/* roulang page: index */
:root {
    --c-primary: #0F1C3A;
    --c-primary-light: #1B2A4A;
    --c-gold: #C9A86A;
    --c-gold-bright: #D4AF37;
    --c-gold-dark: #B8860B;
    --c-bg: #F7F7F5;
    --c-card: #FFFFFF;
    --c-text: #1A1A2E;
    --c-text-light: #6B7280;
    --c-border: #E5E7EB;
    --r-sm: 8px;
    --r-md: 12px;
    --r-lg: 20px;
    --shadow-card: 0 4px 24px rgba(15, 28, 58, 0.08);
    --shadow-hover: 0 14px 40px rgba(15, 28, 58, 0.16);
    --space-section: 5rem;
}
* {
    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(--c-bg);
    color: var(--c-text);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
}
a {
    text-decoration: none;
    color: inherit;
    transition: all .25s ease;
}
img {
    max-width: 100%;
    display: block;
}
button {
    cursor: pointer;
    font-family: inherit;
}
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding-left: 1.5rem;
    padding-right: 1.5rem;
}

/* ===== Header ===== */
.site-header {
    background: rgba(15, 28, 58, 0.97);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    position: sticky;
    top: 0;
    z-index: 999;
    box-shadow: 0 2px 24px rgba(0, 0, 0, 0.2);
    border-bottom: 1px solid rgba(201, 168, 106, 0.25);
}
.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.9rem 1.5rem;
    max-width: 1200px;
    margin: 0 auto;
}
.logo {
    font-size: 1.55rem;
    font-weight: 800;
    color: #fff;
    letter-spacing: 1px;
    display: inline-flex;
    align-items: baseline;
    gap: 0.15rem;
}
.logo em {
    font-style: normal;
    color: var(--c-gold-bright);
    font-weight: 800;
}
.nav-links {
    display: flex;
    align-items: center;
    gap: 2.2rem;
}
.nav-links a {
    color: rgba(255, 255, 255, 0.85);
    font-weight: 500;
    font-size: 0.95rem;
    padding: 0.4rem 0.1rem;
    border-bottom: 2px solid transparent;
    position: relative;
}
.nav-links a i {
    margin-right: 0.3rem;
    font-size: 0.8rem;
    opacity: 0.7;
}
.nav-links a:hover {
    color: var(--c-gold-bright);
}
.nav-links a.active {
    color: var(--c-gold-bright);
    border-bottom-color: var(--c-gold-bright);
}
.nav-cta {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: linear-gradient(135deg, #D4AF37, #B8860B);
    color: #fff;
    padding: 0.55rem 1.6rem;
    border-radius: var(--r-sm);
    font-weight: 600;
    font-size: 0.9rem;
    box-shadow: 0 4px 18px rgba(212, 175, 55, 0.35);
    transition: all .3s ease;
}
.nav-cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 28px rgba(212, 175, 55, 0.5);
    color: #fff;
}
.mobile-toggle {
    display: none;
    background: none;
    border: 0;
    color: #fff;
    font-size: 1.4rem;
    padding: 0.4rem;
    line-height: 1;
}
.mobile-menu {
    display: none;
    padding: 0.8rem 1.5rem 1.2rem;
    background: var(--c-primary-light);
    border-top: 1px solid rgba(255, 255, 255, 0.06);
}
.mobile-menu a {
    display: block;
    color: rgba(255, 255, 255, 0.88);
    padding: 0.7rem 0.3rem;
    font-size: 1rem;
    font-weight: 500;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}
.mobile-menu a:last-child {
    border-bottom: 0;
}
.mobile-menu a.active {
    color: var(--c-gold-bright);
}
.mobile-menu a:hover {
    color: var(--c-gold-bright);
    padding-left: 0.8rem;
}
.mobile-menu .mobile-cta {
    display: inline-flex;
    margin-top: 0.8rem;
    background: linear-gradient(135deg, #D4AF37, #B8860B);
    color: #fff;
    padding: 0.55rem 1.6rem;
    border-radius: var(--r-sm);
    font-weight: 600;
    border: 0;
}

/* ===== Hero ===== */
.hero {
    position: relative;
    background-size: cover;
    background-position: center;
    min-height: 620px;
    display: flex;
    align-items: center;
}
.hero-mask {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(15, 28, 58, 0.93) 0%, rgba(15, 28, 58, 0.78) 60%, rgba(15, 28, 58, 0.5) 100%);
}
.hero-content {
    position: relative;
    z-index: 2;
    padding: 5.5rem 0;
    width: 100%;
}
.hero-tag {
    display: inline-block;
    background: rgba(201, 168, 106, 0.16);
    border: 1px solid rgba(201, 168, 106, 0.4);
    color: var(--c-gold);
    padding: 0.35rem 1.2rem;
    border-radius: 100px;
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 1px;
    margin-bottom: 1.6rem;
}
.hero-title {
    font-size: 3.4rem;
    font-weight: 800;
    color: #fff;
    line-height: 1.18;
    margin-bottom: 1.2rem;
    letter-spacing: 0.02em;
}
.hero-title .accent {
    color: var(--c-gold-bright);
}
.hero-subtitle {
    font-size: 1.1rem;
    color: rgba(255, 255, 255, 0.82);
    max-width: 620px;
    margin-bottom: 2.4rem;
    line-height: 1.8;
}
.hero-btns {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.55rem;
    padding: 0.7rem 1.8rem;
    border-radius: var(--r-sm);
    font-weight: 600;
    font-size: 0.95rem;
    transition: all .3s ease;
    border: 1.5px solid transparent;
}
.btn i {
    font-size: 0.85rem;
}
.btn-gold {
    background: linear-gradient(135deg, #D4AF37, #B8860B);
    color: #fff;
    box-shadow: 0 6px 20px rgba(212, 175, 55, 0.4);
}
.btn-gold:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 32px rgba(212, 175, 55, 0.55);
    color: #fff;
}
.btn-outline {
    background: transparent;
    border-color: rgba(255, 255, 255, 0.7);
    color: #fff;
}
.btn-outline:hover {
    border-color: var(--c-gold-bright);
    color: var(--c-gold-bright);
    transform: translateY(-3px);
}
.btn-light {
    background: #fff;
    color: var(--c-primary);
    box-shadow: 0 4px 18px rgba(255, 255, 255, 0.25);
}
.btn-light:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 28px rgba(255, 255, 255, 0.35);
    color: var(--c-primary);
}
.btn-ghost {
    background: transparent;
    border-color: rgba(255, 255, 255, 0.5);
    color: #fff;
}
.btn-ghost:hover {
    border-color: #fff;
    background: rgba(255, 255, 255, 0.08);
    color: #fff;
}

/* ===== Section ===== */
.section-pad {
    padding: var(--space-section) 0;
}
.section-top {
    text-align: center;
    margin-bottom: 3rem;
}
.badge {
    display: inline-block;
    background: rgba(201, 168, 106, 0.12);
    border: 1px solid rgba(201, 168, 106, 0.35);
    color: var(--c-gold-dark);
    padding: 0.3rem 1.2rem;
    border-radius: 100px;
    font-size: 0.78rem;
    font-weight: 600;
    letter-spacing: 1px;
    margin-bottom: 1.1rem;
}
.badge-light {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.25);
    color: var(--c-gold-bright);
}
.section-title {
    font-size: 2rem;
    font-weight: 800;
    color: var(--c-text);
    line-height: 1.3;
    margin-bottom: 0.8rem;
}
.section-subtitle {
    color: var(--c-text-light);
    max-width: 620px;
    margin: 0 auto;
    font-size: 0.95rem;
    line-height: 1.7;
}
.text-white {
    color: #fff;
}
.text-white\/60 {
    color: rgba(255, 255, 255, 0.6);
}

/* ===== About ===== */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3.5rem;
    align-items: center;
}
.about-img {
    border-radius: var(--r-lg);
    overflow: hidden;
    box-shadow: var(--shadow-card);
    transition: box-shadow .4s ease;
}
.about-img:hover {
    box-shadow: var(--shadow-hover);
}
.about-img img {
    width: 100%;
    height: 380px;
    object-fit: cover;
}
.about-content {
    padding: 0.5rem 0;
}
.about-lead {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--c-text);
    margin-bottom: 1.8rem;
    line-height: 1.6;
    border-left: 4px solid var(--c-gold);
    padding-left: 1.2rem;
}
.feature-list {
    display: grid;
    gap: 1.4rem;
    list-style: none;
}
.feature-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    background: var(--c-card);
    border-radius: var(--r-md);
    padding: 1.2rem 1.4rem;
    box-shadow: var(--shadow-card);
    border: 1px solid rgba(229, 231, 235, 0.6);
    transition: all .3s ease;
}
.feature-item:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-hover);
}
.feature-item i {
    font-size: 1.2rem;
    color: var(--c-gold);
    width: 44px;
    height: 44px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(201, 168, 106, 0.12);
    border-radius: var(--r-sm);
}
.feature-item span {
    font-weight: 600;
    font-size: 0.98rem;
    color: var(--c-text);
    display: block;
    line-height: 1.4;
}
.feature-item em {
    font-style: normal;
    font-size: 0.85rem;
    color: var(--c-text-light);
    display: block;
    margin-top: 0.15rem;
}

/* ===== Category Card ===== */
.category-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
}
.category-card {
    position: relative;
    background: var(--c-card);
    border-radius: var(--r-lg);
    overflow: hidden;
    box-shadow: var(--shadow-card);
    transition: all .4s ease;
    border: 1px solid rgba(229, 231, 235, 0.6);
    display: block;
}
.category-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-hover);
}
.category-card img {
    width: 100%;
    height: 240px;
    object-fit: cover;
    transition: transform .5s ease;
}
.category-card:hover img {
    transform: scale(1.04);
}
.category-content {
    padding: 1.8rem 1.8rem 2rem;
}
.category-content .tag {
    display: inline-block;
    background: rgba(201, 168, 106, 0.14);
    color: var(--c-gold-dark);
    border-radius: 6px;
    padding: 0.2rem 0.8rem;
    font-size: 0.75rem;
    font-weight: 600;
    margin-bottom: 0.8rem;
}
.category-content h3 {
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--c-text);
    margin-bottom: 0.6rem;
}
.category-content p {
    color: var(--c-text-light);
    font-size: 0.9rem;
    line-height: 1.7;
    margin-bottom: 1.2rem;
}
.category-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--c-gold-dark);
    font-weight: 600;
    font-size: 0.9rem;
    transition: all .3s ease;
}
.category-card:hover .category-link {
    gap: 0.9rem;
    color: var(--c-primary);
}
.category-link i {
    font-size: 0.8rem;
}

/* ===== Stats ===== */
.stats-section {
    background: var(--c-primary);
    position: relative;
    overflow: hidden;
}
.stats-section::before {
    content: '';
    position: absolute;
    top: -60%;
    right: -20%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(201, 168, 106, 0.08) 0%, transparent 70%);
    pointer-events: none;
}
.stats-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    position: relative;
    z-index: 2;
}
.stats-card {
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--r-lg);
    padding: 2.4rem 1.6rem;
    text-align: center;
    transition: all .4s ease;
}
.stats-card:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(201, 168, 106, 0.4);
    transform: translateY(-5px);
}
.stat-num {
    font-size: 2.8rem;
    font-weight: 800;
    color: var(--c-gold-bright);
    line-height: 1.2;
    margin-bottom: 0.4rem;
    letter-spacing: 1px;
}
.stats-label {
    color: rgba(255, 255, 255, 0.75);
    font-size: 0.9rem;
    font-weight: 500;
}

/* ===== Flow ===== */
.flow-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}
.flow-step {
    position: relative;
    background: var(--c-card);
    border-radius: var(--r-lg);
    padding: 2.5rem 2rem;
    box-shadow: var(--shadow-card);
    border: 1px solid rgba(229, 231, 235, 0.6);
    transition: all .35s ease;
    text-align: center;
}
.flow-step:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-hover);
}
.flow-num {
    position: absolute;
    top: 1.2rem;
    right: 1.4rem;
    font-size: 2.4rem;
    font-weight: 800;
    color: rgba(15, 28, 58, 0.07);
    line-height: 1;
    letter-spacing: -0.02em;
}
.flow-icon {
    width: 68px;
    height: 68px;
    margin: 0 auto 1.4rem;
    background: linear-gradient(135deg, rgba(201, 168, 106, 0.18), rgba(201, 168, 106, 0.06));
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--c-gold-dark);
    font-size: 1.4rem;
    border: 1px solid rgba(201, 168, 106, 0.3);
    transition: all .35s ease;
}
.flow-step:hover .flow-icon {
    background: linear-gradient(135deg, var(--c-gold), var(--c-gold-dark));
    color: #fff;
    transform: scale(1.06);
}
.flow-step h3 {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--c-text);
    margin-bottom: 0.7rem;
}
.flow-step p {
    font-size: 0.88rem;
    color: var(--c-text-light);
    line-height: 1.7;
}

/* ===== Post List ===== */
.post-list {
    display: grid;
    gap: 1.1rem;
}
.post-item {
    background: var(--c-card);
    border-radius: var(--r-md);
    padding: 1.3rem 1.6rem;
    box-shadow: var(--shadow-card);
    transition: all .3s ease;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1.5rem;
    border-left: 4px solid var(--c-gold);
    border: 1px solid rgba(229, 231, 235, 0.6);
    border-left-width: 4px;
    border-left-color: var(--c-gold);
}
.post-item:hover {
    transform: translateX(6px);
    box-shadow: var(--shadow-hover);
}
.post-info {
    flex: 1;
    min-width: 0;
}
.post-cat {
    display: inline-block;
    background: rgba(15, 28, 58, 0.06);
    color: var(--c-primary);
    padding: 0.18rem 0.7rem;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 600;
    margin-bottom: 0.4rem;
}
.post-title {
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--c-text);
    line-height: 1.5;
    margin-bottom: 0.2rem;
    transition: color .2s ease;
}
.post-item:hover .post-title {
    color: var(--c-gold-dark);
}
.post-desc {
    font-size: 0.86rem;
    color: var(--c-text-light);
    line-height: 1.6;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 720px;
}
.post-meta {
    display: flex;
    align-items: center;
    gap: 1rem;
    flex-shrink: 0;
}
.post-date {
    font-size: 0.8rem;
    color: var(--c-text-light);
    white-space: nowrap;
}
.post-arrow {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: rgba(15, 28, 58, 0.04);
    color: var(--c-primary);
    font-size: 0.8rem;
    transition: all .3s ease;
}
.post-item:hover .post-arrow {
    background: var(--c-gold);
    color: #fff;
    transform: translateX(3px);
}
.empty-tip {
    background: var(--c-card);
    border: 1px dashed var(--c-border);
    border-radius: var(--r-md);
    padding: 3rem 2rem;
    text-align: center;
    color: var(--c-text-light);
    font-size: 0.95rem;
}
.empty-tip i {
    font-size: 2rem;
    color: var(--c-border);
    display: block;
    margin-bottom: 0.8rem;
}

/* ===== FAQ ===== */
.faq-wrap {
    max-width: 800px;
    margin: 0 auto;
}
.faq-item {
    background: var(--c-card);
    border-radius: var(--r-md);
    margin-bottom: 0.9rem;
    overflow: hidden;
    border: 1px solid var(--c-border);
    box-shadow: 0 2px 12px rgba(15, 28, 58, 0.04);
    transition: all .3s ease;
}
.faq-item:hover {
    border-color: rgba(201, 168, 106, 0.4);
}
.faq-item.open {
    border-color: rgba(201, 168, 106, 0.5);
    box-shadow: 0 4px 18px rgba(15, 28, 58, 0.08);
}
.faq-q {
    padding: 1.2rem 1.6rem;
    font-weight: 600;
    font-size: 0.98rem;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    user-select: none;
    color: var(--c-text);
}
.faq-q i {
    font-size: 0.85rem;
    color: var(--c-text-light);
    transition: transform .3s ease;
}
.faq-item.open .faq-q i {
    transform: rotate(180deg);
    color: var(--c-gold-dark);
}
.faq-a {
    padding: 0 1.6rem 1.3rem;
    color: var(--c-text-light);
    font-size: 0.9rem;
    line-height: 1.75;
    display: none;
}
.faq-item.open .faq-a {
    display: block;
}

/* ===== CTA ===== */
.cta-box {
    background: linear-gradient(135deg, var(--c-primary) 0%, var(--c-primary-light) 60%, rgba(15, 28, 58, 0.9) 100%);
    border-radius: var(--r-lg);
    padding: 3.5rem 3rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 2.5rem;
    border: 1px solid rgba(255, 255, 255, 0.1);
    position: relative;
    overflow: hidden;
    box-shadow: 0 16px 48px rgba(15, 28, 58, 0.3);
}
.cta-box::after {
    content: '';
    position: absolute;
    top: -80px;
    right: -80px;
    width: 260px;
    height: 260px;
    border-radius: 50%;
    background: rgba(201, 168, 106, 0.12);
    pointer-events: none;
}
.cta-content h2 {
    font-size: 1.6rem;
    font-weight: 700;
    color: #fff;
    margin-bottom: 0.5rem;
}
.cta-content p {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.95rem;
}
.cta-btns {
    display: flex;
    gap: 1rem;
    flex-shrink: 0;
    position: relative;
    z-index: 2;
}

/* ===== Footer ===== */
.site-footer {
    background: var(--c-primary);
    color: rgba(255, 255, 255, 0.72);
    padding: 3.5rem 0 0;
}
.footer-grid {
    display: grid;
    grid-template-columns: 1.4fr 0.8fr 1fr;
    gap: 3rem;
    padding-bottom: 2.5rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}
.footer-brand h3 {
    font-size: 1.4rem;
    font-weight: 800;
    color: #fff;
    margin-bottom: 0.8rem;
}
.footer-brand p {
    font-size: 0.88rem;
    line-height: 1.7;
    color: rgba(255, 255, 255, 0.62);
    max-width: 320px;
}
.footer-col h4 {
    font-size: 0.95rem;
    font-weight: 700;
    color: rgba(255, 255, 255, 0.92);
    margin-bottom: 1rem;
    letter-spacing: 0.5px;
}
.footer-links {
    list-style: none;
    display: grid;
    gap: 0.6rem;
}
.footer-links a {
    color: rgba(255, 255, 255, 0.62);
    font-size: 0.88rem;
}
.footer-links a:hover {
    color: var(--c-gold-bright);
    padding-left: 0.3rem;
}
.footer-contact {
    font-size: 0.86rem;
    line-height: 1.7;
    color: rgba(255, 255, 255, 0.62);
}
.footer-domain {
    font-size: 0.86rem;
    color: rgba(201, 168, 106, 0.85);
    margin-top: 0.5rem;
}
.footer-bottom {
    padding: 1.4rem 0;
    text-align: center;
    font-size: 0.82rem;
    color: rgba(255, 255, 255, 0.4);
    border-top: 1px solid rgba(255, 255, 255, 0.06);
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
    :root {
        --space-section: 4rem;
    }
    .hero-title {
        font-size: 2.6rem;
    }
    .about-grid {
        grid-template-columns: 1fr;
        gap: 2.5rem;
    }
    .flow-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 1.2rem;
    }
    .stats-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 1.2rem;
    }
    .cta-box {
        flex-direction: column;
        text-align: center;
        padding: 2.8rem 2rem;
    }
    .cta-btns {
        justify-content: center;
    }
}
@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    .nav-cta {
        display: none;
    }
    .mobile-toggle {
        display: block;
    }
    .mobile-menu {
        display: none;
    }
    .mobile-menu.show {
        display: block;
    }
    .hero {
        min-height: 520px;
    }
    .hero-title {
        font-size: 2.2rem;
    }
    .hero-subtitle {
        font-size: 1rem;
    }
    .section-title {
        font-size: 1.6rem;
    }
    .about-grid {
        grid-template-columns: 1fr;
    }
    .about-img img {
        height: 260px;
    }
    .flex-layout {
        flex-direction: column;
    }
    .stats-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    .stats-card {
        padding: 1.6rem 1rem;
    }
    .stat-num {
        font-size: 2.2rem;
    }
    .flow-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    .flow-step {
        padding: 1.8rem 1.5rem;
        text-align: left;
        display: flex;
        flex-wrap: wrap;
        align-items: center;
        gap: 1rem;
    }
    .flow-icon {
        width: 54px;
        height: 54px;
        margin: 0;
        border-radius: 14px;
        font-size: 1.1rem;
    }
    .flow-num {
        position: static;
        font-size: 1.6rem;
        margin-left: auto;
    }
    .flow-step p {
        flex-basis: 100%;
        margin-left: auto;
        font-size: 0.85rem;
    }
    .post-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.6rem;
        padding: 1.1rem 1.2rem;
    }
    .post-desc {
        white-space: normal;
        display: -webkit-box;
        -webkit-line-clamp: 2;
        -webkit-box-orient: vertical;
        overflow: hidden;
    }
    .post-meta {
        width: 100%;
        justify-content: space-between;
    }
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    .cta-box {
        padding: 2.4rem 1.6rem;
    }
    .cta-content h2 {
        font-size: 1.3rem;
    }
    .cta-btns {
        flex-direction: column;
        width: 100%;
    }
    .cta-btns .btn {
        width: 100%;
        justify-content: center;
    }
}
@media (max-width: 520px) {
    .container {
        padding-left: 1rem;
        padding-right: 1rem;
    }
    .header-inner {
        padding: 0.7rem 1rem;
    }
    .logo {
        font-size: 1.3rem;
    }
    .hero {
        min-height: 480px;
    }
    .hero-title {
        font-size: 1.9rem;
    }
    .hero-btns .btn {
        width: 100%;
        justify-content: center;
    }
    .category-grid {
        grid-template-columns: 1fr;
    }
    .category-card img {
        height: 190px;
    }
    .faq-q {
        padding: 1rem 1.2rem;
        font-size: 0.92rem;
    }
    .faq-a {
        padding: 0 1.2rem 1.1rem;
    }
    .about-lead {
        font-size: 1rem;
    }
}

/* roulang page: article */
:root {
  --c-bg: #0a0f1e;
  --c-bg-soft: #0d1426;
  --c-surface: #101a30;
  --c-surface-2: #16223d;
  --c-line: rgba(148, 163, 184, 0.16);
  --c-line-gold: rgba(201, 163, 90, 0.28);
  --c-gold: #c9a35a;
  --c-gold-bright: #e6c27a;
  --c-gold-deep: #a27e3c;
  --c-text: #e7ecf6;
  --c-muted: #93a1b8;
  --radius: 18px;
  --radius-sm: 12px;
  --shadow: 0 20px 55px rgba(0, 0, 0, 0.38);
  --shadow-sm: 0 10px 28px rgba(0, 0, 0, 0.25);
  --header-h: 78px;
  --font: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

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

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

a {
  color: inherit;
  text-decoration: none;
  transition: all 0.25s ease;
}

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

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

/* ============ 顶部导航 ============ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-h);
  background: rgba(10, 15, 30, 0.88);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--c-line-gold);
}

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

.brand {
  display: inline-flex;
  align-items: center;
  gap: 2px;
  font-size: 23px;
  font-weight: 800;
  letter-spacing: 0.5px;
  color: var(--c-text);
  white-space: nowrap;
}

.brand-ob {
  font-style: normal;
  color: var(--c-gold-bright);
  background: linear-gradient(135deg, #f0d489, #c9a35a);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.brand-mark {
  width: 38px;
  height: 38px;
  margin-right: 10px;
  border-radius: 11px;
  background: linear-gradient(135deg, var(--c-gold-bright), var(--c-gold-deep));
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: #0b1220;
  font-size: 18px;
  box-shadow: 0 6px 18px rgba(201, 163, 90, 0.35);
  flex-shrink: 0;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 6px;
}

.nav-links a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 18px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 15px;
  color: var(--c-muted);
  border: 1px solid transparent;
  transition: all 0.25s ease;
}

.nav-links a i {
  font-size: 14px;
  color: var(--c-gold);
  opacity: 0.85;
}

.nav-links a:hover {
  color: var(--c-text);
  background: rgba(201, 163, 90, 0.08);
  border-color: var(--c-line-gold);
}

.nav-links a.active {
  color: var(--c-text);
  background: linear-gradient(135deg, rgba(201, 163, 90, 0.18), rgba(201, 163, 90, 0.06));
  border-color: var(--c-line-gold);
  box-shadow: inset 0 0 0 1px rgba(201, 163, 90, 0.1);
}

.nav-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 11px 22px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--c-gold-bright), var(--c-gold-deep));
  color: #0b1220;
  font-weight: 700;
  font-size: 14px;
  white-space: nowrap;
  box-shadow: 0 8px 22px rgba(201, 163, 90, 0.3);
  transition: all 0.25s ease;
}

.nav-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 30px rgba(201, 163, 90, 0.42);
  color: #0b1220;
}

.nav-cta:active {
  transform: translateY(0);
}

/* ============ 文章页首屏横幅 ============ */
.page-hero {
  position: relative;
  padding: 88px 0 76px;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  border-bottom: 1px solid var(--c-line);
}

.page-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(10, 15, 30, 0.75), rgba(10, 15, 30, 0.9) 65%, var(--c-bg) 100%);
  z-index: 1;
}

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

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: var(--c-muted);
  margin-bottom: 28px;
}

.breadcrumb a {
  color: var(--c-gold);
}

.breadcrumb a:hover {
  color: var(--c-gold-bright);
}

.bc-sep {
  opacity: 0.5;
}

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

.page-hero-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 22px;
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 7px 16px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--c-line);
  font-size: 13px;
  font-weight: 500;
  color: var(--c-text);
  backdrop-filter: blur(8px);
}

.chip i {
  color: var(--c-gold);
  font-size: 12px;
}

.chip-gold {
  background: rgba(201, 163, 90, 0.16);
  border-color: var(--c-line-gold);
  color: var(--c-gold-bright);
  font-weight: 600;
}

.page-hero-title {
  font-size: clamp(30px, 4.4vw, 46px);
  line-height: 1.25;
  font-weight: 800;
  letter-spacing: 0.5px;
  max-width: 860px;
  background: linear-gradient(180deg, #ffffff, #cfd6e6);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.page-hero-desc {
  margin-top: 18px;
  max-width: 720px;
  font-size: 16px;
  line-height: 1.8;
  color: var(--c-muted);
}

/* ============ 正文区 ============ */
.article-main {
  padding: 56px 0 70px;
}

.article-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 340px;
  gap: 40px;
  align-items: start;
}

.article-card {
  background: var(--c-surface);
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  padding: 40px 44px;
  box-shadow: var(--shadow-sm);
}

.article-content {
  font-size: 16.5px;
  line-height: 1.95;
  color: #c6d0e0;
}

.article-content h2,
.article-content h3,
.article-content h4 {
  color: var(--c-text);
  margin-top: 32px;
  margin-bottom: 14px;
  font-weight: 700;
  line-height: 1.4;
}

.article-content h2 {
  font-size: 24px;
  padding-left: 16px;
  border-left: 4px solid var(--c-gold);
  border-radius: 2px;
}

.article-content h3 {
  font-size: 20px;
}

.article-content p {
  margin-bottom: 18px;
}

.article-content ul,
.article-content ol {
  margin: 0 0 20px 24px;
}

.article-content li {
  margin-bottom: 8px;
}

.article-content a {
  color: var(--c-gold-bright);
  border-bottom: 1px solid rgba(230, 194, 122, 0.3);
}

.article-content a:hover {
  border-bottom-color: var(--c-gold-bright);
}

.article-content img {
  border-radius: var(--radius-sm);
  margin: 26px 0;
  box-shadow: var(--shadow-sm);
}

.article-content blockquote {
  margin: 26px 0;
  padding: 18px 22px;
  border-left: 4px solid var(--c-gold);
  background: rgba(201, 163, 90, 0.07);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  color: var(--c-muted);
  font-style: normal;
}

.article-content code {
  background: rgba(255, 255, 255, 0.08);
  padding: 2px 8px;
  border-radius: 6px;
  font-size: 0.9em;
  color: var(--c-gold-bright);
}

/* 内容标签 */
.article-tags {
  margin-top: 36px;
  padding-top: 26px;
  border-top: 1px solid var(--c-line);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
}

.article-tags .tag-label {
  font-size: 14px;
  color: var(--c-muted);
  font-weight: 600;
}

.article-tags .tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  border-radius: 999px;
  border: 1px solid var(--c-line);
  background: rgba(255, 255, 255, 0.04);
  color: var(--c-text);
  font-size: 13px;
  transition: all 0.25s ease;
}

.article-tags .tag:hover {
  border-color: var(--c-line-gold);
  background: rgba(201, 163, 90, 0.1);
  color: var(--c-gold-bright);
  transform: translateY(-1px);
}

/* 未找到 */
.not-found {
  text-align: center;
  padding: 60px 20px;
}

.not-found i {
  font-size: 56px;
  color: var(--c-gold);
  opacity: 0.7;
  margin-bottom: 20px;
}

.not-found h2 {
  font-size: 26px;
  margin-bottom: 10px;
}

.not-found p {
  color: var(--c-muted);
  margin-bottom: 26px;
}

/* ============ 侧边栏 ============ */
.article-side {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.side-card {
  background: var(--c-surface);
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  padding: 26px 24px;
  box-shadow: var(--shadow-sm);
}

.side-title {
  font-size: 17px;
  font-weight: 700;
  color: var(--c-text);
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 18px;
}

.side-title::before {
  content: "";
  width: 5px;
  height: 20px;
  border-radius: 4px;
  background: linear-gradient(180deg, var(--c-gold-bright), var(--c-gold-deep));
}

.side-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.side-list li {
  border-bottom: 1px dashed var(--c-line);
}

.side-list li:last-child {
  border-bottom: none;
}

.side-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 13px 6px;
  border-radius: 10px;
  transition: all 0.25s ease;
}

.side-item-title {
  font-size: 14.5px;
  color: var(--c-muted);
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.side-item i {
  color: var(--c-gold);
  font-size: 13px;
  opacity: 0;
  transform: translateX(-6px);
  transition: all 0.25s ease;
  flex-shrink: 0;
}

.side-item:hover {
  background: rgba(201, 163, 90, 0.06);
  padding-left: 12px;
}

.side-item:hover .side-item-title {
  color: var(--c-text);
}

.side-item:hover i {
  opacity: 1;
  transform: translateX(0);
}

.side-card-icon {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  background: linear-gradient(135deg, rgba(201, 163, 90, 0.25), rgba(201, 163, 90, 0.06));
  border: 1px solid var(--c-line-gold);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  color: var(--c-gold-bright);
  margin-bottom: 16px;
}

.side-card h4 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 10px;
}

.side-card p {
  font-size: 14px;
  color: var(--c-muted);
  line-height: 1.75;
  margin-bottom: 18px;
}

.side-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.side-tags a {
  padding: 6px 13px;
  border-radius: 999px;
  border: 1px solid var(--c-line);
  font-size: 13px;
  color: var(--c-muted);
  transition: all 0.25s ease;
}

.side-tags a:hover {
  border-color: var(--c-line-gold);
  color: var(--c-gold-bright);
  background: rgba(201, 163, 90, 0.08);
}

/* ============ 按钮 ============ */
.btn-gold,
.btn-outline,
.btn-ghost {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 26px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 14.5px;
  cursor: pointer;
  transition: all 0.25s ease;
  border: none;
}

.btn-gold {
  background: linear-gradient(135deg, var(--c-gold-bright), var(--c-gold-deep));
  color: #0b1220;
  box-shadow: 0 8px 24px rgba(201, 163, 90, 0.3);
}

.btn-gold:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 32px rgba(201, 163, 90, 0.42);
  color: #0b1220;
}

.btn-outline {
  background: rgba(201, 163, 90, 0.08);
  border: 1px solid var(--c-line-gold);
  color: var(--c-gold-bright);
}

.btn-outline:hover {
  background: rgba(201, 163, 90, 0.16);
  transform: translateY(-2px);
}

.btn-ghost {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.18);
  color: var(--c-text);
}

.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.14);
  transform: translateY(-2px);
}

.w-full {
  width: 100%;
}

/* ============ 数据条 ============ */
.stats-section {
  background: var(--c-bg-soft);
  border-top: 1px solid var(--c-line);
  border-bottom: 1px solid var(--c-line);
  padding: 52px 0;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 30px;
}

.stat-item {
  text-align: center;
  padding: 10px 12px;
}

.stat-item strong {
  display: block;
  font-size: 30px;
  font-weight: 800;
  background: linear-gradient(135deg, var(--c-gold-bright), var(--c-gold-deep));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 6px;
}

.stat-item span {
  font-size: 14px;
  color: var(--c-muted);
}

/* ============ CTA ============ */
.cta-section {
  position: relative;
  padding: 76px 0;
  background-size: cover;
  background-position: center;
}

.cta-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, rgba(10, 15, 30, 0.92), rgba(13, 20, 38, 0.78), rgba(201, 163, 90, 0.1));
  z-index: 1;
}

.cta-box {
  position: relative;
  z-index: 2;
  text-align: center;
}

.cta-box h2 {
  font-size: clamp(26px, 3.8vw, 36px);
  font-weight: 800;
  margin-bottom: 14px;
  color: var(--c-text);
}

.cta-box p {
  font-size: 16px;
  color: var(--c-muted);
  max-width: 580px;
  margin: 0 auto 30px;
}

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

/* ============ 页脚 ============ */
.site-footer {
  background: #070b15;
  border-top: 1px solid var(--c-line-gold);
  padding: 62px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1.2fr;
  gap: 44px;
  padding-bottom: 44px;
}

.footer-brand h3 {
  font-size: 24px;
  font-weight: 800;
  color: var(--c-text);
  margin-bottom: 14px;
}

.footer-brand p {
  font-size: 14.5px;
  color: var(--c-muted);
  line-height: 1.85;
  max-width: 380px;
}

.footer-col h4 {
  font-size: 16px;
  font-weight: 700;
  color: var(--c-text);
  margin-bottom: 18px;
  position: relative;
  padding-bottom: 10px;
}

.footer-col h4::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 30px;
  height: 3px;
  border-radius: 4px;
  background: linear-gradient(90deg, var(--c-gold-bright), var(--c-gold-deep));
}

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

.footer-links a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14.5px;
  color: var(--c-muted);
  transition: all 0.25s ease;
}

.footer-links a i {
  color: var(--c-gold);
  font-size: 12px;
}

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

.footer-contact {
  font-size: 14.5px;
  color: var(--c-muted);
  line-height: 1.8;
  margin-bottom: 14px;
}

.footer-domain {
  font-size: 14px;
  color: var(--c-gold-bright);
  background: rgba(201, 163, 90, 0.08);
  border: 1px solid var(--c-line-gold);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  border-radius: 999px;
}

.footer-domain i {
  color: var(--c-gold);
}

.footer-bottom {
  border-top: 1px solid var(--c-line);
  padding: 22px 0;
  text-align: center;
}

.footer-bottom p {
  font-size: 13.5px;
  color: #6b7a93;
}

/* ============ 响应式 ============ */
@media (max-width: 1024px) {
  .article-grid {
    grid-template-columns: 1fr;
  }

  .article-side {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
  }

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

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

@media (max-width: 768px) {
  .container {
    padding: 0 18px;
  }

  .site-header {
    height: auto;
    min-height: var(--header-h);
  }

  .header-inner {
    flex-wrap: wrap;
    padding: 14px 0;
    gap: 12px;
  }

  .nav-links {
    order: 3;
    width: 100%;
    overflow-x: auto;
    padding-bottom: 4px;
    gap: 4px;
    scrollbar-width: thin;
  }

  .nav-links a {
    padding: 8px 16px;
    font-size: 14px;
    white-space: nowrap;
  }

  .nav-cta {
    padding: 10px 18px;
    font-size: 13px;
  }

  .page-hero {
    padding: 60px 0 50px;
  }

  .article-card {
    padding: 28px 22px;
  }

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

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 34px;
  }

  .cta-section {
    padding: 60px 0;
  }
}

@media (max-width: 520px) {
  .page-hero {
    padding: 44px 0 40px;
  }

  .breadcrumb {
    font-size: 13px;
  }

  .page-hero-badges {
    gap: 8px;
  }

  .chip {
    padding: 6px 12px;
    font-size: 12px;
  }

  .page-hero-title {
    font-size: 28px;
  }

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

  .article-card {
    padding: 22px 16px;
  }

  .article-content {
    font-size: 16px;
  }

  .article-content h2 {
    font-size: 21px;
  }

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

  .stat-item strong {
    font-size: 24px;
  }

  .cta-actions {
    flex-direction: column;
    width: 100%;
  }

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

  .brand {
    font-size: 20px;
  }

  .brand-mark {
    width: 34px;
    height: 34px;
    font-size: 15px;
  }
}

/* roulang page: category1 */
:root {
            --c-dark: #070b12;
            --c-dark-2: #0d1420;
            --c-card: #131c2e;
            --c-card-2: #182338;
            --c-gold: #c9a86a;
            --c-gold-bright: #edcf92;
            --c-gold-dark: #8f7548;
            --c-text: #e9edf4;
            --c-text-2: #a8b3c7;
            --c-muted: #6b7a90;
            --c-border: rgba(255, 255, 255, 0.08);
            --c-border-hover: rgba(201, 168, 106, 0.35);
            --radius: 16px;
            --radius-sm: 10px;
            --shadow: 0 18px 40px rgba(0,0,0,0.45);
            --shadow-gold: 0 8px 30px rgba(201,168,106,0.15);
            --transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
        }

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

        html {
            scroll-behavior: smooth;
            scroll-padding-top: 86px;
        }

        body {
            font-family: 'Inter', 'PingFang SC', 'Microsoft YaHei', sans-serif;
            background-color: var(--c-dark);
            color: var(--c-text);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }

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

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

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

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

        /* ========== Header / Nav ========== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 100;
            background: rgba(7, 11, 18, 0.92);
            backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--c-border);
            transition: var(--transition);
        }

        .site-header.scrolled {
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.5);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 74px;
            gap: 24px;
        }

        .logo {
            flex-shrink: 0;
        }

        .logo a {
            font-size: 26px;
            font-weight: 800;
            letter-spacing: 1px;
            color: var(--c-text);
            display: flex;
            align-items: center;
            gap: 2px;
        }

        .logo em {
            font-style: normal;
            color: var(--c-gold-bright);
            font-weight: 900;
            font-size: 28px;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
            margin: 0 auto;
            background: rgba(255, 255, 255, 0.04);
            padding: 5px;
            border-radius: 40px;
            border: 1px solid var(--c-border);
        }

        .nav-links a {
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 9px 22px;
            border-radius: 32px;
            font-size: 15px;
            font-weight: 500;
            color: var(--c-text-2);
            transition: var(--transition);
            white-space: nowrap;
        }

        .nav-links a i {
            font-size: 14px;
            color: var(--c-gold);
            opacity: 0.7;
            transition: var(--transition);
        }

        .nav-links a:hover {
            color: var(--c-text);
            background: rgba(255, 255, 255, 0.07);
        }

        .nav-links a.active {
            color: var(--c-dark);
            font-weight: 600;
            background: linear-gradient(135deg, var(--c-gold-bright), var(--c-gold));
        }

        .nav-links a.active i {
            color: var(--c-dark);
            opacity: 0.9;
        }

        .header-cta {
            flex-shrink: 0;
        }

        .btn-header-cta {
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 10px 24px;
            border-radius: 32px;
            font-size: 14px;
            font-weight: 700;
            color: var(--c-dark);
            background: linear-gradient(135deg, var(--c-gold-bright), var(--c-gold));
            border: none;
            cursor: pointer;
            transition: var(--transition);
            box-shadow: 0 4px 18px rgba(201, 168, 106, 0.25);
        }

        .btn-header-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 30px rgba(201, 168, 106, 0.35);
        }

        .mobile-menu-btn {
            display: none;
            background: transparent;
            border: 1px solid var(--c-border);
            border-radius: 10px;
            width: 42px;
            height: 42px;
            color: var(--c-text);
            font-size: 18px;
            cursor: pointer;
            align-items: center;
            justify-content: center;
            transition: var(--transition);
        }

        .mobile-menu-btn:hover {
            border-color: var(--c-border-hover);
            color: var(--c-gold-bright);
        }

        /* ========== Hero / Page Banner ========== */
        .page-hero {
            position: relative;
            background-size: cover;
            background-position: center;
            padding: 170px 0 90px;
            overflow: hidden;
        }

        .page-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(7, 11, 18, 0.95) 0%, rgba(7, 11, 18, 0.82) 50%, rgba(7, 11, 18, 0.65) 100%);
            z-index: 1;
        }

        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 780px;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 7px 18px;
            border-radius: 32px;
            background: rgba(201, 168, 106, 0.12);
            border: 1px solid rgba(201, 168, 106, 0.3);
            color: var(--c-gold-bright);
            font-size: 14px;
            font-weight: 600;
            letter-spacing: 1px;
            margin-bottom: 22px;
            backdrop-filter: blur(8px);
        }

        .hero-badge i {
            font-size: 13px;
        }

        .hero-content h1 {
            font-size: 46px;
            font-weight: 800;
            line-height: 1.25;
            color: var(--c-text);
            margin-bottom: 18px;
            letter-spacing: 1px;
        }

        .hero-content h1 span {
            color: var(--c-gold-bright);
        }

        .hero-content p {
            font-size: 16px;
            color: var(--c-text-2);
            line-height: 1.8;
            margin-bottom: 32px;
            max-width: 620px;
        }

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

        .btn {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 13px 30px;
            border-radius: 40px;
            font-size: 15px;
            font-weight: 600;
            border: none;
            cursor: pointer;
            transition: var(--transition);
        }

        .btn-gold {
            color: var(--c-dark);
            background: linear-gradient(135deg, var(--c-gold-bright), var(--c-gold));
            box-shadow: 0 6px 24px rgba(201, 168, 106, 0.25);
        }

        .btn-gold:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 36px rgba(201, 168, 106, 0.35);
        }

        .btn-outline {
            color: var(--c-text);
            background: transparent;
            border: 1.5px solid var(--c-border);
            backdrop-filter: blur(8px);
        }

        .btn-outline:hover {
            border-color: var(--c-gold);
            color: var(--c-gold-bright);
            transform: translateY(-3px);
        }

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

        .section-head {
            text-align: center;
            margin-bottom: 52px;
        }

        .section-tag {
            display: inline-block;
            padding: 5px 16px;
            border-radius: 24px;
            background: rgba(201, 168, 106, 0.1);
            border: 1px solid rgba(201, 168, 106, 0.25);
            color: var(--c-gold-bright);
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 2px;
            margin-bottom: 14px;
            text-transform: uppercase;
        }

        .section-title {
            font-size: 34px;
            font-weight: 800;
            color: var(--c-text);
            line-height: 1.3;
            margin-bottom: 14px;
        }

        .section-subtitle {
            font-size: 16px;
            color: var(--c-text-2);
            max-width: 650px;
            margin: 0 auto;
            line-height: 1.7;
        }

        /* ========== Guide Index Cards ========== */
        .guide-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .guide-card {
            position: relative;
            border-radius: var(--radius);
            overflow: hidden;
            background: var(--c-card);
            border: 1px solid var(--c-border);
            transition: var(--transition);
            min-height: 360px;
            display: flex;
            flex-direction: column;
        }

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

        .guide-card-img {
            height: 180px;
            overflow: hidden;
            position: relative;
        }

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

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

        .guide-card-img::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, var(--c-card) 0%, transparent 60%);
        }

        .guide-card-body {
            padding: 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            gap: 12px;
        }

        .guide-card-body h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--c-text);
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .guide-card-body h3 i {
            color: var(--c-gold);
            font-size: 16px;
        }

        .guide-card-body p {
            font-size: 14px;
            color: var(--c-text-2);
            line-height: 1.65;
            flex: 1;
        }

        .guide-card-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--c-gold);
            font-size: 14px;
            font-weight: 600;
            transition: var(--transition);
        }

        .guide-card-link:hover {
            color: var(--c-gold-bright);
            gap: 10px;
        }

        /* ========== 注册流程 Timeline ========== */
        .steps-wrap {
            position: relative;
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 30px;
            margin-top: 20px;
        }

        .steps-wrap::before {
            content: '';
            position: absolute;
            top: 32px;
            left: 8%;
            right: 8%;
            height: 2px;
            background: linear-gradient(90deg, rgba(201,168,106,0.05), rgba(201,168,106,0.4), rgba(201,168,106,0.05));
            border-radius: 2px;
        }

        .step-item {
            position: relative;
            text-align: center;
            padding: 0 6px;
        }

        .step-number {
            width: 64px;
            height: 64px;
            margin: 0 auto 20px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--c-card-2), var(--c-card));
            border: 2px solid var(--c-gold);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            font-weight: 800;
            color: var(--c-gold-bright);
            position: relative;
            z-index: 1;
            box-shadow: 0 0 0 6px rgba(201, 168, 106, 0.08);
        }

        .step-item h4 {
            font-size: 16px;
            font-weight: 700;
            color: var(--c-text);
            margin-bottom: 10px;
        }

        .step-item p {
            font-size: 14px;
            color: var(--c-text-2);
            line-height: 1.65;
        }

        /* ========== 图文内容区块 ========== */
        .feature-block {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 56px;
            align-items: center;
        }

        .feature-img {
            position: relative;
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
        }

        .feature-img img {
            width: 100%;
            height: 420px;
            object-fit: cover;
        }

        .feature-img::after {
            content: '';
            position: absolute;
            inset: 0;
            border: 1px solid rgba(255, 255, 255, 0.06);
            border-radius: var(--radius);
        }

        .feature-img-badge {
            position: absolute;
            top: 20px;
            left: 20px;
            z-index: 2;
            padding: 7px 16px;
            border-radius: 24px;
            background: rgba(7, 11, 18, 0.75);
            backdrop-filter: blur(12px);
            border: 1px solid rgba(201, 168, 106, 0.3);
            color: var(--c-gold-bright);
            font-size: 13px;
            font-weight: 600;
        }

        .feature-content h3 {
            font-size: 28px;
            font-weight: 800;
            color: var(--c-text);
            line-height: 1.4;
            margin-bottom: 18px;
        }

        .feature-content h3 span {
            color: var(--c-gold-bright);
        }

        .feature-list {
            list-style: none;
            margin-top: 20px;
        }

        .feature-list li {
            display: flex;
            gap: 14px;
            padding: 14px 0;
            border-bottom: 1px solid var(--c-border);
        }

        .feature-list li:last-child {
            border-bottom: none;
        }

        .feature-list i {
            color: var(--c-gold);
            font-size: 16px;
            margin-top: 3px;
            flex-shrink: 0;
        }

        .feature-list strong {
            display: block;
            font-size: 16px;
            font-weight: 700;
            color: var(--c-text);
            margin-bottom: 4px;
        }

        .feature-list span {
            font-size: 14px;
            color: var(--c-text-2);
            line-height: 1.6;
        }

        /* ========== 积分排行 ========== */
        .ranking-wrap {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 28px;
        }

        .table-card {
            background: var(--c-card);
            border: 1px solid var(--c-border);
            border-radius: var(--radius);
            overflow: hidden;
        }

        .table-card-header {
            padding: 20px 24px;
            border-bottom: 1px solid var(--c-border);
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

        .table-card-header h4 {
            font-size: 18px;
            font-weight: 700;
            color: var(--c-text);
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .table-card-header h4 i {
            color: var(--c-gold);
        }

        .table-card-header .table-badge {
            padding: 4px 12px;
            border-radius: 16px;
            background: rgba(201, 168, 106, 0.1);
            border: 1px solid rgba(201, 168, 106, 0.2);
            color: var(--c-gold-bright);
            font-size: 12px;
            font-weight: 600;
        }

        .info-table {
            width: 100%;
            border-collapse: collapse;
        }

        .info-table th {
            padding: 12px 24px;
            font-size: 13px;
            font-weight: 600;
            color: var(--c-muted);
            text-align: left;
            background: rgba(255, 255, 255, 0.02);
            border-bottom: 1px solid var(--c-border);
            letter-spacing: 0.5px;
        }

        .info-table td {
            padding: 14px 24px;
            font-size: 14px;
            color: var(--c-text-2);
            border-bottom: 1px solid rgba(255, 255, 255, 0.04);
        }

        .info-table tr:last-child td {
            border-bottom: none;
        }

        .info-table tr:hover td {
            background: rgba(255, 255, 255, 0.02);
            color: var(--c-text);
        }

        .rank-icon {
            color: var(--c-gold);
            margin-right: 6px;
        }

        .rank-highlight {
            color: var(--c-gold-bright);
            font-weight: 700;
        }

        .rank-stats {
            display: grid;
            grid-template-columns: 1fr;
            gap: 16px;
        }

        .stat-card {
            background: var(--c-card);
            border: 1px solid var(--c-border);
            border-radius: var(--radius);
            padding: 22px;
            display: flex;
            align-items: center;
            gap: 16px;
            transition: var(--transition);
        }

        .stat-card:hover {
            border-color: var(--c-border-hover);
            transform: translateX(4px);
        }

        .stat-icon {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            background: linear-gradient(135deg, rgba(201, 168, 106, 0.18), rgba(201, 168, 106, 0.06));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            color: var(--c-gold);
            flex-shrink: 0;
        }

        .stat-info h5 {
            font-size: 14px;
            font-weight: 600;
            color: var(--c-text);
            margin-bottom: 3px;
        }

        .stat-info p {
            font-size: 13px;
            color: var(--c-text-2);
            line-height: 1.5;
        }

        /* ========== 安全专区 ========== */
        .security-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .security-card {
            background: var(--c-card);
            border: 1px solid var(--c-border);
            border-radius: var(--radius);
            padding: 28px 24px;
            text-align: center;
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }

        .security-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, transparent, var(--c-gold), transparent);
            opacity: 0;
            transition: var(--transition);
        }

        .security-card:hover {
            transform: translateY(-5px);
            border-color: var(--c-border-hover);
            box-shadow: var(--shadow);
        }

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

        .security-icon {
            width: 56px;
            height: 56px;
            margin: 0 auto 18px;
            border-radius: 14px;
            background: linear-gradient(135deg, rgba(201, 168, 106, 0.16), rgba(201, 168, 106, 0.04));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            color: var(--c-gold);
        }

        .security-card h4 {
            font-size: 16px;
            font-weight: 700;
            color: var(--c-text);
            margin-bottom: 10px;
        }

        .security-card p {
            font-size: 14px;
            color: var(--c-text-2);
            line-height: 1.65;
        }

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

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

        .faq-item:hover {
            border-color: var(--c-border-hover);
        }

        .faq-item.open {
            border-color: rgba(201, 168, 106, 0.3);
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 20px 24px;
            cursor: pointer;
            font-size: 16px;
            font-weight: 600;
            color: var(--c-text);
            transition: var(--transition);
            background: transparent;
            border: none;
            text-align: left;
            width: 100%;
        }

        .faq-question:hover {
            color: var(--c-gold-bright);
        }

        .faq-question i {
            color: var(--c-gold);
            transition: transform 0.3s ease;
            flex-shrink: 0;
        }

        .faq-item.open .faq-question i {
            transform: rotate(180deg);
        }

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

        .faq-answer-inner {
            padding: 0 24px 20px;
            font-size: 14px;
            color: var(--c-text-2);
            line-height: 1.75;
            border-top: 1px solid transparent;
        }

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

        .faq-item.open .faq-answer-inner {
            border-top-color: var(--c-border);
            padding-top: 14px;
        }

        /* ========== CTA 区块 ========== */
        .cta-section {
            position: relative;
            background-size: cover;
            background-position: center;
            padding: 80px 0;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(120deg, rgba(7, 11, 18, 0.95), rgba(7, 11, 18, 0.82));
        }

        .cta-content {
            position: relative;
            z-index: 1;
            text-align: center;
            max-width: 700px;
            margin: 0 auto;
        }

        .cta-content h2 {
            font-size: 36px;
            font-weight: 800;
            color: var(--c-text);
            margin-bottom: 16px;
        }

        .cta-content h2 span {
            color: var(--c-gold-bright);
        }

        .cta-content p {
            font-size: 16px;
            color: var(--c-text-2);
            margin-bottom: 30px;
            line-height: 1.7;
        }

        /* ========== Footer ========== */
        .site-footer {
            background: var(--c-dark-2);
            border-top: 1px solid var(--c-border);
            padding: 60px 0 24px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr 0.9fr;
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-brand h3 {
            font-size: 24px;
            font-weight: 800;
            color: var(--c-text);
            margin-bottom: 12px;
        }

        .footer-brand p {
            font-size: 14px;
            color: var(--c-text-2);
            line-height: 1.7;
            max-width: 320px;
        }

        .footer-col h4 {
            font-size: 16px;
            font-weight: 700;
            color: var(--c-text);
            margin-bottom: 16px;
        }

        .footer-links {
            list-style: none;
        }

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

        .footer-links a {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--c-text-2);
            transition: var(--transition);
        }

        .footer-links a i {
            font-size: 12px;
            color: var(--c-gold);
            opacity: 0.7;
        }

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

        .footer-contact {
            font-size: 14px;
            color: var(--c-text-2);
            line-height: 1.7;
            margin-bottom: 12px;
        }

        .footer-domain {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 8px 16px;
            border-radius: 8px;
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid var(--c-border);
            font-size: 13px;
            color: var(--c-gold);
            font-weight: 500;
        }

        .footer-bottom {
            border-top: 1px solid var(--c-border);
            padding-top: 24px;
            text-align: center;
        }

        .footer-bottom p {
            font-size: 13px;
            color: var(--c-muted);
        }

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

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

            .steps-wrap {
                grid-template-columns: repeat(2, 1fr);
                gap: 40px 24px;
            }

            .steps-wrap::before {
                display: none;
            }

            .feature-block {
                grid-template-columns: 1fr;
                gap: 36px;
            }

            .ranking-wrap {
                grid-template-columns: 1fr;
            }
        }

        @media (max-width: 768px) {
            .hero-content h1 {
                font-size: 32px;
            }

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

            .nav-links {
                position: fixed;
                top: 70px;
                left: 16px;
                right: 16px;
                flex-direction: column;
                background: rgba(13, 20, 32, 0.98);
                backdrop-filter: blur(20px);
                border: 1px solid var(--c-border);
                border-radius: 16px;
                padding: 12px;
                gap: 4px;
                display: none;
                z-index: 99;
                box-shadow: 0 20px 60px rgba(0, 0, 0, 0.6);
            }

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

            .nav-links a {
                padding: 12px 16px;
                width: 100%;
                border-radius: 10px;
            }

            .header-cta {
                margin-left: auto;
            }

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

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

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 30px;
            }

            .page-hero {
                padding: 130px 0 60px;
            }
        }

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

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

            .steps-wrap {
                grid-template-columns: 1fr;
            }

            .feature-img img {
                height: 280px;
            }

            .hero-content h1 {
                font-size: 26px;
            }

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

            .container {
                padding: 0 16px;
            }

            .section {
                padding: 60px 0;
            }

            .logo a {
                font-size: 20px;
            }

            .logo em {
                font-size: 22px;
            }

            .table-card-header,
            .info-table th,
            .info-table td {
                padding-left: 16px;
                padding-right: 16px;
            }
        }

        /* ========== 焦点可访问性 ========== */
        a:focus-visible,
        button:focus-visible {
            outline: 2px solid var(--c-gold);
            outline-offset: 3px;
        }

        /* ========== 滚动进度条 ========== */
        .scroll-progress {
            position: fixed;
            top: 0;
            left: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--c-gold), var(--c-gold-bright));
            z-index: 200;
            width: 0;
            transition: width 0.1s;
        }