/* roulang page: index */
:root{
  --bg:#F6F3EC;
  --bg-deep:#E9E4D8;
  --card:#FFFFFF;
  --ink:#1B1C1A;
  --body:#40413C;
  --muted:#78776F;
  --line:#E2DDD1;
  --line-deep:#B7B2A3;
  --primary:#175E54;
  --primary-hover:#10473F;
  --accent:#E15A32;
  --accent-soft:#F9E8E0;
  --primary-soft:#EAF2EF;
  --radius-sm:6px;
  --radius-md:10px;
  --radius-lg:14px;
  --shadow-xs:0 1px 2px rgba(27,28,26,.04);
  --shadow-sm:0 6px 18px rgba(27,28,26,.06);
  --shadow-lg:0 18px 40px rgba(27,28,26,.10);
  --font:"PingFang SC","Microsoft YaHei","Noto Sans SC","HarmonyOS Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{margin:0;font-family:var(--font);font-size:16px;line-height:1.8;background:var(--bg);color:var(--body);-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;}
img,svg{display:block;max-width:100%;}
h1,h2,h3,h4{color:var(--ink);line-height:1.3;margin:0;}
p{margin:0;}
a{color:inherit;text-decoration:none;transition:color .2s ease,border-color .2s ease,background .2s ease;}
button,input,select,textarea{font:inherit;color:inherit;}
button{border:0;background:none;cursor:pointer;}
ul,ol{list-style:none;margin:0;padding:0;}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:4px;}
body.overflow-hidden{overflow:hidden;}
.js .reveal-up{opacity:0;transform:translateY(12px);transition:opacity .7s ease,transform .7s ease;}
.js .reveal-up.is-in{opacity:1;transform:none;}
.js .reveal-up.delay-1{transition-delay:.08s;}
.js .reveal-up.delay-2{transition-delay:.16s;}
.js .reveal-up.delay-3{transition-delay:.24s;}

.container{max-width:1200px;margin-left:auto;margin-right:auto;padding-left:24px;padding-right:24px;}
.section-block{padding:88px 0;}
.section-kicker{display:flex;align-items:center;gap:12px;font-size:12px;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:var(--primary);margin-bottom:14px;}
.section-kicker .kicker-num{display:inline-flex;align-items:center;justify-content:center;min-width:34px;height:22px;padding:0 6px;border:1px solid rgba(225,90,50,.45);border-radius:999px;color:var(--accent);font-size:11px;letter-spacing:.02em;}
.section-title{font-size:34px;font-weight:800;letter-spacing:-.01em;max-width:720px;}
.section-lead{max-width:640px;font-size:15px;line-height:1.9;color:var(--muted);margin-top:16px;}

.button{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:46px;padding:0 26px;border-radius:999px;font-size:15px;font-weight:600;line-height:1;transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease;border:1px solid transparent;}
.button:hover{transform:translateY(-2px);}
.button:active{transform:translateY(0) scale(.99);}
.button-primary{background:var(--primary);color:#fff;box-shadow:0 6px 14px rgba(23,94,84,.18);}
.button-primary:hover{background:var(--primary-hover);box-shadow:var(--shadow-sm);}
.button-ghost{background:transparent;color:var(--primary);border-color:#C7D6D0;}
.button-ghost:hover{background:rgba(23,94,84,.08);border-color:var(--primary);}
.button-light{background:#fff;color:var(--primary);}
.button-light:hover{background:#F2F6F4;}

/* Header */
.site-header{position:sticky;top:0;z-index:80;background:rgba(246,243,236,.86);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border-bottom:1px solid var(--line);}
.header-inner{position:relative;display:flex;align-items:center;min-height:72px;justify-content:space-between;}
.brand-logo{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;font-size:20px;font-weight:800;color:var(--primary);letter-spacing:-.02em;z-index:2;position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);}
.brand-logo .brand-icon{width:22px;height:22px;}
.nav-col{display:flex;align-items:center;gap:4px;min-height:44px;}
.nav-left{justify-content:flex-start;}
.nav-right{justify-content:flex-end;}
.nav-link{position:relative;padding:10px 14px;font-size:14px;font-weight:500;color:var(--body);border-radius:8px;}
.nav-link:after{content:"";position:absolute;left:14px;right:14px;bottom:4px;height:2px;background:var(--primary);border-radius:2px;transform:scaleX(0);transform-origin:center;transition:transform .25s ease;}
.nav-link:hover{color:var(--primary);}
.nav-link:hover:after,.nav-link.is-active:after{transform:scaleX(1);}
.nav-link.is-active{color:var(--ink);font-weight:600;}
.header-cta{margin-left:8px;}
.nav-toggle{display:none;align-items:center;justify-content:center;width:42px;height:42px;border-radius:10px;background:rgba(255,255,255,.6);border:1px solid var(--line);}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--primary);position:relative;transition:background .2s ease;}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;right:0;height:2px;border-radius:2px;background:var(--primary);transition:transform .25s ease;}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}
.nav-toggle[aria-expanded="true"] span{background:transparent;}
.nav-toggle[aria-expanded="true"] span::before{transform:translateY(6px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span::after{transform:translateY(-6px) rotate(-45deg);}
.mobile-menu{display:none;background:var(--bg);border-top:1px solid var(--line);}
.mobile-menu.open{display:block;}
.mobile-nav-list{padding:8px 0 16px;}
.mobile-nav-list a,.mobile-nav-list .mobile-btn{display:block;padding:13px 16px;font-size:15px;font-weight:500;border-bottom:1px solid rgba(226,221,209,.7);color:var(--body);}
.mobile-nav-list a:hover,.mobile-nav-list a.is-active{color:var(--primary);}
.mobile-cta-wrap{padding:16px;}
.mobile-cta-wrap .button{width:100%;border-radius:999px;}

/* Hero */
.hero{position:relative;padding:84px 0 60px;overflow:hidden;background:linear-gradient(180deg,rgba(246,243,236,.96) 0%,rgba(246,243,236,.74) 42%,rgba(246,243,236,.98) 100%),url('/assets/images/backpic/back-1.jpg') center/cover no-repeat;}
.hero-inner{text-align:center;max-width:950px;margin:0 auto;}
.hero-kicker{display:inline-flex;align-items:center;gap:10px;padding:7px 14px;border-radius:999px;background:rgba(255,255,255,.72);border:1px solid var(--line);font-size:12px;font-weight:600;letter-spacing:.08em;color:var(--primary);box-shadow:var(--shadow-xs);}
.hero-kicker:before{content:"";width:7px;height:7px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 4px rgba(225,90,50,.14);}
.hero-title{font-size:52px;line-height:1.22;font-weight:800;letter-spacing:-.025em;margin:26px auto 20px;max-width:860px;}
.hero-title .accent-border{border-bottom:4px solid rgba(225,90,50,.36);}
.hero-sub{max-width:720px;margin:0 auto;font-size:17px;line-height:1.9;color:var(--body);}
.hero-cta{display:flex;justify-content:center;flex-wrap:wrap;gap:14px;margin-top:34px;}
.hero-shortcuts{display:flex;align-items:center;justify-content:center;flex-wrap:wrap;gap:10px;margin-top:32px;padding:8px 0;}
.hero-shortcuts-label{font-size:13px;color:var(--muted);margin-right:6px;}
.chip{display:inline-flex;align-items:center;padding:7px 16px;border-radius:999px;border:1px solid var(--line);background:rgba(255,255,255,.82);font-size:13px;font-weight:500;color:var(--body);box-shadow:var(--shadow-xs);transition:all .22s ease;}
.chip:hover{border-color:#B7CFC8;color:var(--primary);background:#fff;transform:translateY(-2px);}
.hero-stats-wrap{background:rgba(255,255,255,.9);border:1px solid var(--line);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);margin-top:48px;padding:0 16px;backdrop-filter:blur(6px);}
.hero-stats{display:grid;grid-template-columns:repeat(4,1fr);}
.stat-card{padding:28px 18px 22px;text-align:center;border-right:1px solid var(--line);position:relative;}
.stat-card:last-child{border-right:0;}
.stat-card::before{content:"";position:absolute;top:0;left:50%;transform:translateX(-50%);width:34px;height:3px;border-radius:0 0 4px 4px;background:var(--accent);}
.stat-value{font-size:42px;line-height:1;font-weight:800;color:var(--primary);font-variant-numeric:tabular-nums;letter-spacing:-.02em;}
.stat-unit{font-size:13px;color:var(--muted);margin-top:10px;}
.stat-note{font-size:12px;color:var(--muted);border-top:1px solid var(--line);padding:13px 16px;text-align:left;letter-spacing:.02em;}
.hero-stat-compare-note{display:flex;align-items:center;gap:8px;}

/* Matrix */
.section-matrix{background:#fff;}
.matrix-wrap{margin-top:34px;}
.matrix-row{display:grid;grid-template-columns:44px 96px minmax(0,1fr) auto 130px 26px;align-items:center;gap:22px;background:var(--card);border:1px solid var(--line);border-radius:var(--radius-lg);padding:16px 20px;margin-top:12px;transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease,background .25s ease;}
.matrix-row:hover{transform:translateY(-4px);background:#FBFBF8;border-color:var(--line-deep);box-shadow:var(--shadow-sm);}
.matrix-row:hover .matrix-arrow{transform:translateX(5px);color:var(--accent);}
.matrix-index{font-family:Arial,Helvetica,sans-serif;font-size:14px;font-weight:700;color:var(--accent);width:34px;height:34px;display:flex;align-items:center;justify-content:center;border:1px solid rgba(225,90,50,.35);border-radius:50%;}
.matrix-thumb{width:96px;height:96px;border-radius:10px;overflow:hidden;background:#EFEDE6;position:relative;flex-shrink:0;}
.matrix-thumb img{width:100%;height:100%;object-fit:cover;}
.matrix-info h3{font-size:19px;font-weight:700;margin-bottom:6px;}
.matrix-info p{font-size:14px;color:var(--muted);line-height:1.85;max-width:520px;}
.matrix-tags{display:flex;flex-wrap:wrap;gap:8px;max-width:260px;}
.matrix-tags span{display:inline-block;padding:4px 10px;background:var(--primary-soft);border-radius:999px;font-size:12px;color:var(--primary);font-weight:500;white-space:nowrap;}
.matrix-meta{text-align:right;}
.matrix-meta strong{display:block;font-size:22px;line-height:1.2;font-weight:800;color:var(--ink);font-variant-numeric:tabular-nums;}
.matrix-meta span{font-size:12px;color:var(--muted);}
.matrix-arrow{display:flex;align-items:center;justify-content:center;color:var(--primary);transition:transform .25s ease,color .25s ease;}
.matrix-note{font-size:12px;color:var(--muted);border-top:1px solid var(--line);margin-top:40px;padding-top:18px;max-width:720px;line-height:1.8;}

/* Updates */
.section-updates{background:var(--bg);}
.updates-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius-lg);padding:34px 36px;box-shadow:var(--shadow-xs);max-width:900px;margin-top:34px;}
.updates-item{display:grid;grid-template-columns:104px 1fr;gap:20px;padding:20px 0;border-bottom:1px dashed var(--line);}
.updates-item:last-child{border-bottom:0;}
.updates-time{font-size:13px;color:var(--accent);font-weight:600;letter-spacing:.03em;}
.updates-item p{font-size:15px;line-height:1.9;color:var(--body);}
.updates-item p strong{color:var(--ink);font-weight:600;}
.updates-link{margin-top:18px;display:inline-flex;align-items:center;gap:6px;font-size:14px;color:var(--primary);font-weight:600;}
.updates-link:hover{color:var(--accent);}

/* Compare */
.section-compare{background:#fff;}
.compare-intro{display:flex;justify-content:space-between;align-items:flex-end;gap:32px;margin-bottom:36px;}
.compare-intro .section-lead{margin-top:0;max-width:420px;}
.compare-grid{display:grid;grid-template-columns:1fr 1fr;gap:40px;margin-top:36px;}
.compare-panel{border-radius:var(--radius-lg);padding:34px 32px 14px;background:#FAF9F5;border:1px solid var(--line);box-shadow:var(--shadow-xs);}
.compare-panel.compare-panel-green{background:var(--primary-soft);border-color:#CDE0D9;}
.compare-panel-title{display:flex;align-items:center;gap:12px;margin-bottom:26px;padding-bottom:18px;border-bottom:1px solid rgba(226,221,209,.7);}
.compare-panel-title .panel-icon{width:42px;height:42px;border-radius:12px;display:flex;align-items:center;justify-content:center;background:#EAE7DF;color:var(--muted);}
.compare-panel-green .panel-icon{background:var(--primary);color:#fff;}
.compare-panel-title h3{font-size:20px;font-weight:700;}
.compare-panel-title p{font-size:13px;color:var(--muted);}
.step-item{display:flex;gap:18px;position:relative;padding-bottom:24px;}
.step-item::before{content:"";position:absolute;left:20px;top:42px;bottom:0;border-left:2px dashed #CFCCBF;}
.compare-panel-green .step-item::before{border-color:#93B8AD;}
.step-item:last-child::before{display:none;}
.step-dot{position:relative;z-index:1;flex-shrink:0;width:42px;height:42px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:15px;font-weight:800;background:#ECE9E1;color:var(--muted);font-variant-numeric:tabular-nums;}
.compare-panel-green .step-dot{background:var(--primary);color:#fff;box-shadow:0 0 0 5px rgba(23,94,84,.12);}
.step-content{padding-top:7px;}
.step-content h4{font-size:15px;font-weight:700;color:var(--ink);margin-bottom:4px;}
.step-content p{font-size:14px;color:var(--muted);line-height:1.8;}
.compare-conclusion{display:flex;flex-wrap:wrap;align-items:center;gap:28px;margin-top:36px;background:var(--primary);color:#fff;border-radius:var(--radius-lg);padding:26px 32px;box-shadow:0 12px 30px rgba(23,94,84,.18);}
.conclusion-mark{width:48px;height:48px;flex-shrink:0;border-radius:50%;background:rgba(255,255,255,.15);display:flex;align-items:center;justify-content:center;}
.compare-conclusion-text{font-size:16px;line-height:1.8;flex:1;color:#EEF9F5;font-weight:500;}
.compare-conclusion-text strong{color:#fff;font-weight:800;}
.compare-arrow-note{margin-top:26px;background:rgba(225,90,50,.08);border-left:3px solid var(--accent);border-radius:0 8px 8px 0;padding:16px 20px;font-size:14px;color:var(--body);}

/* FAQ */
.section-faq{background:var(--bg);}
.faq-layout{max-width:860px;margin:0 auto;}
.faq-header{text-align:center;margin-bottom:36px;}
.faq-header .section-kicker,.faq-header .section-title{margin-left:auto;margin-right:auto;}
.faq-accordion.accordion{background:transparent;margin-top:0;border-top:1px solid var(--line);}
.faq-accordion .accordion-item{border-bottom:1px solid var(--line);background:transparent;}
.faq-accordion .accordion-title{position:relative;display:flex;align-items:center;gap:18px;padding:22px 0;font-size:17px;font-weight:600;color:var(--ink);line-height:1.6;border:0;background:transparent;transition:color .2s ease;}
.faq-accordion .accordion-title:hover,.faq-accordion .accordion-item.is-active>.accordion-title{color:var(--primary);}
.faq-accordion .accordion-title::before,.faq-accordion .accordion-title::after{display:none;}
.faq-accordion .faq-icon{position:relative;flex-shrink:0;width:26px;height:26px;margin-left:auto;border-radius:50%;border:1px solid rgba(225,90,50,.5);display:flex;align-items:center;justify-content:center;}
.faq-accordion .faq-icon i{position:relative;width:12px;height:2px;background:var(--accent);border-radius:2px;}
.faq-accordion .faq-icon i:after{content:"";position:absolute;top:-5px;left:0;width:12px;height:2px;border-radius:2px;background:var(--accent);transition:transform .3s ease;transform:rotate(0deg);}
.faq-accordion .accordion-item.is-active .faq-icon i:after{transform:rotate(90deg);}
.faq-accordion .accordion-content{display:block;max-height:0;overflow:hidden;opacity:0;transition:max-height .38s ease,opacity .28s ease,padding .3s ease;padding:0;}
.faq-accordion .accordion-item.is-active .accordion-content{max-height:720px;opacity:1;padding:0 0 22px;}
.faq-accordion .accordion-content p{max-width:680px;font-size:15px;color:var(--muted);line-height:2;}

/* Subscribe CTA */
.cta-subscribe{position:relative;padding:100px 0;background:url('/assets/images/backpic/back-3.jpg') center/cover no-repeat;}
.cta-subscribe::before{content:"";position:absolute;inset:0;background:linear-gradient(115deg,rgba(16,71,63,.97) 0%,rgba(23,94,84,.93) 56%,rgba(22,88,79,.88) 100%);}
.cta-inner{position:relative;z-index:2;}
.cta-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;}
.cta-left .section-kicker{color:#A9D6CC;margin-bottom:14px;}
.cta-left .section-title{color:#fff;font-size:38px;line-height:1.3;}
.cta-left .section-lead{color:rgba(255,255,255,.82);margin-top:18px;font-size:16px;line-height:1.9;}
.subscribe-form-wrap{background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.2);border-radius:var(--radius-lg);padding:30px;backdrop-filter:blur(8px);}
.form-row{display:grid;grid-template-columns:1fr;gap:14px;margin-bottom:16px;}
.form-label{font-size:13px;font-weight:600;color:rgba(255,255,255,.82);margin-bottom:6px;display:block;}
.form-control{width:100%;height:48px;border:1px solid rgba(255,255,255,.28);border-radius:8px;background:rgba(255,255,255,.94);padding:0 16px;font-size:15px;color:var(--ink);transition:border .2s ease,box-shadow .2s ease;outline:none;}
.form-control:focus{border-color:var(--accent);box-shadow:0 0 0 3px rgba(225,90,50,.28);}
select.form-control{appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='8' viewBox='0 0 14 8'%3E%3Cpath d='M1 1l6 6 6-6' fill='none' stroke='%23175E54' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 16px center;padding-right:40px;cursor:pointer;}
.submit-btn{width:100%;height:48px;}
.form-success{border-radius:8px;background:rgba(255,255,255,.16);padding:14px 16px;font-size:15px;color:#fff;display:none;}
.form-success.show{display:block;}
.form-privacy{font-size:12px;color:rgba(255,255,255,.6);margin-top:12px;line-height:1.7;text-align:center;}

/* Footer */
.site-footer{background:var(--bg-deep);padding-top:66px;border-top:1px solid var(--line);}
.footer-top{border-bottom:1px solid rgba(183,178,163,.7);padding-bottom:44px;}
.footer-brand{font-size:20px;font-weight:800;color:var(--primary);display:inline-flex;align-items:center;gap:10px;}
.footer-desc{margin-top:16px;font-size:14px;color:var(--muted);line-height:1.9;max-width:300px;}
.footer-heading{font-size:13px;font-weight:700;color:var(--ink);margin-bottom:18px;letter-spacing:.08em;}
.footer-links a{display:block;padding:6px 0;font-size:14px;color:var(--muted);transition:color .2s ease,padding-left .2s ease;}
.footer-links a:hover{color:var(--primary);padding-left:4px;}
.footer-safe p{font-size:13px;color:var(--muted);line-height:1.9;max-width:340px;}
.footer-bottom{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:10px;padding:22px 0 26px;font-size:13px;color:var(--muted);}
.footer-bottom a{color:var(--primary);}
.footer-bottom a:hover{color:var(--accent);}

/* Responsive */
@media (max-width:1023px){
  .nav-desktop{display:none;}
  .nav-toggle{display:inline-flex;}
  .brand-logo{position:static;transform:none;}
  .hero{padding:70px 0 50px;}
  .hero-title{font-size:40px;}
  .section-title{font-size:30px;}
  .matrix-row{grid-template-columns:34px 74px minmax(0,1fr) 120px 22px;gap:14px;padding:14px;}
  .matrix-thumb{width:74px;height:74px;}
  .matrix-tags{grid-column:3/6;margin-top:10px;}
  .matrix-arrow{grid-column:5;grid-row:1;}
  .compare-grid{grid-template-columns:1fr;gap:24px;}
  .cta-grid{grid-template-columns:1fr;gap:32px;}
  .cta-subscribe{padding:70px 0;}
}
@media (max-width:639px){
  body{font-size:15px;}
  .section-block{padding:56px 0;}
  .hero{padding:54px 0 40px;}
  .hero-title{font-size:32px;line-height:1.3;}
  .hero-sub{font-size:15px;}
  .hero-cta{gap:10px;}
  .button{width:100%;max-width:none;}
  .hero-cta .button{width:auto;min-width:150px;}
  .hero-shortcuts{gap:8px;}
  .hero-stats-wrap{overflow:hidden;padding:0 10px;margin-top:32px;}
  .hero-stats{grid-template-columns:1fr 1fr;}
  .stat-card{padding:20px 10px 16px;}
  .stat-value{font-size:30px;}
  .stat-card:nth-child(2){border-right:0;}
  .stat-card:nth-child(1),.stat-card:nth-child(2){border-bottom:1px solid var(--line);}
  .stat-card:nth-child(3){border-right:1px solid var(--line);}
  .section-title{font-size:26px;line-height:1.35;}
  .section-kicker{font-size:11px;}
  .footer-bottom{flex-direction:column;text-align:center;}
  .fcopyright{text-align:center;}
  .matrix-row{grid-template-columns:1fr 24px;gap:10px;}
  .matrix-index{grid-row:1;grid-column:1;}
  .matrix-thumb{width:64px;height:64px;grid-column:1;}
  .matrix-info{grid-column:1;margin-top:6px;}
  .matrix-tags{grid-column:1;}
  .matrix-meta{margin-top:-68px;margin-right:34px;text-align:right;}
  .matrix-arrow{grid-column:2;grid-row:1;justify-content:flex-end;}
  .updates-card{padding:16px 18px;}
  .updates-item{grid-template-columns:1fr;gap:6px;}
  .compare-panel{padding:26px 18px 8px;}
  .compare-conclusion{padding:20px 18px;}
  .compare-conclusion{gap:14px;}
  .cta-left .section-title{font-size:28px;}
  .subscribe-form-wrap{padding:22px 18px;}
  .faq-accordion .accordion-title{font-size:16px;line-height:1.7;}
}
@media (max-width:379px){
  .header-inner{gap:8px;min-height:62px;}
  .brand-logo{font-size:17px;}
  .container{padding-left:16px;padding-right:16px;}
  .hero-title{font-size:28px;}
  .stat-note{font-size:11px;}
}
@media (prefers-reduced-motion: reduce){
  *{transition:none!important;animation:none!important;}
  html{scroll-behavior:auto;}
  .js .reveal-up{opacity:1;transform:none;}
}

/* roulang page: category1 */
/* 免费片源 片源档案编目视觉系统 */
:root{
 --bg:#F6F3EC;
 --bg-deep:#E9E4D8;
 --card:#FFFFFF;
 --ink:#1B1C1A;
 --body:#40413C;
 --muted:#78776F;
 --line:#E2DDD1;
 --line-deep:#B7B2A3;
 --primary:#175E54;
 --primary-hover:#10473F;
 --accent:#E15A32;
 --accent-soft:#F9E8E0;
 --primary-soft:#EAF2EF;
 --radius-sm:6px;
 --radius-md:10px;
 --radius-lg:14px;
 --shadow-xs:0 1px 2px rgba(27,28,26,.04);
 --shadow-sm:0 6px 18px rgba(27,28,26,.06);
 --shadow-lg:0 18px 40px rgba(27,28,26,.10);
 --font:"PingFang SC","Microsoft YaHei","Noto Sans SC","HarmonyOS Sans SC",sans-serif;
}
html{scroll-behavior:smooth;}
body{margin:0;font-family:var(--font);font-size:16px;line-height:1.8;background:var(--bg);color:var(--body);-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;}
img,svg{display:block;max-width:100%;}
a{color:inherit;text-decoration:none;transition:color .2s ease,border-color .2s ease,background .2s ease,transform .2s ease;}
button,input,select,textarea{font:inherit;color:inherit;}
button{border:0;background:none;cursor:pointer;}
:focus-visible{outline:3px solid rgba(225,90,50,.55);outline-offset:2px;border-radius:var(--radius-sm);}
.container{max-width:1200px;margin-left:auto;margin-right:auto;padding-left:24px;padding-right:24px;}
.section-kicker{display:flex;align-items:center;gap:12px;font-size:12px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--primary);margin-bottom:16px;}
.section-kicker .kicker-num{display:inline-flex;align-items:center;justify-content:center;min-width:34px;height:22px;padding:0 6px;border:1px solid rgba(225,90,50,.45);border-radius:999px;color:var(--accent);font-size:11px;letter-spacing:.02em;}
.section-title{font-size:34px;line-height:1.3;font-weight:800;color:var(--ink);letter-spacing:-.01em;max-width:720px;}
.section-lead{max-width:680px;font-size:15px;line-height:1.9;color:var(--muted);margin-top:16px;}
.button{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:46px;padding:0 26px;border-radius:999px;font-size:15px;font-weight:600;line-height:1;background:transparent;border:1px solid transparent;transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;}
.button:hover{transform:translateY(-2px);}
.button:active{transform:translateY(0) scale(.99);}
.button-primary{background:var(--primary);color:#fff;box-shadow:0 6px 14px rgba(23,94,84,.18);}
.button-primary:hover{background:var(--primary-hover);box-shadow:var(--shadow-sm);}
.button-ghost{background:transparent;color:var(--primary);border-color:#C7D6D0;}
.button-ghost:hover{background:rgba(23,94,84,.08);border-color:var(--primary);}
.button-light{background:#fff;color:var(--primary);box-shadow:0 6px 18px rgba(0,0,0,.12);}
.button-light:hover{background:#F2F6F4;box-shadow:var(--shadow-sm);}
.button-inverse-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.65);}
.button-inverse-ghost:hover{background:rgba(255,255,255,.1);border-color:#fff;}

/* Header */
.site-header{position:sticky;top:0;z-index:80;background:rgba(246,243,236,.86);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border-bottom:1px solid var(--line);}
.header-inner{position:relative;display:flex;align-items:center;min-height:72px;justify-content:space-between;}
.brand-logo{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;font-size:20px;font-weight:800;color:var(--primary);letter-spacing:-.02em;z-index:2;position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);}
.brand-logo .brand-icon{width:22px;height:22px;flex:none;}
.nav-col{display:flex;align-items:center;gap:4px;min-height:44px;}
.nav-left{justify-content:flex-start;}
.nav-right{justify-content:flex-end;}
.nav-link{position:relative;padding:10px 14px;font-size:14px;font-weight:500;color:var(--body);border-radius:8px;}
.nav-link:after{content:"";position:absolute;left:14px;right:14px;bottom:4px;height:2px;background:var(--primary);border-radius:2px;transform:scaleX(0);transform-origin:center;transition:transform .25s ease;}
.nav-link:hover{color:var(--primary);}
.nav-link:hover:after,.nav-link.is-active:after{transform:scaleX(1);}
.nav-link.is-active{color:var(--ink);font-weight:700;}
.header-cta{margin-left:8px;}
.nav-toggle{display:none;align-items:center;justify-content:center;width:42px;height:42px;border-radius:var(--radius-md);background:rgba(255,255,255,.7);border:1px solid var(--line);}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--primary);position:relative;transition:background .2s ease;}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;right:0;height:2px;border-radius:2px;background:var(--primary);transition:transform .25s ease;}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}
.nav-toggle[aria-expanded="true"] span{background:transparent;}
.nav-toggle[aria-expanded="true"] span::before{transform:translateY(6px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span::after{transform:translateY(-6px) rotate(-45deg);}
.mobile-menu{display:none;background:var(--bg);border-top:1px solid var(--line);box-shadow:var(--shadow-lg);}
.mobile-menu.open{display:block;}
.mobile-nav-list{padding:8px 0 16px;}
.mobile-nav-list a{display:block;padding:13px 16px;font-size:15px;font-weight:500;border-bottom:1px solid rgba(226,221,209,.7);color:var(--body);}
.mobile-nav-list a:hover,.mobile-nav-list a.is-active{color:var(--primary);}
.mobile-cta-wrap{padding:16px;}
.mobile-cta-wrap .button{width:100%;}

/* 分类页主区域 */
.category-main{overflow:hidden;}
.category-lead{position:relative;background:linear-gradient(180deg,rgba(246,243,236,.97) 0%,rgba(246,243,236,.87) 40%,rgba(246,243,236,.94) 100%),url('/assets/images/backpic/back-2.jpg') center 55%/cover no-repeat;padding:48px 0 46px;border-bottom:1px solid var(--line);}
.breadcrumb-nav{display:flex;align-items:center;flex-wrap:wrap;gap:6px;font-size:13px;color:var(--muted);margin-bottom:34px;}
.breadcrumb-nav a{color:var(--muted);}
.breadcrumb-nav a:hover{color:var(--primary);}
.breadcrumb-nav .sep{color:var(--line-deep);}
.breadcrumb-crumb[aria-current="page"]{color:var(--primary);font-weight:600;}
.category-title{font-size:46px;line-height:1.25;font-weight:800;color:var(--ink);letter-spacing:-.025em;margin:6px 0 16px;max-width:760px;}
.category-title span{color:var(--primary);position:relative;display:inline-block;}
.category-title span::after{content:"";position:absolute;left:0;right:0;bottom:4px;height:6px;background:rgba(225,90,50,.24);z-index:-1;}
.category-desc{max-width:820px;font-size:16px;line-height:2;color:var(--body);margin:0;}
.stats-wrap{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;margin-top:38px;background:rgba(255,255,255,.82);border:1px solid var(--line);border-radius:var(--radius-lg);padding:28px 18px 22px;box-shadow:var(--shadow-xs);backdrop-filter:blur(8px);}
.stat-item{text-align:center;padding:0 14px;border-left:1px solid rgba(226,221,209,.7);}
.stat-item:first-child{border-left:0;}
.stat-num{font-size:38px;font-weight:800;letter-spacing:-.02em;color:var(--primary);line-height:1.15;font-variant-numeric:tabular-nums;}
.stat-num .stat-unit{font-size:14px;font-weight:600;color:var(--muted);margin-left:5px;letter-spacing:0;}
.stat-name{font-size:13px;font-weight:600;color:var(--muted);margin-top:5px;}
.stat-note{grid-column:1/-1;text-align:right;font-size:12px;color:var(--muted);border-top:1px solid var(--line);padding-top:14px;margin-top:4px;}

/* 列表与工具栏 */
.list-section{padding:84px 0 78px;}
.list-toolbar{position:sticky;top:86px;z-index:40;display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:14px 20px;background:rgba(249,247,241,.93);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);border:1px solid var(--line);box-shadow:var(--shadow-sm);border-radius:var(--radius-lg);padding:14px 16px;margin:30px 0 40px;}
.filter-group,.sort-group{display:flex;align-items:center;flex-wrap:wrap;gap:8px;}
.toolbar-label{font-size:12px;font-weight:700;letter-spacing:.12em;color:var(--muted);margin-right:6px;white-space:nowrap;}
.chip-list{display:flex;align-items:center;flex-wrap:wrap;gap:8px;}
.chip{display:inline-flex;align-items:center;height:32px;padding:0 13px;border-radius:999px;border:1px solid var(--line);font-size:13px;font-weight:500;color:var(--body);background:rgba(255,255,255,.8);transition:background .2s ease,color .2s ease,border-color .2s ease,box-shadow .2s ease;}
.chip:hover{border-color:var(--line-deep);color:var(--primary);background:var(--primary-soft);}
.chip.is-active{background:var(--primary);color:#fff;border-color:var(--primary);box-shadow:0 4px 10px rgba(23,94,84,.16);}
.sort-group{justify-content:flex-end;}
.sort-link{color:var(--muted);font-size:13px;font-weight:500;padding:4px 2px;margin-left:12px;border-bottom:1px solid transparent;white-space:nowrap;}
.sort-link:hover{color:var(--primary);border-bottom-color:var(--primary);}
.sort-link.is-active{color:var(--primary);font-weight:700;border-bottom-color:var(--primary);}
.source-list{display:flex;flex-direction:column;gap:14px;}
.source-row{display:grid;grid-template-columns:144px minmax(0,1fr) 28px;column-gap:22px;align-items:center;background:var(--card);border:1px solid var(--line);border-radius:var(--radius-lg);box-shadow:var(--shadow-xs);padding:12px 16px 12px 12px;transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease,background .25s ease;min-height:132px;}
.source-row:hover{transform:translateY(-4px);box-shadow:var(--shadow-sm);border-color:var(--line-deep);background:#FBF9F4;}
.source-media{width:144px;border-radius:var(--radius-md);overflow:hidden;background:#E9E4D8;box-shadow:0 1px 4px rgba(27,28,26,.06);}
.source-media img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .4s ease;}
.source-row:hover .source-media img{transform:scale(1.05);}
.source-content{min-width:0;}
.source-title-row{display:flex;align-items:center;flex-wrap:wrap;gap:8px 12px;margin-bottom:5px;}
.source-title{font-size:17px;font-weight:700;color:var(--ink);line-height:1.5;margin:0;}
.source-badge{flex:none;display:inline-flex;align-items:center;height:22px;padding:0 8px;border-radius:999px;font-size:11px;font-weight:700;letter-spacing:.02em;background:var(--accent-soft);color:#B3451F;}
.source-badge.badge-new{background:var(--primary-soft);color:var(--primary);}
.source-desc{font-size:14px;line-height:1.8;color:var(--body);margin:3px 0 10px;max-width:720px;}
.source-meta{display:flex;align-items:center;flex-wrap:wrap;gap:8px 10px;}
.mini-tag{display:inline-flex;align-items:center;height:23px;padding:0 9px;border-radius:999px;background:var(--bg);border:1px solid var(--line);color:var(--body);font-size:11px;font-weight:600;}
.batch-tag{color:var(--muted);font-size:12px;background:transparent;border:0;padding-left:2px;}
.row-time{margin-left:auto;font-size:12px;color:var(--muted);white-space:nowrap;}
.row-arrow{display:inline-flex;align-items:center;justify-content:center;width:32px;height:32px;border-radius:50%;border:1px solid var(--line);color:var(--primary);font-size:15px;line-height:1;transition:transform .2s ease,background .2s ease,border-color .2s ease;}
.source-row:hover .row-arrow{transform:translateX(3px);background:var(--primary-soft);border-color:var(--primary);}

/* 分页 */
.pagination-wrap{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:14px;margin-top:46px;padding-top:28px;border-top:1px solid var(--line);}
.page-label{font-size:13px;color:var(--muted);}
.pagination{display:flex;align-items:center;flex-wrap:wrap;gap:6px;list-style:none;margin:0;padding:0;}
.pagination li{list-style:none;}
.page-link{display:inline-flex;align-items:center;justify-content:center;height:38px;min-width:38px;padding:0 10px;border-radius:var(--radius-md);border:1px solid transparent;font-size:14px;font-weight:500;color:var(--body);transition:color .2s ease,background .2s ease,border-color .2s ease;}
.page-link:hover{color:var(--primary);border-color:var(--line-deep);background:#fff;}
.page-link.is-active{background:var(--primary);color:#fff;font-weight:700;box-shadow:0 4px 10px rgba(23,94,84,.16);}
.page-link.disabled{opacity:.45;pointer-events:none !important;}
.page-next,.page-prev{font-size:13px;}

/* CTA */
.category-cta{padding-bottom:96px;}
.cta-shell{background:var(--primary);background:linear-gradient(120deg,var(--primary-hover) 0%,var(--primary) 60%,#1A6B60 100%);color:#fff;border-radius:18px;padding:56px 54px;box-shadow:var(--shadow-lg);overflow:hidden;position:relative;}
.cta-shell:before{content:"";position:absolute;right:-90px;top:-110px;width:280px;height:280px;border-radius:50%;background:rgba(255,255,255,.08);}
.cta-shell:after{content:"";position:absolute;right:60px;bottom:-140px;width:230px;height:230px;border-radius:50%;background:rgba(225,90,50,.18);}
.cta-inner{position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:28px;}
.cta-title{font-size:30px;font-weight:800;line-height:1.4;color:#fff;margin:0;max-width:560px;}
.cta-text{color:rgba(255,255,255,.82);font-size:15px;line-height:1.9;max-width:560px;margin-top:10px;}
.cta-buttons{display:flex;align-items:center;flex-wrap:wrap;gap:12px;}

/* Footer */
.site-footer{background:var(--bg-deep);border-top:1px solid var(--line);padding:70px 0 30px;position:relative;}
.footer-top{display:grid;grid-template-columns:4fr 3fr 5fr;gap:40px;padding-bottom:44px;}
.footer-brand{display:inline-flex;align-items:center;gap:10px;font-size:20px;font-weight:800;color:var(--primary);margin-bottom:16px;}
.footer-brand svg{width:22px;height:22px;}
.footer-desc{font-size:14px;line-height:1.9;color:var(--muted);max-width:340px;margin:0;}
.footer-heading{font-size:13px;font-weight:700;letter-spacing:.12em;color:var(--ink);margin-bottom:16px;padding-bottom:10px;border-bottom:1px solid var(--line);}
.footer-links{display:flex;flex-direction:column;gap:9px;font-size:14px;color:var(--body);}
.footer-links a{display:inline-flex;align-items:center;gap:6px;color:var(--body);transition:color .2s ease;}
.footer-links a:hover{color:var(--primary);}
.footer-links a:before{content:"";width:4px;height:4px;border-radius:50%;background:var(--accent);flex:none;}
.footer-safe p{font-size:14px;line-height:1.8;color:var(--muted);margin:0;}
.footer-bottom{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:10px;border-top:1px solid var(--line);padding-top:22px;}
.fcopyright{color:var(--muted);font-size:13px;}
.footer-copyright-links{color:var(--muted);font-size:13px;}
.footer-copyright-links a{color:var(--muted);}
.footer-copyright-links a:hover{color:var(--primary);}

/* animated */
.js-anim .reveal{opacity:0;transform:translateY(14px);transition:opacity .65s ease,transform .65s ease;}
.js-anim .reveal.is-in{opacity:1;transform:none;}

/* 响应式 */
@media(min-width:640px) and (max-width:1023px){
 .category-title{font-size:38px;}
 .list-toolbar{top:74px;}
 .footer-top{grid-template-columns:1fr 1fr;gap:32px;}
 .source-row{grid-template-columns:120px minmax(0,1fr) 20px;column-gap:16px;padding:12px 12px 12px 10px;}
 .source-media{width:120px;}
 .source-desc{font-size:13px;}
 .cta-shell{padding:42px 32px;}
}
@media(max-width:639px){
 .container{padding-left:16px;padding-right:16px;}
 .nav-desktop{display:none!important;}
 .nav-toggle{display:inline-flex;}
 .mobile-menu .mobile-cta-wrap .button{width:100%;}
 .category-lead{padding:28px 0 34px;background:linear-gradient(180deg,rgba(246,243,236,.96),rgba(246,243,236,.92)),url('/assets/images/backpic/back-2.jpg') center 40%/cover no-repeat;}
 .breadcrumb-nav{margin-bottom:22px;font-size:12px;}
 .category-title{font-size:32px;}
 .category-desc{font-size:15px;line-height:1.9;}
 .stats-wrap{grid-template-columns:repeat(3,1fr);gap:6px;padding:20px 8px 18px;margin-top:26px;}
 .stat-item{padding:0 6px;}
 .stat-num{font-size:24px;}
 .stat-num .stat-unit{display:block;margin:0;font-size:11px;}
 .stat-name{font-size:11px;line-height:1.5;}
 .stat-note{text-align:left;font-size:11px;}
 .section-title{font-size:26px;}
 .list-section{padding:54px 0 58px;}
 .list-toolbar{position:static;top:auto;align-items:stretch;flex-direction:column;margin:22px 0 28px;}
 .filter-group,.sort-group{align-items:flex-start;flex-direction:column;gap:8px;}
 .sort-group{justify-content:flex-start;}
 .sort-link{margin-left:0;margin-right:12px;}
 .source-row{grid-template-columns:1fr;column-gap:0;row-gap:0;padding:0;min-height:0;overflow:hidden;}
 .source-media{width:100%;border-radius:0;}
 .source-media img{aspect-ratio:16/9;}
 .source-content{padding:12px 12px 16px;}
 .source-title-row{align-items:flex-start;}
 .source-title{font-size:16px;}
 .source-desc{font-size:13px;line-height:1.75;margin-bottom:8px;}
 .row-time{width:100%;margin-left:0;margin-top:2px;}
 .row-arrow{display:none;}
 .pagination-wrap{flex-direction:column;align-items:flex-start;}
 .category-cta{padding-bottom:60px;}
 .cta-shell{padding:34px 22px 30px;border-radius:14px;}
 .cta-title{font-size:24px;}
 .cta-text{font-size:14px;}
 .cta-buttons{width:100%;}
 .cta-buttons .button{width:100%;}
 .site-footer{padding:50px 0 28px;}
 .footer-top{grid-template-columns:1fr;gap:30px;padding-bottom:34px;}
 .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media(prefers-reduced-motion:reduce){
 html{scroll-behavior:auto;}
 *,*::before,*::after{animation-duration:.01ms!important;transition-duration:.01ms!important;}
 .js-anim .reveal{opacity:1;transform:none;}
}