/* roulang page: index */
/* ================= 1. 设计变量 ================= */
:root{
  --c-brand-900:#0A3A32;
  --c-brand-700:#13564A;
  --c-brand-500:#1A6A5A;
  --c-brand-100:#E8F2EE;
  --c-accent-600:#C9761A;
  --c-accent-500:#E2932A;
  --c-accent-050:#FBF1E1;
  --c-bg:#F7F5F0;
  --c-surface:#FFFFFF;
  --c-surface-2:#F1EEE7;
  --c-ink:#16211F;
  --c-ink-2:#45544F;
  --c-ink-3:#7A8783;
  --c-line:#E4DFD4;
  --c-dark:#0A2B26;
  --font-sans:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,-apple-system,sans-serif;
  --font-num:"SF Mono","JetBrains Mono",ui-monospace,Menlo,Consolas,monospace;
  --r-lg:16px;
  --r-md:14px;
  --r-sm:10px;
  --shadow-sm:0 1px 2px rgba(16,32,30,.04),0 8px 24px -12px rgba(16,32,30,.10);
  --shadow-md:0 12px 32px -12px rgba(16,32,30,.18);
  --ease:cubic-bezier(.2,.7,.3,1);
}

/* ================= 2. 基础重置 ================= */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-ink);
  font-family:var(--font-sans);
  font-size:17px;
  line-height:1.9;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  overflow-x:hidden;
}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0;}
ul,ol{padding:0;list-style:none;}
img{max-width:100%;display:block;border:0;}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;}
button{cursor:pointer;}
a{color:var(--c-brand-500);text-decoration:none;transition:color .16s var(--ease);}
a:hover{color:var(--c-brand-700);}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,[tabindex]:focus-visible{
  outline:2px solid var(--c-accent-500);
  outline-offset:2px;
  border-radius:8px;
}
p{margin-bottom:1.15em;}
.h1,.h2,.h3,.h4{font-family:var(--font-sans);letter-spacing:.005em;}
h1{font-size:clamp(30px,4vw,46px);line-height:1.25;font-weight:800;}
h2{font-size:clamp(24px,2.6vw,32px);line-height:1.3;font-weight:700;margin-top:2.2em;margin-bottom:.8em;}
h3{font-size:clamp(19px,1.6vw,22px);line-height:1.45;font-weight:700;margin-top:1.8em;margin-bottom:.6em;}
h4{font-size:clamp(17px,1.3vw,18px);line-height:1.5;font-weight:700;}
.num{font-family:var(--font-num);font-variant-numeric:tabular-nums;}

/* ================= 3. 容器与栅格 ================= */
.container{max-width:1200px;margin:0 auto;padding:0 24px;width:100%;}
.grid-x{row-gap:24px;}
.grid-x.grid-margin-x{margin-left:-12px;margin-right:-12px;}
.grid-x.grid-margin-x>.cell{margin-left:0;margin-right:0;padding-left:12px;padding-right:12px;}
.clamp-2{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.clamp-3{display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;}

.section{padding:96px 0;}
.section-alt{background:var(--c-surface-2);}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;}
.sec-head h2{margin:8px 0 0;font-size:clamp(23px,2.5vw,32px);}
.sec-head p{margin:10px 0 0;color:var(--c-ink-2);font-size:16px;max-width:640px;}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;color:var(--c-brand-500);letter-spacing:.06em;}
.eyebrow::before{content:"";width:18px;height:2px;border-radius:2px;background:var(--c-accent-500);}
.link-arrow{display:inline-flex;align-items:center;gap:8px;font-size:15px;font-weight:600;color:var(--c-brand-500);white-space:nowrap;}
.link-arrow i{font-size:12px;transition:transform .16s var(--ease);}
.link-arrow:hover{color:var(--c-accent-600);}
.link-arrow:hover i{transform:translateX(3px);}

/* ================= 4. 按钮 / 徽章 ================= */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:15px;font-weight:600;line-height:1;
  border-radius:var(--r-sm);border:1px solid transparent;
  text-decoration:none;white-space:nowrap;
  transition:background .16s var(--ease),color .16s var(--ease),transform .16s var(--ease),border-color .16s var(--ease),box-shadow .16s var(--ease);
}
.btn-40{height:40px;padding:0 18px;}
.btn-48{height:48px;padding:0 26px;font-size:16px;}
.btn-primary{background:var(--c-brand-500);color:#fff;}
.btn-primary:hover{background:var(--c-brand-700);color:#fff;transform:translateY(-1px);box-shadow:0 10px 22px -14px rgba(10,58,50,.7);}
.btn-primary:active{transform:translateY(0);}
.btn-accent{background:var(--c-accent-500);color:#25190A;}
.btn-accent:hover{background:var(--c-accent-600);color:#fff;transform:translateY(-1px);}
.btn-ghost{background:var(--c-surface);color:var(--c-ink);border-color:var(--c-line);}
.btn-ghost:hover{background:var(--c-brand-100);border-color:var(--c-brand-500);color:var(--c-brand-700);transform:translateY(-1px);}
.badge{display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:700;line-height:1;padding:6px 12px;border-radius:999px;background:var(--c-brand-100);color:var(--c-brand-700);}
.badge-accent{background:var(--c-accent-050);color:var(--c-accent-600);}

/* ================= 5. 导航 ================= */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(255,255,255,.86);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--c-line);
  transition:box-shadow .24s var(--ease);
}
.site-header.is-scrolled{box-shadow:0 10px 28px -20px rgba(16,32,30,.45);}
.nav-wrap{max-width:1200px;margin:0 auto;padding:0 24px;height:64px;display:flex;align-items:center;gap:20px;}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--c-ink);font-size:17px;font-weight:600;letter-spacing:.01em;flex:0 0 auto;}
.brand:hover{color:var(--c-ink);}
.brand-mark{width:30px;height:30px;border-radius:9px;background:var(--c-brand-500);display:grid;place-items:center;color:#fff;font-size:13px;flex:0 0 auto;}
.brand-text strong{color:var(--c-brand-700);font-weight:800;}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:6px;}
.nav-link{position:relative;font-size:15px;font-weight:500;color:var(--c-ink-2);padding:8px 14px;border-radius:999px;transition:color .16s var(--ease),background .16s var(--ease);}
.nav-link::after{content:"";position:absolute;left:50%;bottom:2px;width:18px;height:2px;border-radius:2px;background:var(--c-brand-500);transform:translateX(-50%) scaleX(0);transition:transform .2s var(--ease);}
.nav-link:hover{color:var(--c-brand-500);}
.nav-link:hover::after{transform:translateX(-50%) scaleX(1);}
.nav-link.is-active{background:var(--c-brand-100);color:var(--c-brand-700);font-weight:700;}
.nav-link.is-active::after{display:none;}
.nav-actions{margin-left:auto;display:flex;align-items:center;gap:10px;}
.nav-search{display:flex;align-items:center;gap:8px;height:36px;width:250px;padding:0 12px;background:var(--c-surface-2);border:1px solid var(--c-line);border-radius:999px;transition:border-color .16s var(--ease),background .16s var(--ease);}
.nav-search:focus-within{border-color:var(--c-brand-500);background:var(--c-surface);}
.nav-search i{font-size:13px;color:var(--c-ink-3);}
.nav-search input{flex:1;min-width:0;height:100%;border:0;background:transparent;outline:none;font-size:14px;color:var(--c-ink);}
.nav-search input::placeholder{color:var(--c-ink-3);}
.kbd{font-family:var(--font-num);font-size:11px;line-height:1;color:var(--c-ink-2);border:1px solid var(--c-line);border-radius:6px;padding:4px 6px;background:var(--c-surface);}
.icon-btn{width:36px;height:36px;border-radius:var(--r-sm);border:1px solid var(--c-line);background:var(--c-surface);color:var(--c-ink-2);display:inline-flex;align-items:center;justify-content:center;font-size:14px;transition:background .16s var(--ease),color .16s var(--ease),border-color .16s var(--ease);}
.icon-btn:hover{background:var(--c-brand-100);color:var(--c-brand-700);border-color:var(--c-brand-100);}
.hamburger{display:none;}

/* 移动抽屉 */
.reveal.drawer{background:var(--c-surface);border-radius:16px;padding:22px;}
.drawer-title{font-size:15px;font-weight:700;color:var(--c-ink-3);letter-spacing:.08em;margin:0 0 12px;}
.drawer-link{display:flex;align-items:center;height:48px;padding:0 12px;border-radius:12px;color:var(--c-ink);font-size:16px;font-weight:600;border-bottom:1px solid var(--c-line);}
.drawer-link:last-of-type{border-bottom:0;}
.drawer-link:hover{background:var(--c-brand-100);color:var(--c-brand-700);}
.drawer-cta{width:100%;margin-top:16px;}
.reveal .close-button{color:var(--c-ink-3);}

/* ================= 6. 倒计时条 ================= */
.countdown-bar{background:var(--c-dark);border-right:4px solid var(--c-accent-500);}
.countdown-inner{max-width:1200px;margin:0 auto;padding:10px 24px;display:flex;align-items:center;gap:16px;flex-wrap:wrap;}
.cd-tag{display:inline-flex;align-items:center;gap:8px;}
.cd-tag .badge{background:var(--c-accent-500);color:#25190A;padding:5px 10px;}
.cd-tag span{color:#C8D6D1;font-size:13px;}
.cd-groups{margin-left:auto;display:flex;align-items:center;gap:8px;}
.cd-group{display:inline-flex;align-items:baseline;gap:4px;background:rgba(255,255,255,.10);border-radius:999px;padding:4px 12px;}
.cd-num{font-family:var(--font-num);font-size:20px;font-weight:700;color:#fff;font-variant-numeric:tabular-nums;line-height:1.1;}
.cd-unit{font-size:11px;color:#9FB3AD;}

/* ================= 7. Hero ================= */
.hero{position:relative;background:var(--c-bg);padding:88px 0;overflow:hidden;}
.hero::before{
  content:"";position:absolute;left:-80px;top:-60px;width:380px;height:380px;pointer-events:none;
  background-image:radial-gradient(rgba(10,58,50,.5) 1px,transparent 1px);
  background-size:16px 16px;opacity:.07;
}
.hero::after{
  content:"";position:absolute;right:-160px;bottom:-200px;width:660px;height:660px;pointer-events:none;
  background:radial-gradient(circle,rgba(26,106,90,.09) 0%,rgba(26,106,90,0) 68%);
}
.hero .container{position:relative;z-index:2;}
.hero h1{margin:18px 0 18px;}
.hero h1 .hl{color:var(--c-brand-700);}
.hero-sub{font-size:17px;line-height:1.9;color:var(--c-ink-2);max-width:520px;margin:0 0 28px;}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px;}
.trust-row{display:flex;flex-wrap:wrap;align-items:center;gap:14px;margin-top:28px;}
.trust-item{display:inline-flex;align-items:center;gap:7px;font-size:13px;color:var(--c-ink-3);}
.trust-item i{color:var(--c-brand-500);font-size:12px;}
.trust-sep{width:1px;height:14px;background:var(--c-line);}
.hero-visual{position:relative;padding:0 0 26px 0;}
.hero-image{aspect-ratio:16/10;border-radius:var(--r-lg);overflow:hidden;background:var(--c-brand-100);box-shadow:var(--shadow-sm);}
.hero-image img{width:100%;height:100%;object-fit:cover;}
.hero-info-card{
  position:absolute;left:-18px;bottom:0;display:flex;align-items:center;gap:10px;
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-md);
  padding:12px 16px;box-shadow:var(--shadow-md);max-width:290px;
}
.hero-info-card .dot{width:8px;height:8px;border-radius:50%;background:#2FA37E;flex:0 0 auto;box-shadow:0 0 0 4px rgba(47,163,126,.14);}
.hero-info-card p{margin:0;font-size:13px;line-height:1.6;color:var(--c-ink-2);}
.hero-badge{
  position:absolute;right:-8px;top:16px;background:var(--c-accent-050);border:1px solid #F0DCC0;
  color:var(--c-accent-600);font-size:12px;font-weight:700;padding:6px 12px;border-radius:999px;
}

/* ================= 8. 卖点卡 2×2 ================= */
.feature-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);
  padding:28px;height:100%;display:flex;flex-direction:column;
  box-shadow:var(--shadow-sm);
  transition:transform .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease);
}
.feature-card:hover{transform:translateY(-3px);border-color:rgba(26,106,90,.3);box-shadow:var(--shadow-md);}
.feature-num{
  display:inline-block;font-family:var(--font-num);font-size:36px;font-weight:700;line-height:1;
  color:var(--c-brand-500);background:var(--c-brand-100);border-radius:12px;
  padding:8px 14px;margin-bottom:20px;transition:color .24s var(--ease),background .24s var(--ease);
}
.feature-card:hover .feature-num{color:var(--c-accent-600);background:var(--c-accent-050);}
.feature-card h3{margin:0 0 10px;font-size:20px;}
.feature-card p{margin:0 0 18px;font-size:15.5px;line-height:1.85;color:var(--c-ink-2);}
.card-link{margin-top:auto;display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:700;color:var(--c-brand-500);}
.card-link i{font-size:11px;transition:transform .16s var(--ease);}
.card-link:hover{color:var(--c-accent-600);}
.card-link:hover i{transform:translateX(3px);}

/* ================= 9. 亮点图墙 ================= */
.gallery-item{position:relative;display:block;border-radius:var(--r-md);overflow:hidden;background:var(--c-brand-100);}
.gallery-item img{width:100%;height:100%;object-fit:cover;transition:transform .24s var(--ease);}
.gallery-item:hover img{transform:scale(1.03);}
.gallery-shade{position:absolute;inset:0;background:linear-gradient(180deg,rgba(10,43,38,0) 42%,rgba(10,43,38,.74) 100%);}
.gallery-tag{position:absolute;left:16px;bottom:14px;z-index:2;font-size:14px;font-weight:700;color:#fff;letter-spacing:.02em;}
.gallery-note{position:absolute;right:16px;bottom:15px;z-index:2;font-size:12.5px;color:rgba(255,255,255,.78);}
.ratio-16x10{aspect-ratio:16/10;}
.ratio-4x3{aspect-ratio:4/3;}

/* ================= 10. 最新信息 ================= */
.news-lead{display:flex;flex-direction:column;height:100%;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--shadow-sm);transition:transform .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease);}
.news-lead:hover{transform:translateY(-3px);border-color:rgba(26,106,90,.3);box-shadow:var(--shadow-md);}
.news-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--c-brand-100);display:block;}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .24s var(--ease);}
.news-lead:hover .news-thumb img{transform:scale(1.02);}
.news-badge{position:absolute;left:14px;top:14px;background:rgba(255,255,255,.94);color:var(--c-brand-700);font-size:12px;font-weight:700;padding:5px 12px;border-radius:999px;}
.news-lead-body{padding:22px 24px 24px;display:flex;flex-direction:column;flex:1;}
.news-lead-body h3{margin:0 0 10px;font-size:20px;line-height:1.5;transition:color .16s var(--ease);}
.news-lead:hover .news-lead-body h3{color:var(--c-brand-500);}
.news-lead-body p{margin:0 0 18px;font-size:15px;line-height:1.8;color:var(--c-ink-2);}
.news-meta{margin-top:auto;display:flex;align-items:center;gap:10px;font-size:13px;color:var(--c-ink-3);}
.news-meta .sep{width:3px;height:3px;border-radius:50%;background:var(--c-line);}
.news-list{display:flex;flex-direction:column;gap:16px;}
.news-item{display:flex;gap:16px;padding:16px;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-md);box-shadow:var(--shadow-sm);transition:transform .24s var(--ease),border-color .24s var(--ease),box-shadow .24s var(--ease);}
.news-item:hover{transform:translateY(-2px);border-color:rgba(26,106,90,.3);box-shadow:var(--shadow-md);}
.news-item .thumb{flex:0 0 112px;width:112px;height:80px;border-radius:var(--r-sm);overflow:hidden;background:var(--c-brand-100);}
.news-item .thumb img{width:100%;height:100%;object-fit:cover;}
.news-item .body{min-width:0;display:flex;flex-direction:column;justify-content:center;gap:8px;}
.news-item strong{font-size:16px;font-weight:700;line-height:1.55;color:var(--c-ink);transition:color .16s var(--ease);}
.news-item:hover strong{color:var(--c-brand-500);}
.empty-state{
  border:1px dashed #D8D2C6;border-radius:var(--r-lg);padding:48px 24px;text-align:center;
  background:var(--c-surface);
}
.empty-state i{font-size:28px;color:#C6CFCB;margin-bottom:14px;display:block;}
.empty-state p{margin:0 0 10px;color:var(--c-ink-2);font-size:15px;}
.empty-state a{font-size:14px;font-weight:700;}

/* ================= 11. CTA 表单 ================= */
.cta-band{position:relative;background:var(--c-dark);padding:80px 0;overflow:hidden;}
.cta-band::after{content:"";position:absolute;right:-140px;top:-140px;width:520px;height:520px;background:radial-gradient(circle,rgba(226,147,42,.12) 0%,rgba(226,147,42,0) 70%);pointer-events:none;}
.cta-band .container{position:relative;z-index:2;}
.cta-band h2{color:#fff;margin:0 0 14px;font-size:clamp(22px,2.2vw,28px);}
.cta-band .lead{color:#B9C9C4;font-size:16px;line-height:1.85;max-width:520px;margin:0 0 24px;}
.check-list{display:flex;flex-direction:column;gap:12px;}
.check-list li{display:flex;align-items:flex-start;gap:10px;font-size:15px;color:#C8D6D1;}
.check-list i{color:var(--c-accent-500);font-size:14px;margin-top:5px;}
.form-card{background:var(--c-surface);border-radius:var(--r-lg);padding:28px;box-shadow:0 24px 60px -30px rgba(0,0,0,.55);}
.form-card h3{margin:0 0 6px;font-size:19px;}
.form-card .hint{font-size:13px;color:var(--c-ink-3);margin:0 0 20px;}
.field{margin-bottom:16px;}
.field label{display:block;font-size:13px;font-weight:700;color:var(--c-ink-2);margin-bottom:8px;}
.field input,.field textarea{
  width:100%;height:46px;padding:0 14px;border-radius:var(--r-sm);
  border:1px solid var(--c-line);background:var(--c-surface-2);color:var(--c-ink);
  font-size:15px;outline:none;transition:border-color .16s var(--ease),box-shadow .16s var(--ease),background .16s var(--ease);
}
.field textarea{height:auto;min-height:88px;padding:12px 14px;resize:vertical;line-height:1.7;}
.field input::placeholder,.field textarea::placeholder{color:#A7B0AC;}
.field input:focus,.field textarea:focus{border-color:var(--c-brand-500);background:var(--c-surface);box-shadow:0 0 0 3px rgba(26,106,90,.14);}
.form-foot{font-size:12px;color:var(--c-ink-3);line-height:1.7;margin:14px 0 0;}

/* ================= 12. FAQ ================= */
.faq-list{margin:0;}
.faq-list .accordion-item{background:var(--c-surface);border:1px solid var(--c-line);border-radius:12px;margin-bottom:10px;overflow:hidden;box-shadow:var(--shadow-sm);}
.faq-list .accordion-title{
  border:0;padding:18px 22px;font-size:17px;font-weight:700;color:var(--c-ink);line-height:1.5;
  display:flex;align-items:center;justify-content:space-between;gap:16px;background:transparent;
  transition:color .16s var(--ease);
}
.faq-list .accordion-title::before{
  content:"+";order:2;font-family:var(--font-num);font-size:20px;font-weight:700;
  color:var(--c-ink-3);line-height:1;flex:0 0 auto;
  transition:transform .24s var(--ease),color .24s var(--ease);
}
.faq-list .accordion-title[aria-expanded="true"]::before{transform:rotate(45deg);color:var(--c-brand-500);}
.faq-list .accordion-title:hover{color:var(--c-brand-500);background:transparent;}
.faq-list .accordion-content{padding:0 22px 20px;border-top:1px solid var(--c-line);color:var(--c-ink-2);font-size:15.5px;line-height:1.85;}
.faq-list .accordion-content p{margin:16px 0 0;}

/* ================= 13. 页脚 ================= */
.site-footer{background:var(--c-dark);color:#C8D6D1;padding:64px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:48px;}
.footer-brand{display:inline-flex;align-items:center;gap:10px;color:#fff;font-size:17px;font-weight:600;margin-bottom:16px;}
.footer-brand .brand-mark{background:var(--c-accent-500);color:#25190A;}
.footer-brand strong{color:#fff;font-weight:800;}
.footer-about{font-size:14px;line-height:1.85;color:#9FB3AD;margin:0 0 12px;max-width:320px;}
.footer-echo{font-size:13px;color:#7E948D;margin:0;}
.site-footer h4{color:#fff;font-size:15px;margin:0 0 16px;font-weight:700;}
.footer-links{display:flex;flex-direction:column;gap:11px;}
.footer-links a{color:#C8D6D1;font-size:14px;text-decoration:none;transition:color .16s var(--ease);}
.footer-links a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px;}
.footer-info{font-size:14px;line-height:1.9;color:#9FB3AD;}
.footer-info span{display:block;}
.footer-bottom{margin-top:56px;border-top:1px solid rgba(255,255,255,.12);padding:20px 0 24px;}
.footer-bottom .container{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;}
.footer-bottom p{margin:0;font-size:13px;color:#7E948D;}

/* ================= 14. 响应式 ================= */
@media (max-width:1199px){
  .container{padding:0 24px;}
}
@media (max-width:1023px){
  .section{padding:72px 0;}
  .nav-wrap{height:56px;}
  .nav-links{display:none;}
  .nav-search{display:none;}
  .hamburger{display:inline-flex;}
  .hero{padding:72px 0;}
  .hero-visual{margin-top:40px;}
  .hero-info-card{left:0;}
  .hero-badge{right:0;}
  .cta-band{padding:64px 0;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px;}
}
@media (max-width:767px){
  .sec-head{flex-direction:column;align-items:flex-start;gap:14px;margin-bottom:28px;}
  .hero h1{margin:14px 0 14px;}
  .hero-sub{font-size:16.5px;}
  .cta-band form{margin-top:32px;}
}
@media (max-width:639px){
  body{font-size:16.5px;}
  .container{padding:0 20px;}
  .section{padding:56px 0;}
  .grid-x{row-gap:16px;}
  .nav-actions .btn-primary{display:none;}
  .hero{padding:56px 0;}
  .hero-visual{padding-bottom:0;}
  .hero-info-card{position:static;margin-top:14px;max-width:none;}
  .hero-badge{top:12px;}
  .feature-card{padding:20px;}
  .feature-num{font-size:30px;padding:7px 12px;margin-bottom:16px;}
  .news-item{padding:12px;}
  .news-item .thumb{flex:0 0 88px;width:88px;height:66px;}
  .news-item strong{font-size:15px;}
  .news-lead-body{padding:18px 18px 20px;}
  .form-card{padding:22px;}
  .faq-list .accordion-title{padding:16px 18px;font-size:16px;}
  .faq-list .accordion-content{padding:0 18px 18px;}
  .countdown-inner{padding:10px 20px;gap:10px;}
  .cd-groups{margin-left:0;width:100%;justify-content:flex-start;flex-wrap:wrap;}
  .footer-grid{grid-template-columns:1fr;gap:32px;}
  .footer-bottom .container{flex-direction:column;align-items:flex-start;}
}

/* roulang page: article */
:root{
  --c-brand-900:#0A3A32;
  --c-brand-700:#13564A;
  --c-brand-500:#1A6A5A;
  --c-brand-100:#E8F2EE;
  --c-accent-600:#C9761A;
  --c-accent-500:#E2932A;
  --c-accent-050:#FBF1E1;
  --c-bg:#F7F5F0;
  --c-surface:#FFFFFF;
  --c-surface-2:#F1EEE7;
  --c-ink:#16211F;
  --c-ink-2:#45544F;
  --c-ink-3:#7A8783;
  --c-line:#E4DFD4;
  --c-dark:#0A2B26;
  --font-sans:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,sans-serif;
  --font-num:"SF Mono","JetBrains Mono",ui-monospace,Menlo,Consolas,monospace;
  --radius-lg:16px;
  --radius-md:12px;
  --radius-btn:10px;
  --shadow-1:0 1px 2px rgba(16,32,30,.04),0 8px 24px -12px rgba(16,32,30,.10);
  --shadow-2:0 12px 32px -12px rgba(16,32,30,.18);
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-ink);
  font-family:var(--font-sans);
  font-size:17px;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto;border:0;}
a{color:var(--c-brand-700);text-decoration:none;transition:color 160ms var(--ease);}
a:hover,a:focus{color:var(--c-brand-500);}
h1,h2,h3,h4{margin:0;color:var(--c-ink);font-weight:700;letter-spacing:.01em;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button,input,select,textarea{font:inherit;color:inherit;}
button{background:none;border:0;cursor:pointer;}
:focus-visible{outline:2px solid var(--c-accent-500);outline-offset:2px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--c-brand-700);color:#fff;padding:10px 16px;border-radius:0 0 10px 0;z-index:99;}
.skip-link:focus{left:0;}
.section{padding:96px 0;}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.86);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--c-line);
  transition:box-shadow 240ms var(--ease);
}
.site-header.is-scrolled{box-shadow:0 8px 22px -16px rgba(16,32,30,.35);}
.header-inner{display:flex;align-items:center;gap:20px;height:64px;}
.brand{display:flex;align-items:center;gap:10px;color:var(--c-ink);font-size:17px;font-weight:600;white-space:nowrap;}
.brand:hover{color:var(--c-ink);}
.brand-mark{
  width:34px;height:34px;flex:0 0 34px;border-radius:10px;
  background:var(--c-brand-700);color:#fff;display:grid;place-items:center;font-size:15px;
}
.brand strong{color:var(--c-brand-700);font-weight:700;}
.brand-text{font-weight:600;letter-spacing:.01em;}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:6px;}
.nav-link{
  position:relative;font-size:15px;font-weight:500;color:var(--c-ink-2);
  padding:8px 14px;border-radius:999px;transition:color 160ms var(--ease),background 160ms var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:50%;bottom:2px;transform:translateX(-50%);
  width:0;height:2px;border-radius:2px;background:var(--c-brand-500);transition:width 200ms var(--ease);
}
.nav-link:hover{color:var(--c-brand-700);}
.nav-link:hover::after{width:18px;}
.nav-link.is-active{background:var(--c-brand-100);color:var(--c-brand-700);}
.nav-link.is-active::after{width:0;}
.header-actions{display:flex;align-items:center;gap:10px;margin-left:auto;}
.nav-search{
  display:flex;align-items:center;gap:8px;
  width:250px;height:36px;padding:0 10px 0 12px;
  background:var(--c-surface-2);border:1px solid var(--c-line);border-radius:999px;
  transition:border-color 160ms var(--ease),background 160ms var(--ease);
}
.nav-search:focus-within{border-color:var(--c-brand-500);background:var(--c-surface);}
.nav-search i{color:var(--c-ink-3);font-size:13px;}
.nav-search input{
  flex:1;min-width:0;border:0;background:transparent;font-size:14px;color:var(--c-ink);
}
.nav-search input::placeholder{color:var(--c-ink-3);}
.nav-search input:focus{outline:none;}
.keycap{
  font-family:var(--font-num);font-size:11px;color:var(--c-ink-3);
  border:1px solid var(--c-line);border-radius:6px;padding:1px 5px;background:var(--c-surface);
}
.icon-btn{
  width:36px;height:36px;border-radius:10px;border:1px solid var(--c-line);
  background:var(--c-surface);color:var(--c-ink-2);display:grid;place-items:center;
  transition:background 160ms var(--ease),color 160ms var(--ease),border-color 160ms var(--ease);
}
.icon-btn:hover{background:var(--c-brand-100);color:var(--c-brand-700);border-color:#C7DCD4;}
.hamburger{
  width:38px;height:38px;border-radius:10px;border:1px solid var(--c-line);
  background:var(--c-surface);color:var(--c-ink-2);display:none;place-items:center;
}
.hamburger:hover{background:var(--c-brand-100);color:var(--c-brand-700);}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:40px;padding:0 20px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;line-height:1;border:1px solid transparent;
  transition:transform 160ms var(--ease),background 160ms var(--ease),color 160ms var(--ease),border-color 160ms var(--ease),box-shadow 160ms var(--ease);
}
.btn-lg{height:48px;padding:0 26px;font-size:16px;}
.btn-primary{background:var(--c-brand-700);color:#fff;}
.btn-primary:hover,.btn-primary:focus{background:var(--c-brand-900);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-2);}
.btn-accent{background:var(--c-accent-500);color:#22160A;}
.btn-accent:hover,.btn-accent:focus{background:var(--c-accent-600);color:#22160A;transform:translateY(-1px);box-shadow:var(--shadow-2);}
.btn-ghost{background:var(--c-surface);color:var(--c-brand-700);border-color:var(--c-line);}
.btn-ghost:hover,.btn-ghost:focus{background:var(--c-brand-100);color:var(--c-brand-700);border-color:#C7DCD4;transform:translateY(-1px);}
.btn-block{width:100%;}

/* ---------- badge / tag ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;font-weight:600;line-height:1;
  padding:6px 12px;border-radius:999px;
  background:var(--c-brand-100);color:var(--c-brand-700);
}
.badge-accent{background:var(--c-accent-050);color:var(--c-accent-600);}
.tag-list{display:flex;flex-wrap:wrap;gap:10px;}
.tag{
  font-size:13px;color:var(--c-ink-2);background:var(--c-surface);
  border:1px solid var(--c-line);border-radius:999px;padding:7px 14px;
  transition:border-color 160ms var(--ease),color 160ms var(--ease),background 160ms var(--ease);
}
.tag:hover{border-color:var(--c-brand-500);color:var(--c-brand-700);background:var(--c-brand-100);}

/* ---------- breadcrumb ---------- */
.breadcrumb-bar{padding:20px 0 0;background:var(--c-bg);}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--c-ink-3);}
.breadcrumb a{color:var(--c-ink-3);}
.breadcrumb a:hover{color:var(--c-brand-700);}
.breadcrumb .sep{color:#BEB8AA;}
.breadcrumb .current{color:var(--c-ink-2);max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

/* ---------- article head ---------- */
.article-shell{padding:28px 0 96px;}
.article-head{max-width:760px;margin:0 auto;}
.article-head h1{
  font-size:46px;line-height:1.25;margin:18px 0 18px;letter-spacing:.005em;
}
.meta-row{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px 18px;
  font-size:13.5px;color:var(--c-ink-3);
  padding-bottom:22px;border-bottom:1px solid var(--c-line);
}
.meta-row span{display:inline-flex;align-items:center;gap:6px;}
.meta-row i{font-size:12.5px;color:#A9B2AE;}
.meta-row time{font-family:var(--font-num);letter-spacing:.02em;}
.article-lead{
  margin:24px 0 0;padding:4px 0 4px 18px;
  border-left:3px solid var(--c-brand-500);
  font-size:16.5px;line-height:1.85;color:var(--c-ink-2);
}
.article-cover{
  max-width:920px;margin:32px auto;
  border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-1);
  position:relative;background:var(--c-surface-2);
}
.article-cover img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.article-cover figcaption{
  font-size:12.5px;color:var(--c-ink-3);padding:10px 16px;background:var(--c-surface);border-top:1px solid var(--c-line);
}
.cover-fallback{
  aspect-ratio:16/9;display:grid;place-items:center;
  background:linear-gradient(0deg,var(--c-brand-100),var(--c-brand-100));
  color:var(--c-brand-700);font-size:13px;
}

/* ---------- article body ---------- */
.article-body{
  max-width:760px;margin:0 auto;
  font-size:17px;line-height:1.9;color:var(--c-ink-2);
  word-break:break-word;
}
.article-body p{margin:0 0 1.15em;}
.article-body h2{
  font-size:30px;line-height:1.3;color:var(--c-ink);
  margin:2.2em 0 .8em;padding-bottom:.35em;border-bottom:1px solid var(--c-line);
}
.article-body h3{font-size:22px;line-height:1.45;color:var(--c-ink);margin:1.8em 0 .6em;}
.article-body h4{font-size:18px;line-height:1.5;color:var(--c-ink);margin:1.5em 0 .5em;}
.article-body ul,.article-body ol{margin:0 0 1.15em;padding-left:1.35em;}
.article-body ul{list-style:disc;}
.article-body ol{list-style:decimal;}
.article-body li{margin:0 0 .55em;}
.article-body ul li::marker{color:var(--c-brand-500);}
.article-body ol li::marker{color:var(--c-brand-700);font-family:var(--font-num);font-weight:600;}
.article-body a{color:var(--c-brand-700);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px;}
.article-body a:hover{color:var(--c-brand-500);}
.article-body blockquote{
  margin:1.6em 0;padding:18px 22px;background:var(--c-surface);
  border-left:3px solid var(--c-brand-500);border-radius:0 var(--radius-md) var(--radius-md) 0;
  box-shadow:var(--shadow-1);color:var(--c-ink-2);
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{border-radius:14px;margin:1.6em 0;box-shadow:var(--shadow-1);}
.article-body figure{margin:1.6em 0;}
.article-body figcaption{font-size:12.5px;color:var(--c-ink-3);text-align:center;margin-top:10px;}
.article-body hr{border:0;border-top:1px solid var(--c-line);margin:2.4em 0;}
.article-body code{
  font-family:var(--font-num);font-size:.92em;background:var(--c-surface-2);
  padding:2px 6px;border-radius:6px;color:var(--c-brand-900);
}
.article-body pre{
  background:var(--c-dark);color:#D6E4DF;padding:18px 20px;border-radius:var(--radius-md);
  overflow-x:auto;font-family:var(--font-num);font-size:14px;line-height:1.7;margin:1.6em 0;
}
.article-body pre code{background:none;color:inherit;padding:0;}
.article-body table{
  width:100%;min-width:520px;border-collapse:collapse;font-size:15.5px;
}
.article-body .table-scroll,.article-body > table{display:block;overflow-x:auto;}
.article-body > table{white-space:nowrap;}
.article-body th,.article-body td{border:1px solid var(--c-line);padding:10px 14px;text-align:left;}
.article-body th{background:var(--c-surface-2);color:var(--c-ink);font-weight:600;}

.article-empty{
  max-width:760px;margin:32px auto;text-align:center;
  padding:56px 24px;border:1px dashed #D8D2C6;border-radius:var(--radius-lg);
  background:var(--c-surface);
}
.article-empty i{font-size:30px;color:#C3BBA9;}
.article-empty p{margin:14px 0 20px;color:var(--c-ink-2);}

/* ---------- article foot ---------- */
.article-foot{max-width:760px;margin:40px auto 0;}
.article-foot .tag-title{font-size:13px;color:var(--c-ink-3);margin-bottom:12px;}
.pager-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:32px;padding-top:28px;border-top:1px solid var(--c-line);}

/* ---------- section heading ---------- */
.section-head{margin-bottom:40px;max-width:720px;}
.section-head h2{font-size:32px;line-height:1.3;}
.section-head p{margin-top:12px;font-size:15.5px;color:var(--c-ink-2);}

/* ---------- faq ---------- */
.faq-section{background:var(--c-surface-2);}
.faq .accordion{border:0;background:transparent;margin:0;}
.faq .accordion-item{
  border:1px solid var(--c-line);border-radius:var(--radius-md);background:var(--c-surface);
  margin-bottom:10px;overflow:hidden;box-shadow:var(--shadow-1);
  transition:border-color 200ms var(--ease),box-shadow 200ms var(--ease);
}
.faq .accordion-item:hover{border-color:#CFE0D9;box-shadow:var(--shadow-2);}
.faq .accordion-title{
  border:0;background:transparent;color:var(--c-ink);
  font-size:17px;font-weight:600;line-height:1.6;padding:18px 56px 18px 22px;
  transition:color 160ms var(--ease);
}
.faq .accordion-title:hover,.faq .accordion-title:focus{background:var(--c-brand-100);color:var(--c-brand-700);}
.faq .accordion-title::before{
  content:"+";font-family:var(--font-sans);font-size:22px;font-weight:400;line-height:1;
  color:var(--c-brand-500);background:none;border:0;width:auto;height:auto;margin:0;
  position:absolute;right:22px;top:50%;transform:translateY(-50%);
  transition:transform 200ms var(--ease),color 200ms var(--ease);
}
.faq .accordion-item.is-active .accordion-title::before{transform:translateY(-50%) rotate(45deg);color:var(--c-brand-700);}
.faq .accordion-content{
  border:0;border-top:1px solid var(--c-line);background:transparent;
  padding:16px 22px 20px;font-size:15.5px;line-height:1.85;color:var(--c-ink-2);
}

/* ---------- related ---------- */
.related-section{background:var(--c-bg);}
.related-card{
  display:flex;flex-direction:column;height:100%;
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--radius-lg);
  overflow:hidden;box-shadow:var(--shadow-1);
  transition:transform 240ms var(--ease),box-shadow 240ms var(--ease),border-color 240ms var(--ease);
}
.related-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:#CFE0D9;}
.related-card .thumb{overflow:hidden;background:var(--c-surface-2);}
.related-card .thumb img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform 240ms var(--ease);}
.related-card:hover .thumb img{transform:scale(1.03);}
.related-card .body{padding:22px;display:flex;flex-direction:column;gap:10px;flex:1;}
.related-card h3{font-size:18px;line-height:1.5;transition:color 160ms var(--ease);}
.related-card:hover h3{color:var(--c-brand-700);}
.related-card .date{font-family:var(--font-num);font-size:12.5px;color:var(--c-ink-3);margin-top:auto;}

/* ---------- cta band ---------- */
.cta-band{background:var(--c-brand-100);border-top:1px solid #D6E7E0;border-bottom:1px solid #D6E7E0;}
.cta-band-inner{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:24px;
  padding:48px 0;
}
.cta-band h2{font-size:26px;line-height:1.35;}
.cta-band p{margin-top:10px;font-size:15.5px;color:var(--c-ink-2);max-width:620px;}

/* ---------- footer ---------- */
.site-footer{background:var(--c-dark);color:#C8D6D1;padding-top:72px;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.1fr;gap:48px;}
.site-footer h4{color:#fff;font-size:16px;margin-bottom:18px;font-weight:600;}
.footer-brand{display:inline-flex;align-items:center;gap:10px;color:#fff;font-size:17px;font-weight:600;margin-bottom:16px;}
.footer-brand .brand-mark{background:var(--c-brand-500);}
.footer-brand strong{color:#fff;}
.footer-about{font-size:14px;line-height:1.85;color:#A9BDB7;max-width:340px;}
.footer-echo{margin-top:12px;font-size:14px;color:#7FA396;}
.footer-links{display:flex;flex-direction:column;gap:12px;}
.footer-links a{color:#C8D6D1;font-size:14px;transition:color 160ms var(--ease),text-underline-offset 160ms var(--ease);}
.footer-links a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px;}
.footer-info{display:flex;flex-direction:column;gap:12px;font-size:14px;color:#A9BDB7;}
.footer-bottom{margin-top:56px;border-top:1px solid rgba(255,255,255,.12);}
.footer-bottom .container{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;
  padding-top:20px;padding-bottom:20px;
}
.footer-bottom p{font-size:13px;color:#8FA6A0;}

/* ---------- mobile drawer ---------- */
.reveal-overlay{z-index:80;background:rgba(10,43,38,.5);}
.mobile-drawer{
  width:100%;height:100%;max-width:none;top:0;left:0;margin:0;border:0;border-radius:0;
  padding:20px;background:var(--c-surface);overflow-y:auto;
}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-bottom:18px;border-bottom:1px solid var(--c-line);}
.drawer-close{
  width:38px;height:38px;border-radius:10px;border:1px solid var(--c-line);
  background:var(--c-surface);color:var(--c-ink-2);display:grid;place-items:center;font-size:16px;
}
.drawer-close:hover{background:var(--c-brand-100);color:var(--c-brand-700);}
.drawer-search{margin:18px 0 4px;width:100%;}
.drawer-links{display:flex;flex-direction:column;margin:14px 0 20px;}
.drawer-links a{
  display:flex;align-items:center;height:48px;padding:0 14px;border-radius:10px;
  font-size:16px;font-weight:500;color:var(--c-ink-2);
}
.drawer-links a:hover,.drawer-links a.is-active{background:var(--c-brand-100);color:var(--c-brand-700);}

/* ---------- responsive ---------- */
@media (max-width:1023px){
  .section{padding:72px 0;}
  .header-inner{height:56px;gap:12px;}
  .nav-links{display:none;}
  .nav-search{display:none;}
  .nav-cta{display:none;}
  .hamburger{display:grid;}
  .article-shell{padding:20px 0 72px;}
  .article-head h1{font-size:32px;}
  .article-body h2{font-size:24px;margin:1.9em 0 .7em;}
  .article-body h3{font-size:19px;}
  .section-head h2{font-size:24px;}
  .cta-band h2{font-size:22px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .site-footer{padding-top:56px;}
}
@media (max-width:639px){
  body{font-size:16.5px;line-height:1.85;}
  .container{padding:0 20px;}
  .section{padding:56px 0;}
  .article-head h1{font-size:30px;line-height:1.3;}
  .article-lead{font-size:15.5px;}
  .article-cover{margin:24px auto;}
  .article-body{font-size:16.5px;}
  .article-body h2{font-size:22px;}
  .article-body h3{font-size:18.5px;}
  .faq .accordion-title{padding:16px 50px 16px 18px;font-size:16px;}
  .faq .accordion-content{padding:14px 18px 18px;}
  .cta-band-inner{padding:36px 0;}
  .btn{width:100%;}
  .pager-row .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:32px;}
  .footer-bottom .container{flex-direction:column;gap:8px;}
  .breadcrumb .current{white-space:normal;}
}

/* roulang page: category1 */
:root{
  --c-brand-900:#0A3A32;
  --c-brand-700:#13564A;
  --c-brand-500:#1A6A5A;
  --c-brand-100:#E8F2EE;
  --c-accent-600:#C9761A;
  --c-accent-500:#E2932A;
  --c-accent-050:#FBF1E1;
  --c-bg:#F7F5F0;
  --c-surface:#FFFFFF;
  --c-surface-2:#F1EEE7;
  --c-ink:#16211F;
  --c-ink-2:#45544F;
  --c-ink-3:#7A8783;
  --c-line:#E4DFD4;
  --c-dark:#0A2B26;
  --font-sans:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,sans-serif;
  --font-num:"SF Mono","JetBrains Mono",ui-monospace,Menlo,Consolas,monospace;
  --r-lg:16px;
  --r-md:12px;
  --r-sm:10px;
  --shadow-1:0 1px 2px rgba(16,32,30,.04),0 8px 24px -12px rgba(16,32,30,.10);
  --shadow-2:0 12px 32px -12px rgba(16,32,30,.18);
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:17px;
  line-height:1.9;
  color:var(--c-ink);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--c-brand-700);text-decoration:none;transition:color .16s ease;}
a:hover{color:var(--c-brand-500);}
button,input{font-family:inherit;font-size:inherit;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding-left:1.15em;}
:focus-visible{outline:2px solid var(--c-accent-500);outline-offset:2px;border-radius:4px;}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.section{padding:96px 0;}
.section-sm{padding:72px 0;}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:1000;
  background:rgba(255,255,255,.86);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--c-line);
  transition:box-shadow .24s cubic-bezier(.2,.7,.3,1);
}
.site-header.is-scrolled{box-shadow:0 8px 26px -18px rgba(16,32,30,.30);}
.nav-shell{display:flex;align-items:center;gap:20px;height:64px;}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:34px;height:34px;border-radius:10px;
  background:var(--c-brand-700);color:#fff;
  display:grid;place-items:center;font-size:15px;
  box-shadow:0 4px 12px -6px rgba(19,86,74,.6);
}
.brand-text{font-size:16px;color:var(--c-ink);letter-spacing:.2px;white-space:nowrap;}
.brand-text strong{color:var(--c-brand-700);font-weight:700;}

.nav-links{display:flex;align-items:center;gap:4px;margin-left:6px;}
.nav-link{
  position:relative;display:inline-block;
  padding:8px 14px;border-radius:999px;
  font-size:15px;font-weight:500;color:var(--c-ink-2);
  transition:color .16s ease,background .16s ease;
}
.nav-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:1px;height:2px;border-radius:2px;
  background:var(--c-brand-500);transform:scaleX(0);transform-origin:center;
  transition:transform .24s cubic-bezier(.2,.7,.3,1);
}
.nav-link:hover{color:var(--c-brand-700);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--c-brand-700);background:var(--c-brand-100);}
.nav-link.is-active::after{transform:scaleX(0);}

.nav-actions{display:flex;align-items:center;gap:10px;margin-left:auto;}
.search-box{
  display:flex;align-items:center;gap:8px;
  height:36px;width:252px;padding:0 10px 0 13px;
  background:var(--c-surface-2);border:1px solid var(--c-line);border-radius:999px;
  color:var(--c-ink-3);transition:border-color .16s ease,background .16s ease;
}
.search-box:focus-within{border-color:var(--c-brand-500);background:#fff;}
.search-box input{
  flex:1;min-width:0;border:0;background:transparent;outline:none;
  font-size:13.5px;color:var(--c-ink);
}
.search-box input::placeholder{color:var(--c-ink-3);}
.kbd{
  font-family:var(--font-num);font-size:11px;line-height:1;
  padding:5px 6px;border:1px solid var(--c-line);border-radius:6px;
  background:#fff;color:var(--c-ink-3);
}
.icon-btn{
  width:36px;height:36px;display:grid;place-items:center;
  border:1px solid var(--c-line);border-radius:var(--r-sm);
  background:#fff;color:var(--c-ink-2);cursor:pointer;
  transition:background .16s ease,color .16s ease,border-color .16s ease;
}
.icon-btn:hover{background:var(--c-brand-100);color:var(--c-brand-700);border-color:var(--c-brand-100);}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:40px;padding:0 20px;border-radius:var(--r-sm);
  font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;
  transition:transform .16s cubic-bezier(.2,.7,.3,1),background .16s ease,color .16s ease,border-color .16s ease,box-shadow .16s ease;
}
.btn-lg{height:48px;padding:0 26px;font-size:16px;}
.btn-primary{background:var(--c-brand-700);color:#fff;}
.btn-primary:hover{background:var(--c-brand-900);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-2);}
.btn-accent{background:var(--c-accent-500);color:#2A1A05;}
.btn-accent:hover{background:var(--c-accent-600);color:#fff;transform:translateY(-1px);}
.btn-ghost{background:#fff;color:var(--c-ink);border-color:var(--c-line);}
.btn-ghost:hover{background:var(--c-brand-100);color:var(--c-brand-700);border-color:var(--c-brand-100);}
.btn-block{width:100%;}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14.5px;font-weight:600;color:var(--c-brand-700);
}
.btn-text i{transition:transform .2s ease;}
.btn-text:hover i{transform:translateX(3px);}

.menu-toggle{display:none;}
.search-icon-btn{display:none;}

/* ============ 移动端抽屉 ============ */
.drawer.reveal{
  position:fixed;top:0 !important;left:0 !important;right:0 !important;bottom:0 !important;
  width:100%;height:100%;max-width:none;max-height:none;margin:0;padding:0;
  border:0;border-radius:0;background:var(--c-surface);overflow-y:auto;
  transform:none !important;z-index:1200;
}
.drawer.reveal.is-open{display:block;}
.reveal-overlay{background:rgba(10,43,38,.48);}
.drawer-top{
  display:flex;align-items:center;justify-content:space-between;
  height:56px;padding:0 20px;border-bottom:1px solid var(--c-line);
}
.drawer-close{
  width:36px;height:36px;border:1px solid var(--c-line);border-radius:var(--r-sm);
  background:#fff;color:var(--c-ink-2);cursor:pointer;
}
.drawer-close:hover{background:var(--c-brand-100);color:var(--c-brand-700);}
.drawer-search{
  display:flex;align-items:center;gap:10px;margin:16px 20px 4px;
  height:44px;padding:0 14px;border:1px solid var(--c-line);border-radius:999px;
  background:var(--c-surface-2);color:var(--c-ink-3);
}
.drawer-search input{flex:1;min-width:0;border:0;background:transparent;outline:none;font-size:14px;color:var(--c-ink);}
.drawer-links{display:flex;flex-direction:column;padding:8px 0;}
.drawer-links a{
  display:flex;align-items:center;height:48px;padding:0 20px;
  font-size:16px;font-weight:500;color:var(--c-ink-2);
  border-bottom:1px solid var(--c-line);
}
.drawer-links a.is-active{color:var(--c-brand-700);background:var(--c-brand-100);}
.drawer-cta{padding:20px;}

/* ============ 面包屑 ============ */
.crumb-wrap{padding:20px 0 0;}
.crumb{font-size:13px;color:var(--c-ink-3);display:flex;flex-wrap:wrap;align-items:center;gap:8px;}
.crumb a{color:var(--c-ink-3);}
.crumb a:hover{color:var(--c-brand-700);}
.crumb .sep{color:#C7C2B6;}
.crumb .current{color:var(--c-ink-2);}

/* ============ 分类头部 ============ */
.cat-head{
  position:relative;
  padding:48px 0 56px;
  border-bottom:1px solid var(--c-line);
  background:var(--c-bg);
  overflow:hidden;
}
.cat-head::after{
  content:"";position:absolute;right:-120px;bottom:-160px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(26,106,90,.06) 0%,rgba(26,106,90,0) 70%);
  pointer-events:none;
}
.cat-head-inner{position:relative;z-index:1;max-width:820px;}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  height:26px;padding:0 12px;border-radius:999px;
  font-size:12px;font-weight:600;letter-spacing:.3px;
  background:var(--c-brand-100);color:var(--c-brand-700);
}
.badge-accent{background:var(--c-accent-050);color:var(--c-accent-600);}
.cat-head h1{
  font-size:46px;line-height:1.25;font-weight:700;letter-spacing:-.4px;
  margin:18px 0 16px;color:var(--c-ink);
}
.cat-head h1 .hl{color:var(--c-brand-700);}
.cat-head .lead{
  font-size:17px;line-height:1.9;color:var(--c-ink-2);max-width:660px;
}
.head-meta{
  display:flex;flex-wrap:wrap;gap:8px 22px;margin-top:26px;
  font-size:13.5px;color:var(--c-ink-3);
}
.head-meta span{display:inline-flex;align-items:center;gap:7px;}
.head-meta i{color:var(--c-brand-500);font-size:12px;}

/* ============ 通用板块头 ============ */
.sec-head{max-width:720px;margin-bottom:44px;}
.sec-head h2{font-size:32px;line-height:1.3;font-weight:700;letter-spacing:-.3px;margin-bottom:14px;}
.sec-head p{font-size:16.5px;color:var(--c-ink-2);}
.sec-tag{
  display:inline-block;font-size:12.5px;font-weight:600;letter-spacing:1.2px;
  color:var(--c-accent-600);text-transform:uppercase;margin-bottom:12px;
}
.sec-tag::before{
  content:"";display:inline-block;width:22px;height:2px;background:var(--c-accent-500);
  vertical-align:middle;margin-right:9px;border-radius:2px;
}

/* ============ 步骤时间轴 ============ */
.steps{position:relative;padding-top:6px;}
.steps::before{
  content:"";position:absolute;left:19px;top:26px;bottom:40px;width:2px;
  background:linear-gradient(180deg,var(--c-brand-100) 0%,var(--c-line) 100%);
}
.step{
  position:relative;display:grid;grid-template-columns:40px 1fr;gap:26px;
  padding-bottom:44px;
}
.step:last-child{padding-bottom:0;}
.step-no{
  position:relative;z-index:1;
  width:40px;height:40px;border-radius:50%;
  display:grid;place-items:center;
  background:#fff;border:1px solid var(--c-line);
  font-family:var(--font-num);font-size:14px;font-weight:700;color:var(--c-brand-700);
  box-shadow:0 1px 2px rgba(16,32,30,.05);
}
.step.is-key .step-no{background:var(--c-brand-700);border-color:var(--c-brand-700);color:#fff;box-shadow:0 6px 16px -8px rgba(19,86,74,.8);}
.step-body h3{
  font-size:22px;line-height:1.45;font-weight:700;
  margin:2px 0 12px;
}
.step-body p{font-size:16.5px;color:var(--c-ink-2);margin-bottom:.9em;}
.step-body p:last-child{margin-bottom:0;}
.step-list{margin:12px 0 0;padding-left:0;list-style:none;}
.step-list li{
  position:relative;padding-left:22px;font-size:15.5px;color:var(--c-ink-2);
  margin-bottom:6px;
}
.step-list li::before{
  content:"";position:absolute;left:0;top:13px;width:7px;height:7px;border-radius:50%;
  background:var(--c-accent-500);
}
.step-figure{
  margin-top:18px;border:1px solid var(--c-line);border-radius:var(--r-md);overflow:hidden;
  background:var(--c-surface-2);box-shadow:var(--shadow-1);
}
.step-figure img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.step-figure figcaption{
  font-size:12.5px;color:var(--c-ink-3);padding:10px 14px;background:#fff;border-top:1px solid var(--c-line);
}
.mini-note{
  display:flex;gap:12px;margin-top:16px;padding:14px 16px;
  background:var(--c-brand-100);border-radius:var(--r-md);
  font-size:14.5px;color:var(--c-brand-900);
}
.mini-note i{color:var(--c-brand-700);margin-top:4px;}

/* ============ 提示卡 ============ */
.tip-card{
  display:flex;gap:18px;
  height:100%;
  padding:28px;
  background:var(--c-accent-050);
  border:1px solid #F0DFC4;
  border-radius:var(--r-lg);
  transition:transform .24s cubic-bezier(.2,.7,.3,1),box-shadow .24s ease;
}
.tip-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);}
.tip-icon{
  flex:0 0 42px;width:42px;height:42px;border-radius:12px;
  display:grid;place-items:center;
  background:#fff;color:var(--c-accent-600);font-size:17px;
  box-shadow:0 1px 2px rgba(16,32,30,.05);
}
.tip-card h4{font-size:18px;font-weight:700;margin-bottom:10px;color:var(--c-ink);}
.tip-card p{font-size:15px;line-height:1.85;color:var(--c-ink-2);}

/* ============ FAQ ============ */
.faq-wrap{max-width:860px;}
#faqAccordion{margin:0;padding:0;list-style:none;border:0;background:transparent;}
#faqAccordion .accordion-item{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-md);
  margin-bottom:10px;
  overflow:hidden;
  transition:border-color .2s ease,box-shadow .2s ease;
}
#faqAccordion .accordion-item:hover{border-color:#CFD9D4;}
#faqAccordion .accordion-item.is-active{border-color:var(--c-brand-100);box-shadow:var(--shadow-1);}
#faqAccordion .accordion-title{
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  width:100%;padding:18px 22px;
  font-size:17px;font-weight:600;color:var(--c-ink);
  background:transparent;border:0;text-align:left;line-height:1.6;
}
#faqAccordion .accordion-title:hover{color:var(--c-brand-700);}
#faqAccordion .accordion-title::before{display:none;content:none;}
#faqAccordion .accordion-title::after{
  content:"";flex:0 0 14px;width:14px;height:14px;
  background:
    linear-gradient(var(--c-brand-700),var(--c-brand-700)) center/14px 2px no-repeat,
    linear-gradient(var(--c-brand-700),var(--c-brand-700)) center/2px 14px no-repeat;
  transition:transform .24s cubic-bezier(.2,.7,.3,1),opacity .2s ease;
}
#faqAccordion .accordion-item.is-active .accordion-title::after{transform:rotate(45deg);}
#faqAccordion .accordion-content{
  display:none;padding:0 22px 20px;margin:0;border:0;background:transparent;
  font-size:15.5px;line-height:1.85;color:var(--c-ink-2);border-top:1px solid var(--c-line);padding-top:16px;
}
#faqAccordion .accordion-item.is-active .accordion-content{display:block;}

/* ============ 转化条 ============ */
.cta-band{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:26px;
  padding:40px 44px;
  background:var(--c-brand-100);
  border:1px solid #D7E6E0;
  border-radius:var(--r-lg);
}
.cta-band h2{font-size:26px;line-height:1.4;font-weight:700;margin-bottom:10px;}
.cta-band p{font-size:15.5px;color:var(--c-ink-2);max-width:560px;}
.cta-band-actions{display:flex;align-items:center;gap:14px;flex-wrap:wrap;}

/* ============ 页脚 ============ */
.site-footer{background:var(--c-dark);color:#C8D6D1;margin-top:0;}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:48px;
  padding:72px 0 48px;
}
.footer-brand{
  display:inline-flex;align-items:center;gap:10px;
  color:#fff;font-size:16px;font-weight:500;margin-bottom:16px;
}
.footer-brand .brand-mark{background:var(--c-brand-500);box-shadow:none;}
.footer-brand strong{color:#fff;font-weight:700;}
.footer-about{font-size:14.5px;line-height:1.9;color:#A9BDB7;max-width:340px;}
.footer-echo{font-size:14px;color:#8FA6A0;margin-top:12px;}
.site-footer h4{font-size:15px;font-weight:700;color:#fff;margin-bottom:18px;}
.footer-links{display:flex;flex-direction:column;gap:12px;}
.footer-links a{
  font-size:14.5px;color:#C8D6D1;text-decoration:none;
  transition:color .16s ease,text-underline-offset .16s ease;
}
.footer-links a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px;}
.footer-info{display:flex;flex-direction:column;gap:12px;font-size:14.5px;color:#A9BDB7;}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding:22px 0;}
.footer-bottom .container{display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;}
.footer-bottom p{font-size:13px;color:#8FA6A0;}

/* ============ 响应式 ============ */
@media screen and (max-width:1023px){
  .nav-shell{height:56px;}
  .nav-links,.search-box{display:none;}
  .menu-toggle,.search-icon-btn{display:grid;}
  .section{padding:72px 0;}
  .section-sm{padding:56px 0;}
  .cat-head{padding:36px 0 44px;}
  .cat-head h1{font-size:32px;}
  .sec-head h2{font-size:26px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px;padding:56px 0 40px;}
  .cta-band{padding:32px;}
}
@media screen and (max-width:639px){
  body{font-size:16.5px;}
  .container{padding:0 20px;}
  .section{padding:56px 0;}
  .section-sm{padding:44px 0;}
  .brand-text{font-size:15px;}
  .cat-head h1{font-size:27px;}
  .cat-head .lead{font-size:16px;}
  .sec-head h2{font-size:24px;}
  .step{grid-template-columns:32px 1fr;gap:16px;padding-bottom:34px;}
  .steps::before{left:15px;top:22px;}
  .step-no{width:32px;height:32px;font-size:12.5px;}
  .step-body h3{font-size:19px;}
  .tip-card{padding:20px;}
  #faqAccordion .accordion-title{padding:16px 18px;font-size:16px;}
  #faqAccordion .accordion-content{padding:14px 18px 18px;}
  .cta-band{padding:26px 22px;flex-direction:column;align-items:flex-start;}
  .cta-band-actions{width:100%;}
  .cta-band-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:32px;}
}

/* roulang page: category2 */
:root{
  --c-brand-900:#0A3A32;--c-brand-700:#13564A;--c-brand-500:#1A6A5A;--c-brand-100:#E8F2EE;
  --c-accent-600:#C9761A;--c-accent-500:#E2932A;--c-accent-050:#FBF1E1;
  --c-bg:#F7F5F0;--c-surface:#FFFFFF;--c-surface-2:#F1EEE7;
  --c-ink:#16211F;--c-ink-2:#45544F;--c-ink-3:#7A8783;--c-line:#E4DFD4;--c-dark:#0A2B26;
  --font-sans:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,sans-serif;
  --font-num:"SF Mono","JetBrains Mono",ui-monospace,Menlo,Consolas,monospace;
  --r-lg:16px;--r-sm:12px;--r-btn:10px;
  --sh-1:0 1px 2px rgba(16,32,30,.04),0 8px 24px -12px rgba(16,32,30,.10);
  --sh-2:0 12px 32px -12px rgba(16,32,30,.18);
  --sp-1:4px;--sp-2:8px;--sp-3:12px;--sp-4:16px;--sp-5:24px;--sp-6:32px;--sp-7:48px;--sp-8:64px;--sp-9:96px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--c-bg);color:var(--c-ink);
  font-family:var(--font-sans);font-size:17px;line-height:1.9;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--c-brand-500);text-decoration:none;transition:color 160ms cubic-bezier(.2,.7,.3,1)}
a:hover{color:var(--c-brand-700)}
p{margin:0 0 1.15em}
h1,h2,h3,h4{margin:0;color:var(--c-ink);font-weight:700;letter-spacing:.01em}
h1{font-size:32px;line-height:1.25}
h2{font-size:24px;line-height:1.3;margin:2.2em 0 .8em}
h3{font-size:19px;line-height:1.45;margin:1.8em 0 .6em;font-weight:600}
h4{font-size:17px;line-height:1.5;margin:1.6em 0 .5em;font-weight:600}
ul,ol{margin:0 0 1.15em;padding-left:1.25em}
li{margin-bottom:.4em}
button,input{font-family:inherit;font-size:inherit}
:focus-visible{outline:2px solid var(--c-accent-500);outline-offset:2px;border-radius:4px}
.container{max-width:1200px;margin:0 auto;padding:0 24px;width:100%}
.section{padding:96px 0}
.section-tight{padding:64px 0}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.86);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  border-bottom:1px solid var(--c-line);
  transition:box-shadow 240ms cubic-bezier(.2,.7,.3,1);
}
.site-header.is-scrolled{box-shadow:0 6px 24px -16px rgba(16,32,30,.35)}
.header-inner{display:flex;align-items:center;gap:24px;height:64px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--c-ink)}
.brand:hover{color:var(--c-ink)}
.brand-mark{
  width:34px;height:34px;border-radius:10px;display:inline-flex;align-items:center;justify-content:center;
  background:var(--c-brand-500);color:#fff;font-size:15px;
}
.brand-text{font-size:17px;font-weight:600;color:var(--c-ink);white-space:nowrap}
.brand-text strong{font-weight:700;color:var(--c-brand-500);margin-right:1px}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:8px}
.nav-link{
  font-size:15px;font-weight:500;color:var(--c-ink-2);
  padding:8px 14px;border-radius:999px;position:relative;
  transition:color 160ms cubic-bezier(.2,.7,.3,1),background 160ms cubic-bezier(.2,.7,.3,1);
}
.nav-link:hover{color:var(--c-brand-500)}
.nav-link:hover::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;border-radius:2px;background:var(--c-brand-500);
}
.nav-link.is-active{background:var(--c-brand-100);color:var(--c-brand-700)}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:10px}
.cmd-search{
  display:flex;align-items:center;gap:8px;height:36px;width:240px;padding:0 10px;
  background:var(--c-surface-2);border:1px solid var(--c-line);border-radius:999px;color:var(--c-ink-3);
}
.cmd-search i{font-size:13px}
.cmd-search input{
  border:0;background:transparent;flex:1;min-width:0;height:100%;color:var(--c-ink);font-size:14px;outline:none;
}
.cmd-search input::placeholder{color:var(--c-ink-3)}
.cmd-search kbd{
  font-family:var(--font-num);font-size:11px;line-height:1;padding:4px 6px;border:1px solid var(--c-line);
  border-radius:6px;background:#fff;color:var(--c-ink-3);
}
.icon-btn{
  width:36px;height:36px;border-radius:10px;display:inline-flex;align-items:center;justify-content:center;
  color:var(--c-ink-2);border:1px solid transparent;
  transition:background 160ms cubic-bezier(.2,.7,.3,1),color 160ms cubic-bezier(.2,.7,.3,1);
}
.icon-btn:hover{background:var(--c-brand-100);color:var(--c-brand-700)}
.hamburger{
  display:none;width:40px;height:40px;border:1px solid var(--c-line);background:#fff;border-radius:10px;
  color:var(--c-ink);align-items:center;justify-content:center;cursor:pointer;
}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:40px;padding:0 18px;border-radius:var(--r-btn);border:1px solid transparent;
  font-size:15px;font-weight:600;line-height:1;cursor:pointer;text-decoration:none;white-space:nowrap;
  transition:background 160ms cubic-bezier(.2,.7,.3,1),color 160ms cubic-bezier(.2,.7,.3,1),
             transform 160ms cubic-bezier(.2,.7,.3,1),box-shadow 160ms cubic-bezier(.2,.7,.3,1),
             border-color 160ms cubic-bezier(.2,.7,.3,1);
}
.btn-primary{background:var(--c-brand-500);color:#fff}
.btn-primary:hover{background:var(--c-brand-700);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-1)}
.btn-accent{background:var(--c-accent-500);color:#1B1205}
.btn-accent:hover{background:var(--c-accent-600);color:#1B1205;transform:translateY(-1px)}
.btn-ghost{background:#fff;border-color:var(--c-line);color:var(--c-ink)}
.btn-ghost:hover{background:var(--c-brand-100);border-color:var(--c-brand-100);color:var(--c-brand-700)}
.btn-lg{height:48px;padding:0 24px;font-size:16px}
.btn-block{width:100%}
.link-arrow{font-size:15px;font-weight:600;display:inline-flex;align-items:center;gap:6px}
.link-arrow i{font-size:12px;transition:transform 160ms cubic-bezier(.2,.7,.3,1)}
.link-arrow:hover i{transform:translateX(3px)}

/* ---------- breadcrumb ---------- */
.crumb{padding:24px 0 0;font-size:13px;color:var(--c-ink-3)}
.crumb a{color:var(--c-ink-3)}
.crumb a:hover{color:var(--c-brand-500)}
.crumb span.sep{margin:0 8px;color:#C9C3B7}
.crumb .current{color:var(--c-ink-2)}

/* ---------- page head ---------- */
.page-head{padding:40px 0 8px}
.page-head-inner{max-width:760px;margin:0 auto;text-align:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:12.5px;font-weight:600;letter-spacing:.06em;
  color:var(--c-brand-700);background:var(--c-brand-100);border-radius:999px;padding:6px 14px;margin-bottom:18px;
}
.page-head h1{margin-bottom:16px}
.page-head h1 .hl{color:var(--c-brand-500)}
.page-head p{color:var(--c-ink-2);font-size:17px;margin-bottom:0}
.head-rule{width:56px;height:3px;border-radius:3px;background:var(--c-accent-500);margin:24px auto 0}

/* ---------- point cards ---------- */
.point-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);
  padding:28px;height:100%;display:flex;flex-direction:column;
  box-shadow:var(--sh-1);
  transition:transform 240ms cubic-bezier(.2,.7,.3,1),border-color 240ms cubic-bezier(.2,.7,.3,1),
             box-shadow 240ms cubic-bezier(.2,.7,.3,1);
}
.point-card:hover{transform:translateY(-3px);border-color:rgba(26,106,90,.3);box-shadow:var(--sh-2)}
.point-num{
  font-family:var(--font-num);font-size:30px;font-weight:700;line-height:1;color:var(--c-brand-500);
  opacity:.24;margin-bottom:14px;letter-spacing:-.02em;
}
.point-card h3{margin:0 0 10px;font-size:21px}
.point-card p{color:var(--c-ink-2);font-size:16px;margin-bottom:16px}
.point-card .link-arrow{margin-top:auto}
.grid-gap{margin-left:-12px;margin-right:-12px}
.grid-gap>.cell{padding-left:12px;padding-right:12px;margin-bottom:24px}

/* ---------- checklist block ---------- */
.check-block{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);
  padding:32px;box-shadow:var(--sh-1);
}
.check-block h2{margin-top:0}
.check-list{list-style:none;margin:24px 0 0;padding:0}
.check-list li{
  display:flex;gap:12px;align-items:flex-start;padding:14px 0;border-top:1px solid var(--c-line);
  font-size:16px;color:var(--c-ink-2);margin:0;
}
.check-list li:first-child{border-top:0;padding-top:0}
.check-box{
  flex:0 0 auto;width:22px;height:22px;border-radius:6px;border:1px solid var(--c-brand-500);
  background:var(--c-brand-100);color:var(--c-brand-700);display:inline-flex;align-items:center;
  justify-content:center;font-size:11px;margin-top:3px;
}
.check-list strong{color:var(--c-ink);font-weight:600}
.check-note{margin-top:22px;font-size:14px;color:var(--c-ink-3)}
.figure{
  border-radius:14px;overflow:hidden;border:1px solid var(--c-line);background:var(--c-surface-2);
  box-shadow:var(--sh-1);
}
.figure img{width:100%;aspect-ratio:4/3;object-fit:cover}
.figure figcaption{font-size:12.5px;color:var(--c-ink-3);padding:12px 16px;background:#fff;border-top:1px solid var(--c-line)}

/* ---------- signal (dark) ---------- */
.signal-band{background:var(--c-dark);color:#C8D6D1;padding:88px 0}
.signal-band h2{color:#fff;margin-top:0}
.signal-band .lead{color:#A9BFB8;font-size:16px;max-width:640px}
.signal-row{
  display:flex;gap:24px;align-items:flex-start;padding:20px 0;border-top:1px solid rgba(255,255,255,.12);
}
.signal-row:first-of-type{border-top:0}
.signal-tag{
  flex:0 0 auto;min-width:150px;display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;color:var(--c-accent-500);
}
.signal-row p{margin:0;color:#D6E2DE;font-size:16px}
.signal-row p strong{color:#fff;font-weight:600}

/* ---------- accordion ---------- */
.accordion{border:0;background:transparent;margin:0}
.accordion-item{
  border:1px solid var(--c-line)!important;border-radius:var(--r-sm);background:#fff;
  margin-bottom:10px;overflow:hidden;box-shadow:none;
}
.accordion-title{
  border:0!important;padding:18px 22px;font-size:17px;font-weight:600;color:var(--c-ink);
  background:#fff;line-height:1.6;transition:color 160ms cubic-bezier(.2,.7,.3,1),background 160ms cubic-bezier(.2,.7,.3,1);
}
.accordion-title::before,.accordion-title::after{display:none!important}
.accordion-title:hover{background:#FCFBF8;color:var(--c-brand-700)}
.accordion-title .acc-icon{
  float:right;margin-left:16px;color:var(--c-ink-3);font-size:14px;
  transition:transform 240ms cubic-bezier(.2,.7,.3,1),color 240ms cubic-bezier(.2,.7,.3,1);
}
.accordion-item.is-active .accordion-title{color:var(--c-brand-700)}
.accordion-item.is-active .accordion-title .acc-icon{transform:rotate(45deg);color:var(--c-brand-500)}
.accordion-content{
  border:0!important;border-top:1px solid var(--c-line)!important;padding:18px 22px 22px!important;
  background:#fff;color:var(--c-ink-2);font-size:15.5px;line-height:1.85;
}
.accordion-content p:last-child{margin-bottom:0}

/* ---------- convert ---------- */
.convert{
  background:var(--c-brand-100);border:1px solid #D5E5DE;border-radius:var(--r-lg);
  padding:32px;display:flex;align-items:center;gap:24px;flex-wrap:wrap;justify-content:space-between;
}
.convert h2{margin:0 0 8px;font-size:22px}
.convert p{margin:0;color:var(--c-ink-2);font-size:15.5px}
.convert-actions{display:flex;gap:12px;flex-wrap:wrap}
.back-row{margin-top:32px;text-align:center;font-size:15px}

/* ---------- drawer ---------- */
.drawer{padding:0;border:0;border-radius:0;width:100%;height:100%;max-width:100%;top:0;left:0;background:#fff}
.drawer .drawer-head{
  display:flex;align-items:center;justify-content:space-between;height:56px;padding:0 20px;
  border-bottom:1px solid var(--c-line);
}
.drawer .drawer-body{padding:16px 20px 32px}
.drawer .drawer-link{
  display:flex;align-items:center;justify-content:space-between;height:48px;font-size:16px;font-weight:500;
  color:var(--c-ink-2);border-bottom:1px solid var(--c-line);
}
.drawer .drawer-link.is-active{color:var(--c-brand-700);font-weight:600}
.drawer .drawer-cta{margin-top:24px}
.close-button{color:var(--c-ink);font-size:20px;top:auto;right:auto;position:static;line-height:1}

/* ---------- footer ---------- */
.site-footer{background:var(--c-dark);color:#C8D6D1;padding:64px 0 0;font-size:15px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px}
.site-footer h4{color:#fff;font-size:15px;margin:0 0 16px;font-weight:600}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-size:17px;font-weight:600;margin-bottom:16px}
.footer-brand .brand-mark{background:var(--c-brand-500)}
.footer-brand strong{font-weight:700;color:#8FD3C1;margin-right:1px}
.footer-about{margin:0 0 12px;color:#B6C8C2;font-size:14.5px;line-height:1.85}
.footer-echo{margin:0;color:#8FD3C1;font-size:14px}
.footer-links{display:flex;flex-direction:column;gap:12px}
.footer-links a{color:#C8D6D1;font-size:14.5px;width:fit-content}
.footer-links a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px}
.footer-info{display:flex;flex-direction:column;gap:12px;color:#B6C8C2;font-size:14.5px}
.footer-bottom{margin-top:48px;border-top:1px solid rgba(255,255,255,.12);padding:20px 0}
.footer-bottom .container{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap}
.footer-bottom p{margin:0;font-size:13px;color:#93A8A2}

@media (min-width:1024px){
  h1{font-size:46px}
  h2{font-size:32px}
  h3{font-size:22px}
  h4{font-size:18px}
}
@media (max-width:1023px){
  .section{padding:72px 0}
  .section-tight{padding:48px 0}
  .nav-links{display:none}
  .cmd-search{display:none}
  .hamburger{display:inline-flex}
  .header-inner{height:56px}
  .signal-band{padding:64px 0}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:639px){
  body{font-size:16.5px}
  .container{padding:0 20px}
  .section{padding:56px 0}
  .section-tight{padding:40px 0}
  .point-card,.check-block{padding:20px}
  .convert{padding:24px;flex-direction:column;align-items:flex-start}
  .signal-row{flex-direction:column;gap:6px}
  .signal-tag{min-width:0}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom .container{flex-direction:column}
  .brand-text{font-size:15.5px}
  h2{margin-top:1.8em}
}