/* roulang page: index */
:root{
  --primary:#0E7A6D;
  --primary-dark:#095E54;
  --primary-soft:#D8F0EA;
  --accent:#E07A3F;
  --accent-soft:#FBE7D8;
  --bg:#F6F7F4;
  --surface:#FFFFFF;
  --surface-2:#EDF3EF;
  --ink:#17211E;
  --muted:#5B6B65;
  --line:#DCE5DF;
  --footer-bg:#12302C;
  --success:#2E7D5B;
  --warning:#B7791F;
  --shadow-sm:0 2px 8px rgba(23,33,30,.06);
  --shadow:0 12px 32px rgba(14,122,109,.10);
  --shadow-lg:0 24px 64px rgba(23,33,30,.14);
  --radius-lg:20px;
  --radius-md:16px;
  --radius-sm:12px;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:17px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--primary);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--primary-dark);}
h1,h2,h3,h4{font-weight:800;letter-spacing:-0.02em;line-height:1.25;color:var(--ink);margin:0;}
p{margin:0 0 1.1em;}
ul{margin:0;padding:0;list-style:none;}
button,input,textarea,select{font-family:inherit;font-size:inherit;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;}
.container{max-width:1280px;padding-left:24px;padding-right:24px;margin:0 auto;}
@media (min-width:1400px){.container{max-width:1320px;}}

/* ---------- 按钮 ---------- */
.btn-brand,.btn-outline-brand,.btn-accent{
  display:inline-flex;align-items:center;justify-content:center;gap:.5rem;
  border-radius:999px;padding:.875rem 1.6rem;font-weight:600;font-size:1rem;
  border:1px solid transparent;cursor:pointer;transition:all .25s ease;line-height:1.2;
}
.btn-brand{background:var(--primary);color:#fff;box-shadow:var(--shadow-sm);}
.btn-brand:hover{background:var(--primary-dark);color:#fff;transform:translateY(-2px);box-shadow:var(--shadow);}
.btn-brand:active{transform:translateY(0);}
.btn-outline-brand{background:transparent;color:var(--primary);border-color:var(--primary);}
.btn-outline-brand:hover{background:var(--primary-soft);color:var(--primary-dark);transform:translateY(-2px);}
.btn-accent{background:var(--accent);color:#fff;box-shadow:0 8px 20px rgba(224,122,63,.28);}
.btn-accent:hover{background:#c9682f;color:#fff;transform:translateY(-2px);box-shadow:0 14px 30px rgba(224,122,63,.34);}
.btn-sm-pill{padding:.6rem 1.15rem;font-size:.94rem;}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(255,255,255,.96);
  backdrop-filter:saturate(150%) blur(10px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease,background .25s ease;
}
.site-header.is-scrolled{box-shadow:0 10px 30px rgba(23,33,30,.08);background:rgba(255,255,255,.99);}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:1.25rem;min-height:74px;}
.brand{display:flex;align-items:center;gap:.7rem;color:var(--ink);}
.brand:hover{color:var(--ink);}
.brand-mark{
  width:42px;height:42px;flex:0 0 42px;border-radius:13px;
  background:linear-gradient(135deg,var(--primary),#16a08d);
  color:#fff;display:flex;align-items:center;justify-content:center;
  font-weight:800;font-size:1.15rem;box-shadow:var(--shadow-sm);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-text strong{font-size:1.02rem;font-weight:800;letter-spacing:-0.01em;}
.brand-text small{font-size:.74rem;color:var(--muted);font-weight:500;}
.nav-pills-wrap{display:flex;align-items:center;gap:.25rem;}
.nav-pill{
  display:inline-block;padding:.55rem 1rem;border-radius:999px;
  font-size:.95rem;font-weight:600;color:#33443E;transition:all .2s ease;white-space:nowrap;
}
.nav-pill:hover{background:var(--primary-soft);color:var(--primary-dark);}
.nav-pill.is-active{background:var(--primary-soft);color:var(--primary);}
.header-actions{display:flex;align-items:center;gap:.6rem;}
.menu-toggle{
  width:44px;height:44px;border-radius:13px;border:1px solid var(--line);
  background:var(--surface);display:flex;align-items:center;justify-content:center;
}
.menu-toggle span{display:block;width:20px;height:2px;background:var(--ink);border-radius:2px;position:relative;}
.menu-toggle span::before,.menu-toggle span::after{content:"";position:absolute;left:0;width:20px;height:2px;background:var(--ink);border-radius:2px;}
.menu-toggle span::before{top:-6px;}
.menu-toggle span::after{top:6px;}
.drawer{background:var(--surface);width:min(86vw,360px);}
.drawer-head{padding:1.25rem 1.4rem;border-bottom:1px solid var(--line);}
.drawer-body{padding:1rem 1.1rem;display:flex;flex-direction:column;gap:.3rem;}
.drawer-link{
  display:block;padding:.9rem 1rem;border-radius:14px;font-size:1.08rem;font-weight:600;
  color:var(--ink);
}
.drawer-link:hover{background:var(--primary-soft);color:var(--primary-dark);}
.drawer-link.is-active{background:var(--primary-soft);color:var(--primary);}
.drawer-foot{padding:1rem 1.4rem 1.6rem;border-top:1px solid var(--line);margin-top:auto;}
.drawer-foot .btn-accent{width:100%;}

/* ---------- 通用区块 ---------- */
section{padding:88px 0;}
.section-tight{padding:64px 0;}
.eyebrow{
  display:inline-flex;align-items:center;gap:.45rem;
  background:var(--primary-soft);color:var(--primary-dark);
  font-size:.82rem;font-weight:700;letter-spacing:.04em;
  padding:.4rem .9rem;border-radius:999px;margin-bottom:1rem;
}
.eyebrow.is-accent{background:var(--accent-soft);color:#A9581F;}
.section-head{max-width:760px;margin-bottom:2.6rem;}
.section-head h2{font-size:clamp(1.75rem,3vw,2.5rem);margin-bottom:.85rem;}
.section-head p{color:var(--muted);font-size:1.02rem;margin:0;}
.badge-soft{
  display:inline-block;background:var(--surface-2);color:var(--primary-dark);
  font-size:.8rem;font-weight:700;padding:.3rem .75rem;border-radius:999px;
}
.badge-accent{background:var(--accent-soft);color:#A9581F;}

/* ---------- Hero ---------- */
.hero{
  position:relative;padding:76px 0 72px;
  background:linear-gradient(180deg,#FFFFFF 0%,var(--bg) 100%);
  overflow:hidden;
}
.hero::before{
  content:"";position:absolute;right:-160px;top:-180px;width:520px;height:520px;border-radius:50%;
  background:radial-gradient(circle,rgba(14,122,109,.14),rgba(14,122,109,0) 68%);
}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;position:relative;}
.hero h1{font-size:clamp(2.1rem,4.4vw,3.4rem);margin-bottom:1.1rem;}
.hero h1 .hl{color:var(--primary);}
.hero-sub{font-size:1.08rem;color:#3E524B;max-width:560px;margin-bottom:1.7rem;line-height:1.8;}
.hero-cta{display:flex;flex-wrap:wrap;gap:.85rem;margin-bottom:1.9rem;}
.metric-row{display:flex;flex-wrap:wrap;gap:.7rem;}
.metric-pill{
  display:flex;flex-direction:column;gap:.1rem;
  background:var(--surface);border:1px solid var(--line);border-radius:14px;
  padding:.7rem 1.05rem;box-shadow:var(--shadow-sm);min-width:132px;
}
.metric-pill b{font-size:1.05rem;font-variant-numeric:tabular-nums;color:var(--primary-dark);letter-spacing:-.01em;}
.metric-pill span{font-size:.78rem;color:var(--muted);}
.hero-visual{position:relative;border-radius:24px;overflow:hidden;box-shadow:var(--shadow-lg);}
.hero-visual img{width:100%;height:460px;object-fit:cover;}
.hero-visual::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(18,48,44,.05) 0%,rgba(18,48,44,.68) 100%);
}
.hero-card{
  position:absolute;left:20px;right:20px;bottom:20px;z-index:2;
  background:rgba(255,255,255,.94);border-radius:18px;padding:1.15rem 1.25rem;
  box-shadow:var(--shadow);backdrop-filter:blur(6px);
}
.hero-card h3{font-size:1.02rem;margin-bottom:.4rem;}
.hero-card p{font-size:.88rem;color:var(--muted);margin:0;}
.hero-card .route{display:flex;gap:.5rem;flex-wrap:wrap;margin-top:.75rem;}
.route-node{
  font-size:.76rem;font-weight:700;color:var(--primary-dark);
  background:var(--primary-soft);border-radius:999px;padding:.28rem .7rem;
}
.route-node.is-accent{background:var(--accent-soft);color:#A9581F;}

/* ---------- 价值主张条 ---------- */
.value-strip{padding:0 0 12px;margin-top:-8px;}
.strip-grid{
  display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:18px;
}
.strip-card{
  background:var(--surface);border:1px solid var(--line);border-radius:18px;
  padding:1.4rem 1.5rem;box-shadow:var(--shadow-sm);transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.strip-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:var(--primary-soft);}
.strip-card.is-wide{background:linear-gradient(135deg,var(--primary) 0%,#12897a 100%);color:#fff;border-color:transparent;}
.strip-card.is-wide h3{color:#fff;font-size:1.2rem;margin-bottom:.55rem;}
.strip-card.is-wide p{color:rgba(255,255,255,.86);font-size:.92rem;margin:0;}
.strip-card h4{font-size:1rem;margin-bottom:.4rem;}
.strip-card p{font-size:.9rem;color:var(--muted);margin:0;}
.strip-num{font-size:1.6rem;font-weight:800;font-variant-numeric:tabular-nums;color:var(--primary);letter-spacing:-.02em;}

/* ---------- 功能分组 mosaic ---------- */
.mosaic{display:grid;grid-template-columns:1.25fr 1fr 1fr;grid-auto-rows:minmax(210px,auto);gap:22px;}
.mosaic-item{
  position:relative;border-radius:20px;overflow:hidden;border:1px solid var(--line);
  background:var(--surface);box-shadow:var(--shadow-sm);display:flex;flex-direction:column;
  transition:transform .3s ease,box-shadow .3s ease,border-color .3s ease;
}
.mosaic-item:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:var(--primary-soft);}
.mosaic-item img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease;}
.mosaic-item:hover img{transform:scale(1.02);}
.mosaic-item.is-hero{grid-row:span 2;}
.mosaic-media{position:relative;height:190px;overflow:hidden;}
.mosaic-item.is-hero .mosaic-media{height:100%;min-height:320px;flex:1;}
.mosaic-overlay{
  position:absolute;inset:0;background:linear-gradient(180deg,rgba(18,48,44,.02) 20%,rgba(18,48,44,.72) 100%);
}
.mosaic-body{padding:1.25rem 1.35rem;position:relative;}
.mosaic-item.is-hero .mosaic-body{
  position:absolute;left:0;right:0;bottom:0;color:#fff;
}
.mosaic-item.is-hero .mosaic-body h3{color:#fff;font-size:1.35rem;}
.mosaic-item.is-hero .mosaic-body p{color:rgba(255,255,255,.86);}
.mosaic-body h3{font-size:1.08rem;margin-bottom:.45rem;}
.mosaic-body p{font-size:.9rem;color:var(--muted);margin:0 0 .8rem;}
.mosaic-link{font-size:.88rem;font-weight:700;display:inline-flex;align-items:center;gap:.35rem;}
.mosaic-item.is-hero .mosaic-link{color:#fff;}
.mosaic-link .arrow{transition:transform .25s ease;display:inline-block;}
.mosaic-item:hover .mosaic-link .arrow{transform:translateX(4px);}

/* ---------- 使用场景 ---------- */
.scene-wrap{
  display:grid;grid-template-columns:1fr 1fr;gap:52px;align-items:center;
}
.scene-tags{display:flex;flex-wrap:wrap;gap:.55rem;margin-bottom:1.6rem;}
.scene-tag{
  background:var(--surface);border:1px solid var(--line);border-radius:999px;
  padding:.42rem .95rem;font-size:.85rem;font-weight:600;color:#33443E;
}
.scene-tag.is-on{background:var(--primary);color:#fff;border-color:var(--primary);}
.timeline{position:relative;padding-left:34px;}
.timeline::before{content:"";position:absolute;left:11px;top:8px;bottom:8px;width:2px;background:var(--line);}
.timeline-item{position:relative;margin-bottom:1.6rem;}
.timeline-item:last-child{margin-bottom:0;}
.timeline-item::before{
  content:"";position:absolute;left:-29px;top:6px;width:14px;height:14px;border-radius:50%;
  background:var(--surface);border:3px solid var(--primary);
}
.timeline-item h3{font-size:1.02rem;margin-bottom:.35rem;}
.timeline-item p{font-size:.9rem;color:var(--muted);margin:0;}
.scene-visual{border-radius:22px;overflow:hidden;box-shadow:var(--shadow-lg);position:relative;}
.scene-visual img{width:100%;height:420px;object-fit:cover;}
.scene-visual::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(18,48,44,0) 45%,rgba(18,48,44,.55) 100%);}
.scene-note{
  position:absolute;bottom:18px;left:18px;right:18px;z-index:2;color:#fff;
  font-size:.92rem;font-weight:600;
}

/* ---------- 成功案例 ---------- */
.case-grid{display:grid;grid-template-columns:1.35fr 1fr 1fr;gap:22px;}
.case-card{
  background:var(--surface);border:1px solid var(--line);border-radius:20px;
  padding:1.7rem 1.6rem;box-shadow:var(--shadow-sm);display:flex;flex-direction:column;gap:1rem;
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.case-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:var(--primary-soft);}
.case-card.is-main{background:linear-gradient(160deg,#12302C 0%,#164038 100%);color:#fff;border-color:transparent;}
.case-card.is-main blockquote{color:rgba(255,255,255,.9);}
.case-card blockquote{margin:0;font-size:1rem;line-height:1.8;color:#2C3A35;}
.case-metric{display:flex;gap:1.6rem;flex-wrap:wrap;}
.case-metric div b{display:block;font-size:1.5rem;font-variant-numeric:tabular-nums;letter-spacing:-.02em;color:var(--primary);}
.case-card.is-main .case-metric div b{color:#7FE0CD;}
.case-metric div span{font-size:.8rem;color:var(--muted);}
.case-card.is-main .case-metric div span{color:rgba(255,255,255,.66);}
.case-foot{display:flex;align-items:center;gap:.7rem;margin-top:auto;padding-top:.4rem;}
.case-avatar{
  width:38px;height:38px;border-radius:12px;background:var(--primary-soft);color:var(--primary-dark);
  display:flex;align-items:center;justify-content:center;font-weight:800;font-size:.9rem;flex:0 0 38px;
}
.case-card.is-main .case-avatar{background:rgba(127,224,205,.18);color:#7FE0CD;}
.case-foot small{display:block;color:var(--muted);font-size:.78rem;}
.case-card.is-main .case-foot small{color:rgba(255,255,255,.62);}
.case-foot strong{font-size:.9rem;font-weight:700;}
.case-card.is-main .case-foot strong{color:#fff;}

/* ---------- 价格 ---------- */
.pricing-wrap{display:grid;grid-template-columns:1fr 1.15fr;gap:26px;align-items:start;}
.plan-main{
  background:linear-gradient(150deg,var(--primary) 0%,#0F8C7C 100%);
  color:#fff;border-radius:22px;padding:2.1rem 1.9rem;box-shadow:var(--shadow);
}
.plan-main h3{color:#fff;font-size:1.35rem;margin-bottom:.3rem;}
.plan-main .plan-sub{color:rgba(255,255,255,.84);font-size:.92rem;margin-bottom:1.4rem;}
.plan-price{font-size:2.6rem;font-weight:800;font-variant-numeric:tabular-nums;letter-spacing:-.03em;line-height:1;}
.plan-price small{font-size:.95rem;font-weight:600;opacity:.82;}
.plan-list{margin:1.5rem 0 1.7rem;display:grid;gap:.6rem;}
.plan-list li{display:flex;gap:.6rem;font-size:.94rem;color:rgba(255,255,255,.92);}
.plan-list li::before{content:"✓";font-weight:800;color:#9DEDDD;}
.plan-main .btn-accent{width:100%;}
.plan-side{
  background:var(--surface);border:1px solid var(--line);border-radius:22px;
  padding:1.6rem 1.5rem;box-shadow:var(--shadow-sm);
}
.plan-side h4{font-size:1.05rem;margin-bottom:1rem;}
.compare-table{width:100%;border-collapse:separate;border-spacing:0;font-size:.92rem;}
.compare-table th,.compare-table td{padding:.85rem .9rem;border-bottom:1px solid var(--line);text-align:left;vertical-align:top;}
.compare-table thead th{background:var(--surface-2);font-size:.85rem;color:var(--primary-dark);font-weight:800;}
.compare-table thead th:first-child{border-top-left-radius:12px;}
.compare-table thead th:last-child{border-top-right-radius:12px;}
.compare-table td:first-child{font-weight:700;color:#2C3A35;}
.compare-table tr:last-child td{border-bottom:none;}
.price-num{font-variant-numeric:tabular-nums;font-weight:700;color:var(--primary-dark);}
.table-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch;}

/* ---------- 最新信息 ---------- */
.news-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.news-card{
  background:var(--surface);border:1px solid var(--line);border-radius:18px;
  padding:1.35rem 1.35rem 1.2rem;display:flex;flex-direction:column;gap:.6rem;
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:var(--primary-soft);}
.news-card h3{font-size:1.02rem;line-height:1.5;}
.news-card h3 a{color:var(--ink);}
.news-card h3 a:hover{color:var(--primary);}
.news-card p{font-size:.88rem;color:var(--muted);margin:0;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;}
.news-meta{display:flex;align-items:center;gap:.6rem;font-size:.78rem;color:var(--muted);margin-top:auto;padding-top:.6rem;border-top:1px solid var(--line);}
.news-more{display:inline-flex;align-items:center;gap:.35rem;font-size:.86rem;font-weight:700;}
.empty-state{
  grid-column:1/-1;background:var(--surface);border:1px dashed var(--line);border-radius:18px;
  padding:2.6rem 1.5rem;text-align:center;
}
.empty-state .empty-icon{
  width:52px;height:52px;border-radius:16px;background:var(--primary-soft);color:var(--primary);
  display:flex;align-items:center;justify-content:center;margin:0 auto 1rem;font-size:1.3rem;font-weight:800;
}
.empty-state p{color:var(--muted);margin-bottom:1.2rem;}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:920px;margin:0 auto;}
.accordion-item{
  background:var(--surface);border:1px solid var(--line);border-radius:14px !important;
  margin-bottom:.85rem;overflow:hidden;
}
.accordion-button{
  font-size:1.05rem;font-weight:700;color:var(--ink);background:var(--surface);
  padding:1.15rem 1.35rem;box-shadow:none !important;border-left:4px solid transparent;
}
.accordion-button:not(.collapsed){
  background:var(--surface-2);color:var(--primary-dark);border-left-color:var(--accent);
}
.accordion-button::after{filter:hue-rotate(120deg) saturate(1.4);}
.accordion-body{font-size:.95rem;line-height:1.8;color:#3E524B;padding:1.1rem 1.35rem 1.3rem;}

/* ---------- 底部 CTA + 表单 ---------- */
.cta-band{
  background:linear-gradient(140deg,#12302C 0%,#0E5249 100%);
  color:#fff;border-radius:26px;padding:3rem 2.6rem;
  display:grid;grid-template-columns:1.05fr .95fr;gap:44px;align-items:center;
  box-shadow:var(--shadow-lg);position:relative;overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;right:-120px;bottom:-160px;width:380px;height:380px;border-radius:50%;
  background:radial-gradient(circle,rgba(127,224,205,.22),rgba(127,224,205,0) 70%);
}
.cta-band h2{color:#fff;font-size:clamp(1.6rem,2.6vw,2.2rem);margin-bottom:.9rem;}
.cta-band p{color:rgba(255,255,255,.82);font-size:1rem;margin-bottom:1.4rem;}
.cta-points{display:grid;gap:.55rem;margin-bottom:1.6rem;}
.cta-points li{display:flex;gap:.6rem;font-size:.94rem;color:rgba(255,255,255,.9);}
.cta-points li::before{content:"→";color:#7FE0CD;font-weight:800;}
.form-card{background:rgba(255,255,255,.98);border-radius:20px;padding:1.7rem 1.6rem;box-shadow:var(--shadow);position:relative;z-index:2;}
.form-card h3{font-size:1.1rem;margin-bottom:1.1rem;}
.form-label{font-size:.86rem;font-weight:700;color:#2C3A35;margin-bottom:.4rem;display:block;}
.form-control{
  height:48px;border-radius:12px;border:1px solid var(--line);font-size:.95rem;
  padding:.6rem .9rem;background:var(--surface);color:var(--ink);width:100%;
  transition:border-color .2s ease,box-shadow .2s ease;
}
textarea.form-control{height:auto;min-height:88px;resize:vertical;line-height:1.7;}
.form-control:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 4px rgba(14,122,109,.12);}
.form-control.is-error{border-color:#D96A5A;box-shadow:0 0 0 4px rgba(217,106,90,.12);}
.form-hint{font-size:.78rem;color:var(--muted);margin-top:.4rem;}
.form-status{font-size:.85rem;margin-top:.7rem;font-weight:600;}
.form-status.ok{color:var(--success);}
.form-status.err{color:#D96A5A;}
.form-card .btn-accent{width:100%;margin-top:1rem;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--footer-bg);color:rgba(255,255,255,.78);padding:68px 0 0;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.15fr;gap:38px;padding-bottom:44px;}
.site-footer h4{color:#fff;font-size:1rem;margin-bottom:1.05rem;font-weight:700;}
.site-footer p{font-size:.9rem;color:rgba(255,255,255,.7);line-height:1.8;}
.footer-brand{display:flex;align-items:center;gap:.7rem;margin-bottom:1rem;}
.footer-brand .brand-mark{background:rgba(127,224,205,.16);color:#7FE0CD;box-shadow:none;}
.footer-brand strong{color:#fff;font-size:1rem;}
.footer-links{display:grid;gap:.6rem;}
.footer-links a{font-size:.9rem;color:rgba(255,255,255,.76);}
.footer-links a:hover{color:#7FE0CD;}
.footer-contact li{font-size:.9rem;color:rgba(255,255,255,.76);margin-bottom:.6rem;display:flex;gap:.5rem;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);padding:1.2rem 0;
  display:flex;flex-wrap:wrap;gap:.8rem;justify-content:space-between;align-items:center;
  font-size:.82rem;color:rgba(255,255,255,.58);
}
.footer-bottom a{color:rgba(255,255,255,.68);}
.footer-bottom a:hover{color:#7FE0CD;}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .news-grid{grid-template-columns:repeat(3,1fr);}
  .mosaic{grid-template-columns:1fr 1fr;grid-auto-rows:auto;}
  .mosaic-item.is-hero{grid-column:span 2;grid-row:auto;}
  .mosaic-item.is-hero .mosaic-media{min-height:280px;}
}
@media (max-width:991.98px){
  section{padding:60px 0;}
  .hero{padding:52px 0 56px;}
  .hero-grid{grid-template-columns:1fr;gap:34px;}
  .hero-visual img{height:340px;}
  .strip-grid{grid-template-columns:1fr 1fr;}
  .strip-card.is-wide{grid-column:span 2;}
  .scene-wrap{grid-template-columns:1fr;gap:34px;}
  .scene-visual img{height:320px;}
  .case-grid{grid-template-columns:1fr 1fr;}
  .case-card.is-main{grid-column:span 2;}
  .pricing-wrap{grid-template-columns:1fr;}
  .news-grid{grid-template-columns:repeat(2,1fr);}
  .cta-band{grid-template-columns:1fr;padding:2.2rem 1.6rem;border-radius:22px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px;}
}
@media (max-width:767.98px){
  body{font-size:16px;}
  .brand-text small{display:none;}
  .hero-visual img{height:280px;}
  .hero-card{left:14px;right:14px;bottom:14px;padding:1rem;}
  .mosaic{grid-template-columns:1fr;}
  .mosaic-item.is-hero{grid-column:auto;}
  .case-grid{grid-template-columns:1fr;}
  .case-card.is-main{grid-column:auto;}
  .strip-grid{grid-template-columns:1fr;}
  .strip-card.is-wide{grid-column:auto;}
  .footer-grid{grid-template-columns:1fr;}
  .compare-table{min-width:560px;}
  .cta-band{padding:1.8rem 1.2rem;}
  .form-card{padding:1.4rem 1.2rem;}
}
@media (max-width:575.98px){
  .container{padding-left:18px;padding-right:18px;}
  section{padding:52px 0;}
  .hero-cta .btn-brand,.hero-cta .btn-outline-brand{width:100%;}
  .news-grid{grid-template-columns:1fr;}
  .metric-pill{flex:1 1 45%;}
  .plan-price{font-size:2.1rem;}
}

/* roulang page: article */
:root{
  --primary:#0E7A6D;
  --primary-dark:#095E54;
  --primary-soft:#D8F0EA;
  --accent:#E07A3F;
  --accent-soft:#FBE7D8;
  --bg:#F6F7F4;
  --surface:#FFFFFF;
  --surface-2:#EDF3EF;
  --ink:#17211E;
  --muted:#5B6B65;
  --line:#DCE5DF;
  --footer-bg:#12302C;
  --success:#2E7D5B;
  --warning:#B7791F;
  --shadow-sm:0 2px 8px rgba(23,33,30,.06);
  --shadow:0 12px 32px rgba(14,122,109,.10);
  --shadow-lg:0 24px 64px rgba(23,33,30,.14);
  --r-sm:12px;
  --r:18px;
  --r-lg:24px;
  --w:1280px;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  background:var(--bg);
  color:var(--ink);
  font-size:17px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block}
a{color:var(--primary);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--primary-dark)}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.02em;line-height:1.28;color:var(--ink)}
p{margin:0}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px}

.container{width:100%;max-width:var(--w);margin:0 auto;padding:0 20px}

/* ===== 按钮 ===== */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;font-weight:600;border-radius:999px;transition:all .25s ease;border:1px solid transparent;white-space:nowrap}
.btn.btn-brand{background:var(--primary);border-color:var(--primary);color:#fff;padding:.8125rem 1.5rem;font-size:15.5px;line-height:1.2}
.btn.btn-brand:hover{background:var(--primary-dark);border-color:var(--primary-dark);color:#fff;transform:translateY(-2px);box-shadow:var(--shadow)}
.btn.btn-brand:active{transform:translateY(0);box-shadow:var(--shadow-sm)}
.btn.btn-outline-brand{background:transparent;border-color:var(--primary);color:var(--primary);padding:.8125rem 1.5rem;font-size:15.5px;line-height:1.2}
.btn.btn-outline-brand:hover{background:var(--primary-soft);color:var(--primary-dark);transform:translateY(-2px)}
.btn.btn-accent{background:var(--accent);border-color:var(--accent);color:#fff;padding:.8125rem 1.5rem;font-size:15.5px;line-height:1.2}
.btn.btn-accent:hover{background:#c96a33;border-color:#c96a33;color:#fff;transform:translateY(-2px);box-shadow:var(--shadow)}
.btn.btn-sm{padding:.5625rem 1.125rem;font-size:14.5px}

/* ===== 顶部导航 ===== */
.site-header{
  position:sticky;top:0;z-index:1040;
  background:rgba(255,255,255,.96);
  backdrop-filter:saturate(160%) blur(10px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease,background .25s ease;
}
.site-header.is-scrolled{box-shadow:var(--shadow-sm);background:rgba(255,255,255,.99)}
.header-inner{display:flex;align-items:center;gap:24px;height:74px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:38px;height:38px;border-radius:12px;display:grid;place-items:center;
  background:linear-gradient(140deg,var(--primary),#12a08e);
  color:#fff;font-weight:800;font-size:18px;letter-spacing:0;
  box-shadow:0 6px 16px rgba(14,122,109,.28);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text strong{font-size:16px;font-weight:800;color:var(--ink);letter-spacing:-.02em}
.brand-text em{font-style:normal;font-size:11.5px;color:var(--muted);letter-spacing:.06em}
.brand:hover .brand-text strong{color:var(--primary-dark)}

.nav-pills-wrap{display:flex;align-items:center;gap:6px;margin:0 auto}
.nav-pill{
  display:inline-flex;align-items:center;height:40px;padding:0 16px;border-radius:999px;
  color:var(--muted);font-size:15px;font-weight:500;transition:all .2s ease;
}
.nav-pill:hover{background:var(--primary-soft);color:var(--primary-dark)}
.nav-pill.is-active{background:var(--primary-soft);color:var(--primary-dark);font-weight:600}

.header-actions{display:flex;align-items:center;gap:12px;flex-shrink:0}

.nav-toggle{
  width:44px;height:44px;border-radius:12px;border:1px solid var(--line);background:#fff;
  display:grid;place-items:center;gap:4px;padding:0;cursor:pointer;margin-left:auto;
}
.nav-toggle span{display:block;width:20px;height:2px;border-radius:2px;background:var(--ink)}
.nav-toggle:hover{border-color:var(--primary);background:var(--primary-soft)}

.mobile-drawer{
  position:fixed;inset:0;z-index:1060;background:rgba(18,48,44,.45);
  opacity:0;visibility:hidden;transition:opacity .28s ease,visibility .28s ease;
}
.mobile-drawer.is-open{opacity:1;visibility:visible}
.drawer-panel{
  position:absolute;top:0;right:0;height:100%;width:min(86vw,360px);
  background:#fff;display:flex;flex-direction:column;
  transform:translateX(102%);transition:transform .3s cubic-bezier(.22,.7,.28,1);
  box-shadow:var(--shadow-lg);
}
.mobile-drawer.is-open .drawer-panel{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding:18px 20px;border-bottom:1px solid var(--line)}
.drawer-head strong{font-size:15px}
.drawer-close{width:38px;height:38px;border-radius:10px;border:1px solid var(--line);background:#fff;font-size:18px;color:var(--muted);cursor:pointer}
.drawer-close:hover{background:var(--surface-2);color:var(--ink)}
.drawer-nav{display:flex;flex-direction:column;gap:6px;padding:20px;flex:1;overflow-y:auto}
.drawer-nav a{
  display:block;padding:14px 16px;border-radius:14px;font-size:17px;font-weight:600;color:var(--ink);
  border:1px solid transparent;
}
.drawer-nav a:hover{background:var(--primary-soft);color:var(--primary-dark)}
.drawer-nav a.is-active{background:var(--primary-soft);color:var(--primary-dark);border-color:#bfe4da}
.drawer-cta{padding:18px 20px;border-top:1px solid var(--line);background:var(--surface-2)}
.drawer-cta .btn{width:100%}

/* ===== 文章头 ===== */
.article-hero{
  position:relative;
  padding:52px 0 56px;
  background-image:linear-gradient(100deg,rgba(9,94,84,.92) 0%,rgba(14,122,109,.80) 46%,rgba(18,48,44,.72) 100%),url('/assets/images/backpic/back-2.png');
  background-size:cover;
  background-position:center;
  color:#fff;
  overflow:hidden;
}
.article-hero::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:70px;
  background:linear-gradient(180deg,rgba(246,247,244,0) 0%,rgba(246,247,244,.85) 100%);
}
.article-hero .container{position:relative;z-index:2}
.breadcrumb-line{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:rgba(255,255,255,.82);margin-bottom:20px}
.breadcrumb-line a{color:rgba(255,255,255,.9);border-bottom:1px solid rgba(255,255,255,.35);padding-bottom:1px}
.breadcrumb-line a:hover{color:#fff;border-color:#fff}
.breadcrumb-line .sep{opacity:.55}
.breadcrumb-line .current{color:#FFE2CE;font-weight:600}

.article-title{
  font-size:clamp(1.75rem,3.6vw,2.9rem);
  font-weight:800;color:#fff;max-width:920px;line-height:1.26;
  letter-spacing:-.02em;
}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px 14px;margin-top:22px;font-size:14px;color:rgba(255,255,255,.88)}
.meta-item{display:inline-flex;align-items:center;gap:7px}
.meta-item svg{width:16px;height:16px;stroke:currentColor;fill:none;stroke-width:1.9;stroke-linecap:round;stroke-linejoin:round;opacity:.9}
.meta-chip{
  display:inline-flex;align-items:center;padding:.3rem .8rem;border-radius:999px;
  background:rgba(255,255,255,.18);border:1px solid rgba(255,255,255,.32);
  font-size:13px;font-weight:600;color:#fff;
}

/* ===== 正文布局 ===== */
.article-main{padding:56px 0 76px}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr);gap:40px}
.article-body{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  box-shadow:var(--shadow-sm);
  padding:36px clamp(20px,4vw,48px) 44px;
  max-width:840px;
  width:100%;
}

.prose{font-size:17px;line-height:1.85;color:#22302C}
.prose>p{margin:0 0 1.1em}
.prose h2{
  font-size:clamp(1.35rem,2.4vw,1.7rem);
  margin:2.5em 0 1em;padding-left:14px;
  border-left:4px solid var(--primary);
  line-height:1.4;
}
.prose h3{font-size:1.25rem;margin:1.9em 0 .7em;color:var(--primary-dark)}
.prose h4{font-size:1.0625rem;margin:1.5em 0 .6em}
.prose a{color:var(--primary);border-bottom:1px solid rgba(14,122,109,.35)}
.prose a:hover{color:var(--primary-dark);border-color:var(--primary-dark)}
.prose strong{font-weight:700;color:var(--ink)}
.prose ul,.prose ol{margin:0 0 1.25em;padding-left:1.35em}
.prose ul li{list-style:none;position:relative;padding-left:1.1em;margin-bottom:.55em}
.prose ul li::before{
  content:"";position:absolute;left:0;top:.72em;width:7px;height:7px;border-radius:50%;
  background:var(--primary-soft);border:1.5px solid var(--primary);
}
.prose ol{counter-reset:li}
.prose ol li{list-style:none;position:relative;padding-left:1.8em;margin-bottom:.55em;counter-increment:li}
.prose ol li::before{
  content:counter(li);position:absolute;left:0;top:.2em;width:1.35em;height:1.35em;
  display:grid;place-items:center;font-size:.74rem;font-weight:700;
  background:var(--primary-soft);color:var(--primary-dark);border-radius:8px;
}
.prose blockquote{
  margin:1.6em 0;padding:16px 20px;border-left:4px solid var(--accent);
  background:var(--accent-soft);border-radius:0 var(--r-sm) var(--r-sm) 0;
  color:#5c3a22;font-size:.98rem;
}
.prose blockquote p:last-child{margin-bottom:0}
.prose img{border-radius:16px;margin:1.6em 0;box-shadow:var(--shadow-sm);width:100%;height:auto}
.prose figure{margin:1.6em 0}
.prose figcaption{font-size:13px;color:var(--muted);text-align:center;margin-top:.7em}
.prose table{
  width:100%;border-collapse:collapse;margin:1.6em 0;font-size:15px;
  border:1px solid var(--line);border-radius:var(--r-sm);overflow:hidden;
}
.prose thead th{background:var(--surface-2);font-weight:700;color:var(--ink)}
.prose th,.prose td{padding:12px 14px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
.prose tbody tr:last-child td{border-bottom:none}
.prose tbody tr:hover{background:#f6faf8}
.prose code{background:var(--surface-2);border-radius:6px;padding:.12em .42em;font-size:.9em;color:var(--primary-dark)}
.prose hr{border:none;border-top:1px solid var(--line);margin:2.2em 0}

.article-empty{
  text-align:center;padding:48px 16px;
}
.article-empty .icon{
  width:64px;height:64px;margin:0 auto 20px;border-radius:20px;
  background:var(--primary-soft);display:grid;place-items:center;
}
.article-empty .icon svg{width:30px;height:30px;stroke:var(--primary);fill:none;stroke-width:1.9;stroke-linecap:round;stroke-linejoin:round}
.article-empty h2{font-size:1.4rem;margin-bottom:12px}
.article-empty p{color:var(--muted);margin-bottom:24px;font-size:15.5px}

/* ===== 侧栏 ===== */
.article-side{display:flex;flex-direction:column;gap:20px}
.side-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r);
  padding:22px;box-shadow:var(--shadow-sm);
}
.side-card h3{font-size:1.0625rem;margin-bottom:10px}
.side-card p{font-size:14.5px;color:var(--muted);line-height:1.7}
.side-card .btn{width:100%;margin-top:16px}
.side-list{display:flex;flex-direction:column;gap:2px;margin-top:12px}
.side-list a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:11px 12px;border-radius:12px;font-size:14.5px;color:var(--ink);font-weight:500;
  border:1px solid transparent;
}
.side-list a:hover{background:var(--primary-soft);color:var(--primary-dark);border-color:#c7e8df}
.side-list a svg{width:16px;height:16px;stroke:currentColor;fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;flex-shrink:0;transition:transform .25s ease}
.side-list a:hover svg{transform:translateX(3px)}
.side-stat{display:flex;align-items:center;gap:12px;padding:12px 0;border-bottom:1px dashed var(--line)}
.side-stat:last-child{border-bottom:none;padding-bottom:0}
.side-stat .dot{width:9px;height:9px;border-radius:50%;background:var(--primary);flex-shrink:0;box-shadow:0 0 0 4px var(--primary-soft)}
.side-stat span{font-size:14px;color:var(--muted)}
.side-stat strong{font-size:14.5px;color:var(--ink);display:block;font-weight:700}

/* ===== 相关推荐 ===== */
.related-section{padding:0 0 76px}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:28px;flex-wrap:wrap}
.section-head h2{font-size:clamp(1.4rem,2.6vw,1.9rem)}
.section-head p{font-size:15px;color:var(--muted);margin-top:8px;max-width:620px}
.related-grid{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;
}
.related-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r);
  overflow:hidden;display:flex;flex-direction:column;
  transition:transform .3s ease,box-shadow .3s ease,border-color .3s ease;
}
.related-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#bfe4da}
.related-thumb{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--surface-2)}
.related-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.related-card:hover .related-thumb img{transform:scale(1.02)}
.related-tag{
  position:absolute;left:14px;top:14px;padding:.28rem .7rem;border-radius:999px;
  background:rgba(255,255,255,.92);color:var(--primary-dark);font-size:12.5px;font-weight:700;
  letter-spacing:.02em;
}
.related-body{padding:20px 20px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.related-body h3{font-size:1.0625rem;line-height:1.5}
.related-body p{font-size:14.5px;color:var(--muted);line-height:1.7;flex:1}
.related-meta{display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--muted);border-top:1px solid var(--line);padding-top:14px}
.related-meta .go{display:inline-flex;align-items:center;gap:6px;color:var(--primary);font-weight:600}
.related-meta .go svg{width:15px;height:15px;stroke:currentColor;fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;transition:transform .25s ease}
.related-card:hover .related-meta .go svg{transform:translateX(4px)}

.back-row{margin-top:32px;display:flex;flex-wrap:wrap;gap:12px;align-items:center}
.back-row .hint{font-size:14.5px;color:var(--muted)}

/* ===== 底部 CTA ===== */
.cta-band{
  position:relative;
  background:linear-gradient(120deg,#0B3A34 0%,var(--primary-dark) 55%,var(--primary) 100%);
  border-radius:var(--r-lg);
  padding:clamp(32px,5vw,56px);
  color:#fff;overflow:hidden;
  display:grid;grid-template-columns:minmax(0,1.4fr) minmax(0,1fr);
  gap:28px;align-items:center;
}
.cta-band::before{
  content:"";position:absolute;right:-90px;top:-90px;width:320px;height:320px;border-radius:50%;
  background:radial-gradient(circle,rgba(224,122,63,.35),rgba(224,122,63,0) 70%);
}
.cta-band h2{color:#fff;font-size:clamp(1.45rem,2.8vw,2.1rem);max-width:560px}
.cta-band p{color:rgba(255,255,255,.82);margin-top:14px;font-size:15.5px;max-width:560px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;justify-content:flex-end;position:relative;z-index:2}
.cta-actions .btn.btn-outline-brand{border-color:rgba(255,255,255,.6);color:#fff}
.cta-actions .btn.btn-outline-brand:hover{background:rgba(255,255,255,.14);color:#fff}

/* ===== 页脚 ===== */
.site-footer{background:var(--footer-bg);color:rgba(255,255,255,.72);padding:64px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.3fr;gap:36px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .brand-mark{box-shadow:none;background:linear-gradient(140deg,#12a08e,#0E7A6D)}
.footer-brand strong{color:#fff;font-size:16.5px;font-weight:800;letter-spacing:-.02em}
.site-footer p{font-size:14.5px;line-height:1.8;color:rgba(255,255,255,.66)}
.site-footer h4{color:#fff;font-size:15px;margin-bottom:16px;font-weight:700}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{color:rgba(255,255,255,.72);font-size:14.5px}
.footer-links a:hover{color:#9FE3D5}
.footer-contact{display:flex;flex-direction:column;gap:12px}
.footer-contact li{font-size:14.5px;color:rgba(255,255,255,.72);line-height:1.7}
.footer-contact span{color:#9FE3D5;font-weight:600}
.footer-bottom{
  margin-top:52px;border-top:1px solid rgba(255,255,255,.14);
  padding:22px 0 26px;display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:13.5px;color:rgba(255,255,255,.55);
}
.footer-bottom a{color:#9FE3D5}
.footer-bottom a:hover{color:#fff}

/* ===== 响应式 ===== */
@media (min-width:992px){
  .article-layout{grid-template-columns:minmax(0,1fr) 320px;gap:44px}
}
@media (max-width:991.98px){
  .header-inner{height:66px}
  .nav-pills-wrap,.header-actions{display:none !important}
  .article-hero{padding:40px 0 46px}
  .article-main{padding:40px 0 56px}
  .cta-band{grid-template-columns:1fr}
  .cta-actions{justify-content:flex-start}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
}
@media (max-width:767.98px){
  body{font-size:16px}
  .related-grid{grid-template-columns:1fr}
  .article-body{padding:26px 20px 32px;border-radius:var(--r)}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column}
  .cta-band{border-radius:var(--r);padding:30px 22px}
  .cta-actions{flex-direction:column;align-items:stretch}
  .cta-actions .btn{width:100%}
}
@media (max-width:575.98px){
  .article-title{font-size:1.5rem}
  .meta-row{font-size:13px;gap:8px 12px}
  .prose table{display:block;overflow-x:auto;white-space:nowrap}
  .back-row{flex-direction:column;align-items:stretch}
  .back-row .btn{width:100%}
}

/* roulang page: category1 */
:root{
  --primary:#0E7A6D;
  --primary-dark:#095E54;
  --primary-soft:#D8F0EA;
  --accent:#E07A3F;
  --accent-soft:#FBE7D8;
  --bg:#F6F7F4;
  --surface:#FFFFFF;
  --surface-2:#EDF3EF;
  --ink:#17211E;
  --muted:#5B6B65;
  --line:#DCE5DF;
  --footer-bg:#12302C;
  --success:#2E7D5B;
  --warning:#B7791F;
  --radius-sm:10px;
  --radius:16px;
  --radius-lg:20px;
  --radius-pill:999px;
  --shadow-sm:0 2px 8px rgba(23,33,30,.06);
  --shadow:0 12px 32px rgba(14,122,109,.10);
  --shadow-lg:0 24px 64px rgba(23,33,30,.14);
  --container:1280px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:17px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--primary);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--primary-dark);}
button,input,select,textarea{font:inherit;color:inherit;}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.02em;line-height:1.28;color:var(--ink);}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;}

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

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(255,255,255,.96);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:0 10px 30px rgba(23,33,30,.08);}
.nav-inner{display:flex;align-items:center;gap:18px;min-height:74px;}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none;flex:0 0 auto;}
.brand:hover{color:inherit;}
.brand-mark{
  width:40px;height:40px;border-radius:13px;
  background:linear-gradient(140deg,var(--primary),var(--primary-dark));
  color:#fff;display:grid;place-items:center;font-weight:800;font-size:1.05rem;
  box-shadow:0 6px 16px rgba(14,122,109,.28);
}
.brand-text strong{display:block;font-size:1rem;font-weight:800;letter-spacing:-.02em;line-height:1.25;}
.brand-text span{display:block;font-size:.72rem;color:var(--muted);letter-spacing:.02em;line-height:1.4;}
.nav-pills-wrap{gap:6px;margin-inline:auto;}
.nav-pill{
  display:inline-flex;align-items:center;
  padding:.5rem 1rem;border-radius:var(--radius-pill);
  font-size:.94rem;font-weight:600;color:var(--muted);
  transition:background .2s ease,color .2s ease;
  white-space:nowrap;
}
.nav-pill:hover{background:var(--primary-soft);color:var(--primary-dark);}
.nav-pill.is-active{background:var(--primary-soft);color:var(--primary);}
.header-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.menu-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  border:1px solid var(--line);background:var(--surface);
  align-items:center;justify-content:center;cursor:pointer;
}
.menu-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;position:relative;}
.menu-toggle span::before,.menu-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);border-radius:2px;
}
.menu-toggle span::before{top:-6px;}
.menu-toggle span::after{top:6px;}

.drawer-mask{
  position:fixed;inset:0;background:rgba(18,48,44,.45);
  opacity:0;visibility:hidden;transition:opacity .3s ease,visibility .3s ease;z-index:1040;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.mobile-drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(86vw,360px);
  background:var(--surface);z-index:1050;
  transform:translateX(102%);transition:transform .32s cubic-bezier(.4,0,.2,1);
  display:flex;flex-direction:column;padding:24px 22px;
  box-shadow:var(--shadow-lg);
}
.mobile-drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px;}
.drawer-close{
  width:40px;height:40px;border-radius:12px;border:1px solid var(--line);
  background:var(--surface-2);cursor:pointer;font-size:1.2rem;line-height:1;
}
.drawer-nav{display:flex;flex-direction:column;gap:6px;flex:1;}
.drawer-nav a{
  display:block;padding:.85rem 1rem;border-radius:14px;
  font-size:1.08rem;font-weight:700;color:var(--ink);
}
.drawer-nav a:hover,.drawer-nav a.is-active{background:var(--primary-soft);color:var(--primary-dark);}
.drawer-foot{margin-top:auto;padding-top:18px;border-top:1px solid var(--line);}

/* ---------- 按钮 ---------- */
.btn-brand,.btn-accent,.btn-outline-brand{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:.875rem 1.5rem;border-radius:var(--radius-pill);
  font-weight:600;font-size:.95rem;border:1px solid transparent;
  cursor:pointer;transition:all .22s ease;text-decoration:none;
}
.btn-brand{background:var(--primary);color:#fff;box-shadow:0 8px 20px rgba(14,122,109,.22);}
.btn-brand:hover{background:var(--primary-dark);color:#fff;transform:translateY(-2px);box-shadow:0 14px 30px rgba(14,122,109,.3);}
.btn-brand:active{transform:translateY(0);}
.btn-accent{background:var(--accent);color:#fff;box-shadow:0 8px 20px rgba(224,122,63,.24);}
.btn-accent:hover{background:#c9662f;color:#fff;transform:translateY(-2px);box-shadow:0 14px 30px rgba(224,122,63,.32);}
.btn-outline-brand{background:transparent;border-color:var(--primary);color:var(--primary);}
.btn-outline-brand:hover{background:var(--primary-soft);color:var(--primary-dark);transform:translateY(-2px);}
.btn-sm{padding:.62rem 1.15rem;font-size:.88rem;}
.btn-block{width:100%;}

/* ---------- 标签 / 徽章 ---------- */
.badge-chip{
  display:inline-flex;align-items:center;gap:6px;
  padding:.3rem .75rem;border-radius:var(--radius-pill);
  font-size:.78rem;font-weight:600;line-height:1.6;
}
.chip-soft{background:var(--primary-soft);color:var(--primary-dark);}
.chip-accent{background:var(--accent-soft);color:#a1521f;}
.chip-line{background:var(--surface);border:1px solid var(--line);color:var(--muted);}

/* ---------- 页面头部 ---------- */
.page-hero{
  position:relative;overflow:hidden;
  padding:44px 0 56px;
  background:var(--surface-2);
  border-bottom:1px solid var(--line);
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;
  opacity:.18;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(246,247,244,.96) 0%,rgba(246,247,244,.82) 52%,rgba(237,243,239,.62) 100%);
}
.page-hero .container{position:relative;z-index:2;}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:.84rem;color:var(--muted);margin-bottom:20px;}
.crumb a{color:var(--muted);}
.crumb a:hover{color:var(--primary);}
.crumb .sep{opacity:.55;}
.crumb .current{color:var(--primary);font-weight:600;}
.page-hero h1{
  font-size:clamp(1.85rem,4vw,2.9rem);
  max-width:20ch;
  margin-bottom:16px;
}
.page-hero .lede{max-width:62ch;color:var(--muted);font-size:1.03rem;}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px;}
.hero-metrics{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;}
.metric-pill{
  display:flex;align-items:center;gap:8px;
  padding:.5rem .95rem;border-radius:var(--radius-pill);
  background:rgba(255,255,255,.92);border:1px solid var(--line);
  font-size:.84rem;color:var(--muted);box-shadow:var(--shadow-sm);
}
.metric-pill strong{color:var(--ink);font-variant-numeric:tabular-nums;font-weight:700;}
.dot{width:8px;height:8px;border-radius:50%;background:var(--primary);flex:0 0 auto;}
.dot.accent{background:var(--accent);}

/* ---------- 筛选胶囊 ---------- */
.filter-bar{
  display:flex;flex-wrap:wrap;gap:10px;
  padding:14px 0 6px;
}
.filter-chip{
  padding:.5rem 1.1rem;border-radius:var(--radius-pill);
  border:1px solid var(--line);background:var(--surface);
  font-size:.88rem;font-weight:600;color:var(--muted);
  cursor:pointer;transition:all .2s ease;
}
.filter-chip:hover{border-color:var(--primary);color:var(--primary);}
.filter-chip.is-active{background:var(--primary);border-color:var(--primary);color:#fff;box-shadow:0 6px 16px rgba(14,122,109,.22);}

/* ---------- 板块 ---------- */
.section{padding:76px 0;}
.section-tight{padding:56px 0;}
.section-head{max-width:64ch;margin-bottom:36px;}
.section-head h2{font-size:clamp(1.6rem,2.6vw,2.25rem);margin-bottom:12px;}
.section-head p{color:var(--muted);}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:.8rem;font-weight:700;letter-spacing:.08em;
  color:var(--primary);text-transform:uppercase;margin-bottom:14px;
}

/* ---------- 入口卡片 ---------- */
.entry-card{
  position:relative;display:flex;flex-direction:column;height:100%;
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-lg);overflow:hidden;
  transition:transform .28s ease,box-shadow .28s ease,border-color .28s ease;
}
.entry-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:var(--primary-soft);}
.entry-card .thumb{aspect-ratio:16/10;overflow:hidden;background:var(--surface-2);}
.entry-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease;}
.entry-card:hover .thumb img{transform:scale(1.02);}
.entry-card .body{padding:20px 20px 22px;display:flex;flex-direction:column;flex:1;gap:10px;}
.entry-card h3{font-size:1.12rem;font-weight:700;}
.entry-card p{font-size:.92rem;color:var(--muted);flex:1;}
.card-meta{display:flex;flex-wrap:wrap;gap:8px;align-items:center;}
.card-link{
  display:inline-flex;align-items:center;gap:6px;
  font-size:.9rem;font-weight:700;color:var(--primary);
}
.card-link .arrow{transition:transform .25s ease;}
.entry-card:hover .card-link .arrow{transform:translateX(4px);}

/* ---------- 粘性侧栏 ---------- */
.sticky-panel{position:sticky;top:96px;display:flex;flex-direction:column;gap:18px;}
.panel-card{
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-lg);padding:22px;
}
.panel-card h3{font-size:1rem;margin-bottom:14px;}
.toc-list{display:flex;flex-direction:column;gap:2px;}
.toc-list a{
  display:block;padding:.5rem .7rem;border-radius:var(--radius-sm);
  font-size:.9rem;color:var(--muted);border-left:2px solid transparent;
}
.toc-list a:hover{background:var(--surface-2);color:var(--primary-dark);border-left-color:var(--primary);}
.promo-card{
  background:linear-gradient(150deg,var(--primary) 0%,var(--primary-dark) 100%);
  color:#fff;border:none;
}
.promo-card h3{color:#fff;}
.promo-card p{font-size:.9rem;color:rgba(255,255,255,.86);margin-bottom:16px;}
.promo-card .btn-accent{box-shadow:none;}

/* ---------- 流程步骤 ---------- */
.step-list{display:grid;gap:16px;}
.step-item{
  display:flex;gap:18px;align-items:flex-start;
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius);padding:20px 22px;
  transition:border-color .25s ease,box-shadow .25s ease;
}
.step-item:hover{border-color:var(--primary-soft);box-shadow:var(--shadow-sm);}
.step-num{
  flex:0 0 auto;width:42px;height:42px;border-radius:13px;
  display:grid;place-items:center;
  background:var(--primary-soft);color:var(--primary-dark);
  font-weight:800;font-variant-numeric:tabular-nums;
}
.step-item h3{font-size:1.05rem;margin-bottom:6px;}
.step-item p{font-size:.92rem;color:var(--muted);}

/* ---------- 校验版块 ---------- */
.check-mosaic{display:grid;gap:18px;grid-template-columns:1.35fr 1fr;}
.check-card{
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-lg);padding:26px;
}
.check-card.lead-card{background:var(--surface-2);}
.check-card h3{font-size:1.15rem;margin-bottom:12px;}
.check-card p{font-size:.93rem;color:var(--muted);}
.check-list{margin-top:16px;display:grid;gap:12px;}
.check-list li{display:flex;gap:10px;font-size:.92rem;color:var(--ink);align-items:flex-start;}
.check-list li svg{flex:0 0 auto;margin-top:4px;color:var(--primary);}
.check-list li span{color:var(--muted);}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:960px;margin:0 auto;}
.faq-accordion .accordion-item{
  border:1px solid var(--line);border-radius:14px;overflow:hidden;
  margin-bottom:12px;background:var(--surface);
}
.faq-accordion .accordion-button{
  font-size:1.05rem;font-weight:600;color:var(--ink);
  background:transparent;padding:1.05rem 1.25rem;border:none;
  box-shadow:none;border-left:3px solid transparent;
}
.faq-accordion .accordion-button:not(.collapsed){
  background:var(--surface-2);color:var(--primary-dark);
  border-left-color:var(--accent);box-shadow:none;
}
.faq-accordion .accordion-button:focus{box-shadow:0 0 0 3px rgba(224,122,63,.18);}
.faq-accordion .accordion-body{font-size:.95rem;line-height:1.8;color:var(--muted);padding-top:0;}

/* ---------- 底部 CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;
  border-radius:24px;padding:52px 44px;
  background:linear-gradient(135deg,var(--primary) 0%,var(--primary-dark) 100%);
  color:#fff;
}
.cta-band::after{
  content:"";position:absolute;right:-70px;top:-70px;width:280px;height:280px;
  border-radius:50%;background:rgba(255,255,255,.08);
}
.cta-band h2{color:#fff;font-size:clamp(1.5rem,2.6vw,2.1rem);margin-bottom:12px;max-width:24ch;}
.cta-band p{color:rgba(255,255,255,.88);max-width:58ch;font-size:.98rem;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px;position:relative;z-index:2;}
.cta-band .btn-outline-brand{border-color:rgba(255,255,255,.7);color:#fff;}
.cta-band .btn-outline-brand:hover{background:rgba(255,255,255,.14);color:#fff;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--footer-bg);color:rgba(255,255,255,.78);padding:64px 0 28px;margin-top:80px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:36px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.footer-brand .brand-mark{
  width:36px;height:36px;border-radius:11px;font-size:.95rem;
  background:rgba(216,240,234,.16);color:#D8F0EA;box-shadow:none;
}
.footer-brand strong{color:#fff;font-size:1rem;letter-spacing:-.01em;}
.site-footer p{font-size:.88rem;line-height:1.85;color:rgba(255,255,255,.68);}
.site-footer h4{color:#fff;font-size:.95rem;margin-bottom:16px;letter-spacing:.01em;}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{color:rgba(255,255,255,.72);font-size:.89rem;}
.footer-links a:hover{color:var(--primary-soft);}
.footer-contact{display:flex;flex-direction:column;gap:10px;font-size:.86rem;}
.footer-contact li{line-height:1.75;color:rgba(255,255,255,.7);}
.footer-contact span{color:var(--primary-soft);font-weight:600;}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid rgba(255,255,255,.14);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:.82rem;color:rgba(255,255,255,.6);
}
.footer-bottom a{color:rgba(255,255,255,.72);}
.footer-bottom a:hover{color:var(--primary-soft);}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .section{padding:66px 0;}
  .check-mosaic{grid-template-columns:1fr;}
}
@media (max-width:991.98px){
  .nav-pills-wrap{display:none !important;}
  .header-actions .btn-brand{display:none;}
  .menu-toggle{display:flex;}
  .nav-inner{justify-content:space-between;min-height:66px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px;}
  .sticky-panel{position:static;}
}
@media (max-width:767.98px){
  body{font-size:16px;}
  .section{padding:54px 0;}
  .page-hero{padding:32px 0 42px;}
  .page-hero h1{max-width:none;}
  .hero-actions .btn-brand,.hero-actions .btn-accent,.hero-actions .btn-outline-brand{width:100%;}
  .cta-band{padding:36px 24px;border-radius:20px;}
  .cta-actions .btn-brand,.cta-actions .btn-outline-brand{width:100%;}
  .step-item{flex-direction:column;gap:12px;}
}
@media (max-width:575.98px){
  .container{padding:0 16px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .brand-text span{display:none;}
}

/* roulang page: category2 */
:root{
  --primary:#0E7A6D;
  --primary-dark:#095E54;
  --primary-soft:#D8F0EA;
  --accent:#E07A3F;
  --accent-soft:#FBE7D8;
  --bg:#F6F7F4;
  --surface:#FFFFFF;
  --surface-2:#EDF3EF;
  --ink:#17211E;
  --muted:#5B6B65;
  --line:#DCE5DF;
  --footer-bg:#12302C;
  --success:#2E7D5B;
  --warning:#B7791F;
  --danger:#B4453A;
  --radius-lg:20px;
  --radius-md:16px;
  --radius-sm:12px;
  --shadow-sm:0 2px 8px rgba(23,33,30,.06);
  --shadow:0 12px 32px rgba(14,122,109,.10);
  --shadow-lg:0 24px 64px rgba(23,33,30,.14);
  --ease:.28s cubic-bezier(.4,0,.2,1);
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Helvetica Neue",sans-serif;
  font-size:16.5px;
  line-height:1.78;
  letter-spacing:.005em;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;}
a{color:var(--primary);text-decoration:none;transition:color var(--ease);}
a:hover{color:var(--primary-dark);}
button{font-family:inherit;}
h1,h2,h3,h4,h5{margin:0;font-weight:800;letter-spacing:-.02em;line-height:1.28;color:var(--ink);}
p{margin:0 0 1.05em;}
p:last-child{margin-bottom:0;}
ul,ol{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:6px;}

.container{max-width:1280px;padding-left:24px;padding-right:24px;margin:0 auto;}
@media (min-width:1400px){.container{max-width:1320px;}}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:1040;
  background:rgba(255,255,255,.96);
  backdrop-filter:saturate(160%) blur(12px);
  border-bottom:1px solid var(--line);
  transition:box-shadow var(--ease),background var(--ease);
}
.site-header.is-scrolled{box-shadow:0 10px 28px rgba(23,33,30,.09);background:#fff;}
.header-inner{display:flex;align-items:center;gap:20px;min-height:76px;}

.brand{display:flex;align-items:center;gap:11px;color:var(--ink);flex-shrink:0;}
.brand:hover{color:var(--ink);}
.brand-mark{
  width:40px;height:40px;border-radius:13px;flex-shrink:0;
  background:linear-gradient(140deg,var(--primary) 0%,var(--primary-dark) 100%);
  color:#fff;display:grid;place-items:center;font-weight:800;font-size:18px;
  box-shadow:0 6px 16px rgba(14,122,109,.28);
}
.brand-text{display:flex;flex-direction:column;line-height:1.2;}
.brand-main{font-size:15.5px;font-weight:800;letter-spacing:-.02em;}
.brand-sub{font-size:11.5px;color:var(--muted);font-weight:500;letter-spacing:.06em;}

.nav-pills-wrap{display:flex;align-items:center;gap:6px;margin-left:auto;}
.nav-pill{
  padding:.5rem 1rem;border-radius:999px;font-size:14.5px;font-weight:600;
  color:var(--muted);white-space:nowrap;transition:background var(--ease),color var(--ease);
}
.nav-pill:hover{background:var(--primary-soft);color:var(--primary-dark);}
.nav-pill.is-active{background:var(--primary-soft);color:var(--primary-dark);}

.header-cta{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.menu-toggle{
  width:44px;height:44px;border-radius:13px;border:1px solid var(--line);background:#fff;
  display:grid;place-items:center;gap:4px;padding:0;margin-left:auto;cursor:pointer;
}
.menu-toggle span{display:block;width:19px;height:2px;background:var(--ink);border-radius:2px;}
.menu-toggle:hover{border-color:var(--primary);background:var(--primary-soft);}

/* ---------- buttons ---------- */
.btn-brand,.btn-outline-brand,.btn-accent,.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:999px;padding:.875rem 1.5rem;font-size:15px;font-weight:600;
  border:1px solid transparent;cursor:pointer;text-align:center;
  transition:transform var(--ease),background var(--ease),box-shadow var(--ease),color var(--ease),border-color var(--ease);
}
.btn-brand{background:var(--primary);color:#fff;box-shadow:0 10px 24px rgba(14,122,109,.22);}
.btn-brand:hover{background:var(--primary-dark);color:#fff;transform:translateY(-2px);box-shadow:0 16px 32px rgba(14,122,109,.28);}
.btn-brand:active{transform:translateY(0);}
.btn-accent{background:var(--accent);color:#fff;box-shadow:0 10px 24px rgba(224,122,63,.28);}
.btn-accent:hover{background:#C96A32;color:#fff;transform:translateY(-2px);}
.btn-outline-brand{background:transparent;border-color:var(--primary);color:var(--primary);}
.btn-outline-brand:hover{background:var(--primary-soft);color:var(--primary-dark);border-color:var(--primary-dark);}
.btn-ghost{background:#fff;border-color:var(--line);color:var(--ink);}
.btn-ghost:hover{border-color:var(--primary);color:var(--primary-dark);background:var(--primary-soft);}
.btn-sm{padding:.6rem 1.15rem;font-size:14px;}
.btn-block{width:100%;}

/* ---------- mobile drawer ---------- */
.drawer-mask{
  position:fixed;inset:0;background:rgba(23,33,30,.45);opacity:0;visibility:hidden;
  transition:opacity var(--ease);z-index:1050;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.mobile-drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(86vw,360px);background:#fff;z-index:1060;
  transform:translateX(102%);transition:transform .32s cubic-bezier(.4,0,.2,1);
  display:flex;flex-direction:column;padding:22px 22px 24px;box-shadow:-18px 0 48px rgba(23,33,30,.2);
}
.mobile-drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:26px;}
.drawer-close{width:40px;height:40px;border-radius:12px;border:1px solid var(--line);background:#fff;font-size:19px;color:var(--muted);cursor:pointer;}
.drawer-close:hover{background:var(--surface-2);color:var(--ink);}
.drawer-nav{display:flex;flex-direction:column;gap:8px;}
.drawer-nav a{
  padding:.85rem 1rem;border-radius:14px;font-size:17px;font-weight:700;color:var(--ink);
}
.drawer-nav a:hover,.drawer-nav a.is-active{background:var(--primary-soft);color:var(--primary-dark);}
.drawer-foot{margin-top:auto;padding-top:22px;border-top:1px solid var(--line);}

/* ---------- category hero ---------- */
.cat-hero{
  position:relative;color:#fff;overflow:hidden;
  padding:52px 0 60px;
  background:
    linear-gradient(115deg,rgba(9,52,47,.94) 0%,rgba(14,122,109,.84) 58%,rgba(23,33,30,.72) 100%),
    url('/assets/images/backpic/back-2.png') center/cover no-repeat;
}
.cat-hero::after{
  content:"";position:absolute;inset:auto 0 0 0;height:120px;
  background:linear-gradient(to top,rgba(9,52,47,.55),transparent);
}
.cat-hero .container{position:relative;z-index:2;}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:rgba(255,255,255,.72);margin-bottom:20px;}
.crumb a{color:rgba(255,255,255,.86);}
.crumb a:hover{color:#fff;text-decoration:underline;}
.crumb .sep{opacity:.55;}
.crumb .current{color:#fff;font-weight:600;}
.cat-hero h1{
  color:#fff;font-size:clamp(2rem,4.2vw,3.1rem);max-width:20em;
  margin-bottom:18px;letter-spacing:-.025em;
}
.cat-hero .lede{
  max-width:44em;font-size:clamp(1rem,1.6vw,1.125rem);color:rgba(255,255,255,.9);margin-bottom:26px;
}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:30px;}
.tag-pill{
  display:inline-flex;align-items:center;gap:7px;padding:.42rem .95rem;border-radius:999px;
  font-size:13.5px;font-weight:600;background:rgba(255,255,255,.14);
  border:1px solid rgba(255,255,255,.28);color:#fff;
}
.tag-pill.dot::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent);}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;}
.cat-hero .btn-outline-brand{border-color:rgba(255,255,255,.7);color:#fff;}
.cat-hero .btn-outline-brand:hover{background:rgba(255,255,255,.16);border-color:#fff;color:#fff;}

/* ---------- layout with sticky toc ---------- */
.cat-body{padding:68px 0 84px;}
.layout{display:grid;grid-template-columns:290px minmax(0,1fr);gap:44px;align-items:start;}

.toc-card{
  position:sticky;top:100px;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-lg);padding:24px 22px;box-shadow:var(--shadow-sm);
}
.toc-title{
  font-size:12.5px;font-weight:700;letter-spacing:.14em;color:var(--muted);
  text-transform:uppercase;margin-bottom:16px;
}
.toc-list{display:flex;flex-direction:column;gap:4px;}
.toc-list a{
  display:flex;align-items:center;gap:10px;padding:.6rem .7rem;border-radius:11px;
  font-size:14.5px;font-weight:600;color:var(--muted);transition:var(--ease);
}
.toc-list a .idx{
  width:22px;height:22px;border-radius:7px;background:var(--surface-2);color:var(--muted);
  display:grid;place-items:center;font-size:11.5px;font-weight:700;flex-shrink:0;
}
.toc-list a:hover{background:var(--primary-soft);color:var(--primary-dark);}
.toc-list a:hover .idx{background:var(--primary);color:#fff;}
.toc-list a.is-current{background:var(--primary-soft);color:var(--primary-dark);}
.toc-list a.is-current .idx{background:var(--primary);color:#fff;}
.toc-note{
  margin-top:20px;padding:16px;border-radius:14px;background:var(--surface-2);
  font-size:13.5px;color:var(--muted);line-height:1.7;
}
.toc-note strong{display:block;color:var(--ink);font-size:14px;margin-bottom:6px;}

/* ---------- section blocks ---------- */
.sec{margin-bottom:52px;}
.sec:last-child{margin-bottom:0;}
.sec-head{margin-bottom:22px;}
.sec-head .eyebrow{
  display:inline-block;font-size:12.5px;font-weight:700;letter-spacing:.14em;
  color:var(--primary);text-transform:uppercase;margin-bottom:10px;
}
.sec-head h2{font-size:clamp(1.5rem,2.4vw,2rem);}
.sec-head p{color:var(--muted);margin-top:10px;max-width:52em;font-size:15.5px;}

.card-panel{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:26px 26px;box-shadow:var(--shadow-sm);
}
.card-panel + .card-panel{margin-top:18px;}

.figure-card{
  overflow:hidden;border-radius:var(--radius-lg);border:1px solid var(--line);
  background:var(--surface);box-shadow:var(--shadow-sm);margin:0;
}
.figure-card img{width:100%;height:270px;object-fit:cover;}

.check-list{display:flex;flex-direction:column;gap:12px;}
.check-list li{
  display:flex;gap:12px;align-items:flex-start;font-size:15px;color:var(--ink);
  padding:13px 15px;background:var(--surface-2);border-radius:14px;line-height:1.7;
}
.check-list li svg{flex-shrink:0;margin-top:3px;color:var(--primary);}

/* timeline */
.timeline{position:relative;padding-left:6px;}
.tl-item{display:grid;grid-template-columns:46px minmax(0,1fr);gap:16px;position:relative;padding-bottom:26px;}
.tl-item:last-child{padding-bottom:0;}
.tl-item::before{
  content:"";position:absolute;left:22px;top:44px;bottom:0;width:2px;background:var(--line);
}
.tl-item:last-child::before{display:none;}
.tl-dot{
  width:46px;height:46px;border-radius:14px;background:var(--primary-soft);color:var(--primary-dark);
  display:grid;place-items:center;font-weight:800;font-size:16px;flex-shrink:0;z-index:1;
}
.tl-body{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-md);padding:18px 20px;box-shadow:var(--shadow-sm);}
.tl-body h3{font-size:1.08rem;margin-bottom:8px;}
.tl-body p{color:var(--muted);font-size:14.8px;margin-bottom:0;}

/* spec table */
.table-wrap{
  overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius-lg);
  background:var(--surface);box-shadow:var(--shadow-sm);-webkit-overflow-scrolling:touch;
}
table.spec-table{width:100%;border-collapse:collapse;min-width:660px;font-variant-numeric:tabular-nums;}
table.spec-table caption{
  text-align:left;padding:18px 22px 0;font-size:14px;color:var(--muted);
}
table.spec-table th,table.spec-table td{
  padding:15px 20px;text-align:left;font-size:14.6px;border-bottom:1px solid var(--line);
}
table.spec-table thead th{
  background:var(--surface-2);font-weight:700;font-size:13.5px;color:var(--muted);
  letter-spacing:.04em;white-space:nowrap;
}
table.spec-table tbody tr:last-child td{border-bottom:none;}
table.spec-table tbody tr:hover{background:#FAFCFA;}
table.spec-table td strong{color:var(--ink);font-weight:700;}
.badge-soft{
  display:inline-block;padding:.24rem .7rem;border-radius:999px;font-size:12.5px;
  font-weight:600;background:var(--primary-soft);color:var(--primary-dark);white-space:nowrap;
}
.badge-accent{background:var(--accent-soft);color:#A8511F;}

/* device columns */
.device-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;}
.device-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:24px 22px;box-shadow:var(--shadow-sm);transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.device-card:hover{transform:translateY(-4px);border-color:var(--primary-soft);box-shadow:var(--shadow);}
.device-card .dev-head{display:flex;align-items:center;gap:12px;margin-bottom:14px;}
.dev-icon{
  width:42px;height:42px;border-radius:13px;background:var(--primary-soft);color:var(--primary-dark);
  display:grid;place-items:center;flex-shrink:0;
}
.device-card h3{font-size:1.08rem;}
.device-card p{font-size:14.8px;color:var(--muted);}
.mini-list{display:flex;flex-direction:column;gap:9px;margin-top:14px;}
.mini-list li{
  position:relative;padding-left:18px;font-size:14.5px;color:var(--ink);line-height:1.7;
}
.mini-list li::before{
  content:"";position:absolute;left:0;top:.62em;width:7px;height:7px;border-radius:50%;
  background:var(--accent);
}
.mini-list.tint li::before{background:var(--primary);}

/* steps inline */
.step-row{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;}
.step-box{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-md);
  padding:20px;box-shadow:var(--shadow-sm);display:flex;gap:14px;
}
.step-num{
  width:32px;height:32px;border-radius:10px;background:var(--primary);color:#fff;
  display:grid;place-items:center;font-weight:800;font-size:14px;flex-shrink:0;
}
.step-box h4{font-size:1rem;margin-bottom:6px;}
.step-box p{font-size:14.4px;color:var(--muted);margin:0;}

/* faq */
.faq-wrap{display:flex;flex-direction:column;gap:12px;}
.accordion-item{
  border:1px solid var(--line)!important;border-radius:var(--radius-md)!important;
  overflow:hidden;background:var(--surface);box-shadow:var(--shadow-sm);
}
.accordion-button{
  font-size:1.05rem;font-weight:700;color:var(--ink);background:var(--surface);
  padding:18px 22px 18px 24px;border-left:3px solid transparent;
}
.accordion-button:not(.collapsed){
  background:var(--surface-2);color:var(--primary-dark);
  border-left-color:var(--accent);box-shadow:none;
}
.accordion-button:focus{box-shadow:none;border-color:var(--primary);}
.accordion-button::after{
  background-image:none;content:"";width:11px;height:11px;border-right:2px solid var(--muted);
  border-bottom:2px solid var(--muted);transform:rotate(45deg);transition:transform var(--ease);
  margin-left:auto;flex-shrink:0;
}
.accordion-button:not(.collapsed)::after{transform:rotate(-135deg);border-color:var(--primary-dark);}
.accordion-body{font-size:.95rem;line-height:1.8;color:var(--muted);padding:6px 24px 22px;background:var(--surface);}
.accordion-body strong{color:var(--ink);}

/* cta band */
.cta-band{
  position:relative;overflow:hidden;border-radius:26px;color:#fff;padding:52px 44px;
  background:
    linear-gradient(112deg,rgba(9,52,47,.95),rgba(14,122,109,.86)),
    url('/assets/images/backpic/back-3.png') center/cover no-repeat;
  box-shadow:var(--shadow-lg);
}
.cta-band h2{color:#fff;font-size:clamp(1.6rem,2.6vw,2.15rem);margin-bottom:14px;max-width:24em;}
.cta-band p{color:rgba(255,255,255,.88);max-width:44em;font-size:15.6px;}
.cta-band .hero-actions{margin-top:26px;}
.cta-band .btn-outline-brand{border-color:rgba(255,255,255,.7);color:#fff;}
.cta-band .btn-outline-brand:hover{background:rgba(255,255,255,.16);color:#fff;border-color:#fff;}

/* ---------- footer ---------- */
.site-footer{background:var(--footer-bg);color:rgba(255,255,255,.76);padding:64px 0 0;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px;padding-bottom:44px;}
.footer-brand{display:flex;align-items:center;gap:11px;margin-bottom:16px;}
.footer-brand .brand-mark{width:38px;height:38px;border-radius:12px;font-size:17px;background:linear-gradient(140deg,#14A08F,#0B6A5E);}
.footer-brand strong{color:#fff;font-size:15.5px;font-weight:800;letter-spacing:-.02em;}
.site-footer p{font-size:14.2px;line-height:1.82;color:rgba(255,255,255,.7);max-width:34em;}
.site-footer h4{color:#fff;font-size:14.5px;font-weight:700;margin-bottom:16px;letter-spacing:.02em;}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{color:rgba(255,255,255,.74);font-size:14.2px;}
.footer-links a:hover{color:#9FE3D6;}
.footer-contact{display:flex;flex-direction:column;gap:12px;}
.footer-contact li{font-size:14.2px;line-height:1.7;color:rgba(255,255,255,.74);}
.footer-contact span{color:#9FE3D6;font-weight:600;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.14);padding:20px 0 26px;
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:13.2px;color:rgba(255,255,255,.58);
}
.footer-bottom a{color:rgba(255,255,255,.72);}
.footer-bottom a:hover{color:#9FE3D6;}

/* ---------- responsive ---------- */
@media (max-width:1199.98px){
  .layout{grid-template-columns:250px minmax(0,1fr);gap:32px;}
}
@media (max-width:991.98px){
  .header-inner{min-height:68px;}
  .nav-pills-wrap,.header-cta{display:none!important;}
  .layout{grid-template-columns:minmax(0,1fr);gap:0;}
  .toc-card{position:static;margin-bottom:32px;}
  .cat-body{padding:48px 0 64px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px;}
}
@media (max-width:767.98px){
  body{font-size:16px;}
  .cat-hero{padding:36px 0 44px;}
  .hero-actions .btn-brand,.hero-actions .btn-outline-brand,.hero-actions .btn-accent{width:100%;}
  .device-grid,.step-row{grid-template-columns:minmax(0,1fr);}
  .figure-card img{height:200px;}
  .cta-band{padding:38px 24px;border-radius:20px;}
  .card-panel{padding:20px 18px;}
  .sec{margin-bottom:42px;}
}
@media (max-width:575.98px){
  .container{padding-left:18px;padding-right:18px;}
  .brand-main{font-size:14px;}
  .brand-sub{font-size:10.5px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;}
  .sec-head h2{font-size:1.45rem;}
}