/* roulang page: index */
:root{
  --brand:#B44838;
  --brand-dark:#9C3729;
  --brand-soft:#f8ece8;
  --assist:#3E636B;
  --assist-soft:#e7efef;
  --bg:#F5F1EA;
  --white:#FFFFFF;
  --ink:#262A2E;
  --muted:#5B606A;
  --line:#E2DCD2;
  --card-line:#EFE9E0;
  --shadow-1:0 4px 12px rgba(60,56,48,.06);
  --shadow-2:0 14px 32px rgba(60,56,48,.1);
  --radius:18px;
  --radius-sm:10px;
  --font:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:var(--font);background:var(--bg);color:var(--ink);line-height:1.7;font-size:16px;-webkit-font-smoothing:antialiased;font-variant-numeric:tabular-nums}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
ul,li{margin:0;padding:0;list-style:none}
button,input,select,textarea{font:inherit;color:inherit}
.container{max-width:1200px;margin:0 auto;padding:0 20px}
.section{padding:clamp(56px,7vw,92px) 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:38px;flex-wrap:wrap}
.label{display:inline-flex;align-items:center;gap:8px;color:var(--brand);font-weight:700;font-size:14px;letter-spacing:.04em;margin-bottom:12px}
.label::before{content:"";width:24px;height:3px;border-radius:99px;background:var(--brand);display:inline-block}
.section-title{font-size:clamp(26px,3.2vw,36px);line-height:1.25;margin:0;color:var(--ink);font-weight:800;letter-spacing:-.01em}
.section-desc{color:var(--muted);font-size:16px;max-width:680px;line-height:1.8;margin:6px 0 0}
.btn{display:inline-flex;align-items:center;justify-content:center;border-radius:10px;height:48px;padding:0 24px;font-weight:700;font-size:15px;border:2px solid transparent;cursor:pointer;transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease;white-space:nowrap}
.btn-primary{background:var(--brand);border-color:#8a3022;color:#fff;box-shadow:0 4px 8px rgba(164,60,43,.18)}
.btn-primary:hover{background:var(--brand-dark);transform:translateY(-2px);box-shadow:0 8px 18px rgba(164,60,43,.22)}
.btn-primary:active{transform:none;opacity:.9}
.btn-ghost{background:transparent;border-color:rgba(255,255,255,.65);color:#fff}
.btn-ghost:hover{background:rgba(255,255,255,.12);border-color:#fff;transform:translateY(-2px)}
.btn-outline{background:transparent;border-color:var(--assist);color:var(--assist)}
.btn-outline:hover{background:rgba(62,99,107,.08);border-color:var(--assist)}
.btn-sm{height:42px;padding:0 18px;font-size:14px}
.btn-light{background:#fff;color:var(--brand);border-color:#fff}
.btn-light:hover{background:#f8f1ee;color:var(--brand-dark)}
.btn:focus-visible,input:focus-visible,textarea:focus-visible{outline:3px solid rgba(62,99,107,.45);outline-offset:2px}
.text-link{color:var(--brand);font-weight:600;display:inline-flex;align-items:center;gap:4px}
.text-link:hover{color:var(--brand-dark)}
h1,h2,h3,h4{font-weight:800;font-family:inherit;margin-top:0}
.icon-bg{display:inline-flex;align-items:center;justify-content:center;width:48px;height:48px;border-radius:14px;background:var(--brand-soft);color:var(--brand)}

/* header */
.site-header{background:rgba(255,255,255,.88);backdrop-filter:blur(9px);-webkit-backdrop-filter:blur(9px);position:sticky;top:0;z-index:999;border-bottom:1px solid var(--line)}
.header-inner{max-width:1320px;margin:auto;padding:0 20px;height:76px;display:flex;align-items:center;gap:14px}
.brand{display:flex;align-items:center;gap:8px;font-size:22px;font-weight:800;color:var(--brand);white-space:nowrap}
.brand .brand-mark{width:38px;height:38px;border-radius:12px;background:var(--brand);color:#fff;display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:800;box-shadow:0 2px 8px rgba(180,72,56,.35)}
.main-nav{display:flex;align-items:center;gap:2px}
.main-nav a{padding:10px 13px;font-size:15px;font-weight:550;color:#3d4145;border-radius:8px;position:relative;transition:color .2s,background .2s}
.main-nav a:hover{background:#f6f0e8;color:var(--brand)}
.main-nav a.active{color:var(--brand);font-weight:700}
.main-nav a.active::after{content:"";position:absolute;left:13px;right:13px;bottom:3px;height:3px;border-radius:99px;background:var(--brand)}
.search-wrap{flex:1;display:flex;justify-content:flex-end;min-width:0}
.h-search{height:44px;border-radius:999px;border:1px solid #e4dccf;background:#fbfaf7;display:flex;align-items:center;gap:0;width:min(420px,100%);padding:0 4px 0 16px;transition:background .2s,border .2s,box-shadow .2s}
.h-search:focus-within{background:#fff;border-color:var(--brand);box-shadow:0 0 0 3px rgba(180,72,56,.15)}
.h-search svg{flex:none;color:var(--muted)}
.h-search input{border:none;background:none;flex:1;min-width:0;padding:0 14px;height:40px;outline:none;font-size:14px}
.h-search input::placeholder{color:#9a968e}
.h-search .search-btn{height:36px;padding:0 14px;border-radius:999px;border:none;background:var(--brand);color:#fff;font-size:13px;font-weight:700;cursor:pointer;transition:background .2s}
.h-search .search-btn:hover{background:var(--brand-dark)}
.nav-toggle{display:none;width:44px;height:44px;background:#f5f1ea;border:none;border-radius:10px;align-items:center;justify-content:center;flex-direction:column;gap:5px;cursor:pointer}
.nav-toggle span{display:block;width:22px;height:2px;background:var(--ink);border-radius:99px}
.nav-toggle-input{display:none}
.mobile-nav{display:none}

/* hero */
.hero{position:relative;display:flex;align-items:center;min-height:max(640px,85vh);background:linear-gradient(96deg,rgba(26,26,23,.92),rgba(26,26,23,.55) 58%,rgba(26,26,22,.35)),url("/assets/images/backpic/back-1.png") center/cover no-repeat;padding:64px 0;color:#fff;overflow:hidden}
.hero-inner{display:grid;grid-template-columns:1.05fr .85fr;gap:48px;align-items:center}
.hero-kicker{display:inline-flex;align-items:center;gap:8px;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.28);border-radius:999px;padding:6px 14px;color:#fff;font-size:13px;font-weight:600;margin-bottom:20px;backdrop-filter:blur(6px)}
.hero-kicker::before{content:"";width:8px;height:8px;border-radius:50%;background:#7fd6a8}
.hero-title{font-size:clamp(36px,4.6vw,54px);line-height:1.18;margin:0 0 20px;letter-spacing:-.01em;font-weight:800}
.hero-title em{color:#efcf9f;font-style:normal}
.hero-sub{font-size:clamp(15px,1.4vw,17px);line-height:1.9;color:rgba(255,255,255,.86);max-width:620px;margin-bottom:32px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:34px}
.hero-chips{display:flex;flex-wrap:wrap;gap:12px}
.hero-chip{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.16);color:rgba(255,255,255,.9);padding:8px 14px;border-radius:10px;font-size:13px;line-height:1.5}
.hero-chip strong{color:#fff}
.hero-visual{margin-left:auto;width:100%}
.hero-visual img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:24px;box-shadow:0 24px 60px rgba(24,22,18,.4)}
.hero-note{position:absolute;right:6%;bottom:40px;font-size:13px;color:rgba(255,255,255,.6);letter-spacing:.03em;display:none}

/* metrics */
.metrics-section{background:var(--white);padding:0;position:relative;z-index:2}
.metrics-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-left:1px solid var(--line);border-top:1px solid var(--line)}
.metric-item{padding:34px 28px;border-right:1px solid var(--line);border-bottom:1px solid var(--line);background:var(--white);transition:box-shadow .3s}
.metric-item:hover{box-shadow:inset 0 3px 0 var(--brand),var(--shadow-1)}
.metric-icon{width:44px;height:44px;border-radius:12px;background:var(--assist-soft);display:flex;align-items:center;justify-content:center;color:var(--assist);margin-bottom:14px}
.metric-num{font-size:42px;font-weight:800;line-height:1;letter-spacing:-.02em;color:var(--ink)}
.metric-num small{font-size:14px;font-weight:700;color:var(--muted);margin-left:2px}
.metric-desc{margin-top:10px;color:var(--muted);font-size:14px;line-height:1.6}

/* services */
.services-section{background:var(--bg)}
.services-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.service-card{background:var(--white);border:1px solid var(--card-line);border-radius:var(--radius);padding:6px;box-shadow:var(--shadow-1);display:flex;gap:4px;overflow:hidden;transition:transform .3s ease,box-shadow .3s ease}
.service-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-2)}
.service-card + .service-card{margin-top:24px}
.service-card:nth-child(2n+1){margin-top:24px}
.service-card:nth-child(2n){margin-top:48px}
.service-info{padding:26px 12px 24px 20px}
.service-tag{display:inline-block;padding:4px 10px;font-size:13px;background:var(--brand-soft);color:var(--brand);border-radius:999px;margin-bottom:16px}
.service-title{font-size:21px;margin:0 0 12px}
.service-text{color:var(--muted);font-size:15px;line-height:1.85;margin-bottom:18px}
.service-dots{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:18px}
.service-dots li{background:#f4f0e8;color:var(--assist);padding:5px 10px;font-size:13px;border-radius:8px;line-height:1.4}
.service-bottom{margin-top:auto;font-size:14px;font-weight:700;color:var(--brand);transition:padding .2s}
.service-card:hover .service-bottom{padding-left:8px}

/* compare */
.compare{background:#efe9df}
.compare-wrap{display:grid;grid-template-columns:1fr 1fr;gap:26px;margin-top:34px}
.compare-card{border-radius:var(--radius);border:1px solid var(--line);overflow:hidden;background:#fff;transition:transform .3s,box-shadow .3s}
.compare-card.before:hover{transform:translateY(-4px);box-shadow:var(--shadow-1)}
.compare-card.after{border-color:rgba(47,125,91,.25);box-shadow:0 10px 30px rgba(47,125,91,.12)}
.compare-head{padding:22px 26px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:14px}
.compare-card.before .compare-head{background:#f3f0e9}
.compare-card.after .compare-head{background:#eff6f2}
.compare-title{font-size:20px;font-weight:800;margin:0}
.compare-tag{font-size:13px;padding:5px 12px;border-radius:999px;font-weight:700}
.compare-card.before .compare-tag{background:#e6e2d8;color:#7c746b}
.compare-card.after .compare-tag{background:rgba(47,125,91,.12);color:var(--success)}
.compare-body{padding:18px 26px 26px}
.compare-body li{padding:12px 0;display:flex;gap:12px;align-items:flex-start;border-bottom:1px dashed #ece5d8;font-size:15px;color:#3d3f3f;line-height:1.6}
.compare-body li:last-child{border-bottom:none}
.compare-icon{flex:none;width:22px;height:22px;border-radius:50%;display:flex;align-items:center;justify-content:center;margin-top:2px}
.compare-card.before .compare-icon{background:#f0e5e2;color:#ab6a5e}
.compare-card.after .compare-icon{background:#e5f2ea;color:var(--success)}

/* trust strip */
.trust{position:relative;background:linear-gradient(90deg,rgba(38,40,42,.94),rgba(38,40,42,.86)),url("/assets/images/backpic/back-2.png") center/cover no-repeat;color:#fff}
.trust-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.trust-item{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.1);padding:24px;border-radius:14px;min-height:100%}
.trust-icon{width:44px;height:44px;border-radius:12px;background:rgba(255,255,255,.16);display:flex;align-items:center;justify-content:center;color:#ecc186;margin-bottom:12px}
.trust-title{font-size:18px;font-weight:700;color:#fff;margin-bottom:6px}
.trust-text{font-size:14px;color:rgba(255,255,255,.75);line-height:1.8}
.trust-text strong{color:#fff}

/* faq */
.faq-section{background:var(--white)}
.faq-layout{display:grid;grid-template-columns:1fr 480px;gap:50px;align-items:start}
.faq-intro h2{font-size:30px;margin:0 0 16px}
.faq-intro p{color:var(--muted);margin:0 0 22px;line-height:1.8}
.faq-guide-card{background:#f6f2ea;border:1px solid var(--card-line);padding:24px;border-radius:18px;margin-top:16px}
.faq-guide-card h4{margin:0 0 10px;font-size:18px}
.faq-guide-card p{color:var(--muted);font-size:14px;line-height:1.8;margin-bottom:16px}
.faq-list details{border-bottom:1px solid var(--line);padding:4px 0 4px 16px;margin:0 -16px}
.faq-list details:first-child{border-top:1px solid var(--line);padding-top:8px;margin-top:0}
.faq-list summary{cursor:pointer;padding:16px 18px;list-style:none;display:flex;justify-content:space-between;align-items:center;font-weight:650;font-size:16px;color:var(--ink);min-height:52px;transition:color .2s;position:relative}
.faq-list summary::-webkit-details-marker{display:none}
.faq-list summary::before{content:"";position:absolute;left:-14px;top:18px;bottom:18px;width:3px;border-radius:99px;background:var(--brand);opacity:0;transition:opacity .2s}
.faq-list details[open] summary::before,.faq-list summary:hover::before{opacity:1}
.faq-list summary:hover{color:var(--brand)}
.faq-list summary i{width:24px;height:24px;border-radius:50%;border:1px solid var(--line);display:flex;align-items:center;justify-content:center;font-style:normal;color:var(--muted);transition:transform .3s,background .3s,border-color .3s;font-size:15px;font-weight:700}
.faq-list details[open] summary i{transform:rotate(45deg);background:var(--brand);color:#fff;border-color:var(--brand)}
.faq-answer{padding:2px 20px 24px 22px;color:var(--muted);line-height:1.9;font-size:15px}

/* news dynamic */
.news-section{background:var(--bg)}
.news-head{margin-bottom:32px}
.news-head .section-title h2? no actual
.news-list{max-width:1100px;margin:0 auto}
.news-row{display:flex;gap:20px;background:var(--white);padding:22px 24px;border:1px solid var(--card-line);border-radius:14px;margin-bottom:14px;transition:box-shadow .25s,transform .2s;align-items:flex-start}
.news-row:hover{box-shadow:var(--shadow-1);transform:translateY(-2px);border-color:#ddd2c4}
.news-time{flex:none;min-width:92px;text-align:center;background:var(--bg);padding:8px 10px;border-radius:12px;font-size:13px;color:var(--muted);line-height:1.3;display:block}
.news-time b{display:block;color:var(--ink);font-size:22px;font-weight:800;line-height:1.2}
.news-main{flex:1;min-width:0}
.news-main h4{font-size:18px;font-weight:700;margin:0 0 4px;line-height:1.4}
.news-main p{color:var(--muted);font-size:14px;line-height:1.8;margin:0 0 12px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-tag{display:inline-flex;align-items:center;gap:6px;font-size:13px;color:var(--assist);margin-right:14px;font-weight:600}
.news-tag::before{content:"";width:6px;height:6px;background:var(--assist);border-radius:50%}
.news-date{font-size:13px;color:#9a958d}
.news-empty{display:flex;align-items:center;justify-content:center;padding:80px 24px;background:var(--white);border:1px dashed #cbc0b1;border-radius:18px;color:var(--muted);text-align:center}
.news-empty div{display:flex;flex-direction:column;align-items:center;gap:12px}
.news-empty p{font-size:16px;color:var(--muted)}
.news-empty svg{width:50px;height:50px;color:#bda88f}
.news-viewmore{margin-top:26px;text-align:center}

/* contact/CTA */
.cta-section{position:relative;background:linear-gradient(115deg,#993a2c,#b44838 60%,#cb604a);padding:74px 0;color:#fff}
.cta-inner{display:grid;grid-template-columns:1fr 1fr;gap:54px;align-items:center}
.cta-copy h2{color:#fff;font-size:32px;margin:0 0 14px}
.cta-copy p{color:rgba(255,255,255,.86);line-height:1.9;margin:0 0 26px;font-size:15px}
.cta-list li{position:relative;padding:6px 0 6px 32px;color:rgba(255,255,255,.92);font-size:15px;line-height:1.8}
.cta-list li::before{content:"✓";position:absolute;left:0;top:6px;width:22px;height:22px;background:rgba(255,255,255,.18);color:#fff;display:flex;align-items:center;justify-content:center;border-radius:50%;font-size:12px}
.contact-card{background:var(--white);color:var(--ink);border-radius:24px;padding:32px;box-shadow:0 18px 50px rgba(78,28,18,.18)}
.contact-card h3{margin:0 0 6px}
.contact-card p{color:var(--muted);font-size:14px;margin:0 0 20px}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.form-field{display:flex;flex-direction:column;gap:6px}
.form-field.full{grid-column:span 2}
.form-field label{font-size:13px;color:var(--muted);font-weight:600}
.form-field input,.form-field textarea,.form-field select{border:1px solid #dcd5ca;border-radius:9px;height:44px;padding:0 14px;background:#fbfaf7;outline:none;transition:border .2s,box-shadow .2s;font-size:14px}
.form-field textarea{height:96px;padding:12px 14px;resize:vertical}
.form-field input:focus,.form-field textarea:focus{border-color:var(--brand);box-shadow:0 0 0 3px rgba(180,72,56,.14);background:#fff}
.form-submit{margin-top:20px}
.contact-meta{margin-top:22px;background:#f6f2ea;border-radius:12px;padding:14px 18px;display:flex;gap:20px;flex-wrap:wrap;font-size:14px;color:var(--muted)}
.form-success{display:none;margin-top:16px;background:#edf7f1;border:1px solid rgba(47,125,91,.18);color:var(--success);border-radius:10px;padding:14px 16px;font-size:14px;font-weight:600}

/* footer */
.site-footer{background:#23272A;color:rgba(255,255,255,.64);font-size:14px}
.footer-top{max-width:1260px;margin:0 auto;padding:54px 20px 30px;display:grid;grid-template-columns:2fr 1fr 1fr 1.3fr;gap:36px}
.footer-brand .brand{color:#fff;margin-bottom:14px}
.footer-brand .brand .brand-mark{background:#fff;color:var(--brand)}
.footer-brand p{line-height:1.85;margin:0;max-width:370px;color:rgba(255,255,255,.55)}
.footer-heading{color:#fff;font-size:15px;margin:0 0 18px;font-weight:700}
.footer-links li{margin-bottom:10px}
.footer-links a{color:rgba(255,255,255,.64);transition:color .2s;padding:2px 0}
.footer-links a:hover{color:#fff;padding-left:4px}
.footer-contact li{padding-left:26px;position:relative;margin-bottom:13px;color:rgba(255,255,255,.64);line-height:1.7}
.footer-contact li::before{position:absolute;left:0;top:0;content:"";width:18px;height:18px;background:center / contain no-repeat;opacity:.8}
.footer-bottom{max-width:1260px;margin:0 auto;padding:20px;border-top:1px solid rgba(255,255,255,.08);display:flex;flex-direction:column;gap:6px;align-items:center;justify-content:center;text-align:center;color:rgba(255,255,255,.4);font-size:13px}

/* responsive */
@media (max-width:1100px){
  .header-inner{gap:10px}
  .hero-inner{grid-template-columns:1fr}
  .hero-visual{display:none}
  .metrics-grid{grid-template-columns:repeat(2,1fr)}
  .faq-layout{grid-template-columns:1fr}
  .cta-inner{grid-template-columns:1fr}
  .footer-top{grid-template-columns:1fr 1fr}
}
@media (max-width:900px){
  .site-header .main-nav{display:none}
  .nav-toggle{display:flex}
  .mobile-nav{display:none;position:absolute;top:76px;left:16px;right:16px;background:#fff;border-radius:16px;border:1px solid var(--line);box-shadow:var(--shadow-2);padding:12px;grid-gap:4px;z-index:1000}
  .mobile-nav a{display:block;padding:12px 16px;border-radius:10px;font-weight:600;color:var(--ink)}
  .mobile-nav a.active{background:var(--brand-soft);color:var(--brand)}
  .mobile-nav a:hover{background:#f4f0ea}
  .nav-toggle-input:checked ~ .mobile-nav{display:block}
  .search-wrap{width:100%;order:3}
  .header-inner{flex-wrap:wrap;height:auto;padding-top:12px;padding-bottom:10px}
  .search-wrap .h-search{width:100%}
  .brand{font-size:20px}
  .services-grid{grid-template-columns:1fr}
  .service-card:nth-child(2n),.service-card:nth-child(2n+1){margin-top:0}
  .compare-wrap{grid-template-columns:1fr}
  .cta-section{padding:54px 0}
}
@media (max-width:768px){
  .hero{padding:38px 0;min-height:auto}
  .hero-title{font-size:33px}
  .hero-chips{flex-direction:column;align-items:flex-start;gap:8px}
  .hero-actions .btn{width:100%}
  .metrics-grid{grid-template-columns:1fr 1fr}
  .metric-item{padding:20px 18px}
  .metric-num{font-size:32px}
  .section{padding:44px 0}
  .section-title{font-size:26px}
  .service-info{padding:22px 10px 22px 12px}
  .service-title{font-size:19px}
  .faq-list details{padding-left:0}
  .faq-list summary{padding-left:6px}
  .news-list{padding-left:4px}
  .news-row{flex-direction:column;gap:8px;padding:18px}
  .news-time{display:flex;align-items:center;gap:8px;min-width:0;width:fit-content}
  .contact-card{padding:24px 20px}
  .footer-top{grid-template-columns:1fr;padding-top:40px;gap:28px}
}
@media (max-width:520px){
  .header-inner{padding:10px 16px}
  .search-wrap .h-search{padding-left:12px}
  .h-search input{font-size:14px}
  .compare-body{padding:14px 16px}
  .form-grid{grid-template-columns:1fr}
  .form-field.full{grid-column:span 1}
  .metrics-grid{grid-template-columns:1fr 1fr;padding-left:0}
  .metric-num{font-size:26px}
  .metric-desc{font-size:12px}
  .contact-card{border-radius:20px}
  .site-footer .footer-bottom{flex-wrap:wrap}
}

/* roulang page: category1 */
/* ==== Design Tokens ==== */
:root {
  --primary: #B44838;
  --primary-dark: #993A2C;
  --primary-light: #D46A58;
  --secondary: #3E636B;
  --secondary-light: #527C85;
  --bg-warm: #F5F1EA;
  --bg-white: #FFFFFF;
  --bg-card: #FFFFFF;
  --bg-soft: #FBF9F5;
  --text-main: #262A2E;
  --text-sub: #5B606A;
  --text-light: #7A808A;
  --border-light: #E2DCD2;
  --border-card: #EFE9E0;
  --success: #2F7D5B;
  --danger: #B3261E;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --shadow-sm: 0 4px 12px rgba(60, 56, 48, 0.06);
  --shadow-md: 0 8px 24px rgba(60, 56, 48, 0.1);
  --shadow-lg: 0 16px 40px rgba(60, 56, 48, 0.14);
  --font-primary: "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", "Source Han Sans SC", sans-serif;
  --container-w: 1200px;
  --section-y: clamp(56px, 7vw, 92px);
  --tran-base: 0.25s ease;
}

/* ==== Reset Base ==== */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; font-size: 16px; }
body { font-family: var(--font-primary); background: var(--bg-warm); color: var(--text-main); line-height: 1.75; font-variant-numeric: tabular-nums; -webkit-font-smoothing: antialiased; }
img { max-width: 100%; display: block; object-fit: cover; }
a { color: inherit; text-decoration: none; transition: color var(--tran-base), border-color var(--tran-base), box-shadow var(--tran-base); }
ul, ol { list-style: none; }
button, input, select, textarea { font-family: inherit; font-size: inherit; border: none; outline: none; background: none; }
input:focus, textarea:focus, select:focus, button:focus { outline: none; }
.container { max-width: var(--container-w); margin: 0 auto; padding: 0 24px; }
::selection { background: rgba(180, 72, 56, 0.22); }

/* ==== Header / Navigation ==== */
.site-header { position: sticky; top: 0; z-index: 100; background: rgba(255, 255, 255, 0.94); backdrop-filter: blur(14px); border-bottom: 1px solid var(--border-card); }
.header-inner { display: flex; align-items: center; height: 76px; gap: 32px; }
.logo-area { display: flex; align-items: center; flex-shrink: 0; }
.brand { display: inline-flex; align-items: center; gap: 8px; font-size: 22px; font-weight: 800; letter-spacing: 0.5px; color: var(--text-main); }
.brand-mark { display: inline-flex; align-items: center; justify-content: center; width: 36px; height: 36px; background: var(--primary); color: #fff; font-size: 15px; font-weight: 800; border-radius: 10px; letter-spacing: 0; }
.search-box { flex: 1; max-width: 520px; margin: 0 auto; display: flex; align-items: center; height: 48px; background: #F7F4EE; border-radius: 999px; padding: 0 4px 0 16px; border: 2px solid transparent; transition: border-color var(--tran-base), background var(--tran-base), box-shadow var(--tran-base); }
.search-box:focus-within { background: #fff; border-color: var(--primary); box-shadow: 0 0 0 4px rgba(180, 72, 56, 0.15); }
.search-box svg { width: 19px; height: 19px; stroke: #6b7280; flex-shrink: 0; }
.search-box input { flex: 1; height: 100%; padding: 0 10px; font-size: 14px; color: var(--text-main); background: transparent; }
.search-box input::placeholder { color: #9DA3A7; }
.search-box .search-btn { height: 38px; padding: 0 18px; background: var(--primary); color: #fff; font-size: 14px; font-weight: 600; border-radius: 999px; cursor: pointer; transition: background var(--tran-base), transform var(--tran-base); }
.search-box .search-btn:hover { background: var(--primary-dark); transform: translateY(-1px); }
.main-nav { display: flex; align-items: center; gap: 6px; margin-left: auto; flex-shrink: 0; }
.main-nav a { position: relative; padding: 8px 14px; font-size: 15px; font-weight: 500; color: var(--text-sub); border-radius: 8px; transition: color var(--tran-base), background var(--tran-base); }
.main-nav a:hover { color: var(--primary); background: rgba(180, 72, 56, 0.06); }
.main-nav a.active { color: var(--primary); font-weight: 600; }
.main-nav a.active::after { content: ''; position: absolute; left: 14px; right: 14px; bottom: 2px; height: 3px; background: var(--primary); border-radius: 3px 3px 0 0; }
.nav-extra { display: flex; align-items: center; gap: 10px; flex-shrink: 0; margin-left: 20px; }
.btn-mini-header { padding: 8px 18px; font-size: 14px; font-weight: 600; color: var(--secondary); border: 1.5px solid var(--secondary); border-radius: 999px; transition: all var(--tran-base); cursor: pointer; }
.btn-mini-header:hover { background: var(--secondary); color: #fff; transform: translateY(-1px); box-shadow: 0 4px 10px rgba(62, 99, 107, 0.2); }
.hamburger { display: none; width: 44px; height: 44px; align-items: center; justify-content: center; border-radius: 10px; cursor: pointer; color: var(--text-main); }
.hamburger svg { width: 24px; height: 24px; }
@media (max-width: 992px) { .header-inner { flex-wrap: wrap; height: auto; min-height: 76px; padding: 10px 0; gap: 10px; } .search-box { order: 3; flex-basis: 100%; max-width: 100%; } .main-nav { margin-left: auto; } .nav-extra { display: none; } }
@media (max-width: 768px) { .hamburger { display: inline-flex; } .main-nav { display: none; position: absolute; top: 76px; left: 0; right: 0; background: #fff; flex-direction: column; padding: 12px 20px 20px; border-bottom: 1px solid var(--border-card); box-shadow: var(--shadow-md); } .main-nav.open { display: flex; } .main-nav a { width: 100%; padding: 14px 8px; font-size: 16px; } .header-inner { flex-wrap: nowrap; } .search-box { order: unset; flex: 1; min-width: 0; } .search-box input { min-width: 0; } .search-box .search-btn { padding: 0 14px; font-size: 13px; } .site-header { position: relative; } }
@media (max-width: 640px) { .brand { font-size: 19px; } .brand-mark { width: 32px; height: 32px; font-size: 13px; } .search-box { padding-left: 10px; } .search-box svg { width: 16px; } .search-box input { font-size: 13px; padding: 0 4px; } .search-box .search-btn { padding: 0 12px; font-size: 12px; } }

/* ==== Page Hero ==== */
.page-hero { position: relative; background: linear-gradient(128deg, rgba(38,42,46,0.82) 0%, rgba(60,40,32,0.68) 100%), url('/assets/images/backpic/back-2.png') center/cover; padding: clamp(56px, 8vw, 88px) 0; color: #fff; }
.page-hero-inner { max-width: 900px; }
.page-hero .hero-tag { display: inline-flex; align-items: center; gap: 8px; background: rgba(255, 255, 255, 0.16); border: 1px solid rgba(255, 255, 255, 0.24); backdrop-filter: blur(8px); padding: 8px 18px; border-radius: 999px; font-size: 14px; font-weight: 500; margin-bottom: 20px; }
.page-hero .hero-tag svg { width: 16px; height: 16px; }
.page-hero h1 { font-size: clamp(30px, 5vw, 52px); line-height: 1.2; font-weight: 800; letter-spacing: 0.5px; margin-bottom: 18px; }
.page-hero h1 .highlight { position: relative; color: #F5C7A8; }
.page-hero .hero-desc { font-size: clamp(15px, 1.6vw, 18px); line-height: 1.75; color: rgba(255, 255, 255, 0.93); max-width: 730px; }
.page-hero .hero-meta { display: flex; flex-wrap: wrap; gap: 18px; margin-top: 30px; color: rgba(255, 255, 255, 0.85); font-size: 14px; }
.hero-meta span { display: inline-flex; align-items: center; gap: 6px; }
.hero-meta svg { width: 16px; height: 16px; opacity: 0.8; }
.breadcrumb { padding: 18px 0 0; font-size: 13px; color: rgba(255, 255, 255, 0.75); display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.breadcrumb a { color: rgba(255, 255, 255, 0.85); }
.breadcrumb a:hover { color: #fff; }
.breadcrumb .sep { opacity: 0.5; }
.breadcrumb .current { color: #fff; font-weight: 500; }
@media (max-width: 768px) { .page-hero { padding: 48px 0 40px; } .page-hero .hero-meta { gap: 10px; font-size: 13px; flex-direction: column; } }

/* ==== Section Layout Common ==== */
.section { padding: var(--section-y) 0; }
.section-title-wrap { display: flex; align-items: flex-end; justify-content: space-between; gap: 28px; margin-bottom: 38px; flex-wrap: wrap; }
.section-label { display: inline-flex; align-items: center; gap: 8px; font-size: 13px; font-weight: 500; color: var(--secondary); letter-spacing: 1px; margin-bottom: 8px; }
.section-label::before { content:''; width: 22px; height: 2px; background: var(--primary); display: inline-block; }
.section-title-wrap h2 { font-size: clamp(24px, 3.2vw, 34px); line-height: 1.3; font-weight: 800; letter-spacing: 0.2px; }
.section-lead { max-width: 560px; color: var(--text-sub); font-size: 15px; }
.section-more a { display: inline-flex; align-items: center; gap: 6px; color: var(--primary); font-weight: 600; font-size: 14px; }
.section-more a:hover { gap: 10px; }
.text-btn { display: inline-flex; align-items: center; gap: 4px; font-size: 14px; font-weight: 600; color: var(--secondary); background: none; border: none; cursor: pointer; transition: gap var(--tran-base); text-align: left; padding: 4px; }
.text-btn:hover { gap: 8px; color: var(--primary); }

/* ==== Overview / Guide Intro two-column ==== */
.guide-intro-section { background: var(--bg-white); border-bottom: 1px solid var(--border-card); }
.split-layout { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: clamp(28px, 4vw, 56px); align-items: center; }
.text-block .eyebrow { font-size: 14px; font-weight: 600; color: var(--primary); display: inline-flex; align-items: center; gap: 6px; margin-bottom: 12px; letter-spacing: 0.5px; }
.text-block h2 { font-size: clamp(22px, 2.6vw, 32px); line-height: 1.3; font-weight: 800; margin-bottom: 18px; }
.text-block p { color: var(--text-sub); font-size: 15px; line-height: 1.9; }
.feature-list { margin-top: 22px; display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.feature-list li { font-size: 14px; color: var(--text-main); display: flex; gap: 10px; align-items: flex-start; line-height: 1.5; }
.feature-list li svg { width: 18px; height: 18px; flex-shrink: 0; margin-top: 3px; color: var(--success); stroke-width: 2; }
.media-card { border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-md); position: relative; }
.media-card img { width: 100%; aspect-ratio: 4/3; object-fit: cover; }
.media-card .media-caption { position: absolute; bottom: 0; left: 0; right: 0; background: linear-gradient(to top, rgba(0,0,0,0.68), transparent); color: #fff; padding: 40px 18px 14px; font-size: 13px; }
@media (max-width: 880px) { .split-layout { grid-template-columns: 1fr; } .feature-list { grid-template-columns: 1fr; } }

/* ==== Guide Directory Cards ==== */
.guide-directory { background: var(--bg-warm); }
.dir-grid { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(20px, 3vw, 32px); }
.guide-card { display: flex; gap: 24px; background: #fff; border-radius: var(--radius-lg); padding: 28px; border: 1px solid var(--border-card); box-shadow: var(--shadow-sm); transition: transform var(--tran-base), box-shadow var(--tran-base), border-color var(--tran-base); position: relative; overflow: hidden; align-items: flex-start; }
.guide-card::after { content: ''; position: absolute; top: 0; left: 0; bottom: 0; width: 4px; background: var(--primary); opacity: 0; transition: opacity var(--tran-base); }
.guide-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: rgba(180,72,56,0.2); }
.guide-card:hover::after { opacity: 1; }
.guide-card .card-num { font-size: 40px; font-weight: 300; color: rgba(180,72,56,0.25); line-height: 1; margin-right: 4px; flex-shrink: 0; font-variant-numeric: tabular-nums; min-width: 48px; text-align: right; }
.guide-card-body { flex: 1; }
.guide-card-body .topic-tag { display: inline-block; font-size: 12px; font-weight: 600; color: var(--secondary); background: rgba(62,99,107,0.13); border-radius: 999px; padding: 5px 14px; letter-spacing: 0.4px; margin-bottom: 12px; }
.guide-card-body h3 { font-size: 19px; font-weight: 700; margin-bottom: 10px; color: var(--text-main); letter-spacing: 0.2px; }
.guide-card-body p { font-size: 14px; color: var(--text-sub); line-height: 1.8; margin-bottom: 16px; }
.card-meta { display: flex; justify-content: space-between; align-items: center; font-size: 13px; color: var(--text-light); border-top: 1px solid #F1EBE2; padding-top: 12px; margin-top: auto; }
.card-meta .meta-item { display: flex; align-items: center; gap: 5px; }
.card-meta svg { width: 14px; height: 14px; }

/* ==== Process Steps (Long Vertical Timeline) ==== */
.process-section { background: var(--bg-white); border-top: 1px solid var(--border-card); border-bottom: 1px solid var(--border-card); }
.steps-wrap { max-width: 900px; margin: 0 auto; position: relative; padding-left: 0; }
.step-item { position: relative; display: grid; grid-template-columns: 72px 120px 1fr; gap: 22px; padding-bottom: 48px; }
.step-item:last-child { padding-bottom: 0; }
.step-item:not(:last-child)::before { content: ''; position: absolute; top: 72px; left: 24px; width: 2px; height: calc(100% - 90px); background: #E3DEDA; }
.step-number { width: 48px; height: 48px; background: var(--bg-warm); border: 1px solid var(--border-card); border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 15px; font-weight: 800; color: var(--secondary); z-index: 2; transition: background var(--tran-base), color var(--tran-base), border-color var(--tran-base); }
.step-item:hover .step-number { background: var(--primary); color: #fff; border-color: var(--primary); }
.step-cat { font-size: 14px; font-weight: 700; color: var(--text-main); padding-top: 12px; line-height: 1.4; }
.step-content { padding-top: 0; }
.step-content h3 { font-size: 18px; font-weight: 700; color: var(--text-main); margin-bottom: 10px; line-height: 1.45; }
.step-content p { font-size: 14.5px; color: var(--text-sub); line-height: 1.85; }
.step-content .note { display: inline-flex; align-items: center; gap: 10px; background: #F9F6F0; border-left: 3px solid var(--primary); padding: 10px 16px; margin-top: 12px; font-size: 13.5px; color: var(--text-sub); border-radius: 0 8px 8px 0; flex-wrap: wrap; }
.step-content .note strong { color: var(--text-main); font-weight: 600; }
@media (max-width: 768px) { .step-item { grid-template-columns: 52px 1fr; gap: 12px 16px; } .step-item::before { left: 17px; } .step-number { width: 36px !important; height: 36px !important; font-size: 13px !important; } .step-cat { grid-column: 2; padding-top: 0; margin-top: -6px; font-size: 13px; } .step-content { grid-column: 1 / -1; padding: 0 0 0 8px; } }

/* ==== Tips Sidebar Layout ==== */
.tips-layout { display: grid; grid-template-columns: 2fr 1fr; gap: 32px; align-items: start; }
.main-column { display: flex; flex-direction: column; gap: 24px; }
.tips-column { position: sticky; top: 100px; background: #fff; border: 1px solid var(--border-card); border-radius: var(--radius-lg); padding: 26px; box-shadow: var(--shadow-sm); }
.tips-column h4 { font-size: 17px; font-weight: 700; margin-bottom: 18px; display: flex; align-items: center; gap: 8px; }
.tips-column h4 svg { width: 18px; height: 18px; color: var(--primary); }
.tips-list { display: flex; flex-direction: column; gap: 16px; }
.tips-list .tip { display: flex; gap: 12px; padding: 12px 0; border-bottom: 1px dashed #F0E9DF; align-items: flex-start; }
.tips-list .tip:last-child { border-bottom: 0; }
.tip-icon { width: 28px; height: 28px; background: rgba(180,72,56,0.1); border-radius: 8px; display: flex; align-items: center; flex-shrink: 0; }
.tip-icon svg { width: 15px; height: 15px; margin: 0 auto; color: var(--primary); }
.tip-content { font-size: 13.5px; line-height: 1.7; color: var(--text-sub); }
.tip-content strong { display: block; font-size: 14.5px; color: var(--text-main); font-weight: 600; margin-bottom: 4px; }
@media (max-width: 992px) { .tips-layout { grid-template-columns: 1fr; } .tips-column { position: static; } }

/* ==== Small Feature Cards / highlight ==== */
.highlights-section { background: var(--bg-warm); }
.hl-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin-bottom: 40px; }
.hl-card { background: #fff; padding: 28px; border-radius: var(--radius-lg); border: 1px solid var(--border-card); box-shadow: var(--shadow-sm); text-align: center; transition: transform var(--tran-base), box-shadow var(--tran-base); }
.hl-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.hl-icon { width: 50px; height: 50px; border-radius: 14px; background: rgba(62, 99, 107, 0.1); display: flex; align-items: center; justify-content: center; margin: 0 auto 14px; color: var(--secondary); }
.hl-icon svg { width: 24px; height: 24px; }
.hl-card h3 { font-size: 17px; font-weight: 700; margin-bottom: 8px; }
.hl-card p { font-size: 14px; color: var(--text-sub); line-height: 1.75; }
@media (max-width: 992px) { .hl-grid { grid-template-columns: 1fr; max-width: 560px; margin: 0 auto 32px; } }

/* ==== FAQ ==== */
.faq-section { background: var(--bg-white); }
.faq-layout { display: grid; grid-template-columns: 1fr 1.8fr; gap: 40px; align-items: start; }
.faq-left-title { position: sticky; top: 100px; }
.faq-info { margin-top: 24px; background: var(--bg-warm); border-radius: var(--radius-lg); padding: 26px; border: 1px solid var(--border-card); }
.faq-info h4 { font-size: 16px; margin-bottom: 8px; }
.faq-info p { font-size: 14px; color: var(--text-sub); line-height: 1.8; }
.faq-help-link { display: inline-block; color: var(--primary); font-weight: 600; margin-bottom: 12px; font-size: 14px; margin-top: 6px; }
.faq-list { display: flex; flex-direction: column; border-radius: var(--radius-lg); overflow: hidden; }
.faq-item { border-bottom: 1px solid #EBE5DA; position: relative; background: #fff; transition: background 0.3s ease; margin-bottom: -1px 0; }
.faq-item:last-child { border-bottom: 0; }
.faq-question { width: 100%; padding: 22px 50px 22px 18px; text-align: left; font-size: 16px; font-weight: 500; color: var(--text-main); cursor: pointer; position: relative; min-height: 44px; font-family: var(--font-primary); border: none; background: transparent; line-height: 1.5; }
.faq-question:hover { color: var(--primary); }
.faq-item.active .faq-question { color: var(--primary); font-weight: 600; border-left: 3px solid var(--primary); background: rgba(180,72,56,0.025); }
.faq-arrow { position: absolute; right: 18px; top: 50%; transform: translateY(-50%); width: 20px; height: 20px; transition: transform var(--tran-base); opacity: 0.6; }
.faq-item.active .faq-arrow { transform: translateY(-50%) rotate(180deg); color: var(--primary); opacity: 1; }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height 0.4s ease-in-out; background: rgba(255,255,255,0.4); padding-left: 18px; padding-right: 24px; }
.faq-answer-inner { padding: 0 0 20px; font-size: 14.5px; color: var(--text-sub); line-height: 1.85; }
@media (max-width: 992px) { .faq-layout { grid-template-columns: 1fr; } .faq-left-title { position: static; } }

/* ==== CTA ==== */
.cta-section { background: linear-gradient(160deg, var(--primary-dark) 0%, #7A2E25 100%); padding: clamp(52px, 7vw, 80px) 0; color: #fff; text-align: center; }
.cta-wrap { max-width: 760px; margin: 0 auto; }
.cta-wrap .cta-icon { width: 60px; height: 60px; border-radius: 16px; background: rgba(255,255,255,0.16); display: flex; align-items: center; justify-content: center; margin: 0 auto 22px; border: 1px solid rgba(255,255,255,0.2); }
.cta-wrap .cta-icon svg { width: 26px; height: 26px; }
.cta-wrap h2 { font-size: clamp(24px, 3.4vw, 34px); font-weight: 800; margin-bottom: 14px; letter-spacing: 1px; }
.cta-wrap p { font-size: 15px; color: rgba(255,255,255,0.85); max-width: 620px; margin: 0 auto 14px; line-height: 1.8; }
.cta-buttons { display: flex; justify-content: center; gap: 16px; margin-top: 30px; flex-wrap: wrap; }
.btn-primary { background: #fff; color: var(--primary-dark); font-weight: 700; border-radius: 999px; padding: 14px 32px; font-size: 15px; display: inline-flex; align-items: center; gap: 8px; border: none; cursor: pointer; transition: transform var(--tran-base), box-shadow var(--tran-base), background var(--tran-base); box-shadow: 0 2px 10px rgba(0,0,0,0.1); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 20px rgba(0,0,0,0.18); }
.btn-outline-light { background: transparent; color: #fff; font-weight: 600; padding: 14px 28px; border: 2px solid rgba(255,255,255,0.7); border-radius: 999px; font-size: 15px; display: inline-flex; align-items: center; gap: 8px; cursor: pointer; transition: background var(--tran-base), border-color var(--tran-base), color var(--tran-base); }
.btn-outline-light:hover { background: rgba(255,255,255,0.2); border-color: #fff; }

/* ==== Footer ==== */
.site-footer { background: #23272A; color: #BCC1C6; }
.footer-top { display: grid; grid-template-columns: 2fr 1fr 1fr 1.4fr; gap: 32px; padding: 64px 0 40px; }
.footer-brand p { color: #8D959B; font-size: 14px; max-width: 300px; line-height: 1.8; margin-top: 14px; }
.footer-heading { font-size: 15px; font-weight: 700; margin-bottom: 18px; color: #EBEDEE; letter-spacing: 0.5px; position: relative; padding-bottom: 12px; }
.footer-heading::after { content: ''; position: absolute; left: 0; bottom: 0; width: 26px; height: 2px; background: var(--primary); }
.footer-links { display: flex; flex-direction: column; gap: 12px; }
.footer-links a { font-size: 14px; color: #A1A7AD; transition: color var(--tran-base), padding-left var(--tran-base); }
.footer-links a:hover { color: #E9E5DF; padding-left: 6px; }
.footer-contact { display: flex; flex-direction: column; gap: 14px; font-size: 14px; color: #A1A7AD; line-height: 1.7; }
.footer-bottom { border-top: 1px solid #353B3F; padding: 20px 0 28px; display: flex; flex-direction: column; align-items: center; gap: 10px; font-size: 12.5px; color: #868C91; text-align: center; }
@media (max-width: 992px) { .footer-top { grid-template-columns: 1fr 1fr; gap: 32px 24px; } }
@media (max-width: 768px) { .footer-top { grid-template-columns: 1fr; gap: 32px; } }

/* ==== UI general ==== */
.badge { display: inline-block; padding: 4px 12px; border-radius: 999px; font-size: 12px; font-weight: 500; background: #E8F0F0; color: #35646C; line-height: 1.5; }
.badge-primary { background: rgba(180, 72, 56, 0.12); color: #A04A32; }
.divider { height: 1px; background: var(--border-card); border: 0; }
::selection { background: rgba(180, 72, 56, 0.2); }
a:focus-visible, button:focus-visible, .faq-question:focus-visible, .search-btn:focus-visible { outline: 3px solid rgba(180, 72, 56, 0.5); outline-offset: 2px; }

/* roulang page: article */
:root {
  --primary: #B44838;
  --primary-dark: #9C3D30;
  --primary-soft: rgba(180, 72, 56, 0.08);
  --secondary: #3E636B;
  --secondary-soft: rgba(62, 99, 107, 0.1);
  --paper: #F5F1EA;
  --surface: #FFFFFF;
  --surface-soft: #F9F7F3;
  --ink: #262A2E;
  --muted: #5B606A;
  --light-muted: #878A90;
  --line: #E2DCD2;
  --card-line: #EFE9E0;
  --success: #2F7D5B;
  --error: #B3261E;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --shadow-xs: 0 1px 2px rgba(60, 56, 48, 0.04);
  --shadow-sm: 0 4px 12px rgba(60, 56, 48, 0.06);
  --shadow-md: 0 10px 24px rgba(60, 56, 48, 0.08);
  --shadow-lg: 0 20px 44px rgba(60, 56, 48, 0.11);
  --spacer: clamp(56px, 7vw, 92px);
}

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

body {
  font-family: "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", "Source Han Sans SC", sans-serif;
  font-size: 16px;
  line-height: 1.75;
  color: var(--ink);
  background: var(--paper);
  font-variant-numeric: tabular-nums;
  text-rendering: optimizeLegibility;
}

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

a {
  color: inherit;
  text-decoration: none;
  transition: color 0.2s ease;
}

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

button {
  cursor: pointer;
  background: none;
  border: none;
}

ol,
ul {
  list-style: none;
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.section-block {
  padding: clamp(48px, 6vw, 84px) 0;
}

.section-head {
  display: flex;
  align-items: flex-end;
  gap: 20px;
  margin-bottom: 32px;
}

.section-eyebrow {
  color: var(--primary);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.12em;
  margin-bottom: 4px;
}

.section-title {
  font-size: clamp(26px, 3vw, 36px);
  line-height: 1.3;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.section-link {
  margin-left: auto;
  color: var(--secondary);
  font-weight: 500;
  white-space: nowrap;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.section-link i {
  font-style: normal;
  transition: transform 0.25s ease;
}

.section-link:hover {
  color: var(--primary);
}

.section-link:hover i {
  transform: translateX(4px);
}

/* header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 60;
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(226, 220, 210, 0.7);
  box-shadow: 0 1px 14px rgba(38, 42, 46, 0.03);
}

.header-inner {
  display: flex;
  align-items: center;
  gap: 18px;
  min-height: 76px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.brand-mark {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: var(--primary);
  color: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 18px;
  letter-spacing: -0.04em;
  box-shadow: 0 6px 16px rgba(180, 72, 56, 0.3);
}

.brand-text {
  font-size: 21px;
  font-weight: 700;
  letter-spacing: -0.02em;
  white-space: nowrap;
}

.header-search {
  position: relative;
  width: clamp(240px, 38vw, 480px);
  margin-left: 8px;
  display: flex;
  align-items: center;
  background: var(--paper);
  border-radius: 999px;
  border: 1.5px solid transparent;
  transition: border-color 0.2s ease, background 0.2s ease, box-shadow 0.2s ease;
}

.header-search:focus-within {
  background: var(--surface);
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(180, 72, 56, 0.13);
}

.header-search svg {
  width: 19px;
  height: 19px;
  stroke: var(--muted);
  margin-left: 16px;
  flex-shrink: 0;
}

.header-search input {
  flex: 1;
  min-width: 0;
  height: 46px;
  border: 0;
  background: transparent;
  outline: none;
  padding: 0 12px 0 10px;
  font-size: 14.5px;
}

.header-search input::placeholder {
  color: #989291;
}

.search-submit {
  height: 36px;
  padding: 0 20px;
  border-radius: 999px;
  background: var(--primary);
  color: #fff;
  font-weight: 600;
  font-size: 14px;
  margin-right: 5px;
  transition: background 0.2s ease, box-shadow 0.2s ease;
}

.search-submit:hover {
  background: var(--primary-dark);
  box-shadow: 0 4px 10px rgba(180, 72, 56, 0.2);
}

.header-nav {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-left: auto;
}

.header-nav a {
  display: inline-flex;
  align-items: center;
  height: 40px;
  padding: 0 15px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 500;
  color: var(--muted);
  transition: all 0.2s ease;
}

.header-nav a:hover {
  color: var(--primary);
  background: var(--primary-soft);
}

.header-nav a.active {
  color: var(--primary);
  background: var(--primary-soft);
  font-weight: 600;
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: var(--surface);
  align-items: center;
  justify-content: center;
  gap: 4px;
  flex-direction: column;
  margin-left: auto;
}

.nav-toggle span {
  width: 18px;
  height: 2px;
  background: var(--ink);
  border-radius: 4px;
  display: block;
}

.mobile-menu {
  display: none;
  border-top: 1px solid var(--line);
  background: var(--surface);
  padding: 14px 20px 22px;
  gap: 6px;
  flex-direction: column;
}

.mobile-menu a {
  display: block;
  padding: 12px 14px;
  border-radius: 10px;
  color: var(--ink);
  font-weight: 500;
}

.mobile-menu a + a {
  margin-top: 2px;
}

.mobile-menu a:hover {
  background: var(--paper);
}

.mobile-menu a.active {
  color: var(--primary);
  background: var(--primary-soft);
}

/* breadcrumb */
.breadcrumb-wrap {
  padding-top: 28px;
  padding-bottom: 8px;
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  font-size: 13.5px;
  color: var(--muted);
}

.breadcrumb li {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.breadcrumb li + li::before {
  content: "/";
  color: var(--light-muted);
  margin: 0 6px 0 2px;
  font-size: 12px;
}

.breadcrumb a {
  color: var(--secondary);
  font-weight: 500;
}

.breadcrumb a:hover {
  color: var(--primary);
}

.breadcrumb li[aria-current="page"] {
  color: var(--muted);
  max-width: 480px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  padding-right: 2px;
}

/* article page */
.article-main {
  padding-bottom: clamp(48px, 6vw, 80px);
}

.article-paper-wrap {
  padding-top: 8px;
  padding-bottom: 8px;
}

.article-paper {
  background: var(--surface);
  border: 1px solid var(--card-line);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-sm);
  padding: clamp(28px, 4vw, 56px);
  position: relative;
  overflow: hidden;
}

.article-paper::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 6px;
  background: linear-gradient(90deg, var(--primary) 0%, var(--primary) 42%, var(--secondary) 100%);
}

.article-head {
  max-width: 860px;
  margin: 0 auto 34px;
  text-align: left;
}

.article-kicker {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  font-weight: 600;
  color: var(--primary);
  background: var(--primary-soft);
  border-radius: 99px;
  padding: 5px 13px;
  margin-bottom: 18px;
}

.article-title {
  font-size: clamp(28px, 4vw, 42px);
  line-height: 1.26;
  font-weight: 700;
  letter-spacing: -0.03em;
  margin-bottom: 20px;
  overflow-wrap: break-word;
  word-break: break-word;
}

.article-meta-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px;
  color: var(--light-muted);
  font-size: 14px;
}

.meta-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.meta-item svg {
  width: 16px;
  height: 16px;
  stroke: var(--light-muted);
}

.meta-divider {
  width: 1px;
  height: 13px;
  background: var(--line);
}

.article-body {
  max-width: 780px;
  margin: 0 auto;
  padding-top: 26px;
  border-top: 1px solid var(--line);
  color: #30343A;
  font-size: 16px;
  line-height: 1.9;
}

.article-body p {
  margin: 0 0 1.5em;
}

.article-body h2,
.article-body h3,
.article-body h4 {
  color: var(--ink);
  line-height: 1.45;
  margin: 1.5em 0 0.7em;
}

.article-body h2 {
  font-size: 24px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line);
}

.article-body h3 {
  font-size: 20px;
}

.article-body ul,
.article-body ol {
  margin: 0 0 1.6em;
  padding-left: 1.4em;
}

.article-body ul li {
  list-style: disc;
  margin-bottom: 0.4em;
}

.article-body ol li {
  list-style: decimal;
  margin-bottom: 0.4em;
}

.article-body blockquote {
  margin: 1.6em 0;
  padding: 14px 20px;
  border-left: 4px solid var(--primary);
  background: var(--paper);
  border-radius: 0 12px 12px 0;
  color: var(--muted);
  font-style: normal;
}

.article-body a {
  color: var(--primary);
  border-bottom: 1px solid rgba(180, 72, 56, 0.3);
}

.article-body a:hover {
  color: var(--primary-dark);
  border-bottom-color: var(--primary);
}

.article-body img {
  border-radius: 16px;
  margin: 1.8em auto;
}

.article-body code {
  background: var(--paper);
  border-radius: 6px;
  padding: 2px 6px;
  font-size: 0.92em;
}

.article-body pre {
  background: #1E2226;
  color: #E8EAED;
  border-radius: 14px;
  padding: 20px;
  overflow: auto;
  margin: 1.6em 0;
  line-height: 1.7;
}

.article-end-note {
  max-width: 780px;
  margin: 26px auto 0;
  border-radius: 14px;
  background: var(--paper);
  border: 1px solid var(--line);
  padding: 18px 20px;
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 14.5px;
  color: var(--muted);
}

.article-end-note svg {
  width: 24px;
  height: 24px;
  stroke: var(--primary);
  flex-shrink: 0;
}

/* missing state */
.missing-card {
  max-width: 720px;
  margin: 40px auto;
  text-align: center;
  padding: 56px 24px;
}

.missing-card svg {
  width: 60px;
  height: 60px;
  stroke: var(--light-muted);
  margin: 0 auto 18px;
}

.missing-card h1 {
  font-size: 30px;
  margin-bottom: 12px;
}

.missing-card p {
  color: var(--muted);
  margin-bottom: 26px;
  font-size: 15px;
}

/* buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 46px;
  padding: 0 26px;
  border-radius: 10px;
  font-size: 15px;
  font-weight: 600;
  border: 1px solid transparent;
  transition: all 0.2s ease;
  white-space: nowrap;
}

.btn-primary {
  background: var(--primary);
  color: #fff;
  border-color: rgba(130, 44, 34, 0.35);
}

.btn-primary:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(180, 72, 56, 0.26);
  color: #fff;
}

.btn-secondary {
  background: transparent;
  color: var(--secondary);
  border-color: rgba(62, 99, 107, 0.5);
}

.btn-secondary:hover {
  background: var(--secondary-soft);
  border-color: var(--secondary);
}

.btn-block {
  width: 100%;
}

/* related */
.related-section {
  background: var(--paper);
  padding: clamp(34px, 5vw, 64px) 0;
}

.related-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 28px;
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

.related-card {
  background: var(--surface);
  border: 1px solid var(--card-line);
  border-radius: 18px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
  box-shadow: var(--shadow-xs);
}

.related-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: rgba(180, 72, 56, 0.28);
}

.related-media {
  aspect-ratio: 16 / 7.6;
  overflow: hidden;
  background: var(--paper);
}

.related-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.related-card:hover .related-media img {
  transform: scale(1.04);
}

.related-body {
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  flex: 1;
}

.related-label {
  align-self: flex-start;
  font-size: 12px;
  background: var(--primary-soft);
  color: var(--primary);
  border-radius: 999px;
  padding: 3px 10px;
  font-weight: 600;
}

.related-card h3 {
  font-size: 17px;
  line-height: 1.5;
  font-weight: 600;
}

.related-card p {
  font-size: 14px;
  color: var(--muted);
  flex: 1;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.related-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--secondary);
  font-weight: 600;
  font-size: 14px;
  padding-top: 10px;
  border-top: 1px solid var(--line);
}

.related-link i {
  font-style: normal;
  transition: transform 0.2s ease;
}

.related-card:hover .related-link i {
  transform: translateX(5px);
}

.related-return {
  text-align: center;
  margin-top: 30px;
  color: var(--muted);
  font-size: 14px;
}

.related-return a {
  color: var(--secondary);
  font-weight: 500;
  margin-left: 4px;
}

.related-return a:hover {
  color: var(--primary);
}

/* cta strip */
.article-cta {
  background: #23272A;
  padding: clamp(36px, 5vw, 64px) 0;
}

.cta-strip {
  position: relative;
  background: var(--secondary);
  border-radius: 24px;
  padding: 40px;
  overflow: hidden;
  color: #fff;
}

.cta-strip::after {
  content: "";
  position: absolute;
  width: 260px;
  height: 260px;
  border-radius: 50%;
  right: -90px;
  top: -90px;
  background: rgba(255, 255, 255, 0.12);
}

.cta-inner {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 28px;
  position: relative;
  z-index: 2;
}

.cta-copy h2 {
  font-size: clamp(22px, 3vw, 30px);
  font-weight: 700;
  margin-bottom: 10px;
}

.cta-copy p {
  color: rgba(255, 255, 255, 0.85);
  font-size: 15px;
}

.cta-actions {
  margin-left: auto;
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.cta-actions .btn {
  background: #fff;
  color: var(--secondary);
  border-color: #fff;
}

.cta-actions .btn:hover {
  background: var(--paper);
}

.cta-actions .btn-ghost {
  background: transparent;
  color: #fff;
  border-color: rgba(255, 255, 255, 0.6);
}

.cta-actions .btn-ghost:hover {
  background: rgba(255, 255, 255, 0.12);
}

/* footer */
.site-footer {
  background: #23272A;
  color: rgba(255, 255, 255, 0.76);
  padding: 68px 0 0;
  font-size: 14.5px;
}

.site-footer a {
  color: rgba(255, 255, 255, 0.76);
  transition: color 0.2s ease;
}

.site-footer a:hover {
  color: #fff;
  text-decoration: none;
}

.footer-top {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px 48px;
  display: grid;
  grid-template-columns: 2fr 1fr 1.2fr 1.3fr;
  gap: 40px;
}

.footer-brand {
  margin-right: 28px;
}

.footer-brand p {
  max-width: 340px;
  line-height: 1.8;
  margin-top: 18px;
  color: rgba(255, 255, 255, 0.6);
}

.footer-heading {
  color: #fff;
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 18px;
  padding-top: 4px;
}

.footer-links,
.footer-contact {
  display: flex;
  flex-direction: column;
  gap: 10px;
  font-size: 14px;
}

.footer-links a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.footer-links a::before {
  content: "";
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--primary);
  opacity: 0.7;
}

.footer-contact li {
  display: flex;
  gap: 8px;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.62);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding: 22px 20px;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
  max-width: 1200px;
  margin: 0 auto;
  color: rgba(255, 255, 255, 0.44);
  font-size: 12.5px;
}

.footer-bottom span + span::before {
  content: "·";
  margin: 0 10px;
}

/* responsive */
@media (max-width: 1080px) {
  .header-nav a {
    padding: 0 10px;
    font-size: 14px;
  }

  .header-search {
    width: 36vw;
  }
}

@media (max-width: 920px) {
  .header-nav {
    display: none;
  }

  .nav-toggle {
    display: inline-flex;
  }

  .header-search {
    width: auto;
    flex: 1;
    max-width: 440px;
  }

  .header-search input {
    min-width: 0;
  }

  .header-inner {
    flex-wrap: nowrap;
  }

  .search-submit {
    display: none;
  }
}

@media (max-width: 768px) {
  .nav-toggle {
    display: inline-flex;
  }

  .header-inner {
    flex-wrap: wrap;
    gap: 10px;
    padding-top: 10px;
    padding-bottom: 10px;
    min-height: 0;
  }

  .brand-text {
    font-size: 19px;
  }

  .header-search {
    order: 3;
    width: 100%;
    flex-basis: 100%;
    max-width: none;
  }

  .header-search input {
    height: 44px;
  }

  .breadcrumb-wrap {
    padding-top: 20px;
  }

  .breadcrumb li[aria-current="page"] {
    max-width: 220px;
  }

  .article-paper {
    border-radius: 16px;
    padding: 16px 18px 30px;
  }

  .article-title {
    font-size: clamp(21px, 6vw, 28px);
  }

  .article-body {
    font-size: 15.5px;
    line-height: 1.85;
    padding-top: 18px;
  }

  .article-body h2 {
    font-size: 20px;
  }

  .article-body h3 {
    font-size: 18px;
  }

  .article-meta-row {
    gap: 10px;
    font-size: 13px;
  }

  .meta-divider {
    display: none;
  }

  .related-grid {
    grid-template-columns: 1fr;
  }

  .related-head {
    flex-direction: column;
    align-items: flex-start;
  }

  .section-head {
    flex-wrap: wrap;
  }

  .section-link {
    margin-left: 0;
  }

  .cta-strip {
    padding: 26px 20px;
  }

  .cta-actions {
    margin-left: 0;
  }

  .cta-actions .btn {
    flex: 1;
  }

  .footer-top {
    grid-template-columns: 1fr 1fr;
    gap: 36px 24px;
    padding-bottom: 36px;
  }

  .footer-brand {
    grid-column: 1 / -1;
  }

  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
    padding: 18px 20px;
  }

  .footer-bottom span + span::before {
    display: none;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 16px;
  }

  .brand-mark {
    width: 36px;
    height: 36px;
    font-size: 16px;
    border-radius: 10px;
  }

  .brand-text {
    font-size: 18px;
  }

  .header-search svg {
    margin-left: 12px;
  }

  .header-search input {
    padding-left: 6px;
    font-size: 13.5px;
  }

  .article-paper {
    border-radius: 12px;
    padding: 14px 16px 26px;
  }

  .article-kicker {
    font-size: 12px;
    margin-bottom: 14px;
  }

  .article-end-note {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }

  .related-body {
    padding: 18px;
  }

  .cta-strip {
    border-radius: 16px;
  }

  .cta-actions .btn {
    flex-basis: 100%;
  }

  .footer-top {
    grid-template-columns: 1fr;
  }

  .footer-brand {
    grid-column: auto;
    margin-right: 0;
  }
}

/* roulang page: category2 */
:root {
  --c-primary: #B44838;
  --c-primary-dark: #96372B;
  --c-primary-deep: #7E2D25;
  --c-secondary: #3E636B;
  --c-secondary-dark: #2C4A52;
  --c-bg: #F5F1EA;
  --c-surface: #FFFFFF;
  --c-ink: #262A2E;
  --c-muted: #5B606A;
  --c-line: #E2DCD2;
  --c-edge: #EFE9E0;
  --c-success: #2F7D5B;
  --c-warn: #A96A2C;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-pill: 999px;
  --shadow-sm: 0 4px 12px rgba(60, 56, 48, 0.06);
  --shadow-md: 0 12px 24px rgba(60, 56, 48, 0.10);
  --shadow-focus: 0 0 0 3px rgba(180, 72, 56, 0.18);
  --font-main: "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", "Source Han Sans SC", sans-serif;
}

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-main);
  background-color: var(--c-bg);
  color: var(--c-ink);
  line-height: 1.7;
  font-size: 16px;
  font-variant-numeric: tabular-nums;
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: inherit;
  text-decoration: none;
}

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

ul,
ol {
  list-style: none;
}

.container {
  width: min(1200px, 100% - 40px);
  margin-inline: auto;
}

/* ===== header ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--c-line);
}

.header-inner {
  height: 76px;
  display: flex;
  align-items: center;
  gap: 20px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
  font-weight: 700;
  font-size: 21px;
  letter-spacing: .3px;
  color: var(--c-ink);
}

.brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 42px;
  height: 42px;
  padding: 0 8px;
  border-radius: 12px;
  background: var(--c-primary);
  color: #fff;
  font-size: 14px;
  font-weight: 800;
  letter-spacing: 0.5px;
}

.header-search {
  display: flex;
  align-items: center;
  flex: 1;
  max-width: 520px;
  min-width: 220px;
  margin-left: 16px;
  background: #F7F4EE;
  border: 1px solid transparent;
  border-radius: var(--radius-pill);
  height: 48px;
  padding: 4px 4px 4px 16px;
  transition: border-color .2s, box-shadow .2s, background .2s;
}

.header-search:focus-within {
  background: var(--c-surface);
  border-color: var(--c-primary);
  box-shadow: 0 0 0 2px rgba(180, 72, 56, 0.16);
}

.search-icon {
  width: 20px;
  height: 20px;
  color: var(--c-muted);
  flex-shrink: 0;
}

.header-search input {
  flex: 1;
  min-width: 0;
  border: 0;
  outline: 0;
  background: transparent;
  padding: 0 10px;
  color: var(--c-ink);
}

.header-search input::placeholder {
  color: #9A9AA0;
}

.header-search button {
  height: 38px;
  padding: 0 18px;
  background: var(--c-primary);
  color: #fff;
  border: 0;
  border-radius: var(--radius-pill);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: background .2s, transform .2s;
}

.header-search button:hover {
  background: var(--c-primary-dark);
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-left: auto;
  flex-shrink: 0;
}

.main-nav a {
  display: inline-flex;
  align-items: center;
  height: 40px;
  padding: 0 15px;
  font-size: 15px;
  font-weight: 500;
  color: var(--c-ink);
  border-radius: var(--radius-pill);
  transition: background .2s, color .2s;
}

.main-nav a:hover {
  background: #F3EEE6;
  color: var(--c-primary-dark);
}

.main-nav a.active {
  background: rgba(180, 72, 56, 0.10);
  color: var(--c-primary-dark);
  font-weight: 600;
}

.nav-toggle {
  display: none;
  border: 0;
  background: transparent;
  width: 40px;
  height: 40px;
  border-radius: 10px;
  cursor: pointer;
  color: var(--c-ink);
}

.nav-toggle:hover {
  background: #F3EEE6;
}

.nav-toggle svg {
  width: 22px;
  height: 22px;
}

/* ===== buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 44px;
  padding: 0 26px;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  font-size: 15px;
  font-weight: 600;
  white-space: nowrap;
  cursor: pointer;
  transition: transform .2s, box-shadow .2s, background .2s, border-color .2s, color .2s;
}

.btn:focus-visible,
.header-search button:focus-visible,
.main-nav a:focus-visible,
a:focus-visible {
  outline: 2px solid var(--c-secondary);
  outline-offset: 3px;
}

.btn-primary {
  background: var(--c-primary);
  border-color: var(--c-primary-deep);
  color: #fff;
  box-shadow: 0 6px 16px rgba(180, 72, 56, 0.22);
}

.btn-primary:hover {
  background: var(--c-primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 10px 24px rgba(180, 72, 56, 0.28);
}

.btn-primary:active {
  transform: translateY(0);
  box-shadow: none;
}

.btn-outline {
  border-color: rgba(255, 255, 255, 0.65);
  color: #fff;
  background: transparent;
}

.btn-outline:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: #fff;
  transform: translateY(-2px);
}

.btn-secondary {
  background: transparent;
  border-color: var(--c-secondary);
  color: var(--c-secondary);
}

.btn-secondary:hover {
  background: rgba(62, 99, 107, 0.08);
  color: var(--c-secondary-dark);
}

/* ===== badge / label ===== */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  height: 28px;
  padding: 0 12px;
  border-radius: var(--radius-pill);
  font-size: 13px;
  font-weight: 600;
  background: #F2EDE5;
  color: var(--c-muted);
  white-space: nowrap;
}

.badge-warn {
  background: rgba(169, 106, 44, 0.12);
  color: var(--c-warn);
}

.badge-cool {
  background: rgba(62, 99, 107, 0.10);
  color: var(--c-secondary);
}

.badge-light {
  background: rgba(255, 255, 255, 0.16);
  color: #fff;
}

/* ===== page hero ===== */
.safety-hero {
  background-color: #393A38;
  background-image: linear-gradient(115deg, rgba(54, 47, 44, 0.96) 0%, rgba(72, 68, 60, 0.88) 55%, rgba(46, 76, 77, 0.70) 100%), url("/assets/images/backpic/back-1.png");
  background-size: cover;
  background-position: center;
  color: #fff;
  padding: clamp(54px, 7vw, 104px) 0 clamp(48px, 6vw, 88px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.68);
  margin-bottom: 32px;
}

.breadcrumb a {
  color: rgba(255, 255, 255, 0.8);
}

.breadcrumb a:hover {
  color: #fff;
}

.hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  background: rgba(255, 255, 255, 0.10);
  height: 30px;
  padding: 0 14px;
  border-radius: var(--radius-pill);
  font-size: 13px;
  letter-spacing: .2px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  margin-bottom: 18px;
}

.hero-kicker .dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #E9B18C;
}

.safety-hero h1 {
  font-size: clamp(34px, 5vw, 62px);
  line-height: 1.1;
  font-weight: 800;
  letter-spacing: 1px;
  max-width: 760px;
  margin-bottom: 22px;
}

.hero-desc {
  max-width: 690px;
  color: rgba(255, 255, 255, 0.84);
  font-size: 16px;
  line-height: 1.9;
  margin-bottom: 30px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 34px;
}

.hero-points {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 24px;
  font-size: 15px;
  color: rgba(255, 255, 255, 0.86);
}

.hero-points li {
  display: flex;
  align-items: center;
  gap: 8px;
}

.hero-points li::before {
  content: "";
  width: 7px;
  height: 7px;
  background: #DFA07E;
  border-radius: 50%;
}

/* ===== section ===== */
.section {
  padding: clamp(56px, 7vw, 96px) 0;
}

.eyebrow {
  display: inline-block;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: .8px;
  color: var(--c-primary);
  margin-bottom: 12px;
  text-transform: uppercase;
}

.section-head {
  max-width: 840px;
}

.section-head h2 {
  font-size: clamp(27px, 3.6vw, 42px);
  line-height: 1.25;
  letter-spacing: .3px;
  margin-bottom: 18px;
  font-weight: 800;
}

.section-head .lead {
  color: var(--c-muted);
  font-size: 16px;
  line-height: 1.9;
  max-width: 720px;
}

.sec-head-flex {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 30px;
  flex-wrap: wrap;
  margin-bottom: 40px;
}

/* ===== risk ===== */
.risk-section {
  background: var(--c-bg);
}

.risk-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 22px;
  margin-top: 42px;
}

.risk-card {
  background: var(--c-surface);
  border: 1px solid var(--c-edge);
  border-radius: var(--radius-lg);
  padding: 28px 28px 30px;
  box-shadow: var(--shadow-sm);
  transition: box-shadow .25s, transform .25s;
  position: relative;
}

.risk-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
}

.risk-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 18px;
}

.risk-index {
  font-size: 14px;
  font-weight: 700;
  color: var(--c-primary);
  font-family: "SF Mono", "Cascadia Code", Consolas, monospace;
}

.risk-card h3 {
  font-size: 21px;
  line-height: 1.45;
  font-weight: 700;
  margin-bottom: 8px;
}

.risk-card p {
  color: var(--c-muted);
  font-size: 15px;
  line-height: 1.8;
}

/* ===== feature panel ===== */
.feature-section {
  background: #FFFFFF;
}

.feature-list {
  display: grid;
  gap: 30px;
  margin-top: 44px;
}

.feature-panel {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  align-items: center;
  gap: clamp(30px, 5vw, 64px);
  background: #FEFCF9;
  border: 1px solid var(--c-edge);
  border-radius: 20px;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.feature-media {
  position: relative;
  height: 100%;
  min-height: 320px;
  background: #E9E3DA;
}

.feature-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  position: absolute;
  inset: 0;
}

.feature-content {
  padding: clamp(24px, 4vw, 52px);
}

.feature-index {
  font-size: 14px;
  font-weight: 800;
  color: var(--c-primary);
  letter-spacing: .6px;
}

.feature-content h3 {
  font-size: 25px;
  line-height: 1.35;
  font-weight: 800;
  margin: 8px 0 14px;
}

.feature-content > p {
  color: var(--c-muted);
  margin-bottom: 22px;
  line-height: 1.8;
}

.check-list {
  display: grid;
  gap: 10px;
  margin-top: 6px;
}

.check-list li {
  position: relative;
  display: flex;
  gap: 10px;
  padding-left: 30px;
  color: var(--c-ink);
  font-size: 15px;
  line-height: 1.75;
}

.check-list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  top: 0;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: rgba(47, 125, 91, 0.12);
  color: var(--c-success);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 700;
}

/* ===== timeline process ===== */
.process-section {
  background: #EFEBE4;
  border-top: 1px solid var(--c-line);
  border-bottom: 1px solid var(--c-line);
}

.timeline {
  display: grid;
  gap: 14px;
  margin-top: 46px;
}

.timeline-item {
  display: grid;
  grid-template-columns: 88px minmax(0, 1fr);
  gap: 18px;
  align-items: stretch;
}

.timeline-node {
  position: relative;
  text-align: center;
  padding-bottom: 20px;
}

.timeline-node::after {
  content: "";
  position: absolute;
  top: 60px;
  bottom: 0;
  left: 50%;
  width: 2px;
  background: linear-gradient(to bottom, rgba(180, 72, 56, 0.35), rgba(180, 72, 56, 0));
  transform: translateX(-50%);
}

.timeline-item:last-child .timeline-node::after {
  display: none;
}

.node-circle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: #fff;
  border: 1px solid var(--c-edge);
  color: var(--c-primary);
  font-weight: 800;
  font-size: 15px;
  box-shadow: var(--shadow-sm);
  position: relative;
  z-index: 1;
}

.timeline-card {
  background: #fff;
  border: 1px solid var(--c-edge);
  border-radius: var(--radius-lg);
  padding: 28px 30px;
  margin-bottom: 8px;
  box-shadow: var(--shadow-sm);
  transition: box-shadow .22s, transform .22s;
}

.timeline-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.timeline-head {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 10px;
}

.timeline-head h3 {
  font-size: 21px;
  font-weight: 700;
  color: var(--c-ink);
}

.timeline-card > p {
  color: var(--c-muted);
  font-size: 15px;
  line-height: 1.8;
}

.timeline-note {
  margin-top: 16px;
  padding: 14px 16px;
  background: #F9F6F0;
  border-radius: var(--radius-sm);
  font-size: 14px;
  color: var(--c-muted);
  line-height: 1.7;
  border-left: 3px solid var(--c-secondary);
}

/* ===== assurance ===== */
.assurance-band {
  background: #2A3233;
  color: #fff;
}

.assurance-grid {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 48px;
  align-items: center;
}

.assurance-copy h2 {
  font-size: clamp(26px, 3.2vw, 38px);
  line-height: 1.3;
  margin-bottom: 16px;
  letter-spacing: .4px;
}

.assurance-copy p {
  color: rgba(255, 255, 255, 0.7);
  line-height: 1.8;
  font-size: 15px;
}

.assurance-cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
}

.assurance-item {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 16px;
  padding: 20px;
  transition: background .2s, transform .2s;
}

.assurance-item:hover {
  background: rgba(255, 255, 255, 0.13);
  transform: translateY(-3px);
}

.assurance-item .ass-icon {
  width: 32px;
  height: 32px;
  border-radius: 10px;
  background: var(--c-primary);
  font-size: 15px;
  font-weight: 800;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 14px;
}

.assurance-item h3 {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 8px;
}

.assurance-item p {
  color: rgba(255, 255, 255, 0.7);
  font-size: 14px;
  line-height: 1.7;
}

/* ===== faq ===== */
.faq-section {
  background: var(--c-surface);
}

.faq-grid {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: clamp(36px, 5vw, 72px);
  align-items: start;
}

.faq-intro {
  position: sticky;
  top: 108px;
}

.faq-intro h2 {
  font-size: clamp(26px, 3vw, 38px);
  line-height: 1.35;
  margin-bottom: 16px;
  font-weight: 800;
}

.faq-intro p {
  color: var(--c-muted);
  line-height: 1.85;
  margin-bottom: 24px;
}

.faq-list {
  display: grid;
  gap: 14px;
}

.faq-item {
  background: #FBF9F5;
  border: 1px solid var(--c-edge);
  border-radius: var(--radius-md);
  border-left: 4px solid var(--c-line);
  overflow: hidden;
  transition: background .2s, border-color .2s, box-shadow .2s;
}

.faq-item[open] {
  background: #fff;
  border-left-color: var(--c-primary);
  box-shadow: var(--shadow-sm);
}

.faq-item summary {
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  min-height: 60px;
  padding: 14px 22px;
  font-size: 16px;
  font-weight: 600;
  color: var(--c-ink);
  transition: color .2s;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary::after {
  content: "+";
  font-size: 24px;
  font-weight: 300;
  color: var(--c-primary);
  flex-shrink: 0;
  line-height: 1;
  transition: transform .28s;
}

.faq-item[open] summary::after {
  content: "−";
  font-size: 24px;
}

.faq-content {
  padding: 0 22px 20px;
  color: var(--c-muted);
  border-top: 1px dashed var(--c-line);
  padding-top: 14px;
  margin-top: 4px;
  font-size: 15px;
  line-height: 1.85;
}

/* ===== bottom cta ===== */
.cta-section {
  background: #EEEAE2;
  padding: clamp(54px, 7vw, 88px) 0;
}

.cta-card {
  background: linear-gradient(120deg, #6B3A35, #9B4B3F);
  border-radius: 24px;
  color: #fff;
  padding: clamp(30px, 5vw, 64px);
  position: relative;
  overflow: hidden;
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 36px;
  align-items: center;
  box-shadow: 0 22px 44px rgba(107, 58, 53, 0.2);
}

.cta-card::after {
  content: "";
  position: absolute;
  width: 260px;
  height: 260px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.08);
  right: -70px;
  top: -70px;
}

.cta-card h2 {
  font-size: clamp(27px, 3.6vw, 40px);
  line-height: 1.3;
  letter-spacing: .6px;
  margin-bottom: 16px;
}

.cta-card p {
  color: rgba(255, 255, 255, 0.85);
  max-width: 640px;
  line-height: 1.9;
  margin-bottom: 22px;
}

.cta-card .btn-white {
  background: #fff;
  color: var(--c-primary-dark);
  border: 0;
}

.cta-card .btn-white:hover {
  background: #F6E9E3;
}

.cta-contact {
  position: relative;
  z-index: 1;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 18px;
  padding: 26px;
}

.cta-contact h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 12px;
}

.cta-contact ul {
  display: grid;
  gap: 10px;
  color: rgba(255, 255, 255, 0.9);
  font-size: 15px;
}

.cta-contact li {
  display: flex;
  align-items: center;
  gap: 9px;
}

.cta-contact li::before {
  content: "•";
  color: #F2C0A6;
  font-weight: 800;
}

/* ===== footer ===== */
.site-footer {
  background: #23272A;
  color: rgba(255, 255, 255, 0.72);
  font-size: 14px;
}

.footer-top {
  display: grid;
  grid-template-columns: 1.5fr 0.8fr 0.9fr 1fr;
  gap: 40px;
  padding: 60px 0 44px;
}

.footer-brand p {
  line-height: 1.8;
  max-width: 330px;
  margin-top: 8px;
  color: rgba(255, 255, 255, 0.62);
}

.footer-heading {
  color: #fff;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: .4px;
  margin-bottom: 14px;
}

.footer-links,
.footer-contact {
  display: grid;
  gap: 8px;
}

.footer-links a,
.footer-contact li {
  color: rgba(255, 255, 255, 0.6);
  line-height: 1.6;
}

.footer-links a:hover {
  color: #fff;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 20px 0;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 8px 20px;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.5);
}

/* ===== responsive ===== */
@media (min-width: 1200px) {
  .risk-grid {
    grid-template-columns: repeat(4, 1fr);
  }

  .feature-panel .feature-content {
    padding-right: 56px;
  }

  .feature-panel.is-reverse .feature-content {
    padding-left: 56px;
    padding-right: clamp(24px, 4vw, 52px);
  }
}

@media (max-width: 1000px) {
  .header-search {
    max-width: 360px;
  }

  .main-nav a {
    padding: 0 10px;
    font-size: 14px;
  }
}

@media (max-width: 900px) {
  .header-inner {
    flex-wrap: wrap;
    height: auto;
    min-height: 76px;
    padding: 12px 0;
    gap: 12px;
  }

  .main-nav {
    display: none;
    order: 6;
    width: 100%;
    margin-left: 0;
    flex-direction: column;
    align-items: stretch;
    padding: 12px 16px;
    background: #fff;
    border-radius: 16px;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--c-line);
  }

  .header-inner.nav-open .main-nav {
    display: flex;
  }

  .main-nav a {
    height: 44px;
    border-radius: 10px;
  }

  .nav-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    order: 5;
    margin-left: auto;
  }

  .header-search {
    order: 3;
    width: 100%;
    max-width: none;
  }

  .brand {
    order: 1;
  }

  .feature-panel,
  .assurance-grid,
  .cta-card,
  .faq-grid {
    grid-template-columns: 1fr;
  }

  .feature-media {
    min-height: 220px;
  }

  .feature-panel.is-reverse .feature-media {
    order: 1;
  }

  .feature-panel.is-reverse .feature-content {
    order: 2;
  }

  .faq-intro {
    position: static;
  }

  .assurance-copy {
    margin-bottom: 16px;
  }

  .cta-contact {
    margin-top: 12px;
  }
}

@media (max-width: 768px) {
  .footer-top {
    grid-template-columns: 1fr 1fr;
    gap: 36px;
    padding: 48px 0 32px;
  }

  .footer-brand {
    grid-column: 1 / -1;
  }

  .risk-grid {
    grid-template-columns: 1fr;
  }

  .timeline-item {
    grid-template-columns: 56px minmax(0, 1fr);
    gap: 12px;
  }

  .node-circle {
    width: 46px;
    height: 46px;
    font-size: 14px;
  }

  .timeline-node::after {
    top: 50px;
  }

  .timeline-head {
    align-items: flex-start;
  }

  .timeline-head h3 {
    font-size: 19px;
  }

  .timeline-card {
    padding: 22px;
  }

  .safety-hero {
    padding: 44px 0 52px;
  }
}

@media (max-width: 520px) {
  .container {
    width: calc(100% - 32px);
  }

  .header-mail,
  .footer-top {
    grid-template-columns: 1fr;
  }

  .hero-actions .btn {
    width: 100%;
  }

  .section {
    padding: 52px 0;
  }

  .feature-content h3,
  .risk-card h3 {
    font-size: 20px;
  }

  .risk-card,
  .timeline-card,
  .cta-card {
    border-radius: 14px;
  }

  .cta-card {
    padding: 28px 20px;
  }

  .assurance-cards {
    grid-template-columns: 1fr;
  }

  .header-search button {
    width: 68px;
    padding: 0;
    justify-content: center;
    text-indent: -999px;
    position: relative;
  }

  .header-search button::after {
    content: "搜索";
    text-indent: 0;
    position: absolute;
    left: 0;
    right: 0;
    text-align: center;
  }

  .footer-bottom {
    flex-direction: column;
  }
}