/* roulang page: index */
:root{
  --bg-deep:#05070F;
  --bg-panel:#0A1020;
  --bg-elev:#111830;
  --primary:#25D0C0;
  --secondary:#8A6BFF;
  --accent:#FFB648;
  --text:#EDF2FF;
  --text-2:#A8B4D4;
  --text-3:#6B7899;
  --line:rgba(140,170,255,.14);
  --line-strong:rgba(140,170,255,.30);
  --r-card:18px;
  --r-img:14px;
  --r-btn:12px;
  --r-pill:999px;
  --shadow-card:inset 0 1px 0 rgba(255,255,255,.06), 0 18px 40px -20px rgba(0,0,0,.8);
  --shadow-glow:0 0 0 1px rgba(37,208,192,.45), 0 10px 26px -8px rgba(37,208,192,.45);
  --ease:cubic-bezier(.2,.7,.3,1);
  --container:1200px;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"Noto Sans SC","HarmonyOS Sans SC","PingFang SC","Microsoft YaHei",Inter,system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background-color:var(--bg-deep);
  background-image:
    radial-gradient(1200px 620px at 12% -8%, rgba(138,107,255,.20), transparent 68%),
    radial-gradient(900px 520px at 88% 2%, rgba(37,208,192,.13), transparent 68%);
  background-repeat:no-repeat;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:0;
  pointer-events:none;
  opacity:.55;
  background-image:
    radial-gradient(1.3px 1.3px at 18% 22%, rgba(255,255,255,.65), transparent 60%),
    radial-gradient(1.1px 1.1px at 62% 12%, rgba(255,255,255,.45), transparent 60%),
    radial-gradient(1.5px 1.5px at 82% 42%, rgba(190,215,255,.55), transparent 60%),
    radial-gradient(1px 1px at 34% 68%, rgba(255,255,255,.42), transparent 60%),
    radial-gradient(1.2px 1.2px at 74% 78%, rgba(255,255,255,.38), transparent 60%),
    radial-gradient(1px 1px at 8% 84%, rgba(190,215,255,.40), transparent 60%);
  background-size:520px 520px, 680px 680px, 760px 760px, 600px 600px, 520px 520px, 700px 700px;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button,input{font-family:inherit;font-size:inherit;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:6px;}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px;position:relative;z-index:1;}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:120;background:rgba(5,7,15,.72);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid var(--line);transition:background .3s var(--ease);}
.header-top{display:flex;align-items:center;gap:22px;height:72px;transition:height .3s var(--ease);}
.site-header.compact .header-top{height:56px;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{width:36px;height:36px;flex:0 0 auto;border-radius:11px;background:linear-gradient(140deg,rgba(37,208,192,.22),rgba(138,107,255,.28));border:1px solid var(--line-strong);display:flex;align-items:center;justify-content:center;color:var(--primary);}
.brand-name{font-size:17px;font-weight:700;letter-spacing:0;white-space:nowrap;}
.brand-name em{font-style:normal;color:var(--primary);}

.search{position:relative;flex:1 1 auto;max-width:400px;min-width:0;}
.search svg{position:absolute;left:14px;top:50%;transform:translateY(-50%);color:var(--text-3);pointer-events:none;}
.search input{width:100%;height:42px;padding:0 16px 0 42px;border-radius:var(--r-btn);border:1px solid var(--line);background:rgba(17,24,48,.72);color:var(--text);font-size:14px;transition:border-color .2s var(--ease),box-shadow .2s var(--ease);}
.search input::placeholder{color:var(--text-3);}
.search input:focus{outline:none;border-color:rgba(37,208,192,.65);box-shadow:0 0 0 3px rgba(37,208,192,.14),0 0 18px -4px rgba(37,208,192,.5);}

.header-actions{display:flex;align-items:center;gap:12px;margin-left:auto;flex:0 0 auto;}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:0 22px;border-radius:var(--r-btn);font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease);}
.btn-primary{background:linear-gradient(120deg,var(--primary),var(--secondary));color:#05131A;box-shadow:var(--shadow-glow);}
.btn-primary:hover{transform:translateY(-1px);box-shadow:0 0 0 1px rgba(37,208,192,.6),0 16px 34px -10px rgba(37,208,192,.6);}
.btn-primary:active{transform:translateY(1px);}
.btn-ghost{background:rgba(17,24,48,.62);border-color:var(--line-strong);color:var(--text);}
.btn-ghost:hover{border-color:rgba(37,208,192,.55);color:#fff;background:rgba(37,208,192,.10);}
.btn:disabled{opacity:.45;cursor:not-allowed;box-shadow:none;transform:none;}
.btn-sm{min-height:40px;padding:0 18px;font-size:14px;}

.burger{display:none;width:44px;height:44px;border-radius:var(--r-btn);border:1px solid var(--line-strong);background:rgba(17,24,48,.72);color:var(--text);align-items:center;justify-content:center;cursor:pointer;}
.burger:hover{border-color:rgba(37,208,192,.55);color:var(--primary);}

.channel-bar{border-top:1px solid var(--line);background:rgba(10,16,32,.55);}
.channel-scroll{position:relative;}
.channel-scroll::before,.channel-scroll::after{content:"";position:absolute;top:0;bottom:0;width:36px;pointer-events:none;z-index:2;}
.channel-scroll::before{left:0;background:linear-gradient(90deg,rgba(5,7,15,.95),transparent);}
.channel-scroll::after{right:0;background:linear-gradient(270deg,rgba(5,7,15,.95),transparent);}
.channels{display:flex;align-items:center;gap:8px;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;padding:8px 0;}
.channels::-webkit-scrollbar{display:none;}
.channel{position:relative;flex:0 0 auto;padding:9px 18px;border-radius:var(--r-pill);font-size:14px;color:var(--text-2);border:1px solid transparent;white-space:nowrap;transition:color .2s var(--ease),background .2s var(--ease),border-color .2s var(--ease);}
.channel:hover{color:var(--text);background:rgba(140,170,255,.08);}
.channel.active{color:var(--text);font-weight:600;background:rgba(140,170,255,.10);border-color:var(--line);box-shadow:inset 0 1px 0 rgba(255,255,255,.06);}
.channel.active::after{content:"";position:absolute;left:18px;right:18px;bottom:3px;height:2px;border-radius:2px;background:linear-gradient(90deg,var(--primary),var(--secondary));}

.mobile-nav{display:none;border-top:1px solid var(--line);background:rgba(5,7,15,.97);padding:14px 0 18px;}
.mobile-nav.open{display:block;}
.mobile-nav .m-link{display:block;padding:13px 0;color:var(--text-2);border-bottom:1px solid var(--line);font-size:15px;}
.mobile-nav .m-link:last-child{border-bottom:none;}
.mobile-nav .m-link.active{color:var(--primary);font-weight:600;}
.mobile-search{margin:12px 0 4px;}

/* ---------- hero ---------- */
.hero{position:relative;min-height:88vh;display:flex;align-items:center;padding:104px 0 84px;overflow:hidden;isolation:isolate;border-bottom:1px solid var(--line);}
.hero-bg{position:absolute;inset:0;z-index:-2;background-image:url('/assets/images/backpic/back-1.webp');background-size:cover;background-position:center;opacity:.5;}
.hero-veil{position:absolute;inset:0;z-index:-1;background:
  radial-gradient(900px 520px at 16% 28%, rgba(10,16,32,.42), rgba(5,7,15,.94) 72%),
  linear-gradient(180deg, rgba(5,7,15,.52) 0%, rgba(5,7,15,.82) 60%, rgba(5,7,15,.98) 100%);}
.hero-inner{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);gap:56px;align-items:center;width:100%;}
.eyebrow{display:inline-flex;align-items:center;gap:8px;padding:7px 15px;border-radius:var(--r-pill);border:1px solid var(--line-strong);background:rgba(17,24,48,.6);color:var(--text-2);font-size:13px;letter-spacing:.04em;}
.eyebrow .dot{width:6px;height:6px;border-radius:50%;background:var(--primary);box-shadow:0 0 10px rgba(37,208,192,.9);}
.hero h1{margin-top:22px;font-size:clamp(30px,4vw,46px);line-height:1.28;font-weight:700;letter-spacing:0;}
.hero h1 span{background:linear-gradient(100deg,var(--primary),var(--secondary));-webkit-background-clip:text;background-clip:text;color:transparent;}
.hero-sub{margin-top:22px;max-width:560px;font-size:17px;line-height:1.85;color:var(--text-2);}
.hero-actions{margin-top:34px;display:flex;flex-wrap:wrap;gap:14px;}
.hero-metrics{margin-top:46px;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px;max-width:760px;}
.metric{padding:16px 18px;border-radius:var(--r-card);border:1px solid var(--line);background:rgba(17,24,48,.55);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);box-shadow:var(--shadow-card);}
.metric b{display:block;font-family:Inter,system-ui,sans-serif;font-size:24px;font-weight:700;color:var(--text);line-height:1.2;}
.metric span{display:block;margin-top:6px;font-size:13px;color:var(--text-3);}
.hero-visual{position:relative;}
.hero-visual img{width:100%;height:auto;border-radius:var(--r-img);border:1px solid var(--line-strong);box-shadow:0 30px 70px -34px rgba(0,0,0,.95);object-fit:cover;}
.hero-visual::after{content:"";position:absolute;inset:-24px -24px auto auto;width:180px;height:180px;border-radius:50%;background:radial-gradient(circle,rgba(138,107,255,.34),transparent 68%);filter:blur(6px);z-index:-1;}

/* ---------- anchor strip ---------- */
.anchor-strip{border-bottom:1px solid var(--line);background:rgba(10,16,32,.6);}
.anchor-row{display:flex;align-items:center;gap:10px;overflow-x:auto;scrollbar-width:none;padding:14px 0;}
.anchor-row::-webkit-scrollbar{display:none;}
.anchor-row a{flex:0 0 auto;font-size:13px;color:var(--text-3);padding:6px 14px;border-radius:var(--r-pill);border:1px solid var(--line);transition:color .2s var(--ease),border-color .2s var(--ease),background .2s var(--ease);}
.anchor-row a:hover{color:var(--text);border-color:rgba(37,208,192,.5);background:rgba(37,208,192,.08);}

/* ---------- sections ---------- */
section{scroll-margin-top:132px;}
.section{padding:110px 0;}
.section.panel{background:var(--bg-panel);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{max-width:720px;margin-bottom:48px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.tag{display:inline-block;font-size:12px;letter-spacing:.08em;text-transform:uppercase;color:var(--primary);border:1px solid rgba(37,208,192,.35);background:rgba(37,208,192,.08);padding:5px 12px;border-radius:var(--r-pill);}
h2{font-size:clamp(24px,2.6vw,32px);line-height:1.35;font-weight:700;margin-top:18px;position:relative;}
.section-head.center h2::after{content:"";display:block;width:56px;height:3px;border-radius:3px;margin:18px auto 0;background:linear-gradient(90deg,var(--primary),var(--secondary));}
.section-head h2::after{content:"";display:block;width:56px;height:3px;border-radius:3px;margin-top:16px;background:linear-gradient(90deg,var(--primary),var(--secondary));}
.section-head.center h2::after{margin-left:auto;margin-right:auto;}
.section-lead{margin-top:16px;font-size:16px;color:var(--text-2);line-height:1.85;}

/* ---------- bento ---------- */
.bento{display:grid;grid-template-columns:repeat(12,1fr);gap:22px;}
.card{border-radius:var(--r-card);border:1px solid var(--line);background:linear-gradient(180deg,rgba(17,24,48,.86),rgba(10,16,32,.86));box-shadow:var(--shadow-card);position:relative;overflow:hidden;transition:transform .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);}
.card::before{content:"";position:absolute;top:0;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,rgba(37,208,192,.9),rgba(138,107,255,.9),transparent);opacity:0;transition:opacity .2s var(--ease);}
.card:hover{transform:translateY(-4px);border-color:rgba(140,170,255,.32);box-shadow:inset 0 1px 0 rgba(255,255,255,.08),0 26px 50px -26px rgba(0,0,0,.95);}
.card:hover::before{opacity:1;}
.bento-a{grid-column:span 7;}
.bento-b{grid-column:span 5;}
.bento-sm{grid-column:span 4;}
.bento-a .card-media{height:236px;overflow:hidden;}
.bento-a .card-media img{width:100%;height:100%;object-fit:cover;}
.card-body{padding:26px;}
.icon-badge{width:42px;height:42px;border-radius:12px;display:flex;align-items:center;justify-content:center;border:1px solid var(--line-strong);background:rgba(37,208,192,.10);color:var(--primary);margin-bottom:16px;}
.icon-badge.purple{background:rgba(138,107,255,.12);color:#B9A6FF;border-color:rgba(138,107,255,.3);}
.icon-badge.gold{background:rgba(255,182,72,.12);color:var(--accent);border-color:rgba(255,182,72,.3);}
h3{font-size:20px;line-height:1.5;font-weight:700;}
.card-body p{margin-top:12px;color:var(--text-2);font-size:15px;}
.link-more{display:inline-flex;align-items:center;gap:6px;margin-top:18px;font-size:14px;color:var(--primary);font-weight:600;}
.link-more svg{transition:transform .2s var(--ease);}
.link-more:hover svg{transform:translateX(4px);}

/* ---------- showcase ---------- */
.showcase{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.05fr);gap:56px;align-items:center;}
.check-list{margin-top:26px;display:grid;gap:14px;}
.check-list li{display:flex;gap:12px;align-items:flex-start;font-size:15px;color:var(--text-2);}
.check-list svg{flex:0 0 auto;margin-top:4px;color:var(--primary);}
.showcase-media img{width:100%;height:auto;border-radius:var(--r-img);border:1px solid var(--line-strong);box-shadow:0 30px 70px -34px rgba(0,0,0,.95);object-fit:cover;}
.showcase-actions{margin-top:30px;display:flex;gap:14px;flex-wrap:wrap;}

/* ---------- posts ---------- */
.post-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.post-card{border-radius:var(--r-card);border:1px solid var(--line);background:linear-gradient(180deg,rgba(17,24,48,.86),rgba(10,16,32,.9));box-shadow:var(--shadow-card);overflow:hidden;position:relative;display:flex;flex-direction:column;transition:transform .2s var(--ease),border-color .2s var(--ease);}
.post-card::before{content:"";position:absolute;top:0;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,rgba(37,208,192,.9),rgba(138,107,255,.9),transparent);opacity:0;transition:opacity .2s var(--ease);}
.post-card:hover{transform:translateY(-4px);border-color:rgba(140,170,255,.32);}
.post-card:hover::before{opacity:1;}
.post-cover{display:block;aspect-ratio:16/9;overflow:hidden;}
.post-cover img{width:100%;height:100%;object-fit:cover;transition:transform .35s var(--ease);}
.post-card:hover .post-cover img{transform:scale(1.04);}
.post-body{padding:22px;display:flex;flex-direction:column;flex:1;}
.badge{display:inline-flex;align-items:center;align-self:flex-start;padding:4px 12px;border-radius:var(--r-pill);font-size:12px;color:var(--primary);border:1px solid rgba(37,208,192,.32);background:rgba(37,208,192,.10);}
.post-title{margin-top:14px;font-size:18px;line-height:1.55;font-weight:700;}
.post-title a{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;transition:color .2s var(--ease);}
.post-card:hover .post-title a{color:var(--primary);}
.post-excerpt{margin-top:10px;font-size:14px;color:var(--text-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.post-meta{margin-top:auto;padding-top:18px;display:flex;align-items:center;justify-content:space-between;gap:12px;border-top:1px solid var(--line);font-size:13px;color:var(--text-3);}
.post-meta time{display:inline-flex;align-items:center;gap:6px;}
.post-meta .link-more{margin-top:0;font-size:13px;}
.empty-state{grid-column:1/-1;padding:64px 24px;text-align:center;border-radius:var(--r-card);border:1px dashed var(--line-strong);background:rgba(17,24,48,.45);}
.empty-state .star{width:52px;height:52px;margin:0 auto 18px;border-radius:50%;display:flex;align-items:center;justify-content:center;border:1px solid var(--line-strong);color:var(--primary);background:rgba(37,208,192,.08);}
.empty-state p{color:var(--text-2);font-size:15px;}
.empty-state .link-more{margin-top:16px;}
.skeleton-wrap{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.skeleton{height:290px;border-radius:var(--r-card);border:1px solid var(--line);background:linear-gradient(100deg,rgba(17,24,48,.6) 30%,rgba(37,208,192,.14) 50%,rgba(17,24,48,.6) 70%);background-size:220% 100%;animation:shimmer 1.6s infinite linear;}
@keyframes shimmer{0%{background-position:120% 0;}100%{background-position:-120% 0;}}

/* ---------- evidence ---------- */
.evidence{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr);gap:48px;align-items:start;}
.logo-wall{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;}
.logo-chip{display:flex;align-items:center;justify-content:center;height:74px;border-radius:var(--r-card);border:1px solid var(--line);background:rgba(17,24,48,.5);color:var(--text-3);font-size:14px;letter-spacing:.02em;filter:grayscale(1);opacity:.78;transition:filter .25s var(--ease),opacity .25s var(--ease),border-color .25s var(--ease),color .25s var(--ease),transform .25s var(--ease);}
.logo-chip:hover{filter:grayscale(0);opacity:1;color:var(--text);border-color:rgba(37,208,192,.45);transform:translateY(-3px);}
.quote-stack{display:grid;gap:20px;}
.quote{padding:24px;border-radius:var(--r-card);border:1px solid var(--line);background:linear-gradient(180deg,rgba(17,24,48,.85),rgba(10,16,32,.9));box-shadow:var(--shadow-card);}
.quote.offset{margin-left:28px;}
.quote p{font-size:15px;color:var(--text-2);}
.quote footer{margin-top:16px;display:flex;align-items:center;gap:10px;font-size:13px;color:var(--text-3);}
.quote footer b{font-family:Inter,system-ui,sans-serif;color:var(--accent);font-size:18px;}

/* ---------- plans ---------- */
.plans{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;align-items:stretch;}
.plan{padding:30px 26px;border-radius:var(--r-card);border:1px solid var(--line);background:linear-gradient(180deg,rgba(17,24,48,.78),rgba(10,16,32,.86));box-shadow:var(--shadow-card);display:flex;flex-direction:column;transition:transform .2s var(--ease),border-color .2s var(--ease);}
.plan:hover{transform:translateY(-4px);border-color:rgba(140,170,255,.3);}
.plan.featured{border-color:rgba(37,208,192,.5);background:linear-gradient(180deg,rgba(37,208,192,.10),rgba(138,107,255,.10) 55%,rgba(10,16,32,.92));box-shadow:0 0 0 1px rgba(37,208,192,.35),0 34px 70px -34px rgba(37,208,192,.55);transform:translateY(-12px);}
.plan.featured:hover{transform:translateY(-16px);}
.plan-top{display:flex;align-items:center;justify-content:space-between;gap:12px;}
.plan h3{font-size:19px;}
.rec-badge{font-size:12px;color:#2A1A00;background:linear-gradient(120deg,var(--accent),#FFD79A);border-radius:var(--r-pill);padding:4px 12px;font-weight:700;}
.price{margin-top:18px;display:flex;align-items:baseline;gap:6px;}
.price b{font-family:Inter,system-ui,sans-serif;font-size:34px;font-weight:700;line-height:1;}
.price span{font-size:13px;color:var(--text-3);}
.plan-desc{margin-top:12px;font-size:14px;color:var(--text-2);}
.plan ul{margin-top:22px;display:grid;gap:12px;font-size:14px;color:var(--text-2);}
.plan ul li{display:flex;gap:10px;align-items:flex-start;}
.plan ul svg{flex:0 0 auto;margin-top:5px;color:var(--primary);}
.plan .btn{margin-top:26px;width:100%;}

/* ---------- faq ---------- */
.faq{max-width:860px;margin:0 auto;display:grid;gap:14px;}
.faq-item{border-radius:var(--r-card);border:1px solid var(--line);background:rgba(17,24,48,.6);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);overflow:hidden;transition:border-color .2s var(--ease);}
.faq-item.open{border-color:rgba(37,208,192,.45);}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:20px 22px;background:none;border:none;color:var(--text);font-size:16px;font-weight:600;text-align:left;cursor:pointer;}
.faq-q .plus{flex:0 0 auto;width:22px;height:22px;position:relative;transition:transform .25s var(--ease);color:var(--primary);}
.faq-q .plus::before,.faq-q .plus::after{content:"";position:absolute;background:currentColor;border-radius:2px;}
.faq-q .plus::before{left:0;right:0;top:10px;height:2px;}
.faq-q .plus::after{top:0;bottom:0;left:10px;width:2px;}
.faq-item.open .plus{transform:rotate(45deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s var(--ease);}
.faq-a p{padding:0 22px 22px;font-size:15px;color:var(--text-2);}

/* ---------- cta ---------- */
.cta-band{position:relative;padding:72px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:
  radial-gradient(700px 320px at 20% 0%, rgba(138,107,255,.28), transparent 70%),
  radial-gradient(600px 300px at 82% 100%, rgba(37,208,192,.22), transparent 70%),
  var(--bg-panel);}
.cta-inner{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,auto);gap:40px;align-items:center;}
.cta-inner h2{margin-top:0;font-size:clamp(22px,2.4vw,30px);}
.cta-inner p{margin-top:14px;color:var(--text-2);font-size:15px;max-width:560px;}
.cta-form{display:flex;gap:12px;flex-wrap:wrap;}
.cta-form input{height:48px;min-width:260px;padding:0 16px;border-radius:var(--r-btn);border:1px solid var(--line-strong);background:rgba(5,7,15,.6);color:var(--text);font-size:15px;transition:border-color .2s var(--ease),box-shadow .2s var(--ease);}
.cta-form input::placeholder{color:var(--text-3);}
.cta-form input:focus{outline:none;border-color:rgba(37,208,192,.65);box-shadow:0 0 0 3px rgba(37,208,192,.16);}
.cta-form .btn{height:48px;}
.form-hint{margin-top:12px;font-size:13px;color:var(--text-3);}

/* ---------- footer ---------- */
.site-footer{background:#04060D;border-top:1px solid var(--line);padding:64px 0 26px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;}
.footer-brand{display:flex;align-items:center;gap:10px;}
.footer-brand .brand-name{font-size:16px;}
.footer-about{margin-top:18px;font-size:14px;color:var(--text-3);line-height:1.9;max-width:360px;}
.footer-col h4{font-size:14px;font-weight:700;color:var(--text);letter-spacing:0;}
.footer-col ul{margin-top:18px;display:grid;gap:12px;}
.footer-col a{font-size:14px;color:var(--text-3);transition:color .2s var(--ease);}
.footer-col a:hover{color:var(--primary);}
.footer-bottom{margin-top:52px;padding-top:22px;border-top:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:var(--text-3);}
.footer-bottom a{color:var(--text-3);}
.footer-bottom a:hover{color:var(--primary);}

/* ---------- float cta ---------- */
.float-cta{position:fixed;right:24px;bottom:28px;z-index:140;display:none;align-items:center;gap:10px;height:52px;padding:0 22px;border-radius:var(--r-pill);border:1px solid rgba(37,208,192,.5);background:linear-gradient(120deg,rgba(37,208,192,.92),rgba(138,107,255,.92));color:#05131A;font-weight:700;font-size:15px;cursor:pointer;box-shadow:0 16px 34px -14px rgba(37,208,192,.7);transition:transform .2s var(--ease);}
.float-cta.show{display:inline-flex;}
.float-cta:hover{transform:translateY(-2px);}
.float-close{position:fixed;right:24px;bottom:88px;z-index:141;width:28px;height:28px;border-radius:50%;border:1px solid var(--line-strong);background:rgba(5,7,15,.9);color:var(--text-2);cursor:pointer;display:none;align-items:center;justify-content:center;font-size:15px;line-height:1;}
.float-close.show{display:flex;}

/* ---------- responsive ---------- */
@media (max-width:1279px){
  .container{padding:0 28px;}
  .hero-inner{gap:40px;}
}
@media (max-width:1023px){
  .container{padding:0 24px;}
  .section{padding:76px 0;}
  .hero{min-height:auto;padding:80px 0 64px;}
  .hero-inner{grid-template-columns:1fr;gap:44px;}
  .hero-metrics{grid-template-columns:repeat(2,minmax(0,1fr));}
  .bento-a,.bento-b{grid-column:span 12;}
  .bento-sm{grid-column:span 6;}
  .showcase{grid-template-columns:1fr;gap:40px;}
  .post-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .skeleton-wrap{grid-template-columns:repeat(2,minmax(0,1fr));}
  .evidence{grid-template-columns:1fr;gap:36px;}
  .plans{grid-template-columns:1fr;gap:22px;}
  .plan.featured{transform:none;}
  .plan.featured:hover{transform:translateY(-4px);}
  .cta-inner{grid-template-columns:1fr;gap:28px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:899px){
  .channel-bar{display:none;}
  .burger{display:flex;}
  .search{display:none;}
  .header-actions .btn-primary{display:none;}
}
@media (max-width:767px){
  body{font-size:15px;background-attachment:scroll;}
  .container{padding:0 20px;}
  .section{padding:60px 0;}
  .hero{padding:64px 0 52px;}
  .hero h1{margin-top:18px;}
  .hero-sub{font-size:16px;}
  .hero-actions .btn{width:100%;}
  .bento-sm{grid-column:span 12;}
  .card-body{padding:20px;}
  .bento-a .card-media{height:180px;}
  .post-grid{grid-template-columns:1fr;}
  .skeleton-wrap{grid-template-columns:1fr;}
  .logo-wall{grid-template-columns:repeat(2,minmax(0,1fr));}
  .quote.offset{margin-left:0;}
  .cta-form input{min-width:0;width:100%;}
  .cta-form .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .float-cta{right:16px;bottom:calc(16px + env(safe-area-inset-bottom,0px));height:48px;padding:0 18px;font-size:14px;}
  .float-close{right:16px;bottom:calc(74px + env(safe-area-inset-bottom,0px));}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important;}
  html{scroll-behavior:auto;}
}

/* roulang page: article */
:root{
  --bg-deep:#05070F;
  --bg-panel:#0A1020;
  --bg-elev:#111830;
  --primary:#25D0C0;
  --primary-soft:rgba(37,208,192,.14);
  --violet:#8A6BFF;
  --violet-soft:rgba(138,107,255,.16);
  --amber:#FFB648;
  --text:#EDF2FF;
  --text-2:#A8B4D4;
  --text-3:#6B7899;
  --ink:#05131A;
  --line:rgba(140,170,255,.14);
  --line-strong:rgba(140,170,255,.30);
  --radius-card:18px;
  --radius-img:14px;
  --radius-btn:12px;
  --pill:999px;
  --shadow-card:inset 0 1px 0 rgba(255,255,255,.05), 0 18px 40px -20px rgba(0,0,0,.8);
  --shadow-glow:0 0 0 1px rgba(37,208,192,.45), 0 10px 26px -8px rgba(37,208,192,.45);
  --ease:cubic-bezier(.2,.7,.3,1);
  --nav-h:72px;
  --font:"HarmonyOS Sans SC","Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",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);
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background-color:var(--bg-deep);
  background-image:
    radial-gradient(1100px 620px at 82% -8%, rgba(138,107,255,.15), transparent 62%),
    radial-gradient(900px 520px at 6% 4%, rgba(37,208,192,.10), transparent 58%);
  background-attachment:fixed;
  letter-spacing:0;
}
img{max-width:100%;height:auto;display:block;object-fit:cover}
a{color:inherit;text-decoration:none}
button{font-family:inherit}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0}
ul,ol{padding-left:1.2em}
:focus-visible{outline:none;box-shadow:0 0 0 2px #05070F,0 0 0 4px var(--primary),0 0 0 6px rgba(138,107,255,.55);border-radius:8px}
::selection{background:rgba(37,208,192,.28)}

.starfield{
  position:fixed;inset:0;z-index:0;pointer-events:none;opacity:.55;
  background-image:
    radial-gradient(1.2px 1.2px at 40px 60px, rgba(255,255,255,.55), transparent 60%),
    radial-gradient(1px 1px at 180px 140px, rgba(180,210,255,.42), transparent 60%),
    radial-gradient(1.4px 1.4px at 300px 40px, rgba(255,255,255,.36), transparent 60%),
    radial-gradient(1px 1px at 460px 220px, rgba(138,107,255,.5), transparent 60%),
    radial-gradient(1px 1px at 620px 120px, rgba(255,255,255,.3), transparent 60%);
  background-size:700px 320px;
}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px;position:relative;z-index:1}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(5,7,15,.78);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.topbar-inner{display:flex;align-items:center;gap:22px;height:var(--nav-h);transition:height .25s var(--ease)}
.site-header.scrolled .topbar-inner{height:56px}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:34px;height:34px;border-radius:11px;flex-shrink:0;
  display:grid;place-items:center;
  background:linear-gradient(140deg,rgba(37,208,192,.22),rgba(138,107,255,.26));
  border:1px solid var(--line-strong);
  box-shadow:0 0 18px -6px rgba(37,208,192,.6);
}
.brand-mark svg{width:19px;height:19px}
.brand-text{font-size:18px;font-weight:700;color:var(--text);white-space:nowrap}
.search{
  position:relative;flex:1;max-width:420px;min-width:200px;
  display:flex;align-items:center;
  background:rgba(255,255,255,.045);
  border:1px solid var(--line);
  border-radius:var(--pill);
  padding:0 16px;height:42px;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease);
}
.search:focus-within{border-color:rgba(37,208,192,.6);box-shadow:0 0 0 4px rgba(37,208,192,.14)}
.search svg{width:17px;height:17px;flex-shrink:0;color:var(--text-3)}
.search input{
  flex:1;border:0;background:transparent;color:var(--text);
  font-size:14px;height:100%;padding:0 0 0 10px;outline:none;
}
.search input::placeholder{color:var(--text-3)}
.topbar-actions{display:flex;align-items:center;gap:12px;margin-left:auto;flex-shrink:0}
.menu-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  background:rgba(255,255,255,.045);border:1px solid var(--line);
  color:var(--text);cursor:pointer;align-items:center;justify-content:center;
}
.menu-toggle svg{width:20px;height:20px}

.channels{
  max-width:1200px;margin:0 auto;padding:0 32px 10px;
  display:flex;align-items:center;gap:8px;
  overflow-x:auto;scrollbar-width:none;
  -webkit-mask-image:linear-gradient(90deg,transparent 0,#000 18px,#000 calc(100% - 18px),transparent 100%);
  mask-image:linear-gradient(90deg,transparent 0,#000 18px,#000 calc(100% - 18px),transparent 100%);
}
.channels::-webkit-scrollbar{display:none}
.channel{
  position:relative;flex-shrink:0;
  padding:8px 16px;border-radius:var(--pill);
  font-size:14px;color:var(--text-2);
  border:1px solid transparent;
  transition:color .2s var(--ease),background .2s var(--ease),border-color .2s var(--ease);
}
.channel:hover{color:var(--text);background:rgba(255,255,255,.05);border-color:var(--line)}
.channel.active{
  color:var(--text);font-weight:600;
  background:rgba(255,255,255,.06);
  border-color:var(--line-strong);
}
.channel.active::after{
  content:"";position:absolute;left:16px;right:16px;bottom:-9px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--primary),var(--violet));
}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 20px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;line-height:1;cursor:pointer;
  border:1px solid transparent;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease);
}
.btn svg{width:17px;height:17px}
.btn-primary{
  background:linear-gradient(135deg,#25D0C0,#8A6BFF);
  color:var(--ink);
  box-shadow:var(--shadow-glow);
}
.btn-primary:hover{transform:translateY(-1px);box-shadow:0 0 0 1px rgba(37,208,192,.6),0 16px 34px -10px rgba(37,208,192,.6)}
.btn-primary:active{transform:translateY(1px);box-shadow:0 0 0 1px rgba(37,208,192,.5)}
.btn-ghost{
  background:rgba(255,255,255,.045);border-color:var(--line);color:var(--text);
}
.btn-ghost:hover{transform:translateY(-1px);border-color:var(--line-strong);background:rgba(255,255,255,.08)}
.btn-ghost:active{transform:translateY(1px)}
.btn-sm{min-height:40px;padding:0 16px;font-size:14px}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;box-shadow:none;transform:none}
.link-more{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--primary);
}
.link-more svg{width:15px;height:15px;transition:transform .2s var(--ease)}
.link-more:hover svg{transform:translateX(4px)}

/* ---------- read progress ---------- */
.read-progress{position:fixed;top:0;left:0;right:0;height:2px;z-index:80;background:transparent;pointer-events:none}
.read-progress span{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--primary),var(--violet));box-shadow:0 0 12px rgba(37,208,192,.6);transition:width .1s linear}

/* ---------- article hero ---------- */
.article-hero{position:relative;overflow:hidden;border-bottom:1px solid var(--line);background:var(--bg-deep)}
.article-hero-bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center 32%;
  opacity:.34;
}
.article-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(5,7,15,.86) 0%,rgba(5,7,15,.9) 42%,var(--bg-deep) 100%);
}
.article-hero-inner{position:relative;z-index:2;padding:44px 0 52px;max-width:900px}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-3);margin-bottom:22px}
.crumbs a{color:var(--text-3);transition:color .18s var(--ease)}
.crumbs a:hover{color:var(--primary)}
.crumbs .crumb-current{color:var(--text-2);max-width:520px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 13px;border-radius:var(--pill);
  font-size:12.5px;font-weight:600;letter-spacing:.04em;
  color:var(--primary);background:var(--primary-soft);
  border:1px solid rgba(37,208,192,.28);
}
.article-hero h1{
  margin:16px 0 0;
  font-size:clamp(28px,4vw,44px);
  line-height:1.32;font-weight:700;letter-spacing:0;
  color:var(--text);
}
.meta-row{
  display:flex;flex-wrap:wrap;align-items:center;gap:14px;
  margin-top:22px;padding-top:18px;border-top:1px solid var(--line);
  font-size:13.5px;color:var(--text-3);
}
.meta-row .meta-item{display:inline-flex;align-items:center;gap:7px}
.meta-row .meta-item svg{width:15px;height:15px;color:var(--text-3)}
.meta-row .dot{width:4px;height:4px;border-radius:50%;background:var(--line-strong)}

/* ---------- layout ---------- */
.article-layout{
  display:grid;grid-template-columns:minmax(0,1fr);
  gap:48px;padding:56px 0 0;
}
@media (min-width:1280px){
  .article-layout{grid-template-columns:minmax(0,760px) 300px;justify-content:center;gap:56px}
}

/* ---------- article body ---------- */
.article-body{font-size:17px;line-height:1.95;color:#D9E2F8}
.article-body p{margin:0 0 1.2em}
.article-body h2{
  position:relative;font-size:26px;line-height:1.45;font-weight:700;color:var(--text);
  margin:2em 0 .8em;padding-left:16px;scroll-margin-top:140px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.22em;bottom:.22em;width:3px;border-radius:3px;
  background:linear-gradient(180deg,var(--primary),var(--violet));
}
.article-body h3{font-size:20px;line-height:1.5;font-weight:700;color:var(--text);margin:1.6em 0 .6em;scroll-margin-top:140px}
.article-body h4{font-size:17px;font-weight:700;color:var(--text);margin:1.4em 0 .5em}
.article-body ul,.article-body ol{margin:0 0 1.2em;padding-left:1.5em}
.article-body li{margin:.55em 0}
.article-body ul li::marker{color:var(--primary)}
.article-body ol li::marker{color:var(--primary);font-weight:700}
.article-body a{color:var(--primary);text-decoration:underline;text-underline-offset:3px;text-decoration-color:rgba(37,208,192,.4);transition:text-decoration-color .2s var(--ease)}
.article-body a:hover{text-decoration-color:var(--primary)}
.article-body strong{color:#FFFFFF;font-weight:700}
.article-body blockquote{
  margin:1.7em 0;padding:18px 22px;
  background:rgba(255,255,255,.04);
  border-left:3px solid var(--primary);
  border-radius:0 var(--radius-img) var(--radius-img) 0;
  color:var(--text-2);
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{
  max-width:100%;height:auto;margin:1.6em auto;
  border-radius:var(--radius-img);
  border:1px solid var(--line);
}
.article-body figure{margin:1.7em 0}
.article-body figcaption{font-size:13px;color:var(--text-3);text-align:center;margin-top:10px;line-height:1.7}
.article-body table{
  width:100%;margin:1.7em 0;border-collapse:separate;border-spacing:0;
  border:1px solid var(--line);border-radius:var(--radius-img);overflow:hidden;
  font-size:15px;line-height:1.7;
}
.article-body th,.article-body td{padding:12px 15px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
.article-body th{background:rgba(255,255,255,.05);color:var(--text);font-weight:600}
.article-body tr:last-child td{border-bottom:0}
.article-body pre{
  margin:1.7em 0;padding:16px 18px;overflow:auto;
  background:#080C18;border:1px solid var(--line);border-radius:var(--radius-img);
  font-size:14px;line-height:1.75;
}
.article-body code{
  padding:2px 6px;border-radius:6px;font-size:.92em;
  background:rgba(37,208,192,.12);color:#8FF0E5;
}
.article-body pre code{background:none;color:#C9D6F5;padding:0}
.article-body hr{border:0;height:1px;background:var(--line);margin:2.2em 0}

/* ---------- empty state ---------- */
.empty-state{
  padding:56px 32px;text-align:center;
  background:var(--bg-panel);border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-card);
}
.empty-state svg{width:44px;height:44px;color:var(--primary);margin:0 auto 18px;display:block}
.empty-state h2{font-size:22px;font-weight:700;color:var(--text)}
.empty-state p{margin:12px 0 24px;font-size:15px;color:var(--text-2)}

/* ---------- tags ---------- */
.tag-block{
  margin-top:48px;padding-top:28px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;align-items:center;gap:14px;
}
.tag-label{font-size:13px;color:var(--text-3);letter-spacing:.06em}
.tag-list{display:flex;flex-wrap:wrap;gap:10px}
.tag{
  display:inline-flex;align-items:center;
  padding:7px 15px;border-radius:var(--pill);
  font-size:13px;color:var(--text-2);
  background:rgba(255,255,255,.045);border:1px solid var(--line);
  transition:color .2s var(--ease),border-color .2s var(--ease),background .2s var(--ease),transform .2s var(--ease);
}
a.tag:hover{color:var(--primary);border-color:rgba(37,208,192,.45);background:rgba(37,208,192,.08);transform:translateY(-1px)}

/* ---------- back entry ---------- */
.back-entry{
  margin-top:26px;display:flex;flex-wrap:wrap;gap:14px;align-items:center;
}

/* ---------- sidebar ---------- */
.article-side{display:flex;flex-direction:column;gap:24px}
.toc-card,.hot-card{
  background:var(--bg-elev);border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-card);padding:20px 22px;
}
@media (min-width:1280px){
  .article-side{position:sticky;top:120px;align-self:start}
}
.side-title{
  display:flex;align-items:center;gap:9px;
  font-size:14px;font-weight:700;color:var(--text);letter-spacing:.02em;
  padding-bottom:14px;border-bottom:1px solid var(--line);margin-bottom:14px;
}
.side-title svg{width:17px;height:17px;color:var(--primary)}
.toc-card summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:10px;
  font-size:14px;font-weight:700;color:var(--text);
}
.toc-card summary::-webkit-details-marker{display:none}
.toc-card summary .caret{transition:transform .25s var(--ease);color:var(--text-3)}
.toc-card[open] summary .caret{transform:rotate(180deg)}
.toc-list{list-style:none;margin:16px 0 0;padding:0;display:flex;flex-direction:column;gap:2px}
.toc-list a{
  display:block;padding:8px 12px;border-radius:10px;
  font-size:13.5px;line-height:1.6;color:var(--text-2);
  border-left:2px solid transparent;
  transition:color .18s var(--ease),background .18s var(--ease),border-color .18s var(--ease);
}
.toc-list a:hover{color:var(--text);background:rgba(255,255,255,.05)}
.toc-list a.active{color:var(--primary);border-left-color:var(--primary);background:rgba(37,208,192,.08)}
.hot-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:14px}
.hot-list li{display:flex;gap:12px;align-items:flex-start}
.hot-num{
  flex-shrink:0;width:22px;height:22px;border-radius:7px;
  display:grid;place-items:center;font-size:12px;font-weight:700;
  color:var(--primary);background:var(--primary-soft);border:1px solid rgba(37,208,192,.25);
}
.hot-list a{font-size:14px;line-height:1.65;color:var(--text-2);transition:color .18s var(--ease)}
.hot-list a:hover{color:var(--primary)}

/* ---------- related ---------- */
.section{padding:96px 0 0}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:18px;margin-bottom:32px}
.section-head h2{font-size:clamp(24px,2.6vw,32px);font-weight:700;color:var(--text);line-height:1.35}
.section-head p{margin-top:10px;font-size:15px;color:var(--text-2);max-width:640px}
.grid-3{display:grid;gap:22px;grid-template-columns:repeat(3,minmax(0,1fr))}
.card{
  position:relative;display:flex;flex-direction:column;overflow:hidden;
  background:var(--bg-elev);border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-card);
  transition:transform .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;opacity:0;
  background:linear-gradient(90deg,transparent,var(--primary),var(--violet),transparent);
  transition:opacity .2s var(--ease);
}
.card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:0 24px 48px -24px rgba(0,0,0,.9)}
.card:hover::before{opacity:1}
.card-cover{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--bg-panel)}
.card-cover img{width:100%;height:100%;transition:transform .4s var(--ease)}
.card:hover .card-cover img{transform:scale(1.05)}
.card-body{padding:20px 22px 24px;display:flex;flex-direction:column;gap:12px;flex:1}
.card-body h3{font-size:19px;line-height:1.5;font-weight:700;color:var(--text);transition:color .2s var(--ease)}
.card:hover .card-body h3{color:var(--primary)}
.card-body p{font-size:14.5px;line-height:1.8;color:var(--text-2)}
.card-foot{margin-top:auto;padding-top:14px;border-top:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:12px}
.item-time{font-size:13px;color:var(--text-3);display:inline-flex;align-items:center;gap:6px}
.item-time svg{width:14px;height:14px}

/* ---------- cta ---------- */
.cta-band{
  margin-top:104px;padding:64px 0;
  background:
    radial-gradient(700px 320px at 82% 10%, rgba(138,107,255,.34), transparent 62%),
    radial-gradient(560px 280px at 12% 90%, rgba(37,208,192,.26), transparent 60%),
    var(--bg-panel);
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
}
.cta-inner{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:32px}
.cta-inner h2{font-size:clamp(23px,2.6vw,30px);font-weight:700;line-height:1.4;color:var(--text)}
.cta-inner p{margin-top:12px;font-size:15.5px;line-height:1.85;color:var(--text-2);max-width:620px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}

/* ---------- footer ---------- */
.site-footer{margin-top:0;background:var(--bg-deep);border-top:1px solid var(--line);padding:64px 0 30px}
.footer-grid{display:grid;gap:40px;grid-template-columns:1.4fr 1fr 1fr 1.2fr}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .brand-mark{width:30px;height:30px;border-radius:10px}
.footer-brand .brand-mark svg{width:16px;height:16px}
.footer-brand strong{font-size:17px;font-weight:700;color:var(--text)}
.footer-desc{font-size:14px;line-height:1.85;color:var(--text-2);max-width:330px}
.footer-fact{
  margin-top:18px;display:inline-flex;align-items:center;gap:8px;
  padding:8px 14px;border-radius:var(--pill);
  font-size:13px;color:var(--text-2);
  background:rgba(255,255,255,.045);border:1px solid var(--line);
}
.footer-fact b{color:var(--amber);font-size:14px}
.footer-col h3{font-size:14px;font-weight:700;color:var(--text);margin-bottom:16px;letter-spacing:.03em}
.footer-col ul{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:11px}
.footer-col a{font-size:14px;color:var(--text-2);transition:color .18s var(--ease)}
.footer-col a:hover{color:var(--primary)}
.footer-col li span{font-size:14px;color:var(--text-2)}
.footer-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--text-3);
}

/* ---------- drawer ---------- */
.drawer{
  position:fixed;inset:var(--nav-h) 0 0 0;z-index:70;
  background:rgba(5,7,15,.96);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  padding:26px 20px;display:none;
}
.drawer.open{display:block}
.drawer-inner{display:flex;flex-direction:column;gap:14px;max-width:520px;margin:0 auto}
.drawer .search{max-width:none;width:100%}
.drawer-link{
  display:block;padding:14px 16px;border-radius:14px;
  font-size:16px;color:var(--text);
  background:rgba(255,255,255,.045);border:1px solid var(--line);
}
.drawer-link.active{color:var(--primary);border-color:rgba(37,208,192,.4)}

/* ---------- responsive ---------- */
@media (max-width:1279px){
  .article-side{order:-1}
  .hot-card{display:none}
}
@media (max-width:1023px){
  .container{padding:0 24px}
  .channels{padding:0 24px 10px}
  .grid-3{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px}
  .section{padding:76px 0 0}
  .cta-band{margin-top:80px;padding:54px 0}
}
@media (max-width:767px){
  .container{padding:0 20px}
  .channels{padding:0 20px 8px}
  body{font-size:15px}
  .topbar-inner{height:64px;gap:14px}
  .site-header.scrolled .topbar-inner{height:56px}
  .search{display:none}
  .topbar-actions .btn-primary{display:none}
  .menu-toggle{display:inline-flex}
  .brand-text{font-size:16px}
  .article-hero-inner{padding:30px 0 38px}
  .meta-row{gap:10px;font-size:12.5px}
  .article-layout{padding:36px 0 0;gap:32px}
  .article-body{font-size:16px;line-height:1.9}
  .article-body h2{font-size:21px;margin:1.7em 0 .7em}
  .article-body h3{font-size:18px}
  .grid-3{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:30px}
  .section{padding:56px 0 0}
  .section-head{margin-bottom:24px}
  .cta-band{margin-top:56px;padding:42px 0}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 180px}
  .site-footer{padding:48px 0 24px}
}
@media (max-width:479px){
  .article-hero h1{font-size:24px}
  .tag{padding:6px 12px;font-size:12.5px}
  .cta-actions .btn{flex:1 1 100%}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important;scroll-behavior:auto !important}
}

/* roulang page: category1 */
:root{
  --bg-deep:#05070F;
  --bg-panel:#0A1020;
  --bg-elev:#111830;
  --main:#25D0C0;
  --main-soft:rgba(37,208,192,.14);
  --main-line:rgba(37,208,192,.45);
  --purple:#8A6BFF;
  --purple-soft:rgba(138,107,255,.16);
  --gold:#FFB648;
  --text:#EDF2FF;
  --text-2:#A8B4D4;
  --text-3:#6B7899;
  --line:rgba(140,170,255,.14);
  --line-strong:rgba(140,170,255,.3);
  --r-card:18px;
  --r-img:14px;
  --r-btn:12px;
  --r-pill:999px;
  --shadow-card:inset 0 1px 0 rgba(255,255,255,.06), 0 18px 40px -20px rgba(0,0,0,.8);
  --shadow-pop:inset 0 1px 0 rgba(255,255,255,.08), 0 26px 60px -26px rgba(0,0,0,.9);
  --glow-main:0 0 0 1px rgba(37,208,192,.45), 0 10px 26px -8px rgba(37,208,192,.45);
  --glow-soft:0 0 0 1px rgba(37,208,192,.28), 0 14px 34px -18px rgba(37,208,192,.5);
  --ease:cubic-bezier(.2,.7,.3,1);
  --head-h:132px;
  --space-sec:104px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--bg-deep);
  color:var(--text);
  font-family:"Noto Sans SC","HarmonyOS Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.8;
  letter-spacing:0;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background-image:
    radial-gradient(1.4px 1.4px at 12% 18%, rgba(237,242,255,.55), transparent 60%),
    radial-gradient(1.2px 1.2px at 68% 8%, rgba(237,242,255,.42), transparent 60%),
    radial-gradient(1.6px 1.6px at 84% 42%, rgba(180,210,255,.4), transparent 60%),
    radial-gradient(1.1px 1.1px at 32% 62%, rgba(237,242,255,.32), transparent 60%),
    radial-gradient(1.3px 1.3px at 54% 86%, rgba(200,220,255,.3), transparent 60%),
    radial-gradient(1px 1px at 8% 78%, rgba(237,242,255,.28), transparent 60%),
    radial-gradient(1.2px 1.2px at 92% 74%, rgba(200,220,255,.26), transparent 60%);
  opacity:.75;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}
input{font:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
svg{display:block;}
:focus-visible{outline:2px solid var(--main);outline-offset:2px;box-shadow:0 0 0 4px rgba(138,107,255,.35);border-radius:6px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px;position:relative;z-index:1;}
[id]{scroll-margin-top:calc(var(--head-h) + 16px);}

/* ============ 顶部导航 ============ */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:60;
  background:rgba(5,7,15,.62);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid transparent;
  transition:background .25s var(--ease),border-color .25s var(--ease);
}
.site-header::after{
  content:"";
  position:absolute;left:0;right:0;bottom:0;height:1px;
  background:linear-gradient(90deg,transparent,var(--line-strong) 20%,rgba(37,208,192,.35) 50%,var(--line-strong) 80%,transparent);
  opacity:0;transition:opacity .25s var(--ease);
}
.site-header.scrolled{background:rgba(5,7,15,.86);}
.site-header.scrolled::after{opacity:1;}
.topbar{
  display:flex;align-items:center;gap:24px;
  height:80px;
  transition:height .25s var(--ease);
}
.site-header.scrolled .topbar{height:60px;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:34px;height:34px;flex:0 0 34px;
  display:grid;place-items:center;
  border-radius:11px;
  background:linear-gradient(140deg,rgba(37,208,192,.22),rgba(138,107,255,.26));
  border:1px solid rgba(37,208,192,.4);
  box-shadow:0 0 18px -6px rgba(37,208,192,.7);
}
.brand-mark svg{width:19px;height:19px;}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-text b{font-size:17px;font-weight:700;letter-spacing:.01em;}
.brand-text span{font-size:11px;color:var(--text-3);letter-spacing:.08em;text-transform:uppercase;font-family:Inter,system-ui,sans-serif;}
.search{
  flex:1 1 auto;max-width:400px;
  display:flex;align-items:center;gap:10px;
  height:42px;padding:0 16px;
  border-radius:var(--r-pill);
  background:rgba(17,24,48,.6);
  border:1px solid var(--line);
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease);
}
.search:focus-within{border-color:var(--main-line);box-shadow:0 0 0 4px rgba(37,208,192,.14);background:rgba(17,24,48,.85);}
.search svg{width:17px;height:17px;color:var(--text-3);flex:0 0 17px;}
.search input{
  flex:1;background:none;border:0;outline:none;color:var(--text);font-size:14px;min-width:0;
}
.search input::placeholder{color:var(--text-3);}
.topbar-cta{display:flex;align-items:center;gap:12px;flex:0 0 auto;}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 22px;
  border-radius:var(--r-btn);
  font-size:15px;font-weight:500;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
  white-space:nowrap;
}
.btn-primary{
  background:linear-gradient(120deg,#25D0C0,#4FB0F0 45%,#8A6BFF);
  color:#05131A;font-weight:700;
  box-shadow:var(--glow-main);
}
.btn-primary:hover{transform:translateY(-1px);box-shadow:0 0 0 1px rgba(37,208,192,.55),0 16px 34px -10px rgba(37,208,192,.6);}
.btn-primary:active{transform:translateY(1px);}
.btn-ghost{
  background:rgba(17,24,48,.55);
  border:1px solid var(--line-strong);
  color:var(--text);
}
.btn-ghost:hover{transform:translateY(-1px);border-color:var(--main-line);background:rgba(37,208,192,.1);}
.btn-ghost:active{transform:translateY(1px);}
.btn-sm{min-height:40px;padding:0 16px;font-size:14px;}
.btn:disabled,.btn.is-disabled{opacity:.45;box-shadow:none;pointer-events:none;}

.burger{
  display:none;width:44px;height:44px;
  border-radius:12px;border:1px solid var(--line-strong);
  background:rgba(17,24,48,.55);
  place-items:center;
}
.burger span{display:block;width:18px;height:1.6px;background:var(--text);border-radius:2px;position:relative;}
.burger span::before,.burger span::after{
  content:"";position:absolute;left:0;width:18px;height:1.6px;background:var(--text);border-radius:2px;
}
.burger span::before{top:-6px;}
.burger span::after{top:6px;}

/* 频道行 */
.channels-wrap{
  position:relative;
  border-top:1px solid var(--line);
}
.channels{
  display:flex;align-items:center;gap:8px;
  overflow-x:auto;
  scrollbar-width:none;
  height:52px;
}
.channels::-webkit-scrollbar{display:none;}
.channel{
  position:relative;
  flex:0 0 auto;
  display:inline-flex;align-items:center;
  height:34px;padding:0 16px;
  border-radius:var(--r-pill);
  font-size:14.5px;color:var(--text-2);
  border:1px solid transparent;
  transition:color .2s var(--ease),background .2s var(--ease),border-color .2s var(--ease);
}
.channel:hover{color:var(--text);background:rgba(140,170,255,.08);}
.channel.active{
  color:var(--text);font-weight:500;
  background:rgba(140,170,255,.12);
  border-color:var(--line-strong);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08);
}
.channel.active::after{
  content:"";position:absolute;left:16px;right:16px;bottom:-1px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--main),var(--purple));
}
.channels-wrap::before,.channels-wrap::after{
  content:"";position:absolute;top:0;bottom:0;width:36px;pointer-events:none;z-index:2;
}
.channels-wrap::before{left:0;background:linear-gradient(90deg,rgba(5,7,15,.95),transparent);}
.channels-wrap::after{right:0;background:linear-gradient(270deg,rgba(5,7,15,.95),transparent);}

.mobile-panel{
  display:none;
  border-top:1px solid var(--line);
  background:rgba(5,7,15,.97);
  padding:14px 0 20px;
}
.mobile-panel.open{display:block;}
.mobile-panel a{
  display:flex;align-items:center;justify-content:space-between;
  min-height:48px;padding:0 4px;
  border-bottom:1px solid var(--line);
  color:var(--text-2);font-size:15px;
}
.mobile-panel a.active{color:var(--main);}
.mobile-panel .mb-search{
  display:flex;align-items:center;gap:10px;height:44px;padding:0 14px;margin:12px 0 4px;
  border-radius:var(--r-pill);background:rgba(17,24,48,.7);border:1px solid var(--line);
}
.mobile-panel .mb-search input{flex:1;background:none;border:0;outline:none;color:var(--text);font-size:14px;}

/* ============ 分类页 Hero ============ */
.cat-hero{
  position:relative;
  margin-top:var(--head-h);
  min-height:360px;
  display:flex;align-items:center;
  overflow:hidden;
  border-bottom:1px solid var(--line);
}
.cat-hero-bg{
  position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-2.webp");
  background-size:cover;
  background-position:78% 30%;
}
.cat-hero-bg::after{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(120% 90% at 12% 88%, rgba(5,7,15,.98) 0%, rgba(5,7,15,.82) 38%, rgba(5,7,15,.35) 68%, rgba(5,7,15,.55) 100%),
    linear-gradient(72deg, rgba(10,16,32,.92) 0%, rgba(10,16,32,.4) 52%, rgba(5,7,15,.25) 100%);
}
.cat-hero .container{position:relative;z-index:2;width:100%;padding-top:44px;padding-bottom:48px;}
.crumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--text-3);margin-bottom:18px;
}
.crumb a{color:var(--text-3);transition:color .2s var(--ease);}
.crumb a:hover{color:var(--main);}
.crumb i{font-style:normal;color:rgba(140,170,255,.4);}
.cat-hero h1{
  font-size:clamp(30px,4vw,46px);
  font-weight:700;line-height:1.25;
  max-width:820px;
}
.cat-hero .lead{
  margin-top:16px;
  font-size:16.5px;color:var(--text-2);
  max-width:660px;line-height:1.85;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:26px;}
.hero-stats{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:14px;
  max-width:640px;
  margin-top:32px;
}
.stat{
  padding:14px 18px;
  border-radius:var(--r-img);
  background:rgba(17,24,48,.55);
  border:1px solid var(--line);
  backdrop-filter:blur(8px);
  -webkit-backdrop-filter:blur(8px);
}
.stat b{
  display:block;
  font-family:Inter,system-ui,sans-serif;
  font-size:24px;font-weight:700;line-height:1.2;
  color:var(--text);
}
.stat b em{font-style:normal;font-size:14px;color:var(--text-2);margin-left:3px;font-weight:500;}
.stat span{display:block;font-size:12.5px;color:var(--text-3);margin-top:2px;}
.stat:nth-child(2) b{color:var(--main);}
.stat:nth-child(3) b{color:var(--gold);}

/* ============ 通用板块 ============ */
.section{padding:var(--space-sec) 0;position:relative;}
.section.alt{background:var(--bg-panel);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.sec-head{max-width:720px;margin-bottom:44px;}
.sec-tag{
  display:inline-flex;align-items:center;gap:8px;
  height:28px;padding:0 14px;margin-bottom:16px;
  border-radius:var(--r-pill);
  font-size:12.5px;letter-spacing:.04em;
  color:var(--main);
  background:var(--main-soft);
  border:1px solid rgba(37,208,192,.3);
}
.sec-tag i{width:5px;height:5px;border-radius:50%;background:var(--main);box-shadow:0 0 8px var(--main);}
.sec-tag.purple{color:#BCA6FF;background:var(--purple-soft);border-color:rgba(138,107,255,.32);}
.sec-tag.purple i{background:var(--purple);box-shadow:0 0 8px var(--purple);}
.sec-head h2{
  font-size:clamp(24px,2.6vw,32px);
  font-weight:700;line-height:1.35;
  position:relative;padding-left:16px;
}
.sec-head h2::before{
  content:"";position:absolute;left:0;top:.22em;bottom:.22em;width:3px;border-radius:3px;
  background:linear-gradient(180deg,var(--main),var(--purple));
}
.sec-head p{margin-top:14px;color:var(--text-2);font-size:15.5px;line-height:1.85;}

/* ============ 主内容：粘性锚点 + 图文清单 ============ */
.cat-layout{
  display:grid;
  grid-template-columns:236px minmax(0,1fr);
  gap:36px;
  align-items:start;
}
.cat-aside{
  position:sticky;
  top:calc(var(--head-h) + 24px);
  padding:22px;
  border-radius:var(--r-card);
  background:linear-gradient(180deg,rgba(17,24,48,.85),rgba(10,16,32,.7));
  border:1px solid var(--line);
  box-shadow:var(--shadow-card);
}
.cat-aside h3{
  font-size:13px;letter-spacing:.08em;text-transform:uppercase;
  color:var(--text-3);font-family:Inter,system-ui,sans-serif;
  margin-bottom:14px;
}
.cat-aside ul{display:flex;flex-direction:column;gap:2px;}
.cat-aside a{
  display:flex;align-items:center;gap:10px;
  min-height:40px;padding:0 12px;
  border-radius:10px;
  font-size:14px;color:var(--text-2);
  transition:background .2s var(--ease),color .2s var(--ease);
}
.cat-aside a::before{
  content:"";width:5px;height:5px;border-radius:50%;
  background:rgba(140,170,255,.4);
  transition:background .2s var(--ease),box-shadow .2s var(--ease);
}
.cat-aside a:hover{background:rgba(140,170,255,.09);color:var(--text);}
.cat-aside a.active{background:rgba(37,208,192,.12);color:var(--text);}
.cat-aside a.active::before{background:var(--main);box-shadow:0 0 8px var(--main);}
.cat-aside .aside-cta{
  display:block;margin-top:18px;padding-top:18px;
  border-top:1px solid var(--line);
}
.cat-aside .aside-cta a{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--main);font-size:14px;min-height:auto;padding:0;
}
.cat-aside .aside-cta a::before{display:none;}
.cat-aside .aside-cta a:hover{background:none;color:#5BE5D7;}

.entry-list{display:flex;flex-direction:column;gap:20px;}
.entry{
  position:relative;
  display:grid;
  grid-template-columns:172px minmax(0,1fr);
  gap:22px;
  padding:20px;
  border-radius:var(--r-card);
  background:linear-gradient(160deg,rgba(17,24,48,.75),rgba(10,16,32,.62));
  border:1px solid var(--line);
  box-shadow:var(--shadow-card);
  overflow:hidden;
  transition:transform .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.entry::after{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,var(--main),var(--purple),transparent);
  opacity:0;transition:opacity .22s var(--ease);
}
.entry:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--shadow-pop);}
.entry:hover::after{opacity:1;}
.entry-thumb{
  position:relative;
  aspect-ratio:16/11;
  border-radius:var(--r-img);
  overflow:hidden;
  border:1px solid var(--line);
  background:var(--bg-elev);
}
.entry-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease);}
.entry:hover .entry-thumb img{transform:scale(1.04);}
.entry-body{display:flex;flex-direction:column;gap:10px;min-width:0;}
.entry-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;}
.badge{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;
  border-radius:var(--r-pill);
  font-size:12.5px;
  color:var(--main);
  background:rgba(37,208,192,.12);
  border:1px solid rgba(37,208,192,.28);
}
.badge.purple{color:#BCA6FF;background:var(--purple-soft);border-color:rgba(138,107,255,.3);}
.badge.gold{color:var(--gold);background:rgba(255,182,72,.12);border-color:rgba(255,182,72,.3);}
.entry h3{font-size:19px;font-weight:700;line-height:1.5;}
.entry h3 a{transition:color .2s var(--ease);}
.entry:hover h3 a{color:var(--main);}
.entry p{font-size:14.5px;color:var(--text-2);line-height:1.8;}
.entry-foot{
  margin-top:auto;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
  padding-top:12px;border-top:1px solid var(--line);
  font-size:13px;color:var(--text-3);
}
.entry-foot time{font-family:Inter,system-ui,sans-serif;}
.link-more{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--main);font-size:14px;font-weight:500;
  transition:gap .2s var(--ease),color .2s var(--ease);
}
.link-more svg{width:15px;height:15px;transition:transform .2s var(--ease);}
.link-more:hover{gap:10px;color:#5BE5D7;}

/* ============ 准备清单 ============ */
.check-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:22px;
}
.check-card{
  padding:26px;
  border-radius:var(--r-card);
  background:linear-gradient(160deg,rgba(17,24,48,.72),rgba(10,16,32,.6));
  border:1px solid var(--line);
  box-shadow:var(--shadow-card);
  transition:transform .22s var(--ease),border-color .22s var(--ease);
}
.check-card:hover{transform:translateY(-4px);border-color:var(--line-strong);}
.check-card h3{
  display:flex;align-items:center;gap:10px;
  font-size:18px;font-weight:700;margin-bottom:6px;
}
.check-card h3 svg{width:20px;height:20px;color:var(--main);flex:0 0 20px;}
.check-card > p{font-size:14.5px;color:var(--text-2);margin-bottom:16px;}
.check-list{display:flex;flex-direction:column;gap:12px;}
.check-list li{
  position:relative;padding-left:26px;
  font-size:14.5px;color:var(--text-2);line-height:1.75;
}
.check-list li::before{
  content:"";position:absolute;left:0;top:.55em;
  width:12px;height:7px;
  border-left:2px solid var(--main);
  border-bottom:2px solid var(--main);
  transform:rotate(-45deg) translateY(-2px);
  border-radius:1px;
  opacity:.9;
}

/* ============ 流程步骤 ============ */
.flow{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:20px;
  position:relative;
}
.flow::before{
  content:"";position:absolute;left:6%;right:6%;top:34px;height:1px;
  background:linear-gradient(90deg,transparent,rgba(37,208,192,.4),rgba(138,107,255,.4),transparent);
  z-index:0;
}
.flow-step{
  position:relative;z-index:1;
  padding:26px 22px;
  border-radius:var(--r-card);
  background:rgba(10,16,32,.86);
  border:1px solid var(--line);
  transition:transform .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.flow-step:hover{transform:translateY(-4px);border-color:var(--main-line);box-shadow:var(--glow-soft);}
.flow-num{
  width:36px;height:36px;border-radius:11px;
  display:grid;place-items:center;
  font-family:Inter,system-ui,sans-serif;font-weight:700;font-size:15px;
  color:var(--main);
  background:rgba(37,208,192,.1);
  border:1px solid rgba(37,208,192,.32);
  margin-bottom:14px;
}
.flow-step h3{font-size:17px;font-weight:700;margin-bottom:8px;}
.flow-step p{font-size:14px;color:var(--text-2);line-height:1.8;}

/* ============ 图文分栏 ============ */
.split{
  display:grid;
  grid-template-columns:minmax(0,1fr) minmax(0,1.05fr);
  gap:48px;
  align-items:center;
}
.split-media{
  position:relative;
  border-radius:var(--r-card);
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--shadow-card);
  aspect-ratio:4/3;
  background:var(--bg-elev);
}
.split-media img{width:100%;height:100%;object-fit:cover;}
.split-media figcaption{
  position:absolute;left:16px;bottom:16px;
  padding:8px 14px;border-radius:var(--r-pill);
  font-size:12.5px;color:var(--text-2);
  background:rgba(5,7,15,.72);
  border:1px solid var(--line);
  backdrop-filter:blur(8px);
  -webkit-backdrop-filter:blur(8px);
}
.split-text h2{font-size:clamp(24px,2.6vw,32px);font-weight:700;line-height:1.35;}
.split-text > p{margin-top:16px;color:var(--text-2);font-size:15.5px;line-height:1.9;}
.mini-list{margin-top:24px;display:flex;flex-direction:column;gap:14px;}
.mini-list li{
  display:flex;gap:12px;align-items:flex-start;
  padding:14px 16px;
  border-radius:var(--r-img);
  background:rgba(17,24,48,.5);
  border:1px solid var(--line);
  font-size:14.5px;color:var(--text-2);
  transition:border-color .2s var(--ease),transform .2s var(--ease);
}
.mini-list li:hover{border-color:var(--main-line);transform:translateX(3px);}
.mini-list li b{color:var(--text);font-weight:500;}
.mini-list li svg{width:18px;height:18px;color:var(--main);flex:0 0 18px;margin-top:4px;}

/* ============ FAQ ============ */
.faq-wrap{max-width:860px;margin:0 auto;}
.faq-item{
  border-radius:var(--r-img);
  background:linear-gradient(160deg,rgba(17,24,48,.7),rgba(10,16,32,.6));
  border:1px solid var(--line);
  margin-bottom:14px;
  overflow:hidden;
  transition:border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.faq-item:hover{border-color:var(--line-strong);}
.faq-item.open{border-color:var(--main-line);box-shadow:var(--glow-soft);}
.faq-q{
  width:100%;
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 24px;
  text-align:left;
  font-size:16.5px;font-weight:500;color:var(--text);
  min-height:44px;
}
.faq-icon{
  position:relative;flex:0 0 22px;width:22px;height:22px;
  transition:transform .25s var(--ease);
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;
  background:var(--main);border-radius:2px;
  transform:translate(-50%,-50%);
}
.faq-icon::before{width:14px;height:1.8px;}
.faq-icon::after{width:1.8px;height:14px;}
.faq-item.open .faq-icon{transform:rotate(45deg);}
.faq-a{
  max-height:0;overflow:hidden;
  transition:max-height .3s var(--ease),padding .3s var(--ease);
  padding:0 24px;
}
.faq-item.open .faq-a{max-height:340px;padding:0 24px 22px;}
.faq-a p{font-size:14.8px;color:var(--text-2);line-height:1.9;}

/* ============ CTA 带 ============ */
.cta-band{
  position:relative;
  overflow:hidden;
  border-radius:24px;
  padding:52px 48px;
  background:
    radial-gradient(90% 130% at 8% 12%, rgba(37,208,192,.24), transparent 55%),
    radial-gradient(80% 120% at 92% 88%, rgba(138,107,255,.3), transparent 58%),
    linear-gradient(150deg,#0C1730,#0A1020);
  border:1px solid var(--line-strong);
  box-shadow:var(--shadow-pop);
  display:grid;
  grid-template-columns:minmax(0,1.15fr) minmax(0,1fr);
  gap:40px;
  align-items:center;
}
.cta-band h2{font-size:clamp(23px,2.5vw,30px);font-weight:700;line-height:1.35;}
.cta-band p{margin-top:14px;color:var(--text-2);font-size:15px;line-height:1.85;max-width:520px;}
.cta-form{display:flex;flex-direction:column;gap:12px;}
.cta-form label{font-size:13.5px;color:var(--text-3);}
.cta-input{
  width:100%;height:48px;padding:0 16px;
  border-radius:var(--r-btn);
  background:rgba(5,7,15,.6);
  border:1px solid var(--line-strong);
  color:var(--text);outline:none;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.cta-input::placeholder{color:var(--text-3);}
.cta-input:focus{border-color:var(--main-line);box-shadow:0 0 0 4px rgba(37,208,192,.14);}
.cta-input.error{border-color:#FF6B7A;box-shadow:0 0 0 4px rgba(255,107,122,.14);}
.form-row{display:flex;gap:12px;flex-wrap:wrap;}
.form-row .cta-input{flex:1 1 200px;}
.form-hint{font-size:12.5px;color:var(--text-3);}
.form-msg{font-size:13.5px;min-height:20px;color:var(--main);}
.form-msg.err{color:#FF8A96;}

/* ============ 页脚 ============ */
.site-footer{
  margin-top:0;
  padding:72px 0 32px;
  background:var(--bg-panel);
  border-top:1px solid var(--line);
  position:relative;
}
.foot-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.1fr;
  gap:36px;
  padding-bottom:36px;
  border-bottom:1px solid var(--line);
}
.foot-brand .brand{margin-bottom:16px;}
.foot-brand p{font-size:14px;color:var(--text-2);line-height:1.85;max-width:340px;}
.foot-note{
  display:inline-flex;align-items:center;gap:6px;
  margin-top:16px;padding:8px 14px;
  border-radius:var(--r-pill);
  background:rgba(37,208,192,.1);
  border:1px solid rgba(37,208,192,.26);
  font-size:13px;color:var(--text-2);
}
.foot-note b{color:var(--main);font-family:Inter,system-ui,sans-serif;font-size:15px;}
.foot-col h4{
  font-size:14px;font-weight:700;color:var(--text);
  margin-bottom:16px;
}
.foot-col ul{display:flex;flex-direction:column;gap:10px;}
.foot-col a{font-size:14px;color:var(--text-2);transition:color .2s var(--ease);}
.foot-col a:hover{color:var(--main);}
.foot-col li{font-size:14px;color:var(--text-2);}
.foot-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
  padding-top:24px;
  font-size:12.8px;color:var(--text-3);
}
.foot-bottom span{line-height:1.8;}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .container{padding:0 24px;}
  :root{--space-sec:88px;}
}
@media (max-width:1023px){
  :root{--head-h:124px;--space-sec:72px;}
  .search{max-width:280px;}
  .cat-layout{grid-template-columns:1fr;gap:26px;}
  .cat-aside{position:static;padding:16px;}
  .cat-aside ul{flex-direction:row;flex-wrap:nowrap;overflow-x:auto;gap:8px;scrollbar-width:none;}
  .cat-aside ul::-webkit-scrollbar{display:none;}
  .cat-aside a{
    flex:0 0 auto;height:36px;min-height:36px;padding:0 14px;
    border-radius:var(--r-pill);
    border:1px solid var(--line);
    background:rgba(17,24,48,.5);
  }
  .cat-aside a::before{display:none;}
  .cat-aside .aside-cta{margin-top:14px;padding-top:14px;}
  .flow{grid-template-columns:repeat(2,minmax(0,1fr));}
  .flow::before{display:none;}
  .split{grid-template-columns:1fr;gap:28px;}
  .check-grid{grid-template-columns:1fr;}
  .cta-band{grid-template-columns:1fr;padding:40px 30px;gap:28px;}
  .foot-grid{grid-template-columns:1fr 1fr;gap:28px;}
}
@media (max-width:767px){
  :root{--head-h:112px;--space-sec:56px;}
  body{font-size:15px;}
  .container{padding:0 20px;}
  .search{display:none;}
  .topbar{height:64px;gap:14px;}
  .site-header.scrolled .topbar{height:56px;}
  .site-header .topbar-cta .btn{display:none;}
  .burger{display:grid;}
  .channels{height:48px;gap:6px;}
  .channel{height:32px;padding:0 13px;font-size:14px;}
  .cat-hero{min-height:auto;}
  .cat-hero .container{padding-top:34px;padding-bottom:38px;}
  .cat-hero h1{font-size:clamp(25px,7vw,32px);}
  .cat-hero .lead{font-size:15px;}
  .hero-stats{grid-template-columns:1fr 1fr;gap:10px;max-width:100%;}
  .stat b{font-size:20px;}
  .sec-head{margin-bottom:30px;}
  .sec-head h2{font-size:23px;}
  .entry{grid-template-columns:1fr;gap:16px;padding:16px;}
  .entry-thumb{aspect-ratio:16/9;}
  .entry h3{font-size:17px;}
  .flow{grid-template-columns:1fr;}
  .cta-band{padding:32px 22px;border-radius:20px;}
  .faq-q{padding:16px 18px;font-size:15.5px;}
  .faq-a{padding:0 18px;}
  .faq-item.open .faq-a{padding:0 18px 18px;max-height:420px;}
  .site-footer{padding:52px 0 26px;}
  .foot-grid{grid-template-columns:1fr;gap:26px;}
  .foot-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:479px){
  .hero-stats{grid-template-columns:1fr;}
  .btn{width:100%;}
  .hero-actions{flex-direction:column;}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.01ms !important;transition-duration:.01ms !important;}
}

/* roulang page: category2 */
:root{
  --bg-deep:#05070F;
  --bg-panel:#0A1020;
  --bg-elev:#111830;
  --c-teal:#25D0C0;
  --c-purple:#8A6BFF;
  --c-gold:#FFB648;
  --t-main:#EDF2FF;
  --t-sub:#A8B4D4;
  --t-weak:#6B7899;
  --t-invert:#05131A;
  --line:rgba(140,170,255,.14);
  --line-strong:rgba(140,170,255,.28);
  --r-card:18px;
  --r-img:14px;
  --r-btn:12px;
  --r-pill:999px;
  --shadow-card:inset 0 1px 0 rgba(255,255,255,.06),0 18px 40px -20px rgba(0,0,0,.85);
  --shadow-glow:0 0 0 1px rgba(37,208,192,.45),0 10px 26px -8px rgba(37,208,192,.45);
  --container:1200px;
  --gap:24px;
  --nav-h:72px;
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg-deep);
  color:var(--t-main);
  font-family:"Noto Sans SC","HarmonyOS Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",Inter,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.8;
  letter-spacing:0;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background-image:
    radial-gradient(1.4px 1.4px at 12% 18%,rgba(255,255,255,.55),transparent 60%),
    radial-gradient(1.2px 1.2px at 38% 62%,rgba(200,220,255,.42),transparent 60%),
    radial-gradient(1.6px 1.6px at 72% 28%,rgba(255,255,255,.5),transparent 60%),
    radial-gradient(1.1px 1.1px at 86% 74%,rgba(180,200,255,.4),transparent 60%),
    radial-gradient(1.3px 1.3px at 54% 90%,rgba(255,255,255,.38),transparent 60%),
    radial-gradient(1px 1px at 24% 82%,rgba(160,190,255,.35),transparent 60%);
  opacity:.7;
}
body::after{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background:
    radial-gradient(680px 420px at 12% -6%,rgba(138,107,255,.20),transparent 70%),
    radial-gradient(760px 460px at 92% 8%,rgba(37,208,192,.14),transparent 72%);
}
img{max-width:100%;display:block;object-fit:cover;}
a{color:inherit;text-decoration:none;}
button,input{font:inherit;color:inherit;}
button{background:none;border:0;cursor:pointer;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
:focus-visible{outline:2px solid var(--c-teal);outline-offset:2px;box-shadow:0 0 0 4px rgba(138,107,255,.35);border-radius:6px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px;position:relative;z-index:2;}
main{position:relative;z-index:2;}
section{scroll-margin-top:calc(var(--nav-h) + 60px);}

/* ---------- Header / Nav ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(5,7,15,.78);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
  transition:background .25s var(--ease);
}
.nav-top{
  height:var(--nav-h);
  display:flex;
  align-items:center;
  gap:20px;
  transition:height .25s var(--ease);
}
.site-header.is-shrink .nav-top{height:56px;}
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
}
.brand-mark{
  width:34px;height:34px;border-radius:10px;
  display:grid;place-items:center;
  background:linear-gradient(140deg,rgba(37,208,192,.22),rgba(138,107,255,.26));
  border:1px solid var(--line-strong);
  box-shadow:0 6px 18px -10px rgba(37,208,192,.8);
}
.brand-mark svg{width:20px;height:20px;stroke:var(--c-teal);fill:none;stroke-width:1.5;}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-name{font-size:16px;font-weight:700;letter-spacing:0;}
.brand-sub{font-size:11px;color:var(--t-weak);letter-spacing:.08em;text-transform:uppercase;}
.nav-search{
  flex:1;
  max-width:420px;
  display:flex;
  align-items:center;
  gap:8px;
  height:40px;
  padding:0 14px;
  border-radius:var(--r-pill);
  background:rgba(255,255,255,.04);
  border:1px solid var(--line);
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.nav-search:focus-within{border-color:rgba(37,208,192,.7);box-shadow:0 0 0 4px rgba(37,208,192,.14);}
.nav-search svg{width:18px;height:18px;stroke:var(--t-sub);fill:none;stroke-width:1.5;flex-shrink:0;}
.nav-search input{
  flex:1;border:0;background:transparent;outline:none;font-size:14px;color:var(--t-main);
}
.nav-search input::placeholder{color:var(--t-weak);}
.nav-actions{margin-left:auto;display:flex;align-items:center;gap:10px;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;
  padding:0 20px;
  border-radius:var(--r-btn);
  font-size:15px;
  font-weight:500;
  letter-spacing:0;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease),border-color .2s var(--ease),opacity .2s var(--ease);
  white-space:nowrap;
}
.btn-primary{
  color:var(--t-invert);
  background:linear-gradient(120deg,var(--c-teal),var(--c-purple));
  box-shadow:var(--shadow-glow);
  font-weight:700;
}
.btn-primary:hover{transform:translateY(-1px);box-shadow:0 0 0 1px rgba(37,208,192,.6),0 16px 34px -10px rgba(37,208,192,.6);}
.btn-primary:active{transform:translateY(1px);}
.btn-ghost{
  color:var(--t-main);
  background:rgba(255,255,255,.04);
  border:1px solid var(--line-strong);
}
.btn-ghost:hover{transform:translateY(-1px);border-color:rgba(37,208,192,.55);background:rgba(37,208,192,.08);}
.btn-sm{min-height:38px;padding:0 16px;font-size:14px;}
.btn:disabled,.btn[aria-disabled="true"]{opacity:.45;box-shadow:none;pointer-events:none;}
.burger{
  display:none;
  width:44px;height:44px;
  border-radius:12px;
  border:1px solid var(--line-strong);
  background:rgba(255,255,255,.04);
  place-items:center;
}
.burger span{display:block;width:18px;height:1.5px;background:var(--t-main);margin:3px 0;transition:transform .2s var(--ease);}

.nav-channels-bar{
  border-top:1px solid var(--line);
  background:rgba(5,7,15,.55);
}
.channels{
  display:flex;
  align-items:center;
  gap:8px;
  overflow-x:auto;
  scrollbar-width:none;
  padding:8px 0;
  -webkit-overflow-scrolling:touch;
}
.channels::-webkit-scrollbar{display:none;}
.channel{
  position:relative;
  flex-shrink:0;
  display:inline-flex;align-items:center;
  min-height:38px;
  padding:0 18px;
  border-radius:var(--r-pill);
  font-size:14px;
  color:var(--t-sub);
  border:1px solid transparent;
  transition:color .2s var(--ease),background .2s var(--ease),border-color .2s var(--ease);
}
.channel::after{
  content:"";
  position:absolute;left:18px;right:18px;bottom:2px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--c-teal),var(--c-purple));
  transform:scaleX(0);transform-origin:left;transition:transform .25s var(--ease);
}
.channel:hover{color:var(--t-main);background:rgba(255,255,255,.05);}
.channel:hover::after{transform:scaleX(.5);}
.channel.active{
  color:var(--t-main);
  background:rgba(255,255,255,.06);
  border-color:var(--line-strong);
}
.channel.active::after{transform:scaleX(1);}
.mobile-panel{
  display:none;
  padding:12px 0 18px;
  border-top:1px solid var(--line);
}
.mobile-panel.open{display:block;}
.mobile-panel a{
  display:block;
  padding:12px 4px;
  border-bottom:1px solid var(--line);
  font-size:15px;
  color:var(--t-sub);
}
.mobile-panel a.active{color:var(--c-teal);}
.mobile-panel .nav-search{margin:12px 0 4px;max-width:none;}

/* ---------- Hero ---------- */
.cat-hero{
  position:relative;
  min-height:360px;
  display:flex;
  align-items:flex-end;
  padding:72px 0 56px;
  overflow:hidden;
  border-bottom:1px solid var(--line);
}
.cat-hero-bg{
  position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-2.webp");
  background-size:cover;
  background-position:78% 40%;
  filter:saturate(1.05);
}
.cat-hero-bg::after{
  content:"";
  position:absolute;inset:0;
  background:
    linear-gradient(180deg,rgba(5,7,15,.86) 0%,rgba(5,7,15,.55) 45%,rgba(5,7,15,.96) 100%),
    linear-gradient(90deg,rgba(5,7,15,.96) 0%,rgba(5,7,15,.62) 46%,rgba(10,16,32,.18) 100%);
}
.cat-hero .container{position:relative;z-index:2;}
.breadcrumb{
  display:flex;align-items:center;gap:8px;
  font-size:13px;color:var(--t-weak);
  margin-bottom:18px;
}
.breadcrumb a:hover{color:var(--c-teal);}
.breadcrumb .sep{opacity:.6;}
.cat-kicker{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;
  border-radius:var(--r-pill);
  border:1px solid var(--line-strong);
  background:rgba(255,255,255,.05);
  font-size:12px;color:var(--c-teal);
  letter-spacing:.08em;text-transform:uppercase;
  margin-bottom:16px;
}
.cat-hero h1{
  font-size:clamp(30px,4vw,46px);
  line-height:1.28;
  font-weight:700;
  max-width:820px;
}
.cat-hero .hero-sub{
  margin-top:16px;
  max-width:680px;
  font-size:16px;
  color:var(--t-sub);
  line-height:1.85;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px;}
.hero-stats{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:16px;
  margin-top:34px;
  max-width:860px;
}
.stat{
  padding:16px 18px;
  border-radius:var(--r-card);
  background:rgba(17,24,48,.62);
  border:1px solid var(--line);
  box-shadow:var(--shadow-card);
}
.stat b{display:block;font-family:Inter,"Segoe UI",sans-serif;font-size:24px;font-weight:700;color:var(--c-teal);line-height:1.2;}
.stat span{display:block;margin-top:6px;font-size:13px;color:var(--t-weak);}

/* ---------- Section base ---------- */
.section{padding:96px 0;}
.section.alt{background:linear-gradient(180deg,rgba(10,16,32,.72),rgba(5,7,15,.2));border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{max-width:760px;margin-bottom:44px;}
.section-head h2{
  position:relative;
  font-size:clamp(24px,2.6vw,32px);
  line-height:1.35;
  font-weight:700;
  padding-left:16px;
}
.section-head h2::before{
  content:"";
  position:absolute;left:0;top:.28em;bottom:.28em;width:3px;border-radius:3px;
  background:linear-gradient(180deg,var(--c-teal),var(--c-purple));
}
.section-head p{margin-top:14px;color:var(--t-sub);font-size:15px;line-height:1.85;}
.eyebrow{
  font-size:12px;color:var(--c-purple);letter-spacing:.08em;text-transform:uppercase;margin-bottom:10px;
}

/* ---------- Bento ---------- */
.bento{
  display:grid;
  grid-template-columns:repeat(12,1fr);
  gap:var(--gap);
}
.card{
  position:relative;
  border-radius:var(--r-card);
  background:var(--bg-elev);
  border:1px solid var(--line);
  box-shadow:var(--shadow-card);
  overflow:hidden;
  transition:transform .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.card::before{
  content:"";
  position:absolute;left:0;right:0;top:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(37,208,192,.75),rgba(138,107,255,.7),transparent);
  opacity:0;transition:opacity .2s var(--ease);
}
.card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:inset 0 1px 0 rgba(255,255,255,.08),0 26px 48px -24px rgba(0,0,0,.95);}
.card:hover::before{opacity:1;}
.card-media{position:relative;overflow:hidden;}
.card-media img{width:100%;height:100%;transition:transform .4s var(--ease);}
.card:hover .card-media img{transform:scale(1.04);}
.card-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(5,7,15,.05) 0%,rgba(5,7,15,.72) 100%);
}
.card-body{padding:22px 24px 24px;position:relative;z-index:2;}
.card-body h3{font-size:20px;font-weight:700;line-height:1.45;}
.card-body p{margin-top:10px;font-size:14.5px;color:var(--t-sub);line-height:1.8;}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;
  border-radius:var(--r-pill);
  font-size:12px;
  color:var(--c-teal);
  background:rgba(37,208,192,.10);
  border:1px solid rgba(37,208,192,.28);
}
.badge.purple{color:var(--c-purple);background:rgba(138,107,255,.12);border-color:rgba(138,107,255,.3);}
.badge.gold{color:var(--c-gold);background:rgba(255,182,72,.12);border-color:rgba(255,182,72,.3);}
.meta-line{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:12.5px;color:var(--t-weak);}
.meta-line .dot{width:3px;height:3px;border-radius:50%;background:var(--t-weak);}
.bento-lg{grid-column:span 6;}
.bento-sm{grid-column:span 3;}
.bento-wide{grid-column:span 12;}
.bento-lg .card-media{height:250px;}
.bento-sm .card-body{padding:20px;}
.bento-sm .card-body h3{font-size:17px;}
.bento-sm .card-media{height:140px;}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;
  margin-top:16px;
  font-size:14px;color:var(--c-teal);
}
.link-arrow svg{width:16px;height:16px;stroke:currentColor;fill:none;stroke-width:1.5;transition:transform .2s var(--ease);}
.link-arrow:hover svg{transform:translateX(4px);}

/* ---------- Horizontal rail ---------- */
.rail-wrap{position:relative;}
.rail-wrap::before,.rail-wrap::after{
  content:"";position:absolute;top:0;bottom:0;width:56px;pointer-events:none;z-index:3;
}
.rail-wrap::before{left:0;background:linear-gradient(90deg,rgba(5,7,15,.95),transparent);}
.rail-wrap::after{right:0;background:linear-gradient(270deg,rgba(5,7,15,.95),transparent);}
.rail{
  display:flex;gap:20px;overflow-x:auto;scroll-snap-type:x mandatory;
  padding:6px 4px 20px;scrollbar-width:none;
}
.rail::-webkit-scrollbar{display:none;}
.rail-item{
  flex:0 0 300px;
  scroll-snap-align:start;
  border-radius:var(--r-card);
  background:var(--bg-panel);
  border:1px solid var(--line);
  overflow:hidden;
  transition:transform .2s var(--ease),border-color .2s var(--ease);
}
.rail-item:hover{transform:translateY(-4px);border-color:var(--line-strong);}
.rail-item img{width:100%;height:158px;}
.rail-item .rail-body{padding:18px 20px 22px;}
.rail-item h3{font-size:16.5px;font-weight:700;line-height:1.5;}
.rail-item p{margin-top:8px;font-size:13.5px;color:var(--t-sub);line-height:1.75;}
.rail-nav{display:flex;gap:10px;justify-content:flex-end;margin-bottom:14px;}
.rail-btn{
  width:40px;height:40px;border-radius:50%;
  display:grid;place-items:center;
  border:1px solid var(--line-strong);
  background:rgba(255,255,255,.04);
  transition:background .2s var(--ease),border-color .2s var(--ease);
}
.rail-btn svg{width:18px;height:18px;stroke:var(--t-main);fill:none;stroke-width:1.5;}
.rail-btn:hover{background:rgba(37,208,192,.12);border-color:rgba(37,208,192,.5);}

/* ---------- Split ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:52px;align-items:center;}
.split-media{
  border-radius:var(--r-img);
  overflow:hidden;
  border:1px solid var(--line-strong);
  box-shadow:0 30px 60px -32px rgba(0,0,0,.95);
}
.split-media img{width:100%;height:380px;}
.check-list{margin-top:22px;display:grid;gap:12px;}
.check-list li{display:flex;gap:12px;font-size:15px;color:var(--t-sub);line-height:1.75;}
.check-list .tick{
  flex-shrink:0;width:20px;height:20px;margin-top:7px;border-radius:6px;
  display:grid;place-items:center;
  background:rgba(37,208,192,.14);border:1px solid rgba(37,208,192,.4);
}
.check-list .tick svg{width:12px;height:12px;stroke:var(--c-teal);fill:none;stroke-width:2;}

/* ---------- Steps ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;counter-reset:step;}
.step{
  padding:26px 22px;
  border-radius:var(--r-card);
  background:rgba(17,24,48,.55);
  border:1px solid var(--line);
  transition:border-color .2s var(--ease),transform .2s var(--ease);
}
.step:hover{border-color:rgba(37,208,192,.42);transform:translateY(-4px);}
.step .num{
  font-family:Inter,sans-serif;font-size:13px;font-weight:700;letter-spacing:.08em;
  color:var(--c-purple);
}
.step h3{margin-top:12px;font-size:18px;font-weight:700;}
.step p{margin-top:10px;font-size:14px;color:var(--t-sub);line-height:1.8;}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:860px;margin:0 auto;}
.faq-item{
  border:1px solid var(--line);
  border-radius:var(--r-card);
  background:rgba(17,24,48,.5);
  margin-bottom:14px;
  overflow:hidden;
  transition:border-color .2s var(--ease),background .2s var(--ease);
}
.faq-item.open{border-color:rgba(37,208,192,.42);background:rgba(17,24,48,.78);}
.faq-q{
  width:100%;
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 24px;
  text-align:left;
  font-size:16.5px;font-weight:500;
  min-height:44px;
}
.faq-q:hover{color:var(--c-teal);}
.faq-icon{
  flex-shrink:0;width:26px;height:26px;border-radius:50%;
  position:relative;border:1px solid var(--line-strong);
  transition:transform .25s var(--ease),border-color .25s var(--ease);
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--c-teal);border-radius:2px;
  transform:translate(-50%,-50%);
}
.faq-icon::before{width:11px;height:1.5px;}
.faq-icon::after{width:1.5px;height:11px;}
.faq-item.open .faq-icon{transform:rotate(45deg);border-color:var(--c-teal);}
.faq-a{
  max-height:0;overflow:hidden;
  transition:max-height .3s var(--ease);
}
.faq-a p{padding:0 24px 22px;font-size:14.5px;color:var(--t-sub);line-height:1.9;}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;
  padding:76px 0;
  overflow:hidden;
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  background:
    radial-gradient(680px 300px at 18% 20%,rgba(138,107,255,.28),transparent 70%),
    radial-gradient(620px 280px at 82% 80%,rgba(37,208,192,.22),transparent 72%),
    var(--bg-panel);
}
.cta-inner{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:28px;
}
.cta-inner h2{font-size:clamp(23px,2.5vw,31px);font-weight:700;line-height:1.4;max-width:620px;}
.cta-inner p{margin-top:12px;color:var(--t-sub);font-size:15px;max-width:560px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;}

/* ---------- Footer ---------- */
.site-footer{
  background:var(--bg-deep);
  border-top:1px solid var(--line);
  padding:64px 0 26px;
  position:relative;z-index:2;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.2fr;
  gap:36px;
}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand p{font-size:14px;color:var(--t-sub);line-height:1.85;max-width:340px;}
.footer-proof{
  display:inline-flex;align-items:center;gap:8px;
  margin-top:16px;padding:8px 14px;border-radius:var(--r-pill);
  background:rgba(37,208,192,.08);border:1px solid rgba(37,208,192,.26);
  font-size:13px;color:var(--t-sub);
}
.footer-proof b{color:var(--c-teal);font-family:Inter,sans-serif;}
.footer-col h4{font-size:14px;font-weight:700;color:var(--t-main);margin-bottom:16px;letter-spacing:0;}
.footer-col a,.footer-col span{display:block;font-size:14px;color:var(--t-sub);padding:6px 0;transition:color .2s var(--ease);}
.footer-col a:hover{color:var(--c-teal);}
.footer-bottom{
  margin-top:44px;padding-top:22px;
  border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:12.5px;color:var(--t-weak);
}

/* ---------- Mobile panel toggle ---------- */
@media (max-width:1024px){
  .container{padding:0 24px;}
  .nav-search{display:none;}
  .burger{display:grid;}
  .nav-actions .btn-ghost{display:none;}
  .section{padding:72px 0;}
  .bento-lg{grid-column:span 12;}
  .bento-sm{grid-column:span 6;}
  .split{grid-template-columns:1fr;gap:32px;}
  .split-media img{height:300px;}
  .steps{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .cat-hero{min-height:320px;padding:56px 0 44px;}
  .hero-stats{grid-template-columns:repeat(2,1fr);}
}
@media (max-width:767px){
  body{font-size:15px;}
  .container{padding:0 20px;}
  .section{padding:56px 0;}
  .bento-sm{grid-column:span 12;}
  .bento-lg .card-media{height:200px;}
  .rail-item{flex:0 0 78%;}
  .steps{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  .cat-hero{padding:44px 0 36px;min-height:280px;}
  .cat-hero .hero-sub{font-size:15px;}
  .hero-stats{grid-template-columns:1fr;gap:12px;}
  .split-media img{height:220px;}
  .cta-band{padding:56px 0;}
  .cta-inner{flex-direction:column;align-items:flex-start;}
  .btn{width:100%;}
  .hero-actions .btn,.cta-actions .btn{width:100%;}
  .brand-sub{display:none;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important;}
}