/* roulang page: index */
/* ===== 设计变量 ===== */
    :root {
        --primary: #4A7A9B;
        --primary-deep: #2D5269;
        --primary-darker: #263E4E;
        --accent: #A47C48;
        --bg: #F5F6F7;
        --card-bg: #FFFFFF;
        --text: #3D4A54;
        --text-weak: #7A8690;
        --border: #E6EAED;
        --input-border: #D8E0E5;
        --success: #5E8C6A;
        --danger: #D45B50;
        --shadow: 0 2px 8px rgba(31,50,65,0.05), 0 10px 24px rgba(31,50,65,0.06);
        --shadow-hover: 0 6px 16px rgba(31,50,65,0.08), 0 20px 40px rgba(31,50,65,0.10);
        --radius-card: 8px;
        --radius-btn: 6px;
        --radius-pill: 999px;
        --container: 1200px;
        --transition: 0.3s ease;
        --font-main: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
        --font-serif: "Noto Serif SC", "Source Han Serif SC", "SimSun", serif;
    }

    /* ===== Reset / Base ===== */
    *,
    *::before,
    *::after {
        box-sizing: border-box;
        margin: 0;
        padding: 0;
    }

    html {
        scroll-behavior: smooth;
    }

    body {
        font-family: var(--font-main);
        font-size: 16px;
        line-height: 1.75;
        color: var(--text);
        background-color: var(--bg);
        -webkit-font-smoothing: antialiased;
        -moz-osx-font-smoothing: grayscale;
    }

    body.no-scroll {
        overflow: hidden;
    }

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

    a {
        color: var(--primary);
        text-decoration: none;
        transition: color var(--transition), border-color var(--transition);
    }

    a:hover {
        color: #3A6685;
        text-decoration: underline;
    }

    ul,
    ol {
        list-style: none;
    }

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

    input,
    textarea {
        font-family: inherit;
        font-size: inherit;
    }

    h1,
    h2,
    h3 {
        color: var(--primary-deep);
        line-height: 1.3;
        font-weight: 700;
    }

    .container {
        width: 100%;
        max-width: var(--container);
        margin: 0 auto;
        padding: 0 24px;
    }

    .section {
        padding: 88px 0;
    }

    .section-header {
        text-align: center;
        margin-bottom: 56px;
    }

    .section-title {
        font-size: 34px;
        margin-bottom: 12px;
        position: relative;
        display: inline-block;
        letter-spacing: 0.02em;
    }

    .section-title::after {
        content: "";
        display: block;
        width: 48px;
        height: 4px;
        background: var(--accent);
        border-radius: 2px;
        margin: 14px auto 0;
    }

    .section-subtitle {
        font-size: 16px;
        color: var(--text-weak);
        margin-top: 18px;
        max-width: 640px;
        margin-left: auto;
        margin-right: auto;
        text-align: center;
    }

    .section-line {
        border: none;
        border-top: 1px solid var(--border);
        width: 100%;
        margin: 0;
    }

    /* ===== 按钮 ===== */
    .btn {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        padding: 12px 28px;
        font-size: 15px;
        font-weight: 600;
        border-radius: var(--radius-btn);
        transition: all var(--transition);
        line-height: 1.4;
        text-decoration: none;
        border: 2px solid transparent;
        min-height: 46px;
    }

    .btn i {
        margin-left: 8px;
        font-size: 13px;
        transition: transform var(--transition);
    }

    .btn:hover {
        text-decoration: none;
    }

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

    .btn-primary:hover {
        background: #3A6685;
        border-color: #3A6685;
        color: #fff;
        transform: translateY(-2px);
        box-shadow: 0 8px 20px rgba(74, 122, 155, 0.25);
    }

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

    .btn-outline:hover {
        background: var(--primary-deep);
        color: #fff;
        transform: translateY(-2px);
        box-shadow: 0 8px 20px rgba(45, 82, 105, 0.2);
    }

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

    .btn-light:hover {
        background: var(--bg);
        color: var(--primary-deep);
        transform: translateY(-2px);
        box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
    }

    .btn-block {
        width: 100%;
    }

    /* ===== 标签 / 徽章 ===== */
    .tag {
        display: inline-block;
        background: rgba(74, 122, 155, 0.10);
        color: var(--primary-deep);
        font-size: 13px;
        font-weight: 500;
        padding: 4px 12px;
        border-radius: var(--radius-pill);
        line-height: 1.4;
    }

    .date-tag {
        display: inline-block;
        background: var(--primary-deep);
        color: #fff;
        font-size: 12px;
        padding: 3px 10px;
        border-radius: 4px;
        line-height: 1.4;
        font-feature-settings: "tnum";
    }

    /* ===== 导航 ===== */
    .site-header {
        background: #fff;
        border-bottom: 1px solid var(--border);
        position: sticky;
        top: 0;
        z-index: 100;
        box-shadow: 0 2px 8px rgba(31, 50, 65, 0.04);
    }

    .header-inner {
        display: flex;
        align-items: center;
        justify-content: space-between;
        height: 76px;
        max-width: var(--container);
        margin: 0 auto;
        padding: 0 24px;
        position: relative;
    }

    .nav-left,
    .nav-right {
        display: flex;
        align-items: center;
        gap: 4px;
        flex: 1;
    }

    .nav-left {
        justify-content: flex-start;
    }

    .nav-right {
        justify-content: flex-end;
    }

    .nav-link {
        display: inline-block;
        padding: 8px 16px;
        font-size: 15px;
        font-weight: 500;
        color: var(--text);
        border-radius: 4px;
        position: relative;
        text-decoration: none;
        transition: color var(--transition);
    }

    .nav-link::after {
        content: "";
        position: absolute;
        bottom: 0;
        left: 16px;
        right: 16px;
        height: 2px;
        background: var(--primary);
        border-radius: 1px;
        transform: scaleX(0);
        transform-origin: center;
        transition: transform var(--transition);
    }

    .nav-link:hover {
        color: var(--primary);
        text-decoration: none;
    }

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

    .nav-link.active {
        color: var(--primary);
        font-weight: 600;
    }

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

    .brand-logo {
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        text-decoration: none;
        line-height: 1.1;
        padding: 4px 12px;
        flex-shrink: 0;
        position: absolute;
        left: 50%;
        transform: translateX(-50%);
        top: 50%;
        margin-top: -24px;
    }

    .brand-logo:hover {
        text-decoration: none;
    }

    .brand-mark {
        font-size: 26px;
        font-weight: 800;
        color: var(--primary-deep);
        letter-spacing: 0.04em;
        font-family: var(--font-serif);
    }

    .brand-sub {
        font-size: 11px;
        color: var(--text-weak);
        letter-spacing: 0.22em;
        margin-top: 2px;
        font-weight: 400;
        text-transform: none;
    }

    .nav-toggle {
        display: none;
        font-size: 22px;
        color: var(--primary-deep);
        padding: 6px;
        border-radius: 4px;
        transition: background var(--transition);
    }

    .nav-toggle:hover {
        background: var(--bg);
    }

    /* 移动端菜单 */
    .mobile-menu {
        display: none;
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: #fff;
        z-index: 200;
        flex-direction: column;
        padding: 80px 32px 40px;
        overflow-y: auto;
    }

    .mobile-menu.open {
        display: flex;
    }

    .mobile-menu-close {
        position: absolute;
        top: 20px;
        right: 24px;
        font-size: 24px;
        color: var(--primary-deep);
        padding: 8px;
    }

    .mobile-menu-link {
        font-size: 18px;
        font-weight: 500;
        color: var(--text);
        padding: 16px 0;
        border-bottom: 1px solid var(--border);
        display: block;
        text-decoration: none;
    }

    .mobile-menu-link:hover {
        color: var(--primary);
        text-decoration: none;
    }

    .mobile-menu-link.active {
        color: var(--primary);
        font-weight: 600;
    }

    .mobile-menu-brand {
        font-size: 22px;
        font-weight: 800;
        color: var(--primary-deep);
        margin-bottom: 24px;
        text-align: center;
        font-family: var(--font-serif);
    }

    /* ===== Hero ===== */
    .hero {
        position: relative;
        min-height: 70vh;
        display: flex;
        align-items: center;
        background-image: url('/assets/images/backpic/back-1.png');
        background-size: cover;
        background-position: center;
        background-repeat: no-repeat;
        padding: 100px 0 90px;
        overflow: hidden;
    }

    .hero::before {
        content: "";
        position: absolute;
        inset: 0;
        background: linear-gradient(100deg, rgba(255, 255, 255, 0.92) 0%, rgba(255, 255, 255, 0.75) 40%, rgba(255, 255, 255, 0.35) 100%);
        pointer-events: none;
    }

    .hero-content {
        position: relative;
        z-index: 2;
        max-width: 680px;
    }

    .hero-title {
        font-size: 44px;
        font-weight: 700;
        color: var(--primary-deep);
        line-height: 1.25;
        margin-bottom: 20px;
        font-family: var(--font-serif);
        letter-spacing: 0.02em;
    }

    .hero-subtitle {
        font-size: 17px;
        color: #5A6B76;
        line-height: 1.8;
        margin-bottom: 36px;
        max-width: 560px;
    }

    .hero-actions {
        display: flex;
        gap: 16px;
        flex-wrap: wrap;
    }

    .hero-meta {
        display: flex;
        gap: 28px;
        margin-top: 48px;
        flex-wrap: wrap;
    }

    .hero-meta-item {
        display: flex;
        flex-direction: column;
        gap: 2px;
    }

    .hero-meta-num {
        font-size: 28px;
        font-weight: 700;
        color: var(--primary-deep);
        font-feature-settings: "tnum";
        font-family: var(--font-serif);
    }

    .hero-meta-label {
        font-size: 13px;
        color: var(--text-weak);
    }

    /* ===== 品牌故事 ===== */
    .story-section {
        background: #fff;
        padding: 96px 0;
    }

    .story-grid {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 64px;
        align-items: center;
    }

    .story-text h2 {
        font-size: 32px;
        margin-bottom: 20px;
        font-family: var(--font-serif);
        position: relative;
        padding-left: 16px;
    }

    .story-text h2::before {
        content: "";
        position: absolute;
        left: 0;
        top: 0;
        bottom: 0;
        width: 4px;
        background: var(--accent);
        border-radius: 2px;
    }

    .story-text p {
        font-size: 16px;
        line-height: 1.8;
        color: var(--text);
        margin-bottom: 18px;
    }

    .story-visual {
        position: relative;
        border-radius: var(--radius-card);
        overflow: hidden;
        box-shadow: var(--shadow);
    }

    .story-visual img {
        width: 100%;
        height: 380px;
        object-fit: cover;
        transition: transform 0.5s ease;
    }

    .story-visual:hover img {
        transform: scale(1.02);
    }

    .data-panel {
        position: absolute;
        bottom: 20px;
        left: 20px;
        right: 20px;
        background: rgba(255, 255, 255, 0.94);
        border-radius: var(--radius-card);
        padding: 18px 24px;
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 16px;
        box-shadow: var(--shadow-hover);
        backdrop-filter: none;
        border: 1px solid rgba(255, 255, 255, 0.6);
    }

    .data-item {
        text-align: center;
    }

    .data-item + .data-item {
        border-left: 1px solid var(--border);
    }

    .data-number {
        font-size: 20px;
        font-weight: 700;
        color: var(--primary-deep);
        font-family: var(--font-serif);
        font-feature-settings: "tnum";
    }

    .data-label {
        font-size: 12px;
        color: var(--text-weak);
        margin-top: 4px;
        line-height: 1.4;
    }

    /* ===== 精选内容卡 ===== */
    .featured-section {
        background: var(--bg);
        padding: 96px 0;
    }

    .cards-grid {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 28px;
    }

    .content-card {
        background: var(--card-bg);
        border-radius: var(--radius-card);
        overflow: hidden;
        box-shadow: var(--shadow);
        transition: box-shadow var(--transition), transform var(--transition);
        display: flex;
        flex-direction: column;
        border: 1px solid var(--border);
    }

    .content-card:hover {
        box-shadow: var(--shadow-hover);
        transform: translateY(-3px);
    }

    .card-image {
        position: relative;
        overflow: hidden;
        aspect-ratio: 16 / 9;
        background: #EDF1F3;
    }

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

    .content-card:hover .card-image img {
        transform: scale(1.03);
    }

    .card-image-placeholder {
        display: flex;
        align-items: center;
        justify-content: center;
        width: 100%;
        height: 100%;
        font-size: 36px;
        color: var(--primary);
        background: #EDF1F3;
    }

    .card-tag-wrap {
        position: absolute;
        top: 12px;
        left: 12px;
        background: rgba(255, 255, 255, 0.92);
        border-radius: var(--radius-pill);
        padding: 2px 2px;
    }

    .card-body {
        padding: 24px 24px 22px;
        display: flex;
        flex-direction: column;
        flex: 1;
    }

    .card-body .tag {
        align-self: flex-start;
        margin-bottom: 12px;
    }

    .card-title {
        font-size: 20px;
        font-weight: 600;
        color: var(--primary-deep);
        margin-bottom: 10px;
        line-height: 1.4;
        font-family: var(--font-serif);
        display: -webkit-box;
        -webkit-line-clamp: 2;
        -webkit-box-orient: vertical;
        overflow: hidden;
    }

    .card-title a {
        color: inherit;
        text-decoration: none;
        transition: color var(--transition);
    }

    .card-title a:hover {
        color: var(--primary);
        text-decoration: none;
    }

    .card-excerpt {
        font-size: 14px;
        color: var(--text-weak);
        line-height: 1.7;
        margin-bottom: 16px;
        display: -webkit-box;
        -webkit-line-clamp: 2;
        -webkit-box-orient: vertical;
        overflow: hidden;
        flex: 1;
    }

    .card-link {
        font-size: 14px;
        font-weight: 500;
        color: var(--primary);
        display: inline-flex;
        align-items: center;
        gap: 6px;
        text-decoration: none;
        border-top: 1px solid var(--border);
        padding-top: 14px;
        margin-top: 4px;
        transition: gap var(--transition), color var(--transition);
    }

    .card-link i {
        font-size: 12px;
        transition: transform var(--transition);
    }

    .card-link:hover {
        color: #3A6685;
        text-decoration: none;
        gap: 10px;
    }

    .card-link:hover i {
        transform: translateX(4px);
    }

    /* ===== 最新动态（CMS） ===== */
    .news-section {
        background: #fff;
        padding: 96px 0;
    }

    .news-grid {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 28px;
    }

    .news-card {
        background: var(--card-bg);
        border: 1px solid var(--border);
        border-radius: var(--radius-card);
        padding: 24px;
        box-shadow: var(--shadow);
        transition: box-shadow var(--transition), transform var(--transition);
        display: flex;
        flex-direction: column;
    }

    .news-card:hover {
        box-shadow: var(--shadow-hover);
        transform: translateY(-3px);
    }

    .news-meta {
        display: flex;
        align-items: center;
        gap: 10px;
        margin-bottom: 14px;
        flex-wrap: wrap;
    }

    .news-date {
        font-size: 13px;
        color: var(--text-weak);
        font-feature-settings: "tnum";
    }

    .news-title {
        font-size: 18px;
        font-weight: 600;
        color: var(--primary-deep);
        margin-bottom: 10px;
        line-height: 1.45;
        font-family: var(--font-serif);
    }

    .news-title a {
        color: inherit;
        text-decoration: none;
        transition: color var(--transition);
    }

    .news-title a:hover {
        color: var(--primary);
        text-decoration: none;
    }

    .news-excerpt {
        font-size: 14px;
        color: var(--text-weak);
        line-height: 1.7;
        margin-bottom: 14px;
        display: -webkit-box;
        -webkit-line-clamp: 2;
        -webkit-box-orient: vertical;
        overflow: hidden;
        flex: 1;
    }

    .read-more {
        font-size: 14px;
        font-weight: 500;
        color: var(--primary);
        display: inline-flex;
        align-items: center;
        gap: 6px;
        text-decoration: none;
        transition: gap var(--transition), color var(--transition);
    }

    .read-more i {
        font-size: 12px;
    }

    .read-more:hover {
        color: #3A6685;
        text-decoration: none;
        gap: 10px;
    }

    /* 空态 */
    .empty-state {
        background: #F0F2F4;
        border-radius: var(--radius-card);
        padding: 48px 24px;
        text-align: center;
        grid-column: 1 / -1;
    }

    .empty-state i {
        font-size: 32px;
        color: #A0AAB2;
        margin-bottom: 12px;
        display: block;
    }

    .empty-state p {
        font-size: 15px;
        color: var(--text-weak);
    }

    /* ===== 信任背书 ===== */
    .trust-section {
        background: var(--bg);
        padding: 88px 0;
    }

    .trust-grid {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: 32px;
    }

    .trust-item {
        background: var(--card-bg);
        border: 1px solid var(--border);
        border-radius: var(--radius-card);
        padding: 32px 24px;
        text-align: center;
        transition: box-shadow var(--transition), transform var(--transition);
    }

    .trust-item:hover {
        box-shadow: var(--shadow-hover);
        transform: translateY(-3px);
    }

    .trust-icon {
        width: 56px;
        height: 56px;
        margin: 0 auto 16px;
        border-radius: 50%;
        background: rgba(74, 122, 155, 0.10);
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 22px;
        color: var(--primary);
    }

    .trust-title {
        font-size: 16px;
        font-weight: 600;
        color: var(--primary-deep);
        margin-bottom: 6px;
    }

    .trust-desc {
        font-size: 13px;
        color: var(--text-weak);
        line-height: 1.6;
    }

    /* ===== FAQ ===== */
    .faq-section {
        background: #fff;
        padding: 96px 0;
    }

    .faq-list {
        max-width: 800px;
        margin: 0 auto;
    }

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

    .faq-item:first-child {
        border-top: 1px solid var(--border);
    }

    .faq-question {
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 16px;
        padding: 18px 0;
        width: 100%;
        text-align: left;
        font-size: 17px;
        font-weight: 500;
        color: var(--primary-deep);
        background: none;
        border: none;
        cursor: pointer;
        min-height: 56px;
        transition: color var(--transition);
    }

    .faq-question:hover {
        color: var(--primary);
    }

    .faq-icon {
        font-size: 18px;
        color: var(--primary);
        flex-shrink: 0;
        transition: transform 0.25s ease;
    }

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

    .faq-answer-wrap {
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.3s ease;
    }

    .faq-answer {
        padding: 0 0 18px;
        font-size: 15px;
        color: var(--text-weak);
        line-height: 1.75;
    }

    /* ===== CTA区 ===== */
    .cta-section {
        background: var(--primary-darker);
        padding: 88px 0;
        position: relative;
        overflow: hidden;
    }

    .cta-section::before {
        content: "";
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        height: 3px;
        background: var(--accent);
    }

    .cta-inner {
        text-align: center;
        max-width: 640px;
        margin: 0 auto;
        padding: 0 24px;
    }

    .cta-title {
        font-size: 32px;
        color: #fff;
        font-weight: 700;
        margin-bottom: 14px;
        font-family: var(--font-serif);
    }

    .cta-subtitle {
        font-size: 16px;
        color: #B8C6CE;
        line-height: 1.7;
        margin-bottom: 32px;
    }

    .cta-actions {
        display: flex;
        gap: 16px;
        justify-content: center;
        flex-wrap: wrap;
    }

    /* ===== 页脚 ===== */
    .site-footer {
        background: var(--primary-darker);
        border-top: 1px solid #395668;
        color: #B8C6CE;
        padding-top: 72px;
    }

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

    .footer-brand-name {
        font-size: 22px;
        font-weight: 800;
        color: #fff;
        margin-bottom: 8px;
        font-family: var(--font-serif);
        letter-spacing: 0.03em;
    }

    .footer-desc {
        font-size: 14px;
        line-height: 1.7;
        color: #A5B4BF;
        margin-top: 14px;
        max-width: 360px;
    }

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

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

    .footer-links a {
        font-size: 14px;
        color: #A5B4BF;
        text-decoration: none;
        transition: color var(--transition), padding-left var(--transition);
    }

    .footer-links a:hover {
        color: #fff;
        padding-left: 4px;
        text-decoration: none;
    }

    .footer-contact {
        font-size: 14px;
        line-height: 1.8;
        color: #A5B4BF;
    }

    .footer-contact i {
        width: 20px;
        color: var(--primary);
        margin-right: 4px;
    }

    .footer-contact div {
        margin-bottom: 10px;
    }

    .footer-bottom {
        border-top: 1px solid #395668;
        padding: 28px 0;
        display: flex;
        align-items: center;
        justify-content: space-between;
        flex-wrap: wrap;
        gap: 12px;
        font-size: 13px;
        color: #8A9AA6;
    }

    .footer-bottom a {
        color: #A5B4BF;
        text-decoration: none;
    }

    .footer-bottom a:hover {
        color: #fff;
    }

    /* ===== 其他组件 ===== */
    .hero-bottom-line {
        border: none;
        border-top: 1px solid var(--border);
        margin: 0;
    }

    .text-center {
        text-align: center;
    }

    .mt-40 {
        margin-top: 40px;
    }

    /* ===== 响应式 ===== */
    @media (max-width: 1024px) {
        .container {
            padding: 0 20px;
        }

        .header-inner {
            height: 68px;
        }

        .nav-left,
        .nav-right {
            display: none;
        }

        .brand-logo {
            position: static;
            transform: none;
            margin-top: 0;
            margin-right: auto;
        }

        .nav-toggle {
            display: inline-flex;
            margin-left: auto;
            font-size: 20px;
            padding: 8px;
            border: 1px solid var(--border);
            border-radius: 6px;
            align-items: center;
            justify-content: center;
            width: 42px;
            height: 42px;
        }

        .hero {
            min-height: auto;
            padding: 72px 0;
        }

        .hero::before {
            background: linear-gradient(100deg, rgba(255, 255, 255, 0.95) 0%, rgba(255, 255, 255, 0.80) 60%, rgba(255, 255, 255, 0.50) 100%);
        }

        .hero-title {
            font-size: 36px;
        }

        .story-grid {
            grid-template-columns: 1fr;
            gap: 40px;
        }

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

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

        .trust-grid {
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }

        .footer-grid {
            grid-template-columns: 1fr 1fr;
            gap: 40px;
        }

        .section {
            padding: 72px 0;
        }
    }

    @media (max-width: 767px) {
        .container {
            padding: 0 16px;
        }

        .section {
            padding: 56px 0;
        }

        .section-title {
            font-size: 26px;
        }

        .section-header {
            margin-bottom: 40px;
        }

        .hero {
            padding: 56px 0;
        }

        .hero-title {
            font-size: 30px;
        }

        .hero-subtitle {
            font-size: 15px;
        }

        .hero-actions {
            flex-direction: column;
            gap: 12px;
        }

        .hero-actions .btn {
            width: 100%;
        }

        .hero-meta {
            gap: 20px;
            margin-top: 32px;
        }

        .hero-meta-num {
            font-size: 24px;
        }

        .story-text h2 {
            font-size: 26px;
        }

        .story-visual img {
            height: 260px;
        }

        .data-panel {
            grid-template-columns: 1fr;
            gap: 12px;
            position: static;
            margin-top: 16px;
        }

        .data-item + .data-item {
            border-left: none;
            border-top: 1px solid var(--border);
            padding-top: 10px;
        }

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

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

        .trust-grid {
            grid-template-columns: 1fr 1fr;
            gap: 14px;
        }

        .trust-item {
            padding: 24px 16px;
        }

        .trust-icon {
            width: 44px;
            height: 44px;
            font-size: 18px;
        }

        .cta-title {
            font-size: 26px;
        }

        .cta-actions {
            flex-direction: column;
            gap: 12px;
        }

        .cta-actions .btn {
            width: 100%;
        }

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

        .footer-bottom {
            flex-direction: column;
            text-align: center;
        }

        .mobile-menu {
            padding: 80px 24px 32px;
        }
    }

    @media (max-width: 520px) {
        .section {
            padding: 48px 0;
        }

        .hero {
            padding: 44px 0;
        }

        .hero-title {
            font-size: 27px;
            line-height: 1.3;
        }

        .cards-grid,
        .news-grid {
            grid-template-columns: 1fr;
        }

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

        .btn {
            padding: 11px 20px;
            font-size: 14px;
        }

        .brand-mark {
            font-size: 22px;
        }

        .brand-sub {
            font-size: 10px;
        }
    }

    /* 焦点可访问性 */
    a:focus-visible,
    button:focus-visible {
        outline: 3px solid rgba(74, 122, 155, 0.35);
        outline-offset: 2px;
        border-radius: 4px;
    }

/* roulang page: category1 */
:root{
  --primary:#4A7A9B;
  --primary-dark:#2D5269;
  --primary-deeper:#263E4E;
  --accent:#A47C48;
  --bg:#F5F6F7;
  --card:#FFFFFF;
  --text:#3D4A54;
  --text-weak:#7A8690;
  --border:#E6EAED;
  --input-border:#D8E0E5;
  --success:#5E8C6A;
  --shadow-card:0 2px 8px rgba(31,50,65,0.05),0 10px 24px rgba(31,50,65,0.06);
  --shadow-hover:0 6px 16px rgba(31,50,65,0.08),0 20px 40px rgba(31,50,65,0.10);
  --radius-card:8px;
  --radius-btn:6px;
  --radius-pill:999px;
  --font-family:"Noto Sans SC","Source Han Sans SC","Microsoft YaHei",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;}
body{
  font-family:var(--font-family);
  background:var(--bg);
  color:var(--text);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{text-decoration:none;color:var(--primary);transition:color .2s ease;}
a:hover{color:#3A6685;text-decoration:none;}
ul,ol{list-style:none;}
button{font-family:inherit;cursor:pointer;border:none;background:none;}
.container{max-width:1200px;margin:0 auto;padding:0 24px;}
.section{padding:88px 0;}
.section-alt{background:var(--bg);}
.site-main::after{content:'';display:block;height:1px;width:100%;background:var(--border);}

/* Buttons */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:46px;
  padding:0 26px;
  border-radius:var(--radius-btn);
  font-size:15px;
  font-weight:600;
  border:1px solid transparent;
  transition:all .2s ease;
  line-height:1;
  white-space:nowrap;
}
.btn-primary{
  background:var(--primary);
  color:#fff;
  box-shadow:0 2px 8px rgba(74,122,155,0.18);
}
.btn-primary:hover{
  background:var(--primary-dark);
  color:#fff;
  transform:translateY(-2px);
  box-shadow:0 6px 16px rgba(74,122,155,0.25);
}
.btn-outline{
  background:transparent;
  color:var(--primary-dark);
  border-color:var(--primary);
}
.btn-outline:hover{
  background:rgba(74,122,155,0.08);
  color:var(--primary-dark);
  border-color:var(--primary-dark);
  transform:translateY(-2px);
}
.btn-light{
  background:#fff;
  color:var(--primary-dark);
  border-color:#fff;
}
.btn-light:hover{
  background:rgba(255,255,255,0.9);
  color:var(--primary);
  transform:translateY(-2px);
}
.btn-large{height:54px;padding:0 38px;font-size:16px;}

/* Header */
.site-header{
  position:sticky;
  top:0;
  z-index:100;
  background:#fff;
  border-bottom:1px solid var(--border);
  box-shadow:0 1px 12px rgba(31,50,65,0.04);
}
.header-inner{
  max-width:1200px;
  margin:0 auto;
  height:72px;
  padding:0 24px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  position:relative;
}
.nav-left,.nav-right{
  display:flex;
  align-items:center;
  gap:36px;
}
.brand-logo{
  position:absolute;
  left:50%;
  top:50%;
  transform:translate(-50%,-50%);
  display:flex;
  flex-direction:column;
  align-items:center;
  text-align:center;
  line-height:1.15;
}
.brand-mark{
  font-size:24px;
  font-weight:800;
  color:var(--primary-dark);
  letter-spacing:.02em;
}
.brand-sub{
  font-size:11px;
  color:var(--text-weak);
  letter-spacing:.22em;
  margin-top:3px;
  text-transform:uppercase;
}
.nav-link{
  font-size:15px;
  font-weight:500;
  color:var(--text);
  padding:0 2px 4px;
  position:relative;
  transition:color .2s ease;
}
.nav-link::after{
  content:'';
  position:absolute;
  left:0;
  bottom:0;
  width:0;
  height:2px;
  background:var(--primary);
  transition:width .25s ease;
  border-radius:1px;
}
.nav-link:hover{color:var(--primary);}
.nav-link:hover::after{width:100%;}
.nav-link.active{color:var(--primary);}
.nav-link.active::after{width:100%;}
.nav-toggle{
  display:none;
  width:42px;
  height:42px;
  border-radius:6px;
  align-items:center;
  justify-content:center;
  font-size:20px;
  color:var(--primary-dark);
  background:transparent;
  border:1px solid var(--border);
  transition:all .2s ease;
  cursor:pointer;
}
.nav-toggle:hover{background:var(--bg);color:var(--primary);}
.nav-toggle .fa-times{display:none;}
.nav-toggle.active .fa-bars{display:none;}
.nav-toggle.active .fa-times{display:inline;}
.mobile-nav{
  display:none;
  position:absolute;
  top:100%;
  left:0;
  right:0;
  background:#fff;
  border-bottom:1px solid var(--border);
  box-shadow:0 16px 32px rgba(31,50,65,0.08);
  padding:16px 24px 20px;
  z-index:99;
}
.mobile-nav.open{display:block;}
.mobile-link{
  display:block;
  padding:14px 0;
  font-size:17px;
  font-weight:500;
  color:var(--text);
  border-bottom:1px solid var(--border);
  transition:color .2s ease;
}
.mobile-link:last-child{border-bottom:none;}
.mobile-link:hover{color:var(--primary);}
.mobile-link.active{color:var(--primary);font-weight:700;}

/* Hero */
.page-hero{
  position:relative;
  background:linear-gradient(rgba(255,255,255,0.93),rgba(245,246,247,0.88)),url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  padding:72px 0 64px;
  border-bottom:1px solid var(--border);
}
.page-hero .breadcrumb{
  font-size:14px;
  color:var(--text-weak);
  margin-bottom:28px;
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:8px;
}
.page-hero .breadcrumb a{color:var(--primary);}
.page-hero .breadcrumb a:hover{color:var(--primary-dark);}
.page-hero .breadcrumb .separator{color:#B0BAC1;font-size:13px;line-height:1;}
.page-hero .breadcrumb .current{color:var(--text-weak);cursor:default;}
.page-hero h1{
  font-size:46px;
  font-weight:700;
  line-height:1.2;
  color:var(--primary-dark);
  letter-spacing:.01em;
  margin-bottom:16px;
}
.page-hero .hero-sub{
  font-size:18px;
  color:#5A6B76;
  max-width:560px;
  line-height:1.75;
  margin-bottom:36px;
}
.hero-actions{
  display:flex;
  gap:16px;
  flex-wrap:wrap;
}
.hero-divider{
  margin-top:56px;
  height:1px;
  background:linear-gradient(90deg,var(--border) 0%,#E6EAED 60%,transparent 100%);
}

/* Section heading */
.section-heading{
  margin-bottom:48px;
  max-width:720px;
}
.section-heading.center{margin-left:auto;margin-right:auto;text-align:center;}
.overline{
  display:inline-block;
  font-size:14px;
  font-weight:600;
  color:var(--accent);
  letter-spacing:.06em;
  margin-bottom:6px;
}
.section-heading h2{
  font-size:34px;
  font-weight:700;
  color:var(--primary-dark);
  line-height:1.3;
  letter-spacing:.01em;
}
.section-heading h2::after{
  content:'';
  display:block;
  width:44px;
  height:4px;
  background:var(--accent);
  border-radius:2px;
  margin-top:16px;
}
.section-heading.center h2::after{margin-left:auto;margin-right:auto;}
.section-heading p{
  margin-top:18px;
  font-size:16px;
  color:var(--text-weak);
  line-height:1.75;
}

/* Intro */
.intro-grid{
  display:grid;
  grid-template-columns:1.05fr 0.95fr;
  gap:64px;
  align-items:center;
}
.intro-copy p{
  font-size:16px;
  line-height:1.8;
  color:#4D5A64;
  margin-bottom:20px;
}
.intro-copy p:last-of-type{margin-bottom:28px;}
.intro-points{
  margin-top:8px;
  display:grid;
  gap:14px;
}
.intro-points li{
  display:flex;
  align-items:flex-start;
  gap:12px;
  font-size:15px;
  color:var(--text);
}
.intro-points li i{
  color:var(--primary);
  font-size:15px;
  line-height:1.7;
  margin-top:2px;
  flex-shrink:0;
}
.intro-visual{
  position:relative;
  border-radius:var(--radius-card);
  overflow:visible;
}
.intro-visual img{
  width:100%;
  aspect-ratio:4/3;
  object-fit:cover;
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-hover);
}
.intro-stat-panel{
  position:absolute;
  right:-20px;
  bottom:-28px;
  background:#fff;
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-hover);
  border:1px solid var(--border);
  padding:22px 28px;
  display:flex;
  gap:28px;
}
.stat-item{text-align:left;}
.stat-num{
  font-size:26px;
  font-weight:800;
  color:var(--primary-dark);
  font-feature-settings:"tnum";
  letter-spacing:.02em;
}
.stat-label{font-size:13px;color:var(--text-weak);margin-top:2px;}

/* Guide Cards */
.guide-cards-wrap{background:var(--bg);}
.cards-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:28px;
}
.guide-card{
  background:var(--card);
  border-radius:var(--radius-card);
  border:1px solid var(--border);
  box-shadow:var(--shadow-card);
  overflow:hidden;
  transition:transform .3s ease,box-shadow .3s ease;
}
.guide-card:hover{
  transform:translateY(-3px);
  box-shadow:var(--shadow-hover);
}
.card-thumb{
  position:relative;
  aspect-ratio:16/9;
  overflow:hidden;
}
.card-thumb img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform .3s ease;
}
.guide-card:hover .card-thumb img{transform:scale(1.03);}
.card-pill{
  position:absolute;
  top:14px;
  left:14px;
  display:inline-block;
  background:rgba(255,255,255,0.94);
  color:var(--primary-dark);
  font-size:13px;
  font-weight:600;
  padding:4px 14px;
  border-radius:var(--radius-pill);
  letter-spacing:.02em;
}
.card-body{
  padding:24px 24px 22px;
}
.card-body h3{
  font-size:20px;
  font-weight:600;
  color:var(--text);
  line-height:1.4;
  margin-bottom:12px;
  letter-spacing:.01em;
}
.card-desc{
  font-size:15px;
  line-height:1.65;
  color:var(--text-weak);
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
  min-height:50px;
  margin-bottom:16px;
}
.card-link{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:14px;
  font-weight:600;
  color:var(--primary);
  transition:gap .2s ease;
}
.card-link:hover{color:var(--primary-dark);gap:12px;}

/* Scenario */
.scenario-section{
  position:relative;
  background:linear-gradient(rgba(245,246,247,0.94),rgba(255,255,255,0.96)),url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
}
.scenario-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:28px;
}
.scenario-card{
  background:#fff;
  border-radius:var(--radius-card);
  border:1px solid var(--border);
  box-shadow:var(--shadow-card);
  padding:36px 30px;
  text-align:center;
  transition:transform .3s ease,box-shadow .3s ease;
}
.scenario-card:hover{
  transform:translateY(-4px);
  box-shadow:var(--shadow-hover);
}
.scenario-icon{
  width:64px;
  height:64px;
  border-radius:50%;
  background:rgba(74,122,155,0.10);
  display:flex;
  align-items:center;
  justify-content:center;
  margin:0 auto 20px;
  font-size:24px;
  color:var(--primary);
}
.scenario-card h3{
  font-size:20px;
  font-weight:600;
  color:var(--text);
  margin-bottom:10px;
}
.scenario-card p{
  font-size:15px;
  line-height:1.7;
  color:var(--text-weak);
}

/* Process */
.process-section{background:#fff;}
.process-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:28px;
}
.process-step{
  position:relative;
  background:var(--bg);
  border-radius:var(--radius-card);
  border:1px solid var(--border);
  padding:32px 24px 28px;
  transition:transform .3s ease,box-shadow .3s ease;
}
.process-step:hover{
  transform:translateY(-4px);
  box-shadow:var(--shadow-hover);
  background:#fff;
}
.step-num{
  display:inline-block;
  font-size:14px;
  font-weight:800;
  color:var(--accent);
  background:rgba(164,124,72,0.10);
  padding:2px 12px;
  border-radius:var(--radius-pill);
  letter-spacing:.04em;
  margin-bottom:18px;
  font-feature-settings:"tnum";
}
.process-step h3{
  font-size:18px;
  font-weight:600;
  color:var(--text);
  margin-bottom:10px;
}
.process-step p{
  font-size:14px;
  line-height:1.7;
  color:var(--text-weak);
}

/* FAQ */
.faq-section{background:var(--bg);}
.faq-list{
  max-width:760px;
  margin:0 auto;
}
.faq-item{
  border-bottom:1px solid var(--border);
  position:relative;
}
.faq-item:first-child{border-top:1px solid var(--border);}
.faq-toggle{display:none;}
.faq-question{
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:20px;
  padding:22px 0;
  cursor:pointer;
  min-height:56px;
}
.faq-question span{
  font-size:17px;
  font-weight:600;
  color:var(--text);
  line-height:1.5;
  transition:color .2s ease;
}
.faq-question:hover span{color:var(--primary);}
.faq-icon{
  font-size:16px;
  color:var(--primary);
  transition:transform .25s ease;
  flex-shrink:0;
}
.faq-answer{
  max-height:0;
  overflow:hidden;
  transition:max-height .25s ease;
}
.faq-answer p{
  font-size:15px;
  line-height:1.85;
  color:var(--text-weak);
  padding-bottom:0;
  padding-right:36px;
}
.faq-toggle:checked + .faq-question + .faq-answer{
  max-height:320px;
}
.faq-toggle:checked + .faq-question .faq-icon{
  transform:rotate(45deg);
}
.faq-toggle:checked + .faq-question span{
  color:var(--primary);
}

/* CTA */
.cta-section{
  background:var(--primary-deeper);
  position:relative;
  overflow:hidden;
  padding:80px 0;
}
.cta-section::before{
  content:'';
  position:absolute;
  right:-120px;
  top:-120px;
  width:320px;
  height:320px;
  border-radius:50%;
  background:rgba(255,255,255,0.04);
}
.cta-section::after{
  content:'';
  position:absolute;
  left:-80px;
  bottom:-160px;
  width:280px;
  height:280px;
  border-radius:50%;
  background:rgba(74,122,155,0.18);
}
.cta-inner{
  position:relative;
  z-index:2;
  text-align:center;
  max-width:680px;
  margin:0 auto;
}
.cta-inner h2{
  font-size:32px;
  font-weight:700;
  color:#fff;
  line-height:1.35;
  letter-spacing:.01em;
  margin-bottom:16px;
}
.cta-inner p{
  font-size:16px;
  color:#B8C6CE;
  margin-bottom:36px;
  line-height:1.75;
}
.cta-buttons{
  display:flex;
  gap:16px;
  justify-content:center;
  flex-wrap:wrap;
}

/* Footer */
.site-footer{
  background:var(--primary-deeper);
  color:#B8C6CE;
  padding-top:64px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1.2fr;
  gap:48px;
  padding-bottom:48px;
}
.footer-brand-name{
  font-size:22px;
  font-weight:800;
  color:#fff;
  letter-spacing:.02em;
  margin-bottom:14px;
}
.footer-desc{
  font-size:14px;
  line-height:1.85;
  color:#9AABB3;
  max-width:340px;
}
.footer-title{
  font-size:15px;
  font-weight:700;
  color:#fff;
  margin-bottom:18px;
  letter-spacing:.04em;
}
.footer-links{
  display:grid;
  gap:12px;
}
.footer-links a{
  font-size:14px;
  color:#B8C6CE;
  transition:color .2s ease,padding-left .2s ease;
}
.footer-links a:hover{
  color:#fff;
  padding-left:4px;
}
.footer-contact{
  display:grid;
  gap:12px;
  font-size:14px;
  line-height:1.7;
}
.footer-contact i{
  color:var(--accent);
  margin-right:8px;
  width:16px;
  text-align:center;
}
.footer-bottom{
  border-top:1px solid #395668;
  padding:22px 0 24px;
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:16px;
  font-size:13px;
  color:#8DA2AC;
  flex-wrap:wrap;
}

/* Responsive */
@media (max-width:1023px){
  .nav-left,.nav-right{display:none;}
  .nav-toggle{display:inline-flex;}
  .brand-logo{
    left:auto;
    right:56px;
    transform:none;
    top:50%;
  }
  .mobile-nav{position:absolute;}
  .intro-grid{grid-template-columns:1fr;gap:48px;}
  .intro-visual img{width:100%;}
  .intro-stat-panel{position:static;margin-top:20px;justify-content:center;}
  .cards-grid{grid-template-columns:repeat(2,1fr);}
  .scenario-grid{grid-template-columns:repeat(2,1fr);}
  .process-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:40px;}
}
@media (max-width:767px){
  .section{padding:56px 0;}
  .page-hero{padding:48px 0 44px;}
  .page-hero h1{font-size:30px;}
  .page-hero .hero-sub{font-size:16px;}
  .hero-actions{flex-direction:column;width:100%;}
  .hero-actions .btn{width:100%;}
  .section-heading h2{font-size:24px;}
  .cards-grid{grid-template-columns:1fr;}
  .scenario-grid{grid-template-columns:1fr;}
  .process-grid{grid-template-columns:1fr;}
  .cta-inner h2{font-size:26px;}
  .cta-buttons{flex-direction:column;width:100%;}
  .cta-buttons .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:36px;}
  .footer-bottom{flex-direction:column;text-align:center;}
  .intro-stat-panel{flex-wrap:wrap;gap:20px;}
  .stat-item{text-align:center;}
}
@media (max-width:520px){
  .page-hero h1{font-size:26px;}
  .section-heading h2{font-size:22px;}
  .card-body h3{font-size:18px;}
  .scenario-card{padding:28px 22px;}
  .process-step{padding:26px 20px;}
  .cta-inner h2{font-size:24px;}
  .brand-mark{font-size:21px;}
  .brand-sub{font-size:10px;}
  .container{padding:0 16px;}
}

/* roulang page: article */
:root {
            --primary: #4A7A9B;
            --primary-dark: #2D5269;
            --accent: #A47C48;
            --bg: #F5F6F7;
            --white: #FFFFFF;
            --text: #3D4A54;
            --text-light: #7A8690;
            --text-muted: #9AA5AD;
            --border: #E6EAED;
            --input-border: #D8E0E5;
            --success: #5E8C6A;
            --danger: #D45B50;
            --shadow-card: 0 2px 8px rgba(31,50,65,0.05), 0 10px 24px rgba(31,50,65,0.06);
            --shadow-hover: 0 6px 16px rgba(31,50,65,0.08), 0 20px 40px rgba(31,50,65,0.10);
            --radius-lg: 8px;
            --radius-md: 6px;
            --radius-pill: 999px;
            --font-sans: "Noto Sans SC", "Source Han Sans SC", "Microsoft YaHei", "PingFang SC", "Helvetica Neue", sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
            font-feature-settings: "tnum";
        }

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

        a {
            color: var(--primary);
            text-decoration: none;
            transition: color 0.2s ease;
        }

        a:hover {
            color: #3A6685;
            text-decoration: underline;
        }

        ul,
        ol {
            list-style-position: inside;
        }

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

        input,
        textarea {
            font-family: inherit;
        }

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

        .container-narrow {
            max-width: 760px;
            margin: 0 auto;
            padding: 0 24px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 28px;
            font-size: 15px;
            font-weight: 600;
            border-radius: var(--radius-md);
            text-decoration: none;
            border: 1px solid transparent;
            transition: all 0.3s ease;
            line-height: 1.4;
            cursor: pointer;
        }

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

        .btn-primary:hover {
            background: #3A6685;
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(74, 122, 155, 0.25);
            text-decoration: none;
            color: #FFFFFF;
        }

        .btn-light {
            background: var(--white);
            color: var(--primary-dark);
        }

        .btn-light:hover {
            background: #E8F0F5;
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(45, 82, 105, 0.15);
            text-decoration: none;
            color: var(--primary-dark);
        }

        .btn-outline-light {
            background: transparent;
            color: #FFFFFF;
            border-color: rgba(255, 255, 255, 0.6);
        }

        .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.10);
            border-color: #FFFFFF;
            color: #FFFFFF;
            transform: translateY(-2px);
            text-decoration: none;
        }

        .btn:focus-visible,
        .nav-link:focus-visible,
        .nav-toggle:focus-visible,
        .footer-links a:focus-visible,
        .back-link:focus-visible {
            outline: 3px solid rgba(74, 122, 155, 0.35);
            outline-offset: 2px;
            border-radius: 2px;
        }

        /* ===== Header / Nav ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.97);
            border-bottom: 1px solid var(--border);
            box-shadow: 0 1px 4px rgba(31, 50, 65, 0.03);
        }

        .header-inner {
            max-width: 1200px;
            height: 72px;
            margin: 0 auto;
            padding: 0 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            position: relative;
        }

        .nav-left,
        .nav-right {
            display: flex;
            align-items: center;
            gap: 36px;
            flex: 1;
        }

        .nav-right {
            justify-content: flex-end;
        }

        .brand-logo {
            position: absolute;
            left: 50%;
            transform: translateX(-50%);
            display: flex;
            flex-direction: column;
            align-items: center;
            line-height: 1.15;
            text-decoration: none;
            padding: 4px 10px;
        }

        .brand-logo:hover {
            text-decoration: none;
        }

        .brand-mark {
            font-size: 26px;
            font-weight: 800;
            letter-spacing: 0.04em;
            color: var(--primary-dark);
        }

        .brand-sub {
            font-size: 12px;
            letter-spacing: 0.16em;
            color: var(--text-light);
            font-weight: 400;
            margin-top: 2px;
        }

        .nav-link {
            font-size: 15px;
            font-weight: 500;
            color: var(--text);
            text-decoration: none;
            padding: 10px 2px;
            position: relative;
            transition: color 0.2s ease;
            white-space: nowrap;
        }

        .nav-link:hover {
            color: var(--primary);
            text-decoration: none;
        }

        .nav-link.active {
            color: var(--primary);
            font-weight: 600;
        }

        .nav-link.active::after {
            content: '';
            position: absolute;
            left: 0;
            right: 0;
            bottom: 0;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }

        .nav-toggle {
            display: none;
            width: 42px;
            height: 42px;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            color: var(--primary-dark);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            background: var(--white);
            transition: all 0.2s ease;
        }

        .nav-toggle:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: #F7FAFC;
        }

        /* ===== Breadcrumb ===== */
        .breadcrumb-area {
            background: var(--bg);
            padding: 28px 0 0;
            border-bottom: 1px solid var(--border);
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 14px;
            color: var(--text-light);
            padding: 0 0 20px;
        }

        .breadcrumb a {
            color: var(--primary);
            text-decoration: none;
            transition: color 0.2s;
        }

        .breadcrumb a:hover {
            color: #3A6685;
            text-decoration: underline;
        }

        .breadcrumb-sep {
            color: var(--text-muted);
            font-size: 13px;
        }

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

        /* ===== Article Section ===== */
        .article-section {
            padding: 40px 0 64px;
            background: var(--bg);
        }

        .article-head {
            background: var(--white);
            border-radius: var(--radius-lg);
            padding: 44px 48px 28px;
            box-shadow: var(--shadow-card);
            margin-bottom: 24px;
        }

        .article-category-pill {
            display: inline-block;
            background: rgba(74, 122, 155, 0.10);
            color: var(--primary-dark);
            font-size: 13px;
            font-weight: 500;
            padding: 5px 14px;
            border-radius: var(--radius-pill);
            margin-bottom: 18px;
        }

        .article-title {
            font-size: 34px;
            font-weight: 700;
            line-height: 1.3;
            color: var(--text);
            margin-bottom: 22px;
            letter-spacing: 0.01em;
        }

        .article-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 22px;
            color: var(--text-light);
            font-size: 14px;
            border-top: 1px solid var(--border);
            padding-top: 18px;
        }

        .meta-item {
            display: inline-flex;
            align-items: center;
            gap: 7px;
        }

        .meta-item i {
            color: var(--primary);
            font-size: 13px;
        }

        .article-content {
            background: var(--white);
            border-radius: var(--radius-lg);
            padding: 44px 48px;
            box-shadow: var(--shadow-card);
        }

        .article-content p {
            font-size: 17px;
            line-height: 1.8;
            color: var(--text);
            margin-bottom: 1.5em;
        }

        .article-content h2 {
            font-size: 26px;
            font-weight: 700;
            color: var(--text);
            margin: 1.3em 0 0.6em;
            line-height: 1.35;
        }

        .article-content h3 {
            font-size: 20px;
            font-weight: 600;
            color: var(--text);
            margin: 1.1em 0 0.5em;
            line-height: 1.4;
        }

        .article-content h4 {
            font-size: 17px;
            font-weight: 600;
            color: var(--text);
            margin: 1em 0 0.4em;
        }

        .article-content img {
            max-width: 100%;
            border-radius: var(--radius-lg);
            margin: 24px 0;
            box-shadow: var(--shadow-card);
            height: auto;
        }

        .article-content blockquote {
            border-left: 3px solid var(--primary);
            background: #F0F4F7;
            padding: 18px 22px;
            margin: 28px 0;
            color: var(--text-light);
            border-radius: 0 var(--radius-md) var(--radius-md) 0;
            font-size: 16px;
        }

        .article-content blockquote p {
            margin-bottom: 0;
            color: var(--text-light);
            font-size: 16px;
        }

        .article-content ul,
        .article-content ol {
            margin: 0 0 1.5em 1.4em;
            padding-left: 0.6em;
            font-size: 17px;
            line-height: 1.8;
        }

        .article-content li {
            margin-bottom: 0.4em;
        }

        .article-content a {
            color: var(--primary);
            text-decoration: underline;
            text-underline-offset: 3px;
        }

        .article-content a:hover {
            color: #3A6685;
        }

        .article-content code {
            background: #F0F2F4;
            padding: 2px 8px;
            border-radius: 4px;
            font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
            font-size: 0.9em;
            color: #B5495B;
        }

        /* ===== Article Tags ===== */
        .article-tags {
            background: var(--white);
            border-radius: var(--radius-lg);
            padding: 22px 48px;
            box-shadow: var(--shadow-card);
            margin-top: 24px;
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            align-items: center;
        }

        .tag-label {
            font-size: 14px;
            color: var(--text-light);
            font-weight: 500;
            margin-right: 4px;
        }

        .tag-pill {
            background: rgba(74, 122, 155, 0.10);
            color: var(--primary-dark);
            font-size: 13px;
            padding: 5px 14px;
            border-radius: var(--radius-pill);
            display: inline-block;
            font-weight: 500;
        }

        /* ===== Related Section ===== */
        .related-section {
            padding: 72px 0 80px;
            background: var(--bg);
        }

        .section-head {
            display: flex;
            align-items: center;
            gap: 16px;
            margin-bottom: 40px;
        }

        .section-title {
            font-size: 28px;
            font-weight: 700;
            color: var(--text);
            margin: 0;
            line-height: 1.3;
        }

        .section-line {
            width: 48px;
            height: 4px;
            background: var(--accent);
            border-radius: 4px;
            flex-shrink: 0;
        }

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

        .content-card {
            background: var(--white);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            text-decoration: none;
            display: flex;
            flex-direction: column;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
            border: 1px solid transparent;
        }

        .content-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            text-decoration: none;
            border-color: rgba(74, 122, 155, 0.15);
        }

        .card-thumb {
            aspect-ratio: 16 / 9;
            overflow: hidden;
            background: #EDF1F3;
        }

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

        .content-card:hover .card-thumb img {
            transform: scale(1.04);
        }

        .card-body {
            padding: 20px 24px 24px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }

        .card-top {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 12px;
            gap: 8px;
        }

        .card-date {
            font-size: 13px;
            color: var(--text-light);
            white-space: nowrap;
        }

        .card-tag {
            font-size: 12px;
            color: var(--primary-dark);
            background: rgba(74, 122, 155, 0.10);
            padding: 3px 12px;
            border-radius: var(--radius-pill);
            font-weight: 500;
            white-space: nowrap;
        }

        .card-body h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--text);
            line-height: 1.45;
            margin-bottom: 10px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            transition: color 0.2s;
        }

        .content-card:hover .card-body h3 {
            color: var(--primary);
        }

        .card-body p {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin: 0;
            flex: 1;
        }

        .back-entry {
            text-align: center;
            margin-top: 48px;
        }

        .back-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: var(--primary);
            font-size: 15px;
            font-weight: 500;
            text-decoration: none;
            padding: 11px 28px;
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            background: var(--white);
            transition: all 0.3s ease;
            box-shadow: 0 1px 4px rgba(31, 50, 65, 0.03);
        }

        .back-link:hover {
            color: var(--primary-dark);
            border-color: var(--primary);
            transform: translateX(-4px);
            text-decoration: none;
        }

        /* ===== Not Found ===== */
        .not-found-section {
            padding: 100px 0;
            background: var(--bg);
            min-height: 420px;
            display: flex;
            align-items: center;
        }

        .not-found-card {
            max-width: 560px;
            margin: 0 auto;
            text-align: center;
            background: var(--white);
            border-radius: var(--radius-lg);
            padding: 64px 48px;
            box-shadow: var(--shadow-card);
        }

        .not-found-icon {
            width: 72px;
            height: 72px;
            margin: 0 auto 24px;
            background: rgba(74, 122, 155, 0.10);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 28px;
            color: var(--primary);
        }

        .not-found-card h1 {
            font-size: 30px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 16px;
        }

        .not-found-card p {
            color: var(--text-light);
            font-size: 16px;
            margin-bottom: 32px;
            line-height: 1.7;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: var(--primary-dark);
            padding: 72px 0;
            text-align: center;
        }

        .cta-inner {
            max-width: 680px;
            margin: 0 auto;
            padding: 0 24px;
        }

        .cta-inner h2 {
            color: #FFFFFF;
            font-size: 28px;
            font-weight: 700;
            margin-bottom: 12px;
            line-height: 1.35;
        }

        .cta-inner p {
            color: rgba(255, 255, 255, 0.8);
            font-size: 16px;
            line-height: 1.7;
            margin-bottom: 32px;
        }

        .cta-buttons {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: #263E4E;
            color: #B8C6CE;
            padding: 64px 0 0;
            font-size: 14px;
        }

        .site-footer .container {
            max-width: 1200px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1.2fr;
            gap: 48px;
            padding-bottom: 48px;
        }

        .footer-brand-name {
            font-size: 20px;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 12px;
            letter-spacing: 0.02em;
        }

        .footer-desc {
            font-size: 14px;
            line-height: 1.75;
            color: #B8C6CE;
            margin: 0;
        }

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

        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }

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

        .footer-links a {
            color: #B8C6CE;
            text-decoration: none;
            font-size: 14px;
            transition: color 0.2s ease;
        }

        .footer-links a:hover {
            color: #FFFFFF;
            text-decoration: none;
        }

        .footer-contact {
            font-size: 14px;
            line-height: 2.2;
        }

        .footer-contact div {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .footer-contact i {
            color: var(--accent);
            font-size: 13px;
            width: 16px;
            text-align: center;
        }

        .footer-bottom {
            border-top: 1px solid #395668;
            padding: 20px 0;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 13px;
            color: #8EA2AE;
        }

        /* ===== Responsive ===== */
        @media (max-width: 1023px) {
            .header-inner {
                height: 64px;
                flex-wrap: wrap;
                padding: 0 20px;
            }

            .site-header.nav-open .header-inner {
                height: auto;
                padding-bottom: 14px;
                box-shadow: 0 16px 32px rgba(31, 50, 65, 0.08);
            }

            .brand-logo {
                position: static;
                transform: none;
                order: 1;
                margin-right: auto;
                padding: 0;
            }

            .brand-mark {
                font-size: 23px;
            }

            .brand-sub {
                font-size: 11px;
            }

            .nav-toggle {
                display: inline-flex;
                order: 2;
            }

            .nav-left {
                order: 3;
                width: 100%;
            }

            .nav-right {
                order: 4;
                width: 100%;
            }

            .nav-left,
            .nav-right {
                display: none;
                flex-direction: column;
                align-items: stretch;
                gap: 0;
                flex: none;
            }

            .site-header.nav-open .nav-left,
            .site-header.nav-open .nav-right {
                display: flex;
                padding-top: 14px;
            }

            .nav-link {
                padding: 14px 4px;
                font-size: 17px;
                border-bottom: 1px solid var(--border);
                white-space: normal;
            }

            .nav-link:last-child {
                border-bottom: none;
            }

            .nav-link.active::after {
                display: none;
            }

            .nav-link.active {
                color: var(--primary);
                font-weight: 600;
                background: rgba(74, 122, 155, 0.05);
                padding-left: 12px;
                border-radius: var(--radius-md);
            }

            .related-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 40px 32px;
            }

            .article-head {
                padding: 36px 32px 24px;
            }

            .article-content {
                padding: 32px;
            }

            .article-tags {
                padding: 18px 32px;
            }

            .article-title {
                font-size: 30px;
            }
        }

        @media (max-width: 767px) {
            .container {
                padding: 0 16px;
            }

            .container-narrow {
                padding: 0 16px;
            }

            .header-inner {
                padding: 0 16px;
            }

            .brand-logo {
                margin-right: 8px;
            }

            .breadcrumb-area {
                padding-top: 20px;
            }

            .breadcrumb {
                padding-bottom: 16px;
                gap: 6px;
                font-size: 13px;
            }

            .breadcrumb-current {
                max-width: 180px;
            }

            .article-section {
                padding: 24px 0 48px;
            }

            .article-head {
                padding: 28px 20px 20px;
                margin-bottom: 16px;
            }

            .article-title {
                font-size: 25px;
                line-height: 1.35;
                margin-bottom: 16px;
            }

            .article-meta {
                gap: 12px;
                font-size: 13px;
                flex-direction: column;
                align-items: flex-start;
            }

            .article-content {
                padding: 24px 20px;
            }

            .article-content p {
                font-size: 16px;
                line-height: 1.75;
            }

            .article-content h2 {
                font-size: 22px;
            }

            .article-content h3 {
                font-size: 18px;
            }

            .article-content blockquote {
                padding: 14px 16px;
                font-size: 15px;
            }

            .article-tags {
                padding: 16px 20px;
                gap: 8px;
                margin-top: 16px;
            }

            .related-section {
                padding: 48px 0 56px;
            }

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

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

            .back-entry {
                margin-top: 36px;
            }

            .cta-section {
                padding: 56px 0;
            }

            .cta-inner h2 {
                font-size: 23px;
            }

            .cta-buttons {
                flex-direction: column;
                align-items: center;
                gap: 12px;
            }

            .cta-buttons .btn {
                width: 100%;
                max-width: 280px;
            }

            .not-found-section {
                padding: 72px 0;
                min-height: 360px;
            }

            .not-found-card {
                padding: 48px 24px;
            }

            .not-found-card h1 {
                font-size: 26px;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
                padding-bottom: 36px;
            }

            .site-footer {
                padding-top: 48px;
            }

            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 6px;
            }
        }

        @media (max-width: 400px) {
            .brand-mark {
                font-size: 20px;
            }

            .brand-sub {
                font-size: 10px;
            }

            .nav-toggle {
                width: 38px;
                height: 38px;
            }

            .article-title {
                font-size: 22px;
            }
        }

/* roulang page: category2 */
:root {
  --primary: #4A7A9B;
  --primary-dark: #2D5269;
  --primary-darker: #263E4E;
  --accent: #A47C48;
  --page-bg: #F5F6F7;
  --card-bg: #FFFFFF;
  --text-main: #3D4A54;
  --text-weak: #7A8690;
  --border-light: #E6EAED;
  --shadow-card: 0 2px 8px rgba(31,50,65,0.05), 0 10px 24px rgba(31,50,65,0.06);
  --shadow-hover: 0 6px 16px rgba(31,50,65,0.08), 0 20px 40px rgba(31,50,65,0.10);
  --radius-card: 8px;
  --radius-btn: 6px;
  --radius-pill: 999px;
  --space-section: 80px;
  --space-section-mobile: 48px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 16px;
  line-height: 1.75;
  color: var(--text-main);
  background: var(--page-bg);
  -webkit-font-smoothing: antialiased;
}

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

a {
  text-decoration: none;
  color: var(--primary);
  transition: color 0.2s ease;
}

a:hover {
  color: #3A6685;
  text-decoration: underline;
}

button {
  font-family: inherit;
  cursor: pointer;
}

input, textarea {
  font-family: inherit;
}

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

/* ===== Header / Navigation ===== */
.site-header {
  background: #FFFFFF;
  border-bottom: 1px solid var(--border-light);
  height: 72px;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 1px 4px rgba(31,50,65,0.04);
}

.header-inner {
  max-width: 1200px;
  margin: 0 auto;
  height: 72px;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: relative;
}

.nav-left {
  display: flex;
  align-items: center;
  gap: 8px;
  flex: 1;
}

.nav-right {
  display: flex;
  align-items: center;
  gap: 8px;
  flex: 1;
  justify-content: flex-end;
}

.nav-link {
  font-size: 15px;
  font-weight: 500;
  color: var(--text-main);
  padding: 8px 16px;
  border-radius: 4px;
  position: relative;
  text-decoration: none;
  transition: color 0.2s ease;
}

.nav-link:hover {
  color: var(--primary);
  text-decoration: none;
}

.nav-link.active {
  color: var(--primary);
  font-weight: 600;
}

.nav-link.active::after {
  content: "";
  position: absolute;
  bottom: -2px;
  left: 16px;
  right: 16px;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
}

.brand-logo {
  display: flex;
  flex-direction: column;
  align-items: center;
  line-height: 1.1;
  text-decoration: none;
  padding: 0 20px;
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  top: 50%;
  margin-top: -1px;
  z-index: 2;
}

.brand-logo:hover {
  text-decoration: none;
}

.brand-mark {
  font-size: 24px;
  font-weight: 800;
  color: var(--primary-darker);
  letter-spacing: 0.02em;
}

.brand-sub {
  font-size: 11px;
  color: var(--text-weak);
  letter-spacing: 0.08em;
  font-weight: 400;
  margin-top: 2px;
}

.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--border-light);
  border-radius: 6px;
  width: 42px;
  height: 42px;
  font-size: 18px;
  color: var(--primary-dark);
  align-items: center;
  justify-content: center;
  transition: background 0.2s ease;
}

.nav-toggle:hover {
  background: var(--page-bg);
}

/* Mobile menu panel */
.mobile-menu {
  display: none;
  background: #FFFFFF;
  border-top: 1px solid var(--border-light);
  padding: 16px 0;
  box-shadow: 0 8px 20px rgba(31,50,65,0.08);
}

.mobile-menu.open {
  display: block;
}

.mobile-menu .mobile-link {
  display: block;
  font-size: 17px;
  padding: 14px 24px;
  color: var(--text-main);
  text-decoration: none;
  border-bottom: 1px solid rgba(230,234,237,0.6);
  transition: background 0.2s ease;
}

.mobile-menu .mobile-link:last-child {
  border-bottom: none;
}

.mobile-menu .mobile-link:hover {
  background: var(--page-bg);
  color: var(--primary);
  text-decoration: none;
}

.mobile-menu .mobile-link.active {
  color: var(--primary);
  font-weight: 600;
  background: rgba(74,122,155,0.06);
}

@media (max-width: 1023px) {
  .nav-left, .nav-right {
    display: none;
  }
  .nav-toggle {
    display: flex;
    margin-left: auto;
  }
  .brand-logo {
    position: static;
    transform: none;
    margin-right: auto;
    padding: 0;
  }
  .header-inner {
    gap: 12px;
  }
}

/* ===== Page Banner ===== */
.page-banner {
  position: relative;
  background: url('/assets/images/backpic/back-2.webp') center center / cover no-repeat;
  min-height: 300px;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 60px 24px;
}

.page-banner::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(255,255,255,0.92) 0%, rgba(245,246,247,0.88) 100%);
}

.page-banner-content {
  position: relative;
  z-index: 1;
  max-width: 720px;
}

.page-banner .banner-tag {
  display: inline-block;
  font-size: 13px;
  color: var(--accent);
  background: rgba(164,124,72,0.10);
  padding: 4px 14px;
  border-radius: var(--radius-pill);
  margin-bottom: 20px;
  font-weight: 500;
}

.page-banner h1 {
  font-size: 42px;
  font-weight: 700;
  color: var(--primary-darker);
  line-height: 1.3;
  letter-spacing: 0.01em;
  margin-bottom: 16px;
}

.page-banner .banner-sub {
  font-size: 17px;
  color: #5A6B76;
  line-height: 1.7;
  max-width: 560px;
  margin: 0 auto;
}

.banner-divider {
  width: 48px;
  height: 3px;
  background: var(--accent);
  border-radius: 3px;
  margin: 24px auto 0;
}

@media (max-width: 767px) {
  .page-banner {
    min-height: 260px;
    padding: 40px 16px;
  }
  .page-banner h1 {
    font-size: 30px;
  }
  .page-banner .banner-sub {
    font-size: 15px;
  }
}

/* ===== Intro Section ===== */
.intro-section {
  padding: 80px 0;
  background: #FFFFFF;
}

.intro-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.intro-text .section-label {
  font-size: 13px;
  font-weight: 600;
  color: var(--accent);
  letter-spacing: 0.05em;
  margin-bottom: 12px;
  display: block;
}

.intro-text h2 {
  font-size: 32px;
  font-weight: 700;
  color: var(--primary-darker);
  line-height: 1.3;
  margin-bottom: 20px;
  position: relative;
  padding-bottom: 16px;
}

.intro-text h2::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 44px;
  height: 4px;
  background: var(--accent);
  border-radius: 4px;
}

.intro-text p {
  font-size: 16px;
  line-height: 1.8;
  color: var(--text-main);
  margin-bottom: 16px;
}

.intro-text p:last-of-type {
  margin-bottom: 0;
}

.intro-image {
  position: relative;
  border-radius: var(--radius-card);
  overflow: hidden;
  box-shadow: var(--shadow-card);
}

.intro-image img {
  width: 100%;
  height: 360px;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.intro-image:hover img {
  transform: scale(1.03);
}

.intro-data-panel {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 32px;
  padding: 20px 16px;
  background: rgba(74,122,155,0.05);
  border-radius: var(--radius-card);
  border: 1px solid rgba(74,122,155,0.10);
}

.data-item {
  text-align: center;
}

.data-item .data-num {
  font-size: 28px;
  font-weight: 700;
  color: var(--primary-dark);
  line-height: 1.2;
  font-feature-settings: "tnum";
}

.data-item .data-label {
  font-size: 13px;
  color: var(--text-weak);
  margin-top: 4px;
}

@media (max-width: 1023px) {
  .intro-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .intro-image img {
    height: 280px;
  }
}

@media (max-width: 767px) {
  .intro-section {
    padding: 48px 0;
  }
  .intro-text h2 {
    font-size: 26px;
  }
  .intro-data-panel {
    grid-template-columns: 1fr;
    gap: 12px;
  }
}

/* ===== Timeline Section ===== */
.timeline-section {
  padding: 80px 0;
  background: var(--page-bg);
}

.section-header {
  text-align: center;
  margin-bottom: 48px;
}

.section-header .section-tag {
  display: inline-block;
  font-size: 13px;
  color: var(--accent);
  background: rgba(164,124,72,0.10);
  padding: 4px 14px;
  border-radius: var(--radius-pill);
  margin-bottom: 16px;
  font-weight: 500;
}

.section-header h2 {
  font-size: 32px;
  font-weight: 700;
  color: var(--primary-darker);
  line-height: 1.3;
  margin-bottom: 12px;
}

.section-header .section-sub {
  font-size: 16px;
  color: var(--text-weak);
  max-width: 560px;
  margin: 0 auto;
  line-height: 1.7;
}

.timeline-wrapper {
  max-width: 780px;
  margin: 0 auto;
  position: relative;
  padding: 0 20px;
}

.timeline-wrapper::before {
  content: "";
  position: absolute;
  left: 50%;
  top: 0;
  bottom: 0;
  width: 2px;
  background: rgba(74,122,155,0.20);
  transform: translateX(-50%);
}

.timeline-item {
  display: flex;
  position: relative;
  margin-bottom: 40px;
}

.timeline-item:last-child {
  margin-bottom: 0;
}

.timeline-dot {
  width: 14px;
  height: 14px;
  background: var(--primary);
  border: 2px solid #FFFFFF;
  border-radius: 50%;
  position: absolute;
  left: 50%;
  top: 24px;
  transform: translateX(-50%);
  box-shadow: 0 0 0 3px rgba(74,122,155,0.15);
  z-index: 2;
}

.timeline-box {
  width: calc(50% - 40px);
  background: var(--card-bg);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
  padding: 24px;
  transition: box-shadow 0.3s ease, transform 0.3s ease;
}

.timeline-box:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-2px);
}

.timeline-item:nth-child(odd) .timeline-box {
  margin-left: auto;
}

.timeline-item:nth-child(even) .timeline-box {
  margin-right: auto;
}

.timeline-date {
  font-size: 13px;
  color: var(--accent);
  font-weight: 600;
  margin-bottom: 8px;
  display: inline-block;
  background: rgba(164,124,72,0.10);
  padding: 2px 10px;
  border-radius: var(--radius-pill);
}

.timeline-box h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--primary-darker);
  margin-bottom: 8px;
}

.timeline-box p {
  font-size: 14px;
  color: var(--text-weak);
  line-height: 1.7;
}

@media (max-width: 767px) {
  .timeline-section {
    padding: 48px 0;
  }
  .timeline-wrapper::before {
    left: 12px;
  }
  .timeline-dot {
    left: 12px;
  }
  .timeline-box {
    width: calc(100% - 36px);
    margin-left: 36px !important;
    margin-right: 0 !important;
  }
  .section-header h2 {
    font-size: 26px;
  }
}

/* ===== Cards Section ===== */
.cards-section {
  padding: 80px 0;
  background: #FFFFFF;
}

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

.info-card {
  background: var(--card-bg);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-card);
  overflow: hidden;
  box-shadow: 0 2px 6px rgba(31,50,65,0.03);
  transition: box-shadow 0.3s ease, transform 0.3s ease;
  display: flex;
  flex-direction: column;
}

.info-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-3px);
}

.card-image {
  width: 100%;
  height: 180px;
  overflow: hidden;
  position: relative;
  background: #EDF1F3;
}

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

.info-card:hover .card-image img {
  transform: scale(1.03);
}

.card-body {
  padding: 24px;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.card-tag {
  display: inline-block;
  font-size: 12px;
  color: var(--primary-dark);
  background: rgba(74,122,155,0.10);
  padding: 3px 10px;
  border-radius: var(--radius-pill);
  margin-bottom: 12px;
  font-weight: 500;
  align-self: flex-start;
}

.card-body h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--primary-darker);
  line-height: 1.5;
  margin-bottom: 8px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.card-body p {
  font-size: 14px;
  color: var(--text-weak);
  line-height: 1.7;
  margin-bottom: 16px;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.card-link {
  font-size: 14px;
  font-weight: 500;
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: auto;
  text-decoration: none;
  transition: gap 0.2s ease;
}

.card-link:hover {
  color: #3A6685;
  text-decoration: none;
  gap: 10px;
}

.card-link i {
  font-size: 12px;
}

@media (max-width: 1023px) {
  .cards-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 767px) {
  .cards-section {
    padding: 48px 0;
  }
  .cards-grid {
    grid-template-columns: 1fr;
  }
}

/* ===== FAQ Section ===== */
.faq-section {
  padding: 80px 0;
  background: var(--page-bg);
}

.faq-wrapper {
  max-width: 780px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
}

.faq-item {
  background: #FFFFFF;
  border-radius: var(--radius-card);
  box-shadow: 0 2px 6px rgba(31,50,65,0.03);
  margin-bottom: 16px;
  overflow: hidden;
  border: 1px solid transparent;
  transition: border-color 0.25s ease, box-shadow 0.25s ease;
}

.faq-item:hover {
  border-color: rgba(74,122,155,0.15);
}

.faq-item.active {
  box-shadow: var(--shadow-card);
  border-color: rgba(74,122,155,0.12);
}

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  background: none;
  border: none;
  text-align: left;
  font-size: 16px;
  font-weight: 500;
  color: var(--primary-darker);
  cursor: pointer;
  transition: color 0.2s ease;
  min-height: 56px;
}

.faq-question:hover {
  color: var(--primary);
}

.faq-icon {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: rgba(74,122,155,0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 16px;
  color: var(--primary);
  transition: transform 0.3s ease, background 0.3s ease;
  margin-left: 16px;
}

.faq-item.active .faq-icon {
  transform: rotate(45deg);
  background: rgba(74,122,155,0.15);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease, padding 0.3s ease;
  padding: 0 24px;
}

.faq-answer p {
  font-size: 15px;
  color: var(--text-weak);
  line-height: 1.8;
  padding-bottom: 20px;
  border-top: 1px solid rgba(230,234,237,0.6);
  padding-top: 14px;
}

.faq-item.active .faq-answer {
  max-height: 300px;
}

@media (max-width: 767px) {
  .faq-section {
    padding: 48px 0;
  }
  .faq-question {
    font-size: 15px;
    padding: 18px 20px;
  }
}

/* ===== CTA Section ===== */
.cta-section {
  padding: 80px 0;
  background: var(--primary-darker);
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--accent);
  opacity: 0.6;
}

.cta-inner {
  text-align: center;
  max-width: 640px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.cta-inner h2 {
  font-size: 32px;
  color: #FFFFFF;
  font-weight: 700;
  line-height: 1.4;
  margin-bottom: 16px;
}

.cta-inner p {
  font-size: 16px;
  color: #B8C6CE;
  line-height: 1.8;
  margin-bottom: 36px;
}

.cta-buttons {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--primary);
  color: #FFFFFF;
  border: none;
  border-radius: var(--radius-btn);
  padding: 12px 32px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  transition: background 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
}

.btn-primary:hover {
  background: #3A6685;
  color: #FFFFFF;
  text-decoration: none;
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(0,0,0,0.15);
}

.btn-outline-light {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: transparent;
  color: #B8C6CE;
  border: 1px solid rgba(184,198,206,0.5);
  border-radius: var(--radius-btn);
  padding: 12px 32px;
  font-size: 15px;
  font-weight: 500;
  cursor: pointer;
  text-decoration: none;
  transition: border-color 0.2s ease, color 0.2s ease, background 0.2s ease;
}

.btn-outline-light:hover {
  border-color: #FFFFFF;
  color: #FFFFFF;
  background: rgba(255,255,255,0.05);
  text-decoration: none;
}

@media (max-width: 767px) {
  .cta-section {
    padding: 48px 0;
  }
  .cta-inner h2 {
    font-size: 26px;
  }
  .cta-buttons {
    flex-direction: column;
    align-items: center;
  }
}

/* ===== Footer ===== */
.site-footer {
  background: var(--primary-darker);
  padding: 64px 0 0;
  color: #B8C6CE;
}

.site-footer .container {
  max-width: 1200px;
}

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

.footer-brand-name {
  font-size: 20px;
  font-weight: 700;
  color: #FFFFFF;
  margin-bottom: 12px;
  letter-spacing: 0.01em;
}

.footer-desc {
  font-size: 14px;
  line-height: 1.8;
  color: #8FA7B3;
  max-width: 320px;
}

.footer-title {
  font-size: 15px;
  font-weight: 600;
  color: #FFFFFF;
  margin-bottom: 16px;
  position: relative;
  padding-bottom: 8px;
}

.footer-title::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 24px;
  height: 2px;
  background: var(--accent);
}

.footer-links {
  list-style: none;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-links a {
  color: #B8C6CE;
  font-size: 14px;
  text-decoration: none;
  transition: color 0.2s ease;
}

.footer-links a:hover {
  color: #FFFFFF;
}

.footer-contact {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-contact div {
  font-size: 14px;
  color: #B8C6CE;
  display: flex;
  align-items: center;
  gap: 10px;
}

.footer-contact i {
  width: 16px;
  color: var(--accent);
  font-size: 14px;
}

.footer-bottom {
  border-top: 1px solid #395668;
  padding: 20px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
}

.footer-bottom span {
  font-size: 13px;
  color: #8FA7B3;
}

@media (max-width: 767px) {
  .site-footer {
    padding: 48px 0 0;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .footer-bottom {
    flex-direction: column;
    text-align: center;
    gap: 4px;
  }
}

/* ===== Utility ===== */
.text-center {
  text-align: center;
}

.mt-16 {
  margin-top: 16px;
}

.mb-16 {
  margin-bottom: 16px;
}

@media (max-width: 767px) {
  :root {
    --space-section: 48px;
  }
  .intro-section,
  .timeline-section,
  .cards-section,
  .faq-section,
  .cta-section {
    padding-top: var(--space-section);
    padding-bottom: var(--space-section);
  }
}