/* roulang page: index */
:root{
  --primary:#1E4E40;
  --primary-deep:#123B33;
  --primary-ink:#0B2A24;
  --accent:#B98A4F;
  --accent-light:#D2AE74;
  --bg:#F6F4EE;
  --surface:#ECE9DF;
  --card-bg:#FFFFFF;
  --text:#1F2C28;
  --text-muted:#53615D;
  --border:#DAD6CA;
  --danger:#C64F4F;
  --radius-lg:18px;
  --radius-md:14px;
  --radius-sm:8px;
  --shadow-soft:0 10px 30px rgba(20,45,40,.08);
  --shadow-hover:0 14px 40px rgba(20,45,40,.13);
  --container:1200px;
  --space-lg:clamp(56px,8vw,108px);
  --space-md:clamp(36px,5vw,64px);
  --font-base:"PingFang SC","HarmonyOS Sans SC","Miui","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--font-base);background:var(--bg);color:var(--text);line-height:1.75;font-size:16px;-webkit-font-smoothing:antialiased}
body.nav-open{overflow:hidden}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
ul,ol{list-style:none}
button,input,textarea{font-family:inherit;font-size:inherit;border:none;background:none}
button{cursor:pointer}
.container{width:min(var(--container),100% - 32px);margin:0 auto}
.section{padding-block:clamp(48px,7vw,96px)}
.section-head{max-width:800px;margin-bottom:clamp(24px,3vw,44px)}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.section-head.left{margin-left:0}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:600;color:var(--primary);background:rgba(30,78,64,.08);border-radius:100px;padding:6px 16px;margin-bottom:12px;letter-spacing:.02em}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent)}
h1,h2,h3,h4{line-height:1.3;color:var(--primary-ink);font-weight:700}
h1{font-size:clamp(32px,4.6vw,56px);line-height:1.22;letter-spacing:-.01em}
h2{font-size:clamp(26px,3vw,38px);line-height:1.3}
h3{font-size:clamp(18px,1.4vw,22px);line-height:1.4}
p{color:var(--text)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:48px;padding:12px 28px;border-radius:var(--radius-sm);font-weight:600;font-size:16px;border:1.5px solid transparent;transition:transform .25s ease,box-shadow .25s ease,background .25s ease,color .25s ease;text-align:center}
.btn:hover{transform:translateY(-2px)}
.btn:focus-visible{outline:3px solid rgba(30,78,64,.26);outline-offset:2px}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 6px 18px rgba(30,78,64,.18)}
.btn-primary:hover{background:var(--primary-deep);box-shadow:0 12px 28px rgba(30,78,64,.24);color:#fff}
.btn-accent{background:var(--accent);color:#fff;box-shadow:0 6px 18px rgba(185,138,79,.2)}
.btn-accent:hover{background:var(--accent-light);color:#fff}
.btn-outline{background:transparent;border-color:var(--primary);color:var(--primary)}
.btn-outline:hover{background:rgba(30,78,64,.06);color:var(--primary-deep)}
.btn-light{background:rgba(255,255,255,.13);border:1.5px solid rgba(255,255,255,.5);color:#fff;backdrop-filter:blur(4px)}
.btn-light:hover{background:rgba(255,255,255,.26)}
.btn-block{width:100%;justify-content:center}
.btn:disabled{opacity:.5;cursor:not-allowed;transform:none}

/* header */
.topbar{background:var(--primary-ink);color:rgba(255,255,255,.85);font-size:13px;padding-block:6px}
.topbar-content{display:flex;justify-content:space-between;align-items:center;gap:20px;width:min(var(--container),100% - 32px);margin:0 auto}
.topbar a{color:#DCE4DF;transition:color .2s}
.topbar a:hover{color:#fff}
.topbar-right{display:flex;gap:16px}
.site-header{position:sticky;top:0;z-index:99;background:rgba(246,244,238,.88);backdrop-filter:blur(18px);border-bottom:1px solid rgba(218,214,202,.5);transition:box-shadow .3s ease}
.site-header.is-scrolled{box-shadow:0 4px 20px rgba(11,42,36,.08)}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;height:72px;width:min(var(--container),100% - 32px);margin:0 auto;gap:24px}
.logo{display:flex;align-items:center;gap:10px;font-size:24px;font-weight:700;color:var(--primary-ink);line-height:1.2;letter-spacing:.01em;white-space:nowrap}
.logo:hover{opacity:.85}
.logo-icon{width:34px;height:34px;display:flex;align-items:center;justify-content:center;background:var(--primary);border-radius:8px;flex-shrink:0}
.logo-icon svg{outline:none}
.main-nav{display:flex;align-items:center;gap:32px}
.main-nav a{font-size:16px;font-weight:500;color:var(--text);padding-block:8px;padding-inline:4px;position:relative;transition:color .2s}
.main-nav a::after{content:"";position:absolute;left:50%;bottom:2px;transform:translateX(-50%) scaleX(0);width:24px;height:2.5px;background:var(--accent);border-radius:4px;transition:transform .25s ease}
.main-nav a:hover{color:var(--primary)}
.main-nav a.active{color:var(--primary);font-weight:600}
.main-nav a.active::after{transform:translateX(-50%) scaleX(1)}
.header-actions{display:flex;align-items:center;gap:12px}
.header-cta{text-align:center;min-width:126px;background:var(--accent);color:#fff;font-weight:600;font-size:15px;border-radius:8px;padding:12px 22px;box-shadow:0 4px 14px rgba(185,138,79,.28);transition:transform .2s,box-shadow .2s}
.header-cta:hover{transform:translateY(-2px);background:var(--accent-light);box-shadow:0 8px 24px rgba(185,138,79,.32);color:#fff}
.nav-toggle{display:none;width:46px;height:46px;align-items:center;justify-content:center;border-radius:8px;background:rgba(30,78,64,.06);color:var(--primary);transition:background .2s}
.nav-toggle:hover{background:rgba(30,78,64,.1)}
.nav-toggle svg{width:22px;height:22px}
.mobile-phone{display:none;width:46px;height:46px;align-items:center;justify-content:center;border-radius:8px;background:var(--accent);color:#fff}
.mobile-phone:hover{background:var(--accent-light);color:#fff}
.mobile-phone svg{width:20px;height:20px}
@media(max-width:991px){
  .main-nav,.header-cta{display:none}
  .nav-toggle{display:inline-flex}
  .mobile-phone{display:inline-flex}
  .site-header.nav-active .main-nav{display:flex;flex-direction:column;width:calc(100% - 32px);height:auto;background:var(--bg);border-bottom:1px solid var(--border);align-items:flex-start;padding:20px 16px;border-radius:0 0 16px 16px}
  .site-header.nav-active{background:var(--bg)}
}
@media(min-width:992px){
  .site-header.nav-active{background:transparent}
}
@media(max-width:575px){
  .main-nav{gap:16px 18px}
}

/* hero */
.hero{position:relative;color:#fff;overflow:hidden;padding:clamp(48px,6vw,80px) 0}
.hero-bg{position:absolute;inset:0;background:url('/assets/images/backpic/back-1.webp') center 30%/cover no-repeat}
.hero-bg::after{content:"";position:absolute;inset:0;background:linear-gradient(106deg,rgba(11,42,36,.86) 12%,rgba(18,59,51,.7) 58%,rgba(18,59,51,.42));filter:saturate(.95)}
.hero-inner{position:relative;display:grid;grid-template-columns:1.12fr .88fr;gap:44px;align-items:center}
.hero-copy{color:rgba(255,255,255,.92)}
.hero-kicker{display:inline-flex;align-items:center;gap:8px;background:rgba(255,255,255,.14);border-radius:100px;padding:7px 18px;font-size:13px;letter-spacing:.04em;color:#f4efe3;margin-bottom:20px;font-weight:500}
.hero-copy h1{color:#fff;margin-bottom:20px;max-width:640px}
.hero-lead{font-size:clamp(16px,1.4vw,20px);line-height:1.75;color:rgba(255,255,255,.9);margin-bottom:32px;max-width:600px;font-weight:400}
.hero-actions{display:flex;flex-wrap:wrap;gap:16px;margin-bottom:22px}
.hero-actions .btn{min-height:54px;padding:14px 32px;font-weight:600}
.hero-trust{display:flex;align-items:center;gap:26px;color:rgba(255,255,255,.7);font-size:13px}
.hero-trust span{display:flex;align-items:center;gap:6px}
.hero-trust svg{width:16px;height:16px;opacity:.8}
.hero-visual{position:relative;border-radius:var(--radius-lg);overflow:hidden;min-height:300px;box-shadow:0 28px 60px rgba(0,0,0,.28)}
.hero-visual img{width:100%;height:100%;object-fit:cover;min-height:300px;max-height:470px;position:relative;z-index:1}
.hero-visual-overlay{position:absolute;inset:0;background:linear-gradient(180deg,transparent 20%,rgba(11,42,36,.54) 100%);z-index:2}
@media(max-width:991px){
  .hero-inner{grid-template-columns:1fr;gap:28px}
  .hero-copy h1{font-size:clamp(31px,5vw,42px)}
}
@media(max-width:575px){
  .hero{padding:44px 0 40px}
  .hero-actions{gap:12px}
  .hero-actions .btn{width:100%;min-height:52px}
  .hero-trust{flex-wrap:wrap;gap:14px}
}

/* pain section */
.pain-section{position:relative}
.pain-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:clamp(28px,4vw,64px);align-items:stretch}
.pain-left h2{margin-bottom:26px}
.pain-list{display:grid;gap:18px}
.pain-item{display:flex;align-items:flex-start;gap:16px;padding:18px 0}
.pain-item+.pain-item{border-top:1px solid var(--border)}
.pain-item-icon{width:44px;height:44px;flex-shrink:0;border-radius:12px;background:var(--bg);border:1px solid var(--border);display:flex;align-items:center;justify-content:center;color:var(--primary)}
.pain-item-icon svg{width:21px;height:21px}
.pain-item strong{font-size:18px;font-weight:600;color:var(--text);display:block;line-height:1.4}
.pain-item p{font-size:15px;color:var(--text-muted);line-height:1.65;margin-top:4px}
.pain-right-bg{background:var(--primary);color:#fff;border-radius:var(--radius-lg);padding:clamp(28px,3vw,46px);position:relative;overflow:hidden;display:flex;flex-direction:column;justify-content:center;box-shadow:0 12px 32px rgba(18,59,51,.22)}
.pain-right-bg::after{content:"";position:absolute;right:-80px;top:-80px;width:280px;height:280px;background:radial-gradient(circle,rgba(210,174,116,.28) 0%,transparent 70%);pointer-events:none}
.pain-block-title{font-size:22px;font-weight:600;color:#fff;margin-bottom:18px}
.pain-block-list{display:grid;gap:14px;margin-bottom:24px}
.pain-block-list li{display:flex;gap:12px;color:rgba(255,255,255,.9);font-size:16px;line-height:1.7;align-items:flex-start}
.pain-block-list li svg{width:19px;height:19px;flex-shrink:0;margin-top:4px;opacity:.9}
.pain-note{background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.2);border-radius:12px;padding:18px 20px;font-size:14px;color:rgba(255,255,255,.78);line-height:1.65}
.pain-note strong{color:#f2dfba;font-weight:600}
@media(max-width:991px){
  .pain-grid{grid-template-columns:1fr}
  .pain-list{grid-template-columns:1fr 1fr;gap:10px 22px}
  .pain-item{padding:14px 0}
}
@media(max-width:575px){
  .pain-list{grid-template-columns:1fr;gap:0px}
  .pain-item{padding:14px 0}
}

/* solution */
.solution-section{background:var(--bg)}
.solution-grid{display:grid;gap:26px}
.solution-feature{display:grid;grid-template-columns:1.2fr .8fr;border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--border);background:var(--card-bg);box-shadow:var(--shadow-soft);transition:box-shadow .3s,transform .3s}
.solution-feature:hover{box-shadow:var(--shadow-hover);transform:translateY(-3px)}
.solution-feature .feat-content{padding:clamp(28px,3vw,44px);display:flex;flex-direction:column;justify-content:center}
.solution-feature .feat-media{min-height:260px;background:var(--surface)}
.solution-feature .feat-media img{width:100%;height:100%;object-fit:cover;min-height:260px}
.feat-tag{display:inline-block;background:rgba(185,138,79,.12);color:#8a632f;font-size:13px;font-weight:600;border-radius:100px;padding:6px 14px;margin-bottom:14px}
.feat-title{font-size:20px;font-weight:700;margin-bottom:12px;line-height:1.4}
.feat-content p{font-size:14px;line-height:1.85;color:var(--text);margin-bottom:14px;max-width:60ch}
.feat-link{display:inline-flex;align-items:center;gap:8px;font-weight:600;color:var(--primary);margin-top:10px;font-size:15px}
.feat-link svg{width:16px;height:16px;transition:transform .2s}
.feat-link:hover svg{transform:translateX(4px)}
.solution-stack{display:grid;grid-template-columns:1fr 1fr;gap:26px}
.solution-card{border:1px solid var(--border);background:var(--card-bg);height:100%;border-radius:var(--radius-lg);padding:32px 28px;transition:box-shadow .3s,border-color .3s,transform .3s;position:relative;display:flex;flex-direction:column}
.solution-card:hover{box-shadow:var(--shadow-hover);border-color:rgba(185,138,79,.5);transform:translateY(-2px)}
.solution-num{width:42px;height:42px;display:flex;align-items:center;justify-content:center;border-radius:12px;background:rgba(30,78,64,.08);color:var(--primary);font-weight:700;font-size:18px;margin-bottom:18px}
.solution-card h3{font-size:20px;font-weight:700;margin-bottom:12px}
.solution-card p{font-size:14px;line-height:1.8;color:var(--text);margin-bottom:18px}
.card-link{display:inline-flex;align-items:center;gap:8px;color:var(--primary);font-weight:600;font-size:14px;margin-top:auto}
.card-link svg{width:15px;height:15px}
.solution-strip{display:flex;gap:22px;align-items:center;justify-content:space-between;flex-wrap:wrap;background:var(--btn-primary);background:var(--primary);border-radius:var(--radius-lg);padding:24px 32px;color:#fff;box-shadow:0 12px 28px rgba(30,78,64,.2)}
.solution-strip p{color:rgba(255,255,255,.9);font-size:17px;font-weight:500}
@media(max-width:991px){
  .solution-stack{grid-template-columns:1fr}
}
@media(max-width:767px){
  .solution-feature{grid-template-columns:1fr}
  .solution-feature .feat-media{order:-1;min-height:200px}
  .solution-feature .feat-media img{min-height:200px}
}

/* data */
.data-section{background:var(--primary-deep);position:relative;overflow:hidden;color:#fff}
.data-section::before{content:"";position:absolute;inset:0;background:url('/assets/images/backpic/back-2.png') center/cover no-repeat;opacity:.18;mix-blend-mode:luminosity}
.data-section .section-head{position:relative;z-index:2}
.data-section h2{color:#fff}
.data-grid{position:relative;z-index:2;display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-bottom:40px}
.data-item{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.13);border-radius:18px;padding:26px 16px;text-align:center;transition:background .3s,border .3s}
.data-item:hover{background:rgba(255,255,255,.12);border-color:rgba(210,174,116,.5)}
.data-item strong{display:block;font-size:clamp(32px,3.4vw,50px);font-weight:800;color:#fff;line-height:1.1;margin-bottom:6px;letter-spacing:-.01em}
.data-item span{font-size:14px;color:rgba(255,255,255,.7);line-height:1.6}
.data-center{position:relative;z-index:2;text-align:center}
.data-center .btn{background:rgba(255,255,255,.08);border:1.5px solid rgba(255,255,255,.46);color:#fff;border-radius:8px;padding:12px 30px}
.data-center .btn:hover{background:rgba(255,255,255,.22);color:#fff}
@media(max-width:991px){
  .data-grid{grid-template-columns:1fr 1fr;gap:14px}
}
@media(max-width:480px){
  .data-item{padding:20px 12px}
}

/* testimonial */
.testi-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:28px;align-items:stretch}
.testi-main{background:var(--card-bg);border:1px solid var(--border);border-radius:var(--radius-lg);padding:clamp(28px,3vw,40px);box-shadow:var(--shadow-soft)}
.testi-main blockquote{font-size:clamp(17px,1.5vw,21px);line-height:1.7;color:var(--text);font-weight:500;margin-bottom:18px}
.testi-quote{font-size:60px;color:rgba(185,138,79,.35);line-height:.6;display:block;height:32px;font-family:Georgia,serif;margin-bottom:16px}
.testi-person{display:flex;align-items:center;gap:14px}
.testi-avatar{width:42px;height:42px;border-radius:50%;background:var(--primary);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:16px;font-style:normal}
.testi-meta cite{font-style:normal;font-weight:600;color:var(--text);display:block;font-size:15px}
.testi-meta span{font-size:13px;color:var(--text-muted)}
.testi-list{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.testi-item{border:1px solid var(--border);border-left:3px solid var(--accent);background:var(--card-bg);border-radius:14px;padding:22px 20px;box-shadow:2px 6px 18px rgba(20,45,40,.04);transition:box-shadow .3s,transform .3s}
.testi-item:hover{box-shadow:var(--shadow-hover);transform:translateY(-2px)}
.testi-item blockquote{font-size:14.5px;line-height:1.78;color:var(--text);margin-bottom:16px}
.testi-item .testi-person{gap:10px}
.testi-item .testi-avatar{width:36px;height:36px;font-size:14px}
.testi-item .testi-meta cite{font-size:14px}
.testi-item .testi-meta span{font-size:12.5px}
@media(max-width:991px){
  .testi-grid{grid-template-columns:1fr;gap:24px}
  .testi-list{grid-template-columns:1fr 1fr}
}
@media(max-width:575px){
  .testi-list{grid-template-columns:1fr}
}
/* news */
.news-list{display:grid;gap:16px}
.news-head{display:flex;justify-content:space-between;align-items:flex-end}
.news-item{background:var(--card-bg);border:1px solid var(--border);border-radius:16px;overflow:hidden;transition:box-shadow .3s,transform .3s;display:flex}
.news-item:hover{box-shadow:var(--shadow-hover);transform:translateY(-2px)}
.news-thumb{width:180px;min-height:130px;overflow:hidden;flex-shrink:0;background:var(--surface)}
.news-thumb img{width:100%;height:100%;object-fit:cover}
.news-body{padding:18px 22px;flex:1;display:flex;flex-direction:column}
.news-body h3{font-size:18px;font-weight:700;margin-bottom:8px;line-height:1.45}
.news-body h3:hover{color:var(--primary)}
.news-body p{font-size:14px;color:var(--text-muted);line-height:1.65;margin-bottom:12px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-meta{display:flex;gap:16px;font-size:12.5px;color:#7c8990;margin-top:auto;flex-wrap:wrap}
.news-meta span{display:flex;align-items:center;gap:6px}
.news-meta svg{width:14px;height:14px;opacity:.7}
.news-cat{display:inline-block;background:rgba(30,78,64,.07);color:var(--primary);border:1px solid rgba(30,78,64,.1);border-radius:100px;padding:3px 12px;font-size:12px;font-weight:600;margin-right:8px}
.news-empty{text-align:center;padding:40px 20px;background:var(--card-bg);border:1px dashed var(--border);border-radius:18px}
.news-empty p{font-size:16px;color:var(--text-muted)}
/* news two-col mode */
.news-featured-item .news-thumb{width:230px}
@media(max-width:767px){
  .news-item{flex-direction:column}
  .news-thumb{width:100%;min-height:165px}
  .news-featured-item .news-thumb{width:100%}
}
@media(max-width:480px){
  .news-item{flex-direction:column}
  .news-thumb{width:100%;min-height:150px;height:auto}
  .news-body{padding:16px}
}
/* faq */
.faq-wrap{max-width:820px;margin:0 auto}
.faq-item{border:1px solid var(--border);border-radius:14px;background:var(--card-bg);padding:0;margin-bottom:14px;overflow:hidden;transition:box-shadow .25s}
.faq-item[open]{box-shadow:var(--shadow-soft);border-color:rgba(185,138,79,.4)}
.faq-item summary{display:flex;align-items:center;gap:16px;padding:20px 22px;cursor:pointer;list-style:none;transition:color .2s,background .2s}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{background:rgba(246,244,238,.78)}
.faq-icon{width:28px;height:28px;flex-shrink:0;border:1.5px solid var(--primary);border-radius:50%;color:var(--primary);display:flex;align-items:center;justify-content:center;font-weight:600;transition:background .25s,color .25s}
.faq-item[open] summary .faq-icon{background:var(--primary);color:#fff}
.faq-question{font-weight:600;font-size:17px;color:var(--text);flex:1}
.faq-arrow{margin-left:auto;color:var(--accent);font-size:22px;line-height:1;font-weight:400}
.faq-item summary .faq-arrow{transition:transform .3s ease}
.faq-item[open] summary .faq-arrow{transform:rotate(135deg)}
.faq-answer{display:block;padding:0 22px 22px 66px;font-size:14.5px;color:var(--text-muted);line-height:1.8}
.faq-answer p{color:var(--text-muted)}
@media(max-width:575px){
  .faq-item summary{padding:16px 16px;gap:12px}
  .faq-answer{padding:0 16px 18px 16px}
  .faq-question{font-size:15px}
}
/* cta */
.cta-section{position:relative;overflow:hidden;color:#fff;padding:clamp(60px,8vw,105px) 0}
.cta-section .bg-fill{position:absolute;inset:0;background:url('/assets/images/backpic/back-2.png') center/cover no-repeat}
.cta-section .bg-fill::after{content:"";position:absolute;inset:0;background:rgba(11,42,36,.77);}
.cta-inner{position:relative;text-align:center;max-width:720px;margin:0 auto;color:#fff}
.cta-inner h2{color:#fff;font-weight:800;margin-bottom:18px}
.cta-inner p{color:rgba(255,255,255,.82);font-size:17px;line-height:1.8;margin-bottom:26px}
.cta-actions{display:flex;justify-content:center;gap:16px;flex-wrap:wrap}
.btn-cta{background:var(--accent);color:#fff;border:2px solid var(--accent)}
.btn-cta:hover{background:var(--accent-light);border-color:var(--accent-light);transform:translateY(-2px)}
.btn-outline-light{border:2px solid rgba(255,255,255,.7);color:#fff}
.btn-outline-light:hover{background:rgba(255,255,255,.12);border-color:#fff}
@media(max-width:575px){
  .cta-actions .btn{width:calc(100% - 12px)}
}
/* footer */
.footer{background:var(--primary-ink);color:#9fb7ae;padding-top:clamp(48px,6vw,72px);font-size:15px;line-height:1.75}
.footer-top{width:min(var(--container),100% - 32px);margin:0 auto;padding-bottom:clamp(32px,4vw,48px);border-bottom:1px solid rgba(255,255,255,.08)}
.footer-grid{display:grid;grid-template-columns:1.4fr .7fr .9fr 1.1fr;gap:32px}
.footer-brand h3{font-size:22px;color:#E7EDEA;font-weight:700;margin-bottom:16px}
.footer-brand p{font-size:13.5px;color:#7F9990;display:flex;gap:8px;flex-direction:column}
.footer-col h4{color:#D5DED9;font-size:16px;font-weight:600;margin-bottom:18px;letter-spacing:.05em}
.footer-col li{margin-bottom:7px}
.footer-col a{color:#8fa89f;font-size:14px;transition:color .2s}
.footer-col a:hover{color:#E9D9B8}
.footer-contact li{display:flex;gap:10px;font-size:14px;color:#8fa89f;align-items:flex-start}
.footer-contact svg{width:16px;height:16px;margin-top:4px;color:var(--accent)}
.footer-bottom{width:min(var(--container),100% - 32px);margin:0 auto;padding-block:22px;display:flex;justify-content:space-between;gap:12px;align-items:center;color:#6E8B82;font-size:13px;flex-wrap:wrap}
.footer-links{display:flex;gap:20px;flex-wrap:wrap}
.footer-links a{color:#8fa89f;font-size:13px}
.footer-links a:hover{color:#fff}
@media(max-width:991px){
  .footer-grid{grid-template-columns:1fr .8fr}
  .footer-contact{grid-column:1/ -1}
  .footer-bottom{flex-direction:column}
}
@media(max-width:575px){
  .footer-grid{grid-template-columns:1fr;gap:24px}
}
/* misc */
.copyright-line span{display:inline-block;margin-right:6px}
.form-error{display:none;margin-top:8px;font-size:14px;color:var(--danger)}

/* roulang page: category1 */
:root {
  --pine: #1E4E40;
  --pine-deep: #123B33;
  --pine-ink: #0B2A24;
  --accent: #B98A4F;
  --accent-light: #D2AE74;
  --bg: #F6F4EE;
  --surface: #ECE9DF;
  --ink: #1F2C28;
  --muted: #53615D;
  --border: #DAD6CA;
  --error: #C64F4F;
  --radius-lg: 18px;
  --radius-md: 14px;
  --radius-sm: 8px;
  --shadow: 0 10px 30px rgba(20, 45, 40, 0.08);
  --shadow-lift: 0 18px 40px rgba(20, 45, 40, 0.14);
  --font: "PingFang SC", "HarmonyOS Sans SC", "Miui", "Microsoft YaHei", "Noto Sans SC", system-ui, sans-serif;
}
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
}
body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--ink);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
img {
  max-width: 100%;
  display: block;
}
a {
  color: inherit;
  text-decoration: none;
}
button {
  font-family: inherit;
  border: none;
  cursor: pointer;
  background: none;
}
ul, ol {
  list-style: none;
}
.container {
  width: min(1200px, 100% - 48px);
  margin-inline: auto;
}
.section {
  padding: 96px 0;
}
.section-head {
  max-width: 760px;
  margin-bottom: 48px;
}
.section-head .eyebrow {
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--accent);
  text-transform: uppercase;
  margin-bottom: 10px;
  display: inline-block;
}
.section-head h2 {
  font-size: clamp(26px, 3.2vw, 38px);
  font-weight: 800;
  line-height: 1.3;
  color: var(--pine-ink);
  margin-bottom: 16px;
}
.section-head p {
  font-size: 16px;
  color: var(--muted);
}
.eyebrow {
  color: var(--accent);
  font-weight: 700;
  letter-spacing: 0.06em;
  font-size: 14px;
}

/* header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(246, 244, 238, 0.92);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(218, 214, 202, 0.8);
  transition: box-shadow 0.3s ease;
}
.header-inner {
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.logo {
  font-size: 20px;
  font-weight: 800;
  color: var(--pine-ink);
  letter-spacing: 0.02em;
  white-space: nowrap;
  display: inline-flex;
  align-items: center;
  gap: 10px;
}
.logo-mark {
  width: 34px;
  height: 34px;
  border-radius: 9px;
  background: linear-gradient(145deg, var(--pine), var(--pine-deep));
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 16px;
  font-weight: 800;
  flex: 0 0 34px;
}
.main-nav {
  display: flex;
  align-items: center;
  gap: 6px;
}
.main-nav a {
  display: inline-flex;
  align-items: center;
  padding: 10px 18px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 500;
  color: var(--muted);
  transition: all 0.22s ease;
  position: relative;
  line-height: 1.2;
}
.main-nav a:hover {
  color: var(--pine);
  background: rgba(30, 78, 64, 0.07);
}
.main-nav a.active {
  background: var(--pine);
  color: #fff;
  font-weight: 600;
}
.main-nav a.active:hover {
  color: #fff;
  background: var(--pine-deep);
}
.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-left: auto;
}
.btn-cta-header {
  min-height: 46px;
  padding: 0 24px;
  border-radius: 10px;
  background: var(--accent);
  color: var(--pine-ink);
  font-size: 15px;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.22s ease, box-shadow 0.22s ease, background 0.22s ease;
  box-shadow: 0 8px 20px rgba(185, 138, 79, 0.22);
}
.btn-cta-header:hover {
  background: var(--accent-light);
  transform: translateY(-2px);
  box-shadow: 0 12px 26px rgba(185, 138, 79, 0.3);
}
.btn-cta-header:focus-visible,
.main-nav a:focus-visible,
a:focus-visible,
button:focus-visible {
  outline: 3px solid var(--accent-light);
  outline-offset: 2px;
}
.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border-radius: 10px;
  align-items: center;
  justify-content: center;
  color: var(--pine-ink);
  border: 1px solid var(--border);
  background: #fff;
}
.nav-toggle svg {
  width: 22px;
  height: 22px;
}

/* breadcrumb */
.crumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  color: var(--muted);
  margin-bottom: 16px;
}
.crumb a {
  color: var(--pine);
  font-weight: 500;
}
.crumb a:hover {
  color: var(--accent);
}
.crumb .sep {
  color: var(--border);
  font-weight: 300;
}

/* category hero */
.category-hero {
  padding: 72px 0 72px;
  position: relative;
  overflow: hidden;
}
.category-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(115deg, rgba(18, 59, 51, 0.10), rgba(246, 244, 238, 0) 48%), 
              radial-gradient(circle at 86% 20%, rgba(185, 138, 79, 0.14), transparent 30%);
  pointer-events: none;
}
.hero-grid {
  position: relative;
  display: grid;
  grid-template-columns: 1.08fr 0.92fr;
  gap: 56px;
  align-items: center;
}
.hero-copy {
  max-width: 610px;
}
.hero-copy h1 {
  font-size: clamp(34px, 4.6vw, 58px);
  font-weight: 800;
  line-height: 1.18;
  color: var(--pine-ink);
  margin-bottom: 20px;
  letter-spacing: -0.01em;
}
.hero-copy h1 .hero-accent {
  color: var(--pine);
}
.hero-copy .hero-desc {
  font-size: 17px;
  line-height: 1.8;
  color: var(--muted);
  margin-bottom: 28px;
  max-width: 520px;
}
.hero-btns {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}
.btn-primary {
  min-height: 48px;
  padding: 0 26px;
  border-radius: 10px;
  background: var(--pine);
  color: #fff;
  font-size: 16px;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  transition: transform 0.22s ease, box-shadow 0.22s ease, background 0.22s ease;
  box-shadow: 0 10px 24px rgba(30, 78, 64, 0.22);
}
.btn-primary:hover {
  background: var(--pine-deep);
  transform: translateY(-2px);
  box-shadow: 0 14px 30px rgba(30, 78, 64, 0.28);
}
.btn-secondary {
  min-height: 48px;
  padding: 0 26px;
  border-radius: 10px;
  border: 1px solid var(--pine);
  color: var(--pine);
  font-size: 16px;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.5);
  transition: all 0.22s ease;
}
.btn-secondary:hover {
  background: rgba(30, 78, 64, 0.08);
  border-color: var(--pine-deep);
  color: var(--pine-deep);
}
.hero-media {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow);
  aspect-ratio: 4 / 3;
  background: var(--surface);
}
.hero-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.hero-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(160deg, rgba(18, 59, 51, 0.02) 0%, rgba(18, 59, 51, 0.14) 100%);
  pointer-events: none;
}
.hero-note {
  position: absolute;
  left: 24px;
  bottom: 22px;
  background: rgba(11, 42, 36, 0.82);
  color: #F9F7F1;
  padding: 14px 18px;
  border-radius: 14px;
  font-size: 14px;
  line-height: 1.6;
  max-width: 260px;
  backdrop-filter: blur(8px);
  z-index: 2;
}
.hero-note strong {
  display: block;
  font-size: 16px;
  color: var(--accent-light);
  margin-bottom: 2px;
}

/* guide feature cards */
.guide-section {
  background: var(--bg);
}
.guide-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 24px;
}
.feature-card {
  position: relative;
  border-radius: var(--radius-lg);
  background: #fff;
  border: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  min-height: 230px;
  padding: 34px;
  box-shadow: var(--shadow);
  transition: transform 0.24s ease, box-shadow 0.24s ease, border-color 0.24s ease;
  overflow: hidden;
}
.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lift);
  border-color: var(--accent);
}
.feature-card-icon {
  width: 46px;
  height: 46px;
  border-radius: 12px;
  background: var(--pine);
  color: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}
.feature-card-icon svg {
  width: 22px;
  height: 22px;
}
.feature-card h3 {
  font-size: 21px;
  font-weight: 700;
  color: var(--pine-ink);
  line-height: 1.45;
  margin-bottom: 12px;
}
.feature-card p {
  color: var(--muted);
  font-size: 15px;
  line-height: 1.8;
}
.card-more {
  margin-top: auto;
  padding-top: 22px;
  color: var(--pine);
  font-size: 15px;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: color 0.2s ease;
}
.feature-card:hover .card-more {
  color: var(--accent);
}
.feature-card--wide-main {
  grid-column: span 6;
  background: linear-gradient(135deg, var(--pine-ink), var(--pine-deep));
  color: #fff;
  border: none;
}
.feature-card--wide-main h3 {
  color: #fff;
}
.feature-card--wide-main p {
  color: rgba(255, 255, 255, 0.78);
}
.feature-card--wide-main .card-more {
  color: var(--accent-light);
}
.feature-card--wide-main .feature-card-icon {
  background: rgba(255, 255, 255, 0.16);
  color: var(--accent-light);
}
.feature-card--image {
  grid-column: span 6;
  min-height: 320px;
  padding: 0;
  position: relative;
  border: none;
}
.feature-card--image img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.feature-card--image:hover img {
  transform: scale(1.03);
}
.feature-card--image::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(200deg, rgba(11, 42, 36, 0.18), rgba(11, 42, 36, 0.78));
}
.feature-image-body {
  position: absolute;
  inset: 0;
  z-index: 2;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 34px;
  color: #fff;
}
.feature-image-body h3 {
  font-size: 23px;
  font-weight: 800;
  color: #fff;
  margin-bottom: 10px;
}
.feature-image-body p {
  color: rgba(255, 255, 255, 0.85);
  font-size: 15px;
  line-height: 1.7;
  margin-bottom: 18px;
}
.image-tag {
  display: inline-flex;
  align-self: flex-start;
  background: rgba(255, 255, 255, 0.14);
  border: 1px solid rgba(255, 255, 255, 0.35);
  backdrop-filter: blur(6px);
  color: #fff;
  font-size: 13px;
  font-weight: 500;
  padding: 6px 14px;
  border-radius: 999px;
  margin-bottom: 14px;
}
.feature-card--small {
  grid-column: span 4;
  min-height: 220px;
  padding: 28px;
  background: #fff;
}
.feature-card--small .feature-card-icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  margin-bottom: 16px;
}
.feature-card--small h3 {
  font-size: 18px;
  margin-bottom: 10px;
}
.feature-card--small p {
  font-size: 14px;
}

/* steps */
.steps-wrap {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  counter-reset: stepCount;
}
.step-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 34px 30px;
  box-shadow: var(--shadow);
  position: relative;
  transition: transform 0.24s ease, border-color 0.24s ease;
}
.step-card:hover {
  transform: translateY(-4px);
  border-color: var(--accent);
}
.step-card::before {
  counter-increment: stepCount;
  content: "0" counter(stepCount);
  font-size: 42px;
  font-weight: 800;
  line-height: 1;
  color: rgba(30, 78, 64, 0.13);
  display: block;
  margin-bottom: 20px;
}
.step-card h3 {
  font-size: 19px;
  font-weight: 700;
  color: var(--pine-ink);
  margin-bottom: 10px;
}
.step-card p {
  color: var(--muted);
  font-size: 15px;
  line-height: 1.75;
}

/* intro split */
.intro-split {
  background: var(--surface);
}
.split-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}
.split-media {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lift);
  background: var(--pine-deep);
}
.split-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  aspect-ratio: 5 / 4;
}
.split-copy h2 {
  font-size: clamp(26px, 3vw, 38px);
  font-weight: 800;
  color: var(--pine-ink);
  line-height: 1.3;
  margin-bottom: 16px;
}
.split-copy .lead {
  color: var(--muted);
  font-size: 16px;
  line-height: 1.8;
  margin-bottom: 28px;
}
.split-list li {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  padding: 12px 0;
  border-bottom: 1px solid rgba(218, 214, 202, 0.7);
  font-size: 15px;
  color: var(--ink);
}
.split-list li:last-child {
  border-bottom: none;
}
.split-list svg {
  width: 20px;
  height: 20px;
  color: var(--accent);
  flex: 0 0 20px;
  margin-top: 4px;
}
.split-copy .btn-primary {
  margin-top: 16px;
}

/* FAQ */
.faq-wrap {
  max-width: 880px;
  margin-inline: auto;
}
.faq-item {
  border: 1px solid var(--border);
  background: #fff;
  border-radius: var(--radius-md);
  margin-bottom: 12px;
  overflow: hidden;
  transition: border-color 0.22s ease, box-shadow 0.22s ease;
}
.faq-item:hover {
  border-color: var(--pine);
}
.faq-item.open {
  border-color: var(--pine);
  box-shadow: var(--shadow);
}
.faq-question {
  width: 100%;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 20px;
  padding: 22px 24px;
  text-align: left;
  font-size: 16px;
  font-weight: 600;
  color: var(--pine-ink);
  line-height: 1.5;
  transition: color 0.2s ease;
}
.faq-question:hover {
  color: var(--pine);
}
.faq-item.open .faq-question {
  color: var(--pine);
}
.faq-icon {
  width: 24px;
  height: 24px;
  flex: 0 0 24px;
  border-radius: 50%;
  border: 1px solid var(--border);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--pine);
  font-style: normal;
  font-weight: 600;
  font-size: 16px;
  transition: all 0.25s ease;
  margin-top: 2px;
}
.faq-item.open .faq-icon {
  transform: rotate(45deg);
  background: var(--pine);
  border-color: var(--pine);
  color: #fff;
}
.faq-answer {
  display: none;
  padding: 0 24px 24px;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.8;
  background: linear-gradient(180deg, rgba(236, 233, 223, 0.2), rgba(236, 233, 223, 0));
}
.faq-answer p {
  max-width: 780px;
}
.faq-item.open .faq-answer {
  display: block;
}

/* CTA */
.cta-zone {
  padding: 96px 0;
  background-color: var(--pine-ink);
  background-image: linear-gradient(rgba(11, 42, 36, 0.86), rgba(11, 42, 36, 0.9)), url("/assets/images/backpic/back-3.webp");
  background-size: cover;
  background-position: center;
  text-align: center;
}
.cta-inner {
  max-width: 720px;
  margin-inline: auto;
}
.cta-inner h2 {
  font-size: clamp(28px, 4vw, 44px);
  color: #fff;
  font-weight: 800;
  line-height: 1.3;
  margin-bottom: 18px;
}
.cta-inner p {
  color: rgba(255, 255, 255, 0.8);
  font-size: 17px;
  line-height: 1.8;
  margin-bottom: 34px;
}
.cta-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 14px;
}
.cta-actions .btn-primary {
  background: var(--accent);
  color: var(--pine-ink);
  box-shadow: 0 10px 24px rgba(185, 138, 79, 0.3);
}
.cta-actions .btn-primary:hover {
  background: var(--accent-light);
}
.cta-actions .btn-line-light {
  min-height: 48px;
  padding: 0 26px;
  border-radius: 10px;
  border: 1px solid rgba(255, 255, 255, 0.7);
  color: #fff;
  font-size: 16px;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: all 0.22s ease;
  background: transparent;
}
.cta-actions .btn-line-light:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: #fff;
}

/* footer */
.footer {
  background: var(--pine-ink);
  color: #D9E5E1;
}
.footer-top {
  padding: 70px 0 40px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 0.8fr 0.9fr 1.1fr;
  gap: 48px;
}
.footer-brand h3 {
  font-size: 22px;
  color: #fff;
  font-weight: 800;
  margin-bottom: 14px;
  letter-spacing: 0.02em;
}
.footer-brand p {
  font-size: 14px;
  line-height: 1.8;
  color: #7F9990;
  margin-top: 16px;
}
.footer-col h4 {
  color: #fff;
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 18px;
}
.footer-col ul li {
  margin-bottom: 10px;
}
.footer-col a {
  color: #9AB3AC;
  font-size: 14px;
  transition: color 0.2s ease;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.footer-col a:hover {
  color: var(--accent-light);
}
.footer-contact li {
  display: flex;
  align-items: center;
  gap: 8px;
  color: #9AB3AC;
  font-size: 14px;
  line-height: 1.6;
}
.footer-contact svg {
  width: 17px;
  height: 17px;
  color: var(--accent-light);
  flex: 0 0 17px;
}
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding: 24px 0;
}
.footer-bottom-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}
.copyright-line {
  color: #7F9990;
  font-size: 13px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}
.footer-links a {
  color: #7F9990;
  font-size: 13px;
  transition: color 0.2s ease;
}
.footer-links a:hover {
  color: var(--accent-light);
}

/* responsive */
@media (max-width: 1180px) {
  .main-nav a {
    padding: 9px 13px;
    font-size: 14px;
  }
  .feature-card {
    padding: 28px;
  }
  .feature-card--wide-main {
    padding: 32px;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 40px;
  }
}
@media (max-width: 992px) {
  .nav-toggle {
    display: inline-flex;
  }
  .header-inner {
    flex-wrap: wrap;
  }
  .main-nav {
    order: 3;
    width: 100%;
    display: none;
    flex-direction: column;
    align-items: stretch;
    background: rgba(255, 255, 255, 0.96);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 14px;
    margin-bottom: 14px;
    box-shadow: var(--shadow);
    gap: 4px;
  }
  .main-nav.open {
    display: block;
  }
  .main-nav a {
    display: flex;
    justify-content: center;
    padding: 14px 18px;
    font-size: 16px;
    border-radius: 10px;
    text-align: center;
  }
  .header-actions {
    margin-left: 0;
  }
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .hero-copy {
    max-width: 100%;
  }
  .hero-media {
    max-width: 560px;
  }
  .section {
    padding: 70px 0;
  }
  .steps-wrap {
    grid-template-columns: 1fr;
  }
  .split-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .split-media img {
    aspect-ratio: 16 / 10;
  }
}
@media (max-width: 768px) {
  .section {
    padding: 56px 0;
  }
  .guide-grid {
    grid-template-columns: 1fr;
  }
  .feature-card,
  .feature-card--wide-main,
  .feature-card--image,
  .feature-card--small {
    grid-column: span 1;
  }
  .feature-card--image {
    min-height: 280px;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .footer-top {
    padding: 48px 0 28px;
  }
  .container {
    width: min(100% - 32px, 1200px);
  }
  .cta-zone {
    padding: 64px 0;
  }
  .hero-btns {
    flex-direction: column;
    align-items: stretch;
    max-width: 100%;
  }
  .btn-primary,
  .btn-secondary {
    width: 100%;
  }
  .split-copy {
    padding-top: 8px;
  }
}
@media (max-width: 520px) {
  .header-inner {
    gap: 12px;
  }
  .logo {
    font-size: 17px;
  }
  .logo-mark {
    width: 30px;
    height: 30px;
    font-size: 14px;
    flex-basis: 30px;
    border-radius: 8px;
  }
  .btn-cta-header {
    min-height: 42px;
    padding: 0 16px;
    font-size: 14px;
  }
  .hero-copy h1 {
    font-size: 32px;
  }
  .section-head {
    margin-bottom: 32px;
  }
  .footer-bottom-inner {
    flex-direction: column;
    align-items: flex-start;
  }
}

/* roulang page: article */
:root{
  --primary:#1E4E40;
  --primary-dark:#123B33;
  --primary-ink:#0B2A24;
  --accent:#B98A4F;
  --accent-light:#D2AE74;
  --bg:#F6F4EE;
  --surface:#ECE9DF;
  --text:#1F2C28;
  --muted:#53615D;
  --border:#DAD6CA;
  --white:#FFFFFF;
  --radius-lg:18px;
  --radius-md:14px;
  --radius-sm:8px;
  --shadow:0 10px 30px rgba(20,45,40,.08);
  --shadow-hover:0 18px 42px rgba(20,45,40,.14);
  --font:-apple-system,BlinkMacSystemFont,"PingFang SC","HarmonyOS Sans SC","Miui","Microsoft YaHei","Noto 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(--text);font-size:16px;line-height:1.75;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:var(--primary);text-decoration:none;transition:color .2s,background .2s,border-color .2s,box-shadow .2s,transform .2s}
a:hover{color:var(--primary-dark)}
button{font-family:inherit;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,h5,h6{margin:0;font-weight:700;line-height:1.3;color:var(--primary-ink)}
.container{max-width:1200px;margin:0 auto;padding:0 24px}
.page-narrow{max-width:1020px}
.topbar{background:var(--primary-ink);color:rgba(255,255,255,.68);font-size:13px}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;min-height:38px;gap:20px}
.topbar-inner span{white-space:nowrap}
.topbar-links{display:flex;gap:20px}
.topbar-links a{color:rgba(255,255,255,.82);font-size:13px}
.topbar-links a:hover{color:#fff}
.site-header{position:sticky;top:0;z-index:999;background:rgba(246,244,238,.94);backdrop-filter:blur(12px);border-bottom:1px solid rgba(218,214,202,.8);box-shadow:0 2px 12px rgba(20,45,40,.04)}
.header-row{height:72px;display:flex;align-items:center;justify-content:space-between;gap:28px}
.brand-logo{display:inline-flex;align-items:center;gap:10px;flex-shrink:0}
.brand-symbol{background:var(--primary);color:#fff;font-weight:800;font-size:17px;letter-spacing:.03em;padding:7px 11px;border-radius:9px}
.brand-name{font-size:20px;font-weight:800;color:var(--primary-ink);white-space:nowrap}
.main-nav{display:flex;align-items:center;gap:34px}
.main-nav a{font-size:15px;color:var(--text);padding:8px 2px;position:relative;font-weight:500;white-space:nowrap}
.main-nav a:after{content:'';position:absolute;left:0;bottom:0;width:0;height:2px;background:var(--accent);border-radius:2px;transition:width .24s}
.main-nav a:hover:after{width:100%}
.main-nav a.active{color:var(--primary);font-weight:600}
.main-nav a.active:after{width:100%}
.header-actions{display:flex;align-items:center;gap:12px}
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:0 24px;border-radius:10px;font-weight:600;font-size:15px;line-height:1;border:none;transition:transform .2s,box-shadow .2s,background .2s,color .2s;white-space:nowrap}
.btn:focus-visible{outline:3px solid var(--accent-light);outline-offset:2px}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-dark);color:#fff;transform:translateY(-2px);box-shadow:0 10px 26px rgba(18,59,51,.18)}
.btn-outline{background:transparent;border:1px solid var(--primary);color:var(--primary)}
.btn-outline:hover{background:rgba(30,78,64,.08);border-color:var(--primary-dark);color:var(--primary-dark);transform:translateY(-2px)}
.btn-nav{background:var(--accent);color:#fff;height:46px;padding:0 22px}
.btn-nav:hover{background:var(--accent-light);color:#fff;transform:translateY(-2px);box-shadow:var(--shadow-hover)}
.nav-toggle{display:none;width:44px;height:44px;border:1px solid var(--border);background:#fff;border-radius:10px;flex-direction:column;align-items:center;justify-content:center;gap:5px;margin-left:4px;transition:border-color .2s}
.nav-toggle:hover{border-color:var(--accent)}
.nav-toggle span{width:20px;height:2px;background:var(--primary);border-radius:2px;transition:transform .25s,opacity .25s}
.nav-toggle.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle.open span:nth-child(2){opacity:0}
.nav-toggle.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.post-main{padding:32px 0 88px}
.breadcrumb{display:flex;align-items:center;flex-wrap:wrap;gap:8px;font-size:14px;color:var(--muted);padding:6px 0 24px}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--primary)}
.crumb-sep{color:#A9B2AD}
.crumb-current{color:var(--text);font-weight:500}
.post-card{background:var(--white);border:1px solid var(--border);border-radius:var(--radius-lg);box-shadow:var(--shadow);padding:52px 48px 40px;margin-bottom:24px}
.post-head{max-width:760px;margin:0 auto;text-align:center}
.post-cats{display:flex;justify-content:center;gap:8px;margin-bottom:18px}
.cat-pill{display:inline-flex;align-items:center;padding:6px 16px;border-radius:999px;background:var(--surface);color:var(--primary);font-size:13px;font-weight:600;border:1px solid transparent}
.article-h1{font-size:clamp(28px,3vw,38px);line-height:1.3;font-weight:800;letter-spacing:-.01em;color:var(--primary-ink)}
.post-meta{display:flex;justify-content:center;flex-wrap:wrap;gap:18px;margin-top:22px;color:var(--muted);font-size:14px}
.meta-item{display:inline-flex;align-items:center;gap:6px}
.meta-item svg{width:16px;height:16px;stroke:var(--accent);flex:none}
.post-cover{margin:40px auto 0;max-width:840px}
.post-cover img{width:100%;height:auto;max-height:460px;object-fit:cover;border-radius:16px}
.post-content{max-width:760px;margin:42px auto 0;font-size:16.5px;line-height:1.85;color:var(--text)}
.post-content p{margin:0 0 1.4em}
.post-content h2{margin:1.8em 0 .7em;font-size:24px;color:var(--primary-ink);line-height:1.4}
.post-content h3{margin:1.6em 0 .6em;font-size:19px;color:var(--primary-dark)}
.post-content ul,.post-content ol{margin:0 0 1.4em;padding-left:1.5em}
.post-content ul li{list-style:disc;margin-bottom:.45em}
.post-content ol li{list-style:decimal;margin-bottom:.45em}
.post-content blockquote{margin:1.6em 0;padding:18px 24px;border-left:4px solid var(--accent);background:var(--bg);border-radius:8px 16px 16px 8px;color:var(--primary-dark)}
.post-content img{border-radius:14px;margin:1.8em auto;height:auto}
.post-content a{text-decoration:underline;text-underline-offset:3px}
.post-content a:hover{color:var(--accent)}
.post-content table{width:100%;border-collapse:collapse;margin:1.4em 0;font-size:15px}
.post-content th,.post-content td{border:1px solid var(--border);padding:10px 12px;text-align:left}
.post-content th{background:var(--bg);color:var(--primary-ink)}
.post-bottom{max-width:760px;margin:44px auto 0;padding-top:28px;border-top:1px solid var(--border)}
.post-tags{display:flex;flex-wrap:wrap;gap:10px;justify-content:center}
.post-tag{display:inline-flex;align-items:center;padding:7px 16px;background:var(--surface);color:var(--primary);border-radius:999px;font-size:13px;font-weight:500;transition:background .2s,color .2s}
.post-tag:hover{background:rgba(30,78,64,.14);color:var(--primary-ink)}
.post-pagination{display:flex;justify-content:space-between;gap:20px;margin-top:30px}
.post-page-link{display:flex;flex-direction:column;gap:2px;padding:14px 18px;border:1px solid var(--border);border-radius:12px;background:var(--bg);color:var(--text);font-size:14px;min-width:0;transition:border-color .2s,background .2s,box-shadow .2s}
.post-page-link:hover{border-color:var(--accent);background:#fff;box-shadow:var(--shadow)}
.post-page-link.next{align-items:flex-end}
.post-page-link .dir{color:var(--muted);font-size:12px}
.post-page-link:hover .dir{color:var(--primary)}
.related-section{background:var(--surface);padding:64px 0;margin-top:24px}
.section-title-row{display:flex;align-items:center;justify-content:space-between;gap:20px;padding-bottom:10px}
.section-title-row h2{font-size:26px;color:var(--primary-ink)}
.section-title-row a{font-size:14px;color:var(--primary);font-weight:600}
.section-title-row a:hover{color:var(--accent)}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:24px}
.related-card{display:block;background:var(--white);border:1px solid var(--border);border-radius:16px;overflow:hidden;box-shadow:var(--shadow);transition:transform .24s,border-color .24s,box-shadow .24s;height:100%}
.related-card:hover{transform:translateY(-6px);border-color:var(--accent);box-shadow:var(--shadow-hover)}
.related-thumb{height:172px;background:var(--surface);overflow:hidden}
.related-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s}
.related-card:hover .related-thumb img{transform:scale(1.04)}
.related-body{padding:20px 20px 22px}
.related-body h3{font-size:17px;line-height:1.5;color:var(--primary-ink);margin-bottom:8px}
.related-body p{font-size:14px;color:var(--muted);line-height:1.65;margin:0}
.article-back{padding:44px 0 0;display:flex;gap:16px;justify-content:center;flex-wrap:wrap}
.article-back .btn{min-width:170px}
.article-empty{max-width:720px;margin:40px auto 0;background:#fff;border:1px solid var(--border);border-radius:var(--radius-lg);box-shadow:var(--shadow);padding:56px 40px;text-align:center}
.article-empty svg{width:64px;height:64px;stroke:var(--accent);margin:0 auto 20px}
.article-empty h2{font-size:30px;margin-bottom:14px;color:var(--primary-ink)}
.article-empty p{color:var(--muted);max-width:440px;margin:0 auto 30px}
.footer{background:var(--primary-ink);color:rgba(255,255,255,.78)}
.footer-top{padding:62px 0 40px}
.footer-grid{max-width:1200px;margin:0 auto;padding:0 24px;display:grid;grid-template-columns:2fr 1fr 1fr 1.4fr;gap:48px}
.footer-brand h3{color:#fff;font-size:21px;margin-bottom:14px}
.footer-brand p{color:#7F9990;font-size:14px;line-height:1.78;max-width:320px;margin:0}
.footer-col h4{color:#fff;font-size:16px;margin-bottom:16px;font-weight:600}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a{color:#AEC0B9;font-size:14px;transition:color .2s,padding-left .2s}
.footer-col a:hover{color:#fff;padding-left:4px}
.footer-contact li{display:flex;align-items:flex-start;gap:8px;color:#AEC0B9;font-size:14px;line-height:1.6}
.footer-contact svg{width:18px;height:18px;flex:none;stroke:var(--accent);margin-top:3px}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12)}
.footer-bottom-inner{max-width:1200px;margin:0 auto;padding:20px 24px;display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap}
.copyright-line{color:#7F9990;font-size:13px;display:flex;gap:8px;flex-wrap:wrap}
.footer-links{display:flex;gap:20px;flex-wrap:wrap}
.footer-links a{color:#AEC0B9;font-size:13px}
.footer-links a:hover{color:#fff}
@media (max-width:1180px){
  .main-nav{gap:22px}
  .footer-grid{gap:32px}
}
@media (max-width:992px){
  .main-nav{position:fixed;top:72px;left:0;width:100%;background:#fff;display:flex;flex-direction:column;align-items:flex-start;gap:6px;padding:18px 28px 24px;box-shadow:0 18px 40px rgba(20,45,40,.12);transform:translateY(-12px);opacity:0;pointer-events:none;transition:opacity .22s,transform .22s;z-index:998;border-bottom:1px solid var(--border)}
  .main-nav.open{opacity:1;transform:translateY(0);pointer-events:auto}
  .main-nav a{font-size:16px;padding:10px 2px;width:100%}
  .main-nav a:after{display:none}
  .main-nav a.active{color:var(--accent)}
  .nav-toggle{display:inline-flex}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
  .related-grid{grid-template-columns:repeat(2,1fr)}
  .post-card{padding:40px 32px 34px}
}
@media (max-width:768px){
  .post-main{padding:20px 0 64px}
  .topbar{display:none}
  .post-card{padding:30px 22px 26px;border-radius:16px}
  .article-h1{font-size:27px}
  .post-meta{gap:12px;flex-direction:column;align-items:center}
  .post-pagination{flex-direction:column}
  .post-page-link.next{align-items:flex-start}
  .related-section{padding:48px 0}
  .related-grid{gap:16px}
  .section-title-row{align-items:flex-start;flex-direction:column;gap:10px}
  .article-back{padding-top:30px}
  .article-empty{padding:40px 20px}
  .footer-top{padding:48px 0 24px}
}
@media (max-width:576px){
  .brand-name{font-size:16px}
  .brand-symbol{font-size:14px;padding:6px 9px}
  .header-row{gap:16px}
  .btn-nav{min-width:96px;padding:0 14px;height:42px;font-size:14px}
  .nav-toggle{width:38px;height:38px}
  .topbar-links{display:none}
  .header-actions{gap:4px}
  .related-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom-inner{flex-direction:column;justify-content:flex-start;align-items:flex-start;padding:18px 24px}
  .btn{width:100%}
  .article-back{flex-direction:column;padding-left:24px;padding-right:24px}
  .breadcrumb{font-size:13px}
  .post-content{font-size:15.5px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
}

/* roulang page: category2 */
:root {
  --primary: #1E4E40;
  --primary-deep: #123B33;
  --primary-ink: #0B2A24;
  --accent: #B98A4F;
  --accent-light: #D2AE74;
  --accent-deep: #9E7134;
  --bg: #F6F4EE;
  --surface: #FFFDF8;
  --surface-alt: #ECE9DF;
  --text: #1F2C28;
  --muted: #53615D;
  --border: #DAD6CA;
  --white: #FFFFFF;
  --danger: #C64F4F;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 18px;
  --shadow: 0 10px 30px rgba(20,45,40,0.08);
  --shadow-hover: 0 16px 38px rgba(20,45,40,0.14);
  --shadow-nav: 0 8px 24px rgba(20,45,40,0.09);
  --container: 1200px;
  --ease: cubic-bezier(.25,.8,.25,1);
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: "PingFang SC", "HarmonyOS Sans SC", "Miui", "Microsoft YaHei", "Noto Sans SC", -apple-system, BlinkMacSystemFont, sans-serif;
  font-size: 16px;
  line-height: 1.75;
  min-height: 100vh;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
ul, ol { list-style: none; }
input, textarea, select, button { font: inherit; }

h1, h2, h3, h4, h5, h6 { font-weight: 700; color: var(--text); line-height: 1.3; }
h2 { font-size: clamp(24px, 3vw, 36px); letter-spacing: -0.01em; }

.container { width: min(var(--container), 100% - 32px); margin-inline: auto; }
.section { padding: clamp(64px, 8vw, 110px) 0; position: relative; }
.section-compact { padding: clamp(48px, 6vw, 80px) 0; }

.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 13px; font-weight: 700; letter-spacing: .04em;
  color: var(--accent-deep); text-transform: uppercase;
}
.eyebrow::before { content:""; width: 24px; height: 2px; background: var(--accent); border-radius: 99px; }
.eyebrow-center { justify-content: center; }
.eyebrow-light { color: var(--accent-light); }

.section-head { margin-bottom: 44px; max-width: 760px; }
.section-head.centered { margin-inline: auto; text-align: center; }
.section-head .section-sub { margin-top: 16px; font-size: 17px; color: var(--muted); line-height: 1.8; }

.sr-only {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  min-height: 48px; padding: 0 26px;
  font-size: 16px; font-weight: 700; line-height: 1.2;
  border-radius: var(--radius-sm);
  transition: all .28s var(--ease);
  border: 1px solid transparent;
  text-align: center;
  white-space: nowrap;
}
.btn svg { width: 18px; height: 18px; flex-shrink: 0; }
.btn-primary { background: var(--primary-deep); color: #fff; box-shadow: 0 8px 20px rgba(18,59,51,0.2); }
.btn-primary:hover { background: var(--primary); transform: translateY(-2px); box-shadow: var(--shadow-hover); }
.btn-primary:active { transform: translateY(0); box-shadow: 0 4px 12px rgba(18,59,51,.14); }
.btn-accent { background: var(--accent); color: #fff; box-shadow: 0 8px 22px rgba(185,138,79,.28); }
.btn-accent:hover { background: var(--accent-deep); transform: translateY(-2px); box-shadow: 0 14px 28px rgba(185,138,79,.34); }
.btn-accent:active { transform: translateY(0); }
.btn-light { background: #fff; color: var(--primary); }
.btn-light:hover { background: var(--surface-alt); transform: translateY(-2px); box-shadow: var(--shadow-hover); }
.btn-outline { background: transparent; color: #fff; border-color: rgba(255,255,255,.65); }
.btn-outline:hover { background: rgba(255,255,255,.12); border-color: #fff; transform: translateY(-2px); }
.btn-outline-dark { background: transparent; color: var(--primary); border-color: var(--primary); }
.btn-outline-dark:hover { background: rgba(30,78,64,.08); transform: translateY(-2px); }
.btn:focus-visible,
.summary-btn:focus-visible, 
.faq-summary:focus-visible,
a:focus-visible { outline: 3px solid var(--accent-light); outline-offset: 3px; }

.badge {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 7px 14px; border-radius: 99px;
  font-size: 13px; font-weight: 600; color: var(--primary);
  background: rgba(30,78,64,.09); border: 1px solid rgba(30,78,64,.12);
}
.badge .dot { width: 6px; height: 6px; background: var(--accent); border-radius: 99px; }

.topbar {
  background: var(--primary-ink);
  color: rgba(255,255,255,.8);
  font-size: 12.6px;
  padding: 8px 0;
}
.topbar-inner { display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.topbar p { display: flex; align-items: center; gap: 6px; }
.topbar strong { color: #DCEBE7; font-weight: 600; }
.topbar .topbar-links { display: flex; align-items: center; gap: 6px; }
.topbar .topbar-links a { color: rgba(255,255,255,.72); transition: color .2s; }
.topbar .topbar-links a:hover { color: #fff; }
.topbar .topbar-links .sep { opacity:.28; }

.site-header { position: sticky; top: 0; z-index: 999; background: rgba(246,244,238,.96); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px); transition: box-shadow .3s, border-color .3s; border-bottom: 1px solid transparent; }
.site-header.scrolled { box-shadow: var(--shadow-nav); border-bottom-color: rgba(18,59,51,.08); }
.header-inner { height: 72px; display: flex; align-items: center; gap: 20px; position: relative; }
.brand { display: inline-flex; align-items: center; gap: 10px; flex-shrink: 0; }
.brand-logo {
  width: 40px; height: 40px; border-radius: 12px;
  background: linear-gradient(145deg, var(--primary), var(--primary-deep));
  display: flex; align-items: center; justify-content: center;
  font-size: 14px; font-weight: 800; color: #fff; letter-spacing: .02em;
  box-shadow: inset 0 0 0 1px rgba(255,255,255,.15), 0 8px 18px rgba(15,45,38,.2);
}
.brand-text { font-size: 21px; font-weight: 800; color: var(--primary-ink); letter-spacing: .01em; line-height: 1.2; }
.brand-text small { display: block; font-size: 10px; font-weight: 600; letter-spacing: .24em; color: var(--accent-deep); margin-top: 1px; }
.main-nav { flex: 1; display: flex; justify-content: center; }
.main-nav a {
  position: relative; display: inline-flex; align-items: center; gap: 8px;
  margin: 0 12px; padding: 10px 12px;
  font-size: 16px; font-weight: 600; color: var(--muted);
  border-radius: 8px;
  transition: color .25s, background .25s;
}
.main-nav a::after {
  content: ""; position: absolute; left: 50%; bottom: 4px; transform: translateX(-50%) scaleX(.4);
  width: 22px; height: 3px; border-radius: 99px; background: var(--accent);
  opacity: 0; transition: all .3s var(--ease);
}
.main-nav a:hover { color: var(--primary); background: rgba(30,78,64,.06); }
.main-nav a.active { color: var(--primary); font-weight: 700; }
.main-nav a.active::after, .main-nav a:hover::after { opacity: 1; transform: translateX(-50%) scaleX(1); }
.nav-actions { display: flex; align-items: center; gap: 10px; margin-left: auto; flex-shrink: 0; }
.nav-contact.mobile-tel { display: none; width: 40px; height: 40px; border-radius: 10px; background: var(--surface-alt); color: var(--primary); align-items: center; justify-content: center; }
.nav-cta { min-height: 44px; padding: 0 22px; font-size: 15px; }
.nav-toggle { display: none; width: 42px; height: 42px; border-radius: 10px; background: var(--surface-alt); color: var(--primary-ink); align-items: center; justify-content: center; }
.nav-toggle svg { width: 20px; height: 20px; }

.page-hero { position: relative; background: url("/assets/images/backpic/back-2.png") center/cover no-repeat; }
.page-hero::before { content:""; position: absolute; inset: 0; background: linear-gradient(105deg, rgba(6,26,22,.95) 0%, rgba(11,42,36,.82) 42%, rgba(32,83,68,.58) 100%); z-index: 1; }
.hero-inner { position: relative; z-index: 2; color: #fff; padding: clamp(70px, 9vw, 116px) 0 clamp(60px, 8vw, 110px); }
.breadcrumb { display: flex; flex-wrap: wrap; align-items: center; gap: 6px; font-size: 14px; color: rgba(255,255,255,.7); margin-bottom: 30px; }
.breadcrumb a { transition: color .2s; }
.breadcrumb a:hover { color: var(--accent-light); }
.breadcrumb .sep { opacity: .45; }
.hero-copy { max-width: 820px; }
.eyebrow-hero { display: inline-flex; color: var(--accent-light); font-size: 14px; gap: 12px; align-items: center; border: 1px solid rgba(255,255,255,.2); padding: 7px 14px; border-radius: 99px; background: rgba(255,255,255,.06); margin-bottom: 22px; }
.hero-copy h1 { font-size: clamp(34px, 4.6vw, 58px); line-height: 1.17; letter-spacing: -0.02em; margin: 0 0 14px; color: #fff; font-weight: 800; }
.hero-copy .lead { font-size: clamp(16px, 2vw, 20px); line-height: 1.8; color: rgba(255,255,255,.9); max-width: 760px; margin-bottom: 36px; }
.hero-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 14px; }
.hero-meta { display: flex; flex-wrap: wrap; gap: 10px 14px; margin-top: 42px; }
.hero-meta span { display: inline-flex; align-items: center; gap: 8px; font-size: 14px; background: rgba(4,19,16,.45); border: 1px solid rgba(255,255,255,.16); padding: 8px 15px; border-radius: 99px; color: rgba(255,255,255,.9); }
.hero-meta svg { width: 16px; height: 16px; color: var(--accent-light); }

.section-light { background: var(--bg); }
.section-surface { background: var(--surface); }

.overview-grid { display: grid; grid-template-columns: minmax(0,1.12fr) minmax(0,.88fr); gap: clamp(36px, 6%, 72px); align-items: center; }
.overview-media { position: relative; border-radius: 22px; overflow: hidden; box-shadow: var(--shadow); }
.overview-media img { width: 100%; height: 100%; min-height: 260px; object-fit: cover; transition: transform .6s ease; }
.overview-media:hover img { transform: scale(1.03); }
.media-tag { position: absolute; left: 20px; bottom: 20px; display: flex; align-items: center; gap: 10px; background: rgba(9,32,27,.7); backdrop-filter: blur(10px); color: #fff; padding: 10px 17px; border-radius: 99px; border: 1px solid rgba(255,255,255,.18); font-size: 14px; }
.overview-content h2 { margin-bottom: 12px; }
.overview-content p { color: var(--muted); font-size: 16.5px; line-height: 1.85; }
.lead-list { display: grid; gap: 0; margin-top: 26px; }
.lead-list li { padding: 14px 0 6px; border-top: 1px solid var(--border); display: flex; gap: 14px; }
.lead-list .l-icon { flex-shrink: 0; width: 42px; height: 42px; background: rgba(30,78,64,.1); color: var(--primary); border-radius: 12px; display: flex; align-items: center; justify-content: center; }
.lead-list .l-icon svg { width: 20px; height: 20px; }
.lead-list h3 { font-size: 17px; }
.lead-list p { color: var(--muted); font-size: 14.5px; line-height: 1.7; }

.info-tags { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 26px; }
.info-tags .badge { background: transparent; border-color: var(--border); color: var(--primary); }

.section-title { margin-bottom: 42px; }
.section-title .subtitle { color: var(--muted); margin-top: 14px; font-size: 17px; }

.topic-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.topic-card { position: relative; background: var(--surface); border: 1px solid rgba(218,214,202,.9); border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow); transition: transform .35s var(--ease), box-shadow .35s var(--ease), border-color .35s; }
.topic-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-hover); border-color: rgba(185,138,79,.45); }
.topic-card .topic-media { aspect-ratio: 16 / 8.5; width: 100%; overflow: hidden; }
.topic-card .topic-media img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s ease; }
.topic-card:hover .topic-media img { transform: scale(1.04); }
.topic-card-body { padding: 28px 26px; }
.topic-card-body p { color: var(--muted); font-size: 15px; line-height: 1.8; margin-top: 10px; }
.topic-meta { display: flex; align-items: center; gap: 10px; margin-bottom: 6px; }
.topic-title { font-size: 20px; }
.topic-link { display: inline-flex; align-items: center; gap: 7px; margin-top: 20px; font-size: 15px; font-weight: 700; color: var(--primary); transition: color .25s; }
.topic-link:hover { color: var(--accent-deep); }
.topic-link svg { width: 16px; height: 16px; transition: transform .25s; }
.topic-link:hover svg { transform: translateX(4px); }

.topic-wide { display: grid; grid-template-columns: 1.02fr .98fr; grid-column: 1 / -1; }
.topic-wide .topic-media { aspect-ratio: 16/9; height: 100%; min-height: 260px; }
.topic-stack { display: grid; gap: 24px; }
.topic-stack .topic-card-body { padding: 24px; }
.topic-stack .topic-title { font-size: 19px; }

.process-section { background: var(--primary-ink); color: #E7EFEB; overflow: hidden; }
.process-section::before { content:""; position: absolute; inset: 0; background: linear-gradient(90deg, rgba(30,78,64,.35), rgba(11,42,36,.1)); pointer-events: none; }
.process-section h2 { color: #fff; }
.process-section .section-sub { color: rgba(255,255,255,.7); }
.process-steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; position: relative; counter-reset: steps; }
.step-item { background: rgba(255,255,255,.05); border: 1px solid rgba(255,255,255,.13); backdrop-filter: blur(8px); border-radius: var(--radius-lg); padding: 30px 24px; transition: background .3s, transform .3s; }
.step-item:hover { background: rgba(255,255,255,.1); transform: translateY(-4px); }
.step-no { display: flex; align-items: center; justify-content: center; width: 40px; height: 40px; border-radius: 50%; background: var(--accent); color: #fff; font-weight: 800; font-size: 17px; margin-bottom: 18px; box-shadow: 0 8px 18px rgba(0,0,0,.2); }
.process-steps h3 { color: #fff; font-size: 17px; margin-bottom: 8px; }
.process-steps p { color: rgba(255,255,255,.7); font-size: 14.5px; line-height: 1.75; }

.recommend-grid { display: grid; grid-template-columns: 1.04fr .96fr; gap: 24px; }
.recommend-main { background: var(--primary-deep); color: #fff; border-radius: var(--radius-lg); padding: 34px; position: relative; overflow: hidden; display: flex; flex-direction: column; justify-content: center; }
.recommend-main::after { content:""; position: absolute; top: -40px; right: -30px; width: 180px; height: 180px; border-radius: 50%; background: rgba(210,174,116,.14); }
.recommend-main .quote-mark { font-size: 84px; line-height: 1; color: var(--accent); opacity: .6; }
.recommend-main h3 { color: #fff; font-size: 22px; margin: 6px 0 12px; }
.recommend-main p { color: rgba(255,255,255,.78); font-size: 15px; line-height: 1.85; }
.recommend-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 28px; position: relative; z-index: 2; }
.recommend-tags span { font-size: 13px; border: 1px solid rgba(255,255,255,.2); padding: 5px 12px; border-radius: 99px; color: rgba(255,255,255,.9); }
.recommend-feeds { display: grid; gap: 16px; }
.feed-mini { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-md); padding: 20px 22px; transition: all .3s var(--ease); }
.feed-mini:hover { transform: translateY(-3px); box-shadow: var(--shadow-hover); border-color: rgba(185,138,79,.5); }
.feed-mini h4 { font-size: 16px; margin-bottom: 5px; }
.feed-mini p { color: var(--muted); font-size: 14px; line-height: 1.7; }
.feed-mini .feed-meta { display: flex; gap: 12px; margin-top: 12px; color: var(--muted); font-size: 12.6px; }

.faq-wrap { border: 1px solid var(--border); border-radius: 18px; background: var(--surface); overflow: hidden; }
.faq-item { border-bottom: 1px solid var(--border); }
.faq-item:last-child { border-bottom: 0; }
.faq-summary { display: flex; align-items: center; gap: 16px; width: 100%; padding: 22px 24px; text-align: left; color: var(--text); transition: background .25s; }
.faq-summary:hover { background: rgba(30,78,64,.035); }
.faq-summary .faq-num { display: inline-flex; align-items: center; justify-content: center; width: 30px; height: 30px; border-radius: 9px; background: rgba(30,78,64,.09); color: var(--primary); font-weight: 800; font-size: 14px; flex-shrink: 0; }
.faq-summary h3 { font-size: 17px; flex: 1; font-weight: 600; line-height: 1.5; }
.faq-icon { width: 30px; height: 30px; flex-shrink: 0; display: flex; align-items: center; justify-content: center; border-radius: 50%; background: var(--surface-alt); color: var(--primary); transition: all .3s; }
.faq-icon svg { width: 15px; height: 15px; transition: transform .35s var(--ease); }
.faq-item[open] .faq-icon { background: var(--primary); color: #fff; }
.faq-item[open] .faq-icon svg { transform: rotate(45deg); }
.faq-item .faq-answer { padding: 0 60px 24px; }
.faq-item .faq-answer p { color: var(--muted); font-size: 15px; line-height: 1.9; }
details summary::-webkit-details-marker { display: none; }
summary { list-style: none; }

.cta-panel { background: url("/assets/images/backpic/back-1.webp") center/cover no-repeat; border-radius: 24px; overflow: hidden; position: relative; color: #fff; }
.cta-panel::before { content:""; position: absolute; inset: 0; background: rgba(11,42,36,.88); }
.cta-inner { position: relative; z-index: 2; padding: clamp(42px, 7vw, 76px); display: grid; grid-template-columns: 1.15fr .85fr; gap: 34px; align-items: center; }
.cta-inner h2 { color: #fff; font-size: clamp(25px,3.4vw,38px); margin-bottom: 12px; }
.cta-inner p { color: rgba(255,255,255,.78); font-size: 17px; line-height: 1.85; max-width: 620px; }
.cta-btns { display: flex; flex-wrap: wrap; gap: 12px; justify-content: flex-start; }
.cta-btns .btn { min-width: 150px; }

.footer { background: var(--primary-ink); color: rgba(255,255,255,.72); position: relative; }
.footer::before { content:""; position:absolute; top:0; left:0; right:0; height:2px; background: linear-gradient(90deg, transparent, rgba(185,138,79,.8), transparent); }
.footer-top { padding: 58px 0 40px; }
.footer-grid { display: grid; grid-template-columns: 1.45fr .85fr 1fr 1.15fr; gap: 48px 40px; }
.footer-brand h3 { color: #fff; font-size: 20px; font-weight: 800; margin-bottom: 12px; letter-spacing: .01em; }
.footer-brand h3 span { color: var(--accent-light); }
.footer-brand p { font-size: 14px; line-height: 1.8; color: rgba(255,255,255,.55); max-width: 330px; }
.footer-col h4 { color: var(--accent-light); font-size: 15px; font-weight: 700; margin-bottom: 18px; letter-spacing: .02em; }
.footer-col ul li { margin-bottom: 11px; }
.footer-col li a { color: rgba(255,255,255,.68); font-size: 14.5px; transition: color .2s; }
.footer-col li a:hover { color: #fff; }
.footer-contact li { display: flex; align-items: flex-start; gap: 10px; font-size: 14px; color: rgba(255,255,255,.68); line-height: 1.6; }
.footer-contact svg { width: 17px; height: 17px; margin-top: 2px; color: var(--accent); flex-shrink: 0; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.1); padding: 20px 0; }
.footer-bottom .container { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 10px; }
.copyright-line { display: flex; flex-wrap: wrap; gap: 4px; font-size: 13px; color: rgba(255,255,255,.5); }
.footer-links { display: flex; flex-wrap: wrap; gap: 8px 18px; font-size: 13px; }
.footer-links a { color: rgba(255,255,255,.55); transition: color .2s; position: relative; }
.footer-links a:hover { color: #fff; }
.footer-links a::after { content:""; position:absolute; left:0; bottom:-3px; width:0; height:1px; background: var(--accent); transition: width .25s; }
.footer-links a:hover::after { width: 100%; }

@media (max-width: 1180px) {
  .header-inner { gap: 12px; }
  .main-nav a { margin: 0 8px; }
}
@media (max-width: 992px) {
  .site-header { box-shadow: var(--shadow-nav); }
  .nav-toggle { display: inline-flex; }
  .main-nav {
    position: absolute; top: calc(100% + 10px); right: 0; left: 0;
    flex-direction: column; align-items: stretch;
    background: rgba(246,244,238,.98); backdrop-filter: blur(14px);
    border: 1px solid rgba(18,59,51,.07);
    border-radius: 18px; box-shadow: var(--shadow-hover);
    padding: 12px; gap: 4px;
    display: none;
  }
  .main-nav.open { display: flex; }
  .main-nav a { margin: 2px 0; padding: 14px 16px; }
  .main-nav a::after { display: none; }
  .main-nav a.active, .main-nav a:hover { background: rgba(30,78,64,.08); }
  .brand-text { font-size: 18px; }
  .overview-grid { grid-template-columns: 1fr; }
  .process-steps { grid-template-columns: repeat(2, 1fr); }
  .recommend-grid { grid-template-columns: 1fr; }
  .cta-inner { grid-template-columns: 1fr; padding: 50px 38px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  .topbar-links .hide-sm { display: none; }
  .header-inner { height: 64px; }
  .hero-inner { padding: 56px 0 76px; }
  .hero-copy .lead { margin-bottom: 24px; }
  .topic-grid { grid-template-columns: 1fr; }
  .topic-wide { grid-template-columns: 1fr; }
  .topic-wide .topic-media { min-height: 200px; }
  .section-head .section-sub { font-size: 16px; }
  .section { padding: 52px 0; }
}
@media (max-width: 576px) {
  .container { width: min(var(--container), 100% - 24px); }
  .site-header .btn-nav-text { display: none; }
  .btn { padding: 0 20px; }
  .hero-copy h1 { font-size: 30px; }
  .hero-meta span { width: 100%; }
  .hero-actions .btn { width: 100%; }
  .nav-cta { width: 44px; padding: 0; border-radius: 10px; color: transparent; font-size: 0; background-color: var(--accent); background-position: center; background-repeat: no-repeat; background-size: 20px; }
  .nav-cta::after { content: "联系"; font-size: 12px; color: var(--primary); }
  .nav-cta { color: var(--primary-ink); width: auto; padding: 0 16px; font-size: 15px; min-height: 40px; }
  .nav-cta::after { display: none; }
  .overview-media img { min-height: 200px; }
  .process-steps { grid-template-columns: 1fr; }
  .faq-summary { padding: 18px 16px; }
  .faq-summary h3 { font-size: 15.5px; }
  .faq-item .faq-answer { padding: 0 46px 20px; }
  .cta-inner { padding: 36px 24px; }
  .cta-btns .btn { width: 100%; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer-top { padding: 44px 0 28px; }
  .footer-bottom .container { flex-direction: column; text-align: center; }
}