/* roulang page: index */
/* ===== Design Tokens & Reset ===== */
    :root {
        --primary: #EA5A2A;
        --primary-dark: #C74418;
        --primary-glow: rgba(234, 90, 42, 0.18);
        --accent: #1E8F7B;
        --bg-light: #FAF9F6;
        --card: #FFFFFF;
        --bg-deep: #11181C;
        --bg-deep-soft: #0C1215;
        --ink: #1F2623;
        --ink-soft: #5F6B66;
        --text-reverse: #F3F0E8;
        --border: #E4DFD5;
        --radius-btn: 8px;
        --radius-card: 16px;
        --radius-img: 20px;
        --shadow-card: 0 8px 24px rgba(17,24,21,.06);
        --shadow-card-hover: 0 16px 36px rgba(15,23,20,.14);
        --transition: all .2s ease;
    }
    * { box-sizing: border-box; margin: 0; padding: 0; }
    html { scroll-behavior: smooth; }
    body {
        font-family: "PingFang SC","Microsoft YaHei","Noto Sans CJK SC",system-ui,-apple-system,sans-serif;
        background: var(--bg-light);
        color: var(--ink);
        line-height: 1.6;
        -webkit-font-smoothing: antialiased;
    }
    img { max-width: 100%; display: block; }
    a { color: inherit; text-decoration: none; transition: var(--transition); }
    button { font-family: inherit; cursor: pointer; }

    .container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
    .container-wide { max-width: 1280px; margin: 0 auto; padding: 0 24px; }

    h1, h2, h3, h4 { line-height: 1.25; }
    section { scroll-margin-top: 80px; }

    /* ===== Selection & Scrollbar ===== */
    ::selection { background: var(--primary); color: #fff; }
    ::-webkit-scrollbar { width: 10px; }
    ::-webkit-scrollbar-track { background: #ececec; }
    ::-webkit-scrollbar-thumb { background: var(--primary); border-radius: 8px; }

    /* ===== Navigation ===== */
    .site-header {
        position: fixed;
        top: 0; left: 0; right: 0;
        z-index: 1000;
        transition: background .35s, box-shadow .35s, padding .25s;
        padding: 8px 0;
        background: rgba(16, 22, 24, .58);
        backdrop-filter: blur(14px);
        -webkit-backdrop-filter: blur(14px);
        border-bottom: 1px solid rgba(255, 255, 255, .14);
    }
    .site-header.scrolled {
        background: #FFFFFF;
        box-shadow: 0 4px 18px rgba(17, 24, 21, .05);
        border-bottom: 1px solid #E7E1D8;
        padding: 4px 0;
    }
    .nav-inner { display: flex; align-items: center; justify-content: space-between; min-height: 60px; }
    .nav-logo { display: flex; align-items: baseline; gap: 12px; }
    .nav-logo .logo-text {
        font-size: 1.35rem; font-weight: 700; color: #F3F0E8;
        letter-spacing: .5px; transition: color .3s;
    }
    .nav-logo .logo-domain {
        font-size: .75rem; color: #9AA3A0; letter-spacing: .3px;
        transition: color .3s;
    }
    .site-header.scrolled .nav-logo .logo-text { color: var(--ink); }
    .site-header.scrolled .nav-logo .logo-domain { color: #a5aaa8; }

    .nav-menu { display: flex; align-items: center; gap: 8px; margin: 0 12px; }
    .nav-link {
        display: inline-block;
        padding: 8px 14px;
        border-radius: 6px;
        font-size: .95rem;
        color: rgba(243, 240, 232, .88);
        font-weight: 450;
        transition: background .2s, color .2s;
    }
    .nav-link:hover { background: rgba(255, 255, 255, .15); color: #fff; }
    .nav-link.active { color: #FFFFFF; background: rgba(234, 90, 42, .75); font-weight: 500; }
    .site-header.scrolled .nav-link { color: #43504b; }
    .site-header.scrolled .nav-link:hover { background: rgba(0,0,0,.05); color: var(--ink); }
    .site-header.scrolled .nav-link.active { background: var(--primary); color: #fff; }

    .nav-actions { display: flex; align-items: center; gap: 8px; }
    .nav-search {
        display: flex; align-items: center;
        background: rgba(0,0,0,.15);
        border: 1px solid rgba(255,255,255,.28);
        border-radius: 40px;
        overflow: hidden;
        padding: 0 6px 0 14px;
    }
    .site-header.scrolled .nav-search { background: #f5f3ee; border-color: #E4DFD5; }
    .nav-search input {
        background: transparent;
        border: none; outline: none;
        padding: 7px 0;
        font-size: .85rem;
        color: #fff;
        width: 150px;
    }
    .site-header.scrolled .nav-search input { color: var(--ink); }
    .nav-search input::placeholder { color: rgba(255,255,255,.55); }
    .site-header.scrolled .nav-search input::placeholder { color: #9aa3a0; }
    .nav-search button {
        background: var(--primary);
        color: #fff;
        border: none;
        width: 30px; height: 30px;
        border-radius: 50%;
        display: flex; align-items: center; justify-content: center;
        transition: background .2s;
        flex-shrink: 0;
    }
    .nav-search button:hover { background: var(--primary-dark); }

    .btn-nav-cta {
        display: inline-block;
        background: var(--primary);
        color: #ffffff !important;
        padding: 8px 22px;
        border-radius: var(--radius-btn);
        font-size: .9rem;
        font-weight: 500;
        white-space: nowrap;
        box-shadow: 0 2px 8px rgba(234, 90, 42, .3);
        transition: var(--transition);
        border: 1.5px solid transparent;
    }
    .btn-nav-cta:hover { background: var(--primary-dark); transform: translateY(-2px); box-shadow: 0 6px 16px rgba(207, 68, 24, .3); }

    .menu-toggle {
        display: none;
        background: transparent; border: none;
        width: 40px; height: 40px;
        flex-direction: column;
        align-items: center; justify-content: center;
        gap: 6px;
    }
    .menu-toggle span {
        width: 22px; height: 2px; background: #F3F0E8;
        border-radius: 2px; transition: .3s;
    }
    .site-header.scrolled .menu-toggle span { background: var(--ink); }

    .mobile-menu {
        display: none;
        position: fixed;
        top: 62px; left: 12px; right: 12px;
        z-index: 999;
        background: #FFFFFE;
        border-radius: 16px;
        padding: 22px;
        box-shadow: 0 30px 60px rgba(0,0,0,.25);
        border: 1px solid #E4DFD5;
        transform: translateY(-10px);
        opacity: 0;
        transition: .25s;
        pointer-events: none;
    }
    .mobile-menu.open { transform: translateY(0); opacity: 1; pointer-events: auto; }
    .mobile-menu a {
        display: block;
        padding: 12px 8px;
        font-weight: 500;
        color: var(--ink);
        border-bottom: 1px solid #EFE9DE;
    }
    .mobile-menu a.active { color: var(--primary); }
    .mobile-menu .mobile-search { display: flex; margin-bottom: 10px; }
    .mobile-menu .mobile-search input {
        flex: 1;
        padding: 10px 12px;
        border-radius: 10px 0 0 10px;
        border: 1.5px solid #D8D1C5;
        border-right: none;
        outline: none;
    }
    .mobile-menu .mobile-search button {
        padding: 0 16px;
        background: var(--primary);
        border: none;
        color: white;
        border-radius: 0 10px 10px 0;
    }

    /* ===== Hero ===== */
    .hero-area {
        min-height: 100vh;
        display: flex;
        align-items: center;
        position: relative;
        background-image: url('/assets/images/backpic/back-1.png');
        background-size: cover;
        background-position: center 25%;
    }
    .hero-area .overlay {
        position: absolute; inset: 0;
        background: linear-gradient(90deg, rgba(9, 15, 12, .84) 0%, rgba(10, 21, 23, .7) 55%, rgba(10, 21, 23, .4) 100%);
    }
    .hero-area .container-wide { position: relative; z-index: 2; padding-top: 120px; padding-bottom: 100px; }
    .hero-content { max-width: 720px; }
    .hero-badge {
        display: inline-block;
        font-size: .85rem;
        letter-spacing: 2px;
        color: #F3F0E8;
        padding: 6px 16px 6px 28px;
        border: 1px solid rgba(255,255,255,.25);
        border-radius: 40px;
        margin-bottom: 24px;
        background: rgba(0,0,0,.2);
        position: relative;
    }
    .hero-badge::before {
        content: '';
        position: absolute;
        width: 8px; height: 8px;
        background: var(--primary);
        border-radius: 50%; left: 12px; top: 50%;
        transform: translateY(-50%);
        box-shadow: 0 0 8px var(--primary);
    }
    .hero-title {
        font-size: 3.2rem;
        font-weight: 700;
        color: #FFFFFF;
        line-height: 1.22;
        margin-bottom: 24px;
        letter-spacing: .5px;
    }
    .hero-title .hero-accent { color: var(--primary); }
    .hero-subtitle {
        font-size: 1.15rem;
        color: rgba(243, 240, 232, .9);
        max-width: 620px;
        line-height: 1.8;
        margin-bottom: 42px;
        font-weight: 350;
    }
    .hero-actions { display: flex; flex-wrap: wrap; gap: 16px; }
    .btn-primary {
        display: inline-flex;
        align-items: center;
        gap: 10px;
        background: var(--primary);
        color: #ffffff;
        padding: 15px 30px;
        border-radius: var(--radius-btn);
        font-size: 1rem;
        font-weight: 600;
        border: 1.5px solid transparent;
        transition: var(--transition);
        box-shadow: 0 4px 16px rgba(234, 90, 42, .3);
    }
    .btn-primary:hover { background: var(--primary-dark); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(234, 90, 42, .4); }
    .btn-primary:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }

    .btn-outline {
        display: inline-flex;
        align-items: center;
        gap: 10px;
        background: transparent;
        color: #F3F0E8;
        padding: 13px 30px;
        border-radius: var(--radius-btn);
        font-size: 1rem;
        font-weight: 500;
        border: 1.5px solid rgba(255,255,255,.7);
        transition: var(--transition);
    }
    .btn-outline:hover { background: rgba(255,255,255,.12); border-color: #ffffff; }
    .btn-outline svg { transition: transform .2s; }
    .btn-outline:hover svg { transform: translateX(4px); }

    .hero-metrics {
        display: flex;
        gap: 40px;
        margin-top: 70px;
        flex-wrap: wrap;
    }
    .hero-metric-item { display: flex; flex-direction: column; }
    .hero-metric-num { font-size: 2rem; font-weight: 700; color: #fff; }
    .hero-metric-num span { color: var(--primary); }
    .hero-metric-label { font-size: .85rem; color: rgba(255,255,255,.6); margin-top: 4px; letter-spacing: 1px; }

    /* ===== Pain Points / Q&A Scenarios ===== */
    .section-painpoints { padding: 90px 0; background: var(--bg-light); }
    .section-label {
        display: inline-block;
        font-size: .85rem;
        letter-spacing: 2px;
        padding: 4px 16px;
        border-radius: 40px;
        background: rgba(30, 143, 123, .12);
        color: var(--accent);
        margin-bottom: 18px;
        font-weight: 600;
    }
    .section-title { font-size: 2.1rem; font-weight: 700; margin-bottom: 18px; color: var(--ink); }
    .section-desc { font-size: 1.05rem; color: var(--ink-soft); line-height: 1.8; max-width: 720px; margin-bottom: 32px; }
    .pain-grid {
        display: grid;
        grid-template-columns: 1.2fr .8fr;
        gap: 50px;
        align-items: center;
    }
    .pain-points { display: flex; flex-direction: column; gap: 0; }
    .pain-item {
        display: flex;
        gap: 20px;
        padding: 20px 0;
        border-bottom: 1px solid #ECE7DD;
        align-items: flex-start;
        transition: background .2s;
        border-radius: 8px;
    }
    .pain-item:hover { background: rgba(234, 90, 42, .05); padding-left: 8px; }
    .pain-num {
        font-size: 1.25rem;
        font-weight: 800;
        color: var(--primary);
        min-width: 34px;
        background: rgba(234,90,42,.08);
        width: 34px; height: 34px;
        border-radius: 10px;
        display: flex; align-items: center; justify-content: center;
    }
    .pain-content { flex: 1; }
    .pain-content h3 { font-size: 1.1rem; font-weight: 600; margin-bottom: 6px; }
    .pain-content p { font-size: .93rem; color: var(--ink-soft); line-height: 1.7; }
    .pain-side {
        background: linear-gradient(145deg, #F4F0E8, #FDFCFA);
        border-radius: var(--radius-card);
        padding: 42px 35px;
        box-shadow: var(--shadow-card);
        border: 1px solid var(--border);
        position: relative;
        overflow: hidden;
    }
    .pain-side::after {
        content: '';
        position: absolute;
        right: -32px; bottom: -32px;
        width: 120px; height: 120px;
        background: radial-gradient(circle, rgba(234,90,42,.1), transparent 70%);
    }
    .pain-side-icon { margin-bottom: 20px; }
    .pain-side-title { font-size: 1.25rem; font-weight: 700; margin-bottom: 12px; }
    .pain-side-text { font-size: .92rem; color: var(--ink-soft); line-height: 2.0; }

    /* ===== Solution Cards ===== */
    .section-solutions { background: #FFFFFF; padding: 90px 0; }
    .solution-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 28px; }
    .solution-card {
        background: var(--bg-light);
        border-radius: var(--radius-card);
        padding: 34px 30px;
        border: 1px solid #ECEBE6;
        transition: var(--transition);
        position: relative;
        overflow: hidden;
    }
    .solution-card:hover { box-shadow: var(--shadow-card-hover); transform: translateY(-3px); border-color: transparent; }
    .solution-card::before {
        content: '';
        position: absolute;
        top: 0; left: 0; right: 0;
        height: 3px;
        background: linear-gradient(90deg, var(--primary), var(--accent));
        opacity: 0;
        transition: .3s;
    }
    .solution-card:hover::before { opacity: 1; }
    .solution-card.featured { grid-column: span 2; display: grid; grid-template-columns: 1.4fr .6fr; gap: 30px; background: var(--ink); color: #fff; border: none; }
    .solution-card.featured h3 { color: #fff; }
    .solution-card.featured p { color: rgba(255,255,255,.75); }
    .solution-card.featured .solution-icon { background: rgba(255,255,255,.12); }
    .solution-icon {
        width: 56px; height: 56px;
        background: var(--primary);
        border-radius: 15px;
        display: flex; align-items: center; justify-content: center;
        margin-bottom: 20px;
        color: white;
        font-size: 1.7rem;
        box-shadow: 0 8px 18px rgba(234,90,42,.35);
    }
    .solution-card.featured .solution-icon { box-shadow: none; }
    .solution-card h3 { font-size: 1.35rem; font-weight: 700; margin-bottom: 12px; }
    .solution-card p { font-size: .95rem; color: var(--ink-soft); line-height: 1.8; margin-bottom: 20px; }
    .solution-card.featured p { color: rgba(255,255,255,.8); }
    .solution-link {
        display: inline-flex;
        align-items: center;
        gap: 6px;
        color: var(--primary);
        font-weight: 600;
        font-size: .95rem;
    }
    .solution-card:not(.featured) .solution-link:hover { color: var(--primary-dark); }
    .solution-card:not(.featured) .solution-link:hover svg { transform: translateX(5px); }
    .solution-link svg { transition: transform .2s; }
    .solution-feature-img {
        border-radius: 14px;
        background: rgba(255,255,255,.06);
        height: 100%;
        min-height: 180px;
        display: flex;
        align-items: center;
        justify-content: center;
    }

    /* ===== Stats Section ===== */
    .section-stats {
        position: relative;
        padding: 90px 0;
        background-image: url('/assets/images/backpic/back-2.webp');
        background-size: cover;
        background-attachment: fixed;
        background-position: center;
    }
    .section-stats .overlay-stats {
        position: absolute;
        inset: 0;
        background: rgba(8, 13, 14, .82);
    }
    .section-stats .container-wide { position: relative; z-index: 2; }
    .stats-layout {
        display: grid;
        grid-template-columns: 1.4fr .8fr;
        gap: 50px;
        align-items: center;
    }
    .stats-text-white { color: #fff; }
    .stats-text-white .section-desc { color: rgba(255,255,255,.6); }
    .stats-text-white .section-label { background: rgba(255,255,255,.08); color: #F3F0E8; }
    .stats-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 30px; margin-top: 35px; }
    .stat-item { padding: 10px 0; }
    .stat-item-border { border-left: 1.5px solid rgba(255,255,255,.15); padding-left: 20px; }
    .stat-num {
        font-size: 3rem;
        font-weight: 800;
        color: var(--primary);
        line-height: 1.1;
        letter-spacing: -1px;
    }
    .stat-label { color: rgba(255,255,255,.55); font-size: .9rem; margin-top: 8px; letter-spacing: 1px; }
    .stats-right-visual {
        background: rgba(255,255,255,.05);
        border: 1px solid rgba(255,255,255,.15);
        border-radius: 20px;
        overflow: hidden;
        backdrop-filter: blur(8px);
        box-shadow: 0 30px 60px rgba(0,0,0,.4);
    }
    .browser-bar {
        background: rgba(0,0,0,.45);
        padding: 10px 14px;
        display: flex;
        align-items: center;
        gap: 8px;
    }
    .browser-dot { width: 10px; height: 10px; border-radius: 50%; background: #E0695A; }
    .browser-dot:nth-child(2) { background: #E8B04F; }
    .browser-dot:nth-child(3) { background: #4D9C58; }
    .browser-bar span {
        flex: 1;
        background: rgba(255,255,255,.12);
        height: 16px;
        border-radius: 20px;
        margin-left: 10px;
        padding: 2px 10px;
        font-size: .7rem;
        color: rgba(255,255,255,.6);
        display: flex; align-items: center;
    }
    .stats-visual-screen { padding: 24px; display: flex; flex-direction: column; gap: 12px; }
    .visual-line { height: 10px; border-radius: 20px; background: rgba(255,255,255,.1); }
    .visual-line.short { width: 55%; background: var(--primary); }
    .visual-card-mini {
        display: flex; gap: 12px; background: rgba(255,255,255,.08);
        border-radius: 10px; padding: 14px; align-items: center;
    }
    .mini-cover { width: 70px; height: 54px; border-radius: 6px; background: rgba(255,255,255,.15); }

    /* ===== Latest Info CMS ===== */
    .section-news { padding: 90px 0; background: #FFFFFF; }
    .section-head { display: flex; align-items: flex-end; justify-content: space-between; margin-bottom: 40px; gap: 20px; }
    .more-link {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        font-weight: 600;
        color: var(--ink);
        padding: 8px 0;
        border-bottom: 2px solid transparent;
    }
    .more-link:hover { border-color: var(--primary); color: var(--primary); }
    .more-link svg { transition: transform .2s; }
    .more-link:hover svg { transform: translateX(4px); }
    .news-grid { display: flex; flex-wrap: wrap; gap: 30px; }
    .news-card-main {
        flex: 0 0 calc(65% - 15px);
        background: #FBF9F4;
        border-radius: var(--radius-card);
        overflow: hidden;
        border: 1px solid #F0EBE2;
        transition: var(--transition);
        display: flex;
        flex-direction: column;
    }
    .news-card-main:hover { box-shadow: var(--shadow-card-hover); transform: translateY(-3px); }
    .news-card-side { flex: 1 1 280px; background: #FBF9F4; border-radius: 16px; border: 1px solid #F0EBE2; transition: all .3s; overflow: hidden; }
    .news-card-side:hover { box-shadow: var(--shadow-card-hover); transform: translateY(-3px); }
    .news-main-cover { height: 220px; background: var(--bg-deep); position: relative; overflow: hidden; }
    .news-main-body { padding: 26px 28px; flex: 1; }
    .news-side-cover { height: 140px; background: #333; position: relative; }
    .news-side-body { padding: 18px 20px; }
    .news-category {
        display: inline-block;
        font-size: .7rem;
        background: rgba(30, 143, 123, .1);
        color: var(--accent);
        padding: 3px 10px;
        border-radius: 30px;
        font-weight: 600;
        letter-spacing: .5px;
    }
    .news-date {
        font-size: .8rem;
        color: #9AA3A0;
        margin-left: 10px;
    }
    .news-meta-row { display: flex; align-items: center; margin-bottom: 14px; }
    .news-card-main h3 { font-size: 1.35rem; font-weight: 700; margin-bottom: 12px; line-height: 1.4; }
    .news-card-side h3 { font-size: 1.15rem; font-weight: 600; margin-bottom: 8px; line-height: 1.45; }
    .news-excerpt {
        font-size: .9rem;
        color: var(--ink-soft);
        line-height: 1.8;
        display: -webkit-box;
        -webkit-line-clamp: 2;
        -webkit-box-orient: vertical;
        overflow: hidden;
        margin-top: 12px;
    }
    .news-more-lower { margin-top: 20px; font-size: .85rem; display: flex; justify-content: space-between; color: var(--accent); }

    .empty-state {
        width: 100%;
        text-align: center;
        padding: 60px 24px;
        background: #F4F1EC;
        border-radius: var(--radius-card);
        color: var(--ink-soft);
        border: 1px dashed #D7D0C3;
    }
    .empty-icon { font-size: 3rem; margin-bottom: 14px; opacity: .6; }

    /* ===== CTA & Contact Section ===== */
    .section-cta { padding: 10px 0 120px; background: #FFFFFF; }
    .cta-wrapper {
        background-image: url('/assets/images/backpic/back-3.png');
        background-size: cover;
        background-position: center;
        border-radius: 24px;
        padding: 70px 50px;
        position: relative;
        overflow: hidden;
    }
    .cta-wrapper .cta-overlay { position: absolute; inset: 0; background: rgba(15, 20, 18, .72); }
    .cta-content { position: relative; z-index: 2; text-align: center; max-width: 640px; margin: 0 auto; }
    .cta-content h2 { color: #fff; font-size: 2rem; margin-bottom: 12px; }
    .cta-content p { color: rgba(255,255,255,.75); margin-bottom: 33px; font-size: 1.05rem; }
    .cta-button {
        display: inline-block;
        background: var(--primary);
        color: #fff;
        padding: 16px 44px;
        font-size: 1.05rem;
        border-radius: 10px;
        font-weight: 600;
        transition: var(--transition);
        border: none;
        box-shadow: 0 4px 20px rgba(234,90,42,.4);
    }
    .cta-button:hover { background: var(--primary-dark); transform: translateY(-3px); }

    /* ===== FAQ ===== */
    .faq-section-bg { background: #F7F5F1; padding-top: 80px; }
    .faq-grid-limit { max-width: 880px; margin: 0 auto; }
    .faq-item {
        background: #FFFFFF;
        border-radius: 14px;
        padding: 20px 24px;
        margin-bottom: 12px;
        border: 1px solid #ECE6DB;
        transition: .2s;
    }
    .faq-item:hover { box-shadow: var(--shadow-card); border-color: var(--border); }
    .faq-item:has(details[open]) { background: #fffdf9; border-color: rgba(234, 90, 42, .35); }
    details { display: block; }
    details summary {
        list-style: none;
        cursor: pointer;
        display: flex;
        align-items: center;
        justify-content: space-between;
        font-weight: 600;
        color: var(--ink);
        padding: 6px 0;
        user-select: none;
    }
    details summary::-webkit-details-marker { display: none; }
    details .faq-arrow { transition: transform .3s; color: var(--primary); flex-shrink: 0; margin-left: 10px; }
    details[open] .faq-arrow { transform: rotate(45deg); }
    .faq-answer { font-size: .92rem; color: var(--ink-soft); line-height: 1.8; padding: 10px 30px 4px 0; border-top: 1px dashed #EBDED3; margin-top: 8px; }

    /* ===== Footer ===== */
    .site-footer {
        background: var(--bg-deep);
        color: #a6b1ab;
        padding: 70px 0 40px;
        margin-top: 0;
    }
    .footer-container { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 50px; margin-bottom: 50px; }
    .footer-brand-txt { color: #fff; font-size: 1.2rem; font-weight: 600; margin-bottom: 12px; }
    .footer-brand-desc { font-size: .9rem; line-height: 1.8; color: rgba(255,255,255,.5); margin-top: 15px; margin-bottom: 20px; }
    .footer-domain { font-size: .8rem; color: rgba(255,255,255,.35); letter-spacing: 1px; }
    .footer-col-title { color: #E8E4DC; font-size: 1rem; font-weight: 600; margin-bottom: 18px; }
    .footer-links { display: flex; flex-direction: column; gap: 10px; }
    .footer-links a { font-size: .9rem; color: rgba(255,255,255,.5); transition: all .2s; }
    .footer-links a:hover { color: var(--primary); padding-left: 4px; }
    .footer-copy {
        border-top: 1px solid rgba(255,255,255,.06);
        padding-top: 28px;
        display: flex;
        justify-content: space-between;
        flex-wrap: wrap;
        gap: 10px;
        font-size: .8rem;
        color: rgba(255,255,255,.35);
    }

    /* ===== Modal ===== */
    .modal-overlay {
        position: fixed;
        inset: 0;
        z-index: 2000;
        background: rgba(7, 10, 9, .6);
        backdrop-filter: blur(4px);
        -webkit-backdrop-filter: blur(4px);
        display: none;
        align-items: center;
        justify-content: center;
        padding: 20px;
    }
    .modal-overlay.active { display: flex; }
    .modal-card {
        background: #FFFFFF;
        border-radius: 16px;
        width: 100%;
        max-width: 600px;
        padding: 48px 42px 36px;
        position: relative;
        max-height: 90vh;
        overflow-y: auto;
        box-shadow: 0 40px 80px rgba(0,0,0,.3);
    }
    .modal-close {
        position: absolute; top: 18px; right: 18px;
        width: 36px; height: 36px;
        border-radius: 50%;
        background: #EEE5DC;
        border: none;
        display: flex; align-items: center; justify-content: center;
        transition: .2s;
    }
    .modal-close:hover { background: var(--primary); color: #fff; }
    .modal-card h3 { font-size: 1.4rem; font-weight: 700; margin-bottom: 8px; }
    .modal-card .modal-sub { font-size: .9rem; color: var(--ink-soft); margin-bottom: 25px; }
    .form-group { margin-bottom: 18px; }
    .form-group label { font-size: .9rem; font-weight: 600; margin-bottom: 6px; display: block; }
    .form-group label .req { color: var(--primary); }
    .form-group input,
    .form-group select {
        width: 100%;
        padding: 12px 16px;
        border-radius: 10px;
        border: 1.5px solid #D8D1C5;
        background: #FAFAFA;
        outline: none;
        transition: border-color .2s, box-shadow .2s;
        font-family: inherit;
        color: var(--ink);
    }
    .form-group input:focus,
    .form-group select:focus {
        border-color: var(--primary);
        box-shadow: 0 0 0 3px rgba(234, 90, 42, .15);
        background: #fff;
    }
    .form-group input:invalid:not(:placeholder-shown),
    .form-group select:invalid:not(:placeholder-shown) { border-color: #D23D3D; }
    .form-privacy {
        display: flex;
        align-items: flex-start;
        gap: 8px;
        margin-top: 12px;
        margin-bottom: 20px;
    }
    .form-privacy input { appearance: none; -webkit-appearance: none; width: 18px; height: 18px; flex-shrink: 0; border-radius: 5px; border: 2px solid #CCC; margin-top: 2px; outline: none; cursor: pointer; position: relative; transition: all .2s; }
    .form-privacy input:checked { background: var(--primary); border-color: var(--primary); }
    .form-privacy input:checked::after {
        content: '';
        position: absolute;
        left: 4.5px; top: 1.5px;
        width: 5px; height: 9px;
        border: solid #fff; border-width: 0 2px 2px 0;
        transform: rotate(45deg);
    }
    .form-privacy label { font-size: .82rem; color: #777; display: block; }
    .btn-submit-full { width: 100%; background: var(--primary); border: none; color: white; padding: 14px 0; border-radius: 10px; font-weight: 600; font-size: 1rem; transition: .2s; }
    .btn-submit-full:hover { background: var(--primary-dark); }
    .modal-privacy-link { font-size: .8rem; color: var(--ink-soft); display: block; margin-top: 16px; text-align: center; text-decoration: underline; text-underline-offset: 4px; }
    .modal-err-note { color: #D23D3D; font-size: .8rem; margin-top: 4px; display: none; }

    /* ===== Animation ===== */
    .reveal { opacity: 0; transform: translateY(30px); transition: opacity .7s cubic-bezier(.2,.9,.3,1), transform .7s cubic-bezier(.2,.9,.3,1); }
    .reveal.in-view { opacity: 1; transform: translateY(0); }

    /* ===== Responsive ===== */
    @media(max-width: 1024px) {
        .nav-menu { display: none; }
        .nav-actions .nav-search { display: none; }
        .btn-nav-cta { display: none; }
        .menu-toggle { display: flex; }
        .mobile-wrap { display: block; }
        .pain-grid { grid-template-columns: 1fr; }
        .solution-grid { grid-template-columns: 1fr; }
        .solution-card.featured { grid-column: span 1; grid-template-columns: 1fr; }
        .stats-layout { grid-template-columns: 1fr; }
        .footer-container { grid-template-columns: 1fr 1fr; gap: 30px; }
        .footer-first { grid-column: span 2; }
        .news-card-main { flex: 0 0 100%; }
        .hero-title { font-size: 2.6rem; }
    }
    @media(max-width: 768px) {
        .container, .container-wide { padding: 0 18px; }
        .hero-title { font-size: 2.15rem; }
        .hero-subtitle { font-size: 1rem; }
        .hero-area { min-height: 90vh; }
        .hero-actions .btn-primary, .hero-actions .btn-outline { width: 100%; justify-content: center; }
        .hero-metrics { gap: 20px; }
        .hero-metric-num { font-size: 1.5rem; }
        .section-title { font-size: 1.6rem; }
        .section-painpoints, .section-solutions, .section-news, .section-cta { padding: 70px 0; }
        .pain-side { padding: 30px 22px; }
        .stats-layout { gap: 35px; }
        .footer-container { grid-template-columns: 1fr; }
        .news-main-body, .news-side-body { padding: 20px 18px; }
        .cta-wrapper { padding: 50px 24px; }
        .cta-content h2 { font-size: 1.5rem; }
        .section-head { flex-direction: column; align-items: flex-start; }
        .nav-logo .logo-text { font-size: 1.1rem; }
        .nav-logo .logo-domain { font-size: .7rem; }
        .solution-card { padding: 26px 20px; }
        .mobile-menu { display: block; }
        .modal-card { padding: 40px 24px 30px; }
        .footer-copy { flex-direction: column; }
        .faq-item { padding: 16px 18px; }
    }
    @media(max-width: 520px) {
        .hero-title { font-size: 1.8rem; }
        .hero-badge { font-size: .75rem; }
        .pain-points { gap: 0; }
        .solution-icon { width: 44px; height: 44px; font-size: 1.4rem; border-radius: 12px; }
        .stat-num { font-size: 2.2rem; }
        .footer-container { grid-template-columns: 1fr; gap: 20px; }
        .footer-first { grid-column: span 1; }
        .nav-logo .logo-domain { display: none; }
        .stats-grid { gap: 10px; }
    }

/* roulang page: category1 */
:root {
            --primary: #E1592B;
            --primary-hover: #C24A1C;
            --primary-light: #FDF1E9;
            --accent: #2F8F7A;
            --accent-soft: #E0F0EB;
            --bg-light: #FAF7F2;
            --bg-deep: #141B1F;
            --bg-deep-2: #0C1215;
            --white: #FFFFFF;
            --ink: #212B26;
            --ink-2: #5E6A65;
            --line: #E4DDD0;
            --line-deep: rgba(255, 255, 255, 0.14);
            --radius-btn: 10px;
            --radius-card: 18px;
            --radius-lg: 22px;
            --shadow-1: 0 8px 24px rgba(17, 24, 21, 0.06);
            --shadow-2: 0 16px 36px rgba(15, 23, 20, 0.14);
            --font-stack: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans CJK SC', system-ui, -apple-system, sans-serif;
        }
        * { margin: 0; padding: 0; box-sizing: border-box; }
        html { scroll-behavior: smooth; }
        body {
            font-family: var(--font-stack);
            background-color: var(--bg-light);
            color: var(--ink);
            line-height: 1.7;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
        }
        img, svg { display: block; max-width: 100%; }
        a { color: inherit; text-decoration: none; transition: color 0.2s ease, background 0.2s ease; }
        .container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
        .site-header { position: absolute; top: 0; left: 0; width: 100%; z-index: 50; transition: background 0.25s ease, box-shadow 0.25s ease, border 0.2s ease; border-bottom: 1px solid transparent; }
        .header-inner { display: flex; align-items: center; justify-content: space-between; height: 74px; gap: 16px; }
        .logo-area { display: flex; align-items: baseline; gap: 10px; flex-shrink: 0; }
        .logo-main { font-size: 24px; font-weight: 800; color: #F8F4EC; letter-spacing: 0.5px; line-height: 1.2; transition: color 0.25s ease; white-space: nowrap; }
        .logo-sub { font-size: 12px; font-weight: 400; color: rgba(255, 255, 255, 0.65); letter-spacing: 0.5px; transition: color 0.25s ease; }
        .nav-menu { display: flex; align-items: center; gap: 4px; list-style: none; }
        .nav-link { display: block; padding: 9px 16px; color: rgba(255, 255, 255, 0.9); font-size: 15px; font-weight: 500; border-radius: 999px; transition: background 0.2s ease, color 0.2s ease; white-space: nowrap; }
        .nav-link:hover { background: rgba(255, 255, 255, 0.12); color: #fff; }
        .nav-link.active { background: rgba(255, 255, 255, 0.16); color: #FFF; font-weight: 600; box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.18); }
        .header-actions { display: flex; align-items: center; gap: 12px; }
        .search-box { display: flex; align-items: center; background: rgba(255, 255, 255, 0.12); border-radius: 999px; border: 1px solid rgba(255, 255, 255, 0.25); padding: 6px 8px; transition: all 0.2s ease; }
        .search-box input { background: transparent; border: none; outline: none; color: #fff; width: 120px; padding-left: 6px; font-size: 14px; font-family: inherit; }
        .search-box input::placeholder { color: rgba(255, 255, 255, 0.6); }
        .search-box:hover { border-color: rgba(255, 255, 255, 0.4); background: rgba(255, 255, 255, 0.18); }
        .search-icon { width: 18px; height: 18px; display: block; margin-left: 2px; }
        .header-cta { display: inline-block; background: var(--primary); color: #fff; font-size: 14px; font-weight: 600; padding: 10px 20px; border-radius: var(--radius-btn); transition: background 0.2s, transform 0.15s; box-shadow: 0 4px 14px rgba(225, 89, 43, 0.24); white-space: nowrap; }
        .header-cta:hover { background: var(--primary-hover); transform: translateY(-1px); box-shadow: 0 7px 16px rgba(225, 89, 43, 0.3); }
        .header-cta:focus-visible, .btn:focus-visible, .nav-link:focus-visible, .menu-toggle:focus-visible { outline: 3px solid rgba(225, 89, 43, 0.45); outline-offset: 2px; }
        .menu-toggle { display: none; background: transparent; border: 1px solid rgba(255,255,255,0.4); border-radius: 12px; padding: 6px 10px; color: #fff; cursor: pointer; align-items: center; justify-content: center; }
        .menu-toggle svg { width: 24px; height: 24px; }
        .site-header.scrolled { background: #FDFCF8; border-bottom-color: var(--line); box-shadow: 0 6px 22px rgba(0,0,0,0.06); }
        .site-header.scrolled .logo-main { color: var(--ink); }
        .site-header.scrolled .logo-sub { color: #9AA3A0; }
        .site-header.scrolled .nav-link { color: var(--ink-2); }
        .site-header.scrolled .nav-link:hover { background: rgba(0,0,0,0.04); color: var(--ink); }
        .site-header.scrolled .nav-link.active { background: #E8590C20; color: var(--primary); box-shadow: inset 0 0 0 1px #E8590C50; font-weight: 600; }
        .site-header.scrolled .search-box { background: #F2EFE8; border: 1px solid #D8D0C0; }
        .site-header.scrolled .search-box input { color: var(--ink); }
        .site-header.scrolled .search-box input::placeholder { color: #8E9893; }
        .site-header.scrolled .search-icon path { stroke: #5F6B66; }
        .site-header.scrolled .menu-toggle { color: var(--ink); border-color: #CDD4CE; }

        .header-scroll-spacer { height: 74px; display: none; }
        .top-banner {
            background: var(--bg-deep);
            color: #fff;
            position: relative;
            overflow: hidden;
            padding: 100px 0 48px;
            border-bottom: 1px solid rgba(255,255,255,0.05);
        }
        .top-banner .banner-bg { position: absolute; inset: 0; background-image: url('/assets/images/backpic/back-3.png'); background-size: cover; background-position: center 65%; opacity: 0.4; }
        .banner-overlay { position: absolute; inset: 0; background: linear-gradient(75deg, rgba(12,18,21,0.95) 15%, rgba(12,18,21,0.68) 55%, rgba(12,18,21,0.45) 100%); }
        .banner-content { position: relative; z-index: 2; max-width: 720px; padding-top: 48px; }
        .banner-title { font-size: 42px; font-weight: 800; color: #fff; letter-spacing: 1.5px; line-height: 1.3; margin-bottom: 16px; }
        .banner-title span { color: #F6A96F; }
        .banner-description { font-size: 17px; color: rgba(255,255,255,0.82); margin-bottom: 32px; letter-spacing: 0.3px; }
        .banner-meta { display: flex; gap: 14px; flex-wrap: wrap; }
        .bcrumb { font-size: 13px; color: rgba(255,255,255,0.55); margin-bottom: 20px; }
        .bcrumb a { color: rgba(255,255,255,0.75); border-bottom: 1px dashed rgba(255,255,255,0.3); }
        .bcrumb a:hover { border-color: #fff; }
        .tag-heat { font-size: 13px; padding: 5px 12px; border-radius: 999px; background: rgba(255,255,255,0.08); color: #fff; border: 1px solid rgba(255,255,255,0.2); }

        .section-block { padding: 92px 0; }
        .section-block.tint-section { background: linear-gradient(to bottom, #F8F2E9 0%, #FCFAF6 100%); }
        .section-title-wrap { max-width: 760px; margin-bottom: 48px; }
        .section-label { display: inline-flex; align-items: center; gap: 8px; font-size: 13px; font-weight: 600; letter-spacing: 2px; color: var(--primary); text-transform: uppercase; background: #FDEFE4; padding: 6px 16px; border-radius: 999px; margin-bottom: 16px; }
        .section-label.accent { background: var(--accent-soft); color: #226B5C; }
        .section-title { font-size: 34px; font-weight: 800; letter-spacing: 0.5px; line-height: 1.3; color: var(--ink); margin-bottom: 16px; }
        .section-subtitle { font-size: 17px; color: var(--ink-2); letter-spacing: 0.3px; }

        .flow-card { display: flex; align-items: flex-start; gap: 24px; background: #FFF; border: 1px solid var(--line); border-radius: var(--radius-lg); padding: 40px 32px; box-shadow: var(--shadow-1); position: relative; }
        .flow-card .step-badge { flex: 0 0 52px; width: 52px; height: 52px; border-radius: 50%; background: var(--primary); color: #fff; display: flex; align-items: center; justify-content: center; font-weight: 700; font-size: 22px; margin-top: 4px; }
        .flow-card .step-badge.step-accent { background: var(--accent); }
        .flow-body h3 { font-size: 21px; font-weight: 700; margin-bottom: 10px; color: var(--ink); }
        .flow-body p { color: var(--ink-2); font-size: 15.5px; line-height: 1.8; }
        .check-list { margin-top: 8px; padding-left: 0; list-style: disc inside; color: var(--ink-2); }
        .check-list li { margin-top: 8px; }
        .inline-link { color: var(--primary); font-weight: 500; border-bottom: 1px dashed rgba(225,89,43, 0.4); padding-bottom: 1px; }
        .inline-link:hover { color: var(--primary-hover); border-bottom-style: solid; border-color: var(--primary); }

        .mock-browser {
            background: #fff;
            border-radius: 18px;
            overflow: hidden;
            box-shadow: var(--shadow-2);
            border: 1px solid var(--line);
        }
        .mock-browser .mock-top { height: 34px; background: #E6E1D6; display: flex; align-items: center; padding: 0 8px; gap: 6px; }
        .dot { width: 10px; height: 10px; border-radius: 50%; }
        .mock-url { background: #fff; font-size: 12px; padding: 2px 12px; border-radius: 6px; margin-left: 10px; color: var(--ink-2); flex: 1; max-width: 220px; }

        .compare-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
        .compare-card { background: #fff; border-radius: var(--radius-card); padding: 32px; border-top: 4px solid var(--primary); box-shadow: var(--shadow-1); }
        .compare-card.alt-card { border-top-color: var(--accent); background: #F7FCFA; }
        .compare-card h3 { font-size: 20px; font-weight: 700; margin-bottom: 14px; display: flex; align-items: center; gap: 10px; }
        .compare-card .cmp-desc { color: var(--ink-2); margin-bottom: 16px; }
        .compare-card ul { list-style: none; }
        .compare-card li { position: relative; padding: 6px 0 6px 26px; color: var(--ink); font-size: 15px; border-bottom: 1px dashed #EDEBE4; }
        .compare-card li:last-child { border-bottom: none; }
        .compare-card li::before { content: "✓"; position: absolute; left: 4px; color: var(--primary); font-weight: bold; }
        .alt-card li::before { color: var(--accent); }
        .special-note { background: #FCF7EF; border-left: 4px solid #E8A451; }

        .faq-list { display: flex; flex-direction: column; gap: 18px; max-width: 860px; margin: 0 auto; }
        .faq-item { background: #fff; border-radius: 16px; border: 1px solid var(--line); padding: 0 8px; box-shadow: 0 2px 12px rgba(0,0,0,0.03); transition: box-shadow 0.2s ease, border 0.2s ease; }
        .faq-item[open] { border-color: #E9C1AA; box-shadow: 0 10px 24px rgba(225, 89, 43, 0.08); }
        .faq-item summary { display: flex; justify-content: space-between; align-items: center; cursor: pointer; padding: 22px 24px; list-style: none; font-weight: 600; color: var(--ink); font-size: 16.5px; outline: none; }
        .faq-item summary::-webkit-details-marker { display: none; }
        .faq-item summary:focus-visible { outline: 2px solid var(--primary); outline-offset: -2px; border-radius: 14px; }
        .faq-item .faq-arrow { transition: transform 0.25s ease; flex-shrink: 0; color: var(--primary); }
        .faq-item[open] .faq-arrow { transform: rotate(45deg); }
        .faq-body { padding: 0 24px 24px 24px; color: var(--ink-2); font-size: 15.5px; line-height: 1.9; }
        .faq-body a { color: var(--accent); border-bottom: 1px dashed rgba(47, 143, 122, 0.4); }
        .faq-body a:hover { color: #1D5E4E; border-bottom-style: solid; }

        .cta-strip { background: var(--bg-deep-2); background-image: url('/assets/images/backpic/back-1.png'); background-size: cover; background-position: center 40%; position: relative; color: #fff; padding: 60px 0; border-radius: 28px; overflow: hidden; margin-top: 90px; }
        .cta-strip::after { content: ""; position: absolute; inset: 0; background: rgba(10, 17, 21, 0.85); }
        .cta-wrap { position: relative; z-index: 2; display: flex; justify-content: space-between; align-items: center; gap: 24px; flex-wrap: wrap; }
        .cta-left h2 { font-size: 26px; line-height: 1.4; margin-bottom: 10px; }
        .cta-left p { color: rgba(255,255,255,0.7); font-size: 15px; max-width: 480px; }
        .btn-primary { display: inline-block; background: var(--primary); color: #FFF; padding: 12px 30px; border-radius: var(--radius-btn); font-weight: 600; border: 1px solid transparent; transition: all 0.2s ease; box-shadow: 0 4px 12px rgba(225,89,43, 0.3); text-align: center; }
        .btn-primary:hover { background: var(--primary-hover); transform: translateY(-2px); box-shadow: 0 10px 20px rgba(225,89,43,0.32); }
        .btn-primary:active { transform: translateY(0); }
        .btn-secondary { display: inline-block; background: transparent; color: var(--ink); padding: 12px 28px; border-radius: var(--radius-btn); font-weight: 500; border: 1.5px solid var(--ink); text-align: center; transition: all 0.2s ease; }
        .btn-secondary:hover { border-color: var(--primary); color: var(--primary); background: rgba(225, 89, 43, 0.04); }
        .btn-on-dark { border-color: rgba(255,255,255,0.75); color: #fff; }
        .btn-on-dark:hover { background: rgba(255, 255, 255, 0.12); border-color: #FFF; color: #fff; }

        .site-footer { background: var(--bg-deep); color: rgba(255, 255, 255, 0.72); padding: 80px 0 36px; font-size: 15px; }
        .footer-container { display: grid; grid-template-columns: 2fr 1fr 1fr 1.2fr; gap: 48px; margin-bottom: 48px; }
        .footer-brand-txt { font-size: 27px; font-weight: 800; color: #FFFFFF; letter-spacing: 2px; margin-bottom: 18px; line-height: 1.3; }
        .footer-brand-desc { font-size: 14py; color: rgba(255,255,255,0.60); max-width: 320px; line-height: 1.9; letter-spacing: 0.3px; }
        .footer-domain { display: block; font-size: 12px; color: #8B9891; margin-top: 16px; letter-spacing: 0.5px; }
        .footer-col-title { font-size: 16px; font-weight: 600; color: #FFF; margin-bottom: 22px; }
        .footer-links { display: flex; flex-direction: column; align-items: flex-start; gap: 10px; }
        .footer-links a { color: rgba(255,255,255,0.6); font-size: 14.5px; transition: color 0.2s, padding-left 0.25s; }
        .footer-links a:hover { color: #F6B189; padding-left: 5px; }
        .footer-copy { border-top: 1px solid rgba(255,255,255,0.1); padding-top: 28px; display: flex; flex-wrap: wrap; gap: 12px; justify-content: space-between; font-size: 14px; color: rgba(255,255,255,0.5); }

        .dark-deco-line { height: 1px; width: 100%; background: linear-gradient(90deg, transparent, rgba(255,255,255,0.15), transparent); }
        .text-dark-bg { color: rgba(255,255,255,0.55); }

        @media (max-width: 1080px) {
            .nav-menu { display: flex; gap: 0; }
            .nav-link { padding: 8px 14px; font-size: 14px; }
            .search-box { display: none; }
            .footer-container { grid-template-columns: 1fr 1fr; gap: 36px; }
            .compare-grid { grid-template-columns: 1fr; }
        }
        @media (max-width: 900px) {
            .container { padding-left: 18px; padding-right: 18px; }
            .top-banner { padding: 90px 0 32px; }
            .banner-title { font-size: 33px; }
            .section-block { padding: 60px 0; }
            .section-title { font-size: 27px; }
        }
        @media (max-width: 764px) {
            .site-header { background: rgba(16,22,24,.28); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px); border-bottom: 1px solid rgba(255,255,255,0.08); }
            .menu-toggle { display: flex; }
            .nav-menu {
                position: fixed;
                top: 74px;
                right: 0;
                width: 80%;
                height: calc(100vh - 74px);
                max-width: 380px;
                background: #FDFCF7;
                box-shadow: -20px 0 40px rgba(0, 0, 0, 0.08);
                flex-direction: column;
                gap: 8px;
                padding: 36px 28px;
                transform: translateX(100%);
                transition: transform 0.3s ease;
                z-index: 60;
                border-left: 1px solid var(--line);
                border-top: none;
                border-radius: 0;
            }
            .site-header.scrolled .nav-menu { background: #FDFCF7; }
            .nav-menu.open { transform: translateX(0); }
            .nav-link, .site-header.scrolled .nav-link { color: var(--ink); font-size: 17px; padding: 12px 16px; border-radius: 12px; }
            .nav-link:hover { background: #F3E8DC; }
            .nav-link.active { background: #FDEEE5; color: var(--primary); box-shadow: none; }
            .header-cta { display: none; }
            .top-banner .banner-bg { background-position: 80% center; }
            .section-title-wrap { margin-bottom: 28px; }
            .flow-card { flex-direction: column; padding: 26px 22px; }
            .flow-card .step-badge { width: 44px; height: 44px; font-size: 20px; }
            .compare-card { padding: 22px 18px; }
            .footer-container { grid-template-columns: 1fr; gap: 32px; }
            .cta-strip { padding: 40px 20px; }
        }
        @media (max-width: 500px) {
            .banner-title { font-size: 28px; }
            .banner-description { font-size: 15px; }
            .btn-primary, .btn-secondary { width: 100%; display: block; margin-top: 8px; text-align: center; }
            .faq-item summary { padding: 18px 18px; font-size: 15px; }
            .faq-body { padding: 0 18px 20px; }
            .cta-wrap { flex-direction: column; align-items: flex-start; }
        }

/* roulang page: article */
:root {
            --primary: #E75B30;
            --primary-dark: #C84720;
            --teal: #177F73;
            --bg-canvas: #FAF9F6;
            --dark-bg: #11181C;
            --dark-bg2: #0C1215;
            --surface: #FFFFFF;
            --ink: #1F2623;
            --muted: #5F6B66;
            --border: #E4DFD5;
            --border-strong: #D4CDBF;
            --radius-btn: 8px;
            --radius-card: 16px;
            --radius-image: 20px;
            --shadow-card: 0 8px 24px rgba(17, 24, 21, .06);
            --shadow-hover: 0 16px 36px rgba(15, 23, 20, .14);
            --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", "Segoe UI", sans-serif;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            background: var(--bg-canvas);
            color: var(--ink);
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
        }

        img {
            display: block;
            max-width: 100%;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color .2s ease;
        }

        button,
        input,
        select,
        textarea {
            font: inherit;
        }

        .container {
            width: 100%;
            max-width: 1200px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        .container-wide {
            width: 100%;
            max-width: 1280px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        .section {
            padding-top: 88px;
            padding-bottom: 88px;
        }

        @media (max-width: 768px) {
            .section {
                padding-top: 50px;
                padding-bottom: 50px;
            }
        }

        .text-brand {
            color: var(--primary);
        }

        .text-brand:hover {
            color: var(--primary-dark);
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            padding: 12px 24px;
            border: 1.5px solid transparent;
            cursor: pointer;
            line-height: 1.2;
            transition: background .2s ease, border-color .2s ease, color .2s ease, box-shadow .2s ease, transform .2s ease;
        }

        .btn:focus-visible,
        .nav-toggle:focus-visible,
        .summary-action:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }

        .btn-primary {
            background: var(--primary);
            color: #fff;
        }

        .btn-primary:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 10px 20px rgba(231, 91, 48, .2);
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: none;
        }

        .btn-outline {
            background: transparent;
            border-color: var(--ink);
            color: var(--ink);
        }

        .btn-outline:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: rgba(231, 91, 48, .05);
        }

        .btn-light-outline {
            background: transparent;
            border-color: rgba(255, 255, 255, .75);
            color: #fff;
        }

        .btn-light-outline:hover {
            border-color: rgba(255, 255, 255, .95);
            background: rgba(255, 255, 255, .12);
            color: #fff;
        }

        .btn-sm {
            padding: 8px 16px;
            font-size: 14px;
        }

        .btn-lg {
            padding: 15px 30px;
            font-size: 17px;
        }

        .section-title-h2 {
            font-size: clamp(26px, 3.2vw, 34px);
            letter-spacing: -.02em;
            line-height: 1.28;
            font-weight: 700;
            margin-bottom: 14px;
        }

        .section-subtitle {
            font-size: 16px;
            color: var(--muted);
            line-height: 1.8;
        }

        .eyebrow {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            color: var(--teal);
            background: rgba(23, 127, 115, .1);
            border-radius: 999px;
            padding: 6px 14px;
            margin-bottom: 16px;
            letter-spacing: .02em;
        }

        /* ===== 导航 ===== */
        .site-header {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 80;
            background: rgba(16, 22, 24, .58);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid rgba(255, 255, 255, .12);
            transition: background .25s ease, box-shadow .25s ease, border-color .25s ease;
        }

        .site-header.scrolled {
            position: fixed;
            background: rgba(255, 255, 255, .96);
            box-shadow: 0 6px 20px rgba(17, 24, 21, .06);
            border-bottom: 1px solid #E7E1D8;
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: 70px;
            gap: 16px;
        }

        .cms-brand {
            display: inline-flex;
            flex-direction: column;
            line-height: 1.25;
            flex-shrink: 0;
        }

        .brand-name {
            font-size: 19px;
            font-weight: 800;
            color: #F3F0E8;
            letter-spacing: .01em;
            white-space: nowrap;
        }

        .brand-domain {
            font-size: 11px;
            color: #9AA3A0;
            letter-spacing: .02em;
            font-weight: 500;
        }

        .site-header.scrolled .brand-name {
            color: var(--ink);
        }

        .site-header.scrolled .brand-domain {
            color: #8A9490;
        }

        .nav-menu {
            display: flex;
            align-items: center;
            gap: 24px;
        }

        .nav-link {
            display: inline-block;
            font-size: 15px;
            font-weight: 500;
            color: rgba(243, 240, 232, .9);
            padding: 8px 2px;
            position: relative;
            transition: color .2s ease;
        }

        .nav-link::after {
            content: "";
            position: absolute;
            left: 0;
            bottom: 0;
            width: 100%;
            height: 2px;
            border-radius: 999px;
            background: var(--primary);
            transform: scaleX(0);
            transform-origin: left;
            transition: transform .2s ease;
        }

        .nav-link:hover::after,
        .nav-link.active::after {
            transform: scaleX(1);
        }

        .nav-link:hover,
        .nav-link.active {
            color: #fff;
        }

        .site-header.scrolled .nav-link {
            color: var(--ink);
        }

        .site-header.scrolled .nav-link:hover,
        .site-header.scrolled .nav-link.active {
            color: var(--primary);
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .search-field {
            display: flex;
            align-items: center;
            background: rgba(255, 255, 255, .13);
            border-radius: 40px;
            border: 1px solid rgba(255, 255, 255, .18);
            padding: 5px 6px 5px 14px;
            transition: border-color .2s ease, background .2s ease;
        }

        .search-field input {
            background: transparent;
            border: 0;
            outline: none;
            width: 120px;
            font-size: 13px;
            padding-right: 2px;
            color: rgba(243, 240, 232, .95);
        }

        .search-field input::placeholder {
            color: rgba(243, 240, 232, .6);
        }

        .search-field span {
            color: rgba(243, 240, 232, .85);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 28px;
            height: 28px;
            background: rgba(255, 255, 255, .12);
            border-radius: 50%;
            font-size: 13px;
        }

        .site-header.scrolled .search-field {
            background: #F4F1EB;
            border-color: #DFD9CF;
        }

        .site-header.scrolled .search-field input {
            color: var(--ink);
        }

        .site-header.scrolled .search-field input::placeholder {
            color: #9AA3A0;
        }

        .site-header.scrolled .search-field span {
            background: rgba(31, 38, 35, .08);
            color: var(--ink);
        }

        .nav-toggle {
            display: none;
            width: 40px;
            height: 40px;
            border-radius: 10px;
            background: rgba(255, 255, 255, .08);
            border: 1px solid rgba(255, 255, 255, .16);
            color: #fff;
            place-items: center;
            cursor: pointer;
            transition: background .2s ease, border-color .2s ease;
        }

        .site-header.scrolled .nav-toggle {
            color: var(--ink);
            background: #F1EEE7;
            border-color: #DFD9CF;
        }

        .nav-toggle svg {
            width: 22px;
            height: 22px;
        }

        .mobile-menu-mask {
            position: fixed;
            inset: 0;
            background: rgba(7, 10, 9, .55);
            z-index: 95;
            backdrop-filter: blur(3px);
            display: block;
            opacity: 0;
            visibility: hidden;
            transition: opacity .25s ease, visibility .25s ease;
        }

        .mobile-menu-mask.open {
            opacity: 1;
            visibility: visible;
        }

        @media (max-width: 1023.5px) {
            .site-header {
                position: fixed;
                background: rgba(16, 22, 24, .72);
            }

            .site-header .brand-name {
                color: #F3F0E8;
            }

            .nav-menu {
                position: fixed;
                top: 0;
                right: 0;
                bottom: 0;
                width: min(320px, 86vw);
                height: 100vh;
                background: #11181C;
                flex-direction: column;
                justify-content: flex-start;
                align-items: flex-start;
                padding: 72px 30px 40px;
                gap: 12px;
                box-shadow: -20px 0 48px rgba(0, 0, 0, .3);
                z-index: 100;
                transform: translateX(105%);
                transition: transform .28s cubic-bezier(.22, .61, .36, 1);
            }

            .nav-menu.open {
                transform: translateX(0);
            }

            .nav-link {
                color: #F3F0E8;
                font-size: 20px;
                width: 100%;
                padding: 14px 2px;
                border-bottom: 1px solid rgba(255, 255, 255, .08);
            }

            .nav-toggle {
                display: inline-flex;
            }
        }

        @media (max-width: 640px) {
            .search-field {
                display: none;
            }

            .header-inner {
                min-height: 62px;
            }

            .brand-name {
                font-size: 16px;
            }
        }

        /* 顶部遮罩深色视觉区 */
        .article-hero {
            position: relative;
            min-height: 420px;
            display: flex;
            align-items: flex-end;
            background: url("/assets/images/backpic/back-1.png") center / cover no-repeat, var(--dark-bg2);
            background-blend-mode: luminosity;
            padding-top: 160px;
            padding-bottom: 64px;
            overflow: hidden;
        }

        .article-hero::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(8, 12, 13, .48), rgba(8, 12, 13, .78) 92%);
            z-index: 1;
        }

        .article-hero > .container {
            position: relative;
            z-index: 2;
        }

        .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: rgba(243, 240, 232, .8);
            margin-bottom: 18px;
        }

        .breadcrumb a {
            color: rgba(243, 240, 232, .8);
            border-bottom: 1px solid transparent;
            transition: color .2s ease, border-color .2s ease;
        }

        .breadcrumb a:hover {
            color: #fff;
            border-color: rgba(255, 255, 255, .6);
        }

        .breadcrumb .sep {
            opacity: .6;
        }

        .breadcrumb .current {
            color: #fff;
            font-weight: 600;
            max-width: 260px;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
            display: inline-block;
            vertical-align: bottom;
        }

        .article-hero .page-headline {
            font-size: clamp(28px, 5vw, 48px);
            line-height: 1.25;
            color: #fff;
            font-weight: 700;
            max-width: 920px;
            letter-spacing: -.02em;
            margin-bottom: 22px;
        }

        .article-hero .error-headline {
            font-size: clamp(30px, 5vw, 48px);
            color: #fff;
            font-weight: 700;
        }

        .meta-row {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 12px;
            color: rgba(243, 240, 232, .9);
            font-size: 13px;
        }

        .chip {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(255, 255, 255, .12);
            border: 1px solid rgba(255, 255, 255, .2);
            border-radius: 999px;
            padding: 5px 14px;
            font-weight: 500;
            color: #fff;
        }

        .chip-category {
            background: rgba(23, 127, 115, .35);
            border-color: rgba(255, 255, 255, .2);
        }

        /* 正文结构 */
        .article-presentation {
            padding-top: 48px;
            padding-bottom: 64px;
        }

        .article-grid {
            display: grid;
            grid-template-columns: minmax(0, 1fr) 300px;
            gap: 56px;
            align-items: start;
        }

        @media (max-width: 1023.98px) {
            .article-grid {
                grid-template-columns: 1fr;
            }
        }

        .article-main {
            min-width: 0;
        }

        .article-panel {
            background: transparent;
            border-radius: var(--radius-image);
            overflow: hidden;
        }

        .entry-content {
            background: #fff;
            border-radius: var(--radius-image);
            padding: clamp(20px, 5vw, 64px);
            box-shadow: var(--shadow-card);
            border: 1px solid rgba(228, 223, 213, .6);
            font-size: 16.5px;
            line-height: 1.95;
            color: var(--ink);
            word-break: break-word;
        }

        .entry-content p {
            margin-bottom: 1.5em;
        }

        .entry-content h2 {
            font-size: 26px;
            line-height: 1.4;
            margin: 1.8em 0 .7em;
            padding-bottom: .35em;
            border-bottom: 2px solid #EFE9DE;
            letter-spacing: -.01em;
        }

        .entry-content h3 {
            font-size: 20px;
            line-height: 1.5;
            margin: 1.65em 0 .45em;
            color: #12201C;
        }

        .entry-content h4 {
            font-size: 17px;
            margin: 1.4em 0 .4em;
        }

        .entry-content ul,
        .entry-content ol {
            margin: 0 0 1.6em 1.5em;
        }

        .entry-content li {
            margin-bottom: .58em;
        }

        .entry-content ul li {
            list-style: disc;
        }

        .entry-content ol li {
            list-style: decimal;
        }

        .entry-content blockquote {
            margin: 2em 0;
            padding: 22px 26px;
            background: #F9F6F0;
            border-left: 5px solid var(--primary);
            border-radius: 0 14px 14px 0;
            color: #3C4743;
        }

        .entry-content blockquote p:last-child {
            margin-bottom: 0;
        }

        .entry-content img {
            border-radius: 14px;
            width: auto;
            height: auto;
            margin: 1.8em 0;
        }

        .entry-content figcaption,
        .entry-content .wp-caption-text {
            font-size: 12px;
            color: var(--muted);
            text-align: center;
            margin-top: -1.4em;
            margin-bottom: 2em;
        }

        .entry-content a:not([class]) {
            color: var(--primary);
            text-decoration: underline;
            text-decoration-color: rgba(231, 91, 48, .35);
            text-underline-offset: 4px;
        }

        .entry-content a:not([class]):hover {
            color: var(--primary-dark);
            text-decoration-color: currentColor;
        }

        .entry-content code {
            background: #F0EDE6;
            border-radius: 6px;
            padding: 2px 8px;
            font-size: .88em;
            color: #0E4C42;
        }

        .entry-content table {
            width: 100%;
            border-collapse: collapse;
            margin: 1.8em 0;
            font-size: 15px;
        }

        .entry-content th {
            background: #F2EFE9;
            text-align: left;
            border: 1px solid #E6E0D5;
            padding: 10px 14px;
            font-weight: 600;
        }

        .entry-content td {
            border: 1px solid #E6E0D5;
            padding: 10px 14px;
        }

        .not-found-content {
            text-align: center;
            padding: 90px 20px;
            background: #fff;
            border-radius: var(--radius-image);
            box-shadow: var(--shadow-card);
            border: 1px solid rgba(228, 223, 213, .5);
        }

        .not-found-content .icon-circle {
            width: 72px;
            height: 72px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 20px;
            background: rgba(231, 91, 48, .1);
            color: var(--primary);
            border-radius: 50%;
            font-size: 32px;
        }

        .not-found-content h2 {
            margin-bottom: 10px;
            font-size: 26px;
        }

        .not-found-content p {
            color: var(--muted);
            margin-bottom: 26px;
        }

        /* 内容页侧栏 */
        .article-aside {
            display: flex;
            flex-direction: column;
            gap: 22px;
            position: sticky;
            top: 96px;
        }

        @media (max-width: 1023.98px) {
            .article-aside {
                position: static;
                margin-top: 12px;
                display: grid;
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 640px) {
            .article-aside {
                grid-template-columns: 1fr;
            }
        }

        .aside-card {
            background: #fff;
            border-radius: 18px;
            border: 1px solid rgba(228, 223, 213, .7);
            padding: 24px 22px;
            box-shadow: 0 4px 14px rgba(17, 24, 21, .03);
        }

        .aside-title {
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 18px;
            position: relative;
            padding-left: 14px;
        }

        .aside-title::before {
            content: "";
            position: absolute;
            left: 0;
            top: .24em;
            width: 4px;
            height: 1.2em;
            border-radius: 8px;
            background: var(--primary);
        }

        .aside-links {
            display: flex;
            flex-direction: column;
            gap: 4px;
        }

        .aside-links a {
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            padding: 10px 2px;
            border-bottom: 1px dashed #ECE7DE;
            color: #3A4541;
            font-size: 14px;
            transition: background .2s ease, color .2s ease, padding-left .2s ease;
        }

        .aside-links a:hover {
            color: var(--primary);
            background: rgba(231, 91, 48, .04);
            padding-left: 8px;
        }

        .aside-links a:last-child {
            border-bottom: none;
        }

        .aside-links small {
            font-size: 12px;
            color: #9CA4A0;
            flex-shrink: 0;
        }

        .aside-tip {
            color: var(--muted);
            font-size: 13px;
            line-height: 1.7;
        }

        .aside-tip strong {
            color: var(--ink);
            display: block;
            margin-bottom: 6px;
        }

        /* 相关推荐 */
        .related-posts {
            margin-top: 44px;
        }

        .related-head {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            margin-bottom: 24px;
        }

        .related-head h2 {
            font-size: 22px;
            font-weight: 700;
        }

        .related-link {
            font-size: 14px;
            color: var(--teal);
        }

        .related-link:hover {
            color: var(--primary);
        }

        .related-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
        }

        @media (max-width: 640px) {
            .related-grid {
                grid-template-columns: 1fr;
            }
        }

        .related-card {
            display: flex;
            gap: 16px;
            background: #fff;
            border-radius: 16px;
            padding: 14px;
            border: 1px solid #E8E3DA;
            transition: box-shadow .2s ease, transform .2s ease, border-color .2s ease;
        }

        .related-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
            border-color: #E3C1B3;
        }

        .related-thumb {
            width: 132px;
            flex-shrink: 0;
            aspect-ratio: 16 / 10;
            border-radius: 12px;
            object-fit: cover;
            background: #E2DDD3;
        }

        .related-card-body {
            min-width: 0;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }

        .related-card-body h3 {
            font-size: 15px;
            line-height: 1.55;
            margin: 8px 0 8px;
            font-weight: 600;
            letter-spacing: -.01em;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .related-tag {
            font-size: 12px;
            color: var(--teal);
            font-weight: 600;
        }

        @media (max-width: 540px) {
            .related-card {
                flex-direction: column;
            }

            .related-thumb {
                width: 100%;
                aspect-ratio: 16 / 9;
            }
        }

        /* FAQ */
        .faq-section {
            padding-top: 72px;
            padding-bottom: 72px;
            background: #F1EEE7;
        }

        .faq-wrap {
            display: grid;
            grid-template-columns: 1.05fr .95fr;
            gap: 60px;
            align-items: start;
        }

        @media (max-width: 1023.98px) {
            .faq-wrap {
                grid-template-columns: 1fr;
                gap: 36px;
            }
        }

        details.article-detail {
            background: #fff;
            border-radius: 14px;
            border: 1px solid #EAE5DC;
            padding: 0;
            margin-bottom: 14px;
            overflow: hidden;
            transition: box-shadow .2s ease;
        }

        details.article-detail[open] {
            border-color: rgba(231, 91, 48, .4);
            box-shadow: 0 6px 18px rgba(31, 38, 35, .06);
        }

        details.article-detail summary {
            list-style: none;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 18px;
            padding: 18px 22px;
            font-size: 16px;
            font-weight: 600;
            line-height: 1.5;
            position: relative;
        }

        details.article-detail summary::-webkit-details-marker {
            display: none;
        }

        details.article-detail summary .faq-arrow {
            width: 26px;
            height: 26px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: #F0ECE4;
            border-radius: 50%;
            flex-shrink: 0;
            color: #5F6B66;
            transition: transform .25s ease, background .25s ease, color .25s ease;
        }

        details.article-detail[open] summary .faq-arrow {
            transform: rotate(45deg);
            background: rgba(231, 91, 48, .16);
            color: var(--primary);
        }

        details.article-detail .faq-content {
            padding: 0 22px 22px;
            color: var(--muted);
            font-size: 15px;
            line-height: 1.85;
        }

        /* CTA strip */
        .cta-strip {
            background: var(--dark-bg);
            background-image: linear-gradient(120deg, rgba(231, 91, 48, .12), transparent 36%),
                url("/assets/images/backpic/back-2.webp");
            background-size: cover;
            background-position: center;
            background-blend-mode: overlay;
            position: relative;
            overflow: hidden;
        }

        .cta-strip::before {
            content: "";
            position: absolute;
            inset: 0;
            background: rgba(12, 18, 21, .6);
        }

        .cta-strip .container {
            position: relative;
            z-index: 2;
            padding-top: 90px;
            padding-bottom: 90px;
            text-align: center;
        }

        .cta-strip h2 {
            color: #fff;
            font-size: clamp(24px, 3.4vw, 36px);
            font-weight: 700;
            letter-spacing: -.02em;
            line-height: 1.35;
            margin-bottom: 12px;
        }

        .cta-strip p {
            color: rgba(243, 240, 232, .7);
            max-width: 650px;
            margin: 0 auto 28px;
            font-size: 16px;
        }

        /* footer */
        .site-footer {
            background: #0C1215;
            color: #A7AFAB;
            font-size: 14px;
            padding-top: 64px;
        }

        .footer-container {
            display: grid;
            grid-template-columns: 1.4fr .8fr .8fr .8fr;
            gap: 44px;
            padding-bottom: 48px;
            border-bottom: 1px solid rgba(255, 255, 255, .08);
        }

        @media (max-width: 1023.98px) {
            .footer-container {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 560px) {
            .footer-container {
                grid-template-columns: 1fr;
                gap: 28px;
            }
        }

        .footer-brand-txt {
            color: #F3F0E8;
            font-size: 20px;
            font-weight: 800;
            margin-bottom: 8px;
            letter-spacing: .01em;
        }

        .footer-brand-desc {
            max-width: 420px;
            line-height: 1.75;
            margin-bottom: 12px;
            color: #9AA3A0;
        }

        .footer-domain {
            display: inline-block;
            font-size: 12px;
            color: #5F8580;
            background: rgba(255, 255, 255, .05);
            border-radius: 6px;
            padding: 3px 8px;
            letter-spacing: .04em;
            font-family: ui-monospace, SFMono-Regular, monospace;
        }

        .footer-col-title {
            color: #E5E0D6;
            font-weight: 600;
            font-size: 15px;
            margin-bottom: 16px;
        }

        .footer-links {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .footer-links a {
            color: #9AA3A0;
            transition: color .2s ease, padding-left .2s ease;
        }

        .footer-links a:hover {
            color: var(--primary);
            padding-left: 5px;
        }

        .footer-copy {
            padding-top: 22px;
            padding-bottom: 28px;
            font-size: 13px;
            color: #6D7772;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        /* 空态 */
        .empty-state {
            text-align: center;
            padding: 56px 20px;
            background: #F4F0E9;
            border-radius: 18px;
            font-size: 14px;
            color: var(--muted);
            line-height: 1.8;
        }

        /* 弹层 */
        .modal-mask {
            position: fixed;
            inset: 0;
            background: rgba(7, 10, 9, .65);
            backdrop-filter: blur(5px);
            z-index: 120;
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 20px;
            opacity: 0;
            visibility: hidden;
            transition: opacity .25s ease, visibility .25s ease;
        }

        .modal-mask.open {
            opacity: 1;
            visibility: visible;
        }

        .modal-panel {
            width: min(600px, 100%);
            max-height: 90vh;
            overflow-y: auto;
            background: #fff;
            border-radius: 16px;
            box-shadow: 0 26px 60px rgba(0, 0, 0, .3);
            padding: 36px 34px 30px;
            position: relative;
        }

        .modal-head {
            display: flex;
            justify-content: space-between;
            gap: 16px;
            align-items: flex-start;
            margin-bottom: 24px;
        }

        .modal-head h3 {
            font-size: 22px;
            font-weight: 700;
            line-height: 1.4;
        }

        .modal-close {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: #EEE5DC;
            color: #404B47;
            border: 0;
            cursor: pointer;
            font-size: 20px;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: background .2s ease, color .2s ease;
        }

        .modal-close:hover {
            background: rgba(231, 91, 48, .16);
            color: var(--primary);
        }

        .form-group {
            margin-bottom: 18px;
        }

        .form-label {
            display: block;
            font-size: 14px;
            color: var(--ink);
            margin-bottom: 7px;
            font-weight: 600;
        }

        .form-control {
            width: 100%;
            background: #fff;
            border: 1.5px solid #D8D1C5;
            border-radius: 10px;
            height: 46px;
            padding: 0 14px;
            transition: border-color .2s ease, box-shadow .2s ease;
            color: var(--ink);
        }

        .form-control:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(231, 91, 48, .15);
        }

        .privacy-check {
            display: flex;
            align-items: flex-start;
            gap: 8px;
            margin-bottom: 20px;
        }

        .privacy-check input {
            width: 18px;
            height: 18px;
            margin-top: 4px;
            accent-color: var(--primary);
        }

        .privacy-check label {
            font-size: 13px;
            color: var(--muted);
        }

        .modal-footnote {
            font-size: 12px;
            color: #8A948F;
            margin-top: 14px;
            line-height: 1.6;
        }

        .modal-footnote a {
            color: var(--teal);
        }

        .toast-tip {
            display: none;
            margin-top: 14px;
            background: #E9F6F2;
            border-radius: 10px;
            padding: 10px 14px;
            color: #0F5A4B;
            font-size: 13px;
            line-height: 1.6;
        }

        .toast-tip.show {
            display: block;
        }

        /* 图片降级 */
        .img-fallback {
            background: linear-gradient(135deg, #1D2A27, #0F171A);
            min-height: 180px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: rgba(255, 255, 255, .75);
            border-radius: 14px;
        }

        @media (max-width: 520px) {
            .article-hero {
                padding-top: 120px;
                min-height: 350px;
            }

            .breadcrumb .current {
                max-width: 150px;
            }

            .entry-content {
                padding: 28px 20px;
                font-size: 17px;
                line-height: 1.95;
            }
        }

/* roulang page: category2 */
:root {
            --primary: #D95726;
            --primary-hover: #B84219;
            --primary-soft: rgba(217, 87, 38, .1);
            --teal: #19796E;
            --teal-soft: rgba(25, 121, 110, .1);
            --bg: #FAF9F6;
            --card: #FFFFFF;
            --ink: #1F2623;
            --muted: #5F6B66;
            --line: #E4DFD5;
            --dark: #11181C;
            --dark-2: #0C1215;
            --reverse: #F3F0E8;
            --radius: 16px;
            --radius-lg: 20px;
            --shadow: 0 8px 24px rgba(17, 24, 21, .06);
            --shadow-hover: 0 16px 36px rgba(15, 23, 20, .14);
            --transition: all .18s ease;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            margin: 0;
            font-family: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans CJK SC', system-ui, sans-serif;
            background: var(--bg);
            color: var(--ink);
            line-height: 1.75;
            font-size: 15px;
        }
        img {
            max-width: 100%;
            display: block;
        }
        a {
            color: inherit;
            text-decoration: none;
        }
        button {
            font-family: inherit;
            cursor: pointer;
        }
        input,
        select {
            font-family: inherit;
            font-size: inherit;
        }
        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        select:focus-visible,
        summary:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 3px;
            border-radius: 4px;
        }
        .content-wrap {
            width: min(1200px, 100% - 48px);
            margin-inline: auto;
        }

        /* ===== Header ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 100;
            will-change: background;
            border-bottom: 1px solid transparent;
            transition: background .2s ease, border-color .2s ease, box-shadow .2s ease;
        }
        .site-header:not(.scrolled) {
            background: rgba(16, 22, 24, .58);
            border-bottom-color: rgba(255, 255, 255, .14);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
        }
        .site-header.scrolled {
            background: #fff;
            border-bottom-color: #E7E1D8;
            box-shadow: 0 10px 30px rgba(17, 24, 21, .08);
        }
        .header-inner {
            display: flex;
            align-items: center;
            height: 76px;
            gap: 26px;
            position: relative;
        }
        .brand {
            display: flex;
            flex-direction: column;
            line-height: 1.2;
            gap: 1px;
            flex-shrink: 0;
        }
        .brand-main {
            font-size: 21px;
            font-weight: 800;
            letter-spacing: .02em;
        }
        .brand-domain {
            font-size: 11px;
            letter-spacing: .08em;
            opacity: .72;
        }
        .site-header:not(.scrolled) .brand-main,
        .site-header:not(.scrolled) .nav-link {
            color: var(--reverse);
        }
        .site-header:not(.scrolled) .brand-domain {
            color: #A9B0AC;
        }
        .site-header.scrolled .brand-main,
        .site-header.scrolled .nav-link {
            color: var(--ink);
        }
        .site-header.scrolled .brand-domain {
            color: var(--muted);
        }
        .nav-menu {
            display: flex;
            align-items: center;
            gap: 2px;
            margin-left: auto;
        }
        .nav-link {
            position: relative;
            display: inline-flex;
            align-items: center;
            padding: 8px 12px;
            border-radius: 8px;
            font-size: 15px;
            font-weight: 500;
            transition: color .18s ease, background .18s ease;
            white-space: nowrap;
        }
        .site-header:not(.scrolled) .nav-link:hover {
            color: #fff;
            background: rgba(255, 255, 255, .1);
        }
        .site-header.scrolled .nav-link:hover {
            color: var(--primary);
            background: rgba(217, 87, 38, .06);
        }
        .nav-link.active {
            font-weight: 600;
        }
        .site-header:not(.scrolled) .nav-link.active::after,
        .site-header:not(.scrolled) .nav-link.active::before {
            content: '';
            position: absolute;
            left: 12px;
            right: 12px;
            bottom: 4px;
            height: 2px;
            border-radius: 2px;
            background: var(--reverse);
            opacity: .85;
        }
        .site-header.scrolled .nav-link.active::after,
        .site-header.scrolled .nav-link.active::before {
            content: '';
            position: absolute;
            left: 12px;
            right: 12px;
            bottom: 4px;
            height: 2px;
            border-radius: 2px;
            background: var(--primary);
        }
        .header-actions {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .header-search {
            display: flex;
            align-items: center;
            gap: 8px;
            height: 40px;
            padding: 0 14px;
            border-radius: 40px;
            background: transparent;
            border: 1px solid transparent;
            transition: var(--transition);
            width: 190px;
        }
        .site-header:not(.scrolled) .header-search {
            background: rgba(255, 255, 255, .1);
            border-color: rgba(255, 255, 255, .16);
        }
        .site-header:not(.scrolled) .header-search i {
            color: #BCC3BF;
        }
        .site-header.scrolled .header-search {
            background: #F5F2EC;
            border-color: #E4DFD5;
        }
        .header-search i {
            color: #8B9290;
        }
        .header-search input {
            border: none;
            outline: none;
            background: transparent;
            color: inherit;
            width: 100%;
            font-size: 13px;
        }
        .header-search input::placeholder {
            color: #AAB1AE;
        }
        .header-search:focus-within {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(217, 87, 38, .16);
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            border: 1.5px solid transparent;
            border-radius: 8px;
            padding: 10px 18px;
            font-size: 15px;
            font-weight: 500;
            transition: var(--transition);
            white-space: nowrap;
            line-height: 1.4;
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
        }
        .btn-primary:hover {
            background: var(--primary-hover);
            transform: translateY(-2px);
            box-shadow: 0 10px 18px rgba(217, 87, 38, .2);
        }
        .btn-primary:active {
            transform: translateY(0);
            box-shadow: none;
        }
        .btn-outline-dark {
            background: transparent;
            border-color: var(--ink);
            color: var(--ink);
        }
        .btn-outline-dark:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: rgba(217, 87, 38, .04);
        }
        .btn-ghost-light {
            background: transparent;
            border-color: rgba(255, 255, 255, .78);
            color: var(--reverse);
        }
        .btn-ghost-light:hover {
            background: rgba(255, 255, 255, .12);
            border-color: #fff;
            color: #fff;
        }
        .header-cta {
            padding: 9px 18px;
            font-size: 14px;
        }
        .nav-toggle {
            display: none;
            width: 42px;
            height: 42px;
            align-items: center;
            justify-content: center;
            background: transparent;
            border: 1px solid rgba(255, 255, 255, .28);
            border-radius: 10px;
            color: var(--reverse);
            font-size: 18px;
        }
        .site-header.scrolled .nav-toggle {
            border-color: #D9D2C8;
            color: var(--ink);
        }
        .mobile-drawer {
            display: none;
            background: #0E1417;
            border-top: 1px solid rgba(255, 255, 255, .12);
            padding: 20px 0 26px;
            max-height: calc(100vh - 76px);
            overflow-y: auto;
        }
        .mobile-drawer.open {
            display: block;
        }
        .mobile-drawer .nav-menu {
            flex-direction: column;
            margin-left: 0;
            gap: 4px;
            width: 100%;
        }
        .mobile-drawer .nav-link {
            display: block;
            width: 100%;
            color: var(--reverse);
            padding: 12px 4px;
            font-size: 16px;
        }
        .mobile-drawer .nav-link.active {
            color: #FFB66D;
        }
        .mobile-drawer .nav-link.active::after,
        .mobile-drawer .nav-link.active::before,
        .mobile-drawer .nav-link.active::before,
        .mobile-drawer .nav-link.active::after {
            display: none;
        }
        .mobile-drawer .header-search {
            width: 100%;
            margin-top: 16px;
            background: rgba(255, 255, 255, .1);
            border-color: rgba(255, 255, 255, .14);
        }
        .mobile-drawer .btn {
            margin-top: 16px;
            width: 100%;
        }

        /* ===== Page Hero ===== */
        .page-hero {
            position: relative;
            min-height: 420px;
            display: flex;
            align-items: center;
            padding: 140px 0 82px;
            overflow: hidden;
            background: var(--dark-2);
        }
        .page-hero-bg {
            position: absolute;
            inset: 0;
            background-position: center 28%;
            background-size: cover;
            transform: scale(1.02);
        }
        .page-hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(100deg, rgba(8, 12, 14, .72) 0%, rgba(10, 17, 19, .5) 52%, rgba(15, 24, 26, .62) 100%);
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 10px;
            font-size: 13px;
            color: rgba(255, 255, 255, .72);
        }
        .breadcrumb a {
            color: #CBD2CF;
            transition: color .2s;
        }
        .breadcrumb a:hover {
            color: #fff;
        }
        .bc-divider {
            width: 14px;
            height: 1px;
            background: rgba(255, 255, 255, .45);
            display: inline-block;
        }
        .hero-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, .1);
            border: 1px solid rgba(255, 255, 255, .16);
            color: #F3F0E8;
            padding: 5px 12px;
            border-radius: 30px;
            font-size: 12px;
            margin-top: 24px;
        }
        .hero-tag::before {
            content: '';
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: #FF9D5C;
        }
        .page-hero h1 {
            color: #fff;
            font-size: clamp(28px, 4vw, 46px);
            line-height: 1.25;
            font-weight: 700;
            margin: 16px 0 0;
            max-width: 760px;
            letter-spacing: .01em;
        }
        .page-hero .hero-lead {
            color: rgba(255, 255, 255, .85);
            font-size: 16px;
            margin-top: 18px;
            max-width: 760px;
            line-height: 1.9;
        }
        .hero-cta {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            margin-top: 32px;
        }
        .hero-float-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 34px;
        }
        .float-tag {
            background: rgba(255, 255, 255, .1);
            color: rgba(255, 255, 255, .88);
            font-size: 12px;
            border-radius: 30px;
            padding: 4px 13px;
            border: 1px solid rgba(255, 255, 255, .12);
        }

        /* ===== Sections ===== */
        .section {
            padding: 88px 0;
        }
        .section-bg-light {
            background: var(--bg);
        }
        .section-bg-card {
            background: #F4F0E9;
        }
        .section-head {
            display: flex;
            flex-direction: column;
            margin-bottom: 46px;
            max-width: 800px;
        }
        .section-kicker {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            color: var(--teal);
            background: var(--teal-soft);
            border-radius: 30px;
            padding: 5px 13px;
            font-weight: 500;
            width: max-content;
            margin-bottom: 18px;
        }
        .section-head h2 {
            font-size: clamp(25px, 3.2vw, 34px);
            line-height: 1.32;
            font-weight: 700;
            margin: 0;
            letter-spacing: -.01em;
        }
        .section-head p {
            color: var(--muted);
            margin-top: 14px;
            font-size: 16px;
            line-height: 1.9;
            max-width: 700px;
        }

        /* ===== Guide steps ===== */
        .guide-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 28px;
        }
        .step-card {
            position: relative;
            background: #fff;
            border-radius: var(--radius);
            padding: 40px 34px 34px;
            box-shadow: var(--shadow);
            border: 1px solid rgba(228, 223, 213, .72);
            transition: var(--transition);
        }
        .step-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
        }
        .step-card.wide {
            grid-column: 1 / -1;
            display: grid;
            grid-template-columns: 64px 1fr auto;
            align-items: start;
            gap: 22px;
        }
        .step-no {
            position: absolute;
            top: 26px;
            right: 28px;
            font-size: 13px;
            color: var(--teal);
            background: var(--teal-soft);
            border-radius: 30px;
            padding: 3px 12px;
            font-weight: 600;
        }
        .step-icon {
            width: 48px;
            height: 48px;
            border-radius: 14px;
            background: var(--primary-soft);
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            margin-bottom: 18px;
        }
        .step-card h3 {
            font-size: 20px;
            margin: 0 0 10px;
            font-weight: 700;
            padding-right: 16px;
        }
        .step-card p {
            color: var(--muted);
            font-size: 15px;
            line-height: 1.85;
            margin: 0;
        }
        .step-tip {
            margin-top: 18px;
            background: #F7F4EE;
            border-radius: 10px;
            padding: 10px 14px;
            font-size: 13px;
            color: #4A5752;
            display: flex;
            gap: 8px;
            align-items: flex-start;
        }
        .step-tip i {
            color: var(--teal);
            margin-top: 3px;
        }

        /* ===== Compat cards ===== */
        .compat-columns {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 28px;
        }
        .compat-card {
            background: #fff;
            border-radius: var(--radius);
            border: 1px solid rgba(228, 223, 213, .72);
            box-shadow: var(--shadow);
            overflow: hidden;
            transition: var(--transition);
        }
        .compat-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }
        .compat-top {
            padding: 26px 28px 12px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
        }
        .compat-title {
            font-size: 20px;
            font-weight: 700;
            margin: 0;
        }
        .compat-desc {
            color: var(--muted);
            font-size: 14px;
            margin-top: 6px;
        }
        .compat-pill {
            background: var(--teal-soft);
            color: var(--teal);
            font-size: 12px;
            border-radius: 30px;
            padding: 4px 11px;
            white-space: nowrap;
            font-weight: 500;
        }
        .compat-list {
            list-style: none;
            margin: 0;
            padding: 14px 28px 24px;
        }
        .compat-list li {
            display: flex;
            gap: 12px;
            align-items: flex-start;
            padding: 13px 0;
            border-bottom: 1px dashed #E8E2D8;
            font-size: 14px;
            color: #3A4641;
        }
        .compat-list li:last-child {
            border-bottom: 0;
        }
        .compat-list i {
            color: var(--primary);
            margin-top: 5px;
            width: 14px;
            text-align: center;
        }

        /* ===== Browser preview ===== */
        .window-wrap {
            margin-top: 60px;
        }
        .window-card {
            background: #0E1417;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: 0 24px 60px rgba(0, 0, 0, .14);
            display: grid;
            grid-template-columns: 1.04fr .96fr;
        }
        .window-visual {
            background: #1A2328;
            padding: 32px;
            display: flex;
            flex-direction: column;
            justify-content: center;
            position: relative;
        }
        .browser-top {
            background: rgba(255, 255, 255, .05);
            border-radius: 10px;
            border: 1px solid rgba(255, 255, 255, .12);
            padding: 12px 16px;
            display: flex;
            gap: 12px;
            align-items: center;
        }
        .browser-dots {
            display: flex;
            gap: 5px;
        }
        .browser-dots span {
            width: 9px;
            height: 9px;
            border-radius: 50%;
            background: rgba(255, 255, 255, .3);
        }
        .browser-dots span:first-child {
            background: #E56B43;
        }
        .browser-dots span:nth-child(2) {
            background: #E3BA5A;
        }
        .browser-dots span:last-child {
            background: #59A67F;
        }
        .browser-addr {
            flex: 1;
            background: rgba(255, 255, 255, .1);
            border-radius: 20px;
            height: 28px;
            color: rgba(255, 255, 255, .55);
            font-size: 12px;
            display: flex;
            align-items: center;
            padding: 0 14px;
            letter-spacing: .06em;
        }
        .browser-body {
            margin-top: 18px;
            background: linear-gradient(140deg, #182329, #0E1618);
            border-radius: 10px;
            padding: 18px;
        }
        .fake-row {
            height: 12px;
            border-radius: 6px;
            background: rgba(255, 255, 255, .09);
            margin-bottom: 10px;
        }
        .fake-row.short {
            width: 66%;
        }
        .fake-thumb {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 10px;
            margin-top: 14px;
        }
        .fake-thumb i {
            background: rgba(255, 255, 255, .08);
            height: 70px;
            border-radius: 8px;
        }
        .window-content {
            background: #fff;
            padding: 34px 36px;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }
        .window-content .kicker-small {
            font-size: 13px;
            color: var(--teal);
            font-weight: 600;
            margin-bottom: 8px;
        }
        .window-content h3 {
            font-size: 23px;
            font-weight: 700;
            margin: 0 0 12px;
            line-height: 1.4;
        }
        .window-content p {
            color: var(--muted);
            font-size: 15px;
            line-height: 1.9;
            margin: 0;
        }
        .window-note {
            margin-top: 22px;
            background: #F7F4EE;
            border-radius: 12px;
            padding: 12px 15px;
            color: #4A5752;
            font-size: 13px;
            display: flex;
            gap: 10px;
        }
        .window-note i {
            color: var(--primary);
        }

        /* ===== News / CMS ===== */
        .news-head {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            gap: 20px;
            margin-bottom: 36px;
        }
        .news-head .section-kicker {
            margin-bottom: 12px;
        }
        .news-head h2 {
            margin: 0;
            font-size: clamp(24px, 3vw, 32px);
            font-weight: 700;
        }
        .more-link {
            display: inline-flex;
            align-items: center;
            gap: 9px;
            color: var(--muted);
            font-size: 14px;
            font-weight: 600;
            transition: var(--transition);
            white-space: nowrap;
            margin-bottom: 6px;
        }
        .more-link:hover {
            color: var(--primary);
            gap: 13px;
        }
        .news-cards-3 {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 26px;
        }
        .news-card {
            border-radius: var(--radius);
            overflow: hidden;
            background: #fff;
            box-shadow: var(--shadow);
            border: 1px solid rgba(228, 223, 213, .72);
            display: flex;
            flex-direction: column;
            transition: var(--transition);
        }
        .news-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
        }
        .news-cover {
            position: relative;
            aspect-ratio: 16 / 9;
            overflow: hidden;
            background: #E6E1D8;
        }
        .news-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .3s;
        }
        .news-card:hover .news-cover img {
            transform: scale(1.04);
        }
        .news-meta-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 16px 22px 0;
        }
        .news-badge {
            background: var(--teal-soft);
            color: var(--teal);
            border-radius: 20px;
            font-size: 12px;
            padding: 3px 11px;
        }
        .news-time {
            color: #9AA39F;
            font-size: 12px;
        }
        .news-title {
            display: block;
            padding: 12px 22px 0;
            font-size: 18px;
            font-weight: 700;
            line-height: 1.55;
            color: var(--ink);
            transition: color .18s;
        }
        .news-card:hover .news-title {
            color: var(--primary);
        }
        .news-excerpt {
            padding: 10px 22px 0;
            color: var(--muted);
            overflow: hidden;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            font-size: 14px;
            line-height: 1.75;
        }
        .news-link {
            margin-top: auto;
            padding: 18px 22px;
            font-size: 14px;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-weight: 500;
        }
        .news-link i {
            transition: transform .18s;
        }
        .news-link:hover i {
            transform: translateX(4px);
        }

        /* ===== CTA band ===== */
        .cta-band {
            background: linear-gradient(110deg, #0C1215 0%, #151D21 62%, #253034 100%);
            border-radius: var(--radius-lg);
            overflow: hidden;
            display: grid;
            grid-template-columns: 1.2fr .8fr;
            box-shadow: 0 24px 60px rgba(8, 12, 14, .25);
        }
        .cta-content {
            padding: 44px 46px;
            color: #F3F0E8;
        }
        .cta-content h2 {
            font-size: clamp(22px, 2.6vw, 30px);
            line-height: 1.4;
            font-weight: 700;
            margin: 0;
        }
        .cta-content p {
            color: rgba(255, 255, 255, .7);
            margin-top: 14px;
            font-size: 15px;
            line-height: 1.85;
            max-width: 560px;
        }
        .cta-btns {
            display: flex;
            gap: 14px;
            margin-top: 28px;
            flex-wrap: wrap;
        }
        .cta-extra {
            color: rgba(255, 255, 255, .5);
            font-size: 12px;
            margin-top: 18px;
        }
        .cta-aside {
            min-height: 260px;
            background-size: cover;
            background-position: center;
            position: relative;
            display: flex;
            align-items: flex-end;
        }
        .cta-aside::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(6, 9, 9, .45), transparent);
        }
        .cta-aside span {
            position: relative;
            z-index: 1;
            color: rgba(255, 255, 255, .8);
            font-size: 12px;
            padding: 20px 24px;
            letter-spacing: .1em;
        }

        /* ===== FAQ ===== */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 14px;
            max-width: 880px;
        }
        .faq-item {
            background: #fff;
            border: 1px solid rgba(228, 223, 213, .7);
            border-radius: 14px;
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item[open],
        .faq-item:hover {
            border-color: rgba(25, 121, 110, .35);
            box-shadow: 0 8px 28px rgba(17, 24, 21, .07);
        }
        .faq-item summary {
            cursor: pointer;
            list-style: none;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            padding: 22px 28px;
            font-size: 16px;
            font-weight: 600;
            color: var(--ink);
            transition: color .18s;
        }
        .faq-item summary::-webkit-details-marker {
            display: none;
        }
        .faq-item summary:hover {
            color: var(--primary);
        }
        .faq-icon {
            flex-shrink: 0;
            width: 30px;
            height: 30px;
            border-radius: 50%;
            background: var(--teal-soft);
            color: var(--teal);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            font-weight: 500;
            transition: transform .18s, background .18s;
        }
        .faq-item[open] .faq-icon {
            transform: rotate(45deg);
            background: var(--primary);
            color: #fff;
        }
        .faq-body {
            padding: 0 30px 24px;
            color: var(--muted);
            font-size: 15px;
            line-height: 1.9;
        }

        /* ===== Form & Modal ===== */
        .modal-overlay {
            position: fixed;
            inset: 0;
            z-index: 300;
            display: none;
            align-items: center;
            justify-content: center;
            padding: 24px;
            background: rgba(7, 10, 9, .60);
            backdrop-filter: blur(4px);
            -webkit-backdrop-filter: blur(4px);
        }
        .modal-overlay.open {
            display: flex;
        }
        .modal-card {
            width: 100%;
            max-width: 600px;
            background: #fff;
            border-radius: 16px;
            box-shadow: 0 28px 80px rgba(0, 0, 0, .24);
            overflow: hidden;
            position: relative;
            max-height: calc(100vh - 40px);
            overflow-y: auto;
            padding: 34px 36px 30px;
            border-top: 4px solid var(--primary);
        }
        .modal-close {
            position: absolute;
            top: 16px;
            right: 16px;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            border: none;
            background: #EEE5DC;
            color: #5A4631;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: var(--transition);
        }
        .modal-close:hover {
            background: rgba(217, 87, 38, .14);
            color: var(--primary);
        }
        .modal-private-link {
            position: absolute;
            top: 21px;
            right: 58px;
            font-size: 12px;
            color: var(--teal);
            border-bottom: 1px solid rgba(25, 121, 110, .3);
        }
        .modal-kicker {
            color: var(--primary);
            font-size: 13px;
            font-weight: 600;
        }
        .modal-card h3 {
            margin: 8px 0 8px;
            font-size: 27px;
            line-height: 1.4;
            font-weight: 700;
        }
        .modal-card .modal-sub {
            color: var(--muted);
            font-size: 14px;
            margin-bottom: 24px;
            line-height: 1.7;
        }
        .form-group {
            margin-bottom: 18px;
        }
        .form-group label {
            display: block;
            font-size: 14px;
            font-weight: 600;
            margin-bottom: 7px;
            color: #36423D;
        }
        .form-group input,
        .form-group select {
            width: 100%;
            border: 1.5px solid #D8D1C5;
            border-radius: 8px;
            height: 44px;
            padding: 0 14px;
            background: #fff;
            color: var(--ink);
            transition: var(--transition);
            outline: none;
        }
        .form-group input:focus,
        .form-group select:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(217, 87, 38, .14);
        }
        .form-check {
            display: flex;
            gap: 10px;
            align-items: flex-start;
            margin-bottom: 18px;
            font-size: 13px;
            color: var(--muted);
            line-height: 1.65;
        }
        .form-check input {
            width: 16px;
            height: 16px;
            margin-top: 3px;
            accent-color: var(--primary);
        }
        .form-privacy {
            margin: 14px 0 0;
            font-size: 12px;
            color: #8B9290;
            line-height: 1.7;
        }
        .form-submit {
            width: 100%;
            border: none;
            margin-top: 10px;
        }
        .form-error {
            color: #D23D3D;
            font-size: 12px;
            margin-top: 6px;
            display: none;
        }

        /* ===== Toast ===== */
        .toast-tip {
            position: fixed;
            left: 50%;
            bottom: 30px;
            transform: translate(-50%, 12px);
            z-index: 400;
            background: #1F2623;
            color: #F3F0E8;
            font-size: 14px;
            padding: 12px 20px;
            border-radius: 10px;
            box-shadow: 0 12px 30px rgba(0, 0, 0, .22);
            opacity: 0;
            pointer-events: none;
            transition: opacity .22s, transform .22s;
            max-width: calc(100% - 40px);
        }
        .toast-tip.show {
            opacity: 1;
            transform: translate(-50%, 0);
        }

        /* ===== Footer ===== */
        .site-footer {
            background: #0B1114;
            color: #B8BDB7;
            padding: 64px 0 0;
            margin-top: 30px;
        }
        .footer-container {
            display: grid;
            grid-template-columns: 1.7fr 1fr 1fr 1fr;
            gap: 44px;
            padding-bottom: 44px;
            border-bottom: 1px solid rgba(255, 255, 255, .08);
        }
        .footer-brand-txt {
            color: #F3F0E8;
            font-size: 22px;
            font-weight: 700;
            margin-bottom: 12px;
        }
        .footer-brand-desc {
            color: rgba(255, 255, 255, .58);
            font-size: 14px;
            line-height: 1.9;
            margin: 0 0 12px;
            max-width: 320px;
        }
        .footer-domain {
            color: rgba(255, 255, 255, .35);
            font-size: 12px;
            letter-spacing: .05em;
        }
        .footer-col-title {
            font-size: 14px;
            font-weight: 600;
            color: #E7E3DA;
            margin-bottom: 18px;
            letter-spacing: .02em;
        }
        .footer-links {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .footer-links a {
            color: rgba(255, 255, 255, .6);
            font-size: 14px;
            transition: color .18s, padding-left .18s;
        }
        .footer-links a:hover {
            color: #fff;
            padding-left: 4px;
        }
        .footer-copy {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 10px;
            padding: 22px 0;
            color: rgba(255, 255, 255, .34);
            font-size: 13px;
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .nav-menu,
            .desktop-search,
            .desktop-cta {
                display: none;
            }
            .nav-toggle {
                display: inline-flex;
            }
            .header-inner {
                gap: 10px;
            }
            .news-cards-3 {
                grid-template-columns: 1fr 1fr;
            }
            .window-card,
            .cta-band {
                grid-template-columns: 1fr;
            }
            .window-visual {
                padding: 24px;
            }
            .compat-columns,
            .guide-grid {
                grid-template-columns: 1fr;
            }
            .step-card.wide {
                grid-template-columns: 1fr;
            }
            .footer-container {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
        }
        @media (max-width: 768px) {
            .section {
                padding: 64px 0;
            }
            .content-wrap {
                width: min(100% - 36px, 1200px);
            }
            .footer-container {
                grid-template-columns: 1fr;
            }
            .news-cards-3 {
                grid-template-columns: 1fr;
            }
            .page-hero {
                padding: 130px 0 64px;
            }
            .page-hero h1 {
                font-size: 28px;
            }
            .page-hero .hero-lead {
                font-size: 15px;
            }
            .hero-cta {
                flex-direction: column;
                align-items: stretch;
            }
            .hero-cta .btn {
                justify-content: center;
            }
            .modal-card {
                padding: 28px 20px;
            }
            .modal-private-link {
                right: 12px;
            }
        }
        @media (max-width: 520px) {
            .brand-main {
                font-size: 17px;
            }
            .brand-domain {
                font-size: 10px;
            }
            .header-inner {
                height: 66px;
            }
            .mobile-drawer {
                max-height: calc(100vh - 66px);
            }
            .site-header.scrolled .nav-toggle {
                color: var(--muted);
            }
            .footer-container {
                gap: 28px;
            }
            .compat-card-inner .compat-top {
                flex-direction: column;
                align-items: flex-start;
            }
        }