/* roulang page: index */
:root {
    --primary: #0E4D44;
    --primary-dark: #0B3B34;
    --primary-light: #E6EEEC;
    --accent: #E8A33D;
    --accent-dark: #D8912E;
    --bg-light: #F5F7F6;
    --bg-alt: #EEF2F0;
    --dark-bg: #0B2B26;
    --text-main: #1F2933;
    --text-muted: #5B6B7A;
    --border: #E3E8E6;
    --white: #FFFFFF;
    --success: #2E9E6B;
    --warning: #D96C3F;
    --radius-card: 12px;
    --radius-btn: 8px;
    --shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
    --shadow-hover: 0 8px 24px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
    font-size: 16px;
    line-height: 1.8;
    color: var(--text-main);
    background: var(--white);
    -webkit-font-smoothing: antialiased;
}

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

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

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

a:hover {
    color: var(--accent);
}

ul {
    list-style: none;
}

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

/* ===== 按钮 ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 28px;
    border-radius: var(--radius-btn);
    font-size: 15px;
    font-weight: 600;
    line-height: 1.5;
    cursor: pointer;
    border: 2px solid transparent;
    transition: all 0.3s ease;
    text-align: center;
    white-space: nowrap;
}

.btn:focus-visible {
    outline: 2px solid rgba(232, 163, 61, 0.5);
    outline-offset: 2px;
}

.btn-accent {
    background: var(--accent);
    color: #3B2D14;
    border-color: var(--accent);
}

.btn-accent:hover {
    background: var(--accent-dark);
    border-color: var(--accent-dark);
    color: #3B2D14;
    box-shadow: 0 4px 14px rgba(232, 163, 61, 0.35);
    transform: translateY(-1px);
}

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

.btn-outline:hover {
    background: var(--primary);
    color: var(--white);
    border-color: var(--primary);
    transform: translateY(-1px);
    box-shadow: 0 4px 14px rgba(14, 77, 68, 0.2);
}

.btn-white-outline {
    background: transparent;
    color: var(--white);
    border-color: rgba(255, 255, 255, 0.7);
}

.btn-white-outline:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--white);
    color: var(--white);
}

.btn-sm {
    padding: 8px 18px;
    font-size: 13px;
}

.btn-lg {
    padding: 14px 40px;
    font-size: 16px;
}

.btn-block {
    display: flex;
    width: 100%;
}

/* ===== 导航 ===== */
.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: var(--white);
    border-bottom: 1px solid var(--border);
    box-shadow: 0 1px 6px rgba(0, 0, 0, 0.04);
    transition: box-shadow 0.3s ease;
}

.site-header.scrolled {
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
}

.nav-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
    gap: 24px;
}

.nav-brand {
    flex-shrink: 0;
    display: flex;
    align-items: center;
}

.nav-brand a {
    font-size: 20px;
    font-weight: 700;
    color: var(--primary);
    letter-spacing: 0.5px;
    line-height: 1.3;
    display: flex;
    align-items: center;
    gap: 8px;
}

.nav-brand i {
    color: var(--accent);
    font-size: 22px;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 8px;
    margin: 0;
    flex: 1;
    justify-content: center;
}

.nav-links > li {
    position: relative;
}

.nav-links > li > a {
    display: flex;
    align-items: center;
    padding: 8px 16px;
    font-size: 15px;
    font-weight: 500;
    color: var(--text-main);
    border-radius: var(--radius-btn);
    position: relative;
    transition: all 0.3s ease;
}

.nav-links > li > a::after {
    content: "";
    position: absolute;
    left: 16px;
    right: 16px;
    bottom: 0;
    height: 3px;
    border-radius: 3px;
    background: var(--accent);
    opacity: 0;
    transform: scaleX(0.4);
    transition: all 0.3s ease;
}

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

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

.nav-links > li > a.active::after {
    opacity: 1;
    transform: scaleX(1);
}

.nav-links .has-mega > a {
    gap: 6px;
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-shrink: 0;
}

.hamburger {
    display: none;
    width: 44px;
    height: 44px;
    background: var(--bg-light);
    border: 1px solid var(--border);
    border-radius: var(--radius-btn);
    cursor: pointer;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 5px;
}

.hamburger span {
    display: block;
    width: 20px;
    height: 2px;
    background: var(--primary);
    border-radius: 2px;
    transition: all 0.3s ease;
}

.hamburger.active span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.hamburger.active span:nth-child(2) {
    opacity: 0;
}

.hamburger.active span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* Mega Menu */
.mega-panel {
    display: none;
    position: absolute;
    top: calc(100% + 8px);
    left: 50%;
    transform: translateX(-50%);
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--radius-card);
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.1);
    padding: 28px;
    min-width: 480px;
    z-index: 200;
}

.has-mega:hover .mega-panel,
.has-mega:focus-within .mega-panel {
    display: block;
    animation: fadeInUp 0.3s ease;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateX(-50%) translateY(8px);
    }
    to {
        opacity: 1;
        transform: translateX(-50%) translateY(0);
    }
}

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

.mega-col h4 {
    font-size: 13px;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 12px;
    text-transform: uppercase;
    letter-spacing: 0.6px;
}

.mega-col a {
    display: block;
    padding: 5px 0;
    font-size: 14px;
    color: var(--text-main);
    line-height: 1.6;
}

.mega-col a:hover {
    color: var(--accent);
    padding-left: 4px;
}

/* ===== Hero ===== */
.hero-section {
    position: relative;
    background: var(--bg-light);
    background-image: linear-gradient(rgba(245, 247, 246, 0.92), rgba(245, 247, 246, 0.95)), url('/assets/images/backpic/back-1.png');
    background-size: cover;
    background-position: center;
    padding: 84px 0 72px;
    overflow: hidden;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 56px;
    align-items: center;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(46, 158, 107, 0.1);
    border: 1px solid rgba(46, 158, 107, 0.25);
    color: var(--success);
    font-size: 13px;
    font-weight: 600;
    padding: 6px 14px;
    border-radius: 20px;
    margin-bottom: 20px;
}

.hero-badge .dot {
    width: 8px;
    height: 8px;
    background: var(--success);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% {
        box-shadow: 0 0 0 0 rgba(46, 158, 107, 0.4);
    }
    50% {
        box-shadow: 0 0 0 6px rgba(46, 158, 107, 0);
    }
}

.hero-title {
    font-size: 38px;
    font-weight: 700;
    line-height: 1.35;
    color: var(--text-main);
    margin-bottom: 16px;
    letter-spacing: -0.5px;
}

.hero-title span {
    color: var(--primary);
}

.hero-subtitle {
    font-size: 16px;
    line-height: 1.8;
    color: var(--text-muted);
    max-width: 520px;
    margin-bottom: 32px;
}

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

.hero-trust {
    display: flex;
    gap: 28px;
    margin-top: 28px;
}

.hero-trust-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    color: var(--text-muted);
}

.hero-trust-item i {
    color: var(--success);
    font-size: 16px;
}

/* 登录卡片 */
.login-card-wrap {
    position: relative;
}

.login-card {
    background: var(--white);
    border-radius: var(--radius-card);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
    padding: 32px;
    border: 1px solid rgba(227, 232, 230, 0.6);
}

.login-card-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
}

.login-card-title {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-main);
}

.status-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 12px;
    font-weight: 600;
    color: var(--success);
    background: rgba(46, 158, 107, 0.1);
    padding: 4px 12px;
    border-radius: 20px;
}

.status-badge i {
    font-size: 8px;
    vertical-align: middle;
}

.login-availability {
    position: absolute;
    top: -14px;
    left: 24px;
    background: var(--primary);
    color: var(--white);
    font-size: 12px;
    font-weight: 600;
    padding: 6px 14px;
    border-radius: 20px;
    box-shadow: 0 4px 12px rgba(14, 77, 68, 0.25);
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.login-availability i {
    color: var(--accent);
}

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

.form-group label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-main);
    margin-bottom: 6px;
}

.form-control {
    width: 100%;
    height: 44px;
    padding: 0 14px;
    border: 1px solid #CBD5D2;
    border-radius: var(--radius-btn);
    font-size: 14px;
    color: var(--text-main);
    background: var(--white);
    transition: all 0.3s ease;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(14, 77, 68, 0.12);
}

.form-control::placeholder {
    color: #9AA6A0;
}

.form-row-inline {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 18px;
    font-size: 13px;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 6px;
    color: var(--text-muted);
    cursor: pointer;
}

.checkbox-label input {
    accent-color: var(--primary);
}

.forget-link {
    color: var(--text-muted);
}

.forget-link:hover {
    color: var(--accent);
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    margin-top: 20px;
}

.hero-stat {
    text-align: center;
    padding: 16px 8px;
    background: var(--bg-light);
    border-radius: var(--radius-card);
    border: 1px solid var(--border);
}

.hero-stat-num {
    font-size: 24px;
    font-weight: 700;
    color: var(--primary);
    line-height: 1.3;
}

.hero-stat-num.accent {
    color: var(--accent);
}

.hero-stat-label {
    font-size: 12px;
    color: var(--text-muted);
    margin-top: 4px;
}

/* ===== 板块通用 ===== */
.section-block {
    padding: 72px 0;
}

.section-bg-alt {
    background: var(--bg-light);
}

.section-bg-dark {
    background: var(--dark-bg);
    color: var(--white);
}

.section-header {
    text-align: center;
    max-width: 720px;
    margin: 0 auto 48px;
}

.section-header h2 {
    font-size: 30px;
    font-weight: 700;
    color: var(--text-main);
    margin-bottom: 12px;
    letter-spacing: -0.3px;
}

.section-bg-dark .section-header h2 {
    color: var(--white);
}

.section-header p {
    font-size: 15px;
    color: var(--text-muted);
    line-height: 1.8;
}

.section-bg-dark .section-header p {
    color: rgba(255, 255, 255, 0.7);
}

.section-header.left {
    text-align: left;
    margin-left: 0;
}

/* ===== 服务矩阵 ===== */
.service-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.service-card {
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--radius-card);
    padding: 32px 24px;
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
}

.service-card:hover {
    border-color: var(--accent);
    box-shadow: var(--shadow-hover);
    transform: translateY(-4px);
}

.service-icon {
    width: 52px;
    height: 52px;
    border-radius: 12px;
    background: var(--primary-light);
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    margin-bottom: 20px;
}

.service-card h3 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 10px;
    color: var(--text-main);
}

.service-card p {
    font-size: 14px;
    color: var(--text-muted);
    line-height: 1.7;
    margin-bottom: 16px;
}

.service-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 14px;
    font-weight: 600;
    color: var(--primary);
    transition: all 0.3s ease;
}

.service-link:hover {
    color: var(--accent);
    gap: 10px;
}

/* ===== 数据对比 ===== */
.compare-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: center;
}

.compare-content h2 {
    font-size: 30px;
    font-weight: 700;
    color: var(--white);
    line-height: 1.4;
    margin-bottom: 16px;
}

.compare-content p {
    font-size: 15px;
    color: rgba(255, 255, 255, 0.75);
    line-height: 1.8;
    margin-bottom: 24px;
}

.compare-list {
    margin-top: 16px;
}

.compare-list li {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.8);
    padding: 6px 0;
}

.compare-list li i {
    color: var(--accent);
}

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

.compare-card {
    background: #123B36;
    border-radius: var(--radius-card);
    padding: 28px;
    border: 1px solid rgba(255, 255, 255, 0.06);
}

.compare-card-title {
    font-size: 14px;
    font-weight: 600;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.compare-card-title i {
    font-size: 16px;
}

.compare-card.before .compare-card-title {
    color: rgba(255, 255, 255, 0.5);
}

.compare-card.after .compare-card-title i {
    color: var(--accent);
}

.compare-item {
    padding: 12px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

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

.compare-item-label {
    font-size: 12px;
    color: rgba(255, 255, 255, 0.55);
    margin-bottom: 4px;
}

.compare-item-value {
    font-size: 18px;
    font-weight: 600;
    color: rgba(255, 255, 255, 0.85);
}

.compare-card.after .compare-item-value {
    color: var(--accent);
    font-size: 20px;
}

.compare-note {
    margin-top: 16px;
    font-size: 12px;
    color: rgba(255, 255, 255, 0.4);
    text-align: right;
}

/* ===== 资讯列表 ===== */
.news-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    margin-bottom: 36px;
}

.news-header h2 {
    font-size: 30px;
    font-weight: 700;
    color: var(--text-main);
    margin-bottom: 8px;
}

.news-header p {
    color: var(--text-muted);
    font-size: 15px;
}

.news-more {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    font-weight: 600;
    color: var(--primary);
    background: var(--white);
    border: 1px solid var(--border);
    padding: 8px 16px;
    border-radius: var(--radius-btn);
    transition: all 0.3s ease;
}

.news-more:hover {
    border-color: var(--primary);
    color: var(--primary);
    box-shadow: var(--shadow);
}

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

.news-card {
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--radius-card);
    overflow: hidden;
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
}

.news-card:hover {
    box-shadow: var(--shadow-hover);
    border-color: rgba(232, 163, 61, 0.4);
    transform: translateY(-4px);
}

.news-thumb {
    width: 100%;
    height: 180px;
    background: var(--bg-alt);
    overflow: hidden;
    position: relative;
}

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

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

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

.news-body h3 {
    font-size: 17px;
    font-weight: 600;
    line-height: 1.5;
    margin-bottom: 10px;
}

.news-body h3 a {
    color: var(--text-main);
}

.news-body h3 a:hover {
    color: var(--primary);
}

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

.news-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 13px;
    color: var(--text-muted);
}

.news-meta .tag {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    background: var(--primary-light);
    color: var(--primary);
    font-weight: 600;
    padding: 4px 10px;
    border-radius: 20px;
    font-size: 12px;
}

.empty-state {
    text-align: center;
    padding: 56px 24px;
    background: var(--bg-light);
    border-radius: var(--radius-card);
    border: 1px dashed var(--border);
}

.empty-state i {
    font-size: 36px;
    color: #C0CCC6;
    margin-bottom: 12px;
}

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

/* ===== FAQ ===== */
.faq-wrap {
    max-width: 800px;
    margin: 0 auto;
}

.accordion-item {
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--radius-card);
    margin-bottom: 14px;
    transition: all 0.3s ease;
    overflow: hidden;
}

.accordion-item:hover {
    border-color: rgba(14, 77, 68, 0.3);
}

.accordion-item.active {
    border-left: 4px solid var(--accent);
    box-shadow: var(--shadow);
}

.accordion-title {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 18px 24px;
    cursor: pointer;
    font-size: 16px;
    font-weight: 600;
    color: var(--text-main);
    transition: all 0.3s ease;
}

.accordion-title:hover {
    color: var(--primary);
}

.accordion-title .icon {
    font-size: 14px;
    color: var(--text-muted);
    transition: transform 0.3s ease;
    flex-shrink: 0;
}

.accordion-item.active .accordion-title .icon {
    transform: rotate(180deg);
    color: var(--accent);
}

.accordion-content {
    display: none;
    padding: 0 24px 20px;
    font-size: 15px;
    color: var(--text-muted);
    line-height: 1.8;
}

.accordion-item.active .accordion-content {
    display: block;
}

.faq-bottom {
    text-align: center;
    margin-top: 32px;
}

.faq-bottom a {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    font-weight: 600;
    color: var(--primary);
}

.faq-bottom a:hover {
    color: var(--accent);
}

/* ===== CTA 联系 ===== */
.cta-section {
    background: var(--bg-alt);
    position: relative;
}

.cta-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 56px;
    align-items: center;
}

.cta-content h2 {
    font-size: 30px;
    font-weight: 700;
    color: var(--text-main);
    line-height: 1.4;
    margin-bottom: 14px;
}

.cta-content > p {
    font-size: 15px;
    color: var(--text-muted);
    margin-bottom: 28px;
    line-height: 1.8;
}

.cta-list {
    margin-bottom: 24px;
}

.cta-list li {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 10px 0;
    font-size: 15px;
    color: var(--text-main);
}

.cta-list li i {
    color: var(--success);
    font-size: 18px;
    margin-top: 4px;
    flex-shrink: 0;
}

.cta-card {
    background: var(--white);
    border-radius: var(--radius-card);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
    padding: 36px;
    border: 1px solid rgba(227, 232, 230, 0.6);
}

.cta-card h3 {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 6px;
}

.cta-card > p {
    font-size: 14px;
    color: var(--text-muted);
    margin-bottom: 24px;
}

textarea.form-control {
    height: 120px;
    padding: 12px 14px;
    resize: vertical;
}

.form-privacy {
    font-size: 12px;
    color: var(--text-muted);
    text-align: center;
    margin-top: 14px;
}

.form-privacy i {
    color: var(--success);
}

/* ===== 页脚 ===== */
.site-footer {
    background: #16211F;
    color: rgba(255, 255, 255, 0.7);
    padding: 64px 0 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
    gap: 40px;
    padding-bottom: 40px;
}

.footer-brand p {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.6);
    margin-top: 16px;
    line-height: 1.8;
}

.footer-brand .logo-text {
    font-size: 20px;
    font-weight: 700;
    color: var(--white);
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.footer-brand .logo-text i {
    color: var(--accent);
}

.footer-col h4 {
    font-size: 15px;
    font-weight: 600;
    color: var(--white);
    margin-bottom: 16px;
}

.footer-col ul li {
    margin-bottom: 8px;
}

.footer-col ul li a {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.6);
    transition: all 0.3s ease;
}

.footer-col ul li a:hover {
    color: var(--accent);
    padding-left: 4px;
}

.footer-contact li {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.6);
    margin-bottom: 12px;
}

.footer-contact li i {
    color: var(--accent);
    margin-top: 5px;
    width: 16px;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    padding: 20px 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
    font-size: 13px;
    color: rgba(255, 255, 255, 0.4);
}

.footer-bottom a {
    color: rgba(255, 255, 255, 0.4);
}

.footer-bottom a:hover {
    color: var(--accent);
}

.footer-links {
    display: flex;
    gap: 16px;
}

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
    .service-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .news-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .hero-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    .hero-title {
        font-size: 32px;
    }
    .compare-grid {
        grid-template-columns: 1fr;
        gap: 36px;
    }
    .cta-grid {
        grid-template-columns: 1fr;
        gap: 36px;
    }
    .mega-panel {
        min-width: 400px;
    }
}

@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        top: 64px;
        left: 0;
        right: 0;
        background: var(--white);
        flex-direction: column;
        align-items: flex-start;
        padding: 16px 24px;
        gap: 4px;
        border-bottom: 1px solid var(--border);
        box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
        transform: translateY(-120%);
        transition: transform 0.3s ease;
        z-index: 99;
        display: flex;
    }
    .nav-links.open {
        transform: translateY(0);
    }
    .nav-links > li {
        width: 100%;
    }
    .nav-links > li > a {
        padding: 10px 12px;
        width: 100%;
        border-radius: var(--radius-btn);
    }
    .nav-links > li > a::after {
        display: none;
    }
    .hamburger {
        display: flex;
    }
    .mega-panel {
        position: static;
        transform: none;
        min-width: 0;
        width: 100%;
        box-shadow: none;
        border: none;
        border-top: 1px solid var(--border);
        padding: 16px 12px;
        margin-top: 4px;
    }
    .has-mega:hover .mega-panel,
    .has-mega:focus-within .mega-panel {
        animation: none;
    }
    .mega-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }
    .hero-section {
        padding: 48px 0 56px;
    }
    .hero-title {
        font-size: 26px;
    }
    .hero-actions {
        flex-direction: column;
        align-items: stretch;
    }
    .hero-trust {
        flex-direction: column;
        gap: 12px;
    }
    .section-block {
        padding: 48px 0;
    }
    .section-header h2 {
        font-size: 24px;
    }
    .service-grid,
    .news-grid {
        grid-template-columns: 1fr;
    }
    .news-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 16px;
    }
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
    .compare-cards {
        grid-template-columns: 1fr;
    }
    .login-card {
        padding: 24px;
    }
    .hero-stats {
        gap: 12px;
    }
    .cta-card {
        padding: 24px;
    }
}

@media (max-width: 520px) {
    .container {
        padding: 0 16px;
    }
    .hero-title {
        font-size: 24px;
    }
    .hero-subtitle {
        font-size: 15px;
    }
    .btn {
        width: 100%;
    }
    .hero-actions .btn {
        width: 100%;
    }
    .service-card {
        padding: 24px 20px;
    }
    .compare-card {
        padding: 20px;
    }
    .footer-links {
        flex-wrap: wrap;
        justify-content: center;
    }
}

/* roulang page: category1 */
:root {
            --primary: #0E4D44;
            --primary-dark: #0A3B34;
            --accent: #E8A33D;
            --accent-dark: #D8912E;
            --bg-soft: #F5F7F6;
            --bg-gray: #EEF2F0;
            --text: #1F2933;
            --muted: #5B6B7A;
            --border: #E3E8E6;
            --white: #ffffff;
            --success: #2E9E6B;
            --warning: #D96C3F;
            --radius: 12px;
            --radius-btn: 8px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.10);
            --transition: all 0.25s ease;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            color: var(--text);
            line-height: 1.8;
            background: var(--white);
            -webkit-font-smoothing: antialiased;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: var(--transition);
        }
        img {
            max-width: 100%;
            display: block;
            height: auto;
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
        }
        ul,
        ol {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        p {
            margin: 0;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            margin: 0;
            font-weight: 600;
            line-height: 1.4;
        }
        :focus-visible {
            outline: 2px solid rgba(232, 163, 61, 0.55);
            outline-offset: 2px;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        .section {
            padding: 64px 0;
        }
        .section-head {
            text-align: center;
            max-width: 720px;
            margin: 0 auto 48px;
        }
        .section-head h2 {
            font-size: 30px;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: 0.02em;
        }
        .section-head p {
            margin-top: 12px;
            font-size: 16px;
            color: var(--muted);
        }
        .badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(46, 158, 107, 0.10);
            border: 1px solid rgba(46, 158, 107, 0.25);
            color: var(--success);
            font-size: 13px;
            font-weight: 600;
            padding: 4px 16px;
            border-radius: 20px;
            letter-spacing: 0.02em;
        }
        .badge::before {
            content: "";
            width: 7px;
            height: 7px;
            border-radius: 50%;
            background: var(--success);
            display: inline-block;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-size: 15px;
            font-weight: 600;
            line-height: 1;
            padding: 14px 32px;
            border-radius: var(--radius-btn);
            border: 1.5px solid transparent;
            cursor: pointer;
            transition: var(--transition);
            text-align: center;
            white-space: nowrap;
        }
        .btn i {
            font-size: 14px;
        }
        .btn-accent {
            background: var(--accent);
            color: #1A1A1A;
            border-color: var(--accent);
        }
        .btn-accent:hover {
            background: var(--accent-dark);
            border-color: var(--accent-dark);
            color: #1A1A1A;
            box-shadow: 0 6px 18px rgba(232, 163, 61, 0.30);
            transform: translateY(-1px);
        }
        .btn-outline {
            background: transparent;
            border-color: var(--primary);
            color: var(--primary);
        }
        .btn-outline:hover {
            background: var(--primary);
            color: #fff;
        }
        .btn-sm {
            padding: 10px 20px;
            font-size: 13px;
            border-radius: 8px;
        }
        .btn-block {
            display: flex;
            width: 100%;
        }
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: var(--white);
            border-bottom: 1px solid var(--border);
            transition: var(--transition);
        }
        .site-header.scrolled {
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
        }
        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
        }
        .nav-brand a {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 700;
            color: var(--primary);
        }
        .nav-brand a i {
            font-size: 22px;
            color: var(--accent);
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 32px;
            margin: 0;
            padding: 0;
        }
        .nav-links>li {
            position: relative;
        }
        .nav-links>li>a {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text);
            padding: 22px 0 20px;
            border-bottom: 3px solid transparent;
            transition: var(--transition);
        }
        .nav-links>li>a:hover {
            color: var(--primary);
        }
        .nav-links>li>a.active {
            color: var(--primary);
            border-bottom-color: var(--primary);
        }
        .has-mega.open .mega-toggle {
            color: var(--primary);
        }
        .mega-panel {
            position: absolute;
            top: calc(100% - 2px);
            left: 50%;
            transform: translateX(-65%) translateY(8px);
            background: var(--bg-soft);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            box-shadow: 0 12px 32px rgba(0, 0, 0, 0.12);
            width: 680px;
            padding: 28px 32px;
            opacity: 0;
            visibility: hidden;
            pointer-events: none;
            transition: var(--transition);
            z-index: 99;
        }
        .has-mega:hover .mega-panel,
        .has-mega:focus-within .mega-panel,
        .has-mega.open .mega-panel {
            opacity: 1;
            visibility: visible;
            pointer-events: auto;
            transform: translateX(-65%) translateY(0);
        }
        .mega-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 36px;
        }
        .mega-col h4 {
            font-size: 13px;
            font-weight: 700;
            color: var(--primary);
            text-transform: uppercase;
            letter-spacing: 0.08em;
            margin-bottom: 12px;
        }
        .mega-col a {
            display: block;
            font-size: 14px;
            line-height: 2.2;
            color: var(--muted);
            transition: var(--transition);
        }
        .mega-col a:hover {
            color: var(--accent-dark);
            padding-left: 4px;
        }
        .nav-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .hamburger {
            display: none;
            flex-direction: column;
            justify-content: center;
            gap: 5px;
            width: 40px;
            height: 40px;
            background: transparent;
            border: 1px solid var(--border);
            border-radius: 8px;
            padding: 8px;
        }
        .hamburger span {
            display: block;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
            transition: var(--transition);
        }
        .hamburger.active span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }
        .hamburger.active span:nth-child(2) {
            opacity: 0;
        }
        .hamburger.active span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }
        .page-hero {
            position: relative;
            background: url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
            padding: 88px 0 80px;
            margin-bottom: 0;
        }
        .page-hero::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(120deg, rgba(10, 59, 52, 0.98) 0%, rgba(14, 77, 68, 0.86) 60%, rgba(14, 77, 68, 0.45) 100%);
        }
        .page-hero .container {
            position: relative;
            z-index: 1;
        }
        .hero-content {
            max-width: 780px;
        }
        .page-hero .badge {
            background: rgba(255, 255, 255, 0.12);
            border-color: rgba(255, 255, 255, 0.25);
            color: #fff;
            margin-bottom: 18px;
        }
        .page-hero h1 {
            font-size: 40px;
            font-weight: 700;
            color: #fff;
            line-height: 1.3;
            letter-spacing: 0.01em;
            margin-bottom: 16px;
        }
        .page-hero p {
            font-size: 17px;
            color: rgba(255, 255, 255, 0.88);
            line-height: 1.8;
            max-width: 640px;
            margin-bottom: 28px;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
        }
        .page-hero .btn-accent {
            background: var(--accent);
            border-color: var(--accent);
            color: #1A1A1A;
        }
        .page-hero .btn-outline {
            border-color: #fff;
            color: #fff;
        }
        .page-hero .btn-outline:hover {
            background: #fff;
            color: var(--primary);
        }
        .chapter-section {
            background: var(--white);
            position: relative;
        }
        .card-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .info-card {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }
        .info-card:hover {
            border-color: var(--accent);
            box-shadow: var(--shadow-md);
        }
        .info-card-media {
            position: relative;
            overflow: hidden;
            height: 190px;
            background: var(--bg-gray);
        }
        .info-card-media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .info-card:hover .info-card-media img {
            transform: scale(1.04);
        }
        .info-card-media .img-fallback {
            display: flex;
            align-items: center;
            justify-content: center;
            height: 100%;
            color: var(--muted);
            font-size: 13px;
            background: var(--bg-gray);
        }
        .info-card-body {
            padding: 22px 22px 24px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }
        .info-card-body h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 10px;
            line-height: 1.5;
        }
        .info-card-body p {
            font-size: 14px;
            color: var(--muted);
            line-height: 1.7;
            flex: 1;
        }
        .info-card-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            margin-top: 16px;
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
        }
        .info-card-link:hover {
            color: var(--accent-dark);
            gap: 10px;
        }
        .info-card-link i {
            font-size: 12px;
            transition: transform 0.2s ease;
        }
        .process-section {
            background: var(--primary);
            color: #fff;
            margin: 0;
        }
        .process-section .section-head h2 {
            color: #fff;
        }
        .process-section .section-head p {
            color: rgba(255, 255, 255, 0.72);
        }
        .step-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            counter-reset: stepCounter;
        }
        .step-item {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.10);
            border-radius: var(--radius);
            padding: 28px 22px;
            text-align: left;
            position: relative;
            transition: var(--transition);
        }
        .step-item:hover {
            background: rgba(255, 255, 255, 0.10);
            border-color: rgba(232, 163, 61, 0.50);
            transform: translateY(-3px);
        }
        .step-num {
            font-size: 42px;
            font-weight: 800;
            color: rgba(232, 163, 61, 0.90);
            line-height: 1;
            margin-bottom: 14px;
            counter-increment: stepCounter;
        }
        .step-item h3 {
            font-size: 17px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 8px;
        }
        .step-item p {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.68);
            line-height: 1.7;
        }
        .safety-section {
            background: var(--bg-gray);
        }
        .safety-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .safety-item {
            background: var(--white);
            border-radius: var(--radius);
            padding: 30px 26px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border);
            transition: var(--transition);
        }
        .safety-item:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }
        .safety-icon {
            width: 52px;
            height: 52px;
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            color: var(--primary);
            background: rgba(14, 77, 68, 0.08);
            margin-bottom: 18px;
        }
        .safety-item h3 {
            font-size: 18px;
            color: var(--primary);
            margin-bottom: 8px;
        }
        .safety-item p {
            font-size: 14px;
            color: var(--muted);
            line-height: 1.7;
        }
        .safety-metrics {
            margin-top: 40px;
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
            text-align: center;
        }
        .metric-box {
            background: var(--white);
            border-radius: var(--radius);
            padding: 24px 16px;
            border: 1px solid var(--border);
        }
        .metric-num {
            font-size: 32px;
            font-weight: 700;
            color: var(--accent-dark);
            line-height: 1.2;
        }
        .metric-label {
            font-size: 13px;
            color: var(--muted);
            margin-top: 4px;
        }
        .faq-section {
            background: var(--white);
        }
        .faq-list {
            max-width: 880px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: 8px;
            margin-bottom: 14px;
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: rgba(14, 77, 68, 0.30);
        }
        .faq-item.open {
            border-left: 4px solid var(--accent);
            box-shadow: var(--shadow-sm);
        }
        .faq-q {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            text-align: left;
            background: transparent;
            border: none;
            padding: 18px 22px;
            font-size: 16px;
            font-weight: 600;
            color: var(--text);
            cursor: pointer;
            transition: var(--transition);
        }
        .faq-q:hover {
            color: var(--primary);
        }
        .faq-q .faq-icon {
            flex-shrink: 0;
            width: 22px;
            height: 22px;
            border-radius: 50%;
            background: var(--bg-soft);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 12px;
            color: var(--muted);
            transition: var(--transition);
            margin-left: 16px;
        }
        .faq-item.open .faq-icon {
            background: var(--accent);
            color: #1A1A1A;
            transform: rotate(180deg);
        }
        .faq-a {
            display: none;
            padding: 0 22px 22px;
            font-size: 14px;
            color: var(--muted);
            line-height: 1.8;
        }
        .faq-item.open .faq-a {
            display: block;
        }
        .faq-more {
            text-align: center;
            margin-top: 24px;
        }
        .faq-more a {
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
        }
        .faq-more a:hover {
            color: var(--accent-dark);
        }
        .cta-section {
            position: relative;
            background: var(--primary);
            color: #fff;
            margin: 0;
        }
        .cta-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 56px;
            align-items: center;
        }
        .cta-left h2 {
            font-size: 30px;
            font-weight: 700;
            color: #fff;
            line-height: 1.4;
            margin-bottom: 20px;
        }
        .cta-left p {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.75);
            line-height: 1.8;
            margin-bottom: 24px;
            max-width: 460px;
        }
        .cta-list {
            margin-bottom: 32px;
        }
        .cta-list li {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 15px;
            color: rgba(255, 255, 255, 0.92);
            padding: 8px 0;
        }
        .cta-list li i {
            color: var(--accent);
            font-size: 15px;
        }
        .cta-card {
            background: var(--white);
            border-radius: var(--radius);
            padding: 34px;
            box-shadow: 0 16px 48px rgba(0, 0, 0, 0.20);
            color: var(--text);
        }
        .cta-card h3 {
            font-size: 22px;
            color: var(--primary);
            margin-bottom: 6px;
        }
        .cta-card>p {
            font-size: 13px;
            color: var(--muted);
            margin-bottom: 22px;
        }
        .form-group {
            margin-bottom: 16px;
        }
        .form-group label {
            display: block;
            font-size: 13px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 6px;
        }
        .form-group input,
        .form-group textarea,
        .form-group select {
            width: 100%;
            height: 44px;
            border: 1px solid #CBD5D2;
            border-radius: 8px;
            padding: 0 14px;
            font-size: 14px;
            color: var(--text);
            background: var(--white);
            transition: var(--transition);
            appearance: auto;
        }
        .form-group textarea {
            height: 112px;
            padding: 12px 14px;
            resize: vertical;
        }
        .form-group input:focus,
        .form-group textarea:focus {
            border-color: var(--primary);
            outline: none;
            box-shadow: 0 0 0 3px rgba(14, 77, 68, 0.14);
        }
        .form-group input::placeholder,
        .form-group textarea::placeholder {
            color: #9AA6A0;
            font-size: 14px;
        }
        .privacy-note {
            font-size: 12px;
            color: var(--muted);
            margin-top: 12px;
            text-align: center;
        }
        .site-footer {
            background: #16211F;
            color: rgba(255, 255, 255, 0.70);
            padding: 56px 0 0;
            margin-top: 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.2fr 0.9fr 0.9fr 1fr;
            gap: 40px;
            padding-bottom: 32px;
        }
        .footer-brand .logo-text {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
        }
        .footer-brand .logo-text i {
            color: var(--accent);
        }
        .footer-brand p {
            font-size: 13px;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.55);
            max-width: 320px;
        }
        .footer-col h4 {
            font-size: 14px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 14px;
        }
        .footer-col ul li {
            font-size: 13px;
            padding: 4px 0;
        }
        .footer-col ul li a {
            color: rgba(255, 255, 255, 0.55);
            transition: var(--transition);
        }
        .footer-col ul li a:hover {
            color: var(--accent);
        }
        .footer-contact li {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .footer-contact i {
            color: var(--accent);
            font-size: 13px;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 20px 0;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            font-size: 13px;
        }
        .footer-links {
            display: flex;
            gap: 18px;
        }
        .footer-links a {
            color: rgba(255, 255, 255, 0.55);
        }
        .footer-links a:hover {
            color: var(--accent);
        }
        @media (max-width: 1024px) {
            .nav-links {
                position: fixed;
                top: 68px;
                left: 0;
                right: 0;
                background: var(--white);
                flex-direction: column;
                align-items: stretch;
                gap: 0;
                padding: 12px 24px;
                border-bottom: 1px solid var(--border);
                box-shadow: 0 12px 24px rgba(0, 0, 0, 0.08);
                display: none;
                max-height: calc(100vh - 68px);
                overflow-y: auto;
                z-index: 98;
            }
            .nav-links.open {
                display: flex;
            }
            .nav-links>li>a {
                padding: 14px 0;
                border-bottom: 1px solid var(--border);
                width: 100%;
            }
            .nav-links>li>a.active {
                border-bottom-color: var(--primary);
            }
            .has-mega {
                width: 100%;
            }
            .mega-toggle {
                width: 100%;
                justify-content: space-between;
            }
            .mega-panel {
                position: static;
                transform: none;
                width: 100%;
                opacity: 1;
                visibility: visible;
                pointer-events: auto;
                display: none;
                padding: 16px;
                margin-top: 0;
                box-shadow: none;
                border: 1px solid var(--border);
                border-radius: 8px;
                background: var(--bg-soft);
            }
            .has-mega.open .mega-panel {
                display: block;
            }
            .has-mega:hover .mega-panel {
                transform: none;
                opacity: 1;
                visibility: visible;
            }
            .mega-grid {
                grid-template-columns: 1fr;
                gap: 18px;
            }
            .hamburger {
                display: flex;
            }
            .card-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .step-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .safety-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .safety-metrics {
                grid-template-columns: repeat(3, 1fr);
            }
            .cta-grid {
                grid-template-columns: 1fr;
                gap: 36px;
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 640px) {
            .section {
                padding: 48px 0;
            }
            .container {
                padding: 0 20px;
            }
            .section-head h2 {
                font-size: 24px;
            }
            .section-head p {
                font-size: 15px;
            }
            .page-hero {
                padding: 56px 0 48px;
            }
            .page-hero h1 {
                font-size: 27px;
            }
            .page-hero p {
                font-size: 15px;
            }
            .hero-actions .btn {
                width: 100%;
            }
            .card-grid {
                grid-template-columns: 1fr;
            }
            .step-grid {
                grid-template-columns: 1fr;
            }
            .safety-grid {
                grid-template-columns: 1fr;
            }
            .safety-metrics {
                grid-template-columns: 1fr;
            }
            .cta-card {
                padding: 24px 20px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
            .nav-brand a {
                font-size: 17px;
            }
            .btn-sm {
                padding: 9px 14px;
                font-size: 12px;
            }
        }

/* roulang page: article */
:root {
    --primary: #0E4D44;
    --primary-dark: #0A3A33;
    --primary-light: #11695C;
    --accent: #E8A33D;
    --accent-dark: #D8912E;
    --accent-light: #F5C477;
    --bg-light: #F5F7F6;
    --bg-gray: #EEF2F0;
    --text-main: #1F2933;
    --text-sub: #5B6B7A;
    --text-light: #9AA6A0;
    --border: #E3E8E6;
    --white: #FFFFFF;
    --success: #2E9E6B;
    --warning: #D96C3F;
    --radius-card: 12px;
    --radius-btn: 8px;
    --radius-badge: 20px;
    --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
    --shadow-md: 0 8px 24px rgba(0,0,0,0.10);
    --font-main: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
    --transition: 0.22s ease;
}

*, *::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: 1.8;
    color: var(--text-main);
    background: var(--white);
    -webkit-font-smoothing: antialiased;
}

a { text-decoration: none; color: inherit; transition: color var(--transition); }
img { max-width: 100%; height: auto; display: block; }
button { cursor: pointer; font-family: inherit; }
ul, ol { list-style: none; }

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 28px;
    border-radius: var(--radius-btn);
    font-size: 15px;
    font-weight: 600;
    border: 1.5px solid transparent;
    transition: all var(--transition);
    line-height: 1.4;
    text-align: center;
    gap: 8px;
}
.btn-accent {
    background: var(--accent);
    color: #3B2D14;
    box-shadow: 0 2px 8px rgba(232, 163, 61, 0.30);
}
.btn-accent:hover {
    background: var(--accent-dark);
    color: #2A1E0A;
    box-shadow: 0 6px 16px rgba(216, 145, 46, 0.35);
    transform: translateY(-2px);
}
.btn-outline-primary {
    background: transparent;
    border-color: var(--primary);
    color: var(--primary);
}
.btn-outline-primary:hover {
    background: var(--primary);
    color: #fff;
    box-shadow: 0 4px 12px rgba(14, 77, 68, 0.25);
}
.btn-outline-light {
    background: transparent;
    border-color: rgba(255, 255, 255, 0.7);
    color: #fff;
}
.btn-outline-light:hover {
    background: rgba(255, 255, 255, 0.12);
    border-color: #fff;
    color: #fff;
}
.btn-sm {
    padding: 9px 18px;
    font-size: 13px;
    border-radius: 8px;
}
.btn:focus-visible {
    outline: 2px solid rgba(232, 163, 61, 0.5);
    outline-offset: 2px;
}

/* ===== Header ===== */
.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: var(--white);
    border-bottom: 1px solid var(--border);
    transition: box-shadow var(--transition);
}
.site-header.scrolled {
    box-shadow: 0 4px 20px rgba(0,0,0,0.08);
}
.nav-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
    gap: 20px;
}
.nav-brand a {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 20px;
    font-weight: 700;
    color: var(--primary);
    letter-spacing: 0.5px;
    white-space: nowrap;
}
.nav-brand i {
    font-size: 26px;
    color: var(--accent);
}
.nav-links {
    display: flex;
    align-items: center;
    gap: 8px;
    flex: 1;
    justify-content: center;
}
.nav-links > li { position: relative; }
.nav-links > li > a {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 10px 16px;
    font-size: 15px;
    font-weight: 500;
    color: var(--text-main);
    border-radius: 8px;
    transition: all var(--transition);
}
.nav-links > li > a:hover {
    color: var(--primary);
    background: var(--bg-light);
}
.nav-links > li > a.active {
    color: var(--primary);
    font-weight: 600;
    position: relative;
}
.nav-links > li > a.active::after {
    content: '';
    position: absolute;
    bottom: 2px;
    left: 16px;
    right: 16px;
    height: 3px;
    border-radius: 2px;
    background: var(--primary);
}
.nav-actions {
    display: flex;
    align-items: center;
    gap: 14px;
}

/* ===== Mega Menu ===== */
.has-mega {
    position: relative;
}
.mega-panel {
    position: absolute;
    top: calc(100% + 8px);
    left: 50%;
    transform: translateX(-50%) translateY(8px);
    background: var(--bg-light);
    border: 1px solid var(--border);
    border-radius: var(--radius-card);
    box-shadow: var(--shadow-md);
    padding: 20px 24px;
    width: 560px;
    opacity: 0;
    visibility: hidden;
    transition: all 0.25s ease;
    z-index: 200;
}
.has-mega:hover .mega-panel,
.has-mega:focus-within .mega-panel {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}
.mega-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}
.mega-col h4 {
    font-size: 13px;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 10px;
    letter-spacing: 0.5px;
    text-transform: uppercase;
}
.mega-col a {
    display: block;
    font-size: 14px;
    color: var(--text-sub);
    padding: 5px 0;
    line-height: 1.6;
    transition: color var(--transition), padding-left var(--transition);
}
.mega-col a:hover {
    color: var(--accent-dark);
    padding-left: 6px;
}

/* ===== Hamburger ===== */
.hamburger {
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 5px;
    width: 40px;
    height: 40px;
    background: transparent;
    border: none;
    border-radius: 8px;
    transition: background var(--transition);
}
.hamburger span {
    display: block;
    width: 20px;
    height: 2px;
    background: var(--primary);
    border-radius: 2px;
    transition: transform 0.25s ease, opacity 0.2s ease;
}
.hamburger.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.active span:nth-child(2) { opacity: 0; }
.hamburger.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ===== Breadcrumb ===== */
.breadcrumb {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 6px;
    font-size: 13px;
    color: var(--text-sub);
    padding: 14px 0 4px;
}
.breadcrumb a { color: var(--text-sub); transition: color var(--transition); }
.breadcrumb a:hover { color: var(--primary); }
.breadcrumb .sep { color: var(--text-light); }
.breadcrumb .current { color: var(--text-light); max-width: 260px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; display: inline-block; }

/* ===== Article Hero ===== */
.article-hero {
    background: linear-gradient(180deg, var(--bg-light) 0%, #fff 100%);
    padding: 24px 0 32px;
    border-bottom: 1px solid var(--border);
}
.article-hero h1 {
    font-size: 34px;
    font-weight: 700;
    line-height: 1.4;
    color: var(--primary-dark);
    margin: 16px 0 12px;
    max-width: 860px;
    letter-spacing: 0.5px;
}
.article-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    align-items: center;
    color: var(--text-sub);
    font-size: 14px;
}
.meta-item {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 12px;
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--radius-badge);
    font-size: 13px;
}
.meta-item i { color: var(--primary); }

/* ===== Article Main ===== */
.article-main {
    padding: 48px 0 64px;
    background: var(--white);
}
.article-body {
    max-width: 720px;
    margin: 0 auto;
    font-size: 16px;
    line-height: 1.8;
    color: var(--text-main);
}
.article-body p {
    margin-bottom: 1.2em;
    letter-spacing: 0.2px;
}
.article-body h2 {
    font-size: 26px;
    font-weight: 700;
    color: var(--primary-dark);
    margin: 48px 0 16px;
    line-height: 1.4;
    padding-bottom: 10px;
    border-bottom: 2px solid var(--bg-gray);
}
.article-body h3 {
    font-size: 20px;
    font-weight: 600;
    color: var(--primary);
    margin: 36px 0 12px;
    line-height: 1.4;
}
.article-body h4 {
    font-size: 17px;
    font-weight: 600;
    color: var(--text-main);
    margin: 28px 0 10px;
}
.article-body ul,
.article-body ol {
    margin: 16px 0 20px 26px;
}
.article-body ul li {
    list-style: disc;
    margin-bottom: 8px;
    padding-left: 4px;
}
.article-body ol li {
    list-style: decimal;
    margin-bottom: 8px;
    padding-left: 4px;
}
.article-body a {
    color: var(--primary);
    border-bottom: 1px solid transparent;
    font-weight: 500;
    transition: all var(--transition);
}
.article-body a:hover {
    color: var(--accent-dark);
    border-bottom-color: var(--accent-dark);
}
.article-body blockquote {
    margin: 28px 0;
    padding: 18px 24px;
    background: var(--bg-light);
    border-left: 4px solid var(--primary);
    border-radius: 0 8px 8px 0;
    color: var(--text-sub);
    font-size: 15px;
    line-height: 1.8;
}
.article-body pre {
    background: #1F2933;
    color: #E5E7EB;
    padding: 20px;
    border-radius: 8px;
    overflow-x: auto;
    font-size: 14px;
    line-height: 1.6;
    margin: 24px 0;
}
.article-body code {
    font-family: "Consolas", "Courier New", monospace;
    font-size: 14px;
}
.article-body p code {
    background: var(--bg-gray);
    padding: 2px 6px;
    border-radius: 4px;
    color: var(--primary-dark);
}
.article-body img {
    border-radius: var(--radius-card);
    box-shadow: var(--shadow-sm);
    margin: 24px 0;
}
.article-body figure {
    margin: 24px 0;
}
.article-body figcaption {
    text-align: center;
    font-size: 13px;
    color: var(--text-light);
    margin-top: 8px;
}
.article-body table {
    width: 100%;
    border-collapse: collapse;
    margin: 24px 0;
    font-size: 15px;
}
.article-body th,
.article-body td {
    border: 1px solid var(--border);
    padding: 10px 14px;
    text-align: left;
}
.article-body th {
    background: var(--bg-gray);
    font-weight: 600;
    color: var(--primary-dark);
}
.article-body hr {
    border: none;
    border-top: 1px solid var(--border);
    margin: 32px 0;
}

/* ===== Article Empty ===== */
.article-empty {
    text-align: center;
    padding: 64px 20px;
    background: var(--bg-light);
    border-radius: var(--radius-card);
    max-width: 720px;
    margin: 0 auto;
}
.empty-icon {
    width: 72px;
    height: 72px;
    margin: 0 auto 20px;
    background: var(--bg-gray);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 30px;
    color: var(--text-light);
}
.empty-text {
    font-size: 17px;
    color: var(--text-sub);
    margin-bottom: 20px;
}

/* ===== Related Section ===== */
.related-section {
    background: var(--bg-light);
    padding: 64px 0;
}
.section-head {
    text-align: center;
    margin-bottom: 36px;
}
.section-head h2 {
    font-size: 28px;
    font-weight: 700;
    color: var(--primary-dark);
    margin-bottom: 6px;
}
.section-head p {
    font-size: 15px;
    color: var(--text-sub);
}
.related-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-bottom: 36px;
}
.related-card {
    background: var(--white);
    border-radius: var(--radius-card);
    border: 1px solid var(--border);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
    transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
    display: flex;
    flex-direction: column;
}
.related-card:hover {
    box-shadow: var(--shadow-md);
    border-color: var(--accent);
    transform: translateY(-2px);
}
.related-thumb {
    display: block;
    overflow: hidden;
    aspect-ratio: 16 / 9;
    background: var(--bg-gray);
}
.related-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.35s ease;
}
.related-card:hover .related-thumb img {
    transform: scale(1.03);
}
.related-body {
    padding: 20px;
    display: flex;
    flex-direction: column;
    flex: 1;
}
.related-body h3 {
    font-size: 17px;
    font-weight: 600;
    line-height: 1.5;
    margin-bottom: 8px;
    color: var(--primary-dark);
}
.related-body h3 a { transition: color var(--transition); }
.related-body h3 a:hover { color: var(--accent-dark); }
.related-body p {
    font-size: 14px;
    color: var(--text-sub);
    line-height: 1.7;
    margin-bottom: 14px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    flex: 1;
}
.related-tag {
    font-size: 12px;
    color: var(--text-light);
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 4px 10px;
    background: var(--bg-light);
    border-radius: var(--radius-badge);
    align-self: flex-start;
}

/* ===== Article Back Nav ===== */
.article-back-nav {
    display: flex;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
    margin-top: 8px;
}

/* ===== Article CTA ===== */
.article-cta {
    background: linear-gradient(rgba(10, 58, 51, 0.9), rgba(10, 58, 51, 0.9)), url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
    padding: 56px 0;
    text-align: center;
    color: #fff;
}
.article-cta h2 {
    font-size: 26px;
    font-weight: 700;
    margin-bottom: 10px;
}
.article-cta p {
    font-size: 15px;
    color: rgba(255, 255, 255, 0.85);
    margin-bottom: 24px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}
.cta-buttons {
    display: flex;
    gap: 14px;
    justify-content: center;
    flex-wrap: wrap;
}

/* ===== Footer ===== */
.site-footer {
    background: #16211F;
    color: rgba(255, 255, 255, 0.75);
    padding: 56px 0 0;
    font-size: 14px;
}
.footer-grid {
    display: grid;
    grid-template-columns: 1.4fr 1fr 1fr 1fr;
    gap: 40px;
    padding-bottom: 36px;
}
.footer-brand .logo-text {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-size: 20px;
    font-weight: 700;
    color: #fff;
    margin-bottom: 14px;
}
.footer-brand .logo-text i {
    color: var(--accent);
    font-size: 24px;
}
.footer-brand p {
    line-height: 1.8;
    color: rgba(255, 255, 255, 0.6);
    max-width: 320px;
}
.footer-col h4 {
    font-size: 15px;
    font-weight: 600;
    color: #fff;
    margin-bottom: 14px;
}
.footer-col ul li {
    margin-bottom: 8px;
}
.footer-col ul li a {
    color: rgba(255, 255, 255, 0.6);
    transition: color var(--transition), padding-left var(--transition);
}
.footer-col ul li a:hover {
    color: var(--accent);
    padding-left: 4px;
}
.footer-contact li {
    display: flex;
    align-items: center;
    gap: 8px;
    color: rgba(255, 255, 255, 0.6);
}
.footer-contact i {
    color: var(--accent);
    width: 16px;
    text-align: center;
}
.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding: 20px 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 10px;
    font-size: 13px;
    color: rgba(255, 255, 255, 0.45);
}
.footer-links {
    display: flex;
    gap: 16px;
}
.footer-links a {
    color: rgba(255, 255, 255, 0.45);
    transition: color var(--transition);
}
.footer-links a:hover {
    color: var(--accent);
}

/* ===== Responsive ===== */
@media (max-width: 1023.98px) {
    .nav-inner {
        height: auto;
        min-height: 64px;
    }
    .nav-links {
        display: none;
        position: absolute;
        top: 64px;
        left: 0;
        right: 0;
        background: var(--white);
        flex-direction: column;
        align-items: stretch;
        gap: 0;
        padding: 12px 20px 20px;
        border-bottom: 1px solid var(--border);
        box-shadow: 0 12px 24px rgba(0,0,0,0.08);
        z-index: 99;
    }
    .nav-links.open { display: flex; }
    .nav-links > li > a {
        padding: 12px 14px;
        font-size: 15px;
        border-radius: 8px;
        justify-content: space-between;
    }
    .nav-links > li > a.active::after { display: none; }
    .nav-links > li > a.active { background: var(--bg-light); }
    .has-mega .mega-panel {
        position: static;
        transform: none;
        width: 100%;
        opacity: 1;
        visibility: visible;
        box-shadow: none;
        border: none;
        border-left: 3px solid var(--primary);
        border-radius: 0 8px 8px 0;
        padding: 12px 16px;
        margin: 6px 0 6px 10px;
        background: var(--bg-light);
        display: none;
    }
    .has-mega .mega-panel.open { display: block; }
    .mega-grid { grid-template-columns: 1fr 1fr; gap: 16px; }
    .hamburger { display: flex; }
    .nav-actions { margin-left: auto; }

    .article-hero h1 { font-size: 28px; }
    .related-grid { grid-template-columns: repeat(2, 1fr); }
    .footer-grid { grid-template-columns: 1fr 1fr; gap: 28px; }
}

@media (max-width: 639.98px) {
    .nav-links > li > a { font-size: 14px; padding: 10px 12px; }
    .btn-sm { padding: 8px 14px; font-size: 12px; }
    .mega-grid { grid-template-columns: 1fr; }
    .mega-col a { font-size: 13px; }
    .article-hero { padding: 18px 0 24px; }
    .article-hero h1 { font-size: 24px; }
    .article-main { padding: 32px 0 48px; }
    .article-body { font-size: 15px; }
    .article-body h2 { font-size: 22px; }
    .article-body h3 { font-size: 18px; }
    .related-section { padding: 48px 0; }
    .related-grid { grid-template-columns: 1fr; gap: 16px; }
    .section-head h2 { font-size: 22px; }
    .article-back-nav { flex-direction: column; align-items: center; gap: 12px; }
    .article-cta { padding: 40px 0; }
    .footer-grid { grid-template-columns: 1fr; gap: 24px; padding-bottom: 24px; }
    .footer-bottom { flex-direction: column; text-align: center; }
    .breadcrumb { font-size: 12px; }
}

@media (max-width: 480px) {
    .container { padding: 0 16px; }
    .nav-brand a { font-size: 17px; }
    .nav-brand i { font-size: 22px; }
    .btn { padding: 10px 20px; font-size: 14px; }
    .article-hero h1 { font-size: 22px; }
    .meta-item { font-size: 12px; padding: 3px 8px; }
    .related-body { padding: 18px; }
}