/* roulang page: index */
:root{
  --c-brand:#0F6B5C;
  --c-brand-600:#0C5A4D;
  --c-brand-300:#62C9B4;
  --c-brand-tint:#E7F4F0;
  --c-action:#F2643C;
  --c-action-600:#D9502B;
  --c-accent:#FFC24B;
  --c-bg:#F5F3EE;
  --c-surface:#FFFFFF;
  --c-dark:#0B1F1B;
  --c-ink:#13231E;
  --c-ink-2:#4A5F58;
  --c-line:#DCE7E2;
  --r-sm:10px;
  --r-md:16px;
  --r-lg:24px;
  --r-xl:32px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(11,31,27,.04),0 8px 24px -12px rgba(11,31,27,.12);
  --sh-2:0 24px 48px -24px rgba(15,107,92,.28);
  --grad-brand:linear-gradient(120deg,#0F6B5C 0%,#17A184 55%,#7FD8C0 100%);
  --grad-badge:linear-gradient(135deg,#FFC24B,#FFE1A3);
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--c-ink);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;transition:color .18s var(--ease);}
button,input,select,textarea{font:inherit;color:inherit;}
button{cursor:pointer;border:0;background:none;}
:focus-visible{outline:2px solid var(--c-brand);outline-offset:2px;border-radius:4px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.num{font-variant-numeric:tabular-nums;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;line-height:1;letter-spacing:.01em;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
  white-space:nowrap;
}
.btn-primary{
  background:linear-gradient(135deg,#FF7A52,#F2643C 60%,#D9502B);
  color:#fff;box-shadow:0 14px 28px -14px rgba(242,100,60,.85);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 18px 34px -14px rgba(217,80,43,.9);}
.btn-brand{background:var(--c-brand);color:#fff;box-shadow:0 12px 26px -14px rgba(15,107,92,.8);}
.btn-brand:hover{background:var(--c-brand-600);transform:translateY(-2px);}
.btn-outline{border:1.5px solid var(--c-brand);color:var(--c-brand);background:transparent;}
.btn-outline:hover{background:var(--c-brand-tint);transform:translateY(-2px);}
.btn-glass{border:1.5px solid rgba(255,255,255,.62);color:#fff;background:rgba(255,255,255,.12);backdrop-filter:blur(6px);}
.btn-glass:hover{background:rgba(255,255,255,.22);transform:translateY(-2px);}
.btn-ghost{color:var(--c-brand);padding:8px 4px;}
.btn-ghost:hover{color:var(--c-action);}
.btn:disabled{opacity:.4;pointer-events:none;}

/* ---------- 顶部导航 ---------- */
.site-header{position:relative;z-index:60;}
.brand-bar{background:var(--c-surface);border-bottom:1px solid var(--c-line);}
.brand-inner{display:flex;align-items:center;justify-content:space-between;gap:18px;height:72px;}
.logo{display:flex;align-items:center;gap:12px;font-weight:800;font-size:18px;letter-spacing:.01em;}
.logo-mark{
  width:42px;height:42px;border-radius:14px;background:var(--grad-brand);
  display:grid;place-items:center;color:#fff;font-size:17px;font-weight:800;
  box-shadow:0 10px 20px -12px rgba(15,107,92,.9);flex:none;
}
.logo-text{display:flex;flex-direction:column;line-height:1.25;}
.logo-text small{font-size:12px;font-weight:500;color:var(--c-ink-2);letter-spacing:.06em;}
.brand-actions{display:flex;align-items:center;gap:18px;}
.brand-link{font-size:15px;color:var(--c-ink-2);font-weight:500;}
.brand-link:hover{color:var(--c-brand);}
.search-btn{
  width:40px;height:40px;border-radius:50%;border:1px solid var(--c-line);
  display:grid;place-items:center;color:var(--c-ink-2);
}
.search-btn:hover{border-color:var(--c-brand-300);color:var(--c-brand);background:var(--c-brand-tint);}
.brand-cta{padding:11px 22px;font-size:14px;}
.menu-toggle{
  display:none;width:42px;height:42px;border-radius:12px;border:1px solid var(--c-line);
  align-items:center;justify-content:center;flex-direction:column;gap:4px;
}
.menu-toggle span{display:block;width:18px;height:2px;background:var(--c-ink);border-radius:2px;transition:transform .2s var(--ease),opacity .2s var(--ease);}

.channel-bar{
  position:sticky;top:0;z-index:55;
  background:rgba(255,255,255,.94);backdrop-filter:blur(10px);
  border-bottom:1px solid var(--c-line);
  transition:box-shadow .2s var(--ease);
}
.channel-bar.scrolled{box-shadow:0 10px 24px -20px rgba(11,31,27,.6);}
.channel-inner{display:flex;align-items:center;gap:10px;min-height:52px;overflow-x:auto;scrollbar-width:none;}
.channel-inner::-webkit-scrollbar{display:none;}
.channel-nav{display:flex;align-items:center;gap:8px;}
.channel-link{
  padding:8px 18px;border-radius:var(--r-pill);font-size:14px;font-weight:600;
  color:var(--c-ink-2);white-space:nowrap;scroll-snap-align:start;
  transition:background .18s var(--ease),color .18s var(--ease);
}
.channel-link:hover{background:var(--c-brand-tint);color:var(--c-brand);}
.channel-link.active{background:var(--c-brand);color:#fff;box-shadow:0 10px 20px -14px rgba(15,107,92,.9);}
.channel-hint{margin-left:auto;font-size:13px;color:var(--c-ink-2);white-space:nowrap;padding-left:16px;}

/* ---------- Hero ---------- */
.hero{
  position:relative;overflow:hidden;
  background:url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
  padding:72px 0 96px;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(120deg,rgba(8,34,30,.95) 0%,rgba(15,107,92,.86) 46%,rgba(127,216,192,.42) 100%);
}
.hero .container{position:relative;z-index:2;}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center;}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 16px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.32);
  color:#EAFBF6;font-size:12px;font-weight:600;letter-spacing:.04em;
}
.hero h1{
  margin-top:22px;color:#fff;
  font-size:clamp(30px,4.4vw,44px);line-height:1.2;font-weight:800;letter-spacing:.01em;
  max-width:15em;
}
.hero-sub{
  margin-top:20px;max-width:34em;color:rgba(240,255,251,.88);
  font-size:16px;line-height:1.85;
}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px;}
.hero-note{margin-top:18px;font-size:13px;color:rgba(233,252,246,.72);}

.hero-card{
  background:rgba(255,255,255,.97);border-radius:var(--r-xl);
  padding:30px 28px;box-shadow:0 40px 70px -34px rgba(4,24,20,.7);
  border:1px solid rgba(255,255,255,.6);
}
.hero-card-head{display:flex;align-items:center;justify-content:space-between;gap:12px;}
.hero-card-title{font-size:17px;font-weight:700;}
.badge-amber{
  background:var(--grad-badge);color:#6A3D00;
  font-size:12px;font-weight:600;letter-spacing:.04em;
  padding:5px 12px;border-radius:var(--r-pill);
}
.step-list{margin-top:22px;display:flex;flex-direction:column;gap:16px;}
.step-item{display:flex;gap:14px;align-items:flex-start;}
.step-num{
  flex:none;width:30px;height:30px;border-radius:10px;
  background:var(--c-brand-tint);color:var(--c-brand);
  display:grid;place-items:center;font-size:14px;font-weight:700;font-variant-numeric:tabular-nums;
}
.step-text strong{display:block;font-size:15px;font-weight:600;}
.step-text span{font-size:13px;color:var(--c-ink-2);line-height:1.7;}
.hero-card-foot{
  margin-top:24px;padding-top:18px;border-top:1px dashed var(--c-line);
  display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:13px;color:var(--c-ink-2);
}

/* ---------- 数据条 ---------- */
.stat-strip{
  position:relative;z-index:3;margin-top:-46px;
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-lg);box-shadow:var(--sh-1);
  display:grid;grid-template-columns:repeat(4,1fr);gap:8px;
  padding:26px 18px;
}
.stat-item{text-align:center;padding:6px 10px;border-right:1px solid var(--c-line);}
.stat-item:last-child{border-right:0;}
.stat-value{
  font-size:clamp(22px,2.4vw,28px);font-weight:800;letter-spacing:.01em;
  background:var(--grad-badge);-webkit-background-clip:text;background-clip:text;color:transparent;
  font-variant-numeric:tabular-nums;
}
.stat-label{margin-top:4px;font-size:13px;color:var(--c-ink-2);}

/* ---------- 通用板块 ---------- */
.section{padding:96px 0;}
.section.alt{background:var(--c-surface);}
.section-head{max-width:720px;margin-bottom:44px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.eyebrow{
  display:inline-block;font-size:12px;font-weight:600;letter-spacing:.08em;
  color:var(--c-brand);background:var(--c-brand-tint);
  padding:6px 14px;border-radius:var(--r-pill);
}
.section-title{
  margin-top:16px;font-size:clamp(24px,2.8vw,32px);line-height:1.3;font-weight:700;color:var(--c-ink);
}
.section-sub{margin-top:14px;color:var(--c-ink-2);font-size:16px;}
.section-head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;}
.section-head-row .section-head{margin-bottom:0;}

/* ---------- 权益对比 ---------- */
.plan-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:stretch;}
.plan-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);
  overflow:hidden;box-shadow:var(--sh-1);
  display:flex;flex-direction:column;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease);
}
.plan-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);}
.plan-card.featured{transform:translateY(-8px);border-color:var(--c-brand-300);box-shadow:0 30px 60px -30px rgba(15,107,92,.45);}
.plan-card.featured:hover{transform:translateY(-10px);}
.plan-head{
  background:var(--grad-brand);color:#fff;padding:24px 24px 22px;position:relative;
}
.plan-card.featured .plan-head::after{
  content:"推荐";position:absolute;top:16px;right:20px;
  background:var(--grad-badge);color:#6A3D00;font-size:12px;font-weight:600;
  padding:4px 12px;border-radius:var(--r-pill);
}
.plan-name{font-size:18px;font-weight:700;}
.plan-desc{margin-top:6px;font-size:13px;color:rgba(255,255,255,.85);}
.plan-price{margin-top:14px;font-size:26px;font-weight:800;font-variant-numeric:tabular-nums;}
.plan-price small{font-size:13px;font-weight:500;margin-left:6px;color:rgba(255,255,255,.8);}
.plan-body{padding:22px 24px 26px;display:flex;flex-direction:column;flex:1;}
.plan-list{display:flex;flex-direction:column;gap:12px;flex:1;}
.plan-item{display:flex;gap:10px;align-items:flex-start;font-size:14px;color:var(--c-ink-2);line-height:1.7;}
.plan-item i{flex:none;width:20px;height:20px;border-radius:50%;display:grid;place-items:center;font-style:normal;font-size:12px;margin-top:2px;}
.plan-item.yes i{background:var(--c-brand-tint);color:var(--c-brand);}
.plan-item.no i{background:#F3EDE6;color:#A3958A;}
.plan-item.no{color:#9AA7A1;}
.plan-foot{margin-top:22px;}

/* ---------- 等级亮点 ---------- */
.tier-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.tier-card{
  position:relative;background:var(--c-surface);border-radius:var(--r-xl);
  padding:30px 26px;box-shadow:var(--sh-1);overflow:hidden;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease);
}
.tier-card::before{
  content:"";position:absolute;inset:0;border-radius:var(--r-xl);padding:1.5px;
  background:var(--grad-brand);
  -webkit-mask:linear-gradient(#fff 0 0) content-box,linear-gradient(#fff 0 0);
  -webkit-mask-composite:xor;mask-composite:exclude;pointer-events:none;opacity:.55;
}
.tier-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);}
.tier-card:hover::before{opacity:1;}
.tier-badge{
  display:inline-block;background:var(--grad-badge);color:#6A3D00;
  font-size:12px;font-weight:600;letter-spacing:.04em;padding:5px 14px;border-radius:var(--r-pill);
}
.tier-title{margin-top:16px;font-size:20px;font-weight:700;}
.tier-text{margin-top:10px;font-size:14px;color:var(--c-ink-2);}
.tier-list{margin-top:20px;display:flex;flex-direction:column;gap:11px;}
.tier-list li{display:flex;gap:10px;font-size:14px;color:var(--c-ink-2);}
.tier-list li i{font-style:normal;color:var(--c-brand);font-weight:700;}
.tier-link{display:inline-block;margin-top:22px;font-size:14px;font-weight:600;color:var(--c-brand);}
.tier-link:hover{color:var(--c-action);}

/* ---------- 专属内容预览 ---------- */
.preview-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.preview-card{
  background:var(--c-surface);border-radius:var(--r-lg);overflow:hidden;
  border:1px solid var(--c-line);box-shadow:var(--sh-1);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease);
}
.preview-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);}
.preview-media{position:relative;aspect-ratio:16/9;overflow:hidden;background:#E9EFEC;}
.preview-media img{width:100%;height:100%;object-fit:cover;transition:transform .3s var(--ease);}
.preview-card.dim .preview-media img{filter:saturate(.35) brightness(.95);}
.preview-card:hover .preview-media img{transform:scale(1.03);}
.lock-badge{
  position:absolute;top:12px;right:12px;
  background:rgba(11,31,27,.72);color:#fff;font-size:11px;font-weight:600;letter-spacing:.04em;
  padding:5px 11px;border-radius:var(--r-pill);backdrop-filter:blur(4px);
}
.lock-badge.open{background:var(--grad-badge);color:#6A3D00;}
.preview-body{padding:18px 18px 20px;}
.preview-title{font-size:15px;font-weight:600;line-height:1.55;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;min-height:3.1em;}
.preview-meta{margin-top:12px;display:flex;align-items:center;justify-content:space-between;font-size:12px;color:var(--c-ink-2);}
.chip{
  display:inline-block;font-size:12px;font-weight:600;color:var(--c-brand);
  background:var(--c-brand-tint);padding:3px 10px;border-radius:var(--r-pill);
}

/* ---------- 最新信息 CMS ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.news-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);
  overflow:hidden;box-shadow:var(--sh-1);display:flex;flex-direction:column;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease);
}
.news-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);}
.news-media{aspect-ratio:16/9;overflow:hidden;background:#E9EFEC;}
.news-media img{width:100%;height:100%;object-fit:cover;transition:transform .3s var(--ease);}
.news-card:hover .news-media img{transform:scale(1.03);}
.news-body{padding:20px;display:flex;flex-direction:column;flex:1;}
.news-title{
  margin-top:12px;font-size:17px;font-weight:700;line-height:1.5;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-card:hover .news-title{color:var(--c-brand);}
.news-excerpt{
  margin-top:10px;font-size:14px;color:var(--c-ink-2);line-height:1.75;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-foot{
  margin-top:18px;padding-top:14px;border-top:1px solid var(--c-line);
  display:flex;align-items:center;justify-content:space-between;font-size:12px;color:var(--c-ink-2);
}
.empty-state{
  grid-column:1 / -1;text-align:center;padding:64px 24px;
  background:var(--c-surface);border:1px dashed var(--c-line);border-radius:var(--r-lg);
  color:var(--c-ink-2);font-size:15px;
}
.empty-illus{
  width:64px;height:64px;border-radius:20px;margin:0 auto 16px;
  background:var(--c-brand-tint);display:grid;place-items:center;color:var(--c-brand);font-size:24px;
}
.sort-tabs{display:flex;gap:8px;}
.sort-tab{font-size:13px;color:var(--c-ink-2);padding:6px 14px;border-radius:var(--r-pill);border:1px solid var(--c-line);}
.sort-tab.on{background:var(--c-brand-tint);color:var(--c-brand);border-color:var(--c-brand-300);font-weight:600;}

/* ---------- 口碑 ---------- */
.voice-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.voice-card{
  background:var(--c-surface);border-radius:var(--r-lg);padding:26px 24px;
  border:1px solid var(--c-line);box-shadow:var(--sh-1);
}
.voice-stars{color:var(--c-accent);font-size:14px;letter-spacing:2px;}
.voice-text{margin-top:14px;font-size:15px;color:var(--c-ink-2);line-height:1.85;}
.voice-user{margin-top:18px;display:flex;align-items:center;gap:12px;}
.voice-avatar{
  width:40px;height:40px;border-radius:50%;background:var(--grad-brand);color:#fff;
  display:grid;place-items:center;font-size:14px;font-weight:700;flex:none;
}
.voice-name{font-size:14px;font-weight:600;}
.voice-role{font-size:12px;color:var(--c-ink-2);}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:860px;margin:0 auto;display:flex;flex-direction:column;gap:14px;}
.faq-item{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);
  overflow:hidden;transition:box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.faq-item[open]{box-shadow:var(--sh-1);border-color:var(--c-brand-300);}
.faq-q{
  list-style:none;cursor:pointer;position:relative;
  padding:20px 56px 20px 22px;font-size:16px;font-weight:600;color:var(--c-ink);
  border-left:3px solid transparent;transition:border-color .2s var(--ease),color .2s var(--ease);
}
.faq-q::-webkit-details-marker{display:none;}
.faq-item[open] .faq-q{border-left-color:var(--c-brand);color:var(--c-brand-600);}
.faq-q::after{
  content:"+";position:absolute;right:22px;top:50%;transform:translateY(-50%);
  font-size:22px;font-weight:400;color:var(--c-brand);line-height:1;
  transition:transform .2s var(--ease);
}
.faq-item[open] .faq-q::after{transform:translateY(-50%) rotate(45deg);}
.faq-a{padding:0 22px 22px;font-size:15px;color:var(--c-ink-2);line-height:1.85;}

/* ---------- CTA ---------- */
.cta-section{padding:0 0 96px;}
.cta-card{
  position:relative;overflow:hidden;border-radius:var(--r-xl);
  background:var(--grad-brand);color:#fff;
  padding:52px 48px;display:grid;grid-template-columns:1fr 380px;gap:44px;align-items:center;
  box-shadow:0 40px 80px -40px rgba(15,107,92,.7);
}
.cta-card::after{
  content:"";position:absolute;right:-120px;top:-120px;width:340px;height:340px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,255,255,.28),transparent 68%);
}
.cta-copy h2{font-size:clamp(24px,2.8vw,32px);line-height:1.3;font-weight:700;}
.cta-copy p{margin-top:16px;max-width:32em;color:rgba(255,255,255,.9);font-size:15px;}
.steps-row{margin-top:28px;display:flex;flex-wrap:wrap;gap:14px;}
.steps-row .step-pill{
  display:flex;align-items:center;gap:8px;font-size:13px;font-weight:600;
  background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.3);
  padding:8px 16px;border-radius:var(--r-pill);
}
.steps-row .step-pill b{font-variant-numeric:tabular-nums;}
.form-card{
  position:relative;z-index:2;background:var(--c-surface);color:var(--c-ink);
  border-radius:var(--r-lg);padding:28px 26px;box-shadow:0 30px 60px -30px rgba(4,24,20,.6);
}
.form-title{font-size:17px;font-weight:700;}
.form-sub{margin-top:6px;font-size:13px;color:var(--c-ink-2);}
.field{margin-top:16px;}
.field label{display:block;font-size:13px;font-weight:600;margin-bottom:7px;color:var(--c-ink);}
.input{
  width:100%;padding:12px 14px;border-radius:var(--r-sm);
  border:1px solid var(--c-line);background:#FBFBF9;font-size:14px;
  transition:border-color .18s var(--ease),box-shadow .18s var(--ease),background .18s var(--ease);
}
.input::placeholder{color:#A7B3AE;}
.input:focus{outline:none;border-color:var(--c-brand);background:#fff;box-shadow:0 0 0 3px rgba(15,107,92,.12);}
.code-row{display:flex;gap:10px;}
.code-row .input{flex:1;}
.code-btn{
  flex:none;padding:0 18px;border-radius:var(--r-sm);border:1px solid var(--c-brand);
  color:var(--c-brand);font-size:13px;font-weight:600;background:var(--c-brand-tint);
  transition:background .18s var(--ease),color .18s var(--ease);
}
.code-btn:hover{background:var(--c-brand);color:#fff;}
.checkbox-row{margin-top:16px;display:flex;gap:10px;align-items:flex-start;font-size:12px;color:var(--c-ink-2);line-height:1.7;}
.checkbox-row input{margin-top:3px;width:16px;height:16px;accent-color:var(--c-brand);flex:none;}
.form-card .btn{width:100%;margin-top:18px;}
.form-hint{margin-top:12px;font-size:12px;color:#8A9791;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-dark);color:#C9D6D1;padding:64px 0 28px;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:36px;}
.footer-brand{display:flex;align-items:center;gap:12px;color:#fff;font-weight:700;font-size:17px;}
.footer-brand .logo-mark{box-shadow:none;}
.footer-desc{margin-top:18px;font-size:14px;color:#93A6A0;max-width:26em;line-height:1.8;}
.footer-col h3{font-size:14px;color:#fff;font-weight:600;letter-spacing:.04em;}
.footer-col ul{margin-top:16px;display:flex;flex-direction:column;gap:11px;}
.footer-col a{font-size:14px;color:#9FB2AC;}
.footer-col a:hover{color:#7FD8C0;}
.footer-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid rgba(255,255,255,.1);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:#7E918B;
}
.footer-bottom .links{display:flex;gap:18px;}
.footer-bottom a:hover{color:#7FD8C0;}

/* ---------- 响应式 ---------- */
@media (max-width:1180px){
  .preview-grid{grid-template-columns:repeat(3,1fr);}
}
@media (max-width:1024px){
  .hero{padding:56px 0 84px;}
  .hero-grid{grid-template-columns:1fr;gap:34px;}
  .section{padding:64px 0;}
  .cta-section{padding-bottom:64px;}
  .plan-grid,.tier-grid,.news-grid,.voice-grid{grid-template-columns:repeat(2,1fr);}
  .plan-card.featured{transform:none;}
  .preview-grid{grid-template-columns:repeat(2,1fr);}
  .cta-card{grid-template-columns:1fr;padding:40px 32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px;}
  .brand-link,.search-btn{display:none;}
}
@media (max-width:768px){
  .container{padding:0 18px;}
  .brand-inner{height:64px;}
  .logo-text small{display:none;}
  .menu-toggle{display:flex;}
  .brand-cta{padding:10px 18px;font-size:13px;}
  .channel-inner{overflow:visible;flex-direction:column;align-items:stretch;min-height:0;display:none;padding:10px 0 14px;}
  .channel-bar.open .channel-inner{display:flex;}
  .channel-nav{flex-direction:column;align-items:stretch;gap:6px;}
  .channel-link{padding:12px 16px;border-radius:var(--r-sm);font-size:15px;}
  .channel-hint{display:none;}
  .hero{padding:44px 0 72px;background-position:center;}
  .hero h1{max-width:none;}
  .hero-cta .btn{flex:1;}
  .stat-strip{grid-template-columns:repeat(2,1fr);gap:18px 8px;padding:22px 12px;margin-top:-34px;}
  .stat-item:nth-child(2){border-right:0;}
  .section{padding:48px 0;}
  .section-head{margin-bottom:30px;}
  .plan-grid,.tier-grid,.news-grid,.voice-grid,.preview-grid{grid-template-columns:1fr;}
  .cta-card{padding:32px 22px;border-radius:var(--r-lg);}
  .footer-grid{grid-template-columns:1fr;}
  .site-footer{padding:46px 0 22px;}
}
@media (max-width:480px){
  body{font-size:15px;}
  .hero-card{padding:24px 20px;border-radius:var(--r-lg);}
  .code-row{flex-direction:column;}
  .code-btn{padding:12px;width:100%;}
  .btn{padding:12px 20px;font-size:14px;}
  .stat-value{font-size:22px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;}
  .plan-card:hover,.news-card:hover,.preview-card:hover,.tier-card:hover,.btn:hover{transform:none;}
}

/* roulang page: article */
:root{
  --c-brand:#0F6B5C;
  --c-brand-600:#0C5A4D;
  --c-brand-300:#62C9B4;
  --c-brand-tint:#E7F4F0;
  --c-action:#F2643C;
  --c-action-hover:#D9502B;
  --c-accent:#FFC24B;
  --c-bg:#F5F3EE;
  --c-surface:#FFFFFF;
  --c-dark:#0B1F1B;
  --c-ink:#13231E;
  --c-ink-2:#4A5F58;
  --c-line:#DCE7E2;
  --grad-brand:linear-gradient(120deg,#0F6B5C 0%,#17A184 55%,#7FD8C0 100%);
  --grad-action:linear-gradient(135deg,#F2643C 0%,#FF9067 100%);
  --grad-accent:linear-gradient(135deg,#FFC24B 0%,#FFE1A3 100%);
  --r-sm:10px;
  --r-md:16px;
  --r-lg:24px;
  --r-xl:32px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(11,31,27,.04),0 8px 24px -12px rgba(11,31,27,.12);
  --sh-2:0 24px 48px -24px rgba(15,107,92,.28);
  --ease:cubic-bezier(.2,.7,.3,1);
  --font-sans:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.85;
  color:var(--c-ink-2);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;color:var(--c-ink);font-weight:700}
p{margin:0}
:focus-visible{outline:2px solid var(--c-brand);outline-offset:2px;border-radius:6px}
::selection{background:var(--c-brand-tint);color:var(--c-brand-600)}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
@media (min-width:1440px){.container{max-width:1280px}}

/* ============ 顶部品牌行 / 频道行 ============ */
.site-header{position:relative;z-index:70;background:var(--c-surface);border-bottom:1px solid var(--c-line)}
.brand-bar{height:72px;display:flex;align-items:center;background:var(--c-surface)}
.brand-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;height:72px}
.logo{display:inline-flex;align-items:center;gap:12px}
.logo-mark{
  width:40px;height:40px;flex:0 0 40px;border-radius:12px;
  background:var(--grad-brand);color:#fff;
  display:inline-flex;align-items:center;justify-content:center;
  font-size:20px;font-weight:800;letter-spacing:.02em;
  box-shadow:0 8px 20px -10px rgba(15,107,92,.7);
}
.logo-text{font-size:19px;font-weight:800;color:var(--c-ink);letter-spacing:.01em;white-space:nowrap}
.brand-actions{display:flex;align-items:center;gap:14px}
.icon-btn{
  width:38px;height:38px;border-radius:var(--r-pill);
  border:1px solid var(--c-line);background:#fff;color:var(--c-ink-2);
  display:inline-flex;align-items:center;justify-content:center;cursor:pointer;
  transition:background .2s var(--ease),color .2s var(--ease),transform .2s var(--ease);
}
.icon-btn:hover{background:var(--c-brand-tint);color:var(--c-brand);transform:translateY(-1px)}
.text-link{font-size:14px;color:var(--c-ink-2);font-weight:500;transition:color .2s var(--ease)}
.text-link:hover{color:var(--c-brand)}
.menu-toggle{display:none;width:40px;height:40px;border-radius:12px;border:1px solid var(--c-line);background:#fff;cursor:pointer;color:var(--c-ink)}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-pill);border:1px solid transparent;
  padding:12px 24px;font-size:15px;font-weight:600;cursor:pointer;
  transition:transform .18s var(--ease),box-shadow .18s var(--ease),background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease);
  white-space:nowrap;
}
.btn-sm{padding:9px 18px;font-size:14px}
.btn-primary{background:var(--grad-action);color:#fff;box-shadow:0 12px 26px -14px rgba(242,100,60,.9)}
.btn-primary:hover{background:var(--c-action-hover);transform:translateY(-2px);box-shadow:0 18px 30px -14px rgba(242,100,60,.85)}
.btn-outline{background:#fff;color:var(--c-brand);border-color:var(--c-brand)}
.btn-outline:hover{background:var(--c-brand-tint);transform:translateY(-2px)}
.btn-ghost{background:transparent;color:var(--c-brand);padding:10px 6px}
.btn-ghost:hover{color:var(--c-action)}
.btn-dark{background:var(--c-dark);color:#fff}
.btn-dark:hover{background:#123029;transform:translateY(-2px)}
.btn[disabled],.btn.is-disabled{opacity:.4;pointer-events:none}

.channel-nav-wrap{background:#FBFAF7;border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line);position:sticky;top:0;z-index:65;transition:box-shadow .2s var(--ease)}
.site-header.is-stuck .channel-nav-wrap{box-shadow:0 10px 24px -18px rgba(11,31,27,.45)}
.channel-nav{display:flex;align-items:center;gap:6px;height:52px;overflow-x:auto;scroll-snap-type:x proximity;scrollbar-width:none}
.channel-nav::-webkit-scrollbar{display:none}
.channel-link{
  scroll-snap-align:start;
  display:inline-flex;align-items:center;height:36px;padding:0 18px;
  border-radius:var(--r-pill);font-size:14.5px;font-weight:600;color:var(--c-ink-2);
  white-space:nowrap;transition:background .18s var(--ease),color .18s var(--ease);
}
.channel-link:hover{background:var(--c-brand-tint);color:var(--c-brand-600)}
.channel-link.active{background:var(--c-brand);color:#fff;box-shadow:0 10px 20px -14px rgba(15,107,92,.9)}

.mobile-drawer{display:none;border-top:1px solid var(--c-line);background:#fff;padding:14px 24px 22px}
.mobile-drawer.open{display:block}
.mobile-drawer a{display:block;padding:12px 4px;font-size:15.5px;font-weight:600;color:var(--c-ink);border-bottom:1px dashed var(--c-line)}
.mobile-drawer a:last-of-type{border-bottom:none}
.mobile-drawer .btn{width:100%;margin-top:14px}

/* ============ 页面头部 ============ */
.article-head{
  position:relative;overflow:hidden;
  background-image:linear-gradient(105deg,rgba(11,31,27,.92) 0%,rgba(15,107,92,.78) 55%,rgba(127,216,192,.42) 100%),url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  padding:34px 0 44px;
}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.76);margin-bottom:20px}
.breadcrumb a{color:rgba(255,255,255,.92)}
.breadcrumb a:hover{color:#FFE1A3}
.breadcrumb span.sep{opacity:.5}
.article-title{color:#fff;font-size:clamp(26px,4vw,40px);line-height:1.25;font-weight:800;max-width:900px}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-top:22px;padding-top:20px;border-top:1px solid rgba(255,255,255,.22);font-size:14px;color:rgba(255,255,255,.86)}
.badge{display:inline-flex;align-items:center;gap:6px;border-radius:var(--r-pill);padding:5px 13px;font-size:12px;font-weight:600;letter-spacing:.04em}
.badge-accent{background:var(--grad-accent);color:#4A3200}
.badge-brand{background:var(--c-brand-tint);color:var(--c-brand-600)}
.badge-glass{background:rgba(255,255,255,.18);color:#fff;backdrop-filter:blur(6px);border:1px solid rgba(255,255,255,.35)}
.meta-item{display:inline-flex;align-items:center;gap:6px;font-variant-numeric:tabular-nums}

/* ============ 主体布局 ============ */
.main{padding:56px 0 72px}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:36px;align-items:start}
.article-main{max-width:760px;min-width:0}
.panel{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);box-shadow:var(--sh-1);padding:34px 38px}
.article-body{font-size:16px;line-height:1.85;color:var(--c-ink-2);word-wrap:break-word}
.article-body>*+*{margin-top:20px}
.article-body h1,.article-body h2,.article-body h3,.article-body h4{color:var(--c-ink)}
.article-body h2{
  font-size:clamp(22px,2.4vw,28px);line-height:1.35;font-weight:700;margin-top:48px;position:relative;padding-left:16px;
}
.article-body h2::before{content:"";position:absolute;left:0;top:.2em;bottom:.2em;width:4px;border-radius:4px;background:var(--grad-brand)}
.article-body h3{font-size:20px;line-height:1.45;font-weight:600;margin-top:32px}
.article-body p{font-size:16px;line-height:1.85}
.article-body a{color:var(--c-brand);text-decoration:underline;text-underline-offset:3px;transition:color .2s var(--ease)}
.article-body a:hover{color:var(--c-action)}
.article-body strong{color:var(--c-ink);font-weight:700}
.article-body ul,.article-body ol{padding-left:0}
.article-body ul li{position:relative;padding-left:24px;margin-top:10px}
.article-body ul li::before{content:"";position:absolute;left:4px;top:.72em;width:8px;height:8px;border-radius:3px;background:var(--c-brand-300)}
.article-body ol{counter-reset:olc}
.article-body ol li{counter-increment:olc;position:relative;padding-left:34px;margin-top:10px}
.article-body ol li::before{
  content:counter(olc);position:absolute;left:0;top:.4em;
  width:22px;height:22px;border-radius:var(--r-pill);background:var(--c-brand-tint);color:var(--c-brand-600);
  font-size:12px;font-weight:700;display:flex;align-items:center;justify-content:center;font-variant-numeric:tabular-nums;
}
.article-body blockquote{
  background:var(--c-brand-tint);color:var(--c-ink);
  border-left:4px solid var(--c-brand);
  border-radius:0 var(--r-md) var(--r-md) 0;
  padding:18px 22px;font-size:15.5px;
}
.article-body blockquote p{font-size:15.5px}
.article-body img{border-radius:var(--r-md);width:100%}
.article-body figure{margin:0}
.article-body figcaption{font-size:13px;text-align:center;color:var(--c-ink-2);margin-top:10px}
.article-body hr{border:none;height:1px;background:var(--c-line);margin:32px 0}
.article-body table{width:100%;border-collapse:collapse;font-size:15px;border:1px solid var(--c-line);border-radius:var(--r-md);overflow:hidden}
.article-body thead th{
  position:sticky;top:0;background:var(--grad-brand);color:#fff;
  text-align:left;font-weight:600;padding:13px 16px;font-size:14px;white-space:nowrap;
}
.article-body tbody td{padding:13px 16px;border-top:1px solid var(--c-line)}
.article-body tbody tr:nth-child(even){background:#FAFCFB}
.article-body pre{
  background:var(--c-dark);color:#DCE7E2;border-radius:var(--r-md);
  padding:20px;overflow-x:auto;font-size:14px;line-height:1.7;
}
.article-body code{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.94em}
.article-body p code,.article-body li code{background:var(--c-brand-tint);color:var(--c-brand-600);padding:2px 6px;border-radius:6px}

.empty-state{text-align:center;padding:56px 24px}
.empty-state .empty-icon{
  width:76px;height:76px;margin:0 auto 20px;border-radius:var(--r-xl);
  background:var(--grad-brand);color:#fff;display:flex;align-items:center;justify-content:center;font-size:30px;
  box-shadow:var(--sh-2);
}
.empty-state h2{font-size:24px;margin-bottom:10px}
.empty-state p{color:var(--c-ink-2);margin-bottom:24px}

/* ============ 文末与侧栏 ============ */
.foot-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:32px;padding-top:24px;border-top:1px solid var(--c-line)}
.tag-pill{
  display:inline-flex;align-items:center;padding:7px 15px;border-radius:var(--r-pill);
  background:#F7FAF9;border:1px solid var(--c-line);font-size:13px;color:var(--c-ink-2);
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.tag-pill:hover{background:var(--c-brand-tint);color:var(--c-brand-600);border-color:var(--c-brand-300)}
.share-row{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-top:22px}
.share-row .share-label{font-size:13px;color:var(--c-ink-2)}
.share-btn{
  width:38px;height:38px;border-radius:var(--r-pill);border:1px solid var(--c-line);background:#fff;color:var(--c-ink-2);
  display:inline-flex;align-items:center;justify-content:center;cursor:pointer;
  transition:transform .18s var(--ease),background .18s var(--ease),color .18s var(--ease);
}
.share-btn:hover{background:var(--c-brand-tint);color:var(--c-brand);transform:translateY(-2px)}

.sidebar{display:flex;flex-direction:column;gap:22px;position:sticky;top:80px}
.side-card{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);box-shadow:var(--sh-1);padding:22px}
.side-card h3{font-size:16px;font-weight:700;margin-bottom:14px;display:flex;align-items:center;gap:8px}
.side-card h3 i{color:var(--c-brand)}
.toc-list{display:flex;flex-direction:column;gap:2px;max-height:320px;overflow:auto}
.toc-list a{font-size:14px;color:var(--c-ink-2);padding:7px 10px;border-radius:var(--r-sm);border-left:2px solid transparent;transition:all .18s var(--ease)}
.toc-list a:hover{background:var(--c-brand-tint);color:var(--c-brand-600);border-left-color:var(--c-brand)}
.toc-list a.lv-3{padding-left:22px;font-size:13.5px}

.rec-item{display:flex;gap:12px;padding:12px 0;border-bottom:1px dashed var(--c-line)}
.rec-item:last-child{border-bottom:none;padding-bottom:0}
.rec-item img{width:88px;height:58px;object-fit:cover;border-radius:var(--r-sm);flex:0 0 88px}
.rec-item h4{font-size:14.5px;line-height:1.5;font-weight:600}
.rec-item span{display:block;font-size:12.5px;color:var(--c-ink-2);margin-top:6px}
.rec-item:hover h4{color:var(--c-brand)}

.side-cta{background:var(--grad-brand);color:#fff;border:none;border-radius:var(--r-lg);padding:24px;box-shadow:var(--sh-2)}
.side-cta h3{color:#fff}
.side-cta p{color:rgba(255,255,255,.9);font-size:14px;line-height:1.7;margin-bottom:16px}
.side-cta .btn{width:100%}
.side-cta .price{font-size:30px;font-weight:800;font-variant-numeric:tabular-nums;color:#FFE1A3;line-height:1.2;margin:4px 0 8px}

.adjacent{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;margin-top:36px}
.adj-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);
  padding:20px;box-shadow:var(--sh-1);transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.adj-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:var(--c-brand-300)}
.adj-card span{font-size:12.5px;color:var(--c-ink-2);letter-spacing:.04em}
.adj-card h3{font-size:16.5px;margin-top:8px;line-height:1.5}
.adj-card p{font-size:13.5px;margin-top:8px;color:var(--c-ink-2)}

/* ============ 底部 CTA ============ */
.cta-band{padding:0 0 80px}
.cta-inner{
  background:var(--grad-brand);border-radius:var(--r-xl);padding:44px;color:#fff;
  display:grid;grid-template-columns:minmax(0,1fr) 380px;gap:40px;align-items:center;
  box-shadow:var(--sh-2);position:relative;overflow:hidden;
}
.cta-inner::after{
  content:"";position:absolute;right:-90px;top:-90px;width:300px;height:300px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,225,163,.35) 0%,rgba(255,225,163,0) 70%);
}
.cta-copy h2{color:#fff;font-size:clamp(22px,2.6vw,30px);line-height:1.35;margin:14px 0 12px}
.cta-copy p{color:rgba(255,255,255,.92);font-size:15px;line-height:1.8;max-width:560px}
.step-list{margin-top:22px;display:grid;gap:12px}
.step-list li{display:flex;gap:12px;align-items:flex-start;font-size:14.5px;color:#fff}
.step-num{
  flex:0 0 26px;width:26px;height:26px;border-radius:var(--r-pill);background:rgba(255,255,255,.18);
  display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:700;border:1px solid rgba(255,255,255,.4);
}
.cta-form{background:#fff;border-radius:var(--r-lg);padding:26px;box-shadow:var(--sh-2);position:relative;z-index:2}
.cta-form h3{font-size:18px;margin-bottom:6px}
.cta-form .form-hint{font-size:13px;color:var(--c-ink-2);margin-bottom:18px}
.field{margin-bottom:14px}
.field label{display:block;font-size:13px;font-weight:600;color:var(--c-ink);margin-bottom:8px}
.input{
  width:100%;height:46px;border-radius:var(--r-sm);border:1px solid var(--c-line);
  background:#FBFDFC;padding:0 14px;font-size:14.5px;color:var(--c-ink);
  transition:border-color .18s var(--ease),box-shadow .18s var(--ease),background .18s var(--ease);
}
.input::placeholder{color:#9BAAA4}
.input:hover{border-color:var(--c-brand-300)}
.input:focus{border-color:var(--c-brand);background:#fff;box-shadow:0 0 0 4px rgba(15,107,92,.12);outline:none}
.code-row{display:flex;gap:10px}
.code-row .input{flex:1}
.code-btn{
  flex:0 0 118px;height:46px;border-radius:var(--r-sm);border:1px solid var(--c-brand);
  background:#fff;color:var(--c-brand);font-size:14px;font-weight:600;cursor:pointer;
  transition:background .18s var(--ease),color .18s var(--ease);
}
.code-btn:hover{background:var(--c-brand-tint)}
.agree{display:flex;align-items:flex-start;gap:10px;font-size:13px;color:var(--c-ink-2);margin:4px 0 16px;line-height:1.6}
.agree input{width:17px;height:17px;margin-top:3px;accent-color:var(--c-brand)}
.cta-form .btn{width:100%}
.form-note{display:none;margin-top:14px;font-size:13.5px;padding:11px 14px;border-radius:var(--r-sm);background:var(--c-brand-tint);color:var(--c-brand-600);border-left:3px solid var(--c-brand)}
.form-note.show{display:block}
.form-small{font-size:12.5px;color:#8B9A94;margin-top:12px;text-align:center}

/* ============ 页脚 ============ */
.site-footer{background:var(--c-dark);color:#B9CBC5;padding:64px 0 28px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:36px}
.footer-brand{display:flex;align-items:center;gap:12px;color:#fff;font-size:18px;font-weight:800;margin-bottom:16px}
.footer-desc{font-size:14px;line-height:1.8;color:#9DB2AB;max-width:330px}
.footer-col h3{color:#fff;font-size:15px;font-weight:700;margin-bottom:16px}
.footer-col li{margin-bottom:11px}
.footer-col a{font-size:14px;color:#9DB2AB;transition:color .2s var(--ease)}
.footer-col a:hover{color:var(--c-brand-300)}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between;
  font-size:13px;color:#8B9E98;
}
.footer-bottom .links{display:flex;flex-wrap:wrap;gap:18px}
.footer-bottom a:hover{color:var(--c-brand-300)}

/* ============ 响应式 ============ */
@media (max-width:1023px){
  .article-layout{grid-template-columns:minmax(0,1fr)}
  .article-main{max-width:none}
  .sidebar{position:static;flex-direction:row;flex-wrap:wrap}
  .sidebar .side-card,.sidebar .side-cta{flex:1 1 300px}
  .cta-inner{grid-template-columns:minmax(0,1fr);padding:36px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:767px){
  .container{padding:0 18px}
  .brand-actions .text-link,.brand-actions .icon-btn{display:none}
  .menu-toggle{display:inline-flex;align-items:center;justify-content:center}
  .channel-nav-wrap{display:none}
  .brand-bar,.brand-inner{height:64px}
  .logo-text{font-size:17px}
  .panel{padding:24px 20px;border-radius:var(--r-md)}
  .main{padding:36px 0 56px}
  .article-head{padding:26px 0 34px}
  .adjacent{grid-template-columns:minmax(0,1fr)}
  .sidebar{flex-direction:column}
  .cta-inner{padding:28px 22px;border-radius:var(--r-lg)}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{justify-content:flex-start}
}
@media (max-width:519px){
  .article-title{font-size:24px}
  .meta-row{font-size:13px;gap:10px}
  .code-row{flex-direction:column}
  .code-btn{flex:1 1 auto;width:100%}
  .article-body h2{font-size:21px;margin-top:36px}
}

@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
  .btn:hover,.adj-card:hover,.icon-btn:hover{transform:none!important}
}

/* roulang page: category1 */
:root{
  --c-brand:#0F6B5C;
  --c-brand-600:#0C5A4D;
  --c-brand-300:#62C9B4;
  --c-brand-tint:#E7F4F0;
  --c-action:#F2643C;
  --c-action-hover:#D9502B;
  --c-accent:#FFC24B;
  --c-accent-soft:#FFE1A3;
  --c-bg:#F5F3EE;
  --c-surface:#FFFFFF;
  --c-dark:#0B1F1B;
  --c-ink:#13231E;
  --c-ink-2:#4A5F58;
  --c-line:#DCE7E2;
  --grad-brand:linear-gradient(120deg,#0F6B5C 0%,#17A184 55%,#7FD8C0 100%);
  --grad-accent:linear-gradient(135deg,#FFC24B,#FFE1A3);
  --r-sm:10px; --r-md:16px; --r-lg:24px; --r-xl:32px; --r-pill:999px;
  --sh-1:0 1px 2px rgba(11,31,27,.04), 0 8px 24px -12px rgba(11,31,27,.12);
  --sh-2:0 24px 48px -24px rgba(15,107,92,.28);
  --ease:cubic-bezier(.2,.7,.3,1);
  --font:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--c-bg);color:var(--c-ink);
  font-family:var(--font);font-size:16px;line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none}
a{color:var(--c-brand);text-decoration:none;transition:color .2s var(--ease)}
a:hover{color:var(--c-action)}
h1,h2,h3,h4{margin:0;color:var(--c-ink);font-weight:700;letter-spacing:.01em}
h1{font-size:clamp(30px,4.4vw,44px);line-height:1.2;font-weight:800}
h2{font-size:clamp(24px,2.8vw,32px);line-height:1.3}
h3{font-size:20px;line-height:1.45;font-weight:600}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
button,input{font-family:inherit;font-size:inherit;color:inherit}
:focus-visible{outline:2px solid var(--c-brand);outline-offset:2px;border-radius:6px}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:96px 0}
.section--tight{padding:64px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px;flex-wrap:wrap}
.section-head p{color:var(--c-ink-2);max-width:660px;margin-top:10px}
.more-link{font-weight:600;font-size:15px;white-space:nowrap}
.more-link::after{content:" →";transition:transform .2s var(--ease)}
.more-link:hover::after{content:" →"}

/* ============ 顶部导航 ============ */
.site-header{position:relative;z-index:60;background:var(--c-surface)}
.brand-bar{border-bottom:1px solid var(--c-line)}
.brand-inner{height:72px;display:flex;align-items:center;justify-content:space-between;gap:20px}
.brand{display:flex;align-items:center;gap:12px;color:var(--c-ink)}
.brand:hover{color:var(--c-ink)}
.logo-mark{
  width:40px;height:40px;border-radius:12px;background:var(--grad-brand);
  color:#fff;display:grid;place-items:center;font-weight:800;font-size:18px;
  box-shadow:var(--sh-1);flex:0 0 auto;
}
.brand-text{display:flex;flex-direction:column;line-height:1.2}
.brand-text strong{font-size:17px;font-weight:800;letter-spacing:.01em}
.brand-text span{font-size:12px;color:var(--c-ink-2);letter-spacing:.04em}
.brand-actions{display:flex;align-items:center;gap:18px}
.ghost-link{font-size:15px;color:var(--c-ink-2);font-weight:500}
.ghost-link:hover{color:var(--c-brand)}
.icon-btn{
  width:40px;height:40px;border-radius:var(--r-pill);border:1px solid var(--c-line);
  background:#fff;display:grid;place-items:center;cursor:pointer;color:var(--c-ink-2);
  transition:border-color .2s var(--ease),color .2s var(--ease),background .2s var(--ease);
}
.icon-btn:hover{border-color:var(--c-brand-300);background:var(--c-brand-tint);color:var(--c-brand)}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-pill);border:1px solid transparent;cursor:pointer;
  padding:12px 24px;font-size:15px;font-weight:600;line-height:1;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.btn:active{transform:translateY(1px)}
.btn-primary{background:linear-gradient(120deg,#F2643C,#FF8A5B);color:#fff;box-shadow:0 12px 28px -14px rgba(242,100,60,.7)}
.btn-primary:hover{background:linear-gradient(120deg,#D9502B,#F2643C);color:#fff;transform:translateY(-2px);box-shadow:0 18px 34px -16px rgba(242,100,60,.75)}
.btn-brand{background:var(--grad-brand);color:#fff;box-shadow:var(--sh-2)}
.btn-brand:hover{color:#fff;transform:translateY(-2px)}
.btn-outline{background:transparent;border-color:var(--c-brand);color:var(--c-brand)}
.btn-outline:hover{background:var(--c-brand-tint);color:var(--c-brand-600);transform:translateY(-2px)}
.btn-ghost{background:transparent;color:var(--c-ink-2);padding:12px 12px}
.btn-ghost:hover{color:var(--c-brand)}
.btn-sm{padding:9px 18px;font-size:14px}
.btn-block{width:100%}

.channel-nav{
  position:sticky;top:0;z-index:55;background:rgba(245,243,238,.94);
  backdrop-filter:blur(8px);border-bottom:1px solid var(--c-line);
  transition:box-shadow .24s var(--ease),background .24s var(--ease);
}
.channel-nav.is-stuck{box-shadow:0 10px 24px -18px rgba(11,31,27,.35);background:rgba(255,255,255,.96)}
.channel-inner{display:flex;align-items:center;gap:8px;height:52px;overflow-x:auto;scrollbar-width:none}
.channel-inner::-webkit-scrollbar{display:none}
.channel-link{
  flex:0 0 auto;padding:8px 18px;border-radius:var(--r-pill);font-size:15px;font-weight:600;
  color:var(--c-ink-2);white-space:nowrap;scroll-snap-align:start;
  transition:background .2s var(--ease),color .2s var(--ease);
}
.channel-link:hover{background:var(--c-brand-tint);color:var(--c-brand-600)}
.channel-link.active{background:var(--c-brand);color:#fff}
.nav-toggle{display:none}

/* ============ 分类页横幅 ============ */
.page-hero{
  position:relative;color:#fff;padding:76px 0 68px;
  background-image:
    linear-gradient(120deg, rgba(11,31,27,.9) 0%, rgba(15,107,92,.8) 48%, rgba(23,161,132,.42) 100%),
    url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
}
.crumbs{display:flex;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.78);margin-bottom:20px;flex-wrap:wrap}
.crumbs a{color:rgba(255,255,255,.78)}
.crumbs a:hover{color:#fff}
.crumbs span.sep{opacity:.6}
.page-hero h1{color:#fff;max-width:18em}
.page-hero h1 em{font-style:normal;color:var(--c-accent-soft)}
.hero-sub{margin-top:18px;max-width:660px;color:rgba(255,255,255,.86);font-size:16px;line-height:1.85}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;padding:7px 16px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.28);
  font-size:13px;font-weight:600;color:#fff;letter-spacing:.02em;
}
.hero-badges{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;margin-top:40px;
}
.stat-card{
  background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.22);
  border-radius:var(--r-lg);padding:18px 20px;backdrop-filter:blur(6px);
}
.stat-num{
  font-size:24px;font-weight:800;font-variant-numeric:tabular-nums;letter-spacing:.01em;
  background:var(--grad-accent);-webkit-background-clip:text;background-clip:text;color:transparent;
}
.stat-desc{font-size:13px;color:rgba(255,255,255,.82);margin-top:4px;line-height:1.6}

/* ============ 筛选 pill ============ */
.filter-bar{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);
  box-shadow:var(--sh-1);padding:16px 20px;margin-top:-34px;position:relative;z-index:5;
  display:flex;align-items:center;gap:12px;flex-wrap:wrap;
}
.filter-label{font-size:13px;font-weight:600;color:var(--c-ink-2);letter-spacing:.04em;padding-right:4px}
.pill{
  display:inline-flex;align-items:center;gap:6px;padding:8px 16px;border-radius:var(--r-pill);
  border:1px solid var(--c-line);background:#fff;color:var(--c-ink-2);
  font-size:14px;font-weight:600;cursor:pointer;transition:all .2s var(--ease);
}
.pill:hover{border-color:var(--c-brand-300);background:var(--c-brand-tint);color:var(--c-brand-600)}
.pill.is-active{background:var(--c-brand);border-color:var(--c-brand);color:#fff}

/* ============ 频道主体 ============ */
.channel-layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:36px;align-items:start}
.stream-head{margin-bottom:24px}
.stream-head h2{font-size:24px}
.stream-head p{color:var(--c-ink-2);margin-top:8px;font-size:15px}
.entry-list{display:flex;flex-direction:column;gap:20px}
.entry{
  display:grid;grid-template-columns:240px minmax(0,1fr);gap:22px;
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);
  padding:18px;box-shadow:var(--sh-1);text-decoration:none;color:inherit;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.entry:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:var(--c-brand-300);color:inherit}
.entry-cover{position:relative;border-radius:var(--r-md);overflow:hidden;aspect-ratio:16/10;background:var(--c-brand-tint)}
.entry-cover img{width:100%;height:100%;object-fit:cover;transition:transform .3s var(--ease)}
.entry:hover .entry-cover img{transform:scale(1.03)}
.entry-body{display:flex;flex-direction:column;gap:10px;padding:4px 4px 4px 0}
.badge{
  display:inline-flex;align-items:center;gap:6px;padding:4px 12px;border-radius:var(--r-pill);
  font-size:12px;font-weight:600;letter-spacing:.04em;line-height:1.6;
}
.badge-brand{background:var(--c-brand-tint);color:var(--c-brand-600)}
.badge-accent{background:var(--grad-accent);color:#5A3B00}
.badge-line{background:#fff;border:1px solid var(--c-line);color:var(--c-ink-2)}
.entry h3{font-size:19px}
.entry p{color:var(--c-ink-2);font-size:15px;line-height:1.8}
.entry-meta{display:flex;flex-wrap:wrap;gap:16px;font-size:13px;color:var(--c-ink-2);margin-top:auto;padding-top:6px}
.entry-meta span{display:inline-flex;align-items:center;gap:6px}
.dot{width:6px;height:6px;border-radius:50%;background:var(--c-brand-300);display:inline-block}

/* ============ 侧栏 ============ */
.aside{position:sticky;top:76px;display:flex;flex-direction:column;gap:20px}
.side-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);
  padding:22px;box-shadow:var(--sh-1);
}
.side-card h3{font-size:17px;margin-bottom:14px}
.quick-list li + li{margin-top:2px}
.quick-list a{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:11px 12px;border-radius:var(--r-sm);font-size:14px;font-weight:600;color:var(--c-ink);
  transition:background .2s var(--ease),color .2s var(--ease);
}
.quick-list a::after{content:"›";color:var(--c-ink-2);font-size:16px}
.quick-list a:hover{background:var(--c-brand-tint);color:var(--c-brand-600)}
.side-cta{
  background:var(--grad-brand);color:#fff;border:none;box-shadow:var(--sh-2);
}
.side-cta h3{color:#fff}
.side-cta p{color:rgba(255,255,255,.86);font-size:14px;margin-bottom:18px}
.side-cta .btn-primary{width:100%;background:#fff;color:var(--c-brand-600);box-shadow:none}
.side-cta .btn-primary:hover{background:var(--c-accent-soft);color:var(--c-brand-600)}
.notice{
  display:flex;gap:12px;align-items:flex-start;padding:16px 18px;border-radius:var(--r-md);
  background:var(--c-brand-tint);border:1px solid #C9E6DD;color:var(--c-ink-2);font-size:14px;line-height:1.75;
}
.notice strong{color:var(--c-brand-600);display:block;margin-bottom:2px;font-size:14px}

/* ============ 流程 ============ */
.flow-section{background:var(--c-surface);border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line)}
.flow{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;margin-top:8px}
.flow-step{
  position:relative;background:var(--c-bg);border:1px solid var(--c-line);border-radius:var(--r-xl);
  padding:26px 22px;transition:transform .22s var(--ease),box-shadow .22s var(--ease);
}
.flow-step:hover{transform:translateY(-2px);box-shadow:var(--sh-1)}
.flow-num{
  display:inline-grid;place-items:center;width:44px;height:44px;border-radius:14px;
  background:var(--grad-accent);color:#5A3B00;font-weight:800;font-size:16px;
  font-variant-numeric:tabular-nums;margin-bottom:16px;
}
.flow-step h3{font-size:17px;margin-bottom:8px}
.flow-step p{color:var(--c-ink-2);font-size:14px;line-height:1.8}

/* ============ FAQ ============ */
.faq-wrap{max-width:860px;margin:0 auto}
.faq-item{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-md);
  overflow:hidden;transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.faq-item + .faq-item{margin-top:12px}
.faq-item:hover{border-color:var(--c-brand-300)}
.faq-item[open]{border-left:3px solid var(--c-brand);box-shadow:var(--sh-1)}
.faq-item summary{
  list-style:none;cursor:pointer;position:relative;padding:20px 60px 20px 22px;
  font-size:16px;font-weight:600;color:var(--c-ink);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";position:absolute;right:22px;top:50%;transform:translateY(-50%);
  font-size:20px;font-weight:600;color:var(--c-brand);transition:transform .24s var(--ease),color .24s var(--ease);
}
.faq-item[open] summary::after{content:"−";transform:translateY(-50%) rotate(180deg);color:var(--c-action)}
.faq-answer{padding:0 22px 22px;color:var(--c-ink-2);font-size:15px;line-height:1.85}

/* ============ 分页外观 ============ */
.pager{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin-top:40px}
.pager-item{
  min-width:44px;padding:10px 18px;border-radius:var(--r-pill);border:1px solid var(--c-line);
  background:#fff;color:var(--c-ink-2);font-size:14px;font-weight:600;text-align:center;
  transition:all .2s var(--ease);
}
.pager-item:hover{border-color:var(--c-brand-300);background:var(--c-brand-tint);color:var(--c-brand-600)}
.pager-item.is-current{background:var(--c-brand);border-color:var(--c-brand);color:#fff}

/* ============ 底部 CTA ============ */
.cta-band{padding:0 0 96px}
.cta-card{
  background:var(--grad-brand);border-radius:var(--r-xl);padding:52px;
  display:grid;grid-template-columns:minmax(0,1fr) 380px;gap:44px;align-items:center;
  color:#fff;box-shadow:0 40px 70px -40px rgba(15,107,92,.6);
}
.cta-card h2{color:#fff}
.cta-card > div > p{color:rgba(255,255,255,.88);margin-top:14px;max-width:520px}
.steps-inline{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.steps-inline span{
  background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.28);
  border-radius:var(--r-pill);padding:7px 15px;font-size:13px;font-weight:600;
}
.form-card{background:#fff;border-radius:var(--r-lg);padding:26px;box-shadow:var(--sh-2);color:var(--c-ink)}
.form-card h3{font-size:18px;margin-bottom:6px}
.form-card .form-hint{font-size:13px;color:var(--c-ink-2);margin-bottom:18px}
.field{margin-bottom:14px}
.field label{display:block;font-size:13px;font-weight:600;color:var(--c-ink-2);margin-bottom:6px}
.field input[type="text"],.field input[type="tel"]{
  width:100%;padding:13px 16px;border-radius:var(--r-sm);border:1px solid var(--c-line);
  background:#FBFBF8;font-size:15px;transition:border-color .2s var(--ease),background .2s var(--ease);
}
.field input::placeholder{color:#9BAFA8}
.field input:focus{outline:none;border-color:var(--c-brand);background:#fff;box-shadow:0 0 0 3px rgba(15,107,92,.12)}
.code-row{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:10px}
.code-btn{
  border:1px solid var(--c-brand);background:var(--c-brand-tint);color:var(--c-brand-600);
  border-radius:var(--r-sm);padding:0 16px;font-size:14px;font-weight:600;cursor:pointer;
  transition:background .2s var(--ease),color .2s var(--ease);white-space:nowrap;
}
.code-btn:hover{background:var(--c-brand);color:#fff}
.agree{display:flex;gap:10px;align-items:flex-start;font-size:13px;color:var(--c-ink-2);margin:14px 0 16px;line-height:1.7}
.agree input{margin-top:4px;accent-color:var(--c-brand);width:16px;height:16px}
.form-foot{font-size:12px;color:#8A9C96;margin-top:12px;text-align:center}

/* ============ 页脚 ============ */
.site-footer{background:var(--c-dark);color:rgba(255,255,255,.72);padding:64px 0 28px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:36px}
.footer-brand{display:flex;align-items:center;gap:12px;color:#fff;font-weight:800;font-size:17px;margin-bottom:16px}
.footer-brand .logo-mark{width:38px;height:38px;font-size:17px}
.footer-desc{font-size:14px;line-height:1.9;color:rgba(255,255,255,.66);max-width:330px}
.footer-col h3{color:#fff;font-size:15px;font-weight:600;margin-bottom:16px}
.footer-col li + li{margin-top:10px}
.footer-col a{color:rgba(255,255,255,.66);font-size:14px}
.footer-col a:hover{color:#7FD8C0}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:rgba(255,255,255,.55);
}
.footer-bottom .links{display:flex;gap:18px;flex-wrap:wrap}
.footer-bottom a{color:rgba(255,255,255,.55)}
.footer-bottom a:hover{color:#7FD8C0}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .channel-layout{grid-template-columns:minmax(0,1fr) 290px;gap:28px}
  .cta-card{padding:44px;gap:34px}
}
@media (max-width:1023px){
  .section{padding:72px 0}
  .channel-layout{grid-template-columns:1fr}
  .aside{position:static;flex-direction:row;flex-wrap:wrap}
  .aside > *{flex:1 1 280px}
  .flow{grid-template-columns:repeat(2,minmax(0,1fr))}
  .hero-badges{grid-template-columns:repeat(2,minmax(0,1fr))}
  .cta-card{grid-template-columns:1fr;padding:40px 32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  body{font-size:15px}
  .container{padding:0 18px}
  .section{padding:56px 0}
  .brand-inner{height:64px}
  .brand-text span{display:none}
  .brand-actions .ghost-link{display:none}
  .nav-toggle{display:grid}
  .channel-nav{position:static}
  .channel-inner{
    display:none;height:auto;padding:10px 0 14px;flex-direction:column;align-items:stretch;
  }
  .channel-nav.is-open .channel-inner{display:flex}
  .channel-link{text-align:center;padding:12px 18px}
  .page-hero{padding:52px 0 48px}
  .filter-bar{margin-top:0;border-radius:var(--r-md)}
  .entry{grid-template-columns:1fr;gap:14px;padding:16px}
  .entry-cover{aspect-ratio:16/9}
  .entry h3{font-size:17px}
  .flow{grid-template-columns:1fr}
  .hero-badges{grid-template-columns:1fr;gap:12px}
  .aside{flex-direction:column}
  .cta-band{padding-bottom:64px}
  .cta-card{padding:32px 22px;border-radius:var(--r-lg)}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:479px){
  .hero-tag{font-size:12px;padding:6px 12px}
  .filter-bar{padding:14px}
  .pill{font-size:13px;padding:7px 13px}
  .form-card{padding:20px}
}
@media (prefers-reduced-motion:reduce){
  *{transition-duration:.01ms !important;animation-duration:.01ms !important}
  .entry:hover,.btn:hover,.flow-step:hover{transform:none}
}

/* roulang page: category2 */
:root{
  --c-brand:#0F6B5C;
  --c-brand-600:#0C5A4D;
  --c-brand-300:#62C9B4;
  --c-brand-tint:#E7F4F0;
  --c-action:#F2643C;
  --c-action-hover:#D9502B;
  --c-accent:#FFC24B;
  --c-bg:#F5F3EE;
  --c-surface:#FFFFFF;
  --c-dark:#0B1F1B;
  --c-ink:#13231E;
  --c-ink-2:#4A5F58;
  --c-muted:#7C8F88;
  --c-line:#DCE7E2;
  --r-sm:10px;
  --r-md:16px;
  --r-lg:24px;
  --r-xl:32px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(11,31,27,.04),0 8px 24px -12px rgba(11,31,27,.12);
  --sh-2:0 24px 48px -24px rgba(15,107,92,.28);
  --grad-brand:linear-gradient(120deg,#0F6B5C 0%,#17A184 55%,#7FD8C0 100%);
  --grad-action:linear-gradient(135deg,#F2643C 0%,#FF8A5F 100%);
  --grad-accent:linear-gradient(135deg,#FFC24B 0%,#FFE1A3 100%);
  --ease:cubic-bezier(.2,.7,.3,1);
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  color:var(--c-ink-2);
  background:var(--c-bg);
}
img{max-width:100%;display:block}
a{color:var(--c-brand);text-decoration:none;transition:color .2s var(--ease)}
a:hover{color:var(--c-action)}
button,input{font:inherit;color:inherit}
button{cursor:pointer}
h1,h2,h3,h4{margin:0;color:var(--c-ink);font-family:var(--font-cn)}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--c-brand);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
@media (min-width:1440px){.container{max-width:1280px}}

/* ---------- header ---------- */
.site-header{position:relative;z-index:60;background:var(--c-surface)}
.brand-row{background:var(--c-surface)}
.brand-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;height:72px}
.logo{display:flex;align-items:center;gap:10px;color:var(--c-ink);font-weight:800}
.logo:hover{color:var(--c-brand-600)}
.logo-mark{
  width:38px;height:38px;border-radius:12px;flex:none;
  background:var(--grad-brand);color:#fff;
  display:grid;place-items:center;
  font-size:18px;font-weight:800;letter-spacing:.02em;
  box-shadow:0 12px 24px -16px rgba(15,107,92,.9);
}
.logo-text{font-size:17px;letter-spacing:.01em;line-height:1.2}
.brand-actions{display:flex;align-items:center;gap:12px}
.icon-btn{
  width:40px;height:40px;border-radius:12px;display:grid;place-items:center;
  border:1px solid var(--c-line);background:var(--c-surface);color:var(--c-ink-2);
  transition:border-color .2s var(--ease),background .2s var(--ease),color .2s var(--ease);
}
.icon-btn:hover{border-color:var(--c-brand-300);color:var(--c-brand);background:var(--c-brand-tint)}
.nav-toggle{display:none;width:42px;height:42px;border-radius:12px;border:1px solid var(--c-line);background:var(--c-surface);color:var(--c-ink);place-items:center}
.nav-toggle:hover{background:var(--c-brand-tint);border-color:var(--c-brand-300)}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border:1px solid transparent;border-radius:var(--r-pill);
  padding:12px 22px;font-size:15px;font-weight:600;line-height:1.4;
  transition:transform .18s var(--ease),box-shadow .18s var(--ease),background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease);
}
.btn-primary{background:var(--grad-action);color:#fff;box-shadow:0 14px 26px -16px rgba(242,100,60,.95)}
.btn-primary:hover{background:linear-gradient(135deg,#D9502B 0%,#F2643C 100%);color:#fff;transform:translateY(-2px);box-shadow:0 20px 34px -18px rgba(242,100,60,1)}
.btn-outline{border-color:var(--c-brand);color:var(--c-brand);background:transparent}
.btn-outline:hover{background:var(--c-brand-tint);color:var(--c-brand-600);transform:translateY(-2px)}
.btn-ghost{background:transparent;color:var(--c-ink-2);padding:10px 14px}
.btn-ghost:hover{background:var(--c-brand-tint);color:var(--c-brand-600)}
.btn-dark{background:var(--c-dark);color:#fff}
.btn-dark:hover{background:#12312a;color:#fff;transform:translateY(-2px)}
.btn-light{background:rgba(255,255,255,.16);border-color:rgba(255,255,255,.42);color:#fff}
.btn-light:hover{background:rgba(255,255,255,.26);color:#fff;transform:translateY(-2px)}
.btn-sm{padding:9px 16px;font-size:14px}
.btn-block{width:100%}
.btn[disabled]{opacity:.4;pointer-events:none}

/* ---------- channel nav ---------- */
.channel-nav{
  display:flex;align-items:center;gap:8px;height:52px;
  background:var(--c-surface);border-bottom:1px solid var(--c-line);
  padding-inline:max(24px,calc((100vw - 1200px) / 2));
  overflow-x:auto;scroll-snap-type:x proximity;
  position:sticky;top:0;z-index:55;
  transition:box-shadow .2s var(--ease),background .2s var(--ease);
  -webkit-overflow-scrolling:touch;
}
.channel-nav::-webkit-scrollbar{height:0}
.channel-nav.stuck{box-shadow:0 10px 26px -18px rgba(11,31,27,.55)}
.channel-link{
  scroll-snap-align:start;white-space:nowrap;
  padding:8px 18px;border-radius:var(--r-pill);
  font-size:15px;font-weight:500;color:var(--c-ink-2);
  transition:background .2s var(--ease),color .2s var(--ease),box-shadow .2s var(--ease);
}
.channel-link:hover{background:var(--c-brand-tint);color:var(--c-brand-600)}
.channel-link.active{background:var(--c-brand);color:#fff;box-shadow:0 12px 22px -16px rgba(15,107,92,.95)}

/* ---------- drawer ---------- */
.drawer{position:fixed;inset:0;background:rgba(11,31,27,.52);opacity:0;pointer-events:none;transition:opacity .2s var(--ease);z-index:90}
.drawer.open{opacity:1;pointer-events:auto}
.drawer-panel{
  position:absolute;top:0;right:0;width:min(330px,88vw);height:100%;
  background:var(--c-surface);padding:22px;
  display:flex;flex-direction:column;gap:6px;
  transform:translateX(100%);transition:transform .24s var(--ease);
  box-shadow:-24px 0 48px -24px rgba(11,31,27,.4);
}
.drawer.open .drawer-panel{transform:none}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:10px}
.drawer-title{font-size:15px;font-weight:700;color:var(--c-ink)}
.drawer-link{display:block;padding:14px 16px;border-radius:var(--r-md);color:var(--c-ink);font-weight:500;font-size:16px}
.drawer-link:hover{background:var(--c-brand-tint);color:var(--c-brand-600)}
.drawer-link.active{background:var(--c-brand-tint);color:var(--c-brand-600);font-weight:700}
.drawer-cta{margin-top:auto;display:grid;gap:10px;padding-top:18px;border-top:1px solid var(--c-line)}

/* ---------- hero ---------- */
.cat-hero{position:relative;overflow:hidden;background:var(--c-dark);color:#fff;padding:70px 0 60px}
.cat-hero::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
  opacity:.72;
}
.cat-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(120deg,rgba(11,31,27,.95) 0%,rgba(15,107,92,.84) 48%,rgba(23,161,132,.46) 100%);
}
.cat-hero .container{position:relative;z-index:2}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.72);margin-bottom:20px;flex-wrap:wrap}
.breadcrumb a{color:rgba(255,255,255,.88)}
.breadcrumb a:hover{color:#FFE1A3}
.cat-hero h1{
  color:#fff;font-size:clamp(30px,4.4vw,44px);line-height:1.2;font-weight:800;
  margin:0 0 16px;max-width:20em;
}
.hero-lead{font-size:17px;line-height:1.95;color:rgba(255,255,255,.87);max-width:780px}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin:22px 0 26px}
.hero-stats{display:flex;flex-wrap:wrap;gap:14px}
.stat{
  background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.22);
  border-radius:var(--r-md);padding:14px 18px;min-width:150px;
  backdrop-filter:blur(6px);
}
.stat-num{
  font-size:24px;font-weight:800;line-height:1.2;color:#fff;
  font-variant-numeric:tabular-nums;
  background:var(--grad-accent);-webkit-background-clip:text;background-clip:text;color:transparent;
  -webkit-text-fill-color:transparent;
}
.stat-label{font-size:13px;color:rgba(255,255,255,.8);margin-top:4px}

/* ---------- badges & pills ---------- */
.badge{display:inline-flex;align-items:center;gap:6px;padding:5px 12px;border-radius:var(--r-pill);font-size:12px;font-weight:600;letter-spacing:.04em;line-height:1.6}
.badge-mint{background:var(--c-brand-tint);color:var(--c-brand-600)}
.badge-accent{background:var(--grad-accent);color:#7A4A00}
.badge-glass{background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.3);color:#fff}
.badge-solid{background:var(--c-brand);color:#fff}

/* ---------- sections ---------- */
.section{padding:96px 0}
.section.tight{padding:76px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:40px}
.section-title{font-size:clamp(24px,2.8vw,32px);line-height:1.3;font-weight:700;margin-bottom:12px}
.section-desc{font-size:15px;color:var(--c-ink-2);max-width:660px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:700;
  color:var(--c-brand-600);letter-spacing:.1em;margin-bottom:12px;
  text-transform:uppercase;
}
.eyebrow::before{content:"";width:22px;height:3px;border-radius:3px;background:var(--grad-accent)}
.link-more{font-size:14px;font-weight:600;color:var(--c-brand)}
.link-more:hover{color:var(--c-action)}

/* ---------- filter pills ---------- */
.filter-bar{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:32px}
.pill{
  padding:9px 18px;border-radius:var(--r-pill);
  border:1px solid var(--c-line);background:var(--c-surface);color:var(--c-ink-2);
  font-size:14px;font-weight:500;
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),transform .18s var(--ease);
}
.pill:hover{border-color:var(--c-brand-300);background:var(--c-brand-tint);color:var(--c-brand-600);transform:translateY(-2px)}
.pill.active{background:var(--c-brand);border-color:var(--c-brand);color:#fff}

/* ---------- cards grid ---------- */
.grid-cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.card{
  display:flex;flex-direction:column;overflow:hidden;
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);
  box-shadow:var(--sh-1);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:var(--c-brand-300)}
.card-media{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--c-brand-tint)}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .3s var(--ease)}
.card:hover .card-media img{transform:scale(1.03)}
.card-tag{position:absolute;top:12px;left:12px;box-shadow:0 8px 18px -12px rgba(11,31,27,.6)}
.card-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
.card-title{
  font-size:18px;line-height:1.45;font-weight:600;color:var(--c-ink);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-text{font-size:14px;line-height:1.75;color:var(--c-ink-2);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.card-meta{
  margin-top:auto;padding-top:12px;border-top:1px dashed var(--c-line);
  display:flex;justify-content:space-between;gap:10px;font-size:13px;color:var(--c-muted);flex-wrap:wrap;
}
.grid-strip{
  grid-column:1 / -1;border-radius:var(--r-xl);
  background:var(--grad-brand);color:#fff;padding:30px 34px;
  display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap;
  box-shadow:var(--sh-2);position:relative;overflow:hidden;
}
.grid-strip::after{
  content:"";position:absolute;right:-60px;top:-60px;width:220px;height:220px;border-radius:50%;
  background:rgba(255,255,255,.14);
}
.grid-strip h3{color:#fff;font-size:22px;font-weight:700;margin-bottom:6px;position:relative;z-index:1}
.grid-strip p{color:rgba(255,255,255,.86);font-size:14px;position:relative;z-index:1}
.grid-strip .btn{position:relative;z-index:1}

/* ---------- tier ---------- */
.tier-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;align-items:start}
.tier-card{
  position:relative;background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-xl);padding:30px 26px;box-shadow:var(--sh-1);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease);
}
.tier-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}
.tier-card.featured{
  border:2px solid transparent;
  background:linear-gradient(var(--c-surface),var(--c-surface)) padding-box,var(--grad-brand) border-box;
  transform:translateY(-8px);
}
.tier-card.featured:hover{transform:translateY(-10px)}
.tier-name{font-size:20px;font-weight:700;color:var(--c-ink)}
.tier-price{font-size:14px;color:var(--c-muted);margin-top:6px}
.tier-list{display:grid;gap:12px;margin-top:22px}
.tier-list li{display:flex;gap:10px;font-size:14.5px;line-height:1.7;color:var(--c-ink-2)}
.tick{flex:none;color:var(--c-brand);font-weight:800}
.cross{flex:none;color:#B9C7C1;font-weight:800}
.tier-badge{position:absolute;top:-14px;left:26px}
.tier-foot{margin-top:24px;padding-top:18px;border-top:1px solid var(--c-line)}
.tier-foot a{font-size:14px;font-weight:600}

/* ---------- steps ---------- */
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px}
.step{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);
  padding:26px 22px;box-shadow:var(--sh-1);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease);
}
.step:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}
.step-num{
  width:38px;height:38px;border-radius:12px;display:grid;place-items:center;
  background:var(--grad-accent);color:#7A4A00;font-weight:800;font-size:15px;
  font-variant-numeric:tabular-nums;margin-bottom:16px;
}
.step h3{font-size:17px;font-weight:600;margin-bottom:8px}
.step p{font-size:14px;line-height:1.75;color:var(--c-ink-2)}

/* ---------- faq ---------- */
.faq-wrap{max-width:880px;margin:0 auto;display:grid;gap:14px}
.faq-item{
  position:relative;background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-lg);overflow:hidden;
  transition:box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.faq-item:hover{border-color:var(--c-brand-300)}
.faq-item::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;
  background:var(--grad-brand);transform:scaleY(0);transform-origin:top;
  transition:transform .2s var(--ease);
}
.faq-item.open{box-shadow:var(--sh-1)}
.faq-item.open::before{transform:scaleY(1)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 24px;background:none;border:0;text-align:left;
  font-size:16px;font-weight:600;color:var(--c-ink);
}
.faq-icon{flex:none;color:var(--c-brand);font-size:20px;line-height:1;transition:transform .18s var(--ease)}
.faq-item.open .faq-icon{transform:rotate(180deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .24s var(--ease)}
.faq-a-inner{padding:0 24px 22px;font-size:15px;line-height:1.85;color:var(--c-ink-2)}

/* ---------- cta ---------- */
.cta-section{padding:0 0 96px}
.cta-card{
  position:relative;overflow:hidden;
  background:var(--grad-brand);color:#fff;border-radius:var(--r-xl);
  padding:48px;display:grid;grid-template-columns:1.05fr .95fr;gap:44px;
  box-shadow:var(--sh-2);
}
.cta-card::after{
  content:"";position:absolute;left:-90px;bottom:-120px;width:320px;height:320px;border-radius:50%;
  background:rgba(255,255,255,.1);
}
.cta-left{position:relative;z-index:1}
.cta-left h2{color:#fff;font-size:clamp(24px,2.6vw,30px);line-height:1.3;font-weight:700;margin-bottom:14px}
.cta-left p{color:rgba(255,255,255,.86);font-size:15px;max-width:520px}
.cta-steps{display:grid;gap:14px;margin-top:26px}
.cta-step{display:flex;gap:14px;align-items:flex-start;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.2);border-radius:var(--r-md);padding:14px 16px}
.cta-step span.num{
  flex:none;width:26px;height:26px;border-radius:50%;display:grid;place-items:center;
  background:var(--grad-accent);color:#7A4A00;font-size:13px;font-weight:800;font-variant-numeric:tabular-nums;
}
.cta-step b{display:block;color:#fff;font-size:15px;font-weight:600}
.cta-step em{font-style:normal;font-size:13.5px;color:rgba(255,255,255,.8)}
.form-card{
  position:relative;z-index:1;background:var(--c-surface);border-radius:var(--r-lg);
  padding:28px;color:var(--c-ink);box-shadow:0 24px 48px -28px rgba(11,31,27,.5);
}
.form-card h3{font-size:19px;font-weight:700;margin-bottom:6px}
.form-note{font-size:13.5px;color:var(--c-muted);margin-bottom:20px}
.field{display:grid;gap:8px;margin-bottom:16px}
.field label{font-size:14px;font-weight:600;color:var(--c-ink)}
.input{
  width:100%;padding:13px 16px;border-radius:var(--r-md);
  border:1px solid var(--c-line);background:#fff;color:var(--c-ink);font-size:15px;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.input::placeholder{color:#9EB0A9}
.input:hover{border-color:var(--c-brand-300)}
.input:focus{outline:none;border-color:var(--c-brand-300);box-shadow:0 0 0 4px rgba(15,107,92,.13)}
.code-row{display:flex;gap:10px}
.code-row .input{flex:1;min-width:0}
.agree{display:flex;align-items:flex-start;gap:10px;font-size:13px;color:var(--c-ink-2);margin:6px 0 18px}
.agree input{width:18px;height:18px;margin-top:3px;accent-color:var(--c-brand);flex:none}
.tip{font-size:13px;color:var(--c-muted);margin-top:14px;line-height:1.7}

/* ---------- footer ---------- */
.site-footer{background:var(--c-dark);color:rgba(255,255,255,.7);padding:72px 0 28px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:32px}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:800;font-size:17px;margin-bottom:14px}
.footer-desc{font-size:14px;line-height:1.85;color:rgba(255,255,255,.62);max-width:340px}
.footer-col h3{font-size:15px;color:#fff;margin-bottom:14px;font-weight:600}
.footer-col ul{display:grid;gap:10px}
.footer-col a{color:rgba(255,255,255,.66);font-size:14px}
.footer-col a:hover{color:#7FD8C0}
.footer-bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.5);
}
.footer-bottom .links{display:flex;gap:18px;flex-wrap:wrap}
.footer-bottom a{color:rgba(255,255,255,.6)}
.footer-bottom a:hover{color:#7FD8C0}

/* ---------- responsive ---------- */
@media (max-width:1023px){
  .section{padding:64px 0}
  .grid-cards{grid-template-columns:repeat(2,minmax(0,1fr))}
  .tier-grid{grid-template-columns:1fr;gap:20px}
  .tier-card.featured{transform:none}
  .tier-card.featured:hover{transform:translateY(-2px)}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr))}
  .cta-card{grid-template-columns:1fr;padding:34px;gap:30px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .cat-hero{padding:56px 0 48px}
}
@media (max-width:767px){
  .section{padding:48px 0}
  .brand-inner{height:66px}
  .brand-actions .btn-ghost{display:none}
  .nav-toggle{display:grid}
  .grid-cards{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
  .card-title{font-size:17px}
  .grid-strip{padding:24px 22px}
  .cat-hero{padding:44px 0 40px}
  .cat-hero::before{background-position:center 30%}
  .hero-stats{gap:10px}
  .stat{flex:1 1 140px;min-width:0;padding:12px 14px}
  .cta-card{padding:24px}
  .form-card{padding:22px}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .faq-q{padding:18px 18px;font-size:15.5px}
  .faq-a-inner{padding:0 18px 18px}
}
@media (max-width:519px){
  .container{padding:0 18px}
  .logo-text{font-size:15.5px}
  .btn{padding:11px 18px;font-size:14.5px}
  .hero-lead{font-size:15.5px}
  .code-row{flex-direction:column}
  .code-row .btn{width:100%}
  .section-head{margin-bottom:28px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important}
  .card:hover,.step:hover,.tier-card:hover,.pill:hover,.btn:hover{transform:none !important}
  .card:hover .card-media img{transform:none !important}
}