/* roulang page: index */
:root {
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --primary-light: #60a5fa;
    --secondary: #0ea5e9;
    --accent: #f59e0b;
    --bg: #f8fafc;
    --bg-white: #ffffff;
    --dark: #0f172a;
    --dark-2: #1e293b;
    --text: #1e293b;
    --text-muted: #64748b;
    --border: #e2e8f0;
    --shadow-sm: 0 2px 10px rgba(2, 12, 27, 0.05);
    --shadow-md: 0 10px 30px rgba(2, 12, 27, 0.08);
    --shadow-lg: 0 24px 56px rgba(2, 12, 27, 0.12);
    --radius-sm: 10px;
    --radius-md: 18px;
    --radius-lg: 28px;
    --radius-full: 999px;
    --space-sm: 12px;
    --space-md: 24px;
    --space-lg: 48px;
    --space-xl: 80px;
    --container: 1200px;
    --header-h: 76px;
}
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}
html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}
body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    font-size: 16px;
    line-height: 1.7;
    color: var(--text);
    background: var(--bg);
    -webkit-font-smoothing: antialiased;
}
img {
    max-width: 100%;
    height: auto;
    display: block;
    border-radius: var(--radius-md);
}
a {
    color: var(--primary);
    text-decoration: none;
    transition: color .2s ease;
}
a:hover {
    color: var(--primary-dark);
}
button, input, select, textarea {
    font: inherit;
    color: inherit;
}
.container {
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 var(--space-md);
}
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 32px;
    border-radius: var(--radius-full);
    font-size: 15px;
    font-weight: 600;
    line-height: 1.2;
    border: none;
    cursor: pointer;
    transition: all .25s ease;
    text-decoration: none;
    white-space: nowrap;
}
.btn-primary {
    background: var(--primary);
    color: #fff;
    box-shadow: 0 4px 18px rgba(37, 99, 235, 0.32);
}
.btn-primary:hover {
    background: var(--primary-dark);
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(37, 99, 235, 0.4);
}
.btn-light {
    background: #fff;
    color: var(--primary);
}
.btn-light:hover {
    background: #f1f5f9;
    color: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(255, 255, 255, 0.25);
}
.btn-ghost {
    background: transparent;
    color: #fff;
    border: 1.5px solid rgba(255, 255, 255, 0.45);
}
.btn-ghost:hover {
    background: rgba(255, 255, 255, 0.12);
    color: #fff;
    border-color: #fff;
}
.btn-block {
    width: 100%;
}
.badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 16px;
    border-radius: var(--radius-full);
    font-size: 13px;
    font-weight: 600;
    background: rgba(37, 99, 235, 0.1);
    color: var(--primary);
}
.badge-light {
    background: rgba(255, 255, 255, 0.18);
    color: #fff;
    backdrop-filter: blur(4px);
}
.section {
    padding: var(--space-xl) 0;
}
.section-head {
    max-width: 640px;
    margin: 0 auto var(--space-lg);
    text-align: center;
}
.section-tag {
    display: inline-block;
    padding: 5px 16px;
    border-radius: var(--radius-full);
    background: rgba(37, 99, 235, 0.08);
    color: var(--primary);
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.5px;
    margin-bottom: 14px;
}
.section-head h2 {
    font-size: 36px;
    line-height: 1.3;
    color: var(--dark);
    margin-bottom: 12px;
    font-weight: 700;
    letter-spacing: -0.5px;
}
.section-head p {
    color: var(--text-muted);
    font-size: 16px;
    line-height: 1.7;
}
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.86);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid rgba(226, 232, 240, 0.7);
    box-shadow: 0 1px 20px rgba(2, 12, 27, 0.04);
}
.nav-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: var(--header-h);
    gap: 24px;
}
.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    flex-shrink: 0;
}
.logo-mark {
    width: 40px;
    height: 40px;
    border-radius: 12px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    font-weight: 800;
    color: #fff;
    box-shadow: 0 4px 14px rgba(37, 99, 235, 0.35);
}
.logo-text {
    font-size: 19px;
    font-weight: 700;
    color: var(--dark);
    letter-spacing: -0.3px;
    line-height: 1.2;
}
.nav-links {
    display: flex;
    align-items: center;
    gap: 4px;
    margin-left: 8px;
}
.nav-links a {
    display: inline-flex;
    align-items: center;
    padding: 10px 18px;
    border-radius: var(--radius-full);
    font-size: 14.5px;
    font-weight: 500;
    color: var(--text);
    transition: all .2s ease;
    position: relative;
}
.nav-links a:hover {
    background: rgba(37, 99, 235, 0.06);
    color: var(--primary);
}
.nav-links a.active {
    background: rgba(37, 99, 235, 0.1);
    color: var(--primary);
    font-weight: 600;
}
.nav-right {
    display: flex;
    align-items: center;
    gap: 14px;
    flex-shrink: 0;
}
.nav-search {
    display: flex;
    align-items: center;
    gap: 8px;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-full);
    padding: 9px 16px;
    width: 210px;
    transition: all .25s ease;
}
.nav-search:focus-within {
    border-color: var(--primary-light);
    box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.1);
    background: #fff;
}
.nav-search input {
    border: none;
    outline: none;
    background: transparent;
    font-size: 14px;
    width: 100%;
}
.nav-search svg {
    flex-shrink: 0;
    color: var(--text-muted);
}
.menu-toggle {
    display: none;
    width: 44px;
    height: 44px;
    border: 1px solid var(--border);
    border-radius: 14px;
    background: #fff;
    cursor: pointer;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    gap: 4px;
    transition: all .2s ease;
}
.menu-toggle:hover {
    border-color: var(--primary-light);
    background: var(--bg);
}
.menu-toggle span {
    display: block;
    width: 18px;
    height: 2px;
    border-radius: 2px;
    background: var(--dark);
    transition: all .25s ease;
}
.menu-toggle.active span:nth-child(1) {
    transform: translateY(6px) rotate(45deg);
}
.menu-toggle.active span:nth-child(2) {
    opacity: 0;
}
.menu-toggle.active span:nth-child(3) {
    transform: translateY(-6px) rotate(-45deg);
}
.hero {
    position: relative;
    padding: calc(var(--header-h) + 80px) 0 100px;
    background-image: linear-gradient(120deg, rgba(15, 23, 42, 0.94) 0%, rgba(15, 23, 42, 0.78) 45%, rgba(37, 99, 235, 0.7) 100%), url('/assets/images/backpic/back-1.png');
    background-size: cover;
    background-position: center center;
    background-repeat: no-repeat;
    color: #fff;
    overflow: hidden;
}
.hero-inner {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 60px;
    align-items: center;
}
.hero-content {
    max-width: 620px;
}
.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 20px;
    border-radius: var(--radius-full);
    background: rgba(255, 255, 255, 0.12);
    border: 1px solid rgba(255, 255, 255, 0.2);
    font-size: 13.5px;
    font-weight: 500;
    color: #e0e7ff;
    margin-bottom: 26px;
    backdrop-filter: blur(4px);
}
.hero-badge .dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #34d399;
    box-shadow: 0 0 12px rgba(52, 211, 153, 0.6);
}
.hero h1 {
    font-size: 46px;
    line-height: 1.2;
    font-weight: 800;
    letter-spacing: -1px;
    margin-bottom: 20px;
    color: #fff;
}
.hero h1 span {
    background: linear-gradient(90deg, #93c5fd, #38bdf8);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.hero-desc {
    font-size: 17px;
    line-height: 1.8;
    color: rgba(255, 255, 255, 0.78);
    margin-bottom: 34px;
}
.hero-actions {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    margin-bottom: 48px;
}
.hero-stats {
    display: flex;
    gap: 40px;
    flex-wrap: wrap;
}
.hero-stat {
    display: flex;
    flex-direction: column;
}
.hero-stat strong {
    font-size: 28px;
    font-weight: 800;
    color: #fff;
    line-height: 1.2;
}
.hero-stat span {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.65);
    margin-top: 4px;
}
.hero-panel {
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.18);
    border-radius: var(--radius-lg);
    padding: 28px;
    backdrop-filter: blur(20px);
    box-shadow: 0 30px 60px rgba(0, 0, 0, 0.25);
}
.hero-panel-head {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 24px;
    padding-bottom: 18px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}
.panel-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
}
.panel-dot.red { background: #f87171; }
.panel-dot.yellow { background: #fbbf24; }
.panel-dot.green { background: #34d399; }
.panel-title {
    font-size: 14px;
    font-weight: 600;
    color: rgba(255, 255, 255, 0.85);
    margin-left: 8px;
}
.panel-body {
    display: flex;
    flex-direction: column;
    gap: 18px;
    margin-bottom: 26px;
}
.status-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.status-label {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.6);
}
.status-value {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 14px;
    font-weight: 600;
    color: #e2e8f0;
}
.status-value .status-dot {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: #34d399;
    box-shadow: 0 0 8px rgba(52, 211, 153, 0.5);
}
.features {
    background: var(--bg-white);
}
.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}
.feature-card {
    background: var(--bg-white);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 36px 28px;
    transition: all .3s ease;
}
.feature-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-md);
    border-color: rgba(37, 99, 235, 0.2);
}
.feature-icon {
    width: 56px;
    height: 56px;
    border-radius: 16px;
    background: rgba(37, 99, 235, 0.08);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    color: var(--primary);
    transition: all .3s ease;
}
.feature-card:hover .feature-icon {
    background: var(--primary);
    color: #fff;
    box-shadow: 0 8px 24px rgba(37, 99, 235, 0.3);
}
.feature-card h3 {
    font-size: 19px;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 10px;
}
.feature-card p {
    font-size: 14.5px;
    color: var(--text-muted);
    line-height: 1.7;
}
.category-section {
    background: var(--bg);
    position: relative;
}
.category-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 28px;
}
.category-card {
    display: flex;
    flex-direction: column;
    border-radius: var(--radius-lg);
    overflow: hidden;
    background: #fff;
    border: 1px solid var(--border);
    transition: all .3s ease;
    text-decoration: none;
    color: var(--text);
}
.category-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-6px);
    text-decoration: none;
    color: var(--text);
}
.category-card-media {
    position: relative;
    height: 220px;
    overflow: hidden;
}
.category-card-media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform .6s ease;
}
.category-card:hover .category-card-media img {
    transform: scale(1.05);
}
.category-card-media::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(15, 23, 42, 0.35), transparent 60%);
}
.category-card-body {
    padding: 28px;
    flex: 1;
    display: flex;
    flex-direction: column;
}
.category-card-body h3 {
    font-size: 20px;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 10px;
}
.category-card-body p {
    font-size: 14.5px;
    color: var(--text-muted);
    line-height: 1.7;
    flex: 1;
}
.category-card-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin-top: 18px;
    font-size: 14px;
    font-weight: 600;
    color: var(--primary);
}
.overview {
    background: var(--bg-white);
    border-bottom: 1px solid var(--border);
}
.overview-inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}
.overview-media img {
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    width: 100%;
    object-fit: cover;
}
.overview-content h2 {
    font-size: 34px;
    line-height: 1.3;
    color: var(--dark);
    margin-bottom: 16px;
    font-weight: 700;
    letter-spacing: -0.4px;
}
.overview-content > p {
    font-size: 15.5px;
    color: var(--text-muted);
    line-height: 1.8;
    margin-bottom: 24px;
}
.check-list {
    list-style: none;
    padding: 0;
    margin: 0 0 28px;
    display: flex;
    flex-direction: column;
    gap: 14px;
}
.check-list li {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    font-size: 15px;
    color: var(--text);
}
.check-list li svg {
    flex-shrink: 0;
    margin-top: 3px;
    color: var(--primary);
}
.news {
    background: var(--bg);
}
.news-list {
    max-width: 860px;
    margin: 0 auto;
    background: #fff;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
}
.news-row {
    display: block;
    padding: 26px 32px;
    border-bottom: 1px solid var(--border);
    transition: all .25s ease;
    text-decoration: none;
    color: var(--text);
}
.news-row:last-child {
    border-bottom: none;
}
.news-row:hover {
    background: rgba(37, 99, 235, 0.02);
}
.news-info {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 8px;
}
.news-cat {
    padding: 3px 12px;
    border-radius: var(--radius-full);
    background: rgba(37, 99, 235, 0.08);
    color: var(--primary);
    font-size: 12.5px;
    font-weight: 600;
}
.news-time {
    font-size: 13px;
    color: var(--text-muted);
}
.news-title {
    font-size: 17px;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 6px;
    transition: color .2s ease;
}
.news-title a {
    color: inherit;
    text-decoration: none;
}
.news-row:hover .news-title a {
    color: var(--primary);
}
.news-desc {
    font-size: 14.5px;
    color: var(--text-muted);
    line-height: 1.7;
    margin: 0;
}
.news-empty {
    text-align: center;
    padding: 60px 24px;
    color: var(--text-muted);
    font-size: 15px;
}
.flow {
    background: var(--bg-white);
}
.flow-steps {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    position: relative;
}
.flow-step {
    text-align: center;
    padding: 32px 20px;
    border-radius: var(--radius-md);
    background: var(--bg);
    border: 1px solid var(--border);
    position: relative;
    transition: all .3s ease;
}
.flow-step:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-4px);
}
.flow-step::after {
    content: '';
    position: absolute;
    top: 50%;
    right: -24px;
    width: 24px;
    height: 2px;
    background: var(--border);
    background-image: linear-gradient(90deg, var(--border), var(--border) 60%, transparent 60%);
    background-size: 8px 2px;
    background-repeat: repeat-x;
}
.flow-step:last-child::after {
    display: none;
}
.step-num {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--primary);
    color: #fff;
    font-size: 13px;
    font-weight: 700;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 16px;
}
.step-icon {
    font-size: 36px;
    margin-bottom: 16px;
}
.flow-step h3 {
    font-size: 17px;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 8px;
}
.flow-step p {
    font-size: 13.5px;
    color: var(--text-muted);
    line-height: 1.6;
}
.stats {
    position: relative;
    padding: var(--space-xl) 0;
    background-image: linear-gradient(120deg, rgba(15, 23, 42, 0.92), rgba(29, 78, 216, 0.85)), url('/assets/images/backpic/back-2.png');
    background-size: cover;
    background-position: center;
    color: #fff;
    text-align: center;
}
.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 40px;
    margin-top: 40px;
}
.stat-item {
    padding: 30px 20px;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: var(--radius-md);
    backdrop-filter: blur(8px);
    transition: all .3s ease;
}
.stat-item:hover {
    background: rgba(255, 255, 255, 0.12);
    transform: translateY(-4px);
}
.stat-item strong {
    font-size: 40px;
    font-weight: 800;
    display: block;
    line-height: 1.2;
    margin-bottom: 8px;
}
.stat-item span {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.75);
}
.faq {
    background: var(--bg);
}
.faq-list {
    max-width: 820px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 14px;
}
.faq-item {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    overflow: hidden;
    transition: all .25s ease;
}
.faq-item:hover {
    border-color: rgba(37, 99, 235, 0.25);
    box-shadow: var(--shadow-sm);
}
.faq-item summary {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 22px 28px;
    font-size: 16px;
    font-weight: 600;
    color: var(--dark);
    cursor: pointer;
    list-style: none;
    transition: color .2s;
}
.faq-item summary::-webkit-details-marker {
    display: none;
}
.faq-item summary:hover {
    color: var(--primary);
}
.faq-item .faq-icon {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: rgba(37, 99, 235, 0.08);
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    font-size: 18px;
    font-weight: 400;
    transition: all .3s ease;
}
.faq-item[open] .faq-icon {
    background: var(--primary);
    color: #fff;
    transform: rotate(45deg);
}
.faq-item .faq-p {
    padding: 0 28px 24px;
    color: var(--text-muted);
    font-size: 14.5px;
    line-height: 1.8;
    border-top: 1px dashed var(--border);
    margin: 0 0 0 0;
}
.faq-item .faq-p {
    padding-top: 16px;
}
.cta {
    padding: var(--space-xl) 0;
    background: var(--bg-white);
}
.cta-box {
    max-width: 860px;
    margin: 0 auto;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    border-radius: var(--radius-lg);
    padding: 56px 48px;
    text-align: center;
    color: #fff;
    box-shadow: 0 30px 70px rgba(37, 99, 235, 0.3);
    position: relative;
    overflow: hidden;
}
.cta-box::before {
    content: '';
    position: absolute;
    top: -60px;
    right: -60px;
    width: 200px;
    height: 200px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
}
.cta-box::after {
    content: '';
    position: absolute;
    bottom: -80px;
    left: -40px;
    width: 160px;
    height: 160px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.07);
}
.cta-box h2 {
    font-size: 34px;
    font-weight: 800;
    margin-bottom: 12px;
    position: relative;
    z-index: 1;
}
.cta-box p {
    font-size: 16px;
    color: rgba(255, 255, 255, 0.85);
    margin-bottom: 30px;
    position: relative;
    z-index: 1;
}
.cta-box .btn {
    position: relative;
    z-index: 1;
}
.site-footer {
    background: var(--dark);
    color: rgba(255, 255, 255, 0.7);
    padding: 48px 0 28px;
}
.footer-inner {
    display: flex;
    justify-content: space-between;
    gap: 40px;
    flex-wrap: wrap;
    margin-bottom: 32px;
}
.footer-brand {
    max-width: 320px;
}
.footer-brand .logo-text {
    color: #fff;
    font-size: 20px;
    font-weight: 700;
}
.footer-brand p {
    font-size: 14px;
    line-height: 1.7;
    color: rgba(255, 255, 255, 0.6);
    margin-top: 14px;
}
.footer-links-group {
    display: flex;
    gap: 48px;
    flex-wrap: wrap;
}
.footer-links-group .group-title {
    font-size: 14px;
    font-weight: 700;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 14px;
}
.footer-links-group ul {
    list-style: none;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 10px;
}
.footer-links-group a {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.6);
    text-decoration: none;
    transition: all .2s ease;
}
.footer-links-group a:hover {
    color: #fff;
}
.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 20px;
    text-align: center;
    font-size: 13px;
    color: rgba(255, 255, 255, 0.45);
}
@media (max-width: 1024px) {
    .nav-search {
        width: 160px;
    }
    .hero-inner {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    .hero-panel {
        max-width: 520px;
    }
    .hero h1 {
        font-size: 38px;
    }
    .features-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 18px;
    }
    .flow-steps {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }
    .flow-step::after {
        display: none;
    }
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .overview-inner {
        grid-template-columns: 1fr;
        gap: 36px;
    }
    .footer-inner {
        flex-direction: column;
        gap: 32px;
    }
}
@media (max-width: 768px) {
    :root {
        --space-xl: 56px;
    }
    .nav-inner {
        height: 64px;
    }
    .nav-links {
        position: fixed;
        top: 64px;
        left: 0;
        right: 0;
        background: #fff;
        flex-direction: column;
        align-items: flex-start;
        gap: 0;
        padding: 12px 24px 20px;
        border-bottom: 1px solid var(--border);
        box-shadow: var(--shadow-md);
        transform: translateY(-120%);
        opacity: 0;
        transition: all .35s ease;
        z-index: 999;
        pointer-events: none;
    }
    .nav-links.open {
        transform: translateY(0);
        opacity: 1;
        pointer-events: auto;
    }
    .nav-links a {
        width: 100%;
        padding: 14px 12px;
        font-size: 15px;
        border-radius: var(--radius-sm);
    }
    .nav-right .nav-search {
        display: none;
    }
    .menu-toggle {
        display: flex;
    }
    .nav-right .btn-primary {
        padding: 10px 20px;
        font-size: 14px;
    }
    .hero {
        padding: calc(var(--header-h) + 48px) 0 64px;
    }
    .hero h1 {
        font-size: 31px;
    }
    .hero-desc {
        font-size: 15px;
    }
    .hero-actions {
        flex-direction: column;
        align-items: stretch;
    }
    .hero-actions .btn {
        width: 100%;
    }
    .hero-stats {
        gap: 24px;
    }
    .hero-stat strong {
        font-size: 24px;
    }
    .features-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    .category-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    .section-head h2 {
        font-size: 28px;
    }
    .cta-box {
        padding: 40px 24px;
    }
    .cta-box h2 {
        font-size: 26px;
    }
    .news-row {
        padding: 20px 20px;
    }
    .cta-box .btn {
        width: 100%;
    }
}
@media (max-width: 520px) {
    .hero-stats {
        flex-direction: column;
        gap: 12px;
    }
    .hero-stat {
        flex-direction: row;
        align-items: baseline;
        gap: 8px;
    }
    .hero-stat strong {
        font-size: 22px;
    }
    .flow-steps {
        grid-template-columns: 1fr;
        gap: 16px;
    }
    .stats-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }
    .stat-item {
        padding: 20px;
    }
    .stat-item strong {
        font-size: 32px;
    }
    .hero-panel {
        padding: 20px;
    }
    .panel-body {
        gap: 14px;
    }
    .category-card-media {
        height: 180px;
    }
    .category-card-body {
        padding: 22px;
    }
    .section-head h2 {
        font-size: 24px;
    }
    .section-head p {
        font-size: 14.5px;
    }
    .nav-right .btn-primary {
        display: none;
    }
    .logo-text {
        font-size: 16px;
    }
    .footer-links-group {
        flex-direction: column;
        gap: 24px;
    }
}
@media (min-width: 1025px) {
    .nav-links {
        display: flex !important;
    }
}

/* roulang page: category1 */
:root {
  --primary: #d97706;
  --primary-light: #fbbf24;
  --primary-dark: #92400e;
  --secondary: #1e1b4b;
  --secondary-light: #312e81;
  --bg: #f8fafc;
  --bg-dark: #0f172a;
  --bg-card: #ffffff;
  --text: #1e293b;
  --text-light: #64748b;
  --border: #e2e8f0;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 24px;
  --radius-pill: 999px;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.08);
  --shadow-lg: 0 12px 40px rgba(0,0,0,0.12);
  --gradient-gold: linear-gradient(135deg, #f59e0b 0%, #d97706 50%, #b45309 100%);
  --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body { font-family: "Inter", -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif; font-size: 16px; line-height: 1.7; color: var(--text); background: var(--bg); -webkit-font-smoothing: antialiased; }
a { color: inherit; text-decoration: none; transition: color var(--transition); }
img { max-width: 100%; height: auto; display: block; }
button, input { font-family: inherit; font-size: inherit; border: none; outline: none; background: none; }
ul, ol { list-style: none; }
.container { width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 24px; }

/* Header */
.site-header { position: sticky; top: 0; z-index: 1000; background: rgba(255,255,255,0.88); backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px); border-bottom: 1px solid rgba(226,232,240,0.8); }
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: 72px; gap: 32px; }
.nav-logo { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.logo-mark { width: 38px; height: 38px; display: flex; align-items: center; justify-content: center; background: var(--gradient-gold); color: #fff; font-weight: 800; font-size: 18px; border-radius: 10px; box-shadow: 0 4px 12px rgba(217,119,6,0.35); }
.logo-text { font-weight: 700; font-size: 19px; letter-spacing: 0.5px; color: var(--text); }
.nav-links { display: flex; align-items: center; gap: 4px; flex: 1; justify-content: center; }
.nav-links a { padding: 8px 18px; border-radius: var(--radius-pill); font-size: 14px; font-weight: 500; color: var(--text-light); transition: all var(--transition); }
.nav-links a:hover { color: var(--text); background: #f1f5f9; }
.nav-links a.active { color: var(--primary); background: rgba(217,119,6,0.08); font-weight: 600; }
.nav-right { display: flex; align-items: center; gap: 14px; flex-shrink: 0; }
.nav-search { position: relative; display: flex; align-items: center; }
.nav-search svg { position: absolute; left: 14px; color: var(--text-light); pointer-events: none; }
.nav-search input { width: 200px; height: 40px; background: #f1f5f9; border: 1px solid transparent; border-radius: var(--radius-pill); padding: 0 14px 0 40px; font-size: 13px; color: var(--text); transition: all var(--transition); }
.nav-search input:focus { width: 240px; background: #fff; border-color: var(--primary); box-shadow: 0 0 0 4px rgba(217,119,6,0.12); }
.btn { display: inline-flex; align-items: center; justify-content: center; font-weight: 600; border-radius: var(--radius-pill); transition: all var(--transition); cursor: pointer; white-space: nowrap; }
.btn-primary { background: var(--gradient-gold); color: #fff; box-shadow: 0 4px 14px rgba(217,119,6,0.3); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(217,119,6,0.4); }
.btn-primary:active { transform: translateY(0); box-shadow: 0 2px 8px rgba(217,119,6,0.3); }
.btn-small { padding: 10px 22px; font-size: 14px; }
.btn:focus-visible, .nav-links a:focus-visible, .nav-search input:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; }
.menu-toggle { display: none; flex-direction: column; gap: 5px; width: 44px; height: 44px; align-items: center; justify-content: center; border-radius: var(--radius-sm); background: #f1f5f9; cursor: pointer; }
.menu-toggle span { width: 20px; height: 2px; background: var(--text); border-radius: 2px; transition: all var(--transition); }
.menu-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.menu-toggle.open span:nth-child(2) { opacity: 0; }
.menu-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Hero */
.page-hero { position: relative; padding: 100px 0 120px; background: var(--bg-dark); background-image: url('/assets/images/backpic/back-1.png'); background-size: cover; background-position: center; color: #fff; overflow: hidden; }
.page-hero::before { content: ''; position: absolute; inset: 0; background: linear-gradient(135deg, rgba(15,23,42,0.92) 0%, rgba(15,23,42,0.75) 50%, rgba(217,119,6,0.35) 100%); }
.page-hero .container { position: relative; z-index: 1; }
.hero-breadcrumb { display: flex; align-items: center; gap: 8px; font-size: 14px; color: rgba(255,255,255,0.7); margin-bottom: 20px; }
.hero-breadcrumb a:hover { color: var(--primary-light); }
.hero-breadcrumb .dot { color: var(--primary-light); }
.hero-title { font-size: 46px; line-height: 1.2; font-weight: 800; letter-spacing: -0.5px; margin-bottom: 18px; max-width: 720px; }
.hero-title span { background: var(--gradient-gold); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.hero-desc { font-size: 17px; line-height: 1.8; color: rgba(255,255,255,0.85); max-width: 620px; margin-bottom: 36px; }
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }
.hero-badge { display: inline-flex; align-items: center; gap: 8px; background: rgba(255,255,255,0.12); border: 1px solid rgba(255,255,255,0.2); color: #fff; padding: 6px 16px; border-radius: var(--radius-pill); font-size: 13px; backdrop-filter: blur(8px); }
.hero-stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; margin-top: 60px; padding-top: 36px; border-top: 1px solid rgba(255,255,255,0.15); }
.hero-stat h3 { font-size: 32px; font-weight: 800; color: var(--primary-light); }
.hero-stat p { font-size: 14px; color: rgba(255,255,255,0.65); margin-top: 4px; }

/* Section base */
.section { padding: 90px 0; }
.section-alt { background: #fff; }
.section-dark { background: var(--bg-dark); color: #fff; }
.section-head { text-align: center; max-width: 720px; margin: 0 auto 56px; }
.section-tag { display: inline-flex; align-items: center; gap: 6px; background: rgba(217,119,6,0.1); color: var(--primary); font-size: 13px; font-weight: 600; padding: 6px 16px; border-radius: var(--radius-pill); margin-bottom: 16px; }
.section-title { font-size: 36px; font-weight: 800; letter-spacing: -0.3px; line-height: 1.25; margin-bottom: 14px; color: var(--text); }
.section-desc { font-size: 16px; color: var(--text-light); line-height: 1.7; }

/* Entry Cards */
.entry-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.entry-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 32px 28px; transition: all var(--transition); position: relative; overflow: hidden; }
.entry-card::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px; background: var(--gradient-gold); opacity: 0; transition: opacity var(--transition); }
.entry-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: rgba(217,119,6,0.3); }
.entry-card:hover::before { opacity: 1; }
.entry-icon { width: 56px; height: 56px; border-radius: 16px; background: linear-gradient(135deg, rgba(217,119,6,0.12), rgba(217,119,6,0.05)); display: flex; align-items: center; justify-content: center; margin-bottom: 20px; color: var(--primary); }
.entry-card h3 { font-size: 17px; font-weight: 700; margin-bottom: 10px; }
.entry-card p { font-size: 14px; color: var(--text-light); line-height: 1.65; }
.entry-card .entry-link { display: inline-flex; align-items: center; gap: 6px; font-size: 13px; font-weight: 600; color: var(--primary); margin-top: 16px; }
.entry-card .entry-link svg { width: 14px; height: 14px; transition: transform var(--transition); }
.entry-card .entry-link:hover svg { transform: translateX(4px); }

/* Steps */
.steps-wrap { display: grid; grid-template-columns: repeat(6, 1fr); gap: 20px; counter-reset: step; }
.step-item { position: relative; text-align: center; padding: 32px 16px 28px; background: rgba(255,255,255,0.06); border: 1px solid rgba(255,255,255,0.1); border-radius: var(--radius-lg); transition: all var(--transition); }
.step-item:hover { background: rgba(255,255,255,0.1); transform: translateY(-4px); }
.step-item::before { counter-increment: step; content: counter(step); position: absolute; top: 16px; left: 50%; transform: translateX(-50%); width: 32px; height: 32px; background: var(--gradient-gold); color: #fff; font-size: 14px; font-weight: 700; border-radius: 50%; display: flex; align-items: center; justify-content: center; }
.step-icon { width: 48px; height: 48px; margin: 0 auto 14px; display: flex; align-items: center; justify-content: center; color: var(--primary-light); background: rgba(217,119,6,0.15); border-radius: 14px; margin-top: 24px; }
.step-item h3 { font-size: 15px; font-weight: 600; color: #fff; margin-bottom: 8px; }
.step-item p { font-size: 13px; color: rgba(255,255,255,0.6); line-height: 1.6; }

/* Platform section */
.platform-wrap { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.platform-visual { position: relative; border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-lg); }
.platform-visual img { width: 100%; height: 380px; object-fit: cover; }
.platform-visual::after { content: ''; position: absolute; inset: 0; background: linear-gradient(to top, rgba(15,23,42,0.7), transparent 60%); }
.platform-info h2 { font-size: 32px; font-weight: 800; margin-bottom: 16px; }
.platform-info p { color: var(--text-light); font-size: 15px; line-height: 1.8; margin-bottom: 28px; }
.platform-list { display: grid; gap: 16px; }
.platform-list li { display: flex; align-items: flex-start; gap: 14px; background: #fff; border: 1px solid var(--border); border-radius: var(--radius-md); padding: 18px 20px; transition: all var(--transition); }
.platform-list li:hover { box-shadow: var(--shadow-md); border-color: rgba(217,119,6,0.25); }
.platform-list .p-icon { flex-shrink: 0; width: 40px; height: 40px; border-radius: 12px; background: rgba(217,119,6,0.1); color: var(--primary); display: flex; align-items: center; justify-content: center; }
.platform-list strong { display: block; font-size: 15px; margin-bottom: 4px; }
.platform-list span { font-size: 13px; color: var(--text-light); line-height: 1.5; }

/* FAQ */
.faq-wrap { max-width: 780px; margin: 0 auto; }
.faq-item { background: #fff; border: 1px solid var(--border); border-radius: var(--radius-md); margin-bottom: 14px; overflow: hidden; transition: all var(--transition); }
.faq-item:hover { border-color: rgba(217,119,6,0.25); box-shadow: var(--shadow-sm); }
.faq-question { padding: 20px 24px; display: flex; align-items: center; justify-content: space-between; cursor: pointer; font-weight: 600; font-size: 15px; list-style: none; }
.faq-question::-webkit-details-marker { display: none; }
.faq-question .faq-icon { width: 28px; height: 28px; border-radius: 50%; background: #f1f5f9; display: flex; align-items: center; justify-content: center; color: var(--text-light); transition: all var(--transition); flex-shrink: 0; }
.faq-item[open] .faq-question .faq-icon { transform: rotate(45deg); background: var(--primary); color: #fff; }
.faq-answer { padding: 0 24px 20px; font-size: 14px; color: var(--text-light); line-height: 1.75; border-top: 1px solid #f1f5f9; padding-top: 16px; }

/* CTA */
.cta-section { background: var(--bg-dark); background-image: url('/assets/images/backpic/back-2.png'); background-size: cover; background-position: center; position: relative; padding: 80px 0; }
.cta-section::before { content: ''; position: absolute; inset: 0; background: rgba(15,23,42,0.88); }
.cta-inner { position: relative; z-index: 1; text-align: center; max-width: 640px; margin: 0 auto; }
.cta-inner h2 { font-size: 34px; font-weight: 800; color: #fff; margin-bottom: 16px; }
.cta-inner p { color: rgba(255,255,255,0.75); font-size: 16px; line-height: 1.7; margin-bottom: 32px; }
.cta-actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
.btn-outline-light { background: transparent; border: 1.5px solid rgba(255,255,255,0.6); color: #fff; padding: 12px 30px; }
.btn-outline-light:hover { background: rgba(255,255,255,0.1); border-color: #fff; transform: translateY(-2px); }

/* Related */
.related-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.related-card { background: #fff; border: 1px solid var(--border); border-radius: var(--radius-lg); overflow: hidden; transition: all var(--transition); display: flex; flex-direction: column; }
.related-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.related-cover { position: relative; overflow: hidden; aspect-ratio: 16/9; }
.related-cover img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
.related-card:hover .related-cover img { transform: scale(1.05); }
.related-body { padding: 22px 24px 26px; flex: 1; display: flex; flex-direction: column; }
.related-tag { align-self: flex-start; font-size: 12px; font-weight: 600; background: rgba(217,119,6,0.1); color: var(--primary); padding: 4px 12px; border-radius: var(--radius-pill); margin-bottom: 12px; }
.related-body h3 { font-size: 16px; font-weight: 700; line-height: 1.5; margin-bottom: 10px; }
.related-body p { font-size: 14px; color: var(--text-light); line-height: 1.65; flex: 1; }
.related-meta { font-size: 13px; color: var(--text-light); margin-top: 14px; display: flex; align-items: center; gap: 8px; }

/* Footer */
.site-footer { background: #0f172a; color: rgba(255,255,255,0.7); padding: 70px 0 0; margin-top: 0; }
.footer-inner { display: flex; justify-content: space-between; gap: 60px; padding-bottom: 50px; border-bottom: 1px solid rgba(255,255,255,0.1); }
.footer-brand { max-width: 380px; }
.footer-brand .logo-text { font-size: 20px; font-weight: 700; color: #fff; display: block; margin-bottom: 14px; }
.footer-brand p { font-size: 14px; line-height: 1.75; }
.footer-links-group { display: flex; gap: 80px; }
.group-title { font-size: 15px; font-weight: 600; color: #fff; margin-bottom: 18px; }
.footer-links-group ul li { margin-bottom: 10px; }
.footer-links-group a { font-size: 14px; color: rgba(255,255,255,0.6); transition: all var(--transition); }
.footer-links-group a:hover { color: var(--primary-light); padding-left: 4px; }
.footer-bottom { padding: 24px 0; text-align: center; font-size: 13px; color: rgba(255,255,255,0.4); }

/* Responsive */
@media (max-width: 1024px) {
  .entry-grid { grid-template-columns: repeat(2, 1fr); }
  .steps-wrap { grid-template-columns: repeat(3, 1fr); }
  .related-grid { grid-template-columns: repeat(2, 1fr); }
  .plugin-section { padding: 70px 0; }
}
@media (max-width: 768px) {
  .nav-links { display: none; position: fixed; top: 72px; left: 0; right: 0; background: #fff; padding: 16px 24px 24px; box-shadow: 0 12px 30px rgba(0,0,0,0.1); flex-direction: column; align-items: stretch; gap: 8px; }
  .nav-links.open { display: flex; }
  .nav-links a { padding: 12px 16px; text-align: center; font-size: 15px; }
  .nav-search input { width: 140px; }
  .nav-search input:focus { width: 160px; }
  .nav-right .btn { display: none; }
  .menu-toggle { display: flex; }
  .page-hero { padding: 70px 0 90px; }
  .hero-title { font-size: 34px; }
  .hero-stats { grid-template-columns: repeat(2, 1fr); gap: 20px; margin-top: 40px; }
  .section { padding: 60px 0; }
  .section-title { font-size: 28px; }
  .platform-wrap { grid-template-columns: 1fr; gap: 40px; }
  .platform-visual img { height: 260px; }
  .footer-inner { flex-direction: column; gap: 40px; }
  .footer-links-group { gap: 40px; flex-wrap: wrap; }
  .cta-inner h2 { font-size: 28px; }
}
@media (max-width: 520px) {
  .container { padding: 0 16px; }
  .logo-text { font-size: 16px; }
  .nav-search { display: none; }
  .nav-right .btn { display: none; }
  .entry-grid, .related-grid { grid-template-columns: 1fr; }
  .steps-wrap { grid-template-columns: repeat(2, 1fr); gap: 12px; }
  .hero-title { font-size: 28px; }
  .hero-stats { grid-template-columns: 1fr 1fr; }
  .hero-actions .btn { width: 100%; }
  .platform-list li { padding: 16px; }
  .faq-question { padding: 16px 18px; font-size: 14px; }
  .faq-answer { padding: 0 18px 16px; }
  .related-body { padding: 18px; }
}

/* roulang page: article */
:root{
  --primary:#4f46e5;
  --primary-dark:#3730a3;
  --primary-light:#eef2ff;
  --accent:#f59e0b;
  --accent-dark:#b45309;
  --bg:#f5f7fb;
  --bg-white:#ffffff;
  --bg-dark:#0f172a;
  --text:#0f172a;
  --text-muted:#64748b;
  --border:#e2e8f0;
  --radius-sm:8px;
  --radius-md:14px;
  --radius-lg:24px;
  --shadow-xs:0 1px 2px rgba(15,23,42,.04);
  --shadow-sm:0 2px 8px rgba(15,23,42,.06);
  --shadow-md:0 8px 24px rgba(15,23,42,.09);
  --shadow-lg:0 16px 40px rgba(15,23,42,.14);
  --font-sans:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  --font-mono:"SF Mono","JetBrains Mono","Fira Code",Consolas,monospace;
  --container:1200px;
  --gutter:24px;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{font-family:var(--font-sans);font-size:16px;line-height:1.7;color:var(--text);background:var(--bg);-webkit-font-smoothing:antialiased;}
img{max-width:100%;height:auto;display:block;}
a{color:inherit;text-decoration:none;transition:color .2s ease;}
button{font-family:inherit;cursor:pointer;border:none;background:none;}
input{font-family:inherit;border:none;outline:none;}
ul,ol{list-style:none;}
.container{max-width:var(--container);margin:0 auto;padding:0 var(--gutter);}
.site-header{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.85);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border-bottom:1px solid rgba(226,232,240,.7);}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:72px;gap:24px;}
.nav-logo{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.logo-mark{display:flex;align-items:center;justify-content:center;width:38px;height:38px;border-radius:12px;background:linear-gradient(135deg,var(--primary),#7c3aed);color:#fff;font-weight:800;font-size:18px;box-shadow:0 4px 12px rgba(79,70,229,.35);}
.logo-text{font-weight:800;font-size:19px;letter-spacing:.5px;color:var(--text);white-space:nowrap;}
.nav-links{display:flex;align-items:center;gap:6px;flex:1;justify-content:center;}
.nav-links a{padding:8px 16px;border-radius:10px;font-size:14px;font-weight:600;color:var(--text-muted);transition:all .2s ease;white-space:nowrap;}
.nav-links a:hover{color:var(--primary);background:var(--primary-light);}
.nav-links a.active{color:var(--primary);background:var(--primary-light);}
.nav-right{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.nav-search{display:flex;align-items:center;gap:6px;background:var(--bg);border:1px solid var(--border);border-radius:999px;padding:6px 16px;height:42px;transition:border .2s,box-shadow .2s;}
.nav-search:focus-within{border-color:var(--primary);box-shadow:0 0 0 3px rgba(79,70,229,.15);}
.nav-search svg{color:var(--text-muted);flex-shrink:0;}
.nav-search input{background:transparent;border:none;outline:none;font-size:14px;color:var(--text);width:180px;}
.nav-search input::placeholder{color:#94a3b8;}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-weight:700;border-radius:12px;transition:all .22s ease;cursor:pointer;text-align:center;line-height:1.2;}
.btn-primary{background:linear-gradient(135deg,var(--primary),#6d28d9);color:#fff;box-shadow:0 4px 14px rgba(79,70,229,.35);}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 8px 20px rgba(79,70,229,.45);}
.btn-primary:active{transform:translateY(0);box-shadow:0 2px 8px rgba(79,70,229,.3);}
.btn-outline{background:transparent;border:2px solid rgba(255,255,255,.5);color:#fff;}
.btn-outline:hover{background:rgba(255,255,255,.15);border-color:#fff;transform:translateY(-2px);}
.btn-small{padding:9px 22px;font-size:14px;border-radius:999px;}
.btn-large{padding:16px 36px;font-size:16px;border-radius:999px;}
.menu-toggle{display:none;flex-direction:column;justify-content:center;gap:5px;width:42px;height:42px;border-radius:10px;background:var(--bg);border:1px solid var(--border);padding:10px;align-items:center;}
.menu-toggle span{display:block;width:18px;height:2px;background:var(--text);border-radius:2px;transition:all .3s ease;}
.menu-toggle.open span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.menu-toggle.open span:nth-child(2){opacity:0;}
.menu-toggle.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}
.page-banner{position:relative;background:url('/assets/images/backpic/back-1.png') center/cover no-repeat;padding:90px 0 70px;color:#fff;overflow:hidden;}
.page-banner::before{content:'';position:absolute;inset:0;background:linear-gradient(135deg,rgba(15,23,42,.88),rgba(79,70,229,.72));}
.page-banner .container{position:relative;z-index:2;}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:14px;color:rgba(255,255,255,.8);margin-bottom:22px;flex-wrap:wrap;}
.breadcrumb a{color:rgba(255,255,255,.75);transition:color .2s;}
.breadcrumb a:hover{color:#fff;}
.breadcrumb .sep{opacity:.5;}
.badge{display:inline-flex;align-items:center;gap:6px;padding:6px 16px;border-radius:999px;background:rgba(255,255,255,.18);border:1px solid rgba(255,255,255,.35);font-size:13px;font-weight:700;color:#fff;backdrop-filter:blur(6px);}
.article-head{max-width:880px;}
.article-head h1{font-size:40px;line-height:1.3;font-weight:800;margin:18px 0 20px;letter-spacing:.5px;text-shadow:0 2px 20px rgba(0,0,0,.3);}
.article-meta{display:flex;align-items:center;gap:24px;font-size:14px;color:rgba(255,255,255,.85);flex-wrap:wrap;}
.article-meta span{display:flex;align-items:center;gap:6px;}
.article-wrap{padding:60px 0 30px;}
.article-main{max-width:880px;margin:0 auto;}
.article-content{background:var(--bg-white);border-radius:var(--radius-lg);padding:48px 56px;box-shadow:var(--shadow-sm);border:1px solid var(--border);line-height:1.9;}
.article-content p{margin-bottom:1.4em;font-size:16px;color:#334155;}
.article-content h2{margin:2em 0 .8em;font-size:26px;font-weight:800;color:var(--text);line-height:1.4;}
.article-content h3{margin:1.8em 0 .6em;font-size:20px;font-weight:700;color:var(--text);line-height:1.4;}
.article-content h4{margin:1.5em 0 .5em;font-size:17px;font-weight:700;}
.article-content ul,.article-content ol{padding-left:1.6em;margin-bottom:1.4em;}
.article-content ul{list-style:disc;}
.article-content ol{list-style:decimal;}
.article-content li{margin-bottom:.5em;font-size:16px;color:#334155;}
.article-content blockquote{border-left:4px solid var(--primary);background:var(--primary-light);padding:18px 24px;border-radius:0 12px 12px 0;margin:1.6em 0;color:#1e1b4b;font-style:normal;}
.article-content blockquote p:last-child{margin-bottom:0;}
.article-content code{font-family:var(--font-mono);background:#f1f5f9;border:1px solid var(--border);padding:2px 8px;border-radius:6px;font-size:14px;color:#be185d;}
.article-content pre{background:#0f172a;color:#e2e8f0;padding:24px;border-radius:14px;overflow-x:auto;margin:1.6em 0;line-height:1.7;}
.article-content pre code{background:transparent;border:none;color:inherit;padding:0;font-size:14px;}
.article-content img{border-radius:16px;margin:1.6em 0;box-shadow:var(--shadow-md);}
.article-content table{width:100%;border-collapse:collapse;margin:1.6em 0;font-size:15px;}
.article-content table th{background:var(--primary-light);color:var(--text);font-weight:700;text-align:left;padding:14px 16px;border:1px solid var(--border);}
.article-content table td{padding:12px 16px;border:1px solid var(--border);color:#334155;}
.article-content a{color:var(--primary);border-bottom:1px solid transparent;}
.article-content a:hover{color:var(--primary-dark);border-bottom-color:var(--primary);}
.article-foot{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-top:40px;padding-top:28px;border-top:1px solid var(--border);flex-wrap:wrap;}
.article-tags{display:flex;align-items:center;gap:8px;flex-wrap:wrap;}
.article-tags .tag{display:inline-block;padding:6px 16px;background:var(--bg);border:1px solid var(--border);border-radius:999px;font-size:13px;font-weight:600;color:var(--text-muted);transition:all .2s;}
.article-tags .tag:hover{border-color:var(--primary);color:var(--primary);background:var(--primary-light);}
.share-btns{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--text-muted);}
.share-btn{display:inline-flex;align-items:center;justify-content:center;width:36px;height:36px;border-radius:10px;background:var(--bg);border:1px solid var(--border);color:var(--text-muted);font-size:13px;font-weight:700;transition:all .2s;}
.share-btn:hover{background:var(--primary);color:#fff;border-color:var(--primary);transform:translateY(-2px);}
.not-found{background:var(--bg-white);border-radius:var(--radius-lg);padding:80px 48px;text-align:center;box-shadow:var(--shadow-sm);border:1px solid var(--border);}
.not-found .nf-code{font-size:80px;font-weight:900;background:linear-gradient(135deg,var(--primary),#7c3aed);-webkit-background-clip:text;-webkit-text-fill-color:transparent;line-height:1.2;display:block;}
.not-found h1{font-size:28px;margin:16px 0 12px;font-weight:800;}
.not-found p{color:var(--text-muted);margin-bottom:28px;}
.section{padding:80px 0;}
.cat-section{background:var(--bg-white);border-top:1px solid var(--border);border-bottom:1px solid var(--border);}
.section-head{text-align:center;max-width:640px;margin:0 auto 48px;}
.section-head h2{font-size:32px;font-weight:800;letter-spacing:.5px;color:var(--text);margin-bottom:12px;}
.section-head p{font-size:15px;color:var(--text-muted);}
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:28px;}
.cat-card{display:flex;background:var(--bg-white);border:1px solid var(--border);border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-sm);transition:all .3s ease;}
.cat-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-md);border-color:rgba(79,70,229,.3);}
.cat-card img{width:160px;flex-shrink:0;object-fit:cover;}
.cat-body{padding:28px 24px;display:flex;flex-direction:column;gap:10px;justify-content:center;}
.cat-body h3{font-size:20px;font-weight:800;color:var(--text);}
.cat-body p{font-size:14px;color:var(--text-muted);line-height:1.6;}
.link-more{font-size:14px;font-weight:700;color:var(--primary);display:inline-flex;align-items:center;gap:4px;margin-top:6px;transition:gap .2s;}
.cat-card:hover .link-more{gap:8px;}
.cta-section{position:relative;background:url('/assets/images/backpic/back-2.png') center/cover no-repeat;padding:90px 0;color:#fff;overflow:hidden;}
.cta-section::before{content:'';position:absolute;inset:0;background:linear-gradient(120deg,rgba(15,23,42,.92),rgba(79,70,229,.8));}
.cta-section .container{position:relative;z-index:2;}
.cta-inner{max-width:720px;margin:0 auto;text-align:center;}
.cta-inner h2{font-size:36px;font-weight:800;line-height:1.3;margin-bottom:14px;}
.cta-inner p{font-size:16px;color:rgba(255,255,255,.85);margin-bottom:32px;}
.cta-btns{display:flex;justify-content:center;gap:16px;flex-wrap:wrap;}
.faq-section{background:var(--bg);}
.faq-list{max-width:800px;margin:0 auto;display:flex;flex-direction:column;gap:14px;}
.faq-item{background:var(--bg-white);border:1px solid var(--border);border-radius:var(--radius-md);overflow:hidden;box-shadow:var(--shadow-xs);transition:box-shadow .2s,transform .2s;}
.faq-item:hover{box-shadow:var(--shadow-sm);}
.faq-question{width:100%;padding:22px 28px;display:flex;justify-content:space-between;align-items:center;font-size:16px;font-weight:700;color:var(--text);text-align:left;gap:16px;transition:background .2s;}
.faq-question::after{content:'+';font-size:24px;font-weight:400;color:var(--primary);transition:transform .3s;flex-shrink:0;line-height:1;}
.faq-item.active .faq-question::after{content:'−';}
.faq-answer{max-height:0;overflow:hidden;transition:max-height .4s ease,opacity .3s ease;opacity:0;}
.faq-item.active .faq-answer{max-height:400px;opacity:1;}
.faq-answer p{padding:0 28px 22px;font-size:15px;color:var(--text-muted);line-height:1.8;}
.site-footer{background:var(--bg-dark);color:rgba(255,255,255,.75);padding:70px 0 0;}
.footer-inner{display:grid;grid-template-columns:1.4fr 1fr;gap:48px;padding-bottom:48px;border-bottom:1px solid rgba(255,255,255,.08);}
.footer-brand .logo-text{display:block;font-size:20px;font-weight:800;color:#fff;margin-bottom:16px;}
.footer-brand p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.65);max-width:360px;}
.footer-links-group{display:grid;grid-template-columns:1fr 1fr;gap:32px;}
.group-title{font-size:14px;font-weight:700;color:#fff;margin-bottom:16px;letter-spacing:.5px;}
.footer-links-group ul li{margin-bottom:10px;}
.footer-links-group ul li a{font-size:14px;color:rgba(255,255,255,.65);transition:color .2s,padding-left .2s;}
.footer-links-group ul li a:hover{color:#fff;padding-left:4px;}
.footer-bottom{padding:24px 0;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:8px;font-size:13px;color:rgba(255,255,255,.45);}
.footer-bottom a{color:rgba(255,255,255,.6);}
.footer-bottom a:hover{color:#fff;}
@media (max-width:1024px){
  .nav-links{display:none;position:absolute;top:72px;left:0;right:0;background:var(--bg-white);border-bottom:1px solid var(--border);box-shadow:var(--shadow-md);flex-direction:column;align-items:flex-start;padding:16px 24px;gap:6px;}
  .nav-links.open{display:flex;}
  .nav-links a{width:100%;padding:12px 16px;font-size:15px;}
  .menu-toggle{display:flex;}
  .nav-search{display:none;}
}
@media (max-width:768px){
  .container{padding:0 16px;}
  .page-banner{padding:64px 0 48px;}
  .article-head h1{font-size:28px;}
  .article-content{padding:28px 20px;border-radius:16px;}
  .article-content h2{font-size:22px;}
  .article-wrap{padding:40px 0 20px;}
  .grid-2{grid-template-columns:1fr;}
  .cat-card{flex-direction:column;}
  .cat-card img{width:100%;height:180px;}
  .section{padding:56px 0;}
  .section-head h2{font-size:26px;}
  .cta-inner h2{font-size:28px;}
  .cta-inner p{font-size:14px;}
  .btn-large{padding:14px 28px;font-size:15px;}
  .footer-inner{grid-template-columns:1fr;gap:32px;}
  .footer-links-group{grid-template-columns:1fr 1fr;}
  .article-foot{flex-direction:column;align-items:flex-start;}
  .nav-search{display:none;}
  .logo-text{font-size:16px;display:none;}
  .logo-mark{width:34px;height:34px;font-size:16px;}
  .nav-inner{gap:8px;}
}
@media (max-width:520px){
  .btn-small{display:none;}
  .footer-links-group{grid-template-columns:1fr;}
  .article-meta{gap:12px;font-size:13px;}
  .share-btns{width:100%;justify-content:flex-start;}
}

/* roulang page: category2 */
/* ============ 设计变量 ============ */
:root {
  --primary: #2f6bff;
  --primary-dark: #1e4fd8;
  --primary-light: #6b96ff;
  --accent: #06b6d4;
  --accent-light: #22d3ee;
  --dark: #0b1220;
  --dark-2: #101b2e;
  --dark-3: #16233a;
  --body-bg: #f6f9fc;
  --white: #ffffff;
  --text: #101828;
  --text-secondary: #475467;
  --text-muted: #98a2b3;
  --border: #e4e7ec;
  --border-light: #f0f2f6;
  --radius: 16px;
  --radius-sm: 10px;
  --shadow-sm: 0 1px 2px rgba(16, 24, 40, 0.04);
  --shadow-md: 0 4px 16px rgba(16, 24, 40, 0.06);
  --shadow-lg: 0 12px 32px rgba(16, 24, 40, 0.08);
  --transition: all 0.25s ease;
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: "Inter", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", -apple-system, sans-serif;
  font-size: 16px;
  line-height: 1.7;
  color: var(--text);
  background: var(--body-bg);
  -webkit-font-smoothing: antialiased;
}

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

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

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

ul,
ol {
  list-style: none;
}

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

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

/* ============ 容器 ============ */
.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding-left: 24px;
  padding-right: 24px;
}

/* ============ 按钮 ============ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: 10px;
  font-weight: 600;
  font-size: 15px;
  line-height: 1.5;
  transition: var(--transition);
  white-space: nowrap;
  border: 1px solid transparent;
}

.btn:focus-visible {
  outline: 3px solid rgba(47, 107, 255, 0.3);
  outline-offset: 2px;
}

.btn-primary {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 4px 12px rgba(47, 107, 255, 0.25);
}

.btn-primary:hover {
  background: var(--primary-dark);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 8px 20px rgba(47, 107, 255, 0.28);
}

.btn-primary:active {
  transform: translateY(0);
  box-shadow: 0 2px 8px rgba(47, 107, 255, 0.2);
}

.btn-ghost {
  background: transparent;
  color: #dbeafe;
  border-color: rgba(255, 255, 255, 0.35);
}

.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
  border-color: rgba(255, 255, 255, 0.7);
}

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

.btn-outline:hover {
  border-color: var(--primary);
  background: #f5f9ff;
  transform: translateY(-1px);
  box-shadow: var(--shadow-sm);
}

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

.btn-light:hover {
  background: #eef6ff;
  transform: translateY(-1px);
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.15);
}

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

.btn-outline-light:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: #fff;
  color: #fff;
}

.btn-lg {
  padding: 14px 32px;
  font-size: 16px;
  border-radius: 12px;
}

.btn-small {
  padding: 8px 16px;
  font-size: 13px;
  border-radius: 8px;
}

/* ============ 页头导航 ============ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.82);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(228, 231, 236, 0.7);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  gap: 20px;
}

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

.logo-mark {
  width: 38px;
  height: 38px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
  color: #fff;
  font-size: 19px;
  font-weight: 800;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 12px rgba(47, 107, 255, 0.3);
}

.logo-text {
  font-size: 18px;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.01em;
  line-height: 1.2;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
  flex: 1;
  justify-content: center;
}

.nav-links a {
  font-size: 15px;
  font-weight: 500;
  color: var(--text-secondary);
  position: relative;
  padding: 6px 2px;
  transition: var(--transition);
}

.nav-links a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 2px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  transform: scaleX(0);
  transform-origin: center;
  transition: transform 0.28s ease;
}

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

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

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

.nav-right {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-shrink: 0;
}

.nav-search {
  display: flex;
  align-items: center;
  gap: 8px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 8px 14px;
  width: 200px;
  transition: var(--transition);
}

.nav-search:focus-within {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(47, 107, 255, 0.15);
}

.nav-search svg,
.nav-search i {
  color: var(--text-muted);
  font-size: 14px;
  flex-shrink: 0;
}

.nav-search input {
  border: none;
  background: transparent;
  font-size: 13px;
  width: 100%;
  color: var(--text);
}

.nav-search input::placeholder {
  color: var(--text-muted);
}

.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 40px;
  height: 40px;
  padding: 10px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: #fff;
  align-items: center;
  justify-content: center;
}

.menu-toggle span {
  width: 18px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: var(--transition);
}

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

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

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

/* ============ Hero ============ */
.category-hero {
  position: relative;
  min-height: 520px;
  display: flex;
  align-items: center;
  padding: 80px 0 70px;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  background-color: var(--dark);
  opacity: 0.92;
}

.hero-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(11, 18, 32, 0.94) 0%, rgba(11, 18, 32, 0.78) 50%, rgba(11, 18, 32, 0.6) 100%);
}

.hero-content-wide {
  position: relative;
  z-index: 2;
  max-width: 760px;
  margin-left: 0;
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.2);
  padding: 6px 14px;
  border-radius: 40px;
  color: #c9e1ff;
  font-size: 13px;
  font-weight: 500;
  margin-bottom: 24px;
  backdrop-filter: blur(8px);
}

.eyebrow-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent-light);
  box-shadow: 0 0 10px var(--accent-light);
}

.category-hero h1 {
  font-size: 42px;
  line-height: 1.2;
  font-weight: 800;
  color: #fff;
  letter-spacing: -0.02em;
  margin-bottom: 20px;
}

.hero-desc {
  font-size: 17px;
  line-height: 1.75;
  color: rgba(226, 235, 255, 0.85);
  max-width: 620px;
  margin-bottom: 32px;
}

.hero-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 40px;
}

.hero-stats-mini {
  display: flex;
  gap: 0;
  flex-wrap: wrap;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.06);
  backdrop-filter: blur(10px);
  padding: 16px 0;
  width: fit-content;
}

.stat-mini {
  padding: 6px 30px;
  border-right: 1px solid rgba(255, 255, 255, 0.12);
  text-align: center;
}

.stat-mini:last-child {
  border-right: none;
}

.stat-mini strong {
  display: block;
  font-size: 22px;
  color: #fff;
  font-weight: 700;
  line-height: 1.3;
}

.stat-mini span {
  font-size: 12px;
  color: rgba(226, 235, 255, 0.7);
}

/* ============ Section 通用 ============ */
.section {
  padding: 88px 0;
}

.section-header {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 52px;
}

.section-tag {
  display: inline-block;
  background: #eef5ff;
  color: var(--primary);
  font-size: 13px;
  font-weight: 600;
  padding: 5px 14px;
  border-radius: 40px;
  margin-bottom: 16px;
  letter-spacing: 0.02em;
}

.section-header h2 {
  font-size: 32px;
  font-weight: 800;
  color: var(--text);
  line-height: 1.25;
  letter-spacing: -0.015em;
  margin-bottom: 14px;
}

.section-header p {
  font-size: 16px;
  color: var(--text-secondary);
  line-height: 1.7;
}

.section-header.split {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  text-align: left;
  max-width: none;
}

.section-header.split h2 {
  margin-bottom: 6px;
}

/* ============ 卡片通用 ============ */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: #f0f4ff;
  color: var(--primary);
  font-size: 12px;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: 30px;
  line-height: 1.5;
}

.badge-accent {
  background: #e6fbff;
  color: #0e7490;
}

/* ============ 能力服务 ============ */
.service-section {
  background: var(--white);
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.service-card {
  background: #fff;
  border: 1px solid var(--border-light);
  border-radius: var(--radius);
  padding: 30px 24px;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  opacity: 0;
  transition: var(--transition);
}

.service-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: #dbe6ff;
}

.service-card:hover::before {
  opacity: 1;
}

.service-icon {
  width: 52px;
  height: 52px;
  border-radius: 13px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  margin-bottom: 20px;
  background: linear-gradient(135deg, #eef5ff, #e6fdff);
  color: var(--primary);
}

.service-card h3 {
  font-size: 17px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 10px;
  line-height: 1.4;
}

.service-card p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 0;
}

/* ============ 流程 ============ */
.flow-section {
  background: var(--dark);
  position: relative;
  overflow: hidden;
}

.flow-section::before {
  content: "";
  position: absolute;
  top: -120px;
  right: -80px;
  width: 420px;
  height: 420px;
  background: radial-gradient(circle, rgba(47, 107, 255, 0.2) 0%, transparent 70%);
  pointer-events: none;
}

.flow-section .section-tag {
  background: rgba(255, 255, 255, 0.1);
  color: #9dbaff;
}

.flow-section .section-header h2 {
  color: #fff;
}

.flow-section .section-header p {
  color: rgba(226, 235, 255, 0.75);
}

.flow-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  position: relative;
  z-index: 2;
}

.flow-item {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius);
  padding: 30px 26px;
  backdrop-filter: blur(8px);
  transition: var(--transition);
}

.flow-item:hover {
  background: rgba(255, 255, 255, 0.09);
  border-color: rgba(255, 255, 255, 0.25);
  transform: translateY(-4px);
}

.flow-num {
  font-size: 30px;
  font-weight: 800;
  color: transparent;
  -webkit-text-stroke: 1.5px rgba(180, 210, 255, 0.6);
  margin-bottom: 18px;
  line-height: 1;
  letter-spacing: 0.02em;
}

.flow-item h3 {
  color: #fff;
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 10px;
}

.flow-item p {
  color: rgba(226, 235, 255, 0.7);
  font-size: 14px;
  line-height: 1.7;
}

/* ============ 数据 ============ */
.stats-band {
  background: linear-gradient(120deg, var(--primary) 0%, #2456d8 100%);
  padding: 56px 0;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 40px;
}

.stat-item {
  text-align: center;
  padding: 12px;
  border-right: 1px solid rgba(255, 255, 255, 0.2);
}

.stat-item:last-child {
  border-right: none;
}

.stat-number {
  display: block;
  font-size: 38px;
  font-weight: 800;
  color: #fff;
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin-bottom: 8px;
}

.stat-label {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.85);
  font-weight: 500;
}

/* ============ 公告 ============ */
.news-section {
  background: var(--white);
}

.news-layout {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 32px;
  align-items: start;
}

.news-cards {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.news-card {
  background: #fff;
  border: 1px solid var(--border-light);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  display: flex;
}

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

.news-card img {
  width: 220px;
  height: auto;
  object-fit: cover;
  flex-shrink: 0;
}

.news-card-body {
  padding: 24px 26px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.news-card-body .badge {
  margin-bottom: 10px;
}

.news-card-body h3 {
  font-size: 16px;
  font-weight: 700;
  color: var(--text);
  line-height: 1.45;
  margin-bottom: 8px;
}

.news-card-body p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.65;
  margin-bottom: 14px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.news-link {
  font-size: 14px;
  font-weight: 600;
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: auto;
}

.news-link:hover {
  gap: 10px;
  color: var(--primary-dark);
}

.news-list-panel {
  background: #f9fbfe;
  border: 1px solid var(--border-light);
  border-radius: var(--radius);
  padding: 28px 26px;
  box-shadow: var(--shadow-sm);
}

.list-panel-title {
  font-size: 17px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 18px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.list-panel-title i {
  color: var(--primary);
}

.news-vertical-list li {
  padding: 14px 0;
  border-bottom: 1px solid var(--border-light);
  display: flex;
  align-items: center;
  gap: 12px;
}

.news-vertical-list li:last-child {
  border-bottom: none;
  padding-bottom: 4px;
}

.date-badge {
  font-size: 12px;
  color: var(--primary);
  background: #eef5ff;
  padding: 3px 9px;
  border-radius: 6px;
  white-space: nowrap;
  font-weight: 600;
}

.news-vertical-list li a {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.5;
  font-weight: 500;
}

.news-vertical-list li a:hover {
  color: var(--primary);
}

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

.faq-container {
  max-width: 860px;
}

.faq-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.faq-item {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 14px;
  overflow: hidden;
  transition: var(--transition);
}

.faq-item.active {
  border-color: #cfddff;
  box-shadow: 0 4px 16px rgba(47, 107, 255, 0.08);
}

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 19px 22px;
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
  text-align: left;
  transition: var(--transition);
}

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

.faq-question i {
  font-size: 14px;
  color: var(--text-muted);
  transition: var(--transition);
  flex-shrink: 0;
}

.faq-item.active .faq-question i {
  transform: rotate(180deg);
  color: var(--primary);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease;
  padding: 0 22px;
}

.faq-item.active .faq-answer {
  max-height: 240px;
  padding: 0 22px 20px;
}

.faq-answer p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.75;
  border-left: 3px solid var(--primary);
  padding-left: 14px;
  margin-top: 4px;
}

/* ============ CTA ============ */
.cta-section {
  padding: 70px 0 80px;
  background: var(--white);
}

.cta-inner {
  position: relative;
  background-size: cover;
  background-position: center;
  background-color: var(--dark-2);
  border-radius: 22px;
  padding: 62px 50px;
  text-align: center;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.cta-inner::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, rgba(11, 18, 32, 0.92) 0%, rgba(30, 64, 175, 0.85) 100%);
}

.cta-inner h2 {
  position: relative;
  z-index: 2;
  font-size: 28px;
  color: #fff;
  font-weight: 800;
  margin-bottom: 14px;
  line-height: 1.3;
  letter-spacing: -0.01em;
}

.cta-inner p {
  position: relative;
  z-index: 2;
  font-size: 15px;
  color: rgba(226, 235, 255, 0.85);
  max-width: 620px;
  margin: 0 auto 28px;
  line-height: 1.75;
}

.cta-actions {
  position: relative;
  z-index: 2;
  display: flex;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ============ 页脚 ============ */
.site-footer {
  background: var(--dark);
  padding-top: 70px;
}

.footer-inner {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 60px;
  padding-bottom: 50px;
}

.footer-brand .logo-text {
  color: #fff;
  font-size: 19px;
  display: block;
  margin-bottom: 16px;
}

.footer-brand p {
  color: rgba(200, 215, 245, 0.7);
  font-size: 14px;
  line-height: 1.7;
  max-width: 360px;
}

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

.group-title {
  color: #fff;
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 18px;
  letter-spacing: 0.02em;
}

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

.footer-links-group ul li a {
  color: rgba(200, 215, 245, 0.65);
  font-size: 14px;
  transition: var(--transition);
}

.footer-links-group ul li a:hover {
  color: #fff;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 22px 0;
}

.footer-bottom p {
  font-size: 13px;
  color: rgba(200, 215, 245, 0.5);
  text-align: center;
  letter-spacing: 0.01em;
}

/* ============ 响应式断点 ============ */
@media (max-width: 1024px) {
  .service-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

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

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 32px 20px;
  }

  .stat-item {
    border-right: none;
  }

  .nav-search {
    display: none;
  }
}

@media (max-width: 768px) {
  .nav-inner {
    height: 66px;
  }

  .menu-toggle {
    display: flex;
  }

  .nav-links {
    position: absolute;
    top: 66px;
    left: 0;
    right: 0;
    background: #fff;
    flex-direction: column;
    align-items: flex-start;
    padding: 16px 24px 24px;
    gap: 16px;
    box-shadow: 0 12px 28px rgba(11, 18, 32, 0.1);
    border-bottom: 1px solid var(--border-light);
    transform: translateY(-16px);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
  }

  .nav-links.open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  .nav-links a {
    font-size: 16px;
    padding: 6px 0;
  }

  .nav-right .btn.btn-primary {
    padding: 9px 16px;
    font-size: 13px;
  }

  .category-hero {
    min-height: auto;
    padding: 64px 0 58px;
  }

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

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

  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .hero-actions .btn {
    justify-content: center;
  }

  .hero-stats-mini {
    width: 100%;
    justify-content: space-between;
  }

  .stat-mini {
    padding: 6px 14px;
    flex: 1;
  }

  .section {
    padding: 68px 0;
  }

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

  .section-header h2 {
    font-size: 26px;
  }

  .section-header.split {
    flex-direction: column;
    align-items: flex-start;
    gap: 18px;
  }

  .stats-band {
    padding: 46px 0;
  }

  .cta-inner {
    padding: 46px 26px;
  }

  .cta-inner h2 {
    font-size: 22px;
  }

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

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

@media (max-width: 520px) {
  .container {
    padding-left: 18px;
    padding-right: 18px;
  }

  .nav-right .btn.btn-primary {
    padding: 8px 14px;
    font-size: 13px;
  }

  .logo-text {
    font-size: 16px;
  }

  .category-hero h1 {
    font-size: 25px;
  }

  .hero-desc {
    font-size: 14px;
  }

  .hero-stats-mini {
    flex-wrap: wrap;
    gap: 8px 0;
  }

  .stat-mini {
    min-width: 33.33%;
    border-right: 1px solid rgba(255, 255, 255, 0.1);
  }

  .stat-mini:nth-child(3) {
    border-right: none;
  }

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

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

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

  .news-card {
    flex-direction: column;
  }

  .news-card img {
    width: 100%;
    height: 180px;
  }

  .stat-number {
    font-size: 30px;
  }

  .footer-links-group {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .cta-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .cta-actions .btn {
    justify-content: center;
  }
}