/* roulang page: index */
:root{
  --ink-900:#0C2620;
  --ink-700:#12372F;
  --ink-500:#1E4C41;
  --mist-500:#8FA9A0;
  --sprout-400:#C3E85A;
  --clay-400:#D96B45;
  --paper-0:#FFFFFF;
  --paper-50:#F7F5F0;
  --paper-100:#EEEBE3;
  --line-200:#E3E0D6;
  --text-900:#141A18;
  --text-600:#3A4442;
  --text-400:#6E7A76;
  --r-card:6px;
  --r-btn:4px;
  --r-input:2px;
  --shadow-hover:0 10px 30px rgba(18,55,47,.08);
  --ease:cubic-bezier(.22,.61,.36,1);
  --container:1240px;
  --gutter:clamp(20px,5vw,48px);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--paper-50);
  color:var(--text-600);
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.85;
  overflow-x:hidden;
}
h1,h2,h3,h4{font-family:"Noto Serif SC","Noto Sans SC",serif;color:var(--text-900);margin:0;font-weight:800}
h1{font-size:clamp(34px,4.4vw,56px);line-height:1.15;letter-spacing:-0.02em}
h2{font-size:clamp(26px,3vw,36px);line-height:1.25}
h3{font-size:clamp(18px,1.6vw,22px);line-height:1.4;font-weight:600}
p{margin:0 0 1.2em}
p:last-child{margin-bottom:0}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease)}
img{display:block;max-width:100%;height:auto}
button,input,textarea,select{font:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--sprout-400);outline-offset:3px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 var(--gutter)}
.narrow{max-width:760px;margin:0 auto}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--ink-700);color:var(--paper-50);padding:10px 18px;border-radius:var(--r-btn);z-index:999}
.skip-link:focus{left:12px;top:12px}

/* 顶部信息条 */
.topbar{background:var(--ink-900);color:var(--paper-50);font-size:13px;letter-spacing:.04em}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;min-height:40px;gap:20px}
.topbar-note{color:var(--mist-500);font-size:13px}
.topbar-actions{display:flex;align-items:center;gap:20px}
.topbar-link{color:var(--paper-50);border-bottom:1px solid transparent;padding-bottom:2px}
.topbar-link:hover{color:var(--sprout-400)}
.topbar-btn{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;
  border:1px solid rgba(247,245,240,.38);border-radius:var(--r-btn);
  color:var(--paper-50);font-size:13px;letter-spacing:.02em;transition:all .22s var(--ease);
}
.topbar-btn:hover{background:rgba(195,232,90,.14);border-color:var(--sprout-400);color:var(--sprout-400)}

/* 粘性栈 */
.sticky-stack{position:sticky;top:0;z-index:60;transition:transform .3s var(--ease);background:var(--paper-50)}
.sticky-stack.is-hidden{transform:translateY(-100%)}
.site-header{background:var(--paper-50);border-bottom:1px solid transparent;transition:border-color .25s var(--ease),box-shadow .25s var(--ease)}
.sticky-stack.is-scrolled .site-header{border-bottom-color:var(--line-200);box-shadow:0 4px 18px rgba(12,38,32,.06)}
.nav-inner{display:flex;align-items:center;gap:32px;min-height:78px}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:34px;height:34px;border-radius:8px;background:var(--ink-700);
  display:flex;align-items:center;justify-content:center;flex-shrink:0;
}
.brand-mark svg{width:20px;height:20px;display:block}
.brand-text{font-family:"Noto Serif SC",serif;font-weight:800;font-size:19px;color:var(--ink-900);letter-spacing:.01em}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:8px;flex:1}
.nav-link{
  position:relative;display:inline-flex;align-items:center;height:44px;padding:0 14px;
  font-size:15px;font-weight:500;color:var(--text-600);border-radius:var(--r-btn);
}
.nav-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:10px;height:2px;
  background:var(--sprout-400);transform:scaleX(0);transform-origin:left;transition:transform .24s var(--ease);
}
.nav-link:hover{color:var(--ink-700)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--ink-700);font-weight:600}
.nav-link.is-active::after{transform:scaleX(1)}
.nav-right{display:flex;align-items:center;gap:12px;flex-shrink:0}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line-200);border-radius:var(--r-btn);
  background:var(--paper-0);cursor:pointer;align-items:center;justify-content:center;
}
.nav-toggle span{display:block;width:18px;height:1.5px;background:var(--ink-700);position:relative}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:1.5px;background:var(--ink-700);transition:transform .22s var(--ease);
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.nav-toggle[aria-expanded="true"] span{background:transparent}
.nav-toggle[aria-expanded="true"] span::before{transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span::after{transform:translateY(-6px) rotate(-45deg)}

/* 抽屉 */
.drawer{
  display:none;position:fixed;left:0;right:0;top:0;bottom:0;background:var(--paper-50);z-index:55;
  padding:120px var(--gutter) 32px;overflow-y:auto;
}
.drawer.is-open{display:flex;flex-direction:column}
.drawer-nav{display:flex;flex-direction:column;border-top:1px solid var(--line-200)}
.drawer-nav a{
  display:flex;align-items:center;min-height:56px;font-size:18px;color:var(--text-900);
  border-bottom:1px solid var(--line-200);font-weight:500;
}
.drawer-nav a.is-active{color:var(--ink-700);font-weight:700}
.drawer-cta{margin-top:24px}
.drawer-cta .btn{width:100%}

/* 倒计时条 */
.countdown-bar{background:var(--ink-900);color:var(--paper-50)}
.cd-inner{display:flex;align-items:center;gap:18px;min-height:56px;flex-wrap:wrap}
.cd-badge{
  display:inline-flex;align-items:center;height:22px;padding:0 10px;border-radius:999px;
  background:rgba(217,107,69,.18);color:#F0A184;font-size:12px;letter-spacing:.06em;flex-shrink:0;
}
.cd-label{font-size:14px;color:var(--paper-50);letter-spacing:.02em}
.cd-timer{display:flex;align-items:center;gap:6px;margin-left:auto}
.cd-cell{display:flex;align-items:baseline;gap:4px}
.cd-cell b{
  display:inline-block;min-width:38px;text-align:center;padding:3px 6px;border-radius:var(--r-btn);
  background:rgba(247,245,240,.07);color:var(--sprout-400);
  font-family:"Noto Sans SC",sans-serif;font-weight:700;font-size:17px;
  font-variant-numeric:tabular-nums;transition:transform .12s var(--ease);
}
.cd-cell b.tick{transform:translateY(2px)}
.cd-cell span{font-size:12px;color:var(--mist-500)}
.cd-sep{color:var(--mist-500);font-size:12px}
.btn-sm{height:34px;padding:0 16px;font-size:14px}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 28px;border-radius:var(--r-btn);border:1px solid transparent;
  font-size:15px;font-weight:600;cursor:pointer;position:relative;overflow:hidden;
  transition:background-color .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease),transform .18s var(--ease),box-shadow .22s var(--ease);
}
.btn::before{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:100%;background:var(--sprout-400);
  transform:scaleX(0);transform-origin:left;transition:transform .24s var(--ease);
}
.btn:hover::before{transform:scaleX(1)}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--ink-700);color:var(--paper-50)}
.btn-primary:hover{background:var(--ink-500)}
.btn-accent{background:var(--sprout-400);color:var(--ink-900)}
.btn-accent:hover{background:#D3F177}
.btn-accent::before{background:var(--ink-900)}
.btn-ghost{background:transparent;border-color:var(--ink-700);color:var(--ink-700)}
.btn-ghost:hover{background:var(--ink-700);color:var(--paper-50)}
.btn-ghost::before{display:none}
.btn[disabled],.btn.is-disabled{opacity:.4;cursor:not-allowed;pointer-events:none}
.btn.is-loading{color:transparent}
.btn.is-loading::after{
  content:"";position:absolute;width:16px;height:16px;border-radius:50%;
  border:2px solid rgba(247,245,240,.35);border-top-color:var(--paper-50);
  animation:spin .8s linear infinite;
}
@keyframes spin{to{transform:rotate(360deg)}}
.link-more{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;
  color:var(--ink-700);border-bottom:1px solid var(--ink-700);padding-bottom:2px;
}
.link-more:hover{color:var(--ink-500);border-bottom-color:var(--sprout-400)}

/* 板块 */
.section{padding:clamp(64px,8vw,116px) 0}
.section-alt{background:var(--paper-100)}
.section-dark{background:var(--ink-900);color:var(--paper-50)}
.section-dark h2,.section-dark h3,.section-dark h1{color:var(--paper-50)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;margin-bottom:44px;flex-wrap:wrap}
.section-sub{font-size:15px;color:var(--text-400);max-width:560px;margin-top:12px}
.section-dark .section-sub{color:var(--mist-500)}
.h2-mark{display:inline-flex;align-items:center;gap:12px}
.h2-mark::before{content:"";width:4px;height:26px;background:var(--sprout-400);border-radius:2px;display:inline-block}

/* Hero */
.hero{padding:clamp(48px,6vw,88px) 0 clamp(56px,7vw,104px);background:var(--paper-50)}
.hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:clamp(28px,4vw,64px);align-items:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;letter-spacing:.08em;
  color:var(--ink-500);font-weight:600;margin-bottom:20px;
}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--sprout-400)}
.hero-sub{font-size:17px;color:var(--text-600);margin-top:22px;max-width:520px}
.hero-actions{display:flex;gap:14px;margin-top:34px;flex-wrap:wrap}
.trust-row{
  display:flex;align-items:center;gap:0;margin-top:38px;border-top:1px solid var(--line-200);padding-top:20px;flex-wrap:wrap;
}
.trust-item{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--text-400);padding:0 20px}
.trust-item:first-child{padding-left:0}
.trust-item + .trust-item{border-left:1px solid var(--line-200)}
.trust-item svg{width:15px;height:15px;stroke:var(--ink-500);fill:none;stroke-width:1.6}
.hero-visual{position:relative}
.hero-visual .frame{
  position:relative;border:1px solid var(--line-200);border-radius:var(--r-card);overflow:hidden;
  background:var(--paper-100);aspect-ratio:4/3;
}
.hero-visual .frame img{width:100%;height:100%;object-fit:cover}
.hero-visual .grid-deco{
  position:absolute;inset:-14px -14px auto auto;width:120px;height:120px;
  background-image:linear-gradient(var(--ink-700) 1px,transparent 1px),linear-gradient(90deg,var(--ink-700) 1px,transparent 1px);
  background-size:14px 14px;opacity:.07;pointer-events:none;
}
.hero-visual .tag-float{
  position:absolute;left:20px;bottom:20px;background:var(--paper-0);border:1px solid var(--line-200);
  border-radius:var(--r-card);padding:12px 16px;display:flex;align-items:center;gap:12px;
}
.hero-visual .tag-float b{font-family:"Noto Serif SC",serif;font-size:20px;color:var(--ink-700);font-variant-numeric:tabular-nums}
.hero-visual .tag-float span{font-size:13px;color:var(--text-400);line-height:1.4}

/* 数据条带 */
.stats{background:var(--paper-100);border-top:1px solid var(--line-200);border-bottom:1px solid var(--line-200)}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr)}
.stat{padding:32px 24px;border-left:1px solid var(--line-200)}
.stat:first-child{border-left:none;padding-left:0}
.stat b{
  display:block;font-family:"Noto Serif SC",serif;font-size:clamp(26px,2.6vw,34px);
  color:var(--ink-700);font-variant-numeric:tabular-nums;line-height:1.2;
}
.stat span{font-size:13px;color:var(--text-400);letter-spacing:.04em}

/* 卖点长条列表 */
.longlist{border-top:1px solid var(--line-200)}
.longitem{
  display:grid;grid-template-columns:64px 5fr 3fr;gap:24px;align-items:center;
  padding:30px 18px;border-bottom:1px solid var(--line-200);
  transition:background-color .22s var(--ease),transform .22s var(--ease);
}
.longitem:hover{background:var(--paper-100);transform:translateX(4px)}
.longitem .num{
  font-family:"Noto Serif SC",serif;font-size:30px;font-weight:800;color:var(--sprout-400);
  line-height:1;font-variant-numeric:tabular-nums;
}
.longitem h3{margin-bottom:8px}
.longitem p{font-size:15px;color:var(--text-600);margin:0}
.longitem .meta{font-size:13px;color:var(--text-400);letter-spacing:.04em;text-align:right}

/* 流程 bracket */
.flow{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;position:relative}
.flow-step{
  background:var(--paper-0);border:1px solid var(--line-200);border-radius:var(--r-card);
  padding:30px 26px;position:relative;transition:box-shadow .22s var(--ease),transform .22s var(--ease);
}
.flow-step:hover{box-shadow:var(--shadow-hover);transform:translateY(-3px)}
.flow-step .step-no{
  display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:999px;
  background:var(--ink-700);color:var(--sprout-400);font-weight:700;font-size:14px;margin-bottom:18px;
  font-variant-numeric:tabular-nums;
}
.flow-step h3{margin-bottom:10px}
.flow-step p{font-size:15px;margin:0}
.flow-line{
  position:absolute;top:47px;left:0;right:0;height:1px;background:var(--line-200);z-index:-1;
}

/* 图墙 */
.gallery{display:grid;grid-template-columns:repeat(4,1fr);grid-auto-rows:150px;gap:16px}
.gallery-item{
  position:relative;overflow:hidden;border-radius:var(--r-card);border:1px solid var(--line-200);
  background:var(--paper-100);cursor:pointer;
}
.gallery-item img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease)}
.gallery-item .ov{
  position:absolute;inset:auto 0 0 0;padding:22px 20px 16px;
  background:linear-gradient(to top,rgba(12,38,32,.86),rgba(12,38,32,0));
  color:var(--paper-50);font-size:15px;font-weight:600;
  opacity:0;transform:translateY(10px);transition:all .3s var(--ease);
}
.gallery-item:hover img{transform:scale(1.03)}
.gallery-item:hover .ov{opacity:1;transform:translateY(0)}
.gallery-item:nth-child(1){grid-column:1/3;grid-row:1/3}
.gallery-item:nth-child(2){grid-column:3/5;grid-row:1/2}
.gallery-item:nth-child(3){grid-column:3/4;grid-row:2/3}
.gallery-item:nth-child(4){grid-column:4/5;grid-row:2/3}
.gallery-item:nth-child(5){grid-column:1/3;grid-row:3/4}
.gallery-item:nth-child(6){grid-column:3/5;grid-row:3/4}

/* CTA + 表单 */
.cta-grid{display:grid;grid-template-columns:6fr 6fr;gap:clamp(32px,5vw,72px);align-items:start}
.cta-points{margin-top:26px;display:flex;flex-direction:column;gap:14px}
.cta-points li{display:flex;gap:12px;font-size:15px;color:var(--mist-500);align-items:flex-start}
.cta-points li::before{
  content:"";width:8px;height:8px;background:var(--sprout-400);flex-shrink:0;margin-top:10px;
}
.form-panel{background:rgba(247,245,240,.06);border:1px solid rgba(247,245,240,.16);border-radius:var(--r-card);padding:32px}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px 20px}
.field{display:flex;flex-direction:column;gap:6px}
.field.full{grid-column:1/-1}
.field label{font-size:13px;color:var(--mist-500);letter-spacing:.04em}
.field input,.field textarea{
  background:transparent;border:none;border-bottom:1px solid rgba(247,245,240,.28);
  border-radius:0;padding:10px 0;color:var(--paper-50);font-size:15px;
  transition:border-color .22s var(--ease);
}
.field input::placeholder,.field textarea::placeholder{color:rgba(247,245,240,.34)}
.field input:focus,.field textarea:focus{outline:none;border-bottom-color:var(--sprout-400)}
.field textarea{resize:vertical;min-height:64px}
.field.has-error input,.field.has-error textarea{border-bottom-color:var(--clay-400)}
.field .err{font-size:12px;color:#F0A184;min-height:16px}
.form-foot{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-top:28px;flex-wrap:wrap}
.form-foot small{font-size:12px;color:var(--mist-500);max-width:260px;line-height:1.6}
.form-success{
  display:none;align-items:flex-start;gap:12px;background:rgba(195,232,90,.12);
  border:1px solid rgba(195,232,90,.4);border-radius:var(--r-card);padding:16px 18px;margin-top:22px;
}
.form-success.is-visible{display:flex}
.form-success svg{width:18px;height:18px;stroke:var(--sprout-400);fill:none;stroke-width:2;flex-shrink:0;margin-top:4px}
.form-success p{margin:0;font-size:14px;color:var(--paper-50)}

/* 资讯列表 */
.news-featured{
  display:grid;grid-template-columns:1fr 1fr;gap:0;background:var(--paper-0);
  border:1px solid var(--line-200);border-radius:var(--r-card);overflow:hidden;margin-bottom:24px;
  transition:box-shadow .22s var(--ease);
}
.news-featured:hover{box-shadow:var(--shadow-hover)}
.news-featured .thumb{background:var(--paper-100);min-height:260px}
.news-featured .thumb img{width:100%;height:100%;object-fit:cover}
.news-featured .body{padding:34px 34px 30px;display:flex;flex-direction:column}
.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;
  font-size:12px;letter-spacing:.04em;background:var(--paper-100);color:var(--ink-700);
}
.badge-accent{background:rgba(195,232,90,.28);color:var(--ink-900)}
.badge-clay{background:rgba(217,107,69,.14);color:#A94A28}
.news-featured h3{margin:16px 0 12px;font-size:22px}
.news-featured p{font-size:15px;color:var(--text-600);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.meta-row{
  display:flex;align-items:center;gap:10px;margin-top:auto;padding-top:22px;
  font-size:13px;color:var(--text-400);letter-spacing:.04em;
}
.meta-row .dot{width:3px;height:3px;border-radius:50%;background:var(--mist-500)}
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.news-card{
  background:var(--paper-0);border:1px solid var(--line-200);border-radius:var(--r-card);
  overflow:hidden;display:flex;flex-direction:column;transition:box-shadow .22s var(--ease),transform .22s var(--ease);
}
.news-card:hover{box-shadow:var(--shadow-hover);transform:translateY(-3px)}
.news-card .thumb{aspect-ratio:16/10;background:var(--paper-100);overflow:hidden}
.news-card .thumb img{width:100%;height:100%;object-fit:cover}
.news-card .body{padding:22px 22px 20px;display:flex;flex-direction:column;flex:1}
.news-card h3{font-size:18px;margin:14px 0 10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-card .sum{font-size:14px;color:var(--text-600);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin:0}
.news-card .arrow{margin-left:auto;color:var(--ink-700);font-weight:700;transition:transform .22s var(--ease)}
.news-card:hover .arrow{transform:translateX(3px)}
.empty-state{
  border:1px dashed var(--line-200);border-radius:var(--r-card);background:var(--paper-0);
  padding:48px 32px;text-align:center;
}
.empty-state p{color:var(--text-400);font-size:15px;margin-bottom:18px}
.skeleton{
  background:var(--paper-0);border:1px solid var(--line-200);border-radius:var(--r-card);padding:22px;
}
.skeleton .bar{height:12px;background:var(--paper-100);border-radius:3px;margin-bottom:12px}
.skeleton .bar.w60{width:60%}
.skeleton .bar.w40{width:40%}

/* FAQ */
.faq{border-top:1px solid var(--line-200)}
.faq-item{border-bottom:1px solid var(--line-200)}
.faq-q{
  width:100%;display:flex;align-items:center;gap:20px;min-height:64px;padding:18px 8px;
  background:transparent;border:none;cursor:pointer;text-align:left;
}
.faq-q .idx{
  font-family:"Noto Sans SC",sans-serif;font-weight:700;color:var(--mist-500);
  font-size:14px;font-variant-numeric:tabular-nums;flex-shrink:0;width:26px;
}
.faq-q .txt{font-family:"Noto Serif SC",serif;font-weight:600;font-size:17px;color:var(--text-900);flex:1}
.faq-q .plus{position:relative;width:16px;height:16px;flex-shrink:0;transition:transform .28s var(--ease)}
.faq-q .plus::before,.faq-q .plus::after{
  content:"";position:absolute;background:var(--ink-500);transition:background-color .22s var(--ease);
}
.faq-q .plus::before{left:0;top:7px;width:16px;height:1.5px}
.faq-q .plus::after{left:7px;top:0;width:1.5px;height:16px}
.faq-item.is-open .faq-q .plus{transform:rotate(90deg)}
.faq-item.is-open .faq-q .plus::after{opacity:0}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s var(--ease),opacity .28s var(--ease);opacity:0}
.faq-item.is-open .faq-a{opacity:1}
.faq-a-inner{padding:0 8px 26px 46px;font-size:15px;color:var(--text-600);max-width:820px}

/* 页脚 */
.site-footer{background:var(--ink-900);color:var(--paper-50);padding:clamp(56px,7vw,88px) 0 28px}
.footer-top{display:flex;align-items:flex-start;justify-content:space-between;gap:32px;flex-wrap:wrap}
.footer-brand{display:flex;align-items:center;gap:12px}
.footer-brand .brand-mark{background:rgba(247,245,240,.1)}
.footer-brand .brand-text{color:var(--paper-50)}
.footer-slogan{font-size:14px;color:var(--mist-500);margin-top:14px}
.to-top{
  display:inline-flex;align-items:center;gap:8px;height:40px;padding:0 18px;border-radius:var(--r-btn);
  border:1px solid rgba(247,245,240,.3);color:var(--paper-50);font-size:14px;background:transparent;cursor:pointer;
  transition:all .22s var(--ease);
}
.to-top:hover{border-color:var(--sprout-400);color:var(--sprout-400)}
.footer-cols{display:grid;grid-template-columns:repeat(4,1fr);gap:32px;margin-top:56px}
.footer-col h4{font-family:"Noto Sans SC",sans-serif;font-size:14px;font-weight:700;color:var(--paper-50);margin-bottom:16px;letter-spacing:.04em}
.footer-col a{display:block;font-size:14px;line-height:2.2;color:var(--mist-500)}
.footer-col a:hover{color:var(--sprout-400)}
.footer-col p{font-size:14px;line-height:2.2;color:var(--mist-500);margin:0}
.footer-qr{
  width:104px;height:104px;border:1px solid rgba(247,245,240,.22);border-radius:var(--r-card);
  background:rgba(247,245,240,.05);display:flex;align-items:center;justify-content:center;
  font-size:12px;color:var(--mist-500);text-align:center;line-height:1.5;padding:8px;
}
.footer-bottom{
  margin-top:52px;padding-top:24px;border-top:1px solid rgba(247,245,240,.14);
  display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap;
  font-size:13px;color:var(--mist-500);letter-spacing:.02em;
}

/* 动效 */
.reveal{opacity:0;transform:translateY(14px)}
.reveal.is-in{opacity:1;transform:none;transition:opacity .52s var(--ease),transform .52s var(--ease)}

/* 响应式 */
@media (max-width:1200px){
  .hero-grid{grid-template-columns:1fr 1fr;gap:36px}
  .stats-grid{grid-template-columns:repeat(4,1fr)}
  .news-grid{grid-template-columns:repeat(3,1fr)}
}
@media (max-width:1024px){
  .nav-links{display:none}
  .nav-toggle{display:flex}
  .nav-right .btn-primary{display:none}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .hero-visual{order:-1}
  .cta-grid{grid-template-columns:1fr}
  .gallery{grid-template-columns:repeat(2,1fr);grid-auto-rows:170px}
  .gallery-item:nth-child(1){grid-column:1/3;grid-row:1/3}
  .gallery-item:nth-child(2){grid-column:1/2;grid-row:3/4}
  .gallery-item:nth-child(3){grid-column:2/3;grid-row:3/4}
  .gallery-item:nth-child(4){grid-column:1/2;grid-row:4/5}
  .gallery-item:nth-child(5){grid-column:2/3;grid-row:4/5}
  .gallery-item:nth-child(6){grid-column:1/3;grid-row:5/6}
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .news-featured{grid-template-columns:1fr}
  .news-featured .thumb{min-height:220px;aspect-ratio:16/9}
  .flow{grid-template-columns:1fr;gap:16px}
  .flow-line{display:none}
  .longitem{grid-template-columns:48px 1fr;gap:18px}
  .longitem .meta{grid-column:2/3;text-align:left;margin-top:6px}
  .footer-cols{grid-template-columns:repeat(2,1fr);gap:28px}
}
@media (max-width:768px){
  .topbar{display:none}
  .section{padding:64px 0}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .stat{border-left:none;border-top:1px solid var(--line-200);padding:22px 0}
  .stat:nth-child(2){border-top:none}
  .stat:nth-child(3),.stat:nth-child(4){border-top:1px solid var(--line-200)}
  .cd-inner{min-height:auto;padding:12px 0;gap:10px}
  .cd-timer{margin-left:0;width:100%;justify-content:space-between;order:3}
  .cd-cell{flex:1;justify-content:center}
  .cd-cell b{min-width:30px}
  .cd-inner .btn-sm{order:2;margin-left:auto}
  .form-grid{grid-template-columns:1fr}
  .form-panel{padding:24px 20px}
  .gallery{grid-template-columns:1fr;grid-auto-rows:200px}
  .gallery-item:nth-child(n){grid-column:1/2}
  .gallery-item:nth-child(1){grid-row:1/3}
  .gallery-item:nth-child(2){grid-row:3/4}
  .gallery-item:nth-child(3){grid-row:4/5}
  .gallery-item:nth-child(4){grid-row:5/6}
  .gallery-item:nth-child(5){grid-row:6/7}
  .gallery-item:nth-child(6){grid-row:7/8}
  .news-grid{grid-template-columns:1fr}
  .hero-actions .btn{width:100%}
  .trust-item{padding:0 14px}
}
@media (max-width:520px){
  body{font-size:15px}
  .brand-text{font-size:17px}
  .footer-cols{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .longitem{padding:24px 10px}
  .faq-a-inner{padding-left:8px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important;scroll-behavior:auto !important}
  .reveal{opacity:1;transform:none}
}

/* roulang page: article */
:root{
  --ink-900:#0C2620;
  --ink-700:#12372F;
  --ink-500:#1E4C41;
  --mist-500:#8FA9A0;
  --sprout-400:#C3E85A;
  --clay-400:#D96B45;
  --paper-0:#FFFFFF;
  --paper-50:#F7F5F0;
  --paper-100:#EEEBE3;
  --line-200:#E3E0D6;
  --text-900:#141A18;
  --text-600:#3A4442;
  --text-400:#6E7A76;
  --radius-card:6px;
  --radius-btn:4px;
  --radius-input:2px;
  --shadow-hover:0 10px 30px rgba(18,55,47,.08);
  --ease:cubic-bezier(.22,.61,.36,1);
  --container:1240px;
  --sans:"Noto Sans SC",system-ui,-apple-system,"PingFang SC","Microsoft YaHei",sans-serif;
  --serif:"Noto Serif SC",Georgia,"Songti SC",serif;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--sans);
  font-size:16px;
  line-height:1.85;
  color:var(--text-600);
  background:var(--paper-50);
  overflow-x:hidden;
}
body.no-scroll{overflow:hidden;}
h1,h2,h3,h4{margin:0;color:var(--text-900);font-family:var(--serif);}
p{margin:0 0 1.2em;}
p:last-child{margin-bottom:0;}
a{color:inherit;text-decoration:none;}
img{max-width:100%;display:block;height:auto;}
button{font:inherit;cursor:pointer;background:none;border:0;color:inherit;}
ul,ol{margin:0;padding:0;}
table{border-collapse:collapse;}
:focus-visible{outline:2px solid var(--sprout-400);outline-offset:2px;border-radius:3px;}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 clamp(20px,5vw,48px);}
.container-narrow{width:100%;max-width:760px;margin:0 auto;padding:0 clamp(20px,5vw,24px);}
.container-mid{width:100%;max-width:1080px;margin:0 auto;padding:0 clamp(20px,5vw,32px);}

/* ============ 顶部信息条 ============ */
.topbar{background:var(--ink-900);color:var(--paper-50);font-size:13px;letter-spacing:.04em;}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;height:40px;}
.topbar-note{color:var(--mist-500);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.topbar-note i{color:var(--sprout-400);margin-right:6px;}
.topbar-actions{display:flex;align-items:center;gap:18px;}
.topbar-link{color:var(--paper-50);position:relative;padding-bottom:1px;}
.topbar-link::after{content:'';position:absolute;left:0;right:0;bottom:-1px;height:1px;background:var(--sprout-400);opacity:.6;transition:opacity .22s var(--ease);}
.topbar-link:hover{color:var(--sprout-400);}
.topbar-link:hover::after{opacity:1;}
.topbar-btn{border:1px solid rgba(195,232,90,.55);color:var(--sprout-400);padding:4px 14px;border-radius:999px;font-size:12px;line-height:1.6;transition:background .22s var(--ease),color .22s var(--ease);min-height:26px;}
.topbar-btn:hover{background:var(--sprout-400);color:var(--ink-900);}

/* ============ 主导航 ============ */
.site-header{
  position:sticky;top:0;z-index:90;
  background:rgba(247,245,240,.95);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid transparent;
  transition:transform .3s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.site-header.is-scrolled{border-bottom-color:var(--line-200);box-shadow:0 4px 18px rgba(12,38,32,.05);}
.site-header.is-hidden{transform:translateY(-100%);}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:78px;}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:36px;height:36px;display:grid;place-items:center;
  border:1px solid var(--ink-700);border-radius:6px;background:var(--ink-900);
  transition:transform .22s var(--ease);
}
.brand-mark svg{width:20px;height:20px;}
.brand:hover .brand-mark{transform:translateY(-1px);}
.brand-text{font-family:var(--serif);font-weight:800;font-size:18px;color:var(--ink-900);letter-spacing:.01em;}
.nav-links{display:flex;align-items:center;gap:4px;list-style:none;}
.nav-link{
  position:relative;display:inline-flex;align-items:center;
  padding:10px 14px;font-size:15px;font-weight:500;color:var(--text-600);
  border-radius:var(--radius-btn);transition:color .22s var(--ease),background .22s var(--ease);
}
.nav-link:hover{color:var(--ink-700);background:var(--paper-100);}
.nav-link.is-active{color:var(--ink-700);font-weight:600;background:transparent;}
.nav-link.is-active::after{
  content:'';position:absolute;left:14px;right:14px;bottom:2px;height:2px;
  background:var(--sprout-400);border-radius:2px;
}
.nav-cta{display:flex;align-items:center;gap:12px;}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line-200);border-radius:var(--radius-btn);
  align-items:center;justify-content:center;color:var(--ink-700);background:var(--paper-0);
}
.nav-toggle i{font-size:17px;}

/* ============ 按钮 ============ */
.btn{
  position:relative;display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 28px;min-height:44px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;line-height:1;border:1px solid transparent;
  transition:background .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease),transform .12s var(--ease);
  overflow:hidden;
}
.btn-primary{background:var(--ink-700);color:var(--paper-50);}
.btn-primary:hover{background:var(--ink-900);}
.btn-primary::after{
  content:'';position:absolute;left:0;bottom:0;height:2px;width:100%;
  background:var(--sprout-400);transform:scaleX(0);transform-origin:left;
  transition:transform .24s var(--ease);
}
.btn-primary:hover::after{transform:scaleX(1);}
.btn-ghost{background:transparent;border-color:var(--ink-700);color:var(--ink-700);}
.btn-ghost:hover{background:var(--ink-700);color:var(--paper-50);}
.btn-sprout{background:var(--sprout-400);color:var(--ink-900);}
.btn-sprout:hover{background:#b6dd4b;}
.btn:active{transform:translateY(1px);}
.btn[disabled],.btn.is-disabled{opacity:.4;cursor:not-allowed;pointer-events:none;}
.btn-sm{padding:10px 18px;font-size:14px;min-height:38px;}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--ink-700);
  border-bottom:1px solid var(--ink-700);padding-bottom:3px;text-underline-offset:4px;
  transition:color .22s var(--ease),border-color .22s var(--ease);
}
.link-arrow:hover{color:var(--ink-900);border-color:var(--sprout-400);}
.link-arrow i{font-size:12px;transition:transform .22s var(--ease);}
.link-arrow:hover i{transform:translateX(4px);}

/* ============ 徽章 / 标签 ============ */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 13px;border-radius:999px;font-size:12px;font-weight:600;letter-spacing:.04em;
  background:var(--paper-100);color:var(--ink-700);
}
.badge-sprout{background:rgba(195,232,90,.26);color:#3E5A10;}
.badge-clay{background:rgba(217,107,69,.14);color:#9C4426;}
.tag-list{display:flex;flex-wrap:wrap;gap:10px;}
.tag{
  display:inline-flex;align-items:center;padding:7px 15px;border-radius:999px;
  border:1px solid var(--line-200);background:var(--paper-0);
  font-size:13px;color:var(--text-600);transition:border-color .22s var(--ease),color .22s var(--ease);
}
.tag:hover{border-color:var(--ink-500);color:var(--ink-700);}

/* ============ 面包屑 ============ */
.crumbs{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--text-400);letter-spacing:.02em;
  padding:28px 0 0;
}
.crumbs a{color:var(--text-400);transition:color .22s var(--ease);}
.crumbs a:hover{color:var(--ink-700);}
.crumbs i{font-size:10px;color:var(--mist-500);}
.crumbs .current{color:var(--text-400);max-width:340px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

/* ============ 文章头部 ============ */
.post-head{padding:22px 0 0;}
.post-head .badge{margin-bottom:18px;}
.post-title{
  font-size:clamp(28px,3.6vw,40px);
  font-weight:800;line-height:1.28;letter-spacing:-.02em;color:var(--text-900);
  margin-bottom:20px;
}
.post-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  font-size:13px;color:var(--text-400);letter-spacing:.04em;
  padding-bottom:26px;
}
.post-meta .dot{color:var(--mist-500);}
.post-meta i{margin-right:5px;color:var(--mist-500);font-size:12px;}
.post-rule{height:1px;background:var(--line-200);}

/* ============ 正文 ============ */
.article-main{padding:40px 0 24px;}
.article-body{min-height:340px;}
.prose{font-size:17px;line-height:1.95;color:var(--text-600);}
.prose > *:first-child{margin-top:0;}
.prose p{font-size:17px;line-height:1.95;margin:0 0 1.3em;color:var(--text-600);}
.prose h2{
  position:relative;font-size:clamp(22px,2.4vw,28px);font-weight:800;line-height:1.35;
  color:var(--text-900);margin:2.2em 0 .85em;padding-left:15px;
}
.prose h2::before{
  content:'';position:absolute;left:0;top:.28em;width:3px;height:22px;
  background:var(--sprout-400);border-radius:2px;
}
.prose h3{font-size:20px;font-weight:700;line-height:1.45;color:var(--text-900);margin:1.9em 0 .7em;}
.prose h4{font-size:17px;font-weight:700;color:var(--ink-700);margin:1.6em 0 .6em;font-family:var(--sans);}
.prose strong{color:var(--text-900);font-weight:700;}
.prose a{color:var(--ink-700);border-bottom:1px solid var(--sprout-400);transition:color .22s var(--ease);}
.prose a:hover{color:var(--ink-900);}
.prose ul,.prose ol{margin:0 0 1.4em;padding-left:0;list-style:none;}
.prose ol{counter-reset:olc;}
.prose ul li,.prose ol li{position:relative;padding-left:22px;margin-bottom:.7em;line-height:1.9;}
.prose ul li::before{
  content:'';position:absolute;left:2px;top:.78em;width:6px;height:6px;
  background:var(--sprout-400);border-radius:1px;
}
.prose ol li::before{
  counter-increment:olc;content:counter(olc,decimal-leading-zero);
  position:absolute;left:0;top:.1em;font-size:12px;font-weight:700;color:var(--mist-500);
  font-variant-numeric:tabular-nums;
}
.prose ol li{padding-left:34px;}
.prose blockquote{
  margin:1.7em 0;padding:20px 22px;background:var(--paper-100);
  border-left:3px solid var(--mist-500);border-radius:0 var(--radius-card) var(--radius-card) 0;
  color:var(--text-600);
}
.prose blockquote p:last-child{margin-bottom:0;}
.prose img{border-radius:var(--radius-card);margin:1.7em 0 .7em;border:1px solid var(--line-200);}
.prose figure{margin:1.8em 0;}
.prose figcaption,.prose img + em{
  display:block;text-align:center;font-size:13px;color:var(--text-400);
  margin-top:10px;font-style:normal;letter-spacing:.02em;
}
.prose code{
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  font-size:14px;background:var(--paper-100);color:var(--ink-700);
  padding:2px 6px;border-radius:2px;
}
.prose pre{
  background:var(--paper-100);border:1px solid var(--line-200);border-radius:var(--radius-card);
  padding:18px 20px;overflow-x:auto;font-size:14px;line-height:1.7;margin:1.6em 0;
}
.prose pre code{background:none;padding:0;}
.prose table{
  width:100%;margin:1.7em 0;font-size:15px;background:var(--paper-0);
  border:1px solid var(--line-200);border-radius:var(--radius-card);overflow:hidden;
}
.prose th,.prose td{padding:12px 16px;border-bottom:1px solid var(--line-200);text-align:left;vertical-align:top;}
.prose th{background:var(--paper-100);font-weight:700;color:var(--text-900);font-size:14px;}
.prose tr:last-child td{border-bottom:0;}
.prose hr{border:0;height:1px;background:var(--line-200);margin:2.2em 0;}
.prose .table-wrap{overflow-x:auto;}

/* ============ 文末 ============ */
.post-foot{padding:8px 0 0;}
.post-tags{padding:34px 0 6px;border-top:1px solid var(--line-200);margin-top:34px;}
.post-tags-label{font-size:13px;color:var(--text-400);letter-spacing:.04em;margin-bottom:14px;}

.related{padding:64px 0 20px;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:26px;}
.section-title{font-size:clamp(22px,2.4vw,28px);font-weight:800;line-height:1.3;}
.section-title span{display:block;font-family:var(--sans);font-size:13px;font-weight:400;color:var(--text-400);letter-spacing:.06em;margin-top:8px;}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.card{
  display:flex;flex-direction:column;background:var(--paper-0);
  border:1px solid var(--line-200);border-radius:var(--radius-card);overflow:hidden;
  transition:box-shadow .22s var(--ease),transform .22s var(--ease),border-color .22s var(--ease);
}
.card:hover{box-shadow:var(--shadow-hover);border-color:#D6D2C5;transform:translateY(-2px);}
.card-media{position:relative;aspect-ratio:16/10;background:var(--paper-100);overflow:hidden;}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease);}
.card:hover .card-media img{transform:scale(1.03);}
.card-body{padding:20px 20px 18px;display:flex;flex-direction:column;gap:10px;flex:1;}
.card-title{font-size:18px;font-weight:700;line-height:1.45;color:var(--text-900);font-family:var(--serif);}
.card:hover .card-title{color:var(--ink-700);}
.card-desc{font-size:14px;line-height:1.75;color:var(--text-600);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.card-meta{
  margin-top:auto;padding-top:12px;border-top:1px solid var(--line-200);
  display:flex;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--text-400);letter-spacing:.02em;
}
.card-meta i{color:var(--sprout-400);}

.end-cta{
  margin:56px 0 8px;padding:34px 36px;background:var(--paper-100);
  border:1px solid var(--line-200);border-radius:var(--radius-card);
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
}
.end-cta h3{font-size:20px;font-weight:800;line-height:1.4;margin-bottom:8px;}
.end-cta p{font-size:14px;color:var(--text-600);margin:0;}
.end-cta-actions{display:flex;gap:12px;flex-wrap:wrap;}

.empty-state{
  background:var(--paper-0);border:1px solid var(--line-200);border-radius:var(--radius-card);
  padding:48px 32px;text-align:center;
}
.empty-state i{font-size:26px;color:var(--mist-500);margin-bottom:16px;display:block;}
.empty-state h3{font-size:20px;font-weight:700;margin-bottom:10px;}
.empty-state p{font-size:15px;color:var(--text-400);margin-bottom:22px;}

.img-fallback{background:var(--paper-100);border:1px solid var(--line-200);}

/* ============ 页脚 ============ */
.site-footer{background:var(--ink-900);color:var(--paper-50);padding:72px 0 34px;margin-top:96px;}
.footer-top{display:flex;align-items:flex-start;justify-content:space-between;gap:28px;padding-bottom:38px;border-bottom:1px solid rgba(247,245,240,.14);}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.footer-brand .brand-mark{background:rgba(255,255,255,.04);border-color:rgba(195,232,90,.4);}
.footer-brand .brand-text{color:var(--paper-50);}
.footer-slogan{font-size:14px;color:var(--mist-500);letter-spacing:.02em;margin:0;}
.to-top{
  border:1px solid rgba(247,245,240,.28);color:var(--paper-50);
  padding:10px 20px;border-radius:var(--radius-btn);font-size:14px;min-height:44px;
  transition:background .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease);
}
.to-top:hover{background:var(--sprout-400);color:var(--ink-900);border-color:var(--sprout-400);}
.footer-cols{display:grid;grid-template-columns:repeat(4,1fr);gap:32px;padding:44px 0 38px;}
.footer-col h4{font-family:var(--sans);font-size:14px;font-weight:700;color:var(--paper-50);margin-bottom:16px;letter-spacing:.04em;}
.footer-col a{display:block;font-size:14px;line-height:2.2;color:var(--mist-500);transition:color .22s var(--ease);}
.footer-col a:hover{color:var(--sprout-400);}
.footer-col p{font-size:14px;line-height:2.1;color:var(--mist-500);margin:0;}
.footer-qr{
  width:120px;height:120px;border:1px dashed rgba(247,245,240,.24);border-radius:var(--radius-card);
  display:grid;place-items:center;text-align:center;font-size:13px;line-height:1.7;color:var(--mist-500);
}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding-top:24px;border-top:1px solid rgba(247,245,240,.14);
  font-size:13px;color:var(--mist-500);letter-spacing:.02em;
}

/* ============ 移动端抽屉 ============ */
@media (max-width:1024px){
  .nav-toggle{display:inline-flex;}
  .nav-cta .btn{display:none;}
  .nav-links{
    position:fixed;top:0;right:0;bottom:0;width:min(320px,86vw);
    background:var(--paper-0);flex-direction:column;align-items:stretch;gap:0;
    padding:96px 24px 32px;transform:translateX(101%);
    transition:transform .3s var(--ease);box-shadow:-12px 0 34px rgba(12,38,32,.10);
    overflow-y:auto;z-index:95;
  }
  .nav-links.is-open{transform:translateX(0);}
  .nav-link{
    display:flex;align-items:center;font-size:18px;line-height:56px;
    padding:0;border-bottom:1px solid var(--line-200);border-radius:0;color:var(--text-900);
  }
  .nav-link.is-active::after{left:0;right:auto;width:22px;bottom:6px;}
  .related-grid{grid-template-columns:1fr 1fr;}
  .footer-cols{grid-template-columns:repeat(2,1fr);}
}

@media (max-width:768px){
  .topbar{display:none;}
  .nav-inner{height:66px;}
  .brand-text{font-size:17px;}
  .related{padding:48px 0 12px;}
  .related-grid{grid-template-columns:1fr;}
  .end-cta{padding:26px 22px;flex-direction:column;align-items:flex-start;}
  .end-cta-actions{width:100%;}
  .end-cta-actions .btn{width:100%;}
  .post-title{font-size:clamp(24px,6vw,30px);}
  .article-body{padding:0;}
  .prose table{display:block;overflow-x:auto;white-space:nowrap;}
  .site-footer{padding:56px 0 28px;margin-top:64px;}
  .footer-top{flex-direction:column;align-items:flex-start;}
  .site-header.is-hidden{transform:none;}
}

@media (max-width:480px){
  body{font-size:15px;}
  .post-title{font-size:24px;}
  .prose p,.prose{font-size:16px;line-height:1.9;}
  .related-grid{grid-template-columns:1fr;}
  .footer-cols{grid-template-columns:1fr;gap:24px;}
  .btn{width:100%;}
  .btn-sm{width:auto;}
  .crumbs .current{max-width:160px;}
}

@media (prefers-reduced-motion: reduce){
  *,*::before,*::after{animation:none!important;transition:none!important;}
  html{scroll-behavior:auto;}
}

/* roulang page: category1 */
:root{
  --ink-900:#0C2620;
  --ink-700:#12372F;
  --ink-500:#1E4C41;
  --mist-500:#8FA9A0;
  --sprout-400:#C3E85A;
  --clay-400:#D96B45;
  --paper-0:#FFFFFF;
  --paper-50:#F7F5F0;
  --paper-100:#EEEBE3;
  --line-200:#E3E0D6;
  --text-900:#141A18;
  --text-600:#3A4442;
  --text-400:#6E7A76;
  --radius-card:6px;
  --radius-btn:4px;
  --radius-input:2px;
  --shadow-hover:0 10px 30px rgba(18,55,47,.08);
  --ease:cubic-bezier(.22,.61,.36,1);
  --container:1240px;
  --pad-x:clamp(20px,5vw,48px);
  --section-y:clamp(64px,8vw,112px);
  --font-sans:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --font-serif:"Noto Serif SC","Songti SC",serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.85;
  color:var(--text-600);
  background:var(--paper-50);
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button,input,textarea,select{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;color:var(--text-900);font-weight:800}
p{margin:0 0 1.2em}
p:last-child{margin-bottom:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--sprout-400);outline-offset:3px;border-radius:2px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 var(--pad-x)}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
}

/* ---------- 顶部信息条 ---------- */
.topbar{background:var(--ink-900);color:var(--paper-50);font-size:13px;letter-spacing:.04em}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;min-height:40px;gap:16px}
.topbar-note{color:rgba(247,245,240,.78)}
.topbar-actions{display:flex;align-items:center;gap:18px}
.topbar-link{color:var(--paper-50);border-bottom:1px solid rgba(195,232,90,.5);padding-bottom:2px;transition:color .2s var(--ease),border-color .2s var(--ease)}
.topbar-link:hover{color:var(--sprout-400);border-color:var(--sprout-400)}
.topbar-btn{
  display:inline-flex;align-items:center;min-height:26px;padding:3px 14px;
  border:1px solid rgba(247,245,240,.45);border-radius:var(--radius-btn);
  color:var(--paper-50);font-size:12.5px;transition:all .2s var(--ease);
}
.topbar-btn:hover{background:var(--sprout-400);border-color:var(--sprout-400);color:var(--ink-900)}

/* ---------- 主导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;background:var(--paper-50);
  border-bottom:1px solid transparent;transition:box-shadow .25s var(--ease),border-color .25s var(--ease),transform .3s var(--ease);
}
.site-header.is-scrolled{border-bottom-color:var(--line-200);box-shadow:0 6px 18px rgba(18,55,47,.06)}
.site-header.is-hidden{transform:translateY(-100%)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:28px;min-height:78px}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  display:inline-flex;align-items:center;justify-content:center;
  width:38px;height:38px;border-radius:var(--radius-card);
  background:var(--ink-700);flex-shrink:0;
}
.brand-mark svg{width:22px;height:22px;display:block}
.brand-text{
  font-family:var(--font-serif);font-size:20px;font-weight:800;color:var(--ink-700);
  letter-spacing:-.01em;white-space:nowrap;
}
.nav-links{display:flex;align-items:center;gap:34px;margin-left:auto;margin-right:auto}
.nav-link{
  position:relative;font-size:15px;font-weight:500;color:var(--text-600);
  padding:26px 0;transition:color .2s var(--ease);white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:20px;height:2px;
  background:var(--sprout-400);transform:scaleX(0);transform-origin:left center;
  transition:transform .24s var(--ease);
}
.nav-link:hover{color:var(--ink-700)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--ink-700);font-weight:700}
.nav-link.is-active::after{transform:scaleX(1)}
.header-actions{display:flex;align-items:center;gap:12px;flex-shrink:0}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line-200);background:var(--paper-0);
  border-radius:var(--radius-btn);cursor:pointer;position:relative;
}
.nav-toggle span{
  position:absolute;left:12px;right:12px;height:1.6px;background:var(--ink-700);
  transition:transform .24s var(--ease),opacity .24s var(--ease);
}
.nav-toggle span:nth-child(1){top:16px}
.nav-toggle span:nth-child(2){top:21px}
.nav-toggle span:nth-child(3){top:26px}
.nav-toggle.is-open span:nth-child(1){transform:translateY(5px) rotate(45deg)}
.nav-toggle.is-open span:nth-child(2){opacity:0}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-5px) rotate(-45deg)}
.mobile-drawer{
  display:none;border-top:1px solid var(--line-200);background:var(--paper-0);
  padding:8px var(--pad-x) 24px;
}
.mobile-drawer.is-open{display:block}
.mobile-drawer .nav-link{
  display:block;padding:0;line-height:56px;font-size:18px;border-bottom:1px solid var(--line-200);
}
.mobile-drawer .nav-link::after{display:none}
.mobile-drawer .nav-link.is-active{color:var(--ink-700)}
.mobile-drawer .btn{width:100%;margin-top:20px;justify-content:center}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 28px;border-radius:var(--radius-btn);border:1px solid transparent;
  font-size:15px;font-weight:600;cursor:pointer;position:relative;
  transition:background-color .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);
  min-height:44px;
}
.btn-primary{background:var(--ink-700);color:var(--paper-50);overflow:hidden}
.btn-primary::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:100%;
  background:var(--sprout-400);transform:scaleX(0);transform-origin:left center;
  transition:transform .24s var(--ease);
}
.btn-primary:hover{background:var(--ink-900)}
.btn-primary:hover::after{transform:scaleX(1)}
.btn-primary:active{transform:translateY(1px)}
.btn-accent{background:var(--sprout-400);color:var(--ink-900)}
.btn-accent:hover{background:#b3da45}
.btn-accent:active{transform:translateY(1px)}
.btn-ghost{background:transparent;border-color:var(--ink-700);color:var(--ink-700)}
.btn-ghost:hover{background:var(--ink-700);color:var(--paper-50)}
.btn-ghost:active{transform:translateY(1px)}
.btn-sm{padding:9px 18px;font-size:14px;min-height:38px}
.btn[disabled],.btn.is-disabled{opacity:.4;cursor:not-allowed;pointer-events:none}
.btn.is-loading{color:transparent;pointer-events:none}
.btn.is-loading::before{
  content:"";position:absolute;width:16px;height:16px;border-radius:50%;
  border:2px solid rgba(247,245,240,.35);border-top-color:var(--sprout-400);
  animation:spin .8s linear infinite;
}
@keyframes spin{to{transform:rotate(360deg)}}
.text-link{
  display:inline-flex;align-items:center;gap:6px;color:var(--ink-700);font-weight:600;
  border-bottom:1px solid var(--mist-500);padding-bottom:3px;
  transition:color .2s var(--ease),border-color .2s var(--ease);
}
.text-link:hover{color:var(--text-900);border-color:var(--sprout-400)}

/* ---------- 通用板块 ---------- */
.section{padding:var(--section-y) 0}
.section--plain{background:var(--paper-50)}
.section--soft{background:var(--paper-100)}
.section--dark{background:var(--ink-900);color:rgba(247,245,240,.86)}
.section--dark h2,.section--dark h3{color:var(--paper-50)}
.section-head{margin-bottom:44px;max-width:780px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;
  letter-spacing:.08em;color:var(--ink-500);margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--sprout-400)}
h1{font-family:var(--font-serif);font-size:clamp(30px,4.4vw,44px);font-weight:800;line-height:1.18;letter-spacing:-.02em}
h2{font-family:var(--font-serif);font-size:clamp(26px,3.2vw,36px);font-weight:800;line-height:1.25;letter-spacing:-.01em;margin-bottom:16px}
h3{font-size:clamp(18px,1.6vw,22px);font-weight:600;line-height:1.4}
.lead{font-size:17px;color:var(--text-600);max-width:760px}
.section--dark .lead{color:rgba(247,245,240,.78)}
.h2-rule{position:relative;padding-left:18px}
.h2-rule::before{
  content:"";position:absolute;left:0;top:.22em;width:3px;height:.86em;background:var(--sprout-400);
}
.meta-note{font-size:13px;letter-spacing:.04em;color:var(--text-400)}
.divider{height:1px;background:var(--line-200);border:0;margin:0}

/* ---------- 徽章 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;padding:4px 12px;border-radius:999px;
  font-size:12.5px;font-weight:600;letter-spacing:.03em;
}
.badge--topic{background:rgba(30,76,65,.08);color:var(--ink-500)}
.badge--event{background:rgba(195,232,90,.28);color:#3C5410}
.badge--limit{background:rgba(217,107,69,.12);color:var(--clay-400)}

/* ---------- 面包屑 ---------- */
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:13px;color:var(--text-400);margin-bottom:22px}
.breadcrumb a{color:var(--text-600);transition:color .2s var(--ease)}
.breadcrumb a:hover{color:var(--ink-700)}
.breadcrumb .sep{color:var(--mist-500)}
.breadcrumb .current{color:var(--text-400)}

/* ---------- 页头 Hero ---------- */
.cat-hero{background:var(--paper-50);padding:clamp(36px,5vw,60px) 0 var(--section-y)}
.cat-hero-grid{display:grid;grid-template-columns:8fr 4fr;gap:48px;align-items:center}
.cat-hero-copy h1{margin-bottom:18px}
.cat-hero-copy .lead{font-size:16.5px;max-width:620px;margin-bottom:26px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;align-items:center}
.hero-points{display:flex;flex-wrap:wrap;gap:0;margin-top:30px;border-top:1px solid var(--line-200);padding-top:20px}
.hero-point{display:flex;flex-direction:column;gap:2px;padding-right:26px;margin-right:26px;border-right:1px solid var(--line-200)}
.hero-point:last-child{border-right:0;margin-right:0;padding-right:0}
.hero-point strong{font-family:var(--font-serif);font-size:20px;font-weight:800;color:var(--ink-700);font-variant-numeric:tabular-nums}
.hero-point span{font-size:13px;color:var(--text-400)}
.media{
  position:relative;background:var(--paper-100);border:1px solid var(--line-200);
  border-radius:var(--radius-card);overflow:hidden;
}
.media img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease)}
.media.is-err img{opacity:0}
.cat-hero-media{aspect-ratio:4/3;min-height:240px}
.cat-hero-media::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(18,55,47,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(18,55,47,.06) 1px,transparent 1px);
  background-size:38px 38px;
}

/* ---------- 左文右图 · 概念说明 ---------- */
.about-grid{display:grid;grid-template-columns:7fr 5fr;gap:56px;align-items:start}
.about-copy p{font-size:16.5px;max-width:640px}
.about-aside{background:var(--paper-0);border:1px solid var(--line-200);border-radius:var(--radius-card);padding:28px}
.about-aside h3{margin-bottom:14px;font-size:18px}
.aside-list li{
  display:flex;gap:12px;padding:12px 0;border-bottom:1px solid var(--line-200);
  font-size:15px;color:var(--text-600);
}
.aside-list li:last-child{border-bottom:0;padding-bottom:0}
.aside-list .dot{
  width:6px;height:6px;background:var(--sprout-400);flex-shrink:0;margin-top:11px;
  transform:rotate(45deg);
}
.aside-list strong{color:var(--text-900);font-weight:600}

/* ---------- 编号长条列表 ---------- */
.numbered{margin-top:8px;border-top:1px solid var(--line-200)}
.num-item{
  display:grid;grid-template-columns:88px minmax(0,1fr) 260px;
  gap:32px;align-items:start;padding:32px 20px 32px 0;
  border-bottom:1px solid var(--line-200);
  transition:background-color .24s var(--ease),transform .24s var(--ease);
}
.num-item:hover{background:var(--paper-100);transform:translateX(4px)}
.num-index{
  font-family:var(--font-serif);font-size:40px;font-weight:800;line-height:1;
  color:var(--sprout-400);font-variant-numeric:tabular-nums;
}
.num-body h3{margin-bottom:8px}
.num-body p{font-size:15.5px;margin:0;max-width:560px}
.num-side{
  font-size:14px;color:var(--text-400);border-left:1px solid var(--line-200);
  padding-left:24px;
}
.num-side strong{display:block;color:var(--ink-700);font-size:15px;font-weight:600;margin-bottom:4px}

/* ---------- 细节图位 ---------- */
.figure-wide{margin-top:12px}
.figure-wide .media{aspect-ratio:16/7;min-height:220px}
.figure-wide figcaption{
  text-align:center;font-size:13px;color:var(--text-400);margin-top:14px;
}

/* ---------- 对照表 ---------- */
.table-scroll{overflow-x:auto;border:1px solid var(--line-200);border-radius:var(--radius-card);background:var(--paper-0)}
table{border-collapse:collapse;width:100%;min-width:640px;font-size:15px}
thead th{
  background:var(--paper-100);color:var(--text-900);font-weight:700;text-align:left;
  padding:16px 20px;border-bottom:1px solid var(--line-200);white-space:nowrap;
}
tbody td{padding:16px 20px;border-bottom:1px solid var(--line-200);color:var(--text-600);vertical-align:top}
tbody tr:last-child td{border-bottom:0}
tbody tr:hover{background:rgba(238,235,227,.5)}
td .badge{margin-top:2px}
.table-hint{font-size:13px;color:var(--text-400);margin-top:12px}

/* ---------- 数据条带 ---------- */
.stat-band{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line-200);border:1px solid var(--line-200);border-radius:var(--radius-card);overflow:hidden;margin-top:36px}
.stat-cell{background:var(--paper-0);padding:26px 24px}
.stat-cell strong{
  display:block;font-family:var(--font-serif);font-size:30px;font-weight:800;color:var(--ink-700);
  font-variant-numeric:tabular-nums;line-height:1.1;margin-bottom:6px;
}
.stat-cell span{font-size:13.5px;color:var(--text-400)}

/* ---------- 排查清单（两栏错位） ---------- */
.check-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px 32px;margin-top:34px}
.check-item{
  background:var(--paper-0);border:1px solid var(--line-200);border-radius:var(--radius-card);
  padding:24px 26px;transition:box-shadow .22s var(--ease),transform .22s var(--ease);
}
.check-item:hover{box-shadow:var(--shadow-hover);transform:translateY(-2px)}
.check-item h3{font-size:17px;margin-bottom:8px;display:flex;align-items:center;gap:10px}
.check-item h3::before{content:"";width:8px;height:8px;background:var(--sprout-400);flex-shrink:0;transform:rotate(45deg)}
.check-item p{font-size:15px;margin:0}

/* ---------- 行动横幅 ---------- */
.cta-band{
  background:var(--paper-100);border-top:1px solid var(--line-200);border-bottom:1px solid var(--line-200);
}
.cta-band-inner{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:28px;
  padding:clamp(36px,5vw,56px) 0;
}
.cta-band-copy h2{font-size:clamp(22px,2.6vw,30px);margin-bottom:8px}
.cta-band-copy p{font-size:15.5px;margin:0;color:var(--text-600);max-width:620px}
.cta-band-actions{display:flex;flex-wrap:wrap;gap:14px;align-items:center}

/* ---------- 相关分类卡片 ---------- */
.related-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;margin-top:36px}
.related-card{
  display:grid;grid-template-columns:180px minmax(0,1fr);gap:22px;align-items:center;
  background:var(--paper-0);border:1px solid var(--line-200);border-radius:var(--radius-card);
  padding:20px;transition:box-shadow .22s var(--ease),transform .22s var(--ease);
}
.related-card:hover{box-shadow:var(--shadow-hover);transform:translateY(-2px)}
.related-card:hover .media img{transform:scale(1.03)}
.related-card .media{aspect-ratio:16/10}
.related-card h3{margin-bottom:8px}
.related-card p{font-size:14.5px;margin:0 0 10px}
.related-arrow{font-size:14px;font-weight:600;color:var(--ink-700);display:inline-flex;align-items:center;gap:6px}
.related-card:hover .related-arrow{color:var(--ink-900)}

/* ---------- FAQ ---------- */
.faq-list{border-top:1px solid var(--line-200);margin-top:32px}
.faq-item{border-bottom:1px solid var(--line-200)}
.faq-q{
  width:100%;display:flex;align-items:center;gap:18px;background:none;border:0;text-align:left;
  padding:0 4px;min-height:64px;cursor:pointer;color:var(--text-900);font-size:16.5px;font-weight:600;
  transition:color .2s var(--ease);
}
.faq-q:hover{color:var(--ink-700)}
.faq-num{font-family:var(--font-serif);color:var(--mist-500);font-variant-numeric:tabular-nums;font-weight:700;flex-shrink:0}
.faq-sign{
  margin-left:auto;flex-shrink:0;width:22px;height:22px;position:relative;
  transition:transform .28s var(--ease);
}
.faq-sign::before,.faq-sign::after{
  content:"";position:absolute;background:var(--ink-500);border-radius:1px;
}
.faq-sign::before{left:0;right:0;top:10px;height:1.6px}
.faq-sign::after{top:0;bottom:0;left:10px;width:1.6px}
.faq-item.is-open .faq-sign{transform:rotate(90deg)}
.faq-item.is-open .faq-sign::after{opacity:0}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s var(--ease),opacity .28s var(--ease);opacity:0}
.faq-item.is-open .faq-a{opacity:1}
.faq-a-inner{padding:0 4px 26px 42px;font-size:15.5px;color:var(--text-600);max-width:820px}

/* ---------- 空态 / 提示条 ---------- */
.notice-bar{
  display:none;align-items:center;gap:14px;background:rgba(217,107,69,.1);
  border-top:1px solid rgba(217,107,69,.28);color:var(--clay-400);
  font-size:13.5px;padding:9px var(--pad-x);
}
.notice-bar.is-visible{display:flex}
.notice-bar button{margin-left:auto;background:none;border:0;cursor:pointer;color:inherit;font-size:16px;line-height:1}
.empty-state{
  border:1px dashed var(--line-200);background:var(--paper-100);border-radius:var(--radius-card);
  padding:36px 24px;text-align:center;color:var(--text-400);font-size:14.5px;
}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink-900);color:rgba(247,245,240,.78);padding:clamp(48px,6vw,72px) 0 28px;font-size:14px}
.footer-top{display:flex;justify-content:space-between;align-items:flex-start;gap:24px;flex-wrap:wrap}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:12px}
.footer-brand .brand-mark{background:rgba(247,245,240,.08)}
.footer-brand .brand-text{color:var(--paper-50);font-family:var(--font-serif);font-size:19px;font-weight:800}
.footer-slogan{margin:0;font-size:14px;color:rgba(247,245,240,.66)}
.to-top{
  background:transparent;border:1px solid rgba(247,245,240,.3);border-radius:var(--radius-btn);
  color:var(--paper-50);padding:9px 18px;font-size:13.5px;cursor:pointer;min-height:40px;
  transition:all .2s var(--ease);
}
.to-top:hover{background:var(--sprout-400);border-color:var(--sprout-400);color:var(--ink-900)}
.footer-cols{
  display:grid;grid-template-columns:repeat(4,1fr);gap:32px;
  margin-top:44px;padding-top:40px;border-top:1px solid rgba(247,245,240,.12);
}
.footer-col h4{color:var(--paper-50);font-size:14px;font-weight:700;margin-bottom:14px;letter-spacing:.02em}
.footer-col a,.footer-col p{display:block;font-size:14px;line-height:2.2;color:rgba(247,245,240,.72);margin:0;transition:color .2s var(--ease)}
.footer-col a:hover{color:var(--sprout-400)}
.footer-qr{
  width:104px;height:104px;border:1px solid rgba(247,245,240,.25);border-radius:var(--radius-card);
  display:flex;align-items:center;justify-content:center;text-align:center;
  font-size:12.5px;line-height:1.6;color:rgba(247,245,240,.6);
}
.footer-bottom{
  margin-top:40px;padding-top:22px;border-top:1px solid rgba(247,245,240,.12);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;
  color:rgba(247,245,240,.55);
}

/* ---------- 进场动画 ---------- */
.reveal{opacity:0;transform:translateY(14px);transition:opacity .52s var(--ease),transform .52s var(--ease)}
.reveal.is-in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none}
}

/* ---------- 响应式 ---------- */
@media (max-width:1200px){
  .num-item{grid-template-columns:72px minmax(0,1fr) 220px;gap:24px}
  .stat-band{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:1024px){
  .nav-links{display:none}
  .nav-toggle{display:block}
  .header-actions .btn{display:none}
  .cat-hero-grid{grid-template-columns:1fr;gap:32px}
  .cat-hero-media{aspect-ratio:16/9}
  .about-grid{grid-template-columns:1fr;gap:32px}
  .num-item{grid-template-columns:64px minmax(0,1fr);gap:20px}
  .num-side{grid-column:2;border-left:0;border-top:1px solid var(--line-200);padding:14px 0 0;margin-top:6px}
  .footer-cols{grid-template-columns:repeat(2,1fr);gap:28px}
}
@media (max-width:768px){
  .topbar{display:none}
  .section{padding:64px 0}
  .cat-hero{padding:28px 0 64px}
  .check-grid{grid-template-columns:1fr}
  .related-grid{grid-template-columns:1fr}
  .related-card{grid-template-columns:1fr;gap:16px}
  .related-card .media{aspect-ratio:16/9}
  .stat-band{grid-template-columns:1fr}
  .cta-band-inner{flex-direction:column;align-items:flex-start}
  .cta-band-actions{width:100%}
  .cta-band-actions .btn{width:100%}
  .faq-a-inner{padding-left:4px}
  .footer-cols{grid-template-columns:1fr;gap:0}
  .footer-col{border-bottom:1px solid rgba(247,245,240,.12);padding:16px 0}
  .footer-col:last-child{border-bottom:0}
  .footer-col h4{margin-bottom:6px}
  .hero-points{gap:18px}
  .hero-point{border-right:0;padding-right:0;margin-right:0}
}
@media (max-width:480px){
  .header-inner{min-height:66px;gap:14px}
  .brand-text{font-size:17px}
  h1{font-size:28px}
  .num-item{grid-template-columns:1fr;gap:12px;padding:26px 16px 26px 0}
  .num-index{font-size:32px}
  .num-side{grid-column:1}
  .btn{width:100%}
  .hero-actions{width:100%}
  .hero-actions .btn{width:100%}
  .figure-wide .media{aspect-ratio:4/3}
}

/* roulang page: category2 */
:root{
  --ink-900:#0C2620;
  --ink-700:#12372F;
  --ink-500:#1E4C41;
  --mist-500:#8FA9A0;
  --sprout-400:#C3E85A;
  --clay-400:#D96B45;
  --paper-0:#FFFFFF;
  --paper-50:#F7F5F0;
  --paper-100:#EEEBE3;
  --line-200:#E3E0D6;
  --text-900:#141A18;
  --text-600:#3A4442;
  --text-400:#6E7A76;

  --radius-card:6px;
  --radius-btn:4px;
  --radius-input:2px;
  --shadow-hover:0 10px 30px rgba(18,55,47,.08);

  --container:1240px;
  --pad-x:clamp(20px,5vw,48px);
  --section-y:clamp(64px,8vw,110px);
  --ease:cubic-bezier(.22,.61,.36,1);

  --font-sans:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --font-serif:"Noto Serif SC","Songti SC",serif;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.85;
  color:var(--text-600);
  background:var(--paper-50);
  font-variant-numeric:tabular-nums;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button,input,textarea,select{font:inherit;color:inherit;}
button{cursor:pointer;}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0;}
ul,ol{padding:0;list-style:none;}
h1,h2,h3,h4{color:var(--text-900);}
::selection{background:var(--sprout-400);color:var(--ink-900);}

.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding-left:var(--pad-x);
  padding-right:var(--pad-x);
}

/* ---------- 顶部信息条 ---------- */
.info-bar{
  background:var(--ink-900);
  color:var(--paper-50);
  font-size:13px;
  letter-spacing:.04em;
}
.info-bar .container{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  min-height:40px;
}
.info-bar .info-left{color:rgba(247,245,240,.78);}
.info-bar .info-right{display:flex;align-items:center;gap:18px;}
.info-bar a.link-plain{
  color:var(--paper-50);
  border-bottom:1px solid rgba(195,232,90,.5);
  padding-bottom:1px;
  transition:color .22s var(--ease),border-color .22s var(--ease);
}
.info-bar a.link-plain:hover{color:var(--sprout-400);border-color:var(--sprout-400);}
.btn-mini{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-height:26px;
  padding:0 12px;
  border:1px solid rgba(195,232,90,.7);
  border-radius:var(--radius-btn);
  color:var(--sprout-400);
  background:transparent;
  transition:background .22s var(--ease),color .22s var(--ease);
}
.btn-mini:hover{background:var(--sprout-400);color:var(--ink-900);}

/* ---------- 主导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:var(--paper-50);
  border-bottom:1px solid transparent;
  transition:border-color .25s var(--ease),box-shadow .25s var(--ease),transform .3s var(--ease);
}
.site-header.is-scrolled{
  border-bottom-color:var(--line-200);
  box-shadow:0 6px 18px rgba(18,55,47,.06);
}
.site-header.is-hidden{transform:translateY(-100%);}
.nav-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  min-height:78px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
}
.brand-mark{
  width:36px;height:36px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border:1px solid var(--line-200);
  border-radius:var(--radius-card);
  background:var(--ink-700);
}
.brand-mark svg{width:20px;height:20px;}
.brand-text{
  font-family:var(--font-serif);
  font-weight:800;
  font-size:19px;
  letter-spacing:-.01em;
  color:var(--ink-900);
  white-space:nowrap;
}
.nav-links{
  display:flex;
  align-items:center;
  gap:6px;
  flex:1;
  justify-content:center;
}
.nav-link{
  position:relative;
  display:inline-flex;
  align-items:center;
  min-height:44px;
  padding:0 14px;
  font-size:15px;
  font-weight:500;
  color:var(--text-600);
  transition:color .2s var(--ease);
}
.nav-link::after{
  content:"";
  position:absolute;
  left:14px;right:14px;bottom:8px;
  height:2px;
  background:var(--sprout-400);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .22s var(--ease);
}
.nav-link:hover{color:var(--ink-700);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--ink-700);font-weight:700;}
.nav-link.is-active::after{transform:scaleX(1);}
.nav-actions{display:flex;align-items:center;gap:12px;flex-shrink:0;}

/* ---------- 按钮体系 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:44px;
  padding:14px 28px;
  border:1px solid transparent;
  border-radius:var(--radius-btn);
  font-size:15px;
  font-weight:600;
  line-height:1;
  text-align:center;
  transition:background .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease),transform .12s var(--ease);
}
.btn-primary{background:var(--ink-700);color:var(--paper-50);}
.btn-primary:hover{background:var(--ink-500);box-shadow:var(--shadow-hover);}
.btn-accent{background:var(--sprout-400);color:var(--ink-900);}
.btn-accent:hover{background:#b2d94b;box-shadow:var(--shadow-hover);}
.btn-ghost{
  background:transparent;
  border-color:var(--ink-700);
  color:var(--ink-700);
}
.btn-ghost:hover{background:var(--ink-700);color:var(--paper-50);}
.btn:active{transform:translateY(1px);}
.btn:focus-visible,.nav-link:focus-visible,.text-link:focus-visible,.faq-question:focus-visible,.to-top:focus-visible,.card-link:focus-visible{
  outline:2px solid var(--sprout-400);
  outline-offset:2px;
}
.btn[disabled],.btn.is-disabled{opacity:.4;cursor:not-allowed;box-shadow:none;transform:none;}
.btn.is-loading{position:relative;color:transparent;}
.btn.is-loading::after{
  content:"";
  position:absolute;
  width:16px;height:16px;
  border:2px solid rgba(247,245,240,.45);
  border-top-color:var(--paper-50);
  border-radius:50%;
  animation:spin .8s linear infinite;
}
@keyframes spin{to{transform:rotate(360deg);}}
.text-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  color:var(--ink-700);
  font-weight:600;
  border-bottom:1px solid var(--mist-500);
  padding-bottom:2px;
  transition:color .2s var(--ease),border-color .2s var(--ease);
}
.text-link:hover{color:var(--ink-500);border-color:var(--sprout-400);}

/* ---------- 徽章 ---------- */
.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:4px 12px;
  border-radius:999px;
  font-size:12px;
  font-weight:600;
  letter-spacing:.04em;
  line-height:1.6;
}
.badge-cat{background:var(--paper-100);color:var(--ink-700);}
.badge-event{background:rgba(195,232,90,.28);color:var(--ink-900);}
.badge-limit{background:rgba(217,107,69,.14);color:var(--clay-400);}

/* ---------- 页头 Hero（上文下图） ---------- */
.page-hero{
  background:var(--paper-50);
  padding:clamp(40px,5vw,64px) 0 0;
  border-bottom:1px solid var(--line-200);
}
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--text-400);
  letter-spacing:.04em;
  margin-bottom:22px;
}
.breadcrumb a{color:var(--text-600);transition:color .2s var(--ease);}
.breadcrumb a:hover{color:var(--ink-700);}
.breadcrumb .sep{color:var(--mist-500);}
.breadcrumb .current{color:var(--text-400);}
.hero-copy{max-width:820px;}
.eyebrow{
  display:inline-block;
  font-size:13px;
  font-weight:600;
  letter-spacing:.08em;
  color:var(--ink-500);
  border-left:3px solid var(--sprout-400);
  padding-left:10px;
  margin-bottom:18px;
}
.page-hero h1{
  font-family:var(--font-serif);
  font-size:clamp(30px,4.4vw,44px);
  font-weight:800;
  line-height:1.18;
  letter-spacing:-.02em;
}
.page-hero .lead{
  margin-top:18px;
  font-size:17px;
  line-height:1.8;
  color:var(--text-600);
  max-width:640px;
}
.hero-figure{
  margin-top:clamp(32px,4vw,52px);
  border-radius:var(--radius-card) var(--radius-card) 0 0;
  overflow:hidden;
  border:1px solid var(--line-200);
  border-bottom:none;
  background:var(--paper-100);
}
.hero-figure img{
  width:100%;
  height:clamp(200px,32vw,380px);
  object-fit:cover;
  border-radius:0;
}
.hero-figure figcaption{
  padding:12px 20px;
  font-size:13px;
  color:var(--text-400);
  background:var(--paper-0);
  border-top:1px solid var(--line-200);
}

/* ---------- 通用板块 ---------- */
.section{padding:var(--section-y) 0;}
.section-alt{background:var(--paper-100);}
.section-line{border-top:1px solid var(--line-200);}
.section-head{max-width:760px;margin-bottom:clamp(32px,4vw,52px);}
.section-head h2{
  font-family:var(--font-serif);
  font-size:clamp(26px,3vw,36px);
  font-weight:800;
  line-height:1.25;
  letter-spacing:-.01em;
  padding-left:16px;
  position:relative;
}
.section-head h2::before{
  content:"";
  position:absolute;
  left:0;top:.18em;
  width:3px;height:.9em;
  background:var(--sprout-400);
}
.section-head p{
  margin-top:16px;
  color:var(--text-400);
  font-size:14px;
  letter-spacing:.04em;
}
.reveal{opacity:0;transform:translateY(14px);}
.reveal.is-in{opacity:1;transform:none;transition:opacity .52s var(--ease),transform .52s var(--ease);}

/* ---------- 概念说明：双栏错位 ---------- */
.concept{
  display:grid;
  grid-template-columns:minmax(220px,3fr) 9fr;
  gap:clamp(24px,4vw,64px);
  align-items:start;
}
.concept .concept-aside{
  border-left:1px solid var(--line-200);
  padding-left:20px;
}
.concept .concept-aside strong{
  display:block;
  font-family:var(--font-serif);
  font-size:20px;
  color:var(--ink-700);
  margin-bottom:8px;
}
.concept .concept-aside span{
  font-size:13px;
  color:var(--text-400);
  letter-spacing:.04em;
}
.concept-body p{margin-bottom:1.2em;}
.concept-body p:last-child{margin-bottom:0;}
.concept-points{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:1px;
  margin-top:34px;
  background:var(--line-200);
  border:1px solid var(--line-200);
  border-radius:var(--radius-card);
  overflow:hidden;
}
.concept-points li{
  background:var(--paper-0);
  padding:22px 20px;
}
.concept-points li b{
  display:block;
  font-size:15px;
  color:var(--ink-700);
  margin-bottom:6px;
}
.concept-points li span{
  font-size:13.5px;
  color:var(--text-400);
  line-height:1.7;
  display:block;
}

/* ---------- 数据条带（深色整幅） ---------- */
.data-band{
  background:var(--ink-900);
  color:var(--paper-50);
  padding:clamp(44px,5vw,68px) 0;
}
.data-band .band-head{
  display:flex;
  flex-wrap:wrap;
  align-items:baseline;
  justify-content:space-between;
  gap:12px;
  margin-bottom:34px;
}
.data-band .band-head h2{
  color:var(--paper-50);
  font-family:var(--font-serif);
  font-size:clamp(22px,2.4vw,28px);
  font-weight:800;
}
.data-band .band-head span{
  color:var(--mist-500);
  font-size:13px;
  letter-spacing:.04em;
}
.data-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:1px;
  background:rgba(255,255,255,.12);
}
.data-grid li{
  background:var(--ink-900);
  padding:24px 20px;
}
.data-grid .num{
  font-family:var(--font-serif);
  font-size:clamp(26px,3vw,38px);
  font-weight:900;
  color:var(--sprout-400);
  line-height:1.1;
  letter-spacing:-.02em;
}
.data-grid .num small{
  font-family:var(--font-sans);
  font-size:14px;
  font-weight:600;
  margin-left:4px;
  color:var(--mist-500);
}
.data-grid .label{
  margin-top:10px;
  font-size:14px;
  color:var(--paper-50);
}
.data-grid .note{
  margin-top:6px;
  font-size:12.5px;
  color:var(--mist-500);
  line-height:1.7;
}

/* ---------- 编号长条列表（流程） ---------- */
.flow-list{border-top:1px solid var(--line-200);}
.flow-item{
  display:grid;
  grid-template-columns:1fr 6fr 4fr;
  gap:24px;
  align-items:start;
  padding:28px 20px;
  border-bottom:1px solid var(--line-200);
  transition:background .22s var(--ease),transform .22s var(--ease);
}
.flow-item:hover{background:var(--paper-100);transform:translateX(4px);}
.flow-item .idx{
  font-family:var(--font-serif);
  font-size:clamp(24px,2.6vw,32px);
  font-weight:900;
  color:var(--sprout-400);
  line-height:1;
}
.flow-item h3{
  font-size:clamp(18px,1.6vw,21px);
  font-weight:600;
  line-height:1.4;
  margin-bottom:10px;
}
.flow-item p{font-size:15px;color:var(--text-600);}
.flow-item .side{
  font-size:13.5px;
  color:var(--text-400);
  border-left:1px solid var(--line-200);
  padding-left:20px;
}
.flow-item .side b{display:block;color:var(--ink-700);font-weight:600;margin-bottom:4px;font-size:13.5px;}

/* ---------- 细节图位 ---------- */
.detail-figure{
  border:1px solid var(--line-200);
  border-radius:var(--radius-card);
  overflow:hidden;
  background:var(--paper-0);
}
.detail-figure img{
  width:100%;
  height:clamp(210px,30vw,360px);
  object-fit:cover;
}
.detail-figure figcaption{
  padding:16px 22px;
  font-size:13.5px;
  color:var(--text-400);
  border-top:1px solid var(--line-200);
  background:var(--paper-50);
}
.detail-notes{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:28px 40px;
  margin-top:34px;
}
.detail-notes li{
  padding-left:18px;
  position:relative;
  font-size:15px;
}
.detail-notes li::before{
  content:"";
  position:absolute;
  left:0;top:.62em;
  width:7px;height:7px;
  background:var(--sprout-400);
  border-radius:1px;
}
.detail-notes li b{color:var(--ink-700);font-weight:600;}

/* ---------- 清单表格 ---------- */
.table-wrap{
  overflow-x:auto;
  border:1px solid var(--line-200);
  border-radius:var(--radius-card);
  background:var(--paper-0);
  -webkit-overflow-scrolling:touch;
}
table.benefit-table{
  width:100%;
  min-width:680px;
  border-collapse:collapse;
  font-size:14.5px;
}
table.benefit-table th,
table.benefit-table td{
  text-align:left;
  padding:16px 20px;
  border-bottom:1px solid var(--line-200);
  vertical-align:top;
}
table.benefit-table thead th{
  background:var(--paper-100);
  color:var(--ink-700);
  font-weight:700;
  font-size:14px;
  letter-spacing:.02em;
}
table.benefit-table tbody tr:last-child td{border-bottom:none;}
table.benefit-table tbody tr:hover{background:var(--paper-50);}
table.benefit-table td:first-child{color:var(--ink-700);font-weight:600;}

/* ---------- 行动区（浅底横幅） ---------- */
.cta-banner{
  background:var(--paper-100);
  border:1px solid var(--line-200);
  border-radius:var(--radius-card);
  padding:clamp(28px,4vw,46px);
  display:grid;
  grid-template-columns:minmax(0,7fr) minmax(0,5fr);
  gap:28px;
  align-items:center;
}
.cta-banner h2{
  font-family:var(--font-serif);
  font-size:clamp(22px,2.4vw,30px);
  font-weight:800;
  line-height:1.3;
  margin-bottom:12px;
}
.cta-banner p{font-size:15px;color:var(--text-600);}
.cta-banner .cta-actions{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  align-items:center;
  justify-content:flex-end;
}

/* ---------- FAQ ---------- */
.faq-list{border-top:1px solid var(--line-200);}
.faq-item{border-bottom:1px solid var(--line-200);}
.faq-question{
  width:100%;
  min-height:64px;
  display:flex;
  align-items:center;
  gap:18px;
  padding:14px 4px;
  background:none;
  border:none;
  text-align:left;
  font-size:16px;
  font-weight:600;
  color:var(--text-900);
  transition:color .2s var(--ease);
}
.faq-question:hover{color:var(--ink-700);}
.faq-question .q-idx{
  font-family:var(--font-serif);
  font-weight:700;
  font-size:15px;
  color:var(--mist-500);
  flex-shrink:0;
  width:28px;
}
.faq-question .q-text{flex:1;line-height:1.6;}
.faq-question .q-icon{
  flex-shrink:0;
  width:22px;height:22px;
  position:relative;
  transition:transform .28s var(--ease);
}
.faq-question .q-icon::before,
.faq-question .q-icon::after{
  content:"";
  position:absolute;
  background:var(--ink-700);
  border-radius:1px;
}
.faq-question .q-icon::before{left:0;top:10px;width:22px;height:2px;}
.faq-question .q-icon::after{left:10px;top:0;width:2px;height:22px;transition:opacity .28s var(--ease);}
.faq-item.is-open .faq-question .q-icon{transform:rotate(90deg);}
.faq-item.is-open .faq-question .q-icon::after{opacity:0;}
.faq-answer{
  max-height:0;
  overflow:hidden;
  transition:max-height .28s var(--ease),opacity .28s var(--ease);
  opacity:0;
}
.faq-item.is-open .faq-answer{opacity:1;}
.faq-answer-inner{
  padding:0 4px 26px 46px;
  font-size:15px;
  color:var(--text-600);
  max-width:760px;
}

/* ---------- 相关分类卡片 ---------- */
.related-grid{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:24px;
}
.card{
  display:flex;
  flex-direction:column;
  background:var(--paper-0);
  border:1px solid var(--line-200);
  border-radius:var(--radius-card);
  overflow:hidden;
  transition:box-shadow .22s var(--ease),transform .22s var(--ease);
}
.card:hover{box-shadow:var(--shadow-hover);transform:translateY(-2px);}
.card-media{
  position:relative;
  aspect-ratio:16/10;
  background:var(--paper-100);
  overflow:hidden;
}
.card-media img{
  width:100%;height:100%;
  object-fit:cover;
  transition:transform .35s var(--ease);
}
.card:hover .card-media img{transform:scale(1.03);}
.card-body{padding:22px 22px 24px;display:flex;flex-direction:column;gap:10px;flex:1;}
.card-body h3{
  font-size:clamp(18px,1.6vw,21px);
  font-weight:600;
  line-height:1.4;
}
.card-body p{font-size:14.5px;color:var(--text-600);}
.card-foot{
  margin-top:auto;
  padding-top:14px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  font-size:13px;
  color:var(--text-400);
  border-top:1px solid var(--line-200);
}
.card-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  color:var(--ink-700);
  font-weight:600;
  transition:color .2s var(--ease),gap .2s var(--ease);
}
.card-link:hover{color:var(--ink-500);gap:10px;}

/* ---------- 状态样式 ---------- */
.empty-state{
  padding:48px 24px;
  text-align:center;
  background:var(--paper-0);
  border:1px dashed var(--line-200);
  border-radius:var(--radius-card);
}
.empty-state b{display:block;color:var(--ink-700);font-size:16px;margin-bottom:8px;}
.empty-state span{font-size:14px;color:var(--text-400);}
.skeleton{
  background:linear-gradient(90deg,var(--paper-100) 25%,#e6e2d8 37%,var(--paper-100) 63%);
  background-size:400% 100%;
  animation:sk 1.4s ease infinite;
  border-radius:var(--radius-card);
  height:14px;
}
@keyframes sk{0%{background-position:100% 50%;}100%{background-position:0 50%;}}
.alert-bar{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:10px 18px;
  font-size:13.5px;
  background:rgba(217,107,69,.12);
  color:#8f3f22;
  border-bottom:1px solid rgba(217,107,69,.3);
}
.alert-bar button{
  background:none;border:none;font-size:16px;line-height:1;color:inherit;
}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--ink-900);
  color:var(--paper-50);
  padding:clamp(48px,6vw,72px) 0 28px;
  margin-top:0;
}
.footer-top{
  display:flex;
  flex-wrap:wrap;
  align-items:flex-start;
  justify-content:space-between;
  gap:24px;
  padding-bottom:36px;
  border-bottom:1px solid rgba(255,255,255,.12);
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:12px;}
.footer-brand .brand-text{color:var(--paper-50);}
.footer-slogan{
  font-size:14px;
  color:rgba(247,245,240,.72);
  letter-spacing:.02em;
}
.to-top{
  background:transparent;
  border:1px solid rgba(247,245,240,.4);
  border-radius:var(--radius-btn);
  color:var(--paper-50);
  font-size:13.5px;
  padding:10px 18px;
  min-height:44px;
  transition:background .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease);
}
.to-top:hover{background:var(--sprout-400);border-color:var(--sprout-400);color:var(--ink-900);}
.footer-cols{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:32px;
  padding:40px 0;
  border-bottom:1px solid rgba(255,255,255,.12);
}
.footer-col h4{
  color:var(--paper-50);
  font-size:14px;
  font-weight:700;
  margin-bottom:14px;
  letter-spacing:.02em;
}
.footer-col a,
.footer-col p{
  display:block;
  font-size:14px;
  line-height:2.2;
  color:rgba(247,245,240,.7);
  transition:color .2s var(--ease);
}
.footer-col a:hover{color:var(--sprout-400);}
.footer-qr{
  width:104px;height:104px;
  border:1px dashed rgba(247,245,240,.35);
  border-radius:var(--radius-card);
  display:flex;
  align-items:center;
  justify-content:center;
  text-align:center;
  font-size:12.5px;
  line-height:1.7;
  color:rgba(247,245,240,.6);
}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding-top:24px;
  font-size:13px;
  color:rgba(247,245,240,.55);
  letter-spacing:.02em;
}

/* ---------- 响应式 ---------- */
@media (max-width:1200px){
  .nav-link{padding:0 10px;font-size:14.5px;}
  .flow-item{grid-template-columns:0.8fr 6fr 4fr;}
}
@media (max-width:1024px){
  .nav-links{display:none;}
  .nav-toggle{display:inline-flex;}
  .concept{grid-template-columns:1fr;}
  .concept .concept-aside{border-left:none;border-top:1px solid var(--line-200);padding-left:0;padding-top:16px;}
  .concept-points{grid-template-columns:1fr;}
  .data-grid{grid-template-columns:repeat(2,1fr);}
  .flow-item{grid-template-columns:1fr;gap:14px;padding:24px 8px;}
  .flow-item .side{border-left:none;border-top:1px solid var(--line-200);padding-left:0;padding-top:12px;}
  .cta-banner{grid-template-columns:1fr;}
  .cta-banner .cta-actions{justify-content:flex-start;}
  .detail-notes{grid-template-columns:1fr;}
  .related-grid{grid-template-columns:1fr;}
  .footer-cols{grid-template-columns:repeat(2,1fr);}
}
@media (max-width:768px){
  body{line-height:1.8;}
  .info-bar{display:none;}
  .nav-inner{min-height:64px;}
  .page-hero{padding-top:28px;}
  .data-grid{grid-template-columns:1fr;}
  .data-grid li{padding:20px 16px;}
  .hero-figure img{height:200px;}
  .section-head h2{padding-left:12px;}
  .btn{width:100%;}
  .cta-actions .btn{width:100%;}
  .footer-top{gap:18px;}
}
@media (max-width:520px){
  .brand-text{font-size:17px;}
  .page-hero h1{font-size:28px;}
  .page-hero .lead{font-size:15.5px;}
  .footer-cols{grid-template-columns:1fr;gap:20px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .faq-answer-inner{padding-left:34px;}
}

/* ---------- 移动抽屉 ---------- */
.nav-toggle{
  display:none;
  width:44px;height:44px;
  align-items:center;
  justify-content:center;
  background:transparent;
  border:1px solid var(--line-200);
  border-radius:var(--radius-btn);
}
.nav-toggle span{
  position:relative;
  width:18px;height:2px;
  background:var(--ink-700);
  display:block;
}
.nav-toggle span::before,
.nav-toggle span::after{
  content:"";
  position:absolute;
  left:0;
  width:18px;height:2px;
  background:var(--ink-700);
}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}
.drawer{
  position:fixed;
  inset:0;
  z-index:80;
  background:rgba(12,38,32,.45);
  opacity:0;
  pointer-events:none;
  transition:opacity .25s var(--ease);
}
.drawer.is-open{opacity:1;pointer-events:auto;}
.drawer-panel{
  position:absolute;
  top:0;right:0;
  width:min(320px,86vw);
  height:100%;
  background:var(--paper-50);
  transform:translateX(100%);
  transition:transform .28s var(--ease);
  display:flex;
  flex-direction:column;
  padding:20px 22px 28px;
}
.drawer.is-open .drawer-panel{transform:none;}
.drawer-close{
  align-self:flex-end;
  width:44px;height:44px;
  border:1px solid var(--line-200);
  border-radius:var(--radius-btn);
  background:transparent;
  font-size:18px;
  color:var(--ink-700);
}
.drawer-nav{margin-top:18px;flex:1;}
.drawer-nav a{
  display:flex;
  align-items:center;
  min-height:56px;
  font-size:18px;
  color:var(--text-900);
  border-bottom:1px solid var(--line-200);
}
.drawer-nav a.is-active{color:var(--ink-700);font-weight:700;}
.drawer .btn{margin-top:18px;}

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