/* roulang page: index */
:root{
  --brand:#0FCE9B;
  --brand-strong:#06A87C;
  --brand-soft:#E7FBF4;
  --accent:#FF7A45;
  --accent-2:#7B5CFF;
  --ink:#14122B;
  --ink-2:#4A4A63;
  --ink-3:#7A7A92;
  --line:#E6E9F2;
  --bg:#F5F7FB;
  --card:#FFFFFF;
  --dark:#14122B;
  --dark-2:#1E1B3C;
  --ok:#16A34A;
  --warn:#F59E0B;
  --radius:16px;
  --radius-sm:12px;
  --shadow:0 8px 24px rgba(20,18,43,.06);
  --shadow-lg:0 14px 32px rgba(20,18,43,.12);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:system-ui,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.7;
  color:var(--ink);
  background:var(--bg);
  padding-bottom:72px;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button,input{font-family:inherit;font-size:inherit;}
h1,h2,h3,h4,p,ul,ol{margin:0;}
ul,ol{padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px;}
.container-x{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px;}
.section{padding:72px 0;}
.section-tight{padding:56px 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:32px;flex-wrap:wrap;}
.section-title{font-size:clamp(24px,3vw,32px);font-weight:800;letter-spacing:-.02em;line-height:1.3;}
.section-sub{margin-top:10px;color:var(--ink-2);font-size:15px;max-width:620px;}
.link-more{color:var(--brand-strong);font-weight:600;font-size:15px;display:inline-flex;align-items:center;gap:6px;}
.link-more:hover{color:var(--ink);}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;color:var(--brand-strong);background:var(--brand-soft);border-radius:999px;padding:6px 14px;letter-spacing:.02em;}

/* 按钮 */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:44px;padding:0 24px;border-radius:999px;font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;transition:transform .2s ease,background .2s ease,box-shadow .2s ease,color .2s ease,border-color .2s ease;white-space:nowrap;}
.btn-primary{background:var(--brand);color:#06251E;}
.btn-primary:hover{background:var(--brand-strong);color:#fff;transform:translateY(-1px);box-shadow:0 10px 22px rgba(6,168,124,.28);}
.btn-primary:active{transform:translateY(0);box-shadow:none;}
.btn-ghost{background:#fff;border-color:var(--line);color:var(--ink);}
.btn-ghost:hover{background:var(--brand-soft);border-color:#B7EDD9;color:var(--brand-strong);transform:translateY(-1px);}
.btn-on-dark{background:var(--brand);color:#06251E;}
.btn-on-dark:hover{background:#fff;color:var(--ink);transform:translateY(-1px);}
.btn-outline-dark{background:transparent;border-color:rgba(255,255,255,.28);color:#fff;}
.btn-outline-dark:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-1px);}
.btn-sm{height:36px;padding:0 16px;font-size:14px;}

/* 顶部导航 */
.site-header{position:sticky;top:0;z-index:60;background:rgba(255,255,255,.92);backdrop-filter:saturate(160%) blur(10px);border-bottom:1px solid transparent;transition:border-color .2s ease,box-shadow .2s ease;}
.site-header.is-scrolled{border-bottom-color:var(--line);box-shadow:0 6px 18px rgba(20,18,43,.06);}
.header-top-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;height:68px;}
.brand{display:inline-flex;align-items:center;gap:10px;font-weight:800;font-size:19px;letter-spacing:-.01em;}
.brand-mark{width:34px;height:34px;border-radius:11px;background:linear-gradient(135deg,var(--brand),var(--brand-strong));color:#04231C;display:flex;align-items:center;justify-content:center;font-size:17px;font-weight:800;}
.brand-text small{display:block;font-size:11px;font-weight:500;color:var(--ink-3);letter-spacing:.08em;}
.header-actions{display:flex;align-items:center;gap:12px;}
.search-box{display:flex;align-items:center;background:var(--bg);border:1px solid var(--line);border-radius:999px;padding:2px 4px 2px 14px;height:40px;transition:border-color .2s ease,box-shadow .2s ease;}
.search-box:focus-within{border-color:var(--brand);box-shadow:0 0 0 4px rgba(15,206,155,.14);}
.search-box input{border:0;background:transparent;outline:none;width:180px;font-size:14px;color:var(--ink);}
.search-box input::placeholder{color:var(--ink-3);}
.search-box button{border:0;background:var(--ink);color:#fff;height:32px;padding:0 14px;border-radius:999px;font-size:13px;cursor:pointer;transition:background .2s ease;}
.search-box button:hover{background:var(--brand-strong);}
.nav-toggle{display:none;width:42px;height:42px;border-radius:12px;border:1px solid var(--line);background:#fff;cursor:pointer;align-items:center;justify-content:center;}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;position:relative;}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);border-radius:2px;}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}
.header-nav{border-top:1px solid var(--line);background:#fff;}
.nav-inner{display:flex;align-items:center;gap:6px;height:52px;overflow-x:auto;scrollbar-width:none;}
.nav-inner::-webkit-scrollbar{display:none;}
.nav-link{position:relative;padding:8px 16px;border-radius:999px;font-size:15px;font-weight:600;color:var(--ink-2);white-space:nowrap;transition:background .2s ease,color .2s ease;}
.nav-link:hover{background:var(--bg);color:var(--ink);}
.nav-link.is-active{background:var(--brand-soft);color:var(--brand-strong);}
.nav-link.is-active::after{content:"";position:absolute;left:16px;right:16px;bottom:-14px;height:3px;border-radius:3px;background:var(--brand);}

/* Hero */
.hero{position:relative;overflow:hidden;background:var(--dark);color:#fff;}
.hero::before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);background-size:44px 44px;mask-image:radial-gradient(120% 90% at 15% 10%,#000 20%,transparent 78%);opacity:.7;pointer-events:none;}
.hero::after{content:"";position:absolute;width:420px;height:420px;right:-140px;top:-160px;border-radius:50%;background:radial-gradient(circle,rgba(123,92,255,.35),transparent 68%);pointer-events:none;}
.hero-inner{position:relative;display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;padding:76px 0 84px;}
.hero h1{font-size:clamp(32px,5vw,54px);line-height:1.16;font-weight:800;letter-spacing:-.03em;}
.hero h1 em{font-style:normal;color:var(--brand);}
.hero-sub{margin-top:18px;font-size:17px;line-height:1.8;color:rgba(255,255,255,.76);max-width:520px;}
.hero-cta{margin-top:30px;display:flex;flex-wrap:wrap;gap:12px;}
.hero-badges{margin-top:26px;display:flex;flex-wrap:wrap;gap:10px;}
.hero-badge{display:inline-flex;align-items:center;gap:8px;border:1px solid rgba(255,255,255,.16);border-radius:999px;padding:7px 14px;font-size:13px;color:rgba(255,255,255,.82);}
.hero-badge i{width:6px;height:6px;border-radius:50%;background:var(--brand);display:inline-block;}
.hero-visual{position:relative;}
.hero-visual img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--radius);border:1px solid rgba(255,255,255,.12);}
.hero-visual::before{content:"";position:absolute;inset:-14px -14px auto auto;width:78px;height:78px;border-radius:14px;background:repeating-conic-gradient(var(--brand) 0 25%,transparent 0 50%) 0 0/12px 12px;opacity:.35;}
.hero-stats{position:absolute;left:-18px;bottom:-18px;background:#fff;color:var(--ink);border-radius:14px;padding:14px 18px;box-shadow:var(--shadow-lg);display:flex;gap:22px;}
.hero-stats b{display:block;font-size:20px;font-weight:800;font-variant-numeric:tabular-nums;}
.hero-stats span{font-size:12px;color:var(--ink-3);}

/* 频道胶囊 */
.channel-bar{background:#fff;border-bottom:1px solid var(--line);}
.channel-inner{display:flex;gap:12px;padding:18px 0;overflow-x:auto;scrollbar-width:none;}
.channel-inner::-webkit-scrollbar{display:none;}
.channel-pill{display:inline-flex;align-items:center;gap:10px;padding:10px 18px;border-radius:999px;border:1px solid var(--line);background:#fff;font-size:15px;font-weight:600;white-space:nowrap;transition:all .2s ease;}
.channel-pill small{font-size:12px;font-weight:600;color:var(--brand-strong);background:var(--brand-soft);border-radius:999px;padding:2px 9px;font-variant-numeric:tabular-nums;}
.channel-pill:hover{border-color:#B7EDD9;background:var(--brand-soft);transform:translateY(-1px);}

/* 卖点错落栅格 */
.value-grid{display:grid;grid-template-columns:2fr 1fr 1fr;grid-template-rows:repeat(2,minmax(0,1fr));gap:20px;}
.value-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:26px;box-shadow:var(--shadow);transition:transform .2s ease,box-shadow .2s ease;}
.value-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg);}
.value-card.large{grid-row:span 2;display:flex;flex-direction:column;justify-content:space-between;background:linear-gradient(160deg,#fff 40%,var(--brand-soft));}
.value-card h3{font-size:19px;font-weight:700;margin-top:16px;}
.value-card.large h3{font-size:24px;}
.value-card p{margin-top:10px;color:var(--ink-2);font-size:15px;}
.icon-box{width:44px;height:44px;border-radius:13px;background:var(--brand-soft);color:var(--brand-strong);display:flex;align-items:center;justify-content:center;}
.value-card.large .icon-box{background:var(--brand);color:#04231C;}
.value-list{margin-top:18px;display:flex;flex-direction:column;gap:8px;}
.value-list li{display:flex;gap:10px;font-size:14px;color:var(--ink-2);}
.value-list li::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent);margin-top:9px;flex:none;}

/* 场景演示 */
.step{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;padding:36px 0;border-top:1px solid var(--line);}
.step:first-of-type{border-top:0;padding-top:0;}
.step.reverse .step-media{order:-1;}
.step-no{font-size:14px;font-weight:800;color:var(--accent-2);font-variant-numeric:tabular-nums;letter-spacing:.08em;}
.step h3{font-size:clamp(20px,2.4vw,26px);font-weight:800;margin-top:10px;letter-spacing:-.02em;}
.step p{margin-top:12px;color:var(--ink-2);font-size:16px;}
.step-tip{margin-top:16px;display:inline-flex;gap:8px;align-items:flex-start;background:#fff;border:1px dashed #C9D4E8;border-radius:var(--radius-sm);padding:10px 14px;font-size:14px;color:var(--ink-2);}
.step-media img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--radius);box-shadow:var(--shadow);}

/* 社会认同 */
.proof{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.proof-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.proof-item{text-align:left;padding:22px;border-left:3px solid var(--brand);background:var(--bg);border-radius:0 var(--radius-sm) var(--radius-sm) 0;}
.proof-item b{display:block;font-size:30px;font-weight:800;font-variant-numeric:tabular-nums;letter-spacing:-.02em;}
.proof-item span{font-size:13px;color:var(--ink-2);}
.review-track{display:flex;gap:18px;margin-top:36px;overflow-x:auto;padding-bottom:8px;scroll-snap-type:x mandatory;scrollbar-width:none;}
.review-track::-webkit-scrollbar{display:none;}
.review-card{flex:0 0 320px;scroll-snap-align:start;background:var(--bg);border:1px solid var(--line);border-radius:var(--radius);padding:22px;}
.review-head{display:flex;align-items:center;gap:12px;}
.avatar{width:40px;height:40px;border-radius:12px;background:linear-gradient(135deg,var(--accent-2),var(--brand));color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;}
.review-name{font-weight:700;font-size:15px;}
.review-meta{font-size:12px;color:var(--ink-3);}
.review-card p{margin-top:14px;font-size:15px;color:var(--ink-2);}
.partner-bar{margin-top:34px;display:flex;flex-wrap:wrap;gap:14px 32px;align-items:center;filter:grayscale(1);opacity:.6;font-weight:700;font-size:15px;color:var(--ink-2);}

/* 内容卡片 */
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.post-card{display:flex;flex-direction:column;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);transition:transform .2s ease,box-shadow .2s ease;}
.post-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg);}
.post-thumb{position:relative;overflow:hidden;aspect-ratio:16/9;background:var(--bg);}
.post-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .2s ease;}
.post-card:hover .post-thumb img{transform:scale(1.03);}
.post-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1;}
.badge{display:inline-flex;align-items:center;align-self:flex-start;font-size:12px;font-weight:700;color:var(--brand-strong);background:var(--brand-soft);border-radius:999px;padding:4px 12px;}
.post-title{font-size:18px;font-weight:700;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;transition:color .2s ease;}
.post-card:hover .post-title{color:var(--brand-strong);}
.post-excerpt{font-size:14px;color:var(--ink-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.post-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--ink-3);border-top:1px solid var(--line);padding-top:12px;}
.empty-state{grid-column:1/-1;text-align:center;background:#fff;border:1px dashed #C9D4E8;border-radius:var(--radius);padding:56px 24px;}
.empty-state p{margin-top:12px;color:var(--ink-2);}

/* FAQ */
.faq-wrap{max-width:820px;margin:0 auto;}
.faq-item{border-bottom:1px solid var(--line);background:#fff;}
.faq-item:first-child{border-top:1px solid var(--line);border-radius:var(--radius) var(--radius) 0 0;}
.faq-item:last-child{border-radius:0 0 var(--radius) var(--radius);}
.faq-item summary{list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:20px 22px;font-size:16px;font-weight:700;}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{content:"+";font-size:22px;font-weight:400;color:var(--brand-strong);line-height:1;transition:transform .2s ease;}
.faq-item[open] summary::after{content:"−";}
.faq-item summary:hover{color:var(--brand-strong);}
.faq-body{padding:0 22px 22px;color:var(--ink-2);font-size:15px;animation:faqIn .24s ease;}
@keyframes faqIn{from{opacity:0;transform:translateY(-4px);}to{opacity:1;transform:translateY(0);}}

/* CTA */
.cta-band{background:var(--dark);color:#fff;position:relative;overflow:hidden;}
.cta-band::before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px);background-size:40px 40px;opacity:.5;pointer-events:none;}
.cta-inner{position:relative;display:flex;align-items:center;justify-content:space-between;gap:32px;padding:56px 0;flex-wrap:wrap;}
.cta-inner h2{font-size:clamp(24px,3vw,32px);font-weight:800;letter-spacing:-.02em;}
.cta-inner p{margin-top:10px;color:rgba(255,255,255,.72);max-width:560px;font-size:15px;}

/* 页脚 */
.site-footer{background:var(--dark);color:rgba(255,255,255,.72);border-top:1px solid rgba(255,255,255,.08);}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:36px;padding:56px 0 40px;}
.footer-brand .brand{color:#fff;}
.footer-brand .brand-text small{color:rgba(255,255,255,.5);}
.footer-brand p{margin-top:16px;font-size:14px;max-width:300px;}
.footer-col h4{color:#fff;font-size:15px;font-weight:700;margin-bottom:16px;}
.footer-col li{margin-bottom:10px;font-size:14px;}
.footer-col a:hover{color:var(--brand);}
.footer-bottom{border-top:1px solid rgba(255,255,255,.08);padding:20px 0 28px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:rgba(255,255,255,.5);}

/* 移动端固定条 */
.mobile-bar{position:fixed;left:0;right:0;bottom:0;z-index:70;display:none;gap:12px;padding:10px 16px calc(10px + env(safe-area-inset-bottom));background:#fff;border-top:1px solid var(--line);box-shadow:0 -8px 20px rgba(20,18,43,.08);}
.mobile-bar .btn{flex:1;height:48px;}

@media (max-width:1024px){
  .hero-inner{grid-template-columns:1fr;gap:36px;padding:56px 0 64px;}
  .value-grid{grid-template-columns:1fr 1fr;grid-template-rows:auto;}
  .value-card.large{grid-row:auto;grid-column:span 2;}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .proof-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .search-box input{width:130px;}
}
@media (max-width:1023px){
  .nav-toggle{display:inline-flex;}
  .search-box{display:none;}
  .header-nav{max-height:0;overflow:hidden;transition:max-height .24s ease;}
  .header-nav.is-open{max-height:360px;}
  .nav-inner{flex-direction:column;align-items:stretch;height:auto;padding:8px 16px 16px;gap:4px;overflow:visible;}
  .nav-link{padding:12px 14px;border-radius:12px;}
  .nav-link.is-active::after{display:none;}
}
@media (max-width:768px){
  .section{padding:52px 0;}
  .step{grid-template-columns:1fr;gap:22px;padding:28px 0;}
  .step.reverse .step-media{order:0;}
  .proof-grid{grid-template-columns:1fr;}
  .cta-inner{padding:44px 0;}
}
@media (max-width:640px){
  body{padding-bottom:84px;}
  .value-grid{grid-template-columns:1fr;}
  .value-card.large{grid-column:auto;}
  .card-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;}
  .hero-stats{position:static;margin-top:16px;}
  .hero-visual::before{display:none;}
  .mobile-bar{display:flex;}
  .header-top-inner{height:62px;}
  .brand{font-size:17px;}
}
@media (min-width:641px){
  .mobile-bar{display:none;}
}

/* roulang page: category1 */
:root{
  --brand:#0FCE9B;
  --brand-strong:#06A87C;
  --accent:#FF7A45;
  --accent-2:#7B5CFF;
  --ink:#14122B;
  --ink-2:#4A4A63;
  --line:#E6E9F2;
  --bg:#F5F7FB;
  --card:#FFFFFF;
  --dark:#14122B;
  --ok:#16A34A;
  --warn:#F59E0B;
  --radius:16px;
  --radius-sm:12px;
  --shadow-sm:0 8px 24px rgba(20,18,43,.06);
  --shadow-md:0 14px 32px rgba(20,18,43,.12);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:system-ui,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input{font:inherit;color:inherit}
ul,ol{margin:0;padding:0}
h1,h2,h3,h4{margin:0;line-height:1.3;font-weight:800;letter-spacing:-.01em}
p{margin:0}
.container-x{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px}
.num{font-variant-numeric:tabular-nums}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:60;background:rgba(255,255,255,.94);backdrop-filter:blur(12px);border-bottom:1px solid transparent;transition:box-shadow .2s ease,border-color .2s ease}
.site-header.is-scrolled{border-bottom-color:var(--line);box-shadow:0 6px 20px rgba(20,18,43,.07)}
.header-top-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;height:72px}
.brand{display:flex;align-items:center;gap:10px}
.brand-mark{width:38px;height:38px;flex:0 0 38px;border-radius:12px;display:grid;place-items:center;font-size:19px;font-weight:800;color:#04231B;background:linear-gradient(135deg,var(--brand),var(--brand-strong));box-shadow:0 6px 16px rgba(15,206,155,.32)}
.brand-text{display:flex;flex-direction:column;line-height:1.15;font-size:17px;font-weight:800;color:var(--ink)}
.brand-text small{font-size:11px;font-weight:500;letter-spacing:.6px;color:var(--ink-2)}
.header-actions{display:flex;align-items:center;gap:12px}
.search-box{display:flex;align-items:center;height:40px;padding:4px 4px 4px 16px;border:1px solid var(--line);border-radius:999px;background:#fff;transition:border-color .2s,box-shadow .2s}
.search-box:focus-within{border-color:var(--brand);box-shadow:0 0 0 4px rgba(15,206,155,.14)}
.search-box input{width:170px;border:0;background:transparent;outline:none;font-size:14px}
.search-box input::placeholder{color:#9AA0B4}
.search-box button{height:32px;padding:0 16px;border:0;border-radius:999px;background:var(--ink);color:#fff;font-size:13px;cursor:pointer;transition:background .2s}
.search-box button:hover{background:var(--brand-strong)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:44px;padding:0 24px;border:1px solid transparent;border-radius:999px;font-size:15px;font-weight:600;cursor:pointer;white-space:nowrap;transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease}
.btn-sm{height:36px;padding:0 18px;font-size:13.5px}
.btn-lg{height:48px;padding:0 28px;font-size:16px}
.btn-primary{background:var(--brand);color:#032A20;box-shadow:0 8px 20px rgba(15,206,155,.28)}
.btn-primary:hover{background:var(--brand-strong);color:#fff;transform:translateY(-1px);box-shadow:0 12px 26px rgba(6,168,124,.32)}
.btn-primary:active{transform:none;box-shadow:0 6px 16px rgba(6,168,124,.24)}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--ink)}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand-strong);background:rgba(15,206,155,.08)}
.btn-onDark{border-color:rgba(255,255,255,.34);color:#fff;background:rgba(255,255,255,.04)}
.btn-onDark:hover{border-color:var(--brand);color:var(--brand);background:rgba(15,206,155,.12)}
.btn:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
.nav-toggle{display:none;position:relative;width:40px;height:40px;border:1px solid var(--line);border-radius:12px;background:#fff;cursor:pointer}
.nav-toggle span{display:block;width:18px;height:2px;margin:0 auto;border-radius:2px;background:var(--ink);position:relative}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;border-radius:2px;background:var(--ink)}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.header-nav{border-top:1px solid var(--line);background:rgba(255,255,255,.72)}
.nav-inner{display:flex;align-items:center;gap:4px;height:52px;overflow-x:auto;scrollbar-width:none}
.nav-inner::-webkit-scrollbar{display:none}
.nav-link{position:relative;display:inline-flex;align-items:center;height:52px;padding:0 14px;font-size:14.5px;font-weight:500;color:var(--ink-2);white-space:nowrap;transition:color .2s}
.nav-link::after{content:"";position:absolute;left:14px;right:14px;bottom:0;height:3px;border-radius:3px 3px 0 0;background:transparent;transition:background .2s}
.nav-link:hover{color:var(--ink)}
.nav-link:hover::after{background:rgba(15,206,155,.4)}
.nav-link.is-active{color:var(--brand-strong);font-weight:700}
.nav-link.is-active::after{background:var(--brand)}

/* ---------- hero ---------- */
.channel-hero{position:relative;overflow:hidden;background:var(--dark);color:#fff}
.channel-hero::before{content:"";position:absolute;inset:0;background-image:url("/assets/images/backpic/back-2.png");background-size:cover;background-position:center;opacity:.24}
.channel-hero::after{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);background-size:48px 48px;opacity:.5}
.channel-hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);gap:40px;align-items:center;padding:64px 0 68px}
.crumbs{display:flex;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.62);margin-bottom:18px}
.crumbs a:hover{color:var(--brand)}
.crumbs span{opacity:.5}
.hero-badge{display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border:1px solid rgba(15,206,155,.5);border-radius:999px;font-size:12.5px;font-weight:600;color:var(--brand);background:rgba(15,206,155,.1)}
.channel-hero h1{margin:18px 0 16px;font-size:clamp(28px,4vw,40px);font-weight:800;line-height:1.25}
.channel-hero h1 em{font-style:normal;color:var(--brand)}
.hero-lead{max-width:600px;font-size:16.5px;line-height:1.85;color:rgba(255,255,255,.76)}
.hero-links{display:flex;flex-wrap:wrap;align-items:center;gap:18px;margin-top:26px}
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:14.5px;font-weight:600;color:var(--brand);border-bottom:1px solid rgba(15,206,155,.4);padding-bottom:2px;transition:color .2s,border-color .2s}
.text-link:hover{color:#fff;border-color:#fff}
.hero-visual{position:relative;border-radius:20px;overflow:hidden;border:1px solid rgba(255,255,255,.12);box-shadow:0 24px 60px rgba(0,0,0,.35)}
.hero-visual img{width:100%;height:280px;object-fit:cover}
.hero-visual figcaption{position:absolute;left:0;right:0;bottom:0;padding:14px 18px;font-size:13px;color:rgba(255,255,255,.86);background:linear-gradient(to top,rgba(20,18,43,.92),rgba(20,18,43,0))}

/* ---------- generic sections ---------- */
.section{padding:76px 0}
.section-tight{padding:52px 0}
.section-head{max-width:760px;margin-bottom:36px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;letter-spacing:.08em;color:var(--brand-strong);text-transform:uppercase}
.eyebrow::before{content:"";width:20px;height:2px;background:var(--brand);border-radius:2px}
.section-head h2{margin:12px 0 12px;font-size:clamp(23px,3vw,30px)}
.section-head p{color:var(--ink-2);font-size:15.5px;line-height:1.85}
.split{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:52px;align-items:center}
.split.reverse .split-text{order:2}
.split-media{position:relative;border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow-sm);background:var(--card)}
.split-media img{width:100%;height:340px;object-fit:cover;transition:transform .4s ease}
.split-media:hover img{transform:scale(1.03)}
.split-media .corner{position:absolute;right:14px;top:14px;display:inline-flex;align-items:center;gap:6px;padding:5px 12px;border-radius:999px;background:rgba(20,18,43,.72);color:#fff;font-size:12px;font-weight:600}
.split-text h2{font-size:clamp(22px,2.6vw,28px);margin-bottom:14px}
.split-text > p{color:var(--ink-2);font-size:15.5px;line-height:1.85}
.check-list{list-style:none;margin-top:24px;display:grid;gap:14px}
.check-list li{display:flex;gap:12px;padding:16px 18px;background:var(--card);border:1px solid var(--line);border-radius:var(--radius-sm);box-shadow:var(--shadow-sm);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease}
.check-list li:hover{transform:translateY(-2px);box-shadow:var(--shadow-md);border-color:rgba(15,206,155,.42)}
.check-list .dot{flex:0 0 24px;width:24px;height:24px;margin-top:3px;border-radius:8px;display:grid;place-items:center;background:rgba(15,206,155,.14);color:var(--brand-strong);font-size:13px;font-weight:800}
.check-list strong{display:block;font-size:15.5px;margin-bottom:2px}
.check-list span{display:block;font-size:14px;color:var(--ink-2);line-height:1.75}
.step-strip{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;margin-top:8px}
.step-strip .step-card{position:relative;padding:24px 22px;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-sm);transition:transform .2s ease,box-shadow .2s ease}
.step-strip .step-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-md)}
.step-strip .idx{font-size:13px;font-weight:800;color:var(--accent-2);letter-spacing:.1em}
.step-strip h3{font-size:18px;margin:10px 0 8px}
.step-strip p{font-size:14.5px;color:var(--ink-2);line-height:1.78}

/* ---------- feed list ---------- */
.feed-list{display:grid;gap:14px}
.feed-item{display:grid;grid-template-columns:180px minmax(0,1fr) auto;gap:22px;align-items:center;padding:18px;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-sm);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease}
.feed-item:hover{transform:translateY(-2px);box-shadow:var(--shadow-md);border-color:rgba(15,206,155,.42)}
.feed-thumb{width:180px;height:110px;border-radius:var(--radius-sm);overflow:hidden;background:#EDF0F7}
.feed-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.feed-item:hover .feed-thumb img{transform:scale(1.04)}
.feed-body h3{font-size:17.5px;margin-bottom:8px;transition:color .2s}
.feed-item:hover .feed-body h3{color:var(--brand-strong)}
.feed-body p{font-size:14.5px;color:var(--ink-2);line-height:1.75}
.feed-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:12px;font-size:12.5px;color:#7C8299}
.badge{display:inline-flex;align-items:center;padding:3px 10px;border-radius:999px;font-size:12px;font-weight:700;background:rgba(15,206,155,.14);color:#04795B}
.badge-purple{background:rgba(123,92,255,.14);color:#5B41D6}
.badge-orange{background:rgba(255,122,69,.16);color:#C7522A}
.feed-side{font-size:13px;color:#8A90A4;text-align:right;white-space:nowrap}

/* ---------- faq ---------- */
.faq-wrap{display:grid;gap:12px;max-width:860px}
.faq-item{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:0 20px;transition:border-color .2s,box-shadow .2s}
.faq-item[open]{border-color:rgba(15,206,155,.5);box-shadow:var(--shadow-sm)}
.faq-item summary{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:18px 0;font-size:16px;font-weight:700;cursor:pointer;list-style:none}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";flex:0 0 auto;width:26px;height:26px;border-radius:50%;display:grid;place-items:center;font-size:16px;font-weight:700;color:var(--brand-strong);background:rgba(15,206,155,.14);transition:background .2s,color .2s}
.faq-item[open] summary::after{content:"−";background:var(--brand);color:#fff}
.faq-item summary:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:10px}
.faq-item p{padding:0 0 18px;font-size:14.8px;color:var(--ink-2);line-height:1.85}

/* ---------- cta ---------- */
.cta-band{position:relative;overflow:hidden;background:var(--dark);color:#fff;border-radius:22px;padding:52px 40px;margin:0 auto}
.cta-band::before{content:"";position:absolute;inset:0;background-image:url("/assets/images/backpic/back-3.png");background-size:cover;background-position:center;opacity:.2}
.cta-band::after{content:"";position:absolute;right:-60px;top:-60px;width:260px;height:260px;border-radius:50%;background:radial-gradient(circle,rgba(15,206,155,.42),transparent 70%)}
.cta-inner{position:relative;z-index:2;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:26px}
.cta-inner h2{font-size:clamp(22px,2.8vw,29px);margin-bottom:10px}
.cta-inner p{color:rgba(255,255,255,.74);font-size:15.5px;max-width:560px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}

/* ---------- footer ---------- */
.site-footer{margin-top:80px;padding:58px 0 26px;background:var(--dark);color:#fff}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1.3fr;gap:34px;padding-bottom:34px;border-bottom:1px solid rgba(255,255,255,.1)}
.footer-brand .brand-text{color:#fff}
.footer-brand .brand-text small{color:rgba(255,255,255,.6)}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.85;color:rgba(255,255,255,.62);max-width:340px}
.footer-col h4{font-size:15px;margin-bottom:16px;font-weight:700}
.footer-col ul{display:grid;gap:11px}
.footer-col li{font-size:14px;color:rgba(255,255,255,.6);list-style:none}
.footer-col a{color:rgba(255,255,255,.74);transition:color .2s}
.footer-col a:hover{color:var(--brand)}
.footer-bottom{display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;padding-top:20px;font-size:13px;color:rgba(255,255,255,.5)}

/* ---------- mobile bar ---------- */
.mobile-bar{position:fixed;left:0;right:0;bottom:0;z-index:70;display:none;gap:10px;padding:10px 16px calc(10px + env(safe-area-inset-bottom));background:#fff;border-top:1px solid var(--line);box-shadow:0 -8px 24px rgba(20,18,43,.08)}
.mobile-bar .btn{flex:1;height:46px}

@media (max-width:1023px){
  .nav-toggle{display:block}
  .search-box{display:none}
  .header-nav{display:none}
  .header-nav.is-open{display:block}
  .nav-inner{flex-direction:column;align-items:stretch;height:auto;gap:2px;padding-top:8px;padding-bottom:16px}
  .nav-link{height:46px;padding:0 12px;border-radius:12px}
  .nav-link::after{display:none}
  .nav-link:hover{background:rgba(20,18,43,.05)}
  .nav-link.is-active{background:rgba(15,206,155,.14)}
  .channel-hero-inner{grid-template-columns:minmax(0,1fr);gap:30px;padding:44px 0 48px}
  .hero-visual img{height:220px}
  .split{grid-template-columns:minmax(0,1fr);gap:28px}
  .split.reverse .split-text{order:0}
  .split-media img{height:260px}
  .feed-item{grid-template-columns:140px minmax(0,1fr);gap:16px}
  .feed-thumb{width:140px;height:92px}
  .feed-side{grid-column:2;text-align:left}
  .step-strip{grid-template-columns:minmax(0,1fr)}
  .section{padding:56px 0}
  .footer-grid{grid-template-columns:1fr 1fr}
  .mobile-bar{display:flex}
  body{padding-bottom:84px}
  .cta-band{padding:40px 24px;border-radius:18px}
}
@media (max-width:639px){
  .header-top-inner{height:64px}
  .brand-text{font-size:15.5px}
  .brand-mark{width:34px;height:34px;flex:0 0 34px;font-size:17px;border-radius:10px}
  .feed-item{grid-template-columns:minmax(0,1fr)}
  .feed-thumb{width:100%;height:168px}
  .feed-side{grid-column:1}
  .footer-grid{grid-template-columns:minmax(0,1fr);gap:26px}
  .cta-actions .btn{width:100%}
  .split-media img{height:210px}
}

/* roulang page: article */
:root{
  --brand:#0FCE9B;
  --brand-strong:#06A87C;
  --accent:#FF7A45;
  --accent-2:#7B5CFF;
  --ink:#14122B;
  --ink-2:#4A4A63;
  --line:#E6E9F2;
  --bg:#F5F7FB;
  --card:#FFFFFF;
  --dark:#14122B;
  --ok:#16A34A;
  --warn:#F59E0B;
  --radius:16px;
  --radius-sm:12px;
  --shadow:0 8px 24px rgba(20,18,43,.06);
  --shadow-hover:0 14px 32px rgba(20,18,43,.12);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;scroll-padding-top:136px;-webkit-text-size-adjust:100%;}
html body{
  margin:0;padding-bottom:76px;
  font-family:system-ui,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;line-height:1.7;color:var(--ink);background:var(--bg);
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button,input{font:inherit;}
button{cursor:pointer;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
h1,h2,h3,h4{font-weight:800;line-height:1.3;letter-spacing:-.01em;}
ul,ol{padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;}
.container-x{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px;}

/* ===== 顶部阅读进度 ===== */
.read-progress{position:fixed;top:0;left:0;height:3px;width:0;z-index:90;
  background:linear-gradient(90deg,var(--brand),var(--accent-2));transition:width .08s linear;}

/* ===== 导航 ===== */
.site-header{position:sticky;top:0;z-index:80;background:rgba(255,255,255,.94);
  backdrop-filter:blur(12px);border-bottom:1px solid var(--line);transition:box-shadow .22s ease;}
.site-header.is-scrolled{box-shadow:0 8px 24px rgba(20,18,43,.09);}
.header-top-inner{display:flex;align-items:center;gap:18px;min-height:66px;}
.brand{display:flex;align-items:center;gap:10px;flex:none;}
.brand-mark{width:38px;height:38px;border-radius:12px;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--brand),var(--brand-strong));
  color:#04241c;font-weight:800;font-size:18px;box-shadow:0 8px 18px rgba(15,206,155,.28);}
.brand-text{display:flex;flex-direction:column;font-weight:800;font-size:17px;line-height:1.15;}
.brand-text small{font-size:11px;font-weight:500;color:var(--ink-2);letter-spacing:.06em;margin-top:2px;}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:10px;}
.search-box{display:flex;align-items:center;background:#fff;border:1px solid var(--line);
  border-radius:999px;padding:3px 3px 3px 14px;transition:border-color .2s,box-shadow .2s;}
.search-box:focus-within{border-color:var(--brand);box-shadow:0 0 0 4px rgba(15,206,155,.14);}
.search-box input{border:0;outline:none;background:transparent;width:168px;font-size:14px;color:var(--ink);}
.search-box input::placeholder{color:#9aa0b5;}
.search-box button{border:0;background:var(--ink);color:#fff;border-radius:999px;padding:7px 15px;
  font-size:13px;font-weight:600;transition:background .2s;}
.search-box button:hover{background:var(--brand-strong);}
.nav-toggle{display:none;width:42px;height:38px;border-radius:12px;border:1px solid var(--line);
  background:#fff;align-items:center;justify-content:center;}
.nav-toggle span,.nav-toggle span::before,.nav-toggle span::after{
  content:"";display:block;width:18px;height:2px;border-radius:2px;background:var(--ink);position:relative;transition:.2s;}
.nav-toggle span::before{position:absolute;top:-6px;}
.nav-toggle span::after{position:absolute;top:6px;}
.header-nav{border-top:1px solid var(--line);background:rgba(255,255,255,.7);}
.nav-inner{display:flex;align-items:center;gap:6px;height:50px;overflow-x:auto;scrollbar-width:none;}
.nav-inner::-webkit-scrollbar{display:none;}
.nav-link{position:relative;padding:7px 15px;border-radius:999px;font-size:14.5px;font-weight:600;
  color:var(--ink-2);white-space:nowrap;transition:background .2s,color .2s;}
.nav-link:hover{color:var(--ink);background:#eef1f8;}
.nav-link.is-active{color:#052e23;background:rgba(15,206,155,.18);}

/* ===== 按钮 ===== */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:44px;padding:0 22px;
  border-radius:999px;font-weight:700;font-size:15px;border:1px solid transparent;white-space:nowrap;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease,color .18s ease,border-color .18s ease;}
.btn-sm{height:36px;padding:0 16px;font-size:13.5px;}
.btn-primary{background:var(--brand);color:#052e23;box-shadow:0 6px 18px rgba(15,206,155,.25);}
.btn-primary:hover{background:var(--brand-strong);color:#fff;transform:translateY(-1px);
  box-shadow:0 12px 26px rgba(15,206,155,.32);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--ink);}
.btn-ghost:hover{background:#fff;border-color:var(--brand);color:var(--brand-strong);}
.btn-outline-light{background:transparent;border-color:rgba(255,255,255,.35);color:#fff;}
.btn-outline-light:hover{background:rgba(255,255,255,.12);border-color:#fff;transform:translateY(-1px);}

/* ===== 主体 ===== */
.page-wrap{padding:26px 0 72px;}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:var(--ink-2);margin-bottom:18px;}
.crumbs a{color:var(--ink-2);transition:color .2s;}
.crumbs a:hover{color:var(--brand-strong);}
.crumbs .sep{color:#c3c8d8;}
.crumbs .crumb-current{max-width:52ch;overflow:hidden;white-space:nowrap;text-overflow:ellipsis;color:var(--ink);font-weight:600;}

.article-layout{display:grid;grid-template-columns:minmax(0,1fr);gap:26px;}
.article-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow);padding:26px 22px;}
.article-badge{display:inline-flex;align-items:center;gap:6px;padding:5px 13px;border-radius:999px;
  background:rgba(15,206,155,.14);color:var(--brand-strong);font-size:12.5px;font-weight:700;letter-spacing:.02em;}
.article-title{font-size:clamp(23px,3.4vw,34px);line-height:1.3;margin:14px 0 16px;color:var(--ink);}
.article-meta{display:flex;flex-wrap:wrap;gap:8px 20px;font-size:13.5px;color:var(--ink-2);
  padding-bottom:20px;border-bottom:1px solid var(--line);font-variant-numeric:tabular-nums;}
.article-meta span{display:inline-flex;align-items:center;gap:6px;}
.article-meta .dot{width:6px;height:6px;border-radius:50%;background:var(--brand);flex:none;}

.article-body{max-width:780px;font-size:17px;line-height:1.85;color:#26243f;padding-top:24px;}
.article-body p{margin:0 0 20px;}
.article-body h2{position:relative;font-size:23px;margin:38px 0 16px;padding-left:15px;}
.article-body h2::before{content:"";position:absolute;left:0;top:.16em;bottom:.16em;width:4px;
  border-radius:999px;background:var(--brand);}
.article-body h3{font-size:19px;margin:28px 0 12px;padding-bottom:8px;border-bottom:1px solid var(--line);}
.article-body h4{font-size:17px;margin:22px 0 10px;}
.article-body ul{margin:0 0 20px;padding-left:22px;list-style:disc;}
.article-body ol{margin:0 0 20px;padding-left:22px;list-style:decimal;}
.article-body li{margin:7px 0;}
.article-body blockquote{margin:22px 0;padding:16px 20px;background:#f3f7ff;color:var(--ink-2);
  border-left:4px solid var(--brand);border-radius:0 12px 12px 0;font-size:16px;}
.article-body img{border-radius:12px;margin:20px 0;box-shadow:var(--shadow);}
.article-body figure{margin:22px 0;}
.article-body figcaption{font-size:13px;color:var(--ink-2);text-align:center;margin-top:8px;}
.article-body table{width:100%;border-collapse:collapse;margin:22px 0;font-size:15px;display:block;overflow-x:auto;}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 13px;text-align:left;white-space:nowrap;}
.article-body th{background:#f6f8fc;font-weight:700;}
.article-body a{color:var(--brand-strong);text-decoration:underline;text-underline-offset:3px;}
.article-body code{background:#f1f4fa;padding:2px 6px;border-radius:6px;font-size:.92em;}
.article-body pre{background:#14122B;color:#e8eaf4;padding:16px 18px;border-radius:12px;
  overflow:auto;font-size:14px;line-height:1.7;margin:20px 0;}
.article-body pre code{background:transparent;color:inherit;padding:0;}
.article-body hr{border:0;border-top:1px solid var(--line);margin:30px 0;}

.article-empty{max-width:640px;padding:40px 0 10px;text-align:left;}
.article-empty .empty-icon{width:52px;height:52px;border-radius:16px;display:grid;place-items:center;
  background:rgba(255,122,69,.14);color:#c2410c;font-size:24px;font-weight:800;margin-bottom:18px;}
.article-empty h2{font-size:22px;margin-bottom:12px;}
.article-empty p{font-size:15.5px;color:var(--ink-2);margin-bottom:22px;}

.article-foot{margin-top:34px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between;}
.tag-list{display:flex;flex-wrap:wrap;gap:8px;}
.tag{display:inline-flex;align-items:center;padding:5px 13px;border-radius:999px;background:#f2f5fb;
  border:1px solid var(--line);font-size:13px;color:var(--ink-2);transition:.2s;}
.tag:hover{border-color:var(--brand);color:var(--brand-strong);background:#fff;}
.foot-back{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:700;color:var(--brand-strong);}
.foot-back:hover{color:var(--brand);}

/* ===== 侧栏 ===== */
.article-side{display:flex;flex-direction:column;gap:20px;}
.side-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow);padding:20px;}
.side-title{display:flex;align-items:center;gap:9px;font-size:15px;margin-bottom:14px;}
.side-title::before{content:"";width:7px;height:7px;border-radius:2px;background:var(--accent);}
.side-empty{font-size:13.5px;color:var(--ink-2);}
.toc-list li a{display:block;padding:7px 0 7px 12px;border-left:2px solid var(--line);
  font-size:14px;line-height:1.5;color:var(--ink-2);transition:.2s;}
.toc-list li a:hover{color:var(--brand-strong);border-color:var(--brand);}
.toc-list li.is-sub a{padding-left:24px;font-size:13.5px;}
.rank-list li{display:flex;gap:10px;align-items:flex-start;padding:10px 0;border-bottom:1px dashed var(--line);}
.rank-list li:last-child{border-bottom:0;padding-bottom:0;}
.rank-num{width:22px;height:22px;flex:none;margin-top:2px;border-radius:7px;display:grid;place-items:center;
  font-size:12px;font-weight:800;background:#f1f4fa;color:var(--ink-2);font-variant-numeric:tabular-nums;}
.rank-list li:nth-child(1) .rank-num{background:rgba(255,122,69,.16);color:#c2410c;}
.rank-list li:nth-child(2) .rank-num{background:rgba(123,92,255,.16);color:#5b3fe0;}
.rank-list li:nth-child(3) .rank-num{background:rgba(15,206,155,.18);color:var(--brand-strong);}
.rank-list li a{font-size:14px;line-height:1.5;color:var(--ink-2);transition:color .2s;}
.rank-list li a:hover{color:var(--brand-strong);}
.side-cta{background:linear-gradient(160deg,#1b1938,var(--dark));border-color:rgba(255,255,255,.08);}
.side-cta .side-title{color:#fff;}
.side-cta-title{font-size:16px;font-weight:800;color:#fff;margin-bottom:8px;}
.side-cta-text{font-size:13.5px;line-height:1.75;color:#a9adc7;margin-bottom:16px;}

/* ===== 相关推荐 ===== */
.rel-section{margin-top:52px;}
.section-head{display:flex;flex-wrap:wrap;gap:12px;align-items:flex-end;justify-content:space-between;margin-bottom:20px;}
.section-title{font-size:24px;}
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:700;color:var(--brand-strong);}
.text-link:hover{color:var(--brand);}
.rel-grid{display:grid;gap:18px;grid-template-columns:repeat(1,minmax(0,1fr));}
.rel-card{display:flex;flex-direction:column;background:var(--card);border:1px solid var(--line);
  border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;}
.rel-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:rgba(15,206,155,.45);}
.rel-thumb{aspect-ratio:16/9;overflow:hidden;background:#e9edf6;position:relative;}
.rel-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .32s ease;}
.rel-card:hover .rel-thumb img{transform:scale(1.04);}
.rel-body{padding:14px 16px 18px;display:flex;flex-direction:column;gap:8px;}
.rel-body h3{font-size:15.5px;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;
  -webkit-box-orient:vertical;overflow:hidden;transition:color .2s;}
.rel-card:hover .rel-body h3{color:var(--brand-strong);}
.rel-body p{font-size:13px;line-height:1.65;color:var(--ink-2);display:-webkit-box;
  -webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.rel-meta{font-size:12.5px;color:#8f93ae;font-variant-numeric:tabular-nums;margin-top:auto;}

/* ===== 底部 CTA ===== */
.cta-band{position:relative;overflow:hidden;margin-top:56px;padding:44px 28px;border-radius:22px;
  background:linear-gradient(150deg,#1c1a3a 0%,var(--dark) 62%);color:#fff;}
.cta-band::after{content:"";position:absolute;inset:0;pointer-events:none;opacity:.55;
  background-image:linear-gradient(rgba(255,255,255,.055) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.055) 1px,transparent 1px);
  background-size:36px 36px;}
.cta-inner{position:relative;z-index:2;max-width:640px;}
.cta-inner h2{font-size:clamp(22px,2.8vw,30px);line-height:1.34;margin-bottom:14px;}
.cta-inner p{font-size:15px;line-height:1.85;color:#b9bcd4;margin-bottom:26px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;}

/* ===== 页脚 ===== */
.site-footer{background:var(--dark);color:#c9cbe0;padding:56px 0 0;margin-top:64px;}
.footer-grid{display:grid;gap:32px;grid-template-columns:1fr;}
.footer-brand .brand-text{color:#fff;}
.footer-brand .brand-text small{color:#9aa0bd;}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.85;color:#a9adc7;max-width:340px;}
.footer-col h4{font-size:15px;color:#fff;margin-bottom:16px;}
.footer-col ul li{font-size:14px;margin-bottom:11px;color:#a9adc7;line-height:1.6;}
.footer-col ul li a{transition:color .2s;}
.footer-col ul li a:hover{color:var(--brand);}
.footer-bottom{margin-top:38px;border-top:1px solid rgba(255,255,255,.1);padding:18px 0 26px;
  display:flex;flex-wrap:wrap;gap:8px;justify-content:space-between;font-size:13px;color:#8f93ae;}

/* ===== 移动端固定条 ===== */
.mobile-bar{position:fixed;left:0;right:0;bottom:0;z-index:85;display:flex;gap:10px;align-items:center;
  padding:10px 14px calc(10px + env(safe-area-inset-bottom));
  background:rgba(255,255,255,.98);border-top:1px solid var(--line);box-shadow:0 -10px 26px rgba(20,18,43,.09);}
.mobile-bar .btn{flex:1;}

/* ===== 响应式 ===== */
@media (max-width:1023px){
  .search-box{display:none;}
  .nav-toggle{display:inline-flex;}
  .header-nav{display:none;background:#fff;}
  .header-nav.is-open{display:block;}
  .nav-inner{flex-direction:column;align-items:stretch;height:auto;padding:8px 0 14px;gap:2px;}
  .nav-link{padding:11px 14px;border-radius:12px;font-size:15px;}
}
@media (min-width:640px){
  .rel-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .article-card{padding:32px 30px;}
  .cta-band{padding:50px 44px;}
}
@media (min-width:768px){
  .footer-grid{grid-template-columns:1.7fr 1fr 1fr 1.15fr;}
  .container-x{padding:0 24px;}
}
@media (min-width:1024px){
  html body{padding-bottom:0;}
  .mobile-bar{display:none;}
  .article-layout{grid-template-columns:minmax(0,1fr) 300px;gap:30px;}
  .article-card{padding:40px 44px;}
  .article-side{position:sticky;top:132px;align-self:start;}
  .rel-grid{grid-template-columns:repeat(4,minmax(0,1fr));}
}
@media (min-width:1280px){
  .page-wrap{padding-top:34px;}
}

/* roulang page: category2 */
:root{
  --brand:#0FCE9B;
  --brand-strong:#06A87C;
  --accent:#FF7A45;
  --accent-2:#7B5CFF;
  --ink:#14122B;
  --ink-2:#4A4A63;
  --line:#E6E9F2;
  --bg:#F5F7FB;
  --card:#FFFFFF;
  --dark:#14122B;
  --ok:#16A34A;
  --warn:#F59E0B;
  --radius:16px;
  --radius-lg:20px;
  --shadow-sm:0 8px 24px rgba(20,18,43,.06);
  --shadow-md:0 14px 32px rgba(20,18,43,.12);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:system-ui,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{margin:0;font-weight:800;line-height:1.28;letter-spacing:-.01em}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none;transition:color .2s ease}
input,button,select,textarea{font:inherit;color:inherit}
button{cursor:pointer}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
.container-x{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
.section{padding:72px 0}
.section-sm{padding:52px 0}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;letter-spacing:.08em;color:var(--brand-strong);margin-bottom:10px}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:30px}
.section-head h2{font-size:clamp(22px,3vw,30px)}
.section-head p{color:var(--ink-2);font-size:15px;margin-top:10px;max-width:640px}
.link-more{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:700;color:var(--brand-strong)}
.link-more:hover{color:var(--ink)}
.link-more::after{content:"→";transition:transform .2s ease}
.link-more:hover::after{transform:translateX(3px)}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.94);
  backdrop-filter:blur(10px);
  border-bottom:1px solid transparent;
  transition:box-shadow .24s ease,border-color .24s ease;
}
.site-header.is-scrolled{border-bottom-color:var(--line);box-shadow:0 8px 20px rgba(20,18,43,.07)}
.header-top-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:70px}
.brand{display:inline-flex;align-items:center;gap:10px}
.brand-mark{width:38px;height:38px;border-radius:11px;background:linear-gradient(135deg,var(--brand),var(--brand-strong));color:#04261C;display:grid;place-items:center;font-weight:800;font-size:19px;box-shadow:0 6px 16px rgba(15,206,155,.32)}
.brand-text{display:flex;flex-direction:column;font-weight:800;font-size:17px;line-height:1.14}
.brand-text small{font-size:11px;font-weight:500;color:var(--ink-2);letter-spacing:.06em;margin-top:2px}
.header-actions{display:flex;align-items:center;gap:10px}
.search-box{display:flex;align-items:center;gap:6px;background:#fff;border:1px solid var(--line);border-radius:999px;padding:4px 4px 4px 14px;transition:border-color .2s ease,box-shadow .2s ease}
.search-box:focus-within{border-color:var(--brand);box-shadow:0 0 0 3px rgba(15,206,155,.16)}
.search-box input{border:0;background:transparent;outline:none;width:168px;font-size:14px;color:var(--ink)}
.search-box input::placeholder{color:#9AA0B4}
.search-box button{border:0;background:var(--dark);color:#fff;border-radius:999px;height:32px;padding:0 15px;font-size:13px;font-weight:600;transition:background .2s ease}
.search-box button:hover{background:var(--brand-strong)}
.nav-toggle{display:none;width:40px;height:40px;border:1px solid var(--line);border-radius:12px;background:#fff;place-items:center}
.nav-toggle span{position:relative;display:block;width:18px;height:2px;background:var(--ink);border-radius:2px}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);border-radius:2px;transition:transform .2s ease}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.header-nav{border-top:1px solid var(--line)}
.nav-inner{display:flex;align-items:center;gap:4px;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none}
.nav-inner::-webkit-scrollbar{display:none}
.nav-link{position:relative;padding:13px 12px;font-size:14.5px;font-weight:600;color:var(--ink-2);white-space:nowrap;border-bottom:3px solid transparent;transition:color .2s ease,border-color .2s ease}
.nav-link:hover{color:var(--brand-strong)}
.nav-link.is-active{color:var(--ink);border-bottom-color:var(--brand)}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:999px;
  font-size:15px;font-weight:700;border:1px solid transparent;white-space:nowrap;
  transition:transform .18s ease,box-shadow .18s ease,background-color .18s ease,color .18s ease,border-color .18s ease;
}
.btn-sm{height:36px;padding:0 16px;font-size:14px}
.btn-primary{background:var(--brand);color:#04261C;box-shadow:0 8px 20px rgba(15,206,155,.26)}
.btn-primary:hover{background:var(--brand-strong);color:#fff;transform:translateY(-1px);box-shadow:0 12px 26px rgba(6,168,124,.34)}
.btn-primary:active{transform:translateY(0);box-shadow:0 6px 14px rgba(6,168,124,.28)}
.btn-ghost{background:#fff;border-color:var(--line);color:var(--ink)}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand-strong);background:#F1FCF8;transform:translateY(-1px)}
.btn-on-dark{background:rgba(255,255,255,.10);border-color:rgba(255,255,255,.26);color:#fff}
.btn-on-dark:hover{background:rgba(255,255,255,.20);transform:translateY(-1px)}

/* ============ 分类 Hero ============ */
.cat-hero{
  position:relative;overflow:hidden;color:#fff;
  background-color:var(--dark);
  background-image:
    linear-gradient(115deg,rgba(20,18,43,.95) 0%,rgba(20,18,43,.82) 52%,rgba(123,92,255,.55) 100%),
    url('/assets/images/backpic/back-2.png');
  background-size:cover;
  background-position:center;
  padding:56px 0 66px;
}
.cat-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.5;
  background-image:
    linear-gradient(rgba(255,255,255,.06) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.06) 1px,transparent 1px);
  background-size:44px 44px;
}
.cat-hero .container-x{position:relative;z-index:2}
.crumb{display:flex;align-items:center;gap:8px;flex-wrap:wrap;font-size:13px;color:rgba(255,255,255,.68)}
.crumb a:hover{color:var(--brand)}
.crumb .sep{color:rgba(255,255,255,.35)}
.crumb .current{color:rgba(255,255,255,.92);font-weight:600}
.cat-hero h1{font-size:clamp(28px,4vw,40px);margin-top:16px;max-width:820px}
.cat-hero .hero-lead{margin-top:14px;max-width:700px;font-size:16.5px;color:rgba(255,255,255,.82)}
.chip-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.chip{display:inline-flex;align-items:center;gap:7px;height:30px;padding:0 13px;border-radius:999px;font-size:13px;font-weight:600;background:rgba(255,255,255,.10);border:1px solid rgba(255,255,255,.20);color:rgba(255,255,255,.92)}
.chip .dot{width:6px;height:6px;border-radius:50%;background:var(--brand)}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px;align-items:center}
.hero-back{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand);margin-top:18px}
.hero-back:hover{color:#fff}

/* ============ 大卡 ============ */
.feature-card{
  display:grid;grid-template-columns:minmax(0,1.02fr) minmax(0,1fr);
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  overflow:hidden;box-shadow:var(--shadow-sm);margin-bottom:26px;
  transition:box-shadow .22s ease,transform .22s ease;
}
.feature-card:hover{box-shadow:var(--shadow-md);transform:translateY(-2px)}
.feature-media{overflow:hidden;background:#EEF1F7;min-height:280px}
.feature-media img{width:100%;height:100%;object-fit:cover}
.feature-body{padding:32px 34px}
.feature-body h3{font-size:22px;margin-top:14px}
.feature-body > p{color:var(--ink-2);font-size:15px;margin-top:12px}
.slot-list{margin-top:18px}
.slot-item{display:flex;align-items:center;gap:14px;padding:12px 0;border-bottom:1px dashed var(--line)}
.slot-item:last-child{border-bottom:0}
.slot-time{font-variant-numeric:tabular-nums;font-weight:800;font-size:16px;min-width:62px;color:var(--ink)}
.slot-name{font-size:14.5px;color:var(--ink-2)}
.slot-tag{margin-left:auto;font-size:12px;font-weight:700;color:#067A5A;background:rgba(15,206,155,.14);padding:3px 10px;border-radius:999px;white-space:nowrap}

/* ============ 卡片矩阵 ============ */
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.cat-card{
  display:flex;flex-direction:column;background:#fff;
  border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;
  box-shadow:var(--shadow-sm);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.cat-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-md);border-color:#D8E3EE}
.cat-card-media{overflow:hidden;aspect-ratio:16/9;background:#EEF1F7}
.cat-card-media img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.cat-card:hover .cat-card-media img{transform:scale(1.03)}
.cat-card-body{padding:20px 22px 24px}
.cat-card-body h3{font-size:18.5px;margin-top:12px;transition:color .2s ease}
.cat-card:hover .cat-card-body h3{color:var(--brand-strong)}
.cat-card-body p{color:var(--ink-2);font-size:14.5px;margin-top:10px}
.badge{display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;font-size:12px;font-weight:700;background:rgba(15,206,155,.14);color:#067A5A}
.badge-purple{background:rgba(123,92,255,.12);color:#5A3FD6}
.badge-orange{background:rgba(255,122,69,.14);color:#C9541F}

/* ============ 步骤 ============ */
.step-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
.step-item{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px 24px;box-shadow:var(--shadow-sm);transition:transform .22s ease,box-shadow .22s ease}
.step-item:hover{transform:translateY(-2px);box-shadow:var(--shadow-md)}
.step-num{display:inline-flex;font-variant-numeric:tabular-nums;font-weight:800;font-size:26px;color:var(--accent-2);line-height:1}
.step-item h3{font-size:18px;margin-top:14px}
.step-item p{color:var(--ink-2);font-size:14.5px;margin-top:10px}

/* ============ 推荐列表 ============ */
.pick-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}
.pick-item{display:flex;gap:16px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:16px;box-shadow:var(--shadow-sm);transition:transform .22s ease,box-shadow .22s ease}
.pick-item:hover{transform:translateY(-2px);box-shadow:var(--shadow-md)}
.pick-media{flex:0 0 104px;width:104px;border-radius:12px;overflow:hidden;background:#EEF1F7}
.pick-media img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/3}
.pick-body h3{font-size:16.5px;transition:color .2s ease}
.pick-item:hover .pick-body h3{color:var(--brand-strong)}
.pick-body p{color:var(--ink-2);font-size:14px;margin-top:8px}
.pick-meta{display:inline-flex;align-items:center;gap:8px;font-size:12.5px;color:#8A90A6;margin-top:10px}

/* ============ FAQ ============ */
.faq-list{background:#fff;border:1px solid var(--line);border-radius:18px;overflow:hidden;box-shadow:var(--shadow-sm)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item:last-child{border-bottom:0}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:19px 24px;font-size:16px;font-weight:700;transition:background-color .2s ease,color .2s ease;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";font-size:20px;font-weight:700;color:var(--brand-strong);line-height:1;transition:transform .2s ease}
.faq-item summary:hover{background:#F8FBFE}
.faq-item[open] summary{color:var(--brand-strong)}
.faq-item[open] summary::after{content:"−"}
.faq-answer{padding:0 24px 20px;color:var(--ink-2);font-size:15px;max-width:860px}
.faq-answer p{margin-top:6px}

/* ============ CTA ============ */
.cta-band{
  color:#fff;padding:66px 0;
  background-color:var(--dark);
  background-image:
    radial-gradient(circle at 12% 18%,rgba(15,206,155,.24),transparent 55%),
    radial-gradient(circle at 88% 82%,rgba(123,92,255,.30),transparent 52%);
}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap}
.cta-inner h2{font-size:clamp(22px,3vw,30px);max-width:600px}
.cta-inner p{color:rgba(255,255,255,.74);font-size:15px;margin-top:12px;max-width:560px}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}

/* ============ 页脚 ============ */
.site-footer{background:var(--dark);color:rgba(255,255,255,.78);padding:60px 0 0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:34px;padding-bottom:42px}
.footer-brand .brand-text{color:#fff}
.footer-brand .brand-text small{color:rgba(255,255,255,.58)}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.85;max-width:350px;color:rgba(255,255,255,.66)}
.footer-col h4{font-size:15px;color:#fff;margin-bottom:16px}
.footer-col ul li{font-size:14px;margin-bottom:11px;color:rgba(255,255,255,.66);line-height:1.7}
.footer-col a:hover{color:var(--brand)}
.footer-bottom{border-top:1px solid rgba(255,255,255,.10);padding:18px 0 30px;display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;font-size:13px;color:rgba(255,255,255,.5)}

/* ============ 移动端底栏 ============ */
.mobile-bar{display:none}

/* ============ 响应式 ============ */
@media (max-width:1023px){
  .section{padding:56px 0}
  .section-sm{padding:44px 0}
  body{padding-bottom:74px}
  .search-box{display:none}
  .nav-toggle{display:grid}
  .header-nav{position:absolute;left:0;right:0;top:100%;background:#fff;border-top:1px solid var(--line);box-shadow:0 18px 30px rgba(20,18,43,.10);display:none}
  .header-nav.is-open{display:block}
  .nav-inner{flex-direction:column;align-items:stretch;gap:2px;padding:10px 16px 18px;overflow:visible}
  .nav-link{border-bottom:0;border-radius:12px;padding:12px 14px}
  .nav-link.is-active{background:rgba(15,206,155,.14);color:var(--ink);border-bottom-color:transparent}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .feature-card{grid-template-columns:1fr}
  .feature-media{min-height:220px;max-height:280px}
  .feature-body{padding:26px 24px 30px}
  .step-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .mobile-bar{
    display:flex;position:fixed;left:0;right:0;bottom:0;z-index:70;gap:10px;
    padding:10px 16px calc(10px + env(safe-area-inset-bottom));
    background:rgba(255,255,255,.97);border-top:1px solid var(--line);
    box-shadow:0 -8px 20px rgba(20,18,43,.08);
  }
  .mobile-bar .btn{flex:1}
}
@media (max-width:767px){
  .container-x{padding:0 16px}
  .header-top-inner{min-height:64px}
  .cat-hero{padding:44px 0 52px}
  .cat-hero .hero-lead{font-size:15.5px}
  .pick-list{grid-template-columns:1fr}
  .pick-item{flex-direction:column}
  .pick-media{width:100%;flex:1 1 auto}
  .pick-media img{aspect-ratio:16/9}
  .card-grid{grid-template-columns:1fr}
  .cta-inner{flex-direction:column;align-items:flex-start}
  .footer-grid{grid-template-columns:1fr}
  .faq-item summary{padding:16px 18px;font-size:15.5px}
  .faq-answer{padding:0 18px 18px}
  .slot-item{flex-wrap:wrap;gap:6px}
  .slot-tag{margin-left:0}
}

/* roulang page: category3 */
:root{
  --brand:#0FCE9B;
  --brand-strong:#06A87C;
  --accent:#FF7A45;
  --accent-2:#7B5CFF;
  --ink:#14122B;
  --ink-2:#4A4A63;
  --line:#E6E9F2;
  --bg:#F5F7FB;
  --card:#FFFFFF;
  --dark:#14122B;
  --ok:#16A34A;
  --warn:#F59E0B;
  --radius-card:16px;
  --radius-pill:999px;
  --shadow-card:0 8px 24px rgba(20,18,43,.06);
  --shadow-card-hover:0 14px 32px rgba(20,18,43,.12);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:system-ui,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  background:var(--bg);
  color:var(--ink);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{margin:0;line-height:1.28;font-weight:800;letter-spacing:-.2px}
p{margin:0}
a{color:inherit;text-decoration:none}
img{max-width:100%;height:auto;display:block}
button,input{font-family:inherit}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:8px}
.tnum{font-variant-numeric:tabular-nums}

.container-x{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
.section{padding:80px 0}
.section-tight{padding:56px 0}
@media (max-width:768px){
  .section{padding:52px 0}
  .section-tight{padding:40px 0}
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--radius-pill);
  font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;
  transition:background-color .2s ease,color .2s ease,transform .2s ease,box-shadow .2s ease,border-color .2s ease;
  white-space:nowrap;
}
.btn.btn-sm{height:36px;padding:0 16px;font-size:13px}
.btn.btn-primary{background:var(--brand);color:#fff;box-shadow:0 6px 16px rgba(15,206,155,.28)}
.btn.btn-primary:hover{background:var(--brand-strong);transform:translateY(-1px);box-shadow:0 10px 22px rgba(6,168,124,.32);color:#fff}
.btn.btn-primary:active{transform:translateY(0)}
.btn.btn-ghost{background:#fff;border-color:var(--line);color:var(--ink)}
.btn.btn-ghost:hover{border-color:var(--brand);color:var(--brand-strong);background:#F1FFFA;transform:translateY(-1px)}
.btn.btn-ghost-dark{background:transparent;border-color:rgba(255,255,255,.26);color:#fff}
.btn.btn-ghost-dark:hover{border-color:var(--brand);background:rgba(255,255,255,.08);color:#fff;transform:translateY(-1px)}
.btn:focus-visible{outline:2px solid var(--brand);outline-offset:2px}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(255,255,255,.94);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:0 6px 20px rgba(20,18,43,.08)}
.header-top-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;height:74px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:38px;height:38px;border-radius:12px;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--brand),var(--brand-strong));
  color:#fff;font-weight:800;font-size:18px;line-height:1;
}
.brand-text{display:flex;flex-direction:column;font-weight:800;font-size:17px;line-height:1.2}
.brand-text small{font-weight:500;font-size:11px;color:var(--ink-2);letter-spacing:.6px;margin-top:2px}
.header-actions{display:flex;align-items:center;gap:12px}
.search-box{
  display:flex;align-items:center;height:40px;padding:4px 4px 4px 4px;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-pill);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.search-box:focus-within{border-color:var(--brand);box-shadow:0 0 0 3px rgba(15,206,155,.16)}
.search-box input{border:0;outline:none;background:transparent;padding:0 12px;width:190px;font-size:14px;color:var(--ink)}
.search-box input::placeholder{color:#9A9AB0}
.search-box button{
  border:0;background:var(--brand);color:#fff;border-radius:var(--radius-pill);
  height:32px;padding:0 16px;font-size:13px;font-weight:600;cursor:pointer;transition:background-color .2s ease;
}
.search-box button:hover{background:var(--brand-strong)}
.nav-toggle{
  display:none;place-items:center;width:40px;height:40px;
  border:1px solid var(--line);border-radius:12px;background:#fff;cursor:pointer;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--ink);position:relative}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;border-radius:2px;background:var(--ink);
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.header-nav{border-top:1px solid var(--line);background:#fff}
.nav-inner{display:flex;gap:6px;overflow-x:auto;padding:10px 20px;scrollbar-width:none}
.nav-inner::-webkit-scrollbar{display:none}
.nav-link{
  padding:8px 15px;border-radius:var(--radius-pill);font-size:14px;color:var(--ink-2);
  white-space:nowrap;transition:color .2s ease,background-color .2s ease;
}
.nav-link:hover{color:var(--brand-strong);background:#EAFBF5}
.nav-link.is-active{color:var(--brand-strong);background:#E4FFF6;font-weight:700}
@media (max-width:1023.98px){
  .header-top-inner{height:64px}
  .search-box{display:none}
  .nav-toggle{display:grid}
  .header-nav{display:none;border-top:1px solid var(--line)}
  .header-nav.open{display:block}
  .nav-inner{flex-direction:column;align-items:stretch;padding:10px 20px 16px;gap:4px}
  .nav-link{border-radius:12px;padding:10px 14px}
}
@media (min-width:1024px){
  .header-nav{display:block}
  .nav-toggle{display:none}
  .search-box{display:flex}
}

/* ---------- Hero ---------- */
.hero-dark{
  position:relative;overflow:hidden;color:#fff;
  background:
    linear-gradient(120deg,rgba(20,18,43,.96) 0%,rgba(20,18,43,.9) 46%,rgba(6,168,124,.62) 100%),
    url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  padding:70px 0 84px;
}
.hero-dark::before{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.5;
  background-image:linear-gradient(rgba(255,255,255,.07) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.07) 1px,transparent 1px);
  background-size:46px 46px;
}
.hero-grid{position:relative;z-index:1;display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.62);margin-bottom:16px}
.crumb a{transition:color .2s ease}
.crumb a:hover{color:var(--brand)}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:var(--radius-pill);
  border:1px solid rgba(15,206,155,.4);background:rgba(15,206,155,.14);
  color:#7CF0CB;font-size:13px;font-weight:600;
}
h1.hero-title{font-size:clamp(30px,4.4vw,44px);margin:18px 0 16px;color:#fff}
.hero-lead{color:rgba(255,255,255,.82);font-size:17px;max-width:620px}
.hero-cta{display:flex;align-items:center;gap:18px;flex-wrap:wrap;margin-top:28px}
.hero-link{color:rgba(255,255,255,.82);font-size:15px;font-weight:600;border-bottom:1px solid rgba(255,255,255,.3);padding-bottom:2px;transition:color .2s ease,border-color .2s ease}
.hero-link:hover{color:var(--brand);border-color:var(--brand)}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.badge-outline{padding:6px 12px;border-radius:var(--radius-pill);border:1px solid rgba(255,255,255,.22);font-size:12px;color:rgba(255,255,255,.82)}
.hero-media{position:relative}
.hero-media img{
  width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--radius-card);
  border:1px solid rgba(255,255,255,.14);box-shadow:0 24px 48px rgba(0,0,0,.35);
}
.hero-media::after{
  content:"";position:absolute;right:-10px;bottom:-10px;width:56px;height:56px;border-radius:14px;
  background:linear-gradient(135deg,var(--accent),var(--accent-2));opacity:.85;z-index:-1;
}
@media (max-width:1023.98px){
  .hero-grid{grid-template-columns:1fr;gap:34px}
  .hero-dark{padding:52px 0 62px}
}
@media (max-width:520px){
  .hero-cta{gap:14px}
  .hero-cta .btn{width:100%}
}

/* ---------- 通用板块头部 ---------- */
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;flex-wrap:wrap;margin-bottom:36px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;color:var(--brand-strong);letter-spacing:.6px}
.eyebrow::before{content:"";width:18px;height:2px;border-radius:2px;background:var(--brand)}
h2.section-title{font-size:clamp(24px,3vw,32px);margin-top:10px}
.section-desc{color:var(--ink-2);font-size:15px;max-width:660px;margin-top:10px}
.text-link{color:var(--brand-strong);font-weight:700;font-size:14px;transition:color .2s ease}
.text-link:hover{color:var(--brand)}
.tag{display:inline-block;padding:4px 10px;border-radius:8px;background:#E9FBF6;color:#067A5B;font-size:12px;font-weight:600}
.tag-accent{background:#FFF0E9;color:#C2491B}
.tag-purple{background:#F0ECFF;color:#5B3FD6}

/* ---------- 时间线 ---------- */
.timeline{position:relative;margin-top:8px}
.tl-item{position:relative;padding-left:86px;padding-bottom:38px}
.tl-item:last-child{padding-bottom:0}
.tl-item::before{
  content:"";position:absolute;left:23px;top:52px;bottom:0;width:2px;
  background:linear-gradient(180deg,var(--line),rgba(230,233,242,.2));
}
.tl-item:last-child::before{display:none}
.tl-node{
  position:absolute;left:0;top:0;width:48px;height:48px;border-radius:14px;
  display:grid;place-items:center;background:#fff;border:1px solid var(--line);
  color:var(--brand-strong);font-weight:800;font-size:16px;
  box-shadow:var(--shadow-card);font-variant-numeric:tabular-nums;
}
.tl-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:22px 24px;box-shadow:var(--shadow-card);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.tl-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-card-hover);border-color:#D6F5EA}
.tl-card h3{font-size:18px;margin-bottom:8px}
.tl-card p{color:var(--ink-2);font-size:15px}
.tl-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
@media (max-width:640px){
  .tl-item{padding-left:62px;padding-bottom:28px}
  .tl-node{width:40px;height:40px;border-radius:12px;font-size:14px}
  .tl-item::before{left:19px;top:44px}
  .tl-card{padding:18px}
}

/* ---------- 改动拆解 ---------- */
.changes-grid{display:grid;grid-template-columns:1.15fr 1fr;gap:24px}
.change-stack{display:grid;gap:24px}
.change-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:24px;box-shadow:var(--shadow-card);overflow:hidden;
  transition:transform .22s ease,box-shadow .22s ease;
}
.change-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-card-hover)}
.change-card h3{font-size:19px;margin-bottom:10px}
.change-card p{color:var(--ink-2);font-size:15px}
.change-card img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:12px;margin-bottom:18px}
.change-stack .change-card img{aspect-ratio:16/9}
@media (max-width:900px){
  .changes-grid{grid-template-columns:1fr}
}

/* ---------- 清单 + 图 ---------- */
.prep-grid{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center}
.checklist li{
  display:flex;gap:14px;align-items:flex-start;padding:16px 0;border-bottom:1px dashed var(--line);
}
.checklist li:last-child{border-bottom:0}
.checklist .idx{
  flex:0 0 auto;width:28px;height:28px;border-radius:9px;display:grid;place-items:center;
  background:#E9FBF6;color:var(--brand-strong);font-size:13px;font-weight:800;font-variant-numeric:tabular-nums;
}
.checklist h3{font-size:16px;margin-bottom:4px}
.checklist p{font-size:14px;color:var(--ink-2)}
.prep-media img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--radius-card);box-shadow:var(--shadow-card);border:1px solid var(--line)}
@media (max-width:860px){
  .prep-grid{grid-template-columns:1fr;gap:28px}
}

/* ---------- 推荐列表 ---------- */
.reco-list{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-card);overflow:hidden;
}
.reco-item{
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:18px 24px;border-bottom:1px solid var(--line);transition:background-color .2s ease;
}
.reco-item:last-child{border-bottom:0}
.reco-item:hover{background:#F8FFFC}
.reco-item h3{font-size:16px;margin-bottom:4px}
.reco-item p{font-size:13.5px;color:var(--ink-2)}
.reco-item .go{
  flex:0 0 auto;font-size:13px;font-weight:700;color:var(--brand-strong);
  border:1px solid #CFF6E9;background:#F1FFFA;border-radius:var(--radius-pill);padding:6px 14px;
  transition:background-color .2s ease,color .2s ease,border-color .2s ease;
}
.reco-item:hover .go{background:var(--brand);color:#fff;border-color:var(--brand)}
@media (max-width:640px){
  .reco-item{flex-direction:column;align-items:flex-start;gap:12px;padding:16px 18px}
}

/* ---------- FAQ ---------- */
.faq{max-width:860px;margin:0 auto}
.faq details{
  background:var(--card);border:1px solid var(--line);border-radius:14px;
  margin-bottom:12px;overflow:hidden;transition:box-shadow .2s ease,border-color .2s ease;
}
.faq details[open]{box-shadow:var(--shadow-card);border-color:#D6F5EA}
.faq summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 22px;font-size:16px;font-weight:700;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{
  content:"+";font-size:20px;line-height:1;color:var(--brand-strong);font-weight:700;
  transition:transform .24s ease;flex:0 0 auto;
}
.faq details[open] summary::after{transform:rotate(45deg)}
.faq-answer{padding:0 22px 20px;color:var(--ink-2);font-size:15px;animation:faqIn .22s ease}
@keyframes faqIn{from{opacity:0;transform:translateY(-4px)}to{opacity:1;transform:none}}

/* ---------- 底部 CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;border-radius:24px;background:var(--dark);color:#fff;
  padding:58px 48px;text-align:center;
}
.cta-band::before{
  content:"";position:absolute;inset:0;opacity:.45;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.06) 1px,transparent 1px);
  background-size:42px 42px;
}
.cta-band::after{
  content:"";position:absolute;width:280px;height:280px;right:-90px;top:-120px;border-radius:50%;
  background:radial-gradient(circle,rgba(15,206,155,.45),transparent 68%);
}
.cta-inner{position:relative;z-index:1}
.cta-band h2{font-size:clamp(24px,3vw,32px);color:#fff}
.cta-band p{color:rgba(255,255,255,.78);font-size:16px;max-width:620px;margin:14px auto 0}
.cta-actions{display:flex;justify-content:center;gap:14px;flex-wrap:wrap;margin-top:28px}
@media (max-width:640px){
  .cta-band{padding:40px 22px;border-radius:18px}
  .cta-actions .btn{width:100%}
}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--dark);color:#fff;padding:64px 0 0;margin-top:8px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.15fr;gap:36px}
.footer-brand .brand-text{color:#fff}
.footer-brand .brand-text small{color:rgba(255,255,255,.6)}
.footer-brand p{color:rgba(255,255,255,.68);font-size:14px;line-height:1.85;margin-top:16px;max-width:340px}
.footer-col h4{font-size:15px;margin-bottom:16px;color:#fff}
.footer-col ul{display:grid;gap:10px}
.footer-col li{color:rgba(255,255,255,.6);font-size:13.5px;line-height:1.7}
.footer-col a{color:rgba(255,255,255,.72);font-size:13.5px;transition:color .2s ease}
.footer-col a:hover{color:var(--brand)}
.footer-bottom{
  margin-top:48px;border-top:1px solid rgba(255,255,255,.1);padding:20px 0 26px;
  display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.55);
}
@media (max-width:900px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:560px){
  .footer-grid{grid-template-columns:1fr}
  .site-footer{padding-top:48px}
}

/* ---------- 移动端固定条 ---------- */
.mobile-bar{
  position:fixed;left:0;right:0;bottom:0;z-index:60;
  display:none;gap:10px;align-items:center;
  padding:10px 16px calc(10px + env(safe-area-inset-bottom));
  background:#fff;border-top:1px solid var(--line);
  box-shadow:0 -8px 24px rgba(20,18,43,.08);
}
.mobile-bar .btn{flex:1 1 0;min-width:0}
@media (max-width:1023.98px){
  .mobile-bar{display:flex}
  body{padding-bottom:78px}
}

/* roulang page: category4 */
:root{
  --brand:#0FCE9B;
  --brand-strong:#06A87C;
  --brand-soft:rgba(15,206,155,.14);
  --accent:#FF7A45;
  --accent-2:#7B5CFF;
  --ink:#14122B;
  --ink-2:#4A4A63;
  --muted:#7C819A;
  --line:#E6E9F2;
  --bg:#F5F7FB;
  --card:#FFFFFF;
  --dark:#14122B;
  --ok:#16A34A;
  --warn:#F59E0B;
  --radius:16px;
  --radius-sm:12px;
  --shadow:0 8px 24px rgba(20,18,43,.06);
  --shadow-hover:0 14px 32px rgba(20,18,43,.12);
  --container:1200px;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:system-ui,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:var(--bg);
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color .2s ease,opacity .2s ease;}
button{font:inherit;color:inherit;cursor:pointer;border:0;background:transparent;}
input,textarea,select{font:inherit;}
h1,h2,h3,h4{margin:0;font-weight:800;line-height:1.3;letter-spacing:-.01em;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--brand-strong);outline-offset:2px;border-radius:8px;}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0;}

.container-x{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px;}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:70;
  background:rgba(255,255,255,.94);
  backdrop-filter:saturate(150%) blur(10px);
  border-bottom:1px solid transparent;
  transition:box-shadow .2s ease,border-color .2s ease;
}
.site-header.is-scrolled{border-bottom-color:var(--line);box-shadow:0 8px 24px rgba(20,18,43,.06);}
.header-top-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:68px;}
.brand{display:inline-flex;align-items:center;gap:10px;}
.brand-mark{
  width:38px;height:38px;flex:0 0 38px;border-radius:11px;
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,var(--brand) 0%,var(--brand-strong) 55%,var(--accent-2) 100%);
  color:#07231B;font-weight:800;font-size:19px;
  box-shadow:0 6px 16px rgba(15,206,155,.28);
}
.brand-text{display:flex;flex-direction:column;font-size:17px;font-weight:800;color:var(--ink);line-height:1.2;}
.brand-text small{font-size:11px;font-weight:500;color:var(--muted);letter-spacing:.06em;}
.header-actions{display:flex;align-items:center;gap:12px;}
.search-box{
  display:flex;align-items:center;gap:0;
  border:1px solid var(--line);border-radius:999px;background:#fff;
  padding:3px 3px 3px 4px;transition:border-color .2s ease,box-shadow .2s ease;
}
.search-box:focus-within{border-color:var(--brand);box-shadow:0 0 0 3px rgba(15,206,155,.16);}
.search-box input{
  border:0;outline:0;background:transparent;width:190px;padding:7px 12px;font-size:14px;color:var(--ink);
}
.search-box input::placeholder{color:#A2A7BC;}
.search-box button{
  border-radius:999px;background:var(--brand);color:#062A20;
  font-size:14px;font-weight:700;padding:7px 16px;transition:background .2s ease,color .2s ease;
}
.search-box button:hover{background:var(--brand-strong);color:#fff;}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:999px;border:1px solid var(--line);
  align-items:center;justify-content:center;background:#fff;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;position:relative;}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);border-radius:2px;
}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}

.header-nav{background:rgba(255,255,255,.94);border-top:1px solid var(--line);}
.nav-inner{display:flex;gap:6px;padding:9px 20px;overflow-x:auto;scrollbar-width:none;}
.nav-inner::-webkit-scrollbar{display:none;}
.nav-link{
  white-space:nowrap;padding:8px 15px;border-radius:999px;
  font-size:15px;font-weight:600;color:var(--ink-2);
  transition:background .2s ease,color .2s ease;
}
.nav-link:hover{background:#EEF2F9;color:var(--ink);}
.nav-link.is-active{background:var(--brand-soft);color:var(--brand-strong);}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:999px;
  font-size:15px;font-weight:700;line-height:1;
  transition:transform .18s ease,background .2s ease,color .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.btn-sm{height:38px;padding:0 18px;font-size:14px;}
.btn-primary{background:var(--brand);color:#062A20;box-shadow:0 8px 18px rgba(15,206,155,.24);}
.btn-primary:hover{background:var(--brand-strong);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-hover);}
.btn-primary:active{transform:translateY(0);box-shadow:0 6px 14px rgba(15,206,155,.2);}
.btn-ghost{border:1px solid var(--line);color:var(--ink);background:#fff;}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand-strong);background:#F3FCF9;}
.btn-on-dark{border:1px solid rgba(255,255,255,.28);color:#fff;background:rgba(255,255,255,.06);}
.btn-on-dark:hover{background:rgba(255,255,255,.14);color:#fff;transform:translateY(-1px);}

/* ---------- hero ---------- */
.category-hero{
  position:relative;overflow:hidden;color:#fff;
  background:var(--dark) url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  padding:60px 0 54px;
}
.category-hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(115deg,rgba(20,18,43,.95) 0%,rgba(20,18,43,.86) 46%,rgba(20,18,43,.66) 100%);
}
.category-hero::after{
  content:"";position:absolute;inset:0;opacity:.5;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:44px 44px;
  mask-image:linear-gradient(90deg,rgba(0,0,0,.9),transparent 78%);
}
.hero-inner{position:relative;z-index:2;max-width:860px;}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.68);}
.crumb a:hover{color:var(--brand);}
.crumb .sep{opacity:.5;}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;margin-top:18px;
  padding:5px 13px;border-radius:999px;border:1px solid rgba(255,255,255,.22);
  background:rgba(255,255,255,.07);font-size:13px;font-weight:600;color:#E9FFF8;
}
.hero-tag i{width:7px;height:7px;border-radius:2px;background:var(--brand);display:block;}
.hero-title{font-size:clamp(28px,4vw,40px);margin:16px 0 14px;line-height:1.25;}
.hero-lead{font-size:17px;color:rgba(255,255,255,.86);max-width:640px;}
.hero-actions{display:flex;flex-wrap:wrap;align-items:center;gap:14px;margin-top:26px;}
.link-back{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand);}
.link-back:hover{color:#5CF0C4;}

/* ---------- sections ---------- */
.section{padding:72px 0;}
.section-tight{padding:56px 0;}
.section-head{max-width:760px;margin-bottom:32px;}
.section-eyebrow{
  display:inline-block;font-size:12px;font-weight:800;letter-spacing:.12em;
  color:var(--brand-strong);background:var(--brand-soft);
  padding:5px 12px;border-radius:999px;margin-bottom:14px;
}
.section-title{font-size:clamp(22px,3vw,30px);}
.section-sub{margin-top:12px;color:var(--ink-2);font-size:15.5px;}

/* ---------- compare table ---------- */
.table-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden;}
.table-scroll{overflow-x:auto;}
table.compare{width:100%;min-width:780px;border-collapse:collapse;}
table.compare thead th{
  background:#F2F6FC;color:var(--ink);font-size:15px;font-weight:700;
  padding:16px 18px;text-align:left;border-bottom:1px solid var(--line);white-space:nowrap;
}
table.compare thead th:nth-child(2){color:var(--brand-strong);}
table.compare thead th:nth-child(4){color:var(--accent-2);}
table.compare tbody th{
  text-align:left;font-size:15px;font-weight:700;color:var(--ink);
  background:#FAFCFF;padding:15px 18px;border-bottom:1px solid var(--line);white-space:nowrap;
}
table.compare tbody td{
  padding:15px 18px;border-bottom:1px solid var(--line);
  color:var(--ink-2);font-size:15px;vertical-align:top;
}
table.compare tbody tr:hover td,table.compare tbody tr:hover th{background:#F6FAFF;}
table.compare tbody tr:last-child th,table.compare tbody tr:last-child td{border-bottom:0;}
.table-note{margin-top:14px;font-size:13.5px;color:var(--muted);}
.pill-ok{display:inline-block;background:rgba(22,163,74,.12);color:#15803D;font-size:12px;font-weight:700;padding:3px 10px;border-radius:999px;}
.pill-warn{display:inline-block;background:rgba(245,158,11,.14);color:#B45309;font-size:12px;font-weight:700;padding:3px 10px;border-radius:999px;}
.pill-accent{display:inline-block;background:rgba(123,92,255,.12);color:#5B3EE0;font-size:12px;font-weight:700;padding:3px 10px;border-radius:999px;}

/* ---------- steps ---------- */
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;}
.step{
  position:relative;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:24px 22px;box-shadow:var(--shadow);transition:transform .2s ease,box-shadow .2s ease;
}
.step:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);}
.step-num{
  font-variant-numeric:tabular-nums;font-size:13px;font-weight:800;letter-spacing:.1em;
  color:var(--accent-2);
}
.step h3{font-size:18px;margin:10px 0 8px;}
.step p{color:var(--ink-2);font-size:15px;}
.step-bar{margin-top:16px;height:4px;border-radius:999px;background:linear-gradient(90deg,var(--brand),rgba(15,206,155,.15));}

/* ---------- priority list ---------- */
.priority-list{display:grid;gap:14px;}
.priority-item{
  display:flex;gap:18px;align-items:flex-start;
  background:var(--card);border:1px solid var(--line);border-left:4px solid var(--brand);
  border-radius:var(--radius-sm);padding:20px 22px;box-shadow:var(--shadow);
}
.priority-item.is-warn{border-left-color:var(--warn);}
.priority-item.is-violet{border-left-color:var(--accent-2);}
.priority-rank{
  flex:0 0 44px;width:44px;height:44px;border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  font-weight:800;font-size:15px;font-variant-numeric:tabular-nums;
  background:#EEF2F9;color:var(--ink-2);
}
.priority-item.is-warn .priority-rank{background:rgba(245,158,11,.14);color:#B45309;}
.priority-item.is-violet .priority-rank{background:rgba(123,92,255,.12);color:#5B3EE0;}
.priority-item h3{font-size:17px;margin-bottom:6px;}
.priority-item p{color:var(--ink-2);font-size:15px;}

/* ---------- gift cards ---------- */
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.pack-card{
  display:flex;flex-direction:column;overflow:hidden;
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow);transition:transform .2s ease,box-shadow .2s ease;
}
.pack-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);}
.pack-media{position:relative;aspect-ratio:16/9;overflow:hidden;background:#E9EDF6;}
.pack-media img{width:100%;height:100%;object-fit:cover;transition:transform .28s ease;}
.pack-card:hover .pack-media img{transform:scale(1.03);}
.pack-body{display:flex;flex-direction:column;gap:10px;padding:20px;flex:1;}
.pack-badge{
  align-self:flex-start;background:var(--brand-soft);color:var(--brand-strong);
  font-size:12px;font-weight:700;padding:4px 11px;border-radius:999px;
}
.pack-body h3{font-size:18px;line-height:1.45;}
.pack-card:hover .pack-body h3{color:var(--brand-strong);}
.pack-body p{color:var(--ink-2);font-size:14.5px;}
.pack-meta{
  margin-top:auto;display:flex;flex-wrap:wrap;gap:8px 14px;
  padding-top:12px;border-top:1px solid var(--line);
  font-size:13px;color:var(--muted);font-variant-numeric:tabular-nums;
}
.pack-link{align-self:flex-start;font-size:14px;font-weight:700;color:var(--brand-strong);}
.pack-link:hover{color:var(--ink);}

/* ---------- faq ---------- */
.faq-list{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden;}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item:last-child{border-bottom:0;}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 22px;font-size:16px;font-weight:700;text-align:left;color:var(--ink);
  transition:background .2s ease;
}
.faq-q:hover{background:#F8FAFF;}
.faq-icon{position:relative;flex:0 0 22px;width:22px;height:22px;}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:3px;top:10px;width:16px;height:2px;border-radius:2px;
  background:var(--brand-strong);transition:transform .24s ease,opacity .24s ease;
}
.faq-icon::after{transform:rotate(90deg);}
.faq-item.is-open .faq-icon::after{transform:rotate(0deg);opacity:0;}
.faq-a{max-height:0;overflow:hidden;transition:max-height .24s ease,padding .24s ease;}
.faq-item.is-open .faq-a{max-height:360px;padding-bottom:20px;}
.faq-a p{padding:0 22px;color:var(--ink-2);font-size:15px;}

/* ---------- cta band ---------- */
.cta-band{
  position:relative;overflow:hidden;color:#fff;background:var(--dark);
  border-radius:24px;padding:52px 48px;
}
.cta-band::after{
  content:"";position:absolute;right:-40px;top:-40px;width:280px;height:280px;border-radius:50%;
  background:radial-gradient(circle,rgba(15,206,155,.34),transparent 68%);
}
.cta-inner{position:relative;z-index:2;max-width:660px;}
.cta-band h2{font-size:clamp(22px,3vw,30px);margin-bottom:12px;}
.cta-band p{color:rgba(255,255,255,.78);font-size:15.5px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:26px;}

/* ---------- footer ---------- */
.site-footer{background:var(--dark);color:rgba(255,255,255,.72);padding:64px 0 0;margin-top:72px;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.1fr;gap:32px;padding-bottom:40px;}
.footer-brand .brand-text{color:#fff;}
.footer-brand .brand-text small{color:rgba(255,255,255,.5);}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.85;max-width:350px;}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:16px;font-weight:700;}
.footer-col li{font-size:14px;margin-bottom:10px;line-height:1.6;}
.footer-col a:hover{color:var(--brand);}
.footer-bottom{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  padding:20px 0;border-top:1px solid rgba(255,255,255,.1);
  font-size:13px;color:rgba(255,255,255,.55);
}

/* ---------- mobile bar ---------- */
.mobile-bar{
  position:fixed;left:0;right:0;bottom:0;z-index:80;display:none;gap:12px;
  background:#fff;border-top:1px solid var(--line);
  box-shadow:0 -6px 20px rgba(20,18,43,.08);
  padding:10px 16px calc(10px + env(safe-area-inset-bottom));
}
.mobile-bar .btn{flex:1;}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  .steps{grid-template-columns:repeat(2,minmax(0,1fr));}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  body{padding-bottom:78px;}
  .mobile-bar{display:flex;}
  .cta-band{padding:42px 32px;}
}
@media (max-width:1023px){
  .header-nav{display:none;}
  .header-nav.is-open{display:block;}
  .nav-inner{flex-direction:column;gap:4px;padding:10px 20px 18px;overflow:visible;}
  .nav-link{width:100%;}
  .nav-toggle{display:inline-flex;}
  .search-box{display:none;}
}
@media (max-width:768px){
  .section{padding:52px 0;}
  .section-tight{padding:42px 0;}
  .category-hero{padding:44px 0 42px;}
  .hero-lead{font-size:16px;}
  .steps{grid-template-columns:1fr;}
  .card-grid{grid-template-columns:1fr;}
  .priority-item{padding:18px;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  .cta-band{padding:34px 22px;border-radius:18px;}
  .page-title-inline{font-size:15px;}
}
@media (max-width:520px){
  .container-x{padding:0 16px;}
  .hero-actions{gap:10px;}
  .hero-actions .btn{width:100%;}
  .link-back{margin-top:2px;}
  .faq-q{font-size:15px;padding:18px 16px;}
  .faq-a p{padding:0 16px;}
}