/* roulang page: index */
:root{
  --c-primary:#0E7C6B;
  --c-primary-600:#12A08A;
  --c-primary-300:#6FD3C0;
  --c-primary-50:#E8F7F3;
  --c-accent:#FF7A45;
  --c-accent-soft:#FFE7DB;
  --c-ink:#10201E;
  --c-ink-2:#4A5C59;
  --c-line:#DCE7E4;
  --c-bg:#F4F8F6;
  --c-surface:#FFFFFF;
  --c-deep:#08211F;
  --grad-brand:linear-gradient(135deg,#0E7C6B 0%,#12A08A 52%,#6FD3C0 100%);
  --grad-cta:linear-gradient(135deg,#FF7A45,#FFA96B);
  --r-card:20px;
  --r-mid:16px;
  --r-btn:12px;
  --elev1:0 1px 2px rgba(16,32,30,.05), 0 8px 24px rgba(16,32,30,.06);
  --elev2:0 12px 32px rgba(14,124,107,.14);
  --ease:cubic-bezier(.2,.7,.3,1);
  --sidebar-w:264px;
}
*,*::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:system-ui,-apple-system,"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Noto Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease)}
button,input,select,textarea{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:6px}
.wrap{max-width:1200px;margin:0 auto;padding:0 40px;width:100%}
section[id]{scroll-margin-top:80px}

/* ---------- 左侧导航 ---------- */
.app-shell{display:flex;min-height:100vh;align-items:stretch}
.sidebar{
  position:fixed;top:0;left:0;bottom:0;width:var(--sidebar-w);
  background:var(--c-surface);border-right:1px solid var(--c-line);z-index:50;
}
.sidebar-inner{display:flex;flex-direction:column;gap:18px;height:100%;overflow-y:auto;padding:24px 18px 22px}
.brand{display:flex;align-items:center;gap:12px;padding:6px;border-radius:var(--r-mid)}
.brand-mark{
  width:42px;height:42px;flex:0 0 auto;border-radius:12px;background:var(--grad-brand);
  display:flex;align-items:center;justify-content:center;color:#fff;box-shadow:0 8px 18px rgba(14,124,107,.22);
}
.brand-mark svg{width:22px;height:22px}
.brand-line1{display:block;font-size:18px;font-weight:800;line-height:1.2;letter-spacing:-.02em}
.brand-line2{display:block;font-size:13px;font-weight:600;color:var(--c-primary);line-height:1.3}
.side-divider{height:1px;background:var(--c-line)}
.side-nav{display:flex;flex-direction:column;gap:6px}
.nav-item{
  position:relative;display:flex;align-items:center;gap:12px;height:44px;padding:0 12px;
  border-radius:var(--r-btn);color:var(--c-ink-2);font-size:15px;
  transition:background .2s var(--ease),color .2s var(--ease);
}
.nav-item svg{width:20px;height:20px;flex:0 0 auto;fill:none;stroke:currentColor;stroke-width:1.75;stroke-linecap:round;stroke-linejoin:round}
.nav-item:hover{background:rgba(232,247,243,.75);color:var(--c-primary)}
.nav-item.active{background:var(--c-primary-50);color:var(--c-primary-600);font-weight:600}
.nav-item.active::before{content:"";position:absolute;left:0;top:9px;bottom:9px;width:3px;border-radius:999px;background:var(--grad-brand)}
.side-cta{
  margin-top:auto;background:var(--c-primary-50);border:1px solid var(--c-line);
  border-radius:var(--r-mid);padding:16px;
}
.side-cta-title{margin:0 0 6px;font-size:14px;font-weight:700;color:var(--c-ink)}
.side-cta-text{margin:0 0 14px;font-size:13px;line-height:1.7;color:var(--c-ink-2)}
.side-foot{margin:12px 0 0;font-size:12px;color:var(--c-ink-2);line-height:1.6;text-align:center}
.btn-block{width:100%}

/* ---------- 主内容 ---------- */
.main-wrap{margin-left:var(--sidebar-w);flex:1;min-width:0;display:flex;flex-direction:column;min-height:100vh}
.page-main{flex:1;padding-bottom:8px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:48px;padding:0 22px;
  border-radius:var(--r-btn);font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease);
  white-space:nowrap;
}
.btn svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.btn-primary{background:var(--grad-cta);color:#fff;box-shadow:0 8px 20px rgba(255,122,69,.28)}
.btn-primary:hover{transform:translateY(-1px);box-shadow:0 12px 26px rgba(255,122,69,.34)}
.btn-primary:active{transform:translateY(0);box-shadow:inset 0 2px 6px rgba(0,0,0,.18)}
.btn-ghost{background:#fff;color:var(--c-ink);border-color:var(--c-line)}
.btn-ghost:hover{background:var(--c-primary-50);border-color:var(--c-primary-300);color:var(--c-primary);transform:translateY(-1px)}
.btn-outline{background:#fff;color:var(--c-ink);border-color:var(--c-line)}
.btn-outline:hover{background:var(--c-primary-50);border-color:var(--c-primary-300);color:var(--c-primary)}
.btn-sm{min-height:44px;padding:0 18px;font-size:14px}
.link-more{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--c-primary)}
.link-more svg{width:16px;height:16px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;transition:transform .2s var(--ease)}
.link-more:hover{color:var(--c-primary-600)}
.link-more:hover svg{transform:translateX(3px)}

/* ---------- Hero ---------- */
.hero{position:relative;border-radius:24px;overflow:hidden;margin-top:24px;min-height:560px;display:flex;align-items:center}
.hero-bg{position:absolute;inset:0;background-image:url('/assets/images/backpic/back-1.webp');background-size:cover;background-position:center}
.hero-overlay{position:absolute;inset:0;background:linear-gradient(135deg,rgba(14,124,107,.88) 0%,rgba(18,160,138,.80) 52%,rgba(111,211,192,.74) 100%)}
.hero-inner{position:relative;z-index:2;width:100%;display:grid;grid-template-columns:1.25fr .85fr;gap:40px;align-items:center;padding:64px 56px}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;font-size:13px;font-weight:600;color:#fff;
  background:rgba(255,255,255,.18);border:1px solid rgba(255,255,255,.36);backdrop-filter:blur(8px);
}
.hero-title{font-size:44px;line-height:1.18;font-weight:800;letter-spacing:-.02em;color:#fff;margin:20px 0 16px;max-width:16em}
.hero-sub{margin:0 0 28px;max-width:34em;font-size:17px;line-height:1.8;color:rgba(255,255,255,.94)}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px}
.hero-badges{display:flex;flex-direction:column;gap:14px}
.badge-card{border-radius:var(--r-mid);padding:16px 18px;backdrop-filter:blur(8px);background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.34);color:#fff}
.badge-card.solid{background:#fff;border-color:#fff;color:var(--c-ink);backdrop-filter:none;box-shadow:0 12px 28px rgba(8,33,31,.16)}
.badge-card.accent{background:var(--c-accent-soft);border-color:rgba(255,122,69,.34);color:#8A3B18;backdrop-filter:none}
.badge-num{display:block;font-size:13px;font-weight:800;letter-spacing:.08em;font-variant-numeric:tabular-nums;opacity:.9}
.badge-title{display:block;font-size:17px;font-weight:700;margin:2px 0 4px}
.badge-text{display:block;font-size:13px;line-height:1.7;opacity:.92}

/* ---------- 通用板块 ---------- */
.section{padding:88px 0}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:40px}
.section-head-text{max-width:760px}
.section-kicker{display:inline-flex;align-items:center;gap:10px;font-size:13px;font-weight:700;letter-spacing:.08em;color:var(--c-primary-600);margin-bottom:14px}
.section-kicker::before{content:"";width:28px;height:4px;border-radius:999px;background:var(--grad-brand)}
.section-title{margin:0 0 12px;font-size:30px;line-height:1.25;font-weight:800;letter-spacing:-.02em}
.section-sub{margin:0;font-size:16px;color:var(--c-ink-2)}

/* ---------- 指标看板 ---------- */
.kpi-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.kpi{
  position:relative;overflow:hidden;background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-card);padding:26px 24px;box-shadow:var(--elev1);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.kpi::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:var(--grad-brand)}
.kpi:hover{transform:translateY(-3px);box-shadow:var(--elev2);border-color:var(--c-primary-300)}
.kpi-num{font-size:34px;font-weight:800;line-height:1.1;color:var(--c-primary);letter-spacing:-.02em;font-variant-numeric:tabular-nums}
.kpi-unit{font-size:14px;font-weight:700;color:var(--c-primary-600);margin-left:5px}
.kpi-label{margin-top:6px;font-size:14px;font-weight:700}
.kpi-desc{margin-top:6px;font-size:13px;line-height:1.7;color:var(--c-ink-2)}

/* ---------- Bento 服务矩阵 ---------- */
.bento{display:grid;grid-template-columns:repeat(12,1fr);gap:24px}
.card{
  position:relative;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  box-shadow:var(--elev1);overflow:hidden;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.card:hover{transform:translateY(-3px);box-shadow:var(--elev2);border-color:var(--c-primary-300)}
.bento-lg{grid-column:span 7;display:flex;flex-direction:column}
.bento-md{grid-column:span 5;display:flex;flex-direction:column}
.bento-sm{grid-column:span 4;display:flex;flex-direction:column}
.card-media{position:relative;margin:14px 14px 0;border-radius:var(--r-mid);overflow:hidden;border:1px solid var(--c-line);background:var(--c-primary-50);aspect-ratio:16/9}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .35s var(--ease)}
.card:hover .card-media img{transform:scale(1.04)}
.media-badge{
  position:absolute;left:12px;bottom:12px;padding:5px 12px;border-radius:999px;font-size:12px;font-weight:700;
  background:rgba(255,255,255,.9);color:var(--c-primary);backdrop-filter:blur(4px);
}
.card-body{padding:22px 24px 24px;display:flex;flex-direction:column;gap:10px;flex:1}
.card-top{display:flex;align-items:center;gap:12px}
.num-badge{
  display:inline-flex;align-items:center;justify-content:center;min-width:36px;height:34px;padding:0 10px;border-radius:999px;
  background:var(--c-accent-soft);color:#B4491C;font-size:13px;font-weight:800;font-variant-numeric:tabular-nums;
  transition:background .2s var(--ease),color .2s var(--ease);
}
.card:hover .num-badge{background:var(--grad-cta);color:#fff}
.card-title{margin:0;font-size:17px;font-weight:700;line-height:1.45}
.card-text{margin:0;font-size:14.5px;line-height:1.8;color:var(--c-ink-2)}
.card-foot{margin-top:auto;padding-top:6px}

/* ---------- 结果对比 ---------- */
.compare{display:grid;grid-template-columns:1fr 1fr;gap:24px;align-items:start}
.compare-col{background:var(--c-bg);border:1px solid var(--c-line);border-radius:var(--r-card);padding:26px}
.compare-col.highlight{background:#fff;border:2px solid var(--c-primary-300);box-shadow:var(--elev2);position:relative;overflow:hidden}
.compare-col.highlight::before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:var(--grad-brand)}
.compare-title{margin:0 0 6px;font-size:18px;font-weight:800}
.compare-note{margin:0 0 18px;font-size:13px;color:var(--c-ink-2)}
.cmp-row{display:flex;align-items:flex-start;justify-content:space-between;gap:16px;padding:15px 0;border-bottom:1px dashed var(--c-line)}
.cmp-row:last-child{border-bottom:0;padding-bottom:0}
.cmp-key{font-size:14px;font-weight:700;color:var(--c-ink);flex:0 0 auto}
.cmp-val{font-size:14px;color:var(--c-ink-2);text-align:right;line-height:1.7}
.tag-accent{
  display:inline-flex;align-items:center;padding:2px 9px;margin-left:6px;border-radius:999px;
  background:var(--c-accent-soft);color:#B4491C;font-size:12px;font-weight:700;white-space:nowrap;
}

/* ---------- 最新信息 ---------- */
.post-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.post-card{display:flex;flex-direction:column;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);box-shadow:var(--elev1);overflow:hidden;transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease)}
.post-card:hover{transform:translateY(-3px);box-shadow:var(--elev2);border-color:var(--c-primary-300)}
.post-cover{position:relative;display:block;margin:14px 14px 0;border-radius:var(--r-mid);overflow:hidden;border:1px solid var(--c-line);background:var(--c-primary-50);aspect-ratio:16/9}
.post-cover img{width:100%;height:100%;object-fit:cover;transition:transform .35s var(--ease)}
.post-card:hover .post-cover img{transform:scale(1.04)}
.post-body{display:flex;flex-direction:column;gap:10px;padding:18px 22px 22px;flex:1}
.post-title{margin:0;font-size:17px;font-weight:700;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-card:hover .post-title{color:var(--c-primary-600)}
.post-summary{margin:0;font-size:14px;line-height:1.8;color:var(--c-ink-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-meta{margin-top:auto;padding-top:12px;border-top:1px solid var(--c-line);display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:13px;color:var(--c-ink-2)}
.post-date{font-variant-numeric:tabular-nums}
.empty-card{
  grid-column:1/-1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;
  padding:56px 24px;text-align:center;background:var(--c-surface);border:1px dashed var(--c-line);
  border-radius:var(--r-card);color:var(--c-ink-2);font-size:15px;
}
.empty-icon{width:46px;height:46px;border-radius:999px;background:var(--c-primary-50);display:flex;align-items:center;justify-content:center;color:var(--c-primary)}
.empty-icon svg{width:22px;height:22px;fill:none;stroke:currentColor;stroke-width:1.75;stroke-linecap:round;stroke-linejoin:round}

/* ---------- FAQ ---------- */
.faq{max-width:840px}
.faq-item{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-mid);margin-bottom:12px;overflow:hidden;transition:border-color .2s var(--ease)}
.faq-item.open{border-color:var(--c-primary-300)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 22px;background:none;border:0;text-align:left;font-size:16px;font-weight:600;
  color:var(--c-ink);cursor:pointer;transition:background .2s var(--ease),color .2s var(--ease);
}
.faq-q:hover{color:var(--c-primary)}
.faq-item.open .faq-q{background:var(--c-bg);color:var(--c-primary-600)}
.faq-icon{position:relative;width:24px;height:24px;flex:0 0 auto;border-radius:999px;border:1px solid var(--c-line);background:#fff}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;left:50%;top:50%;background:var(--c-primary);transform:translate(-50%,-50%);transition:transform .22s var(--ease),opacity .22s var(--ease)}
.faq-icon::before{width:10px;height:2px}
.faq-icon::after{width:2px;height:10px}
.faq-item.open .faq-icon::after{transform:translate(-50%,-50%) rotate(90deg);opacity:0}
.faq-a{display:grid;grid-template-rows:0fr;transition:grid-template-rows .22s var(--ease)}
.faq-item.open .faq-a{grid-template-rows:1fr}
.faq-a-inner{overflow:hidden}
.faq-a p{margin:0 22px 20px;padding-left:16px;border-left:3px solid var(--c-primary);font-size:15px;line-height:1.85;color:var(--c-ink-2)}

/* ---------- 转化表单 ---------- */
.cta-block{
  display:grid;grid-template-columns:.82fr 1.18fr;gap:40px;
  background:#fff;border:1px solid var(--c-line);border-radius:24px;box-shadow:var(--elev1);padding:40px;
}
.cta-aside{display:flex;flex-direction:column;gap:20px}
.cta-list{margin:0;padding:0;list-style:none;display:flex;flex-direction:column;gap:14px}
.cta-list li{position:relative;padding-left:26px;font-size:15px;color:var(--c-ink-2);line-height:1.75}
.cta-list li::before{
  content:"";position:absolute;left:0;top:9px;width:14px;height:14px;border-radius:999px;
  background:var(--c-primary-50);border:1px solid var(--c-primary-300);
}
.cta-list li::after{content:"";position:absolute;left:4.5px;top:13px;width:5px;height:2px;background:var(--c-primary);border-radius:2px}
.contact-chip{
  display:inline-flex;align-items:center;gap:10px;align-self:flex-start;padding:10px 16px;border-radius:999px;
  background:var(--c-primary-50);border:1px solid var(--c-line);font-size:13px;font-weight:600;color:var(--c-primary);
}
.contact-chip svg{width:16px;height:16px;fill:none;stroke:currentColor;stroke-width:1.75;stroke-linecap:round;stroke-linejoin:round}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.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)}
.req{color:var(--c-accent);margin-left:3px}
.input,.textarea{
  width:100%;border:1px solid var(--c-line);border-radius:var(--r-btn);background:#fff;color:var(--c-ink);
  padding:12px 14px;font-size:15px;line-height:1.7;min-height:48px;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.textarea{min-height:150px;resize:vertical}
.input:hover,.textarea:hover{border-color:var(--c-primary-300)}
.input:focus,.textarea:focus{outline:none;border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(14,124,107,.14)}
.chips{display:flex;flex-wrap:wrap;gap:10px}
.chip{
  position:relative;display:inline-flex;align-items:center;min-height:44px;padding:0 18px;border-radius:999px;
  border:1px solid var(--c-line);background:#fff;color:var(--c-ink-2);font-size:14px;cursor:pointer;
  transition:background .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease);
}
.chip:hover{border-color:var(--c-primary-300);color:var(--c-primary)}
.chip input{position:absolute;opacity:0;width:1px;height:1px;pointer-events:none}
.chip:has(input:checked){background:var(--c-primary-50);border-color:var(--c-primary);color:var(--c-primary-600);font-weight:600}
.form-actions{grid-column:1/-1;display:flex;flex-wrap:wrap;align-items:center;gap:16px}
.form-hint{grid-column:1/-1;margin:0;min-height:22px;font-size:13px;color:var(--c-ink-2)}

/* ---------- 页脚 ---------- */
.site-footer{position:relative;background:var(--c-deep);color:#C9DCD8;margin-top:40px}
.site-footer::before{content:"";position:absolute;top:0;left:0;right:0;height:2px;background:var(--grad-brand)}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:36px;padding:64px 0 40px}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.footer-brand .brand-mark{box-shadow:none}
.footer-name{font-size:17px;font-weight:800;color:#fff;line-height:1.35}
.footer-desc{margin:0;font-size:14px;line-height:1.85;color:#9FBEB9;max-width:34em}
.footer-title{margin:0 0 16px;font-size:14px;font-weight:700;color:#fff;letter-spacing:.04em}
.footer-list{margin:0;padding:0;list-style:none;display:flex;flex-direction:column;gap:11px}
.footer-list a,.footer-list span{font-size:14px;color:#C9DCD8;line-height:1.7}
.footer-list a:hover{color:var(--c-primary-300)}
.footer-bottom{border-top:1px solid rgba(201,220,216,.16);padding:20px 0;text-align:center;font-size:13px;color:#8FAFAA}
.footer-bottom p{margin:0}

/* ---------- 移动端条 ---------- */
.mobile-bar{
  display:none;position:fixed;top:0;left:0;right:0;height:60px;z-index:65;
  align-items:center;gap:12px;padding:0 14px;background:#fff;border-bottom:1px solid var(--c-line);
  box-shadow:0 2px 12px rgba(16,32,30,.06);
}
.menu-btn{
  width:44px;height:44px;flex:0 0 auto;display:flex;align-items:center;justify-content:center;
  border-radius:var(--r-btn);border:1px solid var(--c-line);background:#fff;cursor:pointer;color:var(--c-ink);
  transition:background .2s var(--ease),border-color .2s var(--ease);
}
.menu-btn:hover{background:var(--c-primary-50);border-color:var(--c-primary-300)}
.menu-btn svg{width:22px;height:22px;fill:none;stroke:currentColor;stroke-width:1.9;stroke-linecap:round}
.mobile-brand{flex:1;min-width:0;font-size:15px;font-weight:800;line-height:1.25;letter-spacing:-.01em;overflow:hidden;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical}
.mobile-brand small{display:block;font-size:11px;font-weight:600;color:var(--c-primary);letter-spacing:.02em}
.scrim{position:fixed;inset:0;background:rgba(8,33,31,.5);z-index:70;opacity:0;pointer-events:none;transition:opacity .24s var(--ease)}
.scrim.show{opacity:1;pointer-events:auto}

/* ---------- 响应式 ---------- */
@media (max-width:1439px) and (min-width:1280px){
  :root{--sidebar-w:240px}
}
@media (max-width:1279px) and (min-width:1024px){
  :root{--sidebar-w:84px}
  .sidebar-inner{padding:20px 12px}
  .brand{justify-content:center;padding:0}
  .brand-text,.nav-label,.side-cta,.side-foot,.side-divider{display:none}
  .nav-item{justify-content:center;padding:0}
  .nav-item.active::before{left:-1px}
}
@media (max-width:1279px){
  .post-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:1023px){
  .mobile-bar{display:flex}
  .sidebar{
    width:78vw;max-width:320px;transform:translateX(-100%);
    transition:transform .24s var(--ease);z-index:80;box-shadow:0 0 40px rgba(8,33,31,.18);
  }
  .sidebar.open{transform:translateX(0)}
  .sidebar .side-cta,.sidebar .side-foot,.sidebar .side-divider{display:flex}
  .sidebar .side-foot{display:block}
  .main-wrap{margin-left:0;padding-top:60px}
  .hero{min-height:auto}
  .hero-inner{grid-template-columns:1fr;gap:28px;padding:44px 32px}
  .hero-title{font-size:34px}
  .kpi-grid{grid-template-columns:repeat(2,1fr)}
  .bento-lg,.bento-md,.bento-sm{grid-column:span 12}
  .compare{grid-template-columns:1fr}
  .cta-block{grid-template-columns:1fr;padding:28px;gap:28px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px;padding:52px 0 32px}
}
@media (max-width:767px){
  .wrap{padding:0 20px}
  .section{padding:56px 0}
  .section-title{font-size:24px}
  .hero{border-radius:20px}
  .hero-inner{padding:36px 22px}
  .hero-title{font-size:30px}
  .hero-sub{font-size:16px}
  .hero-actions{flex-direction:column;align-items:stretch}
  .hero-actions .btn{width:100%}
  .kpi-grid{grid-template-columns:repeat(2,1fr);gap:16px}
  .kpi{padding:20px 18px}
  .kpi-num{font-size:28px}
  .post-grid{grid-template-columns:1fr}
  .form-grid{grid-template-columns:1fr}
  .cta-block{padding:24px 20px;border-radius:20px}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .cmp-row{flex-direction:column;gap:6px}
  .cmp-val{text-align:left}
  .section-head{margin-bottom:28px}
}
@media (max-width:520px){
  .hero-title{font-size:27px}
  .badge-card{padding:14px 15px}
  .card-body{padding:18px 18px 20px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important}
  html{scroll-behavior:auto}
}

/* roulang page: article */
:root{
  --c-primary:#0E7C6B;
  --c-primary-600:#12A08A;
  --c-primary-300:#6FD3C0;
  --c-primary-50:#E8F7F3;
  --c-accent:#FF7A45;
  --c-accent-soft:#FFE7DB;
  --c-ink:#10201E;
  --c-ink-2:#4A5C59;
  --c-line:#DCE7E4;
  --c-bg:#F4F8F6;
  --c-surface:#FFFFFF;
  --c-deep:#08211F;
  --grad-brand:linear-gradient(135deg,#0E7C6B 0%,#12A08A 52%,#6FD3C0 100%);
  --grad-accent:linear-gradient(135deg,#FF7A45,#FFA96B);
  --r-card:20px;
  --r-mid:16px;
  --r-btn:12px;
  --sh-elev1:0 1px 2px rgba(16,32,30,.05),0 8px 24px rgba(16,32,30,.06);
  --sh-elev2:0 12px 32px rgba(14,124,107,.14);
  --ease:cubic-bezier(.2,.7,.3,1);
  --sidebar-w:264px;
  --pad-x:40px;
}
*,*::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:system-ui,-apple-system,"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Noto Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;object-fit:cover;}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease),background-color .2s var(--ease);}
button,input{font:inherit;color:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;line-height:1.25;letter-spacing:-.01em;}
p{margin:0;}
svg{display:block;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:6px;}
.num{font-variant-numeric:tabular-nums;letter-spacing:-.02em;font-weight:700;}

/* ---------- App shell ---------- */
.app{display:flex;min-height:100vh;}
.sidebar{
  position:fixed;top:0;left:0;bottom:0;width:var(--sidebar-w);
  background:var(--c-surface);border-right:1px solid var(--c-line);
  display:flex;flex-direction:column;gap:18px;
  padding:22px 16px 18px;overflow-y:auto;z-index:50;
  transition:width .22s var(--ease);
}
.brand{display:flex;align-items:flex-start;gap:10px;padding:6px 8px 14px;border-bottom:1px solid var(--c-line);}
.brand-mark{
  flex:0 0 auto;width:38px;height:38px;border-radius:12px;background:var(--grad-brand);
  display:flex;align-items:center;justify-content:center;color:#fff;box-shadow:var(--sh-elev1);
}
.brand-mark svg{width:20px;height:20px;}
.brand-text{display:flex;flex-direction:column;gap:2px;min-width:0;}
.brand-name{font-size:18px;font-weight:800;letter-spacing:-.02em;color:var(--c-ink);}
.brand-sub{font-size:13px;color:var(--c-primary);font-weight:600;}
.nav{display:flex;flex-direction:column;gap:4px;}
.nav-item{
  position:relative;display:flex;align-items:center;gap:12px;
  height:44px;padding:0 12px;border-radius:12px;
  font-size:15px;color:var(--c-ink-2);
}
.nav-item svg{width:20px;height:20px;flex:0 0 auto;stroke:currentColor;fill:none;stroke-width:1.75;stroke-linecap:round;stroke-linejoin:round;}
.nav-item:hover{background:rgba(232,247,243,.9);color:var(--c-primary);}
.nav-item.is-active{background:var(--c-primary-50);color:var(--c-primary-600);font-weight:600;}
.nav-item.is-active::before{
  content:"";position:absolute;left:0;top:9px;bottom:9px;width:3px;border-radius:3px;background:var(--grad-brand);
}
.side-sep{height:1px;background:var(--c-line);margin:4px 0;}
.side-cta{
  margin-top:auto;border:1px solid var(--c-line);border-radius:var(--r-mid);
  background:linear-gradient(180deg,#FFFFFF, #F7FCFA);padding:16px;box-shadow:var(--sh-elev1);
}
.side-cta h3{font-size:15px;font-weight:700;margin-bottom:6px;}
.side-cta p{font-size:13px;color:var(--c-ink-2);line-height:1.7;margin-bottom:12px;}
.side-note{font-size:12px;color:#7C918D;line-height:1.7;padding:0 4px;}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),background-color .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease);
}
.btn svg{width:18px;height:18px;stroke:currentColor;fill:none;stroke-width:1.9;stroke-linecap:round;stroke-linejoin:round;}
.btn-primary{background:var(--grad-accent);color:#fff;box-shadow:0 8px 20px rgba(255,122,69,.28);}
.btn-primary:hover{transform:translateY(-1px);box-shadow:0 12px 26px rgba(255,122,69,.34);}
.btn-primary:active{transform:translateY(0);box-shadow:inset 0 2px 6px rgba(0,0,0,.14);}
.btn-ghost{background:#fff;border-color:var(--c-line);color:var(--c-ink);}
.btn-ghost:hover{background:var(--c-primary-50);border-color:var(--c-primary-300);color:var(--c-primary);}
.btn-sm{min-height:40px;padding:0 16px;font-size:14px;border-radius:10px;}
.btn-block{width:100%;}
.link-arrow{display:inline-flex;align-items:center;gap:6px;color:var(--c-primary);font-size:14px;font-weight:600;}
.link-arrow svg{width:16px;height:16px;stroke:currentColor;fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;transition:transform .2s var(--ease);}
.link-arrow:hover svg{transform:translateX(3px);}

/* ---------- Main ---------- */
.main{margin-left:var(--sidebar-w);flex:1;min-width:0;display:flex;flex-direction:column;}
.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 var(--pad-x);}
.article-shell{padding:34px 0 0;}

/* ---------- Mobile bar ---------- */
.mobile-bar{
  display:none;position:sticky;top:0;z-index:60;
  height:60px;align-items:center;gap:10px;padding:0 14px;
  background:#fff;border-bottom:1px solid var(--c-line);box-shadow:0 2px 10px rgba(16,32,30,.05);
}
.menu-btn{
  width:44px;height:44px;border-radius:12px;border:1px solid var(--c-line);background:#fff;
  display:flex;align-items:center;justify-content:center;cursor:pointer;flex:0 0 auto;
}
.menu-btn svg{width:22px;height:22px;stroke:var(--c-ink);fill:none;stroke-width:1.9;stroke-linecap:round;}
.menu-btn:hover{background:var(--c-primary-50);border-color:var(--c-primary-300);}
.mobile-brand{display:flex;flex-direction:column;line-height:1.2;font-size:15px;font-weight:800;flex:1;min-width:0;}
.mobile-brand small{font-size:11.5px;font-weight:500;color:var(--c-ink-2);letter-spacing:0;}
.overlay{
  position:fixed;inset:0;background:rgba(8,33,31,.5);opacity:0;visibility:hidden;
  transition:opacity .22s var(--ease),visibility .22s var(--ease);z-index:70;
}
body.drawer-open .overlay{opacity:1;visibility:visible;}

/* ---------- Breadcrumb ---------- */
.breadcrumb{
  display:flex;align-items:center;flex-wrap:nowrap;gap:8px;overflow:hidden;
  font-size:13px;color:var(--c-ink-2);margin-bottom:18px;
}
.breadcrumb a{color:var(--c-ink-2);white-space:nowrap;}
.breadcrumb a:hover{color:var(--c-primary);}
.breadcrumb .sep{color:#A8BAB6;}
.breadcrumb .current{color:var(--c-ink);font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.crumb-cat{white-space:nowrap;}

/* ---------- Article header ---------- */
.article-head{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:32px 34px 30px;box-shadow:var(--sh-elev1);position:relative;overflow:hidden;
}
.article-head::after{
  content:"";position:absolute;left:0;top:0;height:3px;width:100%;background:var(--grad-brand);opacity:.9;
}
.badges{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:16px;}
.badge{
  display:inline-flex;align-items:center;gap:6px;height:28px;padding:0 12px;border-radius:999px;
  font-size:13px;font-weight:600;background:var(--c-primary-50);color:var(--c-primary);
  border:1px solid rgba(14,124,107,.14);
}
.badge-accent{background:var(--c-accent-soft);color:#C4471A;border-color:rgba(255,122,69,.24);}
.badge-plain{background:#F4F8F6;color:var(--c-ink-2);border-color:var(--c-line);}
.article-head h1{font-size:32px;font-weight:800;letter-spacing:-.02em;margin-bottom:14px;}
.hero-figure{margin:26px 0 0;border-radius:var(--r-card);overflow:hidden;border:1px solid var(--c-line);background:var(--c-primary-50);}
.hero-figure img{width:100%;aspect-ratio:16/9;border-radius:var(--r-card);}
.figcap{font-size:13px;color:var(--c-ink-2);text-align:center;padding:10px 12px 0;}

/* ---------- Layout with sticky side ---------- */
.article-layout{display:grid;grid-template-columns:minmax(0,1fr);gap:34px;margin-top:30px;align-items:start;}
.article-main{min-width:0;}

/* ---------- Prose ---------- */
.article-body{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:34px 34px 38px;box-shadow:var(--sh-elev1);max-width:100%;
}
.article-body > *{max-width:760px;}
.article-body h2{
  position:relative;font-size:25px;font-weight:800;margin:40px 0 16px;padding-left:16px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:4px;background:var(--grad-brand);
}
.article-body h2:first-child{margin-top:0;}
.article-body h3{font-size:20px;font-weight:700;margin:28px 0 12px;}
.article-body p{font-size:17px;line-height:1.9;color:#1E322F;margin:0 0 1.4em;}
.article-body ul,.article-body ol{margin:0 0 1.5em;padding-left:4px;}
.article-body li{position:relative;font-size:16.5px;line-height:1.85;color:#1E322F;padding-left:20px;margin-bottom:10px;}
.article-body ul li::before{
  content:"";position:absolute;left:2px;top:.72em;width:7px;height:7px;border-radius:50%;background:var(--c-primary-300);
}
.article-body ol{counter-reset:item;}
.article-body ol li{counter-increment:item;padding-left:28px;}
.article-body ol li::before{
  content:counter(item);position:absolute;left:0;top:.24em;width:20px;height:20px;border-radius:6px;
  background:var(--c-primary-50);color:var(--c-primary);font-size:12px;font-weight:700;
  display:flex;align-items:center;justify-content:center;font-variant-numeric:tabular-nums;
}
.article-body blockquote{
  margin:0 0 1.5em;padding:18px 22px;background:var(--c-primary-50);
  border-left:4px solid var(--c-primary);border-radius:12px;color:#163B35;font-size:16.5px;
}
.article-body blockquote p{margin:0;font-size:16.5px;}
.article-body a{color:var(--c-primary);font-weight:600;border-bottom:1px solid rgba(14,124,107,.3);}
.article-body a:hover{color:var(--c-primary-600);border-bottom-color:var(--c-primary-600);}
.article-body img{border-radius:var(--r-mid);border:1px solid var(--c-line);margin:6px 0 16px;background:var(--c-primary-50);}
.article-body figure{margin:0 0 1.6em;}
.article-body figcaption{font-size:13px;color:var(--c-ink-2);text-align:center;padding-top:8px;}
.article-body code{
  background:#EEF6F4;border:1px solid var(--c-line);border-radius:6px;padding:2px 6px;font-size:14.5px;
}
.article-body hr{border:0;height:1px;background:var(--c-line);margin:34px 0;}
.article-body table{
  width:100%;border-collapse:collapse;margin:0 0 1.6em;font-size:15px;
  border:1px solid var(--c-line);border-radius:12px;overflow:hidden;
}
.article-body thead th{background:var(--c-primary-50);color:var(--c-ink);text-align:left;font-weight:700;}
.article-body th,.article-body td{padding:13px 16px;border-bottom:1px solid var(--c-line);}
.article-body tbody tr:nth-child(even){background:#F8FCFB;}
.article-body tbody tr:last-child td{border-bottom:0;}
.article-body .table-scroll{overflow-x:auto;}

/* ---------- Empty state ---------- */
.empty-state{
  background:var(--c-surface);border:1px dashed var(--c-line);border-radius:var(--r-card);
  padding:64px 28px;text-align:center;box-shadow:var(--sh-elev1);
}
.empty-state svg{width:56px;height:56px;margin:0 auto 18px;stroke:var(--c-primary-300);fill:none;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round;}
.empty-title{font-size:20px;font-weight:700;margin-bottom:8px;}
.empty-desc{font-size:15px;color:var(--c-ink-2);margin-bottom:22px;}

/* ---------- Prev / next ---------- */
.pager{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:30px;}
.pager-card{
  display:block;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-mid);
  padding:20px 22px;box-shadow:var(--sh-elev1);transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.pager-card:hover{transform:translateY(-3px);box-shadow:var(--sh-elev2);border-color:var(--c-primary-300);}
.pager-label{font-size:13px;color:var(--c-ink-2);margin-bottom:6px;display:flex;align-items:center;gap:6px;}
.pager-label svg{width:15px;height:15px;stroke:currentColor;fill:none;stroke-width:1.9;stroke-linecap:round;stroke-linejoin:round;}
.pager-title{font-size:16px;font-weight:700;line-height:1.5;}
.pager-card.next{text-align:right;}
.pager-card.next .pager-label{justify-content:flex-end;}

/* ---------- Related ---------- */
.section{margin-top:52px;}
.section-head{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:22px;}
.section-head h2{
  position:relative;font-size:24px;font-weight:800;padding-left:16px;letter-spacing:-.02em;
}
.section-head h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:4px;background:var(--grad-brand);
}
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;}
.card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-elev1);display:flex;flex-direction:column;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.card:hover{transform:translateY(-3px);box-shadow:var(--sh-elev2);border-color:var(--c-primary-300);}
.card-media{position:relative;background:var(--c-primary-50);}
.card-media img{width:100%;aspect-ratio:16/9;}
.card-media .badge{position:absolute;left:12px;bottom:12px;background:rgba(255,255,255,.92);backdrop-filter:blur(4px);}
.card-body{padding:20px 20px 22px;display:flex;flex-direction:column;gap:10px;flex:1;}
.card-title{font-size:17px;font-weight:700;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.card-text{font-size:14.5px;color:var(--c-ink-2);line-height:1.75;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.card-meta{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:10px;padding-top:6px;font-size:13px;color:var(--c-ink-2);}

/* ---------- Sticky side ---------- */
.article-side{display:flex;flex-direction:column;gap:20px;position:sticky;top:28px;}
.side-panel{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-mid);
  padding:22px;box-shadow:var(--sh-elev1);
}
.side-panel h3{font-size:16px;font-weight:700;margin-bottom:14px;display:flex;align-items:center;gap:8px;}
.side-panel h3::before{content:"";width:4px;height:16px;border-radius:4px;background:var(--grad-brand);}
.mini-list li{padding:11px 0;border-bottom:1px dashed var(--c-line);}
.mini-list li:last-child{border-bottom:0;padding-bottom:0;}
.mini-list a{font-size:14.5px;color:#24403B;line-height:1.6;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.mini-list a:hover{color:var(--c-primary);}
.promo{
  border-radius:var(--r-mid);padding:22px;color:#fff;
  background:linear-gradient(150deg,#0E7C6B 0%,#12A08A 58%,#6FD3C0 100%);
  box-shadow:var(--sh-elev2);
}
.promo h3{font-size:17px;font-weight:800;margin-bottom:8px;}
.promo p{font-size:13.5px;line-height:1.75;color:rgba(255,255,255,.9);margin-bottom:16px;}
.promo .btn{background:#fff;color:var(--c-primary);box-shadow:none;}
.promo .btn:hover{background:var(--c-primary-50);}

/* ---------- Back bar ---------- */
.back-bar{display:flex;justify-content:center;margin-top:34px;}

/* ---------- Footer ---------- */
.site-footer{
  margin-top:64px;background:var(--c-deep);color:#C9DCD8;position:relative;
}
.site-footer::before{content:"";position:absolute;top:0;left:0;right:0;height:2px;background:var(--grad-brand);}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:34px;
  padding:54px 0 34px;
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.footer-brand .brand-mark{width:34px;height:34px;border-radius:10px;}
.footer-name{font-size:17px;font-weight:800;color:#fff;letter-spacing:-.01em;}
.footer-desc{font-size:13.5px;line-height:1.85;color:#9FBBB6;max-width:34em;}
.footer-title{font-size:14px;font-weight:700;color:#fff;margin-bottom:14px;letter-spacing:.02em;}
.footer-list li{margin-bottom:10px;}
.footer-list a,.footer-list span{font-size:13.5px;color:#B9D2CE;line-height:1.6;}
.footer-list a:hover{color:var(--c-primary-300);}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);padding:20px 0 30px;text-align:center;
}
.footer-bottom p{font-size:13px;color:#8FADA8;}

/* ---------- Responsive ---------- */
@media (max-width:1439px){
  :root{--sidebar-w:240px;}
}
@media (max-width:1279px){
  .article-layout{grid-template-columns:minmax(0,1fr);}
  .article-side{position:static;}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
}
@media (min-width:1024px) and (max-width:1279px){
  :root{--sidebar-w:84px;--pad-x:32px;}
  .sidebar{padding:18px 12px;align-items:center;overflow:visible;}
  .brand{flex-direction:column;align-items:center;gap:8px;padding-bottom:12px;width:100%;}
  .brand-text{display:none;}
  .nav{width:100%;}
  .nav-item{justify-content:center;padding:0;height:46px;}
  .nav-item .nav-label{display:none;}
  .nav-item.is-active::before{left:-12px;}
  .side-cta,.side-note{display:none;}
  .nav-item:hover .nav-label{
    display:block;position:absolute;left:calc(100% + 12px);top:50%;transform:translateY(-50%);
    background:var(--c-deep);color:#fff;font-size:13px;font-weight:600;white-space:nowrap;
    padding:8px 12px;border-radius:10px;z-index:80;box-shadow:var(--sh-elev1);
  }
}
@media (max-width:1023px){
  :root{--pad-x:24px;}
  .sidebar{
    width:78vw;max-width:320px;transform:translateX(-102%);
    transition:transform .24s var(--ease);box-shadow:var(--sh-elev1);
  }
  body.drawer-open .sidebar{transform:translateX(0);}
  .main{margin-left:0;}
  .mobile-bar{display:flex;}
  .article-head h1{font-size:26px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:26px;padding:44px 0 26px;}
}
@media (max-width:767px){
  :root{--pad-x:20px;}
  body{font-size:15.5px;}
  .article-shell{padding-top:22px;}
  .article-head{padding:24px 20px;}
  .article-head h1{font-size:24px;}
  .article-body{padding:24px 20px 28px;}
  .article-body h2{font-size:22px;margin-top:32px;}
  .article-body h3{font-size:18px;}
  .article-body p,.article-body li{font-size:16px;}
  .card-grid{grid-template-columns:1fr;}
  .pager{grid-template-columns:1fr;}
  .pager-card.next{text-align:left;}
  .pager-card.next .pager-label{justify-content:flex-start;}
  .section{margin-top:44px;}
  .section-head h2{font-size:20px;}
  .footer-grid{grid-template-columns:1fr;gap:22px;}
  .footer-bottom p{font-size:12.5px;line-height:1.7;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;}
  html{scroll-behavior:auto;}
}

/* roulang page: category1 */
:root{
    --c-primary:#0E7C6B;
    --c-primary-600:#12A08A;
    --c-primary-300:#6FD3C0;
    --c-primary-50:#E8F7F3;
    --c-accent:#FF7A45;
    --c-accent-soft:#FFE7DB;
    --c-ink:#10201E;
    --c-ink-2:#4A5C59;
    --c-line:#DCE7E4;
    --c-bg:#F4F8F6;
    --c-surface:#FFFFFF;
    --c-deep:#08211F;
    --grad-brand:linear-gradient(135deg,#0E7C6B 0%,#12A08A 52%,#6FD3C0 100%);
    --grad-cta:linear-gradient(135deg,#FF7A45,#FFA96B);
    --r-card:20px;
    --r-mid:16px;
    --r-btn:12px;
    --elev1:0 1px 2px rgba(16,32,30,.05), 0 8px 24px rgba(16,32,30,.06);
    --elev2:0 12px 32px rgba(14,124,107,.14);
    --sidebar-w:264px;
    --ease:cubic-bezier(.2,.7,.3,1);
  }

  *,*::before,*::after{box-sizing:border-box;}
  html{-webkit-text-size-adjust:100%;}
  body{
    margin:0;
    font-family:system-ui,-apple-system,"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Noto Sans SC","Microsoft YaHei",sans-serif;
    font-size:16px;
    line-height:1.85;
    color:var(--c-ink);
    background:var(--c-bg);
  }
  img{max-width:100%;display:block;}
  a{color:inherit;text-decoration:none;}
  button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}
  h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
  ul,ol{padding:0;list-style:none;}
  svg{display:block;}
  :focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:8px;}

  .wrap{max-width:1200px;margin:0 auto;padding:0 40px;}

  /* ============ 左侧 App Shell ============ */
  .sidebar{
    position:fixed;top:0;left:0;bottom:0;width:var(--sidebar-w);
    background:var(--c-surface);border-right:1px solid var(--c-line);
    display:flex;flex-direction:column;gap:20px;
    padding:24px 16px;overflow-y:auto;z-index:60;
    transition:width .22s var(--ease),transform .24s var(--ease),box-shadow .22s var(--ease);
  }
  .brand{display:flex;align-items:center;gap:12px;padding:6px 8px 16px;border-bottom:1px solid var(--c-line);}
  .brand-mark{
    flex:none;width:40px;height:40px;border-radius:12px;background:var(--grad-brand);color:#fff;
    display:flex;align-items:center;justify-content:center;box-shadow:var(--elev1);
  }
  .brand-mark svg{width:22px;height:22px;stroke:currentColor;fill:none;stroke-width:1.75;stroke-linecap:round;stroke-linejoin:round;}
  .brand-text{display:flex;flex-direction:column;line-height:1.3;min-width:0;}
  .brand-text strong{font-size:18px;font-weight:800;letter-spacing:-.02em;color:var(--c-ink);white-space:nowrap;}
  .brand-text small{font-size:13px;color:var(--c-primary);font-weight:600;letter-spacing:.02em;}

  .nav{display:flex;flex-direction:column;gap:4px;}
  .nav-item{
    position:relative;display:flex;align-items:center;gap:12px;height:44px;padding:0 12px;
    border-radius:12px;font-size:15px;color:var(--c-ink-2);
    transition:background .2s var(--ease),color .2s var(--ease),transform .2s var(--ease);
  }
  .nav-item svg{width:20px;height:20px;flex:none;stroke:currentColor;fill:none;stroke-width:1.75;stroke-linecap:round;stroke-linejoin:round;}
  .nav-item:hover{background:rgba(232,247,243,.65);color:var(--c-primary);}
  .nav-item.active{background:var(--c-primary-50);color:var(--c-primary-600);font-weight:600;}
  .nav-item.active::before{
    content:"";position:absolute;left:0;top:9px;bottom:9px;width:3px;border-radius:3px;background:var(--grad-brand);
  }
  .nav-text{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}

  .side-card{
    margin-top:auto;background:var(--c-primary-50);border:1px solid rgba(14,124,107,.16);
    border-radius:var(--r-mid);padding:18px;box-shadow:var(--elev1);
  }
  .side-card-title{font-size:15px;font-weight:700;color:var(--c-ink);}
  .side-card-text{font-size:13px;color:var(--c-ink-2);line-height:1.7;margin:6px 0 14px;}
  .side-foot{font-size:12px;color:#8AA09C;line-height:1.6;}

  .main{margin-left:var(--sidebar-w);min-height:100vh;display:flex;flex-direction:column;}

  /* ============ 顶栏（平板/手机） ============ */
  .mobile-bar{
    display:none;position:fixed;top:0;left:0;right:0;height:60px;z-index:70;
    align-items:center;gap:12px;padding:0 16px;background:var(--c-surface);
    border-bottom:1px solid var(--c-line);box-shadow:0 1px 2px rgba(16,32,30,.06);
  }
  .mobile-brand{display:flex;flex-direction:column;line-height:1.2;flex:1;min-width:0;}
  .mobile-brand{font-size:15px;font-weight:800;letter-spacing:-.01em;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
  .mobile-brand small{font-size:11px;font-weight:500;color:var(--c-ink-2);}
  .menu-btn{
    width:44px;height:44px;flex:none;border-radius:12px;border:1px solid var(--c-line);
    display:flex;align-items:center;justify-content:center;background:#fff;
    transition:background .2s var(--ease),border-color .2s var(--ease);
  }
  .menu-btn:hover{background:var(--c-primary-50);border-color:var(--c-primary-300);}
  .menu-btn svg{width:22px;height:22px;stroke:var(--c-ink);fill:none;stroke-width:1.75;stroke-linecap:round;}

  .overlay{
    position:fixed;inset:0;background:rgba(8,33,31,.5);opacity:0;visibility:hidden;
    transition:opacity .24s var(--ease),visibility .24s var(--ease);z-index:55;
  }
  .overlay.show{opacity:1;visibility:visible;}

  /* ============ 按钮 ============ */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    min-height:48px;padding:0 22px;border-radius:var(--r-btn);
    font-size:15px;font-weight:600;line-height:1;cursor:pointer;
    transition:transform .18s var(--ease),box-shadow .18s var(--ease),background .18s var(--ease),border-color .18s var(--ease);
  }
  .btn:active{transform:translateY(0);}
  .btn-primary{background:var(--grad-cta);color:#fff;box-shadow:0 8px 20px rgba(255,122,69,.28);}
  .btn-primary:hover{transform:translateY(-1px);box-shadow:0 12px 26px rgba(255,122,69,.34);}
  .btn-primary:active{box-shadow:inset 0 2px 6px rgba(120,45,10,.25);}
  .btn-ghost{background:#fff;border:1px solid var(--c-line);color:var(--c-ink);}
  .btn-ghost:hover{background:var(--c-primary-50);border-color:var(--c-primary-300);transform:translateY(-1px);}
  .btn-sm{min-height:38px;padding:0 14px;font-size:13.5px;border-radius:10px;}
  .btn-block{width:100%;}
  .btn svg{width:18px;height:18px;stroke:currentColor;fill:none;stroke-width:1.9;stroke-linecap:round;stroke-linejoin:round;}
  .text-link{
    display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--c-primary);
  }
  .text-link svg{width:16px;height:16px;stroke:currentColor;fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;transition:transform .2s var(--ease);}
  .text-link:hover svg{transform:translateX(2px);}

  /* ============ 页头 Hero ============ */
  .page-hero{
    position:relative;min-height:360px;display:flex;align-items:flex-end;
    padding:64px 0 44px;color:#fff;overflow:hidden;
    background-image:
      linear-gradient(135deg,rgba(14,124,107,.90) 0%,rgba(18,160,138,.84) 52%,rgba(111,211,192,.80) 100%),
      url('/assets/images/backpic/back-2.png');
    background-size:cover;background-position:center;
  }
  .page-hero::after{
    content:"";position:absolute;left:0;right:0;bottom:0;height:1px;background:var(--grad-brand);
  }
  .crumbs{display:flex;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.86);margin-bottom:16px;flex-wrap:wrap;}
  .crumbs a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px;}
  .crumbs span.sep{opacity:.6;}
  .hero-tag{
    display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;
    background:rgba(255,255,255,.18);border:1px solid rgba(255,255,255,.34);
    font-size:13px;font-weight:600;letter-spacing:.02em;backdrop-filter:blur(8px);
  }
  .page-hero h1{
    font-size:44px;line-height:1.25;font-weight:800;letter-spacing:-.02em;margin:16px 0 12px;
    text-shadow:0 2px 12px rgba(8,33,31,.28);
  }
  .hero-lead{font-size:17px;line-height:1.8;color:rgba(255,255,255,.94);max-width:640px;}
  .hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px;}
  .hero-tags li{
    font-size:13px;padding:6px 14px;border-radius:999px;background:rgba(255,255,255,.16);
    border:1px solid rgba(255,255,255,.3);
  }

  /* ============ 板块通用 ============ */
  .section{padding:88px 0;}
  .section.tight{padding:64px 0;}
  .section-head{max-width:720px;margin-bottom:40px;}
  .section-head h2{
    position:relative;font-size:30px;line-height:1.3;font-weight:800;letter-spacing:-.02em;padding-left:16px;
  }
  .section-head h2::before{
    content:"";position:absolute;left:0;top:8px;bottom:8px;width:4px;border-radius:3px;background:var(--grad-brand);
  }
  .section-head p{margin-top:12px;font-size:15.5px;color:var(--c-ink-2);}
  .bg-white{background:var(--c-surface);border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line);}

  .with-anchor{display:block;}
  .anchor-col{display:none;}
  .anchor-card{
    background:#fff;border:1px solid var(--c-line);border-radius:var(--r-mid);
    padding:20px;box-shadow:var(--elev1);
  }
  .anchor-card h3{font-size:14px;font-weight:700;color:var(--c-ink);letter-spacing:.02em;margin-bottom:12px;}
  .anchor-link{
    display:block;padding:9px 12px;border-radius:10px;font-size:14px;color:var(--c-ink-2);
    border-left:2px solid transparent;transition:all .2s var(--ease);
  }
  .anchor-link:hover{background:var(--c-primary-50);color:var(--c-primary);}
  .anchor-link.current{background:var(--c-primary-50);color:var(--c-primary-600);font-weight:600;border-left-color:var(--c-primary);}

  /* ============ 步骤条 ============ */
  .steps{display:flex;flex-direction:column;}
  .step{position:relative;padding:0 0 26px 76px;}
  .step::before{
    content:"";position:absolute;left:25px;top:56px;bottom:0;width:2px;
    background:linear-gradient(180deg,var(--c-primary-300),rgba(111,211,192,.15));
  }
  .step:last-child{padding-bottom:0;}
  .step:last-child::before{display:none;}
  .step-dot{
    position:absolute;left:0;top:0;width:52px;height:52px;border-radius:16px;
    background:var(--grad-brand);color:#fff;display:flex;align-items:center;justify-content:center;
    font-size:17px;font-weight:800;letter-spacing:-.02em;font-variant-numeric:tabular-nums;
    box-shadow:var(--elev2);
  }
  .step-body{
    background:#fff;border:1px solid var(--c-line);border-radius:var(--r-mid);
    padding:22px 24px;box-shadow:var(--elev1);
    transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
  }
  .step-body:hover{transform:translateY(-3px);border-color:var(--c-primary-300);box-shadow:var(--elev2);}
  .step-body h3{font-size:19px;font-weight:700;letter-spacing:-.01em;}
  .step-body p{margin-top:8px;font-size:15.5px;color:var(--c-ink-2);}
  .step-note{
    display:inline-flex;align-items:center;gap:6px;margin-top:14px;padding:5px 12px;border-radius:999px;
    background:var(--c-primary-50);color:var(--c-primary);font-size:13px;font-weight:600;
  }
  .step-note.warn{background:var(--c-accent-soft);color:#B2461A;}

  /* ============ 准备事项（图文） ============ */
  .prepare{display:grid;grid-template-columns:6fr 6fr;gap:40px;align-items:center;}
  .figure-card{
    position:relative;border-radius:var(--r-card);overflow:hidden;border:1px solid var(--c-line);
    background:var(--c-primary-50);box-shadow:var(--elev1);
  }
  .figure-card img{width:100%;height:340px;object-fit:cover;}
  .figure-badge{
    position:absolute;left:16px;bottom:16px;padding:6px 14px;border-radius:999px;
    background:rgba(255,255,255,.9);color:var(--c-primary);font-size:13px;font-weight:700;
    border:1px solid rgba(14,124,107,.18);
  }
  .check-list{display:flex;flex-direction:column;gap:14px;}
  .check-item{
    display:flex;gap:14px;padding:18px 20px;background:#fff;border:1px solid var(--c-line);
    border-radius:var(--r-mid);box-shadow:var(--elev1);
    transition:transform .2s var(--ease),border-color .2s var(--ease);
  }
  .check-item:hover{transform:translateY(-3px);border-color:var(--c-primary-300);}
  .check-icon{
    flex:none;width:32px;height:32px;border-radius:10px;background:var(--c-primary-50);
    color:var(--c-primary);display:flex;align-items:center;justify-content:center;
  }
  .check-icon svg{width:18px;height:18px;stroke:currentColor;fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;}
  .check-item h4{font-size:16.5px;font-weight:700;}
  .check-item p{font-size:14.5px;color:var(--c-ink-2);margin-top:4px;}

  /* ============ 情形卡 ============ */
  .case-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px;}
  .case-card{
    position:relative;background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);
    padding:26px 26px 26px 30px;box-shadow:var(--elev1);overflow:hidden;
    transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
  }
  .case-card::before{content:"";position:absolute;left:0;top:22px;bottom:22px;width:3px;border-radius:3px;background:var(--grad-brand);}
  .case-card:hover{transform:translateY(-3px);border-color:var(--c-primary-300);box-shadow:var(--elev2);}
  .case-tag{
    display:inline-flex;align-items:center;padding:4px 12px;border-radius:999px;font-size:12.5px;font-weight:700;
    background:var(--c-accent-soft);color:#B2461A;margin-bottom:12px;
  }
  .case-tag.quiet{background:var(--c-primary-50);color:var(--c-primary);}
  .case-card h3{font-size:17px;font-weight:700;letter-spacing:-.01em;}
  .case-card p{margin-top:8px;font-size:14.8px;color:var(--c-ink-2);}

  /* ============ FAQ ============ */
  .faq{max-width:840px;display:flex;flex-direction:column;gap:12px;}
  .faq-item{
    background:#fff;border:1px solid var(--c-line);border-radius:var(--r-mid);overflow:hidden;
    transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
  }
  .faq-item.open{border-color:var(--c-primary-300);box-shadow:var(--elev1);}
  .faq-q{
    width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
    padding:20px 22px;text-align:left;font-size:16.5px;font-weight:600;
    transition:background .2s var(--ease),color .2s var(--ease);
  }
  .faq-q:hover{background:var(--c-primary-50);}
  .faq-item.open .faq-q{background:var(--c-bg);box-shadow:inset 3px 0 0 var(--c-primary);}
  .faq-ico{
    flex:none;width:24px;height:24px;border-radius:50%;border:1.5px solid var(--c-primary-300);
    position:relative;color:var(--c-primary);
  }
  .faq-ico::before,.faq-ico::after{
    content:"";position:absolute;left:50%;top:50%;background:currentColor;border-radius:2px;
    transform:translate(-50%,-50%);
  }
  .faq-ico::before{width:10px;height:1.6px;}
  .faq-ico::after{width:1.6px;height:10px;transition:transform .22s var(--ease);}
  .faq-item.open .faq-ico::after{transform:translate(-50%,-50%) scaleY(0);}
  .faq-a{display:grid;grid-template-rows:0fr;transition:grid-template-rows .22s var(--ease);}
  .faq-item.open .faq-a{grid-template-rows:1fr;}
  .faq-a > div{overflow:hidden;}
  .faq-a p{padding:0 22px 20px;font-size:15px;color:var(--c-ink-2);}

  /* ============ 通栏 CTA ============ */
  .cta-band{
    background:var(--c-primary-50);border:1px solid rgba(14,124,107,.18);border-radius:var(--r-card);
    padding:40px;display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
    box-shadow:var(--elev1);
  }
  .cta-band h2{font-size:24px;font-weight:800;letter-spacing:-.02em;}
  .cta-band p{margin-top:8px;font-size:15px;color:var(--c-ink-2);max-width:560px;}
  .cta-actions{display:flex;gap:14px;flex-wrap:wrap;}

  /* ============ 页脚 ============ */
  .site-footer{
    margin-top:auto;background:var(--c-deep);color:#C9DCD8;position:relative;padding:64px 0 28px;
  }
  .site-footer::before{content:"";position:absolute;top:0;left:0;right:0;height:1px;background:var(--grad-brand);}
  .footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;}
  .footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:14px;}
  .footer-brand .brand-mark{box-shadow:none;}
  .footer-name{font-size:17px;font-weight:800;color:#fff;letter-spacing:-.01em;}
  .footer-desc{font-size:13.5px;line-height:1.85;color:#A9C3BE;max-width:340px;}
  .footer-title{font-size:14px;font-weight:700;color:#fff;letter-spacing:.04em;margin-bottom:16px;}
  .footer-list{display:flex;flex-direction:column;gap:10px;font-size:13.5px;}
  .footer-list a,.footer-list span{color:#C9DCD8;}
  .footer-list a{transition:color .2s var(--ease);}
  .footer-list a:hover{color:var(--c-primary-300);}
  .footer-bottom{margin-top:44px;padding-top:22px;border-top:1px solid rgba(201,220,216,.18);text-align:center;font-size:13px;color:#9DB8B3;}

  /* ============ 侧栏折叠（1024–1279） ============ */
  @media (min-width:1024px) and (max-width:1279px){
    :root{--sidebar-w:84px;}
    .sidebar{padding:20px 12px;align-items:center;}
    .brand{flex-direction:column;gap:8px;padding:6px 0 14px;width:100%;align-items:center;}
    .brand-text,.nav-text,.side-card,.side-foot{display:none;}
    .nav{width:100%;}
    .nav-item{justify-content:center;padding:0;}
    .sidebar:hover,.sidebar:focus-within{
      width:240px;padding:24px 16px;align-items:stretch;box-shadow:var(--elev2);
    }
    .sidebar:hover .brand{flex-direction:row;align-items:center;padding:6px 8px 16px;}
    .sidebar:hover .brand-text,.sidebar:hover .nav-text,.sidebar:hover .side-foot{display:block;}
    .sidebar:hover .nav-text{display:inline;}
    .sidebar:hover .nav-item{justify-content:flex-start;padding:0 12px;}
    .sidebar:hover .side-card{display:block;}
  }

  /* ============ 平板 / 手机 ============ */
  @media (max-width:1023px){
    .mobile-bar{display:flex;}
    .sidebar{
      width:78vw;max-width:320px;transform:translateX(-100%);
      padding:22px 16px;box-shadow:var(--elev2);
    }
    .sidebar.open{transform:translateX(0);}
    .nav-item{height:48px;font-size:15.5px;}
    .main{margin-left:0;padding-top:60px;}
    .page-hero{padding:44px 0 36px;min-height:320px;}
    .page-hero h1{font-size:32px;}
    .hero-lead{font-size:15.5px;}
    .section{padding:60px 0;}
    .wrap{padding:0 20px;}
    .section-head h2{font-size:24px;}
    .prepare{grid-template-columns:1fr;gap:28px;}
    .figure-card img{height:260px;}
    .case-grid{grid-template-columns:1fr;}
    .cta-band{padding:28px;}
    .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  }

  @media (max-width:520px){
    .page-hero h1{font-size:28px;}
    .hero-tags{gap:8px;}
    .step{padding-left:64px;}
    .step-dot{width:44px;height:44px;border-radius:14px;font-size:15px;}
    .step::before{left:21px;top:48px;}
    .step-body{padding:18px 18px;}
    .step-body h3{font-size:17px;}
    .cta-band{flex-direction:column;align-items:flex-start;}
    .cta-actions{width:100%;}
    .cta-actions .btn{width:100%;}
    .footer-grid{grid-template-columns:1fr;}
    .footer-bottom{font-size:12px;}
  }

  @media (min-width:1280px){
    .with-anchor{display:grid;grid-template-columns:minmax(0,1fr) 240px;gap:40px;align-items:start;}
    .anchor-col{display:block;}
    .anchor-card{position:sticky;top:24px;}
  }

  @media (prefers-reduced-motion:reduce){
    *{animation-duration:.01ms !important;transition-duration:.01ms !important;scroll-behavior:auto !important;}
  }

/* roulang page: category2 */
:root{
  --c-primary:#0E7C6B;
  --c-primary-600:#12A08A;
  --c-primary-300:#6FD3C0;
  --c-primary-50:#E8F7F3;
  --c-accent:#FF7A45;
  --c-accent-soft:#FFE7DB;
  --c-accent-deep:#D9511F;
  --c-ink:#10201E;
  --c-ink-2:#4A5C59;
  --c-line:#DCE7E4;
  --c-bg:#F4F8F6;
  --c-surface:#FFFFFF;
  --c-deep:#08211F;
  --grad-brand:linear-gradient(135deg,#0E7C6B 0%,#12A08A 52%,#6FD3C0 100%);
  --grad-cta:linear-gradient(135deg,#FF7A45,#FFA96B);
  --r-card:20px;
  --r-mid:16px;
  --r-btn:12px;
  --elev1:0 1px 2px rgba(16,32,30,.05), 0 8px 24px rgba(16,32,30,.06);
  --elev2:0 12px 32px rgba(14,124,107,.14);
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::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:system-ui,-apple-system,"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Noto Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;background:var(--c-primary-50)}
a{color:inherit;text-decoration:none}
button,input,textarea,select{font:inherit;color:inherit}
button{cursor:pointer;background:none;border:0}
h1,h2,h3,h4{margin:0;line-height:1.25;font-weight:700;letter-spacing:-0.01em}
p{margin:0}
ul,ol,dl,dd{margin:0}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:6px}
.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 40px}
.tnum{font-variant-numeric:tabular-nums;letter-spacing:-0.02em}

/* ============ 侧栏 App Shell ============ */
.sidebar{
  position:fixed;top:0;left:0;bottom:0;width:264px;z-index:70;
  background:var(--c-surface);border-right:1px solid var(--c-line);
  display:flex;flex-direction:column;gap:20px;
  padding:24px 18px 18px;overflow-y:auto;overflow-x:hidden;
  transition:width .24s var(--ease),transform .26s var(--ease),box-shadow .24s var(--ease);
}
.side-logo{display:flex;align-items:center;gap:11px;min-height:44px;padding:0 6px;white-space:nowrap}
.brand-mark{
  flex:0 0 auto;width:38px;height:38px;border-radius:12px;
  background:var(--grad-brand);color:#fff;
  display:inline-flex;align-items:center;justify-content:center;
  box-shadow:0 6px 16px rgba(14,124,107,.22);
}
.brand-mark svg{width:21px;height:21px}
.side-logo-text{display:flex;flex-direction:column;line-height:1.3;transition:opacity .18s var(--ease)}
.side-logo-text strong{font-size:17px;font-weight:800;letter-spacing:-0.01em}
.side-logo-text small{font-size:12.5px;color:var(--c-primary-600);font-weight:600;letter-spacing:.02em}
.side-divider{height:1px;background:var(--c-line);margin:2px 6px}
.side-nav{display:flex;flex-direction:column;gap:6px}
.nav-item{
  position:relative;display:flex;align-items:center;gap:12px;
  height:44px;padding:0 12px;border-radius:12px;
  color:var(--c-ink-2);font-size:15px;white-space:nowrap;
  transition:background .2s var(--ease),color .2s var(--ease);
}
.nav-item svg{width:20px;height:20px;flex:0 0 auto;fill:none;stroke:currentColor;stroke-width:1.75;stroke-linecap:round;stroke-linejoin:round}
.nav-item .nav-label{transition:opacity .18s var(--ease)}
.nav-item:hover{background:rgba(232,247,243,.7);color:var(--c-primary)}
.nav-item.is-active{background:var(--c-primary-50);color:var(--c-primary-600);font-weight:600}
.nav-item.is-active::before{
  content:"";position:absolute;left:0;top:9px;bottom:9px;width:3px;
  border-radius:0 3px 3px 0;background:var(--grad-brand);
}
.side-card{
  margin-top:auto;background:var(--c-primary-50);
  border:1px solid rgba(14,124,107,.14);border-radius:var(--r-mid);
  padding:16px;display:flex;flex-direction:column;gap:10px;
}
.side-card p{font-size:13.5px;line-height:1.7;color:var(--c-ink-2);transition:opacity .18s var(--ease)}
.side-card small{font-size:12.5px;color:var(--c-ink-2);transition:opacity .18s var(--ease)}
.side-foot{font-size:12px;color:#7C918D;line-height:1.6;padding:0 6px;transition:opacity .18s var(--ease)}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;white-space:nowrap;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease);
}
.btn svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.9;stroke-linecap:round;stroke-linejoin:round}
.btn-primary{
  background:var(--grad-cta);color:#fff;
  box-shadow:0 8px 20px rgba(255,122,69,.26);
}
.btn-primary:hover{filter:saturate(1.08) brightness(1.03);transform:translateY(-1px);box-shadow:0 12px 26px rgba(255,122,69,.32)}
.btn-primary:active{transform:translateY(0);box-shadow:inset 0 2px 6px rgba(150,58,20,.28)}
.btn-ghost{background:#fff;border:1px solid var(--c-line);color:var(--c-ink)}
.btn-ghost:hover{background:var(--c-primary-50);border-color:var(--c-primary-300);color:var(--c-primary);transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(0)}
.btn-outline-light{background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.62);color:#fff}
.btn-outline-light:hover{background:rgba(255,255,255,.22);transform:translateY(-1px)}
.btn-sm{min-height:40px;padding:0 16px;font-size:14px;border-radius:10px}
.text-link{display:inline-flex;align-items:center;gap:6px;color:var(--c-primary-600);font-size:14.5px;font-weight:600;margin-top:18px;transition:color .2s var(--ease)}
.text-link span{transition:transform .2s var(--ease)}
.text-link:hover{color:var(--c-primary)}
.text-link:hover span{transform:translateX(3px)}

/* ============ 主内容区 ============ */
.main-shell{margin-left:264px;min-height:100vh;display:flex;flex-direction:column}
.mobile-bar{display:none}

/* ============ 页头 Hero ============ */
.page-hero{
  position:relative;overflow:hidden;color:#fff;
  min-height:360px;display:flex;align-items:flex-end;
  padding:64px 0 46px;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(135deg,rgba(14,124,107,.90) 0%,rgba(18,160,138,.82) 52%,rgba(111,211,192,.74) 100%);
}
.page-hero .wrap{position:relative;z-index:1}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.86);margin-bottom:16px}
.crumb a:hover{color:#fff;text-decoration:underline;text-underline-offset:4px}
.crumb .sep{opacity:.6}
.crumb .current{color:#fff;font-weight:600}
.page-hero h1{font-size:36px;font-weight:800;letter-spacing:-0.02em;max-width:860px}
.hero-lead{margin-top:14px;font-size:16px;line-height:1.8;max-width:700px;color:rgba(255,255,255,.95)}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.hero-tag{
  display:inline-flex;align-items:center;gap:7px;
  padding:8px 14px;border-radius:999px;font-size:13.5px;
  background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.34);
  color:#fff;backdrop-filter:blur(6px);
}
.hero-tag i{width:6px;height:6px;border-radius:50%;background:var(--c-primary-300);display:inline-block}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}

/* ============ 板块通用 ============ */
.section{padding:88px 0}
.section-tight{padding:64px 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:760px;margin-bottom:36px}
.section-title{display:flex;align-items:center;gap:12px;font-size:30px;font-weight:800;letter-spacing:-0.02em}
.section-title .bar{width:4px;height:26px;border-radius:3px;background:var(--grad-brand);flex:0 0 auto}
.section-sub{margin-top:12px;color:var(--c-ink-2);font-size:15.5px}

/* 分区速览条 */
.index-strip{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  box-shadow:var(--elev1);padding:8px;
  display:grid;grid-template-columns:repeat(4,1fr);
}
.index-cell{position:relative;padding:22px 24px}
.index-cell + .index-cell{border-left:1px dashed var(--c-line)}
.index-cell::before{content:"";position:absolute;left:24px;top:14px;width:28px;height:3px;border-radius:3px;background:var(--grad-brand);opacity:.75}
.index-num{display:block;font-size:13px;font-weight:700;color:var(--c-primary-600);padding-top:10px}
.index-name{display:block;font-size:17px;font-weight:700;margin-top:2px}
.index-desc{display:block;font-size:13.5px;color:var(--c-ink-2);margin-top:6px;line-height:1.7}

/* ============ 锚点 + 图文交替 ============ */
.layout-split{display:grid;grid-template-columns:212px minmax(0,1fr);gap:44px;align-items:start}
.anchor-nav{position:sticky;top:32px;align-self:start;border-left:1px solid var(--c-line)}
.anchor-title{font-size:13px;font-weight:700;color:var(--c-ink-2);letter-spacing:.08em;padding-left:18px;margin-bottom:10px}
.anchor-link{
  position:relative;display:block;padding:10px 0 10px 18px;
  font-size:14px;color:var(--c-ink-2);line-height:1.5;
  transition:color .2s var(--ease);
}
.anchor-link::before{
  content:"";position:absolute;left:-5px;top:16px;width:9px;height:9px;border-radius:50%;
  background:var(--c-surface);border:2px solid var(--c-primary-300);
  transition:background .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease);
}
.anchor-link:hover{color:var(--c-primary)}
.anchor-link.is-active{color:var(--c-primary-600);font-weight:600}
.anchor-link.is-active::before{background:var(--c-primary);border-color:var(--c-primary);transform:scale(1.18)}

.block-list{display:flex;flex-direction:column;gap:28px}
.media-block{
  display:grid;grid-template-columns:5fr 7fr;gap:32px;align-items:center;
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:26px;box-shadow:var(--elev1);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
  scroll-margin-top:32px;
}
.media-block:nth-child(even){grid-template-columns:7fr 5fr}
.media-block:nth-child(even) .media-fig{order:2}
.media-block:hover{transform:translateY(-3px);box-shadow:var(--elev2);border-color:var(--c-primary-300)}
.media-fig{margin:0;border-radius:var(--r-mid);overflow:hidden;border:1px solid var(--c-line);background:var(--c-primary-50)}
.media-fig img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:inherit}
.num-badge{
  display:inline-flex;align-items:center;justify-content:center;
  min-width:36px;height:24px;padding:0 10px;border-radius:999px;
  background:var(--c-accent-soft);color:var(--c-accent-deep);
  font-size:13px;font-weight:700;font-variant-numeric:tabular-nums;letter-spacing:-0.02em;
}
.media-body h3{font-size:21px;margin-top:12px;letter-spacing:-0.01em}
.media-body > p{margin-top:10px;color:var(--c-ink-2);font-size:15px}
.point-list{list-style:none;padding:0;display:grid;gap:9px;margin-top:14px}
.point-list li{position:relative;padding-left:22px;font-size:15px;color:var(--c-ink-2);line-height:1.8}
.point-list li::before{
  content:"";position:absolute;left:7px;top:.74em;
  width:6px;height:6px;border-radius:50%;background:var(--c-primary-300);
}

/* ============ 覆盖范围释义列表 ============ */
.scope-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:26px 40px}
.scope-item{position:relative;padding-left:18px}
.scope-item::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:3px;
  border-radius:3px;background:var(--grad-brand);opacity:.5;
}
.scope-item dt{font-size:17px;font-weight:700}
.scope-item dd{margin-top:6px;font-size:15px;color:var(--c-ink-2);line-height:1.8}

/* ============ FAQ ============ */
.faq{max-width:840px;display:flex;flex-direction:column;gap:14px}
.faq-item{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-mid);
  overflow:hidden;transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.faq-item:hover{border-color:var(--c-primary-300)}
.faq-item.is-open{background:var(--c-bg);box-shadow:var(--elev1)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 24px;text-align:left;font-size:16.5px;font-weight:600;line-height:1.6;
  color:var(--c-ink);position:relative;
}
.faq-item.is-open .faq-q{color:var(--c-primary-600)}
.faq-item.is-open .faq-q::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;border-radius:0 3px 3px 0;background:var(--grad-brand);
}
.faq-icon{
  flex:0 0 auto;width:24px;height:24px;border-radius:50%;
  border:1px solid var(--c-primary-300);position:relative;
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--c-primary-600);border-radius:2px;
  transition:transform .22s var(--ease),opacity .22s var(--ease);
}
.faq-icon::before{left:6px;right:6px;top:11px;height:2px}
.faq-icon::after{top:6px;bottom:6px;left:11px;width:2px}
.faq-item.is-open .faq-icon::after{transform:scaleY(0);opacity:0}
.faq-a{display:grid;grid-template-rows:0fr;transition:grid-template-rows .22s var(--ease)}
.faq-item.is-open .faq-a{grid-template-rows:1fr}
.faq-a-inner{overflow:hidden}
.faq-a-inner p{padding:0 24px 22px;font-size:15px;color:var(--c-ink-2);line-height:1.85}

/* ============ 反馈表单 ============ */
.feedback-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.25fr);gap:44px;align-items:start}
.feedback-side h2{font-size:28px;letter-spacing:-0.02em}
.feedback-side > p{margin-top:14px;color:var(--c-ink-2);font-size:15.5px}
.feedback-notes{list-style:none;padding:0;display:grid;gap:12px;margin-top:22px}
.feedback-notes li{position:relative;padding-left:24px;font-size:15px;color:var(--c-ink-2)}
.feedback-notes li::before{
  content:"";position:absolute;left:4px;top:.72em;width:8px;height:8px;border-radius:50%;
  background:var(--c-primary-50);border:2px solid var(--c-primary-300);
}
.badge-soft{
  display:inline-flex;align-items:center;gap:8px;margin-top:24px;
  padding:9px 16px;border-radius:999px;font-size:13.5px;font-weight:600;
  background:var(--c-primary-50);color:var(--c-primary);border:1px solid rgba(14,124,107,.16);
}
.feedback-form{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:28px;box-shadow:var(--elev1);display:flex;flex-direction:column;gap:20px;
}
.form-row{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}
.field{display:flex;flex-direction:column;gap:8px;font-size:14px;font-weight:600;color:var(--c-ink-2)}
.req{display:inline-block;width:6px;height:6px;border-radius:50%;background:var(--c-accent);margin-left:6px;vertical-align:middle}
.field input,.field textarea{
  width:100%;border:1px solid var(--c-line);border-radius:var(--r-btn);
  padding:12px 14px;font-size:15px;color:var(--c-ink);background:#fff;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.field input{height:48px}
.field textarea{min-height:150px;resize:vertical;line-height:1.75}
.field input::placeholder,.field textarea::placeholder{color:#93A5A1}
.field input:focus,.field textarea:focus{
  outline:none;border-color:var(--c-primary);
  box-shadow:0 0 0 2px rgba(14,124,107,.18);
}
.chip-group{border:0;padding:0;margin:0;display:flex;flex-direction:column;gap:10px}
.chip-group legend{font-size:14px;font-weight:600;color:var(--c-ink-2);padding:0 0 4px}
.chips{display:flex;flex-wrap:wrap;gap:10px}
.chip{
  display:inline-flex;align-items:center;gap:8px;
  padding:10px 16px;border-radius:999px;font-size:14px;
  background:#fff;border:1px solid var(--c-line);color:var(--c-ink-2);
  transition:background .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease);
}
.chip input{position:absolute;opacity:0;pointer-events:none}
.chip:hover{border-color:var(--c-primary-300);color:var(--c-primary)}
.chip.is-checked{background:var(--c-primary-50);border-color:var(--c-primary);color:var(--c-primary-600);font-weight:600}
.form-hint{font-size:13px;color:var(--c-ink-2)}

/* ============ 页脚 ============ */
.site-footer{background:var(--c-deep);color:#C9DCD8;margin-top:auto;position:relative}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;background:var(--grad-brand);
}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;
  padding:64px 0 40px;
}
.footer-brand{display:flex;align-items:center;gap:11px;margin-bottom:16px}
.footer-brand .brand-mark{width:36px;height:36px}
.footer-name{font-size:17px;font-weight:800;color:#fff;letter-spacing:-0.01em}
.footer-desc{font-size:13.5px;line-height:1.85;color:#9FBAB5;max-width:340px}
.footer-title{font-size:15px;font-weight:700;color:#fff;margin-bottom:14px}
.footer-list{list-style:none;padding:0;display:grid;gap:10px}
.footer-list li{font-size:14px;line-height:1.7;color:#9FBAB5}
.footer-list a{transition:color .2s var(--ease)}
.footer-list a:hover{color:var(--c-primary-300)}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);
  padding:20px 0 28px;text-align:center;
}
.footer-bottom p{font-size:13px;color:#8AA5A0}

/* ============ 抽屉遮罩 ============ */
.drawer-mask{
  position:fixed;inset:0;background:rgba(8,33,31,.5);
  opacity:0;visibility:hidden;transition:opacity .24s var(--ease),visibility .24s var(--ease);
  z-index:65;
}
.drawer-mask.is-open{opacity:1;visibility:visible}

/* ============ 响应式 ============ */
@media (max-width:1439px){
  .sidebar{width:240px}
  .main-shell{margin-left:240px}
}
@media (max-width:1279px) and (min-width:1024px){
  .sidebar{width:84px;padding:24px 12px 18px;align-items:stretch}
  .side-logo{padding:0 10px}
  .side-logo-text,.nav-item .nav-label,.side-card p,.side-card small,.side-foot{opacity:0;visibility:hidden}
  .side-card{padding:10px;align-items:center}
  .side-cta-text{display:none}
  .side-cta{width:48px;padding:0;min-height:48px}
  .sidebar:hover,.sidebar:focus-within{width:264px;box-shadow:var(--elev2)}
  .sidebar:hover .side-logo-text,.sidebar:hover .nav-item .nav-label,
  .sidebar:hover .side-card p,.sidebar:hover .side-card small,.sidebar:hover .side-foot{opacity:1;visibility:visible}
  .sidebar:hover .side-card{align-items:stretch;padding:16px}
  .sidebar:hover .side-cta-text{display:inline}
  .sidebar:hover .side-cta{width:auto;padding:0 22px}
  .main-shell{margin-left:84px}
  .layout-split{grid-template-columns:190px minmax(0,1fr);gap:32px}
}
@media (max-width:1023px){
  .sidebar{
    width:78vw;max-width:320px;transform:translateX(-100%);
    box-shadow:0 0 0 rgba(0,0,0,0);
  }
  .sidebar.is-open{transform:translateX(0);box-shadow:0 18px 48px rgba(8,33,31,.28)}
  .main-shell{margin-left:0;padding-top:60px}
  .mobile-bar{
    display:flex;align-items:center;gap:12px;
    position:fixed;top:0;left:0;right:0;height:60px;z-index:64;
    background:#fff;border-bottom:1px solid var(--c-line);
    box-shadow:0 1px 2px rgba(16,32,30,.05),0 6px 18px rgba(16,32,30,.05);
    padding:0 14px;
  }
  .menu-btn{
    width:44px;height:44px;flex:0 0 auto;border-radius:12px;
    display:inline-flex;align-items:center;justify-content:center;
    color:var(--c-primary);transition:background .2s var(--ease);
  }
  .menu-btn:hover{background:var(--c-primary-50)}
  .menu-btn svg{width:22px;height:22px;fill:none;stroke:currentColor;stroke-width:1.9;stroke-linecap:round}
  .mobile-brand{
    display:flex;flex-direction:column;line-height:1.25;margin-right:auto;
    font-size:14.5px;font-weight:800;letter-spacing:-0.01em;
  }
  .mobile-brand small{font-size:11.5px;font-weight:500;color:var(--c-primary-600)}
  .page-hero{min-height:300px;padding:44px 0 36px}
  .page-hero h1{font-size:28px}
  .section{padding:64px 0}
  .layout-split{grid-template-columns:minmax(0,1fr);gap:26px}
  .anchor-nav{
    position:static;border-left:0;border-bottom:1px solid var(--c-line);
    display:flex;gap:8px;overflow-x:auto;padding-bottom:10px;
    scrollbar-width:none;-ms-overflow-style:none;
  }
  .anchor-nav::-webkit-scrollbar{display:none}
  .anchor-title{display:none}
  .anchor-link{
    flex:0 0 auto;padding:9px 16px;border-radius:999px;
    background:#fff;border:1px solid var(--c-line);font-size:13.5px;
  }
  .anchor-link::before{display:none}
  .anchor-link.is-active{background:var(--c-primary-50);border-color:var(--c-primary-300)}
  .media-block,.media-block:nth-child(even){grid-template-columns:minmax(0,1fr);gap:20px}
  .media-block:nth-child(even) .media-fig{order:0}
  .scope-grid{grid-template-columns:minmax(0,1fr);gap:20px}
  .feedback-grid{grid-template-columns:minmax(0,1fr);gap:28px}
  .footer-grid{grid-template-columns:repeat(2,1fr);gap:32px;padding:48px 0 32px}
}
@media (max-width:768px){
  .wrap{padding:0 20px}
  .index-strip{grid-template-columns:repeat(2,1fr)}
  .index-cell + .index-cell{border-left:0}
  .index-cell{border-top:1px dashed var(--c-line)}
  .index-cell:nth-child(1),.index-cell:nth-child(2){border-top:0}
  .index-cell:nth-child(even){border-left:1px dashed var(--c-line)}
  .section-title{font-size:24px}
  .page-hero h1{font-size:26px}
  .hero-lead{font-size:15px}
  .footer-grid{grid-template-columns:minmax(0,1fr);gap:28px}
  .footer-brand .brand-mark{width:34px;height:34px}
}
@media (max-width:520px){
  .section{padding:56px 0}
  .index-strip{grid-template-columns:minmax(0,1fr)}
  .index-cell:nth-child(even){border-left:0}
  .index-cell:nth-child(2){border-top:1px dashed var(--c-line)}
  .form-row{grid-template-columns:minmax(0,1fr)}
  .media-block{padding:18px}
  .feedback-form{padding:20px}
  .hero-actions .btn{width:100%}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{transition-duration:.01ms !important;animation-duration:.01ms !important}
}

/* roulang page: category3 */
:root{
    --c-primary:#0E7C6B;
    --c-primary-600:#12A08A;
    --c-primary-300:#6FD3C0;
    --c-primary-50:#E8F7F3;
    --c-accent:#FF7A45;
    --c-accent-soft:#FFE7DB;
    --c-ink:#10201E;
    --c-ink-2:#4A5C59;
    --c-line:#DCE7E4;
    --c-bg:#F4F8F6;
    --c-surface:#FFFFFF;
    --c-deep:#08211F;
    --grad-brand:linear-gradient(135deg,#0E7C6B 0%,#12A08A 52%,#6FD3C0 100%);
    --grad-cta:linear-gradient(135deg,#FF7A45,#FFA96B);
    --r-card:20px;
    --r-mid:16px;
    --r-btn:12px;
    --elev1:0 1px 2px rgba(16,32,30,.05), 0 8px 24px rgba(16,32,30,.06);
    --elev2:0 12px 32px rgba(14,124,107,.14);
    --side-w:264px;
    --ease:cubic-bezier(.2,.7,.3,1);
  }

  *,*::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:system-ui,-apple-system,"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Noto Sans SC","Microsoft YaHei",sans-serif;
    font-size:16px;
    line-height:1.85;
    -webkit-font-smoothing:antialiased;
  }
  body.no-scroll{overflow:hidden;}
  img{max-width:100%;display:block;}
  a{color:inherit;text-decoration:none;}
  button{font:inherit;color:inherit;background:none;border:none;cursor:pointer;}
  ul,ol{margin:0;padding:0;list-style:none;}
  h1,h2,h3,h4,p{margin:0;}
  :focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:6px;}

  .wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 40px;}

  /* ============ 侧栏 App Shell ============ */
  .sidebar{
    position:fixed;
    left:0;top:0;bottom:0;
    width:var(--side-w);
    background:var(--c-surface);
    border-right:1px solid var(--c-line);
    z-index:70;
    transition:width .24s var(--ease),transform .24s var(--ease);
  }
  .sidebar-inner{
    display:flex;
    flex-direction:column;
    gap:16px;
    height:100%;
    padding:20px 14px 18px;
    overflow-y:auto;
  }
  .brand{
    display:flex;
    align-items:center;
    gap:10px;
    padding:8px 8px 14px;
    border-radius:14px;
  }
  .brand-mark{
    flex:0 0 auto;
    width:42px;height:42px;
    display:grid;place-items:center;
    border-radius:13px;
    background:var(--grad-brand);
    color:#fff;
    box-shadow:0 6px 16px rgba(14,124,107,.22);
  }
  .brand-mark svg{width:22px;height:22px;}
  .brand-text{display:flex;flex-direction:column;line-height:1.25;min-width:0;}
  .brand-line1{font-size:17px;font-weight:800;letter-spacing:-.01em;color:var(--c-ink);white-space:nowrap;}
  .brand-line2{font-size:13px;color:var(--c-primary);font-weight:600;white-space:nowrap;}
  .brand-short{display:none;font-size:14px;font-weight:800;color:var(--c-ink);}

  .side-divider{height:1px;background:var(--c-line);margin:4px 8px;}

  .side-nav{display:flex;flex-direction:column;gap:4px;}
  .nav-item{
    position:relative;
    display:flex;
    align-items:center;
    gap:12px;
    height:44px;
    padding:0 12px;
    border-radius:12px;
    color:var(--c-ink-2);
    font-size:15px;
    white-space:nowrap;
    transition:background .2s var(--ease),color .2s var(--ease);
  }
  .nav-item svg{width:20px;height:20px;flex:0 0 auto;stroke-width:1.75;}
  .nav-item:hover{background:rgba(232,247,243,.6);color:var(--c-primary);}
  .nav-item.active{
    background:var(--c-primary-50);
    color:var(--c-primary-600);
    font-weight:600;
  }
  .nav-item.active::before{
    content:"";
    position:absolute;
    left:0;top:50%;
    transform:translateY(-50%);
    width:3px;height:22px;
    border-radius:0 3px 3px 0;
    background:var(--grad-brand);
  }
  .nav-label{overflow:hidden;text-overflow:ellipsis;}

  .side-card{
    margin-top:auto;
    background:var(--c-primary-50);
    border:1px solid rgba(111,211,192,.55);
    border-radius:var(--r-mid);
    padding:16px 14px;
  }
  .side-card-title{font-size:14px;font-weight:700;color:var(--c-ink);margin-bottom:6px;}
  .side-card-desc{font-size:12.5px;line-height:1.7;color:var(--c-ink-2);margin-bottom:12px;}
  .side-copy{font-size:11.5px;line-height:1.6;color:#8A9A97;padding:0 8px 2px;}

  /* ============ 顶部移动栏 ============ */
  .mobile-bar{
    display:none;
    position:sticky;
    top:0;z-index:80;
    height:60px;
    align-items:center;
    gap:12px;
    padding:0 16px;
    background:var(--c-surface);
    border-bottom:1px solid var(--c-line);
    box-shadow:0 2px 10px rgba(16,32,30,.05);
  }
  .menu-btn{
    width:44px;height:44px;
    display:grid;place-items:center;
    border-radius:12px;
    color:var(--c-ink);
    transition:background .2s var(--ease);
  }
  .menu-btn:hover{background:var(--c-primary-50);}
  .menu-btn svg{width:22px;height:22px;fill:none;stroke:currentColor;stroke-width:1.75;stroke-linecap:round;stroke-linejoin:round;}
  .mobile-brand{
    display:flex;
    flex-direction:column;
    line-height:1.2;
    font-size:15px;
    font-weight:800;
    color:var(--c-ink);
    margin-right:auto;
    min-width:0;
  }
  .mobile-brand small{font-size:11px;font-weight:500;color:var(--c-primary);}

  .drawer-mask{
    position:fixed;
    inset:0;
    background:rgba(8,33,31,.5);
    opacity:0;
    pointer-events:none;
    transition:opacity .24s var(--ease);
    z-index:65;
  }
  .drawer-mask.show{opacity:1;pointer-events:auto;}

  /* ============ 主内容 ============ */
  .main-wrap{
    margin-left:var(--side-w);
    min-height:100vh;
    display:flex;
    flex-direction:column;
    transition:margin-left .24s var(--ease);
  }
  main{flex:1;padding-bottom:8px;}

  /* ============ 页头 Hero ============ */
  .page-hero{
    position:relative;
    min-height:360px;
    display:flex;
    align-items:flex-end;
    overflow:hidden;
    background:var(--c-deep);
  }
  .page-hero-img{
    position:absolute;
    inset:0;
    width:100%;height:100%;
    object-fit:cover;
    background:var(--c-primary-50);
  }
  .page-hero-mask{
    position:absolute;
    inset:0;
    background:linear-gradient(135deg,rgba(8,33,31,.86) 0%,rgba(14,124,107,.82) 48%,rgba(18,160,138,.72) 100%);
  }
  .page-hero-inner{
    position:relative;
    z-index:2;
    padding-top:72px;
    padding-bottom:52px;
  }
  .breadcrumb{
    display:flex;
    flex-wrap:wrap;
    gap:8px;
    align-items:center;
    font-size:13px;
    color:rgba(255,255,255,.86);
    margin-bottom:18px;
  }
  .breadcrumb a{transition:color .2s var(--ease);}
  .breadcrumb a:hover{color:#fff;text-decoration:underline;}
  .breadcrumb .sep{opacity:.6;}
  .page-hero h1{
    font-size:44px;
    line-height:1.25;
    font-weight:800;
    letter-spacing:-.02em;
    color:#fff;
    max-width:760px;
  }
  .page-hero .hero-lead{
    margin-top:14px;
    font-size:17px;
    color:rgba(255,255,255,.92);
    max-width:640px;
    line-height:1.8;
  }
  .hero-badges{
    display:flex;
    flex-wrap:wrap;
    gap:10px;
    margin-top:24px;
  }
  .hero-badge{
    display:inline-flex;
    align-items:center;
    gap:8px;
    height:34px;
    padding:0 14px;
    border-radius:999px;
    font-size:13px;
    font-weight:600;
    color:#fff;
    background:rgba(255,255,255,.16);
    border:1px solid rgba(255,255,255,.3);
    backdrop-filter:blur(8px);
  }
  .hero-badge.warm{background:rgba(255,122,69,.9);border-color:rgba(255,169,107,.9);}

  /* ============ 板块 ============ */
  .sec{padding:88px 0 0;}
  .sec:last-of-type{padding-bottom:88px;}
  .sec-head{max-width:780px;margin-bottom:34px;}
  .sec-tag{
    display:inline-flex;
    align-items:center;
    height:28px;
    padding:0 12px;
    border-radius:999px;
    background:var(--c-primary-50);
    color:var(--c-primary-600);
    font-size:12.5px;
    font-weight:700;
    letter-spacing:.04em;
  }
  .sec-head h2{
    position:relative;
    padding-left:16px;
    margin:14px 0 10px;
    font-size:30px;
    line-height:1.25;
    font-weight:800;
    letter-spacing:-.01em;
  }
  .sec-head h2::before{
    content:"";
    position:absolute;
    left:0;top:9px;bottom:9px;
    width:4px;
    border-radius:2px;
    background:var(--grad-brand);
  }
  .sec-head p{font-size:15.5px;color:var(--c-ink-2);max-width:720px;}

  /* 胶囊标签条 */
  .chip-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:22px;}
  .chip{
    display:inline-flex;
    align-items:center;
    height:34px;
    padding:0 14px;
    border-radius:999px;
    background:var(--c-surface);
    border:1px solid var(--c-line);
    color:var(--c-ink-2);
    font-size:13.5px;
    transition:background .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease);
  }
  .chip.is-active{
    background:var(--c-primary-50);
    border-color:var(--c-primary-300);
    color:var(--c-primary-600);
    font-weight:700;
  }

  /* ============ 对比表 ============ */
  .cmp-table-wrap{
    background:var(--c-surface);
    border:1px solid var(--c-line);
    border-radius:var(--r-card);
    box-shadow:var(--elev1);
    overflow:hidden;
  }
  .cmp-table{
    width:100%;
    border-collapse:collapse;
    font-size:15px;
  }
  .cmp-table thead th{
    background:var(--c-primary-50);
    color:var(--c-ink);
    font-weight:800;
    font-size:15px;
    text-align:left;
    padding:18px 20px;
    letter-spacing:.02em;
  }
  .cmp-table thead th:first-child{width:20%;}
  .cmp-table tbody tr{height:56px;border-top:1px solid var(--c-line);}
  .cmp-table tbody th[scope="row"]{
    background:var(--c-primary-50);
    color:var(--c-ink);
    font-weight:700;
    font-size:15px;
    text-align:left;
    padding:16px 20px;
    width:20%;
    vertical-align:top;
  }
  .cmp-table tbody td{
    padding:16px 20px;
    color:var(--c-ink-2);
    line-height:1.75;
    vertical-align:top;
  }
  .badge-accent{
    display:inline-flex;
    align-items:center;
    height:22px;
    padding:0 9px;
    margin-left:6px;
    border-radius:999px;
    background:var(--c-accent-soft);
    color:#C6491E;
    font-size:12px;
    font-weight:700;
    white-space:nowrap;
    vertical-align:middle;
  }
  .cmp-note{
    margin-top:16px;
    font-size:13.5px;
    color:var(--c-ink-2);
  }

  /* ============ Bento 差异要点 ============ */
  .bento{
    display:grid;
    grid-template-columns:repeat(3,1fr);
    gap:22px;
  }
  .bento-card{
    position:relative;
    background:var(--c-surface);
    border:1px solid var(--c-line);
    border-radius:var(--r-card);
    padding:26px 24px;
    box-shadow:var(--elev1);
    transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
  }
  .bento-card:hover{
    transform:translateY(-3px);
    box-shadow:var(--elev2);
    border-color:var(--c-primary-300);
  }
  .bento-num{
    display:inline-grid;
    place-items:center;
    min-width:38px;height:26px;
    padding:0 10px;
    border-radius:999px;
    background:var(--c-accent-soft);
    color:#C6491E;
    font-size:12.5px;
    font-weight:800;
    letter-spacing:.06em;
    font-variant-numeric:tabular-nums;
    transition:background .22s var(--ease),color .22s var(--ease);
  }
  .bento-card:hover .bento-num{background:var(--grad-cta);color:#fff;}
  .bento-card h3{
    font-size:17px;
    font-weight:700;
    line-height:1.45;
    margin:14px 0 8px;
  }
  .bento-card p{
    font-size:14.5px;
    color:var(--c-ink-2);
    line-height:1.8;
  }

  /* ============ 结论条 ============ */
  .verdict{
    display:grid;
    grid-template-columns:1fr 1fr;
    gap:22px;
    align-items:stretch;
  }
  .verdict-plain{
    background:var(--c-bg);
    border:1px solid var(--c-line);
    border-radius:var(--r-card);
    padding:26px;
  }
  .verdict-plain img{
    width:100%;
    aspect-ratio:16/9;
    object-fit:cover;
    border-radius:var(--r-mid);
    border:1px solid var(--c-line);
    background:var(--c-primary-50);
    margin-bottom:18px;
  }
  .verdict-plain h3{font-size:19px;font-weight:700;margin-bottom:10px;}
  .verdict-plain p{font-size:14.5px;color:var(--c-ink-2);}
  .verdict-plain ul{margin-top:14px;display:flex;flex-direction:column;gap:10px;}
  .verdict-plain li{
    position:relative;
    padding-left:20px;
    font-size:14.5px;
    color:var(--c-ink-2);
  }
  .verdict-plain li::before{
    content:"";
    position:absolute;
    left:0;top:11px;
    width:8px;height:8px;
    border-radius:50%;
    background:var(--c-primary-300);
  }
  .verdict-strong{
    position:relative;
    background:var(--c-surface);
    border-radius:var(--r-card);
    padding:26px;
    box-shadow:var(--elev2);
    overflow:hidden;
  }
  .verdict-strong::before{
    content:"";
    position:absolute;
    inset:0;
    border-radius:var(--r-card);
    padding:2px;
    background:var(--grad-brand);
    -webkit-mask:linear-gradient(#fff 0 0) content-box,linear-gradient(#fff 0 0);
    -webkit-mask-composite:xor;
    mask:linear-gradient(#fff 0 0) content-box,linear-gradient(#fff 0 0);
    mask-composite:exclude;
    pointer-events:none;
  }
  .verdict-strong h3{font-size:19px;font-weight:800;margin-bottom:12px;}
  .verdict-strong ol{display:flex;flex-direction:column;gap:14px;}
  .verdict-strong li{
    display:flex;
    gap:12px;
    font-size:14.5px;
    color:var(--c-ink-2);
    line-height:1.75;
  }
  .verdict-strong .idx{
    flex:0 0 auto;
    width:26px;height:26px;
    display:grid;place-items:center;
    border-radius:9px;
    background:var(--c-primary-50);
    color:var(--c-primary-600);
    font-size:12.5px;
    font-weight:800;
    font-variant-numeric:tabular-nums;
  }

  /* ============ CTA ============ */
  .cta-band{
    display:flex;
    flex-wrap:wrap;
    align-items:center;
    justify-content:space-between;
    gap:26px;
    background:var(--c-primary-50);
    border:1px solid rgba(111,211,192,.6);
    border-radius:var(--r-card);
    padding:34px 32px;
  }
  .cta-band h2{
    font-size:24px;
    font-weight:800;
    line-height:1.35;
    margin-bottom:8px;
  }
  .cta-band p{
    font-size:14.5px;
    color:var(--c-ink-2);
    max-width:620px;
  }
  .cta-actions{display:flex;flex-wrap:wrap;gap:12px;}

  /* ============ 按钮 ============ */
  .btn{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    gap:8px;
    min-height:48px;
    padding:0 22px;
    border-radius:var(--r-btn);
    font-size:15px;
    font-weight:700;
    border:1px solid transparent;
    cursor:pointer;
    transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease),border-color .2s var(--ease),filter .2s var(--ease);
    white-space:nowrap;
  }
  .btn svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;transition:transform .2s var(--ease);}
  .btn-primary{
    background:var(--grad-cta);
    color:#fff;
    box-shadow:0 8px 20px rgba(255,122,69,.28);
  }
  .btn-primary:hover{filter:brightness(1.05);transform:translateY(-1px);box-shadow:0 12px 26px rgba(255,122,69,.34);}
  .btn-primary:active{transform:translateY(0);box-shadow:inset 0 2px 8px rgba(120,40,0,.2);}
  .btn-ghost{
    background:var(--c-surface);
    border-color:var(--c-line);
    color:var(--c-ink);
  }
  .btn-ghost:hover{background:var(--c-primary-50);border-color:var(--c-primary-300);}
  .btn-sm{min-height:40px;padding:0 16px;font-size:14px;border-radius:11px;}
  .btn-primary.btn-sm{box-shadow:0 6px 14px rgba(255,122,69,.24);}

  /* ============ 页脚 ============ */
  .site-footer{
    position:relative;
    background:var(--c-deep);
    color:#C9DCD8;
    padding:64px 0 26px;
    margin-top:0;
  }
  .site-footer::before{
    content:"";
    position:absolute;
    top:0;left:0;right:0;
    height:3px;
    background:var(--grad-brand);
  }
  .footer-grid{
    display:grid;
    grid-template-columns:1.5fr 1fr 1fr 1fr;
    gap:36px;
  }
  .footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
  .footer-brand .brand-mark{
    width:38px;height:38px;
    border-radius:11px;
    background:var(--grad-brand);
    display:grid;place-items:center;
    color:#fff;
  }
  .footer-brand .brand-mark svg{width:20px;height:20px;}
  .footer-name{font-size:16px;font-weight:800;color:#fff;letter-spacing:-.01em;}
  .footer-desc{font-size:13.5px;line-height:1.85;color:#9DB7B3;max-width:360px;}
  .footer-title{font-size:14px;font-weight:700;color:#fff;margin-bottom:14px;}
  .footer-list{display:flex;flex-direction:column;gap:10px;}
  .footer-list a,.footer-list span{font-size:13.5px;color:#C9DCD8;transition:color .2s var(--ease);}
  .footer-list a:hover{color:var(--c-primary-300);}
  .footer-bottom{
    margin-top:44px;
    padding-top:20px;
    border-top:1px solid rgba(201,220,216,.16);
    text-align:center;
    font-size:13px;
    color:#8FA9A5;
  }

  /* ============ 断点 ============ */
  @media (min-width:1280px) and (max-width:1439px){
    :root{--side-w:240px;}
  }

  @media (min-width:1024px) and (max-width:1279px){
    :root{--side-w:84px;}
    .sidebar-inner{overflow:visible;padding:18px 12px;}
    .brand{flex-direction:column;gap:8px;padding:6px 4px 14px;}
    .brand-text{display:none;}
    .brand-short{display:block;}
    .nav-item{justify-content:center;padding:0;}
    .nav-label{
      position:absolute;
      left:calc(100% + 14px);
      top:50%;
      transform:translateY(-50%);
      background:var(--c-deep);
      color:#fff;
      font-size:13px;
      font-weight:600;
      padding:8px 12px;
      border-radius:10px;
      white-space:nowrap;
      opacity:0;
      pointer-events:none;
      transition:opacity .2s var(--ease);
      z-index:90;
    }
    .nav-item:hover .nav-label,
    .nav-item:focus-visible .nav-label{opacity:1;}
    .side-card{padding:12px 8px;text-align:center;}
    .side-card-title,.side-card-desc{display:none;}
    .side-card .btn{padding:0 10px;font-size:13px;width:100%;}
    .side-copy{display:none;}
  }

  @media (max-width:1023px){
    .mobile-bar{display:flex;}
    .sidebar{
      width:78vw;
      max-width:320px;
      transform:translateX(-100%);
      box-shadow:0 12px 40px rgba(8,33,31,.3);
    }
    .sidebar.open{transform:translateX(0);}
    .main-wrap{margin-left:0;}
    .page-hero{min-height:320px;}
    .page-hero h1{font-size:32px;}
    .sec{padding-top:64px;}
    .sec:last-of-type{padding-bottom:64px;}
    .sec-head h2{font-size:24px;}
    .bento{grid-template-columns:repeat(2,1fr);}
    .verdict{grid-template-columns:1fr;}
    .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  }

  @media (max-width:767px){
    body{font-size:15.5px;}
    .wrap{padding:0 20px;}
    .page-hero{min-height:300px;}
    .page-hero-inner{padding-top:52px;padding-bottom:38px;}
    .page-hero h1{font-size:30px;}
    .page-hero .hero-lead{font-size:15.5px;}
    .sec{padding-top:56px;}
    .sec:last-of-type{padding-bottom:56px;}
    .sec-head{margin-bottom:26px;}
    .sec-head h2{font-size:23px;}
    .bento{grid-template-columns:1fr;gap:16px;}
    .bento-card{padding:22px 20px;}
    .cta-band{padding:26px 22px;}
    .cta-band h2{font-size:20px;}
    .cta-actions{width:100%;}
    .cta-actions .btn{width:100%;}
    .chip-row{flex-wrap:nowrap;overflow-x:auto;padding-bottom:6px;-webkit-overflow-scrolling:touch;}
    .chip-row::-webkit-scrollbar{display:none;}
    .chip{flex:0 0 auto;}
    .cmp-table,
    .cmp-table tbody,
    .cmp-table tr,
    .cmp-table th,
    .cmp-table td{display:block;width:100%;}
    .cmp-table thead{display:none;}
    .cmp-table tbody tr{
      height:auto;
      background:var(--c-surface);
      border:1px solid var(--c-line);
      border-radius:var(--r-mid);
      padding:14px 16px;
      margin:0 12px 14px;
      box-shadow:var(--elev1);
    }
    .cmp-table tbody tr:first-child{margin-top:12px;}
    .cmp-table tbody th[scope="row"]{
      width:auto;
      background:transparent;
      padding:0 0 10px;
      font-size:16px;
      border-bottom:1px dashed var(--c-line);
      margin-bottom:10px;
    }
    .cmp-table tbody td{
      padding:8px 0;
      font-size:14.5px;
    }
    .cmp-table tbody td::before{
      content:attr(data-label);
      display:inline-block;
      min-width:64px;
      color:var(--c-ink);
      font-weight:700;
      margin-right:8px;
    }
    .footer-grid{grid-template-columns:1fr;gap:26px;}
    .footer-desc{max-width:100%;}
  }

  @media (max-width:519px){
    .page-hero h1{font-size:26px;}
    .sec-head h2{font-size:21px;}
    .verdict-strong,.verdict-plain{padding:22px 18px;}
  }

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

/* roulang page: category4 */
:root{
  --c-primary:#0E7C6B;
  --c-primary-600:#12A08A;
  --c-primary-300:#6FD3C0;
  --c-primary-50:#E8F7F3;
  --c-accent:#FF7A45;
  --c-accent-soft:#FFE7DB;
  --c-ink:#10201E;
  --c-ink-2:#4A5C59;
  --c-line:#DCE7E4;
  --c-bg:#F4F8F6;
  --c-surface:#FFFFFF;
  --c-deep:#08211F;
  --grad-brand:linear-gradient(135deg,#0E7C6B 0%,#12A08A 52%,#6FD3C0 100%);
  --grad-cta:linear-gradient(135deg,#FF7A45,#FFA96B);
  --r-card:20px;
  --r-mid:16px;
  --r-btn:12px;
  --elev1:0 1px 2px rgba(16,32,30,.05), 0 8px 24px rgba(16,32,30,.06);
  --elev2:0 12px 32px rgba(14,124,107,.14);
  --ease:cubic-bezier(.2,.7,.3,1);
  --sidebar-w:264px;
}
*,*::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:system-ui,-apple-system,"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Noto Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
button,input,textarea{font:inherit;color:inherit}
button{cursor:pointer;border:0;background:none}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:6px}
h1,h2,h3,h4{margin:0;line-height:1.25;font-weight:700;letter-spacing:-0.01em}
p{margin:0}
ul{margin:0;padding:0;list-style:none}

.wrap{max-width:1200px;margin:0 auto;padding:0 40px}

/* ---------- 侧边导航 ---------- */
.sidebar{
  position:fixed;
  top:0;left:0;bottom:0;
  width:var(--sidebar-w);
  background:var(--c-surface);
  border-right:1px solid var(--c-line);
  overflow-y:auto;
  overflow-x:hidden;
  z-index:60;
  transition:width .2s var(--ease),transform .24s var(--ease);
}
.sidebar-inner{display:flex;flex-direction:column;min-height:100%;padding:22px 16px 18px}
.brand{display:flex;align-items:center;gap:10px;padding:6px 8px 20px;border-bottom:1px solid var(--c-line)}
.brand-mark{
  flex:0 0 auto;width:38px;height:38px;border-radius:12px;
  background:var(--grad-brand);color:#fff;display:grid;place-items:center;
  box-shadow:0 6px 16px rgba(14,124,107,.28);
}
.brand-mark svg{width:21px;height:21px}
.brand-text{display:flex;flex-direction:column;min-width:0}
.brand-line1{font-size:16px;font-weight:800;letter-spacing:-0.02em;color:var(--c-ink);white-space:nowrap}
.brand-line2{font-size:12.5px;font-weight:600;color:var(--c-primary);letter-spacing:.06em}
.brand-short{display:none;font-size:15px;font-weight:800;color:var(--c-ink)}
.nav{display:flex;flex-direction:column;gap:4px;padding:16px 0}
.nav-link{
  position:relative;display:flex;align-items:center;gap:12px;
  height:44px;padding:0 12px;border-radius:var(--r-btn);
  color:var(--c-ink-2);font-size:15px;font-weight:500;
  transition:background .2s var(--ease),color .2s var(--ease);
}
.nav-link svg{width:20px;height:20px;flex:0 0 auto;stroke-width:1.75}
.nav-link::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%) scaleY(0);
  width:3px;height:20px;border-radius:3px;background:var(--grad-brand);
  transition:transform .2s var(--ease);
}
.nav-link:hover{background:rgba(232,247,243,.6);color:var(--c-primary)}
.nav-link.is-active{background:var(--c-primary-50);color:var(--c-primary-600);font-weight:600}
.nav-link.is-active::before{transform:translateY(-50%) scaleY(1)}
.side-cta{
  margin-top:auto;padding:16px;border-radius:var(--r-mid);
  background:var(--c-primary-50);border:1px solid var(--c-line);
}
.side-cta-text{font-size:13.5px;line-height:1.7;color:var(--c-ink-2);margin-bottom:12px}
.side-note{font-size:12.5px;color:var(--c-ink-2);margin-top:10px}
.side-foot{margin-top:18px;padding-top:14px;border-top:1px solid var(--c-line);font-size:12px;color:var(--c-ink-2);line-height:1.7}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;letter-spacing:.01em;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease);
}
.btn svg{width:18px;height:18px;stroke-width:1.9}
.btn-primary{background:var(--grad-cta);color:#fff;box-shadow:0 8px 20px rgba(255,122,69,.3)}
.btn-primary:hover{transform:translateY(-1px);box-shadow:0 12px 26px rgba(255,122,69,.38);filter:saturate(1.06)}
.btn-primary:active{transform:translateY(0);box-shadow:inset 0 2px 6px rgba(150,60,20,.28)}
.btn-ghost{background:#fff;color:var(--c-ink);border:1px solid var(--c-line)}
.btn-ghost:hover{background:var(--c-primary-50);border-color:var(--c-primary-300);color:var(--c-primary)}
.btn-sm{min-height:40px;padding:0 16px;font-size:14px;border-radius:var(--r-btn)}
.btn-block{width:100%}
.text-link{display:inline-flex;align-items:center;gap:6px;color:var(--c-primary);font-size:14px;font-weight:600}
.text-link svg{width:16px;height:16px;transition:transform .2s var(--ease);stroke-width:2}
.text-link:hover svg{transform:translateX(2px)}

/* ---------- 主区域 ---------- */
.main{margin-left:var(--sidebar-w);min-height:100vh;transition:margin-left .2s var(--ease)}
.mobile-bar{
  display:none;align-items:center;gap:12px;position:sticky;top:0;z-index:50;
  height:60px;padding:0 16px;background:#fff;border-bottom:1px solid var(--c-line);
  box-shadow:0 1px 2px rgba(16,32,30,.04);
}
.menu-btn{width:44px;height:44px;display:grid;place-items:center;border-radius:var(--r-btn);border:1px solid var(--c-line);background:#fff}
.menu-btn svg{width:22px;height:22px;stroke:var(--c-ink);stroke-width:1.75;fill:none;stroke-linecap:round}
.mobile-brand{display:flex;flex-direction:column;line-height:1.25;font-size:14.5px;font-weight:800;color:var(--c-ink);min-width:0}
.mobile-brand small{font-size:11.5px;font-weight:500;color:var(--c-ink-2)}
.scrim{position:fixed;inset:0;background:rgba(8,33,31,.5);opacity:0;pointer-events:none;transition:opacity .24s var(--ease);z-index:55}
.scrim.show{opacity:1;pointer-events:auto}

.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;padding:26px 0 0;font-size:13px;color:var(--c-ink-2)}
.breadcrumb a{color:var(--c-ink-2)}
.breadcrumb a:hover{color:var(--c-primary)}
.breadcrumb span.sep{color:var(--c-primary-300)}
.breadcrumb .now{color:var(--c-ink);font-weight:600}

/* ---------- 页头 ---------- */
.page-hero{
  position:relative;overflow:hidden;border-radius:var(--r-card);
  min-height:340px;display:flex;align-items:center;
  padding:48px;margin-top:20px;color:#fff;
  box-shadow:var(--elev1);
}
.page-hero-bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;
}
.page-hero-bg::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(135deg,rgba(14,124,107,.9) 0%,rgba(18,160,138,.82) 52%,rgba(111,211,192,.72) 100%);
}
.page-hero-body{position:relative;z-index:2;max-width:660px}
.hero-kicker{
  display:inline-flex;align-items:center;gap:8px;
  padding:5px 14px;border-radius:999px;
  background:rgba(255,255,255,.18);border:1px solid rgba(255,255,255,.36);
  font-size:13px;font-weight:600;letter-spacing:.04em;margin-bottom:18px;
}
.hero-kicker svg{width:15px;height:15px;stroke-width:1.9}
.page-hero h1{font-size:44px;letter-spacing:-0.03em;font-weight:800}
.hero-sub{margin-top:16px;font-size:16.5px;line-height:1.8;color:rgba(255,255,255,.92);max-width:560px}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}
.hero-tag{
  padding:5px 13px;border-radius:999px;font-size:13px;
  background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.3);color:#fff;
}

/* ---------- 筛选条 ---------- */
.filter-bar{
  margin-top:28px;padding:20px 22px;border-radius:var(--r-card);
  background:var(--c-surface);border:1px solid var(--c-line);box-shadow:var(--elev1);
  display:flex;flex-wrap:wrap;align-items:center;gap:14px;
}
.filter-field{
  position:relative;flex:1 1 320px;min-width:0;
}
.filter-field svg{
  position:absolute;left:15px;top:50%;transform:translateY(-50%);
  width:18px;height:18px;stroke:var(--c-ink-2);stroke-width:1.8;fill:none;pointer-events:none;
}
.filter-field input{
  width:100%;height:48px;padding:0 16px 0 44px;
  border:1px solid var(--c-line);border-radius:var(--r-btn);
  background:#fff;font-size:15px;outline:none;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.filter-field input::placeholder{color:#93A6A2}
.filter-field input:focus{border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(14,124,107,.12)}
.chips{display:flex;flex-wrap:wrap;gap:10px}
.chip{
  min-height:38px;padding:0 15px;border-radius:999px;
  border:1px solid var(--c-line);background:#fff;color:var(--c-ink-2);
  font-size:13.5px;font-weight:500;
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.chip:hover{background:var(--c-primary-50);color:var(--c-primary);border-color:var(--c-primary-300)}
.chip.is-on{background:var(--c-primary-50);color:var(--c-primary-600);border-color:var(--c-primary-300);font-weight:600}

/* ---------- 问答两栏 ---------- */
.faq-layout{
  display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:32px;
  align-items:start;margin-top:36px;
}
.group-head{
  display:flex;align-items:center;gap:10px;
  margin:30px 0 14px;font-size:18px;font-weight:700;color:var(--c-ink);
}
.group-head::before{content:"";width:4px;height:18px;border-radius:2px;background:var(--grad-brand)}
.group-head:first-child{margin-top:0}
.group-count{
  margin-left:auto;font-size:12.5px;font-weight:600;color:var(--c-primary);
  background:var(--c-primary-50);border-radius:999px;padding:2px 10px;
}

.faq-item{
  border:1px solid var(--c-line);
  border-left:3px solid transparent;
  border-radius:14px;background:#fff;margin-bottom:12px;
  transition:background .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.faq-item:hover{border-color:var(--c-primary-300);box-shadow:var(--elev1)}
.faq-item[open]{background:var(--c-bg);border-left-color:var(--c-primary)}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:16px 20px;font-size:16.5px;font-weight:600;color:var(--c-ink);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-icon{
  position:relative;flex:0 0 auto;width:24px;height:24px;border-radius:999px;
  border:1px solid var(--c-line);background:#fff;
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--c-primary);
  transform:translate(-50%,-50%);
  transition:transform .22s var(--ease),opacity .22s var(--ease);
}
.faq-icon::before{width:11px;height:1.6px}
.faq-icon::after{width:1.6px;height:11px}
.faq-item[open] .faq-icon::after{transform:translate(-50%,-50%) scaleY(0);opacity:0}
.faq-panel{display:grid;grid-template-rows:0fr;transition:grid-template-rows .22s var(--ease)}
.faq-item[open] .faq-panel{grid-template-rows:1fr}
.faq-panel>div{overflow:hidden}
.faq-a{padding:0 20px 18px;font-size:15px;color:var(--c-ink-2);line-height:1.85}
.faq-a strong{color:var(--c-ink);font-weight:600}

/* ---------- 右侧 ---------- */
.side-stack{position:sticky;top:24px;display:flex;flex-direction:column;gap:20px}
.check-card{
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-card);padding:24px;box-shadow:var(--elev1);
  border-top:3px solid transparent;
  background-image:linear-gradient(#fff,#fff),var(--grad-brand);
  background-origin:border-box;
  background-clip:padding-box,border-box;
}
.check-title{font-size:17px;font-weight:700;margin-bottom:8px}
.check-desc{font-size:13.5px;color:var(--c-ink-2);line-height:1.75;margin-bottom:16px}
.check-list{display:flex;flex-direction:column;gap:12px}
.check-list label{
  display:flex;align-items:flex-start;gap:10px;
  font-size:14px;color:var(--c-ink);line-height:1.65;cursor:pointer;
}
.check-list input{
  appearance:none;-webkit-appearance:none;
  flex:0 0 auto;width:19px;height:19px;margin-top:3px;
  border:1.5px solid var(--c-line);border-radius:6px;background:#fff;
  transition:background .18s var(--ease),border-color .18s var(--ease);
  position:relative;
}
.check-list input:checked{background:var(--c-primary);border-color:var(--c-primary)}
.check-list input:checked::after{
  content:"";position:absolute;left:5.5px;top:1.5px;width:5px;height:10px;
  border:2px solid #fff;border-top:0;border-left:0;transform:rotate(45deg);
}
.check-foot{
  margin-top:16px;padding-top:14px;border-top:1px dashed var(--c-line);
  font-size:12.5px;color:var(--c-ink-2);line-height:1.7;
}
.help-card{
  background:var(--c-deep);color:#C9DCD8;border-radius:var(--r-card);
  padding:24px;position:relative;overflow:hidden;
}
.help-card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:3px;background:var(--grad-brand);
}
.help-card h3{font-size:16.5px;color:#fff;margin-bottom:10px}
.help-card p{font-size:13.5px;line-height:1.8;margin-bottom:18px}

/* ---------- 结尾 CTA ---------- */
.cta-band{
  margin:72px 0 0;border-radius:var(--r-card);overflow:hidden;
  background:var(--c-primary-50);border:1px solid var(--c-line);
  display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);
}
.cta-copy{padding:40px}
.cta-copy h2{font-size:26px;letter-spacing:-0.02em;margin-bottom:14px}
.cta-copy p{font-size:15px;color:var(--c-ink-2);line-height:1.85;max-width:440px}
.cta-points{margin-top:20px;display:flex;flex-direction:column;gap:10px}
.cta-points li{display:flex;gap:10px;font-size:14px;color:var(--c-ink-2)}
.cta-points svg{width:18px;height:18px;flex:0 0 auto;margin-top:4px;stroke:var(--c-primary);stroke-width:2;fill:none}
.cta-form{padding:40px;background:#fff;border-left:1px solid var(--c-line)}
.field{margin-bottom:16px}
.field label{display:block;font-size:13.5px;font-weight:600;margin-bottom:7px}
.field .req{display:inline-block;width:6px;height:6px;border-radius:999px;background:var(--c-accent);margin-left:6px;vertical-align:middle}
.field input,.field textarea{
  width:100%;border:1px solid var(--c-line);border-radius:var(--r-btn);
  background:#fff;padding:12px 14px;font-size:14.5px;outline:none;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.field input{height:48px;padding:0 14px}
.field textarea{min-height:110px;resize:vertical;line-height:1.7}
.field input:focus,.field textarea:focus{border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(14,124,107,.12)}
.form-hint{margin-top:12px;font-size:12.5px;color:var(--c-ink-2);line-height:1.7}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:72px;background:var(--c-deep);color:#C9DCD8;
  position:relative;
}
.site-footer::before{content:"";position:absolute;top:0;left:0;right:0;height:1px;background:var(--grad-brand)}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px;
  padding:56px 0 40px;
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.brand-mark svg{width:21px;height:21px}
.footer-name{font-size:16.5px;font-weight:800;color:#fff;letter-spacing:-0.01em}
.footer-desc{font-size:13.5px;line-height:1.85;color:#9FBAB5;max-width:340px}
.footer-title{font-size:14px;font-weight:700;color:#fff;margin-bottom:14px}
.footer-list{display:flex;flex-direction:column;gap:10px}
.footer-list a,.footer-list span{font-size:13.5px;color:#9FBAB5;transition:color .2s var(--ease)}
.footer-list a:hover{color:var(--c-primary-300)}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);
  padding:20px 0 28px;text-align:center;
  font-size:12.5px;color:#7F9A95;
}

/* ---------- 断点 ---------- */
@media (min-width:1280px) and (max-width:1439px){
  :root{--sidebar-w:240px}
}
@media (min-width:1024px) and (max-width:1279px){
  :root{--sidebar-w:84px}
  .sidebar-inner{padding:18px 10px 16px;align-items:center}
  .brand{justify-content:center;padding:4px 0 16px;width:100%}
  .brand-text{display:none}
  .brand-short{display:none}
  .nav{width:100%;align-items:center}
  .nav-link{justify-content:center;padding:0;width:56px}
  .nav-link .nav-text{
    position:absolute;left:64px;top:50%;transform:translateY(-50%);
    background:var(--c-deep);color:#fff;padding:6px 12px;border-radius:8px;
    font-size:13px;white-space:nowrap;opacity:0;pointer-events:none;z-index:80;
    transition:opacity .18s var(--ease);
  }
  .nav-link:hover .nav-text,.nav-link:focus-visible .nav-text{opacity:1}
  .side-cta{width:100%;padding:12px;display:grid;place-items:center}
  .side-cta-text,.side-note{display:none}
  .side-cta .btn{padding:0 12px}
  .side-cta .btn span{display:none}
  .side-foot{font-size:11px;text-align:center;line-height:1.5}
}
@media (max-width:1023px){
  :root{--sidebar-w:0px}
  .mobile-bar{display:flex}
  .sidebar{
    width:min(78vw,320px);
    transform:translateX(-100%);
    box-shadow:0 20px 60px rgba(8,33,31,.28);
  }
  .sidebar.open{transform:translateX(0)}
  .main{margin-left:0}
  .page-hero{min-height:320px;padding:32px;margin-top:16px}
  .page-hero h1{font-size:32px}
  .faq-layout{grid-template-columns:1fr;gap:24px}
  .side-stack{position:static}
  .cta-band{grid-template-columns:1fr}
  .cta-copy,.cta-form{padding:28px}
  .cta-form{border-left:0;border-top:1px solid var(--c-line)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;padding:40px 0 28px}
}
@media (max-width:767px){
  .wrap{padding:0 20px}
  .page-hero{min-height:300px;padding:26px 20px}
  .page-hero h1{font-size:30px}
  .hero-sub{font-size:15px}
  .filter-bar{padding:16px}
  .filter-field{flex:1 1 100%}
  .filter-bar .btn{width:100%}
  .faq-item summary{font-size:15.5px;padding:14px 16px}
  .faq-a{padding:0 16px 16px;font-size:14.5px}
  .footer-grid{grid-template-columns:1fr;gap:24px}
  .footer-bottom{text-align:left}
}
@media (max-width:520px){
  .hero-tags{gap:8px}
  .hero-tag{font-size:12px;padding:4px 11px}
  .cta-copy h2{font-size:22px}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important}
  html{scroll-behavior:auto}
}