/* roulang page: index */
:root {
      --ink-950: #12110f;
      --ink-900: #1a1815;
      --ink-800: #25221e;
      --ink-700: #37312b;
      --paper-100: #f4f0e9;
      --paper-300: #cfc5b8;
      --accent-orange: #f27545;
      --accent-orange-light: #ff9b70;
      --accent-lime: #c5e86c;
      --text-main: #f8f3eb;
      --text-muted: #ada49b;
      --line: rgba(244, 240, 233, .14);
      --radius-lg: 22px;
      --radius-md: 16px;
      --shadow-soft: 0 16px 45px rgba(0,0,0,.18);
    }

    *, *::before, *::after { box-sizing: border-box; }
    html { scroll-behavior: smooth; }
    body {
      margin: 0;
      color: var(--text-main);
      background: var(--ink-950);
      font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", Arial, sans-serif;
      line-height: 1.85;
      letter-spacing: .01em;
    }
    a { color: inherit; text-decoration: none; }
    button, input, select, textarea { font: inherit; }
    button { cursor: pointer; }
    img { display: block; max-width: 100%; }
    ::selection { color: var(--ink-950); background: var(--accent-lime); }
    .site-container { width: min(1180px, calc(100% - 40px)); margin: 0 auto; }
    .grid-texture {
      background-image: linear-gradient(rgba(244,240,233,.045) 1px, transparent 1px),
        linear-gradient(90deg, rgba(244,240,233,.045) 1px, transparent 1px);
      background-size: 42px 42px;
    }
    .section { padding: 104px 0; }
    .section-light { color: var(--ink-950); background: var(--paper-100); }
    .eyebrow {
      display: inline-flex; align-items: center; gap: 9px;
      color: var(--accent-lime); font-size: 12px; font-weight: 700;
      letter-spacing: .16em; text-transform: uppercase;
    }
    .eyebrow::before { content: ""; width: 24px; height: 2px; background: var(--accent-orange); }
    .section-title { margin: 16px 0 12px; font-size: clamp(30px, 4vw, 52px); line-height: 1.18; letter-spacing: -.04em; font-weight: 800; }
    .section-copy { max-width: 650px; color: var(--text-muted); font-size: 16px; }
    .section-light .section-copy { color: #665e56; }
    .site-header {
      position: sticky; top: 0; z-index: 50;
      background: rgba(18,17,15,.94); border-bottom: 1px solid var(--line);
      backdrop-filter: blur(14px);
    }
    .nav-shell { min-height: 76px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
    .brand { display: inline-flex; align-items: center; gap: 10px; font-size: 17px; font-weight: 800; white-space: nowrap; }
    .brand-mark { width: 11px; height: 11px; background: var(--accent-orange); border-radius: 2px; transform: rotate(45deg); box-shadow: 0 0 0 4px rgba(242,117,69,.12); }
    .nav-links { display: flex; align-items: center; gap: 5px; }
    .nav-link {
      position: relative; display: inline-flex; align-items: center; min-height: 42px;
      padding: 0 15px; color: var(--text-muted); font-size: 14px; transition: .25s ease;
    }
    .nav-link::after { content: ""; position: absolute; left: 15px; right: 15px; bottom: 0; height: 2px; background: transparent; transition: .25s ease; }
    .nav-link:hover, .nav-link.active { color: var(--text-main); }
    .nav-link.active::after, .nav-link:hover::after { background: var(--accent-orange); }
    .nav-cta { margin-left: 13px; }
    .mobile-toggle { display: none; border: 1px solid var(--line); color: var(--text-main); background: transparent; border-radius: 10px; padding: 9px 12px; }
    .mobile-toggle:hover { border-color: var(--accent-orange); color: var(--accent-orange-light); }
    .btn {
      display: inline-flex; align-items: center; justify-content: center; gap: 9px;
      min-height: 46px; padding: 0 20px; border-radius: 10px;
      font-size: 14px; font-weight: 700; border: 1px solid transparent; transition: .25s ease;
    }
    .btn-primary { color: var(--ink-950); background: var(--accent-orange); }
    .btn-primary:hover { background: var(--accent-orange-light); transform: translateY(-2px); box-shadow: 0 8px 20px rgba(242,117,69,.22); }
    .btn-secondary { color: var(--text-main); border-color: rgba(244,240,233,.25); background: transparent; }
    .btn-secondary:hover { color: var(--accent-lime); border-color: var(--accent-lime); transform: translateY(-2px); }
    .btn:focus-visible, .nav-link:focus-visible, .mobile-toggle:focus-visible, input:focus-visible, textarea:focus-visible, select:focus-visible, summary:focus-visible {
      outline: 3px solid var(--accent-lime); outline-offset: 3px;
    }
    .hero { padding: 72px 0 82px; position: relative; overflow: hidden; }
    .hero::before { content: ""; position: absolute; width: 520px; height: 520px; right: -180px; top: 40px; border: 1px solid rgba(242,117,69,.2); border-radius: 50%; }
    .hero-grid { display: grid; grid-template-columns: 1.18fr .82fr; gap: 26px; align-items: stretch; }
    .hero-main, .hero-mini, .hero-footer {
      border: 1px solid var(--line); background: var(--ink-900); border-radius: var(--radius-lg); box-shadow: var(--shadow-soft);
    }
    .hero-main { min-height: 450px; padding: clamp(30px, 5vw, 68px); display: flex; flex-direction: column; justify-content: center; position: relative; overflow: hidden; }
    .hero-main::after { content: "INDEX / 01"; position: absolute; right: 30px; top: 30px; color: rgba(244,240,233,.25); font-size: 11px; letter-spacing: .18em; }
    .hero h1 { max-width: 720px; margin: 22px 0 20px; font-size: clamp(42px, 6vw, 76px); line-height: 1.08; letter-spacing: -.065em; font-weight: 900; }
    .hero-lead { max-width: 650px; color: var(--text-muted); font-size: 17px; line-height: 1.95; }
    .hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; }
    .hero-side { display: grid; grid-template-rows: 1fr 1fr; gap: 26px; }
    .hero-mini { padding: 27px; position: relative; overflow: hidden; }
    .hero-mini.orange { background: var(--accent-orange); color: var(--ink-950); }
    .hero-mini h3 { margin: 22px 0 8px; font-size: 24px; line-height: 1.25; }
    .hero-mini p { margin: 0; font-size: 14px; color: var(--text-muted); }
    .orange p { color: rgba(18,17,15,.72); }
    .index-number { color: var(--accent-lime); font-size: 13px; font-weight: 800; letter-spacing: .14em; }
    .orange .index-number { color: var(--ink-950); }
    .orbit { position: absolute; right: -55px; bottom: -95px; width: 230px; height: 230px; border: 1px solid rgba(18,17,15,.28); border-radius: 50%; }
    .hero-footer { grid-column: 1 / -1; display: flex; justify-content: space-between; align-items: center; padding: 18px 24px; background: #201d19; }
    .hero-footer span { color: var(--text-muted); font-size: 13px; }
    .status { display: inline-flex; align-items: center; gap: 8px; color: var(--accent-lime); font-size: 13px; }
    .status i { width: 7px; height: 7px; display: inline-block; border-radius: 50%; background: var(--accent-lime); box-shadow: 0 0 0 5px rgba(197,232,108,.12); }
    .feature-layout { display: grid; grid-template-columns: .75fr 1.25fr; gap: 70px; align-items: start; }
    .feature-list { border-top: 1px solid rgba(18,17,15,.18); }
    .feature-item { display: grid; grid-template-columns: 55px 1fr auto; gap: 18px; align-items: center; padding: 23px 0; border-bottom: 1px solid rgba(18,17,15,.18); transition: .25s ease; }
    .feature-item:hover { padding-left: 8px; border-color: var(--accent-orange); }
    .feature-item b { color: var(--accent-orange); font-size: 14px; }
    .feature-item h3 { margin: 0 0 4px; font-size: 19px; }
    .feature-item p { margin: 0; color: #665e56; font-size: 14px; line-height: 1.7; }
    .arrow { color: var(--accent-orange); font-size: 22px; }
    .metrics { padding: 72px 0; background: #201d19; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
    .metrics-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
    .metric { padding: 22px 0 22px 24px; border-left: 2px solid var(--accent-orange); }
    .metric strong { display: block; color: var(--accent-orange-light); font-size: 42px; line-height: 1; letter-spacing: -.05em; }
    .metric span { display: block; margin-top: 12px; color: var(--text-muted); font-size: 14px; }
    .topic-layout { display: grid; grid-template-columns: 1.2fr .8fr; gap: 24px; }
    .topic-card { min-height: 300px; padding: 32px; border: 1px solid var(--line); border-radius: var(--radius-lg); background: var(--ink-800); position: relative; overflow: hidden; transition: .3s ease; }
    .topic-card:hover, .compact-card:hover { transform: translateY(-4px); border-color: var(--accent-orange); box-shadow: var(--shadow-soft); }
    .topic-card.large { min-height: 390px; display: flex; flex-direction: column; justify-content: flex-end; }
    .topic-card.large::before { content: ""; position: absolute; inset: 0; background: linear-gradient(135deg, rgba(242,117,69,.3), transparent 42%, rgba(197,232,108,.12)); }
    .topic-card > * { position: relative; z-index: 1; }
    .topic-card h3 { max-width: 470px; margin: 18px 0 9px; font-size: clamp(25px, 3vw, 38px); line-height: 1.2; }
    .topic-card p { max-width: 500px; margin: 0 0 22px; color: var(--text-muted); font-size: 14px; }
    .topic-stack { display: grid; gap: 24px; }
    .compact-card { padding: 26px; border: 1px solid var(--line); border-radius: var(--radius-lg); background: #201d19; transition: .3s ease; }
    .compact-card h3 { margin: 14px 0 6px; font-size: 21px; }
    .compact-card p { margin: 0 0 16px; color: var(--text-muted); font-size: 14px; }
    .tag { display: inline-flex; padding: 4px 9px; color: var(--accent-lime); border: 1px solid rgba(197,232,108,.35); border-radius: 5px; font-size: 11px; line-height: 1.4; }
    .tag.orange { color: var(--accent-orange-light); border-color: rgba(242,117,69,.45); }
    .path-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: 55px; align-items: center; }
    .path-list { counter-reset: path; }
    .path-item { counter-increment: path; display: grid; grid-template-columns: 54px 1fr; gap: 18px; padding: 20px 0; border-bottom: 1px solid var(--line); }
    .path-item::before { content: "0" counter(path); color: var(--accent-orange); font-size: 14px; font-weight: 800; }
    .path-item h3 { margin: 0 0 3px; font-size: 19px; }
    .path-item p { margin: 0; color: var(--text-muted); font-size: 14px; }
    .info-panel { padding: 30px; border: 1px solid var(--line); border-radius: var(--radius-lg); background: #201d19; }
    .info-panel h3 { margin: 0 0 18px; font-size: 23px; }
    .info-row { display: flex; align-items: center; justify-content: space-between; gap: 15px; padding: 15px 0; border-bottom: 1px solid var(--line); color: var(--text-muted); font-size: 14px; }
    .info-row b { color: var(--text-main); }
    .news-layout { display: grid; grid-template-columns: 1fr .72fr; gap: 55px; }
    .news-list { border-top: 1px solid var(--line); }
    .news-item { display: grid; grid-template-columns: 92px 1fr auto; gap: 18px; align-items: center; padding: 20px 0; border-bottom: 1px solid var(--line); transition: .2s; }
    .news-item:hover { color: var(--accent-orange-light); padding-left: 8px; }
    .news-date { color: var(--accent-lime); font-size: 12px; }
    .news-item h3 { margin: 0; font-size: 16px; font-weight: 700; }
    .news-item p { margin: 3px 0 0; color: var(--text-muted); font-size: 13px; line-height: 1.65; }
    .news-arrow { color: var(--accent-orange); }
    .faq-wrap { max-width: 860px; margin: 34px auto 0; }
    .faq-item { border-top: 1px solid var(--line); }
    .faq-item:last-child { border-bottom: 1px solid var(--line); }
    .faq-item summary { display: flex; justify-content: space-between; gap: 20px; padding: 22px 0; color: var(--text-main); font-size: 17px; font-weight: 700; list-style: none; cursor: pointer; }
    .faq-item summary::-webkit-details-marker { display: none; }
    .faq-item summary::after { content: "+"; color: var(--accent-orange); font-size: 24px; line-height: 1; }
    .faq-item[open] summary::after { content: "−"; }
    .faq-answer { max-width: 760px; padding: 0 45px 24px 0; color: var(--text-muted); font-size: 14px; line-height: 1.9; }
    .contact-band { color: var(--ink-950); background: var(--accent-orange); padding: 78px 0; }
    .contact-grid { display: grid; grid-template-columns: .8fr 1.2fr; gap: 70px; align-items: start; }
    .contact-band .section-title { margin-top: 12px; }
    .contact-band p { color: rgba(18,17,15,.72); }
    .contact-form { display: grid; gap: 15px; }
    .form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 15px; }
    .field label { display: block; margin-bottom: 6px; font-size: 13px; font-weight: 700; }
    .field input, .field select, .field textarea { width: 100%; border: 1px solid rgba(18,17,15,.28); border-radius: 9px; padding: 12px 13px; color: var(--ink-950); background: rgba(255,255,255,.5); transition: .2s; }
    .field textarea { min-height: 112px; resize: vertical; }
    .field input:hover, .field select:hover, .field textarea:hover { background: rgba(255,255,255,.72); }
    .field input:focus, .field select:focus, .field textarea:focus { outline: none; border-color: var(--ink-950); background: #fff; box-shadow: 0 0 0 3px rgba(18,17,15,.12); }
    .check-line { display: flex; align-items: flex-start; gap: 9px; color: rgba(18,17,15,.72); font-size: 12px; line-height: 1.6; }
    .check-line input { margin-top: 5px; accent-color: var(--ink-950); }
    .footer { padding: 54px 0 26px; background: var(--ink-900); border-top: 1px solid var(--line); }
    .footer-grid { display: grid; grid-template-columns: 1.3fr 1fr 1fr; gap: 45px; padding-bottom: 42px; }
    .footer h3 { margin: 0 0 15px; font-size: 14px; color: var(--text-main); }
    .footer p, .footer a { color: var(--text-muted); font-size: 13px; }
    .footer a { display: block; margin: 7px 0; transition: .2s; }
    .footer a:hover { color: var(--accent-orange-light); padding-left: 4px; }
    .footer-bottom { display: flex; justify-content: space-between; gap: 20px; padding-top: 22px; border-top: 1px solid var(--line); color: var(--text-muted); font-size: 12px; }
    .back-top { color: var(--accent-lime); }
    @media (max-width: 900px) {
      .hero-grid, .feature-layout, .topic-layout, .path-grid, .news-layout, .contact-grid { grid-template-columns: 1fr; }
      .hero-side { grid-template-columns: 1fr 1fr; grid-template-rows: none; }
      .hero-footer { grid-column: auto; }
      .metrics-grid { grid-template-columns: repeat(2, 1fr); }
      .footer-grid { grid-template-columns: 1fr 1fr; }
      .contact-grid { gap: 35px; }
    }
    @media (max-width: 680px) {
      .site-container { width: min(100% - 28px, 1180px); }
      .section { padding: 70px 0; }
      .nav-shell { min-height: 68px; }
      .mobile-toggle { display: block; }
      .nav-links { display: none; position: absolute; left: 14px; right: 14px; top: 68px; padding: 10px; flex-direction: column; align-items: stretch; background: var(--ink-900); border: 1px solid var(--line); border-radius: 12px; box-shadow: var(--shadow-soft); }
      .nav-links.open { display: flex; }
      .nav-link { min-height: 50px; padding: 0 15px; border-bottom: 1px solid var(--line); }
      .nav-link::after { left: 0; right: auto; bottom: 12px; width: 3px; height: 24px; }
      .nav-cta { margin: 7px 0 0; }
      .hero { padding-top: 40px; }
      .hero-main { min-height: 420px; padding: 30px 23px; }
      .hero h1 { font-size: 43px; }
      .hero-side { grid-template-columns: 1fr; }
      .hero-footer { display: block; }
      .hero-footer span { display: block; margin-top: 9px; }
      .metrics-grid { grid-template-columns: 1fr 1fr; gap: 8px; }
      .metric { padding-left: 13px; }
      .metric strong { font-size: 31px; }
      .feature-item { grid-template-columns: 40px 1fr; }
      .feature-item .arrow { display: none; }
      .topic-card.large { min-height: 330px; }
      .news-item { grid-template-columns: 70px 1fr; }
      .news-arrow { display: none; }
      .form-row, .footer-grid { grid-template-columns: 1fr; }
      .footer-bottom { display: block; }
      .footer-bottom span { display: block; margin-bottom: 9px; }
    }
    @media (max-width: 390px) {
      .hero h1 { font-size: 38px; }
      .btn { width: 100%; }
      .hero-actions { display: grid; }
    }

/* roulang page: category2 */
:root{
 --ink-950:#12110f;--ink-900:#1a1815;--ink-800:#25221e;--ink-700:#37312b;
 --paper-100:#f4f0e9;--paper-300:#cfc5b8;--accent-orange:#f27545;
 --accent-orange-light:#ff9b70;--accent-lime:#c5e86c;--text-main:#f8f3eb;
 --text-muted:#ada49b;--line:rgba(244,240,233,.14);--radius-lg:22px;
 --radius-md:16px;--shadow-soft:0 16px 45px rgba(0,0,0,.18)
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--ink-950);color:var(--text-main);font-family:"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",Arial,sans-serif;line-height:1.85;letter-spacing:.01em}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit}
button{cursor:pointer}
img{display:block;max-width:100%}
.site-container{width:min(1180px,calc(100% - 40px));margin:0 auto}
.grid-texture{background-image:linear-gradient(rgba(244,240,233,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(244,240,233,.045) 1px,transparent 1px);background-size:42px 42px}
.section{padding:100px 0}
.section-light{background:var(--paper-100);color:var(--ink-950)}
.section-light .section-copy{color:#665e56}
.eyebrow{display:inline-flex;align-items:center;gap:9px;color:var(--accent-lime);font-size:12px;font-weight:800;letter-spacing:.16em}
.eyebrow:before{content:"";width:24px;height:2px;background:var(--accent-orange)}
.section-light .eyebrow{color:#6c7d26}
.section-title{margin:15px 0 12px;font-size:clamp(30px,4vw,50px);line-height:1.18;letter-spacing:-.045em;font-weight:900}
.section-copy{max-width:670px;color:var(--text-muted);font-size:16px}
.site-header{position:sticky;top:0;z-index:50;background:rgba(18,17,15,.94);border-bottom:1px solid var(--line);backdrop-filter:blur(14px)}
.nav-shell{min-height:76px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.brand{display:inline-flex;align-items:center;gap:10px;font-size:17px;font-weight:800;white-space:nowrap}
.brand-mark{width:11px;height:11px;background:var(--accent-orange);border-radius:2px;transform:rotate(45deg);box-shadow:0 0 0 4px rgba(242,117,69,.12)}
.nav-links{display:flex;align-items:center;gap:5px}
.nav-link{position:relative;display:inline-flex;align-items:center;min-height:42px;padding:0 15px;color:var(--text-muted);font-size:14px;transition:.25s ease}
.nav-link:after{content:"";position:absolute;left:15px;right:15px;bottom:0;height:2px;background:transparent;transition:.25s ease}
.nav-link:hover,.nav-link.active{color:var(--text-main)}
.nav-link.active:after,.nav-link:hover:after{background:var(--accent-orange)}
.nav-cta{margin-left:13px}
.mobile-toggle{display:none;border:1px solid var(--line);color:var(--text-main);background:transparent;border-radius:10px;padding:9px 12px}
.mobile-toggle:hover{border-color:var(--accent-orange);color:var(--accent-orange-light)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;min-height:46px;padding:0 20px;border-radius:10px;font-size:14px;font-weight:800;border:1px solid transparent;transition:.25s ease}
.btn-primary{color:var(--ink-950);background:var(--accent-orange)}
.btn-primary:hover{background:var(--accent-orange-light);transform:translateY(-2px);box-shadow:0 8px 20px rgba(242,117,69,.22)}
.btn-secondary{color:var(--text-main);border-color:rgba(244,240,233,.28);background:transparent}
.btn-secondary:hover{color:var(--accent-lime);border-color:var(--accent-lime);transform:translateY(-2px)}
.btn:active{transform:translateY(0)}
.btn:disabled{opacity:.48;cursor:not-allowed;transform:none}
.btn:focus-visible,.nav-link:focus-visible,.mobile-toggle:focus-visible,.filter-tag:focus-visible,.faq-button:focus-visible,input:focus-visible,textarea:focus-visible{outline:3px solid var(--accent-lime);outline-offset:3px}
.breadcrumb{padding:24px 0 0;color:var(--text-muted);font-size:13px}
.breadcrumb a:hover{color:var(--accent-orange-light)}
.breadcrumb span{margin:0 8px;color:#756e66}
.category-hero{position:relative;padding:53px 0 84px;overflow:hidden}
.category-hero:before{content:"";position:absolute;right:-180px;top:-150px;width:520px;height:520px;border:1px solid rgba(242,117,69,.19);border-radius:50%}
.category-hero:after{content:"";position:absolute;right:12%;top:54px;width:14px;height:14px;border-radius:50%;background:var(--accent-lime);box-shadow:0 0 0 8px rgba(197,232,108,.08)}
.category-grid{position:relative;display:grid;grid-template-columns:1.1fr .9fr;gap:54px;align-items:center}
.category-hero h1{max-width:670px;margin:20px 0;font-size:clamp(43px,6vw,72px);line-height:1.08;letter-spacing:-.07em;font-weight:900}
.category-lead{max-width:645px;color:var(--text-muted);font-size:17px}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:28px}
.index-panel{position:relative;min-height:350px;padding:28px;border:1px solid var(--line);border-radius:var(--radius-lg);background:linear-gradient(135deg,#27231e,#181613);box-shadow:var(--shadow-soft);overflow:hidden}
.index-panel:before{content:"";position:absolute;width:270px;height:270px;right:-90px;bottom:-120px;border:36px solid rgba(242,117,69,.14);border-radius:50%}
.index-panel-top{display:flex;align-items:center;justify-content:space-between;padding-bottom:18px;border-bottom:1px solid var(--line);font-size:12px;color:var(--text-muted);letter-spacing:.13em}
.live-dot{display:inline-flex;gap:7px;align-items:center;color:var(--accent-lime);font-weight:700}
.live-dot i{width:7px;height:7px;background:var(--accent-lime);border-radius:50%;box-shadow:0 0 0 5px rgba(197,232,108,.1)}
.index-number{position:relative;margin:32px 0 4px;color:var(--accent-orange);font-weight:900;font-size:84px;line-height:1;letter-spacing:-.08em}
.index-label{position:relative;font-size:21px;font-weight:800}
.index-desc{position:relative;max-width:310px;margin:11px 0 24px;color:var(--text-muted);font-size:14px}
.index-tags{position:relative;display:flex;gap:8px;flex-wrap:wrap}
.badge{display:inline-flex;align-items:center;gap:6px;border:1px solid rgba(244,240,233,.18);border-radius:999px;padding:5px 10px;color:var(--paper-300);font-size:12px;line-height:1.4}
.badge.orange{border-color:rgba(242,117,69,.5);color:var(--accent-orange-light)}
.badge.lime{border-color:rgba(197,232,108,.42);color:var(--accent-lime)}
.content-layout{display:grid;grid-template-columns:minmax(0,1fr) 310px;gap:32px;align-items:start}
.topic-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.topic-card{position:relative;overflow:hidden;border:1px solid var(--line);border-radius:var(--radius-md);background:var(--ink-900);transition:.28s ease}
.topic-card:hover{border-color:rgba(242,117,69,.65);transform:translateY(-4px);box-shadow:var(--shadow-soft)}
.topic-card.large{grid-column:1/-1;display:grid;grid-template-columns:1.05fr .95fr;min-height:300px}
.cover{position:relative;min-height:180px;background:#302920;overflow:hidden}
.cover:before,.cover:after{content:"";position:absolute;border:1px solid rgba(244,240,233,.18);border-radius:50%}
.cover:before{width:220px;height:220px;right:-65px;top:-70px}
.cover:after{width:115px;height:115px;left:13%;bottom:-52px}
.cover-orange{background:linear-gradient(135deg,#4b3326,#251c18)}
.cover-lime{background:linear-gradient(135deg,#37402a,#1c1d17)}
.cover-sand{background:linear-gradient(135deg,#4a4034,#211d18)}
.cover-dark{background:linear-gradient(135deg,#33302a,#191816)}
.cover .cover-code{position:absolute;left:20px;top:18px;color:var(--paper-100);font-size:12px;letter-spacing:.16em;font-weight:800}
.cover .cover-line{position:absolute;left:20px;right:20px;bottom:24px;height:2px;background:var(--accent-orange)}
.cover-lime .cover-line{background:var(--accent-lime)}
.card-body{padding:22px}
.large .card-body{display:flex;flex-direction:column;justify-content:center;padding:32px}
.card-meta{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:13px;color:var(--text-muted);font-size:12px}
.card-title{margin:0;color:var(--text-main);font-size:22px;line-height:1.35;font-weight:850;letter-spacing:-.025em}
.large .card-title{font-size:30px}
.card-copy{margin:10px 0 19px;color:var(--text-muted);font-size:14px;line-height:1.8}
.card-link{display:inline-flex;align-items:center;gap:8px;color:var(--accent-orange-light);font-size:14px;font-weight:800}
.card-link:hover{color:var(--accent-lime)}
.card-link span{transition:.2s ease}.card-link:hover span{transform:translateX(4px)}
.side-panel{border:1px solid var(--line);border-radius:var(--radius-md);background:var(--ink-900);overflow:hidden}
.side-panel+.side-panel{margin-top:18px}
.side-heading{display:flex;justify-content:space-between;align-items:center;padding:18px 19px;border-bottom:1px solid var(--line)}
.side-heading h2{margin:0;font-size:16px;font-weight:850}
.side-heading span{color:var(--accent-orange);font-size:12px;letter-spacing:.1em}
.tag-cloud{display:flex;flex-wrap:wrap;gap:9px;padding:18px}
.filter-tag{border:1px solid var(--line);border-radius:8px;padding:7px 10px;background:transparent;color:var(--paper-300);font-size:13px;transition:.2s ease}
.filter-tag:hover,.filter-tag.active{border-color:var(--accent-orange);color:var(--text-main);background:rgba(242,117,69,.1)}
.update-list{padding:3px 18px 12px}
.update-item{display:grid;grid-template-columns:28px 1fr;gap:11px;padding:14px 0;border-bottom:1px solid var(--line)}
.update-item:last-child{border-bottom:0}
.update-no{color:var(--accent-lime);font-size:12px;font-weight:800}
.update-item b{display:block;font-size:14px;line-height:1.45}
.update-item small{color:var(--text-muted);font-size:12px}
.notice{padding:19px}
.notice p{margin:0;color:var(--text-muted);font-size:13px;line-height:1.8}
.notice strong{display:block;margin-bottom:7px;color:var(--accent-orange-light);font-size:14px}
.path-section{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:#171613}
.path-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:50px;align-items:center}
.path-list{padding:0;margin:0;list-style:none}
.path-list li{display:grid;grid-template-columns:44px 1fr auto;gap:14px;align-items:center;padding:20px 0;border-bottom:1px solid var(--line)}
.path-list li:last-child{border-bottom:0}
.path-no{color:var(--accent-orange);font-size:13px;font-weight:900}
.path-list h3{margin:0;font-size:17px}
.path-list p{margin:3px 0 0;color:var(--text-muted);font-size:13px}
.path-arrow{color:var(--accent-lime);font-size:18px}
.faq-wrap{max-width:900px;margin:0 auto}
.faq-item{border-bottom:1px solid rgba(18,17,15,.18)}
.faq-button{display:flex;width:100%;align-items:center;justify-content:space-between;gap:20px;padding:22px 0;border:0;background:transparent;color:var(--ink-950);text-align:left;font-size:17px;font-weight:850}
.faq-symbol{display:grid;width:28px;height:28px;flex:0 0 28px;place-items:center;border:1px solid #978a7d;border-radius:50%;color:var(--accent-orange);font-size:20px;transition:.25s ease}
.faq-item.open .faq-symbol{background:var(--accent-orange);border-color:var(--accent-orange);color:var(--ink-950);transform:rotate(45deg)}
.faq-answer{display:none;padding:0 48px 22px 0;color:#665e56;font-size:15px}
.faq-item.open .faq-answer{display:block}
.cta-box{position:relative;overflow:hidden;display:grid;grid-template-columns:1fr auto;gap:32px;align-items:center;padding:42px 48px;border:1px solid rgba(242,117,69,.45);border-radius:var(--radius-lg);background:#25201b}
.cta-box:after{content:"";position:absolute;right:-110px;bottom:-150px;width:310px;height:310px;border:25px solid rgba(197,232,108,.12);border-radius:50%}
.cta-box h2{position:relative;margin:0 0 8px;font-size:31px;line-height:1.25;font-weight:900}
.cta-box p{position:relative;max-width:650px;margin:0;color:var(--text-muted);font-size:15px}
.cta-box .btn{position:relative;white-space:nowrap}
.footer{padding:70px 0 24px;background:var(--ink-900);border-top:1px solid var(--line)}
.footer-grid{display:grid;grid-template-columns:1.35fr .8fr .8fr;gap:55px;padding-bottom:48px}
.footer h3{margin:0 0 14px;font-size:14px;color:var(--paper-100)}
.footer p{margin:0 0 8px;color:var(--text-muted);font-size:13px}
.footer-grid a:not(.brand){display:block;margin:8px 0;color:var(--text-muted);font-size:13px;transition:.2s}
.footer-grid a:not(.brand):hover{color:var(--accent-orange-light);padding-left:3px}
.footer-bottom{display:flex;justify-content:space-between;gap:20px;padding-top:20px;border-top:1px solid var(--line);color:#827970;font-size:12px}
.back-top{color:var(--paper-300);transition:.2s}.back-top:hover{color:var(--accent-lime)}
@media(max-width:1024px){
 .category-grid{gap:30px}.content-layout{grid-template-columns:1fr}.sidebar{display:grid;grid-template-columns:1fr 1fr;gap:18px}.side-panel+.side-panel{margin-top:0}.sidebar .side-panel:last-child{grid-column:1/-1}.path-grid{gap:30px}.footer-grid{gap:30px}
}
@media(max-width:768px){
 .site-container{width:min(100% - 32px,1180px)}.section{padding:72px 0}.nav-shell{min-height:68px}.mobile-toggle{display:inline-flex}.nav-links{display:none;position:absolute;left:16px;right:16px;top:68px;padding:12px;background:var(--ink-900);border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow-soft);flex-direction:column;align-items:stretch}.nav-links.open{display:flex}.nav-link{justify-content:flex-start;padding:0 13px}.nav-link:after{left:13px;right:13px}.nav-cta{margin:8px 0 2px}.category-hero{padding:36px 0 66px}.category-grid{grid-template-columns:1fr}.index-panel{min-height:300px}.topic-card.large{grid-template-columns:1fr}.large .cover{min-height:210px}.sidebar{grid-template-columns:1fr}.sidebar .side-panel:last-child{grid-column:auto}.path-grid{grid-template-columns:1fr;gap:24px}.cta-box{grid-template-columns:1fr;padding:33px 28px}.footer-grid{grid-template-columns:1fr 1fr}.footer-grid>div:first-child{grid-column:1/-1}
}
@media(max-width:520px){
 .category-hero h1{font-size:42px}.category-lead{font-size:15px}.topic-grid{grid-template-columns:1fr}.topic-card.large{grid-column:auto}.large .card-title{font-size:25px}.card-body,.large .card-body{padding:20px}.cover{min-height:165px}.hero-actions .btn{width:100%}.path-list li{grid-template-columns:34px 1fr 20px}.footer-grid{grid-template-columns:1fr;gap:22px}.footer-grid>div:first-child{grid-column:auto}.footer-bottom{flex-direction:column}.breadcrumb{font-size:12px}.cta-box h2{font-size:26px}
}

/* roulang page: category1 */
:root {
      --ink-950: #12110f;
      --ink-900: #1a1815;
      --ink-800: #25221e;
      --ink-700: #37312b;
      --paper-100: #f4f0e9;
      --paper-300: #cfc5b8;
      --accent-orange: #f27545;
      --accent-orange-light: #ff9b70;
      --accent-lime: #c5e86c;
      --text-main: #f8f3eb;
      --text-muted: #ada49b;
      --line: rgba(244, 240, 233, .14);
      --radius-lg: 22px;
      --radius-md: 16px;
      --shadow-soft: 0 16px 45px rgba(0,0,0,.18);
    }

    * { box-sizing: border-box; }
    html { scroll-behavior: smooth; }
    body {
      margin: 0;
      color: var(--text-main);
      background: var(--ink-950);
      font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", Arial, sans-serif;
      line-height: 1.85;
      letter-spacing: .01em;
    }
    a { color: inherit; text-decoration: none; }
    button, input, select, textarea { font: inherit; }
    button { cursor: pointer; }
    img { display: block; max-width: 100%; }
    ::selection { background: var(--accent-orange); color: var(--ink-950); }

    .site-container { width: min(1180px, calc(100% - 40px)); margin: 0 auto; }
    .section { padding: 92px 0; }
    .grid-texture {
      background-image: linear-gradient(rgba(244,240,233,.045) 1px, transparent 1px), linear-gradient(90deg, rgba(244,240,233,.045) 1px, transparent 1px);
      background-size: 42px 42px;
    }
    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 9px;
      color: var(--accent-lime);
      font-size: 12px;
      font-weight: 800;
      letter-spacing: .15em;
    }
    .eyebrow::before { content: ""; width: 24px; height: 2px; background: var(--accent-orange); }
    .section-title {
      margin: 15px 0 11px;
      font-size: clamp(30px, 4vw, 48px);
      line-height: 1.2;
      letter-spacing: -.045em;
      font-weight: 900;
    }
    .section-copy { margin: 0; max-width: 650px; color: var(--text-muted); font-size: 16px; }
    .section-light { background: var(--paper-100); color: var(--ink-950); }
    .section-light .section-copy { color: #655d54; }

    .site-header {
      position: sticky;
      top: 0;
      z-index: 50;
      background: rgba(18,17,15,.94);
      border-bottom: 1px solid var(--line);
      backdrop-filter: blur(14px);
    }
    .nav-shell {
      min-height: 76px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 22px;
    }
    .brand {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      font-size: 17px;
      font-weight: 900;
      white-space: nowrap;
      letter-spacing: -.03em;
    }
    .brand-mark {
      width: 11px;
      height: 11px;
      border-radius: 2px;
      background: var(--accent-orange);
      transform: rotate(45deg);
      box-shadow: 0 0 0 4px rgba(242,117,69,.12);
    }
    .nav-links { display: flex; align-items: center; gap: 5px; }
    .nav-link {
      position: relative;
      display: inline-flex;
      align-items: center;
      min-height: 42px;
      padding: 0 15px;
      color: var(--text-muted);
      font-size: 14px;
      transition: color .25s ease;
    }
    .nav-link::after {
      content: "";
      position: absolute;
      left: 15px;
      right: 15px;
      bottom: 0;
      height: 2px;
      background: transparent;
      transition: background .25s ease;
    }
    .nav-link:hover, .nav-link.active { color: var(--text-main); }
    .nav-link.active::after, .nav-link:hover::after { background: var(--accent-orange); }
    .nav-cta { margin-left: 12px; }
    .mobile-toggle {
      display: none;
      border: 1px solid var(--line);
      border-radius: 10px;
      padding: 9px 12px;
      color: var(--text-main);
      background: transparent;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 9px;
      min-height: 46px;
      padding: 0 20px;
      border: 1px solid transparent;
      border-radius: 10px;
      font-size: 14px;
      font-weight: 800;
      transition: transform .25s ease, background .25s ease, border-color .25s ease, color .25s ease, box-shadow .25s ease;
    }
    .btn-primary { color: var(--ink-950); background: var(--accent-orange); }
    .btn-primary:hover { background: var(--accent-orange-light); transform: translateY(-2px); box-shadow: 0 10px 22px rgba(242,117,69,.2); }
    .btn-secondary { color: var(--text-main); background: transparent; border-color: rgba(244,240,233,.28); }
    .btn-secondary:hover { color: var(--accent-lime); border-color: var(--accent-lime); transform: translateY(-2px); }
    .btn:active { transform: translateY(0); }
    .btn:disabled { cursor: not-allowed; opacity: .48; transform: none; }
    .btn:focus-visible, .nav-link:focus-visible, .mobile-toggle:focus-visible, .filter-pill:focus-visible, .faq-button:focus-visible, input:focus-visible, textarea:focus-visible, select:focus-visible {
      outline: 3px solid var(--accent-lime);
      outline-offset: 3px;
    }

    .breadcrumb {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 9px;
      padding-top: 32px;
      color: var(--text-muted);
      font-size: 13px;
    }
    .breadcrumb a:hover { color: var(--accent-orange-light); }
    .breadcrumb i { color: var(--accent-orange); font-style: normal; }

    .category-hero {
      position: relative;
      padding: 38px 0 72px;
      overflow: hidden;
    }
    .category-hero::after {
      content: "GUIDE / 01";
      position: absolute;
      right: 4%;
      bottom: 18px;
      color: rgba(244,240,233,.07);
      font-weight: 900;
      font-size: clamp(48px, 10vw, 130px);
      letter-spacing: -.08em;
      pointer-events: none;
    }
    .hero-panel {
      position: relative;
      display: grid;
      grid-template-columns: 1.08fr .92fr;
      gap: 24px;
      padding: clamp(26px, 4vw, 54px);
      overflow: hidden;
      border: 1px solid var(--line);
      border-radius: var(--radius-lg);
      background: linear-gradient(115deg, #1c1916 0%, #25211c 100%);
      box-shadow: var(--shadow-soft);
    }
    .hero-panel::before {
      content: "";
      position: absolute;
      right: -70px;
      top: -95px;
      width: 320px;
      height: 320px;
      border: 1px solid rgba(242,117,69,.32);
      border-radius: 50%;
    }
    .hero-content { position: relative; z-index: 1; }
    .hero-content h1 {
      margin: 18px 0;
      max-width: 680px;
      font-size: clamp(38px, 5.3vw, 67px);
      font-weight: 900;
      line-height: 1.1;
      letter-spacing: -.07em;
    }
    .hero-content p {
      max-width: 610px;
      margin: 0;
      color: var(--text-muted);
      font-size: 16px;
    }
    .hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
    .hero-status {
      position: relative;
      z-index: 1;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      min-height: 290px;
      padding: 25px;
      border: 1px solid rgba(244,240,233,.15);
      border-radius: var(--radius-md);
      background: rgba(18,17,15,.54);
    }
    .status-row { display: flex; justify-content: space-between; align-items: center; gap: 14px; font-size: 13px; color: var(--text-muted); }
    .status-dot { display: inline-flex; align-items: center; gap: 8px; color: var(--accent-lime); font-weight: 800; }
    .status-dot::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: var(--accent-lime); box-shadow: 0 0 0 5px rgba(197,232,108,.1); }
    .hero-number { margin: 18px 0 4px; font-size: 72px; line-height: 1; color: var(--accent-orange); font-weight: 900; letter-spacing: -.09em; }
    .mini-tags { display: flex; flex-wrap: wrap; gap: 8px; }
    .tag, .content-badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      min-height: 28px;
      padding: 3px 10px;
      border: 1px solid rgba(244,240,233,.18);
      border-radius: 999px;
      color: var(--paper-300);
      font-size: 12px;
      line-height: 1.4;
    }
    .tag.orange, .content-badge.orange { color: var(--accent-orange-light); border-color: rgba(242,117,69,.48); }
    .tag.lime { color: var(--accent-lime); border-color: rgba(197,232,108,.42); }

    .filter-zone {
      margin-top: -25px;
      position: relative;
      z-index: 2;
    }
    .filter-card {
      padding: 18px;
      border: 1px solid var(--line);
      border-radius: var(--radius-md);
      background: #211e1a;
      box-shadow: var(--shadow-soft);
    }
    .filter-head { display: flex; align-items: center; justify-content: space-between; gap: 16px; margin-bottom: 14px; }
    .filter-head strong { font-size: 15px; }
    .filter-head span { color: var(--text-muted); font-size: 12px; }
    .filter-row { display: flex; align-items: center; gap: 9px; overflow-x: auto; padding-bottom: 2px; scrollbar-width: thin; }
    .filter-pill {
      flex: 0 0 auto;
      padding: 8px 13px;
      border: 1px solid var(--line);
      border-radius: 8px;
      color: var(--text-muted);
      background: transparent;
      font-size: 13px;
      transition: .25s ease;
    }
    .filter-pill:hover, .filter-pill.active { color: var(--ink-950); border-color: var(--accent-orange); background: var(--accent-orange); }
    .filter-select {
      margin-left: auto;
      min-height: 39px;
      padding: 0 31px 0 12px;
      border: 1px solid var(--line);
      border-radius: 8px;
      color: var(--paper-100);
      background: var(--ink-800);
      font-size: 13px;
    }

    .featured-card {
      display: grid;
      grid-template-columns: .95fr 1.05fr;
      min-height: 360px;
      overflow: hidden;
      border: 1px solid rgba(18,17,15,.16);
      border-radius: var(--radius-lg);
      background: #e7dfd3;
      color: var(--ink-950);
      box-shadow: 0 16px 40px rgba(0,0,0,.12);
    }
    .cover-art {
      position: relative;
      min-height: 100%;
      overflow: hidden;
      background: #2b2823;
    }
    .cover-art::before, .cover-art::after { content: ""; position: absolute; border-radius: 50%; }
    .cover-art::before { width: 280px; height: 280px; left: -75px; bottom: -74px; border: 36px solid var(--accent-orange); }
    .cover-art::after { width: 180px; height: 180px; right: -38px; top: 38px; border: 1px solid rgba(197,232,108,.7); }
    .cover-grid {
      position: absolute;
      inset: 0;
      opacity: .72;
      background-image: linear-gradient(rgba(244,240,233,.11) 1px, transparent 1px), linear-gradient(90deg, rgba(244,240,233,.11) 1px, transparent 1px);
      background-size: 31px 31px;
    }
    .cover-label {
      position: absolute;
      top: 24px;
      left: 24px;
      padding: 6px 11px;
      border: 1px solid rgba(244,240,233,.24);
      border-radius: 7px;
      color: var(--paper-100);
      background: rgba(18,17,15,.63);
      font-size: 12px;
      font-weight: 800;
    }
    .cover-index {
      position: absolute;
      right: 22px;
      bottom: 16px;
      color: var(--paper-100);
      font-size: 70px;
      font-weight: 900;
      line-height: 1;
      letter-spacing: -.1em;
    }
    .featured-copy { display: flex; flex-direction: column; justify-content: center; padding: clamp(28px, 4vw, 53px); }
    .featured-copy h2 { margin: 15px 0 12px; font-size: clamp(28px, 3vw, 42px); line-height: 1.2; letter-spacing: -.05em; font-weight: 900; }
    .featured-copy p { margin: 0; color: #625a51; }
    .featured-meta { display: flex; flex-wrap: wrap; align-items: center; gap: 11px; margin: 21px 0 24px; color: #756b60; font-size: 13px; }
    .featured-copy .btn-secondary { color: var(--ink-950); border-color: rgba(18,17,15,.25); align-self: flex-start; }
    .featured-copy .btn-secondary:hover { color: #0f0f0e; border-color: var(--accent-orange); background: var(--accent-orange); }

    .catalog-layout { display: grid; grid-template-columns: .77fr 1.23fr; gap: 48px; align-items: start; }
    .catalog-intro { position: sticky; top: 104px; }
    .catalog-note {
      margin-top: 29px;
      padding: 22px;
      border-left: 3px solid var(--accent-orange);
      background: var(--ink-900);
      color: var(--text-muted);
      font-size: 14px;
    }
    .catalog-list { border-top: 1px solid var(--line); }
    .content-item {
      display: grid;
      grid-template-columns: 68px 1fr auto;
      gap: 18px;
      align-items: center;
      padding: 25px 0;
      border-bottom: 1px solid var(--line);
      transition: .25s ease;
    }
    .content-item:hover { padding-left: 9px; border-color: rgba(242,117,69,.75); }
    .content-index { color: var(--accent-orange); font-size: 15px; font-weight: 900; }
    .content-item h3 { margin: 5px 0 5px; font-size: 20px; line-height: 1.35; letter-spacing: -.03em; }
    .content-item p { margin: 0; color: var(--text-muted); font-size: 14px; line-height: 1.75; }
    .item-meta { display: flex; flex-wrap: wrap; gap: 9px; color: var(--text-muted); font-size: 12px; }
    .item-arrow {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 43px;
      height: 43px;
      border: 1px solid var(--line);
      border-radius: 50%;
      color: var(--accent-orange-light);
      transition: .25s ease;
    }
    .content-item:hover .item-arrow { color: var(--ink-950); border-color: var(--accent-orange); background: var(--accent-orange); transform: translateX(3px); }

    .guide-band { background: #1a1815; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
    .path-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; border: 1px solid var(--line); background: var(--line); }
    .path-card { min-height: 250px; padding: 30px; background: var(--ink-900); transition: background .25s ease, transform .25s ease; }
    .path-card:hover { background: var(--ink-800); transform: translateY(-4px); }
    .path-no { color: var(--accent-orange); font-size: 13px; font-weight: 900; letter-spacing: .15em; }
    .path-card h3 { margin: 20px 0 9px; font-size: 24px; line-height: 1.25; }
    .path-card p { margin: 0 0 20px; color: var(--text-muted); font-size: 14px; }
    .path-link { color: var(--accent-lime); font-size: 14px; font-weight: 800; }
    .path-link:hover { color: var(--accent-orange-light); }

    .faq-wrap { display: grid; grid-template-columns: .75fr 1.25fr; gap: 58px; align-items: start; }
    .faq-list { border-top: 1px solid rgba(18,17,15,.18); }
    .faq-item { border-bottom: 1px solid rgba(18,17,15,.18); }
    .faq-button {
      width: 100%;
      display: flex;
      justify-content: space-between;
      align-items: center;
      gap: 20px;
      padding: 21px 0;
      border: 0;
      color: var(--ink-950);
      background: transparent;
      text-align: left;
      font-size: 17px;
      font-weight: 800;
    }
    .faq-icon {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      flex: 0 0 auto;
      width: 28px;
      height: 28px;
      border: 1px solid rgba(18,17,15,.25);
      border-radius: 50%;
      color: var(--accent-orange);
      transition: .25s ease;
    }
    .faq-item.open .faq-icon { color: var(--ink-950); background: var(--accent-orange); border-color: var(--accent-orange); transform: rotate(45deg); }
    .faq-answer { display: none; padding: 0 42px 21px 0; color: #655d54; font-size: 15px; }
    .faq-item.open .faq-answer { display: block; }

    .contact-box {
      display: grid;
      grid-template-columns: .88fr 1.12fr;
      gap: 55px;
      padding: clamp(28px, 5vw, 60px);
      border: 1px solid var(--line);
      border-radius: var(--radius-lg);
      background: var(--ink-900);
      box-shadow: var(--shadow-soft);
    }
    .contact-box h2 { margin-top: 15px; }
    .contact-box p { color: var(--text-muted); }
    .contact-points { margin: 24px 0 0; padding: 0; list-style: none; }
    .contact-points li { padding: 10px 0; border-bottom: 1px solid var(--line); color: var(--paper-300); font-size: 14px; }
    .contact-points li::before { content: "●"; color: var(--accent-lime); margin-right: 10px; font-size: 10px; }
    .form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 17px; }
    .field { display: flex; flex-direction: column; gap: 7px; }
    .field.full { grid-column: 1 / -1; }
    .field label { color: var(--paper-300); font-size: 13px; font-weight: 700; }
    .field input, .field select, .field textarea {
      width: 100%;
      border: 1px solid var(--line);
      border-radius: 9px;
      padding: 12px 13px;
      color: var(--text-main);
      background: var(--ink-800);
      transition: border-color .25s ease, box-shadow .25s ease;
    }
    .field input::placeholder, .field textarea::placeholder { color: #81786f; }
    .field input:hover, .field select:hover, .field textarea:hover { border-color: rgba(242,117,69,.55); }
    .field input:focus, .field select:focus, .field textarea:focus { border-color: var(--accent-orange); box-shadow: 0 0 0 4px rgba(242,117,69,.12); outline: none; }
    .field textarea { min-height: 112px; resize: vertical; }
    .form-help { margin: 13px 0 0; color: var(--text-muted); font-size: 12px; }
    .form-status { display: none; margin-top: 13px; padding: 10px 13px; border-radius: 8px; color: var(--accent-lime); background: rgba(197,232,108,.08); font-size: 13px; }

    .footer { padding: 72px 0 24px; background: #0e0d0b; border-top: 1px solid var(--line); }
    .footer-grid { display: grid; grid-template-columns: 1.35fr .8fr .9fr; gap: 52px; }
    .footer p { margin: 0; color: var(--text-muted); font-size: 14px; }
    .footer h3 { margin: 0 0 13px; color: var(--paper-100); font-size: 14px; }
    .footer-grid > div:not(:first-child) { display: flex; flex-direction: column; align-items: flex-start; gap: 8px; }
    .footer-grid a:not(.brand) { color: var(--text-muted); font-size: 14px; transition: color .2s ease; }
    .footer-grid a:not(.brand):hover { color: var(--accent-orange-light); }
    .footer-bottom { display: flex; justify-content: space-between; align-items: center; gap: 18px; margin-top: 53px; padding-top: 22px; border-top: 1px solid var(--line); color: var(--text-muted); font-size: 13px; }
    .back-top { color: var(--accent-lime); font-weight: 800; }
    .back-top:hover { color: var(--accent-orange-light); }

    @media (max-width: 1024px) {
      .hero-panel, .catalog-layout, .faq-wrap, .contact-box { grid-template-columns: 1fr; }
      .hero-status { min-height: 220px; }
      .catalog-intro { position: static; }
      .path-grid { grid-template-columns: 1fr; }
      .footer-grid { grid-template-columns: 1fr 1fr; }
    }
    @media (max-width: 768px) {
      .site-container { width: min(100% - 28px, 1180px); }
      .section { padding: 70px 0; }
      .nav-shell { min-height: 68px; }
      .mobile-toggle { display: inline-flex; }
      .nav-links {
        display: none;
        position: absolute;
        top: 68px;
        right: 14px;
        left: 14px;
        flex-direction: column;
        align-items: stretch;
        gap: 2px;
        padding: 12px;
        border: 1px solid var(--line);
        border-radius: 14px;
        background: var(--ink-900);
        box-shadow: var(--shadow-soft);
      }
      .nav-links.open { display: flex; }
      .nav-link { min-height: 48px; padding: 0 12px; }
      .nav-link::after { left: 12px; right: auto; bottom: 6px; width: 28px; }
      .nav-cta { margin: 8px 0 0; }
      .category-hero { padding-top: 22px; }
      .hero-panel { padding: 28px; }
      .featured-card { grid-template-columns: 1fr; }
      .cover-art { min-height: 230px; }
      .content-item { grid-template-columns: 43px 1fr; }
      .item-arrow { display: none; }
      .form-grid { grid-template-columns: 1fr; }
      .field.full { grid-column: auto; }
    }
    @media (max-width: 520px) {
      .brand { font-size: 15px; }
      .hero-content h1 { font-size: 39px; }
      .hero-actions .btn { width: 100%; }
      .filter-head { align-items: flex-start; flex-direction: column; }
      .filter-select { margin-left: 0; }
      .content-item { gap: 11px; padding: 21px 0; }
      .content-item h3 { font-size: 18px; }
      .featured-copy { padding: 27px 23px; }
      .footer-grid { grid-template-columns: 1fr; gap: 31px; }
      .footer-bottom { align-items: flex-start; flex-direction: column; margin-top: 35px; }
    }