/* roulang page: index */
:root{
  --ink:#14554A;
  --ink-deep:#0B2B25;
  --ink-soft:#1D6E60;
  --coral:#FF6B4A;
  --coral-dark:#EE5233;
  --lime:#C8F169;
  --bg:#F7F5EF;
  --card:#FFFFFF;
  --soft:#EEF3EE;
  --line:#E3E0D6;
  --text:#1A2320;
  --muted:#5D6B65;
  --radius-card:16px;
  --radius-img:14px;
  --radius-pill:999px;
  --shadow-sm:0 8px 24px rgba(11,43,37,.08);
  --shadow-md:0 16px 36px rgba(11,43,37,.14);
  --ease:200ms ease-out;
  --container:1200px;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--bg);
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--ink);text-decoration:none;transition:color var(--ease),background-color var(--ease),border-color var(--ease);}
h1,h2,h3,h4,p,figure{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;font-size:inherit;color:inherit;border:0;background:none;cursor:pointer;}
a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid var(--lime);outline-offset:2px;}
::selection{background:var(--lime);color:var(--ink-deep);}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
.section{padding:96px 0;position:relative;}
.section--tight{padding:64px 0;}
.section--soft{background:var(--soft);}

h1{font-size:40px;line-height:1.2;font-weight:800;letter-spacing:-.01em;}
h2{font-size:28px;line-height:1.3;font-weight:700;letter-spacing:-.005em;}
h3{font-size:20px;line-height:1.45;font-weight:600;}
.lead{font-size:16px;color:var(--muted);line-height:1.9;}
.section-head{max-width:760px;margin-bottom:48px;}
.section-head .eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;letter-spacing:.02em;color:var(--ink);background:rgba(20,85,74,.08);border-radius:var(--radius-pill);padding:6px 14px;margin-bottom:16px;}
.section-head h2{margin-bottom:12px;}
.section-head p{color:var(--muted);font-size:15px;}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:48px;padding:0 26px;border-radius:var(--radius-pill);font-size:15px;font-weight:600;letter-spacing:.01em;transition:transform var(--ease),background-color var(--ease),color var(--ease),box-shadow var(--ease),border-color var(--ease);white-space:nowrap;}
.btn--primary{background:var(--coral);color:#fff;box-shadow:0 10px 24px rgba(255,107,74,.28);}
.btn--primary:hover{background:var(--coral-dark);transform:translateY(-1px);box-shadow:0 14px 28px rgba(255,107,74,.34);}
.btn--primary:active{transform:translateY(0);}
.btn--ghost{background:transparent;color:var(--ink);border:1.5px solid var(--ink);}
.btn--ghost:hover{background:var(--soft);transform:translateY(-1px);}
.btn--ghost:active{transform:translateY(0);}
.btn--light{background:#fff;color:var(--ink-deep);}
.btn--light:hover{background:var(--lime);color:var(--ink-deep);transform:translateY(-1px);}
.btn--outline-light{background:transparent;color:#F7F5EF;border:1.5px solid rgba(247,245,239,.5);}
.btn--outline-light:hover{background:rgba(247,245,239,.12);border-color:#F7F5EF;transform:translateY(-1px);}
.btn--sm{min-height:40px;padding:0 18px;font-size:14px;}
.btn--block{width:100%;}

.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--ink);}
.link-arrow span{transition:transform var(--ease);}
.link-arrow:hover span{transform:translateX(3px);}

/* ---------- badges ---------- */
.badge{display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:600;letter-spacing:.02em;padding:5px 12px;border-radius:var(--radius-pill);line-height:1.4;}
.badge--coral{background:rgba(255,107,74,.14);color:#C23B1D;}
.badge--ink{background:rgba(20,85,74,.1);color:var(--ink);}
.badge--lime{background:rgba(200,241,105,.42);color:#3B5B12;}
.badge--soft{background:var(--soft);color:var(--ink);border:1px solid var(--line);}

/* ---------- topbar ---------- */
.topbar{background:var(--ink-deep);color:#F7F5EF;font-size:13px;}
.topbar__inner{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:38px;padding-top:6px;padding-bottom:6px;}
.topbar__left{display:flex;align-items:center;gap:14px;min-width:0;}
.topbar__domain{font-weight:600;letter-spacing:.04em;opacity:.92;}
.topbar__note{color:rgba(247,245,239,.68);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.topbar__cta{display:inline-flex;align-items:center;gap:6px;padding:4px 14px;border-radius:var(--radius-pill);background:rgba(247,245,239,.12);color:#F7F5EF;font-size:12px;font-weight:600;white-space:nowrap;transition:background-color var(--ease),color var(--ease);}
.topbar__cta:hover{background:var(--lime);color:var(--ink-deep);}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:80;background:rgba(247,245,239,.94);backdrop-filter:blur(10px);border-bottom:1px solid var(--line);transition:box-shadow var(--ease),border-color var(--ease);}
.site-header.is-stuck{box-shadow:0 8px 24px rgba(11,43,37,.1);border-bottom-color:rgba(227,224,214,.9);}
.site-header__inner{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:70px;}
.brand{display:inline-flex;align-items:center;gap:12px;}
.brand__mark{width:42px;height:42px;border-radius:12px;background:var(--ink);color:var(--lime);display:flex;align-items:center;justify-content:center;font-size:19px;font-weight:800;flex:0 0 auto;box-shadow:inset 0 0 0 1px rgba(200,241,105,.28);}
.brand__text{display:flex;flex-direction:column;line-height:1.25;}
.brand__text strong{font-size:16px;font-weight:800;color:var(--ink-deep);letter-spacing:.01em;}
.brand__text em{font-style:normal;font-size:11px;color:var(--muted);letter-spacing:.14em;}
.main-nav{display:flex;align-items:center;gap:4px;}
.nav-link{display:inline-flex;align-items:center;min-height:40px;padding:0 14px;border-radius:var(--radius-pill);font-size:14.5px;font-weight:500;color:var(--text);position:relative;transition:color var(--ease),background-color var(--ease);}
.nav-link::after{content:"";position:absolute;left:14px;right:14px;bottom:6px;height:2px;background:var(--ink);border-radius:2px;transform:scaleX(0);transform-origin:left;transition:transform var(--ease);}
.nav-link:hover{color:var(--ink);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{background:rgba(20,85,74,.1);color:var(--ink);font-weight:700;}
.nav-link.is-active::after{transform:scaleX(0);}
.header-actions{display:flex;align-items:center;gap:12px;}
.nav-toggle{display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);background:#fff;color:var(--ink);align-items:center;justify-content:center;font-size:18px;}
.nav-toggle:hover{background:var(--soft);}
.drawer-mask{position:fixed;inset:0;background:rgba(11,43,37,.42);opacity:0;visibility:hidden;transition:opacity var(--ease),visibility var(--ease);z-index:70;}
body.drawer-open .drawer-mask{opacity:1;visibility:visible;}

/* ---------- hero ---------- */
.hero{position:relative;overflow:hidden;background:var(--ink-deep);}
.hero__bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:center;}
.hero__overlay{position:absolute;inset:0;background:linear-gradient(100deg,rgba(11,43,37,.94) 0%,rgba(11,43,37,.82) 42%,rgba(11,43,37,.42) 100%);}
.hero__grid{position:absolute;inset:0;background-image:linear-gradient(rgba(247,245,239,.07) 1px,transparent 1px),linear-gradient(90deg,rgba(247,245,239,.07) 1px,transparent 1px);background-size:64px 64px;opacity:.55;pointer-events:none;}
.hero__inner{position:relative;z-index:2;display:flex;align-items:center;gap:48px;min-height:580px;padding-top:72px;padding-bottom:72px;}
.hero__copy{flex:1 1 620px;max-width:620px;}
.hero__eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--lime);background:rgba(200,241,105,.14);border:1px solid rgba(200,241,105,.32);border-radius:var(--radius-pill);padding:6px 16px;margin-bottom:22px;}
.hero h1{color:#F7F5EF;max-width:620px;}
.hero__sub{margin-top:20px;font-size:17px;line-height:1.8;color:rgba(247,245,239,.82);max-width:540px;}
.hero__actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px;}
.hero__points{display:flex;flex-wrap:wrap;gap:10px;margin-top:32px;}
.hero__point{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:500;color:#F7F5EF;padding:8px 16px;border-radius:var(--radius-pill);border:1px solid rgba(247,245,239,.32);background:rgba(247,245,239,.06);}
.hero__point i{color:var(--lime);font-size:12px;}
.hero__aside{flex:0 0 320px;display:flex;justify-content:flex-end;align-self:flex-end;}
.status-card{width:100%;max-width:320px;background:#fff;border-radius:var(--radius-card);padding:22px;box-shadow:var(--shadow-md);}
.status-card__head{display:flex;align-items:center;gap:8px;font-size:12px;font-weight:600;color:var(--muted);letter-spacing:.04em;}
.status-card__dot{width:8px;height:8px;border-radius:50%;background:var(--ink);box-shadow:0 0 0 4px rgba(20,85,74,.14);}
.status-card__title{margin-top:10px;font-size:20px;font-weight:700;color:var(--ink-deep);}
.status-card__desc{margin-top:4px;font-size:13px;color:var(--muted);line-height:1.7;}
.status-card__bar{margin-top:16px;height:8px;border-radius:var(--radius-pill);background:var(--line);overflow:hidden;}
.status-card__bar span{display:block;height:100%;border-radius:var(--radius-pill);background:linear-gradient(90deg,var(--ink) 0%,var(--lime) 100%);}
.status-card__foot{display:flex;align-items:center;justify-content:space-between;margin-top:10px;font-size:13px;color:var(--muted);}
.status-card__foot strong{font-size:18px;font-weight:800;color:var(--ink-deep);}

/* ---------- highlights ---------- */
.highlights{background:#fff;border-bottom:1px solid var(--line);}
.highlight{display:flex;gap:16px;padding:22px 0;}
.highlight__num{flex:0 0 auto;font-size:30px;font-weight:800;line-height:1;color:rgba(20,85,74,.18);letter-spacing:-.02em;}
.highlight h3{font-size:16px;font-weight:700;color:var(--ink-deep);margin-bottom:6px;}
.highlight p{font-size:14px;color:var(--muted);line-height:1.8;}

/* ---------- steps (玩法) ---------- */
.flow{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;position:relative;}
.flow::before{content:"";position:absolute;top:44px;left:6%;right:6%;border-top:2px dashed rgba(20,85,74,.2);z-index:0;}
.flow-card{position:relative;z-index:1;background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);padding:28px 22px 24px;box-shadow:var(--shadow-sm);transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease);}
.flow-card:hover{transform:translateY(-4px);border-color:var(--ink);box-shadow:var(--shadow-md);}
.flow-card__num{font-size:34px;font-weight:800;line-height:1;color:rgba(20,85,74,.2);letter-spacing:-.03em;}
.flow-card h3{margin-top:14px;font-size:17px;font-weight:700;color:var(--ink-deep);}
.flow-card p{margin-top:10px;font-size:14px;color:var(--muted);line-height:1.8;}
.flow-card__tag{display:inline-block;margin-top:16px;font-size:12px;font-weight:600;color:var(--ink);background:var(--soft);border-radius:var(--radius-pill);padding:4px 12px;}

/* ---------- rewards ---------- */
.reward-grid{display:grid;grid-template-columns:1.15fr 1fr 1fr;grid-auto-rows:minmax(0,auto);gap:24px;}
.reward-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-sm);display:flex;flex-direction:column;transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);}
.reward-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:rgba(20,85,74,.32);}
.reward-card__media{position:relative;overflow:hidden;aspect-ratio:16/10;background:var(--soft);}
.reward-card__media img{width:100%;height:100%;object-fit:cover;transition:transform 420ms ease-out;}
.reward-card:hover .reward-card__media img{transform:scale(1.03);}
.reward-card__media .badge{position:absolute;left:14px;top:14px;background:rgba(255,255,255,.94);color:var(--ink);box-shadow:0 4px 12px rgba(11,43,37,.12);}
.reward-card__body{padding:22px;display:flex;flex-direction:column;gap:10px;flex:1;}
.reward-card__body h3{font-size:18px;font-weight:700;color:var(--ink-deep);}
.reward-card__body p{font-size:14px;color:var(--muted);line-height:1.8;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.reward-card__body .link-arrow{margin-top:auto;padding-top:6px;}
.reward-card--feature{grid-row:span 2;}
.reward-card--feature .reward-card__media{aspect-ratio:16/11;}
.reward-card--feature .reward-card__body h3{font-size:22px;}
.reward-card--feature .reward-card__body p{-webkit-line-clamp:3;font-size:15px;}

/* ---------- progress ---------- */
.progress-panel{background:#fff;border:1px solid var(--line);border-radius:20px;padding:40px;box-shadow:var(--shadow-sm);display:grid;grid-template-columns:1.6fr .8fr;gap:48px;align-items:center;}
.progress-steps{display:flex;gap:12px;flex-wrap:wrap;}
.progress-step{display:flex;align-items:center;gap:10px;font-size:14px;font-weight:600;color:var(--muted);}
.progress-step__dot{width:12px;height:12px;border-radius:50%;background:var(--line);position:relative;flex:0 0 auto;}
.progress-step.is-done{color:var(--ink-deep);}
.progress-step.is-done .progress-step__dot{background:var(--lime);box-shadow:0 0 0 4px rgba(200,241,105,.32);}
.progress-step.is-done .progress-step__dot::after{content:"";position:absolute;left:3.5px;top:3px;width:5px;height:2.5px;border-left:1.5px solid var(--ink-deep);border-bottom:1.5px solid var(--ink-deep);transform:rotate(-45deg);}
.progress-sep{color:var(--line);font-size:14px;}
.progress-bar{margin-top:26px;height:8px;border-radius:var(--radius-pill);background:var(--line);overflow:hidden;}
.progress-bar__fill{display:block;height:100%;width:0;border-radius:var(--radius-pill);background:linear-gradient(90deg,var(--ink) 0%,var(--lime) 100%);transition:width 800ms ease-out;}
.progress-note{margin-top:16px;font-size:14px;color:var(--muted);}
.progress-figure{text-align:center;border-left:1px dashed var(--line);padding-left:32px;}
.progress-figure strong{display:block;font-size:56px;line-height:1;font-weight:800;color:var(--ink-deep);letter-spacing:-.02em;}
.progress-figure span{display:block;margin-top:8px;font-size:13px;color:var(--muted);}

/* ---------- news ---------- */
.news-list{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.news-card{position:relative;display:flex;background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-sm);transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);}
.news-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:rgba(20,85,74,.3);}
.news-card__bar{width:5px;flex:0 0 5px;background:linear-gradient(180deg,var(--ink) 0%,var(--lime) 100%);}
.news-card__body{padding:24px;display:flex;flex-direction:column;gap:10px;flex:1;min-width:0;}
.news-card__meta{display:flex;align-items:center;gap:10px;flex-wrap:wrap;}
.news-card__date{font-size:13px;color:var(--muted);}
.news-card__title{font-size:17px;font-weight:700;line-height:1.55;color:var(--ink-deep);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-card__title a{color:inherit;}
.news-card__title a:hover{color:var(--ink-soft);}
.news-card__desc{font-size:14px;color:var(--muted);line-height:1.8;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-card__body .link-arrow{margin-top:auto;padding-top:4px;}
.empty-state{border:1.5px dashed var(--line);border-radius:var(--radius-card);background:#fff;padding:56px 24px;text-align:center;}
.empty-state i{font-size:26px;color:rgba(20,85,74,.35);}
.empty-state p{margin:12px 0 18px;font-size:15px;color:var(--muted);}

/* ---------- faq ---------- */
.faq-wrap{max-width:880px;margin:0 auto;}
.faq-accordion{margin:0;border:0;background:transparent;}
.faq-accordion .accordion-item{background:#fff;border:1px solid var(--line);border-radius:14px;margin-bottom:12px;overflow:hidden;box-shadow:var(--shadow-sm);transition:border-color var(--ease),box-shadow var(--ease);}
.faq-accordion .accordion-item:hover{border-color:rgba(20,85,74,.3);}
.faq-accordion .accordion-item.is-active{border-color:var(--ink);box-shadow:var(--shadow-md);}
.faq-accordion .accordion-title{display:block;position:relative;padding:20px 58px 20px 24px;font-size:16px;font-weight:600;color:var(--text);border:0;background:transparent;line-height:1.6;transition:color var(--ease);}
.faq-accordion .accordion-title::before,.faq-accordion .accordion-title::after{display:none;}
.faq-accordion .accordion-title:hover{color:var(--ink);}
.faq-accordion .accordion-item.is-active .accordion-title{color:var(--ink);}
.faq-sign{position:absolute;right:24px;top:24px;width:16px;height:16px;transition:transform 240ms ease-out;}
.faq-sign::before,.faq-sign::after{content:"";position:absolute;background:var(--ink);border-radius:2px;}
.faq-sign::before{left:0;top:7px;width:16px;height:2px;}
.faq-sign::after{left:7px;top:0;width:2px;height:16px;transition:transform 240ms ease-out,opacity 240ms ease-out;}
.faq-accordion .accordion-item.is-active .faq-sign{transform:rotate(45deg);}
.faq-accordion .accordion-content{padding:0 24px 22px;font-size:15px;line-height:1.9;color:var(--muted);border:0;background:transparent;}
.faq-accordion .accordion-content[aria-hidden="true"]{display:none;}

/* ---------- cta ---------- */
.cta-banner{position:relative;overflow:hidden;background:var(--ink-deep);color:#F7F5EF;border-radius:24px;padding:56px 48px;display:flex;align-items:center;justify-content:space-between;gap:40px;}
.cta-banner::before{content:"";position:absolute;right:-80px;top:-80px;width:320px;height:320px;border-radius:50%;border:1px solid rgba(200,241,105,.16);}
.cta-banner::after{content:"";position:absolute;right:-20px;bottom:-120px;width:260px;height:260px;border-radius:50%;border:1px solid rgba(200,241,105,.12);}
.cta-banner__text{position:relative;z-index:1;max-width:620px;}
.cta-banner h2{color:#F7F5EF;margin-bottom:10px;}
.cta-banner p{color:rgba(247,245,239,.72);font-size:15px;}
.cta-banner__actions{position:relative;z-index:1;display:flex;gap:14px;flex-wrap:wrap;}

/* ---------- footer ---------- */
.site-footer{background:var(--ink-deep);color:rgba(247,245,239,.78);padding:72px 0 0;margin-top:96px;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px;}
.footer-brand .brand__mark{box-shadow:inset 0 0 0 1px rgba(200,241,105,.3);}
.footer-brand strong{display:block;font-size:16px;font-weight:800;color:#F7F5EF;}
.footer-brand em{font-style:normal;font-size:11px;letter-spacing:.14em;color:rgba(247,245,239,.5);}
.site-footer p{font-size:14px;line-height:1.85;color:rgba(247,245,239,.66);}
.footer-domain{display:inline-block;margin-top:14px;font-size:13px;font-weight:600;letter-spacing:.04em;color:var(--lime);}
.footer-col h4{font-size:14px;font-weight:700;color:#F7F5EF;margin-bottom:16px;letter-spacing:.02em;}
.footer-col li{margin-bottom:10px;}
.footer-col a{font-size:14px;color:rgba(247,245,239,.66);}
.footer-col a:hover{color:var(--lime);}
.footer-bottom{margin-top:56px;border-top:1px solid rgba(247,245,239,.14);padding:22px 0;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:rgba(247,245,239,.5);}

/* ---------- responsive ---------- */
@media (max-width:1279px){
  .container{max-width:1140px;}
}
@media (max-width:1023px){
  h1{font-size:32px;}
  h2{font-size:24px;}
  .section{padding:64px 0;}
  .hero__inner{flex-direction:column;align-items:flex-start;min-height:auto;padding-top:56px;padding-bottom:56px;gap:36px;}
  .hero__aside{width:100%;justify-content:flex-start;}
  .status-card{max-width:100%;}
  .flow{grid-template-columns:repeat(2,1fr);}
  .flow::before{display:none;}
  .reward-grid{grid-template-columns:repeat(2,1fr);}
  .reward-card--feature{grid-row:span 1;grid-column:span 2;}
  .progress-panel{grid-template-columns:1fr;gap:28px;padding:32px;}
  .progress-figure{border-left:0;border-top:1px dashed var(--line);padding-left:0;padding-top:24px;}
  .news-list{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-banner{flex-direction:column;align-items:flex-start;padding:40px 32px;}
  .main-nav{position:fixed;top:0;right:0;height:100%;width:86%;max-width:360px;background:#fff;flex-direction:column;align-items:stretch;gap:0;padding:88px 20px 120px;transform:translateX(100%);transition:transform 280ms ease-out;box-shadow:-20px 0 44px rgba(11,43,37,.2);z-index:75;overflow-y:auto;}
  .main-nav .nav-link{min-height:48px;border-bottom:1px solid var(--line);border-radius:0;padding:0 8px;font-size:15px;}
  .main-nav .nav-link::after{display:none;}
  .main-nav .nav-link.is-active{background:transparent;color:var(--ink);font-weight:700;}
  body.drawer-open .main-nav{transform:translateX(0);}
  .nav-toggle{display:inline-flex;}
  .header-actions .btn--primary{display:none;}
  .nav-drawer-cta{display:flex;margin-top:20px;}
}
@media (max-width:767px){
  h1{font-size:28px;}
  h2{font-size:22px;}
  h3{font-size:17px;}
  .section{padding:48px 0;}
  .section-head{margin-bottom:32px;}
  .topbar__note{display:none;}
  .flow{grid-template-columns:1fr;}
  .reward-grid{grid-template-columns:1fr;}
  .reward-card--feature{grid-column:span 1;}
  .hero__actions .btn{width:100%;}
  .cta-banner__actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:519px){
  h1{font-size:26px;}
  .container{padding:0 16px;}
  .brand__mark{width:38px;height:38px;font-size:17px;}
  .brand__text strong{font-size:15px;}
  .hero__eyebrow{font-size:12px;}
  .hero__sub{font-size:15px;}
  .progress-figure strong{font-size:42px;}
  .news-card__body{padding:18px;}
  .cta-banner{padding:32px 20px;}
}

/* roulang page: category1 */
:root{
  --green:#14554A;
  --green-deep:#0B2B25;
  --coral:#FF6B4A;
  --coral-dark:#F05432;
  --lime:#C8F169;
  --bg:#F7F5EF;
  --card:#FFFFFF;
  --soft:#EEF3EE;
  --line:#E3E0D6;
  --ink:#1A2320;
  --muted:#5D6B65;
  --radius-card:16px;
  --radius-img:14px;
  --radius-btn:999px;
  --radius-input:10px;
  --shadow-1:0 8px 24px rgba(11,43,37,.08);
  --shadow-2:0 16px 36px rgba(11,43,37,.14);
  --ease:200ms ease-out;
  --space-section:96px;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--radius-img);}
a{color:var(--green);text-decoration:none;transition:color var(--ease),border-color var(--ease),background-color var(--ease);}
a:hover{color:var(--coral);}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:700;line-height:1.3;}
p{margin:0;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--lime);outline-offset:2px;}
.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 24px;
}

/* ---------- 顶部信息条 ---------- */
.topbar{
  background:var(--green-deep);
  color:#F7F5EF;
  font-size:13px;
  line-height:1.6;
}
.topbar__inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  min-height:38px;
  padding-top:4px;
  padding-bottom:4px;
}
.topbar__meta{display:flex;align-items:center;gap:10px;flex-wrap:wrap;}
.topbar__dot{
  width:8px;height:8px;border-radius:50%;
  background:var(--lime);
  box-shadow:0 0 0 3px rgba(200,241,105,.18);
  flex:none;
}
.topbar__domain{font-weight:600;letter-spacing:.02em;color:#fff;}
.topbar__hint{color:rgba(247,245,239,.72);}
.topbar__cta{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 14px;
  border-radius:var(--radius-btn);
  border:1px solid rgba(247,245,239,.35);
  color:#F7F5EF;
  font-size:12px;
  letter-spacing:.02em;
  white-space:nowrap;
}
.topbar__cta:hover{background:var(--lime);border-color:var(--lime);color:var(--green-deep);}

/* ---------- 主导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(255,255,255,.96);
  border-bottom:1px solid var(--line);
  backdrop-filter:saturate(140%) blur(6px);
  transition:box-shadow var(--ease),border-color var(--ease);
}
.site-header.is-stuck{box-shadow:0 6px 20px rgba(11,43,37,.08);border-bottom-color:rgba(20,85,74,.18);}
.site-header__inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  min-height:72px;
}
.brand{display:flex;align-items:center;gap:12px;flex:none;}
.brand:hover{color:var(--green);}
.brand__mark{
  width:40px;height:40px;border-radius:12px;
  background:var(--green);
  color:var(--lime);
  display:inline-flex;align-items:center;justify-content:center;
  font-size:19px;font-weight:800;
  flex:none;
}
.brand__text{display:flex;flex-direction:column;line-height:1.2;}
.brand__text strong{font-size:16px;font-weight:800;color:var(--green-deep);letter-spacing:.01em;}
.brand__text em{font-style:normal;font-size:12px;color:var(--muted);letter-spacing:.08em;}
.main-nav{display:flex;align-items:center;gap:4px;flex-wrap:wrap;}
.nav-link{
  position:relative;
  display:inline-flex;align-items:center;
  padding:8px 14px;
  border-radius:var(--radius-btn);
  font-size:15px;
  color:var(--ink);
  white-space:nowrap;
}
.nav-link::after{
  content:"";
  position:absolute;left:14px;right:14px;bottom:4px;
  height:2px;border-radius:2px;
  background:var(--green);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform var(--ease);
}
.nav-link:hover{color:var(--green);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{background:var(--soft);color:var(--green);font-weight:600;}
.nav-link.is-active::after{transform:scaleX(0);}
.header-actions{display:flex;align-items:center;gap:12px;flex:none;}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  border:1px solid var(--line);
  border-radius:12px;
  background:#fff;
  color:var(--green);
  font-size:17px;
  cursor:pointer;
}
.nav-toggle:hover{border-color:var(--green);}
.nav-drawer-cta{display:none !important;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;
  padding:11px 24px;
  border-radius:var(--radius-btn);
  font-size:15px;
  font-weight:600;
  letter-spacing:.01em;
  border:1.5px solid transparent;
  cursor:pointer;
  transition:transform var(--ease),box-shadow var(--ease),background-color var(--ease),color var(--ease),border-color var(--ease);
  white-space:nowrap;
}
.btn--primary{background:var(--coral);color:#fff;box-shadow:0 8px 20px rgba(255,107,74,.24);}
.btn--primary:hover{background:var(--coral-dark);color:#fff;transform:translateY(-2px);box-shadow:0 14px 28px rgba(255,107,74,.3);}
.btn--primary:active{transform:translateY(0);box-shadow:0 6px 14px rgba(255,107,74,.22);}
.btn--ghost{background:transparent;border-color:var(--green);color:var(--green);}
.btn--ghost:hover{background:var(--soft);color:var(--green);transform:translateY(-2px);}
.btn--ghost:active{transform:translateY(0);}
.btn--sm{min-height:40px;padding:8px 18px;font-size:14px;}
.btn--link{
  background:none;border:none;padding:0;min-height:0;
  color:var(--green);font-size:15px;font-weight:600;
  display:inline-flex;align-items:center;gap:8px;
}
.btn--link i{transition:transform var(--ease);}
.btn--link:hover{color:var(--coral);}
.btn--link:hover i{transform:translateX(3px);}
.btn--light{background:transparent;border-color:rgba(247,245,239,.55);color:#F7F5EF;}
.btn--light:hover{background:rgba(247,245,239,.12);border-color:#F7F5EF;color:#fff;transform:translateY(-2px);}

/* ---------- 页面头 ---------- */
.page-hero{
  position:relative;
  overflow:hidden;
  background:var(--bg);
  border-bottom:1px solid var(--line);
}
.page-hero::before{
  content:"";
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.png');
  background-size:cover;
  background-position:center;
  opacity:.16;
}
.page-hero__inner{
  position:relative;
  display:grid;
  grid-template-columns:minmax(0,1fr) auto;
  gap:40px;
  align-items:center;
  padding-top:72px;
  padding-bottom:64px;
}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:5px 14px;
  border-radius:var(--radius-btn);
  background:rgba(20,85,74,.1);
  color:var(--green);
  font-size:12px;
  font-weight:600;
  letter-spacing:.04em;
  margin-bottom:18px;
}
.eyebrow i{font-size:11px;color:var(--coral);}
.page-hero h1{
  font-size:40px;
  font-weight:800;
  line-height:1.2;
  letter-spacing:-.01em;
  color:var(--green-deep);
  margin-bottom:18px;
}
.page-hero h1 span{color:var(--green);}
.page-hero__lead{
  max-width:640px;
  font-size:16px;
  line-height:1.85;
  color:var(--muted);
}
.page-hero__lead strong{color:var(--ink);font-weight:600;}
.page-hero__stamp{
  position:relative;
  width:180px;height:180px;
  border-radius:28px;
  background:#fff;
  border:1px solid var(--line);
  box-shadow:var(--shadow-1);
  display:flex;flex-direction:column;
  align-items:center;justify-content:center;
  gap:6px;
  flex:none;
}
.page-hero__stamp .num{
  font-size:52px;
  font-weight:800;
  line-height:1;
  color:var(--green);
  font-variant-numeric:tabular-nums;
  letter-spacing:-.02em;
}
.page-hero__stamp .txt{font-size:13px;color:var(--muted);letter-spacing:.14em;}
.page-hero__stamp::after{
  content:"";
  position:absolute;right:-14px;bottom:-14px;
  width:64px;height:64px;border-radius:18px;
  background:var(--lime);
  opacity:.5;
  z-index:-1;
}

/* ---------- 吸顶锚点导航 ---------- */
.anchor-bar{
  position:sticky;
  top:72px;
  z-index:50;
  background:rgba(247,245,239,.94);
  border-bottom:1px solid var(--line);
  backdrop-filter:blur(6px);
}
.anchor-bar__inner{
  display:flex;
  gap:8px;
  overflow-x:auto;
  padding:10px 24px;
  scrollbar-width:none;
}
.anchor-bar__inner::-webkit-scrollbar{display:none;}
.anchor-link{
  flex:none;
  padding:7px 16px;
  border-radius:var(--radius-btn);
  border:1px solid var(--line);
  background:#fff;
  color:var(--muted);
  font-size:13px;
  letter-spacing:.02em;
  transition:all var(--ease);
}
.anchor-link:hover,.anchor-link:focus-visible{
  border-color:var(--green);
  color:var(--green);
  background:var(--soft);
}

/* ---------- 板块 ---------- */
.section{padding:var(--space-section) 0;}
.section--tight{padding:64px 0;}
.section--soft{background:var(--soft);}
.section-head{max-width:720px;margin-bottom:48px;}
.section-head .kicker{
  display:inline-block;
  font-size:13px;
  font-weight:600;
  letter-spacing:.12em;
  color:var(--coral);
  margin-bottom:12px;
  text-transform:uppercase;
}
.section-title{font-size:28px;font-weight:700;line-height:1.3;color:var(--green-deep);margin-bottom:14px;}
.section-sub{font-size:15px;color:var(--muted);line-height:1.85;}

/* ---------- 图文左右交替 ---------- */
.feature-row{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:56px;
  align-items:center;
  padding:40px 0;
  border-bottom:1px dashed var(--line);
}
.feature-row:last-child{border-bottom:none;padding-bottom:0;}
.feature-row:first-child{padding-top:0;}
.feature-row--reverse .feature-media{order:2;}
.feature-media{position:relative;}
.feature-media img{
  width:100%;
  aspect-ratio:16/11;
  object-fit:cover;
  box-shadow:var(--shadow-1);
  transition:transform var(--ease),box-shadow var(--ease);
}
.feature-media:hover img{transform:translateY(-4px);box-shadow:var(--shadow-2);}
.feature-media__tag{
  position:absolute;top:14px;left:14px;
  padding:4px 12px;
  border-radius:var(--radius-btn);
  background:rgba(11,43,37,.82);
  color:#F7F5EF;
  font-size:12px;
  letter-spacing:.04em;
}
.feature-body .step-no{
  display:inline-flex;align-items:center;gap:10px;
  font-size:13px;
  font-weight:700;
  letter-spacing:.14em;
  color:var(--green);
  margin-bottom:14px;
}
.feature-body .step-no b{
  font-size:30px;
  font-weight:800;
  line-height:1;
  color:rgba(20,85,74,.2);
  font-variant-numeric:tabular-nums;
  letter-spacing:-.02em;
}
.feature-body h3{
  font-size:20px;
  font-weight:600;
  color:var(--green-deep);
  margin-bottom:14px;
}
.feature-body p{font-size:15px;color:var(--muted);margin-bottom:16px;}
.mini-list{display:flex;flex-direction:column;gap:10px;}
.mini-list li{
  position:relative;
  padding-left:26px;
  font-size:15px;
  color:var(--ink);
  line-height:1.75;
}
.mini-list li::before{
  content:"";
  position:absolute;left:4px;top:11px;
  width:8px;height:8px;border-radius:50%;
  background:var(--lime);
  box-shadow:0 0 0 3px rgba(200,241,105,.28);
}
.mini-list li em{font-style:normal;color:var(--muted);}

/* ---------- 速查卡 ---------- */
.facts-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);
  overflow:hidden;
}
.facts-card__head{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:22px 28px;
  border-bottom:1px solid var(--line);
  background:#fff;
}
.facts-card__head h3{font-size:17px;font-weight:600;color:var(--green-deep);}
.facts-card__head span{font-size:12px;color:var(--muted);letter-spacing:.06em;}
.fact-row{
  display:grid;
  grid-template-columns:200px minmax(0,1fr);
  gap:24px;
  padding:18px 28px;
  border-bottom:1px solid var(--line);
  transition:background-color var(--ease);
}
.fact-row:last-child{border-bottom:none;}
.fact-row:hover{background:var(--soft);}
.fact-key{font-size:14px;font-weight:600;color:var(--green);letter-spacing:.02em;}
.fact-val{font-size:15px;color:var(--ink);line-height:1.8;}
.fact-val small{display:block;font-size:13px;color:var(--muted);margin-top:4px;}

/* ---------- FAQ ---------- */
.faq{display:flex;flex-direction:column;gap:12px;}
.faq-item{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);
  overflow:hidden;
  transition:border-color var(--ease),box-shadow var(--ease);
}
.faq-item:hover{border-color:rgba(20,85,74,.35);}
.faq-item[open]{border-color:var(--green);box-shadow:var(--shadow-2);}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:20px 24px;
  cursor:pointer;
  list-style:none;
  font-size:16px;
  font-weight:600;
  color:var(--ink);
  transition:color var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::marker{content:"";}
.faq-item summary:hover{color:var(--green);}
.faq-item[open] summary{color:var(--green);}
.faq-sign{
  position:relative;
  width:26px;height:26px;flex:none;
  border-radius:50%;
  border:1.5px solid var(--line);
  transition:transform var(--ease),border-color var(--ease),background-color var(--ease);
}
.faq-sign::before,.faq-sign::after{
  content:"";position:absolute;background:var(--green);
  border-radius:2px;
}
.faq-sign::before{width:11px;height:1.5px;top:50%;left:50%;transform:translate(-50%,-50%);}
.faq-sign::after{width:1.5px;height:11px;top:50%;left:50%;transform:translate(-50%,-50%);}
.faq-item[open] .faq-sign{transform:rotate(45deg);border-color:var(--coral);background:rgba(255,107,74,.1);}
.faq-item[open] .faq-sign::before,.faq-item[open] .faq-sign::after{background:var(--coral);}
.faq-answer{
  padding:0 24px 22px;
  font-size:15px;
  line-height:1.9;
  color:var(--muted);
  border-top:1px solid var(--line);
  padding-top:18px;
  margin-top:-2px;
}
.faq-answer strong{color:var(--ink);font-weight:600;}

/* ---------- 相关分类互链 ---------- */
.related-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:24px;
}
.related-card{
  display:flex;flex-direction:column;gap:12px;
  padding:26px 24px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.related-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:rgba(20,85,74,.4);color:var(--ink);}
.related-card .tag{
  align-self:flex-start;
  padding:4px 12px;
  border-radius:var(--radius-btn);
  background:var(--soft);
  color:var(--green);
  font-size:12px;
  font-weight:600;
  letter-spacing:.03em;
}
.related-card h4{font-size:18px;font-weight:600;color:var(--green-deep);}
.related-card p{font-size:14px;color:var(--muted);line-height:1.8;}
.related-card .go{
  display:inline-flex;align-items:center;gap:8px;
  font-size:14px;font-weight:600;color:var(--green);
  margin-top:auto;
}
.related-card:hover .go{color:var(--coral);}
.related-card .go i{transition:transform var(--ease);}
.related-card:hover .go i{transform:translateX(3px);}

/* ---------- 底部 CTA ---------- */
.cta-banner{
  position:relative;
  overflow:hidden;
  background:var(--green-deep);
  color:#F7F5EF;
  padding:72px 0;
}
.cta-banner::before{
  content:"开云手机登录官网入口";
  position:absolute;
  right:-10px;bottom:-40px;
  font-size:120px;
  font-weight:800;
  line-height:1;
  color:rgba(247,245,239,.06);
  white-space:nowrap;
  pointer-events:none;
}
.cta-banner::after{
  content:"";
  position:absolute;
  left:-80px;top:-80px;
  width:320px;height:320px;
  border-radius:50%;
  border:1px solid rgba(200,241,105,.16);
  pointer-events:none;
}
.cta-banner__inner{
  position:relative;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:40px;
  flex-wrap:wrap;
}
.cta-banner h2{
  font-size:28px;
  font-weight:700;
  color:#fff;
  margin-bottom:10px;
}
.cta-banner p{font-size:15px;color:rgba(247,245,239,.78);max-width:520px;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--green-deep);
  color:#F7F5EF;
  padding:72px 0 0;
  font-size:14px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1fr;
  gap:40px;
  padding-bottom:56px;
  border-bottom:1px solid rgba(247,245,239,.14);
}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:18px;}
.footer-brand .brand__mark{background:rgba(247,245,239,.1);color:var(--lime);}
.footer-brand strong{display:block;font-size:16px;font-weight:800;color:#fff;line-height:1.3;}
.footer-brand em{font-style:normal;font-size:12px;color:rgba(247,245,239,.6);letter-spacing:.08em;}
.site-footer p{color:rgba(247,245,239,.7);line-height:1.85;max-width:340px;}
.footer-domain{
  display:inline-block;
  margin-top:16px;
  padding:4px 12px;
  border:1px solid rgba(247,245,239,.25);
  border-radius:var(--radius-btn);
  font-size:12px;
  color:rgba(247,245,239,.8);
  letter-spacing:.04em;
}
.footer-col h4{
  font-size:14px;
  font-weight:700;
  color:#fff;
  margin-bottom:18px;
  letter-spacing:.06em;
}
.footer-col ul{display:flex;flex-direction:column;gap:12px;}
.footer-col a{color:rgba(247,245,239,.72);font-size:14px;}
.footer-col a:hover{color:var(--lime);}
.footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  padding:24px 0 32px;
  font-size:13px;
  color:rgba(247,245,239,.55);
}

/* ---------- 断点 ---------- */
@media screen and (max-width:1279px){
  .container{padding:0 24px;}
}
@media screen and (max-width:1024px){
  :root{--space-section:64px;}
  .site-header__inner{min-height:64px;}
  .anchor-bar{top:64px;}
  .page-hero h1{font-size:32px;}
  .page-hero__inner{grid-template-columns:minmax(0,1fr);gap:32px;padding-top:56px;padding-bottom:48px;}
  .page-hero__stamp{width:132px;height:132px;border-radius:22px;}
  .page-hero__stamp .num{font-size:40px;}
  .feature-row{grid-template-columns:1fr;gap:28px;padding:32px 0;}
  .feature-row--reverse .feature-media{order:0;}
  .related-grid{grid-template-columns:1fr 1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .section-title{font-size:24px;}
  .main-nav{
    position:fixed;
    top:0;right:0;
    height:100vh;
    width:86%;
    max-width:360px;
    background:#fff;
    flex-direction:column;
    align-items:stretch;
    gap:0;
    padding:88px 20px 96px;
    box-shadow:-16px 0 40px rgba(11,43,37,.18);
    transform:translateX(102%);
    transition:transform 260ms ease-out;
    overflow-y:auto;
    z-index:80;
  }
  .main-nav.is-open{transform:translateX(0);}
  .nav-link{
    padding:0;
    min-height:48px;
    border-radius:0;
    border-bottom:1px solid var(--line);
    font-size:15px;
  }
  .nav-link::after{display:none;}
  .nav-link.is-active{background:transparent;color:var(--green);font-weight:700;}
  .nav-drawer-cta{
    display:flex !important;
    position:absolute;
    left:20px;right:20px;bottom:24px;
    width:auto;
  }
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center;}
  .header-actions .btn--sm{display:none;}
  .topbar__hint{display:none;}
}
@media screen and (max-width:640px){
  :root{--space-section:48px;}
  .container{padding:0 16px;}
  .anchor-bar__inner{padding:10px 16px;}
  .page-hero h1{font-size:26px;}
  .page-hero__lead{font-size:15px;}
  .page-hero__stamp{width:112px;height:112px;border-radius:18px;}
  .page-hero__stamp .num{font-size:32px;}
  .page-hero__stamp .txt{font-size:11px;letter-spacing:.08em;}
  .section-title{font-size:22px;}
  .feature-body h3{font-size:17px;}
  .fact-row{grid-template-columns:1fr;gap:6px;padding:16px 20px;}
  .facts-card__head{padding:18px 20px;flex-wrap:wrap;}
  .faq-item summary{padding:16px 18px;font-size:15px;}
  .faq-answer{padding:16px 18px 18px;}
  .related-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:36px;}
  .site-footer{padding-top:48px;}
  .cta-banner{padding:48px 0;}
  .cta-banner h2{font-size:22px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1 1 auto;}
  .btn{padding:11px 20px;font-size:14px;}
  .topbar{font-size:12px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
}
@media screen and (max-width:400px){
  .brand__text strong{font-size:15px;}
  .brand__mark{width:36px;height:36px;font-size:17px;}
}

/* roulang page: article */
:root{
  --ink:#14554A;
  --ink-deep:#0B2B25;
  --ink-soft:#1C6A5C;
  --coral:#FF6B4A;
  --coral-dark:#E9553A;
  --lime:#C8F169;
  --bg:#F7F5EF;
  --card:#FFFFFF;
  --mint:#EEF3EE;
  --line:#E3E0D6;
  --text:#1A2320;
  --muted:#5D6B65;
  --radius-card:16px;
  --radius-img:14px;
  --radius-input:10px;
  --shadow-sm:0 8px 24px rgba(11,43,37,.08);
  --shadow-lg:0 16px 36px rgba(11,43,37,.14);
  --ease:cubic-bezier(.22,.61,.36,1);
  --dur:220ms;
  --space-section:96px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.85;
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--radius-img);}
a{color:var(--ink);text-decoration:none;transition:color var(--dur) var(--ease);}
a:hover{color:var(--coral);}
button{font-family:inherit;}
h1,h2,h3,h4,h5,h6{margin:0;color:var(--text);font-weight:700;line-height:1.25;letter-spacing:.01em;}
p{margin:0 0 16px;}
ul,ol{margin:0 0 16px;padding-left:20px;}
:focus-visible{outline:2px solid var(--lime);outline-offset:2px;border-radius:4px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}

/* ---------- 顶部信息条 ---------- */
.topbar{
  background:var(--ink-deep);
  color:#EDEFE7;
  font-size:13px;
  line-height:1.4;
  letter-spacing:.02em;
}
.topbar__inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  min-height:38px;
  padding-top:6px;
  padding-bottom:6px;
}
.topbar__left{display:flex;align-items:center;gap:12px;min-width:0;}
.topbar__domain{
  font-weight:600;
  color:var(--lime);
  white-space:nowrap;
}
.topbar__note{color:rgba(237,239,231,.78);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.topbar__pill{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:4px 12px;
  border-radius:999px;
  border:1px solid rgba(200,241,105,.45);
  color:#EDEFE7;
  font-size:12px;
  white-space:nowrap;
  transition:background var(--dur) var(--ease),border-color var(--dur) var(--ease),color var(--dur) var(--ease);
}
.topbar__pill:hover{background:rgba(200,241,105,.14);border-color:var(--lime);color:var(--lime);}

/* ---------- 主导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:90;
  background:rgba(247,245,239,.96);
  backdrop-filter:saturate(140%) blur(6px);
  border-bottom:1px solid var(--line);
  transition:box-shadow var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.site-header.is-stuck{
  box-shadow:0 6px 20px rgba(11,43,37,.10);
  border-bottom-color:rgba(20,85,74,.18);
}
.site-header__inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  min-height:68px;
}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand__mark{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:38px;
  height:38px;
  border-radius:11px;
  background:var(--ink);
  color:var(--lime);
  font-size:17px;
  font-weight:800;
  line-height:1;
  box-shadow:0 6px 14px rgba(11,43,37,.18);
}
.brand__text{display:flex;flex-direction:column;line-height:1.15;}
.brand__text strong{font-size:16px;font-weight:800;color:var(--ink-deep);letter-spacing:.01em;}
.brand__text em{font-style:normal;font-size:11px;letter-spacing:.22em;color:var(--muted);}
.main-nav{display:flex;align-items:center;gap:4px;flex:1 1 auto;justify-content:center;}
.nav-link{
  position:relative;
  display:inline-flex;
  align-items:center;
  height:40px;
  padding:0 14px;
  border-radius:999px;
  font-size:15px;
  color:#31413B;
  white-space:nowrap;
  transition:background var(--dur) var(--ease),color var(--dur) var(--ease);
}
.nav-link::after{
  content:"";
  position:absolute;
  left:14px;
  right:14px;
  bottom:6px;
  height:2px;
  border-radius:2px;
  background:var(--ink);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform var(--dur) var(--ease);
}
.nav-link:hover{color:var(--ink);background:rgba(20,85,74,.06);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{background:var(--mint);color:var(--ink);font-weight:600;}
.nav-link.is-active::after{transform:scaleX(0);}
.header-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.nav-toggle{
  display:none;
  align-items:center;
  justify-content:center;
  width:44px;
  height:44px;
  border-radius:12px;
  border:1px solid var(--line);
  background:var(--card);
  color:var(--ink);
  font-size:17px;
  cursor:pointer;
  transition:background var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.nav-toggle:hover{background:var(--mint);border-color:var(--ink);}
.nav-scrim{
  position:fixed;
  inset:0;
  background:rgba(11,43,37,.42);
  opacity:0;
  visibility:hidden;
  transition:opacity var(--dur) var(--ease),visibility var(--dur) var(--ease);
  z-index:95;
}
.nav-scrim.is-open{opacity:1;visibility:visible;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:48px;
  padding:0 26px;
  border-radius:999px;
  border:1.5px solid transparent;
  font-size:15px;
  font-weight:600;
  line-height:1;
  cursor:pointer;
  transition:transform var(--dur) var(--ease),background var(--dur) var(--ease),box-shadow var(--dur) var(--ease),color var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.btn--sm{min-height:40px;padding:0 18px;font-size:14px;}
.btn--primary{background:var(--coral);color:#fff;box-shadow:0 10px 22px rgba(255,107,74,.26);}
.btn--primary:hover{background:var(--coral-dark);color:#fff;transform:translateY(-2px);box-shadow:0 14px 28px rgba(255,107,74,.32);}
.btn--primary:active{transform:translateY(0);}
.btn--outline{background:transparent;color:var(--ink);border-color:var(--ink);}
.btn--outline:hover{background:var(--mint);color:var(--ink);transform:translateY(-2px);}
.btn--outline:active{transform:translateY(0);}
.btn--light{background:rgba(247,245,239,.12);color:#F7F5EF;border-color:rgba(247,245,239,.55);}
.btn--light:hover{background:rgba(247,245,239,.2);color:#fff;transform:translateY(-2px);}
.btn--link{
  min-height:44px;
  padding:0 4px;
  background:transparent;
  color:var(--ink);
  border:none;
  border-radius:0;
}
.btn--link i{transition:transform var(--dur) var(--ease);}
.btn--link:hover{color:var(--coral);}
.btn--link:hover i{transform:translateX(3px);}

/* ---------- 面包屑 ---------- */
.crumb-bar{
  background:linear-gradient(180deg,rgba(238,243,238,.85),rgba(247,245,239,0));
  border-bottom:1px solid rgba(227,224,214,.7);
}
.crumb{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:8px;
  padding:18px 0;
  font-size:13px;
  color:var(--muted);
}
.crumb a{color:var(--muted);}
.crumb a:hover{color:var(--ink);text-decoration:underline;}
.crumb i{font-size:10px;color:#A9B4AE;}
.crumb span.is-current{color:var(--ink);font-weight:600;max-width:60ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

/* ---------- 文章布局 ---------- */
.article-wrap{padding:48px 0 80px;}
.article-layout{
  display:grid;
  grid-template-columns:minmax(0,800px) 300px;
  gap:48px;
  justify-content:center;
  align-items:start;
}
.article-main{min-width:0;}
.article-head{margin-bottom:32px;}
.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:5px 13px;
  border-radius:999px;
  background:var(--mint);
  color:var(--ink);
  font-size:12px;
  font-weight:600;
  letter-spacing:.02em;
  border:1px solid rgba(20,85,74,.14);
}
.badge--coral{background:rgba(255,107,74,.12);color:#C63F26;border-color:rgba(255,107,74,.24);}
.article-title{
  font-size:40px;
  font-weight:800;
  line-height:1.24;
  margin:16px 0 20px;
  color:var(--ink-deep);
  letter-spacing:-.01em;
  word-break:break-word;
}
.meta-row{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px 18px;
  font-size:13px;
  color:var(--muted);
  padding-bottom:24px;
  border-bottom:1px solid var(--line);
}
.meta-row .meta-item{display:inline-flex;align-items:center;gap:7px;}
.meta-row i{color:var(--ink-soft);font-size:12px;}
.meta-row .dot{width:3px;height:3px;border-radius:50%;background:#C3CAC5;}

/* ---------- 目录（移动端横条） ---------- */
.toc-strip{
  display:none;
  align-items:center;
  gap:12px;
  margin-bottom:24px;
  padding:10px 14px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:14px;
  box-shadow:var(--shadow-sm);
}
.toc-strip__label{
  flex:0 0 auto;
  font-size:12px;
  font-weight:700;
  color:var(--ink);
  letter-spacing:.06em;
}
.toc-strip__list{
  display:flex;
  gap:8px;
  overflow-x:auto;
  scrollbar-width:none;
  padding-bottom:2px;
}
.toc-strip__list::-webkit-scrollbar{display:none;}
.toc-strip__list a{
  flex:0 0 auto;
  padding:6px 12px;
  border-radius:999px;
  background:var(--mint);
  color:var(--ink);
  font-size:13px;
  white-space:nowrap;
  transition:background var(--dur) var(--ease),color var(--dur) var(--ease);
}
.toc-strip__list a:hover{background:var(--ink);color:#F7F5EF;}

/* ---------- 正文排版 ---------- */
.article-content{
  font-size:16px;
  line-height:1.9;
  color:#22302B;
  word-break:break-word;
}
.article-content > *:first-child{margin-top:0;}
.article-content p{margin:0 0 20px;}
.article-content h2{
  position:relative;
  font-size:24px;
  font-weight:700;
  color:var(--ink-deep);
  margin:44px 0 18px;
  padding-left:16px;
  line-height:1.4;
  scroll-margin-top:96px;
}
.article-content h2::before{
  content:"";
  position:absolute;
  left:0;
  top:6px;
  bottom:6px;
  width:4px;
  border-radius:4px;
  background:var(--ink);
}
.article-content h3{
  font-size:19px;
  font-weight:600;
  color:var(--ink);
  margin:32px 0 14px;
  scroll-margin-top:96px;
}
.article-content h4{
  font-size:17px;
  font-weight:600;
  margin:26px 0 12px;
  color:var(--ink-deep);
}
.article-content ul,.article-content ol{
  margin:0 0 22px;
  padding-left:22px;
}
.article-content li{margin-bottom:10px;}
.article-content ul{list-style:none;padding-left:0;}
.article-content ul > li{
  position:relative;
  padding-left:22px;
}
.article-content ul > li::before{
  content:"";
  position:absolute;
  left:4px;
  top:12px;
  width:7px;
  height:7px;
  border-radius:2px;
  background:var(--ink);
  opacity:.55;
}
.article-content ol{padding-left:24px;}
.article-content ol > li::marker{color:var(--ink);font-weight:700;}
.article-content a{
  color:var(--ink);
  font-weight:600;
  text-decoration:underline;
  text-decoration-color:rgba(20,85,74,.3);
  text-underline-offset:3px;
  transition:color var(--dur) var(--ease),text-decoration-color var(--dur) var(--ease);
}
.article-content a:hover{color:var(--coral);text-decoration-color:var(--coral);}
.article-content strong{color:var(--ink-deep);font-weight:700;}
.article-content blockquote{
  margin:26px 0;
  padding:20px 24px;
  background:var(--mint);
  border-left:4px solid var(--ink);
  border-radius:0 14px 14px 0;
  color:#2A3A34;
  font-size:15px;
  line-height:1.9;
}
.article-content blockquote p:last-child{margin-bottom:0;}
.article-content img{
  margin:26px 0;
  border-radius:var(--radius-img);
  box-shadow:var(--shadow-sm);
}
.article-content table{
  display:block;
  width:100%;
  overflow-x:auto;
  border-collapse:collapse;
  margin:24px 0;
  font-size:15px;
  background:var(--card);
  border-radius:12px;
}
.article-content th,.article-content td{
  padding:12px 16px;
  border:1px solid var(--line);
  text-align:left;
}
.article-content th{background:var(--mint);color:var(--ink-deep);font-weight:600;}
.article-content hr{
  border:none;
  height:1px;
  background:var(--line);
  margin:40px 0;
}
.article-content code{
  background:var(--mint);
  padding:2px 6px;
  border-radius:6px;
  font-size:.92em;
}

/* ---------- 空态 ---------- */
.empty-state{
  text-align:center;
  padding:64px 24px;
  background:var(--card);
  border:1px dashed #C9CEC7;
  border-radius:var(--radius-card);
}
.empty-state i{font-size:28px;color:var(--ink-soft);margin-bottom:14px;display:block;}
.empty-state h2{font-size:20px;margin-bottom:10px;color:var(--ink-deep);}
.empty-state p{color:var(--muted);font-size:15px;margin-bottom:22px;}

/* ---------- 文末分隔 + 相关推荐 ---------- */
.article-end{
  display:flex;
  align-items:center;
  gap:14px;
  margin:48px 0 40px;
  color:var(--muted);
  font-size:13px;
  letter-spacing:.08em;
}
.article-end::before,.article-end::after{
  content:"";
  flex:1 1 auto;
  height:1px;
  background:var(--line);
}
.related-block{margin-bottom:40px;}
.section-title{
  display:flex;
  align-items:center;
  gap:12px;
  font-size:22px;
  font-weight:700;
  color:var(--ink-deep);
  margin-bottom:20px;
}
.section-title span.bar{
  display:inline-block;
  width:22px;
  height:4px;
  border-radius:4px;
  background:var(--coral);
}
.related-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:20px;
}
.related-card{
  display:flex;
  flex-direction:column;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:20px;
  box-shadow:var(--shadow-sm);
  transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.related-card:hover{
  transform:translateY(-4px);
  box-shadow:var(--shadow-lg);
  border-color:rgba(20,85,74,.35);
  color:inherit;
}
.related-card .badge{align-self:flex-start;margin-bottom:12px;}
.related-card h3{font-size:16px;font-weight:600;color:var(--ink-deep);margin-bottom:8px;line-height:1.45;}
.related-card p{font-size:13px;color:var(--muted);margin-bottom:14px;line-height:1.75;}
.related-card .arrow{
  margin-top:auto;
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:13px;
  font-weight:600;
  color:var(--ink);
}
.related-card .arrow i{transition:transform var(--dur) var(--ease);}
.related-card:hover .arrow i{transform:translateX(3px);}

/* ---------- 返回入口按钮组 ---------- */
.post-nav{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  align-items:center;
  padding-top:8px;
}

/* ---------- 侧栏 ---------- */
.article-side{
  position:sticky;
  top:92px;
  display:grid;
  gap:20px;
}
.side-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:22px;
  box-shadow:var(--shadow-sm);
}
.side-card__title{
  font-size:15px;
  font-weight:700;
  color:var(--ink-deep);
  margin-bottom:14px;
  padding-bottom:12px;
  border-bottom:1px solid var(--line);
  letter-spacing:.02em;
}
.toc{display:flex;flex-direction:column;gap:2px;}
.toc a{
  display:block;
  padding:8px 10px;
  border-radius:8px;
  font-size:14px;
  color:#41524B;
  line-height:1.6;
  border-left:2px solid transparent;
  transition:background var(--dur) var(--ease),color var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.toc a:hover,.toc a.is-current{
  background:var(--mint);
  color:var(--ink);
  border-left-color:var(--ink);
}
.side-links{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:2px;}
.side-links a{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:8px;
  padding:9px 10px;
  border-radius:8px;
  font-size:14px;
  color:#41524B;
  transition:background var(--dur) var(--ease),color var(--dur) var(--ease);
}
.side-links a:hover{background:var(--mint);color:var(--ink);}
.side-links i{font-size:11px;color:#A9B4AE;}
.side-note{
  margin-top:14px;
  padding:12px 14px;
  background:var(--mint);
  border-radius:12px;
  font-size:13px;
  color:#3B4C45;
  line-height:1.7;
}

/* ---------- 底部 CTA ---------- */
.cta-band{
  position:relative;
  overflow:hidden;
  background:var(--ink-deep);
  color:#F2F4EC;
  padding:64px 0;
  margin-top:80px;
}
.cta-band::after{
  content:"开云手机登录官网入口";
  position:absolute;
  right:-40px;
  bottom:-30px;
  font-size:88px;
  font-weight:800;
  color:rgba(247,245,239,.05);
  white-space:nowrap;
  pointer-events:none;
  letter-spacing:.04em;
}
.cta-band__inner{
  position:relative;
  z-index:1;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:36px;
  flex-wrap:wrap;
}
.cta-band h2{
  font-size:28px;
  font-weight:700;
  color:#fff;
  margin-bottom:10px;
  line-height:1.35;
}
.cta-band p{
  margin:0;
  font-size:15px;
  color:rgba(242,244,236,.78);
  max-width:52ch;
  line-height:1.8;
}
.cta-band__actions{display:flex;gap:12px;flex-wrap:wrap;}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--ink-deep);
  color:#E7EBE2;
  padding:64px 0 26px;
  font-size:14px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1fr;
  gap:40px;
  padding-bottom:40px;
  border-bottom:1px solid rgba(247,245,239,.12);
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand strong{display:block;font-size:16px;color:#fff;font-weight:800;line-height:1.2;}
.footer-brand em{font-style:normal;font-size:11px;letter-spacing:.22em;color:rgba(231,235,226,.6);}
.site-footer p{color:rgba(231,235,226,.72);font-size:13.5px;line-height:1.85;margin:0 0 14px;max-width:34ch;}
.footer-domain{
  display:inline-block;
  padding:4px 12px;
  border-radius:999px;
  border:1px solid rgba(200,241,105,.35);
  color:var(--lime);
  font-size:12px;
  letter-spacing:.04em;
}
.footer-col h4{
  font-size:14px;
  font-weight:700;
  color:#fff;
  margin-bottom:16px;
  letter-spacing:.04em;
}
.footer-col ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:10px;}
.footer-col a{color:rgba(231,235,226,.72);font-size:13.5px;transition:color var(--dur) var(--ease);}
.footer-col a:hover{color:var(--lime);}
.footer-bottom{
  display:flex;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  padding-top:22px;
  font-size:12.5px;
  color:rgba(231,235,226,.55);
  line-height:1.7;
}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  :root{--space-section:64px;}
  .article-layout{grid-template-columns:minmax(0,1fr);gap:0;}
  .article-side{display:none;}
  .toc-strip{display:flex;}
  .article-title{font-size:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .main-nav{
    position:fixed;
    top:0;
    right:0;
    bottom:0;
    width:86%;
    max-width:360px;
    background:var(--bg);
    flex-direction:column;
    align-items:stretch;
    justify-content:flex-start;
    gap:0;
    padding:20px 20px 96px;
    transform:translateX(105%);
    transition:transform 280ms var(--ease);
    z-index:99;
    overflow-y:auto;
    box-shadow:-16px 0 40px rgba(11,43,37,.22);
  }
  .main-nav.is-open{transform:translateX(0);}
  .nav-link{
    height:48px;
    border-radius:12px;
    padding:0 12px;
    border-bottom:1px solid var(--line);
    font-size:16px;
  }
  .nav-link::after{display:none;}
  .nav-link.is-active{background:var(--mint);border-bottom-color:transparent;}
  .nav-drawer-cta{
    display:flex !important;
    position:fixed;
    left:20px;
    right:20px;
    bottom:20px;
    width:calc(100% - 40px);
    z-index:100;
  }
  .nav-toggle{display:inline-flex;}
  .header-actions .btn--primary{display:none;}
  .cta-band h2{font-size:24px;}
}
@media (max-width:768px){
  .container{padding:0 20px;}
  .topbar__note{display:none;}
  .article-wrap{padding:32px 0 56px;}
  .article-title{font-size:28px;}
  .related-grid{grid-template-columns:1fr;}
  .article-content h2{font-size:21px;margin-top:36px;}
  .article-content h3{font-size:18px;}
  .cta-band{padding:48px 0;margin-top:56px;}
  .cta-band::after{font-size:56px;}
  .cta-band__inner{flex-direction:column;align-items:flex-start;gap:24px;}
  .site-footer{padding:48px 0 22px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:28px;}
  .footer-bottom{flex-direction:column;gap:8px;}
}
@media (max-width:520px){
  .container{padding:0 16px;}
  body{font-size:15px;}
  .article-title{font-size:26px;margin:12px 0 16px;}
  .meta-row{gap:6px 12px;font-size:12.5px;padding-bottom:18px;}
  .article-content{font-size:15px;line-height:1.85;}
  .related-card{padding:16px;}
  .side-card{padding:18px;}
  .btn{width:100%;}
  .post-nav .btn{width:100%;}
  .cta-band__actions{width:100%;}
  .cta-band__actions .btn{width:100%;}
  .topbar__pill{display:none;}
}

/* roulang page: category2 */
:root{
      --ink:#1A2320;
      --ink-2:#5D6B65;
      --green:#14554A;
      --green-deep:#0B2B25;
      --green-soft:#EEF3EE;
      --coral:#FF6B4A;
      --coral-dark:#E85A3A;
      --lime:#C8F169;
      --bg:#F7F5EF;
      --card:#FFFFFF;
      --line:#E3E0D6;
      --radius-card:16px;
      --radius-img:14px;
      --shadow-1:0 8px 24px rgba(11,43,37,.08);
      --shadow-2:0 16px 36px rgba(11,43,37,.14);
      --ease:200ms ease-out;
      --font: "PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
    }

    *,*::before,*::after{ box-sizing:border-box; }

    html{ scroll-behavior:smooth; -webkit-text-size-adjust:100%; }

    body{
      margin:0;
      font-family:var(--font);
      font-size:16px;
      line-height:1.85;
      color:var(--ink);
      background:var(--bg);
      font-variant-numeric:tabular-nums;
      overflow-x:hidden;
    }

    h1,h2,h3,h4,h5,h6{ margin:0; font-weight:700; color:var(--ink); line-height:1.3; }
    h1{ font-size:40px; font-weight:800; line-height:1.2; }
    h2{ font-size:28px; }
    h3{ font-size:20px; font-weight:600; }
    p{ margin:0 0 16px; }
    p:last-child{ margin-bottom:0; }
    ul,ol{ margin:0; padding:0; list-style:none; }
    img{ max-width:100%; height:auto; display:block; }
    a{ color:var(--green); text-decoration:none; transition:color var(--ease); }
    a:hover{ color:var(--coral); }
    button{ font-family:inherit; }

    :focus-visible{ outline:2px solid var(--lime); outline-offset:2px; }

    .container{
      width:100%;
      max-width:1200px;
      margin:0 auto;
      padding:0 24px;
    }

    /* ---------- 顶部信息条 ---------- */
    .topbar{
      background:var(--green-deep);
      color:#F1EFE7;
      font-size:13px;
      line-height:1.4;
    }
    .topbar__inner{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:16px;
      min-height:38px;
      padding-top:6px;
      padding-bottom:6px;
    }
    .topbar__note{
      display:flex;
      align-items:center;
      gap:10px;
      color:rgba(247,245,239,.82);
      min-width:0;
    }
    .topbar__domain{
      color:#F7F5EF;
      font-weight:600;
      letter-spacing:.02em;
      white-space:nowrap;
    }
    .topbar__dot{
      width:1px;height:14px;background:rgba(247,245,239,.28);display:inline-block;flex:0 0 auto;
    }
    .topbar__text{
      overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
    }
    .topbar__pill{
      flex:0 0 auto;
      display:inline-flex;
      align-items:center;
      gap:6px;
      height:26px;
      padding:0 14px;
      border-radius:999px;
      background:rgba(200,241,105,.16);
      border:1px solid rgba(200,241,105,.42);
      color:#DDF7A6;
      font-size:12px;
      font-weight:600;
      letter-spacing:.02em;
      transition:background var(--ease), color var(--ease);
    }
    .topbar__pill:hover{ background:rgba(200,241,105,.28); color:#F7F5EF; }

    /* ---------- 主导航 ---------- */
    .site-header{
      position:sticky;
      top:0;
      z-index:120;
      background:#FFFFFF;
      border-bottom:1px solid var(--line);
      transition:box-shadow var(--ease), border-color var(--ease);
    }
    .site-header.is-scrolled{
      box-shadow:0 6px 20px rgba(11,43,37,.09);
      border-bottom-color:rgba(227,224,214,.7);
    }
    .site-header__inner{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:24px;
      min-height:70px;
    }
    .brand{
      display:inline-flex;
      align-items:center;
      gap:12px;
      flex:0 0 auto;
      color:var(--ink);
    }
    .brand:hover{ color:var(--ink); }
    .brand__mark{
      width:42px;height:42px;
      border-radius:13px;
      background:var(--green);
      color:var(--lime);
      display:inline-flex;
      align-items:center;
      justify-content:center;
      font-size:19px;
      font-weight:800;
      letter-spacing:0;
      flex:0 0 auto;
      box-shadow:0 6px 16px rgba(20,85,74,.24);
    }
    .brand__text{
      display:flex;
      flex-direction:column;
      line-height:1.18;
    }
    .brand__text strong{
      font-size:17px;
      font-weight:800;
      letter-spacing:.01em;
      color:var(--ink);
    }
    .brand__text em{
      font-style:normal;
      font-size:12px;
      font-weight:600;
      letter-spacing:.14em;
      color:var(--ink-2);
    }

    .main-nav{
      display:flex;
      align-items:center;
      gap:4px;
      flex:1 1 auto;
      justify-content:center;
    }
    .nav-link{
      position:relative;
      display:inline-flex;
      align-items:center;
      height:38px;
      padding:0 14px;
      border-radius:999px;
      font-size:15px;
      font-weight:600;
      color:var(--ink-2);
      white-space:nowrap;
      transition:color var(--ease), background var(--ease);
    }
    .nav-link::after{
      content:"";
      position:absolute;
      left:14px;right:14px;
      bottom:2px;
      height:2px;
      border-radius:2px;
      background:var(--green);
      transform:scaleX(0);
      transform-origin:center;
      transition:transform var(--ease);
    }
    .nav-link:hover{ color:var(--green); background:var(--green-soft); }
    .nav-link:hover::after{ transform:scaleX(1); }
    .nav-link.is-active{
      background:var(--green-soft);
      color:var(--green);
    }
    .nav-link.is-active::after{ transform:scaleX(1); background:var(--green); }

    .header-actions{
      display:flex;
      align-items:center;
      gap:10px;
      flex:0 0 auto;
    }

    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:8px;
      min-height:44px;
      padding:0 22px;
      border-radius:999px;
      font-size:15px;
      font-weight:600;
      letter-spacing:.01em;
      border:1.5px solid transparent;
      cursor:pointer;
      text-decoration:none;
      white-space:nowrap;
      transition:transform var(--ease), background-color var(--ease), color var(--ease), box-shadow var(--ease), border-color var(--ease);
    }
    .btn--primary{
      background:var(--coral);
      color:#FFFFFF;
      box-shadow:0 6px 18px rgba(255,107,74,.28);
    }
    .btn--primary:hover{
      background:var(--coral-dark);
      color:#FFFFFF;
      transform:translateY(-1px);
      box-shadow:0 10px 24px rgba(255,107,74,.34);
    }
    .btn--primary:active{ transform:translateY(0); box-shadow:0 4px 12px rgba(255,107,74,.26); }
    .btn--outline{
      background:transparent;
      color:var(--green);
      border-color:var(--green);
    }
    .btn--outline:hover{
      background:var(--green-soft);
      color:var(--green);
      transform:translateY(-1px);
    }
    .btn--outline:active{ transform:translateY(0); }
    .btn--light{
      background:transparent;
      color:#F7F5EF;
      border-color:rgba(247,245,239,.55);
    }
    .btn--light:hover{
      background:rgba(247,245,239,.14);
      color:#FFFFFF;
      transform:translateY(-1px);
    }
    .btn--sm{ min-height:38px; padding:0 18px; font-size:14px; }
    .btn__arrow{ transition:transform var(--ease); }
    .btn:hover .btn__arrow{ transform:translateX(3px); }

    .nav-toggle{
      display:none;
      width:44px;height:44px;
      align-items:center;
      justify-content:center;
      border-radius:12px;
      border:1px solid var(--line);
      background:#FFFFFF;
      color:var(--green);
      font-size:17px;
      cursor:pointer;
      transition:background var(--ease), border-color var(--ease);
    }
    .nav-toggle:hover{ background:var(--green-soft); border-color:rgba(20,85,74,.28); }

    .nav-mask{
      position:fixed;
      inset:0;
      background:rgba(11,43,37,.42);
      opacity:0;
      visibility:hidden;
      transition:opacity var(--ease), visibility var(--ease);
      z-index:110;
    }
    .nav-mask.is-open{ opacity:1; visibility:visible; }

    /* ---------- 页面头 ---------- */
    .page-head{
      position:relative;
      background:var(--bg);
      border-bottom:1px solid var(--line);
      overflow:hidden;
    }
    .page-head::before{
      content:"";
      position:absolute;
      inset:0;
      background-image:
        linear-gradient(rgba(20,85,74,.05) 1px, transparent 1px),
        linear-gradient(90deg, rgba(20,85,74,.05) 1px, transparent 1px);
      background-size:56px 56px;
      opacity:.55;
      pointer-events:none;
    }
    .page-head__inner{
      position:relative;
      display:flex;
      align-items:flex-end;
      justify-content:space-between;
      gap:48px;
      padding-top:64px;
      padding-bottom:56px;
    }
    .page-head__text{ max-width:720px; }
    .crumb{
      display:flex;
      flex-wrap:wrap;
      align-items:center;
      gap:8px;
      font-size:13px;
      color:var(--ink-2);
      margin-bottom:18px;
    }
    .crumb a{ color:var(--ink-2); }
    .crumb a:hover{ color:var(--green); }
    .crumb span{ color:var(--green); font-weight:600; }
    .crumb i{ font-size:10px; opacity:.55; }
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:8px;
      height:28px;
      padding:0 14px;
      border-radius:999px;
      background:var(--green-soft);
      border:1px solid rgba(20,85,74,.16);
      color:var(--green);
      font-size:12.5px;
      font-weight:700;
      letter-spacing:.02em;
      margin-bottom:18px;
    }
    .page-head h1{
      color:var(--green-deep);
      margin-bottom:18px;
    }
    .page-head h1 .accent{
      color:var(--green);
      background:linear-gradient(transparent 64%, rgba(200,241,105,.6) 64%);
    }
    .page-head__lead{
      font-size:16px;
      color:var(--ink-2);
      line-height:1.9;
      max-width:640px;
    }
    .page-head__badge{
      flex:0 0 auto;
      width:132px;height:132px;
      border-radius:50%;
      border:1.5px dashed rgba(20,85,74,.34);
      display:flex;
      flex-direction:column;
      align-items:center;
      justify-content:center;
      gap:2px;
      background:rgba(255,255,255,.65);
      color:var(--green);
    }
    .page-head__badge b{
      font-size:40px;
      font-weight:800;
      line-height:1;
      color:var(--green);
      font-variant-numeric:tabular-nums;
    }
    .page-head__badge small{
      font-size:12px;
      letter-spacing:.18em;
      color:var(--ink-2);
    }

    /* ---------- 锚点子导航 ---------- */
    .anchor-nav{
      position:sticky;
      top:70px;
      z-index:100;
      background:rgba(247,245,239,.94);
      backdrop-filter:saturate(140%) blur(6px);
      border-bottom:1px solid var(--line);
    }
    .anchor-nav__inner{
      display:flex;
      align-items:center;
      gap:8px;
      padding-top:12px;
      padding-bottom:12px;
      overflow-x:auto;
      scrollbar-width:none;
    }
    .anchor-nav__inner::-webkit-scrollbar{ display:none; }
    .anchor-pill{
      flex:0 0 auto;
      display:inline-flex;
      align-items:center;
      gap:7px;
      height:36px;
      padding:0 16px;
      border-radius:999px;
      border:1px solid var(--line);
      background:#FFFFFF;
      color:var(--ink-2);
      font-size:14px;
      font-weight:600;
      transition:color var(--ease), border-color var(--ease), background var(--ease), transform var(--ease);
    }
    .anchor-pill i{ font-size:12px; opacity:.7; }
    .anchor-pill:hover{
      color:var(--green);
      border-color:rgba(20,85,74,.38);
      background:var(--green-soft);
      transform:translateY(-1px);
    }

    /* ---------- 通用板块 ---------- */
    .section{ padding:88px 0; }
    .section--tight{ padding-top:64px; padding-bottom:64px; }
    .section--soft{ background:var(--green-soft); }
    .section__head{ max-width:720px; margin-bottom:44px; }
    .section__head h2{ color:var(--green-deep); margin-bottom:14px; }
    .section__head p{ color:var(--ink-2); font-size:15.5px; }

    .block-anchor{ scroll-margin-top:130px; }

    /* ---------- 时间轴 ---------- */
    .timeline{
      position:relative;
      padding-left:0;
      max-width:860px;
    }
    .timeline::before{
      content:"";
      position:absolute;
      left:21px;
      top:14px;
      bottom:14px;
      width:2px;
      background:linear-gradient(180deg, rgba(20,85,74,.42), rgba(200,241,105,.85), rgba(20,85,74,.18));
      border-radius:2px;
    }
    .timeline__item{
      position:relative;
      padding-left:72px;
      padding-bottom:36px;
    }
    .timeline__item:last-child{ padding-bottom:0; }
    .timeline__dot{
      position:absolute;
      left:0;
      top:6px;
      width:44px;height:44px;
      border-radius:50%;
      background:#FFFFFF;
      border:2px solid rgba(20,85,74,.28);
      display:flex;
      align-items:center;
      justify-content:center;
      color:var(--green);
      font-size:14px;
      font-weight:800;
      box-shadow:0 6px 16px rgba(11,43,37,.08);
      font-variant-numeric:tabular-nums;
      transition:background var(--ease), border-color var(--ease), color var(--ease);
    }
    .timeline__item:hover .timeline__dot{
      background:var(--green);
      border-color:var(--green);
      color:var(--lime);
    }
    .timeline__card{
      background:var(--card);
      border:1px solid var(--line);
      border-radius:var(--radius-card);
      padding:24px;
      box-shadow:var(--shadow-1);
      transition:transform var(--ease), box-shadow var(--ease), border-color var(--ease);
    }
    .timeline__item:hover .timeline__card{
      transform:translateY(-2px);
      box-shadow:var(--shadow-2);
      border-color:rgba(20,85,74,.26);
    }
    .timeline__card h3{ margin-bottom:10px; color:var(--green-deep); font-size:19px; }
    .timeline__card p{ color:var(--ink-2); font-size:15px; margin:0; }
    .tag{
      display:inline-flex;
      align-items:center;
      height:24px;
      padding:0 11px;
      border-radius:999px;
      font-size:12px;
      font-weight:700;
      letter-spacing:.02em;
      margin-bottom:12px;
    }
    .tag--green{ background:rgba(20,85,74,.09); color:var(--green); }
    .tag--lime{ background:rgba(200,241,105,.32); color:#3E5320; }
    .tag--coral{ background:rgba(255,107,74,.13); color:#C2401F; }

    /* ---------- 节奏三卡 ---------- */
    .pace-grid{
      display:grid;
      grid-template-columns:repeat(3,minmax(0,1fr));
      gap:24px;
    }
    .pace-card{
      position:relative;
      background:var(--card);
      border:1px solid var(--line);
      border-radius:var(--radius-card);
      padding:28px 24px 24px;
      box-shadow:var(--shadow-1);
      overflow:hidden;
      transition:transform var(--ease), box-shadow var(--ease), border-color var(--ease);
    }
    .pace-card::after{
      content:attr(data-index);
      position:absolute;
      right:14px;
      top:6px;
      font-size:56px;
      font-weight:800;
      color:rgba(20,85,74,.07);
      line-height:1;
      letter-spacing:-.04em;
      pointer-events:none;
    }
    .pace-card:hover{
      transform:translateY(-2px);
      box-shadow:var(--shadow-2);
      border-color:rgba(20,85,74,.26);
    }
    .pace-card h3{ margin-bottom:10px; color:var(--green-deep); font-size:19px; }
    .pace-card p{ color:var(--ink-2); font-size:15px; margin:0 0 16px; }
    .pace-card__meta{
      display:flex;
      align-items:center;
      gap:8px;
      font-size:13px;
      color:var(--ink-2);
      padding-top:14px;
      border-top:1px dashed var(--line);
    }
    .pace-card__meta b{ color:var(--green); font-weight:700; }

    /* ---------- 图文块 ---------- */
    .figure-row{
      display:grid;
      grid-template-columns:minmax(0,1.05fr) minmax(0,1fr);
      gap:48px;
      align-items:center;
    }
    .figure-media{
      border-radius:var(--radius-img);
      overflow:hidden;
      box-shadow:var(--shadow-1);
      border:1px solid var(--line);
      background:#fff;
    }
    .figure-media img{
      width:100%;
      aspect-ratio:16/10;
      object-fit:cover;
      transition:transform 420ms ease-out;
    }
    .figure-media:hover img{ transform:scale(1.03); }
    .figure-body h2{ color:var(--green-deep); margin-bottom:16px; }
    .figure-body > p{ color:var(--ink-2); }
    .check-list{ margin-top:22px; display:grid; gap:14px; }
    .check-list li{
      display:flex;
      gap:12px;
      align-items:flex-start;
      font-size:15px;
      color:var(--ink);
      line-height:1.75;
    }
    .check-list li i{
      flex:0 0 auto;
      margin-top:5px;
      width:20px;height:20px;
      border-radius:50%;
      background:rgba(200,241,105,.45);
      color:var(--green);
      font-size:11px;
      display:inline-flex;
      align-items:center;
      justify-content:center;
    }
    .check-list li strong{ color:var(--green-deep); font-weight:700; }

    /* ---------- 速查卡 ---------- */
    .quick-card{
      background:var(--card);
      border:1px solid var(--line);
      border-radius:var(--radius-card);
      box-shadow:var(--shadow-1);
      overflow:hidden;
    }
    .quick-row{
      display:grid;
      grid-template-columns:minmax(0,240px) minmax(0,1fr);
      gap:24px;
      padding:20px 28px;
      border-bottom:1px solid var(--line);
      transition:background var(--ease);
    }
    .quick-row:last-child{ border-bottom:none; }
    .quick-row:hover{ background:rgba(238,243,238,.62); }
    .quick-key{
      display:flex;
      align-items:center;
      gap:10px;
      font-size:15px;
      font-weight:700;
      color:var(--green-deep);
    }
    .quick-key i{ color:var(--green); font-size:13px; opacity:.85; }
    .quick-val{
      font-size:15px;
      color:var(--ink-2);
      line-height:1.8;
    }
    .quick-val b{ color:var(--ink); font-weight:700; }

    /* ---------- FAQ ---------- */
    .faq{
      background:var(--card);
      border:1px solid var(--line);
      border-radius:var(--radius-card);
      box-shadow:var(--shadow-1);
      overflow:hidden;
    }
    .faq-item{ border-bottom:1px solid var(--line); }
    .faq-item:last-child{ border-bottom:none; }
    .faq-item summary{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:16px;
      padding:22px 26px;
      cursor:pointer;
      font-size:16px;
      font-weight:600;
      color:var(--green-deep);
      list-style:none;
      transition:color var(--ease), background var(--ease);
    }
    .faq-item summary::-webkit-details-marker{ display:none; }
    .faq-item summary::marker{ content:""; }
    .faq-item summary:hover{ background:rgba(238,243,238,.6); color:var(--green); }
    .faq-icon{
      flex:0 0 auto;
      width:26px;height:26px;
      border-radius:50%;
      border:1.5px solid rgba(20,85,74,.28);
      display:inline-flex;
      align-items:center;
      justify-content:center;
      color:var(--green);
      font-size:12px;
      transition:transform var(--ease), background var(--ease), color var(--ease), border-color var(--ease);
    }
    .faq-item[open] summary{ color:var(--green); }
    .faq-item[open] .faq-icon{
      transform:rotate(45deg);
      background:var(--green);
      border-color:var(--green);
      color:var(--lime);
    }
    .faq-body{
      padding:0 26px 24px;
      font-size:15px;
      color:var(--ink-2);
      line-height:1.9;
      max-width:820px;
    }

    /* ---------- 相关分类 ---------- */
    .rel-grid{
      display:grid;
      grid-template-columns:repeat(3,minmax(0,1fr));
      gap:24px;
    }
    .rel-card{
      display:flex;
      flex-direction:column;
      gap:10px;
      background:var(--card);
      border:1px solid var(--line);
      border-radius:var(--radius-card);
      padding:24px;
      box-shadow:var(--shadow-1);
      transition:transform var(--ease), box-shadow var(--ease), border-color var(--ease);
      color:var(--ink);
      height:100%;
    }
    .rel-card:hover{
      transform:translateY(-2px);
      box-shadow:var(--shadow-2);
      border-color:rgba(20,85,74,.26);
      color:var(--ink);
    }
    .rel-card h3{ font-size:17px; color:var(--green-deep); }
    .rel-card p{ font-size:14px; color:var(--ink-2); margin:0; line-height:1.75; }
    .rel-card__go{
      margin-top:auto;
      display:inline-flex;
      align-items:center;
      gap:8px;
      font-size:14px;
      font-weight:700;
      color:var(--coral);
      padding-top:12px;
    }
    .rel-card__go i{ transition:transform var(--ease); }
    .rel-card:hover .rel-card__go i{ transform:translateX(3px); }

    /* ---------- 底部 CTA ---------- */
    .cta-band{
      position:relative;
      background:linear-gradient(120deg, var(--green-deep) 0%, #12463D 62%, #17604F 100%);
      color:#F7F5EF;
      overflow:hidden;
    }
    .cta-band::before{
      content:"开云手机登录官网入口";
      position:absolute;
      right:-24px;
      bottom:-26px;
      font-size:86px;
      font-weight:800;
      color:rgba(247,245,239,.055);
      line-height:1;
      letter-spacing:.02em;
      white-space:nowrap;
      pointer-events:none;
    }
    .cta-band::after{
      content:"";
      position:absolute;
      right:120px;
      top:-90px;
      width:280px;height:280px;
      border-radius:50%;
      border:1.5px solid rgba(200,241,105,.14);
      pointer-events:none;
    }
    .cta-band__inner{
      position:relative;
      z-index:1;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:40px;
      padding:64px 0;
    }
    .cta-band h2{ color:#F7F5EF; margin-bottom:10px; font-size:26px; }
    .cta-band p{ color:rgba(247,245,239,.76); font-size:15px; margin:0; max-width:520px; }
    .cta-actions{ display:flex; gap:12px; flex-wrap:wrap; flex:0 0 auto; }

    /* ---------- 页脚 ---------- */
    .site-footer{
      background:var(--green-deep);
      color:rgba(247,245,239,.76);
      font-size:14px;
      padding-top:64px;
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.5fr 1fr 1fr 1fr;
      gap:40px;
      padding-bottom:48px;
    }
    .footer-brand{
      display:flex;
      align-items:center;
      gap:12px;
      margin-bottom:16px;
    }
    .footer-brand .brand__mark{
      width:38px;height:38px;font-size:17px;border-radius:12px;
      box-shadow:none;
    }
    .footer-brand strong{
      display:block;
      color:#F7F5EF;
      font-size:16px;
      font-weight:800;
      line-height:1.2;
    }
    .footer-brand em{
      display:block;
      font-style:normal;
      font-size:11.5px;
      letter-spacing:.14em;
      color:rgba(247,245,239,.56);
    }
    .site-footer p{
      color:rgba(247,245,239,.66);
      font-size:13.5px;
      line-height:1.85;
      max-width:320px;
      margin-bottom:16px;
    }
    .footer-domain{
      display:inline-flex;
      align-items:center;
      height:26px;
      padding:0 12px;
      border-radius:999px;
      border:1px solid rgba(247,245,239,.22);
      color:rgba(247,245,239,.72);
      font-size:12px;
      letter-spacing:.04em;
    }
    .footer-col h4{
      color:#F7F5EF;
      font-size:14px;
      font-weight:700;
      margin-bottom:16px;
      letter-spacing:.02em;
    }
    .footer-col ul{ display:grid; gap:10px; }
    .footer-col a{
      color:rgba(247,245,239,.68);
      font-size:13.5px;
      transition:color var(--ease), padding-left var(--ease);
    }
    .footer-col a:hover{ color:var(--lime); padding-left:3px; }
    .footer-bottom{
      border-top:1px solid rgba(247,245,239,.14);
      padding-top:22px;
      padding-bottom:26px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:16px;
      flex-wrap:wrap;
      font-size:12.5px;
      color:rgba(247,245,239,.52);
    }

    /* ---------- 入场动画 ---------- */
    .reveal{
      opacity:0;
      transform:translateY(18px);
      transition:opacity 620ms ease-out, transform 620ms ease-out;
    }
    .reveal.is-in{ opacity:1; transform:none; }

    @media (prefers-reduced-motion: reduce){
      *{ animation:none !important; transition:none !important; }
      .reveal{ opacity:1; transform:none; }
      html{ scroll-behavior:auto; }
    }

    /* ---------- 响应式 ---------- */
    @media (max-width:1279px){
      .container{ max-width:1140px; }
    }

    @media (max-width:1023px){
      h1{ font-size:32px; }
      h2{ font-size:24px; }
      .site-header__inner{ min-height:64px; }
      .main-nav{
        position:fixed;
        top:0;
        right:0;
        width:86%;
        max-width:360px;
        height:100vh;
        background:#FFFFFF;
        flex-direction:column;
        align-items:stretch;
        justify-content:flex-start;
        gap:0;
        padding:88px 22px 26px;
        transform:translateX(102%);
        transition:transform 280ms ease-out;
        box-shadow:-18px 0 40px rgba(11,43,37,.2);
        z-index:115;
        overflow-y:auto;
      }
      .main-nav.is-open{ transform:translateX(0); }
      .main-nav .nav-link{
        width:100%;
        height:48px;
        justify-content:flex-start;
        border-radius:10px;
        border-bottom:1px solid var(--line);
        padding:0 10px;
        font-size:15.5px;
      }
      .main-nav .nav-link:last-of-type{ border-bottom:none; }
      .nav-link::after{ display:none; }
      .nav-drawer-cta{
        display:inline-flex !important;
        margin-top:22px;
        width:100%;
        border-bottom:none !important;
        justify-content:center !important;
      }
      .nav-toggle{ display:inline-flex; }
      .header-actions .btn--sm{ display:none; }
      .anchor-nav{ top:64px; }
      .page-head__inner{ padding-top:48px; padding-bottom:42px; gap:28px; }
      .page-head__badge{ width:104px;height:104px; }
      .page-head__badge b{ font-size:32px; }
      .section{ padding:64px 0; }
      .pace-grid{ grid-template-columns:repeat(2,minmax(0,1fr)); }
      .figure-row{ grid-template-columns:1fr; gap:32px; }
      .rel-grid{ grid-template-columns:repeat(2,minmax(0,1fr)); }
      .footer-grid{ grid-template-columns:1fr 1fr; gap:32px; }
      .cta-band__inner{ flex-direction:column; align-items:flex-start; padding:52px 0; }
      .cta-band::before{ font-size:64px; }
      .quick-row{ grid-template-columns:minmax(0,200px) minmax(0,1fr); padding:18px 24px; gap:18px; }
    }

    @media (max-width:767px){
      .topbar__text,.topbar__dot{ display:none; }
      .page-head__inner{ flex-direction:column; align-items:flex-start; gap:24px; }
      .page-head__badge{ width:92px;height:92px; align-self:flex-start; }
      .pace-grid{ grid-template-columns:1fr; }
      .rel-grid{ grid-template-columns:1fr; }
      .quick-row{ grid-template-columns:1fr; gap:6px; padding:18px 20px; }
      .quick-key{ font-size:14.5px; }
      .timeline__item{ padding-left:62px; }
      .timeline__dot{ width:38px;height:38px; font-size:13px; }
      .timeline::before{ left:18px; }
      .footer-grid{ grid-template-columns:1fr; gap:28px; }
      .footer-bottom{ flex-direction:column; align-items:flex-start; gap:8px; }
      .faq-item summary{ padding:18px 20px; font-size:15px; }
      .faq-body{ padding:0 20px 20px; }
      .cta-actions{ width:100%; }
      .cta-actions .btn{ flex:1 1 auto; }
      .cta-band::before{ font-size:44px; right:-10px; bottom:-12px; }
    }

    @media (max-width:519px){
      .container{ padding:0 16px; }
      h1{ font-size:26px; }
      h2{ font-size:22px; }
      h3{ font-size:17px; }
      body{ font-size:15px; }
      .brand__text strong{ font-size:15.5px; }
      .brand__mark{ width:38px;height:38px; font-size:17px; border-radius:12px; }
      .page-head__lead{ font-size:15px; }
      .section{ padding:48px 0; }
      .section__head{ margin-bottom:28px; }
      .timeline__card{ padding:20px 18px; }
      .pace-card{ padding:24px 20px 20px; }
      .anchor-nav__inner{ padding-top:10px; padding-bottom:10px; }
      .cta-band h2{ font-size:21px; }
    }

/* roulang page: category3 */
:root{
  --ink:#1A2320;
  --ink-2:#5D6B65;
  --green:#14554A;
  --green-dark:#0B2B25;
  --green-soft:#1B6B5D;
  --coral:#FF6B4A;
  --coral-dark:#E85535;
  --lime:#C8F169;
  --bg:#F7F5EF;
  --card:#FFFFFF;
  --mint:#EEF3EE;
  --line:#E3E0D6;
  --r-card:16px;
  --r-img:14px;
  --r-btn:999px;
  --r-input:10px;
  --sh:0 8px 24px rgba(11,43,37,.08);
  --sh-hover:0 16px 36px rgba(11,43,37,.14);
  --ease:cubic-bezier(.4,0,.2,1);
  --dur:220ms;
  --container:1200px;
  --font:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;height:auto;}
a{color:var(--green);text-decoration:none;transition:color var(--dur) var(--ease);}
a:hover{color:var(--green-soft);}
a:focus-visible,button:focus-visible,input:focus-visible{
  outline:2px solid var(--lime);
  outline-offset:2px;
  border-radius:6px;
}
h1,h2,h3,h4,p,ul,ol,li,figure{margin:0;padding:0;}
ul,ol{list-style:none;}
button{font-family:inherit;border:0;background:none;cursor:pointer;}
::selection{background:var(--lime);color:var(--green-dark);}

.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 24px;
}

/* ---------- 顶部信息条 ---------- */
.topbar{
  background:var(--green-dark);
  color:#F7F5EF;
  font-size:13px;
  letter-spacing:.02em;
}
.topbar__inner{
  min-height:38px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
}
.topbar__left{display:flex;align-items:center;gap:14px;min-width:0;}
.topbar__domain{
  font-weight:600;
  color:#fff;
  letter-spacing:.03em;
  white-space:nowrap;
}
.topbar__hint{
  color:rgba(247,245,239,.72);
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
}
.topbar__pill{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:4px 12px;
  border:1px solid rgba(200,241,105,.5);
  border-radius:var(--r-btn);
  color:var(--lime);
  font-size:12px;
  white-space:nowrap;
  transition:background var(--dur) var(--ease),color var(--dur) var(--ease);
}
.topbar__pill:hover{background:var(--lime);color:var(--green-dark);}

/* ---------- 主导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(247,245,239,.96);
  backdrop-filter:saturate(160%) blur(8px);
  border-bottom:1px solid var(--line);
  transition:box-shadow var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.site-header.is-scrolled{
  box-shadow:0 6px 20px rgba(11,43,37,.10);
  border-bottom-color:rgba(11,43,37,.12);
}
.site-header__inner{
  min-height:68px;
  display:flex;
  align-items:center;
  gap:24px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
}
.brand__mark{
  width:38px;height:38px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border-radius:12px;
  background:var(--green);
  color:var(--lime);
  font-size:18px;
  font-weight:800;
  letter-spacing:0;
  box-shadow:0 6px 16px rgba(20,85,74,.28);
}
.brand__text{display:flex;flex-direction:column;line-height:1.15;}
.brand__text strong{
  font-size:16px;
  font-weight:800;
  color:var(--green-dark);
  letter-spacing:.01em;
}
.brand__text em{
  font-style:normal;
  font-size:11px;
  color:var(--ink-2);
  letter-spacing:.16em;
}
.main-nav{
  display:flex;
  align-items:center;
  gap:4px;
  margin-left:auto;
}
.nav-link{
  position:relative;
  display:inline-flex;
  align-items:center;
  height:40px;
  padding:0 14px;
  border-radius:var(--r-btn);
  font-size:15px;
  font-weight:500;
  color:var(--ink);
  white-space:nowrap;
  transition:background var(--dur) var(--ease),color var(--dur) var(--ease);
}
.nav-link::after{
  content:"";
  position:absolute;
  left:14px;right:14px;bottom:6px;
  height:2px;
  border-radius:2px;
  background:var(--green);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform var(--dur) var(--ease);
}
.nav-link:hover{color:var(--green);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{
  background:var(--mint);
  color:var(--green);
  font-weight:700;
}
.nav-link.is-active::after{display:none;}
.header-actions{
  display:flex;
  align-items:center;
  gap:10px;
  margin-left:8px;
}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  align-items:center;
  justify-content:center;
  border-radius:12px;
  border:1px solid var(--line);
  color:var(--green-dark);
  font-size:18px;
  background:#fff;
  transition:background var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.nav-toggle:hover{background:var(--mint);border-color:var(--green);}
.nav-drawer-cta{display:none !important;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:44px;
  padding:0 24px;
  border-radius:var(--r-btn);
  font-size:15px;
  font-weight:600;
  letter-spacing:.01em;
  white-space:nowrap;
  border:1.5px solid transparent;
  transition:background var(--dur) var(--ease),color var(--dur) var(--ease),
             border-color var(--dur) var(--ease),transform var(--dur) var(--ease),
             box-shadow var(--dur) var(--ease);
}
.btn--primary{
  background:var(--coral);
  color:#fff;
  box-shadow:0 8px 20px rgba(255,107,74,.28);
}
.btn--primary:hover{
  background:var(--coral-dark);
  color:#fff;
  transform:translateY(-1px);
  box-shadow:0 12px 26px rgba(255,107,74,.34);
}
.btn--primary:active{transform:translateY(0);box-shadow:0 6px 14px rgba(255,107,74,.26);}
.btn--ghost{
  background:transparent;
  border-color:var(--green);
  color:var(--green);
}
.btn--ghost:hover{background:var(--mint);color:var(--green);transform:translateY(-1px);}
.btn--ghost:active{transform:translateY(0);}
.btn--light{
  background:transparent;
  border-color:rgba(247,245,239,.55);
  color:#F7F5EF;
}
.btn--light:hover{
  background:rgba(247,245,239,.12);
  border-color:#F7F5EF;
  color:#fff;
  transform:translateY(-1px);
}
.btn--sm{min-height:38px;padding:0 18px;font-size:14px;}
.btn--link{
  min-height:auto;
  padding:0;
  background:none;
  border:0;
  color:var(--green);
  font-weight:600;
  font-size:15px;
  display:inline-flex;
  align-items:center;
  gap:6px;
}
.btn--link i{transition:transform var(--dur) var(--ease);}
.btn--link:hover{color:var(--green-soft);}
.btn--link:hover i{transform:translateX(3px);}

/* ---------- 页面头 ---------- */
.page-head{
  position:relative;
  overflow:hidden;
  background:
    radial-gradient(1200px 380px at 88% -30%, rgba(200,241,105,.22), transparent 70%),
    linear-gradient(180deg,#FBF9F3 0%, var(--mint) 100%);
  border-bottom:1px solid var(--line);
}
.page-head::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:
    linear-gradient(to right, rgba(20,85,74,.06) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(20,85,74,.06) 1px, transparent 1px);
  background-size:56px 56px;
  opacity:.6;
  pointer-events:none;
}
.page-head__inner{
  position:relative;
  display:grid;
  grid-template-columns:minmax(0,1fr) 200px;
  gap:40px;
  align-items:center;
  padding-top:64px;
  padding-bottom:64px;
}
.breadcrumb{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--ink-2);
  margin-bottom:18px;
  flex-wrap:wrap;
}
.breadcrumb a{color:var(--ink-2);}
.breadcrumb a:hover{color:var(--green);text-decoration:underline;text-underline-offset:3px;}
.breadcrumb .sep{color:#B9B4A6;}
.breadcrumb .current{color:var(--green);font-weight:600;}
.page-head h1{
  font-size:40px;
  line-height:1.2;
  font-weight:800;
  color:var(--green-dark);
  letter-spacing:-.01em;
  max-width:20em;
}
.page-head h1 .accent{
  color:var(--green);
  background:linear-gradient(180deg,transparent 62%,rgba(200,241,105,.65) 62%);
  padding:0 4px;
}
.page-head__lead{
  margin-top:16px;
  max-width:640px;
  font-size:16px;
  color:var(--ink-2);
  line-height:1.85;
}
.page-head__badge{
  justify-self:end;
  width:168px;height:168px;
  border-radius:28px;
  background:#fff;
  border:1px solid var(--line);
  box-shadow:var(--sh);
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:2px;
  position:relative;
}
.page-head__badge::after{
  content:"";
  position:absolute;
  inset:10px;
  border:1px dashed rgba(20,85,74,.22);
  border-radius:20px;
}
.page-head__badge b{
  font-size:52px;
  font-weight:800;
  line-height:1;
  color:var(--green);
  font-variant-numeric:tabular-nums;
  letter-spacing:-.02em;
}
.page-head__badge span{
  font-size:12px;
  letter-spacing:.18em;
  color:var(--ink-2);
}

/* ---------- 锚点子导航 ---------- */
.anchor-nav{
  position:sticky;
  top:68px;
  z-index:40;
  background:rgba(255,255,255,.94);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
}
.anchor-nav__inner{
  display:flex;
  align-items:center;
  gap:8px;
  min-height:56px;
  overflow-x:auto;
  scrollbar-width:none;
}
.anchor-nav__inner::-webkit-scrollbar{display:none;}
.anchor-nav__label{
  font-size:12px;
  letter-spacing:.16em;
  color:var(--ink-2);
  padding-right:10px;
  border-right:1px solid var(--line);
  margin-right:6px;
  white-space:nowrap;
}
.anchor-link{
  display:inline-flex;
  align-items:center;
  height:34px;
  padding:0 14px;
  border-radius:var(--r-btn);
  font-size:14px;
  color:var(--ink-2);
  border:1px solid transparent;
  white-space:nowrap;
  transition:background var(--dur) var(--ease),color var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.anchor-link:hover{
  background:var(--mint);
  color:var(--green);
  border-color:rgba(20,85,74,.16);
}

/* ---------- 板块 ---------- */
.section{padding:88px 0;}
.section--tight{padding:64px 0;}
.section--mint{background:var(--mint);}
.section--dark{background:var(--green-dark);color:#F7F5EF;}
.section-head{
  max-width:760px;
  margin-bottom:40px;
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:12px;
  font-weight:700;
  letter-spacing:.18em;
  color:var(--green);
  padding:5px 12px;
  border-radius:var(--r-btn);
  background:rgba(20,85,74,.08);
  margin-bottom:16px;
}
.section--dark .eyebrow{background:rgba(200,241,105,.16);color:var(--lime);}
.section-title{
  font-size:28px;
  line-height:1.3;
  font-weight:700;
  color:var(--green-dark);
  letter-spacing:-.01em;
}
.section--dark .section-title{color:#fff;}
.section-desc{
  margin-top:12px;
  font-size:16px;
  color:var(--ink-2);
  line-height:1.85;
}
.section--dark .section-desc{color:rgba(247,245,239,.78);}

/* ---------- 奖励卡片矩阵 ---------- */
.reward-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:24px;
}
.reward-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:24px;
  box-shadow:var(--sh);
  display:flex;
  flex-direction:column;
  gap:12px;
  transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.reward-card:hover{
  transform:translateY(-2px);
  box-shadow:var(--sh-hover);
  border-color:rgba(20,85,74,.28);
}
.reward-card--feature{
  grid-column:span 2;
  padding:0;
  overflow:hidden;
  display:grid;
  grid-template-columns:minmax(0,1.05fr) minmax(0,1fr);
  gap:0;
}
.reward-card__media{
  position:relative;
  overflow:hidden;
  background:var(--mint);
  min-height:100%;
}
.reward-card__media img{
  width:100%;height:100%;
  object-fit:cover;
  transition:transform 420ms var(--ease);
}
.reward-card--feature:hover .reward-card__media img{transform:scale(1.03);}
.reward-card__body{
  padding:24px;
  display:flex;
  flex-direction:column;
  gap:10px;
  justify-content:center;
}
.reward-card__top{
  display:flex;
  align-items:center;
  gap:10px;
  flex-wrap:wrap;
}
.reward-card__icon{
  width:40px;height:40px;
  border-radius:12px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  background:var(--mint);
  color:var(--green);
  font-size:16px;
  flex-shrink:0;
}
.reward-card h3{
  font-size:20px;
  font-weight:700;
  color:var(--green-dark);
  line-height:1.4;
}
.reward-card p{
  font-size:15px;
  color:var(--ink-2);
  line-height:1.8;
}
.reward-card__foot{
  margin-top:auto;
  padding-top:4px;
}
.badge{
  display:inline-flex;
  align-items:center;
  gap:5px;
  height:26px;
  padding:0 11px;
  border-radius:var(--r-btn);
  font-size:12px;
  font-weight:700;
  letter-spacing:.02em;
  background:var(--mint);
  color:var(--green);
  white-space:nowrap;
}
.badge--coral{background:rgba(255,107,74,.14);color:#C93F21;}
.badge--lime{background:rgba(200,241,105,.42);color:#2C4A16;}
.badge--line{background:transparent;border:1px solid var(--line);color:var(--ink-2);}

/* ---------- 到账节奏 ---------- */
.flow-grid{
  display:grid;
  grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);
  gap:40px;
  align-items:start;
}
.flow-list{
  position:relative;
  padding-left:0;
}
.flow-item{
  position:relative;
  display:grid;
  grid-template-columns:52px minmax(0,1fr);
  gap:18px;
  padding:0 0 28px 0;
}
.flow-item:last-child{padding-bottom:0;}
.flow-item__num{
  width:52px;height:52px;
  border-radius:16px;
  background:rgba(200,241,105,.35);
  color:var(--green-dark);
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:18px;
  font-weight:800;
  font-variant-numeric:tabular-nums;
  position:relative;
  z-index:1;
}
.flow-item:not(:last-child)::before{
  content:"";
  position:absolute;
  left:25px;
  top:52px;
  bottom:0;
  width:2px;
  background:linear-gradient(180deg,rgba(20,85,74,.28),rgba(20,85,74,.08));
}
.flow-item h3{
  font-size:18px;
  font-weight:700;
  color:var(--green-dark);
  line-height:1.5;
  margin-bottom:4px;
}
.flow-item p{font-size:15px;color:var(--ink-2);line-height:1.8;}
.stat-panel{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:28px 24px;
  box-shadow:var(--sh);
  display:grid;
  gap:20px;
}
.stat-panel__title{
  font-size:13px;
  letter-spacing:.16em;
  color:var(--ink-2);
}
.stat-item + .stat-item{
  padding-top:20px;
  border-top:1px dashed var(--line);
}
.stat-item b{
  display:block;
  font-size:34px;
  font-weight:800;
  line-height:1.1;
  color:var(--green);
  font-variant-numeric:tabular-nums;
  letter-spacing:-.02em;
}
.stat-item b em{
  font-style:normal;
  font-size:15px;
  font-weight:700;
  color:var(--ink-2);
  margin-left:4px;
}
.stat-item span{
  display:block;
  margin-top:4px;
  font-size:14px;
  color:var(--ink-2);
  line-height:1.7;
}

/* ---------- 速查卡 ---------- */
.lookup{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--sh);
  overflow:hidden;
}
.lookup__head{
  padding:20px 24px;
  background:linear-gradient(90deg,rgba(20,85,74,.08),rgba(200,241,105,.16));
  border-bottom:1px solid var(--line);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
}
.lookup__head h3{
  font-size:17px;
  font-weight:700;
  color:var(--green-dark);
}
.lookup__head span{font-size:13px;color:var(--ink-2);}
.lookup__row{
  display:grid;
  grid-template-columns:220px minmax(0,1fr);
  gap:16px;
  padding:16px 24px;
  border-bottom:1px solid var(--line);
  transition:background var(--dur) var(--ease);
}
.lookup__row:last-child{border-bottom:0;}
.lookup__row:hover{background:var(--mint);}
.lookup__key{
  font-size:14px;
  font-weight:700;
  color:var(--green-dark);
  display:flex;
  align-items:center;
  gap:8px;
}
.lookup__key i{color:var(--green);font-size:13px;}
.lookup__val{
  font-size:15px;
  color:var(--ink-2);
  line-height:1.8;
}
.lookup__val strong{color:var(--green-dark);font-weight:700;}

/* ---------- 注意事项列表 ---------- */
.note-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:20px;
}
.note-item{
  display:flex;
  gap:14px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:20px 22px;
  transition:border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease),transform var(--dur) var(--ease);
}
.note-item:hover{
  border-color:rgba(20,85,74,.28);
  box-shadow:var(--sh);
  transform:translateY(-2px);
}
.note-item__mark{
  flex-shrink:0;
  width:28px;height:28px;
  border-radius:50%;
  background:var(--green);
  color:var(--lime);
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:12px;
  font-weight:800;
  margin-top:3px;
}
.note-item h3{
  font-size:16px;
  font-weight:700;
  color:var(--green-dark);
  margin-bottom:4px;
}
.note-item p{font-size:14.5px;color:var(--ink-2);line-height:1.8;}

/* ---------- FAQ ---------- */
.faq-list.accordion{
  background:transparent;
  border:0;
  margin:0;
  border-radius:var(--r-card);
  overflow:hidden;
  box-shadow:var(--sh);
  border:1px solid var(--line);
}
.faq-list .accordion-item{
  background:#fff;
  border:0;
  border-bottom:1px solid var(--line);
}
.faq-list .accordion-item:last-child{border-bottom:0;}
.faq-list .accordion-title{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  width:100%;
  padding:22px 24px;
  font-size:16px;
  font-weight:600;
  color:var(--green-dark);
  border:0;
  background:#fff;
  transition:color var(--dur) var(--ease),background var(--dur) var(--ease);
}
.faq-list .accordion-title:hover{background:#FBFAF5;color:var(--green);}
.faq-list .accordion-item.is-open .accordion-title{
  color:var(--green);
  background:#FBFAF5;
}
.faq-icon{
  position:relative;
  flex-shrink:0;
  width:26px;height:26px;
  border-radius:50%;
  background:var(--mint);
  transition:background var(--dur) var(--ease),transform var(--dur) var(--ease);
}
.faq-icon::before,.faq-icon::after{
  content:"";
  position:absolute;
  left:50%;top:50%;
  background:var(--green);
  border-radius:2px;
  transform:translate(-50%,-50%);
}
.faq-icon::before{width:12px;height:2px;}
.faq-icon::after{width:2px;height:12px;transition:opacity var(--dur) var(--ease);}
.faq-list .accordion-item.is-open .faq-icon{background:var(--lime);transform:rotate(45deg);}
.faq-list .accordion-content{
  display:none;
  padding:0 24px 22px;
  border:0;
  background:#FBFAF5;
  color:var(--ink-2);
  font-size:15px;
  line-height:1.9;
}
.faq-list .accordion-item.is-open .accordion-content{display:block;}
.faq-content-inner{max-width:820px;}

/* ---------- 互链卡 ---------- */
.link-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:20px;
}
.link-card{
  display:flex;
  flex-direction:column;
  gap:8px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:22px;
  transition:border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease),transform var(--dur) var(--ease);
}
.link-card:hover{
  border-color:var(--green);
  box-shadow:var(--sh-hover);
  transform:translateY(-2px);
}
.link-card span{
  font-size:12px;
  letter-spacing:.16em;
  color:var(--ink-2);
}
.link-card strong{
  font-size:17px;
  font-weight:700;
  color:var(--green-dark);
  line-height:1.45;
}
.link-card em{
  font-style:normal;
  font-size:14px;
  color:var(--ink-2);
  line-height:1.75;
}
.link-card i{
  margin-top:6px;
  color:var(--green);
  font-size:14px;
  transition:transform var(--dur) var(--ease);
}
.link-card:hover i{transform:translateX(4px);}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;
  overflow:hidden;
  background:var(--green-dark);
  color:#F7F5EF;
  padding:64px 0;
}
.cta-band::before{
  content:"奖励与福利";
  position:absolute;
  right:-20px;
  bottom:-40px;
  font-size:150px;
  font-weight:800;
  color:rgba(200,241,105,.06);
  letter-spacing:.02em;
  line-height:1;
  pointer-events:none;
  white-space:nowrap;
}
.cta-band__inner{
  position:relative;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
  flex-wrap:wrap;
}
.cta-band h2{
  font-size:28px;
  font-weight:800;
  line-height:1.3;
  color:#fff;
  letter-spacing:-.01em;
}
.cta-band p{
  margin-top:10px;
  font-size:15px;
  color:rgba(247,245,239,.78);
  max-width:560px;
  line-height:1.8;
}
.cta-band__actions{display:flex;gap:12px;flex-wrap:wrap;}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--green-dark);
  color:rgba(247,245,239,.82);
  padding:64px 0 0;
  font-size:14px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1fr;
  gap:40px;
  padding-bottom:48px;
}
.footer-brand{
  display:flex;
  align-items:center;
  gap:10px;
  margin-bottom:14px;
}
.footer-brand strong{
  display:block;
  font-size:16px;
  font-weight:800;
  color:#fff;
  line-height:1.2;
}
.footer-brand em{
  display:block;
  font-style:normal;
  font-size:11px;
  letter-spacing:.16em;
  color:rgba(247,245,239,.6);
}
.site-footer p{
  color:rgba(247,245,239,.66);
  line-height:1.85;
  max-width:340px;
}
.footer-domain{
  display:inline-block;
  margin-top:14px;
  padding:3px 12px;
  border:1px solid rgba(247,245,239,.24);
  border-radius:var(--r-btn);
  font-size:12px;
  letter-spacing:.06em;
  color:rgba(247,245,239,.82);
}
.footer-col h4{
  font-size:14px;
  font-weight:700;
  color:#fff;
  margin-bottom:14px;
  letter-spacing:.04em;
}
.footer-col ul{display:grid;gap:10px;}
.footer-col a{
  color:rgba(247,245,239,.7);
  font-size:14px;
  line-height:1.6;
}
.footer-col a:hover{color:var(--lime);}
.footer-bottom{
  border-top:1px solid rgba(247,245,239,.14);
  padding:20px 0 26px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  font-size:12.5px;
  color:rgba(247,245,239,.55);
}

/* ---------- 响应式 ---------- */
@media screen and (max-width:1024px){
  .container{padding:0 20px;}
  .page-head__inner{grid-template-columns:minmax(0,1fr);gap:28px;padding-top:48px;padding-bottom:48px;}
  .page-head__badge{justify-self:start;width:132px;height:132px;border-radius:22px;}
  .page-head__badge b{font-size:40px;}
  .page-head h1{font-size:32px;}
  .section{padding:64px 0;}
  .section--tight{padding:52px 0;}
  .reward-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .reward-card--feature{grid-column:span 2;grid-template-columns:minmax(0,1fr);}
  .reward-card__media{aspect-ratio:16/9;}
  .flow-grid{grid-template-columns:minmax(0,1fr);gap:28px;}
  .link-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px;}
  .nav-toggle{display:inline-flex;}
  .main-nav{
    position:fixed;
    top:0;right:0;
    width:86%;
    max-width:360px;
    height:100vh;
    height:100dvh;
    background:#fff;
    box-shadow:-16px 0 40px rgba(11,43,37,.18);
    flex-direction:column;
    align-items:stretch;
    gap:0;
    padding:84px 0 96px;
    transform:translateX(102%);
    transition:transform 280ms var(--ease);
    overflow-y:auto;
    z-index:80;
  }
  .main-nav.is-open{transform:translateX(0);}
  .nav-link{
    height:48px;
    border-radius:0;
    padding:0 24px;
    border-bottom:1px solid var(--line);
    font-size:15px;
  }
  .nav-link::after{display:none;}
  .nav-link.is-active{background:var(--mint);}
  .nav-drawer-cta{
    display:inline-flex !important;
    position:absolute;
    left:24px;right:24px;bottom:24px;
    width:calc(100% - 48px);
    margin:0;
  }
  .header-actions .btn{display:none;}
  .anchor-nav{top:68px;}
  .note-grid{grid-template-columns:minmax(0,1fr);}
  .lookup__row{grid-template-columns:160px minmax(0,1fr);}
}

@media screen and (max-width:640px){
  body{font-size:15px;line-height:1.8;}
  .container{padding:0 16px;}
  .topbar__hint{display:none;}
  .site-header__inner{min-height:62px;gap:12px;}
  .brand__mark{width:34px;height:34px;font-size:16px;border-radius:10px;}
  .brand__text strong{font-size:15px;}
  .brand__text em{font-size:10px;}
  .page-head__inner{padding-top:36px;padding-bottom:36px;}
  .page-head h1{font-size:26px;}
  .page-head__lead{font-size:15px;}
  .page-head__badge{display:none;}
  .anchor-nav{top:62px;}
  .anchor-nav__inner{min-height:50px;}
  .anchor-nav__label{display:none;}
  .section{padding:48px 0;}
  .section-title{font-size:22px;}
  .section-desc{font-size:15px;}
  .reward-grid{grid-template-columns:minmax(0,1fr);gap:16px;}
  .reward-card--feature{grid-column:span 1;}
  .reward-card{padding:18px;}
  .reward-card h3{font-size:18px;}
  .reward-card__body{padding:18px;}
  .flow-item{grid-template-columns:44px minmax(0,1fr);gap:14px;}
  .flow-item__num{width:44px;height:44px;border-radius:12px;font-size:16px;}
  .flow-item:not(:last-child)::before{left:21px;top:44px;}
  .stat-item b{font-size:28px;}
  .lookup__head{padding:16px 18px;}
  .lookup__row{grid-template-columns:minmax(0,1fr);gap:4px;padding:14px 18px;}
  .lookup__val{font-size:14.5px;}
  .link-grid{grid-template-columns:minmax(0,1fr);}
  .faq-list .accordion-title{padding:18px;font-size:15px;}
  .faq-list .accordion-content{padding:0 18px 18px;font-size:14.5px;}
  .cta-band{padding:48px 0;}
  .cta-band h2{font-size:22px;}
  .cta-band::before{font-size:88px;bottom:-20px;}
  .cta-band__actions{width:100%;}
  .cta-band__actions .btn{flex:1 1 100%;}
  .site-footer{padding-top:48px;}
  .footer-grid{grid-template-columns:minmax(0,1fr);gap:28px;padding-bottom:32px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
}

@media screen and (min-width:1280px){
  .container{max-width:1200px;}
}

/* roulang page: category4 */
:root{
  --ink:#14554A;
  --ink-deep:#0B2B25;
  --coral:#FF6B4A;
  --coral-dark:#EF5433;
  --lime:#C8F169;
  --bg:#F7F5EF;
  --card:#FFFFFF;
  --mint:#EEF3EE;
  --line:#E3E0D6;
  --text:#1A2320;
  --muted:#5D6B65;
  --r-card:16px;
  --r-img:14px;
  --r-btn:999px;
  --shadow:0 8px 24px rgba(11,43,37,.08);
  --shadow-hover:0 16px 36px rgba(11,43,37,.14);
  --t:220ms ease-out;
  --f-sans:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--f-sans);
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--bg);
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,dl,dd,figure{margin:0;padding:0;}
ul,ol{list-style:none;}
a{color:inherit;text-decoration:none;transition:color var(--t),background var(--t),border-color var(--t);}
img{max-width:100%;display:block;border-radius:var(--r-img);}
button{font-family:inherit;font-size:inherit;border:0;background:none;cursor:pointer;}
input,select,textarea{font-family:inherit;}
::selection{background:var(--lime);color:var(--ink-deep);}
:focus-visible{outline:2px solid var(--lime);outline-offset:2px;}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}

/* ============ 顶部信息条 ============ */
.top-bar{
  background:var(--ink-deep);
  color:rgba(247,245,239,.86);
  font-size:13px;
  letter-spacing:.01em;
}
.top-bar__inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  min-height:38px;
  padding:6px 0;
}
.top-bar__left{display:flex;align-items:center;gap:12px;min-width:0;}
.top-bar__domain{
  font-weight:700;
  color:#fff;
  letter-spacing:.02em;
  white-space:nowrap;
}
.top-bar__dot{width:4px;height:4px;border-radius:50%;background:var(--lime);flex:none;}
.top-bar__note{
  color:rgba(247,245,239,.72);
  overflow:hidden;
  text-overflow:ellipsis;
  white-space:nowrap;
}
.top-bar__pill{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:5px 14px;
  border-radius:var(--r-btn);
  border:1px solid rgba(200,241,105,.45);
  color:var(--lime);
  font-size:12.5px;
  white-space:nowrap;
  transition:background var(--t),color var(--t);
}
.top-bar__pill:hover{background:var(--lime);color:var(--ink-deep);}

/* ============ 主导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(255,255,255,.97);
  border-bottom:1px solid var(--line);
  transition:box-shadow var(--t),border-color var(--t);
}
.site-header.is-stuck{
  box-shadow:0 6px 20px rgba(11,43,37,.10);
  border-bottom-color:transparent;
}
.site-header__inner{
  display:flex;
  align-items:center;
  gap:24px;
  min-height:68px;
}
.brand{display:flex;align-items:center;gap:10px;flex:none;}
.brand__mark{
  width:40px;height:40px;
  display:grid;place-items:center;
  border-radius:12px;
  background:var(--ink);
  color:var(--lime);
  font-weight:800;
  font-size:18px;
  flex:none;
  box-shadow:0 4px 12px rgba(20,85,74,.24);
}
.brand__text{display:flex;flex-direction:column;line-height:1.2;}
.brand__text strong{font-size:16px;font-weight:800;letter-spacing:.01em;color:var(--ink-deep);}
.brand__text em{font-style:normal;font-size:11.5px;color:var(--muted);letter-spacing:.14em;}
.main-nav{display:flex;align-items:center;gap:2px;margin-left:auto;}
.nav-link{
  position:relative;
  display:inline-flex;
  align-items:center;
  padding:10px 14px;
  border-radius:var(--r-btn);
  font-size:15px;
  font-weight:500;
  color:var(--text);
  white-space:nowrap;
  transition:color var(--t),background var(--t);
}
.nav-link::after{
  content:"";
  position:absolute;
  left:14px;right:14px;bottom:4px;
  height:2px;
  border-radius:2px;
  background:var(--lime);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform var(--t);
}
.nav-link:hover{color:var(--ink);background:var(--mint);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{
  background:var(--mint);
  color:var(--ink);
  font-weight:700;
}
.nav-link.is-active::after{transform:scaleX(1);}
.header-actions{display:flex;align-items:center;gap:10px;flex:none;}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  border-radius:12px;
  border:1px solid var(--line);
  color:var(--ink);
  font-size:17px;
  align-items:center;
  justify-content:center;
  transition:background var(--t),border-color var(--t);
}
.nav-toggle:hover{background:var(--mint);border-color:var(--ink);}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:44px;
  padding:11px 22px;
  border-radius:var(--r-btn);
  border:1.5px solid transparent;
  font-size:15px;
  font-weight:600;
  letter-spacing:.01em;
  transition:background var(--t),color var(--t),border-color var(--t),transform var(--t),box-shadow var(--t);
}
.btn i{font-size:13px;transition:transform var(--t);}
.btn:hover i{transform:translateX(3px);}
.btn:active{transform:translateY(0);}
.btn--primary{
  background:var(--coral);
  color:#fff;
  border-color:var(--coral);
  box-shadow:0 6px 18px rgba(255,107,74,.26);
}
.btn--primary:hover{background:var(--coral-dark);border-color:var(--coral-dark);transform:translateY(-2px);box-shadow:0 12px 26px rgba(255,107,74,.32);}
.btn--ghost{
  background:transparent;
  color:var(--ink);
  border-color:var(--ink);
}
.btn--ghost:hover{background:var(--mint);transform:translateY(-2px);}
.btn--light{
  background:transparent;
  color:#F7F5EF;
  border-color:rgba(247,245,239,.55);
}
.btn--light:hover{background:rgba(247,245,239,.12);border-color:#F7F5EF;transform:translateY(-2px);}
.btn--sm{min-height:40px;padding:8px 16px;font-size:14px;}

/* ============ 页面头 ============ */
.page-head{
  position:relative;
  overflow:hidden;
  background:var(--bg);
  padding:72px 0 56px;
  border-bottom:1px solid var(--line);
}
.page-head::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:
    repeating-linear-gradient(to right,rgba(20,85,74,.06) 0 1px,transparent 1px 80px),
    repeating-linear-gradient(to bottom,rgba(20,85,74,.06) 0 1px,transparent 1px 80px);
  pointer-events:none;
}
.page-head::after{
  content:"";
  position:absolute;
  right:-120px;top:-140px;
  width:420px;height:420px;
  border-radius:50%;
  border:1px solid rgba(20,85,74,.10);
  box-shadow:0 0 0 60px rgba(20,85,74,.03);
  pointer-events:none;
}
.page-head__inner{
  position:relative;
  z-index:2;
  display:flex;
  align-items:flex-start;
  justify-content:space-between;
  gap:40px;
}
.page-head__main{max-width:760px;}
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--muted);
  margin-bottom:20px;
}
.breadcrumb a:hover{color:var(--ink);}
.breadcrumb__sep{opacity:.5;}
.breadcrumb__current{color:var(--ink);font-weight:600;}
.page-tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:5px 14px;
  border-radius:var(--r-btn);
  background:rgba(20,85,74,.08);
  color:var(--ink);
  font-size:12.5px;
  font-weight:600;
  letter-spacing:.02em;
  margin-bottom:16px;
}
.page-head h1{
  font-size:clamp(26px,4vw,40px);
  line-height:1.22;
  font-weight:800;
  color:var(--ink-deep);
  letter-spacing:-.01em;
  margin-bottom:18px;
}
.page-head h1 span{color:var(--ink);}
.page-head__lead{
  font-size:16px;
  line-height:1.9;
  color:var(--muted);
  max-width:680px;
}
.page-head__aside{flex:none;display:flex;flex-direction:column;align-items:flex-end;gap:14px;}
.serial-badge{
  width:118px;height:118px;
  border-radius:26px;
  background:var(--card);
  border:1px solid var(--line);
  box-shadow:var(--shadow);
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:2px;
}
.serial-badge strong{font-size:40px;font-weight:800;color:var(--ink);line-height:1;}
.serial-badge span{font-size:12px;color:var(--muted);letter-spacing:.18em;}
.page-head__aside p{
  font-size:13px;
  color:var(--muted);
  text-align:right;
  max-width:180px;
  line-height:1.7;
}

/* ============ 吸顶锚点目录 ============ */
.anchor-bar{
  position:sticky;
  top:68px;
  z-index:50;
  background:rgba(255,255,255,.94);
  border-bottom:1px solid var(--line);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
}
.anchor-bar__inner{
  display:flex;
  align-items:center;
  gap:10px;
  padding:12px 0;
  overflow-x:auto;
  scrollbar-width:none;
}
.anchor-bar__inner::-webkit-scrollbar{display:none;}
.anchor-bar__label{
  font-size:12.5px;
  color:var(--muted);
  letter-spacing:.1em;
  white-space:nowrap;
  padding-right:6px;
  border-right:1px solid var(--line);
  margin-right:4px;
}
.anchor-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:8px 16px;
  border-radius:var(--r-btn);
  border:1px solid var(--line);
  background:#fff;
  font-size:14px;
  color:var(--text);
  white-space:nowrap;
  transition:border-color var(--t),color var(--t),background var(--t);
}
.anchor-link:hover{border-color:var(--ink);color:var(--ink);background:var(--mint);}
.anchor-link i{font-size:11px;color:var(--ink);}

/* ============ 通用板块 ============ */
.section{padding:72px 0;}
.section--tight{padding:56px 0;}
.section--mint{background:var(--mint);}
.section-head{max-width:760px;margin-bottom:36px;}
.section-head h2{
  font-size:clamp(22px,3vw,28px);
  font-weight:700;
  color:var(--ink-deep);
  line-height:1.35;
  margin-bottom:12px;
}
.section-head p{color:var(--muted);font-size:15.5px;line-height:1.9;}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:12.5px;
  letter-spacing:.14em;
  color:var(--ink);
  font-weight:700;
  margin-bottom:14px;
  text-transform:uppercase;
}
.eyebrow::before{content:"";width:22px;height:2px;border-radius:2px;background:var(--coral);}

/* ============ 问答块 ============ */
.qa-wrap{max-width:880px;margin:0 auto;}
.qa-group{margin-bottom:56px;}
.qa-group:last-child{margin-bottom:0;}
.qa-group__head{
  display:flex;
  align-items:center;
  gap:14px;
  margin-bottom:22px;
  padding-bottom:16px;
  border-bottom:1px dashed var(--line);
}
.qa-group__idx{
  width:38px;height:38px;
  flex:none;
  border-radius:12px;
  background:var(--ink);
  color:var(--lime);
  display:grid;place-items:center;
  font-size:14px;font-weight:800;
}
.qa-group__head h2{
  font-size:clamp(20px,2.6vw,24px);
  font-weight:700;
  color:var(--ink-deep);
  line-height:1.35;
}
.qa-group__head small{
  display:block;
  font-size:13px;
  color:var(--muted);
  font-weight:400;
  margin-top:2px;
}
.qa-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:24px;
  margin-bottom:16px;
  box-shadow:var(--shadow);
  transition:box-shadow var(--t),transform var(--t),border-color var(--t);
}
.qa-card:hover{box-shadow:var(--shadow-hover);transform:translateY(-2px);border-color:rgba(20,85,74,.32);}
.qa-card h3{
  display:flex;
  gap:10px;
  align-items:flex-start;
  font-size:18px;
  font-weight:600;
  color:var(--ink-deep);
  line-height:1.6;
  margin-bottom:10px;
}
.qa-card h3 i{
  color:var(--coral);
  font-size:15px;
  margin-top:4px;
  flex:none;
}
.qa-card p{font-size:15px;color:var(--muted);line-height:1.9;}
.qa-card p + p{margin-top:10px;}
.qa-steps{
  margin-top:14px;
  counter-reset:step;
  display:grid;
  gap:10px;
}
.qa-steps li{
  position:relative;
  padding-left:34px;
  font-size:14.5px;
  color:var(--text);
  line-height:1.8;
  counter-increment:step;
}
.qa-steps li::before{
  content:counter(step);
  position:absolute;
  left:0;top:2px;
  width:22px;height:22px;
  border-radius:50%;
  background:var(--mint);
  color:var(--ink);
  font-size:12px;
  font-weight:700;
  display:grid;place-items:center;
}
.qa-note{
  margin-top:14px;
  padding:12px 16px;
  border-left:3px solid var(--lime);
  border-radius:0 10px 10px 0;
  background:var(--mint);
  font-size:14px;
  color:var(--ink);
  line-height:1.8;
}

/* ============ 速查区 ============ */
.quick{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:32px;
  align-items:stretch;
}
.quick__figure{
  position:relative;
  border-radius:var(--r-card);
  overflow:hidden;
  border:1px solid var(--line);
  background:var(--ink-deep);
  min-height:320px;
}
.quick__figure img{
  width:100%;height:100%;
  object-fit:cover;
  border-radius:0;
  opacity:.92;
  transition:transform 400ms ease-out;
}
.quick__figure:hover img{transform:scale(1.03);}
.quick__caption{
  position:absolute;
  left:20px;right:20px;bottom:20px;
  background:rgba(11,43,37,.86);
  border-radius:12px;
  padding:14px 18px;
  color:#F7F5EF;
  font-size:13.5px;
  line-height:1.75;
}
.quick__caption strong{color:var(--lime);font-weight:700;}
.quick__card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:26px;
  box-shadow:var(--shadow);
  display:flex;
  flex-direction:column;
}
.quick__card h2{
  font-size:20px;
  font-weight:700;
  color:var(--ink-deep);
  margin-bottom:6px;
}
.quick__card > p{font-size:14px;color:var(--muted);margin-bottom:16px;}
.kv-list{display:flex;flex-direction:column;}
.kv{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:13px 0;
  border-bottom:1px dashed var(--line);
  font-size:14.5px;
}
.kv:last-child{border-bottom:0;}
.kv dt{color:var(--muted);flex:none;}
.kv dd{color:var(--ink-deep);font-weight:600;text-align:right;}
.kv dd .hl{color:var(--coral);}

/* ============ 手风琴 ============ */
.faq-panel{
  max-width:880px;
  margin:0 auto;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--shadow);
  padding:8px 24px;
}
.accordion{background:transparent;border:0;margin:0;}
.accordion-item{background:transparent;border:0;border-bottom:1px solid var(--line);}
.accordion-item:last-child{border-bottom:0;}
.accordion-title{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:20px 0 !important;
  font-size:16px !important;
  font-weight:600;
  color:var(--text) !important;
  border:0 !important;
  background:transparent !important;
  line-height:1.6;
  transition:color var(--t);
}
.accordion-title::before{
  display:none !important;
}
.accordion-title:hover{color:var(--ink) !important;}
.accordion-item.is-open .accordion-title{color:var(--ink) !important;}
.acc-icon{
  position:relative;
  flex:none;
  width:26px;height:26px;
  border-radius:50%;
  border:1px solid var(--line);
  background:var(--mint);
  transition:transform var(--t),background var(--t),border-color var(--t);
}
.acc-icon::before,
.acc-icon::after{
  content:"";
  position:absolute;
  left:50%;top:50%;
  background:var(--ink);
  border-radius:2px;
  transform:translate(-50%,-50%);
  transition:opacity var(--t);
}
.acc-icon::before{width:11px;height:1.6px;}
.acc-icon::after{width:1.6px;height:11px;}
.accordion-item.is-open .acc-icon{transform:rotate(45deg);background:var(--lime);border-color:var(--lime);}
.accordion-content{
  display:none;
  padding:0 0 22px 0 !important;
  border:0 !important;
  background:transparent !important;
  color:var(--muted) !important;
  font-size:15px;
  line-height:1.9;
}
.accordion-content.is-open{display:block;}
.accordion-content p{margin:0 0 8px;}
.accordion-content p:last-child{margin-bottom:0;}

/* ============ 相关分类 ============ */
.related-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.related-card{
  display:flex;
  flex-direction:column;
  gap:10px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:24px;
  box-shadow:var(--shadow);
  transition:box-shadow var(--t),transform var(--t),border-color var(--t);
}
.related-card:hover{box-shadow:var(--shadow-hover);transform:translateY(-2px);border-color:rgba(20,85,74,.32);}
.related-card__tag{
  align-self:flex-start;
  padding:4px 12px;
  border-radius:var(--r-btn);
  background:var(--mint);
  color:var(--ink);
  font-size:12px;
  font-weight:600;
  letter-spacing:.02em;
}
.related-card h3{font-size:18px;font-weight:600;color:var(--ink-deep);line-height:1.5;}
.related-card p{font-size:14px;color:var(--muted);line-height:1.85;}
.related-card .more{
  margin-top:auto;
  display:inline-flex;
  align-items:center;
  gap:8px;
  color:var(--ink);
  font-size:14px;
  font-weight:600;
}
.related-card .more i{transition:transform var(--t);font-size:12px;}
.related-card:hover .more i{transform:translateX(3px);}

/* ============ 底部 CTA ============ */
.cta-banner{
  position:relative;
  overflow:hidden;
  background:var(--ink-deep);
  color:#F7F5EF;
  padding:72px 0;
}
.cta-banner::before,
.cta-banner::after{
  content:"";
  position:absolute;
  border-radius:50%;
  border:1px solid rgba(200,241,105,.16);
  pointer-events:none;
}
.cta-banner::before{width:360px;height:360px;right:-90px;top:-110px;}
.cta-banner::after{width:520px;height:520px;right:-180px;bottom:-260px;border-color:rgba(247,245,239,.08);}
.cta-banner__inner{
  position:relative;
  z-index:2;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:36px;
  flex-wrap:wrap;
}
.cta-banner h2{
  font-size:clamp(22px,3vw,28px);
  font-weight:700;
  line-height:1.4;
  margin-bottom:10px;
}
.cta-banner p{
  color:rgba(247,245,239,.76);
  font-size:15px;
  max-width:620px;
  line-height:1.9;
}
.cta-banner__actions{display:flex;gap:12px;flex-wrap:wrap;}
.cta-watermark{
  position:absolute;
  right:24px;
  bottom:-6px;
  font-size:clamp(48px,10vw,120px);
  font-weight:800;
  letter-spacing:.04em;
  color:rgba(247,245,239,.05);
  line-height:1;
  pointer-events:none;
  user-select:none;
  white-space:nowrap;
}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--ink-deep);
  color:rgba(247,245,239,.84);
  padding:64px 0 0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1fr;
  gap:40px;
  padding-bottom:44px;
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand strong{color:#fff;font-size:16px;font-weight:800;display:block;line-height:1.3;}
.footer-brand em{font-style:normal;font-size:11.5px;color:rgba(247,245,239,.6);letter-spacing:.14em;}
.site-footer p{font-size:14px;line-height:1.9;color:rgba(247,245,239,.68);max-width:340px;}
.footer-domain{
  display:inline-block;
  margin-top:16px;
  padding:5px 14px;
  border-radius:var(--r-btn);
  border:1px solid rgba(247,245,239,.22);
  font-size:12.5px;
  letter-spacing:.06em;
  color:rgba(247,245,239,.8);
}
.footer-col h4{
  font-size:14px;
  color:#fff;
  font-weight:700;
  letter-spacing:.04em;
  margin-bottom:16px;
}
.footer-col ul{display:grid;gap:10px;}
.footer-col a{font-size:14px;color:rgba(247,245,239,.68);}
.footer-col a:hover{color:var(--lime);}
.footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  padding:20px 0 28px;
  border-top:1px solid rgba(247,245,239,.12);
  font-size:12.5px;
  color:rgba(247,245,239,.56);
}

/* ============ 抽屉遮罩 ============ */
.nav-backdrop{
  display:none;
  position:fixed;
  inset:0;
  background:rgba(11,43,37,.44);
  z-index:54;
}
.nav-backdrop.is-open{display:block;}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .container{padding:0 24px;}
}
@media (max-width:1023px){
  .nav-toggle{display:inline-flex;}
  .main-nav{
    position:fixed;
    top:0;right:0;
    width:86%;
    max-width:360px;
    height:100vh;
    margin:0;
    padding:88px 20px 32px;
    background:#fff;
    box-shadow:-16px 0 40px rgba(11,43,37,.18);
    flex-direction:column;
    align-items:stretch;
    gap:0;
    transform:translateX(100%);
    transition:transform 260ms ease-out;
    z-index:55;
    overflow-y:auto;
  }
  .main-nav.is-open{transform:translateX(0);}
  .nav-link{
    padding:0 8px;
    min-height:48px;
    border-radius:10px;
    border-bottom:1px solid var(--line);
    font-size:15.5px;
  }
  .nav-link::after{display:none;}
  .nav-link.is-active{background:var(--mint);color:var(--ink);}
  .main-nav.is-open .nav-drawer-cta{
    display:inline-flex !important;
    margin-top:22px;
    width:100%;
  }
  .page-head{padding:56px 0 44px;}
  .page-head__inner{flex-direction:column;gap:24px;}
  .page-head__aside{flex-direction:row;align-items:center;gap:16px;}
  .page-head__aside p{text-align:left;max-width:none;}
  .serial-badge{width:88px;height:88px;border-radius:20px;}
  .serial-badge strong{font-size:30px;}
  .anchor-bar{top:68px;}
  .section{padding:56px 0;}
  .quick{grid-template-columns:1fr;}
  .related-grid{grid-template-columns:1fr 1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-banner{padding:56px 0;}
}
@media (max-width:639px){
  .container{padding:0 16px;}
  .top-bar__note{display:none;}
  .top-bar__inner{min-height:36px;}
  .site-header__inner{min-height:62px;gap:12px;}
  .brand__mark{width:36px;height:36px;font-size:16px;}
  .brand__text strong{font-size:14.5px;}
  .brand__text em{font-size:10.5px;}
  .header-actions .btn--sm{display:none;}
  .page-head{padding:40px 0 36px;}
  .page-head h1{margin-bottom:14px;}
  .page-head__lead{font-size:15px;}
  .anchor-bar{top:62px;}
  .anchor-link{padding:8px 13px;font-size:13px;}
  .section{padding:44px 0;}
  .qa-wrap{max-width:none;}
  .qa-card{padding:18px;}
  .qa-card h3{font-size:16.5px;}
  .quick__card{padding:20px;}
  .kv{flex-direction:column;align-items:flex-start;gap:4px;}
  .kv dd{text-align:left;}
  .faq-panel{padding:4px 16px;}
  .accordion-title{font-size:15px !important;padding:16px 0 !important;}
  .related-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
  .cta-banner{padding:44px 0;}
  .cta-banner__actions{width:100%;}
  .cta-banner__actions .btn{flex:1 1 auto;}
  .btn{min-height:44px;}
  .cta-watermark{display:none;}
}