/* roulang page: index */
:root{
  --ink-900:#05080F;
  --ink-800:#0A1120;
  --surface:#0E1729;
  --brand:#14E0B4;
  --brand-deep:#0BA98A;
  --heat:#FF7A2F;
  --violet:#6C7BFF;
  --t1:#EDF3FF;
  --t2:#A6B6D0;
  --t3:#6E7F9B;
  --line:rgba(255,255,255,0.08);
  --glass:rgba(255,255,255,0.045);
  --glass-line:rgba(255,255,255,0.09);
  --r-lg:18px;
  --r-md:12px;
  --r-img:16px;
  --sh:0 18px 48px rgba(3,7,18,0.55);
  --sh-hover:0 24px 60px rgba(3,7,18,0.70);
  --top-bg:rgba(246,248,252,0.88);
  --top-text:#0A1120;
  --top-sub:#34405A;
  --top-line:#E3E9F2;
  --font:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--ink-900);
  color:var(--t1);
  font-family:var(--font);
  font-size:16px;
  line-height:1.9;
  font-weight:400;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border-radius:var(--r-img);}
a{color:var(--brand);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--brand-deep);}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;color:var(--t1);font-weight:700;}
p{margin:0 0 1.1em;color:var(--t2);}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px;}
.grid-container{max-width:1244px;margin:0 auto;padding-left:32px;padding-right:32px;}
section{position:relative;}
.section{padding:96px 0;}
.section-tight{padding:72px 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;}
.section-head h2{font-size:30px;line-height:1.3;font-weight:700;letter-spacing:-0.01em;}
.section-head p{margin:10px 0 0;font-size:15px;color:var(--t3);max-width:640px;}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;letter-spacing:.08em;color:var(--brand);text-transform:uppercase;margin-bottom:14px;}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--brand);display:block;}
.lead-link{font-size:14px;font-weight:600;color:var(--brand);display:inline-flex;align-items:center;gap:6px;white-space:nowrap;}
.lead-link i{font-size:12px;transition:transform .2s ease;}
.lead-link:hover i{transform:translateX(4px);}

/* ===== Header ===== */
.site-header{
  position:sticky;top:0;z-index:80;
  background:var(--top-bg);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--top-line);
  box-shadow:0 2px 14px rgba(10,17,32,0.06);
}
.nav-wrap{display:flex;align-items:center;gap:20px;height:68px;}
.brand{display:flex;align-items:center;gap:10px;color:var(--top-text);font-size:17px;font-weight:800;letter-spacing:-0.01em;flex:0 0 auto;}
.brand:hover{color:var(--top-text);}
.brand-mark{width:30px;height:30px;border-radius:8px;background:linear-gradient(135deg,#14E0B4,#0BA98A);color:#04231C;display:grid;place-items:center;font-size:15px;font-weight:800;box-shadow:0 6px 18px rgba(20,224,180,.35);}
.main-nav{display:flex;align-items:center;gap:2px;margin-left:6px;}
.nav-link{position:relative;display:flex;align-items:center;height:68px;padding:0 13px;font-size:15px;font-weight:500;color:var(--top-sub);}
.nav-link:hover{color:var(--brand-deep);}
.nav-link::after{content:"";position:absolute;left:13px;right:13px;bottom:16px;height:2px;border-radius:2px;background:var(--brand);transform:scaleX(0);transform-origin:left center;transition:transform .2s ease;}
.nav-link:hover::after,.nav-link.is-active::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--top-text);font-weight:600;}
.nav-right{margin-left:auto;display:flex;align-items:center;gap:12px;}
.search-box{position:relative;width:220px;}
.search-box i{position:absolute;left:15px;top:50%;transform:translateY(-50%);color:#8794AB;font-size:13px;pointer-events:none;}
.search-box input{
  width:100%;height:40px;border-radius:999px;border:1px solid transparent;background:#E9EEF6;
  padding:0 16px 0 38px;font-size:14px;color:var(--top-text);transition:all .2s ease;
}
.search-box input::placeholder{color:#8794AB;}
.search-box input:focus{outline:none;background:#fff;border-color:var(--brand);box-shadow:0 0 0 3px rgba(20,224,180,.18);}
.nav-toggle{display:none;width:40px;height:40px;border-radius:10px;border:1px solid var(--top-line);background:#fff;color:var(--top-text);align-items:center;justify-content:center;font-size:16px;cursor:pointer;}
.nav-toggle:hover{background:#F2F5FA;}

/* buttons */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border:1px solid transparent;cursor:pointer;
  font-size:15px;font-weight:600;padding:13px 26px;border-radius:999px;
  transition:all .2s ease;white-space:nowrap;
}
.btn-primary{
  background:linear-gradient(135deg,#14E0B4,#0BA98A);color:#04231C;
  box-shadow:0 0 0 1px rgba(20,224,180,.45),0 10px 30px rgba(20,224,180,.26);
}
.btn-primary:hover{
  color:#04231C;transform:translateY(-2px);
  box-shadow:0 0 0 4px rgba(20,224,180,.16),0 14px 36px rgba(20,224,180,.38);
}
.btn-primary:active{transform:translateY(1px);filter:brightness(.94);}
.btn-ghost{
  background:transparent;color:var(--t1);border-color:var(--glass-line);
  -webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
}
.btn-ghost:hover{background:rgba(255,255,255,.07);color:#fff;border-color:rgba(255,255,255,.24);}
.btn-ghost:active{transform:translateY(1px);}
.btn-sm{padding:10px 20px;font-size:14px;}
.btn-dark{background:var(--top-text);color:#fff;}
.btn-dark:hover{color:#fff;background:#1B2740;}
.btn-block{width:100%;}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;transform:none;}

/* ===== Hero ===== */
.hero{position:relative;min-height:620px;display:flex;align-items:center;background:var(--ink-900);overflow:hidden;}
.hero-bg{position:absolute;inset:0;background-image:url('/assets/images/backpic/back-1.png');background-size:cover;background-position:center;opacity:.55;}
.hero-mask{position:absolute;inset:0;background:linear-gradient(100deg,rgba(5,8,15,.96) 0%,rgba(5,8,15,.80) 46%,rgba(5,8,15,.36) 100%);}
.hero-glow{position:absolute;width:720px;height:720px;left:-200px;top:-260px;background:radial-gradient(circle,rgba(20,224,180,.20),transparent 62%);pointer-events:none;}
.hero-grid{position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);background-size:72px 72px;opacity:.5;}
.hero-inner{position:relative;z-index:3;padding:88px 0 96px;max-width:640px;}
.hero h1{font-size:44px;line-height:1.18;font-weight:800;letter-spacing:-0.02em;margin-bottom:20px;}
.hero h1 em{font-style:normal;color:var(--brand);}
.hero-sub{font-size:17px;line-height:1.85;color:var(--t2);max-width:560px;margin-bottom:32px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:36px;}
.trust-pills{display:flex;flex-wrap:wrap;gap:12px;}
.pill{
  display:inline-flex;align-items:center;gap:8px;
  padding:9px 16px;border-radius:999px;font-size:13px;font-weight:500;color:var(--t1);
  background:var(--glass);border:1px solid var(--glass-line);
  -webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);
}
.pill i{color:var(--brand);font-size:12px;}
.scoreboard{
  position:absolute;right:32px;bottom:56px;z-index:4;
  display:flex;gap:28px;padding:22px 28px;border-radius:var(--r-lg);
  background:var(--glass);border:1px solid var(--glass-line);
  -webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);
  box-shadow:var(--sh);
}
.score-item{text-align:left;}
.score-num{display:block;font-size:32px;font-weight:700;line-height:1.1;color:var(--brand);font-variant-numeric:tabular-nums;}
.score-num.heat{color:var(--heat);}
.score-label{display:block;font-size:12px;color:var(--t3);margin-top:6px;letter-spacing:.04em;}

/* ===== Steps ===== */
.steps-row{display:flex;gap:24px;position:relative;}
.steps-row::before{
  content:"";position:absolute;left:24px;right:24px;top:36px;height:1px;
  background-image:linear-gradient(90deg,rgba(20,224,180,.6) 50%,transparent 0);
  background-size:14px 1px;background-repeat:repeat-x;
}
.step-card{
  position:relative;flex:1;padding:28px 26px 30px;border-radius:var(--r-lg);
  background:var(--glass);border:1px solid var(--glass-line);
  -webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.step-card:first-child{flex:1.5;}
.step-card:hover{transform:translateY(-4px);box-shadow:var(--sh-hover);border-color:rgba(255,255,255,.18);}
.step-no{
  width:40px;height:40px;border-radius:50%;display:grid;place-items:center;
  background:rgba(20,224,180,.10);border:1px solid rgba(20,224,180,.35);
  color:var(--brand);font-weight:700;font-size:15px;font-variant-numeric:tabular-nums;
  margin-bottom:20px;position:relative;z-index:2;
}
.step-card h3{font-size:19px;font-weight:600;margin-bottom:10px;}
.step-card p{font-size:14px;line-height:1.8;color:var(--t2);margin:0;}

/* ===== Prep list ===== */
.prep-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:28px;align-items:start;}
.prep-panel{
  padding:32px;border-radius:var(--r-lg);background:var(--surface);
  border:1px solid var(--line);box-shadow:var(--sh);
}
.check-list li{display:flex;gap:14px;padding:16px 0;border-bottom:1px solid var(--line);}
.check-list li:last-child{border-bottom:0;padding-bottom:0;}
.check-list i{color:var(--brand);font-size:14px;margin-top:6px;flex:0 0 auto;}
.check-list strong{display:block;font-size:15px;font-weight:600;color:var(--t1);margin-bottom:4px;}
.check-list span{font-size:14px;color:var(--t3);line-height:1.75;}
.prep-side{display:flex;flex-direction:column;gap:20px;}
.prep-side figure{margin:0;border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line);}
.prep-side img{width:100%;height:220px;object-fit:cover;border-radius:0;}
.prep-note{padding:22px 24px;border-radius:var(--r-lg);background:var(--glass);border:1px solid var(--glass-line);}
.prep-note h3{font-size:16px;font-weight:600;margin-bottom:8px;}
.prep-note p{font-size:14px;line-height:1.8;color:var(--t2);margin:0;}

/* ===== Rewards ===== */
.reward-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:start;}
.reward-card{
  border-radius:var(--r-lg);overflow:hidden;background:var(--glass);
  border:1px solid var(--glass-line);box-shadow:var(--sh);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.reward-card:hover{transform:translateY(-4px);box-shadow:var(--sh-hover);border-color:rgba(255,255,255,.18);}
.reward-card.tall{margin-top:32px;}
.reward-media{position:relative;}
.reward-media img{width:100%;height:180px;object-fit:cover;border-radius:0;}
.reward-badge{
  position:absolute;top:14px;right:14px;padding:5px 12px;border-radius:6px;font-size:12px;font-weight:600;
  background:rgba(10,17,32,.62);border:1px solid var(--glass-line);color:var(--t1);
  -webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);
}
.reward-body{padding:22px 24px 26px;}
.reward-body h3{font-size:18px;font-weight:600;margin-bottom:10px;}
.reward-body p{font-size:14px;line-height:1.8;color:var(--t2);margin-bottom:16px;}
.reward-num{font-size:26px;font-weight:700;color:var(--heat);font-variant-numeric:tabular-nums;line-height:1.2;display:block;}
.reward-cap{font-size:12px;color:var(--t3);letter-spacing:.04em;}

/* ===== Progress ===== */
.progress-card{
  display:grid;grid-template-columns:4fr 8fr;gap:40px;
  padding:40px;border-radius:var(--r-lg);
  background:linear-gradient(120deg,rgba(20,224,180,.06),rgba(255,255,255,.03) 45%,rgba(255,255,255,.02));
  border:1px solid var(--glass-line);
  -webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);
  box-shadow:var(--sh);
}
.progress-left h2{font-size:26px;font-weight:700;margin-bottom:16px;line-height:1.35;}
.progress-left p{font-size:14px;line-height:1.85;color:var(--t2);margin:0;}
.progress-right{padding-top:6px;}
.ladder{display:flex;gap:8px;margin-bottom:18px;}
.ladder-seg{flex:1;height:8px;border-radius:999px;background:rgba(255,255,255,.08);position:relative;}
.ladder-seg.done{background:linear-gradient(90deg,#14E0B4,#0BA98A);}
.ladder-seg.current{background:rgba(255,122,47,.22);}
.ladder-seg.current::after{
  content:"";position:absolute;left:0;top:50%;transform:translate(-2px,-50%);
  width:14px;height:14px;border-radius:50%;background:var(--heat);
  box-shadow:0 0 0 4px rgba(255,122,47,.20);animation:pulse 2s infinite;
}
@keyframes pulse{0%{box-shadow:0 0 0 4px rgba(255,122,47,.22);}70%{box-shadow:0 0 0 12px rgba(255,122,47,0);}100%{box-shadow:0 0 0 4px rgba(255,122,47,0);}}
.milestones{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;}
.milestone{padding:14px 16px;border-radius:var(--r-md);background:rgba(255,255,255,.04);border:1px solid var(--line);}
.milestone b{display:block;font-size:14px;font-weight:600;color:var(--t1);margin-bottom:4px;}
.milestone span{font-size:12px;color:var(--t3);font-variant-numeric:tabular-nums;}

/* ===== Evidence ===== */
.evidence-band{background:var(--ink-800);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.evidence-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.evidence-item{padding:26px 24px;border-radius:var(--r-lg);background:var(--glass);border:1px solid var(--glass-line);}
.evidence-item b{display:block;font-size:30px;font-weight:700;color:var(--brand);font-variant-numeric:tabular-nums;line-height:1.2;margin-bottom:8px;}
.evidence-item span{display:block;font-size:14px;color:var(--t2);line-height:1.7;}

/* ===== News / CMS ===== */
.badge{display:inline-flex;align-items:center;padding:4px 10px;border-radius:6px;font-size:12px;font-weight:600;line-height:1.6;}
.badge-violet{background:rgba(108,123,255,.16);border:1px solid rgba(108,123,255,.34);color:#B3BCFF;}
.badge-brand{background:rgba(20,224,180,.14);border:1px solid rgba(20,224,180,.32);color:var(--brand);}
.news-layout{display:grid;grid-template-columns:1fr;gap:24px;}
.news-feature{display:grid;grid-template-columns:1fr 1fr;gap:0;border-radius:var(--r-lg);overflow:hidden;background:var(--glass);border:1px solid var(--glass-line);box-shadow:var(--sh);transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;}
.news-feature:hover{transform:translateY(-4px);box-shadow:var(--sh-hover);border-color:rgba(255,255,255,.18);}
.news-feature-media{min-height:280px;overflow:hidden;}
.news-feature-media img{width:100%;height:100%;object-fit:cover;border-radius:0;min-height:280px;}
.news-feature-body{padding:32px;display:flex;flex-direction:column;justify-content:center;}
.news-feature-body h3{font-size:22px;font-weight:700;line-height:1.45;margin:14px 0 12px;color:var(--t1);}
.news-feature:hover .news-feature-body h3{color:var(--brand);}
.news-feature-body p{font-size:14px;line-height:1.8;color:var(--t2);margin-bottom:16px;}
.meta{font-size:13px;color:var(--t3);font-variant-numeric:tabular-nums;}
.news-mini-row{margin-top:24px;}
.news-mini{height:100%;border-radius:var(--r-lg);overflow:hidden;background:var(--glass);border:1px solid var(--glass-line);transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;}
.news-mini:hover{transform:translateY(-4px);box-shadow:var(--sh-hover);border-color:rgba(255,255,255,.18);}
.news-mini img{width:100%;height:150px;object-fit:cover;border-radius:0;}
.news-mini-body{padding:20px 22px 22px;}
.news-mini-body h3{font-size:16px;font-weight:600;line-height:1.6;margin:12px 0 8px;color:var(--t1);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-mini:hover h3{color:var(--brand);}
.news-mini-body p{font-size:13px;line-height:1.75;color:var(--t2);margin-bottom:12px;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;}
.empty-state{
  padding:56px 32px;text-align:center;border-radius:var(--r-lg);
  border:1px dashed rgba(255,255,255,.16);background:rgba(255,255,255,.02);
}
.empty-state i{font-size:26px;color:var(--t3);margin-bottom:16px;display:block;}
.empty-state p{color:var(--t3);font-size:15px;margin:0;}
.skeleton-row{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:24px;}
.skeleton{height:120px;border-radius:var(--r-md);background:linear-gradient(90deg,rgba(255,255,255,.03),rgba(255,255,255,.07),rgba(255,255,255,.03));}

/* ===== FAQ ===== */
.faq-list{max-width:880px;}
.faq-item{
  border-radius:14px;background:var(--glass);border:1px solid var(--glass-line);
  margin-bottom:12px;overflow:hidden;transition:border-color .2s ease,background .2s ease;
}
.faq-item[open]{background:rgba(255,255,255,.06);border-color:rgba(20,224,180,.28);}
.faq-item summary{
  list-style:none;cursor:pointer;padding:20px 24px 20px 28px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  font-size:16px;font-weight:600;color:var(--t1);position:relative;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::before{content:"";position:absolute;left:12px;top:24px;bottom:24px;width:3px;border-radius:2px;background:var(--brand);}
.faq-item summary:hover{color:var(--brand);}
.faq-icon{flex:0 0 auto;width:26px;height:26px;border-radius:50%;border:1px solid var(--glass-line);display:grid;place-items:center;font-size:12px;color:var(--t2);transition:transform .18s ease,color .18s ease,border-color .18s ease;}
.faq-item[open] .faq-icon{transform:rotate(180deg);color:var(--brand);border-color:rgba(20,224,180,.4);}
.faq-answer{padding:0 28px 22px;font-size:15px;line-height:1.85;color:var(--t2);}
.faq-answer p{margin:0;font-size:15px;color:var(--t2);}

/* ===== CTA band ===== */
.cta-band{
  position:relative;overflow:hidden;border-radius:24px;padding:52px;
  background:linear-gradient(120deg,rgba(20,224,180,.10),rgba(255,255,255,.03) 55%);
  border:1px solid var(--glass-line);
  -webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);
  display:flex;align-items:center;justify-content:space-between;gap:36px;
  box-shadow:var(--sh);
}
.cta-band::after{content:"";position:absolute;width:520px;height:520px;right:-160px;top:-220px;background:radial-gradient(circle,rgba(20,224,180,.22),transparent 62%);pointer-events:none;}
.cta-text{position:relative;z-index:2;max-width:620px;}
.cta-text h2{font-size:28px;font-weight:700;line-height:1.35;margin-bottom:12px;}
.cta-text p{font-size:15px;color:var(--t2);margin:0;}
.cta-actions{position:relative;z-index:2;display:flex;flex-direction:column;align-items:flex-start;gap:14px;}
.text-link{font-size:14px;font-weight:600;color:var(--t2);display:inline-flex;align-items:center;gap:8px;}
.text-link:hover{color:var(--brand);}

/* ===== Footer ===== */
.site-footer{background:var(--ink-900);margin-top:96px;position:relative;}
.site-footer::before{content:"";position:absolute;top:0;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,rgba(20,224,180,.55),transparent);}
.footer-top{padding:72px 0 48px;display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:40px;}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:800;color:var(--t1);margin-bottom:16px;}
.footer-brand .brand-mark{width:30px;height:30px;font-size:15px;}
.footer-col h4{font-size:14px;font-weight:600;color:var(--t1);margin-bottom:18px;letter-spacing:.04em;}
.footer-col p{font-size:14px;line-height:1.85;color:var(--t3);margin:0;max-width:320px;}
.footer-col li{margin-bottom:12px;}
.footer-col li a{font-size:14px;color:var(--t2);}
.footer-col li a:hover{color:var(--brand);}
.footer-bottom{
  border-top:1px solid var(--line);padding:24px 0 32px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
}
.footer-bottom span{font-size:13px;color:var(--t3);}

/* ===== Mobile drawer ===== */
.drawer-mask{position:fixed;inset:0;background:rgba(5,8,15,.6);opacity:0;visibility:hidden;transition:opacity .25s ease,visibility .25s ease;z-index:90;}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.mobile-drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(320px,86vw);z-index:95;
  background:var(--ink-800);border-left:1px solid var(--line);
  transform:translateX(102%);transition:transform .28s ease;
  padding:26px 24px;overflow-y:auto;
}
.mobile-drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:26px;}
.drawer-title{font-size:15px;font-weight:700;color:var(--t1);}
.drawer-close{width:36px;height:36px;border-radius:10px;border:1px solid var(--line);background:rgba(255,255,255,.05);color:var(--t1);cursor:pointer;font-size:15px;}
.drawer-close:hover{background:rgba(255,255,255,.1);}
.drawer-nav li{margin-bottom:8px;}
.drawer-nav a{display:block;padding:13px 16px;border-radius:var(--r-md);font-size:15px;color:var(--t2);background:rgba(255,255,255,.03);border:1px solid transparent;}
.drawer-nav a:hover,.drawer-nav a.is-active{color:var(--brand);background:rgba(20,224,180,.08);border-color:rgba(20,224,180,.26);}
.drawer-cta{margin-top:22px;}

/* ===== Responsive ===== */
@media screen and (max-width:1023px){
  .main-nav,.search-box{display:none;}
  .nav-toggle{display:flex;}
  .section{padding:72px 0;}
  .hero-inner{padding:72px 0 84px;max-width:100%;}
  .hero h1{font-size:34px;}
  .scoreboard{position:static;margin-top:36px;justify-content:flex-start;}
  .hero{min-height:auto;}
  .steps-row{flex-direction:column;}
  .steps-row::before{left:19px;top:20px;bottom:20px;width:1px;height:auto;right:auto;background-image:linear-gradient(180deg,rgba(20,224,180,.6) 50%,transparent 0);background-size:1px 14px;}
  .step-card:first-child{flex:1;}
  .prep-grid{grid-template-columns:1fr;}
  .reward-grid{grid-template-columns:repeat(2,1fr);}
  .reward-card.tall{margin-top:0;}
  .progress-card{grid-template-columns:1fr;gap:28px;padding:30px;}
  .evidence-grid{grid-template-columns:repeat(2,1fr);}
  .news-feature{grid-template-columns:1fr;}
  .news-feature-media{min-height:220px;}
  .news-feature-media img{min-height:220px;height:220px;}
  .footer-top{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:40px;}
}
@media screen and (max-width:640px){
  body{font-size:15px;line-height:1.85;}
  .grid-container{padding-left:20px;padding-right:20px;}
  .section{padding:56px 0;}
  .section-head{flex-direction:column;align-items:flex-start;gap:14px;margin-bottom:28px;}
  .section-head h2{font-size:24px;}
  .hero h1{font-size:30px;line-height:1.25;}
  .hero-sub{font-size:15px;}
  .hero-actions{flex-direction:column;align-items:stretch;}
  .hero-actions .btn{width:100%;}
  .scoreboard{gap:20px;padding:18px 20px;flex-wrap:wrap;}
  .score-num{font-size:26px;}
  .reward-grid{grid-template-columns:1fr;}
  .milestones{grid-template-columns:repeat(2,1fr);}
  .evidence-grid{grid-template-columns:1fr;}
  .skeleton-row{grid-template-columns:1fr;}
  .footer-top{grid-template-columns:1fr;padding:52px 0 36px;}
  .cta-band{padding:32px 24px;border-radius:18px;}
  .cta-text h2{font-size:22px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
  .faq-item summary{font-size:15px;padding:18px 20px 18px 26px;}
  .faq-answer{padding:0 22px 20px;}
  .news-feature-body{padding:24px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}

/* roulang page: category1 */
:root{
  --ink-900:#05080F;
  --ink-800:#0A1120;
  --surface:#0E1729;
  --brand:#14E0B4;
  --brand-deep:#0BA98A;
  --heat:#FF7A2F;
  --violet:#6C7BFF;
  --t1:#EDF3FF;
  --t2:#A6B6D0;
  --t3:#6E7F9B;
  --line:rgba(255,255,255,.08);
  --glass:rgba(255,255,255,.045);
  --glass-line:rgba(255,255,255,.09);
  --r-lg:18px;
  --r-md:12px;
  --r-sm:8px;
  --sh:0 18px 48px rgba(3,7,18,.55);
  --sh-hover:0 24px 60px rgba(3,7,18,.70);
  --sp-1:8px; --sp-2:16px; --sp-3:24px; --sp-4:32px; --sp-5:48px; --sp-6:64px; --sp-7:96px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--ink-900);
  color:var(--t1);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;}
a{color:var(--brand);text-decoration:none;transition:color .2s ease,opacity .2s ease;}
a:hover,a:focus{color:var(--brand);}
ul,ol{margin:0;padding:0;list-style:none;}
p{margin:0 0 1.1em;}
h1,h2,h3,h4{margin:0 0 .6em;color:var(--t1);font-weight:700;}
h1{font-size:44px;line-height:1.18;letter-spacing:-.02em;font-weight:800;}
h2{font-size:30px;line-height:1.30;}
h3{font-size:20px;line-height:1.40;font-weight:600;}
h4{font-size:16px;line-height:1.5;font-weight:600;}
button,input{font-family:inherit;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px;}
.grid-container{max-width:1180px;width:100%;margin:0 auto;padding-left:32px;padding-right:32px;}
.num{font-variant-numeric:tabular-nums;font-weight:700;}

/* ============ 顶栏（浅色玻璃） ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(246,248,252,.88);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  border-bottom:1px solid #E3E9F2;
  box-shadow:0 2px 14px rgba(10,17,32,.06);
}
.header-inner{
  display:flex;align-items:center;gap:24px;
  height:68px;
}
.brand{display:flex;align-items:center;gap:10px;flex:none;}
.brand-mark{
  width:28px;height:28px;border-radius:8px;
  background:linear-gradient(135deg,var(--brand),var(--brand-deep));
  color:#04231C;font-weight:800;font-size:15px;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 6px 18px rgba(20,224,180,.30);
}
.brand-name{
  font-size:16px;font-weight:700;color:#0A1120;letter-spacing:.01em;white-space:nowrap;
}
.main-nav{display:flex;align-items:center;gap:26px;margin-left:12px;flex:1 1 auto;}
.main-nav .nav-link{
  position:relative;
  font-size:15px;font-weight:500;color:#34405A;
  padding:6px 2px;
  white-space:nowrap;
}
.main-nav .nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;
  background:linear-gradient(90deg,var(--brand),var(--brand-deep));
  border-radius:2px;transform:scaleX(0);transform-origin:left center;
  transition:transform .2s ease;
}
.main-nav .nav-link:hover{color:var(--brand-deep);}
.main-nav .nav-link:hover::after{transform:scaleX(1);}
.main-nav .nav-link.is-active{color:#0A1120;font-weight:600;}
.main-nav .nav-link.is-active::after{transform:scaleX(1);}
.header-tools{display:flex;align-items:center;gap:14px;flex:none;}
.search-box{
  display:flex;align-items:center;gap:8px;
  width:220px;height:40px;padding:0 14px;
  background:#E9EEF6;border:1px solid transparent;border-radius:999px;
  transition:background .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.search-box i{color:#5B6A88;font-size:13px;}
.search-box input{
  border:0;background:transparent;outline:none;width:100%;
  font-size:14px;color:#0A1120;
}
.search-box input::placeholder{color:#7C8AA5;}
.search-box:focus-within{
  background:#fff;border-color:var(--brand);
  box-shadow:0 0 0 3px rgba(20,224,180,.22);
}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;
  border:1px solid #DCE4F0;background:#fff;cursor:pointer;
  flex-direction:column;align-items:center;justify-content:center;gap:5px;
}
.nav-toggle span{display:block;width:18px;height:2px;background:#0A1120;border-radius:2px;transition:transform .2s ease,opacity .2s ease;}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

/* ============ 按钮系统 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:15px;font-weight:600;line-height:1;
  padding:14px 26px;border-radius:999px;border:1px solid transparent;
  cursor:pointer;transition:transform .2s ease,box-shadow .2s ease,background .2s ease,border-color .2s ease,color .2s ease;
  text-align:center;
}
.btn-primary{
  background:linear-gradient(135deg,#14E0B4,#0BA98A);
  color:#04231C;
  box-shadow:0 0 0 1px rgba(20,224,180,.45),0 10px 30px rgba(20,224,180,.26);
}
.btn-primary:hover{
  color:#04231C;transform:translateY(-2px);
  box-shadow:0 0 0 4px rgba(20,224,180,.16),0 14px 36px rgba(20,224,180,.38);
}
.btn-primary:active{transform:translateY(1px);filter:brightness(.94);}
.btn-ghost{
  background:transparent;border:1px solid var(--glass-line);color:var(--t1);
}
.btn-ghost:hover{background:rgba(255,255,255,.07);color:var(--t1);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(1px);}
.btn-sm{padding:10px 20px;font-size:14px;}
.btn-link{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--brand);font-size:14px;font-weight:600;padding:0;
  background:none;border:0;cursor:pointer;
}
.btn-link:hover{color:var(--brand-deep);}
.is-disabled,.btn[disabled]{opacity:.45;cursor:not-allowed;transform:none !important;box-shadow:none !important;}

/* ============ 通用板块 ============ */
.section{padding:var(--sp-7) 0;}
.section-alt{background:var(--ink-800);}
.section-head{max-width:760px;margin-bottom:var(--sp-5);}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:.08em;
  color:var(--brand);text-transform:uppercase;
  background:rgba(20,224,180,.10);
  border:1px solid rgba(20,224,180,.28);
  padding:6px 14px;border-radius:999px;margin-bottom:18px;
}
.section-head p{color:var(--t2);font-size:16px;margin-bottom:0;}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;font-weight:600;line-height:1;
  padding:6px 10px;border-radius:6px;
  background:rgba(108,123,255,.14);
  border:1px solid rgba(108,123,255,.34);
  color:#B7BFFF;
}
.badge-brand{background:rgba(20,224,180,.12);border-color:rgba(20,224,180,.32);color:#7CF1DA;}
.badge-heat{background:rgba(255,122,47,.13);border-color:rgba(255,122,47,.34);color:#FFB586;}

/* ============ 面包屑 ============ */
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--t3);margin-bottom:22px;
}
.breadcrumb a{color:var(--t3);}
.breadcrumb a:hover{color:var(--brand);}
.breadcrumb .sep{opacity:.6;}
.breadcrumb .current{color:var(--brand);}

/* ============ 页面头图 ============ */
.page-hero{
  position:relative;
  padding:64px 0 72px;
  background:var(--ink-900);
  overflow:hidden;
  border-bottom:1px solid var(--line);
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-1.png");
  background-size:cover;background-position:center;
  opacity:.30;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(5,8,15,.94) 0%,rgba(5,8,15,.72) 46%,rgba(5,8,15,.42) 100%),
             radial-gradient(720px 420px at 8% 6%,rgba(20,224,180,.18),transparent 62%);
}
.page-hero .hero-inner{position:relative;z-index:2;max-width:840px;}
.page-hero h1{max-width:760px;}
.hero-lead{
  color:var(--t2);font-size:17px;line-height:1.9;max-width:700px;margin:18px 0 28px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:30px;}
.trust-pills{display:flex;flex-wrap:wrap;gap:12px;}
.trust-pills li{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:500;color:var(--t2);
  background:var(--glass);border:1px solid var(--glass-line);
  border-radius:999px;padding:8px 16px;
  -webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);
}
.trust-pills i{color:var(--brand);font-size:12px;}

/* ============ 数据条 ============ */
.stat-strip{
  display:grid;grid-template-columns:repeat(4,1fr);gap:1px;
  background:var(--line);border:1px solid var(--line);
  border-radius:var(--r-lg);overflow:hidden;margin-top:44px;
}
.stat-strip div{background:rgba(10,17,32,.82);padding:20px 22px;}
.stat-strip .stat-num{
  font-size:26px;font-weight:800;color:var(--brand);
  font-variant-numeric:tabular-nums;line-height:1.2;
}
.stat-strip .stat-label{font-size:13px;color:var(--t3);margin-top:6px;}

/* ============ 步骤长条列表（左图右文） ============ */
.step-list{border-top:1px solid var(--line);}
.step-row{
  display:grid;grid-template-columns:40% 1fr;gap:36px;
  padding:38px 0;border-bottom:1px solid var(--line);
  transition:background .25s ease;
}
.step-row:hover{background:rgba(255,255,255,.02);}
.step-figure{
  position:relative;border-radius:16px;overflow:hidden;
  border:1px solid var(--glass-line);
  background:#0E1729;box-shadow:var(--sh);
}
.step-figure img{
  width:100%;aspect-ratio:16/9;object-fit:cover;
  transition:transform .5s ease;
}
.step-row:hover .step-figure img{transform:scale(1.03);}
.step-figure .step-tag{
  position:absolute;top:12px;left:12px;
  background:rgba(5,8,15,.72);
  border:1px solid var(--glass-line);
  border-radius:6px;padding:5px 10px;
  font-size:12px;font-weight:700;color:var(--brand);
  font-variant-numeric:tabular-nums;
  -webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);
}
.step-body h3{margin-bottom:10px;}
.step-body p{color:var(--t2);font-size:15.5px;margin-bottom:14px;}
.tick-list li{
  position:relative;padding-left:18px;color:var(--t2);
  font-size:14.5px;line-height:1.85;margin-bottom:6px;
}
.tick-list li::before{
  content:"";position:absolute;left:0;top:.72em;
  width:6px;height:6px;border-radius:2px;background:var(--brand);
}
.step-note{
  display:inline-flex;align-items:center;gap:8px;margin-top:8px;
  font-size:13px;color:var(--heat);
  background:rgba(255,122,47,.10);
  border:1px solid rgba(255,122,47,.28);
  border-radius:8px;padding:6px 12px;
}

/* ============ 核对要点卡（不等高网格） ============ */
.check-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.check-card{
  background:var(--glass);border:1px solid var(--glass-line);
  border-radius:var(--r-lg);padding:28px 26px;
  -webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);
  box-shadow:var(--sh);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.check-card:hover{transform:translateY(-4px);box-shadow:var(--sh-hover);border-color:rgba(255,255,255,.18);}
.check-card.tall{padding-bottom:44px;}
.check-icon{
  width:44px;height:44px;border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  background:rgba(20,224,180,.12);
  border:1px solid rgba(20,224,180,.30);
  color:var(--brand);font-size:17px;margin-bottom:18px;
}
.check-card h3{font-size:18px;margin-bottom:10px;}
.check-card p{color:var(--t2);font-size:14.5px;margin-bottom:0;}
.check-card .num-line{
  font-size:13px;color:var(--t3);margin-top:16px;
  padding-top:14px;border-top:1px solid var(--line);
}
.check-card .num-line b{color:var(--heat);font-variant-numeric:tabular-nums;}

/* ============ FAQ ============ */
.faq-wrap{max-width:880px;}
.faq-accordion{margin:0;border:0;background:transparent;}
.faq-accordion .accordion-item{
  border:1px solid var(--glass-line) !important;
  background:var(--glass) !important;
  border-radius:14px;overflow:hidden;margin-bottom:12px;
  transition:border-color .2s ease,background .2s ease;
}
.faq-accordion .accordion-item:hover{border-color:rgba(255,255,255,.18) !important;}
.faq-accordion .accordion-title{
  position:relative;
  display:block;padding:18px 54px 18px 20px;
  font-size:16px;font-weight:600;color:var(--t1);
  background:transparent;border:0;
  border-left:3px solid var(--brand);
}
.faq-accordion .accordion-title:hover,
.faq-accordion .accordion-title:focus{background:rgba(255,255,255,.04);color:var(--t1);}
.faq-accordion .accordion-title::before{
  content:"+";position:absolute;right:20px;top:50%;transform:translateY(-50%);
  font-size:20px;font-weight:400;color:var(--brand);line-height:1;
  transition:transform .18s ease;margin:0;float:none;
}
.faq-accordion .accordion-item.is-active .accordion-title::before{transform:translateY(-50%) rotate(45deg);}
.faq-accordion .accordion-content{
  background:transparent !important;border:0 !important;
  color:var(--t2);font-size:15px;line-height:1.85;
  padding:0 20px 20px 20px;
}

/* ============ 安全提醒 ============ */
.notice-panel{
  display:grid;grid-template-columns:4fr 8fr;gap:36px;
  background:linear-gradient(135deg,rgba(20,224,180,.10),rgba(14,23,41,.92) 56%);
  border:1px solid var(--glass-line);
  border-radius:var(--r-lg);padding:36px;
  box-shadow:var(--sh);
}
.notice-panel h2{font-size:24px;margin-bottom:12px;}
.notice-panel .notice-side p{color:var(--t2);font-size:14.5px;margin-bottom:0;}
.notice-list li{
  display:flex;gap:14px;padding:16px 0;border-bottom:1px dashed var(--line);
  color:var(--t2);font-size:15px;
}
.notice-list li:last-child{border-bottom:0;padding-bottom:0;}
.notice-list i{color:var(--heat);margin-top:6px;font-size:14px;}

/* ============ CTA 条 ============ */
.cta-band{
  position:relative;overflow:hidden;
  background:var(--ink-800);
  border:1px solid var(--glass-line);
  border-radius:var(--r-lg);
  padding:40px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  box-shadow:var(--sh);
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background:radial-gradient(520px 260px at 12% 120%,rgba(20,224,180,.20),transparent 68%);
  pointer-events:none;
}
.cta-band > *{position:relative;z-index:2;}
.cta-band h2{font-size:26px;margin-bottom:8px;}
.cta-band p{color:var(--t2);font-size:15px;margin-bottom:0;}
.cta-actions{display:flex;flex-wrap:wrap;align-items:center;gap:16px;flex:none;}

/* ============ 返回入口 ============ */
.back-row{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:20px;
  border-top:1px solid var(--line);padding-top:28px;
}
.back-links{display:flex;flex-wrap:wrap;gap:12px;}
.chip-link{
  display:inline-flex;align-items:center;gap:8px;
  font-size:14px;color:var(--t2);
  border:1px solid var(--glass-line);border-radius:999px;
  padding:9px 18px;background:var(--glass);
  transition:border-color .2s ease,color .2s ease,transform .2s ease;
}
.chip-link:hover{color:var(--brand);border-color:rgba(20,224,180,.42);transform:translateY(-2px);}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--ink-900);
  border-top:1px solid transparent;
  border-image:linear-gradient(90deg,transparent,rgba(20,224,180,.55),transparent) 1;
  padding:64px 0 28px;
  margin-top:var(--sp-7);
}
.footer-top{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1.4fr;gap:36px;
  padding-bottom:40px;border-bottom:1px solid var(--line);
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-mark{background:linear-gradient(135deg,var(--brand),var(--brand-deep));}
.footer-brand span:last-child{font-size:16px;font-weight:700;color:var(--t1);}
.footer-col p{color:var(--t2);font-size:14px;line-height:1.85;margin-bottom:0;}
.footer-col h4{font-size:15px;color:var(--t1);margin-bottom:16px;}
.footer-col ul li{margin-bottom:10px;}
.footer-col ul a{color:var(--t2);font-size:14px;}
.footer-col ul a:hover{color:var(--brand);}
.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
  padding-top:24px;color:var(--t3);font-size:13px;
}

/* ============ 响应式 ============ */
@media screen and (max-width:1023px){
  h1{font-size:34px;}
  h2{font-size:26px;}
  .section{padding:64px 0;}
  .step-row{grid-template-columns:1fr;gap:20px;padding:30px 0;}
  .check-grid{grid-template-columns:repeat(2,1fr);}
  .stat-strip{grid-template-columns:repeat(2,1fr);}
  .notice-panel{grid-template-columns:1fr;gap:20px;padding:28px;}
  .footer-top{grid-template-columns:1fr 1fr;gap:28px;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:30px;}
}
@media screen and (max-width:860px){
  .header-inner{gap:14px;height:60px;}
  .search-box{display:none;}
  .nav-toggle{display:flex;}
  .main-nav{
    position:fixed;top:60px;left:0;right:0;
    flex-direction:column;align-items:flex-start;gap:0;
    background:rgba(5,8,15,.97);
    -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
    border-bottom:1px solid var(--line);
    padding:8px 20px 20px;
    transform:translateY(-12px);opacity:0;visibility:hidden;pointer-events:none;
    transition:opacity .22s ease,transform .22s ease,visibility .22s ease;
    max-height:calc(100vh - 60px);overflow-y:auto;
  }
  .main-nav.is-open{transform:translateY(0);opacity:1;visibility:visible;pointer-events:auto;}
  .main-nav .nav-link{
    width:100%;padding:15px 0;font-size:16px;color:var(--t1);
    border-bottom:1px solid var(--line);
  }
  .main-nav .nav-link::after{display:none;}
  .main-nav .nav-link.is-active{color:var(--brand);}
  .page-hero{padding:44px 0 52px;}
}
@media screen and (max-width:639px){
  .grid-container{padding-left:20px;padding-right:20px;}
  h1{font-size:30px;line-height:1.25;}
  h2{font-size:22px;}
  h3{font-size:18px;}
  .section{padding:56px 0;}
  .check-grid{grid-template-columns:1fr;}
  .stat-strip{grid-template-columns:1fr 1fr;}
  .stat-strip div{padding:16px;}
  .footer-top{grid-template-columns:1fr;}
  .cta-band{padding:24px;border-radius:16px;}
  .hero-actions .btn{width:100%;}
  .back-row{flex-direction:column;align-items:flex-start;}
}

/* roulang page: article */
:root{
  --ink-900:#05080F;
  --ink-800:#0A1120;
  --surface:#0E1729;
  --brand:#14E0B4;
  --brand-deep:#0BA98A;
  --heat:#FF7A2F;
  --violet:#6C7BFF;
  --t1:#EDF3FF;
  --t2:#A6B6D0;
  --t3:#6E7F9B;
  --line:rgba(255,255,255,.08);
  --glass:rgba(255,255,255,.045);
  --glass-line:rgba(255,255,255,.09);
  --r-card:18px;
  --r-sm:12px;
  --r-img:16px;
  --sh-card:0 18px 48px rgba(3,7,18,.55);
  --sh-hover:0 24px 60px rgba(3,7,18,.70);
  --nav-h:68px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--ink-900);
  color:var(--t2);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;}
button,input{font-family:inherit;font-size:inherit;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;padding:0;}
ul,ol{list-style:none;}
table{border-collapse:collapse;border-spacing:0;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px;}
::selection{background:rgba(20,224,180,.3);color:#fff;}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--brand);color:#04231C;padding:10px 18px;border-radius:0 0 10px 0;z-index:200;font-weight:600;}
.skip-link:focus{left:0;}

.grid-container{max-width:1180px;margin:0 auto;padding:0 32px;}

/* ===== 顶栏 ===== */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(246,248,252,.88);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  border-bottom:1px solid #E3E9F2;
  box-shadow:0 2px 14px rgba(10,17,32,.06);
}
.header-inner{display:flex;align-items:center;gap:26px;height:var(--nav-h);}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:28px;height:28px;border-radius:8px;display:grid;place-items:center;
  background:linear-gradient(135deg,#14E0B4,#0BA98A);
  color:#04231C;font-weight:800;font-size:15px;line-height:1;
}
.brand-text{color:#0A1120;font-weight:700;font-size:17px;letter-spacing:-.01em;white-space:nowrap;}
.main-nav{display:flex;align-items:center;gap:4px;flex:1;min-width:0;}
.nav-link{
  position:relative;display:inline-block;padding:8px 12px;font-size:15px;font-weight:500;
  color:#34405A;border-radius:8px;white-space:nowrap;
  transition:color .2s ease,background .2s ease;
}
.nav-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;border-radius:2px;
  background:var(--brand);transform:scaleX(0);transform-origin:left;
  transition:transform .2s ease;
}
.nav-link:hover,.nav-link:focus-visible{color:var(--brand-deep);}
.nav-link:hover::after,.nav-link:focus-visible::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--brand-deep);font-weight:600;}
.nav-link.is-active::after{transform:scaleX(1);}
.header-tools{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.nav-search{
  display:flex;align-items:center;gap:8px;width:220px;height:40px;padding:0 14px;
  border-radius:999px;background:#E9EEF6;border:1px solid transparent;
  transition:background .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.nav-search i{color:#7C8AA5;font-size:14px;}
.nav-search input{width:100%;border:0;background:transparent;outline:none;color:#0A1120;font-size:14px;}
.nav-search input::placeholder{color:#8794AC;}
.nav-search:focus-within{background:#fff;border-color:var(--brand);box-shadow:0 0 0 3px rgba(20,224,180,.22);}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border:1px solid transparent;border-radius:999px;font-weight:600;cursor:pointer;
  transition:transform .22s ease,box-shadow .22s ease,background .22s ease,color .22s ease,border-color .22s ease,filter .22s ease;
  white-space:nowrap;
}
.btn-sm{height:40px;padding:0 20px;font-size:14px;}
.btn-md{height:48px;padding:0 28px;font-size:15px;}
.btn-primary{
  background:linear-gradient(135deg,#14E0B4,#0BA98A);
  color:#04231C;
  box-shadow:0 0 0 1px rgba(20,224,180,.45),0 10px 30px rgba(20,224,180,.26);
}
.btn-primary:hover{transform:translateY(-2px);color:#04231C;box-shadow:0 0 0 4px rgba(20,224,180,.16),0 14px 36px rgba(20,224,180,.38);}
.btn-primary:active{transform:translateY(-1px);filter:brightness(.94);}
.btn-ghost{background:transparent;border-color:var(--glass-line);color:var(--t1);}
.btn-ghost:hover{background:rgba(255,255,255,.07);border-color:rgba(255,255,255,.2);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(-1px);}
.btn-block{width:100%;height:46px;padding:0 20px;font-size:15px;}
.nav-toggle{
  display:none;width:40px;height:40px;border-radius:10px;border:1px solid #DCE3EE;
  background:#fff;color:#0A1120;align-items:center;justify-content:center;cursor:pointer;
  transition:background .2s ease,border-color .2s ease;
}
.nav-toggle:hover{background:#E9EEF6;border-color:#C9D4E4;}

/* ===== 移动抽屉 ===== */
.drawer-mask{
  position:fixed;inset:0;background:rgba(5,8,15,.62);z-index:85;
  opacity:0;pointer-events:none;transition:opacity .3s ease;
}
.drawer-mask.is-open{opacity:1;pointer-events:auto;}
.mobile-drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(86vw,340px);z-index:90;
  background:var(--ink-800);border-left:1px solid var(--glass-line);
  transform:translateX(105%);transition:transform .32s cubic-bezier(.4,0,.2,1);
  padding:20px;overflow-y:auto;display:flex;flex-direction:column;gap:14px;
}
.mobile-drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:14px;border-bottom:1px solid var(--line);}
.drawer-head .brand-text{color:var(--t1);}
.drawer-close{
  width:36px;height:36px;border-radius:10px;border:1px solid var(--glass-line);
  background:transparent;color:var(--t1);cursor:pointer;display:grid;place-items:center;
  transition:background .2s ease;
}
.drawer-close:hover{background:rgba(255,255,255,.08);}
.drawer-nav{display:flex;flex-direction:column;gap:4px;}
.drawer-nav a{
  display:block;padding:13px 14px;border-radius:12px;color:var(--t1);font-size:15px;
  border:1px solid transparent;transition:background .2s ease,border-color .2s ease,color .2s ease;
}
.drawer-nav a:hover{background:rgba(255,255,255,.06);border-color:var(--glass-line);color:var(--brand);}

/* ===== 文章头部 ===== */
.article-hero{
  position:relative;overflow:hidden;padding:52px 0 46px;
  background-image:
    linear-gradient(100deg,rgba(5,8,15,.95) 0%,rgba(5,8,15,.74) 54%,rgba(5,8,15,.95) 100%),
    url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--line);
}
.hero-glow{
  position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(620px 320px at 10% 0%,rgba(20,224,180,.18),transparent 70%);
}
.article-hero .grid-container{position:relative;z-index:1;}
.breadcrumb{display:flex;align-items:center;flex-wrap:wrap;gap:8px;font-size:13px;color:var(--t3);margin-bottom:18px;}
.breadcrumb a{color:var(--t3);transition:color .2s ease;}
.breadcrumb a:hover{color:var(--brand);}
.crumb-sep{color:rgba(255,255,255,.24);}
.crumb-current{color:var(--brand);}
.article-title{
  color:var(--t1);font-size:44px;line-height:1.18;font-weight:800;letter-spacing:-.02em;
  max-width:900px;margin-bottom:20px;
}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px 18px;font-size:13px;color:var(--t3);}
.meta-item{display:inline-flex;align-items:center;gap:6px;}
.meta-item i{font-size:13px;color:var(--t3);}
.badge{
  display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;
  border-radius:999px;font-size:12px;font-weight:600;letter-spacing:.02em;
}
.badge-violet{background:rgba(108,123,255,.16);color:#A6B2FF;border:1px solid rgba(108,123,255,.34);}

/* ===== 正文布局 ===== */
.article-wrap{padding:56px 0 0;}
.article-grid{align-items:flex-start;}
.article-main{padding-bottom:24px;}
.article-body{
  max-width:780px;font-size:17px;line-height:1.95;color:var(--t2);
  word-break:break-word;
}
.article-body > *:first-child{margin-top:0 !important;}
.article-body p{margin:0 0 1.1em;}
.article-body h2{
  position:relative;color:var(--t1);font-size:26px;line-height:1.35;font-weight:700;
  margin:46px 0 18px;padding-left:16px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.3em;width:4px;height:1em;border-radius:2px;
  background:linear-gradient(180deg,var(--brand),var(--brand-deep));
}
.article-body h3{color:var(--t1);font-size:20px;font-weight:600;line-height:1.5;margin:32px 0 12px;}
.article-body h4{color:var(--t1);font-size:17px;font-weight:600;margin:24px 0 10px;}
.article-body a{color:var(--brand);border-bottom:1px solid rgba(20,224,180,.35);transition:color .2s ease,border-color .2s ease;}
.article-body a:hover{color:#5CF3D2;border-bottom-color:rgba(92,243,210,.7);}
.article-body strong{color:var(--t1);font-weight:600;}
.article-body ul{margin:0 0 1.2em;}
.article-body ul > li{position:relative;padding-left:22px;margin-bottom:.5em;}
.article-body ul > li::before{
  content:"";position:absolute;left:2px;top:.72em;width:8px;height:8px;border-radius:2px;
  background:var(--brand);opacity:.85;
}
.article-body ol{margin:0 0 1.2em;padding-left:24px;list-style:decimal;}
.article-body ol > li{margin-bottom:.5em;padding-left:4px;}
.article-body ol > li::marker{color:var(--brand);font-weight:700;}
.article-body blockquote{
  margin:26px 0;padding:20px 22px;background:var(--glass);
  border-left:3px solid var(--brand);border-radius:0 14px 14px 0;color:var(--t1);
  border-top:1px solid var(--glass-line);border-right:1px solid var(--glass-line);border-bottom:1px solid var(--glass-line);
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{border-radius:14px;margin:26px auto;}
.article-body figure{margin:26px 0;}
.article-body figcaption{font-size:13px;color:var(--t3);text-align:center;margin-top:10px;}
.article-body table{
  width:100%;margin:26px 0;font-size:15px;line-height:1.75;
  background:rgba(255,255,255,.02);border:1px solid var(--glass-line);
  border-radius:12px;overflow:hidden;
}
.article-body thead th{
  background:rgba(20,224,180,.09);color:var(--t1);font-weight:600;
  border-bottom:1px solid rgba(20,224,180,.32);text-align:left;padding:12px 14px;
}
.article-body tbody td{padding:12px 14px;border-bottom:1px solid var(--line);color:var(--t2);}
.article-body tbody tr:last-child td{border-bottom:0;}
.article-body tbody tr:nth-child(even){background:rgba(255,255,255,.03);}
.article-body hr{border:0;height:1px;background:var(--line);margin:36px 0;}
.article-body code{
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,"Courier New",monospace;
  background:rgba(255,255,255,.06);color:var(--brand);
  padding:2px 6px;border-radius:6px;font-size:.92em;
}
.article-body pre{
  background:var(--ink-800);border:1px solid var(--glass-line);border-radius:14px;
  padding:18px 20px;overflow:auto;margin:24px 0;
}
.article-body pre code{background:none;color:var(--t1);padding:0;font-size:14px;line-height:1.7;}

/* 空态 */
.article-empty{
  text-align:center;padding:56px 28px;border:1px dashed rgba(255,255,255,.18);
  border-radius:var(--r-card);background:var(--glass);max-width:640px;margin:0 auto;
}
.empty-icon{
  width:64px;height:64px;border-radius:20px;display:grid;place-items:center;margin:0 auto 20px;
  background:rgba(20,224,180,.1);border:1px solid rgba(20,224,180,.28);color:var(--brand);font-size:24px;
}
.article-empty h2{color:var(--t1);font-size:22px;font-weight:700;margin-bottom:12px;}
.article-empty p{color:var(--t2);font-size:15px;line-height:1.85;margin-bottom:26px;}

/* ===== 侧栏 ===== */
.article-aside{padding-left:10px;}
.side-sticky{position:sticky;top:calc(var(--nav-h) + 24px);}
.side-card{
  background:var(--glass);border:1px solid var(--glass-line);border-radius:var(--r-card);
  padding:24px;-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);
  box-shadow:var(--sh-card);margin-bottom:20px;
}
.side-card h3{
  display:flex;align-items:center;gap:9px;color:var(--t1);font-size:17px;font-weight:700;
  margin-bottom:14px;
}
.side-card h3::before{
  content:"";width:4px;height:16px;border-radius:2px;flex-shrink:0;
  background:linear-gradient(180deg,var(--brand),var(--brand-deep));
}
.side-list li{
  position:relative;padding:11px 0 11px 18px;font-size:14px;line-height:1.75;color:var(--t2);
  border-bottom:1px solid var(--line);
}
.side-list li:last-child{border-bottom:0;padding-bottom:0;}
.side-list li:first-child{padding-top:0;}
.side-list li::before{
  content:"";position:absolute;left:0;top:20px;width:6px;height:6px;border-radius:2px;background:var(--brand);
}
.side-list li:first-child::before{top:9px;}
.side-note{font-size:14px;line-height:1.85;color:var(--t3);margin-bottom:18px;}
.side-cta .btn{width:100%;}

/* ===== 相关推荐 ===== */
.related-section{padding:76px 0 88px;background:var(--ink-800);border-top:1px solid var(--line);margin-top:64px;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:34px;}
.section-head h2{color:var(--t1);font-size:30px;font-weight:700;line-height:1.3;}
.link-more{
  display:inline-flex;align-items:center;gap:6px;color:var(--brand);font-size:14px;font-weight:500;
  transition:gap .2s ease,color .2s ease;
}
.link-more:hover{gap:10px;color:#5CF3D2;}
.related-card{
  display:block;background:var(--glass);border:1px solid var(--glass-line);border-radius:var(--r-card);
  overflow:hidden;-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);
  box-shadow:var(--sh-card);transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
  margin-bottom:24px;
}
.related-card:hover{transform:translateY(-4px);box-shadow:var(--sh-hover);border-color:rgba(255,255,255,.18);}
.related-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--surface);}
.related-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .45s ease;}
.related-card:hover .related-thumb img{transform:scale(1.05);}
.related-body{padding:20px 22px 24px;}
.related-body h3{
  color:var(--t1);font-size:17px;font-weight:600;line-height:1.5;margin-bottom:10px;
  transition:color .2s ease;
}
.related-card:hover .related-body h3{color:var(--brand);}
.related-body p{
  font-size:14px;line-height:1.75;color:var(--t2);margin-bottom:14px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-meta{display:flex;align-items:center;gap:12px;font-size:12px;color:var(--t3);font-variant-numeric:tabular-nums;}
.card-meta .dot{width:3px;height:3px;border-radius:50%;background:var(--t3);}

/* 上下篇 */
.post-nav{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:14px;}
.post-nav-item{
  background:var(--glass);border:1px solid var(--glass-line);border-radius:var(--r-card);
  padding:22px 24px;transition:transform .22s ease,border-color .22s ease,background .22s ease;
}
.post-nav-item:hover{transform:translateY(-3px);border-color:rgba(20,224,180,.4);background:rgba(20,224,180,.06);}
.pn-label{display:flex;align-items:center;gap:8px;font-size:12px;color:var(--t3);letter-spacing:.08em;margin-bottom:8px;}
.pn-title{font-size:16px;font-weight:600;color:var(--t1);line-height:1.5;}
.post-nav-item:hover .pn-title{color:var(--brand);}
.post-nav-item.is-next{text-align:right;}
.post-nav-item.is-next .pn-label{justify-content:flex-end;}
.back-cat{display:flex;justify-content:center;margin-top:36px;}

/* ===== CTA 条 ===== */
.cta-strip{padding:64px 0;background:var(--ink-900);}
.cta-inner{
  position:relative;overflow:hidden;display:flex;align-items:center;justify-content:space-between;
  gap:32px;padding:38px 42px;border-radius:24px;
  background:var(--glass);border:1px solid var(--glass-line);
  -webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);
  box-shadow:var(--sh-card);
}
.cta-inner::before{
  content:"";position:absolute;left:-100px;top:-140px;width:460px;height:340px;pointer-events:none;
  background:radial-gradient(closest-side,rgba(20,224,180,.22),transparent);
}
.cta-text{position:relative;z-index:1;min-width:0;}
.cta-text h2{color:var(--t1);font-size:28px;font-weight:700;line-height:1.35;margin-bottom:10px;}
.cta-text p{font-size:15px;color:var(--t2);line-height:1.8;}
.cta-actions{position:relative;z-index:1;display:flex;align-items:center;gap:16px;flex-shrink:0;}
.cta-link{color:var(--t2);font-size:14px;font-weight:500;transition:color .2s ease;}
.cta-link:hover{color:var(--brand);}

/* ===== 页脚 ===== */
.site-footer{position:relative;background:#05080F;padding:64px 0 28px;}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,rgba(20,224,180,0),rgba(20,224,180,.65),rgba(20,224,180,0));
}
.footer-top{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1.4fr;gap:40px;
  padding-bottom:40px;border-bottom:1px solid var(--line);
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand span:last-child{color:var(--t1);font-size:17px;font-weight:700;}
.footer-col h4{color:var(--t1);font-size:15px;font-weight:600;margin-bottom:16px;}
.footer-col p{font-size:14px;line-height:1.85;color:var(--t3);}
.footer-col ul li{margin-bottom:10px;}
.footer-col ul a{font-size:14px;color:var(--t2);transition:color .2s ease;}
.footer-col ul a:hover{color:var(--brand);}
.footer-bottom{
  display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px;
  padding-top:24px;font-size:13px;color:var(--t3);
}

/* ===== 响应式 ===== */
@media screen and (max-width:1180px){
  .main-nav{gap:0;}
  .nav-link{padding:8px 9px;font-size:14px;}
  .nav-search{width:180px;}
}
@media screen and (max-width:1023px){
  :root{--nav-h:64px;}
  .grid-container{padding:0 24px;}
  .main-nav{display:none;}
  .nav-search{display:none;}
  .nav-toggle{display:inline-flex;}
  .header-inner{justify-content:space-between;gap:14px;}
  .brand-text{font-size:16px;}
  .article-title{font-size:34px;}
  .article-hero{padding:40px 0 36px;}
  .article-wrap{padding:40px 0 0;}
  .article-aside{display:none;}
  .article-body{max-width:100%;font-size:16px;}
  .footer-top{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-inner{flex-direction:column;align-items:flex-start;padding:30px 26px;}
  .cta-actions{width:100%;}
}
@media screen and (max-width:640px){
  .grid-container{padding:0 20px;}
  .article-title{font-size:27px;line-height:1.3;}
  .article-meta{gap:8px 14px;}
  .article-hero{padding:32px 0 30px;}
  .article-body{font-size:16px;line-height:1.9;}
  .article-body h2{font-size:22px;margin:36px 0 14px;}
  .article-body h3{font-size:18px;}
  .section-head{flex-direction:column;align-items:flex-start;gap:10px;}
  .section-head h2{font-size:23px;}
  .related-section{padding:56px 0 64px;margin-top:48px;}
  .post-nav{grid-template-columns:1fr;}
  .post-nav-item.is-next{text-align:left;}
  .post-nav-item.is-next .pn-label{justify-content:flex-start;}
  .footer-top{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .cta-text h2{font-size:22px;}
  .cta-actions{flex-direction:column;align-items:stretch;}
  .cta-actions .btn{width:100%;}
  .cta-link{text-align:center;}
}

/* roulang page: category2 */
:root{
  --ink-900:#05080F;
  --ink-800:#0A1120;
  --surface:#0E1729;
  --brand:#14E0B4;
  --brand-deep:#0BA98A;
  --heat:#FF7A2F;
  --violet:#6C7BFF;
  --t1:#EDF3FF;
  --t2:#A6B6D0;
  --t3:#6E7F9B;
  --line:rgba(255,255,255,.08);
  --glass:rgba(255,255,255,.045);
  --glass-line:rgba(255,255,255,.09);
  --r-lg:18px;
  --r-md:12px;
  --r-sm:6px;
  --shadow:0 18px 48px rgba(3,7,18,.55);
  --shadow-hover:0 24px 60px rgba(3,7,18,.70);
  --container:1180px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  background:var(--ink-900);
  color:var(--t1);
  font-size:16px;
  line-height:1.9;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color .2s ease,background-color .2s ease,border-color .2s ease,box-shadow .2s ease,transform .2s ease,opacity .2s ease;}
a:hover{color:var(--brand);}
button,input{font-family:inherit;font-size:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px;}
::selection{background:rgba(20,224,180,.28);color:#fff;}

.grid-container{max-width:var(--container);margin:0 auto;padding-left:32px;padding-right:32px;}

/* ---------- 顶栏 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(246,248,252,.88);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  border-bottom:1px solid #E3E9F2;
  box-shadow:0 2px 14px rgba(10,17,32,.06);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:68px;}
.brand{display:flex;align-items:center;gap:10px;color:#0A1120;font-size:17px;font-weight:800;letter-spacing:-.01em;}
.brand-mark{
  width:28px;height:28px;border-radius:8px;flex:0 0 auto;
  background:linear-gradient(135deg,var(--brand),var(--brand-deep));
  color:#04231C;display:grid;place-items:center;font-size:15px;font-weight:800;
  box-shadow:0 6px 18px rgba(20,224,180,.35);
}
.main-nav{display:flex;align-items:center;gap:4px;}
.nav-link{position:relative;padding:9px 14px;color:#34405A;font-size:15px;font-weight:500;border-radius:8px;}
.nav-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;border-radius:2px;
  background:var(--brand);transform:scaleX(0);transform-origin:left;transition:transform .2s ease;
}
.nav-link:hover{color:var(--brand-deep);}
.nav-link:hover::after,.nav-link.is-active::after{transform:scaleX(1);}
.nav-link.is-active{color:#0A1120;font-weight:700;}
.header-actions{display:flex;align-items:center;gap:12px;}
.search-form{
  position:relative;display:flex;align-items:center;gap:6px;width:220px;
  background:#E9EEF6;border:1px solid #E3E9F2;border-radius:999px;padding:0 16px;
  transition:background-color .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.search-form i{color:#6E7F9B;font-size:13px;}
.search-form input{
  flex:1;min-width:0;height:38px;border:0;background:transparent;color:#0A1120;
  font-size:14px;outline:none;
}
.search-form input::placeholder{color:#8A98AD;}
.search-form:focus-within{background:#fff;border-color:var(--brand);box-shadow:0 0 0 3px rgba(20,224,180,.22);}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:999px;font-size:15px;font-weight:700;padding:13px 28px;
  border:1px solid transparent;cursor:pointer;white-space:nowrap;
  transition:transform .2s ease,box-shadow .2s ease,background-color .2s ease,border-color .2s ease,color .2s ease,filter .2s ease;
}
.btn-primary{
  background:linear-gradient(135deg,#14E0B4,#0BA98A);color:#04231C;
  box-shadow:0 0 0 1px rgba(20,224,180,.45),0 10px 30px rgba(20,224,180,.26);
}
.btn-primary:hover{
  color:#04231C;transform:translateY(-2px);
  box-shadow:0 0 0 4px rgba(20,224,180,.16),0 14px 36px rgba(20,224,180,.38);
}
.btn-primary:active{transform:translateY(1px);filter:brightness(.94);}
.btn-ghost{background:transparent;border-color:rgba(255,255,255,.18);color:var(--t1);}
.btn-ghost:hover{background:rgba(255,255,255,.07);border-color:rgba(255,255,255,.32);color:var(--t1);}
.btn-ghost:active{transform:translateY(1px);background:rgba(255,255,255,.12);}
.btn-sm{padding:9px 20px;font-size:14px;}
.btn[disabled]{opacity:.45;cursor:not-allowed;transform:none;}

.menu-toggle{
  display:none;width:42px;height:42px;border-radius:10px;border:1px solid #E3E9F2;
  background:#fff;color:#0A1120;align-items:center;justify-content:center;cursor:pointer;
}
.menu-toggle:hover{border-color:var(--brand);color:var(--brand-deep);}
.mobile-nav{display:none;}
.nav-mask{position:fixed;inset:0;background:rgba(5,8,15,.62);opacity:0;pointer-events:none;transition:opacity .28s ease;z-index:80;}
.nav-mask.is-open{opacity:1;pointer-events:auto;}

/* ---------- Hero ---------- */
.page-hero{
  position:relative;overflow:hidden;
  background:var(--ink-900) url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  padding:84px 0 72px;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(5,8,15,.95) 0%,rgba(5,8,15,.74) 52%,rgba(5,8,15,.44) 100%);
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:radial-gradient(620px 340px at 10% 6%,rgba(20,224,180,.20),transparent 70%);
}
.page-hero .grid-container{position:relative;z-index:2;}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--t3);flex-wrap:wrap;}
.breadcrumb a{color:var(--t3);}
.breadcrumb a:hover{color:var(--brand);}
.breadcrumb .sep{color:rgba(255,255,255,.22);}
.breadcrumb .current{color:var(--brand);}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;margin-top:22px;
  padding:6px 14px;border-radius:6px;font-size:13px;font-weight:600;
  color:#C9CBFF;background:rgba(108,123,255,.14);border:1px solid rgba(108,123,255,.34);
}
.page-hero h1{
  margin-top:20px;max-width:860px;
  font-size:44px;line-height:1.18;font-weight:800;letter-spacing:-.02em;
}
.hero-sub{margin-top:20px;max-width:660px;color:var(--t2);font-size:17px;line-height:1.85;}
.hero-actions{margin-top:34px;display:flex;gap:14px;flex-wrap:wrap;}
.hero-chips{margin-top:34px;display:flex;gap:12px;flex-wrap:wrap;}
.chip{
  display:inline-flex;align-items:center;gap:8px;padding:9px 16px;border-radius:999px;
  background:var(--glass);border:1px solid var(--glass-line);
  -webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);
  font-size:13.5px;color:var(--t2);
}
.chip i{color:var(--brand);font-size:13px;}

/* ---------- 索引带 ---------- */
.index-band{background:var(--ink-800);border-bottom:1px solid var(--line);}
.index-tabs{display:flex;align-items:stretch;gap:6px;overflow-x:auto;scrollbar-width:none;}
.index-tabs::-webkit-scrollbar{display:none;}
.index-tab{
  position:relative;white-space:nowrap;padding:20px 18px;font-size:15px;font-weight:500;
  color:var(--t3);border-bottom:2px solid transparent;
  transition:color .2s ease,border-color .2s ease,background-color .2s ease;
}
.index-tab:hover{color:var(--t1);background:rgba(255,255,255,.03);}
.index-tab.is-current{color:var(--brand);border-bottom-color:var(--brand);font-weight:700;}

/* ---------- 通用板块 ---------- */
.section{padding:96px 0;}
.section-alt{background:var(--ink-800);}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:28px;margin-bottom:40px;flex-wrap:wrap;}
.section-head h2{font-size:30px;line-height:1.3;font-weight:700;}
.section-head h2::before{
  content:"";display:inline-block;width:4px;height:22px;border-radius:2px;
  background:var(--brand);margin-right:12px;vertical-align:-3px;
}
.section-head p{color:var(--t3);font-size:14px;max-width:520px;}
.intro{max-width:880px;color:var(--t2);font-size:16px;line-height:1.95;}
.intro strong{color:var(--t1);font-weight:600;}

/* ---------- 验证方式大卡 ---------- */
.verify-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;}
.verify-card{
  display:flex;gap:20px;padding:26px;border-radius:var(--r-lg);
  background:var(--glass);border:1px solid var(--glass-line);
  -webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);
  box-shadow:var(--shadow);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.verify-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(255,255,255,.18);}
.verify-index{
  flex:0 0 auto;font-size:30px;font-weight:700;line-height:1;color:var(--brand);
  font-variant-numeric:tabular-nums;opacity:.92;padding-top:2px;
}
.verify-body{min-width:0;}
.verify-media{
  border-radius:var(--r-md);overflow:hidden;margin-bottom:18px;
  background:var(--surface);border:1px solid var(--glass-line);
}
.verify-media img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.verify-body h3{font-size:20px;line-height:1.4;font-weight:600;margin-bottom:10px;}
.verify-body > p{color:var(--t2);font-size:15px;line-height:1.85;}
.dot-list{margin-top:14px;display:grid;gap:8px;}
.dot-list li{position:relative;padding-left:16px;color:var(--t2);font-size:14px;line-height:1.8;}
.dot-list li::before{
  content:"";position:absolute;left:0;top:.72em;width:6px;height:6px;border-radius:2px;background:var(--brand);
}

/* ---------- 数据条 ---------- */
.stat-bar{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:1px;
  background:var(--glass-line);border:1px solid var(--glass-line);border-radius:var(--r-lg);
  overflow:hidden;-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);
}
.stat-item{background:rgba(14,23,41,.74);padding:28px 24px;}
.stat-num{font-size:30px;font-weight:700;line-height:1;color:var(--heat);font-variant-numeric:tabular-nums;}
.stat-label{margin-top:12px;color:var(--t3);font-size:13.5px;line-height:1.7;}

/* ---------- 流程 ---------- */
.flow{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;position:relative;}
.flow-step{
  position:relative;padding:26px 22px;border-radius:16px;
  background:var(--glass);border:1px solid var(--glass-line);
  -webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);
  transition:border-color .25s ease,transform .25s ease;
}
.flow-step:hover{border-color:rgba(20,224,180,.4);transform:translateY(-3px);}
.flow-num{
  width:40px;height:40px;border-radius:50%;display:grid;place-items:center;
  background:rgba(20,224,180,.10);border:1px solid rgba(20,224,180,.35);
  color:var(--brand);font-weight:700;font-variant-numeric:tabular-nums;font-size:15px;
}
.flow-step h3{margin-top:18px;font-size:17px;font-weight:600;}
.flow-step p{margin-top:10px;color:var(--t2);font-size:14px;line-height:1.8;}

/* ---------- FAQ ---------- */
.accordion{border:0;background:transparent;margin:0;}
.accordion-item{
  border:1px solid var(--glass-line);border-radius:14px;background:var(--glass);
  margin-bottom:12px;overflow:hidden;
  -webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);
  transition:border-color .25s ease,background-color .25s ease;
}
.accordion-item:hover{border-color:rgba(255,255,255,.18);}
.accordion-item.is-active{border-color:rgba(20,224,180,.38);background:rgba(20,224,180,.05);}
.accordion-title{
  position:relative;display:flex;align-items:center;justify-content:space-between;gap:18px;
  width:100%;padding:19px 22px 19px 32px;border:0;background:transparent;cursor:pointer;
  color:var(--t1);font-size:16px;font-weight:600;text-align:left;line-height:1.6;
}
.accordion-title::before{
  content:"";position:absolute;left:15px;top:19px;bottom:19px;width:3px;border-radius:2px;background:var(--brand);
}
.accordion-title:hover{color:var(--brand);}
.faq-icon{
  flex:0 0 auto;width:26px;height:26px;border-radius:50%;display:grid;place-items:center;
  border:1px solid var(--glass-line);color:var(--t2);font-size:12px;
  transition:transform .18s ease,color .18s ease,border-color .18s ease;
}
.accordion-item.is-active .faq-icon{transform:rotate(180deg);color:var(--brand);border-color:rgba(20,224,180,.5);}
.accordion-content{display:none;padding:0 22px 20px 32px;color:var(--t2);font-size:15px;line-height:1.85;}
.accordion-item.is-active .accordion-content{display:block;}

/* ---------- CTA ---------- */
.cta-bar{
  position:relative;overflow:hidden;border-radius:22px;
  border:1px solid var(--glass-line);
  background:linear-gradient(120deg,rgba(20,224,180,.15),rgba(108,123,255,.10) 55%,rgba(14,23,41,.92));
  padding:46px 42px;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
  -webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);
}
.cta-bar::after{
  content:"";position:absolute;right:-120px;top:-140px;width:380px;height:380px;border-radius:50%;
  background:radial-gradient(circle,rgba(20,224,180,.22),transparent 68%);pointer-events:none;
}
.cta-copy{position:relative;z-index:2;max-width:640px;}
.cta-copy h2{font-size:26px;line-height:1.35;font-weight:700;}
.cta-copy p{margin-top:12px;color:var(--t2);font-size:15px;}
.cta-actions{position:relative;z-index:2;display:flex;gap:14px;flex-wrap:wrap;}

/* ---------- 页脚 ---------- */
.site-footer{position:relative;background:var(--ink-900);border-top:1px solid var(--line);padding-top:64px;}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(20,224,180,.6),transparent);
}
.footer-top{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.4fr;gap:44px;padding-bottom:50px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;color:var(--t1);font-size:17px;font-weight:800;}
.footer-col p{color:var(--t3);font-size:14px;line-height:1.85;}
.footer-col h4{margin-bottom:16px;color:var(--t1);font-size:14px;font-weight:700;letter-spacing:.06em;}
.footer-col ul li{margin-bottom:10px;}
.footer-col ul a{color:var(--t3);font-size:14px;}
.footer-col ul a:hover{color:var(--brand);}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding:22px 0 30px;border-top:1px solid var(--line);color:var(--t3);font-size:13px;
}

.is-broken{background:var(--surface);border:1px solid rgba(20,224,180,.35);min-height:120px;}

/* ---------- 响应式 ---------- */
@media (max-width:1180px){
  .search-form{width:180px;}
  .nav-link{padding:9px 10px;font-size:14.5px;}
}
@media (max-width:1023px){
  .main-nav,.search-form{display:none;}
  .menu-toggle{display:inline-flex;}
  .mobile-nav{
    display:block;position:fixed;top:0;right:0;bottom:0;width:286px;max-width:84vw;z-index:90;
    background:var(--ink-800);border-left:1px solid var(--line);padding:88px 22px 32px;
    transform:translateX(100%);transition:transform .28s ease;overflow-y:auto;
  }
  .mobile-nav.is-open{transform:translateX(0);}
  .mobile-nav a{display:block;padding:14px 14px;border-radius:12px;color:var(--t2);font-size:15px;border:1px solid transparent;}
  .mobile-nav a:hover{background:rgba(255,255,255,.06);color:var(--t1);}
  .mobile-nav a.is-active{color:var(--brand);border-color:rgba(20,224,180,.35);background:rgba(20,224,180,.08);}
  .verify-grid{grid-template-columns:1fr;}
  .flow{grid-template-columns:repeat(2,minmax(0,1fr));}
  .stat-bar{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-top{grid-template-columns:1fr 1fr;gap:32px;}
  .page-hero h1{font-size:34px;}
  .section{padding:72px 0;}
}
@media (max-width:639px){
  .grid-container{padding-left:20px;padding-right:20px;}
  .header-inner{height:60px;gap:12px;}
  .brand{font-size:15.5px;}
  .page-hero{padding:52px 0 48px;}
  .page-hero h1{font-size:30px;line-height:1.25;letter-spacing:-.01em;}
  .hero-sub{font-size:15.5px;}
  .hero-actions .btn{width:100%;}
  .section{padding:56px 0;}
  .section-head{margin-bottom:28px;}
  .section-head h2{font-size:24px;}
  .section-head h2::before{height:18px;}
  .flow{grid-template-columns:1fr;}
  .stat-bar{grid-template-columns:1fr 1fr;}
  .stat-item{padding:22px 18px;}
  .stat-num{font-size:25px;}
  .footer-top{grid-template-columns:1fr;}
  .cta-bar{padding:32px 22px;border-radius:18px;}
  .cta-copy h2{font-size:21px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
  .verify-card{padding:20px;gap:14px;flex-direction:column;}
  .verify-index{font-size:26px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
}

/* roulang page: category3 */
:root{
  --ink-900:#05080F;
  --ink-800:#0A1120;
  --surface:#0E1729;
  --glass:rgba(255,255,255,.045);
  --glass-bd:rgba(255,255,255,.09);
  --brand:#14E0B4;
  --brand-deep:#0BA98A;
  --heat:#FF7A2F;
  --violet:#6C7BFF;
  --t1:#EDF3FF;
  --t2:#A6B6D0;
  --t3:#6E7F9B;
  --line:rgba(255,255,255,.08);
  --r-lg:18px;
  --r-md:12px;
  --r-sm:8px;
  --shadow:0 18px 48px rgba(3,7,18,.55);
  --shadow-hover:0 24px 60px rgba(3,7,18,.70);
  --sp-8:8px; --sp-12:12px; --sp-16:16px; --sp-24:24px; --sp-32:32px; --sp-48:48px; --sp-56:56px; --sp-64:64px; --sp-96:96px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--ink-900);
  color:var(--t1);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;border-style:none}
a{color:inherit;text-decoration:none;transition:color .2s ease}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--t1)}
p{margin:0 0 1.1em}
p:last-child{margin-bottom:0}
ul{margin:0;padding:0;list-style:none}
button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit}
input{font-family:inherit}
a:focus-visible,button:focus-visible,summary:focus-visible,input:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
::selection{background:rgba(20,224,180,.3);color:#fff}

/* 容器 */
.grid-container{max-width:1180px;margin:0 auto;padding-left:32px;padding-right:32px;width:100%}
.grid-container.full{max-width:100%;padding-left:0;padding-right:0}

/* 顶部导航 */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(246,248,252,.88);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  border-bottom:1px solid #E3E9F2;
  box-shadow:0 2px 14px rgba(10,17,32,.06);
}
.header-inner{display:flex;align-items:center;gap:20px;height:68px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:28px;height:28px;border-radius:8px;
  background:linear-gradient(135deg,#14E0B4,#0BA98A);
  color:#04231C;font-size:15px;font-weight:800;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 6px 18px rgba(20,224,180,.35);
}
.brand-text{font-size:17px;font-weight:800;color:#0A1120;letter-spacing:-.01em;white-space:nowrap}
.main-nav{display:flex;align-items:center;gap:6px;margin-left:6px}
.nav-link{
  position:relative;padding:8px 10px;font-size:15px;font-weight:500;color:#34405A;
  border-radius:8px;transition:color .2s ease,background .2s ease;
}
.nav-link::after{
  content:"";position:absolute;left:10px;right:10px;bottom:2px;height:2px;border-radius:2px;
  background:var(--brand-deep);transform:scaleX(0);transform-origin:left;
  transition:transform .2s ease;
}
.nav-link:hover{color:#0BA98A}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:#0A1120;font-weight:700}
.nav-link.is-active::after{transform:scaleX(1)}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:14px}
.search-box{position:relative;width:220px}
.search-box input{
  width:100%;height:38px;border-radius:999px;border:1px solid transparent;
  background:#E9EEF6;padding:0 14px 0 38px;font-size:14px;color:#0A1120;
  transition:background .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.search-box input::placeholder{color:#7B879C}
.search-box input:focus{background:#fff;border-color:var(--brand-deep);outline:none;box-shadow:0 0 0 3px rgba(20,224,180,.25)}
.search-box .search-icon{position:absolute;left:13px;top:50%;transform:translateY(-50%);width:15px;height:15px;opacity:.5;pointer-events:none}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:999px;font-weight:700;font-size:15px;line-height:1;
  padding:12px 22px;transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
}
.btn-primary{
  background:linear-gradient(135deg,#14E0B4,#0BA98A);color:#04231C;
  box-shadow:0 0 0 1px rgba(20,224,180,.45),0 10px 30px rgba(20,224,180,.26);
}
.btn-primary:hover{transform:translateY(-2px);color:#04231C;box-shadow:0 0 0 4px rgba(20,224,180,.16),0 14px 36px rgba(20,224,180,.38)}
.btn-primary:active{transform:translateY(-1px);filter:brightness(.94)}
.btn-ghost{
  background:transparent;color:var(--t1);border:1px solid var(--glass-bd);
}
.btn-ghost:hover{background:rgba(255,255,255,.07);color:var(--brand);border-color:rgba(20,224,180,.4)}
.btn-ghost:active{transform:translateY(1px)}
.btn-header{padding:10px 20px;font-size:14px}
.btn:disabled,.btn[disabled]{opacity:.5;cursor:not-allowed;transform:none}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:10px;border:1px solid #DDE5F0;
  background:#fff;align-items:center;justify-content:center;
}
.nav-toggle span{display:block;width:18px;height:2px;background:#0A1120;border-radius:2px;position:relative}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:#0A1120;border-radius:2px}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}

/* 移动抽屉 */
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:280px;max-width:84vw;z-index:120;
  background:var(--ink-800);border-left:1px solid var(--line);
  padding:24px 20px;transform:translateX(102%);transition:transform .28s ease;
  overflow-y:auto;
}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px}
.drawer-brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:16px;color:var(--t1)}
.drawer-close{width:36px;height:36px;border-radius:10px;border:1px solid var(--glass-bd);color:var(--t2);font-size:18px;line-height:1;display:flex;align-items:center;justify-content:center}
.drawer-close:hover{color:var(--brand);border-color:rgba(20,224,180,.4)}
.drawer-nav{display:flex;flex-direction:column;gap:6px;margin-bottom:22px}
.drawer-nav a{padding:12px 14px;border-radius:12px;font-size:15px;color:var(--t2);border:1px solid transparent}
.drawer-nav a:hover{background:rgba(255,255,255,.05);color:var(--brand)}
.drawer-nav a.is-active{background:rgba(20,224,180,.12);border-color:rgba(20,224,180,.32);color:var(--brand)}
.overlay{position:fixed;inset:0;background:rgba(3,6,14,.6);z-index:110;opacity:0;visibility:hidden;transition:opacity .25s ease}
.overlay.is-open{opacity:1;visibility:visible}

/* Hero */
.hero{
  position:relative;overflow:hidden;
  min-height:620px;display:flex;align-items:center;
  background-image:linear-gradient(90deg,rgba(5,8,15,.94) 0%,rgba(5,8,15,.72) 48%,rgba(5,8,15,.42) 100%),url(/assets/images/backpic/back-2.png);
  background-size:cover;background-position:center;
}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(620px 420px at 10% 16%,rgba(20,224,180,.18),transparent 70%);
}
.hero-inner{position:relative;z-index:2;max-width:680px;padding:88px 0}
.crumb{font-size:13px;color:var(--t3);margin-bottom:22px;letter-spacing:.01em}
.crumb a{color:var(--t3)}
.crumb a:hover{color:var(--brand)}
.crumb .sep{margin:0 8px;opacity:.6}
.crumb .current{color:var(--brand)}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;font-size:13px;font-weight:600;
  color:#B9C2FF;background:rgba(108,123,255,.14);border:1px solid rgba(108,123,255,.36);
  margin-bottom:20px;
}
.hero-tag .dot{width:6px;height:6px;border-radius:50%;background:var(--violet);box-shadow:0 0 10px rgba(108,123,255,.9)}
.hero h1{font-size:44px;line-height:1.18;font-weight:800;letter-spacing:-.02em;margin-bottom:20px}
.hero h1 .accent{color:var(--brand)}
.hero-sub{font-size:17px;line-height:1.85;color:var(--t2);max-width:560px;margin-bottom:32px}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px}
.trust-row{display:flex;flex-wrap:wrap;gap:12px}
.trust-pill{
  display:inline-flex;align-items:center;gap:8px;
  padding:9px 16px;border-radius:999px;font-size:13px;color:var(--t2);
  background:var(--glass);border:1px solid var(--glass-bd);
  -webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);
}
.trust-pill svg{width:14px;height:14px;color:var(--brand);flex-shrink:0}

/* 板块通用 */
.sec{padding:96px 0}
.sec-alt{background:var(--ink-800);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.sec-head{margin-bottom:44px;max-width:760px}
.sec-head h2{font-size:30px;line-height:1.3;font-weight:700;margin-bottom:14px}
.sec-head p{font-size:16px;color:var(--t2);margin:0}
.eyebrow{
  display:inline-block;font-size:13px;font-weight:600;letter-spacing:.06em;
  color:var(--brand);margin-bottom:12px;text-transform:uppercase;
}
.eyebrow-line{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.eyebrow-line .bar{width:26px;height:2px;border-radius:2px;background:linear-gradient(90deg,#14E0B4,transparent)}

/* 导语 */
.intro-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.intro-media{border-radius:16px;overflow:hidden;border:1px solid var(--glass-bd);background:var(--surface);box-shadow:var(--shadow)}
.intro-media img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:16px}
.intro-copy h2{font-size:30px;line-height:1.3;margin-bottom:18px}
.intro-copy p{color:var(--t2);font-size:16px}
.intro-points{display:grid;gap:12px;margin-top:26px}
.intro-point{
  display:flex;gap:14px;padding:16px 18px;border-radius:12px;
  background:var(--glass);border:1px solid var(--glass-bd);
}
.intro-point .idx{
  flex-shrink:0;width:28px;height:28px;border-radius:8px;
  background:linear-gradient(135deg,rgba(20,224,180,.22),rgba(20,224,180,.06));
  border:1px solid rgba(20,224,180,.35);color:var(--brand);
  font-size:13px;font-weight:800;display:flex;align-items:center;justify-content:center;
}
.intro-point strong{display:block;font-size:15px;color:var(--t1);font-weight:600;margin-bottom:2px}
.intro-point span{font-size:14px;color:var(--t2);line-height:1.75}

/* 标签筛选 */
.filter-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:36px}
.chip{
  padding:8px 18px;border-radius:999px;font-size:14px;font-weight:500;
  color:#B9C2FF;background:rgba(108,123,255,.10);border:1px solid rgba(108,123,255,.30);
  cursor:pointer;transition:background .2s ease,border-color .2s ease,color .2s ease,transform .2s ease;
}
.chip:hover{background:rgba(108,123,255,.2);border-color:rgba(108,123,255,.55);transform:translateY(-1px)}
.chip.is-active{background:rgba(108,123,255,.26);border-color:rgba(108,123,255,.75);color:#E4E8FF;font-weight:600}

/* 瀑布卡 */
.waterfall{column-count:3;column-gap:24px}
.wf-card{
  break-inside:avoid;-webkit-column-break-inside:avoid;
  display:inline-block;width:100%;margin:0 0 24px;
  background:var(--glass);border:1px solid var(--glass-bd);border-radius:18px;overflow:hidden;
  -webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);
  box-shadow:var(--shadow);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.wf-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(255,255,255,.18)}
.wf-cover{position:relative;background:#0E1729}
.wf-cover img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:0}
.wf-cover .badge{
  position:absolute;top:12px;right:12px;
  padding:4px 10px;border-radius:6px;font-size:12px;font-weight:600;
  color:#D7DCFF;background:rgba(10,17,32,.72);border:1px solid rgba(108,123,255,.5);
  -webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);
}
.wf-body{padding:22px}
.wf-body h3{font-size:20px;line-height:1.4;font-weight:600;margin-bottom:10px}
.wf-body p{font-size:14px;line-height:1.8;color:var(--t2);margin-bottom:16px}
.wf-meta{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-top:14px;border-top:1px solid var(--line)}
.wf-meta span{font-size:13px;color:var(--t3);font-variant-numeric:tabular-nums}
.wf-link{font-size:14px;font-weight:600;color:var(--brand)}
.wf-link:hover{color:var(--brand-deep)}
.wf-card .num-strong{font-size:15px;font-weight:700;color:var(--heat);font-variant-numeric:tabular-nums}

/* 步骤 */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;position:relative;margin-top:8px}
.steps::before{
  content:"";position:absolute;top:22px;left:44px;right:44px;height:1px;
  background:repeating-linear-gradient(90deg,rgba(20,224,180,.55) 0 8px,transparent 8px 16px);
}
.step{position:relative;z-index:2}
.step-num{
  width:44px;height:44px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  font-size:15px;font-weight:800;color:var(--brand);
  background:var(--ink-900);border:1px solid rgba(20,224,180,.4);
  box-shadow:0 0 0 6px rgba(5,8,15,.9);
  font-variant-numeric:tabular-nums;margin-bottom:18px;
}
.step h3{font-size:18px;font-weight:600;margin-bottom:8px}
.step p{font-size:14px;line-height:1.8;color:var(--t2);margin:0}

/* 规则须知 */
.rules-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:start}
.rule-list{display:grid;gap:14px}
.rule-item{
  display:flex;gap:14px;padding:18px 20px;border-radius:14px;
  background:var(--glass);border:1px solid var(--glass-bd);
  transition:border-color .2s ease,transform .2s ease;
}
.rule-item:hover{border-color:rgba(20,224,180,.32);transform:translateX(3px)}
.rule-item .sq{width:8px;height:8px;border-radius:2px;background:var(--brand);flex-shrink:0;margin-top:9px}
.rule-item strong{display:block;font-size:15px;font-weight:600;margin-bottom:4px}
.rule-item span{font-size:14px;line-height:1.8;color:var(--t2)}
.notice-panel{
  border-radius:18px;padding:30px;border:1px solid var(--glass-bd);
  background:linear-gradient(160deg,rgba(14,23,41,.95),rgba(10,17,32,.85));
  box-shadow:var(--shadow);
}
.notice-panel h3{font-size:20px;margin-bottom:14px}
.notice-panel p{font-size:14px;line-height:1.85;color:var(--t2)}
.notice-panel .hl{color:var(--heat);font-weight:700;font-variant-numeric:tabular-nums}

/* 数据条 */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.stat{
  padding:26px 24px;border-radius:16px;
  background:var(--glass);border:1px solid var(--glass-bd);
  transition:transform .25s ease,border-color .25s ease;
}
.stat:hover{transform:translateY(-4px);border-color:rgba(20,224,180,.32)}
.stat .val{font-size:34px;font-weight:700;color:var(--brand);font-variant-numeric:tabular-nums;line-height:1.2;letter-spacing:-.02em}
.stat .val small{font-size:15px;font-weight:600;margin-left:4px;color:var(--t2)}
.stat .lbl{font-size:14px;color:var(--t2);margin-top:8px}
.stat .sub{font-size:13px;color:var(--t3);margin-top:4px}

/* FAQ */
.faq-wrap{max-width:860px;margin:0 auto}
.faq-item{
  background:var(--glass);border:1px solid var(--glass-bd);border-radius:14px;
  margin-bottom:12px;overflow:hidden;transition:border-color .2s ease;
}
.faq-item:hover{border-color:rgba(255,255,255,.16)}
.faq-item summary{
  list-style:none;cursor:pointer;padding:18px 22px;
  font-size:16px;font-weight:600;color:var(--t1);
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  border-left:3px solid var(--brand);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";font-size:22px;font-weight:400;color:var(--brand);
  transition:transform .18s ease;line-height:1;flex-shrink:0;
}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-body{padding:0 22px 20px 22px;font-size:15px;line-height:1.85;color:var(--t2)}

/* CTA 条 */
.cta-band{
  position:relative;overflow:hidden;border-radius:18px;
  border:1px solid var(--glass-bd);
  background:linear-gradient(120deg,rgba(20,224,180,.10),rgba(255,255,255,.035) 55%,rgba(108,123,255,.10));
  padding:44px 48px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
}
.cta-band::before{
  content:"";position:absolute;width:420px;height:420px;left:-140px;top:-180px;
  background:radial-gradient(circle,rgba(20,224,180,.22),transparent 68%);pointer-events:none;
}
.cta-copy{position:relative;z-index:2;max-width:520px}
.cta-copy h2{font-size:26px;line-height:1.35;margin-bottom:10px}
.cta-copy p{font-size:15px;color:var(--t2);margin:0}
.cta-actions{position:relative;z-index:2;display:flex;align-items:center;gap:18px;flex-wrap:wrap}
.text-link{font-size:15px;font-weight:600;color:var(--t2);border-bottom:1px solid transparent;transition:color .2s ease,border-color .2s ease}
.text-link:hover{color:var(--brand);border-color:var(--brand)}

/* 页脚 */
.site-footer{background:var(--ink-900);padding:72px 0 28px;position:relative;border-top:1px solid var(--line)}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(20,224,180,.65),transparent);
}
.footer-top{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:44px}
.footer-col h4{font-size:15px;font-weight:600;margin-bottom:18px;color:var(--t1)}
.footer-col p{font-size:14px;line-height:1.85;color:var(--t3)}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand span:last-child{font-size:17px;font-weight:700;color:var(--t1)}
.footer-col ul{display:grid;gap:10px}
.footer-col ul a{font-size:14px;color:var(--t2)}
.footer-col ul a:hover{color:var(--brand)}
.footer-bottom{
  border-top:1px solid var(--line);padding-top:22px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--t3);
}

/* 图片占位 */
.img-fallback{background:#0E1729;border:1px solid rgba(20,224,180,.2)}
.img-fallback img{opacity:0}

/* 响应式 */
@media screen and (max-width:1023px){
  .grid-container{padding-left:24px;padding-right:24px}
  .main-nav,.search-box{display:none}
  .nav-toggle{display:flex}
  .header-actions{gap:10px}
  .hero{min-height:520px}
  .hero h1{font-size:34px}
  .sec{padding:72px 0}
  .intro-grid{grid-template-columns:1fr;gap:32px}
  .steps{grid-template-columns:repeat(2,1fr);gap:28px 24px}
  .steps::before{display:none}
  .rules-grid{grid-template-columns:1fr;gap:32px}
  .stats{grid-template-columns:repeat(2,1fr)}
  .waterfall{column-count:2}
  .footer-top{grid-template-columns:1fr 1fr;gap:32px}
}
@media screen and (max-width:767px){
  .header-inner{height:56px;gap:12px}
  .brand-text{font-size:15px}
  .btn-header{display:none}
  .hero{min-height:520px}
  .hero-inner{padding:64px 0}
  .hero h1{font-size:30px;line-height:1.25}
  .hero-sub{font-size:16px}
  .sec{padding:56px 0}
  .sec-head h2,.intro-copy h2{font-size:24px}
  .waterfall{column-count:1}
  .stats{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
  .cta-band{padding:32px 24px}
  .cta-copy h2{font-size:22px}
  .footer-top{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media screen and (max-width:519px){
  .grid-container{padding-left:20px;padding-right:20px}
  .hero h1{font-size:26px}
  .hero-cta .btn{width:100%}
  .trust-row{flex-direction:column;align-items:stretch}
  .trust-pill{justify-content:flex-start}
}

/* roulang page: category4 */
:root{
  --ink-900:#05080F;
  --ink-800:#0A1120;
  --surface:#0E1729;
  --brand:#14E0B4;
  --brand-deep:#0BA98A;
  --heat:#FF7A2F;
  --violet:#6C7BFF;
  --t1:#EDF3FF;
  --t2:#A6B6D0;
  --t3:#6E7F9B;
  --line:rgba(255,255,255,0.08);
  --glass:rgba(255,255,255,0.045);
  --glass-bd:rgba(255,255,255,0.09);
  --r-lg:18px;
  --r-md:12px;
  --r-sm:8px;
  --shadow:0 18px 48px rgba(3,7,18,0.55);
  --shadow-hover:0 24px 60px rgba(3,7,18,0.70);
  --topbar-bg:rgba(246,248,252,0.88);
  --topbar-line:#E3E9F2;
  --topbar-ink:#0A1120;
  --topbar-sub:#34405A;
}
*,
*::before,
*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--ink-900);
  color:var(--t1);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border-radius:16px;}
a{color:var(--brand);text-decoration:none;transition:color .18s ease;}
a:hover{color:#7DF3DE;}
h1,h2,h3,h4,h5,h6{margin:0;font-weight:700;color:var(--t1);line-height:1.3;}
p{margin:0 0 1.1em;}
p:last-child{margin-bottom:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button,input{font-family:inherit;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;}
.grid-container{max-width:1180px;padding-left:32px;padding-right:32px;margin:0 auto;}
.num{font-variant-numeric:tabular-nums;font-weight:700;}

/* ---------- 顶栏 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:var(--topbar-bg);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--topbar-line);
  box-shadow:0 2px 14px rgba(10,17,32,0.06);
}
.header-inner{
  display:flex;
  align-items:center;
  gap:24px;
  height:68px;
}
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
  color:var(--topbar-ink);
  font-size:17px;
  font-weight:800;
  letter-spacing:-0.01em;
}
.brand:hover{color:var(--topbar-ink);}
.brand-mark{
  width:28px;
  height:28px;
  border-radius:8px;
  display:flex;
  align-items:center;
  justify-content:center;
  background:linear-gradient(135deg,#14E0B4,#0BA98A);
  color:#04231C;
  font-size:15px;
  font-weight:800;
  flex:0 0 auto;
}
.main-nav{
  display:flex;
  align-items:center;
  gap:2px;
  margin-left:12px;
}
.nav-link{
  position:relative;
  display:flex;
  align-items:center;
  height:68px;
  padding:0 15px;
  font-size:15px;
  font-weight:500;
  color:var(--topbar-sub);
}
.nav-link::after{
  content:"";
  position:absolute;
  left:15px;
  right:15px;
  bottom:16px;
  height:2px;
  border-radius:2px;
  background:var(--brand);
  transform:scaleX(0);
  transform-origin:center;
  transition:transform .2s ease;
}
.nav-link:hover{color:var(--brand-deep);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--topbar-ink);font-weight:700;}
.nav-link.is-active::after{transform:scaleX(1);}
.header-actions{
  margin-left:auto;
  display:flex;
  align-items:center;
  gap:12px;
}
.header-search{
  position:relative;
  display:flex;
  align-items:center;
  width:220px;
}
.header-search i{
  position:absolute;
  left:14px;
  font-size:13px;
  color:var(--topbar-sub);
  pointer-events:none;
}
.header-search input{
  width:100%;
  height:40px;
  padding:0 14px 0 36px;
  border-radius:999px;
  border:1px solid transparent;
  background:#E9EEF6;
  color:var(--topbar-ink);
  font-size:14px;
  transition:background .18s ease,border-color .18s ease,box-shadow .18s ease;
}
.header-search input::placeholder{color:#7C8AA5;}
.header-search input:focus{
  outline:none;
  background:#fff;
  border-color:var(--brand-deep);
  box-shadow:0 0 0 3px rgba(20,224,180,0.22);
}
.nav-toggle{
  display:none;
  width:42px;
  height:42px;
  border-radius:10px;
  border:1px solid var(--topbar-line);
  background:#fff;
  color:var(--topbar-ink);
  font-size:16px;
  cursor:pointer;
  transition:background .18s ease;
}
.nav-toggle:hover{background:#EEF3FA;}
.mobile-drawer{
  position:fixed;
  top:0;
  right:0;
  bottom:0;
  width:78%;
  max-width:340px;
  background:var(--ink-800);
  border-left:1px solid var(--glass-bd);
  padding:26px 24px;
  transform:translateX(102%);
  transition:transform .26s ease;
  z-index:80;
  overflow-y:auto;
}
.mobile-drawer.is-open{transform:translateX(0);}
.mobile-drawer .drawer-title{
  font-size:13px;
  color:var(--t3);
  letter-spacing:.08em;
  margin-bottom:14px;
}
.mobile-drawer a{
  display:block;
  padding:13px 0;
  font-size:16px;
  color:var(--t2);
  border-bottom:1px solid var(--line);
}
.mobile-drawer a.is-active{color:var(--brand);font-weight:700;}
.drawer-close{
  position:absolute;
  top:18px;
  right:18px;
  width:36px;
  height:36px;
  border-radius:10px;
  border:1px solid var(--glass-bd);
  background:transparent;
  color:var(--t2);
  cursor:pointer;
}
.drawer-cta{margin-top:22px;width:100%;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  line-height:1;
  font-size:15px;
  font-weight:600;
  padding:14px 28px;
  border-radius:999px;
  border:1px solid transparent;
  cursor:pointer;
  text-decoration:none;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,border-color .2s ease,color .2s ease;
}
.btn-primary{
  background:linear-gradient(135deg,#14E0B4,#0BA98A);
  color:#04231C;
  box-shadow:0 0 0 1px rgba(20,224,180,0.45),0 10px 30px rgba(20,224,180,0.26);
}
.btn-primary:hover{
  color:#04231C;
  transform:translateY(-2px);
  box-shadow:0 0 0 4px rgba(20,224,180,0.16),0 14px 36px rgba(20,224,180,0.38);
}
.btn-primary:active{
  transform:translateY(-1px);
  filter:brightness(0.94);
}
.btn-ghost{
  background:transparent;
  border-color:var(--glass-bd);
  color:var(--t1);
}
.btn-ghost:hover{
  background:rgba(255,255,255,0.07);
  border-color:rgba(255,255,255,0.18);
  color:var(--t1);
}
.btn-ghost:active{transform:translateY(1px);}
.btn-link{
  padding:0;
  border:none;
  background:none;
  color:var(--brand);
  font-weight:600;
}
.btn-link:hover{color:#7DF3DE;}
.btn-sm{padding:10px 18px;font-size:14px;}
.btn-block{width:100%;}

/* ---------- Hero ---------- */
.hero{
  position:relative;
  min-height:620px;
  display:flex;
  align-items:center;
  background:url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  overflow:hidden;
}
.hero::before{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(160deg,rgba(5,8,15,0.94) 0%,rgba(5,8,15,0.76) 46%,rgba(5,8,15,0.42) 100%);
}
.hero::after{
  content:"";
  position:absolute;
  inset:0;
  background:radial-gradient(circle at 12% 16%,rgba(20,224,180,0.18),transparent 56%);
  pointer-events:none;
}
.hero-inner{
  position:relative;
  z-index:2;
  width:100%;
  padding:92px 0 88px;
}
.crumb{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--t3);
  margin-bottom:22px;
}
.crumb a{color:var(--t3);}
.crumb a:hover{color:var(--brand);}
.crumb .cur{color:var(--brand);}
.hero-copy{max-width:720px;}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:6px 14px;
  border-radius:999px;
  background:rgba(108,123,255,0.14);
  border:1px solid rgba(108,123,255,0.32);
  color:#B6BFFF;
  font-size:13px;
  font-weight:600;
  letter-spacing:.02em;
  margin-bottom:20px;
}
.hero h1{
  font-size:44px;
  line-height:1.18;
  letter-spacing:-0.02em;
  font-weight:800;
  margin-bottom:18px;
}
.hero h1 .hl{
  background:linear-gradient(135deg,#14E0B4,#6C7BFF);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.hero-sub{
  font-size:17px;
  line-height:1.85;
  color:var(--t2);
  max-width:600px;
  margin-bottom:28px;
}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px;}
.hero-pills{display:flex;flex-wrap:wrap;gap:12px;}
.pill{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:9px 16px;
  border-radius:999px;
  background:var(--glass);
  border:1px solid var(--glass-bd);
  -webkit-backdrop-filter:blur(16px);
  backdrop-filter:blur(16px);
  font-size:13px;
  color:var(--t2);
}
.pill i{color:var(--brand);font-size:13px;}

/* ---------- 通用板块 ---------- */
.section{padding:96px 0;}
.section-alt{background:var(--ink-800);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{margin-bottom:42px;max-width:720px;}
.section-head .tag{
  display:inline-block;
  font-size:13px;
  font-weight:600;
  color:var(--brand);
  letter-spacing:.06em;
  margin-bottom:12px;
}
.section-head h2{
  font-size:30px;
  line-height:1.3;
  letter-spacing:-0.01em;
  margin-bottom:14px;
}
.section-head p{color:var(--t2);font-size:15px;line-height:1.9;}

/* ---------- 时间轴 ---------- */
.timeline{position:relative;padding-left:36px;}
.timeline::before{
  content:"";
  position:absolute;
  left:9px;
  top:10px;
  bottom:10px;
  width:1px;
  background:linear-gradient(180deg,rgba(20,224,180,0.95),rgba(20,224,180,0.05));
}
.tl-item{position:relative;margin-bottom:18px;}
.tl-item:last-child{margin-bottom:0;}
.tl-item::before{
  content:"";
  position:absolute;
  left:-36px;
  top:26px;
  width:19px;
  height:19px;
  border-radius:50%;
  background:var(--ink-900);
  border:1px solid rgba(20,224,180,0.55);
  box-shadow:0 0 0 5px rgba(20,224,180,0.07);
}
.tl-item.is-current::before{
  background:var(--heat);
  border-color:var(--heat);
  box-shadow:0 0 0 5px rgba(255,122,47,0.14),0 0 18px rgba(255,122,47,0.55);
}
.tl-card{
  background:var(--glass);
  border:1px solid var(--glass-bd);
  border-radius:14px;
  padding:22px 26px;
  -webkit-backdrop-filter:blur(16px);
  backdrop-filter:blur(16px);
  transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease;
}
.tl-card:hover{
  transform:translateY(-3px);
  border-color:rgba(255,255,255,0.18);
  box-shadow:var(--shadow);
}
.tl-head{
  display:flex;
  align-items:center;
  gap:12px;
  flex-wrap:wrap;
  margin-bottom:8px;
}
.tl-index{
  font-variant-numeric:tabular-nums;
  font-weight:700;
  font-size:13px;
  color:var(--brand);
  background:rgba(20,224,180,0.10);
  border:1px solid rgba(20,224,180,0.28);
  border-radius:6px;
  padding:2px 9px;
}
.tl-card h3{font-size:19px;font-weight:600;}
.tl-card p{color:var(--t2);font-size:15px;line-height:1.85;margin-bottom:0;}
.tl-meta{
  margin-top:10px;
  font-size:13px;
  color:var(--t3);
  display:flex;
  gap:16px;
  flex-wrap:wrap;
}

/* ---------- 侧栏卡 ---------- */
.side-card{
  background:linear-gradient(180deg,rgba(255,255,255,0.06),rgba(255,255,255,0.03));
  border:1px solid var(--glass-bd);
  border-radius:var(--r-lg);
  padding:26px;
  box-shadow:var(--shadow);
}
.side-card h3{font-size:20px;margin-bottom:14px;}
.side-card ul li{
  display:flex;
  align-items:flex-start;
  gap:10px;
  padding:10px 0;
  border-bottom:1px dashed var(--line);
  font-size:14px;
  color:var(--t2);
}
.side-card ul li:last-child{border-bottom:none;}
.side-card ul li i{color:var(--brand);margin-top:6px;font-size:12px;}
.side-note{
  margin-top:18px;
  padding:14px 16px;
  border-radius:var(--r-md);
  background:rgba(255,122,47,0.10);
  border:1px solid rgba(255,122,47,0.30);
  color:#FFC79E;
  font-size:13px;
  line-height:1.8;
}

/* ---------- 客服渠道卡 ---------- */
.channel-card{
  height:100%;
  background:var(--surface);
  border:1px solid var(--glass-bd);
  border-radius:var(--r-lg);
  overflow:hidden;
  box-shadow:var(--shadow);
  transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
  display:flex;
  flex-direction:column;
}
.channel-card:hover{
  transform:translateY(-4px);
  box-shadow:var(--shadow-hover);
  border-color:rgba(255,255,255,0.18);
}
.channel-thumb{position:relative;}
.channel-thumb img{width:100%;height:210px;object-fit:cover;border-radius:0;}
.channel-badge{
  position:absolute;
  top:14px;
  left:14px;
  padding:5px 12px;
  border-radius:6px;
  font-size:12px;
  font-weight:600;
  color:#C9CEFF;
  background:rgba(14,23,41,0.72);
  border:1px solid rgba(108,123,255,0.45);
  -webkit-backdrop-filter:blur(8px);
  backdrop-filter:blur(8px);
}
.channel-body{padding:24px 26px 26px;display:flex;flex-direction:column;flex:1;}
.channel-body h3{font-size:20px;margin-bottom:10px;}
.channel-body p{color:var(--t2);font-size:15px;line-height:1.85;}
.channel-facts{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin:16px 0 20px;
}
.fact{
  font-size:13px;
  color:var(--t2);
  padding:6px 12px;
  border-radius:8px;
  background:rgba(255,255,255,0.05);
  border:1px solid var(--glass-bd);
}
.fact b{color:var(--heat);font-variant-numeric:tabular-nums;font-weight:700;}
.channel-body .btn{margin-top:auto;align-self:flex-start;}

/* ---------- FAQ ---------- */
.accordion{background:transparent;border:none;margin:0;}
.accordion-item{
  background:var(--glass);
  border:1px solid var(--glass-bd);
  border-radius:14px;
  margin-bottom:12px;
  overflow:hidden;
  -webkit-backdrop-filter:blur(16px);
  backdrop-filter:blur(16px);
  transition:border-color .2s ease,background .2s ease;
}
.accordion-item:hover{border-color:rgba(255,255,255,0.16);}
.accordion-item.is-active{background:rgba(255,255,255,0.07);border-color:rgba(20,224,180,0.32);}
.accordion-title{
  position:relative;
  display:block;
  padding:18px 56px 18px 24px;
  font-size:16px;
  font-weight:600;
  color:var(--t1);
  border:none;
  background:transparent;
}
.accordion-title:hover,
.accordion-title:focus{color:var(--t1);background:transparent;}
.accordion-title::before{
  content:"";
  position:absolute;
  left:0;
  top:16px;
  bottom:16px;
  width:3px;
  height:auto;
  border-radius:0 3px 3px 0;
  background:var(--brand);
  display:block;
  transform:none;
  transition:background .2s ease;
}
.accordion-title::after{
  content:"+";
  position:absolute;
  right:24px;
  top:50%;
  transform:translateY(-50%);
  font-size:20px;
  line-height:1;
  font-weight:700;
  color:var(--brand);
  transition:transform .18s ease;
}
.accordion-item.is-active .accordion-title::after{
  content:"−";
  transform:translateY(-50%) rotate(180deg);
}
.accordion-content{
  padding:0 24px 20px 24px;
  border:none;
  background:transparent;
  color:var(--t2);
  font-size:15px;
  line-height:1.85;
}
.accordion-content p{margin-bottom:0.8em;}
.accordion-content p:last-child{margin-bottom:0;}

/* ---------- 准备清单 ---------- */
.check-list{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:16px;
}
.check-item{
  display:flex;
  gap:14px;
  padding:20px 22px;
  border-radius:14px;
  background:var(--glass);
  border:1px solid var(--glass-bd);
  transition:transform .2s ease,border-color .2s ease;
}
.check-item:hover{transform:translateY(-3px);border-color:rgba(255,255,255,0.18);}
.check-item i{
  color:var(--brand);
  font-size:16px;
  margin-top:5px;
  flex:0 0 auto;
}
.check-item h4{font-size:16px;margin-bottom:6px;}
.check-item p{color:var(--t2);font-size:14px;line-height:1.8;margin:0;}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;
  border-radius:22px;
  overflow:hidden;
  border:1px solid rgba(20,224,180,0.26);
  background:url('/assets/images/backpic/back-3.png') center/cover no-repeat;
  padding:52px 48px;
  box-shadow:var(--shadow);
}
.cta-band::before{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(120deg,rgba(5,8,15,0.94),rgba(5,8,15,0.68));
}
.cta-band::after{
  content:"";
  position:absolute;
  inset:0;
  background:radial-gradient(circle at 82% 20%,rgba(20,224,180,0.22),transparent 58%);
}
.cta-inner{
  position:relative;
  z-index:2;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
  flex-wrap:wrap;
}
.cta-inner h2{font-size:28px;margin-bottom:10px;}
.cta-inner p{color:var(--t2);font-size:15px;margin:0;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;}

/* ---------- 页脚 ---------- */
.site-footer{
  position:relative;
  background:var(--ink-900);
  padding:64px 0 28px;
  border-top:1px solid var(--line);
}
.site-footer::before{
  content:"";
  position:absolute;
  top:0;
  left:0;
  right:0;
  height:1px;
  background:linear-gradient(90deg,transparent,rgba(20,224,180,0.6),transparent);
}
.footer-top{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.4fr;
  gap:36px;
  padding-bottom:38px;
  border-bottom:1px solid var(--line);
}
.footer-brand{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:17px;
  font-weight:800;
  color:var(--t1);
  margin-bottom:14px;
}
.footer-col p{color:var(--t3);font-size:14px;line-height:1.85;margin-bottom:0;}
.footer-col h4{
  font-size:15px;
  font-weight:700;
  margin-bottom:16px;
  color:var(--t1);
}
.footer-col ul li{margin-bottom:10px;}
.footer-col ul li a{color:var(--t2);font-size:14px;}
.footer-col ul li a:hover{color:var(--brand);}
.footer-bottom{
  display:flex;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  padding-top:22px;
  font-size:13px;
  color:var(--t3);
}

/* ---------- 响应式 ---------- */
@media screen and (max-width:1023px){
  .main-nav,
  .header-search{display:none;}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center;}
  .header-inner{height:60px;gap:16px;}
  .hero{min-height:560px;}
  .hero h1{font-size:34px;}
  .section{padding:64px 0;}
  .footer-top{grid-template-columns:1fr 1fr;gap:28px;}
  .cta-band{padding:40px 30px;}
  .check-list{grid-template-columns:1fr;}
}
@media screen and (max-width:639px){
  .grid-container{padding-left:20px;padding-right:20px;}
  .header-inner{height:56px;}
  .brand{font-size:15px;}
  .brand-mark{width:26px;height:26px;font-size:14px;}
  .hero{min-height:520px;}
  .hero-inner{padding:64px 0 60px;}
  .hero h1{font-size:30px;line-height:1.25;}
  .hero-sub{font-size:15px;}
  .hero-cta .btn{width:100%;}
  .section{padding:56px 0;}
  .section-head h2{font-size:24px;}
  .section-head{margin-bottom:30px;}
  .timeline{padding-left:26px;}
  .timeline::before{left:6px;}
  .tl-item::before{left:-26px;top:22px;width:15px;height:15px;}
  .tl-card{padding:18px 18px;}
  .side-card{padding:20px;}
  .channel-thumb img{height:180px;}
  .cta-band{padding:32px 22px;border-radius:18px;}
  .cta-inner h2{font-size:22px;}
  .cta-actions .btn{width:100%;}
  .footer-top{grid-template-columns:1fr;gap:24px;}
  .footer-bottom{flex-direction:column;gap:8px;}
}