/* roulang page: index */
:root {
            --ink: #18332d;
            --ink-deep: #10251f;
            --olive: #667456;
            --gold: #b39152;
            --gold-soft: #e8d8b6;
            --paper: #f7f6f1;
            --mist: #eef0e9;
            --white: #ffffff;
            --muted: #6d7870;
            --line: #dce1d8;
            --radius: 12px;
            --radius-sm: 7px;
            --shadow: 0 14px 40px rgba(24, 51, 45, .09);
            --shadow-hover: 0 20px 48px rgba(24, 51, 45, .15);
            --ease: 220ms ease;
        }
        *, *::before, *::after { box-sizing: border-box; }
        html { scroll-behavior: smooth; }
        body {
            margin: 0;
            color: var(--ink);
            background: var(--paper);
            font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", Arial, sans-serif;
            line-height: 1.75;
            font-size: 16px;
        }
        img { display: block; max-width: 100%; }
        a { color: inherit; text-decoration: none; }
        button, input { font: inherit; }
        button { cursor: pointer; }
        .container { width: min(1160px, calc(100% - 48px)); margin: 0 auto; }
        .site-header {
            position: sticky;
            top: 0;
            z-index: 20;
            background: rgba(247,246,241,.94);
            border-bottom: 1px solid rgba(220,225,216,.85);
            backdrop-filter: blur(14px);
        }
        .nav-wrap { min-height: 76px; display: flex; align-items: center; gap: 42px; }
        .brand { display: inline-flex; align-items: center; gap: 11px; min-width: 220px; }
        .brand-mark {
            width: 38px; height: 38px; display: grid; place-items: center;
            border-radius: 50%; background: var(--ink); color: var(--gold-soft);
            font-weight: 800; font-size: 17px;
        }
        .brand-copy strong { display: block; font-size: 17px; line-height: 1.2; letter-spacing: 0; }
        .brand-copy small { display: block; color: var(--muted); font-size: 10px; margin-top: 3px; }
        .main-nav { display: flex; align-items: center; gap: 30px; margin-left: auto; }
        .main-nav a { color: #55635a; font-size: 14px; position: relative; padding: 25px 0; transition: color var(--ease); }
        .main-nav a::after { content: ""; position: absolute; left: 0; right: 100%; bottom: 17px; height: 2px; background: var(--gold); transition: right var(--ease); }
        .main-nav a:hover, .main-nav a.active { color: var(--ink); }
        .main-nav a:hover::after, .main-nav a.active::after { right: 0; }
        .nav-action, .btn-primary {
            display: inline-flex; align-items: center; justify-content: center; gap: 8px;
            min-height: 44px; padding: 0 20px; border-radius: var(--radius-sm);
            background: var(--ink); color: var(--white); font-size: 14px; font-weight: 700;
            transition: transform var(--ease), background var(--ease), box-shadow var(--ease);
        }
        .nav-action:hover, .btn-primary:hover { background: var(--ink-deep); transform: translateY(-2px); box-shadow: 0 8px 20px rgba(16,37,31,.18); }
        .menu-toggle { display: none; border: 0; background: transparent; color: var(--ink); font-size: 24px; }
        .hero {
            min-height: 625px; display: flex; align-items: center; position: relative;
            color: var(--white); background:
            linear-gradient(90deg, rgba(16,37,31,.92) 0%, rgba(16,37,31,.74) 46%, rgba(16,37,31,.3) 100%),
            url('/assets/images/backpic/back-1.png') center/cover no-repeat;
        }
        .hero-content { width: min(760px, 100%); padding: 92px 0 110px; }
        .eyebrow, .badge {
            display: inline-flex; align-items: center; gap: 7px; color: var(--gold-soft);
            font-size: 12px; font-weight: 700; letter-spacing: 0;
        }
        .eyebrow::before { content: ""; width: 25px; height: 1px; background: var(--gold-soft); }
        h1, h2, h3, p { margin-top: 0; }
        h1 { max-width: 680px; margin: 22px 0 20px; font-size: clamp(42px, 6vw, 72px); line-height: 1.14; letter-spacing: 0; }
        .hero p { max-width: 620px; color: rgba(255,255,255,.82); font-size: 18px; line-height: 1.9; margin-bottom: 34px; }
        .hero-actions { display: flex; gap: 12px; flex-wrap: wrap; }
        .btn-secondary {
            display: inline-flex; align-items: center; justify-content: center; min-height: 44px;
            padding: 0 20px; border: 1px solid rgba(255,255,255,.5); border-radius: var(--radius-sm);
            color: var(--white); font-size: 14px; transition: all var(--ease);
        }
        .btn-secondary:hover { border-color: var(--gold-soft); color: var(--gold-soft); background: rgba(255,255,255,.08); }
        .trust-bar { background: var(--ink); color: var(--white); }
        .trust-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; }
        .trust-item { padding: 22px 26px; border-left: 1px solid rgba(255,255,255,.12); }
        .trust-item strong { display: block; color: var(--gold-soft); font-size: 25px; line-height: 1.2; }
        .trust-item span { display: block; color: rgba(255,255,255,.65); font-size: 13px; margin-top: 3px; }
        .section { padding: 102px 0; }
        .section-head { display: flex; justify-content: space-between; align-items: end; gap: 30px; margin-bottom: 42px; }
        .section-head h2 { font-size: 36px; line-height: 1.3; margin-bottom: 10px; }
        .section-head p { max-width: 530px; color: var(--muted); margin-bottom: 0; }
        .kicker { color: var(--gold); font-size: 12px; font-weight: 800; letter-spacing: 1px; }
        .feature-grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: 24px; align-items: stretch; }
        .feature-story { position: relative; min-height: 420px; overflow: hidden; border-radius: var(--radius); color: var(--white); background: var(--ink); }
        .feature-story img { width: 100%; height: 100%; object-fit: cover; opacity: .6; transition: transform .5s ease; }
        .feature-story:hover img { transform: scale(1.04); }
        .feature-story figcaption { position: absolute; inset: auto 0 0; padding: 34px; background: linear-gradient(transparent, rgba(16,37,31,.96)); }
        .feature-story h3 { font-size: 27px; line-height: 1.35; margin: 12px 0 8px; }
        .feature-story p { color: rgba(255,255,255,.76); margin-bottom: 0; }
        .feature-list { display: grid; gap: 12px; }
        .mini-card, .info-card, .post-card {
            background: var(--white); border: 1px solid var(--line); border-radius: var(--radius);
            box-shadow: 0 5px 18px rgba(24,51,45,.035); transition: transform var(--ease), box-shadow var(--ease), border-color var(--ease);
        }
        .mini-card { padding: 25px; display: flex; gap: 18px; align-items: flex-start; }
        .mini-card:hover, .info-card:hover, .post-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); border-color: #c5cec1; }
        .mini-number { color: var(--gold); font-weight: 800; font-size: 22px; line-height: 1; }
        .mini-card h3 { font-size: 18px; margin: 0 0 7px; }
        .mini-card p { color: var(--muted); font-size: 14px; margin: 0; }
        .soft-section { background: var(--mist); }
        .card-matrix { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
        .info-card { padding: 28px; }
        .info-card .icon { width: 42px; height: 42px; display: grid; place-items: center; background: var(--gold-soft); color: var(--ink); border-radius: 50%; font-weight: 800; margin-bottom: 22px; }
        .info-card h3 { margin-bottom: 10px; font-size: 20px; }
        .info-card p { color: var(--muted); font-size: 14px; margin-bottom: 0; }
        .split-section { display: grid; grid-template-columns: .9fr 1.1fr; gap: 70px; align-items: center; }
        .split-image { min-height: 390px; border-radius: var(--radius); overflow: hidden; }
        .split-image img { width: 100%; height: 100%; object-fit: cover; }
        .split-copy h2 { font-size: 36px; line-height: 1.35; margin: 14px 0 18px; }
        .split-copy > p { color: var(--muted); }
        .check-list { list-style: none; padding: 0; margin: 26px 0 0; display: grid; gap: 15px; }
        .check-list li { position: relative; padding-left: 29px; }
        .check-list li::before { content: "✓"; position: absolute; left: 0; color: var(--gold); font-weight: 800; }
        .posts { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
        .post-card { padding: 25px; }
        .post-meta { display: flex; gap: 14px; align-items: center; color: var(--muted); font-size: 12px; margin-bottom: 13px; }
        .post-tag { color: var(--gold); font-weight: 700; }
        .post-card h3 { font-size: 19px; line-height: 1.45; margin-bottom: 8px; }
        .post-card p { color: var(--muted); font-size: 14px; margin-bottom: 16px; }
        .read-link { color: var(--ink); font-size: 13px; font-weight: 800; }
        .read-link::after { content: " →"; color: var(--gold); }
        .empty-state { grid-column: 1 / -1; padding: 38px; border: 1px dashed #c5cec1; border-radius: var(--radius); color: var(--muted); text-align: center; background: rgba(255,255,255,.5); }
        .faq-list { max-width: 900px; margin: 0 auto; border-top: 1px solid var(--line); }
        details { border-bottom: 1px solid var(--line); padding: 21px 0; }
        summary { cursor: pointer; list-style: none; font-weight: 700; padding-right: 30px; position: relative; }
        summary::-webkit-details-marker { display: none; }
        summary::after { content: "+"; position: absolute; right: 2px; color: var(--gold); font-size: 22px; line-height: 1; }
        details[open] summary::after { content: "−"; }
        details p { color: var(--muted); font-size: 14px; margin: 13px 30px 0 0; }
        .cta-band { padding: 75px 0; background: var(--gold); color: var(--ink-deep); }
        .cta-inner { display: flex; align-items: center; justify-content: space-between; gap: 28px; }
        .cta-inner h2 { font-size: 34px; margin-bottom: 8px; }
        .cta-inner p { margin: 0; color: rgba(16,37,31,.72); }
        .cta-band .btn-primary { background: var(--ink-deep); }
        .site-footer { background: var(--ink-deep); color: var(--white); padding: 58px 0 24px; }
        .footer-grid { display: grid; grid-template-columns: 1.5fr .8fr .8fr 1fr; gap: 40px; padding-bottom: 46px; }
        .footer-brand p, .footer-col p { color: rgba(255,255,255,.58); font-size: 13px; }
        .footer-brand p { max-width: 280px; margin-top: 16px; }
        .footer-col h3 { color: var(--gold-soft); font-size: 14px; margin-bottom: 15px; }
        .footer-col a { display: block; color: rgba(255,255,255,.64); font-size: 13px; margin: 8px 0; transition: color var(--ease); }
        .footer-col a:hover { color: var(--white); }
        .copyright { border-top: 1px solid rgba(255,255,255,.13); padding-top: 18px; color: rgba(255,255,255,.42); font-size: 12px; }
        :focus-visible { outline: 3px solid rgba(179,145,82,.55); outline-offset: 3px; }
        @media (max-width: 900px) {
            .nav-wrap { gap: 20px; }
            .brand { min-width: auto; }
            .feature-grid, .split-section { grid-template-columns: 1fr; }
            .split-section { gap: 35px; }
            .footer-grid { grid-template-columns: repeat(2, 1fr); }
        }
        @media (max-width: 700px) {
            .container { width: min(100% - 32px, 560px); }
            .site-header { position: relative; }
            .nav-wrap { min-height: 68px; justify-content: space-between; }
            .menu-toggle { display: block; }
            .main-nav { display: none; position: absolute; top: 68px; left: 0; right: 0; padding: 12px 16px 20px; background: var(--paper); border-bottom: 1px solid var(--line); flex-direction: column; align-items: stretch; gap: 0; }
            .main-nav.open { display: flex; }
            .main-nav a { padding: 12px 0; }
            .main-nav a::after { bottom: 6px; }
            .nav-action { display: none; }
            .hero { min-height: 610px; }
            .hero-content { padding: 72px 0 90px; }
            h1 { font-size: 43px; }
            .hero p { font-size: 16px; }
            .trust-grid, .card-matrix, .posts { grid-template-columns: 1fr; }
            .trust-item { padding: 18px 4px; border-left: 0; }
            .section { padding: 72px 0; }
            .section-head { display: block; margin-bottom: 28px; }
            .section-head h2, .split-copy h2 { font-size: 29px; }
            .feature-story { min-height: 340px; }
            .cta-inner { display: block; }
            .cta-inner .btn-primary { margin-top: 22px; }
            .footer-grid { grid-template-columns: 1fr 1fr; gap: 28px 18px; }
        }
        @media (max-width: 420px) {
            .footer-grid { grid-template-columns: 1fr; }
            .brand-copy strong { font-size: 15px; }
        }

/* roulang page: article */
:root {
            --ink: #18332d;
            --ink-deep: #10251f;
            --olive: #667456;
            --gold: #b39152;
            --gold-soft: #e8d8b6;
            --paper: #f7f6f1;
            --mist: #eef0e9;
            --white: #ffffff;
            --muted: #6d7870;
            --line: #dce1d8;
            --radius: 12px;
            --radius-sm: 7px;
            --shadow: 0 14px 40px rgba(24, 51, 45, .09);
            --shadow-hover: 0 20px 48px rgba(24, 51, 45, .15);
            --ease: 220ms ease;
        }
        * { box-sizing: border-box; }
        html { scroll-behavior: smooth; }
        body {
            margin: 0; color: var(--ink); background: var(--paper);
            font-family: "PingFang SC","Microsoft YaHei","Noto Sans CJK SC",Arial,sans-serif;
            line-height: 1.8; font-size: 16px;
        }
        img { display: block; max-width: 100%; }
        a { color: inherit; text-decoration: none; }
        button, input { font: inherit; }
        button { cursor: pointer; }
        :focus-visible { outline: 3px solid rgba(179,145,82,.55); outline-offset: 3px; }
        .container { width: min(1160px, calc(100% - 48px)); margin: 0 auto; }

        .site-header {
            position: sticky; top: 0; z-index: 20; background: rgba(247,246,241,.94);
            border-bottom: 1px solid rgba(220,225,216,.85); backdrop-filter: blur(14px);
        }
        .nav-wrap { min-height: 76px; display: flex; align-items: center; gap: 42px; }
        .brand { display: inline-flex; align-items: center; gap: 11px; min-width: 220px; }
        .brand-mark {
            width: 38px; height: 38px; display: grid; place-items: center; border-radius: 50%;
            background: var(--ink); color: var(--gold-soft); font-weight: 800; font-size: 17px;
        }
        .brand-copy strong { display: block; font-size: 17px; line-height: 1.2; letter-spacing: 0; }
        .brand-copy small { display: block; color: var(--muted); font-size: 10px; margin-top: 3px; }
        .main-nav { display: flex; align-items: center; gap: 30px; margin-left: auto; }
        .main-nav a {
            color: #55635a; font-size: 14px; position: relative; padding: 25px 0;
            transition: color var(--ease);
        }
        .main-nav a::after {
            content: ""; position: absolute; left: 0; right: 100%; bottom: 17px; height: 2px;
            background: var(--gold); transition: right var(--ease);
        }
        .main-nav a:hover, .main-nav a.active { color: var(--ink); }
        .main-nav a:hover::after, .main-nav a.active::after { right: 0; }
        .nav-action, .btn-primary {
            display: inline-flex; align-items: center; justify-content: center; gap: 8px;
            min-height: 44px; padding: 0 20px; border: 1px solid var(--ink); border-radius: var(--radius-sm);
            background: var(--ink); color: var(--white); font-size: 14px; font-weight: 700;
            transition: transform var(--ease), background var(--ease), box-shadow var(--ease);
        }
        .nav-action:hover, .btn-primary:hover {
            color: var(--white); background: var(--ink-deep); transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(16,37,31,.18);
        }
        .menu-toggle {
            display: none; border: 0; background: transparent; color: var(--ink);
            font-size: 24px; padding: 6px;
        }

        .article-banner {
            position: relative; overflow: hidden; min-height: 300px; display: flex; align-items: end;
            color: var(--white);
            background:
                linear-gradient(90deg, rgba(16,37,31,.92), rgba(16,37,31,.62)),
                url('/assets/images/backpic/back-2.png') center/cover no-repeat;
        }
        .article-banner::after {
            content: ""; position: absolute; width: 330px; height: 330px; border-radius: 50%;
            right: 8%; top: -130px; border: 1px solid rgba(232,216,182,.35);
            box-shadow: 0 0 0 44px rgba(232,216,182,.06), 0 0 0 88px rgba(232,216,182,.04);
        }
        .banner-inner { position: relative; z-index: 1; width: 100%; padding: 66px 0 54px; }
        .eyebrow {
            display: inline-flex; align-items: center; gap: 8px; color: var(--gold-soft);
            font-size: 13px; font-weight: 700;
        }
        .eyebrow::before { content: ""; width: 25px; height: 1px; background: var(--gold-soft); }
        .article-banner h1 {
            max-width: 900px; margin: 16px 0 0; font-size: clamp(30px, 4.2vw, 52px);
            line-height: 1.3; letter-spacing: -.02em; font-weight: 800;
        }

        .article-shell { padding: 0 0 92px; }
        .crumbs {
            display: flex; flex-wrap: wrap; gap: 8px; align-items: center; padding: 26px 0;
            color: var(--muted); font-size: 13px;
        }
        .crumbs a { transition: color var(--ease); }
        .crumbs a:hover { color: var(--gold); }
        .crumbs .slash { opacity: .55; }
        .article-meta {
            display: flex; flex-wrap: wrap; align-items: center; gap: 10px; margin-bottom: 30px;
            padding-bottom: 22px; border-bottom: 1px solid var(--line); color: var(--muted); font-size: 13px;
        }
        .tag {
            display: inline-flex; align-items: center; min-height: 28px; padding: 0 10px;
            border: 1px solid #d5dccf; border-radius: 20px; background: var(--mist);
            color: var(--olive); font-size: 12px; font-weight: 700;
        }
        .dot { width: 3px; height: 3px; border-radius: 50%; background: var(--gold); }
        .reading-layout { display: grid; grid-template-columns: minmax(0, 1fr) 260px; gap: 54px; align-items: start; }
        .article-main {
            min-width: 0; padding: clamp(24px, 4vw, 48px); border: 1px solid var(--line);
            border-radius: var(--radius); background: var(--white); box-shadow: var(--shadow);
        }
        .article-main > *:first-child { margin-top: 0; }
        .article-main h2 {
            margin: 48px 0 18px; padding-top: 8px; color: var(--ink-deep);
            font-size: clamp(23px, 2.6vw, 31px); line-height: 1.42; font-weight: 800;
        }
        .article-main h3 {
            margin: 34px 0 14px; color: var(--ink); font-size: 21px; line-height: 1.5; font-weight: 800;
        }
        .article-main h4 { margin: 26px 0 12px; font-size: 18px; font-weight: 800; }
        .article-main p { margin: 0 0 20px; color: #354a41; }
        .article-main ul, .article-main ol { margin: 0 0 24px; padding-left: 1.45em; color: #354a41; }
        .article-main li { margin: 8px 0; padding-left: 4px; }
        .article-main a { color: #6e5930; border-bottom: 1px solid rgba(179,145,82,.45); }
        .article-main a:hover { color: var(--ink); border-color: var(--ink); }
        .article-main blockquote {
            margin: 30px 0; padding: 20px 24px; border-left: 4px solid var(--gold);
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0; background: #faf7ef;
            color: #526158; font-size: 17px;
        }
        .article-main hr { border: 0; border-top: 1px solid var(--line); margin: 40px 0; }
        .article-main img {
            width: 100%; height: auto; margin: 30px 0; border: 1px solid var(--line);
            border-radius: var(--radius-sm); box-shadow: 0 10px 28px rgba(24,51,45,.08);
        }
        .article-main table {
            width: 100%; margin: 28px 0; border-collapse: collapse; overflow: hidden;
            border: 1px solid var(--line); border-radius: var(--radius-sm); font-size: 14px;
        }
        .article-main th { background: var(--mist); color: var(--ink); font-weight: 800; }
        .article-main th, .article-main td { padding: 13px 14px; border: 1px solid var(--line); text-align: left; }
        .article-main pre, .article-main code {
            font-family: "SFMono-Regular", Consolas, monospace; font-size: .9em;
        }
        .article-main pre {
            padding: 20px; overflow: auto; border-radius: var(--radius-sm);
            background: var(--ink-deep); color: #e8eee7;
        }

        .article-aside { position: sticky; top: 104px; }
        .aside-card {
            padding: 23px; border: 1px solid var(--line); border-radius: var(--radius);
            background: rgba(255,255,255,.75); box-shadow: 0 7px 22px rgba(24,51,45,.04);
        }
        .aside-card + .aside-card { margin-top: 16px; }
        .aside-card h2 { margin: 0 0 14px; font-size: 16px; font-weight: 800; }
        .aside-card p { margin: 0; color: var(--muted); font-size: 14px; line-height: 1.8; }
        .aside-links { display: grid; gap: 3px; }
        .aside-links a {
            padding: 9px 0; border-bottom: 1px solid var(--line); color: #506056;
            font-size: 14px; transition: color var(--ease), padding var(--ease);
        }
        .aside-links a:last-child { border-bottom: 0; }
        .aside-links a:hover { padding-left: 5px; color: var(--gold); }
        .return-link {
            display: inline-flex; align-items: center; gap: 8px; margin-top: 18px; color: var(--ink);
            font-size: 14px; font-weight: 700; transition: color var(--ease);
        }
        .return-link:hover { color: var(--gold); }

        .not-found { text-align: center; padding: 48px 20px; }
        .not-found h2 { margin: 0 0 12px; font-size: 26px; }
        .not-found p { margin-bottom: 24px; color: var(--muted); }

        .related-section { padding: 0 0 96px; }
        .section-title { margin: 0 0 24px; font-size: 29px; line-height: 1.35; font-weight: 800; }
        .related-grid { display: grid; grid-template-columns: 1.3fr 1fr 1fr; gap: 18px; }
        .related-card {
            display: flex; flex-direction: column; min-height: 208px; padding: 25px; overflow: hidden;
            border: 1px solid var(--line); border-radius: var(--radius); background: var(--white);
            box-shadow: 0 5px 18px rgba(24,51,45,.035);
            transition: transform var(--ease), box-shadow var(--ease), border-color var(--ease);
        }
        .related-card:hover { transform: translateY(-4px); border-color: #c5cec1; box-shadow: var(--shadow-hover); }
        .related-card.featured {
            color: var(--white);
            background:
                linear-gradient(135deg, rgba(16,37,31,.94), rgba(24,51,45,.73)),
                url('/assets/images/coverpic/cover-3.png') center/cover no-repeat;
            border-color: transparent;
        }
        .related-card .tag { width: fit-content; margin-bottom: 15px; }
        .related-card.featured .tag { background: rgba(255,255,255,.12); border-color: rgba(255,255,255,.25); color: var(--gold-soft); }
        .related-card h3 { margin: 0 0 10px; font-size: 20px; line-height: 1.45; font-weight: 800; }
        .related-card p { margin: 0; color: var(--muted); font-size: 14px; line-height: 1.75; }
        .related-card.featured p { color: rgba(255,255,255,.76); }
        .card-arrow { margin-top: auto; padding-top: 17px; color: var(--gold); font-size: 14px; font-weight: 800; }

        .cta-strip {
            margin-bottom: 96px; padding: 43px clamp(24px,5vw,58px); border-radius: var(--radius);
            color: var(--white); background: var(--ink-deep);
            display: flex; align-items: center; justify-content: space-between; gap: 28px;
        }
        .cta-strip h2 { margin: 0 0 7px; font-size: 28px; font-weight: 800; }
        .cta-strip p { margin: 0; color: rgba(255,255,255,.68); }
        .cta-strip .btn-primary { flex: 0 0 auto; background: var(--gold); border-color: var(--gold); }
        .cta-strip .btn-primary:hover { background: #9e7d42; }

        .site-footer { padding: 68px 0 0; background: var(--ink-deep); color: rgba(255,255,255,.72); }
        .footer-grid { display: grid; grid-template-columns: 1.45fr .8fr .8fr 1fr; gap: 40px; }
        .site-footer .brand { min-width: 0; }
        .site-footer .brand-mark { background: var(--gold); color: var(--ink-deep); }
        .footer-brand p { max-width: 330px; margin: 18px 0 0; font-size: 14px; line-height: 1.85; }
        .footer-col h3 { margin: 2px 0 15px; color: var(--white); font-size: 15px; font-weight: 800; }
        .footer-col a, .footer-col p { display: block; margin: 0 0 9px; font-size: 14px; color: rgba(255,255,255,.62); transition: color var(--ease); }
        .footer-col a:hover { color: var(--gold-soft); }
        .copyright { margin-top: 47px; padding: 19px 0; border-top: 1px solid rgba(255,255,255,.12); color: rgba(255,255,255,.42); font-size: 12px; }

        @media (max-width: 1024px) {
            .reading-layout { grid-template-columns: minmax(0,1fr) 220px; gap: 28px; }
            .related-grid { grid-template-columns: 1fr 1fr; }
            .related-card.featured { grid-column: span 2; }
            .footer-grid { grid-template-columns: 1.4fr 1fr 1fr; }
            .footer-brand { grid-column: span 3; }
        }
        @media (max-width: 768px) {
            .container { width: min(100% - 32px, 1160px); }
            .nav-wrap { min-height: 67px; gap: 14px; }
            .brand { min-width: 0; }
            .main-nav { gap: 17px; }
            .main-nav a { padding: 21px 0; font-size: 13px; }
            .main-nav a::after { bottom: 13px; }
            .nav-action { display: none; }
            .article-banner { min-height: 250px; }
            .banner-inner { padding: 48px 0 40px; }
            .article-shell { padding-bottom: 62px; }
            .reading-layout { grid-template-columns: 1fr; }
            .article-aside { position: static; display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
            .aside-card + .aside-card { margin-top: 0; }
            .related-section { padding-bottom: 64px; }
            .cta-strip { margin-bottom: 64px; align-items: flex-start; flex-direction: column; }
        }
        @media (max-width: 520px) {
            body { font-size: 15px; }
            .brand-copy strong { font-size: 15px; }
            .brand-copy small { font-size: 9px; }
            .main-nav { gap: 14px; }
            .main-nav a { font-size: 12px; }
            .article-banner h1 { font-size: 29px; }
            .article-main { padding: 23px 19px; }
            .article-main h2 { margin-top: 36px; font-size: 23px; }
            .article-main h3 { font-size: 19px; }
            .article-meta { gap: 8px; }
            .article-aside { grid-template-columns: 1fr; }
            .related-grid { grid-template-columns: 1fr; }
            .related-card.featured { grid-column: auto; }
            .cta-strip { padding: 31px 24px; }
            .cta-strip h2 { font-size: 23px; }
            .footer-grid { grid-template-columns: 1fr 1fr; gap: 28px 20px; }
            .footer-brand { grid-column: span 2; }
            .footer-col:last-child { grid-column: span 2; }
        }

/* roulang page: category1 */
:root {
            --ink: #18332d;
            --ink-deep: #10251f;
            --olive: #667456;
            --gold: #b39152;
            --gold-soft: #e8d8b6;
            --paper: #f7f6f1;
            --mist: #eef0e9;
            --white: #ffffff;
            --muted: #6d7870;
            --line: #dce1d8;
            --radius: 12px;
            --radius-sm: 7px;
            --shadow: 0 14px 40px rgba(24, 51, 45, .09);
            --shadow-hover: 0 20px 48px rgba(24, 51, 45, .15);
            --ease: 220ms ease;
        }
        * { box-sizing: border-box; }
        html { scroll-behavior: smooth; }
        body {
            margin: 0;
            color: var(--ink);
            background: var(--paper);
            font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", Arial, sans-serif;
            line-height: 1.75;
            font-size: 16px;
        }
        img { display: block; max-width: 100%; }
        a { color: inherit; text-decoration: none; }
        button, input { font: inherit; }
        button { cursor: pointer; }
        :focus-visible { outline: 3px solid rgba(179,145,82,.52); outline-offset: 3px; }
        .container { width: min(1160px, calc(100% - 48px)); margin: 0 auto; }

        .site-header {
            position: sticky;
            top: 0;
            z-index: 20;
            background: rgba(247,246,241,.94);
            border-bottom: 1px solid rgba(220,225,216,.85);
            backdrop-filter: blur(14px);
        }
        .nav-wrap { min-height: 76px; display: flex; align-items: center; gap: 42px; }
        .brand { display: inline-flex; align-items: center; gap: 11px; min-width: 220px; }
        .brand-mark {
            width: 38px; height: 38px; display: grid; place-items: center;
            border-radius: 50%; background: var(--ink); color: var(--gold-soft);
            font-weight: 800; font-size: 17px;
        }
        .brand-copy strong { display: block; font-size: 17px; line-height: 1.2; letter-spacing: 0; }
        .brand-copy small { display: block; color: var(--muted); font-size: 10px; margin-top: 3px; }
        .main-nav { display: flex; align-items: center; gap: 30px; margin-left: auto; }
        .main-nav a { color: #55635a; font-size: 14px; position: relative; padding: 25px 0; transition: color var(--ease); }
        .main-nav a::after { content: ""; position: absolute; left: 0; right: 100%; bottom: 17px; height: 2px; background: var(--gold); transition: right var(--ease); }
        .main-nav a:hover, .main-nav a.active { color: var(--ink); }
        .main-nav a:hover::after, .main-nav a.active::after { right: 0; }
        .nav-action, .btn-primary {
            display: inline-flex; align-items: center; justify-content: center; gap: 8px;
            min-height: 44px; padding: 0 20px; border: 0; border-radius: var(--radius-sm);
            background: var(--ink); color: var(--white); font-size: 14px; font-weight: 700;
            transition: transform var(--ease), background var(--ease), box-shadow var(--ease);
        }
        .nav-action:hover, .btn-primary:hover { background: var(--ink-deep); transform: translateY(-2px); box-shadow: 0 8px 20px rgba(16,37,31,.18); }
        .btn-secondary {
            display: inline-flex; align-items: center; justify-content: center; min-height: 44px;
            padding: 0 20px; border: 1px solid var(--ink); border-radius: var(--radius-sm);
            color: var(--ink); background: transparent; font-size: 14px; font-weight: 700;
            transition: all var(--ease);
        }
        .btn-secondary:hover { color: var(--white); background: var(--ink); transform: translateY(-2px); }
        .menu-toggle { display: none; border: 0; background: transparent; color: var(--ink); font-size: 24px; }

        .page-hero {
            position: relative; overflow: hidden; color: var(--white);
            background:
                linear-gradient(90deg, rgba(16,37,31,.95), rgba(16,37,31,.82) 52%, rgba(16,37,31,.54)),
                url('/assets/images/backpic/back-2.png') center/cover no-repeat;
        }
        .page-hero::after {
            content: ""; position: absolute; width: 420px; height: 420px; right: -130px; bottom: -250px;
            border: 1px solid rgba(232,216,182,.3); border-radius: 50%;
            box-shadow: 0 0 0 55px rgba(232,216,182,.06), 0 0 0 110px rgba(232,216,182,.04);
        }
        .hero-inner { position: relative; z-index: 1; padding: 82px 0 88px; max-width: 790px; }
        .crumbs { display: flex; align-items: center; gap: 9px; color: rgba(255,255,255,.65); font-size: 13px; margin-bottom: 27px; }
        .crumbs a { transition: color var(--ease); }
        .crumbs a:hover { color: var(--gold-soft); }
        .eyebrow, .badge {
            display: inline-flex; align-items: center; gap: 7px; color: var(--gold-soft);
            font-size: 12px; font-weight: 700;
        }
        .eyebrow::before { content: ""; width: 25px; height: 1px; background: var(--gold-soft); }
        h1, h2, h3, p { margin-top: 0; }
        h1 { margin: 15px 0 18px; font-size: clamp(36px, 5vw, 58px); line-height: 1.22; letter-spacing: -.02em; }
        .hero-inner > p { max-width: 675px; margin-bottom: 27px; color: rgba(255,255,255,.8); font-size: 17px; }
        .tag-row { display: flex; flex-wrap: wrap; gap: 9px; }
        .tag {
            display: inline-flex; align-items: center; min-height: 30px; padding: 3px 11px;
            border: 1px solid rgba(255,255,255,.2); border-radius: 99px; color: rgba(255,255,255,.79);
            background: rgba(255,255,255,.07); font-size: 12px;
        }

        .section { padding: 94px 0; }
        .section-soft { background: var(--mist); }
        .section-head { display: flex; align-items: end; justify-content: space-between; gap: 30px; margin-bottom: 38px; }
        .section-head h2 { margin-bottom: 9px; font-size: clamp(28px, 3.3vw, 39px); line-height: 1.3; }
        .section-head p { max-width: 545px; margin-bottom: 0; color: var(--muted); }
        .intro-grid { display: grid; grid-template-columns: 1fr 1.07fr; gap: 65px; align-items: center; }
        .intro-image { position: relative; }
        .intro-image img { width: 100%; height: 410px; border-radius: var(--radius); object-fit: cover; box-shadow: var(--shadow); }
        .image-note {
            position: absolute; right: -18px; bottom: -21px; width: min(260px, 72%);
            padding: 20px; border: 1px solid rgba(220,225,216,.9); border-radius: var(--radius-sm);
            color: var(--ink); background: var(--white); box-shadow: var(--shadow);
        }
        .image-note strong { display: block; font-size: 24px; line-height: 1.1; color: var(--gold); }
        .image-note span { display: block; margin-top: 5px; color: var(--muted); font-size: 13px; line-height: 1.55; }
        .intro-copy h2 { font-size: clamp(28px, 3vw, 38px); line-height: 1.33; margin-bottom: 19px; }
        .intro-copy p { color: var(--muted); margin-bottom: 17px; }
        .check-list { display: grid; gap: 13px; margin: 26px 0 0; padding: 0; list-style: none; }
        .check-list li { position: relative; padding-left: 29px; color: #43534a; }
        .check-list li::before {
            content: "✓"; position: absolute; left: 0; top: 3px; width: 19px; height: 19px;
            display: grid; place-items: center; border-radius: 50%; color: var(--ink); background: var(--gold-soft);
            font-size: 12px; font-weight: 800; line-height: 1;
        }

        .topic-grid { display: grid; grid-template-columns: repeat(12, 1fr); gap: 18px; }
        .topic-card {
            min-height: 224px; padding: 28px; border: 1px solid var(--line); border-radius: var(--radius);
            background: var(--white); box-shadow: 0 5px 18px rgba(24,51,45,.035);
            transition: transform var(--ease), box-shadow var(--ease), border-color var(--ease);
        }
        .topic-card:hover { transform: translateY(-5px); border-color: #c5cec1; box-shadow: var(--shadow-hover); }
        .topic-card:nth-child(1) { grid-column: span 7; background: var(--ink); color: var(--white); }
        .topic-card:nth-child(2) { grid-column: span 5; }
        .topic-card:nth-child(3), .topic-card:nth-child(4), .topic-card:nth-child(5) { grid-column: span 4; }
        .topic-index { display: block; margin-bottom: 24px; color: var(--gold); font-size: 12px; font-weight: 800; letter-spacing: .08em; }
        .topic-card h3 { font-size: 21px; line-height: 1.35; margin-bottom: 10px; }
        .topic-card p { margin-bottom: 0; color: var(--muted); font-size: 14px; }
        .topic-card:first-child p { color: rgba(255,255,255,.72); }
        .topic-card:first-child .topic-index { color: var(--gold-soft); }

        .path-wrap { display: grid; grid-template-columns: .88fr 1.12fr; gap: 30px; align-items: stretch; }
        .path-title {
            padding: 36px; border-radius: var(--radius); color: var(--white); background: var(--ink);
            display: flex; flex-direction: column; justify-content: space-between;
        }
        .path-title h2 { font-size: 31px; line-height: 1.35; margin-bottom: 18px; }
        .path-title p { color: rgba(255,255,255,.69); margin-bottom: 0; }
        .path-steps { display: grid; gap: 1px; overflow: hidden; border: 1px solid var(--line); border-radius: var(--radius); background: var(--line); }
        .path-step { display: grid; grid-template-columns: 56px 1fr; gap: 19px; padding: 22px 25px; background: var(--white); }
        .step-no { width: 36px; height: 36px; display: grid; place-items: center; border-radius: 50%; color: var(--gold); background: #f5f0e5; font-weight: 800; font-size: 13px; }
        .path-step h3 { margin: 2px 0 4px; font-size: 18px; }
        .path-step p { margin: 0; color: var(--muted); font-size: 14px; }

        .highlight-panel {
            display: grid; grid-template-columns: 1.1fr .9fr; overflow: hidden;
            border: 1px solid var(--line); border-radius: var(--radius); background: var(--white); box-shadow: var(--shadow);
        }
        .highlight-content { padding: 48px; }
        .highlight-content h2 { margin: 12px 0 15px; font-size: 32px; line-height: 1.35; }
        .highlight-content > p { color: var(--muted); margin-bottom: 26px; }
        .detail-list { margin: 0; padding: 0; list-style: none; border-top: 1px solid var(--line); }
        .detail-list li { display: flex; justify-content: space-between; gap: 20px; padding: 13px 0; border-bottom: 1px solid var(--line); color: #48584e; font-size: 14px; }
        .detail-list span:last-child { color: var(--olive); white-space: nowrap; font-weight: 700; }
        .highlight-panel figure { min-height: 330px; margin: 0; }
        .highlight-panel img { width: 100%; height: 100%; object-fit: cover; }

        .faq-layout { display: grid; grid-template-columns: .7fr 1.3fr; gap: 72px; align-items: start; }
        .faq-side h2 { font-size: 34px; line-height: 1.35; margin: 12px 0; }
        .faq-side p { color: var(--muted); }
        .faq-list { display: grid; gap: 10px; }
        .faq-item { overflow: hidden; border: 1px solid var(--line); border-radius: var(--radius-sm); background: var(--white); }
        .faq-item summary {
            display: flex; align-items: center; justify-content: space-between; gap: 20px;
            padding: 19px 21px; cursor: pointer; font-size: 16px; font-weight: 700; list-style: none;
        }
        .faq-item summary::-webkit-details-marker { display: none; }
        .faq-item summary::after { content: "+"; color: var(--gold); font-size: 24px; font-weight: 400; transition: transform var(--ease); }
        .faq-item[open] summary::after { transform: rotate(45deg); }
        .faq-item p { margin: 0; padding: 0 21px 20px; color: var(--muted); font-size: 14px; }

        .cta-section { padding: 0 0 98px; }
        .cta-box {
            position: relative; overflow: hidden; padding: 54px 58px; border-radius: var(--radius);
            color: var(--white); background: var(--ink-deep);
        }
        .cta-box::before {
            content: ""; position: absolute; top: -185px; right: -70px; width: 440px; height: 440px;
            border: 1px solid rgba(232,216,182,.2); border-radius: 50%;
            box-shadow: 0 0 0 52px rgba(232,216,182,.04), 0 0 0 104px rgba(232,216,182,.025);
        }
        .cta-content { position: relative; z-index: 1; display: flex; align-items: center; justify-content: space-between; gap: 36px; }
        .cta-content h2 { margin: 10px 0 8px; font-size: 34px; line-height: 1.3; }
        .cta-content p { max-width: 630px; margin: 0; color: rgba(255,255,255,.7); }
        .cta-box .btn-primary { flex: 0 0 auto; color: var(--ink); background: var(--gold-soft); }
        .cta-box .btn-primary:hover { background: #f2e4c7; }

        .site-footer { color: rgba(255,255,255,.68); background: var(--ink-deep); }
        .footer-grid { display: grid; grid-template-columns: 1.5fr .8fr .8fr 1fr; gap: 38px; padding: 59px 0 42px; }
        .footer-brand .brand { margin-bottom: 18px; }
        .footer-brand p { max-width: 320px; margin: 0; font-size: 14px; }
        .footer-col h3 { margin: 0 0 14px; color: var(--gold-soft); font-size: 14px; }
        .footer-col a, .footer-col p { display: block; margin: 0 0 8px; font-size: 13px; transition: color var(--ease); }
        .footer-col a:hover { color: var(--gold-soft); }
        .copyright { padding: 17px 0 23px; border-top: 1px solid rgba(255,255,255,.11); color: rgba(255,255,255,.43); font-size: 12px; }

        @media (max-width: 1024px) {
            .nav-wrap { gap: 22px; }
            .intro-grid { gap: 38px; }
            .faq-layout { gap: 42px; }
            .footer-grid { grid-template-columns: 1.4fr 1fr 1fr; }
            .footer-col:last-child { grid-column: 2 / 4; }
        }
        @media (max-width: 768px) {
            .container { width: min(100% - 34px, 1160px); }
            .nav-wrap { min-height: 67px; justify-content: space-between; }
            .brand { min-width: 0; }
            .main-nav {
                display: none; position: absolute; top: 67px; left: 0; right: 0; padding: 10px 17px 18px;
                flex-direction: column; align-items: stretch; gap: 0; border-bottom: 1px solid var(--line); background: var(--paper);
            }
            .main-nav.open { display: flex; }
            .main-nav a { padding: 12px 0; }
            .main-nav a::after { bottom: 7px; }
            .menu-toggle { display: block; }
            .page-hero { background-position: 62% center; }
            .hero-inner { padding: 57px 0 64px; }
            .section { padding: 68px 0; }
            .section-head, .cta-content { align-items: flex-start; flex-direction: column; }
            .section-head { gap: 10px; margin-bottom: 28px; }
            .intro-grid, .path-wrap, .highlight-panel, .faq-layout { grid-template-columns: 1fr; }
            .intro-image img { height: 330px; }
            .topic-card:nth-child(n) { grid-column: span 6; }
            .topic-card:first-child { grid-column: span 12; }
            .highlight-panel figure { min-height: 270px; grid-row: 1; }
            .highlight-content { padding: 32px; }
            .footer-grid { grid-template-columns: repeat(2, 1fr); gap: 30px; }
            .footer-brand { grid-column: span 2; }
            .footer-col:last-child { grid-column: auto; }
        }
        @media (max-width: 520px) {
            body { font-size: 15px; }
            .brand-copy strong { font-size: 15px; }
            .brand-copy small { font-size: 9px; }
            .hero-inner { padding: 47px 0 54px; }
            h1 { font-size: 35px; }
            .hero-inner > p { font-size: 15px; }
            .intro-image img { height: 275px; }
            .image-note { right: 10px; bottom: -16px; padding: 15px; }
            .section { padding: 58px 0; }
            .topic-grid { gap: 12px; }
            .topic-card:nth-child(n) { grid-column: span 12; min-height: auto; padding: 23px; }
            .path-title, .highlight-content { padding: 27px 23px; }
            .path-step { grid-template-columns: 43px 1fr; gap: 10px; padding: 18px; }
            .faq-side h2, .cta-content h2 { font-size: 29px; }
            .cta-box { padding: 36px 25px; }
            .cta-box .btn-primary { width: 100%; }
            .footer-grid { grid-template-columns: 1fr; }
            .footer-brand, .footer-col:last-child { grid-column: auto; }
        }