/* roulang page: index */
:root{
  --ink:#163B36;
  --ink-2:#0F2B28;
  --copper:#A66A3F;
  --copper-dark:#8C5631;
  --cinnabar:#C24C3D;
  --paper:#F7F2E8;
  --paper-2:#EFE8DA;
  --card:#FFFDF8;
  --text:#1E2522;
  --muted:#5E6660;
  --faint:#8A8F88;
  --line:#DDD3C3;
  --footer:#102A2A;
  --footer-text:#C8C0B2;
  --ok:#3F7A5E;
  --warn:#B98332;
  --err:#B8453A;
  --radius-lg:16px;
  --radius-md:12px;
  --radius-sm:8px;
  --shadow:0 10px 30px rgba(22,59,54,.08);
  --shadow-sm:0 4px 14px rgba(22,59,54,.06);
  --font-serif:"Source Han Serif SC","Noto Serif SC","Songti SC","SimSun",serif;
  --font-sans:"PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
  --maxw:1200px;
  --header-h:72px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto}
a{color:var(--ink);text-decoration:none;transition:color .2s ease,background-color .2s ease,border-color .2s ease}
a:hover{color:var(--copper)}
ul,ol{margin:0;padding:0;list-style:none}
p{margin:0}
h1,h2,h3,h4{margin:0;font-family:var(--font-serif);color:var(--ink);line-height:1.28;letter-spacing:.02em;font-weight:700}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
input,select,textarea{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--cinnabar);outline-offset:2px;border-radius:6px}
::selection{background:rgba(166,106,63,.24)}
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px}
.skip-link{
  position:absolute;left:-9999px;top:0;z-index:999;
  background:var(--ink);color:var(--card);padding:10px 18px;border-radius:0 0 8px 0;font-size:14px;
}
.skip-link:focus{left:0;color:var(--card)}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:var(--radius-sm);
  font-size:15px;font-weight:600;line-height:1.4;letter-spacing:.02em;
  border:1px solid transparent;cursor:pointer;
  transition:transform .18s ease,background-color .2s ease,border-color .2s ease,color .2s ease,box-shadow .2s ease;
}
.btn-primary{background:var(--copper);color:var(--card);box-shadow:0 6px 16px rgba(166,106,63,.22)}
.btn-primary:hover{background:var(--copper-dark);color:var(--card);transform:translateY(-1px)}
.btn-primary:active{transform:translateY(1px);box-shadow:none}
.btn-ghost{background:transparent;border-color:var(--ink);color:var(--ink)}
.btn-ghost:hover{background:var(--paper-2);border-color:var(--copper);color:var(--copper-dark)}
.btn-light{background:var(--card);color:var(--ink);border-color:var(--card)}
.btn-light:hover{background:var(--paper-2);color:var(--ink);transform:translateY(-1px)}
.btn-sm{padding:9px 16px;font-size:14px}
.btn-block{width:100%}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;transform:none}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:120;
  background:var(--card);border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:0 6px 20px rgba(22,59,54,.09)}
.header-inner{display:flex;align-items:center;gap:20px;height:var(--header-h)}
.brand{display:flex;align-items:center;gap:10px;flex:none}
.brand-mark{
  width:38px;height:38px;border-radius:11px;flex:none;
  display:grid;place-items:center;background:var(--ink);color:var(--paper);
  box-shadow:inset 0 0 0 1px rgba(247,242,232,.18);
}
.brand-text{font-family:var(--font-serif);font-size:19px;font-weight:700;color:var(--ink);letter-spacing:.04em;white-space:nowrap}
.main-nav{display:flex;align-items:center;gap:2px;margin-left:auto}
.nav-link{
  position:relative;display:inline-block;
  padding:9px 12px;border-radius:8px;
  font-size:15px;color:var(--muted);white-space:nowrap;
}
.nav-link:hover{color:var(--ink);background:var(--paper-2)}
.nav-link.is-active{color:var(--ink);font-weight:600;background:transparent}
.nav-link.is-active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;
  background:var(--copper);border-radius:2px;
}
.header-tools{display:flex;align-items:center;gap:10px;flex:none}
.search{
  display:flex;align-items:center;
  background:var(--paper);border:1px solid var(--line);border-radius:999px;
  padding:0 6px 0 16px;height:40px;width:232px;
  transition:border-color .2s ease,box-shadow .2s ease,background-color .2s ease;
}
.search:focus-within{border-color:var(--copper);box-shadow:0 0 0 3px rgba(194,76,61,.16);background:var(--card)}
.search-input{
  flex:1;min-width:0;border:0;background:transparent;outline:none;
  font-size:14px;color:var(--text);padding:0;
}
.search-input::placeholder{color:var(--faint)}
.search-btn{
  display:grid;place-items:center;width:32px;height:32px;border-radius:999px;
  color:var(--muted);transition:background-color .2s ease,color .2s ease;
}
.search-btn:hover{background:var(--paper-2);color:var(--copper-dark)}
.menu-toggle{
  display:none;align-items:center;justify-content:center;
  width:42px;height:42px;border-radius:10px;
  border:1px solid var(--line);color:var(--ink);background:var(--card);
}
.menu-toggle:hover{background:var(--paper-2)}
.menu-toggle .bar{display:block;width:18px;height:2px;background:currentColor;border-radius:2px;position:relative}
.menu-toggle .bar::before,.menu-toggle .bar::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:currentColor;border-radius:2px;
}
.menu-toggle .bar::before{top:-6px}
.menu-toggle .bar::after{top:6px}

/* ============ Hero ============ */
.hero{
  position:relative;overflow:hidden;color:var(--card);
  background-image:url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
}
.hero::before{
  content:"";position:absolute;inset:0;z-index:1;
  background:linear-gradient(112deg,rgba(15,43,40,.94) 0%,rgba(22,59,54,.86) 48%,rgba(22,59,54,.72) 100%);
}
.hero::after{
  content:"";position:absolute;inset:0;z-index:1;pointer-events:none;opacity:.55;
  background-image:repeating-linear-gradient(135deg,rgba(247,242,232,.07) 0 1px,transparent 1px 16px);
}
.hero .container{position:relative;z-index:2;padding:86px 0 74px}
.hero-grid{display:grid;grid-template-columns:1.12fr .88fr;gap:52px;align-items:center}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;font-size:13px;letter-spacing:.06em;
  background:rgba(247,242,232,.12);border:1px solid rgba(247,242,232,.26);color:#EDE6D6;
}
.hero-title{
  margin:22px 0 18px;font-size:46px;line-height:1.24;color:var(--card);letter-spacing:.02em;
}
.hero-sub{font-size:17px;line-height:1.9;color:#E7E0D1;max-width:34em}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.trust-list{display:flex;flex-wrap:wrap;gap:10px 22px;margin-top:34px;padding-top:24px;border-top:1px solid rgba(247,242,232,.2)}
.trust-list li{display:flex;align-items:center;gap:8px;font-size:14px;color:#DCD4C4}
.trust-list li::before{
  content:"";width:6px;height:6px;border-radius:50%;background:var(--copper);flex:none;
}
.hero-card{
  background:rgba(255,253,248,.97);
  border-radius:18px;padding:26px 26px 22px;color:var(--text);
  box-shadow:0 18px 44px rgba(9,29,27,.28);
  border:1px solid rgba(221,211,195,.9);
}
.hero-card-title{
  font-family:var(--font-serif);font-size:16px;font-weight:700;color:var(--ink);
  letter-spacing:.06em;margin-bottom:14px;
}
.quick-list{display:grid;gap:4px}
.quick-list a{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:11px 12px;border-radius:10px;font-size:15px;color:var(--ink);font-weight:500;
  border:1px solid transparent;transition:background-color .2s ease,border-color .2s ease,transform .2s ease;
}
.quick-list a:hover{background:var(--paper-2);border-color:var(--line);transform:translateX(2px);color:var(--copper-dark)}
.quick-list em{font-style:normal;font-size:12px;letter-spacing:.1em;color:var(--faint)}
.hero-card-foot{
  margin-top:16px;padding-top:14px;border-top:1px dashed var(--line);
  font-size:13px;color:var(--muted);line-height:1.7;
}

/* ============ 锚点条 ============ */
.anchor-bar{
  position:sticky;top:var(--header-h);z-index:90;
  background:rgba(247,242,232,.97);
  border-bottom:1px solid var(--line);
}
.anchor-inner{display:flex;align-items:center;gap:6px;padding:10px 0;overflow-x:auto;scrollbar-width:none}
.anchor-inner::-webkit-scrollbar{display:none}
.anchor-link{
  padding:7px 15px;border-radius:999px;font-size:14px;color:var(--muted);white-space:nowrap;
  border:1px solid transparent;transition:all .2s ease;
}
.anchor-link:hover{color:var(--ink);background:var(--card);border-color:var(--line)}
.anchor-note{margin-left:auto;font-size:13px;color:var(--faint);white-space:nowrap;padding-right:4px}

/* ============ 板块 ============ */
.section{padding:96px 0}
.section--alt{background:var(--paper-2)}
.section--tight{padding-top:72px;padding-bottom:72px}
.section-head{max-width:760px;margin-bottom:44px}
.section-head--row{display:flex;align-items:flex-end;justify-content:space-between;gap:28px;max-width:none}
.eyebrow{
  display:inline-block;font-size:13px;letter-spacing:.14em;color:var(--copper);
  font-weight:700;margin-bottom:12px;
}
.section-head h2{font-size:34px;line-height:1.26}
.section-sub{margin-top:14px;font-size:16px;color:var(--muted);max-width:46em}

/* ============ 卖点 ============ */
.value-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:22px}
.value-card{
  grid-column:span 2;
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:26px;box-shadow:var(--shadow-sm);
  display:flex;flex-direction:column;gap:12px;
  transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease;
}
.value-card:hover{transform:translateY(-2px);border-color:var(--copper);box-shadow:var(--shadow)}
.value-card--wide{grid-column:span 4;flex-direction:row;align-items:center;gap:28px}
.value-card--wide .value-body{flex:1}
.value-card--wide figure{margin:0;flex:none;width:238px;border-radius:var(--radius-md);overflow:hidden;border:1px solid var(--line)}
.value-card--wide figure img{width:100%;height:168px;object-fit:cover}
.value-num{
  font-family:var(--font-serif);font-size:14px;font-weight:700;letter-spacing:.16em;color:var(--copper);
}
.value-card h3{font-size:21px}
.value-card p{font-size:15px;color:var(--muted);line-height:1.85}
.card-link{font-size:14px;font-weight:600;color:var(--ink);display:inline-flex;align-items:center;gap:6px;margin-top:auto}
.card-link:hover{color:var(--copper-dark);text-decoration:underline;text-underline-offset:3px}

/* ============ 流程演示 ============ */
.demo-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.demo-figure{margin:0;border-radius:18px;overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow);position:relative;background:var(--card)}
.demo-figure img{width:100%;height:100%;object-fit:cover;min-height:340px}
.demo-figure figcaption{
  position:absolute;left:16px;bottom:16px;right:16px;
  background:rgba(15,43,40,.86);color:#EDE6D6;
  padding:12px 16px;border-radius:10px;font-size:13px;line-height:1.7;
}
.step-list{display:grid;gap:16px;margin-top:28px}
.step{
  display:flex;gap:18px;padding:20px 22px;border-radius:var(--radius-md);
  background:var(--card);border:1px solid var(--line);
  transition:border-color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.step:hover{border-color:var(--copper);transform:translateY(-2px);box-shadow:var(--shadow-sm)}
.step-num{
  flex:none;width:38px;height:38px;border-radius:10px;display:grid;place-items:center;
  background:var(--paper-2);color:var(--ink);font-family:var(--font-serif);font-weight:700;font-size:15px;
  border:1px solid var(--line);
}
.step h3{font-size:18px;margin-bottom:4px}
.step p{font-size:15px;color:var(--muted)}

/* ============ 证据 / 数据带 ============ */
.stat-band{
  display:grid;grid-template-columns:repeat(4,1fr);gap:0;
  border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;
  background:var(--card);box-shadow:var(--shadow-sm);
}
.stat{padding:26px 24px;border-right:1px solid var(--line)}
.stat:last-child{border-right:0}
.stat strong{display:block;font-family:var(--font-serif);font-size:26px;color:var(--ink);line-height:1.3}
.stat span{display:block;font-size:14px;color:var(--muted);margin-top:6px}
.stat small{display:block;font-size:12px;color:var(--faint);margin-top:8px}
.proof-grid{display:grid;grid-template-columns:1fr 1fr;gap:40px;margin-top:48px;align-items:start}
.timeline{position:relative;padding-left:26px}
.timeline::before{content:"";position:absolute;left:6px;top:8px;bottom:8px;width:2px;background:var(--line)}
.timeline li{position:relative;padding-bottom:24px}
.timeline li:last-child{padding-bottom:0}
.timeline li::before{
  content:"";position:absolute;left:-26px;top:9px;width:12px;height:12px;border-radius:50%;
  background:var(--card);border:2px solid var(--copper);
}
.timeline h3{font-size:17px;margin-bottom:4px}
.timeline p{font-size:14px;color:var(--muted)}
.case-stack{display:grid;gap:18px}
.case-card{
  display:grid;grid-template-columns:132px 1fr;gap:18px;align-items:center;
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-md);
  padding:16px;transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.case-card:hover{transform:translateY(-2px);border-color:var(--copper);box-shadow:var(--shadow-sm)}
.case-card img{width:132px;height:96px;object-fit:cover;border-radius:10px;border:1px solid var(--line)}
.case-card h3{font-size:17px;margin:8px 0 6px}
.case-card p{font-size:14px;color:var(--muted)}
.badge{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;
  background:var(--paper-2);color:var(--copper-dark);font-size:12.5px;font-weight:600;letter-spacing:.04em;
}
.badge--ink{background:rgba(22,59,54,.1);color:var(--ink)}

/* ============ 最新信息 ============ */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.news-card{
  display:flex;flex-direction:column;gap:12px;
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:24px;box-shadow:var(--shadow-sm);
  transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease;
}
.news-card:hover{transform:translateY(-2px);border-color:var(--copper);box-shadow:var(--shadow);color:var(--ink)}
.news-card:first-child{grid-column:span 2}
.news-meta{display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.news-date{font-size:13px;color:var(--faint);letter-spacing:.02em}
.news-card h3{font-size:19px;line-height:1.5}
.news-card p{font-size:15px;color:var(--muted);line-height:1.8}
.news-more{font-size:14px;font-weight:600;color:var(--copper-dark);margin-top:auto}
.news-card:hover .news-more{text-decoration:underline;text-underline-offset:3px}
.news-empty{
  background:var(--card);border:1px dashed var(--line);border-radius:var(--radius-lg);
  padding:48px 28px;text-align:center;
}
.news-empty p{color:var(--muted);margin-bottom:18px;font-size:15px}

/* ============ 方案与费用 ============ */
.price-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:24px;align-items:stretch}
.price-main{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:34px;box-shadow:var(--shadow);display:flex;flex-direction:column;
  position:relative;overflow:hidden;
}
.price-main::before{
  content:"";position:absolute;right:-40px;top:-40px;width:160px;height:160px;border-radius:50%;
  background:radial-gradient(circle,rgba(166,106,63,.14),transparent 70%);
}
.price-main h3{font-size:24px;margin-bottom:10px}
.price-amount{
  font-family:var(--font-serif);font-size:30px;color:var(--copper-dark);
  margin:14px 0 6px;letter-spacing:.02em;
}
.price-amount small{font-size:14px;color:var(--muted);font-family:var(--font-sans);letter-spacing:0;margin-left:8px}
.price-list{display:grid;gap:10px;margin:22px 0 26px}
.price-list li{display:flex;gap:10px;font-size:15px;color:var(--muted)}
.price-list li::before{content:"—";color:var(--copper);flex:none}
.price-side{display:grid;gap:24px}
.price-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-md);
  padding:24px;box-shadow:var(--shadow-sm);
  transition:border-color .2s ease,transform .2s ease;
}
.price-card:hover{border-color:var(--copper);transform:translateY(-2px)}
.price-card h3{font-size:18px;margin-bottom:8px}
.price-card p{font-size:14.5px;color:var(--muted)}
.price-card .price-amount{font-size:20px;margin:12px 0 0}

/* ============ FAQ ============ */
.faq-grid{display:grid;grid-template-columns:.82fr 1.18fr;gap:52px;align-items:start}
.faq-list{display:grid;gap:12px}
.faq-item{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-md);
  overflow:hidden;transition:border-color .2s ease,background-color .2s ease;
}
.faq-item[open]{background:var(--paper-2);border-color:var(--copper)}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 22px;min-height:62px;font-size:16px;font-weight:600;color:var(--ink);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"＋";flex:none;font-size:18px;color:var(--copper);font-weight:400;line-height:1;
}
.faq-item[open] summary::after{content:"－"}
.faq-item summary:hover{color:var(--copper-dark)}
.faq-answer{padding:0 22px 20px;font-size:15px;color:var(--muted);line-height:1.9}
.faq-aside{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:26px;box-shadow:var(--shadow-sm);margin-top:24px;
}
.faq-aside p{font-size:14.5px;color:var(--muted);margin-bottom:16px}

/* ============ 最终 CTA ============ */
.final-cta{
  position:relative;background:var(--footer);color:#EDE6D6;padding:76px 0;overflow:hidden;
}
.final-cta::after{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.5;
  background-image:repeating-linear-gradient(135deg,rgba(247,242,232,.06) 0 1px,transparent 1px 18px);
}
.final-cta .container{position:relative;z-index:2}
.cta-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.final-cta h2{color:var(--card);font-size:32px;line-height:1.3}
.final-cta .cta-lead{margin-top:14px;font-size:16px;color:#CFC7B7;max-width:34em}
.cta-points{display:flex;flex-wrap:wrap;gap:10px 20px;margin-top:24px}
.cta-points li{font-size:14px;color:#C8C0B2;display:flex;align-items:center;gap:8px}
.cta-points li::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--copper);flex:none}
.cta-form{
  background:var(--card);border-radius:18px;padding:28px;color:var(--text);
  box-shadow:0 20px 40px rgba(6,24,22,.35);
}
.field{margin-bottom:16px}
.field label{display:block;font-size:13.5px;font-weight:600;color:var(--ink);margin-bottom:7px;letter-spacing:.02em}
.field input,.field select,.field textarea{
  width:100%;height:44px;padding:0 14px;border-radius:var(--radius-sm);
  border:1px solid var(--line);background:var(--paper);color:var(--text);
  transition:border-color .2s ease,box-shadow .2s ease,background-color .2s ease;
}
.field textarea{height:96px;padding:12px 14px;resize:vertical;line-height:1.7}
.field input::placeholder,.field textarea::placeholder{color:var(--faint)}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--copper);background:var(--card);
  box-shadow:0 0 0 3px rgba(194,76,61,.16);
}
.field select{
  appearance:none;-webkit-appearance:none;
  background-image:linear-gradient(45deg,transparent 50%,var(--muted) 50%),linear-gradient(135deg,var(--muted) 50%,transparent 50%);
  background-position:calc(100% - 20px) 50%,calc(100% - 14px) 50%;
  background-size:6px 6px,6px 6px;background-repeat:no-repeat;
}
.field.is-error input,.field.is-error select{border-color:var(--err)}
.field-error{display:none;font-size:12.5px;color:var(--err);margin-top:6px}
.field.is-error .field-error{display:block}
.form-note{font-size:12.5px;color:var(--faint);line-height:1.7;margin-top:12px}
.form-success{
  margin-top:14px;padding:12px 14px;border-radius:var(--radius-sm);
  background:rgba(63,122,94,.12);color:var(--ok);font-size:14px;font-weight:600;
}

/* ============ 页脚 ============ */
.site-footer{background:var(--footer);color:var(--footer-text);padding:66px 0 0;position:relative}
.site-footer::before{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.35;
  background-image:repeating-linear-gradient(90deg,rgba(247,242,232,.05) 0 1px,transparent 1px 22px);
}
.footer-grid{position:relative;z-index:2;display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:40px;padding-bottom:48px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .brand-mark{background:rgba(247,242,232,.12);color:var(--card);box-shadow:inset 0 0 0 1px rgba(247,242,232,.24)}
.footer-brand span{font-family:var(--font-serif);font-size:19px;font-weight:700;color:var(--card);letter-spacing:.04em}
.footer-desc{font-size:14px;color:#A9A392;line-height:1.9;max-width:30em}
.footer-col h4{
  font-family:var(--font-serif);font-size:15px;color:var(--card);
  letter-spacing:.08em;margin-bottom:16px;font-weight:700;
}
.footer-col li{margin-bottom:10px;font-size:14px;line-height:1.8}
.footer-col a{color:var(--footer-text)}
.footer-col a:hover{color:var(--copper);text-decoration:underline;text-underline-offset:3px}
.footer-meta{font-size:14px;color:#A9A392;line-height:1.9}
.footer-bottom{
  position:relative;z-index:2;
  border-top:1px solid rgba(247,242,232,.14);
  padding:20px 0 26px;display:flex;flex-wrap:wrap;gap:10px 24px;
  justify-content:space-between;align-items:center;
  font-size:13px;color:#8F8A7C;
}

/* ============ 浮动 CTA ============ */
.float-cta{position:fixed;right:26px;bottom:28px;z-index:110;display:flex;flex-direction:column;gap:10px;align-items:flex-end}
.float-cta .btn-primary{box-shadow:0 12px 26px rgba(166,106,63,.3)}
.back-top{
  display:none;background:var(--card);border:1px solid var(--line);color:var(--ink);
  padding:9px 16px;border-radius:var(--radius-sm);font-size:14px;font-weight:600;
  box-shadow:var(--shadow-sm);
}
body.show-top .back-top{display:inline-flex}
.mobile-bar{display:none}

/* ============ 响应式 ============ */
@media (max-width:1200px){
  .hero-title{font-size:42px}
  .search{width:196px}
  .value-card--wide figure{width:200px}
}
@media (max-width:992px){
  .section{padding:72px 0}
  .section-head h2{font-size:29px}
  .header-inner{gap:14px}
  .main-nav{
    position:absolute;left:0;right:0;top:100%;
    display:none;flex-direction:column;align-items:stretch;gap:2px;
    background:var(--card);border-bottom:1px solid var(--line);
    padding:12px 20px 18px;box-shadow:0 16px 30px rgba(22,59,54,.12);
  }
  .main-nav.is-open{display:flex}
  .nav-link{padding:12px 12px;font-size:16px;border-radius:8px}
  .nav-link.is-active{background:var(--paper-2)}
  .nav-link.is-active::after{display:none}
  .search{display:none}
  .menu-toggle{display:inline-flex}
  .hero .container{padding:60px 0 56px}
  .hero-grid{grid-template-columns:1fr;gap:34px}
  .hero-title{font-size:36px}
  .hero-sub{font-size:16px}
  .hero-card{padding:22px}
  .anchor-note{display:none}
  .value-grid{grid-template-columns:repeat(2,1fr)}
  .value-card,.value-card--wide{grid-column:span 1;flex-direction:column;align-items:flex-start}
  .value-card--wide figure{width:100%;margin-top:8px}
  .value-card--wide figure img{height:150px}
  .demo-grid{grid-template-columns:1fr;gap:34px}
  .demo-figure img{min-height:260px}
  .stat-band{grid-template-columns:repeat(2,1fr)}
  .stat{border-bottom:1px solid var(--line)}
  .stat:nth-child(2n){border-right:0}
  .stat:nth-last-child(-n+2){border-bottom:0}
  .proof-grid{grid-template-columns:1fr;gap:34px}
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .news-card:first-child{grid-column:span 2}
  .price-grid{grid-template-columns:1fr}
  .faq-grid{grid-template-columns:1fr;gap:30px}
  .cta-grid{grid-template-columns:1fr;gap:32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:768px){
  :root{--header-h:64px}
  .container{padding:0 18px}
  .section{padding:56px 0}
  .section--tight{padding-top:44px;padding-bottom:44px}
  .section-head{margin-bottom:30px}
  .section-head--row{flex-direction:column;align-items:flex-start;gap:16px}
  .hero-title{font-size:31px}
  .section-head h2{font-size:25px}
  .brand-text{font-size:17px}
  .brand-mark{width:34px;height:34px;border-radius:10px}
  .header-cta{padding:8px 14px;font-size:14px}
  .value-grid{grid-template-columns:1fr}
  .news-grid{grid-template-columns:1fr}
  .news-card:first-child{grid-column:span 1}
  .case-card{grid-template-columns:1fr}
  .case-card img{width:100%;height:150px}
  .stat-band{grid-template-columns:1fr}
  .stat{border-right:0;border-bottom:1px solid var(--line)}
  .stat:last-child{border-bottom:0}
  .float-cta{display:none}
  .mobile-bar{
    display:grid;grid-template-columns:1fr 1fr;gap:10px;
    position:fixed;left:0;right:0;bottom:0;z-index:115;
    padding:10px 14px calc(10px + env(safe-area-inset-bottom));
    background:rgba(255,253,248,.97);border-top:1px solid var(--line);
    box-shadow:0 -8px 24px rgba(22,59,54,.1);
  }
  .mobile-bar .btn{width:100%}
  body{padding-bottom:78px}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .final-cta{padding:54px 0}
  .final-cta h2{font-size:26px}
  .cta-form{padding:22px}
  .anchor-bar{top:var(--header-h)}
}
@media (max-width:480px){
  .hero-title{font-size:27px}
  .hero-sub{font-size:15px}
  .hero-actions{flex-direction:column;align-items:stretch}
  .hero-actions .btn{width:100%}
  .section-head h2{font-size:23px}
  .value-card{padding:20px}
  .step{padding:16px}
  .price-main{padding:24px}
  .faq-item summary{padding:16px 18px;font-size:15px}
  .faq-answer{padding:0 18px 16px}
  .btn{padding:11px 18px}
  .news-card{padding:20px}
  .mobile-bar .btn{font-size:14px;padding:11px 8px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;scroll-behavior:auto !important}
}

/* roulang page: article */
:root{
  --ink:#163B36;
  --ink-deep:#102A2A;
  --copper:#A66A3F;
  --copper-dark:#8C5631;
  --cinnabar:#C24C3D;
  --paper:#F7F2E8;
  --paper-2:#EFE8DA;
  --card:#FFFDF8;
  --text:#1E2522;
  --text-2:#5E6660;
  --text-3:#8A8F88;
  --line:#DDD3C3;
  --footer-text:#C8C0B2;
  --ok:#3F7A5E;
  --err:#B8453A;
  --radius-lg:18px;
  --radius:14px;
  --radius-sm:10px;
  --shadow:0 10px 30px rgba(22,59,54,.08);
  --shadow-sm:0 4px 14px rgba(22,59,54,.06);
  --serif:"Source Han Serif SC","Noto Serif SC","Songti SC","SimSun",serif;
  --sans:"PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--sans);
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--ink);text-decoration:none;transition:color .18s ease;}
a:hover{color:var(--copper);}
button{font-family:inherit;font-size:inherit;cursor:pointer;}
input,textarea,select{font-family:inherit;font-size:inherit;color:var(--text);}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--cinnabar);outline-offset:3px;border-radius:4px;}

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

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--radius-sm);
  font-size:15px;font-weight:600;letter-spacing:.02em;
  border:1px solid transparent;background:transparent;
  transition:background .18s ease,color .18s ease,border-color .18s ease,transform .16s ease,box-shadow .18s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--copper);color:#FFFDF8;box-shadow:0 6px 16px rgba(166,106,63,.22);}
.btn-primary:hover{background:var(--copper-dark);color:#FFFDF8;transform:translateY(-1px);box-shadow:0 10px 22px rgba(166,106,63,.28);}
.btn-primary:active{transform:translateY(1px);box-shadow:0 4px 10px rgba(166,106,63,.2);}
.btn-ghost{border-color:var(--ink);color:var(--ink);background:transparent;}
.btn-ghost:hover{background:#E9F0EA;border-color:var(--copper);color:var(--ink);}
.btn-ghost:active{transform:translateY(1px);}
.btn-sm{height:38px;padding:0 16px;font-size:14px;border-radius:8px;}
.btn-block{width:100%;}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;pointer-events:none;}

/* ---------- 顶栏 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,253,248,.97);
  border-bottom:1px solid var(--line);
  transition:box-shadow .22s ease,background .22s ease;
}
.site-header.is-scrolled{box-shadow:0 6px 22px rgba(22,59,54,.09);}
.header-inner{display:flex;align-items:center;gap:24px;height:72px;}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:34px;height:34px;border-radius:9px;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--ink);color:#F3E4CE;flex:0 0 auto;
}
.brand-text{
  font-family:var(--serif);font-size:19px;font-weight:700;
  letter-spacing:.06em;color:var(--ink);white-space:nowrap;
}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:8px;flex:1 1 auto;}
.nav-link{
  position:relative;display:inline-flex;align-items:center;
  height:38px;padding:0 13px;border-radius:8px;
  font-size:15px;color:var(--text-2);white-space:nowrap;
  transition:color .18s ease,background .18s ease;
}
.nav-link:hover{color:var(--ink);background:#F2ECDF;}
.nav-link.is-active{color:var(--ink);font-weight:600;}
.nav-link.is-active::after{
  content:"";position:absolute;left:13px;right:13px;bottom:2px;
  height:2px;border-radius:2px;background:var(--copper);
}
.header-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.nav-search{position:relative;display:flex;align-items:center;}
.nav-search input{
  width:206px;height:38px;padding:0 16px;
  border:1px solid var(--line);border-radius:999px;
  background:var(--paper);color:var(--text);font-size:14px;
  transition:border-color .18s ease,background .18s ease,box-shadow .18s ease;
}
.nav-search input::placeholder{color:var(--text-3);}
.nav-search input:focus{
  outline:none;background:var(--card);
  border-color:var(--copper);box-shadow:0 0 0 3px rgba(194,76,61,.16);
}
.nav-toggle{
  display:none;width:40px;height:40px;border:1px solid var(--line);
  border-radius:10px;background:var(--card);color:var(--ink);
  align-items:center;justify-content:center;
}
.nav-toggle:hover{border-color:var(--copper);}

/* ---------- 文章首屏 ---------- */
.article-hero{
  position:relative;overflow:hidden;
  padding:38px 0 52px;
  background:
    linear-gradient(160deg,rgba(16,42,42,.95),rgba(22,59,54,.86)),
    url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  color:var(--paper);
}
.article-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:repeating-linear-gradient(90deg,rgba(247,242,232,.055) 0 1px,transparent 1px 58px);
}
.article-hero .container{position:relative;z-index:2;}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:rgba(247,242,232,.72);}
.breadcrumb a{color:rgba(247,242,232,.82);}
.breadcrumb a:hover{color:#F3E4CE;text-decoration:underline;text-underline-offset:3px;}
.breadcrumb .sep{color:rgba(247,242,232,.42);}
.breadcrumb .current{color:#E8C9A2;}
.article-hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px;}
.tag{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;
  border-radius:999px;font-size:12.5px;letter-spacing:.04em;
  background:rgba(247,242,232,.12);color:#EBD9BF;border:1px solid rgba(247,242,232,.22);
}
.article-title{
  font-family:var(--serif);font-weight:700;letter-spacing:.02em;
  font-size:clamp(28px,3.4vw,42px);line-height:1.28;
  color:#FFFDF8;margin:16px 0 18px;max-width:22em;
}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:14px 22px;font-size:13.5px;color:rgba(247,242,232,.76);}
.article-meta span{display:inline-flex;align-items:center;gap:6px;}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:rgba(247,242,232,.5);}

/* ---------- 正文布局 ---------- */
.article-section{padding:56px 0 88px;}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:44px;align-items:start;}
.article-main{
  background:var(--card);border:1px solid var(--line);
  border-radius:var(--radius-lg);padding:40px 44px;
  box-shadow:var(--shadow-sm);min-width:0;
}
.article-body{font-size:16px;line-height:1.9;color:var(--text);max-width:46em;}
.article-body>*:first-child{margin-top:0;}
.article-body p{margin:0 0 18px;}
.article-body h2{
  font-family:var(--serif);font-size:25px;line-height:1.4;color:var(--ink);
  margin:38px 0 14px;padding-left:14px;border-left:4px solid var(--copper);
}
.article-body h3{font-size:19.5px;line-height:1.5;color:var(--ink);margin:28px 0 12px;}
.article-body h4{font-size:17px;color:var(--ink);margin:22px 0 10px;}
.article-body ul,.article-body ol{margin:0 0 18px;padding-left:22px;list-style:disc;}
.article-body ol{list-style:decimal;}
.article-body li{margin:8px 0;}
.article-body blockquote{
  margin:24px 0;padding:16px 22px;background:var(--paper-2);
  border-left:3px solid var(--copper);border-radius:0 12px 12px 0;
  color:var(--text-2);font-size:15.5px;
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{border-radius:12px;margin:24px auto;box-shadow:var(--shadow-sm);height:auto;}
.article-body figure{margin:24px 0;}
.article-body figcaption{font-size:13px;color:var(--text-3);text-align:center;margin-top:8px;}
.article-body a{color:var(--copper);text-decoration:underline;text-underline-offset:3px;}
.article-body a:hover{color:var(--copper-dark);}
.article-body table{width:100%;border-collapse:collapse;margin:24px 0;font-size:15px;}
.article-body th,.article-body td{border:1px solid var(--line);padding:11px 15px;text-align:left;vertical-align:top;}
.article-body th{background:var(--paper-2);color:var(--ink);font-weight:600;}
.article-body tbody tr:nth-child(even){background:#FBF7EF;}
.article-body hr{border:0;border-top:1px solid var(--line);margin:32px 0;}
.article-body code{
  background:var(--paper-2);padding:2px 6px;border-radius:5px;
  font-size:14px;color:var(--copper-dark);
}
.article-body pre{
  background:var(--ink-deep);color:#EEE6D8;padding:18px 20px;
  border-radius:12px;overflow-x:auto;font-size:14px;line-height:1.7;
}

/* ---------- 空态 ---------- */
.article-empty{text-align:center;padding:44px 20px 36px;}
.article-empty .empty-mark{
  width:64px;height:64px;margin:0 auto 20px;border-radius:18px;
  display:flex;align-items:center;justify-content:center;
  background:var(--paper-2);color:var(--copper);border:1px solid var(--line);
}
.article-empty h2{font-family:var(--serif);font-size:24px;color:var(--ink);margin-bottom:12px;}
.article-empty p{color:var(--text-2);max-width:32em;margin:0 auto 24px;}

/* ---------- 侧栏 ---------- */
.sidebar{display:flex;flex-direction:column;gap:20px;position:sticky;top:92px;}
.side-card{
  background:var(--card);border:1px solid var(--line);
  border-radius:var(--radius);padding:22px 22px 24px;box-shadow:var(--shadow-sm);
  transition:border-color .18s ease,transform .18s ease;
}
.side-card:hover{border-color:#CBB79B;}
.side-card h3{
  font-family:var(--serif);font-size:17px;color:var(--ink);
  margin-bottom:14px;padding-bottom:12px;border-bottom:1px solid var(--line);
}
.side-card p{font-size:14.5px;color:var(--text-2);line-height:1.8;}
.side-links li+li{margin-top:10px;}
.side-links a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  font-size:14.5px;color:var(--text-2);
  padding:8px 10px;border-radius:8px;transition:background .18s ease,color .18s ease;
}
.side-links a::after{content:"→";color:var(--copper);font-size:13px;opacity:.7;}
.side-links a:hover{background:var(--paper-2);color:var(--ink);}
.side-cta{background:linear-gradient(165deg,var(--ink),#1D4A43);color:#EFE8DA;border-color:transparent;}
.side-cta h3{color:#FFFDF8;border-bottom-color:rgba(247,242,232,.22);}
.side-cta p{color:rgba(247,242,232,.82);margin-bottom:18px;}
.side-facts{display:grid;gap:12px;margin-top:4px;}
.side-facts div{display:flex;gap:10px;font-size:14px;color:var(--text-2);}
.side-facts strong{color:var(--ink);font-weight:600;flex:0 0 auto;}

/* ---------- 相关推荐 ---------- */
.related-section{padding:0 0 84px;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:26px;flex-wrap:wrap;}
.section-head h2{font-family:var(--serif);font-size:29px;color:var(--ink);line-height:1.3;}
.section-head .sub{font-size:14.5px;color:var(--text-3);margin-top:6px;}
.link-more{font-size:14.5px;color:var(--copper);display:inline-flex;align-items:center;gap:6px;}
.link-more:hover{color:var(--copper-dark);text-decoration:underline;text-underline-offset:3px;}
.related-grid{display:grid;grid-template-columns:1.25fr 1fr 1fr;gap:22px;}
.related-card{
  display:flex;flex-direction:column;overflow:hidden;
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow-sm);
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.related-card:hover{transform:translateY(-2px);border-color:var(--copper);box-shadow:var(--shadow);}
.related-card .thumb{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--paper-2);}
.related-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease;}
.related-card:hover .thumb img{transform:scale(1.03);}
.related-card .body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1;}
.related-card .cat{font-size:12.5px;color:var(--copper);letter-spacing:.06em;}
.related-card h3{font-size:17px;line-height:1.55;color:var(--ink);font-weight:600;}
.related-card p{font-size:14px;color:var(--text-2);line-height:1.75;}
.related-card .meta{font-size:12.5px;color:var(--text-3);margin-top:auto;padding-top:8px;}

/* ---------- 文末返回 ---------- */
.back-row{display:flex;flex-wrap:wrap;gap:14px;margin-top:36px;padding-top:26px;border-top:1px solid var(--line);}
.back-link{font-size:14.5px;color:var(--text-2);display:inline-flex;align-items:center;gap:7px;}
.back-link:hover{color:var(--copper);}

/* ---------- 浮动 CTA ---------- */
.float-cta{
  position:fixed;right:26px;bottom:28px;z-index:70;
  display:flex;flex-direction:column;gap:10px;align-items:flex-end;
}
.float-cta .btn{box-shadow:0 12px 26px rgba(22,59,54,.18);}
#backTop{opacity:0;visibility:hidden;transform:translateY(6px);transition:opacity .22s ease,transform .22s ease,visibility .22s;}
#backTop.is-visible{opacity:1;visibility:visible;transform:translateY(0);}
#backTop{background:var(--card);border-color:var(--line);color:var(--ink);}
#backTop:hover{background:var(--paper-2);border-color:var(--copper);}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink-deep);color:var(--footer-text);padding:60px 0 0;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px;padding-bottom:44px;}
.footer-brand{display:flex;align-items:center;gap:10px;color:#F3E9D8;font-family:var(--serif);font-size:18px;font-weight:700;letter-spacing:.05em;margin-bottom:14px;}
.footer-brand .brand-mark{background:rgba(247,242,232,.12);color:#E8C9A2;width:32px;height:32px;border-radius:9px;}
.footer-desc{font-size:14px;line-height:1.85;color:rgba(200,192,178,.86);max-width:30em;}
.footer-col h4{font-size:15px;color:#F3E9D8;font-weight:600;margin-bottom:16px;letter-spacing:.04em;}
.footer-col ul li{font-size:14px;line-height:1.9;color:rgba(200,192,178,.9);margin-bottom:8px;}
.footer-col ul li a{color:rgba(200,192,178,.9);}
.footer-col ul li a:hover{color:var(--copper);text-decoration:underline;text-underline-offset:3px;}
.footer-meta{font-size:13.5px;line-height:1.85;color:rgba(200,192,178,.76);}
.footer-bottom{
  border-top:1px solid rgba(247,242,232,.14);padding:20px 0 26px;
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(200,192,178,.72);
}

/* ---------- 响应式 ---------- */
@media (max-width:1200px){
  .container{padding:0 22px;}
  .article-layout{grid-template-columns:minmax(0,1fr) 290px;gap:32px;}
  .article-main{padding:34px 32px;}
  .related-grid{grid-template-columns:1fr 1fr 1fr;}
}
@media (max-width:1024px){
  .nav-search input{width:150px;}
  .nav-link{padding:0 10px;font-size:14.5px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px;}
}
@media (max-width:992px){
  .nav-toggle{display:inline-flex;}
  .main-nav{
    position:absolute;left:0;right:0;top:72px;
    flex-direction:column;align-items:stretch;gap:4px;
    background:var(--card);border-bottom:1px solid var(--line);
    padding:14px 20px 18px;margin:0;
    box-shadow:0 18px 30px rgba(22,59,54,.12);
    display:none;
  }
  .main-nav.is-open{display:flex;}
  .main-nav .nav-link{height:44px;padding:0 12px;font-size:15px;}
  .main-nav .nav-link.is-active::after{left:12px;right:auto;width:22px;bottom:8px;}
  .header-inner{gap:14px;justify-content:space-between;}
  .nav-search{display:none;}
  .article-layout{grid-template-columns:1fr;}
  .sidebar{position:static;}
  .related-grid{grid-template-columns:1fr 1fr;}
  .article-hero{padding:32px 0 44px;}
}
@media (max-width:768px){
  .container{padding:0 18px;}
  .header-inner{height:64px;}
  .brand-text{font-size:17px;}
  .main-nav{top:64px;}
  .article-section{padding:36px 0 64px;}
  .article-main{padding:26px 22px;border-radius:var(--radius);}
  .article-body{font-size:15.5px;line-height:1.85;}
  .article-body h2{font-size:22px;margin:30px 0 12px;}
  .article-body h3{font-size:18px;}
  .article-body table{display:block;overflow-x:auto;white-space:nowrap;}
  .related-grid{grid-template-columns:1fr;}
  .related-card .thumb{aspect-ratio:16/9;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  .footer-bottom{flex-direction:column;gap:8px;}
  .float-cta{right:16px;left:16px;bottom:16px;flex-direction:row;justify-content:flex-end;flex-wrap:wrap;}
  .float-cta .btn{flex:1 1 auto;}
  .section-head h2{font-size:24px;}
  .related-section{padding-bottom:64px;}
}
@media (max-width:520px){
  .article-title{font-size:26px;}
  .article-hero-tags{gap:8px;}
  .article-main{padding:22px 16px;}
  .header-actions .btn-sm{height:36px;padding:0 12px;font-size:13.5px;}
  .article-empty{padding:30px 6px 24px;}
  #backTop{display:none;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;scroll-behavior:auto!important;}
}

/* roulang page: category1 */
/* ===== 设计变量 ===== */
:root{
  --ink:#163B36;
  --ink-deep:#102A2A;
  --copper:#A66A3F;
  --copper-dark:#8C5631;
  --cinnabar:#C24C3D;
  --paper:#F7F2E8;
  --paper-2:#EFE8DA;
  --card:#FFFDF8;
  --text:#1E2522;
  --text-2:#5E6660;
  --text-3:#8A8F88;
  --line:#DDD3C3;
  --ok:#3F7A5E;
  --warn:#B98332;
  --err:#B8453A;
  --r-lg:18px;
  --r-md:14px;
  --r-sm:9px;
  --shadow:0 10px 30px rgba(22,59,54,.08);
  --shadow-sm:0 4px 14px rgba(22,59,54,.06);
  --serif:"Noto Serif SC","Source Han Serif SC","Songti SC",serif;
  --sans:"Noto Sans SC","PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  --ease:cubic-bezier(.22,.61,.36,1);
}
/* ===== 基础重置 ===== */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;padding:0;
  font-family:var(--sans);
  font-size:16px;line-height:1.85;
  color:var(--text);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0;}
ul,ol{padding:0;list-style:none;}
img{max-width:100%;display:block;border:0;}
a{color:var(--ink);text-decoration:none;transition:color .2s var(--ease);}
a:hover{color:var(--copper);}
a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible,
summary:focus-visible{
  outline:2px solid var(--cinnabar);
  outline-offset:3px;
  border-radius:4px;
}
button{font-family:inherit;font-size:inherit;cursor:pointer;}
::selection{background:rgba(166,106,63,.22);color:var(--ink-deep);}
/* ===== 容器 ===== */
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
@media (min-width:1440px){.container{max-width:1280px;}}
/* ===== 顶部导航 ===== */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(255,253,248,.96);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s var(--ease),background .25s var(--ease);
  backdrop-filter:saturate(120%) blur(2px);
}
.site-header.is-scrolled{box-shadow:0 6px 22px rgba(22,59,54,.09);}
.header-inner{
  display:flex;align-items:center;gap:24px;
  min-height:72px;
}
.brand{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--serif);
  font-weight:700;font-size:19px;letter-spacing:.02em;
  color:var(--ink);white-space:nowrap;
}
.brand:hover{color:var(--ink);}
.brand-mark{
  display:inline-flex;align-items:center;justify-content:center;
  width:36px;height:36px;border-radius:11px;
  background:linear-gradient(150deg,#1B4A43,#163B36);
  color:#E9DFC9;
  border:1px solid rgba(166,106,63,.5);
  box-shadow:0 4px 12px rgba(22,59,54,.18);
}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:12px;flex:1 1 auto;}
.nav-link{
  position:relative;
  display:inline-block;
  padding:8px 13px;
  font-size:15px;color:var(--text-2);
  border-radius:var(--r-sm);
  transition:color .2s var(--ease),background .2s var(--ease);
}
.nav-link:hover{color:var(--ink);background:var(--paper-2);}
.nav-link.is-active{color:var(--ink);font-weight:600;}
.nav-link.is-active::after{
  content:"";position:absolute;left:13px;right:13px;bottom:2px;
  height:2px;border-radius:2px;background:var(--copper);
}
.header-actions{display:flex;align-items:center;gap:12px;margin-left:auto;}
.search-box{
  display:flex;align-items:center;gap:8px;
  height:40px;padding:0 16px;
  background:var(--paper-2);
  border:1px solid transparent;
  border-radius:999px;
  color:var(--text-3);
  transition:border-color .2s var(--ease),background .2s var(--ease),box-shadow .2s var(--ease);
}
.search-box:focus-within{
  background:var(--card);
  border-color:var(--copper);
  box-shadow:0 0 0 3px rgba(194,76,61,.18);
}
.search-box svg{flex:0 0 auto;color:var(--text-3);}
.search-box input{
  width:158px;border:0;background:transparent;outline:none;
  font-family:inherit;font-size:14px;color:var(--text);
}
.search-box input::placeholder{color:var(--text-3);}
.nav-toggle{
  display:none;
  width:42px;height:42px;border-radius:var(--r-sm);
  border:1px solid var(--line);background:var(--card);
  color:var(--ink);
  align-items:center;justify-content:center;
}
.nav-toggle:hover{border-color:var(--copper);color:var(--copper);}
/* ===== 按钮 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;
  font-size:15px;font-weight:600;line-height:1;
  border-radius:10px;border:1px solid transparent;
  transition:transform .18s var(--ease),background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);
  white-space:nowrap;
}
.btn-primary{background:var(--copper);color:#FFF8EE;box-shadow:0 6px 18px rgba(166,106,63,.26);}
.btn-primary:hover{background:var(--copper-dark);color:#FFF8EE;transform:translateY(-1px);box-shadow:0 10px 24px rgba(166,106,63,.3);}
.btn-primary:active{transform:translateY(1px);box-shadow:0 4px 12px rgba(166,106,63,.24);}
.btn-ghost{background:transparent;border-color:var(--ink);color:var(--ink);}
.btn-ghost:hover{background:var(--paper-2);border-color:var(--copper);color:var(--ink);transform:translateY(-1px);}
.btn-ghost:active{transform:translateY(1px);}
.btn-light{background:#FFF8EE;color:var(--ink-deep);}
.btn-light:hover{background:#fff;color:var(--ink-deep);transform:translateY(-1px);}
.btn-sm{height:40px;padding:0 18px;font-size:14px;border-radius:9px;}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none;}
/* ===== 面包屑 ===== */
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--text-3);
  padding:22px 0 0;
}
.breadcrumb a{color:var(--text-2);}
.breadcrumb a:hover{color:var(--copper);}
.breadcrumb .sep{color:var(--line);}
.breadcrumb .current{color:var(--copper);}
/* ===== Hero ===== */
.hero{
  position:relative;
  overflow:hidden;
  background:var(--ink-deep);
  color:#F3EEE2;
  margin-top:18px;
  border-radius:0;
}
.hero-bg{
  position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-1.png");
  background-size:cover;background-position:center;
  opacity:.42;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(120% 90% at 12% 0%,rgba(22,59,54,.92),rgba(16,42,42,.97) 62%),
    linear-gradient(0deg,rgba(16,42,42,.96),rgba(16,42,42,.7));
}
.hero::after{
  content:"";position:absolute;inset:0;
  background-image:repeating-linear-gradient(135deg,rgba(247,242,232,.055) 0 1px,transparent 1px 14px);
  opacity:.7;pointer-events:none;
}
.hero-inner{
  position:relative;z-index:2;
  display:grid;grid-template-columns:1.35fr .85fr;gap:48px;
  padding:72px 0 76px;
  align-items:center;
}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  height:28px;padding:0 14px;margin-bottom:22px;
  font-size:13px;letter-spacing:.08em;
  color:#EBD9BE;
  background:rgba(166,106,63,.22);
  border:1px solid rgba(166,106,63,.5);
  border-radius:999px;
}
.hero h1{
  font-family:var(--serif);
  font-size:clamp(30px,4.2vw,48px);
  line-height:1.25;font-weight:700;letter-spacing:.02em;
  color:#FBF7ED;
  margin-bottom:20px;
}
.hero-sub{
  font-size:17px;line-height:1.9;color:#D4CBBA;
  max-width:34em;margin-bottom:18px;
}
.hero-points{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:32px;}
.chip{
  display:inline-flex;align-items:center;gap:6px;
  height:28px;padding:0 13px;
  font-size:13px;color:#E5DBC8;
  background:rgba(247,242,232,.1);
  border:1px solid rgba(247,242,232,.2);
  border-radius:999px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;}
.hero-card{
  background:rgba(255,253,248,.97);
  color:var(--text);
  border:1px solid rgba(221,211,195,.9);
  border-radius:var(--r-lg);
  padding:26px;
  box-shadow:0 18px 40px rgba(6,22,21,.34);
}
.hero-card h2{
  font-family:var(--serif);font-size:18px;font-weight:600;
  color:var(--ink);margin-bottom:16px;
  padding-bottom:14px;border-bottom:1px dashed var(--line);
}
.hero-card dl{margin:0;display:grid;gap:14px;}
.hero-card .row{display:flex;justify-content:space-between;gap:16px;font-size:14px;}
.hero-card dt{color:var(--text-3);flex:0 0 auto;}
.hero-card dd{margin:0;color:var(--text);text-align:right;font-weight:500;}
.hero-card .note{
  margin-top:18px;padding-top:14px;border-top:1px dashed var(--line);
  font-size:12.5px;color:var(--text-3);line-height:1.7;
}
/* ===== 板块通用 ===== */
.section{padding:96px 0;}
.section.tight{padding:78px 0;}
.section.alt{background:var(--paper-2);}
.section-head{max-width:46em;margin-bottom:48px;}
.section-head .kicker{
  display:inline-block;
  font-size:13px;letter-spacing:.14em;color:var(--copper);
  font-weight:600;margin-bottom:14px;
}
.section-head h2{
  font-family:var(--serif);
  font-size:clamp(24px,3vw,34px);
  line-height:1.3;font-weight:700;color:var(--ink);
  margin-bottom:16px;
}
.section-head p{font-size:16px;color:var(--text-2);line-height:1.9;}
/* ===== 时间轴 ===== */
.timeline{position:relative;padding-left:34px;}
.timeline::before{
  content:"";position:absolute;left:9px;top:6px;bottom:6px;width:2px;
  background:linear-gradient(180deg,var(--copper),rgba(221,211,195,.4));
  border-radius:2px;
}
.tl-item{position:relative;padding-bottom:34px;}
.tl-item:last-child{padding-bottom:0;}
.tl-item::before{
  content:"";position:absolute;left:-32px;top:8px;
  width:12px;height:12px;border-radius:50%;
  background:var(--card);
  border:2px solid var(--copper);
  box-shadow:0 0 0 4px rgba(166,106,63,.12);
}
.tl-item h3{
  font-family:var(--serif);font-size:19px;font-weight:600;color:var(--ink);
  margin-bottom:8px;
}
.tl-item .tl-tag{
  display:inline-block;font-size:12px;letter-spacing:.08em;
  color:var(--copper);background:rgba(166,106,63,.1);
  border-radius:999px;padding:2px 10px;margin-bottom:10px;
}
.tl-item p{font-size:15.5px;color:var(--text-2);max-width:44em;}
/* ===== 原则卡（非对称） ===== */
.principles{display:grid;grid-template-columns:1.15fr .85fr;gap:24px;}
.principle-main{
  background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-lg);padding:32px;
  box-shadow:var(--shadow-sm);
  transition:border-color .22s var(--ease),transform .22s var(--ease),box-shadow .22s var(--ease);
}
.principle-main:hover{border-color:var(--copper);transform:translateY(-2px);box-shadow:var(--shadow);}
.principle-main .num{
  font-family:var(--serif);font-size:44px;line-height:1;color:rgba(166,106,63,.32);
  font-weight:700;margin-bottom:12px;
}
.principle-main h3{
  font-family:var(--serif);font-size:23px;color:var(--ink);
  margin-bottom:14px;line-height:1.35;
}
.principle-main p{color:var(--text-2);font-size:15.5px;margin-bottom:12px;}
.principle-main ul{display:grid;gap:8px;margin-top:16px;}
.principle-main li{
  position:relative;padding-left:20px;font-size:14.5px;color:var(--text-2);
}
.principle-main li::before{
  content:"";position:absolute;left:0;top:11px;
  width:7px;height:7px;border-radius:2px;background:var(--copper);
}
.principle-side{display:grid;gap:24px;align-content:start;}
.principle-mini{
  background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-md);padding:24px;
  transition:border-color .22s var(--ease),transform .22s var(--ease),box-shadow .22s var(--ease);
}
.principle-mini:hover{border-color:var(--copper);transform:translateY(-2px);box-shadow:var(--shadow-sm);}
.principle-mini h3{
  font-family:var(--serif);font-size:18px;color:var(--ink);margin-bottom:10px;
}
.principle-mini p{font-size:14.5px;color:var(--text-2);}
/* ===== 信息网格 ===== */
.info-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.info-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);
  padding:24px;
  transition:border-color .22s var(--ease),transform .22s var(--ease),box-shadow .22s var(--ease);
}
.info-card:hover{border-color:var(--copper);transform:translateY(-2px);box-shadow:var(--shadow-sm);}
.info-card .ico{
  width:38px;height:38px;border-radius:11px;
  display:flex;align-items:center;justify-content:center;
  background:rgba(22,59,54,.07);color:var(--ink);
  margin-bottom:14px;
}
.info-card h3{font-size:17px;font-family:var(--serif);color:var(--ink);margin-bottom:8px;}
.info-card p{font-size:14.5px;color:var(--text-2);}
.info-card .tag{
  display:inline-block;margin-top:14px;
  font-size:12px;color:var(--copper);
  background:rgba(166,106,63,.1);border-radius:999px;padding:2px 10px;
}
/* ===== 服务范围（图文） ===== */
.split{
  display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;
}
.split-media{
  border-radius:var(--r-lg);overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--shadow);
  background:var(--paper-2);
}
.split-media img{width:100%;height:100%;object-fit:cover;aspect-ratio:16/11;}
.split-body h2{
  font-family:var(--serif);font-size:clamp(24px,3vw,32px);
  color:var(--ink);line-height:1.32;margin-bottom:16px;
}
.split-body > p{color:var(--text-2);font-size:15.5px;margin-bottom:22px;}
.check-list{display:grid;gap:14px;margin-bottom:26px;}
.check-list li{
  position:relative;padding-left:30px;font-size:15px;color:var(--text);
}
.check-list li::before{
  content:"✓";position:absolute;left:0;top:0;
  width:20px;height:20px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  font-size:11px;font-weight:700;
  background:rgba(63,122,94,.14);color:var(--ok);
}
.check-list li span{display:block;color:var(--text-2);font-size:14px;margin-top:2px;}
/* ===== 流程 ===== */
.flow{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;counter-reset:step;}
.flow-item{
  position:relative;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);
  padding:26px 22px;
  transition:border-color .22s var(--ease),transform .22s var(--ease),box-shadow .22s var(--ease);
}
.flow-item:hover{border-color:var(--copper);transform:translateY(-2px);box-shadow:var(--shadow-sm);}
.flow-item .step-no{
  display:inline-flex;align-items:center;justify-content:center;
  width:30px;height:30px;border-radius:9px;
  background:var(--ink);color:#F3EEE2;
  font-family:var(--serif);font-size:14px;font-weight:600;
  margin-bottom:14px;
}
.flow-item h3{font-size:17px;color:var(--ink);margin-bottom:8px;font-family:var(--serif);}
.flow-item p{font-size:14.5px;color:var(--text-2);}
/* ===== FAQ ===== */
.faq-wrap{display:grid;grid-template-columns:.62fr 1fr;gap:48px;align-items:start;}
.faq-intro h2{
  font-family:var(--serif);font-size:clamp(24px,3vw,32px);
  color:var(--ink);line-height:1.32;margin-bottom:16px;
}
.faq-intro p{color:var(--text-2);font-size:15.5px;margin-bottom:22px;}
.faq-list{display:grid;gap:0;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;
  min-height:62px;padding:14px 4px;
  font-size:16px;font-weight:600;color:var(--ink);
  transition:color .2s var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--copper);}
.faq-item summary .plus{
  position:relative;flex:0 0 auto;
  width:22px;height:22px;border-radius:50%;
  border:1px solid var(--line);color:var(--copper);
  transition:transform .25s var(--ease),border-color .2s var(--ease),background .2s var(--ease);
}
.faq-item summary .plus::before,
.faq-item summary .plus::after{
  content:"";position:absolute;left:50%;top:50%;
  background:currentColor;border-radius:2px;
  transform:translate(-50%,-50%);
}
.faq-item summary .plus::before{width:10px;height:1.6px;}
.faq-item summary .plus::after{width:1.6px;height:10px;transition:opacity .2s var(--ease);}
.faq-item[open] summary{color:var(--copper);}
.faq-item[open] summary .plus{transform:rotate(180deg);border-color:var(--copper);background:rgba(166,106,63,.1);}
.faq-item[open] summary .plus::after{opacity:0;}
.faq-item .answer{
  padding:0 4px 20px;
  font-size:15px;color:var(--text-2);line-height:1.9;
  max-width:44em;
}
.faq-item[open] .answer{background:transparent;}
/* ===== CTA 通栏 ===== */
.cta-band{
  background:var(--ink-deep);
  color:#F3EEE2;
  position:relative;overflow:hidden;
  padding:76px 0;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center;
  opacity:.16;
}
.cta-band::after{
  content:"";position:absolute;inset:0;
  background-image:repeating-linear-gradient(45deg,rgba(247,242,232,.05) 0 1px,transparent 1px 18px);
  pointer-events:none;
}
.cta-inner{
  position:relative;z-index:2;
  display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;
}
.cta-copy h2{
  font-family:var(--serif);font-size:clamp(24px,3vw,32px);
  line-height:1.35;color:#FBF7ED;margin-bottom:14px;
}
.cta-copy p{color:#CFC6B6;font-size:15.5px;max-width:32em;}
.cta-copy .cta-note{
  margin-top:20px;font-size:13px;color:#A9A192;
  border-left:2px solid rgba(166,106,63,.6);padding-left:12px;
}
.form-card{
  background:rgba(255,253,248,.98);
  border-radius:var(--r-lg);
  padding:28px;
  box-shadow:0 20px 44px rgba(6,22,21,.3);
  color:var(--text);
}
.form-card h3{
  font-family:var(--serif);font-size:19px;color:var(--ink);margin-bottom:6px;
}
.form-card .form-hint{font-size:13px;color:var(--text-3);margin-bottom:20px;}
.field{margin-bottom:16px;}
.field label{
  display:block;font-size:13.5px;font-weight:600;color:var(--text);
  margin-bottom:7px;
}
.field input,
.field select,
.field textarea{
  width:100%;
  font-family:inherit;font-size:15px;color:var(--text);
  background:var(--paper);
  border:1px solid var(--line);
  border-radius:8px;
  padding:0 14px;height:44px;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease);
}
.field textarea{height:auto;min-height:92px;padding:12px 14px;line-height:1.7;resize:vertical;}
.field input::placeholder,
.field textarea::placeholder{color:var(--text-3);}
.field input:focus,
.field select:focus,
.field textarea:focus{
  outline:none;background:#fff;
  border-color:var(--copper);
  box-shadow:0 0 0 3px rgba(194,76,61,.16);
}
.field .error-text{display:none;font-size:12.5px;color:var(--err);margin-top:6px;}
.field.has-error input,
.field.has-error textarea{border-color:var(--err);}
.field.has-error .error-text{display:block;}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:14px;}
.form-submit{width:100%;margin-top:6px;}
.form-success{
  display:none;
  margin-top:14px;padding:12px 14px;
  font-size:13.5px;color:var(--ok);
  background:rgba(63,122,94,.1);
  border:1px solid rgba(63,122,94,.28);
  border-radius:8px;
}
.form-success.is-visible{display:block;}
/* ===== 页脚 ===== */
.site-footer{
  background:var(--ink-deep);
  color:#EFE8DA;
  padding:64px 0 28px;
  border-top:3px solid rgba(166,106,63,.5);
}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.15fr;gap:40px;
  padding-bottom:40px;border-bottom:1px solid rgba(247,242,232,.14);
}
.footer-brand{
  display:flex;align-items:center;gap:10px;
  font-family:var(--serif);font-size:18px;font-weight:700;color:#FBF7ED;
  margin-bottom:14px;
}
.footer-brand .brand-mark{
  background:rgba(247,242,232,.1);
  border-color:rgba(166,106,63,.6);
  color:#E9DFC9;
}
.footer-desc{font-size:14px;line-height:1.85;color:#C8C0B2;max-width:26em;}
.footer-col h4{
  font-size:14px;font-weight:600;color:#FBF7ED;
  margin-bottom:16px;letter-spacing:.06em;
}
.footer-col ul{display:grid;gap:10px;}
.footer-col li{font-size:14px;color:#C8C0B2;}
.footer-col a{color:#C8C0B2;font-size:14px;}
.footer-col a:hover{color:var(--copper);}
.footer-meta{font-size:13.5px;line-height:1.9;color:#A9A192;}
.footer-bottom{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  padding-top:22px;font-size:13px;color:#A9A192;
}
/* ===== 浮动 CTA ===== */
.float-cta{
  position:fixed;right:26px;bottom:28px;z-index:70;
  display:flex;flex-direction:column;gap:10px;align-items:flex-end;
}
.float-cta .back-top{
  opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity .25s var(--ease),transform .25s var(--ease),visibility .25s;
  display:inline-flex;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:50%;
  background:var(--card);border:1px solid var(--line);
  color:var(--ink);box-shadow:var(--shadow-sm);
}
.float-cta .back-top.is-visible{opacity:1;visibility:visible;transform:translateY(0);}
.float-cta .back-top:hover{border-color:var(--copper);color:var(--copper);}
.mobile-bar{display:none;}
/* ===== 空态（占位样式） ===== */
.empty-state{
  text-align:center;padding:44px 24px;
  background:var(--card);border:1px dashed var(--line);border-radius:var(--r-md);
  color:var(--text-2);font-size:14.5px;
}
/* ===== 响应式 ===== */
@media (max-width:1200px){
  .hero-inner{grid-template-columns:1.2fr .9fr;gap:36px;}
  .split{gap:36px;}
}
@media (max-width:992px){
  .header-inner{flex-wrap:wrap;gap:14px;padding:12px 0;}
  .nav-toggle{display:inline-flex;margin-left:auto;}
  .header-actions{order:3;width:100%;justify-content:space-between;margin-left:0;display:none;}
  .main-nav{
    order:4;width:100%;flex-direction:column;align-items:stretch;gap:2px;
    margin-left:0;padding-top:8px;
    display:none;border-top:1px solid var(--line);
  }
  .site-header.nav-open .main-nav{display:flex;}
  .site-header.nav-open .header-actions{display:flex;padding-bottom:14px;}
  .nav-link{padding:12px;border-radius:8px;}
  .nav-link.is-active::after{left:12px;right:auto;width:22px;bottom:8px;}
  .hero-inner{grid-template-columns:1fr;padding:56px 0 60px;}
  .hero-card{max-width:520px;}
  .section{padding:72px 0;}
  .section.tight{padding:60px 0;}
  .principles{grid-template-columns:1fr;}
  .info-grid{grid-template-columns:repeat(2,1fr);}
  .flow{grid-template-columns:repeat(2,1fr);}
  .split{grid-template-columns:1fr;}
  .split-media{order:-1;}
  .faq-wrap{grid-template-columns:1fr;gap:28px;}
  .cta-inner{grid-template-columns:1fr;gap:34px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .float-cta{display:none;}
  .mobile-bar{
    display:grid;grid-template-columns:1.1fr 1fr;gap:10px;
    position:fixed;left:0;right:0;bottom:0;z-index:75;
    padding:10px 16px calc(10px + env(safe-area-inset-bottom));
    background:rgba(255,253,248,.97);
    border-top:1px solid var(--line);
    box-shadow:0 -8px 24px rgba(22,59,54,.1);
  }
  .mobile-bar .btn{height:44px;font-size:14.5px;width:100%;}
  body{padding-bottom:76px;}
}
@media (max-width:768px){
  .container{padding:0 18px;}
  .section{padding:56px 0;}
  .section.tight{padding:48px 0;}
  .section-head{margin-bottom:32px;}
  .info-grid{grid-template-columns:1fr;}
  .flow{grid-template-columns:1fr;}
  .form-row{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;}
  .hero-sub{font-size:16px;}
  .hero-card{padding:22px;}
  .hero-card .row{flex-direction:column;gap:4px;}
  .hero-card dd{text-align:left;}
  .cta-band{padding:56px 0;}
  .timeline{padding-left:28px;}
  .tl-item::before{left:-27px;}
}
@media (max-width:480px){
  body{font-size:15px;}
  .brand{font-size:17px;}
  .brand-mark{width:32px;height:32px;border-radius:10px;}
  .hero h1{font-size:30px;}
  .section-head h2,.split-body h2,.faq-intro h2,.cta-copy h2{font-size:24px;}
  .btn{width:100%;}
  .hero-actions{flex-direction:column;align-items:stretch;}
  .mobile-bar{grid-template-columns:1fr 1fr;}
  .principle-main,.principle-mini,.info-card{padding:20px;}
  .form-card{padding:22px;}
}

/* roulang page: category2 */
:root{
    --ink:#163B36;
    --ink-deep:#102A2A;
    --copper:#A66A3F;
    --copper-dark:#8C5631;
    --cinnabar:#C24C3D;
    --paper:#F7F2E8;
    --paper-2:#EFE8DA;
    --card:#FFFDF8;
    --text:#1E2522;
    --muted:#5E6660;
    --faint:#8A8F88;
    --line:#DDD3C3;
    --success:#3F7A5E;
    --warning:#B98332;
    --error:#B8453A;
    --radius-lg:18px;
    --radius:14px;
    --radius-sm:10px;
    --shadow:0 10px 30px rgba(22,59,54,.08);
    --shadow-sm:0 4px 14px rgba(22,59,54,.06);
    --font-serif:"Source Han Serif SC","Noto Serif SC","Songti SC",serif;
    --font-sans:"PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
  }

  *,*::before,*::after{box-sizing:border-box;}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
  body{
    margin:0;
    font-family:var(--font-sans);
    font-size:16px;
    line-height:1.85;
    color:var(--text);
    background:var(--paper);
    -webkit-font-smoothing:antialiased;
  }
  h1,h2,h3,h4{font-family:var(--font-serif);font-weight:600;letter-spacing:.02em;line-height:1.3;margin:0;color:var(--ink);}
  p{margin:0 0 14px;}
  p:last-child{margin-bottom:0;}
  a{color:var(--ink);text-decoration:none;transition:color .2s ease;}
  a:hover{color:var(--copper);}
  img{max-width:100%;display:block;}
  ul,ol{margin:0;padding:0;list-style:none;}
  button{font-family:inherit;}
  :focus-visible{outline:2px solid var(--cinnabar);outline-offset:3px;border-radius:4px;}

  .container{
    width:100%;
    max-width:1200px;
    margin:0 auto;
    padding:0 24px;
  }
  .section{padding:88px 0;}
  .section--tight{padding:64px 0;}
  .section--paper{background:var(--paper-2);}
  .section--card{background:var(--card);}

  .eyebrow{
    display:inline-flex;
    align-items:center;
    gap:8px;
    font-size:13px;
    letter-spacing:.14em;
    color:var(--copper);
    font-weight:600;
    margin-bottom:14px;
  }
  .eyebrow::before{
    content:"";
    width:22px;height:2px;background:var(--copper);border-radius:2px;
  }
  .h2{font-size:34px;margin-bottom:16px;}
  .section-head{max-width:760px;margin-bottom:44px;}
  .section-head p{color:var(--muted);font-size:16px;}
  .section-head--center{margin-left:auto;margin-right:auto;text-align:center;}
  .section-head--center .eyebrow{justify-content:center;}

  /* ============ 头部导航 ============ */
  .site-header{
    position:sticky;
    top:0;
    z-index:80;
    background:rgba(255,253,248,.96);
    border-bottom:1px solid var(--line);
    backdrop-filter:blur(6px);
    transition:box-shadow .25s ease;
  }
  .site-header.is-scrolled{box-shadow:var(--shadow-sm);}
  .header-inner{
    display:flex;
    align-items:center;
    gap:20px;
    height:72px;
  }
  .brand{
    display:inline-flex;
    align-items:center;
    gap:10px;
    flex-shrink:0;
    color:var(--ink);
  }
  .brand:hover{color:var(--ink);}
  .brand-mark{
    width:36px;height:36px;
    display:inline-flex;align-items:center;justify-content:center;
    border-radius:10px;
    background:var(--ink);
    color:var(--paper);
    flex-shrink:0;
  }
  .brand-name{
    font-family:var(--font-serif);
    font-size:19px;
    font-weight:700;
    letter-spacing:.03em;
    white-space:nowrap;
  }
  .main-nav{
    display:flex;
    align-items:center;
    gap:4px;
    margin-left:12px;
    flex:1;
  }
  .nav-link{
    position:relative;
    display:inline-block;
    padding:8px 12px;
    font-size:15px;
    color:var(--muted);
    border-radius:8px;
    white-space:nowrap;
    transition:color .2s ease,background .2s ease;
  }
  .nav-link:hover{color:var(--ink);background:var(--paper-2);}
  .nav-link.is-active{color:var(--ink);font-weight:600;}
  .nav-link.is-active::after{
    content:"";
    position:absolute;
    left:12px;right:12px;bottom:2px;
    height:2px;
    background:var(--copper);
    border-radius:2px;
  }
  .header-actions{
    display:flex;
    align-items:center;
    gap:12px;
    flex-shrink:0;
  }
  .search-box{
    display:flex;
    align-items:center;
    gap:8px;
    height:40px;
    padding:0 16px;
    background:var(--paper);
    border:1px solid var(--line);
    border-radius:999px;
    transition:border-color .2s ease,box-shadow .2s ease;
  }
  .search-box:focus-within{
    border-color:var(--copper);
    box-shadow:0 0 0 3px rgba(194,76,61,.18);
  }
  .search-box i{color:var(--faint);font-size:13px;}
  .search-box input{
    border:0;
    background:transparent;
    outline:none;
    font-size:14px;
    color:var(--text);
    width:150px;
    font-family:inherit;
  }
  .search-box input::placeholder{color:var(--faint);}

  .btn{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    gap:8px;
    height:46px;
    padding:0 24px;
    font-size:15px;
    font-weight:600;
    font-family:inherit;
    border-radius:var(--radius-sm);
    border:1px solid transparent;
    cursor:pointer;
    text-align:center;
    transition:background .2s ease,color .2s ease,border-color .2s ease,transform .15s ease,box-shadow .2s ease;
  }
  .btn:active{transform:translateY(1px);}
  .btn-primary{
    background:var(--copper);
    color:#FFFDF8;
    box-shadow:0 6px 18px rgba(166,106,63,.22);
  }
  .btn-primary:hover{background:var(--copper-dark);color:#FFFDF8;transform:translateY(-1px);}
  .btn-ghost{
    background:transparent;
    color:var(--ink);
    border-color:var(--ink);
  }
  .btn-ghost:hover{background:var(--paper-2);border-color:var(--copper);color:var(--ink);}
  .btn-light{
    background:var(--paper);
    color:var(--ink);
    border-color:var(--line);
  }
  .btn-light:hover{background:#fff;border-color:var(--copper);}
  .btn-sm{height:40px;padding:0 18px;font-size:14px;}
  .btn-block{width:100%;}

  .nav-toggle{
    display:none;
    width:42px;height:42px;
    align-items:center;justify-content:center;
    background:var(--paper);
    border:1px solid var(--line);
    border-radius:10px;
    color:var(--ink);
    cursor:pointer;
    font-size:16px;
  }

  /* ============ Hero ============ */
  .hero{
    position:relative;
    overflow:hidden;
    background-color:var(--ink);
    background-image:linear-gradient(105deg,rgba(16,42,42,.92) 0%,rgba(22,59,54,.78) 55%,rgba(22,59,54,.62) 100%),
      url('/assets/images/backpic/back-2.webp');
    background-size:cover;
    background-position:center;
    color:var(--paper);
    padding:76px 0 72px;
  }
  .hero::after{
    content:"";
    position:absolute;
    inset:0;
    background-image:repeating-linear-gradient(135deg,rgba(247,242,232,.055) 0 1px,transparent 1px 16px);
    opacity:.7;
    pointer-events:none;
  }
  .hero .container{position:relative;z-index:2;}
  .breadcrumb{
    display:flex;
    flex-wrap:wrap;
    align-items:center;
    gap:8px;
    font-size:13px;
    color:rgba(247,242,232,.68);
    margin-bottom:22px;
  }
  .breadcrumb a{color:rgba(247,242,232,.78);}
  .breadcrumb a:hover{color:#fff;}
  .breadcrumb span.sep{opacity:.5;}
  .breadcrumb .current{color:#E9C79B;}
  .hero h1{
    color:#FFFDF8;
    font-size:46px;
    line-height:1.24;
    margin-bottom:18px;
    letter-spacing:.02em;
  }
  .hero-sub{
    max-width:640px;
    font-size:17px;
    line-height:1.9;
    color:rgba(247,242,232,.86);
    margin-bottom:30px;
  }
  .hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:44px;}
  .hero-actions .btn-primary{background:var(--copper);}
  .hero-actions .btn-outline{
    background:transparent;
    border-color:rgba(247,242,232,.55);
    color:#FFFDF8;
  }
  .hero-actions .btn-outline:hover{background:rgba(247,242,232,.12);border-color:#FFFDF8;color:#FFFDF8;}
  .hero-facts{
    display:grid;
    grid-template-columns:repeat(3,minmax(0,1fr));
    gap:16px;
    max-width:820px;
  }
  .hero-fact{
    background:rgba(247,242,232,.08);
    border:1px solid rgba(247,242,232,.2);
    border-radius:var(--radius);
    padding:18px 20px;
  }
  .hero-fact strong{
    display:block;
    font-family:var(--font-serif);
    font-size:24px;
    color:#FFFDF8;
    margin-bottom:4px;
    letter-spacing:.02em;
  }
  .hero-fact span{font-size:13px;color:rgba(247,242,232,.76);line-height:1.7;display:block;}

  /* ============ 场景锚点 chips ============ */
  .chip-bar{
    display:flex;
    flex-wrap:wrap;
    gap:10px;
    padding:22px 0;
    border-bottom:1px solid var(--line);
    background:var(--card);
  }
  .chip{
    display:inline-flex;
    align-items:center;
    gap:8px;
    height:36px;
    padding:0 16px;
    font-size:14px;
    color:var(--ink);
    background:var(--paper);
    border:1px solid var(--line);
    border-radius:999px;
    transition:all .2s ease;
  }
  .chip i{font-size:12px;color:var(--copper);}
  .chip:hover{background:#fff;border-color:var(--copper);color:var(--copper);transform:translateY(-1px);}

  /* ============ 场景矩阵 ============ */
  .scene-grid{
    display:grid;
    grid-template-columns:repeat(6,1fr);
    gap:24px;
  }
  .scene-card{
    grid-column:span 3;
    background:var(--card);
    border:1px solid var(--line);
    border-radius:var(--radius-lg);
    padding:28px;
    display:flex;
    flex-direction:column;
    transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease;
  }
  .scene-card:hover{
    transform:translateY(-3px);
    border-color:var(--copper);
    box-shadow:var(--shadow);
  }
  .scene-card--wide{grid-column:span 4;}
  .scene-card--narrow{grid-column:span 2;}
  .scene-card--half{grid-column:span 3;}
  .scene-card .tag{
    align-self:flex-start;
    display:inline-block;
    padding:3px 12px;
    font-size:12px;
    letter-spacing:.06em;
    color:var(--copper);
    background:rgba(166,106,63,.1);
    border-radius:999px;
    margin-bottom:16px;
  }
  .scene-card h3{font-size:22px;margin-bottom:10px;}
  .scene-card .scene-for{
    font-size:13px;
    color:var(--faint);
    margin-bottom:12px;
  }
  .scene-card .scene-for strong{color:var(--muted);font-weight:600;}
  .scene-card p{color:var(--muted);font-size:15px;}
  .scene-card .scene-media{
    margin-top:20px;
    border-radius:var(--radius);
    overflow:hidden;
    border:1px solid var(--line);
    background:var(--paper-2);
    aspect-ratio:16/9;
  }
  .scene-card .scene-media img{width:100%;height:100%;object-fit:cover;}
  .scene-card .scene-link{
    margin-top:18px;
    font-size:14px;
    font-weight:600;
    color:var(--copper);
    display:inline-flex;
    align-items:center;
    gap:6px;
  }
  .scene-card .scene-link:hover{color:var(--copper-dark);text-decoration:underline;text-underline-offset:4px;}

  /* ============ 能力模块横向编号列表 ============ */
  .cap-list{
    border-top:1px solid var(--line);
  }
  .cap-item{
    display:grid;
    grid-template-columns:88px minmax(0,1.05fr) minmax(0,1.35fr);
    gap:28px;
    align-items:start;
    padding:30px 0;
    border-bottom:1px solid var(--line);
    transition:background .2s ease;
  }
  .cap-item:hover{background:rgba(239,232,218,.5);}
  .cap-num{
    font-family:var(--font-serif);
    font-size:34px;
    color:var(--copper);
    line-height:1;
    letter-spacing:.04em;
  }
  .cap-item h3{font-size:21px;margin-bottom:6px;}
  .cap-item .cap-tag{font-size:13px;color:var(--faint);}
  .cap-item p{color:var(--muted);font-size:15px;}

  /* ============ 流程 ============ */
  .steps{
    display:grid;
    grid-template-columns:repeat(4,minmax(0,1fr));
    gap:20px;
    counter-reset:step;
  }
  .step{
    position:relative;
    background:var(--card);
    border:1px solid var(--line);
    border-radius:var(--radius);
    padding:26px 22px 24px;
    transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
  }
  .step:hover{transform:translateY(-2px);border-color:var(--copper);box-shadow:var(--shadow-sm);}
  .step-dot{
    width:38px;height:38px;
    display:flex;align-items:center;justify-content:center;
    border-radius:10px;
    background:rgba(22,59,54,.08);
    color:var(--ink);
    font-family:var(--font-serif);
    font-size:16px;
    margin-bottom:16px;
  }
  .step h3{font-size:18px;margin-bottom:8px;}
  .step p{font-size:14px;color:var(--muted);}
  .step-time{
    display:block;
    margin-top:14px;
    font-size:12px;
    color:var(--faint);
    padding-top:12px;
    border-top:1px dashed var(--line);
  }

  /* ============ 案例 ============ */
  .case-grid{
    display:grid;
    grid-template-columns:repeat(2,minmax(0,1fr));
    gap:24px;
  }
  .case-card{
    background:var(--card);
    border:1px solid var(--line);
    border-radius:var(--radius-lg);
    overflow:hidden;
    display:flex;
    flex-direction:column;
    transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease;
  }
  .case-card:hover{transform:translateY(-3px);border-color:var(--copper);box-shadow:var(--shadow);}
  .case-media{
    aspect-ratio:16/9;
    background:var(--paper-2);
    border-bottom:1px solid var(--line);
  }
  .case-media img{width:100%;height:100%;object-fit:cover;}
  .case-body{padding:26px 26px 28px;flex:1;display:flex;flex-direction:column;}
  .case-body .tag{
    align-self:flex-start;
    padding:3px 12px;
    font-size:12px;
    color:var(--ink);
    background:var(--paper-2);
    border-radius:999px;
    margin-bottom:14px;
  }
  .case-body h3{font-size:21px;margin-bottom:10px;}
  .case-body p{color:var(--muted);font-size:15px;}
  .case-meta{
    margin-top:auto;
    padding-top:18px;
    display:flex;
    flex-wrap:wrap;
    gap:10px;
  }
  .case-meta span{
    font-size:12px;
    color:var(--muted);
    background:var(--paper);
    border:1px solid var(--line);
    border-radius:999px;
    padding:4px 12px;
  }

  /* ============ FAQ ============ */
  .faq-layout{
    display:grid;
    grid-template-columns:minmax(0,.85fr) minmax(0,1.4fr);
    gap:56px;
    align-items:start;
  }
  .faq-aside h2{font-size:32px;margin-bottom:16px;}
  .faq-aside p{color:var(--muted);font-size:15px;}
  .faq-aside .faq-note{
    margin-top:24px;
    padding:20px;
    background:var(--card);
    border:1px solid var(--line);
    border-radius:var(--radius);
    font-size:14px;
    color:var(--muted);
  }
  .faq-list{border-top:1px solid var(--line);}
  .faq-item{border-bottom:1px solid var(--line);}
  .faq-item summary{
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:16px;
    padding:22px 4px;
    min-height:64px;
    font-family:var(--font-serif);
    font-size:17px;
    color:var(--ink);
    cursor:pointer;
    list-style:none;
    transition:color .2s ease;
  }
  .faq-item summary::-webkit-details-marker{display:none;}
  .faq-item summary:hover{color:var(--copper);}
  .faq-item summary .faq-icon{
    flex-shrink:0;
    width:26px;height:26px;
    display:flex;align-items:center;justify-content:center;
    border:1px solid var(--line);
    border-radius:50%;
    font-size:13px;
    color:var(--copper);
    transition:transform .25s ease,background .2s ease,color .2s ease;
  }
  .faq-item[open] summary{color:var(--copper);}
  .faq-item[open] summary .faq-icon{
    background:var(--copper);
    color:#FFFDF8;
    border-color:var(--copper);
    transform:rotate(45deg);
  }
  .faq-answer{
    padding:0 4px 24px;
    color:var(--muted);
    font-size:15px;
    line-height:1.9;
  }

  /* ============ 最终 CTA ============ */
  .cta-band{
    background:linear-gradient(135deg,var(--ink-deep) 0%,var(--ink) 100%);
    color:var(--paper);
    padding:76px 0;
    position:relative;
    overflow:hidden;
  }
  .cta-band::before{
    content:"";
    position:absolute;
    right:-80px;top:-60px;
    width:340px;height:340px;
    border:1px solid rgba(247,242,232,.14);
    border-radius:50%;
    pointer-events:none;
  }
  .cta-band::after{
    content:"";
    position:absolute;
    right:40px;bottom:-120px;
    width:240px;height:240px;
    border:1px solid rgba(247,242,232,.1);
    border-radius:50%;
    pointer-events:none;
  }
  .cta-inner{
    position:relative;
    z-index:2;
    display:grid;
    grid-template-columns:minmax(0,1fr) minmax(0,.95fr);
    gap:56px;
    align-items:start;
  }
  .cta-inner h2{color:#FFFDF8;font-size:32px;margin-bottom:16px;}
  .cta-inner p{color:rgba(247,242,232,.82);font-size:15px;}
  .cta-points{margin-top:26px;display:grid;gap:12px;}
  .cta-points li{
    display:flex;
    gap:10px;
    font-size:14px;
    color:rgba(247,242,232,.84);
  }
  .cta-points i{color:#E9C79B;font-size:13px;margin-top:5px;}

  .cta-form{
    background:var(--card);
    border-radius:var(--radius-lg);
    padding:28px;
    box-shadow:var(--shadow);
  }
  .cta-form h3{font-size:19px;margin-bottom:6px;color:var(--ink);}
  .cta-form .form-hint{font-size:13px;color:var(--faint);margin-bottom:20px;}
  .field{margin-bottom:16px;}
  .field label{
    display:block;
    font-size:14px;
    font-weight:600;
    color:var(--ink);
    margin-bottom:8px;
  }
  .field .req{color:var(--cinnabar);margin-left:2px;}
  .field input,.field select,.field textarea{
    width:100%;
    font-family:inherit;
    font-size:15px;
    color:var(--text);
    background:#fff;
    border:1px solid var(--line);
    border-radius:8px;
    padding:0 14px;
    height:44px;
    outline:none;
    transition:border-color .2s ease,box-shadow .2s ease;
  }
  .field textarea{height:auto;padding:12px 14px;min-height:96px;resize:vertical;line-height:1.7;}
  .field input:focus,.field select:focus,.field textarea:focus{
    border-color:var(--copper);
    box-shadow:0 0 0 3px rgba(194,76,61,.16);
  }
  .field input::placeholder,.field textarea::placeholder{color:var(--faint);}
  .form-note{font-size:12px;color:var(--faint);margin-top:12px;line-height:1.7;}
  .form-status{
    display:none;
    margin-top:14px;
    font-size:14px;
    color:var(--success);
    background:rgba(63,122,94,.1);
    border:1px solid rgba(63,122,94,.3);
    border-radius:8px;
    padding:10px 14px;
  }
  .form-status.is-visible{display:block;}

  /* ============ 内联 CTA ============ */
  .inline-cta{
    display:flex;
    flex-wrap:wrap;
    align-items:center;
    justify-content:space-between;
    gap:18px;
    margin-top:40px;
    padding:22px 26px;
    background:var(--card);
    border:1px solid var(--line);
    border-radius:var(--radius);
  }
  .inline-cta p{margin:0;color:var(--muted);font-size:15px;}
  .inline-cta strong{color:var(--ink);font-family:var(--font-serif);font-size:17px;display:block;margin-bottom:4px;}

  /* ============ 浮动 CTA ============ */
  .float-cta{
    position:fixed;
    right:24px;
    bottom:28px;
    z-index:90;
    display:flex;
    flex-direction:column;
    gap:10px;
    opacity:0;
    visibility:hidden;
    transform:translateY(12px);
    transition:opacity .25s ease,transform .25s ease,visibility .25s;
  }
  .float-cta.is-visible{opacity:1;visibility:visible;transform:translateY(0);}
  .float-btn{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    gap:8px;
    height:46px;
    padding:0 20px;
    border-radius:999px;
    font-size:14px;
    font-weight:600;
    box-shadow:0 8px 22px rgba(22,59,54,.18);
    transition:all .2s ease;
  }
  .float-btn--main{background:var(--copper);color:#FFFDF8;}
  .float-btn--main:hover{background:var(--copper-dark);color:#FFFDF8;transform:translateY(-2px);}
  .float-btn--top{
    background:var(--card);
    color:var(--ink);
    border:1px solid var(--line);
    height:40px;
    font-size:13px;
    display:none;
  }
  .float-btn--top.is-visible{display:inline-flex;}
  .float-btn--top:hover{border-color:var(--copper);color:var(--copper);}
  .mobile-bar{display:none;}

  /* ============ 页脚 ============ */
  .site-footer{
    background:var(--ink-deep);
    color:var(--paper);
    padding:64px 0 28px;
  }
  .footer-grid{
    display:grid;
    grid-template-columns:1.4fr 1fr 1fr 1.2fr;
    gap:40px;
    padding-bottom:40px;
    border-bottom:1px solid rgba(247,242,232,.14);
  }
  .footer-brand{
    display:flex;
    align-items:center;
    gap:10px;
    font-family:var(--font-serif);
    font-size:19px;
    font-weight:700;
    color:#FFFDF8;
    margin-bottom:16px;
    letter-spacing:.03em;
  }
  .footer-brand .brand-mark{background:rgba(247,242,232,.14);color:#FFFDF8;}
  .footer-desc{font-size:14px;color:var(--footer-muted);line-height:1.9;max-width:340px;}
  .footer-col h4{
    font-size:15px;
    color:#FFFDF8;
    margin-bottom:18px;
    font-family:var(--font-serif);
    letter-spacing:.04em;
  }
  .footer-col ul li{
    font-size:14px;
    color:var(--footer-muted);
    margin-bottom:10px;
    line-height:1.8;
  }
  .footer-col ul li a{color:var(--footer-muted);}
  .footer-col ul li a:hover{color:#E9C79B;}
  .footer-meta{font-size:13px;color:var(--footer-muted);line-height:1.9;}
  .footer-bottom{
    display:flex;
    flex-wrap:wrap;
    align-items:center;
    justify-content:space-between;
    gap:12px;
    padding-top:24px;
    font-size:13px;
    color:rgba(200,192,178,.8);
  }

  /* ============ 响应式 ============ */
  @media (max-width:1200px){
    .hero h1{font-size:40px;}
    .h2{font-size:30px;}
  }
  @media (max-width:992px){
    .search-box{display:none;}
    .main-nav{
      position:absolute;
      top:72px;
      left:0;
      right:0;
      flex-direction:column;
      align-items:stretch;
      gap:2px;
      padding:12px 24px 20px;
      background:var(--card);
      border-bottom:1px solid var(--line);
      box-shadow:var(--shadow);
      display:none;
      margin-left:0;
    }
    .main-nav.is-open{display:flex;}
    .nav-link{padding:12px 10px;font-size:16px;border-radius:8px;}
    .nav-link.is-active::after{left:10px;right:auto;width:24px;}
    .nav-toggle{display:flex;}
    .header-actions .btn-sm{display:none;}
    .section{padding:64px 0;}
    .scene-grid{gap:20px;}
    .scene-card--wide,.scene-card--narrow,.scene-card--half{grid-column:span 3;}
    .cap-item{grid-template-columns:64px minmax(0,1fr);gap:20px;}
    .cap-item p{grid-column:2;}
    .steps{grid-template-columns:repeat(2,minmax(0,1fr));}
    .faq-layout{grid-template-columns:1fr;gap:32px;}
    .cta-inner{grid-template-columns:1fr;gap:36px;}
    .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  }
  @media (max-width:768px){
    .hero{padding:52px 0 56px;}
    .hero h1{font-size:32px;}
    .hero-sub{font-size:15px;}
    .hero-facts{grid-template-columns:1fr;gap:12px;}
    .section{padding:48px 0;}
    .h2{font-size:26px;}
    .scene-grid{grid-template-columns:1fr;}
    .scene-card,.scene-card--wide,.scene-card--narrow,.scene-card--half{grid-column:span 1;}
    .steps{grid-template-columns:1fr;}
    .case-grid{grid-template-columns:1fr;}
    .cap-item{grid-template-columns:1fr;gap:10px;padding:24px 0;}
    .cap-item p{grid-column:auto;}
    .cap-num{font-size:26px;}
    .float-cta{display:none;}
    .mobile-bar{
      display:grid;
      grid-template-columns:1fr 1fr;
      gap:10px;
      position:fixed;
      left:0;right:0;bottom:0;
      z-index:95;
      padding:10px 16px calc(10px + env(safe-area-inset-bottom));
      background:rgba(255,253,248,.97);
      border-top:1px solid var(--line);
      box-shadow:0 -6px 20px rgba(22,59,54,.08);
    }
    .mobile-bar .btn{height:44px;font-size:15px;}
    body{padding-bottom:72px;}
    .footer-grid{grid-template-columns:1fr;gap:28px;}
    .footer-bottom{flex-direction:column;align-items:flex-start;}
    .inline-cta{flex-direction:column;align-items:flex-start;}
  }
  @media (max-width:480px){
    .container{padding:0 16px;}
    .brand-name{font-size:17px;}
    .hero h1{font-size:28px;}
    .h2{font-size:23px;}
    .cta-form{padding:20px;}
    .scene-card{padding:22px;}
    .case-body{padding:20px;}
    .faq-item summary{font-size:15.5px;padding:18px 2px;}
    .btn{width:100%;}
    .hero-actions .btn{width:100%;}
    .inline-cta .btn{width:100%;}
  }

/* roulang page: category3 */
:root{
  --ink:#163B36;
  --ink-2:#1E4A43;
  --copper:#A66A3F;
  --copper-deep:#8C5631;
  --cinnabar:#C24C3D;
  --paper:#F7F2E8;
  --paper-2:#EFE8DA;
  --card:#FFFDF8;
  --text:#1E2522;
  --text-2:#5E6660;
  --text-3:#8A8F88;
  --line:#DDD3C3;
  --footer-bg:#102A2A;
  --footer-text:#C8C0B2;
  --ok:#3F7A5E;
  --warn:#B98332;
  --err:#B8453A;
  --r-s:8px;
  --r-m:12px;
  --r-l:16px;
  --r-xl:18px;
  --shadow:0 10px 30px rgba(22,59,54,.08);
  --shadow-sm:0 2px 10px rgba(22,59,54,.06);
  --serif:"Source Han Serif SC","Noto Serif SC","Songti SC",Georgia,serif;
  --sans:"PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
  --maxw:1200px;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--sans);
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:var(--ink);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--copper)}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
:focus-visible{outline:2px solid var(--cinnabar);outline-offset:2px;border-radius:4px}
::selection{background:rgba(166,106,63,.24)}

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

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:var(--card);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:var(--shadow-sm)}
.header-inner{
  display:flex;
  align-items:center;
  gap:20px;
  height:72px;
}
.logo{
  display:inline-flex;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
  color:var(--ink);
  font-family:var(--serif);
  font-size:19px;
  font-weight:700;
  letter-spacing:.02em;
}
.logo:hover{color:var(--ink)}
.brand-mark{
  width:34px;
  height:34px;
  border-radius:10px;
  background:var(--ink);
  color:var(--paper);
  display:grid;
  place-items:center;
  flex:0 0 auto;
}
.main-nav{
  display:flex;
  align-items:center;
  justify-content:center;
  gap:2px;
  flex:1 1 auto;
}
.nav-link{
  position:relative;
  padding:8px 12px;
  font-size:15px;
  color:var(--text-2);
  border-radius:var(--r-s);
  white-space:nowrap;
  transition:color .2s ease,background .2s ease;
}
.nav-link:hover{color:var(--ink);background:var(--paper-2)}
.nav-link.is-active{color:var(--copper);font-weight:600}
.nav-link.is-active::after{
  content:"";
  position:absolute;
  left:12px;
  right:12px;
  bottom:2px;
  height:2px;
  border-radius:2px;
  background:var(--copper);
}
.header-tools{
  display:flex;
  align-items:center;
  gap:12px;
  flex:0 0 auto;
}
.search-box{
  display:flex;
  align-items:center;
  gap:8px;
  height:40px;
  width:212px;
  padding:0 14px;
  border:1px solid var(--line);
  border-radius:999px;
  background:var(--paper);
  color:var(--text-3);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.search-box:focus-within{
  border-color:var(--copper);
  box-shadow:0 0 0 3px rgba(194,76,61,.16);
}
.search-box svg{flex:0 0 auto}
.search-box input{
  border:0;
  background:transparent;
  outline:none;
  width:100%;
  font-size:14px;
  color:var(--text);
}
.search-box input::placeholder{color:var(--text-3)}
.nav-toggle{
  display:none;
  width:40px;
  height:40px;
  padding:0;
  border:1px solid var(--line);
  border-radius:10px;
  background:var(--card);
  cursor:pointer;
  place-items:center;
  transition:border-color .2s ease;
}
.nav-toggle:hover{border-color:var(--copper)}
.nav-toggle span{
  display:block;
  width:18px;
  height:2px;
  margin:3px auto;
  border-radius:2px;
  background:var(--ink);
}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:46px;
  padding:0 22px;
  border:1px solid transparent;
  border-radius:10px;
  font-size:15px;
  font-weight:600;
  line-height:1;
  cursor:pointer;
  text-align:center;
  transition:background .2s ease,border-color .2s ease,color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.btn-primary{background:var(--copper);color:#FFF8EF}
.btn-primary:hover{
  background:var(--copper-deep);
  color:#FFF8EF;
  transform:translateY(-1px);
  box-shadow:0 8px 20px rgba(166,106,63,.26);
}
.btn-primary:active{transform:translateY(0);box-shadow:none}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--ink)}
.btn-ghost:hover{background:var(--paper-2);border-color:var(--copper);color:var(--ink)}
.btn-sm{height:38px;padding:0 16px;font-size:14px;border-radius:var(--r-s)}
.btn-block{width:100%}
.btn:disabled,.btn[aria-disabled="true"]{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none}
.link-arrow{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14px;
  font-weight:600;
  color:var(--copper);
}
.link-arrow:hover{color:var(--copper-deep);text-decoration:underline;text-underline-offset:3px}

/* ============ 徽章 / 标签 ============ */
.tag{
  display:inline-flex;
  align-items:center;
  height:26px;
  padding:0 12px;
  border:1px solid rgba(166,106,63,.22);
  border-radius:999px;
  background:var(--paper-2);
  color:var(--copper);
  font-size:13px;
  font-weight:600;
  letter-spacing:.04em;
}

/* ============ Hero ============ */
.hero{
  position:relative;
  overflow:hidden;
  background:var(--ink);
  padding:56px 0 76px;
}
.hero-bg{
  position:absolute;
  inset:0;
  background-size:cover;
  background-position:center;
  opacity:.3;
}
.hero::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(150deg,rgba(16,42,42,.9) 0%,rgba(22,59,54,.94) 100%);
}
.hero-inner{
  position:relative;
  z-index:2;
  display:grid;
  grid-template-columns:minmax(0,1.45fr) minmax(0,1fr);
  gap:52px;
  align-items:center;
}
.breadcrumb{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:13.5px;
  color:rgba(247,242,232,.6);
  margin-bottom:22px;
}
.breadcrumb a{color:rgba(247,242,232,.72)}
.breadcrumb a:hover{color:#F0D9BC}
.breadcrumb .sep{color:rgba(247,242,232,.35)}
.breadcrumb .current{color:#E7C9A8}
.eyebrow{
  display:inline-block;
  font-size:13px;
  letter-spacing:.2em;
  color:#E7C9A8;
  margin-bottom:10px;
}
.hero h1{
  font-family:var(--serif);
  font-size:clamp(30px,4vw,46px);
  font-weight:700;
  line-height:1.26;
  letter-spacing:.02em;
  color:#FBF6EC;
}
.hero-sub{
  margin-top:18px;
  max-width:34em;
  font-size:17px;
  line-height:1.85;
  color:rgba(247,242,232,.82);
}
.hero-actions{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  margin-top:30px;
}
.hero .btn-ghost{
  color:#F7F2E8;
  border-color:rgba(247,242,232,.42);
}
.hero .btn-ghost:hover{
  background:rgba(247,242,232,.12);
  border-color:rgba(247,242,232,.7);
  color:#FBF6EC;
}
.hero-tags{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:28px;
}
.hero-tags li{
  padding:4px 14px;
  border:1px solid rgba(247,242,232,.28);
  border-radius:999px;
  font-size:13px;
  color:rgba(247,242,232,.8);
}
.hero-card{
  background:var(--card);
  border-radius:var(--r-xl);
  padding:28px;
  box-shadow:var(--shadow);
}
.hero-card-title{
  font-family:var(--serif);
  font-size:18px;
  font-weight:700;
  color:var(--ink);
  margin-bottom:6px;
}
.hero-card-sub{
  font-size:13.5px;
  color:var(--text-3);
  margin-bottom:6px;
}
.fact-list li{
  display:flex;
  align-items:baseline;
  justify-content:space-between;
  gap:14px;
  padding:12px 0;
  border-bottom:1px dashed var(--line);
  font-size:14px;
}
.fact-list li:last-child{border-bottom:0}
.fact-list span{color:var(--text-2)}
.fact-list strong{color:var(--ink);font-weight:600;text-align:right}
.hero-card .link-arrow{margin-top:16px}

/* ============ 板块通用 ============ */
.section{padding:88px 0}
.section--alt{background:var(--paper-2)}
.section-head{max-width:720px;margin-bottom:44px}
.section-head h2{
  font-family:var(--serif);
  font-size:clamp(26px,3vw,34px);
  font-weight:700;
  line-height:1.32;
  letter-spacing:.02em;
  color:var(--ink);
  margin:14px 0 12px;
}
.section-head p{color:var(--text-2);font-size:16px}
.section-foot{margin-top:36px;display:flex;flex-wrap:wrap;gap:14px}

/* ============ 承诺数据带 ============ */
.stat-band{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-l);
  overflow:hidden;
  box-shadow:var(--shadow-sm);
}
.stat-item{
  padding:30px 24px;
  border-right:1px solid var(--line);
  transition:background .2s ease;
}
.stat-item:last-child{border-right:0}
.stat-item:hover{background:rgba(239,232,218,.45)}
.stat-num{
  font-family:var(--serif);
  font-size:28px;
  font-weight:700;
  color:var(--copper);
  line-height:1.2;
}
.stat-label{margin-top:8px;font-size:14px;color:var(--text-2)}
.band-note{
  margin-top:16px;
  font-size:13px;
  color:var(--text-3);
}

/* ============ 服务流程 ============ */
.flow{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:20px;
}
.flow-step{
  position:relative;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-l);
  padding:26px 22px;
  transition:border-color .22s ease,transform .22s ease,box-shadow .22s ease;
}
.flow-step:hover{
  border-color:var(--copper);
  transform:translateY(-2px);
  box-shadow:var(--shadow);
}
.step-index{
  width:38px;
  height:38px;
  margin-bottom:16px;
  border-radius:10px;
  background:rgba(22,59,54,.08);
  color:var(--ink);
  font-family:var(--serif);
  font-size:16px;
  font-weight:700;
  display:grid;
  place-items:center;
}
.flow-step h3{
  font-family:var(--serif);
  font-size:18px;
  font-weight:700;
  color:var(--ink);
  margin-bottom:8px;
}
.flow-step p{font-size:14.5px;color:var(--text-2);line-height:1.8}

/* ============ 响应级别表 ============ */
.table-wrap{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-l);
  overflow:hidden;
  box-shadow:var(--shadow-sm);
}
.resp-table{
  width:100%;
  border-collapse:collapse;
  font-size:15px;
}
.resp-table thead th{
  background:var(--ink);
  color:#F2EDE1;
  text-align:left;
  padding:16px 22px;
  font-size:14.5px;
  font-weight:600;
  letter-spacing:.03em;
  white-space:nowrap;
}
.resp-table tbody td{
  padding:16px 22px;
  border-top:1px solid var(--line);
  color:var(--text-2);
  vertical-align:top;
  line-height:1.8;
}
.resp-table tbody tr:nth-child(even){background:rgba(239,232,218,.5)}
.resp-table tbody tr:hover{background:rgba(239,232,218,.85)}
.resp-table tbody td:first-child{color:var(--ink);font-weight:600}

/* ============ 服务范围 ============ */
.scope-grid{
  display:grid;
  grid-template-columns:1.25fr 1fr;
  gap:24px;
  align-items:stretch;
}
.scope-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-l);
  padding:26px;
  transition:border-color .22s ease,transform .22s ease,box-shadow .22s ease;
}
.scope-card:hover{
  border-color:var(--copper);
  transform:translateY(-2px);
  box-shadow:var(--shadow);
}
.scope-card h3{
  font-family:var(--serif);
  font-size:20px;
  font-weight:700;
  color:var(--ink);
  margin:12px 0 10px;
}
.scope-card p{font-size:15px;color:var(--text-2);line-height:1.85}
.scope-card--feature{
  grid-row:span 2;
  padding:0;
  overflow:hidden;
  display:flex;
  flex-direction:column;
}
.scope-card--feature img{
  width:100%;
  height:228px;
  object-fit:cover;
}
.scope-card--feature .scope-body{
  padding:26px;
  display:flex;
  flex-direction:column;
  flex:1 1 auto;
}
.scope-card--feature .scope-body .link-arrow{margin-top:16px}
.scope-strip{
  margin-top:24px;
  display:flex;
  align-items:center;
  gap:26px;
  flex-wrap:wrap;
  background:var(--card);
  border:1px solid var(--line);
  border-left:4px solid var(--copper);
  border-radius:var(--r-l);
  padding:24px 28px;
}
.scope-strip h3{
  font-family:var(--serif);
  font-size:19px;
  font-weight:700;
  color:var(--ink);
  flex:0 0 auto;
}
.scope-strip p{font-size:15px;color:var(--text-2);flex:1 1 320px}
.scope-strip .link-arrow{flex:0 0 auto}

/* ============ FAQ ============ */
.faq-layout{
  display:grid;
  grid-template-columns:.82fr 1.4fr;
  gap:52px;
  align-items:start;
}
.faq-intro h2{
  font-family:var(--serif);
  font-size:clamp(26px,3vw,34px);
  font-weight:700;
  line-height:1.32;
  color:var(--ink);
  margin:14px 0 12px;
}
.faq-intro p{color:var(--text-2);font-size:15.5px;margin-bottom:22px}
.faq-list{border-top:1px solid var(--line)}
.faq-item{
  padding:0 18px;
  border-bottom:1px solid var(--line);
  transition:background .2s ease;
}
.faq-item summary{
  position:relative;
  list-style:none;
  cursor:pointer;
  padding:20px 44px 20px 0;
  font-size:16.5px;
  font-weight:600;
  color:var(--ink);
  line-height:1.6;
  transition:color .2s ease;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--copper)}
.faq-item summary::after{
  content:"+";
  position:absolute;
  right:6px;
  top:50%;
  transform:translateY(-50%);
  font-size:22px;
  line-height:1;
  color:var(--copper);
  transition:transform .2s ease;
}
.faq-item[open] summary{color:var(--copper)}
.faq-item[open] summary::after{content:"–"}
.faq-item[open]{
  background:rgba(239,232,218,.62);
  border-radius:var(--r-m);
  border-bottom-color:transparent;
}
.faq-a{
  padding:0 12px 20px 0;
  font-size:15px;
  color:var(--text-2);
  line-height:1.85;
}

/* ============ CTA + 表单 ============ */
.cta-band{
  position:relative;
  overflow:hidden;
  background:var(--footer-bg);
  padding:80px 0 84px;
}
.cta-band::before{
  content:"";
  position:absolute;
  right:-60px;
  top:-60px;
  width:340px;
  height:340px;
  border:1px solid rgba(200,192,178,.16);
  border-radius:50%;
}
.cta-inner{
  position:relative;
  z-index:2;
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:56px;
  align-items:center;
}
.cta-copy h2{
  font-family:var(--serif);
  font-size:clamp(26px,3vw,34px);
  font-weight:700;
  line-height:1.32;
  color:#F5F0E4;
  margin:14px 0 14px;
}
.cta-copy p{color:rgba(200,192,178,.92);font-size:15.5px;max-width:30em}
.cta-points{
  margin-top:24px;
  display:grid;
  gap:10px;
  font-size:14.5px;
  color:rgba(200,192,178,.92);
}
.cta-points li{
  display:flex;
  align-items:flex-start;
  gap:10px;
}
.cta-points li::before{
  content:"";
  width:6px;
  height:6px;
  margin-top:9px;
  border-radius:50%;
  background:var(--copper);
  flex:0 0 auto;
}
.form-card{
  background:var(--card);
  border-radius:var(--r-xl);
  padding:30px;
  box-shadow:var(--shadow);
}
.form-card h3{
  font-family:var(--serif);
  font-size:20px;
  font-weight:700;
  color:var(--ink);
  margin-bottom:6px;
}
.form-card .form-sub{
  font-size:13.5px;
  color:var(--text-3);
  margin-bottom:20px;
}
.field{margin-bottom:16px}
.field label{
  display:block;
  margin-bottom:8px;
  font-size:14px;
  font-weight:600;
  color:var(--text-2);
}
.field input,
.field select,
.field textarea{
  width:100%;
  height:44px;
  padding:0 14px;
  border:1px solid var(--line);
  border-radius:var(--r-s);
  background:#FFFFFF;
  font-size:15px;
  color:var(--text);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.field textarea{
  height:96px;
  padding:12px 14px;
  line-height:1.7;
  resize:vertical;
}
.field select{appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--copper) 50%),linear-gradient(135deg,var(--copper) 50%,transparent 50%);background-position:calc(100% - 18px) 19px,calc(100% - 13px) 19px;background-size:5px 5px,5px 5px;background-repeat:no-repeat}
.field input:hover,
.field select:hover,
.field textarea:hover{border-color:#C9BCA6}
.field input:focus,
.field select:focus,
.field textarea:focus{
  outline:none;
  border-color:var(--copper);
  box-shadow:0 0 0 3px rgba(194,76,61,.16);
}
.form-note{font-size:13px;color:var(--text-3);margin-top:12px;line-height:1.7}
.form-success{
  display:none;
  margin-top:14px;
  padding:12px 14px;
  border-radius:10px;
  background:rgba(63,122,94,.12);
  color:var(--ok);
  font-size:14px;
  line-height:1.7;
}
.form-success.is-on{display:block}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--footer-bg);
  color:var(--footer-text);
  padding:64px 0 0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1.2fr;
  gap:40px;
  padding-bottom:44px;
}
.footer-brand{
  display:flex;
  align-items:center;
  gap:10px;
  margin-bottom:14px;
  color:#F5F0E4;
  font-family:var(--serif);
  font-size:18px;
  font-weight:700;
  letter-spacing:.02em;
}
.site-footer .brand-mark{
  background:rgba(245,240,228,.14);
  color:#F5F0E4;
}
.footer-col h4{
  font-size:15px;
  font-weight:600;
  color:#F5F0E4;
  margin-bottom:16px;
}
.footer-col ul{
  display:grid;
  gap:10px;
  font-size:14px;
}
.footer-col a{color:var(--footer-text)}
.footer-col a:hover{color:var(--copper)}
.footer-desc,
.footer-meta{
  font-size:14px;
  line-height:1.85;
  color:var(--footer-text);
  max-width:32em;
}
.footer-bottom{
  border-top:1px solid rgba(200,192,178,.2);
  padding:20px 0;
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  gap:12px;
  font-size:13px;
  color:rgba(200,192,178,.75);
}

/* ============ 浮动 CTA ============ */
.float-cta{
  position:fixed;
  right:24px;
  bottom:24px;
  z-index:50;
  display:flex;
  flex-direction:column;
  gap:10px;
  align-items:flex-end;
}
.float-cta .btn{box-shadow:var(--shadow)}
.back-top{
  height:40px;
  padding:0 16px;
  font-size:13.5px;
  border-radius:999px;
  background:var(--card);
  color:var(--ink);
  border:1px solid var(--line);
  opacity:0;
  visibility:hidden;
  transform:translateY(8px);
  transition:opacity .25s ease,transform .25s ease,visibility .25s ease,border-color .2s ease;
}
.back-top.is-on{opacity:1;visibility:visible;transform:translateY(0)}
.back-top:hover{border-color:var(--copper);color:var(--copper)}
.mobile-bar{
  display:none;
  position:fixed;
  left:0;
  right:0;
  bottom:0;
  z-index:70;
  gap:10px;
  padding:10px 12px;
  background:var(--card);
  border-top:1px solid var(--line);
  box-shadow:0 -6px 20px rgba(22,59,54,.08);
}
.mobile-bar .btn{flex:1 1 0}

/* ============ 响应式 ============ */
@media (max-width:1200px){
  .header-inner{gap:14px}
  .search-box{width:180px}
  .nav-link{padding:8px 9px;font-size:14.5px}
}

@media (max-width:992px){
  .section{padding:72px 0}
  .hero{padding:44px 0 60px}
  .hero-inner{grid-template-columns:1fr;gap:36px}
  .hero-sub{max-width:100%}
  .search-box{display:none}
  .nav-toggle{display:grid}
  .main-nav{
    position:absolute;
    top:72px;
    left:0;
    right:0;
    display:none;
    flex-direction:column;
    align-items:stretch;
    justify-content:flex-start;
    gap:4px;
    padding:12px 16px 16px;
    background:var(--card);
    border-bottom:1px solid var(--line);
    box-shadow:var(--shadow);
  }
  .main-nav.is-open{display:flex}
  .nav-link{padding:12px 14px;font-size:15px}
  .nav-link.is-active::after{left:14px;right:auto;width:20px;bottom:8px}
  .stat-band{grid-template-columns:repeat(2,minmax(0,1fr))}
  .stat-item:nth-child(2){border-right:0}
  .stat-item:nth-child(1),
  .stat-item:nth-child(2){border-bottom:1px solid var(--line)}
  .flow{grid-template-columns:repeat(2,minmax(0,1fr))}
  .scope-grid{grid-template-columns:1fr}
  .scope-card--feature{grid-row:auto}
  .faq-layout{grid-template-columns:1fr;gap:32px}
  .cta-inner{grid-template-columns:1fr;gap:36px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}

@media (max-width:768px){
  .container{padding:0 18px}
  .section{padding:56px 0}
  .section-head{margin-bottom:30px}
  .header-inner{height:64px}
  .logo{font-size:17px}
  .brand-mark{width:30px;height:30px;border-radius:9px}
  .main-nav{top:64px}
  .header-cta{height:34px;padding:0 12px;font-size:13.5px}
  .hero h1{font-size:30px}
  .hero-sub{font-size:15.5px}
  .hero-actions .btn{flex:1 1 160px}
  .hero-card{padding:22px}
  .stat-band{grid-template-columns:1fr}
  .stat-item{border-right:0;border-bottom:1px solid var(--line);padding:22px 20px}
  .stat-item:last-child{border-bottom:0}
  .flow{grid-template-columns:1fr}
  .scope-strip{padding:20px;gap:14px}
  .scope-strip .link-arrow{width:100%}
  .resp-table thead{display:none}
  .resp-table,
  .resp-table tbody,
  .resp-table tr,
  .resp-table td{display:block;width:100%}
  .resp-table tr{
    border-top:1px solid var(--line);
    padding:8px 0;
  }
  .resp-table tr:first-child{border-top:0}
  .resp-table tbody td{
    display:flex;
    gap:12px;
    border:0;
    padding:7px 20px;
    background:transparent !important;
  }
  .resp-table tbody td::before{
    content:attr(data-label);
    flex:0 0 82px;
    color:var(--text-3);
    font-size:13px;
    font-weight:600;
  }
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:32px}
  .footer-bottom{flex-direction:column;gap:6px}
  .form-card{padding:24px}
  .mobile-bar{display:flex}
  .float-cta{display:none}
  body{padding-bottom:78px}
  .cta-band{padding:56px 0 60px}
}

@media (max-width:480px){
  .hero h1{font-size:26px}
  .hero-tags li{font-size:12px;padding:3px 11px}
  .btn{height:44px;padding:0 18px;font-size:14.5px}
  .btn-sm{height:36px;padding:0 14px}
  .header-cta{display:none}
  .fact-list li{flex-direction:column;gap:2px;align-items:flex-start}
  .fact-list strong{text-align:left}
  .scope-card{padding:20px}
  .scope-card--feature img{height:180px}
  .scope-card--feature .scope-body{padding:20px}
  .faq-item{padding:0 14px}
  .faq-item summary{font-size:15.5px;padding:18px 38px 18px 0}
  .field input,.field select,.field textarea{font-size:15px}
  .footer-col ul{font-size:13.5px}
}

/* roulang page: category4 */
:root{
  --ink:#163B36;
  --ink-deep:#102A2A;
  --copper:#A66A3F;
  --copper-dark:#8C5631;
  --copper-light:#D9A377;
  --cinnabar:#C24C3D;
  --paper:#F7F2E8;
  --paper-2:#EFE8DA;
  --card:#FFFDF8;
  --text:#1E2522;
  --muted:#5E6660;
  --soft:#8A8F88;
  --line:#DDD3C3;
  --footer-text:#C8C0B2;
  --success:#3F7A5E;
  --warn:#B98332;
  --radius-s:10px;
  --radius-m:14px;
  --radius-l:18px;
  --shadow-s:0 6px 18px rgba(22,59,54,.06);
  --shadow-m:0 10px 30px rgba(22,59,54,.08);
  --shadow-l:0 20px 44px rgba(22,59,54,.12);
  --font-serif:"Source Han Serif SC","Noto Serif SC","Songti SC","STSong",serif;
  --font-sans:"PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
  --sec-gap:96px;
  --container:1200px;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--ink);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--copper);}
h1,h2,h3,h4{font-family:var(--font-serif);color:var(--ink);line-height:1.28;letter-spacing:.02em;margin:0;font-weight:600;}
p{margin:0 0 14px;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;cursor:pointer;}
input,textarea,select{font-family:inherit;font-size:15px;}
:focus-visible{outline:2px solid var(--cinnabar);outline-offset:3px;border-radius:6px;}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
.section{padding:var(--sec-gap) 0;}
.section--tight{padding:64px 0;}
.section--alt{background:var(--paper-2);}
.section-head{max-width:760px;margin-bottom:44px;}
.section-head h2{font-size:clamp(26px,3vw,36px);margin-bottom:14px;}
.section-head p{color:var(--muted);font-size:16px;max-width:46em;margin:0;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.14em;color:var(--copper);
  text-transform:uppercase;margin-bottom:14px;font-family:var(--font-sans);
}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--copper);display:inline-block;}

/* ============ Header ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  background:var(--card);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:0 8px 24px rgba(22,59,54,.09);}
.header-inner{
  display:flex;align-items:center;gap:18px;
  height:72px;
}
.logo{
  display:flex;align-items:center;gap:10px;
  font-family:var(--font-serif);font-size:19px;font-weight:700;
  color:var(--ink);letter-spacing:.03em;white-space:nowrap;
}
.logo:hover{color:var(--ink);}
.brand-mark{
  width:34px;height:34px;flex:0 0 34px;
  display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--line);border-radius:9px;
  background:var(--paper);color:var(--copper);
  transition:transform .25s ease,border-color .25s ease;
}
.logo:hover .brand-mark{transform:translateY(-1px);border-color:var(--copper);}

.main-nav{display:flex;align-items:center;gap:2px;margin:0 auto;}
.nav-link{
  position:relative;
  padding:9px 14px;border-radius:999px;
  font-size:15px;color:var(--muted);
  transition:color .2s ease,background .2s ease;
  white-space:nowrap;
}
.nav-link:hover{color:var(--ink);background:var(--paper-2);}
.nav-link.is-active{color:var(--ink);font-weight:600;background:transparent;}
.nav-link.is-active::after{
  content:"";position:absolute;left:50%;bottom:3px;
  width:18px;height:2px;border-radius:2px;
  background:var(--copper);transform:translateX(-50%);
}
.header-actions{display:flex;align-items:center;gap:12px;}
.nav-search{
  display:flex;align-items:center;gap:8px;
  width:212px;padding:8px 14px;
  background:var(--paper-2);
  border:1px solid var(--line);border-radius:999px;
  color:var(--soft);
  transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.nav-search:focus-within{
  border-color:var(--copper);
  background:var(--card);
  box-shadow:0 0 0 3px rgba(194,76,61,.16);
}
.nav-search input{
  border:0;background:transparent;outline:none;
  width:100%;font-size:14px;color:var(--text);
}
.nav-search input::placeholder{color:var(--soft);}
.nav-toggle{
  display:none;
  width:42px;height:42px;
  border:1px solid var(--line);border-radius:10px;
  background:var(--card);color:var(--ink);
  align-items:center;justify-content:center;
}
.nav-toggle:hover{border-color:var(--copper);color:var(--copper);}

/* ============ Buttons ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 24px;border-radius:var(--radius-s);
  font-size:15px;font-weight:600;line-height:1.2;
  border:1px solid transparent;
  transition:background .2s ease,color .2s ease,border-color .2s ease,transform .16s ease,box-shadow .2s ease;
  cursor:pointer;text-align:center;
}
.btn-primary{background:var(--copper);color:var(--card);}
.btn-primary:hover{background:var(--copper-dark);color:#fff;transform:translateY(-1px);box-shadow:0 8px 20px rgba(166,106,63,.28);}
.btn-primary:active{transform:translateY(0);box-shadow:none;}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--ink);}
.btn-ghost:hover{background:var(--paper-2);border-color:var(--copper);color:var(--copper);}
.btn-light{background:var(--card);color:var(--ink);border-color:var(--card);}
.btn-light:hover{background:var(--paper-2);color:var(--ink);}
.btn-outline-light{background:transparent;color:var(--card);border-color:rgba(247,242,232,.5);}
.btn-outline-light:hover{background:rgba(247,242,232,.14);color:#fff;border-color:var(--copper-light);}
.btn-sm{padding:9px 18px;font-size:14px;}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none;}
.btn:focus-visible{outline:2px solid var(--cinnabar);outline-offset:3px;}

/* ============ Hero ============ */
.hero{
  position:relative;overflow:hidden;
  background:var(--ink-deep);
  color:var(--paper);
  padding:72px 0 76px;
}
.hero-bg{
  position:absolute;inset:0;width:100%;height:100%;
  object-fit:cover;opacity:.5;
}
.hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(104deg,rgba(16,42,42,.95) 0%,rgba(22,59,54,.86) 46%,rgba(22,59,54,.58) 100%);
}
.hero-inner{
  position:relative;z-index:2;
  display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center;
}
.breadcrumb{
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
  font-size:13.5px;color:rgba(247,242,232,.7);margin-bottom:22px;
}
.breadcrumb a{color:rgba(247,242,232,.7);}
.breadcrumb a:hover{color:var(--copper-light);}
.breadcrumb .sep{color:rgba(247,242,232,.4);}
.breadcrumb .current{color:var(--copper-light);}
.hero h1{
  font-size:clamp(30px,4.2vw,50px);
  color:var(--paper);
  margin-bottom:20px;
  letter-spacing:.02em;
}
.hero-lead{
  font-size:17px;line-height:1.9;
  color:rgba(247,242,232,.86);
  max-width:34em;margin-bottom:30px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;}
.hero-card{
  background:rgba(247,242,232,.08);
  border:1px solid rgba(247,242,232,.22);
  border-radius:var(--radius-l);
  padding:28px 26px;
  backdrop-filter:none;
}
.hero-card h3{
  font-size:18px;color:var(--paper);margin-bottom:18px;
  display:flex;align-items:center;gap:10px;
}
.hero-card h3::before{
  content:"";width:8px;height:8px;border-radius:2px;
  background:var(--copper-light);display:inline-block;transform:rotate(45deg);
}
.hero-card ul li{
  display:flex;gap:12px;
  padding:11px 0;
  border-bottom:1px dashed rgba(247,242,232,.16);
  font-size:14.5px;color:rgba(247,242,232,.86);line-height:1.7;
}
.hero-card ul li:last-child{border-bottom:0;padding-bottom:0;}
.hero-card ul li span.dot{
  flex:0 0 6px;width:6px;height:6px;border-radius:50%;
  background:var(--copper-light);margin-top:9px;
}

/* ============ Chips ============ */
.chip-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:38px;}
.chip{
  display:inline-flex;align-items:center;
  height:34px;padding:0 17px;
  border-radius:999px;
  border:1px solid var(--line);
  background:var(--card);
  color:var(--muted);
  font-size:14px;
  transition:all .2s ease;
}
.chip.is-on{background:var(--ink);border-color:var(--ink);color:var(--paper);font-weight:600;}
.chip:hover{border-color:var(--copper);color:var(--copper);}
.chip.is-on:hover{color:var(--paper);border-color:var(--ink);}

/* ============ Case grid ============ */
.case-grid{
  display:grid;
  grid-template-columns:repeat(6,1fr);
  gap:24px;
}
.case-card{
  grid-column:span 2;
  display:flex;flex-direction:column;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-m);
  overflow:hidden;
  box-shadow:var(--shadow-s);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.case-card:hover{transform:translateY(-2px);border-color:var(--copper);box-shadow:var(--shadow-m);}
.case-card.featured{grid-column:span 4;}
.case-card.tall{grid-column:span 2;}
.case-media{
  position:relative;overflow:hidden;
  aspect-ratio:16/10;
  background:var(--paper-2);
}
.case-card.featured .case-media{aspect-ratio:16/8;}
.case-media img{
  width:100%;height:100%;object-fit:cover;
  transition:transform .5s ease;
}
.case-card:hover .case-media img{transform:scale(1.03);}
.case-body{padding:24px 24px 26px;display:flex;flex-direction:column;flex:1;}
.case-tags{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:14px;}
.tag{
  display:inline-flex;align-items:center;
  height:26px;padding:0 12px;
  border-radius:999px;
  font-size:12.5px;
  background:rgba(166,106,63,.12);
  color:var(--copper-dark);
  letter-spacing:.02em;
}
.tag--ink{background:rgba(22,59,54,.09);color:var(--ink);}
.case-body h3{
  font-size:19px;margin-bottom:10px;line-height:1.45;
}
.case-card.featured .case-body h3{font-size:23px;}
.case-body p{color:var(--muted);font-size:14.5px;line-height:1.8;margin-bottom:16px;}
.case-foot{
  margin-top:auto;
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding-top:14px;border-top:1px dashed var(--line);
  font-size:13px;color:var(--soft);
}
.case-foot a{font-size:14px;font-weight:600;color:var(--ink);}
.case-foot a:hover{color:var(--copper);}
.case-note{font-size:13.5px;color:var(--soft);margin-top:28px;}

/* ============ Stat band ============ */
.stat-band{
  display:grid;grid-template-columns:repeat(4,1fr);gap:20px;
  margin-top:8px;
}
.stat{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-m);
  padding:26px 22px;
  transition:border-color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.stat:hover{border-color:var(--copper);transform:translateY(-2px);box-shadow:var(--shadow-m);}
.stat strong{
  display:block;font-family:var(--font-serif);
  font-size:24px;color:var(--copper);letter-spacing:.01em;
  line-height:1.4;margin-bottom:6px;
}
.stat span{font-size:14px;color:var(--muted);line-height:1.7;}

/* ============ Steps ============ */
.steps{
  display:grid;grid-template-columns:repeat(4,1fr);gap:22px;
  counter-reset:step;
}
.step{
  position:relative;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-m);
  padding:28px 24px 26px;
  transition:border-color .22s ease,box-shadow .22s ease,transform .22s ease;
}
.step:hover{border-color:var(--copper);box-shadow:var(--shadow-m);transform:translateY(-2px);}
.step-num{
  display:inline-flex;align-items:center;justify-content:center;
  width:38px;height:38px;border-radius:50%;
  background:rgba(166,106,63,.12);
  color:var(--copper-dark);
  font-family:var(--font-serif);font-size:16px;font-weight:700;
  margin-bottom:16px;
}
.step h3{font-size:18px;margin-bottom:10px;}
.step p{font-size:14.5px;color:var(--muted);margin:0;line-height:1.8;}

/* ============ Quotes ============ */
.quote-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.quote{
  background:var(--card);
  border:1px solid var(--line);
  border-left:3px solid var(--copper);
  border-radius:var(--radius-m);
  padding:28px 26px;
  display:flex;flex-direction:column;
  transition:transform .22s ease,box-shadow .22s ease;
}
.quote:hover{transform:translateY(-2px);box-shadow:var(--shadow-m);}
.quote p{
  font-size:15.5px;line-height:1.9;color:var(--text);
  margin-bottom:20px;flex:1;
}
.quote footer{
  font-size:13.5px;color:var(--soft);
  display:flex;align-items:center;gap:10px;
}
.quote footer::before{
  content:"";width:22px;height:1px;background:var(--line);display:inline-block;
}

/* ============ FAQ ============ */
.faq-wrap{
  display:grid;grid-template-columns:.8fr 1.2fr;gap:52px;align-items:start;
}
.faq-intro h2{font-size:clamp(26px,3vw,34px);margin-bottom:16px;}
.faq-intro p{color:var(--muted);font-size:15.5px;margin-bottom:24px;}
.faq-list{border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  min-height:60px;padding:16px 4px;
  font-family:var(--font-serif);font-size:17px;color:var(--ink);
  cursor:pointer;list-style:none;
  transition:color .2s ease;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--copper);}
.faq-item summary .plus{
  position:relative;flex:0 0 22px;width:22px;height:22px;
  border:1px solid var(--line);border-radius:50%;
  transition:transform .25s ease,border-color .25s ease,background .25s ease;
}
.faq-item summary .plus::before,
.faq-item summary .plus::after{
  content:"";position:absolute;top:50%;left:50%;
  background:var(--copper);border-radius:2px;
  transform:translate(-50%,-50%);
}
.faq-item summary .plus::before{width:10px;height:1.5px;}
.faq-item summary .plus::after{width:1.5px;height:10px;transition:opacity .2s ease;}
.faq-item[open] summary{color:var(--copper-dark);}
.faq-item[open] summary .plus{border-color:var(--copper);background:rgba(166,106,63,.1);}
.faq-item[open] summary .plus::after{opacity:0;}
.faq-answer{
  background:var(--paper-2);
  border-radius:var(--radius-s);
  padding:18px 20px;
  margin:0 0 18px;
  font-size:15px;line-height:1.9;color:var(--muted);
}

/* ============ CTA ============ */
.cta-band{
  position:relative;overflow:hidden;
  background:var(--ink-deep);
  color:var(--paper);
  padding:76px 0;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(circle at 88% 20%,rgba(166,106,63,.28),transparent 55%),
    radial-gradient(circle at 8% 92%,rgba(22,59,54,.6),transparent 60%);
  pointer-events:none;
}
.cta-inner{
  position:relative;z-index:2;
  display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center;
}
.cta-inner h2{
  color:var(--paper);font-size:clamp(26px,3.2vw,36px);margin-bottom:16px;
}
.cta-inner p{color:rgba(247,242,232,.82);font-size:16px;max-width:32em;margin-bottom:26px;}
.cta-panel{
  background:rgba(247,242,232,.08);
  border:1px solid rgba(247,242,232,.2);
  border-radius:var(--radius-l);
  padding:28px 26px;
}
.cta-panel h3{
  color:var(--paper);font-size:17px;margin-bottom:14px;
}
.cta-panel ul li{
  display:flex;gap:12px;font-size:14.5px;color:rgba(247,242,232,.85);
  padding:8px 0;line-height:1.7;
}
.cta-panel ul li::before{
  content:"";flex:0 0 6px;width:6px;height:6px;border-radius:50%;
  background:var(--copper-light);margin-top:9px;
}
.cta-panel .btn{margin-top:16px;width:100%;}

/* ============ Footer ============ */
.site-footer{
  background:var(--ink-deep);
  color:var(--footer-text);
  padding:74px 0 28px;
  font-size:14px;
}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:44px;
}
.footer-brand{
  display:flex;align-items:center;gap:10px;
  font-family:var(--font-serif);font-size:19px;font-weight:700;
  color:var(--paper);margin-bottom:16px;letter-spacing:.03em;
}
.footer-brand .brand-mark{
  border-color:rgba(200,192,178,.38);
  background:rgba(247,242,232,.06);
  color:var(--copper-light);
}
.footer-desc{color:var(--footer-text);line-height:1.9;font-size:14px;max-width:30em;}
.footer-col h4{
  color:var(--paper);font-size:15px;margin-bottom:16px;letter-spacing:.04em;
}
.footer-col ul li{
  padding:6px 0;font-size:14px;color:var(--footer-text);
}
.footer-col ul li a{color:var(--footer-text);}
.footer-col ul li a:hover{color:var(--copper-light);}
.footer-meta{color:rgba(200,192,178,.78);font-size:13.5px;line-height:1.9;}
.footer-bottom{
  margin-top:44px;padding-top:22px;
  border-top:1px solid rgba(200,192,178,.16);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(200,192,178,.7);
}

/* ============ Responsive ============ */
@media (max-width:1200px){
  :root{--container:1120px;--sec-gap:84px;}
  .nav-search{width:180px;}
  .nav-link{padding:9px 11px;font-size:14.5px;}
}
@media (max-width:992px){
  :root{--sec-gap:72px;}
  .nav-toggle{display:inline-flex;}
  .nav-search{display:none;}
  .main-nav{
    position:absolute;top:100%;left:0;right:0;
    display:none;flex-direction:column;align-items:stretch;
    margin:0;padding:12px 16px 18px;gap:4px;
    background:var(--card);
    border-bottom:1px solid var(--line);
    box-shadow:0 18px 32px rgba(22,59,54,.12);
  }
  .main-nav.is-open{display:flex;}
  .nav-link{padding:12px 14px;border-radius:10px;font-size:15px;}
  .nav-link.is-active{background:var(--paper-2);}
  .nav-link.is-active::after{left:auto;right:20px;bottom:50%;transform:translateY(50%);width:14px;}
  .header-inner{height:68px;}
  .hero-inner{grid-template-columns:1fr;gap:34px;}
  .hero{padding:60px 0 64px;}
  .faq-wrap{grid-template-columns:1fr;gap:32px;}
  .cta-inner{grid-template-columns:1fr;gap:34px;}
  .case-grid{grid-template-columns:repeat(4,1fr);gap:20px;}
  .case-card.featured{grid-column:span 4;}
  .case-card.tall{grid-column:span 2;}
  .case-card{grid-column:span 2;}
  .hero-card{padding:24px 22px;}
  .stat-band{grid-template-columns:repeat(2,1fr);}
  .steps{grid-template-columns:repeat(2,1fr);}
  .quote-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px;}
}
@media (max-width:768px){
  :root{--sec-gap:60px;}
  .container{padding:0 18px;}
  .header-inner{height:64px;gap:10px;}
  .logo{font-size:17px;}
  .brand-mark{width:30px;height:30px;flex:0 0 30px;}
  .header-actions .btn{padding:9px 16px;font-size:14px;}
  .hero{padding:48px 0 52px;}
  .hero-lead{font-size:16px;}
  .hero-actions .btn{flex:1 1 auto;min-width:140px;}
  .section-head{margin-bottom:32px;}
  .case-grid{grid-template-columns:1fr;}
  .case-card,.case-card.featured,.case-card.tall{grid-column:span 1;}
  .case-card.featured .case-media{aspect-ratio:16/10;}
  .case-card.featured .case-body h3{font-size:20px;}
  .steps{grid-template-columns:1fr;}
  .stat-band{grid-template-columns:1fr;}
  .faq-item summary{font-size:16px;}
  .footer-grid{grid-template-columns:1fr;gap:30px;}
  .site-footer{padding:56px 0 24px;}
  .cta-band{padding:58px 0;}
  .cta-panel{padding:24px 20px;}
}
@media (max-width:480px){
  body{font-size:15px;}
  .hero h1{font-size:29px;}
  .section{padding:50px 0;}
  .hero-actions{flex-direction:column;}
  .hero-actions .btn{width:100%;}
  .case-body{padding:20px 18px 22px;}
  .quote{padding:22px 20px;}
  .step{padding:22px 20px;}
  .cta-inner h2{font-size:25px;}
  .footer-bottom{flex-direction:column;gap:8px;}
}

/* roulang page: category5 */
:root{
  --ink:#163B36;
  --ink-deep:#102A2A;
  --ink-soft:#1F4A44;
  --bronze:#A66A3F;
  --bronze-dark:#8C5631;
  --bronze-light:#E0A87E;
  --cinnabar:#C24C3D;
  --paper:#F7F2E8;
  --paper-2:#EFE8DA;
  --card:#FFFDF8;
  --text:#1E2522;
  --text-2:#5E6660;
  --text-3:#8A8F88;
  --line:#DDD3C3;
  --success:#3F7A5E;
  --warn:#B98332;
  --error:#B8453A;
  --r-card:14px;
  --r-btn:9px;
  --shadow:0 10px 30px rgba(22,59,54,.08);
  --shadow-sm:0 3px 12px rgba(22,59,54,.06);
  --max:1200px;
  --serif:"Source Han Serif SC","Noto Serif SC","Songti SC","SimSun",serif;
  --sans:"PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--sans);
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
[hidden]{display:none !important;}
img{max-width:100%;display:block;}
a{color:var(--ink);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--bronze);}
button{font-family:inherit;}
h1,h2,h3,h4,h5{
  font-family:var(--serif);
  color:var(--ink);
  line-height:1.28;
  letter-spacing:.02em;
  margin:0;
  font-weight:700;
}
p{margin:0 0 14px;}
p:last-child{margin-bottom:0;}
ul,ol{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--cinnabar);outline-offset:3px;border-radius:4px;}

.container{
  width:100%;
  max-width:var(--max);
  margin:0 auto;
  padding:0 28px;
}
.section{padding:96px 0;}
.section-tight{padding:72px 0;}
.section-alt{background:var(--paper-2);}

/* ---------- header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:90;
  background:rgba(255,253,248,.97);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease,background .25s ease;
  backdrop-filter:saturate(120%);
}
.site-header.is-scrolled{box-shadow:0 6px 22px rgba(22,59,54,.09);}
.header-inner{
  display:flex;
  align-items:center;
  gap:28px;
  height:72px;
}
.logo{
  display:flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
  font-family:var(--serif);
  font-size:19px;
  font-weight:700;
  letter-spacing:.03em;
  color:var(--ink);
  white-space:nowrap;
}
.logo:hover{color:var(--ink);}
.logo-mark{
  width:34px;height:34px;
  display:inline-flex;
  align-items:center;justify-content:center;
  border-radius:9px;
  background:var(--ink);
  color:var(--paper);
  flex-shrink:0;
}
.main-nav{
  display:flex;
  align-items:center;
  gap:6px;
  flex:1;
  justify-content:center;
}
.nav-link{
  position:relative;
  display:inline-block;
  padding:8px 12px;
  font-size:15px;
  color:var(--text-2);
  border-radius:8px;
  white-space:nowrap;
  transition:color .2s ease,background .2s ease;
}
.nav-link:hover{color:var(--ink);background:var(--paper-2);}
.nav-link.is-active{color:var(--ink);font-weight:600;}
.nav-link.is-active::after{
  content:"";
  position:absolute;
  left:12px;right:12px;bottom:0;
  height:2px;
  background:var(--bronze);
  border-radius:2px;
}
.header-tools{display:flex;align-items:center;gap:14px;flex-shrink:0;}
.search-box{
  display:flex;
  align-items:center;
  gap:8px;
  height:40px;
  padding:0 16px;
  border:1px solid var(--line);
  border-radius:999px;
  background:var(--paper);
  color:var(--text-3);
  transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.search-box svg{flex-shrink:0;color:var(--text-3);}
.search-box input{
  border:0;
  background:transparent;
  outline:none;
  font-size:14px;
  width:150px;
  color:var(--text);
  font-family:inherit;
}
.search-box input::placeholder{color:var(--text-3);}
.search-box:focus-within{
  border-color:var(--bronze);
  background:var(--card);
  box-shadow:0 0 0 3px rgba(194,76,61,.22);
}
.nav-toggle{
  display:none;
  width:42px;height:42px;
  border:1px solid var(--line);
  border-radius:9px;
  background:var(--card);
  cursor:pointer;
  padding:0;
  align-items:center;
  justify-content:center;
  flex-direction:column;
  gap:5px;
}
.nav-toggle span{
  display:block;
  width:18px;height:2px;
  background:var(--ink);
  border-radius:2px;
  transition:transform .25s ease,opacity .25s ease;
}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 26px;
  border-radius:var(--r-btn);
  font-size:15px;
  font-weight:600;
  letter-spacing:.02em;
  border:1px solid transparent;
  cursor:pointer;
  transition:background .2s ease,color .2s ease,border-color .2s ease,transform .15s ease,box-shadow .2s ease;
  white-space:nowrap;
}
.btn-primary{
  background:var(--bronze);
  color:#FFFDF8;
  box-shadow:0 6px 16px rgba(166,106,63,.22);
}
.btn-primary:hover{background:var(--bronze-dark);color:#FFFDF8;transform:translateY(-1px);}
.btn-primary:active{transform:translateY(1px);box-shadow:0 3px 10px rgba(166,106,63,.2);}
.btn-primary:disabled{opacity:.45;cursor:not-allowed;transform:none;}
.btn-outline{
  background:transparent;
  color:var(--ink);
  border-color:var(--ink);
}
.btn-outline:hover{background:var(--paper-2);border-color:var(--bronze);color:var(--ink);}
.btn-ghost-light{
  background:rgba(255,253,248,.08);
  color:#F7F2E8;
  border-color:rgba(247,242,232,.5);
}
.btn-ghost-light:hover{background:rgba(255,253,248,.18);color:#FFFDF8;border-color:#F7F2E8;}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.btn-block{width:100%;}
.btn-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14px;
  font-weight:600;
  color:var(--bronze);
}
.btn-link:hover{color:var(--bronze-dark);text-decoration:underline;text-underline-offset:3px;}

/* ---------- hero ---------- */
.page-hero{
  position:relative;
  color:#F7F2E8;
  background-image:
    linear-gradient(112deg,rgba(16,42,42,.94) 0%,rgba(22,59,54,.86) 55%,rgba(22,59,54,.72) 100%),
    url('/assets/images/backpic/back-2.webp');
  background-size:cover;
  background-position:center;
  padding:72px 0 84px;
  overflow:hidden;
}
.page-hero::after{
  content:"";
  position:absolute;
  inset:0;
  background-image:repeating-linear-gradient(90deg,rgba(247,242,232,.05) 0 1px,transparent 1px 96px);
  opacity:.55;
  pointer-events:none;
}
.page-hero-inner{
  position:relative;
  z-index:2;
  display:grid;
  grid-template-columns:1.35fr .85fr;
  gap:56px;
  align-items:center;
}
.breadcrumb{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:rgba(247,242,232,.66);
  margin-bottom:18px;
}
.breadcrumb a{color:rgba(247,242,232,.8);}
.breadcrumb a:hover{color:var(--bronze-light);}
.breadcrumb .sep{color:rgba(247,242,232,.42);}
.breadcrumb .current{color:var(--bronze-light);}
.hero-eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  letter-spacing:.14em;
  color:var(--bronze-light);
  margin-bottom:16px;
}
.hero-eyebrow::before{
  content:"";
  width:26px;height:1px;
  background:var(--bronze-light);
  opacity:.8;
}
.page-hero h1{
  font-size:clamp(30px,3.6vw,50px);
  color:#FFFDF8;
  margin-bottom:20px;
  letter-spacing:.03em;
}
.hero-sub{
  font-size:16px;
  line-height:1.9;
  color:rgba(247,242,232,.86);
  max-width:34em;
  margin-bottom:28px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:30px;}
.hero-points{
  display:flex;
  flex-wrap:wrap;
  gap:12px 26px;
  font-size:14px;
  color:rgba(247,242,232,.78);
}
.hero-points li{display:flex;align-items:center;gap:8px;}
.hero-points li::before{
  content:"";
  width:5px;height:5px;
  border-radius:50%;
  background:var(--bronze-light);
  flex-shrink:0;
}
.hero-card{
  background:rgba(255,253,248,.98);
  color:var(--text);
  border-radius:18px;
  padding:30px 28px;
  box-shadow:0 20px 48px rgba(0,0,0,.22);
  border:1px solid rgba(221,211,195,.9);
}
.hero-card h2{
  font-size:19px;
  margin-bottom:6px;
}
.hero-card .card-sub{
  font-size:13px;
  color:var(--text-3);
  margin-bottom:20px;
}
.info-list{display:flex;flex-direction:column;gap:0;}
.info-list li{
  display:flex;
  justify-content:space-between;
  gap:16px;
  padding:13px 0;
  border-bottom:1px dashed var(--line);
  font-size:14px;
}
.info-list li:last-child{border-bottom:0;padding-bottom:0;}
.info-list .k{color:var(--text-2);flex-shrink:0;}
.info-list .v{color:var(--ink);font-weight:600;text-align:right;}
.hero-card .tip{
  margin-top:20px;
  padding:12px 14px;
  background:var(--paper-2);
  border-radius:10px;
  font-size:12.5px;
  line-height:1.7;
  color:var(--text-2);
}

/* ---------- section head ---------- */
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:32px;
  margin-bottom:44px;
}
.section-head .head-text{max-width:44em;}
.eyebrow{
  font-size:13px;
  letter-spacing:.14em;
  color:var(--bronze);
  margin-bottom:12px;
  display:block;
}
.section-head h2{font-size:clamp(24px,2.5vw,34px);margin-bottom:12px;}
.section-head p{color:var(--text-2);font-size:15.5px;margin:0;}

/* ---------- channel cards ---------- */
.channel-grid{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:24px;
}
.channel-card{
  position:relative;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:30px 28px;
  box-shadow:var(--shadow-sm);
  transition:border-color .22s ease,transform .22s ease,box-shadow .22s ease;
  display:flex;
  flex-direction:column;
  gap:12px;
}
.channel-card:hover{
  border-color:var(--bronze);
  transform:translateY(-2px);
  box-shadow:var(--shadow);
}
.channel-card .c-icon{
  width:44px;height:44px;
  border-radius:11px;
  background:var(--paper-2);
  color:var(--ink);
  display:inline-flex;
  align-items:center;
  justify-content:center;
}
.channel-card.is-key .c-icon{background:var(--ink);color:var(--paper);}
.channel-card h3{font-size:20px;}
.channel-card p{font-size:14.5px;color:var(--text-2);line-height:1.8;}
.channel-card .c-foot{
  margin-top:auto;
  padding-top:6px;
  font-size:13px;
  color:var(--text-3);
}
.channel-card .c-foot strong{color:var(--bronze);font-weight:600;}

/* ---------- dark strip ---------- */
.schedule{
  background:var(--ink-deep);
  color:#F7F2E8;
  border-radius:0;
}
.schedule .section-head h2{color:#FFFDF8;}
.schedule .section-head p{color:rgba(247,242,232,.74);}
.schedule .eyebrow{color:var(--bronze-light);}
.schedule-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:1px;
  background:rgba(247,242,232,.16);
  border:1px solid rgba(247,242,232,.16);
  border-radius:var(--r-card);
  overflow:hidden;
}
.schedule-item{
  background:rgba(255,253,248,.04);
  padding:30px 26px;
}
.schedule-item .num{
  font-family:var(--serif);
  font-size:30px;
  color:var(--bronze-light);
  line-height:1.2;
  margin-bottom:10px;
  letter-spacing:.02em;
}
.schedule-item h3{font-size:17px;color:#FFFDF8;margin-bottom:8px;}
.schedule-item p{font-size:14px;color:rgba(247,242,232,.76);line-height:1.8;margin:0;}
.schedule-note{
  margin-top:26px;
  font-size:13px;
  color:rgba(247,242,232,.58);
}

/* ---------- consult form ---------- */
.consult-wrap{
  display:grid;
  grid-template-columns:1fr 1.12fr;
  gap:56px;
  align-items:start;
}
.consult-aside h2{font-size:clamp(24px,2.5vw,32px);margin-bottom:16px;}
.consult-aside > p{color:var(--text-2);font-size:15.5px;line-height:1.85;}
.aside-list{margin-top:28px;display:flex;flex-direction:column;gap:18px;}
.aside-list li{
  display:flex;
  gap:14px;
  padding-bottom:18px;
  border-bottom:1px solid var(--line);
}
.aside-list li:last-child{border-bottom:0;padding-bottom:0;}
.aside-list .dot{
  width:26px;height:26px;
  border-radius:50%;
  background:var(--paper-2);
  color:var(--bronze);
  font-size:13px;
  font-weight:700;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  flex-shrink:0;
  margin-top:2px;
}
.aside-list h3{font-size:15.5px;margin-bottom:4px;}
.aside-list p{font-size:14px;color:var(--text-2);margin:0;line-height:1.75;}

.consult-form{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:18px;
  padding:34px 32px;
  box-shadow:var(--shadow);
}
.consult-form .form-title{
  font-size:18px;
  margin-bottom:6px;
}
.consult-form .form-desc{
  font-size:13.5px;
  color:var(--text-3);
  margin-bottom:24px;
}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:18px;}
.field{margin-bottom:18px;display:flex;flex-direction:column;}
.field label{
  font-size:14px;
  font-weight:600;
  color:var(--ink);
  margin-bottom:8px;
}
.field .req{color:var(--cinnabar);margin-left:2px;}
.field input,
.field select,
.field textarea{
  width:100%;
  font-family:inherit;
  font-size:15px;
  color:var(--text);
  background:var(--paper);
  border:1px solid var(--line);
  border-radius:8px;
  padding:0 14px;
  height:44px;
  transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
  appearance:none;
}
.field textarea{height:auto;padding:12px 14px;line-height:1.75;resize:vertical;min-height:112px;}
.field select{
  background-image:url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%235E6660' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
  background-repeat:no-repeat;
  background-position:right 14px center;
  padding-right:38px;
  cursor:pointer;
}
.field input::placeholder,
.field textarea::placeholder{color:var(--text-3);}
.field input:focus,
.field select:focus,
.field textarea:focus{
  outline:none;
  border-color:var(--bronze);
  background:var(--card);
  box-shadow:0 0 0 3px rgba(194,76,61,.2);
}
.field.has-error input,
.field.has-error select,
.field.has-error textarea{border-color:var(--error);}
.field-error{
  margin:6px 0 0;
  font-size:12.5px;
  color:var(--error);
}
.check{
  display:flex;
  align-items:flex-start;
  gap:10px;
  font-size:13px;
  color:var(--text-2);
  line-height:1.7;
  margin:4px 0 20px;
  cursor:pointer;
}
.check input{
  width:16px;height:16px;
  margin-top:3px;
  accent-color:var(--bronze);
  flex-shrink:0;
}
.form-note{
  font-size:12.5px;
  color:var(--text-3);
  margin:14px 0 0;
  line-height:1.7;
}
.form-success{
  margin-top:18px;
  padding:14px 16px;
  background:rgba(63,122,94,.1);
  border:1px solid rgba(63,122,94,.35);
  border-radius:10px;
  color:var(--success);
  font-size:14px;
  line-height:1.8;
}

/* ---------- map / visit ---------- */
.visit-wrap{
  display:grid;
  grid-template-columns:1.1fr .9fr;
  gap:44px;
  align-items:center;
}
.map-box{
  position:relative;
  min-height:320px;
  border-radius:var(--r-card);
  border:1px solid var(--line);
  background-color:var(--paper-2);
  background-image:
    linear-gradient(rgba(22,59,54,.07) 1px,transparent 1px),
    linear-gradient(90deg,rgba(22,59,54,.07) 1px,transparent 1px);
  background-size:44px 44px;
  overflow:hidden;
  display:flex;
  align-items:center;
  justify-content:center;
}
.map-box .pin{
  position:relative;
  display:flex;
  flex-direction:column;
  align-items:center;
  gap:10px;
  text-align:center;
  padding:20px 24px;
  background:rgba(255,253,248,.94);
  border:1px solid var(--line);
  border-radius:12px;
  box-shadow:var(--shadow-sm);
}
.map-box .pin svg{color:var(--bronze);}
.map-box .pin strong{font-size:15px;color:var(--ink);}
.map-box .pin span{font-size:12.5px;color:var(--text-3);}
.visit-info h2{font-size:clamp(23px,2.4vw,30px);margin-bottom:14px;}
.visit-info > p{color:var(--text-2);font-size:15.5px;}
.visit-list{margin-top:24px;display:flex;flex-direction:column;gap:0;}
.visit-list li{
  display:flex;
  gap:14px;
  padding:15px 0;
  border-bottom:1px solid var(--line);
  font-size:14.5px;
}
.visit-list li:last-child{border-bottom:0;}
.visit-list .k{
  width:88px;
  flex-shrink:0;
  color:var(--text-3);
  font-size:13.5px;
}
.visit-list .v{color:var(--ink);font-weight:500;}

/* ---------- faq ---------- */
.faq-wrap{
  display:grid;
  grid-template-columns:.78fr 1.22fr;
  gap:56px;
  align-items:start;
}
.faq-aside h2{font-size:clamp(24px,2.5vw,32px);margin-bottom:14px;}
.faq-aside p{color:var(--text-2);font-size:15.5px;}
.faq-aside .btn{margin-top:24px;}
.faq-list{border-top:1px solid var(--line);}
.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;
  min-height:60px;
  cursor:pointer;
  font-size:16px;
  font-weight:600;
  color:var(--ink);
  list-style:none;
  transition:color .2s ease;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--bronze);}
.faq-item summary .sign{
  position:relative;
  width:18px;height:18px;
  flex-shrink:0;
}
.faq-item summary .sign::before,
.faq-item summary .sign::after{
  content:"";
  position:absolute;
  background:var(--bronze);
  border-radius:2px;
  transition:transform .25s ease,opacity .25s ease;
}
.faq-item summary .sign::before{left:0;top:8px;width:18px;height:2px;}
.faq-item summary .sign::after{left:8px;top:0;width:2px;height:18px;}
.faq-item[open] summary .sign::after{transform:rotate(90deg);opacity:0;}
.faq-item[open] summary{color:var(--bronze-dark);}
.faq-item .faq-body{
  padding:0 4px 22px;
  font-size:15px;
  color:var(--text-2);
  line-height:1.9;
  max-width:46em;
}

/* ---------- final cta ---------- */
.final-cta{
  background:var(--ink);
  color:#F7F2E8;
  padding:72px 0;
}
.final-cta-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:40px;
}
.final-cta h2{
  color:#FFFDF8;
  font-size:clamp(23px,2.4vw,30px);
  margin-bottom:10px;
}
.final-cta p{
  color:rgba(247,242,232,.78);
  font-size:15.5px;
  max-width:36em;
  margin:0;
}
.final-cta .cta-actions{display:flex;flex-wrap:wrap;gap:14px;flex-shrink:0;}

/* ---------- footer ---------- */
.site-footer{
  background:var(--ink-deep);
  color:#F7F2E8;
  padding:68px 0 30px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1.2fr;
  gap:44px;
  padding-bottom:44px;
  border-bottom:1px solid rgba(247,242,232,.14);
}
.footer-brand{
  display:flex;
  align-items:center;
  gap:10px;
  font-family:var(--serif);
  font-size:18px;
  font-weight:700;
  letter-spacing:.03em;
  color:#FFFDF8;
  margin-bottom:16px;
}
.footer-brand .brand-mark{
  width:32px;height:32px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border-radius:8px;
  background:rgba(247,242,232,.12);
  color:var(--bronze-light);
  flex-shrink:0;
}
.footer-desc{
  font-size:14px;
  line-height:1.85;
  color:#C8C0B2;
  max-width:30em;
  margin:0;
}
.footer-col h4{
  font-size:15px;
  color:#FFFDF8;
  margin-bottom:16px;
  font-family:var(--sans);
  font-weight:600;
  letter-spacing:.04em;
}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col ul li{
  font-size:14px;
  color:#C8C0B2;
  line-height:1.7;
}
.footer-col ul li a{color:#C8C0B2;font-size:14px;}
.footer-col ul li a:hover{color:var(--bronze-light);}
.footer-meta{
  font-size:13.5px;
  line-height:1.85;
  color:#C8C0B2;
  margin:0;
}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  gap:12px;
  padding-top:24px;
  font-size:13px;
  color:rgba(200,192,178,.72);
}

/* ---------- floating ---------- */
.float-cta{
  position:fixed;
  right:26px;
  bottom:30px;
  z-index:80;
  display:flex;
  flex-direction:column;
  gap:10px;
  opacity:0;
  visibility:hidden;
  transform:translateY(12px);
  transition:opacity .28s ease,transform .28s ease,visibility .28s;
}
.float-cta.is-visible{opacity:1;visibility:visible;transform:translateY(0);}
.float-cta .btn{box-shadow:0 8px 24px rgba(22,59,54,.24);}
.to-top{
  width:46px;height:46px;
  border-radius:50%;
  border:1px solid var(--line);
  background:var(--card);
  color:var(--ink);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  cursor:pointer;
  box-shadow:var(--shadow-sm);
  transition:border-color .2s ease,color .2s ease,transform .2s ease;
  align-self:flex-end;
}
.to-top:hover{border-color:var(--bronze);color:var(--bronze);transform:translateY(-2px);}
.mobile-bar{
  display:none;
  position:fixed;
  left:0;right:0;bottom:0;
  z-index:85;
  background:rgba(255,253,248,.98);
  border-top:1px solid var(--line);
  padding:10px 16px calc(10px + env(safe-area-inset-bottom));
  gap:12px;
  box-shadow:0 -6px 20px rgba(22,59,54,.1);
}
.mobile-bar .btn{flex:1;height:44px;font-size:14px;padding:0 12px;}

/* ---------- responsive ---------- */
@media (max-width:1200px){
  .header-inner{gap:18px;}
  .search-box input{width:118px;}
  .container{padding:0 22px;}
}
@media (max-width:992px){
  .nav-toggle{display:inline-flex;}
  .header-inner{gap:14px;}
  .main-nav{
    position:absolute;
    top:72px;left:0;right:0;
    display:none;
    flex-direction:column;
    align-items:stretch;
    gap:2px;
    padding:14px 22px 20px;
    background:var(--card);
    border-bottom:1px solid var(--line);
    box-shadow:0 14px 30px rgba(22,59,54,.1);
  }
  .main-nav.is-open{display:flex;}
  .nav-link{padding:12px 10px;font-size:15px;border-radius:8px;}
  .nav-link.is-active::after{left:10px;right:auto;width:24px;bottom:6px;}
  .search-box{display:none;}
  .header-tools{margin-left:auto;}
  .page-hero{padding:56px 0 64px;}
  .page-hero-inner{grid-template-columns:1fr;gap:36px;}
  .hero-card{max-width:520px;}
  .section{padding:72px 0;}
  .section-tight{padding:56px 0;}
  .schedule-grid{grid-template-columns:1fr;}
  .consult-wrap{grid-template-columns:1fr;gap:36px;}
  .faq-wrap{grid-template-columns:1fr;gap:32px;}
  .visit-wrap{grid-template-columns:1fr;gap:32px;}
  .final-cta-inner{flex-direction:column;align-items:flex-start;gap:26px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px;}
  .float-cta{display:none;}
  .mobile-bar{display:flex;}
  body{padding-bottom:76px;}
}
@media (max-width:768px){
  .container{padding:0 18px;}
  .header-inner{height:66px;}
  .main-nav{top:66px;}
  .logo{font-size:16.5px;}
  .logo-mark{width:30px;height:30px;border-radius:8px;}
  .header-cta{padding:0 14px;height:38px;font-size:13.5px;}
  .page-hero h1{font-size:30px;}
  .hero-sub{font-size:15px;}
  .hero-actions{gap:10px;}
  .hero-actions .btn{flex:1 1 auto;}
  .section-head{flex-direction:column;align-items:flex-start;gap:16px;margin-bottom:32px;}
  .channel-grid{grid-template-columns:1fr;}
  .form-row{grid-template-columns:1fr;gap:0;}
  .consult-form{padding:26px 20px;}
  .final-cta{padding:56px 0;}
  .final-cta .cta-actions{width:100%;}
  .final-cta .cta-actions .btn{flex:1 1 auto;}
  .footer-grid{grid-template-columns:1fr;gap:30px;}
  .site-footer{padding:52px 0 26px;}
  .faq-item summary{font-size:15px;padding:18px 2px;}
}
@media (max-width:480px){
  body{font-size:15px;}
  .page-hero{padding:44px 0 52px;}
  .page-hero h1{font-size:27px;}
  .hero-points{flex-direction:column;gap:8px;}
  .hero-card{padding:24px 20px;}
  .schedule-item{padding:24px 20px;}
  .schedule-item .num{font-size:26px;}
  .section{padding:52px 0;}
  .channel-card{padding:24px 20px;}
  .btn{height:44px;padding:0 18px;font-size:14.5px;}
  .mobile-bar .btn{font-size:13.5px;}
  .footer-bottom{flex-direction:column;gap:8px;font-size:12.5px;}
}