/* roulang page: index */
:root{
  --brand-900:#082A2B;--brand-700:#0E4A46;--brand-500:#12726B;--brand-300:#4FA79B;--brand-050:#E6F1EF;
  --grad-brand:linear-gradient(115deg,#082A2B 0%,#0E4A46 45%,#12726B 100%);
  --grad-accent:linear-gradient(100deg,#C98A32,#E0A24A 60%,#F0C176);
  --bg:#F6F4F0;--surface:#FFFFFF;--surface-2:#FBF9F6;--line:#E3DED6;--line-strong:#CFC7BB;
  --text:#10201F;--text-2:#3C4A48;--muted:#6B7774;
  --ok:#2F7D63;--accent:#E0A24A;--accent-soft:#FBF1E2;--accent-ink:#8A5A18;--danger:#C4553B;
  --r-xl:28px;--r-lg:20px;--r-md:14px;--r-sm:10px;--r-pill:999px;
  --sh-1:0 1px 2px rgba(8,42,43,.04),0 12px 32px -14px rgba(8,42,43,.18);
  --sh-2:0 24px 56px -24px rgba(8,42,43,.28);
  --fs-title:'Noto Serif SC','Source Han Serif SC','Songti SC','SimSun',serif;
  --fs-body:-apple-system,'PingFang SC','Hiragino Sans GB','Microsoft YaHei','Noto Sans SC',sans-serif;
  --ease:cubic-bezier(.2,.7,.2,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--text);font-family:var(--fs-body);font-size:16px;line-height:1.85;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block;height:auto}
a{color:var(--brand-700);text-decoration:none;transition:color .2s var(--ease)}
a:hover{color:var(--brand-500)}
h1,h2,h3,h4{font-family:var(--fs-title);color:var(--text);margin:0;letter-spacing:.2px}
h1{font-size:clamp(30px,4vw,52px);line-height:1.2;font-weight:700}
h2{font-size:clamp(24px,2.6vw,36px);line-height:1.3;font-weight:700}
h3{font-size:20px;line-height:1.45;font-weight:600}
p{margin:0 0 20px}
p:last-child{margin-bottom:0}
ul{margin:0;padding:0;list-style:none}
button,input,textarea,select{font:inherit;color:inherit}
:focus-visible{outline:3px solid rgba(224,162,74,.5);outline-offset:2px;border-radius:6px}
.num{font-variant-numeric:tabular-nums;font-weight:700}
.wrap{width:100%;max-width:1240px;margin:0 auto;padding:0 24px}
@media(min-width:1400px){.wrap{max-width:1320px}}
.section{padding:88px 0}
.section-tight{padding:56px 0}
.section-head{max-width:760px;margin-bottom:36px}
.section-head .eyebrow{display:inline-block;font-size:13px;letter-spacing:2px;color:var(--brand-500);font-weight:600;margin-bottom:12px}
.section-head h2{margin-bottom:14px}
.section-head p{color:var(--text-2);font-size:16px;line-height:1.85;margin:0}
.hairline{height:1px;background:var(--line);border:0;margin:0}

/* ===== 顶部信息条 ===== */
.topbar{background:var(--brand-900);color:#fff;font-size:13px;line-height:1.6}
.topbar .wrap{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:8px;min-height:40px;padding-top:6px;padding-bottom:6px}
.topbar-left{display:flex;flex-wrap:wrap;gap:18px;align-items:center;opacity:.92}
.topbar-left span{display:inline-flex;align-items:center;gap:6px}
.topbar-right{display:flex;gap:16px;align-items:center;opacity:.9}
.topbar a{color:#fff;opacity:.85}
.topbar a:hover{color:var(--brand-300);opacity:1}
.dot{width:6px;height:6px;border-radius:50%;background:var(--brand-300);display:inline-block}

/* ===== 头部 ===== */
.site-header{position:sticky;top:0;z-index:200;background:rgba(255,255,255,.94);backdrop-filter:saturate(160%) blur(10px);border-bottom:1px solid var(--line);transition:box-shadow .25s var(--ease),background .25s var(--ease)}
.site-header.is-stuck{box-shadow:var(--sh-1);background:rgba(255,255,255,.98)}
.header-inner{display:flex;align-items:center;gap:24px;min-height:84px;transition:min-height .25s var(--ease)}
.site-header.is-stuck .header-inner{min-height:68px}
.brand{display:flex;align-items:center;gap:12px;flex:0 0 auto;color:var(--text)}
.brand:hover{color:var(--text)}
.brand-mark{width:42px;height:42px;border-radius:12px;background:var(--grad-brand);display:flex;align-items:center;justify-content:center;box-shadow:var(--sh-1)}
.brand-mark svg{width:24px;height:24px}
.brand-text{font-family:var(--fs-title);font-size:19px;font-weight:700;letter-spacing:.5px;white-space:nowrap}
.brand-sub{display:block;font-family:var(--fs-body);font-size:11px;font-weight:400;letter-spacing:2px;color:var(--muted)}
.search-pill{flex:1 1 auto;max-width:640px;margin:0 auto;height:56px;display:flex;align-items:center;gap:12px;background:#fff;border:1px solid var(--line);border-radius:var(--r-pill);padding:0 8px 0 20px;box-shadow:0 8px 24px -18px rgba(8,42,43,.4);transition:border-color .2s var(--ease),box-shadow .2s var(--ease)}
.search-pill:focus-within{border-color:var(--brand-500);box-shadow:0 0 0 4px rgba(18,114,107,.14)}
.search-pill svg{width:20px;height:20px;flex:0 0 auto;color:var(--brand-500)}
.search-pill input{flex:1 1 auto;border:0;background:transparent;height:100%;font-size:15px;min-width:0}
.search-pill input::placeholder{color:var(--muted)}
.search-pill input:focus{outline:none}
.search-pill button{flex:0 0 auto;width:42px;height:42px;border:0;border-radius:50%;background:var(--grad-brand);display:flex;align-items:center;justify-content:center;cursor:pointer;transition:transform .2s var(--ease),filter .2s var(--ease)}
.search-pill button svg{width:18px;height:18px;color:#fff}
.search-pill button:hover{filter:brightness(1.08);transform:translateX(1px)}
.header-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.icon-btn{width:44px;height:44px;border-radius:50%;border:1px solid var(--line);background:#fff;display:flex;align-items:center;justify-content:center;color:var(--brand-700);transition:all .2s var(--ease)}
.icon-btn svg{width:19px;height:19px}
.icon-btn:hover{border-color:var(--brand-300);background:var(--brand-050);color:var(--brand-700)}
.nav-toggle{display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);background:#fff;flex-direction:column;align-items:center;justify-content:center;gap:5px;cursor:pointer}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--brand-700);border-radius:2px;transition:transform .25s var(--ease),opacity .25s var(--ease)}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ===== 导航 chips ===== */
.main-nav{border-top:1px solid var(--line)}
.nav-inner{display:flex;align-items:center;gap:10px;padding-top:12px;padding-bottom:12px;overflow-x:auto;scrollbar-width:none;scroll-snap-type:x proximity}
.nav-inner::-webkit-scrollbar{display:none}
.nav-link{position:relative;flex:0 0 auto;font-size:14px;font-weight:600;color:var(--text-2);padding:7px 16px;border-radius:var(--r-pill);background:var(--surface-2);border:1px solid var(--line);scroll-snap-align:start;transition:all .2s var(--ease)}
.nav-link:hover{background:var(--brand-050);color:var(--brand-700);border-color:var(--brand-300)}
.nav-link.is-active{background:var(--brand-700);color:#fff;border-color:var(--brand-700)}
.nav-link.is-active::after{content:"";position:absolute;left:50%;transform:translateX(-50%);bottom:-8px;width:22px;height:3px;border-radius:2px;background:var(--accent)}
.nav-note{flex:0 0 auto;margin-left:auto;font-size:13px;color:var(--muted);white-space:nowrap}
.mobile-panel{display:none;background:#fff;border-top:1px solid var(--line);padding:20px 0 28px}
.mobile-panel.is-open{display:block}
.mobile-panel .search-pill{max-width:none;margin:0 0 18px}
.mobile-links{display:flex;flex-direction:column;gap:6px;margin-bottom:18px}
.mobile-links a{font-size:17px;font-weight:600;color:var(--text);padding:12px 4px;border-bottom:1px solid var(--line)}
.mobile-links a.is-active{color:var(--brand-700)}

/* ===== 按钮 ===== */
.btn-pill{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:52px;padding:0 28px;border-radius:var(--r-pill);font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;transition:all .22s var(--ease)}
.btn-primary-pill{background:var(--grad-brand);color:#fff;box-shadow:var(--sh-1)}
.btn-primary-pill:hover{filter:brightness(1.06);transform:translateY(-2px);color:#fff;box-shadow:var(--sh-2)}
.btn-primary-pill:active{transform:translateY(0)}
.btn-outline-pill{background:#fff;border:1.5px solid var(--brand-700);color:var(--brand-700)}
.btn-outline-pill:hover{background:var(--brand-050);color:var(--brand-700);transform:translateY(-2px)}
.btn-arrow{display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:600;color:var(--brand-700)}
.btn-arrow svg{width:16px;height:16px;transition:transform .2s var(--ease)}
.btn-arrow:hover svg{transform:translateX(4px)}

/* ===== 标签 / 徽章 ===== */
.tag{display:inline-flex;align-items:center;gap:6px;font-size:12px;line-height:1;padding:6px 12px;border-radius:var(--r-pill);background:var(--brand-050);color:var(--brand-700);font-weight:600}
.tag-accent{background:var(--accent-soft);color:var(--accent-ink)}
.stat{background:#fff;border:1px solid var(--line);border-radius:var(--r-md);padding:16px 18px;min-width:132px;position:relative;overflow:hidden;box-shadow:var(--sh-1)}
.stat::before{content:"";position:absolute;inset:0 0 auto 0;height:3px;background:var(--grad-accent)}
.stat .stat-num{font-size:34px;line-height:1.1;color:var(--brand-700)}
.stat .stat-num small{font-size:13px;margin-left:4px;color:var(--muted);font-weight:600}
.stat .stat-label{display:block;font-size:12px;color:var(--muted);margin-top:8px;letter-spacing:.4px}

/* ===== Hero ===== */
.hero{padding:64px 0 72px;position:relative;overflow:hidden}
.hero::before{content:"";position:absolute;right:-180px;top:-160px;width:560px;height:560px;border-radius:50%;border:1px solid rgba(18,114,107,.08);pointer-events:none}
.hero::after{content:"";position:absolute;right:-90px;top:-60px;width:360px;height:360px;border-radius:50%;border:1px solid rgba(18,114,107,.08);pointer-events:none}
.hero-grid{display:grid;grid-template-columns:5fr 7fr;gap:56px;align-items:center;position:relative;z-index:1}
.hero h1{max-width:15em}
.hero-underline{width:64px;height:3px;border-radius:2px;background:var(--grad-accent);margin:22px 0 20px}
.hero-sub{font-size:17px;line-height:1.9;color:var(--text-2);max-width:34em}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin:30px 0 34px}
.hero-stats{display:flex;flex-wrap:wrap;gap:14px}
.hero-visual{position:relative}
.hero-card{border-radius:var(--r-xl);overflow:hidden;box-shadow:var(--sh-2);position:relative;aspect-ratio:4/3;background:var(--brand-050)}
.hero-card img{width:100%;height:100%;object-fit:cover}
.hero-card::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(8,42,43,.45),rgba(8,42,43,.12) 60%,rgba(8,42,43,0));pointer-events:none}
.hero-float{position:absolute;right:16px;bottom:16px;background:#fff;border-radius:var(--r-md);padding:14px 18px;box-shadow:var(--sh-2);border:1px solid var(--line);min-width:180px}
.hero-float .num{font-size:26px;color:var(--brand-700);display:block;line-height:1.2}
.hero-float span.hero-float-label{font-size:12px;color:var(--muted)}

/* ===== 信任条 ===== */
.trust{padding:8px 0 0}
.trust-row{display:flex;flex-wrap:wrap;align-items:center;gap:14px 32px;padding:22px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.trust-title{font-size:13px;color:var(--muted);letter-spacing:1px}
.trust-item{font-size:14px;font-weight:600;color:var(--muted);opacity:.6;transition:all .25s var(--ease)}
.trust-item:hover{opacity:1;color:var(--brand-700);filter:saturate(120%)}

/* ===== 卡片通用 ===== */
.card-soft{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);padding:28px;box-shadow:var(--sh-1);transition:border-color .22s var(--ease),box-shadow .22s var(--ease),transform .22s var(--ease);height:100%;display:flex;flex-direction:column}
.card-soft:hover{border-color:var(--brand-300);box-shadow:var(--sh-2);transform:translateY(-3px)}
.card-soft h3{margin-bottom:10px}
.card-soft p{font-size:14.5px;line-height:1.85;color:var(--text-2);margin-bottom:16px}
.card-ic{width:46px;height:46px;border-radius:var(--r-sm);background:var(--brand-050);color:var(--brand-700);display:flex;align-items:center;justify-content:center;margin-bottom:16px}
.card-ic svg{width:22px;height:22px}
.card-soft .btn-arrow{margin-top:auto}
.bento-lead{border-radius:var(--r-xl);padding:0;overflow:hidden;display:flex;flex-direction:column}
.bento-lead .bento-media{aspect-ratio:16/10;overflow:hidden}
.bento-lead .bento-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease)}
.bento-lead:hover .bento-media img{transform:scale(1.03)}
.bento-lead .bento-body{padding:30px 34px 34px;display:flex;flex-direction:column;flex:1 1 auto}
.bento-lead .bento-body h3{font-size:22px}
.bento-lead .bento-body p{font-size:15px}

/* ===== 数据通栏 ===== */
.band{margin:0 24px}
.band-inner{border-radius:var(--r-xl);background:var(--grad-brand);position:relative;overflow:hidden;padding:64px 40px 48px}
.band-inner::before{content:"";position:absolute;inset:0;background-image:radial-gradient(rgba(255,255,255,.06) 1px,transparent 1px);background-size:18px 18px;opacity:.6;pointer-events:none}
.band-copy{position:relative;z-index:1;color:#fff;max-width:720px;margin-bottom:40px}
.band-copy h2{color:#fff;margin-bottom:14px}
.band-copy p{color:rgba(255,255,255,.82);font-size:15.5px;line-height:1.9}
.band-cards{position:relative;z-index:1;display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-bottom:-88px}
.band-cards .stat{box-shadow:var(--sh-2);border-color:transparent}

/* ===== 案例 ===== */
.case-grid{display:grid;grid-template-columns:7fr 5fr;gap:24px}
.case-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-1);transition:box-shadow .25s var(--ease),transform .25s var(--ease)}
.case-card:hover{box-shadow:var(--sh-2);transform:translateY(-3px)}
.case-media{position:relative;overflow:hidden;aspect-ratio:16/9;background:var(--brand-050)}
.case-card.tall .case-media{aspect-ratio:16/10}
.case-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease)}
.case-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(8,42,43,0) 40%,rgba(8,42,43,.35));transition:opacity .3s var(--ease)}
.case-card:hover .case-media img{transform:scale(1.03)}
.case-card:hover .case-media::after{opacity:.9}
.case-body{padding:22px 26px 26px}
.case-body h3{font-size:19px;margin:12px 0 8px}
.case-body p{font-size:14px;color:var(--text-2);margin:0}

/* ===== 解决方案交替 ===== */
.sol-row{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;padding:56px 0;border-bottom:1px solid var(--line)}
.sol-row:last-child{border-bottom:0;padding-bottom:0}
.sol-row.reverse .sol-media{order:2}
.sol-num{font-family:var(--fs-title);font-size:48px;line-height:1;color:transparent;-webkit-text-stroke:1px var(--accent);font-weight:700;margin-bottom:14px}
.sol-row h3{font-size:24px;margin-bottom:14px}
.sol-row p{color:var(--text-2);font-size:15.5px}
.sol-list{margin-top:20px;display:flex;flex-direction:column;gap:10px}
.sol-list li{position:relative;padding-left:22px;font-size:14.5px;color:var(--text-2)}
.sol-list li::before{content:"";position:absolute;left:0;top:11px;width:8px;height:8px;border-radius:2px;background:var(--grad-accent)}
.sol-media{border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-1);aspect-ratio:16/10;background:var(--brand-050)}
.sol-media img{width:100%;height:100%;object-fit:cover}

/* ===== 最新信息（CMS） ===== */
.news-grid{display:grid;grid-template-columns:5fr 7fr;gap:24px;align-items:start}
.news-lead{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-1);transition:box-shadow .25s var(--ease),transform .25s var(--ease)}
.news-lead:hover{box-shadow:var(--sh-2);transform:translateY(-3px)}
.news-lead .news-media{aspect-ratio:16/10;overflow:hidden;background:var(--brand-050)}
.news-lead .news-media img{width:100%;height:100%;object-fit:cover}
.news-lead .news-body{padding:26px 28px 30px}
.news-lead h3{font-size:20px;margin:12px 0 10px}
.news-lead h3 a{color:var(--text)}
.news-lead h3 a:hover{color:var(--brand-700)}
.news-lead p{font-size:14.5px;color:var(--text-2);margin-bottom:14px}
.news-meta{display:flex;flex-wrap:wrap;align-items:center;gap:12px;font-size:13px;color:var(--muted)}
.news-meta .date{font-variant-numeric:tabular-nums}
.news-list{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh-1);overflow:hidden}
.news-row{display:block;padding:20px 24px;border-left:3px solid transparent;border-bottom:1px solid var(--line);transition:all .2s var(--ease)}
.news-row:last-child{border-bottom:0}
.news-row:hover{background:var(--surface-2);border-left-color:var(--brand-500)}
.news-row h4{font-family:var(--fs-body);font-size:17px;font-weight:600;line-height:1.5;margin:0 0 6px;color:var(--text)}
.news-row:hover h4{color:var(--brand-700)}
.news-row p{font-size:14px;color:var(--muted);margin:0 0 10px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.news-row .news-meta{font-size:12.5px}
.news-empty{background:#fff;border:1px dashed var(--line-strong);border-radius:var(--r-lg);padding:64px 24px;text-align:center}
.news-empty svg{width:48px;height:48px;color:var(--brand-300);margin:0 auto 16px}
.news-empty p{color:var(--muted);font-size:15px;margin-bottom:18px}

/* ===== FAQ ===== */
.faq-list{display:flex;flex-direction:column;gap:12px}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:var(--r-md);box-shadow:var(--sh-1);overflow:hidden;transition:border-color .2s var(--ease),box-shadow .2s var(--ease)}
.faq-item:hover{border-color:var(--brand-300)}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;text-align:left;background:transparent;border:0;padding:20px 24px;font-size:17px;font-weight:600;line-height:1.6;cursor:pointer;position:relative;color:var(--text)}
.faq-q::before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:transparent;transition:background .2s var(--ease)}
.faq-icon{flex:0 0 auto;width:20px;height:20px;position:relative}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--brand-500);border-radius:2px;transition:transform .25s var(--ease),background .25s var(--ease)}
.faq-icon::before{left:0;top:9px;width:20px;height:2px}
.faq-icon::after{left:9px;top:0;width:2px;height:20px}
.faq-item.open .faq-icon::after{transform:rotate(90deg);opacity:0}
.faq-item.open .faq-icon::before{background:var(--accent)}
.faq-item.open{border-color:var(--brand-300);box-shadow:var(--sh-2)}
.faq-item.open .faq-q::before{background:var(--brand-500)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s var(--ease)}
.faq-item.open .faq-a{max-height:340px}
.faq-a p{padding:0 24px 22px 24px;font-size:15px;line-height:1.85;color:var(--text-2)}

/* ===== 联系区 ===== */
.contact-grid{display:grid;grid-template-columns:7fr 5fr;gap:24px;align-items:start}
.form-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:34px;box-shadow:var(--sh-1)}
.field{margin-bottom:18px}
.field label{display:block;font-size:13px;font-weight:600;margin-bottom:8px;color:var(--text-2)}
.field .req{color:var(--danger);margin-left:4px}
.field input,.field textarea,.field select{width:100%;height:52px;border:1px solid var(--line);border-radius:var(--r-md);padding:0 16px;background:var(--surface-2);font-size:15px;transition:border-color .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease)}
.field textarea{height:auto;min-height:120px;padding:14px 16px;line-height:1.8;resize:vertical}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--brand-500);background:#fff;box-shadow:0 0 0 4px rgba(18,114,107,.14)}
.check{display:flex;align-items:flex-start;gap:10px;font-size:13.5px;color:var(--text-2);line-height:1.7}
.check input{appearance:none;width:18px;height:18px;flex:0 0 auto;margin-top:3px;border:1.5px solid var(--line-strong);border-radius:5px;background:#fff;cursor:pointer;position:relative;transition:all .2s var(--ease)}
.check input:checked{background:var(--brand-500);border-color:var(--brand-500)}
.check input:checked::after{content:"";position:absolute;left:5px;top:1px;width:5px;height:10px;border:solid #fff;border-width:0 2px 2px 0;transform:rotate(45deg)}
.info-card{background:var(--surface-2);border:1px solid var(--line);border-radius:var(--r-lg);padding:32px;position:relative;overflow:hidden}
.info-card::before{content:"";position:absolute;right:-60px;bottom:-60px;width:200px;height:200px;border-radius:50%;border:1px solid rgba(18,114,107,.12)}
.info-card h3{margin-bottom:18px}
.info-line{display:flex;gap:12px;padding:14px 0;border-bottom:1px dashed var(--line-strong);position:relative;z-index:1}
.info-line:last-of-type{border-bottom:0}
.info-line svg{width:20px;height:20px;color:var(--brand-500);flex:0 0 auto;margin-top:4px}
.info-line b{display:block;font-size:13px;color:var(--muted);font-weight:600}
.info-line span{font-size:15px;color:var(--text)}

/* ===== 通用 CTA 条 ===== */
.cta-band{border-radius:var(--r-xl);background:var(--grad-brand);color:#fff;padding:48px 44px;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:26px;position:relative;overflow:hidden}
.cta-band::before{content:"";position:absolute;left:-80px;top:-80px;width:280px;height:280px;border-radius:50%;border:1px solid rgba(255,255,255,.1)}
.cta-band h2{color:#fff;font-size:clamp(22px,2.2vw,30px);margin-bottom:8px;position:relative;z-index:1}
.cta-band p{color:rgba(255,255,255,.82);font-size:15px;margin:0;position:relative;z-index:1}
.cta-band .btn-pill{position:relative;z-index:1}

/* ===== 页脚 ===== */
.site-footer{background:var(--brand-900);color:#fff;margin-top:96px;padding-top:64px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px;padding-bottom:48px}
.site-footer h4{font-family:var(--fs-body);font-size:14px;font-weight:700;letter-spacing:1px;color:#fff;margin-bottom:18px;opacity:.95}
.site-footer p,.site-footer li,.site-footer a{font-size:14px;color:rgba(255,255,255,.72);line-height:1.9}
.site-footer a:hover{color:var(--brand-300)}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:18px}
.footer-brand .brand-mark{box-shadow:none;background:rgba(255,255,255,.1)}
.footer-brand strong{font-family:var(--fs-title);font-size:17px;font-weight:700;letter-spacing:.4px}
.footer-list li{margin-bottom:10px}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding:22px 0;display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:13px;color:rgba(255,255,255,.6)}
.footer-bottom a{font-size:13px}
.qr-box{width:104px;height:104px;border-radius:var(--r-sm);background:rgba(255,255,255,.08);display:flex;align-items:center;justify-content:center;color:rgba(255,255,255,.5);font-size:12px;text-align:center;padding:10px}

/* ===== 响应式 ===== */
@media(max-width:1199px){
  .header-inner{gap:16px}
  .nav-note{display:none}
  .case-grid{grid-template-columns:1fr 1fr}
  .band-cards{grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:-72px}
}
@media(max-width:991px){
  .section{padding:64px 0}
  .search-pill{max-width:none}
  .header-inner{flex-wrap:wrap;padding-top:14px;padding-bottom:14px;min-height:auto}
  .search-pill{order:3;flex:1 1 100%;margin:12px 0 0}
  .nav-toggle{display:flex}
  .main-nav{display:none}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .hero-visual{order:2}
  .band-cards{grid-template-columns:repeat(2,1fr);margin-bottom:-60px}
  .case-grid,.news-grid,.contact-grid,.sol-row{grid-template-columns:1fr}
  .sol-row{padding:36px 0;gap:28px}
  .sol-row.reverse .sol-media{order:0}
  .footer-grid{grid-template-columns:1fr 1fr}
  .cta-band{padding:36px 28px}
}
@media(max-width:767px){
  .topbar-left span:nth-child(3){display:none}
  .brand-text{font-size:17px}
  .section{padding:52px 0}
  .hero{padding:36px 0 48px}
  .hero-cta .btn-pill{width:100%}
  .hero-stats{gap:10px}
  .stat{min-width:0;flex:1 1 calc(50% - 5px)}
  .band{margin:0 12px}
  .band-inner{padding:44px 24px 36px}
  .band-cards{grid-template-columns:repeat(2,1fr)}
  .news-lead .news-body{padding:20px 22px 24px}
  .faq-q{font-size:16px;padding:18px 20px}
  .faq-a p{padding:0 20px 20px 20px}
  .form-card,.info-card{padding:24px}
  .card-soft{padding:24px}
}
@media(max-width:519px){
  .wrap{padding:0 16px}
  .band-cards{grid-template-columns:1fr;margin-bottom:-48px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .bento-lead .bento-body{padding:24px}
  .stat{flex:1 1 100%}
}

/* roulang page: article */
:root{
  --brand-900:#082A2B;--brand-700:#0E4A46;--brand-500:#12726B;--brand-300:#4FA79B;--brand-050:#E6F1EF;
  --grad-brand:linear-gradient(115deg,#082A2B 0%,#0E4A46 45%,#12726B 100%);
  --grad-accent:linear-gradient(100deg,#C98A32,#E0A24A 60%,#F0C176);
  --bg:#F6F4F0;--surface:#FFFFFF;--surface-2:#FBF9F6;--line:#E3DED6;--line-strong:#CFC7BB;
  --text:#10201F;--text-2:#3C4A48;--muted:#6B7774;
  --ok:#2F7D63;--accent:#E0A24A;--danger:#C4553B;
  --r-xl:28px;--r-lg:20px;--r-md:14px;--r-sm:10px;--r-pill:999px;
  --sh-1:0 1px 2px rgba(8,42,43,.04),0 12px 32px -14px rgba(8,42,43,.18);
  --sh-2:0 24px 56px -24px rgba(8,42,43,.28);
  --t:220ms cubic-bezier(.2,.7,.2,1);
  --serif:'Noto Serif SC','Source Han Serif SC','Songti SC','SimSun',serif;
  --sans:-apple-system,'PingFang SC','Hiragino Sans GB','Microsoft YaHei','Noto Sans SC',sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--bg);color:var(--text);font-family:var(--sans);
  font-size:16px;line-height:1.85;letter-spacing:.01em;
}
img{max-width:100%;display:block}
a{color:var(--brand-700);text-decoration:none;transition:color var(--t)}
a:hover{color:var(--brand-500)}
h1,h2,h3,h4{font-family:var(--serif);margin:0;color:var(--text)}
p{margin:0 0 20px}
ul,ol{margin:0 0 20px;padding-left:22px}
button{font-family:inherit}
input,textarea,select{font-family:inherit;font-size:16px}
:focus-visible{outline:3px solid rgba(224,162,74,.5);outline-offset:2px}
.wrap{max-width:1240px;margin:0 auto;padding:0 20px}
@media(min-width:1400px){.wrap{max-width:1320px}}
.eyebrow{font-size:12px;letter-spacing:.22em;text-transform:uppercase;color:var(--brand-500);font-weight:700;margin-bottom:12px}
.tag-pill{display:inline-block;font-size:12px;padding:4px 12px;border-radius:var(--r-pill);background:var(--brand-050);color:var(--brand-700);font-weight:600}
.tag-pill.warm{background:#FBF1E2;color:#8A5A18}

/* ============ 顶部信息条 ============ */
.topbar{background:var(--brand-900);color:rgba(255,255,255,.86);font-size:13px;line-height:38px}
.topbar .wrap{display:flex;justify-content:space-between;align-items:center;gap:16px}
.topbar a{color:rgba(255,255,255,.86);margin-left:18px;font-size:13px}
.topbar a:hover{color:var(--brand-300)}
.topbar .topbar-info{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
@media(max-width:767px){.topbar .wrap{justify-content:center}.topbar .topbar-info{font-size:12px}.topbar .topbar-links{display:none}}

/* ============ Header ============ */
.site-header{position:sticky;top:0;z-index:60;background:rgba(255,255,255,.94);border-bottom:1px solid var(--line);transition:box-shadow var(--t),background var(--t)}
@supports(backdrop-filter:blur(10px)){.site-header{backdrop-filter:saturate(160%) blur(10px)}}
.site-header.is-scrolled{box-shadow:var(--sh-1)}
.header-main{display:flex;align-items:center;gap:22px;padding:14px 20px;transition:padding var(--t)}
.site-header.is-scrolled .header-main{padding:8px 20px}
.brand{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.brand-mark{width:44px;height:44px;border-radius:14px;background:var(--grad-brand);display:grid;place-items:center;box-shadow:var(--sh-1);flex:0 0 auto}
.brand-mark svg{width:24px;height:24px}
.brand-text strong{display:block;font-family:var(--serif);font-size:18px;line-height:1.25;color:var(--brand-900);letter-spacing:.02em}
.brand-text small{display:block;font-size:11px;color:var(--muted);letter-spacing:.16em}
.search-pill{flex:1 1 auto;max-width:640px;margin:0 auto;display:flex;align-items:center;gap:10px;height:56px;padding:0 8px 0 20px;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-pill);box-shadow:var(--sh-1);transition:border-color var(--t),box-shadow var(--t)}
.search-pill:focus-within{border-color:var(--brand-500);box-shadow:0 0 0 4px rgba(18,114,107,.14),var(--sh-1)}
.search-pill svg{width:20px;height:20px;flex:0 0 auto;stroke:var(--brand-500);fill:none;stroke-width:2;stroke-linecap:round}
.search-pill input{flex:1 1 auto;border:0;outline:0;background:transparent;font-size:15px;color:var(--text);min-width:0}
.search-pill input::placeholder{color:#93A09D}
.search-pill button{flex:0 0 auto;width:42px;height:42px;border:0;border-radius:50%;background:var(--grad-brand);display:grid;place-items:center;cursor:pointer;transition:filter var(--t),transform var(--t)}
.search-pill button:hover{filter:brightness(1.06);transform:translateY(-1px)}
.search-pill button svg{width:18px;height:18px;stroke:#fff}
.header-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:52px;padding:0 28px;border-radius:var(--r-pill);font-weight:600;font-size:15px;border:0;cursor:pointer;transition:all var(--t);white-space:nowrap}
.btn-primary{background:var(--grad-brand);color:#fff;box-shadow:var(--sh-1)}
.btn-primary:hover{color:#fff;filter:brightness(1.06);transform:translateY(-2px);box-shadow:var(--sh-2)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:#fff;color:var(--brand-700);border:1.5px solid var(--brand-700)}
.btn-ghost:hover{background:var(--brand-050);color:var(--brand-700)}
.btn-sm{height:44px;padding:0 20px;font-size:14px}
.icon-btn{width:46px;height:46px;border-radius:50%;border:1px solid var(--line);background:#fff;display:grid;place-items:center;cursor:pointer;transition:all var(--t)}
.icon-btn:hover{border-color:var(--brand-300);background:var(--brand-050)}
.icon-btn svg{width:20px;height:20px;stroke:var(--brand-700);fill:none;stroke-width:1.8;stroke-linecap:round}
.menu-toggle{display:none;width:46px;height:46px;border-radius:14px;border:1px solid var(--line);background:#fff;cursor:pointer;position:relative}
.menu-toggle span{position:absolute;left:13px;right:13px;height:2px;background:var(--brand-700);border-radius:2px;transition:all var(--t)}
.menu-toggle span:nth-child(1){top:16px}
.menu-toggle span:nth-child(2){top:22px}
.menu-toggle span:nth-child(3){top:28px}
.menu-toggle.is-open span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.menu-toggle.is-open span:nth-child(2){opacity:0}
.menu-toggle.is-open span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

/* ============ 导航 ============ */
.main-nav{border-top:1px solid var(--line);background:rgba(255,255,255,.7)}
.nav-inner{display:flex;align-items:center;gap:8px;flex-wrap:wrap;padding:10px 20px}
.nav-link{position:relative;font-weight:600;font-size:15px;color:var(--text-2);padding:8px 14px;border-radius:var(--r-sm)}
.nav-link::after{content:"";position:absolute;left:14px;right:14px;bottom:4px;height:3px;border-radius:3px;background:var(--accent);transform:scaleX(0);transform-origin:left;transition:transform var(--t)}
.nav-link:hover{color:var(--brand-700)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--brand-700)}
.nav-link.is-active::after{transform:scaleX(1)}
.nav-note{margin-left:auto;font-size:13px;color:var(--muted)}
@media(max-width:1199px){.nav-note{display:none}}

/* ============ 搜索下快捷 chips ============ */
.chips{background:rgba(255,255,255,.55);border-bottom:1px solid var(--line)}
.chips-inner{display:flex;gap:10px;padding:10px 20px;overflow-x:auto;scroll-snap-type:x proximity;scrollbar-width:none}
.chips-inner::-webkit-scrollbar{display:none}
.chip{flex:0 0 auto;scroll-snap-align:start;font-size:13px;font-weight:600;padding:6px 16px;border-radius:var(--r-pill);background:var(--surface-2);border:1px solid var(--line);color:var(--text-2)}
.chip:hover{background:var(--brand-050);color:var(--brand-700);border-color:var(--brand-300)}

/* ============ 移动端面板 ============ */
.mobile-panel{display:none;position:fixed;inset:0;top:0;z-index:80;background:#fff;padding:20px;overflow-y:auto}
.mobile-panel.is-open{display:block}
.mobile-panel .search-pill{max-width:none;margin:12px 0 22px}
.mobile-nav{display:flex;flex-direction:column;gap:4px;margin-bottom:24px}
.mobile-nav a{font-family:var(--serif);font-size:20px;font-weight:600;color:var(--text);padding:14px 4px;border-bottom:1px solid var(--line)}
.mobile-nav a.is-active{color:var(--brand-700)}
.mobile-close{width:46px;height:46px;border-radius:50%;border:1px solid var(--line);background:#fff;display:grid;place-items:center;cursor:pointer;margin-left:auto}

/* ============ 面包屑 ============ */
.crumb-bar{background:var(--surface-2);border-bottom:1px solid var(--line)}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;list-style:none;margin:0;padding:14px 0;font-size:13px;color:var(--muted)}
.crumb li{display:flex;align-items:center;gap:8px;max-width:100%}
.crumb li+li::before{content:"/";color:var(--line-strong)}
.crumb li span{max-width:340px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.crumb a{color:var(--muted)}
.crumb a:hover{color:var(--brand-700)}

/* ============ 文章头部 ============ */
.article-hero{padding:48px 0 32px;border-bottom:1px solid var(--line);background:linear-gradient(180deg,#fff 0%,var(--bg) 100%)}
.article-hero h1{font-size:clamp(26px,3.2vw,36px);line-height:1.35;font-weight:700;max-width:900px}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-top:20px;font-size:13px;color:var(--muted)}
.meta-row .dot{width:4px;height:4px;border-radius:50%;background:var(--line-strong)}
.read-badge{display:inline-flex;align-items:center;gap:6px;padding:4px 12px;border-radius:var(--r-pill);background:var(--brand-050);color:var(--brand-700);font-weight:600;font-variant-numeric:tabular-nums}
.font-tools{margin-left:auto;display:flex;align-items:center;gap:8px}
.font-tools span{font-size:12px}
.font-tools button{width:34px;height:34px;border-radius:10px;border:1px solid var(--line);background:#fff;color:var(--text-2);font-weight:700;cursor:pointer;transition:all var(--t);line-height:1}
.font-tools button:hover{border-color:var(--brand-300);color:var(--brand-700)}
.font-tools button.is-active{background:var(--brand-050);border-color:var(--brand-300);color:var(--brand-700)}

/* ============ 正文布局 ============ */
.article-main{padding:56px 0 88px}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:52px;align-items:start}
.article-paper{max-width:800px}
@media(max-width:991px){.article-layout{grid-template-columns:1fr;gap:40px}.article-paper{max-width:100%}}

.article-body{font-size:16.5px;line-height:1.9;color:var(--text-2)}
.article-body>p:first-of-type{font-size:17px;color:var(--text)}
.article-body p{margin:0 0 22px}
.article-body h2{font-size:clamp(21px,2.2vw,26px);line-height:1.45;margin:40px 0 16px;padding-left:14px;border-left:3px solid var(--brand-500);color:var(--text)}
.article-body h3{font-size:20px;line-height:1.5;margin:32px 0 14px;color:var(--brand-900)}
.article-body h4{font-size:17px;margin:24px 0 12px}
.article-body a{border-bottom:1px solid var(--brand-300)}
.article-body ul,.article-body ol{margin:0 0 22px;padding-left:24px}
.article-body li{margin-bottom:10px;line-height:1.9}
.article-body li::marker{color:var(--brand-500);font-weight:700}
.article-body blockquote{margin:24px 0;padding:18px 22px;background:var(--surface-2);border-left:4px solid var(--accent);border-radius:var(--r-md);color:var(--text)}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:var(--r-md);margin:24px auto;box-shadow:var(--sh-1)}
.article-body figure{margin:24px 0}
.article-body figcaption{text-align:center;font-size:13px;color:var(--muted);margin-top:10px}
.article-body table{width:100%;border-collapse:separate;border-spacing:0;margin:24px 0;border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden;font-size:15px}
.article-body thead th{background:var(--brand-050);color:var(--brand-900);font-weight:700;text-align:left}
.article-body th,.article-body td{padding:12px 16px;border-bottom:1px solid var(--line)}
.article-body tbody tr:nth-child(even){background:var(--surface-2)}
.article-body tbody tr:last-child td{border-bottom:0}
.article-body code{background:var(--brand-050);color:var(--brand-900);padding:2px 6px;border-radius:6px;font-size:14px}

.article-body[data-fs="small"]{font-size:15px}
.article-body[data-fs="normal"]{font-size:16.5px}
.article-body[data-fs="large"]{font-size:18px;line-height:1.95}

.post-tags{display:flex;flex-wrap:wrap;gap:10px;margin:40px 0 0;padding-top:26px;border-top:1px solid var(--line)}

/* ============ 侧栏 ============ */
.side-col{position:sticky;top:96px;display:flex;flex-direction:column;gap:20px}
@media(max-width:991px){.side-col{position:static}}
.side-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh-1);padding:22px}
.side-card h3{font-size:16px;margin-bottom:14px;padding-bottom:12px;border-bottom:1px solid var(--line)}
.side-card h3::after{content:"";display:block;width:34px;height:3px;border-radius:3px;background:var(--accent);margin-top:8px}
.toc-list{list-style:none;margin:0;padding:0;max-height:340px;overflow-y:auto}
.toc-list li{margin-bottom:2px}
.toc-list a{display:block;font-size:13.5px;line-height:1.6;color:var(--text-2);padding:7px 10px;border-left:3px solid transparent;border-radius:0 8px 8px 0}
.toc-list a:hover{background:var(--surface-2);color:var(--brand-700)}
.toc-list a.is-active{background:var(--brand-050);color:var(--brand-700);border-left-color:var(--brand-500);font-weight:600}
.toc-list a.lv3{padding-left:22px;font-size:13px}
.tag-cloud{display:flex;flex-wrap:wrap;gap:8px}
.rel-mini{list-style:none;margin:0;padding:0}
.rel-mini li{padding:10px 0 10px 12px;border-left:3px solid transparent;border-bottom:1px dashed var(--line);transition:all var(--t)}
.rel-mini li:last-child{border-bottom:0}
.rel-mini li:hover{border-left-color:var(--brand-500);background:var(--surface-2)}
.rel-mini a{font-size:14px;color:var(--text);font-weight:600;line-height:1.6}
.rel-mini a:hover{color:var(--brand-700)}
.rel-mini span{display:block;font-size:12px;color:var(--muted);margin-top:4px;font-variant-numeric:tabular-nums}
.to-top-btn{width:100%;height:48px;border-radius:var(--r-md);border:1px solid var(--line);background:var(--surface);color:var(--brand-700);font-weight:600;cursor:pointer;transition:all var(--t)}
.to-top-btn:hover{background:var(--brand-050);border-color:var(--brand-300)}

/* ============ 空态 ============ */
.empty-state{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-xl);padding:56px 28px;text-align:center;box-shadow:var(--sh-1);max-width:800px}
.empty-state .glyph{width:72px;height:72px;margin:0 auto 20px;border-radius:22px;background:linear-gradient(135deg,var(--brand-050),var(--surface-2));display:grid;place-items:center}
.empty-state .glyph svg{width:32px;height:32px;stroke:var(--brand-500);fill:none;stroke-width:1.6;stroke-linecap:round}
.empty-state h2{font-size:22px;margin-bottom:12px}
.empty-state p{color:var(--muted);margin-bottom:24px}

/* ============ 上/下一篇 ============ */
.pn-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:56px}
@media(max-width:767px){.pn-grid{grid-template-columns:1fr}}
.pn-card{display:block;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);padding:22px;box-shadow:var(--sh-1);transition:all var(--t)}
.pn-card:hover{transform:translateY(-3px);border-color:var(--brand-300);box-shadow:var(--sh-2)}
.pn-card small{display:block;font-size:12px;color:var(--muted);margin-bottom:8px;letter-spacing:.12em}
.pn-card strong{display:block;font-family:var(--serif);font-size:17px;color:var(--text);line-height:1.55;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.pn-card .arrow{display:inline-block;margin-top:10px;font-size:13px;color:var(--brand-700);font-weight:600;transition:transform var(--t)}
.pn-card:hover .arrow{transform:translateX(4px)}
.pn-card.next{text-align:right}

/* ============ 相关推荐 ============ */
.rel-section{margin-top:72px;padding-top:48px;border-top:1px solid var(--line)}
.rel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:28px}
@media(max-width:991px){.rel-grid{grid-template-columns:1fr 1fr}}
@media(max-width:640px){.rel-grid{grid-template-columns:1fr}}
.rel-card{display:block;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-1);transition:all var(--t);height:100%}
.rel-card:hover{transform:translateY(-3px);border-color:var(--brand-300);box-shadow:var(--sh-2)}
.rel-card .thumb{position:relative;aspect-ratio:16/10;overflow:hidden;background:linear-gradient(135deg,var(--brand-050),var(--surface-2))}
.rel-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform var(--t)}
.rel-card:hover .thumb img{transform:scale(1.03)}
.rel-card .body{padding:20px}
.rel-card h3{font-size:17px;line-height:1.55;margin:10px 0 10px;color:var(--text)}
.rel-card p{font-size:14px;color:var(--muted);margin:0 0 12px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.rel-card time{font-size:12.5px;color:var(--muted);font-variant-numeric:tabular-nums}

.back-cat{margin-top:48px;text-align:center}
.section-head{max-width:760px}
.section-head h2{font-size:clamp(22px,2.4vw,30px)}
.section-head p{color:var(--muted);margin-top:12px;font-size:15px}

/* ============ CTA 通栏 ============ */
.cta-band{margin:0 0 0;padding:0 0 88px}
.cta-box{background:var(--grad-brand);border-radius:var(--r-xl);padding:48px 44px;color:#fff;display:flex;flex-wrap:wrap;align-items:center;gap:26px;justify-content:space-between;box-shadow:var(--sh-2);position:relative;overflow:hidden}
.cta-box::after{content:"";position:absolute;right:-60px;top:-60px;width:280px;height:280px;border-radius:50%;border:1px solid rgba(255,255,255,.16)}
.cta-box h2{color:#fff;font-size:clamp(21px,2.4vw,28px);max-width:640px}
.cta-box p{color:rgba(255,255,255,.82);margin:12px 0 0;font-size:15px;max-width:640px}
.cta-box .btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.6)}
.cta-box .btn-ghost:hover{background:rgba(255,255,255,.14);color:#fff}

/* ============ 页脚 ============ */
.site-footer{background:var(--brand-900);color:rgba(255,255,255,.78);padding:64px 0 28px;font-size:14px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:32px}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.footer-brand .brand-mark{width:40px;height:40px;border-radius:12px}
.footer-brand strong{font-family:var(--serif);color:#fff;font-size:18px;letter-spacing:.02em}
.site-footer h4{color:#fff;font-size:15px;margin-bottom:16px}
.site-footer p{color:rgba(255,255,255,.7);line-height:1.9;margin-bottom:14px}
.footer-list{list-style:none;margin:0;padding:0}
.footer-list li{margin-bottom:10px}
.footer-list a{color:rgba(255,255,255,.78)}
.footer-list a:hover{color:var(--brand-300)}
.qr-box{margin-top:14px;width:112px;height:112px;border-radius:var(--r-md);border:1px dashed rgba(255,255,255,.32);display:grid;place-items:center;text-align:center;font-size:12px;color:rgba(255,255,255,.6);line-height:1.6;padding:10px}
.footer-bottom{margin-top:44px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;font-size:13px;color:rgba(255,255,255,.6)}
@media(max-width:991px){.footer-grid{grid-template-columns:1fr 1fr}}
@media(max-width:560px){.footer-grid{grid-template-columns:1fr;gap:26px}}

/* ============ 响应式 ============ */
@media(max-width:1199px){
  .search-pill{max-width:480px}
}
@media(max-width:991px){
  .header-actions .btn-primary{display:none}
  .menu-toggle{display:block}
  .main-nav,.chips{display:none}
  .search-pill{display:none}
  .header-main{padding:12px 20px}
}
@media(max-width:767px){
  .article-hero{padding:32px 0 24px}
  .article-main{padding:36px 0 56px}
  .cta-box{padding:32px 24px;border-radius:var(--r-lg)}
  .cta-band{padding-bottom:56px}
  .cta-box .btn{width:100%}
  .font-tools{margin-left:0;width:100%}
  .site-footer{padding:48px 0 24px}
}
@media(max-width:520px){
  .article-body h2{margin-top:32px}
  .side-card{padding:18px}
}

/* roulang page: category1 */
:root{
  --brand-900:#082A2B;
  --brand-700:#0E4A46;
  --brand-500:#12726B;
  --brand-300:#4FA79B;
  --brand-050:#E6F1EF;
  --grad-brand:linear-gradient(115deg,#082A2B 0%,#0E4A46 45%,#12726B 100%);
  --grad-accent:linear-gradient(100deg,#C98A32,#E0A24A 60%,#F0C176);
  --bg:#F6F4F0;
  --surface:#FFFFFF;
  --surface-2:#FBF9F6;
  --line:#E3DED6;
  --line-strong:#CFC7BB;
  --text:#10201F;
  --text-2:#3C4A48;
  --muted:#6B7774;
  --ok:#2F7D63;
  --accent:#E0A24A;
  --accent-soft:#FBF1E2;
  --accent-ink:#8A5A18;
  --danger:#C4553B;
  --r-xl:28px;
  --r-lg:20px;
  --r-md:14px;
  --r-sm:10px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(8,42,43,.04),0 12px 32px -14px rgba(8,42,43,.18);
  --sh-2:0 24px 56px -24px rgba(8,42,43,.28);
  --font-title:'Noto Serif SC','Source Han Serif SC','Songti SC','SimSun',serif;
  --font-body:-apple-system,'PingFang SC','Hiragino Sans GB','Microsoft YaHei','Noto Sans SC',sans-serif;
  --ease:cubic-bezier(.2,.7,.2,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.85;
}
h1,h2,h3,h4,h5{
  font-family:var(--font-title);
  margin:0;
  color:var(--text);
  line-height:1.3;
  letter-spacing:.01em;
}
p{margin:0 0 18px}
p:last-child{margin-bottom:0}
a{color:inherit;text-decoration:none;transition:color .22s var(--ease)}
img{max-width:100%;display:block}
ul,ol{margin:0;padding:0;list-style:none}
button,input,textarea,select{font:inherit;color:inherit}
button{cursor:pointer;border:none;background:none}
:focus-visible{outline:3px solid rgba(224,162,74,.5);outline-offset:2px;border-radius:6px}
.num{font-variant-numeric:tabular-nums;font-weight:700}
.wrap{width:100%;max-width:1240px;margin:0 auto;padding:0 20px}
@media (min-width:1400px){.wrap{max-width:1320px}}
.section{padding:88px 0}
.section-tight{padding:56px 0}
.sec-head{margin-bottom:36px;max-width:760px}
.sec-head h2{font-size:clamp(24px,2.6vw,36px);margin-bottom:14px}
.sec-head p{color:var(--text-2);font-size:15px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:700;letter-spacing:.14em;
  color:var(--brand-700);background:var(--brand-050);
  border-radius:var(--r-pill);padding:5px 14px;margin-bottom:16px;
}
.eyebrow::before{content:"";width:18px;height:1px;background:var(--accent)}
.rule-accent{width:64px;height:3px;border-radius:2px;background:var(--grad-accent);margin:18px 0 0}

/* 顶部信息条 */
.topbar{background:var(--brand-900);color:rgba(255,255,255,.86);font-size:13px;line-height:1.6}
.topbar-inner{display:flex;justify-content:space-between;align-items:center;gap:16px;min-height:40px;flex-wrap:wrap;padding-top:6px;padding-bottom:6px}
.topbar a{color:rgba(255,255,255,.86)}
.topbar a:hover{color:#fff}
.topbar-right{display:flex;gap:18px;align-items:center}

/* 头部 */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.92);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .24s var(--ease);
}
.site-header.is-scrolled{box-shadow:var(--sh-1)}
.header-inner{display:flex;align-items:center;gap:20px;padding-top:14px;padding-bottom:14px}
.brand{display:flex;align-items:center;gap:11px;flex:0 0 auto}
.brand-mark{
  width:42px;height:42px;border-radius:13px;
  background:var(--grad-brand);
  display:grid;place-items:center;
  box-shadow:0 10px 22px -12px rgba(8,42,43,.7);
}
.brand-mark svg{width:24px;height:24px}
.brand-text{font-family:var(--font-title);font-size:19px;font-weight:700;color:var(--brand-900);white-space:nowrap}
.search-pill{
  flex:1 1 auto;max-width:640px;margin:0 auto;
  display:flex;align-items:center;gap:10px;
  height:56px;padding:0 8px 0 20px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-pill);
  box-shadow:var(--sh-1);
  transition:border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.search-pill:focus-within{border-color:var(--brand-500);box-shadow:0 0 0 4px rgba(18,114,107,.14)}
.search-pill .fa-magnifying-glass{color:var(--brand-500);font-size:16px}
.search-pill input{
  flex:1;border:none;background:transparent;outline:none;
  font-size:15px;color:var(--text);min-width:0;
}
.search-pill input::placeholder{color:var(--muted)}
.search-pill button{
  width:42px;height:42px;border-radius:50%;
  background:var(--grad-brand);color:#fff;
  display:grid;place-items:center;flex:0 0 auto;
  transition:filter .22s var(--ease),transform .22s var(--ease);
}
.search-pill button:hover{filter:brightness(1.08);transform:translateY(-1px)}
.header-cta{
  flex:0 0 auto;
  display:inline-flex;align-items:center;gap:8px;
  height:50px;padding:0 26px;border-radius:var(--r-pill);
  background:var(--grad-brand);color:#fff;font-weight:600;font-size:15px;
  box-shadow:0 14px 28px -18px rgba(8,42,43,.85);
  transition:transform .22s var(--ease),filter .22s var(--ease);
}
.header-cta:hover{transform:translateY(-2px);filter:brightness(1.06)}
.nav-toggle{
  display:none;width:46px;height:46px;border-radius:var(--r-md);
  border:1px solid var(--line);background:var(--surface);
  align-items:center;justify-content:center;flex:0 0 auto;
}
.nav-toggle span{display:block;width:20px;height:2px;background:var(--brand-900);position:relative}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:20px;height:2px;background:var(--brand-900);transition:transform .22s var(--ease)
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.nav-toggle[aria-expanded="true"] span{background:transparent}
.nav-toggle[aria-expanded="true"] span::before{transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span::after{transform:translateY(-6px) rotate(-45deg)}

/* 主导航 */
.main-nav{border-top:1px solid var(--line);background:rgba(251,249,246,.85)}
.nav-inner{display:flex;align-items:center;gap:6px;flex-wrap:wrap;padding-top:8px;padding-bottom:8px}
.nav-link{
  position:relative;padding:9px 14px;border-radius:var(--r-sm);
  font-weight:600;font-size:15px;color:var(--text-2);
  transition:color .22s var(--ease),background .22s var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:3px;height:3px;
  background:var(--grad-accent);border-radius:2px;
  transform:scaleX(0);transform-origin:left;transition:transform .26s var(--ease);
}
.nav-link:hover{color:var(--brand-700);background:var(--brand-050)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--brand-700)}
.nav-link.is-active::after{transform:scaleX(1)}
.nav-note{margin-left:auto;font-size:13px;color:var(--muted)}

/* Hero */
.cat-hero{
  position:relative;color:#fff;overflow:hidden;
  border-radius:0 0 var(--r-xl) var(--r-xl);
  background-image:linear-gradient(115deg,rgba(8,42,43,.95) 0%,rgba(14,74,70,.9) 50%,rgba(18,114,107,.84) 100%),url(/assets/images/backpic/back-2.png);
  background-size:cover;background-position:center;
}
.cat-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(circle at 84% 26%,rgba(255,255,255,.10) 0 1px,transparent 1px);
  background-size:26px 26px;opacity:.5;
}
.cat-hero-inner{position:relative;z-index:2;padding:46px 0 44px;min-height:250px;display:flex;flex-direction:column;justify-content:space-between;gap:22px}
.crumb{margin-left:auto;font-size:13px;color:rgba(255,255,255,.72)}
.crumb ol{display:flex;gap:8px;align-items:center}
.crumb li{display:flex;align-items:center;gap:8px}
.crumb li+li::before{content:"/";color:rgba(255,255,255,.4)}
.crumb a{color:rgba(255,255,255,.78)}
.crumb a:hover{color:#fff}
.cat-hero h1{font-size:clamp(30px,4vw,50px);color:#fff;margin-bottom:14px}
.cat-hero .hero-underline{width:72px;height:3px;border-radius:2px;background:var(--grad-accent)}
.hero-sub{max-width:640px;font-size:16px;color:rgba(255,255,255,.86);margin-top:16px}

/* 数据条 */
.stat-strip{margin-top:-42px;position:relative;z-index:5}
.stat-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-xl);
  box-shadow:var(--sh-2);padding:28px;
}
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.stat-item{border-top:3px solid var(--accent);padding-top:14px}
.stat-item .num{font-size:clamp(30px,3.4vw,42px);color:var(--brand-900);line-height:1.15;display:block}
.stat-item .unit{font-size:15px;font-weight:700;color:var(--brand-500);margin-left:4px}
.stat-item .label{font-size:12px;color:var(--muted);letter-spacing:.04em;margin-top:6px;display:block}

/* 主体图文 */
.article-body h2{font-size:24px;margin:36px 0 14px;padding-left:14px;border-left:3px solid var(--brand-500)}
.article-body h2:first-child{margin-top:0}
.article-body h3{font-size:19px;margin:26px 0 10px;color:var(--brand-700)}
.article-body p{color:var(--text-2);line-height:1.9}
.point-list{margin:14px 0 8px;display:grid;gap:10px}
.point-list li{
  position:relative;padding-left:24px;font-size:15px;color:var(--text-2);line-height:1.8;
}
.point-list li::before{
  content:"";position:absolute;left:4px;top:12px;width:8px;height:8px;border-radius:2px;
  background:var(--grad-accent);
}
.quote-block{
  margin:26px 0;padding:20px 22px;background:var(--surface-2);
  border-left:4px solid var(--accent);border-radius:var(--r-md);
  color:var(--text-2);font-size:15px;
}
.side-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh-1);padding:28px;
  transition:border-color .22s var(--ease),box-shadow .22s var(--ease),transform .22s var(--ease);
}
.side-card:hover{border-color:var(--brand-300);box-shadow:var(--sh-2);transform:translateY(-3px)}
.side-card h3{font-size:18px;margin-bottom:12px}
.side-card p{font-size:14px;color:var(--muted);line-height:1.8}
.side-sticky{position:sticky;top:112px;display:grid;gap:20px}
.side-kv{display:grid;gap:10px;margin-top:16px}
.side-kv div{display:flex;justify-content:space-between;gap:12px;font-size:14px;border-bottom:1px dashed var(--line);padding-bottom:9px}
.side-kv span:first-child{color:var(--muted)}
.side-kv span:last-child{color:var(--brand-700);font-weight:600}
.img-card{
  position:relative;border-radius:var(--r-lg);overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--sh-1);background:var(--surface);
}
.img-card img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .4s var(--ease)}
.img-card:hover img{transform:scale(1.03)}
.img-card .cap{
  padding:14px 18px;font-size:13px;color:var(--muted);
  background:var(--surface);display:flex;align-items:center;gap:8px;
}
.img-card .cap i{color:var(--accent)}

/* 参数卡 */
.param-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.param-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:28px;box-shadow:var(--sh-1);
  transition:border-color .22s var(--ease),box-shadow .22s var(--ease),transform .22s var(--ease);
}
.param-card:hover{border-color:var(--brand-300);box-shadow:var(--sh-2);transform:translateY(-3px)}
.param-card .tag{
  display:inline-block;font-size:12px;padding:4px 12px;border-radius:var(--r-pill);
  background:var(--brand-050);color:var(--brand-700);font-weight:600;margin-bottom:14px;
}
.param-card h3{font-size:18px;margin-bottom:10px}
.param-card p{font-size:15px;color:var(--text-2)}
.param-vals{display:flex;gap:22px;margin-top:16px;flex-wrap:wrap}
.param-vals div{font-size:13px;color:var(--muted)}
.param-vals strong{display:block;font-size:22px;color:var(--brand-900);font-variant-numeric:tabular-nums}

/* 指标横条 */
.metric-band{
  background:var(--grad-brand);border-radius:var(--r-xl);padding:36px;color:#fff;
  position:relative;overflow:hidden;
}
.metric-band::after{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.06;
  background-image:repeating-linear-gradient(45deg,#fff 0 1px,transparent 1px 12px);
}
.metric-band-grid{position:relative;z-index:2;display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.metric-cell{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.16);border-radius:var(--r-md);padding:20px}
.metric-cell .num{font-size:30px;color:#fff;display:block;line-height:1.2}
.metric-cell .label{font-size:12px;color:rgba(255,255,255,.72);letter-spacing:.04em;margin-top:6px;display:block}

/* 相关入口 */
.read-card{
  display:grid;grid-template-columns:180px 1fr;gap:20px;align-items:center;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:20px;box-shadow:var(--sh-1);
  transition:border-color .22s var(--ease),box-shadow .22s var(--ease),transform .22s var(--ease);
}
.read-card:hover{border-color:var(--brand-300);box-shadow:var(--sh-2);transform:translateY(-3px)}
.read-card img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--r-md)}
.read-card h3{font-size:18px;margin-bottom:8px}
.read-card p{font-size:14px;color:var(--muted)}
.card-meta{display:flex;gap:12px;align-items:center;font-size:13px;color:var(--muted);margin-bottom:8px;flex-wrap:wrap}
.pill{
  font-size:12px;padding:4px 12px;border-radius:var(--r-pill);
  background:var(--brand-050);color:var(--brand-700);font-weight:600;
}
.pill-amber{background:var(--accent-soft);color:var(--accent-ink)}
.arrow-link{display:inline-flex;align-items:center;gap:8px;font-weight:600;color:var(--brand-700);font-size:14px;margin-top:12px}
.arrow-link i{transition:transform .22s var(--ease)}
.arrow-link:hover i{transform:translateX(4px)}

/* CTA */
.cta-band{
  background:var(--grad-brand);border-radius:var(--r-xl);color:#fff;
  padding:48px 44px;display:flex;align-items:center;justify-content:space-between;gap:28px;
  position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;right:-80px;top:-80px;width:280px;height:280px;border-radius:50%;
  border:1px solid rgba(255,255,255,.14);
}
.cta-band h2{color:#fff;font-size:clamp(22px,2.4vw,30px);margin-bottom:12px}
.cta-band p{color:rgba(255,255,255,.82);font-size:15px;max-width:620px}
.btn-main{
  display:inline-flex;align-items:center;gap:10px;
  height:52px;padding:0 28px;border-radius:var(--r-pill);
  background:var(--grad-brand);color:#fff;font-weight:600;
  transition:transform .22s var(--ease),filter .22s var(--ease),box-shadow .22s var(--ease);
  box-shadow:0 18px 34px -20px rgba(8,42,43,.9);
  flex:0 0 auto;
}
.btn-main:hover{transform:translateY(-2px);filter:brightness(1.06)}
.btn-main:active{transform:translateY(0)}
.btn-ghost-light{
  display:inline-flex;align-items:center;gap:10px;
  height:52px;padding:0 28px;border-radius:var(--r-pill);
  border:1.5px solid rgba(255,255,255,.6);color:#fff;font-weight:600;
  background:transparent;
  transition:background .22s var(--ease),transform .22s var(--ease);
}
.btn-ghost-light:hover{background:rgba(255,255,255,.12);transform:translateY(-2px)}
.btn-ghost{
  display:inline-flex;align-items:center;gap:10px;
  height:52px;padding:0 28px;border-radius:var(--r-pill);
  border:1.5px solid var(--brand-700);color:var(--brand-700);font-weight:600;
  background:transparent;
  transition:background .22s var(--ease),transform .22s var(--ease);
}
.btn-ghost:hover{background:var(--brand-050);transform:translateY(-2px)}

/* 页脚 */
.site-footer{background:var(--brand-900);color:rgba(255,255,255,.78);margin-top:88px;padding-top:64px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px}
.footer-brand{display:flex;align-items:center;gap:11px;margin-bottom:16px}
.footer-brand strong{color:#fff;font-family:var(--font-title);font-size:18px}
.site-footer h4{color:#fff;font-size:15px;margin-bottom:16px;font-weight:600}
.site-footer p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.72)}
.footer-list{display:grid;gap:10px}
.footer-list a{font-size:14px;color:rgba(255,255,255,.72)}
.footer-list a:hover{color:var(--brand-300)}
.qr-box{
  margin-top:14px;width:120px;height:120px;border-radius:var(--r-md);
  border:1px dashed rgba(255,255,255,.3);
  display:grid;place-items:center;text-align:center;
  font-size:12px;color:rgba(255,255,255,.6);line-height:1.6;
}
.footer-bottom{
  margin-top:48px;border-top:1px solid rgba(255,255,255,.12);
  padding:20px 0 26px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.58);
}

/* 响应式 */
@media (max-width:1199.98px){
  .header-cta{padding:0 20px;font-size:14px}
  .stat-grid{grid-template-columns:repeat(2,1fr)}
  .metric-band-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:991.98px){
  .header-inner{flex-wrap:wrap}
  .brand{order:1}
  .nav-toggle{order:2;display:flex;margin-left:auto}
  .header-cta{order:3;display:none}
  .search-pill{order:4;flex:1 1 100%;max-width:none;margin:8px 0 0}
  .main-nav{display:none;border-top:1px solid var(--line)}
  .main-nav.is-open{display:block}
  .nav-inner{flex-direction:column;align-items:stretch;gap:4px;padding:12px 0}
  .nav-link{padding:13px 14px;font-size:16px;border-radius:var(--r-md)}
  .nav-link::after{display:none}
  .nav-link.is-active{background:var(--brand-050)}
  .nav-note{margin:10px 14px 4px;font-size:13px}
  .side-sticky{position:static}
  .cat-hero-inner{padding:36px 0}
  .cta-band{flex-direction:column;align-items:flex-start;padding:36px 28px}
  .read-card{grid-template-columns:1fr}
  .read-card img{aspect-ratio:16/9}
}
@media (max-width:767.98px){
  .section{padding:56px 0}
  .section-tight{padding:44px 0}
  .param-grid{grid-template-columns:1fr}
  .stat-card{padding:22px;border-radius:var(--r-lg)}
  .stat-grid{grid-template-columns:repeat(2,1fr);gap:16px}
  .metric-band{padding:26px 22px}
  .metric-band-grid{grid-template-columns:repeat(2,1fr)}
  .btn-main,.btn-ghost,.btn-ghost-light{width:100%;justify-content:center}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .cat-hero{border-radius:0 0 var(--r-lg) var(--r-lg)}
}
@media (max-width:519.98px){
  .brand-text{font-size:16px}
  .stat-grid{grid-template-columns:1fr}
  .metric-band-grid{grid-template-columns:1fr}
  .cat-hero h1{font-size:28px}
}

/* roulang page: category3 */
:root{
  --brand-900:#082A2B;
  --brand-700:#0E4A46;
  --brand-500:#12726B;
  --brand-300:#4FA79B;
  --brand-050:#E6F1EF;
  --grad-brand:linear-gradient(115deg,#082A2B 0%,#0E4A46 45%,#12726B 100%);
  --grad-accent:linear-gradient(100deg,#C98A32,#E0A24A 60%,#F0C176);
  --bg:#F6F4F0;
  --surface:#FFFFFF;
  --surface-2:#FBF9F6;
  --line:#E3DED6;
  --line-strong:#CFC7BB;
  --text:#10201F;
  --text-2:#3C4A48;
  --muted:#6B7774;
  --ok:#2F7D63;
  --accent:#E0A24A;
  --danger:#C4553B;
  --r-xl:28px;
  --r-lg:20px;
  --r-md:14px;
  --r-sm:10px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(8,42,43,.04),0 12px 32px -14px rgba(8,42,43,.18);
  --sh-2:0 24px 56px -24px rgba(8,42,43,.28);
  --ease:cubic-bezier(.2,.7,.2,1);
  --font-serif:'Noto Serif SC','Source Han Serif SC','Songti SC','SimSun',serif;
  --font-sans:-apple-system,'PingFang SC','Hiragino Sans GB','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;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--brand-700);text-decoration:none;transition:color .22s var(--ease);}
a:hover{color:var(--brand-500);}
h1,h2,h3,h4{font-family:var(--font-serif);color:var(--text);margin:0;font-weight:700;line-height:1.3;}
p{margin:0 0 20px;}
ul{margin:0;padding:0;list-style:none;}
button,input,textarea,select{font-family:inherit;font-size:inherit;}
:focus-visible{outline:3px solid rgba(224,162,74,.5);outline-offset:2px;}
.wrap{width:100%;max-width:1240px;margin:0 auto;padding:0 24px;}
@media (min-width:1400px){.wrap{max-width:1320px;}}

/* ---------- 顶部信息条 ---------- */
.topbar{background:var(--brand-900);color:rgba(255,255,255,.84);font-size:13px;line-height:1.6;}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:40px;flex-wrap:wrap;}
.topbar-inner span{white-space:nowrap;}
.topbar-right{display:flex;gap:20px;}
.topbar a{color:rgba(255,255,255,.84);}
.topbar a:hover{color:#fff;}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(255,255,255,.94);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .22s var(--ease);
}
.site-header.is-scrolled{box-shadow:var(--sh-1);}
.header-inner{display:flex;align-items:center;gap:22px;padding-top:18px;padding-bottom:18px;transition:padding .22s var(--ease);}
.site-header.is-scrolled .header-inner{padding-top:10px;padding-bottom:10px;}
.logo{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.logo-mark{
  width:38px;height:38px;border-radius:12px;background:var(--grad-brand);
  display:grid;place-items:center;flex:0 0 auto;box-shadow:0 8px 18px -10px rgba(18,114,107,.8);
}
.logo-mark svg{width:22px;height:22px;}
.logo-text{font-family:var(--font-serif);font-weight:700;font-size:19px;color:var(--brand-900);letter-spacing:.4px;white-space:nowrap;}
.search-pill{
  flex:1 1 auto;max-width:640px;margin:0 auto;height:56px;
  display:flex;align-items:center;gap:10px;padding:0 6px 0 18px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-pill);
  box-shadow:0 1px 2px rgba(8,42,43,.04),0 14px 30px -18px rgba(8,42,43,.35);
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.search-pill:focus-within{border-color:var(--brand-500);box-shadow:0 0 0 4px rgba(18,114,107,.14);}
.search-ico{width:20px;height:20px;flex:0 0 auto;stroke:var(--brand-500);}
.search-pill input{
  flex:1 1 auto;min-width:0;height:100%;border:0;outline:none;background:transparent;
  font-size:15px;color:var(--text);
}
.search-pill input::placeholder{color:var(--muted);}
.search-btn{
  width:44px;height:44px;flex:0 0 auto;border:0;border-radius:50%;
  background:var(--grad-brand);color:#fff;display:grid;place-items:center;cursor:pointer;
  transition:filter .2s var(--ease),transform .2s var(--ease);
}
.search-btn:hover{filter:brightness(1.08);}
.search-btn:active{transform:scale(.96);}
.search-btn svg{width:18px;height:18px;stroke:#fff;}
.header-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto;}

/* ---------- 按钮 ---------- */
.btn-brand,.btn-ghost,.btn-amber{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:52px;padding:0 28px;border-radius:var(--r-pill);
  font-weight:600;font-size:16px;text-decoration:none;cursor:pointer;
  transition:transform .22s var(--ease),filter .22s var(--ease),background .22s var(--ease),color .22s var(--ease);
}
.btn-brand{border:0;background:var(--grad-brand);color:#fff;box-shadow:0 14px 28px -16px rgba(18,114,107,.9);}
.btn-brand:hover{filter:brightness(1.08);transform:translateY(-2px);color:#fff;}
.btn-brand:active{transform:translateY(0);}
.btn-ghost{border:1.5px solid var(--brand-700);background:#fff;color:var(--brand-700);}
.btn-ghost:hover{background:var(--brand-050);border-color:var(--brand-700);color:var(--brand-700);transform:translateY(-2px);}
.btn-amber{border:0;background:var(--grad-accent);color:#3A2408;}
.btn-amber:hover{filter:brightness(1.05);transform:translateY(-2px);color:#3A2408;}
.btn-sm{height:44px;padding:0 20px;font-size:15px;}

/* ---------- 主导航 ---------- */
.main-nav{background:#fff;border-bottom:1px solid var(--line);}
.nav-inner{display:flex;align-items:center;gap:28px;flex-wrap:wrap;padding-top:14px;padding-bottom:14px;}
.nav-link{position:relative;font-size:15px;font-weight:600;color:var(--text-2);padding-bottom:4px;}
.nav-link::after{
  content:"";position:absolute;left:0;bottom:0;height:3px;width:0;
  background:var(--accent);border-radius:2px;transition:width .22s var(--ease);
}
.nav-link:hover{color:var(--brand-700);}
.nav-link:hover::after{width:100%;}
.nav-link.is-active{color:var(--brand-700);}
.nav-link.is-active::after{width:100%;}
.nav-note{margin-left:auto;font-size:13px;color:var(--muted);font-weight:400;}

/* ---------- 移动面板 ---------- */
.menu-toggle{
  display:none;width:44px;height:44px;border-radius:var(--r-md);border:1px solid var(--line);
  background:#fff;flex-direction:column;justify-content:center;align-items:center;gap:5px;cursor:pointer;
}
.menu-toggle span{width:20px;height:2px;background:var(--brand-700);border-radius:2px;transition:transform .22s var(--ease),opacity .2s var(--ease);}
.menu-toggle.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.menu-toggle.is-open span:nth-child(2){opacity:0;}
.menu-toggle.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}
.mobile-panel{display:none;background:#fff;border-top:1px solid var(--line);padding:18px 0 26px;}
.mobile-panel.is-open{display:block;}
.mobile-panel .search-pill{display:flex;max-width:none;margin:0 0 18px;}
.m-link{display:block;padding:15px 4px;font-size:17px;font-weight:600;color:var(--text);border-bottom:1px solid var(--line);}
.m-link:hover{color:var(--brand-700);}
.m-link.is-active{color:var(--brand-700);box-shadow:inset 3px 0 0 var(--brand-500);padding-left:14px;}
.mobile-panel .btn-brand{width:100%;margin-top:20px;}

/* ---------- 分类英雄区 ---------- */
.cat-hero{
  position:relative;
  background-image:linear-gradient(115deg,rgba(8,42,43,.94) 0%,rgba(14,74,70,.88) 46%,rgba(18,114,107,.78) 100%),url('/assets/images/backpic/back-2.png');
  background-size:cover;
  background-position:center;
  color:#fff;
  overflow:hidden;
}
.cat-hero::after{
  content:"";position:absolute;right:-120px;top:-140px;width:420px;height:420px;border-radius:50%;
  border:1px solid rgba(255,255,255,.08);pointer-events:none;
}
.cat-hero-inner{
  position:relative;z-index:2;min-height:262px;
  display:flex;flex-direction:column;justify-content:space-between;gap:20px;
  padding-top:30px;padding-bottom:34px;
}
.crumbs ol{display:flex;align-items:center;gap:10px;justify-content:flex-end;flex-wrap:wrap;font-size:13px;}
.crumbs li{color:rgba(255,255,255,.7);}
.crumbs li+li::before{content:"/";margin-right:10px;color:rgba(255,255,255,.4);}
.crumbs a{color:rgba(255,255,255,.86);}
.crumbs a:hover{color:#fff;}
.crumbs li[aria-current="page"]{color:#fff;font-weight:600;}
.cat-hero-bottom{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;flex-wrap:wrap;}
.cat-hero h1{
  color:#fff;font-size:clamp(30px,3.6vw,46px);line-height:1.2;letter-spacing:.5px;
  position:relative;padding-bottom:16px;
}
.cat-hero h1::after{content:"";position:absolute;left:0;bottom:0;width:56px;height:3px;background:var(--grad-accent);border-radius:2px;}
.cat-hero-note{max-width:420px;margin:0;color:rgba(255,255,255,.86);font-size:15px;line-height:1.8;}

/* ---------- 通用板块 ---------- */
.section{padding:88px 0;}
.section-alt{background:var(--surface-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{max-width:760px;margin-bottom:38px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;font-size:12px;font-weight:700;
  letter-spacing:2px;color:var(--brand-500);margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--accent);border-radius:2px;}
.section-head h2{font-size:clamp(24px,2.6vw,36px);line-height:1.35;}
.section-sub{margin:14px 0 0;color:var(--text-2);font-size:16px;line-height:1.85;}

/* ---------- 能力卡 ---------- */
.cap-card{
  height:100%;display:flex;flex-direction:column;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh-1);overflow:hidden;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.cap-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:var(--brand-300);}
.cap-card img{width:100%;height:216px;object-fit:cover;}
.cap-body{padding:24px 26px 28px;display:flex;flex-direction:column;gap:12px;flex:1 1 auto;}
.cap-body h3{font-size:20px;line-height:1.45;}
.cap-body p{margin:0;color:var(--text-2);font-size:15px;line-height:1.85;}
.cap-narrow .cap-body{padding:26px 24px 28px;}
.cap-narrow h3{font-size:19px;}
.tag{display:inline-block;font-size:12px;font-weight:600;padding:4px 12px;border-radius:var(--r-pill);background:var(--brand-050);color:var(--brand-700);align-self:flex-start;}
.tag-amber{background:#FBF1E2;color:#8A5A18;}
.arrow-link{display:inline-flex;align-items:center;gap:6px;font-weight:600;font-size:15px;color:var(--brand-700);margin-top:auto;}
.arrow-link span{transition:transform .2s var(--ease);}
.arrow-link:hover span{transform:translateX(4px);}

/* ---------- 数据徽章 ---------- */
.stat-strip{margin-top:36px;}
.stat{
  position:relative;height:100%;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-md);padding:22px 20px;box-shadow:var(--sh-1);overflow:hidden;
}
.stat::before{content:"";position:absolute;left:0;right:0;top:0;height:3px;background:var(--grad-accent);}
.stat strong{
  font-size:clamp(30px,3vw,38px);font-weight:700;color:var(--brand-700);
  font-variant-numeric:tabular-nums;line-height:1.1;
}
.stat .stat-unit{font-size:14px;color:var(--muted);margin-left:4px;}
.stat .stat-label{display:block;font-size:13px;color:var(--muted);margin-top:8px;line-height:1.6;}

/* ---------- 对照大卡 ---------- */
.compare-card{height:100%;border-radius:var(--r-xl);padding:34px 32px;border:1px solid var(--line);}
.compare-brand{background:var(--grad-brand);color:#fff;border-color:transparent;box-shadow:var(--sh-2);position:relative;overflow:hidden;}
.compare-brand::after{content:"";position:absolute;right:-70px;bottom:-90px;width:260px;height:260px;border-radius:50%;border:1px solid rgba(255,255,255,.14);}
.compare-brand h3,.compare-brand .compare-kicker{color:#fff;}
.compare-plain{background:var(--surface);box-shadow:var(--sh-1);}
.compare-kicker{font-size:12px;font-weight:700;letter-spacing:2px;color:var(--brand-500);display:block;margin-bottom:12px;}
.compare-plain .compare-kicker{color:var(--muted);}
.compare-card h3{font-size:22px;margin-bottom:18px;line-height:1.45;}
.compare-card ul li{
  position:relative;padding-left:20px;margin-bottom:14px;font-size:15px;line-height:1.85;
}
.compare-brand ul li{color:rgba(255,255,255,.9);}
.compare-plain ul li{color:var(--text-2);}
.compare-card ul li::before{
  content:"";position:absolute;left:0;top:.72em;width:8px;height:8px;border-radius:2px;background:var(--accent);
}
.compare-plain ul li::before{background:var(--line-strong);}

/* ---------- 图文区 ---------- */
.figure-img{width:100%;border-radius:var(--r-xl);box-shadow:var(--sh-2);object-fit:cover;aspect-ratio:16/11;}
.text-block h2{font-size:clamp(23px,2.4vw,32px);margin-bottom:16px;}
.text-block p{color:var(--text-2);}
.check-list{margin-top:10px;}
.check-list li{
  position:relative;padding-left:30px;margin-bottom:14px;font-size:15px;line-height:1.85;color:var(--text-2);
}
.check-list li::before{
  content:"";position:absolute;left:0;top:.62em;width:16px;height:16px;border-radius:5px;
  background:var(--brand-050);box-shadow:inset 0 0 0 1.5px var(--brand-300);
}
.check-list li strong{color:var(--text);font-weight:600;}

/* ---------- 文章入口 ---------- */
.entry-card{
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-xl);
  padding:32px 34px;box-shadow:var(--sh-1);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.entry-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:var(--brand-300);}
.entry-card h3{font-size:21px;margin:14px 0 10px;}
.entry-card p{margin:0;color:var(--text-2);font-size:15px;}
.entry-main{max-width:640px;}

/* ---------- FAQ ---------- */
.faq-acc{--bs-accordion-btn-focus-box-shadow:none;--bs-accordion-border-width:0;}
.faq-acc .accordion-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md)!important;
  margin-bottom:12px;overflow:hidden;box-shadow:var(--sh-1);
  transition:border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.faq-acc .accordion-item:hover{border-color:var(--brand-300);}
.faq-acc .accordion-button{
  background:#fff;color:var(--text);font-family:var(--font-sans);
  font-size:17px;font-weight:600;line-height:1.6;padding:18px 20px;border:0;box-shadow:none;
}
.faq-acc .accordion-button:not(.collapsed){
  color:var(--brand-700);background:var(--surface-2);box-shadow:inset 3px 0 0 var(--brand-500);
}
.faq-acc .accordion-button::after{
  content:"+";display:flex;align-items:center;justify-content:center;
  width:26px;height:26px;flex-shrink:0;margin-left:auto;
  background-image:none;font-size:20px;font-weight:400;line-height:1;
  color:var(--brand-500);transition:transform .22s var(--ease),color .22s var(--ease);
}
.faq-acc .accordion-button:not(.collapsed)::after{transform:rotate(45deg);color:var(--accent);}
.faq-acc .accordion-body{padding:2px 22px 22px;font-size:15px;line-height:1.9;color:var(--text-2);}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--r-xl);
  background:var(--grad-brand);color:#fff;padding:52px 44px;
  display:flex;align-items:center;justify-content:space-between;gap:36px;flex-wrap:wrap;
  box-shadow:var(--sh-2);
}
.cta-band::after{
  content:"";position:absolute;right:-80px;bottom:-110px;width:320px;height:320px;border-radius:50%;
  border:1px solid rgba(255,255,255,.14);
}
.cta-band h2{color:#fff;font-size:clamp(23px,2.4vw,32px);margin-bottom:14px;line-height:1.4;position:relative;z-index:2;}
.cta-band p{margin:0;color:rgba(255,255,255,.86);font-size:15px;position:relative;z-index:2;}
.cta-band .cta-action{position:relative;z-index:2;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--brand-900);color:rgba(255,255,255,.82);padding:72px 0 0;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px;padding-bottom:48px;}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:18px;}
.brand-mark{
  width:40px;height:40px;border-radius:12px;background:rgba(255,255,255,.08);
  display:grid;place-items:center;flex:0 0 auto;
}
.brand-mark svg{width:22px;height:22px;}
.footer-brand strong{font-family:var(--font-serif);font-size:19px;color:#fff;letter-spacing:.4px;}
.site-footer p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.74);margin-bottom:14px;}
.site-footer h4{color:#fff;font-size:16px;margin-bottom:18px;}
.footer-list li{margin-bottom:12px;}
.footer-list a{color:rgba(255,255,255,.74);font-size:14px;}
.footer-list a:hover{color:var(--brand-300);}
.qr-box{
  margin-top:16px;width:132px;height:132px;border-radius:var(--r-md);
  border:1px dashed rgba(255,255,255,.28);display:grid;place-items:center;
  text-align:center;font-size:13px;line-height:1.6;color:rgba(255,255,255,.66);padding:12px;
}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding:22px 0 30px;font-size:13px;color:rgba(255,255,255,.62);
}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .footer-grid{grid-template-columns:1.3fr 1fr 1fr;gap:28px;}
}
@media (max-width:991px){
  .section{padding:64px 0;}
  .header-inner{flex-wrap:wrap;gap:14px;}
  .search-pill{order:3;flex:1 1 100%;max-width:none;margin:6px 0 0;height:52px;}
  .nav-inner{gap:20px;}
  .nav-note{margin-left:0;flex:1 1 100%;}
  .cat-hero-inner{min-height:236px;}
  .cat-hero-bottom{flex-direction:column;align-items:flex-start;gap:16px;}
  .cat-hero-note{max-width:none;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .cta-band{padding:40px 32px;}
  .cap-card img{height:200px;}
}
@media (max-width:767px){
  .wrap{padding:0 18px;}
  .topbar-inner{justify-content:center;text-align:center;padding:6px 0;}
  .topbar-right{display:none;}
  .search-pill{display:none;}
  .menu-toggle{display:inline-flex;}
  .header-actions .btn-brand{display:none;}
  .header-inner{padding-top:14px;padding-bottom:14px;}
  .section{padding:52px 0;}
  .section-head{margin-bottom:26px;}
  .stat-strip{margin-top:26px;}
  .cap-card,.compare-card{border-radius:18px;}
  .compare-card{padding:26px 22px;}
  .entry-card{padding:26px 22px;border-radius:22px;}
  .cta-band{padding:34px 24px;border-radius:22px;}
  .btn-brand,.btn-ghost{width:100%;}
  .cta-band .cta-action{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  .footer-bottom{justify-content:flex-start;text-align:left;font-size:12px;}
  .figure-img{aspect-ratio:16/10;}
}
@media (max-width:520px){
  .logo-text{font-size:16px;}
  .logo-mark{width:34px;height:34px;}
  .cat-hero h1{font-size:27px;}
  .stat strong{font-size:28px;}
  .faq-acc .accordion-button{font-size:16px;padding:16px 16px;}
  .faq-acc .accordion-body{padding:2px 16px 18px;}
}

/* roulang page: category2 */
:root{
  --brand-900:#082A2B;
  --brand-700:#0E4A46;
  --brand-500:#12726B;
  --brand-300:#4FA79B;
  --brand-050:#E6F1EF;
  --grad-brand:linear-gradient(115deg,#082A2B 0%,#0E4A46 45%,#12726B 100%);
  --grad-accent:linear-gradient(100deg,#C98A32,#E0A24A 60%,#F0C176);
  --bg:#F6F4F0;
  --surface:#FFFFFF;
  --surface-2:#FBF9F6;
  --line:#E3DED6;
  --line-strong:#CFC7BB;
  --text:#10201F;
  --text-2:#3C4A48;
  --muted:#6B7774;
  --ok:#2F7D63;
  --accent:#E0A24A;
  --danger:#C4553B;
  --r-xl:28px;
  --r-lg:20px;
  --r-md:14px;
  --r-sm:10px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(8,42,43,.04),0 12px 32px -14px rgba(8,42,43,.18);
  --sh-2:0 24px 56px -24px rgba(8,42,43,.28);
  --tr:220ms cubic-bezier(.2,.7,.2,1);
  --font-serif:'Noto Serif SC','Source Han Serif SC','Songti SC','SimSun',serif;
  --font-sans:-apple-system,'PingFang SC','Hiragino Sans GB','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;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{font-family:var(--font-serif);color:var(--text);margin:0;font-weight:700;letter-spacing:.3px;}
p{margin:0 0 18px;}
p:last-child{margin-bottom:0;}
a{color:inherit;text-decoration:none;transition:color var(--tr);}
img{max-width:100%;display:block;}
button,input,textarea,select{font:inherit;color:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
table{border-collapse:collapse;width:100%;}
::selection{background:var(--brand-050);color:var(--brand-900);}
:focus-visible{outline:3px solid rgba(224,162,74,.5);outline-offset:2px;}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--brand-900);color:#fff;padding:10px 18px;border-radius:var(--r-sm);z-index:2000;}
.skip-link:focus{left:16px;top:10px;}

/* ---------- 容器 ---------- */
.wrap{width:100%;max-width:1240px;margin:0 auto;padding:0 20px;}
.wrap > .row{--bs-gutter-x:1.75rem;}
@media (min-width:1400px){.wrap{max-width:1320px;}}

/* ---------- 顶部信息条 ---------- */
.topbar{background:var(--brand-900);color:rgba(255,255,255,.8);font-size:13px;line-height:1.6;}
.topbar-inner{display:flex;justify-content:space-between;align-items:center;gap:16px;min-height:38px;flex-wrap:wrap;}
.topbar-inner strong{color:#fff;font-weight:600;}
.topbar .topbar-right{color:rgba(255,255,255,.62);}

/* ---------- 页头 ---------- */
.site-header{position:sticky;top:0;z-index:1000;background:#fff;box-shadow:0 1px 0 rgba(8,42,43,.06);transition:box-shadow var(--tr),background var(--tr);}
.site-header.is-scrolled{box-shadow:var(--sh-1);background:rgba(255,255,255,.92);-webkit-backdrop-filter:saturate(180%) blur(12px);backdrop-filter:saturate(180%) blur(12px);}
.header-inner{display:flex;align-items:center;gap:22px;padding-top:14px;padding-bottom:14px;}
.brand{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.brand-mark{width:46px;height:46px;border-radius:15px;background:var(--grad-brand);display:grid;place-items:center;box-shadow:var(--sh-1);flex:0 0 auto;}
.brand-mark svg{width:26px;height:26px;}
.brand-text{display:flex;flex-direction:column;line-height:1.3;}
.brand-text strong{font-family:var(--font-serif);font-size:19px;font-weight:700;color:var(--brand-900);letter-spacing:.4px;}
.brand-text em{font-style:normal;font-size:12px;color:var(--muted);letter-spacing:.6px;}
.search-pill{
  flex:1 1 auto;max-width:640px;height:56px;display:flex;align-items:center;gap:10px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-pill);
  padding:0 8px 0 20px;box-shadow:var(--sh-1);transition:border-color var(--tr),box-shadow var(--tr);
}
.search-pill i.fa-magnifying-glass{color:var(--brand-500);font-size:15px;flex:0 0 auto;}
.search-pill input{flex:1 1 auto;min-width:0;border:0;outline:0;background:transparent;font-size:15px;color:var(--text);padding:0;}
.search-pill input::placeholder{color:var(--muted);}
.search-pill:focus-within{border-color:var(--brand-500);box-shadow:0 0 0 4px rgba(18,114,107,.14),var(--sh-1);}
.search-pill button{flex:0 0 auto;width:42px;height:42px;border-radius:50%;border:0;background:var(--grad-brand);color:#fff;display:grid;place-items:center;cursor:pointer;transition:filter var(--tr),transform var(--tr);}
.search-pill button:hover{filter:brightness(1.08);}
.search-pill button:active{transform:scale(.96);}
.header-cta{flex:0 0 auto;}
.nav-toggle{display:none;width:46px;height:46px;border-radius:var(--r-md);border:1px solid var(--line);background:var(--surface-2);color:var(--brand-700);cursor:pointer;}

/* ---------- 主导航 ---------- */
.main-nav{border-top:1px solid var(--line);background:rgba(255,255,255,.7);}
.nav-inner{display:flex;align-items:center;gap:24px;padding-top:8px;padding-bottom:8px;flex-wrap:wrap;}
.nav-link{position:relative;font-size:15px;font-weight:600;color:var(--text-2);padding:9px 1px;white-space:nowrap;}
.nav-link::after{content:"";position:absolute;left:0;bottom:0;height:3px;width:0;background:var(--accent);border-radius:2px;transition:width var(--tr);}
.nav-link:hover{color:var(--brand-700);}
.nav-link:hover::after{width:100%;}
.nav-link.is-active{color:var(--brand-700);}
.nav-link.is-active::after{width:100%;}
.nav-note{margin-left:auto;font-size:13px;color:var(--muted);white-space:nowrap;}

/* ---------- 按钮 ---------- */
.btn-pill{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:52px;padding:0 28px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;
  transition:transform var(--tr),filter var(--tr),background var(--tr),color var(--tr),border-color var(--tr);
}
.btn-pill.primary{background:var(--grad-brand);color:#fff;box-shadow:var(--sh-1);}
.btn-pill.primary:hover{filter:brightness(1.06);transform:translateY(-2px);box-shadow:var(--sh-2);}
.btn-pill.primary:active{transform:translateY(0);}
.btn-pill.ghost{background:#fff;border:1.5px solid var(--brand-700);color:var(--brand-700);}
.btn-pill.ghost:hover{background:var(--brand-050);transform:translateY(-2px);}
.btn-pill.accent{background:var(--grad-accent);color:#3A2408;font-weight:700;}
.btn-pill.accent:hover{filter:brightness(1.05);transform:translateY(-2px);}
.btn-pill.sm{height:44px;padding:0 20px;font-size:14px;}

/* ---------- 窄版 Hero ---------- */
.page-hero{position:relative;background:var(--grad-brand);color:#fff;overflow:hidden;border-radius:0 0 var(--r-xl) var(--r-xl);}
.page-hero .hero-bg{position:absolute;inset:0;background-image:url('/assets/images/backpic/back-2.png');background-size:cover;background-position:center;opacity:.2;}
.page-hero .hero-rings{position:absolute;right:-120px;top:-140px;width:520px;height:520px;border:1px solid rgba(255,255,255,.14);border-radius:50%;}
.page-hero .hero-rings::after{content:"";position:absolute;inset:70px;border:1px solid rgba(255,255,255,.1);border-radius:50%;}
.page-hero-inner{position:relative;z-index:2;padding:34px 20px 40px;min-height:250px;display:flex;flex-direction:column;justify-content:space-between;gap:26px;}
.crumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.75);}
.crumb a:hover{color:#fff;}
.crumb .sep{opacity:.55;}
.crumb [aria-current]{color:#fff;font-weight:600;}
.hero-eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12px;letter-spacing:1.6px;color:rgba(255,255,255,.8);border:1px solid rgba(255,255,255,.28);border-radius:var(--r-pill);padding:5px 14px;margin-bottom:14px;}
.page-hero h1{font-size:clamp(28px,3.6vw,44px);line-height:1.25;color:#fff;letter-spacing:1px;}
.hero-bar{width:64px;height:3px;background:var(--grad-accent);border-radius:2px;margin:16px 0;}
.hero-lead{max-width:660px;font-size:15px;line-height:1.9;color:rgba(255,255,255,.86);margin:0;}

/* ---------- 板块 ---------- */
.section{padding:88px 0;}
.section.tight{padding-top:64px;}
.section-head{max-width:760px;margin-bottom:36px;}
.section-head h2{font-size:clamp(24px,2.6vw,36px);line-height:1.3;}
.section-head p{margin-top:14px;color:var(--text-2);font-size:16px;}
.eyebrow{display:inline-block;font-size:12px;letter-spacing:1.4px;font-weight:700;color:var(--brand-700);background:var(--brand-050);border-radius:var(--r-pill);padding:5px 14px;margin-bottom:14px;}

/* ---------- 数据徽章 ---------- */
.stat-card{position:relative;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);padding:24px 22px 22px;box-shadow:var(--sh-1);height:100%;overflow:hidden;}
.stat-card::before{content:"";position:absolute;left:0;right:0;top:0;height:3px;background:var(--grad-accent);}
.stat-num{font-family:var(--font-sans);font-variant-numeric:tabular-nums;font-weight:700;font-size:clamp(30px,3vw,42px);line-height:1.1;color:var(--brand-700);display:flex;align-items:baseline;gap:6px;}
.stat-num small{font-size:13px;font-weight:600;color:var(--muted);}
.stat-label{margin-top:8px;font-size:12px;color:var(--muted);letter-spacing:.4px;}
.band{background:var(--grad-brand);border-radius:var(--r-xl);padding:44px 36px;color:#fff;position:relative;overflow:hidden;}
.band::after{content:"";position:absolute;left:-90px;bottom:-140px;width:360px;height:360px;border:1px solid rgba(255,255,255,.12);border-radius:50%;}
.band h2{color:#fff;font-size:clamp(22px,2.4vw,32px);}
.band p{color:rgba(255,255,255,.82);max-width:820px;margin-top:14px;}
.band .stat-card{background:rgba(255,255,255,.96);border-color:transparent;}
.band .stat-card::before{background:var(--grad-brand);}

/* ---------- 通用卡片 ---------- */
.card-b{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);padding:28px;box-shadow:var(--sh-1);height:100%;transition:transform var(--tr),box-shadow var(--tr),border-color var(--tr);}
.card-b:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:var(--brand-300);}
.card-b h3{font-size:20px;line-height:1.45;margin-bottom:10px;}
.card-b p{color:var(--text-2);font-size:15px;}
.card-icon{width:46px;height:46px;border-radius:var(--r-md);background:var(--brand-050);color:var(--brand-700);display:grid;place-items:center;font-size:18px;margin-bottom:16px;}
.card-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px;}
.badge-soft{display:inline-flex;align-items:center;font-size:12px;font-weight:600;padding:4px 12px;border-radius:var(--r-pill);background:var(--brand-050);color:var(--brand-700);}
.badge-amber{display:inline-flex;align-items:center;font-size:12px;font-weight:600;padding:4px 12px;border-radius:var(--r-pill);background:#FBF1E2;color:#8A5A18;}
.img-cover{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--r-lg);}
.card-b.big{padding:36px;}
.arrow-link{display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:600;color:var(--brand-700);margin-top:18px;}
.arrow-link i{transition:transform var(--tr);}
.arrow-link:hover i{transform:translateX(4px);}
.dot-list{margin-top:16px;}
.dot-list li{position:relative;padding-left:20px;font-size:15px;color:var(--text-2);line-height:1.8;margin-bottom:8px;}
.dot-list li::before{content:"";position:absolute;left:0;top:11px;width:7px;height:7px;border-radius:50%;background:var(--brand-300);}

/* ---------- 时间轴 ---------- */
.timeline{position:relative;margin-top:8px;}
.tl-item{position:relative;display:grid;grid-template-columns:64px 1fr;gap:24px;padding-bottom:26px;}
.tl-item::before{content:"";position:absolute;left:31px;top:70px;bottom:0;width:2px;background:linear-gradient(180deg,var(--brand-300),rgba(79,167,155,.08));}
.tl-item:last-child{padding-bottom:0;}
.tl-item:last-child::before{display:none;}
.tl-dot{width:64px;height:64px;border-radius:20px;background:var(--brand-050);border:1px solid var(--brand-300);color:var(--brand-700);display:grid;place-items:center;font-weight:700;font-size:20px;font-variant-numeric:tabular-nums;transition:background var(--tr),color var(--tr);}
.tl-item:hover .tl-dot{background:var(--grad-brand);color:#fff;border-color:transparent;}
.tl-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);padding:26px 28px;box-shadow:var(--sh-1);transition:transform var(--tr),box-shadow var(--tr),border-color var(--tr);}
.tl-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:var(--brand-300);}
.tl-card h3{font-size:20px;margin-bottom:10px;}
.tl-card p{color:var(--text-2);font-size:15px;}
.tl-meta{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px;}

/* ---------- 对照表 ---------- */
.table-shell{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh-1);overflow:hidden;}
.table-scroll{overflow-x:auto;}
.compare-table{min-width:720px;}
.compare-table thead th{background:var(--brand-900);color:#fff;font-family:var(--font-serif);font-size:15px;font-weight:700;text-align:left;padding:18px 22px;letter-spacing:.4px;}
.compare-table thead th:nth-child(2){background:var(--brand-700);}
.compare-table tbody td{padding:16px 22px;font-size:14.5px;color:var(--text-2);border-bottom:1px solid var(--line);vertical-align:top;line-height:1.8;}
.compare-table tbody tr:nth-child(even){background:var(--surface-2);}
.compare-table tbody tr:last-child td{border-bottom:0;}
.compare-table tbody td:first-child{font-weight:600;color:var(--text);width:150px;}
.compare-table tbody td:nth-child(2){color:var(--brand-700);font-weight:600;}
.table-note{margin-top:14px;font-size:13px;color:var(--muted);}

/* ---------- 场景图卡 ---------- */
.scene-card{position:relative;border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line);background:var(--surface);box-shadow:var(--sh-1);transition:transform var(--tr),box-shadow var(--tr);height:100%;}
.scene-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);}
.scene-media{position:relative;overflow:hidden;}
.scene-media img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform 420ms cubic-bezier(.2,.7,.2,1);}
.scene-card:hover .scene-media img{transform:scale(1.03);}
.scene-body{padding:24px 26px 26px;}
.scene-body h3{font-size:20px;margin:12px 0 10px;}
.scene-body p{font-size:15px;color:var(--text-2);}

/* ---------- 资讯入口卡 ---------- */
.entry-card{display:grid;grid-template-columns:minmax(0,1fr) 340px;gap:0;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-1);transition:transform var(--tr),box-shadow var(--tr);}
.entry-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);}
.entry-body{padding:32px 34px;}
.entry-body h3{font-size:20px;line-height:1.5;margin:14px 0 10px;}
.entry-body p{font-size:15px;color:var(--text-2);}
.entry-meta{display:flex;flex-wrap:wrap;align-items:center;gap:14px;margin-top:18px;font-size:13px;color:var(--muted);font-variant-numeric:tabular-nums;}
.entry-media{position:relative;overflow:hidden;min-height:240px;}
.entry-media img{width:100%;height:100%;object-fit:cover;transition:transform 420ms cubic-bezier(.2,.7,.2,1);}
.entry-card:hover .entry-media img{transform:scale(1.03);}

/* ---------- FAQ ---------- */
.faq-list{max-width:920px;}
.faq-item{background:var(--surface);border:1px solid var(--line);border-left:3px solid transparent;border-radius:var(--r-md);box-shadow:var(--sh-1);margin-bottom:12px;overflow:hidden;transition:border-color var(--tr),box-shadow var(--tr);}
.faq-item:hover{box-shadow:var(--sh-2);}
.faq-item.is-open{border-left-color:var(--brand-500);}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;text-align:left;background:transparent;border:0;cursor:pointer;padding:20px 24px;font-size:17px;font-weight:600;color:var(--text);}
.faq-icon{flex:0 0 auto;font-size:20px;line-height:1;color:var(--brand-500);transition:transform var(--tr),color var(--tr);}
.faq-item.is-open .faq-icon{transform:rotate(45deg);color:var(--accent);}
.faq-a{max-height:0;overflow:hidden;transition:max-height 280ms cubic-bezier(.2,.7,.2,1);}
.faq-a p{padding:0 24px 22px;font-size:15px;line-height:1.85;color:var(--text-2);}

/* ---------- CTA 通栏 ---------- */
.cta-band{position:relative;background:var(--grad-brand);border-radius:var(--r-xl);padding:52px 44px;color:#fff;overflow:hidden;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;}
.cta-band::before{content:"";position:absolute;right:-120px;top:-120px;width:380px;height:380px;border:1px solid rgba(255,255,255,.14);border-radius:50%;}
.cta-band h2{color:#fff;font-size:clamp(22px,2.4vw,32px);line-height:1.35;position:relative;z-index:2;}
.cta-band p{color:rgba(255,255,255,.82);margin-top:12px;font-size:15px;position:relative;z-index:2;}
.cta-actions{position:relative;z-index:2;display:flex;flex-direction:column;align-items:flex-start;gap:12px;}
.cta-tel{font-size:14px;color:rgba(255,255,255,.78);font-variant-numeric:tabular-nums;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--brand-900);color:rgba(255,255,255,.78);margin-top:88px;padding-top:64px;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px;padding-bottom:48px;}
.site-footer h4{color:#fff;font-size:15px;margin-bottom:16px;letter-spacing:.6px;}
.site-footer p{font-size:14px;line-height:1.85;margin-bottom:12px;color:rgba(255,255,255,.7);}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px;}
.footer-brand strong{color:#fff;font-family:var(--font-serif);font-size:18px;letter-spacing:.4px;}
.footer-list li{margin-bottom:10px;}
.footer-list a{font-size:14px;color:rgba(255,255,255,.72);}
.footer-list a:hover{color:var(--brand-300);}
.qr-box{margin-top:16px;width:132px;height:132px;border:1px dashed rgba(255,255,255,.32);border-radius:var(--r-md);display:grid;place-items:center;text-align:center;font-size:13px;line-height:1.6;color:rgba(255,255,255,.62);}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding:20px 0;display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;font-size:13px;color:rgba(255,255,255,.6);}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .section{padding:76px 0;}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .entry-card{grid-template-columns:minmax(0,1fr) 300px;}
}
@media (max-width:991px){
  .header-inner{flex-wrap:wrap;gap:14px;}
  .brand-text em{display:none;}
  .search-pill{order:3;max-width:none;width:100%;height:52px;}
  .nav-toggle{display:grid;place-items:center;margin-left:auto;}
  .main-nav{max-height:0;overflow:hidden;transition:max-height 300ms cubic-bezier(.2,.7,.2,1);background:#fff;}
  .main-nav.is-open{max-height:560px;border-top:1px solid var(--line);}
  .nav-inner{flex-direction:column;align-items:stretch;gap:0;padding-top:6px;padding-bottom:16px;}
  .nav-link{padding:14px 0;font-size:17px;border-bottom:1px solid var(--line);}
  .nav-link::after{display:none;}
  .nav-note{margin:14px 0 0;white-space:normal;font-size:13px;}
  .entry-card{grid-template-columns:1fr;}
  .entry-media{min-height:220px;order:-1;}
  .cta-band{padding:40px 28px;}
}
@media (max-width:767px){
  .section{padding:56px 0;}
  .section.tight{padding-top:44px;}
  .page-hero-inner{padding:26px 20px 32px;min-height:220px;}
  .tl-item{grid-template-columns:48px 1fr;gap:16px;}
  .tl-dot{width:48px;height:48px;border-radius:16px;font-size:17px;}
  .tl-item::before{left:23px;top:54px;}
  .tl-card{padding:22px 20px;}
  .card-b{padding:22px;}
  .card-b.big{padding:24px;}
  .btn-pill{width:100%;}
  .btn-pill.header-cta{display:none;}
  .cta-actions{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;}
  .site-footer{margin-top:56px;padding-top:48px;}
}
@media (max-width:520px){
  .wrap{padding:0 16px;}
  .topbar-inner{justify-content:flex-start;}
  .topbar .topbar-right{display:none;}
  .brand-text strong{font-size:17px;}
  .stat-num{font-size:28px;}
  .compare-table thead th,.compare-table tbody td{padding:14px 16px;}
}