/* roulang page: index */
:root {
            --ink: #17131d;
            --ink-soft: #211a29;
            --plum: #35243e;
            --plum-light: #5d3b5f;
            --coral: #ef987d;
            --apricot: #f4c6a4;
            --cream: #f7f1ea;
            --mist: #ebe3e3;
            --paper: #fffdfa;
            --text: #2b2530;
            --muted: #746b76;
            --line: rgba(55, 37, 61, .14);
            --shadow: 0 18px 45px rgba(37, 24, 40, .10);
            --radius: 18px;
            --container: 1240px;
        }

        *, *::before, *::after { box-sizing: border-box; }
        html { scroll-behavior: smooth; }
        body {
            margin: 0;
            color: var(--text);
            background: var(--cream);
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
        }
        a { color: inherit; text-decoration: none; }
        button, input, textarea, select { font: inherit; }
        button { cursor: pointer; }
        img { display: block; max-width: 100%; }
        :focus-visible {
            outline: 3px solid var(--coral);
            outline-offset: 3px;
        }
        .container {
            width: min(var(--container), calc(100% - 40px));
            margin-inline: auto;
        }
        .site-header {
            position: sticky;
            top: 0;
            z-index: 50;
            background: rgba(23, 19, 29, .96);
            border-bottom: 1px solid rgba(255,255,255,.10);
            backdrop-filter: blur(14px);
        }
        .nav-shell {
            min-height: 78px;
            display: grid;
            grid-template-columns: 1fr auto 1fr;
            align-items: center;
            gap: 22px;
        }
        .nav-group {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .nav-group.right { justify-content: flex-end; }
        .nav-link {
            position: relative;
            color: #c9becd;
            padding: 10px 13px;
            border-radius: 10px;
            font-size: 14px;
            transition: .25s ease;
        }
        .nav-link:hover, .nav-link.active {
            color: var(--apricot);
            background: rgba(239,152,125,.10);
        }
        .nav-link.active::after {
            content: "";
            position: absolute;
            left: 13px;
            right: 13px;
            bottom: 3px;
            height: 2px;
            border-radius: 2px;
            background: var(--coral);
        }
        .brand {
            color: #fffaf5;
            text-align: center;
            line-height: 1.15;
            font-weight: 800;
            letter-spacing: -.04em;
            font-size: 19px;
            white-space: nowrap;
        }
        .brand small {
            display: block;
            color: var(--coral);
            font-size: 9px;
            letter-spacing: .2em;
            margin-bottom: 5px;
            font-weight: 700;
        }
        .menu-button {
            display: none;
            color: #fff;
            border: 1px solid rgba(255,255,255,.18);
            background: transparent;
            border-radius: 10px;
            min-width: 44px;
            min-height: 44px;
        }
        .mobile-nav { display: none; }

        .hero {
            position: relative;
            overflow: hidden;
            color: #fff;
            background:
                radial-gradient(circle at 77% 24%, rgba(239,152,125,.20), transparent 25%),
                radial-gradient(circle at 15% 80%, rgba(113,65,115,.35), transparent 31%),
                var(--ink);
            padding: 86px 0 34px;
        }
        .hero::before {
            content: "";
            position: absolute;
            inset: 0;
            opacity: .18;
            background-image: radial-gradient(rgba(255,255,255,.5) .7px, transparent .7px);
            background-size: 9px 9px;
            pointer-events: none;
        }
        .hero-grid {
            position: relative;
            display: grid;
            grid-template-columns: 1.05fr .95fr;
            gap: 70px;
            align-items: center;
        }
        .eyebrow, .section-kicker {
            color: var(--coral);
            font-size: 12px;
            font-weight: 800;
            letter-spacing: .16em;
            text-transform: uppercase;
        }
        h1, h2, h3, p { margin-top: 0; }
        h1 {
            margin: 17px 0 22px;
            max-width: 720px;
            font-size: clamp(40px, 5.2vw, 72px);
            line-height: 1.12;
            letter-spacing: -.065em;
        }
        .hero-copy {
            max-width: 650px;
            color: #d5cbd7;
            font-size: 17px;
            line-height: 1.9;
        }
        .button-row { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 30px; }
        .btn {
            display: inline-flex;
            justify-content: center;
            align-items: center;
            min-height: 48px;
            padding: 0 21px;
            border-radius: 11px;
            border: 1px solid transparent;
            font-weight: 750;
            transition: transform .22s ease, background .22s ease, border-color .22s ease;
        }
        .btn:hover { transform: translateY(-2px); }
        .btn-primary { color: var(--ink); background: var(--coral); }
        .btn-primary:hover { background: var(--apricot); }
        .btn-secondary { color: #fff; border-color: rgba(255,255,255,.24); background: rgba(255,255,255,.04); }
        .btn-secondary:hover { border-color: var(--coral); background: rgba(239,152,125,.12); }
        .hero-visual {
            min-height: 390px;
            position: relative;
            display: grid;
            grid-template-columns: 1.15fr .85fr;
            gap: 12px;
            transform: rotate(1deg);
        }
        .cover {
            position: relative;
            overflow: hidden;
            min-height: 180px;
            border: 1px solid rgba(255,255,255,.15);
            border-radius: 15px;
            background: var(--plum);
        }
        .cover::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(140deg, transparent 24%, rgba(239,152,125,.55) 25%, rgba(239,152,125,.06) 56%, transparent 57%);
        }
        .cover::after {
            content: "";
            position: absolute;
            width: 170px;
            height: 170px;
            right: -45px;
            bottom: -45px;
            border-radius: 50%;
            background: rgba(244,198,164,.22);
            filter: blur(4px);
        }
        .cover-tall { grid-row: span 2; min-height: 390px; background: #452d49; }
        .cover-light { background: #74606c; }
        .cover-dark { background: #251c31; }
        .cover-label {
            position: absolute;
            z-index: 2;
            left: 17px;
            bottom: 15px;
            color: #fff;
            font-size: 13px;
            font-weight: 700;
        }
        .hero-index {
            position: absolute;
            right: -20px;
            bottom: 19px;
            width: 210px;
            padding: 16px;
            color: var(--text);
            background: rgba(255,253,250,.94);
            border-radius: 14px;
            box-shadow: 0 20px 45px rgba(0,0,0,.23);
            transform: rotate(-2deg);
        }
        .hero-index strong { display: block; font-size: 14px; }
        .hero-index span { display: block; color: var(--muted); font-size: 12px; margin-top: 5px; }
        .quick-strip {
            position: relative;
            display: flex;
            gap: 10px;
            overflow-x: auto;
            padding-top: 55px;
            scrollbar-width: none;
        }
        .quick-strip::-webkit-scrollbar { display: none; }
        .pill {
            display: inline-flex;
            align-items: center;
            white-space: nowrap;
            color: var(--muted);
            border: 1px solid var(--line);
            background: rgba(255,255,255,.55);
            padding: 6px 11px;
            border-radius: 999px;
            font-size: 12px;
        }
        .hero .pill { color: #d9cbd7; border-color: rgba(255,255,255,.17); background: rgba(255,255,255,.06); }

        main { overflow: hidden; }
        .section { padding: 100px 0; }
        .section-head {
            display: flex;
            justify-content: space-between;
            align-items: end;
            gap: 30px;
            margin-bottom: 35px;
        }
        .section-head h2 {
            margin: 9px 0 0;
            color: var(--ink);
            font-size: clamp(28px, 3.5vw, 45px);
            letter-spacing: -.05em;
            line-height: 1.25;
        }
        .section-head p { max-width: 510px; color: var(--muted); margin-bottom: 0; }
        .comparison-wrap {
            overflow-x: auto;
            border: 1px solid var(--line);
            border-radius: var(--radius);
            background: var(--paper);
            box-shadow: var(--shadow);
        }
        .comparison {
            width: 100%;
            min-width: 700px;
            border-collapse: collapse;
        }
        .comparison th, .comparison td {
            padding: 19px 22px;
            text-align: left;
            border-bottom: 1px solid var(--line);
        }
        .comparison th { color: var(--ink); background: #f1e7e5; font-size: 14px; }
        .comparison td { color: var(--muted); font-size: 14px; }
        .comparison tr:last-child td { border-bottom: 0; }
        .comparison td:first-child { color: var(--text); font-weight: 750; }
        .check { color: #a75853; font-weight: 800; }
        .recommend-grid {
            display: grid;
            grid-template-columns: 1.2fr .8fr .8fr;
            gap: 16px;
        }
        .feature-card, .topic-card, .step-card, .contact-card {
            border: 1px solid var(--line);
            border-radius: var(--radius);
            background: var(--paper);
            box-shadow: 0 10px 30px rgba(46,31,48,.06);
        }
        .feature-card {
            min-height: 330px;
            padding: 28px;
            color: #fff;
            background: linear-gradient(145deg, #38253f, #201a28);
            border-color: rgba(255,255,255,.10);
        }
        .feature-card h3 { color: #fff; font-size: 29px; line-height: 1.25; margin: 47px 0 13px; letter-spacing: -.04em; }
        .feature-card p { color: #cfc2d1; font-size: 14px; }
        .topic-card { padding: 24px; min-height: 220px; transition: .25s ease; }
        .topic-card:hover, .step-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
        .topic-card h3 { font-size: 21px; color: var(--ink); line-height: 1.35; margin: 42px 0 9px; }
        .topic-card p { color: var(--muted); font-size: 13px; }
        .topic-card .arrow { color: #a75853; font-size: 22px; }
        .info-section { background: #eee5e3; }
        .info-layout { display: grid; grid-template-columns: 1fr .8fr; gap: 24px; }
        .info-list { border-top: 1px solid var(--line); }
        .info-item {
            display: flex;
            justify-content: space-between;
            gap: 20px;
            padding: 20px 0;
            border-bottom: 1px solid var(--line);
        }
        .info-item h3 { margin: 0 0 5px; font-size: 17px; color: var(--ink); }
        .info-item p { margin: 0; color: var(--muted); font-size: 13px; }
        .info-date { color: #a75853; font-size: 12px; white-space: nowrap; }
        .feature-note { padding: 28px; border-radius: var(--radius); background: var(--plum); color: #fff; }
        .feature-note h3 { font-size: 26px; line-height: 1.3; margin: 30px 0 12px; }
        .feature-note p { color: #d4c8d6; font-size: 14px; }
        .steps {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 12px;
        }
        .step-card { padding: 24px; min-height: 185px; transition: .25s ease; }
        .step-number {
            width: 35px; height: 35px; display: grid; place-items: center;
            color: var(--ink); background: var(--coral); border-radius: 10px; font-weight: 800;
        }
        .step-card h3 { margin: 26px 0 7px; font-size: 17px; color: var(--ink); }
        .step-card p { margin: 0; color: var(--muted); font-size: 13px; }
        .trust-band { background: var(--ink); color: #fff; }
        .trust-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 50px; align-items: center; }
        .trust-band h2 { font-size: clamp(28px, 4vw, 46px); line-height: 1.25; letter-spacing: -.05em; margin: 10px 0 17px; }
        .trust-band p { color: #cfc5d0; }
        .trust-points { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
        .trust-point { padding: 18px; border: 1px solid rgba(255,255,255,.13); border-radius: 14px; background: rgba(255,255,255,.04); }
        .trust-point strong { display: block; color: var(--apricot); font-size: 24px; }
        .trust-point span { color: #cfc5d0; font-size: 13px; }
        .faq-layout { display: grid; grid-template-columns: .7fr 1.3fr; gap: 70px; }
        .faq-layout h2 { color: var(--ink); font-size: 40px; line-height: 1.25; letter-spacing: -.05em; }
        .faq-item { border-bottom: 1px solid var(--line); }
        .faq-question {
            width: 100%; min-height: 62px; display: flex; justify-content: space-between; align-items: center;
            border: 0; background: transparent; color: var(--ink); text-align: left; font-weight: 750; padding: 13px 0;
        }
        .faq-question span:last-child { color: #a75853; font-size: 23px; transition: transform .25s ease; }
        .faq-answer { max-height: 0; overflow: hidden; transition: max-height .35s ease, padding .35s ease; color: var(--muted); font-size: 14px; }
        .faq-item.open .faq-answer { max-height: 180px; padding: 0 35px 18px 0; }
        .faq-item.open .faq-question span:last-child { transform: rotate(45deg); }
        .contact-section { padding-top: 20px; padding-bottom: 100px; }
        .contact-card { display: grid; grid-template-columns: .8fr 1.2fr; overflow: hidden; }
        .contact-intro { padding: 42px; color: #fff; background: var(--plum); }
        .contact-intro h2 { font-size: 34px; line-height: 1.3; margin: 12px 0; letter-spacing: -.05em; }
        .contact-intro p { color: #d7cbd7; font-size: 14px; }
        .contact-form { padding: 42px; background: var(--paper); }
        .form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
        .field { display: flex; flex-direction: column; gap: 7px; }
        .field.full { grid-column: 1 / -1; }
        .field label { color: var(--ink); font-size: 13px; font-weight: 750; }
        .field input, .field textarea, .field select {
            width: 100%; border: 1px solid var(--line); border-radius: 10px; background: #fff;
            color: var(--text); padding: 12px 13px; min-height: 46px;
        }
        .field textarea { min-height: 115px; resize: vertical; }
        .field input:focus, .field textarea:focus, .field select:focus { border-color: var(--plum-light); outline: 3px solid rgba(93,59,95,.14); }
        .form-note { margin: 14px 0 0; color: var(--muted); font-size: 12px; }
        .site-footer { color: #cfc5d0; background: #110e16; padding: 52px 0 24px; }
        .footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 45px; padding-bottom: 40px; }
        .footer-brand { color: #fff; font-size: 20px; font-weight: 800; line-height: 1.3; }
        .footer-brand small { display: block; color: var(--coral); font-size: 10px; letter-spacing: .15em; margin-bottom: 8px; }
        .footer-copy { max-width: 370px; font-size: 13px; color: #9c91a1; margin-top: 15px; }
        .footer-title { color: #fff; font-size: 13px; font-weight: 800; margin-bottom: 13px; }
        .footer-link { display: block; color: #a99eab; font-size: 13px; padding: 4px 0; transition: color .2s ease; }
        .footer-link:hover { color: var(--coral); }
        .footer-bottom { display: flex; justify-content: space-between; gap: 20px; padding-top: 20px; border-top: 1px solid rgba(255,255,255,.10); color: #817783; font-size: 12px; }
        @media (max-width: 900px) {
            .hero-grid, .info-layout, .trust-grid, .faq-layout, .contact-card { grid-template-columns: 1fr; }
            .hero-grid { gap: 45px; }
            .recommend-grid { grid-template-columns: 1fr 1fr; }
            .feature-card { grid-row: auto; grid-column: 1 / -1; min-height: 260px; }
            .steps { grid-template-columns: 1fr 1fr; }
            .faq-layout { gap: 20px; }
        }
        @media (max-width: 768px) {
            .container { width: min(100% - 28px, var(--container)); }
            .nav-shell { display: flex; justify-content: space-between; min-height: 68px; }
            .nav-group { display: none; }
            .brand { font-size: 16px; text-align: left; }
            .brand small { margin-bottom: 2px; }
            .menu-button { display: block; }
            .mobile-nav { padding: 8px 0 18px; border-top: 1px solid rgba(255,255,255,.08); }
            .mobile-nav.show { display: block; }
            .mobile-nav a { display: block; color: #d4c9d6; padding: 11px 4px; border-bottom: 1px solid rgba(255,255,255,.08); }
            .hero { padding-top: 58px; }
            .hero-visual { min-height: 300px; }
            .cover-tall { min-height: 300px; }
            .section { padding: 70px 0; }
            .section-head { display: block; }
            .section-head p { margin-top: 15px; }
            .footer-grid { grid-template-columns: 1fr 1fr; }
            .contact-intro, .contact-form { padding: 28px; }
        }
        @media (max-width: 520px) {
            h1 { font-size: 42px; }
            .hero-copy { font-size: 15px; }
            .button-row { display: grid; grid-template-columns: 1fr; }
            .button-row .btn { width: 100%; }
            .hero-index { right: 4px; bottom: 8px; width: 175px; }
            .recommend-grid, .steps, .trust-points, .form-grid, .footer-grid { grid-template-columns: 1fr; }
            .feature-card { grid-column: auto; }
            .info-item { display: block; }
            .info-date { display: block; margin-top: 6px; }
            .footer-bottom { display: block; }
            .footer-bottom span { display: block; margin-top: 8px; }
        }

/* roulang page: category2 */
:root {
      --ink:#17131d; --ink-soft:#211a29; --plum:#35243e; --plum-light:#5d3b5f;
      --coral:#ef987d; --apricot:#f4c6a4; --cream:#f7f1ea; --mist:#ebe3e3;
      --paper:#fffdfa; --text:#2b2530; --muted:#746b76; --line:rgba(55,37,61,.14);
      --shadow:0 18px 45px rgba(37,24,40,.10); --radius:18px; --container:1240px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;color:var(--text);background:var(--cream);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;line-height:1.75;-webkit-font-smoothing:antialiased}
    a{color:inherit;text-decoration:none}
    button,input,textarea,select{font:inherit}
    button{cursor:pointer}
    img{display:block;max-width:100%}
    .container{width:min(var(--container),calc(100% - 40px));margin-inline:auto}
    .site-header{position:sticky;top:0;z-index:50;background:rgba(23,19,29,.96);border-bottom:1px solid rgba(255,255,255,.1);backdrop-filter:blur(14px)}
    .nav-shell{min-height:78px;display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:22px}
    .nav-group{display:flex;align-items:center;gap:8px}
    .nav-group.right{justify-content:flex-end}
    .nav-link{position:relative;color:#c9becd;padding:10px 13px;border-radius:10px;font-size:14px;transition:.25s ease}
    .nav-link:hover,.nav-link.active{color:var(--apricot);background:rgba(239,152,125,.1)}
    .nav-link.active::after{content:"";position:absolute;left:13px;right:13px;bottom:3px;height:2px;border-radius:2px;background:var(--coral)}
    .brand{color:#fffaf5;text-align:center;line-height:1.15;font-weight:800;letter-spacing:-.04em;font-size:19px;white-space:nowrap}
    .brand small{display:block;color:var(--coral);font-size:9px;letter-spacing:.2em;margin-bottom:5px;font-weight:700}
    .menu-button{display:none;color:#fff;border:1px solid rgba(255,255,255,.18);background:transparent;border-radius:10px;min-width:44px;min-height:44px}
    .mobile-nav{display:none}
    .hero{position:relative;overflow:hidden;color:#fff;background:radial-gradient(circle at 83% 18%,rgba(239,152,125,.2),transparent 24%),radial-gradient(circle at 12% 85%,rgba(113,65,115,.4),transparent 32%),var(--ink);padding:72px 0 44px}
    .hero:before{content:"";position:absolute;inset:0;opacity:.16;background-image:radial-gradient(rgba(255,255,255,.5) .7px,transparent .7px);background-size:9px 9px;pointer-events:none}
    .hero-grid{position:relative;display:grid;grid-template-columns:1fr .86fr;gap:64px;align-items:center}
    .eyebrow,.section-kicker{color:var(--coral);font-size:12px;font-weight:800;letter-spacing:.16em;text-transform:uppercase}
    h1,h2,h3,p{margin-top:0}
    h1{font-size:clamp(34px,5vw,64px);line-height:1.12;letter-spacing:-.055em;margin:14px 0 22px}
    h2{font-size:clamp(26px,3.4vw,42px);line-height:1.2;letter-spacing:-.04em;margin:10px 0 14px}
    h3{font-size:19px;line-height:1.4;margin:0 0 8px}
    .hero-copy{max-width:650px;color:#d5cbd7;font-size:17px;line-height:1.9}
    .button-row{display:flex;gap:12px;flex-wrap:wrap;margin-top:28px}
    .btn{display:inline-flex;justify-content:center;align-items:center;min-height:48px;padding:0 21px;border-radius:11px;border:1px solid transparent;font-weight:750;transition:transform .22s ease,background .22s ease,border-color .22s ease}
    .btn:hover{transform:translateY(-2px)}
    .btn:focus-visible,.nav-link:focus-visible,.menu-button:focus-visible,summary:focus-visible,input:focus-visible,textarea:focus-visible{outline:3px solid var(--coral);outline-offset:3px}
    .btn-primary{color:var(--ink);background:var(--coral)}
    .btn-primary:hover{background:var(--apricot)}
    .btn-secondary{color:#fff;border-color:rgba(255,255,255,.24);background:rgba(255,255,255,.04)}
    .btn-secondary:hover{border-color:var(--coral);background:rgba(239,152,125,.12)}
    .hero-panel{padding:24px;border:1px solid rgba(255,255,255,.14);border-radius:22px;background:rgba(255,255,255,.07);box-shadow:0 25px 55px rgba(0,0,0,.25)}
    .panel-top{display:flex;justify-content:space-between;gap:14px;align-items:center;margin-bottom:20px;color:#dacbd7;font-size:13px}
    .cover-wall{display:grid;grid-template-columns:1.2fr .8fr;grid-template-rows:120px 150px;gap:10px}
    .cover{position:relative;overflow:hidden;border-radius:14px;min-height:100px;background:linear-gradient(135deg,#70455e,#30243e 55%,#e8997d)}
    .cover:after{content:"";position:absolute;inset:0;background:linear-gradient(145deg,transparent 35%,rgba(15,10,18,.7))}
    .cover span{position:absolute;z-index:1;left:13px;bottom:11px;color:#fff;font-size:12px}
    .cover.tall{grid-row:span 2;background:linear-gradient(145deg,#44354e,#a66b71 52%,#201923)}
    .index-note{margin-top:14px;padding:14px 15px;border-left:3px solid var(--coral);background:rgba(255,255,255,.06);color:#d8cedb;font-size:13px}
    .section{padding:88px 0}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:30px;margin-bottom:32px}
    .section-head p{max-width:560px;color:var(--muted);margin-bottom:0}
    .layout{display:grid;grid-template-columns:260px 1fr;gap:32px;align-items:start}
    .side-card,.content-card,.faq-box,.notice{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}
    .side-card{padding:22px;position:sticky;top:102px}
    .side-title{font-weight:800;margin-bottom:14px}
    .side-list{display:grid;gap:7px;margin-bottom:22px}
    .side-list a{padding:10px 12px;border-radius:10px;color:var(--muted);font-size:14px}
    .side-list a:hover,.side-list a.active{background:#f3e5e2;color:var(--plum);font-weight:700}
    .tag-list{display:flex;flex-wrap:wrap;gap:8px}
    .pill{display:inline-flex;align-items:center;white-space:nowrap;color:var(--muted);border:1px solid var(--line);background:rgba(255,255,255,.55);padding:6px 11px;border-radius:999px;font-size:12px}
    .pill.active{color:var(--plum);border-color:var(--coral);background:#fbe5dc}
    .notice{padding:16px;margin-top:20px;color:var(--muted);font-size:13px;line-height:1.7}
    .notice strong{display:block;color:var(--text);margin-bottom:5px}
    .feature-card{display:grid;grid-template-columns:1.02fr 1fr;overflow:hidden;background:var(--plum);color:#fff;border-radius:20px;box-shadow:var(--shadow);margin-bottom:20px}
    .feature-visual{min-height:290px;background:linear-gradient(135deg,#3d2949,#9e626b 54%,#e9a181);position:relative}
    .feature-visual:before{content:"抽象封面 · 安全遮罩";position:absolute;left:20px;bottom:18px;padding:6px 10px;color:#fff;background:rgba(20,14,25,.55);border-radius:8px;font-size:12px}
    .feature-body{padding:30px}
    .feature-body p{color:#d9cbd7;font-size:14px}
    .feature-body .pill{color:#f4d3c5;border-color:rgba(255,255,255,.18);background:rgba(255,255,255,.07)}
    .media-list{display:grid;gap:12px}
    .media-item{display:grid;grid-template-columns:156px 1fr auto;gap:18px;align-items:center;padding:14px;background:var(--paper);border:1px solid var(--line);border-radius:15px;transition:.25s ease}
    .media-item:hover{transform:translateX(4px);border-color:rgba(93,59,95,.35);box-shadow:0 12px 26px rgba(37,24,40,.08)}
    .thumb{aspect-ratio:16/9;border-radius:10px;background:linear-gradient(130deg,#5c3b60,#d18778);position:relative;overflow:hidden}
    .thumb:after{content:"";position:absolute;inset:0;background:linear-gradient(135deg,rgba(255,255,255,.15),transparent 45%,rgba(15,10,18,.42))}
    .media-meta{color:var(--muted);font-size:12px}
    .media-item p{color:var(--muted);font-size:13px;margin:4px 0 0;line-height:1.65}
    .arrow{color:var(--plum);font-size:20px}
    .info-band{background:var(--mist);border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:28px 0}
    .info-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line)}
    .info-cell{background:var(--mist);padding:12px 24px}
    .info-cell strong{display:block;color:var(--plum);font-size:22px;line-height:1.2}
    .info-cell span{color:var(--muted);font-size:13px}
    .topic-grid{display:grid;grid-template-columns:1.3fr .7fr .7fr;grid-template-rows:180px 180px;gap:14px}
    .topic{position:relative;overflow:hidden;border-radius:17px;padding:22px;color:#fff;background:linear-gradient(135deg,#3d2949,#9f626c)}
    .topic:first-child{grid-row:span 2;background:linear-gradient(145deg,#2a2033,#6d415d 56%,#db8f78)}
    .topic:nth-child(2){background:linear-gradient(145deg,#4a3550,#b17474)}
    .topic:nth-child(3){background:linear-gradient(145deg,#35243e,#755b78)}
    .topic:after{content:"";position:absolute;inset:0;background:linear-gradient(transparent 35%,rgba(15,10,18,.72))}
    .topic-content{position:absolute;z-index:1;left:22px;right:22px;bottom:18px}
    .topic-content p{font-size:13px;color:#eadde3;margin:5px 0 0}
    .path{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .path-step{padding:23px;background:#f1e8e4;border:1px solid var(--line);border-radius:16px;position:relative}
    .step-no{color:var(--coral);font-weight:900;font-size:13px;letter-spacing:.1em}
    .path-step p{color:var(--muted);font-size:14px;margin-bottom:14px}
    .faq-wrap{max-width:850px}
    details{border-bottom:1px solid var(--line);padding:3px 0}
    summary{list-style:none;cursor:pointer;padding:19px 4px;font-weight:750;display:flex;justify-content:space-between;gap:15px}
    summary::-webkit-details-marker{display:none}
    summary:after{content:"＋";color:var(--coral);font-size:20px;line-height:1}
    details[open] summary:after{content:"－"}
    details p{color:var(--muted);font-size:14px;padding:0 30px 18px 4px;margin:0}
    .cta{background:var(--ink-soft);color:#fff;padding:58px 0}
    .cta-grid{display:flex;justify-content:space-between;align-items:center;gap:30px}
    .cta p{color:#cfc2d1;max-width:650px;margin-bottom:0}
    .site-footer{color:#c9becd;background:var(--ink);padding:58px 0 22px}
    .footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:50px}
    .footer-brand{display:block;color:#fffaf5;font-size:20px;font-weight:800;line-height:1.2}
    .footer-brand small{display:block;color:var(--coral);font-size:10px;letter-spacing:.18em;margin-bottom:7px}
    .footer-copy{max-width:350px;color:#928694;font-size:13px;margin-top:18px}
    .footer-title{color:#fffaf5;font-size:14px;font-weight:800;margin-bottom:14px}
    .footer-link{display:block;color:#a99cab;font-size:13px;margin:8px 0}
    a.footer-link:hover{color:var(--apricot)}
    .footer-bottom{display:flex;justify-content:space-between;gap:18px;border-top:1px solid rgba(255,255,255,.1);margin-top:40px;padding-top:18px;color:#827683;font-size:12px}
    @media(max-width:900px){.hero-grid{grid-template-columns:1fr;gap:38px}.layout{grid-template-columns:1fr}.side-card{position:static}.info-grid{grid-template-columns:repeat(2,1fr)}.feature-card{grid-template-columns:1fr}.feature-visual{min-height:210px}}
    @media(max-width:768px){.container{width:min(var(--container),calc(100% - 28px))}.nav-shell{min-height:68px;grid-template-columns:auto 1fr auto}.nav-shell>.nav-group{display:none}.brand{font-size:16px}.menu-button{display:block;justify-self:end}.mobile-nav{padding:0 14px 16px}.mobile-nav.open{display:grid;gap:5px}.mobile-nav .nav-link{display:block}.hero{padding:56px 0 34px}.section{padding:64px 0}.section-head{display:block}.section-head p{margin-top:12px}.topic-grid{grid-template-columns:1fr 1fr;grid-template-rows:190px 150px}.topic:first-child{grid-column:span 2;grid-row:auto}.path{grid-template-columns:1fr}.cta-grid{display:block}.cta-grid .button-row{margin-top:22px}.footer-grid{grid-template-columns:1fr 1fr;gap:30px}.footer-grid>div:first-child{grid-column:span 2}}
    @media(max-width:520px){h1{font-size:36px}.hero-copy{font-size:15px}.button-row{display:grid;grid-template-columns:1fr}.btn{width:100%}.cover-wall{grid-template-rows:100px 130px}.media-item{grid-template-columns:92px 1fr;gap:12px}.media-item .arrow{display:none}.media-item p{font-size:12px}.info-grid{grid-template-columns:1fr 1fr}.info-cell{padding:12px}.info-cell strong{font-size:18px}.topic-grid{display:block}.topic{min-height:170px;margin-bottom:12px}.footer-grid{display:block}.footer-grid>div{margin-bottom:26px}.footer-bottom{display:block}.footer-bottom span{display:block;margin-top:8px}}

/* roulang page: category1 */
:root{
      --ink:#17131d;--ink-soft:#211a29;--plum:#35243e;--plum-light:#5d3b5f;
      --coral:#ef987d;--apricot:#f4c6a4;--cream:#f7f1ea;--mist:#ebe3e3;
      --paper:#fffdfa;--text:#2b2530;--muted:#746b76;--line:rgba(55,37,61,.14);
      --shadow:0 18px 45px rgba(37,24,40,.10);--radius:18px;--container:1240px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;color:var(--text);background:var(--cream);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;line-height:1.75;-webkit-font-smoothing:antialiased}
    a{color:inherit;text-decoration:none}
    button,input,textarea,select{font:inherit}
    button{cursor:pointer}
    img{display:block;max-width:100%}
    :focus-visible{outline:3px solid var(--coral);outline-offset:3px}
    .container{width:min(var(--container),calc(100% - 40px));margin-inline:auto}
    .site-header{position:sticky;top:0;z-index:50;background:rgba(23,19,29,.96);border-bottom:1px solid rgba(255,255,255,.1);backdrop-filter:blur(14px)}
    .nav-shell{min-height:78px;display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:22px}
    .nav-group{display:flex;align-items:center;gap:8px}
    .nav-group.right{justify-content:flex-end}
    .nav-link{position:relative;color:#c9becd;padding:10px 13px;border-radius:10px;font-size:14px;transition:.25s ease}
    .nav-link:hover,.nav-link.active{color:var(--apricot);background:rgba(239,152,125,.1)}
    .nav-link.active:after{content:"";position:absolute;left:13px;right:13px;bottom:3px;height:2px;border-radius:2px;background:var(--coral)}
    .brand{color:#fffaf5;text-align:center;line-height:1.15;font-weight:800;letter-spacing:-.04em;font-size:19px;white-space:nowrap}
    .brand small{display:block;color:var(--coral);font-size:9px;letter-spacing:.2em;margin-bottom:5px;font-weight:700}
    .menu-button{display:none;color:#fff;border:1px solid rgba(255,255,255,.18);background:transparent;border-radius:10px;min-width:44px;min-height:44px}
    .mobile-nav{display:none}
    .page-hero{position:relative;overflow:hidden;color:#fff;background:radial-gradient(circle at 80% 20%,rgba(239,152,125,.2),transparent 28%),radial-gradient(circle at 15% 80%,rgba(93,59,95,.42),transparent 34%),var(--ink);padding:65px 0 72px}
    .page-hero:before{content:"";position:absolute;inset:0;opacity:.15;background-image:radial-gradient(rgba(255,255,255,.5) .7px,transparent .7px);background-size:9px 9px}
    .hero-inner{position:relative}
    .breadcrumb{color:#b8a9bb;font-size:13px;margin-bottom:24px}
    .breadcrumb a:hover{color:var(--apricot)}
    .eyebrow,.section-kicker{color:var(--coral);font-size:12px;font-weight:800;letter-spacing:.16em;text-transform:uppercase}
    h1,h2,h3,p{margin-top:0}
    h1{max-width:760px;font-size:clamp(34px,5vw,64px);line-height:1.12;letter-spacing:-.055em;margin-bottom:22px}
    .hero-summary{max-width:700px;color:#d8ced9;font-size:17px;line-height:1.9;margin-bottom:28px}
    .tag-row{display:flex;flex-wrap:wrap;gap:9px}
    .pill{display:inline-flex;align-items:center;white-space:nowrap;color:var(--muted);border:1px solid var(--line);background:rgba(255,255,255,.55);padding:6px 11px;border-radius:999px;font-size:12px}
    .page-hero .pill{color:#dfd0dc;border-color:rgba(255,255,255,.18);background:rgba(255,255,255,.06)}
    .main-area{padding:76px 0 100px}
    .category-layout{display:grid;grid-template-columns:270px minmax(0,1fr);gap:42px;align-items:start}
    .side-panel{position:sticky;top:105px;background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow)}
    .side-title{font-size:18px;font-weight:800;margin-bottom:17px}
    .side-list{display:grid;gap:7px;margin-bottom:26px}
    .side-list a{display:flex;justify-content:space-between;align-items:center;padding:10px 12px;border-radius:10px;color:var(--muted);font-size:14px;transition:.2s}
    .side-list a:hover,.side-list a.active{color:var(--plum);background:#f3e8e4;font-weight:700}
    .side-list span{font-size:11px;color:#a496a3}
    .notice{border-top:1px solid var(--line);padding-top:20px;color:var(--muted);font-size:13px;line-height:1.7}
    .notice strong{display:block;color:var(--text);font-size:14px;margin-bottom:6px}
    .content-head{display:flex;justify-content:space-between;align-items:end;gap:20px;border-bottom:1px solid var(--line);padding-bottom:22px;margin-bottom:25px}
    .content-head h2{font-size:30px;letter-spacing:-.04em;margin-bottom:7px}
    .content-head p{color:var(--muted);font-size:14px;margin-bottom:0}
    .select-box{border:1px solid var(--line);background:var(--paper);border-radius:10px;color:var(--plum);padding:10px 13px;font-size:13px;min-width:135px}
    .feature-card{display:grid;grid-template-columns:1.08fr .92fr;min-height:300px;background:var(--plum);border-radius:var(--radius);overflow:hidden;color:#fff;box-shadow:var(--shadow);margin-bottom:18px}
    .cover{position:relative;min-height:220px;overflow:hidden;background:linear-gradient(135deg,#754b68,#2d2038 56%,#d88773)}
    .cover:before,.cover:after{content:"";position:absolute;border-radius:50%;filter:blur(1px)}
    .cover:before{width:220px;height:220px;background:rgba(244,198,164,.36);right:8%;top:13%}
    .cover:after{width:180px;height:340px;background:rgba(31,19,37,.6);left:24%;top:-18%;transform:rotate(25deg)}
    .cover-label{position:absolute;z-index:1;left:22px;bottom:18px;color:#fff;background:rgba(23,19,29,.65);padding:7px 11px;border-radius:8px;font-size:12px}
    .feature-copy{padding:30px}
    .feature-copy h3{font-size:25px;line-height:1.3;letter-spacing:-.035em;margin:14px 0 12px}
    .feature-copy p{color:#d7cbd8;font-size:14px;line-height:1.8}
    .text-link{display:inline-flex;color:var(--coral);font-weight:750;font-size:14px;margin-top:10px;transition:.2s}
    .text-link:hover{color:var(--apricot);transform:translateX(3px)}
    .media-list{display:grid;gap:12px}
    .media-item{display:grid;grid-template-columns:185px 1fr auto;gap:20px;align-items:center;background:var(--paper);border:1px solid var(--line);border-radius:14px;padding:13px;transition:.25s;box-shadow:0 7px 22px rgba(37,24,40,.04)}
    .media-item:hover{transform:translateY(-3px);border-color:rgba(93,59,95,.35);box-shadow:var(--shadow)}
    .thumb{height:105px;border-radius:10px;overflow:hidden;position:relative;background:linear-gradient(120deg,#4b3154,#b96f72 65%,#f0b99a)}
    .thumb.two{background:linear-gradient(120deg,#242033,#6c5875 50%,#d99882)}
    .thumb.three{background:linear-gradient(120deg,#6b3f52,#df9d82 55%,#38253e)}
    .thumb:after{content:"";position:absolute;inset:20% 28%;border:1px solid rgba(255,255,255,.4);transform:rotate(18deg);border-radius:40%}
    .media-copy h3{font-size:18px;margin:8px 0 5px;line-height:1.4}
    .media-copy p{font-size:13px;color:var(--muted);margin:0;line-height:1.7}
    .meta{color:#988b99;font-size:12px;white-space:nowrap}
    .soft-section{background:var(--mist);padding:76px 0}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:25px;margin-bottom:27px}
    .section-head h2{font-size:32px;letter-spacing:-.045em;margin:8px 0 0}
    .section-head p{max-width:460px;color:var(--muted);font-size:14px;margin:0}
    .index-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
    .index-card{background:var(--paper);border:1px solid var(--line);border-radius:14px;padding:21px;min-height:135px;transition:.22s}
    .index-card:hover{border-color:var(--coral);transform:translateY(-3px)}
    .index-card strong{display:block;font-size:18px;margin:12px 0 5px}
    .index-card p{color:var(--muted);font-size:13px;line-height:1.65;margin:0}
    .label{display:inline-block;color:var(--plum);background:#f3ddd4;border-radius:6px;padding:4px 8px;font-size:11px;font-weight:750}
    .path-section{padding:86px 0}
    .path-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:28px;align-items:stretch}
    .path-box{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:28px}
    .path-box h2{font-size:29px;line-height:1.3;margin-bottom:22px}
    .steps{display:grid;gap:15px}
    .step{display:grid;grid-template-columns:40px 1fr;gap:15px;align-items:start;padding-bottom:15px;border-bottom:1px solid var(--line)}
    .step:last-child{border-bottom:0;padding-bottom:0}
    .step-num{width:34px;height:34px;border-radius:50%;display:grid;place-items:center;color:var(--ink);background:var(--coral);font-weight:800;font-size:13px}
    .step strong{display:block;margin-bottom:3px}
    .step p{font-size:13px;color:var(--muted);margin:0}
    .side-note{background:var(--ink);color:#fff;padding:30px;border-radius:var(--radius);display:flex;flex-direction:column;justify-content:space-between}
    .side-note h3{font-size:24px;line-height:1.35;margin:12px 0}
    .side-note p{color:#cfc2d1;font-size:14px}
    .btn{display:inline-flex;justify-content:center;align-items:center;min-height:48px;padding:0 21px;border-radius:11px;border:1px solid transparent;font-weight:750;transition:.22s}
    .btn:hover{transform:translateY(-2px)}
    .btn-primary{color:var(--ink);background:var(--coral)}
    .btn-primary:hover{background:var(--apricot)}
    .btn-secondary{color:var(--plum);border-color:var(--line);background:transparent}
    .btn-secondary:hover{border-color:var(--coral);background:#fff1e9}
    .faq-section{background:var(--paper);padding:76px 0}
    .faq-wrap{max-width:850px;margin:auto}
    .faq-item{border-bottom:1px solid var(--line)}
    .faq-question{width:100%;min-height:58px;border:0;background:transparent;text-align:left;padding:16px 4px;color:var(--text);font-weight:750;display:flex;justify-content:space-between;gap:20px}
    .faq-question span:last-child{color:var(--coral);font-size:22px;transition:.25s}
    .faq-question[aria-expanded=true] span:last-child{transform:rotate(45deg)}
    .faq-answer{max-height:0;overflow:hidden;color:var(--muted);font-size:14px;line-height:1.8;transition:max-height .35s ease}
    .faq-answer.open{max-height:180px;padding:0 35px 17px 4px}
    .cta-section{padding:72px 0;background:var(--plum);color:#fff}
    .cta-box{display:flex;justify-content:space-between;align-items:center;gap:30px}
    .cta-box h2{font-size:32px;letter-spacing:-.04em;margin:8px 0}
    .cta-box p{color:#d6cad7;font-size:14px;margin:0}
    .site-footer{background:var(--ink);color:#c9becd;padding:55px 0 25px}
    .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:50px;padding-bottom:40px;border-bottom:1px solid rgba(255,255,255,.12)}
    .footer-brand{display:block;color:#fffaf5;font-weight:800;font-size:21px;line-height:1.25;letter-spacing:-.04em}
    .footer-brand small{display:block;color:var(--coral);font-size:10px;letter-spacing:.16em;margin-bottom:8px}
    .footer-copy{max-width:360px;color:#9e91a3;font-size:13px;line-height:1.8;margin:16px 0 0}
    .footer-title{color:#fff;font-size:14px;font-weight:800;margin-bottom:13px}
    .footer-link{display:block;color:#a99cab;font-size:13px;margin:8px 0;transition:.2s}
    .footer-link:hover{color:var(--apricot)}
    .footer-bottom{display:flex;justify-content:space-between;gap:15px;padding-top:22px;color:#817487;font-size:12px}
    @media(max-width:900px){
      .category-layout{grid-template-columns:220px minmax(0,1fr);gap:24px}
      .feature-card{grid-template-columns:1fr}
      .index-strip{grid-template-columns:repeat(2,1fr)}
      .path-grid{grid-template-columns:1fr}
    }
    @media(max-width:768px){
      .container{width:min(var(--container),calc(100% - 28px))}
      .nav-shell{display:flex;justify-content:space-between;min-height:68px}
      .nav-group{display:none}
      .brand{font-size:16px;text-align:left}
      .brand small{margin-bottom:3px}
      .menu-button{display:block}
      .mobile-nav{padding:8px 14px 18px;background:var(--ink);border-top:1px solid rgba(255,255,255,.1)}
      .mobile-nav.open{display:grid;gap:5px}
      .mobile-nav .nav-link{display:block}
      .page-hero{padding:45px 0 55px}
      .category-layout{display:block}
      .side-panel{position:static;margin-bottom:28px}
      .side-list{display:flex;overflow-x:auto;padding-bottom:5px}
      .side-list a{white-space:nowrap}
      .content-head{align-items:start;flex-direction:column}
      .media-item{grid-template-columns:125px 1fr}
      .media-item .meta{grid-column:2}
      .thumb{height:82px}
      .cta-box{display:block}
      .cta-box .btn{margin-top:22px}
      .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
      .footer-grid>div:first-child{grid-column:1/-1}
      .footer-bottom{display:block}
      .footer-bottom span{display:block;margin-top:7px}
    }
    @media(max-width:520px){
      h1{font-size:36px}
      .main-area,.path-section,.faq-section{padding:58px 0}
      .soft-section{padding:58px 0}
      .index-strip{grid-template-columns:1fr}
      .feature-copy{padding:23px}
      .media-item{grid-template-columns:1fr;gap:12px}
      .media-item .meta{grid-column:auto}
      .thumb{height:150px}
      .footer-grid{grid-template-columns:1fr}
      .footer-grid>div:first-child{grid-column:auto}
      .button-row .btn{flex:1}
    }