/* roulang page: index */
:root{
  --ink-900:#061A15;
  --brand-900:#07231C;
  --brand-700:#0B2E24;
  --brand-600:#12513D;
  --brand-500:#14684F;
  --brand-400:#2E8B6B;
  --bg:#F5F7F5;
  --surface:#FFFFFF;
  --surface-2:#F7FAF8;
  --line:#E3E8E4;
  --text:#1B2420;
  --text-2:#5C6A63;
  --text-3:#8A948F;
  --accent-500:#FF6B2C;
  --signal:#B8F03C;
  --warn:#E0562F;
  --r-card:16px;
  --r-panel:20px;
  --r-btn:12px;
  --r-badge:6px;
  --r-input:10px;
  --shadow-sm:0 1px 2px rgba(6,26,21,.06);
  --shadow-md:0 8px 24px -8px rgba(6,26,21,.14);
  --shadow-lg:0 24px 60px -24px rgba(6,26,21,.28);
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,sans-serif;
  --font-num:"DIN Alternate","Barlow Semi Condensed",ui-monospace,SFMono-Regular,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;font-family:var(--font-cn);background:var(--bg);color:var(--text);font-size:16px;line-height:1.8;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
img{max-width:100%;display:block;border-radius:14px;height:auto}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4,p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:3px solid rgba(255,107,44,.45);outline-offset:2px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
.num{font-family:var(--font-num);font-variant-numeric:tabular-nums;letter-spacing:.01em}
.dot{width:4px;height:4px;border-radius:50%;background:var(--text-3);display:inline-block;vertical-align:middle;margin:0 8px}

/* 按钮 */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:42px;padding:0 22px;border-radius:var(--r-btn);font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;transition:transform .22s ease-out,background .22s ease-out,box-shadow .22s ease-out,border-color .22s ease-out,color .22s ease-out;white-space:nowrap}
.btn:hover{transform:translateY(-1px)}
.btn:active{transform:translateY(1px)}
.btn:disabled,.btn[disabled]{opacity:.4;cursor:not-allowed;transform:none}
.btn-primary{background:var(--accent-500);color:#0B2E24;box-shadow:0 6px 18px -8px rgba(255,107,44,.7)}
.btn-primary:hover{background:#ff7d45;box-shadow:var(--shadow-md)}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.45)}
.btn-ghost:hover{border-color:#fff;background:rgba(255,255,255,.08)}
.btn-outline{background:var(--surface);color:var(--text);border-color:var(--line)}
.btn-outline:hover{border-color:var(--brand-400);color:var(--brand-500)}
.btn-pill{border-radius:999px}
.btn-lg{height:48px;padding:0 28px;font-size:16px}
.btn-sm{height:36px;padding:0 16px;font-size:14px}
.btn-block{width:100%}
.link-arrow{display:inline-flex;align-items:center;gap:6px;color:var(--accent-500);font-size:13px;font-weight:600;transition:color .2s ease-out}
.link-arrow span{display:inline-block;transition:transform .22s ease-out}
.link-arrow:hover span{transform:translateX(3px)}

/* 徽章 */
.badge{display:inline-flex;align-items:center;padding:4px 10px;border-radius:var(--r-badge);font-size:12px;font-weight:600;line-height:1.4}
.badge-cat{background:#E7F3EE;color:#14684F}
.badge-up{background:#E7F6EF;color:#14684F}
.badge-down{background:#FDECE6;color:#B33A18}
.badge-neutral{background:var(--surface-2);color:var(--text-2)}

/* 头部导航 */
.site-header{position:sticky;top:0;z-index:100;background:var(--brand-700);transition:background .2s ease-out,box-shadow .2s ease-out,border-color .2s ease-out;border-bottom:1px solid rgba(255,255,255,0)}
.site-header.is-scrolled{background:var(--brand-900);border-bottom-color:rgba(255,255,255,.10);box-shadow:var(--shadow-md)}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px}
.brand{display:flex;align-items:center;gap:12px;color:#fff;flex-shrink:0}
.brand-mark{width:38px;height:38px;border-radius:10px;background:var(--brand-600);display:grid;align-content:center;justify-content:center;gap:4px;transition:background .22s ease-out}
.brand-mark i{display:block;height:2px;border-radius:2px;background:var(--signal)}
.brand-mark i:nth-child(1){width:18px}
.brand-mark i:nth-child(2){width:12px}
.brand-mark i:nth-child(3){width:16px}
.brand:hover .brand-mark{background:var(--accent-500)}
.brand-text{display:flex;align-items:baseline;gap:5px;line-height:1}
.brand-text b{font-size:19px;font-weight:700;letter-spacing:.01em}
.brand-text em{font-style:normal;font-size:11.5px;font-weight:500;letter-spacing:.08em;color:rgba(255,255,255,.72)}
.nav-main{display:flex;align-items:center;gap:28px;margin-left:auto}
.nav-link{position:relative;font-size:15px;font-weight:500;color:rgba(255,255,255,.86);padding:6px 0;transition:color .2s ease-out}
.nav-link::after{content:"";position:absolute;left:0;bottom:0;height:2px;width:0;background:var(--accent-500);transition:width .18s ease-out}
.nav-link:hover{color:#fff}
.nav-link:hover::after{width:60%}
.nav-link.is-active{color:#fff;font-weight:600}
.nav-link.is-active::after{width:60%}
.nav-actions{display:flex;align-items:center;gap:12px;flex-shrink:0}
.nav-toggle{display:none;width:42px;height:42px;border-radius:10px;background:transparent;border:1px solid rgba(255,255,255,.28);position:relative;cursor:pointer}
.nav-toggle i{position:absolute;left:11px;width:20px;height:2px;background:#fff;border-radius:2px;transition:transform .22s ease-out,opacity .22s ease-out}
.nav-toggle i:nth-child(1){top:14px}
.nav-toggle i:nth-child(2){top:20px}
.nav-toggle i:nth-child(3){top:26px}

/* 移动抽屉 */
.drawer-mask{position:fixed;inset:0;background:rgba(6,26,21,.55);opacity:0;visibility:hidden;transition:opacity .24s ease-out,visibility .24s ease-out;z-index:110}
.drawer-mask.is-open{opacity:1;visibility:visible}
.nav-drawer{position:fixed;top:0;right:0;height:100%;width:86vw;max-width:360px;background:var(--brand-900);z-index:120;transform:translateX(100%);transition:transform .28s ease-out;display:flex;flex-direction:column;padding:20px 0 24px}
.nav-drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding:0 20px 16px;border-bottom:1px solid rgba(255,255,255,.10);color:#fff}
.drawer-head b{font-size:17px;font-weight:700}
.drawer-close{width:36px;height:36px;border-radius:50%;border:1px solid rgba(255,255,255,.28);background:transparent;color:#fff;font-size:18px;line-height:1;cursor:pointer}
.drawer-nav{flex:1;overflow-y:auto;padding:8px 0}
.drawer-nav a{display:flex;align-items:center;height:48px;padding:0 20px;color:rgba(255,255,255,.86);font-size:15px;border-bottom:1px solid rgba(255,255,255,.08);position:relative}
.drawer-nav a.is-active{color:#fff;font-weight:600}
.drawer-nav a.is-active::before{content:"";position:absolute;left:0;top:10px;bottom:10px;width:3px;background:var(--accent-500);border-radius:0 3px 3px 0}
.drawer-foot{padding:16px 20px 0;border-top:1px solid rgba(255,255,255,.10)}

/* Hero */
.hero{position:relative;background:var(--brand-700);color:#fff;overflow:hidden;padding:72px 0 132px}
.hero-bg{position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.06) 1px,transparent 1px);background-size:64px 64px;pointer-events:none}
.hero-bg::after{content:"";position:absolute;inset:0;background:repeating-linear-gradient(115deg,rgba(184,240,60,.04) 0 120px,transparent 120px 280px);pointer-events:none}
.hero-inner{position:relative;display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.hero-tag{display:inline-flex;align-items:center;gap:8px;font-size:13px;letter-spacing:.06em;color:var(--signal);border:1px solid rgba(184,240,60,.35);border-radius:999px;padding:5px 14px;margin-bottom:22px}
.hero h1{font-size:clamp(32px,4.6vw,56px);font-weight:800;line-height:1.15;letter-spacing:-.02em;color:#fff}
.hero-sub{margin-top:20px;font-size:17px;line-height:1.75;color:rgba(255,255,255,.78);max-width:560px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.hero-facts{display:flex;flex-wrap:wrap;gap:0;margin-top:28px;font-size:13px;color:rgba(255,255,255,.7)}
.hero-facts li{padding:0 16px;border-left:1px solid rgba(255,255,255,.22)}
.hero-facts li:first-child{padding-left:0;border-left:0}
.hero-media{position:relative;border-radius:14px;overflow:hidden;box-shadow:var(--shadow-lg)}
.hero-media img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:14px}
.hero-media::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(7,35,28,.72) 0%,rgba(7,35,28,0) 62%)}
.hero-media-bar{position:absolute;left:16px;right:16px;bottom:16px;background:rgba(6,26,21,.82);border:1px solid rgba(255,255,255,.10);border-radius:12px;padding:14px 16px;display:flex;gap:20px;z-index:2}
.hero-media-bar div{flex:1;min-width:0}
.hero-media-bar b{display:block;font-family:var(--font-num);font-size:20px;color:var(--signal);font-variant-numeric:tabular-nums;line-height:1.2}
.hero-media-bar span{font-size:12px;color:rgba(255,255,255,.66)}

/* KPI 指标条 */
.kpi-bar{position:relative;z-index:5;margin-top:-92px}
.kpi-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.kpi-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-panel);padding:20px 22px 16px;box-shadow:var(--shadow-md);transition:transform .22s ease-out,box-shadow .22s ease-out,border-color .22s ease-out}
.kpi-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:var(--brand-400)}
.kpi-top{display:flex;align-items:baseline;gap:6px}
.kpi-value{font-family:var(--font-num);font-size:32px;font-weight:700;color:var(--brand-500);font-variant-numeric:tabular-nums;line-height:1.1}
.kpi-unit{font-size:13px;color:var(--text-2)}
.kpi-label{margin-top:6px;font-size:12.5px;color:var(--text-3);letter-spacing:.02em}
.kpi-foot{display:flex;align-items:flex-end;justify-content:space-between;gap:12px;margin-top:14px}
.kpi-bars{display:flex;align-items:flex-end;gap:4px;height:28px}
.kpi-bars i{display:block;width:5px;border-radius:2px;background:linear-gradient(180deg,var(--signal),var(--brand-400))}

/* 板块基础 */
.section{padding:96px 0}
.section-tight{padding:72px 0}
.section-dark{background:var(--brand-900);color:#fff;position:relative;overflow:hidden}
.section-dark .sec-title,.section-dark h2{color:#fff}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px}
.sec-title{font-size:clamp(24px,3vw,36px);font-weight:700;line-height:1.25;letter-spacing:-.01em}
.sec-desc{margin-top:14px;font-size:15.5px;color:var(--text-2);max-width:760px}
.section-dark .sec-desc{color:rgba(255,255,255,.72)}
.sec-stamp{font-size:12.5px;color:var(--text-3);white-space:nowrap}
.section-dark .sec-stamp{color:rgba(255,255,255,.55)}

/* 指标看板 */
.metric-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.metric-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);padding:26px;box-shadow:var(--shadow-sm);transition:transform .22s ease-out,box-shadow .22s ease-out,border-color .22s ease-out;display:flex;flex-direction:column}
.metric-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:var(--brand-400)}
.metric-icon{width:42px;height:42px;border-radius:12px;background:var(--surface-2);display:grid;place-items:center;color:var(--brand-400);margin-bottom:18px}
.metric-icon svg{width:22px;height:22px;stroke:currentColor;fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.metric-name{font-size:15px;font-weight:600;color:var(--text)}
.metric-value{margin-top:8px;font-family:var(--font-num);font-size:40px;font-weight:700;color:var(--brand-500);line-height:1.05;font-variant-numeric:tabular-nums;letter-spacing:-.01em}
.metric-value small{font-size:15px;color:var(--text-2);font-weight:500;margin-left:6px;font-family:var(--font-cn)}
.metric-note{margin-top:12px;font-size:13px;color:var(--text-2);line-height:1.7}
.metric-foot{margin-top:auto;padding-top:18px}

/* Bento 服务矩阵 */
.matrix{display:grid;grid-template-columns:repeat(12,1fr);gap:24px}
.matrix-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--shadow-sm);transition:transform .22s ease-out,box-shadow .22s ease-out,border-color .22s ease-out;overflow:hidden}
.matrix-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:var(--brand-400)}
.matrix-lg{grid-column:span 8;display:grid;grid-template-columns:1fr 1fr;min-height:280px}
.matrix-lg .matrix-copy{padding:32px;display:flex;flex-direction:column;justify-content:center}
.matrix-lg .matrix-img{position:relative;overflow:hidden}
.matrix-lg .matrix-img img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .4s ease-out}
.matrix-card:hover .matrix-img img{transform:scale(1.04)}
.matrix-v{grid-column:span 4;background:var(--brand-600);border-color:var(--brand-600);color:#fff;padding:32px;display:flex;flex-direction:column;min-height:280px}
.matrix-v h3{color:#fff}
.matrix-v p{color:rgba(255,255,255,.78)}
.matrix-v .btn{align-self:flex-start;margin-top:auto}
.matrix-sm{grid-column:span 4;padding:28px}
.matrix-icon{width:40px;height:40px;border-radius:10px;background:var(--surface-2);display:grid;place-items:center;color:var(--brand-500);margin-bottom:18px}
.matrix-icon svg{width:20px;height:20px;stroke:currentColor;fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.matrix-card h3{font-size:20px;font-weight:600;line-height:1.4}
.matrix-card p{margin-top:12px;font-size:14.5px;color:var(--text-2);line-height:1.75}
.matrix-sm .link-arrow{margin-top:18px}

/* 结果对比 */
.compare-wrap{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--shadow-sm)}
.compare-head{display:grid;grid-template-columns:1fr 1fr;background:var(--surface-2);border-bottom:1px solid var(--line)}
.compare-head div{padding:16px 28px;font-size:13px;font-weight:600;letter-spacing:.04em;color:var(--text-2)}
.compare-head div:last-child{color:var(--brand-500);border-left:1px solid var(--line)}
.compare-row{display:grid;grid-template-columns:1fr 1fr;border-bottom:1px solid var(--line)}
.compare-row:last-child{border-bottom:0}
.compare-row:hover{background:var(--surface-2)}
.compare-cell{padding:22px 28px;font-size:15px;line-height:1.75;display:flex;gap:12px;align-items:flex-start}
.compare-cell.old{color:var(--text-2)}
.compare-cell.old::before{content:"—";color:var(--warn);font-weight:700;flex-shrink:0}
.compare-cell.new{color:var(--text);background:#F1F7F3;border-left:1px solid var(--line)}
.compare-cell.new::before{content:"✓";color:var(--brand-400);font-weight:700;flex-shrink:0}

/* 资讯列表 */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.news-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--shadow-sm);transition:transform .22s ease-out,box-shadow .22s ease-out,border-color .22s ease-out;display:flex;flex-direction:column}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:var(--brand-400)}
.news-thumb{position:relative;display:block;overflow:hidden;aspect-ratio:16/9}
.news-thumb img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .4s ease-out}
.news-card:hover .news-thumb img{transform:scale(1.04)}
.news-thumb .badge{position:absolute;left:14px;top:14px;background:#E7F3EE;color:#14684F}
.news-body{padding:22px 24px 24px;display:flex;flex-direction:column;flex:1}
.news-title{font-size:17px;font-weight:600;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-title a:hover{color:var(--brand-500)}
.news-desc{margin-top:12px;font-size:14px;line-height:1.7;color:var(--text-2);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.news-meta{margin-top:auto;padding-top:18px;display:flex;align-items:center;gap:0;font-size:12.5px;color:var(--text-3);flex-wrap:wrap}
.news-meta .link-arrow{margin-left:auto}
.news-empty{background:var(--surface);border:1px dashed var(--line);border-radius:var(--r-card);padding:56px 24px;text-align:center}
.news-empty .empty-icon{display:inline-grid;place-items:center;width:48px;height:48px;border-radius:14px;background:var(--surface-2);color:var(--brand-400);font-size:20px;margin-bottom:14px}
.news-empty p{color:var(--text-2);font-size:15px;margin-bottom:18px}

/* FAQ */
.faq-wrap{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--shadow-sm)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item:last-child{border-bottom:0}
.faq-q{width:100%;display:flex;align-items:center;gap:16px;padding:16px 24px;min-height:56px;background:transparent;border:0;text-align:left;cursor:pointer;font-size:16px;font-weight:600;color:var(--text);transition:background .2s ease-out}
.faq-q:hover{background:var(--surface-2)}
.faq-idx{flex-shrink:0;width:32px;height:32px;border-radius:var(--r-badge);background:var(--surface-2);color:var(--brand-500);display:grid;place-items:center;font-size:13px;font-weight:700;font-family:var(--font-num);transition:background .22s ease-out,color .22s ease-out}
.faq-item.is-open .faq-idx{background:var(--accent-500);color:#fff}
.faq-arrow{margin-left:auto;flex-shrink:0;color:var(--text-3);transition:transform .22s ease-out}
.faq-item.is-open .faq-arrow{transform:rotate(180deg)}
.faq-panel{max-height:0;overflow:hidden;transition:max-height .22s ease-out}
.faq-item.is-open .faq-panel{max-height:320px}
.faq-a{padding:0 24px 22px 72px;font-size:15px;line-height:1.8;color:var(--text-2)}

/* CTA 表单 */
.cta{background:var(--brand-900);color:#fff;position:relative;overflow:hidden}
.cta-bg{position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.06) 1px,transparent 1px);background-size:64px 64px;pointer-events:none}
.cta-inner{position:relative;display:grid;grid-template-columns:5fr 7fr;gap:56px;align-items:start}
.cta h2{font-size:clamp(24px,3vw,34px);font-weight:700;line-height:1.28;color:#fff}
.cta-list{margin-top:28px;display:grid;gap:14px}
.cta-list li{display:flex;gap:12px;align-items:flex-start;font-size:15px;color:rgba(255,255,255,.86)}
.cta-list li::before{content:"✓";flex-shrink:0;width:22px;height:22px;border-radius:6px;background:rgba(184,240,60,.16);color:var(--signal);display:grid;place-items:center;font-size:12px;font-weight:700;margin-top:2px}
.cta-note{margin-top:24px;font-size:13px;color:rgba(255,255,255,.58);line-height:1.7}
.form-card{background:var(--surface);border-radius:var(--r-panel);padding:32px;box-shadow:var(--shadow-lg);color:var(--text)}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.field{display:flex;flex-direction:column;gap:8px;margin-bottom:18px}
.field label{font-size:13px;font-weight:600;color:var(--text)}
.field input,.field select,.field textarea{height:46px;padding:0 14px;border:1px solid var(--line);border-radius:var(--r-input);background:var(--surface);font-size:15px;color:var(--text);transition:border-color .2s ease-out,box-shadow .2s ease-out,background .2s ease-out;width:100%}
.field textarea{height:auto;min-height:112px;padding:12px 14px;resize:vertical;line-height:1.7}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--brand-500);box-shadow:0 0 0 3px rgba(20,104,79,.14)}
.field input.is-error,.field select.is-error,.field textarea.is-error{border-color:var(--warn);box-shadow:0 0 0 3px rgba(224,86,47,.12)}
.field .err{font-size:12.5px;color:var(--warn);display:none}
.field.has-error .err{display:block}
.form-ok{display:none;margin-top:16px;padding:14px 16px;border-radius:var(--r-input);background:#E7F6EF;color:#14684F;font-size:14px;line-height:1.7}
.form-ok.is-show{display:block}

/* 页脚 */
.site-footer{background:var(--ink-900);color:rgba(255,255,255,.72);padding:72px 0 0}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px}
.foot-brand{display:flex;align-items:center;gap:12px;color:#fff;margin-bottom:18px}
.foot-brand .brand-mark{background:var(--brand-600)}
.foot-brand b{font-size:18px;font-weight:700}
.foot-brand em{font-style:normal;font-size:11.5px;letter-spacing:.08em;color:rgba(255,255,255,.6);margin-left:5px}
.foot-about{font-size:14px;line-height:1.85;max-width:320px}
.foot-col h4{font-size:15px;font-weight:600;color:#fff;margin-bottom:18px}
.foot-links{display:grid;gap:12px}
.foot-links a{font-size:14px;color:rgba(255,255,255,.72);transition:color .2s ease-out,transform .2s ease-out;display:inline-block}
.foot-links a:hover{color:var(--accent-500);transform:translateX(-2px)}
.foot-contact{font-size:14px;line-height:1.9}
.foot-contact strong{color:#fff;font-weight:600;display:block;margin-bottom:6px}
.foot-actions{display:flex;align-items:center;gap:12px;margin-top:20px}
.icon-btn{width:36px;height:36px;border-radius:50%;border:1px solid rgba(255,255,255,.28);background:transparent;display:grid;place-items:center;color:#fff;transition:border-color .2s ease-out,background .2s ease-out,transform .2s ease-out}
.icon-btn:hover{border-color:var(--accent-500);background:rgba(255,107,44,.12);transform:translateY(-1px)}
.icon-btn svg{width:16px;height:16px;stroke:currentColor;fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.foot-bottom{margin-top:56px;padding:24px 0 28px;border-top:1px solid rgba(255,255,255,.10);display:flex;align-items:center;justify-content:space-between;gap:16px;font-size:13px;color:rgba(255,255,255,.5);flex-wrap:wrap}

/* 骨架与空态 */
.skeleton{background:#EDF1EE;border-radius:8px;animation:breathe 1.4s ease-in-out infinite}
@keyframes breathe{0%,100%{opacity:1}50%{opacity:.55}}

/* 响应式 */
@media (max-width:1279px){
  .container{padding:0 24px}
  .hero-inner{gap:40px}
}
@media (max-width:1023px){
  .nav-main{display:none}
  .nav-actions .btn-ghost{display:none}
  .nav-toggle{display:block}
  .hero{padding:56px 0 120px}
  .hero-inner{grid-template-columns:1fr;gap:36px}
  .hero-media{order:2}
  .hero-facts li{padding:0 12px}
  .section{padding:72px 0}
  .kpi-grid{grid-template-columns:repeat(2,1fr)}
  .metric-grid{grid-template-columns:repeat(2,1fr)}
  .matrix-lg{grid-column:span 12}
  .matrix-v{grid-column:span 12;min-height:auto}
  .matrix-sm{grid-column:span 6}
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .cta-inner{grid-template-columns:1fr;gap:36px}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  .container{padding:0 20px}
  .nav-wrap{height:60px}
  .brand-text em{display:none}
  .hero{padding:44px 0 108px}
  .hero-sub{font-size:15.5px}
  .hero-actions{gap:12px}
  .hero-actions .btn{flex:1 1 auto}
  .hero-media-bar{gap:12px;padding:12px}
  .hero-media-bar b{font-size:17px}
  .section{padding:56px 0}
  .sec-head{flex-direction:column;align-items:flex-start;gap:14px;margin-bottom:28px}
  .kpi-grid{grid-template-columns:repeat(2,1fr);gap:14px}
  .kpi-card{padding:16px}
  .kpi-value{font-size:26px}
  .metric-grid{grid-template-columns:1fr}
  .metric-value{font-size:34px}
  .matrix-lg{grid-template-columns:1fr}
  .matrix-lg .matrix-img{min-height:180px}
  .matrix-lg .matrix-copy{padding:26px}
  .matrix-sm{grid-column:span 12}
  .compare-head{grid-template-columns:1fr}
  .compare-head div:last-child{border-left:0;border-top:1px solid var(--line)}
  .compare-row{grid-template-columns:1fr}
  .compare-cell{padding:18px 22px}
  .compare-cell.new{border-left:0;border-top:1px solid var(--line)}
  .news-grid{grid-template-columns:1fr}
  .faq-q{padding:14px 18px;font-size:15px}
  .faq-a{padding:0 18px 20px 18px}
  .form-card{padding:22px}
  .form-row{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr;gap:32px}
  .foot-bottom{flex-direction:column;align-items:flex-start;gap:8px}
}
@media (max-width:479px){
  .hero h1{font-size:30px}
  .hero-actions{flex-direction:column;align-items:stretch}
  .hero-facts{flex-direction:column;gap:6px}
  .hero-facts li{padding-left:0;border-left:0}
  .kpi-grid{grid-template-columns:1fr}
  .sec-title{font-size:24px}
  .metric-value{font-size:30px}
  .btn-lg{width:100%}
}

/* roulang page: article */
:root{
  --ink-900:#061A15;
  --brand-900:#07231C;
  --brand-700:#0B2E24;
  --brand-600:#12513D;
  --brand-500:#14684F;
  --brand-400:#2E8B6B;
  --bg:#F5F7F5;
  --surface:#FFFFFF;
  --surface-2:#F7FAF8;
  --line:#E3E8E4;
  --text:#1B2420;
  --text-2:#5C6A63;
  --text-3:#8A948F;
  --accent-500:#FF6B2C;
  --accent-600:#E85B1E;
  --signal:#B8F03C;
  --warn:#E0562F;
  --r-card:16px;
  --r-panel:20px;
  --r-btn:12px;
  --r-input:10px;
  --r-badge:6px;
  --r-img:14px;
  --r-pill:999px;
  --sh-sm:0 1px 2px rgba(6,26,21,.06);
  --sh-md:0 8px 24px -8px rgba(6,26,21,.14);
  --sh-lg:0 24px 60px -24px rgba(6,26,21,.28);
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,sans-serif;
  --font-num:"DIN Alternate","Barlow Semi Condensed",ui-monospace,SFMono-Regular,Menlo,monospace;
  --head-h:72px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--r-img)}
a{color:inherit;text-decoration:none;transition:color .2s ease-out}
h1,h2,h3,h4,p,ul,ol{margin:0}
ul,ol{padding:0;list-style:none}
button{font-family:inherit;cursor:pointer}
input,select,textarea{font-family:inherit;font-size:15px;color:var(--text)}
:focus-visible{outline:3px solid rgba(255,107,44,.45);outline-offset:2px;border-radius:8px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
.num{font-family:var(--font-num);font-variant-numeric:tabular-nums;letter-spacing:.01em}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:42px;padding:0 22px;border:1px solid transparent;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;white-space:nowrap;
  transition:background .2s ease-out,color .2s ease-out,border-color .2s ease-out,transform .2s ease-out,box-shadow .2s ease-out;
}
.btn-sm{height:42px;padding:0 22px;font-size:15px}
.btn-lg{height:48px;padding:0 28px;font-size:16px}
.btn-pill{border-radius:var(--r-pill)}
.btn-primary{background:var(--accent-500);color:#08201A;font-weight:700}
.btn-primary:hover{background:#FF7B44;transform:translateY(-1px);box-shadow:var(--sh-md)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{background:transparent;border-color:rgba(255,255,255,.42);color:#fff}
.btn-ghost:hover{border-color:#fff;background:rgba(255,255,255,.08)}
.btn-outline{background:var(--surface);border-color:var(--line);color:var(--text)}
.btn-outline:hover{border-color:var(--brand-400);color:var(--brand-500)}
.btn:disabled,.btn[disabled]{opacity:.4;cursor:not-allowed;transform:none;box-shadow:none}
.link-arrow{display:inline-flex;align-items:center;gap:6px;color:var(--accent-500);font-size:14px;font-weight:600}
.link-arrow svg{width:12px;height:12px;transition:transform .2s ease-out}
.link-arrow:hover svg{transform:translateX(3px)}

/* ---------- 徽章 ---------- */
.badge{display:inline-flex;align-items:center;padding:4px 10px;border-radius:var(--r-badge);font-size:12px;font-weight:600;line-height:1.4}
.badge-cat{background:#E7F3EE;color:#14684F}
.badge-soft{background:var(--surface-2);color:var(--text-2)}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:100;
  background:transparent;
  transition:background .2s ease-out,box-shadow .2s ease-out,border-color .2s ease-out;
  border-bottom:1px solid transparent;
}
.site-header.is-solid,
.site-header.is-scrolled{
  background:var(--brand-900);
  border-bottom:1px solid rgba(255,255,255,.10);
  box-shadow:var(--sh-md);
}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px}
.brand{display:flex;align-items:center;gap:12px;color:#fff}
.brand-mark{
  width:38px;height:38px;border-radius:11px;background:var(--brand-600);
  display:flex;flex-direction:column;justify-content:center;align-items:center;gap:4px;
  transition:background .2s ease-out;flex:0 0 auto;
}
.brand-mark i{display:block;height:3px;border-radius:2px;background:#EAF6EF}
.brand-mark i:nth-child(1){width:16px}
.brand-mark i:nth-child(2){width:11px;background:var(--signal)}
.brand-mark i:nth-child(3){width:16px}
.brand:hover .brand-mark{background:var(--accent-500)}
.brand-text{display:flex;align-items:baseline;gap:6px;line-height:1}
.brand-text b{font-size:19px;font-weight:700;letter-spacing:-.01em}
.brand-text em{font-style:normal;font-size:11.5px;font-weight:500;letter-spacing:.08em;color:rgba(255,255,255,.72)}
.nav-main{display:flex;align-items:center;gap:28px}
.nav-link{position:relative;color:rgba(255,255,255,.86);font-size:15px;font-weight:500;padding:8px 0;white-space:nowrap}
.nav-link::after{
  content:"";position:absolute;left:0;bottom:0;width:0;height:2px;background:var(--accent-500);
  transition:width .18s ease-out;
}
.nav-link:hover{color:#fff}
.nav-link:hover::after{width:60%}
.nav-link.is-active{color:#fff;font-weight:600}
.nav-link.is-active::after{width:60%}
.nav-actions{display:flex;align-items:center;gap:12px}
.nav-toggle{
  display:none;width:42px;height:42px;border:1px solid rgba(255,255,255,.35);background:transparent;
  border-radius:11px;flex-direction:column;align-items:center;justify-content:center;gap:4px;
}
.nav-toggle i{display:block;width:18px;height:2px;background:#fff;border-radius:2px;transition:transform .2s ease-out,opacity .2s ease-out}

/* ---------- 阅读进度条 ---------- */
.read-progress{
  position:fixed;top:var(--head-h);left:0;right:0;height:3px;z-index:99;
  background:rgba(6,26,21,.06);pointer-events:none;
}
.read-progress i{
  display:block;height:100%;width:0;
  background:linear-gradient(90deg,var(--signal),var(--accent-500));
  transition:width .12s linear;
}

/* ---------- 面包屑 ---------- */
.crumb-bar{background:var(--surface);border-bottom:1px solid var(--line)}
.breadcrumb{display:flex;align-items:center;gap:8px;padding:14px 0;font-size:14px;color:var(--text-2);flex-wrap:wrap}
.breadcrumb a:hover{color:var(--brand-500)}
.breadcrumb .sep{color:var(--text-3)}
.breadcrumb .current{color:var(--text-3);max-width:420px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ---------- 文章头 ---------- */
.article-head{background:var(--surface);padding:44px 0 0}
.article-head .container{max-width:1136px}
.article-title{
  font-size:clamp(26px,3.4vw,40px);font-weight:800;line-height:1.22;letter-spacing:-.02em;
  max-width:860px;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.article-meta{
  display:flex;align-items:center;flex-wrap:wrap;gap:10px;margin-top:18px;padding-bottom:24px;
  font-size:12px;color:var(--text-3);border-bottom:1px solid var(--line);
}
.article-meta .dot{width:3px;height:3px;border-radius:50%;background:var(--text-3);opacity:.7}
.article-meta .k{font-size:12.5px}

/* ---------- 正文布局 ---------- */
.article-main{padding:40px 0 72px}
.article-grid{display:grid;grid-template-columns:minmax(0,760px) 300px;gap:56px;justify-content:center;align-items:start}
.article-body{min-width:0;max-width:760px}
.article-body p{font-size:16.5px;line-height:1.9;margin:0 0 1.5em;color:var(--text)}
.article-body h2{
  position:relative;font-size:clamp(22px,2.4vw,28px);font-weight:700;line-height:1.3;
  margin:44px 0 16px;padding-left:16px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.28em;width:4px;height:20px;border-radius:2px;background:var(--accent-500);
}
.article-body h3{font-size:22px;font-weight:600;line-height:1.4;margin:32px 0 12px}
.article-body h4{font-size:17px;font-weight:600;margin:24px 0 10px}
.article-body ul,.article-body ol{margin:0 0 1.5em;padding-left:22px}
.article-body ul li{position:relative;padding-left:16px;margin-bottom:10px;font-size:16px;line-height:1.85;color:var(--text)}
.article-body ul li::before{
  content:"";position:absolute;left:0;top:.72em;width:6px;height:6px;border-radius:50%;background:var(--brand-400);
}
.article-body ol{list-style:decimal}
.article-body ol li{margin-bottom:10px;font-size:16px;line-height:1.85}
.article-body ol li::marker{color:var(--brand-500);font-weight:600}
.article-body blockquote{
  margin:0 0 1.5em;padding:20px 22px;background:#F1F7F3;border-left:4px solid var(--brand-400);
  border-radius:0 var(--r-card) var(--r-card) 0;font-size:15.5px;line-height:1.85;color:var(--text-2);
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body strong{color:var(--brand-700);font-weight:700}
.article-body a{color:var(--brand-500);text-decoration:underline;text-underline-offset:3px}
.article-body a:hover{color:var(--accent-500)}
.article-body img{margin:24px auto;border-radius:var(--r-img)}
.article-body figure{margin:24px 0}
.article-body figcaption{font-size:12.5px;color:var(--text-3);text-align:center;margin-top:8px}
.article-body .table-scroll{overflow-x:auto;margin:0 0 1.6em;border:1px solid var(--line);border-radius:var(--r-card);background:var(--surface)}
.article-body table{width:100%;border-collapse:collapse;font-size:14.5px;min-width:520px}
.article-body thead th{
  background:var(--surface-2);font-size:13px;font-weight:600;text-align:left;padding:12px 16px;
  border-bottom:1px solid var(--line);color:var(--text-2);white-space:nowrap;
}
.article-body tbody td{padding:12px 16px;border-bottom:1px solid var(--line);line-height:1.7}
.article-body tbody tr:last-child td{border-bottom:none}
.article-body tbody tr:nth-child(even){background:var(--surface-2)}
.article-body hr{border:none;border-top:1px solid var(--line);margin:36px 0}
.article-body code{background:var(--surface-2);border:1px solid var(--line);border-radius:6px;padding:2px 6px;font-size:14px}

/* ---------- 侧栏 ---------- */
.article-side{position:sticky;top:88px;display:flex;flex-direction:column;gap:20px}
.side-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);padding:22px;box-shadow:var(--sh-sm)}
.side-card h3{font-size:15px;font-weight:600;margin-bottom:14px;display:flex;align-items:center;gap:8px}
.side-card h3 span{width:6px;height:6px;border-radius:50%;background:var(--accent-500)}
.side-list li{border-bottom:1px solid var(--line)}
.side-list li:last-child{border-bottom:none}
.side-list a{
  display:block;position:relative;padding:11px 0 11px 12px;font-size:14px;color:var(--text-2);line-height:1.6;
}
.side-list a::before{
  content:"";position:absolute;left:0;top:12px;bottom:12px;width:2px;background:var(--line);
  transition:background .2s ease-out;
}
.side-list a:hover{color:var(--brand-500)}
.side-list a:hover::before{background:var(--accent-500)}
.side-note{font-size:13px;line-height:1.8;color:var(--text-2)}
.side-note strong{display:block;font-size:14px;color:var(--text);margin-bottom:6px}

/* ---------- 文末 ---------- */
.article-foot{padding:0 0 96px}
.article-foot .container{max-width:1136px}
.tag-row{display:flex;align-items:center;flex-wrap:wrap;gap:10px;padding:24px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.tag-row .back-btn{margin-left:auto}
.related-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin:48px 0 24px}
.related-head h2{font-size:clamp(22px,2.6vw,30px);font-weight:700;letter-spacing:-.01em}
.related-head p{font-size:14px;color:var(--text-2);margin-top:6px}
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.news-card{
  display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-sm);
  transition:transform .22s ease-out,box-shadow .22s ease-out,border-color .22s ease-out;
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--sh-lg);border-color:var(--brand-400)}
.news-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;border-radius:0}
.news-thumb img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .5s ease-out}
.news-card:hover .news-thumb img{transform:scale(1.04)}
.news-thumb .badge{position:absolute;left:12px;top:12px}
.news-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1 1 auto}
.news-body h3{
  font-size:17px;font-weight:600;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-body p{
  margin-top:10px;font-size:14px;line-height:1.7;color:var(--text-2);
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{
  display:flex;align-items:center;gap:8px;margin-top:auto;padding-top:16px;font-size:12.5px;color:var(--text-3);
}
.news-meta .dot{width:3px;height:3px;border-radius:50%;background:var(--text-3)}
.news-meta .link-arrow{margin-left:auto}

/* ---------- 空态 ---------- */
.empty-state{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-panel);
  padding:64px 32px;text-align:center;box-shadow:var(--sh-sm);max-width:640px;margin:0 auto;
}
.empty-state svg{width:48px;height:48px;margin:0 auto 18px;stroke:var(--brand-400);fill:none;stroke-width:1.6}
.empty-state h2{font-size:22px;font-weight:700;margin-bottom:10px}
.empty-state p{font-size:15px;color:var(--text-2);margin-bottom:22px}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink-900);color:rgba(255,255,255,.8);padding:72px 0 0;margin-top:0}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.3fr;gap:40px;padding-bottom:48px}
.foot-brand{display:flex;align-items:center;gap:12px;color:#fff;margin-bottom:16px}
.foot-brand b{font-size:18px;font-weight:700}
.foot-brand em{font-style:normal;font-size:11.5px;letter-spacing:.08em;color:rgba(255,255,255,.7);margin-left:6px}
.foot-about{font-size:14px;line-height:1.8;color:rgba(255,255,255,.62);max-width:320px}
.foot-col h4{font-size:15px;font-weight:600;color:#fff;margin-bottom:18px}
.foot-links{display:flex;flex-direction:column;gap:12px}
.foot-links a{font-size:14px;color:rgba(255,255,255,.68);transition:color .2s ease-out,transform .2s ease-out}
.foot-links a:hover{color:var(--accent-500);transform:translateX(2px)}
.foot-contact{font-size:14px;line-height:1.8;color:rgba(255,255,255,.62)}
.foot-contact strong{display:block;color:#fff;font-size:14px;margin-bottom:6px}
.foot-actions{display:flex;gap:12px;margin-top:18px}
.icon-btn{
  width:36px;height:36px;border-radius:50%;border:1px solid rgba(255,255,255,.28);
  display:inline-flex;align-items:center;justify-content:center;transition:border-color .2s ease-out,background .2s ease-out;
}
.icon-btn svg{width:18px;height:18px;fill:none;stroke:#fff;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.icon-btn:hover{border-color:var(--accent-500);background:rgba(255,107,44,.12)}
.foot-bottom{
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  border-top:1px solid rgba(255,255,255,.10);padding:22px 0 28px;font-size:13px;color:rgba(255,255,255,.5);
}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .article-grid{grid-template-columns:minmax(0,1fr) 280px;gap:40px}
}
@media (max-width:1023px){
  .container{padding:0 24px}
  .nav-main{
    position:fixed;top:0;right:0;height:100vh;width:86vw;max-width:360px;z-index:120;
    background:var(--brand-900);flex-direction:column;align-items:stretch;gap:0;
    padding:84px 24px 24px;transform:translateX(100%);transition:transform .26s ease-out;
    box-shadow:var(--sh-lg);overflow-y:auto;
  }
  .nav-main.is-open{transform:translateX(0)}
  .nav-link{
    display:flex;align-items:center;min-height:48px;font-size:16px;color:rgba(255,255,255,.86);
    border-bottom:1px solid rgba(255,255,255,.10);padding-left:12px;
  }
  .nav-link::after{display:none}
  .nav-link.is-active{font-weight:600;color:#fff;box-shadow:inset 3px 0 0 var(--accent-500)}
  .nav-toggle{display:flex}
  .nav-actions .btn-ghost{display:none}
  .nav-backdrop{
    position:fixed;inset:0;background:rgba(6,26,21,.55);z-index:110;opacity:0;visibility:hidden;
    transition:opacity .24s ease-out,visibility .24s ease-out;
  }
  .nav-backdrop.is-open{opacity:1;visibility:visible}
  .article-grid{grid-template-columns:minmax(0,1fr);gap:32px}
  .article-side{position:static;order:2}
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  :root{--head-h:60px}
  .container{padding:0 20px}
  .nav-wrap{height:60px}
  .brand-text em{display:none}
  .article-head{padding:28px 0 0}
  .article-main{padding:28px 0 56px}
  .article-body p{font-size:16px;line-height:1.85}
  .article-body h2{margin-top:34px}
  .related-head{flex-direction:column;align-items:flex-start;margin:36px 0 20px}
  .news-grid{grid-template-columns:1fr}
  .tag-row .back-btn{margin-left:0;width:100%}
  .site-footer{padding-top:48px}
  .foot-grid{grid-template-columns:1fr;gap:28px;padding-bottom:32px}
  .foot-bottom{flex-direction:column;gap:8px}
}
@media (max-width:520px){
  .container{padding:0 16px}
  .article-meta{gap:8px}
  .breadcrumb .current{max-width:200px}
  .btn{width:100%}
  .nav-actions .btn-primary{display:none}
  .nav-toggle{width:40px;height:40px}
}

/* roulang page: category1 */
:root{
  --ink-900:#061A15;
  --brand-900:#07231C;
  --brand-700:#0B2E24;
  --brand-600:#12513D;
  --brand-500:#14684F;
  --brand-400:#2E8B6B;
  --bg:#F5F7F5;
  --surface:#FFFFFF;
  --surface-2:#F7FAF8;
  --line:#E3E8E4;
  --text:#1B2420;
  --text-2:#5C6A63;
  --text-3:#8A948F;
  --accent-500:#FF6B2C;
  --signal:#B8F03C;
  --warn:#E0562F;
  --r-sm:6px;
  --r-md:12px;
  --r-lg:16px;
  --r-xl:20px;
  --r-img:14px;
  --sh-sm:0 1px 2px rgba(6,26,21,.06);
  --sh-md:0 8px 24px -8px rgba(6,26,21,.14);
  --sh-lg:0 24px 60px -24px rgba(6,26,21,.28);
  --font:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,sans-serif;
  --font-num:"DIN Alternate","Barlow Semi Condensed",ui-monospace,SFMono-Regular,Menlo,monospace;
  --ease:220ms ease-out;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
body.menu-open{overflow:hidden}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
button{background:none;border:0;cursor:pointer}
h1,h2,h3,h4{margin:0;line-height:1.25}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
figure{margin:0}
svg{display:block}
:focus-visible{outline:3px solid rgba(255,107,44,.45);outline-offset:2px;border-radius:4px}
.num{font-family:var(--font-num);font-variant-numeric:tabular-nums;letter-spacing:.01em}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:42px;padding:0 22px;border-radius:var(--r-md);
  border:1px solid transparent;font-size:15px;font-weight:600;
  cursor:pointer;white-space:nowrap;
  transition:transform var(--ease),background var(--ease),box-shadow var(--ease),border-color var(--ease),color var(--ease);
}
.btn-primary{background:var(--accent-500);color:#08241C;font-weight:700}
.btn-primary:hover{background:#FF8148;transform:translateY(-1px);box-shadow:var(--sh-md)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{border-color:rgba(255,255,255,.55);color:#fff;background:transparent}
.btn-ghost:hover{background:rgba(255,255,255,.10);border-color:#fff}
.btn-outline{border-color:var(--line);background:var(--surface);color:var(--text)}
.btn-outline:hover{border-color:var(--brand-400);color:var(--brand-500)}
.btn-sm{height:38px;padding:0 18px;font-size:14px}
.btn-lg{height:48px;padding:0 28px}
.btn-pill{border-radius:999px}
.btn[disabled]{opacity:.4;cursor:not-allowed}

.link-arrow{display:inline-flex;align-items:center;gap:6px;color:var(--accent-500);font-size:14px;font-weight:600}
.link-arrow svg{width:14px;height:14px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;transition:transform var(--ease)}
.link-arrow:hover svg{transform:translateX(3px)}

/* ---------- 徽章 ---------- */
.badge{display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:var(--r-sm);font-size:12px;font-weight:600;background:var(--surface-2);color:var(--text-2)}
.badge-cat{background:#E7F3EE;color:#14684F}

/* ---------- 导航 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:100;height:72px;
  background:transparent;border-bottom:1px solid transparent;
  transition:background var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.site-header.is-solid{background:var(--brand-900);border-bottom-color:rgba(255,255,255,.10);box-shadow:var(--sh-md)}
.nav-wrap{height:100%;display:flex;align-items:center;gap:24px}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:36px;height:36px;border-radius:10px;background:var(--brand-600);
  display:inline-flex;flex-direction:column;justify-content:center;gap:4px;padding:0 9px;
  transition:background var(--ease);
}
.brand-mark i{display:block;height:2px;border-radius:2px;background:#fff;width:100%}
.brand-mark i:nth-child(2){width:70%}
.brand-mark i:nth-child(3){width:44%}
.brand:hover .brand-mark{background:var(--accent-500)}
.brand-text{display:flex;align-items:baseline;gap:6px;color:#fff}
.brand-text b{font-size:19px;font-weight:700;letter-spacing:-.01em}
.brand-text em{font-style:normal;font-size:11.5px;font-weight:500;letter-spacing:.08em;color:rgba(255,255,255,.70)}
.nav-main{display:flex;align-items:center;gap:2px;margin-left:auto}
.nav-link{position:relative;padding:10px 14px;font-size:15px;font-weight:500;color:rgba(255,255,255,.86);transition:color var(--ease)}
.nav-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;
  background:var(--accent-500);transform:scaleX(0);transform-origin:left;
  transition:transform 180ms ease-out;
}
.nav-link:hover{color:#fff}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:#fff;font-weight:600}
.nav-link.is-active::after{transform:scaleX(1)}
.nav-actions{display:flex;align-items:center;gap:12px;margin-left:8px}
.nav-toggle{
  display:none;width:40px;height:40px;border-radius:10px;
  flex-direction:column;justify-content:center;align-items:center;gap:5px;
  border:1px solid rgba(255,255,255,.24);transition:background var(--ease),border-color var(--ease);
}
.nav-toggle i{display:block;width:18px;height:2px;border-radius:2px;background:#fff}
.nav-toggle:hover{background:rgba(255,255,255,.10);border-color:rgba(255,255,255,.5)}

.nav-mask{
  position:fixed;inset:0;background:rgba(6,26,21,.55);z-index:120;
  opacity:0;pointer-events:none;transition:opacity 260ms ease-out;
}
.nav-mask.is-open{opacity:1;pointer-events:auto}
.nav-drawer{
  position:fixed;top:0;right:0;height:100%;width:86vw;max-width:360px;z-index:130;
  background:var(--brand-900);display:flex;flex-direction:column;padding:20px;
  transform:translateX(100%);transition:transform 260ms ease-out;
}
.nav-drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px;color:#fff}
.drawer-head b{font-size:16px;font-weight:700}
.drawer-close{width:36px;height:36px;border-radius:50%;border:1px solid rgba(255,255,255,.24);color:#fff;display:grid;place-items:center}
.drawer-close svg{width:16px;height:16px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round}
.drawer-nav{display:flex;flex-direction:column}
.drawer-link{
  position:relative;display:flex;align-items:center;height:48px;padding:0 14px;
  font-size:15px;color:rgba(255,255,255,.86);border-bottom:1px solid rgba(255,255,255,.10);
}
.drawer-link.is-active{color:#fff;font-weight:600}
.drawer-link.is-active::before{content:"";position:absolute;left:0;top:12px;bottom:12px;width:3px;border-radius:2px;background:var(--accent-500)}
.drawer-cta{margin-top:auto;width:100%}

/* ---------- 分类页首屏 ---------- */
.cat-hero{
  position:relative;overflow:hidden;background:var(--brand-700);color:#fff;
  padding:calc(72px + 64px) 0 104px;
}
.cat-hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    linear-gradient(rgba(255,255,255,.06) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.06) 1px,transparent 1px);
  background-size:48px 48px;
}
.cat-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:repeating-linear-gradient(118deg,rgba(184,240,60,.045) 0 3px,transparent 3px 176px);
}
.cat-hero .container{position:relative;z-index:2}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:rgba(255,255,255,.60);margin-bottom:22px}
.crumbs a{transition:color var(--ease)}
.crumbs a:hover{color:var(--accent-500)}
.crumbs .sep{color:rgba(255,255,255,.32)}
.crumbs .cur{color:rgba(255,255,255,.52)}
.cat-hero-grid{display:grid;grid-template-columns:1.35fr .95fr;gap:48px;align-items:center}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;height:28px;padding:0 12px;border-radius:var(--r-sm);
  background:rgba(184,240,60,.14);color:var(--signal);font-size:12.5px;font-weight:600;letter-spacing:.04em;
  margin-bottom:20px;
}
.cat-hero h1{
  font-size:clamp(30px,4vw,48px);font-weight:800;line-height:1.18;letter-spacing:-.02em;color:#fff;
}
.cat-hero .lead{margin-top:20px;max-width:560px;font-size:16.5px;line-height:1.85;color:rgba(255,255,255,.78)}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:32px}
.cat-hero-media img{
  width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-img);
  box-shadow:var(--sh-lg);border:1px solid rgba(255,255,255,.10);
}

/* ---------- 指标条 ---------- */
.kpi-strip{position:relative;z-index:5;margin-top:-56px}
.kpi-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.kpi-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:20px 22px;box-shadow:var(--sh-md);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.kpi-card:hover{transform:translateY(-4px);box-shadow:var(--sh-lg);border-color:var(--brand-400)}
.kpi-top{display:flex;align-items:baseline;gap:6px}
.kpi-num{font-family:var(--font-num);font-variant-numeric:tabular-nums;font-size:32px;font-weight:700;color:var(--brand-500);line-height:1.1}
.kpi-unit{font-size:14px;color:var(--text-2)}
.kpi-label{margin-top:6px;font-size:12.5px;color:var(--text-3)}
.bars{display:flex;align-items:flex-end;gap:3px;height:22px;margin-top:14px}
.bars i{flex:1;border-radius:2px;background:linear-gradient(180deg,var(--signal),var(--brand-400))}

/* ---------- 通用板块 ---------- */
.section{padding:96px 0}
.section-alt{background:var(--surface-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:36px}
.section-head h2{font-size:clamp(24px,3vw,34px);font-weight:700;letter-spacing:-.01em}
.section-sub{margin-top:12px;max-width:660px;font-size:15px;color:var(--text-2)}
.updated{font-size:12.5px;color:var(--text-3)}

/* ---------- 时间轴 ---------- */
.timeline{position:relative;margin-left:10px;border-left:2px solid var(--line);padding-left:0}
.tl-item{position:relative;padding:0 0 26px 32px}
.tl-item:last-child{padding-bottom:0}
.tl-item::before{
  content:"";position:absolute;left:-7px;top:9px;width:10px;height:10px;border-radius:50%;
  background:var(--signal);box-shadow:0 0 0 4px rgba(184,240,60,.20);
}
.tl-date{font-family:var(--font-num);font-variant-numeric:tabular-nums;font-size:13px;letter-spacing:.06em;color:var(--text-3)}
.tl-card{
  margin-top:10px;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:20px 24px;transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.tl-card:hover{transform:translateY(-4px);box-shadow:var(--sh-lg);border-color:var(--brand-400)}
.tl-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-bottom:10px}
.tl-status{font-size:12.5px;color:var(--text-3);font-family:var(--font-num);font-variant-numeric:tabular-nums}
.tl-card h3{font-size:17px;font-weight:600;margin-bottom:8px}
.tl-card p{font-size:14px;line-height:1.75;color:var(--text-2)}
.tl-card .link-arrow{margin-top:12px}

/* ---------- 数据说明卡 ---------- */
.notes-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.note-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);padding:28px;
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.note-card:hover{transform:translateY(-4px);box-shadow:var(--sh-md);border-color:var(--brand-400)}
.note-icon{
  width:44px;height:44px;border-radius:12px;background:#E7F3EE;color:var(--brand-500);
  display:grid;place-items:center;margin-bottom:18px;
}
.note-icon svg{width:22px;height:22px;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.note-card h3{font-size:19px;font-weight:600;margin-bottom:10px}
.note-card > p{font-size:14.5px;line-height:1.8;color:var(--text-2)}
.tick-list{margin-top:16px;display:flex;flex-direction:column;gap:10px}
.tick-list li{position:relative;padding-left:24px;font-size:14px;color:var(--text-2);line-height:1.7}
.tick-list li::before{
  content:"";position:absolute;left:0;top:8px;width:12px;height:7px;
  border-left:2px solid var(--brand-400);border-bottom:2px solid var(--brand-400);
  transform:rotate(-45deg);border-radius:1px;
}

/* ---------- 内容清单 ---------- */
.content-flex{display:grid;grid-template-columns:1.4fr 1fr;gap:32px;align-items:start}
.row-list{display:flex;flex-direction:column;gap:12px}
.row-item{
  position:relative;display:flex;gap:16px;padding:20px 22px;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease),background var(--ease);
}
.row-item::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--accent-500);
  transform:scaleY(0);transform-origin:top;transition:transform var(--ease);
}
.row-item:hover{transform:translateY(-4px);box-shadow:var(--sh-md);border-color:var(--brand-400);background:var(--surface-2)}
.row-item:hover::before{transform:scaleY(1)}
.row-icon{
  flex:0 0 36px;width:36px;height:36px;border-radius:10px;background:#E7F3EE;color:var(--brand-500);
  display:grid;place-items:center;margin-top:2px;
}
.row-icon svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.row-item h3{font-size:16px;font-weight:600;margin-bottom:6px}
.row-item p{font-size:14px;line-height:1.7;color:var(--text-2)}
.content-figure img{
  width:100%;aspect-ratio:3/4;object-fit:cover;border-radius:var(--r-img);border:1px solid var(--line);box-shadow:var(--sh-md);
}
.content-figure figcaption{margin-top:12px;font-size:12.5px;color:var(--text-3);line-height:1.6}

/* ---------- FAQ ---------- */
.faq-list{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item:last-child{border-bottom:0}
.faq-q{
  width:100%;display:flex;align-items:center;gap:16px;min-height:56px;padding:14px 24px;
  text-align:left;font-size:16px;font-weight:600;color:var(--text);transition:background var(--ease);
}
.faq-q:hover{background:var(--surface-2)}
.faq-num{
  flex:0 0 32px;width:32px;height:32px;border-radius:8px;background:var(--surface-2);color:var(--brand-500);
  display:grid;place-items:center;font-family:var(--font-num);font-size:13px;font-weight:700;
  transition:background var(--ease),color var(--ease);
}
.faq-item.is-open .faq-num{background:var(--accent-500);color:#fff}
.faq-arrow{margin-left:auto;flex:0 0 16px;width:16px;height:16px;fill:none;stroke:var(--text-3);stroke-width:2;stroke-linecap:round;stroke-linejoin:round;transition:transform var(--ease)}
.faq-item.is-open .faq-arrow{transform:rotate(180deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height 220ms ease-out}
.faq-a-inner{padding:0 24px 20px 72px;font-size:15px;line-height:1.8;color:var(--text-2)}

/* ---------- CTA ---------- */
.cta-band{position:relative;overflow:hidden;background:var(--brand-900);color:#fff;padding:88px 0}
.cta-band::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:48px 48px;
}
.cta-band::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:repeating-linear-gradient(118deg,rgba(255,107,44,.05) 0 3px,transparent 3px 180px);
}
.cta-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.2fr auto;gap:40px;align-items:center}
.cta-inner h2{font-size:clamp(24px,3vw,34px);font-weight:700;letter-spacing:-.01em}
.cta-inner p{margin-top:14px;max-width:620px;font-size:15px;line-height:1.8;color:rgba(255,255,255,.74)}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink-900);color:rgba(255,255,255,.72);padding:72px 0 32px}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:40px}
.foot-brand{display:flex;align-items:center;gap:10px;color:#fff;margin-bottom:16px}
.foot-brand b{font-size:18px;font-weight:700}
.foot-brand em{font-style:normal;font-size:11.5px;letter-spacing:.08em;color:rgba(255,255,255,.66);margin-left:6px}
.foot-about{font-size:14px;line-height:1.8;max-width:320px}
.foot-col h4{font-size:15px;font-weight:600;color:#fff;margin-bottom:18px}
.foot-links{display:flex;flex-direction:column;gap:12px}
.foot-links a{font-size:14px;transition:color var(--ease),transform var(--ease)}
.foot-links a:hover{color:var(--accent-500);transform:translateX(2px)}
.foot-contact{font-size:14px;line-height:1.8}
.foot-contact strong{display:block;color:#fff;margin-bottom:6px;font-size:14px}
.foot-actions{display:flex;gap:10px;margin-top:16px}
.icon-btn{
  width:36px;height:36px;border-radius:50%;border:1px solid rgba(255,255,255,.24);
  display:grid;place-items:center;color:#fff;
  transition:background var(--ease),border-color var(--ease),transform var(--ease);
}
.icon-btn svg{width:16px;height:16px;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}
.icon-btn:hover{background:rgba(255,255,255,.10);border-color:rgba(255,255,255,.5);transform:translateY(-2px)}
.foot-bottom{
  margin-top:48px;padding-top:24px;border-top:1px solid rgba(255,255,255,.10);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.5);
}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  .container{padding:0 24px}
  .nav-main{display:none}
  .nav-actions .btn-ghost{display:none}
  .nav-toggle{display:flex}
  .site-header{height:60px}
  .cat-hero{padding:calc(60px + 48px) 0 96px}
  .cat-hero-grid{grid-template-columns:1fr;gap:32px}
  .cat-hero-media{order:-1}
  .cat-hero-media img{aspect-ratio:16/9}
  .kpi-grid{grid-template-columns:repeat(2,1fr)}
  .notes-grid{grid-template-columns:1fr}
  .content-flex{grid-template-columns:1fr}
  .content-figure{order:-1}
  .content-figure img{aspect-ratio:16/9}
  .cta-inner{grid-template-columns:1fr;gap:28px}
  .foot-grid{grid-template-columns:repeat(2,1fr);gap:32px}
  .section{padding:72px 0}
}
@media (max-width:767px){
  .section{padding:56px 0}
  .section-head{margin-bottom:28px}
  .tl-item{padding-left:24px}
  .tl-card{padding:18px}
  .faq-q{padding:14px 18px;gap:12px;font-size:15px;line-height:1.5}
  .faq-a-inner{padding:0 18px 18px 62px;font-size:14.5px}
  .note-card{padding:22px}
  .row-item{padding:18px}
  .hero-actions .btn{flex:1 1 100%}
  .cta-band{padding:64px 0}
  .cta-actions .btn{flex:1 1 100%}
}
@media (max-width:520px){
  .container{padding:0 20px}
  .brand-text em{display:none}
  .nav-actions .btn-primary{display:none}
  .kpi-grid{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr}
  .kpi-num{font-size:28px}
  .foot-bottom{flex-direction:column;gap:8px}
}

/* roulang page: category2 */
:root{
  --ink-900:#061A15;
  --brand-900:#07231C;
  --brand-700:#0B2E24;
  --brand-600:#12513D;
  --brand-500:#14684F;
  --brand-400:#2E8B6B;
  --bg:#F5F7F5;
  --surface:#FFFFFF;
  --surface-2:#F7FAF8;
  --line:#E3E8E4;
  --text:#1B2420;
  --text-2:#5C6A63;
  --text-3:#8A948F;
  --accent-500:#FF6B2C;
  --signal:#B8F03C;
  --warn:#E0562F;
  --tag-bg:#E7F3EE;
  --tag-fg:#14684F;
  --r-card:16px;
  --r-panel:20px;
  --r-btn:12px;
  --r-badge:6px;
  --r-input:10px;
  --r-img:14px;
  --sh-sm:0 1px 2px rgba(6,26,21,.06);
  --sh-md:0 8px 24px -8px rgba(6,26,21,.14);
  --sh-lg:0 24px 60px -24px rgba(6,26,21,.28);
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,sans-serif;
  --font-num:"DIN Alternate","Barlow Semi Condensed",ui-monospace,SFMono-Regular,monospace;
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.25;letter-spacing:-.01em}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:3px solid rgba(255,107,44,.45);outline-offset:2px;border-radius:4px}
.num{font-family:var(--font-num);font-variant-numeric:tabular-nums;letter-spacing:.01em}
body.no-scroll{overflow:hidden}

/* 容器与板块 */
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
.section{padding:96px 0}
.section-alt{background:var(--surface)}
.section-dark{background:var(--brand-900);color:#fff}
.section-line{border-top:1px solid var(--line)}
.deco{position:relative;overflow:hidden;isolation:isolate}
.deco::before{
  content:"";position:absolute;inset:0;pointer-events:none;z-index:0;
  background-image:linear-gradient(rgba(255,255,255,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.06) 1px,transparent 1px);
  background-size:56px 56px;
}
.deco::after{
  content:"";position:absolute;inset:-10%;pointer-events:none;z-index:0;
  background:repeating-linear-gradient(112deg,rgba(255,255,255,.03) 0 140px,transparent 140px 300px);
}
.deco>*{position:relative;z-index:1}

.sec-head{max-width:780px;margin-bottom:36px}
.sec-head h2{font-size:clamp(24px,3vw,36px);margin-bottom:14px}
.sec-head p{color:var(--text-2);font-size:16px;max-width:760px}
.sec-head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px}
.sec-head-row .sec-head{margin-bottom:0}
.section-dark .sec-head p{color:rgba(255,255,255,.72)}
.section-dark .sec-head h2{color:#fff}

.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;font-weight:600;letter-spacing:.06em;
  color:var(--tag-fg);background:var(--tag-bg);
  padding:6px 12px;border-radius:var(--r-badge);margin-bottom:18px;
}
.section-dark .eyebrow{background:rgba(184,240,60,.12);color:var(--signal)}
.eyebrow i{width:6px;height:6px;border-radius:2px;background:var(--accent-500);display:inline-block}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:42px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;border:1px solid transparent;
  cursor:pointer;transition:transform .22s var(--ease),background-color .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease),color .22s var(--ease);
  white-space:nowrap;
}
.btn-sm{height:38px;padding:0 18px;font-size:14px}
.btn-lg{height:48px;padding:0 28px;font-size:16px}
.btn-pill{border-radius:999px}
.btn-block{width:100%}
.btn-primary{background:var(--accent-500);color:#08231A;font-weight:700}
.btn-primary:hover{background:#FF7C45;transform:translateY(-1px);box-shadow:var(--sh-md)}
.btn-primary:active{transform:translateY(1px);box-shadow:var(--sh-sm)}
.btn-ghost{background:transparent;border-color:rgba(255,255,255,.45);color:#fff}
.btn-ghost:hover{border-color:#fff;background:rgba(255,255,255,.08)}
.btn-ghost:active{transform:translateY(1px)}
.btn-outline{background:transparent;border-color:var(--line);color:var(--text)}
.btn-outline:hover{border-color:var(--brand-400);background:var(--surface-2);transform:translateY(-1px)}
.btn-outline:active{transform:translateY(1px)}
.btn[disabled],.btn.is-disabled{opacity:.4;cursor:not-allowed;transform:none;box-shadow:none}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;color:var(--accent-500);
  font-size:14px;font-weight:600;transition:color .2s var(--ease);
}
.link-arrow svg{width:14px;height:14px;stroke:currentColor;fill:none;stroke-width:2;transition:transform .22s var(--ease)}
.link-arrow:hover svg{transform:translateX(3px)}

/* 导航 */
.site-header{
  position:sticky;top:0;z-index:100;
  background:var(--brand-900);
  border-bottom:1px solid rgba(255,255,255,.10);
  transition:box-shadow .2s var(--ease),background-color .2s var(--ease);
}
.site-header.is-stuck{box-shadow:var(--sh-md)}
.nav-wrap{display:flex;align-items:center;gap:28px;height:72px}
.brand{display:flex;align-items:center;gap:12px;color:#fff;flex:0 0 auto}
.brand-mark{
  width:36px;height:36px;border-radius:10px;background:var(--brand-600);
  display:inline-flex;flex-direction:column;justify-content:center;gap:4px;padding:0 8px;
  transition:background-color .22s var(--ease);flex:0 0 auto;
}
.brand-mark i{display:block;height:3px;border-radius:2px;background:#fff;opacity:.9}
.brand-mark i:nth-child(1){width:100%}
.brand-mark i:nth-child(2){width:64%;background:var(--signal)}
.brand-mark i:nth-child(3){width:82%}
.brand:hover .brand-mark{background:var(--accent-500)}
.brand-text{display:flex;align-items:baseline;gap:6px;white-space:nowrap}
.brand-text b{font-size:19px;font-weight:700;letter-spacing:-.01em}
.brand-text em{font-style:normal;font-size:11.5px;font-weight:500;letter-spacing:.08em;color:rgba(255,255,255,.72)}
.nav-main{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-link{
  position:relative;padding:10px 14px;font-size:15px;font-weight:500;
  color:rgba(255,255,255,.82);transition:color .2s var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:4px;height:2px;
  background:var(--accent-500);transform:scaleX(0);transform-origin:left;
  transition:transform .18s var(--ease);
}
.nav-link:hover{color:#fff}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:#fff;font-weight:600}
.nav-link.is-active::after{transform:scaleX(1)}
.nav-actions{display:flex;align-items:center;gap:12px;margin-left:8px}
.nav-toggle{
  display:none;width:40px;height:40px;border:0;background:transparent;
  border-radius:10px;cursor:pointer;padding:9px 7px;flex-direction:column;justify-content:space-between;
}
.nav-toggle i{display:block;height:2px;border-radius:2px;background:#fff;transition:transform .22s var(--ease),opacity .22s var(--ease)}
.nav-toggle[aria-expanded="true"] i:nth-child(1){transform:translateY(9px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] i:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] i:nth-child(3){transform:translateY(-9px) rotate(-45deg)}

.nav-mask{
  position:fixed;inset:0;background:rgba(6,26,21,.55);z-index:110;
  opacity:0;visibility:hidden;transition:opacity .24s var(--ease),visibility .24s var(--ease);
}
.nav-mask.is-open{opacity:1;visibility:visible}
.nav-drawer{
  position:fixed;top:0;right:0;bottom:0;width:86vw;max-width:360px;
  background:var(--brand-900);z-index:120;
  transform:translateX(102%);transition:transform .28s var(--ease);
  display:flex;flex-direction:column;padding:20px 0 0;
}
.nav-drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding:0 20px 18px;border-bottom:1px solid rgba(255,255,255,.10)}
.drawer-close{
  width:36px;height:36px;border-radius:999px;border:1px solid rgba(255,255,255,.3);
  background:transparent;color:#fff;cursor:pointer;font-size:18px;line-height:1;
  display:inline-flex;align-items:center;justify-content:center;transition:border-color .2s var(--ease),background-color .2s var(--ease);
}
.drawer-close:hover{border-color:#fff;background:rgba(255,255,255,.08)}
.drawer-nav{display:flex;flex-direction:column;padding:8px 0;overflow-y:auto}
.drawer-nav a{
  display:flex;align-items:center;height:48px;padding:0 20px;color:rgba(255,255,255,.86);
  font-size:15px;border-bottom:1px solid rgba(255,255,255,.08);
}
.drawer-nav a.is-active{color:#fff;font-weight:600;border-left:3px solid var(--accent-500);padding-left:17px}
.drawer-foot{margin-top:auto;padding:16px 20px 24px;border-top:1px solid rgba(255,255,255,.10)}

/* 面包屑 */
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--text-3);margin-bottom:20px}
.crumb a{color:var(--brand-500);transition:color .2s var(--ease)}
.crumb a:hover{color:var(--accent-500)}
.crumb span.sep{color:var(--line)}
.crumb .current{color:var(--text-3);max-width:60vw;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* 分类 Hero */
.hero-sub{
  background:linear-gradient(180deg,#FFFFFF 0%,var(--bg) 100%);
  border-bottom:1px solid var(--line);
  padding:44px 0 76px;
}
.hero-sub-grid{display:grid;grid-template-columns:1.35fr .95fr;gap:56px;align-items:center}
.hero-sub h1{font-size:clamp(28px,3.6vw,44px);font-weight:800;line-height:1.18;letter-spacing:-.02em;margin-bottom:18px}
.hero-sub .lead{font-size:17px;color:var(--text-2);max-width:620px;margin-bottom:26px}
.hero-facts{display:flex;flex-wrap:wrap;gap:14px 28px}
.hero-facts li{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--text-2)}
.hero-facts li::before{
  content:"";width:16px;height:16px;border-radius:5px;flex:0 0 auto;
  background:var(--tag-bg) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%2314684F' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M4 12.5l5 5L20 6.5'/%3E%3C/svg%3E") center/12px no-repeat;
}
.hero-side-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-panel);
  padding:24px;box-shadow:var(--sh-md);
}
.hero-side-card img{border-radius:var(--r-img);aspect-ratio:16/9;object-fit:cover;margin-bottom:20px}
.hero-side-card h3{font-size:18px;margin-bottom:8px}
.hero-side-card p{font-size:14px;color:var(--text-2);margin-bottom:20px}
.hero-side-card .btn{margin-bottom:12px}
.hero-side-note{font-size:12.5px;color:var(--text-3);display:flex;align-items:center;gap:8px}
.hero-side-note i{width:6px;height:6px;border-radius:50%;background:var(--brand-400);display:inline-block;flex:0 0 auto}

/* Bento 功能网格 */
.bento{display:grid;grid-template-columns:repeat(12,1fr);gap:24px}
.bento-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px;box-shadow:var(--sh-sm);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
  display:flex;flex-direction:column;
}
.bento-card:hover{transform:translateY(-4px);box-shadow:var(--sh-lg);border-color:var(--brand-400)}
.col-4{grid-column:span 4}
.col-8{grid-column:span 8}
.bento-dark{background:var(--brand-600);border-color:rgba(255,255,255,.12);color:#fff;box-shadow:none}
.bento-dark:hover{box-shadow:var(--sh-lg);border-color:rgba(255,255,255,.3)}
.bento-dark h3{color:#fff}
.bento-dark p{color:rgba(255,255,255,.78)}
.bento-wide{display:grid;grid-template-columns:1.05fr .95fr;gap:28px;align-items:center;padding:28px}
.bento-wide img{border-radius:var(--r-img);aspect-ratio:4/3;object-fit:cover;width:100%}
.bento-tag{font-size:12px;font-weight:600;color:var(--tag-fg);background:var(--tag-bg);padding:4px 10px;border-radius:var(--r-badge);display:inline-block;margin-bottom:14px;align-self:flex-start}
.bento-dark .bento-tag{background:rgba(255,255,255,.14);color:#fff}
.bento-card h3{font-size:20px;margin-bottom:10px}
.bento-card p{font-size:14.5px;color:var(--text-2);margin-bottom:18px}
.bento-card .link-arrow,.bento-card .btn{margin-top:auto;align-self:flex-start}
.icon-box{
  width:40px;height:40px;border-radius:12px;background:var(--surface-2);border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;margin-bottom:16px;
}
.icon-box svg{width:20px;height:20px;stroke:var(--brand-400);fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.bento-dark .icon-box{background:rgba(255,255,255,.10);border-color:rgba(255,255,255,.16)}
.bento-dark .icon-box svg{stroke:var(--signal)}

/* 对比 */
.compare{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.compare-col{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);padding:26px;box-shadow:var(--sh-sm)}
.compare-col.is-win{background:#F1F8F4;border-color:#CDE6D8}
.compare-head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-bottom:16px;border-bottom:1px solid var(--line);margin-bottom:8px}
.compare-head h3{font-size:19px}
.compare-head .chip{font-size:12px;font-weight:600;padding:4px 10px;border-radius:var(--r-badge)}
.chip-warn{background:#FDECE6;color:#B33A18}
.chip-ok{background:var(--tag-bg);color:var(--tag-fg)}
.compare-row{display:grid;grid-template-columns:96px 1fr;gap:14px;padding:16px 0;border-bottom:1px dashed var(--line);align-items:start}
.compare-row:last-child{border-bottom:0}
.compare-row dt{font-size:13px;font-weight:600;color:var(--text-3)}
.compare-row dd{margin:0;font-size:14.5px;color:var(--text-2);display:flex;gap:10px;align-items:flex-start}
.compare-col.is-win .compare-row dd{color:var(--text)}
.compare-row dd::before{
  content:"";width:16px;height:16px;border-radius:5px;flex:0 0 auto;margin-top:5px;
  background:#FDECE6 url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23B33A18' stroke-width='3' stroke-linecap='round'%3E%3Cpath d='M7 7l10 10M17 7L7 17'/%3E%3C/svg%3E") center/11px no-repeat;
}
.compare-col.is-win .compare-row dd::before{
  background:var(--tag-bg) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%2314684F' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M4 12.5l5 5L20 6.5'/%3E%3C/svg%3E") center/11px no-repeat;
}

/* 流程 */
.flow{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.flow-item{
  display:grid;grid-template-columns:56px 1fr;gap:20px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px;box-shadow:var(--sh-sm);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.flow-item:hover{transform:translateY(-4px);box-shadow:var(--sh-md);border-color:var(--brand-400)}
.flow-num{
  width:56px;height:56px;border-radius:14px;background:var(--brand-700);color:#fff;
  display:flex;align-items:center;justify-content:center;
  font-family:var(--font-num);font-size:20px;font-weight:700;letter-spacing:.02em;
}
.flow-item:nth-child(2n) .flow-num{background:var(--brand-500)}
.flow-item h3{font-size:18px;margin-bottom:8px}
.flow-item p{font-size:14.5px;color:var(--text-2)}

/* 数据说明条 */
.stat-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:40px}
.stat-item{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:20px 22px;box-shadow:var(--sh-sm);
}
.stat-item strong{display:block;font-family:var(--font-num);font-size:30px;font-weight:700;color:var(--brand-500);letter-spacing:.01em;line-height:1.2}
.stat-item span{display:block;font-size:13px;color:var(--text-2);margin-top:6px}
.stat-bar{display:flex;align-items:flex-end;gap:4px;height:18px;margin-top:12px}
.stat-bar i{flex:1;border-radius:2px;background:linear-gradient(180deg,var(--signal),var(--brand-400))}

/* FAQ */
.faq-wrap{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-sm)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item:last-child{border-bottom:0}
.faq-q{
  width:100%;display:flex;align-items:center;gap:16px;min-height:64px;
  padding:12px 24px;background:transparent;border:0;text-align:left;cursor:pointer;
  font-size:16px;font-weight:600;color:var(--text);transition:background-color .2s var(--ease);
}
.faq-q:hover{background:var(--surface-2)}
.faq-idx{
  width:32px;height:32px;border-radius:8px;background:var(--surface-2);color:var(--brand-500);
  display:flex;align-items:center;justify-content:center;flex:0 0 auto;
  font-family:var(--font-num);font-size:14px;font-weight:700;
  transition:background-color .22s var(--ease),color .22s var(--ease);
}
.faq-item.is-open .faq-idx{background:var(--accent-500);color:#fff}
.faq-arrow{
  margin-left:auto;width:18px;height:18px;flex:0 0 auto;
  stroke:var(--text-3);fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;
  transition:transform .22s var(--ease),stroke .22s var(--ease);
}
.faq-item.is-open .faq-arrow{transform:rotate(180deg);stroke:var(--accent-500)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .24s var(--ease)}
.faq-a p{padding:0 24px 22px 72px;font-size:15px;color:var(--text-2)}

/* CTA 表单 */
.cta-grid{display:grid;grid-template-columns:5fr 7fr;gap:48px;align-items:start}
.cta-list{display:flex;flex-direction:column;gap:14px;margin:26px 0 20px}
.cta-list li{display:flex;gap:12px;align-items:flex-start;font-size:15px;color:rgba(255,255,255,.86)}
.cta-list li::before{
  content:"";width:18px;height:18px;border-radius:6px;flex:0 0 auto;margin-top:5px;
  background:rgba(184,240,60,.16) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23B8F03C' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M4 12.5l5 5L20 6.5'/%3E%3C/svg%3E") center/12px no-repeat;
}
.cta-note{font-size:13px;color:rgba(255,255,255,.6)}
.form-card{background:var(--surface);border-radius:var(--r-panel);padding:28px;box-shadow:var(--sh-lg)}
.field{margin-bottom:18px}
.field label{display:block;font-size:13px;font-weight:600;color:var(--text);margin-bottom:8px}
.field input,.field select,.field textarea{
  width:100%;height:46px;padding:0 14px;border-radius:var(--r-input);
  border:1px solid var(--line);background:var(--surface-2);color:var(--text);
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease),background-color .2s var(--ease);
}
.field textarea{height:auto;padding:12px 14px;resize:vertical;line-height:1.7}
.field input:hover,.field select:hover,.field textarea:hover{border-color:#CFD9D3}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--brand-500);background:#fff;
  box-shadow:0 0 0 3px rgba(255,107,44,.18);
}
.field.is-error input,.field.is-error textarea{border-color:var(--warn);background:#FFF7F4}
.field-err{display:block;font-size:12.5px;color:var(--warn);min-height:18px;margin-top:6px}
.form-tip{font-size:12.5px;color:var(--text-3);margin-top:14px}
.form-success{
  display:none;margin-top:16px;padding:14px 16px;border-radius:var(--r-input);
  background:var(--tag-bg);color:var(--tag-fg);font-size:14px;font-weight:600;
}
.form-success.is-show{display:block}

/* 页脚 */
.site-footer{background:var(--ink-900);color:rgba(255,255,255,.72);padding:72px 0 0;font-size:14px}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:48px}
.foot-brand{display:flex;align-items:center;gap:12px;color:#fff;margin-bottom:16px}
.foot-brand span b{font-size:18px;font-weight:700}
.foot-brand span em{font-style:normal;font-size:11.5px;letter-spacing:.08em;color:rgba(255,255,255,.68);margin-left:6px}
.foot-about{max-width:320px;line-height:1.8;color:rgba(255,255,255,.6);font-size:13.5px}
.foot-col h4{font-size:15px;color:#fff;margin-bottom:18px;font-weight:600}
.foot-links{display:flex;flex-direction:column;gap:12px}
.foot-links a{font-size:14px;color:rgba(255,255,255,.68);transition:color .2s var(--ease),transform .2s var(--ease)}
.foot-links a:hover{color:var(--accent-500);transform:translateX(2px)}
.foot-contact{font-size:13.5px;line-height:1.8;color:rgba(255,255,255,.6);margin-bottom:16px}
.foot-contact strong{display:block;color:#fff;font-size:14px;margin-bottom:6px;font-weight:600}
.foot-actions{display:flex;gap:12px}
.icon-btn{
  width:36px;height:36px;border-radius:999px;border:1px solid rgba(255,255,255,.28);
  display:inline-flex;align-items:center;justify-content:center;
  transition:border-color .2s var(--ease),background-color .2s var(--ease),transform .2s var(--ease);
}
.icon-btn svg{width:17px;height:17px;stroke:#fff;fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.icon-btn:hover{border-color:var(--accent-500);background:rgba(255,107,44,.12);transform:translateY(-2px)}
.foot-bottom{
  display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;
  padding:22px 0 28px;border-top:1px solid rgba(255,255,255,.10);
  font-size:13px;color:rgba(255,255,255,.5);
}

/* 响应式 */
@media (max-width:1279px){
  .container{padding:0 28px}
  .hero-sub-grid{gap:40px}
}
@media (max-width:1023px){
  .container{padding:0 24px}
  .section{padding:72px 0}
  .nav-main{display:none}
  .nav-actions .btn-ghost{display:none}
  .nav-toggle{display:flex}
  .nav-wrap{height:60px;gap:16px}
  .hero-sub{padding:32px 0 56px}
  .hero-sub-grid{grid-template-columns:1fr;gap:32px}
  .bento{grid-template-columns:repeat(2,1fr)}
  .col-4,.col-8{grid-column:span 1}
  .bento-wide{grid-template-columns:1fr}
  .compare{grid-template-columns:1fr}
  .flow{grid-template-columns:1fr}
  .stat-strip{grid-template-columns:repeat(2,1fr)}
  .cta-grid{grid-template-columns:1fr;gap:32px}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  .sec-head-row{flex-direction:column;align-items:flex-start;gap:14px}
  .bento{grid-template-columns:1fr}
  .faq-q{padding:12px 18px;font-size:15px;gap:12px}
  .faq-a p{padding:0 18px 20px 62px}
  .foot-grid{grid-template-columns:1fr}
}
@media (max-width:519px){
  .container{padding:0 20px}
  .section{padding:56px 0}
  .hero-sub h1{font-size:26px}
  .hero-sub .lead{font-size:15.5px}
  .brand-text em{display:none}
  .btn-lg,.btn{width:100%}
  .nav-actions .btn{width:auto}
  .cta-list li{font-size:14.5px}
  .form-card{padding:20px}
  .stat-strip{grid-template-columns:1fr}
  .flow-item{grid-template-columns:44px 1fr;gap:14px;padding:20px}
  .flow-num{width:44px;height:44px;border-radius:12px;font-size:17px}
  .compare-col{padding:20px}
  .compare-row{grid-template-columns:1fr;gap:6px}
}

/* roulang page: category3 */
:root{
  --ink-900:#061A15;
  --brand-900:#07231C;
  --brand-700:#0B2E24;
  --brand-600:#12513D;
  --brand-500:#14684F;
  --brand-400:#2E8B6B;
  --bg:#F5F7F5;
  --surface:#FFFFFF;
  --surface-2:#F7FAF8;
  --line:#E3E8E4;
  --text:#1B2420;
  --text-2:#5C6A63;
  --text-3:#8A948F;
  --accent:#FF6B2C;
  --accent-600:#E85A1E;
  --signal:#B8F03C;
  --warn:#E0562F;
  --tint-green:#E7F3EE;
  --tint-green-text:#14684F;
  --tint-warn:#FDECE6;
  --tint-warn-text:#B33A18;
  --r-xs:6px;
  --r-sm:10px;
  --r-md:12px;
  --r-lg:16px;
  --r-xl:20px;
  --pill:999px;
  --sh-sm:0 1px 2px rgba(6,26,21,.06);
  --sh-md:0 8px 24px -8px rgba(6,26,21,.14);
  --sh-lg:0 24px 60px -24px rgba(6,26,21,.28);
  --font:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,sans-serif;
  --font-num:"DIN Alternate","Barlow Semi Condensed",ui-monospace,SFMono-Regular,Menlo,monospace;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{margin:0;font-family:var(--font);background:var(--bg);color:var(--text);font-size:16px;line-height:1.8;-webkit-font-smoothing:antialiased;}
img{max-width:100%;display:block;border-radius:14px;height:auto;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;font-size:inherit;}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--text);}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
:focus-visible{outline:3px solid rgba(255,107,44,.45);outline-offset:2px;border-radius:6px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px;}

/* 导航 */
.site-header{position:sticky;top:0;z-index:100;background:var(--brand-700);border-bottom:1px solid rgba(255,255,255,.08);transition:background .2s ease,box-shadow .2s ease,border-color .2s ease;}
.site-header.is-scrolled{background:var(--brand-900);border-bottom-color:rgba(255,255,255,.10);box-shadow:var(--sh-md);}
.nav-wrap{display:flex;align-items:center;gap:24px;height:72px;}
.brand{display:inline-flex;align-items:center;gap:12px;flex:0 0 auto;}
.brand-mark{width:34px;height:34px;border-radius:10px;background:var(--brand-600);display:flex;flex-direction:column;justify-content:center;gap:4px;padding:0 9px;transition:background .22s ease-out;}
.brand-mark i{display:block;height:2px;border-radius:2px;background:#fff;opacity:.92;}
.brand-mark i:nth-child(2){width:64%;background:var(--signal);opacity:1;}
.brand-mark i:nth-child(3){width:82%;}
.brand:hover .brand-mark{background:var(--accent);}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-text b{font-size:19px;font-weight:700;color:#fff;letter-spacing:-.01em;}
.brand-text em{font-style:normal;font-size:11.5px;font-weight:500;letter-spacing:.08em;color:rgba(255,255,255,.62);}
.nav-main{display:flex;align-items:center;gap:4px;margin:0 auto;}
.nav-link{position:relative;padding:10px 14px;font-size:15px;font-weight:500;color:rgba(255,255,255,.82);border-radius:8px;transition:color .2s ease;}
.nav-link::after{content:"";position:absolute;left:14px;bottom:2px;width:0;height:2px;border-radius:2px;background:var(--accent);transition:width .18s ease-out;}
.nav-link:hover{color:#fff;}
.nav-link:hover::after{width:56%;}
.nav-link.is-active{color:#fff;font-weight:600;}
.nav-link.is-active::after{width:56%;}
.nav-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.nav-toggle{display:none;width:40px;height:40px;padding:0;border-radius:10px;border:1px solid rgba(255,255,255,.28);background:transparent;cursor:pointer;place-items:center;}
.nav-toggle i{display:block;width:18px;height:2px;border-radius:2px;background:#fff;margin:3px auto;}
.nav-toggle:hover{border-color:var(--accent);}

/* 按钮 */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-size:15px;font-weight:600;line-height:1;border-radius:var(--r-md);border:1px solid transparent;cursor:pointer;transition:all .22s ease-out;white-space:nowrap;}
.btn-sm{height:42px;padding:0 22px;}
.btn-lg{height:48px;padding:0 28px;}
.btn-pill{border-radius:var(--pill);}
.btn-primary{background:var(--accent);color:#08251C;font-weight:700;}
.btn-primary:hover{background:#FF7F49;transform:translateY(-1px);box-shadow:var(--sh-md);}
.btn-primary:active{transform:translateY(0);background:var(--accent-600);}
.btn-ghost{background:transparent;border-color:rgba(255,255,255,.5);color:#fff;}
.btn-ghost:hover{background:rgba(255,255,255,.12);border-color:#fff;transform:translateY(-1px);}
.btn-outline{background:var(--surface);border-color:var(--line);color:var(--text);}
.btn-outline:hover{border-color:var(--brand-400);color:var(--brand-500);box-shadow:var(--sh-sm);}

/* 移动抽屉 */
.nav-mask{position:fixed;inset:0;background:rgba(6,26,21,.55);opacity:0;visibility:hidden;transition:opacity .25s ease;z-index:150;}
.nav-mask.is-open{opacity:1;visibility:visible;}
.nav-drawer{position:fixed;top:0;right:0;width:86vw;max-width:360px;height:100%;background:var(--brand-900);z-index:200;transform:translateX(102%);transition:transform .28s ease-out;display:flex;flex-direction:column;padding:20px;}
.nav-drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:18px;border-bottom:1px solid rgba(255,255,255,.10);}
.drawer-head span{color:#fff;font-size:15px;font-weight:600;}
.drawer-close{width:36px;height:36px;border-radius:50%;border:1px solid rgba(255,255,255,.28);background:transparent;color:#fff;cursor:pointer;line-height:1;}
.drawer-close:hover{border-color:var(--accent);color:var(--accent);}
.drawer-nav{display:flex;flex-direction:column;margin-top:12px;}
.drawer-nav a{display:flex;align-items:center;height:48px;padding:0 10px;font-size:15px;color:rgba(255,255,255,.8);border-bottom:1px solid rgba(255,255,255,.08);transition:color .2s ease;}
.drawer-nav a:hover{color:var(--accent);}
.drawer-nav a.is-active{color:#fff;font-weight:600;box-shadow:inset 3px 0 0 var(--accent);padding-left:16px;}
.drawer-cta{margin-top:auto;width:100%;}

/* 首屏 */
.hero{position:relative;overflow:hidden;background:var(--brand-700);color:#fff;padding:48px 0 84px;}
.hero::before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.06) 1px,transparent 1px);background-size:56px 56px;pointer-events:none;}
.hero::after{content:"";position:absolute;top:-60%;left:0;right:0;height:220%;background:repeating-linear-gradient(115deg,rgba(184,240,60,.035) 0 120px,transparent 120px 280px);pointer-events:none;}
.hero-inner{position:relative;z-index:2;}
.crumbs{display:flex;align-items:center;gap:8px;font-size:14px;color:rgba(255,255,255,.6);margin-bottom:18px;}
.crumbs a{color:rgba(255,255,255,.78);transition:color .2s;}
.crumbs a:hover{color:var(--accent);}
.crumbs .sep{opacity:.45;}
.crumbs .current{color:rgba(255,255,255,.55);}
.hero-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:56px;align-items:center;}
.hero-tag{display:inline-flex;align-items:center;gap:8px;padding:5px 12px;border-radius:var(--r-xs);background:rgba(184,240,60,.14);color:var(--signal);font-size:12.5px;font-weight:600;letter-spacing:.04em;}
.hero h1{color:#fff;font-size:clamp(32px,4.6vw,54px);font-weight:800;line-height:1.15;letter-spacing:-.02em;margin:20px 0 18px;}
.hero-sub{font-size:17px;line-height:1.8;color:rgba(255,255,255,.76);max-width:580px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px;}
.hero-facts{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;font-size:13px;color:rgba(255,255,255,.6);}
.hero-facts span+span{border-left:1px solid rgba(255,255,255,.26);padding-left:14px;}
.hero-media{position:relative;border-radius:14px;overflow:hidden;box-shadow:var(--sh-lg);border:1px solid rgba(255,255,255,.10);}
.hero-media img{width:100%;aspect-ratio:16/11;object-fit:cover;border-radius:14px;}
.hero-media::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(6,26,21,.72),rgba(6,26,21,0) 62%);}

/* 板块基础 */
.section{padding:96px 0;}
.section-alt{background:var(--surface-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{max-width:780px;margin-bottom:40px;}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--brand-500);letter-spacing:.06em;margin-bottom:12px;}
.eyebrow::before{content:"";width:22px;height:2px;border-radius:2px;background:var(--accent);}
.section-head h2{font-size:clamp(24px,3vw,36px);line-height:1.25;letter-spacing:-.01em;}
.section-head p{margin-top:14px;font-size:16px;color:var(--text-2);max-width:760px;}

/* 快速入口 */
.quick-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.quick-card{display:flex;flex-direction:column;gap:12px;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);padding:24px;box-shadow:var(--sh-sm);transition:all .22s ease-out;}
.quick-card:hover{transform:translateY(-4px);box-shadow:var(--sh-lg);border-color:var(--brand-400);}
.quick-ico{width:40px;height:40px;border-radius:var(--r-md);background:var(--tint-green);color:var(--brand-500);display:grid;place-items:center;}
.quick-ico svg{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;}
.quick-card h3{font-size:17px;font-weight:600;}
.quick-card p{font-size:14px;line-height:1.72;color:var(--text-2);}
.quick-card .more{margin-top:auto;display:inline-flex;align-items:center;gap:6px;font-size:13.5px;font-weight:600;color:var(--accent);}
.quick-card .more i{display:inline-block;transition:transform .22s ease-out;font-style:normal;}
.quick-card:hover .more i{transform:translateX(3px);}

/* 规则条目 */
.rule-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;}
.rule-card{display:flex;gap:18px;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);padding:24px;transition:all .22s ease-out;}
.rule-card:hover{transform:translateY(-4px);box-shadow:var(--sh-md);border-color:var(--brand-400);}
.rule-num{flex:0 0 40px;height:40px;border-radius:var(--r-md);background:var(--surface-2);color:var(--brand-500);font-family:var(--font-num);font-size:15px;font-weight:700;display:grid;place-items:center;transition:all .22s ease-out;letter-spacing:.01em;}
.rule-card:hover .rule-num{background:var(--accent);color:#fff;}
.rule-card h3{font-size:16px;font-weight:600;margin-bottom:8px;}
.rule-card p{font-size:14px;line-height:1.75;color:var(--text-2);}

/* 常见问题 */
.faq-wrap{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-sm);}
.faq-item+.faq-item{border-top:1px solid var(--line);}
.faq-q{width:100%;display:flex;align-items:center;gap:16px;padding:18px 24px;min-height:56px;background:none;border:0;cursor:pointer;text-align:left;font-size:16px;font-weight:600;color:var(--text);transition:background .2s ease;}
.faq-q:hover{background:var(--surface-2);}
.faq-idx{flex:0 0 32px;height:32px;border-radius:8px;background:var(--surface-2);color:var(--brand-500);font-family:var(--font-num);font-size:13px;font-weight:700;display:grid;place-items:center;transition:all .2s ease;}
.faq-item.is-open .faq-idx{background:var(--accent);color:#fff;}
.faq-text{flex:1;}
.faq-ico{position:relative;flex:0 0 18px;width:18px;height:18px;}
.faq-ico::before,.faq-ico::after{content:"";position:absolute;background:var(--text-3);border-radius:2px;transition:transform .22s ease;}
.faq-ico::before{left:8px;top:1px;width:2px;height:16px;}
.faq-ico::after{left:1px;top:8px;width:16px;height:2px;}
.faq-item.is-open .faq-ico::before{transform:scaleY(0);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .22s ease-out;}
.faq-a-inner{padding:0 24px 22px 72px;font-size:15px;line-height:1.8;color:var(--text-2);}
.faq-item.is-open .faq-a{max-height:420px;}

/* 联系支持 */
.contact-card{position:relative;overflow:hidden;display:grid;grid-template-columns:1.15fr .85fr;gap:44px;align-items:center;background:var(--brand-900);border-radius:var(--r-xl);padding:56px;color:#fff;}
.contact-card::before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.06) 1px,transparent 1px);background-size:56px 56px;pointer-events:none;}
.contact-main,.contact-list{position:relative;z-index:2;}
.contact-card h2{color:#fff;font-size:clamp(24px,3vw,34px);line-height:1.25;letter-spacing:-.01em;}
.contact-card .contact-main p{margin-top:16px;font-size:15px;line-height:1.8;color:rgba(255,255,255,.72);max-width:560px;}
.contact-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px;}
.contact-list{display:flex;flex-direction:column;gap:14px;}
.contact-list li{display:flex;align-items:center;gap:14px;padding:16px 18px;border-radius:var(--r-lg);border:1px solid rgba(255,255,255,.12);background:rgba(255,255,255,.04);font-size:14.5px;color:rgba(255,255,255,.82);}
.contact-list b{flex:0 0 32px;height:32px;border-radius:var(--r-xs);background:rgba(184,240,60,.14);color:var(--signal);font-family:var(--font-num);font-size:13px;font-weight:700;display:grid;place-items:center;}

/* 页脚 */
.site-footer{background:var(--ink-900);color:rgba(255,255,255,.68);padding:72px 0 0;}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:48px;}
.foot-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px;}
.foot-brand .brand-mark{background:var(--brand-600);}
.foot-brand span b{display:block;color:#fff;font-size:18px;font-weight:700;line-height:1.2;}
.foot-brand span em{display:block;font-style:normal;font-size:11.5px;letter-spacing:.08em;color:rgba(255,255,255,.58);}
.foot-about{font-size:14px;line-height:1.8;color:rgba(255,255,255,.6);max-width:320px;}
.foot-col h4{color:#fff;font-size:15px;font-weight:600;margin-bottom:16px;}
.foot-links{display:flex;flex-direction:column;}
.foot-links a{font-size:14px;padding:6px 0;color:rgba(255,255,255,.68);transition:all .2s ease;}
.foot-links a:hover{color:var(--accent);transform:translateX(2px);}
.foot-contact{font-size:14px;line-height:1.8;color:rgba(255,255,255,.6);}
.foot-contact strong{display:block;color:#fff;font-size:14px;margin-bottom:6px;}
.foot-actions{display:flex;gap:10px;margin-top:18px;}
.icon-btn{width:36px;height:36px;border-radius:50%;border:1px solid rgba(255,255,255,.28);display:grid;place-items:center;color:#fff;transition:all .2s ease;}
.icon-btn:hover{border-color:var(--accent);color:var(--accent);transform:translateY(-2px);}
.icon-btn svg{width:16px;height:16px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;}
.foot-bottom{display:flex;justify-content:space-between;gap:16px;border-top:1px solid rgba(255,255,255,.10);padding:22px 0 28px;font-size:13px;color:rgba(255,255,255,.5);}

@media (max-width:1279px){
  .container{padding:0 28px;}
}
@media (max-width:1023px){
  .container{padding:0 24px;}
  .nav-main{display:none;}
  .nav-toggle{display:grid;}
  .nav-actions .btn-ghost{display:none;}
  .nav-wrap{height:64px;}
  .hero{padding:36px 0 64px;}
  .hero-grid{grid-template-columns:1fr;gap:36px;}
  .hero-media{order:-1;}
  .hero-media img{aspect-ratio:16/8;}
  .section{padding:72px 0;}
  .quick-grid{grid-template-columns:repeat(2,1fr);gap:20px;}
  .rule-grid{grid-template-columns:1fr;}
  .contact-card{grid-template-columns:1fr;gap:32px;padding:40px;}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767px){
  .container{padding:0 20px;}
  .nav-wrap{height:60px;}
  .nav-actions .btn-pill{display:none;}
  .section{padding:56px 0;}
  .section-head{margin-bottom:28px;}
  .quick-grid{grid-template-columns:1fr;}
  .faq-q{padding:16px 18px;gap:12px;font-size:15.5px;}
  .faq-a-inner{padding:0 18px 18px 62px;}
  .contact-card{padding:32px 24px;border-radius:var(--r-lg);}
  .foot-grid{grid-template-columns:1fr;gap:28px;padding-bottom:36px;}
  .foot-bottom{flex-direction:column;gap:8px;}
}
@media (max-width:479px){
  .hero h1{font-size:30px;}
  .hero-actions .btn{width:100%;}
  .contact-actions .btn{width:100%;}
  .brand-text em{display:none;}
  .hero-facts{flex-direction:column;gap:8px;}
  .hero-facts span+span{border-left:0;padding-left:0;}
}