/* roulang page: index */
:root {
    --color-primary: #0b1026;
    --color-surface: #111a33;
    --color-surface2: #1a2340;
    --color-accent: #f59e0b;
    --color-accent2: #fbbf24;
    --color-content: #e2e8f0;
    --color-soft: #94a3b8;
    --color-line: rgba(255,255,255,0.08);
    --radius: 16px;
    --radius-lg: 20px;
    --shadow-card: 0 8px 32px rgba(0,0,0,0.35);
    --shadow-hover: 0 12px 40px rgba(0,0,0,0.5);
}
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}
html {
    scroll-behavior: smooth;
}
body {
    font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Segoe UI", "Helvetica Neue", sans-serif;
    line-height: 1.6;
    background: #070b1a;
    color: var(--color-content);
    overflow-x: hidden;
}
a {
    text-decoration: none;
    color: inherit;
}
img {
    max-width: 100%;
    display: block;
}
button, input {
    font-family: inherit;
    border: none;
    outline: none;
}
.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 1.5rem;
}
.section-space {
    padding: 5rem 0;
}
@media (max-width:768px) {
    .section-space {
        padding: 3.5rem 0;
    }
}
/* ===== Header / Nav ===== */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background: rgba(7, 11, 26, 0.92);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid rgba(255,255,255,0.06);
    transition: all .3s ease;
}
.site-header.scrolled {
    background: rgba(7, 11, 26, 0.98);
    box-shadow: 0 4px 24px rgba(0,0,0,0.5);
}
.nav-link {
    position: relative;
    font-size: 0.925rem;
    font-weight: 500;
    color: #cbd5e1;
    padding: 0.35rem 0.25rem;
    transition: color .2s ease;
}
.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-accent);
    transition: width .3s ease;
    border-radius: 2px;
}
.nav-link:hover {
    color: #fff;
}
.nav-link:hover::after {
    width: 100%;
}
.nav-link.active {
    color: var(--color-accent);
}
.nav-link.active::after {
    width: 100%;
}
.logo {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.3rem 1rem;
    border-radius: var(--radius);
    transition: transform .3s ease;
}
.logo:hover {
    transform: scale(1.03);
}
.logo-icon {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #f59e0b, #ef4444);
    border-radius: 10px;
    color: #fff;
    font-size: 1rem;
    box-shadow: 0 4px 14px rgba(245,158,11,0.35);
}
.logo-text {
    font-size: 1.1rem;
    font-weight: 700;
    letter-spacing: 0.02em;
    background: linear-gradient(90deg, #e2e8f0, #fbbf24);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    white-space: nowrap;
}
.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.65rem 1.5rem;
    background: linear-gradient(135deg, #f59e0b, #d97706);
    color: #0b1026;
    font-weight: 600;
    font-size: 0.9rem;
    border-radius: 999px;
    transition: all .3s ease;
    box-shadow: 0 4px 16px rgba(245,158,11,0.25);
}
.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 28px rgba(245,158,11,0.4);
}
.btn-primary:active {
    transform: translateY(0);
    box-shadow: 0 2px 8px rgba(245,158,11,0.2);
}
.btn-outline {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.65rem 1.5rem;
    border: 1.5px solid rgba(255,255,255,0.2);
    color: #e2e8f0;
    font-weight: 500;
    font-size: 0.9rem;
    border-radius: 999px;
    transition: all .3s ease;
    background: transparent;
}
.btn-outline:hover {
    border-color: var(--color-accent);
    color: var(--color-accent);
    transform: translateY(-2px);
}
.mobile-menu {
    display: none;
    flex-direction: column;
    padding: 1rem 1.5rem;
    gap: 0.15rem;
    background: rgba(7,11,26,0.98);
    border-top: 1px solid rgba(255,255,255,0.06);
}
.mobile-menu.open {
    display: flex;
}
.mobile-link {
    padding: 0.8rem 0.5rem;
    color: #94a3b8;
    font-size: 1rem;
    font-weight: 500;
    border-bottom: 1px solid rgba(255,255,255,0.04);
    transition: all .2s;
}
.mobile-link:last-child {
    border-bottom: none;
}
.mobile-link:hover {
    color: var(--color-accent);
    padding-left: 1rem;
}
.mobile-link.active {
    color: var(--color-accent);
}
/* ===== Hero ===== */
.hero-section {
    position: relative;
    min-height: 92vh;
    display: flex;
    align-items: center;
    background-image: url('/assets/images/backpic/back-1.png');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    padding: 8rem 0 4rem;
}
.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(7,11,26,0.6) 0%, rgba(7,11,26,0.7) 50%, rgba(7,11,26,0.95) 100%);
}
.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.4rem 1.2rem;
    background: rgba(245,158,11,0.15);
    border: 1px solid rgba(245,158,11,0.3);
    color: var(--color-accent);
    font-size: 0.8rem;
    font-weight: 500;
    border-radius: 999px;
    letter-spacing: 0.05em;
}
.hero-title {
    font-size: clamp(2.2rem, 6vw, 4.2rem);
    font-weight: 800;
    line-height: 1.15;
    letter-spacing: -0.02em;
    color: #fff;
    background: linear-gradient(180deg, #fff 40%, rgba(245,158,11,0.9));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-top: 1.5rem;
}
.hero-desc {
    font-size: 1.06rem;
    color: #cbd5e1;
    line-height: 1.7;
    max-width: 560px;
    margin-top: 1.5rem;
}
.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-top: 2.5rem;
}
.hero-stats {
    display: grid;
    grid-template-columns: repeat(4, minmax(0,1fr));
    gap: 1rem;
    margin-top: 4rem;
    padding: 1.8rem;
    background: rgba(255,255,255,0.06);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: var(--radius-lg);
    backdrop-filter: blur(12px);
}
.hero-stat {
    text-align: center;
}
.hero-stat .num {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--color-accent);
    letter-spacing: -0.02em;
}
.hero-stat .label {
    font-size: 0.8rem;
    color: #94a3b8;
    margin-top: 0.2rem;
}
@media (max-width:768px) {
    .hero-section {
        min-height: 80vh;
        padding-top: 6rem;
    }
    .hero-stats {
        grid-template-columns: repeat(2, 1fr);
        gap: 0.8rem;
        padding: 1.2rem;
    }
}
/* ===== Section headers ===== */
.sec-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(245,158,11,0.1);
    color: var(--color-accent);
    font-size: 0.78rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    padding: 0.35rem 1rem;
    border-radius: 999px;
    border: 1px solid rgba(245,158,11,0.2);
    text-transform: uppercase;
}
.sec-title {
    font-size: clamp(1.6rem, 3vw, 2.4rem);
    font-weight: 700;
    line-height: 1.2;
    color: #fff;
    margin-top: 0.8rem;
}
.sec-subtitle {
    color: var(--color-soft);
    font-size: 1rem;
    line-height: 1.7;
    margin-top: 0.6rem;
    max-width: 640px;
}
/* ===== About ===== */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3.5rem;
    align-items: center;
}
.about-image {
    border-radius: var(--radius-lg);
    overflow: hidden;
    position: relative;
    box-shadow: var(--shadow-card);
    border: 1px solid rgba(255,255,255,0.08);
}
.about-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform .6s ease;
}
.about-image:hover img {
    transform: scale(1.03);
}
.about-tag {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.3rem 0.9rem;
    background: rgba(245,158,11,0.15);
    color: var(--color-accent);
    border-radius: 999px;
    font-size: 0.78rem;
    font-weight: 600;
}
.about-list {
    margin-top: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}
.about-item {
    display: flex;
    gap: 0.9rem;
    align-items: flex-start;
    padding: 0.9rem 1.1rem;
    background: rgba(255,255,255,0.03);
    border: 1px solid rgba(255,255,255,0.06);
    border-radius: var(--radius);
    transition: all .3s;
}
.about-item:hover {
    background: rgba(245,158,11,0.06);
    border-color: rgba(245,158,11,0.2);
    transform: translateX(4px);
}
.about-item i {
    color: var(--color-accent);
    font-size: 1.1rem;
    margin-top: 0.2rem;
}
.about-item h4 {
    color: #fff;
    font-size: 0.95rem;
    font-weight: 600;
}
.about-item p {
    color: var(--color-soft);
    font-size: 0.85rem;
    margin-top: 0.2rem;
}
@media (max-width:1024px) {
    .about-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
}
/* ===== Category Cards ===== */
.cat-card {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid rgba(255,255,255,0.08);
    box-shadow: var(--shadow-card);
    transition: all .35s ease;
    min-height: 380px;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    background: var(--color-surface);
}
.cat-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-hover);
    border-color: rgba(245,158,11,0.3);
}
.cat-card-image {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform .6s ease;
}
.cat-card:hover .cat-card-image {
    transform: scale(1.06);
}
.cat-card-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent 30%, rgba(7,11,26,0.7) 70%, rgba(7,11,26,0.95) 100%);
}
.cat-card-content {
    position: relative;
    z-index: 2;
    padding: 2rem 1.8rem;
}
.cat-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(245,158,11,0.2);
    border: 1px solid rgba(245,158,11,0.4);
    color: var(--color-accent);
    border-radius: 12px;
    font-size: 1.2rem;
    margin-bottom: 1rem;
}
.cat-card h3 {
    font-size: 1.3rem;
    font-weight: 700;
    color: #fff;
}
.cat-card p {
    color: #cbd5e1;
    font-size: 0.88rem;
    line-height: 1.6;
    margin-top: 0.5rem;
}
.cat-link {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    color: var(--color-accent);
    font-size: 0.85rem;
    font-weight: 600;
    margin-top: 1rem;
    transition: gap .3s;
}
.cat-link:hover {
    gap: 0.7rem;
}
/* ===== Post Cards / Latest ===== */
.post-card {
    background: var(--color-surface);
    border: 1px solid rgba(255,255,255,0.06);
    border-radius: var(--radius);
    padding: 1.6rem;
    transition: all .35s ease;
    height: 100%;
    display: flex;
    flex-direction: column;
}
.post-card:hover {
    background: var(--color-surface2);
    border-color: rgba(245,158,11,0.25);
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
}
.post-badge {
    display: inline-block;
    padding: 0.2rem 0.7rem;
    background: rgba(245,158,11,0.12);
    border: 1px solid rgba(245,158,11,0.25);
    color: var(--color-accent);
    font-size: 0.72rem;
    font-weight: 600;
    border-radius: 999px;
    letter-spacing: 0.03em;
}
.post-time {
    font-size: 0.78rem;
    color: var(--color-soft);
}
.post-card h3 {
    font-size: 1.05rem;
    font-weight: 600;
    color: #fff;
    line-height: 1.5;
    margin-top: 0.9rem;
    transition: color .3s;
}
.post-card:hover h3 {
    color: var(--color-accent);
}
.post-card p {
    font-size: 0.85rem;
    color: var(--color-soft);
    line-height: 1.65;
    margin-top: 0.5rem;
    flex-grow: 1;
}
.post-more {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--color-accent);
    margin-top: 1rem;
    transition: gap .3s;
}
.post-more:hover {
    gap: 0.7rem;
}
.post-empty {
    grid-column: 1 / -1;
    text-align: center;
    padding: 3rem;
    background: var(--color-surface);
    border-radius: var(--radius);
    color: var(--color-soft);
    border: 1px dashed rgba(255,255,255,0.15);
}
/* ===== Stats ===== */
.stats-section {
    background: linear-gradient(135deg, rgba(245,158,11,0.06), rgba(239,68,68,0.04));
    border-top: 1px solid rgba(255,255,255,0.05);
    border-bottom: 1px solid rgba(255,255,255,0.05);
}
.stat-card {
    text-align: center;
    padding: 2rem 1rem;
    background: rgba(255,255,255,0.03);
    border: 1px solid rgba(255,255,255,0.06);
    border-radius: var(--radius);
    transition: all .35s;
}
.stat-card:hover {
    background: rgba(245,158,11,0.08);
    border-color: rgba(245,158,11,0.2);
    transform: translateY(-4px);
}
.stat-card .icon {
    width: 48px;
    height: 48px;
    margin: 0 auto 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(245,158,11,0.15);
    color: var(--color-accent);
    border-radius: 50%;
    font-size: 1.2rem;
}
.stat-card .num {
    font-size: 2.2rem;
    font-weight: 800;
    color: #fff;
    letter-spacing: -0.02em;
}
.stat-card .label {
    font-size: 0.85rem;
    color: var(--color-soft);
    margin-top: 0.3rem;
}
/* ===== Process ===== */
.process-step {
    text-align: center;
    padding: 2rem 1.2rem;
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    border: 1px solid rgba(255,255,255,0.06);
    transition: all .35s;
    position: relative;
}
.process-step:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
    border-color: rgba(245,158,11,0.2);
}
.step-num {
    width: 44px;
    height: 44px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #f59e0b, #d97706);
    color: #0b1026;
    font-weight: 700;
    font-size: 1.1rem;
    border-radius: 50%;
    box-shadow: 0 6px 20px rgba(245,158,11,0.3);
}
.step-icon {
    width: 44px;
    height: 44px;
    margin: 1rem auto 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(245,158,11,0.1);
    color: var(--color-accent);
    border-radius: 12px;
    font-size: 1.2rem;
}
.process-step h3 {
    font-size: 1.05rem;
    font-weight: 600;
    color: #fff;
    margin-top: 1rem;
}
.process-step p {
    font-size: 0.85rem;
    color: var(--color-soft);
    line-height: 1.6;
    margin-top: 0.5rem;
}
/* ===== Featured Cards ===== */
.featured-card {
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid rgba(255,255,255,0.06);
    background: var(--color-surface);
    transition: all .35s;
    display: flex;
    flex-direction: column;
}
.featured-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-hover);
    border-color: rgba(245,158,11,0.25);
}
.featured-img {
    position: relative;
    overflow: hidden;
    height: 220px;
}
.featured-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform .6s;
}
.featured-card:hover .featured-img img {
    transform: scale(1.05);
}
.featured-img .badge-overlay {
    position: absolute;
    top: 1rem;
    left: 1rem;
    padding: 0.25rem 0.8rem;
    background: rgba(7,11,26,0.7);
    backdrop-filter: blur(8px);
    color: var(--color-accent);
    font-size: 0.72rem;
    font-weight: 600;
    border-radius: 999px;
    border: 1px solid rgba(245,158,11,0.3);
}
.featured-body {
    padding: 1.5rem;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}
.featured-body h3 {
    font-size: 1.05rem;
    font-weight: 600;
    color: #fff;
    line-height: 1.5;
}
.featured-body p {
    font-size: 0.85rem;
    color: var(--color-soft);
    line-height: 1.65;
    margin-top: 0.5rem;
    flex-grow: 1;
}
.featured-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid rgba(255,255,255,0.06);
    font-size: 0.78rem;
    color: var(--color-soft);
}
/* ===== FAQ ===== */
.faq-item {
    background: var(--color-surface);
    border: 1px solid rgba(255,255,255,0.06);
    border-radius: var(--radius);
    overflow: hidden;
    transition: all .3s;
}
.faq-item.open {
    border-color: rgba(245,158,11,0.25);
    background: var(--color-surface2);
}
.faq-btn {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.2rem 1.5rem;
    background: transparent;
    color: #fff;
    font-size: 0.95rem;
    font-weight: 500;
    text-align: left;
    cursor: pointer;
    transition: color .3s;
}
.faq-btn:hover {
    color: var(--color-accent);
}
.faq-btn i {
    color: var(--color-accent);
    transition: transform .3s;
    font-size: 0.85rem;
}
.faq-item.open .faq-btn i {
    transform: rotate(180deg);
}
.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height .4s ease;
}
.faq-answer-inner {
    padding: 0 1.5rem 1.3rem;
    font-size: 0.88rem;
    color: var(--color-soft);
    line-height: 1.7;
}
/* ===== CTA ===== */
.cta-section {
    position: relative;
    background-image: url('/assets/images/backpic/back-2.png');
    background-size: cover;
    background-position: center;
    padding: 6rem 0;
}
.cta-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(7,11,26,0.9), rgba(17,26,51,0.85));
}
.cta-content {
    position: relative;
    z-index: 1;
    text-align: center;
}
.cta-title {
    font-size: clamp(1.8rem, 4vw, 3rem);
    font-weight: 800;
    color: #fff;
    line-height: 1.2;
}
.cta-desc {
    color: #cbd5e1;
    max-width: 480px;
    margin: 1rem auto 0;
    font-size: 1rem;
    line-height: 1.7;
}
/* ===== Footer ===== */
.site-footer {
    background: #060914;
    border-top: 1px solid rgba(255,255,255,0.06);
    padding: 4rem 0 0;
}
.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 2.5rem;
    padding-bottom: 3rem;
    border-bottom: 1px solid rgba(255,255,255,0.06);
}
.footer-brand p {
    font-size: 0.85rem;
    color: var(--color-soft);
    line-height: 1.7;
    margin-top: 1rem;
}
.footer-social {
    display: flex;
    gap: 0.8rem;
    margin-top: 1.2rem;
}
.footer-social a {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255,255,255,0.06);
    color: #94a3b8;
    border-radius: 50%;
    font-size: 0.9rem;
    transition: all .3s;
}
.footer-social a:hover {
    background: rgba(245,158,11,0.2);
    color: var(--color-accent);
    transform: translateY(-3px);
}
.footer-title {
    font-size: 1rem;
    font-weight: 600;
    color: #fff;
    margin-bottom: 1.2rem;
}
.footer-links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.7rem;
}
.footer-links a {
    font-size: 0.85rem;
    color: var(--color-soft);
    transition: all .25s;
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
}
.footer-links a:hover {
    color: var(--color-accent);
    transform: translateX(4px);
}
.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 0;
    font-size: 0.8rem;
    color: #64748b;
    flex-wrap: wrap;
    gap: 0.8rem;
}
.footer-bottom a {
    color: #64748b;
}
.footer-bottom a:hover {
    color: var(--color-accent);
}
@media (max-width:768px) {
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
}
/* ===== Search ===== */
.search-bar {
    display: flex;
    max-width: 520px;
    margin: 0 auto;
    background: rgba(255,255,255,0.06);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 999px;
    padding: 0.3rem 0.3rem 0.3rem 1.2rem;
    align-items: center;
    transition: border-color .3s;
}
.search-bar:focus-within {
    border-color: rgba(245,158,11,0.5);
    background: rgba(255,255,255,0.08);
}
.search-bar input {
    flex: 1;
    background: transparent;
    color: #fff;
    font-size: 0.9rem;
    padding: 0.5rem 0;
}
.search-bar input::placeholder {
    color: #64748b;
}
.search-bar button {
    padding: 0.5rem 1.2rem;
    background: var(--color-accent);
    color: #0b1026;
    font-weight: 600;
    font-size: 0.85rem;
    border-radius: 999px;
    cursor: pointer;
    transition: all .3s;
}
.search-bar button:hover {
    background: var(--color-accent2);
}
/* ===== Misc ===== */
.text-gradient {
    background: linear-gradient(90deg, #f59e0b, #fbbf24);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}
.section-alt {
    background: rgba(255,255,255,0.02);
    border-top: 1px solid rgba(255,255,255,0.04);
    border-bottom: 1px solid rgba(255,255,255,0.04);
}
@media (max-width:520px) {
    .container {
        padding: 0 1rem;
    }
    .hero-stats {
        grid-template-columns: repeat(2, 1fr);
        margin-top: 2.5rem;
    }
    .btn-primary, .btn-outline {
        width: 100%;
        justify-content: center;
    }
    .post-card {
        padding: 1.2rem;
    }
}

/* roulang page: article */
:root {
            --primary: #7c66f0;
            --primary-dark: #6a4fe0;
            --accent: #22d3ee;
            --bg: #0b0f1a;
            --card: #131b2e;
            --surface: #1c2740;
            --text: #e5e9f2;
            --muted: #8b95a9;
            --border: #1e2a45;
            --radius: 18px;
            --radius-sm: 10px;
            --shadow: 0 24px 70px rgba(0, 0, 0, 0.45);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }
        * { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; }
        body { font-family: 'Inter', 'PingFang SC', 'Microsoft YaHei', sans-serif; background: var(--bg); color: var(--text); line-height: 1.75; -webkit-font-smoothing: antialiased; }
        a { text-decoration: none; color: inherit; transition: var(--transition); }
        img { max-width: 100%; height: auto; display: block; }
        .container { width: 100%; max-width: 1280px; margin: 0 auto; }
        .site-header { position: sticky; top: 0; z-index: 100; background: rgba(11, 15, 26, 0.82); backdrop-filter: blur(18px); border-bottom: 1px solid rgba(30, 42, 69, 0.6); }
        .logo { display: inline-flex; align-items: center; gap: 10px; font-weight: 700; font-size: 1.25rem; letter-spacing: 0.5px; padding: 0 6px; }
        .logo-icon { width: 36px; height: 36px; border-radius: 10px; background: linear-gradient(135deg, #7c66f0, #22d3ee); display: flex; align-items: center; justify-content: center; color: #fff; font-size: 16px; box-shadow: 0 4px 18px rgba(124, 102, 240, 0.35); }
        .logo-text { background: linear-gradient(90deg, #c4b5fd, #7dd3fc); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
        .nav-link { font-size: 15px; font-weight: 500; color: var(--muted); padding: 8px 14px; border-radius: var(--radius-sm); position: relative; transition: var(--transition); }
        .nav-link:hover { color: #fff; background: rgba(124, 102, 240, 0.12); }
        .nav-link.active { color: #fff; background: rgba(124, 102, 240, 0.16); }
        .nav-link.active::after { content: ''; position: absolute; bottom: 2px; left: 50%; transform: translateX(-50%); width: 20px; height: 3px; border-radius: 3px; background: linear-gradient(90deg, #7c66f0, #22d3ee); }
        .btn-primary, .btn-outline { display: inline-flex; align-items: center; gap: 8px; font-weight: 600; font-size: 14px; border-radius: 12px; padding: 11px 26px; transition: var(--transition); border: none; cursor: pointer; }
        .btn-primary { background: linear-gradient(135deg, #7c66f0, #6a4fe0); color: #fff; box-shadow: 0 6px 24px rgba(124, 102, 240, 0.35); }
        .btn-primary:hover { transform: translateY(-2px); box-shadow: 0 10px 32px rgba(124, 102, 240, 0.48); }
        .btn-outline { border: 1px solid rgba(124, 102, 240, 0.4); color: #c4b5fd; background: transparent; }
        .btn-outline:hover { background: rgba(124, 102, 240, 0.08); border-color: #7c66f0; transform: translateY(-2px); }
        .mobile-menu { display: none; background: rgba(11, 15, 26, 0.96); backdrop-filter: blur(20px); padding: 12px 24px 20px; border-bottom: 1px solid var(--border); }
        .mobile-menu.open { display: block; }
        .mobile-link { display: block; padding: 13px 10px; font-size: 15px; font-weight: 500; color: var(--muted); border-radius: 10px; border-bottom: 1px solid rgba(30, 42, 69, 0.3); }
        .mobile-link:hover, .mobile-link.active { color: #fff; background: rgba(124, 102, 240, 0.1); }
        .site-footer { background: #0a0e16; border-top: 1px solid rgba(30, 42, 69, 0.5); padding: 64px 0 20px; margin-top: 0; }
        .footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1.2fr; gap: 44px; margin-bottom: 40px; }
        .footer-brand p { color: var(--muted); font-size: 14px; line-height: 1.8; margin-top: 14px; max-width: 300px; }
        .footer-social { display: flex; gap: 10px; margin-top: 18px; }
        .footer-social a { width: 36px; height: 36px; border-radius: 10px; display: flex; align-items: center; justify-content: center; background: var(--surface); color: var(--muted); font-size: 15px; }
        .footer-social a:hover { color: #fff; background: var(--primary); transform: translateY(-3px); }
        .footer-title { font-size: 16px; font-weight: 600; color: #e5e9f2; margin-bottom: 16px; letter-spacing: 0.5px; }
        .footer-links li { margin-bottom: 10px; list-style: none; }
        .footer-links a, .footer-links li { color: var(--muted); font-size: 14px; display: flex; align-items: center; gap: 6px; }
        .footer-links a:hover { color: #fff; padding-left: 3px; }
        .footer-bottom { border-top: 1px solid rgba(30, 42, 69, 0.4); padding-top: 20px; text-align: center; color: #5a6478; font-size: 13px; }
        .article-hero { position: relative; padding: 72px 0 56px; margin-bottom: 0; }
        .article-hero::before { content: ''; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(11, 15, 26, 0.6), rgba(11, 15, 26, 0.92)), url('/assets/images/backpic/back-1.png') center/cover no-repeat; }
        .article-hero .container { position: relative; z-index: 2; }
        .breadcrumb { font-size: 14px; color: var(--muted); margin-bottom: 20px; }
        .breadcrumb a:hover { color: #fff; }
        .breadcrumb i { font-size: 10px; margin: 0 8px; opacity: 0.5; }
        .category-badge { display: inline-flex; align-items: center; gap: 6px; background: rgba(124, 102, 240, 0.18); border: 1px solid rgba(124, 102, 240, 0.3); color: #c4b5fd; font-size: 13px; font-weight: 600; padding: 5px 14px; border-radius: 30px; margin-bottom: 16px; }
        .article-title { font-size: 2.2rem; line-height: 1.35; font-weight: 700; max-width: 880px; margin-bottom: 22px; letter-spacing: 0.2px; }
        .article-meta { display: flex; flex-wrap: wrap; gap: 22px; color: var(--muted); font-size: 14px; align-items: center; }
        .article-meta span { display: flex; align-items: center; gap: 6px; }
        .article-meta i { font-size: 13px; opacity: 0.7; }
        .article-cover { padding: 40px 0 0; }
        .article-cover img { border-radius: var(--radius); box-shadow: var(--shadow); width: 100%; max-height: 520px; object-fit: cover; }
        .article-body { padding: 56px 0 20px; max-width: 860px; margin: 0 auto; }
        .article-content { font-size: 16.5px; line-height: 2; color: #cdd5e3; }
        .article-content h2 { font-size: 1.5rem; font-weight: 700; color: #fff; margin: 44px 0 18px; padding-bottom: 10px; border-bottom: 1px solid var(--border); }
        .article-content h3 { font-size: 1.2rem; font-weight: 600; color: #e5e9f2; margin: 30px 0 14px; }
        .article-content p { margin-bottom: 18px; }
        .article-content blockquote { border-left: 4px solid var(--primary); background: rgba(124, 102, 240, 0.06); padding: 16px 22px; border-radius: 0 12px 12px 0; margin: 24px 0; color: #b3bdd0; font-style: italic; }
        .article-content ul { margin: 18px 0; padding-left: 22px; }
        .article-content li { margin-bottom: 8px; position: relative; }
        .article-content li::before { content: '✦'; position: absolute; left: -18px; color: var(--primary); font-size: 12px; }
        .article-content a { color: #a5b4fc; border-bottom: 1px solid rgba(165, 180, 252, 0.3); }
        .article-content a:hover { color: #fff; border-color: #fff; }
        .article-tags { padding: 30px 0; border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); max-width: 860px; margin: 0 auto; }
        .tag { display: inline-block; background: rgba(30, 42, 69, 0.6); border: 1px solid rgba(30, 42, 69, 0.5); color: var(--muted); font-size: 13px; padding: 5px 14px; border-radius: 30px; margin: 4px 6px 4px 0; transition: var(--transition); }
        .tag:hover { color: #fff; border-color: var(--primary); background: rgba(124, 102, 240, 0.12); }
        .share-links { display: flex; gap: 8px; align-items: center; }
        .share-btn { width: 38px; height: 38px; border-radius: 10px; background: var(--surface); display: flex; align-items: center; justify-content: center; color: var(--muted); font-size: 14px; border: 1px solid transparent; }
        .share-btn:hover { color: #fff; background: var(--primary); border-color: var(--primary); transform: translateY(-3px); }
        .author-box { max-width: 860px; margin: 40px auto 0; background: linear-gradient(135deg, rgba(124, 102, 240, 0.1), rgba(34, 211, 238, 0.05)); border: 1px solid rgba(124, 102, 240, 0.2); border-radius: var(--radius); padding: 28px 32px; display: flex; gap: 20px; align-items: center; }
        .author-avatar { width: 56px; height: 56px; border-radius: 16px; background: linear-gradient(135deg, #7c66f0, #22d3ee); display: flex; align-items: center; justify-content: center; color: #fff; font-size: 24px; flex-shrink: 0; box-shadow: 0 8px 24px rgba(124, 102, 240, 0.25); }
        .author-box h4 { font-size: 16px; font-weight: 600; color: #fff; }
        .author-box p { font-size: 14px; color: var(--muted); margin-top: 4px; }
        .related-section { padding: 70px 0 20px; }
        .related-section .section-title { font-size: 1.6rem; font-weight: 700; margin-bottom: 34px; display: flex; align-items: center; gap: 10px; }
        .related-section .section-title i { color: var(--primary); font-size: 20px; }
        .related-card { border-radius: var(--radius); overflow: hidden; background: var(--card); border: 1px solid var(--border); transition: var(--transition); }
        .related-card:hover { transform: translateY(-6px); box-shadow: var(--shadow); border-color: rgba(124, 102, 240, 0.3); }
        .related-card .rc-cover { position: relative; aspect-ratio: 16/10; overflow: hidden; }
        .related-card .rc-cover img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
        .related-card:hover .rc-cover img { transform: scale(1.05); }
        .rc-badge { position: absolute; top: 14px; left: 14px; background: rgba(11, 15, 26, 0.75); backdrop-filter: blur(8px); color: #c4b5fd; font-size: 12px; font-weight: 600; padding: 3px 12px; border-radius: 30px; }
        .rc-body { padding: 22px 22px 26px; }
        .rc-body h3 { font-size: 17px; font-weight: 600; line-height: 1.6; margin-bottom: 10px; }
        .rc-body h3 a { color: #e5e9f2; }
        .rc-body h3 a:hover { color: #a5b4fc; }
        .rc-body p { font-size: 14px; color: var(--muted); line-height: 1.75; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
        .cta-section { margin-top: 60px; border-radius: 0; position: relative; padding: 90px 0; background: url('/assets/images/backpic/back-2.png') center/cover no-repeat fixed; }
        .cta-section::before { content: ''; position: absolute; inset: 0; background: linear-gradient(120deg, rgba(11, 15, 26, 0.85), rgba(30, 20, 60, 0.7), rgba(11, 15, 26, 0.9)); }
        .cta-inner { position: relative; z-index: 2; text-align: center; max-width: 720px; margin: 0 auto; }
        .cta-inner h2 { font-size: 2rem; font-weight: 700; margin-bottom: 16px; }
        .cta-inner p { font-size: 16px; color: var(--muted); margin-bottom: 30px; }
        .not-found { text-align: center; padding: 80px 24px; background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); max-width: 860px; margin: 0 auto; }
        .not-found i { font-size: 56px; color: var(--primary); margin-bottom: 20px; display: block; }
        .not-found h2 { font-size: 28px; font-weight: 700; margin-bottom: 14px; }
        .not-found p { color: var(--muted); margin-bottom: 26px; }
        .side-menu { display: none; }
        .back-to-top { position: fixed; bottom: 30px; right: 30px; width: 46px; height: 46px; border-radius: 14px; background: linear-gradient(135deg, #7c66f0, #6a4fe0); color: #fff; font-size: 18px; display: flex; align-items: center; justify-content: center; z-index: 50; box-shadow: 0 8px 30px rgba(124, 102, 240, 0.4); opacity: 0; pointer-events: none; transition: var(--transition); }
        .back-to-top.visible { opacity: 1; pointer-events: all; }
        .back-to-top:hover { transform: translateY(-3px); }
        @media (max-width: 1024px) {
            .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
            .article-title { font-size: 1.9rem; }
        }
        @media (max-width: 768px) {
            .footer-grid { grid-template-columns: 1fr; gap: 28px; }
            .article-hero { padding: 48px 0 40px; }
            .article-title { font-size: 1.5rem; }
            .article-meta { gap: 14px; font-size: 13px; }
            .article-body { padding: 40px 0 16px; }
            .article-content { font-size: 15px; line-height: 1.9; }
            .author-box { flex-direction: column; text-align: center; padding: 24px; }
            .cta-section { padding: 60px 0; }
            .cta-inner h2 { font-size: 1.6rem; }
            .related-section .section-title { font-size: 1.3rem; }
        }
        @media (max-width: 640px) {
            .footer-bottom { font-size: 12px; padding-top: 16px; }
            .article-hero { padding: 38px 0 30px; }
            .article-title { font-size: 1.35rem; }
            .breadcrumb { font-size: 13px; }
        }

/* roulang page: category1 */
:root {
            --primary: #7c5cff;
            --primary-light: #a78bfa;
            --primary-dark: #5b3fd4;
            --accent: #f5b544;
            --bg: #0b0e1a;
            --surface: #111524;
            --card: #171d30;
            --card-hover: #1c2340;
            --text: #e9edf5;
            --text-secondary: #a0a9bf;
            --text-muted: #6e7890;
            --border: rgba(255, 255, 255, 0.07);
            --border-strong: rgba(255, 255, 255, 0.14);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 30px;
            --shadow-sm: 0 2px 10px rgba(0, 0, 0, 0.3);
            --shadow-md: 0 8px 30px rgba(0, 0, 0, 0.45);
            --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.5);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
        }

        body {
            font-family: 'Noto Sans SC', system-ui, -apple-system, sans-serif;
            background: var(--bg);
            color: var(--text);
            line-height: 1.7;
            font-size: 16px;
            overflow-x: hidden;
        }

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

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

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

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

        .container {
            width: 100%;
            max-width: 1280px;
            margin: 0 auto;
        }

        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 100;
            background: rgba(11, 14, 26, 0.85);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border);
            transition: var(--transition);
        }

        .site-header.scrolled {
            background: rgba(11, 14, 26, 0.96);
            box-shadow: var(--shadow-sm);
        }

        .logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 8px 12px;
            border-radius: 12px;
            transition: var(--transition);
        }

        .logo:hover {
            background: rgba(255, 255, 255, 0.04);
        }

        .logo-icon {
            width: 38px;
            height: 38px;
            border-radius: 12px;
            background: linear-gradient(135deg, #7c5cff, #5b3fd4);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 16px;
            box-shadow: 0 4px 15px rgba(124, 92, 255, 0.4);
            flex-shrink: 0;
        }

        .logo-text {
            font-size: 20px;
            font-weight: 800;
            letter-spacing: 0.5px;
            background: linear-gradient(135deg, #ffffff, #c7cee0);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            white-space: nowrap;
        }

        .nav-link {
            position: relative;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-secondary);
            padding: 8px 2px;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 5px;
        }

        .nav-link::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 100%;
            height: 2px;
            background: linear-gradient(90deg, var(--primary), var(--accent));
            border-radius: 2px;
            transform: scaleX(0);
            transform-origin: right;
            transition: transform 0.35s ease;
        }

        .nav-link:hover,
        .nav-link.active {
            color: #fff;
        }

        .nav-link:hover::after,
        .nav-link.active::after {
            transform: scaleX(1);
            transform-origin: left;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 24px;
            background: linear-gradient(135deg, #7c5cff, #a78bfa);
            color: #fff;
            font-weight: 600;
            font-size: 15px;
            border-radius: 12px;
            box-shadow: 0 4px 20px rgba(124, 92, 255, 0.35);
            transition: var(--transition);
            white-space: nowrap;
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 30px rgba(124, 92, 255, 0.5);
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 4px 15px rgba(124, 92, 255, 0.3);
        }

        .btn-primary:focus-visible,
        .btn-ghost:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 3px;
        }

        .btn-ghost {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 24px;
            border: 1px solid var(--border-strong);
            color: var(--text);
            font-weight: 500;
            font-size: 15px;
            border-radius: 12px;
            background: rgba(255, 255, 255, 0.04);
            transition: var(--transition);
            white-space: nowrap;
        }

        .btn-ghost:hover {
            border-color: var(--primary-light);
            color: var(--primary-light);
            background: rgba(124, 92, 255, 0.08);
            transform: translateY(-2px);
        }

        .mobile-menu {
            display: none;
            padding: 16px 20px 24px;
            background: var(--surface);
            border-top: 1px solid var(--border);
        }

        .mobile-menu.open {
            display: block;
            animation: fadeInDown 0.3s ease;
        }

        @keyframes fadeInDown {
            from {
                opacity: 0;
                transform: translateY(-8px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .mobile-link {
            display: block;
            padding: 12px 8px;
            font-size: 16px;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: 8px;
            transition: var(--transition);
        }

        .mobile-link:hover,
        .mobile-link.active {
            color: #fff;
            background: rgba(124, 92, 255, 0.1);
        }

        .category-hero {
            position: relative;
            padding: 170px 0 110px;
            background: url('/assets/images/backpic/back-2.png') center / cover no-repeat;
            overflow: hidden;
        }

        .category-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(to right, rgba(11, 14, 26, 0.96) 20%, rgba(11, 14, 26, 0.75) 55%, rgba(11, 14, 26, 0.45) 100%);
        }

        .category-hero::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 90px;
            background: linear-gradient(to top, var(--bg), transparent);
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 16px;
            border-radius: 100px;
            background: rgba(124, 92, 255, 0.15);
            border: 1px solid rgba(124, 92, 255, 0.3);
            color: var(--primary-light);
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 1px;
        }

        .hero-title {
            font-size: 52px;
            font-weight: 900;
            line-height: 1.15;
            letter-spacing: -1px;
            background: linear-gradient(135deg, #ffffff, #d8dff0);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .hero-subtitle {
            font-size: 20px;
            font-weight: 400;
            color: var(--text-secondary);
            max-width: 580px;
            line-height: 1.8;
        }

        .star-float {
            position: absolute;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(255, 255, 255, 0.9), transparent);
            animation: twinkle 3s ease-in-out infinite;
            pointer-events: none;
        }

        @keyframes twinkle {
            0%,
            100% {
                opacity: 0.4;
                transform: scale(0.8);
            }
            50% {
                opacity: 1;
                transform: scale(1.2);
            }
        }

        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            font-weight: 700;
            color: var(--primary-light);
            letter-spacing: 2px;
            text-transform: uppercase;
        }

        .section-title {
            font-size: 36px;
            font-weight: 800;
            line-height: 1.3;
            letter-spacing: -0.5px;
        }

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

        .subscribe-bar {
            position: relative;
            z-index: 2;
            margin-top: -40px;
            background: linear-gradient(145deg, var(--card), #131a30);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 30px 36px;
            box-shadow: var(--shadow-md);
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
        }

        .subscribe-input {
            flex: 1;
            min-width: 240px;
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid var(--border);
            border-radius: 12px;
            padding: 12px 16px;
            color: var(--text);
            font-size: 15px;
            transition: var(--transition);
        }

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

        .subscribe-input:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(124, 92, 255, 0.15);
        }

        .news-card {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            background: var(--card);
            border: 1px solid var(--border);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
            height: 100%;
        }

        .news-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: rgba(124, 92, 255, 0.25);
        }

        .news-card-image {
            position: relative;
            aspect-ratio: 16 / 9;
            overflow: hidden;
        }

        .news-card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        .news-card-image::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(11, 14, 26, 0.4), transparent);
        }

        .news-tag {
            position: absolute;
            top: 14px;
            left: 14px;
            z-index: 2;
            padding: 5px 12px;
            border-radius: 100px;
            font-size: 12px;
            font-weight: 600;
            background: rgba(124, 92, 255, 0.85);
            color: #fff;
            backdrop-filter: blur(6px);
            letter-spacing: 0.5px;
        }

        .news-tag.hot {
            background: rgba(245, 181, 68, 0.9);
        }

        .news-tag.new {
            background: rgba(52, 211, 153, 0.85);
        }

        .play-btn {
            position: absolute;
            inset: 0;
            margin: auto;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.15);
            backdrop-filter: blur(10px);
            border: 1px solid rgba(255, 255, 255, 0.3);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 18px;
            opacity: 0;
            transform: scale(0.8);
            transition: var(--transition);
            z-index: 2;
        }

        .news-card:hover .play-btn {
            opacity: 1;
            transform: scale(1);
        }

        .badge-spec {
            position: absolute;
            bottom: 14px;
            right: 14px;
            z-index: 2;
            padding: 4px 10px;
            border-radius: 6px;
            font-size: 11px;
            letter-spacing: 0.5px;
            background: rgba(0, 0, 0, 0.55);
            color: var(--text-secondary);
            backdrop-filter: blur(6px);
            border: 1px solid rgba(255, 255, 255, 0.08);
        }

        .news-card-body {
            padding: 22px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .news-card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            color: var(--text-muted);
            font-size: 13px;
            margin-top: auto;
            padding-top: 14px;
        }

        .news-card-meta span {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .calendar-section {
            background: var(--surface);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }

        .timeline {
            position: relative;
            padding-left: 32px;
        }

        .timeline::before {
            content: '';
            position: absolute;
            left: 8px;
            top: 4px;
            bottom: 4px;
            width: 2px;
            background: linear-gradient(to bottom, var(--primary), rgba(124, 92, 255, 0.1));
            border-radius: 2px;
        }

        .timeline-item {
            position: relative;
            margin-bottom: 32px;
        }

        .timeline-item:last-child {
            margin-bottom: 0;
        }

        .timeline-item::before {
            content: '';
            position: absolute;
            left: -30px;
            top: 6px;
            width: 18px;
            height: 18px;
            border-radius: 50%;
            background: var(--bg);
            border: 3px solid var(--primary);
            box-shadow: 0 0 0 4px rgba(124, 92, 255, 0.15);
        }

        .timeline-item.highlight::before {
            border-color: var(--accent);
            box-shadow: 0 0 0 4px rgba(245, 181, 68, 0.15);
        }

        .ranking-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .ranking-item {
            display: flex;
            align-items: center;
            gap: 18px;
            padding: 18px 20px;
            border-radius: var(--radius-md);
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid var(--border);
            transition: var(--transition);
        }

        .ranking-item:hover {
            background: rgba(124, 92, 255, 0.06);
            border-color: rgba(124, 92, 255, 0.2);
            transform: translateX(6px);
        }

        .ranking-num {
            font-size: 28px;
            font-weight: 900;
            background: linear-gradient(135deg, var(--primary-light), rgba(124, 92, 255, 0.3));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            min-width: 48px;
            text-align: center;
        }

        .topic-card {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            height: 220px;
            border: 1px solid var(--border);
            transition: var(--transition);
        }

        .topic-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: rgba(124, 92, 255, 0.3);
        }

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

        .topic-card:hover img {
            transform: scale(1.08);
        }

        .topic-card .topic-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(11, 14, 26, 0.9), rgba(11, 14, 26, 0.15));
            display: flex;
            flex-direction: column;
            justify-content: flex-end;
            padding: 24px;
        }

        .topic-card .topic-count {
            font-size: 13px;
            color: var(--text-secondary);
            margin-bottom: 4px;
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .faq-item {
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            background: rgba(255, 255, 255, 0.02);
            transition: var(--transition);
            margin-bottom: 12px;
            overflow: hidden;
        }

        .faq-item:hover {
            border-color: rgba(124, 92, 255, 0.2);
        }

        .faq-item.active {
            border-color: rgba(124, 92, 255, 0.3);
            background: rgba(124, 92, 255, 0.04);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 20px 24px;
            font-size: 16px;
            font-weight: 600;
            color: var(--text);
            cursor: pointer;
            transition: var(--transition);
        }

        .faq-question .faq-icon {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(124, 92, 255, 0.1);
            color: var(--primary-light);
            font-size: 14px;
            transition: transform 0.3s ease;
            flex-shrink: 0;
        }

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

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease;
            padding: 0 24px;
        }

        .faq-answer p {
            padding-bottom: 20px;
            color: var(--text-secondary);
            font-size: 15px;
            line-height: 1.8;
        }

        .cta-section {
            position: relative;
            padding: 100px 0;
            background: url('/assets/images/backpic/back-3.png') center / cover no-repeat;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(11, 14, 26, 0.92), rgba(124, 92, 255, 0.25));
        }

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

        .site-footer {
            background: var(--surface);
            border-top: 1px solid var(--border);
            padding: 64px 0 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 48px;
        }

        .footer-brand p {
            color: var(--text-secondary);
            font-size: 15px;
            margin: 18px 0 20px;
            max-width: 320px;
            line-height: 1.8;
        }

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

        .footer-social a {
            width: 38px;
            height: 38px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 10px;
            background: rgba(255, 255, 255, 0.06);
            color: var(--text-secondary);
            transition: var(--transition);
        }

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

        .footer-title {
            font-size: 16px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
        }

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

        .footer-links a,
        .footer-links li {
            color: var(--text-secondary);
            font-size: 14px;
            transition: var(--transition);
        }

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

        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            padding: 24px 0;
            border-top: 1px solid var(--border);
            color: var(--text-muted);
            font-size: 14px;
            gap: 12px;
        }

        .footer-bottom a {
            color: var(--text-muted);
            transition: var(--transition);
        }

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

        @media (max-width: 1024px) {
            .hero-title {
                font-size: 40px;
            }

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

        @media (max-width: 768px) {
            .category-hero {
                padding: 140px 0 90px;
            }

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

            .hero-subtitle {
                font-size: 17px;
            }

            .section-title {
                font-size: 28px;
            }

            .subscribe-bar {
                padding: 24px 20px;
                margin-top: -30px;
            }

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

        @media (max-width: 520px) {
            .hero-title {
                font-size: 28px;
            }

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

            .btn-primary,
            .btn-ghost {
                padding: 9px 16px;
                font-size: 14px;
            }

            .section-title {
                font-size: 24px;
            }

            .news-card-body {
                padding: 16px 18px;
            }

            .ranking-item {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
                padding: 14px 16px;
            }

            .ranking-num {
                font-size: 22px;
                min-width: auto;
                text-align: left;
            }

            .topic-card {
                height: 180px;
            }
        }

/* roulang page: category2 */
:root {
            --bg-ink: #0b1020;
            --bg-surface: #121a2e;
            --bg-card: #1b2640;
            --primary: #6d5ef9;
            --primary-soft: #8b7dff;
            --accent: #22d3ee;
            --text-main: #e8ecf4;
            --text-muted: #9aa8c0;
            --border: rgba(255, 255, 255, 0.08);
            --radius: 16px;
            --radius-lg: 24px;
            --shadow: 0 20px 50px rgba(0, 0, 0, 0.35);
            --transition: all 0.3s ease;
        }
        * {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: 'PingFang SC', 'Microsoft YaHei', system-ui, -apple-system, sans-serif;
            background: var(--bg-ink);
            color: var(--text-main);
            line-height: 1.7;
            margin: 0;
        }
        a {
            text-decoration: none;
            color: inherit;
        }
        img {
            max-width: 100%;
            display: block;
        }
        button {
            font-family: inherit;
            cursor: pointer;
        }

        /* header */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 60;
            background: rgba(11, 16, 32, 0.78);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border);
            transition: var(--transition);
        }
        .site-header.scrolled {
            background: rgba(11, 16, 32, 0.92);
            box-shadow: 0 8px 28px rgba(0, 0, 0, 0.3);
        }
        .logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 1.15rem;
            color: #fff;
            letter-spacing: 0.02em;
            white-space: nowrap;
            transition: var(--transition);
        }
        .logo-icon {
            width: 36px;
            height: 36px;
            border-radius: 12px;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1rem;
            box-shadow: 0 8px 20px rgba(109, 94, 249, 0.35);
            flex-shrink: 0;
        }
        .logo:hover .logo-icon {
            transform: rotate(-8deg) scale(1.05);
        }
        .logo-text {
            font-size: 1.05rem;
        }
        .nav-link {
            font-size: 0.95rem;
            color: var(--text-muted);
            font-weight: 500;
            padding: 10px 2px;
            position: relative;
            transition: var(--transition);
            white-space: nowrap;
        }
        .nav-link:hover {
            color: #fff;
        }
        .nav-link.active {
            color: #fff;
        }
        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 2px;
            background: linear-gradient(90deg, var(--primary), var(--accent));
            border-radius: 2px;
        }
        .mobile-menu {
            display: none;
            padding: 12px 20px 20px;
            background: var(--bg-surface);
            border-top: 1px solid var(--border);
        }
        .mobile-menu.open {
            display: block;
        }
        .mobile-link {
            display: block;
            padding: 14px 8px;
            font-weight: 500;
            color: var(--text-muted);
            border-bottom: 1px solid var(--border);
            transition: var(--transition);
        }
        .mobile-link:hover,
        .mobile-link.active {
            color: #fff;
        }

        /* buttons */
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: linear-gradient(135deg, var(--primary), #5b8def);
            color: #fff;
            font-weight: 600;
            font-size: 0.95rem;
            padding: 13px 30px;
            border-radius: 999px;
            border: none;
            box-shadow: 0 10px 30px rgba(109, 94, 249, 0.35);
            transition: var(--transition);
        }
        .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 16px 42px rgba(109, 94, 249, 0.48);
        }
        .btn-primary:active {
            transform: translateY(-1px);
        }
        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            border: 1px solid var(--border);
            color: #fff;
            background: rgba(255, 255, 255, 0.04);
            padding: 13px 30px;
            border-radius: 999px;
            font-weight: 500;
            transition: var(--transition);
        }
        .btn-outline:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: rgba(255, 255, 255, 0.2);
            transform: translateY(-3px);
        }
        .btn-outline:active {
            transform: translateY(0);
        }

        /* hero banner */
        .page-banner {
            position: relative;
            padding: 150px 0 110px;
            background-size: cover;
            background-position: center;
            isolation: isolate;
        }
        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(11, 16, 32, 0.72) 0%, rgba(11, 16, 32, 0.88) 100%);
            z-index: -1;
        }
        .eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 0.85rem;
            font-weight: 600;
            letter-spacing: 0.12em;
            text-transform: uppercase;
            color: var(--accent);
            background: rgba(34, 211, 238, 0.08);
            border: 1px solid rgba(34, 211, 238, 0.2);
            padding: 6px 18px;
            border-radius: 999px;
            margin-bottom: 24px;
        }
        .gradient-text {
            background: linear-gradient(120deg, var(--primary-soft), var(--accent));
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
            color: transparent;
        }
        .banner-desc {
            max-width: 680px;
            margin: 20px auto 0;
            font-size: 1.1rem;
            color: var(--text-muted);
        }
        .tag-row {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 10px;
            margin-top: 28px;
        }
        .badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.85rem;
            font-weight: 500;
            padding: 6px 16px;
            border-radius: 999px;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid var(--border);
            color: var(--text-main);
            transition: var(--transition);
        }
        .badge:hover {
            border-color: rgba(109, 94, 249, 0.4);
            background: rgba(109, 94, 249, 0.1);
        }
        .badge i {
            color: var(--accent);
        }

        /* sections */
        .section {
            padding: 100px 0;
            position: relative;
        }
        .section-alt {
            background: linear-gradient(180deg, var(--bg-surface), var(--bg-ink));
        }
        .section-head {
            text-align: center;
            max-width: 660px;
            margin: 0 auto 56px;
        }
        .section-kicker {
            font-size: 0.85rem;
            font-weight: 700;
            letter-spacing: 0.14em;
            text-transform: uppercase;
            color: var(--accent);
            margin-bottom: 12px;
        }
        .section-title {
            font-size: 2.2rem;
            font-weight: 800;
            line-height: 1.3;
            color: #fff;
            letter-spacing: -0.02em;
        }
        .section-desc {
            margin-top: 16px;
            font-size: 1rem;
            color: var(--text-muted);
        }

        /* cards */
        .card {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            transition: var(--transition);
            height: 100%;
        }
        .card:hover {
            transform: translateY(-6px);
            border-color: rgba(109, 94, 249, 0.35);
            box-shadow: var(--shadow);
        }
        .card-cover {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16/10;
        }
        .card-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .card:hover .card-cover img {
            transform: scale(1.06);
        }
        .card-body {
            padding: 24px;
        }
        .category-chip {
            display: inline-block;
            font-size: 0.75rem;
            font-weight: 600;
            letter-spacing: 0.05em;
            color: var(--accent);
            background: rgba(34, 211, 238, 0.08);
            border: 1px solid rgba(34, 211, 238, 0.15);
            padding: 4px 12px;
            border-radius: 999px;
            margin-bottom: 12px;
        }
        .card-title {
            font-size: 1.15rem;
            font-weight: 700;
            color: #fff;
            line-height: 1.5;
            transition: var(--transition);
        }
        .card:hover .card-title {
            color: var(--primary-soft);
        }
        .card-text {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-top: 10px;
            line-height: 1.6;
        }
        .card-meta {
            display: flex;
            align-items: center;
            gap: 14px;
            margin-top: 16px;
            font-size: 0.82rem;
            color: var(--text-muted);
        }

        /* step cards */
        .step-card {
            position: relative;
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 36px 30px;
            height: 100%;
            transition: var(--transition);
            overflow: hidden;
        }
        .step-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--primary), var(--accent));
            opacity: 0;
            transition: var(--transition);
        }
        .step-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow);
            border-color: rgba(109, 94, 249, 0.35);
        }
        .step-card:hover::before {
            opacity: 1;
        }
        .step-num {
            font-family: 'Inter', ui-monospace, monospace;
            font-size: 2.8rem;
            font-weight: 800;
            line-height: 1;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
            color: transparent;
        }
        .step-title {
            font-size: 1.2rem;
            font-weight: 700;
            color: #fff;
            margin-top: 18px;
        }
        .step-desc {
            color: var(--text-muted);
            font-size: 0.92rem;
            margin-top: 10px;
        }

        /* horizontal scroll */
        .h-scroll {
            display: grid;
            grid-auto-flow: column;
            grid-auto-columns: 340px;
            gap: 24px;
            overflow-x: auto;
            padding: 8px 2px 20px;
            scroll-snap-type: x mandatory;
        }
        .h-scroll .card {
            scroll-snap-align: start;
        }
        .h-scroll::-webkit-scrollbar {
            height: 6px;
        }
        .h-scroll::-webkit-scrollbar-track {
            background: transparent;
        }
        .h-scroll::-webkit-scrollbar-thumb {
            background: rgba(255, 255, 255, 0.12);
            border-radius: 999px;
        }

        /* gear cards */
        .gear-card {
            position: relative;
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 28px;
            transition: var(--transition);
            height: 100%;
        }
        .gear-card:hover {
            transform: translateY(-6px);
            border-color: rgba(109, 94, 249, 0.4);
            box-shadow: var(--shadow);
        }
        .gear-icon {
            width: 48px;
            height: 48px;
            border-radius: 14px;
            background: linear-gradient(135deg, rgba(109, 94, 249, 0.15), rgba(34, 211, 238, 0.12));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            color: var(--accent);
            border: 1px solid rgba(255, 255, 255, 0.06);
            margin-bottom: 18px;
        }
        .gear-card h3 {
            font-size: 1.1rem;
            font-weight: 700;
            color: #fff;
        }
        .gear-card p {
            font-size: 0.88rem;
            color: var(--text-muted);
            margin-top: 8px;
        }
        .gear-specs {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-top: 16px;
        }
        .spec {
            font-size: 0.72rem;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 999px;
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid var(--border);
            color: var(--text-muted);
            letter-spacing: 0.03em;
        }

        /* top list */
        .top-item {
            display: flex;
            align-items: center;
            gap: 20px;
            padding: 22px 24px;
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: 16px;
            transition: var(--transition);
        }
        .top-item:hover {
            border-color: rgba(109, 94, 249, 0.4);
            box-shadow: var(--shadow);
            transform: translateX(6px);
        }
        .top-number {
            font-size: 2.2rem;
            font-weight: 900;
            font-family: 'Inter', ui-monospace, monospace;
            color: transparent;
            -webkit-text-stroke: 1.5px rgba(255, 255, 255, 0.25);
            min-width: 56px;
            text-align: center;
            transition: var(--transition);
        }
        .top-item:hover .top-number {
            -webkit-text-stroke-color: var(--primary);
        }
        .top-title {
            font-size: 1rem;
            font-weight: 600;
            color: #fff;
        }
        .top-desc {
            font-size: 0.84rem;
            color: var(--text-muted);
            margin-top: 4px;
        }
        .top-medal {
            font-size: 1.2rem;
        }

        /* faq */
        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: 16px;
            overflow: hidden;
            transition: var(--transition);
            margin-bottom: 14px;
        }
        .faq-item.active {
            border-color: rgba(109, 94, 249, 0.45);
        }
        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 22px 24px;
            background: transparent;
            border: none;
            color: #fff;
            font-size: 1rem;
            font-weight: 600;
            text-align: left;
            transition: var(--transition);
        }
        .faq-question:hover {
            color: var(--primary-soft);
        }
        .faq-icon {
            font-size: 0.9rem;
            color: var(--accent);
            flex-shrink: 0;
            transition: transform 0.3s ease;
        }
        .faq-item.active .faq-icon {
            transform: rotate(45deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease;
        }
        .faq-answer-inner {
            padding: 0 24px 24px;
            color: var(--text-muted);
            font-size: 0.94rem;
            line-height: 1.7;
        }

        /* cta */
        .cta-section {
            position: relative;
            padding: 96px 0;
            background: linear-gradient(135deg, rgba(109, 94, 249, 0.12), rgba(34, 211, 238, 0.06)), var(--bg-ink);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }
        .cta-box {
            background: linear-gradient(135deg, rgba(27, 38, 64, 0.92), rgba(18, 26, 46, 0.96));
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: 28px;
            padding: 56px 48px;
            text-align: center;
            max-width: 800px;
            margin: 0 auto;
            box-shadow: 0 30px 70px rgba(0, 0, 0, 0.35);
            position: relative;
            overflow: hidden;
        }
        .cta-box::before {
            content: '';
            position: absolute;
            top: -60%;
            right: -30%;
            width: 260px;
            height: 260px;
            background: radial-gradient(circle, rgba(109, 94, 249, 0.2), transparent 70%);
            pointer-events: none;
        }
        .cta-title {
            font-size: 1.9rem;
            font-weight: 800;
            color: #fff;
            line-height: 1.35;
        }
        .cta-desc {
            margin: 16px auto 28px;
            max-width: 520px;
            color: var(--text-muted);
            font-size: 1rem;
        }

        /* footer */
        .site-footer {
            background: #090d18;
            border-top: 1px solid var(--border);
            padding: 64px 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
            gap: 40px;
            padding-bottom: 48px;
        }
        .footer-brand p {
            color: var(--text-muted);
            font-size: 0.92rem;
            margin-top: 16px;
            line-height: 1.7;
            max-width: 320px;
        }
        .footer-social {
            display: flex;
            gap: 10px;
            margin-top: 20px;
        }
        .footer-social a {
            width: 38px;
            height: 38px;
            border-radius: 12px;
            border: 1px solid var(--border);
            background: rgba(255, 255, 255, 0.03);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: var(--text-muted);
            font-size: 0.9rem;
            transition: var(--transition);
        }
        .footer-social a:hover {
            background: linear-gradient(135deg, var(--primary), var(--accent));
            color: #fff;
            border-color: transparent;
            transform: translateY(-3px);
        }
        .footer-title {
            font-size: 1rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 18px;
        }
        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-links li {
            margin-bottom: 12px;
            font-size: 0.92rem;
            color: var(--text-muted);
        }
        .footer-links a {
            color: var(--text-muted);
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .footer-links a:hover {
            color: #fff;
            transform: translateX(4px);
        }
        .footer-bottom {
            border-top: 1px solid var(--border);
            padding: 24px 0;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            color: #6b7a99;
            font-size: 0.88rem;
        }

        /* responsive */
        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 768px) {
            .section {
                padding: 68px 0;
            }
            .page-banner {
                padding: 110px 0 72px;
            }
            .section-title {
                font-size: 1.7rem;
            }
            .cta-box {
                padding: 40px 24px;
            }
            .cta-title {
                font-size: 1.4rem;
            }
            .h-scroll {
                grid-auto-columns: 280px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .footer-bottom {
                justify-content: center;
                text-align: center;
            }
            .step-card {
                padding: 28px 22px;
            }
        }
        @media (max-width: 520px) {
            .page-banner {
                padding: 90px 0 56px;
            }
            .section-title {
                font-size: 1.45rem;
            }
            .h-scroll {
                grid-auto-columns: 84%;
            }
            .badge {
                font-size: 0.78rem;
                padding: 5px 12px;
            }
            .top-item {
                padding: 16px;
                gap: 12px;
            }
            .top-number {
                font-size: 1.6rem;
                min-width: 40px;
            }
            .cta-box {
                padding: 32px 18px;
                border-radius: 20px;
            }
            .btn-primary,
            .btn-outline {
                padding: 11px 22px;
                font-size: 0.88rem;
            }
        }