/* roulang page: index */
:root{
  --primary:#0E7C66;
  --primary-deep:#08503F;
  --primary-mid:#14967C;
  --primary-soft:#E4F1EC;
  --accent:#C89B4C;
  --accent-deep:#A87E35;
  --accent-soft:#F6EAD8;
  --bg:#F7F5F1;
  --bg-deep:#1C2421;
  --card:#FFFFFF;
  --ink:#1C2421;
  --ink-soft:#57645E;
  --ink-faint:#8C9891;
  --line:#E6E0D8;
  --radius:14px;
  --radius-sm:8px;
  --shadow-sm:0 2px 8px rgba(28,36,33,.06);
  --shadow-md:0 8px 24px rgba(28,36,33,.08);
  --shadow-lg:0 16px 40px rgba(28,36,33,.12);
  --container:1200px;
  --header-h:72px;
  --section-gap:100px;
  --font-main:"PingFang SC","Hiragino Sans GB","Source Han Sans SC","Noto Sans CJK SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --font-number:Georgia,"Times New Roman","Songti SC",serif;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--font-main);
  font-size:16px;
  line-height:1.7;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
ul,ol{list-style:none}
button,input,select,textarea{font-family:inherit;font-size:inherit}
.container{width:min(var(--container),92%);margin:0 auto}
.section{padding:calc(var(--section-gap)) 0;position:relative}
.section-head{margin-bottom:48px;max-width:760px}
.section-head h2{
  font-size:clamp(26px,3.2vw,36px);
  font-weight:800;
  letter-spacing:-.02em;
  line-height:1.25;
  margin-bottom:12px;
}
.section-head p{color:var(--ink-soft);font-size:15px;line-height:1.8}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}

/* Buttons */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 28px;border-radius:var(--radius-sm);
  font-size:15px;font-weight:600;line-height:1;border:1px solid transparent;
  cursor:pointer;transition:all .22s ease;white-space:nowrap;
}
.btn:focus-visible{outline:3px solid rgba(14,124,102,.35);outline-offset:2px}
.btn:active{transform:translateY(1px)}
.btn-accent{background:var(--accent);color:var(--ink)}
.btn-accent:hover{background:var(--accent-deep);color:#fff;transform:translateY(-2px);box-shadow:0 8px 20px rgba(168,126,53,.25)}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-deep);transform:translateY(-2px);box-shadow:0 8px 20px rgba(8,80,63,.22)}
.btn-outline{background:transparent;border-color:var(--primary);color:var(--primary)}
.btn-outline:hover{background:var(--primary-soft);transform:translateY(-2px)}
.btn-outline-light{background:transparent;border-color:rgba(255,255,255,.7);color:#fff}
.btn-outline-light:hover{background:rgba(255,255,255,.14);border-color:#fff}
.btn-sm{padding:9px 18px;font-size:13px}
.btn-block{width:100%}

/* Badge */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:999px;background:var(--primary-soft);
  color:var(--primary-deep);font-size:12px;font-weight:600;line-height:1.4;
}
.badge-gold{background:var(--accent-soft);color:var(--accent-deep)}
.badge-dark{background:var(--bg-deep);color:#fff}

/* Header */
.site-header{
  position:sticky;top:0;z-index:100;
  background:rgba(255,255,255,.92);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
}
.header-inner{
  height:var(--header-h);
  display:flex;align-items:center;gap:24px;
}
.brand{
  font-size:19px;font-weight:800;letter-spacing:-.02em;color:var(--ink);
  display:flex;align-items:center;gap:8px;
}
.brand i{color:var(--primary);font-size:20px}
.main-nav{margin-left:auto}
.main-nav ul{display:flex;gap:6px}
.main-nav a{
  display:block;padding:8px 14px;border-radius:8px;
  font-size:14px;font-weight:500;color:var(--ink-soft);
  transition:all .2s;
}
.main-nav a:hover{color:var(--primary);background:var(--primary-soft)}
.main-nav a.active{color:var(--primary-deep);font-weight:600;background:var(--primary-soft)}
.header-actions{display:flex;align-items:center;gap:14px}
.dot-status{color:#22B573;font-size:12px;display:inline-flex;align-items:center;gap:5px;white-space:nowrap}
.dot-status span{font-size:12px;color:var(--ink-soft);font-weight:500}
.notify-bell{position:relative;color:var(--ink-soft);font-size:17px;display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:50%;transition:all .2s;cursor:pointer}
.notify-bell:hover{background:var(--bg);color:var(--ink);animation:bellShake .5s}
.notify-dot{position:absolute;top:6px;right:7px;width:7px;height:7px;background:#E4573D;border-radius:50%;border:1.5px solid #fff}
@keyframes bellShake{0%,100%{transform:rotate(0)}20%{transform:rotate(-12deg)}60%{transform:rotate(10deg)}80%{transform:rotate(-6deg)}}
.nav-toggle{display:none;background:none;border:none;font-size:22px;color:var(--ink);cursor:pointer;padding:4px 8px;border-radius:8px}

/* Hero */
.hero{
  position:relative;
  background:linear-gradient(120deg,rgba(8,80,63,.97) 0%,rgba(14,124,102,.93) 55%,rgba(20,150,124,.88) 100%);
  color:#fff;
  padding:110px 0 90px;
  overflow:hidden;
}
.hero::before{
  content:"";
  position:absolute;inset:0;
  background:url('/assets/images/backpic/back-1.jpg') center/cover no-repeat;
  opacity:.18;
  pointer-events:none;
}
.hero::after{
  content:"";
  position:absolute;right:-180px;bottom:-180px;width:460px;height:460px;border-radius:50%;
  background:radial-gradient(circle,rgba(200,155,76,.22),transparent 70%);
  pointer-events:none;
}
.hero .container{position:relative;z-index:2}
.hero-head{max-width:780px}
.hero-chip{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 16px;border-radius:999px;
  background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.22);
  font-size:13px;font-weight:500;letter-spacing:.04em;
  margin-bottom:24px;
}
.hero h1{
  font-size:clamp(32px,5vw,54px);
  font-weight:800;
  line-height:1.2;
  letter-spacing:-.02em;
  margin-bottom:20px;
}
.hero-sub{
  font-size:clamp(15px,1.6vw,18px);
  color:rgba(255,255,255,.85);
  max-width:600px;
  line-height:1.75;
  margin-bottom:32px;
}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:56px}
.hero-trust{
  display:flex;flex-wrap:wrap;gap:18px;
  font-size:13px;color:rgba(255,255,255,.75);
  margin-top:24px;
}
.hero-trust span{display:inline-flex;align-items:center;gap:7px}
.hero-trust i{color:var(--accent)}
.hero-stats{
  display:grid;grid-template-columns:repeat(4,1fr);gap:0;
  border-radius:var(--radius);
  background:rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.16);
  backdrop-filter:blur(6px);
  overflow:hidden;
}
.stat-card{
  padding:28px 24px;text-align:center;
  position:relative;
}
.stat-card+.stat-card::before{
  content:"";position:absolute;left:0;top:20%;bottom:20%;width:1px;background:rgba(255,255,255,.16);
}
.stat-num{
  font-family:var(--font-number);
  font-size:clamp(30px,3.4vw,46px);
  font-weight:700;
  color:#fff;
  line-height:1.1;
  display:block;
  margin-bottom:6px;
}
.stat-num i{font-style:normal;font-size:.45em;color:var(--accent);margin-left:2px}
.stat-label{font-size:13px;color:rgba(255,255,255,.72);letter-spacing:.02em}
.hero-scroll{
  position:absolute;bottom:26px;left:50%;transform:translateX(-50%);
  z-index:3;
}
.hero-scroll a{
  display:flex;align-items:center;justify-content:center;
  width:38px;height:38px;border-radius:50%;
  border:1px solid rgba(255,255,255,.45);color:#fff;font-size:14px;
  animation:scrollHint 1.8s ease-in-out infinite;
  transition:background .2s;
}
.hero-scroll a:hover{background:rgba(255,255,255,.15)}
@keyframes scrollHint{0%,100%{transform:translateY(0);opacity:.8}50%{transform:translateY(6px);opacity:.4}}
.hero-trust{margin-bottom:24px}
.hero-cta{margin-bottom:0}

/* Matrix */
.matrix{background:var(--bg)}
.matrix-grid{
  display:grid;grid-template-columns:repeat(3,1fr);gap:24px;
}
.matrix-card{
  position:relative;
  background:var(--card);
  border-radius:var(--radius);
  border:1px solid var(--line);
  padding:32px 28px;
  box-shadow:var(--shadow-sm);
  transition:transform .25s ease,box-shadow .25s ease;
}
.matrix-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.corner-tag{
  position:absolute;top:16px;right:16px;
  padding:4px 12px;border-radius:999px;
  background:var(--primary-soft);color:var(--primary-deep);
  font-size:12px;font-weight:700;
}
.corner-tag.tag-hot{background:var(--accent-soft);color:var(--accent-deep)}
.corner-tag.tag-rec{background:#E8F1FB;color:#2E6DB4}
.matrix-icon{
  width:52px;height:52px;border-radius:14px;
  background:var(--primary-soft);color:var(--primary);
  display:flex;align-items:center;justify-content:center;
  font-size:21px;
  margin-bottom:20px;
  transition:transform .25s;
}
.matrix-card:hover .matrix-icon{transform:scale(1.06)}
.matrix-card h3{font-size:19px;font-weight:700;margin-bottom:10px;letter-spacing:-.01em}
.matrix-card p{font-size:14px;color:var(--ink-soft);line-height:1.75;margin-bottom:18px}
.matrix-card .card-link{font-size:13px;font-weight:600;color:var(--primary);display:inline-flex;align-items:center;gap:6px;transition:gap .2s}
.matrix-card .card-link:hover{gap:10px;color:var(--primary-deep)}

/* Compare */
.compare{background:#FFF;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.compare-wrap{overflow-x:auto;padding-bottom:8px}
.compare-table-wrap{min-width:720px;border-radius:var(--radius);overflow:hidden;border:1px solid var(--line)}
.compare-vs{
  display:flex;align-items:center;gap:14px;justify-content:center;
  margin-bottom:28px;font-size:14px;font-weight:600;
}
.vs-item{
  padding:8px 22px;border-radius:999px;
  background:var(--bg);color:var(--ink-soft);border:1px solid var(--line);
}
.vs-item.vs-active{background:var(--primary);color:#fff;border-color:var(--primary)}
.vs-sep{color:var(--ink-faint);font-weight:700}
.compare-table{
  width:100%;border-collapse:collapse;background:#fff;font-size:14px;
}
.compare-table th,.compare-table td{padding:16px 14px;text-align:left;border-bottom:1px solid var(--line)}
.compare-table thead th{
  background:var(--bg-deep);color:#fff;font-weight:600;font-size:14px;border-bottom:none;
}
.compare-table thead th .th-sub{display:block;font-size:11px;color:rgba(255,255,255,.6);font-weight:400;margin-top:2px}
.compare-table tbody th{font-weight:600;color:var(--ink);background:var(--bg);white-space:nowrap}
.compare-table tbody td{color:var(--ink-soft)}
.compare-table tbody tr:last-child td{border-bottom:none}
.score-high{color:var(--primary);font-weight:700}
.score-mid{color:var(--accent-deep);font-weight:600}
.score-low{color:var(--ink-faint)}
.compare-foot{
  display:flex;align-items:center;gap:14px;margin-top:22px;
  background:var(--primary-soft);border-radius:var(--radius);
  padding:18px 22px;font-size:14px;color:var(--primary-deep);
}
.compare-foot i{font-size:20px}

/* Reviews */
.reviews{background:var(--bg)}
.review-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.review-card{
  background:var(--card);border-radius:var(--radius);border:1px solid var(--line);
  padding:28px;box-shadow:var(--shadow-sm);transition:transform .25s,box-shadow .25s;
}
.review-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md)}
.review-head{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.review-avatar{
  width:44px;height:44px;border-radius:50%;
  background:var(--primary);color:#fff;
  display:flex;align-items:center;justify-content:center;
  font-weight:700;font-size:16px;flex-shrink:0;
}
.review-avatar.av-gold{background:var(--accent);color:var(--ink)}
.review-avatar.av-deep{background:var(--bg-deep)}
.review-head strong{display:block;font-size:15px}
.review-meta{font-size:12px;color:var(--ink-faint)}
.review-card p{font-size:14px;color:var(--ink-soft);line-height:1.8;margin-bottom:14px}
.review-stars{color:var(--accent);font-size:14px;letter-spacing:2px}

/* News */
.news{padding:calc(var(--section-gap) + 20px) 0}
.news-layout{display:grid;grid-template-columns:1fr 340px;gap:48px}
.news-list{display:flex;flex-direction:column;gap:18px}
.news-item{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:28px 30px;transition:border-color .25s,box-shadow .25s,transform .25s;
}
.news-item:hover{border-color:var(--primary-mid);box-shadow:var(--shadow-md);transform:translateY(-2px)}
.news-item-top{display:flex;align-items:center;gap:12px;margin-bottom:12px;flex-wrap:wrap}
.news-item-top time{font-size:13px;color:var(--ink-faint)}
.news-item h3{font-size:19px;font-weight:700;line-height:1.4;margin-bottom:8px;letter-spacing:-.01em}
.news-item h3 a{transition:color .2s}
.news-item h3 a:hover{color:var(--primary)}
.news-item p{font-size:14px;color:var(--ink-soft);line-height:1.75;margin-bottom:16px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-link{
  font-size:13px;font-weight:600;color:var(--primary);
  display:inline-flex;align-items:center;gap:6px;
}
.news-link i{transition:transform .2s}
.news-link:hover i{transform:translateX(4px)}
.news-empty{
  text-align:center;padding:70px 20px;background:var(--card);
  border:2px dashed var(--line);border-radius:var(--radius);color:var(--ink-faint);font-size:15px;
}
.news-empty i{display:block;font-size:40px;margin-bottom:14px;color:var(--line)}
.news-sidebar{display:flex;flex-direction:column;gap:24px}
.side-card{
  background:var(--card);border-radius:var(--radius);border:1px solid var(--line);
  padding:24px;
}
.side-card h4{font-size:16px;font-weight:700;margin-bottom:16px;padding-bottom:12px;border-bottom:1px solid var(--line)}
.tag-cloud{display:flex;flex-wrap:wrap;gap:9px}
.tag-cloud a{
  padding:6px 14px;border-radius:999px;background:var(--bg);
  font-size:13px;color:var(--ink-soft);border:1px solid var(--line);
  transition:all .2s;
}
.tag-cloud a:hover{background:var(--primary-soft);border-color:var(--primary);color:var(--primary)}
.side-nav li+li{border-top:1px dashed var(--line)}
.side-nav a{
  display:flex;align-items:center;justify-content:space-between;
  padding:11px 4px;font-size:14px;color:var(--ink-soft);transition:color .2s,padding-left .2s;
}
.side-nav a:hover{color:var(--primary);padding-left:8px}
.side-nav i{color:var(--ink-faint);font-size:12px}

/* FAQ */
.faq{background:#FFF;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.faq-list{max-width:840px;margin:0 auto}
.faq-item{
  border:1px solid var(--line);border-radius:var(--radius);
  margin-bottom:14px;background:var(--card);
  transition:border-color .25s,box-shadow .25s;
}
.faq-item[open]{border-color:var(--primary-mid);box-shadow:var(--shadow-sm)}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 24px;cursor:pointer;font-size:16px;font-weight:600;
  list-style:none;user-select:none;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-icon{
  width:30px;height:30px;flex-shrink:0;border-radius:50%;
  background:var(--primary-soft);color:var(--primary);
  display:flex;align-items:center;justify-content:center;
  font-size:14px;transition:transform .3s;
}
.faq-item[open] .faq-icon{transform:rotate(45deg);background:var(--primary);color:#fff}
.faq-answer{padding:0 24px 22px;color:var(--ink-soft);font-size:15px;line-height:1.85;max-width:90%}

/* CTA */
.cta-section{padding:calc(var(--section-gap)) 0;background:var(--bg)}
.cta-card{
  background:linear-gradient(125deg,rgba(8,80,63,.97),rgba(14,124,102,.92)),url('/assets/images/backpic/back-2.jpg') center/cover no-repeat;
  border-radius:24px;
  padding:60px;
  color:#fff;
  display:grid;grid-template-columns:.9fr 1.1fr;gap:56px;
  position:relative;overflow:hidden;
}
.cta-card::after{
  content:"";position:absolute;left:-100px;top:-100px;width:300px;height:300px;border-radius:50%;
  background:radial-gradient(circle,rgba(200,155,76,.28),transparent 70%);pointer-events:none;
}
.cta-text h2{font-size:clamp(26px,3vw,34px);font-weight:800;margin-bottom:16px;line-height:1.3}
.cta-text p{color:rgba(255,255,255,.82);font-size:15px;line-height:1.8;margin-bottom:18px}
.cta-trust{display:flex;gap:10px;flex-wrap:wrap;margin-top:22px}
.cta-trust span{
  display:inline-flex;align-items:center;gap:8px;
  background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.18);
  padding:7px 15px;border-radius:999px;font-size:13px;
}
.lead-form{
  background:rgba(255,255,255,.1);
  backdrop-filter:blur(8px);
  border:1px solid rgba(255,255,255,.2);
  border-radius:18px;
  padding:34px;
}
.form-row{margin-bottom:18px}
.form-row label{
  display:block;font-size:13px;font-weight:600;margin-bottom:7px;color:rgba(255,255,255,.9);
}
.form-row input,.form-row select,.form-row textarea{
  width:100%;padding:12px 14px;border-radius:var(--radius-sm);
  border:1px solid rgba(255,255,255,.28);background:rgba(255,255,255,.12);
  color:#fff;font-size:14px;transition:border-color .2s,box-shadow .2s;
}
.form-row input::placeholder,.form-row textarea::placeholder{color:rgba(255,255,255,.5)}
.form-row input:focus,.form-row select:focus,.form-row textarea:focus{
  outline:none;border-color:var(--accent);box-shadow:0 0 0 4px rgba(200,155,76,.18);
}
.form-row select{appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 8'%3E%3Cpath fill='%23fff' d='M6 8L0 0h12z'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 14px center}
.form-row select option{color:var(--ink);background:#fff}
.lead-form button{margin-top:8px}
.chips-line{display:flex;gap:16px;justify-content:center;margin-top:16px;font-size:12px;color:rgba(255,255,255,.7)}
.chips-line span{display:inline-flex;align-items:center;gap:6px}

/* Footer */
.site-footer{background:var(--bg-deep);color:rgba(255,255,255,.7);padding:70px 0 0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:48px;margin-bottom:48px}
.footer-brand .brand{color:#fff;margin-bottom:14px}
.footer-brand p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.6)}
.footer-links h4,.footer-contact h4{
  color:#fff;font-size:15px;font-weight:700;margin-bottom:16px;
}
.footer-links li{margin-bottom:9px}
.footer-links a{font-size:14px;color:rgba(255,255,255,.6);transition:color .2s,padding-left .2s}
.footer-links a:hover{color:var(--accent);padding-left:5px}
.footer-contact p{font-size:14px;margin-bottom:8px;color:rgba(255,255,255,.6)}
.footer-contact i{margin-right:8px;color:var(--accent)}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);
  padding:22px 0;text-align:center;font-size:13px;color:rgba(255,255,255,.4);
}

/* Reveal animation */
.reveal{opacity:0;transform:translateY(20px);transition:opacity .6s ease,transform .6s ease}
.reveal.visible{opacity:1;transform:translateY(0)}
@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
}

/* Responsive */
@media(max-width:1024px){
  :root{--section-gap:72px}
  .matrix-grid{grid-template-columns:repeat(2,1fr)}
  .review-grid{grid-template-columns:repeat(2,1fr)}
  .news-layout{grid-template-columns:1fr 280px;gap:32px}
  .cta-card{grid-template-columns:1fr;padding:44px;gap:36px}
  .hero-stats{grid-template-columns:repeat(2,1fr)}
  .stat-card:nth-child(3)::before{display:none}
  .stat-card:nth-child(odd)::before{display:none}
  .hero{padding:90px 0 70px}
}
@media(max-width:768px){
  .main-nav{
    display:none;
    position:absolute;top:var(--header-h);left:0;right:0;
    background:#fff;border-bottom:1px solid var(--line);
    padding:14px 0;box-shadow:var(--shadow-lg);
  }
  .main-nav.open{display:block}
  .main-nav ul{flex-direction:column;gap:2px;padding:0 4%}
  .main-nav a{padding:13px 16px;font-size:15px}
  .nav-toggle{display:block}
  .dot-status span{display:none}
  .matrix-grid{grid-template-columns:1fr}
  .review-grid{grid-template-columns:1fr}
  .news-layout{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .compare-foot{flex-wrap:wrap}
  .section-head{text-align:left}
  .hero-stats{grid-template-columns:1fr 1fr}
  .stat-card{padding:20px 14px}
  .hero-scroll{display:none}
  .cta-card{padding:28px 22px}
  .lead-form{padding:24px 18px}
  .section{padding:60px 0}
  .hero{padding:70px 0 60px}
}
@media(max-width:520px){
  .header-actions{gap:8px}
  .header-actions .btn{padding:8px 12px;font-size:12px}
  .hero-cta .btn{width:100%}
  .hero-stats{grid-template-columns:1fr}
  .stat-card+.stat-card::before{display:none}
  .footnote{font-size:11px}
}

/* roulang page: article */
:root {
    --pri: #146C5A;
    --pri-dark: #0F4F42;
    --pri-light: #E8F0ED;
    --acc: #C9A063;
    --acc-dark: #A98448;
    --acc-light: #F5EDE1;
    --bg: #F7F5F1;
    --ink: #1C2421;
    --text: #2E3733;
    --muted: #6B7A75;
    --border: #E8E2D8;
    --white: #FFFFFF;
    --radius: 14px;
    --radius-sm: 8px;
    --shadow-sm: 0 2px 8px rgba(28,36,33,.06);
    --shadow-md: 0 6px 20px rgba(28,36,33,.10);
    --shadow-lg: 0 12px 32px rgba(28,36,33,.14);
    --container: 1200px;
    --font-serif: Georgia, "Times New Roman", "Songti SC", "SimSun", "STSong", serif;
    --font-sans: -apple-system, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { font-family: var(--font-sans); font-size: 16px; line-height: 1.7; color: var(--text); background: var(--bg); -webkit-font-smoothing: antialiased; }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
input, select, textarea { font-family: inherit; }
ul, ol { list-style: none; }
.container { max-width: var(--container); margin: 0 auto; padding: 0 24px; }

.site-header { position: sticky; top: 0; z-index: 100; background: rgba(255,255,255,.92); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px); border-bottom: 1px solid var(--border); }
.header-inner { display: flex; align-items: center; height: 72px; gap: 32px; position: relative; }
.brand { font-family: var(--font-serif); font-weight: 700; font-size: 20px; color: var(--pri); display: flex; align-items: center; gap: 9px; letter-spacing: -.2px; }
.brand .fa-solid { color: var(--acc); font-size: 18px; }
.main-nav ul { display: flex; gap: 30px; }
.main-nav a { font-size: 15px; color: var(--text); font-weight: 500; padding: 8px 2px; position: relative; transition: color .25s; }
.main-nav a::after { content: ""; position: absolute; left: 0; bottom: 0; width: 0; height: 2px; background: var(--pri); border-radius: 2px; transition: width .3s ease; }
.main-nav a:hover::after, .main-nav a.active::after { width: 100%; }
.main-nav a.active { color: var(--pri); }
.header-actions { margin-left: auto; display: flex; align-items: center; gap: 18px; }
.dot-status { display: flex; align-items: center; gap: 7px; font-size: 13px; color: var(--muted); white-space: nowrap; }
.dot-status .fa-circle { font-size: 8px; color: #3BAA7B; animation: pulse 2s infinite; }
@keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: .4; } }
.notify-bell { position: relative; width: 36px; height: 36px; border-radius: 50%; display: flex; align-items: center; justify-content: center; border: 1px solid var(--border); color: var(--muted); transition: all .3s; }
.notify-bell:hover { color: var(--pri); border-color: var(--pri); transform: rotate(-12deg); }
.notify-dot { position: absolute; top: 6px; right: 8px; width: 8px; height: 8px; background: #E85D5D; border-radius: 50%; border: 2px solid #fff; }
.btn { display: inline-flex; align-items: center; justify-content: center; font-weight: 600; border-radius: var(--radius-sm); transition: all .3s ease; cursor: pointer; font-size: 15px; line-height: 1; }
.btn-accent { background: var(--acc); color: var(--ink); border: 2px solid var(--acc); padding: 10px 22px; }
.btn-accent:hover { background: var(--acc-dark); border-color: var(--acc-dark); transform: translateY(-2px); box-shadow: var(--shadow-md); }
.btn-outline { border: 2px solid var(--pri); color: var(--pri); padding: 10px 22px; background: transparent; }
.btn-outline:hover { background: var(--pri-light); transform: translateY(-2px); box-shadow: var(--shadow-sm); }
.btn:focus-visible, .nav-toggle:focus-visible, .faq-toggle:focus-visible { outline: 3px solid rgba(20,108,90,.3); outline-offset: 2px; }
.nav-toggle { display: none; width: 40px; height: 40px; border-radius: 8px; border: 1px solid var(--border); align-items: center; justify-content: center; font-size: 18px; color: var(--pri); transition: all .3s; }
.nav-toggle:hover { background: var(--pri-light); }

.breadcrumb-bar { background: #FFF; border-bottom: 1px solid var(--border); padding: 14px 0; }
.breadcrumb { display: flex; align-items: center; flex-wrap: wrap; gap: 6px; font-size: 14px; color: var(--muted); }
.breadcrumb a { color: var(--pri); transition: color .2s; }
.breadcrumb a:hover { color: var(--pri-dark); }
.breadcrumb .sep { color: #C4CBC8; }

.article-wrapper { padding: 56px 0 80px; }
.article-header { max-width: 820px; margin: 0 auto 40px; }
.article-cover { border-radius: var(--radius); overflow: hidden; margin-bottom: 28px; box-shadow: var(--shadow-md); position: relative; }
.article-cover img { width: 100%; height: 420px; object-fit: cover; }
.article-cover::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, transparent 55%, rgba(28,36,33,.12) 100%); }
.article-meta { display: flex; align-items: center; flex-wrap: wrap; gap: 14px; margin-bottom: 16px; }
.article-meta .badge { background: var(--pri-light); color: var(--pri); font-size: 13px; font-weight: 600; padding: 5px 14px; border-radius: 20px; }
.article-meta .meta-item { display: flex; align-items: center; gap: 6px; font-size: 14px; color: var(--muted); }
.article-meta .meta-item i { color: var(--acc); }
.article-title { font-family: var(--font-serif); font-size: 38px; line-height: 1.25; color: var(--ink); letter-spacing: -.5px; margin-bottom: 14px; }
.article-intro { font-size: 17px; color: var(--muted); line-height: 1.7; }

.article-body { max-width: 800px; margin: 0 auto; background: #FFF; border-radius: var(--radius); padding: 48px 56px; box-shadow: var(--shadow-sm); border: 1px solid rgba(232,226,216,.6); }
.article-body p { margin: 0 0 1.4em; font-size: 16.5px; line-height: 1.8; }
.article-body h2 { font-family: var(--font-serif); font-size: 26px; color: var(--ink); margin: 2em 0 .8em; padding-left: 14px; border-left: 4px solid var(--acc); line-height: 1.4; }
.article-body h3 { font-family: var(--font-serif); font-size: 21px; color: var(--pri); margin: 1.8em 0 .6em; line-height: 1.4; }
.article-body h4 { font-size: 17px; font-weight: 700; color: var(--ink); margin: 1.4em 0 .5em; }
.article-body blockquote { background: var(--pri-light); border-left: 4px solid var(--pri); padding: 18px 24px; border-radius: 0 var(--radius-sm) var(--radius-sm) 0; margin: 1.6em 0; color: var(--pri-dark); font-size: 15.5px; }
.article-body blockquote p:last-child { margin-bottom: 0; }
.article-body img { border-radius: var(--radius); margin: 1.8em 0; box-shadow: var(--shadow-sm); width: 100%; height: auto; }
.article-body ul, .article-body ol { margin: 1em 0 1.4em 1.5em; }
.article-body li { margin-bottom: .6em; line-height: 1.7; }
.article-body a { color: var(--pri); border-bottom: 1px solid transparent; transition: border-color .25s; }
.article-body a:hover { border-color: var(--pri); }
.article-body table { width: 100%; border-collapse: collapse; margin: 1.6em 0; font-size: 15px; }
.article-body th { background: var(--pri-light); color: var(--pri-dark); text-align: left; padding: 12px 16px; font-weight: 600; border: 1px solid var(--border); }
.article-body td { padding: 12px 16px; border: 1px solid var(--border); }
.article-body hr { border: none; border-top: 1px solid var(--border); margin: 2em 0; }

.article-empty { max-width: 800px; margin: 0 auto; background: #FFF; border-radius: var(--radius); padding: 80px 40px; text-align: center; box-shadow: var(--shadow-sm); border: 1px solid rgba(232,226,216,.6); }
.article-empty .empty-icon { font-size: 48px; color: var(--pri); margin-bottom: 20px; }
.article-empty h3 { font-size: 24px; color: var(--ink); margin-bottom: 10px; }
.article-empty p { color: var(--muted); margin-bottom: 24px; }

.article-tags-wrap { max-width: 800px; margin: 28px auto 0; display: flex; flex-wrap: wrap; gap: 10px; }
.tag { display: inline-flex; align-items: center; gap: 6px; background: #FFF; border: 1px solid var(--border); color: var(--muted); font-size: 13px; font-weight: 500; padding: 6px 16px; border-radius: 30px; transition: all .25s; }
.tag:hover { border-color: var(--pri); color: var(--pri); background: var(--pri-light); }
.tag i { font-size: 11px; color: var(--acc); }
.tag.is-cat { background: var(--pri-light); color: var(--pri); border-color: transparent; font-weight: 600; }

.related-section { max-width: 1100px; margin: 56px auto 0; }
.related-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 26px; }
.related-head h2 { font-family: var(--font-serif); font-size: 26px; color: var(--ink); position: relative; padding-left: 16px; }
.related-head h2::before { content: ""; position: absolute; left: 0; top: 50%; transform: translateY(-50%); width: 5px; height: 26px; background: var(--acc); border-radius: 3px; }
.related-head .related-note { font-size: 13px; color: var(--muted); }
.related-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.related-card { background: #FFF; border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; transition: all .35s ease; display: block; }
.related-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: rgba(20,108,90,.2); }
.related-cover { height: 180px; overflow: hidden; position: relative; }
.related-cover img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s ease; }
.related-card:hover .related-cover img { transform: scale(1.04); }
.related-cover::after { content: ""; position: absolute; inset: 0; background: linear-gradient(0deg, rgba(28,36,33,.18) 0%, transparent 60%); }
.related-info { padding: 18px 20px 20px; }
.related-info h4 { font-size: 16px; line-height: 1.5; color: var(--ink); margin-bottom: 10px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.related-info .related-meta { display: flex; align-items: center; justify-content: space-between; }
.related-info time { font-size: 13px; color: var(--muted); }
.related-info .read-more { font-size: 13px; color: var(--pri); font-weight: 600; display: inline-flex; align-items: center; gap: 6px; transition: gap .25s; }
.related-card:hover .read-more { gap: 10px; }

.back-home-wrap { max-width: 800px; margin: 40px auto 0; text-align: center; }
.back-home-wrap .back-btn { display: inline-flex; align-items: center; gap: 8px; border: 2px solid var(--pri); color: var(--pri); padding: 11px 30px; border-radius: var(--radius-sm); font-size: 15px; font-weight: 600; background: transparent; transition: all .3s; }
.back-home-wrap .back-btn:hover { background: var(--pri); color: #FFF; transform: translateY(-2px); box-shadow: var(--shadow-md); }
.back-home-wrap .back-btn i { transition: transform .25s; }
.back-home-wrap .back-btn:hover i { transform: translateX(-4px); }

.site-footer { background: var(--pri-dark); color: rgba(255,255,255,.7); margin-top: 60px; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 48px; padding: 60px 0 40px; }
.footer-brand .brand { color: #FFF; font-size: 20px; }
.footer-brand .brand .fa-solid { color: var(--acc); }
.footer-brand p { margin-top: 16px; font-size: 14px; line-height: 1.7; max-width: 360px; color: rgba(255,255,255,.6); }
.footer-links h4, .footer-contact h4 { color: #FFF; font-size: 15px; font-weight: 600; margin-bottom: 20px; letter-spacing: .3px; }
.footer-links ul li { margin-bottom: 10px; }
.footer-links ul a { font-size: 14px; color: rgba(255,255,255,.6); transition: color .25s, padding-left .25s; }
.footer-links ul a:hover { color: var(--acc); padding-left: 6px; }
.footer-contact p { font-size: 14px; color: rgba(255,255,255,.6); margin-bottom: 12px; display: flex; align-items: flex-start; gap: 8px; }
.footer-contact p i { color: var(--acc); margin-top: 3px; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.1); padding: 22px 0; text-align: center; }
.footer-bottom p { font-size: 13px; color: rgba(255,255,255,.4); }

::-webkit-scrollbar { width: 10px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: #B8C4BF; border-radius: 6px; }
::-webkit-scrollbar-thumb:hover { background: var(--pri); }

@media (max-width: 1024px) {
    .main-nav { display: none; position: absolute; top: 100%; left: 0; right: 0; background: #FFF; border-bottom: 1px solid var(--border); padding: 16px 24px; box-shadow: var(--shadow-md); border-radius: 0 0 var(--radius) var(--radius); }
    .main-nav.open { display: block; }
    .main-nav ul { flex-direction: column; gap: 4px; }
    .main-nav a { display: block; padding: 12px 16px; border-radius: 8px; }
    .main-nav a::after { display: none; }
    .main-nav a:hover { background: var(--pri-light); }
    .main-nav a.active { background: var(--pri-light); }
    .nav-toggle { display: flex; }
    .dot-status span { display: none; }
    .dot-status .fa-circle { font-size: 10px; }
    .related-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
    .header-inner { height: 64px; gap: 16px; padding: 0 16px; }
    .header-actions { gap: 10px; }
    .btn-accent.btn-sm { padding: 8px 14px; font-size: 13px; }
    .notify-bell { width: 32px; height: 32px; }
    .brand { font-size: 17px; }
    .article-wrapper { padding: 32px 0 56px; }
    .article-cover img { height: 240px; }
    .article-title { font-size: 28px; }
    .article-body { padding: 28px 22px; }
    .article-body p { font-size: 15.5px; }
    .related-grid { grid-template-columns: 1fr; }
    .related-head h2 { font-size: 22px; }
    .footer-grid { grid-template-columns: 1fr; gap: 32px; padding: 40px 0 24px; }
    .breadcrumb-bar { padding: 10px 0; }
}

@media (max-width: 520px) {
    .container { padding: 0 16px; }
    .article-meta { gap: 8px; }
    .article-meta .meta-item { font-size: 13px; }
    .back-home-wrap .back-btn { width: 100%; justify-content: center; }
}

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; scroll-behavior: auto !important; }
}