/* roulang page: index */
:root {
    --primary: #0f2b4c;
    --primary-dark: #091c33;
    --primary-light: #1c436e;
    --accent: #d4af37;
    --accent-dark: #b8962e;
    --accent-soft: rgba(212, 175, 55, 0.12);
    --bg-soft: #f4f7fb;
    --bg-white: #ffffff;
    --bg-dark: #0a1728;
    --text-main: #1e2a38;
    --text-body: #3e4d5f;
    --text-weak: #6b7a8d;
    --border-light: #e8edf2;
    --radius-xl: 24px;
    --radius-lg: 18px;
    --radius-md: 12px;
    --radius-sm: 8px;
    --shadow-sm: 0 2px 10px rgba(15, 43, 76, 0.05);
    --shadow-md: 0 8px 28px rgba(15, 43, 76, 0.08);
    --shadow-lg: 0 18px 48px rgba(15, 43, 76, 0.12);
    --space-section: 100px;
    --space-section-md: 64px;
    --transition-fast: all 0.2s ease;
    --transition-smooth: all 0.35s cubic-bezier(0.25, 0.8, 0.25, 1);
}

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

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

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

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

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

a:hover {
    color: var(--accent-dark);
    text-decoration: none;
}

button,
input,
select,
textarea {
    font-family: inherit;
    font-size: 100%;
    line-height: 1.5;
    border-radius: var(--radius-sm);
}

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 32px;
}

/* ===== Header Nav ===== */
.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(232, 237, 242, 0.8);
    box-shadow: 0 4px 20px rgba(15, 43, 76, 0.04);
    transition: var(--transition-smooth);
}

.site-header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 76px;
}

.brand-logo {
    font-size: 20px;
    font-weight: 900;
    letter-spacing: 0.02em;
    color: var(--primary);
    display: flex;
    align-items: center;
    gap: 10px;
    line-height: 1.2;
}

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

.brand-logo span {
    font-weight: 300;
    color: var(--text-weak);
    font-size: 13px;
    margin-left: 4px;
}

.nav-list {
    display: flex;
    align-items: center;
    gap: 8px;
    list-style: none;
}

.nav-list a {
    display: inline-block;
    padding: 9px 18px;
    font-size: 15px;
    font-weight: 500;
    color: var(--text-body);
    border-radius: 999px;
    transition: var(--transition-fast);
    position: relative;
}

.nav-list a:hover {
    color: var(--primary);
    background: rgba(15, 43, 76, 0.05);
}

.nav-list a.active {
    color: var(--primary);
    background: var(--accent-soft);
    font-weight: 700;
}

.nav-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 22px;
    color: var(--primary);
    cursor: pointer;
    padding: 10px;
    border-radius: var(--radius-sm);
}

.nav-toggle:hover {
    background: rgba(15, 43, 76, 0.05);
}

/* ===== Hero ===== */
.hero {
    background: linear-gradient(120deg, rgba(9, 28, 51, 0.94) 0%, rgba(15, 43, 76, 0.82) 55%, rgba(20, 56, 92, 0.72) 100%),
        url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
    color: #ffffff;
    padding: 140px 0 120px;
    position: relative;
    overflow: hidden;
}

.hero .inner {
    max-width: 720px;
}

.hero .badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(255, 255, 255, 0.12);
    border: 1px solid rgba(255, 255, 255, 0.22);
    color: #ffffff;
    padding: 7px 16px;
    border-radius: 999px;
    font-size: 13px;
    font-weight: 500;
    letter-spacing: 0.04em;
    margin-bottom: 28px;
}

.hero h1 {
    font-size: 52px;
    font-weight: 900;
    line-height: 1.2;
    letter-spacing: -0.02em;
    color: #ffffff;
    margin-bottom: 24px;
}

.hero h1 .gold {
    color: var(--accent);
}

.hero p {
    font-size: 18px;
    line-height: 1.9;
    color: rgba(255, 255, 255, 0.85);
    margin-bottom: 40px;
}

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

.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 32px;
    border-radius: 999px;
    font-size: 16px;
    font-weight: 600;
    line-height: 1.4;
    border: none;
    cursor: pointer;
    transition: var(--transition-smooth);
    text-align: center;
    justify-content: center;
}

.btn i {
    font-size: 15px;
}

.btn-primary {
    background: var(--accent);
    color: var(--primary-dark);
    box-shadow: 0 6px 22px rgba(212, 175, 55, 0.35);
}

.btn-primary:hover {
    background: #e2c04d;
    color: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 10px 32px rgba(212, 175, 55, 0.45);
}

.btn-outline {
    background: transparent;
    color: #ffffff;
    border: 1.5px solid rgba(255, 255, 255, 0.4);
}

.btn-outline:hover {
    background: rgba(255, 255, 255, 0.1);
    color: #ffffff;
    border-color: rgba(255, 255, 255, 0.7);
    transform: translateY(-2px);
}

/* ===== Section ===== */
.section {
    padding: var(--space-section) 0;
}

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

.section-head {
    text-align: center;
    max-width: 680px;
    margin: 0 auto 64px;
}

.section-head .tag {
    display: inline-block;
    font-size: 14px;
    font-weight: 600;
    letter-spacing: 0.06em;
    color: var(--accent-dark);
    background: var(--accent-soft);
    padding: 6px 18px;
    border-radius: 999px;
    margin-bottom: 18px;
}

.section-head h2 {
    font-size: 36px;
    font-weight: 900;
    color: var(--primary);
    line-height: 1.3;
    margin-bottom: 14px;
}

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

/* ===== About ===== */
.about-grid {
    display: flex;
    gap: 60px;
    align-items: center;
}

.about-text {
    flex: 1 1 50%;
}

.about-text h3 {
    font-size: 28px;
    font-weight: 800;
    color: var(--primary);
    margin-bottom: 20px;
    line-height: 1.4;
}

.about-text p {
    font-size: 16px;
    line-height: 1.9;
    margin-bottom: 24px;
    color: var(--text-body);
}

.about-list {
    list-style: none;
    padding: 0;
    margin: 24px 0 0;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.about-list li {
    display: flex;
    align-items: flex-start;
    gap: 14px;
    font-size: 15px;
    color: var(--text-body);
}

.about-list li i {
    color: var(--accent);
    font-size: 18px;
    margin-top: 3px;
    background: var(--accent-soft);
    border-radius: 50%;
    width: 32px;
    height: 32px;
    flex: 0 0 32px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.about-visual {
    flex: 1 1 50%;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    position: relative;
}

.visual-card {
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-light);
    transition: var(--transition-smooth);
    padding: 14px;
}

.visual-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.visual-card img {
    border-radius: var(--radius-md);
    margin-bottom: 12px;
    aspect-ratio: 4 / 3;
    object-fit: cover;
}

.visual-card h4 {
    font-size: 15px;
    font-weight: 700;
    color: var(--primary);
    text-align: center;
}

.visual-card p {
    font-size: 13px;
    color: var(--text-weak);
    text-align: center;
    margin: 4px 0 0;
}

/* ===== Category ===== */
.cat-grid {
    display: flex;
    gap: 32px;
}

.cat-card {
    flex: 1;
    border-radius: var(--radius-xl);
    overflow: hidden;
    background: var(--bg-white);
    border: 1px solid var(--border-light);
    box-shadow: var(--shadow-sm);
    transition: var(--transition-smooth);
}

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

.cat-card .cat-cover {
    position: relative;
    height: 240px;
    overflow: hidden;
}

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

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

.cat-card .cat-cover::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent 30%, rgba(9, 28, 51, 0.55) 100%);
}

.cat-card .cat-body {
    padding: 28px 30px 32px;
}

.cat-card .cat-body h3 {
    font-size: 22px;
    font-weight: 800;
    color: var(--primary);
    margin-bottom: 10px;
}

.cat-card .cat-body p {
    font-size: 14px;
    color: var(--text-weak);
    line-height: 1.75;
    margin-bottom: 20px;
}

.cat-card .cat-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-top: 1px solid var(--border-light);
    padding-top: 18px;
}

.cat-card .cat-meta span {
    font-size: 13px;
    color: var(--text-weak);
}

.cat-card .cat-link {
    font-weight: 700;
    font-size: 14px;
    color: var(--accent-dark);
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

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

/* ===== Stats ===== */
.stats-wrap {
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
    border-radius: var(--radius-xl);
    padding: 60px 64px;
    color: #ffffff;
    position: relative;
    overflow: hidden;
}

.stats-wrap::before {
    content: '';
    position: absolute;
    top: -60px;
    right: -60px;
    width: 220px;
    height: 220px;
    background: rgba(212, 175, 55, 0.12);
    border-radius: 50%;
}

.stats-grid {
    display: flex;
    justify-content: space-between;
    gap: 32px;
    flex-wrap: wrap;
}

.stat-item {
    flex: 1 1 160px;
    text-align: center;
}

.stat-item .num {
    font-size: 46px;
    font-weight: 900;
    color: var(--accent);
    line-height: 1.2;
    margin-bottom: 8px;
}

.stat-item .label {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.75);
}

/* ===== Posts ===== */
.post-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 28px;
}

.post-card {
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    padding: 28px;
    border: 1px solid var(--border-light);
    box-shadow: var(--shadow-sm);
    transition: var(--transition-smooth);
    height: 100%;
    display: flex;
    flex-direction: column;
    position: relative;
    overflow: hidden;
}

.post-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--accent), var(--accent-dark));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s ease;
}

.post-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

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

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

.badge {
    display: inline-block;
    background: var(--accent-soft);
    color: var(--accent-dark);
    font-size: 12px;
    font-weight: 700;
    padding: 4px 14px;
    border-radius: 999px;
    letter-spacing: 0.03em;
}

.post-date {
    font-size: 13px;
    color: var(--text-weak);
}

.post-card h3 {
    font-size: 17px;
    font-weight: 700;
    line-height: 1.5;
    margin-bottom: 10px;
    color: var(--primary);
}

.post-card h3 a {
    color: inherit;
}

.post-card h3 a:hover {
    color: var(--accent-dark);
}

.post-card p {
    font-size: 14px;
    color: var(--text-weak);
    line-height: 1.8;
    flex: 1;
    margin-bottom: 18px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.post-link {
    font-size: 14px;
    font-weight: 700;
    color: var(--primary);
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

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

.post-link i {
    transition: transform 0.2s ease;
}

.empty-tip {
    text-align: center;
    padding: 60px 20px;
    font-size: 16px;
    color: var(--text-weak);
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    border: 1px dashed var(--border-light);
}

/* ===== Feature ===== */
.feature-row {
    display: flex;
    align-items: center;
    gap: 64px;
    margin-bottom: 80px;
}

.feature-row:last-child {
    margin-bottom: 0;
}

.feature-row .feature-image {
    flex: 1 1 48%;
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.feature-row .feature-image img {
    width: 100%;
    aspect-ratio: 4 / 3;
    object-fit: cover;
    transition: transform 0.6s ease;
}

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

.feature-row .feature-content {
    flex: 1 1 52%;
}

.feature-row .feature-content .tag {
    color: var(--accent-dark);
    font-weight: 700;
    font-size: 14px;
    letter-spacing: 0.05em;
    margin-bottom: 12px;
}

.feature-row .feature-content h3 {
    font-size: 30px;
    font-weight: 800;
    color: var(--primary);
    margin-bottom: 18px;
    line-height: 1.3;
}

.feature-row .feature-content p {
    font-size: 16px;
    line-height: 1.9;
    color: var(--text-body);
    margin-bottom: 24px;
}

.feature-points {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.feature-points li {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 15px;
    color: var(--text-body);
}

.feature-points li i {
    color: var(--accent);
}

/* ===== FAQ ===== */
.faq-list {
    max-width: 820px;
    margin: 0 auto;
}

.faq-item {
    background: var(--bg-white);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    margin-bottom: 16px;
    overflow: hidden;
    transition: var(--transition-smooth);
}

.faq-item:hover {
    border-color: rgba(212, 175, 55, 0.4);
    box-shadow: var(--shadow-sm);
}

.faq-question {
    padding: 24px 28px;
    font-size: 16px;
    font-weight: 600;
    color: var(--primary);
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    user-select: none;
    background: none;
    border: none;
    text-align: left;
    width: 100%;
}

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

.faq-item.active .faq-question i {
    transform: rotate(45deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease;
}

.faq-answer-inner {
    padding: 0 28px 24px;
    font-size: 15px;
    line-height: 1.85;
    color: var(--text-body);
}

/* ===== CTA ===== */
.cta-section {
    background: linear-gradient(135deg, var(--primary-dark), var(--primary-light));
    padding: 90px 0;
    color: #ffffff;
    position: relative;
    overflow: hidden;
}

.cta-section::before {
    content: '';
    position: absolute;
    bottom: -100px;
    left: -50px;
    width: 320px;
    height: 320px;
    border-radius: 50%;
    background: rgba(212, 175, 55, 0.08);
}

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

.cta-inner h2 {
    font-size: 36px;
    font-weight: 900;
    margin-bottom: 16px;
    color: #ffffff;
}

.cta-inner p {
    font-size: 16px;
    color: rgba(255, 255, 255, 0.75);
    margin-bottom: 36px;
    line-height: 1.8;
}

.cta-inner .btn-primary {
    font-size: 17px;
    padding: 16px 44px;
}

/* ===== Footer ===== */
.site-footer {
    background: var(--bg-dark);
    color: rgba(255, 255, 255, 0.72);
    padding: 64px 0 0;
}

.footer-top {
    display: flex;
    gap: 48px;
    flex-wrap: wrap;
    margin-bottom: 48px;
}

.footer-brand {
    flex: 1 1 320px;
}

.footer-brand .brand-logo {
    color: #ffffff;
    margin-bottom: 16px;
    font-size: 22px;
}

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

.footer-brand p {
    font-size: 14px;
    line-height: 1.8;
    color: rgba(255, 255, 255, 0.6);
    margin-bottom: 20px;
}

.footer-col {
    flex: 1 1 180px;
}

.footer-col h4 {
    font-size: 16px;
    font-weight: 700;
    color: #ffffff;
    margin-bottom: 18px;
    padding-bottom: 10px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

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

.footer-col a {
    color: rgba(255, 255, 255, 0.6);
    font-size: 14px;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.footer-col a i {
    font-size: 12px;
    color: var(--accent);
}

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

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    padding: 24px 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
    flex-wrap: wrap;
    font-size: 13px;
    color: rgba(255, 255, 255, 0.45);
}

.footer-bottom a {
    color: rgba(255, 255, 255, 0.6);
}

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

/* ===== Responsive ===== */
@media screen and (max-width: 1024px) {
    .hero h1 {
        font-size: 42px;
    }

    .about-grid {
        flex-direction: column;
        gap: 40px;
    }

    .feature-row {
        flex-direction: column;
        gap: 36px;
    }

    .feature-row .feature-image {
        flex: auto;
        width: 100%;
    }

    .feature-row .feature-content {
        flex: auto;
    }

    .stats-wrap {
        padding: 48px 32px;
    }
}

@media screen and (max-width: 768px) {
    .site-header .container {
        height: 64px;
    }

    .nav-toggle {
        display: block;
    }

    .nav-list {
        display: none;
        position: absolute;
        top: 64px;
        left: 0;
        right: 0;
        background: var(--bg-white);
        flex-direction: column;
        align-items: flex-start;
        padding: 20px 32px 28px;
        border-bottom: 1px solid var(--border-light);
        box-shadow: 0 16px 40px rgba(15, 43, 76, 0.1);
        gap: 6px;
    }

    .nav-list.open {
        display: flex;
    }

    .nav-list a {
        display: block;
        width: 100%;
        padding: 12px 16px;
        border-radius: var(--radius-md);
    }

    .nav-list a:hover {
        background: rgba(15, 43, 76, 0.03);
    }

    .hero {
        padding: 100px 0 80px;
    }

    .hero h1 {
        font-size: 34px;
    }

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

    .section {
        padding: 64px 0;
    }

    .section-head h2 {
        font-size: 28px;
    }

    .cat-grid {
        flex-direction: column;
    }

    .stats-grid {
        justify-content: center;
    }

    .stat-item {
        flex: 1 1 130px;
    }

    .stat-item .num {
        font-size: 36px;
    }

    .post-grid {
        gap: 20px;
    }

    .cta-inner h2 {
        font-size: 28px;
    }

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

@media screen and (max-width: 520px) {
    .container {
        padding: 0 20px;
    }

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

    .brand-logo span {
        font-size: 11px;
    }

    .hero h1 {
        font-size: 28px;
    }

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

    .btn-group {
        flex-direction: column;
    }

    .btn {
        width: 100%;
    }

    .about-visual {
        grid-template-columns: 1fr;
    }

    .stats-wrap {
        padding: 40px 20px;
    }

    .feature-row .feature-content h3 {
        font-size: 24px;
    }

    .faq-question {
        padding: 20px;
        font-size: 15px;
    }

    .faq-answer-inner {
        padding: 0 20px 20px;
    }

    .cta-inner h2 {
        font-size: 24px;
    }

    .footer-bottom {
        justify-content: center;
        text-align: center;
    }
}

:focus {
    outline: 2px solid rgba(212, 175, 55, 0.6);
    outline-offset: 2px;
}

::-moz-focus-inner {
    border: 0;
}

/* roulang page: article */
/* ========== 设计变量 ========== */
        :root {
            --color-primary: #8a6d3b;
            --color-primary-dark: #6d5529;
            --color-primary-light: #c4a265;
            --color-secondary: #2c3e50;
            --color-accent: #d4a843;
            --color-bg: #f7f4ef;
            --color-bg-deep: #1e1a14;
            --color-bg-light: #fdfcf9;
            --color-text: #2d2a24;
            --color-text-weak: #7a736a;
            --color-text-light: #b5ada0;
            --color-border: #e5dccf;
            --color-white: #ffffff;
            --radius: 16px;
            --radius-sm: 10px;
            --radius-pill: 50px;
            --shadow-sm: 0 2px 12px rgba(45, 42, 36, 0.06);
            --shadow-md: 0 8px 30px rgba(45, 42, 36, 0.10);
            --shadow-lg: 0 16px 50px rgba(45, 42, 36, 0.16);
            --transition: ease cubic-bezier(0.25, 0.46, 0.45, 0.94);
            --space-xs: 8px;
            --space-sm: 16px;
            --space-md: 32px;
            --space-lg: 64px;
            --space-xl: 96px;
        }

        /* ========== 基础 Reset ========== */
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            line-height: 1.7;
            color: var(--color-text);
            background: var(--color-bg);
            overflow-x: hidden;
        }
        a { color: inherit; text-decoration: none; transition: color 0.25s var(--transition); }
        img { max-width: 100%; height: auto; display: block; }
        button { font-family: inherit; border: none; background: none; cursor: pointer; }
        input, textarea { font-family: inherit; }
        ul, ol { list-style: none; }
        .container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

        /* ========== 导航栏 ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(253, 252, 249, 0.96);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--color-border);
            transition: box-shadow 0.3s var(--transition);
        }
        .site-header.scrolled { box-shadow: var(--shadow-md); }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 76px;
        }
        .brand-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 24px;
            font-weight: 800;
            color: var(--color-primary);
            letter-spacing: 1px;
            flex-shrink: 0;
        }
        .brand-logo i { font-size: 28px; color: var(--color-accent); }
        .brand-logo span {
            font-size: 12px;
            font-weight: 400;
            color: var(--color-text-weak);
            background: rgba(212, 168, 67, 0.12);
            padding: 2px 10px;
            border-radius: 20px;
            margin-left: 4px;
        }
        .nav-toggle { display: none; font-size: 22px; color: var(--color-text); padding: 8px; }
        .site-nav { display: flex; align-items: center; }
        .nav-list { display: flex; gap: 4px; list-style: none; }
        .nav-list li { margin: 0; }
        .nav-list a {
            display: inline-flex;
            align-items: center;
            padding: 8px 20px;
            border-radius: var(--radius-pill);
            font-size: 15px;
            font-weight: 500;
            color: var(--color-text);
            transition: all 0.3s var(--transition);
            position: relative;
        }
        .nav-list a:hover { background: rgba(138, 109, 59, 0.08); color: var(--color-primary); }
        .nav-list a.active {
            background: var(--color-primary);
            color: var(--color-white);
            font-weight: 600;
            box-shadow: 0 4px 15px rgba(138, 109, 59, 0.3);
        }
        .nav-list a.active:hover { background: var(--color-primary-dark); color: var(--color-white); }

        /* ========== 页内 Banner ========== */
        .page-banner {
            position: relative;
            padding: 80px 0 64px;
            background: linear-gradient(135deg, rgba(30, 26, 20, 0.92), rgba(70, 55, 35, 0.85)), url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            color: var(--color-white);
            text-align: center;
        }
        .page-banner::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--color-primary), var(--color-accent), var(--color-primary));
        }
        .page-banner .banner-inner { position: relative; z-index: 2; }
        .page-banner h1 {
            font-size: 42px;
            font-weight: 800;
            margin-bottom: 12px;
            letter-spacing: 2px;
            line-height: 1.3;
        }
        .page-banner p { max-width: 720px; margin: 0 auto; font-size: 16px; color: rgba(255,255,255,0.85); }
        .banner-crumbs {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            margin-top: 20px;
            padding: 8px 20px;
            background: rgba(255,255,255,0.12);
            border-radius: var(--radius-pill);
            font-size: 13px;
            backdrop-filter: blur(8px);
        }
        .banner-crumbs a { color: rgba(255,255,255,0.85); }
        .banner-crumbs a:hover { color: var(--color-accent); }
        .banner-crumbs .sep { opacity: 0.5; }

        /* ========== 文章详情主区域 ========== */
        .article-main-wrapper { padding: 64px 0 80px; }
        .article-layout {
            display: grid;
            grid-template-columns: minmax(0, 1fr) 320px;
            gap: 48px;
            align-items: start;
        }
        .article-content-card {
            background: var(--color-bg-light);
            border: 1px solid var(--color-border);
            border-radius: var(--radius);
            padding: 48px;
            box-shadow: var(--shadow-sm);
        }
        .article-header {
            margin-bottom: 36px;
            padding-bottom: 28px;
            border-bottom: 1px solid var(--color-border);
        }
        .article-meta-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            margin-bottom: 18px;
            align-items: center;
        }
        .article-cat-badge {
            display: inline-block;
            padding: 5px 16px;
            background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
            color: var(--color-white);
            font-size: 13px;
            font-weight: 600;
            border-radius: var(--radius-pill);
        }
        .article-date {
            font-size: 14px;
            color: var(--color-text-weak);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .article-title {
            font-size: 32px;
            font-weight: 800;
            line-height: 1.35;
            color: var(--color-text);
            margin-bottom: 12px;
        }
        .article-desc {
            font-size: 15px;
            color: var(--color-text-weak);
            line-height: 1.8;
            margin-top: 12px;
        }
        .article-body {
            font-size: 16px;
            line-height: 2;
            color: #3d3833;
        }
        .article-body p { margin-bottom: 22px; }
        .article-body h2 { font-size: 24px; font-weight: 700; margin: 36px 0 16px; color: var(--color-text); }
        .article-body h3 { font-size: 20px; font-weight: 700; margin: 28px 0 12px; color: var(--color-text); }
        .article-body h4 { font-size: 17px; font-weight: 700; margin: 24px 0 10px; color: var(--color-text); }
        .article-body ul { margin: 16px 0 24px; padding-left: 0; list-style: none; }
        .article-body ul li { position: relative; padding-left: 24px; margin-bottom: 10px; }
        .article-body ul li::before {
            content: '';
            position: absolute;
            left: 0;
            top: 12px;
            width: 10px;
            height: 10px;
            border-radius: 3px;
            background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
        }
        .article-body ol { margin: 16px 0 24px; padding-left: 20px; list-style: decimal; }
        .article-body ol li { margin-bottom: 10px; padding-left: 6px; }
        .article-body blockquote {
            margin: 28px 0;
            padding: 20px 28px;
            background: rgba(138, 109, 59, 0.06);
            border-left: 4px solid var(--color-primary);
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            color: var(--color-text-weak);
            font-style: italic;
        }
        .article-body img { border-radius: var(--radius-sm); margin: 24px 0; box-shadow: var(--shadow-sm); }
        .article-body a { color: var(--color-primary); text-decoration: underline; text-underline-offset: 3px; }
        .article-body a:hover { color: var(--color-primary-dark); }

        .article-tags-actions {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            padding-top: 28px;
            margin-top: 36px;
            border-top: 1px solid var(--color-border);
            gap: 16px;
        }
        .article-keywords {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .keyword-tag {
            display: inline-block;
            padding: 4px 14px;
            background: rgba(138, 109, 59, 0.08);
            border-radius: var(--radius-pill);
            font-size: 13px;
            color: var(--color-primary-dark);
            transition: all 0.25s var(--transition);
        }
        .keyword-tag:hover { background: var(--color-primary); color: var(--color-white); }
        .share-actions { display: flex; gap: 8px; }
        .share-btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(138, 109, 59, 0.08);
            color: var(--color-primary-dark);
            font-size: 15px;
            transition: all 0.3s var(--transition);
        }
        .share-btn:hover { background: var(--color-primary); color: var(--color-white); transform: translateY(-2px); box-shadow: var(--shadow-sm); }

        /* ========== 侧边栏 ========== */
        .article-sidebar { display: flex; flex-direction: column; gap: 32px; position: sticky; top: 100px; }
        .sidebar-card {
            background: var(--color-bg-light);
            border: 1px solid var(--color-border);
            border-radius: var(--radius);
            padding: 28px;
            box-shadow: var(--shadow-sm);
        }
        .sidebar-card h3 {
            font-size: 17px;
            font-weight: 700;
            color: var(--color-text);
            margin-bottom: 20px;
            padding-bottom: 12px;
            border-bottom: 2px solid var(--color-primary-light);
            position: relative;
        }
        .sidebar-card h3::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 44px;
            height: 2px;
            background: var(--color-primary);
        }
        .sidebar-articles li {
            padding: 12px 0;
            border-bottom: 1px solid rgba(229, 220, 207, 0.6);
        }
        .sidebar-articles li:last-child { border-bottom: none; }
        .sidebar-articles a { display: block; font-size: 14px; font-weight: 500; color: var(--color-text); transition: color 0.25s; }
        .sidebar-articles a:hover { color: var(--color-primary); }
        .sidebar-articles .side-date {
            display: block;
            font-size: 12px;
            color: var(--color-text-weak);
            margin-top: 4px;
        }
        .sidebar-cta {
            background: linear-gradient(145deg, rgba(30, 26, 20, 0.97), rgba(70, 55, 35, 0.92)), url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            color: var(--color-white);
            border: none;
            position: relative;
            overflow: hidden;
        }
        .sidebar-cta h3 { color: var(--color-white); border-bottom-color: rgba(255,255,255,0.2); }
        .sidebar-cta h3::after { background: var(--color-accent); }
        .sidebar-cta p { font-size: 14px; color: rgba(255,255,255,0.8); margin-bottom: 18px; }
        .cta-btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 22px;
            background: var(--color-accent);
            color: var(--color-text);
            border-radius: var(--radius-pill);
            font-size: 14px;
            font-weight: 600;
            transition: all 0.3s var(--transition);
            box-shadow: 0 4px 16px rgba(212, 168, 67, 0.35);
        }
        .cta-btn:hover { background: var(--color-white); color: var(--color-primary); transform: translateY(-2px); }

        /* ========== 相关推荐 / 导航 ========== */
        .article-nav-wrap { margin-top: 40px; padding: 0 8px; }
        .article-nav {
            display: flex;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
        }
        .nav-prev, .nav-next {
            flex: 1;
            min-width: 240px;
            padding: 16px 20px;
            background: var(--color-bg-light);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-sm);
            transition: all 0.3s var(--transition);
        }
        .nav-prev:hover, .nav-next:hover { border-color: var(--color-primary-light); box-shadow: var(--shadow-sm); }
        .nav-prev .nav-label, .nav-next .nav-label { font-size: 12px; color: var(--color-text-weak); display: block; margin-bottom: 4px; }
        .nav-prev .nav-title, .nav-next .nav-title { font-size: 15px; font-weight: 600; color: var(--color-text); }
        .nav-next { text-align: right; }
        .back-home {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            margin-top: 24px;
            padding: 8px 22px;
            background: rgba(138, 109, 59, 0.08);
            color: var(--color-primary-dark);
            border-radius: var(--radius-pill);
            font-size: 14px;
            font-weight: 500;
            transition: all 0.3s var(--transition);
        }
        .back-home:hover { background: var(--color-primary); color: var(--color-white); }

        /* ========== 未找到文章 ========== */
        .not-found-wrap {
            text-align: center;
            padding: 100px 0;
            background: var(--color-bg-light);
            border-radius: var(--radius);
            border: 1px solid var(--color-border);
            box-shadow: var(--shadow-sm);
            margin: 64px 0;
        }
        .not-found-wrap .nf-icon {
            font-size: 64px;
            color: var(--color-primary-light);
            margin-bottom: 24px;
        }
        .not-found-wrap h2 { font-size: 30px; font-weight: 800; margin-bottom: 12px; }
        .not-found-wrap p { color: var(--color-text-weak); margin-bottom: 28px; max-width: 440px; margin-left: auto; margin-right: auto; }

        /* ========== CTA 区域 ========== */
        .site-cta-section {
            background: linear-gradient(145deg, rgba(30, 26, 20, 0.95), rgba(60, 48, 30, 0.88)), url('/assets/images/backpic/back-3.png') center/cover no-repeat;
            padding: 80px 0;
            text-align: center;
            position: relative;
        }
        .site-cta-section .cta-title { font-size: 34px; font-weight: 800; color: var(--color-white); margin-bottom: 14px; }
        .site-cta-section .cta-subtitle { font-size: 17px; color: rgba(255,255,255,0.8); max-width: 640px; margin: 0 auto 36px; }
        .cta-button-group { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
        .cta-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 34px;
            background: var(--color-accent);
            color: var(--color-text);
            border-radius: var(--radius-pill);
            font-size: 15px;
            font-weight: 700;
            letter-spacing: 1px;
            transition: all 0.3s var(--transition);
            box-shadow: 0 6px 24px rgba(212, 168, 67, 0.3);
        }
        .cta-primary:hover { background: var(--color-white); transform: translateY(-3px); box-shadow: 0 10px 30px rgba(212, 168, 67, 0.4); }
        .cta-ghost {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 34px;
            border: 2px solid rgba(255,255,255,0.4);
            color: var(--color-white);
            border-radius: var(--radius-pill);
            font-size: 15px;
            font-weight: 600;
            transition: all 0.3s var(--transition);
        }
        .cta-ghost:hover { border-color: var(--color-accent); color: var(--color-accent); transform: translateY(-3px); }

        /* ========== 页脚 ========== */
        .site-footer {
            background: var(--color-bg-deep);
            color: rgba(255,255,255,0.7);
            padding: 60px 0 30px;
        }
        .footer-top {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.4fr;
            gap: 48px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255,255,255,0.08);
        }
        .footer-brand .brand-logo { color: var(--color-white); margin-bottom: 14px; }
        .footer-brand p { font-size: 14px; line-height: 1.8; color: rgba(255,255,255,0.55); margin-top: 14px; max-width: 320px; }
        .footer-col h4 {
            font-size: 16px;
            font-weight: 700;
            color: var(--color-white);
            margin-bottom: 18px;
            position: relative;
            padding-bottom: 10px;
        }
        .footer-col h4::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 28px;
            height: 2px;
            background: var(--color-accent);
        }
        .footer-col ul li { margin-bottom: 10px; font-size: 14px; }
        .footer-col ul li a { color: rgba(255,255,255,0.55); transition: color 0.25s, padding-left 0.25s; }
        .footer-col ul li a:hover { color: var(--color-accent); padding-left: 4px; }
        .footer-col ul li i { font-size: 12px; margin-right: 6px; color: var(--color-primary-light); }
        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            padding-top: 24px;
            font-size: 13px;
            color: rgba(255,255,255,0.35);
        }
        .footer-bottom a { color: rgba(255,255,255,0.35); margin: 0 6px; transition: color 0.25s; }
        .footer-bottom a:hover { color: var(--color-accent); }

        /* ========== 响应式 ========== */
        @media screen and (max-width: 1024px) {
            .article-layout { grid-template-columns: 1fr; gap: 36px; }
            .article-sidebar { position: static; flex-direction: row; flex-wrap: wrap; gap: 20px; }
            .sidebar-card { flex: 1; min-width: 260px; }
            .footer-top { grid-template-columns: 1fr 1fr; gap: 32px; }
        }
        @media screen and (max-width: 768px) {
            .container { padding: 0 16px; }
            .site-header .container { height: 64px; }
            .brand-logo { font-size: 20px; }
            .brand-logo span { display: none; }
            .nav-toggle { display: block; z-index: 110; }
            .site-nav {
                position: fixed;
                top: 0;
                right: 0;
                bottom: 0;
                width: 280px;
                background: var(--color-bg-light);
                box-shadow: -8px 0 30px rgba(0,0,0,0.12);
                transform: translateX(100%);
                transition: transform 0.4s var(--transition);
                padding: 80px 24px 24px;
                z-index: 105;
                border-radius: 24px 0 0 24px;
            }
            .site-nav.active { transform: translateX(0); }
            .nav-list { flex-direction: column; gap: 4px; }
            .nav-list a { display: block; width: 100%; padding: 12px 16px; font-size: 16px; }
            .page-banner { padding: 60px 0 40px; }
            .page-banner h1 { font-size: 28px; }
            .article-content-card { padding: 24px; }
            .article-title { font-size: 24px; }
            .article-body { font-size: 15px; line-height: 1.9; }
            .site-cta-section .cta-title { font-size: 26px; }
            .footer-top { grid-template-columns: 1fr; gap: 28px; }
            .footer-bottom { flex-direction: column; gap: 10px; text-align: center; }
            .article-nav { flex-direction: column; }
            .nav-next { text-align: left; }
        }
        @media screen and (max-width: 520px) {
            .brand-logo { font-size: 18px; }
            .brand-logo i { font-size: 22px; }
            .page-banner h1 { font-size: 24px; }
            .article-content-card { padding: 20px 16px; }
            .article-title { font-size: 21px; }
            .banner-crumbs { font-size: 12px; padding: 6px 14px; }
            .cta-primary, .cta-ghost { padding: 12px 24px; font-size: 14px; }
            .site-cta-section { padding: 56px 0; }
        }

/* roulang page: category1 */
:root {
            --primary: #0b1f3a;
            --primary-light: #16304f;
            --primary-dark: #070f1d;
            --accent: #c9a962;
            --accent-light: #ddc27e;
            --accent-dark: #a8873f;
            --bg: #f3f5f9;
            --bg-white: #ffffff;
            --text: #152238;
            --text-soft: #4a5a70;
            --text-light: #7b8a9e;
            --border: #e3e8ef;
            --radius: 16px;
            --radius-sm: 10px;
            --shadow-sm: 0 2px 10px rgba(11, 31, 58, 0.06);
            --shadow-md: 0 6px 24px rgba(11, 31, 58, 0.09);
            --shadow-lg: 0 16px 40px rgba(11, 31, 58, 0.14);
            --space-section: 80px;
            --transition: all 0.3s ease;
        }

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

        html {
            scroll-behavior: smooth;
        }

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

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

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

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

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

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

        /* ===== Header ===== */
        .site-header {
            background: rgba(11, 31, 58, 0.96);
            backdrop-filter: blur(14px);
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: 0 4px 20px rgba(7, 15, 29, 0.28);
            border-bottom: 1px solid rgba(201, 169, 98, 0.2);
        }

        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            min-height: 72px;
            position: relative;
        }

        .brand-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 22px;
            font-weight: 800;
            color: #ffffff;
            letter-spacing: 0.5px;
            transition: var(--transition);
        }

        .brand-logo i {
            color: var(--accent);
            font-size: 24px;
        }

        .brand-logo span {
            display: none;
        }

        .site-header .brand-logo:hover {
            color: var(--accent-light);
        }

        .nav-toggle {
            display: none;
            background: none;
            font-size: 24px;
            color: #fff;
            cursor: pointer;
            width: 44px;
            height: 44px;
            border-radius: 10px;
            border: 1px solid rgba(255, 255, 255, 0.12);
            align-items: center;
            justify-content: center;
            transition: var(--transition);
        }

        .nav-toggle:hover {
            background: rgba(255, 255, 255, 0.08);
            border-color: var(--accent);
        }

        .site-nav .nav-list {
            list-style: none;
            display: flex;
            gap: 6px;
            margin: 0;
        }

        .site-nav .nav-list li a {
            display: block;
            padding: 10px 18px;
            border-radius: 30px;
            font-size: 15px;
            font-weight: 600;
            color: rgba(255, 255, 255, 0.8);
            transition: var(--transition);
            border: 1px solid transparent;
        }

        .site-nav .nav-list li a:hover {
            color: var(--accent-light);
            background: rgba(255, 255, 255, 0.06);
        }

        .site-nav .nav-list li a.active {
            color: #fff;
            background: linear-gradient(135deg, rgba(201, 169, 98, 0.9), rgba(168, 135, 63, 0.75));
            border-color: rgba(201, 169, 98, 0.3);
            box-shadow: 0 4px 14px rgba(201, 169, 98, 0.35);
        }

        /* ===== Page Hero ===== */
        .page-hero {
            position: relative;
            min-height: 360px;
            display: flex;
            align-items: center;
            background: linear-gradient(110deg, rgba(7, 15, 29, 0.93), rgba(22, 48, 79, 0.82)), url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            color: #fff;
            padding: 70px 0;
        }

        .page-hero .hero-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(201, 169, 98, 0.16);
            border: 1px solid rgba(201, 169, 98, 0.4);
            color: var(--accent-light);
            font-size: 13px;
            font-weight: 700;
            letter-spacing: 3px;
            padding: 8px 18px;
            border-radius: 30px;
            margin-bottom: 18px;
            text-transform: uppercase;
        }

        .page-hero h1 {
            font-size: 42px;
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 14px;
            letter-spacing: 1px;
        }

        .page-hero h1 span {
            color: var(--accent);
        }

        .page-hero p {
            font-size: 17px;
            color: rgba(255, 255, 255, 0.82);
            max-width: 560px;
            margin-bottom: 28px;
        }

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

        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 26px;
            border-radius: 50px;
            font-size: 15px;
            font-weight: 700;
            cursor: pointer;
            transition: var(--transition);
            border: 1.5px solid transparent;
        }

        .btn-primary {
            background: linear-gradient(135deg, var(--accent), var(--accent-dark));
            color: var(--primary-dark);
            border-color: transparent;
            box-shadow: 0 6px 18px rgba(201, 169, 98, 0.4);
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 28px rgba(201, 169, 98, 0.55);
            color: var(--primary-dark);
        }

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

        .btn-ghost:hover {
            border-color: var(--accent);
            color: var(--accent-light);
            background: rgba(201, 169, 98, 0.08);
            transform: translateY(-2px);
        }

        .hero-meta {
            display: flex;
            gap: 28px;
            flex-wrap: wrap;
            margin-top: 34px;
            padding-top: 24px;
            border-top: 1px solid rgba(255, 255, 255, 0.14);
        }

        .hero-meta span {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.65);
        }

        .hero-meta strong {
            color: var(--accent-light);
            font-size: 20px;
            margin-right: 4px;
            font-weight: 800;
        }

        /* ===== Section ===== */
        .section-padding {
            padding: var(--space-section) 0;
        }

        .section-head {
            text-align: center;
            max-width: 640px;
            margin: 0 auto 42px;
        }

        .section-overline {
            display: inline-block;
            color: var(--accent-dark);
            font-size: 13px;
            font-weight: 700;
            letter-spacing: 3px;
            text-transform: uppercase;
            margin-bottom: 8px;
        }

        .section-head h2 {
            font-size: 34px;
            font-weight: 800;
            color: var(--text);
            line-height: 1.3;
            margin-bottom: 10px;
        }

        .section-head p {
            color: var(--text-soft);
            font-size: 16px;
        }

        /* ===== News Section ===== */
        .news-section {
            background: var(--bg);
            padding: var(--space-section) 0;
        }

        .filter-tabs {
            display: flex;
            justify-content: center;
            gap: 10px;
            flex-wrap: wrap;
            margin-bottom: 36px;
        }

        .filter-btn {
            padding: 10px 22px;
            border-radius: 30px;
            background: var(--bg-white);
            color: var(--text-soft);
            font-size: 14px;
            font-weight: 600;
            border: 1px solid var(--border);
            cursor: pointer;
            transition: var(--transition);
        }

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

        .filter-btn.active {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            box-shadow: 0 6px 18px rgba(11, 31, 58, 0.3);
        }

        .news-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 26px;
        }

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

        .news-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: rgba(201, 169, 98, 0.4);
        }

        .news-card-image {
            position: relative;
            height: 190px;
            overflow: hidden;
            background: var(--primary-light);
        }

        .news-card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.6s ease;
        }

        .news-card:hover .news-card-image img {
            transform: scale(1.06);
        }

        .news-card-image::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(11, 31, 58, 0.18), transparent);
        }

        .news-tag {
            position: absolute;
            top: 14px;
            left: 14px;
            z-index: 2;
            background: rgba(11, 31, 58, 0.88);
            color: var(--accent-light);
            font-size: 12px;
            font-weight: 700;
            padding: 5px 14px;
            border-radius: 20px;
            backdrop-filter: blur(8px);
            border: 1px solid rgba(201, 169, 98, 0.3);
        }

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

        .news-card-meta {
            display: flex;
            gap: 16px;
            font-size: 13px;
            color: var(--text-light);
            margin-bottom: 10px;
        }

        .news-card-meta i {
            margin-right: 4px;
            color: var(--accent-dark);
        }

        .news-card-body h3 {
            font-size: 18px;
            font-weight: 700;
            line-height: 1.4;
            margin-bottom: 10px;
            color: var(--text);
            transition: var(--transition);
        }

        .news-card-body h3 a:hover {
            color: var(--accent-dark);
        }

        .news-card-body p {
            font-size: 14px;
            color: var(--text-soft);
            line-height: 1.65;
            margin-bottom: 16px;
            flex: 1;
        }

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

        .read-more:hover {
            color: var(--accent-dark);
            gap: 10px;
        }

        /* ===== Announcement ===== */
        .announcement-section {
            background: linear-gradient(120deg, rgba(7, 15, 29, 0.95), rgba(22, 48, 79, 0.87)), url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            color: #fff;
            padding: var(--space-section) 0;
            position: relative;
        }

        .announcement-section .section-head h2 {
            color: #fff;
        }

        .announcement-section .section-head p {
            color: rgba(255, 255, 255, 0.7);
        }

        .announcement-list {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            margin-top: 10px;
        }

        .announce-card {
            background: rgba(255, 255, 255, 0.07);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: var(--radius);
            padding: 26px;
            position: relative;
            overflow: hidden;
            backdrop-filter: blur(10px);
            transition: var(--transition);
        }

        .announce-card:hover {
            background: rgba(255, 255, 255, 0.12);
            transform: translateY(-4px);
            border-color: rgba(201, 169, 98, 0.45);
            box-shadow: 0 14px 36px rgba(7, 15, 29, 0.5);
        }

        .announce-card .announce-pin {
            position: absolute;
            top: 20px;
            right: 20px;
            background: rgba(201, 169, 98, 0.2);
            color: var(--accent-light);
            font-size: 12px;
            font-weight: 700;
            padding: 4px 12px;
            border-radius: 20px;
            border: 1px solid rgba(201, 169, 98, 0.4);
        }

        .announce-card h3 {
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 12px;
            line-height: 1.5;
            padding-right: 60px;
        }

        .announce-card p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.72);
            line-height: 1.7;
            margin-bottom: 16px;
        }

        .announce-card .announce-date {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.5);
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .announce-card .announce-date i {
            color: var(--accent);
        }

        /* ===== Stats ===== */
        .stats-section {
            padding: var(--space-section) 0;
            background: var(--bg-white);
        }

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

        .stat-card {
            background: linear-gradient(145deg, #f8f9fc, #ffffff);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 34px 22px;
            text-align: center;
            transition: var(--transition);
        }

        .stat-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-md);
            border-color: rgba(201, 169, 98, 0.35);
        }

        .stat-card .stat-icon {
            font-size: 34px;
            color: var(--accent);
            margin-bottom: 14px;
        }

        .stat-card .stat-number {
            font-size: 42px;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
        }

        .stat-card .stat-label {
            font-size: 14px;
            color: var(--text-soft);
            margin-top: 6px;
        }

        /* ===== Topics ===== */
        .topic-section {
            padding: var(--space-section) 0;
            background: var(--bg);
        }

        .topic-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 26px;
        }

        .topic-card {
            position: relative;
            border-radius: var(--radius);
            overflow: hidden;
            min-height: 260px;
            display: flex;
            align-items: flex-end;
            box-shadow: var(--shadow-md);
            transition: var(--transition);
        }

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

        .topic-card img {
            position: absolute;
            inset: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.6s ease;
        }

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

        .topic-card::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(7, 15, 29, 0.88) 0%, rgba(7, 15, 29, 0.2) 60%, transparent 100%);
        }

        .topic-card-content {
            position: relative;
            z-index: 2;
            padding: 28px;
            color: #fff;
            width: 100%;
        }

        .topic-card-content .topic-tag {
            font-size: 12px;
            font-weight: 700;
            color: var(--accent-light);
            background: rgba(201, 169, 98, 0.2);
            border: 1px solid rgba(201, 169, 98, 0.35);
            padding: 4px 12px;
            border-radius: 20px;
            display: inline-block;
            margin-bottom: 10px;
        }

        .topic-card-content h3 {
            font-size: 22px;
            font-weight: 700;
            margin-bottom: 8px;
        }

        .topic-card-content p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.75);
            margin-bottom: 12px;
            max-width: 420px;
        }

        .topic-card-content .topic-link {
            font-size: 14px;
            font-weight: 600;
            color: var(--accent-light);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .topic-card-content .topic-link i {
            transition: transform 0.3s ease;
        }

        .topic-card-content .topic-link:hover {
            gap: 10px;
        }

        /* ===== Subscribe ===== */
        .subscribe-section {
            padding: var(--space-section) 0;
            background: linear-gradient(120deg, var(--primary), var(--primary-light));
            position: relative;
            overflow: hidden;
        }

        .subscribe-section::before {
            content: '';
            position: absolute;
            top: -60%;
            right: -20%;
            width: 500px;
            height: 500px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(201, 169, 98, 0.18), transparent 60%);
        }

        .subscribe-box {
            position: relative;
            text-align: center;
            max-width: 620px;
            margin: 0 auto;
        }

        .subscribe-box h2 {
            color: #fff;
            font-size: 34px;
            font-weight: 800;
            margin-bottom: 14px;
        }

        .subscribe-box p {
            color: rgba(255, 255, 255, 0.75);
            font-size: 16px;
            margin-bottom: 30px;
        }

        .subscribe-form {
            display: flex;
            gap: 12px;
            max-width: 440px;
            margin: 0 auto;
        }

        .subscribe-form input {
            flex: 1;
            border: 1px solid rgba(255, 255, 255, 0.2);
            background: rgba(255, 255, 255, 0.1);
            border-radius: 50px;
            padding: 14px 22px;
            font-size: 15px;
            color: #fff;
            backdrop-filter: blur(8px);
            transition: var(--transition);
        }

        .subscribe-form input::placeholder {
            color: rgba(255, 255, 255, 0.55);
        }

        .subscribe-form input:focus {
            background: rgba(255, 255, 255, 0.16);
            border-color: var(--accent);
            box-shadow: 0 0 0 4px rgba(201, 169, 98, 0.18);
        }

        .subscribe-form button {
            background: linear-gradient(135deg, var(--accent), var(--accent-dark));
            color: var(--primary-dark);
            font-weight: 700;
            border-radius: 50px;
            padding: 14px 28px;
            font-size: 15px;
            cursor: pointer;
            transition: var(--transition);
            border: none;
            white-space: nowrap;
        }

        .subscribe-form button:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(201, 169, 98, 0.4);
        }

        .subscribe-tip {
            margin-top: 18px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.45);
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 6px;
        }

        .subscribe-tip i {
            color: var(--accent);
        }

        /* ===== FAQ ===== */
        .faq-section {
            padding: var(--space-section) 0;
            background: var(--bg-white);
        }

        .faq-list {
            max-width: 820px;
            margin: 0 auto;
        }

        .faq-item {
            border: 1px solid var(--border);
            border-radius: var(--radius);
            margin-bottom: 14px;
            background: var(--bg-white);
            transition: var(--transition);
            overflow: hidden;
        }

        .faq-item:hover {
            border-color: rgba(201, 169, 98, 0.4);
            box-shadow: var(--shadow-sm);
        }

        .faq-item.active {
            border-color: rgba(201, 169, 98, 0.5);
            box-shadow: var(--shadow-md);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 20px 24px;
            font-size: 16px;
            font-weight: 700;
            cursor: pointer;
            gap: 16px;
            color: var(--text);
        }

        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 30px;
            height: 30px;
            border-radius: 50%;
            background: rgba(201, 169, 98, 0.12);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-dark);
            font-size: 14px;
            transition: var(--transition);
        }

        .faq-item.active .faq-icon {
            background: var(--accent);
            color: var(--primary-dark);
            transform: rotate(180deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.4s ease;
            padding: 0 24px;
            color: var(--text-soft);
            font-size: 15px;
            line-height: 1.75;
            border-top: 0px solid var(--border);
        }

        .faq-item.active .faq-answer {
            max-height: 220px;
            padding: 0 24px 20px;
            border-top-width: 1px;
            padding-top: 16px;
        }

        .faq-answer p {
            margin: 0;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: linear-gradient(135deg, #070f1d, #0b1f3a);
            color: rgba(255, 255, 255, 0.7);
            padding: 0;
        }

        .footer-top {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
            gap: 34px;
            padding: 56px 0 40px;
        }

        .footer-brand .brand-logo {
            margin-bottom: 14px;
        }

        .footer-brand p {
            font-size: 14px;
            line-height: 1.75;
            color: rgba(255, 255, 255, 0.55);
            margin-top: 14px;
        }

        .footer-col h4 {
            color: #fff;
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 18px;
            position: relative;
            padding-bottom: 10px;
        }

        .footer-col h4::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 34px;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
        }

        .footer-col ul {
            list-style: none;
            margin: 0;
        }

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

        .footer-col ul li a {
            color: rgba(255, 255, 255, 0.6);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: var(--transition);
        }

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

        .footer-col ul li i {
            color: var(--accent);
            width: 18px;
            font-size: 13px;
        }

        .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;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.4);
        }

        .footer-bottom a {
            color: rgba(255, 255, 255, 0.5);
            transition: var(--transition);
        }

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

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

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

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

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

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

            :root {
                --space-section: 64px;
            }
        }

        @media screen and (max-width: 768px) {
            .nav-toggle {
                display: flex;
            }

            .site-nav {
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: var(--primary);
                border-top: 1px solid rgba(201, 169, 98, 0.2);
                box-shadow: 0 18px 40px rgba(7, 15, 29, 0.5);
                padding: 0;
                max-height: 0;
                overflow: hidden;
                transition: max-height 0.4s ease;
            }

            .site-nav.open {
                max-height: 260px;
            }

            .site-nav .nav-list {
                flex-direction: column;
                padding: 16px 20px;
            }

            .site-nav .nav-list li a {
                padding: 14px 16px;
                font-size: 15px;
            }

            .page-hero {
                min-height: 300px;
                padding: 50px 0;
            }

            .page-hero h1 {
                font-size: 32px;
            }

            .section-head h2 {
                font-size: 28px;
            }

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

            .announcement-list {
                grid-template-columns: 1fr;
            }

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

            .footer-top {
                grid-template-columns: 1fr;
                gap: 26px;
            }

            .subscribe-form {
                flex-direction: column;
            }

            .hero-meta {
                gap: 16px;
            }
        }

        @media screen and (max-width: 520px) {
            .container {
                padding: 0 18px;
            }

            .brand-logo {
                font-size: 19px;
            }

            .page-hero h1 {
                font-size: 27px;
            }

            .page-hero p {
                font-size: 15px;
            }

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

            .section-head h2 {
                font-size: 24px;
            }

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

            .topic-card-content h3 {
                font-size: 19px;
            }

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

        /* ===== Focus visibility ===== */
        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: 3px solid rgba(201, 169, 98, 0.6);
            outline-offset: 2px;
        }

/* roulang page: category2 */
/* ========== 设计变量 ========== */
:root {
  --primary: #0f2d4d;
  --primary-deep: #0a1f35;
  --primary-soft: #e6eef7;
  --accent: #d4a853;
  --accent-dark: #b8893a;
  --accent-light: #f0e2c4;
  --body-bg: #f6f8fb;
  --white: #ffffff;
  --text: #1c2a38;
  --text-mid: #4a5a6a;
  --text-light: #7c8c9c;
  --border: #dfe6ee;
  --shadow: 0 6px 24px rgba(15, 45, 77, 0.08);
  --shadow-lg: 0 12px 40px rgba(15, 45, 77, 0.14);
  --radius: 14px;
  --radius-lg: 20px;
  --section-gap: 84px;
  --transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

/* ========== 基础重置 ========== */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: 'Inter', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
  color: var(--text);
  background: var(--body-bg);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--primary); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--accent-dark); }
h1, h2, h3, h4, h5 {
  font-family: 'Inter', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
  color: var(--primary);
  line-height: 1.3;
  margin-top: 0;
}
p { margin-top: 0; }
ul { list-style: none; margin: 0; padding: 0; }
button { font-family: inherit; }

a:focus-visible, button:focus-visible {
  outline: 3px solid rgba(212, 168, 83, 0.55);
  outline-offset: 2px;
}

/* ========== 通用容器 ========== */
.container {
  width: 100%;
  max-width: 75rem;
  margin: 0 auto;
  padding: 0 1.25rem;
}
.grid-container { max-width: 75rem; }

/* ========== 顶部导航 ========== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.97);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 2px 12px rgba(15, 45, 77, 0.04);
  transition: box-shadow 0.3s ease;
}
.site-header.scrolled {
  box-shadow: 0 8px 28px rgba(15, 45, 77, 0.08);
}
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 78px;
}
.brand-logo {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  font-weight: 800;
  font-size: 1.4rem;
  color: var(--primary);
  white-space: nowrap;
  line-height: 1.2;
}
.brand-logo i {
  color: var(--accent);
  font-size: 1.35rem;
}
.brand-logo span {
  font-size: 0.7rem;
  font-weight: 600;
  background: var(--primary);
  color: #fff;
  padding: 0.12rem 0.5rem;
  border-radius: 999px;
  letter-spacing: 0.04em;
  margin-left: 0.1rem;
}
.brand-logo:hover { color: var(--primary); opacity: 0.88; }

.site-nav { display: flex; align-items: center; }
.nav-list {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  margin: 0;
  padding: 0;
}
.nav-list li { margin: 0; }
.nav-list a {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.6rem 1.25rem;
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--text-mid);
  border-radius: 999px;
  transition: var(--transition);
  border: 1px solid transparent;
}
.nav-list a:hover {
  background: var(--primary-soft);
  color: var(--primary);
}
.nav-list a.active {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 4px 16px rgba(15, 45, 77, 0.3);
}
.nav-toggle {
  display: none;
  background: none;
  border: 0;
  font-size: 1.5rem;
  color: var(--primary);
  cursor: pointer;
  line-height: 1;
  padding: 0.4rem 0.5rem;
  border-radius: 10px;
}
.nav-toggle:hover { background: var(--primary-soft); }

/* ========== 页面主横幅 ========== */
.page-hero {
  position: relative;
  padding: 6.5rem 0 5rem;
  text-align: center;
  background-color: #0b1c30;
  background-size: cover;
  background-position: center;
  overflow: hidden;
}
.page-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(100deg, rgba(8, 20, 34, 0.93) 0%, rgba(10, 31, 53, 0.74) 55%, rgba(13, 40, 66, 0.45) 100%);
  z-index: 1;
}
.page-hero .grid-container { position: relative; z-index: 2; }

.breadcrumb {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 0.45rem;
  color: rgba(255, 255, 255, 0.65);
  font-size: 0.86rem;
  margin-bottom: 1.3rem;
}
.breadcrumb a { color: rgba(255, 255, 255, 0.82); }
.breadcrumb a:hover { color: var(--accent-light); }
.breadcrumb-sep { opacity: 0.55; font-size: 0.7rem; }

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.24);
  border-radius: 999px;
  padding: 0.4rem 1.15rem;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  color: var(--accent-light);
  margin-bottom: 1.2rem;
}
.hero-content h1 {
  color: #fff;
  font-size: 3.1rem;
  margin-bottom: 0.8rem;
  letter-spacing: -0.02em;
}
.hero-lead {
  max-width: 42rem;
  margin: 0 auto 1.9rem;
  font-size: 1.08rem;
  line-height: 1.85;
  color: rgba(255, 255, 255, 0.82);
}
.hero-actions {
  display: flex;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
}
.hero-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.78rem 1.5rem;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  transition: var(--transition);
  border: 0;
}
.hero-btn.primary {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 6px 20px rgba(212, 168, 83, 0.35);
}
.hero-btn.primary:hover {
  background: var(--accent-dark);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 10px 24px rgba(212, 168, 83, 0.45);
}
.hero-btn.ghost {
  border: 1px solid rgba(255, 255, 255, 0.45);
  color: #fff;
  background: rgba(255, 255, 255, 0.08);
}
.hero-btn.ghost:hover {
  background: rgba(255, 255, 255, 0.18);
  border-color: #fff;
  color: #fff;
}

.hero-metrics {
  display: flex;
  justify-content: center;
  gap: 3rem;
  margin-top: 3rem;
  padding-top: 2.2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.18);
}
.metric-item { text-align: center; }
.metric-item strong {
  display: block;
  font-size: 2.1rem;
  color: #fff;
  font-weight: 800;
  letter-spacing: -0.01em;
}
.metric-item span {
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.7);
}

/* ========== 通用板块 ========== */
.section { padding: var(--section-gap) 0; }
.section-alt { background: var(--white); }
.section-dark {
  position: relative;
  background-color: #0b1c30;
  background-size: cover;
  background-position: center;
}
.section-dark::before {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(9, 24, 40, 0.88);
}
.section-dark .grid-container { position: relative; z-index: 2; }

.section-head {
  text-align: center;
  max-width: 48rem;
  margin: 0 auto 3rem;
}
.section-tag {
  display: inline-block;
  background: var(--accent-light);
  color: var(--accent-dark);
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  padding: 0.28rem 1rem;
  border-radius: 999px;
  margin-bottom: 0.9rem;
}
.section-head h2 { font-size: 2rem; margin-bottom: 0.75rem; }
.section-head p {
  color: var(--text-mid);
  font-size: 1rem;
  line-height: 1.75;
  margin-bottom: 0;
}
.section-head.light h2 { color: #fff; }
.section-head.light .section-tag { background: rgba(255, 255, 255, 0.12); color: var(--accent-light); }
.section-head.light p { color: rgba(255, 255, 255, 0.78); }

/* ========== 导读区 ========== */
.overview-media {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}
.overview-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  aspect-ratio: 4 / 3;
}
.overview-content { padding-left: 1.5rem; }
.overview-content h2 { font-size: 2rem; margin-bottom: 1.2rem; }
.overview-content p {
  color: var(--text-mid);
  font-size: 1.02rem;
  line-height: 1.85;
  margin-bottom: 1.4rem;
}
.check-list li {
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
  margin-bottom: 0.7rem;
  font-size: 0.97rem;
  font-weight: 500;
}
.check-list li i {
  color: var(--accent);
  font-size: 1.1rem;
  margin-top: 0.16rem;
}
.text-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-weight: 600;
  color: var(--primary);
  margin-top: 0.55rem;
  transition: var(--transition);
}
.text-link:hover { gap: 0.7rem; color: var(--accent-dark); }

/* ========== 核心模块卡片 ========== */
.core-modules { background: var(--body-bg); }
.module-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
  transition: var(--transition);
  height: 100%;
  display: flex;
  flex-direction: column;
}
.module-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(212, 168, 83, 0.5);
}
.module-img {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16 / 9;
  background: var(--primary-soft);
}
.module-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.module-card:hover .module-img img { transform: scale(1.06); }
.module-body {
  padding: 1.6rem 1.6rem 1.8rem;
  display: flex;
  flex-direction: column;
  flex: 1;
}
.module-index {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.2rem;
  height: 2.2rem;
  background: var(--primary);
  color: #fff;
  border-radius: 12px;
  font-weight: 800;
  font-size: 0.9rem;
  margin-bottom: 1rem;
}
.module-body h3 { font-size: 1.16rem; margin-bottom: 0.6rem; }
.module-body p {
  font-size: 0.9rem;
  color: var(--text-mid);
  line-height: 1.72;
  margin-bottom: 1.2rem;
  flex: 1;
}
.module-link {
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}
.module-link:hover { color: var(--accent-dark); gap: 0.6rem; }

/* ========== 步骤指南 ========== */
.step-grid { row-gap: 1.5rem; }
.step-card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 1.9rem 1.6rem 1.7rem;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
  height: 100%;
  position: relative;
  transition: var(--transition);
}
.step-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--accent);
}
.step-num {
  position: absolute;
  right: 1.2rem;
  top: 0.75rem;
  font-size: 2.5rem;
  font-weight: 800;
  line-height: 1;
  color: transparent;
  -webkit-text-stroke: 1px rgba(15, 45, 77, 0.35);
}
.step-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 3rem;
  height: 3rem;
  background: var(--accent-light);
  color: var(--accent-dark);
  border-radius: 12px;
  font-size: 1.2rem;
  margin-bottom: 1.1rem;
}
.step-card h3 { font-size: 1.12rem; margin-bottom: 0.6rem; }
.step-card p {
  margin-bottom: 0;
  font-size: 0.9rem;
  color: var(--text-mid);
  line-height: 1.72;
}

/* ========== 深色建议区 ========== */
.tips-section { background-color: #0d2137; }
.tips-grid { row-gap: 1.5rem; }
.tip-card {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: var(--radius);
  padding: 1.9rem 1.5rem 1.7rem;
  text-align: center;
  height: 100%;
  backdrop-filter: blur(6px);
  transition: var(--transition);
}
.tip-card:hover {
  background: rgba(255, 255, 255, 0.14);
  transform: translateY(-4px);
}
.tip-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 3.2rem;
  height: 3.2rem;
  background: var(--accent);
  color: #fff;
  border-radius: 50%;
  font-size: 1.25rem;
  margin-bottom: 1rem;
  box-shadow: 0 6px 18px rgba(212, 168, 83, 0.35);
}
.tip-card h3 { color: #fff; font-size: 1.1rem; margin-bottom: 0.55rem; }
.tip-card p {
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.9rem;
  line-height: 1.72;
  margin-bottom: 0;
}

/* ========== 评分与引用 ========== */
.rating-panel {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 2.2rem 2.2rem 2rem;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
}
.rating-panel h2 { font-size: 1.65rem; margin-bottom: 1.8rem; }
.rating-item { margin-bottom: 1.4rem; }
.rating-item:last-child { margin-bottom: 0; }
.rating-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.45rem;
  font-size: 0.9rem;
}
.rating-meta span { color: var(--text-mid); font-weight: 500; }
.rating-meta strong { color: var(--primary); font-size: 1.03rem; }
.progress-bar {
  height: 8px;
  background: #e8edf2;
  border-radius: 99px;
  overflow: hidden;
}
.progress-bar span {
  display: block;
  height: 100%;
  background: linear-gradient(90deg, var(--accent), var(--accent-light));
  border-radius: 99px;
}
.quote-panel {
  position: relative;
  background: var(--primary);
  border-radius: var(--radius-lg);
  padding: 2.4rem 2.3rem 2.1rem;
  color: #fff;
  min-height: 100%;
  overflow: hidden;
}
.quote-mark {
  font-size: 3.6rem;
  color: var(--accent);
  opacity: 0.5;
  line-height: 1;
  margin-bottom: 1.2rem;
}
.quote-panel blockquote {
  font-size: 1.24rem;
  line-height: 1.85;
  color: rgba(255, 255, 255, 0.92);
  margin-bottom: 1.5rem;
  border-left: 3px solid var(--accent);
  padding-left: 1.3rem;
}
.quote-source {
  display: flex;
  align-items: center;
  gap: 0.9rem;
}
.quote-source img {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--accent);
}
.quote-source strong { display: block; font-size: 0.95rem; color: #fff; }
.quote-source span { font-size: 0.82rem; color: rgba(255, 255, 255, 0.6); }

/* ========== FAQ ========== */
.faq-list { max-width: 50rem; margin: 0 auto; }
.faq-item {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 0.9rem;
  overflow: hidden;
  transition: var(--transition);
}
.faq-item.active {
  box-shadow: var(--shadow);
  border-color: var(--accent);
}
.faq-question {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  background: none;
  border: 0;
  padding: 1.15rem 1.4rem;
  font-size: 1rem;
  font-weight: 600;
  color: var(--text);
  cursor: pointer;
  text-align: left;
  transition: var(--transition);
}
.faq-question:hover { color: var(--primary); }
.faq-question i {
  color: var(--accent);
  transition: transform 0.3s ease;
  flex-shrink: 0;
}
.faq-item.active .faq-question i { transform: rotate(180deg); }
.faq-answer {
  display: none;
  padding: 0 1.4rem 1.25rem;
}
.faq-item.active .faq-answer { display: block; }
.faq-answer p {
  margin: 0;
  font-size: 0.94rem;
  color: var(--text-mid);
  line-height: 1.8;
  border-top: 1px solid #eef2f6;
  padding-top: 0.9rem;
}

/* ========== CTA ========== */
.cta-section { padding: 0 0 var(--section-gap); }
.cta-box {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background-size: cover;
  background-position: center;
  text-align: center;
  padding: 4rem 2rem;
}
.cta-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, #0a1f35 0%, #123454 70%, #1a4a78 100%);
  opacity: 0.93;
}
.cta-content { position: relative; z-index: 2; }
.cta-content h2 { color: #fff; font-size: 1.95rem; margin-bottom: 0.7rem; }
.cta-content p {
  color: rgba(255, 255, 255, 0.82);
  font-size: 1.02rem;
  margin-bottom: 1.9rem;
}
.cta-buttons {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}
.btn-primary,
.btn-outline-light {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.85rem 1.7rem;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  transition: var(--transition);
  border: 0;
}
.btn-primary {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 6px 20px rgba(212, 168, 83, 0.35);
}
.btn-primary:hover {
  background: var(--accent-dark);
  color: #fff;
  transform: translateY(-3px);
}
.btn-outline-light {
  border: 1px solid rgba(255, 255, 255, 0.55);
  color: #fff;
  background: transparent;
}
.btn-outline-light:hover {
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
  border-color: #fff;
}

/* ========== 页脚 ========== */
.site-footer {
  background: #0c1a2b;
  color: rgba(255, 255, 255, 0.66);
  padding-top: 3rem;
  padding-bottom: 1.6rem;
}
.site-footer .container { max-width: 75rem; }
.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.2fr;
  gap: 2rem;
  padding-bottom: 2rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}
.footer-brand .brand-logo { color: #fff; }
.footer-brand .brand-logo i { color: var(--accent); }
.footer-brand p {
  font-size: 0.9rem;
  line-height: 1.85;
  margin: 1.1rem 0 0;
  color: rgba(255, 255, 255, 0.62);
}
.footer-col h4 {
  color: #fff;
  font-size: 1rem;
  margin-bottom: 1.1rem;
  font-weight: 700;
}
.footer-col ul li { margin-bottom: 0.6rem; font-size: 0.9rem; }
.footer-col ul li a {
  color: rgba(255, 255, 255, 0.66);
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  transition: var(--transition);
}
.footer-col ul li a:hover {
  color: var(--accent-light);
  padding-left: 3px;
}
.footer-col ul li i { font-size: 0.75rem; color: rgba(212, 168, 83, 0.7); }
.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  font-size: 0.82rem;
  color: rgba(255, 255, 255, 0.5);
  padding-top: 1.5rem;
  flex-wrap: wrap;
}
.footer-bottom a { color: rgba(255, 255, 255, 0.6); }
.footer-bottom a:hover { color: var(--accent-light); }

/* ========== 响应式 ========== */
@media (max-width: 64em) {
  :root { --section-gap: 72px; }
  .footer-top { grid-template-columns: 1fr 1fr; }
  .footer-brand { grid-column: 1 / -1; }
}

@media (max-width: 52em) {
  :root { --section-gap: 60px; }
  .nav-toggle { display: block; }
  .site-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    display: none;
    background: #fff;
    border-bottom: 1px solid var(--border);
    padding: 0.75rem 1rem 1.25rem;
    box-shadow: 0 16px 32px rgba(0, 0, 0, 0.08);
  }
  .site-nav.open { display: block; }
  .nav-list { flex-direction: column; gap: 0.35rem; align-items: stretch; }
  .nav-list a { display: block; padding: 0.75rem 1rem; border-radius: 0.65rem; }

  .hero-content h1 { font-size: 2.4rem; }
  .page-hero { padding: 4.2rem 0; }
  .hero-metrics { gap: 2rem; }

  .overview-content { padding-left: 0; margin-top: 1.5rem; }
  .quote-panel { margin-top: 1.5rem; }
  .cta-box { padding: 3rem 1.5rem; }
  .footer-top { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 40em) {
  .hero-content h1 { font-size: 1.95rem; }
  .hero-lead { font-size: 1rem; }
  .hero-metrics { gap: 1.2rem; }
  .hero-actions { flex-direction: column; align-items: stretch; }
  .hero-btn { justify-content: center; }

  .section-head h2 { font-size: 1.6rem; }
  .overview-content h2 { font-size: 1.6rem; }
  .footer-top { grid-template-columns: 1fr; }
  .footer-brand { grid-column: auto; }
  .footer-bottom { flex-direction: column; align-items: center; text-align: center; }
  .cta-content h2 { font-size: 1.4rem; }
  .cta-box { padding: 2.4rem 1.1rem; }
  .cta-buttons { flex-direction: column; align-items: stretch; }
  .btn-primary, .btn-outline-light { justify-content: center; }
  .quote-panel { padding: 1.8rem 1.5rem 1.7rem; }
}