/* roulang page: index */
:root{
  --brand-900:#08251C;
  --brand-700:#0E3C2F;
  --brand-500:#1B6B52;
  --accent-500:#FF5A1F;
  --accent-400:#FF7A45;
  --ink-900:#14181B;
  --ink-600:#4A5459;
  --ink-300:#98A2A8;
  --line:#E4E7E5;
  --canvas:#F6F7F5;
  --surface:#FFFFFF;
  --tint:#EAF2EF;
  --success:#1F9D55;
  --warning:#C7860A;
  --danger:#D64545;
  --radius-card:14px;
  --radius-img:10px;
  --radius-input:10px;
  --shadow-1:0 1px 2px rgba(16,24,20,.04), 0 8px 24px -12px rgba(16,24,20,.12);
  --shadow-2:0 2px 4px rgba(16,24,20,.06), 0 18px 40px -18px rgba(16,24,20,.22);
  --ease:cubic-bezier(0.22,1,0.36,1);
  --container:1200px;
  --font:-apple-system,BlinkMacSystemFont,"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  color:var(--ink-900);
  background:var(--canvas);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none}
a{color:var(--brand-700);text-decoration:none;transition:color .22s var(--ease)}
a:hover{color:var(--accent-500)}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
button,input,textarea,select{font:inherit;color:inherit}
button{cursor:pointer;border:0;background:none}
:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px;border-radius:4px}
.num{font-variant-numeric:tabular-nums}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 clamp(20px,4vw,40px)}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:var(--surface);
  border-bottom:1px solid var(--line);
  transition:box-shadow .28s var(--ease);
}
.site-header.is-scrolled{box-shadow:var(--shadow-1)}
.topbar{display:flex;align-items:center;gap:20px;min-height:72px;padding:10px 0}
.brand{display:flex;align-items:center;gap:12px;flex:0 0 auto;color:var(--ink-900)}
.brand:hover{color:var(--ink-900)}
.brand-mark{
  width:42px;height:42px;border-radius:12px;flex:0 0 auto;
  background:linear-gradient(140deg,var(--brand-700),var(--brand-500));
  display:grid;place-items:center;color:#fff;
  box-shadow:0 6px 16px -8px rgba(8,37,28,.6);
}
.brand-mark svg{width:22px;height:22px}
.brand-text{display:flex;flex-direction:column;line-height:1.25}
.brand-text b{font-size:15.5px;font-weight:800;letter-spacing:.01em}
.brand-text span{font-size:12.5px;color:var(--ink-600);letter-spacing:.02em}
.search-pill{
  flex:1 1 auto;max-width:420px;display:flex;align-items:center;gap:8px;
  height:44px;padding:0 16px;margin-left:auto;
  background:var(--canvas);border:1px solid var(--line);border-radius:999px;
  transition:border-color .22s var(--ease),box-shadow .22s var(--ease),background .22s var(--ease);
}
.search-pill:focus-within{border-color:var(--brand-500);background:var(--surface);box-shadow:0 0 0 4px rgba(27,107,82,.08)}
.search-pill svg{width:18px;height:18px;color:var(--ink-300);flex:0 0 auto}
.search-pill input{flex:1;border:0;background:transparent;outline:none;font-size:14.5px}
.search-pill input::placeholder{color:var(--ink-300)}
.topbar-actions{display:flex;align-items:center;gap:16px;flex:0 0 auto}
.link-quiet{font-size:14px;color:var(--ink-600);position:relative}
.link-quiet::after{
  content:"";position:absolute;left:0;bottom:-3px;height:2px;width:0;
  background:var(--accent-500);transition:width .26s var(--ease);
}
.link-quiet:hover::after{width:100%}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:999px;
  font-size:15px;font-weight:600;letter-spacing:.01em;
  transition:background .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease),transform .18s var(--ease),box-shadow .22s var(--ease);
  white-space:nowrap;
}
.btn svg{width:17px;height:17px;transition:transform .22s var(--ease)}
.btn:hover svg{transform:translateX(2px)}
.btn-primary{background:var(--accent-500);color:#fff;box-shadow:0 10px 22px -12px rgba(255,90,31,.9)}
.btn-primary:hover{background:var(--accent-400);color:#fff}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{background:var(--surface);color:var(--ink-900);border:1px solid var(--line)}
.btn-ghost:hover{border-color:var(--brand-500);color:var(--brand-700)}
.btn-light{background:#fff;color:var(--brand-900)}
.btn-light:hover{background:var(--tint);color:var(--brand-900)}
.btn-sm{height:44px;padding:0 20px;font-size:14.5px}
.btn-block{width:100%}
.btn[disabled]{opacity:.4;cursor:not-allowed}

.channels{
  border-top:1px solid var(--line);
  overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;
}
.channels::-webkit-scrollbar{display:none}
.channels-inner{display:flex;align-items:center;gap:10px;padding:10px 0;min-width:max-content}
.channel{
  display:inline-flex;align-items:center;height:38px;padding:0 18px;border-radius:999px;
  font-size:14.5px;font-weight:500;color:var(--ink-600);
  border:1px solid var(--line);background:var(--surface);
  transition:background .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease);
}
.channel:hover{background:var(--tint);color:var(--brand-700);border-color:transparent}
.channel.is-active{background:var(--brand-700);border-color:var(--brand-700);color:#fff}
.channel.is-active:hover{background:var(--brand-900);color:#fff}

.menu-toggle{display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);align-items:center;justify-content:center;color:var(--ink-900)}
.menu-toggle svg{width:20px;height:20px}
.mobile-panel{display:none}

/* ---------- Hero ---------- */
.hero{position:relative;padding:clamp(48px,6vw,84px) 0 clamp(56px,7vw,96px);overflow:hidden}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(8,37,28,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(8,37,28,.06) 1px,transparent 1px);
  background-size:56px 56px;
  mask-image:radial-gradient(70% 60% at 30% 20%,#000 0%,transparent 78%);
  -webkit-mask-image:radial-gradient(70% 60% at 30% 20%,#000 0%,transparent 78%);
}
.hero-grid{position:relative;display:grid;grid-template-columns:1fr 1fr;gap:clamp(32px,4vw,64px);align-items:center}
.badges{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:20px}
.pill{
  display:inline-flex;align-items:center;height:28px;padding:0 13px;border-radius:999px;
  background:var(--tint);color:var(--brand-700);font-size:13px;font-weight:600;letter-spacing:.02em;
}
.pill-outline{background:transparent;border:1px solid var(--line);color:var(--ink-600)}
.hero h1{
  font-size:clamp(32px,5.2vw,60px);font-weight:800;line-height:1.08;letter-spacing:-.02em;
  margin-bottom:20px;color:var(--brand-900);
}
.hero h1 em{font-style:normal;color:var(--accent-500)}
.hero-lead{font-size:17px;line-height:1.85;color:var(--ink-600);max-width:56ch;margin-bottom:28px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px}
.trust-row{display:flex;flex-wrap:wrap;gap:12px 28px;padding-top:24px;border-top:1px solid var(--line)}
.trust-item{display:flex;align-items:center;gap:9px;font-size:14px;color:var(--ink-600)}
.trust-item svg{width:18px;height:18px;color:var(--brand-500);flex:0 0 auto}
.hero-media{position:relative}
.hero-media img{width:100%;height:clamp(280px,38vw,440px);object-fit:cover;border-radius:16px;box-shadow:var(--shadow-2)}
.hero-media::after{
  content:"";position:absolute;inset:0;border-radius:16px;
  background:linear-gradient(180deg,rgba(8,37,28,0) 45%,rgba(8,37,28,.35) 100%);
}
.float-card{
  position:absolute;left:-18px;bottom:-22px;z-index:2;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:16px 20px;box-shadow:var(--shadow-2);min-width:190px;
}
.float-card .fc-label{font-size:12.5px;color:var(--ink-300);letter-spacing:.06em;margin-bottom:4px}
.float-card .fc-value{font-size:26px;font-weight:800;color:var(--brand-700);line-height:1.2}
.float-card .fc-sub{font-size:13px;color:var(--ink-600);margin-top:4px}

/* ---------- 通用板块 ---------- */
.section{padding:clamp(64px,8vw,120px) 0}
.section-tint{background:var(--tint)}
.section-dark{background:var(--brand-900);color:#fff}
.section-head{margin-bottom:clamp(32px,4vw,52px);max-width:760px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;letter-spacing:.14em;color:var(--brand-500);
  text-transform:uppercase;margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--accent-500);border-radius:2px}
h2{font-size:clamp(24px,3vw,38px);font-weight:700;line-height:1.2;letter-spacing:-.01em;color:var(--brand-900)}
.section-dark h2{color:#fff}
.section-sub{margin-top:14px;font-size:16px;line-height:1.85;color:var(--ink-600)}
.section-dark .section-sub{color:rgba(255,255,255,.72)}

/* ---------- 入口列表 ---------- */
.entry-layout{display:grid;grid-template-columns:5fr 7fr;gap:clamp(28px,4vw,64px);align-items:start}
.entry-intro p{font-size:15.5px;line-height:1.9;color:var(--ink-600);margin-bottom:16px}
.entry-note{
  margin-top:24px;padding:18px 20px;border-radius:var(--radius-card);
  background:var(--surface);border:1px solid var(--line);border-left:3px solid var(--accent-500);
  font-size:14.5px;color:var(--ink-600);line-height:1.8;
}
.rows{border-top:1px solid var(--line)}
.row-item{
  display:grid;grid-template-columns:64px 1fr auto;gap:18px;align-items:center;
  padding:22px 16px;border-bottom:1px solid var(--line);
  background:transparent;transition:background .22s var(--ease);
}
.row-item:hover{background:var(--tint)}
.row-num{font-size:15px;font-weight:800;color:var(--ink-300);letter-spacing:.06em;transition:color .22s var(--ease)}
.row-item:hover .row-num{color:var(--accent-500)}
.row-title{font-size:17px;font-weight:600;color:var(--brand-900);margin-bottom:4px}
.row-desc{font-size:14px;color:var(--ink-600);line-height:1.7}
.row-item svg{width:18px;height:18px;color:var(--ink-300);transition:transform .22s var(--ease),color .22s var(--ease)}
.row-item:hover svg{color:var(--accent-500);transform:translateX(2px)}

/* ---------- 数据 ---------- */
.stats{display:grid;grid-template-columns:repeat(4,1fr)}
.stat{padding:0 clamp(16px,2.4vw,32px);border-left:1px solid var(--line)}
.stat:first-child{border-left:0;padding-left:0}
.stat-value{display:flex;align-items:baseline;gap:4px;font-size:clamp(28px,4vw,44px);font-weight:800;color:var(--brand-700);line-height:1.1;letter-spacing:-.02em}
.stat-value span{font-size:16px;font-weight:700;color:var(--ink-600)}
.stat-label{margin-top:10px;font-size:14px;color:var(--ink-600);line-height:1.7}

/* ---------- 场景 ---------- */
.scene-grid{display:grid;grid-template-columns:1.25fr 1fr;grid-template-rows:repeat(2,1fr);gap:24px}
.scene-card{
  position:relative;display:flex;flex-direction:column;justify-content:flex-end;
  border-radius:var(--radius-card);overflow:hidden;background:var(--surface);
  border:1px solid var(--line);box-shadow:var(--shadow-1);
  transition:transform .26s var(--ease),box-shadow .26s var(--ease),border-color .26s var(--ease);
}
.scene-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:rgba(27,107,82,.3)}
.scene-card.big{grid-row:span 2;min-height:420px}
.scene-card.small{min-height:200px}
.scene-card img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease)}
.scene-card:hover img{transform:scale(1.03)}
.scene-body{
  position:relative;z-index:2;padding:clamp(20px,3vw,30px);
  background:linear-gradient(180deg,rgba(8,37,28,0) 0%,rgba(8,37,28,.82) 62%,rgba(8,37,28,.94) 100%);
  color:#fff;
}
.scene-card.big .scene-body{padding-bottom:34px}
.scene-body h3{font-size:19px;font-weight:700;line-height:1.35;margin-bottom:8px;color:#fff}
.scene-card.big .scene-body h3{font-size:clamp(21px,2.4vw,27px)}
.scene-body p{font-size:14.5px;line-height:1.7;color:rgba(255,255,255,.78)}
.scene-link{display:inline-flex;align-items:center;gap:6px;margin-top:14px;font-size:14px;font-weight:600;color:var(--accent-400)}
.scene-link svg{width:16px;height:16px;transition:transform .22s var(--ease)}
.scene-card:hover .scene-link svg{transform:translateX(3px)}

/* ---------- 步骤 ---------- */
.steps-layout{display:grid;grid-template-columns:6fr 6fr;gap:clamp(28px,4vw,64px);align-items:start}
.steps{position:relative}
.step{position:relative;display:flex;gap:20px;padding-bottom:36px}
.step:last-child{padding-bottom:0}
.step::before{
  content:"";position:absolute;left:19px;top:44px;bottom:0;width:2px;background:var(--line);
}
.step:last-child::before{display:none}
.step-dot{
  flex:0 0 auto;width:40px;height:40px;border-radius:999px;
  background:var(--surface);border:2px solid var(--brand-500);color:var(--brand-700);
  display:grid;place-items:center;font-size:14px;font-weight:800;
  transition:background .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease);
}
.step:hover .step-dot{background:var(--accent-500);border-color:var(--accent-500);color:#fff}
.step-body{padding-top:4px}
.step-body h3{font-size:17.5px;font-weight:700;color:var(--brand-900);margin-bottom:8px}
.step-body p{font-size:14.5px;line-height:1.8;color:var(--ink-600)}
.steps-media img{width:100%;height:100%;max-height:480px;object-fit:cover;border-radius:var(--radius-card);box-shadow:var(--shadow-1)}
.steps-media figcaption{margin-top:12px;font-size:13px;color:var(--ink-300)}

/* ---------- 最新信息 ---------- */
.news-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;flex-wrap:wrap}
.news-head .section-head{margin-bottom:0}
.news-grid{display:grid;grid-template-columns:1.15fr 1fr;gap:clamp(24px,3vw,40px);margin-top:clamp(28px,4vw,48px)}
.news-main{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;box-shadow:var(--shadow-1);display:flex;flex-direction:column;
  transition:transform .26s var(--ease),box-shadow .26s var(--ease),border-color .26s var(--ease);
}
.news-main:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:rgba(27,107,82,.3)}
.news-main-media{display:block;overflow:hidden;aspect-ratio:16/9;background:linear-gradient(135deg,var(--tint),rgba(27,107,82,.12))}
.news-main-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease)}
.news-main:hover .news-main-media img{transform:scale(1.03)}
.news-main-body{padding:26px clamp(20px,2.4vw,30px) 30px}
.news-main-body h3{font-size:clamp(19px,2.1vw,23px);font-weight:700;line-height:1.4;margin:14px 0 10px;color:var(--brand-900)}
.news-main-body h3 a{color:inherit}
.news-main-body h3 a:hover{color:var(--accent-500)}
.news-main-body p{font-size:14.5px;line-height:1.8;color:var(--ink-600);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.meta{display:flex;align-items:center;gap:12px;margin-top:16px;font-size:13px;color:var(--ink-300);letter-spacing:.02em}
.news-side{display:flex;flex-direction:column;border-top:1px solid var(--line)}
.news-item{
  display:block;padding:18px 4px;border-bottom:1px solid var(--line);
  transition:background .22s var(--ease),padding-left .22s var(--ease);
}
.news-item:hover{background:var(--tint);padding-left:12px}
.news-item h3{font-size:16px;font-weight:600;line-height:1.45;color:var(--brand-900);margin:8px 0 6px;
  display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden}
.news-item p{font-size:14px;color:var(--ink-600);line-height:1.7;
  display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden}
.news-item .meta{margin-top:8px}
.empty-state{
  margin-top:clamp(28px,4vw,48px);
  display:flex;align-items:center;gap:16px;
  padding:28px clamp(20px,3vw,32px);
  background:var(--surface);border:1px dashed var(--line);border-radius:var(--radius-card);
  color:var(--ink-600);font-size:15px;
}
.empty-state svg{width:24px;height:24px;color:var(--ink-300);flex:0 0 auto}

/* ---------- FAQ ---------- */
.faq-layout{display:grid;grid-template-columns:4fr 8fr;gap:clamp(28px,4vw,64px);align-items:start}
.faq{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 4px;text-align:left;font-size:16.5px;font-weight:600;color:var(--brand-900);
  transition:color .22s var(--ease);
}
.faq-q:hover{color:var(--brand-500)}
.faq-q svg{width:20px;height:20px;flex:0 0 auto;color:var(--ink-300);transition:transform .24s var(--ease),color .24s var(--ease)}
.faq-item.is-open .faq-q svg{transform:rotate(180deg);color:var(--accent-500)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s var(--ease)}
.faq-a p{padding:0 4px 22px;font-size:15px;line-height:1.85;color:var(--ink-600);max-width:70ch}

/* ---------- 联系 / 表单 ---------- */
.contact-grid{display:grid;grid-template-columns:5fr 7fr;gap:clamp(28px,4vw,64px);align-items:start}
.contact-points{display:flex;flex-direction:column;gap:18px;margin-top:26px}
.contact-point{display:flex;gap:14px;align-items:flex-start;font-size:15px;color:var(--ink-600);line-height:1.75}
.contact-point svg{width:20px;height:20px;color:var(--brand-500);flex:0 0 auto;margin-top:3px}
.form-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:clamp(22px,3vw,34px);box-shadow:var(--shadow-1);
}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.field{display:flex;flex-direction:column;gap:8px;margin-bottom:16px}
.field label{font-size:14px;font-weight:600;color:var(--ink-900)}
.field input,.field textarea{
  height:46px;padding:0 14px;border:1px solid var(--line);border-radius:var(--radius-input);
  background:var(--canvas);outline:none;font-size:15px;
  transition:border-color .22s var(--ease),box-shadow .22s var(--ease),background .22s var(--ease);
}
.field textarea{height:110px;padding:12px 14px;resize:vertical;line-height:1.7}
.field input:focus,.field textarea:focus{border-color:var(--brand-500);background:var(--surface);box-shadow:0 0 0 4px rgba(27,107,82,.08)}
.field input::placeholder,.field textarea::placeholder{color:var(--ink-300)}
.form-hint{font-size:13px;color:var(--ink-300);margin-top:14px;line-height:1.7}
.form-msg{
  display:none;margin-bottom:16px;padding:12px 16px;border-radius:var(--radius-input);
  background:rgba(31,157,85,.08);border-left:3px solid var(--success);
  font-size:14px;color:var(--brand-900);
}
.form-msg.is-visible{display:block}

/* ---------- 页脚前 CTA ---------- */
.prefooter{
  background:var(--brand-900);position:relative;overflow:hidden;
  padding:clamp(36px,5vw,56px) 0;
}
.prefooter::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:48px 48px;
}
.prefooter-inner{position:relative;display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap}
.prefooter h2{color:#fff;font-size:clamp(20px,2.4vw,28px)}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--brand-900);color:rgba(255,255,255,.72);padding:clamp(48px,6vw,72px) 0 0;position:relative;overflow:hidden}
.site-footer::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);
  background-size:48px 48px;
}
.footer-grid{position:relative;display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:clamp(24px,3vw,48px)}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:18px;color:#fff}
.footer-brand .brand-text b{color:#fff}
.footer-brand .brand-text span{color:rgba(255,255,255,.6)}
.footer-about{font-size:14px;line-height:1.85;color:rgba(255,255,255,.66);max-width:34ch}
.footer-col h3{font-size:14px;font-weight:700;color:#fff;margin-bottom:16px;letter-spacing:.04em}
.footer-col ul{display:flex;flex-direction:column;gap:11px}
.footer-col a{font-size:14px;color:rgba(255,255,255,.66)}
.footer-col a:hover{color:#fff;text-decoration:underline;text-underline-offset:4px}
.footer-bottom{
  position:relative;margin-top:clamp(36px,5vw,56px);padding:22px 0 26px;
  border-top:1px solid rgba(255,255,255,.12);
  display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap;
  font-size:13.5px;color:rgba(255,255,255,.55);
}
.footer-bottom-links{display:flex;gap:20px;flex-wrap:wrap}
.footer-bottom a{color:rgba(255,255,255,.6)}
.footer-bottom a:hover{color:#fff}
.to-top{
  position:relative;width:44px;height:44px;border-radius:999px;flex:0 0 auto;
  border:1px solid rgba(255,255,255,.2);display:grid;place-items:center;color:#fff;
  transition:background .22s var(--ease),border-color .22s var(--ease),transform .22s var(--ease);
}
.to-top:hover{background:var(--brand-500);border-color:var(--brand-500);color:#fff;transform:translateY(-2px)}
.to-top svg{width:18px;height:18px}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(12px)}
.reveal.is-in{opacity:1;transform:none;transition:opacity .5s var(--ease),transform .5s var(--ease)}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .hero-grid{grid-template-columns:1fr 1fr;gap:36px}
  .stats{grid-template-columns:repeat(2,1fr);row-gap:32px}
  .stat:nth-child(3){border-left:0;padding-left:0}
}
@media (max-width:1023px){
  .search-pill{display:none}
  .topbar-actions .link-quiet{display:none}
  .menu-toggle{display:inline-flex}
  .hero-grid{grid-template-columns:1fr}
  .hero-media img{height:300px}
  .float-card{left:16px;bottom:-18px}
  .entry-layout,.steps-layout,.faq-layout,.contact-grid{grid-template-columns:1fr}
  .news-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
  .mobile-panel{
    display:block;position:fixed;inset:0;z-index:80;background:var(--surface);
    transform:translateY(-100%);transition:transform .32s var(--ease);
    padding:20px clamp(20px,5vw,32px) 32px;overflow-y:auto;
  }
  .mobile-panel.is-open{transform:translateY(0)}
  .mobile-panel-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:24px}
  .mobile-panel nav{display:flex;flex-direction:column;border-top:1px solid var(--line)}
  .mobile-panel nav a{padding:18px 4px;border-bottom:1px solid var(--line);font-size:16.5px;font-weight:600;color:var(--brand-900)}
  .mobile-panel nav a.is-active{color:var(--accent-500)}
  .mobile-panel .btn{margin-top:28px}
}
@media (max-width:767px){
  body{font-size:15.5px;line-height:1.75}
  .hero h1{font-size:clamp(28px,8vw,38px)}
  .hero-lead{font-size:15.5px}
  .scene-grid{grid-template-columns:1fr;grid-template-rows:none}
  .scene-card.big{grid-row:auto;min-height:300px}
  .scene-card.small{min-height:220px}
  .form-row{grid-template-columns:1fr}
  .btn{height:44px;padding:0 20px}
  .btn-block-mobile{width:100%}
  .footer-grid{grid-template-columns:1fr}
  .row-item{grid-template-columns:48px 1fr;gap:12px;padding:18px 10px}
  .row-item svg{display:none}
}
@media (max-width:479px){
  .badges{gap:8px}
  .hero-actions{flex-direction:column;align-items:stretch}
  .hero-actions .btn{width:100%}
  .channels-inner{gap:8px}
  .channel{padding:0 14px;font-size:13.5px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition-duration:.01ms!important}
  .reveal{opacity:1;transform:none}
  .scene-card:hover img,.news-main:hover .news-main-media img{transform:none}
}

/* roulang page: article */
:root{
  --brand-900:#08251C;
  --brand-700:#0E3C2F;
  --brand-500:#1B6B52;
  --accent-500:#FF5A1F;
  --accent-400:#FF7A45;
  --ink-900:#14181B;
  --ink-600:#4A5459;
  --ink-300:#98A2A8;
  --line:#E4E7E5;
  --canvas:#F6F7F5;
  --surface:#FFFFFF;
  --tint:#EAF2EF;
  --success:#1F9D55;
  --warning:#C7860A;
  --danger:#D64545;
  --radius-card:14px;
  --radius-img:10px;
  --radius-input:10px;
  --radius-pill:999px;
  --shadow-1:0 1px 2px rgba(16,24,20,.04), 0 8px 24px -12px rgba(16,24,20,.12);
  --shadow-2:0 2px 4px rgba(16,24,20,.06), 0 18px 40px -18px rgba(16,24,20,.2);
  --ease:cubic-bezier(.22,1,.36,1);
  --gap:24px;
  --section:clamp(56px,7vw,104px);
  --pad:clamp(20px,4vw,40px);
  --font:-apple-system,BlinkMacSystemFont,"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  color:var(--ink-900);
  background:var(--canvas);
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;}
a{color:var(--brand-700);text-decoration:none;transition:color .22s var(--ease);}
a:hover{color:var(--accent-500);}
button{font-family:inherit;font-size:inherit;cursor:pointer;border:0;background:none;color:inherit;}
input{font-family:inherit;font-size:inherit;}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0;}
ul,ol{padding:0;list-style:none;}
svg{width:1em;height:1em;}
:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px;border-radius:6px;}
.container{max-width:1200px;margin:0 auto;padding:0 var(--pad);width:100%;}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0;}

/* ---------- header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:rgba(255,255,255,.96);
  backdrop-filter:saturate(180%) blur(8px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .26s var(--ease);
}
.site-header.is-scrolled{box-shadow:var(--shadow-1);}
.topbar{
  display:flex;
  align-items:center;
  gap:20px;
  min-height:66px;
  padding:10px 0;
}
.brand{display:flex;align-items:center;gap:10px;color:var(--ink-900);flex:0 0 auto;}
.brand:hover{color:var(--ink-900);}
.brand-mark{
  width:38px;height:38px;flex:0 0 38px;
  display:grid;place-items:center;
  border-radius:11px;
  background:linear-gradient(140deg,var(--brand-700),var(--brand-500));
  color:#fff;
}
.brand-mark svg{width:21px;height:21px;}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-text b{font-size:16px;font-weight:800;letter-spacing:-.01em;}
.brand-text span{font-size:12px;color:var(--ink-600);letter-spacing:.06em;}
.search-pill{
  flex:1 1 auto;
  max-width:420px;
  display:flex;
  align-items:center;
  gap:8px;
  height:42px;
  padding:0 16px;
  border:1px solid var(--line);
  border-radius:var(--radius-pill);
  background:var(--canvas);
  color:var(--ink-300);
  transition:border-color .22s var(--ease),box-shadow .22s var(--ease),background .22s var(--ease);
}
.search-pill svg{width:17px;height:17px;flex:0 0 17px;color:var(--ink-300);}
.search-pill input{
  border:0;background:transparent;outline:none;width:100%;
  color:var(--ink-900);font-size:14.5px;
}
.search-pill input::placeholder{color:var(--ink-300);}
.search-pill:focus-within{
  background:#fff;
  border-color:var(--brand-500);
  box-shadow:0 0 0 4px rgba(27,107,82,.08);
}
.topbar-actions{display:flex;align-items:center;gap:14px;margin-left:auto;flex:0 0 auto;}
.link-quiet{font-size:14.5px;color:var(--ink-600);}
.link-quiet:hover{color:var(--brand-700);}
.menu-toggle{
  display:none;
  width:44px;height:44px;
  align-items:center;justify-content:center;
  border:1px solid var(--line);
  border-radius:12px;
  background:#fff;
  color:var(--ink-900);
}
.menu-toggle svg{width:20px;height:20px;}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;
  border-radius:var(--radius-pill);
  font-size:15px;font-weight:600;
  border:1px solid transparent;
  transition:background .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease),transform .18s var(--ease),box-shadow .22s var(--ease);
  white-space:nowrap;
}
.btn svg{width:17px;height:17px;transition:transform .22s var(--ease);}
.btn:hover svg{transform:translateX(2px);}
.btn:active{transform:translateY(1px);}
.btn-primary{background:var(--accent-500);color:#fff;box-shadow:0 10px 22px -14px rgba(255,90,31,.9);}
.btn-primary:hover{background:var(--accent-400);color:#fff;}
.btn-ghost{background:#fff;color:var(--ink-900);border-color:var(--line);}
.btn-ghost:hover{border-color:var(--brand-500);color:var(--brand-700);}
.btn-sm{height:42px;padding:0 18px;font-size:14px;}
.btn-block{width:100%;}

.channels{border-top:1px solid var(--line);background:#fff;}
.channels-inner{
  display:flex;gap:10px;align-items:center;
  padding:10px 0 12px;
  overflow-x:auto;
  scrollbar-width:none;
  -ms-overflow-style:none;
}
.channels-inner::-webkit-scrollbar{display:none;}
.channel{
  flex:0 0 auto;
  padding:8px 16px;
  font-size:14.5px;
  border-radius:var(--radius-pill);
  border:1px solid var(--line);
  background:var(--canvas);
  color:var(--ink-600);
  transition:background .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease);
}
.channel:hover{background:var(--tint);color:var(--brand-700);border-color:transparent;}
.channel.is-active{background:var(--brand-700);border-color:var(--brand-700);color:#fff;}
.channel.is-active:hover{background:var(--brand-700);color:#fff;}

/* drawer */
.drawer{
  position:fixed;inset:0;
  z-index:100;
  background:#fff;
  padding:20px var(--pad) 28px;
  display:flex;flex-direction:column;
  transform:translateY(-102%);
  transition:transform .32s var(--ease);
  overflow-y:auto;
}
.drawer.is-open{transform:translateY(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px;}
.drawer-close{width:44px;height:44px;display:grid;place-items:center;border:1px solid var(--line);border-radius:12px;}
.drawer-close svg{width:20px;height:20px;}
.drawer-nav{display:flex;flex-direction:column;gap:4px;}
.drawer-nav a{
  padding:14px 4px;font-size:17px;font-weight:600;color:var(--ink-900);
  border-bottom:1px solid var(--line);
}
.drawer-nav a.is-active{color:var(--brand-700);}
.drawer-cta{margin-top:auto;padding-top:26px;display:grid;gap:12px;}
.drawer-note{font-size:13px;color:var(--ink-300);text-align:center;}

/* ---------- shared bits ---------- */
.pill{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;
  font-size:13px;letter-spacing:.02em;
  border-radius:var(--radius-pill);
  background:var(--tint);
  color:var(--brand-700);
}
.section{padding:var(--section) 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:32px;}
.section-title{
  font-size:clamp(24px,3vw,38px);
  font-weight:700;line-height:1.2;letter-spacing:-.01em;
  padding-left:16px;position:relative;
}
.section-title::before{
  content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:3px;
  border-radius:3px;background:var(--brand-700);
}
.section-sub{font-size:15px;color:var(--ink-600);max-width:620px;margin-top:8px;}

/* ---------- breadcrumb ---------- */
.crumb-bar{background:var(--surface);border-bottom:1px solid var(--line);}
.crumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--ink-300);
  padding:14px 0;
}
.crumb a{color:var(--ink-600);}
.crumb a:hover{color:var(--brand-700);}
.crumb .sep{color:var(--ink-300);}
.crumb .current{color:var(--ink-900);max-width:min(560px,60vw);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

/* ---------- article layout ---------- */
.article-wrap{padding:clamp(32px,4vw,56px) 0 var(--section);}
.article-grid{
  display:grid;
  grid-template-columns:minmax(0,1fr) 300px;
  gap:48px;
  align-items:start;
}
.article-main{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);
  padding:clamp(22px,3.4vw,48px);
}
.kicker{font-size:13px;letter-spacing:.12em;color:var(--brand-500);text-transform:none;margin-bottom:12px;}
.article-title{
  font-size:clamp(26px,3.6vw,40px);
  font-weight:800;
  line-height:1.2;
  letter-spacing:-.02em;
  margin-bottom:18px;
}
.meta-row{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 16px;
  padding-bottom:22px;
  border-bottom:1px solid var(--line);
  font-size:13.5px;color:var(--ink-300);letter-spacing:.02em;
}
.meta-row .dot{width:4px;height:4px;border-radius:50%;background:var(--line);}
.hero-figure{margin:26px 0 8px;}
.hero-figure img{
  width:100%;
  border-radius:var(--radius-img);
  border:1px solid var(--line);
  background:var(--tint);
}
.hero-figure figcaption{font-size:13px;color:var(--ink-300);margin-top:10px;text-align:center;}

.article-body{max-width:760px;font-size:17px;line-height:1.9;color:var(--ink-900);padding-top:24px;}
.article-body p{margin:0 0 1.4em;}
.article-body h2{
  font-size:clamp(20px,2.3vw,26px);
  font-weight:700;line-height:1.35;
  margin:2em 0 .8em;
  padding-left:14px;
  position:relative;
  scroll-margin-top:120px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.2em;bottom:.2em;width:3px;border-radius:3px;background:var(--brand-700);
}
.article-body h3{font-size:19px;font-weight:700;margin:1.6em 0 .6em;line-height:1.4;}
.article-body h4{font-size:17px;font-weight:700;margin:1.4em 0 .5em;}
.article-body ul,.article-body ol{margin:0 0 1.4em;padding-left:1.4em;}
.article-body ul{list-style:disc;}
.article-body ol{list-style:decimal;}
.article-body li{margin-bottom:.5em;}
.article-body blockquote{
  margin:1.6em 0;
  padding:16px 20px;
  border-left:3px solid var(--brand-700);
  background:var(--tint);
  border-radius:0 10px 10px 0;
  color:var(--ink-600);
}
.article-body img{border-radius:var(--radius-img);margin:1.6em auto;}
.article-body figure{max-width:100%;}
.article-body figcaption{font-size:13px;color:var(--ink-300);text-align:center;margin-top:10px;}
.article-body a{text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px;}
.article-body code{
  background:var(--tint);color:var(--brand-700);
  padding:2px 6px;border-radius:4px;font-size:.92em;
}
.article-body pre{
  background:var(--brand-900);color:#E8F2EE;
  padding:18px;border-radius:10px;overflow-x:auto;
  margin:1.6em 0;font-size:14.5px;line-height:1.7;
}
.article-body pre code{background:transparent;color:inherit;padding:0;}
.article-body table{width:100%;border-collapse:collapse;font-size:15px;margin:1.6em 0;}
.article-body .table-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch;}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 14px;text-align:left;}
.article-body th{background:var(--tint);font-weight:600;}
.article-body tbody tr:nth-child(even){background:var(--canvas);}
.article-body hr{border:0;border-top:1px solid var(--line);margin:2.2em 0;}

.tag-row{
  display:flex;flex-wrap:wrap;gap:10px;
  margin-top:36px;padding-top:22px;border-top:1px solid var(--line);
}
.back-row{
  display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;
  margin-top:26px;
}
.back-links{display:flex;flex-wrap:wrap;gap:10px;}

.notice{
  display:flex;gap:14px;align-items:flex-start;
  border:1px solid var(--line);
  border-left:3px solid var(--warning);
  border-radius:10px;
  background:var(--surface);
  padding:16px 18px;
  margin-top:28px;
  font-size:15px;
  color:var(--ink-600);
}
.notice svg{width:20px;height:20px;flex:0 0 20px;color:var(--warning);margin-top:3px;}
.empty-state{
  border:1px dashed var(--line);
  border-radius:var(--radius-card);
  background:var(--canvas);
  padding:48px 24px;
  text-align:center;
  color:var(--ink-600);
}
.empty-state svg{width:34px;height:34px;color:var(--ink-300);margin:0 auto 14px;}
.empty-state p{font-size:15.5px;margin-bottom:18px;}
.skeleton{
  height:14px;border-radius:7px;
  background:linear-gradient(90deg,var(--tint),var(--canvas),var(--tint));
  background-size:200% 100%;
  animation:sk 1.4s linear infinite;
}
@keyframes sk{0%{background-position:200% 0;}100%{background-position:-200% 0;}}

/* ---------- sidebar ---------- */
.article-side{position:sticky;top:132px;display:grid;gap:20px;}
.side-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);
  padding:20px;
}
.side-title{
  font-size:14px;font-weight:700;letter-spacing:.06em;
  color:var(--ink-900);
  padding-bottom:12px;margin-bottom:12px;
  border-bottom:1px solid var(--line);
}
.toc-list{display:grid;gap:2px;}
.toc-list a{
  display:block;padding:8px 10px;
  font-size:14.5px;color:var(--ink-600);
  border-radius:8px;border-left:2px solid transparent;
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.toc-list a:hover{background:var(--tint);color:var(--brand-700);border-left-color:var(--brand-700);}
.toc-list a.is-current{background:var(--tint);color:var(--brand-700);border-left-color:var(--brand-700);}
.side-links{display:grid;gap:2px;}
.side-links a{
  display:flex;align-items:center;justify-content:space-between;
  gap:10px;padding:10px 4px;
  font-size:14.5px;color:var(--ink-600);
  border-bottom:1px solid var(--line);
}
.side-links li:last-child a{border-bottom:0;}
.side-links a svg{width:15px;height:15px;color:var(--ink-300);transition:transform .22s var(--ease),color .22s var(--ease);}
.side-links a:hover{color:var(--brand-700);}
.side-links a:hover svg{transform:translateX(2px);color:var(--accent-500);}
.side-tip{font-size:13.5px;color:var(--ink-600);line-height:1.75;}

/* ---------- related ---------- */
.related{background:var(--surface);border-top:1px solid var(--line);}
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:var(--gap);}
.card{
  display:flex;flex-direction:column;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);
  overflow:hidden;
  transition:transform .26s var(--ease),box-shadow .26s var(--ease),border-color .26s var(--ease);
}
.card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:rgba(27,107,82,.3);}
.card-media{
  position:relative;aspect-ratio:16/9;overflow:hidden;
  background:linear-gradient(135deg,var(--tint),rgba(14,60,47,.12));
}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .32s var(--ease);}
.card:hover .card-media img{transform:scale(1.03);}
.card-media .pill{position:absolute;left:12px;top:12px;background:rgba(255,255,255,.92);box-shadow:var(--shadow-1);}
.card-body{padding:18px 18px 20px;display:flex;flex-direction:column;gap:10px;flex:1 1 auto;}
.card-body h3{font-size:18px;font-weight:600;line-height:1.4;}
.card-body h3 a{color:var(--ink-900);}
.card-body h3 a:hover{color:var(--brand-700);}
.card-body p{font-size:14.5px;color:var(--ink-600);line-height:1.7;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.card-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--ink-300);}
.card-foot .arrow{display:inline-flex;align-items:center;gap:6px;color:var(--brand-700);font-weight:600;}
.card-foot .arrow svg{width:15px;height:15px;transition:transform .22s var(--ease);}
.card:hover .card-foot .arrow svg{transform:translateX(3px);}

/* ---------- CTA strip ---------- */
.cta-strip{
  background:var(--brand-900);
  background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:26px 26px;
  color:#fff;
}
.cta-strip .container{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:18px;
  padding-top:34px;padding-bottom:34px;
}
.cta-strip h2{font-size:clamp(19px,2.3vw,26px);font-weight:700;line-height:1.4;}
.cta-strip p{font-size:14.5px;color:rgba(255,255,255,.72);margin-top:6px;}

/* ---------- footer ---------- */
.site-footer{
  background:var(--brand-900);
  background-image:linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);
  background-size:28px 28px;
  color:rgba(255,255,255,.78);
  padding:clamp(48px,6vw,72px) 0 26px;
  font-size:14px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1fr;
  gap:36px;
  padding-bottom:36px;
  border-bottom:1px solid rgba(255,255,255,.12);
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.footer-brand .brand-mark{background:rgba(255,255,255,.1);}
.footer-brand .brand-text b{color:#fff;font-size:15.5px;}
.footer-brand .brand-text span{color:rgba(255,255,255,.6);}
.footer-about{color:rgba(255,255,255,.68);line-height:1.8;max-width:420px;font-size:14px;}
.footer-col h3{font-size:14px;color:#fff;font-weight:700;margin-bottom:14px;letter-spacing:.04em;}
.footer-col ul{display:grid;gap:10px;}
.footer-col a{color:rgba(255,255,255,.68);font-size:14px;transition:color .2s var(--ease);}
.footer-col a:hover{color:#fff;text-decoration:underline;text-underline-offset:4px;}
.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;gap:14px;justify-content:space-between;
  padding-top:22px;
  font-size:13px;color:rgba(255,255,255,.6);
}
.footer-bottom-links{display:flex;gap:16px;flex-wrap:wrap;}
.footer-bottom-links a{color:rgba(255,255,255,.68);}
.footer-bottom-links a:hover{color:#fff;}
.to-top{
  width:40px;height:40px;flex:0 0 40px;
  display:grid;place-items:center;border-radius:50%;
  border:1px solid rgba(255,255,255,.24);
  color:#fff;
  transition:background .22s var(--ease),border-color .22s var(--ease);
}
.to-top svg{width:18px;height:18px;}
.to-top:hover{background:var(--brand-500);border-color:var(--brand-500);color:#fff;}

/* ---------- responsive ---------- */
@media (max-width:1199px){
  .article-grid{grid-template-columns:minmax(0,1fr) 270px;gap:32px;}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:28px;}
  .footer-grid>div:first-child{grid-column:1 / -1;}
}
@media (max-width:1023px){
  .menu-toggle{display:inline-flex;}
  .search-pill{display:none;}
  .topbar-actions .link-quiet{display:none;}
  .article-grid{grid-template-columns:minmax(0,1fr);gap:26px;}
  .article-side{position:static;top:auto;}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
}
@media (max-width:767px){
  body{font-size:15.5px;line-height:1.75;}
  .brand-text b{font-size:15px;}
  .brand-text span{font-size:11.5px;}
  .topbar{gap:12px;min-height:62px;}
  .btn{height:44px;padding:0 20px;font-size:14.5px;}
  .btn-sm{height:40px;padding:0 15px;}
  .channels-inner{padding:8px 0 10px;}
  .channel{padding:7px 14px;font-size:13.5px;}
  .article-main{padding:20px 16px 26px;border-radius:12px;}
  .article-body{font-size:16px;line-height:1.85;}
  .article-body h2{margin-top:1.7em;}
  .card-grid{grid-template-columns:minmax(0,1fr);}
  .section-head{flex-direction:column;align-items:flex-start;gap:8px;}
  .cta-strip .container{flex-direction:column;align-items:flex-start;}
  .cta-strip .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:24px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:519px){
  .footer-grid{grid-template-columns:1fr;}
  .crumb .current{max-width:70vw;}
  .back-row{flex-direction:column;align-items:stretch;}
  .back-row .btn{width:100%;}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important;}
  html{scroll-behavior:auto;}
}

/* roulang page: category1 */
:root{
  --brand-900:#08251C;
  --brand-700:#0E3C2F;
  --brand-500:#1B6B52;
  --accent-500:#FF5A1F;
  --accent-400:#FF7A45;
  --ink-900:#14181B;
  --ink-600:#4A5459;
  --ink-300:#98A2A8;
  --line:#E4E7E5;
  --canvas:#F6F7F5;
  --surface:#FFFFFF;
  --tint:#EAF2EF;
  --success:#1F9D55;
  --warning:#C7860A;
  --danger:#D64545;
  --radius-card:14px;
  --radius-img:10px;
  --radius-field:10px;
  --shadow-1:0 1px 2px rgba(16,24,20,.04), 0 8px 24px -12px rgba(16,24,20,.12);
  --shadow-2:0 2px 4px rgba(16,24,20,.05), 0 18px 40px -18px rgba(16,24,20,.20);
  --ease:cubic-bezier(.22,1,.36,1);
  --space-section:clamp(64px,8vw,120px);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--ink-900);
  background:var(--canvas);
  font-variant-numeric:tabular-nums;
}
img{max-width:100%;display:block;}
a{color:var(--brand-700);text-decoration:none;transition:color .22s var(--ease);}
a:hover{color:var(--accent-500);}
button,input{font:inherit;color:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
svg{flex:none;}
:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px;border-radius:4px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 clamp(20px,4vw,40px);}
.skip-link{position:absolute;left:-9999px;top:0;background:#fff;padding:10px 16px;border-radius:0 0 10px 0;z-index:200;}
.skip-link:focus{left:0;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 22px;border-radius:999px;
  font-size:15px;font-weight:600;line-height:1;border:1px solid transparent;
  cursor:pointer;white-space:nowrap;
  transition:background-color .24s var(--ease),color .24s var(--ease),border-color .24s var(--ease),box-shadow .24s var(--ease),transform .18s var(--ease);
}
.btn svg{width:18px;height:18px;transition:transform .24s var(--ease);}
.btn:hover svg{transform:translateX(2px);}
.btn:active{transform:translateY(1px);}
.btn-primary{background:var(--accent-500);color:#fff;box-shadow:0 8px 20px -10px rgba(255,90,31,.65);}
.btn-primary:hover{background:var(--accent-400);color:#fff;box-shadow:0 12px 26px -10px rgba(255,90,31,.7);}
.btn-ghost{background:var(--surface);border-color:var(--line);color:var(--ink-900);}
.btn-ghost:hover{border-color:var(--brand-500);color:var(--brand-700);}
.btn-light{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.34);color:#fff;}
.btn-light:hover{background:rgba(255,255,255,.2);color:#fff;border-color:rgba(255,255,255,.6);}
.btn-sm{height:38px;padding:0 16px;font-size:14px;}
.btn-block{width:100%;}
.link-quiet{font-size:14px;color:var(--ink-600);font-weight:500;}
.link-quiet:hover{color:var(--brand-700);}
.link-more{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand-700);position:relative;}
.link-more svg{width:16px;height:16px;transition:transform .24s var(--ease);}
.link-more:hover svg{transform:translateX(2px);}

/* ============ 徽章 / 标签 ============ */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:999px;background:var(--tint);color:var(--brand-700);
  font-size:13px;font-weight:600;letter-spacing:.02em;line-height:1.5;
}
.badge-warning{background:rgba(199,134,10,.12);color:#96660A;}
.badge-success{background:rgba(31,157,85,.12);color:#177A42;}
.badge-solid{background:var(--brand-700);color:#fff;}

/* ============ 头部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:70;background:var(--surface);
  border-bottom:1px solid var(--line);
  transition:box-shadow .3s var(--ease);
}
.site-header.is-scrolled{box-shadow:var(--shadow-1);}
.topbar{
  display:flex;align-items:center;gap:clamp(12px,2vw,28px);
  min-height:68px;padding:10px 0;
}
.brand{display:flex;align-items:center;gap:11px;flex:none;color:var(--ink-900);}
.brand:hover{color:var(--ink-900);}
.brand-mark{
  width:40px;height:40px;border-radius:12px;background:var(--brand-900);color:#fff;
  display:inline-flex;align-items:center;justify-content:center;flex:none;
}
.brand-mark svg{width:22px;height:22px;}
.brand-text{display:flex;flex-direction:column;line-height:1.18;}
.brand-text b{font-size:16px;font-weight:800;letter-spacing:-.01em;}
.brand-text span{font-size:12.5px;color:var(--ink-600);letter-spacing:.02em;}
.search-pill{
  flex:1 1 auto;max-width:400px;display:flex;align-items:center;gap:9px;
  height:44px;padding:0 16px;border:1px solid var(--line);border-radius:999px;background:var(--canvas);
  transition:border-color .24s var(--ease),box-shadow .24s var(--ease),background-color .24s var(--ease);
}
.search-pill svg{width:17px;height:17px;color:var(--ink-300);}
.search-pill input{
  border:0;background:transparent;outline:none;width:100%;font-size:14.5px;color:var(--ink-900);
}
.search-pill input::placeholder{color:var(--ink-300);}
.search-pill:focus-within{border-color:var(--brand-500);background:var(--surface);box-shadow:0 0 0 4px rgba(27,107,82,.08);}
.topbar-actions{display:flex;align-items:center;gap:14px;margin-left:auto;flex:none;}
.menu-toggle{
  display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);background:var(--surface);
  align-items:center;justify-content:center;cursor:pointer;color:var(--ink-900);
}
.menu-toggle svg{width:22px;height:22px;}
.channels{border-top:1px solid var(--line);background:var(--surface);}
.channels-inner{
  display:flex;gap:10px;align-items:center;
  padding:11px 0;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;
}
.channels-inner::-webkit-scrollbar{display:none;}
.channel{
  flex:none;display:inline-flex;align-items:center;
  height:38px;padding:0 17px;border-radius:999px;
  font-size:14.5px;font-weight:600;color:var(--ink-600);
  border:1px solid var(--line);background:var(--surface);
  transition:background-color .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease);
}
.channel:hover{background:var(--tint);color:var(--brand-700);border-color:transparent;}
.channel.is-active{background:var(--brand-700);color:#fff;border-color:var(--brand-700);}

/* ============ 移动抽屉 ============ */
.drawer{
  position:fixed;inset:0;z-index:120;background:var(--surface);
  transform:translateY(-100%);visibility:hidden;
  transition:transform .34s var(--ease),visibility .34s var(--ease);
  display:flex;flex-direction:column;padding:18px clamp(20px,5vw,28px) 28px;overflow-y:auto;
}
.drawer.is-open{transform:translateY(0);visibility:visible;}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:16px;padding-bottom:16px;border-bottom:1px solid var(--line);}
.drawer-close{width:44px;height:44px;border-radius:12px;border:1px solid var(--line);background:var(--surface);display:inline-flex;align-items:center;justify-content:center;cursor:pointer;}
.drawer-close svg{width:20px;height:20px;}
.drawer-nav{display:flex;flex-direction:column;margin:14px 0 20px;}
.drawer-nav a{
  padding:15px 4px;font-size:17px;font-weight:600;color:var(--ink-900);
  border-bottom:1px solid var(--line);
}
.drawer-nav a.is-active{color:var(--brand-700);}
.drawer-cta{margin-top:auto;display:grid;gap:12px;}
body.no-scroll{overflow:hidden;}

/* ============ 首屏 ============ */
.hero{position:relative;overflow:hidden;background:var(--canvas);border-bottom:1px solid var(--line);}
.hero::before{
  content:"";position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-2.png");
  background-size:cover;background-position:center;
  opacity:.16;
}
.hero::after{
  content:"";position:absolute;inset:0;
  background:
    linear-gradient(180deg,rgba(246,247,245,.55) 0%,rgba(246,247,245,.92) 62%,var(--canvas) 100%),
    repeating-linear-gradient(0deg,rgba(8,37,28,.045) 0 1px,transparent 1px 56px),
    repeating-linear-gradient(90deg,rgba(8,37,28,.045) 0 1px,transparent 1px 56px);
}
.hero-inner{position:relative;z-index:2;padding:clamp(48px,7vw,86px) 0 clamp(40px,5vw,64px);}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--ink-300);letter-spacing:.02em;margin-bottom:20px;}
.crumbs a{color:var(--ink-600);}
.crumbs a:hover{color:var(--accent-500);}
.crumbs span.sep{color:var(--ink-300);}
.crumbs .current{color:var(--ink-600);}
.hero h1{
  font-size:clamp(32px,5.2vw,56px);font-weight:800;line-height:1.1;letter-spacing:-.02em;
  max-width:16em;margin:14px 0 18px;color:var(--ink-900);
}
.hero-lead{max-width:44em;font-size:clamp(15.5px,1.6vw,17.5px);line-height:1.85;color:var(--ink-600);}
.hero-meta{display:flex;flex-wrap:wrap;gap:22px;margin-top:26px;padding-top:22px;border-top:1px solid rgba(8,37,28,.1);}
.hero-meta div{min-width:120px;}
.hero-meta strong{display:block;font-size:clamp(20px,2.4vw,26px);font-weight:800;letter-spacing:-.01em;color:var(--brand-700);line-height:1.3;}
.hero-meta span{font-size:13px;color:var(--ink-600);letter-spacing:.02em;}

/* ============ 锚点条 ============ */
.anchor-bar{
  position:relative;z-index:2;
  display:flex;gap:10px;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;
  padding:0 0 22px;
}
.anchor-bar::-webkit-scrollbar{display:none;}
.anchor-bar a{
  flex:none;display:inline-flex;align-items:center;height:36px;padding:0 15px;border-radius:999px;
  background:var(--surface);border:1px solid var(--line);font-size:13.5px;font-weight:600;color:var(--ink-600);
  transition:background-color .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease);
}
.anchor-bar a:hover{background:var(--tint);color:var(--brand-700);border-color:transparent;}

/* ============ 板块 ============ */
.section{padding:var(--space-section) 0 0;}
.section:last-of-type{padding-bottom:var(--space-section);}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:18px;margin-bottom:36px;}
.section-head .head-left{max-width:44em;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;
  letter-spacing:.1em;text-transform:uppercase;color:var(--brand-500);margin-bottom:12px;
}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--brand-500);}
.section h2{
  font-size:clamp(24px,3vw,34px);font-weight:700;line-height:1.25;letter-spacing:-.01em;color:var(--ink-900);
  border-left:3px solid var(--brand-500);padding-left:16px;
}
.section-desc{margin-top:14px;color:var(--ink-600);font-size:15.5px;line-height:1.85;max-width:46em;}

/* ============ 两栏主体 ============ */
.layout-2{display:grid;grid-template-columns:minmax(0,1.55fr) minmax(0,.95fr);gap:clamp(24px,3vw,36px);align-items:start;}

/* 时间轴 */
.timeline{position:relative;padding-left:56px;}
.timeline::before{
  content:"";position:absolute;left:19px;top:10px;bottom:10px;width:1px;background:var(--line);
}
.timeline li{position:relative;padding:0 0 30px;}
.timeline li:last-child{padding-bottom:0;}
.step-num{
  position:absolute;left:-56px;top:0;width:40px;height:40px;border-radius:50%;
  background:var(--surface);border:1px solid var(--line);color:var(--brand-700);
  display:inline-flex;align-items:center;justify-content:center;
  font-size:14px;font-weight:800;letter-spacing:.02em;
  transition:background-color .24s var(--ease),color .24s var(--ease),border-color .24s var(--ease);
}
.timeline li:hover .step-num{background:var(--brand-700);color:#fff;border-color:var(--brand-700);}
.step-body{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:20px 22px;box-shadow:var(--shadow-1);
  transition:transform .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease);
}
.timeline li:hover .step-body{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:rgba(27,107,82,.3);}
.step-body h3{font-size:18px;font-weight:700;line-height:1.4;margin-bottom:8px;color:var(--ink-900);}
.step-body p{font-size:15px;color:var(--ink-600);line-height:1.8;}
.step-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px;}

/* 侧栏 */
.aside{display:grid;gap:22px;position:sticky;top:108px;}
.phone-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;box-shadow:var(--shadow-1);
}
.phone-card img{width:100%;aspect-ratio:4/3;object-fit:cover;}
.phone-card .phone-body{padding:20px 22px 24px;}
.phone-card h3{font-size:18px;font-weight:700;margin-bottom:8px;}
.phone-card p{font-size:14.5px;color:var(--ink-600);line-height:1.8;}
.phone-list{margin-top:16px;border-top:1px solid var(--line);}
.phone-list li{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:11px 0;border-bottom:1px solid var(--line);font-size:14px;color:var(--ink-600);
}
.phone-list li:last-child{border-bottom:0;}
.phone-list b{color:var(--ink-900);font-weight:700;}

.notice{
  border:1px solid rgba(199,134,10,.35);border-left:3px solid var(--warning);
  background:rgba(199,134,10,.06);border-radius:12px;padding:18px 20px;
}
.notice h3{font-size:15.5px;font-weight:700;color:#8C5F0A;margin-bottom:8px;display:flex;align-items:center;gap:8px;}
.notice h3 svg{width:18px;height:18px;}
.notice p{font-size:14px;color:var(--ink-600);line-height:1.8;}
.notice ul{margin-top:10px;display:grid;gap:8px;}
.notice li{font-size:14px;color:var(--ink-600);line-height:1.75;padding-left:14px;position:relative;}
.notice li::before{content:"";position:absolute;left:0;top:11px;width:5px;height:5px;border-radius:50%;background:var(--warning);}

/* 准备清单 */
.check-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px 26px;}
.check-item{
  display:flex;align-items:flex-start;gap:12px;padding:16px 18px;
  background:var(--surface);border:1px solid var(--line);border-radius:12px;
  transition:border-color .24s var(--ease),transform .24s var(--ease);
}
.check-item:hover{border-color:rgba(27,107,82,.35);transform:translateY(-2px);}
.check-item .tick{
  width:24px;height:24px;border-radius:50%;background:var(--tint);color:var(--brand-700);
  display:inline-flex;align-items:center;justify-content:center;flex:none;margin-top:2px;
}
.check-item .tick svg{width:15px;height:15px;}
.check-item strong{display:block;font-size:15.5px;font-weight:700;margin-bottom:4px;}
.check-item span{font-size:14px;color:var(--ink-600);line-height:1.75;}

/* 速查卡 */
.quick-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.quick-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:22px 22px 24px;box-shadow:var(--shadow-1);
  transition:transform .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease);
  display:flex;flex-direction:column;
}
.quick-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:rgba(27,107,82,.3);}
.quick-card .q-idx{
  font-size:13px;font-weight:800;letter-spacing:.12em;color:var(--accent-500);margin-bottom:12px;
}
.quick-card h3{font-size:17px;font-weight:700;line-height:1.45;margin-bottom:10px;}
.quick-card p{font-size:14.5px;color:var(--ink-600);line-height:1.8;}
.quick-card .q-foot{margin-top:16px;padding-top:14px;border-top:1px solid var(--line);display:flex;align-items:center;gap:8px;font-size:13.5px;color:var(--ink-300);}

/* 安全底线 */
.safety{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:clamp(24px,3vw,36px);box-shadow:var(--shadow-1);
}
.safety-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;margin-top:26px;}
.safety-item{border-top:2px solid var(--brand-500);padding-top:16px;}
.safety-item h3{font-size:16.5px;font-weight:700;margin-bottom:8px;}
.safety-item p{font-size:14.5px;color:var(--ink-600);line-height:1.8;}

/* FAQ */
.faq{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);padding:8px clamp(20px,3vw,34px);box-shadow:var(--shadow-1);}
.faq details{border-bottom:1px solid var(--line);}
.faq details:last-child{border-bottom:0;}
.faq summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 0;font-size:16.5px;font-weight:600;color:var(--ink-900);line-height:1.5;
  transition:color .22s var(--ease);
}
.faq summary::-webkit-details-marker{display:none;}
.faq summary:hover{color:var(--brand-700);}
.faq summary .chev{
  width:28px;height:28px;border-radius:50%;background:var(--tint);color:var(--brand-700);
  display:inline-flex;align-items:center;justify-content:center;flex:none;
  transition:transform .24s var(--ease),background-color .24s var(--ease);
}
.faq summary .chev svg{width:16px;height:16px;}
.faq details[open] summary .chev{transform:rotate(180deg);background:var(--brand-700);color:#fff;}
.faq-body{padding:0 0 22px;font-size:15px;color:var(--ink-600);line-height:1.85;max-width:60em;}

/* CTA */
.cta-band{
  position:relative;overflow:hidden;background:var(--brand-900);color:#fff;
  border-radius:20px;padding:clamp(32px,4.4vw,56px);
}
.cta-band::after{
  content:"";position:absolute;inset:0;opacity:.5;
  background:
    repeating-linear-gradient(0deg,rgba(255,255,255,.055) 0 1px,transparent 1px 48px),
    repeating-linear-gradient(90deg,rgba(255,255,255,.055) 0 1px,transparent 1px 48px);
  pointer-events:none;
}
.cta-inner{position:relative;z-index:2;display:grid;grid-template-columns:minmax(0,1.4fr) minmax(0,1fr);gap:28px;align-items:center;}
.cta-band h2{border:0;padding:0;color:#fff;font-size:clamp(24px,3vw,34px);font-weight:800;line-height:1.25;}
.cta-band p{margin-top:14px;font-size:15.5px;line-height:1.85;color:rgba(255,255,255,.78);max-width:38em;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:flex-end;}

/* ============ 页脚 ============ */
.site-footer{
  margin-top:var(--space-section);
  background:var(--brand-900);color:rgba(255,255,255,.72);position:relative;overflow:hidden;
}
.site-footer::before{
  content:"";position:absolute;inset:0;opacity:.45;pointer-events:none;
  background:
    repeating-linear-gradient(0deg,rgba(255,255,255,.05) 0 1px,transparent 1px 52px),
    repeating-linear-gradient(90deg,rgba(255,255,255,.05) 0 1px,transparent 1px 52px);
}
.site-footer .container{position:relative;z-index:2;}
.footer-grid{display:grid;grid-template-columns:minmax(0,1.5fr) repeat(3,minmax(0,1fr));gap:36px;padding:clamp(44px,5vw,68px) 0 36px;}
.footer-brand{display:flex;align-items:center;gap:11px;margin-bottom:16px;}
.footer-brand .brand-mark{background:rgba(255,255,255,.1);color:#fff;}
.footer-brand .brand-text b{color:#fff;font-size:16px;font-weight:800;}
.footer-brand .brand-text span{color:rgba(255,255,255,.62);font-size:12.5px;}
.footer-about{font-size:14px;line-height:1.85;color:rgba(255,255,255,.66);max-width:30em;}
.footer-col h3{font-size:14px;font-weight:700;color:#9FD3BF;letter-spacing:.06em;margin-bottom:16px;}
.footer-col ul{display:grid;gap:11px;}
.footer-col a{font-size:14px;color:rgba(255,255,255,.72);}
.footer-col a:hover{color:#fff;text-decoration:underline;}
.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 0 28px;border-top:1px solid rgba(255,255,255,.14);
  font-size:13px;color:rgba(255,255,255,.58);
}
.footer-bottom-links{display:flex;gap:18px;}
.footer-bottom-links a{color:rgba(255,255,255,.7);font-size:13px;}
.footer-bottom-links a:hover{color:#fff;}
.to-top{
  width:42px;height:42px;border-radius:50%;background:rgba(255,255,255,.1);color:#fff;
  display:inline-flex;align-items:center;justify-content:center;flex:none;
  transition:background-color .24s var(--ease),transform .24s var(--ease);
}
.to-top svg{width:19px;height:19px;}
.to-top:hover{background:var(--brand-500);color:#fff;transform:translateY(-2px);}

/* ============ 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:1199px){
  .quick-grid{gap:20px;}
  .hero h1{max-width:20em;}
}
@media (max-width:1023px){
  .search-pill{display:none;}
  .topbar-actions .link-quiet{display:none;}
  .menu-toggle{display:inline-flex;}
  .layout-2{grid-template-columns:minmax(0,1fr);}
  .aside{position:static;}
  .quick-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .safety-grid{grid-template-columns:minmax(0,1fr);}
  .cta-inner{grid-template-columns:minmax(0,1fr);}
  .cta-actions{justify-content:flex-start;}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:30px;}
}
@media (max-width:767px){
  body{font-size:15.5px;line-height:1.75;}
  .topbar-actions .btn-primary{display:none;}
  .brand-text b{font-size:15px;}
  .brand-text span{font-size:12px;}
  .hero-inner{padding:36px 0 28px;}
  .hero h1{font-size:clamp(28px,8vw,38px);max-width:none;}
  .hero-meta{gap:16px;}
  .hero-meta div{min-width:calc(50% - 8px);}
  .check-grid{grid-template-columns:minmax(0,1fr);}
  .quick-grid{grid-template-columns:minmax(0,1fr);}
  .timeline{padding-left:46px;}
  .timeline::before{left:15px;}
  .step-num{left:-46px;width:32px;height:32px;font-size:12.5px;}
  .step-body{padding:18px;}
  .faq summary{font-size:16px;padding:17px 0;}
  .cta-band{border-radius:16px;}
  .footer-grid{grid-template-columns:minmax(0,1fr);gap:26px;padding:40px 0 28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .to-top{align-self:flex-end;}
}
@media (max-width:479px){
  .btn{width:100%;}
  .btn-sm{width:100%;}
  .anchor-bar{gap:8px;}
  .drawer-cta .btn{width:100%;}
  .hero-meta div{min-width:100%;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition-duration:.001ms !important;animation-duration:.001ms !important;}
  .reveal{opacity:1;transform:none;}
  html{scroll-behavior:auto;}
}

/* roulang page: category2 */
:root{
  --brand-900:#08251C;
  --brand-700:#0E3C2F;
  --brand-500:#1B6B52;
  --accent-500:#FF5A1F;
  --accent-400:#FF7A45;
  --ink-900:#14181B;
  --ink-600:#4A5459;
  --ink-300:#98A2A8;
  --line:#E4E7E5;
  --canvas:#F6F7F5;
  --surface:#FFFFFF;
  --tint:#EAF2EF;
  --success:#1F9D55;
  --warning:#C7860A;
  --danger:#D64545;
  --radius-card:14px;
  --radius-img:10px;
  --radius-input:10px;
  --shadow-1:0 1px 2px rgba(16,24,20,.04), 0 8px 24px -12px rgba(16,24,20,.12);
  --shadow-2:0 2px 4px rgba(16,24,20,.05), 0 16px 36px -14px rgba(16,24,20,.20);
  --ease:cubic-bezier(0.22,1,0.36,1);
  --font:-apple-system, "PingFang SC", "HarmonyOS Sans SC", "Noto Sans SC", "Microsoft YaHei", sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  color:var(--ink-900);
  background:var(--canvas);
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;border-radius:var(--radius-img);}
a{color:var(--brand-700);text-decoration:none;transition:color .22s var(--ease);}
a:hover{color:var(--accent-500);}
button,input{font-family:inherit;font-size:inherit;color:inherit;}
button{cursor:pointer;border:0;background:none;}
h1,h2,h3,h4{margin:0;color:var(--ink-900);letter-spacing:-0.01em;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
svg{flex:none;}
:focus-visible{outline:2px solid var(--brand-700);outline-offset:2px;border-radius:6px;}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--brand-700);color:#fff;padding:10px 18px;border-radius:0 0 10px 0;z-index:200;}
.skip-link:focus{left:0;color:#fff;}

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding-left:clamp(20px,4vw,40px);
  padding-right:clamp(20px,4vw,40px);
}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:var(--surface);
  border-bottom:1px solid var(--line);
  transition:box-shadow .28s var(--ease);
}
.site-header.is-scrolled{box-shadow:var(--shadow-1);}
.topbar{
  display:flex;
  align-items:center;
  gap:clamp(12px,2vw,24px);
  min-height:72px;
  padding:10px 0;
}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;flex:none;}
.brand-mark{
  width:38px;height:38px;
  display:grid;place-items:center;
  border-radius:11px;
  background:var(--tint);
  color:var(--brand-700);
}
.brand-mark svg{width:22px;height:22px;}
.brand-text{display:flex;flex-direction:column;line-height:1.2;}
.brand-text b{font-size:15.5px;font-weight:800;color:var(--ink-900);letter-spacing:.01em;}
.brand-text span{font-size:12.5px;color:var(--ink-600);letter-spacing:.03em;}
.search-pill{
  flex:1 1 auto;
  max-width:400px;
  display:flex;
  align-items:center;
  gap:9px;
  height:42px;
  padding:0 16px;
  border:1px solid var(--line);
  border-radius:999px;
  background:var(--canvas);
  transition:border-color .22s var(--ease), box-shadow .22s var(--ease), background .22s var(--ease);
}
.search-pill svg{width:18px;height:18px;color:var(--ink-300);}
.search-pill input{
  flex:1;
  min-width:0;
  border:0;
  background:transparent;
  outline:none;
  font-size:14px;
}
.search-pill input::placeholder{color:var(--ink-300);}
.search-pill:focus-within{
  border-color:var(--brand-500);
  background:var(--surface);
  box-shadow:0 0 0 4px rgba(27,107,82,.08);
}
.topbar-actions{display:flex;align-items:center;gap:14px;margin-left:auto;}
.link-quiet{
  font-size:14px;
  color:var(--ink-600);
  position:relative;
}
.link-quiet::after{
  content:"";
  position:absolute;left:0;bottom:-4px;
  width:0;height:2px;background:var(--accent-500);
  transition:width .26s var(--ease);
}
.link-quiet:hover{color:var(--brand-700);}
.link-quiet:hover::after{width:100%;}
.menu-toggle{
  display:none;
  width:44px;height:44px;
  border:1px solid var(--line);
  border-radius:12px;
  color:var(--ink-900);
  place-items:center;
}
.menu-toggle svg{width:22px;height:22px;}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 26px;
  border-radius:999px;
  border:1px solid transparent;
  font-size:15px;
  font-weight:600;
  letter-spacing:.01em;
  text-decoration:none;
  transition:background .22s var(--ease), color .22s var(--ease), border-color .22s var(--ease), transform .18s var(--ease), box-shadow .22s var(--ease);
}
.btn svg{width:18px;height:18px;transition:transform .22s var(--ease);}
.btn:hover svg{transform:translateX(2px);}
.btn:active{transform:translateY(1px);}
.btn-primary{background:var(--accent-500);color:#fff;box-shadow:0 10px 22px -12px rgba(255,90,31,.75);}
.btn-primary:hover{background:var(--accent-400);color:#fff;}
.btn-ghost{background:var(--surface);border-color:var(--line);color:var(--ink-900);}
.btn-ghost:hover{border-color:var(--brand-500);color:var(--brand-700);}
.btn-sm{height:42px;padding:0 18px;font-size:14px;}

.channels{border-top:1px solid var(--line);background:var(--surface);}
.channels-inner{
  display:flex;
  gap:8px;
  overflow-x:auto;
  padding:10px 0;
  scrollbar-width:none;
}
.channels-inner::-webkit-scrollbar{display:none;}
.channel{
  flex:none;
  padding:8px 18px;
  border-radius:999px;
  border:1px solid var(--line);
  background:var(--surface);
  color:var(--ink-600);
  font-size:14px;
  white-space:nowrap;
  transition:background .22s var(--ease), color .22s var(--ease), border-color .22s var(--ease);
}
.channel:hover{background:var(--tint);color:var(--brand-700);border-color:transparent;}
.channel.is-active{background:var(--brand-700);border-color:var(--brand-700);color:#fff;}
.channel.is-active:hover{background:var(--brand-900);color:#fff;}

/* 移动抽屉 */
.mobile-drawer{
  position:fixed;
  inset:0;
  z-index:120;
  background:var(--surface);
  display:none;
  flex-direction:column;
  padding:20px clamp(20px,5vw,32px) 32px;
  overflow-y:auto;
}
.mobile-drawer.is-open{display:flex;}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px;}
.drawer-close{
  width:44px;height:44px;border:1px solid var(--line);border-radius:12px;
  display:grid;place-items:center;color:var(--ink-900);
}
.drawer-close svg{width:20px;height:20px;}
.drawer-nav{display:flex;flex-direction:column;gap:6px;margin-top:8px;}
.drawer-nav a{
  padding:14px 4px;
  border-bottom:1px solid var(--line);
  font-size:16px;
  color:var(--ink-900);
  font-weight:600;
}
.drawer-nav a:hover{color:var(--brand-700);}
.drawer-nav a.is-active{color:var(--accent-500);}
.drawer-search{
  display:flex;align-items:center;gap:9px;height:46px;padding:0 16px;
  border:1px solid var(--line);border-radius:999px;background:var(--canvas);
}
.drawer-search svg{width:18px;height:18px;color:var(--ink-300);}
.drawer-search input{flex:1;min-width:0;border:0;background:transparent;outline:none;font-size:14px;}
.drawer-cta{margin-top:24px;width:100%;}

/* ---------- Hero ---------- */
.page-hero{
  position:relative;
  color:#fff;
  padding:clamp(46px,7vw,86px) 0 clamp(48px,7vw,88px);
  background-image:linear-gradient(118deg, rgba(8,37,28,.95) 0%, rgba(14,60,47,.82) 52%, rgba(27,107,82,.66) 100%), url(/assets/images/backpic/back-2.png);
  background-size:cover;
  background-position:center;
  overflow:hidden;
}
.page-hero::after{
  content:"";
  position:absolute;
  inset:0;
  background-image:linear-gradient(rgba(255,255,255,.06) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.06) 1px, transparent 1px);
  background-size:64px 64px;
  pointer-events:none;
}
.page-hero .container{position:relative;z-index:1;}
.breadcrumb{display:flex;flex-wrap:wrap;gap:6px;font-size:13px;color:rgba(255,255,255,.72);letter-spacing:.02em;margin-bottom:20px;}
.breadcrumb a{color:rgba(255,255,255,.78);}
.breadcrumb a:hover{color:#fff;}
.breadcrumb span{color:rgba(255,255,255,.55);}
.breadcrumb .current{color:#fff;}
.page-hero h1{
  font-size:clamp(30px,5vw,54px);
  font-weight:800;
  line-height:1.1;
  letter-spacing:-0.02em;
  color:#fff;
  max-width:20em;
  margin:16px 0 18px;
}
.hero-lead{
  font-size:clamp(16px,1.5vw,18px);
  line-height:1.75;
  color:rgba(255,255,255,.86);
  max-width:44em;
}
.hero-meta{
  display:flex;flex-wrap:wrap;gap:10px 22px;
  margin-top:26px;
  font-size:13.5px;
  color:rgba(255,255,255,.72);
}
.hero-meta span{display:inline-flex;align-items:center;gap:7px;}
.hero-meta svg{width:16px;height:16px;color:var(--accent-400);}

.badge{
  display:inline-flex;align-items:center;gap:7px;
  padding:6px 14px;
  border-radius:999px;
  background:var(--tint);
  color:var(--brand-700);
  font-size:13px;
  letter-spacing:.02em;
  font-weight:600;
}
.badge-light{background:rgba(255,255,255,.14);color:#fff;}
.badge svg{width:15px;height:15px;}

/* 锚点行 */
.anchor-bar{background:var(--surface);border-bottom:1px solid var(--line);}
.anchor-row{
  display:flex;gap:10px;overflow-x:auto;
  padding:14px 0;scrollbar-width:none;
}
.anchor-row::-webkit-scrollbar{display:none;}
.anchor-pill{
  flex:none;
  padding:7px 16px;
  border-radius:999px;
  background:var(--canvas);
  border:1px solid var(--line);
  font-size:13.5px;
  color:var(--ink-600);
  white-space:nowrap;
  transition:background .22s var(--ease), color .22s var(--ease), border-color .22s var(--ease);
}
.anchor-pill:hover{background:var(--tint);color:var(--brand-700);border-color:transparent;}

/* ---------- 板块通用 ---------- */
.section{padding:clamp(56px,7vw,100px) 0;}
.section-alt{background:var(--surface);}
.section-head{max-width:760px;margin-bottom:clamp(28px,4vw,48px);}
.section-head h2{
  position:relative;
  font-size:clamp(24px,3vw,38px);
  font-weight:700;
  line-height:1.22;
  padding-left:16px;
}
.section-head h2::before{
  content:"";
  position:absolute;left:0;top:.18em;bottom:.18em;
  width:3px;border-radius:3px;background:var(--brand-700);
}
.section-head p{margin-top:14px;color:var(--ink-600);font-size:16px;line-height:1.8;max-width:42em;}
.section-head-row{
  display:flex;align-items:flex-end;justify-content:space-between;gap:20px;
  margin-bottom:clamp(28px,4vw,48px);flex-wrap:wrap;
}
.section-head-row .section-head{margin-bottom:0;}
.more-link{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14.5px;font-weight:600;color:var(--brand-700);
  border-bottom:1px solid transparent;
  transition:color .22s var(--ease), border-color .22s var(--ease);
}
.more-link svg{width:17px;height:17px;transition:transform .22s var(--ease);}
.more-link:hover{color:var(--accent-500);border-color:var(--accent-500);}
.more-link:hover svg{transform:translateX(2px);}

/* ---------- 规格对照表 ---------- */
.table-wrap{
  overflow-x:auto;
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  background:var(--surface);
  box-shadow:var(--shadow-1);
  -webkit-overflow-scrolling:touch;
}
table.spec-table{
  width:100%;
  min-width:660px;
  border-collapse:collapse;
  font-size:15px;
}
.spec-table caption{
  caption-side:top;
  text-align:left;
  padding:20px 24px 6px;
  font-size:14px;
  color:var(--ink-600);
}
.spec-table th,
.spec-table td{
  padding:16px 24px;
  text-align:left;
  border-bottom:1px solid var(--line);
  vertical-align:top;
  line-height:1.7;
}
.spec-table thead th{
  background:var(--tint);
  color:var(--brand-700);
  font-size:14px;
  font-weight:700;
  letter-spacing:.03em;
  border-bottom:1px solid var(--line);
  white-space:nowrap;
}
.spec-table tbody tr:nth-child(even){background:var(--canvas);}
.spec-table tbody tr:last-child td{border-bottom:0;}
.spec-table td:first-child{font-weight:600;color:var(--ink-900);white-space:nowrap;}
.spec-table td .tag-line{display:inline-block;padding:2px 10px;border-radius:999px;background:var(--tint);color:var(--brand-700);font-size:12.5px;font-weight:600;}
.table-note{margin-top:16px;font-size:14px;color:var(--ink-600);}

/* ---------- 卡片网格 ---------- */
.card-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:24px;
}
.card{
  display:flex;
  flex-direction:column;
  gap:12px;
  padding:26px 24px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);
  transition:transform .24s var(--ease), box-shadow .24s var(--ease), border-color .24s var(--ease);
}
.card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:rgba(27,107,82,.3);}
.card-icon{
  width:44px;height:44px;border-radius:12px;
  display:grid;place-items:center;
  background:var(--tint);color:var(--brand-700);
}
.card-icon svg{width:22px;height:22px;}
.card h3{font-size:18.5px;font-weight:600;line-height:1.35;}
.card p{font-size:14.8px;color:var(--ink-600);line-height:1.75;}
.card-foot{
  margin-top:auto;padding-top:10px;
  display:flex;align-items:center;gap:6px;
  font-size:13.5px;color:var(--ink-300);
}

/* 设备提示条 */
.tip-bar{
  display:flex;
  align-items:flex-start;
  gap:16px;
  padding:20px 24px;
  border-radius:var(--radius-card);
  background:var(--tint);
  border:1px solid rgba(27,107,82,.14);
  margin-top:28px;
}
.tip-bar svg{width:22px;height:22px;color:var(--brand-700);margin-top:3px;}
.tip-bar strong{display:block;font-size:15.5px;color:var(--brand-900);margin-bottom:4px;}
.tip-bar p{font-size:14.6px;color:var(--ink-600);line-height:1.75;}

/* ---------- 图文 + 流程时间轴 ---------- */
.split{
  display:grid;
  grid-template-columns:minmax(0,5fr) minmax(0,7fr);
  gap:clamp(28px,4vw,56px);
  align-items:start;
}
.split-figure{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:14px;
  box-shadow:var(--shadow-1);
}
.split-figure img{width:100%;border-radius:8px;}
.split-figure figcaption{margin-top:12px;font-size:13px;color:var(--ink-300);text-align:center;letter-spacing:.02em;}

.steps{position:relative;display:flex;flex-direction:column;gap:26px;}
.step{position:relative;display:grid;grid-template-columns:52px minmax(0,1fr);gap:18px;}
.step::before{
  content:"";
  position:absolute;left:25px;top:52px;bottom:-26px;
  width:1px;background:var(--line);
}
.step:last-child::before{display:none;}
.step-num{
  width:52px;height:52px;border-radius:50%;
  display:grid;place-items:center;
  background:var(--surface);
  border:1px solid var(--line);
  color:var(--brand-700);
  font-weight:800;
  font-size:16px;
  letter-spacing:.02em;
  transition:background .24s var(--ease), color .24s var(--ease), border-color .24s var(--ease);
  position:relative;z-index:1;
}
.step:hover .step-num{background:var(--brand-700);border-color:var(--brand-700);color:#fff;}
.step h3{font-size:18px;font-weight:600;margin-bottom:6px;}
.step p{font-size:15px;color:var(--ink-600);line-height:1.8;}
.step .step-tag{
  display:inline-block;margin-top:10px;
  padding:3px 11px;border-radius:999px;
  background:var(--canvas);border:1px solid var(--line);
  font-size:12.5px;color:var(--ink-600);
}

/* ---------- FAQ ---------- */
.faq-list{border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item summary{
  list-style:none;
  cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:22px 2px;
  font-size:16.5px;font-weight:600;color:var(--ink-900);
  transition:color .22s var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--brand-700);}
.faq-item summary .chev{
  width:30px;height:30px;flex:none;border-radius:50%;
  display:grid;place-items:center;
  border:1px solid var(--line);color:var(--ink-600);
  transition:transform .24s var(--ease), background .24s var(--ease), color .24s var(--ease), border-color .24s var(--ease);
}
.faq-item summary .chev svg{width:16px;height:16px;}
.faq-item[open] summary{color:var(--brand-700);}
.faq-item[open] summary .chev{transform:rotate(180deg);background:var(--brand-700);border-color:var(--brand-700);color:#fff;}
.faq-body{padding:0 2px 24px;font-size:15.2px;line-height:1.85;color:var(--ink-600);max-width:74ch;}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;
  color:#fff;
  padding:clamp(48px,6vw,76px) 0;
  background-color:var(--brand-900);
  overflow:hidden;
}
.cta-band::after{
  content:"";
  position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.05) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.05) 1px, transparent 1px);
  background-size:56px 56px;
  pointer-events:none;
}
.cta-inner{
  position:relative;z-index:1;
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
}
.cta-inner h2{color:#fff;font-size:clamp(22px,2.6vw,32px);font-weight:700;line-height:1.3;max-width:26em;}
.cta-inner p{margin-top:10px;color:rgba(255,255,255,.75);font-size:15px;max-width:40em;}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--brand-900);
  color:rgba(255,255,255,.72);
  position:relative;
  padding:clamp(48px,6vw,72px) 0 0;
  overflow:hidden;
}
.site-footer::after{
  content:"";
  position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.04) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.04) 1px, transparent 1px);
  background-size:60px 60px;
  pointer-events:none;
}
.site-footer .container{position:relative;z-index:1;}
.footer-grid{
  display:grid;
  grid-template-columns:minmax(0,1.6fr) repeat(3, minmax(0,1fr));
  gap:clamp(24px,4vw,48px);
  padding-bottom:44px;
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-mark{background:rgba(255,255,255,.1);color:#fff;}
.footer-brand .brand-text b{color:#fff;}
.footer-brand .brand-text span{color:rgba(255,255,255,.6);}
.footer-about{font-size:14.2px;line-height:1.85;color:rgba(255,255,255,.66);max-width:34em;}
.footer-col h3{font-size:14px;font-weight:700;color:rgba(255,255,255,.92);margin-bottom:16px;letter-spacing:.04em;}
.footer-col ul{display:flex;flex-direction:column;gap:11px;}
.footer-col a{font-size:14px;color:rgba(255,255,255,.68);}
.footer-col a:hover{color:#fff;text-decoration:underline;text-underline-offset:4px;}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap;
  padding:20px 0 26px;
  border-top:1px solid rgba(255,255,255,.12);
  font-size:13.2px;
  color:rgba(255,255,255,.55);
}
.footer-bottom-links{display:flex;gap:18px;}
.footer-bottom-links a{color:rgba(255,255,255,.62);font-size:13.2px;}
.footer-bottom-links a:hover{color:#fff;}
.to-top{
  width:42px;height:42px;border-radius:50%;
  display:grid;place-items:center;
  border:1px solid rgba(255,255,255,.22);
  color:#fff;
  transition:background .22s var(--ease), border-color .22s var(--ease), transform .22s var(--ease);
}
.to-top svg{width:18px;height:18px;}
.to-top:hover{background:var(--brand-500);border-color:var(--brand-500);color:#fff;transform:translateY(-2px);}

/* ---------- 入场动效 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .5s var(--ease), transform .5s var(--ease);}
.reveal.is-in{opacity:1;transform:none;}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .split{grid-template-columns:minmax(0,1fr);}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
}
@media (max-width:1023px){
  .search-pill{display:none;}
  .link-quiet{display:none;}
  .menu-toggle{display:grid;}
  .topbar .btn-primary{display:none;}
  .topbar{min-height:64px;}
}
@media (max-width:767px){
  body{font-size:15.5px;line-height:1.75;}
  .card-grid{grid-template-columns:minmax(0,1fr);gap:18px;}
  .spec-table th,.spec-table td{padding:14px 16px;}
  .step{grid-template-columns:44px minmax(0,1fr);gap:14px;}
  .step-num{width:44px;height:44px;font-size:15px;}
  .step::before{left:21px;top:44px;}
  .cta-inner{flex-direction:column;align-items:flex-start;}
  .cta-inner .btn{width:100%;}
  .footer-grid{grid-template-columns:minmax(0,1fr);gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:520px){
  .hero-meta{gap:8px 16px;}
  .badge{font-size:12.5px;}
  .section-head h2{padding-left:12px;font-size:24px;}
  .card{padding:22px 18px;}
  .faq-item summary{font-size:15.5px;gap:12px;}
  .anchor-pill{font-size:13px;padding:7px 14px;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;transition-duration:.001ms !important;}
  html{scroll-behavior:auto;}
  .reveal{opacity:1;transform:none;}
}

/* roulang page: category3 */
:root{
  --brand-900:#08251C;
  --brand-700:#0E3C2F;
  --brand-500:#1B6B52;
  --accent-500:#FF5A1F;
  --accent-400:#FF7A45;
  --ink-900:#14181B;
  --ink-600:#4A5459;
  --ink-300:#98A2A8;
  --line:#E4E7E5;
  --canvas:#F6F7F5;
  --surface:#FFFFFF;
  --tint:#EAF2EF;
  --success:#1F9D55;
  --warning:#C7860A;
  --danger:#D64545;
  --radius-card:14px;
  --radius-img:10px;
  --radius-pill:999px;
  --shadow-1:0 1px 2px rgba(16,24,20,.04),0 8px 24px -12px rgba(16,24,20,.12);
  --shadow-2:0 2px 6px rgba(16,24,20,.06),0 20px 44px -20px rgba(16,24,20,.24);
  --ease:cubic-bezier(.22,1,.36,1);
  --container:1200px;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--ink-900);
  background:var(--canvas);
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--brand-700);text-decoration:none;transition:color .2s var(--ease);}
a:hover{color:var(--accent-500);}
button,input{font-family:inherit;font-size:inherit;}
ul,ol{margin:0;padding:0;}
h1,h2,h3,h4,p{margin:0;}
:focus-visible{outline:2px solid var(--brand-700);outline-offset:2px;}

.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 clamp(20px,4vw,40px);
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 22px;
  border-radius:var(--radius-pill);
  border:1px solid transparent;
  font-size:15px;font-weight:600;line-height:1;
  cursor:pointer;
  transition:background-color .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),transform .18s var(--ease),box-shadow .2s var(--ease);
}
.btn svg{width:18px;height:18px;flex:0 0 18px;transition:transform .22s var(--ease);}
.btn:hover svg{transform:translateX(2px);}
.btn:active{transform:translateY(1px);}
.btn-primary{background:var(--accent-500);color:#fff;box-shadow:0 10px 22px -14px rgba(255,90,31,.9);}
.btn-primary:hover{background:var(--accent-400);color:#fff;}
.btn-ghost{background:var(--surface);color:var(--ink-900);border-color:var(--line);}
.btn-ghost:hover{border-color:var(--brand-700);color:var(--brand-700);}
.btn-sm{height:40px;padding:0 16px;font-size:14px;}
.btn-block{width:100%;}
.btn[disabled],.btn.is-disabled{opacity:.4;pointer-events:none;}

.link-quiet{
  font-size:14px;color:var(--ink-600);
  position:relative;
}
.link-quiet::after{
  content:"";position:absolute;left:0;bottom:-3px;height:1px;width:0;
  background:var(--accent-500);transition:width .26s var(--ease);
}
.link-quiet:hover{color:var(--brand-700);}
.link-quiet:hover::after{width:100%;}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:var(--surface);
  border-bottom:1px solid var(--line);
  transition:box-shadow .24s var(--ease);
}
.site-header.is-scrolled{box-shadow:var(--shadow-1);}
.topbar{
  display:grid;
  grid-template-columns:auto 1fr auto;
  align-items:center;
  gap:clamp(16px,3vw,36px);
  padding:14px 0;
}
.brand{display:inline-flex;align-items:center;gap:12px;flex-shrink:0;}
.brand-mark{
  width:40px;height:40px;flex:0 0 40px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:12px;
  background:var(--tint);color:var(--brand-700);
}
.brand-mark svg{width:22px;height:22px;}
.brand-text{display:flex;flex-direction:column;line-height:1.2;}
.brand-text b{font-size:17px;font-weight:800;letter-spacing:.01em;color:var(--ink-900);}
.brand-text span{font-size:12.5px;color:var(--ink-600);letter-spacing:.02em;}

.search-pill{
  display:flex;align-items:center;gap:10px;
  height:44px;padding:0 18px;
  background:var(--canvas);
  border:1px solid var(--line);
  border-radius:var(--radius-pill);
  max-width:420px;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease),background-color .2s var(--ease);
}
.search-pill svg{width:18px;height:18px;color:var(--ink-300);flex:0 0 18px;}
.search-pill input{
  flex:1;border:0;background:transparent;outline:none;
  font-size:14px;color:var(--ink-900);
}
.search-pill input::placeholder{color:var(--ink-300);}
.search-pill:focus-within{
  background:var(--surface);
  border-color:var(--brand-700);
  box-shadow:0 0 0 4px rgba(14,60,47,.08);
}
.topbar-actions{display:flex;align-items:center;gap:16px;}
.menu-toggle{
  display:none;
  width:44px;height:44px;align-items:center;justify-content:center;
  border:1px solid var(--line);background:var(--surface);
  border-radius:12px;color:var(--ink-900);cursor:pointer;
  transition:border-color .2s var(--ease),color .2s var(--ease);
}
.menu-toggle:hover{border-color:var(--brand-700);color:var(--brand-700);}
.menu-toggle svg{width:20px;height:20px;}

.channels{
  border-top:1px solid var(--line);
  background:var(--surface);
}
.channels-inner{
  display:flex;gap:10px;
  overflow-x:auto;
  padding:10px 0;
  scrollbar-width:none;
}
.channels-inner::-webkit-scrollbar{display:none;}
.channel{
  flex:0 0 auto;
  padding:8px 18px;
  border-radius:var(--radius-pill);
  border:1px solid var(--line);
  background:var(--surface);
  color:var(--ink-600);
  font-size:14px;font-weight:500;
  white-space:nowrap;
  transition:background-color .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.channel:hover{background:var(--tint);color:var(--brand-700);border-color:var(--tint);}
.channel.is-active{background:var(--brand-700);border-color:var(--brand-700);color:#fff;font-weight:600;}

/* ---------- 移动端抽屉 ---------- */
.drawer{
  position:fixed;inset:0;z-index:80;
  background:rgba(8,37,28,.55);
  opacity:0;visibility:hidden;
  transition:opacity .26s var(--ease),visibility .26s var(--ease);
}
.drawer.is-open{opacity:1;visibility:visible;}
.drawer-panel{
  position:absolute;right:0;top:0;bottom:0;
  width:min(88vw,380px);
  background:var(--surface);
  display:flex;flex-direction:column;
  transform:translateX(100%);
  transition:transform .3s var(--ease);
  padding:20px;
  overflow-y:auto;
}
.drawer.is-open .drawer-panel{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px;}
.drawer-close{
  width:40px;height:40px;border-radius:12px;border:1px solid var(--line);
  background:var(--surface);color:var(--ink-900);cursor:pointer;
  display:inline-flex;align-items:center;justify-content:center;
}
.drawer-close svg{width:18px;height:18px;}
.drawer-nav{display:flex;flex-direction:column;gap:4px;margin-bottom:auto;}
.drawer-nav a{
  padding:14px 12px;border-radius:12px;font-size:15.5px;color:var(--ink-900);font-weight:500;
  display:flex;align-items:center;justify-content:space-between;
  transition:background-color .2s var(--ease),color .2s var(--ease);
}
.drawer-nav a:hover{background:var(--tint);color:var(--brand-700);}
.drawer-nav a.is-active{background:var(--tint);color:var(--brand-700);font-weight:600;}
.drawer-nav a svg{width:16px;height:16px;color:var(--ink-300);}
.drawer-foot{padding-top:20px;display:flex;flex-direction:column;gap:12px;}

/* ---------- 内页首屏 ---------- */
.page-hero{
  position:relative;
  padding:clamp(44px,6vw,84px) 0 clamp(40px,5vw,68px);
  background-color:var(--canvas);
  background-image:linear-gradient(180deg,rgba(246,247,245,.94),rgba(246,247,245,.97)),url("/assets/images/backpic/back-2.png");
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--line);
  overflow:hidden;
}
.page-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(14,60,47,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(14,60,47,.06) 1px,transparent 1px);
  background-size:48px 48px;
  opacity:.5;
}
.page-hero .container{position:relative;z-index:1;}
.crumb{
  display:flex;flex-wrap:wrap;gap:8px;align-items:center;
  font-size:13px;color:var(--ink-300);letter-spacing:.02em;margin-bottom:20px;
}
.crumb a{color:var(--ink-600);}
.crumb a:hover{color:var(--accent-500);}
.crumb span{color:var(--ink-300);}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:var(--radius-pill);
  background:var(--tint);color:var(--brand-700);
  font-size:13px;font-weight:600;letter-spacing:.02em;
  margin-bottom:20px;
}
.page-hero h1{
  font-size:clamp(32px,5.2vw,58px);
  font-weight:800;line-height:1.08;letter-spacing:-.02em;
  max-width:16em;
  margin-bottom:20px;
}
.page-hero h1 em{font-style:normal;color:var(--brand-700);}
.lead{
  max-width:62ch;
  font-size:clamp(16px,1.6vw,18px);
  line-height:1.85;
  color:var(--ink-600);
  margin-bottom:28px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:30px;}
.hero-facts{
  display:flex;flex-wrap:wrap;gap:12px 28px;
  list-style:none;
  border-top:1px solid var(--line);
  padding-top:22px;
}
.hero-facts li{
  display:flex;align-items:center;gap:8px;
  font-size:14px;color:var(--ink-600);
}
.hero-facts svg{width:18px;height:18px;color:var(--brand-500);flex:0 0 18px;}

/* ---------- 锚点条 ---------- */
.anchor-bar{
  background:var(--surface);
  border-bottom:1px solid var(--line);
  position:sticky;top:0;
  z-index:40;
}
.anchor-inner{
  display:flex;gap:10px;overflow-x:auto;
  padding:12px 0;scrollbar-width:none;
}
.anchor-inner::-webkit-scrollbar{display:none;}
.anchor-pill{
  flex:0 0 auto;
  padding:7px 16px;border-radius:var(--radius-pill);
  background:var(--canvas);border:1px solid var(--line);
  color:var(--ink-600);font-size:13.5px;font-weight:500;
  transition:background-color .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.anchor-pill:hover{background:var(--brand-700);border-color:var(--brand-700);color:#fff;}

/* ---------- 通用板块 ---------- */
.section{padding:clamp(56px,7vw,110px) 0;}
.section.is-tight{padding-top:clamp(36px,4vw,64px);}
.section-head{max-width:760px;margin-bottom:clamp(32px,4vw,56px);}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;letter-spacing:.12em;
  color:var(--accent-500);text-transform:uppercase;
  margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--accent-500);border-radius:2px;}
.section-head h2{
  font-size:clamp(24px,3vw,38px);
  font-weight:700;line-height:1.2;letter-spacing:-.01em;
  margin-bottom:16px;
  position:relative;padding-left:16px;
}
.section-head h2::before{
  content:"";position:absolute;left:0;top:.14em;bottom:.14em;width:3px;
  background:var(--brand-700);border-radius:2px;
}
.section-head p{color:var(--ink-600);font-size:16px;line-height:1.85;}

/* ---------- 双栏图文 ---------- */
.split{
  display:grid;
  grid-template-columns:5fr 7fr;
  gap:clamp(26px,4vw,60px);
  align-items:center;
  padding:clamp(26px,3.4vw,46px) 0;
  border-bottom:1px solid var(--line);
}
.split:last-of-type{border-bottom:0;}
.split.is-flip{grid-template-columns:7fr 5fr;}
.split.is-flip .split-media{order:2;}
.split.is-flip .split-body{order:1;}
.media{
  position:relative;
  border-radius:var(--radius-card);
  overflow:hidden;
  border:1px solid var(--line);
  background:linear-gradient(135deg,var(--tint),rgba(27,107,82,.12));
  box-shadow:var(--shadow-1);
  transition:box-shadow .28s var(--ease),transform .28s var(--ease);
}
.media img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform .34s var(--ease);}
.media:hover{box-shadow:var(--shadow-2);transform:translateY(-2px);}
.media:hover img{transform:scale(1.03);}
.media-tag{
  position:absolute;left:14px;bottom:14px;
  padding:6px 14px;border-radius:var(--radius-pill);
  background:rgba(255,255,255,.92);
  color:var(--brand-700);font-size:12.5px;font-weight:600;letter-spacing:.02em;
  backdrop-filter:blur(4px);
}
.split-body .index{
  display:inline-flex;align-items:baseline;gap:10px;
  font-size:13px;font-weight:700;letter-spacing:.14em;
  color:var(--accent-500);margin-bottom:14px;
}
.split-body .index b{font-size:26px;font-weight:800;line-height:1;letter-spacing:-.02em;}
.split-body h3{
  font-size:clamp(20px,2.2vw,26px);
  font-weight:700;line-height:1.35;
  margin-bottom:14px;
}
.split-body p{color:var(--ink-600);font-size:16px;line-height:1.85;margin-bottom:16px;}
.mini-list{list-style:none;display:grid;gap:10px;}
.mini-list li{
  display:flex;gap:10px;align-items:flex-start;
  font-size:14.5px;color:var(--ink-600);line-height:1.75;
  padding:10px 14px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:10px;
}
.mini-list li strong{color:var(--ink-900);font-weight:600;}
.dot{
  flex:0 0 6px;width:6px;height:6px;border-radius:50%;
  background:var(--brand-500);margin-top:10px;
}

/* ---------- 安全要点清单 ---------- */
.check-panel{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:20px;
  padding:clamp(24px,3.4vw,44px);
  box-shadow:var(--shadow-1);
}
.check-list{list-style:none;display:grid;gap:12px;margin-top:6px;}
.check-list li{
  display:flex;gap:14px;align-items:flex-start;
  padding:14px 16px;
  border:1px solid var(--line);
  border-radius:12px;
  background:var(--canvas);
  transition:background-color .22s var(--ease),border-color .22s var(--ease),transform .22s var(--ease);
}
.check-list li:hover{background:var(--tint);border-color:rgba(27,107,82,.24);transform:translateY(-2px);}
.check-list svg{width:20px;height:20px;flex:0 0 20px;color:var(--brand-500);margin-top:3px;}
.check-list span{font-size:15px;color:var(--ink-600);line-height:1.75;}
.check-list span b{color:var(--ink-900);font-weight:600;}

/* ---------- 警示块 ---------- */
.alert-warn{
  display:flex;gap:16px;align-items:flex-start;
  margin-top:clamp(24px,3vw,36px);
  padding:20px 22px;
  border-radius:12px;
  background:rgba(199,134,10,.07);
  border:1px solid rgba(199,134,10,.22);
  border-left:3px solid var(--warning);
}
.alert-warn svg{width:22px;height:22px;flex:0 0 22px;color:var(--warning);margin-top:3px;}
.alert-warn h3{font-size:16px;font-weight:700;margin-bottom:6px;}
.alert-warn p{font-size:14.5px;color:var(--ink-600);line-height:1.8;}

/* ---------- FAQ ---------- */
.faq-list{border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item summary{
  list-style:none;
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:22px 0;
  font-size:16.5px;font-weight:600;color:var(--ink-900);
  cursor:pointer;
  transition:color .2s var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--brand-700);}
.faq-ico{
  flex:0 0 28px;width:28px;height:28px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--tint);color:var(--brand-700);
  transition:transform .24s var(--ease),background-color .24s var(--ease);
}
.faq-ico svg{width:14px;height:14px;}
.faq-item[open] .faq-ico{transform:rotate(180deg);background:var(--brand-700);color:#fff;}
.faq-body{padding:0 0 22px;max-width:78ch;font-size:15px;line-height:1.85;color:var(--ink-600);}
.faq-body p+p{margin-top:10px;}

/* ---------- 深色 CTA ---------- */
.cta-dark{
  position:relative;
  border-radius:22px;
  background:var(--brand-900);
  color:#fff;
  padding:clamp(28px,4.4vw,60px);
  overflow:hidden;
  display:grid;
  grid-template-columns:1.35fr .9fr;
  gap:clamp(24px,3.6vw,54px);
  align-items:center;
}
.cta-dark::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.07) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.07) 1px,transparent 1px);
  background-size:44px 44px;
  opacity:.7;
}
.cta-dark>*{position:relative;z-index:1;}
.cta-dark h2{
  font-size:clamp(23px,2.8vw,34px);
  font-weight:700;line-height:1.25;letter-spacing:-.01em;
  margin-bottom:14px;
}
.cta-dark p{color:rgba(255,255,255,.76);font-size:15.5px;line-height:1.85;max-width:52ch;}
.cta-actions{display:flex;flex-direction:column;gap:12px;}
.cta-actions .btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.28);}
.cta-actions .btn-ghost:hover{background:rgba(255,255,255,.1);border-color:#fff;color:#fff;}
.cta-note{font-size:13px;color:rgba(255,255,255,.55);text-align:center;}

/* ---------- 页脚前窄条 ---------- */
.cta-strip{
  background:var(--brand-900);
  color:#fff;
  position:relative;
  overflow:hidden;
}
.cta-strip::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.06) 1px,transparent 1px);
  background-size:40px 40px;
}
.cta-strip-inner{
  position:relative;z-index:1;
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:clamp(24px,3vw,38px) 0;
  flex-wrap:wrap;
}
.cta-strip h2{font-size:clamp(19px,2.2vw,26px);font-weight:700;line-height:1.3;letter-spacing:-.01em;}
.cta-strip span{display:block;font-size:14px;color:rgba(255,255,255,.68);margin-top:6px;}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--brand-900);
  color:#fff;
  position:relative;
  overflow:hidden;
  padding-top:clamp(44px,5vw,76px);
}
.site-footer::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:44px 44px;
}
.site-footer .container{position:relative;z-index:1;}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1fr;
  gap:clamp(24px,3.4vw,48px);
  padding-bottom:clamp(32px,4vw,52px);
}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:18px;}
.site-footer .brand-mark{background:rgba(255,255,255,.1);color:#fff;}
.site-footer .brand-text b{color:#fff;}
.site-footer .brand-text span{color:rgba(255,255,255,.62);}
.footer-about{
  font-size:14px;line-height:1.85;color:rgba(255,255,255,.66);max-width:38ch;
}
.footer-col h3{
  font-size:14px;font-weight:700;letter-spacing:.04em;
  color:#8FD3B8;margin-bottom:16px;
}
.footer-col ul{list-style:none;display:grid;gap:10px;}
.footer-col a{
  font-size:14px;color:rgba(255,255,255,.68);
  transition:color .2s var(--ease);
}
.footer-col a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px;}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap;
  padding:22px 0 30px;
  border-top:1px solid rgba(255,255,255,.12);
  font-size:13.5px;color:rgba(255,255,255,.56);
}
.footer-bottom-links{display:flex;gap:18px;flex-wrap:wrap;}
.footer-bottom-links a{color:rgba(255,255,255,.68);font-size:13.5px;}
.footer-bottom-links a:hover{color:#fff;}
.to-top{
  width:42px;height:42px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  background:rgba(255,255,255,.1);color:#fff;
  transition:background-color .22s var(--ease),transform .22s var(--ease);
}
.to-top:hover{background:var(--brand-500);color:#fff;transform:translateY(-2px);}
.to-top svg{width:18px;height:18px;}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .5s var(--ease),transform .5s var(--ease);}
.reveal.is-in{opacity:1;transform:none;}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .topbar{grid-template-columns:auto 1fr auto;gap:20px;}
  .search-pill{max-width:320px;}
}

@media (max-width:1023px){
  .search-pill{display:none;}
  .menu-toggle{display:inline-flex;}
  .link-quiet{display:none;}
  .split,.split.is-flip{grid-template-columns:1fr;gap:24px;}
  .split.is-flip .split-media{order:1;}
  .split.is-flip .split-body{order:2;}
  .split-media{max-width:620px;}
  .cta-dark{grid-template-columns:1fr;}
  .cta-actions{flex-direction:row;flex-wrap:wrap;}
  .cta-note{text-align:left;}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .anchor-bar{position:static;}
}

@media (max-width:767px){
  body{font-size:15.5px;line-height:1.75;}
  .topbar{padding:12px 0;}
  .brand-mark{width:36px;height:36px;flex-basis:36px;}
  .brand-text b{font-size:15.5px;}
  .brand-text span{font-size:12px;}
  .page-hero{padding:32px 0 36px;}
  .page-hero h1{font-size:clamp(27px,7.4vw,36px);}
  .lead{font-size:15.5px;}
  .hero-actions .btn{width:100%;}
  .hero-facts{flex-direction:column;gap:10px;}
  .section{padding:44px 0;}
  .section-head h2{font-size:22px;padding-left:12px;}
  .split-body h3{font-size:19px;}
  .cta-dark{padding:26px 20px;border-radius:18px;}
  .cta-actions{flex-direction:column;}
  .cta-actions .btn{width:100%;}
  .cta-strip-inner{flex-direction:column;align-items:flex-start;}
  .cta-strip-inner .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .faq-item summary{font-size:15.5px;padding:18px 0;}
}

@media (max-width:520px){
  .container{padding:0 18px;}
  .channels-inner{padding:8px 0;}
  .channel{font-size:13.5px;padding:7px 14px;}
  .check-list li{padding:12px 14px;}
  .alert-warn{padding:16px;}
  .media img{aspect-ratio:16/11;}
}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  *{animation-duration:.01ms !important;transition-duration:.01ms !important;}
  .reveal{opacity:1;transform:none;}
  .btn:hover svg{transform:none;}
  .media:hover{transform:none;}
  .media:hover img{transform:none;}
}

/* roulang page: category4 */
/* ============ 设计变量 ============ */
:root{
  --brand-900:#08251C;
  --brand-700:#0E3C2F;
  --brand-500:#1B6B52;
  --accent-500:#FF5A1F;
  --accent-400:#FF7A45;
  --ink-900:#14181B;
  --ink-600:#4A5459;
  --ink-300:#98A2A8;
  --line:#E4E7E5;
  --canvas:#F6F7F5;
  --surface:#FFFFFF;
  --tint:#EAF2EF;
  --success:#1F9D55;
  --warning:#C7860A;
  --danger:#D64545;
  --r-card:14px;
  --r-img:10px;
  --r-btn:999px;
  --r-input:10px;
  --shadow-1:0 1px 2px rgba(16,24,20,.04), 0 8px 24px -12px rgba(16,24,20,.12);
  --shadow-2:0 2px 6px rgba(16,24,20,.06), 0 20px 44px -20px rgba(16,24,20,.24);
  --ease:cubic-bezier(0.22,1,0.36,1);
  --font:-apple-system,BlinkMacSystemFont,"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",sans-serif;
}

/* ============ 基础 reset ============ */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  color:var(--ink-900);
  background:var(--canvas);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0}
a{color:var(--brand-700);text-decoration:none;transition:color .2s var(--ease)}
a:hover{color:var(--accent-500)}
button,input,textarea,select{font:inherit;color:inherit;margin:0}
button{background:none;border:0;cursor:pointer}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
strong,b{font-weight:700}
:focus-visible{outline:2px solid var(--brand-700);outline-offset:2px;border-radius:6px}
::selection{background:rgba(255,90,31,.18)}

/* ============ 容器 ============ */
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 clamp(20px,4vw,40px)}

/* ============ 头部与导航 ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  background:var(--surface);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s var(--ease);
}
.site-header.is-scrolled{box-shadow:var(--shadow-1)}
.topbar{
  display:flex;align-items:center;gap:24px;
  padding:14px 0;max-height:120px;overflow:hidden;
  transition:max-height .3s var(--ease),padding .3s var(--ease),opacity .2s var(--ease);
}
.site-header.is-compact .topbar{max-height:0;padding-top:0;padding-bottom:0;opacity:0}

.brand{display:flex;align-items:center;gap:12px;color:var(--ink-900);flex:0 0 auto}
.brand:hover{color:var(--ink-900)}
.brand-mark{
  width:42px;height:42px;flex:0 0 auto;border-radius:12px;
  background:linear-gradient(140deg,var(--brand-700),var(--brand-500));
  color:#fff;display:grid;place-items:center;
}
.brand-mark svg{width:22px;height:22px}
.brand-text{display:flex;flex-direction:column;line-height:1.18;font-size:12.5px;letter-spacing:.02em;color:var(--ink-600)}
.brand-text b{font-size:17px;font-weight:800;color:var(--ink-900);letter-spacing:-.01em}

.search-pill{
  flex:1 1 auto;max-width:420px;display:flex;align-items:center;gap:10px;
  height:44px;padding:0 16px;background:var(--canvas);
  border:1px solid var(--line);border-radius:var(--r-btn);
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease),background-color .2s;
}
.search-pill svg{width:18px;height:18px;color:var(--ink-300);flex:0 0 auto}
.search-pill input{flex:1 1 auto;min-width:0;border:0;background:transparent;outline:none;font-size:14px;line-height:1.4}
.search-pill input::placeholder{color:var(--ink-300)}
.search-pill:focus-within{border-color:var(--brand-700);background:#fff;box-shadow:0 0 0 4px rgba(14,60,47,.08)}

.topbar-actions{display:flex;align-items:center;gap:16px;margin-left:auto;flex:0 0 auto}
.link-quiet{font-size:14px;color:var(--ink-600)}
.link-quiet:hover{color:var(--brand-700)}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;border:1px solid transparent;
  cursor:pointer;white-space:nowrap;
  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 svg{width:17px;height:17px;flex:0 0 auto;transition:transform .22s var(--ease)}
.btn:hover svg{transform:translateX(2px)}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--accent-500);color:#fff;box-shadow:0 10px 22px -14px rgba(255,90,31,.95)}
.btn-primary:hover{background:var(--accent-400);color:#fff}
.btn-ghost{background:var(--surface);color:var(--ink-900);border-color:var(--line)}
.btn-ghost:hover{border-color:var(--brand-700);color:var(--brand-700)}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn-block{width:100%}
.btn[disabled],.btn.is-disabled{opacity:.4;cursor:not-allowed}

.menu-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  border:1px solid var(--line);background:#fff;color:var(--ink-900);
  align-items:center;justify-content:center;
}
.menu-toggle svg{width:20px;height:20px}
.menu-toggle:hover{border-color:var(--brand-700);color:var(--brand-700)}

.channels{border-top:1px solid var(--line)}
.channels-inner{
  display:flex;align-items:center;gap:8px;height:56px;
  overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;
}
.channels-inner::-webkit-scrollbar{display:none}
.channel{
  flex:0 0 auto;padding:8px 18px;border-radius:var(--r-btn);
  border:1px solid var(--line);background:var(--surface);
  font-size:14.5px;font-weight:600;color:var(--ink-600);
  transition:background-color .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.channel:hover{background:var(--tint);color:var(--brand-700);border-color:rgba(14,60,47,.22)}
.channel.is-active{background:var(--brand-700);border-color:var(--brand-700);color:#fff}
.channel.is-active:hover{background:var(--brand-700);color:#fff}

/* 移动端抽屉 */
.drawer{
  display:none;position:fixed;inset:0;z-index:95;
  background:var(--surface);flex-direction:column;
  padding:20px clamp(20px,5vw,32px) 28px;overflow-y:auto;
}
.drawer.is-open{display:flex}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:22px}
.drawer-close{
  width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  display:grid;place-items:center;color:var(--ink-900);
}
.drawer-close:hover{border-color:var(--brand-700);color:var(--brand-700)}
.drawer-close svg{width:20px;height:20px}
.drawer-links{display:flex;flex-direction:column;margin-bottom:24px}
.drawer-links a{padding:16px 2px;border-bottom:1px solid var(--line);font-size:17px;font-weight:600;color:var(--ink-900)}
.drawer-links a.is-active{color:var(--brand-700)}
.drawer-cta{margin-top:auto}

/* ============ Hero ============ */
.hero{
  position:relative;overflow:hidden;color:#fff;
  background:var(--brand-900) url('/assets/images/backpic/back-1.png') center/cover no-repeat;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(105deg,rgba(8,37,28,.95) 0%,rgba(8,37,28,.88) 46%,rgba(8,37,28,.62) 100%);
}
.hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.5;
  background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:56px 56px;
}
.hero-inner{
  position:relative;z-index:2;
  display:grid;grid-template-columns:minmax(0,1.12fr) minmax(0,.88fr);
  gap:clamp(28px,4vw,56px);align-items:center;
  padding:clamp(52px,7vw,96px) 0 clamp(48px,6vw,84px);
}
.badge-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:22px}
.badge{
  display:inline-flex;align-items:center;gap:6px;padding:6px 14px;
  border-radius:var(--r-btn);font-size:13px;letter-spacing:.02em;
  background:var(--tint);color:var(--brand-700);font-weight:600;
}
.hero .badge{background:rgba(255,255,255,.12);color:#DCEBE4;border:1px solid rgba(255,255,255,.16)}
.hero h1{
  font-size:clamp(32px,4.7vw,54px);font-weight:800;line-height:1.1;
  letter-spacing:-.02em;max-width:20ch;
}
.hero-lead{margin-top:20px;font-size:clamp(16px,1.4vw,17.5px);line-height:1.8;color:rgba(255,255,255,.82);max-width:46ch}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.hero .btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.34)}
.hero .btn-ghost:hover{background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.7);color:#fff}
.anchor-pills{display:flex;flex-wrap:wrap;gap:10px;margin-top:30px}
.anchor-pill{
  font-size:13.5px;padding:8px 16px;border-radius:var(--r-btn);
  border:1px solid rgba(255,255,255,.28);color:#DCEBE4;
  transition:background-color .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.anchor-pill:hover{background:rgba(255,255,255,.13);color:#fff;border-color:rgba(255,255,255,.55)}

.hero-side{
  background:rgba(255,255,255,.97);color:var(--ink-900);
  border-radius:var(--r-card);padding:clamp(22px,2.6vw,30px);
  box-shadow:var(--shadow-2);
}
.hero-side h2{font-size:19px;font-weight:700;letter-spacing:-.01em}
.hero-side p{margin-top:8px;font-size:14px;line-height:1.75;color:var(--ink-600)}
.hint-search{display:flex;gap:10px;margin:18px 0 14px}
.hint-search input{
  flex:1 1 auto;min-width:0;height:46px;padding:0 14px;
  border:1px solid var(--line);border-radius:var(--r-input);
  background:var(--canvas);outline:none;font-size:14px;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease),background-color .2s;
}
.hint-search input::placeholder{color:var(--ink-300)}
.hint-search input:focus{border-color:var(--brand-700);background:#fff;box-shadow:0 0 0 4px rgba(14,60,47,.08)}
.hint-tags{display:flex;flex-wrap:wrap;gap:8px}
.hint-tag{
  font-size:13px;padding:6px 12px;border-radius:var(--r-btn);
  background:var(--tint);color:var(--brand-700);font-weight:600;
  border:1px solid transparent;transition:background-color .2s var(--ease),border-color .2s var(--ease);
}
.hint-tag:hover{background:#DDEAE4;border-color:rgba(14,60,47,.22)}
.hint-note{
  display:none;margin-top:16px;padding:12px 14px;font-size:13.5px;line-height:1.7;
  color:var(--ink-600);background:var(--canvas);
  border-left:3px solid var(--brand-500);border-radius:0 8px 8px 0;
}
.hint-note.is-visible{display:block}

/* ============ 板块通用 ============ */
.section{padding:clamp(56px,7vw,104px) 0}
.section--tight{padding-top:0}
.section-head{max-width:820px;margin-bottom:clamp(30px,4vw,52px)}
.section-head h2{
  font-size:clamp(24px,3vw,38px);font-weight:700;line-height:1.22;
  letter-spacing:-.01em;padding-left:16px;border-left:3px solid var(--brand-500);
}
.section-head p{margin-top:14px;padding-left:19px;font-size:16px;color:var(--ink-600)}

/* 锚点目录 */
.anchor-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.anchor-card{
  display:block;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-card);padding:26px 24px 24px;color:var(--ink-900);
  box-shadow:var(--shadow-1);
  transition:transform .25s var(--ease),border-color .25s var(--ease),box-shadow .25s var(--ease);
}
.anchor-card:hover{transform:translateY(-2px);border-color:rgba(14,60,47,.3);box-shadow:var(--shadow-2);color:var(--ink-900)}
.anchor-num{font-size:14px;font-weight:800;color:var(--accent-500);letter-spacing:.06em;font-variant-numeric:tabular-nums}
.anchor-card h3{margin:12px 0 8px;font-size:19px;font-weight:700;line-height:1.35}
.anchor-card p{font-size:14px;line-height:1.7;color:var(--ink-600)}
.anchor-meta{display:inline-flex;align-items:center;gap:6px;margin-top:16px;font-size:13px;color:var(--ink-300)}
.anchor-meta svg{width:15px;height:15px}

/* 求助前准备 */
.prep{
  display:grid;grid-template-columns:minmax(0,.92fr) minmax(0,1.08fr);gap:clamp(24px,3.4vw,44px);
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:clamp(24px,3vw,38px);box-shadow:var(--shadow-1);
}
.prep h3{font-size:clamp(20px,2.2vw,24px);font-weight:700;line-height:1.35}
.prep > div > p{margin-top:12px;font-size:15px;color:var(--ink-600)}
.prep-list{display:grid}
.prep-item{
  display:flex;gap:14px;align-items:flex-start;
  padding:14px 0;border-top:1px solid var(--line);font-size:15px;color:var(--ink-600);
}
.prep-item:first-child{border-top:0;padding-top:0}
.prep-item .num{
  flex:0 0 auto;width:24px;height:24px;margin-top:4px;border-radius:50%;
  background:var(--tint);color:var(--brand-700);
  font-size:12.5px;font-weight:700;display:grid;place-items:center;
  font-variant-numeric:tabular-nums;
}
.prep-item b{color:var(--ink-900);font-weight:600}
.notice{
  margin-top:22px;padding:14px 16px;font-size:14px;line-height:1.75;color:var(--ink-600);
  border-left:3px solid var(--warning);border-radius:0 10px 10px 0;
  background:rgba(199,134,10,.08);
}
.notice b{color:var(--ink-900)}

/* FAQ */
.faq-group{padding-top:clamp(32px,4vw,52px);scroll-margin-top:104px}
.faq-group:first-of-type{padding-top:0}
.faq-group-head{display:flex;align-items:baseline;gap:14px;flex-wrap:wrap}
.faq-group-head h2{
  font-size:clamp(20px,2.4vw,26px);font-weight:700;line-height:1.3;
  padding-left:14px;border-left:3px solid var(--brand-500);
}
.faq-group-head span{font-size:13px;color:var(--ink-300);letter-spacing:.02em}
.faq-group-lead{margin:12px 0 20px;padding-left:17px;font-size:15px;color:var(--ink-600);max-width:70ch}

.faq{border-top:1px solid var(--line);max-width:920px}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 4px;font-size:16.5px;font-weight:600;line-height:1.5;
  cursor:pointer;list-style:none;transition:color .2s var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--brand-700)}
.faq-item summary .chev{width:18px;height:18px;flex:0 0 auto;color:var(--ink-300);transition:transform .24s var(--ease),color .2s var(--ease)}
.faq-item[open] summary{color:var(--brand-700)}
.faq-item[open] summary .chev{transform:rotate(180deg);color:var(--brand-500)}
.faq-answer{padding:0 4px 22px;font-size:15px;line-height:1.82;color:var(--ink-600);max-width:78ch}
.faq-answer p + p{margin-top:10px}
.answer-steps{display:grid;gap:8px;margin-top:12px}
.answer-steps li{display:flex;gap:10px;align-items:flex-start}
.answer-steps .n{
  flex:0 0 auto;width:22px;height:22px;margin-top:4px;border-radius:50%;
  background:var(--tint);color:var(--brand-700);font-size:12px;font-weight:700;
  display:grid;place-items:center;font-variant-numeric:tabular-nums;
}

/* 继续查阅卡片 */
.entry-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.card{
  display:flex;flex-direction:column;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;
  box-shadow:var(--shadow-1);color:var(--ink-900);
  transition:transform .25s var(--ease),border-color .25s var(--ease),box-shadow .25s var(--ease);
}
.card:hover{transform:translateY(-2px);border-color:rgba(14,60,47,.3);box-shadow:var(--shadow-2);color:var(--ink-900)}
.card-media{
  position:relative;aspect-ratio:16/9;overflow:hidden;
  background:var(--tint);
  background-image:linear-gradient(135deg,rgba(27,107,82,.16),rgba(27,107,82,.02));
}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .32s var(--ease)}
.card:hover .card-media img{transform:scale(1.03)}
.card-body{display:flex;flex-direction:column;gap:10px;flex:1;padding:20px 22px 24px}
.tag{
  align-self:flex-start;font-size:13px;font-weight:600;padding:5px 12px;
  border-radius:var(--r-btn);background:var(--tint);color:var(--brand-700);
}
.card-body h3{font-size:19px;font-weight:700;line-height:1.35}
.card-body p{font-size:14.5px;line-height:1.72;color:var(--ink-600)}
.card-more{
  display:inline-flex;align-items:center;gap:6px;margin-top:auto;padding-top:6px;
  font-size:14px;font-weight:600;color:var(--brand-700);
}
.card-more svg{width:16px;height:16px;transition:transform .22s var(--ease)}
.card:hover .card-more svg{transform:translateX(2px)}

/* 底部转化区 */
.cta-band{position:relative;overflow:hidden;background:var(--brand-900);color:#fff}
.cta-band::before{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.55;
  background-image:linear-gradient(rgba(255,255,255,.055) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.055) 1px,transparent 1px);
  background-size:48px 48px;
}
.cta-inner{
  position:relative;z-index:2;display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);
  gap:clamp(28px,4vw,52px);align-items:center;padding:clamp(56px,7vw,92px) 0;
}
.cta-inner h2{font-size:clamp(24px,3vw,34px);font-weight:700;line-height:1.26;letter-spacing:-.01em}
.cta-inner > div > p{margin-top:14px;font-size:16px;color:rgba(255,255,255,.78);max-width:46ch}
.cta-points{display:grid;gap:12px;margin-top:26px}
.cta-points li{display:flex;gap:10px;align-items:flex-start;font-size:15px;color:rgba(255,255,255,.86)}
.cta-points svg{width:18px;height:18px;flex:0 0 auto;margin-top:4px;color:#8AD9B8}

.form-card{
  background:var(--surface);color:var(--ink-900);border-radius:var(--r-card);
  padding:clamp(22px,3vw,32px);box-shadow:var(--shadow-2);
}
.form-card h3{font-size:20px;font-weight:700;margin-bottom:6px}
.form-card > p{font-size:14px;color:var(--ink-600);margin-bottom:20px}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.field{display:flex;flex-direction:column;gap:8px}
.field.full{grid-column:1/-1}
.field label{font-size:14px;font-weight:600;color:var(--ink-900)}
.field input,.field select,.field textarea{
  width:100%;height:46px;padding:0 14px;font-size:14.5px;
  border:1px solid var(--line);border-radius:var(--r-input);
  background:var(--canvas);outline:none;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease),background-color .2s var(--ease);
}
.field textarea{height:auto;min-height:112px;padding:12px 14px;line-height:1.72;resize:vertical}
.field input::placeholder,.field textarea::placeholder{color:var(--ink-300)}
.field input:focus,.field select:focus,.field textarea:focus{
  border-color:var(--brand-700);background:#fff;box-shadow:0 0 0 4px rgba(14,60,47,.08);
}
.form-note{font-size:13px;line-height:1.7;color:var(--ink-300);margin-top:12px}
.form-success{
  display:none;margin-top:16px;padding:12px 14px;font-size:14px;line-height:1.7;
  color:var(--ink-900);background:rgba(31,157,85,.08);
  border-left:3px solid var(--success);border-radius:0 8px 8px 0;
}
.form-success.is-visible{display:block}

/* ============ 页脚 ============ */
.site-footer{position:relative;overflow:hidden;background:var(--brand-900);color:rgba(255,255,255,.72)}
.site-footer::before{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.5;
  background-image:linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);
  background-size:52px 52px;
}
.footer-grid{
  position:relative;z-index:2;display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;
  padding:clamp(48px,6vw,76px) 0 40px;
}
.footer-brand{display:flex;align-items:center;gap:12px;color:#fff}
.footer-brand .brand-text b{color:#fff}
.footer-brand .brand-text span{color:rgba(255,255,255,.7)}
.footer-about{margin-top:16px;font-size:14px;line-height:1.8;color:rgba(255,255,255,.66);max-width:38ch}
.footer-col h3{font-size:14px;font-weight:700;letter-spacing:.02em;color:#8AD9B8;margin-bottom:16px}
.footer-col ul{display:grid;gap:12px}
.footer-col a{font-size:14px;color:rgba(255,255,255,.72)}
.footer-col a:hover{color:#fff;text-decoration:underline}
.footer-bottom{
  position:relative;z-index:2;display:flex;align-items:center;gap:20px;flex-wrap:wrap;
  padding:20px 0 30px;border-top:1px solid rgba(255,255,255,.12);
  font-size:13.5px;color:rgba(255,255,255,.6);
}
.footer-bottom-links{display:flex;gap:18px}
.footer-bottom-links a{color:rgba(255,255,255,.6);font-size:13.5px}
.footer-bottom-links a:hover{color:#fff}
.to-top{
  margin-left:auto;width:44px;height:44px;border-radius:50%;
  display:grid;place-items:center;color:#fff;
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.14);
  transition:background-color .22s var(--ease),border-color .22s var(--ease);
}
.to-top:hover{background:var(--brand-500);border-color:var(--brand-500);color:#fff}
.to-top svg{width:18px;height:18px}

/* ============ 滚动淡入 ============ */
html.js .reveal{opacity:0;transform:translateY(12px)}
html.js .reveal.is-visible{
  opacity:1;transform:none;
  transition:opacity .58s var(--ease),transform .58s var(--ease);
}

/* ============ 断点 ============ */
@media (max-width:1199px){
  .anchor-grid{grid-template-columns:repeat(2,1fr)}
  .hero h1{max-width:24ch}
}
@media (max-width:1023px){
  .search-pill{display:none}
  .link-quiet{display:none}
  .menu-toggle{display:inline-flex}
  .topbar{gap:16px}
  .hero-inner{grid-template-columns:1fr;align-items:start}
  .hero h1{max-width:26ch}
  .prep{grid-template-columns:1fr}
  .cta-inner{grid-template-columns:1fr}
  .entry-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  body{font-size:15.5px;line-height:1.75}
  .hero-inner{padding-top:44px;padding-bottom:48px}
  .hero h1{font-size:clamp(28px,8vw,36px);max-width:none}
  .hero-lead{font-size:15.5px}
  .hero-actions .btn{width:100%}
  .anchor-grid{grid-template-columns:1fr}
  .entry-grid{grid-template-columns:1fr}
  .form-grid{grid-template-columns:1fr}
  .form-card .btn{width:100%}
  .faq-item summary{font-size:16px;padding:18px 2px}
  .faq-answer{padding-bottom:20px}
  .section-head h2{font-size:24px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom-links{width:100%;order:3}
}
@media (max-width:519px){
  .topbar-actions .btn-primary{display:none}
  .channels-inner{height:52px}
  .channel{padding:7px 14px;font-size:14px}
  .hint-search{flex-direction:column}
  .hint-search .btn{width:100%}
  .badge{font-size:12.5px;padding:5px 12px}
  .anchor-pills{gap:8px}
  .anchor-pill{font-size:13px;padding:7px 13px}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  html.js .reveal,html.js .reveal.is-visible{opacity:1;transform:none;transition:none}
  .btn,.card,.anchor-card,.card-media img,.to-top,.channel{transition:none}
  .btn:hover svg,.card:hover .card-more svg{transform:none}
  .card:hover,.anchor-card:hover{transform:none}
}