/* roulang page: index */
:root{
  --brand:#137C6B;
  --brand-dark:#0E5F52;
  --brand-soft:#E4F1EE;
  --accent:#F26A3D;
  --accent-soft:#FDEDE6;
  --ink:#171A1C;
  --ink-2:#242827;
  --muted:#6B6F6C;
  --paper:#F7F4EE;
  --surface:#FFFFFF;
  --border:#E2DED6;
  --radius-card:14px;
  --radius-btn:10px;
  --shadow:0 10px 30px rgba(23,26,28,.06);
  --shadow-hover:0 16px 40px rgba(23,26,28,.10);
  --font-cn:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei","Hiragino Sans GB",sans-serif;
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:17px;
  line-height:1.8;
  letter-spacing:.02em;
  color:var(--ink-2);
  background:var(--paper);
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:var(--brand-dark);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--brand);}
h1,h2,h3,h4{color:var(--ink);font-weight:800;letter-spacing:.01em;margin:0;}
p{margin:0 0 1.15em;}
ul{margin:0 0 1.15em;padding-left:1.2em;}
button,input,select,textarea{font-family:inherit;font-size:inherit;}
:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(19,124,107,.32);border-radius:8px;}

.container{max-width:1200px;padding-left:20px;padding-right:20px;}
.section{padding:96px 0;}
.section-tight{padding:72px 0;}
.bg-paper{background:var(--paper);}
.bg-surface{background:var(--surface);}
.bg-ink{background:var(--ink);color:#EFEDE8;}

.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;letter-spacing:.14em;
  color:var(--brand);background:var(--brand-soft);
  border-radius:999px;padding:6px 14px;margin-bottom:18px;
}
.eyebrow.is-accent{color:#B8461F;background:var(--accent-soft);}
.section-head{max-width:740px;margin-bottom:52px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.section-head h2{font-size:clamp(26px,3.2vw,38px);line-height:1.32;margin-bottom:16px;}
.section-head p{color:var(--muted);font-size:16.5px;margin-bottom:0;}
.section-head .lead-strong{color:var(--ink-2);}

/* ---------- 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(--border);
}
.nav-inner{height:72px;display:flex;align-items:center;justify-content:space-between;gap:20px;}
.brand{display:inline-flex;align-items:center;gap:10px;text-decoration:none;flex-shrink:0;}
.brand-mark{
  width:38px;height:38px;border-radius:11px;
  background:linear-gradient(140deg,var(--brand),#0B5B4D);
  color:#fff;font-weight:800;font-size:18px;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 6px 16px rgba(19,124,107,.28);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-name{font-size:17px;font-weight:800;color:var(--ink);letter-spacing:.01em;}
.brand-sub{font-size:11.5px;color:var(--muted);letter-spacing:.16em;font-weight:600;}
.nav-links{display:flex;align-items:center;gap:4px;list-style:none;margin:0;padding:0;}
.nav-links a{
  position:relative;display:block;padding:9px 14px;border-radius:999px;
  color:var(--ink-2);font-size:15.5px;font-weight:500;white-space:nowrap;
  transition:background .2s ease,color .2s ease;
}
.nav-links a:hover{background:var(--brand-soft);color:var(--brand-dark);}
.nav-links a.active{color:var(--brand-dark);background:var(--brand-soft);font-weight:700;}
.nav-links a.active::after{
  content:"";position:absolute;left:50%;bottom:2px;transform:translateX(-50%);
  width:18px;height:3px;border-radius:999px;background:var(--brand);
}
.nav-cta{display:inline-flex;align-items:center;gap:8px;}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--border);
  background:var(--surface);color:var(--ink);font-size:20px;align-items:center;justify-content:center;
}

/* ---------- 按钮 ---------- */
.btn-brand,.btn-ghost,.btn-accent,.btn-light-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  border-radius:var(--radius-btn);padding:12px 26px;
  font-size:16px;font-weight:600;letter-spacing:.02em;
  cursor:pointer;border:1px solid transparent;
  transition:transform .2s ease,background .2s ease,color .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.btn-brand{background:var(--brand);color:#fff;border-color:var(--brand);box-shadow:0 8px 22px rgba(19,124,107,.24);}
.btn-brand:hover{background:var(--brand-dark);border-color:var(--brand-dark);color:#fff;transform:translateY(-2px);box-shadow:0 14px 30px rgba(19,124,107,.30);}
.btn-brand:focus-visible{box-shadow:0 0 0 3px rgba(19,124,107,.32);}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--ink);}
.btn-ghost:hover{background:var(--ink);color:#fff;transform:translateY(-2px);}
.btn-accent{background:var(--accent);color:#fff;border-color:var(--accent);box-shadow:0 8px 22px rgba(242,106,61,.26);}
.btn-accent:hover{background:#D9572C;border-color:#D9572C;color:#fff;transform:translateY(-2px);}
.btn-light-ghost{background:rgba(255,255,255,.10);color:#fff;border-color:rgba(255,255,255,.55);}
.btn-light-ghost:hover{background:#fff;color:var(--ink);transform:translateY(-2px);}
.btn-sm{padding:9px 18px;font-size:14.5px;}
.btn-block{width:100%;}
.btn[disabled],.btn-brand[disabled]{opacity:.5;pointer-events:none;}
.link-arrow{display:inline-flex;align-items:center;gap:7px;font-weight:600;color:var(--brand-dark);font-size:15.5px;}
.link-arrow i{transition:transform .2s ease;}
.link-arrow:hover i{transform:translateX(4px);}

/* ---------- Hero ---------- */
.hero{
  position:relative;
  min-height:560px;
  display:flex;align-items:center;
  color:#fff;
  background-image:
    linear-gradient(100deg,rgba(23,26,28,.90) 0%,rgba(23,26,28,.72) 44%,rgba(23,26,28,.30) 100%),
    url('/assets/images/backpic/back-1.webp');
  background-size:cover;
  background-position:center;
  overflow:hidden;
}
.hero-inner{padding:88px 0;position:relative;z-index:2;max-width:660px;}
.hero-badge{
  display:inline-flex;align-items:center;gap:9px;
  background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.30);
  color:#fff;border-radius:999px;padding:7px 16px;font-size:13.5px;font-weight:600;margin-bottom:22px;
}
.hero-badge .dot{width:7px;height:7px;border-radius:50%;background:var(--accent);}
.hero h1{
  color:#fff;
  font-size:clamp(30px,4.4vw,50px);
  line-height:1.24;font-weight:800;margin-bottom:20px;letter-spacing:.01em;
}
.hero h1 em{font-style:normal;color:#7FD6C3;}
.hero-sub{
  font-size:17.5px;line-height:1.8;color:rgba(255,255,255,.86);
  margin-bottom:32px;max-width:600px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:38px;}
.hero-tags{display:flex;flex-wrap:wrap;gap:12px;}
.hero-tag{
  display:flex;align-items:center;gap:10px;
  background:rgba(255,255,255,.10);border:1px solid rgba(255,255,255,.22);
  border-radius:12px;padding:10px 16px;
}
.hero-tag b{font-size:19px;color:#7FD6C3;font-weight:800;}
.hero-tag span{font-size:13.5px;color:rgba(255,255,255,.82);}

/* ---------- 价值主张条带 ---------- */
.value-strip{background:var(--ink);color:#EFEDE8;padding:0;}
.value-strip .row{gap:0;}
.value-item{
  padding:34px 28px;border-right:1px solid rgba(255,255,255,.08);
  display:flex;gap:16px;align-items:flex-start;
}
.value-item:last-child{border-right:none;}
.value-item i{font-size:22px;color:#7FD6C3;margin-top:4px;}
.value-item h3{font-size:17px;color:#fff;margin-bottom:6px;font-weight:700;}
.value-item p{margin:0;font-size:14.5px;color:rgba(239,237,232,.72);line-height:1.7;}

/* ---------- Bento 功能 ---------- */
.bento{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.bento-card{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-card);
  padding:28px;box-shadow:var(--shadow);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
  display:flex;flex-direction:column;
}
.bento-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:#CFE5E0;}
.bento-card .b-icon{
  width:46px;height:46px;border-radius:12px;background:var(--brand-soft);color:var(--brand-dark);
  display:flex;align-items:center;justify-content:center;font-size:19px;margin-bottom:18px;
}
.bento-card h3{font-size:19px;margin-bottom:10px;font-weight:700;}
.bento-card p{color:var(--muted);font-size:15.5px;margin-bottom:14px;}
.bento-card ul{padding-left:1.1em;margin-bottom:0;}
.bento-card li{font-size:14.5px;color:var(--ink-2);margin-bottom:6px;}
.bento-large{grid-column:span 2;grid-row:span 2;padding:0;overflow:hidden;}
.bento-large .bento-media{position:relative;overflow:hidden;height:230px;}
.bento-large .bento-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.bento-large:hover .bento-media img{transform:scale(1.03);}
.bento-large .bento-body{padding:26px 28px 28px;}
.bento-large h3{font-size:23px;}
.bento-large p{font-size:16px;}
.bento-tag{
  display:inline-block;background:var(--accent-soft);color:#B8461F;
  font-size:12.5px;font-weight:700;border-radius:999px;padding:4px 12px;margin-bottom:14px;
}

/* ---------- 场景步骤条 ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;position:relative;}
.step-card{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-card);
  padding:26px 24px;box-shadow:var(--shadow);position:relative;
  transition:transform .25s ease,box-shadow .25s ease;
}
.step-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);}
.step-no{
  width:38px;height:38px;border-radius:11px;background:var(--ink);color:#fff;
  display:flex;align-items:center;justify-content:center;font-weight:800;font-size:16px;margin-bottom:16px;
}
.step-card h3{font-size:18px;margin-bottom:12px;}
.step-line{font-size:14.8px;color:var(--muted);margin-bottom:10px;line-height:1.75;}
.step-line strong{color:var(--ink-2);font-weight:600;}
.step-result{
  margin-top:14px;padding-top:14px;border-top:1px dashed var(--border);
  font-size:14.5px;color:var(--brand-dark);font-weight:600;
}

/* ---------- 案例 ---------- */
.case-block{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;margin-bottom:72px;}
.case-block:last-child{margin-bottom:0;}
.case-block.reverse .case-media{order:2;}
.case-media{border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow);}
.case-media img{width:100%;height:100%;min-height:280px;object-fit:cover;transition:transform .4s ease;}
.case-block:hover .case-media img{transform:scale(1.03);}
.case-body .tag{
  display:inline-block;background:var(--brand-soft);color:var(--brand-dark);
  font-size:13px;font-weight:700;border-radius:999px;padding:5px 14px;margin-bottom:16px;
}
.case-body h3{font-size:25px;margin-bottom:16px;line-height:1.35;}
.case-row{margin-bottom:12px;font-size:15.5px;color:var(--muted);line-height:1.75;}
.case-row strong{color:var(--ink-2);font-weight:700;}
.metrics{display:flex;flex-wrap:wrap;gap:26px;margin-top:24px;padding-top:22px;border-top:1px solid var(--border);}
.metric b{display:block;font-size:26px;color:var(--accent);font-weight:800;line-height:1.2;}
.metric span{font-size:13.5px;color:var(--muted);}

/* ---------- 价格 ---------- */
.price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px;align-items:stretch;}
.price-card{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-card);
  padding:32px 28px;box-shadow:var(--shadow);display:flex;flex-direction:column;
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.price-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);}
.price-card.featured{border:2px solid var(--brand);position:relative;box-shadow:0 18px 44px rgba(19,124,107,.14);}
.price-card.featured::before{
  content:"推荐方案";position:absolute;top:-14px;left:28px;
  background:var(--brand);color:#fff;font-size:12.5px;font-weight:700;
  border-radius:999px;padding:5px 14px;letter-spacing:.06em;
}
.price-name{font-size:19px;font-weight:800;color:var(--ink);margin-bottom:8px;}
.price-desc{font-size:14.5px;color:var(--muted);margin-bottom:20px;min-height:44px;}
.price-value{display:flex;align-items:baseline;gap:6px;margin-bottom:6px;}
.price-value .num{font-size:34px;font-weight:800;color:var(--ink);letter-spacing:-.01em;}
.price-value .unit{font-size:15px;color:var(--muted);}
.price-cycle{font-size:13.5px;color:var(--muted);margin-bottom:22px;}
.price-list{list-style:none;padding:0;margin:0 0 26px;flex-grow:1;}
.price-list li{display:flex;gap:10px;font-size:15px;color:var(--ink-2);padding:8px 0;border-bottom:1px dashed var(--border);}
.price-list li:last-child{border-bottom:none;}
.price-list i{color:var(--brand);font-size:13px;margin-top:6px;}
.price-list li.off{color:#A9ADA9;}
.price-list li.off i{color:#C4C8C4;}

/* ---------- 资讯 ---------- */
.news-card{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-card);
  overflow:hidden;box-shadow:var(--shadow);height:100%;display:flex;flex-direction:column;
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:#CFE5E0;}
.news-cover{height:190px;overflow:hidden;background:var(--brand-soft);}
.news-cover img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.news-card:hover .news-cover img{transform:scale(1.04);}
.news-body{padding:22px 24px 24px;display:flex;flex-direction:column;flex-grow:1;}
.news-badge{
  align-self:flex-start;background:var(--brand-soft);color:var(--brand-dark);
  font-size:12.5px;font-weight:700;border-radius:999px;padding:4px 12px;margin-bottom:12px;
}
.news-card h3{font-size:17.5px;line-height:1.55;margin-bottom:10px;font-weight:700;}
.news-card h3 a{color:var(--ink);}
.news-card h3 a:hover{color:var(--brand-dark);}
.news-excerpt{
  font-size:14.6px;color:var(--muted);line-height:1.75;margin-bottom:16px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;
  font-size:13.5px;color:var(--muted);padding-top:14px;border-top:1px solid var(--border);
}
.empty-state{
  text-align:center;padding:56px 24px;border:1px dashed var(--border);
  border-radius:var(--radius-card);background:var(--surface);color:var(--muted);font-size:16px;
}

/* ---------- FAQ ---------- */
.faq-list{max-width:900px;margin:0 auto;}
.faq-item{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-card);
  margin-bottom:16px;overflow:hidden;box-shadow:var(--shadow);
}
.faq-item .accordion-button{
  background:var(--surface);color:var(--ink);font-size:17.5px;font-weight:700;
  padding:22px 26px;box-shadow:none;border:none;letter-spacing:.01em;line-height:1.6;
}
.faq-item .accordion-button::before{
  content:"";width:4px;height:20px;border-radius:999px;background:var(--brand);
  margin-right:16px;flex-shrink:0;
}
.faq-item .accordion-button:not(.collapsed){background:var(--brand-soft);color:var(--brand-dark);}
.faq-item .accordion-button:focus{box-shadow:0 0 0 3px rgba(19,124,107,.20);}
.faq-item .accordion-button::after{
  background-image:none;content:"\f067";font-family:"Font Awesome 6 Free";font-weight:900;
  font-size:14px;color:var(--brand-dark);transform:none;transition:transform .25s ease;
  display:flex;align-items:center;justify-content:center;width:26px;height:26px;
}
.faq-item .accordion-button:not(.collapsed)::after{content:"\f068";transform:rotate(180deg);}
.faq-item .accordion-body{
  padding:4px 26px 26px 46px;color:var(--muted);font-size:16px;line-height:1.85;
}

/* ---------- CTA 条 ---------- */
.cta-band{
  background:linear-gradient(120deg,#137C6B 0%,#0E5F52 60%,#0B4C42 100%);
  color:#fff;border-radius:18px;padding:56px 52px;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:32px;
  box-shadow:0 22px 50px rgba(14,95,82,.22);
}
.cta-band h2{color:#fff;font-size:clamp(23px,2.8vw,32px);margin-bottom:12px;line-height:1.35;}
.cta-band p{color:rgba(255,255,255,.82);margin:0;font-size:16px;max-width:620px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:rgba(239,237,232,.72);padding:72px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:44px;}
.footer-brand{display:flex;align-items:center;gap:11px;margin-bottom:18px;}
.footer-brand .brand-mark{background:linear-gradient(140deg,var(--brand),#0B5B4D);}
.footer-brand .brand-name{color:#fff;font-size:17px;font-weight:800;}
.footer-brand .brand-sub{color:rgba(239,237,232,.55);font-size:11.5px;letter-spacing:.16em;}
.footer-desc{font-size:14.6px;line-height:1.85;color:rgba(239,237,232,.62);margin-bottom:20px;}
.footer-badges{display:flex;flex-wrap:wrap;gap:10px;}
.footer-badges span{
  font-size:12.5px;border:1px solid rgba(255,255,255,.16);border-radius:999px;
  padding:5px 12px;color:rgba(239,237,232,.68);
}
.site-footer h4{color:#fff;font-size:15.5px;font-weight:700;margin-bottom:18px;letter-spacing:.04em;}
.footer-list{list-style:none;padding:0;margin:0;}
.footer-list li{margin-bottom:11px;}
.footer-list a{color:rgba(239,237,232,.68);font-size:14.6px;transition:color .2s ease,padding-left .2s ease;}
.footer-list a:hover{color:#7FD6C3;padding-left:4px;}
.footer-contact li{font-size:14.6px;color:rgba(239,237,232,.68);margin-bottom:12px;display:flex;gap:10px;}
.footer-contact i{color:#7FD6C3;margin-top:5px;font-size:13px;}
.footer-bottom{
  margin-top:56px;border-top:1px solid rgba(255,255,255,.10);
  padding:22px 0;display:flex;flex-wrap:wrap;gap:14px;justify-content:space-between;
  font-size:13.5px;color:rgba(239,237,232,.48);
}

/* ---------- Offcanvas ---------- */
.offcanvas{background:var(--surface);}
.offcanvas-header{border-bottom:1px solid var(--border);padding:18px 22px;}
.offcanvas-title{font-size:16.5px;font-weight:800;color:var(--ink);}
.offcanvas-body{padding:20px 22px 28px;}
.mobile-nav{list-style:none;padding:0;margin:0 0 24px;}
.mobile-nav li{border-bottom:1px solid var(--border);}
.mobile-nav a{
  display:flex;align-items:center;justify-content:space-between;
  padding:16px 4px;font-size:17px;font-weight:600;color:var(--ink-2);
}
.mobile-nav a.active{color:var(--brand-dark);}
.mobile-nav a i{font-size:13px;color:var(--muted);}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .nav-links a{padding:9px 11px;font-size:15px;}
}
@media (max-width:991.98px){
  body{font-size:16.5px;}
  .section{padding:64px 0;}
  .section-tight{padding:52px 0;}
  .nav-links,.nav-cta{display:none;}
  .nav-toggle{display:inline-flex;}
  .nav-inner{height:60px;}
  .hero{min-height:auto;background-image:
    linear-gradient(180deg,rgba(23,26,28,.93) 0%,rgba(23,26,28,.86) 60%,rgba(23,26,28,.92) 100%),
    url('/assets/images/backpic/back-1.webp');}
  .hero-inner{padding:68px 0;max-width:100%;}
  .section-head{margin-bottom:38px;}
  .value-item{border-right:none;border-bottom:1px solid rgba(255,255,255,.08);padding:26px 20px;}
  .value-item:last-child{border-bottom:none;}
  .bento{grid-template-columns:repeat(2,1fr);gap:20px;}
  .bento-large{grid-column:span 2;grid-row:auto;}
  .steps{grid-template-columns:repeat(2,1fr);gap:20px;}
  .case-block{grid-template-columns:1fr;gap:28px;margin-bottom:56px;}
  .case-block.reverse .case-media{order:0;}
  .price-grid{grid-template-columns:1fr;gap:22px;}
  .cta-band{padding:40px 32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px;}
}
@media (max-width:575.98px){
  body{font-size:16px;}
  .section{padding:48px 0;}
  .section-tight{padding:42px 0;}
  .container{padding-left:16px;padding-right:16px;}
  .brand-sub{display:none;}
  .hero h1{font-size:30px;}
  .hero-sub{font-size:16px;}
  .hero-actions{flex-direction:column;align-items:stretch;}
  .hero-actions .btn-brand,.hero-actions .btn-light-ghost{width:100%;}
  .hero-tags{gap:10px;}
  .hero-tag{padding:9px 13px;}
  .hero-tag b{font-size:17px;}
  .bento{grid-template-columns:1fr;}
  .bento-large{grid-column:span 1;}
  .bento-large .bento-media{height:180px;}
  .steps{grid-template-columns:1fr;}
  .metrics{gap:20px;}
  .metric b{font-size:22px;}
  .cta-band{padding:32px 22px;border-radius:14px;}
  .cta-actions{width:100%;flex-direction:column;}
  .cta-actions .btn-brand,.cta-actions .btn-light-ghost{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:32px;}
  .faq-item .accordion-button{font-size:16px;padding:18px 20px;}
  .faq-item .accordion-body{padding:2px 20px 22px 40px;font-size:15.4px;}
}

/* roulang page: article */
:root{
  --ink:#171A1C;
  --brand:#137C6B;
  --brand-dark:#0F6355;
  --brand-soft:#E4F1EE;
  --accent:#F26A3D;
  --accent-soft:#FDEDE6;
  --paper:#F7F4EE;
  --surface:#FFFFFF;
  --line:#E2DED6;
  --text:#242827;
  --muted:#6B6F6C;
  --radius-card:14px;
  --radius-btn:10px;
  --shadow-sm:0 10px 30px rgba(23,26,28,.06);
  --shadow-lg:0 16px 40px rgba(23,26,28,.10);
  --space-section:88px;
  --gap-card:28px;
  --font-cn:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei","Hiragino Sans GB",sans-serif;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:17px;
  line-height:1.85;
  letter-spacing:.02em;
  color:var(--text);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--brand);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--brand-dark);}
h1,h2,h3,h4,h5{margin:0;font-weight:800;color:var(--ink);letter-spacing:.01em;line-height:1.35;}
p{margin:0 0 1.15em;}
ul,ol{margin:0 0 1.15em;padding-left:1.35em;}
button,input,textarea,select{font-family:inherit;font-size:inherit;}
:focus-visible{outline:3px solid rgba(19,124,107,.35);outline-offset:2px;}
.container{
  width:100%;
  max-width:1240px;
  margin:0 auto;
  padding-left:20px;
  padding-right:20px;
}
.section{padding:var(--space-section) 0;}
.section-tight{padding:56px 0;}
.section-head{max-width:760px;margin-bottom:44px;}
.section-head h2{font-size:clamp(28px,3vw,38px);margin-bottom:14px;}
.section-head p{color:var(--muted);font-size:16px;margin:0;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;letter-spacing:.16em;text-transform:uppercase;
  color:var(--brand);margin-bottom:14px;
}
.eyebrow::before{content:"";width:26px;height:2px;background:var(--accent);border-radius:2px;}

/* ---------- 按钮 ---------- */
.btn-brand,.btn-ghost,.btn-soft{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:var(--radius-btn);
  font-weight:700;font-size:15.5px;letter-spacing:.03em;
  border:1px solid transparent;cursor:pointer;
  transition:transform .2s ease,background .2s ease,color .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.btn-brand{background:var(--brand);color:#fff;box-shadow:0 10px 24px rgba(19,124,107,.22);}
.btn-brand:hover{background:var(--brand-dark);color:#fff;transform:translateY(-2px);box-shadow:0 14px 30px rgba(19,124,107,.28);}
.btn-brand:focus-visible{outline:3px solid rgba(19,124,107,.35);outline-offset:2px;}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--ink);}
.btn-ghost:hover{background:var(--ink);color:#fff;transform:translateY(-2px);}
.btn-soft{background:var(--surface);color:var(--brand);border-color:var(--line);box-shadow:var(--shadow-sm);}
.btn-soft:hover{color:var(--brand-dark);border-color:var(--brand);transform:translateY(-2px);}
.btn-sm{padding:9px 18px;font-size:14px;border-radius:8px;}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-weight:700;color:var(--brand);}
.link-arrow i{transition:transform .2s ease;}
.link-arrow:hover i{transform:translateX(4px);}

/* ---------- 徽章 ---------- */
.badge-soft{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 13px;border-radius:999px;
  font-size:13px;font-weight:700;letter-spacing:.04em;
  background:var(--brand-soft);color:var(--brand-dark);
}
.badge-accent{background:var(--accent-soft);color:#C4501F;}
.badge-grey{background:#EFEDE8;color:#5A5E5B;}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(255,255,255,.96);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
}
.nav-inner{
  height:72px;display:flex;align-items:center;justify-content:space-between;gap:24px;
}
.brand{display:inline-flex;align-items:center;gap:12px;color:var(--ink);}
.brand:hover{color:var(--ink);}
.brand-mark{
  width:40px;height:40px;flex:0 0 40px;border-radius:12px;
  background:linear-gradient(135deg,var(--brand) 0%,#1FA189 100%);
  color:#fff;font-weight:800;font-size:19px;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 8px 18px rgba(19,124,107,.25);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-name{font-size:17px;font-weight:800;color:var(--ink);letter-spacing:.02em;}
.brand-sub{font-size:10px;letter-spacing:.18em;color:var(--muted);font-weight:600;}
.nav-links{display:flex;align-items:center;gap:6px;list-style:none;margin:0;padding:0;}
.nav-links a{
  display:inline-block;padding:9px 14px;border-radius:8px;
  font-size:15px;font-weight:600;color:#3A3F3D;position:relative;
  transition:color .2s ease,background .2s ease;
}
.nav-links a:hover{color:var(--brand-dark);background:var(--brand-soft);}
.nav-links a.active{color:var(--brand-dark);background:var(--brand-soft);}
.nav-links a.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:3px;height:2px;
  background:var(--brand);border-radius:2px;
}
.nav-cta{display:flex;align-items:center;gap:12px;}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:10px;
  border:1px solid var(--line);background:var(--surface);color:var(--ink);
  font-size:18px;align-items:center;justify-content:center;
}
.offcanvas{background:var(--surface);}
.offcanvas-header{border-bottom:1px solid var(--line);padding:18px 22px;}
.offcanvas-body{padding:22px;}
.mobile-nav{list-style:none;margin:0 0 26px;padding:0;}
.mobile-nav li{border-bottom:1px solid var(--line);}
.mobile-nav a{
  display:flex;align-items:center;justify-content:space-between;
  padding:16px 4px;font-size:17px;font-weight:700;color:var(--ink);
}
.mobile-nav a:hover{color:var(--brand);}
.mobile-nav a.active{color:var(--brand);}

/* ---------- 文章头部 ---------- */
.article-top{
  background:
    linear-gradient(90deg,rgba(23,26,28,.92) 0%,rgba(23,26,28,.72) 52%,rgba(23,26,28,.44) 100%),
    url("/assets/images/backpic/back-1.webp") center/cover no-repeat;
  color:#fff;padding:64px 0 72px;
}
.article-top .container{max-width:1080px;}
.crumbs{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  font-size:14px;color:rgba(255,255,255,.72);margin-bottom:26px;
}
.crumbs a{color:rgba(255,255,255,.86);font-weight:600;}
.crumbs a:hover{color:#fff;text-decoration:underline;}
.crumbs span.sep{opacity:.5;}
.crumbs .current{color:rgba(255,255,255,.7);}
.article-top .badge-soft{background:rgba(255,255,255,.14);color:#EDF6F4;}
.article-h1{
  font-size:clamp(30px,4vw,46px);
  color:#fff;margin:20px 0 20px;line-height:1.32;
  max-width:900px;
}
.article-meta{
  display:flex;flex-wrap:wrap;gap:12px 26px;
  font-size:14.5px;color:rgba(255,255,255,.78);
}
.article-meta i{color:var(--accent);margin-right:7px;}
.article-lead{
  margin-top:24px;max-width:760px;
  font-size:17px;color:rgba(255,255,255,.84);
}

/* ---------- 正文布局 ---------- */
.article-wrap{padding:64px 0 80px;}
.article-grid{
  display:grid;grid-template-columns:minmax(0,1fr) 318px;
  gap:52px;align-items:start;
}
.article-main{min-width:0;}
.cover-box{
  border-radius:var(--radius-card);overflow:hidden;
  border:1px solid var(--line);background:var(--surface);
  box-shadow:var(--shadow-sm);margin-bottom:40px;
}
.cover-box img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.article-body{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-sm);
  padding:44px 46px 40px;
  font-size:17.5px;
  line-height:1.9;
  color:var(--text);
}
.article-body h2{
  font-size:clamp(23px,2.4vw,30px);
  margin:2.1em 0 .7em;padding-left:16px;position:relative;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:5px;
  border-radius:4px;background:linear-gradient(180deg,var(--brand),var(--accent));
}
.article-body h2:first-child{margin-top:0;}
.article-body h3{font-size:21px;margin:1.8em 0 .6em;color:var(--ink);}
.article-body p{margin:0 0 1.25em;}
.article-body ul,.article-body ol{margin:0 0 1.3em;padding-left:1.4em;}
.article-body li{margin-bottom:.55em;}
.article-body li::marker{color:var(--brand);font-weight:700;}
.article-body blockquote{
  margin:1.6em 0;padding:20px 26px;
  background:var(--paper);border-left:4px solid var(--brand);
  border-radius:0 10px 10px 0;color:#39403E;font-size:16.5px;
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{border-radius:12px;margin:1.6em 0;border:1px solid var(--line);}
.article-body figure{margin:1.8em 0;}
.article-body figcaption{font-size:14px;color:var(--muted);text-align:center;margin-top:10px;}
.article-body table{
  width:100%;border-collapse:collapse;margin:1.7em 0;font-size:15.5px;
  border:1px solid var(--line);border-radius:12px;overflow:hidden;
}
.article-body th,.article-body td{padding:12px 16px;border-bottom:1px solid var(--line);text-align:left;}
.article-body th{background:var(--brand-soft);color:var(--brand-dark);font-weight:700;}
.article-body tr:last-child td{border-bottom:0;}
.article-body a{text-decoration:underline;text-underline-offset:3px;}
.article-body strong{color:var(--ink);font-weight:700;}

.notice-box{
  margin-bottom:32px;padding:20px 24px;
  background:var(--brand-soft);border-radius:var(--radius-card);
  border:1px solid #CFE5E0;font-size:15.5px;color:#1D4A42;
}
.notice-box i{color:var(--brand);margin-right:8px;}

.empty-box{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-sm);padding:60px 40px;text-align:center;
}
.empty-box h2{font-size:26px;margin-bottom:14px;}
.empty-box p{color:var(--muted);margin-bottom:26px;}

/* ---------- 侧栏 ---------- */
.article-side{position:sticky;top:104px;display:flex;flex-direction:column;gap:24px;}
.side-card{
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-card);box-shadow:var(--shadow-sm);
  padding:26px 24px;
}
.side-card h3{font-size:18px;margin-bottom:8px;}
.side-card .side-sub{font-size:14px;color:var(--muted);margin-bottom:18px;}
.side-list{list-style:none;margin:0;padding:0;}
.side-list li{border-bottom:1px dashed var(--line);padding:14px 0;}
.side-list li:last-child{border-bottom:0;padding-bottom:0;}
.side-list li:first-child{padding-top:0;}
.side-list a{
  display:flex;gap:12px;align-items:flex-start;
  font-size:15.5px;font-weight:700;color:var(--ink);line-height:1.6;
}
.side-list a:hover{color:var(--brand);}
.side-index{
  flex:0 0 26px;height:26px;border-radius:8px;
  background:var(--brand-soft);color:var(--brand-dark);
  font-size:12.5px;font-weight:800;
  display:flex;align-items:center;justify-content:center;
}
.side-list .side-desc{display:block;font-size:13.5px;font-weight:400;color:var(--muted);margin-top:4px;}
.side-cta{background:linear-gradient(160deg,#0F6355 0%,#137C6B 62%,#1FA189 100%);border:0;color:#fff;}
.side-cta h3{color:#fff;}
.side-cta p{color:rgba(255,255,255,.85);font-size:14.5px;margin-bottom:18px;}
.side-cta .btn-soft{background:#fff;color:var(--brand-dark);border-color:#fff;width:100%;}
.side-tags{display:flex;flex-wrap:wrap;gap:10px;}

/* ---------- 相关推荐 ---------- */
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:var(--gap-card);}
.related-card{
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-card);overflow:hidden;
  box-shadow:var(--shadow-sm);display:flex;flex-direction:column;
  transition:transform .25s ease,box-shadow .25s ease;
}
.related-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);}
.related-thumb{overflow:hidden;}
.related-thumb img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .35s ease;}
.related-card:hover .related-thumb img{transform:scale(1.03);}
.related-body{padding:22px 22px 24px;display:flex;flex-direction:column;gap:12px;flex:1;}
.related-body h3{font-size:18px;line-height:1.5;}
.related-body p{font-size:14.5px;color:var(--muted);margin:0;flex:1;line-height:1.75;}

/* ---------- CTA ---------- */
.cta-band{
  background:linear-gradient(120deg,#12574C 0%,#137C6B 55%,#1FA189 100%);
  border-radius:18px;padding:52px 48px;color:#fff;
  display:grid;grid-template-columns:minmax(0,1.5fr) minmax(0,1fr);
  gap:36px;align-items:center;
  box-shadow:0 20px 44px rgba(19,124,107,.22);
}
.cta-band h2{color:#fff;font-size:clamp(24px,2.6vw,32px);margin-bottom:14px;}
.cta-band p{color:rgba(255,255,255,.86);margin:0;font-size:16px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:flex-end;}
.cta-actions .btn-light-solid{background:#fff;color:var(--brand-dark);border-color:#fff;}
.cta-actions .btn-light-solid:hover{background:#F0FBF8;color:var(--brand-dark);}
.cta-actions .btn-outline-light2{background:transparent;color:#fff;border-color:rgba(255,255,255,.6);}
.cta-actions .btn-outline-light2:hover{background:rgba(255,255,255,.14);color:#fff;border-color:#fff;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:#B9BEBB;padding:72px 0 28px;font-size:15px;}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1.3fr;gap:44px;
}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:20px;}
.footer-brand .brand-name{color:#fff;}
.footer-brand .brand-sub{color:#7E847F;}
.footer-desc{color:#9BA19D;font-size:14.5px;line-height:1.85;margin-bottom:20px;}
.footer-badges{display:flex;flex-wrap:wrap;gap:10px;}
.footer-badges span{
  font-size:12.5px;padding:5px 12px;border-radius:999px;
  background:rgba(255,255,255,.08);color:#D3D8D5;border:1px solid rgba(255,255,255,.12);
}
.site-footer h4{color:#fff;font-size:16px;margin-bottom:18px;}
.footer-list{list-style:none;margin:0;padding:0;}
.footer-list li{margin-bottom:12px;}
.footer-list a{color:#B9BEBB;font-size:14.5px;}
.footer-list a:hover{color:#fff;}
.footer-contact li{display:flex;gap:10px;align-items:flex-start;color:#B9BEBB;font-size:14.5px;}
.footer-contact i{color:var(--accent);margin-top:5px;}
.footer-bottom{
  margin-top:52px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  font-size:13.5px;color:#8B918D;
}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .nav-links a{padding:9px 11px;font-size:14.5px;}
  .article-grid{gap:40px;}
}
@media (max-width:991.98px){
  :root{--space-section:64px;}
  .nav-links,.nav-cta{display:none;}
  .nav-toggle{display:flex;}
  .nav-inner{height:64px;}
  .article-grid{grid-template-columns:minmax(0,1fr);}
  .article-side{position:static;margin-top:40px;}
  .article-top{padding:48px 0 56px;}
  .article-body{padding:32px 26px 28px;}
  .cta-band{grid-template-columns:1fr;padding:40px 30px;}
  .cta-actions{justify-content:flex-start;}
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:36px;}
}
@media (max-width:575.98px){
  :root{--space-section:48px;}
  body{font-size:16px;}
  .article-h1{font-size:29px;}
  .article-meta{font-size:13.5px;gap:10px 18px;}
  .article-wrap{padding:40px 0 56px;}
  .article-body{font-size:16px;padding:26px 20px 24px;border-radius:12px;}
  .cover-box{margin-bottom:26px;}
  .related-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;}
  .cta-band{padding:32px 22px;}
  .cta-actions .btn-brand,.cta-actions .btn-ghost{width:100%;}
  .btn-brand,.btn-ghost{width:100%;}
  .nav-cta .btn-sm{width:auto;}
}

/* roulang page: category1 */
:root{
  --brand:#137C6B;
  --brand-dark:#0E6154;
  --brand-soft:#E6F2EF;
  --ink:#171A1C;
  --accent:#F26A3D;
  --accent-soft:#FDEDE6;
  --paper:#F7F4EE;
  --surface:#FFFFFF;
  --line:#E2DED6;
  --text:#242827;
  --muted:#6B6F6C;
  --radius:14px;
  --radius-sm:10px;
  --shadow:0 10px 30px rgba(23,26,28,.06);
  --shadow-hover:0 16px 40px rgba(23,26,28,.10);
  --sec-y:92px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei","Hiragino Sans GB",sans-serif;
  font-size:17px;
  line-height:1.8;
  letter-spacing:.02em;
  color:var(--text);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--brand);text-decoration:none;transition:color .25s ease}
a:hover{color:var(--brand-dark)}
p{margin:0 0 1.2em}
h1,h2,h3,h4{color:var(--ink);font-weight:800;line-height:1.28;margin:0 0 .6em;letter-spacing:.01em}
h1{font-size:clamp(30px,4vw,50px)}
h2{font-size:clamp(24px,3vw,38px)}
h3{font-size:clamp(19px,2vw,25px);font-weight:700}
ul{margin:0;padding:0;list-style:none}
.container{max-width:1240px;padding-left:20px;padding-right:20px}
section{scroll-margin-top:90px}
.sec{padding:var(--sec-y) 0}
.sec-tight{padding:64px 0}
.sec-alt{background:var(--surface)}
.sec-ink{background:var(--ink);color:#E9E7E2}
.sec-ink h2,.sec-ink h3,.sec-ink h4{color:#fff}
.sec-head{max-width:760px;margin-bottom:44px}
.sec-head.center{margin-left:auto;margin-right:auto;text-align:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;letter-spacing:.14em;
  color:var(--brand);text-transform:uppercase;
  background:var(--brand-soft);border-radius:999px;padding:6px 14px;margin-bottom:16px;
}
.sec-lead{color:var(--muted);font-size:17px;margin:0}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(255,255,255,.94);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;height:72px}
.brand{display:flex;align-items:center;gap:12px;color:var(--ink)}
.brand:hover{color:var(--ink)}
.brand-mark{
  width:40px;height:40px;flex:0 0 40px;border-radius:12px;
  background:linear-gradient(135deg,var(--brand),var(--brand-dark));
  color:#fff;font-weight:800;font-size:20px;display:flex;align-items:center;justify-content:center;
  box-shadow:0 8px 18px rgba(19,124,107,.28);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-name{font-size:17px;font-weight:800;color:var(--ink);white-space:nowrap}
.brand-sub{font-size:10px;letter-spacing:.18em;color:var(--muted);font-weight:600}
.nav-links{display:flex;align-items:center;gap:4px;margin:0}
.nav-links a{
  display:block;padding:9px 14px;border-radius:999px;
  font-size:15px;font-weight:600;color:#3B403E;white-space:nowrap;
  transition:.25s;
}
.nav-links a:hover{background:var(--brand-soft);color:var(--brand-dark)}
.nav-links a.active{background:var(--brand-soft);color:var(--brand-dark);box-shadow:inset 0 -2px 0 var(--brand)}
.nav-cta{display:flex;align-items:center;gap:12px}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:10px;
  background:#fff;color:var(--ink);font-size:18px;align-items:center;justify-content:center;
}
.nav-toggle:hover{border-color:var(--brand);color:var(--brand)}
.btn-brand{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:var(--brand);border:1px solid var(--brand);color:#fff;
  border-radius:var(--radius-sm);padding:12px 24px;font-weight:700;font-size:16px;line-height:1.2;
  transition:all .25s ease;cursor:pointer;
}
.btn-brand:hover{background:var(--brand-dark);border-color:var(--brand-dark);color:#fff;transform:translateY(-2px);box-shadow:var(--shadow)}
.btn-brand:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(19,124,107,.3)}
.btn-brand.btn-sm{padding:10px 18px;font-size:15px}
.btn-brand.btn-lg{padding:15px 32px;font-size:17px}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:transparent;border:1px solid var(--ink);color:var(--ink);
  border-radius:var(--radius-sm);padding:12px 24px;font-weight:700;font-size:16px;line-height:1.2;
  transition:all .25s ease;cursor:pointer;
}
.btn-ghost:hover{background:var(--ink);color:#fff;transform:translateY(-2px)}
.btn-ghost:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(23,26,28,.18)}
.btn-light{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:#fff;border:1px solid #fff;color:var(--brand-dark);
  border-radius:var(--radius-sm);padding:12px 24px;font-weight:700;font-size:16px;transition:all .25s ease;
}
.btn-light:hover{background:var(--brand-soft);color:var(--brand-dark);transform:translateY(-2px)}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-weight:700;color:var(--brand)}
.link-arrow i{transition:transform .25s ease}
.link-arrow:hover i{transform:translateX(5px)}

/* ---------- mobile nav ---------- */
.mobile-nav{width:320px;max-width:88vw;background:var(--paper)}
.mobile-nav .offcanvas-header{border-bottom:1px solid var(--line);padding:18px 20px}
.mobile-nav .brand-name{font-size:16px}
.mobile-links{display:flex;flex-direction:column;gap:6px;padding:18px 0}
.mobile-links a{
  display:block;padding:14px 18px;border-radius:12px;font-size:17px;font-weight:700;color:var(--ink);
  background:#fff;border:1px solid var(--line);
}
.mobile-links a.active{background:var(--brand-soft);border-color:var(--brand);color:var(--brand-dark)}
.mobile-links a:hover{border-color:var(--brand);color:var(--brand-dark)}
.mobile-note{font-size:13px;color:var(--muted);line-height:1.7}

/* ---------- hero ---------- */
.cat-hero{
  position:relative;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
  color:#fff;overflow:hidden;
}
.cat-hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(23,26,28,.94) 0%,rgba(23,26,28,.78) 46%,rgba(23,26,28,.42) 100%);
}
.cat-hero .container{position:relative;z-index:2;padding-top:96px;padding-bottom:88px}
.cat-hero h1{color:#fff;max-width:900px}
.cat-hero .lead{font-size:18px;color:rgba(255,255,255,.86);max-width:660px;margin-bottom:28px}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;
  background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.28);
  color:#fff;border-radius:999px;padding:6px 16px;font-size:13px;font-weight:700;
  letter-spacing:.1em;margin-bottom:20px;
}
.hero-tag i{color:var(--accent)}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px}
.hero-stats{display:flex;flex-wrap:wrap;gap:14px}
.hero-stats .stat{
  background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.2);
  border-radius:12px;padding:12px 18px;min-width:150px;
}
.hero-stats .stat b{display:block;font-size:22px;font-weight:800;color:#fff;line-height:1.3}
.hero-stats .stat span{font-size:13px;color:rgba(255,255,255,.75)}
.breadcrumb-bar{background:var(--surface);border-bottom:1px solid var(--line)}
.breadcrumb-bar .container{display:flex;align-items:center;gap:8px;font-size:13.5px;color:var(--muted);padding-top:14px;padding-bottom:14px}
.breadcrumb-bar a{color:var(--muted);font-weight:600}
.breadcrumb-bar a:hover{color:var(--brand)}

/* ---------- bento ---------- */
.bento{display:grid;grid-template-columns:repeat(6,1fr);gap:24px}
.bento-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:28px;box-shadow:var(--shadow);transition:all .28s ease;position:relative;overflow:hidden;
  display:flex;flex-direction:column;
}
.bento-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:#D3CEC4}
.bento-lg{grid-column:span 3;grid-row:span 2;padding:0;justify-content:flex-end;}
.bento-lg .bento-media{position:relative;height:210px;overflow:hidden}
.bento-lg .bento-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.bento-lg:hover .bento-media img{transform:scale(1.04)}
.bento-lg .bento-body{padding:26px 28px 30px}
.bento-md{grid-column:span 3}
.bento-sm{grid-column:span 2}
.bento-icon{
  width:46px;height:46px;border-radius:12px;background:var(--brand-soft);color:var(--brand-dark);
  display:flex;align-items:center;justify-content:center;font-size:19px;margin-bottom:16px;
}
.bento-card h3{margin-bottom:10px;font-size:21px}
.bento-card p{color:var(--muted);font-size:15.5px;margin-bottom:14px}
.bento-list li{
  font-size:14.5px;color:#3B403E;padding:6px 0 6px 22px;position:relative;line-height:1.65;
}
.bento-list li::before{
  content:"";position:absolute;left:0;top:14px;width:10px;height:2px;border-radius:2px;background:var(--brand);
}
.tag{
  display:inline-flex;align-items:center;gap:6px;border-radius:999px;
  padding:4px 12px;font-size:12.5px;font-weight:700;line-height:1.6;
}
.tag-green{background:var(--brand-soft);color:var(--brand-dark)}
.tag-orange{background:var(--accent-soft);color:#C24A22}
.tag-grey{background:#EFEDE8;color:#5C605D}
.bento-tags{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:14px}

/* ---------- feature strip ---------- */
.feature-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin-top:52px}
.strip-item{
  background:var(--surface);border:1px solid var(--line);border-left:3px solid var(--brand);
  border-radius:var(--radius);padding:22px 24px;box-shadow:var(--shadow);
}
.strip-item .num{font-size:13px;font-weight:800;letter-spacing:.14em;color:var(--accent)}
.strip-item h4{font-size:17px;margin:8px 0 6px}
.strip-item p{font-size:14.5px;color:var(--muted);margin:0}

/* ---------- spec table ---------- */
.table-wrap{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;box-shadow:var(--shadow);
}
.spec-table{width:100%;border-collapse:collapse;margin:0}
.spec-table th{
  background:var(--brand-dark);color:#fff;font-size:15px;font-weight:700;
  padding:18px 20px;text-align:left;vertical-align:middle;border:none;
}
.spec-table th:first-child{background:#0B4C42}
.spec-table td{
  padding:16px 20px;font-size:15.5px;color:var(--text);
  border-top:1px solid var(--line);vertical-align:middle;
}
.spec-table tbody tr:nth-child(even) td{background:#FBFAF7}
.spec-table td.row-head{font-weight:700;color:var(--ink);background:#F7F4EE}
.spec-table tbody tr:nth-child(even) td.row-head{background:#F2EEE6}
.spec-table tbody tr:hover td{background:#F1F6F4}
.spec-table tbody tr:hover td.row-head{background:#E8F1EE}
.yes{color:var(--brand-dark);font-weight:700}
.opt{color:#B0562C;font-weight:700}
.no{color:var(--muted)}
.spec-note{font-size:13.5px;color:var(--muted);margin-top:14px}

/* ---------- flow ---------- */
.flow{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;position:relative}
.flow-item{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:28px 24px;box-shadow:var(--shadow);transition:all .28s ease;
}
.flow-item:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.flow-item .step{
  width:38px;height:38px;border-radius:50%;background:var(--ink);color:#fff;
  display:flex;align-items:center;justify-content:center;font-weight:800;font-size:15px;margin-bottom:16px;
}
.flow-item h3{font-size:19px;margin-bottom:8px}
.flow-item p{font-size:14.8px;color:var(--muted);margin-bottom:10px}
.flow-item .meta{font-size:13px;color:var(--brand-dark);font-weight:700}

/* ---------- split image ---------- */
.split{display:grid;grid-template-columns:1.05fr 1fr;gap:48px;align-items:center}
.split-media{border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow)}
.split-media img{width:100%;height:100%;object-fit:cover;aspect-ratio:16/11}
.check-list li{
  padding:10px 0 10px 34px;position:relative;font-size:16px;color:#2F3432;border-bottom:1px dashed var(--line);
}
.check-list li:last-child{border-bottom:none}
.check-list li::before{
  content:"\f00c";font-family:"Font Awesome 6 Free";font-weight:900;
  position:absolute;left:0;top:12px;color:var(--brand);font-size:14px;
}

/* ---------- faq ---------- */
.faq-list{display:flex;flex-direction:column;gap:14px;max-width:920px;margin:0 auto}
.faq-item{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 24px;background:transparent;border:none;text-align:left;
  font-size:17px;font-weight:700;color:var(--ink);cursor:pointer;position:relative;
}
.faq-q::before{content:"";position:absolute;left:0;top:16px;bottom:16px;width:4px;border-radius:0 4px 4px 0;background:var(--brand);opacity:0;transition:opacity .25s}
.faq-q[aria-expanded="true"]::before{opacity:1}
.faq-q:hover{color:var(--brand-dark)}
.faq-q:focus-visible{outline:none;box-shadow:inset 0 0 0 2px rgba(19,124,107,.35)}
.faq-q .sign{
  flex:0 0 26px;width:26px;height:26px;border-radius:50%;
  background:var(--brand-soft);color:var(--brand-dark);
  display:flex;align-items:center;justify-content:center;font-size:16px;font-weight:800;line-height:1;
}
.faq-q .sign i{transition:transform .3s ease}
.faq-q[aria-expanded="true"] .sign{background:var(--brand);color:#fff}
.faq-q[aria-expanded="true"] .sign i{transform:rotate(135deg)}
.faq-a{padding:0 24px 22px 24px;color:#3B403E;font-size:15.8px;line-height:1.85}
.faq-a p:last-child{margin-bottom:0}

/* ---------- cta ---------- */
.cta-band{
  background:linear-gradient(120deg,#137C6B 0%,#0E6154 60%,#12564C 100%);
  color:#fff;border-radius:20px;padding:52px;position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;right:-90px;top:-90px;width:320px;height:320px;border-radius:50%;
  background:rgba(242,106,61,.18);
}
.cta-band h2{color:#fff;position:relative;z-index:1}
.cta-band p{color:rgba(255,255,255,.85);position:relative;z-index:1;max-width:640px}
.cta-band .actions{display:flex;flex-wrap:wrap;gap:14px;position:relative;z-index:1;margin-top:24px}
.form-panel{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:32px;box-shadow:var(--shadow);
}
.form-label{font-size:14.5px;font-weight:700;color:var(--ink);margin-bottom:6px}
.form-control,.form-select{
  height:48px;border-radius:var(--radius-sm);border:1px solid var(--line);
  font-size:15.5px;color:var(--text);background:#FDFCFA;
}
textarea.form-control{height:auto;min-height:110px;padding-top:12px}
.form-control:focus,.form-select:focus{
  border-color:var(--brand);box-shadow:0 0 0 3px rgba(19,124,107,.15);background:#fff;
}
.form-note{font-size:12.8px;color:var(--muted);margin:14px 0 0}
.info-item{display:flex;gap:14px;padding:16px 0;border-bottom:1px solid var(--line)}
.info-item:last-child{border-bottom:none}
.info-item i{
  flex:0 0 40px;width:40px;height:40px;border-radius:12px;background:var(--brand-soft);
  color:var(--brand-dark);display:flex;align-items:center;justify-content:center;font-size:16px;
}
.info-item b{display:block;font-size:15.5px;color:var(--ink)}
.info-item span{font-size:14.2px;color:var(--muted)}

/* ---------- footer ---------- */
.site-footer{background:var(--ink);color:#C9C7C2;padding:72px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.3fr;gap:40px}
.site-footer h4{color:#fff;font-size:16px;margin-bottom:18px;font-weight:700}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:18px}
.footer-brand .brand-name{color:#fff}
.footer-brand .brand-sub{color:#8E948F}
.footer-desc{font-size:14.6px;line-height:1.85;color:#A9ADA8;max-width:420px}
.footer-badges{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.footer-badges span{
  font-size:12.5px;color:#D6D4CF;background:rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.14);border-radius:999px;padding:5px 12px;
}
.footer-list li{margin-bottom:11px}
.footer-list a{color:#B9BDB8;font-size:14.6px}
.footer-list a:hover{color:#fff}
.footer-contact li{display:flex;gap:10px;color:#A9ADA8;font-size:14.3px;line-height:1.7}
.footer-contact i{color:var(--accent);margin-top:5px}
.footer-bottom{
  margin-top:56px;border-top:1px solid rgba(255,255,255,.12);
  padding:22px 0;display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:13.4px;color:#8E948F;
}

/* ---------- responsive ---------- */
@media (max-width:1199.98px){
  .nav-links a{padding:9px 10px;font-size:14.2px}
  .brand-sub{display:none}
}
@media (max-width:991.98px){
  :root{--sec-y:64px}
  .nav-links,.nav-cta .btn-brand{display:none}
  .nav-toggle{display:flex}
  .nav-inner{height:64px}
  .bento{grid-template-columns:repeat(4,1fr);gap:20px}
  .bento-lg{grid-column:span 4;grid-row:auto}
  .bento-md{grid-column:span 2}
  .bento-sm{grid-column:span 2}
  .feature-strip{grid-template-columns:repeat(2,1fr);gap:20px}
  .flow{grid-template-columns:repeat(2,1fr);gap:20px}
  .split{grid-template-columns:1fr;gap:32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .cta-band{padding:36px 28px}
  .cat-hero .container{padding-top:72px;padding-bottom:64px}
}
@media (max-width:767.98px){
  body{font-size:16px}
  :root{--sec-y:52px}
  .bento{grid-template-columns:1fr}
  .bento-lg,.bento-md,.bento-sm{grid-column:span 1}
  .feature-strip,.flow{grid-template-columns:1fr}
  .spec-table thead{display:none}
  .spec-table,.spec-table tbody,.spec-table tr,.spec-table td{display:block;width:100%}
  .spec-table tr{border-top:1px solid var(--line);padding:6px 0}
  .spec-table tr:first-child{border-top:none}
  .spec-table td{border:none;padding:9px 20px;background:transparent!important}
  .spec-table td::before{
    content:attr(data-label);display:block;font-size:12.5px;font-weight:700;
    color:var(--muted);letter-spacing:.06em;margin-bottom:2px;
  }
  .spec-table td.row-head{background:#F7F4EE!important;font-size:16px;padding-top:14px;padding-bottom:10px}
  .spec-table td.row-head::before{display:none}
  .hero-actions .btn-brand,.hero-actions .btn-ghost{width:100%}
  .hero-stats .stat{flex:1 1 calc(50% - 7px);min-width:0}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column}
  .cta-band{border-radius:16px}
  .form-panel{padding:24px}
  .sec-head{margin-bottom:32px}
}
@media (max-width:520px){
  .brand-name{font-size:15px;white-space:normal}
  .brand-sub{display:none}
  .brand-mark{width:36px;height:36px;flex:0 0 36px;font-size:18px}
  .hero-stats .stat{flex:1 1 100%}
  .cat-hero::before{background:linear-gradient(180deg,rgba(23,26,28,.94),rgba(23,26,28,.88))}
}

/* roulang page: category2 */
:root{
  --brand:#137C6B;
  --brand-dark:#0F6559;
  --brand-soft:#E4F1EE;
  --ink:#171A1C;
  --ink-2:#242827;
  --muted:#6B6F6C;
  --paper:#F7F4EE;
  --surface:#FFFFFF;
  --line:#E2DED6;
  --accent:#F26A3D;
  --accent-soft:#FDEDE7;
  --gray-soft:#F1EFEA;
  --radius-card:14px;
  --radius-btn:10px;
  --radius-pill:999px;
  --radius-input:10px;
  --shadow:0 10px 30px rgba(23,26,28,.06);
  --shadow-hover:0 16px 40px rgba(23,26,28,.10);
  --section-y:88px;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei","Hiragino Sans GB",sans-serif;
  background:var(--paper);
  color:var(--ink-2);
  font-size:17px;
  line-height:1.82;
  letter-spacing:.02em;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block;}
a{color:inherit;text-decoration:none;transition:color .2s ease,opacity .2s ease;}
a:hover{color:var(--brand);}
button,input,select,textarea{font-family:inherit;font-size:inherit;}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:800;letter-spacing:.01em;line-height:1.28;}
p{margin:0 0 1.15em;}
p:last-child{margin-bottom:0;}
ul{margin:0;padding:0;list-style:none;}
.container{max-width:1240px;padding-left:20px;padding-right:20px;margin:0 auto;}

/* ============ 按钮 / 徽章 ============ */
.btn-brand{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:var(--brand);color:#fff;border:1px solid var(--brand);
  border-radius:var(--radius-btn);padding:13px 26px;font-weight:700;font-size:16px;
  transition:transform .2s ease,background .2s ease,box-shadow .2s ease;
}
.btn-brand:hover,.btn-brand:focus{background:var(--brand-dark);border-color:var(--brand-dark);color:#fff;transform:translateY(-2px);box-shadow:0 12px 26px rgba(19,124,107,.26);}
.btn-brand:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(19,124,107,.28);}
.btn-brand.btn-sm{padding:10px 20px;font-size:15px;}
.btn-outline{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:transparent;color:var(--ink);border:1px solid var(--ink);
  border-radius:var(--radius-btn);padding:13px 26px;font-weight:700;font-size:16px;
  transition:transform .2s ease,background .2s ease,color .2s ease;
}
.btn-outline:hover,.btn-outline:focus{background:var(--ink);color:#fff;transform:translateY(-2px);}
.btn-outline:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(23,26,28,.2);}
.btn-ghost-light{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:rgba(255,255,255,.10);color:#fff;border:1px solid rgba(255,255,255,.55);
  border-radius:var(--radius-btn);padding:13px 26px;font-weight:700;font-size:16px;
  backdrop-filter:blur(2px);transition:transform .2s ease,background .2s ease,color .2s ease;
}
.btn-ghost-light:hover,.btn-ghost-light:focus{background:#fff;color:var(--ink);transform:translateY(-2px);}
.link-arrow{
  display:inline-flex;align-items:center;gap:8px;color:var(--brand);font-weight:700;font-size:15.5px;
}
.link-arrow i{transition:transform .22s ease;}
.link-arrow:hover i{transform:translateX(5px);}
.badge-soft{
  display:inline-flex;align-items:center;gap:6px;border-radius:var(--radius-pill);
  padding:5px 14px;font-size:13.5px;font-weight:700;letter-spacing:.04em;
}
.badge-green{background:var(--brand-soft);color:var(--brand-dark);}
.badge-orange{background:var(--accent-soft);color:#C64A22;}
.badge-gray{background:var(--gray-soft);color:var(--muted);}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;font-size:14px;font-weight:700;
  letter-spacing:.16em;color:var(--brand);text-transform:uppercase;margin-bottom:16px;
}
.eyebrow::before{content:"";width:26px;height:2px;background:var(--brand);display:inline-block;}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:1030;background:rgba(255,255,255,.94);
  backdrop-filter:blur(10px);border-bottom:1px solid var(--line);
}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:72px;gap:20px;}
.brand{display:flex;align-items:center;gap:12px;}
.brand-mark{
  width:42px;height:42px;border-radius:12px;background:linear-gradient(135deg,var(--brand),#1AA38C);
  color:#fff;font-weight:800;font-size:20px;display:flex;align-items:center;justify-content:center;
  box-shadow:0 8px 18px rgba(19,124,107,.24);flex:0 0 auto;
}
.brand-text{display:flex;flex-direction:column;line-height:1.2;}
.brand-name{font-size:17px;font-weight:800;color:var(--ink);letter-spacing:.02em;}
.brand-sub{font-size:10.5px;letter-spacing:.18em;color:var(--muted);font-weight:600;}
.nav-links{display:flex;align-items:center;gap:6px;}
.nav-links a{
  display:block;padding:9px 14px;font-size:15.5px;font-weight:600;color:var(--ink-2);
  border-radius:var(--radius-pill);position:relative;white-space:nowrap;
}
.nav-links a:hover{background:var(--gray-soft);color:var(--brand);}
.nav-links a.active{color:var(--brand);background:var(--brand-soft);}
.nav-links a.active::after{
  content:"";position:absolute;left:50%;bottom:2px;transform:translateX(-50%);
  width:18px;height:2.5px;border-radius:2px;background:var(--accent);
}
.nav-cta{display:flex;align-items:center;gap:10px;}
.nav-toggle{
  display:none;background:transparent;border:1px solid var(--line);border-radius:10px;
  width:42px;height:42px;color:var(--ink);font-size:18px;cursor:pointer;
}
.nav-toggle:hover{background:var(--gray-soft);}
.mobile-nav{background:var(--surface);}
.mobile-nav .offcanvas-header{border-bottom:1px solid var(--line);padding:18px 22px;}
.mobile-nav .brand-name{font-size:17px;}
.mobile-nav .offcanvas-body{padding:22px;display:flex;flex-direction:column;gap:18px;}
.mobile-nav-links{display:flex;flex-direction:column;gap:4px;}
.mobile-nav-links a{
  display:block;padding:14px 12px;border-radius:var(--radius-btn);font-size:17px;font-weight:700;color:var(--ink);
  border-bottom:1px solid var(--line);
}
.mobile-nav-links a.active{color:var(--brand);background:var(--brand-soft);border-bottom-color:transparent;}
.btn-close{--bs-btn-close-focus-shadow:none;}

/* ============ 内页 Hero ============ */
.page-hero{
  position:relative;color:#fff;overflow:hidden;
  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(100deg,rgba(23,26,28,.90) 0%,rgba(23,26,28,.74) 46%,rgba(23,26,28,.42) 100%);
}
.page-hero .container{position:relative;z-index:2;}
.hero-inner{padding:86px 0 74px;max-width:820px;}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;background:rgba(255,255,255,.14);
  border:1px solid rgba(255,255,255,.28);border-radius:var(--radius-pill);
  padding:6px 16px;font-size:13.5px;font-weight:700;letter-spacing:.08em;color:#fff;margin-bottom:20px;
}
.page-hero h1{
  color:#fff;font-size:clamp(30px,4.2vw,50px);font-weight:800;letter-spacing:.01em;margin-bottom:18px;
}
.hero-sub{font-size:18px;line-height:1.8;color:rgba(255,255,255,.88);max-width:680px;margin-bottom:30px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:38px;}
.hero-stats{display:flex;flex-wrap:wrap;gap:14px;}
.stat-chip{
  background:rgba(255,255,255,.10);border:1px solid rgba(255,255,255,.22);
  border-radius:var(--radius-card);padding:14px 22px;min-width:172px;
}
.stat-chip strong{display:block;font-size:24px;font-weight:800;color:#fff;line-height:1.2;}
.stat-chip span{font-size:13.5px;color:rgba(255,255,255,.80);}

/* ============ 通用板块 ============ */
.section{padding:var(--section-y) 0;}
.section-alt{background:var(--surface);}
.section-head{max-width:760px;margin-bottom:52px;}
.section-head h2{font-size:clamp(24px,2.8vw,38px);margin-bottom:16px;}
.section-head p{color:var(--muted);font-size:17px;}

/* ============ 数据条 ============ */
.metric-strip{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow);display:grid;grid-template-columns:repeat(4,1fr);overflow:hidden;
}
.metric-strip .metric{padding:26px 28px;border-right:1px solid var(--line);}
.metric-strip .metric:last-child{border-right:0;}
.metric b{display:block;font-size:30px;font-weight:800;color:var(--accent);line-height:1.2;}
.metric span{font-size:14.5px;color:var(--muted);font-weight:600;}

/* ============ 场景区：粘性目录 + 长卡 ============ */
.scene-layout{display:grid;grid-template-columns:270px minmax(0,1fr);gap:44px;align-items:start;}
.toc-card{
  position:sticky;top:96px;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-card);padding:26px 22px;box-shadow:var(--shadow);
}
.toc-card h3{font-size:15px;letter-spacing:.14em;color:var(--muted);font-weight:700;margin-bottom:16px;}
.toc-list{display:flex;flex-direction:column;gap:2px;}
.toc-list a{
  display:flex;align-items:flex-start;gap:10px;padding:10px 10px;border-radius:8px;
  font-size:15px;font-weight:600;color:var(--ink-2);border-left:2px solid transparent;
}
.toc-list a i{color:var(--brand);font-size:11px;margin-top:8px;}
.toc-list a:hover{background:var(--gray-soft);color:var(--brand);}
.toc-help{
  margin-top:20px;padding-top:20px;border-top:1px dashed var(--line);font-size:14px;color:var(--muted);
}
.toc-help a{color:var(--brand);font-weight:700;}

.scene-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:32px;box-shadow:var(--shadow);margin-bottom:28px;
  transition:transform .25s ease,box-shadow .25s ease;
  scroll-margin-top:100px;
}
.scene-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);}
.scene-head{display:flex;flex-wrap:wrap;align-items:center;gap:14px;margin-bottom:8px;}
.scene-index{
  width:38px;height:38px;border-radius:11px;background:var(--brand);color:#fff;
  font-weight:800;font-size:16px;display:flex;align-items:center;justify-content:center;flex:0 0 auto;
}
.scene-head h3{font-size:23px;font-weight:800;}
.scene-owner{
  display:flex;flex-wrap:wrap;gap:10px;font-size:14.5px;color:var(--muted);margin:12px 0 22px;
}
.scene-owner span{background:var(--gray-soft);border-radius:var(--radius-pill);padding:5px 14px;font-weight:600;}
.flow-title{font-size:14px;font-weight:700;letter-spacing:.12em;color:var(--brand);margin-bottom:16px;}
.flow{position:relative;padding-left:26px;margin-bottom:24px;}
.flow::before{content:"";position:absolute;left:7px;top:8px;bottom:8px;width:2px;background:linear-gradient(180deg,var(--brand),rgba(19,124,107,.12));}
.flow li{position:relative;padding:0 0 16px 0;font-size:15.8px;color:var(--ink-2);}
.flow li:last-child{padding-bottom:0;}
.flow li::before{
  content:"";position:absolute;left:-24px;top:9px;width:10px;height:10px;border-radius:50%;
  background:#fff;border:2.5px solid var(--brand);
}
.flow li b{display:block;font-weight:700;color:var(--ink);}
.result-box{
  background:var(--brand-soft);border-radius:12px;padding:20px 22px;margin-bottom:20px;
  display:grid;grid-template-columns:repeat(3,1fr);gap:16px;
}
.result-box .r b{display:block;font-size:21px;font-weight:800;color:var(--brand-dark);line-height:1.3;}
.result-box .r span{font-size:13.5px;color:var(--muted);font-weight:600;}
.scene-foot{display:flex;flex-wrap:wrap;align-items:center;gap:16px;justify-content:space-between;}
.scene-tags{display:flex;flex-wrap:wrap;gap:8px;}

/* ============ 落地节奏（横向时间线） ============ */
.rhythm-wrap{
  background:var(--ink);border-radius:20px;color:#fff;padding:56px 44px;position:relative;overflow:hidden;
}
.rhythm-wrap::after{
  content:"";position:absolute;right:-60px;top:-60px;width:280px;height:280px;border-radius:50%;
  background:radial-gradient(circle,rgba(19,124,107,.55),transparent 68%);
}
.rhythm-wrap h2{color:#fff;font-size:clamp(24px,2.6vw,34px);margin-bottom:14px;position:relative;z-index:2;}
.rhythm-wrap .lead-text{color:rgba(255,255,255,.76);max-width:720px;margin-bottom:44px;position:relative;z-index:2;}
.rhythm-line{display:grid;grid-template-columns:repeat(4,1fr);gap:26px;position:relative;z-index:2;}
.rhythm-item{position:relative;padding-top:30px;}
.rhythm-item::before{
  content:"";position:absolute;top:6px;left:0;right:0;height:2px;background:rgba(255,255,255,.18);
}
.rhythm-item::after{
  content:"";position:absolute;top:0;left:0;width:14px;height:14px;border-radius:50%;
  background:var(--accent);box-shadow:0 0 0 4px rgba(242,106,61,.22);
}
.rhythm-item em{display:block;font-style:normal;font-size:12.5px;letter-spacing:.16em;color:var(--accent);font-weight:700;margin-bottom:8px;}
.rhythm-item h3{color:#fff;font-size:19px;margin-bottom:8px;}
.rhythm-item p{color:rgba(255,255,255,.72);font-size:15px;margin:0;}

/* ============ 指标板块 ============ */
.proof-band{display:grid;grid-template-columns:repeat(3,1fr);gap:26px;}
.proof-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;box-shadow:var(--shadow);transition:transform .25s ease,box-shadow .25s ease;
}
.proof-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);}
.proof-card .thumb{aspect-ratio:16/10;overflow:hidden;}
.proof-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.proof-card:hover .thumb img{transform:scale(1.03);}
.proof-body{padding:26px;}
.proof-body h3{font-size:20px;margin:12px 0 10px;}
.proof-body p{font-size:15.5px;color:var(--muted);}
.proof-nums{display:flex;gap:22px;margin-top:18px;padding-top:18px;border-top:1px dashed var(--line);}
.proof-nums div b{display:block;font-size:20px;color:var(--accent);font-weight:800;}
.proof-nums div span{font-size:13px;color:var(--muted);}

/* ============ FAQ ============ */
.faq-wrap{max-width:920px;margin:0 auto;}
.faq-item{
  background:var(--surface);border:1px solid var(--line);border-left:4px solid var(--brand);
  border-radius:12px;margin-bottom:16px;overflow:hidden;transition:box-shadow .25s ease;
}
.faq-item:hover{box-shadow:var(--shadow);}
.faq-item h3{margin:0;font-size:18px;}
.faq-item .accordion-button{
  background:transparent;color:var(--ink);font-weight:700;font-size:18px;
  padding:22px 26px;box-shadow:none;border:0;letter-spacing:.01em;
}
.faq-item .accordion-button:not(.collapsed){color:var(--brand-dark);background:transparent;}
.faq-item .accordion-button:focus{box-shadow:none;border:0;}
.faq-item .accordion-button::after{
  background-image:none;content:"\f067";font-family:"Font Awesome 6 Free";font-weight:900;
  font-size:14px;color:var(--brand);width:auto;height:auto;transform:none;
  display:flex;align-items:center;justify-content:center;
}
.faq-item .accordion-button:not(.collapsed)::after{content:"\f068";}
.faq-item .accordion-body{padding:0 26px 24px;color:var(--muted);font-size:16px;line-height:1.85;}

/* ============ CTA + 表单 ============ */
.cta-section{
  background:linear-gradient(120deg,#0F6559 0%,#137C6B 58%,#1AA38C 100%);
  border-radius:22px;color:#fff;padding:56px 48px;position:relative;overflow:hidden;
}
.cta-section::before{
  content:"";position:absolute;left:-80px;bottom:-110px;width:320px;height:320px;border-radius:50%;
  background:rgba(255,255,255,.08);
}
.cta-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;position:relative;z-index:2;}
.cta-section h2{color:#fff;font-size:clamp(24px,2.6vw,34px);margin-bottom:16px;}
.cta-section p{color:rgba(255,255,255,.86);font-size:16.5px;}
.cta-points{margin-top:26px;display:flex;flex-direction:column;gap:12px;}
.cta-points li{display:flex;gap:10px;align-items:flex-start;font-size:15.5px;color:rgba(255,255,255,.92);}
.cta-points i{color:#FFD8C8;margin-top:6px;}
.contact-form{
  background:var(--surface);border-radius:16px;padding:30px;box-shadow:0 18px 44px rgba(0,0,0,.16);
}
.contact-form .form-label{font-size:14.5px;font-weight:700;color:var(--ink);margin-bottom:7px;}
.contact-form .form-control,.contact-form .form-select{
  height:48px;border-radius:var(--radius-input);border:1px solid var(--line);
  font-size:15.5px;color:var(--ink-2);background:#FDFCFA;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.contact-form textarea.form-control{height:auto;min-height:104px;padding-top:12px;line-height:1.7;}
.contact-form .form-control:focus,.contact-form .form-select:focus{
  border-color:var(--brand);box-shadow:0 0 0 3px rgba(19,124,107,.16);background:#fff;
}
.contact-form .form-text{font-size:13px;color:var(--muted);}
.form-note{font-size:13px;color:var(--muted);margin-top:14px;}

/* ============ 页脚 ============ */
.site-footer{background:var(--ink);color:rgba(255,255,255,.76);padding:72px 0 30px;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.3fr;gap:40px;}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:20px;}
.footer-brand .brand-mark{background:linear-gradient(135deg,#1AA38C,var(--brand));}
.footer-brand .brand-name{color:#fff;}
.footer-brand .brand-sub{color:rgba(255,255,255,.5);}
.footer-desc{font-size:15px;line-height:1.85;color:rgba(255,255,255,.70);margin-bottom:20px;}
.footer-badges{display:flex;flex-wrap:wrap;gap:10px;}
.footer-badges span{
  font-size:13px;font-weight:600;border:1px solid rgba(255,255,255,.22);
  border-radius:var(--radius-pill);padding:5px 14px;color:rgba(255,255,255,.8);
}
.site-footer h4{color:#fff;font-size:16px;font-weight:700;margin:0 0 20px;letter-spacing:.04em;}
.footer-list{display:flex;flex-direction:column;gap:12px;}
.footer-list a{font-size:15px;color:rgba(255,255,255,.72);}
.footer-list a:hover{color:#fff;padding-left:3px;}
.footer-contact li{display:flex;gap:10px;align-items:flex-start;font-size:14.5px;color:rgba(255,255,255,.72);}
.footer-contact i{color:var(--brand-soft);margin-top:6px;font-size:13px;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.14);margin-top:52px;padding-top:24px;
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:14px;color:rgba(255,255,255,.55);
}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  .nav-links a{padding:9px 10px;font-size:14.5px;}
  .scene-layout{grid-template-columns:238px minmax(0,1fr);gap:32px;}
}
@media (max-width:991.98px){
  :root{--section-y:64px;}
  .nav-links,.nav-cta{display:none;}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center;}
  .nav-inner{height:64px;}
  .hero-inner{padding:68px 0 60px;}
  .scene-layout{grid-template-columns:1fr;gap:28px;}
  .toc-card{position:static;}
  .toc-list{flex-direction:row;flex-wrap:wrap;gap:8px;}
  .toc-list a{background:var(--gray-soft);border-left:0;border-radius:var(--radius-pill);padding:8px 14px;font-size:14px;}
  .toc-list a i{display:none;}
  .metric-strip{grid-template-columns:repeat(2,1fr);}
  .metric-strip .metric:nth-child(2){border-right:0;}
  .metric-strip .metric:nth-child(1),.metric-strip .metric:nth-child(2){border-bottom:1px solid var(--line);}
  .rhythm-line{grid-template-columns:repeat(2,1fr);gap:32px 24px;}
  .proof-band{grid-template-columns:repeat(2,1fr);}
  .proof-band > *:last-child{grid-column:span 2;}
  .cta-grid{grid-template-columns:1fr;gap:34px;}
  .cta-section{padding:40px 28px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px;}
}
@media (max-width:767.98px){
  body{font-size:16px;}
  .hero-sub{font-size:16.5px;}
  .hero-stats{gap:10px;}
  .stat-chip{padding:12px 18px;min-width:calc(50% - 5px);flex:1 1 auto;}
  .stat-chip strong{font-size:21px;}
  .scene-card{padding:24px 20px;}
  .result-box{grid-template-columns:1fr;gap:12px;padding:18px;}
  .rhythm-wrap{padding:38px 24px;}
  .rhythm-line{grid-template-columns:1fr;}
  .rhythm-item{padding-top:26px;}
  .rhythm-item::before{right:0;}
  .proof-band{grid-template-columns:1fr;}
  .proof-band > *:last-child{grid-column:span 1;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;}
  .contact-form{padding:24px 20px;}
  .cta-section{border-radius:16px;}
}
@media (max-width:575.98px){
  .container{padding-left:16px;padding-right:16px;}
  .metric-strip{grid-template-columns:1fr;}
  .metric-strip .metric{border-right:0;border-bottom:1px solid var(--line);}
  .metric-strip .metric:last-child{border-bottom:0;}
  .hero-actions .btn-brand,.hero-actions .btn-ghost-light{width:100%;}
  .scene-foot{flex-direction:column;align-items:flex-start;}
  .brand-name{font-size:15.5px;}
}

/* roulang page: category3 */
:root{
  --brand:#137C6B;
  --brand-deep:#0E5F52;
  --brand-soft:rgba(19,124,107,.09);
  --brand-line:rgba(19,124,107,.24);
  --accent:#F26A3D;
  --accent-soft:rgba(242,106,61,.12);
  --ink:#171A1C;
  --ink-soft:#2B3134;
  --paper:#F7F4EE;
  --surface:#FFFFFF;
  --border:#E2DED6;
  --text:#242827;
  --muted:#6B6F6C;
  --r-card:14px;
  --r-btn:10px;
  --r-pill:999px;
  --shadow:0 10px 30px rgba(23,26,28,.06);
  --shadow-hover:0 16px 40px rgba(23,26,28,.10);
  --font:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei","Hiragino Sans GB",sans-serif;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  font-size:17px;
  line-height:1.85;
  letter-spacing:.02em;
  color:var(--text);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--brand);text-decoration:none;transition:color .2s ease,background-color .2s ease,border-color .2s ease;}
a:hover{color:var(--brand-deep);}
p{margin:0 0 1.15em;}
h1,h2,h3,h4{color:var(--ink);font-weight:800;line-height:1.32;margin:0 0 .6em;letter-spacing:.01em;}
ul{list-style:none;margin:0;padding:0;}
button{font-family:inherit;}
:focus-visible{outline:3px solid rgba(19,124,107,.35);outline-offset:2px;}

.container{
  width:100%;
  max-width:1240px;
  margin:0 auto;
  padding-left:24px;
  padding-right:24px;
}
@media (max-width:575px){
  .container{padding-left:18px;padding-right:18px;}
}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:1040;
  background:rgba(247,244,238,.94);
  backdrop-filter:saturate(140%) blur(10px);
  border-bottom:1px solid var(--border);
}
.nav-inner{
  display:flex;
  align-items:center;
  gap:22px;
  min-height:72px;
}
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
  color:var(--ink);
}
.brand:hover{color:var(--ink);}
.brand-mark{
  width:38px;height:38px;
  display:flex;align-items:center;justify-content:center;
  border-radius:11px;
  background:linear-gradient(135deg,var(--brand) 0%,#1B9C87 100%);
  color:#fff;
  font-weight:800;
  font-size:19px;
  letter-spacing:0;
  box-shadow:0 6px 16px rgba(19,124,107,.28);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-name{font-size:16px;font-weight:800;color:var(--ink);}
.brand-sub{font-size:10px;letter-spacing:.16em;color:var(--muted);font-weight:600;}
.nav-links{
  display:flex;
  align-items:center;
  gap:4px;
  margin-left:auto;
}
.nav-links li{position:relative;}
.nav-links a{
  display:inline-block;
  padding:9px 13px;
  font-size:15px;
  font-weight:600;
  color:var(--ink-soft);
  border-radius:var(--r-btn);
  white-space:nowrap;
}
.nav-links a:hover{background:var(--brand-soft);color:var(--brand-deep);}
.nav-links a.active{color:var(--brand-deep);background:var(--brand-soft);}
.nav-links a.active::after{
  content:"";
  position:absolute;
  left:14px;right:14px;bottom:-2px;
  height:3px;
  border-radius:3px;
  background:var(--brand);
}
.nav-cta{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.nav-toggle{
  display:none;
  width:42px;height:42px;
  border:1px solid var(--border);
  border-radius:var(--r-btn);
  background:var(--surface);
  color:var(--ink);
  font-size:18px;
  align-items:center;justify-content:center;
}
.nav-toggle:hover{background:var(--brand-soft);border-color:var(--brand-line);color:var(--brand-deep);}

@media (max-width:1199px){
  .nav-links a{padding:9px 10px;font-size:14px;}
}
@media (max-width:991px){
  .nav-inner{min-height:60px;}
  .nav-links,.nav-cta{display:none;}
  .nav-toggle{display:inline-flex;}
  .brand-name{font-size:15px;}
  .brand-sub{font-size:9px;}
}

/* ---------- 按钮 ---------- */
.btn-brand,
.btn-ghost,
.btn-line{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:13px 26px;
  font-size:16px;
  font-weight:700;
  border-radius:var(--r-btn);
  border:1px solid transparent;
  cursor:pointer;
  transition:transform .2s ease,box-shadow .2s ease,background-color .2s ease,color .2s ease,border-color .2s ease;
}
.btn-brand{
  background:var(--brand);
  color:#fff;
  box-shadow:0 8px 20px rgba(19,124,107,.24);
}
.btn-brand:hover{background:var(--brand-deep);color:#fff;transform:translateY(-2px);box-shadow:0 14px 28px rgba(19,124,107,.3);}
.btn-brand:focus-visible{outline:3px solid rgba(19,124,107,.35);outline-offset:2px;}
.btn-ghost{
  background:transparent;
  color:var(--ink);
  border-color:rgba(23,26,28,.32);
}
.btn-ghost:hover{background:var(--ink);color:#fff;border-color:var(--ink);transform:translateY(-2px);}
.btn-line{
  background:transparent;
  color:var(--brand-deep);
  border-color:var(--brand-line);
}
.btn-line:hover{background:var(--brand-soft);color:var(--brand-deep);}
.btn-sm{padding:10px 20px;font-size:14px;}
.btn-brand[disabled],.btn-ghost[disabled]{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none;}

.link-arrow{
  display:inline-flex;
  align-items:center;
  gap:7px;
  font-weight:700;
  font-size:15px;
  color:var(--brand-deep);
}
.link-arrow i{transition:transform .22s ease;}
.link-arrow:hover i{transform:translateX(5px);}

/* ---------- 徽章 / 标签 ---------- */
.badge-soft{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:5px 13px;
  border-radius:var(--r-pill);
  font-size:13px;
  font-weight:700;
  line-height:1.6;
  letter-spacing:.04em;
}
.badge-green{background:var(--brand-soft);color:var(--brand-deep);}
.badge-orange{background:var(--accent-soft);color:#C7451B;}
.badge-gray{background:#EFEDE7;color:#5A605D;}
.badge-white{background:rgba(255,255,255,.92);color:var(--brand-deep);}

/* ---------- 内页 Hero ---------- */
.page-hero{
  position:relative;
  padding:92px 0 76px;
  background:#171A1C url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  overflow:hidden;
}
.page-hero::before{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(100deg,rgba(23,26,28,.94) 0%,rgba(23,26,28,.82) 48%,rgba(23,26,28,.5) 100%);
}
.page-hero .container{position:relative;z-index:2;}
.crumb{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:8px;
  font-size:14px;
  color:rgba(255,255,255,.72);
  margin-bottom:22px;
}
.crumb a{color:rgba(255,255,255,.82);}
.crumb a:hover{color:#fff;}
.crumb i{font-size:11px;opacity:.7;}
.crumb span.current{color:#fff;font-weight:600;}
.page-hero h1{
  color:#fff;
  font-size:clamp(30px,4vw,50px);
  max-width:900px;
  margin-bottom:18px;
}
.page-hero .lead{
  color:rgba(255,255,255,.86);
  font-size:18px;
  max-width:720px;
  margin-bottom:28px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:30px;}
.page-hero .btn-ghost{color:#fff;border-color:rgba(255,255,255,.5);}
.page-hero .btn-ghost:hover{background:#fff;color:var(--ink);border-color:#fff;}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;}
.hero-tags span{
  display:inline-flex;
  align-items:center;
  gap:7px;
  padding:7px 15px;
  border-radius:var(--r-pill);
  border:1px solid rgba(255,255,255,.25);
  background:rgba(255,255,255,.1);
  color:#fff;
  font-size:13.5px;
  font-weight:600;
}
.hero-tags i{color:#7BD9C7;}

/* ---------- 数据条 ---------- */
.stat-bar{
  background:var(--surface);
  border-bottom:1px solid var(--border);
}
.stat-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:0;
}
.stat-item{
  padding:32px 26px;
  border-right:1px solid var(--border);
}
.stat-item:last-child{border-right:0;}
.stat-num{
  font-size:34px;
  font-weight:800;
  color:var(--brand-deep);
  line-height:1.2;
  letter-spacing:.01em;
}
.stat-num em{font-style:normal;color:var(--accent);}
.stat-label{font-size:14.5px;color:var(--muted);margin-top:6px;}
@media (max-width:991px){
  .stat-grid{grid-template-columns:repeat(2,1fr);}
  .stat-item{border-bottom:1px solid var(--border);}
  .stat-item:nth-child(2n){border-right:0;}
  .stat-item:nth-last-child(-n+2){border-bottom:0;}
}
@media (max-width:575px){
  .stat-item{padding:24px 18px;}
  .stat-num{font-size:26px;}
}

/* ---------- 通用板块 ---------- */
.section{padding:88px 0;}
.section-alt{background:var(--surface);}
.section-ink{background:var(--ink);color:rgba(255,255,255,.82);}
.section-ink h2,.section-ink h3{color:#fff;}
.section-head{max-width:760px;margin-bottom:48px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  font-weight:800;
  letter-spacing:.16em;
  color:var(--brand);
  text-transform:uppercase;
  margin-bottom:14px;
}
.eyebrow::before{
  content:"";
  width:26px;height:3px;
  border-radius:3px;
  background:var(--accent);
}
.section-head h2{font-size:clamp(24px,3.1vw,38px);margin-bottom:14px;}
.section-head p{color:var(--muted);font-size:17px;margin:0;}
.section-ink .section-head p{color:rgba(255,255,255,.72);}

/* ---------- 筛选标签 ---------- */
.filter-bar{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-bottom:34px;
}
.filter-tag{
  padding:9px 20px;
  border-radius:var(--r-pill);
  border:1px solid var(--border);
  background:var(--surface);
  color:var(--ink-soft);
  font-size:14.5px;
  font-weight:600;
  cursor:pointer;
  transition:all .2s ease;
}
.filter-tag:hover{border-color:var(--brand-line);color:var(--brand-deep);}
.filter-tag.is-active{
  background:var(--brand);
  border-color:var(--brand);
  color:#fff;
  box-shadow:0 8px 18px rgba(19,124,107,.22);
}

/* ---------- 案例瀑布流 ---------- */
.case-masonry{
  column-count:3;
  column-gap:28px;
}
.case-card{
  break-inside:avoid;
  display:inline-block;
  width:100%;
  margin-bottom:28px;
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--r-card);
  overflow:hidden;
  box-shadow:var(--shadow);
  transition:transform .25s ease,box-shadow .25s ease;
}
.case-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);}
.case-cover{
  position:relative;
  overflow:hidden;
  background:#E7E4DD;
}
.case-cover img{
  width:100%;
  height:var(--cover-h,210px);
  object-fit:cover;
  transition:transform .4s ease;
}
.case-card:hover .case-cover img{transform:scale(1.03);}
.case-cover .badge-soft{
  position:absolute;
  left:14px;top:14px;
  background:rgba(255,255,255,.94);
  color:var(--brand-deep);
  backdrop-filter:blur(4px);
}
.case-body{padding:24px 24px 26px;}
.case-body h3{font-size:20px;margin-bottom:12px;line-height:1.45;}
.case-body p{font-size:15px;color:var(--muted);margin-bottom:18px;line-height:1.8;}
.case-metrics{
  display:flex;
  flex-wrap:wrap;
  gap:18px;
  padding-top:16px;
  border-top:1px dashed var(--border);
}
.case-metric{min-width:90px;}
.case-metric strong{
  display:block;
  font-size:21px;
  font-weight:800;
  color:var(--accent);
  line-height:1.25;
}
.case-metric span{font-size:13px;color:var(--muted);}
@media (max-width:991px){
  .case-masonry{column-count:2;column-gap:22px;}
  .case-card{margin-bottom:22px;}
}
@media (max-width:575px){
  .case-masonry{column-count:1;}
  .case-cover img{--cover-h:200px;}
}

/* ---------- 深度案例交替图文 ---------- */
.deep-case{
  display:grid;
  grid-template-columns:minmax(0,1fr) minmax(0,1fr);
  gap:56px;
  align-items:center;
  padding:44px 0;
  border-bottom:1px solid var(--border);
}
.deep-case:last-child{border-bottom:0;padding-bottom:0;}
.deep-case.reverse .deep-media{order:2;}
.deep-media{
  border-radius:var(--r-card);
  overflow:hidden;
  border:1px solid var(--border);
  box-shadow:var(--shadow);
  background:#E7E4DD;
}
.deep-media img{width:100%;height:340px;object-fit:cover;}
.deep-body h3{font-size:clamp(21px,2.2vw,27px);margin:14px 0 16px;}
.deep-body p{color:var(--muted);font-size:16px;}
.deep-list{margin:20px 0 24px;}
.deep-list li{
  display:flex;
  gap:12px;
  padding:9px 0;
  font-size:15.5px;
  color:var(--ink-soft);
  border-bottom:1px dashed var(--border);
}
.deep-list li:last-child{border-bottom:0;}
.deep-list i{color:var(--brand);margin-top:6px;font-size:13px;}
.deep-stats{
  display:flex;
  flex-wrap:wrap;
  gap:26px;
  padding-top:18px;
  border-top:2px solid var(--brand-line);
}
.deep-stats div strong{
  display:block;
  font-size:24px;
  font-weight:800;
  color:var(--brand-deep);
  line-height:1.25;
}
.deep-stats div span{font-size:13px;color:var(--muted);}
@media (max-width:991px){
  .deep-case{grid-template-columns:1fr;gap:28px;padding:36px 0;}
  .deep-case.reverse .deep-media{order:0;}
  .deep-media img{height:260px;}
}

/* ---------- 资源列表 ---------- */
.resource-layout{
  display:grid;
  grid-template-columns:340px minmax(0,1fr);
  gap:40px;
  align-items:start;
}
.resource-aside{
  position:sticky;
  top:104px;
  padding:30px 28px;
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--r-card);
  box-shadow:var(--shadow);
}
.resource-aside h3{font-size:20px;margin-bottom:12px;}
.resource-aside p{font-size:15px;color:var(--muted);}
.resource-aside .aside-note{
  font-size:13px;
  color:var(--muted);
  margin-top:14px;
  margin-bottom:0;
}
.resource-list{display:grid;gap:16px;}
.resource-item{
  display:flex;
  align-items:flex-start;
  gap:20px;
  padding:24px 26px;
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--r-card);
  box-shadow:var(--shadow);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.resource-item:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:var(--brand-line);}
.resource-index{
  flex:0 0 auto;
  width:46px;height:46px;
  display:flex;align-items:center;justify-content:center;
  border-radius:12px;
  background:var(--brand-soft);
  color:var(--brand-deep);
  font-weight:800;
  font-size:17px;
}
.resource-main{flex:1 1 auto;min-width:0;}
.resource-main h3{font-size:18px;margin-bottom:8px;}
.resource-main p{font-size:14.5px;color:var(--muted);margin-bottom:10px;}
.resource-meta{display:flex;flex-wrap:wrap;gap:10px;font-size:13px;color:var(--muted);}
.resource-meta span{
  display:inline-flex;align-items:center;gap:6px;
}
.resource-get{
  flex:0 0 auto;
  align-self:center;
}
@media (max-width:991px){
  .resource-layout{grid-template-columns:1fr;gap:26px;}
  .resource-aside{position:static;}
}
@media (max-width:575px){
  .resource-item{flex-wrap:wrap;gap:14px;padding:20px;}
  .resource-get{width:100%;}
  .resource-get .btn-line{width:100%;}
}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:900px;margin:0 auto;}
.faq-accordion .accordion-item{
  border:1px solid var(--border);
  border-radius:var(--r-card);
  background:var(--surface);
  margin-bottom:14px;
  overflow:hidden;
  box-shadow:var(--shadow);
}
.faq-accordion .accordion-button{
  width:100%;
  text-align:left;
  padding:22px 24px 22px 66px;
  font-size:17.5px;
  font-weight:700;
  color:var(--ink);
  background:var(--surface);
  border:0;
  box-shadow:none;
  position:relative;
  line-height:1.6;
}
.faq-accordion .accordion-button::before{
  content:"";
  position:absolute;
  left:24px;top:50%;
  transform:translateY(-50%);
  width:6px;height:26px;
  border-radius:4px;
  background:var(--brand);
  opacity:.85;
}
.faq-accordion .accordion-button::after{
  content:"\f067";
  font-family:"Font Awesome 6 Free";
  font-weight:900;
  font-size:14px;
  color:var(--brand-deep);
  background:none;
  width:auto;height:auto;
  position:absolute;
  right:24px;top:50%;
  transform:translateY(-50%);
  transition:transform .25s ease;
}
.faq-accordion .accordion-button:not(.collapsed){color:var(--brand-deep);background:var(--brand-soft);}
.faq-accordion .accordion-button:not(.collapsed)::after{
  content:"\f068";
}
.faq-accordion .accordion-button:focus{box-shadow:none;outline:none;}
.faq-accordion .accordion-button:hover{background:var(--brand-soft);}
.faq-accordion .accordion-body{
  padding:6px 26px 26px 66px;
  font-size:16px;
  color:var(--muted);
  line-height:1.85;
}
@media (max-width:575px){
  .faq-accordion .accordion-button{padding:18px 50px 18px 46px;font-size:16px;}
  .faq-accordion .accordion-button::before{left:16px;width:5px;height:22px;}
  .faq-accordion .accordion-button::after{right:16px;}
  .faq-accordion .accordion-body{padding:4px 18px 20px 46px;font-size:15px;}
}

/* ---------- CTA 与表单 ---------- */
.cta-band{
  position:relative;
  padding:80px 0;
  background:linear-gradient(120deg,#0E5F52 0%,#137C6B 55%,#1B9C87 100%);
  color:#fff;
  overflow:hidden;
}
.cta-band::after{
  content:"";
  position:absolute;
  right:-120px;top:-120px;
  width:420px;height:420px;
  border-radius:50%;
  background:rgba(242,106,61,.22);
  filter:blur(10px);
}
.cta-layout{
  position:relative;
  z-index:2;
  display:grid;
  grid-template-columns:minmax(0,1fr) minmax(0,460px);
  gap:52px;
  align-items:start;
}
.cta-band h2{color:#fff;font-size:clamp(24px,3vw,36px);}
.cta-band p{color:rgba(255,255,255,.86);}
.cta-points{margin-top:24px;display:grid;gap:12px;}
.cta-points li{display:flex;gap:11px;font-size:15.5px;color:rgba(255,255,255,.9);}
.cta-points i{color:#8FE3D2;margin-top:6px;font-size:13px;}
.cta-form{
  background:var(--surface);
  border-radius:var(--r-card);
  padding:30px;
  box-shadow:0 22px 50px rgba(6,32,27,.28);
}
.cta-form h3{font-size:20px;margin-bottom:6px;}
.cta-form .form-tip{font-size:14px;color:var(--muted);margin-bottom:20px;}
.cta-form .form-label{font-size:14px;font-weight:700;color:var(--ink-soft);margin-bottom:6px;}
.cta-form .form-control,
.cta-form .form-select{
  height:48px;
  border-radius:var(--r-btn);
  border:1px solid var(--border);
  background:#FCFBF8;
  font-size:15px;
  color:var(--text);
  padding:10px 14px;
  box-shadow:none;
}
.cta-form textarea.form-control{height:auto;min-height:104px;resize:vertical;}
.cta-form .form-control:focus,
.cta-form .form-select:focus{
  border-color:var(--brand);
  box-shadow:0 0 0 3px rgba(19,124,107,.16);
  background:#fff;
}
.cta-form .form-control.is-invalid,
.cta-form .form-select.is-invalid{border-color:#C7451B;}
.cta-form .invalid-feedback{font-size:13px;color:#C7451B;}
.cta-form .privacy-note{font-size:12.5px;color:var(--muted);margin:14px 0 0;line-height:1.7;}
.form-success{
  display:none;
  margin-top:14px;
  padding:12px 16px;
  border-radius:var(--r-btn);
  background:var(--brand-soft);
  color:var(--brand-deep);
  font-size:14.5px;
  font-weight:600;
}
.form-success.show{display:block;}
@media (max-width:991px){
  .cta-layout{grid-template-columns:1fr;gap:32px;}
  .cta-band{padding:64px 0;}
  .cta-form{padding:24px;}
}

/* ---------- 页脚 ---------- */
.site-footer{
  background:#141719;
  color:rgba(255,255,255,.7);
  padding:72px 0 28px;
  font-size:15px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:40px;
  padding-bottom:44px;
  border-bottom:1px solid rgba(255,255,255,.12);
}
.site-footer h4{
  color:#fff;
  font-size:16px;
  margin-bottom:18px;
  letter-spacing:.04em;
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-name{color:#fff;font-size:16px;}
.footer-brand .brand-sub{color:rgba(255,255,255,.5);}
.footer-desc{font-size:14.5px;line-height:1.85;color:rgba(255,255,255,.66);margin-bottom:18px;}
.footer-badges{display:flex;flex-wrap:wrap;gap:8px;}
.footer-badges span{
  padding:5px 12px;
  border-radius:var(--r-pill);
  border:1px solid rgba(255,255,255,.18);
  font-size:12.5px;
  color:rgba(255,255,255,.8);
}
.footer-list li{margin-bottom:11px;}
.footer-list a{color:rgba(255,255,255,.7);font-size:14.5px;}
.footer-list a:hover{color:#7BD9C7;}
.footer-contact li{
  display:flex;
  gap:10px;
  font-size:14.5px;
  color:rgba(255,255,255,.7);
  line-height:1.7;
}
.footer-contact i{color:#7BD9C7;margin-top:6px;font-size:13px;}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  gap:12px;
  padding-top:24px;
  font-size:13.5px;
  color:rgba(255,255,255,.5);
}
@media (max-width:991px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:575px){
  .site-footer{padding:52px 0 24px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;}
}

/* ---------- 移动端 Offcanvas ---------- */
.offcanvas.mobile-nav{
  width:min(340px,88vw);
  background:var(--paper);
  border-left:1px solid var(--border);
}
.mobile-nav .offcanvas-header{
  padding:18px 22px;
  border-bottom:1px solid var(--border);
}
.mobile-nav .offcanvas-body{padding:18px 22px 28px;}
.mobile-nav .m-list li{border-bottom:1px solid var(--border);}
.mobile-nav .m-list a{
  display:block;
  padding:16px 4px;
  font-size:16.5px;
  font-weight:700;
  color:var(--ink);
}
.mobile-nav .m-list a:hover,
.mobile-nav .m-list a.active{color:var(--brand-deep);}
.mobile-nav .m-cta{margin-top:24px;}
.mobile-nav .m-cta .btn-brand{width:100%;}
.mobile-nav .btn-close{box-shadow:none;}

/* ---------- 其它 ---------- */
.divider-soft{height:1px;background:var(--border);border:0;margin:0;}
.text-accent{color:var(--accent);}