/* roulang page: index */
:root{
  --ink:#10312D;
  --ink-2:#17403B;
  --brand:#12A87C;
  --brand-d:#0E8E69;
  --lime:#D8F94E;
  --coral:#FF6B4A;
  --bg:#F7F6F1;
  --bg-2:#EFEEE7;
  --card:#FFFFFF;
  --line:#E2E0D6;
  --text:#1B2624;
  --muted:#63716D;
  --on-ink:#F2F5F3;
  --on-ink-2:rgba(242,245,243,.66);
  --ok:#12A87C;
  --warn:#E0A429;
  --err:#D9534F;
  --r-lg:20px;
  --r-md:16px;
  --r-sm:12px;
  --sh-1:0 1px 2px rgba(16,49,45,.06);
  --sh-2:0 6px 20px -8px rgba(16,49,45,.18);
  --sh-3:0 14px 32px -12px rgba(16,49,45,.28);
  --ease:180ms cubic-bezier(.2,.7,.3,1);
  --font:"HarmonyOS Sans SC","PingFang SC","Source Han Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;font-family:var(--font);font-size:16px;line-height:1.8;color:var(--text);
  background:var(--bg);letter-spacing:.01em;font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none}
a{color:inherit;text-decoration:none}
a:hover{color:var(--brand)}
button,input{font:inherit;color:inherit}
button{cursor:pointer;border:0;background:none}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
h1,h2,h3,h4{line-height:1.3;letter-spacing:-.01em}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
.section{padding:80px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:28px}
.section-head h2{font-size:clamp(22px,2.4vw,28px);font-weight:700}
.section-head p{color:var(--muted);font-size:14px;margin-top:8px}
.link-more{font-size:14px;font-weight:600;color:var(--brand);display:inline-flex;align-items:center;gap:6px;white-space:nowrap}
.link-more i{transition:transform var(--ease)}
.link-more:hover i{transform:translateX(3px)}
.badge{display:inline-flex;align-items:center;gap:6px;height:24px;padding:0 10px;border-radius:999px;font-size:12px;font-weight:600;letter-spacing:.02em}
.badge-lime{background:var(--lime);color:var(--ink)}
.badge-brand{background:rgba(18,168,124,.1);color:var(--brand-d)}
.badge-warn{background:rgba(224,164,41,.12);color:#9c7111}
.badge-muted{background:var(--bg-2);color:var(--muted)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:44px;padding:0 22px;border-radius:var(--r-sm);font-weight:600;font-size:15px;transition:transform var(--ease),background var(--ease),color var(--ease),box-shadow var(--ease)}
.btn-primary{background:var(--brand);color:#fff;box-shadow:var(--sh-1)}
.btn-primary:hover{background:var(--brand-d);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-primary:active{transform:translateY(1px)}
.btn-lime{background:var(--lime);color:var(--ink)}
.btn-lime:hover{background:#cdf13f;color:var(--ink);transform:translateY(-1px)}
.btn-ghost{background:transparent;color:var(--ink);border:1.5px solid var(--ink)}
.btn-ghost:hover{background:var(--bg-2);color:var(--ink)}
.btn-coral{background:var(--coral);color:#fff}
.btn-coral:hover{background:#f25636;color:#fff;transform:translateY(-1px)}
.btn:disabled{opacity:.5;pointer-events:none}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:80;background:rgba(247,246,241,.86);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid var(--line);transition:box-shadow var(--ease)}
.site-header.scrolled{box-shadow:var(--sh-2)}
.nav-bar{display:flex;align-items:center;gap:24px;height:72px;transition:height var(--ease)}
.site-header.scrolled .nav-bar{height:60px}
.logo{display:flex;align-items:center;gap:10px;font-weight:700;font-size:16px;color:var(--ink);white-space:nowrap}
.logo:hover{color:var(--ink)}
.logo-mark{position:relative;width:20px;height:20px;border-radius:6px;background:var(--ink);flex:none}
.logo-mark::after{content:"";position:absolute;right:-3px;bottom:-3px;width:9px;height:9px;border-radius:50%;background:var(--lime);border:2px solid var(--bg)}
.logo-badge{font-size:11px;font-weight:600;color:var(--brand-d);background:rgba(18,168,124,.1);padding:2px 7px;border-radius:999px}
.nav-channels{display:flex;align-items:center;gap:6px;margin-left:8px}
.nav-channels a{position:relative;font-size:14px;font-weight:500;color:var(--ink);padding:8px 12px;border-radius:8px;transition:color var(--ease),background var(--ease)}
.nav-channels a:hover{color:var(--brand);background:rgba(18,168,124,.06)}
.nav-channels a.active{color:var(--brand)}
.nav-channels a.active::after{content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;border-radius:2px;background:var(--brand)}
.nav-tools{margin-left:auto;display:flex;align-items:center;gap:12px}
.nav-search{display:flex;align-items:center;gap:8px;width:200px;height:38px;padding:0 14px;background:#fff;border:1px solid var(--line);border-radius:999px;transition:border-color var(--ease),box-shadow var(--ease)}
.nav-search i{color:var(--muted);font-size:13px}
.nav-search input{border:0;background:none;outline:none;width:100%;font-size:14px}
.nav-search input::placeholder{color:#9aa5a1}
.nav-search:focus-within{border-color:var(--brand);box-shadow:0 0 0 4px rgba(18,168,124,.15)}
.btn-login{height:38px;padding:0 18px;border-radius:var(--r-sm);border:1.5px solid var(--ink);font-size:14px;font-weight:600;display:inline-flex;align-items:center;transition:background var(--ease),color var(--ease)}
.btn-login:hover{background:var(--ink);color:#fff}
.btn-start{height:38px;padding:0 18px;border-radius:999px;background:var(--lime);color:var(--ink);font-size:14px;font-weight:700;display:inline-flex;align-items:center;gap:6px;transition:transform var(--ease),box-shadow var(--ease)}
.btn-start:hover{color:var(--ink);transform:translateY(-1px);box-shadow:0 8px 18px -10px rgba(16,49,45,.5)}
.nav-toggle{display:none;width:42px;height:42px;border-radius:12px;border:1px solid var(--line);background:#fff;font-size:16px;color:var(--ink)}

/* drawer */
.drawer-mask{position:fixed;inset:0;background:rgba(16,49,45,.4);opacity:0;visibility:hidden;transition:opacity var(--ease);z-index:90}
.drawer{position:fixed;top:0;right:0;bottom:0;width:84%;max-width:360px;background:var(--bg);z-index:100;transform:translateX(100%);transition:transform 220ms cubic-bezier(.2,.7,.3,1);display:flex;flex-direction:column;padding:20px;gap:16px;overflow-y:auto}
.drawer.open{transform:translateX(0)}
.drawer-mask.open{opacity:1;visibility:visible}
.drawer-head{display:flex;align-items:center;justify-content:space-between}
.drawer-search{display:flex;align-items:center;gap:8px;height:44px;padding:0 14px;background:#fff;border:1px solid var(--line);border-radius:999px}
.drawer-search input{border:0;outline:none;background:none;width:100%;font-size:14px}
.drawer-links{display:flex;flex-direction:column}
.drawer-links a{display:flex;align-items:center;justify-content:space-between;height:52px;font-size:15px;font-weight:600;border-bottom:1px solid var(--line)}
.drawer-links a i{color:var(--muted);font-size:12px}
.drawer-foot{margin-top:auto}
.drawer-foot .btn{width:100%}

/* ---------- hero ---------- */
.hero{position:relative;overflow:hidden;padding:72px 0 80px}
.hero::before,.hero::after{content:"";position:absolute;border-radius:50%;pointer-events:none;filter:blur(2px)}
.hero::before{width:520px;height:520px;left:-160px;top:-140px;background:radial-gradient(circle,rgba(18,168,124,.09),transparent 68%)}
.hero::after{width:460px;height:460px;right:-120px;bottom:-160px;background:radial-gradient(circle,rgba(216,249,78,.14),transparent 66%)}
.hero-grid{position:relative;display:grid;grid-template-columns:7fr 5fr;gap:56px;align-items:center}
.hero-eyebrow{display:inline-flex;align-items:center;gap:8px;background:#fff;border:1px solid var(--line);border-radius:999px;padding:6px 14px;font-size:13px;color:var(--muted);box-shadow:var(--sh-1)}
.hero-eyebrow strong{color:var(--ink);font-weight:700}
.hero h1{font-size:clamp(28px,4vw,48px);font-weight:800;margin:22px 0 18px;line-height:1.22}
.hero h1 .hl{background:linear-gradient(transparent 62%,var(--lime) 62%);padding:0 2px}
.hero-sub{font-size:17px;color:var(--muted);max-width:560px;line-height:1.85}
.hero-actions{display:flex;gap:14px;margin:30px 0 34px;flex-wrap:wrap}
.hero-actions .btn{height:48px}
.hero-stats{display:flex;gap:36px;flex-wrap:wrap}
.hero-stats div{display:flex;flex-direction:column;gap:2px}
.hero-stats b{font-size:22px;font-weight:800;color:var(--ink)}
.hero-stats span{font-size:13px;color:var(--muted)}
.hero-stage{position:relative;height:560px;display:flex;align-items:center;justify-content:center}
.stage-card{position:absolute;border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-3);background:var(--ink)}
.stage-card img{width:100%;height:100%;object-fit:cover}
.stage-card.back-1{width:300px;height:534px;transform:rotate(-4deg) scale(.94);opacity:.7}
.stage-card.back-2{width:300px;height:534px;transform:rotate(4deg) scale(.88);opacity:.55}
.stage-card.main{width:300px;height:534px;z-index:3}
.stage-card.main::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(16,49,45,.05) 30%,rgba(16,49,45,.78))}
.stage-caption{position:absolute;left:0;right:0;bottom:0;padding:22px;color:var(--on-ink);z-index:4}
.stage-caption .badge{margin-bottom:10px}
.stage-caption h3{font-size:17px;font-weight:700;line-height:1.5}
.stage-caption p{font-size:13px;color:var(--on-ink-2);margin-top:6px}
.stage-play{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:56px;height:56px;border-radius:50%;background:rgba(216,249,78,.92);color:var(--ink);display:flex;align-items:center;justify-content:center;font-size:18px;z-index:5;box-shadow:0 10px 26px -10px rgba(16,49,45,.6)}

/* ---------- rail / 爆款片段 ---------- */
.rail-wrap{position:relative}
.rail{display:flex;gap:20px;overflow-x:auto;scroll-snap-type:x mandatory;-webkit-overflow-scrolling:touch;padding:6px 4px 18px;scrollbar-width:none}
.rail::-webkit-scrollbar{display:none}
.clip-card{flex:0 0 260px;scroll-snap-align:start;background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);box-shadow:var(--sh-1);overflow:hidden;transition:transform var(--ease),box-shadow var(--ease);display:block}
.clip-card:hover{transform:translateY(-2px);box-shadow:var(--sh-3)}
.clip-thumb{position:relative;aspect-ratio:3/4;overflow:hidden;background:var(--bg-2)}
.clip-thumb img{width:100%;height:100%;object-fit:cover;transition:transform var(--ease)}
.clip-card:hover .clip-thumb img{transform:scale(1.04)}
.clip-time{position:absolute;right:8px;bottom:8px;background:rgba(16,49,45,.72);color:#fff;font-size:12px;padding:2px 8px;border-radius:6px}
.clip-hot{position:absolute;left:8px;top:8px}
.clip-body{padding:14px 16px 16px}
.clip-body h3{font-size:15px;font-weight:600;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;min-height:45px}
.clip-meta{display:flex;align-items:center;gap:8px;font-size:12px;color:var(--muted);margin-top:10px}
.rail-btn{position:absolute;top:calc(50% - 26px);width:44px;height:44px;border-radius:50%;background:#fff;border:1px solid var(--line);box-shadow:var(--sh-2);color:var(--ink);display:flex;align-items:center;justify-content:center;z-index:6;transition:background var(--ease),transform var(--ease)}
.rail-btn:hover{background:var(--lime);transform:translateY(-1px)}
.rail-btn.prev{left:-12px}
.rail-btn.next{right:-12px}

/* ---------- 清单 ---------- */
.list-grid{display:grid;grid-template-columns:1fr 1fr;gap:0 48px}
.list-grid.second{margin-top:8px}
.list-grid.second .pick-item:nth-child(odd){transform:translateX(0)}
.pick-item{display:flex;gap:18px;align-items:center;padding:20px 0;border-bottom:1px dashed var(--line)}
.pick-num{flex:none;width:44px;height:44px;border-radius:50%;border:1.5px solid var(--lime);color:var(--ink);font-weight:700;font-size:15px;display:flex;align-items:center;justify-content:center;background:rgba(216,249,78,.22)}
.pick-text{flex:1;min-width:0}
.pick-text h3{font-size:16px;font-weight:600}
.pick-text p{font-size:13px;color:var(--muted);margin-top:4px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.pick-thumb{flex:none;width:88px;height:88px;border-radius:var(--r-sm);overflow:hidden;background:var(--bg-2)}
.pick-thumb img{width:100%;height:100%;object-fit:cover}

/* ---------- 口碑 ---------- */
.voice-rail{display:flex;gap:18px;overflow-x:auto;-webkit-overflow-scrolling:touch;padding-bottom:12px;scrollbar-width:none}
.voice-rail::-webkit-scrollbar{display:none}
.voice-card{flex:0 0 320px;background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);box-shadow:var(--sh-1);padding:18px}
.voice-top{display:flex;align-items:center;gap:12px}
.avatar{width:38px;height:38px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:700;color:#fff;background:var(--brand);font-size:15px}
.voice-name{font-size:14px;font-weight:600}
.voice-time{font-size:12px;color:var(--muted)}
.voice-stars{margin-left:auto;color:var(--coral);font-size:12px}
.voice-text{font-size:14px;color:var(--muted);line-height:1.75;margin-top:12px;min-height:74px}

/* ---------- 资讯动态 ---------- */
.news-grid{display:grid;grid-template-columns:2fr 1fr;gap:24px;align-items:start}
.post-feature{background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh-1);overflow:hidden;display:block;transition:transform var(--ease),box-shadow var(--ease)}
.post-feature:hover{transform:translateY(-2px);box-shadow:var(--sh-3)}
.post-feature .thumb{aspect-ratio:16/9;overflow:hidden;background:var(--bg-2)}
.post-feature .thumb img{width:100%;height:100%;object-fit:cover;transition:transform var(--ease)}
.post-feature:hover .thumb img{transform:scale(1.04)}
.post-feature .body{padding:24px}
.post-feature h3{font-size:22px;font-weight:700;line-height:1.4;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;min-height:62px}
.post-feature p{font-size:14px;color:var(--muted);margin-top:12px;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.post-meta{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--muted);margin-top:16px}
.news-side{display:flex;flex-direction:column;gap:18px}
.post-mini{display:flex;gap:14px;background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);box-shadow:var(--sh-1);padding:14px;transition:transform var(--ease),box-shadow var(--ease)}
.post-mini:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}
.post-mini .thumb{flex:none;width:120px;height:90px;border-radius:var(--r-sm);overflow:hidden;background:var(--bg-2)}
.post-mini .thumb img{width:100%;height:100%;object-fit:cover}
.post-mini h3{font-size:15px;font-weight:600;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-mini p{font-size:13px;color:var(--muted);margin-top:6px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-mini .post-meta{margin-top:8px;font-size:12px}
.empty-state{min-height:180px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;background:var(--card);border:1px dashed var(--line);border-radius:var(--r-md);color:var(--muted);font-size:14px}
.empty-state i{font-size:24px;color:var(--brand)}
.skeleton{background:var(--bg-2);border-radius:var(--r-md);min-height:180px;overflow:hidden;position:relative}
.skeleton::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,transparent,rgba(255,255,255,.7),transparent);animation:shim 1.4s infinite}
@keyframes shim{0%{transform:translateX(-100%)}100%{transform:translateX(100%)}}

/* ---------- FAQ ---------- */
.faq{max-width:820px;margin:0 auto;background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh-1);overflow:hidden}
.faq details{border-bottom:1px solid var(--line)}
.faq details:last-child{border-bottom:0}
.faq summary{display:flex;align-items:center;gap:16px;padding:20px 24px;font-size:16px;font-weight:600;cursor:pointer;list-style:none}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";margin-left:auto;width:26px;height:26px;border-radius:50%;border:1px solid var(--line);color:var(--brand);display:flex;align-items:center;justify-content:center;font-size:16px;font-weight:600;transition:transform var(--ease),background var(--ease)}
.faq details[open] summary::after{transform:rotate(45deg);background:rgba(18,168,124,.1)}
.faq .answer{padding:0 24px 20px;color:var(--muted);font-size:15px;line-height:1.75}

/* ---------- CTA ---------- */
.cta-band{position:relative;overflow:hidden;border-radius:24px;background:var(--ink);color:var(--on-ink);padding:56px 48px;display:grid;grid-template-columns:1.4fr 1fr;gap:32px;align-items:center}
.cta-band::after{content:"";position:absolute;right:-80px;top:-80px;width:320px;height:320px;border-radius:50%;background:radial-gradient(circle,rgba(216,249,78,.22),transparent 68%)}
.cta-band h2{font-size:clamp(22px,2.6vw,30px);font-weight:700;color:var(--on-ink)}
.cta-band p{color:var(--on-ink-2);font-size:15px;margin-top:14px;max-width:560px}
.cta-side{position:relative;z-index:2;display:flex;flex-direction:column;gap:14px}
.cta-side .btn{width:100%;height:50px}
.cta-note{font-size:13px;color:var(--on-ink-2);text-align:center}

/* ---------- sticky bar ---------- */
.buy-bar{position:fixed;right:24px;bottom:24px;z-index:70;width:320px;background:#fff;border:1px solid var(--line);border-radius:999px;box-shadow:var(--sh-3);display:flex;align-items:center;gap:12px;padding:10px 12px 10px 18px;opacity:0;visibility:hidden;transform:translateY(12px);transition:opacity var(--ease),transform var(--ease),visibility var(--ease)}
.buy-bar.show{opacity:1;visibility:visible;transform:translateY(0)}
.buy-bar .txt{flex:1;font-size:13px;color:var(--muted);line-height:1.3}
.buy-bar .txt b{display:block;font-size:14px;color:var(--ink)}
.buy-bar .btn{height:40px;padding:0 18px;font-size:14px}

/* ---------- footer ---------- */
.site-footer{background:var(--ink);color:var(--on-ink);padding:64px 0 0;margin-top:20px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand .logo{color:var(--on-ink)}
.footer-brand .logo-mark{background:var(--on-ink)}
.footer-brand .logo-mark::after{border-color:var(--ink)}
.footer-brand .logo-badge{background:rgba(216,249,78,.16);color:var(--lime)}
.footer-brand p{color:var(--on-ink-2);font-size:14px;margin-top:16px;max-width:320px}
.footer-col h4{font-size:14px;font-weight:700;color:var(--on-ink);letter-spacing:.02em}
.footer-col ul{margin-top:16px;display:flex;flex-direction:column;gap:12px}
.footer-col a{font-size:14px;color:var(--on-ink-2);transition:color var(--ease)}
.footer-col a:hover{color:var(--lime)}
.footer-cta p{color:var(--on-ink-2);font-size:14px;margin:14px 0 16px}
.footer-bottom{margin-top:56px;border-top:1px solid rgba(255,255,255,.12);padding:22px 0;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:var(--on-ink-2)}
.footer-bottom a{color:var(--on-ink-2)}
.footer-bottom a:hover{color:var(--lime)}
.to-top{display:inline-flex;align-items:center;gap:6px;color:var(--lime)}

/* ---------- responsive ---------- */
@media (max-width:1279px){
  .container{padding:0 32px}
  .hero-grid{gap:40px}
}
@media (max-width:1023px){
  .nav-channels,.nav-search,.btn-login{display:none}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center}
  .nav-tools{margin-left:auto}
  .hero{padding:56px 0 64px}
  .hero-grid{grid-template-columns:6fr 6fr;gap:32px}
  .hero-stage{height:auto;min-height:440px}
  .stage-card.main{width:250px;height:444px}
  .stage-card.back-1,.stage-card.back-2{width:250px;height:444px}
  .list-grid{grid-template-columns:1fr;gap:0}
  .news-grid{grid-template-columns:1fr}
  .cta-band{grid-template-columns:1fr;padding:40px 28px}
  .section{padding:64px 0}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  .container{padding:0 20px}
  .section{padding:48px 0}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .hero-sub{font-size:16px}
  .hero-stats{gap:24px}
  .hero-stage{min-height:auto;flex-direction:column;gap:18px}
  .stage-card{position:relative;transform:none!important;opacity:1!important}
  .stage-card.back-1,.stage-card.back-2{display:none}
  .stage-card.main{width:240px;height:426px}
  .clip-card{flex:0 0 200px}
  .rail-btn{display:none}
  .buy-bar{right:0;left:0;bottom:0;width:100%;border-radius:18px 18px 0 0;padding:10px 16px calc(10px + env(safe-area-inset-bottom))}
  .site-footer{padding-bottom:72px}
  .footer-grid{grid-template-columns:1fr}
  .post-mini .thumb{width:104px;height:80px}
  .cta-band{border-radius:18px}
}
@media (max-width:479px){
  body{font-size:15px}
  .hero h1{font-size:28px}
  .hero-stats b{font-size:19px}
  .stage-card.main{width:220px;height:390px}
  .clip-card{flex:0 0 82%}
  .voice-card{flex:0 0 84%}
  .post-feature .body{padding:18px}
  .post-feature h3{font-size:19px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;transform:none!important;scroll-behavior:auto!important}
}

/* roulang page: article */
:root{
  --ink:#10312D;
  --ink-2:#17403B;
  --brand:#12A87C;
  --brand-d:#0E8E69;
  --lime:#D8F94E;
  --coral:#FF6B4A;
  --bg:#F7F6F1;
  --bg-2:#EFEEE7;
  --card:#FFFFFF;
  --line:#E2E0D6;
  --text:#1B2624;
  --muted:#63716D;
  --on-ink:#F2F5F3;
  --on-ink-2:rgba(242,245,243,.66);
  --warn:#E0A429;
  --r-lg:20px;
  --r-md:16px;
  --r-sm:12px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(16,49,45,.06);
  --sh-2:0 6px 20px -8px rgba(16,49,45,.18);
  --sh-3:0 14px 32px -12px rgba(16,49,45,.28);
  --t:180ms cubic-bezier(.2,.7,.3,1);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"HarmonyOS Sans SC","PingFang SC","Source Han Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.8;
  letter-spacing:.01em;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
body.has-float{padding-bottom:92px;}
img{max-width:100%;display:block;height:auto;}
a{color:inherit;text-decoration:none;transition:color var(--t);}
a:hover{color:var(--brand);}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit;}
input{font:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;line-height:1.3;letter-spacing:-.01em;}
p{margin:0;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px;}
@media(min-width:768px){.container{padding:0 32px;}}

/* ---------- 阅读进度 ---------- */
.read-progress{position:fixed;top:0;left:0;height:3px;width:0;background:linear-gradient(90deg,var(--brand),var(--lime));z-index:120;transition:width 120ms linear;}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:100;
  background:rgba(247,246,241,.86);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
  transition:box-shadow var(--t);
}
.site-header.is-scrolled{box-shadow:var(--sh-2);}
.nav-bar{display:flex;align-items:center;gap:20px;height:72px;transition:height var(--t);}
.site-header.is-scrolled .nav-bar{height:60px;}
.logo{display:inline-flex;align-items:center;gap:9px;font-size:16px;font-weight:700;color:var(--ink);flex-shrink:0;}
.logo-mark{width:20px;height:20px;border-radius:6px;background:var(--ink);position:relative;display:inline-block;flex-shrink:0;}
.logo-mark::after{content:"";position:absolute;right:-3px;bottom:-3px;width:8px;height:8px;border-radius:50%;background:var(--lime);border:2px solid var(--bg);}
.logo-badge{font-size:11px;font-weight:600;letter-spacing:.02em;padding:2px 7px;border-radius:var(--r-pill);background:rgba(18,168,124,.12);color:var(--brand-d);}
.logo:hover{color:var(--ink);}
.nav-channels{display:none;align-items:center;gap:22px;font-size:14px;font-weight:500;}
.nav-channels a{position:relative;padding:6px 0;color:var(--text);}
.nav-channels a::after{content:"";position:absolute;left:0;right:0;bottom:0;height:2px;border-radius:2px;background:var(--brand);transform:scaleX(0);transform-origin:left;transition:transform var(--t);}
.nav-channels a:hover{color:var(--brand);}
.nav-channels a:hover::after,.nav-channels a.active::after{transform:scaleX(1);}
.nav-channels a.active{color:var(--brand);font-weight:600;}
.nav-tools{display:flex;align-items:center;gap:12px;margin-left:auto;}
.nav-search{display:none;align-items:center;gap:8px;height:40px;padding:0 14px;background:var(--card);border:1px solid var(--line);border-radius:var(--r-pill);transition:box-shadow var(--t),border-color var(--t);}
.nav-search i{color:var(--muted);font-size:13px;}
.nav-search input{width:160px;border:0;outline:none;background:transparent;font-size:13px;color:var(--text);}
.nav-search input::placeholder{color:var(--muted);}
.nav-search:focus-within{border-color:var(--brand);box-shadow:0 0 0 4px rgba(18,168,124,.14);}
.btn-login{display:none;align-items:center;height:40px;padding:0 18px;border:1.5px solid var(--ink);border-radius:var(--r-pill);font-size:14px;font-weight:600;color:var(--ink);transition:background var(--t),color var(--t),transform var(--t);}
.btn-login:hover{background:var(--bg-2);color:var(--ink);transform:translateY(-1px);}
.btn-start{display:inline-flex;align-items:center;gap:6px;height:40px;padding:0 16px;background:var(--lime);color:var(--ink);border-radius:var(--r-pill);font-size:14px;font-weight:700;transition:transform var(--t),box-shadow var(--t),background var(--t);}
.btn-start:hover{color:var(--ink);background:#e2ff62;transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-start:focus-visible{outline:2px solid var(--lime);outline-offset:3px;}
.nav-toggle{display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;border:1px solid var(--line);border-radius:12px;background:var(--card);color:var(--ink);font-size:16px;}
.nav-toggle:hover{border-color:var(--brand);color:var(--brand);}
@media(min-width:1024px){
  .nav-channels{display:flex;}
  .nav-search{display:flex;}
  .btn-login{display:inline-flex;}
  .nav-toggle{display:none;}
}
@media(max-width:1023px){
  .nav-channels{
    position:absolute;left:0;right:0;top:100%;
    display:none;flex-direction:column;align-items:stretch;gap:0;
    background:var(--card);border-bottom:1px solid var(--line);
    box-shadow:var(--sh-2);padding:8px 20px 16px;
  }
  .site-header.nav-open .nav-channels{display:flex;}
  .nav-channels a{padding:14px 0;border-bottom:1px dashed var(--line);font-size:15px;}
  .nav-channels a:last-child{border-bottom:0;}
  .nav-channels a::after{display:none;}
}

/* ---------- 面包屑 ---------- */
.crumb-bar{border-bottom:1px solid var(--line);background:var(--bg);}
.breadcrumb{display:flex;align-items:center;gap:8px;flex-wrap:wrap;font-size:14px;color:var(--muted);padding:14px 0;}
.breadcrumb a{color:var(--muted);}
.breadcrumb a:hover{color:var(--brand);}
.breadcrumb .sep{color:#B9B7AC;}
.breadcrumb .current{color:var(--ink);font-weight:600;max-width:60ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

/* ---------- 文章头 ---------- */
.article-head{position:relative;padding:40px 0 32px;overflow:hidden;}
.article-head::before{
  content:"";position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center;
  opacity:.10;pointer-events:none;
}
.article-head::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(247,246,241,.4),rgba(247,246,241,.92));
  pointer-events:none;
}
.article-head .container{position:relative;z-index:1;}
.article-head h1{font-size:clamp(24px,3.4vw,40px);font-weight:800;color:var(--ink);max-width:22ch;margin:14px 0 16px;}
@media(min-width:768px){.article-head h1{max-width:28ch;}}
.badge{display:inline-flex;align-items:center;gap:6px;height:24px;padding:0 10px;border-radius:var(--r-pill);font-size:12px;font-weight:600;letter-spacing:.02em;}
.badge-brand{background:rgba(18,168,124,.12);color:var(--brand-d);}
.badge-lime{background:var(--lime);color:var(--ink);}
.meta-row{display:flex;align-items:center;flex-wrap:wrap;gap:10px 18px;font-size:13px;color:var(--muted);font-variant-numeric:tabular-nums;}
.meta-row .dot{width:4px;height:4px;border-radius:50%;background:#C4C2B7;display:inline-block;}

/* ---------- 布局 ---------- */
.article-layout{display:grid;grid-template-columns:1fr;gap:32px;padding:40px 0 72px;}
@media(min-width:1024px){
  .article-layout{grid-template-columns:minmax(0,1fr) 320px;gap:44px;padding:52px 0 88px;}
}

/* ---------- 正文排版 ---------- */
.article-main{min-width:0;}
.article-body{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:28px 22px;box-shadow:var(--sh-1);
  font-size:16px;line-height:1.9;color:var(--text);
  overflow-wrap:break-word;
}
@media(min-width:768px){.article-body{padding:40px 44px;max-width:820px;}}
.article-body>*+*{margin-top:1.15em;}
.article-body h2{
  font-size:22px;font-weight:700;color:var(--ink);
  margin-top:40px;padding-left:14px;border-left:4px solid var(--brand);
}
.article-body h3{font-size:18px;font-weight:600;color:var(--ink);margin-top:28px;}
.article-body p{color:var(--text);}
.article-body a{color:var(--brand-d);font-weight:500;border-bottom:1px solid rgba(18,168,124,.35);}
.article-body a:hover{color:var(--brand);border-bottom-color:var(--brand);}
.article-body strong{font-weight:700;color:var(--ink);}
.article-body ul,.article-body ol{padding-left:0;}
.article-body ul li{position:relative;padding-left:22px;margin-top:8px;}
.article-body ul li::before{content:"";position:absolute;left:4px;top:.72em;width:8px;height:8px;border-radius:2px;background:var(--lime);border:1px solid rgba(16,49,45,.16);}
.article-body ol{counter-reset:li;}
.article-body ol li{position:relative;padding-left:30px;margin-top:10px;counter-increment:li;}
.article-body ol li::before{
  content:counter(li);position:absolute;left:0;top:.28em;
  width:20px;height:20px;border-radius:50%;border:1.5px solid var(--brand);
  color:var(--brand-d);font-size:12px;font-weight:700;line-height:17px;text-align:center;
}
.article-body blockquote{
  background:var(--bg-2);border-left:3px solid var(--brand);border-radius:var(--r-sm);
  padding:16px 20px;color:var(--ink-2);font-size:15px;
}
.article-body blockquote p{margin:0;}
.article-body img{border-radius:var(--r-md);margin:22px auto;box-shadow:var(--sh-1);}
.article-body figure{margin:22px 0;}
.article-body figcaption{font-size:13px;color:var(--muted);text-align:center;margin-top:10px;}
.article-body table{width:100%;border-collapse:collapse;font-size:14px;margin:20px 0;border:1px solid var(--line);border-radius:var(--r-sm);overflow:hidden;}
.article-body th{background:var(--bg-2);color:var(--ink);font-weight:600;text-align:left;}
.article-body th,.article-body td{padding:12px 14px;border-bottom:1px solid var(--line);}
.article-body tbody tr:nth-child(even){background:rgba(16,49,45,.03);}
.article-body code{background:var(--bg-2);border-radius:6px;padding:2px 6px;font-size:14px;}
.article-body hr{border:0;border-top:1px dashed var(--line);margin:32px 0;}

/* ---------- 空态 ---------- */
.empty-state{
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;
  min-height:200px;padding:36px 20px;text-align:center;
  background:var(--bg-2);border:1px dashed var(--line);border-radius:var(--r-md);
}
.empty-state i{font-size:26px;color:var(--muted);}
.empty-state p{color:var(--muted);font-size:15px;}
.empty-state a{color:var(--brand-d);font-weight:600;border-bottom:1px solid rgba(18,168,124,.4);}

/* ---------- 上下篇 ---------- */
.post-nav{display:grid;grid-template-columns:1fr;gap:16px;margin-top:28px;}
@media(min-width:640px){.post-nav{grid-template-columns:1fr 1fr;}}
.post-nav a{
  display:block;background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);
  padding:18px 20px;box-shadow:var(--sh-1);transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.post-nav a:hover{transform:translateY(-2px);box-shadow:var(--sh-3);border-color:rgba(18,168,124,.35);color:inherit;}
.post-nav .pn-label{display:flex;align-items:center;gap:8px;font-size:12px;color:var(--muted);letter-spacing:.02em;}
.post-nav .pn-title{margin-top:8px;font-size:16px;font-weight:600;color:var(--ink);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.post-nav .next{text-align:right;}
.post-nav .next .pn-label{justify-content:flex-end;}

/* ---------- 相关推荐 ---------- */
.related{margin-top:48px;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:20px;}
.section-head h2{font-size:20px;font-weight:700;color:var(--ink);display:flex;align-items:center;gap:10px;}
.section-head h2::before{content:"";width:4px;height:18px;border-radius:3px;background:var(--brand);}
.section-head .more{font-size:13px;color:var(--brand-d);font-weight:600;}
.card-grid{display:grid;grid-template-columns:1fr;gap:20px;}
@media(min-width:640px){.card-grid{grid-template-columns:repeat(2,1fr);}}
@media(min-width:1024px){.card-grid{grid-template-columns:repeat(3,1fr);}}
.card{
  display:flex;flex-direction:column;background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-md);overflow:hidden;box-shadow:var(--sh-1);
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.card:hover{transform:translateY(-2px);box-shadow:var(--sh-3);border-color:rgba(18,168,124,.3);color:inherit;}
.card .thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--bg-2);}
.card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform var(--t);}
.card:hover .thumb img{transform:scale(1.04);}
.card .body{padding:16px 18px 18px;display:flex;flex-direction:column;gap:10px;flex:1;}
.card .title{font-size:16px;font-weight:600;color:var(--ink);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.card .desc{font-size:14px;line-height:1.65;color:var(--muted);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.card .meta{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-top:auto;font-size:12px;color:var(--muted);font-variant-numeric:tabular-nums;}
.card .meta i{color:var(--brand);}

/* ---------- 侧栏 ---------- */
.article-side{display:flex;flex-direction:column;gap:20px;min-width:0;}
@media(min-width:1024px){.article-side{position:sticky;top:96px;align-self:start;}}
.side-card{background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);padding:20px;box-shadow:var(--sh-1);}
.side-card h3{font-size:15px;font-weight:700;color:var(--ink);display:flex;align-items:center;gap:8px;margin-bottom:14px;}
.side-card h3 i{color:var(--brand);font-size:13px;}
.toc-list{display:flex;flex-direction:column;gap:2px;max-height:320px;overflow:auto;}
.toc-list a{display:block;font-size:14px;color:var(--muted);padding:7px 10px;border-left:2px solid var(--line);border-radius:0 8px 8px 0;transition:all var(--t);}
.toc-list a:hover{color:var(--brand-d);background:rgba(18,168,124,.06);border-left-color:var(--brand);}
.toc-list a.lv3{padding-left:24px;font-size:13px;}
.toc-empty{font-size:13px;color:var(--muted);padding:6px 0;}
.entry-list{display:flex;flex-direction:column;gap:10px;}
.entry-list a{
  display:flex;align-items:center;gap:12px;padding:12px;
  border:1px solid var(--line);border-radius:var(--r-sm);background:var(--bg);
  font-size:14px;font-weight:500;color:var(--ink);transition:all var(--t);
}
.entry-list a:hover{border-color:var(--brand);background:rgba(18,168,124,.06);color:var(--brand-d);transform:translateY(-1px);}
.entry-list .ico{width:30px;height:30px;border-radius:9px;background:rgba(18,168,124,.12);color:var(--brand-d);display:flex;align-items:center;justify-content:center;font-size:13px;flex-shrink:0;}
.entry-list .arrow{margin-left:auto;color:var(--muted);font-size:12px;}
.side-cta{background:linear-gradient(160deg,var(--ink),var(--ink-2));border:1px solid rgba(255,255,255,.12);color:var(--on-ink);}
.side-cta h3{color:var(--on-ink);}
.side-cta h3 i{color:var(--lime);}
.side-cta p{font-size:13px;line-height:1.75;color:var(--on-ink-2);margin-bottom:14px;}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:44px;padding:0 22px;border-radius:var(--r-sm);font-size:15px;font-weight:600;transition:transform var(--t),background var(--t),box-shadow var(--t),color var(--t);}
.btn:active{transform:translateY(1px);}
.btn-lime{background:var(--lime);color:var(--ink);}
.btn-lime:hover{background:#e2ff62;color:var(--ink);transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-lime:focus-visible{outline:2px solid var(--lime);outline-offset:3px;}
.btn-coral{background:var(--coral);color:#fff;width:100%;}
.btn-coral:hover{background:#ff8163;color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-block{width:100%;}
.back-link{display:inline-flex;align-items:center;gap:6px;font-size:13px;color:var(--muted);}
.back-link:hover{color:var(--brand-d);}

/* ---------- 浮动入口条 ---------- */
.float-bar{
  position:fixed;left:0;right:0;bottom:0;z-index:90;
  background:var(--card);border-top:1px solid var(--line);
  box-shadow:0 -8px 24px -14px rgba(16,49,45,.35);
  padding:12px 20px calc(12px + env(safe-area-inset-bottom));
  display:flex;align-items:center;gap:14px;
  transform:translateY(120%);opacity:0;pointer-events:none;
  transition:transform 260ms cubic-bezier(.2,.7,.3,1),opacity 260ms;
}
.float-bar.show{transform:translateY(0);opacity:1;pointer-events:auto;}
.float-bar .fb-text{flex:1;min-width:0;}
.float-bar .fb-text strong{display:block;font-size:14px;color:var(--ink);}
.float-bar .fb-text span{display:block;font-size:12px;color:var(--muted);}
.float-bar .btn{height:42px;padding:0 18px;white-space:nowrap;}
@media(min-width:1024px){
  .float-bar{left:auto;right:24px;bottom:24px;width:340px;border-radius:var(--r-md);border:1px solid var(--line);padding:14px 16px;box-shadow:var(--sh-3);}
}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:var(--on-ink);margin-top:20px;padding:56px 0 24px;}
.footer-grid{display:grid;grid-template-columns:1fr;gap:32px;padding-bottom:36px;border-bottom:1px solid rgba(255,255,255,.12);}
@media(min-width:640px){.footer-grid{grid-template-columns:repeat(2,1fr);}}
@media(min-width:1024px){.footer-grid{grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;}}
.site-footer .logo{color:var(--on-ink);}
.site-footer .logo-mark{background:var(--on-ink);}
.site-footer .logo-mark::after{border-color:var(--ink);}
.site-footer .logo-badge{background:rgba(216,249,78,.16);color:var(--lime);}
.footer-brand p{font-size:14px;line-height:1.8;color:var(--on-ink-2);margin-top:14px;max-width:42ch;}
.footer-col h4{font-size:14px;font-weight:700;color:var(--on-ink);margin-bottom:14px;}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col a{font-size:14px;color:var(--on-ink-2);}
.footer-col a:hover{color:var(--lime);}
.footer-cta p{font-size:13px;color:var(--on-ink-2);margin-bottom:14px;line-height:1.75;}
.footer-bottom{display:flex;flex-wrap:wrap;align-items:center;gap:12px 20px;justify-content:space-between;padding-top:20px;font-size:13px;color:var(--on-ink-2);}
.footer-bottom .to-top{color:var(--on-ink);font-weight:600;}
.footer-bottom .to-top:hover{color:var(--lime);}

@media(prefers-reduced-motion:reduce){
  *{transition-duration:.01ms !important;animation-duration:.01ms !important;}
  a:hover,.card:hover,.btn:hover{transform:none !important;}
  .card:hover .thumb img{transform:none !important;}
}

/* roulang page: category1 */
:root{
  --ink:#10312D;
  --ink-2:#17403B;
  --brand:#12A87C;
  --brand-d:#0E8E69;
  --lime:#D8F94E;
  --coral:#FF6B4A;
  --bg:#F7F6F1;
  --bg-2:#EFEEE7;
  --card:#FFFFFF;
  --line:#E2E0D6;
  --text:#1B2624;
  --muted:#63716D;
  --on-ink:#F2F5F3;
  --on-ink-2:rgba(242,245,243,.66);
  --warn:#E0A429;
  --err:#D9534F;
  --r-lg:20px;
  --r-md:16px;
  --r-sm:12px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(16,49,45,.06);
  --sh-2:0 6px 20px -8px rgba(16,49,45,.18);
  --sh-3:0 14px 32px -12px rgba(16,49,45,.28);
  --t:180ms cubic-bezier(.2,.7,.3,1);
  --sec:80px;
  --font:"HarmonyOS Sans SC","PingFang SC","Source Han Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  letter-spacing:.01em;
  background:var(--bg);
  font-variant-numeric:tabular-nums;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button,input{font:inherit;color:inherit}
button{cursor:pointer;border:0;background:none}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;line-height:1.3;letter-spacing:-.01em}
p{margin:0}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}
::selection{background:var(--lime);color:var(--ink)}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media (min-width:768px){.container{padding:0 32px}}

/* ---------- 按钮 / 徽章 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--r-sm);
  font-size:15px;font-weight:600;letter-spacing:.01em;
  transition:transform var(--t),background-color var(--t),color var(--t),border-color var(--t),box-shadow var(--t);
  white-space:nowrap;
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:var(--sh-2)}
.btn-primary:hover{background:var(--brand-d);transform:translateY(-1px)}
.btn-primary:active{transform:translateY(1px)}
.btn-lime{background:var(--lime);color:var(--ink);box-shadow:var(--sh-1)}
.btn-lime:hover{transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-lime:active{transform:translateY(1px)}
.btn-ghost{background:transparent;color:var(--ink);border:1.5px solid var(--ink)}
.btn-ghost:hover{background:var(--bg-2)}
.btn-outline-light{background:transparent;color:var(--on-ink);border:1.5px solid rgba(255,255,255,.5)}
.btn-outline-light:hover{background:rgba(255,255,255,.12)}
.btn[disabled],.btn:disabled{opacity:.5;pointer-events:none}
.btn-block{width:100%}

.badge{
  display:inline-flex;align-items:center;gap:6px;
  height:24px;padding:0 10px;border-radius:var(--r-pill);
  font-size:12px;font-weight:600;letter-spacing:.02em;
}
.badge-brand{background:rgba(18,168,124,.12);color:var(--brand-d)}
.badge-lime{background:var(--lime);color:var(--ink)}
.badge-warn{background:rgba(224,164,41,.14);color:#9A6C0A}
.badge-muted{background:var(--bg-2);color:var(--muted)}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(247,246,241,.86);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
  transition:box-shadow var(--t),background-color var(--t);
}
.site-header.is-scrolled{box-shadow:var(--sh-2)}
.nav-bar{
  display:flex;align-items:center;gap:20px;
  height:72px;
  transition:height var(--t);
}
.site-header.is-scrolled .nav-bar{height:60px}
.logo{
  display:inline-flex;align-items:center;gap:8px;
  font-size:16px;font-weight:700;color:var(--ink);letter-spacing:-.01em;
  flex:0 0 auto;
}
.logo-mark{
  width:20px;height:20px;border-radius:6px;position:relative;
  background:var(--ink);
  box-shadow:inset 0 0 0 3px var(--ink);
}
.logo-mark::after{
  content:"";position:absolute;right:-4px;bottom:-2px;
  width:9px;height:9px;border-radius:3px;background:var(--lime);
  border:2px solid var(--bg);
}
.logo-badge{
  height:20px;padding:0 8px;border-radius:var(--r-pill);
  background:rgba(18,168,124,.12);color:var(--brand-d);
  font-size:11px;font-weight:600;display:inline-flex;align-items:center;
}
.nav-channels{display:flex;align-items:center;gap:4px;margin-left:8px}
.nav-channels a{
  position:relative;
  display:inline-flex;align-items:center;height:40px;padding:0 12px;
  font-size:14px;font-weight:500;color:var(--text);
  border-radius:8px;transition:color var(--t),background-color var(--t);
}
.nav-channels a:hover{color:var(--brand);background:rgba(18,168,124,.06)}
.nav-channels a.active{color:var(--brand);font-weight:600}
.nav-channels a.active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;
  background:var(--brand);border-radius:2px;
}
.drawer-search{display:none}
.nav-tools{display:flex;align-items:center;gap:12px;margin-left:auto}
.nav-search{
  display:flex;align-items:center;gap:8px;
  width:200px;height:38px;padding:0 14px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-pill);
  transition:border-color var(--t),box-shadow var(--t);
}
.nav-search i{color:var(--muted);font-size:13px}
.nav-search input{
  flex:1;min-width:0;border:0;outline:0;background:transparent;
  font-size:13px;color:var(--text);
}
.nav-search input::placeholder{color:var(--muted)}
.nav-search:focus-within{border-color:var(--brand);box-shadow:0 0 0 4px rgba(18,168,124,.14)}
.btn-login{
  display:inline-flex;align-items:center;height:38px;padding:0 18px;
  border:1.5px solid var(--ink);border-radius:var(--r-pill);
  font-size:14px;font-weight:600;color:var(--ink);
  transition:background-color var(--t),color var(--t);
}
.btn-login:hover{background:var(--ink);color:var(--on-ink)}
.btn-start{
  display:inline-flex;align-items:center;gap:6px;
  height:38px;padding:0 18px;border-radius:var(--r-pill);
  background:var(--lime);color:var(--ink);font-size:14px;font-weight:600;
  transition:transform var(--t),box-shadow var(--t);
}
.btn-start:hover{transform:translateY(-1px);box-shadow:var(--sh-2)}
.nav-toggle{
  display:none;width:40px;height:40px;border-radius:10px;
  border:1px solid var(--line);background:#fff;color:var(--ink);
  align-items:center;justify-content:center;
}

/* ---------- 面包屑 ---------- */
.crumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:14px;color:var(--muted);margin-bottom:18px;
}
.crumb a{color:var(--muted);transition:color var(--t)}
.crumb a:hover{color:var(--brand)}
.crumb .sep{opacity:.5}
.crumb .current{color:var(--ink);font-weight:600}

/* ---------- 深色页头 ---------- */
.page-hero{
  position:relative;overflow:hidden;
  background:var(--ink);color:var(--on-ink);
  padding:52px 0 56px;
}
.page-hero .hero-bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
  opacity:.34;
}
.page-hero .hero-veil{
  position:absolute;inset:0;
  background:linear-gradient(115deg,rgba(16,49,45,.94) 0%,rgba(16,49,45,.78) 55%,rgba(23,64,59,.7) 100%);
}
.page-hero .container{position:relative;z-index:2}
.page-hero .crumb,.page-hero .crumb a{color:var(--on-ink-2)}
.page-hero .crumb .current{color:var(--on-ink)}
.page-hero h1{
  font-size:clamp(28px,4.2vw,46px);
  font-weight:800;color:#fff;
  max-width:880px;
}
.page-hero h1 .hl{
  background:linear-gradient(transparent 62%,var(--lime) 62%);
  padding:0 4px;
  color:#fff;
}
.hero-sub{
  margin-top:18px;max-width:720px;
  font-size:16px;line-height:1.85;color:var(--on-ink-2);
}
.hero-stats{
  display:flex;flex-wrap:wrap;gap:32px;margin-top:30px;
}
.hero-stats div{display:flex;flex-direction:column;gap:2px}
.hero-stats strong{font-size:26px;font-weight:800;color:var(--lime);line-height:1.2}
.hero-stats span{font-size:13px;color:var(--on-ink-2)}
.hero-anchors{
  display:flex;flex-wrap:wrap;gap:10px;margin-top:32px;
}
.hero-anchors a{
  display:inline-flex;align-items:center;height:36px;padding:0 16px;
  border:1px solid rgba(255,255,255,.34);border-radius:var(--r-pill);
  font-size:14px;color:var(--on-ink);
  transition:background-color var(--t),color var(--t),border-color var(--t);
}
.hero-anchors a:hover{background:rgba(255,255,255,.12)}
.hero-anchors a.is-active{background:var(--lime);border-color:var(--lime);color:var(--ink);font-weight:600}

/* ---------- 主体两栏 ---------- */
.section{padding:var(--sec) 0}
.section-head{margin-bottom:32px;max-width:760px}
.section-head .eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;color:var(--brand-d);letter-spacing:.04em;
  margin-bottom:10px;
}
.section-head h2{
  font-size:clamp(22px,3vw,32px);font-weight:800;color:var(--ink);
  padding-left:14px;border-left:4px solid var(--brand);
}
.section-head p{margin-top:14px;color:var(--muted);font-size:15px;line-height:1.85}

.category-layout{
  display:grid;grid-template-columns:240px minmax(0,1fr);
  gap:40px;align-items:start;
}
.side-nav{
  position:sticky;top:96px;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);
  padding:18px 16px;box-shadow:var(--sh-1);
}
.side-nav h3{
  font-size:13px;font-weight:700;color:var(--muted);
  letter-spacing:.06em;margin-bottom:12px;
}
.side-nav ul{display:flex;flex-direction:column;gap:2px}
.side-nav a{
  display:flex;align-items:center;gap:10px;
  padding:9px 10px;border-radius:10px;
  font-size:14px;color:var(--text);
  transition:background-color var(--t),color var(--t);
}
.side-nav a::before{
  content:"";width:3px;height:14px;border-radius:2px;background:var(--line);
  transition:background-color var(--t),height var(--t);
}
.side-nav a:hover{background:var(--bg-2);color:var(--brand-d)}
.side-nav a:hover::before{background:var(--brand)}
.side-nav a.is-active{background:rgba(18,168,124,.08);color:var(--brand-d);font-weight:600}
.side-nav a.is-active::before{background:var(--brand);height:18px}
.side-note{
  margin-top:16px;padding:14px;border-radius:12px;background:var(--bg-2);
  font-size:13px;line-height:1.7;color:var(--muted);
}
.side-note strong{display:block;color:var(--ink);font-size:13px;margin-bottom:6px}

/* ---------- 卡片网格 ---------- */
.card-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);
  overflow:hidden;box-shadow:var(--sh-1);
  transition:transform var(--t),box-shadow var(--t);
}
.card:hover{transform:translateY(-2px);box-shadow:var(--sh-3)}
.card-link{display:block;height:100%}
.card-media{
  position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--bg-2);
}
.card-media img{
  width:100%;height:100%;object-fit:cover;
  transition:transform 320ms cubic-bezier(.2,.7,.3,1);
}
.card:hover .card-media img{transform:scale(1.04)}
.card-media .corner{
  position:absolute;right:10px;bottom:10px;
  background:rgba(16,49,45,.72);color:#fff;
  font-size:12px;font-weight:600;padding:3px 9px;border-radius:var(--r-pill);
  backdrop-filter:blur(4px);
}
.card-body{padding:18px 20px 20px}
.card-badges{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:12px}
.card-body h3{
  font-size:17px;font-weight:600;color:var(--ink);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-body p{
  margin-top:10px;font-size:14px;line-height:1.65;color:var(--muted);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-meta{
  display:flex;align-items:center;gap:8px;margin-top:16px;
  padding-top:14px;border-top:1px solid var(--line);
  font-size:13px;color:var(--muted);
}
.card-meta .arrow{margin-left:auto;color:var(--brand);transition:transform var(--t)}
.card:hover .card-meta .arrow{transform:translateX(3px)}

/* ---------- 检查清单 ---------- */
.checklist{background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);padding:8px 24px;box-shadow:var(--sh-1)}
.checklist li{
  display:grid;grid-template-columns:56px minmax(0,1fr) auto;
  gap:16px;align-items:center;padding:22px 0;
  border-bottom:1px dashed var(--line);
}
.checklist li:last-child{border-bottom:0}
.step-no{
  width:44px;height:44px;border-radius:50%;
  border:1.5px solid var(--brand);color:var(--brand-d);
  display:flex;align-items:center;justify-content:center;
  font-size:15px;font-weight:700;
}
.checklist h3{font-size:16px;font-weight:600;color:var(--ink)}
.checklist p{margin-top:6px;font-size:14px;line-height:1.7;color:var(--muted)}
.checklist .tag{white-space:nowrap}
@media (max-width:520px){
  .checklist li{grid-template-columns:44px minmax(0,1fr);gap:12px}
  .checklist .tag{grid-column:2}
}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:820px;margin:0 auto}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item:first-child{border-top:1px solid var(--line)}
.faq-q{
  width:100%;display:flex;align-items:center;gap:16px;
  padding:20px 0;text-align:left;
  font-size:16px;font-weight:600;color:var(--ink);
  transition:color var(--t);
}
.faq-q:hover{color:var(--brand-d)}
.faq-q .mark{
  margin-left:auto;flex:0 0 auto;
  width:28px;height:28px;border-radius:50%;
  border:1px solid var(--line);display:flex;align-items:center;justify-content:center;
  font-size:15px;color:var(--brand);background:#fff;
  transition:transform var(--t),background-color var(--t),color var(--t),border-color var(--t);
}
.faq-item.is-open .faq-q .mark{transform:rotate(45deg);background:var(--brand);color:#fff;border-color:var(--brand)}
.faq-a{display:none;padding:0 40px 18px 0;font-size:15px;line-height:1.75;color:var(--muted)}
.faq-item.is-open .faq-a{display:block}

/* ---------- 口碑条 ---------- */
.review-track{
  display:flex;gap:16px;overflow-x:auto;scroll-snap-type:x mandatory;
  padding:6px 4px 18px;
  -webkit-overflow-scrolling:touch;
  scrollbar-width:none;
}
.review-track::-webkit-scrollbar{display:none}
.review-card{
  flex:0 0 auto;width:320px;scroll-snap-align:start;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);
  padding:18px;box-shadow:var(--sh-1);
}
.review-top{display:flex;align-items:center;gap:12px}
.avatar{
  width:40px;height:40px;border-radius:50%;flex:0 0 auto;
  display:flex;align-items:center;justify-content:center;
  background:rgba(18,168,124,.14);color:var(--brand-d);
  font-weight:700;font-size:15px;
}
.review-top .name{font-size:14px;font-weight:600;color:var(--ink)}
.review-top .time{font-size:12px;color:var(--muted)}
.review-card p{margin-top:12px;font-size:14px;line-height:1.7;color:var(--muted)}
.review-stars{margin-top:12px;color:var(--coral);font-size:13px;letter-spacing:2px}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--r-lg);
  background:var(--ink);color:var(--on-ink);
  padding:44px 32px;
}
.cta-band .cta-bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-3.webp');
  background-size:cover;background-position:center;opacity:.22;
}
.cta-band .inner{position:relative;z-index:2;display:grid;grid-template-columns:minmax(0,1fr) auto;gap:28px;align-items:center}
.cta-band h2{font-size:clamp(20px,2.6vw,28px);font-weight:800;color:#fff}
.cta-band p{margin-top:10px;font-size:15px;color:var(--on-ink-2);max-width:640px}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:var(--on-ink);padding:64px 0 28px;margin-top:var(--sec)}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:36px}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.8;color:var(--on-ink-2);max-width:340px}
.site-footer .logo{color:var(--on-ink)}
.site-footer .logo-mark{background:var(--on-ink);box-shadow:inset 0 0 0 3px var(--on-ink)}
.site-footer .logo-mark::after{border-color:var(--ink)}
.site-footer .logo-badge{background:rgba(216,249,78,.16);color:var(--lime)}
.footer-col h4{font-size:14px;font-weight:700;color:#fff;margin-bottom:16px;letter-spacing:.02em}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a{font-size:14px;color:var(--on-ink-2);transition:color var(--t)}
.footer-col a:hover{color:var(--lime)}
.footer-cta p{font-size:14px;color:var(--on-ink-2);margin-bottom:16px;line-height:1.7}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:12px;align-items:center;
  margin-top:44px;padding-top:22px;
  border-top:1px solid rgba(255,255,255,.12);
  font-size:13px;color:var(--on-ink-2);
}
.footer-bottom .to-top{margin-left:auto;color:var(--on-ink-2);display:inline-flex;align-items:center;gap:6px;transition:color var(--t)}
.footer-bottom .to-top:hover{color:var(--lime)}

/* ---------- 移动端抽屉 ---------- */
.nav-mask{
  position:fixed;inset:0;background:rgba(16,49,45,.4);
  opacity:0;visibility:hidden;transition:opacity var(--t),visibility var(--t);z-index:70;
}
body.nav-open .nav-mask{opacity:1;visibility:visible}

@media (max-width:1023px){
  .nav-toggle{display:inline-flex}
  .nav-search{display:none}
  .btn-login{display:none}
  .nav-channels{
    position:fixed;top:0;right:0;z-index:80;
    width:84%;max-width:360px;height:100%;
    background:var(--bg);
    padding:20px 20px 96px;
    display:flex;flex-direction:column;align-items:stretch;gap:2px;
    transform:translateX(100%);
    transition:transform 240ms cubic-bezier(.2,.7,.3,1);
    box-shadow:var(--sh-3);overflow-y:auto;
  }
  body.nav-open .nav-channels{transform:translateX(0)}
  .nav-channels a{
    height:52px;padding:0 14px;border-radius:12px;
    justify-content:space-between;font-size:15px;
  }
  .nav-channels a::after{display:none}
  .nav-channels a.active::after{display:none}
  .nav-channels a::before{
    content:"\f105";font-family:"Font Awesome 6 Free";font-weight:900;
    order:2;color:var(--muted);font-size:13px;
  }
  .nav-channels a.active{background:rgba(18,168,124,.1);color:var(--brand-d)}
  .drawer-search{
    display:flex;align-items:center;gap:10px;
    height:44px;padding:0 14px;margin-bottom:14px;
    background:#fff;border:1px solid var(--line);border-radius:var(--r-pill);
  }
  .drawer-search i{color:var(--muted);font-size:13px}
  .drawer-search input{flex:1;min-width:0;border:0;outline:0;background:transparent;font-size:14px}
  .drawer-search:focus-within{border-color:var(--brand);box-shadow:0 0 0 4px rgba(18,168,124,.14)}
  .category-layout{grid-template-columns:1fr;gap:28px}
  .side-nav{position:static}
  .side-nav ul{flex-direction:row;overflow-x:auto;gap:8px;padding-bottom:4px;-webkit-overflow-scrolling:touch}
  .side-nav ul::-webkit-scrollbar{display:none}
  .side-nav a{white-space:nowrap;background:var(--bg-2);border-radius:var(--r-pill)}
  .side-nav a::before{display:none}
  .side-nav a.is-active{background:var(--lime);color:var(--ink)}
  .side-note{display:none}
  .section{padding:64px 0}
  .cta-band .inner{grid-template-columns:1fr}
}

@media (max-width:767px){
  .card-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .footer-brand{grid-column:1/-1}
  .footer-cta{grid-column:1/-1}
  .section{padding:48px 0}
  .hero-stats{gap:24px}
  .page-hero{padding:36px 0 44px}
  .cta-band{padding:32px 22px}
  .review-card{width:280px}
}

@media (max-width:519px){
  .logo-badge{display:none}
  .btn-start{padding:0 14px}
  .footer-grid{grid-template-columns:1fr}
  .checklist{padding:4px 16px}
}

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

/* roulang page: category2 */
:root{
  --ink:#10312D;
  --ink-2:#17403B;
  --brand:#12A87C;
  --brand-d:#0E8E69;
  --lime:#D8F94E;
  --coral:#FF6B4A;
  --bg:#F7F6F1;
  --bg-2:#EFEEE7;
  --card:#FFFFFF;
  --line:#E2E0D6;
  --text:#1B2624;
  --muted:#63716D;
  --on-ink:#F2F5F3;
  --on-ink-2:rgba(242,245,243,.66);
  --shadow-1:0 1px 2px rgba(16,49,45,.06);
  --shadow-2:0 6px 20px -8px rgba(16,49,45,.18);
  --shadow-3:0 14px 32px -12px rgba(16,49,45,.28);
  --r-lg:20px;
  --r-md:16px;
  --r-sm:12px;
  --ease:180ms 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:"HarmonyOS Sans SC","PingFang SC","Source Han Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.8;
  letter-spacing:.01em;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button,input,textarea{font:inherit;color:inherit}
ul,ol{padding:0;margin:0;list-style:none}
h1,h2,h3,h4{margin:0;line-height:1.3;letter-spacing:-.01em;color:var(--ink)}
h1{font-weight:800}
h2{font-weight:800}
h3,h4{font-weight:600}
p{margin:0}
::selection{background:var(--lime);color:var(--ink)}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:8px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
.skip-link{position:absolute;left:-9999px;top:0}
.skip-link:focus{left:12px;top:12px;background:#fff;padding:8px 14px;border-radius:var(--r-sm);z-index:200}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(247,246,241,.86);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
  transition:box-shadow var(--ease);
}
.site-header.is-scrolled{box-shadow:var(--shadow-2)}
.nav-bar{display:flex;align-items:center;gap:18px;height:72px;transition:height var(--ease)}
.site-header.is-scrolled .nav-bar{height:60px}
.logo{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:16px;
  font-weight:700;
  color:var(--ink);
  white-space:nowrap;
  letter-spacing:-.01em;
}
.logo-mark{
  position:relative;
  width:20px;
  height:20px;
  border-radius:6px;
  background:var(--ink);
  flex:0 0 20px;
}
.logo-mark::after{
  content:"";
  position:absolute;
  right:3px;
  bottom:3px;
  width:7px;
  height:7px;
  border-radius:50%;
  background:var(--lime);
}
.logo-badge{
  font-size:11px;
  font-weight:600;
  line-height:1;
  padding:4px 8px;
  border-radius:999px;
  background:rgba(18,168,124,.12);
  color:var(--brand-d);
}
.nav-channels{display:flex;align-items:center;gap:2px;margin-left:10px}
.nav-channels a{
  position:relative;
  font-size:14px;
  font-weight:500;
  color:var(--ink);
  padding:6px 10px;
  transition:color var(--ease);
}
.nav-channels a:hover{color:var(--brand)}
.nav-channels a.active{color:var(--brand-d)}
.nav-channels a.active::after{
  content:"";
  position:absolute;
  left:10px;
  right:10px;
  bottom:-2px;
  height:2px;
  border-radius:2px;
  background:var(--brand);
}
.nav-tools{display:flex;align-items:center;gap:10px;margin-left:auto}
.nav-search{
  display:flex;
  align-items:center;
  gap:8px;
  width:200px;
  height:40px;
  padding:0 14px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:999px;
  transition:border-color var(--ease),box-shadow var(--ease);
}
.nav-search i{font-size:13px;color:var(--muted)}
.nav-search input{
  flex:1;
  min-width:0;
  border:0;
  outline:none;
  background:transparent;
  font-size:13px;
}
.nav-search input::placeholder{color:var(--muted)}
.nav-search:focus-within{border-color:var(--brand);box-shadow:0 0 0 4px rgba(18,168,124,.14)}
.btn-login{
  display:inline-flex;
  align-items:center;
  height:40px;
  padding:0 16px;
  font-size:14px;
  font-weight:600;
  color:var(--ink);
  border:1.5px solid var(--ink);
  border-radius:999px;
  background:transparent;
  transition:background var(--ease),transform var(--ease);
}
.btn-login:hover{background:var(--bg-2)}
.btn-login:active{transform:translateY(1px)}
.btn-start{
  display:inline-flex;
  align-items:center;
  gap:6px;
  height:40px;
  padding:0 18px;
  font-size:14px;
  font-weight:600;
  color:var(--ink);
  background:var(--lime);
  border-radius:999px;
  transition:transform var(--ease),box-shadow var(--ease);
}
.btn-start:hover{transform:translateY(-1px);box-shadow:var(--shadow-2)}
.btn-start:active{transform:translateY(1px)}
.nav-toggle{
  display:none;
  align-items:center;
  justify-content:center;
  width:40px;
  height:40px;
  border:1px solid var(--line);
  border-radius:var(--r-sm);
  background:#fff;
  cursor:pointer;
  color:var(--ink);
}
.nav-scrim{
  position:fixed;
  inset:0;
  z-index:70;
  background:rgba(16,49,45,.4);
  opacity:0;
  pointer-events:none;
  transition:opacity var(--ease);
}
body.nav-open .nav-scrim{opacity:1;pointer-events:auto}

/* ---------- 通用组件 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:44px;
  padding:0 22px;
  border:0;
  border-radius:var(--r-sm);
  font-size:15px;
  font-weight:600;
  cursor:pointer;
  transition:background var(--ease),transform var(--ease),box-shadow var(--ease),color var(--ease);
}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--brand);color:#fff}
.btn-primary:hover{background:var(--brand-d);transform:translateY(-1px);box-shadow:var(--shadow-2)}
.btn-lime{background:var(--lime);color:var(--ink)}
.btn-lime:hover{transform:translateY(-1px);box-shadow:var(--shadow-2)}
.btn-outline{background:transparent;color:var(--ink);border:1.5px solid var(--ink)}
.btn-outline:hover{background:var(--bg-2)}
.btn-pill{
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:42px;
  padding:0 18px;
  font-size:14px;
  font-weight:600;
  color:var(--ink);
  background:#fff;
  border:1px solid var(--line);
  border-radius:999px;
  box-shadow:var(--shadow-1);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease),color var(--ease);
  white-space:nowrap;
}
.btn-pill:hover{border-color:var(--brand);color:var(--brand-d);transform:translateY(-1px);box-shadow:var(--shadow-2)}
.btn-outline:hover{background:var(--bg-2)}
.badge{
  display:inline-flex;
  align-items:center;
  height:24px;
  padding:0 10px;
  font-size:12px;
  font-weight:600;
  border-radius:999px;
  background:rgba(18,168,124,.1);
  color:var(--brand-d);
}
.badge-lime{background:var(--lime);color:var(--ink)}
.badge-coral{background:rgba(255,107,74,.12);color:#D9482A}
.badge-warn{background:rgba(224,164,41,.14);color:#9A6C0B}
.tag{
  display:inline-flex;
  align-items:center;
  height:26px;
  padding:0 12px;
  font-size:12px;
  font-weight:600;
  border-radius:999px;
  background:var(--bg-2);
  color:var(--muted);
  border:1px solid var(--line);
  white-space:nowrap;
}
.tag-brand{background:rgba(18,168,124,.1);color:var(--brand-d);border-color:rgba(18,168,124,.24)}
.tag-coral{background:rgba(255,107,74,.1);color:#D9482A;border-color:rgba(255,107,74,.24)}
.tag-lime{background:rgba(216,249,78,.42);color:#40480A;border-color:rgba(216,249,78,.9)}
.section{padding:72px 0}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  margin-bottom:28px;
}
.section-head h2{font-size:28px;position:relative;padding-left:14px}
.section-head h2::before{
  content:"";
  position:absolute;
  left:0;
  top:6px;
  bottom:6px;
  width:4px;
  border-radius:4px;
  background:var(--brand);
}
.section-head p{color:var(--muted);font-size:15px;margin-top:10px;max-width:64ch}
.link-more{font-size:14px;font-weight:600;color:var(--brand-d);display:inline-flex;align-items:center;gap:6px;transition:color var(--ease),gap var(--ease)}
.link-more:hover{color:var(--ink);gap:10px}

/* ---------- 浅色页头 ---------- */
.page-hero{
  background:var(--card);
  border-bottom:1px solid var(--line);
  padding:44px 0 40px;
}
.page-hero-inner{display:flex;gap:22px;align-items:stretch}
.accent-bar{
  flex:0 0 4px;
  width:4px;
  border-radius:4px;
  background:var(--lime);
}
.page-hero-main{flex:1;min-width:0}
.breadcrumb{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:14px;
  color:var(--muted);
}
.breadcrumb i{font-size:10px;opacity:.7}
.breadcrumb .current{color:var(--ink);font-weight:600}
.page-hero h1{
  font-size:clamp(26px,4.4vw,40px);
  margin:14px 0 12px;
  max-width:26ch;
}
.page-hero .lede{
  color:var(--muted);
  font-size:16px;
  line-height:1.85;
  max-width:70ch;
}
.page-hero-actions{display:flex;align-items:center;gap:12px;margin-top:22px;flex-wrap:wrap}
.page-hero-aside{
  flex:0 0 auto;
  display:flex;
  align-items:flex-start;
}

/* ---------- 速览数据 ---------- */
.stats{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:16px;
}
.stat{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:20px 22px;
  box-shadow:var(--shadow-1);
  transition:transform var(--ease),box-shadow var(--ease);
}
.stat:hover{transform:translateY(-2px);box-shadow:var(--shadow-2)}
.stat-num{
  font-size:30px;
  font-weight:800;
  color:var(--ink);
  font-variant-numeric:tabular-nums;
  line-height:1.2;
  letter-spacing:-.02em;
}
.stat-num small{font-size:14px;font-weight:600;color:var(--brand-d);margin-left:4px}
.stat-label{font-size:14px;color:var(--muted);margin-top:6px}

/* ---------- 清单 ---------- */
.list-block{max-width:880px;margin:0 auto}
.checklist{border-top:1px solid var(--line)}
.checklist li{
  display:grid;
  grid-template-columns:64px minmax(0,1fr) auto;
  gap:18px;
  align-items:start;
  padding:24px 0;
  border-bottom:1px solid var(--line);
  transition:background var(--ease);
}
.checklist li:hover{background:rgba(255,255,255,.7)}
.num{
  font-size:26px;
  font-weight:800;
  line-height:1;
  color:var(--ink);
  font-variant-numeric:tabular-nums;
  border-bottom:3px solid var(--lime);
  padding-bottom:6px;
  display:inline-block;
  width:fit-content;
}
.item-body h3{font-size:18px;margin-bottom:6px}
.item-body p{color:var(--muted);font-size:15px;line-height:1.75;max-width:60ch}
.item-body .meta{font-size:13px;color:var(--muted);margin-top:8px}
.item-body .meta span{margin-right:14px}
.item-body .meta i{color:var(--brand);margin-right:6px;font-size:12px}

/* ---------- 功能卡 ---------- */
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.card{
  display:flex;
  flex-direction:column;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  overflow:hidden;
  box-shadow:var(--shadow-1);
  transition:transform var(--ease),box-shadow var(--ease);
}
.card:hover{transform:translateY(-2px);box-shadow:var(--shadow-3)}
.card-media{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--bg-2)}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform 260ms cubic-bezier(.2,.7,.3,1)}
.card:hover .card-media img{transform:scale(1.04)}
.card-body{padding:20px 20px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.card-body h3{font-size:17px}
.card-body p{color:var(--muted);font-size:14px;line-height:1.7}
.card-foot{
  margin-top:auto;
  padding-top:14px;
  border-top:1px solid var(--line);
  display:flex;
  align-items:center;
  justify-content:space-between;
  font-size:13px;
  color:var(--muted);
}
.card-foot i{color:var(--brand);font-size:12px}

/* ---------- 深色提示条 ---------- */
.strip{
  position:relative;
  border-radius:var(--r-lg);
  overflow:hidden;
  padding:52px 44px;
  color:var(--on-ink);
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;
  background-position:center;
}
.strip::before{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(95deg,rgba(16,49,45,.94) 0%,rgba(16,49,45,.74) 52%,rgba(16,49,45,.46) 100%);
}
.strip-inner{position:relative;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap}
.strip h2{color:#fff;font-size:26px;max-width:22ch}
.strip p{color:var(--on-ink-2);font-size:15px;margin-top:12px;max-width:56ch}
.strip-actions{display:flex;gap:12px;flex-wrap:wrap}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:820px;margin:0 auto}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item summary{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:20px 0;
  font-size:16px;
  font-weight:600;
  color:var(--ink);
  cursor:pointer;
  list-style:none;
  transition:color var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--brand-d)}
.faq-plus{
  position:relative;
  flex:0 0 26px;
  width:26px;
  height:26px;
  border-radius:50%;
  border:1px solid var(--line);
  background:#fff;
  transition:transform var(--ease),background var(--ease),border-color var(--ease);
}
.faq-plus::before,.faq-plus::after{
  content:"";
  position:absolute;
  left:50%;
  top:50%;
  background:var(--ink);
  border-radius:2px;
  transform:translate(-50%,-50%);
}
.faq-plus::before{width:12px;height:2px}
.faq-plus::after{width:2px;height:12px;transition:background var(--ease)}
.faq-item[open] .faq-plus{transform:rotate(45deg);border-color:var(--brand);background:rgba(18,168,124,.08)}
.faq-item[open] .faq-plus::before,
.faq-item[open] .faq-plus::after{background:var(--brand-d)}
.faq-answer{
  padding:0 44px 20px 0;
  color:var(--muted);
  font-size:15px;
  line-height:1.85;
}

/* ---------- 表单 ---------- */
.form-section{background:var(--bg-2);border-top:1px solid var(--line)}
.form-card{
  max-width:760px;
  margin:0 auto;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:32px;
  box-shadow:var(--shadow-2);
}
.form-card h2{font-size:22px}
.form-card .form-intro{color:var(--muted);font-size:15px;margin-top:10px}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:24px}
.field{display:flex;flex-direction:column}
.field.full{grid-column:1 / -1}
.field label{font-size:14px;font-weight:600;color:var(--ink);margin-bottom:8px}
.field input,.field textarea{
  width:100%;
  border:1px solid var(--line);
  border-radius:var(--r-sm);
  background:#fff;
  font-size:15px;
  transition:border-color var(--ease),box-shadow var(--ease);
}
.field input{height:46px;padding:0 14px}
.field textarea{min-height:120px;padding:12px 14px;line-height:1.75;resize:vertical}
.field input:focus,.field textarea:focus{
  outline:none;
  border-color:var(--brand);
  box-shadow:0 0 0 4px rgba(18,168,124,.14);
}
.field .hint{font-size:13px;color:var(--muted);margin-top:8px}
.form-actions{display:flex;align-items:center;gap:16px;margin-top:24px;flex-wrap:wrap}
.form-note{font-size:13px;color:var(--muted)}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--ink);
  color:var(--on-ink);
  padding:56px 0 0;
  margin-top:80px;
}
.footer-grid{display:grid;grid-template-columns:1.9fr 1fr 1fr 1.3fr;gap:32px}
.site-footer .logo{color:#fff}
.site-footer .logo-mark{background:#fff}
.site-footer .logo-mark::after{background:var(--lime)}
.site-footer .logo-badge{background:rgba(216,249,78,.18);color:var(--lime)}
.footer-brand p{color:var(--on-ink-2);font-size:14px;line-height:1.85;margin-top:14px;max-width:36ch}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:14px}
.footer-col ul{display:grid;gap:10px}
.footer-col a{color:var(--on-ink-2);font-size:14px;transition:color var(--ease)}
.footer-col a:hover{color:var(--lime)}
.footer-cta p{color:var(--on-ink-2);font-size:14px;margin-bottom:16px}
.footer-bottom{
  margin-top:44px;
  padding:18px 0;
  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:var(--on-ink-2);
}
.to-top{display:inline-flex;align-items:center;gap:6px;color:var(--on-ink-2);transition:color var(--ease)}
.to-top:hover{color:var(--lime)}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .strip{padding:46px 36px}
}
@media (max-width:1023px){
  .container{padding:0 24px}
  .nav-search,.btn-login{display:none}
  .nav-toggle{display:inline-flex}
  .nav-channels{
    position:fixed;
    top:0;
    right:0;
    z-index:80;
    width:84%;
    max-width:360px;
    height:100%;
    margin:0;
    padding:88px 20px 96px;
    flex-direction:column;
    align-items:stretch;
    gap:0;
    background:var(--bg);
    box-shadow:var(--shadow-3);
    transform:translateX(102%);
    transition:transform 260ms cubic-bezier(.2,.7,.3,1);
    overflow-y:auto;
  }
  body.nav-open .nav-channels{transform:translateX(0)}
  .nav-channels a{
    display:flex;
    align-items:center;
    justify-content:space-between;
    height:52px;
    padding:0 14px;
    font-size:15px;
    border-bottom:1px solid var(--line);
    border-radius:0;
  }
  .nav-channels a::after{
    content:"\203A";
    position:static;
    font-size:20px;
    line-height:1;
    color:var(--muted);
    height:auto;
    background:none;
    border-radius:0;
  }
  .nav-channels a.active{
    background:var(--bg-2);
    box-shadow:inset 3px 0 0 var(--brand);
  }
  .nav-channels a.active::after{color:var(--brand)}
  .stats{grid-template-columns:repeat(2,1fr)}
  .cards{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
  .section{padding:60px 0}
  .section-head h2{font-size:24px}
  .checklist li{grid-template-columns:56px minmax(0,1fr) auto;gap:14px}
}
@media (max-width:767px){
  .container{padding:0 20px}
  .section{padding:48px 0}
  .page-hero{padding:32px 0 30px}
  .page-hero-inner{gap:16px}
  .page-hero-aside{display:none}
  .section-head{flex-direction:column;align-items:flex-start;gap:14px}
  .strip{padding:36px 24px;border-radius:var(--r-md)}
  .strip h2{font-size:22px}
  .form-card{padding:24px}
  .form-grid{grid-template-columns:1fr}
  .faq-answer{padding-right:0}
  .btn{height:48px}
}
@media (max-width:519px){
  body{font-size:15px}
  .stats{grid-template-columns:repeat(2,1fr);gap:12px}
  .stat{padding:16px 16px}
  .stat-num{font-size:24px}
  .cards{grid-template-columns:1fr}
  .checklist li{grid-template-columns:44px minmax(0,1fr);gap:12px}
  .checklist li .tag{grid-column:2;justify-self:start;margin-top:4px}
  .num{font-size:22px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .page-hero h1{max-width:none}
  .btn-pill{height:40px;font-size:13px}
}
@media (prefers-reduced-motion:reduce){
  *{transition-duration:.01ms !important;animation-duration:.01ms !important}
  .card:hover,.stat:hover,.btn:hover,.btn-pill:hover,.btn-start:hover{transform:none}
  .card:hover .card-media img{transform:none}
  html{scroll-behavior:auto}
}