/* roulang page: index */
:root{
  --ink:#23485F;
  --ink-2:#3E6B85;
  --ink-3:#E8EFF3;
  --celadon:#6E9C88;
  --amber:#C08A3E;
  --amber-d:#A9772F;
  --bg:#F7F8F6;
  --bg-tint:#F1F4F3;
  --card:#FFFFFF;
  --line:#E4E8E6;
  --text:#1C2226;
  --muted:#5C6670;
  --faint:#8A949C;
  --danger:#B4453A;
  --r-card:8px;
  --r-btn:6px;
  --r-tag:4px;
  --shadow:0 2px 8px rgba(35,72,95,.06);
  --shadow-h:0 6px 18px rgba(35,72,95,.10);
  --font:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Source Han Sans SC",sans-serif;
  --num:system-ui,"DIN Alternate","Roboto Mono",monospace;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--font);
  font-size:16px;line-height:1.75;color:var(--text);background:var(--bg);
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
}
img{display:block;max-width:100%;height:auto}
a{color:var(--ink-2);text-decoration:none;transition:color 180ms ease}
a:hover{color:var(--amber)}
button,input,select,textarea{font:inherit;color:inherit}
button{background:none;border:0;cursor:pointer}
ul,ol{list-style:none}
h1,h2,h3,h4{line-height:1.4;font-weight:600;color:var(--ink)}
h1{font-size:36px;letter-spacing:-.01em}
h2{font-size:27px}
h3{font-size:19px}
h4{font-size:16px}
p{color:var(--muted)}
.container{max-width:1200px;margin:0 auto;padding:0 24px}

/* ---------- 顶栏 ---------- */
.topbar{background:var(--ink);color:#fff;font-size:13px;height:36px;display:flex;align-items:center}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;width:100%}
.topbar-brand{opacity:.95;letter-spacing:.02em}
.topbar-links{display:flex;align-items:center;gap:22px}
.topbar-links span{opacity:.78}
.topbar-links a{color:#fff;opacity:.9}
.topbar-links a:hover{color:#fff;opacity:1;text-decoration:underline;text-underline-offset:3px}

/* ---------- 主导航 ---------- */
.mainnav{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:80}
.mainnav-inner{display:flex;align-items:center;height:64px;gap:28px}
.brand{display:flex;align-items:center;gap:10px;color:var(--ink);white-space:nowrap;flex:0 0 auto}
.brand:hover{color:var(--ink)}
.brand-text{font-size:17px;font-weight:600;letter-spacing:-.01em}
.brand svg{flex:0 0 auto}
.nav-menu{display:flex;align-items:center;gap:24px;margin-left:6px}
.nav-menu>li{position:relative}
.nav-menu>li>a{display:inline-block;padding:20px 0;font-size:15px;color:var(--text);font-weight:500}
.nav-menu>li>a:hover,.nav-menu>li>a.active{color:var(--ink);font-weight:600}
.nav-menu>li>a.active{box-shadow:inset 0 -2px 0 var(--amber)}
.submenu{position:absolute;top:100%;left:-18px;display:none;grid-template-columns:1fr 1fr;gap:2px 34px;
  min-width:400px;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--shadow-h);padding:18px 24px;z-index:90}
.nav-menu>li.has-sub:hover .submenu,.nav-menu>li.has-sub:focus-within .submenu{display:grid}
.submenu a{display:block;font-size:14px;line-height:1.9;color:var(--muted)}
.submenu a:hover{color:var(--ink)}
.submenu .submenu-title{font-size:13px;color:var(--faint);font-weight:600;margin-bottom:4px;grid-column:1/-1}
.nav-actions{margin-left:auto;display:flex;align-items:center;gap:12px}
.search-mini{display:flex;align-items:center;gap:6px;height:38px;padding:0 10px;background:var(--bg);
  border:1px solid var(--line);border-radius:var(--r-btn)}
.search-mini:focus-within{border-color:var(--ink);box-shadow:0 0 0 2px rgba(35,72,95,.10)}
.search-mini input{width:104px;border:0;background:transparent;outline:none;font-size:14px}
.search-mini input::placeholder{color:var(--faint)}
.search-mini button{display:flex;align-items:center;color:var(--ink-2)}
.nav-toggle{display:none;width:44px;height:44px;align-items:center;justify-content:center;flex-direction:column;gap:5px;margin-left:auto}
.nav-toggle span{display:block;width:20px;height:2px;background:var(--ink);border-radius:2px;transition:transform 180ms ease,opacity 180ms ease}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ---------- 抽屉 ---------- */
.drawer-mask{position:fixed;inset:0;background:rgba(28,34,38,.42);opacity:0;visibility:hidden;
  transition:opacity 180ms ease,visibility 180ms ease;z-index:95}
.drawer-mask.on{opacity:1;visibility:visible}
.drawer{position:fixed;top:0;right:0;bottom:0;width:82%;max-width:340px;background:#fff;z-index:100;
  transform:translateX(100%);transition:transform 220ms ease;display:flex;flex-direction:column}
.drawer.on{transform:translateX(0)}
.drawer-head{padding:18px 20px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between}
.drawer-head strong{color:var(--ink);font-size:16px}
.drawer-close{width:44px;height:44px;display:flex;align-items:center;justify-content:center;color:var(--ink)}
.drawer-body{padding:12px 20px 24px;overflow-y:auto;flex:1}
.drawer-body h4{font-size:13px;color:var(--faint);margin:18px 0 6px;letter-spacing:.06em}
.drawer-body a{display:block;font-size:15px;color:var(--text);padding:11px 0;border-bottom:1px dashed var(--line)}
.drawer-body a:hover{color:var(--ink)}
.drawer-foot{padding:16px 20px;border-top:1px solid var(--line)}
.drawer-foot .btn{width:100%}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:46px;padding:0 24px;
  border-radius:var(--r-btn);font-size:15px;font-weight:600;border:1px solid transparent;
  transition:background 180ms ease,color 180ms ease,transform 180ms ease,box-shadow 180ms ease;white-space:nowrap}
.btn-primary{background:var(--amber);color:#fff;box-shadow:0 2px 8px rgba(192,138,62,.24)}
.btn-primary:hover{background:var(--amber-d);color:#fff;transform:translateY(-1px)}
.btn-ghost{border-color:var(--ink);color:var(--ink);background:transparent}
.btn-ghost:hover{background:var(--ink-3);color:var(--ink)}
.btn-sm{height:38px;padding:0 16px;font-size:14px;border-radius:var(--r-btn)}
.btn:focus-visible,a:focus-visible,summary:focus-visible{outline:2px solid var(--ink);outline-offset:2px;border-radius:4px}
.textlink{color:var(--ink);text-decoration:underline;text-underline-offset:3px;font-weight:500}
.textlink:hover{color:var(--amber)}

/* ---------- 通用板块 ---------- */
.section{padding:88px 0}
.section--white{background:#fff}
.section--tint{background:var(--bg-tint)}
.sec-head{max-width:780px;margin-bottom:42px}
.eyebrow{display:inline-block;font-size:13px;font-weight:600;letter-spacing:.1em;color:var(--celadon);margin-bottom:12px}
.sec-head h2{font-size:27px}
.sec-head p{margin-top:14px;font-size:16px}
.tag{display:inline-block;background:var(--ink-3);color:var(--ink);font-size:14px;line-height:1.6;
  padding:3px 10px;border-radius:var(--r-tag)}
.tag--celadon{background:rgba(110,156,136,.14);color:#4E7A66}
.divider{height:1px;background:var(--line);border:0}

/* ---------- Hero ---------- */
.hero{background:linear-gradient(180deg,#FFFFFF 0%,var(--bg) 100%);padding:64px 0 72px;border-bottom:1px solid var(--line)}
.hero-grid{display:grid;grid-template-columns:1fr 1.05fr;gap:56px;align-items:center}
.hero h1{font-size:36px;letter-spacing:-.02em}
.hero-sub{margin-top:18px;font-size:16px;max-width:560px}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap;margin-top:28px}
.hero-trust{display:flex;flex-wrap:wrap;gap:12px 26px;margin-top:34px;padding-top:22px;border-top:1px solid var(--line)}
.hero-trust li{font-size:14px;color:var(--muted);display:flex;align-items:center;gap:8px}
.hero-trust li::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--celadon);flex:0 0 auto}
.hero-media{position:relative}
.hero-media img{width:100%;aspect-ratio:1.6/1;object-fit:cover;border-radius:var(--r-card);box-shadow:var(--shadow-h)}
.hero-badge{position:absolute;left:20px;bottom:20px;background:rgba(255,255,255,.95);border:1px solid var(--line);
  border-radius:var(--r-card);padding:12px 18px;box-shadow:var(--shadow)}
.hero-badge b{display:block;font-family:var(--num);font-size:20px;color:var(--amber);line-height:1.2}
.hero-badge span{font-size:13px;color:var(--muted)}

/* ---------- 痛点 ---------- */
.pain-grid{display:grid;grid-template-columns:1fr 1.15fr;gap:56px;align-items:center}
.pain-list li{display:flex;gap:14px;padding:16px 0;border-bottom:1px dashed var(--line);font-size:15.5px;color:var(--text)}
.pain-list li:last-child{border-bottom:0}
.pain-list .mark{flex:0 0 auto;width:22px;height:22px;border-radius:50%;background:var(--ink-3);color:var(--ink);
  font-size:13px;font-weight:700;display:flex;align-items:center;justify-content:center;margin-top:2px}
.pain-media img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-card);box-shadow:var(--shadow)}

/* ---------- 解决方案 ---------- */
.sol-grid{display:grid;grid-template-columns:1fr 1.1fr;gap:56px;align-items:center}
.sol-media img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-card);box-shadow:var(--shadow)}
.sol-list li{display:flex;gap:20px;padding:20px 0;border-bottom:1px solid var(--line)}
.sol-list li:last-child{border-bottom:0}
.sol-num{font-family:var(--num);font-size:24px;font-weight:700;color:var(--amber);line-height:1.2;flex:0 0 46px}
.sol-list h3{font-size:17px;margin-bottom:6px}
.sol-list p{font-size:15px}
.sol-more{margin-top:22px}

/* ---------- 步骤时间轴 ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;position:relative}
.steps::before{content:"";position:absolute;top:19px;left:8%;right:8%;height:2px;background:var(--line)}
.step{position:relative;padding-top:56px}
.step::before{content:"";position:absolute;top:12px;left:0;width:16px;height:16px;border-radius:50%;
  background:#fff;border:3px solid var(--celadon)}
.step h3{font-size:17px;margin-bottom:8px}
.step p{font-size:15px}

/* ---------- 环境图集 ---------- */
.gallery{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.gallery figure{margin:0;cursor:zoom-in;border-radius:var(--r-card);overflow:hidden;background:#fff;
  box-shadow:var(--shadow);transition:box-shadow 180ms ease,transform 180ms ease}
.gallery figure:hover{box-shadow:var(--shadow-h);transform:translateY(-2px)}
.gallery img{width:100%;aspect-ratio:4/3;object-fit:cover}
.gallery figcaption{font-size:14px;color:var(--muted);padding:12px 16px;border-top:1px solid var(--line)}

/* ---------- 灯箱 ---------- */
.lightbox{position:fixed;inset:0;background:rgba(28,34,38,.88);z-index:120;display:none;align-items:center;justify-content:center;padding:24px}
.lightbox.on{display:flex}
.lightbox img{max-width:92vw;max-height:82vh;border-radius:var(--r-card)}
.lightbox-close{position:absolute;top:20px;right:24px;width:44px;height:44px;color:#fff;font-size:30px;
  line-height:1;display:flex;align-items:center;justify-content:center;border:1px solid rgba(255,255,255,.4);border-radius:6px}
.lightbox-cap{position:absolute;bottom:26px;left:0;right:0;text-align:center;color:#fff;font-size:14px;opacity:.9;padding:0 24px}

/* ---------- 茶艺师横滑 ---------- */
.rail{display:flex;gap:24px;overflow-x:auto;padding:4px 4px 20px;scroll-snap-type:x mandatory;-webkit-overflow-scrolling:touch}
.rail::-webkit-scrollbar{height:8px}
.rail::-webkit-scrollbar-thumb{background:#D6DEDB;border-radius:4px}
.master{flex:0 0 calc((100% - 72px)/4);min-width:250px;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-card);box-shadow:var(--shadow);overflow:hidden;scroll-snap-align:start;
  transition:box-shadow 180ms ease,transform 180ms ease}
.master:hover{box-shadow:var(--shadow-h);transform:translateY(-2px)}
.master img{width:100%;aspect-ratio:1/1;object-fit:cover}
.master-body{padding:18px}
.master-body h3{font-size:17px;margin-bottom:8px}
.master-meta{font-size:14px;color:var(--muted);display:flex;flex-direction:column;gap:4px;margin-bottom:12px}
.master-meta b{color:var(--ink);font-weight:600}
.master-tags{display:flex;flex-wrap:wrap;gap:6px}

/* ---------- 数据 ---------- */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.stat{background:#fff;border:1px solid var(--line);border-top:2px solid var(--celadon);
  border-radius:var(--r-card);padding:26px 22px;box-shadow:var(--shadow)}
.stat b{display:block;font-family:var(--num);font-size:34px;font-weight:700;color:var(--ink);line-height:1.15;letter-spacing:-.02em}
.stat b i{font-style:normal;font-size:18px;color:var(--amber);margin-left:2px}
.stat span{display:block;margin-top:8px;font-size:14px;color:var(--muted)}

/* ---------- 证言 ---------- */
.quotes{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.quote{background:#fff;border-radius:var(--r-card);padding:28px 24px;box-shadow:var(--shadow);
  transition:box-shadow 180ms ease,transform 180ms ease;display:flex;flex-direction:column}
.quote:hover{box-shadow:var(--shadow-h);transform:translateY(-2px)}
.quote p{font-size:15.5px;color:var(--text);position:relative;padding-top:22px}
.quote p::before{content:"“";position:absolute;top:-4px;left:0;font-size:38px;line-height:1;color:var(--celadon);opacity:.5;font-family:Georgia,serif}
.quote-foot{margin-top:auto;padding-top:18px;border-top:1px solid var(--line);display:flex;align-items:center;
  justify-content:space-between;gap:12px;flex-wrap:wrap}
.quote-foot b{font-size:14px;color:var(--ink)}

/* ---------- 适用人群 ---------- */
.crowd{display:grid;grid-template-columns:repeat(2,1fr);gap:22px 40px}
.crowd-item{display:flex;gap:16px;padding:20px 0;border-bottom:1px solid var(--line)}
.crowd-item h3{font-size:17px;margin-bottom:6px}
.crowd-item p{font-size:15px}
.crowd-item .dot{flex:0 0 auto;width:10px;height:10px;border-radius:50%;background:var(--amber);margin-top:9px}

/* ---------- 栏目入口 ---------- */
.entries{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.entry{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;
  box-shadow:var(--shadow);display:flex;flex-direction:column;transition:box-shadow 180ms ease,transform 180ms ease}
.entry:hover{box-shadow:var(--shadow-h);transform:translateY(-2px)}
.entry img{width:100%;aspect-ratio:16/9;object-fit:cover}
.entry-body{padding:18px 20px 22px}
.entry-body h3{font-size:17px;margin-bottom:6px}
.entry-body p{font-size:14px;color:var(--muted)}

/* ---------- 区域标签云 ---------- */
.area-cloud{display:flex;flex-wrap:wrap;gap:12px}
.area-cloud span{display:inline-block;background:#fff;border:1px solid var(--line);border-radius:var(--r-tag);
  padding:8px 16px;font-size:14px;color:var(--ink);transition:border-color 180ms ease,background 180ms ease}
.area-cloud span:hover{border-color:var(--ink-2);background:var(--ink-3)}

/* ---------- FAQ ---------- */
.faq{max-width:880px}
.faq details{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);margin-bottom:12px;
  transition:background 180ms ease,border-color 180ms ease}
.faq details[open]{background:var(--bg);border-color:#D6DEDB}
.faq summary{list-style:none;cursor:pointer;padding:18px 52px 18px 22px;position:relative;font-size:16px;
  font-weight:600;color:var(--ink);display:block}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"";position:absolute;right:22px;top:50%;width:9px;height:9px;
  border-right:2px solid var(--ink-2);border-bottom:2px solid var(--ink-2);
  transform:translateY(-70%) rotate(45deg);transition:transform 180ms ease}
.faq details[open] summary::after{transform:translateY(-20%) rotate(-135deg)}
.faq .faq-a{padding:0 22px 20px;font-size:15px;color:var(--muted)}

/* ---------- 资讯 ---------- */
.news{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.news-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;
  box-shadow:var(--shadow);display:flex;flex-direction:column;transition:box-shadow 180ms ease,transform 180ms ease}
.news-card:hover{box-shadow:var(--shadow-h);transform:translateY(-2px)}
.news-card img{width:100%;aspect-ratio:16/10;object-fit:cover}
.news-body{padding:20px;display:flex;flex-direction:column;flex:1}
.news-body h3{font-size:17px;margin-bottom:10px}
.news-body p{font-size:14.5px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-meta{margin-top:16px;padding-top:14px;border-top:1px solid var(--line);display:flex;
  justify-content:space-between;align-items:center;font-size:13px;color:var(--faint)}

/* ---------- 承诺条 ---------- */
.pledges{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.pledge{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:22px 20px;
  display:flex;gap:14px;align-items:flex-start}
.pledge svg{flex:0 0 auto;color:var(--celadon)}
.pledge h3{font-size:16px;margin-bottom:4px}
.pledge p{font-size:14px}

/* ---------- 汇总条 ---------- */
.summary-bar{display:grid;grid-template-columns:1.1fr 1fr;gap:32px;align-items:center;
  border:1px solid var(--line);border-radius:var(--r-card);background:#fff;padding:32px 34px;box-shadow:var(--shadow)}
.summary-nums{display:flex;gap:40px;flex-wrap:wrap}
.summary-nums b{display:block;font-family:var(--num);font-size:28px;color:var(--ink);line-height:1.2}
.summary-nums span{font-size:13px;color:var(--muted)}
.summary-quote{border-left:3px solid var(--celadon);padding-left:20px;font-size:15px;color:var(--muted)}
.summary-quote b{display:block;color:var(--ink);font-size:14px;margin-top:8px;font-weight:600}

/* ---------- 底部 CTA ---------- */
.cta-band{background:var(--ink);color:#fff;padding:72px 0 64px}
.cta-inner{display:flex;justify-content:space-between;align-items:center;gap:40px;flex-wrap:wrap}
.cta-band h2{color:#fff;font-size:26px}
.cta-band p{color:rgba(255,255,255,.76);margin-top:12px;font-size:15.5px;max-width:620px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}
.cta-band .btn-ghost{border-color:rgba(255,255,255,.6);color:#fff}
.cta-band .btn-ghost:hover{background:rgba(255,255,255,.12);color:#fff}
.cta-note{margin-top:34px;padding-top:20px;border-top:1px solid rgba(255,255,255,.18);
  font-size:14px;color:rgba(255,255,255,.66)}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:#fff;padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:1.3fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-size:17px;font-weight:600;margin-bottom:16px}
.footer-brand:hover{color:#fff}
.site-footer h3{color:#fff;font-size:15px;margin-bottom:16px;letter-spacing:.02em}
.site-footer p{color:rgba(255,255,255,.7);font-size:14.5px}
.footer-links li{margin-bottom:10px}
.footer-links a{color:rgba(255,255,255,.78);font-size:14.5px}
.footer-links a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px}
.footer-contact li{font-size:14.5px;color:rgba(255,255,255,.78);margin-bottom:12px;display:flex;gap:10px}
.footer-contact li b{color:#fff;font-weight:600;flex:0 0 auto}
.footer-bottom{margin-top:56px;border-top:1px solid rgba(255,255,255,.16);padding:22px 0 28px;
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13.5px;color:rgba(255,255,255,.6)}
.footer-bottom a{color:rgba(255,255,255,.7)}
.footer-bottom a:hover{color:#fff}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .container{padding:0 22px}
  .hero-grid,.pain-grid,.sol-grid{gap:40px}
  .gallery,.entries,.news,.quotes{grid-template-columns:repeat(3,1fr)}
  .master{flex:0 0 calc((100% - 48px)/3)}
}
@media (max-width:991px){
  h1{font-size:31px}
  .hero h1{font-size:31px}
  .sec-head h2,.cta-band h2{font-size:24px}
  .section{padding:64px 0}
  .hero{padding:52px 0 60px}
  .nav-menu,.search-mini{display:none}
  .nav-toggle{display:flex}
  .mainnav-inner{height:56px;gap:16px}
  .topbar-links span{display:none}
  .hero-grid,.pain-grid,.sol-grid,.summary-bar{grid-template-columns:1fr;gap:32px}
  .steps{grid-template-columns:repeat(2,1fr);gap:18px 24px}
  .steps::before{display:none}
  .gallery,.entries,.news,.quotes{grid-template-columns:repeat(2,1fr)}
  .stats{grid-template-columns:repeat(2,1fr)}
  .pledges{grid-template-columns:repeat(2,1fr)}
  .crowd{grid-template-columns:1fr;gap:0}
  .footer-grid{grid-template-columns:repeat(2,1fr);gap:32px}
  .master{flex:0 0 calc((100% - 24px)/2);min-width:230px}
}
@media (max-width:767px){
  .section{padding:48px 0}
  .container{padding:0 16px}
  .hero{padding:40px 0 48px}
  .hero-cta .btn{width:100%}
  .gallery,.entries,.news,.quotes,.stats,.pledges{grid-template-columns:1fr}
  .master{flex:0 0 78%;min-width:0}
  .footer-grid{grid-template-columns:1fr}
  .summary-nums{gap:24px}
  .summary-bar{padding:24px 20px}
  .cta-band{padding:52px 0 46px}
  .cta-actions .btn{width:100%}
  .topbar-brand{font-size:12.5px}
}
@media (max-width:480px){
  body{font-size:15px;line-height:1.7}
  h1,.hero h1{font-size:26px}
  .sec-head h2{font-size:21px}
  .stat b{font-size:28px}
  .stats{grid-template-columns:repeat(2,1fr);gap:14px}
  .summary-nums{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
}

/* roulang page: category1 */
:root{
 --ink:#23485F;
 --ink-2:#3E6B85;
 --ink-3:#E8EFF3;
 --celadon:#6E9C88;
 --amber:#C08A3E;
 --amber-d:#A9772F;
 --bg:#F7F8F6;
 --bg-tint:#F1F4F3;
 --card:#FFFFFF;
 --line:#E4E8E6;
 --text:#1C2226;
 --muted:#5C6670;
 --faint:#8A949C;
 --danger:#B4453A;
 --r-card:8px;
 --r-btn:6px;
 --r-tag:4px;
 --shadow:0 2px 8px rgba(35,72,95,.06);
 --shadow-h:0 6px 18px rgba(35,72,95,.10);
 --font:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Source Han Sans SC",sans-serif;
 --num:system-ui,"DIN Alternate","Roboto Mono",monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body,h1,h2,h3,h4,p,ul,ol,li,figure,form{margin:0;padding:0}
ul,ol{list-style:none}
body{
 font-family:var(--font);
 font-size:16px;line-height:1.75;color:var(--text);background:var(--bg);
 -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
}
img{display:block;max-width:100%;height:auto}
a{color:var(--ink-2);text-decoration:none;transition:color 180ms ease}
a:hover{color:var(--amber)}
button,input,select,textarea{font:inherit;color:inherit}
button{background:none;border:0;cursor:pointer}
time{font-family:var(--num);letter-spacing:.02em}
h1{font-size:32px;font-weight:600;line-height:1.35}
h2{font-size:26px;font-weight:600;line-height:1.4;color:var(--ink)}
h3{font-size:18px;font-weight:600;line-height:1.5}
h4{font-size:16px;font-weight:600}
.container{max-width:1200px;margin:0 auto;padding:0 24px}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}
/* ---------- 顶栏 ---------- */
.topbar{background:var(--ink);color:#fff;font-size:13px;height:36px;display:flex;align-items:center}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;width:100%}
.topbar-brand{opacity:.95;letter-spacing:.02em}
.topbar-links{display:flex;align-items:center;gap:22px}
.topbar-links span{opacity:.78}
.topbar-links a{color:#fff;opacity:.9}
.topbar-links a:hover{color:#fff;opacity:1;text-decoration:underline;text-underline-offset:3px}
/* ---------- 主导航 ---------- */
.mainnav{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:80}
.mainnav-inner{display:flex;align-items:center;height:64px;gap:28px}
.brand{display:flex;align-items:center;gap:10px;color:var(--ink);white-space:nowrap;flex:0 0 auto}
.brand:hover{color:var(--ink)}
.brand-text{font-size:17px;font-weight:600;letter-spacing:-.01em}
.brand svg{flex:0 0 auto}
.nav-menu{display:flex;align-items:center;gap:24px;margin-left:6px}
.nav-menu>li{position:relative}
.nav-menu>li>a{display:inline-block;padding:20px 0;font-size:15px;color:var(--text);font-weight:500}
.nav-menu>li>a:hover,.nav-menu>li>a.active{color:var(--ink);font-weight:600}
.nav-menu>li>a.active{box-shadow:inset 0 -2px 0 var(--amber)}
.submenu{position:absolute;top:100%;left:-18px;display:none;grid-template-columns:1fr 1fr;gap:2px 34px;
 min-width:400px;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
 box-shadow:var(--shadow-h);padding:18px 24px;z-index:90}
.nav-menu>li.has-sub:hover .submenu,.nav-menu>li.has-sub:focus-within .submenu{display:grid}
.submenu a{display:block;font-size:14px;line-height:1.9;color:var(--muted)}
.submenu a:hover{color:var(--ink)}
.submenu .submenu-title{font-size:13px;color:var(--faint);font-weight:600;margin-bottom:4px;grid-column:1/-1}
.nav-actions{margin-left:auto;display:flex;align-items:center;gap:12px}
.search-mini{display:flex;align-items:center;gap:6px;height:38px;padding:0 10px;background:var(--bg);
 border:1px solid var(--line);border-radius:var(--r-btn)}
.search-mini:focus-within{border-color:var(--ink);box-shadow:0 0 0 2px rgba(35,72,95,.10)}
.search-mini input{width:104px;border:0;background:transparent;outline:none;font-size:14px}
.search-mini input::placeholder{color:var(--faint)}
.search-mini button{display:flex;align-items:center;color:var(--ink-2)}
.nav-toggle{display:none;width:44px;height:44px;align-items:center;justify-content:center;flex-direction:column;gap:5px;margin-left:auto}
.nav-toggle span{display:block;width:20px;height:2px;background:var(--ink);border-radius:2px;transition:transform 180ms ease,opacity 180ms ease}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
/* ---------- 抽屉 ---------- */
.drawer-mask{position:fixed;inset:0;background:rgba(28,34,38,.42);opacity:0;visibility:hidden;
 transition:opacity 180ms ease,visibility 180ms ease;z-index:95}
.drawer-mask.on{opacity:1;visibility:visible}
.drawer{position:fixed;top:0;right:0;bottom:0;width:82%;max-width:340px;background:#fff;z-index:100;
 transform:translateX(100%);transition:transform 220ms ease;display:flex;flex-direction:column}
.drawer.on{transform:translateX(0)}
.drawer-head{padding:18px 20px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between}
.drawer-head strong{color:var(--ink);font-size:16px}
.drawer-close{width:44px;height:44px;display:flex;align-items:center;justify-content:center;color:var(--ink)}
.drawer-body{padding:12px 20px 24px;overflow-y:auto;flex:1}
.drawer-body h4{font-size:13px;color:var(--faint);margin:18px 0 6px;letter-spacing:.06em}
.drawer-body a{display:block;font-size:15px;color:var(--text);padding:11px 0;border-bottom:1px dashed var(--line)}
.drawer-body a:hover{color:var(--ink)}
.drawer-foot{padding:16px 20px;border-top:1px solid var(--line)}
.drawer-foot .btn{width:100%}
/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:46px;padding:0 24px;
 border-radius:var(--r-btn);font-size:15px;font-weight:600;border:1px solid transparent;
 transition:background 180ms ease,color 180ms ease,transform 180ms ease,box-shadow 180ms ease;white-space:nowrap}
.btn-primary{background:var(--amber);color:#fff;box-shadow:0 2px 8px rgba(192,138,62,.24)}
.btn-primary:hover{background:var(--amber-d);color:#fff;transform:translateY(-1px)}
.btn-ghost{border-color:var(--ink);color:var(--ink);background:transparent}
.btn-ghost:hover{background:var(--ink-3);color:var(--ink)}
.btn-light{background:#fff;color:var(--ink);border-color:#fff}
.btn-light:hover{background:var(--ink-3);color:var(--ink);border-color:var(--ink-3)}
.btn-outline-light{border-color:rgba(255,255,255,.62);color:#fff}
.btn-outline-light:hover{background:rgba(255,255,255,.12);color:#fff;border-color:#fff}
.btn-sm{height:38px;padding:0 16px;font-size:14px;border-radius:var(--r-btn)}
.btn:focus-visible,a:focus-visible,summary:focus-visible,.filter-tag:focus-visible{outline:2px solid var(--ink);outline-offset:2px;border-radius:4px}
/* ---------- 通用板块 ---------- */
.section{padding:80px 0}
.section--white{background:#fff}
.section--tint{background:var(--bg-tint)}
.section-head{max-width:760px;margin-bottom:36px}
.section-head h2{margin-bottom:12px}
.section-head p{color:var(--muted);font-size:15px}
.section-head--row{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;max-width:none}
.eyebrow{display:inline-block;font-size:13px;font-weight:600;letter-spacing:.1em;color:var(--celadon);margin-bottom:10px}
.tag{display:inline-block;background:var(--ink-3);color:var(--ink);font-size:13px;line-height:1.6;
 padding:3px 10px;border-radius:var(--r-tag)}
.tag--celadon{background:rgba(110,156,136,.14);color:#4C7A66}
.tag--amber{background:rgba(192,138,62,.14);color:var(--amber-d)}
.textlink{color:var(--ink);text-decoration:underline;text-underline-offset:3px;font-weight:600}
.textlink:hover{color:var(--amber)}
/* ---------- 栏目标题条 ---------- */
.cat-hero{background:var(--bg-tint);border-bottom:1px solid var(--line);padding:24px 0 26px}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--faint);margin-bottom:12px}
.breadcrumb a{color:var(--ink-2)}
.breadcrumb .sep{color:#B9C2C7}
.cat-hero-inner{display:flex;align-items:flex-end;justify-content:space-between;gap:40px;flex-wrap:wrap}
.cat-hero h1{font-size:30px;color:var(--ink);letter-spacing:-.01em}
.cat-hero .lead{margin-top:8px;font-size:15px;color:var(--muted)}
.cat-hero-stats{display:flex;gap:30px}
.cat-hero-stats b{display:block;font-family:var(--num);font-size:22px;font-weight:600;color:var(--ink);line-height:1.3}
.cat-hero-stats span{font-size:12px;color:var(--faint)}
/* ---------- 筛选条 ---------- */
.filter-bar{background:#fff;border-bottom:1px solid var(--line);padding:14px 0 16px}
.filter-row{display:flex;align-items:flex-start;gap:14px;padding:6px 0;border-bottom:1px dashed var(--line)}
.filter-row:last-child{border-bottom:0}
.filter-label{flex:0 0 84px;font-size:13px;color:var(--faint);line-height:30px}
.filter-tags{display:flex;flex-wrap:wrap;gap:8px}
.filter-tag{height:30px;padding:0 13px;font-size:13px;color:var(--muted);background:var(--bg);
 border:1px solid var(--line);border-radius:var(--r-tag);transition:background 180ms ease,color 180ms ease,border-color 180ms ease}
.filter-tag:hover{border-color:var(--ink);color:var(--ink)}
.filter-tag.is-on{background:var(--ink);border-color:var(--ink);color:#fff}
.filter-note{font-size:13px;color:var(--faint);padding-top:10px}
/* ---------- 列表卡片 ---------- */
.post-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.post-card{display:flex;flex-direction:column;background:var(--card);border:1px solid var(--line);
 border-radius:var(--r-card);overflow:hidden;box-shadow:var(--shadow);
 transition:box-shadow 180ms ease,transform 180ms ease,border-color 180ms ease}
.post-card:hover{box-shadow:var(--shadow-h);transform:translateY(-2px);border-color:#D5DCD9}
.post-thumb{display:block;aspect-ratio:16/10;overflow:hidden;background:#EDEFEE}
.post-thumb img{width:100%;height:100%;object-fit:cover;transition:transform 320ms ease}
.post-card:hover .post-thumb img{transform:scale(1.03)}
.post-body{display:flex;flex-direction:column;gap:10px;padding:20px;flex:1}
.post-body h3{font-size:18px}
.post-body h3 a{color:var(--text)}
.post-body h3 a:hover{color:var(--ink)}
.post-excerpt{font-size:14px;color:var(--muted);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-tags{display:flex;flex-wrap:wrap;gap:6px}
.post-meta{margin-top:auto;display:flex;align-items:center;justify-content:space-between;
 padding-top:12px;border-top:1px solid var(--line);font-size:13px;color:var(--faint)}
.post-more{font-size:13px;font-weight:600;color:var(--ink-2)}
.post-more:hover{color:var(--amber)}
.filter-empty{margin-top:28px;padding:36px 24px;text-align:center;background:#fff;border:1px dashed var(--line);
 border-radius:var(--r-card);color:var(--muted)}
.filter-empty p{margin-bottom:14px}
.list-more{display:flex;justify-content:center;margin-top:40px}
/* ---------- 编辑精选 ---------- */
.pick-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.pick-card{display:flex;gap:16px;align-items:flex-start;background:#fff;border:1px solid var(--line);
 border-radius:var(--r-card);padding:14px;box-shadow:var(--shadow);transition:box-shadow 180ms ease,transform 180ms ease}
.pick-card:hover{box-shadow:var(--shadow-h);transform:translateY(-2px)}
.pick-card img{width:104px;height:78px;object-fit:cover;border-radius:6px;flex:0 0 auto}
.pick-body{display:flex;flex-direction:column;gap:6px}
.pick-body h3{font-size:16px;line-height:1.5}
.pick-body h3 a{color:var(--text)}
.pick-body h3 a:hover{color:var(--ink)}
.pick-body p{font-size:13px;color:var(--muted)}
/* ---------- 指标条 ---------- */
.stat-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.stat-box{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:24px 20px}
.stat-box b{display:block;font-family:var(--num);font-size:32px;font-weight:600;color:var(--ink);line-height:1.2}
.stat-box span{display:block;margin-top:8px;font-size:13px;color:var(--muted)}
.stat-box em{display:block;margin-top:2px;font-size:12px;font-style:normal;color:var(--faint)}
/* ---------- FAQ ---------- */
.faq-wrap{max-width:900px;margin:0 auto}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);margin-bottom:12px;overflow:hidden}
.faq-item summary{position:relative;list-style:none;cursor:pointer;padding:18px 52px 18px 22px;
 font-size:16px;font-weight:600;color:var(--ink)}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"";position:absolute;right:24px;top:50%;width:9px;height:9px;
 border-right:2px solid var(--ink-2);border-bottom:2px solid var(--ink-2);
 transform:translateY(-70%) rotate(45deg);transition:transform 180ms ease}
.faq-item[open]{background:var(--bg)}
.faq-item[open] summary::after{transform:translateY(-30%) rotate(-135deg)}
.faq-item p{padding:0 52px 20px 22px;font-size:15px;color:var(--muted)}
/* ---------- 底部 CTA ---------- */
.cta-band{position:relative;border-radius:var(--r-card);overflow:hidden;padding:44px 40px;
 background-image:linear-gradient(90deg,rgba(35,72,95,.95),rgba(35,72,95,.76)),url('/assets/images/080206e4f27c7920.jpg');
 background-size:cover;background-position:center;color:#fff}
.cta-band h2{color:#fff;font-size:26px;margin-bottom:10px}
.cta-band p{color:rgba(255,255,255,.86);font-size:15px;max-width:640px}
.cta-actions{display:flex;gap:14px;margin-top:24px;flex-wrap:wrap}
.cta-tip{margin-top:22px;padding-top:16px;border-top:1px solid rgba(255,255,255,.22);
 font-size:13px;color:rgba(255,255,255,.78)}
.topic-cloud{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.topic-cloud a{display:inline-block;padding:6px 14px;font-size:14px;color:var(--muted);
 background:#fff;border:1px solid var(--line);border-radius:var(--r-tag);
 transition:background 180ms ease,color 180ms ease,border-color 180ms ease}
.topic-cloud a:hover{background:var(--ink-3);border-color:var(--ink);color:var(--ink)}
/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:#fff;padding:60px 0 0;font-size:14px}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1.3fr;gap:40px;padding-bottom:44px}
.footer-brand{display:flex;align-items:center;gap:9px;color:#fff;font-size:16px;font-weight:600}
.footer-brand:hover{color:#fff}
.site-footer .footer-grid p{color:rgba(255,255,255,.72);margin-top:14px;font-size:14px;line-height:1.85}
.site-footer h3{font-size:15px;color:#fff;margin-bottom:16px;font-weight:600}
.footer-links li{margin-bottom:9px}
.footer-links a{color:rgba(255,255,255,.74);font-size:14px}
.footer-links a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px}
.footer-contact li{display:flex;justify-content:space-between;gap:14px;padding:9px 0;
 border-bottom:1px dashed rgba(255,255,255,.16);font-size:14px}
.footer-contact b{color:rgba(255,255,255,.62);font-weight:400;flex:0 0 auto}
.footer-contact span{color:#fff;text-align:right}
.footer-bottom{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
 padding:18px 0;border-top:1px solid rgba(255,255,255,.16);
 font-size:13px;color:rgba(255,255,255,.66)}
.footer-bottom a{color:rgba(255,255,255,.86)}
.footer-bottom a:hover{color:#fff}
/* ---------- 响应式 ---------- */
@media (max-width:1199px){
 .container{padding:0 20px}
 .nav-menu{gap:18px}
 .nav-menu>li>a{font-size:14px}
 .search-mini input{width:88px}
 .footer-grid{grid-template-columns:1.6fr 1fr 1fr;gap:32px}
}
@media (max-width:991px){
 .nav-menu,.nav-actions{display:none}
 .nav-toggle{display:flex}
 .mainnav-inner{height:56px}
 .section{padding:56px 0}
 .cat-hero h1{font-size:24px}
 .cat-hero-stats{gap:22px}
 .post-grid{grid-template-columns:repeat(2,1fr)}
 .pick-grid{grid-template-columns:1fr;gap:14px}
 .stat-strip{grid-template-columns:repeat(2,1fr)}
 .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
 .topbar-brand{display:none}
 .topbar-links{width:100%;justify-content:space-between;gap:10px}
}
@media (max-width:767px){
 body{font-size:15px;line-height:1.7}
 .container{padding:0 16px}
 h2{font-size:21px}
 .section{padding:44px 0}
 .section-head{margin-bottom:26px}
 .section-head--row{display:block}
 .cat-hero{padding:20px 0 22px}
 .cat-hero-inner{display:block}
 .cat-hero h1{font-size:22px}
 .cat-hero-stats{margin-top:16px;gap:18px;flex-wrap:wrap}
 .cat-hero-stats b{font-size:19px}
 .filter-row{display:block}
 .filter-label{flex:none;line-height:1.6;margin-bottom:6px}
 .post-grid{grid-template-columns:1fr;gap:18px}
 .pick-card img{width:88px;height:66px}
 .stat-strip{grid-template-columns:1fr 1fr;gap:12px}
 .stat-box{padding:18px 16px}
 .stat-box b{font-size:26px}
 .footer-grid{grid-template-columns:1fr;gap:26px}
 .cta-band{padding:30px 22px}
 .cta-band h2{font-size:21px}
 .cta-actions .btn{width:100%}
 .faq-item summary{padding:15px 44px 15px 16px;font-size:15px}
 .faq-item p{padding:0 44px 16px 16px}
 .footer-bottom{flex-direction:column;gap:6px}
}
@media (max-width:480px){
 .cat-hero h1{font-size:20px}
 .stat-strip{grid-template-columns:1fr 1fr}
 .stat-box b{font-size:23px}
 .footer-contact li{font-size:13px}
}