/* roulang page: index */
:root {
    --color-primary: #0b1b3f;
    --color-primary-light: #122a5c;
    --color-accent: #e4b84d;
    --color-accent-dark: #c9a038;
    --color-mist: #f4f7fc;
    --color-text: #0f172a;
    --color-muted: #6b7a99;
    --color-border: #dce3f0;
    --radius-md: 16px;
    --radius-lg: 24px;
    --shadow-sm: 0 4px 16px rgba(11,27,63,.06);
    --shadow-md: 0 12px 32px rgba(11,27,63,.10);
    --shadow-lg: 0 24px 60px rgba(11,27,63,.14);
    --spacing-section: 120px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    font-family: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
    background: #fff;
    color: var(--color-text);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 32px;
}

a {
    text-decoration: none;
    color: inherit;
    transition: all .3s ease;
}

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

button, input {
    font-family: inherit;
}

.section {
    padding-top: var(--spacing-section);
    padding-bottom: var(--spacing-section);
}

.section-label {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-size: 14px;
    font-weight: 600;
    letter-spacing: .12em;
    text-transform: uppercase;
    color: var(--color-accent);
    margin-bottom: 16px;
}

.section-label::before {
    content: '';
    display: inline-block;
    width: 28px;
    height: 2px;
    background: var(--color-accent);
    border-radius: 2px;
}

.section-title {
    font-size: clamp(30px, 4vw, 44px);
    font-weight: 800;
    line-height: 1.2;
    margin: 0 0 18px;
    color: var(--color-primary);
    letter-spacing: .02em;
}

.section-desc {
    font-size: 16px;
    color: var(--color-muted);
    max-width: 680px;
    line-height: 1.8;
    margin: 0 0 48px;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-weight: 600;
    font-size: 15px;
    padding: 14px 30px;
    border-radius: 50px;
    border: 2px solid transparent;
    cursor: pointer;
    transition: all .3s ease;
    line-height: 1.4;
}

.btn-primary {
    background: var(--color-accent);
    color: var(--color-primary);
    border-color: var(--color-accent);
    box-shadow: 0 8px 24px rgba(228,184,77,.30);
}

.btn-primary:hover {
    background: var(--color-accent-dark);
    border-color: var(--color-accent-dark);
    transform: translateY(-2px);
    box-shadow: 0 12px 30px rgba(228,184,77,.40);
}

.btn-outline {
    background: transparent;
    color: #fff;
    border-color: rgba(255,255,255,.65);
}

.btn-outline:hover {
    background: rgba(255,255,255,.12);
    border-color: #fff;
    transform: translateY(-2px);
}

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

.btn-outline-dark:hover {
    border-color: var(--color-accent);
    color: var(--color-primary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-sm);
}

.pill {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 13px;
    font-weight: 500;
    padding: 5px 14px;
    border-radius: 30px;
    background: rgba(228,184,77,.12);
    color: #7a6216;
    border: 1px solid rgba(228,184,77,.25);
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(255,255,255,.96);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(220,227,240,.7);
    box-shadow: 0 4px 20px rgba(11,27,63,.04);
}

.site-header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 74px;
}

.logo-text {
    font-size: 23px;
    font-weight: 800;
    letter-spacing: .02em;
    color: var(--color-primary);
    background: linear-gradient(120deg, var(--color-primary) 0%, var(--color-primary) 60%, var(--color-accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    white-space: nowrap;
}

.logo-text .logo-dot {
    color: var(--color-accent);
    -webkit-text-fill-color: var(--color-accent);
}

.main-nav {
    display: flex;
    align-items: center;
    gap: 34px;
}

.nav-link {
    font-size: 15px;
    font-weight: 500;
    color: #334155;
    position: relative;
    padding: 8px 0;
    letter-spacing: .01em;
}

.nav-link::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 0;
    height: 2px;
    background: var(--color-accent);
    border-radius: 2px;
    transition: width .3s ease;
}

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

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

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

.nav-cta {
    display: flex;
    align-items: center;
    gap: 18px;
}

.btn-nav {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--color-primary);
    color: #fff;
    font-size: 14px;
    font-weight: 600;
    padding: 11px 24px;
    border-radius: 40px;
    transition: all .3s ease;
    border: 2px solid var(--color-primary);
}

.btn-nav:hover {
    background: var(--color-accent);
    border-color: var(--color-accent);
    color: var(--color-primary);
    transform: translateY(-2px);
    box-shadow: 0 10px 24px rgba(11,27,63,.16);
}

.menu-toggle {
    display: none;
    background: none;
    border: 1px solid var(--color-border);
    border-radius: 10px;
    width: 42px;
    height: 42px;
    font-size: 18px;
    color: var(--color-primary);
    cursor: pointer;
    align-items: center;
    justify-content: center;
    transition: all .3s ease;
}

.menu-toggle:hover {
    background: var(--color-mist);
}

@media (max-width: 1024px) {
    .main-nav {
        position: fixed;
        top: 74px;
        left: 0;
        right: 0;
        background: rgba(255,255,255,.98);
        flex-direction: column;
        gap: 0;
        padding: 20px 32px 28px;
        margin: 0;
        border-bottom: 1px solid var(--color-border);
        box-shadow: 0 20px 40px rgba(11,27,63,.08);
        transform: translateX(100%);
        transition: transform .35s ease;
        align-items: flex-start;
    }

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

    .nav-link {
        width: 100%;
        padding: 14px 0;
        font-size: 16px;
        border-bottom: 1px solid rgba(220,227,240,.5);
    }

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

    .nav-link.active {
        color: var(--color-accent);
        font-weight: 700;
    }

    .nav-cta .btn-nav {
        display: none;
    }

    .menu-toggle {
        display: flex;
    }
}

.hero {
    position: relative;
    background: linear-gradient(135deg, rgba(11,27,63,.92) 0%, rgba(11,27,63,.78) 50%, rgba(18,42,92,.68) 100%), url('/assets/images/backpic/back-1.png') center/cover no-repeat;
    isolation: isolate;
    overflow: hidden;
}

.hero::after {
    content: '';
    position: absolute;
    top: -80px;
    right: -80px;
    width: 420px;
    height: 420px;
    background: radial-gradient(circle, rgba(228,184,77,.18) 0%, transparent 70%);
    z-index: 1;
    pointer-events: none;
}

.hero-inner {
    padding: 150px 0 130px;
    position: relative;
    z-index: 2;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: rgba(228,184,77,.12);
    border: 1px solid rgba(228,184,77,.35);
    color: #f3d38a;
    font-size: 14px;
    font-weight: 500;
    padding: 8px 22px;
    border-radius: 40px;
    margin-bottom: 30px;
    letter-spacing: .05em;
}

.hero-badge i {
    color: var(--color-accent);
}

.hero h1 {
    font-size: clamp(38px, 6vw, 64px);
    font-weight: 800;
    color: #fff;
    line-height: 1.15;
    margin: 0 0 14px;
    letter-spacing: .02em;
}

.hero h1 span {
    background: linear-gradient(120deg, var(--color-accent) 0%, #f3d38a 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-sub {
    font-size: clamp(16px, 2vw, 19px);
    color: rgba(255,255,255,.82);
    max-width: 620px;
    line-height: 1.75;
    margin: 0 0 46px;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    margin-bottom: 64px;
}

.hero-stats {
    display: flex;
    flex-wrap: wrap;
    gap: 36px;
    padding-top: 20px;
    border-top: 1px solid rgba(255,255,255,.14);
}

.hero-stat .num {
    font-size: 30px;
    font-weight: 800;
    color: var(--color-accent);
    line-height: 1;
    margin-bottom: 4px;
}

.hero-stat .label {
    font-size: 13px;
    color: rgba(255,255,255,.65);
    letter-spacing: .04em;
}

@media (max-width: 768px) {
    .container {
        padding: 0 20px;
    }

    .section {
        padding-top: 80px;
        padding-bottom: 80px;
    }

    .hero-inner {
        padding: 96px 0 80px;
    }

    .hero-actions {
        margin-bottom: 44px;
        gap: 12px;
    }

    .hero-stats {
        gap: 26px;
    }

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

.feature-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.feature-card {
    background: #fff;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 40px 32px;
    text-align: center;
    position: relative;
    overflow: hidden;
    transition: all .35s ease;
    box-shadow: var(--shadow-sm);
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: var(--color-accent);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform .4s ease;
}

.feature-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-md);
    border-color: rgba(228,184,77,.4);
}

.feature-card:hover::before {
    transform: scaleX(1);
}

.feature-icon {
    width: 68px;
    height: 68px;
    border-radius: 18px;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
    color: var(--color-accent);
    font-size: 26px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 24px;
    box-shadow: 0 8px 20px rgba(11,27,63,.2);
}

.feature-card h3 {
    font-size: 19px;
    font-weight: 700;
    color: var(--color-primary);
    margin: 0 0 12px;
}

.feature-card p {
    font-size: 14px;
    color: var(--color-muted);
    line-height: 1.75;
    margin: 0;
}

@media (max-width: 768px) {
    .feature-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
}

.cat-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 36px;
}

.cat-card {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    background: #fff;
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-sm);
    transition: all .35s ease;
    display: flex;
    flex-direction: column;
}

.cat-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(228,184,77,.35);
}

.cat-card-img {
    height: 220px;
    overflow: hidden;
    position: relative;
}

.cat-card-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform .5s ease;
}

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

.cat-card-img::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent 40%, rgba(11,27,63,.45) 100%);
}

.cat-card-body {
    padding: 32px 32px 36px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.cat-card-body h3 {
    font-size: 23px;
    font-weight: 700;
    color: var(--color-primary);
    margin: 0 0 12px;
}

.cat-card-body p {
    font-size: 14px;
    color: var(--color-muted);
    line-height: 1.8;
    margin: 0 0 24px;
    flex: 1;
}

.cat-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 15px;
    font-weight: 600;
    color: var(--color-primary);
    transition: all .3s ease;
}

.cat-link i {
    transition: transform .3s ease;
    color: var(--color-accent);
}

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

.cat-link:hover i {
    transform: translateX(6px);
}

@media (max-width: 768px) {
    .cat-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .cat-card-img {
        height: 180px;
    }
}

.stats-band {
    background: var(--color-primary);
    position: relative;
    overflow: hidden;
}

.stats-band::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('/assets/images/backpic/back-2.png') center/cover no-repeat;
    opacity: .08;
}

.stats-band .container {
    position: relative;
    z-index: 2;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 28px;
    padding: 64px 0;
}

.stat-box {
    text-align: center;
    padding: 20px;
    border-radius: var(--radius-md);
    background: rgba(255,255,255,.04);
    border: 1px solid rgba(255,255,255,.08);
}

.stat-box .big-num {
    font-size: clamp(34px, 4vw, 48px);
    font-weight: 800;
    color: var(--color-accent);
    line-height: 1;
    margin-bottom: 10px;
    display: block;
}

.stat-box .stat-label {
    font-size: 14px;
    color: rgba(255,255,255,.7);
    letter-spacing: .08em;
}

@media (max-width: 768px) {
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
        padding: 40px 0;
    }
}

.news-section {
    background: var(--color-mist);
}

.news-section .section-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    gap: 24px;
    margin-bottom: 44px;
    flex-wrap: wrap;
}

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

.news-card {
    display: flex;
    flex-direction: column;
    background: #fff;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 28px 28px 24px;
    text-decoration: none;
    transition: all .3s ease;
    box-shadow: var(--shadow-sm);
}

.news-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: rgba(228,184,77,.35);
}

.news-card-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 14px;
}

.news-badge {
    display: inline-block;
    font-size: 12px;
    font-weight: 600;
    color: var(--color-primary);
    background: rgba(228,184,77,.15);
    border: 1px solid rgba(228,184,77,.25);
    padding: 4px 12px;
    border-radius: 30px;
    letter-spacing: .04em;
}

.news-date {
    font-size: 12px;
    color: var(--color-muted);
}

.news-title {
    font-size: 17px;
    font-weight: 700;
    color: var(--color-primary);
    line-height: 1.5;
    margin: 0 0 10px;
    transition: color .3s ease;
}

.news-card:hover .news-title {
    color: var(--color-accent-dark);
}

.news-desc {
    font-size: 14px;
    color: var(--color-muted);
    line-height: 1.7;
    margin: 0 0 18px;
    flex: 1;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.news-more {
    font-size: 14px;
    font-weight: 600;
    color: var(--color-primary);
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: all .3s ease;
}

.news-more i {
    font-size: 12px;
    transition: transform .3s ease;
}

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

.empty-tip {
    grid-column: 1 / -1;
    text-align: center;
    padding: 48px 24px;
    background: #fff;
    border: 1px dashed var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-muted);
    font-size: 15px;
}

@media (max-width: 768px) {
    .news-list {
        grid-template-columns: 1fr;
        gap: 16px;
    }
}

.steps-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 28px;
    counter-reset: step;
}

.step-card {
    position: relative;
    background: #fff;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 36px 28px 30px;
    transition: all .3s ease;
}

.step-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.step-num {
    position: relative;
    font-size: 42px;
    font-weight: 800;
    color: transparent;
    -webkit-text-stroke: 2px var(--color-accent);
    line-height: 1;
    margin-bottom: 20px;
    display: block;
}

.step-card h3 {
    font-size: 18px;
    font-weight: 700;
    color: var(--color-primary);
    margin: 0 0 12px;
}

.step-card p {
    font-size: 14px;
    color: var(--color-muted);
    line-height: 1.75;
    margin: 0;
}

@media (max-width: 768px) {
    .steps-grid {
        grid-template-columns: 1fr;
        gap: 18px;
    }

    .step-num {
        font-size: 34px;
    }
}

.faq-wrap {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 28px;
}

.faq-item {
    background: #fff;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 30px 32px;
    transition: all .3s ease;
}

.faq-item:hover {
    box-shadow: var(--shadow-md);
    border-color: rgba(228,184,77,.3);
}

.faq-q {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    font-size: 16px;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 10px;
}

.faq-q i {
    color: var(--color-accent);
    margin-top: 4px;
    font-size: 15px;
}

.faq-a {
    font-size: 14px;
    color: var(--color-muted);
    line-height: 1.8;
    padding-left: 27px;
    margin: 0;
}

@media (max-width: 768px) {
    .faq-wrap {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .faq-item {
        padding: 24px;
    }
}

.cta-band {
    position: relative;
    background: linear-gradient(135deg, rgba(11,27,63,.95) 0%, rgba(18,42,92,.85) 100%), url('/assets/images/backpic/back-3.png') center/cover no-repeat;
    padding: 90px 0;
    text-align: center;
}

.cta-band .cta-content {
    position: relative;
    z-index: 2;
}

.cta-band h2 {
    color: #fff;
    font-size: clamp(28px, 4vw, 40px);
    font-weight: 800;
    margin: 0 0 18px;
}

.cta-band p {
    color: rgba(255,255,255,.78);
    font-size: 16px;
    max-width: 560px;
    margin: 0 auto 40px;
    line-height: 1.8;
}

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

.site-footer {
    background: #081226;
    padding: 70px 0 0;
    color: rgba(255,255,255,.7);
}

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

.footer-logo {
    font-size: 22px;
    font-weight: 800;
    color: #fff;
    margin-bottom: 16px;
}

.footer-desc {
    font-size: 14px;
    line-height: 1.8;
    color: rgba(255,255,255,.6);
    max-width: 360px;
    margin-bottom: 24px;
}

.footer-social {
    display: flex;
    gap: 12px;
}

.footer-social a {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    background: rgba(255,255,255,.06);
    border: 1px solid rgba(255,255,255,.12);
    display: flex;
    align-items: center;
    justify-content: center;
    color: rgba(255,255,255,.65);
    font-size: 15px;
    transition: all .3s ease;
}

.footer-social a:hover {
    background: var(--color-accent);
    color: var(--color-primary);
    border-color: var(--color-accent);
    transform: translateY(-3px);
}

.footer-heading {
    font-size: 16px;
    font-weight: 700;
    color: #fff;
    margin: 0 0 20px;
    letter-spacing: .03em;
}

.footer-links {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-links a {
    font-size: 14px;
    color: rgba(255,255,255,.58);
    transition: all .3s ease;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.footer-links a:hover {
    color: var(--color-accent);
    transform: translateX(4px);
}

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,.08);
    padding: 24px 0;
    font-size: 13px;
    color: rgba(255,255,255,.4);
}

.footer-bottom .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
}

@media (max-width: 768px) {
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 34px;
    }

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

:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
}

.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 46px;
    height: 46px;
    border-radius: 50%;
    background: var(--color-primary);
    color: #fff;
    border: 2px solid var(--color-accent);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    opacity: 0;
    visibility: hidden;
    transition: all .3s ease;
    z-index: 99;
    cursor: pointer;
}

.back-to-top.show {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    background: var(--color-accent);
    color: var(--color-primary);
    transform: translateY(-4px);
}

/* roulang page: category1 */
:root {
            --color-primary: #1a66f5;
            --color-primary-dark: #1450d9;
            --color-primary-light: #eef7ff;
            --color-accent: #f59e0b;
            --color-bg: #f8fafc;
            --color-surface: #ffffff;
            --color-text: #0f172a;
            --color-text-weak: #64748b;
            --color-border: #e2e8f0;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-md: 0 4px 24px rgba(15, 23, 42, 0.06);
            --shadow-lg: 0 12px 32px rgba(15, 23, 42, 0.12);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

        * {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
            background: var(--color-bg);
            color: var(--color-text);
            line-height: 1.75;
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
        }

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

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

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

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

        /* ===== Header / Nav ===== */
        .site-header {
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(226, 232, 240, 0.7);
            position: sticky;
            top: 0;
            z-index: 100;
            transition: box-shadow 0.3s ease;
        }

        .site-header.scrolled {
            box-shadow: 0 4px 20px rgba(15, 23, 42, 0.06);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            gap: 24px;
        }

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

        .logo-mark {
            width: 40px;
            height: 40px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: linear-gradient(135deg, var(--color-primary), #1450d9);
            border-radius: 12px;
            color: #fff;
            font-size: 18px;
            font-weight: 800;
            box-shadow: 0 4px 12px rgba(26, 102, 245, 0.25);
        }

        .logo-text {
            font-size: 20px;
            font-weight: 800;
            letter-spacing: 0.5px;
            background: linear-gradient(135deg, #1a66f5, #1450d9);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

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

        .nav-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 10px 18px;
            border-radius: 12px;
            font-size: 15px;
            font-weight: 600;
            color: #334155;
            transition: var(--transition);
            border: 1px solid transparent;
        }

        .nav-link i {
            font-size: 14px;
            opacity: 0.7;
        }

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

        .nav-link.active {
            color: var(--color-primary);
            background: var(--color-primary-light);
            border-color: rgba(26, 102, 245, 0.1);
        }

        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: linear-gradient(135deg, #1a66f5, #1450d9);
            color: #fff;
            font-weight: 700;
            font-size: 14px;
            padding: 10px 22px;
            border-radius: 12px;
            box-shadow: 0 4px 16px rgba(26, 102, 245, 0.3);
            transition: var(--transition);
            border: 1px solid transparent;
        }

        .nav-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(26, 102, 245, 0.4);
            color: #fff;
        }

        .mobile-toggle {
            display: none;
            width: 44px;
            height: 44px;
            align-items: center;
            justify-content: center;
            border-radius: 12px;
            border: 1px solid var(--color-border);
            color: var(--color-text);
            font-size: 20px;
            background: #fff;
        }

        @media (max-width: 768px) {
            .header-inner {
                height: 64px;
            }
            .mobile-toggle {
                display: flex;
            }
            .main-nav {
                display: none;
                position: absolute;
                top: 64px;
                left: 0;
                right: 0;
                flex-direction: column;
                background: #fff;
                padding: 20px;
                border-bottom: 1px solid var(--color-border);
                box-shadow: 0 16px 32px rgba(15, 23, 42, 0.12);
                gap: 6px;
            }
            .main-nav.open {
                display: flex;
            }
            .nav-link {
                width: 100%;
                justify-content: center;
                padding: 14px;
            }
            .nav-cta {
                width: 100%;
                justify-content: center;
                margin-top: 8px;
            }
        }

        /* ===== Page Hero ===== */
        .page-hero {
            position: relative;
            padding: 100px 0 80px;
            background: linear-gradient(rgba(15, 23, 42, 0.55), rgba(15, 23, 42, 0.7)), url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            color: #fff;
            text-align: center;
        }

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

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.15);
            backdrop-filter: blur(8px);
            border: 1px solid rgba(255, 255, 255, 0.2);
            padding: 8px 20px;
            border-radius: 100px;
            font-size: 14px;
            font-weight: 600;
            letter-spacing: 0.5px;
            margin-bottom: 24px;
        }

        .hero-title {
            font-size: 48px;
            font-weight: 800;
            line-height: 1.2;
            letter-spacing: 1px;
            margin-bottom: 20px;
        }

        .hero-subtitle {
            font-size: 18px;
            color: rgba(255, 255, 255, 0.85);
            max-width: 680px;
            margin: 0 auto 32px;
            line-height: 1.8;
        }

        @media (max-width: 768px) {
            .page-hero {
                padding: 70px 0 50px;
            }
            .hero-title {
                font-size: 32px;
            }
            .hero-subtitle {
                font-size: 16px;
            }
        }

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

        .section-alt {
            background: #fff;
        }

        .section-head {
            text-align: center;
            max-width: 700px;
            margin: 0 auto 56px;
        }

        .section-tag {
            display: inline-block;
            background: var(--color-primary-light);
            color: var(--color-primary);
            font-size: 13px;
            font-weight: 700;
            padding: 6px 16px;
            border-radius: 100px;
            letter-spacing: 1px;
            margin-bottom: 16px;
        }

        .section-title {
            font-size: 36px;
            font-weight: 800;
            color: var(--color-text);
            line-height: 1.3;
            margin-bottom: 16px;
        }

        .section-desc {
            font-size: 16px;
            color: var(--color-text-weak);
            line-height: 1.8;
        }

        @media (max-width: 768px) {
            .section {
                padding: 60px 0;
            }
            .section-title {
                font-size: 28px;
            }
        }

        /* ===== Features ===== */
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .feature-card {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 36px 28px;
            border: 1px solid var(--color-border);
            box-shadow: var(--shadow-md);
            transition: var(--transition);
        }

        .feature-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: rgba(26, 102, 245, 0.3);
        }

        .feature-icon {
            width: 56px;
            height: 56px;
            border-radius: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            color: var(--color-primary);
            background: var(--color-primary-light);
            margin-bottom: 20px;
        }

        .feature-card h3 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 12px;
        }

        .feature-card p {
            font-size: 15px;
            color: var(--color-text-weak);
            line-height: 1.8;
            margin: 0;
        }

        @media (max-width: 1024px) {
            .feature-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

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

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

        .guide-card {
            background: #fff;
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--color-border);
            box-shadow: var(--shadow-md);
            transition: var(--transition);
        }

        .guide-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
        }

        .guide-card-img {
            height: 200px;
            overflow: hidden;
            position: relative;
        }

        .guide-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }

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

        .guide-card-img::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 40%, rgba(15, 23, 42, 0.35));
        }

        .guide-card-body {
            padding: 28px;
        }

        .guide-card-body h3 {
            font-size: 19px;
            font-weight: 700;
            margin-bottom: 10px;
            line-height: 1.4;
        }

        .guide-card-body p {
            font-size: 14px;
            color: var(--color-text-weak);
            line-height: 1.7;
            margin-bottom: 18px;
        }

        .guide-card-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            font-weight: 700;
            color: var(--color-primary);
        }

        .guide-card-link i {
            font-size: 12px;
            transition: transform 0.3s ease;
        }

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

        @media (max-width: 1024px) {
            .guide-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

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

        /* ===== Steps ===== */
        .steps-wrap {
            background: linear-gradient(135deg, #0f172a, #1e293b);
            border-radius: var(--radius-xl);
            padding: 56px;
            color: #fff;
            position: relative;
            overflow: hidden;
        }

        .steps-wrap::before {
            content: '';
            position: absolute;
            top: -80px;
            right: -80px;
            width: 240px;
            height: 240px;
            border-radius: 50%;
            background: rgba(26, 102, 245, 0.2);
            filter: blur(60px);
        }

        .steps-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 40px;
            position: relative;
            z-index: 2;
        }

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

        .step-number {
            display: inline-flex;
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: linear-gradient(135deg, #3389ff, #1450d9);
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 18px;
            margin-bottom: 20px;
            box-shadow: 0 0 30px rgba(51, 137, 255, 0.4);
        }

        .step-item h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 10px;
        }

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

        @media (max-width: 768px) {
            .steps-wrap {
                padding: 40px 28px;
            }
            .steps-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
        }

        /* ===== Topic list ===== */
        .topic-list {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }

        .topic-item {
            display: flex;
            align-items: flex-start;
            gap: 16px;
            background: #fff;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            padding: 24px;
            transition: var(--transition);
        }

        .topic-item:hover {
            border-color: rgba(26, 102, 245, 0.3);
            box-shadow: var(--shadow-md);
            transform: translateX(4px);
        }

        .topic-icon {
            width: 42px;
            height: 42px;
            border-radius: 12px;
            flex-shrink: 0;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            color: var(--color-primary);
            background: var(--color-primary-light);
        }

        .topic-content h3 {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 6px;
        }

        .topic-content p {
            font-size: 14px;
            color: var(--color-text-weak);
            line-height: 1.7;
            margin: 0;
        }

        @media (max-width: 768px) {
            .topic-list {
                grid-template-columns: 1fr;
            }
        }

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

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

        .faq-item:hover {
            border-color: rgba(26, 102, 245, 0.25);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            padding: 24px 28px;
            cursor: pointer;
            font-size: 16px;
            font-weight: 700;
            color: var(--color-text);
            user-select: none;
        }

        .faq-question i {
            font-size: 14px;
            color: var(--color-text-weak);
            transition: transform 0.3s ease;
            flex-shrink: 0;
        }

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

        .faq-answer {
            display: none;
            padding: 0 28px 24px;
            font-size: 15px;
            color: var(--color-text-weak);
            line-height: 1.8;
        }

        .faq-item.active .faq-answer {
            display: block;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, #1a66f5 0%, #1450d9 100%);
            padding: 80px 0;
            text-align: center;
            color: #fff;
        }

        .cta-title {
            font-size: 34px;
            font-weight: 800;
            margin-bottom: 16px;
        }

        .cta-desc {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.85);
            max-width: 520px;
            margin: 0 auto 32px;
            line-height: 1.8;
        }

        .cta-btn {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: #fff;
            color: #1450d9;
            font-weight: 800;
            font-size: 16px;
            padding: 16px 40px;
            border-radius: 100px;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.15);
            transition: var(--transition);
        }

        .cta-btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 16px 40px rgba(0, 0, 0, 0.2);
        }

        @media (max-width: 768px) {
            .cta-section {
                padding: 60px 0;
            }
            .cta-title {
                font-size: 26px;
            }
        }

        /* ===== Footer ===== */
        .site-footer {
            background: #0f172a;
            color: #94a3b8;
            padding-top: 70px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr;
            gap: 48px;
            padding-bottom: 48px;
        }

        .footer-logo {
            font-size: 24px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 16px;
            letter-spacing: 0.5px;
        }

        .footer-desc {
            font-size: 14px;
            line-height: 1.8;
            color: #64748b;
            margin-bottom: 20px;
            max-width: 340px;
        }

        .footer-social {
            display: flex;
            gap: 12px;
        }

        .footer-social a {
            width: 40px;
            height: 40px;
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(255, 255, 255, 0.06);
            color: #94a3b8;
            font-size: 16px;
            transition: var(--transition);
        }

        .footer-social a:hover {
            background: rgba(26, 102, 245, 0.2);
            color: #60a5fa;
            transform: translateY(-3px);
        }

        .footer-heading {
            color: #fff;
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 20px;
            letter-spacing: 0.5px;
        }

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

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

        .footer-links a {
            color: #64748b;
            font-size: 14px;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: var(--transition);
        }

        .footer-links a i {
            font-size: 12px;
            color: #475569;
        }

        .footer-links a:hover {
            color: #60a5fa;
            padding-left: 4px;
        }

        .footer-links span {
            color: #64748b;
            font-size: 14px;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding: 24px 0;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        .footer-bottom span {
            font-size: 13px;
            color: #475569;
        }

        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 36px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

        /* focus states */
        a:focus-visible,
        button:focus-visible {
            outline: 3px solid rgba(26, 102, 245, 0.4);
            outline-offset: 2px;
            border-radius: 4px;
        }

/* roulang page: article */
:root {
            --primary: #0f4c81;
            --primary-dark: #0a355c;
            --primary-light: #3a7bd5;
            --accent: #f0a500;
            --bg: #f8fafc;
            --white: #ffffff;
            --text: #1e293b;
            --text-light: #5b6b7c;
            --border: #e2e8f0;
            --radius: 16px;
            --radius-sm: 10px;
            --shadow: 0 4px 24px rgba(15, 76, 129, 0.08);
            --shadow-lg: 0 12px 40px rgba(15, 76, 129, 0.12);
            --transition: all 0.3s ease;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            background: var(--bg);
            color: var(--text);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }

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

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

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

        input,
        textarea {
            font-family: inherit;
        }

        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            box-shadow: 0 1px 10px rgba(15, 76, 129, 0.05);
        }

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

        .brand-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 1.3rem;
            color: var(--primary);
            white-space: nowrap;
            letter-spacing: -0.5px;
        }

        .brand-logo:hover {
            opacity: 0.85;
        }

        .brand-icon {
            width: 38px;
            height: 38px;
            border-radius: 12px;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1rem;
            box-shadow: 0 4px 12px rgba(15, 76, 129, 0.25);
            flex-shrink: 0;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 30px;
        }

        .nav-link {
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-light);
            padding: 8px 2px;
            position: relative;
            transition: var(--transition);
            white-space: nowrap;
        }

        .nav-link::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 0;
            height: 3px;
            border-radius: 3px;
            background: var(--primary);
            transition: var(--transition);
        }

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

        .nav-link:hover::after,
        .nav-link.active::after {
            width: 100%;
        }

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

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

        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 22px;
            border-radius: 999px;
            font-size: 0.92rem;
            font-weight: 600;
            transition: var(--transition);
            white-space: nowrap;
            cursor: pointer;
            border: 2px solid transparent;
        }

        .btn-primary {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 4px 14px rgba(15, 76, 129, 0.3);
        }

        .btn-primary:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(15, 76, 129, 0.35);
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 2px 8px rgba(15, 76, 129, 0.3);
        }

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

        .btn-outline:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-2px);
        }

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

        .btn-sm {
            padding: 8px 16px;
            font-size: 0.85rem;
        }

        .btn-block {
            width: 100%;
            justify-content: center;
        }

        .btn:focus-visible,
        .nav-link:focus-visible,
        a:focus-visible {
            outline: 3px solid rgba(15, 76, 129, 0.35);
            outline-offset: 3px;
        }

        .nav-toggle {
            display: none;
            width: 42px;
            height: 42px;
            border-radius: 12px;
            background: var(--bg);
            color: var(--text);
            font-size: 1.1rem;
            align-items: center;
            justify-content: center;
            border: 1px solid var(--border);
            transition: var(--transition);
        }

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

        .article-hero {
            position: relative;
            padding: 56px 0 48px;
            background: linear-gradient(135deg, #f0f6fc 0%, #eaf1f8 50%, #f8fafc 100%);
            border-bottom: 1px solid var(--border);
            overflow: hidden;
        }

        .article-hero::before {
            content: '';
            position: absolute;
            top: -120px;
            right: -80px;
            width: 360px;
            height: 360px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(15, 76, 129, 0.08), transparent 65%);
            pointer-events: none;
        }

        .article-hero::after {
            content: '';
            position: absolute;
            bottom: -100px;
            left: 10%;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(240, 165, 0, 0.07), transparent 65%);
            pointer-events: none;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 0.85rem;
            color: var(--text-light);
            margin-bottom: 28px;
            flex-wrap: wrap;
            position: relative;
            z-index: 1;
        }

        .breadcrumb a {
            color: var(--text-light);
            font-weight: 500;
        }

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

        .breadcrumb i {
            font-size: 0.7rem;
            color: #94a3b8;
        }

        .breadcrumb span {
            color: var(--text);
            font-weight: 600;
            max-width: 320px;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .article-hero-content {
            position: relative;
            z-index: 1;
            max-width: 860px;
        }

        .article-hero-content h1 {
            font-size: 2.3rem;
            font-weight: 800;
            line-height: 1.35;
            color: var(--primary-dark);
            letter-spacing: -0.5px;
            margin: 16px 0 14px;
        }

        .article-summary {
            font-size: 1.05rem;
            color: var(--text-light);
            line-height: 1.8;
            max-width: 720px;
        }

        .article-meta {
            display: flex;
            align-items: center;
            gap: 18px;
            flex-wrap: wrap;
        }

        .tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 5px 14px;
            border-radius: 999px;
            font-size: 0.78rem;
            font-weight: 600;
            background: rgba(15, 76, 129, 0.1);
            color: var(--primary);
            transition: var(--transition);
        }

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

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

        .meta-item {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.85rem;
            color: var(--text-light);
        }

        .meta-item i {
            color: var(--primary-light);
        }

        .article-main {
            padding: 56px 0 40px;
        }

        .article-layout {
            display: grid;
            grid-template-columns: 1fr 320px;
            gap: 40px;
            align-items: start;
        }

        .article-content {
            background: var(--white);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
            overflow: hidden;
        }

        .article-cover-wrap {
            border-bottom: 1px solid var(--border);
            max-height: 420px;
            overflow: hidden;
            position: relative;
        }

        .article-cover-wrap::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 60px;
            background: linear-gradient(to top, rgba(255, 255, 255, 0.6), transparent);
        }

        .article-cover {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .article-body {
            padding: 40px 44px;
            color: var(--text);
            font-size: 1.02rem;
            line-height: 1.9;
        }

        .article-body h2 {
            font-size: 1.55rem;
            font-weight: 700;
            color: var(--primary-dark);
            margin: 2.2rem 0 1rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid #eef2f7;
            letter-spacing: -0.3px;
        }

        .article-body h3 {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--primary-dark);
            margin: 1.8rem 0 0.8rem;
        }

        .article-body h4 {
            font-size: 1.08rem;
            font-weight: 600;
            color: var(--text);
            margin: 1.4rem 0 0.6rem;
        }

        .article-body p {
            margin-bottom: 1.25rem;
        }

        .article-body strong {
            color: var(--primary-dark);
            font-weight: 600;
        }

        .article-body ul,
        .article-body ol {
            margin: 1rem 0 1.5rem;
            padding-left: 1.6rem;
        }

        .article-body ul {
            list-style: disc;
        }

        .article-body ol {
            list-style: decimal;
        }

        .article-body li {
            margin-bottom: 0.5rem;
        }

        .article-body li::marker {
            color: var(--primary);
        }

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

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

        .article-body img {
            border-radius: var(--radius-sm);
            margin: 1.5rem 0;
            box-shadow: var(--shadow);
        }

        .article-body blockquote {
            border-left: 4px solid var(--primary);
            background: #f1f5f9;
            padding: 1rem 1.4rem;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            margin: 1.5rem 0;
            color: var(--text-light);
            font-size: 0.98rem;
        }

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

        .article-body table {
            width: 100%;
            border-collapse: collapse;
            margin: 1.5rem 0;
            font-size: 0.92rem;
        }

        .article-body th,
        .article-body td {
            border: 1px solid var(--border);
            padding: 0.75rem 1rem;
            text-align: left;
        }

        .article-body th {
            background: #f1f5f9;
            font-weight: 600;
            color: var(--primary-dark);
        }

        .article-body tr:nth-child(even) td {
            background: #fafbfc;
        }

        .article-tags {
            padding: 24px 44px 36px;
            border-top: 1px solid var(--border);
            display: flex;
            align-items: center;
            gap: 10px;
            flex-wrap: wrap;
        }

        .article-tags .tag-label {
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--text-light);
            margin-right: 4px;
        }

        .not-found-card {
            padding: 80px 44px;
            text-align: center;
        }

        .not-found-icon {
            width: 88px;
            height: 88px;
            border-radius: 50%;
            background: rgba(240, 165, 0, 0.12);
            color: var(--accent);
            font-size: 2.4rem;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 24px;
        }

        .not-found-card h2 {
            font-size: 1.65rem;
            color: var(--primary-dark);
            margin-bottom: 12px;
            font-weight: 700;
        }

        .not-found-card p {
            color: var(--text-light);
            max-width: 360px;
            margin: 0 auto 28px;
        }

        .not-found-actions {
            display: flex;
            gap: 14px;
            justify-content: center;
            flex-wrap: wrap;
        }

        .article-sidebar {
            display: flex;
            flex-direction: column;
            gap: 24px;
            position: sticky;
            top: 96px;
        }

        .sidebar-card {
            background: var(--white);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            padding: 24px;
            box-shadow: var(--shadow);
        }

        .sidebar-card h3 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--primary-dark);
            margin-bottom: 16px;
            padding-bottom: 12px;
            border-bottom: 2px solid #f1f5f9;
            position: relative;
        }

        .sidebar-card h3::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: -2px;
            width: 42px;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
        }

        .about-card p {
            font-size: 0.9rem;
            color: var(--text-light);
            line-height: 1.75;
            margin-bottom: 16px;
        }

        .nav-card ul {
            list-style: none;
        }

        .nav-card ul li {
            border-bottom: 1px solid #f1f5f9;
        }

        .nav-card ul li:last-child {
            border-bottom: none;
        }

        .nav-card ul li a {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 13px 4px;
            font-size: 0.92rem;
            font-weight: 500;
            color: var(--text);
            transition: var(--transition);
        }

        .nav-card ul li a:hover {
            color: var(--primary);
            padding-left: 10px;
        }

        .nav-card ul li a i:first-child {
            width: 30px;
            height: 30px;
            border-radius: 8px;
            background: rgba(15, 76, 129, 0.1);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.85rem;
            flex-shrink: 0;
        }

        .nav-card .arrow {
            margin-left: auto;
            color: #b0c4d8;
            font-size: 0.8rem;
        }

        .update-list {
            list-style: none;
        }

        .update-list li {
            margin-bottom: 14px;
        }

        .update-list li:last-child {
            margin-bottom: 0;
        }

        .update-list li a {
            display: flex;
            gap: 12px;
            align-items: flex-start;
            padding: 8px;
            border-radius: var(--radius-sm);
            transition: var(--transition);
        }

        .update-list li a:hover {
            background: #f1f5f9;
        }

        .update-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--accent);
            flex-shrink: 0;
            margin-top: 9px;
            position: relative;
        }

        .update-list li a:hover .update-dot {
            background: var(--primary);
        }

        .update-list li p {
            font-size: 0.88rem;
            font-weight: 500;
            color: var(--text);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            line-height: 1.5;
            margin-bottom: 4px;
        }

        .update-list li a:hover p {
            color: var(--primary);
        }

        .update-list li span {
            font-size: 0.78rem;
            color: #94a3b8;
        }

        .related-section {
            padding: 64px 0;
            background: var(--white);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }

        .section-header-row {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            gap: 24px;
            margin-bottom: 36px;
            flex-wrap: wrap;
        }

        .section-eyebrow {
            display: block;
            font-size: 0.8rem;
            font-weight: 700;
            letter-spacing: 2px;
            text-transform: uppercase;
            color: var(--accent);
            margin-bottom: 6px;
        }

        .section-header-row h2 {
            font-size: 1.9rem;
            font-weight: 800;
            color: var(--primary-dark);
            letter-spacing: -0.5px;
        }

        .section-header-row p {
            color: var(--text-light);
            margin-top: 6px;
            font-size: 0.95rem;
        }

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

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

        .related-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: rgba(15, 76, 129, 0.2);
        }

        .related-card-img {
            height: 160px;
            overflow: hidden;
            position: relative;
            background: linear-gradient(135deg, #dbeafe, #eef2ff);
        }

        .related-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }

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

        .related-card-body {
            padding: 18px 20px 20px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }

        .related-card-body .tag {
            align-self: flex-start;
            margin-bottom: 10px;
        }

        .related-card-body h3 {
            font-size: 1.02rem;
            font-weight: 700;
            color: var(--primary-dark);
            margin-bottom: 8px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            line-height: 1.5;
        }

        .related-card-body p {
            font-size: 0.85rem;
            color: var(--text-light);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            flex: 1;
            margin-bottom: 12px;
            line-height: 1.65;
        }

        .related-card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 0.78rem;
            color: #94a3b8;
            border-top: 1px solid #edf1f5;
            padding-top: 12px;
        }

        .related-card-meta span:last-child {
            color: var(--primary);
            font-weight: 600;
            display: flex;
            align-items: center;
            gap: 5px;
        }

        .related-card-meta span:last-child i {
            font-size: 0.7rem;
            transition: transform 0.3s ease;
        }

        .related-card:hover .related-card-meta span:last-child i {
            transform: translateX(4px);
        }

        .cta-section {
            padding: 64px 0;
            background: linear-gradient(135deg, #0a355c 0%, #0f4c81 50%, #1d5f9e 100%);
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -100px;
            right: -60px;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.06);
        }

        .cta-section::after {
            content: '';
            position: absolute;
            bottom: -120px;
            left: 15%;
            width: 260px;
            height: 260px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.04);
        }

        .cta-inner {
            position: relative;
            z-index: 1;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 40px;
            flex-wrap: wrap;
        }

        .cta-content h2 {
            font-size: 1.9rem;
            font-weight: 800;
            color: #fff;
            letter-spacing: -0.5px;
            margin-bottom: 10px;
        }

        .cta-content p {
            color: rgba(255, 255, 255, 0.75);
            font-size: 0.98rem;
            max-width: 520px;
        }

        .cta-actions {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }

        .btn-white {
            background: #fff;
            color: var(--primary);
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
        }

        .btn-white:hover {
            background: var(--accent);
            color: #fff;
            transform: translateY(-2px);
        }

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

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

        .site-footer {
            background: #0b1e2f;
            color: rgba(255, 255, 255, 0.7);
            padding-top: 56px;
        }

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

        .footer-logo {
            font-size: 1.45rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 14px;
            letter-spacing: -0.5px;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .footer-logo::before {
            content: '';
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: var(--accent);
            display: inline-block;
        }

        .footer-desc {
            font-size: 0.9rem;
            line-height: 1.8;
            max-width: 360px;
            margin-bottom: 20px;
            color: rgba(255, 255, 255, 0.55);
        }

        .footer-social {
            display: flex;
            gap: 12px;
        }

        .footer-social a {
            width: 38px;
            height: 38px;
            border-radius: 10px;
            border: 1px solid rgba(255, 255, 255, 0.15);
            display: flex;
            align-items: center;
            justify-content: center;
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.9rem;
            transition: var(--transition);
        }

        .footer-social a:hover {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            transform: translateY(-3px);
        }

        .footer-heading {
            font-size: 0.95rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 18px;
            position: relative;
            padding-bottom: 10px;
        }

        .footer-heading::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 28px;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
        }

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

        .footer-links a,
        .footer-links span {
            color: rgba(255, 255, 255, 0.55);
            font-size: 0.9rem;
            transition: var(--transition);
            display: flex;
            align-items: center;
            gap: 6px;
        }

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

        .footer-links a i {
            font-size: 0.7rem;
            color: var(--primary-light);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 20px 0;
            display: flex;
            justify-content: space-between;
            gap: 12px;
            flex-wrap: wrap;
        }

        .footer-bottom .container {
            display: flex;
            justify-content: space-between;
            gap: 12px;
            flex-wrap: wrap;
        }

        .footer-bottom span {
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.4);
        }

        @media (max-width: 1024px) {
            .related-grid {
                grid-template-columns: repeat(2, 1fr);
            }

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

            .article-sidebar {
                position: static;
                display: grid;
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }
        }

        @media (max-width: 768px) {
            .container {
                padding: 0 16px;
            }

            .header-inner {
                height: 64px;
            }

            .brand-text {
                font-size: 1.1rem;
            }

            .brand-icon {
                width: 32px;
                height: 32px;
                font-size: 0.85rem;
            }

            .main-nav {
                position: fixed;
                top: 64px;
                left: 0;
                right: 0;
                background: #fff;
                flex-direction: column;
                align-items: stretch;
                padding: 16px 24px 24px;
                gap: 4px;
                border-bottom: 1px solid var(--border);
                box-shadow: 0 16px 32px rgba(15, 76, 129, 0.1);
                transform: translateY(-120%);
                transition: transform 0.35s ease;
                z-index: 99;
                border-radius: 0 0 16px 16px;
            }

            .main-nav.open {
                transform: translateY(0);
            }

            .nav-link {
                padding: 14px 12px;
                border-radius: 10px;
                font-size: 1rem;
            }

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

            .nav-link:hover,
            .nav-link.active {
                background: rgba(15, 76, 129, 0.08);
                color: var(--primary);
            }

            .header-cta {
                display: none;
            }

            .nav-toggle {
                display: flex;
            }

            .article-hero {
                padding: 40px 0 36px;
            }

            .article-hero-content h1 {
                font-size: 1.55rem;
            }

            .article-summary {
                font-size: 0.95rem;
            }

            .article-body {
                padding: 28px 20px;
            }

            .article-tags {
                padding: 20px;
            }

            .article-meta {
                gap: 12px;
            }

            .section-header-row {
                flex-direction: column;
                align-items: flex-start;
                gap: 16px;
            }

            .section-header-row h2 {
                font-size: 1.5rem;
            }

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

            .cta-inner {
                flex-direction: column;
                align-items: flex-start;
            }

            .cta-content h2 {
                font-size: 1.45rem;
            }
        }

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

            .article-sidebar {
                grid-template-columns: 1fr;
            }

            .related-card-img {
                height: 180px;
            }

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

            .not-found-card {
                padding: 56px 20px;
            }

            .not-found-actions {
                flex-direction: column;
            }

            .not-found-actions .btn {
                width: 100%;
                justify-content: center;
            }

            .article-tags {
                flex-direction: column;
                align-items: flex-start;
            }
        }

        @media (prefers-reduced-motion: reduce) {
            * {
                animation: none !important;
                transition: none !important;
            }
        }

/* roulang page: category2 */
:root {
            --primary: #16324f;
            --primary-dark: #0e2033;
            --accent: #d4a843;
            --accent-light: #e8c66a;
            --bg-body: #ffffff;
            --bg-mist: #f5f7fa;
            --text-main: #1a2b3c;
            --text-light: #6b7a8f;
            --border: #e2e8f0;
            --radius-lg: 18px;
            --radius-md: 12px;
            --radius-sm: 8px;
            --shadow-sm: 0 2px 10px rgba(22, 50, 79, .06);
            --shadow-md: 0 8px 30px rgba(22, 50, 79, .10);
            --shadow-lg: 0 16px 50px rgba(22, 50, 79, .14);
            --header-h: 76px;
            --spacer-section: clamp(64px, 8vw, 110px);
            --container: 1200px;
            --radius: 16px;
        }

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

        html { scroll-behavior: smooth; }

        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            background: var(--bg-body);
            color: var(--text-main);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
            text-rendering: optimizeLegibility;
        }

        img { max-width: 100%; display: block; }
        a { text-decoration: none; color: inherit; transition: color .25s ease; }
        button { background: none; border: none; cursor: pointer; font-family: inherit; }
        input, select, textarea { font-family: inherit; }

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

        /* ===== Header ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, .92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(226, 232, 240, .8);
            transition: box-shadow .3s ease;
        }
        .site-header.scrolled { box-shadow: var(--shadow-sm); }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: var(--header-h);
            gap: 20px;
        }
        .logo {
            font-size: 23px;
            font-weight: 800;
            letter-spacing: .5px;
            color: var(--primary);
            display: flex;
            align-items: center;
            gap: 10px;
            white-space: nowrap;
        }
        .logo i {
            color: var(--accent);
            font-size: 26px;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 8px;
            margin-left: auto;
        }
        .nav-link {
            display: inline-block;
            padding: 9px 18px;
            border-radius: 30px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-main);
            background: transparent;
            transition: background .25s ease, color .25s ease, transform .2s ease;
        }
        .nav-link:hover {
            background: rgba(22, 50, 79, .06);
            color: var(--primary);
            transform: translateY(-1px);
        }
        .nav-link:focus-visible {
            outline: 3px solid rgba(212, 168, 67, .5);
            outline-offset: 2px;
        }
        .nav-link.active {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 4px 14px rgba(22, 50, 79, .25);
        }
        .header-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 22px;
            border-radius: 30px;
            background: linear-gradient(135deg, var(--accent), #c29432);
            color: #fff;
            font-size: 14px;
            font-weight: 600;
            white-space: nowrap;
            box-shadow: 0 4px 16px rgba(212, 168, 67, .35);
            transition: transform .25s ease, box-shadow .25s ease;
        }
        .header-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(212, 168, 67, .45);
            color: #fff;
        }
        .header-cta:active { transform: translateY(0) scale(.97); }
        .menu-toggle {
            display: none;
            width: 42px;
            height: 42px;
            align-items: center;
            justify-content: center;
            border-radius: 10px;
            font-size: 20px;
            color: var(--primary);
            background: rgba(22, 50, 79, .06);
            transition: background .2s ease;
        }
        .menu-toggle:hover { background: rgba(22, 50, 79, .12); }

        /* ===== Hero ===== */
        .hero {
            position: relative;
            min-height: 500px;
            display: flex;
            align-items: center;
            background: linear-gradient(100deg, rgba(14, 32, 51, .94) 0%, rgba(22, 50, 79, .82) 50%, rgba(22, 50, 79, .55) 100%), url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            color: #fff;
            padding: clamp(80px, 10vw, 130px) 0;
            overflow: hidden;
        }
        .hero::after {
            content: "";
            position: absolute;
            right: -120px;
            bottom: -140px;
            width: 420px;
            height: 420px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(212, 168, 67, .22), transparent 65%);
            pointer-events: none;
        }
        .hero-content {
            max-width: 720px;
            position: relative;
            z-index: 2;
        }
        .hero-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 7px 16px;
            border-radius: 30px;
            background: rgba(255, 255, 255, .12);
            border: 1px solid rgba(255, 255, 255, .18);
            font-size: 13px;
            letter-spacing: 1px;
            color: rgba(255, 255, 255, .9);
            margin-bottom: 22px;
        }
        .hero-title {
            font-size: clamp(34px, 5vw, 54px);
            font-weight: 800;
            line-height: 1.2;
            letter-spacing: 1px;
            margin-bottom: 20px;
        }
        .hero-title span {
            color: var(--accent-light);
        }
        .hero-subtitle {
            font-size: clamp(15px, 1.6vw, 18px);
            line-height: 1.8;
            color: rgba(255, 255, 255, .82);
            margin-bottom: 32px;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            padding: 13px 30px;
            border-radius: 40px;
            font-size: 15px;
            font-weight: 600;
            transition: transform .25s ease, box-shadow .25s ease;
        }
        .btn:hover { transform: translateY(-3px); }
        .btn:focus-visible { outline: 3px solid rgba(212, 168, 67, .6); outline-offset: 3px; }
        .btn-gold {
            background: linear-gradient(135deg, var(--accent), #b8882e);
            color: #fff;
            box-shadow: 0 6px 22px rgba(212, 168, 67, .4);
        }
        .btn-gold:hover { box-shadow: 0 10px 30px rgba(212, 168, 67, .55); color: #fff; }
        .btn-ghost {
            background: rgba(255, 255, 255, .1);
            border: 1px solid rgba(255, 255, 255, .3);
            color: #fff;
        }
        .btn-ghost:hover { background: rgba(255, 255, 255, .18); color: #fff; }

        /* ===== Section ===== */
        .section { padding: var(--spacer-section) 0; }
        .section-mist { background: var(--bg-mist); }
        .section-head {
            text-align: center;
            max-width: 720px;
            margin: 0 auto 48px;
        }
        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 2px;
            color: var(--accent);
            text-transform: uppercase;
            background: rgba(212, 168, 67, .1);
            padding: 6px 16px;
            border-radius: 30px;
            margin-bottom: 14px;
        }
        .section-title {
            font-size: clamp(26px, 3.6vw, 38px);
            font-weight: 800;
            color: var(--primary);
            line-height: 1.3;
            margin-bottom: 14px;
        }
        .section-desc {
            font-size: 15px;
            color: var(--text-light);
            line-height: 1.8;
        }

        /* ===== News Card ===== */
        .cards-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 26px;
        }
        .info-card {
            background: #fff;
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            overflow: hidden;
            display: flex;
            flex-direction: column;
            transition: transform .35s ease, box-shadow .35s ease;
        }
        .info-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-md);
        }
        .info-card-media {
            position: relative;
            height: 190px;
            overflow: hidden;
        }
        .info-card-media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .5s ease;
        }
        .info-card:hover .info-card-media img { transform: scale(1.06); }
        .info-card-media::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 40%, rgba(14, 32, 51, .45));
        }
        .info-card-tag {
            position: absolute;
            top: 14px;
            left: 14px;
            z-index: 3;
            background: rgba(255, 255, 255, .92);
            color: var(--primary);
            font-size: 12px;
            font-weight: 600;
            padding: 5px 12px;
            border-radius: 20px;
            box-shadow: 0 2px 8px rgba(0, 0, 0, .1);
        }
        .info-card-tag.gold {
            background: var(--accent);
            color: #fff;
        }
        .info-card-body {
            padding: 22px 22px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .info-card-title {
            font-size: 17px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.5;
            margin-bottom: 10px;
            transition: color .25s ease;
        }
        .info-card:hover .info-card-title { color: var(--accent); }
        .info-card-text {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.75;
            flex: 1;
        }
        .info-card-meta {
            display: flex;
            align-items: center;
            gap: 14px;
            margin-top: 16px;
            padding-top: 14px;
            border-top: 1px solid #eef2f6;
            font-size: 13px;
            color: var(--text-light);
        }
        .info-card-meta i { color: var(--accent); }

        /* ===== Topic ===== */
        .topic-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 26px;
        }
        .topic-card {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            min-height: 300px;
            display: flex;
            align-items: flex-end;
            box-shadow: var(--shadow-sm);
            transition: transform .35s ease, box-shadow .35s ease;
        }
        .topic-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
        }
        .topic-card img {
            position: absolute;
            inset: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .6s ease;
        }
        .topic-card:hover img { transform: scale(1.07); }
        .topic-card::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(185deg, rgba(14, 32, 51, .05) 30%, rgba(14, 32, 51, .92) 100%);
        }
        .topic-card-body {
            position: relative;
            z-index: 2;
            padding: 28px 24px;
            color: #fff;
        }
        .topic-card-body h3 {
            font-size: 19px;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .topic-card-body p {
            font-size: 13.5px;
            color: rgba(255, 255, 255, .8);
            line-height: 1.7;
            margin-bottom: 14px;
        }
        .topic-more {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            font-weight: 600;
            color: var(--accent-light);
        }
        .topic-more i { transition: transform .25s ease; }
        .topic-card:hover .topic-more i { transform: translateX(4px); }

        /* ===== Stats ===== */
        .stats-section {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            color: #fff;
            padding: clamp(56px, 6vw, 80px) 0;
            position: relative;
            overflow: hidden;
        }
        .stats-section::before {
            content: "";
            position: absolute;
            top: -80px;
            right: -60px;
            width: 260px;
            height: 260px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(212, 168, 67, .25), transparent 70%);
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
            position: relative;
            z-index: 2;
        }
        .stat-item {
            text-align: center;
            padding: 20px 12px;
            border-radius: var(--radius-lg);
            background: rgba(255, 255, 255, .05);
            border: 1px solid rgba(255, 255, 255, .08);
            transition: background .3s ease, transform .3s ease;
        }
        .stat-item:hover {
            background: rgba(255, 255, 255, .1);
            transform: translateY(-3px);
        }
        .stat-num {
            font-size: clamp(30px, 4vw, 46px);
            font-weight: 800;
            color: var(--accent-light);
            line-height: 1.2;
        }
        .stat-label {
            font-size: 14px;
            color: rgba(255, 255, 255, .75);
            margin-top: 8px;
        }

        /* ===== Feature List ===== */
        .feature-list {
            max-width: 880px;
            margin: 0 auto;
        }
        .feature-item {
            display: flex;
            align-items: flex-start;
            gap: 22px;
            background: #fff;
            border-radius: var(--radius-md);
            border: 1px solid var(--border);
            padding: 24px 28px;
            margin-bottom: 16px;
            transition: box-shadow .3s ease, transform .3s ease;
        }
        .feature-item:hover {
            box-shadow: var(--shadow-sm);
            transform: translateX(4px);
        }
        .feature-date {
            flex-shrink: 0;
            min-width: 88px;
            text-align: center;
            background: var(--bg-mist);
            border-radius: var(--radius-sm);
            padding: 10px 8px;
        }
        .feature-date .day {
            font-size: 22px;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
        }
        .feature-date .mon {
            font-size: 12px;
            color: var(--text-light);
        }
        .feature-content {
            flex: 1;
        }
        .feature-content h3 {
            font-size: 17px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 6px;
        }
        .feature-content p {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.7;
        }
        .feature-tag {
            display: inline-block;
            font-size: 12px;
            color: var(--accent);
            background: rgba(212, 168, 67, .1);
            border-radius: 20px;
            padding: 2px 10px;
            margin-left: 10px;
            vertical-align: middle;
        }

        /* ===== Notice ===== */
        .notice-box {
            display: flex;
            align-items: center;
            gap: 20px;
            background: #fff;
            border-left: 4px solid var(--accent);
            border-radius: var(--radius-md);
            padding: 24px 28px;
            box-shadow: var(--shadow-sm);
            max-width: 960px;
            margin: 0 auto;
        }
        .notice-box i {
            font-size: 30px;
            color: var(--accent);
            flex-shrink: 0;
        }
        .notice-box h3 {
            font-size: 17px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 6px;
        }
        .notice-box p {
            font-size: 14px;
            color: var(--text-light);
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, rgba(212, 168, 67, .1), rgba(212, 168, 67, .04)), url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            padding: clamp(56px, 6vw, 90px) 0;
        }
        .cta-box {
            background: #fff;
            border-radius: calc(var(--radius-lg) + 6px);
            padding: clamp(30px, 5vw, 56px);
            text-align: center;
            box-shadow: var(--shadow-lg);
            max-width: 820px;
            margin: 0 auto;
            border: 1px solid var(--border);
        }
        .cta-box h2 {
            font-size: clamp(24px, 3vw, 34px);
            font-weight: 800;
            color: var(--primary);
            margin-bottom: 10px;
        }
        .cta-box p {
            font-size: 15px;
            color: var(--text-light);
            margin-bottom: 28px;
        }
        .newsletter-form {
            display: flex;
            gap: 12px;
            max-width: 460px;
            margin: 0 auto;
            flex-wrap: wrap;
            justify-content: center;
        }
        .newsletter-input {
            flex: 1;
            min-width: 240px;
            padding: 13px 20px;
            border-radius: 40px;
            border: 1px solid var(--border);
            font-size: 14px;
            background: var(--bg-mist);
            transition: border .25s ease, box-shadow .25s ease;
        }
        .newsletter-input::placeholder { color: var(--text-light); }
        .newsletter-input:focus {
            outline: none;
            border-color: var(--accent);
            box-shadow: 0 0 0 4px rgba(212, 168, 67, .15);
            background: #fff;
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 840px;
            margin: 0 auto;
        }
        .faq-item {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            margin-bottom: 14px;
            overflow: hidden;
            transition: box-shadow .3s ease;
        }
        .faq-item:hover { box-shadow: var(--shadow-sm); }
        .faq-item summary {
            list-style: none;
            cursor: pointer;
            padding: 20px 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            font-size: 16px;
            font-weight: 600;
            color: var(--primary);
            transition: color .25s ease;
        }
        .faq-item summary::-webkit-details-marker { display: none; }
        .faq-item summary:hover { color: var(--accent); }
        .faq-item summary i {
            font-size: 18px;
            color: var(--accent);
            flex-shrink: 0;
            transition: transform .3s ease;
        }
        .faq-item[open] summary i { transform: rotate(45deg); }
        .faq-answer {
            padding: 0 24px 20px;
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.8;
            border-top: 1px dashed var(--border);
            margin: 0 24px 0;
            padding-left: 0;
            padding-right: 0;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--primary-dark);
            color: rgba(255, 255, 255, .72);
            padding-top: 64px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 44px;
            padding-bottom: 44px;
        }
        .footer-logo {
            font-size: 22px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 14px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .footer-logo i { color: var(--accent); }
        .footer-desc {
            font-size: 14px;
            line-height: 1.8;
            opacity: .75;
            max-width: 340px;
            margin-bottom: 20px;
        }
        .footer-social {
            display: flex;
            gap: 12px;
        }
        .footer-social a {
            width: 38px;
            height: 38px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(255, 255, 255, .08);
            color: rgba(255, 255, 255, .7);
            font-size: 15px;
            transition: background .3s ease, transform .3s ease, color .3s ease;
        }
        .footer-social a:hover {
            background: var(--accent);
            color: #fff;
            transform: translateY(-3px);
        }
        .footer-heading {
            font-size: 15px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 18px;
        }
        .footer-links {
            list-style: none;
        }
        .footer-links li {
            margin-bottom: 12px;
            font-size: 14px;
        }
        .footer-links a {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: rgba(255, 255, 255, .72);
            transition: color .25s ease, transform .25s ease;
        }
        .footer-links a i { font-size: 12px; color: var(--accent); }
        .footer-links a:hover { color: var(--accent-light); transform: translateX(4px); }
        .footer-links span { color: rgba(255, 255, 255, .6); }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, .08);
            padding: 20px 0;
        }
        .footer-bottom .container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
        }
        .footer-bottom span {
            font-size: 13px;
            opacity: .65;
        }

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

        @media (max-width: 768px) {
            .header-inner { flex-wrap: wrap; }
            .main-nav {
                position: fixed;
                top: var(--header-h);
                left: 0;
                right: 0;
                background: #fff;
                flex-direction: column;
                align-items: stretch;
                padding: 16px 24px;
                box-shadow: 0 10px 30px rgba(0, 0, 0, .08);
                transform: translateY(-200%);
                transition: transform .35s ease;
                margin-left: 0;
                border-top: 1px solid var(--border);
            }
            .main-nav.open {
                transform: translateY(0);
            }
            .nav-link {
                padding: 14px 18px;
                border-radius: var(--radius-sm);
                text-align: center;
            }
            .menu-toggle { display: flex; }
            .header-cta { display: none; }
            .hero { min-height: 420px; }
            .cards-grid, .topic-grid { grid-template-columns: 1fr; }
            .stats-grid { grid-template-columns: repeat(2, 1fr); }
            .feature-item { flex-direction: column; gap: 12px; }
            .feature-date { min-width: 100%; display: flex; align-items: center; gap: 8px; justify-content: center; }
            .footer-grid { grid-template-columns: 1fr; }
            .footer-bottom .container { flex-direction: column; text-align: center; }
            .newsletter-form { flex-direction: column; }
            .newsletter-input { width: 100%; }
        }

        @media (max-width: 520px) {
            .container { padding: 0 18px; }
            .hero-title { font-size: 30px; }
            .hero-actions { flex-direction: column; width: 100%; }
            .btn { width: 100%; }
            .stats-grid { grid-template-columns: 1fr; }
            .notice-box { flex-direction: column; text-align: center; }
            .footer-bottom .container { gap: 4px; }
            .section-head { margin-bottom: 32px; }
        }