/* roulang page: index */
:root{
  --brand:#0E6B5C;
  --brand-deep:#083F36;
  --accent:#F2681F;
  --cool:#2FA98C;
  --bg:#F6F4EF;
  --card:#FFFFFF;
  --line:#E2DED5;
  --ink:#1B2320;
  --muted:#5B6663;
  --r-card:16px;
  --r-img:12px;
  --r-btn:10px;
  --sh-sm:0 1px 2px rgba(16,32,28,.06);
  --sh-lg:0 12px 28px -14px rgba(16,32,28,.22);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  background:var(--bg);
  color:var(--ink);
  font-size:16px;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;line-height:1.25;font-weight:700}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}
.container{max-width:1200px;margin:0 auto;padding:0 20px}
@media(min-width:768px){.container{padding:0 24px}}
@media(min-width:1440px){.container{max-width:1280px}}

/* ---------- 顶部细条 ---------- */
.topbar{background:var(--brand-deep);color:#C9DAD5;font-size:13px;height:36px;display:flex;align-items:center}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;width:100%}
.topbar-note{display:flex;align-items:center;gap:8px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.topbar-note i{color:var(--cool)}
.topbar-links{display:flex;gap:18px;flex-shrink:0}
.topbar-links a{color:#C9DAD5;transition:color .18s}
.topbar-links a:hover{color:#fff}
@media(max-width:768px){.topbar-links{display:none}.topbar-note{font-size:12px}}

/* ---------- 导航 ---------- */
.site-header{position:sticky;top:0;z-index:60;background:#fff;border-bottom:1px solid var(--line);transition:box-shadow .22s}
.site-header.is-scrolled{box-shadow:0 8px 24px -18px rgba(16,32,28,.4)}
.nav-inner{height:68px;display:flex;align-items:center;gap:20px}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0}
.logo-mark{width:38px;height:38px;border-radius:11px;background:linear-gradient(140deg,var(--brand),var(--brand-deep));color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:17px;letter-spacing:.5px;box-shadow:var(--sh-sm)}
.logo-text{font-size:19px;font-weight:700;letter-spacing:.2px;white-space:nowrap}
.logo-text span{color:var(--brand)}
.logo-sub{display:block;font-size:11px;color:var(--muted);font-weight:400;letter-spacing:1px;line-height:1.2}
.nav-links{display:none;align-items:center;gap:4px;margin-left:auto}
.nav-link{padding:9px 14px;border-radius:999px;font-size:15px;color:#34403C;transition:background .18s,color .18s;white-space:nowrap}
.nav-link:hover{background:rgba(14,107,92,.08);color:var(--brand)}
.nav-link.active{background:rgba(14,107,92,.1);color:var(--brand);font-weight:600}
.nav-cta{margin-left:14px;display:inline-flex;align-items:center;gap:7px;padding:10px 18px;border-radius:var(--r-btn);border:1px solid var(--brand);color:var(--brand);font-size:15px;font-weight:600;background:#fff;transition:all .18s}
.nav-cta:hover{background:var(--brand);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-lg)}
.burger{margin-left:auto;width:42px;height:42px;border-radius:10px;border:1px solid var(--line);background:#fff;display:flex;align-items:center;justify-content:center;font-size:17px;color:var(--brand-deep);cursor:pointer}
.burger:hover{border-color:var(--brand);color:var(--brand)}
@media(min-width:1024px){.nav-links{display:flex}.burger{display:none}}
.drawer{position:fixed;inset:0;background:#fff;z-index:90;transform:translateX(100%);transition:transform .28s ease;display:flex;flex-direction:column;padding:22px 20px calc(22px + env(safe-area-inset-bottom))}
.drawer.open{transform:translateX(0)}
.drawer-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:26px}
.drawer-close{width:42px;height:42px;border-radius:10px;border:1px solid var(--line);background:#fff;font-size:18px;cursor:pointer}
.drawer-nav{display:flex;flex-direction:column;gap:6px}
.drawer-nav a{padding:14px 12px;border-radius:12px;font-size:17px;font-weight:600;border-bottom:1px solid var(--line)}
.drawer-nav a.active{background:rgba(14,107,92,.08);color:var(--brand)}
.drawer-cta{margin-top:auto;display:block;text-align:center;padding:15px;border-radius:var(--r-btn);background:var(--brand);color:#fff;font-weight:600}
@media(min-width:1024px){.drawer{display:none}}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 24px;border-radius:var(--r-btn);font-size:15px;font-weight:600;line-height:1.2;border:1px solid transparent;cursor:pointer;transition:transform .16s,background .18s,color .18s,box-shadow .18s,border-color .18s}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--brand);color:#fff;box-shadow:var(--sh-sm)}
.btn-primary:hover{background:#0b5b4e;transform:translateY(-1px);box-shadow:var(--sh-lg)}
.btn-accent{background:var(--accent);color:#fff}
.btn-accent:hover{background:#da5a17;transform:translateY(-1px);box-shadow:var(--sh-lg)}
.btn-ghost{background:#fff;color:var(--brand);border-color:rgba(14,107,92,.35)}
.btn-ghost:hover{border-color:var(--brand);background:rgba(14,107,92,.06);transform:translateY(-1px)}
.btn-light{background:#fff;color:var(--brand-deep)}
.btn-light:hover{transform:translateY(-1px);box-shadow:0 14px 30px -16px rgba(0,0,0,.5)}
.btn-sm{padding:9px 16px;font-size:14px}

/* ---------- Hero ---------- */
.hero{padding:64px 0 56px;position:relative;overflow:hidden}
.hero::before{content:"";position:absolute;right:-160px;top:-120px;width:520px;height:520px;border-radius:50%;background:rgba(14,107,92,.06);pointer-events:none}
.hero-grid{display:grid;gap:36px;align-items:center;position:relative}
@media(min-width:1024px){.hero-grid{grid-template-columns:6fr 6fr;gap:48px}}
.eyebrow{display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;background:rgba(47,169,140,.12);color:var(--brand);font-size:13px;font-weight:600;margin-bottom:20px}
.hero h1{font-size:clamp(30px,5vw,48px);letter-spacing:-.5px;margin-bottom:18px}
.hero h1 em{font-style:normal;color:var(--brand)}
.hero-sub{font-size:17px;color:var(--muted);max-width:520px;margin-bottom:28px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:30px}
.badge-row{display:flex;flex-wrap:wrap;gap:10px}
.badge{display:inline-flex;align-items:center;gap:7px;padding:7px 14px;border-radius:999px;background:#fff;border:1px solid var(--line);font-size:13px;color:#41504B;box-shadow:var(--sh-sm)}
.badge i{color:var(--cool);font-size:12px}
.hero-visual{position:relative}
.hero-visual img{border-radius:var(--r-card);box-shadow:0 24px 50px -28px rgba(16,32,28,.5);width:100%;height:340px;object-fit:cover;background:#E7E3D9}
@media(min-width:1024px){.hero-visual img{height:420px}}
.hero-float{position:absolute;left:-8px;bottom:-16px;background:#fff;border-radius:14px;padding:14px 18px;box-shadow:var(--sh-lg);border:1px solid var(--line);display:flex;align-items:center;gap:12px}
.hero-float .num{font-size:24px;font-weight:700;color:var(--brand);font-variant-numeric:tabular-nums}
.hero-float .lbl{font-size:12px;color:var(--muted);line-height:1.4}
@media(max-width:768px){
  .hero{padding:40px 0}
  .hero-visual{margin-top:24px}
  .hero-visual img{height:250px}
  .hero-float{left:8px;bottom:-14px;padding:11px 14px}
}

/* ---------- 锚点条 ---------- */
.anchor-wrap{position:sticky;top:68px;z-index:40;background:rgba(255,255,255,.92);backdrop-filter:blur(6px);border-bottom:1px solid var(--line)}
.anchor-bar{display:flex;gap:8px;overflow-x:auto;scrollbar-width:none;padding:8px 0}
.anchor-bar::-webkit-scrollbar{display:none}
.anchor-item{flex:1 0 auto;text-align:center;padding:9px 20px;border-radius:999px;font-size:14px;color:#41504B;white-space:nowrap;transition:background .18s,color .18s}
.anchor-item:hover{background:rgba(14,107,92,.08);color:var(--brand)}
.anchor-item.active{background:var(--brand);color:#fff;font-weight:600}
section[id]{scroll-margin-top:130px}

/* ---------- 通用板块 ---------- */
.section{padding:96px 0}
@media(max-width:768px){.section{padding:56px 0}}
.section-alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:720px;margin-bottom:44px}
.section-tag{display:inline-block;font-size:13px;font-weight:700;color:var(--accent);letter-spacing:2px;margin-bottom:12px}
.section-title{font-size:clamp(24px,3.2vw,34px);margin-bottom:14px}
.section-lead{color:var(--muted);font-size:16px}
.head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;flex-wrap:wrap;margin-bottom:40px}
.text-link{color:var(--brand);font-size:14px;font-weight:600;display:inline-flex;align-items:center;gap:6px}
.text-link:hover{color:var(--accent)}

/* ---------- 卖点区 ---------- */
.feature-grid{display:grid;gap:22px}
@media(min-width:1024px){.feature-grid{grid-template-columns:8fr 4fr;align-items:start}}
.feature-main{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-sm);transition:transform .2s,box-shadow .2s,border-color .2s}
.feature-main:hover{transform:translateY(-2px);box-shadow:var(--sh-lg);border-color:rgba(14,107,92,.3)}
.feature-main img{height:280px;width:100%;object-fit:cover;background:#E7E3D9}
.feature-main-body{padding:26px 28px 30px}
.feature-main h3{font-size:22px;margin-bottom:12px}
.feature-main p{color:var(--muted);font-size:15.5px}
.feature-side{display:grid;gap:22px}
@media(min-width:1024px){.feature-side{margin-top:34px}}
.feature-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:24px;box-shadow:var(--sh-sm);transition:transform .2s,box-shadow .2s,border-color .2s}
.feature-card:hover{transform:translateY(-2px);box-shadow:var(--sh-lg);border-color:rgba(14,107,92,.3)}
.feature-card .icon{width:44px;height:44px;border-radius:12px;background:rgba(14,107,92,.08);color:var(--brand);display:flex;align-items:center;justify-content:center;font-size:18px;margin-bottom:16px}
.feature-card h4{font-size:18px;margin-bottom:10px}
.feature-card p{font-size:14.5px;color:var(--muted);line-height:1.75}
.point-list{margin-top:22px;display:grid;gap:10px}
.point-list li{display:flex;gap:10px;align-items:flex-start;font-size:15px;color:#33403B}
.point-list i{color:var(--accent);margin-top:7px;font-size:12px}

/* ---------- 演示区 ---------- */
.steps-grid{display:grid;gap:36px}
@media(min-width:1024px){.steps-grid{grid-template-columns:5fr 7fr;align-items:center;gap:52px}}
.step-item{display:flex;gap:18px;position:relative;padding-bottom:30px}
.step-item:last-child{padding-bottom:0}
.step-item::before{content:"";position:absolute;left:21px;top:46px;bottom:0;width:1px;background:var(--line)}
.step-item:last-child::before{display:none}
.step-no{flex-shrink:0;width:44px;height:44px;border-radius:12px;border:1.5px solid var(--brand);color:var(--brand);display:flex;align-items:center;justify-content:center;font-weight:700;font-size:14px;font-variant-numeric:tabular-nums;background:#fff}
.step-item h4{font-size:17px;margin-bottom:6px}
.step-item p{font-size:14.5px;color:var(--muted);line-height:1.8}
.steps-visual img{border-radius:var(--r-card);height:380px;width:100%;object-fit:cover;box-shadow:var(--sh-lg);background:#E7E3D9}
@media(max-width:768px){.steps-visual img{height:240px;margin-top:24px}}

/* ---------- 最新信息 ---------- */
.news-grid{display:grid;gap:24px}
@media(min-width:1024px){.news-grid{grid-template-columns:6fr 6fr;align-items:start}}
.news-card{display:block;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-sm);transition:transform .2s,box-shadow .2s,border-color .2s}
.news-card:hover{transform:translateY(-2px);box-shadow:var(--sh-lg);border-color:rgba(14,107,92,.32)}
.news-card img{height:250px;width:100%;object-fit:cover;background:#E7E3D9}
.news-card-body{padding:24px 26px 26px}
.news-card h3{font-size:20px;line-height:1.45;margin-bottom:12px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;transition:color .18s}
.news-card:hover h3{color:var(--brand)}
.news-card p{color:var(--muted);font-size:14.5px;line-height:1.75;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-side{display:grid;gap:16px}
.news-row{display:flex;gap:16px;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:14px;box-shadow:var(--sh-sm);transition:transform .2s,box-shadow .2s,border-color .2s}
.news-row:hover{transform:translateY(-2px);box-shadow:var(--sh-lg);border-color:rgba(14,107,92,.32)}
.news-row img{width:96px;height:64px;object-fit:cover;border-radius:10px;flex-shrink:0;background:#E7E3D9}
.news-row h4{font-size:16px;line-height:1.45;margin-bottom:6px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-row:hover h4{color:var(--brand)}
.news-row p{font-size:13.5px;color:var(--muted);line-height:1.6;display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden}
.meta{display:flex;align-items:center;gap:8px;font-size:12.5px;color:var(--muted);margin-top:10px;flex-wrap:wrap}
.tag{display:inline-flex;align-items:center;padding:3px 10px;border-radius:999px;background:rgba(47,169,140,.14);color:#1D7A66;font-size:12px;font-weight:600}
.empty-state{background:#fff;border:1px dashed var(--line);border-radius:var(--r-card);padding:52px 24px;text-align:center}
.empty-state i{font-size:26px;color:var(--cool);margin-bottom:14px;display:block}
.empty-state p{color:var(--muted);font-size:15px;margin-bottom:18px}

/* ---------- 证据区 ---------- */
.stat-band{display:grid;gap:18px;grid-template-columns:repeat(2,1fr);margin-bottom:52px}
@media(min-width:768px){.stat-band{grid-template-columns:repeat(4,1fr)}}
.stat-item{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:24px;box-shadow:var(--sh-sm)}
.stat-num{font-size:36px;font-weight:700;color:var(--brand);font-variant-numeric:tabular-nums;line-height:1.2}
.stat-num small{font-size:16px;margin-left:2px}
.stat-lbl{font-size:14px;color:var(--muted);margin-top:6px}
.quote-grid{display:grid;gap:22px}
@media(min-width:1024px){.quote-grid{grid-template-columns:repeat(3,1fr)}}
.quote-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:26px;box-shadow:var(--sh-sm)}
@media(min-width:1024px){.quote-card:nth-child(2){transform:translateY(24px)}}
.quote-card .stars{color:var(--accent);font-size:13px;margin-bottom:14px;letter-spacing:2px}
.quote-card p{font-size:15px;color:#33403B;line-height:1.85;margin-bottom:18px}
.quote-who{display:flex;align-items:center;gap:12px;border-top:1px solid var(--line);padding-top:16px}
.quote-who .av{width:38px;height:38px;border-radius:50%;background:rgba(14,107,92,.12);color:var(--brand);display:flex;align-items:center;justify-content:center;font-weight:700;font-size:14px}
.quote-who .nm{font-size:14px;font-weight:600}
.quote-who .rl{font-size:12.5px;color:var(--muted)}

/* ---------- 价格 ---------- */
.price-grid{display:grid;gap:22px}
@media(min-width:1024px){.price-grid{grid-template-columns:repeat(3,1fr);align-items:start}}
.price-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:30px 26px;box-shadow:var(--sh-sm);position:relative;transition:transform .2s,box-shadow .2s}
.price-card:hover{transform:translateY(-2px);box-shadow:var(--sh-lg)}
.price-card.featured{border-color:rgba(14,107,92,.4);box-shadow:0 20px 40px -24px rgba(16,32,28,.35)}
.price-card.featured::before{content:"";position:absolute;left:0;right:0;top:0;height:3px;background:var(--brand);border-radius:var(--r-card) var(--r-card) 0 0}
.price-flag{position:absolute;right:22px;top:-12px;background:var(--accent);color:#fff;font-size:12px;font-weight:700;padding:4px 12px;border-radius:999px}
.price-name{font-size:18px;margin-bottom:8px}
.price-desc{font-size:14px;color:var(--muted);margin-bottom:18px;min-height:44px}
.price-value{font-size:34px;font-weight:700;color:var(--brand-deep);font-variant-numeric:tabular-nums}
.price-value span{font-size:14px;font-weight:400;color:var(--muted);margin-left:4px}
.price-list{margin:22px 0 26px;display:grid;gap:11px}
.price-list li{display:flex;gap:10px;font-size:14.5px;color:#33403B}
.price-list i{color:var(--cool);margin-top:6px;font-size:12px}
.price-card .btn{width:100%}
@media(max-width:1023px){
  .price-grid{gap:16px}
  .price-card{padding:22px}
  .price-value{font-size:28px}
}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:860px;margin:0 auto}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:14px;margin-bottom:12px;overflow:hidden;transition:border-color .2s,box-shadow .2s}
.faq-item.open{border-color:rgba(14,107,92,.35);box-shadow:var(--sh-sm)}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;text-align:left;padding:20px 22px;background:none;border:0;font-size:17px;font-weight:600;cursor:pointer;position:relative}
.faq-q::before{content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;background:var(--brand);opacity:0;transition:opacity .2s;border-radius:0 3px 3px 0}
.faq-item.open .faq-q::before{opacity:1}
.faq-q i{color:var(--brand);font-size:14px;transition:transform .2s;flex-shrink:0}
.faq-item.open .faq-q i{transform:rotate(180deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .24s ease}
.faq-a p{padding:0 22px 22px;font-size:15px;color:var(--muted);line-height:1.9}

/* ---------- CTA 带 ---------- */
.cta-band{background:var(--brand);color:#fff;padding:72px 0}
@media(max-width:768px){.cta-band{padding:52px 0}}
.cta-grid{display:grid;gap:40px}
@media(min-width:1024px){.cta-grid{grid-template-columns:6fr 6fr;align-items:center;gap:56px}}
.cta-band h2{font-size:clamp(24px,3.2vw,34px);margin-bottom:14px}
.cta-band .lead{color:#CFE4DE;font-size:16px;margin-bottom:26px;max-width:480px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}
.form-card{background:#fff;border-radius:var(--r-card);padding:28px;color:var(--ink);box-shadow:0 24px 50px -28px rgba(0,0,0,.5)}
.form-card h3{font-size:19px;margin-bottom:6px}
.form-card .hint{font-size:13.5px;color:var(--muted);margin-bottom:20px}
.form-grid{display:grid;gap:16px}
@media(min-width:768px){.form-grid{grid-template-columns:1fr 1fr}.form-grid .full{grid-column:1/-1}}
.field label{display:block;font-size:14px;font-weight:600;margin-bottom:7px}
.field input,.field select,.field textarea{width:100%;padding:11px 14px;border:1px solid var(--line);border-radius:var(--r-btn);background:#FCFBF8;font-size:15px;transition:border-color .18s,box-shadow .18s}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(14,107,92,.15)}
.field textarea{resize:vertical;min-height:88px}
.form-success{display:none;margin-top:16px;padding:12px 16px;border-radius:var(--r-btn);background:rgba(47,169,140,.14);color:#1D7A66;font-size:14px}
.form-success.show{display:block}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--brand-deep);color:#D9E3DF;padding:64px 0 0}
.footer-grid{display:grid;gap:36px}
@media(min-width:768px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1.2fr}}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .logo-mark{background:rgba(255,255,255,.12);box-shadow:none}
.footer-brand span{font-size:18px;font-weight:700;color:#fff}
.footer-col p{font-size:14px;color:#A9BDB7;line-height:1.85}
.footer-col h4{font-size:15px;color:#fff;margin-bottom:16px}
.footer-col li{margin-bottom:10px}
.footer-col a{font-size:14px;color:#A9BDB7;transition:color .18s}
.footer-col a:hover{color:#fff}
.footer-contact li{font-size:14px;color:#A9BDB7;display:flex;gap:10px;align-items:flex-start}
.footer-contact i{color:var(--cool);margin-top:7px;font-size:12px}
.footer-bottom{margin-top:52px;border-top:1px solid rgba(255,255,255,.12);padding:22px 0;display:flex;flex-wrap:wrap;gap:14px;justify-content:space-between;align-items:center;font-size:13px;color:#8FA6A0}
.footer-links{display:flex;flex-wrap:wrap;gap:18px}
.footer-links a:hover{color:#fff}

/* ---------- 浮动控件 ---------- */
.float-cta{position:fixed;right:28px;bottom:28px;z-index:70;display:none;align-items:center;gap:10px;padding:13px 22px;border-radius:999px;background:var(--accent);color:#fff;font-size:15px;font-weight:600;box-shadow:0 16px 34px -14px rgba(242,104,31,.7);opacity:0;transform:translateY(14px);pointer-events:none;transition:opacity .26s,transform .26s}
.float-cta.show{opacity:1;transform:translateY(0);pointer-events:auto}
.float-cta:hover{background:#da5a17}
@media(min-width:1024px){.float-cta{display:inline-flex}}
.to-top{position:fixed;right:32px;bottom:104px;z-index:70;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);background:#fff;color:var(--brand-deep);display:flex;align-items:center;justify-content:center;cursor:pointer;box-shadow:var(--sh-sm);opacity:0;pointer-events:none;transition:opacity .24s,transform .2s}
.to-top.show{opacity:1;pointer-events:auto}
.to-top:hover{transform:translateY(-2px);border-color:var(--brand);color:var(--brand)}
@media(max-width:1023px){
  .float-cta{display:flex;left:0;right:0;bottom:0;border-radius:0;justify-content:space-between;padding:13px 18px calc(13px + env(safe-area-inset-bottom));font-size:14px;box-shadow:0 -8px 24px -16px rgba(0,0,0,.4)}
  .float-cta .fc-btn{background:rgba(255,255,255,.2);padding:7px 14px;border-radius:999px;font-size:13px}
  .to-top{right:16px;bottom:82px;width:40px;height:40px}
}

/* roulang page: category1 */
:root{
  --c-primary:#0E6B5C;
  --c-primary-dark:#083F36;
  --c-accent:#F2681F;
  --c-cool:#2FA98C;
  --c-bg:#F6F4EF;
  --c-card:#FFFFFF;
  --c-line:#E2DED5;
  --c-text:#1B2320;
  --c-muted:#5B6663;
  --r-card:16px;
  --r-img:12px;
  --r-btn:10px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(16,32,28,.06);
  --sh-2:0 12px 28px -14px rgba(16,32,28,.22);
  --font:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC",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:16px;
  line-height:1.9;
  color:var(--c-text);
  background:var(--c-bg);
  font-variant-numeric:tabular-nums;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer;border:0;background:none}
h1,h2,h3,h4{margin:0;line-height:1.3;font-weight:700;letter-spacing:.2px}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
::selection{background:rgba(14,107,92,.18)}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:3px;border-radius:6px}

.container{max-width:1200px;margin:0 auto;padding:0 20px;width:100%}
@media(min-width:768px){.container{padding:0 24px}}
@media(min-width:1440px){.container{max-width:1280px}}

/* ---------- header ---------- */
.topbar{background:var(--c-primary-dark);color:#D9E3DF;font-size:13px;line-height:36px;height:36px;overflow:hidden}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:16px}
.topbar-links{display:flex;gap:18px}
.topbar-links a{color:#D9E3DF;transition:color .18s}
.topbar-links a:hover{color:#fff}
@media(max-width:900px){.topbar{display:none}}

.site-header{
  position:sticky;top:0;z-index:60;background:#fff;
  border-bottom:1px solid var(--c-line);transition:box-shadow .2s ease;
}
.site-header.scrolled{box-shadow:0 6px 20px -14px rgba(16,32,28,.35)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;height:68px}
.logo{display:flex;align-items:center;gap:10px}
.logo-mark{
  width:38px;height:38px;border-radius:11px;background:var(--c-primary);color:#fff;
  display:flex;align-items:center;justify-content:center;font-size:19px;font-weight:700;flex:0 0 auto;
}
.logo-text{display:block;font-size:17px;font-weight:700;line-height:1.2;color:var(--c-primary-dark)}
.logo-text span{color:var(--c-primary)}
.logo-sub{display:block;font-size:11px;color:var(--c-muted);line-height:1.4;letter-spacing:.6px}
.nav-links{display:flex;align-items:center;gap:6px}
.nav-link{
  padding:9px 14px;border-radius:var(--r-pill);font-size:15px;color:var(--c-text);
  transition:background .18s,color .18s;
}
.nav-link:hover{background:rgba(14,107,92,.08);color:var(--c-primary)}
.nav-link.active{background:rgba(14,107,92,.1);color:var(--c-primary);font-weight:600}
.nav-cta{
  margin-left:8px;display:inline-flex;align-items:center;gap:7px;
  padding:10px 18px;border-radius:var(--r-btn);font-size:15px;font-weight:600;
  background:var(--c-primary);color:#fff;box-shadow:var(--sh-1);
  transition:background .18s,transform .18s,box-shadow .18s;
}
.nav-cta:hover{background:var(--c-primary-dark);transform:translateY(-1px);box-shadow:var(--sh-2)}
.nav-cta:active{transform:translateY(0)}
.burger{
  display:none;width:42px;height:42px;border-radius:10px;border:1px solid var(--c-line);
  align-items:center;justify-content:center;font-size:18px;color:var(--c-primary-dark);background:#fff;
}
@media(max-width:1024px){
  .burger{display:flex}
  .nav-links{
    position:fixed;left:0;right:0;top:104px;bottom:0;background:#fff;
    flex-direction:column;align-items:stretch;gap:2px;padding:18px 20px 32px;
    overflow-y:auto;display:none;border-top:1px solid var(--c-line);
  }
  .nav-links.open{display:flex}
  .nav-link{padding:14px 12px;border-radius:12px;font-size:17px}
  .nav-cta{margin:14px 0 0;justify-content:center;padding:14px 18px}
}

/* ---------- hero ---------- */
.page-hero{
  position:relative;color:#fff;overflow:hidden;
  background-image:linear-gradient(100deg,rgba(8,63,54,.94) 0%,rgba(8,63,54,.78) 48%,rgba(14,107,92,.55) 100%),
    url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
}
.page-hero-inner{padding:78px 0 64px;max-width:800px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;letter-spacing:1px;
  background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.24);
  padding:6px 14px;border-radius:var(--r-pill);margin-bottom:20px;color:#EAF4F0;
}
.page-hero h1{
  font-size:clamp(30px,5vw,46px);line-height:1.25;color:#fff;margin-bottom:16px;
}
.page-hero h1 em{font-style:normal;color:#FFD9C2}
.hero-sub{font-size:17px;line-height:1.8;color:#DCEBE6;max-width:640px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:var(--r-btn);font-size:15px;font-weight:600;line-height:1.2;
  transition:background .18s,color .18s,transform .18s,box-shadow .18s,border-color .18s;
}
.btn-primary{background:var(--c-accent);color:#fff;box-shadow:0 10px 24px -12px rgba(242,104,31,.85)}
.btn-primary:hover{background:#D9560F;transform:translateY(-1px)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{border:1px solid rgba(255,255,255,.55);color:#fff;background:rgba(255,255,255,.06)}
.btn-ghost:hover{background:rgba(255,255,255,.16);transform:translateY(-1px)}
.btn-outline{border:1px solid var(--c-primary);color:var(--c-primary);background:#fff}
.btn-outline:hover{background:rgba(14,107,92,.08);transform:translateY(-1px)}
.btn-solid{background:var(--c-primary);color:#fff}
.btn-solid:hover{background:var(--c-primary-dark);transform:translateY(-1px)}

/* ---------- info bar ---------- */
.info-bar{margin-top:-30px;position:relative;z-index:5}
.info-grid{
  display:grid;grid-template-columns:repeat(3,1fr);gap:18px;background:#fff;
  border:1px solid var(--c-line);border-radius:var(--r-card);padding:22px 24px;box-shadow:var(--sh-2);
}
.info-item{display:flex;gap:12px;align-items:flex-start}
.info-item i{
  width:38px;height:38px;border-radius:11px;background:rgba(47,169,140,.14);color:var(--c-primary);
  display:flex;align-items:center;justify-content:center;font-size:16px;flex:0 0 auto;
}
.info-item h3{font-size:15px;margin-bottom:2px}
.info-item p{font-size:13px;color:var(--c-muted);line-height:1.7}
@media(max-width:860px){.info-grid{grid-template-columns:1fr;gap:14px}}

/* ---------- section ---------- */
.section{padding:96px 0}
.section-tight{padding:56px 0}
@media(max-width:768px){.section{padding:56px 0}.section-tight{padding:38px 0}}
.sec-head{max-width:720px;margin-bottom:38px}
.sec-head h2{font-size:clamp(24px,3.2vw,32px);margin-bottom:12px}
.sec-head p{color:var(--c-muted);font-size:16px}
.sec-tag{
  display:inline-block;font-size:12px;letter-spacing:1.5px;color:var(--c-primary);
  background:rgba(14,107,92,.09);padding:5px 12px;border-radius:var(--r-pill);margin-bottom:14px;font-weight:600;
}

/* ---------- split ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:52px;align-items:center}
.split + .split{margin-top:76px}
.split-media img{
  width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--r-img);
  border:1px solid var(--c-line);background:#EDE9E0;box-shadow:var(--sh-2);
}
.split-body h2{font-size:clamp(22px,2.6vw,30px);margin-bottom:16px}
.split-body p{color:var(--c-muted);margin-bottom:16px}
.split-body p strong{color:var(--c-text)}
.mini-list{margin-top:22px;display:grid;gap:10px}
.mini-list li{display:flex;gap:10px;align-items:flex-start;font-size:15px;color:var(--c-text)}
.mini-list i{color:var(--c-accent);margin-top:7px;font-size:12px}
@media(max-width:900px){
  .split{grid-template-columns:1fr;gap:26px}
  .split-media{order:-1}
  .split.reverse .split-media{order:0}
}

/* ---------- checklist ---------- */
.checklist{padding:0;border-top:1px solid var(--c-line)}
.check-row{
  display:grid;grid-template-columns:78px 1fr;gap:22px;align-items:flex-start;
  padding:26px 8px;border-bottom:1px solid var(--c-line);transition:background .18s;
}
.check-row:hover{background:#fff}
.check-num{
  font-size:26px;font-weight:700;color:var(--c-primary);font-variant-numeric:tabular-nums;
  border:1px solid rgba(14,107,92,.3);border-radius:12px;width:56px;height:56px;
  display:flex;align-items:center;justify-content:center;line-height:1;
}
.check-body h3{font-size:19px;margin-bottom:6px}
.check-body p{color:var(--c-muted);font-size:15px}
@media(max-width:640px){
  .check-row{grid-template-columns:1fr;gap:14px;padding:22px 4px}
  .check-num{width:48px;height:48px;font-size:22px}
}

/* ---------- faq ---------- */
.faq-wrap{max-width:880px;margin:0 auto;border-top:1px solid var(--c-line)}
.faq-item{border-bottom:1px solid var(--c-line)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:22px 6px;text-align:left;font-size:17px;font-weight:600;color:var(--c-text);
  transition:color .18s;
}
.faq-q:hover{color:var(--c-primary)}
.faq-q i{transition:transform .2s ease;color:var(--c-primary);font-size:14px;flex:0 0 auto}
.faq-item.open .faq-q{color:var(--c-primary)}
.faq-item.open .faq-q i{transform:rotate(180deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .2s ease}
.faq-a-inner{
  padding:0 6px 22px;color:var(--c-muted);font-size:15px;
  border-left:3px solid var(--c-primary);padding-left:16px;margin-left:6px;
}

/* ---------- related ---------- */
.related-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.rel-card{
  display:flex;gap:16px;align-items:center;background:#fff;border:1px solid var(--c-line);
  border-radius:var(--r-card);padding:16px;box-shadow:var(--sh-1);
  transition:transform .18s,border-color .18s,box-shadow .18s;
}
.rel-card:hover{transform:translateY(-2px);border-color:rgba(14,107,92,.3);box-shadow:var(--sh-2)}
.rel-card img{width:88px;height:64px;object-fit:cover;border-radius:10px;background:#EDE9E0;flex:0 0 auto}
.rel-card h3{font-size:17px;margin-bottom:4px;transition:color .18s}
.rel-card:hover h3{color:var(--c-primary)}
.rel-card p{font-size:13px;color:var(--c-muted)}
@media(max-width:760px){.related-grid{grid-template-columns:1fr}}

/* ---------- cta band ---------- */
.cta-band{background:var(--c-primary);color:#fff}
.cta-inner{
  padding:64px 0;display:flex;flex-wrap:wrap;gap:24px;align-items:center;justify-content:space-between;
}
.cta-inner h2{font-size:clamp(22px,2.8vw,30px);margin-bottom:10px;color:#fff}
.cta-inner p{color:#DDEDE8;font-size:16px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}
.btn-white{background:#fff;color:var(--c-primary-dark)}
.btn-white:hover{background:#F0F5F2;transform:translateY(-1px)}
.btn-line{border:1px solid rgba(255,255,255,.6);color:#fff}
.btn-line:hover{background:rgba(255,255,255,.14);transform:translateY(-1px)}

/* ---------- form ---------- */
.form-card{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:32px;box-shadow:var(--sh-1);
}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.field{display:flex;flex-direction:column;gap:7px}
.field.wide{grid-column:1/-1}
.field label{font-size:14px;color:var(--c-text);font-weight:600}
.field input,.field select,.field textarea{
  border:1px solid var(--c-line);border-radius:10px;padding:12px 14px;font-size:15px;
  background:#FCFBF8;transition:border-color .18s,box-shadow .18s;
}
.field textarea{min-height:112px;resize:vertical;line-height:1.7}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(14,107,92,.15);background:#fff;
}
.form-actions{grid-column:1/-1;display:flex;flex-wrap:wrap;gap:14px;align-items:center;margin-top:6px}
.form-note{font-size:13px;color:var(--c-muted)}
.form-success{
  display:none;margin-top:18px;padding:13px 16px;border-radius:10px;font-size:14px;
  background:rgba(47,169,140,.13);border:1px solid rgba(47,169,140,.35);color:var(--c-primary-dark);
}
.form-success.show{display:block}
@media(max-width:680px){.form-grid{grid-template-columns:1fr}.form-card{padding:22px}}

/* ---------- footer ---------- */
.site-footer{background:var(--c-primary-dark);color:#D9E3DF;padding:66px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:36px}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:700;color:#fff;margin-bottom:14px}
.footer-brand .logo-mark{width:34px;height:34px;font-size:17px;background:var(--c-cool)}
.footer-col p{font-size:14px;line-height:1.85;color:#B7C7C2;max-width:320px}
.footer-col h4{font-size:15px;color:#fff;margin-bottom:16px}
.footer-col ul{display:grid;gap:10px}
.footer-col ul a{font-size:14px;color:#C6D5D0;transition:color .18s}
.footer-col ul a:hover{color:#fff}
.footer-contact li{display:flex;gap:10px;font-size:14px;color:#B7C7C2;align-items:flex-start}
.footer-contact i{margin-top:6px;color:var(--c-cool);font-size:13px}
.footer-bottom{
  margin-top:52px;border-top:1px solid rgba(255,255,255,.14);padding:20px 0 26px;
  display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between;font-size:13px;color:#9FB4AE;
}
.footer-links{display:flex;flex-wrap:wrap;gap:16px}
.footer-links a{color:#9FB4AE;transition:color .18s}
.footer-links a:hover{color:#fff}
@media(max-width:900px){.footer-grid{grid-template-columns:1fr 1fr;gap:28px}}
@media(max-width:560px){.footer-grid{grid-template-columns:1fr}}

/* ---------- to top ---------- */
.to-top{
  position:fixed;right:22px;bottom:22px;width:46px;height:46px;border-radius:14px;
  background:#fff;border:1px solid var(--c-line);color:var(--c-primary);box-shadow:var(--sh-2);
  display:flex;align-items:center;justify-content:center;font-size:16px;
  opacity:0;pointer-events:none;transition:opacity .2s,transform .2s;z-index:70;
}
.to-top.show{opacity:1;pointer-events:auto}
.to-top:hover{transform:translateY(-2px);border-color:rgba(14,107,92,.35)}
@media(max-width:560px){.to-top{right:14px;bottom:14px}}

/* roulang page: article */
:root{
  --primary:#0E6B5C;
  --primary-dark:#083F36;
  --accent:#F2681F;
  --cool:#2FA98C;
  --bg:#F6F4EF;
  --card:#FFFFFF;
  --line:#E2DED5;
  --text:#1B2320;
  --muted:#5B6663;
  --r-card:16px;
  --r-img:12px;
  --r-btn:10px;
  --shadow-sm:0 1px 2px rgba(16,32,28,.06);
  --shadow-md:0 12px 28px -14px rgba(16,32,28,.22);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  background:var(--bg);
  color:var(--text);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
ul,ol{list-style:none;margin:0;padding:0}
h1,h2,h3,h4{margin:0;line-height:1.3;font-weight:800}
p{margin:0}
a:focus-visible,button:focus-visible,.btn:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media(min-width:768px){.container{padding:0 24px}}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:#FFFFFF;
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-header.scrolled{box-shadow:0 12px 26px -20px rgba(16,32,28,.5)}
.nav-inner{display:flex;align-items:center;gap:20px;height:72px}
.logo{display:flex;align-items:center;gap:12px;flex-shrink:0}
.logo-mark{
  width:40px;height:40px;border-radius:12px;
  background:linear-gradient(135deg,var(--primary),var(--primary-dark));
  color:#fff;display:flex;align-items:center;justify-content:center;
  font-weight:800;font-size:19px;letter-spacing:1px;
  box-shadow:0 8px 18px -12px rgba(8,63,54,.9);
}
.logo-text{display:block;font-size:19px;font-weight:800;letter-spacing:.5px;line-height:1.25}
.logo-text span{color:var(--primary)}
.logo-sub{display:block;font-size:11px;color:var(--muted);letter-spacing:2.4px;line-height:1.4}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-link{
  padding:9px 14px;border-radius:999px;font-size:15px;color:var(--text);
  transition:background .2s ease,color .2s ease;white-space:nowrap;
}
.nav-link:hover{background:rgba(14,107,92,.08);color:var(--primary)}
.nav-link.active{background:rgba(14,107,92,.12);color:var(--primary);font-weight:700}
.nav-cta{
  display:inline-flex;align-items:center;gap:8px;
  margin-left:10px;padding:11px 20px;border-radius:999px;
  background:var(--primary);color:#fff;font-size:14.5px;font-weight:600;
  transition:background .2s ease,transform .15s ease;white-space:nowrap;
}
.nav-cta:hover{background:var(--primary-dark);transform:translateY(-1px)}
.burger{
  display:none;margin-left:auto;width:44px;height:44px;border-radius:12px;
  border:1px solid var(--line);color:var(--primary);font-size:18px;
  align-items:center;justify-content:center;
}
.burger:hover{background:rgba(14,107,92,.08)}
@media(max-width:1024px){
  .burger{display:flex}
  .nav-links{
    position:fixed;left:0;right:0;top:72px;bottom:0;
    background:#fff;flex-direction:column;align-items:stretch;
    gap:6px;padding:22px 20px 40px;margin:0;
    transform:translateX(102%);transition:transform .3s ease;
    overflow-y:auto;border-top:1px solid var(--line);
  }
  .nav-links.open{transform:translateX(0)}
  .nav-link{font-size:17px;padding:15px 16px;border-radius:12px;border-bottom:1px solid var(--line)}
  .nav-cta{margin:16px 0 0;justify-content:center;padding:15px 20px;font-size:16px}
}

/* ---------- breadcrumb ---------- */
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--muted);padding-top:22px;
}
.breadcrumb a{color:var(--muted);transition:color .2s ease}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb .sep{color:rgba(91,102,99,.45)}
.breadcrumb .current{
  color:var(--text);max-width:min(420px,60vw);
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}

/* ---------- article head ---------- */
.article-hero{
  padding:22px 0 42px;
  background:linear-gradient(180deg,rgba(14,107,92,.075),rgba(246,244,239,0) 78%);
  border-bottom:1px solid var(--line);
}
.article-head{max-width:880px}
.kicker{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;font-weight:700;letter-spacing:.1em;
  color:var(--primary);background:rgba(14,107,92,.1);
  padding:6px 14px;border-radius:999px;
}
.article-head h1{
  font-size:clamp(28px,4.2vw,42px);
  line-height:1.28;letter-spacing:-.4px;
  margin:18px 0 16px;
}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px 18px;font-size:13.5px;color:var(--muted)}
.meta-row i{margin-right:5px;color:var(--cool)}
.tag-cat{
  background:var(--accent);color:#fff;font-weight:600;
  padding:4px 13px;border-radius:999px;font-size:12.5px;letter-spacing:.04em;
}

/* ---------- article body ---------- */
.article-section{padding:46px 0 72px}
.article-layout{
  display:grid;
  grid-template-columns:minmax(0,760px) 264px;
  gap:48px;justify-content:center;align-items:start;
}
.article-card{
  background:#fff;border:1px solid var(--line);
  border-radius:var(--r-card);padding:34px;
  box-shadow:var(--shadow-sm);
}
@media(max-width:640px){.article-card{padding:22px 16px;border-radius:14px}}
.article-body{font-size:17px;line-height:1.9;color:var(--text);word-break:break-word}
.article-body p{margin:0 0 18px}
.article-body h2{
  font-size:26px;line-height:1.36;font-weight:800;
  margin:38px 0 16px;padding-left:14px;
  border-left:4px solid var(--primary);
}
.article-body h3{font-size:20px;font-weight:700;margin:28px 0 12px}
.article-body h4{font-size:17px;font-weight:700;margin:22px 0 10px}
.article-body ul,.article-body ol{margin:0 0 18px;padding-left:22px}
.article-body ul{list-style:disc}
.article-body ol{list-style:decimal}
.article-body li{line-height:1.85;margin-bottom:8px}
.article-body blockquote{
  background:rgba(14,107,92,.06);
  border-left:3px solid var(--primary);
  padding:16px 18px;margin:22px 0;
  border-radius:0 var(--r-img) var(--r-img) 0;
  color:var(--muted);font-size:16px;
}
.article-body img{
  max-width:100%;border-radius:var(--r-img);
  margin:22px auto;box-shadow:var(--shadow-sm);
}
.article-body figure{margin:22px 0}
.article-body figcaption{font-size:13px;color:var(--muted);text-align:center;margin-top:10px}
.article-body a{color:var(--primary);text-decoration:underline;text-underline-offset:3px}
.article-body a:hover{color:var(--accent)}
.article-body table{
  width:100%;border-collapse:collapse;margin:22px 0;font-size:15px;
  font-variant-numeric:tabular-nums;
}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 12px;text-align:left}
.article-body th{background:rgba(14,107,92,.08);font-weight:700}
.article-body tbody tr:nth-child(even){background:rgba(226,222,213,.32)}
.article-body code{
  background:rgba(226,222,213,.55);border-radius:6px;
  padding:2px 6px;font-size:14.5px;
}
.article-body hr{border:0;border-top:1px solid var(--line);margin:32px 0}

/* tags */
.tag-row{
  display:flex;flex-wrap:wrap;gap:10px;
  margin-top:34px;padding-top:24px;border-top:1px solid var(--line);
}
.tag{
  font-size:13px;padding:6px 15px;border-radius:999px;
  background:rgba(47,169,140,.13);color:#1D6F5C;
  border:1px solid rgba(47,169,140,.3);
  transition:background .2s ease,color .2s ease,border-color .2s ease;
}
.tag:hover{background:var(--primary);color:#fff;border-color:var(--primary)}

/* empty state */
.empty-state{
  text-align:center;padding:64px 22px;
  background:#fff;border:1px dashed var(--line);
  border-radius:var(--r-card);box-shadow:var(--shadow-sm);
}
.empty-state i{font-size:36px;color:var(--cool)}
.empty-state h2{font-size:22px;margin:18px 0 10px}
.empty-state p{font-size:14.5px;color:var(--muted);margin-bottom:24px}

/* aside */
.article-side{position:sticky;top:96px;display:grid;gap:18px}
.side-card{
  background:#fff;border:1px solid var(--line);
  border-radius:var(--r-card);padding:18px 18px 16px;box-shadow:var(--shadow-sm);
}
.side-card h3{
  font-size:15px;margin-bottom:12px;
  display:flex;align-items:center;gap:8px;letter-spacing:.03em;
}
.side-card h3 i{color:var(--accent);font-size:13px}
.side-card p{font-size:13.5px;color:var(--muted);line-height:1.8}
.toc-list a{
  display:block;font-size:13.5px;color:var(--muted);
  padding:7px 0 7px 12px;border-left:2px solid var(--line);
  transition:color .2s ease,border-color .2s ease,background .2s ease;
  line-height:1.6;
}
.toc-list a:hover{color:var(--primary);border-color:var(--primary);background:rgba(14,107,92,.05)}
.toc-empty{display:none}
.side-links li:last-child a{border-bottom:0}
.side-links a{
  display:flex;justify-content:space-between;align-items:center;
  font-size:14px;padding:10px 0;color:var(--muted);
  border-bottom:1px dashed var(--line);transition:color .2s ease,padding-left .2s ease;
}
.side-links a:hover{color:var(--primary);padding-left:4px}
.side-links a i{font-size:11px;opacity:.6}
@media(max-width:1279px){
  .article-layout{grid-template-columns:minmax(0,860px);justify-content:center}
  .article-side{display:none}
}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 24px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1.2;
  border:1px solid transparent;
  transition:background .2s ease,color .2s ease,transform .15s ease,box-shadow .2s ease,border-color .2s ease;
}
.btn:active{transform:translateY(0)}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 10px 22px -14px rgba(8,63,54,.85)}
.btn-primary:hover{background:var(--primary-dark);transform:translateY(-1px)}
.btn-accent{background:var(--accent);color:#fff}
.btn-accent:hover{background:#D95A15;transform:translateY(-1px)}
.btn-outline{border-color:rgba(14,107,92,.35);color:var(--primary);background:#fff}
.btn-outline:hover{background:rgba(14,107,92,.07);transform:translateY(-1px)}
.btn-ghost{border-color:rgba(255,255,255,.42);color:#fff}
.btn-ghost:hover{background:rgba(255,255,255,.13);transform:translateY(-1px)}

/* ---------- section head ---------- */
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;
  gap:20px;margin-bottom:32px;flex-wrap:wrap;
}
.section-head h2{font-size:clamp(24px,3.2vw,34px);line-height:1.3;margin-top:14px}
.more-link{
  display:inline-flex;align-items:center;gap:8px;
  font-size:14px;font-weight:600;color:var(--primary);
}
.more-link:hover{color:var(--accent)}

/* ---------- related ---------- */
.related-section{
  background:#fff;border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);padding:76px 0;
}
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
@media(max-width:900px){.related-grid{grid-template-columns:1fr;gap:18px}}
.rel-card{
  display:flex;flex-direction:column;overflow:hidden;
  background:var(--bg);border:1px solid var(--line);border-radius:var(--r-card);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.rel-card:hover{transform:translateY(-2px);border-color:rgba(14,107,92,.35);box-shadow:var(--shadow-md)}
.rel-card img{width:100%;aspect-ratio:16/9;object-fit:cover;background:#E7E3DA}
.rel-body{padding:18px 20px 22px}
.rel-body h3{font-size:17px;line-height:1.5;transition:color .2s ease}
.rel-card:hover .rel-body h3{color:var(--primary)}
.rel-body p{
  font-size:13.5px;color:var(--muted);margin-top:10px;line-height:1.7;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.rel-meta{display:flex;gap:12px;align-items:center;font-size:12.5px;color:var(--muted);margin-top:14px}
.rel-meta .dot{width:4px;height:4px;border-radius:50%;background:rgba(91,102,99,.5)}

/* ---------- cta band ---------- */
.cta-band{
  position:relative;overflow:hidden;
  background:var(--primary-dark);color:#fff;
  padding:78px 0;text-align:center;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background:url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  opacity:.14;
}
.cta-band .container{position:relative;z-index:1}
.cta-band h2{font-size:clamp(24px,3.1vw,32px);color:#fff}
.cta-band p{max-width:640px;margin:16px auto 30px;font-size:15.5px;color:#B9CFC9;line-height:1.9}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:center}

/* ---------- to top ---------- */
.to-top{
  position:fixed;right:22px;bottom:26px;z-index:70;
  width:46px;height:46px;border-radius:14px;
  background:#fff;border:1px solid var(--line);color:var(--primary);
  display:none;align-items:center;justify-content:center;
  box-shadow:var(--shadow-md);transition:background .2s ease,transform .15s ease;
}
.to-top.show{display:flex}
.to-top:hover{background:rgba(14,107,92,.08);transform:translateY(-2px)}
@media(max-width:600px){.to-top{right:16px;bottom:18px;width:42px;height:42px}}

/* ---------- footer ---------- */
.site-footer{background:var(--primary-dark);color:#D9E3DF;padding:64px 0 26px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:36px}
@media(max-width:960px){.footer-grid{grid-template-columns:1fr 1fr;gap:30px}}
@media(max-width:560px){.footer-grid{grid-template-columns:1fr}}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:800;color:#fff;margin-bottom:14px}
.footer-brand .logo-mark{width:34px;height:34px;border-radius:10px;font-size:16px}
.footer-col p{font-size:13.5px;line-height:1.85;color:#A9BFB9}
.footer-col h4{font-size:14.5px;color:#fff;margin-bottom:16px;letter-spacing:.06em}
.footer-col ul li{margin-bottom:10px}
.footer-col ul li a{font-size:13.5px;color:#B9CFC9;transition:color .2s ease,padding-left .2s ease}
.footer-col ul li a:hover{color:#fff;padding-left:4px}
.footer-contact li{display:flex;gap:10px;font-size:13.5px;color:#B9CFC9;line-height:1.75}
.footer-contact li i{color:var(--cool);margin-top:6px;font-size:12.5px}
.footer-bottom{
  margin-top:42px;padding-top:22px;
  border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;gap:14px;justify-content:space-between;
  font-size:12.5px;color:#8FA9A3;
}
.footer-links{display:flex;flex-wrap:wrap;gap:16px}
.footer-links a{color:#8FA9A3;transition:color .2s ease}
.footer-links a:hover{color:#fff}

/* roulang page: category2 */
:root{
  --primary:#0E6B5C;
  --primary-dark:#083F36;
  --primary-soft:rgba(14,107,92,.10);
  --accent:#F2681F;
  --cool:#2FA98C;
  --bg:#F6F4EF;
  --card:#FFFFFF;
  --line:#E2DED5;
  --text:#1B2320;
  --muted:#5B6663;
  --radius-card:16px;
  --radius-img:12px;
  --radius-btn:10px;
  --shadow-sm:0 1px 2px rgba(16,32,28,.06);
  --shadow-md:0 12px 28px -14px rgba(16,32,28,.22);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:96px}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  background:var(--bg);
  color:var(--text);
  font-size:16px;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
ul,ol{margin:0}
h1,h2,h3,h4,p{margin:0}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media(min-width:768px){.container{padding:0 24px}}
@media(min-width:1440px){.container{max-width:1240px}}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;background:#fff;
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:0 10px 26px -20px rgba(16,32,28,.75)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;height:74px}
.logo{display:flex;align-items:center;gap:10px;flex:none}
.logo-mark{
  width:40px;height:40px;border-radius:12px;background:var(--primary);color:#fff;
  display:grid;place-items:center;font-size:20px;font-weight:700;flex:none;
  box-shadow:0 8px 18px -10px rgba(14,107,92,.95);
}
.logo-text{display:block;font-size:18px;font-weight:800;line-height:1.2;letter-spacing:.5px;color:var(--primary-dark)}
.logo-text span{color:var(--primary)}
.logo-sub{display:block;font-size:11px;color:var(--muted);letter-spacing:1.6px;line-height:1.5}
.nav-links{display:none;align-items:center;gap:4px}
.nav-link{
  padding:9px 14px;border-radius:999px;font-size:15px;color:var(--muted);
  transition:background .2s ease,color .2s ease;white-space:nowrap;
}
.nav-link:hover{color:var(--primary);background:rgba(14,107,92,.07)}
.nav-link.active{color:var(--primary);background:var(--primary-soft);font-weight:600}
.nav-cta{
  margin-left:10px;display:inline-flex;align-items:center;gap:8px;
  padding:10px 18px;border-radius:var(--radius-btn);
  background:var(--primary);color:#fff;font-size:15px;font-weight:600;
  transition:background .2s ease,transform .2s ease;white-space:nowrap;
}
.nav-cta:hover{background:var(--primary-dark);transform:translateY(-1px)}
.nav-cta:active{transform:none}
.burger{
  display:grid;place-items:center;width:42px;height:42px;border-radius:10px;
  border:1px solid var(--line);color:var(--primary-dark);font-size:18px;flex:none;
  transition:background .2s ease;
}
.burger:hover{background:var(--primary-soft)}
@media(min-width:1024px){
  .nav-links{display:flex}
  .burger{display:none}
}
@media(max-width:1023.98px){
  .nav-links{
    display:flex;flex-direction:column;align-items:stretch;gap:0;
    position:fixed;left:0;right:0;top:74px;bottom:0;
    background:#fff;padding:20px 24px 44px;
    transform:translateX(100%);transition:transform .28s ease;
    overflow-y:auto;overscroll-behavior:contain;z-index:55;
  }
  .nav-links.open{transform:translateX(0)}
  .nav-link{padding:16px 4px;border-bottom:1px solid var(--line);border-radius:0;font-size:17px}
  .nav-cta{margin:22px 0 0;justify-content:center;padding:14px}
}

/* ---------- Hero ---------- */
.cat-hero{position:relative;background:var(--primary-dark);color:#fff;overflow:hidden}
.hero-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.3}
.cat-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(118deg,rgba(8,63,54,.94) 0%,rgba(14,107,92,.74) 58%,rgba(8,63,54,.9) 100%);
}
.cat-hero .container{position:relative;z-index:2;padding-top:56px;padding-bottom:60px}
@media(min-width:768px){.cat-hero .container{padding-top:76px;padding-bottom:80px}}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.7)}
.crumb a{color:rgba(255,255,255,.86);transition:color .2s ease}
.crumb a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px}
.crumb .sep{opacity:.45}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;margin-top:22px;
  padding:6px 14px;border-radius:999px;background:rgba(255,255,255,.14);
  border:1px solid rgba(255,255,255,.24);font-size:13px;color:#EAF3EF;letter-spacing:.5px;
}
.cat-hero h1{
  font-size:clamp(28px,4.4vw,42px);line-height:1.28;font-weight:800;
  letter-spacing:-.5px;color:#fff;margin:16px 0 16px;max-width:840px;
}
.hero-lead{font-size:16.5px;line-height:1.9;color:rgba(255,255,255,.87);max-width:660px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-facts{
  display:grid;gap:1px;margin-top:36px;border-radius:14px;overflow:hidden;
  background:rgba(255,255,255,.16);
}
@media(min-width:768px){.hero-facts{grid-template-columns:repeat(3,1fr);max-width:760px}}
.hero-fact{background:rgba(8,63,54,.62);padding:16px 20px}
.hero-fact span{display:block;font-size:12.5px;letter-spacing:1.2px;color:rgba(255,255,255,.62);margin-bottom:4px}
.hero-fact strong{font-size:16px;font-weight:700;color:#fff;font-variant-numeric:tabular-nums}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 24px;border-radius:var(--radius-btn);border:1px solid transparent;
  font-size:15.5px;font-weight:600;line-height:1.2;cursor:pointer;
  transition:background .2s ease,color .2s ease,transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 12px 24px -14px rgba(242,104,31,.95)}
.btn-primary:hover{background:#d75a17;transform:translateY(-1px)}
.btn-primary:active{transform:none}
.btn-ghost{border-color:rgba(255,255,255,.5);color:#fff}
.btn-ghost:hover{background:rgba(255,255,255,.13)}
.btn-outline{border-color:var(--primary);color:var(--primary);background:#fff}
.btn-outline:hover{background:var(--primary-soft)}

/* ---------- Sections ---------- */
.section{padding:60px 0}
@media(min-width:768px){.section{padding:88px 0}}
.section-alt{background:#fff}
.section-head{max-width:780px;margin-bottom:36px}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;font-size:13px;font-weight:700;
  letter-spacing:2px;color:var(--primary);margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:2px;border-radius:2px;background:var(--accent)}
.sec-title{
  font-size:clamp(24px,3.2vw,34px);line-height:1.32;font-weight:800;
  letter-spacing:-.4px;color:var(--primary-dark);margin-bottom:14px;
}
.sec-lead{font-size:16.5px;line-height:1.9;color:var(--muted)}

/* ---------- Two column text / image ---------- */
.two-col{display:grid;gap:30px;align-items:center}
@media(min-width:900px){.two-col{grid-template-columns:1fr 1fr;gap:56px}}
.two-col .col-media img{
  width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--radius-img);
  box-shadow:var(--shadow-md);background:#EDE9E0;
}
@media(min-width:900px){
  .two-col.reverse .col-text{order:2}
  .two-col.reverse .col-media{order:1}
}
.col-text h3{
  font-size:clamp(20px,2.4vw,26px);line-height:1.42;font-weight:800;
  color:var(--primary-dark);margin-bottom:16px;
}
.col-text p{font-size:16.5px;line-height:1.9;color:#3A4442;margin-bottom:16px}
.col-text p:last-child{margin-bottom:0}
.note-line{
  margin-top:18px;padding:13px 16px;border-left:3px solid var(--accent);
  background:rgba(242,104,31,.07);border-radius:0 10px 10px 0;
  font-size:15px;line-height:1.8;color:#6A4A33;
}
.figure-cap{font-size:13px;color:var(--muted);text-align:center;margin-top:10px}

/* ---------- Rank / point list ---------- */
.rank-list{list-style:none;padding:0;display:flex;flex-direction:column;gap:12px}
.rank-item{
  display:flex;gap:18px;align-items:flex-start;
  background:#fff;border:1px solid var(--line);border-radius:14px;
  padding:20px 22px;box-shadow:var(--shadow-sm);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.rank-item:hover{
  transform:translateY(-2px);border-color:rgba(14,107,92,.35);
  box-shadow:var(--shadow-md);
}
.rank-num{
  flex:none;width:42px;height:42px;border-radius:11px;
  border:1.5px solid var(--cool);background:rgba(47,169,140,.09);
  color:var(--primary);display:grid;place-items:center;
  font-size:15px;font-weight:800;font-variant-numeric:tabular-nums;
}
.rank-body h3{font-size:18px;font-weight:700;color:var(--primary-dark);line-height:1.5;margin-bottom:6px}
.rank-body p{font-size:15.5px;line-height:1.82;color:var(--muted)}
.rank-item:hover .rank-body h3{color:var(--primary)}

/* ---------- Scene cards ---------- */
.scene-grid{display:grid;gap:24px}
@media(min-width:820px){
  .scene-grid{grid-template-columns:1fr 1fr;gap:32px;align-items:start}
  .scene-grid .scene-card:nth-child(2){margin-top:52px}
}
.scene-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:28px;box-shadow:var(--shadow-sm);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.scene-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-md);border-color:rgba(14,107,92,.3)}
.scene-tag{
  display:inline-flex;align-items:center;gap:6px;padding:5px 12px;border-radius:999px;
  background:rgba(47,169,140,.12);color:#176B57;font-size:12.5px;font-weight:700;letter-spacing:.6px;
}
.scene-card h3{font-size:20px;font-weight:800;color:var(--primary-dark);margin:14px 0 12px;line-height:1.5}
.scene-card p{font-size:15.5px;line-height:1.85;color:var(--muted);margin-bottom:12px}
.scene-card p:last-child{margin-bottom:0}
.scene-card ul{list-style:none;padding:0;display:flex;flex-direction:column;gap:9px;margin-top:16px}
.scene-card li{display:flex;gap:10px;font-size:15px;color:#3A4442;line-height:1.7}
.scene-card li i{color:var(--cool);margin-top:6px;font-size:12px}

/* ---------- FAQ ---------- */
.faq-list{
  max-width:880px;margin:0 auto;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-sm);
}
.faq-item + .faq-item{border-top:1px solid var(--line)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 22px;text-align:left;font-size:17.5px;font-weight:600;
  color:var(--primary-dark);line-height:1.6;transition:background .2s ease,box-shadow .2s ease;
}
.faq-q:hover{background:rgba(14,107,92,.05)}
.faq-item.open .faq-q{box-shadow:inset 3px 0 0 var(--accent)}
.chev{
  flex:none;width:28px;height:28px;border-radius:50%;display:grid;place-items:center;
  background:rgba(14,107,92,.09);color:var(--primary);font-size:12px;
  transition:transform .25s ease,background .25s ease,color .25s ease;
}
.faq-item.open .chev{transform:rotate(180deg);background:var(--primary);color:#fff}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease}
.faq-a p{padding:0 22px 22px;font-size:15.5px;line-height:1.9;color:var(--muted)}

/* ---------- Category cards ---------- */
.cat-grid{display:grid;gap:20px;grid-template-columns:1fr}
@media(min-width:640px){.cat-grid{grid-template-columns:repeat(2,1fr)}}
@media(min-width:1024px){.cat-grid{grid-template-columns:repeat(4,1fr)}}
.cat-card{
  display:flex;flex-direction:column;gap:12px;height:100%;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:22px;box-shadow:var(--shadow-sm);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.cat-card:hover{transform:translateY(-2px);border-color:rgba(14,107,92,.35);box-shadow:var(--shadow-md)}
.cat-icon{
  width:44px;height:44px;border-radius:12px;display:grid;place-items:center;
  background:rgba(47,169,140,.13);color:var(--primary);font-size:17px;
}
.cat-card h3{font-size:17.5px;font-weight:700;color:var(--primary-dark);line-height:1.5}
.cat-card p{font-size:14px;line-height:1.75;color:var(--muted)}
.cat-card .more{margin-top:auto;font-size:14px;font-weight:600;color:var(--primary);display:inline-flex;align-items:center;gap:6px}
.cat-card:hover h3{color:var(--primary)}

/* ---------- CTA band ---------- */
.cta-band{position:relative;overflow:hidden;background:var(--primary-dark);color:#fff;padding:64px 0}
@media(min-width:768px){.cta-band{padding:84px 0}}
.cta-band::after{
  content:"";position:absolute;right:-100px;top:-110px;width:360px;height:360px;border-radius:50%;
  background:radial-gradient(circle,rgba(47,169,140,.32),rgba(47,169,140,0) 70%);
}
.cta-band .container{position:relative;z-index:2}
@media(min-width:1024px){
  .cta-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
}
.cta-band h2{
  font-size:clamp(24px,3.2vw,34px);line-height:1.35;font-weight:800;
  letter-spacing:-.4px;color:#fff;margin-bottom:14px;
}
.cta-band .cta-copy p{font-size:16.5px;line-height:1.9;color:rgba(255,255,255,.83);max-width:520px}
.cta-points{list-style:none;padding:0;display:grid;gap:10px;margin-top:24px}
.cta-points li{display:flex;gap:10px;font-size:15.5px;line-height:1.8;color:rgba(255,255,255,.9)}
.cta-points i{color:var(--cool);font-size:13px;margin-top:7px}
.cta-form{
  margin-top:34px;background:#fff;border-radius:18px;padding:26px;
  box-shadow:0 30px 60px -34px rgba(0,0,0,.75);display:grid;gap:16px;color:var(--text);
}
@media(min-width:1024px){.cta-form{margin-top:0}}
.form-row{display:grid;gap:16px;grid-template-columns:1fr}
@media(min-width:640px){.form-row{grid-template-columns:1fr 1fr}}
.field{display:grid;gap:8px}
.field label{font-size:13.5px;font-weight:600;color:#3A4442}
.field input,.field select,.field textarea{
  width:100%;padding:11px 14px;border:1px solid var(--line);border-radius:10px;
  background:#FCFBF8;font-size:15px;font-family:inherit;color:var(--text);
  transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.field textarea{min-height:96px;resize:vertical;line-height:1.75}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;background:#fff;border-color:var(--primary);
  box-shadow:0 0 0 3px rgba(14,107,92,.15);
}
.form-success{
  display:none;align-items:center;gap:10px;padding:12px 14px;border-radius:10px;
  background:rgba(47,169,140,.12);border:1px solid rgba(47,169,140,.4);
  color:#14614F;font-size:14.5px;line-height:1.7;
}
.form-success.show{display:flex}
.form-hint{font-size:13px;color:var(--muted);line-height:1.7}

/* ---------- Footer ---------- */
.site-footer{background:var(--primary-dark);color:#D9E3DF;padding:64px 0 26px}
.footer-grid{display:grid;gap:32px;grid-template-columns:1fr}
@media(min-width:768px){.footer-grid{grid-template-columns:repeat(2,1fr)}}
@media(min-width:1024px){.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:40px}}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:700;color:#fff;margin-bottom:14px}
.footer-col h4{font-size:15px;font-weight:700;color:#fff;margin-bottom:16px}
.footer-col ul{list-style:none;padding:0;display:flex;flex-direction:column;gap:10px}
.footer-col a{font-size:14.5px;color:#B9C9C3;transition:color .2s ease}
.footer-col a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px}
.footer-col p{font-size:14.5px;line-height:1.85;color:#B9C9C3;max-width:420px}
.footer-contact li{display:flex;gap:10px;align-items:flex-start;font-size:14.5px;color:#B9C9C3;line-height:1.8}
.footer-contact i{margin-top:6px;color:var(--cool);font-size:13px}
.footer-bottom{
  margin-top:40px;padding-top:22px;border-top:1px solid rgba(255,255,255,.14);
  display:flex;flex-wrap:wrap;gap:14px;justify-content:space-between;align-items:center;
  font-size:13.5px;color:#93A8A1;
}
.footer-links{display:flex;flex-wrap:wrap;gap:16px}
.footer-links a{color:#93A8A1;transition:color .2s ease}
.footer-links a:hover{color:#fff}

/* ---------- Reveal ---------- */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .5s ease,transform .5s ease}
.reveal.in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  html{scroll-behavior:auto}
}

/* roulang page: category3 */
:root{
    --brand:#0E6B5C;
    --brand-dark:#083F36;
    --accent:#F2681F;
    --cool:#2FA98C;
    --bg:#F6F4EF;
    --card:#FFFFFF;
    --line:#E2DED5;
    --text:#1B2320;
    --muted:#5B6663;
    --radius-card:16px;
    --radius-img:12px;
    --radius-btn:10px;
    --shadow-sm:0 1px 2px rgba(16,32,28,.06);
    --shadow-lg:0 12px 28px -14px rgba(16,32,28,.22);
    --header-h:72px;
  }

  html{scroll-behavior:smooth;}

  html body{
    margin:0;
    font-family:-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
    background:var(--bg);
    color:var(--text);
    font-size:16px;
    line-height:1.75;
    -webkit-font-smoothing:antialiased;
    overflow-x:hidden;
  }

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

  img{max-width:100%;display:block;}
  a{color:inherit;text-decoration:none;}
  button{font-family:inherit;cursor:pointer;}
  input,select,textarea{font-family:inherit;font-size:15px;}

  .container{
    width:100%;
    max-width:1200px;
    margin:0 auto;
    padding-left:20px;
    padding-right:20px;
  }
  @media (min-width:768px){
    .container{padding-left:24px;padding-right:24px;}
  }
  @media (min-width:1440px){
    .container{max-width:1240px;}
  }

  .num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum";}

  section{scroll-margin-top:calc(var(--header-h) + 58px);}

  /* ============ 顶部细条 ============ */
  .topbar{
    background:var(--brand-dark);
    color:#D9E3DF;
    height:36px;
    font-size:13px;
    display:flex;
    align-items:center;
  }
  .topbar .container{
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:16px;
  }
  .topbar-tip{
    display:flex;align-items:center;gap:8px;
    white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
  }
  .topbar-tip i{color:var(--cool);}
  .topbar-links{display:flex;align-items:center;gap:18px;flex-shrink:0;}
  .topbar-links a{color:#D9E3DF;transition:color .18s;}
  .topbar-links a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px;}
  @media (max-width:768px){
    .topbar{height:34px;font-size:12px;}
    .topbar-links{display:none;}
  }

  /* ============ 导航 ============ */
  .site-header{
    position:sticky;
    top:0;
    z-index:50;
    background:#FFFFFF;
    border-bottom:1px solid var(--line);
    transition:box-shadow .22s ease;
  }
  .site-header.scrolled{box-shadow:0 10px 30px -20px rgba(16,32,28,.35);}
  .nav-inner{
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:20px;
    height:var(--header-h);
  }
  .logo{display:flex;align-items:center;gap:10px;flex-shrink:0;}
  .logo-mark{
    width:38px;height:38px;border-radius:11px;
    background:linear-gradient(140deg,var(--brand),var(--brand-dark));
    color:#fff;display:grid;place-items:center;
    font-weight:700;font-size:18px;line-height:1;
    box-shadow:0 8px 18px -10px rgba(14,107,92,.7);
  }
  .logo-text{display:block;font-size:17px;font-weight:700;line-height:1.2;color:var(--text);}
  .logo-text span{color:var(--brand);}
  .logo-sub{
    display:block;font-size:11px;color:var(--muted);
    letter-spacing:.1em;line-height:1.4;
  }
  .nav-links{display:flex;align-items:center;gap:2px;}
  .nav-link{
    padding:9px 13px;
    border-radius:999px;
    font-size:14.5px;
    color:var(--muted);
    transition:background .18s,color .18s;
    white-space:nowrap;
  }
  .nav-link:hover{background:rgba(14,107,92,.08);color:var(--brand);}
  .nav-link.active{
    background:rgba(14,107,92,.1);
    color:var(--brand);
    font-weight:600;
  }
  .nav-cta{
    display:inline-flex;align-items:center;gap:7px;
    margin-left:10px;
    padding:10px 18px;
    border-radius:var(--radius-btn);
    background:var(--brand);
    color:#fff;
    font-size:14.5px;
    font-weight:600;
    transition:background .18s,transform .18s,box-shadow .18s;
    white-space:nowrap;
  }
  .nav-cta:hover{background:#0b5748;transform:translateY(-1px);box-shadow:var(--shadow-lg);}
  .nav-cta:active{transform:translateY(0);}
  .burger{
    display:none;
    width:42px;height:42px;
    border-radius:11px;
    border:1px solid var(--line);
    background:#fff;
    color:var(--brand);
    font-size:17px;
    place-items:center;
    transition:border-color .18s,color .18s;
  }
  .burger:hover{border-color:var(--brand);}
  @media (max-width:1080px){
    .nav-links{display:none;}
    .burger{display:grid;}
  }

  /* 移动抽屉 */
  .mobile-drawer{
    position:fixed;
    top:var(--header-h);
    left:0;right:0;bottom:0;
    background:#fff;
    z-index:45;
    padding:22px 20px calc(112px + env(safe-area-inset-bottom));
    overflow-y:auto;
    transform:translateY(-102%);
    transition:transform .3s ease;
    display:none;
  }
  .mobile-drawer.open{transform:translateY(0);}
  .mobile-drawer a.drawer-link{
    display:flex;align-items:center;justify-content:space-between;
    padding:16px 4px;
    font-size:19px;
    font-weight:600;
    color:var(--text);
    border-bottom:1px solid var(--line);
  }
  .mobile-drawer a.drawer-link i{color:var(--cool);font-size:14px;}
  .mobile-drawer a.drawer-link.active{color:var(--brand);}
  .drawer-cta{
    position:fixed;
    left:0;right:0;bottom:0;
    padding:14px 20px calc(14px + env(safe-area-inset-bottom));
    background:#fff;
    border-top:1px solid var(--line);
  }
  @media (max-width:1080px){
    .mobile-drawer{display:block;}
  }

  /* ============ 按钮 ============ */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    padding:13px 24px;
    border-radius:var(--radius-btn);
    font-size:15px;
    font-weight:600;
    line-height:1.2;
    border:1px solid transparent;
    transition:background .18s,color .18s,transform .18s,box-shadow .18s,border-color .18s;
    white-space:nowrap;
  }
  .btn-primary{background:var(--brand);color:#fff;box-shadow:0 10px 22px -14px rgba(14,107,92,.9);}
  .btn-primary:hover{background:#0b5748;transform:translateY(-1px);box-shadow:0 14px 26px -14px rgba(14,107,92,.95);}
  .btn-primary:active{transform:translateY(0);}
  .btn-accent{background:var(--accent);color:#fff;}
  .btn-accent:hover{background:#d95a16;transform:translateY(-1px);}
  .btn-ghost{background:#fff;color:var(--text);border-color:var(--line);}
  .btn-ghost:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-1px);}
  .btn-light{background:rgba(255,255,255,.12);color:#fff;border-color:rgba(255,255,255,.45);}
  .btn-light:hover{background:rgba(255,255,255,.22);transform:translateY(-1px);}
  .btn-white{background:#fff;color:var(--brand-dark);}
  .btn-white:hover{background:#f1efe9;transform:translateY(-1px);}
  .btn:focus-visible,a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
    outline:2px solid var(--brand);
    outline-offset:2px;
  }

  /* ============ 标签 / 徽章 ============ */
  .badge{
    display:inline-flex;align-items:center;gap:6px;
    padding:5px 12px;
    border-radius:999px;
    font-size:13px;
    background:rgba(47,169,140,.12);
    color:#1c6d5b;
    border:1px solid rgba(47,169,140,.28);
  }
  .badge-accent{background:rgba(242,104,31,.12);color:#b64c14;border-color:rgba(242,104,31,.3);}
  .eyebrow{
    display:inline-flex;align-items:center;gap:8px;
    font-size:13px;font-weight:600;letter-spacing:.08em;
    color:var(--accent);
    text-transform:uppercase;
  }
  .eyebrow::before{
    content:"";width:22px;height:2px;background:var(--accent);border-radius:2px;
  }

  /* ============ 分类页 Hero ============ */
  .cat-hero{
    position:relative;
    color:#fff;
    padding:82px 0 70px;
    background:#083F36 url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
    overflow:hidden;
  }
  .cat-hero::before{
    content:"";
    position:absolute;inset:0;
    background:linear-gradient(96deg,rgba(8,63,54,.95) 0%,rgba(8,63,54,.82) 52%,rgba(8,63,54,.66) 100%);
  }
  .cat-hero .container{position:relative;z-index:1;}
  .cat-hero h1{
    font-size:clamp(30px,5vw,48px);
    line-height:1.25;
    font-weight:800;
    letter-spacing:-.5px;
    margin:14px 0 0;
  }
  .cat-hero h1 em{font-style:normal;color:#7FE0C4;}
  .cat-hero .lead{
    margin-top:16px;
    font-size:16.5px;
    line-height:1.85;
    color:#D5E5E0;
    max-width:660px;
  }
  .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px;}
  .hero-facts{
    display:grid;
    grid-template-columns:repeat(3,minmax(0,1fr));
    gap:14px;
    margin-top:38px;
  }
  .fact{
    background:rgba(255,255,255,.09);
    border:1px solid rgba(255,255,255,.18);
    border-radius:14px;
    padding:16px 18px;
    backdrop-filter:blur(4px);
  }
  .fact i{color:#7FE0C4;font-size:15px;}
  .fact strong{display:block;margin-top:8px;font-size:15.5px;color:#fff;font-weight:600;}
  .fact span{display:block;margin-top:4px;font-size:13.5px;color:#B9D2CB;line-height:1.6;}
  @media (max-width:768px){
    .cat-hero{padding:56px 0 48px;}
    .hero-facts{grid-template-columns:1fr;gap:10px;margin-top:26px;}
    .hero-actions{gap:10px;}
    .hero-actions .btn{flex:1 1 100%;}
  }

  /* 面包屑 */
  .crumbs{
    font-size:13px;
    color:#9FC0B8;
    display:flex;align-items:center;gap:8px;flex-wrap:wrap;
  }
  .crumbs a{color:#CDE3DC;transition:color .18s;}
  .crumbs a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px;}
  .crumbs span.sep{color:#6E9690;}

  /* ============ 板块通用 ============ */
  .section{padding:88px 0;}
  .section-tight{padding:64px 0;}
  @media (max-width:768px){
    .section{padding:54px 0;}
    .section-tight{padding:44px 0;}
  }
  .section-head{max-width:720px;}
  .section-head h2{
    font-size:clamp(24px,3.2vw,34px);
    line-height:1.35;
    font-weight:800;
    letter-spacing:-.4px;
    margin:12px 0 0;
    color:var(--text);
  }
  .section-head p{margin-top:14px;color:var(--muted);font-size:16px;line-height:1.85;}
  .divider{height:1px;background:var(--line);border:0;margin:0;}

  /* ============ 时间轴行条 ============ */
  .timeline{margin-top:44px;position:relative;}
  .tl-item{
    position:relative;
    display:grid;
    grid-template-columns:56px 1fr;
    gap:20px;
    padding-bottom:30px;
  }
  .tl-item:last-child{padding-bottom:0;}
  .tl-item:not(:last-child)::before{
    content:"";
    position:absolute;
    left:27px;
    top:64px;
    bottom:2px;
    width:2px;
    background:linear-gradient(180deg,var(--line),rgba(226,222,213,.35));
  }
  .tl-num{
    width:56px;height:56px;
    border-radius:16px;
    display:grid;place-items:center;
    font-size:19px;
    font-weight:800;
    color:var(--brand);
    background:rgba(14,107,92,.07);
    border:1px dashed rgba(14,107,92,.35);
    font-variant-numeric:tabular-nums;
  }
  .tl-body{
    background:var(--card);
    border:1px solid var(--line);
    border-radius:var(--radius-card);
    padding:20px 22px;
    box-shadow:var(--shadow-sm);
    transition:transform .2s,border-color .2s,box-shadow .2s;
  }
  .tl-body:hover{
    transform:translateY(-2px);
    border-color:rgba(14,107,92,.3);
    box-shadow:var(--shadow-lg);
  }
  .tl-body h3{
    font-size:19px;
    font-weight:700;
    margin:0;
    line-height:1.5;
    transition:color .2s;
  }
  .tl-body:hover h3{color:var(--brand);}
  .tl-body p{margin:8px 0 0;color:var(--muted);font-size:15px;line-height:1.8;}
  .tl-tag{
    display:inline-block;
    margin-top:14px;
    font-size:12.5px;
    color:#1c6d5b;
    background:rgba(47,169,140,.12);
    border:1px solid rgba(47,169,140,.26);
    border-radius:999px;
    padding:3px 11px;
  }
  @media (max-width:640px){
    .tl-item{grid-template-columns:44px 1fr;gap:14px;}
    .tl-num{width:44px;height:44px;border-radius:13px;font-size:16px;}
    .tl-item:not(:last-child)::before{left:21px;top:52px;}
    .tl-body{padding:16px 16px;}
    .tl-body h3{font-size:17px;}
  }

  /* ============ 图文交替 ============ */
  .figure-row{
    display:grid;
    grid-template-columns:1fr 1fr;
    gap:48px;
    align-items:center;
  }
  .figure-row + .figure-row{margin-top:64px;}
  .figure-row.reverse .figure-media{order:2;}
  .figure-media img{
    width:100%;
    height:320px;
    object-fit:cover;
    border-radius:var(--radius-img);
    background:#EDE9E1;
    border:1px solid var(--line);
    box-shadow:var(--shadow-lg);
  }
  .figure-body h3{
    font-size:clamp(20px,2.4vw,25px);
    font-weight:700;
    line-height:1.45;
    margin:0;
  }
  .figure-body p{margin-top:14px;color:var(--muted);font-size:16px;line-height:1.9;}
  @media (max-width:900px){
    .figure-row{grid-template-columns:1fr;gap:24px;}
    .figure-row.reverse .figure-media{order:0;}
    .figure-media img{height:230px;}
    .figure-row + .figure-row{margin-top:44px;}
  }

  /* ============ 要点清单行条 ============ */
  .checklist{
    margin-top:40px;
    display:grid;
    gap:14px;
  }
  .check-row{
    display:flex;
    align-items:flex-start;
    gap:18px;
    background:var(--card);
    border:1px solid var(--line);
    border-left:3px solid var(--brand);
    border-radius:14px;
    padding:18px 22px;
    box-shadow:var(--shadow-sm);
    transition:transform .2s,box-shadow .2s,border-color .2s;
  }
  .check-row:hover{
    transform:translateY(-2px);
    box-shadow:var(--shadow-lg);
    border-color:rgba(14,107,92,.3);
    border-left-color:var(--accent);
  }
  .check-row .idx{
    font-size:14px;
    font-weight:800;
    color:var(--accent);
    font-variant-numeric:tabular-nums;
    min-width:30px;
    padding-top:2px;
  }
  .check-row strong{display:block;font-size:16.5px;font-weight:700;line-height:1.6;}
  .check-row span{display:block;margin-top:5px;color:var(--muted);font-size:14.5px;line-height:1.75;}
  @media (max-width:640px){
    .check-row{padding:15px 16px;gap:12px;}
  }

  /* ============ FAQ ============ */
  .faq-wrap{margin-top:38px;border-top:1px solid var(--line);}
  .faq-item{border-bottom:1px solid var(--line);}
  .faq-q{
    width:100%;
    display:flex;align-items:center;justify-content:space-between;gap:18px;
    padding:20px 2px;
    background:none;border:0;
    text-align:left;
    font-size:17px;
    font-weight:600;
    color:var(--text);
    line-height:1.6;
    transition:color .18s;
  }
  .faq-q:hover{color:var(--brand);}
  .faq-q i{
    color:var(--brand);
    font-size:14px;
    flex-shrink:0;
    transition:transform .2s ease;
  }
  .faq-item.open .faq-q i{transform:rotate(180deg);}
  .faq-a{
    max-height:0;
    overflow:hidden;
    transition:max-height .25s ease;
  }
  .faq-a-inner{
    border-left:3px solid var(--brand);
    padding:2px 0 22px 16px;
    color:var(--muted);
    font-size:15.5px;
    line-height:1.9;
  }

  /* ============ 相关分类卡片 ============ */
  .rel-grid{
    display:grid;
    grid-template-columns:repeat(4,minmax(0,1fr));
    gap:20px;
    margin-top:40px;
  }
  .rel-card{
    display:block;
    background:var(--card);
    border:1px solid var(--line);
    border-radius:var(--radius-card);
    padding:24px 22px;
    box-shadow:var(--shadow-sm);
    transition:transform .2s,border-color .2s,box-shadow .2s;
  }
  .rel-card:hover{
    transform:translateY(-2px);
    border-color:rgba(14,107,92,.3);
    box-shadow:var(--shadow-lg);
  }
  .rel-icon{
    width:44px;height:44px;
    border-radius:13px;
    display:grid;place-items:center;
    background:rgba(14,107,92,.08);
    color:var(--brand);
    font-size:17px;
    border:1px solid rgba(14,107,92,.16);
    transition:background .2s,color .2s;
  }
  .rel-card:hover .rel-icon{background:var(--brand);color:#fff;}
  .rel-card h3{margin:16px 0 0;font-size:17.5px;font-weight:700;line-height:1.5;transition:color .2s;}
  .rel-card:hover h3{color:var(--brand);}
  .rel-card p{margin:8px 0 0;color:var(--muted);font-size:14px;line-height:1.75;}
  .rel-more{
    margin-top:16px;
    font-size:13.5px;
    color:var(--brand);
    font-weight:600;
    display:inline-flex;align-items:center;gap:6px;
  }
  @media (max-width:1024px){
    .rel-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  }
  @media (max-width:560px){
    .rel-grid{grid-template-columns:1fr;}
  }

  /* ============ CTA 带 ============ */
  .cta-band{
    background:linear-gradient(115deg,var(--brand-dark),var(--brand) 78%);
    color:#fff;
    position:relative;
    overflow:hidden;
  }
  .cta-band::after{
    content:"";
    position:absolute;
    right:-80px;top:-60px;
    width:280px;height:280px;
    border-radius:50%;
    background:rgba(255,255,255,.06);
  }
  .cta-band .container{position:relative;z-index:1;}
  .cta-inner{
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:32px;
    flex-wrap:wrap;
  }
  .cta-inner h2{
    font-size:clamp(22px,2.9vw,31px);
    font-weight:800;
    line-height:1.4;
    margin:0;
    letter-spacing:-.3px;
  }
  .cta-inner p{margin:12px 0 0;color:#C9E0DA;font-size:15.5px;line-height:1.8;max-width:560px;}
  .cta-actions{display:flex;gap:12px;flex-wrap:wrap;}
  @media (max-width:768px){
    .cta-inner{flex-direction:column;align-items:flex-start;}
    .cta-actions{width:100%;}
    .cta-actions .btn{flex:1 1 100%;}
  }

  /* ============ 表单 ============ */
  .form-panel{
    background:var(--card);
    border:1px solid var(--line);
    border-radius:var(--radius-card);
    padding:28px;
    box-shadow:var(--shadow-sm);
  }
  .form-grid{
    display:grid;
    grid-template-columns:1fr 1fr;
    gap:18px;
  }
  .field{display:flex;flex-direction:column;gap:7px;}
  .field.full{grid-column:1 / -1;}
  .field label{font-size:14px;color:var(--muted);font-weight:600;}
  .field input,
  .field select,
  .field textarea{
    width:100%;
    padding:11px 13px;
    border-radius:var(--radius-btn);
    border:1px solid var(--line);
    background:#FCFBF8;
    color:var(--text);
    transition:border-color .18s,box-shadow .18s,background .18s;
  }
  .field textarea{min-height:110px;resize:vertical;}
  .field input:focus,
  .field select:focus,
  .field textarea:focus{
    outline:none;
    background:#fff;
    border-color:var(--brand);
    box-shadow:0 0 0 3px rgba(14,107,92,.15);
  }
  .form-success{
    display:none;
    margin-top:18px;
    padding:13px 16px;
    border-radius:var(--radius-btn);
    background:rgba(47,169,140,.12);
    border:1px solid rgba(47,169,140,.3);
    color:#1c6d5b;
    font-size:14.5px;
  }
  .form-success.show{display:block;}
  @media (max-width:768px){
    .form-grid{grid-template-columns:1fr;}
    .form-panel{padding:20px;}
  }

  /* ============ 页脚 ============ */
  .site-footer{
    background:var(--brand-dark);
    color:#D9E3DF;
    padding:64px 0 0;
    margin-top:0;
  }
  .footer-grid{
    display:grid;
    grid-template-columns:1.4fr 1fr 1fr 1.3fr;
    gap:36px;
  }
  .footer-brand{
    display:flex;align-items:center;gap:10px;
    color:#fff;font-size:17px;font-weight:700;
  }
  .footer-brand .logo-mark{width:34px;height:34px;border-radius:10px;font-size:16px;}
  .footer-col p{
    margin:16px 0 0;
    font-size:14px;
    line-height:1.85;
    color:#A8C4BD;
    max-width:320px;
  }
  .footer-col h4{
    font-size:15px;
    color:#fff;
    margin:0 0 16px;
    font-weight:700;
    letter-spacing:.02em;
  }
  .footer-col ul{list-style:none;margin:0;padding:0;display:grid;gap:11px;}
  .footer-col ul a{
    font-size:14px;
    color:#B7CFC8;
    transition:color .18s,padding-left .18s;
  }
  .footer-col ul a:hover{color:#fff;padding-left:3px;}
  .footer-contact li{
    display:flex;align-items:flex-start;gap:10px;
    font-size:14px;color:#B7CFC8;line-height:1.7;
  }
  .footer-contact i{color:var(--cool);margin-top:4px;font-size:13px;}
  .footer-bottom{
    margin-top:48px;
    border-top:1px solid rgba(255,255,255,.12);
    padding:22px 0;
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:16px;
    flex-wrap:wrap;
    font-size:13px;
    color:#96B3AC;
  }
  .footer-links{display:flex;flex-wrap:wrap;gap:16px;}
  .footer-links a{color:#96B3AC;transition:color .18s;}
  .footer-links a:hover{color:#fff;}
  @media (max-width:1024px){
    .footer-grid{grid-template-columns:1fr 1fr;gap:30px;}
  }
  @media (max-width:640px){
    .site-footer{padding-top:46px;}
    .footer-grid{grid-template-columns:1fr;}
    .footer-bottom{flex-direction:column;align-items:flex-start;}
  }

  /* 返回顶部 */
  .to-top{
    position:fixed;
    right:20px;
    bottom:24px;
    width:46px;height:46px;
    border-radius:14px;
    background:#fff;
    border:1px solid var(--line);
    color:var(--brand);
    display:grid;place-items:center;
    box-shadow:var(--shadow-lg);
    opacity:0;
    pointer-events:none;
    transform:translateY(10px);
    transition:opacity .25s,transform .25s,background .2s,color .2s;
    z-index:40;
  }
  .to-top.show{opacity:1;pointer-events:auto;transform:translateY(0);}
  .to-top:hover{background:var(--brand);color:#fff;border-color:var(--brand);}
  @media (max-width:640px){
    .to-top{right:16px;bottom:calc(16px + env(safe-area-inset-bottom));}
  }

/* roulang page: category4 */
:root{
    --c-primary:#0E6B5C;
    --c-primary-dark:#083F36;
    --c-accent:#F2681F;
    --c-cool:#2FA98C;
    --c-bg:#F6F4EF;
    --c-card:#FFFFFF;
    --c-line:#E2DED5;
    --c-text:#1B2320;
    --c-muted:#5B6663;
    --r-card:16px;
    --r-img:12px;
    --r-input:10px;
    --r-btn:10px;
    --r-pill:999px;
    --sh-1:0 1px 2px rgba(16,32,28,.06);
    --sh-2:0 12px 28px -14px rgba(16,32,28,.22);
    --container:1200px;
  }
  *,*::before,*::after{box-sizing:border-box}
  html{scroll-behavior:smooth}
  body{
    margin:0;
    background:var(--c-bg);
    color:var(--c-text);
    font-family:-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
    font-size:16px;
    line-height:1.9;
    -webkit-font-smoothing:antialiased;
  }
  h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.25;color:var(--c-text)}
  p{margin:0}
  ul,ol{margin:0;padding:0;list-style:none}
  a{color:inherit;text-decoration:none}
  img{display:block;max-width:100%;height:auto}
  button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
  input,select,textarea{font:inherit;color:inherit}
  :focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:6px}
  .num{font-variant-numeric:tabular-nums}

  .container{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px}
  @media (min-width:768px){ .container{padding:0 24px} }
  @media (min-width:1440px){ .container{max-width:1240px} }

  /* ---------- header ---------- */
  .site-header{
    position:sticky;top:0;z-index:70;
    background:#fff;border-bottom:1px solid var(--c-line);
    transition:box-shadow .22s ease;
  }
  .site-header.is-scrolled{box-shadow:0 10px 26px -20px rgba(16,32,28,.5)}
  .nav-inner{display:flex;align-items:center;justify-content:space-between;gap:18px;height:72px}
  .logo{display:flex;align-items:center;gap:10px;flex:0 0 auto}
  .logo-mark{
    width:38px;height:38px;border-radius:12px;background:var(--c-primary);color:#fff;
    display:grid;place-items:center;font-weight:700;font-size:18px;box-shadow:var(--sh-1);
  }
  .logo-text{display:block;font-size:18px;font-weight:700;line-height:1.2;color:var(--c-primary-dark);letter-spacing:.5px}
  .logo-text span{color:var(--c-primary)}
  .logo-sub{display:block;font-size:11px;line-height:1.5;color:var(--c-muted);letter-spacing:2px}
  .nav-links{display:flex;align-items:center;gap:4px}
  .nav-link{
    padding:8px 13px;border-radius:var(--r-pill);font-size:14.5px;color:var(--c-muted);
    transition:background .2s ease,color .2s ease;
  }
  .nav-link:hover{color:var(--c-primary);background:rgba(14,107,92,.07)}
  .nav-link.active{background:rgba(14,107,92,.1);color:var(--c-primary);font-weight:600}
  .nav-cta{
    display:inline-flex;align-items:center;gap:7px;
    margin-left:10px;padding:10px 18px;border-radius:var(--r-btn);
    background:var(--c-primary);color:#fff;font-size:14.5px;font-weight:600;line-height:1.2;
    transition:background .2s ease,transform .2s ease;
  }
  .nav-cta:hover{background:#0b564a;transform:translateY(-1px)}
  .nav-cta:active{transform:translateY(0)}
  .burger{
    display:none;width:42px;height:42px;border-radius:12px;border:1px solid var(--c-line);
    color:var(--c-primary);place-items:center;background:#fff;font-size:17px;
  }
  .burger:hover{background:rgba(14,107,92,.06)}

  .mobile-drawer{
    position:fixed;inset:0;z-index:90;background:#fff;
    display:none;flex-direction:column;padding:20px 20px calc(20px + env(safe-area-inset-bottom));
    transform:translateX(100%);transition:transform .26s ease;overflow-y:auto;
  }
  .mobile-drawer.open{transform:translateX(0)}
  .drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
  .drawer-close{width:42px;height:42px;border-radius:12px;border:1px solid var(--c-line);color:var(--c-primary);display:grid;place-items:center;background:#fff}
  .drawer-link{display:block;padding:15px 4px;font-size:18px;font-weight:600;border-bottom:1px solid var(--c-line)}
  .drawer-link.active{color:var(--c-primary)}
  .drawer-cta{margin-top:auto;padding-top:26px}
  .drawer-cta .btn{width:100%}

  @media (max-width:1024px){
    .nav-links{display:none}
    .burger{display:grid}
    .mobile-drawer{display:flex}
  }

  /* ---------- buttons ---------- */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    padding:13px 24px;border-radius:var(--r-btn);border:1px solid transparent;
    font-size:15.5px;font-weight:600;line-height:1.2;cursor:pointer;
    transition:background .2s ease,transform .2s ease,border-color .2s ease,box-shadow .2s ease;
  }
  .btn-primary{background:var(--c-accent);color:#fff;box-shadow:0 10px 22px -14px rgba(242,104,31,.9)}
  .btn-primary:hover{background:#d95a15;transform:translateY(-1px)}
  .btn-primary:active{transform:translateY(0)}
  .btn-solid{background:var(--c-primary);color:#fff}
  .btn-solid:hover{background:#0b564a;transform:translateY(-1px)}
  .btn-solid:active{transform:translateY(0)}
  .btn-ghost{border-color:rgba(255,255,255,.55);color:#fff}
  .btn-ghost:hover{background:rgba(255,255,255,.14)}
  .btn-outline{border-color:var(--c-line);background:#fff;color:var(--c-primary)}
  .btn-outline:hover{border-color:var(--c-primary);background:rgba(14,107,92,.06)}

  /* ---------- hero ---------- */
  .cat-hero{position:relative;overflow:hidden;background:var(--c-primary-dark);color:#fff;padding:64px 0 68px}
  .cat-hero::before{
    content:"";position:absolute;inset:0;
    background-image:url('/assets/images/backpic/back-2.webp');
    background-size:cover;background-position:center;opacity:.3;
  }
  .cat-hero::after{
    content:"";position:absolute;inset:0;
    background:linear-gradient(112deg,rgba(8,63,54,.95) 0%,rgba(8,63,54,.74) 58%,rgba(8,63,54,.6) 100%);
  }
  .cat-hero .container{position:relative;z-index:2}
  .crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.72);margin-bottom:22px}
  .crumbs a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px}
  .crumbs span.sep{opacity:.6}
  .hero-eyebrow{
    display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:var(--r-pill);
    background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.24);
    font-size:13px;letter-spacing:1px;color:#EAF4F1;margin-bottom:18px;
  }
  .cat-hero h1{color:#fff;font-size:clamp(30px,5vw,48px);max-width:900px}
  .cat-lead{margin-top:18px;max-width:780px;font-size:16.5px;color:rgba(255,255,255,.86)}
  .hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
  .keyfacts{display:flex;flex-wrap:wrap;gap:12px;margin-top:34px}
  .keyfact{
    display:inline-flex;align-items:center;gap:9px;
    padding:9px 16px;border-radius:var(--r-pill);
    background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.22);
    font-size:14px;color:#EAF4F1;
  }
  .keyfact i{color:#7FD8C4}

  /* ---------- sections ---------- */
  .section{padding:96px 0}
  .section--tight{padding-top:72px}
  @media (max-width:768px){ .section{padding:56px 0} .section--tight{padding-top:40px} }
  .section-head{max-width:780px;margin-bottom:42px}
  .eyebrow{
    display:inline-block;padding:5px 13px;border-radius:var(--r-pill);
    background:rgba(14,107,92,.1);color:var(--c-primary);
    font-size:13px;font-weight:600;letter-spacing:1px;margin-bottom:14px;
  }
  .section-head h2{font-size:clamp(24px,3.2vw,34px)}
  .section-head p{margin-top:14px;color:var(--c-muted);font-size:16px}
  [id]{scroll-margin-top:96px}

  /* ---------- split ---------- */
  .split{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
  .split + .split{margin-top:72px}
  .split-media{order:2}
  .split-media img{
    width:100%;border-radius:var(--r-img);box-shadow:var(--sh-2);
    background:#E8E4DC;object-fit:cover;aspect-ratio:16/10;
  }
  .split-body h3{font-size:clamp(21px,2.4vw,26px);margin-bottom:16px}
  .split-body p{color:var(--c-muted);font-size:16.5px}
  .split-body p + p{margin-top:14px}
  .split-body .btn{margin-top:24px}
  .split--flip .split-media{order:0}
  @media (max-width:900px){
    .split{grid-template-columns:1fr;gap:26px}
    .split-media{order:0}
    .split + .split{margin-top:52px}
  }

  /* ---------- checklist + sidebar ---------- */
  .check-layout{display:grid;grid-template-columns:minmax(0,1fr) 340px;gap:32px;align-items:start}
  .step-list{display:grid;gap:14px}
  .step-item{
    display:flex;gap:18px;padding:20px 22px;background:var(--c-card);
    border:1px solid var(--c-line);border-radius:var(--r-card);box-shadow:var(--sh-1);
    transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
  }
  .step-item:hover{transform:translateY(-2px);border-color:rgba(14,107,92,.3);box-shadow:var(--sh-2)}
  .step-num{
    flex:0 0 auto;width:44px;height:44px;border-radius:12px;
    border:1px solid rgba(14,107,92,.35);color:var(--c-primary);
    display:grid;place-items:center;font-weight:700;font-variant-numeric:tabular-nums;
  }
  .step-item h3{font-size:18px;margin-bottom:6px}
  .step-item p{color:var(--c-muted);font-size:15px;line-height:1.8}
  .step-tag{
    display:inline-block;margin-left:8px;padding:2px 10px;border-radius:var(--r-pill);
    background:rgba(47,169,140,.14);color:#1F7A66;font-size:12px;font-weight:600;vertical-align:middle;
  }
  .side-stack{position:sticky;top:96px;display:grid;gap:20px}
  .side-card{
    background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--r-card);
    padding:22px;box-shadow:var(--sh-1);
  }
  .side-card h3{font-size:17px;display:flex;align-items:center;gap:9px;margin-bottom:14px}
  .side-card h3 i{color:var(--c-primary)}
  .side-list li{position:relative;padding-left:16px;color:var(--c-muted);font-size:14.5px;line-height:1.9;margin-bottom:8px}
  .side-list li::before{
    content:"";position:absolute;left:0;top:12px;width:6px;height:6px;border-radius:50%;background:var(--c-cool);
  }
  .side-links li + li{border-top:1px dashed var(--c-line)}
  .side-links a{display:flex;justify-content:space-between;align-items:center;gap:10px;padding:11px 0;font-size:14.5px;color:var(--c-text)}
  .side-links a:hover{color:var(--c-primary)}
  .side-links i{color:var(--c-accent);font-size:12px}
  @media (max-width:1024px){
    .check-layout{grid-template-columns:1fr}
    .side-stack{position:static}
  }

  /* ---------- faq ---------- */
  .faq-list{max-width:900px}
  .faq-item{
    background:var(--c-card);border:1px solid var(--c-line);border-radius:14px;
    overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease;
  }
  .faq-item + .faq-item{margin-top:12px}
  .faq-item.open{border-color:rgba(14,107,92,.38);box-shadow:var(--sh-2)}
  .faq-q{
    width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
    padding:18px 22px;font-size:17px;font-weight:600;text-align:left;color:var(--c-text);
  }
  .faq-q:hover{color:var(--c-primary)}
  .faq-q i{color:var(--c-primary);transition:transform .2s ease;flex:0 0 auto}
  .faq-item.open .faq-q i{transform:rotate(180deg)}
  .faq-a{max-height:0;overflow:hidden;transition:max-height .24s ease}
  .faq-a-inner{
    padding:0 22px 20px 22px;color:var(--c-muted);font-size:15.5px;line-height:1.9;
  }
  .faq-item.open .faq-a-inner{border-left:3px solid var(--c-primary);margin-left:22px;padding-left:19px}

  /* ---------- link cards ---------- */
  .link-cards{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px}
  .link-card{
    display:block;padding:24px;background:var(--c-card);border:1px solid var(--c-line);
    border-radius:var(--r-card);box-shadow:var(--sh-1);
    transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
  }
  .link-card:hover{transform:translateY(-2px);border-color:rgba(14,107,92,.3);box-shadow:var(--sh-2)}
  .link-icon{
    width:44px;height:44px;border-radius:12px;display:grid;place-items:center;
    background:rgba(14,107,92,.1);color:var(--c-primary);font-size:17px;margin-bottom:16px;
  }
  .link-card h3{font-size:17.5px;margin-bottom:8px}
  .link-card:hover h3{color:var(--c-primary)}
  .link-card p{color:var(--c-muted);font-size:14.5px;line-height:1.7}
  .link-more{display:inline-flex;align-items:center;gap:6px;margin-top:14px;font-size:14px;font-weight:600;color:var(--c-primary)}
  @media (max-width:1024px){ .link-cards{grid-template-columns:repeat(2,minmax(0,1fr))} }
  @media (max-width:560px){ .link-cards{grid-template-columns:1fr} }

  /* ---------- cta + form ---------- */
  .cta-band{
    background:var(--c-primary);color:#fff;border-radius:24px;padding:48px;
    display:grid;grid-template-columns:1.25fr .75fr;gap:32px;align-items:center;
    box-shadow:0 24px 48px -32px rgba(8,63,54,.9);
  }
  .cta-band h2{color:#fff;font-size:clamp(23px,3vw,32px)}
  .cta-band p{margin-top:14px;color:rgba(255,255,255,.85);font-size:16px;max-width:600px}
  .cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:flex-end}
  .cta-actions .btn{width:100%}
  @media (max-width:900px){
    .cta-band{grid-template-columns:1fr;padding:32px 24px;border-radius:20px}
    .cta-actions{justify-content:flex-start}
  }

  .contact-form{
    background:var(--c-card);border:1px solid var(--c-line);border-radius:20px;
    padding:28px;box-shadow:var(--sh-1);max-width:960px;margin:0 auto;
  }
  .form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
  .field{display:flex;flex-direction:column}
  .field--full{grid-column:1 / -1}
  .field label{font-size:14px;color:var(--c-muted);margin-bottom:8px}
  .field input,.field select,.field textarea{
    width:100%;padding:12px 14px;border:1px solid var(--c-line);border-radius:var(--r-input);
    background:#FBFAF7;transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
  }
  .field textarea{min-height:120px;resize:vertical;line-height:1.8}
  .field input:focus,.field select:focus,.field textarea:focus{
    outline:none;border-color:var(--c-primary);background:#fff;
    box-shadow:0 0 0 3px rgba(14,107,92,.15);
  }
  .form-actions{grid-column:1 / -1;display:flex;flex-wrap:wrap;align-items:center;gap:16px;margin-top:4px}
  .form-note{font-size:13px;color:var(--c-muted)}
  .form-success{
    display:none;margin-top:18px;padding:14px 18px;border-radius:var(--r-input);
    background:rgba(47,169,140,.12);border:1px solid rgba(47,169,140,.4);
    color:#1F7A66;font-size:14.5px;
  }
  .form-success.show{display:block}
  @media (max-width:768px){ .form-grid{grid-template-columns:1fr} .contact-form{padding:22px} }

  /* ---------- footer ---------- */
  .site-footer{background:var(--c-primary-dark);color:#D9E3DF;padding:64px 0 28px;margin-top:96px}
  .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:32px}
  .footer-brand{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:700;color:#fff;margin-bottom:16px}
  .footer-brand .logo-mark{background:rgba(255,255,255,.14);color:#fff;box-shadow:none}
  .footer-col p{color:rgba(217,227,223,.75);font-size:14.5px;line-height:1.9;max-width:330px}
  .footer-col h4{color:#fff;font-size:15px;margin-bottom:16px;letter-spacing:.5px}
  .footer-col ul li a{display:inline-block;color:rgba(217,227,223,.8);font-size:14.5px;line-height:2.1;transition:color .2s ease}
  .footer-col ul li a:hover{color:#fff}
  .footer-contact li{display:flex;gap:10px;color:rgba(217,227,223,.8);font-size:14px;line-height:1.8;margin-bottom:12px}
  .footer-contact i{color:#7FD8C4;margin-top:5px}
  .footer-bottom{
    margin-top:44px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);
    display:flex;flex-wrap:wrap;gap:16px;justify-content:space-between;align-items:center;
    font-size:13px;color:rgba(217,227,223,.65);
  }
  .footer-links{display:flex;flex-wrap:wrap;gap:16px}
  .footer-links a:hover{color:#fff}
  @media (max-width:1024px){
    .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
    .site-footer{margin-top:72px}
  }
  @media (max-width:560px){
    .footer-grid{grid-template-columns:1fr;gap:26px}
    .site-footer{padding:48px 0 24px}
  }

  /* ---------- to top ---------- */
  .to-top{
    position:fixed;right:20px;bottom:calc(24px + env(safe-area-inset-bottom));
    width:46px;height:46px;border-radius:14px;background:#fff;border:1px solid var(--c-line);
    color:var(--c-primary);display:grid;place-items:center;font-size:15px;
    box-shadow:var(--sh-2);opacity:0;pointer-events:none;transition:opacity .22s ease,transform .22s ease;
    z-index:60;
  }
  .to-top.show{opacity:1;pointer-events:auto}
  .to-top:hover{transform:translateY(-2px)}