/* roulang page: index */
:root{
  --brand-600:#1F5C46;
  --brand-800:#143D2E;
  --brand-100:#E4EFE9;
  --accent-500:#E07A3C;
  --accent-700:#B85A22;
  --accent-100:#FBE9DC;
  --bg:#F7F5F0;
  --surface:#FFFFFF;
  --surface-2:#EFF3EF;
  --ink-900:#0F1E19;
  --text-2:#5A6A62;
  --line:#DDE3DC;
  --ok:#2E7D5B;
  --warn:#C2502B;
  --info:#3A6E8F;
  --radius-card:14px;
  --radius-img:12px;
  --radius-btn:10px;
  --radius-pill:999px;
  --shadow-sm:0 1px 2px rgba(15,30,25,.06);
  --shadow-md:0 8px 24px -12px rgba(15,30,25,.18);
  --shadow-lg:0 24px 48px -24px rgba(15,30,25,.24);
  --container:1200px;
  --ease:cubic-bezier(.22,.61,.36,1);
  --font-sans:"Noto Sans SC","HarmonyOS Sans","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --font-serif:"Noto Serif SC","Source Han Serif SC","Songti SC","STSong",Georgia,serif;
}
*,*::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:1.85;
  color:var(--ink-900);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{display:block;max-width:100%;height:auto}
a{color:var(--brand-600);text-decoration:none;transition:color .18s var(--ease)}
a:hover{color:var(--brand-800)}
h1,h2,h3,h4{margin:0;font-family:var(--font-serif);font-weight:700;letter-spacing:.01em;color:var(--ink-900);line-height:1.32}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
button,input{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--brand-600);outline-offset:2px;border-radius:4px}
input:focus-visible{outline:none}

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

/* ---------- 按钮体系 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:12px 22px;border-radius:var(--radius-btn);
  border:1px solid transparent;font-size:15px;font-weight:500;line-height:1.2;
  cursor:pointer;text-align:center;white-space:nowrap;
  transition:background-color .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease),transform .18s var(--ease),box-shadow .18s var(--ease);
}
.btn-primary{background:var(--brand-600);color:#fff;box-shadow:var(--shadow-sm)}
.btn-primary:hover{background:var(--brand-800);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-md)}
.btn-primary:active{transform:translateY(0);box-shadow:var(--shadow-sm)}
.btn-accent{background:var(--accent-500);color:#fff;box-shadow:var(--shadow-sm)}
.btn-accent:hover{background:var(--accent-700);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-md)}
.btn-accent:active{transform:translateY(0);box-shadow:var(--shadow-sm)}
.btn-outline{border-color:var(--line);color:var(--ink-900);background:transparent}
.btn-outline:hover{background:var(--surface-2);border-color:var(--brand-600);color:var(--brand-600)}
.btn:disabled,.btn[disabled]{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none}
.btn-sm{min-height:38px;padding:9px 16px;font-size:14px}
.btn-block{width:100%}
.link-arrow{display:inline-flex;align-items:center;gap:6px;color:var(--brand-600);font-weight:500;font-size:15px}
.link-arrow::after{content:"→";transition:transform .18s var(--ease)}
.link-arrow:hover{color:var(--brand-800)}
.link-arrow:hover::after{transform:translateX(3px)}

/* ---------- 徽章 / 标签 ---------- */
.badge{display:inline-flex;align-items:center;height:24px;padding:0 9px;border-radius:6px;background:var(--accent-100);color:#9A4A18;font-size:13px;font-weight:500;letter-spacing:.01em}
.tag{display:inline-flex;align-items:center;height:28px;padding:0 12px;border-radius:var(--radius-pill);border:1px solid var(--line);background:var(--surface);color:var(--text-2);font-size:13px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;height:30px;padding:0 14px;border-radius:var(--radius-pill);background:var(--brand-100);color:var(--brand-600);font-size:13px;font-weight:500;letter-spacing:.02em}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent-500)}

/* ---------- 头部导航 ---------- */
.site-header{position:sticky;top:0;z-index:80;background:rgba(247,245,240,.95);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.header-inner{display:flex;align-items:center;gap:20px;min-height:76px}
.logo{display:flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--ink-900)}
.logo-mark{width:38px;height:38px;flex:0 0 38px;border-radius:11px;background:var(--brand-600);display:grid;place-items:center}
.logo-mark svg{width:22px;height:22px;display:block}
.logo-text{font-family:var(--font-serif);font-size:19px;font-weight:700;letter-spacing:.01em;white-space:nowrap}
.logo:hover .logo-text{color:var(--brand-600)}
.search{position:relative;flex:1 1 260px;min-width:0;max-width:560px;margin:0 auto}
.search input[type="search"]{
  width:100%;height:44px;border-radius:var(--radius-pill);border:1px solid var(--line);
  background:var(--surface);padding:0 20px 0 46px;font-size:15px;color:var(--ink-900);
  transition:border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.search input[type="search"]::placeholder{color:#8B9A92}
.search input[type="search"]:focus{border-color:var(--brand-600);box-shadow:0 0 0 3px rgba(31,92,70,.18)}
.search-btn{position:absolute;left:7px;top:50%;transform:translateY(-50%);width:34px;height:34px;border:0;border-radius:50%;background:transparent;display:grid;place-items:center;cursor:pointer;color:var(--text-2);transition:background-color .18s var(--ease),color .18s var(--ease)}
.search-btn:hover{background:var(--brand-100);color:var(--brand-600)}
.search-btn svg{width:18px;height:18px;display:block}
.nav-links{display:flex;align-items:center;gap:4px;flex:0 0 auto}
.nav-link{position:relative;padding:8px 10px;font-size:15px;color:var(--ink-900);border-radius:8px;white-space:nowrap;transition:background-color .18s var(--ease),color .18s var(--ease)}
.nav-link:hover{color:var(--brand-600);background:var(--brand-100)}
.nav-link.is-active{color:var(--brand-600);font-weight:700}
.nav-link.is-active::after{content:"";position:absolute;left:10px;right:10px;bottom:2px;height:2px;border-radius:2px;background:var(--accent-500)}
.header-chips{border-top:1px solid var(--line);background:rgba(255,255,255,.62)}
.chips-scroll{display:flex;gap:8px;overflow-x:auto;padding-top:10px;padding-bottom:10px;scrollbar-width:none}
.chips-scroll::-webkit-scrollbar{display:none}
.chip{flex:0 0 auto;display:inline-flex;align-items:center;height:32px;padding:0 14px;border-radius:8px;background:var(--surface-2);color:var(--text-2);font-size:13px;white-space:nowrap;transition:background-color .18s var(--ease),color .18s var(--ease),box-shadow .18s var(--ease)}
.chip:hover{background:var(--brand-100);color:var(--brand-600)}
.chip.is-active{background:var(--brand-100);color:var(--brand-600);font-weight:700;box-shadow:inset 0 -2px 0 var(--accent-500)}
.menu-toggle{display:none;width:44px;height:44px;flex:0 0 44px;border:1px solid var(--line);border-radius:10px;background:var(--surface);cursor:pointer;align-items:center;justify-content:center;transition:background-color .18s var(--ease),border-color .18s var(--ease)}
.menu-toggle:hover{background:var(--surface-2);border-color:var(--brand-600)}
.menu-toggle svg{width:20px;height:20px}
.mobile-drawer{display:none;border-top:1px solid var(--line);background:var(--surface);padding:18px 0 22px}
.mobile-drawer.is-open{display:block}
.mobile-drawer .search{max-width:none;margin:0 0 16px}
.drawer-nav{display:flex;flex-direction:column}
.drawer-link{padding:14px 2px;font-size:16px;color:var(--ink-900);border-bottom:1px solid var(--line)}
.drawer-link:last-child{border-bottom:0}
.drawer-link:hover{color:var(--brand-600)}
.drawer-link.is-active{color:var(--brand-600);font-weight:700}

/* ---------- 首屏 ---------- */
.hero{position:relative;overflow:hidden;background:var(--bg);padding:86px 0 72px}
.hero::before{content:"";position:absolute;inset:0;background:url('/assets/images/backpic/back-1.webp') center/cover no-repeat;opacity:.13}
.hero::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(247,245,240,.72) 0%,rgba(247,245,240,.98) 76%)}
.hero .container{position:relative;z-index:2}
.hero-grid{display:grid;grid-template-columns:55fr 45fr;gap:52px;align-items:center}
.hero h1{font-size:44px;line-height:1.25;margin:22px 0 0}
.hero-sub{margin-top:18px;font-size:18px;line-height:1.75;color:var(--text-2);max-width:520px}
.hero-actions{margin-top:30px;display:flex;flex-wrap:wrap;gap:14px}
.trust-tags{margin-top:26px;display:flex;flex-wrap:wrap;gap:20px}
.trust-tags span{display:inline-flex;align-items:center;gap:7px;font-size:14px;color:var(--text-2)}
.trust-tags span::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent-500);flex:0 0 6px}
.hero-visual img{width:100%;aspect-ratio:5/4;object-fit:cover;border-radius:var(--radius-img);border:1px solid var(--line);box-shadow:var(--shadow-lg)}

/* ---------- 指标带 ---------- */
.metrics{margin-top:60px;display:grid;grid-template-columns:repeat(4,1fr);background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);box-shadow:var(--shadow-sm);position:relative;z-index:2}
.metric{position:relative;padding:24px 24px}
.metric::after{content:"";position:absolute;right:0;top:24px;bottom:24px;width:1px;background:var(--line)}
.metric:last-child::after{display:none}
.metric strong{display:block;font-family:var(--font-sans);font-size:36px;font-weight:600;letter-spacing:-.01em;line-height:1.1;color:var(--accent-500);font-variant-numeric:tabular-nums}
.metric span{display:block;margin-top:8px;font-size:14px;color:var(--text-2);line-height:1.6}

/* ---------- 通用板块 ---------- */
.section{padding:96px 0}
.section-alt{background:var(--surface-2)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:28px;margin-bottom:40px;flex-wrap:wrap}
.section-head h2{font-size:32px;line-height:1.3;max-width:760px}
.section-head p{margin-top:12px;font-size:16px;color:var(--text-2);max-width:660px;line-height:1.8}

/* ---------- 痛点 ---------- */
.pain-list{display:grid;gap:0;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden}
.pain-item{display:flex;gap:18px;padding:26px 28px 26px 26px;border-left:3px solid var(--brand-600);border-bottom:1px solid var(--line);transition:background-color .18s var(--ease)}
.pain-item:last-child{border-bottom:0}
.pain-item:hover{background:#FAFCFA}
.pain-icon{width:32px;height:32px;flex:0 0 32px;color:var(--brand-600);margin-top:3px}
.pain-icon svg{width:32px;height:32px;display:block}
.pain-item h3{font-family:var(--font-sans);font-size:17px;font-weight:700;letter-spacing:0;line-height:1.6}
.pain-item p{margin-top:6px;font-size:15px;color:var(--text-2);line-height:1.8}

/* ---------- 解决方案 ---------- */
.solution-grid{display:grid;grid-template-columns:1.15fr 1fr;gap:24px;align-items:stretch}
.solution-main{grid-column:1;grid-row:1 / span 2;display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);padding:34px;box-shadow:var(--shadow-sm)}
.solution-main img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:var(--radius-img);margin-bottom:26px}
.solution-side{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);padding:28px;box-shadow:var(--shadow-sm);transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease)}
.solution-side:hover{transform:translateY(-2px);box-shadow:var(--shadow-md);border-color:rgba(31,92,70,.3)}
.solution-num{display:inline-block;font-size:14px;font-weight:600;letter-spacing:.1em;color:var(--accent-500);font-variant-numeric:tabular-nums}
.solution-main h3,.solution-side h3{margin-top:10px;font-size:22px;line-height:1.45}
.solution-main p,.solution-side p{margin-top:12px;font-size:15px;color:var(--text-2);line-height:1.85}
.point-list{margin-top:18px;display:grid;gap:8px}
.point-list li{position:relative;padding-left:18px;font-size:15px;color:var(--text-2);line-height:1.8}
.point-list li::before{content:"";position:absolute;left:0;top:.78em;width:6px;height:6px;border-radius:50%;background:var(--brand-600)}
.solution-main .link-arrow,.solution-side .link-arrow{margin-top:20px}
.solution-main .link-arrow{margin-top:auto;padding-top:22px}

/* ---------- 成果 ---------- */
.result-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.result-stat{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);padding:26px;box-shadow:var(--shadow-sm)}
.result-stat strong{display:block;font-size:38px;font-weight:600;letter-spacing:-.01em;line-height:1.1;color:var(--brand-600);font-variant-numeric:tabular-nums}
.result-stat span{display:block;margin-top:10px;font-size:14px;color:var(--text-2);line-height:1.65}
.compare{margin-top:40px;display:grid;grid-template-columns:1fr 1fr;gap:24px}
.compare-col{border-radius:var(--radius-card);padding:28px;border:1px solid var(--line)}
.compare-before{background:#F0F1EE}
.compare-after{background:var(--brand-100);border-color:rgba(31,92,70,.26)}
.compare-col h3{font-size:20px;line-height:1.5}
.compare-col ul{margin-top:16px;display:grid;gap:10px}
.compare-col li{position:relative;padding-left:20px;font-size:15px;line-height:1.8;color:var(--text-2)}
.compare-col li::before{content:"";position:absolute;left:0;top:.75em;width:8px;height:2px;border-radius:2px;background:var(--text-2)}
.compare-after li{color:#2C4A3E}
.compare-after li::before{background:var(--brand-600)}

/* ---------- 客户证言 ---------- */
.quotes{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:start}
.quote{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);padding:28px;box-shadow:var(--shadow-sm);transition:transform .2s var(--ease),box-shadow .2s var(--ease)}
.quote:hover{transform:translateY(-2px);box-shadow:var(--shadow-md)}
.quote:nth-child(2){margin-top:32px}
.quote:nth-child(3){margin-top:14px}
.quote blockquote{margin:0;font-family:var(--font-serif);font-size:20px;line-height:1.75;color:var(--ink-900)}
.quote-person{display:flex;align-items:center;gap:12px;margin-top:24px;padding-top:18px;border-top:1px solid var(--line)}
.avatar{width:48px;height:48px;flex:0 0 48px;border-radius:50%;background:var(--brand-100);color:var(--brand-600);display:grid;place-items:center;font-family:var(--font-serif);font-size:20px;font-weight:700}
.quote-person strong{display:block;font-family:var(--font-sans);font-size:15px;font-weight:700}
.quote-person span{display:block;font-size:13px;color:var(--text-2)}

/* ---------- 内容卡片 ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.card{display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-sm);transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease)}
.card:hover{transform:translateY(-2px);box-shadow:var(--shadow-md);border-color:rgba(31,92,70,.3)}
.card-media{display:block;position:relative;overflow:hidden;background:var(--surface-2)}
.card-media img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .35s var(--ease)}
.card:hover .card-media img{transform:scale(1.04)}
.card-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1 1 auto}
.card-title{font-size:18px;line-height:1.55;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-title a{color:var(--ink-900)}
.card:hover .card-title a{color:var(--brand-600)}
.card-excerpt{font-size:14px;line-height:1.75;color:var(--text-2);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.card-meta{margin-top:auto;padding-top:14px;border-top:1px solid var(--line);font-size:13px;color:var(--text-2);display:flex;flex-wrap:wrap;gap:8px 14px}
.card-meta span{display:inline-flex;align-items:center;gap:6px}
.card-meta span::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--line);flex:0 0 5px}
.empty-state{grid-column:1 / -1;border:1px dashed var(--line);border-radius:var(--radius-card);background:var(--surface);padding:56px 24px;text-align:center;color:var(--text-2)}
.empty-state svg{width:36px;height:36px;margin:0 auto 14px;color:var(--brand-600);opacity:.7}
.empty-state p{font-size:15px}
.news-more{margin-top:36px;text-align:center}

/* ---------- FAQ ---------- */
.faq-layout{display:grid;grid-template-columns:1fr 320px;gap:48px;align-items:start}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item:first-child{border-top:1px solid var(--line)}
.faq-item summary{list-style:none;cursor:pointer;position:relative;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:22px 6px 22px 20px;font-family:var(--font-sans);font-size:18px;font-weight:500;line-height:1.6;color:var(--ink-900);transition:color .18s var(--ease)}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::before{content:"";position:absolute;left:0;top:20px;bottom:20px;width:3px;border-radius:2px;background:var(--brand-600)}
.faq-item summary::after{content:"";flex:0 0 auto;width:10px;height:10px;margin-right:8px;margin-top:-4px;border-right:2px solid var(--text-2);border-bottom:2px solid var(--text-2);transform:rotate(45deg);transition:transform .2s var(--ease),margin .2s var(--ease)}
.faq-item[open] summary{color:var(--brand-600)}
.faq-item[open] summary::after{transform:rotate(-135deg);margin-top:4px}
.faq-item summary:hover{color:var(--brand-600)}
.faq-answer{padding:0 42px 26px 20px;font-size:16px;line-height:1.85;color:var(--text-2)}
.faq-aside{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);padding:28px;box-shadow:var(--shadow-sm);position:sticky;top:104px}
.faq-aside h3{font-size:20px;line-height:1.5}
.faq-aside p{margin-top:12px;font-size:15px;color:var(--text-2);line-height:1.8}
.faq-aside .btn{margin-top:20px}
.faq-aside .aside-note{margin-top:14px;font-size:13px;color:var(--text-2);line-height:1.7}

/* ---------- 底部 CTA ---------- */
.cta-band{position:relative;overflow:hidden;background:var(--brand-800);padding:72px 0 56px}
.cta-band::before{content:"";position:absolute;inset:0;opacity:.06;background-image:repeating-linear-gradient(135deg,#FFFFFF 0 1px,transparent 1px 14px)}
.cta-inner{position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;gap:36px;flex-wrap:wrap}
.cta-inner h2{color:#fff;font-size:32px;line-height:1.35}
.cta-inner p{margin-top:14px;font-size:16px;line-height:1.8;color:rgba(255,255,255,.74);max-width:640px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}

/* ---------- 页脚 ---------- */
.site-footer{background:#0F1E19;color:rgba(255,255,255,.68);padding:64px 0 28px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:40px;border-bottom:1px solid rgba(255,255,255,.12)}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .logo-mark{background:var(--brand-600)}
.footer-brand .logo-text{color:#fff;font-size:18px}
.footer-desc{font-size:14px;line-height:1.85;color:rgba(255,255,255,.6);max-width:320px}
.footer-title{font-family:var(--font-sans);font-size:15px;font-weight:700;color:#fff;margin-bottom:16px}
.footer-links a{display:block;padding:6px 0;font-size:14px;color:rgba(255,255,255,.68)}
.footer-links a:hover{color:#fff}
.footer-contact li{font-size:14px;line-height:1.9;color:rgba(255,255,255,.68)}
.footer-contact strong{display:block;color:#fff;font-weight:500;font-size:14px}
.footer-bottom{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;padding-top:24px;font-size:13px;color:rgba(255,255,255,.5)}
.footer-bottom a{color:rgba(255,255,255,.5)}
.footer-bottom a:hover{color:#fff}

/* ---------- 断点 ---------- */
@media (max-width:1199px){
  .container{padding:0 24px}
  .hero h1{font-size:36px}
  .hero-grid{gap:40px}
  .section{padding:72px 0}
  .section-head h2{font-size:28px}
  .section-head h3{font-size:22px}
  .nav-link{font-size:14px;padding:8px 8px}
  .header-inner{gap:14px}
  .metric strong{font-size:32px}
  .result-stat strong{font-size:34px}
}
@media (max-width:991px){
  .container{padding:0 20px}
  .nav-links{display:none}
  .menu-toggle{display:inline-flex}
  .header-inner > .search{display:none}
  .header-inner{min-height:66px;justify-content:space-between}
  .hero{padding:64px 0 56px}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .hero-visual img{aspect-ratio:16/10}
  .hero-sub{max-width:none}
  .metrics{grid-template-columns:repeat(2,1fr);margin-top:44px}
  .metric{padding:22px 20px}
  .metric:nth-child(2)::after{display:none}
  .metric:nth-child(-n+2){border-bottom:1px solid var(--line)}
  .section{padding:64px 0}
  .solution-grid{grid-template-columns:1fr}
  .solution-main{grid-column:1;grid-row:auto}
  .result-stats{grid-template-columns:repeat(2,1fr)}
  .compare{grid-template-columns:1fr}
  .quotes{grid-template-columns:1fr}
  .quote:nth-child(2),.quote:nth-child(3){margin-top:0}
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .faq-layout{grid-template-columns:1fr;gap:32px}
  .faq-aside{position:static}
  .cta-band{padding:56px 0 48px}
  .cta-inner h2{font-size:26px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  body{font-size:16px;line-height:1.8}
  .hero h1{font-size:28px}
  .hero-sub{font-size:17px}
  .section{padding:56px 0}
  .section-head{margin-bottom:28px}
  .section-head h2{font-size:24px}
  .metrics{grid-template-columns:1fr}
  .metric::after{display:none}
  .metric{border-bottom:1px solid var(--line)}
  .metric:last-child{border-bottom:0}
  .solution-main,.solution-side{padding:24px}
  .result-stats{grid-template-columns:1fr}
  .news-grid{grid-template-columns:1fr}
  .pain-item{padding:22px 20px 22px 18px}
  .faq-item summary{font-size:17px;padding:18px 4px 18px 18px}
  .faq-answer{padding:0 20px 22px 18px}
  .cta-inner h2{font-size:23px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .hero-actions .btn{flex:1 1 auto}
}
@media (max-width:479px){
  .container{padding:0 16px}
  .logo-text{font-size:17px}
  .hero h1{font-size:25px}
  .metric strong{font-size:30px}
  .result-stat strong{font-size:30px}
  .quote blockquote{font-size:18px}
}

/* roulang page: category1 */
:root{
  --brand-600:#1F5C46;
  --brand-800:#143D2E;
  --brand-100:#E4EFE9;
  --accent-500:#E07A3C;
  --accent-700:#B85A22;
  --accent-100:#FBE9DC;
  --bg:#F7F5F0;
  --surface:#FFFFFF;
  --surface-2:#EFF3EF;
  --ink-900:#0F1E19;
  --text-2:#5A6A62;
  --line:#DDE3DC;
  --success:#2E7D5B;
  --warning:#C2502B;
  --radius-card:14px;
  --radius-img:12px;
  --radius-btn:10px;
  --shadow-sm:0 1px 2px rgba(15,30,25,.06);
  --shadow-md:0 8px 24px -12px rgba(15,30,25,.18);
  --shadow-lg:0 24px 48px -24px rgba(15,30,25,.24);
  --space-section:96px;
  --font-sans:"Noto Sans SC","HarmonyOS Sans","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --font-serif:"Noto Serif SC","Songti SC","Source Han Serif SC",Georgia,serif;
}

*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:17px;
  line-height:1.85;
  color:var(--ink-900);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto;}
a{color:var(--brand-600);text-decoration:none;transition:color .18s ease-out;}
a:hover{color:var(--brand-800);}
button,input,textarea,select{font:inherit;color:inherit;}
:focus-visible{outline:2px solid var(--brand-600);outline-offset:2px;border-radius:4px;}

h1,h2,h3{font-family:var(--font-serif);letter-spacing:.01em;color:var(--ink-900);margin:0;}
h1{font-size:44px;line-height:1.25;font-weight:700;}
h2{font-size:32px;line-height:1.35;font-weight:700;}
h3{font-size:22px;line-height:1.45;font-weight:700;}
p{margin:0 0 18px;}
p:last-child{margin-bottom:0;}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px;}
.section{padding:var(--space-section) 0;}
.section-alt{background:var(--surface-2);}
.section-head{max-width:760px;margin-bottom:32px;}
.section-head p{color:var(--text-2);margin-top:14px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:.08em;
  color:var(--brand-600);background:var(--brand-100);
  border-radius:6px;padding:5px 12px;margin-bottom:16px;
  font-family:var(--font-sans);
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent-500);}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:12px 22px;border-radius:var(--radius-btn);
  font-size:16px;font-weight:600;line-height:1;
  border:1px solid transparent;cursor:pointer;
  transition:background-color .18s ease-out,color .18s ease-out,box-shadow .18s ease-out,transform .18s ease-out,border-color .18s ease-out;
}
.btn-sm{min-height:38px;padding:9px 16px;font-size:15px;}
.btn-lg{min-height:52px;padding:15px 30px;font-size:17px;}
.btn-primary{background:var(--brand-600);color:#fff;box-shadow:var(--shadow-sm);}
.btn-primary:hover{background:var(--brand-800);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-md);}
.btn-primary:active{transform:translateY(0);box-shadow:var(--shadow-sm);}
.btn-accent{background:var(--accent-500);color:#fff;box-shadow:var(--shadow-sm);}
.btn-accent:hover{background:var(--accent-700);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-md);}
.btn-accent:active{transform:translateY(0);}
.btn-outline{background:transparent;border-color:var(--line);color:var(--ink-900);}
.btn-outline:hover{background:var(--surface-2);color:var(--ink-900);border-color:#CBD6CD;}
.btn-outline:active{background:#E5EBE6;}
.btn:disabled{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none;}
.link-more{
  display:inline-flex;align-items:center;gap:6px;
  font-weight:600;font-size:16px;color:var(--brand-600);
  text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:4px;
  transition:color .18s ease-out,text-decoration-thickness .18s ease-out,gap .18s ease-out;
}
.link-more::after{content:"→";transition:transform .18s ease-out;}
.link-more:hover{color:var(--brand-800);text-decoration-thickness:2px;gap:10px;}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(247,245,240,.94);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;gap:18px;min-height:74px;flex-wrap:wrap;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.logo-mark{
  width:38px;height:38px;border-radius:10px;background:var(--brand-600);
  display:grid;place-items:center;box-shadow:var(--shadow-sm);flex:0 0 auto;
}
.logo-mark svg{width:21px;height:21px;}
.logo-text{font-family:var(--font-serif);font-size:20px;font-weight:700;color:var(--ink-900);letter-spacing:.01em;}

.nav-search{flex:1 1 40%;max-width:560px;min-width:200px;}
.search-form{position:relative;display:flex;align-items:center;}
.search-icon{position:absolute;left:16px;width:18px;height:18px;stroke:var(--text-2);pointer-events:none;}
.search-input{
  width:100%;height:44px;border-radius:999px;border:1px solid var(--line);
  background:var(--surface);padding:0 18px 0 46px;font-size:15px;
  transition:border-color .18s ease-out,box-shadow .18s ease-out;
}
.search-input::placeholder{color:#95A29A;}
.search-input:focus{outline:none;border-color:var(--brand-600);box-shadow:0 0 0 3px rgba(31,92,70,.18);}

.nav-links{display:flex;align-items:center;gap:2px;margin-left:auto;}
.nav-link{
  padding:9px 11px;border-radius:8px;font-size:15px;font-weight:500;
  color:var(--text-2);white-space:nowrap;
  transition:background-color .18s ease-out,color .18s ease-out,box-shadow .18s ease-out;
}
.nav-link:hover{background:var(--brand-100);color:var(--brand-800);}
.nav-link.is-active{color:var(--brand-600);font-weight:700;box-shadow:inset 0 -2px 0 var(--accent-500);background:transparent;}
.nav-links .btn{margin-left:10px;}

.menu-toggle{
  display:none;width:44px;height:44px;border-radius:10px;
  border:1px solid var(--line);background:var(--surface);cursor:pointer;
  align-items:center;justify-content:center;margin-left:auto;
  transition:background-color .18s ease-out,border-color .18s ease-out;
}
.menu-toggle:hover{background:var(--surface-2);border-color:#CBD6CD;}
.menu-toggle svg{width:20px;height:20px;stroke:var(--ink-900);}

.chip-bar{border-top:1px solid var(--line);background:rgba(255,255,255,.55);}
.chip-scroll{display:flex;gap:8px;overflow-x:auto;padding:10px 0;scrollbar-width:none;}
.chip-scroll::-webkit-scrollbar{display:none;}
.chip{
  display:inline-flex;align-items:center;height:32px;padding:0 14px;border-radius:8px;
  background:var(--surface-2);color:var(--text-2);font-size:14px;font-weight:500;white-space:nowrap;
  transition:background-color .18s ease-out,color .18s ease-out,box-shadow .18s ease-out;
}
.chip:hover{background:var(--brand-100);color:var(--brand-800);}
.chip.is-active{background:var(--accent-100);color:#9A4A18;font-weight:600;box-shadow:inset 0 -2px 0 var(--accent-500);}
.chip:focus-visible{outline:2px solid var(--brand-600);outline-offset:2px;}

.mobile-drawer{display:none;border-top:1px solid var(--line);background:var(--surface);}
.mobile-drawer.is-open{display:block;}
.mobile-drawer-inner{padding:18px 0 24px;}
.mobile-drawer .search-form{margin-bottom:16px;}
.drawer-links{display:flex;flex-direction:column;}
.drawer-links a{
  display:flex;align-items:center;min-height:48px;
  padding:0 4px;border-bottom:1px solid var(--line);
  font-size:16px;color:var(--ink-900);font-weight:500;
}
.drawer-links a:last-child{border-bottom:none;}
.drawer-links a.is-active{color:var(--brand-600);font-weight:700;}

/* ---------- 面包屑 ---------- */
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:14px;color:var(--text-2);margin-bottom:22px;
}
.breadcrumb a{color:var(--text-2);}
.breadcrumb a:hover{color:var(--brand-600);text-decoration:underline;text-underline-offset:3px;}
.breadcrumb .sep{color:#B7C2BA;}
.breadcrumb .current{color:var(--ink-900);font-weight:600;}

/* ---------- 页头 ---------- */
.page-hero{padding:56px 0 72px;border-bottom:1px solid var(--line);background:
  radial-gradient(1000px 420px at 88% -10%,rgba(31,92,70,.08),transparent 70%),var(--bg);}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;}
.hero-lead{font-size:18px;color:var(--text-2);margin:20px 0 28px;max-width:560px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:26px;}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;list-style:none;padding:0;margin:0;}
.hero-tags li{
  font-size:14px;color:var(--brand-800);background:var(--brand-100);
  border-radius:999px;padding:6px 14px;
}
.hero-media{position:relative;}
.hero-media img{
  width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--radius-img);
  box-shadow:var(--shadow-lg);
}
.hero-media figcaption{font-size:14px;color:var(--text-2);margin-top:12px;}

/* ---------- 指标带 ---------- */
.stat-band{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:var(--surface);}
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;padding:34px 0;}
.stat-item{padding-left:18px;border-left:3px solid var(--brand-100);}
.stat-num{
  font-family:"DIN Alternate","SFMono-Regular",Menlo,monospace;
  font-size:38px;font-weight:600;letter-spacing:-.01em;color:var(--accent-500);line-height:1.15;
}
.stat-num small{font-size:16px;color:var(--text-2);margin-left:4px;font-weight:500;}
.stat-label{font-size:14px;color:var(--text-2);margin-top:6px;}

/* ---------- 图文交替 ---------- */
.feature-row{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;}
.feature-row + .feature-row{margin-top:72px;}
.feature-row.reverse .feature-media{order:2;}
.feature-media img{
  width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--radius-img);
  box-shadow:var(--shadow-md);border:1px solid var(--line);
}
.feature-body h2{margin-bottom:14px;}
.feature-body p{color:var(--text-2);}
.point-list{list-style:none;padding:0;margin:20px 0 24px;}
.point-list li{
  position:relative;padding:8px 0 8px 22px;border-left:3px solid var(--brand-100);
  padding-left:18px;margin-bottom:10px;color:var(--ink-900);font-size:16px;
}
.point-list li::before{
  content:"";position:absolute;left:-3px;top:16px;width:3px;height:14px;background:var(--accent-500);
}

/* ---------- 适用团队 ---------- */
.scene-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;margin-top:36px;}
.scene-item{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:26px;box-shadow:var(--shadow-sm);
  transition:transform .2s ease-out,box-shadow .2s ease-out,border-color .2s ease-out;
}
.scene-item:hover{transform:translateY(-2px);box-shadow:var(--shadow-md);border-color:rgba(31,92,70,.3);}
.scene-item h3{font-size:20px;margin-bottom:10px;}
.scene-item p{color:var(--text-2);font-size:16px;}
.scene-index{
  font-family:"SFMono-Regular",Menlo,monospace;font-size:14px;font-weight:600;
  color:var(--accent-500);letter-spacing:.06em;display:block;margin-bottom:8px;
}

/* ---------- 流程 ---------- */
.timeline{position:relative;margin-top:40px;padding-left:44px;}
.timeline::before{content:"";position:absolute;left:15px;top:8px;bottom:8px;width:3px;background:var(--brand-600);border-radius:2px;}
.timeline-item{position:relative;margin-bottom:48px;}
.timeline-item:last-child{margin-bottom:0;}
.timeline-node{
  position:absolute;left:-44px;top:0;width:32px;height:32px;border-radius:50%;
  background:#fff;border:2px solid var(--brand-600);color:var(--brand-600);
  display:grid;place-items:center;font-size:14px;font-weight:700;font-family:var(--font-sans);
}
.timeline-item h3{margin-bottom:8px;font-size:21px;}
.timeline-item p{color:var(--text-2);max-width:760px;}

/* ---------- FAQ ---------- */
.faq-wrap{display:grid;grid-template-columns:1fr 320px;gap:48px;align-items:start;}
.faq-list{border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);border-left:3px solid var(--brand-600);padding-left:20px;}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 0;font-size:18px;font-weight:500;color:var(--ink-900);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--brand-600);}
.faq-icon{
  flex:0 0 auto;width:22px;height:22px;border-radius:50%;background:var(--brand-100);
  display:grid;place-items:center;color:var(--brand-600);
  transition:transform .2s ease-out,background-color .2s ease-out;
}
.faq-icon svg{width:12px;height:12px;stroke:var(--brand-600);}
.faq-item[open] .faq-icon{transform:rotate(45deg);background:var(--accent-100);}
.faq-item[open] .faq-icon svg{stroke:var(--accent-700);}
.faq-body{padding:0 0 22px;color:var(--text-2);font-size:16px;}
.faq-aside{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:26px;box-shadow:var(--shadow-sm);position:sticky;top:104px;
}
.faq-aside h3{font-size:19px;margin-bottom:10px;}
.faq-aside p{color:var(--text-2);font-size:15px;margin-bottom:18px;}

/* ---------- 尾部 CTA ---------- */
.cta-band{
  background:var(--brand-800);color:#fff;position:relative;overflow:hidden;
  padding:72px 0 56px;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:
    repeating-linear-gradient(115deg,rgba(255,255,255,.06) 0 1px,transparent 1px 24px),
    radial-gradient(560px 260px at 88% 12%,rgba(224,122,60,.22),transparent 68%);
  opacity:.9;pointer-events:none;
}
.cta-inner{position:relative;display:flex;align-items:center;justify-content:space-between;gap:40px;flex-wrap:wrap;}
.cta-inner h2{color:#fff;max-width:620px;}
.cta-inner p{color:rgba(255,255,255,.78);margin-top:14px;max-width:560px;font-size:16px;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--brand-800);color:rgba(255,255,255,.82);padding:64px 0 28px;position:relative;}
.site-footer::before{
  content:"";position:absolute;inset:0;
  background-image:repeating-linear-gradient(115deg,rgba(255,255,255,.05) 0 1px,transparent 1px 26px);
  opacity:.7;pointer-events:none;
}
.site-footer .container{position:relative;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .logo-mark{background:rgba(255,255,255,.12);}
.footer-brand .logo-text{color:#fff;font-size:19px;}
.footer-desc{font-size:15px;line-height:1.8;color:rgba(255,255,255,.72);max-width:340px;}
.footer-title{font-size:16px;font-weight:700;color:#fff;margin:0 0 16px;font-family:var(--font-sans);}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{color:rgba(255,255,255,.76);font-size:15px;}
.footer-links a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px;}
.footer-contact{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:12px;font-size:15px;color:rgba(255,255,255,.76);}
.footer-contact strong{display:block;color:#fff;font-weight:600;font-size:14px;margin-bottom:2px;}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid rgba(255,255,255,.16);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:14px;color:rgba(255,255,255,.62);
}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  h1{font-size:36px;}
  h2{font-size:28px;}
  .section{padding:72px 0;}
  .hero-grid{gap:40px;}
  .nav-link{padding:9px 8px;font-size:14px;}
  .nav-links .btn{margin-left:6px;}
}
@media (max-width:991px){
  .container{padding:0 24px;}
  .nav-links{display:none;}
  .menu-toggle{display:flex;}
  .header-inner{gap:14px;min-height:auto;padding:12px 0 14px;}
  .nav-search{order:3;flex:1 0 100%;max-width:none;}
  .hero-grid{grid-template-columns:1fr;gap:36px;}
  .hero-media img{aspect-ratio:16/9;}
  .stat-grid{grid-template-columns:repeat(2,1fr);gap:20px;padding:28px 0;}
  .feature-row{grid-template-columns:1fr;gap:28px;}
  .feature-row.reverse .feature-media{order:0;}
  .scene-grid{grid-template-columns:1fr;}
  .faq-wrap{grid-template-columns:1fr;}
  .faq-aside{position:static;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-inner{flex-direction:column;align-items:flex-start;}
}
@media (max-width:767px){
  body{font-size:16px;line-height:1.8;}
  .section{padding:56px 0;}
  h1{font-size:28px;}
  h2{font-size:24px;}
  h3{font-size:19px;}
  .container{padding:0 18px;}
  .page-hero{padding:36px 0 48px;}
  .hero-lead{font-size:17px;}
  .hero-actions .btn{width:100%;}
  .stat-num{font-size:30px;}
  .feature-row + .feature-row{margin-top:48px;}
  .timeline{padding-left:34px;}
  .timeline::before{left:15px;}
  .timeline-node{left:-34px;width:28px;height:28px;font-size:13px;}
  .footer-grid{grid-template-columns:1fr;}
  .site-footer{padding:48px 0 24px;}
  .cta-band{padding:52px 0 44px;}
  .cta-inner .btn{width:100%;}
}
@media (max-width:479px){
  .logo-text{font-size:17px;}
  .stat-grid{grid-template-columns:1fr;}
  .btn{width:100%;}
  .hero-actions{flex-direction:column;}
  .faq-item summary{font-size:16px;}
}

/* roulang page: article */
:root{
  --brand-600:#1F5C46;
  --brand-800:#143D2E;
  --brand-100:#E4EFE9;
  --accent-500:#E07A3C;
  --accent-700:#B85A22;
  --accent-100:#FBE9DC;
  --bg:#F7F5F0;
  --surface:#FFFFFF;
  --surface-2:#EFF3EF;
  --ink-900:#0F1E19;
  --text-2:#5A6A62;
  --line:#DDE3DC;
  --ok:#2E7D5B;
  --warn:#C2502B;
  --info:#3A6E8F;
  --r-card:14px;
  --r-img:12px;
  --r-btn:10px;
  --r-pill:999px;
  --sh-sm:0 1px 2px rgba(15,30,25,.06);
  --sh-md:0 8px 24px -12px rgba(15,30,25,.18);
  --sh-lg:0 24px 48px -24px rgba(15,30,25,.24);
  --font-sans:'Noto Sans SC','HarmonyOS Sans','PingFang SC','Microsoft YaHei',sans-serif;
  --font-serif:'Noto Serif SC','Songti SC','SimSun',serif;
  --t:200ms ease-out;
  --sec-y:96px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink-900);
  font-family:var(--font-sans);
  font-size:17px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none;}
a{color:var(--brand-600);text-decoration:none;transition:color var(--t);}
a:hover{color:var(--brand-800);}
button,input,textarea,select{font-family:inherit;font-size:inherit;color:inherit;}
button{cursor:pointer;}
ul,ol{padding-left:1.2em;}
h1,h2,h3,h4{margin:0;line-height:1.3;letter-spacing:.01em;}
p{margin:0;}
:focus-visible{outline:2px solid var(--brand-600);outline-offset:2px;border-radius:6px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px;}
.section{padding:var(--sec-y) 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px;flex-wrap:wrap;}
.section-title{font-family:var(--font-serif);font-size:32px;font-weight:600;}
.section-title .hl{color:var(--brand-600);}
.section-sub{color:var(--text-2);font-size:15px;margin-top:10px;max-width:640px;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:var(--r-btn);border:1px solid transparent;
  font-size:15px;font-weight:500;line-height:1.2;text-decoration:none;
  transition:transform var(--t),background-color var(--t),border-color var(--t),box-shadow var(--t),color var(--t);
}
.btn-primary{background:var(--brand-600);color:#fff;box-shadow:var(--sh-sm);}
.btn-primary:hover{background:var(--brand-800);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-md);}
.btn-primary:active{transform:none;box-shadow:none;}
.btn-accent{background:var(--accent-500);color:#fff;box-shadow:var(--sh-sm);}
.btn-accent:hover{background:var(--accent-700);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-md);}
.btn-accent:active{transform:none;}
.btn-outline{border-color:var(--line);color:var(--ink-900);background:transparent;}
.btn-outline:hover{background:var(--surface-2);border-color:#c9d3cc;color:var(--ink-900);}
.btn-sm{padding:9px 16px;font-size:14px;}
.btn:disabled{opacity:.5;cursor:not-allowed;transform:none;}
.text-link{display:inline-flex;align-items:center;gap:6px;font-weight:500;color:var(--brand-600);text-decoration:underline;text-underline-offset:3px;transition:var(--t);}
.text-link:hover{color:var(--brand-800);text-decoration-thickness:2px;}
.text-link .arrow{transition:transform var(--t);}
.text-link:hover .arrow{transform:translateX(2px);}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(247,245,240,.95);
  backdrop-filter:saturate(150%) blur(10px);
  border-bottom:1px solid var(--line);
}
.header-top{display:flex;align-items:center;gap:22px;padding:14px 0 10px;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--ink-900);text-decoration:none;}
.brand:hover{color:var(--ink-900);}
.logo-mark{width:38px;height:38px;border-radius:11px;background:var(--brand-600);display:grid;place-items:center;flex:0 0 auto;box-shadow:var(--sh-sm);}
.logo-mark svg{width:22px;height:22px;}
.logo-text{font-size:18px;font-weight:700;letter-spacing:.01em;}
.search{position:relative;flex:1 1 auto;max-width:560px;margin:0 auto;display:flex;align-items:center;}
.search input{
  width:100%;height:44px;border-radius:var(--r-pill);border:1px solid var(--line);
  background:var(--surface);padding:0 20px 0 46px;font-size:15px;
  transition:border-color var(--t),box-shadow var(--t);
}
.search input::placeholder{color:#8c988f;}
.search input:focus{outline:none;border-color:var(--brand-600);box-shadow:0 0 0 3px rgba(31,92,70,.18);}
.search-btn{
  position:absolute;left:6px;top:50%;transform:translateY(-50%);
  width:34px;height:34px;border:none;background:transparent;border-radius:var(--r-pill);
  display:grid;place-items:center;color:var(--text-2);transition:var(--t);
}
.search-btn:hover{color:var(--brand-600);background:var(--brand-100);}
.search-btn svg{width:18px;height:18px;}
.nav-links{display:flex;align-items:center;gap:4px;flex:0 0 auto;}
.nav-link{
  padding:9px 11px;border-radius:8px;font-size:15px;color:var(--ink-900);
  transition:background-color var(--t),color var(--t);white-space:nowrap;
}
.nav-link:hover{background:var(--brand-100);color:var(--brand-600);}
.nav-link.is-active{color:var(--brand-600);font-weight:700;}
.menu-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);background:var(--surface);
  border-radius:var(--r-btn);align-items:center;justify-content:center;color:var(--ink-900);
}
.menu-toggle svg{width:20px;height:20px;}
.chip-row{
  display:flex;gap:10px;overflow-x:auto;padding:0 0 12px;scrollbar-width:none;
}
.chip-row::-webkit-scrollbar{display:none;}
.chip{
  flex:0 0 auto;display:inline-flex;align-items:center;height:32px;padding:0 13px;
  border-radius:8px;background:var(--surface-2);color:var(--text-2);font-size:13px;
  transition:background-color var(--t),color var(--t);
}
.chip:hover{background:var(--brand-100);color:var(--brand-600);}
.chip.is-active{color:var(--brand-600);font-weight:700;background:var(--brand-100);border-bottom:2px solid var(--accent-500);border-radius:8px 8px 6px 6px;}
.mobile-menu{display:none;border-top:1px solid var(--line);background:var(--surface);padding:16px 0 20px;}
.mobile-menu.is-open{display:block;}
.mobile-menu .m-search{display:flex;gap:10px;margin-bottom:16px;}
.mobile-menu .m-search input{flex:1;height:46px;border-radius:var(--r-pill);border:1px solid var(--line);padding:0 18px;background:var(--surface-2);}
.mobile-menu .m-links{display:flex;flex-direction:column;}
.mobile-menu .m-links a{padding:14px 2px;border-bottom:1px solid var(--line);color:var(--ink-900);font-size:16px;}
.mobile-menu .m-links a:last-child{border-bottom:none;}
.mobile-menu .m-cta{margin-top:16px;}

/* ---------- 面包屑 ---------- */
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--text-2);padding:26px 0 0;}
.crumb a{color:var(--brand-600);}
.crumb .sep{color:#b8c3bb;}
.crumb .current{color:var(--text-2);max-width:520px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

/* ---------- 文章头 ---------- */
.article-hero{padding:22px 0 30px;border-bottom:1px solid var(--line);}
.article-hero h1{
  font-family:var(--font-serif);font-size:40px;font-weight:600;line-height:1.32;
  max-width:900px;margin:0 auto;
}
.article-hero .inner{max-width:880px;margin:0 auto;}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:14px;margin-top:20px;font-size:14px;color:var(--text-2);}
.meta-row .dot{width:4px;height:4px;border-radius:50%;background:#c3cec6;}
.badge-cat{
  display:inline-flex;align-items:center;height:26px;padding:0 11px;border-radius:6px;
  background:var(--accent-100);color:#9A4A18;font-size:13px;font-weight:500;
}
.cover-wrap{max-width:880px;margin:32px auto 0;}
.cover-wrap img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:16px;box-shadow:var(--sh-md);}

/* ---------- 文章布局 ---------- */
.article-layout{
  display:grid;grid-template-columns:minmax(0,760px) 300px;gap:48px;
  justify-content:center;padding:52px 0 40px;align-items:start;
}
.article-body{font-size:17px;line-height:1.9;color:var(--ink-900);min-width:0;}
.article-body p{margin:0 0 1.2em;}
.article-body h2{
  font-family:var(--font-serif);font-size:28px;font-weight:600;
  margin:44px 0 18px;
}
.article-body h2::before{
  content:"";display:block;width:40px;height:4px;border-radius:2px;
  background:var(--brand-600);margin-bottom:16px;
}
.article-body h3{font-size:20px;font-weight:700;margin:32px 0 14px;}
.article-body h4{font-size:18px;font-weight:700;margin:26px 0 12px;}
.article-body ul,.article-body ol{margin:0 0 1.2em;padding-left:1.35em;}
.article-body li{margin-bottom:.5em;}
.article-body li::marker{color:var(--brand-600);font-weight:700;}
.article-body blockquote{
  margin:26px 0;padding:16px 22px;border-left:3px solid var(--accent-500);
  background:var(--accent-100);border-radius:0 12px 12px 0;color:#4a3323;font-size:16.5px;
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{border-radius:var(--r-img);margin:26px auto;}
.article-body figure{margin:26px 0;}
.article-body figcaption{text-align:center;font-size:14px;color:var(--text-2);margin-top:10px;}
.article-body a{color:var(--brand-600);text-decoration:underline;text-underline-offset:3px;}
.article-body a:hover{color:var(--brand-800);}
.article-body table{width:100%;border-collapse:collapse;margin:26px 0;font-size:15.5px;border:1px solid var(--line);border-radius:var(--r-img);overflow:hidden;}
.article-body th{background:var(--brand-100);text-align:left;padding:12px 16px;font-weight:600;}
.article-body td{padding:12px 16px;border-top:1px solid var(--line);}
.article-body tbody tr:nth-child(even){background:var(--surface-2);}
.article-body code{background:var(--surface-2);padding:2px 6px;border-radius:6px;font-size:15px;}
.article-body pre{background:#0F1E19;color:#e6efe9;padding:18px 20px;border-radius:var(--r-img);overflow-x:auto;font-size:14.5px;line-height:1.7;}
.article-body hr{border:none;border-top:1px solid var(--line);margin:36px 0;}

/* ---------- 侧栏 ---------- */
.side{position:sticky;top:88px;display:flex;flex-direction:column;gap:20px;}
.side-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:22px;box-shadow:var(--sh-sm);
}
.side-title{font-size:16px;font-weight:700;margin-bottom:14px;}
.side-list{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;}
.side-list li{border-bottom:1px solid var(--line);}
.side-list li:last-child{border-bottom:none;}
.side-list a{display:flex;align-items:center;justify-content:space-between;gap:8px;padding:11px 0;color:var(--ink-900);font-size:15px;}
.side-list a:hover{color:var(--brand-600);}
.side-list a span.arw{color:#b8c3bb;transition:transform var(--t);}
.side-list a:hover span.arw{transform:translateX(2px);color:var(--brand-600);}
.tag-cloud{display:flex;flex-wrap:wrap;gap:8px;}
.tag{
  display:inline-flex;align-items:center;height:30px;padding:0 12px;border-radius:var(--r-pill);
  background:var(--surface-2);color:var(--text-2);font-size:13px;
}
.tag:hover{background:var(--brand-100);color:var(--brand-600);}
.side-cta{background:var(--brand-100);border:1px solid #cfe0d7;}
.side-cta p{font-size:15px;color:#2c4a3e;margin-bottom:14px;}

/* ---------- 正文尾部 ---------- */
.after-article{border-top:1px solid var(--line);padding-top:32px;margin-top:44px;}
.block-label{font-size:14px;color:var(--text-2);margin-bottom:12px;letter-spacing:.04em;}
.reco-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.card{
  display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-sm);
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.card:hover{transform:translateY(-2px);box-shadow:var(--sh-md);border-color:rgba(31,92,70,.35);}
.card-media{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--surface-2);}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform 300ms ease-out;}
.card:hover .card-media img{transform:scale(1.03);}
.card-body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:10px;flex:1;}
.card h3{font-size:18px;font-weight:700;line-height:1.5;}
.card:hover h3{color:var(--brand-600);}
.card p{font-size:14.5px;color:var(--text-2);line-height:1.75;}
.card-meta{display:flex;align-items:center;gap:10px;font-size:13.5px;color:var(--text-2);margin-top:auto;}

/* ---------- CTA 带 ---------- */
.cta-band{
  position:relative;background:var(--brand-800);color:#fff;border-radius:0;
  padding:72px 0 64px;overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;inset:0;opacity:.07;
  background-image:radial-gradient(circle at 18% 30%,#ffffff 0 2px,transparent 3px),
                   radial-gradient(circle at 62% 12%,#ffffff 0 1.6px,transparent 2.6px),
                   radial-gradient(circle at 84% 68%,#ffffff 0 2px,transparent 3px),
                   linear-gradient(115deg,transparent 0 48%,#ffffff 48% 48.6%,transparent 48.6% 100%);
  background-size:220px 180px,180px 160px,260px 220px,320px 320px;
  pointer-events:none;
}
.cta-inner{position:relative;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;}
.cta-inner h2{font-family:var(--font-serif);font-size:30px;font-weight:600;color:#fff;}
.cta-inner p{color:#bdd3c9;font-size:16px;margin-top:10px;max-width:600px;}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;}
.btn-ghost{border-color:rgba(255,255,255,.35);color:#fff;background:transparent;}
.btn-ghost:hover{background:rgba(255,255,255,.12);color:#fff;border-color:rgba(255,255,255,.6);}

/* ---------- 空态 ---------- */
.empty-state{
  border:1px dashed #c3cec6;border-radius:var(--r-card);background:var(--surface);
  padding:56px 28px;text-align:center;
}
.empty-state svg{width:44px;height:44px;margin:0 auto 16px;color:var(--brand-600);}
.empty-state p{color:var(--text-2);margin-bottom:20px;font-size:16px;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--brand-800);color:#c3d5cc;padding:64px 0 28px;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.3fr;gap:36px;}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-size:18px;font-weight:700;margin-bottom:16px;}
.footer-desc{color:#a9bfb5;font-size:14.5px;line-height:1.85;max-width:320px;}
.footer-title{font-size:15px;font-weight:700;color:#fff;margin-bottom:16px;letter-spacing:.02em;}
.footer-links{display:flex;flex-direction:column;gap:11px;}
.footer-links a{color:#b3c8be;font-size:14.5px;}
.footer-links a:hover{color:#fff;}
.footer-contact{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:11px;font-size:14.5px;color:#b3c8be;}
.footer-contact strong{color:#fff;font-weight:500;margin-right:8px;}
.footer-bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid rgba(255,255,255,.14);
  display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;font-size:13.5px;color:#93aaa0;
}

/* ---------- 断点 ---------- */
@media (max-width:1199px){
  .article-hero h1{font-size:36px;}
  .article-layout{grid-template-columns:minmax(0,1fr) 280px;gap:36px;}
}
@media (max-width:1024px){
  :root{--sec-y:72px;}
  .nav-links{display:none;}
  .menu-toggle{display:inline-flex;}
  .header-top{flex-wrap:wrap;gap:14px;}
  .brand{order:1;}
  .menu-toggle{order:2;margin-left:auto;}
  .search{order:3;flex-basis:100%;max-width:none;margin:0;}
  .article-layout{grid-template-columns:minmax(0,1fr);gap:36px;padding:40px 0 32px;}
  .side{position:static;}
  .reco-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
}
@media (max-width:767px){
  :root{--sec-y:56px;}
  .container{padding:0 18px;}
  .article-hero h1{font-size:28px;}
  .article-body{font-size:16px;line-height:1.8;}
  .article-body h2{font-size:23px;margin:34px 0 14px;}
  .article-body h3{font-size:19px;}
  .section-title{font-size:24px;}
  .cta-inner h2{font-size:23px;}
  .cta-band{padding:52px 0 48px;}
  .reco-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;}
  .crumb .current{max-width:220px;}
}
@media (max-width:519px){
  .logo-text{font-size:16px;}
  .article-hero h1{font-size:25px;}
  .reco-grid{gap:18px;}
  .btn{padding:12px 18px;}
}

/* roulang page: category2 */
:root{
  --brand-600:#1F5C46;
  --brand-800:#143D2E;
  --brand-100:#E4EFE9;
  --accent-500:#E07A3C;
  --accent-700:#B85A22;
  --accent-100:#FBE9DC;
  --bg:#F7F5F0;
  --surface:#FFFFFF;
  --surface-2:#EFF3EF;
  --ink-900:#0F1E19;
  --text-2:#5A6A62;
  --line:#DDE3DC;
  --ok:#2E7D5B;
  --warn:#C2502B;
  --info:#3A6E8F;

  --radius-card:14px;
  --radius-img:12px;
  --radius-btn:10px;
  --radius-pill:999px;

  --shadow-sm:0 1px 2px rgba(15,30,25,.06);
  --shadow-md:0 8px 24px -12px rgba(15,30,25,.18);
  --shadow-lg:0 24px 48px -24px rgba(15,30,25,.24);

  --space-section:96px;
  --font-sans:"Noto Sans SC","HarmonyOS Sans","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --font-serif:"Noto Serif SC","Songti SC","Source Han Serif SC",serif;
  --font-num:"DIN Alternate","Helvetica Neue",ui-monospace,monospace;
}

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

html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}

body{
  margin:0;
  background:var(--bg);
  color:var(--ink-900);
  font-family:var(--font-sans);
  font-size:17px;
  line-height:1.85;
  font-weight:400;
}

img{max-width:100%;display:block;height:auto;}

a{color:var(--brand-600);text-decoration:none;transition:color .18s ease-out;}
a:hover{color:var(--brand-800);}

button,input,textarea,select{font:inherit;color:inherit;}

h1,h2,h3,h4{margin:0;font-family:var(--font-serif);font-weight:700;letter-spacing:.01em;color:var(--ink-900);}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}

:focus-visible{outline:2px solid var(--brand-600);outline-offset:2px;border-radius:4px;}

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

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(255,255,255,.95);
  backdrop-filter:saturate(1.4) blur(8px);
  border-bottom:1px solid var(--line);
}

.nav-main{
  display:flex;
  align-items:center;
  gap:12px;
  min-height:74px;
}

.brand{
  display:flex;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
}
.logo-mark{
  width:38px;height:38px;
  display:flex;align-items:center;justify-content:center;
  border-radius:11px;
  background:var(--brand-600);
  box-shadow:var(--shadow-sm);
}
.logo-mark svg{width:22px;height:22px;}
.logo-text{
  font-family:var(--font-serif);
  font-size:19px;
  font-weight:700;
  color:var(--ink-900);
  letter-spacing:.01em;
  white-space:nowrap;
}

.nav-search{
  flex:1 1 420px;
  max-width:560px;
  margin:0 auto;
  position:relative;
}
.search-submit{
  position:absolute;
  left:6px;top:50%;
  transform:translateY(-50%);
  width:34px;height:34px;
  display:flex;align-items:center;justify-content:center;
  border:0;border-radius:50%;
  background:transparent;
  color:var(--text-2);
  cursor:pointer;
  transition:background .18s ease-out,color .18s ease-out;
}
.search-submit:hover{background:var(--brand-100);color:var(--brand-600);}
.search-submit svg{width:18px;height:18px;}

.search-input{
  width:100%;
  height:44px;
  padding:0 18px 0 46px;
  border:1px solid var(--line);
  border-radius:var(--radius-pill);
  background:var(--surface);
  color:var(--ink-900);
  font-size:15px;
  transition:border-color .18s ease-out,box-shadow .18s ease-out;
}
.search-input::placeholder{color:#8A968F;}
.search-input:hover{border-color:#C7D2CA;}
.search-input:focus{
  outline:none;
  border-color:var(--brand-600);
  box-shadow:0 0 0 3px rgba(31,92,70,.18);
}

.nav-links{
  display:flex;
  align-items:center;
  gap:4px;
  flex:0 0 auto;
}
.nav-link{
  position:relative;
  display:inline-flex;
  align-items:center;
  min-height:44px;
  padding:0 12px;
  border-radius:8px;
  font-size:15px;
  color:var(--text-2);
  transition:color .18s ease-out,background .18s ease-out;
}
.nav-link:hover{color:var(--brand-600);background:var(--brand-100);}
.nav-link.is-active{color:var(--brand-600);font-weight:500;}
.nav-link.is-active::after{
  content:"";
  position:absolute;
  left:12px;right:12px;bottom:6px;
  height:2px;
  border-radius:2px;
  background:var(--accent-500);
}

.nav-toggle{
  display:none;
  width:44px;height:44px;
  align-items:center;justify-content:center;
  border:1px solid var(--line);
  border-radius:10px;
  background:var(--surface);
  cursor:pointer;
  transition:background .18s ease-out,border-color .18s ease-out;
}
.nav-toggle:hover{background:var(--surface-2);border-color:#C7D2CA;}
.nav-toggle span,
.nav-toggle span::before,
.nav-toggle span::after{
  content:"";
  display:block;
  width:18px;height:2px;
  border-radius:2px;
  background:var(--ink-900);
  transition:transform .2s ease-out,opacity .2s ease-out;
}
.nav-toggle span::before{transform:translateY(-6px);}
.nav-toggle span::after{transform:translateY(4px);}

.nav-chips{
  display:flex;
  gap:8px;
  padding:0 0 12px;
  overflow-x:auto;
  scrollbar-width:none;
}
.nav-chips::-webkit-scrollbar{display:none;}
.chip{
  flex:0 0 auto;
  padding:6px 14px;
  border-radius:8px;
  background:var(--surface-2);
  color:var(--text-2);
  font-size:13px;
  line-height:1.5;
  white-space:nowrap;
  transition:background .18s ease-out,color .18s ease-out;
}
.chip:hover{background:var(--brand-100);color:var(--brand-600);}
.chip.is-active{
  background:var(--brand-100);
  color:var(--brand-600);
  font-weight:600;
  box-shadow:inset 0 -2px 0 var(--accent-500);
}

.nav-drawer{
  display:none;
  border-top:1px solid var(--line);
  background:var(--surface);
  padding:16px 0 8px;
}
.nav-drawer.is-open{display:block;}
.drawer-search{position:relative;margin-bottom:14px;}
.drawer-group{padding:10px 0;border-top:1px solid var(--line);}
.drawer-group:first-of-type{border-top:0;}
.drawer-title{font-size:13px;color:var(--text-2);margin-bottom:6px;}
.drawer-link{
  display:flex;
  align-items:center;
  justify-content:space-between;
  min-height:44px;
  font-size:15px;
  color:var(--ink-900);
  border-bottom:1px solid var(--line);
}
.drawer-link:last-child{border-bottom:0;}
.drawer-link.is-active{color:var(--brand-600);font-weight:600;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:12px 22px;
  border:1px solid transparent;
  border-radius:var(--radius-btn);
  font-size:15px;
  font-weight:500;
  line-height:1.4;
  cursor:pointer;
  text-align:center;
  transition:background .18s ease-out,color .18s ease-out,border-color .18s ease-out,transform .18s ease-out,box-shadow .18s ease-out;
}
.btn-primary{background:var(--brand-600);color:#fff;}
.btn-primary:hover{background:var(--brand-800);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-md);}
.btn-primary:active{transform:translateY(0);box-shadow:none;}
.btn-accent{background:var(--accent-500);color:#fff;}
.btn-accent:hover{background:var(--accent-700);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-md);}
.btn-accent:active{transform:translateY(0);box-shadow:none;}
.btn-outline{background:transparent;border-color:var(--line);color:var(--ink-900);}
.btn-outline:hover{background:var(--surface-2);border-color:#C7D2CA;color:var(--ink-900);}
.btn-sm{padding:9px 16px;font-size:14px;}
.btn-lg{padding:14px 28px;font-size:16px;}
.btn[disabled],.btn:disabled{opacity:.55;cursor:not-allowed;transform:none;box-shadow:none;}

.link-arrow{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:15px;
  font-weight:500;
  color:var(--brand-600);
  text-decoration:underline;
  text-decoration-thickness:1px;
  text-underline-offset:3px;
  transition:color .18s ease-out,gap .18s ease-out;
}
.link-arrow:hover{color:var(--accent-700);gap:9px;text-decoration-thickness:2px;}

/* ---------- 页头横幅 ---------- */
.page-banner{
  position:relative;
  padding:56px 0 112px;
  background-image:
    linear-gradient(120deg,rgba(15,30,25,.66),rgba(20,61,46,.78)),
    url("/assets/images/backpic/back-1.webp");
  background-size:cover;
  background-position:center;
  color:#fff;
  overflow:hidden;
}
.page-banner::after{
  content:"";
  position:absolute;
  inset:0;
  background-image:repeating-linear-gradient(125deg,rgba(255,255,255,.05) 0 1px,transparent 1px 14px);
  pointer-events:none;
}
.page-banner .container{position:relative;z-index:2;}

.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:14px;
  color:rgba(255,255,255,.78);
  margin-bottom:18px;
}
.breadcrumb a{color:rgba(255,255,255,.86);}
.breadcrumb a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px;}
.breadcrumb .sep{opacity:.6;}
.breadcrumb .current{color:rgba(255,255,255,.62);}

.page-banner h1{
  font-size:42px;
  line-height:1.25;
  color:#fff;
  max-width:860px;
  margin-bottom:18px;
}
.page-banner .lede{
  max-width:780px;
  font-size:16px;
  line-height:1.9;
  color:rgba(255,255,255,.88);
}

/* ---------- 指标带 ---------- */
.metric-band{
  position:relative;
  z-index:5;
  margin-top:-64px;
  display:grid;
  grid-template-columns:repeat(4,1fr);
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-md);
  padding:30px 6px;
}
.metric-item{
  padding:0 24px;
  border-right:1px solid var(--line);
}
.metric-item:last-child{border-right:0;}
.metric-num{
  font-family:var(--font-num);
  font-size:36px;
  font-weight:600;
  letter-spacing:-.01em;
  line-height:1.2;
  color:var(--accent-500);
}
.metric-label{
  margin-top:6px;
  font-size:14px;
  color:var(--text-2);
  line-height:1.6;
}

/* ---------- 板块 ---------- */
.section{padding:var(--space-section) 0;}
.section-alt{background:var(--surface-2);}
.section-head{max-width:760px;margin-bottom:32px;}
.section-head h2{font-size:32px;line-height:1.35;}
.section-head p{margin-top:14px;font-size:16px;color:var(--text-2);line-height:1.85;}
.eyebrow{
  display:inline-block;
  margin-bottom:12px;
  padding:4px 12px;
  border-radius:var(--radius-pill);
  background:var(--brand-100);
  color:var(--brand-600);
  font-size:13px;
  font-weight:500;
  letter-spacing:.02em;
}

/* ---------- 卡片网格 ---------- */
.grid-cards{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:24px;
}
.card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:28px;
  box-shadow:var(--shadow-sm);
  transition:border-color .2s ease-out,transform .2s ease-out,box-shadow .2s ease-out;
}
.card:hover{
  border-color:rgba(31,92,70,.35);
  transform:translateY(-2px);
  box-shadow:var(--shadow-md);
}
.card:hover .card-title{color:var(--brand-600);}
.card-icon{
  width:46px;height:46px;
  display:flex;align-items:center;justify-content:center;
  border-radius:12px;
  background:var(--brand-100);
  color:var(--brand-600);
  margin-bottom:18px;
}
.card-icon svg{width:22px;height:22px;}
.card-index{
  font-family:var(--font-num);
  font-size:13px;
  font-weight:600;
  color:var(--accent-700);
  letter-spacing:.06em;
}
.card-title{
  font-size:21px;
  line-height:1.45;
  margin:8px 0 12px;
  transition:color .2s ease-out;
}
.card-text{
  font-size:16px;
  color:var(--text-2);
  line-height:1.85;
  margin-bottom:18px;
}

/* ---------- 图文区 ---------- */
.split{
  display:grid;
  grid-template-columns:1.05fr 1fr;
  gap:48px;
  align-items:center;
}
.split-media{
  border-radius:var(--radius-img);
  overflow:hidden;
  box-shadow:var(--shadow-md);
  aspect-ratio:4/3;
  background:var(--surface-2);
}
.split-media img{
  width:100%;height:100%;
  object-fit:cover;
}
.split h2{font-size:30px;line-height:1.35;margin-bottom:16px;}
.split p{font-size:16px;color:var(--text-2);line-height:1.85;margin-bottom:20px;}

.feature-list li{
  border-left:3px solid var(--brand-600);
  padding:2px 0 2px 18px;
  margin-bottom:22px;
}
.feature-list li:last-child{margin-bottom:0;}
.feature-list strong{
  display:block;
  font-size:17px;
  font-weight:700;
  color:var(--ink-900);
  margin-bottom:4px;
}
.feature-list span{font-size:15px;color:var(--text-2);line-height:1.75;}

/* ---------- 清单卡 ---------- */
.checklist{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.checklist-item{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:26px;
  box-shadow:var(--shadow-sm);
}
.checklist-item h3{font-size:19px;margin-bottom:10px;}
.checklist-item p{font-size:15px;color:var(--text-2);line-height:1.8;}
.tag{
  display:inline-block;
  margin-bottom:12px;
  padding:3px 10px;
  border-radius:6px;
  background:var(--accent-100);
  color:#9A4A18;
  font-size:13px;
  font-weight:500;
}

/* ---------- FAQ ---------- */
.faq-wrap{
  display:grid;
  grid-template-columns:1fr 300px;
  gap:48px;
  align-items:start;
}
.faq-list{border-top:1px solid var(--line);}
.faq-item{
  border-bottom:1px solid var(--line);
  border-left:3px solid var(--brand-600);
  padding-left:22px;
}
.faq-item summary{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:20px 0;
  font-size:18px;
  font-weight:500;
  color:var(--ink-900);
  cursor:pointer;
  list-style:none;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"+";
  flex:0 0 auto;
  font-size:22px;
  line-height:1;
  color:var(--brand-600);
  transition:transform .2s ease-out;
}
.faq-item[open] summary::after{transform:rotate(45deg);}
.faq-item summary:hover{color:var(--brand-600);}
.faq-answer{
  padding:0 0 22px;
  font-size:16px;
  color:var(--text-2);
  line-height:1.85;
}
.faq-aside{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:26px;
  box-shadow:var(--shadow-sm);
}
.faq-aside h3{font-size:18px;margin-bottom:10px;}
.faq-aside p{font-size:15px;color:var(--text-2);line-height:1.8;margin-bottom:18px;}

/* ---------- 表单 ---------- */
.form-band{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:36px;
  box-shadow:var(--shadow-sm);
}
.form-grid{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:20px 24px;
}
.field{display:flex;flex-direction:column;gap:8px;}
.field-full{grid-column:1 / -1;}
.field label{font-size:15px;font-weight:500;}
.field .req{color:var(--accent-500);}
.field input,
.field textarea{
  width:100%;
  border:1px solid var(--line);
  border-radius:var(--radius-btn);
  background:var(--surface);
  padding:0 16px;
  height:48px;
  font-size:15px;
  transition:border-color .18s ease-out,box-shadow .18s ease-out;
}
.field textarea{height:auto;padding:14px 16px;min-height:120px;resize:vertical;line-height:1.75;}
.field input:hover,
.field textarea:hover{border-color:#C7D2CA;}
.field input:focus,
.field textarea:focus{
  outline:none;
  border-color:var(--brand-600);
  box-shadow:0 0 0 3px rgba(31,92,70,.18);
}
.field input.error,
.field textarea.error{border-color:var(--warn);}
.field-note{font-size:14px;color:var(--text-2);}
.form-actions{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:18px;
  margin-top:8px;
}
.form-hint{font-size:14px;color:var(--text-2);}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;
  background:var(--brand-800);
  color:#fff;
  padding:72px 0 56px;
  overflow:hidden;
}
.cta-band::after{
  content:"";
  position:absolute;
  inset:0;
  background-image:repeating-linear-gradient(135deg,rgba(255,255,255,.05) 0 1px,transparent 1px 16px);
  pointer-events:none;
}
.cta-inner{
  position:relative;
  z-index:2;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:36px;
}
.cta-inner h2{
  font-size:30px;
  color:#fff;
  line-height:1.4;
  max-width:620px;
}
.cta-inner p{
  margin-top:12px;
  font-size:16px;
  color:rgba(255,255,255,.8);
  max-width:620px;
  line-height:1.85;
}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--brand-800);
  color:rgba(255,255,255,.78);
  padding:64px 0 0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.2fr;
  gap:40px;
  padding-bottom:44px;
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .logo-text{color:#fff;}
.footer-brand .logo-mark{background:rgba(255,255,255,.12);}
.footer-desc{font-size:15px;line-height:1.85;color:rgba(255,255,255,.72);max-width:360px;}
.footer-title{font-size:15px;color:#fff;margin-bottom:16px;font-family:var(--font-sans);font-weight:700;letter-spacing:.02em;}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{font-size:15px;color:rgba(255,255,255,.72);}
.footer-links a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px;}
.footer-contact li{font-size:15px;line-height:1.8;margin-bottom:10px;color:rgba(255,255,255,.72);}
.footer-contact strong{display:block;color:#fff;font-weight:500;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.14);
  padding:20px 0;
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  gap:10px;
  font-size:13px;
  color:rgba(255,255,255,.6);
}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .container{padding:0 24px;}
  .nav-search{max-width:420px;}
  .nav-link{padding:0 10px;font-size:14px;}
  .page-banner h1{font-size:36px;}
  .section-head h2{font-size:28px;}
}

@media (max-width:991px){
  :root{--space-section:72px;}
  .nav-search{display:none;}
  .nav-links .nav-link{display:none;}
  .nav-toggle{display:flex;margin-left:auto;}
  .nav-main{gap:10px;}
  .page-banner{padding:44px 0 100px;}
  .page-banner h1{font-size:32px;}
  .metric-band{grid-template-columns:repeat(2,1fr);padding:24px 0;}
  .metric-item{padding:14px 24px;border-right:0;}
  .metric-item:nth-child(odd){border-right:1px solid var(--line);}
  .metric-item:nth-child(n+3){border-top:1px solid var(--line);}
  .grid-cards{grid-template-columns:1fr;}
  .split{grid-template-columns:1fr;gap:28px;}
  .checklist{grid-template-columns:1fr;}
  .faq-wrap{grid-template-columns:1fr;gap:32px;}
  .cta-inner{flex-direction:column;align-items:flex-start;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}

@media (min-width:992px){
  .nav-drawer{display:none !important;}
}

@media (max-width:767px){
  body{font-size:16px;line-height:1.8;}
  .container{padding:0 18px;}
  .page-banner h1{font-size:28px;}
  .page-banner .lede{font-size:15px;}
  .section-head h2{font-size:24px;}
  .split h2{font-size:24px;}
  .card{padding:22px;}
  .card-title{font-size:19px;}
  .form-band{padding:24px;}
  .form-grid{grid-template-columns:1fr;}
  .cta-inner h2{font-size:24px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-desc{max-width:none;}
  .faq-item summary{font-size:17px;}
  .metric-num{font-size:30px;}
}

@media (max-width:519px){
  .metric-band{grid-template-columns:1fr;margin-top:-48px;}
  .metric-item{padding:14px 20px;border-right:0 !important;border-top:1px solid var(--line);}
  .metric-item:first-child{border-top:0;}
  .logo-text{font-size:17px;}
  .btn{width:100%;}
  .btn-inline{width:auto;}
  .search-input{height:46px;}
}

/* roulang page: category4 */
:root{
  --brand-600:#1F5C46;
  --brand-800:#143D2E;
  --brand-100:#E4EFE9;
  --accent-500:#E07A3C;
  --accent-700:#B85A22;
  --accent-100:#FBE9DC;
  --accent-ink:#9A4A18;
  --bg:#F7F5F0;
  --surface:#FFFFFF;
  --surface-2:#EFF3EF;
  --ink-900:#0F1E19;
  --text-2:#5A6A62;
  --line:#DDE3DC;
  --success:#2E7D5B;
  --warn:#C2502B;
  --info:#3A6E8F;
  --r-card:14px;
  --r-img:12px;
  --r-btn:10px;
  --r-input:10px;
  --sh-sm:0 1px 2px rgba(15,30,25,.06);
  --sh-md:0 8px 24px -12px rgba(15,30,25,.18);
  --sh-lg:0 24px 48px -24px rgba(15,30,25,.24);
  --sans:"Noto Sans SC","HarmonyOS Sans","PingFang SC","Microsoft YaHei",Arial,sans-serif;
  --serif:"Noto Serif SC","Songti SC","SimSun",Georgia,serif;
  --num:"DIN Alternate","Roboto Mono",ui-monospace,SFMono-Regular,Menlo,monospace;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink-900);
  font-family:var(--sans);
  font-size:17px;
  line-height:1.85;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto;}
a{color:var(--brand-600);text-decoration:none;transition:color .18s ease-out;}
a:hover{color:var(--brand-800);}
button,input,textarea,select{font:inherit;color:inherit;}
h1,h2,h3,h4{
  font-family:var(--serif);
  font-weight:700;
  letter-spacing:.01em;
  line-height:1.35;
  margin:0;
}
h1{font-size:44px;line-height:1.25;}
h2{font-size:32px;line-height:1.3;}
h3{font-size:22px;line-height:1.4;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--brand-600);outline-offset:2px;border-radius:4px;}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px;}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--brand-600);color:#fff;padding:12px 20px;border-radius:0 0 10px 0;z-index:200;}
.skip-link:focus{left:0;color:#fff;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:var(--r-btn);
  font-size:16px;font-weight:500;line-height:1.2;
  border:1px solid transparent;cursor:pointer;
  min-height:44px;
  transition:background-color .18s ease-out,color .18s ease-out,transform .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out;
}
.btn-primary{background:var(--brand-600);color:#fff;box-shadow:var(--sh-sm);}
.btn-primary:hover{background:var(--brand-800);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-md);}
.btn-primary:active{transform:translateY(0);box-shadow:none;}
.btn-accent{background:var(--accent-500);color:#fff;box-shadow:var(--sh-sm);}
.btn-accent:hover{background:var(--accent-700);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-md);}
.btn-accent:active{transform:translateY(0);box-shadow:none;}
.btn-ghost{background:transparent;color:var(--ink-900);border-color:var(--line);}
.btn-ghost:hover{background:var(--surface-2);color:var(--ink-900);border-color:var(--brand-600);}
.btn-outline{background:transparent;color:var(--brand-600);border-color:var(--brand-600);}
.btn-outline:hover{background:var(--brand-100);color:var(--brand-800);}
.btn-sm{padding:9px 16px;font-size:14px;min-height:38px;}
.btn[disabled],.btn:disabled{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none;}
.text-link{
  display:inline-flex;align-items:center;gap:6px;
  font-size:15px;font-weight:500;color:var(--brand-600);
  text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px;
  transition:color .18s ease-out,gap .18s ease-out;
}
.text-link:hover{color:var(--brand-800);gap:10px;text-decoration-thickness:2px;}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:100;
  background:rgba(247,245,240,.96);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
}
.header-top{
  display:grid;
  grid-template-columns:auto minmax(280px,1fr) auto;
  align-items:center;
  gap:28px;
  padding-top:14px;padding-bottom:14px;
}
.logo{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;}
.logo-mark{
  width:38px;height:38px;border-radius:11px;
  background:var(--brand-600);
  display:inline-flex;align-items:center;justify-content:center;
  flex-shrink:0;
}
.logo-mark svg{width:22px;height:22px;}
.logo-text{
  font-family:var(--serif);
  font-size:21px;font-weight:700;color:var(--ink-900);letter-spacing:.02em;
}
.nav-search{
  position:relative;
  width:100%;max-width:560px;
  margin:0 auto;
  display:flex;align-items:center;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:999px;
  height:44px;
  padding:0 8px 0 6px;
  transition:border-color .18s ease-out,box-shadow .18s ease-out;
}
.nav-search:focus-within{
  border-color:var(--brand-600);
  box-shadow:0 0 0 3px rgba(31,92,70,.18);
}
.nav-search .search-btn{
  width:34px;height:34px;border:0;background:transparent;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:999px;cursor:pointer;color:var(--text-2);
  transition:color .18s ease-out,background-color .18s ease-out;
}
.nav-search .search-btn:hover{color:var(--brand-600);background:var(--brand-100);}
.nav-search .search-btn svg{width:18px;height:18px;}
.nav-search input{
  flex:1;border:0;background:transparent;outline:none;
  font-size:15px;height:100%;padding:0 8px;min-width:0;
}
.nav-search input::placeholder{color:#8A9990;}
.nav-links{display:flex;align-items:center;gap:22px;flex-shrink:0;}
.nav-link{
  font-size:15px;font-weight:500;color:var(--ink-900);position:relative;padding:6px 0;
  transition:color .18s ease-out;
}
.nav-link:hover{color:var(--brand-600);}
.nav-link.is-active{color:var(--brand-600);}
.nav-link.is-active::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;
  background:var(--accent-500);border-radius:2px;
}
.hamburger{
  display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:var(--r-btn);
  background:var(--surface);align-items:center;justify-content:center;cursor:pointer;
}
.hamburger svg{width:20px;height:20px;}
.chips-row{border-top:1px solid var(--line);}
.chips-inner{
  display:flex;align-items:center;gap:14px;
  padding-top:10px;padding-bottom:10px;
}
.chips-label{font-size:13px;color:var(--text-2);flex-shrink:0;}
.cat-chips{
  display:flex;gap:10px;overflow-x:auto;scrollbar-width:none;
  padding-bottom:2px;
}
.cat-chips::-webkit-scrollbar{display:none;}
.chip{
  flex-shrink:0;
  display:inline-flex;align-items:center;
  height:32px;padding:0 14px;border-radius:8px;
  background:var(--surface-2);color:var(--text-2);
  font-size:14px;font-weight:500;
  transition:background-color .18s ease-out,color .18s ease-out;
}
.chip:hover{background:var(--brand-100);color:var(--brand-800);}
.chip.is-active{
  background:var(--brand-100);color:var(--brand-600);
  box-shadow:inset 0 -2px 0 var(--accent-500);
}

/* 移动抽屉 */
.mobile-drawer{
  display:none;
  position:fixed;left:0;right:0;top:0;bottom:0;z-index:150;
  background:var(--bg);
  padding:18px;
  overflow-y:auto;
}
.mobile-drawer.is-open{display:block;}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px;}
.drawer-close{
  width:44px;height:44px;border:1px solid var(--line);border-radius:var(--r-btn);
  background:var(--surface);cursor:pointer;display:inline-flex;align-items:center;justify-content:center;
}
.drawer-close svg{width:20px;height:20px;}
.drawer-search{display:flex;align-items:center;background:var(--surface);border:1px solid var(--line);border-radius:999px;height:44px;padding:0 12px;gap:8px;margin-bottom:18px;}
.drawer-search input{flex:1;border:0;background:transparent;outline:none;font-size:15px;min-width:0;}
.drawer-search svg{width:18px;height:18px;color:var(--text-2);}
.drawer-list{border-top:1px solid var(--line);}
.drawer-list a{
  display:flex;align-items:center;justify-content:space-between;
  padding:15px 4px;border-bottom:1px solid var(--line);
  font-size:16px;font-weight:500;color:var(--ink-900);
}
.drawer-list a.is-active{color:var(--brand-600);}
.drawer-list a span.go{color:var(--text-2);font-size:14px;}

/* ============ 通用板块 ============ */
.section{padding:96px 0;}
.section-tight{padding:72px 0;}
.section-head{max-width:760px;margin-bottom:32px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:.08em;
  color:var(--accent-700);
  background:var(--accent-100);
  padding:5px 12px;border-radius:999px;
  margin-bottom:16px;
}
.section-head h2{color:var(--ink-900);}
.section-desc{margin-top:14px;color:var(--text-2);font-size:16px;line-height:1.85;}
.rule{width:48px;height:4px;background:var(--brand-600);border-radius:3px;margin-bottom:20px;}

/* ============ 页头 ============ */
.page-hero{
  background:
    linear-gradient(180deg,rgba(228,239,233,.55) 0%,rgba(247,245,240,0) 68%),
    var(--bg);
  padding:36px 0 56px;
  border-bottom:1px solid var(--line);
}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--text-2);margin-bottom:26px;flex-wrap:wrap;}
.breadcrumb a{color:var(--text-2);}
.breadcrumb a:hover{color:var(--brand-600);}
.breadcrumb .sep{color:#B6C0B9;}
.breadcrumb .current{color:var(--text-2);}
.hero-grid{
  display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);
  gap:48px;align-items:center;
}
.hero-tag{
  display:inline-block;font-size:13px;font-weight:600;
  color:var(--accent-ink);background:var(--accent-100);
  padding:5px 12px;border-radius:6px;margin-bottom:18px;
}
.page-hero h1{color:var(--ink-900);}
.hero-lead{
  margin-top:18px;font-size:17px;line-height:1.85;color:var(--text-2);
  max-width:640px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;}
.hero-media img{
  width:100%;aspect-ratio:3/2;object-fit:cover;
  border-radius:var(--r-img);
  border:1px solid var(--line);
  box-shadow:var(--sh-md);
}

/* ============ 指标带 ============ */
.metrics{background:var(--surface);border-bottom:1px solid var(--line);}
.metrics-grid{
  display:grid;grid-template-columns:repeat(4,1fr);
  gap:24px;padding-top:32px;padding-bottom:32px;
}
.metric{border-left:3px solid var(--brand-100);padding-left:16px;}
.metric strong{
  display:block;
  font-family:var(--num);font-size:36px;font-weight:600;
  color:var(--accent-500);letter-spacing:-.01em;line-height:1.15;
}
.metric span{display:block;margin-top:6px;font-size:14px;color:var(--text-2);line-height:1.6;}

/* ============ 对比区布局 ============ */
.compare-layout{
  display:grid;grid-template-columns:minmax(0,1fr) 320px;
  gap:32px;align-items:start;
}
.compare-block{margin-bottom:32px;}
.compare-block:last-of-type{margin-bottom:0;}
.compare-block-head{
  display:flex;align-items:center;gap:12px;margin-bottom:16px;flex-wrap:wrap;
}
.compare-block-head h3{color:var(--ink-900);}
.compare-block-head .badge{
  font-size:13px;font-weight:600;color:var(--brand-800);
  background:var(--brand-100);padding:4px 10px;border-radius:6px;
}
.compare-table{
  border:1px solid var(--line);border-radius:var(--r-card);
  background:var(--surface);overflow:hidden;box-shadow:var(--sh-sm);
}
.compare-head{
  display:grid;grid-template-columns:130px 1fr 1fr;
  background:var(--brand-100);
  border-bottom:1px solid var(--line);
}
.compare-head span{
  padding:14px 18px;font-size:14px;font-weight:600;color:var(--brand-800);
}
.compare-head span:last-child{color:var(--brand-600);background:rgba(255,255,255,.45);}
.compare-row{
  display:grid;grid-template-columns:130px 1fr 1fr;
  border-bottom:1px solid var(--line);
}
.compare-row:nth-child(even){background:var(--surface-2);}
.compare-row:last-child{border-bottom:0;}
.compare-row > span{padding:16px 18px;font-size:15px;line-height:1.75;color:var(--text-2);}
.compare-row .row-key{
  font-weight:600;color:var(--ink-900);font-size:14px;
  background:rgba(255,255,255,.6);
}
.compare-row .row-b{color:var(--ink-900);border-left:1px solid var(--line);}
.compare-note{margin-top:14px;font-size:14px;color:var(--text-2);}

/* ============ 咨询表单 ============ */
.consult-card{
  position:sticky;top:88px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:26px;
  box-shadow:var(--sh-md);
}
.consult-card h3{font-size:20px;margin-bottom:8px;}
.consult-card .consult-sub{font-size:14px;color:var(--text-2);line-height:1.7;margin-bottom:20px;}
.field{margin-bottom:16px;}
.field label{
  display:block;font-size:14px;font-weight:500;color:var(--ink-900);margin-bottom:8px;
}
.field .req{color:var(--accent-500);margin-left:3px;}
.field input,.field textarea{
  width:100%;border:1px solid var(--line);border-radius:var(--r-input);
  background:var(--surface);padding:12px 14px;font-size:15px;
  min-height:48px;outline:none;
  transition:border-color .18s ease-out,box-shadow .18s ease-out;
}
.field textarea{min-height:104px;resize:vertical;line-height:1.7;}
.field input:focus,.field textarea:focus{
  border-color:var(--brand-600);
  box-shadow:0 0 0 3px rgba(31,92,70,.16);
}
.field input::placeholder,.field textarea::placeholder{color:#93A199;}
.privacy{margin-top:12px;font-size:13px;color:var(--text-2);line-height:1.7;}
.form-tip{
  display:none;margin-top:14px;padding:12px 14px;border-radius:10px;
  background:var(--brand-100);border:1px solid #C4DCD1;color:var(--brand-800);
  font-size:14px;line-height:1.7;
}
.form-tip.is-visible{display:block;}

/* ============ 结论 / 图文 ============ */
.conclusion{
  display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);
  gap:48px;align-items:center;
}
.conclusion img{
  width:100%;aspect-ratio:4/3;object-fit:cover;
  border-radius:var(--r-img);border:1px solid var(--line);box-shadow:var(--sh-sm);
}
.conclusion h2{margin-bottom:16px;}
.conclusion p{color:var(--text-2);font-size:16px;margin-bottom:14px;}
.point-list{margin-top:22px;display:grid;gap:14px;}
.point-list li{
  display:flex;gap:12px;align-items:flex-start;
  padding-left:14px;border-left:3px solid var(--brand-600);
}
.point-list .pnum{
  font-family:var(--num);font-weight:600;color:var(--accent-500);
  font-size:15px;line-height:1.9;flex-shrink:0;
}
.point-list .ptext{font-size:16px;color:var(--ink-900);line-height:1.8;}

/* ============ 服务卡片 ============ */
.card-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.service-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px;box-shadow:var(--sh-sm);
  transition:transform .2s ease-out,box-shadow .2s ease-out,border-color .2s ease-out;
}
.service-card:hover{
  transform:translateY(-2px);
  box-shadow:var(--sh-md);
  border-color:rgba(31,92,70,.3);
}
.service-card .icon-box{
  width:44px;height:44px;border-radius:11px;background:var(--brand-100);
  display:inline-flex;align-items:center;justify-content:center;margin-bottom:16px;
}
.service-card .icon-box svg{width:22px;height:22px;color:var(--brand-600);}
.service-card h3{font-size:20px;margin-bottom:10px;}
.service-card p{font-size:15px;color:var(--text-2);line-height:1.8;margin-bottom:14px;}
.service-card .card-meta{font-size:13px;color:var(--text-2);display:flex;gap:10px;flex-wrap:wrap;padding-top:14px;border-top:1px solid var(--line);}

/* ============ FAQ ============ */
.faq-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:32px;align-items:start;}
.faq{border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);border-left:3px solid var(--brand-600);padding-left:20px;}
.faq-question{
  width:100%;background:transparent;border:0;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 0;text-align:left;
  font-size:18px;font-weight:500;color:var(--ink-900);font-family:var(--sans);
  transition:color .18s ease-out;
}
.faq-question:hover{color:var(--brand-600);}
.faq-icon{
  width:22px;height:22px;flex-shrink:0;position:relative;
  transition:transform .2s ease-out;
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--brand-600);border-radius:2px;
}
.faq-icon::before{left:50%;top:4px;width:2px;height:14px;transform:translateX(-50%);}
.faq-icon::after{top:50%;left:4px;height:2px;width:14px;transform:translateY(-50%);}
.faq-item.is-open .faq-icon{transform:rotate(45deg);}
.faq-answer{max-height:0;overflow:hidden;transition:max-height .22s ease-out;}
.faq-answer p{font-size:16px;color:var(--text-2);line-height:1.85;padding-bottom:20px;}
.faq-item.is-open .faq-answer{max-height:360px;}
.ask-card{
  background:var(--surface-2);border:1px solid var(--line);border-radius:var(--r-card);
  padding:24px;
}
.ask-card h3{font-size:19px;margin-bottom:10px;}
.ask-card p{font-size:15px;color:var(--text-2);margin-bottom:18px;line-height:1.8;}

/* ============ CTA ============ */
.cta-band{
  background:
    repeating-linear-gradient(115deg, rgba(255,255,255,.045) 0 2px, transparent 2px 22px),
    var(--brand-800);
  color:#fff;
  border-radius:0;
  padding:72px 0 56px;
}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;}
.cta-band h2{color:#fff;font-size:30px;}
.cta-band p{color:rgba(255,255,255,.78);margin-top:12px;font-size:16px;max-width:620px;}
.cta-band .btn-accent{flex-shrink:0;}

/* ============ 页脚 ============ */
.site-footer{background:var(--brand-800);color:rgba(255,255,255,.82);padding:64px 0 28px;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:36px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.footer-brand .logo-mark{width:34px;height:34px;background:rgba(255,255,255,.12);border-radius:10px;}
.footer-brand .logo-text{color:#fff;font-family:var(--serif);font-size:19px;font-weight:700;}
.footer-desc{font-size:14px;line-height:1.85;color:rgba(255,255,255,.7);max-width:340px;}
.footer-title{font-family:var(--sans);font-size:15px;font-weight:600;color:#fff;margin-bottom:16px;letter-spacing:.02em;}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{font-size:14px;color:rgba(255,255,255,.72);transition:color .18s ease-out,padding-left .18s ease-out;}
.footer-links a:hover{color:#fff;padding-left:4px;}
.footer-contact{display:flex;flex-direction:column;gap:12px;font-size:14px;color:rgba(255,255,255,.72);}
.footer-contact strong{display:block;color:#fff;font-weight:500;font-size:13px;margin-bottom:2px;}
.footer-bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid rgba(255,255,255,.14);
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.6);
}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  h1{font-size:36px;}
  h2{font-size:28px;}
  .section{padding:72px 0;}
  .header-top{gap:20px;}
  .nav-links{gap:16px;}
  .compare-layout{grid-template-columns:minmax(0,1fr) 300px;}
}
@media (max-width:991px){
  .nav-links{display:none;}
  .nav-search{display:none;}
  .hamburger{display:inline-flex;}
  .header-top{grid-template-columns:1fr auto;gap:16px;}
  .hero-grid{grid-template-columns:1fr;gap:32px;}
  .hero-media{order:-1;}
  .metrics-grid{grid-template-columns:repeat(2,1fr);gap:20px;}
  .compare-layout{grid-template-columns:1fr;}
  .consult-card{position:static;}
  .conclusion{grid-template-columns:1fr;gap:32px;}
  .faq-layout{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
}
@media (max-width:767px){
  body{font-size:16px;line-height:1.8;}
  .container{padding:0 18px;}
  h1{font-size:28px;}
  h2{font-size:24px;}
  h3{font-size:19px;}
  .section{padding:56px 0;}
  .section-tight{padding:48px 0;}
  .page-hero{padding:24px 0 40px;}
  .card-grid{grid-template-columns:1fr;gap:20px;}
  .metrics-grid{grid-template-columns:1fr;gap:18px;padding-top:24px;padding-bottom:24px;}
  .metric strong{font-size:30px;}
  .compare-head{display:none;}
  .compare-row{grid-template-columns:1fr;padding:6px 0;}
  .compare-row > span{padding:8px 16px;}
  .compare-row .row-key{background:transparent;border-bottom:1px solid var(--line);}
  .compare-row .row-b{border-left:0;}
  .compare-row span[data-label]::before{
    content:attr(data-label) "：";color:var(--text-2);font-size:13px;
  }
  .cta-band{padding:52px 0 44px;}
  .cta-band h2{font-size:23px;}
  .cta-inner{flex-direction:column;align-items:flex-start;}
  .cta-band .btn-accent{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  .faq-question{font-size:17px;}
}
@media (max-width:479px){
  .hero-actions{flex-direction:column;align-items:stretch;}
  .hero-actions .btn{width:100%;}
  .metric{border-left-width:2px;}
}

/* roulang page: category3 */
:root{
  --brand-600:#1F5C46;
  --brand-800:#143D2E;
  --brand-100:#E4EFE9;
  --accent-500:#E07A3C;
  --accent-700:#B85A22;
  --accent-100:#FBE9DC;
  --bg:#F7F5F0;
  --surface:#FFFFFF;
  --surface-2:#EFF3EF;
  --ink-900:#0F1E19;
  --text-2:#5A6A62;
  --line:#DDE3DC;
  --success:#2E7D5B;
  --warning:#C2502B;
  --info:#3A6E8F;
  --radius-card:14px;
  --radius-img:12px;
  --radius-btn:10px;
  --shadow-sm:0 1px 2px rgba(15,30,25,.06);
  --shadow-md:0 8px 24px -12px rgba(15,30,25,.18);
  --shadow-lg:0 24px 48px -24px rgba(15,30,25,.24);
  --sans:"Noto Sans SC","HarmonyOS Sans","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --serif:"Noto Serif SC","Songti SC","SimSun",serif;
  --section:96px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink-900);
  font-family:var(--sans);
  font-size:17px;
  line-height:1.85;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;}
a{color:var(--brand-600);text-decoration:none;transition:color .18s ease-out,text-decoration-color .18s ease-out;}
a:hover{color:var(--brand-800);}
button,input,textarea,select{font:inherit;color:inherit;}
h1,h2,h3,h4{margin:0;font-family:var(--serif);font-weight:700;color:var(--ink-900);letter-spacing:.01em;line-height:1.35;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--brand-600);outline-offset:2px;}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--brand-600);color:#fff;padding:10px 18px;border-radius:0 0 var(--radius-btn) 0;z-index:200;}
.skip-link:focus{left:0;color:#fff;}

.container{max-width:1200px;margin:0 auto;padding:0 32px;}
.section{padding:var(--section) 0;}
.section-tight{padding:72px 0;}
.section-head{max-width:760px;margin-bottom:32px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:500;color:var(--brand-600);
  background:var(--brand-100);border-radius:999px;padding:5px 14px;margin-bottom:16px;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent-500);}
h1{font-size:44px;line-height:1.25;}
h2{font-size:32px;}
h3{font-size:22px;}
.lead{font-size:17px;color:var(--text-2);line-height:1.85;}
.rule-accent{display:block;width:64px;height:4px;border-radius:2px;background:var(--brand-600);margin:24px 0;}
.rule-accent.accent{background:var(--accent-500);}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:12px 22px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:500;cursor:pointer;border:1px solid transparent;
  transition:background-color .18s ease-out,color .18s ease-out,border-color .18s ease-out,transform .18s ease-out,box-shadow .18s ease-out;
  text-align:center;
}
.btn-primary{background:var(--brand-600);color:#fff;box-shadow:var(--shadow-sm);}
.btn-primary:hover{background:var(--brand-800);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-md);}
.btn-primary:active{transform:translateY(0);box-shadow:none;}
.btn-accent{background:var(--accent-500);color:#fff;box-shadow:var(--shadow-sm);}
.btn-accent:hover{background:var(--accent-700);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-md);}
.btn-accent:active{transform:translateY(0);box-shadow:none;}
.btn-outline{border-color:var(--line);background:transparent;color:var(--ink-900);}
.btn-outline:hover{background:var(--surface-2);color:var(--ink-900);border-color:#C9D3CB;}
.btn-ghost{color:var(--brand-600);padding:12px 4px;background:none;}
.btn-ghost:hover{color:var(--brand-800);}
.btn-sm{min-height:38px;padding:8px 16px;font-size:14px;}
.btn:disabled{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none;background:var(--surface-2);color:var(--text-2);border-color:var(--line);}
.text-link{font-weight:500;text-decoration:underline;text-underline-offset:3px;}
.text-link:hover{color:var(--brand-800);text-decoration-thickness:2px;}
.text-link::after{content:" →";display:inline-block;transition:transform .18s ease-out;}
.text-link:hover::after{transform:translateX(2px);}

/* ===== 徽章 / 标签 ===== */
.badge{
  display:inline-block;font-size:13px;line-height:1.6;font-weight:500;
  background:var(--accent-100);color:#9A4A18;border-radius:6px;padding:2px 10px;
}
.tag{
  display:inline-block;font-size:13px;color:var(--text-2);
  background:var(--surface-2);border:1px solid var(--line);border-radius:999px;padding:5px 14px;
}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;}

/* ===== 头部导航 ===== */
.site-header{
  position:sticky;top:0;z-index:60;background:var(--surface);
  border-bottom:1px solid var(--line);box-shadow:var(--shadow-sm);
}
.header-inner{display:flex;align-items:center;gap:24px;min-height:72px;}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.logo-mark{
  width:38px;height:38px;border-radius:11px;background:var(--brand-600);
  display:inline-flex;align-items:center;justify-content:center;flex-shrink:0;
}
.logo-mark svg{width:22px;height:22px;}
.logo-text{font-family:var(--serif);font-size:19px;font-weight:700;color:var(--ink-900);letter-spacing:.02em;}
.nav-search{
  position:relative;flex:1 1 auto;max-width:560px;margin:0 auto;
}
.nav-search input{
  width:100%;height:44px;border-radius:999px;border:1px solid var(--line);
  background:var(--surface);padding:0 18px 0 46px;font-size:15px;color:var(--ink-900);
  transition:border-color .18s ease-out,box-shadow .18s ease-out;
}
.nav-search input::placeholder{color:#8B978F;}
.nav-search input:hover{border-color:#C9D3CB;}
.nav-search input:focus{outline:none;border-color:var(--brand-600);box-shadow:0 0 0 3px rgba(31,92,70,.18);}
.nav-search .search-icon{
  position:absolute;left:16px;top:50%;transform:translateY(-50%);
  width:18px;height:18px;color:var(--text-2);pointer-events:none;
}
.nav-links{display:flex;align-items:center;gap:6px;flex-shrink:0;}
.nav-link{
  position:relative;display:inline-flex;align-items:center;min-height:40px;
  padding:8px 12px;border-radius:8px;font-size:15px;color:var(--ink-900);font-weight:500;
  transition:background-color .18s ease-out,color .18s ease-out;
}
.nav-link:hover{background:var(--surface-2);color:var(--brand-600);}
.nav-link.is-active{color:var(--brand-600);}
.nav-link.is-active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;
  background:var(--accent-500);border-radius:2px;
}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:10px;
  background:var(--surface);cursor:pointer;align-items:center;justify-content:center;
}
.nav-toggle:hover{background:var(--surface-2);}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink-900);position:relative;}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink-900);
}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}

.chips-row{border-top:1px solid var(--line);}
.chips-scroll{
  display:flex;gap:10px;overflow-x:auto;padding:10px 0;scrollbar-width:thin;
}
.chips-scroll::-webkit-scrollbar{height:4px;}
.chips-scroll::-webkit-scrollbar-thumb{background:var(--line);border-radius:4px;}
.chip{
  flex:0 0 auto;display:inline-flex;align-items:center;height:32px;padding:0 14px;
  border-radius:8px;background:var(--surface-2);color:var(--text-2);font-size:14px;font-weight:500;
  transition:background-color .18s ease-out,color .18s ease-out;
}
.chip:hover{background:var(--brand-100);color:var(--brand-800);}
.chip.is-active{
  background:var(--brand-100);color:var(--brand-600);
  box-shadow:inset 0 -2px 0 var(--accent-500);
}

.mobile-drawer{
  display:none;border-top:1px solid var(--line);background:var(--surface);padding:16px 0 24px;
}
.mobile-drawer.is-open{display:block;}
.mobile-drawer .nav-search{max-width:none;margin:0 0 16px;}
.mobile-drawer .drawer-links{display:flex;flex-direction:column;}
.mobile-drawer .drawer-links a{
  display:flex;align-items:center;justify-content:space-between;
  min-height:48px;padding:0 4px;border-bottom:1px solid var(--line);
  color:var(--ink-900);font-size:16px;font-weight:500;
}
.mobile-drawer .drawer-links a:hover{color:var(--brand-600);}
.mobile-drawer .drawer-links a.is-active{color:var(--brand-600);}
.mobile-drawer .drawer-cta{margin-top:16px;}

/* ===== 面包屑 ===== */
.breadcrumb{padding:20px 0 0;font-size:14px;color:var(--text-2);}
.breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;}
.breadcrumb li{display:flex;align-items:center;gap:8px;}
.breadcrumb li+li::before{content:"/";color:#B4BEB7;}
.breadcrumb a{color:var(--text-2);}
.breadcrumb a:hover{color:var(--brand-600);}
.breadcrumb .current{color:var(--ink-900);font-weight:500;}

/* ===== 页面首屏 ===== */
.page-hero{padding:40px 0 72px;}
.page-hero .hero-grid{
  display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:start;
}
.page-hero h1{margin-bottom:20px;}
.page-hero .hero-sub{
  font-size:17px;color:var(--text-2);line-height:1.9;max-width:620px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;}
.hero-tags span{
  font-size:13px;font-weight:500;color:var(--brand-800);
  background:var(--brand-100);border-radius:999px;padding:5px 14px;
}
.flow-panel{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:28px;box-shadow:var(--shadow-sm);
}
.flow-panel h2{font-size:19px;margin-bottom:6px;}
.flow-panel .panel-note{font-size:14px;color:var(--text-2);margin-bottom:18px;}
.flow-list{display:grid;gap:12px;}
.flow-list li{
  display:flex;gap:14px;align-items:flex-start;
  padding-bottom:12px;border-bottom:1px dashed var(--line);
}
.flow-list li:last-child{border-bottom:0;padding-bottom:0;}
.flow-list .idx{
  font-family:"DIN Alternate","Helvetica Neue",sans-serif;
  font-weight:600;font-size:14px;color:var(--accent-500);letter-spacing:-.01em;flex-shrink:0;min-width:26px;
}
.flow-list .txt{font-size:15px;line-height:1.7;}
.flow-list .txt strong{display:block;font-weight:600;color:var(--ink-900);}

/* ===== 指标带 ===== */
.metrics-band{
  background:var(--brand-800);color:#fff;border-radius:0;
}
.metrics-inner{
  display:grid;grid-template-columns:repeat(4,1fr);gap:24px;padding:48px 0;
}
.metric .num{
  font-family:"DIN Alternate","Helvetica Neue",sans-serif;
  font-size:38px;font-weight:600;letter-spacing:-.01em;color:#fff;line-height:1.2;
}
.metric .num em{font-style:normal;color:var(--accent-500);}
.metric .lbl{font-size:14px;color:rgba(255,255,255,.72);margin-top:6px;}

/* ===== 时间线 ===== */
.timeline{position:relative;margin-top:8px;}
.timeline::before{
  content:"";position:absolute;left:15px;top:10px;bottom:10px;width:3px;
  background:var(--brand-600);border-radius:3px;opacity:.85;
}
.tl-item{position:relative;padding-left:64px;margin-bottom:48px;}
.tl-item:last-child{margin-bottom:0;}
.tl-num{
  position:absolute;left:0;top:4px;width:32px;height:32px;border-radius:50%;
  background:var(--surface);border:1.5px solid var(--brand-600);color:var(--brand-600);
  display:grid;place-items:center;font-size:13px;font-weight:600;
  font-family:"DIN Alternate","Helvetica Neue",sans-serif;
}
.tl-body{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:26px 28px;box-shadow:var(--shadow-sm);
  transition:border-color .2s ease-out,transform .2s ease-out,box-shadow .2s ease-out;
}
.tl-body:hover{border-color:rgba(31,92,70,.3);transform:translateY(-2px);box-shadow:var(--shadow-md);}
.tl-body h3{font-size:20px;margin-bottom:10px;}
.tl-body p{color:var(--text-2);font-size:16px;margin-bottom:10px;}
.tl-body p:last-child{margin-bottom:0;}
.tl-points{display:grid;gap:8px;margin-top:16px;}
.tl-points li{
  position:relative;padding-left:20px;font-size:15px;color:var(--ink-900);
}
.tl-points li::before{
  content:"";position:absolute;left:0;top:12px;width:8px;height:2px;background:var(--brand-600);border-radius:2px;
}
.tl-meta{
  display:flex;flex-wrap:wrap;gap:10px;margin-top:18px;padding-top:16px;border-top:1px dashed var(--line);
}

/* ===== 通用卡片 ===== */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:28px;box-shadow:var(--shadow-sm);
  transition:border-color .2s ease-out,transform .2s ease-out,box-shadow .2s ease-out;
}
.card:hover{border-color:rgba(31,92,70,.3);transform:translateY(-2px);box-shadow:var(--shadow-md);}
.card h3{font-size:20px;margin-bottom:12px;}
.card p{color:var(--text-2);font-size:16px;}
.card .icon-box{
  width:44px;height:44px;border-radius:12px;background:var(--brand-100);color:var(--brand-600);
  display:grid;place-items:center;margin-bottom:18px;
}
.card .icon-box svg{width:22px;height:22px;}
.card .card-link{margin-top:18px;display:inline-block;font-size:15px;}

/* ===== 场景区（浅底） ===== */
.section-soft{background:var(--surface-2);}
.scene-layout{display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:center;}
.scene-list{display:grid;gap:20px;margin-top:28px;}
.scene-item{
  position:relative;padding:0 0 0 20px;border-left:3px solid var(--brand-600);
}
.scene-item h3{font-size:18px;margin-bottom:6px;}
.scene-item p{font-size:15px;color:var(--text-2);}
.scene-figure{border-radius:var(--radius-img);overflow:hidden;box-shadow:var(--shadow-md);}
.scene-figure img{width:100%;aspect-ratio:4/3;object-fit:cover;}
.scene-figure figcaption{font-size:13px;color:var(--text-2);padding:12px 4px 0;text-align:center;}

/* ===== 交付物列表 ===== */
.deliver-list{display:grid;grid-template-columns:repeat(2,1fr);gap:16px 32px;margin-top:28px;}
.deliver-list li{
  display:flex;gap:12px;align-items:flex-start;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--radius-card);padding:18px 20px;
  transition:border-color .2s ease-out,transform .2s ease-out;
}
.deliver-list li:hover{border-color:rgba(31,92,70,.3);transform:translateY(-2px);}
.deliver-list .mark{
  flex:0 0 auto;width:22px;height:22px;border-radius:50%;background:var(--brand-100);
  color:var(--brand-600);display:grid;place-items:center;font-size:13px;font-weight:700;margin-top:4px;
}
.deliver-list strong{display:block;font-size:16px;font-weight:600;margin-bottom:2px;}
.deliver-list span{font-size:14px;color:var(--text-2);}

/* ===== FAQ ===== */
.faq-layout{display:grid;grid-template-columns:1fr 320px;gap:48px;align-items:start;}
.faq-list{border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);border-left:3px solid transparent;padding-left:0;transition:border-color .2s ease-out,background-color .2s ease-out;}
.faq-item:hover{background:rgba(255,255,255,.6);}
.faq-item.is-open{border-left-color:var(--brand-600);background:var(--surface);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  background:none;border:0;cursor:pointer;text-align:left;
  padding:22px 18px 22px 20px;font-family:var(--serif);font-size:18px;font-weight:500;color:var(--ink-900);
  transition:color .18s ease-out;
}
.faq-q:hover{color:var(--brand-600);}
.faq-icon{
  flex:0 0 auto;width:24px;height:24px;position:relative;
  transition:transform .2s ease-out;
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--brand-600);border-radius:2px;
}
.faq-icon::before{left:0;top:11px;width:24px;height:2px;}
.faq-icon::after{left:11px;top:0;width:2px;height:24px;}
.faq-item.is-open .faq-icon{transform:rotate(45deg);}
.faq-a{
  display:none;padding:0 60px 24px 20px;font-size:16px;color:var(--text-2);line-height:1.85;
}
.faq-item.is-open .faq-a{display:block;}
.faq-aside{
  position:sticky;top:112px;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-card);padding:26px;box-shadow:var(--shadow-sm);
}
.faq-aside h3{font-size:19px;margin-bottom:10px;}
.faq-aside p{font-size:15px;color:var(--text-2);margin-bottom:18px;}

/* ===== CTA ===== */
.cta-band{
  position:relative;background:var(--brand-800);color:#fff;overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;inset:0;opacity:.06;
  background-image:repeating-linear-gradient(135deg,#fff 0 1px,transparent 1px 14px);
}
.cta-inner{
  position:relative;display:flex;align-items:center;justify-content:space-between;gap:32px;
  padding:72px 0 56px;
}
.cta-inner h2{color:#fff;font-size:32px;max-width:620px;}
.cta-inner p{color:rgba(255,255,255,.78);font-size:16px;margin-top:12px;max-width:560px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;flex-shrink:0;}
.cta-band .btn-outline{border-color:rgba(255,255,255,.5);color:#fff;}
.cta-band .btn-outline:hover{background:rgba(255,255,255,.12);color:#fff;border-color:rgba(255,255,255,.8);}

/* ===== 页脚 ===== */
.site-footer{background:var(--brand-800);color:rgba(255,255,255,.78);padding:64px 0 28px;position:relative;overflow:hidden;}
.site-footer::before{
  content:"";position:absolute;inset:0;opacity:.05;
  background-image:repeating-linear-gradient(45deg,#fff 0 1px,transparent 1px 16px);
}
.site-footer .container{position:relative;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .logo-mark{background:rgba(255,255,255,.12);}
.footer-brand .logo-text{color:#fff;font-family:var(--serif);font-size:19px;font-weight:700;}
.footer-desc{font-size:15px;line-height:1.8;color:rgba(255,255,255,.72);max-width:320px;}
.footer-title{font-family:var(--sans);font-size:15px;font-weight:600;color:#fff;margin-bottom:16px;letter-spacing:.02em;}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{color:rgba(255,255,255,.72);font-size:15px;}
.footer-links a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px;}
.footer-contact{display:flex;flex-direction:column;gap:12px;font-size:15px;color:rgba(255,255,255,.72);}
.footer-contact strong{display:block;color:#fff;font-weight:500;font-size:14px;}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  margin-top:48px;padding-top:22px;border-top:1px solid rgba(255,255,255,.14);
  font-size:14px;color:rgba(255,255,255,.6);
}

/* ===== 响应式 ===== */
@media (max-width:1199px){
  :root{--section:72px;}
  .container{padding:0 24px;}
  h1{font-size:36px;}
  h2{font-size:28px;}
  .header-inner{gap:16px;}
  .nav-search{max-width:420px;}
  .page-hero .hero-grid{gap:36px;}
  .footer-grid{grid-template-columns:1.3fr 1fr 1fr;gap:32px;}
  .footer-grid > div:last-child{grid-column:1/-1;}
}
@media (max-width:991px){
  .nav-links .nav-link{display:none;}
  .nav-links .btn-outline{display:none;}
  .nav-toggle{display:inline-flex;}
  .header-inner{min-height:64px;}
  .nav-search{display:none;}
  .grid-3{grid-template-columns:repeat(2,1fr);}
  .metrics-inner{grid-template-columns:repeat(2,1fr);gap:32px;padding:40px 0;}
  .page-hero .hero-grid{grid-template-columns:1fr;gap:32px;}
  .scene-layout{grid-template-columns:1fr;gap:32px;}
  .faq-layout{grid-template-columns:1fr;gap:32px;}
  .faq-aside{position:static;}
  .cta-inner{flex-direction:column;align-items:flex-start;padding:56px 0 48px;}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .footer-grid > div:last-child{grid-column:auto;}
}
@media (max-width:767px){
  :root{--section:56px;}
  .container{padding:0 18px;}
  body{font-size:16px;}
  h1{font-size:28px;}
  h2{font-size:24px;}
  h3{font-size:19px;}
  .grid-3,.grid-2{grid-template-columns:1fr;gap:20px;}
  .deliver-list{grid-template-columns:1fr;}
  .metrics-inner{grid-template-columns:1fr;gap:24px;}
  .metric .num{font-size:32px;}
  .page-hero{padding:28px 0 56px;}
  .tl-item{padding-left:48px;margin-bottom:36px;}
  .timeline::before{left:16px;}
  .tl-num{width:30px;height:30px;font-size:12px;}
  .tl-body{padding:22px 20px;}
  .faq-q{padding:18px 12px 18px 16px;font-size:17px;}
  .faq-a{padding:0 24px 20px 16px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .fsq-bottom{flex-direction:column;}
  .footer-bottom{flex-direction:column;gap:6px;}
  .btn{width:100%;}
  .hero-actions{flex-direction:column;}
  .cta-actions{width:100%;flex-direction:column;}
}
@media (max-width:480px){
  .logo-text{font-size:17px;}
  .card{padding:22px 18px;}
  .flow-panel{padding:22px 18px;}
}