/* roulang page: index */
:root{
  --brand-900:#0B3B31;
  --brand-700:#12604F;
  --brand-500:#1E8A72;
  --brand-300:#5FC7AC;
  --grad-brand:linear-gradient(135deg,#12604F 0%,#1E8A72 55%,#5FC7AC 100%);
  --accent-500:#E08A2B;
  --accent-200:#FBE7C9;
  --bg:#FAF8F3;
  --surface:#FFFFFF;
  --surface-2:#F3F1EA;
  --ink:#14201C;
  --ink-2:#5A6A64;
  --line:#E4E0D6;
  --ok:#1E8A72;
  --warn:#C4452E;
  --info:#2F6FB0;
  --r-sm:10px;
  --r-md:16px;
  --r-lg:24px;
  --r-xl:32px;
  --r-pill:999px;
  --sh-2:0 8px 24px -8px rgba(20,32,28,.14);
  --sh-3:0 24px 60px -24px rgba(11,59,49,.28);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  background:var(--bg);
  color:var(--ink);
  font-size:16px;
  line-height:1.75;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding-left:1.15em}
:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px;border-radius:6px}
::selection{background:rgba(30,138,114,.18)}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.section{padding:96px 0}
.section--tight{padding:72px 0}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;color:var(--brand-700);
  background:rgba(30,138,114,.09);
  border:1px solid rgba(30,138,114,.18);
  padding:5px 14px;border-radius:var(--r-pill);letter-spacing:.02em;
}
.section-head{max-width:720px;margin-bottom:44px}
.section-head h2{
  font-size:32px;line-height:1.28;font-weight:700;letter-spacing:-.005em;margin-top:16px;
}
.section-head p{margin-top:14px;color:var(--ink-2);font-size:16.5px}
.section-head--row{
  max-width:none;display:flex;align-items:flex-end;justify-content:space-between;gap:32px;flex-wrap:wrap;
}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(250,248,243,0);
  transition:background .3s ease,box-shadow .3s ease,border-color .3s ease;
  border-bottom:1px solid transparent;
}
.site-header.is-scrolled{
  background:rgba(255,255,255,.92);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  border-bottom-color:var(--line);
  box-shadow:0 8px 24px -18px rgba(11,59,49,.45);
}
.nav{display:flex;align-items:center;justify-content:space-between;gap:24px;height:68px}
.brand{display:inline-flex;align-items:center;gap:10px;font-weight:800;font-size:17px;letter-spacing:-.01em;color:var(--brand-900);flex:none}
.brand-mark{
  width:34px;height:34px;border-radius:11px;background:var(--grad-brand);
  display:grid;place-items:center;color:#fff;box-shadow:0 8px 18px -10px rgba(18,96,79,.8);flex:none;
}
.brand-mark svg{width:18px;height:18px}
.brand-text{white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:28px;margin-left:auto;margin-right:auto}
.nav-link{position:relative;font-size:15px;color:var(--ink-2);padding:6px 0;transition:color .2s ease;white-space:nowrap}
.nav-link:hover{color:var(--brand-900)}
.nav-link.is-active{color:var(--brand-900);font-weight:600}
.nav-link.is-active::after{
  content:"";position:absolute;left:0;right:0;bottom:-4px;height:2px;
  border-radius:2px;background:var(--brand-500);
}
.nav-actions{display:flex;align-items:center;gap:12px;flex:none}
.icon-btn{
  width:40px;height:40px;border-radius:var(--r-md);border:1px solid var(--line);
  background:#fff;display:grid;place-items:center;cursor:pointer;color:var(--brand-700);
  transition:.22s ease;
}
.icon-btn:hover{border-color:var(--brand-300);color:var(--brand-900);box-shadow:var(--sh-2)}
.icon-btn svg{width:18px;height:18px}
.nav-toggle{display:none}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 28px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;border:1.5px solid transparent;cursor:pointer;
  transition:transform .22s ease,box-shadow .22s ease,background .22s ease,border-color .22s ease,color .22s ease;
  text-align:center;
}
.btn svg{width:16px;height:16px;flex:none}
.btn-primary{
  background-image:var(--grad-brand);background-size:170% 170%;background-position:0% 50%;
  color:#fff;box-shadow:0 14px 28px -16px rgba(18,96,79,.9);
}
.btn-primary:hover{transform:translateY(-1px);background-position:100% 50%;box-shadow:0 20px 34px -16px rgba(18,96,79,.75)}
.btn-primary:active{transform:translateY(0);box-shadow:0 8px 18px -14px rgba(18,96,79,.8)}
.btn-ghost{background:#fff;border-color:var(--brand-700);color:var(--brand-900)}
.btn-ghost:hover{background:rgba(11,59,49,.05);transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(0)}
.btn-sm{padding:10px 20px;font-size:14px}
.btn[disabled]{opacity:.55;cursor:not-allowed;transform:none;box-shadow:none}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--brand-700)}
.link-arrow svg{width:15px;height:15px;transition:transform .22s ease}
.link-arrow:hover{color:var(--brand-900);text-decoration:underline;text-underline-offset:4px}
.link-arrow:hover svg{transform:translateX(4px)}

/* 移动端抽屉 */
.drawer-mask{
  position:fixed;inset:0;background:rgba(11,59,49,.42);opacity:0;visibility:hidden;
  transition:.28s ease;z-index:90;
}
.drawer-mask.is-open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(340px,86vw);background:#fff;z-index:100;
  transform:translateX(102%);transition:transform .32s cubic-bezier(.4,0,.2,1);
  padding:22px 22px 28px;display:flex;flex-direction:column;gap:18px;overflow-y:auto;
  box-shadow:-16px 0 48px -24px rgba(11,59,49,.5);
}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between}
.drawer-nav{display:flex;flex-direction:column;gap:2px;margin-top:6px}
.drawer-nav a{
  padding:13px 12px;border-radius:var(--r-sm);font-size:15.5px;color:var(--ink);
  border:1px solid transparent;transition:.2s ease;
}
.drawer-nav a:hover{background:var(--surface-2);border-color:var(--line)}
.drawer-nav a.is-active{background:rgba(30,138,114,.1);color:var(--brand-900);font-weight:600}
.drawer .btn{width:100%}
.drawer-foot{margin-top:auto;font-size:13px;color:var(--ink-2);line-height:1.9;border-top:1px solid var(--line);padding-top:16px}

/* ============ Hero ============ */
.split-hero{
  position:relative;overflow:hidden;
  padding:56px 0 88px;
}
.split-hero::before{
  content:"";position:absolute;top:-160px;right:-120px;width:640px;height:640px;border-radius:50%;
  background:radial-gradient(circle,rgba(30,138,114,.16) 0%,rgba(30,138,114,0) 68%);
  pointer-events:none;
}
.split-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.045;
  background-image:linear-gradient(rgba(11,59,49,.7) 1px,transparent 1px),linear-gradient(90deg,rgba(11,59,49,.7) 1px,transparent 1px);
  background-size:24px 24px;
  -webkit-mask-image:linear-gradient(180deg,#000 0%,transparent 72%);
  mask-image:linear-gradient(180deg,#000 0%,transparent 72%);
}
.hero-grid{
  position:relative;z-index:1;
  display:grid;grid-template-columns:56fr 44fr;gap:56px;align-items:center;
}
.hero-copy h1{
  font-size:48px;line-height:1.15;font-weight:800;letter-spacing:-.01em;margin-top:20px;
}
.hero-copy h1 .hl{
  background-image:linear-gradient(180deg,transparent 62%,rgba(95,199,172,.42) 62%);
  padding:0 2px;
}
.hero-sub{margin-top:20px;font-size:17px;color:var(--ink-2);max-width:520px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.hero-trust{display:flex;flex-wrap:wrap;gap:22px;margin-top:32px;list-style:none;padding:0}
.hero-trust li{display:inline-flex;align-items:center;gap:8px;font-size:14px;color:var(--ink-2)}
.dot{width:6px;height:6px;border-radius:50%;background:var(--brand-500);flex:none}
.hero-trust svg{width:16px;height:16px;color:var(--brand-500);flex:none}

.hero-visual{position:relative}
.hero-figure{
  position:relative;border-radius:var(--r-lg);overflow:hidden;background:var(--surface-2);
  box-shadow:var(--sh-3);aspect-ratio:5/4.2;
}
.hero-figure img{width:100%;height:100%;object-fit:cover}
.hero-figure::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(150deg,rgba(18,96,79,.42) 0%,rgba(18,96,79,.12) 55%,rgba(95,199,172,.28) 100%);
}
.hero-badge{
  position:absolute;top:-18px;right:-8px;
  background:#fff;border-radius:var(--r-md);padding:14px 18px;box-shadow:var(--sh-3);
  border:1px solid var(--line);text-align:left;z-index:2;
}
.hero-badge .num{
  font-size:30px;font-weight:800;color:var(--brand-900);line-height:1.1;
  font-variant-numeric:tabular-nums;letter-spacing:-.02em;
}
.hero-badge .num span{font-size:15px;font-weight:700;margin-left:2px}
.hero-badge .lbl{font-size:12px;color:var(--ink-2);margin-top:4px;letter-spacing:.02em}
.hero-mini{
  position:absolute;left:-10px;bottom:-18px;z-index:2;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  box-shadow:var(--sh-3);padding:13px 16px;display:flex;align-items:center;gap:12px;
  transition:.24s ease;
}
.hero-mini:hover{border-color:var(--brand-300);transform:translateY(-2px)}
.hero-mini .ico{
  width:38px;height:38px;border-radius:12px;background:rgba(30,138,114,.1);
  display:grid;place-items:center;color:var(--brand-700);flex:none;
}
.hero-mini .ico svg{width:18px;height:18px}
.hero-mini .txt strong{display:block;font-size:14px;font-weight:600;color:var(--ink)}
.hero-mini .txt span{font-size:12px;color:var(--ink-2)}
.hero-mini .go{color:var(--brand-500);width:16px;height:16px}

/* ============ 服务能力 ============ */
.cap-grid{display:grid;grid-template-columns:1.12fr .88fr;gap:24px;align-items:stretch}
.cap-main{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:28px;display:flex;flex-direction:column;gap:18px;
  transition:.25s ease;overflow:hidden;
}
.cap-main:hover,.cap-card:hover{border-color:var(--brand-300);box-shadow:var(--sh-2);transform:translateY(-2px)}
.cap-main .thumb{border-radius:var(--r-md);overflow:hidden;aspect-ratio:16/10;background:var(--surface-2)}
.cap-main .thumb img{width:100%;height:100%;object-fit:cover}
.cap-main h3{font-size:20px;font-weight:600;line-height:1.4}
.cap-main p{color:var(--ink-2);font-size:15.5px}
.cap-side{display:grid;grid-template-rows:repeat(3,1fr);gap:24px}
.cap-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:22px 24px;
  display:flex;gap:16px;align-items:flex-start;transition:.25s ease;
}
.ico-box{
  width:44px;height:44px;border-radius:var(--r-md);background:rgba(30,138,114,.1);
  display:grid;place-items:center;color:var(--brand-700);flex:none;
}
.ico-box svg{width:20px;height:20px}
.cap-card h3{font-size:16.5px;font-weight:600;line-height:1.5}
.cap-card p{font-size:14.5px;color:var(--ink-2);margin-top:6px}

/* ============ 数据板块 ============ */
.stats-band{
  position:relative;overflow:hidden;background-image:var(--grad-brand);color:#fff;
}
.stats-band::before{
  content:"";position:absolute;top:-220px;right:-100px;width:620px;height:620px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,255,255,.22) 0%,rgba(255,255,255,0) 68%);
}
.stats-inner{position:relative;z-index:1;display:grid;grid-template-columns:.85fr 1.15fr;gap:48px;align-items:center;padding:72px 0}
.stats-inner h2{font-size:32px;line-height:1.3;font-weight:700;color:#fff}
.stats-inner p{margin-top:14px;color:rgba(255,255,255,.78);font-size:15.5px;max-width:400px}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.data-badge{
  border:1px solid rgba(255,255,255,.32);background:rgba(255,255,255,.1);
  border-radius:var(--r-md);padding:20px 16px;text-align:left;
  transition:.25s ease;
}
.data-badge:hover{background:rgba(255,255,255,.18);transform:translateY(-2px)}
.data-badge .num{
  font-size:34px;font-weight:800;line-height:1.1;font-variant-numeric:tabular-nums;letter-spacing:-.02em;
}
.data-badge .num span{font-size:15px;font-weight:700;margin-left:2px}
.data-badge .lbl{font-size:12px;color:rgba(255,255,255,.82);margin-top:8px;letter-spacing:.02em}

/* ============ 案例 ============ */
.case-grid{display:grid;grid-template-columns:1fr 1fr;gap:28px}
.case-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;
  transition:.28s ease;display:flex;flex-direction:column;
}
.case-card:hover{border-color:var(--brand-300);transform:translateY(-3px);box-shadow:var(--sh-2)}
.case-card .media{aspect-ratio:16/10;overflow:hidden;background:var(--surface-2);position:relative}
.case-card .media img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.case-card:hover .media img{transform:scale(1.04)}
.case-card .body{padding:24px 26px 26px;display:flex;flex-direction:column;gap:10px;flex:1}
.case-card .body h3{font-size:19px;font-weight:600;line-height:1.45}
.case-card .body p{font-size:15px;color:var(--ink-2);flex:1}
.tag-row{display:flex;flex-wrap:wrap;gap:8px}
.tag{
  display:inline-flex;align-items:center;font-size:12px;font-weight:600;letter-spacing:.02em;
  padding:4px 11px;border-radius:var(--r-pill);
  background:var(--accent-200);color:#8A5212;
}
.tag--brand{background:rgba(30,138,114,.12);color:var(--brand-700)}
.tag--line{background:transparent;border:1px solid var(--line);color:var(--ink-2)}

/* ============ 方案步骤 ============ */
.flow{border-top:1px solid var(--line)}
.flow-row{
  display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;
  padding:52px 0;border-bottom:1px solid var(--line);
}
.flow-row.is-reverse .flow-text{order:2}
.flow-num{
  font-size:44px;font-weight:800;line-height:1;letter-spacing:-.03em;
  color:transparent;-webkit-text-stroke:1.5px var(--brand-300);
  font-variant-numeric:tabular-nums;display:block;margin-bottom:14px;
}
.flow-text h3{font-size:22px;font-weight:700;line-height:1.4}
.flow-text p{margin-top:12px;color:var(--ink-2);font-size:15.5px}
.flow-text ul{margin-top:16px;list-style:none;padding:0;display:grid;gap:10px}
.flow-text li{position:relative;padding-left:22px;font-size:15px;color:var(--ink)}
.flow-text li::before{
  content:"";position:absolute;left:0;top:9px;width:8px;height:8px;border-radius:3px;
  background:var(--brand-300);
}
.flow-media{border-radius:var(--r-lg);overflow:hidden;background:var(--surface-2);aspect-ratio:16/11;box-shadow:var(--sh-2)}
.flow-media img{width:100%;height:100%;object-fit:cover}

/* ============ 最新信息 ============ */
.news-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:40px}
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.news-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;
  display:flex;flex-direction:column;transition:.26s ease;
}
.news-card:hover{border-color:var(--brand-300);transform:translateY(-2px);box-shadow:var(--sh-2)}
.news-card.is-feature{grid-column:span 2}
.news-thumb{display:block;aspect-ratio:16/9;overflow:hidden;background:var(--surface-2)}
.news-card.is-feature .news-thumb{aspect-ratio:16/7.4}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .45s ease}
.news-card:hover .news-thumb img{transform:scale(1.03)}
.news-body{padding:22px 24px 24px;display:flex;flex-direction:column;gap:10px;flex:1}
.news-body h3{font-size:17px;font-weight:600;line-height:1.5}
.news-body h3 a:hover{color:var(--brand-700)}
.news-body p{font-size:14.5px;color:var(--ink-2);flex:1}
.news-meta{display:flex;align-items:center;gap:12px;font-size:13px;color:var(--ink-2);font-variant-numeric:tabular-nums}
.news-meta .sep{width:4px;height:4px;border-radius:50%;background:var(--line)}
.news-empty{
  grid-column:1/-1;border:1.5px dashed var(--line);border-radius:var(--r-lg);
  padding:56px 24px;text-align:center;background:rgba(243,241,234,.45);
}
.news-empty svg{width:34px;height:34px;color:var(--brand-300);margin:0 auto 14px}
.news-empty p{font-size:15px;color:var(--ink-2)}
.news-empty a{display:inline-block;margin-top:10px;font-size:14px;font-weight:600;color:var(--brand-700);text-decoration:underline;text-underline-offset:4px}

/* ============ FAQ ============ */
.faq-wrap{max-width:820px;margin:0 auto}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item:first-child{border-top:1px solid var(--line)}
.faq-q{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 0;font-size:17px;font-weight:600;line-height:1.55;color:var(--ink);
  transition:color .2s ease;
}
.faq-q::-webkit-details-marker{display:none}
.faq-q:hover{color:var(--brand-700)}
.faq-icon{
  width:28px;height:28px;border-radius:50%;border:1px solid var(--line);flex:none;
  display:grid;place-items:center;font-size:17px;line-height:1;color:var(--brand-700);
  transition:transform .25s ease,background .25s ease,color .25s ease,border-color .25s ease;
}
.faq-item[open] .faq-icon{transform:rotate(45deg);background:var(--brand-500);border-color:var(--brand-500);color:#fff}
.faq-a{padding:0 0 24px;color:var(--ink-2);font-size:15.5px;line-height:1.85;max-width:740px}
.faq-item[open] .faq-q{color:var(--brand-900)}

/* ============ 联系表单 ============ */
.contact-band{padding:0 0 96px}
.contact-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-xl);
  display:grid;grid-template-columns:1fr 1fr;gap:48px;padding:48px;
  box-shadow:var(--sh-2);
}
.contact-info h2{font-size:30px;line-height:1.3;font-weight:700}
.contact-info > p{margin-top:14px;color:var(--ink-2);font-size:15.5px}
.contact-list{list-style:none;padding:0;margin-top:28px;display:grid;gap:16px}
.contact-list li{display:flex;gap:14px;align-items:flex-start}
.contact-list strong{display:block;font-size:15px;font-weight:600}
.contact-list span{font-size:14px;color:var(--ink-2)}
.form-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:28px;box-shadow:var(--sh-3)}
.field{margin-bottom:16px}
.field label{display:block;font-size:13px;font-weight:600;color:var(--ink-2);margin-bottom:7px;letter-spacing:.02em}
.field input,.field select,.field textarea{
  width:100%;height:48px;border-radius:var(--r-sm);border:1px solid var(--line);
  background:#fff;padding:0 14px;font-size:15px;transition:.2s ease;
}
.field textarea{height:110px;padding:12px 14px;resize:vertical;line-height:1.7}
.field input::placeholder,.field textarea::placeholder{color:#9AA7A1}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--brand-500);box-shadow:0 0 0 3px rgba(30,138,114,.16);
}
.field.has-error input,.field.has-error select,.field.has-error textarea{border-color:var(--warn)}
.err-tip{display:none;font-size:12px;color:var(--warn);margin-top:6px}
.field.has-error .err-tip{display:block}
.form-note{font-size:12.5px;color:var(--ink-2);margin-top:12px;line-height:1.7}
.form-ok{
  display:none;margin-top:14px;padding:12px 14px;border-radius:var(--r-sm);
  background:rgba(30,138,114,.1);border:1px solid rgba(30,138,114,.28);
  font-size:14px;color:var(--brand-700);
}
.form-ok.is-show{display:block}
.form-card .btn{width:100%;margin-top:6px}

/* ============ 页脚 ============ */
.site-footer{background:var(--brand-900);color:rgba(255,255,255,.74);padding:72px 0 0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand .brand{color:#fff;margin-bottom:16px}
.footer-brand p{font-size:14px;line-height:1.85;max-width:280px}
.footer-col h4{font-size:13px;font-weight:600;color:#fff;letter-spacing:.08em;margin-bottom:18px}
.footer-col ul{list-style:none;padding:0;display:grid;gap:11px}
.footer-col a{font-size:14px;color:rgba(255,255,255,.7);transition:color .2s ease}
.footer-col a:hover{color:var(--brand-300)}
.footer-contact li{font-size:14px;line-height:1.8;color:rgba(255,255,255,.7)}
.footer-bottom{
  margin-top:56px;border-top:1px solid rgba(255,255,255,.14);
  padding:22px 0 28px;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.58);
}
.to-top{display:inline-flex;align-items:center;gap:6px;color:rgba(255,255,255,.8);font-size:13px}
.to-top:hover{color:var(--brand-300)}
.to-top svg{width:14px;height:14px}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .nav-links{gap:20px}
  .hero-copy h1{font-size:42px}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:1023px){
  .nav-links,.nav-actions .btn{display:none}
  .nav-toggle{display:grid}
  .nav-actions .icon-btn{display:none}
  .split-hero{padding:36px 0 64px}
  .hero-grid{grid-template-columns:1fr;gap:44px}
  .hero-copy h1{font-size:38px}
  .hero-figure{aspect-ratio:16/10}
  .section{padding:64px 0}
  .section--tight{padding:52px 0}
  .section-head h2,.stats-inner h2{font-size:27px}
  .cap-grid{grid-template-columns:1fr}
  .cap-side{grid-template-rows:none;grid-template-columns:1fr 1fr;gap:20px}
  .cap-side .cap-card:last-child{grid-column:span 2}
  .stats-inner{grid-template-columns:1fr;gap:32px;padding:56px 0}
  .case-grid{grid-template-columns:1fr}
  .news-grid{grid-template-columns:1fr 1fr}
  .news-card.is-feature{grid-column:span 2}
  .flow-row{grid-template-columns:1fr;gap:28px;padding:40px 0}
  .flow-row.is-reverse .flow-text{order:0}
  .contact-card{grid-template-columns:1fr;gap:36px;padding:36px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .contact-band{padding-bottom:64px}
}
@media (max-width:767px){
  .container{padding:0 20px}
  .hero-copy h1{font-size:32px}
  .hero-sub{font-size:16px}
  .hero-actions .btn{flex:1 1 100%}
  .hero-badge{top:-14px;right:0;padding:12px 14px}
  .hero-badge .num{font-size:24px}
  .hero-mini{left:0;bottom:-14px;padding:11px 14px}
  .cap-side{grid-template-columns:1fr}
  .cap-side .cap-card:last-child{grid-column:span 1}
  .news-grid{grid-template-columns:1fr}
  .news-card.is-feature{grid-column:span 1}
  .news-card.is-feature .news-thumb{aspect-ratio:16/9}
  .section{padding:48px 0}
  .section-head{margin-bottom:32px}
  .stats-grid{grid-template-columns:1fr 1fr;gap:14px}
  .data-badge .num{font-size:28px}
  .hero-trust{gap:14px}
  .contact-card{padding:24px;border-radius:var(--r-lg)}
  .form-card{padding:22px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .site-footer{padding-top:52px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:479px){
  .hero-copy h1{font-size:29px}
  .brand{font-size:15.5px}
  .flow-num{font-size:34px}
  .faq-q{font-size:16px}
  .news-body h3{font-size:16px}
}

/* roulang page: article */
:root{
  --brand-900:#0B3B31;
  --brand-700:#12604F;
  --brand-500:#1E8A72;
  --brand-300:#5FC7AC;
  --accent-500:#E08A2B;
  --accent-200:#FBE7C9;
  --bg:#FAF8F3;
  --surface:#FFFFFF;
  --surface-2:#F3F1EA;
  --ink:#14201C;
  --ink-2:#5A6A64;
  --line:#E4E0D6;
  --ok:#1E8A72;
  --warn:#C4452E;
  --info:#2F6FB0;
  --grad-brand:linear-gradient(135deg,#12604F 0%,#1E8A72 55%,#5FC7AC 100%);
  --r-sm:10px;
  --r-md:16px;
  --r-lg:24px;
  --r-xl:32px;
  --sh-2:0 8px 24px -8px rgba(20,32,28,.14);
  --sh-3:0 24px 60px -24px rgba(11,59,49,.28);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.75;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
body.is-locked{overflow:hidden;}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px;border-radius:4px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0;}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(250,248,243,.94);
  border-bottom:1px solid transparent;
  transition:background .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.site-header.is-scrolled{
  background:rgba(255,255,255,.92);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  border-bottom-color:var(--line);
  box-shadow:0 6px 22px -18px rgba(11,59,49,.5);
}
.nav{display:flex;align-items:center;gap:28px;min-height:68px;}
.brand{display:inline-flex;align-items:center;gap:10px;text-decoration:none;flex:0 0 auto;}
.brand-mark{
  width:36px;height:36px;border-radius:12px;
  background:var(--grad-brand);color:#fff;
  display:grid;place-items:center;flex:0 0 auto;
  box-shadow:0 6px 16px -8px rgba(30,138,114,.8);
}
.brand-mark svg{width:19px;height:19px;}
.brand-text{font-size:17px;font-weight:800;color:var(--brand-900);letter-spacing:-.01em;white-space:nowrap;}
.nav-links{display:flex;align-items:center;gap:26px;margin-left:8px;}
.nav-link{
  position:relative;font-size:15px;font-weight:500;color:var(--ink-2);
  padding:6px 0;transition:color .2s ease;white-space:nowrap;
}
.nav-link:hover{color:var(--brand-700);}
.nav-link.is-active{color:var(--brand-900);font-weight:600;}
.nav-link.is-active::after{
  content:"";position:absolute;left:0;right:0;bottom:-14px;height:2px;
  background:var(--brand-500);border-radius:2px;
}
.nav-actions{display:flex;align-items:center;gap:12px;margin-left:auto;}
.icon-btn{
  width:40px;height:40px;border-radius:12px;border:1px solid var(--line);
  background:var(--surface);color:var(--brand-700);
  display:grid;place-items:center;cursor:pointer;
  transition:border-color .2s ease,background .2s ease,transform .2s ease;
}
.icon-btn svg{width:18px;height:18px;}
.icon-btn:hover{border-color:var(--brand-300);background:#fff;transform:translateY(-1px);}
.icon-btn:active{transform:translateY(0);}
.nav-toggle{display:none;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 28px;border-radius:999px;border:1.5px solid transparent;
  font-size:15px;font-weight:600;cursor:pointer;text-align:center;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
}
.btn svg{width:16px;height:16px;}
.btn-primary{
  background:var(--grad-brand);background-size:160% 160%;background-position:0% 50%;
  color:#fff;box-shadow:0 14px 30px -16px rgba(18,96,79,.85);
}
.btn-primary:hover{transform:translateY(-1px);background-position:100% 50%;box-shadow:0 20px 38px -18px rgba(18,96,79,.9);}
.btn-primary:active{transform:translateY(0);box-shadow:0 10px 22px -16px rgba(18,96,79,.8);}
.btn-sm{padding:10px 20px;font-size:14px;}
.btn-ghost{
  background:var(--surface);color:var(--brand-900);border-color:var(--brand-700);
}
.btn-ghost:hover{background:rgba(11,59,49,.05);transform:translateY(-1px);}
.btn-ghost:active{transform:translateY(0);background:rgba(11,59,49,.09);}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;color:var(--brand-700);
  font-weight:600;font-size:15px;transition:color .2s ease;
}
.link-arrow svg{width:16px;height:16px;transition:transform .2s ease;}
.link-arrow:hover{color:var(--brand-900);}
.link-arrow:hover svg{transform:translateX(4px);}

/* ---------- 面包屑与文章头 ---------- */
.article-top{padding:36px 0 0;}
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:12px;color:var(--ink-2);margin-bottom:22px;
}
.breadcrumb a{color:var(--ink-2);transition:color .2s ease;}
.breadcrumb a:hover{color:var(--brand-700);}
.breadcrumb .sep{color:#B9B4A6;}
.breadcrumb .current{color:var(--brand-700);}

.article-head{max-width:900px;}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:999px;
  background:var(--accent-200);color:#8A4E08;
  font-size:12px;font-weight:600;letter-spacing:.02em;
}
.badge-dot{width:5px;height:5px;border-radius:50%;background:var(--accent-500);}
.article-title{
  font-size:clamp(28px,3.4vw,40px);
  line-height:1.22;font-weight:800;letter-spacing:-.01em;
  color:var(--brand-900);margin:18px 0 18px;
  overflow-wrap:break-word;word-break:break-word;
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 22px;
  font-size:14px;color:var(--ink-2);
}
.article-meta .meta-item{display:inline-flex;align-items:center;gap:7px;}
.article-meta svg{width:15px;height:15px;color:var(--brand-500);flex:0 0 auto;}
.meta-divider{width:4px;height:4px;border-radius:50%;background:#C9C4B6;}
.article-rule{margin:26px 0 0;height:1px;background:var(--line);border:0;}

.article-cover{
  margin:30px 0 0;border-radius:var(--r-lg);overflow:hidden;
  border:1px solid var(--line);background:var(--surface-2);
  box-shadow:var(--sh-2);
}
.article-cover img{width:100%;height:auto;aspect-ratio:16/7;object-fit:cover;}

/* ---------- 布局 ---------- */
.article-layout{
  display:grid;grid-template-columns:minmax(0,1fr) 260px;
  gap:48px;align-items:start;padding:40px 0 0;
}
.article-main{max-width:760px;min-width:0;}

/* ---------- 正文排版 ---------- */
.article-body{font-size:17px;line-height:1.85;color:var(--ink);overflow-wrap:break-word;}
.article-body > *:first-child{margin-top:0;}
.article-body p{margin:0 0 1.4em;}
.article-body h2{
  font-size:24px;line-height:1.45;font-weight:700;color:var(--brand-900);
  margin:2em 0 .8em;padding-left:14px;position:relative;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.3em;bottom:.3em;width:3px;
  border-radius:2px;background:var(--brand-500);
}
.article-body h3{font-size:20px;font-weight:600;color:var(--brand-900);margin:1.7em 0 .6em;line-height:1.5;}
.article-body h4{font-size:17px;font-weight:600;color:var(--brand-700);margin:1.4em 0 .5em;}
.article-body ul,.article-body ol{margin:0 0 1.4em;padding-left:1.35em;}
.article-body ul{list-style:none;padding-left:1.2em;}
.article-body ul li{position:relative;margin:0 0 .6em;}
.article-body ul li::before{
  content:"";position:absolute;left:-1.05em;top:.72em;width:6px;height:6px;
  border-radius:50%;background:var(--brand-300);
}
.article-body ol{list-style:decimal;}
.article-body ol li{margin:0 0 .6em;padding-left:.2em;}
.article-body ol li::marker{color:var(--brand-700);font-weight:700;}
.article-body blockquote{
  margin:0 0 1.5em;padding:18px 22px;border-left:3px solid var(--accent-500);
  background:var(--accent-200);border-radius:0 var(--r-md) var(--r-md) 0;
  color:#4A3A22;font-size:16px;line-height:1.8;
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body a{color:var(--brand-700);text-decoration:underline;text-underline-offset:3px;transition:color .2s ease;}
.article-body a:hover{color:var(--brand-900);}
.article-body img{width:100%;height:auto;border-radius:12px;margin:0 0 10px;border:1px solid var(--line);}
.article-body figure{margin:0 0 1.6em;}
.article-body figcaption{font-size:13px;color:var(--ink-2);line-height:1.7;}
.article-body table{
  width:100%;border-collapse:separate;border-spacing:0;margin:0 0 1.6em;
  font-size:15px;border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden;
}
.article-body th,.article-body td{padding:12px 14px;text-align:left;border-bottom:1px solid var(--line);}
.article-body th{background:var(--surface-2);font-weight:600;color:var(--brand-900);}
.article-body tbody tr:nth-child(even) td{background:#FCFBF7;}
.article-body tr:last-child td{border-bottom:0;}
.article-body hr{border:0;height:1px;background:var(--line);margin:2em 0;}

/* ---------- 侧栏 ---------- */
.article-aside{position:relative;}
.toc-card{
  position:sticky;top:96px;
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-lg);padding:22px;box-shadow:var(--sh-2);
}
.toc-title{
  font-size:13px;font-weight:700;letter-spacing:.08em;color:var(--brand-700);
  margin-bottom:14px;display:flex;align-items:center;gap:8px;
}
.toc-title::before{content:"";width:14px;height:2px;border-radius:2px;background:var(--brand-500);}
.toc-list{display:grid;gap:2px;}
.toc-list li{
  font-size:14px;color:var(--ink-2);padding:9px 0 9px 18px;position:relative;
  border-bottom:1px dashed var(--line);line-height:1.5;
}
.toc-list li:last-child{border-bottom:0;}
.toc-list li::before{
  content:"";position:absolute;left:0;top:16px;width:6px;height:6px;
  border-radius:50%;background:var(--brand-300);
}
.toc-tip{
  margin-top:16px;padding-top:16px;border-top:1px solid var(--line);
  font-size:13px;color:var(--ink-2);line-height:1.7;
}
.toc-tip a{color:var(--brand-700);font-weight:600;text-decoration:underline;text-underline-offset:3px;}
.toc-tip a:hover{color:var(--brand-900);}

/* ---------- 文末区块 ---------- */
.article-foot{margin-top:44px;}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;align-items:center;}
.tag-label{font-size:13px;color:var(--ink-2);margin-right:2px;}
.tag{
  display:inline-flex;align-items:center;padding:6px 14px;border-radius:999px;
  background:var(--surface);border:1px solid var(--line);
  font-size:13px;color:var(--brand-700);
  transition:border-color .2s ease,color .2s ease,transform .2s ease,background .2s ease;
}
.tag:hover{border-color:var(--brand-300);color:var(--brand-900);background:#fff;transform:translateY(-1px);}

.foot-rule{border:0;height:1px;background:var(--line);margin:32px 0;}

.cta-inline{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:18px;
  background:var(--grad-brand);border-radius:var(--r-lg);
  padding:26px 28px;color:#fff;box-shadow:var(--sh-3);
}
.cta-inline h3{font-size:19px;font-weight:700;line-height:1.5;margin-bottom:6px;}
.cta-inline p{font-size:14px;line-height:1.7;color:rgba(255,255,255,.86);}
.cta-inline .btn-white{
  background:#fff;color:var(--brand-900);border-color:#fff;flex:0 0 auto;
}
.cta-inline .btn-white:hover{transform:translateY(-1px);box-shadow:0 16px 30px -18px rgba(0,0,0,.5);}

.relate-block{margin-top:44px;}
.relate-head{display:flex;align-items:baseline;justify-content:space-between;gap:16px;margin-bottom:20px;}
.relate-head h2{font-size:22px;font-weight:700;color:var(--brand-900);}
.relate-head a{font-size:14px;}
.news-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;}
.news-card{
  display:flex;flex-direction:column;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;
  transition:border-color .22s ease,transform .22s ease,box-shadow .22s ease;
  box-shadow:var(--sh-2);
}
.news-card:hover{border-color:var(--brand-300);transform:translateY(-2px);box-shadow:0 18px 40px -24px rgba(11,59,49,.45);}
.news-thumb{aspect-ratio:16/9;overflow:hidden;background:var(--surface-2);}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.news-card:hover .news-thumb img{transform:scale(1.04);}
.news-body{padding:18px 18px 20px;display:flex;flex-direction:column;gap:8px;flex:1;}
.news-cat{
  align-self:flex-start;font-size:12px;font-weight:600;color:var(--brand-700);
  background:#EAF6F1;border-radius:999px;padding:3px 10px;
}
.news-title{font-size:16px;font-weight:600;line-height:1.55;color:var(--brand-900);}
.news-desc{font-size:13px;line-height:1.7;color:var(--ink-2);}
.news-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:12px;color:var(--ink-2);}
.news-foot .link-arrow{font-size:13px;}

.news-empty{
  border:1.5px dashed var(--line);border-radius:var(--r-lg);
  padding:40px 24px;text-align:center;background:rgba(255,255,255,.55);
}
.news-empty .empty-icon{
  width:52px;height:52px;border-radius:16px;margin:0 auto 14px;
  background:var(--surface-2);color:var(--brand-500);display:grid;place-items:center;
}
.news-empty .empty-icon svg{width:24px;height:24px;}
.news-empty h3{font-size:17px;font-weight:600;color:var(--brand-900);margin-bottom:8px;}
.news-empty p{font-size:14px;color:var(--ink-2);margin-bottom:16px;}

.back-row{display:flex;flex-wrap:wrap;gap:14px;margin-top:36px;align-items:center;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--brand-900);color:#D9E6E1;margin-top:96px;padding:64px 0 0;}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1.3fr;gap:40px 32px;
  padding-bottom:44px;
}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand .brand-text{color:#fff;}
.footer-brand p{font-size:14px;line-height:1.8;color:rgba(217,230,225,.72);max-width:300px;}
.footer-col h4{
  font-size:13px;font-weight:700;letter-spacing:.1em;
  color:rgba(255,255,255,.55);margin-bottom:18px;
}
.footer-col ul{display:grid;gap:12px;}
.footer-col a{font-size:14px;color:rgba(217,230,225,.82);transition:color .2s ease;}
.footer-col a:hover{color:var(--brand-300);}
.footer-contact li{font-size:14px;line-height:1.7;color:rgba(217,230,225,.75);}
.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px;
  border-top:1px solid rgba(255,255,255,.12);padding:22px 0 28px;
  font-size:13px;color:rgba(217,230,225,.62);
}
.to-top{
  display:inline-flex;align-items:center;gap:6px;font-size:13px;
  color:rgba(217,230,225,.82);transition:color .2s ease;
}
.to-top svg{width:15px;height:15px;transition:transform .2s ease;}
.to-top:hover{color:var(--brand-300);}
.to-top:hover svg{transform:translateY(-3px);}

/* ---------- 移动抽屉 ---------- */
.drawer-mask{
  position:fixed;inset:0;background:rgba(11,59,49,.42);
  opacity:0;visibility:hidden;transition:opacity .25s ease,visibility .25s ease;z-index:90;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.mobile-drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(320px,86vw);
  background:var(--surface);z-index:95;padding:22px;
  display:flex;flex-direction:column;gap:6px;
  transform:translateX(104%);transition:transform .3s ease;
  box-shadow:-24px 0 60px -30px rgba(11,59,49,.6);
  overflow-y:auto;
}
.mobile-drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px;}
.drawer-close{
  width:38px;height:38px;border-radius:12px;border:1px solid var(--line);
  background:var(--surface);color:var(--brand-700);display:grid;place-items:center;cursor:pointer;
}
.drawer-close svg{width:18px;height:18px;}
.drawer-link{
  display:flex;align-items:center;justify-content:space-between;
  padding:14px 4px;font-size:15px;font-weight:500;color:var(--ink);
  border-bottom:1px solid var(--line);
}
.drawer-link:hover{color:var(--brand-700);}
.drawer-link svg{width:16px;height:16px;color:var(--brand-300);}
.mobile-drawer .btn{margin-top:20px;width:100%;}
.drawer-note{margin-top:18px;font-size:13px;line-height:1.7;color:var(--ink-2);}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .nav-links{gap:20px;}
  .article-layout{grid-template-columns:minmax(0,1fr) 240px;gap:36px;}
}
@media (max-width:1023px){
  .nav-links{display:none;}
  .nav-toggle{display:grid;}
  .nav-actions .btn-sm{display:none;}
  .article-layout{grid-template-columns:minmax(0,1fr);gap:0;}
  .article-main{max-width:none;}
  .article-aside{order:-1;margin-bottom:28px;}
  .toc-card{position:static;border-radius:var(--r-md);}
  .toc-list{grid-template-columns:repeat(2,minmax(0,1fr));gap:0 18px;}
  .news-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .site-footer{margin-top:64px;padding-top:48px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767px){
  .container{padding:0 20px;}
  .article-top{padding-top:24px;}
  .article-title{font-size:26px;line-height:1.3;}
  .article-body{font-size:16px;line-height:1.8;}
  .article-body h2{font-size:21px;}
  .article-body h3{font-size:18px;}
  .article-cover img{aspect-ratio:16/9;}
  .toc-list{grid-template-columns:minmax(0,1fr);}
  .news-grid{grid-template-columns:minmax(0,1fr);}
  .cta-inline{padding:22px;}
  .cta-inline .btn{width:100%;}
  .relate-head{flex-direction:column;align-items:flex-start;gap:8px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-brand p{max-width:none;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:10px;}
  .back-row .btn{width:100%;}
}
@media (max-width:479px){
  .article-title{font-size:23px;}
  .brand-text{font-size:15px;}
  .article-meta{font-size:13px;gap:8px 14px;}
  .meta-divider{display:none;}
}

/* roulang page: category1 */
:root{
  --brand-900:#0B3B31;
  --brand-700:#12604F;
  --brand-500:#1E8A72;
  --brand-300:#5FC7AC;
  --grad-brand:linear-gradient(135deg,#12604F 0%,#1E8A72 55%,#5FC7AC 100%);
  --accent-500:#E08A2B;
  --accent-200:#FBE7C9;
  --bg:#FAF8F3;
  --surface:#FFFFFF;
  --surface-2:#F3F1EA;
  --ink:#14201C;
  --ink-2:#5A6A64;
  --line:#E4E0D6;
  --ok:#1E8A72;
  --warn:#C4452E;
  --info:#2F6FB0;
  --r-sm:10px;
  --r-md:16px;
  --r-lg:24px;
  --r-xl:32px;
  --sh-1:0 2px 8px -4px rgba(20,32,28,.12);
  --sh-2:0 8px 24px -8px rgba(20,32,28,.14);
  --sh-3:0 24px 60px -24px rgba(11,59,49,.28);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  background:var(--bg);
  color:var(--ink);
  font-size:16px;
  line-height:1.75;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:14px;padding:14px 28px;font-size:15px;font-weight:700;
  border:1.5px solid transparent;cursor:pointer;white-space:nowrap;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
}
.btn-primary{
  background:var(--grad-brand);background-size:170% 170%;background-position:0% 50%;
  color:#fff;box-shadow:0 12px 26px -14px rgba(18,96,79,.75);
}
.btn-primary:hover{transform:translateY(-1px);background-position:70% 50%;box-shadow:0 18px 34px -14px rgba(18,96,79,.6)}
.btn-primary:active{transform:translateY(0);box-shadow:0 8px 18px -12px rgba(18,96,79,.7)}
.btn-ghost{background:#fff;border-color:var(--brand-700);color:var(--brand-900)}
.btn-ghost:hover{background:rgba(11,59,49,.06);transform:translateY(-1px)}
.btn-sm{padding:9px 18px;font-size:14px;border-radius:12px}
.btn-light{background:#fff;color:var(--brand-900);box-shadow:0 14px 30px -16px rgba(0,0,0,.5)}
.btn-light:hover{transform:translateY(-1px);box-shadow:0 20px 38px -16px rgba(0,0,0,.45)}
.link-arrow{display:inline-flex;align-items:center;gap:6px;color:var(--brand-700);font-weight:700;font-size:14px}
.link-arrow svg{width:16px;height:16px;transition:transform .2s ease}
.link-arrow:hover svg{transform:translateX(4px)}
.link-arrow:hover{text-decoration:underline;text-underline-offset:4px}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,0);
  border-bottom:1px solid transparent;
  transition:background .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.site-header.is-scrolled{
  background:rgba(255,255,255,.92);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  border-bottom-color:var(--line);
  box-shadow:0 8px 22px -18px rgba(20,32,28,.55);
}
.nav{display:flex;align-items:center;gap:26px;height:68px}
.brand{display:inline-flex;align-items:center;gap:10px;font-weight:800;color:var(--brand-900);letter-spacing:-.01em;flex:none}
.brand-mark{
  width:34px;height:34px;border-radius:11px;display:grid;place-items:center;
  background:var(--grad-brand);color:#fff;box-shadow:var(--sh-2);flex:none;
}
.brand-mark svg{width:18px;height:18px}
.brand-text{font-size:17px;line-height:1.2}
.nav-links{display:flex;align-items:center;gap:26px;margin-left:6px;margin-right:auto}
.nav-link{position:relative;font-size:15px;font-weight:500;color:var(--ink-2);padding:6px 2px;transition:color .2s ease}
.nav-link:hover{color:var(--brand-700)}
.nav-link.is-active{color:var(--brand-900);font-weight:700}
.nav-link.is-active::after{
  content:"";position:absolute;left:0;right:0;bottom:-4px;height:2px;border-radius:2px;background:var(--brand-500);
}
.nav-actions{display:flex;align-items:center;gap:12px;flex:none}
.icon-btn{
  width:38px;height:38px;border-radius:12px;border:1px solid var(--line);
  background:rgba(255,255,255,.72);color:var(--brand-700);
  display:grid;place-items:center;cursor:pointer;transition:.2s ease;
}
.icon-btn:hover{border-color:var(--brand-300);background:#fff;color:var(--brand-900);transform:translateY(-1px)}
.icon-btn svg{width:18px;height:18px}
.nav-toggle{display:none}

/* ---------- 移动抽屉 ---------- */
.drawer{position:fixed;inset:0;z-index:90;background:rgba(11,59,49,.45);opacity:0;visibility:hidden;transition:opacity .25s ease,visibility .25s ease}
.drawer.is-open{opacity:1;visibility:visible}
.drawer-panel{
  position:absolute;top:0;right:0;width:min(320px,86vw);height:100%;
  background:#fff;padding:22px;display:flex;flex-direction:column;gap:6px;
  transform:translateX(100%);transition:transform .28s ease;box-shadow:-20px 0 50px -30px rgba(11,59,49,.5);
}
.drawer.is-open .drawer-panel{transform:translateX(0)}
.drawer-close{align-self:flex-end;width:36px;height:36px;border-radius:11px;border:1px solid var(--line);display:grid;place-items:center;color:var(--brand-700);cursor:pointer}
.drawer-close svg{width:18px;height:18px}
.drawer-link{padding:13px 4px;font-size:16px;font-weight:600;color:var(--ink);border-bottom:1px solid var(--line)}
.drawer-link.is-active{color:var(--brand-700)}
.drawer .btn{margin-top:18px;width:100%}
.drawer-note{font-size:13px;color:var(--ink-2);margin-top:14px;line-height:1.7}

/* ---------- 分类首屏 ---------- */
.cat-hero{
  position:relative;overflow:hidden;
  padding:46px 0 52px;min-height:340px;display:flex;align-items:center;
  background:linear-gradient(158deg,#F1F7F4 0%,#FAF8F3 58%,#F6F3EA 100%);
  border-bottom:1px solid var(--line);
}
.cat-hero::before{
  content:"";position:absolute;top:-220px;right:-140px;width:560px;height:560px;border-radius:50%;
  background:radial-gradient(circle,rgba(30,138,114,.18),rgba(30,138,114,0) 70%);
  pointer-events:none;
}
.cat-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.05;
  background-image:linear-gradient(to right,#0B3B31 1px,transparent 1px),linear-gradient(to bottom,#0B3B31 1px,transparent 1px);
  background-size:24px 24px;
}
.cat-hero-inner{
  position:relative;z-index:2;
  display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);
  gap:48px;align-items:center;
}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:12px;color:var(--ink-2);margin-bottom:16px}
.breadcrumb a{color:var(--ink-2);transition:color .2s}
.breadcrumb a:hover{color:var(--brand-700)}
.breadcrumb span[aria-current]{color:var(--brand-700);font-weight:600}
.cat-hero h1{
  font-size:clamp(27px,3.3vw,40px);line-height:1.2;font-weight:800;letter-spacing:-.01em;
  margin:0 0 16px;max-width:16em;
}
.cat-lead{margin:0 0 22px;font-size:17px;color:var(--ink-2);max-width:34em;line-height:1.7}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px}
.tag{
  display:inline-flex;align-items:center;gap:6px;font-size:12.5px;font-weight:600;
  padding:6px 14px;border-radius:999px;background:rgba(30,138,114,.1);color:var(--brand-700);border:1px solid rgba(30,138,114,.16);
}
.tag-accent{background:var(--accent-200);color:#8A5212;border-color:rgba(224,138,43,.28)}
.cat-hero-media{
  position:relative;border-radius:var(--r-lg);overflow:hidden;height:236px;
  border:1px solid rgba(11,59,49,.1);box-shadow:var(--sh-3);background:var(--surface-2);
}
.cat-hero-media img{width:100%;height:100%;object-fit:cover}
.cat-hero-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(150deg,rgba(18,96,79,.34) 0%,rgba(95,199,172,.08) 60%,rgba(11,59,49,.22) 100%);
}
.hero-float{
  position:absolute;left:18px;bottom:18px;z-index:3;
  display:inline-flex;align-items:center;gap:8px;
  background:rgba(255,255,255,.95);border-radius:14px;padding:10px 14px;
  font-size:13px;font-weight:700;color:var(--brand-900);box-shadow:var(--sh-2);
}
.hero-float svg{width:15px;height:15px;color:var(--brand-500)}

/* ---------- 通用板块 ---------- */
.section{padding:96px 0}
.section--tight{padding:64px 0}
.section-head{max-width:740px;margin:0 0 40px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:700;
  letter-spacing:.12em;color:var(--brand-700);background:rgba(30,138,114,.1);
  border-radius:999px;padding:6px 14px;
}
.section-title{font-size:clamp(24px,2.6vw,32px);font-weight:700;letter-spacing:-.01em;margin:16px 0 12px;line-height:1.3}
.section-desc{margin:0;color:var(--ink-2);font-size:16px;max-width:40em}

/* ---------- 主体：条目 + 侧栏 ---------- */
.cat-layout{display:grid;grid-template-columns:minmax(0,1fr) 340px;gap:32px;align-items:start}
.cat-main{min-width:0}
.cat-main-head{margin-bottom:26px}
.cat-main-head h2{font-size:clamp(22px,2.3vw,28px);margin:0 0 10px;font-weight:700;line-height:1.35}
.cat-main-head p{margin:0;color:var(--ink-2);font-size:15px;max-width:38em}
.cat-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
.cat-card{
  position:relative;display:flex;flex-direction:column;gap:10px;
  padding:24px;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-lg);box-shadow:var(--sh-2);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.cat-card:hover{transform:translateY(-2px);border-color:var(--brand-300);box-shadow:var(--sh-3)}
.cat-card .num{
  font-variant-numeric:tabular-nums;font-size:13px;font-weight:800;
  letter-spacing:.1em;color:var(--brand-500);
}
.cat-card h3{margin:0;font-size:19px;font-weight:700;line-height:1.45}
.cat-card p{margin:0;font-size:14.5px;color:var(--ink-2);line-height:1.72}
.cat-card .cat-link{margin-top:auto;padding-top:6px;display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:700;color:var(--brand-700)}
.cat-card .cat-link svg{width:16px;height:16px;transition:transform .2s ease}
.cat-card:hover .cat-link svg{transform:translateX(4px)}
.cat-aside{position:sticky;top:92px;display:grid;gap:20px}
.aside-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:24px;box-shadow:var(--sh-2);
}
.aside-card h3{margin:0 0 16px;font-size:16px;font-weight:700}
.check-list{display:grid;gap:13px}
.check-list li{position:relative;padding-left:26px;font-size:14.5px;color:var(--ink-2);line-height:1.68}
.check-list li::before{
  content:"";position:absolute;left:0;top:7px;width:14px;height:14px;border-radius:50%;
  background:rgba(30,138,114,.14);border:2px solid var(--brand-500);
}
.aside-card--dark{
  background:var(--grad-brand);border:none;color:#fff;box-shadow:var(--sh-3);
  position:relative;overflow:hidden;
}
.aside-card--dark::after{
  content:"";position:absolute;right:-70px;top:-70px;width:200px;height:200px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,255,255,.22),rgba(255,255,255,0) 70%);
}
.aside-card--dark h3{color:#fff;position:relative;z-index:2}
.data-badge{display:flex;align-items:baseline;gap:6px;font-variant-numeric:tabular-nums;position:relative;z-index:2}
.data-badge .num{font-size:42px;font-weight:800;line-height:1;letter-spacing:-.02em}
.data-badge .unit{font-size:14px;font-weight:600;opacity:.85}
.badge-cap{position:relative;z-index:2;margin:8px 0 18px;font-size:13px;color:rgba(255,255,255,.82);line-height:1.6}
.dark-list{position:relative;z-index:2;display:grid;gap:10px}
.dark-list li{font-size:14px;color:rgba(255,255,255,.9);padding-left:18px;position:relative;line-height:1.65}
.dark-list li::before{content:"";position:absolute;left:0;top:9px;width:6px;height:6px;border-radius:50%;background:var(--brand-300)}

/* ---------- 图文分栏 ---------- */
.split{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:56px;align-items:center}
.split-media{
  border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line);
  box-shadow:var(--sh-3);background:var(--surface-2);
}
.split-media img{width:100%;aspect-ratio:16/11;object-fit:cover}
.split-text h2{font-size:clamp(23px,2.5vw,30px);margin:14px 0 14px;font-weight:700;line-height:1.35}
.split-text p{margin:0 0 18px;color:var(--ink-2);font-size:16px;line-height:1.8}
.step-mini{display:grid;gap:14px;margin-top:6px}
.step-mini li{display:flex;gap:14px;align-items:flex-start;font-size:15px;color:var(--ink-2);line-height:1.7}
.step-mini .dot{
  flex:none;width:26px;height:26px;border-radius:9px;display:grid;place-items:center;
  background:rgba(30,138,114,.12);color:var(--brand-700);font-size:12.5px;font-weight:800;
  font-variant-numeric:tabular-nums;
}
.step-mini b{color:var(--ink);font-weight:700}

/* ---------- FAQ ---------- */
.faq-wrap{background:var(--surface-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.faq-list{max-width:820px;margin:36px auto 0;border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 4px;text-align:left;font-size:17px;font-weight:600;cursor:pointer;line-height:1.6;
  transition:color .2s ease;
}
.faq-q:hover{color:var(--brand-700)}
.faq-q .ind{
  flex:none;width:26px;height:26px;border-radius:50%;border:1.5px solid var(--brand-500);
  color:var(--brand-700);display:grid;place-items:center;font-size:16px;line-height:1;
  transition:transform .25s ease,background .25s ease,color .25s ease;
}
.faq-q[aria-expanded="true"] .ind{background:var(--brand-500);color:#fff;transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease}
.faq-a p{margin:0;padding:0 4px 22px;color:var(--ink-2);font-size:15.5px;line-height:1.85}

/* ---------- CTA ---------- */
.cta-card{
  position:relative;overflow:hidden;
  background:var(--grad-brand);border-radius:var(--r-lg);
  padding:48px;display:flex;align-items:center;justify-content:space-between;gap:36px;
  color:#fff;box-shadow:var(--sh-3);
}
.cta-card::after{
  content:"";position:absolute;right:-90px;bottom:-140px;width:320px;height:320px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,255,255,.2),rgba(255,255,255,0) 70%);
}
.cta-card h2{margin:0 0 12px;font-size:clamp(22px,2.4vw,28px);font-weight:700;line-height:1.35;position:relative;z-index:2}
.cta-card p{margin:0;font-size:15px;color:rgba(255,255,255,.86);max-width:38em;line-height:1.75;position:relative;z-index:2}
.cta-card .btn{position:relative;z-index:2;flex:none}
.back-home{margin-top:36px;text-align:center}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--brand-900);color:#D8E8E1;padding:72px 0 0;margin-top:96px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:48px}
.footer-brand .brand{color:#fff}
.footer-brand .brand-text{color:#fff}
.footer-brand p{margin:16px 0 0;font-size:14px;line-height:1.8;color:rgba(216,232,225,.72);max-width:26em}
.footer-col h4{margin:0 0 16px;font-size:13px;font-weight:700;letter-spacing:.12em;color:#fff}
.footer-col ul{display:grid;gap:10px}
.footer-col a{font-size:14px;color:rgba(216,232,225,.76);transition:color .2s ease}
.footer-col a:hover{color:var(--brand-300)}
.footer-contact li{font-size:14px;color:rgba(216,232,225,.76);line-height:1.7}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);padding:22px 0;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(216,232,225,.68);
}
.to-top{display:inline-flex;align-items:center;gap:6px;color:var(--brand-300);font-weight:600;transition:opacity .2s ease}
.to-top:hover{opacity:.85}
.to-top svg{width:16px;height:16px}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .container{padding:0 24px}
  .cat-layout{grid-template-columns:minmax(0,1fr) 306px;gap:26px}
  .split{gap:40px}
}
@media (max-width:1023px){
  .nav-links{display:none}
  .nav-toggle{display:grid}
  .nav-actions .btn{display:none}
  .section{padding:64px 0}
  .cat-hero{padding:36px 0 44px;min-height:auto}
  .cat-hero-inner{grid-template-columns:1fr;gap:28px}
  .cat-hero-media{height:220px}
  .cat-layout{grid-template-columns:1fr}
  .cat-aside{position:static}
  .split{grid-template-columns:1fr;gap:32px}
  .split-media{order:-1}
  .cta-card{flex-direction:column;align-items:flex-start;padding:36px}
}
@media (max-width:767px){
  .container{padding:0 20px}
  .section{padding:48px 0}
  .section-head{margin-bottom:28px}
  .cat-list{grid-template-columns:1fr}
  .cat-hero h1{font-size:27px}
  .cat-lead{font-size:16px}
  .cat-hero-media{height:190px}
  .faq-q{font-size:16px;padding:18px 2px}
  .faq-a p{font-size:15px;padding-bottom:18px}
  .cta-card{padding:28px}
  .cta-card .btn{width:100%}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .site-footer{padding-top:56px;margin-top:64px}
  .btn{width:100%}
  .nav-actions .icon-btn:not(.nav-toggle){display:none}
  .btn-sm{width:auto}
}
@media (max-width:479px){
  .cat-hero h1{font-size:24px}
  .hero-tags{gap:8px}
  .tag{font-size:12px;padding:5px 11px}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .data-badge .num{font-size:34px}
}

/* roulang page: category2 */
:root{
  --brand-900:#0B3B31;
  --brand-700:#12604F;
  --brand-500:#1E8A72;
  --brand-300:#5FC7AC;
  --grad-brand:linear-gradient(135deg,#12604F 0%,#1E8A72 55%,#5FC7AC 100%);
  --accent-500:#E08A2B;
  --accent-200:#FBE7C9;
  --bg:#FAF8F3;
  --surface:#FFFFFF;
  --surface-2:#F3F1EA;
  --ink:#14201C;
  --ink-2:#5A6A64;
  --line:#E4E0D6;
  --ok:#1E8A72;
  --warn:#C4452E;
  --info:#2F6FB0;
  --r-sm:10px;
  --r-md:16px;
  --r-lg:24px;
  --r-xl:32px;
  --sh-1:0 2px 8px -4px rgba(20,32,28,.10);
  --sh-2:0 8px 24px -8px rgba(20,32,28,.14);
  --sh-3:0 24px 60px -24px rgba(11,59,49,.28);
  --nav-h:68px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.75;
  letter-spacing:.01em;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
svg{display:block}
:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}

/* ===== header / nav ===== */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(250,248,243,0);
  border-bottom:1px solid transparent;
  transition:background .25s ease,box-shadow .25s ease,border-color .25s ease,backdrop-filter .25s ease;
}
.site-header.is-scrolled{
  background:rgba(255,255,255,.92);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  border-bottom-color:var(--line);
  box-shadow:0 6px 20px -14px rgba(11,59,49,.45);
}
.nav{height:var(--nav-h);display:flex;align-items:center;gap:14px}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:34px;height:34px;border-radius:var(--r-sm);
  background:var(--grad-brand);color:#fff;
  display:grid;place-items:center;
  box-shadow:var(--sh-2);
}
.brand-mark svg{width:18px;height:18px}
.brand-text{font-size:17px;font-weight:800;letter-spacing:-.01em;color:var(--brand-900)}
.nav-links{display:flex;align-items:center;gap:26px;margin-left:26px}
.nav-link{
  position:relative;font-size:15px;color:var(--ink-2);
  padding:6px 0;transition:color .2s ease;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:-18px;height:2px;
  background:var(--brand-500);border-radius:2px;transform:scaleX(0);
  transform-origin:left;transition:transform .25s ease;
}
.nav-link:hover{color:var(--brand-700)}
.nav-link.is-active{color:var(--brand-900);font-weight:600}
.nav-link.is-active::after{transform:scaleX(1)}
.nav-actions{display:flex;align-items:center;gap:10px;margin-left:auto}
.icon-btn{
  width:38px;height:38px;border-radius:var(--r-sm);
  display:grid;place-items:center;color:var(--brand-700);
  border:1px solid var(--line);background:rgba(255,255,255,.7);
  transition:background .2s ease,border-color .2s ease,transform .2s ease,color .2s ease;
}
.icon-btn svg{width:18px;height:18px}
.icon-btn:hover{background:#fff;border-color:var(--brand-300);color:var(--brand-900);transform:translateY(-1px)}
.nav-toggle{display:none}

/* ===== buttons ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 28px;border-radius:var(--r-md);
  font-size:15px;font-weight:600;line-height:1.2;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
  border:1.5px solid transparent;
}
.btn svg{width:16px;height:16px}
.btn-primary{
  background:var(--grad-brand);background-size:160% 160%;background-position:0% 50%;
  color:#fff;box-shadow:var(--sh-2);
}
.btn-primary:hover{transform:translateY(-1px);background-position:100% 50%;box-shadow:var(--sh-3)}
.btn-primary:active{transform:translateY(0);box-shadow:var(--sh-1)}
.btn-ghost{background:var(--surface);border-color:var(--brand-700);color:var(--brand-900)}
.btn-ghost:hover{background:rgba(11,59,49,.05);transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(0)}
.btn-accent{background:var(--accent-500);color:#241503;box-shadow:0 12px 30px -16px rgba(224,138,43,.9)}
.btn-accent:hover{transform:translateY(-1px);background:#d47f22}
.btn-sm{padding:10px 20px;font-size:14px;border-radius:12px}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--brand-700);font-weight:600;font-size:15px;
  border-bottom:1px solid transparent;padding-bottom:2px;
  transition:gap .2s ease,color .2s ease,border-color .2s ease;
}
.link-arrow svg{width:15px;height:15px;transition:transform .2s ease}
.link-arrow:hover{gap:10px;color:var(--brand-900);border-bottom-color:var(--brand-300)}

/* ===== drawer ===== */
.drawer-scrim{
  position:fixed;inset:0;z-index:70;background:rgba(11,59,49,.4);
  opacity:0;pointer-events:none;transition:opacity .3s ease;
}
.drawer-scrim.is-open{opacity:1;pointer-events:auto}
.drawer{
  position:fixed;top:0;right:0;bottom:0;z-index:80;
  width:min(88vw,340px);background:var(--surface);
  box-shadow:var(--sh-3);
  transform:translateX(100%);transition:transform .32s cubic-bezier(.4,.1,.2,1);
  display:flex;flex-direction:column;gap:6px;padding:22px;
  overflow-y:auto;
}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:10px}
.drawer-title{font-size:13px;letter-spacing:.12em;color:var(--ink-2);text-transform:uppercase}
.drawer a.drawer-link{
  display:block;padding:13px 4px;font-size:16px;color:var(--ink);
  border-bottom:1px solid var(--line);transition:color .2s ease,padding-left .2s ease;
}
.drawer a.drawer-link:hover{color:var(--brand-700);padding-left:8px}
.drawer a.drawer-link.is-active{color:var(--brand-900);font-weight:700}
.drawer-cta{margin-top:16px}
.drawer-cta .btn{width:100%}
.drawer-foot{margin-top:16px;font-size:13px;color:var(--ink-2);line-height:1.8}
body.no-scroll{overflow:hidden}

/* ===== category hero ===== */
.cat-hero{
  position:relative;overflow:hidden;
  padding:bullet;
  padding:26px 0 60px;
  background:linear-gradient(180deg,#F1F7F3 0%,#FAF8F3 92%);
}
.cat-hero::after{
  content:"";position:absolute;right:-160px;top:-180px;width:520px;height:520px;
  background:radial-gradient(circle,rgba(95,199,172,.32) 0%,rgba(95,199,172,0) 68%);
  pointer-events:none;
}
.crumbs{display:flex;align-items:center;gap:8px;font-size:12px;color:var(--ink-2);margin-bottom:22px}
.crumbs a{color:var(--ink-2);transition:color .2s ease}
.crumbs a:hover{color:var(--brand-700)}
.crumbs span[aria-current]{color:var(--brand-700);font-weight:600}
.cat-hero-grid{
  position:relative;z-index:1;
  display:grid;grid-template-columns:minmax(0,1.32fr) minmax(0,.88fr);
  gap:48px;align-items:center;
}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;
  background:var(--accent-200);color:#8A5310;
  font-size:12px;font-weight:700;letter-spacing:.06em;
  margin-bottom:16px;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent-500)}
.cat-hero h1{
  font-size:clamp(28px,3.4vw,42px);
  font-weight:800;line-height:1.18;letter-spacing:-.01em;
  color:var(--brand-900);
}
.cat-hero-lead{
  margin-top:16px;font-size:17px;line-height:1.7;color:var(--ink-2);
  max-width:34em;
}
.hero-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:20px}
.hero-tags span{
  font-size:12px;font-weight:600;color:var(--brand-700);
  background:rgba(30,138,114,.08);
  border:1px solid rgba(30,138,114,.16);
  padding:5px 12px;border-radius:999px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.cat-hero-media{
  position:relative;border-radius:var(--r-lg);overflow:hidden;
  box-shadow:var(--sh-3);background:var(--surface-2);
}
.cat-hero-media img{width:100%;height:240px;object-fit:cover}
.cat-hero-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(140deg,rgba(18,96,79,.34),rgba(95,199,172,.12));
}
.media-badge{
  position:absolute;left:16px;bottom:16px;z-index:2;
  background:rgba(255,255,255,.96);border-radius:var(--r-md);
  padding:10px 16px;box-shadow:var(--sh-2);
  display:flex;align-items:baseline;gap:8px;
}
.media-badge strong{
  font-size:22px;font-weight:800;color:var(--brand-900);
  font-variant-numeric:tabular-nums;
}
.media-badge span{font-size:12px;color:var(--ink-2)}

/* ===== generic section ===== */
.section{padding:96px 0}
.section-head{max-width:760px;margin-bottom:40px}
.section-head h2{
  font-size:clamp(24px,2.6vw,32px);font-weight:700;line-height:1.3;
  letter-spacing:-.01em;color:var(--brand-900);
}
.section-head p{margin-top:12px;font-size:16px;color:var(--ink-2)}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}

/* ===== timeline ===== */
.timeline{position:relative;padding-left:64px;max-width:940px}
.timeline::before{
  content:"";position:absolute;left:23px;top:12px;bottom:12px;width:2px;
  background:linear-gradient(180deg,var(--brand-300) 0%,rgba(95,199,172,.14) 100%);
  border-radius:2px;
}
.tl-item{position:relative;margin-bottom:24px}
.tl-item:last-child{margin-bottom:0}
.tl-node{
  position:absolute;left:-64px;top:2px;
  width:48px;height:48px;border-radius:50%;
  background:var(--surface);border:2px solid var(--brand-300);
  color:var(--brand-700);font-size:13px;font-weight:800;letter-spacing:.04em;
  display:grid;place-items:center;
  box-shadow:var(--sh-1);
  font-variant-numeric:tabular-nums;
  transition:border-color .2s ease,color .2s ease,transform .2s ease;
}
.tl-item:hover .tl-node{border-color:var(--brand-500);color:var(--brand-900);transform:scale(1.05)}
.tl-card{
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-lg);padding:24px 26px;
  box-shadow:var(--sh-1);
  transition:border-color .2s ease,box-shadow .2s ease,transform .2s ease;
}
.tl-card:hover{border-color:var(--brand-300);box-shadow:var(--sh-2);transform:translateY(-2px)}
.tl-card h3{font-size:19px;font-weight:700;color:var(--brand-900);margin-bottom:8px}
.tl-card p{font-size:15.5px;color:var(--ink-2);line-height:1.78}
.tl-points{margin-top:14px;display:flex;flex-wrap:wrap;gap:8px}
.tl-points li{
  font-size:13px;color:var(--brand-700);
  background:var(--surface-2);border-radius:999px;
  padding:5px 12px;
}
.tl-note{
  margin-top:12px;padding:10px 14px;border-left:3px solid var(--accent-500);
  background:#FDF6EC;border-radius:0 var(--r-sm) var(--r-sm) 0;
  font-size:13.5px;color:#7A4E13;line-height:1.7;
}

/* ===== risk grid ===== */
.risk-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.risk-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:26px;box-shadow:var(--sh-1);
  transition:border-color .2s ease,box-shadow .2s ease,transform .2s ease;
}
.risk-card:hover{border-color:var(--brand-300);box-shadow:var(--sh-2);transform:translateY(-2px)}
.risk-icon{
  width:44px;height:44px;border-radius:var(--r-md);
  background:rgba(30,138,114,.1);color:var(--brand-700);
  display:grid;place-items:center;margin-bottom:16px;
}
.risk-icon svg{width:22px;height:22px}
.risk-card h3{font-size:18px;font-weight:700;color:var(--brand-900);margin-bottom:8px}
.risk-card p{font-size:15px;color:var(--ink-2);line-height:1.78}
.risk-card .risk-tip{
  margin-top:14px;font-size:13.5px;color:var(--brand-700);font-weight:600;
}

/* ===== split info ===== */
.split-info{
  display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.1fr);
  gap:56px;align-items:center;
}
.split-media{
  border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-2);
  background:var(--surface-2);
}
.split-media img{width:100%;height:340px;object-fit:cover}
.split-copy h2{
  font-size:clamp(23px,2.4vw,30px);font-weight:700;line-height:1.32;
  color:var(--brand-900);letter-spacing:-.01em;
}
.split-copy p{margin-top:14px;font-size:16px;color:var(--ink-2);line-height:1.8}
.check-list{margin-top:20px;display:grid;gap:12px}
.check-list li{
  display:flex;gap:12px;align-items:flex-start;
  font-size:15px;color:var(--ink);
}
.check-list .dot{
  flex:0 0 auto;width:20px;height:20px;border-radius:50%;
  background:rgba(30,138,114,.12);color:var(--brand-700);
  display:grid;place-items:center;margin-top:3px;
}
.check-list .dot svg{width:12px;height:12px}

/* ===== faq ===== */
.faq{max-width:820px;margin:0 auto;border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:22px 4px;text-align:left;
  font-size:17px;font-weight:600;color:var(--ink);
  transition:color .2s ease;
}
.faq-q:hover{color:var(--brand-700)}
.faq-ind{
  flex:0 0 auto;width:28px;height:28px;border-radius:50%;
  border:1.5px solid var(--line);color:var(--brand-700);
  display:grid;place-items:center;
  transition:background .25s ease,border-color .25s ease,color .25s ease,transform .25s ease;
}
.faq-ind svg{width:14px;height:14px}
.faq-item.is-open .faq-ind{
  background:var(--brand-500);border-color:var(--brand-500);color:#fff;transform:rotate(180deg);
}
.faq-a{max-height:0;overflow:hidden;transition:max-height .24s ease}
.faq-a-inner{padding:0 44px 22px 4px;font-size:15.5px;color:var(--ink-2);line-height:1.82}

/* ===== cta band ===== */
.cta-band{
  position:relative;overflow:hidden;
  background:var(--grad-brand);
  border-radius:var(--r-lg);
  padding:44px 44px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  box-shadow:var(--sh-3);
}
.cta-band::after{
  content:"";position:absolute;right:-90px;top:-120px;width:380px;height:380px;
  background:radial-gradient(circle,rgba(255,255,255,.22),rgba(255,255,255,0) 70%);
}
.cta-band-text{position:relative;z-index:1;max-width:640px}
.cta-band h2{font-size:clamp(22px,2.4vw,29px);font-weight:700;color:#fff;line-height:1.35}
.cta-band p{margin-top:10px;font-size:15.5px;color:rgba(255,255,255,.86);line-height:1.75}
.cta-band .btn{position:relative;z-index:1;flex:0 0 auto}
.back-home{margin-top:32px;text-align:center}

/* ===== footer ===== */
.site-footer{background:var(--brand-900);color:rgba(255,255,255,.78);padding:64px 0 28px;margin-top:96px}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;
  gap:40px;padding-bottom:40px;border-bottom:1px solid rgba(255,255,255,.14);
}
.footer-brand .brand-text{color:#fff}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.8;color:rgba(255,255,255,.66);max-width:30em}
.footer-col h4{
  font-size:13px;font-weight:700;letter-spacing:.12em;
  color:rgba(255,255,255,.55);margin-bottom:16px;
}
.footer-col ul{display:grid;gap:10px}
.footer-col a{font-size:14.5px;color:rgba(255,255,255,.78);transition:color .2s ease,padding-left .2s ease}
.footer-col a:hover{color:var(--brand-300);padding-left:4px}
.footer-contact li{font-size:14px;color:rgba(255,255,255,.66);line-height:1.7}
.footer-bottom{
  padding-top:24px;display:flex;align-items:center;justify-content:space-between;
  gap:16px;flex-wrap:wrap;font-size:13px;color:rgba(255,255,255,.55);
}
.to-top{display:inline-flex;align-items:center;gap:6px;color:rgba(255,255,255,.75);transition:color .2s ease}
.to-top svg{width:14px;height:14px}
.to-top:hover{color:var(--brand-300)}

/* ===== responsive ===== */
@media (max-width:1199px){
  .nav-links{gap:20px;margin-left:18px}
}
@media (max-width:1023px){
  .nav-links{display:none}
  .nav-toggle{display:grid}
  .cat-hero-grid{grid-template-columns:1fr;gap:28px}
  .cat-hero-media img{height:260px}
  .section{padding:64px 0}
  .split-info{grid-template-columns:1fr;gap:28px}
  .split-media img{height:280px}
  .cta-band{flex-direction:column;align-items:flex-start;padding:36px 30px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .site-footer{margin-top:64px}
}
@media (max-width:767px){
  .container{padding:0 20px}
  .cat-hero{padding:18px 0 44px}
  .cat-hero-lead{font-size:16px}
  .hero-actions{gap:10px}
  .hero-actions .btn{width:100%}
  .section{padding:52px 0}
  .timeline{padding-left:52px}
  .timeline::before{left:19px}
  .tl-node{left:-52px;width:40px;height:40px;font-size:12px}
  .tl-card{padding:20px}
  .risk-grid{grid-template-columns:1fr}
  .cta-band{padding:30px 22px;border-radius:var(--r-lg)}
  .cta-band .btn{width:100%}
  .faq-a-inner{padding-right:8px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
}
@media (max-width:479px){
  .brand-text{font-size:15px}
  .cat-hero h1{font-size:27px}
  .media-badge{padding:8px 12px}
  .media-badge strong{font-size:19px}
  .tl-points li{font-size:12px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}

/* roulang page: category3 */
:root{
  --brand-900:#0B3B31;
  --brand-700:#12604F;
  --brand-500:#1E8A72;
  --brand-300:#5FC7AC;
  --grad-brand:linear-gradient(135deg,#12604F 0%,#1E8A72 55%,#5FC7AC 100%);
  --accent-500:#E08A2B;
  --accent-200:#FBE7C9;
  --bg:#FAF8F3;
  --surface:#FFFFFF;
  --surface-2:#F3F1EA;
  --ink:#14201C;
  --ink-2:#5A6A64;
  --line:#E4E0D6;
  --ok:#1E8A72;
  --warn:#C4452E;
  --info:#2F6FB0;
  --r-sm:10px;
  --r-md:16px;
  --r-lg:24px;
  --r-xl:32px;
  --sh-1:0 2px 8px -4px rgba(20,32,28,.10);
  --sh-2:0 8px 24px -8px rgba(20,32,28,.14);
  --sh-3:0 24px 60px -24px rgba(11,59,49,.28);
  --container:1200px;
  --nav-h:68px;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  background:var(--bg);
  color:var(--ink);
  font-size:16px;
  line-height:1.75;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,h5,p{margin:0;}
:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px;border-radius:6px;}
::selection{background:rgba(30,138,114,.18);}

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

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 28px;border-radius:999px;
  font-size:15px;font-weight:600;line-height:1.2;
  transition:transform .18s ease,box-shadow .18s ease,background-color .18s ease,border-color .18s ease,color .18s ease;
  border:1.5px solid transparent;white-space:nowrap;
}
.btn svg{width:16px;height:16px;flex:none;}
.btn-primary{background:var(--grad-brand);color:#fff;box-shadow:var(--sh-2);}
.btn-primary:hover{transform:translateY(-1px);box-shadow:var(--sh-3);}
.btn-primary:active{transform:translateY(0);box-shadow:var(--sh-1);}
.btn-ghost{background:var(--surface);color:var(--brand-700);border-color:var(--brand-700);}
.btn-ghost:hover{background:rgba(11,59,49,.05);transform:translateY(-1px);}
.btn-ghost:active{transform:translateY(0);background:rgba(11,59,49,.09);}
.btn-sm{padding:9px 18px;font-size:14px;}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--brand-700);font-weight:600;font-size:14px;
  transition:gap .18s ease,color .18s ease;
}
.link-arrow svg{width:15px;height:15px;transition:transform .18s ease;}
.link-arrow:hover{gap:10px;color:var(--brand-500);}
.link-arrow:hover svg{transform:translateX(2px);}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(250,248,243,.82);
  backdrop-filter:blur(0);
  border-bottom:1px solid transparent;
  transition:background-color .25s ease,border-color .25s ease,box-shadow .25s ease,backdrop-filter .25s ease;
}
.site-header.is-scrolled{
  background:rgba(255,255,255,.92);
  backdrop-filter:blur(12px);
  border-bottom-color:var(--line);
  box-shadow:0 6px 18px -14px rgba(11,59,49,.5);
}
.nav{display:flex;align-items:center;gap:32px;min-height:var(--nav-h);}
.brand{display:inline-flex;align-items:center;gap:10px;flex:none;}
.brand-mark{
  width:36px;height:36px;border-radius:12px;
  background:var(--grad-brand);color:#fff;
  display:inline-flex;align-items:center;justify-content:center;
  box-shadow:0 8px 18px -10px rgba(11,59,49,.7);
}
.brand-mark svg{width:20px;height:20px;}
.brand-text{font-size:17px;font-weight:800;letter-spacing:.01em;color:var(--brand-900);}
.nav-links{display:flex;align-items:center;gap:4px;flex:1;}
.nav-link{
  position:relative;padding:10px 14px;border-radius:var(--r-sm);
  font-size:15px;font-weight:500;color:var(--ink-2);
  transition:color .18s ease,background-color .18s ease;
}
.nav-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:4px;height:2px;border-radius:2px;
  background:var(--brand-500);transform:scaleX(0);transform-origin:left center;
  transition:transform .22s ease;
}
.nav-link:hover{color:var(--brand-700);background:rgba(30,138,114,.07);}
.nav-link:hover::after,.nav-link.is-active::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--brand-900);font-weight:700;}
.nav-actions{display:flex;align-items:center;gap:10px;margin-left:auto;}
.icon-btn{
  width:38px;height:38px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  color:var(--brand-700);background:rgba(255,255,255,.7);
  border:1px solid var(--line);
  transition:background-color .18s ease,color .18s ease,border-color .18s ease,transform .18s ease;
}
.icon-btn svg{width:18px;height:18px;}
.icon-btn:hover{background:var(--brand-900);color:#fff;border-color:var(--brand-900);transform:translateY(-1px);}
.nav-toggle{display:none;}

/* ---------- 移动端抽屉 ---------- */
.drawer-mask{
  position:fixed;inset:0;background:rgba(11,59,49,.44);
  opacity:0;visibility:hidden;transition:opacity .3s ease,visibility .3s ease;z-index:70;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.mobile-drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(340px,86vw);
  background:var(--surface);z-index:80;
  transform:translateX(102%);transition:transform .32s cubic-bezier(.4,.1,.2,1);
  box-shadow:var(--sh-3);display:flex;flex-direction:column;
  padding:22px 22px 28px;overflow-y:auto;
}
.mobile-drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px;}
.drawer-title{font-size:13px;letter-spacing:.12em;color:var(--ink-2);font-weight:600;}
.drawer-close{width:36px;height:36px;border-radius:50%;background:var(--surface-2);display:inline-flex;align-items:center;justify-content:center;color:var(--brand-900);}
.drawer-close svg{width:16px;height:16px;}
.drawer-links{display:flex;flex-direction:column;gap:4px;margin-bottom:22px;}
.drawer-link{
  padding:13px 14px;border-radius:var(--r-md);font-size:15px;font-weight:500;color:var(--ink);
  border:1px solid transparent;transition:background-color .18s ease,border-color .18s ease,color .18s ease;
}
.drawer-link:hover{background:var(--surface-2);border-color:var(--line);}
.drawer-link.is-active{background:rgba(30,138,114,.1);color:var(--brand-900);font-weight:700;border-color:rgba(30,138,114,.22);}
.drawer-cta{width:100%;margin-bottom:20px;}
.drawer-info{border-top:1px solid var(--line);padding-top:18px;font-size:13px;color:var(--ink-2);line-height:1.9;}

/* ---------- 分类页首屏 ---------- */
.page-hero{
  position:relative;overflow:hidden;
  background:
    radial-gradient(920px 420px at 88% -10%,rgba(30,138,114,.14),transparent 70%),
    radial-gradient(620px 320px at 4% 110%,rgba(224,138,43,.1),transparent 68%),
    linear-gradient(180deg,#F7F5EE 0%,var(--bg) 100%);
  border-bottom:1px solid var(--line);
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(18,96,79,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(18,96,79,.045) 1px,transparent 1px);
  background-size:24px 24px;pointer-events:none;
}
.page-hero-inner{
  position:relative;
  display:grid;grid-template-columns:minmax(0,1.35fr) minmax(0,1fr);
  gap:48px;align-items:center;
  padding-top:44px;padding-bottom:44px;
  min-height:340px;
}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:12px;color:var(--ink-2);margin-bottom:16px;}
.breadcrumb a{transition:color .18s ease;}
.breadcrumb a:hover{color:var(--brand-500);}
.breadcrumb span[aria-current]{color:var(--ink-2);}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:999px;
  background:var(--accent-200);color:#8A5210;
  font-size:12px;font-weight:700;letter-spacing:.04em;
  border:1px solid rgba(224,138,43,.28);
}
.page-hero h1{
  margin:16px 0 14px;
  font-size:42px;line-height:1.18;font-weight:800;letter-spacing:-.01em;color:var(--brand-900);
  max-width:16em;
}
.page-hero-lead{font-size:17px;line-height:1.75;color:var(--ink-2);max-width:38em;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:26px;}
.page-hero-media{
  position:relative;border-radius:var(--r-lg);overflow:hidden;
  box-shadow:var(--sh-3);background:var(--surface-2);
  aspect-ratio:16/11;
}
.page-hero-media img{width:100%;height:100%;object-fit:cover;}
.page-hero-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(135deg,rgba(18,96,79,.42) 0%,rgba(30,138,114,.16) 60%,rgba(95,199,172,.06) 100%);
}
.hero-media-note{
  position:absolute;left:16px;bottom:16px;right:16px;z-index:2;
  background:rgba(255,255,255,.94);border-radius:var(--r-md);
  padding:12px 14px;font-size:13px;color:var(--brand-900);
  display:flex;align-items:center;gap:8px;font-weight:600;
  box-shadow:var(--sh-2);
}
.hero-media-note svg{width:16px;height:16px;flex:none;color:var(--brand-500);}

/* ---------- 数据徽章行 ---------- */
.stat-strip{border-bottom:1px solid var(--line);background:var(--surface);}
.stat-row{
  display:grid;grid-template-columns:repeat(4,1fr);gap:20px;
  padding:22px 0;
}
.data-badge{
  display:flex;align-items:center;gap:12px;
  padding:14px 18px;border-radius:var(--r-md);
  border:1px solid var(--line);background:var(--surface);
  box-shadow:var(--sh-1);
  transition:border-color .2s ease,box-shadow .2s ease,transform .2s ease;
}
.data-badge:hover{border-color:var(--brand-300);box-shadow:var(--sh-2);transform:translateY(-2px);}
.data-badge .num{
  font-size:30px;font-weight:800;line-height:1;color:var(--brand-700);
  font-variant-numeric:tabular-nums;letter-spacing:-.01em;
}
.data-badge .num em{font-style:normal;font-size:14px;font-weight:700;margin-left:2px;color:var(--brand-500);}
.data-badge .lbl{font-size:12px;color:var(--ink-2);line-height:1.5;}

/* ---------- 板块通用 ---------- */
.section{padding:76px 0;}
.section-tight{padding:48px 0;}
.section-head{max-width:720px;margin-bottom:36px;}
.section-head h2{
  font-size:30px;line-height:1.28;font-weight:700;color:var(--brand-900);letter-spacing:-.005em;
}
.section-head p{margin-top:12px;font-size:16px;color:var(--ink-2);}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}

/* ---------- 条目卡 ---------- */
.group{margin-bottom:44px;}
.group:last-child{margin-bottom:0;}
.group-head{display:flex;align-items:center;gap:12px;margin-bottom:20px;}
.group-head h3{font-size:19px;font-weight:700;color:var(--brand-900);}
.group-line{flex:1;height:1px;background:var(--line);}
.group-count{
  font-size:12px;font-weight:700;color:var(--brand-700);
  background:rgba(30,138,114,.1);border:1px solid rgba(30,138,114,.2);
  padding:3px 10px;border-radius:999px;
}
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;}
.cat-card{
  position:relative;display:flex;flex-direction:column;gap:10px;
  padding:22px 22px 20px;border-radius:var(--r-lg);
  background:var(--surface);border:1px solid var(--line);
  box-shadow:var(--sh-1);
  transition:border-color .2s ease,box-shadow .2s ease,transform .2s ease;
}
.cat-card:hover{border-color:var(--brand-300);box-shadow:var(--sh-2);transform:translateY(-2px);}
.cat-card:active{transform:translateY(0);box-shadow:var(--sh-1);}
.cat-index{
  display:inline-flex;align-items:center;justify-content:center;
  width:38px;height:38px;border-radius:12px;
  background:rgba(30,138,114,.1);color:var(--brand-700);
  font-size:13px;font-weight:800;font-variant-numeric:tabular-nums;
  border:1px solid rgba(30,138,114,.18);
}
.cat-card h4{font-size:16.5px;font-weight:700;line-height:1.45;color:var(--ink);}
.cat-card p{font-size:14px;line-height:1.7;color:var(--ink-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.cat-card .link-arrow{margin-top:auto;padding-top:4px;}

/* ---------- 四步自查 ---------- */
.steps-panel{
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-xl);padding:36px;box-shadow:var(--sh-2);
  position:relative;overflow:hidden;
}
.steps-panel::before{
  content:"";position:absolute;right:-90px;top:-90px;width:260px;height:260px;border-radius:50%;
  background:radial-gradient(circle,rgba(30,138,114,.16),transparent 70%);
}
.step-row{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;position:relative;}
.step-item{position:relative;padding-right:12px;}
.step-num{
  font-size:34px;font-weight:800;line-height:1;color:rgba(18,96,79,.16);
  font-variant-numeric:tabular-nums;letter-spacing:-.02em;
}
.step-item h4{font-size:16px;font-weight:700;margin:10px 0 8px;color:var(--brand-900);}
.step-item p{font-size:14px;line-height:1.7;color:var(--ink-2);}
.step-item:not(:last-child)::after{
  content:"";position:absolute;right:0;top:8px;bottom:8px;width:1px;background:var(--line);
}

/* ---------- 图文区 ---------- */
.split{
  display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.06fr);
  gap:48px;align-items:center;
}
.split-media{
  border-radius:var(--r-lg);overflow:hidden;background:var(--surface-2);
  box-shadow:var(--sh-2);aspect-ratio:4/3;position:relative;
}
.split-media img{width:100%;height:100%;object-fit:cover;}
.split-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(150deg,rgba(18,96,79,.34),rgba(95,199,172,.05));
}
.split-copy h2{font-size:28px;line-height:1.32;font-weight:700;color:var(--brand-900);}
.split-copy > p{margin-top:12px;color:var(--ink-2);font-size:16px;}
.check-list{margin-top:22px;display:flex;flex-direction:column;gap:12px;}
.check-list li{display:flex;gap:12px;font-size:15px;line-height:1.7;color:var(--ink);}
.check-list li svg{width:20px;height:20px;flex:none;color:var(--brand-500);margin-top:3px;}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:820px;margin:0 auto;}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item:first-child{border-top:1px solid var(--line);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 4px;text-align:left;
  font-size:17px;font-weight:600;color:var(--ink);
  transition:color .18s ease;
}
.faq-q:hover{color:var(--brand-700);}
.faq-icon{
  width:28px;height:28px;flex:none;border-radius:50%;
  border:1.5px solid var(--line);color:var(--brand-700);
  display:inline-flex;align-items:center;justify-content:center;
  transition:transform .24s ease,background-color .24s ease,border-color .24s ease,color .24s ease;
}
.faq-icon svg{width:14px;height:14px;}
.faq-item.is-open .faq-q{color:var(--brand-900);}
.faq-item.is-open .faq-icon{background:var(--brand-500);border-color:var(--brand-500);color:#fff;transform:rotate(45deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .24s ease;}
.faq-a-inner{padding:0 44px 22px 4px;font-size:15.5px;line-height:1.85;color:var(--ink-2);}
html:not(.js) .faq-a{max-height:none;}

/* ---------- CTA 大卡 ---------- */
.cta-band{
  position:relative;overflow:hidden;
  background:var(--grad-brand);
  border-radius:var(--r-lg);
  padding:40px 44px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  box-shadow:var(--sh-3);color:#fff;
}
.cta-band::before{
  content:"";position:absolute;right:-80px;top:-120px;width:340px;height:340px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,255,255,.24),transparent 68%);
}
.cta-band h2{position:relative;font-size:26px;line-height:1.35;font-weight:700;color:#fff;}
.cta-band p{position:relative;margin-top:10px;font-size:15px;line-height:1.7;color:rgba(255,255,255,.86);max-width:44em;}
.cta-band .btn-light{
  position:relative;flex:none;
  background:#fff;color:var(--brand-700);border-radius:999px;
  padding:14px 28px;font-weight:700;font-size:15px;
  display:inline-flex;align-items:center;gap:8px;
  transition:transform .18s ease,box-shadow .18s ease;
  box-shadow:0 16px 32px -18px rgba(0,0,0,.6);
}
.cta-band .btn-light:hover{transform:translateY(-1px);box-shadow:0 22px 40px -20px rgba(0,0,0,.6);}
.cta-band .btn-light svg{width:16px;height:16px;}
.back-home{display:flex;justify-content:center;margin-top:26px;}

/* ---------- 表单 ---------- */
.contact-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:48px;align-items:start;}
.contact-copy h2{font-size:28px;line-height:1.32;font-weight:700;color:var(--brand-900);}
.contact-copy p{margin-top:12px;color:var(--ink-2);font-size:16px;}
.contact-meta{margin-top:24px;display:flex;flex-direction:column;gap:10px;font-size:14px;color:var(--ink-2);}
.contact-meta li{display:flex;gap:10px;align-items:flex-start;}
.contact-meta svg{width:17px;height:17px;flex:none;color:var(--brand-500);margin-top:3px;}
.form-card{
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-lg);padding:28px;box-shadow:var(--sh-3);
}
.field{margin-bottom:18px;}
.field label{display:block;font-size:13px;font-weight:600;color:var(--ink-2);margin-bottom:7px;}
.field input,.field select,.field textarea{
  width:100%;min-height:48px;padding:12px 14px;
  font:inherit;font-size:15px;color:var(--ink);
  background:var(--surface);border:1.5px solid var(--line);border-radius:var(--r-sm);
  transition:border-color .18s ease,box-shadow .18s ease;
}
.field textarea{min-height:110px;resize:vertical;line-height:1.7;}
.field input:hover,.field select:hover,.field textarea:hover{border-color:#CFCABD;}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--brand-500);box-shadow:0 0 0 3px rgba(95,199,172,.24);
}
.field .hint{font-size:12px;color:var(--ink-2);margin-top:6px;}
.form-card .btn-primary{width:100%;}
.form-note{font-size:12px;color:var(--ink-2);margin-top:12px;text-align:center;line-height:1.7;}
.form-success{
  display:none;margin-top:14px;padding:12px 14px;border-radius:var(--r-sm);
  background:rgba(30,138,114,.1);border:1px solid rgba(30,138,114,.28);
  color:var(--brand-700);font-size:14px;
}
.form-success.is-show{display:block;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--brand-900);color:rgba(255,255,255,.78);margin-top:72px;padding:56px 0 24px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;}
.footer-brand .brand-text{color:#fff;}
.footer-brand .brand-mark{background:rgba(255,255,255,.12);box-shadow:none;}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.85;color:rgba(255,255,255,.66);max-width:26em;}
.footer-col h4{font-size:13px;letter-spacing:.12em;color:rgba(255,255,255,.55);font-weight:700;margin-bottom:16px;}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col a{font-size:14px;color:rgba(255,255,255,.78);transition:color .18s ease;}
.footer-col a:hover{color:var(--brand-300);}
.footer-contact li{font-size:14px;line-height:1.7;color:rgba(255,255,255,.7);}
.footer-bottom{
  margin-top:40px;padding-top:20px;border-top:1px solid rgba(255,255,255,.14);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.6);
}
.to-top{display:inline-flex;align-items:center;gap:6px;color:rgba(255,255,255,.78);transition:color .18s ease;}
.to-top svg{width:15px;height:15px;}
.to-top:hover{color:var(--brand-300);}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .nav-links{display:none;}
  .nav-toggle{display:inline-flex;}
  .nav-actions .btn-sm{display:none;}
  .page-hero h1{font-size:38px;}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .step-row{grid-template-columns:repeat(2,minmax(0,1fr));}
  .step-item:not(:last-child)::after{display:none;}
}
@media (max-width:1023px){
  .page-hero-inner{grid-template-columns:1fr;gap:28px;padding-top:32px;padding-bottom:36px;min-height:0;}
  .page-hero-media{aspect-ratio:16/9;max-height:280px;}
  .section{padding:56px 0;}
  .stat-row{grid-template-columns:repeat(2,1fr);}
  .split{grid-template-columns:1fr;gap:28px;}
  .split-media{aspect-ratio:16/10;}
  .contact-grid{grid-template-columns:1fr;gap:28px;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767px){
  .container{padding:0 20px;}
  .page-hero h1{font-size:30px;}
  .page-hero-lead{font-size:15.5px;}
  .hero-actions{flex-direction:column;align-items:stretch;}
  .hero-actions .btn{width:100%;}
  .section{padding:44px 0;}
  .section-head h2{font-size:24px;}
  .card-grid{grid-template-columns:1fr;}
  .step-row{grid-template-columns:1fr;gap:18px;}
  .step-item{padding-right:0;padding-bottom:16px;border-bottom:1px solid var(--line);}
  .step-item:last-child{border-bottom:0;padding-bottom:0;}
  .steps-panel{padding:24px;}
  .split-copy h2,.contact-copy h2{font-size:23px;}
  .cta-band h2{font-size:22px;}
  .cta-band .btn-light{width:100%;justify-content:center;}
  .faq-q{font-size:15.5px;padding:16px 2px;}
  .faq-a-inner{padding-right:10px;font-size:15px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:479px){
  .page-hero h1{font-size:27px;}
  .stat-row{grid-template-columns:1fr;}
  .data-badge .num{font-size:26px;}
  .form-card{padding:20px;}
  .cta-band{padding:24px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important;}
  html{scroll-behavior:auto;}
}