/* roulang page: index */
:root{
      --ink:#183C35;
      --ink-deep:#102D27;
      --terra:#B85C45;
      --mist:#F6F5F0;
      --sage:#EAF0EC;
      --paper:#FFFDFC;
      --text:#17201D;
      --muted:#5E6964;
      --line:#D5DDD7;
      --radius:6px;
      --shadow:0 8px 20px rgba(23,32,29,.05);
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth;scroll-padding-top:92px}
    body{margin:0;background:var(--mist);color:var(--text);font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;font-size:16px;line-height:1.8}
    a{color:inherit;text-decoration:none}
    button,input,select,textarea{font:inherit}
    button{cursor:pointer}
    img{max-width:100%;display:block}
    .site-shell{overflow:hidden}
    .container{width:min(1200px,calc(100% - 64px));margin:0 auto}
    .eyebrow{display:flex;align-items:center;gap:9px;color:var(--terra);font-size:13px;font-weight:700;letter-spacing:.08em}
    .eyebrow::before{content:"";width:26px;height:2px;background:var(--terra)}
    .section-title{margin:14px 0 10px;font-size:32px;line-height:1.35;font-weight:700;color:var(--ink)}
    .section-copy{max-width:660px;margin:0;color:var(--muted)}
    .btn{height:46px;display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:0 20px;border:1px solid transparent;border-radius:4px;font-weight:700;font-size:15px;transition:transform .18s ease,background .18s ease,border-color .18s ease,color .18s ease,box-shadow .18s ease}
    .btn:hover{transform:translateY(-2px)}
    .btn:active{transform:translateY(0)}
    .btn:focus-visible,.nav-link:focus-visible,.faq-button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid rgba(184,92,69,.28);outline-offset:3px}
    .btn-primary{background:var(--ink);color:#fff}
    .btn-primary:hover{background:var(--ink-deep);box-shadow:0 8px 18px rgba(16,45,39,.18)}
    .btn-outline{border-color:var(--ink);color:var(--ink);background:transparent}
    .btn-outline:hover{background:var(--sage)}
    .text-link{display:inline-flex;align-items:center;gap:7px;color:var(--ink);font-weight:700;font-size:15px;border-bottom:1px solid transparent;transition:color .18s,border-color .18s}
    .text-link:hover{color:var(--terra);border-color:var(--terra)}
    .site-header{height:76px;background:rgba(255,253,252,.98);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:50}
    .header-inner{height:100%;display:flex;align-items:center;justify-content:space-between;gap:28px}
    .brand{display:flex;align-items:center;gap:11px;min-width:0;color:var(--ink)}
    .brand-mark{width:32px;height:32px;border:2px solid var(--ink);display:grid;place-items:center;position:relative;flex:0 0 auto}
    .brand-mark::before{content:"";width:0;height:0;border-top:6px solid transparent;border-bottom:6px solid transparent;border-left:9px solid var(--terra);margin-left:2px}
    .brand-name{font-size:18px;font-weight:700;white-space:nowrap;line-height:1.2}
    .brand-note{display:block;color:var(--muted);font-size:11px;font-weight:500;margin-top:2px}
    .desktop-nav{display:flex;align-items:center;gap:24px}
    .nav-link{height:76px;display:flex;align-items:center;position:relative;color:var(--muted);font-size:15px;font-weight:600;transition:color .18s}
    .nav-link:hover,.nav-link.active{color:var(--ink)}
    .nav-link.active::after{content:"";position:absolute;bottom:0;left:0;width:24px;height:2px;background:var(--terra)}
    .header-cta{height:40px;padding:0 16px;font-size:14px}
    .menu-toggle{width:42px;height:42px;background:transparent;border:1px solid var(--line);border-radius:4px;display:none;align-items:center;justify-content:center;position:relative}
    .menu-toggle span,.menu-toggle::before,.menu-toggle::after{position:absolute;width:18px;height:2px;background:var(--ink);content:"";transition:transform .2s,opacity .2s}
    .menu-toggle::before{transform:translateY(-6px)}
    .menu-toggle::after{transform:translateY(6px)}
    .menu-toggle.open span{opacity:0}
    .menu-toggle.open::before{transform:rotate(45deg)}
    .menu-toggle.open::after{transform:rotate(-45deg)}
    .mobile-panel{display:none;position:absolute;top:76px;left:0;right:0;padding:12px 20px 20px;background:var(--paper);border-bottom:1px solid var(--line);box-shadow:var(--shadow)}
    .mobile-panel.open{display:block}
    .mobile-panel a{display:flex;align-items:center;min-height:48px;padding:0 10px;border-bottom:1px solid var(--line);font-weight:700;color:var(--ink)}
    .mobile-panel .btn{width:100%;margin-top:14px}
    .hero{background:var(--ink);color:#fff;position:relative;min-height:548px;padding:72px 0 52px}
    .hero::before{content:"";position:absolute;inset:0;opacity:.14;background-image:linear-gradient(rgba(255,255,255,.34) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.34) 1px,transparent 1px);background-size:48px 48px;mask-image:linear-gradient(90deg,#000,transparent 75%)}
    .hero-inner{position:relative;display:grid;grid-template-columns:1.05fr .95fr;gap:72px;align-items:center}
    .hero .eyebrow{color:#edb4a6}
    .hero .eyebrow::before{background:#edb4a6}
    .hero h1{max-width:670px;margin:17px 0 18px;font-size:48px;line-height:1.22;font-weight:700;letter-spacing:0}
    .hero h1 small{display:block;margin-bottom:10px;font-size:14px;line-height:1.4;font-weight:600;color:#b8cbc4;letter-spacing:.08em}
    .hero-copy{max-width:620px;margin:0;color:#d8e3de;font-size:17px;line-height:1.9}
    .hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
    .hero .btn-primary{background:#fff;color:var(--ink)}
    .hero .btn-primary:hover{background:#edf2ee}
    .hero .text-link{color:#fff;border-color:rgba(255,255,255,.45);padding-bottom:2px}
    .hero .text-link:hover{color:#f5c2b6;border-color:#f5c2b6}
    .hero-points{display:flex;flex-wrap:wrap;gap:20px;margin-top:40px;padding-top:20px;border-top:1px solid rgba(255,255,255,.2)}
    .hero-point{min-width:112px}
    .hero-point strong{display:block;font-size:20px;color:#fff;font-variant-numeric:tabular-nums}
    .hero-point span{display:block;font-size:13px;color:#b8cbc4}
    .index-board{border:1px solid rgba(234,240,236,.3);background:#1f4940;padding:20px;box-shadow:0 18px 40px rgba(0,0,0,.16)}
    .board-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:16px;border-bottom:1px solid rgba(255,255,255,.16);font-size:13px;color:#d5e2dc}
    .board-status{display:inline-flex;align-items:center;gap:6px;color:#f0b3a3}
    .status-dot{width:7px;height:7px;background:var(--terra);border-radius:50%}
    .rank-row{display:grid;grid-template-columns:30px 1fr auto;align-items:center;gap:12px;padding:17px 0;border-bottom:1px solid rgba(255,255,255,.13)}
    .rank-row:last-child{border:0}
    .rank-no{font-size:13px;color:#9db4ac}
    .rank-main strong{display:block;font-size:15px;font-weight:700;color:#fff}
    .rank-main span{display:block;margin-top:2px;font-size:12px;color:#b8cbc4}
    .rank-state{font-size:12px;color:#f1c3b7}
    .rank-state.ready{color:#bed8cc}
    .metrics{padding:0 0 88px;background:var(--mist)}
    .metrics-panel{margin-top:-1px;border-top:3px solid var(--ink);background:var(--paper);box-shadow:var(--shadow);display:grid;grid-template-columns:repeat(4,1fr)}
    .metric{padding:28px 30px;border-right:1px solid var(--line)}
    .metric:last-child{border:0}
    .metric-label{font-size:13px;color:var(--muted);font-weight:700}
    .metric-value{margin:6px 0 4px;color:var(--ink);font-size:31px;line-height:1.2;font-weight:700;font-variant-numeric:tabular-nums}
    .metric-note{font-size:13px;color:var(--muted);line-height:1.6}
    .section{padding:96px 0}
    .matrix{background:var(--paper)}
    .matrix-layout{display:grid;grid-template-columns:300px 1fr;gap:60px;align-items:start}
    .matrix-side{position:sticky;top:104px}
    .filter-hint{margin-top:27px;padding:18px;border-left:3px solid var(--terra);background:var(--sage);font-size:14px;color:var(--muted);line-height:1.75}
    .matrix-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
    .matrix-card{min-height:206px;padding:22px;border:1px solid var(--line);border-radius:var(--radius);background:var(--paper);position:relative;transition:transform .18s,border-color .18s,box-shadow .18s}
    .matrix-card:hover{transform:translateY(-2px);border-color:var(--ink);box-shadow:var(--shadow)}
    .matrix-card:hover::before{opacity:1}
    .matrix-card::before{content:"";position:absolute;top:-1px;left:20px;width:36px;height:2px;background:var(--terra);opacity:0;transition:opacity .18s}
    .card-top{display:flex;align-items:center;justify-content:space-between}
    .card-no{font-size:13px;font-weight:700;color:var(--terra);font-variant-numeric:tabular-nums}
    .line-icon{width:23px;height:23px;color:var(--ink)}
    .matrix-card h3{margin:22px 0 7px;font-size:19px;line-height:1.4;color:var(--ink)}
    .matrix-card p{margin:0 0 16px;color:var(--muted);font-size:14px;line-height:1.75}
    .matrix-card .text-link{font-size:14px}
    .channel{background:var(--sage)}
    .channel-grid{display:grid;grid-template-columns:1.12fr .88fr;gap:70px;align-items:center}
    .channel-list{margin:30px 0 0;padding:0;list-style:none;border-top:1px solid var(--line)}
    .channel-list li{display:grid;grid-template-columns:42px 1fr;gap:15px;padding:17px 0;border-bottom:1px solid var(--line)}
    .channel-list b{display:grid;place-items:center;width:31px;height:31px;border:1px solid var(--ink);color:var(--ink);font-size:13px}
    .channel-list strong{display:block;color:var(--ink);font-size:16px}
    .channel-list span{display:block;margin-top:2px;color:var(--muted);font-size:14px}
    .flow-panel{background:var(--paper);border:1px solid var(--line);padding:30px}
    .flow-panel h3{margin:0 0 21px;color:var(--ink);font-size:21px}
    .flow-step{display:grid;grid-template-columns:42px 1fr;gap:15px;padding:0 0 22px;position:relative}
    .flow-step:not(:last-child)::before{content:"";position:absolute;top:35px;bottom:5px;left:17px;border-left:1px dashed #a9b8b0}
    .flow-number{width:35px;height:35px;border-radius:50%;background:var(--ink);color:#fff;display:grid;place-items:center;font-size:13px;font-weight:700;z-index:1}
    .flow-step strong{display:block;color:var(--ink);font-size:16px}
    .flow-step p{margin:2px 0 0;color:var(--muted);font-size:14px;line-height:1.65}
    .comparison{background:var(--mist)}
    .compare-heading{display:flex;justify-content:space-between;gap:30px;align-items:end;margin-bottom:34px}
    .compare-grid{display:grid;grid-template-columns:1fr 74px 1fr;align-items:stretch}
    .compare-box{padding:32px;border:1px solid var(--line)}
    .compare-box.muted-box{background:#edf0ed;color:#637069}
    .compare-box.focus-box{background:var(--paper);border-top:3px solid var(--ink)}
    .compare-box h3{margin:0 0 18px;font-size:22px;line-height:1.4;color:var(--ink)}
    .compare-box.muted-box h3{color:#53605a}
    .compare-items{margin:0;padding:0;list-style:none}
    .compare-items li{display:flex;gap:11px;padding:12px 0;border-top:1px solid var(--line);font-size:15px}
    .state{width:20px;flex:0 0 20px;font-weight:700;color:var(--terra)}
    .focus-box .state{color:var(--ink)}
    .compare-arrow{display:flex;align-items:center;justify-content:center;color:var(--terra);font-size:28px}
    .data-strip{background:var(--ink);color:#fff;padding:50px 0}
    .data-strip-grid{display:grid;grid-template-columns:1.2fr repeat(3,1fr);gap:0}
    .strip-intro{padding-right:34px}
    .strip-intro h2{margin:8px 0 0;font-size:28px;line-height:1.4}
    .strip-stat{border-left:1px solid rgba(255,255,255,.19);padding:0 26px}
    .strip-stat strong{display:block;color:#f5c2b6;font-size:28px;font-variant-numeric:tabular-nums}
    .strip-stat span{display:block;margin-top:3px;color:#cad9d3;font-size:13px;line-height:1.6}
    .news{background:var(--paper)}
    .news-grid{display:grid;grid-template-columns:1.35fr .65fr;gap:64px;margin-top:35px}
    .news-list{border-top:1px solid var(--line)}
    .news-item{display:grid;grid-template-columns:100px 1fr auto;gap:22px;align-items:center;padding:21px 0;border-bottom:1px solid var(--line);transition:padding .18s,background .18s}
    .news-item:hover{padding-left:12px;background:var(--sage)}
    .news-date{font-size:13px;color:var(--muted);line-height:1.45}
    .news-date b{display:block;font-size:22px;color:var(--ink);font-weight:700}
    .news-item h3{margin:0;font-size:17px;line-height:1.5;color:var(--ink)}
    .news-item p{margin:3px 0 0;color:var(--muted);font-size:14px;line-height:1.6}
    .news-arrow{color:var(--terra);font-size:21px}
    .update-note{border-left:3px solid var(--terra);padding:22px;background:var(--mist)}
    .update-note h3{margin:0 0 8px;color:var(--ink);font-size:20px}
    .update-note p{margin:0;color:var(--muted);font-size:14px;line-height:1.8}
    .update-note .text-link{margin-top:16px}
    .faq-section{background:var(--sage)}
    .faq-wrap{margin-top:34px;border-top:1px solid #c5d0c9}
    .faq-item{border-bottom:1px solid #c5d0c9}
    .faq-button{width:100%;padding:19px 2px;display:grid;grid-template-columns:42px 1fr 28px;gap:14px;align-items:center;background:transparent;border:0;text-align:left;color:var(--ink)}
    .faq-q{font-weight:700;color:var(--terra);font-size:13px}
    .faq-question{font-size:17px;font-weight:700;line-height:1.5}
    .faq-plus{font-size:24px;font-weight:300;text-align:right;transition:transform .18s}
    .faq-button[aria-expanded="true"] .faq-plus{transform:rotate(45deg)}
    .faq-answer{display:grid;grid-template-rows:0fr;transition:grid-template-rows .2s ease}
    .faq-answer-inner{overflow:hidden}
    .faq-answer p{margin:0 42px 21px 56px;color:var(--muted);font-size:15px;line-height:1.85}
    .faq-item.open .faq-answer{grid-template-rows:1fr}
    .contact{background:var(--ink);padding:88px 0}
    .contact-grid{display:grid;grid-template-columns:.86fr 1.14fr;gap:68px;align-items:start}
    .contact-info{color:#fff;padding:15px 0}
    .contact-info .eyebrow{color:#efb3a4}
    .contact-info .eyebrow::before{background:#efb3a4}
    .contact-info h2{margin:16px 0 13px;font-size:33px;line-height:1.35}
    .contact-info>p{margin:0;color:#c9d8d2}
    .contact-meta{margin:30px 0 0;padding:0;list-style:none}
    .contact-meta li{display:grid;grid-template-columns:25px 1fr;gap:10px;padding:12px 0;border-top:1px solid rgba(255,255,255,.18);font-size:14px;color:#d9e5df}
    .contact-meta b{color:#f3b7a8}
    .contact-form{background:var(--paper);padding:30px;border-radius:var(--radius)}
    .form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
    .field{display:flex;flex-direction:column;gap:7px}
    .field.full{grid-column:1/-1}
    .field label{color:var(--ink);font-weight:700;font-size:14px}
    .field label span{color:var(--terra)}
    input,select,textarea{width:100%;border:1px solid #c7d1ca;border-radius:4px;background:#fff;padding:10px 12px;color:var(--text);font-size:15px;transition:border-color .18s,box-shadow .18s}
    input,select{height:44px}
    textarea{height:104px;resize:vertical}
    input::placeholder,textarea::placeholder{color:#84908a}
    input:focus,select:focus,textarea:focus{outline:0;border-color:var(--ink);box-shadow:0 0 0 3px rgba(24,60,53,.12)}
    .privacy-check{display:flex;align-items:flex-start;gap:9px;margin:18px 0}
    .privacy-check input{width:17px;height:17px;margin:4px 0 0;accent-color:var(--ink)}
    .privacy-check label{font-size:13px;line-height:1.65;color:var(--muted)}
    .form-note{margin:12px 0 0;color:var(--muted);font-size:13px;line-height:1.65}
    .site-footer{background:#102a25;color:#d1ddd8;padding:54px 0 20px}
    .footer-grid{display:grid;grid-template-columns:1.3fr .7fr .8fr;gap:60px;padding-bottom:38px}
    .footer-brand .brand{color:#fff}
    .footer-brand .brand-mark{border-color:#dce9e2}
    .footer-brand p{max-width:380px;margin:16px 0 0;color:#aec2ba;font-size:14px;line-height:1.8}
    .footer-title{margin:0 0 14px;color:#fff;font-size:15px;font-weight:700}
    .footer-links{display:flex;flex-direction:column;gap:8px}
    .footer-links a{font-size:14px;color:#b8cac3;transition:color .18s}
    .footer-links a:hover{color:#f3b7a8}
    .footer-bottom{border-top:1px solid rgba(255,255,255,.15);padding-top:17px;display:flex;justify-content:space-between;gap:18px;color:#96aaa2;font-size:13px}
    .footer-bottom a:hover{color:#fff}
    @media (max-width:1024px){
      .hero-inner{gap:42px}
      .matrix-layout{gap:38px;grid-template-columns:250px 1fr}
      .channel-grid,.contact-grid{gap:42px}
      .news-grid{gap:38px}
    }
    @media (max-width:767px){
      .container{width:min(100% - 40px,1200px)}
      .site-header{height:66px}
      .desktop-nav{display:none}
      .menu-toggle{display:flex}
      .mobile-panel{top:66px}
      .brand-name{font-size:15px}
      .brand-note{font-size:10px}
      .hero{min-height:auto;padding:54px 0 32px}
      .hero-inner{grid-template-columns:1fr;gap:32px}
      .hero h1{font-size:34px}
      .hero-copy{font-size:16px}
      .hero-points{gap:16px}
      .index-board{padding:16px}
      .metrics{padding-bottom:58px}
      .metrics-panel{grid-template-columns:1fr 1fr}
      .metric{padding:20px;border-bottom:1px solid var(--line)}
      .metric:nth-child(2){border-right:0}
      .metric:nth-child(3),.metric:nth-child(4){border-bottom:0}
      .section{padding:58px 0}
      .section-title{font-size:27px}
      .matrix-layout,.channel-grid,.contact-grid,.news-grid{grid-template-columns:1fr;gap:30px}
      .matrix-side{position:static}
      .matrix-grid{grid-template-columns:1fr}
      .compare-heading{display:block;margin-bottom:25px}
      .compare-grid{grid-template-columns:1fr}
      .compare-arrow{height:48px;transform:rotate(90deg)}
      .data-strip{padding:44px 0}
      .data-strip-grid{grid-template-columns:1fr 1fr;gap:24px}
      .strip-intro{grid-column:1/-1;padding:0}
      .strip-stat{border-left:0;border-top:1px solid rgba(255,255,255,.19);padding:15px 0 0}
      .news-item{grid-template-columns:70px 1fr auto;gap:12px}
      .news-date b{font-size:18px}
      .news-item h3{font-size:16px}
      .news-item p{display:none}
      .faq-answer p{margin-left:56px;margin-right:4px}
      .contact{padding:58px 0}
      .contact-info h2{font-size:29px}
      .form-grid{grid-template-columns:1fr}
      .field.full{grid-column:auto}
      .footer-grid{grid-template-columns:1fr;gap:30px}
      .footer-bottom{display:block;line-height:1.9}
    }
    @media (max-width:420px){
      .hero-actions .btn{width:100%}
      .hero-actions .text-link{width:auto}
      .metric{padding:17px}
      .metric-value{font-size:27px}
      .compare-box{padding:23px}
      .contact-form{padding:21px}
    }
    @media (prefers-reduced-motion:reduce){
      *,*::before,*::after{scroll-behavior:auto!important;transition-duration:.01ms!important;animation-duration:.01ms!important}
    }

/* roulang page: category1 */
:root{
      --ink:#183C35;
      --ink-deep:#102D27;
      --terra:#B85C45;
      --mist:#F6F5F0;
      --sage:#EAF0EC;
      --paper:#FFFDFC;
      --text:#17201D;
      --muted:#5E6964;
      --line:#D5DDD7;
      --radius:6px;
      --shadow:0 8px 20px rgba(23,32,29,.05);
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth;scroll-padding-top:92px}
    body{margin:0;background:var(--mist);color:var(--text);font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;font-size:16px;line-height:1.8}
    a{color:inherit;text-decoration:none}
    button,input,select,textarea{font:inherit}
    button{cursor:pointer}
    img{max-width:100%;display:block}
    .container{width:min(1200px,calc(100% - 64px));margin:0 auto}
    .btn{height:46px;display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:0 20px;border:1px solid transparent;border-radius:4px;font-size:15px;font-weight:700;transition:transform .18s ease,background .18s ease,border-color .18s ease,color .18s ease,box-shadow .18s ease}
    .btn:hover{transform:translateY(-2px)}
    .btn:active{transform:translateY(0)}
    .btn:focus-visible,.nav-link:focus-visible,.filter-button:focus-visible,.faq-button:focus-visible,.page-link:focus-visible,.menu-toggle:focus-visible{outline:3px solid rgba(184,92,69,.3);outline-offset:3px}
    .btn-primary{background:var(--ink);color:#fff}
    .btn-primary:hover{background:var(--ink-deep);box-shadow:0 8px 18px rgba(16,45,39,.18)}
    .btn-outline{background:transparent;border-color:var(--ink);color:var(--ink)}
    .btn-outline:hover{background:var(--sage)}
    .text-link{display:inline-flex;align-items:center;gap:8px;color:var(--ink);font-size:15px;font-weight:700;border-bottom:1px solid transparent;transition:color .18s,border-color .18s}
    .text-link:hover{color:var(--terra);border-color:var(--terra)}
    .site-header{height:76px;background:rgba(255,253,252,.98);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:50}
    .header-inner{height:100%;display:flex;align-items:center;justify-content:space-between;gap:28px}
    .brand{display:flex;align-items:center;gap:11px;min-width:0;color:var(--ink)}
    .brand-mark{width:32px;height:32px;border:2px solid var(--ink);display:grid;place-items:center;position:relative;flex:0 0 auto}
    .brand-mark::before{content:"";width:0;height:0;border-top:6px solid transparent;border-bottom:6px solid transparent;border-left:9px solid var(--terra);margin-left:2px}
    .brand-name{font-size:18px;font-weight:700;white-space:nowrap;line-height:1.2}
    .brand-note{display:block;color:var(--muted);font-size:11px;font-weight:500;margin-top:2px}
    .desktop-nav{display:flex;align-items:center;gap:24px}
    .nav-link{height:76px;display:flex;align-items:center;position:relative;color:var(--muted);font-size:15px;font-weight:600;transition:color .18s}
    .nav-link:hover,.nav-link.active{color:var(--ink)}
    .nav-link.active::after{content:"";position:absolute;bottom:0;left:0;width:24px;height:2px;background:var(--terra)}
    .header-cta{height:40px;padding:0 16px;font-size:14px}
    .menu-toggle{width:42px;height:42px;background:transparent;border:1px solid var(--line);border-radius:4px;display:none;align-items:center;justify-content:center;position:relative}
    .menu-toggle span,.menu-toggle::before,.menu-toggle::after{position:absolute;width:18px;height:2px;background:var(--ink);content:"";transition:transform .2s,opacity .2s}
    .menu-toggle::before{transform:translateY(-6px)}
    .menu-toggle::after{transform:translateY(6px)}
    .menu-toggle.open span{opacity:0}
    .menu-toggle.open::before{transform:rotate(45deg)}
    .menu-toggle.open::after{transform:rotate(-45deg)}
    .mobile-panel{display:none;position:absolute;top:76px;left:0;right:0;padding:12px 20px 20px;background:var(--paper);border-bottom:1px solid var(--line);box-shadow:var(--shadow)}
    .mobile-panel.open{display:block}
    .mobile-panel a{display:flex;align-items:center;min-height:48px;padding:0 10px;border-bottom:1px solid var(--line);font-weight:700;color:var(--ink)}
    .mobile-panel .btn{width:100%;margin-top:14px}
    .page-head{padding:52px 0 42px;background:var(--paper);border-bottom:1px solid var(--line);position:relative;overflow:hidden}
    .page-head::after{content:"";position:absolute;right:8%;bottom:-42px;width:160px;height:160px;border:1px solid var(--line);transform:rotate(45deg);opacity:.7}
    .breadcrumb{display:flex;align-items:center;flex-wrap:wrap;gap:9px;color:var(--muted);font-size:14px}
    .breadcrumb a{transition:color .18s}
    .breadcrumb a:hover{color:var(--terra)}
    .breadcrumb-sep{color:var(--terra)}
    .page-head-inner{position:relative;z-index:1;display:grid;grid-template-columns:minmax(0,1fr) auto;gap:28px;align-items:end}
    .eyebrow{display:flex;align-items:center;gap:9px;color:var(--terra);font-size:13px;font-weight:700;letter-spacing:.08em;margin-top:18px}
    .eyebrow::before{content:"";width:26px;height:2px;background:var(--terra)}
    .page-head h1{margin:13px 0 12px;max-width:750px;color:var(--ink);font-size:44px;line-height:1.3;font-weight:700}
    .page-summary{max-width:720px;margin:0;color:var(--muted)}
    .index-status{min-width:210px;border-left:3px solid var(--terra);padding:6px 0 6px 18px}
    .index-status strong{display:block;color:var(--ink);font-size:22px;line-height:1.25;font-variant-numeric:tabular-nums}
    .index-status span{display:block;margin-top:3px;color:var(--muted);font-size:13px}
    .filter-zone{padding:26px 0;background:var(--sage);border-bottom:1px solid var(--line)}
    .filter-bar{display:flex;align-items:center;gap:18px}
    .filter-label{flex:0 0 auto;color:var(--ink);font-size:14px;font-weight:700}
    .filter-group{display:flex;flex-wrap:wrap;gap:8px;align-items:center}
    .filter-button{min-height:38px;padding:0 13px;border:1px solid var(--line);border-radius:4px;background:var(--paper);color:var(--muted);font-size:14px;font-weight:700;transition:background .18s,border-color .18s,color .18s,transform .18s}
    .filter-button:hover{border-color:var(--ink);color:var(--ink);transform:translateY(-1px)}
    .filter-button.active{background:var(--ink);color:#fff;border-color:var(--ink);box-shadow:inset 0 -2px 0 var(--terra)}
    .sort-select{min-height:38px;margin-left:auto;padding:0 32px 0 12px;border:1px solid var(--line);border-radius:4px;background:var(--paper);color:var(--ink);font-size:14px;font-weight:700}
    .sort-select:focus{border-color:var(--ink);outline:3px solid rgba(184,92,69,.22);outline-offset:2px}
    .content-area{padding:70px 0 92px}
    .content-layout{display:grid;grid-template-columns:260px minmax(0,1fr);gap:48px}
    .filter-summary{align-self:start;position:sticky;top:104px;border-top:3px solid var(--ink);padding-top:18px}
    .filter-summary h2{margin:0 0 8px;color:var(--ink);font-size:20px;line-height:1.4}
    .filter-summary p{margin:0;color:var(--muted);font-size:14px;line-height:1.75}
    .summary-list{margin:22px 0 24px;padding:0;list-style:none;border-top:1px solid var(--line)}
    .summary-list li{display:flex;justify-content:space-between;gap:12px;padding:13px 0;border-bottom:1px solid var(--line);font-size:14px}
    .summary-list span{color:var(--muted)}
    .summary-list strong{color:var(--ink);font-weight:700;font-variant-numeric:tabular-nums}
    .summary-note{padding:16px;background:var(--sage);border-left:2px solid var(--terra);color:var(--muted);font-size:13px;line-height:1.75}
    .list-heading{display:flex;justify-content:space-between;align-items:end;gap:20px;padding-bottom:17px;border-bottom:1px solid var(--line)}
    .list-heading h2{margin:0;color:var(--ink);font-size:28px;line-height:1.35;font-weight:700}
    .list-heading p{margin:0;color:var(--muted);font-size:14px}
    .content-list{margin-top:4px}
    .content-item{display:grid;grid-template-columns:220px minmax(0,1fr);gap:26px;padding:28px 0;border-bottom:1px solid var(--line);transition:background .18s,padding .18s}
    .content-item:hover{background:rgba(234,240,236,.58);padding-left:14px;padding-right:14px}
    .content-thumb{aspect-ratio:16/9;min-height:124px;overflow:hidden;background:var(--ink);border:1px solid rgba(16,45,39,.15);position:relative}
    .content-thumb::before{content:"";position:absolute;inset:14px;border:1px solid rgba(255,255,255,.34)}
    .content-thumb::after{content:"";position:absolute;left:18px;bottom:18px;width:54px;height:4px;background:var(--terra);box-shadow:67px 0 0 rgba(255,255,255,.55),123px 0 0 rgba(255,255,255,.25)}
    .thumb-b{background:#39594f}
    .thumb-c{background:#6d6659}
    .thumb-d{background:#31514b}
    .thumb-e{background:#70594d}
    .thumb-f{background:#23483f}
    .thumb-grid{position:absolute;inset:0;opacity:.22;background-image:linear-gradient(rgba(255,255,255,.55) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.55) 1px,transparent 1px);background-size:24px 24px}
    .thumb-play{position:absolute;top:50%;left:50%;width:38px;height:38px;border:1px solid rgba(255,255,255,.7);border-radius:50%;transform:translate(-50%,-50%)}
    .thumb-play::after{content:"";position:absolute;top:10px;left:14px;width:0;height:0;border-top:8px solid transparent;border-bottom:8px solid transparent;border-left:11px solid #fff}
    .content-body{min-width:0}
    .content-meta-top{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
    .content-tag{display:inline-flex;align-items:center;min-height:24px;padding:0 8px;background:var(--sage);border:1px solid var(--line);color:var(--ink);font-size:12px;font-weight:700}
    .content-code{color:var(--terra);font-size:12px;font-weight:700;letter-spacing:.08em}
    .content-body h3{margin:8px 0 7px;color:var(--text);font-size:20px;line-height:1.45;font-weight:700;transition:color .18s}
    .content-item:hover h3{color:var(--ink)}
    .content-body p{margin:0;color:var(--muted);font-size:14px;line-height:1.85}
    .content-meta-bottom{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-top:14px}
    .meta-list{display:flex;flex-wrap:wrap;gap:14px;color:var(--muted);font-size:13px}
    .meta-list span{display:inline-flex;align-items:center;gap:5px}
    .dot{width:4px;height:4px;background:var(--terra);display:inline-block}
    .content-arrow{flex:0 0 auto;color:var(--ink);font-size:14px;font-weight:700;transition:color .18s,transform .18s}
    .content-item:hover .content-arrow{color:var(--terra);transform:translateX(3px)}
    .pagination{display:flex;align-items:center;justify-content:center;gap:8px;margin-top:40px}
    .page-link{width:40px;height:40px;display:grid;place-items:center;border:1px solid var(--line);background:var(--paper);color:var(--ink);font-size:14px;font-weight:700;transition:background .18s,border-color .18s,color .18s,transform .18s}
    .page-link:hover{border-color:var(--ink);background:var(--sage);transform:translateY(-1px)}
    .page-link.active{background:var(--ink);border-color:var(--ink);color:#fff}
    .guide-strip{padding:42px 0;background:var(--sage);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
    .guide-inner{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:32px;align-items:center}
    .guide-inner h2{margin:0 0 7px;color:var(--ink);font-size:28px;line-height:1.35}
    .guide-inner p{max-width:690px;margin:0;color:var(--muted)}
    .faq-section{padding:82px 0;background:var(--paper)}
    .faq-wrap{max-width:880px}
    .faq-title{margin:0 0 20px;color:var(--ink);font-size:30px;line-height:1.35}
    .faq-item{border-top:1px solid var(--line)}
    .faq-item:last-child{border-bottom:1px solid var(--line)}
    .faq-button{width:100%;min-height:62px;padding:14px 0;display:flex;align-items:center;justify-content:space-between;gap:18px;border:0;background:transparent;text-align:left;color:var(--ink);font-size:16px;font-weight:700}
    .faq-question{display:flex;align-items:center;gap:12px}
    .faq-number{color:var(--terra);font-size:13px;font-variant-numeric:tabular-nums}
    .faq-icon{width:24px;height:24px;position:relative;flex:0 0 auto;border:1px solid var(--line)}
    .faq-icon::before,.faq-icon::after{content:"";position:absolute;top:50%;left:50%;width:10px;height:1px;background:var(--ink);transform:translate(-50%,-50%);transition:transform .18s}
    .faq-icon::after{transform:translate(-50%,-50%) rotate(90deg)}
    .faq-button[aria-expanded="true"] .faq-icon::after{transform:translate(-50%,-50%) rotate(0)}
    .faq-answer{display:grid;grid-template-rows:0fr;transition:grid-template-rows .18s ease}
    .faq-answer-inner{overflow:hidden}
    .faq-answer p{margin:0;padding:0 40px 20px;color:var(--muted);font-size:15px;line-height:1.85}
    .faq-item.open .faq-answer{grid-template-rows:1fr}
    .site-footer{padding:62px 0 24px;background:var(--ink-deep);color:#d8e3de}
    .site-footer .brand{color:#fff}
    .site-footer .brand-mark{border-color:#fff}
    .site-footer .brand-note{color:#aebfb9}
    .footer-grid{display:grid;grid-template-columns:1.4fr .8fr .8fr;gap:64px;padding-bottom:42px}
    .footer-brand p{max-width:400px;margin:18px 0 0;color:#aebfb9;font-size:14px;line-height:1.85}
    .footer-title{margin:0 0 15px;color:#fff;font-size:15px;font-weight:700}
    .footer-links{display:grid;gap:9px}
    .footer-links a{color:#aebfb9;font-size:14px;transition:color .18s,transform .18s}
    .footer-links a:hover{color:#fff;transform:translateX(2px)}
    .footer-bottom{display:flex;align-items:center;justify-content:space-between;gap:20px;padding-top:22px;border-top:1px solid rgba(255,255,255,.18);color:#aebfb9;font-size:13px}
    .footer-bottom a{transition:color .18s}
    .footer-bottom a:hover{color:#fff}
    @media (max-width:1023px){
      .desktop-nav{gap:15px}
      .content-layout{gap:32px}
      .content-item{grid-template-columns:190px minmax(0,1fr);gap:20px}
    }
    @media (max-width:767px){
      .container{width:min(100% - 40px,1200px)}
      .site-header{height:68px}
      .desktop-nav{display:none}
      .header-inner{gap:12px}
      .brand-name{font-size:16px}
      .brand-note{font-size:10px}
      .menu-toggle{display:flex}
      .mobile-panel{top:68px}
      .page-head{padding:34px 0 30px}
      .page-head-inner{grid-template-columns:1fr;gap:22px}
      .page-head h1{font-size:34px}
      .index-status{min-width:0}
      .filter-zone{padding:18px 0}
      .filter-bar{align-items:flex-start;flex-direction:column;gap:10px}
      .sort-select{width:100%;margin-left:0}
      .content-area{padding:52px 0 64px}
      .content-layout{grid-template-columns:1fr;gap:30px}
      .filter-summary{position:static;border:1px solid var(--line);border-top:3px solid var(--ink);padding:17px;background:var(--paper)}
      .summary-list{margin-bottom:16px}
      .list-heading{align-items:flex-start;flex-direction:column;gap:5px}
      .list-heading h2{font-size:25px}
      .content-item{grid-template-columns:145px minmax(0,1fr);gap:16px;padding:22px 0}
      .content-item:hover{padding-left:8px;padding-right:8px}
      .content-body h3{margin-top:7px;font-size:18px}
      .content-body p{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
      .content-meta-bottom{align-items:flex-start;flex-direction:column;gap:8px}
      .guide-inner{grid-template-columns:1fr;gap:22px}
      .guide-inner h2{font-size:25px}
      .faq-section{padding:62px 0}
      .faq-title{font-size:26px}
      .footer-grid{grid-template-columns:1fr;gap:34px}
      .footer-bottom{align-items:flex-start;flex-direction:column}
    }
    @media (max-width:520px){
      .brand-mark{width:29px;height:29px}
      .brand-name{font-size:14px}
      .page-head h1{font-size:31px}
      .page-summary{font-size:15px}
      .filter-group{gap:7px}
      .filter-button{padding:0 10px;font-size:13px}
      .content-item{grid-template-columns:1fr;gap:14px}
      .content-thumb{min-height:0}
      .content-body p{display:block}
      .content-meta-bottom{flex-direction:row;align-items:center}
      .meta-list{gap:10px;font-size:12px}
      .faq-button{font-size:15px}
      .faq-answer p{padding-left:30px;padding-right:20px}
    }
    @media (prefers-reduced-motion:reduce){
      *,*::before,*::after{scroll-behavior:auto!important;transition-duration:.01ms!important;animation-duration:.01ms!important}
    }