/* roulang page: index */
:root {
        --primary: #FF6B1A;
        --primary-light: #FF8E4D;
        --primary-bg: rgba(255, 107, 26, .1);
        --secondary: #00E07A;
        --secondary-bg: rgba(0, 224, 122, .12);
        --dark: #0E1B2A;
        --dark-2: #162A3E;
        --bg: #F6F4F0;
        --white: #FFFFFF;
        --text-heading: #0E1B2A;
        --text-body: #2A2A2A;
        --text-muted: #6B7280;
        --text-weak: #9CA3AF;
        --border: #E8E6E1;
        --border-2: #D1CCC4;
        --radius-lg: 16px;
        --radius-md: 12px;
        --radius-sm: 8px;
        --radius-full: 999px;
        --shadow-card: 0 2px 8px rgba(14, 27, 42, .04);
        --shadow-hover: 0 8px 24px rgba(255, 107, 26, .10);
        --shadow-nav: 0 4px 20px rgba(14, 27, 42, .08);
        --font-main: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
        --container: 1200px;
    }

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

    html {
        scroll-behavior: smooth;
    }

    body {
        font-family: var(--font-main);
        background: var(--bg);
        color: var(--text-body);
        line-height: 1.8;
        font-size: 16px;
        -webkit-font-smoothing: antialiased;
    }

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

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

    ul,
    ol {
        list-style: none;
    }

    button {
        font-family: inherit;
        cursor: pointer;
        border: none;
        background: none;
    }

    input {
        font-family: inherit;
        font-size: 14px;
    }

    .container {
        max-width: var(--container);
        margin: 0 auto;
        padding: 0 24px;
    }

    .btn {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        gap: 8px;
        height: 46px;
        padding: 0 28px;
        border-radius: 10px;
        font-size: 15px;
        font-weight: 600;
        line-height: 1;
        transition: all .2s ease;
        border: 1px solid transparent;
        white-space: nowrap;
    }

    .btn-primary {
        background: var(--primary);
        color: var(--white);
    }
    .btn-primary:hover {
        filter: brightness(1.08);
        box-shadow: 0 6px 16px rgba(255, 107, 26, .28);
    }
    .btn-primary:active {
        transform: translateY(1px);
        filter: brightness(.98);
    }

    .btn-ghost {
        background: transparent;
        border-color: var(--primary);
        color: var(--primary);
    }
    .btn-ghost:hover {
        background: var(--primary-bg);
        border-color: var(--primary);
    }
    .btn-ghost:active {
        transform: translateY(1px);
    }

    .btn-dashed {
        background: transparent;
        border: 1px dashed var(--border-2);
        color: var(--text-muted);
        border-radius: 10px;
        height: 44px;
        padding: 0 24px;
        font-size: 14px;
        transition: all .2s ease;
    }
    .btn-dashed:hover {
        border-color: var(--primary);
        color: var(--primary);
    }

    .btn-block {
        width: 100%;
    }

    .btn:focus-visible,
    .form-input:focus-visible,
    a:focus-visible {
        outline: 3px solid rgba(255, 107, 26, .35);
        outline-offset: 2px;
    }

    /* ===== Header ===== */
    .site-header {
        position: sticky;
        top: 0;
        z-index: 100;
        background: var(--white);
        box-shadow: var(--shadow-nav);
        border-bottom: 1px solid var(--border);
    }

    .header-top {
        display: flex;
        align-items: center;
        justify-content: space-between;
        height: 68px;
        padding: 0 24px;
        max-width: var(--container);
        margin: 0 auto;
    }

    .brand {
        display: flex;
        align-items: center;
        gap: 10px;
    }

    .brand-logo {
        width: 38px;
        height: 38px;
        background: var(--primary);
        border-radius: 10px;
        display: flex;
        align-items: center;
        justify-content: center;
        flex-shrink: 0;
    }

    .brand-name {
        font-size: 22px;
        font-weight: 800;
        color: var(--text-heading);
        letter-spacing: .5px;
    }

    .brand-name span {
        font-weight: 700;
        font-size: 15px;
        color: var(--text-weak);
        margin-left: 2px;
    }

    .header-actions {
        display: flex;
        align-items: center;
        gap: 14px;
    }

    .header-login {
        font-size: 14px;
        font-weight: 500;
        color: var(--text-body);
        padding: 8px 4px;
    }
    .header-login:hover {
        color: var(--primary);
    }

    .btn-download {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        height: 38px;
        padding: 0 18px;
        background: var(--dark);
        color: var(--white);
        border-radius: 8px;
        font-size: 13px;
        font-weight: 600;
        transition: all .2s ease;
        border: 1px solid var(--dark);
    }
    .btn-download:hover {
        background: var(--primary);
        border-color: var(--primary);
    }

    .nav-bar {
        border-top: 1px solid var(--border);
        background: var(--white);
    }

    .nav-links {
        display: flex;
        align-items: center;
        max-width: var(--container);
        margin: 0 auto;
        padding: 0 24px;
        overflow-x: auto;
        scrollbar-width: none;
    }
    .nav-links::-webkit-scrollbar {
        display: none;
    }

    .nav-links a {
        display: inline-flex;
        align-items: center;
        height: 48px;
        padding: 0 22px;
        font-size: 15px;
        font-weight: 500;
        color: var(--text-muted);
        border-bottom: 2px solid transparent;
        transition: all .2s ease;
        white-space: nowrap;
    }
    .nav-links a:hover {
        color: var(--primary);
    }
    .nav-links a.active {
        color: var(--primary);
        font-weight: 600;
        border-bottom-color: var(--primary);
    }

    /* ===== Hero ===== */
    .hero {
        position: relative;
        background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
        padding: 80px 0 72px;
    }
    .hero::before {
        content: '';
        position: absolute;
        inset: 0;
        background: linear-gradient(90deg, rgba(14, 27, 42, .88) 0%, rgba(14, 27, 42, .72) 55%, rgba(14, 27, 42, .45) 100%);
    }

    .hero-grid {
        position: relative;
        z-index: 2;
        display: grid;
        grid-template-columns: 55% 45%;
        gap: 48px;
        align-items: center;
    }

    .hero-content {
        color: var(--white);
    }

    .hero-tag {
        display: inline-block;
        background: rgba(255, 255, 255, .14);
        border: 1px solid rgba(255, 255, 255, .25);
        color: rgba(255, 255, 255, .9);
        font-size: 13px;
        border-radius: var(--radius-full);
        padding: 4px 14px;
        margin-bottom: 22px;
        letter-spacing: .4px;
    }

    .hero-title {
        font-size: 36px;
        line-height: 44px;
        font-weight: 800;
        color: var(--white);
        margin-bottom: 18px;
        letter-spacing: .5px;
    }

    .hero-subtitle {
        font-size: 17px;
        line-height: 1.8;
        color: rgba(255, 255, 255, .85);
        margin-bottom: 36px;
        max-width: 480px;
    }

    .hero-ctas {
        display: flex;
        gap: 14px;
        flex-wrap: wrap;
        margin-bottom: 56px;
    }

    .hero-ctas .btn-ghost {
        background: rgba(255, 255, 255, .08);
        border-color: rgba(255, 255, 255, .7);
        color: var(--white);
    }
    .hero-ctas .btn-ghost:hover {
        background: rgba(255, 255, 255, .18);
        border-color: var(--white);
    }

    .hero-stats {
        display: flex;
        gap: 40px;
        flex-wrap: wrap;
        border-top: 1px solid rgba(255, 255, 255, .2);
        padding-top: 28px;
    }

    .stat-item {
        min-width: 90px;
    }

    .stat-num {
        display: block;
        font-size: 32px;
        font-weight: 800;
        color: var(--secondary);
        font-variant-numeric: tabular-nums;
        line-height: 1.2;
    }

    .stat-label {
        font-size: 13px;
        color: rgba(255, 255, 255, .7);
        margin-top: 4px;
    }

    /* ===== Login Card ===== */
    .login-card {
        background: var(--white);
        border-radius: var(--radius-lg);
        box-shadow: 0 12px 36px rgba(14, 27, 42, .18);
        overflow: hidden;
        position: relative;
        margin-left: auto;
        width: 100%;
        max-width: 420px;
    }

    .login-card::before {
        content: '';
        display: block;
        height: 4px;
        background: linear-gradient(90deg, var(--primary), #FFB31A);
    }

    .login-card-body {
        padding: 32px 32px 24px;
    }

    .login-title {
        font-size: 20px;
        font-weight: 700;
        color: var(--text-heading);
        margin-bottom: 24px;
        text-align: center;
    }

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

    .form-label {
        display: block;
        font-size: 13px;
        color: var(--text-muted);
        margin-bottom: 6px;
    }

    .form-input {
        width: 100%;
        height: 44px;
        border: 1px solid var(--border);
        border-radius: var(--radius-sm);
        padding: 0 14px;
        font-size: 14px;
        color: var(--text-body);
        background: var(--white);
        transition: border-color .2s, box-shadow .2s;
    }
    .form-input::placeholder {
        color: var(--text-weak);
    }
    .form-input:focus {
        outline: none;
        border-color: var(--primary);
        box-shadow: 0 0 0 3px rgba(255, 107, 26, .15);
    }

    .captcha-row {
        display: flex;
        gap: 10px;
    }
    .captcha-row .form-input {
        flex: 1;
        min-width: 0;
    }
    .captcha-box {
        width: 96px;
        height: 44px;
        border-radius: var(--radius-sm);
        border: 1px solid var(--border);
        background: var(--bg);
        display: flex;
        align-items: center;
        justify-content: center;
        overflow: hidden;
        flex-shrink: 0;
    }

    .login-btn {
        margin-top: 10px;
    }

    .login-agree {
        text-align: center;
        font-size: 12px;
        color: var(--text-weak);
        margin-top: 18px;
        line-height: 1.6;
    }
    .login-agree a {
        color: var(--text-muted);
        text-decoration: underline;
    }
    .login-agree a:hover {
        color: var(--primary);
    }

    /* ===== Channel Tabs ===== */
    .channel-tabs {
        background: var(--white);
        border-bottom: 1px solid var(--border);
    }

    .channel-list {
        display: flex;
        align-items: center;
        gap: 12px;
        max-width: var(--container);
        margin: 0 auto;
        padding: 18px 24px;
        overflow-x: auto;
        scrollbar-width: none;
    }
    .channel-list::-webkit-scrollbar {
        display: none;
    }

    .channel-item {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        height: 36px;
        padding: 0 18px;
        border-radius: var(--radius-full);
        background: var(--bg);
        color: var(--text-muted);
        font-size: 14px;
        font-weight: 500;
        white-space: nowrap;
        transition: all .2s ease;
        border: 1px solid transparent;
    }
    .channel-item:hover {
        color: var(--primary);
        background: var(--primary-bg);
        border-color: rgba(255, 107, 26, .2);
    }
    .channel-item.active {
        background: var(--primary);
        color: var(--white);
        font-weight: 600;
        box-shadow: 0 4px 12px rgba(255, 107, 26, .25);
    }

    /* ===== Section Common ===== */
    .section {
        padding: 72px 0;
    }
    .section.bg-white {
        background: var(--white);
    }
    .section.bg-soft {
        background: var(--bg);
    }

    .section-title-wrap {
        display: flex;
        align-items: center;
        gap: 14px;
        margin-bottom: 40px;
    }
    .section-line {
        display: block;
        width: 4px;
        height: 28px;
        border-radius: 4px;
        background: var(--primary);
    }
    .section-title {
        font-size: 28px;
        line-height: 36px;
        font-weight: 700;
        color: var(--text-heading);
    }
    .section-subtitle {
        font-size: 15px;
        color: var(--text-muted);
        margin-top: 4px;
    }

    /* ===== Timeline ===== */
    .timeline {
        position: relative;
        max-width: 960px;
        margin: 0 auto;
        padding: 8px 0 20px;
    }
    .timeline::before {
        content: '';
        position: absolute;
        left: 50%;
        top: 0;
        bottom: 0;
        width: 2px;
        background: var(--primary);
        transform: translateX(-50%);
    }

    .timeline-item {
        position: relative;
        width: 50%;
        padding: 0 42px;
        margin-bottom: 44px;
    }
    .timeline-item.left {
        left: 0;
        text-align: right;
    }
    .timeline-item.right {
        left: 50%;
        text-align: left;
    }

    .timeline-dot {
        position: absolute;
        top: 8px;
        width: 14px;
        height: 14px;
        border-radius: var(--radius-full);
        background: var(--primary);
        border: 3px solid var(--white);
        box-shadow: 0 0 0 2px var(--primary);
        z-index: 2;
    }
    .timeline-item.left .timeline-dot {
        right: -7px;
    }
    .timeline-item.right .timeline-dot {
        left: -7px;
    }

    .timeline-card {
        background: var(--white);
        border: 1px solid var(--border);
        border-radius: var(--radius-md);
        padding: 24px 24px 20px;
        box-shadow: var(--shadow-card);
        transition: transform .25s ease, box-shadow .25s ease;
    }
    .timeline-card:hover {
        transform: translateY(-4px);
        box-shadow: var(--shadow-hover);
        border-color: rgba(255, 107, 26, .3);
    }

    .time-pill {
        display: inline-block;
        background: var(--white);
        border: 1px solid var(--primary);
        color: var(--primary);
        font-size: 13px;
        font-weight: 600;
        border-radius: var(--radius-full);
        padding: 3px 12px;
        margin-bottom: 10px;
    }
    .place-text {
        font-size: 13px;
        color: var(--text-muted);
        display: block;
        margin-bottom: 8px;
    }
    .timeline-title {
        font-size: 18px;
        font-weight: 600;
        color: var(--text-heading);
        margin-bottom: 6px;
    }
    .timeline-desc {
        font-size: 14px;
        color: var(--text-muted);
        line-height: 1.7;
        display: -webkit-box;
        -webkit-line-clamp: 2;
        -webkit-box-orient: vertical;
        overflow: hidden;
    }

    .timeline-more {
        text-align: center;
        margin-top: 12px;
    }

    /* ===== Spotlight ===== */
    .spotlight-grid {
        display: flex;
        flex-direction: column;
        gap: 40px;
    }

    .spotlight-row {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 48px;
        align-items: center;
    }
    .spotlight-row.reverse .spotlight-left {
        order: 2;
    }
    .spotlight-row.reverse .spotlight-right {
        order: 1;
    }

    .speaker-card {
        display: flex;
        align-items: center;
        gap: 18px;
        background: var(--white);
        border: 1px solid var(--border);
        border-radius: var(--radius-md);
        padding: 24px;
        box-shadow: var(--shadow-card);
        transition: all .25s ease;
    }
    .speaker-card:hover {
        box-shadow: var(--shadow-hover);
        border-color: rgba(255, 107, 26, .3);
        transform: translateY(-4px);
    }

    .speaker-avatar {
        width: 72px;
        height: 72px;
        border-radius: var(--radius-full);
        object-fit: cover;
        flex-shrink: 0;
        border: 2px solid var(--primary);
        padding: 2px;
        background: var(--white);
    }

    .speaker-info h3 {
        font-size: 18px;
        font-weight: 600;
        color: var(--text-heading);
        margin-bottom: 2px;
    }
    .speaker-info .speaker-role {
        font-size: 13px;
        color: var(--primary);
        font-weight: 500;
        display: block;
        margin-bottom: 6px;
    }
    .speaker-info p {
        font-size: 14px;
        color: var(--text-muted);
        line-height: 1.6;
    }

    .highlight-item {
        padding: 20px 24px;
        background: var(--white);
        border: 1px solid var(--border);
        border-radius: var(--radius-md);
        box-shadow: var(--shadow-card);
        margin-bottom: 16px;
        transition: all .25s ease;
    }
    .highlight-item:hover {
        border-color: rgba(255, 107, 26, .3);
        box-shadow: var(--shadow-hover);
    }

    .highlight-num {
        display: block;
        font-size: 32px;
        font-weight: 800;
        color: var(--secondary);
        font-variant-numeric: tabular-nums;
        line-height: 1.2;
        margin-bottom: 6px;
    }
    .highlight-item h3 {
        font-size: 17px;
        font-weight: 600;
        color: var(--text-heading);
        margin-bottom: 4px;
    }
    .highlight-item p {
        font-size: 14px;
        color: var(--text-muted);
        line-height: 1.6;
    }

    .highlight-media {
        border-radius: var(--radius-md);
        overflow: hidden;
        border: 1px solid var(--border);
        box-shadow: var(--shadow-card);
        margin-bottom: 16px;
    }
    .highlight-media img {
        width: 100%;
        height: 180px;
        object-fit: cover;
        transition: transform .4s ease;
    }
    .highlight-media:hover img {
        transform: scale(1.03);
    }

    /* ===== Tickets ===== */
    .tickets-grid {
        display: flex;
        justify-content: center;
        align-items: stretch;
        gap: 24px;
    }

    .ticket-card {
        flex: 1;
        max-width: 340px;
        background: var(--white);
        border: 1px solid var(--border);
        border-radius: var(--radius-lg);
        padding: 32px 28px;
        box-shadow: var(--shadow-card);
        display: flex;
        flex-direction: column;
        transition: all .25s ease;
        position: relative;
    }
    .ticket-card:hover {
        transform: translateY(-4px);
        box-shadow: var(--shadow-hover);
        border-color: rgba(255, 107, 26, .3);
    }

    .ticket-card.popular {
        background: var(--dark);
        color: var(--white);
        border-color: var(--dark);
        transform: translateY(-12px);
        box-shadow: 0 20px 48px rgba(14, 27, 42, .25);
        max-width: 360px;
        padding-top: 40px;
        padding-bottom: 40px;
    }
    .ticket-card.popular::before {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        height: 4px;
        background: linear-gradient(90deg, var(--primary), #FFB31A);
        border-radius: var(--radius-lg) var(--radius-lg) 0 0;
    }
    .ticket-card.popular:hover {
        transform: translateY(-14px);
        border-color: var(--primary);
    }

    .ticket-badge {
        position: absolute;
        top: 16px;
        right: 16px;
        background: var(--primary);
        color: var(--white);
        font-size: 12px;
        font-weight: 600;
        border-radius: var(--radius-full);
        padding: 4px 12px;
        box-shadow: 0 4px 12px rgba(255, 107, 26, .3);
    }

    .ticket-name {
        font-size: 17px;
        font-weight: 600;
        color: var(--text-heading);
        margin-bottom: 12px;
    }
    .ticket-card.popular .ticket-name {
        color: var(--white);
    }

    .ticket-price {
        font-size: 36px;
        font-weight: 800;
        color: var(--text-heading);
        font-variant-numeric: tabular-nums;
        line-height: 1.2;
        margin-bottom: 20px;
    }
    .ticket-card.popular .ticket-price {
        color: var(--secondary);
    }
    .ticket-price small {
        font-size: 14px;
        font-weight: 400;
        color: var(--text-muted);
        margin-left: 4px;
    }
    .ticket-card.popular .ticket-price small {
        color: rgba(255, 255, 255, .6);
    }

    .ticket-list {
        margin-bottom: 28px;
        flex: 1;
    }
    .ticket-list li {
        position: relative;
        padding-left: 28px;
        font-size: 14px;
        color: var(--text-body);
        margin-bottom: 10px;
        line-height: 1.6;
    }
    .ticket-card.popular .ticket-list li {
        color: rgba(255, 255, 255, .85);
    }
    .ticket-list li::before {
        content: '';
        position: absolute;
        left: 0;
        top: 5px;
        width: 16px;
        height: 16px;
        background: var(--primary-bg);
        border-radius: var(--radius-full);
        box-shadow: inset 0 0 0 2px var(--primary);
    }
    .ticket-list li::after {
        content: '';
        position: absolute;
        left: 6px;
        top: 10px;
        width: 4px;
        height: 7px;
        border-right: 2px solid var(--primary);
        border-bottom: 2px solid var(--primary);
        transform: rotate(40deg);
    }
    .ticket-card.popular .ticket-list li::before {
        background: rgba(255, 255, 255, .15);
        box-shadow: inset 0 0 0 2px var(--secondary);
    }
    .ticket-card.popular .ticket-list li::after {
        border-color: var(--secondary);
    }

    .ticket-btn {
        height: 46px;
        border-radius: 10px;
        font-size: 15px;
        font-weight: 600;
        display: flex;
        align-items: center;
        justify-content: center;
        transition: all .2s ease;
        border: 1px solid var(--primary);
        color: var(--primary);
        background: transparent;
        width: 100%;
    }
    .ticket-btn:hover {
        background: var(--primary-bg);
    }
    .ticket-card.popular .ticket-btn {
        background: var(--primary);
        color: var(--white);
        border-color: var(--primary);
    }
    .ticket-card.popular .ticket-btn:hover {
        filter: brightness(1.08);
    }

    /* ===== News CMS ===== */
    .news-list {
        display: flex;
        flex-direction: column;
        gap: 16px;
    }

    .news-item {
        display: flex;
        align-items: center;
        gap: 20px;
        background: var(--white);
        border: 1px solid var(--border);
        border-radius: var(--radius-md);
        padding: 22px 24px;
        box-shadow: var(--shadow-card);
        transition: all .25s ease;
    }
    .news-item:hover {
        transform: translateY(-4px);
        box-shadow: var(--shadow-hover);
        border-color: rgba(255, 107, 26, .3);
    }

    .news-cat {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        background: var(--primary-bg);
        color: var(--primary);
        font-size: 12px;
        font-weight: 600;
        border-radius: var(--radius-full);
        padding: 4px 14px;
        white-space: nowrap;
        flex-shrink: 0;
    }

    .news-body {
        flex: 1;
        min-width: 0;
    }
    .news-body h3 {
        font-size: 17px;
        font-weight: 600;
        color: var(--text-heading);
        margin-bottom: 4px;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
    }
    .news-body p {
        font-size: 14px;
        color: var(--text-muted);
        line-height: 1.6;
        display: -webkit-box;
        -webkit-line-clamp: 2;
        -webkit-box-orient: vertical;
        overflow: hidden;
        margin-bottom: 4px;
    }
    .news-date {
        font-size: 12px;
        color: var(--text-weak);
        font-variant-numeric: tabular-nums;
    }

    .news-arrow {
        width: 40px;
        height: 40px;
        border-radius: var(--radius-full);
        background: var(--bg);
        display: flex;
        align-items: center;
        justify-content: center;
        color: var(--text-muted);
        font-size: 18px;
        flex-shrink: 0;
        transition: all .2s ease;
    }
    .news-item:hover .news-arrow {
        background: var(--primary);
        color: var(--white);
        transform: translateX(3px);
    }

    .empty-state {
        border: 2px dashed var(--border-2);
        border-radius: var(--radius-md);
        padding: 60px 20px;
        text-align: center;
        color: var(--text-weak);
        font-size: 15px;
        background: var(--white);
    }

    /* ===== FAQ ===== */
    .faq-list {
        max-width: 860px;
        margin: 0 auto;
        background: var(--white);
        border: 1px solid var(--border);
        border-radius: var(--radius-lg);
        overflow: hidden;
        box-shadow: var(--shadow-card);
    }

    .faq-item {
        border-bottom: 1px solid var(--border);
        transition: all .3s ease;
    }
    .faq-item:last-child {
        border-bottom: none;
    }
    .faq-item.active {
        border-left: 2px solid var(--primary);
    }

    .faq-q {
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 12px;
        padding: 20px 24px;
        cursor: pointer;
        font-size: 16px;
        font-weight: 600;
        color: var(--text-heading);
        transition: color .2s;
    }
    .faq-q:hover {
        color: var(--primary);
    }
    .faq-q::before {
        content: 'Q：';
        color: var(--primary);
        font-weight: 700;
        flex-shrink: 0;
    }

    .faq-icon {
        width: 24px;
        height: 24px;
        border-radius: var(--radius-full);
        background: var(--bg);
        position: relative;
        flex-shrink: 0;
        transition: transform .3s ease, background .3s ease;
    }
    .faq-icon::before,
    .faq-icon::after {
        content: '';
        position: absolute;
        background: var(--text-muted);
        border-radius: 2px;
        top: 50%;
        left: 50%;
        transform: translate(-50%, -50%);
        transition: background .3s ease;
    }
    .faq-icon::before {
        width: 12px;
        height: 2px;
    }
    .faq-icon::after {
        width: 2px;
        height: 12px;
    }
    .faq-item.active .faq-icon {
        transform: rotate(45deg);
        background: var(--primary-bg);
    }
    .faq-item.active .faq-icon::before,
    .faq-item.active .faq-icon::after {
        background: var(--primary);
    }

    .faq-a {
        display: none;
        padding: 0 24px 22px 24px;
        font-size: 14px;
        color: var(--text-muted);
        line-height: 1.8;
    }
    .faq-a::before {
        content: 'A：';
        color: var(--primary);
        font-weight: 600;
        margin-right: 4px;
    }
    .faq-item.active .faq-a {
        display: block;
    }

    /* ===== CTA ===== */
    .cta-banner {
        position: relative;
        background: var(--dark);
        overflow: hidden;
        padding: 80px 24px;
        text-align: center;
    }
    .cta-banner::before {
        content: '';
        position: absolute;
        top: -60%;
        left: 50%;
        transform: translateX(-50%);
        width: 600px;
        height: 600px;
        background: radial-gradient(circle, rgba(255, 107, 26, .35) 0%, transparent 70%);
        z-index: 1;
    }
    .cta-banner::after {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background: repeating-linear-gradient(45deg, rgba(255, 255, 255, .03) 0px, rgba(255, 255, 255, .03) 1px, transparent 1px, transparent 14px);
        z-index: 1;
        pointer-events: none;
    }

    .cta-banner .container {
        position: relative;
        z-index: 2;
    }

    .cta-title {
        font-size: 24px;
        font-weight: 700;
        color: var(--white);
        margin-bottom: 32px;
        letter-spacing: .5px;
    }

    /* ===== Footer ===== */
    .site-footer {
        background: var(--dark);
        color: rgba(255, 255, 255, .65);
        padding-top: 64px;
    }

    .footer-grid {
        display: grid;
        grid-template-columns: 1.4fr 1fr 1fr;
        gap: 48px;
        padding-bottom: 48px;
    }

    .footer-brand .brand-name {
        color: var(--white);
        margin-bottom: 14px;
    }
    .footer-brand .brand-name span {
        color: rgba(255, 255, 255, .5);
    }
    .footer-brand p {
        font-size: 14px;
        line-height: 1.8;
        max-width: 360px;
        color: rgba(255, 255, 255, .55);
    }

    .footer-title {
        font-size: 16px;
        font-weight: 600;
        color: var(--white);
        margin-bottom: 18px;
    }

    .footer-links li {
        margin-bottom: 10px;
    }
    .footer-links a {
        font-size: 14px;
        color: rgba(255, 255, 255, .6);
        transition: all .2s ease;
    }
    .footer-links a:hover {
        color: var(--primary);
        padding-left: 4px;
    }

    .footer-contact li {
        font-size: 14px;
        margin-bottom: 10px;
        color: rgba(255, 255, 255, .6);
        font-variant-numeric: tabular-nums;
    }

    .footer-bottom {
        border-top: 1px solid rgba(255, 255, 255, .12);
        padding: 20px 0;
        text-align: center;
        font-size: 13px;
        color: rgba(255, 255, 255, .45);
    }

    /* ===== Responsive ===== */
    @media (max-width: 1023px) {
        .hero-grid {
            grid-template-columns: 1fr;
            gap: 40px;
        }
        .login-card {
            margin-left: 0;
            max-width: 100%;
        }
        .hero {
            padding: 48px 0;
        }
        .hero-stats {
            gap: 24px;
        }
        .spotlight-row {
            grid-template-columns: 1fr;
            gap: 24px;
        }
        .spotlight-row.reverse .spotlight-left {
            order: 1;
        }
        .spotlight-row.reverse .spotlight-right {
            order: 2;
        }
        .tickets-grid {
            flex-direction: column;
            align-items: center;
        }
        .ticket-card,
        .ticket-card.popular {
            max-width: 420px;
            width: 100%;
            transform: none;
        }
        .ticket-card.popular {
            transform: none;
            margin: 8px 0;
        }
        .ticket-card.popular:hover {
            transform: translateY(-4px);
        }
        .footer-grid {
            grid-template-columns: 1fr 1fr;
        }
    }

    @media (max-width: 767px) {
        .container {
            padding: 0 16px;
        }
        .header-top {
            height: 60px;
            padding: 0 16px;
        }
        .brand-name {
            font-size: 19px;
        }
        .btn-download {
            display: none;
        }
        .nav-links {
            padding: 0 16px;
        }
        .nav-links a {
            padding: 0 16px;
            font-size: 14px;
        }
        .hero {
            padding: 40px 0 48px;
        }
        .hero-title {
            font-size: 28px;
            line-height: 36px;
        }
        .hero-subtitle {
            font-size: 15px;
        }
        .hero-ctas {
            flex-direction: column;
            align-items: stretch;
        }
        .hero-ctas .btn {
            width: 100%;
        }
        .hero-stats {
            gap: 20px;
        }
        .stat-num {
            font-size: 26px;
        }
        .stat-label {
            font-size: 12px;
        }
        .login-card-body {
            padding: 24px 20px 20px;
        }
        .section {
            padding: 48px 0;
        }
        .section-title {
            font-size: 24px;
            line-height: 32px;
        }
        .section-title-wrap {
            margin-bottom: 28px;
        }
        .timeline::before {
            left: 12px;
        }
        .timeline-item,
        .timeline-item.left,
        .timeline-item.right {
            width: 100%;
            left: 0;
            text-align: left;
            padding: 0 0 0 36px;
        }
        .timeline-item.left .timeline-dot,
        .timeline-item.right .timeline-dot {
            left: 5px;
            right: auto;
        }
        .timeline-card {
            padding: 18px 16px;
        }
        .spotlight-row {
            gap: 20px;
        }
        .speaker-card {
            flex-direction: column;
            text-align: center;
            padding: 20px 16px;
        }
        .tickets-grid {
            gap: 16px;
        }
        .ticket-card,
        .ticket-card.popular {
            padding: 24px 20px;
        }
        .news-item {
            flex-direction: column;
            align-items: flex-start;
            gap: 12px;
            padding: 18px 16px;
        }
        .news-body h3 {
            white-space: normal;
        }
        .news-arrow {
            display: none;
        }
        .faq-q {
            padding: 16px 16px;
            font-size: 15px;
        }
        .faq-a {
            padding: 0 16px 16px;
        }
        .cta-banner {
            padding: 56px 16px;
        }
        .cta-title {
            font-size: 20px;
        }
        .footer-grid {
            grid-template-columns: 1fr;
            gap: 32px;
            padding-bottom: 32px;
        }
        .channel-list {
            padding: 14px 16px;
        }
        .channel-item {
            height: 34px;
            font-size: 13px;
            padding: 0 14px;
        }
    }

    @media (max-width: 520px) {
        .hero-stats {
            flex-direction: column;
            gap: 14px;
        }
        .ticket-card.popular {
            margin: 0;
        }
        .highlight-media img {
            height: 140px;
        }
        .btn {
            padding: 0 20px;
            font-size: 14px;
        }
        .captcha-box {
            width: 84px;
        }
    }

/* roulang page: article */
:root {
  --primary: #FF6B1A;
  --primary-light: #FFF0E8;
  --primary-30: rgba(255, 107, 26, 0.3);
  --accent: #00E07A;
  --accent-light: rgba(0, 224, 122, 0.1);
  --dark: #0E1B2A;
  --dark-light: #14263A;
  --bg: #F6F4F0;
  --white: #FFFFFF;
  --title-color: #0E1B2A;
  --text-color: #2A2A2A;
  --gray: #6B7280;
  --light-gray: #9CA3AF;
  --border: #E8E6E1;
  --border-light: #D1CCC4;
  --radius: 12px;
  --radius-sm: 8px;
  --shadow: 0 2px 8px rgba(14, 27, 42, 0.04);
  --shadow-hover: 0 8px 24px rgba(255, 107, 26, 0.10);
  --font-family: -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Microsoft YaHei', 'Segoe UI', Roboto, sans-serif;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-family);
  font-size: 16px;
  line-height: 1.8;
  color: var(--text-color);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; transition: color 0.2s ease; }
ul, ol { list-style: none; }
button, input, select, textarea { font-family: inherit; font-size: inherit; line-height: inherit; }

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

/* ===== Header & Nav ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--white);
  box-shadow: 0 1px 0 rgba(14, 27, 42, 0.06);
}

.header-top {
  max-width: 1200px;
  margin: 0 auto;
  padding: 14px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
}

.brand-logo {
  width: 34px;
  height: 34px;
  border-radius: 9px;
  background: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 2px 8px rgba(255, 107, 26, 0.25);
  flex-shrink: 0;
}

.brand-name {
  font-size: 20px;
  font-weight: 800;
  color: var(--title-color);
  letter-spacing: 0.5px;
}

.brand-name span {
  font-size: 13px;
  font-weight: 500;
  color: var(--gray);
  margin-left: 2px;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.header-login {
  font-size: 14px;
  font-weight: 500;
  color: var(--primary);
  padding: 8px 16px;
  border-radius: 20px;
  transition: background 0.2s;
}

.header-login:hover {
  background: var(--primary-light);
}

.btn-download {
  font-size: 14px;
  font-weight: 600;
  color: var(--white);
  background: var(--primary);
  padding: 8px 18px;
  border-radius: 20px;
  transition: filter 0.2s, transform 0.1s;
}

.btn-download:hover {
  filter: brightness(1.08);
}

.btn-download:active {
  transform: translateY(1px);
}

.nav-bar {
  border-top: 1px solid var(--border);
  background: var(--white);
}

.nav-links {
  max-width: 1200px;
  margin: 0 auto;
  padding: 10px 24px;
  display: flex;
  gap: 8px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.nav-links a {
  padding: 7px 20px;
  border-radius: 20px;
  font-size: 15px;
  font-weight: 500;
  color: var(--gray);
  white-space: nowrap;
  transition: background 0.2s, color 0.2s;
}

.nav-links a:hover {
  color: var(--primary);
  background: var(--primary-light);
}

.nav-links a.active {
  background: var(--primary);
  color: var(--white);
  font-weight: 600;
}

@media (max-width: 767px) {
  .header-top {
    padding: 12px 16px;
  }
  .nav-links {
    padding: 8px 16px;
  }
}

/* ===== Breadcrumb ===== */
.breadcrumb {
  background: var(--white);
  border-bottom: 1px solid var(--border);
  padding: 14px 0;
}

.breadcrumb .container {
  font-size: 14px;
  color: var(--gray);
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.breadcrumb a {
  color: var(--gray);
  transition: color 0.2s;
}

.breadcrumb a:hover {
  color: var(--primary);
}

.breadcrumb-sep {
  color: var(--border-light);
}

.breadcrumb-current {
  color: var(--text-color);
  font-weight: 500;
  max-width: 320px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* ===== Article Main ===== */
.article-main {
  background: var(--white);
  padding: 48px 0 64px;
}

.article-wrap {
  max-width: 860px;
  margin: 0 auto;
}

.category-title {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 28px;
}

.category-bar {
  width: 4px;
  height: 22px;
  background: var(--primary);
  border-radius: 2px;
  flex-shrink: 0;
}

.category-title h2 {
  font-size: 16px;
  font-weight: 600;
  color: var(--primary);
  letter-spacing: 0.3px;
}

.article-title {
  font-size: 34px;
  line-height: 1.35;
  font-weight: 800;
  color: var(--title-color);
  margin-bottom: 16px;
  letter-spacing: 0.5px;
}

.article-meta {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 14px;
  color: var(--gray);
  padding-bottom: 24px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 32px;
}

.meta-date::before {
  content: "";
  display: inline-block;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--accent);
  margin-right: 6px;
  vertical-align: middle;
}

.meta-category {
  background: var(--primary-light);
  color: var(--primary);
  font-size: 12px;
  font-weight: 600;
  padding: 3px 12px;
  border-radius: 12px;
}

.article-body {
  max-width: 720px;
  margin: 0 auto;
  font-size: 16px;
  line-height: 1.8;
  color: var(--text-color);
}

.article-body p {
  margin-bottom: 1.4em;
  font-size: 16px;
}

.article-body h3 {
  font-size: 20px;
  font-weight: 600;
  color: var(--title-color);
  margin: 32px 0 14px;
  line-height: 1.5;
}

.article-body h4 {
  font-size: 17px;
  font-weight: 600;
  color: var(--title-color);
  margin: 26px 0 12px;
}

.article-body ul,
.article-body ol {
  margin-bottom: 1.4em;
  padding-left: 24px;
}

.article-body ul li {
  list-style: disc;
  margin-bottom: 6px;
}

.article-body ol li {
  list-style: decimal;
  margin-bottom: 6px;
}

.article-body blockquote {
  border-left: 3px solid var(--primary);
  background: var(--primary-light);
  padding: 16px 20px;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  margin-bottom: 1.4em;
  color: var(--text-color);
}

.article-body blockquote p {
  margin-bottom: 0;
}

.article-body img {
  border-radius: 8px;
  margin: 24px auto;
  box-shadow: var(--shadow);
}

.article-body a {
  color: var(--primary);
  font-weight: 500;
  border-bottom: 1px solid var(--primary-30);
}

.article-body a:hover {
  color: var(--primary);
  border-bottom-color: var(--primary);
}

.article-body code {
  background: var(--bg);
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 14px;
}

.article-body pre {
  background: var(--dark);
  color: var(--white);
  padding: 20px;
  border-radius: var(--radius);
  overflow-x: auto;
  margin-bottom: 1.4em;
  line-height: 1.6;
}

/* Article Empty State */
.article-empty {
  text-align: center;
  padding: 76px 24px;
  border: 2px dashed var(--border-light);
  border-radius: var(--radius);
  background: var(--bg);
}

.article-empty h1 {
  font-size: 24px;
  font-weight: 700;
  color: var(--title-color);
  margin-bottom: 12px;
}

.article-empty p {
  color: var(--gray);
  margin-bottom: 24px;
  font-size: 15px;
}

.empty-icon {
  width: 52px;
  height: 52px;
  margin: 0 auto 20px;
  border-radius: 14px;
  background: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 14px rgba(255, 107, 26, 0.25);
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 15px;
  font-weight: 600;
  height: 46px;
  padding: 0 28px;
  border-radius: 10px;
  border: none;
  cursor: pointer;
  transition: background 0.2s, filter 0.2s, transform 0.1s, box-shadow 0.2s;
}

.btn-primary {
  background: var(--primary);
  color: var(--white);
  box-shadow: 0 4px 14px rgba(255, 107, 26, 0.2);
}

.btn-primary:hover {
  filter: brightness(1.08);
  box-shadow: 0 6px 20px rgba(255, 107, 26, 0.28);
}

.btn-primary:active {
  transform: translateY(1px);
}

.btn-outline {
  background: transparent;
  border: 1px solid var(--primary);
  color: var(--primary);
}

.btn-outline:hover {
  background: var(--primary-light);
}

.btn-lg {
  height: 52px;
  padding: 0 36px;
  font-size: 16px;
}

.btn-block {
  width: 100%;
}

/* ===== Related Section ===== */
.related-section {
  background: var(--bg);
  padding: 56px 0 64px;
}

.section-title {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 28px;
  font-weight: 700;
  color: var(--title-color);
  margin-bottom: 32px;
}

.title-bar {
  width: 4px;
  height: 22px;
  background: var(--primary);
  border-radius: 2px;
  flex-shrink: 0;
}

.related-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.related-card {
  display: flex;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}

.related-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-color: var(--primary-30);
}

.related-img {
  width: 40%;
  min-height: 140px;
  overflow: hidden;
}

.related-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.related-card:hover .related-img img {
  transform: scale(1.05);
}

.related-info {
  flex: 1;
  padding: 20px 22px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.related-info h3 {
  font-size: 17px;
  font-weight: 600;
  color: var(--title-color);
  line-height: 1.5;
  margin-bottom: 8px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.related-info p {
  font-size: 14px;
  color: var(--gray);
  line-height: 1.6;
  margin-bottom: 12px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.related-date {
  font-size: 12px;
  color: var(--light-gray);
  font-variant-numeric: tabular-nums;
}

@media (max-width: 767px) {
  .related-grid {
    grid-template-columns: 1fr;
  }
  .related-card {
    flex-direction: column;
  }
  .related-img {
    width: 100%;
    min-height: 160px;
  }
}

/* ===== Back Section ===== */
.back-section {
  background: var(--bg);
  padding: 0 0 56px;
}

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 15px;
  font-weight: 500;
  color: var(--gray);
  transition: color 0.2s, gap 0.2s;
}

.back-link:hover {
  color: var(--primary);
  gap: 12px;
}

.back-link .arrow {
  transition: transform 0.2s;
}

.back-link:hover .arrow {
  transform: translateX(-3px);
}

/* ===== CTA Section ===== */
.cta-section {
  background: var(--dark);
  position: relative;
  overflow: hidden;
  padding: 72px 0;
}

.cta-section::before {
  content: "";
  position: absolute;
  top: -120px;
  right: -80px;
  width: 480px;
  height: 480px;
  background: radial-gradient(circle, rgba(255, 107, 26, 0.35) 0%, transparent 70%);
  pointer-events: none;
}

.cta-section::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: 4px;
  background: linear-gradient(100deg, var(--primary) 0%, var(--accent) 100%);
  opacity: 0.7;
}

.cta-content {
  position: relative;
  z-index: 1;
  text-align: center;
}

.cta-content h2 {
  font-size: 26px;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 28px;
  letter-spacing: 0.5px;
}

.cta-content .btn {
  min-width: 160px;
}

@media (max-width: 767px) {
  .cta-section {
    padding: 56px 0;
  }
  .cta-content h2 {
    font-size: 22px;
  }
}

/* ===== Footer ===== */
.site-footer {
  background: var(--dark);
  color: #B0B8C4;
  padding: 56px 0 0;
  font-size: 14px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 40px;
}

.footer-brand .brand {
  margin-bottom: 16px;
}

.footer-brand .brand-logo {
  background: var(--primary);
}

.footer-brand .brand-name {
  color: var(--white);
}

.footer-brand p {
  line-height: 1.7;
  font-size: 14px;
  color: #9CA8B5;
  margin-top: 12px;
  max-width: 320px;
}

.footer-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--white);
  margin-bottom: 20px;
  letter-spacing: 0.5px;
}

.footer-links li,
.footer-contact li {
  margin-bottom: 12px;
  font-size: 14px;
  line-height: 1.6;
}

.footer-links a {
  color: #B0B8C4;
  transition: color 0.2s, padding-left 0.2s;
}

.footer-links a:hover {
  color: var(--primary);
  padding-left: 4px;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding: 20px 0;
  text-align: center;
  font-size: 13px;
  color: #7A8694;
}

@media (max-width: 1023px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
}

@media (max-width: 767px) {
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }
}

/* ===== Responsive Global ===== */
@media (max-width: 1023px) {
  .article-title {
    font-size: 30px;
  }
}

@media (max-width: 767px) {
  .container {
    padding: 0 16px;
  }
  .article-main {
    padding: 32px 0 48px;
  }
  .article-title {
    font-size: 26px;
    line-height: 1.4;
  }
  .article-meta {
    gap: 10px;
    flex-wrap: wrap;
  }
  .section-title {
    font-size: 24px;
    margin-bottom: 24px;
  }
  .related-section {
    padding: 40px 0 48px;
  }
  .back-section {
    padding-bottom: 40px;
  }
}

@media (min-width: 1024px) {
  .nav-links {
    gap: 10px;
  }
}

/* roulang page: category1 */
:root {
            --primary: #FF6B1A;
            --primary-hover: #ff7d33;
            --primary-soft: rgba(255, 107, 26, 0.1);
            --accent: #00E07A;
            --dark: #0E1B2A;
            --dark-2: #16283A;
            --bg: #F6F4F0;
            --text: #2A2A2A;
            --text-light: #6B7280;
            --text-weak: #9CA3AF;
            --border: #E8E6E1;
            --radius: 12px;
            --radius-sm: 8px;
            --shadow: 0 2px 8px rgba(14, 27, 42, 0.04);
            --shadow-hover: 0 8px 24px rgba(255, 107, 26, 0.10);
            --font: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font);
            font-size: 16px;
            line-height: 1.8;
            color: var(--text);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
        }
        img {
            max-width: 100%;
            display: block;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: color .2s;
        }
        a:hover {
            color: var(--primary-hover);
        }
        button,
        input {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
        }
        ul {
            list-style: none;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: #fff;
            box-shadow: 0 1px 0 var(--border);
        }
        .header-top {
            max-width: 1200px;
            margin: 0 auto;
            padding: 14px 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }
        .brand {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .brand-logo {
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 4px 12px rgba(255, 107, 26, 0.25);
        }
        .brand-name {
            font-size: 22px;
            font-weight: 800;
            color: var(--dark);
            letter-spacing: -0.5px;
        }
        .brand-name span {
            font-size: 12px;
            font-weight: 600;
            color: var(--text-weak);
            margin-left: 2px;
            letter-spacing: 0;
            vertical-align: super;
        }
        .header-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .header-login {
            font-size: 14px;
            font-weight: 600;
            color: var(--dark);
            padding: 8px 0;
            border-bottom: 2px solid transparent;
            transition: all .2s;
        }
        .header-login:hover {
            color: var(--primary);
            border-bottom-color: var(--primary);
        }
        .btn-download {
            display: inline-block;
            background: var(--dark);
            color: #fff;
            font-size: 14px;
            font-weight: 600;
            padding: 9px 20px;
            border-radius: 20px;
            transition: all .2s;
        }
        .btn-download:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-1px);
        }
        .nav-bar {
            border-top: 1px solid var(--border);
            background: #fff;
        }
        .nav-links {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
            display: flex;
            gap: 8px;
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
        }
        .nav-links a {
            flex-shrink: 0;
            display: inline-block;
            padding: 10px 22px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-light);
            border-radius: 20px;
            transition: all .2s;
            line-height: 1.4;
        }
        .nav-links a:hover {
            color: var(--primary);
            background: var(--primary-soft);
        }
        .nav-links a.active {
            background: var(--primary);
            color: #fff;
            font-weight: 600;
        }
        .hero-category {
            position: relative;
            background: var(--dark);
            background-image: url('/assets/images/coverpic/cover-1.png');
            background-size: cover;
            background-position: center;
            padding: 90px 0;
        }
        .hero-category::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(100deg, rgba(14, 27, 42, 0.92) 0%, rgba(14, 27, 42, 0.72) 60%, rgba(14, 27, 42, 0.55) 100%);
        }
        .hero-category .container {
            position: relative;
            z-index: 2;
        }
        .hero-badge {
            display: inline-block;
            background: var(--accent);
            color: var(--dark);
            font-size: 13px;
            font-weight: 700;
            padding: 4px 16px;
            border-radius: 20px;
            margin-bottom: 18px;
            letter-spacing: 1px;
        }
        .hero-category h1 {
            font-size: 42px;
            line-height: 1.2;
            font-weight: 800;
            color: #fff;
            letter-spacing: -1px;
            margin-bottom: 14px;
        }
        .hero-subtitle {
            font-size: 18px;
            color: rgba(255, 255, 255, 0.85);
            max-width: 560px;
            line-height: 1.7;
            margin-bottom: 32px;
        }
        .hero-actions {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: var(--primary);
            color: #fff;
            font-size: 15px;
            font-weight: 700;
            height: 46px;
            padding: 0 28px;
            border-radius: 10px;
            transition: all .2s;
            border: 2px solid transparent;
        }
        .btn-primary:hover {
            background: var(--primary-hover);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: 0 6px 16px rgba(255, 107, 26, 0.3);
        }
        .btn-primary:active {
            transform: translateY(0);
        }
        .btn-outline {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: transparent;
            color: #fff;
            font-size: 15px;
            font-weight: 600;
            height: 46px;
            padding: 0 28px;
            border-radius: 10px;
            border: 2px solid rgba(255, 255, 255, 0.7);
            transition: all .2s;
        }
        .btn-outline:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: rgba(255, 107, 26, 0.1);
        }
        .topic-grid {
            padding: 80px 0 40px;
        }
        .section-title {
            font-size: 28px;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 12px;
            letter-spacing: -0.5px;
            text-align: left;
        }
        .section-title-bar {
            width: 40px;
            height: 4px;
            background: var(--primary);
            border-radius: 4px;
            margin-bottom: 8px;
        }
        .section-desc {
            color: var(--text-light);
            font-size: 15px;
            max-width: 640px;
        }
        .topic-group {
            margin-bottom: 56px;
        }
        .topic-group h2 {
            font-size: 22px;
            font-weight: 700;
            color: var(--dark);
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 6px;
        }
        .topic-group h2::before {
            content: '';
            width: 18px;
            height: 4px;
            background: var(--primary);
            border-radius: 4px;
            flex-shrink: 0;
        }
        .topic-group .group-desc {
            color: var(--text-light);
            font-size: 14px;
            margin-bottom: 24px;
            padding-left: 30px;
        }
        .topic-cards {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
        }
        .topic-card {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            padding: 28px 28px 24px;
            transition: transform .25s, box-shadow .25s, border-color .25s;
            display: flex;
            gap: 18px;
        }
        .topic-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(255, 107, 26, 0.3);
        }
        .topic-card-icon {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            background: var(--primary-soft);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }
        .topic-card-icon svg {
            width: 24px;
            height: 24px;
        }
        .topic-card h3 {
            font-size: 17px;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 6px;
            line-height: 1.4;
        }
        .topic-card p {
            font-size: 14px;
            line-height: 1.75;
            color: var(--text-light);
        }
        .stats-bar {
            background: var(--dark);
            padding: 56px 0;
            margin: 40px 0;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
            text-align: center;
        }
        .stats-item .num {
            font-size: 42px;
            font-weight: 800;
            color: var(--accent);
            font-variant-numeric: tabular-nums;
            line-height: 1.2;
        }
        .stats-item .label {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.65);
            margin-top: 6px;
        }
        .feature-split {
            padding: 40px 0 80px;
        }
        .feature-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
            background: #fff;
            border-radius: 16px;
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
            overflow: hidden;
        }
        .feature-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            min-height: 340px;
        }
        .feature-content {
            padding: 40px 48px 40px 0;
        }
        .feature-content h2 {
            font-size: 24px;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 16px;
            line-height: 1.4;
        }
        .feature-content .feature-tag {
            display: inline-block;
            font-size: 12px;
            font-weight: 600;
            color: var(--primary);
            background: var(--primary-soft);
            padding: 3px 12px;
            border-radius: 20px;
            margin-bottom: 12px;
        }
        .feature-list {
            margin-top: 16px;
        }
        .feature-list li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            padding: 8px 0;
            font-size: 15px;
            color: var(--text);
            line-height: 1.6;
        }
        .feature-list li svg {
            width: 18px;
            height: 18px;
            flex-shrink: 0;
            margin-top: 4px;
        }
        .faq-section {
            padding: 20px 0 80px;
        }
        .faq-list {
            background: #fff;
            border-radius: 16px;
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
            overflow: hidden;
        }
        .faq-item {
            border-bottom: 1px solid var(--border);
            transition: background .2s;
        }
        .faq-item:last-child {
            border-bottom: none;
        }
        .faq-item.open {
            border-left: 3px solid var(--primary);
        }
        .faq-q {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 20px 28px;
            cursor: pointer;
            font-size: 16px;
            font-weight: 600;
            color: var(--dark);
            transition: all .2s;
            gap: 16px;
        }
        .faq-q:hover {
            background: var(--bg);
        }
        .faq-q .q-text {
            font-weight: 700;
        }
        .faq-q .q-text::before {
            content: 'Q：';
            color: var(--primary);
        }
        .faq-icon {
            width: 24px;
            height: 24px;
            border-radius: 50%;
            background: var(--primary-soft);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            font-weight: 700;
            flex-shrink: 0;
            transition: transform .3s;
            line-height: 1;
        }
        .faq-item.open .faq-icon {
            transform: rotate(45deg);
            background: var(--primary);
            color: #fff;
        }
        .faq-a {
            display: none;
            padding: 0 28px 22px;
            font-size: 14px;
            line-height: 1.8;
            color: var(--text-light);
        }
        .faq-a::before {
            content: 'A：';
            font-weight: 700;
            color: var(--primary);
        }
        .faq-item.open .faq-a {
            display: block;
        }
        .cta-banner {
            position: relative;
            background: var(--dark);
            background-image: radial-gradient(circle at 30% 30%, rgba(255, 107, 26, 0.3), transparent 60%), radial-gradient(circle at 75% 80%, rgba(0, 224, 122, 0.15), transparent 50%);
            padding: 80px 0;
            text-align: center;
            overflow: hidden;
        }
        .cta-banner::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, var(--primary), var(--accent), var(--primary));
            background-size: 200% 100%;
            animation: cta-strip 3s linear infinite;
        }
        @keyframes cta-strip {
            0% {
                background-position: 0% 0;
            }
            100% {
                background-position: 200% 0;
            }
        }
        .cta-banner h2 {
            font-size: 28px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 24px;
            letter-spacing: -0.5px;
            line-height: 1.4;
        }
        .cta-banner .btn-primary {
            min-width: 180px;
        }
        .site-nav-section {
            padding: 60px 0 80px;
            background: #fff;
        }
        .site-nav-section h2 {
            font-size: 22px;
            font-weight: 700;
            text-align: center;
            margin-bottom: 28px;
            color: var(--dark);
        }
        .site-nav-links {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }
        .site-nav-links a {
            display: inline-block;
            padding: 12px 32px;
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: 30px;
            font-size: 15px;
            font-weight: 600;
            color: var(--dark);
            transition: all .25s;
        }
        .site-nav-links a:hover {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            transform: translateY(-2px);
        }
        .site-footer {
            background: var(--dark);
            color: #afb5bd;
            padding: 64px 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr;
            gap: 48px;
            padding-bottom: 40px;
        }
        .footer-brand .brand-name {
            color: #fff;
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            color: #8b949e;
            margin-top: 16px;
            max-width: 340px;
        }
        .footer-title {
            font-size: 16px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 18px;
        }
        .footer-links li {
            margin-bottom: 10px;
        }
        .footer-links a {
            color: #8b949e;
            font-size: 14px;
            transition: color .2s;
        }
        .footer-links a:hover {
            color: var(--primary);
        }
        .footer-contact li {
            font-size: 14px;
            color: #8b949e;
            margin-bottom: 10px;
            line-height: 1.6;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding: 20px 0;
            font-size: 13px;
            color: #6b7280;
            text-align: center;
        }
        .footer-bottom a {
            color: #8b949e;
        }
        @media (max-width: 1024px) {
            .topic-cards {
                grid-template-columns: 1fr 1fr;
            }
            .feature-grid {
                grid-template-columns: 1fr;
            }
            .feature-img img {
                min-height: 240px;
                max-height: 320px;
            }
            .feature-content {
                padding: 32px 28px;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 768px) {
            .header-top {
                padding: 12px 16px;
            }
            .nav-links {
                padding: 0 16px;
            }
            .nav-links a {
                padding: 8px 16px;
                font-size: 14px;
            }
            .brand-name {
                font-size: 20px;
            }
            .header-login {
                display: none;
            }
            .btn-download {
                padding: 8px 16px;
                font-size: 13px;
            }
            .hero-category {
                padding: 56px 0;
            }
            .hero-category h1 {
                font-size: 30px;
            }
            .hero-subtitle {
                font-size: 15px;
            }
            .topic-grid {
                padding: 56px 0 24px;
            }
            .topic-cards {
                grid-template-columns: 1fr;
            }
            .topic-card {
                padding: 22px 20px;
            }
            .section-title {
                font-size: 24px;
            }
            .stats-bar {
                padding: 44px 0;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
            .stats-item .num {
                font-size: 32px;
            }
            .faq-q {
                padding: 16px 20px;
                font-size: 15px;
            }
            .faq-a {
                padding: 0 20px 16px;
            }
            .cta-banner {
                padding: 56px 0;
            }
            .cta-banner h2 {
                font-size: 22px;
            }
            .site-nav-section {
                padding: 44px 0 56px;
            }
            .site-nav-links a {
                padding: 10px 24px;
                font-size: 14px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .footer-brand p {
                max-width: 100%;
            }
            .footer-bottom {
                padding: 16px 0;
            }
        }
        @media (max-width: 520px) {
            .hero-category h1 {
                font-size: 26px;
            }
            .hero-actions .btn-primary,
            .hero-actions .btn-outline {
                width: 100%;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
            }
            .topic-group h2 {
                font-size: 19px;
            }
            .topic-group .group-desc {
                padding-left: 0;
            }
            .feature-content h2 {
                font-size: 20px;
            }
            .faq-q .q-text {
                line-height: 1.5;
            }
        }

/* roulang page: category2 */
:root {
            --primary: #FF6B1A;
            --primary-light: rgba(255, 107, 26, 0.1);
            --primary-bd: rgba(255, 107, 26, 0.3);
            --accent: #00E07A;
            --dark: #0E1B2A;
            --bg: #F6F4F0;
            --text: #2A2A2A;
            --text-sub: #6B7280;
            --text-weak: #9CA3AF;
            --card-bd: #E8E6E1;
            --card-shadow: 0 2px 8px rgba(14, 27, 42, 0.04);
            --card-shadow-hover: 0 8px 24px rgba(255, 107, 26, 0.10);
            --radius: 12px;
            --radius-sm: 8px;
            --tr: all 0.2s ease;
            --container: 1200px;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            background: var(--bg);
            color: var(--text);
            line-height: 1.6;
            font-size: 16px;
        }

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

        a {
            text-decoration: none;
            color: inherit;
        }

        ul,
        ol {
            list-style: none;
        }

        button,
        input {
            font-family: inherit;
            border: none;
            outline: none;
        }

        .container {
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 20px;
        }

        /* ===== Header & Navigation ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: #fff;
            box-shadow: 0 2px 12px rgba(14, 27, 42, 0.06);
        }

        .header-top {
            display: flex;
            align-items: center;
            justify-content: space-between;
            max-width: var(--container);
            margin: 0 auto;
            padding: 12px 20px;
        }

        .brand {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .brand-logo {
            width: 32px;
            height: 32px;
            background: var(--primary);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }

        .brand-name {
            font-size: 21px;
            font-weight: 800;
            color: var(--dark);
            letter-spacing: 0.5px;
        }

        .brand-name span {
            font-size: 13px;
            font-weight: 600;
            color: var(--text-weak);
            margin-left: 2px;
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .header-login {
            font-size: 14px;
            font-weight: 500;
            color: var(--dark);
            padding: 8px 16px;
            border-radius: 20px;
            transition: var(--tr);
        }

        .header-login:hover {
            background: var(--primary-light);
            color: var(--primary);
        }

        .btn-download {
            display: inline-block;
            background: var(--dark);
            color: #fff;
            font-size: 14px;
            font-weight: 600;
            padding: 9px 20px;
            border-radius: 20px;
            transition: var(--tr);
        }

        .btn-download:hover {
            background: var(--primary);
        }

        .nav-bar {
            border-top: 1px solid #F0EEEA;
            background: #fff;
        }

        .nav-links {
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 20px;
            display: flex;
            gap: 8px;
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: none;
        }

        .nav-links::-webkit-scrollbar {
            display: none;
        }

        .nav-links a {
            display: inline-block;
            padding: 12px 20px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-sub);
            border-radius: 20px 20px 0 0;
            white-space: nowrap;
            transition: var(--tr);
            border-bottom: 2px solid transparent;
            margin-bottom: -1px;
        }

        .nav-links a:hover {
            color: var(--primary);
        }

        .nav-links a.active {
            background: var(--primary);
            color: #fff;
            font-weight: 600;
            border-radius: 20px;
            margin: 6px 0;
            padding: 8px 24px;
            border-bottom: none;
        }

        /* ===== Hero ===== */
        .page-hero {
            position: relative;
            background: linear-gradient(135deg, rgba(14, 27, 42, 0.85) 30%, rgba(14, 27, 42, 0.65)), url('/assets/images/coverpic/cover-1.png') center/cover no-repeat;
            padding: 90px 0 110px;
            text-align: center;
            color: #fff;
            overflow: hidden;
        }

        .page-hero::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 60px;
            background: linear-gradient(to top, var(--bg), transparent);
        }

        .page-hero h1 {
            font-size: 44px;
            font-weight: 800;
            line-height: 1.2;
            letter-spacing: 1px;
            margin-bottom: 16px;
            position: relative;
            z-index: 1;
            text-shadow: 0 2px 16px rgba(0, 0, 0, 0.25);
        }

        .page-hero p {
            font-size: 18px;
            color: rgba(255, 255, 255, 0.85);
            position: relative;
            z-index: 1;
            max-width: 600px;
            margin: 0 auto;
            line-height: 1.7;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(255, 107, 26, 0.2);
            border: 1px solid rgba(255, 107, 26, 0.4);
            color: #FFB98A;
            font-size: 13px;
            font-weight: 600;
            padding: 6px 18px;
            border-radius: 20px;
            margin-bottom: 24px;
            position: relative;
            z-index: 1;
            backdrop-filter: blur(4px);
        }

        /* ===== Breadcrumb ===== */
        .breadcrumb {
            background: #fff;
            border-bottom: 1px solid var(--card-bd);
            padding: 12px 0;
        }

        .breadcrumb .container {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-weak);
        }

        .breadcrumb a {
            color: var(--text-sub);
            transition: var(--tr);
        }

        .breadcrumb a:hover {
            color: var(--primary);
        }

        .breadcrumb .sep {
            color: #D1CCC4;
        }

        .breadcrumb .current {
            color: var(--primary);
            font-weight: 500;
        }

        /* ===== Section ===== */
        .section {
            padding: 80px 0;
        }

        .section-title-wrap {
            display: flex;
            align-items: center;
            margin-bottom: 48px;
        }

        .section-title-line {
            width: 4px;
            height: 28px;
            background: var(--primary);
            border-radius: 2px;
            margin-right: 14px;
            flex-shrink: 0;
        }

        .section-title {
            font-size: 28px;
            font-weight: 700;
            color: var(--dark);
            line-height: 1.3;
        }

        .section-sub {
            margin-top: 8px;
            font-size: 15px;
            color: var(--text-sub);
            max-width: 680px;
        }

        /* ===== Steps Sections ===== */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .step-card {
            background: #fff;
            border: 1px solid var(--card-bd);
            border-radius: var(--radius);
            padding: 32px 24px 24px;
            position: relative;
            box-shadow: var(--card-shadow);
            transition: var(--tr);
        }

        .step-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--card-shadow-hover);
            border-color: var(--primary-bd);
        }

        .step-num {
            font-size: 40px;
            font-weight: 800;
            color: var(--accent);
            font-variant-numeric: tabular-nums;
            line-height: 1;
            margin-bottom: 16px;
            display: block;
        }

        .step-card h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--dark);
            margin-bottom: 8px;
        }

        .step-card p {
            font-size: 14px;
            color: var(--text-sub);
            line-height: 1.7;
        }

        .step-arrow {
            position: absolute;
            right: -20px;
            top: 50%;
            transform: translateY(-50%);
            color: var(--primary);
            font-size: 20px;
            z-index: 2;
            display: none;
        }

        @media (min-width: 1024px) {
            .step-arrow {
                display: block;
            }
        }

        /* ===== Topic Grid ===== */
        .topic-group {
            margin-bottom: 56px;
        }

        .topic-group:last-child {
            margin-bottom: 0;
        }

        .topic-header {
            display: flex;
            align-items: center;
            margin-bottom: 28px;
        }

        .topic-line {
            width: 4px;
            height: 22px;
            background: var(--primary);
            border-radius: 2px;
            margin-right: 12px;
        }

        .topic-header h2 {
            font-size: 24px;
            font-weight: 700;
            color: var(--dark);
        }

        .topic-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }

        .topic-card {
            background: #fff;
            border: 1px solid var(--card-bd);
            border-radius: var(--radius);
            padding: 28px;
            display: flex;
            gap: 20px;
            align-items: flex-start;
            box-shadow: var(--card-shadow);
            transition: var(--tr);
        }

        .topic-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--card-shadow-hover);
            border-color: var(--primary-bd);
        }

        .topic-icon {
            width: 52px;
            height: 52px;
            background: var(--primary-light);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }

        .topic-icon svg {
            width: 24px;
            height: 24px;
        }

        .topic-content h3 {
            font-size: 17px;
            font-weight: 600;
            color: var(--dark);
            margin-bottom: 6px;
        }

        .topic-content p {
            font-size: 14px;
            color: var(--text-sub);
            line-height: 1.7;
        }

        /* ===== Notice ===== */
        .notice-section {
            background: #fff;
        }

        .notice-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .notice-card {
            background: var(--bg);
            border: 1px solid var(--card-bd);
            border-radius: var(--radius);
            padding: 32px 28px;
            transition: var(--tr);
        }

        .notice-card:hover {
            border-color: var(--primary-bd);
            background: #fff;
            box-shadow: var(--card-shadow-hover);
        }

        .notice-icon {
            width: 40px;
            height: 40px;
            border-radius: 10px;
            background: var(--primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 16px;
            font-size: 20px;
        }

        .notice-card h3 {
            font-size: 17px;
            font-weight: 600;
            color: var(--dark);
            margin-bottom: 8px;
        }

        .notice-card p {
            font-size: 14px;
            color: var(--text-sub);
            line-height: 1.75;
        }

        /* ===== FAQ ===== */
        .faq-section {
            background: var(--bg);
        }

        .faq-wrapper {
            max-width: 860px;
            margin: 0 auto;
            background: #fff;
            border-radius: var(--radius);
            border: 1px solid var(--card-bd);
            box-shadow: var(--card-shadow);
            overflow: hidden;
        }

        .faq-item {
            border-bottom: 1px solid #F0EEEA;
            transition: var(--tr);
        }

        .faq-item:last-child {
            border-bottom: none;
        }

        .faq-q {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 24px 28px;
            cursor: pointer;
            font-size: 16px;
            font-weight: 600;
            color: var(--dark);
            transition: var(--tr);
            position: relative;
            border-left: 2px solid transparent;
        }

        .faq-q:hover {
            background: #FAFAF8;
        }

        .faq-q .icon-plus {
            width: 24px;
            height: 24px;
            flex-shrink: 0;
            position: relative;
            transition: var(--tr);
        }

        .faq-q .icon-plus::before,
        .faq-q .icon-plus::after {
            content: '';
            position: absolute;
            background: var(--primary);
            border-radius: 2px;
            transition: var(--tr);
        }

        .faq-q .icon-plus::before {
            width: 14px;
            height: 2px;
            top: 11px;
            left: 5px;
        }

        .faq-q .icon-plus::after {
            width: 2px;
            height: 14px;
            left: 11px;
            top: 5px;
        }

        .faq-item.open .faq-q {
            border-left-color: var(--primary);
            color: var(--primary);
        }

        .faq-item.open .icon-plus {
            transform: rotate(45deg);
        }

        .faq-a {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease, padding 0.3s ease;
            padding: 0 28px;
            font-size: 14px;
            color: var(--text-sub);
            line-height: 1.8;
        }

        .faq-item.open .faq-a {
            max-height: 300px;
            padding: 0 28px 24px;
        }

        /* ===== CTA ===== */
        .cta-banner {
            position: relative;
            background: var(--dark);
            padding: 70px 20px;
            text-align: center;
            overflow: hidden;
        }

        .cta-banner::before {
            content: '';
            position: absolute;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(255, 107, 26, 0.35), transparent 70%);
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
        }

        .cta-banner::after {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: repeating-linear-gradient(135deg, rgba(255, 255, 255, 0.02) 0, rgba(255, 255, 255, 0.02) 2px, transparent 2px, transparent 12px);
            pointer-events: none;
        }

        .cta-banner .container {
            position: relative;
            z-index: 2;
        }

        .cta-banner h2 {
            font-size: 30px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 8px;
            letter-spacing: 1px;
        }

        .cta-banner p {
            color: rgba(255, 255, 255, 0.7);
            font-size: 15px;
            margin-bottom: 32px;
        }

        .cta-btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--primary);
            color: #fff;
            font-size: 16px;
            font-weight: 700;
            padding: 14px 36px;
            border-radius: 10px;
            transition: var(--tr);
            box-shadow: 0 4px 20px rgba(255, 107, 26, 0.35);
        }

        .cta-btn:hover {
            filter: brightness(1.08);
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(255, 107, 26, 0.45);
        }

        .cta-btn:active {
            transform: translateY(0);
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--dark);
            color: rgba(255, 255, 255, 0.7);
            padding: 60px 0 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 48px;
            padding-bottom: 40px;
        }

        .footer-brand .brand-name {
            color: #fff;
        }

        .footer-brand p {
            margin-top: 18px;
            font-size: 14px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.6);
            max-width: 360px;
        }

        .footer-title {
            color: #fff;
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 18px;
        }

        .footer-links li {
            margin-bottom: 10px;
        }

        .footer-links a {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
            transition: var(--tr);
        }

        .footer-links a:hover {
            color: var(--primary);
        }

        .footer-contact li {
            font-size: 14px;
            margin-bottom: 10px;
            color: rgba(255, 255, 255, 0.6);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding: 18px 0;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.4);
            text-align: center;
        }

        /* ===== Site Nav Area ===== */
        .site-nav-area {
            background: #fff;
            border-top: 1px solid var(--card-bd);
            padding: 28px 0;
        }

        .site-nav-area .container {
            display: flex;
            justify-content: center;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px 8px;
            font-size: 14px;
        }

        .site-nav-area a {
            color: var(--text-sub);
            padding: 6px 14px;
            border-radius: 20px;
            transition: var(--tr);
        }

        .site-nav-area a:hover {
            background: var(--primary-light);
            color: var(--primary);
        }

        .site-nav-area .sep {
            color: #D1CCC4;
            font-size: 12px;
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }

            .step-arrow {
                display: none;
            }

            .notice-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .topic-grid {
                grid-template-columns: 1fr;
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            .header-top {
                padding: 10px 16px;
            }

            .brand-name {
                font-size: 18px;
            }

            .header-login {
                display: none;
            }

            .btn-download {
                padding: 8px 16px;
                font-size: 13px;
            }

            .nav-links {
                padding: 0 12px;
            }

            .nav-links a {
                font-size: 14px;
                padding: 10px 14px;
            }

            .page-hero {
                padding: 70px 0 90px;
            }

            .page-hero h1 {
                font-size: 30px;
            }

            .page-hero p {
                font-size: 16px;
            }

            .section {
                padding: 56px 0;
            }

            .section-title-wrap {
                margin-bottom: 32px;
            }

            .section-title {
                font-size: 24px;
            }

            .topic-card {
                flex-direction: column;
                gap: 12px;
                padding: 24px 20px;
            }

            .topic-icon {
                width: 44px;
                height: 44px;
            }

            .cta-banner {
                padding: 50px 20px;
            }

            .cta-banner h2 {
                font-size: 26px;
            }
        }

        @media (max-width: 520px) {
            .steps-grid {
                grid-template-columns: 1fr;
            }

            .notice-grid {
                grid-template-columns: 1fr;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }

            .site-nav-area .container {
                gap: 8px;
            }

            .site-nav-area a {
                font-size: 13px;
                padding: 4px 10px;
            }
        }