/* roulang page: index */
:root{
  --brand-deep:#0F3D33;
  --brand:#17C08A;
  --brand-hover:#12A876;
  --brand-active:#0E8D62;
  --accent:#FF7A45;
  --warm:#FFD166;
  --bg:#F6F4EF;
  --card:#FFFFFF;
  --alt:#EDF2EE;
  --text:#16211D;
  --text-2:#4A5A54;
  --text-3:#7C8B85;
  --border:#E1E6E2;
  --border-strong:#C9D8CF;
  --radius-card:14px;
  --radius-block:20px;
  --radius-btn:10px;
  --shadow-card:0 1px 2px rgba(15,61,51,.06), 0 8px 24px -14px rgba(15,61,51,.20);
  --shadow-hover:0 10px 30px -14px rgba(15,61,51,.30);
  --ease:200ms ease-out;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:system-ui,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p,figure{margin:0}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px}
body.no-scroll{overflow:hidden}

/* ---------- 容器与分区 ---------- */
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
.section{padding:96px 0}
.section-alt{background:var(--alt)}
.section-deep{background:var(--brand-deep);color:#F3F7F4}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:40px}
.h1{font-size:44px;line-height:1.22;font-weight:800;letter-spacing:.01em}
.h2{font-size:32px;line-height:1.3;font-weight:700;letter-spacing:.01em}
.h3{font-size:20px;line-height:1.45;font-weight:600}
.h4{font-size:17px;line-height:1.5;font-weight:600}
.lead{font-size:16px;line-height:1.9;color:var(--text-2)}
.small{font-size:14px;color:var(--text-3);line-height:1.75}
.tiny{font-size:13px;color:var(--text-3)}
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--brand-active);transition:color var(--ease),gap var(--ease)}
.text-link:hover{color:var(--brand)}
.text-link .arrow{transition:transform var(--ease)}
.text-link:hover .arrow{transform:translateX(3px)}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:14px 28px;border-radius:var(--radius-btn);font-size:15px;font-weight:600;line-height:1;border:1px solid transparent;transition:background var(--ease),color var(--ease),border-color var(--ease),transform var(--ease),box-shadow var(--ease)}
.btn-primary{background:var(--brand);color:#fff}
.btn-primary:hover{background:var(--brand-hover);transform:translateY(-1px)}
.btn-primary:active{background:var(--brand-active);transform:translateY(0)}
.btn-ghost{background:#fff;color:var(--brand-deep);border-color:var(--border-strong)}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand-active)}
.btn-invert{background:#fff;color:var(--brand-deep)}
.btn-invert:hover{background:#E6F7F0}
.btn-outline-light{background:transparent;color:#F3F7F4;border-color:rgba(255,255,255,.28)}
.btn-outline-light:hover{border-color:#fff;background:rgba(255,255,255,.08)}
.btn[disabled]{opacity:.5;transform:none;pointer-events:none}

/* ---------- 徽章 ---------- */
.badge{display:inline-flex;align-items:center;gap:6px;padding:4px 12px;border-radius:999px;background:#E6F7F0;color:var(--brand-deep);font-size:12px;font-weight:600;line-height:1.6;white-space:nowrap}
.badge-accent{background:#FFEDE6;color:#C2410C}
.badge-soft{background:rgba(255,255,255,.14);color:#F3F7F4}

/* ---------- 头部导航 ---------- */
.site-header{position:sticky;top:0;z-index:80;background:rgba(255,255,255,.94);backdrop-filter:blur(10px);border-bottom:1px solid var(--border);transition:box-shadow var(--ease),background var(--ease)}
.site-header.is-scrolled{background:#fff;box-shadow:0 8px 26px -22px rgba(15,61,51,.6)}
.header-inner{display:flex;align-items:center;gap:24px;height:72px}
.logo{display:flex;align-items:center;gap:10px;flex:none}
.logo-mark{width:28px;height:28px;border-radius:8px;background:var(--brand);display:grid;place-items:center;flex:none}
.logo-mark svg{width:16px;height:16px}
.logo-name{display:block;font-size:18px;font-weight:700;letter-spacing:.01em;color:var(--brand-deep);line-height:1.25}
.logo-sub{display:block;font-size:12px;color:var(--text-3);line-height:1.3;margin-top:1px}
.main-nav{display:flex;align-items:stretch;gap:26px;height:72px;margin-right:auto}
.nav-link{position:relative;display:flex;align-items:center;font-size:15px;font-weight:500;color:var(--text-2);transition:color var(--ease)}
.nav-link:hover{color:var(--brand)}
.nav-link.active{color:var(--brand-deep);font-weight:700}
.nav-link.active::after{content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--brand);border-radius:2px}
.header-actions{display:flex;align-items:center;gap:12px;flex:none}
.mega-wrap{position:relative}
.mega-trigger{display:inline-flex;align-items:center;gap:6px;min-height:44px;padding:8px 12px;border-radius:var(--radius-btn);font-size:15px;font-weight:500;color:var(--text-2);transition:color var(--ease),background var(--ease)}
.mega-trigger:hover{color:var(--brand);background:#F1F7F3}
.mega-trigger svg{transition:transform var(--ease)}
.mega-wrap:hover .mega-trigger svg,.mega-wrap:focus-within .mega-trigger svg{transform:rotate(180deg)}
.mega-panel{position:absolute;right:0;top:calc(100% + 10px);width:720px;max-width:calc(100vw - 48px);background:#fff;border:1px solid var(--border);border-top:2px solid var(--brand);border-radius:var(--radius-card);box-shadow:var(--shadow-hover);padding:22px;z-index:90;opacity:0;visibility:hidden;transform:translateY(-6px);transition:opacity var(--ease),transform var(--ease),visibility var(--ease)}
.mega-wrap:hover .mega-panel,.mega-wrap:focus-within .mega-panel{opacity:1;visibility:visible;transform:translateY(0)}
.mega-grid{display:grid;grid-template-columns:1fr 1fr 1.15fr;gap:22px}
.mega-col-title{font-size:12px;font-weight:600;letter-spacing:.04em;color:var(--text-3);margin-bottom:12px}
.mega-item{display:flex;align-items:flex-start;gap:8px;padding:7px 0;font-size:14px;color:var(--text-2);transition:color var(--ease)}
.mega-item:hover{color:var(--brand)}
.mega-item .dot{width:6px;height:6px;border-radius:50%;background:var(--brand);margin-top:9px;flex:none}
.mega-news{display:block;padding:8px 0;border-bottom:1px dashed var(--border)}
.mega-news:last-child{border-bottom:0}
.mega-news-title{font-size:14px;font-weight:500;color:var(--text);display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;transition:color var(--ease)}
.mega-news:hover .mega-news-title{color:var(--brand)}
.mega-news-date{font-size:12px;color:var(--text-3)}
.mega-card{display:block;border:1px solid var(--border);border-radius:12px;overflow:hidden;transition:border-color var(--ease),box-shadow var(--ease)}
.mega-card:hover{border-color:var(--brand);box-shadow:var(--shadow-card)}
.mega-card img{width:100%;height:96px;object-fit:cover}
.mega-card-body{padding:10px 12px;display:flex;align-items:center;justify-content:space-between;gap:8px}
.mega-card-title{font-size:13px;font-weight:600;color:var(--text)}
.nav-toggle{display:none;width:44px;height:44px;align-items:center;justify-content:center;border:1px solid var(--border);border-radius:var(--radius-btn);color:var(--text-2)}
.nav-toggle:hover{border-color:var(--brand);color:var(--brand)}

/* 移动抽屉 */
.mobile-drawer{position:fixed;inset:0;z-index:120;display:none}
.mobile-drawer.open{display:block}
.drawer-overlay{position:absolute;inset:0;background:rgba(15,61,51,.45)}
.drawer-panel{position:absolute;top:0;right:0;bottom:0;width:92%;max-width:380px;background:#fff;padding:20px;display:flex;flex-direction:column;gap:18px;overflow-y:auto;box-shadow:-12px 0 40px -20px rgba(15,61,51,.5)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-bottom:16px;border-bottom:1px solid var(--border)}
.drawer-close{width:44px;height:44px;border-radius:var(--radius-btn);border:1px solid var(--border);display:grid;place-items:center;font-size:20px;color:var(--text-2)}
.drawer-close:hover{border-color:var(--brand);color:var(--brand)}
.drawer-nav{display:flex;flex-direction:column;gap:4px}
.drawer-link{position:relative;display:block;padding:13px 12px;border-radius:10px;font-size:16px;font-weight:500;color:var(--text-2)}
.drawer-link:hover{background:#F1F7F3;color:var(--brand-deep)}
.drawer-link.active{color:var(--brand-deep);font-weight:700;background:#F1F7F3}
.drawer-link.active::before{content:"";position:absolute;left:0;top:10px;bottom:10px;width:3px;border-radius:2px;background:var(--brand)}
.drawer-cta{margin-top:auto}

/* ---------- Hero ---------- */
.hero{position:relative;background-image:linear-gradient(160deg,rgba(15,61,51,.78),rgba(15,61,51,.66)),url('/assets/images/backpic/back-1.png');background-size:cover;background-position:center;color:#F3F7F4;border-bottom:1px solid rgba(255,255,255,.14);overflow:hidden}
.hero-inner{display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center;min-height:560px;padding:72px 0 64px}
.hero-eyebrow{display:inline-flex;align-items:center;gap:8px;padding:5px 14px;border-radius:999px;background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.2);font-size:13px;font-weight:500;color:#D9EFE6;margin-bottom:22px}
.hero-eyebrow .dot{width:6px;height:6px;border-radius:50%;background:var(--brand)}
.hero-title{font-size:44px;line-height:1.24;font-weight:800;letter-spacing:.01em;color:#FFFFFF}
.hero-sub{margin-top:20px;font-size:17px;line-height:1.85;color:#D8E7DF;max-width:540px}
.hero-actions{display:flex;flex-wrap:wrap;align-items:center;gap:16px;margin-top:32px}
.hero-actions .text-link{color:#C9F0E0}
.hero-actions .text-link:hover{color:#fff}
.trust-bar{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:44px;padding-top:26px;border-top:1px solid rgba(255,255,255,.16)}
.trust-num{font-size:24px;font-weight:700;color:var(--accent);line-height:1.3}
.trust-label{font-size:13px;color:#BFD6CB;line-height:1.6;margin-top:2px}
.hero-media{position:relative}
.hero-media img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--radius-card);border:1px solid rgba(255,255,255,.28);box-shadow:0 24px 60px -30px rgba(0,0,0,.7)}
.hero-float{position:absolute;left:-18px;bottom:28px;background:#fff;color:var(--text);border-radius:12px;padding:12px 16px;box-shadow:0 18px 40px -22px rgba(15,61,51,.8);display:flex;align-items:center;gap:12px}
.hero-float .num{font-size:22px;font-weight:700;color:var(--accent);line-height:1.2}
.hero-float .cap{font-size:12px;color:var(--text-3);line-height:1.4}

/* ---------- 功能分组 ---------- */
.feature-layout{display:grid;grid-template-columns:4fr 8fr;gap:32px;align-items:start}
.feature-sticky{position:sticky;top:104px}
.feature-sticky .quote{margin-top:18px;padding-left:16px;border-left:3px solid var(--brand);font-size:15px;line-height:1.9;color:var(--text-2)}
.feature-sticky .text-link{margin-top:20px}
.feature-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.feature-card{display:flex;flex-direction:column;background:#fff;border:1px solid var(--border);border-radius:var(--radius-card);padding:26px;box-shadow:var(--shadow-card);transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease)}
.feature-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:var(--border-strong)}
.feature-card.tall{grid-row:span 2}
.feature-icon{width:40px;height:40px;border-radius:10px;background:#E6F7F0;display:grid;place-items:center;color:var(--brand-active);margin-bottom:18px}
.feature-icon svg{width:22px;height:22px}
.feature-card .h3{margin-bottom:10px}
.feature-card p{font-size:15px;line-height:1.85;color:var(--text-2)}
.feature-card .text-link{margin-top:auto;padding-top:18px;font-size:14px}

/* ---------- 场景 ---------- */
.scene-list{display:flex;flex-direction:column;gap:48px}
.scene-item{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center}
.scene-item.flip .scene-media{order:2}
.scene-media img{width:100%;height:280px;object-fit:cover;border-radius:var(--radius-card);border:1px solid var(--border)}
.scene-body .h3{margin-bottom:12px}
.scene-body p{font-size:15.5px;line-height:1.9;color:var(--text-2)}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}

/* ---------- 案例 ---------- */
.case-layout{display:grid;grid-template-columns:1.5fr 1fr;gap:24px;align-items:stretch}
.case-main{display:flex;flex-direction:column;background:#fff;border:1px solid var(--border);border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-card);transition:transform var(--ease),box-shadow var(--ease)}
.case-main:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover)}
.case-main img{width:100%;height:220px;object-fit:cover}
.case-main-body{padding:24px;display:flex;flex-direction:column;gap:14px;flex:1}
.case-side{display:grid;gap:24px}
.case-mini{display:flex;gap:16px;padding:18px;background:#fff;border:1px solid var(--border);border-radius:var(--radius-card);box-shadow:var(--shadow-card);transition:transform var(--ease),box-shadow var(--ease)}
.case-mini:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover)}
.case-mini img{width:96px;height:96px;object-fit:cover;border-radius:10px;flex:none}
.case-mini-body .h4{margin-bottom:6px}
.case-mini-body p{font-size:13.5px;line-height:1.75;color:var(--text-3)}
.stat-row{display:flex;flex-wrap:wrap;gap:28px;padding-top:16px;border-top:1px dashed var(--border)}
.stat-num{font-size:28px;font-weight:700;color:var(--accent);line-height:1.2}
.stat-cap{font-size:13px;color:var(--text-3);line-height:1.5}

/* ---------- 最新信息 CMS ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.news-card{position:relative;display:flex;flex-direction:column;background:#fff;border:1px solid var(--border);border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-card);transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease)}
.news-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:var(--border-strong)}
.news-thumb{position:relative;aspect-ratio:16/9;background:var(--alt);overflow:hidden}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform var(--ease)}
.news-card:hover .news-thumb img{transform:scale(1.03)}
.news-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
.news-title{font-size:17px;line-height:1.5;font-weight:600;color:var(--text);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;transition:color var(--ease)}
.news-card:hover .news-title{color:var(--brand-active)}
.news-desc{font-size:14px;line-height:1.8;color:var(--text-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:10px;padding-top:12px;border-top:1px solid var(--border);font-size:13px;color:var(--text-3)}
.news-link{font-size:13px;font-weight:600;color:var(--brand-active)}
.news-card .stretched{position:absolute;inset:0;z-index:1}
.empty-box{border:1px dashed var(--border-strong);background:var(--bg);border-radius:var(--radius-card);padding:56px 24px;text-align:center;display:flex;flex-direction:column;align-items:center;gap:14px}
.empty-icon{width:48px;height:48px;border-radius:12px;background:#fff;border:1px solid var(--border);display:grid;place-items:center;color:var(--brand)}
.empty-box p{font-size:15px;color:var(--text-2)}

/* ---------- 价格 ---------- */
.price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:stretch}
.price-card{display:flex;flex-direction:column;background:#fff;border:1px solid var(--border);border-radius:var(--radius-card);padding:28px;box-shadow:var(--shadow-card);transition:transform var(--ease),box-shadow var(--ease)}
.price-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover)}
.price-card.featured{background:var(--brand-deep);color:#F3F7F4;border-color:transparent;transform:scale(1.03)}
.price-card.featured:hover{transform:scale(1.03) translateY(-3px)}
.price-name{font-size:17px;font-weight:600}
.price-amount{display:flex;align-items:flex-end;gap:8px;margin-top:14px}
.price-num{font-size:36px;font-weight:700;line-height:1.1;color:var(--brand-active)}
.price-card.featured .price-num{color:#7DE8C0}
.price-unit{font-size:13px;color:var(--text-3);padding-bottom:6px}
.price-card.featured .price-unit{color:#BFD6CB}
.price-note{font-size:14px;line-height:1.8;color:var(--text-2);margin-top:10px}
.price-card.featured .price-note{color:#CFE3DA}
.price-list{margin:22px 0 26px;padding-top:20px;border-top:1px solid var(--border);display:grid;gap:12px;flex:1}
.price-card.featured .price-list{border-top-color:rgba(255,255,255,.16)}
.price-list li{display:flex;align-items:flex-start;gap:10px;font-size:14.5px;line-height:1.7;color:var(--text-2)}
.price-card.featured .price-list li{color:#DCEAE3}
.price-list .tick{width:16px;height:16px;flex:none;margin-top:5px;color:var(--brand)}
.price-card.featured .price-list .tick{color:#7DE8C0}
.price-foot{margin-top:18px;font-size:13px;color:var(--text-3);display:flex;align-items:center;gap:8px}
.price-card.featured .price-foot{color:#BFD6CB}

/* ---------- FAQ ---------- */
.faq-list{max-width:880px;margin:0 auto;display:grid;gap:12px}
.faq-item{background:#fff;border:1px solid var(--border);border-radius:12px;overflow:hidden;transition:border-color var(--ease),box-shadow var(--ease)}
.faq-item[open]{border-color:var(--border-strong);box-shadow:var(--shadow-card)}
.faq-item summary{list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:18px 20px;font-size:16px;font-weight:600;color:var(--text)}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--brand-active)}
.faq-icon{width:16px;height:16px;flex:none;position:relative;transition:transform var(--ease),color var(--ease);color:var(--text-3)}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:currentColor;border-radius:2px}
.faq-icon::before{left:0;right:0;top:7px;height:2px}
.faq-icon::after{top:0;bottom:0;left:7px;width:2px;transition:opacity var(--ease)}
.faq-item[open] .faq-icon{transform:rotate(180deg);color:var(--brand)}
.faq-item[open] .faq-icon::after{opacity:0}
.faq-answer{padding:16px 20px 20px;font-size:15px;line-height:1.9;color:var(--text-2);border-top:1px dashed var(--border)}

/* ---------- CTA 条 ---------- */
.cta-band{background:var(--brand-deep);border-radius:var(--radius-block);padding:44px 48px;display:flex;align-items:center;justify-content:space-between;gap:32px;color:#F3F7F4}
.cta-band .h2{color:#fff;max-width:640px}
.cta-band p{margin-top:12px;font-size:15px;line-height:1.85;color:#CFE3DA;max-width:640px}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--brand-deep);color:#E8F1EC;padding:72px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.4fr;gap:40px;padding-bottom:48px}
.footer-brand .logo-name{color:#fff;font-size:18px}
.footer-brand .logo-sub{color:#9FBDB0}
.footer-desc{margin-top:16px;font-size:14px;line-height:1.9;color:#BFD6CB;max-width:320px}
.footer-meta{margin-top:18px;display:grid;gap:6px;font-size:13.5px;color:#9FBDB0}
.footer-title{font-size:14px;font-weight:600;color:rgba(255,255,255,.66);margin-bottom:16px}
.footer-link{display:block;font-size:14px;color:#DCEAE3;padding:5px 0;transition:color var(--ease),transform var(--ease)}
.footer-link:hover{color:var(--brand);transform:translateX(1px)}
.footer-form{display:grid;gap:10px;margin-top:4px}
.footer-label{font-size:13px;color:#9FBDB0}
.footer-input{width:100%;height:44px;padding:0 14px;border-radius:10px;border:1px solid rgba(255,255,255,.18);background:rgba(255,255,255,.06);color:#fff;font-size:14px;transition:border-color var(--ease),box-shadow var(--ease)}
.footer-input::placeholder{color:#8FAC9F}
.footer-input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(23,192,138,.22)}
.footer-hint{font-size:12.5px;color:#8FAC9F;line-height:1.7}
.footer-bottom{border-top:1px solid rgba(255,255,255,.14);padding:20px 0 28px;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;font-size:12.5px;color:#9FBDB0}
.footer-bottom a:hover{color:var(--brand)}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  .container{padding:0 24px}
  .section{padding:72px 0}
  .h1,.hero-title{font-size:34px}
  .h2{font-size:26px}
  .h3{font-size:19px}
  .main-nav,.mega-wrap,.header-cta{display:none}
  .nav-toggle{display:inline-flex}
  .header-actions{margin-left:auto}
  .hero-inner{grid-template-columns:1fr;gap:36px;min-height:0;padding:56px 0 52px}
  .hero-media img{aspect-ratio:16/9}
  .hero-float{left:16px;bottom:16px}
  .feature-layout{grid-template-columns:1fr;gap:28px}
  .feature-sticky{position:static}
  .feature-card.tall{grid-row:auto}
  .case-layout{grid-template-columns:1fr}
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .price-grid{grid-template-columns:1fr}
  .price-card.featured{transform:none}
  .price-card.featured:hover{transform:translateY(-3px)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .cta-band{flex-direction:column;align-items:flex-start;padding:36px}
}
@media (max-width:767px){
  .container{padding:0 20px}
  .section{padding:56px 0}
  .h1,.hero-title{font-size:30px}
  .h2{font-size:24px}
  .h3{font-size:18px}
  .hero-sub{font-size:15.5px}
  .trust-bar{grid-template-columns:1fr 1fr;gap:16px;margin-top:32px}
  .feature-grid{grid-template-columns:1fr}
  .scene-item{grid-template-columns:1fr;gap:20px}
  .scene-item.flip .scene-media{order:0}
  .scene-media img{height:220px}
  .case-mini{flex-direction:column}
  .case-mini img{width:100%;height:150px}
  .news-grid{grid-template-columns:1fr}
  .cta-band{padding:28px 24px;border-radius:16px}
  .cta-band .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-desc{max-width:none}
  .section-head{margin-bottom:28px}
}
@media (max-width:520px){
  .hero-actions .btn{width:100%}
  .hero-actions{flex-direction:column;align-items:stretch}
  .hero-actions .text-link{justify-content:center}
  .case-main img{height:180px}
  .stat-row{gap:20px}
}

/* roulang page: category1 */
:root{
  --brand:#0F3D33;
  --green:#17C08A;
  --green-dark:#12A876;
  --green-deep:#0E8D62;
  --accent:#FF7A45;
  --accent-soft:#FFEDE6;
  --gold:#FFD166;
  --bg:#F6F4EF;
  --surface:#FFFFFF;
  --alt:#EDF2EE;
  --text:#16211D;
  --text-2:#4A5A54;
  --text-3:#7C8B85;
  --line:#E1E6E2;
  --line-strong:#C9D8CF;
  --invert:#F3F7F4;
  --r-card:14px;
  --r-block:20px;
  --r-btn:10px;
  --r-tag:999px;
  --shadow-card:0 1px 2px rgba(15,61,51,.06), 0 8px 24px -14px rgba(15,61,51,.20);
  --shadow-hover:0 10px 30px -14px rgba(15,61,51,.30);
  --ease:200ms ease-out;
  --font: system-ui, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,figure,ul,ol{margin:0}
ul,ol{padding:0;list-style:none}
a{color:inherit;text-decoration:none;transition:color var(--ease)}
img{max-width:100%;display:block}
button{font-family:inherit;font-size:inherit;cursor:pointer;border:0;background:none;color:inherit}
input{font-family:inherit;font-size:inherit}
:focus-visible{outline:2px solid var(--green);outline-offset:2px;border-radius:6px}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
.section{padding:96px 0}
.section--alt{background:var(--alt)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px}
.section-title{font-size:32px;line-height:1.32;font-weight:700;letter-spacing:0;color:var(--text)}
.section-desc{margin-top:12px;font-size:15px;color:var(--text-2);max-width:640px}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:60;background:#fff;border-bottom:1px solid var(--line);transition:box-shadow var(--ease)}
.site-header.is-scrolled{box-shadow:0 8px 24px -18px rgba(15,61,51,.45)}
.header-inner{display:flex;align-items:center;gap:28px;height:72px}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0}
.logo-mark{width:28px;height:28px;border-radius:8px;background:var(--green);display:grid;place-items:center;flex-shrink:0}
.logo-mark svg{width:18px;height:18px}
.logo-name{display:block;font-size:18px;font-weight:700;line-height:1.25;color:var(--text)}
.logo-sub{display:block;font-size:12px;line-height:1.3;color:var(--text-3)}
.main-nav{display:flex;align-items:center;gap:2px;margin-left:6px}
.nav-link{position:relative;display:inline-flex;align-items:center;height:38px;padding:0 12px;border-radius:8px;font-size:15px;font-weight:500;color:var(--text-2)}
.nav-link:hover{color:var(--green)}
.nav-link.active{color:var(--text);font-weight:600}
.nav-link.active::after{content:"";position:absolute;left:12px;right:12px;bottom:-17px;height:2px;border-radius:2px;background:var(--green)}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:12px}

.mega-wrap{position:relative}
.mega-trigger{display:inline-flex;align-items:center;gap:6px;height:40px;padding:0 12px;border-radius:8px;font-size:15px;font-weight:500;color:var(--text-2);transition:color var(--ease),background var(--ease)}
.mega-trigger:hover{color:var(--green);background:#F1F6F2}
.mega-panel{
  position:absolute;top:calc(100% + 16px);right:0;
  width:720px;max-width:calc(100vw - 48px);
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:0 18px 44px -22px rgba(15,61,51,.42);
  padding:26px 24px 24px;
  opacity:0;visibility:hidden;transform:translateY(-6px);
  transition:opacity var(--ease),transform var(--ease),visibility var(--ease);
}
.mega-panel::before{content:"";position:absolute;top:0;left:0;right:0;height:2px;background:var(--green);border-radius:14px 14px 0 0}
.mega-wrap:hover .mega-panel,
.mega-wrap:focus-within .mega-panel{opacity:1;visibility:visible;transform:translateY(0)}
.mega-grid{display:grid;grid-template-columns:1fr 1fr 1.15fr;gap:24px}
.mega-col-title{font-size:13px;font-weight:600;color:var(--text-3);letter-spacing:.02em;margin-bottom:12px}
.mega-item{display:flex;align-items:center;gap:8px;padding:7px 0;font-size:14px;color:var(--text-2)}
.mega-item:hover{color:var(--green)}
.dot{width:6px;height:6px;border-radius:50%;background:var(--green);flex-shrink:0}
.mega-news{display:block;padding:7px 0;border-bottom:1px dashed var(--line)}
.mega-news:last-child{border-bottom:0}
.mega-news-title{display:block;font-size:14px;color:var(--text);line-height:1.5}
.mega-news:hover .mega-news-title{color:var(--green)}
.mega-news-date{display:block;font-size:12px;color:var(--text-3)}
.mega-card{display:block;border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;background:#fff;transition:border-color var(--ease),box-shadow var(--ease)}
.mega-card:hover{border-color:var(--line-strong);box-shadow:var(--shadow-card)}
.mega-card img{width:100%;aspect-ratio:16/9;object-fit:cover;background:var(--alt)}
.mega-card-body{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:12px 14px}
.mega-card-title{font-size:14px;font-weight:600;color:var(--text)}
.mega-card-arrow{font-size:15px;color:var(--green)}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:44px;padding:0 24px;border-radius:var(--r-btn);font-size:15px;font-weight:600;border:1px solid transparent;transition:background var(--ease),color var(--ease),border-color var(--ease),transform var(--ease),box-shadow var(--ease);white-space:nowrap}
.btn-primary{background:var(--green);color:#fff}
.btn-primary:hover{background:var(--green-dark);transform:translateY(-1px)}
.btn-primary:active{background:var(--green-deep);transform:none}
.btn-ghost{background:#fff;color:var(--brand);border-color:var(--line-strong)}
.btn-ghost:hover{border-color:var(--green);color:var(--green-deep)}
.btn-invert{background:#fff;color:var(--brand)}
.btn-invert:hover{background:#EAF6F0;transform:translateY(-1px)}
.btn-text{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--green-deep)}
.btn-text span{transition:transform var(--ease)}
.btn-text:hover span{transform:translateX(3px)}
.btn[disabled],.btn.is-disabled{opacity:.5;pointer-events:none}

/* ---------- badges ---------- */
.badge{display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--r-tag);background:#E6F7F0;color:var(--green-deep);font-size:12px;font-weight:600;line-height:1}
.badge-accent{background:var(--accent-soft);color:#C2410C}
.badge-light{background:rgba(255,255,255,.14);color:#EAF6F0;border:1px solid rgba(255,255,255,.24)}
.tag{display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--r-tag);background:#F1F6F2;border:1px solid var(--line);color:var(--text-2);font-size:12.5px}

/* ---------- crumb ---------- */
.crumb-bar{background:#fff;border-bottom:1px solid var(--line)}
.crumb{display:flex;align-items:center;gap:8px;flex-wrap:wrap;padding:14px 0;font-size:13px;color:var(--text-3)}
.crumb a{color:var(--text-2)}
.crumb a:hover{color:var(--green)}
.crumb .sep{color:var(--line-strong)}
.crumb .current{color:var(--text-3)}

/* ---------- banner ---------- */
.page-banner{
  position:relative;display:flex;align-items:center;min-height:320px;padding:56px 0;
  color:var(--invert);
  background-image:linear-gradient(rgba(15,61,51,.72), rgba(15,61,51,.78)), url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;background-repeat:no-repeat;
}
.page-banner h1{font-size:44px;line-height:1.24;font-weight:800;letter-spacing:0;margin:18px 0 14px;color:#fff}
.page-banner p{font-size:16px;line-height:1.8;color:#D8E6DF;max-width:620px}
.banner-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}

/* ---------- card grid ---------- */
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.card{
  position:relative;display:flex;flex-direction:column;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--shadow-card);overflow:hidden;
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:var(--line-strong)}
.card-img{width:100%;aspect-ratio:16/9;object-fit:cover;background:var(--alt)}
.card-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
.card-title{font-size:20px;line-height:1.4;font-weight:600;color:var(--text)}
.card:hover .card-title{color:var(--green-deep)}
.card-text{font-size:14.5px;line-height:1.85;color:var(--text-2)}
.card-foot{margin-top:auto;padding-top:14px;border-top:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:12px}
.card-meta{font-size:12.5px;color:var(--text-3)}
.card-link{font-size:14px;font-weight:600;color:var(--green-deep);display:inline-flex;align-items:center;gap:4px}
.card-link span{transition:transform var(--ease)}
.card:hover .card-link span{transform:translateX(3px)}

.card--feature{grid-column:span 2;flex-direction:row}
.card--feature .card-figure{flex:0 0 44%;position:relative}
.card--feature .card-figure img{width:100%;height:100%;object-fit:cover;background:var(--alt)}
.card--feature .card-body{padding:28px;gap:14px;justify-content:center}
.card--feature .card-title{font-size:24px}

.card--cta{grid-column:span 2;flex-direction:row;align-items:center;justify-content:space-between;gap:28px;background:var(--brand);border-color:var(--brand);padding:32px;color:var(--invert)}
.card--cta h3{font-size:22px;font-weight:700;color:#fff;line-height:1.4}
.card--cta p{margin-top:8px;font-size:14.5px;color:#CFE2D9;line-height:1.8;max-width:460px}

/* ---------- core points ---------- */
.core{display:grid;grid-template-columns:4fr 8fr;gap:56px;align-items:start}
.core-side h2{font-size:32px;line-height:1.32;font-weight:700}
.core-side p{margin-top:14px;font-size:15px;color:var(--text-2);line-height:1.9}
.core-side .btn-text{margin-top:20px}
.point{display:grid;grid-template-columns:44px 1fr;gap:16px;padding:22px 0;border-top:1px solid var(--line)}
.point:first-child{border-top:1px solid var(--line-strong)}
.point-num{font-size:20px;font-weight:700;color:var(--accent);line-height:1.5;font-variant-numeric:tabular-nums}
.point h3{font-size:17px;font-weight:600;line-height:1.5;color:var(--text)}
.point p{margin-top:6px;font-size:14.5px;line-height:1.85;color:var(--text-2)}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:880px;margin:0 auto}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:12px;margin-bottom:12px;overflow:hidden;transition:border-color var(--ease),box-shadow var(--ease)}
.faq-item:hover{border-color:var(--line-strong)}
.faq-item[open]{border-color:var(--line-strong);box-shadow:var(--shadow-card)}
.faq-item summary{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:18px 20px;font-size:16px;font-weight:600;line-height:1.6;color:var(--text);cursor:pointer;list-style:none}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";font-size:22px;line-height:1;font-weight:400;color:var(--text-3);transition:color var(--ease),transform var(--ease);flex-shrink:0}
.faq-item[open] summary::after{content:"−";color:var(--green);transform:rotate(180deg)}
.faq-item[open] summary{color:var(--green-deep)}
.faq-body{padding:16px 20px 20px;border-top:1px dashed var(--line);font-size:15px;line-height:1.9;color:var(--text-2)}

/* ---------- CTA band ---------- */
.cta-band{
  display:flex;align-items:center;justify-content:space-between;gap:36px;
  background:var(--brand);color:var(--invert);
  border-radius:var(--r-block);padding:44px 48px;
}
.cta-band h2{font-size:30px;line-height:1.35;font-weight:700;color:#fff}
.cta-band p{margin-top:10px;font-size:15px;color:#CFE2D9;max-width:560px}

/* ---------- related ---------- */
.rel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.rel-card{display:flex;flex-direction:column;gap:12px;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:24px;transition:border-color var(--ease),transform var(--ease),box-shadow var(--ease)}
.rel-card:hover{border-color:var(--green);transform:translateY(-3px);box-shadow:var(--shadow-card)}
.rel-card h3{font-size:18px;font-weight:600;color:var(--text)}
.rel-card p{font-size:14px;color:var(--text-2);line-height:1.8}
.rel-card .card-link{margin-top:auto}

/* ---------- footer ---------- */
.site-footer{background:var(--brand);color:#E8F1EC;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1.35fr;gap:40px;padding:72px 0 48px}
.footer-brand .logo-name{color:#fff}
.footer-brand .logo-sub{color:rgba(232,241,236,.62)}
.footer-desc{margin-top:16px;font-size:14px;line-height:1.9;color:rgba(232,241,236,.78);max-width:320px}
.footer-meta{margin-top:16px;display:flex;flex-direction:column;gap:6px;font-size:13px;color:rgba(232,241,236,.62)}
.footer-title{font-size:14px;font-weight:600;color:rgba(255,255,255,.62);margin-bottom:14px}
.footer-link{display:block;font-size:14px;color:#E8F1EC;padding:6px 0;transition:color var(--ease),transform var(--ease)}
.footer-link:hover{color:var(--green);transform:translateX(2px)}
.footer-form{display:flex;flex-direction:column;gap:10px}
.footer-label{font-size:13px;color:rgba(232,241,236,.7)}
.footer-input{height:44px;border-radius:var(--r-btn);border:1px solid rgba(255,255,255,.22);background:rgba(255,255,255,.06);color:#fff;padding:0 14px;transition:border-color var(--ease),box-shadow var(--ease)}
.footer-input::placeholder{color:rgba(232,241,236,.45)}
.footer-input:focus{outline:none;border-color:var(--green);box-shadow:0 0 0 3px rgba(23,192,138,.24)}
.footer-hint{font-size:12.5px;line-height:1.7;color:rgba(232,241,236,.55)}
.footer-bottom{border-top:1px solid rgba(255,255,255,.14);padding:20px 0 28px;display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:12.5px;color:rgba(232,241,236,.58)}

/* ---------- mobile drawer ---------- */
.nav-toggle{display:none;width:44px;height:44px;border-radius:10px;border:1px solid var(--line);background:#fff;align-items:center;justify-content:center;flex-direction:column;gap:5px}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--text);transition:transform var(--ease),opacity var(--ease)}
.drawer{
  position:fixed;inset:0 0 0 auto;width:92vw;max-width:380px;background:#fff;z-index:120;
  transform:translateX(100%);transition:transform 240ms ease-out;
  display:flex;flex-direction:column;box-shadow:-24px 0 48px -30px rgba(15,61,51,.6);
}
.drawer.open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;border-bottom:1px solid var(--line)}
.drawer-close{width:44px;height:44px;border-radius:10px;display:grid;place-items:center;font-size:20px;color:var(--text-2);border:1px solid var(--line)}
.drawer-close:hover{color:var(--green);border-color:var(--line-strong)}
.drawer-nav{padding:12px 20px;display:flex;flex-direction:column;flex:1;overflow-y:auto}
.drawer-link{display:flex;align-items:center;min-height:52px;font-size:16px;font-weight:500;color:var(--text-2);border-bottom:1px solid var(--line);padding-left:12px;border-left:3px solid transparent}
.drawer-link.active{color:var(--green-deep);font-weight:600;border-left-color:var(--green)}
.drawer-cta{padding:16px 20px 24px;border-top:1px solid var(--line)}
.drawer-cta .btn{width:100%}
.drawer-mask{position:fixed;inset:0;background:rgba(15,61,51,.45);z-index:110;opacity:0;visibility:hidden;transition:opacity var(--ease),visibility var(--ease)}
.drawer-mask.open{opacity:1;visibility:visible}

/* ---------- responsive ---------- */
@media (max-width:1280px){
  .container{padding:0 28px}
}
@media (max-width:1024px){
  .container{padding:0 24px}
  .section{padding:72px 0}
  .main-nav,.mega-wrap{display:none}
  .nav-toggle{display:flex}
  .header-inner{height:64px;gap:16px}
  .page-banner h1{font-size:34px}
  .card-grid{grid-template-columns:repeat(2,1fr)}
  .card--feature{grid-column:span 2;flex-direction:column}
  .card--feature .card-figure{flex:none}
  .card--feature .card-figure img{aspect-ratio:16/9;height:auto}
  .card--cta{grid-column:span 2}
  .core{grid-template-columns:1fr;gap:32px}
  .rel-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;padding:56px 0 40px}
  .cta-band{padding:36px;flex-direction:column;align-items:flex-start}
}
@media (max-width:768px){
  body{font-size:15.5px}
  .section{padding:56px 0}
  .section-title{font-size:24px}
  .page-banner{min-height:240px;padding:40px 0}
  .page-banner h1{font-size:30px}
  .card-grid{grid-template-columns:1fr}
  .card--feature,.card--cta{grid-column:span 1}
  .card--cta{flex-direction:column;align-items:flex-start;gap:20px;padding:24px}
  .rel-grid{grid-template-columns:1fr}
  .cta-band{padding:28px}
  .cta-band h2{font-size:22px}
  .cta-band .btn{width:100%;margin-top:8px}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;gap:8px}
  .point{grid-template-columns:34px 1fr;gap:12px}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px}
}
@media (max-width:520px){
  .container{padding:0 20px}
  .page-banner h1{font-size:27px}
  .card--feature .card-body{padding:20px}
  .faq-item summary{font-size:15px;padding:16px}
}
@media (prefers-reduced-motion:reduce){
  *{transition-duration:.01ms !important;animation-duration:.01ms !important}
}

/* roulang page: article */
:root{
  --brand-deep:#0F3D33;
  --brand:#17C08A;
  --brand-hover:#12A876;
  --brand-active:#0E8D62;
  --accent:#FF7A45;
  --accent-soft:#FFD166;
  --accent-ink:#C2410C;
  --bg:#F6F4EF;
  --card:#FFFFFF;
  --alt:#EDF2EE;
  --text:#16211D;
  --text-2:#4A5A54;
  --text-3:#7C8B85;
  --border:#E1E6E2;
  --border-strong:#C9D8CF;
  --radius-card:14px;
  --radius-lg:20px;
  --radius-btn:10px;
  --shadow:0 1px 2px rgba(15,61,51,.06),0 8px 24px -14px rgba(15,61,51,.20);
  --shadow-hover:0 10px 30px -14px rgba(15,61,51,.30);
  --ease:200ms ease-out;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:96px;}
body{
  margin:0;
  font-family:system-ui,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  background:var(--bg);
  color:var(--text);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
body.no-scroll{overflow:hidden;}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;}
h1,h2,h3,h4,p,ul,ol,figure,blockquote,dl,dd{margin:0;}
ul,ol{list-style:none;padding:0;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px;}

/* ---------- 容器 ---------- */
body .container{
  width:100%;
  max-width:1200px;
  margin-left:auto;
  margin-right:auto;
  padding-left:32px;
  padding-right:32px;
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  font-size:15px;
  font-weight:600;
  line-height:1.2;
  padding:14px 28px;
  border-radius:var(--radius-btn);
  border:1px solid transparent;
  cursor:pointer;
  transition:var(--ease);
  white-space:nowrap;
}
.btn-primary{background:var(--brand);color:#fff;}
.btn-primary:hover{background:var(--brand-hover);transform:translateY(-1px);}
.btn-primary:active{background:var(--brand-active);transform:none;}
.btn-ghost{background:#fff;color:var(--brand-deep);border-color:var(--border-strong);}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand-hover);transform:translateY(-1px);}
.btn-light{background:#fff;color:var(--brand-deep);}
.btn-light:hover{background:#F3F7F4;transform:translateY(-1px);}
.btn:disabled,.btn[aria-disabled="true"]{opacity:.5;transform:none;cursor:not-allowed;}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:#fff;
  border-bottom:1px solid var(--border);
}
.header-inner{
  display:flex;
  align-items:center;
  gap:32px;
  height:72px;
}
.logo{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.logo-mark{
  width:28px;height:28px;border-radius:8px;
  background:var(--brand);
  display:flex;align-items:center;justify-content:center;
  flex:0 0 auto;
}
.logo-mark svg{width:16px;height:16px;}
.logo-name{display:block;font-size:18px;font-weight:700;color:var(--brand-deep);line-height:1.2;}
.logo-sub{display:block;font-size:12px;color:var(--text-3);line-height:1.3;}
.main-nav{display:flex;align-items:center;gap:28px;margin-right:auto;}
.nav-link{
  position:relative;
  display:inline-block;
  font-size:15px;
  font-weight:500;
  color:var(--text-2);
  padding:26px 0;
  line-height:1.2;
  transition:var(--ease);
}
.nav-link:hover{color:var(--brand);}
.nav-link.active{color:var(--brand-deep);font-weight:700;}
.nav-link.active::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:16px;
  height:2px;border-radius:2px;
  background:var(--brand);
}
.header-actions{display:flex;align-items:center;gap:14px;flex:0 0 auto;}
.header-cta{padding:10px 20px;font-size:14px;}
.mega-wrap{position:relative;}
.mega-trigger{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:500;color:var(--text-2);
  padding:9px 12px;border:1px solid transparent;border-radius:var(--radius-btn);
  background:transparent;cursor:pointer;transition:var(--ease);
}
.mega-trigger:hover{color:var(--brand);background:var(--alt);}
.mega-trigger svg{transition:var(--ease);}
.mega-wrap:hover .mega-trigger svg,
.mega-wrap:focus-within .mega-trigger svg{transform:rotate(180deg);}
.mega-panel{
  position:absolute;
  top:calc(100% + 12px);
  right:0;
  width:720px;
  max-width:calc(100vw - 48px);
  background:#fff;
  border:1px solid var(--border);
  border-top:2px solid var(--brand);
  border-radius:var(--radius-card);
  box-shadow:0 24px 60px -26px rgba(15,61,51,.38);
  padding:22px;
  opacity:0;
  visibility:hidden;
  transform:translateY(-6px);
  transition:opacity .2s ease-out,transform .2s ease-out,visibility .2s;
}
.mega-wrap:hover .mega-panel,
.mega-wrap:focus-within .mega-panel{opacity:1;visibility:visible;transform:translateY(0);}
.mega-grid{display:grid;grid-template-columns:1fr 1fr 200px;gap:22px;}
.mega-col-title{font-size:12px;font-weight:600;letter-spacing:.02em;color:var(--text-3);margin-bottom:10px;}
.mega-item{
  display:flex;align-items:center;gap:8px;
  font-size:14px;color:var(--text-2);
  padding:7px 0;transition:var(--ease);
}
.mega-item:hover{color:var(--brand);}
.mega-item .dot{width:6px;height:6px;border-radius:50%;background:var(--brand);flex:0 0 auto;}
.mega-news{
  display:block;padding:8px 0;border-bottom:1px dashed var(--border);
  transition:var(--ease);
}
.mega-news:last-child{border-bottom:0;}
.mega-news-title{display:block;font-size:13.5px;color:var(--text);line-height:1.5;}
.mega-news-date{display:block;font-size:12px;color:var(--text-3);margin-top:2px;}
.mega-news:hover .mega-news-title{color:var(--brand);}
.mega-card{
  position:relative;display:block;overflow:hidden;
  border:1px solid var(--border);border-radius:12px;background:var(--alt);
}
.mega-card img{width:100%;height:104px;object-fit:cover;transition:var(--ease);}
.mega-card:hover img{transform:scale(1.04);}
.mega-card-title{display:block;padding:10px 12px;font-size:13.5px;font-weight:600;color:var(--brand-deep);}
.mega-card-arrow{position:absolute;right:12px;bottom:12px;color:var(--brand);font-size:14px;transition:var(--ease);}
.mega-card:hover .mega-card-arrow{transform:translateX(3px);}

/* 移动端开关 */
.nav-toggle{
  display:none;
  width:44px;height:44px;
  align-items:center;justify-content:center;
  border:1px solid var(--border);border-radius:var(--radius-btn);
  background:#fff;cursor:pointer;
  flex-direction:column;gap:4px;
  transition:var(--ease);
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--text-2);transition:var(--ease);}
.nav-toggle:hover{border-color:var(--brand);}
.nav-toggle:hover span{background:var(--brand);}

/* 抽屉 */
.drawer-mask{
  position:fixed;inset:0;z-index:110;
  background:rgba(15,61,51,.45);
  opacity:0;visibility:hidden;transition:var(--ease);
}
.drawer-mask.open{opacity:1;visibility:visible;}
.mobile-drawer{
  position:fixed;top:0;right:0;bottom:0;z-index:120;
  width:min(92vw,360px);
  background:#fff;
  padding:20px;
  display:flex;flex-direction:column;
  overflow-y:auto;
  transform:translateX(100%);
  transition:transform .28s ease-out;
}
.mobile-drawer.open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:16px;border-bottom:1px solid var(--border);}
.drawer-close{
  width:40px;height:40px;border-radius:10px;
  border:1px solid var(--border);background:#fff;color:var(--text-2);
  display:flex;align-items:center;justify-content:center;cursor:pointer;transition:var(--ease);
}
.drawer-close:hover{border-color:var(--brand);color:var(--brand);}
.drawer-nav{margin-top:8px;flex:1;}
.drawer-link{
  display:block;padding:14px 4px;
  font-size:16px;color:var(--text);
  border-bottom:1px solid var(--border);
  transition:var(--ease);
}
.drawer-link:hover{color:var(--brand);}
.drawer-link.active{
  color:var(--brand-deep);font-weight:700;
  border-left:3px solid var(--brand);padding-left:12px;
}
.drawer-cta{margin-top:20px;}

/* ---------- 文章头部 ---------- */
.article-head{background:#fff;padding:24px 0 0;}
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--text-3);
}
.breadcrumb a{color:var(--text-2);transition:var(--ease);}
.breadcrumb a:hover{color:var(--brand);}
.breadcrumb .sep{color:var(--border-strong);}
.breadcrumb .current{color:var(--text-3);}
.badge-row{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin-top:26px;}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:999px;
  background:#E6F7F0;color:var(--brand-deep);
  font-size:12px;font-weight:600;line-height:1.6;
}
.badge-accent{background:#FFEDE6;color:var(--accent-ink);}
.badge-soft{background:#EDF2EE;color:var(--text-2);}
.article-head h1{
  font-size:36px;
  font-weight:800;
  line-height:1.35;
  letter-spacing:0;
  color:var(--brand-deep);
  margin:18px 0 16px;
  max-width:960px;
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  font-size:13.5px;color:var(--text-3);
  padding-bottom:26px;
}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:var(--border-strong);}
.article-meta strong{color:var(--text-2);font-weight:600;}

/* ---------- 封面 ---------- */
.cover-section{background:#fff;padding:28px 0 0;}
.cover-figure{
  margin:0;
  border-radius:var(--radius-card);
  overflow:hidden;
  border:1px solid var(--border);
  box-shadow:var(--shadow);
  background:var(--alt);
}
.cover-figure img{width:100%;aspect-ratio:16/9;object-fit:cover;}

/* ---------- 正文双栏 ---------- */
.article-main-section{background:#fff;padding:44px 0 80px;}
.article-layout{
  display:grid;
  grid-template-columns:minmax(0,780px) 300px;
  gap:48px;
  align-items:start;
  justify-content:space-between;
}
.article-main{min-width:0;}

.prose{
  font-size:17px;
  line-height:1.9;
  color:var(--text);
  overflow-wrap:anywhere;
  word-break:break-word;
}
.prose p{margin:0 0 1.2em;color:var(--text);}
.prose h2{
  position:relative;
  font-size:26px;font-weight:700;line-height:1.45;
  color:var(--brand-deep);
  margin:40px 0 16px;
  padding-left:14px;
}
.prose h2::before{
  content:"";position:absolute;left:0;top:6px;
  width:4px;height:20px;border-radius:2px;background:var(--brand);
}
.prose h3{font-size:20px;font-weight:600;line-height:1.55;color:var(--text);margin:28px 0 12px;}
.prose h4{font-size:17px;font-weight:600;line-height:1.6;color:var(--text);margin:22px 0 10px;}
.prose ul,.prose ol{list-style:revert;padding-left:1.35em;margin:0 0 1.2em;}
.prose li{margin:0 0 .55em;line-height:1.85;}
.prose ul li::marker{color:var(--brand);}
.prose ol li::marker{color:var(--brand);font-weight:600;}
.prose a{color:var(--brand-hover);text-decoration:underline;text-underline-offset:3px;}
.prose a:hover{color:var(--brand-active);}
.prose strong{font-weight:700;color:var(--brand-deep);}
.prose blockquote{
  margin:24px 0;padding:16px 20px;
  background:var(--bg);
  border-left:3px solid var(--brand);
  border-radius:0 12px 12px 0;
  color:var(--text-2);
}
.prose blockquote p:last-child{margin-bottom:0;}
.prose img{border-radius:12px;margin:24px auto;}
.prose figure{margin:24px 0;}
.prose figcaption{font-size:13px;color:var(--text-3);text-align:center;margin-top:10px;}
.prose table{width:100%;border-collapse:collapse;margin:24px 0;font-size:15px;}
.prose th,.prose td{border:1px solid var(--border);padding:12px 16px;text-align:left;vertical-align:top;}
.prose th{background:var(--alt);font-weight:600;color:var(--brand-deep);}
.prose hr{border:0;border-top:1px dashed var(--border);margin:32px 0;}
.prose code{background:var(--alt);border-radius:6px;padding:2px 6px;font-size:14px;}

/* 标签与分享 */
.tag-row{
  display:flex;flex-wrap:wrap;gap:8px;
  margin-top:40px;padding-top:24px;
  border-top:1px dashed var(--border);
}
.tag{
  display:inline-block;
  padding:6px 12px;border-radius:999px;
  background:var(--alt);color:var(--text-2);
  font-size:13px;transition:var(--ease);
}
.tag:hover{background:#E6F7F0;color:var(--brand-deep);}
.share-row{
  display:flex;flex-wrap:wrap;align-items:center;gap:12px;
  margin-top:22px;font-size:13px;color:var(--text-3);
}
.share-btn{
  width:36px;height:36px;border-radius:10px;
  border:1px solid var(--border);
  display:flex;align-items:center;justify-content:center;
  color:var(--text-2);transition:var(--ease);
}
.share-btn:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-1px);}

/* 侧栏 */
.article-side{position:sticky;top:96px;}
.side-card{
  background:#fff;
  border:1px solid var(--border);
  border-radius:var(--radius-card);
  padding:20px;
  box-shadow:var(--shadow);
}
.side-card + .side-card{margin-top:16px;}
.side-title{
  font-size:15px;font-weight:700;color:var(--brand-deep);
  padding-bottom:12px;margin-bottom:12px;
  border-bottom:1px solid var(--border);
}
.quick-list{display:flex;flex-direction:column;gap:12px;font-size:13.5px;}
.quick-list .row{display:flex;gap:10px;line-height:1.7;}
.quick-list .k{flex:0 0 64px;color:var(--text-3);}
.quick-list .v{color:var(--text);word-break:break-word;}
.side-list li{padding:11px 0;border-bottom:1px dashed var(--border);}
.side-list li:last-child{border-bottom:0;padding-bottom:0;}
.side-list a{display:block;font-size:14px;color:var(--text-2);line-height:1.6;transition:var(--ease);}
.side-list a:hover{color:var(--brand);}
.side-list .side-sub{display:block;font-size:12px;color:var(--text-3);margin-top:2px;}
.side-cta{background:var(--brand-deep);border-color:var(--brand-deep);}
.side-cta .side-title{color:#F3F7F4;border-bottom-color:rgba(255,255,255,.14);}
.side-cta p{font-size:13.5px;color:rgba(243,247,244,.72);line-height:1.8;margin-bottom:16px;}

/* 空态 */
.empty-state{
  border:1px dashed var(--border-strong);
  background:var(--bg);
  border-radius:var(--radius-card);
  padding:56px 24px;
  text-align:center;
}
.empty-state .empty-icon{
  width:56px;height:56px;margin:0 auto 16px;
  border-radius:14px;background:#E6F7F0;
  display:flex;align-items:center;justify-content:center;
  color:var(--brand);
}
.empty-state p{font-size:15px;color:var(--text-2);margin-bottom:18px;}

/* ---------- 相关内容 ---------- */
.related-section{background:var(--alt);padding:72px 0;}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;
  gap:24px;margin-bottom:32px;flex-wrap:wrap;
}
.section-head h2{font-size:28px;font-weight:700;color:var(--brand-deep);line-height:1.4;}
.section-head p{font-size:14px;color:var(--text-3);margin-top:8px;}
.text-link{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:600;color:var(--brand-hover);
  transition:var(--ease);
}
.text-link:hover{color:var(--brand-deep);}
.text-link .arrow{transition:var(--ease);}
.text-link:hover .arrow{transform:translateX(3px);}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.rel-card{
  display:flex;gap:14px;
  background:#fff;
  border:1px solid var(--border);
  border-radius:var(--radius-card);
  padding:14px;
  transition:var(--ease);
}
.rel-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:var(--border-strong);}
.rel-thumb{
  width:120px;height:80px;flex:0 0 120px;
  border-radius:10px;overflow:hidden;background:var(--alt);
}
.rel-thumb img{width:100%;height:100%;object-fit:cover;transition:var(--ease);}
.rel-card:hover .rel-thumb img{transform:scale(1.05);}
.rel-info{min-width:0;display:flex;flex-direction:column;}
.rel-title{
  font-size:15px;font-weight:600;line-height:1.5;color:var(--text);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  transition:var(--ease);
}
.rel-card:hover .rel-title{color:var(--brand-hover);}
.rel-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:12.5px;color:var(--text-3);margin-top:10px;
}
.rel-meta .mini-badge{
  padding:2px 8px;border-radius:999px;background:#E6F7F0;
  color:var(--brand-deep);font-size:11.5px;font-weight:600;
}

/* ---------- 上下篇 ---------- */
.post-nav{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:44px;}
.post-nav-card{
  display:block;padding:20px 22px;
  background:#fff;border:1px solid var(--border);
  border-radius:var(--radius-card);
  transition:var(--ease);
}
.post-nav-card:hover{border-color:var(--brand);box-shadow:var(--shadow-hover);transform:translateY(-3px);}
.post-nav-label{font-size:13px;color:var(--text-3);}
.post-nav-title{display:block;font-size:15.5px;font-weight:600;color:var(--brand-deep);margin-top:6px;line-height:1.55;}
.post-nav-next{text-align:right;}

/* ---------- CTA ---------- */
.cta-section{background:#fff;padding:0 0 80px;}
.cta-box{
  background:var(--brand-deep);
  border-radius:var(--radius-lg);
  padding:40px;
  display:flex;align-items:center;justify-content:space-between;
  gap:32px;flex-wrap:wrap;
}
.cta-box h2{font-size:26px;font-weight:700;color:#F3F7F4;line-height:1.45;margin-bottom:8px;}
.cta-box p{font-size:14.5px;color:rgba(243,247,244,.72);line-height:1.8;max-width:560px;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--brand-deep);color:#E8F1EC;padding:72px 0 28px;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.4fr;gap:40px;}
.footer-brand .logo-name{color:#fff;}
.footer-brand .logo-sub{color:rgba(243,247,244,.58);}
.footer-desc{font-size:14px;line-height:1.9;color:rgba(243,247,244,.72);margin:16px 0 14px;max-width:340px;}
.footer-meta{display:flex;flex-direction:column;gap:6px;font-size:13px;color:rgba(243,247,244,.58);}
.footer-title{font-size:14px;font-weight:600;color:rgba(255,255,255,.66);margin-bottom:16px;}
.footer-link{display:block;font-size:14px;color:#E8F1EC;padding:7px 0;transition:var(--ease);}
.footer-link:hover{color:var(--brand);transform:translateX(1px);}
.footer-label{display:block;font-size:13px;color:rgba(243,247,244,.66);margin-bottom:8px;}
.footer-input{
  width:100%;height:44px;
  border-radius:var(--radius-btn);
  border:1px solid rgba(255,255,255,.18);
  background:rgba(255,255,255,.06);
  color:#F3F7F4;
  padding:0 14px;font-size:14px;
  margin-bottom:12px;
  transition:var(--ease);
}
.footer-input::placeholder{color:rgba(243,247,244,.42);}
.footer-input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(23,192,138,.22);}
.footer-hint{font-size:12.5px;color:rgba(243,247,244,.5);line-height:1.7;margin-top:10px;}
.footer-bottom{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  border-top:1px solid rgba(255,255,255,.14);
  margin-top:48px;padding-top:22px;
  font-size:12.5px;color:rgba(243,247,244,.55);
}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  body .container{padding-left:24px;padding-right:24px;}
  .main-nav{display:none;}
  .mega-wrap{display:none;}
  .header-cta{display:none;}
  .nav-toggle{display:flex;align-items:center;justify-content:center;}
  .header-inner{height:60px;gap:16px;}
  .logo-name{font-size:16px;}
  .logo-sub{font-size:11px;}
  .article-head h1{font-size:30px;}
  .article-layout{grid-template-columns:1fr;gap:40px;}
  .article-side{position:static;}
  .related-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .related-section{padding:56px 0;}
  .article-main-section{padding:36px 0 64px;}
}
@media (max-width:768px){
  body .container{padding-left:20px;padding-right:20px;}
  .article-head h1{font-size:26px;line-height:1.4;}
  .prose{font-size:16px;}
  .prose h2{font-size:22px;}
  .prose h3{font-size:18px;}
  .related-grid{grid-template-columns:1fr;}
  .post-nav{grid-template-columns:1fr;}
  .post-nav-next{text-align:left;}
  .cta-box{padding:28px;}
  .cta-box h2{font-size:22px;}
  .cta-box .btn{width:100%;}
  .section-head h2{font-size:24px;}
  .footer-bottom{flex-direction:column;}
}
@media (max-width:520px){
  .footer-grid{grid-template-columns:1fr;}
  .rel-thumb{display:none;}
  .logo-sub{display:none;}
  .article-meta{font-size:13px;}
}

/* roulang page: category2 */
:root{
    --deep:#0F3D33;
    --brand:#17C08A;
    --brand-hover:#12A876;
    --brand-active:#0E8D62;
    --accent:#FF7A45;
    --sun:#FFD166;
    --page:#F6F4EF;
    --alt:#EDF2EE;
    --ink:#16211D;
    --sub:#4A5A54;
    --mute:#7C8B85;
    --line:#E1E6E2;
    --line-strong:#C9D8CF;
    --card-shadow:0 1px 2px rgba(15,61,51,.06), 0 8px 24px -14px rgba(15,61,51,.20);
    --card-shadow-hover:0 10px 30px -14px rgba(15,61,51,.30);
    --radius-card:14px;
    --radius-block:20px;
    --radius-btn:10px;
    --ease:200ms ease-out;
  }
  *,*::before,*::after{box-sizing:border-box}
  html{-webkit-text-size-adjust:100%}
  body{
    margin:0;
    font-family:system-ui,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
    font-size:16px;
    line-height:1.85;
    color:var(--ink);
    background:var(--page);
    letter-spacing:0.01em;
    -webkit-font-smoothing:antialiased;
  }
  img{max-width:100%;display:block}
  a{color:inherit;text-decoration:none}
  button{font-family:inherit;cursor:pointer;border:none;background:none}
  input{font-family:inherit}
  h1,h2,h3,h4,p,ul,ol,figure{margin:0}
  ul,ol{padding:0;list-style:none}
  :focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px}
  body.no-scroll{overflow:hidden}

  .container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}

  /* ---------- Header ---------- */
  .site-header{
    position:sticky;top:0;z-index:60;
    background:rgba(255,255,255,.94);
    backdrop-filter:saturate(160%) blur(8px);
    border-bottom:1px solid var(--line);
    transition:box-shadow var(--ease);
  }
  .header-inner{display:flex;align-items:center;gap:28px;height:72px}
  .logo{display:flex;align-items:center;gap:10px;flex-shrink:0}
  .logo-mark{
    width:28px;height:28px;border-radius:8px;background:var(--brand);
    display:flex;align-items:center;justify-content:center;flex-shrink:0;
  }
  .logo-mark svg{width:17px;height:17px}
  .logo-name{display:block;font-size:18px;font-weight:700;color:var(--ink);line-height:1.25;letter-spacing:0}
  .logo-sub{display:block;font-size:12px;color:var(--mute);line-height:1.4}
  .main-nav{display:flex;align-items:center;gap:4px;margin-left:18px}
  .nav-link{
    position:relative;display:inline-block;padding:8px 12px;font-size:15px;font-weight:500;
    color:var(--sub);border-radius:8px;transition:color var(--ease),background var(--ease);
  }
  .nav-link:hover{color:var(--brand);background:#F2FAF6}
  .nav-link.active{color:var(--ink);font-weight:700}
  .nav-link.active::after{
    content:"";position:absolute;left:12px;right:12px;bottom:-4px;height:2px;
    background:var(--brand);border-radius:2px;
  }
  .header-actions{margin-left:auto;display:flex;align-items:center;gap:12px}

  .mega-wrap{position:relative}
  .mega-trigger{
    display:inline-flex;align-items:center;gap:6px;padding:9px 14px;font-size:14px;
    color:var(--sub);border:1px solid transparent;border-radius:var(--radius-btn);
    transition:color var(--ease),background var(--ease),border-color var(--ease);
  }
  .mega-trigger:hover{color:var(--brand);border-color:var(--line-strong);background:#fff}
  .mega-panel{
    position:absolute;top:calc(100% + 14px);right:0;width:720px;max-width:calc(100vw - 48px);
    background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
    box-shadow:0 18px 44px -20px rgba(15,61,51,.34);
    padding:26px 26px 24px;overflow:hidden;
    opacity:0;visibility:hidden;transform:translateY(-6px);
    transition:opacity var(--ease),transform var(--ease),visibility var(--ease);
  }
  .mega-panel::before{content:"";position:absolute;top:0;left:0;right:0;height:2px;background:var(--brand)}
  .mega-wrap:hover .mega-panel,
  .mega-wrap:focus-within .mega-panel{opacity:1;visibility:visible;transform:translateY(0)}
  .mega-grid{display:grid;grid-template-columns:1.1fr 1.2fr 1fr;gap:24px}
  .mega-col-title{font-size:12px;font-weight:600;color:var(--mute);letter-spacing:.06em;margin-bottom:10px}
  .mega-item{display:flex;align-items:center;gap:8px;padding:8px 0;font-size:14px;color:var(--sub);transition:color var(--ease)}
  .mega-item:hover{color:var(--brand)}
  .dot{width:6px;height:6px;border-radius:999px;background:var(--brand);flex-shrink:0}
  .mega-news{display:block;padding:8px 0;border-bottom:1px dashed var(--line);transition:color var(--ease)}
  .mega-news:hover .mega-news-title{color:var(--brand)}
  .mega-news-title{display:block;font-size:14px;color:var(--sub);line-height:1.5}
  .mega-news-date{display:block;font-size:12px;color:var(--mute);margin-top:2px}
  .mega-card{display:block;border:1px solid var(--line);border-radius:10px;overflow:hidden;transition:border-color var(--ease),transform var(--ease)}
  .mega-card:hover{border-color:var(--brand);transform:translateY(-2px)}
  .mega-card img{width:100%;height:96px;object-fit:cover}
  .mega-card span{display:flex;align-items:center;justify-content:space-between;gap:8px;padding:10px 12px;font-size:13px;color:var(--sub)}

  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    padding:12px 24px;font-size:15px;font-weight:600;border-radius:var(--radius-btn);
    transition:background var(--ease),color var(--ease),border-color var(--ease),transform var(--ease),box-shadow var(--ease);
    min-height:44px;
  }
  .btn-primary{background:var(--brand);color:#fff}
  .btn-primary:hover{background:var(--brand-hover);transform:translateY(-1px)}
  .btn-primary:active{background:var(--brand-active);transform:translateY(0)}
  .btn-ghost{background:#fff;color:var(--deep);border:1px solid var(--line-strong)}
  .btn-ghost:hover{border-color:var(--brand);color:var(--brand-active)}
  .btn-light{background:#fff;color:var(--deep)}
  .btn-light:hover{background:#F2FAF6;transform:translateY(-1px)}
  .btn[disabled]{opacity:.5;transform:none;cursor:not-allowed}
  .link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--brand-active)}
  .link-arrow svg{transition:transform var(--ease)}
  .link-arrow:hover svg{transform:translateX(2px)}

  .mobile-toggle{display:none;width:44px;height:44px;border-radius:10px;border:1px solid var(--line-strong);align-items:center;justify-content:center;background:#fff}
  .mobile-toggle svg{width:22px;height:22px;stroke:var(--deep)}
  .mobile-drawer{
    position:fixed;inset:0;z-index:100;background:#fff;width:100%;max-width:92vw;
    transform:translateX(100%);transition:transform var(--ease);
    display:flex;flex-direction:column;padding:20px;overflow-y:auto;
    box-shadow:-20px 0 50px rgba(15,61,51,.18);
  }
  .mobile-drawer.open{transform:translateX(0)}
  .drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
  .drawer-close{width:44px;height:44px;border-radius:10px;border:1px solid var(--line-strong);display:flex;align-items:center;justify-content:center;font-size:20px;color:var(--deep)}
  .drawer-link{display:block;padding:14px 12px;font-size:16px;color:var(--sub);border-left:3px solid transparent;border-bottom:1px solid var(--line)}
  .drawer-link:hover,.drawer-link.active{color:var(--deep);font-weight:600;border-left-color:var(--brand);background:#F6FAF8}
  .drawer-cta{margin-top:auto;padding-top:20px}

  /* ---------- Page head ---------- */
  .breadcrumb{
    display:flex;align-items:center;gap:8px;flex-wrap:wrap;
    font-size:13px;color:var(--mute);padding:20px 0 0;
  }
  .breadcrumb a{color:var(--mute);transition:color var(--ease)}
  .breadcrumb a:hover{color:var(--brand)}
  .breadcrumb span.sep{color:var(--line-strong)}
  .breadcrumb .current{color:var(--mute)}

  .page-head{background:#fff;border-bottom:1px solid var(--line);padding-bottom:44px}
  .page-head-inner{padding-top:22px;max-width:840px}
  .page-badge{
    display:inline-flex;align-items:center;gap:6px;padding:5px 12px;border-radius:999px;
    background:#E6F7F0;color:var(--deep);font-size:12px;font-weight:600;margin-bottom:16px;
  }
  .page-head h1{
    font-size:44px;line-height:1.25;font-weight:800;color:var(--deep);letter-spacing:0;
    margin-bottom:14px;
  }
  .page-head .lead{font-size:17px;line-height:1.85;color:var(--sub);max-width:640px}

  /* ---------- Anchor layout ---------- */
  .anchor-layout{
    display:grid;grid-template-columns:260px minmax(0,1fr);gap:48px;
    padding:56px 0 96px;align-items:start;
  }
  .anchor-nav{position:sticky;top:96px;align-self:start}
  .anchor-nav-title{font-size:12px;font-weight:600;color:var(--mute);letter-spacing:.06em;margin-bottom:12px}
  .anchor-nav a{
    display:block;padding:10px 0 10px 14px;border-left:3px solid transparent;
    font-size:14px;color:var(--sub);transition:color var(--ease),border-color var(--ease),background var(--ease);
  }
  .anchor-nav a:hover{color:var(--deep);border-left-color:var(--line-strong);background:#fff}
  .anchor-nav a.active{color:var(--deep);font-weight:600;border-left-color:var(--brand);background:#fff}
  .anchor-note{
    margin-top:20px;padding:16px;border:1px solid var(--line);border-radius:var(--radius-card);
    background:#fff;font-size:13px;line-height:1.8;color:var(--mute);
  }

  .seg{
    background:#fff;border:1px solid var(--line);border-radius:var(--radius-block);
    padding:34px 36px;margin-bottom:24px;box-shadow:var(--card-shadow);
    scroll-margin-top:100px;
  }
  .seg h2{
    font-size:32px;line-height:1.3;font-weight:700;color:var(--deep);
    padding-left:16px;position:relative;margin-bottom:18px;
  }
  .seg h2::before{
    content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;
    border-radius:2px;background:var(--brand);
  }
  .seg p{font-size:16px;line-height:1.9;color:var(--sub);margin-bottom:1.2em}
  .seg p:last-of-type{margin-bottom:0}

  .split{display:grid;grid-template-columns:1fr 1fr;gap:32px;align-items:center;margin:26px 0 4px}
  .split.rev .figure{order:2}
  .split.rev .split-text{order:1}
  .figure{margin:0}
  .figure img{
    width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--radius-card);
    border:1px solid var(--line);background:var(--alt);
  }
  .figure figcaption{font-size:13px;color:var(--mute);margin-top:8px;line-height:1.7}
  .split-text ul{display:flex;flex-direction:column;gap:10px}
  .split-text li{
    position:relative;padding-left:18px;font-size:15px;line-height:1.85;color:var(--sub);
  }
  .split-text li::before{
    content:"";position:absolute;left:0;top:.72em;width:6px;height:6px;border-radius:999px;background:var(--brand);
  }

  .stat-row{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:26px}
  .stat{
    padding:18px 20px;border-radius:var(--radius-card);background:var(--alt);
    border:1px solid #DCE6E0;
  }
  .stat-num{display:block;font-size:26px;font-weight:800;color:var(--accent);line-height:1.2}
  .stat-num small{font-size:14px;font-weight:700;margin-left:2px}
  .stat-label{display:block;font-size:13px;color:var(--mute);margin-top:6px;line-height:1.6}

  /* ---------- Steps ---------- */
  .steps-block{background:#fff;border:1px solid var(--line);border-radius:var(--radius-block);padding:36px;box-shadow:var(--card-shadow);margin-bottom:24px}
  .steps-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:30px;flex-wrap:wrap}
  .steps-head h2{font-size:28px;font-weight:700;color:var(--deep);line-height:1.3}
  .steps-head p{font-size:14px;color:var(--mute);max-width:420px}
  .steps{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
  .step{position:relative;padding-top:30px}
  .step::before{content:"";position:absolute;top:9px;left:0;right:0;height:1px;background:var(--line-strong)}
  .step:last-child::before{right:calc(100% - 20px)}
  .step-dot{
    position:absolute;top:0;left:0;width:20px;height:20px;border-radius:999px;
    background:var(--brand);color:#fff;font-size:12px;font-weight:700;
    display:flex;align-items:center;justify-content:center;
  }
  .step h3{font-size:17px;font-weight:600;color:var(--ink);margin-bottom:8px}
  .step p{font-size:14px;line-height:1.8;color:var(--sub)}

  /* ---------- CTA ---------- */
  .cta-band{
    background:var(--deep);border-radius:var(--radius-block);padding:44px;
    display:flex;align-items:center;justify-content:space-between;gap:32px;
    margin-bottom:24px;
  }
  .cta-band h2{font-size:28px;font-weight:700;color:#F3F7F4;line-height:1.35;margin-bottom:10px}
  .cta-band p{font-size:15px;line-height:1.85;color:rgba(243,247,244,.78);max-width:560px}
  .cta-band .btn{flex-shrink:0}

  /* ---------- Related ---------- */
  .related-block{padding:8px 0 0}
  .related-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:22px;flex-wrap:wrap}
  .related-head h2{font-size:28px;font-weight:700;color:var(--deep)}
  .related-head p{font-size:14px;color:var(--mute);margin-top:6px}
  .related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
  .related-card{
    position:relative;display:flex;flex-direction:column;background:#fff;
    border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;
    box-shadow:var(--card-shadow);transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
  }
  .related-card:hover{transform:translateY(-3px);box-shadow:var(--card-shadow-hover);border-color:var(--line-strong)}
  .related-card img{width:100%;height:150px;object-fit:cover;background:var(--alt)}
  .related-body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:8px;flex:1}
  .tag{
    display:inline-flex;align-items:center;padding:4px 10px;border-radius:999px;
    background:#E6F7F0;color:var(--deep);font-size:12px;font-weight:600;align-self:flex-start;
  }
  .tag-warm{background:#FFEDE6;color:#C2410C}
  .related-body h3{font-size:18px;font-weight:600;color:var(--ink);line-height:1.5}
  .related-body p{font-size:14px;line-height:1.8;color:var(--sub)}
  .related-body .link-arrow{margin-top:auto;font-size:14px}

  /* ---------- Footer ---------- */
  .site-footer{background:var(--deep);color:#E8F1EC;padding:72px 0 32px;margin-top:24px}
  .footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.3fr;gap:40px}
  .footer-brand .logo-name{color:#F3F7F4}
  .footer-brand .logo-sub{color:rgba(232,241,236,.6)}
  .footer-brand .logo-mark{background:var(--brand)}
  .footer-desc{font-size:14px;line-height:1.9;color:rgba(232,241,236,.72);margin-top:16px;max-width:320px}
  .footer-meta{display:flex;flex-direction:column;gap:6px;margin-top:16px;font-size:13px;color:rgba(232,241,236,.58)}
  .footer-title{font-size:14px;font-weight:600;color:rgba(255,255,255,.86);margin-bottom:14px}
  .footer-link{display:block;font-size:14px;color:rgba(232,241,236,.72);padding:6px 0;transition:color var(--ease),transform var(--ease)}
  .footer-link:hover{color:var(--brand);transform:translateX(1px)}
  .footer-label{display:block;font-size:13px;color:rgba(232,241,236,.62);margin-bottom:8px}
  .footer-input{
    width:100%;height:44px;padding:0 14px;border-radius:var(--radius-btn);
    border:1px solid rgba(255,255,255,.24);background:rgba(255,255,255,.06);
    color:#F3F7F4;font-size:14px;margin-bottom:12px;transition:border-color var(--ease),box-shadow var(--ease);
  }
  .footer-input::placeholder{color:rgba(232,241,236,.45)}
  .footer-input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(23,192,138,.24)}
  .footer-hint{font-size:12.5px;color:rgba(232,241,236,.52);margin-top:10px;line-height:1.7}
  .footer-bottom{
    display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
    margin-top:48px;padding-top:22px;border-top:1px solid rgba(255,255,255,.14);
    font-size:12.5px;color:rgba(232,241,236,.55);
  }

  /* ---------- Responsive ---------- */
  @media (max-width:1280px){
    .mega-panel{width:640px}
  }
  @media (max-width:1024px){
    .container{padding:0 24px}
    .main-nav,.mega-wrap{display:none}
    .mobile-toggle{display:flex}
    .header-inner{height:64px;gap:12px}
    .page-head h1{font-size:34px}
    .anchor-layout{grid-template-columns:1fr;gap:28px;padding:40px 0 72px}
    .anchor-nav{
      position:static;display:flex;gap:8px;overflow-x:auto;padding-bottom:6px;
      -webkit-overflow-scrolling:touch;
    }
    .anchor-nav-title{display:none}
    .anchor-nav a{
      border-left:none;border:1px solid var(--line);border-radius:999px;background:#fff;
      padding:8px 16px;white-space:nowrap;font-size:13.5px;
    }
    .anchor-nav a.active{border-color:var(--brand);background:#E6F7F0;color:var(--deep)}
    .anchor-note{display:none}
    .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  }
  @media (max-width:768px){
    body{font-size:15.5px;line-height:1.8}
    .container{padding:0 20px}
    .page-head{padding-bottom:32px}
    .page-head h1{font-size:30px}
    .page-head .lead{font-size:16px}
    .seg{padding:24px 20px;border-radius:var(--radius-card)}
    .seg h2{font-size:24px;padding-left:14px}
    .split{grid-template-columns:1fr;gap:20px}
    .split.rev .figure{order:0}
    .split.rev .split-text{order:0}
    .stat-row{grid-template-columns:1fr;gap:12px}
    .steps-block{padding:24px 20px}
    .steps{grid-template-columns:1fr 1fr;gap:20px}
    .step::before{right:0}
    .step:last-child::before{right:0}
    .cta-band{flex-direction:column;align-items:flex-start;padding:28px 24px;gap:20px}
    .cta-band h2{font-size:23px}
    .cta-band .btn{width:100%}
    .related-grid{grid-template-columns:1fr}
    .related-head h2,.steps-head h2{font-size:23px}
    .site-footer{padding:56px 0 28px}
    .footer-grid{grid-template-columns:1fr;gap:28px}
    .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
  }
  @media (max-width:520px){
    .steps{grid-template-columns:1fr}
    .step::before{display:none}
    .step{padding-top:0;padding-left:30px}
    .step-dot{top:2px}
    .page-head h1{font-size:27px}
    .seg h2{font-size:22px}
    .stat-num{font-size:23px}
  }

/* roulang page: category3 */
:root{
    --brand-900:#0F3D33;
    --brand-800:#14503F;
    --brand-700:#0E8D62;
    --brand-600:#12A876;
    --brand-500:#17C08A;
    --accent:#FF7A45;
    --accent-ink:#C2410C;
    --accent-soft:#FFD166;
    --bg:#F6F4EF;
    --card:#FFFFFF;
    --alt:#EDF2EE;
    --ink:#16211D;
    --ink-2:#4A5A54;
    --ink-3:#7C8B85;
    --line:#E1E6E2;
    --line-strong:#C9D8CF;
    --line-dark:rgba(255,255,255,.14);
    --radius-card:14px;
    --radius-band:20px;
    --radius-btn:10px;
    --shadow-card:0 1px 2px rgba(15,61,51,.06), 0 8px 24px -14px rgba(15,61,51,.20);
    --shadow-hover:0 10px 30px -14px rgba(15,61,51,.30);
    --ease:200ms ease-out;
  }

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

  body.site-body{
    margin:0;
    font-family:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
    font-size:16px;
    line-height:1.85;
    color:var(--ink);
    background:var(--bg);
    -webkit-font-smoothing:antialiased;
  }

  img{max-width:100%;display:block}
  a{color:inherit}
  button{font-family:inherit}

  a:focus-visible,
  button:focus-visible,
  input:focus-visible,
  summary:focus-visible{
    outline:2px solid var(--brand-500);
    outline-offset:2px;
  }

  .container{
    width:100%;
    max-width:1200px;
    margin:0 auto;
    padding:0 32px;
  }

  /* ---------- header ---------- */
  .site-header{
    position:sticky;
    top:0;
    z-index:60;
    background:#fff;
    border-bottom:1px solid var(--line);
    transition:box-shadow var(--ease);
  }
  .site-header.is-scrolled{box-shadow:0 8px 24px -16px rgba(15,61,51,.45)}
  .header-inner{
    display:flex;
    align-items:center;
    gap:20px;
    height:72px;
  }
  .logo{
    display:inline-flex;
    align-items:center;
    gap:10px;
    text-decoration:none;
    flex:none;
  }
  .logo-mark{
    width:28px;
    height:28px;
    border-radius:8px;
    background:var(--brand-500);
    display:inline-flex;
    align-items:center;
    justify-content:center;
    flex:none;
  }
  .logo-mark svg{width:18px;height:18px;display:block}
  .logo-name{
    display:block;
    font-size:18px;
    font-weight:700;
    line-height:1.2;
    color:var(--ink);
  }
  .logo-sub{
    display:block;
    font-size:12px;
    line-height:1.4;
    color:var(--ink-3);
  }

  .main-nav{
    display:flex;
    align-items:center;
    gap:26px;
    margin-left:8px;
  }
  .nav-link{
    position:relative;
    display:inline-flex;
    align-items:center;
    min-height:44px;
    font-size:15px;
    font-weight:500;
    color:var(--ink-2);
    text-decoration:none;
    transition:color var(--ease);
  }
  .nav-link:hover{color:var(--brand-500)}
  .nav-link.active{color:var(--ink);font-weight:700}
  .nav-link.active::after{
    content:"";
    position:absolute;
    left:0;
    right:0;
    bottom:6px;
    height:2px;
    border-radius:2px;
    background:var(--brand-500);
  }

  .header-actions{
    margin-left:auto;
    display:flex;
    align-items:center;
    gap:12px;
  }

  .mega-wrap{position:relative}
  .mega-trigger{
    display:inline-flex;
    align-items:center;
    gap:6px;
    min-height:44px;
    padding:0 14px;
    border:1px solid transparent;
    border-radius:var(--radius-btn);
    background:transparent;
    color:var(--ink-2);
    font-size:15px;
    font-weight:500;
    cursor:pointer;
    transition:background var(--ease),color var(--ease);
  }
  .mega-trigger:hover{background:var(--alt);color:var(--brand-700)}
  .mega-panel{
    position:absolute;
    right:0;
    top:calc(100% + 12px);
    width:720px;
    max-width:calc(100vw - 48px);
    background:#fff;
    border:1px solid var(--line);
    border-radius:var(--radius-card);
    box-shadow:0 24px 48px -24px rgba(15,61,51,.35);
    padding:22px;
    opacity:0;
    visibility:hidden;
    transform:translateY(-6px);
    transition:opacity var(--ease),transform var(--ease),visibility var(--ease);
  }
  .mega-panel::before{
    content:"";
    position:absolute;
    left:0;
    right:0;
    top:0;
    height:2px;
    border-radius:var(--radius-card) var(--radius-card) 0 0;
    background:var(--brand-500);
  }
  .mega-wrap:hover .mega-panel,
  .mega-wrap:focus-within .mega-panel{
    opacity:1;
    visibility:visible;
    transform:translateY(0);
  }
  .mega-grid{
    display:grid;
    grid-template-columns:1fr 1fr 1.15fr;
    gap:22px;
  }
  .mega-col-title{
    font-size:13px;
    font-weight:600;
    color:var(--ink-3);
    margin-bottom:8px;
  }
  .mega-item{
    display:flex;
    align-items:center;
    gap:8px;
    padding:8px 0;
    font-size:14px;
    color:var(--ink-2);
    text-decoration:none;
    transition:color var(--ease);
  }
  .mega-item:hover{color:var(--brand-600)}
  .mega-item .dot{
    width:6px;
    height:6px;
    border-radius:50%;
    background:var(--brand-500);
    flex:none;
  }
  .mega-news{
    display:block;
    padding:9px 0;
    text-decoration:none;
    border-bottom:1px dashed var(--line);
  }
  .mega-news:last-child{border-bottom:0}
  .mega-news-title{
    display:block;
    font-size:14px;
    color:var(--ink);
    line-height:1.5;
    transition:color var(--ease);
  }
  .mega-news:hover .mega-news-title{color:var(--brand-600)}
  .mega-news-date{display:block;font-size:12px;color:var(--ink-3);margin-top:2px}
  .mega-feature{
    display:block;
    border:1px solid var(--line);
    border-radius:12px;
    overflow:hidden;
    background:var(--alt);
    text-decoration:none;
    transition:border-color var(--ease),transform var(--ease);
  }
  .mega-feature:hover{border-color:var(--brand-500);transform:translateY(-2px)}
  .mega-feature img{width:100%;aspect-ratio:16/9;object-fit:cover}
  .mega-feature-body{
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:8px;
    padding:10px 12px;
    font-size:14px;
    font-weight:600;
    color:var(--ink);
  }

  .nav-toggle{
    display:none;
    width:44px;
    height:44px;
    align-items:center;
    justify-content:center;
    border:1px solid var(--line-strong);
    border-radius:var(--radius-btn);
    background:#fff;
    color:var(--ink);
    cursor:pointer;
    transition:border-color var(--ease),background var(--ease);
  }
  .nav-toggle:hover{border-color:var(--brand-500);background:var(--alt)}

  /* ---------- buttons ---------- */
  .btn{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    gap:8px;
    min-height:44px;
    padding:12px 26px;
    border:1px solid transparent;
    border-radius:var(--radius-btn);
    font-size:15px;
    font-weight:600;
    line-height:1.2;
    text-decoration:none;
    cursor:pointer;
    transition:background var(--ease),color var(--ease),border-color var(--ease),transform var(--ease),box-shadow var(--ease);
  }
  .btn-primary{background:var(--brand-500);color:#fff}
  .btn-primary:hover{background:var(--brand-600);transform:translateY(-1px)}
  .btn-primary:active{background:var(--brand-700);transform:none}
  .btn-ghost{background:#fff;color:var(--brand-900);border-color:var(--line-strong)}
  .btn-ghost:hover{border-color:var(--brand-500);color:var(--brand-700)}
  .btn-invert{background:#fff;color:var(--brand-900)}
  .btn-invert:hover{background:#F3F7F4;transform:translateY(-1px)}
  .btn:disabled,.btn[aria-disabled="true"]{opacity:.5;transform:none;cursor:not-allowed}

  /* ---------- badges ---------- */
  .badge{
    display:inline-flex;
    align-items:center;
    gap:6px;
    padding:5px 12px;
    border-radius:999px;
    background:#E6F7F0;
    color:var(--brand-700);
    font-size:12px;
    font-weight:600;
    line-height:1.4;
  }
  .badge-accent{background:#FFEDE6;color:var(--accent-ink)}

  /* ---------- breadcrumb ---------- */
  .breadcrumb{
    display:flex;
    align-items:center;
    flex-wrap:wrap;
    gap:6px;
    padding:18px 0 4px;
    font-size:13px;
    color:var(--ink-3);
  }
  .breadcrumb a{
    color:var(--ink-2);
    text-decoration:none;
    transition:color var(--ease);
  }
  .breadcrumb a:hover{color:var(--brand-600)}
  .breadcrumb .sep{color:var(--line-strong)}
  .breadcrumb .current{color:var(--ink-3)}

  /* ---------- page head ---------- */
  .page-head{
    background:#fff;
    border-bottom:1px solid var(--line);
  }
  .page-head-inner{padding:12px 0 46px}
  .page-title{
    margin:14px 0 0;
    font-size:clamp(30px,4vw,44px);
    font-weight:800;
    line-height:1.25;
    letter-spacing:0;
    color:var(--ink);
  }
  .page-lead{
    margin:14px 0 0;
    max-width:760px;
    font-size:16px;
    line-height:1.9;
    color:var(--ink-2);
  }
  .head-tags{
    display:flex;
    flex-wrap:wrap;
    gap:8px;
    margin-top:18px;
  }
  .faq-search{
    margin-top:26px;
    display:flex;
    gap:10px;
    max-width:580px;
  }
  .faq-search input{
    flex:1;
    min-width:0;
    height:48px;
    padding:0 16px;
    border:1px solid var(--line-strong);
    border-radius:var(--radius-btn);
    background:#fff;
    color:var(--ink);
    font-size:15px;
    transition:border-color var(--ease),box-shadow var(--ease);
  }
  .faq-search input::placeholder{color:var(--ink-3)}
  .faq-search input:focus{
    outline:none;
    border-color:var(--brand-500);
    box-shadow:0 0 0 3px rgba(23,192,138,.16);
  }

  /* ---------- sections ---------- */
  .section{padding:96px 0}
  .section-tight{padding:72px 0}
  .section-alt{background:var(--alt)}

  /* ---------- faq layout ---------- */
  .faq-layout{
    display:grid;
    grid-template-columns:minmax(0,1fr) 340px;
    gap:32px;
    align-items:start;
  }
  .faq-group + .faq-group{margin-top:40px}
  .faq-group-title{
    display:flex;
    align-items:center;
    gap:10px;
    margin:0 0 16px;
    font-size:20px;
    font-weight:600;
    color:var(--ink);
  }
  .faq-group-title::before{
    content:"";
    width:4px;
    height:18px;
    border-radius:2px;
    background:var(--brand-500);
    flex:none;
  }
  .faq-grid{
    display:grid;
    grid-template-columns:repeat(2,minmax(0,1fr));
    gap:12px;
    align-items:start;
  }
  .faq-item{
    background:#fff;
    border:1px solid var(--line);
    border-radius:12px;
    padding:0 18px;
    transition:border-color var(--ease),box-shadow var(--ease);
  }
  .faq-item:hover{border-color:var(--line-strong);box-shadow:var(--shadow-card)}
  .faq-item[open]{border-color:var(--line-strong)}
  .faq-item summary{
    display:flex;
    align-items:flex-start;
    justify-content:space-between;
    gap:12px;
    padding:16px 0;
    font-size:16px;
    font-weight:600;
    line-height:1.6;
    color:var(--ink);
    cursor:pointer;
    list-style:none;
  }
  .faq-item summary::-webkit-details-marker{display:none}
  .faq-item summary::after{
    content:"+";
    flex:none;
    font-size:20px;
    line-height:1;
    color:var(--brand-500);
    transition:transform var(--ease),color var(--ease);
  }
  .faq-item[open] summary::after{
    content:"−";
    color:var(--brand-600);
    transform:rotate(180deg);
  }
  .faq-answer{
    border-top:1px dashed var(--line);
    margin:0;
    padding:14px 0 18px;
    font-size:15px;
    line-height:1.9;
    color:var(--ink-2);
  }

  /* ---------- side card ---------- */
  .side-card{
    position:sticky;
    top:96px;
    background:var(--brand-900);
    border:1px solid var(--line-dark);
    border-radius:var(--radius-card);
    padding:26px 24px;
    color:#E8F1EC;
  }
  .side-card .badge{background:rgba(23,192,138,.18);color:#9FEBD0}
  .side-card-title{
    margin:14px 0 8px;
    font-size:22px;
    font-weight:700;
    line-height:1.4;
    color:#F3F7F4;
  }
  .side-card-text{
    margin:0 0 20px;
    font-size:14.5px;
    line-height:1.9;
    color:rgba(232,241,236,.78);
  }
  .side-card .btn{width:100%}
  .side-card-meta{
    margin-top:20px;
    padding-top:16px;
    border-top:1px solid var(--line-dark);
    display:flex;
    flex-direction:column;
    gap:8px;
    font-size:13px;
    color:rgba(232,241,236,.68);
  }
  .side-card-meta strong{
    display:block;
    font-weight:600;
    color:rgba(243,247,244,.92);
    font-size:13px;
  }
  .side-card-meta a{color:#9FEBD0;text-decoration:none}
  .side-card-meta a:hover{text-decoration:underline;text-underline-offset:3px}

  /* ---------- section head ---------- */
  .section-head{
    display:flex;
    align-items:flex-end;
    justify-content:space-between;
    gap:20px;
    flex-wrap:wrap;
    margin-bottom:24px;
  }
  .section-title{
    margin:0;
    font-size:clamp(24px,2.6vw,32px);
    font-weight:700;
    line-height:1.35;
    color:var(--ink);
  }
  .section-sub{
    margin:8px 0 0;
    font-size:14px;
    color:var(--ink-3);
    max-width:640px;
  }

  /* ---------- quick links ---------- */
  .quick-card{
    display:flex;
    flex-direction:column;
    height:100%;
    background:#fff;
    border:1px solid var(--line);
    border-radius:var(--radius-card);
    overflow:hidden;
    text-decoration:none;
    box-shadow:var(--shadow-card);
    transition:border-color var(--ease),transform var(--ease),box-shadow var(--ease);
  }
  .quick-card:hover{
    border-color:var(--brand-500);
    transform:translateY(-3px);
    box-shadow:var(--shadow-hover);
  }
  .quick-card img{
    width:100%;
    aspect-ratio:16/9;
    object-fit:cover;
  }
  .quick-body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:8px;flex:1}
  .quick-title{
    font-size:17px;
    font-weight:600;
    line-height:1.5;
    color:var(--ink);
    transition:color var(--ease);
  }
  .quick-card:hover .quick-title{color:var(--brand-600)}
  .quick-desc{
    font-size:14px;
    line-height:1.8;
    color:var(--ink-2);
    margin:0;
  }
  .quick-more{
    margin-top:auto;
    padding-top:12px;
    border-top:1px dashed var(--line);
    font-size:14px;
    font-weight:600;
    color:var(--brand-700);
    display:inline-flex;
    align-items:center;
    gap:6px;
  }
  .quick-card:hover .quick-more span{transform:translateX(2px)}
  .quick-more span{transition:transform var(--ease)}

  /* ---------- CTA band ---------- */
  .cta-band{
    background:var(--brand-900);
    border-radius:var(--radius-band);
    padding:40px;
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:28px;
    flex-wrap:wrap;
  }
  .cta-band h2{
    margin:0 0 8px;
    font-size:clamp(24px,2.6vw,32px);
    font-weight:700;
    line-height:1.35;
    color:#F3F7F4;
  }
  .cta-band p{
    margin:0;
    font-size:15px;
    line-height:1.85;
    color:rgba(243,247,244,.78);
    max-width:620px;
  }

  /* ---------- footer ---------- */
  .site-footer{
    background:var(--brand-900);
    color:#E8F1EC;
    padding:72px 0 28px;
    font-size:14px;
  }
  .footer-grid{
    display:grid;
    grid-template-columns:1.4fr 1fr 1fr 1.25fr;
    gap:40px 32px;
  }
  .site-footer .logo-name{color:#F3F7F4}
  .site-footer .logo-sub{color:rgba(232,241,236,.6)}
  .footer-desc{
    margin:16px 0 12px;
    max-width:320px;
    font-size:13.5px;
    line-height:1.9;
    color:rgba(232,241,236,.72);
  }
  .footer-meta{
    display:flex;
    flex-direction:column;
    gap:6px;
    font-size:13px;
    color:rgba(232,241,236,.6);
  }
  .footer-title{
    margin-bottom:14px;
    font-size:14px;
    font-weight:600;
    color:rgba(255,255,255,.72);
  }
  .footer-link{
    display:block;
    padding:5px 0;
    font-size:14px;
    color:rgba(232,241,236,.86);
    text-decoration:none;
    transition:color var(--ease),transform var(--ease);
  }
  .footer-link:hover{color:var(--brand-500);transform:translateX(1px)}
  .footer-label{
    display:block;
    margin-bottom:8px;
    font-size:13px;
    color:rgba(232,241,236,.6);
  }
  .footer-input{
    width:100%;
    height:44px;
    padding:0 14px;
    margin-bottom:12px;
    border:1px solid var(--line-dark);
    border-radius:var(--radius-btn);
    background:rgba(255,255,255,.06);
    color:#F3F7F4;
    font-size:14px;
    transition:border-color var(--ease),box-shadow var(--ease);
  }
  .footer-input::placeholder{color:rgba(232,241,236,.45)}
  .footer-input:focus{
    outline:none;
    border-color:var(--brand-500);
    box-shadow:0 0 0 3px rgba(23,192,138,.2);
  }
  .footer-hint{
    margin:10px 0 0;
    font-size:12.5px;
    line-height:1.7;
    color:rgba(232,241,236,.55);
  }
  .footer-bottom{
    margin-top:48px;
    padding-top:20px;
    border-top:1px solid var(--line-dark);
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:12px;
    flex-wrap:wrap;
    font-size:12.5px;
    color:rgba(232,241,236,.55);
  }

  /* ---------- drawer ---------- */
  .drawer{
    position:fixed;
    inset:0;
    z-index:90;
    background:rgba(15,61,51,.45);
    opacity:0;
    visibility:hidden;
    transition:opacity var(--ease),visibility var(--ease);
  }
  .drawer.is-open{opacity:1;visibility:visible}
  .drawer-panel{
    position:absolute;
    top:0;
    right:0;
    height:100%;
    width:min(92vw,380px);
    background:#fff;
    padding:18px 20px 28px;
    overflow-y:auto;
    transform:translateX(100%);
    transition:transform 240ms ease-out;
  }
  .drawer.is-open .drawer-panel{transform:none}
  .drawer-top{
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:12px;
    padding-bottom:16px;
    border-bottom:1px solid var(--line);
  }
  .drawer-close{
    width:44px;
    height:44px;
    display:inline-flex;
    align-items:center;
    justify-content:center;
    border:1px solid var(--line-strong);
    border-radius:var(--radius-btn);
    background:#fff;
    color:var(--ink);
    cursor:pointer;
  }
  .drawer-close:hover{border-color:var(--brand-500);color:var(--brand-700)}
  .drawer-nav{padding:14px 0}
  .drawer-link{
    display:block;
    padding:14px 12px;
    font-size:16px;
    font-weight:500;
    color:var(--ink);
    text-decoration:none;
    border-radius:10px;
    transition:background var(--ease),color var(--ease);
  }
  .drawer-link:hover{background:var(--alt);color:var(--brand-700)}
  .drawer-link.active{
    color:var(--brand-700);
    font-weight:700;
    box-shadow:inset 3px 0 0 var(--brand-500);
    background:var(--alt);
  }
  .drawer-cta{margin-top:16px}
  .drawer-cta .btn{width:100%}
  body.no-scroll{overflow:hidden}

  /* ---------- responsive ---------- */
  @media (max-width:1024px){
    .container{padding:0 24px}
    .section{padding:72px 0}
    .section-tight{padding:56px 0}
    .faq-layout{grid-template-columns:minmax(0,1fr);gap:28px}
    .side-card{position:static;top:auto}
    .footer-grid{grid-template-columns:1fr 1fr}
    .cta-band{padding:32px}
  }

  @media (max-width:1023px){
    .main-nav{display:none}
    .mega-wrap{display:none}
    .nav-toggle{display:inline-flex}
    .header-consult{display:none}
    .header-inner{height:60px}
  }

  @media (max-width:767px){
    .faq-grid{grid-template-columns:minmax(0,1fr)}
    .page-head-inner{padding:8px 0 36px}
    .faq-search{flex-direction:column;max-width:none}
    .faq-search .btn{width:100%}
    .footer-bottom{margin-top:36px}
  }

  @media (max-width:640px){
    .container{padding:0 20px}
    .section{padding:56px 0}
    .section-tight{padding:44px 0}
    .cta-band{flex-direction:column;align-items:flex-start;padding:28px 22px}
    .cta-band .btn{width:100%}
    .footer-grid{grid-template-columns:1fr;gap:30px}
    .side-card{padding:22px 20px}
  }