/* roulang page: index */
/* ===== Design Tokens ===== */
:root{
  --primary:#1a3c34;
  --primary-light:#2a5c50;
  --primary-lighter:#e8f0ec;
  --accent:#c9a86a;
  --accent-dark:#b08d4f;
  --accent-light:#f5ecdb;
  --bg:#f6f4ef;
  --bg-alt:#ffffff;
  --text:#1f2933;
  --text-soft:#5f6b7a;
  --text-light:#8a94a6;
  --border:#e4ded3;
  --radius:14px;
  --radius-sm:9px;
  --radius-lg:22px;
  --shadow-sm:0 2px 8px rgba(0,0,0,.05);
  --shadow:0 6px 24px rgba(0,0,0,.07);
  --shadow-lg:0 14px 48px rgba(0,0,0,.09);
  --transition:all .3s ease;
  --container-max:1240px;
  --font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
}
/* ===== Reset & Base ===== */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:var(--font-family);font-size:16px;line-height:1.75;color:var(--text);background:var(--bg);-webkit-font-smoothing:antialiased}
a{text-decoration:none;color:inherit;transition:var(--transition)}
img{max-width:100%;display:block;height:auto}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;border:none;outline:none}
ul,ol{list-style:none}
section{scroll-margin-top:90px}
.container{width:100%;max-width:var(--container-max);margin:0 auto;padding:0 24px}
.section{padding:80px 0}
.section-head{margin-bottom:48px}
.section-head .tag{display:inline-flex;align-items:center;gap:8px;background:var(--primary-lighter);color:var(--primary);font-size:13px;font-weight:600;padding:6px 14px;border-radius:30px;margin-bottom:16px}
.section-head h2{font-size:clamp(26px,3.5vw,36px);font-weight:800;letter-spacing:-0.02em;line-height:1.25;color:var(--primary);margin-bottom:12px}
.section-head p{font-size:15px;color:var(--text-soft);max-width:560px;line-height:1.8}
.section-head.center{text-align:center}
.section-head.center p{margin-left:auto;margin-right:auto}
/* ===== Buttons ===== */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;padding:13px 30px;border-radius:50px;font-size:15px;font-weight:600;line-height:1.4;cursor:pointer;transition:var(--transition);border:2px solid transparent;text-align:center}
.btn i{font-size:15px}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 4px 14px rgba(26,60,52,.25)}
.btn-primary:hover{background:var(--primary-light);transform:translateY(-2px);box-shadow:0 8px 24px rgba(26,60,52,.3)}
.btn-primary:active{transform:translateY(0);box-shadow:0 2px 8px rgba(26,60,52,.2)}
.btn-outline{background:transparent;border-color:var(--primary);color:var(--primary)}
.btn-outline:hover{background:var(--primary);color:#fff;transform:translateY(-2px)}
.btn-outline:active{transform:translateY(0)}
.btn-accent{background:var(--accent);color:#2b1d0a;box-shadow:0 4px 14px rgba(201,168,106,.3)}
.btn-accent:hover{background:var(--accent-dark);color:#fff;transform:translateY(-2px)}
.btn-outline-light{background:transparent;border-color:rgba(255,255,255,.65);color:#fff}
.btn-outline-light:hover{background:rgba(255,255,255,.15)}
.btn:focus-visible,.btn:focus{outline:3px solid rgba(26,60,52,.3);outline-offset:2px}
/* ===== Header / Nav ===== */
.site-header{position:sticky;top:0;z-index:200;background:rgba(255,255,255,.92);backdrop-filter:blur(14px);border-bottom:1px solid var(--border)}
.header-wrap{display:flex;align-items:center;gap:20px;height:70px;position:relative}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0;font-size:19px;font-weight:800;color:var(--primary);letter-spacing:-0.01em}
.logo i{color:var(--accent);font-size:22px}
.logo span{white-space:nowrap}
.header-search{flex:1;max-width:520px;margin:0 auto;position:relative}
.header-search form{display:flex;align-items:center;background:var(--bg);border:1px solid var(--border);border-radius:50px;padding:0 6px 0 18px;height:42px;transition:var(--transition)}
.header-search form:focus-within{border-color:var(--primary);background:#fff;box-shadow:0 0 0 4px rgba(26,60,52,.08)}
.header-search input{flex:1;background:transparent;border:none;font-size:14px;color:var(--text);height:100%;padding:0 8px;min-width:0}
.header-search input::placeholder{color:var(--text-light)}
.header-search button{width:34px;height:34px;border-radius:50%;background:var(--primary);color:#fff;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:var(--transition)}
.header-search button:hover{background:var(--primary-light)}
.header-nav{display:flex;align-items:center;gap:8px;flex-shrink:0}
.header-nav a{display:inline-flex;align-items:center;gap:6px;padding:10px 18px;border-radius:30px;font-size:14px;font-weight:600;color:var(--text-soft);transition:var(--transition)}
.header-nav a.active{background:var(--primary);color:#fff}
.header-nav a:hover:not(.active){background:var(--primary-lighter);color:var(--primary)}
/* ===== Hero ===== */
.hero{position:relative;background:linear-gradient(170deg,#f0ece3 0%,#f9f7f2 55%,#eef2ed 100%);padding:90px 0 60px;overflow:hidden}
.hero::before{content:'';position:absolute;top:-180px;right:-120px;width:460px;height:460px;border-radius:50%;background:radial-gradient(circle,rgba(201,168,106,.18),transparent 65%);z-index:0}
.hero::after{content:'';position:absolute;bottom:-100px;left:-80px;width:340px;height:340px;border-radius:50%;background:radial-gradient(circle,rgba(26,60,52,.1),transparent 60%);z-index:0}
.hero-inner{position:relative;z-index:1;display:flex;flex-direction:column;gap:42px}
.hero-badge{display:inline-flex;align-items:center;gap:8px;width:fit-content;background:#fff;border:1px solid var(--border);border-radius:50px;padding:8px 18px;font-size:13px;font-weight:600;color:var(--primary);box-shadow:var(--shadow-sm)}
.hero-badge i{color:var(--accent)}
.hero h1{font-size:clamp(26px,4vw,40px);line-height:1.32;font-weight:800;letter-spacing:-0.02em;color:var(--text);max-width:760px;margin:20px 0 16px}
.hero-desc{font-size:16px;line-height:1.9;color:var(--text-soft);max-width:660px;margin-bottom:28px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:40px}
.hero-icons{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.icon-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:22px 18px;text-align:center;transition:var(--transition);box-shadow:var(--shadow-sm)}
.icon-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:rgba(26,60,52,.25)}
.icon-card i{font-size:28px;color:var(--accent);margin-bottom:10px;display:block}
.icon-card strong{display:block;font-size:15px;font-weight:700;color:var(--primary);margin-bottom:6px}
.icon-card span{font-size:13px;color:var(--text-light);line-height:1.6;display:block}
.hero-status{display:flex;justify-content:space-between;align-items:center;background:#fff;border:1px solid var(--border);border-radius:var(--radius-lg);padding:20px 32px;box-shadow:var(--shadow-sm)}
.status-item{display:flex;flex-direction:column;align-items:center;text-align:center;flex:1}
.status-item + .status-item{border-left:1px solid var(--border);padding-left:16px}
.status-num{font-size:28px;font-weight:800;color:var(--primary);line-height:1.2}
.status-label{font-size:13px;color:var(--text-soft);margin-top:4px}
/* ===== Directory ===== */
.directory-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.directory-card{position:relative;background:var(--bg-alt);border:1px solid var(--border);border-radius:var(--radius);padding:30px 26px;display:flex;gap:18px;transition:var(--transition);overflow:hidden}
.directory-card::after{content:'';position:absolute;right:-30px;bottom:-30px;width:100px;height:100px;border-radius:50%;background:var(--primary-lighter);opacity:.4;transition:var(--transition)}
.directory-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:rgba(26,60,52,.2)}
.directory-card:hover::after{transform:scale(1.15);opacity:.6}
.dir-icon{flex-shrink:0;width:54px;height:54px;border-radius:14px;background:var(--primary-lighter);display:flex;align-items:center;justify-content:center;font-size:22px;color:var(--primary)}
.directory-card:nth-child(2) .dir-icon{background:var(--accent-light);color:var(--accent-dark)}
.directory-card:nth-child(3) .dir-icon{background:#e8f4f0;color:#2e8b7a}
.directory-card:nth-child(4) .dir-icon{background:#f1ebe3;color:#9c7a4a}
.directory-card:nth-child(5) .dir-icon{background:#e9eef6;color:#3f6fae}
.directory-card:nth-child(6) .dir-icon{background:#f4e8ea;color:#b0565f}
.dir-content h3{font-size:17px;font-weight:700;color:var(--text);margin-bottom:6px}
.dir-content p{font-size:14px;color:var(--text-soft);line-height:1.7;margin-bottom:10px}
.dir-content a{font-size:13px;font-weight:600;color:var(--primary);display:inline-flex;align-items:center;gap:4px}
.dir-content a i{transition:var(--transition)}
.dir-content a:hover i{transform:translateX(4px)}
/* ===== Highlights / Stats ===== */
.highlights{background:var(--bg-alt);border-top:1px solid var(--border);border-bottom:1px solid var(--border)}
.hl-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.hl-card{text-align:center;padding:10px 6px}
.hl-num{font-size:clamp(36px,4vw,52px);font-weight:800;color:var(--primary);line-height:1.1;display:block}
.hl-num em{font-style:normal;color:var(--accent)}
.hl-title{font-size:15px;font-weight:600;color:var(--text-soft);margin-top:8px}
.hl-desc{font-size:13px;color:var(--text-light);margin-top:6px;line-height:1.6;max-width:200px;margin-left:auto;margin-right:auto}
/* ===== Recommend ===== */
.reco-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.reco-card{background:var(--bg-alt);border:1px solid var(--border);border-radius:var(--radius-lg);overflow:hidden;transition:var(--transition);display:flex;flex-direction:column}
.reco-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg)}
.reco-cover{position:relative;height:200px;overflow:hidden}
.reco-cover img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.reco-card:hover .reco-cover img{transform:scale(1.05)}
.reco-cover .reco-tag{position:absolute;top:14px;left:14px;background:rgba(26,60,52,.85);color:#fff;font-size:12px;font-weight:600;padding:5px 14px;border-radius:30px;backdrop-filter:blur(4px)}
.reco-body{padding:22px 22px 24px;display:flex;flex-direction:column;flex:1}
.reco-body h3{font-size:17px;font-weight:700;color:var(--text);line-height:1.5;margin-bottom:8px}
.reco-body p{font-size:14px;color:var(--text-soft);line-height:1.7;flex:1;margin-bottom:16px}
.reco-meta{display:flex;align-items:center;gap:14px;font-size:13px;color:var(--text-light)}
.reco-meta .dot{width:4px;height:4px;border-radius:50%;background:var(--text-light);display:inline-block}
.reco-link{font-size:14px;font-weight:600;color:var(--primary);display:inline-flex;align-items:center;gap:6px}
.reco-link i{transition:var(--transition)}
.reco-link:hover i{transform:translateX(4px)}
/* ===== News ===== */
.news-wrap{display:grid;grid-template-columns:1fr 340px;gap:40px;align-items:start}
.news-list .news-item{display:flex;align-items:flex-start;justify-content:space-between;gap:20px;padding:20px 0;border-bottom:1px solid var(--border);transition:var(--transition)}
.news-item:hover .news-title{color:var(--primary)}
.news-group{flex:1}
.news-tags{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:6px}
.news-tags span{font-size:12px;background:var(--primary-lighter);color:var(--primary);padding:3px 10px;border-radius:20px;font-weight:500}
.news-title{font-size:16px;font-weight:600;color:var(--text);line-height:1.6;transition:var(--transition)}
.news-item time{font-size:13px;color:var(--text-light);white-space:nowrap;flex-shrink:0;margin-top:4px}
.news-side{background:var(--bg-alt);border:1px solid var(--border);border-radius:var(--radius);padding:26px 22px}
.side-block + .side-block{margin-top:30px}
.side-title{font-size:15px;font-weight:700;color:var(--primary);margin-bottom:14px;display:flex;align-items:center;gap:8px}
.side-title i{color:var(--accent)}
.tag-cloud{display:flex;flex-wrap:wrap;gap:10px}
.tag-cloud a{font-size:13px;background:var(--bg);border:1px solid var(--border);color:var(--text-soft);padding:6px 16px;border-radius:30px;transition:var(--transition)}
.tag-cloud a:hover{background:var(--primary);color:#fff;border-color:var(--primary);transform:translateY(-2px)}
.side-list li{display:flex;align-items:center;gap:10px;padding:11px 0;border-bottom:1px dashed var(--border);font-size:14px;color:var(--text-soft);transition:var(--transition)}
.side-list li:last-child{border-bottom:none}
.side-list li:hover{color:var(--primary);padding-left:6px}
.side-list i{font-size:6px;color:var(--accent)}
/* ===== Share / Guide ===== */
.share-section{background:linear-gradient(135deg,#1a3c34 0%,#214a40 100%);color:#fff;padding:70px 0}
.share-grid{display:grid;grid-template-columns:1fr 1fr;gap:50px;align-items:center}
.share-left h2{font-size:28px;font-weight:800;line-height:1.3;margin-bottom:16px}
.share-left p{font-size:15px;line-height:1.9;color:rgba(255,255,255,.82);margin-bottom:26px}
.share-icons{display:flex;gap:12px;flex-wrap:wrap}
.share-icons .share-btn{display:inline-flex;align-items:center;gap:10px;padding:12px 24px;border-radius:50px;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.2);color:#fff;font-size:14px;font-weight:500;transition:var(--transition);cursor:pointer}
.share-icons .share-btn:hover{background:rgba(255,255,255,.25);transform:translateY(-2px)}
.share-steps{display:flex;flex-direction:column;gap:20px}
.step-item{display:flex;gap:16px;align-items:flex-start;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.14);border-radius:var(--radius);padding:22px;transition:var(--transition)}
.step-item:hover{background:rgba(255,255,255,.14);transform:translateX(4px)}
.step-num{flex-shrink:0;width:44px;height:44px;border-radius:50%;background:var(--accent);color:#2b1d0a;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:17px}
.step-item h4{font-size:16px;font-weight:700;margin-bottom:6px}
.step-item p{font-size:14px;color:rgba(255,255,255,.8);line-height:1.7}
/* ===== FAQ ===== */
.faq-wrap{max-width:820px;margin:0 auto}
.faq-item{background:var(--bg-alt);border:1px solid var(--border);border-radius:var(--radius);margin-bottom:16px;overflow:hidden;transition:var(--transition)}
.faq-item:hover{border-color:rgba(26,60,52,.25)}
.faq-q{padding:22px 26px;display:flex;align-items:center;justify-content:space-between;gap:20px;cursor:pointer;font-size:16px;font-weight:600;color:var(--text);transition:var(--transition);user-select:none}
.faq-q i{color:var(--accent);font-size:15px;transition:transform .3s}
.faq-item.open .faq-q i{transform:rotate(135deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .4s ease}
.faq-a-inner{padding:0 26px 22px;font-size:14px;line-height:1.9;color:var(--text-soft)}
/* ===== CTA ===== */
.cta-section{position:relative;padding:95px 0;background:linear-gradient(120deg,rgba(26,60,52,.88),rgba(26,60,52,.72)),url('/assets/images/backpic/back-1.jpg') center/cover no-repeat;text-align:center;color:#fff}
.cta-inner{position:relative;z-index:1}
.cta-inner h2{font-size:clamp(26px,3.5vw,38px);font-weight:800;line-height:1.3;margin-bottom:16px}
.cta-inner p{font-size:15px;max-width:600px;margin:0 auto 32px;line-height:1.85;color:rgba(255,255,255,.85)}
.cta-actions{display:flex;gap:16px;justify-content:center;flex-wrap:wrap}
/* ===== Footer ===== */
.site-footer{background:#132b25;color:rgba(255,255,255,.7);padding:60px 0 30px}
.footer-top{display:grid;grid-template-columns:1.4fr 1fr 1.2fr;gap:40px;margin-bottom:44px}
.footer-brand .logo{color:#fff;margin-bottom:14px}
.footer-brand p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.68);max-width:360px}
.footer-col h4{font-size:15px;font-weight:700;color:#fff;margin-bottom:18px}
.footer-col ul li{margin-bottom:10px}
.footer-col ul a{font-size:14px;color:rgba(255,255,255,.68);transition:var(--transition)}
.footer-col ul a:hover{color:var(--accent);padding-left:4px}
.footer-contact li{font-size:14px;color:rgba(255,255,255,.68);margin-bottom:12px;display:flex;align-items:center;gap:10px}
.footer-contact li i{color:var(--accent);width:18px;text-align:center}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding-top:22px;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:10px;font-size:13px;color:rgba(255,255,255,.45)}
.footer-bottom a{color:rgba(255,255,255,.55)}
.footer-bottom a:hover{color:var(--accent)}
/* ===== Responsive ===== */
@media (max-width:1024px){
  .directory-grid{grid-template-columns:repeat(2,1fr)}
  .hl-grid{grid-template-columns:repeat(3,1fr);gap:18px}
  .reco-grid{grid-template-columns:repeat(2,1fr)}
  .news-wrap{grid-template-columns:1fr;gap:30px}
  .share-grid{grid-template-columns:1fr;gap:36px}
  .footer-top{grid-template-columns:1fr 1fr}
  .hero-status{padding:18px 20px}
}
@media (max-width:768px){
  .header-wrap{height:auto;padding:12px 0;flex-wrap:wrap;gap:12px}
  .logo{width:100%;justify-content:center}
  .header-search{order:3;flex:1 1 100%;max-width:none}
  .header-nav{order:2;margin-left:auto}
  .header-nav a{padding:8px 16px;font-size:13px}
  .hero{padding:60px 0 44px}
  .hero-icons{grid-template-columns:repeat(2,1fr);gap:14px}
  .hero-status{flex-direction:column;gap:18px;padding:20px}
  .status-item + .status-item{border-left:none;border-top:1px solid var(--border);padding-top:12px;width:100%}
  .section{padding:56px 0}
  .directory-grid{grid-template-columns:repeat(2,1fr)}
  .hl-grid{grid-template-columns:repeat(2,1fr);gap:20px}
  .reco-grid{grid-template-columns:1fr}
  .news-item{flex-direction:column;gap:8px}
  .news-item time{align-self:flex-start}
  .share-section{padding:56px 0}
  .footer-top{grid-template-columns:1fr;gap:30px}
  .footer-bottom{flex-direction:column;text-align:center}
}
@media (max-width:520px){
  .hero h1{font-size:24px}
  .hero-icons{grid-template-columns:repeat(2,1fr)}
  .directory-grid{grid-template-columns:1fr}
  .hl-grid{grid-template-columns:1fr}
  .hl-card{border-bottom:1px solid var(--border);padding-bottom:24px}
  .hl-card:last-child{border-bottom:none}
  .section-head h2{font-size:24px}
  .cta-actions{flex-direction:column;align-items:center}
  .cta-actions .btn{width:100%;max-width:320px}
  .share-icons .share-btn{flex:1;justify-content:center;min-width:120px}
  .step-item{flex-direction:column}
}
/* ===== Utility ===== */
.text-center{text-align:center}
.mt-1{margin-top:10px}
.mb-1{margin-bottom:10px}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition:none!important;animation:none!important}
  html{scroll-behavior:auto}
}