px;
  font-size:15px;
  line-height:1.85;
  color:var(--text-300);
}
@media (max-width:992px){
  .faq-grid{grid-template-columns:1fr;gap:26px;}
}
@media (max-width:768px){
  .faq-intro h2{font-size:23px;}
  .faq-acc .accordion-button{font-size:15px;padding:16px 18px;}
  .faq-acc .accordion-body{padding:0 18px 18px;font-size:14px;}
}

/* ---------- CTA ---------- */
.cta-card{
  display:grid;
  grid-template-columns:6fr 5fr;
  gap:44px;
  padding:44px;
  position:relative;
  overflow:hidden;
}
.cta-card::after{
  content:"";
  position:absolute;
  right:-120px;
  bottom:-160px;
  width:420px;
  height:420px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(43,227,196,.16),rgba(43,227,196,0) 68%);
  pointer-events:none;
}
.cta-copy{position:relative;z-index:2;}
.cta-copy h2{font-size:30px;line-height:1.35;margin-bottom:16px;}
.cta-points{display:grid;gap:10px;margin:20px 0 26px;}
.cta-points li{
  position:relative;
  padding-left:26px;
  font-size:15px;
  color:var(--text-300);
}
.cta-points li::before{
  content:"✓";
  position:absolute;
  left:0;
  top:0;
  color:var(--brand-500);
  font-weight:700;
}
.cta-contact{
  font-size:14px;
  color:var(--text-500);
  line-height:1.9;
}
.cta-contact strong{
  color:var(--text-100);
  font-variant-numeric:tabular-nums;
  font-size:18px;
  letter-spacing:.5px;
}
.cta-form{position:relative;z-index:2;display:grid;gap:14px;}
.field label{
  display:block;
  font-size:13px;
  color:var(--text-500);
  margin-bottom:7px;
  letter-spacing:.2px;
}
.field input,
.field select,
.field textarea{
  width:100%;
  height:48px;
  border-radius:12px;
  border:1px solid var(--line);
  background:rgba(255,255,255,.04);
  color:var(--text-100);
  font-size:15px;
  padding:0 14px;
  transition:border-color .22s ease-out,box-shadow .22s ease-out;
}
.field textarea{height:88px;padding:12px 14px;resize:vertical;line-height:1.7;}
.field select{appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--text-500) 50%),linear-gradient(135deg,var(--text-500) 50%,transparent 50%);background-position:calc(100% - 20px) 21px,calc(100% - 15px) 21px;background-size:5px 5px,5px 5px;background-repeat:no-repeat;}
.field input::placeholder,.field textarea::placeholder{color:var(--text-500);}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;
  border-color:var(--brand-500);
  box-shadow:0 0 0 3px rgba(43,227,196,.16);
}
.field select option{background:var(--ink-700);color:var(--text-100);}
.form-note{
  font-size:13px;
  color:var(--brand-500);
  min-height:20px;
}
@media (max-width:992px){
  .cta-card{grid-template-columns:1fr;gap:32px;padding:32px;}
  .cta-copy h2{font-size:24px;}
}
@media (max-width:768px){
  .cta-card{padding:22px;}
  .cta-form .btn-accent{width:100%;}
}

/* ---------- Footer ---------- */
.site-footer{
  background:var(--ink-900);
  border-top:1px solid var(--line);
  padding:64px 0 0;
  margin-top:0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.7fr 1fr 1fr 1fr;
  gap:44px;
  padding-bottom:48px;
}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand p{
  font-size:14px;
  line-height:1.9;
  color:var(--text-500);
  max-width:340px;
  margin-bottom:18px;
}
.footer-contact{
  font-size:13px;
  line-height:1.95;
  color:var(--text-500);
}
.footer-contact strong{
  color:var(--text-100);
  font-variant-numeric:tabular-nums;
  letter-spacing:.5px;
}
.footer-col h4{
  font-size:14px;
  color:var(--text-100);
  letter-spacing:.4px;
  margin-bottom:16px;
  font-weight:600;
}
.footer-col ul{display:grid;gap:10px;}
.footer-col a{
  font-size:14px;
  color:var(--text-500);
}
.footer-col a:hover{color:var(--brand-500);}
.qr-box{
  width:96px;
  height:96px;
  border-radius:12px;
  border:1px dashed var(--line-strong);
  background:rgba(255,255,255,.03);
  display:grid;
  place-items:center;
  text-align:center;
  font-size:12px;
  line-height:1.6;
  color:var(--text-500);
}
.footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  flex-wrap:wrap;
  padding:20px 0 26px;
  border-top:1px solid var(--line);
  font-size:13px;
  color:var(--text-500);
}
.footer-links{
  display:flex;
  gap:20px;
  flex-wrap:wrap;
}
.footer-links a{color:var(--text-500);font-size:13px;}
.footer-links a:hover{color:var(--brand-500);}
@media (max-width:992px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px;}
}
@media (max-width:576px){
  .site-footer{padding-top:44px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:32px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:12px;}
}

@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;scroll-behavior:auto !important;}
  .plan-feature:hover,.plan-card:hover,.process-card:hover,.switch-card:hover{transform:none;}
}

/* roulang page: category3 */
:root{
  --ink-900:#05080F;
  --ink-800:#0A101C;
  --ink-700:#121A2A;
  --brand-500:#2BE3C4;
  --brand-600:#12B9A2;
  --brand-glow:rgba(43,227,196,.35);
  --accent-500:#FFB020;
  --accent-600:#E08A00;
  --violet-500:#7C8CFF;
  --text-100:#EAF1F9;
  --text-300:#A9B8CC;
  --text-500:#6F8098;
  --line:rgba(140,180,220,.14);
  --line-strong:rgba(140,180,220,.28);
  --ok:#3DDC84;
  --warn:#FFB020;
  --error:#FF6B6B;
  --radius-xl:22px;
  --radius-lg:18px;
  --radius-md:12px;
  --radius-sm:8px;
  --shadow-card:0 20px 40px -24px rgba(0,0,0,.7);
  --shadow-soft:0 12px 30px -20px rgba(0,0,0,.85);
  --glass:linear-gradient(160deg,rgba(255,255,255,.06),rgba(255,255,255,.015));
  --ease:cubic-bezier(.22,.61,.36,1);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--ink-900);
  color:var(--text-300);
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--brand-500);text-decoration:none;transition:color .22s var(--ease),opacity .22s var(--ease)}
a:hover{color:var(--brand-600)}
button{font-family:inherit}
h1,h2,h3,h4{color:var(--text-100);margin:0;font-weight:700;letter-spacing:-.2px}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--brand-500);outline-offset:3px;border-radius:6px}

.container{
  width:100%;
  max-width:1240px;
  margin-inline:auto;
  padding-left:32px;
  padding-right:32px;
}
@media (max-width:991.98px){.container{padding-left:24px;padding-right:24px}}
@media (max-width:575.98px){.container{padding-left:16px;padding-right:16px}}

/* ============ Header ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:1040;
  background:rgba(5,8,15,.82);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  border-bottom:1px solid var(--line);
  transition:background .25s var(--ease),box-shadow .25s var(--ease);
}
.site-header.is-scrolled{
  background:rgba(5,8,15,.94);
  box-shadow:0 18px 40px -30px rgba(0,0,0,.95);
}
.header-main-inner{
  display:flex;
  align-items:center;
  gap:20px;
  height:72px;
  transition:height .25s var(--ease);
}
.site-header.is-scrolled .header-main-inner{height:60px}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  color:var(--text-100);
  flex-shrink:0;
}
.brand:hover{color:var(--text-100)}
.brand-mark{
  display:grid;
  place-items:center;
  width:36px;height:36px;
  border-radius:11px;
  color:var(--brand-500);
  background:linear-gradient(150deg,rgba(43,227,196,.20),rgba(124,140,255,.12));
  border:1px solid rgba(43,227,196,.34);
  box-shadow:0 0 0 1px rgba(43,227,196,.10),0 8px 20px -14px var(--brand-glow);
}
.brand-text{
  font-size:19px;
  font-weight:700;
  letter-spacing:1px;
  white-space:nowrap;
}
.brand-sub{
  display:inline-block;
  padding-left:12px;
  margin-left:4px;
  border-left:1px solid var(--line-strong);
  font-size:12px;
  font-weight:500;
  letter-spacing:.3px;
  color:var(--text-500);
  white-space:nowrap;
}
.header-search{
  position:relative;
  flex:1 1 auto;
  max-width:320px;
  margin-left:8px;
}
.header-search svg{
  position:absolute;
  left:15px;top:50%;
  transform:translateY(-50%);
  color:var(--text-500);
  pointer-events:none;
}
.header-search input{
  width:100%;
  height:42px;
  padding:0 16px 0 42px;
  border-radius:999px;
  border:1px solid var(--line);
  background:rgba(255,255,255,.045);
  color:var(--text-100);
  font-size:14px;
  transition:border-color .22s var(--ease),box-shadow .22s var(--ease),background .22s var(--ease);
}
.header-search input::placeholder{color:var(--text-500)}
.header-search input:focus{
  outline:none;
  border-color:var(--brand-500);
  background:rgba(255,255,255,.07);
  box-shadow:0 0 0 3px rgba(43,227,196,.16);
}
.header-actions{
  display:flex;
  align-items:center;
  gap:12px;
  margin-left:auto;
  flex-shrink:0;
}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 24px;
  border-radius:var(--radius-md);
  border:1px solid transparent;
  font-size:15px;
  font-weight:600;
  letter-spacing:.2px;
  cursor:pointer;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),background .22s var(--ease),border-color .22s var(--ease),color .22s var(--ease);
  white-space:nowrap;
}
.btn-brand{
  background:var(--brand-500);
  color:#04211D;
  box-shadow:0 0 0 1px rgba(43,227,196,.5),0 10px 28px -8px var(--brand-glow);
}
.btn-brand:hover{
  background:#3EEACD;
  color:#04211D;
  transform:translateY(-2px);
  box-shadow:0 0 0 1px rgba(43,227,196,.6),0 14px 36px -8px var(--brand-glow);
}
.btn-brand:active{transform:translateY(0)}
.btn-ghost{
  background:transparent;
  border-color:var(--line-strong);
  color:var(--text-100);
}
.btn-ghost:hover{
  border-color:var(--brand-500);
  color:var(--brand-500);
  transform:translateY(-2px);
}
.btn-ghost:active{transform:translateY(0)}
.btn-accent{
  background:var(--accent-500);
  color:#26160A;
  box-shadow:0 0 0 1px rgba(255,176,32,.5),0 12px 30px -10px rgba(255,176,32,.45);
}
.btn-accent:hover{
  background:#FFC04A;
  color:#26160A;
  transform:translateY(-2px);
  box-shadow:0 0 0 1px rgba(255,176,32,.6),0 16px 38px -10px rgba(255,176,32,.5);
}
.btn-accent:active{transform:translateY(0)}
.btn-sm{height:42px;padding:0 20px;font-size:14px;border-radius:10px}
.header-actions .btn{height:42px;padding:0 20px;font-size:14px;border-radius:10px}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  border-radius:12px;
  border:1px solid var(--line-strong);
  background:rgba(255,255,255,.04);
  padding:0;
  cursor:pointer;
  align-items:center;
  justify-content:center;
  flex-direction:column;
  gap:4px;
}
.nav-toggle span{
  display:block;
  width:18px;height:2px;
  border-radius:2px;
  background:var(--text-100);
}

/* channel tabs */
.channel-bar{
  border-top:1px solid var(--line);
  background:rgba(10,16,28,.55);
}
.channel-scroll{
  display:flex;
  align-items:center;
  gap:8px;
  height:52px;
  overflow-x:auto;
  scrollbar-width:none;
  -ms-overflow-style:none;
  -webkit-overflow-scrolling:touch;
  mask-image:linear-gradient(90deg,transparent 0,#000 14px,#000 calc(100% - 14px),transparent 100%);
  -webkit-mask-image:linear-gradient(90deg,transparent 0,#000 14px,#000 calc(100% - 14px),transparent 100%);
}
.channel-scroll::-webkit-scrollbar{display:none}
.pill{
  display:inline-flex;
  align-items:center;
  height:34px;
  padding:0 16px;
  border-radius:999px;
  border:1px solid transparent;
  color:var(--text-300);
  font-size:14px;
  font-weight:500;
  white-space:nowrap;
  transition:background .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease);
}
.pill:hover{
  color:var(--text-100);
  background:rgba(255,255,255,.08);
}
.pill.active{
  color:var(--text-100);
  background:rgba(43,227,196,.12);
  border-color:rgba(43,227,196,.55);
}

/* mobile offcanvas */
.mobile-nav{
  background:var(--ink-800);
  border-left:1px solid var(--line);
  color:var(--text-300);
  width:min(86vw,340px);
}
.mobile-nav .offcanvas-header{
  border-bottom:1px solid var(--line);
  padding:18px 20px;
}
.mobile-nav .offcanvas-title{color:var(--text-100);font-size:16px;font-weight:700}
.mobile-nav .btn-close{filter:invert(1) grayscale(1) brightness(1.6);opacity:.7}
.mobile-nav-body{padding:18px 20px 26px}
.mobile-nav-body .nav-line{
  display:block;
  padding:13px 14px;
  border-radius:12px;
  border:1px solid var(--line);
  margin-bottom:10px;
  color:var(--text-300);
  font-size:15px;
  background:rgba(255,255,255,.03);
}
.mobile-nav-body .nav-line.active{
  color:var(--text-100);
  border-color:rgba(43,227,196,.55);
  background:rgba(43,227,196,.12);
}
.mobile-nav-body .btn{width:100%;margin-top:8px}

/* ============ Page hero ============ */
.page-hero{
  position:relative;
  overflow:hidden;
  padding:56px 0 64px;
  border-bottom:1px solid var(--line);
  background:
    radial-gradient(560px 320px at 12% 0%,rgba(43,227,196,.12),transparent 70%),
    radial-gradient(520px 300px at 88% 100%,rgba(124,140,255,.11),transparent 70%),
    linear-gradient(180deg,rgba(5,8,15,.92),rgba(5,8,15,.98)),
    url('/assets/images/backpic/back-2.png');
  background-size:auto,auto,auto,cover;
  background-position:center,center,center,center top;
}
.breadcrumb-trail{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:8px;
  font-size:13px;
  color:var(--text-500);
  margin-bottom:28px;
}
.breadcrumb-trail a{color:var(--text-500)}
.breadcrumb-trail a:hover{color:var(--brand-500)}
.breadcrumb-trail .sep{color:var(--line-strong)}
.breadcrumb-trail [aria-current]{color:var(--text-300)}
.page-hero-grid{
  display:grid;
  grid-template-columns:minmax(0,1.55fr) minmax(0,.85fr);
  gap:40px;
  align-items:end;
}
.badge-brand{
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:28px;
  padding:0 12px;
  margin-bottom:20px;
  border-radius:var(--radius-sm);
  border:1px solid rgba(43,227,196,.36);
  background:rgba(43,227,196,.10);
  color:var(--brand-500);
  font-size:12px;
  font-weight:500;
  letter-spacing:.3px;
}
.badge-brand::before{
  content:"";
  width:6px;height:6px;
  border-radius:50%;
  background:var(--brand-500);
  box-shadow:0 0 0 3px rgba(43,227,196,.18);
}
.page-hero h1{
  font-size:42px;
  line-height:1.22;
  letter-spacing:-.6px;
  max-width:16em;
}
.hero-lead{
  margin-top:18px;
  max-width:34em;
  font-size:16px;
  line-height:1.8;
  color:var(--text-300);
}
.hero-side{
  display:flex;
  flex-direction:column;
  gap:14px;
  align-items:flex-start;
  padding:24px;
  border-radius:var(--radius-lg);
  border:1px solid var(--line);
  background:var(--glass);
  box-shadow:var(--shadow-card),inset 0 1px 0 rgba(255,255,255,.12);
}
.hero-side-note{
  font-size:13px;
  line-height:1.7;
  color:var(--text-500);
}
.hero-side .mini-stat{
  display:flex;
  gap:22px;
  width:100%;
  padding-top:16px;
  border-top:1px solid var(--line);
}
.hero-side .mini-stat div{flex:1}
.hero-side .mini-stat strong{
  display:block;
  font-size:22px;
  font-weight:700;
  color:var(--text-100);
  font-variant-numeric:tabular-nums;
  line-height:1.2;
}
.hero-side .mini-stat span{
  font-size:12px;
  color:var(--text-500);
}

/* ============ Sections ============ */
.section{padding:88px 0}
.section-sm{padding:64px 0}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:28px;
  margin-bottom:34px;
}
.eyebrow{
  display:block;
  font-size:12px;
  font-weight:600;
  letter-spacing:1.6px;
  text-transform:uppercase;
  color:var(--brand-500);
  margin-bottom:12px;
}
.section-head h2{font-size:30px;line-height:1.35}
.section-head .head-note{
  font-size:14px;
  color:var(--text-500);
  max-width:26em;
  text-align:right;
}
.text-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14px;
  font-weight:600;
  color:var(--brand-500);
  transition:color .22s var(--ease);
}
.text-link span{transition:transform .22s var(--ease);display:inline-block}
.text-link:hover{color:var(--brand-600)}
.text-link:hover span{transform:translateX(4px)}

/* filter pills */
.filter-row{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-bottom:40px;
}
.filter-chip{
  display:inline-flex;
  align-items:center;
  height:36px;
  padding:0 16px;
  border-radius:999px;
  border:1px solid var(--line);
  background:rgba(255,255,255,.03);
  color:var(--text-300);
  font-size:13.5px;
  cursor:pointer;
  transition:all .22s var(--ease);
}
.filter-chip:hover{color:var(--text-100);border-color:var(--line-strong);background:rgba(255,255,255,.06)}
.filter-chip.active{
  color:var(--text-100);
  background:rgba(43,227,196,.12);
  border-color:rgba(43,227,196,.55);
}

/* ============ Case masonry ============ */
.case-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:28px;
  align-items:start;
}
.case-col{display:flex;flex-direction:column;gap:28px}
.case-col.offset{padding-top:44px}
.case-card{
  border-radius:var(--radius-lg);
  border:1px solid var(--line);
  background:var(--glass);
  box-shadow:var(--shadow-card),inset 0 1px 0 rgba(255,255,255,.10);
  overflow:hidden;
  transition:transform .24s var(--ease),border-color .24s var(--ease),box-shadow .24s var(--ease);
}
.case-card:hover{
  transform:translateY(-4px);
  border-color:var(--line-strong);
  box-shadow:0 26px 52px -28px rgba(0,0,0,.9),inset 0 1px 0 rgba(255,255,255,.14);
}
.case-thumb{
  position:relative;
  aspect-ratio:16/10;
  overflow:hidden;
  background:var(--ink-700);
}
.case-thumb img{
  width:100%;height:100%;
  object-fit:cover;
  transition:transform .4s var(--ease);
}
.case-card:hover .case-thumb img{transform:scale(1.03)}
.case-thumb::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,rgba(5,8,15,.05) 0%,rgba(5,8,15,.62) 100%);
}
.badge-tag{
  position:absolute;
  left:16px;bottom:14px;
  z-index:2;
  display:inline-flex;
  align-items:center;
  height:26px;
  padding:0 10px;
  border-radius:6px;
  border:1px solid rgba(43,227,196,.42);
  background:rgba(5,8,15,.72);
  backdrop-filter:blur(8px);
  color:var(--brand-500);
  font-size:12px;
  font-weight:500;
  letter-spacing:.3px;
}
.case-body{padding:24px}
.case-body h3{
  font-size:19px;
  line-height:1.5;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.case-body p{
  margin-top:12px;
  font-size:14.5px;
  line-height:1.8;
  color:var(--text-300);
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.case-metrics{
  display:flex;
  gap:0;
  margin:20px 0 18px;
  padding:16px 0;
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.case-metrics div{flex:1;min-width:0}
.case-metrics div + div{
  padding-left:18px;
  border-left:1px solid var(--line);
}
.case-metrics strong{
  display:block;
  font-size:26px;
  font-weight:700;
  line-height:1.15;
  color:var(--text-100);
  font-variant-numeric:tabular-nums;
  letter-spacing:-.5px;
}
.case-metrics strong em{
  font-style:normal;
  font-size:13px;
  margin-left:2px;
  color:var(--brand-500);
  vertical-align:super;
}
.case-metrics div:nth-child(2) strong{color:var(--accent-500)}
.case-metrics span{
  display:block;
  margin-top:6px;
  font-size:12px;
  color:var(--text-500);
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
}

/* ============ Compare ============ */
.compare-wrap{
  display:grid;
  grid-template-columns:minmax(0,.9fr) minmax(0,1.6fr);
  gap:0;
  border-radius:var(--radius-xl);
  border:1px solid var(--line);
  background:var(--glass);
  box-shadow:var(--shadow-card),inset 0 1px 0 rgba(255,255,255,.10);
  overflow:hidden;
}
.compare-intro{
  padding:40px 36px;
  border-right:1px solid transparent;
  background:
    radial-gradient(320px 240px at 0% 100%,rgba(43,227,196,.10),transparent 72%);
}
.compare-intro h2{
  font-size:26px;
  line-height:1.4;
  margin-bottom:14px;
}
.compare-intro p{font-size:14px;line-height:1.8;color:var(--text-500)}
.compare-list{
  padding:28px 32px 30px;
  border-left:1px solid var(--line);
  display:flex;
  flex-direction:column;
  gap:22px;
  justify-content:center;
}
.compare-row{
  display:grid;
  grid-template-columns:minmax(0,1fr) auto minmax(0,1fr);
  gap:14px;
  align-items:center;
}
.compare-side{
  display:flex;
  flex-direction:column;
  gap:4px;
  padding:12px 14px;
  border-radius:var(--radius-md);
  border:1px solid var(--line);
  background:rgba(255,255,255,.025);
}
.compare-side .compare-label{
  font-size:11.5px;
  letter-spacing:.6px;
  color:var(--text-500);
}
.compare-side strong{
  font-size:20px;
  font-weight:700;
  font-variant-numeric:tabular-nums;
  color:var(--text-500);
  letter-spacing:-.4px;
}
.compare-side.new{
  border-color:rgba(43,227,196,.34);
  background:rgba(43,227,196,.06);
}
.compare-side.new strong{
  color:var(--text-100);
  text-shadow:0 0 18px rgba(43,227,196,.45);
}
.compare-delta{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-width:76px;
  height:32px;
  padding:0 12px;
  border-radius:999px;
  border:1px solid rgba(255,176,32,.45);
  background:rgba(255,176,32,.12);
  color:var(--accent-500);
  font-size:13.5px;
  font-weight:700;
  font-variant-numeric:tabular-nums;
  white-space:nowrap;
}
.compare-bar{
  grid-column:1 / -1;
  height:4px;
  border-radius:999px;
  background:rgba(255,255,255,.08);
  overflow:hidden;
}
.compare-bar i{
  display:block;
  height:100%;
  border-radius:999px;
  background:linear-gradient(90deg,var(--brand-600),var(--brand-500));
  box-shadow:0 0 12px rgba(43,227,196,.45);
}
.compare-foot{
  margin-top:8px;
  font-size:12.5px;
  color:var(--text-500);
}

/* ============ Method list ============ */
.method-list{
  display:grid;
  gap:0;
  border-top:1px solid var(--line);
}
.method-item{
  display:grid;
  grid-template-columns:64px minmax(0,.72fr) minmax(0,1fr);
  gap:28px;
  align-items:start;
  padding:28px 0;
  border-bottom:1px solid var(--line);
  transition:background .22s var(--ease),padding-left .22s var(--ease);
}
.method-item:hover{background:rgba(255,255,255,.025);padding-left:12px}
.method-item .num{
  font-size:22px;
  font-weight:700;
  color:var(--text-500);
  font-variant-numeric:tabular-nums;
  letter-spacing:1px;
  transition:color .22s var(--ease);
}
.method-item:hover .num{color:var(--brand-500)}
.method-item h3{font-size:18px;line-height:1.55}
.method-item p{font-size:14.5px;line-height:1.85;color:var(--text-300)}

/* ============ FAQ ============ */
.faq-grid{
  display:grid;
  grid-template-columns:minmax(0,.72fr) minmax(0,1.35fr);
  gap:52px;
  align-items:start;
}
.faq-intro h2{font-size:28px;line-height:1.4;margin-bottom:14px}
.faq-intro p{font-size:14.5px;line-height:1.8;color:var(--text-500);margin-bottom:20px}
.faq-accordion .accordion-item{
  border:1px solid var(--line);
  border-radius:14px;
  background:var(--glass);
  margin-bottom:10px;
  overflow:hidden;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08);
}
.faq-accordion .accordion-item:last-child{margin-bottom:0}
.faq-accordion .accordion-button{
  position:relative;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  width:100%;
  padding:20px 24px 20px 28px;
  background:transparent;
  border:0;
  color:var(--text-100);
  font-size:17px;
  font-weight:600;
  line-height:1.6;
  text-align:left;
  box-shadow:none;
  transition:background .22s var(--ease);
}
.faq-accordion .accordion-button::before{
  content:"";
  position:absolute;
  left:0;top:12px;bottom:12px;
  width:4px;
  border-radius:0 4px 4px 0;
  background:var(--brand-500);
  opacity:0;
  transition:opacity .22s var(--ease);
}
.faq-accordion .accordion-button:not(.collapsed){background:rgba(43,227,196,.06)}
.faq-accordion .accordion-button:not(.collapsed)::before{opacity:1}
.faq-accordion .accordion-button::after{
  content:"";
  flex-shrink:0;
  width:12px;height:12px;
  margin-left:4px;
  border-right:2px solid var(--text-500);
  border-bottom:2px solid var(--text-500);
  transform:rotate(45deg);
  transition:transform .22s var(--ease),border-color .22s var(--ease);
  background-image:none;
}
.faq-accordion .accordion-button:not(.collapsed)::after{
  transform:rotate(-135deg);
  border-color:var(--brand-500);
}
.faq-accordion .accordion-button:focus-visible{outline:2px solid var(--brand-500);outline-offset:-3px;box-shadow:none}
.faq-accordion .accordion-body{
  padding:0 28px 22px;
  font-size:15px;
  line-height:1.85;
  color:var(--text-300);
}

/* ============ CTA ============ */
.cta-panel{
  position:relative;
  display:grid;
  grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);
  gap:48px;
  padding:48px;
  border-radius:var(--radius-xl);
  border:1px solid var(--line);
  background:
    radial-gradient(420px 300px at 92% 108%,rgba(43,227,196,.14),transparent 70%),
    var(--glass);
  box-shadow:var(--shadow-card),inset 0 1px 0 rgba(255,255,255,.12);
  overflow:hidden;
}
.cta-panel h2{font-size:28px;line-height:1.4;margin-bottom:18px}
.cta-points{display:flex;flex-direction:column;gap:12px;margin-bottom:26px}
.cta-points li{
  display:flex;
  align-items:flex-start;
  gap:10px;
  font-size:14.5px;
  line-height:1.7;
  color:var(--text-300);
}
.cta-points svg{flex-shrink:0;margin-top:3px;color:var(--brand-500)}
.cta-contact{
  padding-top:20px;
  border-top:1px solid var(--line);
  font-size:14px;
  line-height:1.9;
  color:var(--text-500);
}
.cta-contact strong{color:var(--text-100);font-variant-numeric:tabular-nums}
.form-grid{display:grid;gap:16px}
.field label{
  display:block;
  margin-bottom:8px;
  font-size:13px;
  font-weight:500;
  color:var(--text-300);
  letter-spacing:.2px;
}
.field .req{color:var(--accent-500);margin-left:3px}
.field input,
.field select,
.field textarea{
  width:100%;
  height:48px;
  padding:0 16px;
  border-radius:var(--radius-md);
  border:1px solid var(--line);
  background:rgba(255,255,255,.04);
  color:var(--text-100);
  font-size:14.5px;
  font-family:inherit;
  transition:border-color .22s var(--ease),box-shadow .22s var(--ease),background .22s var(--ease);
}
.field textarea{height:96px;padding:12px 16px;line-height:1.7;resize:vertical}
.field input::placeholder,
.field textarea::placeholder{color:var(--text-500)}
.field input:focus,
.field select:focus,
.field textarea:focus{
  outline:none;
  border-color:var(--brand-500);
  background:rgba(255,255,255,.06);
  box-shadow:0 0 0 3px rgba(43,227,196,.16);
}
.field select{appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--text-500) 50%),linear-gradient(135deg,var(--text-500) 50%,transparent 50%);background-position:calc(100% - 20px) 21px,calc(100% - 14px) 21px;background-size:6px 6px,6px 6px;background-repeat:no-repeat;cursor:pointer}
.field select option{background:var(--ink-800);color:var(--text-100)}
.form-hint{font-size:12.5px;color:var(--text-500);line-height:1.7}
.form-grid .btn{width:100%;height:50px}

/* ============ Footer ============ */
.site-footer{
  background:var(--ink-900);
  border-top:1px solid var(--line);
  padding:64px 0 0;
  margin-top:0;
}
.footer-grid{
  display:grid;
  grid-template-columns:minmax(0,1.5fr) minmax(0,.8fr) minmax(0,.9fr) minmax(0,.85fr);
  gap:44px;
  padding-bottom:48px;
}
.footer-brand .brand{margin-bottom:18px}
.footer-brand p{
  font-size:14px;
  line-height:1.85;
  color:var(--text-500);
  max-width:30em;
}
.footer-contact{
  margin-top:18px;
  font-size:13.5px;
  line-height:2;
  color:var(--text-500);
}
.footer-contact strong{color:var(--text-100);font-variant-numeric:tabular-nums}
.footer-col h4{
  font-size:14px;
  font-weight:600;
  letter-spacing:.6px;
  color:var(--text-100);
  margin-bottom:18px;
}
.footer-col ul li{margin-bottom:11px}
.footer-col ul li a{
  font-size:14px;
  color:var(--text-500);
  transition:color .22s var(--ease),transform .22s var(--ease);
  display:inline-block;
}
.footer-col ul li a:hover{color:var(--brand-500);transform:translateX(3px)}
.qr-box{
  width:108px;height:108px;
  border-radius:12px;
  border:1px dashed var(--line-strong);
  background:rgba(255,255,255,.03);
  display:grid;
  place-items:center;
  text-align:center;
  font-size:12px;
  line-height:1.6;
  color:var(--text-500);
}
.footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  flex-wrap:wrap;
  padding:22px 0;
  border-top:1px solid var(--line);
  font-size:13px;
  color:var(--text-500);
}
.footer-links{display:flex;flex-wrap:wrap;gap:20px}
.footer-links a{font-size:13px;color:var(--text-500)}
.footer-links a:hover{color:var(--brand-500)}

/* ============ Responsive ============ */
@media (max-width:1199.98px){
  .page-hero h1{font-size:38px}
  .footer-grid{grid-template-columns:minmax(0,1.4fr) minmax(0,.9fr) minmax(0,.9fr);gap:36px}
  .footer-col:last-child{grid-column:1 / -1;display:flex;align-items:center;gap:24px}
  .footer-col:last-child h4{margin-bottom:0;width:100%}
  .footer-col:last-child p{margin-top:0 !important}
}
@media (max-width:991.98px){
  .header-search{display:none}
  .nav-toggle{display:flex}
  .header-actions .btn{display:none}
  .page-hero{padding:40px 0 48px}
  .page-hero-grid{grid-template-columns:1fr;gap:28px;align-items:start}
  .page-hero h1{font-size:32px}
  .hero-side{max-width:520px}
  .section{padding:64px 0}
  .section-sm{padding:52px 0}
  .section-head{flex-direction:column;align-items:flex-start;gap:14px}
  .section-head .head-note{text-align:left;max-width:none}
  .case-grid{grid-template-columns:1fr;gap:22px}
  .case-col.offset{padding-top:0}
  .compare-wrap{grid-template-columns:1fr}
  .compare-intro{padding:32px 28px 8px;border-right:0}
  .compare-list{border-left:0;border-top:1px solid var(--line);padding:26px 28px 30px}
  .method-item{grid-template-columns:48px 1fr;gap:16px}
  .method-item p{grid-column:1 / -1;padding-left:0}
  .faq-grid{grid-template-columns:1fr;gap:30px}
  .cta-panel{grid-template-columns:1fr;gap:32px;padding:34px 28px}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px}
  .footer-col:last-child{grid-column:auto;display:block}
  .footer-col:last-child h4{margin-bottom:18px}
}
@media (max-width:767.98px){
  .header-main-inner{height:60px;gap:12px}
  .brand-text{font-size:17px}
  .brand-sub{display:none}
  .channel-scroll{height:48px}
  .page-hero h1{font-size:28px;line-height:1.3}
  .hero-lead{font-size:15px}
  .section-head h2{font-size:23px}
  .compare-side strong{font-size:17px}
  .compare-row{grid-template-columns:1fr auto 1fr;gap:8px}
  .case-body{padding:20px}
  .case-metrics strong{font-size:23px}
  .faq-accordion .accordion-button{font-size:16px;padding:18px 20px 18px 24px}
  .faq-accordion .accordion-body{padding:0 24px 20px}
  .footer-grid{grid-template-columns:1fr;gap:30px;padding-bottom:36px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:12px}
}
@media (max-width:575.98px){
  .btn{height:46px;padding:0 20px}
  .hero-side{padding:20px}
  .compare-delta{min-width:64px;height:28px;font-size:12px;padding:0 10px}
  .compare-side{padding:10px 12px}
  .compare-list{padding:22px 18px 24px}
  .compare-intro{padding:26px 18px 6px}
  .cta-panel{padding:26px 20px}
  .cta-panel h2{font-size:23px}
  .footer-links{gap:14px}
}
@media (max-width:420px){
  .brand-text{font-size:16px;letter-spacing:.6px}
  .page-hero h1{font-size:25px}
  .case-metrics{flex-direction:column;gap:14px}
  .case-metrics div + div{padding-left:0;border-left:0;padding-top:14px;border-top:1px solid var(--line)}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:.001ms !important;
    transition-duration:.001ms !important;
  }
  html{scroll-behavior:auto}
}
section[id]{scroll-margin-top:132px}

/* roulang page: category2 */
:root{
  --ink-900:#05080F;
  --ink-800:#0A101C;
  --ink-700:#121A2A;
  --brand-500:#2BE3C4;
  --brand-600:#12B9A2;
  --brand-glow:rgba(43,227,196,.35);
  --accent-500:#FFB020;
  --accent-600:#E08A00;
  --violet-500:#7C8CFF;
  --text-100:#EAF1F9;
  --text-300:#A9B8CC;
  --text-500:#6F8098;
  --line:rgba(140,180,220,.14);
  --line-strong:rgba(140,180,220,.28);
  --ok:#3DDC84;
  --warn:#FFB020;
  --error:#FF6B6B;
  --radius-lg:18px;
  --radius-md:14px;
  --radius-sm:10px;
  --shadow-card:0 20px 40px -24px rgba(0,0,0,.7);
  --font-stack:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Noto Sans SC",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
}

*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-stack);
  font-size:16px;
  line-height:1.75;
  color:var(--text-300);
  background:var(--ink-900);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color .22s ease-out,border-color .22s ease-out;}
a:hover{color:var(--brand-500);}
h1,h2,h3,h4{
  color:var(--text-100);
  margin:0;
  font-weight:700;
  letter-spacing:-.2px;
}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--brand-500);outline-offset:3px;}

.container{
  width:100%;
  max-width:1240px;
  margin:0 auto;
  padding-left:32px;
  padding-right:32px;
}

/* ============ 玻璃卡 ============ */
.glass{
  position:relative;
  background-color:#0d1523;
  background-image:linear-gradient(160deg,rgba(255,255,255,.06),rgba(255,255,255,.015));
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-card),inset 0 1px 0 rgba(255,255,255,.12);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  transition:transform .24s ease-out,border-color .24s ease-out,box-shadow .24s ease-out;
}
.glass:hover{
  transform:translateY(-4px);
  border-color:var(--line-strong);
}

/* ============ 按钮 ============ */
.ob-btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 24px;
  border-radius:12px;
  font-size:15px;
  font-weight:600;
  line-height:1;
  border:1px solid transparent;
  cursor:pointer;
  white-space:nowrap;
  transition:transform .22s ease-out,box-shadow .22s ease-out,border-color .22s ease-out,color .22s ease-out,filter .22s ease-out;
}
.ob-btn--primary{
  background:var(--brand-500);
  color:#04211D;
  box-shadow:0 0 0 1px rgba(43,227,196,.5),0 10px 28px -8px var(--brand-glow);
}
.ob-btn--primary:hover{
  color:#04211D;
  filter:brightness(1.06);
  transform:translateY(-2px);
  box-shadow:0 0 0 1px rgba(43,227,196,.7),0 14px 36px -8px var(--brand-glow);
}
.ob-btn--primary:active{transform:translateY(0);}
.ob-btn--ghost{
  background:transparent;
  border-color:var(--line-strong);
  color:var(--text-100);
}
.ob-btn--ghost:hover{
  border-color:var(--brand-500);
  color:var(--brand-500);
  transform:translateY(-2px);
}
.ob-btn--amber{
  background:linear-gradient(180deg,#FFC24D,var(--accent-500));
  color:#2A1A00;
  box-shadow:0 10px 26px -10px rgba(255,176,32,.6);
}
.ob-btn--amber:hover{
  color:#2A1A00;
  filter:brightness(1.05);
  transform:translateY(-2px);
}
.ob-btn--block{width:100%;}

/* ============ 徽章 / 标签 ============ */
.ob-badge{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:5px 12px;
  font-size:12px;
  font-weight:500;
  letter-spacing:.3px;
  color:var(--brand-500);
  background:rgba(43,227,196,.1);
  border:1px solid rgba(43,227,196,.32);
  border-radius:6px;
  line-height:1.4;
}
.ob-badge--amber{
  color:var(--accent-500);
  background:rgba(255,176,32,.1);
  border-color:rgba(255,176,32,.35);
}
.ob-badge--muted{
  color:var(--text-500);
  background:rgba(255,255,255,.04);
  border-color:var(--line);
}
.dot-live{
  width:6px;height:6px;border-radius:50%;
  background:var(--brand-500);
  box-shadow:0 0 0 3px rgba(43,227,196,.18);
}

/* ============ 顶部 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:1040;
  background:rgba(5,8,15,.86);
  -webkit-backdrop-filter:blur(16px);
  backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
}
.brand-row{
  display:flex;
  align-items:center;
  gap:24px;
  height:72px;
  transition:height .24s ease-out;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
}
.brand-mark{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:36px;height:36px;
  border-radius:10px;
  color:#04211D;
  background:linear-gradient(150deg,var(--brand-500),var(--brand-600));
  box-shadow:0 6px 18px -8px var(--brand-glow);
}
.brand-text{
  font-size:19px;
  font-weight:700;
  letter-spacing:1px;
  color:var(--text-100);
}
.brand:hover .brand-text{color:var(--text-100);}
.brand-sub{
  font-size:12px;
  color:var(--text-500);
  letter-spacing:.5px;
  padding-left:12px;
  margin-left:2px;
  border-left:1px solid var(--line-strong);
  line-height:1.2;
}
.header-search{
  flex:1 1 auto;
  max-width:320px;
  position:relative;
  display:flex;
  align-items:center;
}
.header-search svg{
  position:absolute;
  left:14px;
  color:var(--text-500);
  pointer-events:none;
}
.header-search input{
  width:100%;
  height:42px;
  padding:0 16px 0 40px;
  font-size:14px;
  color:var(--text-100);
  background:rgba(255,255,255,.04);
  border:1px solid var(--line);
  border-radius:999px;
  transition:border-color .22s ease-out,box-shadow .22s ease-out;
}
.header-search input::placeholder{color:var(--text-500);}
.header-search input:focus{
  outline:none;
  border-color:var(--brand-500);
  box-shadow:0 0 0 3px rgba(43,227,196,.14);
}
.header-actions{
  margin-left:auto;
  display:flex;
  align-items:center;
  gap:12px;
}
.header-actions .ob-btn{height:42px;padding:0 20px;font-size:14px;}
.nav-toggle{
  display:none;
  width:42px;height:42px;
  align-items:center;
  justify-content:center;
  color:var(--text-100);
  background:rgba(255,255,255,.04);
  border:1px solid var(--line);
  border-radius:10px;
  cursor:pointer;
}
.channel-bar{border-top:1px solid rgba(140,180,220,.08);}
.channel-scroll{
  display:flex;
  align-items:center;
  gap:8px;
  height:48px;
  overflow-x:auto;
  scrollbar-width:none;
  -ms-overflow-style:none;
}
.channel-scroll::-webkit-scrollbar{display:none;}
.pill{
  display:inline-flex;
  align-items:center;
  height:32px;
  padding:0 16px;
  font-size:14px;
  color:var(--text-300);
  border:1px solid transparent;
  border-radius:999px;
  white-space:nowrap;
  transition:color .2s ease-out,background .2s ease-out,border-color .2s ease-out;
}
.pill:hover{
  color:var(--text-100);
  background:rgba(255,255,255,.08);
}
.pill.active{
  color:var(--text-100);
  background:rgba(43,227,196,.12);
  border-color:var(--brand-500);
}

/* ============ 抽屉 ============ */
.drawer{
  position:fixed;
  inset:0;
  z-index:1080;
  display:none;
}
.drawer.open{display:block;}
.drawer-mask{
  position:absolute;
  inset:0;
  background:rgba(2,4,9,.72);
  -webkit-backdrop-filter:blur(4px);
  backdrop-filter:blur(4px);
}
.drawer-panel{
  position:absolute;
  top:0;right:0;
  width:min(320px,86vw);
  height:100%;
  padding:24px;
  background:var(--ink-800);
  border-left:1px solid var(--line);
  display:flex;
  flex-direction:column;
  gap:20px;
  animation:slideIn .24s ease-out;
}
@keyframes slideIn{from{transform:translateX(24px);opacity:.4}to{transform:translateX(0);opacity:1}}
.drawer-close{
  align-self:flex-end;
  width:36px;height:36px;
  display:flex;align-items:center;justify-content:center;
  color:var(--text-300);
  background:rgba(255,255,255,.05);
  border:1px solid var(--line);
  border-radius:10px;
  cursor:pointer;
  font-size:20px;
  line-height:1;
}
.drawer-nav{display:flex;flex-direction:column;gap:6px;}
.drawer-nav a{
  padding:12px 14px;
  font-size:15px;
  color:var(--text-300);
  border-radius:10px;
  border:1px solid transparent;
}
.drawer-nav a:hover{background:rgba(255,255,255,.05);color:var(--text-100);}
.drawer-nav a.active{
  color:var(--text-100);
  background:rgba(43,227,196,.12);
  border-color:rgba(43,227,196,.4);
}

/* ============ 面包屑 ============ */
.crumb-bar{
  padding:20px 0 4px;
  font-size:13px;
  color:var(--text-500);
}
.crumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
}
.crumb a{color:var(--text-500);}
.crumb a:hover{color:var(--brand-500);}
.crumb .sep{color:rgba(140,180,220,.4);}
.crumb .current{color:var(--text-300);}

/* ============ Hero ============ */
.page-hero{
  position:relative;
  overflow:hidden;
  padding:56px 0 72px;
  border-bottom:1px solid var(--line);
  scroll-margin-top:130px;
}
.page-hero::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:url('/assets/images/backpic/back-1.png');
  background-size:cover;
  background-position:center;
  opacity:.22;
}
.page-hero::after{
  content:"";
  position:absolute;
  inset:0;
  background:
    radial-gradient(600px 320px at 12% 8%,rgba(43,227,196,.10),transparent 70%),
    radial-gradient(520px 300px at 88% 82%,rgba(124,140,255,.08),transparent 72%),
    linear-gradient(180deg,rgba(5,8,15,.55),var(--ink-900) 94%);
}
.hero-inner{
  position:relative;
  z-index:1;
  display:grid;
  grid-template-columns:7fr 5fr;
  gap:48px;
  align-items:start;
}
.hero-copy h1{
  font-size:36px;
  line-height:1.3;
  margin:18px 0 16px;
  letter-spacing:-.5px;
}
.hero-copy .lead{
  font-size:17px;
  line-height:1.85;
  color:var(--text-300);
  max-width:560px;
}
.hero-actions{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  margin-top:28px;
}
.hero-tags{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:12px;
  margin-top:26px;
  font-size:13px;
  color:var(--text-500);
}
.hero-tags span{display:inline-flex;align-items:center;gap:12px;}
.hero-tags .bar{
  width:1px;height:12px;
  background:var(--line-strong);
  display:inline-block;
}
.hero-panel{
  padding:28px;
}
.hero-panel h2{
  font-size:14px;
  font-weight:600;
  letter-spacing:.4px;
  color:var(--text-500);
  margin-bottom:20px;
}
.mini-metric{
  padding:16px 0;
  border-bottom:1px dashed rgba(140,180,220,.16);
}
.mini-metric:last-child{border-bottom:0;padding-bottom:0;}
.mini-metric .num{
  font-size:34px;
  font-weight:700;
  line-height:1.1;
  color:var(--text-100);
  font-variant-numeric:tabular-nums;
  letter-spacing:-.5px;
}
.mini-metric .num small{
  font-size:13px;
  font-weight:500;
  color:var(--text-500);
  margin-left:6px;
  letter-spacing:0;
}
.mini-metric .desc{
  font-size:13px;
  color:var(--text-500);
  margin-top:6px;
}
.mini-bar{
  height:3px;
  border-radius:999px;
  background:rgba(255,255,255,.08);
  margin-top:12px;
  overflow:hidden;
}
.mini-bar i{
  display:block;
  height:100%;
  border-radius:999px;
  background:linear-gradient(90deg,var(--brand-600),var(--brand-500));
}
.mini-bar i.amber{background:linear-gradient(90deg,var(--accent-600),var(--accent-500));}

/* ============ 板块通用 ============ */
.section{
  padding:96px 0;
  scroll-margin-top:130px;
}
.section--tight{padding:72px 0;}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:32px;
  margin-bottom:32px;
}
.section-head h2{
  font-size:28px;
  line-height:1.35;
}
.section-head .sub{
  font-size:14px;
  color:var(--text-500);
  max-width:340px;
  text-align:right;
  line-height:1.7;
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:12px;
  letter-spacing:.6px;
  color:var(--brand-500);
  margin-bottom:12px;
}
.eyebrow::before{
  content:"";
  width:20px;height:2px;
  background:var(--brand-500);
  border-radius:2px;
}
.link-more{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14px;
  font-weight:500;
  color:var(--brand-500);
}
.link-more .arrow{transition:transform .22s ease-out;}
.link-more:hover .arrow{transform:translateX(4px);}

/* ============ 四类情报 ============ */
.intel-grid{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:20px;
}
.intel-card{
  padding:28px;
  display:flex;
  flex-direction:column;
  gap:14px;
}
.intel-top{
  display:flex;
  align-items:center;
  justify-content:space-between;
}
.card-no{
  font-size:12px;
  font-variant-numeric:tabular-nums;
  letter-spacing:.5px;
  color:var(--text-500);
  padding:3px 10px;
  border-radius:6px;
  background:rgba(255,255,255,.05);
  border:1px solid var(--line);
}
.intel-icon{
  width:40px;height:40px;
  display:flex;align-items:center;justify-content:center;
  border-radius:10px;
  color:var(--brand-500);
  background:rgba(43,227,196,.1);
  border:1px solid rgba(43,227,196,.25);
}
.intel-card h3{font-size:19px;line-height:1.5;}
.intel-card p{font-size:14px;line-height:1.8;color:var(--text-300);}

/* ============ 监测领域 ============ */
.domain-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:20px;
}
.domain-card{
  overflow:hidden;
  display:flex;
  flex-direction:column;
}
.domain-figure{
  position:relative;
  aspect-ratio:16/10;
  overflow:hidden;
  background:var(--ink-700);
}
.domain-figure img{
  width:100%;height:100%;
  object-fit:cover;
  transition:transform .26s ease-out;
}
.domain-card:hover .domain-figure img{transform:scale(1.03);}
.domain-figure::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,rgba(5,8,15,0) 40%,rgba(5,8,15,.78));
}
.domain-body{
  padding:20px 22px 24px;
  display:flex;
  flex-direction:column;
  gap:10px;
}
.domain-body h3{font-size:18px;line-height:1.5;}
.domain-body p{font-size:14px;line-height:1.75;color:var(--text-300);}
.domain-meta{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:12px;
  color:var(--text-500);
  margin-top:2px;
}
.domain-meta .tag{
  padding:2px 8px;
  border-radius:6px;
  border:1px solid var(--line);
  background:rgba(255,255,255,.03);
}

/* ============ 节奏时间轴 ============ */
.rhythm{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:20px;
  position:relative;
}
.rhythm::before{
  content:"";
  position:absolute;
  top:26px;
  left:8%;
  right:8%;
  height:1px;
  background:linear-gradient(90deg,rgba(43,227,196,0),rgba(43,227,196,.45),rgba(43,227,196,0));
}
.rhythm-item{
  position:relative;
  padding:0 4px;
}
.rhythm-dot{
  width:52px;height:52px;
  display:flex;align-items:center;justify-content:center;
  border-radius:14px;
  font-size:15px;
  font-weight:700;
  font-variant-numeric:tabular-nums;
  color:var(--brand-500);
  background:rgba(43,227,196,.1);
  border:1px solid rgba(43,227,196,.35);
  margin-bottom:18px;
  position:relative;
  z-index:1;
}
.rhythm-item h3{font-size:17px;margin-bottom:8px;}
.rhythm-item p{font-size:14px;line-height:1.8;color:var(--text-300);}
.rhythm-item .when{
  font-size:12px;
  color:var(--text-500);
  margin-top:10px;
  display:block;
}

/* ============ 内容规范 ============ */
.standard-wrap{
  display:grid;
  grid-template-columns:6fr 5fr;
  gap:40px;
  align-items:center;
}
.standard-copy h2{font-size:28px;line-height:1.35;margin-bottom:16px;}
.standard-copy p{font-size:16px;line-height:1.85;color:var(--text-300);margin-bottom:24px;}
.field-list{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:14px;
}
.field-item{
  display:flex;
  gap:12px;
  padding:16px 18px;
  border-radius:var(--radius-md);
  background:rgba(255,255,255,.03);
  border:1px solid var(--line);
}
.field-item .mark{
  flex:0 0 auto;
  width:22px;height:22px;
  display:flex;align-items:center;justify-content:center;
  border-radius:6px;
  color:var(--brand-500);
  background:rgba(43,227,196,.12);
  font-size:12px;
  font-weight:700;
  margin-top:2px;
}
.field-item strong{
  display:block;
  font-size:15px;
  color:var(--text-100);
  margin-bottom:4px;
}
.field-item span{font-size:13px;color:var(--text-500);line-height:1.7;}
.standard-figure{
  border-radius:var(--radius-lg);
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--shadow-card);
  aspect-ratio:4/3;
  background:var(--ink-700);
}
.standard-figure img{width:100%;height:100%;object-fit:cover;}

/* ============ 数据条 ============ */
.stat-strip{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:20px;
}
.stat-card{
  padding:24px;
}
.stat-card .num{
  font-size:44px;
  font-weight:700;
  line-height:1;
  color:var(--text-100);
  font-variant-numeric:tabular-nums;
  letter-spacing:-1px;
}
.stat-card .num small{
  font-size:14px;
  font-weight:500;
  color:var(--text-500);
  margin-left:6px;
}
.stat-card .label{
  font-size:14px;
  color:var(--text-100);
  margin-top:12px;
  font-weight:500;
}
.stat-card .note{
  font-size:12px;
  color:var(--text-500);
  margin-top:6px;
}
.stat-card .mini-bar{margin-top:16px;}

/* ============ FAQ ============ */
.faq-wrap{
  display:grid;
  grid-template-columns:5fr 7fr;
  gap:48px;
  align-items:start;
}
.faq-intro h2{font-size:28px;line-height:1.35;margin-bottom:16px;}
.faq-intro p{font-size:15px;line-height:1.85;color:var(--text-300);margin-bottom:22px;}
.acc .accordion-item{
  background:transparent;
  border:0;
  margin-bottom:10px;
  border-radius:var(--radius-md);
}
.acc .accordion-button{
  width:100%;
  padding:18px 20px;
  font-size:17px;
  font-weight:600;
  color:var(--text-100);
  background-color:#0d1523;
  background-image:linear-gradient(160deg,rgba(255,255,255,.06),rgba(255,255,255,.015));
  border:1px solid var(--line);
  border-radius:var(--radius-md);
  box-shadow:none;
  transition:background .22s ease-out,border-color .22s ease-out,color .22s ease-out;
}
.acc .accordion-button:not(.collapsed){
  color:var(--text-100);
  background-color:#0f1a2b;
  background-image:linear-gradient(160deg,rgba(43,227,196,.12),rgba(43,227,196,.02));
  border-color:rgba(43,227,196,.42);
  box-shadow:inset 4px 0 0 var(--brand-500);
}
.acc .accordion-button:hover{border-color:var(--line-strong);}
.acc .accordion-button:focus{
  box-shadow:inset 0 0 0 1px var(--brand-500);
  border-color:var(--brand-500);
  outline:none;
}
.acc .accordion-button::after{
  background-image:none;
  content:"+";
  width:24px;height:24px;
  display:flex;align-items:center;justify-content:center;
  font-size:20px;
  font-weight:400;
  color:var(--brand-500);
  transform:none;
  margin-left:16px;
  flex:0 0 auto;
}
.acc .accordion-button:not(.collapsed)::after{
  content:"−";
  transform:none;
}
.acc .accordion-body{
  padding:16px 20px 20px 24px;
  font-size:15px;
  line-height:1.85;
  color:var(--text-300);
}

/* ============ CTA 表单 ============ */
.cta-card{
  position:relative;
  overflow:hidden;
  padding:44px;
  display:grid;
  grid-template-columns:6fr 5fr;
  gap:48px;
  background-color:#0d1523;
  background-image:linear-gradient(160deg,rgba(255,255,255,.07),rgba(255,255,255,.015));
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-card),inset 0 1px 0 rgba(255,255,255,.12);
}
.cta-card::after{
  content:"";
  position:absolute;
  right:-120px;
  bottom:-140px;
  width:420px;height:420px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(43,227,196,.18),transparent 68%);
  pointer-events:none;
}
.cta-copy{position:relative;z-index:1;}
.cta-copy h2{font-size:28px;line-height:1.35;margin-bottom:16px;}
.cta-copy p{font-size:15px;line-height:1.85;color:var(--text-300);margin-bottom:22px;}
.cta-points{display:flex;flex-direction:column;gap:12px;margin-bottom:26px;}
.cta-points li{
  display:flex;
  align-items:flex-start;
  gap:10px;
  font-size:15px;
  color:var(--text-100);
}
.cta-points .tick{
  flex:0 0 auto;
  width:20px;height:20px;
  display:flex;align-items:center;justify-content:center;
  border-radius:50%;
  color:var(--brand-500);
  background:rgba(43,227,196,.12);
  font-size:11px;
  margin-top:3px;
}
.cta-contact{
  font-size:14px;
  color:var(--text-500);
  line-height:1.9;
  padding-top:20px;
  border-top:1px dashed rgba(140,180,220,.18);
}
.cta-contact strong{color:var(--text-100);font-weight:600;}
.lead-form{position:relative;z-index:1;display:flex;flex-direction:column;gap:16px;}
.form-field{display:flex;flex-direction:column;gap:7px;}
.form-field label{
  font-size:13px;
  color:var(--text-300);
  letter-spacing:.2px;
}
.form-field input,
.form-field select,
.form-field textarea{
  width:100%;
  height:48px;
  padding:0 14px;
  font-size:15px;
  font-family:inherit;
  color:var(--text-100);
  background:rgba(255,255,255,.04);
  border:1px solid var(--line);
  border-radius:12px;
  transition:border-color .22s ease-out,box-shadow .22s ease-out,background .22s ease-out;
}
.form-field textarea{
  height:96px;
  padding:12px 14px;
  resize:vertical;
  line-height:1.7;
}
.form-field select{appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--text-500) 50%),linear-gradient(135deg,var(--text-500) 50%,transparent 50%);background-position:calc(100% - 20px) 21px,calc(100% - 14px) 21px;background-size:6px 6px,6px 6px;background-repeat:no-repeat;}
.form-field select option{background:var(--ink-800);color:var(--text-100);}
.form-field input::placeholder,
.form-field textarea::placeholder{color:var(--text-500);}
.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus{
  outline:none;
  border-color:var(--brand-500);
  background:rgba(255,255,255,.06);
  box-shadow:0 0 0 3px rgba(43,227,196,.14);
}
.form-note{font-size:12px;color:var(--text-500);line-height:1.7;}
.form-alert{
  display:none;
  padding:12px 14px;
  font-size:14px;
  color:var(--brand-500);
  background:rgba(43,227,196,.1);
  border:1px solid rgba(43,227,196,.35);
  border-radius:10px;
}
.form-alert.show{display:block;}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--ink-900);
  border-top:1px solid var(--line);
  padding:64px 0 0;
  margin-top:0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1fr;
  gap:40px;
  padding-bottom:48px;
}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand p{
  font-size:14px;
  line-height:1.85;
  color:var(--text-500);
  max-width:320px;
}
.footer-contact{
  margin-top:20px;
  font-size:13px;
  line-height:1.95;
  color:var(--text-500);
}
.footer-contact strong{
  color:var(--text-100);
  font-variant-numeric:tabular-nums;
}
.footer-col h4{
  font-size:14px;
  font-weight:600;
  color:var(--text-100);
  margin-bottom:18px;
  letter-spacing:.4px;
}
.footer-col ul{display:flex;flex-direction:column;gap:11px;}
.footer-col ul a{
  font-size:14px;
  color:var(--text-500);
}
.footer-col ul a:hover{color:var(--brand-500);}
.qr-box{
  width:96px;height:96px;
  display:flex;
  align-items:center;
  justify-content:center;
  text-align:center;
  font-size:12px;
  line-height:1.6;
  color:var(--text-500);
  background:rgba(255,255,255,.04);
  border:1px dashed var(--line-strong);
  border-radius:12px;
}
.footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  flex-wrap:wrap;
  gap:16px;
  padding:22px 0;
  border-top:1px solid var(--line);
  font-size:13px;
  color:var(--text-500);
}
.footer-links{
  display:flex;
  flex-wrap:wrap;
  gap:18px;
}
.footer-links a{color:var(--text-500);}
.footer-links a:hover{color:var(--brand-500);}

/* ============ 响应式 ============ */
@media (max-width:1200px){
  .container{padding-left:24px;padding-right:24px;}
  .hero-inner{grid-template-columns:1fr;gap:32px;}
  .hero-copy h1{font-size:32px;}
  .domain-grid{grid-template-columns:repeat(2,1fr);}
  .stat-strip{grid-template-columns:repeat(2,1fr);}
  .rhythm{grid-template-columns:repeat(2,1fr);row-gap:32px;}
  .rhythm::before{display:none;}
  .standard-wrap{grid-template-columns:1fr;gap:32px;}
  .faq-wrap{grid-template-columns:1fr;gap:32px;}
  .cta-card{grid-template-columns:1fr;padding:36px;gap:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:992px){
  .header-search{max-width:200px;}
  .brand-sub{display:none;}
  .section{padding:72px 0;}
  .section--tight{padding:56px 0;}
  .page-hero{padding:44px 0 56px;}
}
@media (max-width:768px){
  .container{padding-left:16px;padding-right:16px;}
  .brand-row{height:60px;gap:12px;}
  .header-search{display:none;}
  .header-actions .ob-btn{display:none;}
  .nav-toggle{display:inline-flex;}
  .brand-text{font-size:17px;}
  .channel-scroll{height:46px;}
  .section{padding:56px 0;}
  .section-head{flex-direction:column;align-items:flex-start;gap:14px;}
  .section-head .sub{text-align:left;max-width:100%;}
  .hero-copy h1{font-size:28px;line-height:1.32;}
  .hero-copy .lead{font-size:15px;}
  .intel-grid{grid-template-columns:1fr;}
  .domain-grid{grid-template-columns:1fr;}
  .field-list{grid-template-columns:1fr;}
  .stat-strip{grid-template-columns:repeat(2,1fr);}
  .rhythm{grid-template-columns:1fr;}
  .cta-card{padding:24px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .ob-btn{height:46px;width:100%;}
  .hero-actions .ob-btn,
  .cta-copy .ob-btn{width:100%;}
}
@media (max-width:420px){
  .hero-copy h1{font-size:24px;}
  .stat-card .num{font-size:36px;}
  .mini-metric .num{font-size:28px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;}
  html{scroll-behavior:auto;}
}