/* roulang page: index */
:root{
  --ink-900:#0E1116;
  --ink-700:#2A2F38;
  --ink-500:#5F6673;
  --paper-50:#F6F3EC;
  --paper-100:#EFEAE0;
  --line:#DCD6C8;
  --brand:#FF4D1C;
  --brand-deep:#C9330A;
  --accent:#C6F24E;
  --state-ok:#2F9E6B;
  --state-warn:#E0A800;
  --state-error:#D64545;
  --state-info:#3B82F6;
  --radius-card:20px;
  --radius-md:14px;
  --radius-sm:10px;
  --radius-pill:999px;
  --shadow-hover:0 16px 40px -28px rgba(14,17,22,.35);
  --font-cn:"HarmonyOS Sans SC","PingFang SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --font-num:"Inter","Space Grotesk",ui-monospace,SFMono-Regular,Menlo,monospace;
  --container:1220px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16.5px;
  line-height:1.9;
  color:var(--ink-700);
  background:var(--paper-50);
  overflow-x:hidden;
}
body.is-locked{overflow:hidden}
h1,h2,h3,h4,h5,p,figure,blockquote,dl,dd{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none;transition:color .25s ease}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer;border:0;background:none}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px}
::selection{background:var(--accent);color:var(--ink-900)}
.container{width:100%;max-width:var(--container);margin-inline:auto;padding-inline:24px}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--ink-900);color:var(--paper-50);padding:10px 18px;border-radius:0 0 8px 0;z-index:200}
.skip-link:focus{left:0}

/* ---------- 顶部公告条 ---------- */
.topbar{background:var(--ink-900);color:rgba(246,243,236,.78);font-size:13px}
.topbar__inner{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:36px;flex-wrap:wrap}
.topbar strong{color:var(--paper-50);font-weight:600;letter-spacing:.02em}
.topbar__left{display:flex;align-items:center;gap:10px}
.dot-live{width:6px;height:6px;border-radius:50%;background:var(--accent);display:inline-block;animation:pulse 2.4s ease-in-out infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.3}}
.topbar__right{font-family:var(--font-num);letter-spacing:.08em;color:rgba(246,243,236,.6)}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:70;
  background:rgba(246,243,236,.94);
  backdrop-filter:blur(8px);
  -webkit-backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .3s ease;
}
.site-header.is-compact{box-shadow:0 10px 30px -24px rgba(14,17,22,.4)}
.header-inner{
  position:relative;
  display:grid;
  grid-template-columns:1fr auto 1fr;
  align-items:center;
  gap:24px;
  min-height:88px;
  transition:min-height .3s ease;
}
.site-header.is-compact .header-inner{min-height:68px}
.nav{display:flex;align-items:center;gap:28px}
.nav--left{justify-self:start}
.nav a{
  position:relative;
  font-size:15px;
  font-weight:600;
  color:var(--ink-700);
  padding:6px 0;
  white-space:nowrap;
}
.nav a::after{
  content:"";position:absolute;left:0;bottom:0;width:100%;height:2px;
  background:var(--brand);transform:scaleX(0);transform-origin:left;
  transition:transform .25s ease;
}
.nav a:hover{color:var(--ink-900)}
.nav a:hover::after,.nav a.is-active::after{transform:scaleX(1)}
.nav a.is-active{color:var(--ink-900)}
.brand{
  justify-self:center;
  display:inline-flex;align-items:center;gap:9px;
  font-size:20px;font-weight:900;letter-spacing:-.01em;color:var(--ink-900);
  white-space:nowrap;
}
.brand__mark{width:8px;height:8px;border-radius:3px;background:var(--accent);flex:none}
.brand__chip{
  font-family:var(--font-num);font-size:11px;font-weight:700;letter-spacing:.08em;
  background:var(--accent);color:var(--ink-900);padding:2px 7px;border-radius:5px;
  transform:translateY(-1px);
}
.header-right{justify-self:end;display:flex;align-items:center;gap:26px}
.menu-toggle{
  display:none;width:44px;height:44px;align-items:center;justify-content:center;
  border:1px solid var(--line);border-radius:12px;background:var(--paper-50);
}
.menu-toggle span{display:block;width:18px;height:2px;background:var(--ink-900);border-radius:2px;position:relative}
.menu-toggle span::before,.menu-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink-900);border-radius:2px;
}
.menu-toggle span::before{top:-6px}
.menu-toggle span::after{top:6px}

/* 移动抽屉 */
.nav-drawer{
  position:fixed;inset:0;z-index:90;
  background:var(--paper-50);
  transform:translateY(-100%);
  transition:transform .42s cubic-bezier(.2,.7,.2,1);
  display:flex;flex-direction:column;
  padding:20px 24px 32px;overflow-y:auto;
}
.nav-drawer.is-open{transform:translateY(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:28px}
.drawer-close{
  width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  display:grid;place-items:center;font-size:20px;color:var(--ink-900);background:var(--paper-50);
}
.drawer-nav{display:flex;flex-direction:column;gap:4px;margin-bottom:32px}
.drawer-nav a{
  font-size:20px;font-weight:800;color:var(--ink-900);
  padding:16px 0;border-bottom:1px solid var(--line);
}
.drawer-nav a.is-active{color:var(--brand)}
.drawer-foot{color:var(--ink-500);font-size:13px;line-height:1.8}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-weight:700;text-align:center;cursor:pointer;border:1px solid transparent;
  transition:background .28s cubic-bezier(.2,.7,.2,1),color .28s,border-color .28s,transform .28s,box-shadow .28s,filter .28s;
  white-space:nowrap;
}
.btn--primary{background:var(--brand);color:#fff;border-radius:var(--radius-pill);height:52px;padding:0 30px;font-size:15px}
.btn--primary:hover{background:var(--brand-deep);transform:translateY(-1px)}
.btn--primary:active{transform:translateY(0);filter:brightness(.95)}
.btn--secondary{background:transparent;color:var(--ink-900);border:1px solid var(--ink-900);border-radius:8px;height:52px;padding:0 28px;font-size:15px}
.btn--secondary:hover{background:var(--ink-900);color:var(--paper-50)}
.btn--ghost{background:transparent;border:1px solid rgba(246,243,236,.4);color:var(--paper-50);border-radius:8px;height:48px;padding:0 24px;font-size:15px}
.btn--ghost:hover{border-color:var(--accent);color:var(--accent)}
.btn--sm{height:40px;padding:0 18px;font-size:14px}
.btn--lg{height:60px;padding:0 34px;font-size:16px}
.btn--block{width:100%}
.btn--text{
  display:inline-flex;align-items:center;gap:6px;background:none;border:none;
  color:var(--brand);font-weight:700;font-size:15px;padding:0;
}
.btn--text .arrow{transition:transform .25s ease;display:inline-block}
.btn--text:hover{color:var(--brand-deep)}
.btn--text:hover .arrow{transform:translateX(4px)}
.btn:disabled,.btn.is-disabled{opacity:.6;cursor:not-allowed;transform:none}

/* ---------- 徽章 / 标签 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;font-weight:700;letter-spacing:.02em;
  padding:4px 12px;border-radius:var(--radius-pill);
  border:1px solid var(--line);background:var(--paper-50);color:var(--ink-500);
}
.badge--accent{background:var(--accent);border-color:var(--accent);color:var(--ink-900)}
.badge--brand{background:rgba(255,77,28,.1);border-color:rgba(255,77,28,.28);color:var(--brand-deep)}

/* ---------- 通用区块 ---------- */
.section{padding:96px 0;position:relative}
.section--tint{background:var(--paper-100)}
.section--dark{background:var(--ink-900);color:var(--paper-50)}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:24px;
  padding-bottom:22px;border-bottom:1px solid var(--line);margin-bottom:56px;position:relative;
}
.section-head::before{content:"";position:absolute;left:0;bottom:-1px;width:64px;height:2px;background:var(--brand)}
.section-title{display:flex;align-items:baseline;gap:18px;flex-wrap:wrap}
.section-title h2{
  font-size:clamp(26px,3vw,38px);font-weight:800;line-height:1.2;
  letter-spacing:-.01em;color:var(--ink-900);
}
.section-title p{font-size:14px;color:var(--ink-500)}
.section-index{
  font-family:var(--font-num);font-size:40px;font-weight:900;line-height:1;
  color:transparent;-webkit-text-stroke:1.2px var(--line);
}
.section--dark .section-head{border-color:rgba(246,243,236,.18)}
.section--dark .section-title h2{color:var(--paper-50)}
.section--dark .section-title p{color:rgba(246,243,236,.6)}
.section--dark .section-index{-webkit-text-stroke:1.2px rgba(246,243,236,.28)}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--font-num);font-size:12px;font-weight:700;
  letter-spacing:.18em;text-transform:uppercase;color:var(--ink-500);
}
.eyebrow::before{content:"";width:24px;height:2px;background:var(--brand);display:inline-block}
.section--dark .eyebrow{color:rgba(246,243,236,.66)}

/* ---------- 动效 ---------- */
.js .reveal{opacity:0;transform:translateY(12px)}
.js .reveal.is-visible{
  opacity:1;transform:none;
  transition:opacity .6s ease,transform .6s cubic-bezier(.2,.7,.2,1);
}
@media (prefers-reduced-motion:reduce){
  .js .reveal{opacity:1;transform:none;transition:none}
  .dot-live{animation:none}
  html{scroll-behavior:auto}
}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;padding:80px 0 88px}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.55;
  background-image:linear-gradient(rgba(14,17,22,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(14,17,22,.05) 1px,transparent 1px);
  background-size:80px 80px;
  -webkit-mask-image:radial-gradient(ellipse at 78% 12%,#000 0%,transparent 62%);
  mask-image:radial-gradient(ellipse at 78% 12%,#000 0%,transparent 62%);
}
.hero > *{position:relative;z-index:1}
.hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:56px;align-items:center}
.hero h1{
  font-size:clamp(34px,5vw,64px);font-weight:900;line-height:1.08;
  letter-spacing:-.02em;color:var(--ink-900);margin:20px 0 22px;
}
.hero__sub{font-size:17px;color:var(--ink-500);max-width:560px;line-height:1.85}
.hero__actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px}
.hero-facts{display:flex;flex-wrap:wrap;gap:36px;margin-top:42px;padding-top:28px;border-top:1px solid var(--line)}
.hero-fact{position:relative;padding-left:14px}
.hero-fact::before{content:"";position:absolute;left:0;top:6px;width:2px;height:30px;background:var(--brand)}
.hero-fact dt{font-size:13px;color:var(--ink-500)}
.hero-fact dd{margin:2px 0 0;font-size:15px;font-weight:700;color:var(--ink-900)}
.hero-visual{position:relative}
.hero-visual img{
  width:100%;aspect-ratio:16/11;object-fit:cover;border-radius:24px;
  position:relative;z-index:2;border:1px solid var(--line);
}
.hero-visual::after{
  content:"";position:absolute;inset:0;transform:translate(14px,14px);
  border:2px solid var(--accent);border-radius:24px;z-index:1;
}
.hero-badge{
  position:absolute;left:20px;bottom:20px;z-index:3;
  background:var(--accent);color:var(--ink-900);
  font-size:13px;font-weight:800;letter-spacing:.02em;
  padding:8px 16px;border-radius:var(--radius-pill);
}

/* ---------- 数据条 ---------- */
.stats{background:var(--ink-900);color:var(--paper-50);padding:40px 0}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr)}
.stat{padding:6px 28px;border-left:1px solid rgba(246,243,236,.16)}
.stat:first-child{border-left:0;padding-left:0}
.stat__num{font-family:var(--font-num);font-size:32px;font-weight:800;color:var(--accent);letter-spacing:.02em;line-height:1.2}
.stat__label{font-size:13px;color:rgba(246,243,236,.66);margin-top:6px}

/* ---------- 时间线 ---------- */
.timeline{display:grid;grid-template-columns:300px 1fr;gap:64px;align-items:start}
.timeline-aside{position:sticky;top:120px}
.timeline-aside h3{font-size:22px;font-weight:800;color:var(--ink-900);margin:14px 0 12px}
.timeline-aside p{font-size:15px;color:var(--ink-500);line-height:1.9}
.timeline-note{
  margin-top:22px;padding:16px 18px;border-radius:var(--radius-md);
  background:var(--paper-100);border:1px solid var(--line);font-size:14px;color:var(--ink-700);
}
.timeline-item{position:relative;padding:0 0 42px 68px}
.timeline-item:last-child{padding-bottom:0}
.timeline-item::before{content:"";position:absolute;left:15px;top:36px;bottom:0;width:2px;background:var(--line)}
.timeline-item:last-child::before{display:none}
.timeline-dot{
  position:absolute;left:0;top:0;width:32px;height:32px;border-radius:50%;
  border:2px solid var(--brand);background:var(--paper-50);
  display:grid;place-items:center;
  font-family:var(--font-num);font-size:12px;font-weight:800;color:var(--brand);
  transition:background .3s ease,color .3s ease,transform .3s ease,box-shadow .3s ease;
}
.timeline-item:hover .timeline-dot{background:var(--brand);color:#fff;transform:scale(1.08);box-shadow:0 0 0 6px rgba(255,77,28,.12)}
.tl-label{font-family:var(--font-num);font-size:12px;font-weight:700;letter-spacing:.14em;color:var(--ink-500);text-transform:uppercase}
.timeline-title{font-size:17px;font-weight:800;color:var(--ink-900);margin:8px 0 6px;transition:color .25s ease}
.timeline-item:hover .timeline-title{color:var(--brand-deep)}
.timeline-desc{font-size:15px;color:var(--ink-500);line-height:1.85;max-width:680px}
.timeline-tag{margin-top:12px;display:inline-flex}

/* ---------- 亮点交错 ---------- */
.feature-row{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center}
.feature-row + .feature-row{margin-top:88px}
.feature-row--reverse .feature-media{order:2}
.feature-media{position:relative}
.feature-media img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--radius-card);border:1px solid var(--line)}
.feature-index{
  font-family:var(--font-num);font-size:72px;font-weight:900;line-height:1;
  color:transparent;-webkit-text-stroke:1.4px var(--line);display:block;margin-bottom:10px;
}
.feature-body h3{font-size:clamp(20px,2.2vw,26px);font-weight:800;color:var(--ink-900);margin:12px 0 14px;line-height:1.35}
.feature-body p{font-size:15.5px;color:var(--ink-500);line-height:1.9;margin-bottom:20px;max-width:520px}
.feature-list{display:flex;flex-direction:column;gap:10px;margin-bottom:24px}
.feature-list li{position:relative;padding-left:20px;font-size:15px;color:var(--ink-700)}
.feature-list li::before{
  content:"";position:absolute;left:0;top:12px;width:8px;height:8px;
  background:var(--accent);border-radius:2px;
}

/* ---------- 对比卡 ---------- */
.tier-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:start}
.tier-card{
  background:var(--paper-50);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:32px 28px 28px;display:flex;flex-direction:column;
  transition:transform .35s cubic-bezier(.2,.7,.2,1),border-color .35s,box-shadow .35s;
  position:relative;
}
.tier-card:hover{transform:translateY(-4px);border-color:var(--brand);box-shadow:var(--shadow-hover)}
.tier-card--featured{border-top:2px solid var(--brand);margin-top:-16px;box-shadow:var(--shadow-hover)}
.tier-card--featured:hover{transform:translateY(-6px)}
.tier-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:18px}
.tier-name{font-size:19px;font-weight:800;color:var(--ink-900)}
.tier-code{font-family:var(--font-num);font-size:12px;font-weight:700;letter-spacing:.08em;color:var(--ink-500)}
.tier-flag{
  position:absolute;top:-13px;left:24px;
  background:var(--accent);color:var(--ink-900);
  font-size:12px;font-weight:800;padding:4px 12px;border-radius:var(--radius-pill);
}
.tier-price{display:flex;align-items:baseline;gap:8px;margin-bottom:6px}
.tier-price strong{font-family:var(--font-num);font-size:34px;font-weight:800;color:var(--ink-900);letter-spacing:-.02em}
.tier-price span{font-size:13px;color:var(--ink-500)}
.tier-divider{height:1px;background:var(--line);margin:20px 0 6px}
.tier-list{display:flex;flex-direction:column;margin-bottom:24px}
.tier-list li{
  display:flex;gap:12px;align-items:flex-start;
  font-size:15px;color:var(--ink-700);
  padding:11px 0;border-bottom:1px dashed var(--line);
}
.tier-list li:last-child{border-bottom:0}
.check{position:relative;flex:none;width:18px;height:18px;margin-top:5px;border-radius:5px;background:rgba(255,77,28,.12)}
.check::after{
  content:"";position:absolute;left:5px;top:5px;width:7px;height:4px;
  border-left:2px solid var(--brand);border-bottom:2px solid var(--brand);
  transform:rotate(-45deg);
}
.check--off{background:var(--paper-100)}
.check--off::after{left:5px;top:8px;width:8px;height:0;border:0;border-top:2px solid var(--line);transform:none}
.tier-toggle{display:none;margin:0 0 18px;justify-content:center}
.tier-foot{margin-top:auto}

/* ---------- 最新信息 ---------- */
.news-grid{display:grid;grid-template-columns:7fr 5fr;gap:40px;align-items:start}
.news-feature{
  display:flex;flex-direction:column;overflow:hidden;
  background:var(--paper-50);border:1px solid var(--line);border-radius:var(--radius-card);
  transition:transform .35s cubic-bezier(.2,.7,.2,1),border-color .35s,box-shadow .35s;
}
.news-feature:hover{transform:translateY(-4px);border-color:var(--brand);box-shadow:var(--shadow-hover)}
.news-feature__media{overflow:hidden;display:block}
.news-feature__media img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .35s cubic-bezier(.2,.7,.2,1)}
.news-feature:hover .news-feature__media img{transform:scale(1.04)}
.news-feature__body{padding:28px}
.news-feature__title{font-size:21px;font-weight:800;line-height:1.45;color:var(--ink-900);margin:14px 0 12px}
.news-feature__title a:hover{color:var(--brand-deep)}
.news-feature__summary{font-size:15px;color:var(--ink-500);line-height:1.85;margin-bottom:18px;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.news-meta{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--ink-500);flex-wrap:wrap}
.news-list{display:flex;flex-direction:column}
.news-item{
  display:grid;grid-template-columns:112px 1fr;gap:18px;align-items:center;
  padding:18px 12px;border-bottom:1px solid var(--line);border-radius:12px;
  transition:background .3s ease;
}
.news-item:first-child{padding-top:0}
.news-item:hover{background:var(--paper-100)}
.news-thumb{display:block;overflow:hidden;border-radius:12px}
.news-item img{width:112px;height:80px;object-fit:cover;border-radius:12px;transition:transform .35s cubic-bezier(.2,.7,.2,1)}
.news-item:hover img{transform:scale(1.05)}
.news-item__title{font-size:16px;font-weight:700;line-height:1.55;color:var(--ink-900);margin-top:6px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-item__title a:hover{color:var(--brand-deep)}
.empty-state{
  grid-column:1 / -1;min-height:220px;border:1px dashed var(--line);border-radius:var(--radius-card);
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:16px;
  text-align:center;color:var(--ink-500);font-size:15px;padding:32px;
}

/* ---------- FAQ ---------- */
.faq-layout{display:grid;grid-template-columns:4fr 8fr;gap:64px;align-items:start}
.faq-aside{position:sticky;top:120px}
.faq-aside h2{font-size:clamp(24px,2.8vw,34px);font-weight:800;color:var(--ink-900);line-height:1.25;margin:14px 0 14px}
.faq-aside p{font-size:14.5px;color:var(--ink-500);line-height:1.9}
.accordion{border-top:1px solid var(--line)}
.accordion-item{border-bottom:1px solid var(--line)}
.accordion-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:24px;
  padding:22px 0;font-size:17px;font-weight:700;color:var(--ink-900);
  transition:color .25s ease;
}
.accordion-item summary::-webkit-details-marker{display:none}
.accordion-item summary::after{
  content:"+";font-family:var(--font-num);font-size:24px;font-weight:400;
  color:var(--ink-500);line-height:1;transition:color .3s ease;
}
.accordion-item[open] summary::after{content:"–";color:var(--brand)}
.accordion-item summary:hover{color:var(--brand-deep)}
.accordion-panel{padding:0 0 24px;font-size:15.5px;color:var(--ink-500);line-height:1.9;max-width:760px}

/* ---------- CTA / 表单 ---------- */
.cta-grid{display:grid;grid-template-columns:5fr 7fr;gap:64px;align-items:start}
.cta-copy h2{font-size:clamp(26px,3vw,38px);font-weight:800;line-height:1.25;color:var(--paper-50);margin:16px 0 18px}
.cta-copy p{font-size:15.5px;color:rgba(246,243,236,.7);line-height:1.9;max-width:480px}
.cta-notes{display:flex;flex-direction:column;gap:12px;margin:28px 0 26px}
.cta-notes li{display:flex;gap:10px;align-items:flex-start;font-size:15px;color:rgba(246,243,236,.86)}
.cta-notes li::before{
  content:"";flex:none;width:16px;height:5px;margin-top:11px;
  border-left:2px solid var(--accent);border-bottom:2px solid var(--accent);
  transform:rotate(-45deg);transform-origin:center;
}
.cta-contact{font-size:14px;color:rgba(246,243,236,.6);border-top:1px solid rgba(246,243,236,.16);padding-top:20px}
.cta-contact strong{color:var(--accent);font-family:var(--font-num);letter-spacing:.04em}
.form-card{background:var(--paper-50);border-radius:24px;padding:32px;color:var(--ink-700)}
.form-card h3{font-size:19px;font-weight:800;color:var(--ink-900);margin-bottom:6px}
.form-card > p{font-size:13.5px;color:var(--ink-500);margin-bottom:22px}
.field{margin-bottom:18px}
.field__label{display:block;font-size:13px;font-weight:700;color:var(--ink-700);margin-bottom:8px;letter-spacing:.02em}
.field__input{
  width:100%;height:48px;border:1px solid var(--line);border-radius:var(--radius-sm);
  background:#fff;padding:0 14px;font-size:15px;transition:box-shadow .25s,border-color .25s,background .25s;
}
textarea.field__input{height:auto;min-height:112px;padding:12px 14px;resize:vertical;line-height:1.8}
.field__input:focus{outline:none;border-color:transparent;box-shadow:0 0 0 2px var(--accent);background:var(--paper-100)}
.field__hint{font-size:12.5px;color:var(--ink-500);margin-top:6px}
.field__error{font-size:13px;color:var(--state-error);margin-top:6px;display:none}
.field.has-error .field__input{border-color:var(--state-error)}
.field.has-error .field__error{display:block}
.checkbox-row{display:flex;gap:10px;align-items:flex-start;font-size:13px;color:var(--ink-500);margin:6px 0 20px;line-height:1.7}
.checkbox-row input{width:16px;height:16px;margin-top:4px;accent-color:var(--brand);flex:none}
.checkbox-row a{color:var(--brand);text-decoration:underline;text-underline-offset:3px}
.form-success{
  display:none;align-items:center;gap:10px;
  background:rgba(47,158,107,.12);border:1px solid rgba(47,158,107,.35);
  color:#1F7A52;border-radius:var(--radius-sm);padding:12px 16px;font-size:14px;margin-bottom:18px;
}
.form-success.is-visible{display:flex}
.form-success::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--state-ok);flex:none}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink-900);color:rgba(246,243,236,.72);border-top:1px solid rgba(198,242,78,.5)}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.6fr;gap:48px;padding:72px 0 48px}
.footer-brand{display:inline-flex;align-items:center;gap:9px;font-size:19px;font-weight:900;color:var(--paper-50);letter-spacing:-.01em;margin-bottom:16px}
.footer-brand__chip{font-family:var(--font-num);font-size:11px;font-weight:700;letter-spacing:.08em;background:var(--accent);color:var(--ink-900);padding:2px 7px;border-radius:5px}
.footer-desc{font-size:14px;line-height:1.9;color:rgba(246,243,236,.6);max-width:320px}
.socials{display:flex;gap:10px;margin-top:20px}
.socials a{
  width:36px;height:36px;border-radius:50%;border:1px solid rgba(246,243,236,.24);
  display:grid;place-items:center;font-size:12px;font-weight:700;color:rgba(246,243,236,.75);
  transition:border-color .25s,color .25s,transform .25s;
}
.socials a:hover{border-color:var(--accent);color:var(--accent);transform:translateY(-2px)}
.footer-col h4{font-size:15px;font-weight:800;color:var(--paper-50);margin-bottom:18px;letter-spacing:.02em}
.footer-col ul{display:flex;flex-direction:column;gap:11px}
.footer-col a{font-size:14px;color:rgba(246,243,236,.66)}
.footer-col a:hover{color:var(--accent)}
.footer-form{display:flex;gap:10px;margin-top:16px}
.footer-form input{
  flex:1;min-width:0;height:46px;border-radius:var(--radius-sm);
  border:1px solid rgba(246,243,236,.24);background:rgba(246,243,236,.06);
  color:var(--paper-50);padding:0 14px;font-size:14px;transition:border-color .25s,box-shadow .25s;
}
.footer-form input::placeholder{color:rgba(246,243,236,.42)}
.footer-form input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 2px rgba(198,242,78,.3)}
.footer-note{font-size:12.5px;color:rgba(246,243,236,.45);margin-top:12px;line-height:1.8}
.footer-bottom{
  border-top:1px solid rgba(246,243,236,.14);padding:22px 0 40px;
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(246,243,236,.55);
}
.footer-bottom a:hover{color:var(--accent)}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .header-inner{gap:18px}
  .nav{gap:20px}
}
@media (max-width:1024px){
  .container{padding-inline:20px}
  .hero{padding:64px 0 72px}
  .hero-grid{grid-template-columns:1fr;gap:48px}
  .hero__sub{max-width:none}
  .stats-grid{grid-template-columns:repeat(2,1fr);gap:24px 0}
  .stat{padding:6px 20px}
  .stat:nth-child(odd){border-left:0;padding-left:0}
  .timeline{grid-template-columns:1fr;gap:36px}
  .timeline-aside{position:static}
  .tier-grid{grid-template-columns:1fr;gap:20px}
  .tier-card--featured{margin-top:0}
  .news-grid{grid-template-columns:1fr}
  .faq-layout{grid-template-columns:1fr;gap:32px}
  .faq-aside{position:static}
  .cta-grid{grid-template-columns:1fr;gap:40px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:40px;padding:56px 0 36px}
  .section{padding:72px 0}
  .section-head{margin-bottom:40px}
}
@media (max-width:900px){
  .nav--left,.nav--right{display:none}
  .header-inner{grid-template-columns:1fr auto 1fr;gap:12px;min-height:68px}
  .menu-toggle{display:inline-flex;grid-column:1;grid-row:1;justify-self:start}
  .brand{grid-column:2;grid-row:1;justify-self:center;font-size:17px}
  .header-right{grid-column:3;grid-row:1;justify-self:end}
  .header-right .nav{display:none}
}
@media (max-width:768px){
  body{font-size:16px}
  .feature-row{grid-template-columns:1fr;gap:28px}
  .feature-row + .feature-row{margin-top:64px}
  .feature-row--reverse .feature-media{order:0}
  .feature-media img{aspect-ratio:16/10}
  .section{padding:56px 0}
  .section-head{flex-direction:column;align-items:flex-start;gap:14px;padding-bottom:18px;margin-bottom:32px}
  .section-title{gap:12px}
  .section-index{font-size:32px}
  .hero-facts{gap:22px;margin-top:32px}
  .timeline-item{padding-left:56px}
  .timeline-item::before{left:13px}
  .timeline-dot{width:28px;height:28px;font-size:11px}
  .tier-list li:nth-child(n+6){display:none}
  .tier-card.is-expanded .tier-list li:nth-child(n+6){display:flex}
  .tier-toggle{display:inline-flex}
  .news-item{grid-template-columns:88px 1fr;gap:14px;padding:16px 0}
  .news-item img{width:88px;height:64px}
  .news-feature__body{padding:22px}
  .form-card{padding:20px}
  .form-card .btn--primary{position:sticky;bottom:0}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .footer-desc{max-width:none}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:520px){
  .hero h1{font-size:clamp(28px,8.4vw,40px)}
  .hero__actions .btn{width:100%}
  .hero-visual::after{transform:translate(8px,8px)}
  .hero-badge{left:12px;bottom:12px;font-size:12px;padding:6px 12px}
  .stat__num{font-size:26px}
  .timeline-note{font-size:13px}
  .feature-index{font-size:52px}
  .footer-form{flex-direction:column}
  .footer-form .btn{width:100%}
}

/* roulang page: article */
/* ============ 设计变量 ============ */
:root{
  --ink-900:#0E1116;
  --ink-700:#2A2F38;
  --ink-500:#5F6673;
  --paper-50:#F6F3EC;
  --paper-100:#EFEAE0;
  --line:#DCD6C8;
  --brand:#FF4D1C;
  --brand-deep:#C9330A;
  --accent:#C6F24E;
  --state-ok:#2F9E6B;
  --state-warn:#E0A800;
  --state-error:#D64545;
  --state-info:#3B82F6;

  --r-card:20px;
  --r-img:16px;
  --r-btn:999px;
  --r-input:10px;

  --shadow-hover:0 16px 40px -28px rgba(14,17,22,.35);
  --ease:cubic-bezier(.2,.7,.2,1);
  --container:1220px;

  --font-cn:"HarmonyOS Sans SC","PingFang SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --font-num:"Inter","Space Grotesk","Segoe UI",system-ui,sans-serif;
}

/* ============ reset / base ============ */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.9;
  color:var(--ink-700);
  background:var(--paper-50);
  overflow-x:hidden;
}
body.is-locked{overflow:hidden}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button,input,textarea,select{font:inherit;color:inherit}
button{cursor:pointer;border:0;background:none}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,h5{margin:0;color:var(--ink-900);font-weight:800;line-height:1.2}
p{margin:0}
figure{margin:0}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
::selection{background:var(--accent);color:var(--ink-900)}

.skip-link{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.skip-link:focus{position:fixed;top:12px;left:12px;width:auto;height:auto;clip:auto;padding:10px 18px;background:var(--ink-900);color:var(--paper-50);border-radius:8px;z-index:300}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.section{padding:96px 0}
.section--tint{background:var(--paper-100)}
.section--dark{background:var(--ink-900);color:var(--paper-50)}
.section--dark h2,.section--dark h3,.section--dark h4{color:var(--paper-50)}

/* ============ 阅读进度条 ============ */
.read-progress{position:fixed;top:0;left:0;right:0;height:3px;background:transparent;z-index:120;pointer-events:none}
.read-progress__bar{height:100%;width:0;background:var(--brand);transition:width .12s linear}

/* ============ 顶部公告条 ============ */
.topbar{background:var(--ink-900);color:rgba(246,243,236,.82);font-size:13px;max-height:36px;overflow:hidden;transition:max-height .3s var(--ease)}
.topbar__inner{display:flex;align-items:center;gap:12px;height:36px}
.topbar__dot{width:8px;height:8px;border-radius:50%;background:var(--accent);flex:0 0 auto;animation:blink 2.6s ease-in-out infinite}
@keyframes blink{0%,100%{opacity:1}50%{opacity:.35}}
.topbar__link{margin-left:auto;color:var(--accent);font-weight:600}
.topbar__link:hover{text-decoration:underline;text-underline-offset:3px}

/* ============ 页头 ============ */
.site-header{position:sticky;top:0;z-index:90;background:rgba(246,243,236,.92);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border-bottom:1px solid transparent;transition:border-color .3s var(--ease),box-shadow .3s var(--ease)}
.site-header.is-scrolled{border-bottom-color:var(--line)}
.site-header.is-scrolled .topbar{max-height:0}
.header-inner{display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:24px;min-height:88px;transition:min-height .3s var(--ease)}
.site-header.is-scrolled .header-inner{min-height:68px}

.brand{display:inline-flex;align-items:center;gap:10px;font-size:20px;font-weight:900;letter-spacing:-.01em;color:var(--ink-900);white-space:nowrap}
.brand__mark{width:10px;height:10px;border-radius:3px;background:var(--brand);box-shadow:0 0 0 4px rgba(255,77,28,.14);flex:0 0 auto}
.brand__text{line-height:1}
.brand__chip{font-family:var(--font-num);font-size:11px;font-weight:700;letter-spacing:.14em;background:var(--accent);color:var(--ink-900);border-radius:999px;padding:3px 8px;line-height:1.4}

.nav{display:flex;align-items:center;gap:28px}
.nav--left{justify-content:flex-end}
.nav--right{justify-content:flex-start}
.nav a{position:relative;font-size:15px;font-weight:600;color:var(--ink-700);padding:6px 0;transition:color .25s var(--ease)}
.nav a::after{content:"";position:absolute;left:0;bottom:0;width:0;height:2px;background:var(--brand);transition:width .25s var(--ease)}
.nav a:hover{color:var(--ink-900)}
.nav a:hover::after{width:100%}
.nav a.is-active{color:var(--ink-900)}
.nav a.is-active::after{width:100%}
.nav a.btn::after{display:none}
.nav a.btn:hover{color:var(--paper-50)}

.nav-toggle,.nav-login-icon{display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);align-items:center;justify-content:center;color:var(--ink-900);background:var(--paper-50)}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink-900);position:relative}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink-900)}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}

/* 移动端抽屉 */
.nav-drawer{position:fixed;inset:0 0 auto 0;background:var(--paper-50);z-index:130;transform:translateY(-102%);transition:transform .38s var(--ease);padding:22px 24px 32px;display:flex;flex-direction:column;gap:20px;max-height:100vh;overflow-y:auto}
.nav-drawer.is-open{transform:translateY(0);box-shadow:0 30px 60px -30px rgba(14,17,22,.4)}
.nav-drawer__head{display:flex;align-items:center;justify-content:space-between}
.drawer-close{width:44px;height:44px;border-radius:12px;border:1px solid var(--line);font-size:22px;line-height:1;color:var(--ink-900)}
.nav-drawer__links{display:flex;flex-direction:column;gap:6px}
.nav-drawer__links a{font-size:20px;font-weight:800;color:var(--ink-900);padding:12px 0;border-bottom:1px solid var(--line);opacity:0;transform:translateY(8px);transition:opacity .3s var(--ease),transform .3s var(--ease)}
.nav-drawer.is-open .nav-drawer__links a{opacity:1;transform:none}
.nav-drawer.is-open .nav-drawer__links a:nth-child(1){transition-delay:.04s}
.nav-drawer.is-open .nav-drawer__links a:nth-child(2){transition-delay:.08s}
.nav-drawer.is-open .nav-drawer__links a:nth-child(3){transition-delay:.12s}

/* ============ 按钮 ============ */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-weight:700;font-size:15px;border-radius:var(--r-btn);padding:0 30px;height:52px;border:1px solid transparent;transition:transform .25s var(--ease),background-color .25s var(--ease),color .25s var(--ease),border-color .25s var(--ease),box-shadow .25s var(--ease);white-space:nowrap}
.btn--sm{height:40px;padding:0 20px;font-size:14px}
.btn--lg{height:60px;padding:0 36px;font-size:16px}
.btn--primary{background:var(--brand);color:#FFF8F4}
.btn--primary:hover{background:var(--brand-deep);transform:translateY(-1px);box-shadow:var(--shadow-hover)}
.btn--primary:active{transform:translateY(0);filter:brightness(.95)}
.btn--secondary{background:transparent;border-color:var(--ink-900);color:var(--ink-900);border-radius:8px}
.btn--secondary:hover{background:var(--ink-900);color:var(--paper-50)}
.btn--dark-ghost{background:transparent;border-color:rgba(246,243,236,.4);color:var(--paper-50)}
.btn--dark-ghost:hover{border-color:var(--accent);color:var(--accent)}
.btn--text{height:auto;padding:0;font-weight:700;color:var(--brand-deep);border-radius:0}
.btn--text .arrow{transition:transform .25s var(--ease);display:inline-block}
.btn--text:hover .arrow{transform:translateX(4px)}
.btn.is-disabled,.btn[disabled]{opacity:.55;pointer-events:none}

/* ============ 徽章 / 标签 ============ */
.badge{display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:700;letter-spacing:.04em;padding:5px 12px;border-radius:999px;background:var(--paper-100);border:1px solid var(--line);color:var(--ink-700)}
.badge--accent{background:var(--accent);border-color:var(--accent);color:var(--ink-900)}
.badge--outline{background:transparent}
.badge--dark{background:rgba(246,243,236,.1);border-color:rgba(246,243,236,.24);color:rgba(246,243,236,.86)}

.eyebrow{display:inline-flex;align-items:center;gap:10px;font-family:var(--font-num);font-size:12px;font-weight:700;letter-spacing:.18em;text-transform:uppercase;color:var(--ink-500)}
.eyebrow::before{content:"";width:24px;height:2px;background:var(--brand)}
.eyebrow--light{color:rgba(246,243,236,.66)}

/* ============ 面包屑 ============ */
.crumbs{padding:26px 0 0}
.crumbs ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--ink-500)}
.crumbs li::after{content:"/";margin-left:8px;color:var(--line)}
.crumbs li:last-child::after{display:none}
.crumbs a{color:var(--ink-500)}
.crumbs a:hover{color:var(--brand-deep);text-decoration:underline;text-underline-offset:3px}
.crumbs li[aria-current="page"]{color:var(--ink-900);font-weight:700;max-width:420px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ============ 文章页头 ============ */
.article-hero{padding:26px 0 44px;border-bottom:1px solid var(--line);background:
  radial-gradient(circle at 88% 8%,rgba(198,242,78,.22),transparent 42%),
  var(--paper-50)}
.article-hero__grid{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:32px;align-items:end;margin-top:26px}
.article-hero h1{font-size:clamp(28px,4vw,44px);font-weight:900;letter-spacing:-.02em;line-height:1.18;margin:16px 0 18px;max-width:840px}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:12px;font-size:13px;color:var(--ink-500)}
.meta-dot{width:4px;height:4px;border-radius:50%;background:var(--line)}
.meta-row time{font-family:var(--font-num);letter-spacing:.04em}

.share{display:flex;align-items:center;gap:10px}
.share-label{font-size:13px;color:var(--ink-500);margin-right:2px}
.share-btn{width:36px;height:36px;border-radius:50%;border:1px solid var(--line);display:inline-flex;align-items:center;justify-content:center;color:var(--ink-700);background:var(--paper-50);transition:border-color .25s var(--ease),color .25s var(--ease),transform .25s var(--ease)}
.share-btn:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-2px)}
.share-btn.is-done{border-color:var(--state-ok);color:var(--state-ok)}
.share-btn svg{width:16px;height:16px;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}

/* ============ 文章布局 ============ */
.article-layout{display:grid;grid-template-columns:minmax(0,780px) 300px;gap:64px;justify-content:center;align-items:start;padding:56px 0 0}
.article-main{min-width:0}

.article-figure{position:relative;margin-bottom:34px}
.article-figure__frame{position:absolute;top:14px;left:14px;right:-14px;bottom:-14px;border:2px solid var(--accent);border-radius:22px;z-index:0}
.article-figure__img{position:relative;z-index:1;width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:var(--r-img);border:1px solid var(--line);background:var(--paper-100)}
.article-figure figcaption{position:relative;z-index:1;margin-top:26px;font-size:13px;color:var(--ink-500);text-align:center}

.article-body{max-width:760px;font-size:17px;line-height:1.95;color:var(--ink-700);overflow-wrap:break-word}
.article-body p{margin:0 0 22px}
.article-body h2{position:relative;font-size:24px;font-weight:800;line-height:1.35;color:var(--ink-900);margin:48px 0 16px;padding-left:16px}
.article-body h2::before{content:"";position:absolute;left:0;top:.42em;width:2px;height:20px;background:var(--brand)}
.article-body h3{font-size:20px;font-weight:800;color:var(--ink-900);margin:32px 0 12px}
.article-body h4{font-size:17px;font-weight:800;color:var(--ink-900);margin:24px 0 10px}
.article-body ul,.article-body ol{margin:0 0 22px;padding-left:22px}
.article-body ul{list-style:square}
.article-body ol{list-style:decimal}
.article-body li{margin-bottom:10px}
.article-body li::marker{color:var(--brand)}
.article-body ol li::marker{font-family:var(--font-num);font-weight:700}
.article-body blockquote{margin:28px 0;padding:20px 24px;background:var(--paper-100);border-left:3px solid var(--brand);border-radius:0 14px 14px 0;color:var(--ink-700)}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:var(--r-img);margin:28px 0}
.article-body a{color:var(--brand-deep);text-decoration:underline;text-underline-offset:3px}
.article-body a:hover{color:var(--ink-900)}
.article-body strong{color:var(--ink-900);font-weight:800}
.article-body table{width:100%;border-collapse:collapse;margin:28px 0;font-size:15px}
.article-body th,.article-body td{border:1px solid var(--line);padding:12px 16px;text-align:left;vertical-align:top}
.article-body th{background:var(--paper-100);color:var(--ink-900);font-weight:800}
.article-body code{background:var(--paper-100);border-radius:6px;padding:2px 6px;font-size:15px;color:var(--ink-900)}
.article-body hr{border:0;border-top:1px solid var(--line);margin:36px 0}
.article-body figcaption{font-size:13px;color:var(--ink-500);text-align:center;margin-top:-16px;margin-bottom:24px}

/* 空态 */
.empty-state{border:1px dashed var(--line);border-radius:var(--r-card);background:var(--paper-100);padding:64px 24px;text-align:center}
.empty-state__mark{width:52px;height:52px;margin:0 auto 18px;border-radius:50%;border:1px solid var(--line);display:flex;align-items:center;justify-content:center;color:var(--ink-500);font-family:var(--font-num);font-weight:700}
.empty-state h3{font-size:20px;margin-bottom:10px}
.empty-state p{color:var(--ink-500);font-size:15px;margin-bottom:22px}

/* 文末 */
.article-tail{margin-top:56px;display:flex;flex-direction:column;gap:34px}
.tag-group{display:flex;flex-wrap:wrap;gap:10px;align-items:center}
.tag-group__title{font-size:13px;font-weight:700;color:var(--ink-500);letter-spacing:.08em}
.tag{padding:6px 14px;border-radius:999px;border:1px solid var(--line);font-size:13px;color:var(--ink-700);transition:border-color .25s var(--ease),color .25s var(--ease)}
.tag:hover{border-color:var(--brand);color:var(--brand-deep)}

.author-card{display:flex;gap:20px;align-items:center;background:var(--paper-100);border-radius:var(--r-card);padding:24px;border:1px solid var(--line)}
.author-card__avatar{width:64px;height:64px;border-radius:50%;overflow:hidden;flex:0 0 auto;border:1px solid var(--line)}
.author-card__avatar img{width:100%;height:100%;object-fit:cover}
.author-card h4{font-size:16px;margin-bottom:6px}
.author-card p{font-size:14px;color:var(--ink-500);line-height:1.8}

.pager{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.pager a{display:flex;flex-direction:column;gap:8px;border:1px solid var(--line);border-radius:var(--r-card);padding:20px 22px;background:var(--paper-50);transition:transform .3s var(--ease),border-color .3s var(--ease),box-shadow .3s var(--ease)}
.pager a:hover{transform:translateY(-4px);border-color:var(--brand);box-shadow:var(--shadow-hover)}
.pager span{font-size:12px;letter-spacing:.14em;color:var(--ink-500);font-family:var(--font-num);text-transform:uppercase}
.pager strong{font-size:16px;color:var(--ink-900);font-weight:800;line-height:1.5}
.pager a:last-child{text-align:right;align-items:flex-end}

.back-link{display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:700;color:var(--brand-deep)}
.back-link:hover{color:var(--ink-900)}
.back-link:hover .arrow{transform:translateX(-4px)}
.back-link .arrow{transition:transform .25s var(--ease);display:inline-block}

/* 侧栏 */
.article-side{position:sticky;top:110px;display:flex;flex-direction:column;gap:20px}
.side-card{background:var(--paper-50);border:1px solid var(--line);border-radius:var(--r-card);padding:22px}
.side-card h3{font-size:15px;font-weight:800;margin-bottom:14px;display:flex;align-items:center;gap:8px}
.side-card h3::before{content:"";width:8px;height:8px;border-radius:2px;background:var(--brand)}
.side-card ul{display:flex;flex-direction:column;gap:10px}
.side-card li{font-size:14px;color:var(--ink-700);line-height:1.7}
.side-card li a{display:flex;gap:8px;color:var(--ink-700);padding:8px 0;border-bottom:1px solid var(--line);transition:color .25s var(--ease),padding-left .25s var(--ease)}
.side-card li:last-child a{border-bottom:0}
.side-card li a:hover{color:var(--brand-deep);padding-left:4px}
.side-card--dark{background:var(--ink-900);border-color:var(--ink-900);color:rgba(246,243,236,.72)}
.side-card--dark h3{color:var(--paper-50)}
.side-card--dark p{font-size:14px;line-height:1.8;color:rgba(246,243,236,.72)}
.side-card--dark .btn{margin-top:16px;width:100%}

/* ============ 相关推荐 ============ */
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px}
.section-head__left{display:flex;align-items:baseline;gap:18px}
.section-index{font-family:var(--font-num);font-size:40px;font-weight:900;color:var(--line);line-height:1}
.section-head h2{font-size:clamp(26px,3vw,38px);font-weight:800}
.head-line{flex:1;height:1px;background:var(--line);margin-bottom:12px}
.section-link{font-size:14px;font-weight:700;color:var(--brand-deep);white-space:nowrap}
.section-link:hover .arrow{transform:translateX(4px)}
.section-link .arrow{display:inline-block;transition:transform .25s var(--ease)}

.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.card{background:var(--paper-50);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;display:flex;flex-direction:column;transition:transform .35s var(--ease),border-color .35s var(--ease),box-shadow .35s var(--ease)}
.card:hover{transform:translateY(-4px);border-color:var(--brand);box-shadow:var(--shadow-hover)}
.card__media{overflow:hidden;aspect-ratio:16/9;background:var(--paper-100)}
.card__media img{width:100%;height:100%;object-fit:cover;transition:transform .35s var(--ease)}
.card:hover .card__media img{transform:scale(1.04)}
.card__body{padding:22px;display:flex;flex-direction:column;gap:12px;flex:1}
.card__meta{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--ink-500)}
.card__title{font-size:18px;font-weight:800;line-height:1.5;color:var(--ink-900)}
.card:hover .card__title{color:var(--brand-deep)}
.card__desc{font-size:14px;color:var(--ink-500);line-height:1.8}

/* ============ CTA ============ */
.cta-band{padding:88px 0}
.cta-band__inner{display:grid;grid-template-columns:1.1fr .9fr;gap:56px;align-items:center}
.cta-band h2{font-size:clamp(26px,3vw,38px);font-weight:900;letter-spacing:-.01em;margin:18px 0 24px;line-height:1.25}
.cta-list{display:flex;flex-direction:column;gap:12px}
.cta-list li{display:flex;align-items:flex-start;gap:10px;font-size:15px;color:rgba(246,243,236,.78);line-height:1.7}
.cta-list li::before{content:"";width:14px;height:14px;flex:0 0 auto;margin-top:6px;border-radius:4px;background:var(--accent)}
.cta-panel{background:var(--paper-50);border-radius:24px;padding:34px;color:var(--ink-700);border:1px solid rgba(14,17,22,.08)}
.cta-panel h3{font-size:20px;margin-bottom:10px}
.cta-panel p{font-size:14px;color:var(--ink-500);line-height:1.8;margin-bottom:22px}
.cta-panel .btn{width:100%}
.cta-panel .btn+.btn{margin-top:12px}
.cta-contact{margin-top:18px;font-size:13px;color:var(--ink-500);text-align:center}

/* ============ 页脚 ============ */
.site-footer{background:var(--ink-900);color:var(--paper-50);padding:72px 0 30px;border-top:1px solid var(--accent)}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:44px}
.footer-brand{display:inline-flex;align-items:center;gap:10px;font-size:20px;font-weight:900;color:var(--paper-50);white-space:nowrap}
.footer-brand .brand__mark{background:var(--brand)}
.footer-brand__chip{font-family:var(--font-num);font-size:11px;font-weight:700;letter-spacing:.14em;background:var(--accent);color:var(--ink-900);border-radius:999px;padding:3px 8px;line-height:1.4}
.footer-desc{margin:16px 0 20px;font-size:14px;line-height:1.9;color:rgba(246,243,236,.66);max-width:340px}
.socials{display:flex;gap:10px}
.socials a{width:36px;height:36px;border-radius:50%;border:1px solid rgba(246,243,236,.3);display:inline-flex;align-items:center;justify-content:center;font-size:12px;color:rgba(246,243,236,.8);transition:border-color .25s var(--ease),color .25s var(--ease)}
.socials a:hover{border-color:var(--accent);color:var(--accent)}
.footer-col h4{font-size:15px;font-weight:800;color:var(--paper-50);margin-bottom:16px}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col li a{font-size:14px;color:rgba(246,243,236,.66);transition:color .25s var(--ease)}
.footer-col li a:hover{color:var(--accent)}
.footer-note{font-size:13px;color:rgba(246,243,236,.5);line-height:1.8;margin-top:12px}
.footer-form{display:flex;gap:10px;margin-top:14px}
.footer-form input{flex:1;min-width:0;background:rgba(246,243,236,.06);border:1px solid rgba(246,243,236,.22);border-radius:var(--r-input);padding:0 14px;height:40px;color:var(--paper-50);font-size:14px}
.footer-form input::placeholder{color:rgba(246,243,236,.42)}
.footer-form input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 2px rgba(198,242,78,.35)}
.footer-bottom{display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;margin-top:52px;padding-top:22px;border-top:1px solid rgba(246,243,236,.14);font-size:13px;color:rgba(246,243,236,.6)}

/* ============ 入场动效 ============ */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .6s var(--ease),transform .6s var(--ease)}
.reveal.is-in{opacity:1;transform:none}

/* ============ 响应式 ============ */
@media (max-width:1200px){
  .container{padding:0 20px}
  .article-layout{gap:48px}
}
@media (max-width:1024px){
  .section{padding:72px 0}
  .article-layout{grid-template-columns:minmax(0,1fr);gap:40px;padding-top:44px}
  .article-side{position:static;flex-direction:row;flex-wrap:wrap}
  .article-side>*{flex:1 1 240px}
  .related-grid{grid-template-columns:repeat(2,1fr)}
  .cta-band__inner{grid-template-columns:1fr;gap:36px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
}
@media (max-width:900px){
  .nav--left,.nav--right{display:none}
  .nav-toggle{display:inline-flex}
  .header-inner{grid-template-columns:44px 1fr 44px;gap:12px}
  .nav-login-icon{display:inline-flex}
  .brand{justify-self:center;font-size:17px}
  .brand__chip{display:none}
  .topbar{font-size:12px}
  .topbar__link{display:none}
}
@media (max-width:768px){
  .section{padding:56px 0}
  .article-hero__grid{grid-template-columns:1fr;gap:20px}
  .share{justify-content:flex-start}
  .article-body{font-size:16px;line-height:1.9}
  .article-body h2{font-size:21px;margin-top:36px}
  .article-body table{display:block;overflow-x:auto;white-space:nowrap}
  .pager{grid-template-columns:1fr}
  .pager a:last-child{text-align:left;align-items:flex-start}
  .related-grid{grid-template-columns:1fr}
  .section-head{flex-direction:column;align-items:flex-start;gap:14px}
  .cta-band{padding:64px 0}
  .cta-panel{padding:24px}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .footer-bottom{justify-content:center;text-align:center}
}
@media (max-width:520px){
  .container{padding:0 20px}
  .article-hero h1{font-size:26px}
  .article-figure__frame{inset:10px 10px -10px 10px}
  .btn{width:100%}
  .btn--text,.share-btn,.pager a .arrow{width:auto}
  .section-index{font-size:34px}
  .crumbs li[aria-current="page"]{max-width:200px}
  .author-card{flex-direction:column;align-items:flex-start;text-align:left}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
  html{scroll-behavior:auto}
}

/* roulang page: category1 */
/* ===================== 设计令牌 ===================== */
:root{
  --ink-900:#0E1116;
  --ink-700:#2A2F38;
  --ink-500:#5F6673;
  --paper-50:#F6F3EC;
  --paper-100:#EFEAE0;
  --line:#DCD6C8;
  --brand:#FF4D1C;
  --brand-deep:#C9330A;
  --accent:#C6F24E;
  --state-ok:#2F9E6B;
  --state-warn:#E0A800;
  --state-error:#D64545;
  --state-info:#3B82F6;

  --r-card:20px;
  --r-img:16px;
  --r-input:10px;
  --r-pill:999px;

  --shadow-hover:0 16px 40px -28px rgba(14,17,22,.35);
  --ease:cubic-bezier(.2,.7,.2,1);

  --wrap:1220px;
  --gap:24px;
  --section-y:96px;
}

/* ===================== 基础 reset ===================== */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"HarmonyOS Sans SC","PingFang SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.9;
  color:var(--ink-700);
  background:var(--paper-50);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body.is-locked{overflow:hidden}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
button{background:none;border:0;cursor:pointer;padding:0}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p,figure{margin:0}
table{border-collapse:collapse;width:100%}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px}
.skip-link{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

/* ===================== 容器与排版 ===================== */
.container{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 24px}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-size:12px;font-weight:700;letter-spacing:.18em;text-transform:uppercase;
  color:var(--brand);
  font-variant-numeric:tabular-nums;
}
.eyebrow::before{content:"";width:24px;height:2px;background:var(--brand);display:inline-block}
.eyebrow--light{color:var(--accent)}
.eyebrow--light::before{background:var(--accent)}
.lede{font-size:17px;line-height:1.95;color:var(--ink-700);max-width:680px}
.text-sm{font-size:13px;line-height:1.7;color:var(--ink-500)}

/* ===================== 顶部公告条 ===================== */
.topbar{
  background:var(--ink-900);
  color:rgba(246,243,236,.86);
  font-size:13px;
  height:32px;
  overflow:hidden;
  transition:height .3s var(--ease),opacity .3s var(--ease);
}
.topbar__inner{
  height:32px;display:flex;align-items:center;gap:12px;
}
.topbar__dot{
  width:7px;height:7px;border-radius:50%;background:var(--accent);
  flex:0 0 7px;animation:pulseOnce 1.6s var(--ease) 1;
}
@keyframes pulseOnce{
  0%{transform:scale(.6);opacity:.2}
  60%{transform:scale(1.35);opacity:1}
  100%{transform:scale(1);opacity:1}
}
.topbar a{margin-left:auto;color:var(--accent);font-weight:600}
.topbar a:hover{text-decoration:underline}

/* ===================== 页头 ===================== */
.site-header{position:sticky;top:0;z-index:80}
.topbar{position:relative;z-index:2}
.site-header.is-scrolled .topbar{height:0;opacity:0}
.header-bar{
  background:rgba(246,243,236,.92);
  backdrop-filter:blur(8px);
  border-bottom:1px solid transparent;
  transition:border-color .3s var(--ease),background .3s var(--ease);
}
.site-header.is-scrolled .header-bar{border-bottom-color:var(--line)}
.header-inner{
  display:grid;
  grid-template-columns:1fr auto 1fr;
  align-items:center;
  gap:16px;
  height:88px;
  transition:height .3s var(--ease);
}
.site-header.is-scrolled .header-inner{height:68px}
.header-left{display:flex;align-items:center;gap:20px;justify-content:flex-end}
.header-right{display:flex;align-items:center;gap:22px;justify-content:flex-start}
.nav{display:flex;align-items:center;gap:26px}
.nav a{
  position:relative;
  font-size:15px;font-weight:600;color:var(--ink-700);
  padding:6px 0;transition:color .25s var(--ease);
}
.nav a::after{
  content:"";position:absolute;left:0;bottom:0;width:100%;height:2px;
  background:var(--brand);transform:scaleX(0);transform-origin:left;
  transition:transform .25s var(--ease);
}
.nav a:hover{color:var(--ink-900)}
.nav a:hover::after,.nav a.is-active::after{transform:scaleX(1)}
.nav a.is-active{color:var(--ink-900)}

.brand{
  display:inline-flex;align-items:center;gap:10px;
  font-size:21px;font-weight:900;letter-spacing:-.01em;color:var(--ink-900);
  white-space:nowrap;
}
.brand__mark{
  width:8px;height:8px;border-radius:2px;background:var(--accent);
  flex:0 0 8px;box-shadow:0 0 0 3px rgba(198,242,78,.28);
}

.nav-toggle{
  display:none;
  width:44px;height:44px;border-radius:12px;
  border:1px solid var(--line);
  align-items:center;justify-content:center;flex-direction:column;gap:5px;
  transition:border-color .25s var(--ease),background .25s var(--ease);
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink-900);transition:transform .3s var(--ease),opacity .2s}
.nav-toggle:hover{border-color:var(--ink-900);background:var(--paper-100)}
.nav-toggle.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle.is-open span:nth-child(2){opacity:0}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* 抽屉 */
.nav-drawer{
  position:fixed;inset:0;z-index:70;
  background:var(--paper-50);
  transform:translateY(-100%);
  transition:transform .42s var(--ease);
  padding:96px 24px 32px;
  display:flex;flex-direction:column;
  visibility:hidden;
}
.nav-drawer.is-open{transform:translateY(0);visibility:visible}
.nav-drawer__list{display:flex;flex-direction:column;gap:6px;flex:1}
.nav-drawer__list a{
  font-size:20px;font-weight:800;color:var(--ink-900);
  padding:14px 0;border-bottom:1px solid var(--line);
  opacity:0;transform:translateY(10px);
  transition:opacity .35s var(--ease),transform .35s var(--ease),color .25s;
}
.nav-drawer.is-open .nav-drawer__list a{opacity:1;transform:none}
.nav-drawer__list a:nth-child(1){transition-delay:.06s}
.nav-drawer__list a:nth-child(2){transition-delay:.10s}
.nav-drawer__list a:nth-child(3){transition-delay:.14s}
.nav-drawer__list a:nth-child(4){transition-delay:.18s}
.nav-drawer__list a:hover{color:var(--brand)}
.nav-drawer__foot{padding-top:20px}
.nav-drawer__foot .btn{width:100%}

/* ===================== 按钮 ===================== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:15px;font-weight:700;line-height:1;
  border-radius:var(--r-pill);
  transition:background .25s var(--ease),color .25s var(--ease),border-color .25s var(--ease),transform .25s var(--ease),box-shadow .25s var(--ease);
  white-space:nowrap;
  cursor:pointer;
}
.btn--sm{height:40px;padding:0 20px;font-size:14px}
.btn--md{height:52px;padding:0 30px}
.btn--lg{height:60px;padding:0 36px;font-size:16px}
.btn--primary{background:var(--brand);color:var(--paper-50)}
.btn--primary:hover{background:var(--brand-deep);transform:translateY(-1px)}
.btn--primary:active{transform:translateY(0);filter:brightness(.95)}
.btn--ghost{background:transparent;color:var(--ink-900);border:1px solid var(--ink-900);border-radius:8px}
.btn--ghost:hover{background:var(--ink-900);color:var(--paper-50)}
.btn--dark-ghost{background:transparent;color:var(--paper-50);border:1px solid rgba(246,243,236,.4);border-radius:8px}
.btn--dark-ghost:hover{border-color:var(--accent);color:var(--accent)}
.btn--text{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:700;color:var(--ink-900);
  border-bottom:1px solid transparent;
  transition:color .25s var(--ease),border-color .25s var(--ease);
}
.btn--text .arrow{transition:transform .3s var(--ease)}
.btn--text:hover{color:var(--brand);border-bottom-color:var(--brand)}
.btn--text:hover .arrow{transform:translateX(4px)}
.btn.is-disabled,.btn[disabled]{opacity:.55;pointer-events:none}

/* ===================== 徽章 ===================== */
.badge{
  display:inline-flex;align-items:center;
  font-size:12px;font-weight:700;letter-spacing:.04em;
  padding:4px 12px;border-radius:var(--r-pill);
  background:var(--paper-100);color:var(--ink-700);
  border:1px solid var(--line);
}
.badge--accent{background:var(--accent);color:var(--ink-900);border-color:var(--accent)}
.badge--outline{background:transparent;border-color:var(--ink-900);color:var(--ink-900)}

/* ===================== 页头横幅 ===================== */
.page-banner{
  position:relative;
  min-height:240px;
  display:flex;align-items:flex-end;
  overflow:hidden;
  background:var(--ink-900);
}
.page-banner__bg{
  position:absolute;inset:0;
  background-size:cover;background-position:center;
  opacity:.62;
}
.page-banner::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(14,17,22,.35) 0%,rgba(14,17,22,.78) 100%);
}
.page-banner__inner{
  position:relative;z-index:2;
  padding-top:72px;padding-bottom:38px;
  color:var(--paper-50);
}
.page-banner h1{
  font-size:clamp(30px,4.6vw,48px);
  font-weight:900;line-height:1.14;letter-spacing:-.02em;
  margin:16px 0 18px;
  max-width:820px;
  color:var(--paper-50);
}
.breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:rgba(246,243,236,.7)}
.breadcrumb li+li::before{content:"/";margin-right:8px;color:rgba(246,243,236,.4)}
.breadcrumb a{color:rgba(246,243,236,.7);transition:color .25s}
.breadcrumb a:hover{color:var(--accent)}
.breadcrumb [aria-current="page"]{color:var(--paper-50);font-weight:600}
.page-banner__count{
  position:absolute;
  left:24px;bottom:-14px;
  transform:translateY(50%);
  z-index:3;
}
.page-banner__meta{
  display:flex;align-items:center;gap:14px;flex-wrap:wrap;
  margin-top:22px;
}
.page-banner__meta .badge--accent{position:static;transform:none}

/* ===================== 板块外壳 ===================== */
.section{padding:var(--section-y) 0}
.section--tint{background:var(--paper-100)}
.section--dark{background:var(--ink-900);color:var(--paper-50)}
.section--dark .lede,.section--dark .text-sm{color:rgba(246,243,236,.66)}
.section-head{
  display:flex;align-items:flex-end;gap:20px;flex-wrap:wrap;
  padding-bottom:22px;margin-bottom:44px;
  border-bottom:1px solid var(--line);
}
.section--dark .section-head{border-bottom-color:rgba(246,243,236,.16)}
.section-index{
  font-size:40px;font-weight:900;line-height:1;
  color:var(--line);
  font-variant-numeric:tabular-nums;
  letter-spacing:.01em;
}
.section--dark .section-index{color:rgba(246,243,236,.28)}
.section-head h2{
  font-size:clamp(26px,3vw,38px);
  font-weight:800;line-height:1.2;letter-spacing:-.01em;
  color:var(--ink-900);
}
.section--dark .section-head h2{color:var(--paper-50)}
.section-head .section-note{font-size:13px;color:var(--ink-500);max-width:420px}
.section-head .section-link{margin-left:auto}

/* ===================== 概览与筛选 ===================== */
.intro{padding:64px 0 0}
.intro__grid{display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:start}
.intro__side{
  border-left:1px solid var(--line);
  padding-left:28px;
}
.intro__side dl{display:flex;flex-direction:column;gap:16px;margin:0}
.intro__side dt{font-size:12px;letter-spacing:.16em;color:var(--ink-500);text-transform:uppercase}
.intro__side dd{margin:0;font-size:15px;font-weight:700;color:var(--ink-900)}
.tabs{
  display:flex;gap:10px;flex-wrap:nowrap;overflow-x:auto;
  margin-top:44px;padding-bottom:6px;
  scrollbar-width:thin;
}
.tabs::-webkit-scrollbar{height:4px}
.tabs::-webkit-scrollbar-thumb{background:var(--line);border-radius:4px}
.tab{
  flex:0 0 auto;
  padding:9px 18px;border-radius:var(--r-pill);
  border:1px solid var(--line);
  font-size:14px;font-weight:600;color:var(--ink-700);
  background:transparent;
  transition:background .25s var(--ease),color .25s var(--ease),border-color .25s var(--ease);
}
.tab:hover{border-color:var(--ink-900);color:var(--ink-900)}
.tab.is-active{background:var(--ink-900);color:var(--paper-50);border-color:var(--ink-900)}

/* ===================== 数据条 ===================== */
.stat-bar{background:var(--ink-900);color:var(--paper-50)}
.stat-bar__inner{display:grid;grid-template-columns:repeat(4,1fr)}
.stat{
  padding:34px 24px;
  border-left:1px solid rgba(246,243,236,.14);
}
.stat:first-child{border-left:0}
.stat__num{
  display:block;
  font-size:32px;font-weight:800;line-height:1.1;
  color:var(--accent);letter-spacing:.02em;
  font-variant-numeric:tabular-nums;
}
.stat__label{font-size:13px;color:rgba(246,243,236,.66);margin-top:6px;display:block}

/* ===================== 卡片栅格 ===================== */
.card-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:28px;
}
.card{
  position:relative;
  background:var(--paper-50);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
  transition:transform .35s var(--ease),border-color .35s var(--ease),box-shadow .35s var(--ease);
}
.card:hover{
  transform:translateY(-4px);
  border-color:var(--brand);
  box-shadow:var(--shadow-hover);
}
.card__link{display:block;height:100%}
.card__media{
  position:relative;
  aspect-ratio:16/9;
  overflow:hidden;
  background:var(--paper-100);
}
.card__media img{
  width:100%;height:100%;object-fit:cover;
  transition:transform .45s var(--ease);
}
.card:hover .card__media img{transform:scale(1.04)}
.card__body{padding:22px 22px 24px;display:flex;flex-direction:column;gap:12px}
.card__title{
  font-size:20px;font-weight:800;line-height:1.4;color:var(--ink-900);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card__desc{
  font-size:15px;line-height:1.85;color:var(--ink-500);
  min-height:80px;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.card__meta{
  margin-top:auto;
  padding-top:14px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  font-size:13px;color:var(--ink-500);
}
.card__meta .arrow{font-weight:700;color:var(--ink-900);transition:transform .3s var(--ease),color .3s var(--ease)}
.card:hover .card__meta .arrow{transform:translateX(4px);color:var(--brand)}
@media (min-width:1024px){
  .card-grid > .card:nth-child(3n+2){margin-top:-12px;margin-bottom:12px}
}

/* ===================== 分页 ===================== */
.pagination{
  display:flex;align-items:center;justify-content:center;gap:10px;
  margin-top:56px;flex-wrap:wrap;
}
.page-link{
  display:inline-flex;align-items:center;justify-content:center;
  min-width:44px;height:44px;padding:0 16px;
  border-radius:var(--r-pill);
  border:1px solid var(--line);
  font-size:14px;font-weight:600;color:var(--ink-700);
  transition:border-color .25s var(--ease),background .25s var(--ease),color .25s var(--ease);
}
.page-link:hover{border-color:var(--ink-900);color:var(--ink-900)}
.page-link.is-current{background:var(--brand);border-color:var(--brand);color:var(--paper-50)}

/* ===================== 自检流程 ===================== */
.flow{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:32px;
}
.flow__step{
  position:relative;
  padding:28px 26px 30px;
  background:var(--paper-50);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  transition:border-color .35s var(--ease),transform .35s var(--ease);
}
.flow__step:hover{border-color:var(--brand);transform:translateY(-4px)}
.flow__num{
  display:block;
  font-size:34px;font-weight:900;line-height:1;
  color:var(--line);
  font-variant-numeric:tabular-nums;
  margin-bottom:14px;
}
.flow__step h3{font-size:19px;font-weight:800;color:var(--ink-900);margin-bottom:10px}
.flow__step p{font-size:15px;line-height:1.85;color:var(--ink-500)}

/* ===================== FAQ ===================== */
.faq-grid{display:grid;grid-template-columns:4fr 8fr;gap:56px;align-items:start}
.faq-aside{position:sticky;top:120px}
.faq-aside h2{
  font-size:clamp(26px,3vw,38px);font-weight:800;line-height:1.2;
  color:var(--ink-900);margin:14px 0 12px;
}
.accordion{border-top:1px solid var(--line)}
.accordion-item{border-bottom:1px solid var(--line)}
.accordion-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 0;
  font-size:17px;font-weight:700;color:var(--ink-900);
  cursor:pointer;list-style:none;
  transition:color .25s var(--ease);
}
.accordion-item summary::-webkit-details-marker{display:none}
.accordion-item summary:hover{color:var(--brand)}
.acc-icon{position:relative;flex:0 0 24px;width:24px;height:24px}
.acc-icon::before,.acc-icon::after{
  content:"";position:absolute;left:50%;top:50%;
  background:var(--ink-900);
  transition:transform .3s var(--ease),background .3s var(--ease);
}
.acc-icon::before{width:16px;height:2px;transform:translate(-50%,-50%)}
.acc-icon::after{width:2px;height:16px;transform:translate(-50%,-50%)}
.accordion-item[open] .acc-icon::before{background:var(--brand)}
.accordion-item[open] .acc-icon::after{transform:translate(-50%,-50%) scaleY(0)}
.accordion-panel{padding:0 0 22px}
.accordion-panel p{font-size:15px;line-height:1.9;color:var(--ink-500);max-width:680px}

/* ===================== CTA ===================== */
.cta-band{background:var(--ink-900);color:var(--paper-50);padding:72px 0}
.cta-band__inner{
  display:flex;align-items:center;justify-content:space-between;gap:40px;flex-wrap:wrap;
}
.cta-band h2{
  font-size:clamp(24px,2.8vw,34px);font-weight:800;line-height:1.25;
  color:var(--paper-50);margin:14px 0 12px;max-width:620px;
}
.cta-band p{font-size:15px;color:rgba(246,243,236,.66);max-width:560px}
.cta-band__actions{display:flex;gap:14px;flex-wrap:wrap}

/* ===================== 页脚 ===================== */
.site-footer{
  background:var(--ink-900);
  color:var(--paper-50);
  border-top:1px solid var(--accent);
  padding:72px 0 0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.3fr;
  gap:44px;
  padding-bottom:52px;
}
.footer-brand{
  display:inline-flex;align-items:center;gap:10px;
  font-size:20px;font-weight:900;color:var(--paper-50);
}
.footer-brand__chip{
  margin-left:8px;
  font-size:11px;font-weight:800;letter-spacing:.08em;
  background:var(--accent);color:var(--ink-900);
  padding:3px 8px;border-radius:6px;
}
.footer-desc{
  font-size:14px;line-height:1.85;color:rgba(246,243,236,.62);
  margin-top:16px;max-width:320px;
}
.socials{display:flex;gap:10px;margin-top:22px}
.socials a{
  display:inline-flex;align-items:center;justify-content:center;
  width:36px;height:36px;border-radius:50%;
  border:1px solid rgba(246,243,236,.28);
  font-size:12px;font-weight:700;color:rgba(246,243,236,.8);
  transition:border-color .25s var(--ease),color .25s var(--ease),background .25s var(--ease);
}
.socials a:hover{border-color:var(--accent);color:var(--accent);background:rgba(198,242,78,.08)}
.footer-col h4{
  font-size:14px;font-weight:800;color:var(--paper-50);
  letter-spacing:.04em;margin-bottom:18px;
}
.footer-col ul{display:flex;flex-direction:column;gap:12px}
.footer-col a{
  font-size:14px;color:rgba(246,243,236,.62);
  transition:color .25s var(--ease);
}
.footer-col a:hover{color:var(--accent)}
.footer-note{font-size:12px;color:rgba(246,243,236,.5);margin-top:12px;line-height:1.7}
.footer-form{display:flex;gap:10px;margin-top:14px}
.footer-form input{
  flex:1;min-width:0;height:40px;padding:0 14px;
  background:rgba(246,243,236,.06);
  border:1px solid rgba(246,243,236,.24);
  border-radius:var(--r-input);
  color:var(--paper-50);font-size:14px;
  transition:border-color .25s var(--ease),background .25s var(--ease);
}
.footer-form input::placeholder{color:rgba(246,243,236,.42)}
.footer-form input:focus{outline:none;border-color:var(--accent);background:rgba(198,242,78,.08)}
.footer-form input:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding:22px 0 28px;
  border-top:1px solid rgba(246,243,236,.14);
  font-size:13px;color:rgba(246,243,236,.6);
}

/* ===================== 入场动效 ===================== */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .6s var(--ease),transform .6s var(--ease)}
.reveal.is-in{opacity:1;transform:none}
.card-grid .reveal:nth-child(2){transition-delay:.06s}
.card-grid .reveal:nth-child(3){transition-delay:.12s}
.card-grid .reveal:nth-child(4){transition-delay:.18s}
.card-grid .reveal:nth-child(5){transition-delay:.24s}
.card-grid .reveal:nth-child(6){transition-delay:.30s}
.card-grid .reveal:nth-child(7){transition-delay:.36s}
.card-grid .reveal:nth-child(8){transition-delay:.42s}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important}
  .reveal{opacity:1;transform:none}
  html{scroll-behavior:auto}
}

/* ===================== 响应式 ===================== */
@media (max-width:1279px){
  :root{--wrap:1140px}
}
@media (max-width:1023px){
  :root{--section-y:72px}
  .container{padding:0 20px}
  .intro__grid{grid-template-columns:1fr;gap:32px}
  .intro__side{border-left:0;padding-left:0;border-top:1px solid var(--line);padding-top:24px}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
  .stat-bar__inner{grid-template-columns:repeat(2,1fr)}
  .flow{grid-template-columns:1fr;gap:20px}
  .faq-grid{grid-template-columns:1fr;gap:28px}
  .faq-aside{position:static}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
}
@media (max-width:899px){
  .nav{display:none}
  .nav-toggle{display:inline-flex}
  .header-left{justify-content:flex-start}
  .header-inner{height:70px;grid-template-columns:auto 1fr auto}
  .brand{justify-self:center;font-size:18px}
  .site-header.is-scrolled .header-inner{height:62px}
  .header-right{gap:12px}
}
@media (max-width:767px){
  :root{--section-y:56px}
  body{font-size:16px}
  .page-banner{min-height:190px}
  .page-banner__inner{padding-top:56px;padding-bottom:30px}
  .card-grid{grid-template-columns:1fr;gap:20px}
  .card__desc{min-height:auto}
  .section-head{gap:12px;margin-bottom:32px}
  .section-index{font-size:32px}
  .stat{padding:24px 18px}
  .cta-band{padding:56px 0}
  .cta-band__actions{width:100%}
  .cta-band__actions .btn{flex:1 1 100%}
  .footer-grid{grid-template-columns:1fr;gap:32px;padding-bottom:36px}
  .footer-bottom{justify-content:center;text-align:center}
}
@media (max-width:479px){
  .container{padding:0 16px}
  .brand{font-size:16px}
  .brand__mark{width:7px;height:7px;flex:0 0 7px}
  .header-right .btn--sm{padding:0 14px;font-size:13px}
  .btn--lg{height:54px;padding:0 26px;font-size:15px}
  .card__body{padding:18px}
  .flow__num{font-size:28px}
  .page-link{min-width:40px;height:40px;padding:0 12px}
}

/* roulang page: category2 */
/* ===================== 设计令牌 ===================== */
:root{
  --ink-900:#0E1116;
  --ink-700:#2A2F38;
  --ink-500:#5F6673;
  --paper-50:#F6F3EC;
  --paper-100:#EFEAE0;
  --line:#DCD6C8;
  --brand:#FF4D1C;
  --brand-deep:#C9330A;
  --accent:#C6F24E;
  --ok:#2F9E6B;
  --warn:#E0A800;
  --err:#D64545;

  --r-card:20px;
  --r-img:16px;
  --r-pill:999px;
  --r-input:10px;

  --shadow-hover:0 16px 40px -28px rgba(14,17,22,.35);
  --shadow-hard:4px 4px 0 rgba(14,17,22,.06);
  --ease:cubic-bezier(.2,.7,.2,1);

  --font-cn:"HarmonyOS Sans SC","PingFang SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --font-num:"Inter","Space Grotesk","Helvetica Neue",Arial,sans-serif;

  --container:1220px;
}

/* ===================== 基础重置 ===================== */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:17px;
  line-height:1.9;
  color:var(--ink-700);
  background:var(--paper-50);
  overflow-x:hidden;
}
body.nav-open{overflow:hidden;}
h1,h2,h3,h4{margin:0;color:var(--ink-900);line-height:1.25;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color .25s var(--ease);}
button,input,select,textarea{font:inherit;color:inherit;}
button{cursor:pointer;border:0;background:none;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px;}
.skip-link{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;}

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

/* ===================== 通用文字与元件 ===================== */
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-family:var(--font-num);
  font-size:12px;
  font-weight:700;
  letter-spacing:.18em;
  text-transform:uppercase;
  color:var(--ink-500);
}
.eyebrow::before{
  content:"";
  width:24px;
  height:2px;
  background:var(--brand);
  display:block;
}
.eyebrow--light{color:rgba(246,243,236,.72);}

.badge{
  display:inline-flex;
  align-items:center;
  height:26px;
  padding:0 12px;
  border-radius:var(--r-pill);
  border:1px solid var(--line);
  background:var(--paper-50);
  font-size:12px;
  font-weight:700;
  letter-spacing:.04em;
  color:var(--ink-700);
  white-space:nowrap;
}
.badge--accent{background:var(--accent);border-color:var(--accent);color:var(--ink-900);}
.badge--outline{background:transparent;border-color:rgba(14,17,22,.22);}
.badge--dark{background:rgba(246,243,236,.12);border-color:rgba(246,243,236,.3);color:#F6F3EC;}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  border-radius:var(--r-pill);
  font-weight:700;
  font-size:15px;
  line-height:1;
  text-align:center;
  transition:background-color .25s var(--ease),color .25s var(--ease),border-color .25s var(--ease),transform .25s var(--ease),box-shadow .25s var(--ease);
}
.btn--sm{height:40px;padding:0 20px;font-size:14px;}
.btn--md{height:52px;padding:0 30px;}
.btn--lg{height:60px;padding:0 34px;font-size:16px;}

.btn--primary{background:var(--brand);color:#F6F3EC;}
.btn--primary:hover{background:var(--brand-deep);transform:translateY(-1px);}
.btn--primary:active{transform:translateY(0);filter:brightness(.95);}
.btn--primary.is-disabled,.btn--primary:disabled{opacity:.6;cursor:not-allowed;transform:none;}

.btn--ghost{background:transparent;border:1px solid var(--ink-900);border-radius:8px;color:var(--ink-900);}
.btn--ghost:hover{background:var(--ink-900);color:var(--paper-50);}

.btn--dark-ghost{background:transparent;border:1px solid rgba(246,243,236,.4);color:#F6F3EC;}
.btn--dark-ghost:hover{border-color:var(--accent);color:var(--accent);}

.btn--text{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14px;
  font-weight:700;
  color:var(--ink-900);
  border-radius:6px;
}
.btn--text span{transition:transform .25s var(--ease);}
.btn--text:hover{color:var(--brand);}
.btn--text:hover span{transform:translateX(4px);}

.section{padding:88px 0;}
.section--tint{background:var(--paper-100);}
.section--dark{background:var(--ink-900);color:rgba(246,243,236,.78);}
.section--dark h2,.section--dark h3{color:#F6F3EC;}

.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:28px;
  padding-bottom:26px;
  border-bottom:1px solid var(--line);
  margin-bottom:44px;
}
.section-head__left{display:flex;align-items:baseline;gap:20px;flex-wrap:wrap;}
.section-index{
  font-family:var(--font-num);
  font-size:40px;
  font-weight:900;
  line-height:1;
  color:var(--line);
  letter-spacing:-.02em;
}
.section--dark .section-index{color:rgba(246,243,236,.28);}
.section-head h2{font-size:clamp(26px,3vw,38px);font-weight:800;letter-spacing:-.01em;}
.section-head p{margin-top:8px;font-size:14px;color:var(--ink-500);}
.section--dark .section-head{border-bottom-color:rgba(246,243,236,.18);}
.section--dark .section-head p{color:rgba(246,243,236,.6);}

/* ===================== 顶部公告条 ===================== */
.topbar{
  background:var(--ink-900);
  color:rgba(246,243,236,.82);
  font-size:13px;
  height:28px;
  display:flex;
  align-items:center;
}
.topbar__inner{
  display:flex;
  align-items:center;
  gap:12px;
  justify-content:space-between;
}
.topbar__dot{
  width:6px;height:6px;border-radius:50%;
  background:var(--accent);
  display:inline-block;
  flex:none;
  animation:pulse 2.4s var(--ease) infinite;
}
@keyframes pulse{0%,100%{opacity:1;}50%{opacity:.35;}}
.topbar__meta{color:rgba(246,243,236,.55);}

/* ===================== 头部导航 ===================== */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(246,243,236,.94);
  backdrop-filter:blur(8px);
  -webkit-backdrop-filter:blur(8px);
  border-bottom:1px solid transparent;
  transition:border-color .3s var(--ease),box-shadow .3s var(--ease);
}
.site-header.is-scrolled{border-bottom-color:var(--line);box-shadow:0 8px 24px -22px rgba(14,17,22,.5);}

.header-inner{
  display:grid;
  grid-template-columns:1fr auto 1fr;
  align-items:center;
  gap:24px;
  height:88px;
  transition:height .3s var(--ease);
}
.site-header.is-scrolled .header-inner{height:68px;}

.nav{display:flex;align-items:center;gap:26px;}
.nav--left{justify-content:flex-start;}
.nav--right{justify-content:flex-end;}
.nav a{
  position:relative;
  font-size:15px;
  font-weight:600;
  color:var(--ink-700);
  padding:6px 0;
  white-space:nowrap;
}
.nav a::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:0;
  height:2px;
  background:var(--brand);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .25s var(--ease);
}
.nav a:hover{color:var(--ink-900);}
.nav a:hover::after,
.nav a.is-active::after{transform:scaleX(1);}
.nav a.is-active{color:var(--ink-900);}
.nav a.btn::after{display:none;}
.nav a.btn{border-radius:var(--r-pill);}

.brand{
  display:inline-flex;
  align-items:center;
  gap:9px;
  font-size:19px;
  font-weight:900;
  letter-spacing:-.01em;
  color:var(--ink-900);
  white-space:nowrap;
}
.brand__mark{
  width:10px;height:10px;
  border-radius:2px;
  background:var(--accent);
  box-shadow:0 0 0 3px rgba(198,242,78,.28);
  flex:none;
}
.brand__text{font-size:19px;font-weight:900;}
.brand__chip{
  display:inline-flex;
  align-items:center;
  height:20px;
  padding:0 8px;
  border-radius:var(--r-pill);
  background:var(--accent);
  color:var(--ink-900);
  font-family:var(--font-num);
  font-size:11px;
  font-weight:800;
  letter-spacing:.08em;
}

.nav-toggle{
  display:none;
  width:44px;height:44px;
  border-radius:10px;
  border:1px solid var(--line);
  align-items:center;
  justify-content:center;
  flex-direction:column;
  gap:5px;
  background:var(--paper-50);
}
.nav-toggle span{
  display:block;
  width:18px;height:2px;
  background:var(--ink-900);
  border-radius:2px;
}
.nav-toggle:hover{border-color:var(--brand);}

.nav-drawer{
  position:fixed;
  inset:0;
  z-index:90;
  background:var(--paper-50);
  display:flex;
  flex-direction:column;
  padding:20px;
  transform:translateY(-102%);
  visibility:hidden;
  transition:transform .38s var(--ease),visibility .38s;
}
.nav-drawer.is-open{transform:translateY(0);visibility:visible;}
.nav-drawer__head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding-bottom:18px;
  border-bottom:1px solid var(--line);
  margin-bottom:22px;
}
.nav-drawer__close{
  width:44px;height:44px;
  border-radius:10px;
  border:1px solid var(--line);
  font-size:22px;
  line-height:1;
  color:var(--ink-900);
  display:flex;
  align-items:center;
  justify-content:center;
}
.nav-drawer__close:hover{border-color:var(--brand);color:var(--brand);}
.nav-drawer__links{display:flex;flex-direction:column;gap:6px;}
.nav-drawer__links a{
  font-size:20px;
  font-weight:800;
  color:var(--ink-900);
  padding:14px 4px;
  border-bottom:1px solid var(--line);
}
.nav-drawer__links a.is-active{color:var(--brand);}
.nav-drawer__cta{margin-top:auto;width:100%;}

/* ===================== 分类页横幅 ===================== */
.cat-banner{
  position:relative;
  min-height:240px;
  display:flex;
  align-items:flex-end;
  background-image:url(/assets/images/backpic/back-1.webp);
  background-size:cover;
  background-position:center;
  color:#F6F3EC;
  overflow:hidden;
}
.cat-banner::after{
  content:"";
  position:absolute;
  inset:0;
  background:rgba(14,17,22,.66);
}
.cat-banner__inner{
  position:relative;
  z-index:1;
  width:100%;
  padding:60px 0 36px;
}
.crumb{display:flex;align-items:center;gap:10px;font-size:13px;color:rgba(246,243,236,.68);margin-bottom:20px;flex-wrap:wrap;}
.crumb a{color:rgba(246,243,236,.68);}
.crumb a:hover{color:var(--accent);}
.crumb li{display:flex;align-items:center;gap:10px;}
.crumb li + li::before{content:"/";color:rgba(246,243,236,.4);}
.crumb li[aria-current] span{color:#F6F3EC;font-weight:700;}

.cat-banner h1{
  color:#F6F3EC;
  font-size:clamp(30px,4.6vw,48px);
  font-weight:900;
  letter-spacing:-.02em;
  line-height:1.14;
  max-width:22ch;
  margin:14px 0 16px;
}
.cat-banner__meta{
  display:flex;
  align-items:center;
  gap:16px;
  flex-wrap:wrap;
  font-size:13px;
  color:rgba(246,243,236,.7);
}

/* ===================== 简介与筛选 ===================== */
.intro{padding:64px 0 0;}
.intro__lead{
  max-width:640px;
  font-size:15px;
  color:var(--ink-700);
}
.intro__lead strong{color:var(--ink-900);}

.filter{
  display:flex;
  gap:10px;
  margin-top:32px;
  padding-bottom:4px;
  overflow-x:auto;
  scrollbar-width:thin;
}
.filter::-webkit-scrollbar{height:4px;}
.filter::-webkit-scrollbar-thumb{background:var(--line);border-radius:4px;}
.chip{
  flex:none;
  display:inline-flex;
  align-items:center;
  height:38px;
  padding:0 18px;
  border-radius:var(--r-pill);
  border:1px solid var(--line);
  background:transparent;
  font-size:14px;
  font-weight:600;
  color:var(--ink-700);
  transition:all .25s var(--ease);
}
.chip:hover{border-color:var(--brand);color:var(--brand);}
.chip.is-active{background:var(--ink-900);border-color:var(--ink-900);color:#F6F3EC;}

/* ===================== 主体两栏 ===================== */
.cat-main{padding:56px 0 88px;}
.cat-layout{
  display:grid;
  grid-template-columns:minmax(0,1fr) 360px;
  gap:56px;
  align-items:start;
}

/* ---- 编号列表 ---- */
.entry-list{border-top:1px solid var(--line);}
.entry{
  display:grid;
  grid-template-columns:56px minmax(0,1fr);
  gap:22px;
  padding:26px 16px;
  border-bottom:1px solid var(--line);
  transition:background-color .3s var(--ease);
  position:relative;
}
.entry:hover{background:var(--paper-100);}
.entry__num{
  font-family:var(--font-num);
  font-size:40px;
  font-weight:900;
  line-height:1.1;
  letter-spacing:-.03em;
  color:transparent;
  -webkit-text-stroke:1.4px var(--line);
  transition:color .3s var(--ease),-webkit-text-stroke-color .3s var(--ease),transform .3s var(--ease);
}
.entry:hover .entry__num{
  color:var(--brand);
  -webkit-text-stroke-color:var(--brand);
  transform:translateY(-2px);
}
.entry__head{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-bottom:10px;}
.entry__title{
  font-size:19px;
  font-weight:800;
  color:var(--ink-900);
  margin-bottom:8px;
  line-height:1.45;
}
.entry:hover .entry__title{color:var(--brand-deep);}
.entry__desc{font-size:15px;color:var(--ink-500);line-height:1.85;}
.entry__meta{
  display:flex;
  align-items:center;
  gap:14px;
  flex-wrap:wrap;
  margin-top:14px;
  font-size:13px;
  color:var(--ink-500);
}
.entry__meta .dot{width:4px;height:4px;border-radius:50%;background:var(--line);display:inline-block;}
.entry__link{
  position:absolute;
  inset:0;
  z-index:1;
}
.entry__link:focus-visible{outline-offset:-4px;}

.pager{
  display:flex;
  align-items:center;
  gap:8px;
  margin-top:36px;
  flex-wrap:wrap;
}
.pager a,.pager span{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-width:40px;
  height:40px;
  padding:0 14px;
  border-radius:10px;
  border:1px solid var(--line);
  font-size:14px;
  font-weight:700;
  color:var(--ink-700);
  transition:all .25s var(--ease);
}
.pager a:hover{border-color:var(--brand);color:var(--brand);}
.pager .is-current{background:var(--brand);border-color:var(--brand);color:#F6F3EC;}
.pager .is-disabled{opacity:.45;cursor:not-allowed;}

/* ---- 侧栏 ---- */
.sidebar{display:flex;flex-direction:column;gap:20px;}
.side-card{
  border:1px solid var(--line);
  border-radius:var(--r-card);
  background:#FBF9F4;
  padding:24px;
  box-shadow:var(--shadow-hard);
}
.side-card h3{font-size:16px;font-weight:800;margin-bottom:14px;}
.side-card__figure{
  margin:-24px -24px 18px;
  border-radius:var(--r-card) var(--r-card) 0 0;
  overflow:hidden;
}
.side-card__figure img{
  width:100%;
  aspect-ratio:16/10;
  object-fit:cover;
  transition:transform .5s var(--ease);
}
.side-card:hover .side-card__figure img{transform:scale(1.04);}
.side-card p{font-size:14px;color:var(--ink-500);line-height:1.8;}
.side-list{display:flex;flex-direction:column;gap:2px;margin-top:6px;}
.side-list a{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  padding:11px 0;
  border-bottom:1px solid var(--line);
  font-size:14px;
  font-weight:600;
  color:var(--ink-700);
}
.side-list a:last-child{border-bottom:0;}
.side-list a:hover{color:var(--brand);}
.side-list a span{color:var(--ink-500);font-size:13px;}
.side-cta{
  background:var(--ink-900);
  border-color:var(--ink-900);
  color:rgba(246,243,236,.75);
}
.side-cta h3{color:#F6F3EC;}
.side-cta p{color:rgba(246,243,236,.66);}
.side-cta .btn{margin-top:18px;width:100%;}

/* ===================== FAQ ===================== */
.accordion{border-top:1px solid var(--line);}
.accordion details{border-bottom:1px solid var(--line);}
.accordion summary{
  list-style:none;
  cursor:pointer;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  padding:22px 4px;
  font-size:17px;
  font-weight:700;
  color:var(--ink-900);
  transition:color .25s var(--ease);
}
.accordion summary::-webkit-details-marker{display:none;}
.accordion summary:hover{color:var(--brand);}
.accordion .mark{
  position:relative;
  width:18px;height:18px;
  flex:none;
}
.accordion .mark::before,
.accordion .mark::after{
  content:"";
  position:absolute;
  background:var(--ink-900);
  border-radius:2px;
  transition:transform .3s var(--ease),background-color .3s var(--ease);
}
.accordion .mark::before{left:0;top:8px;width:18px;height:2px;}
.accordion .mark::after{left:8px;top:0;width:2px;height:18px;}
.accordion details[open] .mark::after{transform:scaleY(0);}
.accordion details[open] .mark::before{background:var(--brand);}
.accordion details[open] summary{color:var(--brand);}
.accordion .panel{
  padding:0 4px 24px;
  font-size:15px;
  color:var(--ink-500);
  max-width:760px;
}

/* ===================== CTA 条 ===================== */
.cta-band{
  padding:64px 0;
}
.cta-inner{
  display:grid;
  grid-template-columns:1fr auto;
  align-items:center;
  gap:40px;
}
.cta-inner h2{font-size:clamp(24px,2.6vw,34px);font-weight:800;letter-spacing:-.01em;max-width:24ch;}
.cta-list{display:flex;gap:26px;flex-wrap:wrap;margin-top:22px;}
.cta-list li{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:14px;
  color:rgba(246,243,236,.7);
}
.cta-list li::before{
  content:"";
  width:14px;height:14px;
  border-radius:3px;
  background:var(--accent);
  flex:none;
}

/* ===================== 页脚 ===================== */
.site-footer{
  background:var(--ink-900);
  color:rgba(246,243,236,.72);
  border-top:1px solid var(--accent);
  padding-top:64px;
  font-size:14px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.4fr;
  gap:40px;
  padding-bottom:48px;
}
.footer-brand{
  display:inline-flex;
  align-items:center;
  gap:9px;
  font-size:18px;
  font-weight:900;
  color:#F6F3EC;
  margin-bottom:16px;
}
.footer-brand__chip{
  display:inline-flex;
  align-items:center;
  height:20px;
  padding:0 8px;
  border-radius:var(--r-pill);
  background:var(--accent);
  color:var(--ink-900);
  font-family:var(--font-num);
  font-size:11px;
  font-weight:800;
}
.footer-desc{font-size:13.5px;line-height:1.9;color:rgba(246,243,236,.6);max-width:36ch;}
.socials{display:flex;gap:10px;margin-top:22px;flex-wrap:wrap;}
.socials a{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-width:52px;
  height:36px;
  padding:0 14px;
  border-radius:var(--r-pill);
  border:1px solid rgba(246,243,236,.28);
  font-size:13px;
  color:rgba(246,243,236,.75);
}
.socials a:hover{border-color:var(--accent);color:var(--accent);}
.footer-col h4{font-size:15px;font-weight:800;color:#F6F3EC;margin-bottom:18px;}
.footer-col ul{display:flex;flex-direction:column;gap:12px;}
.footer-col a{font-size:13.5px;color:rgba(246,243,236,.66);}
.footer-col a:hover{color:var(--accent);}
.footer-note{font-size:12.5px;color:rgba(246,243,236,.45);margin-top:12px;line-height:1.8;}
.footer-form{display:flex;gap:8px;margin-top:16px;}
.footer-form input{
  flex:1;
  min-width:0;
  height:40px;
  padding:0 14px;
  border-radius:var(--r-input);
  border:1px solid rgba(246,243,236,.22);
  background:rgba(246,243,236,.06);
  color:#F6F3EC;
  font-size:14px;
}
.footer-form input::placeholder{color:rgba(246,243,236,.4);}
.footer-form input:focus{outline:2px solid var(--accent);outline-offset:2px;border-color:transparent;}
.footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  flex-wrap:wrap;
  padding:22px 0 28px;
  border-top:1px solid rgba(246,243,236,.14);
  font-size:13px;
  color:rgba(246,243,236,.55);
}

/* ===================== 入场动效 ===================== */
[data-reveal]{
  opacity:0;
  transform:translateY(12px);
  transition:opacity .6s var(--ease),transform .6s var(--ease);
}
[data-reveal].is-visible{opacity:1;transform:none;}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important;}
  [data-reveal]{opacity:1;transform:none;}
  html{scroll-behavior:auto;}
}

/* ===================== 响应式 ===================== */
@media (max-width:1279px){
  .container{padding:0 20px;}
  .cat-layout{gap:40px;grid-template-columns:minmax(0,1fr) 320px;}
}

@media (max-width:1023px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cat-layout{grid-template-columns:1fr;}
  .sidebar{position:static;display:grid;grid-template-columns:1fr 1fr;gap:20px;}
  .cta-inner{grid-template-columns:1fr;gap:28px;}
  .entry{grid-template-columns:48px minmax(0,1fr);gap:18px;}
  .entry__num{font-size:36px;}
}

@media (max-width:899px){
  .nav--left,.nav--right{display:none;}
  .header-inner{grid-template-columns:auto 1fr auto;height:68px;}
  .brand{justify-self:center;font-size:17px;}
  .brand__text{font-size:17px;}
  .nav-toggle{display:flex;justify-self:start;}
  .site-header.is-scrolled .header-inner{height:60px;}
  .topbar__meta{display:none;}
}

@media (max-width:767px){
  .section{padding:56px 0;}
  .cat-banner{min-height:180px;}
  .cat-banner__inner{padding:40px 0 28px;}
  .cat-main{padding:40px 0 64px;}
  .intro{padding:44px 0 0;}
  .section-head{flex-direction:column;align-items:flex-start;gap:14px;margin-bottom:30px;}
  .entry{padding:22px 8px;grid-template-columns:36px minmax(0,1fr);gap:14px;}
  .entry__num{font-size:30px;-webkit-text-stroke-width:1.1px;}
  .entry__title{font-size:17px;}
  .entry__desc{font-size:14px;}
  .sidebar{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
  .cta-band{padding:48px 0;}
}

@media (max-width:519px){
  body{font-size:16px;}
  .container{padding:0 16px;}
  .cat-banner h1{font-size:26px;}
  .brand__text{font-size:15px;}
  .btn--md,.btn--lg{width:100%;}
  .pager{justify-content:center;}
}