/* roulang page: index */
:root{
  --c-ink:#16211F;
  --c-ink-2:#4E5F5B;
  --c-ink-3:#7C8A86;
  --c-line:#E3DFD6;
  --c-bg:#F7F5F0;
  --c-surface:#FFFFFF;
  --c-brand:#22635F;
  --c-brand-d:#17433F;
  --c-brand-l:#EAF1EF;
  --c-accent:#D97A34;
  --c-accent-d:#C16A29;
  --c-accent-l:#FBEEE2;
  --c-ok:#2E7D5B;
  --c-warn:#C0503A;
  --c-focus:rgba(34,99,95,.28);
  --r-card:14px;
  --r-kv:18px;
  --r-btn:10px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(22,33,31,.04);
  --sh-2:0 12px 32px rgba(22,33,31,.10);
  --sp-section:96px;
  --font-sans:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16.5px;
  line-height:1.85;
  letter-spacing:.01em;
  color:var(--c-ink);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
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:0;list-style:none}
figure{margin:0}
.mono{font-variant-numeric:tabular-nums;font-feature-settings:"tnum"}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
:focus-visible{outline:2px solid var(--c-brand);outline-offset:2px;box-shadow:0 0 0 4px var(--c-focus);border-radius:6px}
::selection{background:var(--c-brand-l);color:var(--c-brand-d)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15.5px;font-weight:600;letter-spacing:.02em;
  border:1px solid transparent;cursor:pointer;
  transition:background-color .2s ease,color .2s ease,border-color .2s ease,transform .16s ease,box-shadow .2s ease;
}
.btn-primary{background:var(--c-accent);color:#fff;box-shadow:0 1px 2px rgba(22,33,31,.06)}
.btn-primary:hover{background:var(--c-accent-d);transform:translateY(-1px)}
.btn-primary:active{transform:translateY(0);box-shadow:none}
.btn-ghost{background:transparent;color:var(--c-brand);border-color:var(--c-brand)}
.btn-ghost:hover{background:var(--c-brand-l)}
.btn-ghost:active{background:#DBE8E5}
.btn-block{width:100%}
.btn[disabled],.btn.is-disabled{opacity:.5;cursor:not-allowed;transform:none}
.link-more{display:inline-flex;align-items:center;gap:6px;color:var(--c-brand);font-size:15px;font-weight:600;border-bottom:1px solid transparent;transition:border-color .2s ease,color .2s ease}
.link-more:hover{border-bottom-color:var(--c-brand)}
.link-more svg{transition:transform .2s ease}
.link-more:hover svg{transform:translateX(3px)}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:90;
  background:var(--c-surface);
  border-bottom:1px solid var(--c-line);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:0 2px 8px rgba(22,33,31,.08)}
.nav-inner{display:flex;align-items:center;gap:28px;height:74px}
.brand{display:flex;flex-direction:column;justify-content:center;line-height:1.15;flex-shrink:0}
.brand-main{font-size:19.5px;font-weight:700;color:var(--c-brand-d);letter-spacing:.02em}
.brand-sub{font-size:11px;color:var(--c-ink-3);letter-spacing:.22em;margin-top:3px}
.nav-search{position:relative;flex:1;max-width:420px;min-width:200px}
.nav-search svg{position:absolute;left:15px;top:50%;transform:translateY(-50%);color:var(--c-ink-3);pointer-events:none}
.nav-search input{
  width:100%;height:44px;border-radius:var(--r-pill);
  border:1px solid var(--c-line);background:var(--c-bg);
  padding:0 78px 0 44px;font-size:14.5px;color:var(--c-ink);
  transition:border-color .2s ease,background-color .2s ease,box-shadow .2s ease;
}
.nav-search input::placeholder{color:var(--c-ink-3)}
.nav-search input:focus{border-color:var(--c-brand);background:#fff;outline:none;box-shadow:0 0 0 4px var(--c-focus)}
.nav-kbd{
  position:absolute;right:14px;top:50%;transform:translateY(-50%);
  font-size:11.5px;color:var(--c-ink-3);border:1px solid var(--c-line);
  border-radius:6px;padding:1px 6px;background:#fff;letter-spacing:.04em;
}
.nav-links{display:flex;align-items:center;gap:22px;margin-left:auto}
.nav-links a{
  font-size:15px;color:var(--c-ink-2);padding:6px 0;
  border-bottom:2px solid transparent;white-space:nowrap;
  transition:color .2s ease,border-color .2s ease;
}
.nav-links a:hover{color:var(--c-brand)}
.nav-links a.active{color:var(--c-brand);border-bottom-color:var(--c-accent);font-weight:600}
.nav-toggle{
  display:none;margin-left:auto;width:44px;height:44px;align-items:center;justify-content:center;
  background:transparent;border:1px solid var(--c-line);border-radius:10px;cursor:pointer;color:var(--c-brand-d);
}
.nav-toggle:hover{background:var(--c-brand-l)}
.nav-scrim{display:none}

/* ---------- Hero ---------- */
.hero{padding:56px 0 72px;background:linear-gradient(180deg,#FFFFFF 0%,var(--c-bg) 100%)}
.hero-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:24px;align-items:center;min-height:520px}
.hero-copy{grid-column:span 6}
.hero-media{grid-column:span 6;position:relative;border-radius:var(--r-kv);overflow:hidden;aspect-ratio:16/11;background:var(--c-brand-l);box-shadow:var(--sh-2)}
.hero-media img{width:100%;height:100%;object-fit:cover}
.hero-media-mask{position:absolute;inset:0;background:linear-gradient(118deg,rgba(34,99,95,.66) 0%,rgba(34,99,95,.24) 58%,rgba(23,67,63,.52) 100%)}
.hero-float{
  position:absolute;left:20px;bottom:20px;right:20px;
  background:rgba(255,255,255,.94);border-radius:var(--r-card);
  padding:14px 18px;display:flex;gap:18px;align-items:center;backdrop-filter:blur(2px);
}
.hero-float div{flex:1}
.hero-float .hf-num{font-size:22px;font-weight:700;color:var(--c-brand-d);line-height:1.2}
.hero-float .hf-lab{font-size:12.5px;color:var(--c-ink-3);line-height:1.5}
.hero-float .hf-div{width:1px;align-self:stretch;background:var(--c-line);flex:0 0 1px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;color:var(--c-brand);background:var(--c-brand-l);
  border-radius:var(--r-pill);padding:5px 14px;letter-spacing:.06em;margin-bottom:18px;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--c-accent)}
h1{font-size:clamp(30px,4.4vw,46px);line-height:1.28;font-weight:700;letter-spacing:.01em;color:var(--c-ink)}
.hero-sub{margin-top:18px;font-size:17px;color:var(--c-ink-2);max-width:34em}
.hero-actions{display:flex;gap:14px;margin-top:28px;flex-wrap:wrap}
.hero-points{display:flex;flex-wrap:wrap;gap:10px 20px;margin-top:26px}
.hero-points li{display:flex;align-items:center;gap:8px;font-size:14.5px;color:var(--c-ink-2)}
.hero-points svg{color:var(--c-ok);flex-shrink:0}

/* ---------- 关键信息条 ---------- */
.keybar{border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line);background:var(--c-surface)}
.keybar-inner{display:flex;flex-wrap:wrap}
.keybar-item{flex:1 1 220px;padding:20px 24px;border-left:1px solid var(--c-line)}
.keybar-item:first-child{border-left:none;padding-left:0}
.keybar-item:last-child{padding-right:0}
.keybar-item dt{font-size:13px;color:var(--c-ink-3);letter-spacing:.08em;margin-bottom:4px}
.keybar-item dd{margin:0;font-size:16.5px;font-weight:600;color:var(--c-brand-d)}

/* ---------- 通用板块 ---------- */
.section{padding:var(--sp-section) 0}
.section-alt{background:var(--c-surface);border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line)}
.section-dark{background:var(--c-brand-d);color:#fff}
.section-head{max-width:760px;margin-bottom:44px}
.section-head h2{font-size:clamp(24px,3vw,34px);line-height:1.32;font-weight:700;letter-spacing:.01em}
.section-head p{margin-top:14px;font-size:16.5px;color:var(--c-ink-2)}
.section-dark .section-head h2{color:#fff}
.section-dark .section-head p{color:rgba(255,255,255,.76)}
.section-head--split{max-width:none;display:flex;align-items:flex-end;justify-content:space-between;gap:24px}
.section-head--split .sh-text{max-width:700px}

/* ---------- 时间线 ---------- */
.tl-group{border:1px solid var(--c-line);border-radius:var(--r-pill);display:inline-flex;align-items:center;gap:8px;padding:6px 16px;font-size:13.5px;color:var(--c-band,#22635F);background:var(--c-brand-l);margin-bottom:26px}
.timeline{position:relative;padding-left:0}
.timeline::before{content:"";position:absolute;left:96px;top:10px;bottom:10px;width:1px;background:var(--c-line)}
.tl-item{display:grid;grid-template-columns:96px 1fr;gap:28px;position:relative;padding-bottom:30px}
.tl-item:last-child{padding-bottom:0}
.tl-time{font-size:15px;font-weight:600;color:var(--c-ink-2);text-align:right;padding-top:2px}
.tl-body{position:relative;padding-left:28px}
.tl-body::before{
  content:"";position:absolute;left:-6px;top:9px;width:11px;height:11px;border-radius:50%;
  background:var(--c-accent);box-shadow:0 0 0 4px var(--c-accent-l);
}
.tl-body h3{font-size:18px;font-weight:600;line-height:1.5}
.tl-body p{margin-top:6px;font-size:15.5px;color:var(--c-ink-2)}

/* ---------- 亮点卡片 ---------- */
.hl-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.hl-grid .hl-card:nth-child(even){margin-top:44px}
.hl-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-1);transition:box-shadow .25s ease,transform .25s ease;
  display:flex;flex-direction:column;
}
.hl-card:hover{box-shadow:var(--sh-2);transform:translateY(-2px)}
.hl-card figure{aspect-ratio:4/3;overflow:hidden;background:var(--c-brand-l)}
.hl-card figure img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.hl-card:hover figure img{transform:scale(1.02)}
.hl-card-body{padding:22px 24px 26px}
.hl-card-body h3{font-size:18px;font-weight:600;line-height:1.5}
.hl-card-body p{margin-top:10px;font-size:15.5px;color:var(--c-ink-2)}
.hl-tag{display:inline-block;font-size:12.5px;color:var(--c-brand);border:1px solid var(--c-brand);border-radius:var(--r-pill);padding:2px 10px;margin-bottom:12px;letter-spacing:.04em}

/* ---------- 指标卡 ---------- */
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.stat-card{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.16);border-radius:var(--r-card);padding:24px}
.stat-num{font-size:30px;font-weight:700;color:#fff;line-height:1.2}
.stat-num small{font-size:14px;font-weight:600;margin-left:4px;color:var(--c-accent-l)}
.stat-lab{margin-top:8px;font-size:14.5px;color:rgba(255,255,255,.76)}
.section-dark .quote{margin-top:36px;border-left:3px solid var(--c-accent);padding-left:18px;font-size:15.5px;color:rgba(255,255,255,.82);max-width:760px}

/* ---------- 对比表 ---------- */
.cmp-wrap{overflow-x:auto;border:1px solid var(--c-line);border-radius:var(--r-card);background:var(--c-surface)}
table.cmp{width:100%;border-collapse:collapse;min-width:640px}
table.cmp th,table.cmp td{padding:16px 20px;text-align:left;border-bottom:1px solid var(--c-line);font-size:15.5px}
table.cmp thead th{font-size:14.5px;color:var(--c-ink-2);font-weight:600;background:var(--c-brand-l);letter-spacing:.04em}
table.cmp tbody th{font-weight:600;color:var(--c-ink)}
table.cmp tbody tr:last-child th,table.cmp tbody tr:last-child td{border-bottom:none}
table.cmp td{color:var(--c-ink-2)}
.ic-yes,.ic-no{display:inline-flex;align-items:center;justify-content:center;width:24px;height:24px;border-radius:50%}
.ic-yes{background:#E4F0EA;color:var(--c-ok)}
.ic-no{background:#F2F0EB;color:var(--c-ink-3)}
.cmp-note{margin-top:14px;font-size:14px;color:var(--c-ink-3)}
.cmp-cards{display:none}

/* ---------- 表单 CTA ---------- */
.cta-panel{background:var(--c-surface);border:1px solid var(--c-line);border-radius:18px;box-shadow:var(--sh-1);overflow:hidden}
.cta-grid{display:grid;grid-template-columns:5fr 7fr}
.cta-copy{padding:44px 40px;background:var(--c-brand);color:#fff}
.cta-copy h2{font-size:clamp(22px,2.4vw,28px);line-height:1.36;font-weight:700}
.cta-copy p{margin-top:14px;font-size:15.5px;color:rgba(255,255,255,.82)}
.cta-list{margin-top:24px}
.cta-list li{display:flex;gap:10px;align-items:flex-start;font-size:15px;color:rgba(255,255,255,.88);padding:8px 0;border-bottom:1px solid rgba(255,255,255,.14)}
.cta-list li:last-child{border-bottom:none}
.cta-list svg{flex-shrink:0;margin-top:5px;color:var(--c-accent-l)}
.cta-form{padding:40px 40px 44px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.field{margin-bottom:16px}
.field label{display:block;font-size:14px;color:var(--c-ink-2);margin-bottom:7px;font-weight:600}
.field input,.field select,.field textarea{
  width:100%;height:46px;border:1px solid var(--c-line);border-radius:var(--r-btn);
  background:var(--c-bg);padding:0 14px;font-size:15px;
  transition:border-color .2s ease,box-shadow .2s ease,background-color .2s ease;
}
.field textarea{height:auto;min-height:96px;padding:12px 14px;resize:vertical;line-height:1.7}
.field input::placeholder,.field textarea::placeholder{color:var(--c-ink-3)}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--c-brand);background:#fff;box-shadow:0 0 0 4px var(--c-focus)}
.field input:disabled,.field select:disabled,.field textarea:disabled{opacity:.6;cursor:not-allowed}
.form-hint{font-size:13px;color:var(--c-ink-3);margin-top:10px}
.form-actions{margin-top:8px}
.spin{display:none;width:14px;height:14px;border-radius:50%;border:2px solid rgba(255,255,255,.4);border-top-color:#fff;animation:spin .8s linear infinite}
.btn.is-loading .spin{display:inline-block}
.btn.is-loading{pointer-events:none;opacity:.85}
@keyframes spin{to{transform:rotate(360deg)}}

/* ---------- 最新信息 ---------- */
.post-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.post-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-1);transition:box-shadow .25s ease;
  display:flex;flex-direction:column;
}
.post-card:hover{box-shadow:var(--sh-2)}
.post-card:hover .post-body h3 a{color:var(--c-brand)}
.post-thumb{display:block;aspect-ratio:16/10;overflow:hidden;background:var(--c-brand-l)}
.post-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.post-card:hover .post-thumb img{transform:scale(1.02)}
.post-body{padding:20px 22px 24px;display:flex;flex-direction:column;flex:1}
.post-meta{display:flex;align-items:center;gap:12px;margin-bottom:12px}
.badge{display:inline-block;font-size:12.5px;color:var(--c-brand);border:1px solid var(--c-brand);border-radius:var(--r-pill);padding:2px 10px;line-height:1.6}
.post-time{font-size:13px;color:var(--c-ink-3)}
.post-body h3{font-size:17.5px;font-weight:600;line-height:1.5}
.post-body h3 a{transition:color .2s ease}
.post-body h3 a:hover{color:var(--c-brand)}
.post-body p{margin-top:10px;font-size:15px;color:var(--c-ink-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.empty-state{
  min-height:180px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;
  border:1px dashed var(--c-line);border-radius:var(--r-card);background:var(--c-surface);color:var(--c-ink-3);
}
.empty-state svg{color:var(--c-ink-3)}

/* ---------- FAQ ---------- */
.faq-list{max-width:880px}
.faq-item{border-bottom:1px solid var(--c-line)}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:20px;
  min-height:58px;padding:18px 0;font-size:17px;font-weight:600;color:var(--c-ink);
  transition:color .2s ease;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--c-brand)}
.faq-item summary .faq-ico{
  flex-shrink:0;width:26px;height:26px;border-radius:50%;border:1px solid var(--c-line);
  display:flex;align-items:center;justify-content:center;color:var(--c-brand);
  transition:transform .25s ease,background-color .25s ease,border-color .25s ease;
}
.faq-item[open] summary .faq-ico{transform:rotate(45deg);background:var(--c-brand-l);border-color:var(--c-brand)}
.faq-item .faq-answer{padding:2px 0 22px;font-size:15.5px;color:var(--c-ink-2);max-width:46em;background:linear-gradient(180deg,rgba(234,241,239,.55),rgba(234,241,239,0));border-radius:0 0 8px 8px;padding-left:0}
.faq-item .faq-answer p{margin:0}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-brand-d);color:rgba(255,255,255,.82);padding:64px 0 28px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand .fb-name{font-size:19px;font-weight:700;color:#fff;letter-spacing:.02em}
.footer-brand p{margin-top:14px;font-size:14.5px;color:rgba(255,255,255,.68);max-width:26em}
.footer-col h4{font-size:14px;color:#fff;letter-spacing:.1em;margin-bottom:16px;font-weight:600}
.footer-col li{margin-bottom:10px}
.footer-col a{font-size:14.5px;color:rgba(255,255,255,.76);transition:color .2s ease}
.footer-col a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px}
.footer-col address{font-style:normal;font-size:14.5px;color:rgba(255,255,255,.76);line-height:1.9}
.footer-bottom{margin-top:44px;padding-top:22px;border-top:1px solid rgba(255,255,255,.16);display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13.5px;color:rgba(255,255,255,.6)}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  :root{--sp-section:80px}
  .hero-grid{min-height:460px}
}
@media (max-width:1023px){
  :root{--sp-section:72px}
  .nav-inner{height:auto;flex-wrap:wrap;gap:14px;padding:12px 0}
  .brand{order:1}
  .nav-toggle{display:flex;order:2}
  .nav-search{order:3;flex:1 1 100%;max-width:none;min-width:0}
  .nav-kbd{display:none}
  .nav-links{
    position:fixed;top:0;right:0;height:100%;width:280px;max-width:82vw;
    background:var(--c-surface);border-left:1px solid var(--c-line);
    flex-direction:column;align-items:flex-start;gap:4px;margin:0;
    padding:88px 26px 32px;transform:translateX(100%);
    transition:transform .3s ease;box-shadow:-12px 0 32px rgba(22,33,31,.10);z-index:95;
  }
  .nav-links a{width:100%;padding:12px 0;font-size:16px;border-bottom:1px solid var(--c-line)}
  .nav-links a.active{border-bottom-color:var(--c-accent)}
  body.nav-open .nav-links{transform:translateX(0)}
  body.nav-open .nav-scrim{display:block;position:fixed;inset:0;background:rgba(22,33,31,.28);z-index:92}
  .hero-copy,.hero-media{grid-column:span 12}
  .hero-media{aspect-ratio:16/10}
  .hero{padding:40px 0 56px}
  .hl-grid{grid-template-columns:repeat(2,1fr)}
  .hl-grid .hl-card:nth-child(even){margin-top:24px}
  .stat-grid{grid-template-columns:repeat(2,1fr)}
  .cta-grid{grid-template-columns:1fr}
  .post-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  :root{--sp-section:60px}
  body{font-size:16px;line-height:1.8}
  .container{padding:0 20px}
  .keybar-item{flex:1 1 100%;border-left:none;border-top:1px solid var(--c-line);padding:16px 0}
  .keybar-item:first-child{border-top:none}
  .timeline::before{left:6px}
  .tl-item{grid-template-columns:1fr;gap:8px;padding-bottom:26px;padding-left:26px}
  .tl-time{text-align:left}
  .tl-body{padding-left:0}
  .tl-body::before{left:-26px;top:8px}
  .hl-grid{display:flex;overflow-x:auto;gap:16px;scroll-snap-type:x mandatory;padding-bottom:8px;margin:0 -20px;padding-left:20px;padding-right:20px}
  .hl-grid .hl-card{flex:0 0 84%;margin-top:0!important;scroll-snap-align:start}
  .stat-grid{grid-template-columns:1fr}
  .cmp-wrap{display:none}
  .cmp-cards{display:grid;gap:16px}
  .cmp-card{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);padding:20px;box-shadow:var(--sh-1)}
  .cmp-card h3{font-size:17px;font-weight:600;margin-bottom:12px}
  .cmp-card li{display:flex;justify-content:space-between;gap:14px;font-size:15px;color:var(--c-ink-2);padding:9px 0;border-bottom:1px solid var(--c-line)}
  .cmp-card li:last-child{border-bottom:none}
  .cmp-card.is-top{border-color:var(--c-accent);box-shadow:0 0 0 1px var(--c-accent) inset}
  .cta-copy,.cta-form{padding:28px 22px}
  .form-row{grid-template-columns:1fr}
  .post-grid{grid-template-columns:1fr}
  .hero-actions .btn{width:100%}
  .section-head--split{flex-direction:column;align-items:flex-start}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;gap:8px}
}
@media (max-width:480px){
  h1{font-size:28px}
  .hero-float{flex-direction:column;align-items:flex-start;gap:10px}
  .hero-float .hf-div{display:none}
  .brand-main{font-size:17.5px}
  .eyebrow{font-size:12.5px}
}

/* roulang page: article */
:root{
  --c-ink:#16211F;
  --c-ink-2:#4E5F5B;
  --c-ink-3:#7C8A86;
  --c-line:#E3DFD6;
  --c-bg:#F7F5F0;
  --c-surface:#FFFFFF;
  --c-brand:#22635F;
  --c-brand-d:#17433F;
  --c-brand-l:#EAF1EF;
  --c-accent:#D97A34;
  --c-accent-d:#C0672A;
  --c-accent-l:#FBEEE2;
  --c-ok:#2E7D5B;
  --c-warn:#C0503A;
  --c-focus:rgba(34,99,95,.28);
  --r-card:14px;
  --r-media:18px;
  --r-btn:10px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(22,33,31,.04);
  --sh-2:0 12px 32px rgba(22,33,31,.10);
  --container:1200px;
  --sp-xs:8px;
  --sp-s:12px;
  --sp-m:20px;
  --sp-l:32px;
  --sp-xl:56px;
  --sp-2xl:96px;
  --font-sans:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --font-num:"Inter",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-ink);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.85;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
body.nav-open{overflow:hidden;}
img{max-width:100%;display:block;border-style:none;}
a{color:var(--c-brand);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--c-brand-d);}
button,input,select,textarea{font:inherit;color:inherit;}
button{cursor:pointer;}
h1,h2,h3,h4{margin:0;letter-spacing:0;}
p{margin:0;}
ul,ol{margin:0;}
time,.num{font-variant-numeric:tabular-nums;font-family:var(--font-num);}
:focus-visible{outline:2px solid var(--c-brand);outline-offset:2px;border-radius:8px;box-shadow:0 0 0 4px var(--c-focus);}
::selection{background:var(--c-brand-l);}

.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;}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--c-surface);padding:10px 16px;border-radius:0 0 var(--r-btn) 0;z-index:200;}
.skip-link:focus{left:0;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;border-radius:var(--r-btn);
  border:1px solid transparent;font-size:16px;font-weight:600;
  transition:background .2s ease,color .2s ease,border-color .2s ease,transform .15s ease,box-shadow .2s ease;
}
.btn-primary{background:var(--c-accent);color:#fff;box-shadow:var(--sh-1);}
.btn-primary:hover{background:var(--c-accent-d);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-primary:active{transform:translateY(0);box-shadow:var(--sh-1);}
.btn-ghost{background:transparent;border-color:var(--c-brand);color:var(--c-brand);}
.btn-ghost:hover{background:var(--c-brand-l);color:var(--c-brand-d);}
.btn-ghost:active{background:#DDE9E7;}
.btn-block{width:100%;}
.btn[disabled],.btn:disabled{opacity:.55;pointer-events:none;}

.link-text{display:inline-flex;align-items:center;gap:6px;font-weight:600;color:var(--c-brand);border-bottom:1px solid transparent;transition:border-color .2s ease,color .2s ease;}
.link-text:hover{border-color:var(--c-brand);color:var(--c-brand-d);}

/* ---------- 徽章 / 标签 ---------- */
.pill{
  display:inline-flex;align-items:center;height:28px;padding:0 12px;border-radius:var(--r-pill);
  font-size:13px;font-weight:600;line-height:1;
  background:var(--c-accent-l);color:#8A4A15;border:1px solid rgba(217,122,52,.28);
}
.pill-brand{background:var(--c-brand-l);color:var(--c-brand);border-color:rgba(34,99,95,.22);}
.pill-ghost{background:rgba(255,255,255,.14);color:#fff;border-color:rgba(255,255,255,.38);}
.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:var(--r-pill);
  font-size:12px;font-weight:600;border:1px solid var(--c-line);color:var(--c-ink-2);background:var(--c-surface);
}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:90;
  background:var(--c-surface);
  border-bottom:1px solid var(--c-line);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:0 2px 8px rgba(22,33,31,.08);}
.nav-inner{display:flex;align-items:center;gap:20px;min-height:72px;}
.brand{display:flex;flex-direction:column;justify-content:center;line-height:1.25;flex:0 0 auto;}
.brand-main{font-size:18px;font-weight:700;color:var(--c-ink);letter-spacing:.02em;}
.brand-sub{font-size:12px;color:var(--c-ink-3);letter-spacing:.06em;}
.brand:hover .brand-main{color:var(--c-brand);}

.nav-search{
  display:flex;align-items:center;gap:8px;flex:1 1 320px;max-width:420px;
  height:44px;padding:0 12px;border-radius:var(--r-btn);
  background:var(--c-brand-l);border:1px solid var(--c-line);color:var(--c-ink-3);
  transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.nav-search:focus-within{border-color:var(--c-brand);background:var(--c-surface);box-shadow:0 0 0 4px var(--c-focus);}
.nav-search input{flex:1;min-width:0;border:0;background:transparent;outline:none;font-size:15px;color:var(--c-ink);}
.nav-search input::placeholder{color:var(--c-ink-3);}
.nav-kbd{flex:0 0 auto;font-size:12px;color:var(--c-ink-3);background:var(--c-surface);border:1px solid var(--c-line);border-radius:6px;padding:2px 6px;white-space:nowrap;}

.nav-links{display:flex;align-items:center;gap:2px;margin-left:auto;}
.nav-links a{
  position:relative;padding:8px 12px;border-radius:8px;
  color:var(--c-ink-2);font-size:15px;white-space:nowrap;
  transition:color .2s ease,background .2s ease;
}
.nav-links a:hover{color:var(--c-brand);background:var(--c-brand-l);}
.nav-links a.active{color:var(--c-brand);font-weight:600;}
.nav-links a.active::after{content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;border-radius:2px;background:var(--c-brand);}
.nav-links a:focus-visible{outline-offset:1px;}

.nav-toggle{
  display:none;align-items:center;justify-content:center;
  width:44px;height:44px;margin-left:auto;
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-btn);color:var(--c-ink);
  transition:background .2s ease,color .2s ease;
}
.nav-toggle:hover{background:var(--c-brand-l);color:var(--c-brand);}
.nav-scrim{position:fixed;inset:0;background:rgba(22,33,31,.38);z-index:80;}

/* ---------- 文章头图区 ---------- */
.article-hero{position:relative;overflow:hidden;background:var(--c-brand-d);}
.article-hero-bg{
  position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center;
  opacity:.42;
}
.article-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(105deg,rgba(23,67,63,.92) 0%,rgba(23,67,63,.72) 52%,rgba(34,99,95,.48) 100%);
}
.article-hero-inner{position:relative;z-index:2;padding:52px 24px 56px;max-width:900px;margin:0 auto;}
.breadcrumb{display:flex;align-items:center;flex-wrap:wrap;gap:8px;font-size:13px;color:rgba(255,255,255,.72);margin-bottom:20px;}
.breadcrumb a{color:rgba(255,255,255,.82);}
.breadcrumb a:hover{color:#fff;text-decoration:underline;}
.bc-sep{color:rgba(255,255,255,.42);}
.bc-now{color:rgba(255,255,255,.7);}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:18px;}
.article-hero h1{
  font-size:clamp(28px,4.2vw,44px);
  line-height:1.28;font-weight:700;color:#fff;
  letter-spacing:.005em;
}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-top:22px;font-size:14px;color:rgba(255,255,255,.78);}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:rgba(255,255,255,.45);}
.article-meta time{color:#fff;}

/* ---------- 主体布局 ---------- */
.page-main{padding:56px 0 96px;}
.article-layout{display:grid;grid-template-columns:minmax(0,8fr) minmax(0,4fr);gap:44px;align-items:start;}

.panel{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
}
.article-panel{padding:36px 40px 40px;}

.article-body-head{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-bottom:24px;padding-bottom:16px;border-bottom:1px solid var(--c-line);}
.article-body-head h2{font-size:20px;font-weight:600;color:var(--c-ink);}
.article-body-head span{font-size:13px;color:var(--c-ink-3);}

.article-content{max-width:780px;font-size:17px;line-height:1.85;color:var(--c-ink);}
.article-content > * + *{margin-top:1.2em;}
.article-content p{margin:0;color:var(--c-ink);}
.article-content h2{
  font-size:clamp(22px,2.6vw,30px);line-height:1.32;font-weight:700;color:var(--c-ink);
  margin-top:2em;padding-left:14px;border-left:4px solid var(--c-accent);
}
.article-content h3{font-size:20px;line-height:1.45;font-weight:600;margin-top:1.6em;color:var(--c-ink);}
.article-content h4{font-size:17px;font-weight:600;margin-top:1.3em;color:var(--c-ink-2);}
.article-content ul,.article-content ol{padding-left:1.3em;}
.article-content li{margin:.45em 0;}
.article-content li::marker{color:var(--c-brand);}
.article-content strong{font-weight:700;color:var(--c-ink);}
.article-content em{font-style:normal;background:linear-gradient(transparent 62%,rgba(217,122,52,.28) 62%);}
.article-content a{color:var(--c-brand);text-decoration:underline;text-underline-offset:3px;}
.article-content a:hover{color:var(--c-brand-d);}
.article-content blockquote{
  margin:1.6em 0;padding:16px 22px;background:var(--c-brand-l);
  border-left:4px solid var(--c-brand);border-radius:0 var(--r-card) var(--r-card) 0;
  color:var(--c-ink-2);font-size:16px;
}
.article-content img{border-radius:var(--r-media);margin:1.6em 0;}
.article-content figure{margin:1.6em 0;}
.article-content figcaption{font-size:13px;color:var(--c-ink-3);text-align:center;margin-top:10px;}
.article-content table{width:100%;border-collapse:collapse;font-size:15px;display:block;overflow-x:auto;}
.article-content th,.article-content td{border:1px solid var(--c-line);padding:10px 14px;text-align:left;white-space:nowrap;}
.article-content th{background:var(--c-brand-l);font-weight:600;color:var(--c-ink);}
.article-content hr{border:0;border-top:1px solid var(--c-line);margin:2.2em 0;}
.article-content code{background:var(--c-brand-l);border-radius:6px;padding:2px 6px;font-size:.92em;font-family:var(--font-num);}

/* ---------- 侧栏 ---------- */
.article-aside{display:grid;gap:20px;position:sticky;top:96px;}
.aside-card{padding:24px;}
.aside-card h3{font-size:16px;font-weight:600;color:var(--c-ink);margin-bottom:14px;}
.toc-list{list-style:none;padding:0;display:grid;gap:2px;}
.toc-list a{
  display:block;padding:9px 12px;border-radius:8px;font-size:14px;color:var(--c-ink-2);
  border-left:2px solid transparent;transition:background .2s ease,color .2s ease,border-color .2s ease;
}
.toc-list a:hover{background:var(--c-brand-l);color:var(--c-brand);border-left-color:var(--c-accent);}
.aside-note{font-size:13px;line-height:1.8;color:var(--c-ink-3);margin-top:14px;padding-top:14px;border-top:1px solid var(--c-line);}
.quick-links{list-style:none;padding:0;display:grid;gap:10px;}
.quick-links a{display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:14px;color:var(--c-ink-2);padding:8px 0;border-bottom:1px dashed var(--c-line);}
.quick-links li:last-child a{border-bottom:0;}
.quick-links a:hover{color:var(--c-brand);}
.quick-links svg{flex:0 0 auto;color:var(--c-brand);}

/* ---------- 标签区 ---------- */
.tag-section{margin-top:40px;padding-top:24px;border-top:1px solid var(--c-line);}
.tag-section h3{font-size:14px;font-weight:600;color:var(--c-ink-3);letter-spacing:.08em;margin-bottom:14px;}
.tag-list{display:flex;flex-wrap:wrap;gap:10px;}
.tag-list a{
  display:inline-flex;align-items:center;height:32px;padding:0 14px;border-radius:var(--r-pill);
  border:1px solid var(--c-line);background:var(--c-bg);font-size:13px;color:var(--c-ink-2);
  transition:border-color .2s ease,color .2s ease,background .2s ease;
}
.tag-list a:hover{border-color:var(--c-brand);color:var(--c-brand);background:var(--c-brand-l);}

/* ---------- 空态 ---------- */
.empty-state{
  min-height:200px;display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:14px;text-align:center;padding:40px 20px;
}
.empty-state svg{color:var(--c-ink-3);}
.empty-state h2{font-size:20px;font-weight:600;}
.empty-state p{font-size:15px;color:var(--c-ink-2);max-width:420px;}

/* ---------- 相关推荐 ---------- */
.section{padding:0;margin-top:72px;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:26px;}
.section-head h2{font-size:clamp(22px,2.6vw,30px);line-height:1.32;font-weight:700;}
.section-head p{font-size:14px;color:var(--c-ink-3);margin-top:6px;}
.rel-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.rel-card{
  display:flex;flex-direction:column;background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);
  transition:box-shadow .25s ease,border-color .25s ease,transform .25s ease;
}
.rel-card:hover{box-shadow:var(--sh-2);border-color:rgba(34,99,95,.28);transform:translateY(-2px);}
.rel-thumb{aspect-ratio:16/10;background:var(--c-brand-l);overflow:hidden;}
.rel-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease;}
.rel-card:hover .rel-thumb img{transform:scale(1.02);}
.rel-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1;}
.rel-body h3{font-size:17px;line-height:1.5;font-weight:600;color:var(--c-ink);}
.rel-card:hover .rel-body h3{color:var(--c-brand);}
.rel-body p{font-size:14px;line-height:1.75;color:var(--c-ink-2);}
.rel-meta{margin-top:auto;font-size:13px;color:var(--c-ink-3);display:flex;align-items:center;gap:8px;}

/* ---------- CTA 区块 ---------- */
.cta-band{
  margin-top:72px;background:var(--c-brand-d);border-radius:var(--r-media);overflow:hidden;position:relative;
}
.cta-band-bg{position:absolute;inset:0;background-image:url("/assets/images/backpic/back-3.webp");background-size:cover;background-position:center;opacity:.24;}
.cta-inner{position:relative;z-index:2;display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:32px;align-items:center;padding:44px 44px;}
.cta-inner h2{font-size:clamp(22px,2.6vw,30px);line-height:1.32;font-weight:700;color:#fff;}
.cta-inner p{margin-top:14px;font-size:15px;line-height:1.85;color:rgba(255,255,255,.8);}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:flex-end;}

/* ---------- FAQ ---------- */
.faq-list{margin-top:8px;}
.faq-item{border-bottom:1px solid var(--c-line);}
.faq-item:first-child{border-top:1px solid var(--c-line);}
.faq-item summary{
  list-style:none;cursor:pointer;min-height:56px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:14px 4px;font-size:16px;font-weight:600;color:var(--c-ink);
  transition:color .2s ease;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--c-brand);}
.faq-item summary::after{
  content:"";flex:0 0 auto;width:16px;height:16px;
  background:
    linear-gradient(var(--c-brand),var(--c-brand)) center/16px 1.6px no-repeat,
    linear-gradient(var(--c-brand),var(--c-brand)) center/1.6px 16px no-repeat;
  transition:transform .25s ease;
}
.faq-item[open] summary::after{transform:rotate(45deg);}
.faq-item .faq-answer{padding:2px 4px 18px;background:transparent;}
.faq-item[open] .faq-answer{background:rgba(234,241,239,.6);border-radius:0 0 10px 10px;padding:16px 18px 20px;}
.faq-answer p{font-size:15px;line-height:1.85;color:var(--c-ink-2);}

/* ---------- 返回入口 ---------- */
.back-row{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;margin-top:40px;padding-top:24px;border-top:1px solid var(--c-line);}
.back-row span{font-size:14px;color:var(--c-ink-3);}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-brand-d);color:rgba(255,255,255,.78);padding:64px 0 24px;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:32px;}
.fb-name{color:#fff;font-size:19px;font-weight:700;margin-bottom:12px;}
.footer-brand p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.72);}
.footer-col h4{color:#fff;font-size:15px;font-weight:600;margin:0 0 14px;}
.footer-col ul{list-style:none;padding:0;display:grid;gap:10px;}
.footer-col a{color:rgba(255,255,255,.78);font-size:14px;}
.footer-col a:hover{color:#fff;text-decoration:underline;}
.site-footer address{font-style:normal;font-size:14px;line-height:1.9;color:rgba(255,255,255,.72);}
.footer-bottom{
  margin-top:40px;padding-top:18px;border-top:1px solid rgba(255,255,255,.14);
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  font-size:13px;color:rgba(255,255,255,.6);
}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .article-layout{gap:32px;}
  .article-panel{padding:30px 30px 34px;}
}
@media (max-width:1023px){
  .nav-inner{flex-wrap:wrap;gap:12px;padding-bottom:12px;}
  .nav-toggle{display:inline-flex;}
  .nav-search{order:3;flex:1 1 100%;max-width:none;}
  .nav-links{
    position:fixed;top:0;right:0;left:auto;height:100%;width:min(300px,86vw);
    background:var(--c-surface);border-left:1px solid var(--c-line);
    flex-direction:column;align-items:stretch;gap:4px;margin:0;
    padding:88px 18px 24px;transform:translateX(102%);
    transition:transform .28s ease;z-index:85;overflow-y:auto;box-shadow:var(--sh-2);
  }
  .nav-links.open{transform:none;}
  .nav-links a{padding:12px 14px;font-size:16px;}
  .nav-links a.active::after{left:14px;right:auto;width:26px;bottom:6px;}
  .article-layout{grid-template-columns:minmax(0,1fr);}
  .article-aside{position:static;}
  .rel-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .cta-inner{grid-template-columns:minmax(0,1fr);padding:36px 30px;}
  .cta-actions{justify-content:flex-start;}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px;}
}
@media (max-width:767px){
  .container{padding:0 20px;}
  .article-hero-inner{padding:36px 20px 40px;}
  .page-main{padding:40px 0 64px;}
  .article-panel{padding:22px 20px 26px;}
  .article-content{font-size:16.5px;}
  .section{margin-top:56px;}
  .rel-grid{grid-template-columns:minmax(0,1fr);}
  .cta-band{margin-top:56px;}
  .cta-inner{padding:28px 22px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
  .back-row{flex-direction:column;align-items:flex-start;}
  .footer-grid{grid-template-columns:minmax(0,1fr);}
  .footer-bottom{flex-direction:column;}
  .article-meta{font-size:13px;gap:8px;}
}
@media (max-width:480px){
  .brand-main{font-size:16px;}
  .brand-sub{font-size:11px;}
  .nav-kbd{display:none;}
  .article-hero h1{font-size:26px;}
  .article-panel{padding:18px 16px 22px;}
  .aside-card{padding:18px;}
  .rel-body{padding:16px;}
}

/* roulang page: category1 */
:root{
  --c-ink:#16211F;
  --c-ink-2:#4E5F5B;
  --c-ink-3:#7C8A86;
  --c-line:#E3DFD6;
  --c-bg:#F7F5F0;
  --c-surface:#FFFFFF;
  --c-brand:#22635F;
  --c-brand-d:#17433F;
  --c-brand-l:#EAF1EF;
  --c-accent:#D97A34;
  --c-accent-l:#FBEEE2;
  --c-ok:#2E7D5B;
  --c-warn:#C0503A;
  --c-focus:rgba(34,99,95,.28);
  --r-card:14px;
  --r-media:18px;
  --r-btn:10px;
  --sh-1:0 1px 2px rgba(22,33,31,.04);
  --sh-2:0 12px 32px rgba(22,33,31,.10);
  --gap-desktop:24px;
  --gap-mobile:16px;
  --sec-space:96px;
  --font-sans:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}

*,*::before,*::after{box-sizing:border-box;}

html{-webkit-text-size-adjust:100%;}

body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16.5px;
  line-height:1.85;
  letter-spacing:.01em;
  color:var(--c-ink);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}

img{max-width:100%;display:block;border-style:none;}
a{color:var(--c-brand);text-decoration:none;}
a:hover{color:var(--c-brand-d);}
button,input,select,textarea{font:inherit;color:inherit;}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0;}
ul,ol{padding-left:1.2em;}
svg{display:block;}

:focus-visible{
  outline:2px solid var(--c-brand);
  outline-offset:2px;
  box-shadow:0 0 0 4px var(--c-focus);
  border-radius:6px;
}

.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;
}

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

/* ---------- Header / Nav ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:var(--c-surface);
  border-bottom:1px solid var(--c-line);
  transition:box-shadow .24s ease;
}
.site-header.is-scrolled{box-shadow:0 2px 8px rgba(22,33,31,.07);}

.nav-inner{
  display:flex;
  align-items:center;
  gap:28px;
  min-height:74px;
}

.brand{
  display:flex;
  flex-direction:column;
  justify-content:center;
  gap:2px;
  flex:0 0 auto;
  color:var(--c-ink);
  text-decoration:none;
}
.brand-main{
  font-size:18px;
  font-weight:700;
  letter-spacing:.01em;
  line-height:1.25;
}
.brand-sub{
  font-size:11.5px;
  letter-spacing:.08em;
  color:var(--c-ink-3);
}
.brand:hover .brand-main{color:var(--c-brand);}

.nav-toggle{
  display:none;
  width:44px;
  height:44px;
  align-items:center;
  justify-content:center;
  border:1px solid var(--c-line);
  border-radius:var(--r-btn);
  background:var(--c-surface);
  color:var(--c-ink-2);
  cursor:pointer;
  transition:background .18s ease,border-color .18s ease,color .18s ease;
}
.nav-toggle:hover{background:var(--c-brand-l);color:var(--c-brand);border-color:rgba(34,99,95,.24);}

.nav-search{
  flex:1 1 320px;
  max-width:400px;
  display:flex;
  align-items:center;
  gap:10px;
  height:44px;
  padding:0 12px;
  background:var(--c-bg);
  border:1px solid var(--c-line);
  border-radius:var(--r-btn);
  color:var(--c-ink-3);
  transition:border-color .18s ease,box-shadow .18s ease,background .18s ease;
}
.nav-search:focus-within{
  background:var(--c-surface);
  border-color:var(--c-brand);
  box-shadow:0 0 0 4px var(--c-focus);
}
.nav-search input{
  flex:1 1 auto;
  min-width:0;
  height:100%;
  border:0;
  background:transparent;
  font-size:14.5px;
  color:var(--c-ink);
  outline:none;
}
.nav-search input::placeholder{color:var(--c-ink-3);}
.nav-kbd{
  flex:0 0 auto;
  font-size:11px;
  letter-spacing:.02em;
  color:var(--c-ink-3);
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:6px;
  padding:2px 7px;
}

.nav-links{
  margin-left:auto;
  display:flex;
  align-items:center;
  gap:22px;
}
.nav-links a{
  position:relative;
  font-size:14.5px;
  color:var(--c-ink-2);
  padding:6px 2px 8px;
  border-bottom:2px solid transparent;
  transition:color .18s ease,border-color .18s ease;
}
.nav-links a:hover{color:var(--c-brand);}
.nav-links a.active{
  color:var(--c-brand);
  font-weight:600;
  border-bottom-color:var(--c-accent);
}

.nav-scrim{
  position:fixed;
  inset:0;
  background:rgba(22,33,31,.20);
  z-index:55;
}

/* ---------- Breadcrumb ---------- */
.crumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  padding:22px 0 0;
  font-size:13.5px;
  color:var(--c-ink-3);
}
.crumb a{color:var(--c-ink-2);}
.crumb a:hover{color:var(--c-brand);}
.crumb span[aria-current]{color:var(--c-ink-2);font-weight:600;}

/* ---------- Page hero ---------- */
.page-hero{
  padding:28px 0 0;
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:6px 14px;
  border-radius:999px;
  background:var(--c-brand-l);
  border:1px solid rgba(34,99,95,.14);
  color:var(--c-brand);
  font-size:13px;
  font-weight:600;
  letter-spacing:.02em;
}
.page-hero h1{
  margin-top:20px;
  font-size:clamp(30px,4.4vw,46px);
  line-height:1.28;
  font-weight:700;
  letter-spacing:.005em;
  max-width:900px;
}
.lede{
  margin-top:20px;
  max-width:780px;
  font-size:17px;
  line-height:1.85;
  color:var(--c-ink-2);
}
.meta-row{
  display:flex;
  flex-wrap:wrap;
  gap:12px 26px;
  margin-top:26px;
  padding-top:18px;
  border-top:1px solid var(--c-line);
  font-size:13.5px;
  color:var(--c-ink-3);
}
.meta-row .m{
  display:inline-flex;
  align-items:center;
  gap:7px;
}
.meta-row strong{
  font-weight:600;
  color:var(--c-ink-2);
  font-variant-numeric:tabular-nums;
}

.anchor-bar{
  display:flex;
  flex-wrap:wrap;
  margin-top:30px;
  border-top:1px solid var(--c-line);
  border-bottom:1px solid var(--c-line);
}
.anchor-bar a{
  padding:14px 20px;
  font-size:14px;
  color:var(--c-ink-2);
  border-right:1px solid var(--c-line);
  transition:color .18s ease,background .18s ease;
}
.anchor-bar a:hover{color:var(--c-brand);background:var(--c-brand-l);}

/* ---------- Article column ---------- */
.article-wrap{
  max-width:760px;
  margin:0 auto;
  padding:0 24px;
}
.article-body{
  padding-top:56px;
}
.prose h2{
  position:relative;
  margin:64px 0 20px;
  padding-left:18px;
  font-size:clamp(24px,3vw,32px);
  line-height:1.34;
  font-weight:700;
}
.prose h2::before{
  content:"";
  position:absolute;
  left:0;
  top:.18em;
  width:4px;
  height:1.02em;
  border-radius:2px;
  background:var(--c-accent);
}
.prose h2:first-child{margin-top:0;}
.prose h3{
  margin:34px 0 12px;
  font-size:20px;
  line-height:1.45;
  font-weight:600;
}
.prose p{
  margin:0 0 1.2em;
  color:var(--c-ink-2);
  font-size:16.5px;
  line-height:1.85;
}
.prose strong{color:var(--c-ink);font-weight:600;}

/* numbered step list */
.steps{
  counter-reset:step;
  list-style:none;
  padding:0;
  margin:26px 0 8px;
  border-top:1px solid var(--c-line);
}
.steps li{
  counter-increment:step;
  position:relative;
  padding:20px 8px 20px 62px;
  border-bottom:1px solid var(--c-line);
}
.steps li::before{
  content:counter(step,decimal-leading-zero);
  position:absolute;
  left:0;
  top:20px;
  width:40px;
  height:40px;
  border-radius:10px;
  background:var(--c-brand-l);
  color:var(--c-brand);
  font-size:14px;
  font-weight:700;
  font-variant-numeric:tabular-nums;
  display:flex;
  align-items:center;
  justify-content:center;
}
.steps li strong{
  display:block;
  font-size:17px;
  font-weight:600;
  color:var(--c-ink);
  margin-bottom:6px;
}
.steps li span{
  display:block;
  font-size:15.5px;
  line-height:1.8;
  color:var(--c-ink-2);
}

/* check list */
.check-list{
  list-style:none;
  padding:0;
  margin:24px 0 8px;
  display:grid;
  gap:14px;
}
.check-list li{
  display:flex;
  gap:12px;
  align-items:flex-start;
  font-size:15.5px;
  line-height:1.8;
  color:var(--c-ink-2);
  padding:14px 18px;
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  transition:box-shadow .2s ease,border-color .2s ease;
}
.check-list li:hover{
  box-shadow:var(--sh-2);
  border-color:rgba(34,99,95,.2);
}
.check-list .tick{
  flex:0 0 auto;
  width:22px;
  height:22px;
  margin-top:3px;
  border-radius:999px;
  background:var(--c-brand-l);
  color:var(--c-brand);
  display:flex;
  align-items:center;
  justify-content:center;
}
.check-list b{
  color:var(--c-ink);
  font-weight:600;
}

/* figure */
.figure{
  margin:34px 0;
}
.figure img{
  width:100%;
  aspect-ratio:16/9;
  object-fit:cover;
  border-radius:var(--r-media);
  border:1px solid var(--c-line);
  background:var(--c-brand-l);
}
.figure figcaption{
  margin-top:10px;
  font-size:13.5px;
  line-height:1.7;
  color:var(--c-ink-3);
  padding-left:2px;
  border-left:2px solid var(--c-line);
  padding-left:12px;
}

/* data band */
.data-band{
  margin:44px 0;
  background:var(--c-brand-d);
  color:#fff;
  border-radius:var(--r-card);
  padding:34px 32px;
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:20px;
}
.data-band .item{
  display:flex;
  flex-direction:column;
  gap:6px;
}
.data-band .item + .item{
  border-left:1px solid rgba(255,255,255,.16);
  padding-left:22px;
}
.data-band .num{
  font-size:34px;
  font-weight:700;
  line-height:1.1;
  font-variant-numeric:tabular-nums;
  letter-spacing:.01em;
}
.data-band .lbl{
  font-size:13.5px;
  line-height:1.6;
  color:rgba(255,255,255,.72);
}

/* note */
.note{
  margin:30px 0;
  padding:20px 22px;
  background:var(--c-accent-l);
  border-left:3px solid var(--c-accent);
  border-radius:0 var(--r-card) var(--r-card) 0;
  font-size:15.5px;
  line-height:1.8;
  color:#6B4520;
}
.note b{color:#5A3712;font-weight:600;}

/* ---------- FAQ ---------- */
.faq-block{
  margin-top:var(--sec-space);
  padding-top:56px;
  border-top:1px solid var(--c-line);
}
.section-head{
  margin-bottom:26px;
}
.section-head h2{
  font-size:clamp(24px,3vw,32px);
  line-height:1.34;
  font-weight:700;
}
.section-head p{
  margin-top:12px;
  font-size:15.5px;
  color:var(--c-ink-2);
  max-width:660px;
}
.faq{
  border-top:1px solid var(--c-line);
}
.faq details{
  border-bottom:1px solid var(--c-line);
}
.faq summary{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  min-height:58px;
  padding:16px 4px;
  cursor:pointer;
  font-size:17px;
  font-weight:600;
  color:var(--c-ink);
  list-style:none;
  transition:color .18s ease;
}
.faq summary::-webkit-details-marker{display:none;}
.faq summary:hover{color:var(--c-brand);}
.faq .ico{
  flex:0 0 auto;
  width:26px;
  height:26px;
  border-radius:999px;
  border:1px solid var(--c-line);
  color:var(--c-brand);
  display:flex;
  align-items:center;
  justify-content:center;
  transition:transform .24s ease,background .2s ease,border-color .2s ease;
}
.faq details[open] .ico{
  transform:rotate(45deg);
  background:var(--c-accent-l);
  border-color:rgba(217,122,52,.35);
  color:var(--c-accent);
}
.faq .ans{
  margin:0 4px 18px;
  padding:16px 18px;
  border-radius:var(--r-btn);
  background:rgba(234,241,239,.6);
  font-size:15.5px;
  line-height:1.85;
  color:var(--c-ink-2);
}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;
  margin-top:var(--sec-space);
  border-radius:var(--r-media);
  overflow:hidden;
  padding:60px 44px;
  color:#fff;
  background:#17433F url("/assets/images/backpic/back-3.webp") center/cover no-repeat;
}
.cta-band::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(120deg,rgba(23,67,63,.94),rgba(34,99,95,.72));
}
.cta-inner{
  position:relative;
  z-index:1;
  max-width:600px;
}
.cta-inner h2{
  font-size:clamp(24px,3vw,32px);
  line-height:1.34;
  font-weight:700;
  color:#fff;
}
.cta-inner p{
  margin-top:14px;
  font-size:15.5px;
  line-height:1.85;
  color:rgba(255,255,255,.82);
}
.cta-actions{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  margin-top:28px;
}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:44px;
  padding:0 24px;
  border-radius:var(--r-btn);
  border:1px solid transparent;
  font-size:15px;
  font-weight:600;
  letter-spacing:.01em;
  cursor:pointer;
  transition:background .18s ease,color .18s ease,transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.btn-primary{
  background:var(--c-accent);
  color:#fff;
}
.btn-primary:hover{
  background:#C56C2B;
  color:#fff;
  transform:translateY(-1px);
  box-shadow:0 8px 20px rgba(217,122,52,.26);
}
.btn-primary:active{transform:translateY(0);background:#B9631F;}

.btn-ghost{
  border-color:var(--c-brand);
  color:var(--c-brand);
  background:transparent;
}
.btn-ghost:hover{
  background:var(--c-brand-l);
  color:var(--c-brand-d);
}
.btn-ghost:active{background:#DDEAE7;}

.cta-band .btn-ghost{
  border-color:rgba(255,255,255,.6);
  color:#fff;
}
.cta-band .btn-ghost:hover{
  background:rgba(255,255,255,.14);
  border-color:#fff;
  color:#fff;
}

.back-row{
  display:flex;
  flex-wrap:wrap;
  gap:16px;
  align-items:center;
  margin-top:48px;
  padding-top:24px;
  border-top:1px solid var(--c-line);
  font-size:14px;
  color:var(--c-ink-3);
}
.back-row a{
  color:var(--c-brand);
  font-weight:600;
  border-bottom:1px solid rgba(34,99,95,.3);
}
.back-row a:hover{border-bottom-color:var(--c-brand);}

/* ---------- Footer ---------- */
.site-footer{
  margin-top:var(--sec-space);
  background:var(--c-brand-d);
  color:rgba(255,255,255,.86);
  padding:72px 0 0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.2fr;
  gap:40px;
  padding-bottom:48px;
}
.fb-name{
  color:#fff;
  font-size:18px;
  font-weight:700;
  margin-bottom:14px;
}
.footer-brand p{
  font-size:14px;
  line-height:1.85;
  color:rgba(255,255,255,.66);
  max-width:330px;
}
.footer-col h4{
  color:#fff;
  font-size:15px;
  font-weight:600;
  margin-bottom:16px;
}
.footer-col ul{
  list-style:none;
  padding:0;
  margin:0;
}
.footer-col li{margin-bottom:10px;}
.footer-col a{
  color:rgba(255,255,255,.72);
  font-size:14px;
  transition:color .18s ease;
}
.footer-col a:hover{color:#fff;text-decoration:underline;}
.footer-col address{
  font-style:normal;
  font-size:14px;
  line-height:1.95;
  color:rgba(255,255,255,.72);
}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  gap:12px;
  padding:20px 0 28px;
  border-top:1px solid rgba(255,255,255,.14);
  font-size:13px;
  color:rgba(255,255,255,.58);
}

/* ---------- Responsive ---------- */
@media (max-width:1023px){
  :root{--sec-space:72px;}
  .nav-inner{flex-wrap:wrap;gap:14px;padding-bottom:14px;}
  .brand{flex:1 1 auto;}
  .nav-toggle{display:inline-flex;order:2;}
  .nav-search{order:3;flex:1 1 100%;max-width:none;}
  .nav-kbd{display:none;}
  .nav-links{
    position:fixed;
    top:0;
    right:0;
    height:100vh;
    width:min(300px,82vw);
    margin-left:0;
    background:var(--c-surface);
    border-left:1px solid var(--c-line);
    flex-direction:column;
    align-items:flex-start;
    gap:0;
    padding:92px 24px 24px;
    transform:translateX(100%);
    transition:transform .28s ease;
    z-index:60;
    box-shadow:-12px 0 32px rgba(22,33,31,.10);
  }
  .nav-links.open{transform:translateX(0);}
  .nav-links a{
    width:100%;
    padding:15px 0;
    font-size:16px;
    border-bottom:1px solid var(--c-line);
  }
  .nav-links a.active{border-bottom-color:var(--c-line);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .data-band{grid-template-columns:repeat(2,1fr);gap:24px 20px;}
  .data-band .item:nth-child(3){border-left:0;padding-left:0;}
}

@media (max-width:767px){
  :root{--sec-space:60px;}
  .container{padding:0 20px;}
  .article-wrap{padding:0 20px;}
  .article-body{padding-top:42px;}
  .page-hero h1{font-size:clamp(26px,7vw,34px);}
  .lede{font-size:16px;}
  .anchor-bar a{padding:12px 14px;font-size:13.5px;}
  .prose h2{margin-top:48px;}
  .steps li{padding:18px 0 18px 54px;}
  .steps li::before{width:36px;height:36px;top:18px;}
  .cta-band{padding:40px 24px;}
  .cta-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;}
}

@media (max-width:520px){
  body{font-size:16px;}
  .data-band{grid-template-columns:1fr;padding:26px 22px;}
  .data-band .item + .item{border-left:0;padding-left:0;border-top:1px solid rgba(255,255,255,.16);padding-top:16px;}
  .data-band .num{font-size:28px;}
  .figure{margin:26px 0;}
  .faq summary{font-size:15.5px;}
}

/* roulang page: category2 */
:root{
  --c-ink:#16211F;
  --c-ink-2:#4E5F5B;
  --c-ink-3:#7C8A86;
  --c-line:#E3DFD6;
  --c-bg:#F7F5F0;
  --c-surface:#FFFFFF;
  --c-brand:#22635F;
  --c-brand-d:#17433F;
  --c-brand-l:#EAF1EF;
  --c-accent:#D97A34;
  --c-accent-d:#C46A28;
  --c-accent-l:#FBEEE2;
  --c-ok:#2E7D5B;
  --c-warn:#C0503A;
  --c-focus:rgba(34,99,95,.28);

  --r-card:14px;
  --r-media:18px;
  --r-btn:10px;
  --r-pill:999px;

  --sh-1:0 1px 2px rgba(22,33,31,.04);
  --sh-2:0 12px 32px rgba(22,33,31,.10);

  --sp-block:96px;
  --sp-block-md:72px;
  --sp-block-sm:58px;

  --font-sans:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --font-num:Inter,system-ui,"Segoe UI",Roboto,"PingFang SC",sans-serif;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-ink);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.85;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--c-brand);text-decoration:none}
a:hover{color:var(--c-brand-d)}
button{font:inherit}
h1,h2,h3,h4,p,ul,ol,figure,address{margin:0}
ul,ol{padding:0;list-style:none}
[hidden]{display:none !important}
:focus-visible{outline:2px solid var(--c-brand);outline-offset:2px;box-shadow:0 0 0 4px var(--c-focus);border-radius:6px}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

/* ============ 导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:70;
  background:var(--c-surface);
  border-bottom:1px solid var(--c-line);
  transition:box-shadow .24s ease;
}
.site-header.scrolled{box-shadow:0 2px 8px rgba(22,33,31,.08)}
.nav-inner{
  display:flex;
  align-items:center;
  gap:24px;
  min-height:72px;
  padding-top:12px;
  padding-bottom:12px;
}
.brand{display:flex;flex-direction:column;gap:2px;flex:0 0 auto;color:var(--c-ink)}
.brand-main{font-size:19px;font-weight:700;letter-spacing:.02em;line-height:1.2}
.brand-sub{font-size:12px;color:var(--c-ink-3);letter-spacing:.08em;line-height:1.2}
.brand:hover .brand-main{color:var(--c-brand)}

.nav-search{
  position:relative;
  display:flex;
  align-items:center;
  flex:1 1 auto;
  max-width:400px;
  min-width:200px;
  background:var(--c-bg);
  border:1px solid var(--c-line);
  border-radius:10px;
  padding:0 12px;
  transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.nav-search svg{flex:0 0 auto;color:var(--c-ink-3)}
.nav-search input{
  flex:1 1 auto;
  height:44px;
  border:0;
  background:transparent;
  font-size:15px;
  color:var(--c-ink);
  padding:0 8px;
  outline:none;
  min-width:0;
}
.nav-search input::placeholder{color:var(--c-ink-3)}
.nav-search:focus-within{
  background:var(--c-surface);
  border-color:var(--c-brand);
  box-shadow:0 0 0 4px var(--c-focus);
}
.nav-kbd{
  flex:0 0 auto;
  font-family:var(--font-num);
  font-size:11px;
  color:var(--c-ink-3);
  border:1px solid var(--c-line);
  border-radius:6px;
  padding:2px 6px;
  background:var(--c-surface);
}

.nav-links{display:flex;align-items:center;gap:22px;margin-left:auto}
.nav-links a{
  position:relative;
  font-size:15px;
  color:var(--c-ink-2);
  padding:6px 2px;
  white-space:nowrap;
  transition:color .2s ease;
}
.nav-links a::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:0;
  height:2px;
  background:var(--c-brand);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .24s ease;
}
.nav-links a:hover{color:var(--c-brand)}
.nav-links a:hover::after{transform:scaleX(1)}
.nav-links a.active{color:var(--c-brand);font-weight:600}
.nav-links a.active::after{transform:scaleX(1)}

.nav-toggle{
  display:none;
  align-items:center;
  justify-content:center;
  width:44px;height:44px;
  margin-left:auto;
  border:1px solid var(--c-line);
  border-radius:10px;
  background:var(--c-surface);
  color:var(--c-ink);
  cursor:pointer;
  transition:background .2s ease,color .2s ease;
}
.nav-toggle:hover{background:var(--c-brand-l);color:var(--c-brand)}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:44px;
  padding:0 22px;
  border-radius:var(--r-btn);
  font-size:15px;
  font-weight:600;
  border:1px solid transparent;
  cursor:pointer;
  transition:background .2s ease,color .2s ease,border-color .2s ease,transform .16s ease,box-shadow .2s ease;
}
.btn-primary{background:var(--c-accent);color:#fff;box-shadow:var(--sh-1)}
.btn-primary:hover{background:var(--c-accent-d);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-primary:active{transform:translateY(0);box-shadow:var(--sh-1)}
.btn-outline{background:transparent;border-color:var(--c-brand);color:var(--c-brand)}
.btn-outline:hover{background:var(--c-brand-l);color:var(--c-brand-d)}
.btn-light{background:transparent;border-color:rgba(255,255,255,.66);color:#fff}
.btn-light:hover{background:rgba(255,255,255,.14);color:#fff;border-color:#fff}
.btn:disabled{opacity:.55;cursor:not-allowed;transform:none;box-shadow:none}

/* ============ Hero ============ */
.hero{
  position:relative;
  color:#fff;
  background-image:linear-gradient(180deg,rgba(23,67,63,.88) 0%,rgba(23,67,63,.74) 100%),url('/assets/images/backpic/back-2.webp');
  background-size:cover;
  background-position:center;
  padding:52px 0 66px;
}
.breadcrumb{margin-bottom:22px}
.breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:13px;color:rgba(255,255,255,.72)}
.breadcrumb li+li::before{content:"/";margin-right:10px;color:rgba(255,255,255,.45)}
.breadcrumb a{color:rgba(255,255,255,.86)}
.breadcrumb a:hover{color:#fff;text-decoration:underline}
.breadcrumb [aria-current]{color:#fff}
.hero-tag{
  display:inline-block;
  font-size:13px;
  letter-spacing:.14em;
  color:#fff;
  border:1px solid rgba(255,255,255,.5);
  border-radius:var(--r-pill);
  padding:4px 14px;
  margin-bottom:20px;
}
.hero h1{
  font-size:clamp(30px,4.4vw,46px);
  line-height:1.28;
  font-weight:700;
  max-width:820px;
  letter-spacing:.01em;
}
.hero-lead{
  margin-top:20px;
  max-width:680px;
  font-size:17px;
  line-height:1.85;
  color:rgba(255,255,255,.86);
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}

/* ============ 关键信息条 ============ */
.info-bar{background:var(--c-surface);border-bottom:1px solid var(--c-line)}
.info-grid{display:grid;grid-template-columns:repeat(4,1fr)}
.info-item{padding:20px 22px;border-left:1px solid var(--c-line)}
.info-item:first-child{border-left:0;padding-left:0}
.info-k{font-size:12px;letter-spacing:.1em;color:var(--c-ink-3);margin-bottom:6px}
.info-v{font-size:15px;font-weight:600;color:var(--c-ink);font-variant-numeric:tabular-nums}

/* ============ 板块与栅格 ============ */
.section{padding:var(--sp-block) 0}
.section-tight{padding-top:56px}
.two-col{display:grid;grid-template-columns:4fr 8fr;gap:52px;align-items:start}

/* 左侧索引 */
.side-index{
  position:sticky;
  top:96px;
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  padding:22px;
  box-shadow:var(--sh-1);
}
.si-title{
  font-size:13px;
  letter-spacing:.12em;
  color:var(--c-ink-3);
  padding-bottom:14px;
  border-bottom:1px solid var(--c-line);
}
.si-list{margin-top:8px}
.si-list li+li{border-top:1px solid var(--c-line)}
.si-list a{
  display:flex;
  align-items:baseline;
  gap:12px;
  padding:14px 4px;
  font-size:15px;
  color:var(--c-ink-2);
  transition:color .2s ease,padding-left .2s ease;
}
.si-list a:hover{color:var(--c-brand);padding-left:8px}
.si-num{
  font-family:var(--font-num);
  font-variant-numeric:tabular-nums;
  font-size:12px;
  color:var(--c-accent);
  letter-spacing:.06em;
}
.si-note{
  margin-top:18px;
  padding-top:16px;
  border-top:1px solid var(--c-line);
  font-size:13px;
  line-height:1.7;
  color:var(--c-ink-3);
}

/* 右侧内容块 */
.content-col{display:flex;flex-direction:column;gap:58px}
.block h2{
  position:relative;
  font-size:clamp(24px,3vw,32px);
  line-height:1.34;
  font-weight:700;
  padding-left:18px;
  margin-bottom:18px;
}
.block h2::before{
  content:"";
  position:absolute;
  left:0;top:.22em;
  width:4px;height:1.05em;
  border-radius:2px;
  background:var(--c-accent);
}
.block h3{font-size:20px;line-height:1.45;font-weight:600;margin-bottom:8px}
.block p{color:var(--c-ink-2);margin-bottom:16px}
.block p:last-child{margin-bottom:0}
.block .lead-strong{color:var(--c-ink);font-size:17px}

/* 卡片 / 面板 */
.panel{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  padding:24px;
  box-shadow:var(--sh-1);
  transition:box-shadow .24s ease,transform .24s ease;
}
.panel:hover{box-shadow:var(--sh-2)}

/* 表格 */
.table-wrap{overflow-x:auto;border:1px solid var(--c-line);border-radius:var(--r-card);background:var(--c-surface)}
.spec-table{width:100%;min-width:620px;border-collapse:collapse;font-size:15px}
.spec-table th{
  text-align:left;
  font-size:13px;
  font-weight:600;
  letter-spacing:.06em;
  color:var(--c-ink-2);
  background:var(--c-brand-l);
  padding:14px 18px;
  border-bottom:1px solid var(--c-line);
  white-space:nowrap;
}
.spec-table td{
  padding:16px 18px;
  border-bottom:1px solid var(--c-line);
  color:var(--c-ink-2);
  vertical-align:top;
  line-height:1.7;
}
.spec-table tr:last-child td{border-bottom:0}
.spec-table td:first-child{color:var(--c-ink);font-weight:600}
.num-cell{font-family:var(--font-num);font-variant-numeric:tabular-nums}

/* 标记 */
.mark{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600}
.mark-yes{color:var(--c-ok)}
.mark-no{color:var(--c-warn)}
.tag{
  display:inline-block;
  font-size:12px;
  line-height:1.6;
  padding:2px 10px;
  border-radius:var(--r-pill);
  border:1px solid var(--c-line);
  color:var(--c-ink-2);
  background:var(--c-surface);
}
.tag-accent{border-color:rgba(217,122,52,.45);color:var(--c-accent-d);background:var(--c-accent-l)}
.tag-warn{border-color:rgba(192,80,58,.42);color:var(--c-warn);background:#FCF1EE}

/* 步骤 */
.steps{margin-top:8px}
.steps li{
  position:relative;
  display:grid;
  grid-template-columns:60px 1fr;
  gap:18px;
  padding-bottom:30px;
}
.steps li::before{
  content:"";
  position:absolute;
  left:21px;
  top:36px;
  bottom:2px;
  width:1px;
  background:var(--c-line);
}
.steps li:last-child{padding-bottom:0}
.steps li:last-child::before{display:none}
.step-num{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:44px;
  height:34px;
  border-radius:var(--r-pill);
  border:1px solid var(--c-line);
  background:var(--c-surface);
  font-family:var(--font-num);
  font-variant-numeric:tabular-nums;
  font-size:14px;
  font-weight:600;
  color:var(--c-accent);
}
.steps h3{margin-bottom:6px}
.steps p{font-size:15px;color:var(--c-ink-2);margin:0}

/* 指标卡 */
.metric-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:22px}
.metric{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  padding:20px;
  box-shadow:var(--sh-1);
}
.m-value{
  font-family:var(--font-num);
  font-variant-numeric:tabular-nums;
  font-size:30px;
  font-weight:700;
  line-height:1.2;
  color:var(--c-brand);
}
.m-value small{font-size:15px;font-weight:600;margin-left:2px}
.m-label{font-size:13px;color:var(--c-ink-2);margin-top:8px;line-height:1.6}

/* 异常信号 */
.signal-list{margin-top:8px}
.signal-item{
  display:grid;
  grid-template-columns:1fr;
  gap:8px;
  padding:20px 0;
  border-bottom:1px solid var(--c-line);
}
.signal-item:last-child{border-bottom:0}
.signal-head{display:flex;flex-wrap:wrap;align-items:center;gap:12px}
.signal-head h3{font-size:17px;margin:0}
.signal-item p{margin:0;font-size:15px;color:var(--c-ink-2)}

/* 图文 */
.fig{margin-top:22px}
.fig img{
  width:100%;
  aspect-ratio:16/9;
  object-fit:cover;
  border-radius:var(--r-media);
  background:var(--c-brand-l);
  border:1px solid var(--c-line);
}
.fig figcaption{font-size:13px;color:var(--c-ink-3);margin-top:10px;line-height:1.7}

/* 要点清单 */
.check-list{margin-top:14px}
.check-list li{
  display:grid;
  grid-template-columns:22px 1fr;
  gap:12px;
  padding:12px 0;
  border-bottom:1px solid var(--c-line);
  font-size:15px;
  color:var(--c-ink-2);
}
.check-list li:last-child{border-bottom:0}
.check-list svg{color:var(--c-brand);margin-top:5px}
.check-list b{color:var(--c-ink);font-weight:600}

/* 深色对比区 */
.dark-block{
  background:var(--c-brand-d);
  color:#fff;
  border-radius:var(--r-media);
  padding:38px 34px;
}
.dark-block h2{color:#fff;padding-left:18px}
.dark-block h2::before{background:var(--c-accent)}
.dark-block .block-sub{color:rgba(255,255,255,.76);font-size:15px;margin-bottom:22px}
.dark-table-wrap{
  overflow-x:auto;
  border:1px solid rgba(255,255,255,.16);
  border-radius:var(--r-card);
  background:rgba(255,255,255,.04);
}
.dark-table{width:100%;min-width:600px;border-collapse:collapse;font-size:15px}
.dark-table th{
  text-align:left;
  font-size:13px;
  letter-spacing:.06em;
  font-weight:600;
  color:rgba(255,255,255,.72);
  padding:14px 18px;
  background:rgba(255,255,255,.06);
  border-bottom:1px solid rgba(255,255,255,.16);
  white-space:nowrap;
}
.dark-table td{
  padding:16px 18px;
  color:rgba(255,255,255,.82);
  border-bottom:1px solid rgba(255,255,255,.12);
  vertical-align:top;
}
.dark-table tr:last-child td{border-bottom:0}
.dark-table td:first-child{color:#fff;font-weight:600}
.dark-block .mark-yes{color:#8FD3B0}
.dark-block .mark-no{color:#F0A98E}

/* FAQ */
.faq-list{margin-top:26px;border-top:1px solid var(--c-line)}
.faq-item{border-bottom:1px solid var(--c-line)}
.faq-item summary{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  min-height:58px;
  padding:16px 4px;
  font-size:17px;
  font-weight:600;
  color:var(--c-ink);
  cursor:pointer;
  list-style:none;
  transition:color .2s ease;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--c-brand)}
.faq-icon{
  flex:0 0 auto;
  color:var(--c-brand);
  transition:transform .26s ease;
}
.faq-item[open] summary{color:var(--c-brand)}
.faq-item[open] .faq-icon{transform:rotate(45deg)}
.faq-body{
  background:rgba(234,241,239,.62);
  border-radius:var(--r-card);
  padding:4px 20px 20px;
  font-size:15px;
  color:var(--c-ink-2);
  line-height:1.85;
}

/* CTA 面板 */
.cta-panel{
  background:var(--c-brand-l);
  border:1px solid var(--c-line);
  border-radius:var(--r-media);
  padding:42px 38px;
  display:grid;
  grid-template-columns:1.5fr 1fr;
  gap:34px;
  align-items:center;
}
.cta-panel h2{font-size:clamp(22px,2.6vw,30px);line-height:1.36;font-weight:700;margin-bottom:12px}
.cta-panel p{color:var(--c-ink-2);font-size:15px}
.cta-actions{display:flex;flex-direction:column;gap:12px}
.cta-actions .btn{width:100%}

/* 页脚 */
.site-footer{background:var(--c-brand-d);color:rgba(255,255,255,.82);margin-top:8px}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.2fr;
  gap:40px;
  padding:64px 0 44px;
}
.fb-name{font-size:19px;font-weight:700;color:#fff;margin-bottom:14px}
.footer-brand p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.7);max-width:320px}
.footer-col h4{font-size:14px;letter-spacing:.08em;color:#fff;margin-bottom:16px;font-weight:600}
.footer-col ul li+li{margin-top:10px}
.footer-col a{font-size:14px;color:rgba(255,255,255,.76)}
.footer-col a:hover{color:#fff;text-decoration:underline}
.footer-col address{font-style:normal;font-size:14px;line-height:1.9;color:rgba(255,255,255,.7)}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  justify-content:space-between;
  padding:20px 0 26px;
  border-top:1px solid rgba(255,255,255,.16);
  font-size:13px;
  color:rgba(255,255,255,.6);
}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .two-col{gap:40px;grid-template-columns:4fr 8fr}
  .footer-grid{gap:32px}
}

@media (max-width:1023px){
  :root{--sp-block:var(--sp-block-md)}
  .nav-inner{flex-wrap:wrap;gap:14px}
  .brand{margin-right:auto}
  .nav-toggle{display:inline-flex;margin-left:0}
  .nav-search{order:3;flex:1 0 100%;max-width:none;margin-top:4px}
  .nav-links{
    position:fixed;
    top:0;right:0;
    height:100vh;
    width:min(78vw,320px);
    background:var(--c-surface);
    border-left:1px solid var(--c-line);
    box-shadow:var(--sh-2);
    flex-direction:column;
    align-items:flex-start;
    gap:4px;
    padding:92px 26px 26px;
    margin:0;
    transform:translateX(102%);
    transition:transform .28s ease;
    z-index:80;
    overflow-y:auto;
  }
  .nav-links.open{transform:translateX(0)}
  .nav-links a{width:100%;min-height:44px;display:flex;align-items:center;font-size:16px;border-bottom:1px solid var(--c-line)}
  .nav-links a::after{display:none}
  .nav-links a.active{background:var(--c-brand-l);border-radius:8px;padding-left:12px}
  .nav-scrim{position:fixed;inset:0;background:rgba(22,33,31,.34);z-index:75}
  .info-grid{grid-template-columns:repeat(2,1fr)}
  .info-item{border-left:0;padding:18px 0}
  .info-item:nth-child(odd){border-right:1px solid var(--c-line);padding-right:16px}
  .info-item:nth-child(even){padding-left:16px}
  .two-col{grid-template-columns:1fr;gap:32px}
  .side-index{position:static;top:auto}
  .si-list{display:grid;grid-template-columns:repeat(2,1fr);gap:0 18px}
  .si-list li+li{border-top:0}
  .si-list li{border-bottom:1px solid var(--c-line)}
  .metric-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;padding:52px 0 36px}
  .cta-panel{grid-template-columns:1fr;padding:34px 28px}
}

@media (max-width:767px){
  :root{--sp-block:var(--sp-block-sm)}
  .container{padding:0 20px}
  .hero{padding:36px 0 52px}
  .hero-lead{font-size:16px}
  .hero-actions{gap:10px}
  .hero-actions .btn{flex:1 1 100%}
  .content-col{gap:46px}
  .dark-block{padding:28px 22px}
  .steps li{grid-template-columns:52px 1fr;gap:14px}
  .signal-item{padding:18px 0}
  .faq-item summary{font-size:16px}
  .cta-actions .btn{flex:1 1 auto}
}

@media (max-width:520px){
  .brand-main{font-size:17px}
  .brand-sub{font-size:11px}
  .nav-kbd{display:none}
  .info-grid{grid-template-columns:1fr}
  .info-item:nth-child(odd){border-right:0;padding-right:0}
  .info-item:nth-child(even){padding-left:0}
  .metric-grid{grid-template-columns:1fr}
  .si-list{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;gap:8px}
  .panel{padding:20px}
  .cta-panel{padding:28px 20px}
  .block h2{font-size:24px}
}

/* roulang page: category3 */
:root{
  --c-ink:#16211F;
  --c-ink-2:#4E5F5B;
  --c-ink-3:#7C8A86;
  --c-line:#E3DFD6;
  --c-bg:#F7F5F0;
  --c-surface:#FFFFFF;
  --c-brand:#22635F;
  --c-brand-d:#17433F;
  --c-brand-l:#EAF1EF;
  --c-accent:#D97A34;
  --c-accent-l:#FBEEE2;
  --c-ok:#2E7D5B;
  --c-warn:#C0503A;
  --c-focus:rgba(34,99,95,.28);
  --r-card:14px;
  --r-kv:18px;
  --r-btn:10px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(22,33,31,.04);
  --sh-2:0 12px 32px rgba(22,33,31,.10);
  --sp-section:96px;
  --font-cn:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-mono:ui-monospace,SFMono-Regular,"SF Mono",Menlo,Consolas,monospace;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16.5px;
  line-height:1.85;
  letter-spacing:.01em;
  color:var(--c-ink);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
p{margin:0 0 1.2em}
p:last-child{margin-bottom:0}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.32}
ul,ol{margin:0;padding:0;list-style:none}
address{font-style:normal}
:focus-visible{outline:2px solid var(--c-brand);outline-offset:2px;box-shadow:0 0 0 4px var(--c-focus);border-radius:4px}
.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}

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

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:#fff;border-bottom:1px solid var(--c-line);
  transition:box-shadow .22s ease;
}
.site-header.is-scrolled{box-shadow:0 2px 8px rgba(22,33,31,.08)}
.nav-inner{display:flex;align-items:center;gap:20px;min-height:74px}
.brand{display:flex;flex-direction:column;line-height:1.25;flex:0 0 auto;padding:6px 0}
.brand-main{font-size:17px;font-weight:700;letter-spacing:.02em;color:var(--c-ink)}
.brand-sub{font-size:11.5px;letter-spacing:.16em;color:var(--c-ink-3);margin-top:2px}
.brand:hover .brand-main{color:var(--c-brand)}

.nav-search{
  position:relative;display:flex;align-items:center;gap:10px;
  flex:1 1 auto;max-width:400px;height:44px;margin:0 auto;
  padding:0 14px;background:var(--c-bg);
  border:1px solid var(--c-line);border-radius:var(--r-pill);
  color:var(--c-ink-3);transition:border-color .2s,box-shadow .2s,background .2s,color .2s;
}
.nav-search:focus-within{border-color:var(--c-brand);background:#fff;color:var(--c-brand);box-shadow:0 0 0 4px var(--c-focus)}
.nav-search input{flex:1 1 auto;min-width:0;height:100%;border:0;background:transparent;outline:none;font-size:14.5px;color:var(--c-ink)}
.nav-search input::placeholder{color:var(--c-ink-3)}
.nav-kbd{
  flex:0 0 auto;font-size:11px;padding:2px 8px;border:1px solid var(--c-line);
  border-radius:6px;background:#fff;color:var(--c-ink-3);white-space:nowrap;
}
.nav-links{display:flex;align-items:center;gap:22px;margin-left:auto}
.nav-links a{
  position:relative;font-size:15px;color:var(--c-ink-2);
  padding:6px 0;transition:color .2s ease;white-space:nowrap;
}
.nav-links a:hover{color:var(--c-brand)}
.nav-links a.active{color:var(--c-brand);font-weight:600}
.nav-links a.active::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
  background:var(--c-accent);border-radius:2px;
}
.nav-toggle{
  display:none;align-items:center;justify-content:center;
  width:44px;height:44px;border:1px solid var(--c-line);
  border-radius:var(--r-btn);background:#fff;color:var(--c-brand);
  cursor:pointer;transition:background .2s,border-color .2s;
}
.nav-toggle:hover{background:var(--c-brand-l);border-color:var(--c-brand)}
.nav-scrim{position:fixed;inset:0;background:rgba(22,33,31,.3);z-index:70}

/* ---------- 面包屑 ---------- */
.crumb-bar{background:var(--c-bg);border-bottom:1px solid var(--c-line)}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;padding:14px 0;font-size:13px;color:var(--c-ink-3)}
.breadcrumb a{color:var(--c-ink-2)}
.breadcrumb a:hover{color:var(--c-brand);text-decoration:underline;text-underline-offset:3px}
.breadcrumb .sep{color:var(--c-ink-3)}
.breadcrumb .current{color:var(--c-brand);font-weight:600}

/* ---------- Hero ---------- */
.page-hero{position:relative;overflow:hidden;background:var(--c-brand-d);color:#fff}
.hero-media{position:absolute;inset:0;background-image:url(/assets/images/backpic/back-1.webp);background-size:cover;background-position:center;opacity:.6}
.page-hero::before{
  content:"";position:absolute;inset:0;z-index:1;
  background:linear-gradient(100deg,rgba(23,67,63,.95) 0%,rgba(23,67,63,.8) 52%,rgba(23,67,63,.55) 100%);
}
.hero-inner{
  position:relative;z-index:2;
  display:flex;flex-direction:column;justify-content:center;
  min-height:460px;padding-top:72px;padding-bottom:72px;max-width:860px;
}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:8px;align-self:flex-start;
  font-size:12.5px;letter-spacing:.14em;color:#fff;
  background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.28);
  padding:6px 14px;border-radius:var(--r-pill);margin-bottom:22px;
}
.page-hero h1{
  font-size:clamp(30px,4.4vw,46px);line-height:1.28;font-weight:700;
  color:#fff;margin-bottom:18px;letter-spacing:.01em;
}
.hero-lead{
  font-size:17px;line-height:1.85;color:rgba(255,255,255,.86);
  max-width:660px;margin-bottom:30px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px}
.hero-meta{
  display:flex;flex-wrap:wrap;gap:10px 22px;margin-top:32px;
  font-size:13.5px;color:rgba(255,255,255,.78);
}
.hero-meta span{display:inline-flex;align-items:center;gap:8px}
.hero-meta span::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--c-accent)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  min-height:44px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;letter-spacing:.01em;
  border:1px solid transparent;cursor:pointer;
  transition:background .2s ease,color .2s ease,border-color .2s ease,transform .16s ease,box-shadow .2s ease,opacity .2s ease;
}
.btn-primary{background:var(--c-accent);color:#fff;box-shadow:0 1px 2px rgba(22,33,31,.08)}
.btn-primary:hover{background:#c96c29;transform:translateY(-1px);box-shadow:0 10px 22px rgba(217,122,52,.26)}
.btn-primary:active{transform:translateY(0);background:#bd6224;box-shadow:none}
.btn-ghost{background:transparent;border-color:var(--c-brand);color:var(--c-brand)}
.btn-ghost:hover{background:var(--c-brand-l)}
.btn-ghost:active{background:#dde9e6}
.btn-on-dark{background:transparent;border-color:rgba(255,255,255,.5);color:#fff}
.btn-on-dark:hover{background:rgba(255,255,255,.14);border-color:#fff}
.btn-text{padding:0;min-height:auto;color:var(--c-brand);font-weight:600;border:0;background:none}
.btn-text:hover{text-decoration:underline;text-underline-offset:4px;color:var(--c-brand-d)}
.btn:disabled,.btn.is-disabled{opacity:.55;cursor:not-allowed;transform:none;box-shadow:none}
.btn.is-loading{pointer-events:none;opacity:.9}
.btn.is-loading::before{
  content:"";width:14px;height:14px;border-radius:50%;
  border:2px solid rgba(255,255,255,.45);border-top-color:#fff;
  animation:spin .7s linear infinite;
}
@keyframes spin{to{transform:rotate(360deg)}}

/* ---------- 板块通用 ---------- */
.section{padding:var(--sp-section) 0}
.section-alt{background:var(--c-surface);border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line)}
.section-head{max-width:720px;margin-bottom:44px}
.section-eyebrow{
  display:block;font-size:12.5px;letter-spacing:.16em;color:var(--c-accent);
  font-weight:600;margin-bottom:12px;
}
.section-head h2{font-size:clamp(24px,3vw,34px);line-height:1.32;margin-bottom:14px}
.section-head p{color:var(--c-ink-2);font-size:16px;margin:0}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}

/* ---------- 关键信息条 ---------- */
.fact-bar{border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line);background:var(--c-surface)}
.fact-list{display:flex;flex-wrap:wrap;align-items:stretch}
.fact-item{
  flex:1 1 200px;padding:22px 24px;border-left:1px solid var(--c-line);
  display:flex;flex-direction:column;gap:6px;
}
.fact-item:first-child{border-left:0;padding-left:0}
.fact-key{font-size:12.5px;letter-spacing:.1em;color:var(--c-ink-3)}
.fact-val{font-size:16px;font-weight:600;color:var(--c-ink);font-family:var(--font-mono);font-variant-numeric:tabular-nums}

/* ---------- 排查顺序（序号列） ---------- */
.order-list{border-top:1px solid var(--c-line)}
.order-row{
  display:grid;grid-template-columns:110px 1fr;gap:28px;
  padding:28px 0;border-bottom:1px solid var(--c-line);
}
.order-index{position:relative;padding-left:24px}
.order-num{
  display:block;font-family:var(--font-mono);font-size:19px;font-weight:600;
  color:var(--c-brand);font-variant-numeric:tabular-nums;letter-spacing:.02em;
}
.order-dot{
  position:absolute;left:0;top:9px;width:10px;height:10px;border-radius:50%;
  background:var(--c-accent);box-shadow:0 0 0 4px var(--c-accent-l);
}
.order-line{position:absolute;left:4.5px;top:26px;bottom:-8px;width:1px;background:var(--c-line)}
.order-row:last-child .order-line{display:none}
.order-body h3{font-size:18px;font-weight:600;margin-bottom:8px}
.order-body p{color:var(--c-ink-2);font-size:15.5px;margin:0}

/* ---------- 现象对照 ---------- */
.case-table{border-top:1px solid var(--c-line)}
.case-head,.case-row{display:grid;grid-template-columns:1.05fr 1fr 1.25fr;gap:22px;padding:18px 0}
.case-head{
  font-size:12.5px;letter-spacing:.1em;color:var(--c-ink-3);
  border-bottom:1px solid var(--c-line);
}
.case-row{border-bottom:1px solid var(--c-line);align-items:start}
.case-sym{font-weight:600;color:var(--c-ink);font-size:16px}
.case-cause{color:var(--c-ink-2);font-size:15.5px}
.case-fix{color:var(--c-ink-2);font-size:15.5px}
.case-fix strong{color:var(--c-brand);font-weight:600}

/* ---------- 图文区 ---------- */
.media-block{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.media-figure{margin:0}
.media-figure img{
  width:100%;aspect-ratio:4/3;object-fit:cover;
  border-radius:var(--r-kv);border:1px solid var(--c-line);background:var(--c-brand-l);
}
.media-figure figcaption{margin-top:12px;font-size:13px;color:var(--c-ink-3)}
.media-text h2{font-size:clamp(24px,3vw,32px);margin-bottom:16px}
.media-text p{color:var(--c-ink-2)}
.media-points{margin-top:20px;display:flex;flex-direction:column;gap:12px}
.media-points li{display:flex;gap:12px;align-items:flex-start;font-size:15.5px;color:var(--c-ink-2)}
.media-points li::before{
  content:"";flex:0 0 auto;width:9px;height:9px;margin-top:9px;
  border-radius:50%;background:var(--c-accent);
}

/* ---------- 环境对照（行式） ---------- */
.env-table{border-top:1px solid var(--c-line)}
.env-row{
  display:grid;grid-template-columns:170px 1fr 1fr;gap:22px;
  align-items:start;padding:22px 0;border-bottom:1px solid var(--c-line);
}
.env-name{font-weight:600;font-size:16px;color:var(--c-ink)}
.env-env{color:var(--c-ink-2);font-size:15.5px}
.env-advice{color:var(--c-ink-2);font-size:15.5px}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border:1px solid var(--c-line);border-radius:var(--r-pill);
  font-size:12.5px;color:var(--c-ink-2);background:#fff;
}
.tag-ok{border-color:rgba(46,125,91,.35);color:var(--c-ok);background:rgba(46,125,91,.08)}
.tag-warn{border-color:rgba(192,80,58,.35);color:var(--c-warn);background:rgba(192,80,58,.08)}
.tag-accent{border-color:rgba(217,122,52,.35);color:#b9642a;background:var(--c-accent-l)}

/* ---------- 表单 ---------- */
.form-panel{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:32px;box-shadow:var(--sh-1);
}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.field{display:flex;flex-direction:column;gap:8px}
.field-full{grid-column:1 / -1}
.field label{font-size:14px;font-weight:600;color:var(--c-ink)}
.field .hint{font-size:12.5px;color:var(--c-ink-3);font-weight:400}
.field input,.field select,.field textarea{
  width:100%;min-height:46px;padding:11px 14px;
  border:1px solid var(--c-line);border-radius:var(--r-btn);
  background:#fff;color:var(--c-ink);font-size:15px;line-height:1.6;
  transition:border-color .2s,box-shadow .2s,background .2s;
}
.field textarea{min-height:120px;resize:vertical;}
.field input::placeholder,.field textarea::placeholder{color:var(--c-ink-3)}
.field input:hover,.field select:hover,.field textarea:hover{border-color:#cfc9bd}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--c-brand);box-shadow:0 0 0 4px var(--c-focus);
}
.field.has-error input,.field.has-error select,.field.has-error textarea{border-color:var(--c-warn);box-shadow:0 0 0 4px rgba(192,80,58,.14)}
.form-actions{grid-column:1 / -1;display:flex;flex-wrap:wrap;align-items:center;gap:16px;margin-top:6px}
.form-tip{font-size:13.5px;color:var(--c-ink-3)}
.form-tip.is-ok{color:var(--c-ok)}
.form-note{font-size:12.5px;color:var(--c-ink-3);margin-top:14px}

/* ---------- FAQ ---------- */
.faq-list{border-top:1px solid var(--c-line);max-width:900px}
.faq-item{border-bottom:1px solid var(--c-line)}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  min-height:58px;padding:16px 0;font-size:17px;font-weight:600;
  cursor:pointer;list-style:none;transition:color .2s;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--c-brand)}
.faq-item summary::after{
  content:"";flex:0 0 auto;width:14px;height:14px;
  background-image:linear-gradient(var(--c-brand),var(--c-brand)),linear-gradient(var(--c-brand),var(--c-brand));
  background-size:14px 1.6px,1.6px 14px;
  background-position:center,center;background-repeat:no-repeat;
  transition:transform .22s ease;
}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-body{
  margin:0 0 18px;padding:16px 18px;border-radius:10px;
  background:rgba(234,241,239,.55);color:var(--c-ink-2);font-size:15.5px;
}

/* ---------- CTA ---------- */
.cta-panel{
  display:grid;grid-template-columns:1.3fr .9fr;gap:40px;align-items:center;
  background:var(--c-brand-l);border:1px solid #d5e3e0;border-radius:var(--r-kv);
  padding:44px;
}
.cta-panel h2{font-size:clamp(22px,2.6vw,30px);margin-bottom:14px}
.cta-panel p{color:var(--c-ink-2);margin-bottom:0}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:flex-end}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-brand-d);color:#fff;margin-top:0;padding:64px 0 28px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand .fb-name{font-size:18px;font-weight:700;letter-spacing:.02em;margin-bottom:14px}
.footer-brand p{color:rgba(255,255,255,.72);font-size:14.5px;line-height:1.8;margin:0;max-width:340px}
.footer-col h4{font-size:14px;letter-spacing:.08em;color:#fff;margin-bottom:16px;font-weight:600}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a,.footer-col address{color:rgba(255,255,255,.72);font-size:14.5px;line-height:1.8;transition:color .2s}
.footer-col a:hover{color:#fff;text-decoration:underline;text-underline-offset:4px}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;
  margin-top:48px;padding-top:22px;border-top:1px solid rgba(255,255,255,.16);
  font-size:13px;color:rgba(255,255,255,.62);
}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  :root{--sp-section:84px}
  .nav-links{gap:16px}
  .nav-links a{font-size:14.5px}
}
@media (max-width:1023px){
  :root{--sp-section:72px}
  .container{padding:0 20px}
  .nav-inner{flex-wrap:wrap;gap:12px;padding:10px 0 14px;min-height:auto}
  .brand{order:1}
  .nav-toggle{display:inline-flex;order:2;margin-left:auto}
  .nav-search{order:3;flex:1 1 100%;max-width:none;margin:0}
  .nav-kbd{display:none}
  .nav-links{
    position:fixed;top:0;left:0;bottom:0;width:min(80vw,300px);
    background:#fff;border-right:1px solid var(--c-line);
    display:flex;flex-direction:column;align-items:stretch;gap:0;
    padding:88px 22px 24px;margin:0;z-index:80;
    transform:translateX(-102%);transition:transform .26s ease;overflow-y:auto;
  }
  .nav-links.is-open{transform:none;box-shadow:var(--sh-2)}
  .nav-links a{width:100%;padding:14px 2px;font-size:16px;border-bottom:1px solid var(--c-line)}
  .nav-links a.active::after{display:none}
  .hero-inner{min-height:400px;padding-top:56px;padding-bottom:56px}
  .media-block{grid-template-columns:1fr;gap:32px}
  .cta-panel{grid-template-columns:1fr;gap:28px;padding:34px}
  .cta-actions{justify-content:flex-start}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  :root{--sp-section:60px}
  body{font-size:16px}
  .hero-inner{min-height:360px}
  .hero-lead{font-size:16px}
  .hero-actions .btn{width:100%}
  .fact-item{flex:1 1 100%;border-left:0;border-top:1px solid var(--c-line);padding:18px 0}
  .fact-item:first-child{border-top:0}
  .order-row{grid-template-columns:72px 1fr;gap:18px;padding:22px 0}
  .order-index{padding-left:20px}
  .order-num{font-size:17px}
  .case-head{display:none}
  .case-row{grid-template-columns:1fr;gap:10px;padding:20px 0}
  .case-row .case-cause::before,.case-row .case-fix::before{
    content:attr(data-k);display:block;font-size:12px;letter-spacing:.1em;
    color:var(--c-ink-3);margin-bottom:4px;
  }
  .env-row{grid-template-columns:1fr;gap:10px}
  .env-row .env-env::before,.env-row .env-advice::before{
    content:attr(data-k);display:block;font-size:12px;letter-spacing:.1em;
    color:var(--c-ink-3);margin-bottom:4px;
  }
  .form-panel{padding:22px}
  .form-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;gap:8px}
  .section-head{margin-bottom:32px}
}
@media (max-width:480px){
  .container{padding:0 16px}
  .brand-main{font-size:16px}
  .brand-sub{font-size:11px}
  .media-figure img{aspect-ratio:16/10}
  .hero-eyebrow{font-size:11.5px}
}