/* roulang page: index */
/* =========================================================
   Design Tokens
   ========================================================= */
:root {
    --bg-primary: #0B1220;
    --bg-secondary: #0F1929;
    --bg-tertiary: #101C30;
    --bg-glass: rgba(255,255,255,0.05);
    --bg-glass-strong: rgba(255,255,255,0.08);
    --border-glass: rgba(255,255,255,0.10);
    --border-glass-hover: rgba(0,229,160,0.35);

    --color-primary: #3B82F6;
    --color-accent: #00E5A0;
    --color-cta: #FF9F29;
    --color-cta-deep: #FF6B3D;
    --color-warm: #F43F5E;

    --text-primary: #E8EEF7;
    --text-secondary: #94A3B8;
    --text-muted: #64748B;

    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;

    --shadow-card: 0 8px 32px rgba(0,0,0,0.30);
    --shadow-hover: 0 12px 40px rgba(0,0,0,0.42);
    --shadow-cta: 0 4px 24px rgba(255,159,41,0.35);
    --shadow-cta-hover: 0 6px 32px rgba(255,159,41,0.55);
    --shadow-acc: 0 0 16px rgba(0,229,160,0.50);

    --font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
    --font-num: Inter, "DIN Alternate", "Roboto", sans-serif;

    --space-section: 100px;
    --space-section-md: 70px;
    --space-section-sm: 50px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.8;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

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

a {
    color: inherit;
    text-decoration: none;
    transition: color 0.3s ease;
}

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

ul, ol {
    list-style: none;
}

h1, h2, h3, h4, h5, h6 {
    margin: 0;
    font-weight: 600;
    line-height: 1.3;
    color: var(--text-primary);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.section {
    padding: var(--space-section) 0;
}

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

.section-head {
    text-align: center;
    max-width: 640px;
    margin: 0 auto 56px;
}

.section-head .section-tag {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(0,229,160,0.10);
    color: var(--color-accent);
    border: 1px solid rgba(0,229,160,0.25);
    padding: 6px 18px;
    border-radius: 999px;
    font-size: 13px;
    letter-spacing: 1px;
    margin-bottom: 18px;
}

.section-head h2 {
    font-size: 32px;
    font-weight: 700;
    letter-spacing: -0.5px;
    margin-bottom: 12px;
}

.section-head p {
    color: var(--text-secondary);
    font-size: 15px;
}

/* =========================================================
   Buttons
   ========================================================= */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 28px;
    border-radius: 10px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    white-space: nowrap;
}

.btn-primary {
    background: linear-gradient(135deg, #FF9F29, #FF6B3D);
    color: #fff;
    box-shadow: var(--shadow-cta);
}

.btn-primary:hover {
    box-shadow: var(--shadow-cta-hover);
    transform: translateY(-2px);
    filter: brightness(1.05);
    color: #fff;
}

.btn-primary:active {
    transform: translateY(1px);
    box-shadow: 0 2px 12px rgba(255,159,41,0.30);
}

.btn-secondary {
    background: rgba(255,255,255,0.06);
    border: 1px solid rgba(255,255,255,0.15);
    color: var(--text-primary);
    backdrop-filter: blur(10px);
}

.btn-secondary:hover {
    background: rgba(255,255,255,0.12);
    border-color: rgba(59,130,246,0.50);
    color: var(--text-primary);
}

.btn-sm {
    padding: 8px 20px;
    font-size: 13px;
    border-radius: 8px;
}

/* =========================================================
   Badges & Tags
   ========================================================= */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    background: rgba(0,229,160,0.12);
    color: var(--color-accent);
    border: 1px solid rgba(0,229,160,0.30);
    padding: 4px 14px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 500;
    letter-spacing: 0.5px;
    line-height: 1.5;
}

.badge-warm {
    background: rgba(255,159,41,0.15);
    color: var(--color-cta);
    border-color: rgba(255,159,41,0.40);
}

.badge-sm {
    padding: 2px 10px;
    font-size: 11px;
}

.badge-float {
    position: absolute;
    top: 14px;
    left: 14px;
    z-index: 2;
}

/* =========================================================
   Glass Card
   ========================================================= */
.glass-card {
    background: var(--bg-glass);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-lg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    position: relative;
    overflow: hidden;
    transition: border-color 0.3s ease, transform 0.3s ease, box-shadow 0.3s ease;
}

.glass-card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.15), transparent);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.glass-card:hover {
    border-color: var(--border-glass-hover);
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
}

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

/* =========================================================
   Header / Nav
   ========================================================= */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background: rgba(11,18,32,0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255,255,255,0.06);
    transition: background 0.3s ease, box-shadow 0.3s ease;
}

.site-header.scrolled {
    background: rgba(11,18,32,0.95);
    box-shadow: 0 8px 32px rgba(0,0,0,0.35);
}

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

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

.logo-icon {
    width: 40px;
    height: 40px;
    border-radius: 12px;
    background: linear-gradient(135deg, var(--color-cta), var(--color-cta-deep));
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 18px;
    box-shadow: 0 4px 16px rgba(255,159,41,0.35);
}

.logo-text {
    font-size: 20px;
    font-weight: 700;
    letter-spacing: -0.5px;
    color: var(--text-primary);
    white-space: nowrap;
}

.logo-text span {
    color: var(--color-accent);
}

.nav-center {
    display: flex;
    align-items: center;
    gap: 4px;
}

.nav-link {
    display: inline-flex;
    align-items: center;
    padding: 10px 16px;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-secondary);
    position: relative;
    transition: color 0.3s ease, background 0.3s ease;
}

.nav-link:hover {
    color: var(--text-primary);
    background: rgba(255,255,255,0.06);
}

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

.nav-link.active::after {
    content: "";
    position: absolute;
    bottom: 4px;
    left: 50%;
    transform: translateX(-50%);
    width: 18px;
    height: 2px;
    border-radius: 2px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
}

.nav-right {
    display: flex;
    align-items: center;
    gap: 12px;
}

.command-bar {
    display: flex;
    align-items: center;
    gap: 10px;
    background: rgba(255,255,255,0.05);
    border: 1px solid rgba(255,255,255,0.10);
    border-radius: 10px;
    padding: 8px 14px;
    width: 240px;
    cursor: pointer;
    transition: border-color 0.3s ease, background 0.3s ease;
}

.command-bar:hover {
    border-color: rgba(59,130,246,0.50);
    background: rgba(255,255,255,0.08);
}

.command-bar i {
    color: var(--text-muted);
    font-size: 13px;
}

.command-bar .cmd-placeholder {
    flex: 1;
    font-size: 13px;
    color: var(--text-muted);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.command-bar kbd {
    background: rgba(255,255,255,0.10);
    border: 1px solid rgba(255,255,255,0.15);
    border-radius: 4px;
    padding: 1px 6px;
    font-size: 11px;
    color: var(--text-secondary);
    font-family: var(--font-num);
}

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

.nav-icon-btn {
    width: 36px;
    height: 36px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    background: rgba(255,255,255,0.04);
    border: 1px solid rgba(255,255,255,0.08);
    transition: all 0.3s ease;
    cursor: pointer;
}

.nav-icon-btn:hover {
    color: var(--color-accent);
    background: rgba(0,229,160,0.10);
    border-color: rgba(0,229,160,0.30);
}

.btn-cta-header {
    padding: 8px 20px;
    font-size: 13px;
    border-radius: 8px;
    background: linear-gradient(135deg, #FF9F29, #FF6B3D);
    color: #fff;
    box-shadow: 0 2px 12px rgba(255,159,41,0.30);
    transition: all 0.3s ease;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-weight: 600;
}

.btn-cta-header:hover {
    box-shadow: 0 4px 20px rgba(255,159,41,0.50);
    transform: translateY(-1px);
    color: #fff;
}

.mobile-menu-btn {
    display: none;
    width: 38px;
    height: 38px;
    border-radius: 10px;
    background: rgba(255,255,255,0.05);
    border: 1px solid rgba(255,255,255,0.10);
    color: var(--text-primary);
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: 16px;
}

.mobile-nav {
    display: none;
    background: rgba(11,18,32,0.98);
    border-top: 1px solid rgba(255,255,255,0.06);
    padding: 16px 20px;
}

.mobile-nav a {
    display: block;
    padding: 12px 16px;
    border-radius: 8px;
    color: var(--text-secondary);
    font-size: 15px;
    font-weight: 500;
    margin-bottom: 4px;
}

.mobile-nav a:hover, .mobile-nav a.active {
    background: rgba(255,255,255,0.06);
    color: var(--text-primary);
}

/* =========================================================
   Command Palette Modal
   ========================================================= */
.command-modal {
    position: fixed;
    inset: 0;
    z-index: 200;
    background: rgba(8,14,24,0.80);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    display: flex;
    align-items: flex-start;
    justify-content: center;
    padding: 15vh 20px 20px;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

.command-modal.open {
    opacity: 1;
    visibility: visible;
}

.command-panel {
    width: 100%;
    max-width: 560px;
    background: rgba(15,25,41,0.92);
    border: 1px solid rgba(255,255,255,0.10);
    border-radius: 20px;
    box-shadow: 0 24px 64px rgba(0,0,0,0.50);
    overflow: hidden;
    transform: translateY(-12px);
    transition: transform 0.3s ease;
}

.command-modal.open .command-panel {
    transform: translateY(0);
}

.command-input-wrap {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px 20px;
    border-bottom: 1px solid rgba(255,255,255,0.06);
}

.command-input-wrap i {
    color: var(--text-muted);
}

.command-input-wrap input {
    flex: 1;
    background: none;
    border: none;
    outline: none;
    color: var(--text-primary);
    font-size: 15px;
}

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

.command-panel-body {
    padding: 16px 8px 20px;
}

.command-group {
    padding: 8px 12px;
}

.command-label {
    font-size: 12px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
    padding: 6px 8px 8px;
    font-weight: 600;
}

.command-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 12px;
    border-radius: 10px;
    color: var(--text-secondary);
    font-size: 14px;
    transition: background 0.2s ease, color 0.2s ease;
}

.command-item:hover {
    background: rgba(0,229,160,0.12);
    color: var(--text-primary);
}

.command-item i:first-child {
    width: 28px;
    height: 28px;
    border-radius: 8px;
    background: rgba(255,255,255,0.06);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 13px;
    color: var(--color-accent);
}

.command-item .cmd-arrow {
    margin-left: auto;
    font-size: 12px;
    color: var(--text-muted);
    opacity: 0;
    transition: opacity 0.2s ease, transform 0.2s ease;
}

.command-item:hover .cmd-arrow {
    opacity: 1;
    transform: translateX(3px);
}

/* =========================================================
   Hero
   ========================================================= */
.hero {
    position: relative;
    min-height: 92vh;
    display: flex;
    align-items: center;
    background: linear-gradient(180deg, rgba(11,18,32,0.55), rgba(11,18,32,0.95)), url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
    padding: 120px 0 80px;
}

.hero::after {
    content: "";
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 120px;
    background: linear-gradient(180deg, transparent, rgba(11,18,32,0.90));
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 900px;
    margin: 0 auto;
    text-align: center;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(255,255,255,0.06);
    border: 1px solid rgba(255,255,255,0.12);
    padding: 8px 20px;
    border-radius: 999px;
    font-size: 13px;
    color: var(--text-secondary);
    margin-bottom: 28px;
    backdrop-filter: blur(8px);
}

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

.hero h1 {
    font-size: 46px;
    font-weight: 700;
    letter-spacing: -1px;
    line-height: 1.25;
    margin-bottom: 20px;
}

.hero h1 .gradient-text {
    background: linear-gradient(135deg, #00E5A0, #3B82F6);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 17px;
    color: var(--text-secondary);
    max-width: 560px;
    margin: 0 auto 36px;
    line-height: 1.8;
}

.hero-ctas {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
}

.hero-stats-bar {
    position: relative;
    z-index: 3;
    margin-top: 64px;
    display: flex;
    justify-content: center;
    gap: 40px;
    flex-wrap: wrap;
}

.hero-stat {
    text-align: center;
    padding: 20px 28px;
    background: rgba(255,255,255,0.04);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: 16px;
    backdrop-filter: blur(8px);
    min-width: 140px;
}

.hero-stat .stat-num {
    font-family: var(--font-num);
    font-size: 32px;
    font-weight: 700;
    color: var(--color-accent);
    line-height: 1.2;
}

.hero-stat .stat-label {
    font-size: 13px;
    color: var(--text-secondary);
    margin-top: 4px;
}

.scroll-indicator {
    position: absolute;
    bottom: 24px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 3;
    color: var(--text-muted);
    font-size: 18px;
    animation: bounceDown 2s infinite;
}

@keyframes bounceDown {
    0%, 100% { transform: translate(-50%, 0); }
    50% { transform: translate(-50%, 8px); }
}

/* =========================================================
   Trust Stats Section
   ========================================================= */
.trust-stats {
    padding: 50px 0;
    background: linear-gradient(180deg, rgba(11,18,32,0.95), var(--bg-secondary));
    border-bottom: 1px solid rgba(255,255,255,0.04);
}

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

.trust-item {
    text-align: center;
    padding: 24px 16px;
}

.trust-item .stat-number {
    font-family: var(--font-num);
    font-size: 40px;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1.1;
}

.trust-item .stat-number em {
    font-style: normal;
    color: var(--color-cta);
}

.trust-item .stat-label {
    font-size: 14px;
    color: var(--text-secondary);
    margin-top: 8px;
}

/* =========================================================
   Content Intro
   ========================================================= */
.intro-section {
    background: var(--bg-primary);
}

.intro-grid {
    display: grid;
    grid-template-columns: 1.4fr 1fr;
    gap: 24px;
    align-items: stretch;
}

.intro-card {
    padding: 32px;
    display: flex;
    flex-direction: column;
}

.intro-card .intro-icon {
    width: 52px;
    height: 52px;
    border-radius: 14px;
    background: rgba(59,130,246,0.12);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    color: var(--color-primary);
    margin-bottom: 20px;
    transition: background 0.3s ease;
}

.intro-card:hover .intro-icon {
    background: rgba(0,229,160,0.15);
}

.intro-card:hover .intro-icon i {
    color: var(--color-accent);
}

.intro-card h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 10px;
}

.intro-card p {
    color: var(--text-secondary);
    font-size: 14px;
    line-height: 1.7;
    margin-bottom: 16px;
    flex: 1;
}

.intro-card .card-link {
    color: var(--color-accent);
    font-size: 13px;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: gap 0.2s ease;
}

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

.intro-stack {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}

.intro-card--media {
    overflow: hidden;
}

.intro-card--media .intro-media {
    border-radius: 12px;
    overflow: hidden;
    margin-bottom: 18px;
    position: relative;
}

.intro-card--media .intro-media img {
    width: 100%;
    height: 180px;
    object-fit: cover;
    transition: transform 0.5s ease;
}

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

.intro-card--media .intro-card p {
    margin-bottom: 10px;
}

.intro-card--wide {
    grid-column: 1 / -1;
    flex-direction: row;
    align-items: center;
    gap: 32px;
    padding: 32px;
}

.intro-card--wide .intro-media {
    flex: 0 0 280px;
    border-radius: 12px;
    overflow: hidden;
}

.intro-card--wide .intro-media img {
    width: 100%;
    height: 180px;
    object-fit: cover;
}

.intro-card--wide .intro-body {
    flex: 1;
}

.intro-card--wide .intro-icon {
    margin-bottom: 12px;
}

.intro-card--wide h3 {
    font-size: 22px;
}

/* =========================================================
   Rewards Section
   ========================================================= */
.rewards-section {
    background: var(--bg-tertiary);
    position: relative;
    overflow: hidden;
}

.rewards-section::before {
    content: "";
    position: absolute;
    top: -200px;
    left: 50%;
    transform: translateX(-50%);
    width: 600px;
    height: 400px;
    background: radial-gradient(ellipse, rgba(255,159,41,0.12), transparent 70%);
    pointer-events: none;
}

.rewards-layout {
    display: grid;
    grid-template-columns: 1fr 480px 1fr;
    gap: 40px;
    align-items: center;
}

.reward-points {
    display: grid;
    gap: 16px;
}

.reward-points--right {
    text-align: left;
}

.reward-point {
    display: flex;
    align-items: flex-start;
    gap: 14px;
    padding: 18px 20px;
    background: rgba(255,255,255,0.04);
    border: 1px solid rgba(255,255,255,0.06);
    border-radius: 14px;
    transition: border-color 0.3s ease, background 0.3s ease;
}

.reward-point:hover {
    border-color: rgba(255,159,41,0.40);
    background: rgba(255,159,41,0.06);
}

.reward-point-icon {
    width: 42px;
    height: 42px;
    border-radius: 10px;
    background: rgba(255,159,41,0.15);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-cta);
    font-size: 16px;
    flex-shrink: 0;
}

.reward-point h4 {
    font-size: 15px;
    font-weight: 600;
    margin-bottom: 4px;
}

.reward-point p {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.6;
}

.rewards-main {
    text-align: center;
    padding: 24px;
}

.rewards-main .rewards-badge {
    display: inline-block;
    background: rgba(255,159,41,0.15);
    color: var(--color-cta);
    border: 1px solid rgba(255,159,41,0.35);
    padding: 6px 18px;
    border-radius: 999px;
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 20px;
}

.rewards-main .reward-visual {
    position: relative;
    border-radius: 20px;
    overflow: hidden;
    margin-bottom: 20px;
    box-shadow: 0 20px 60px rgba(255,159,41,0.15);
}

.rewards-main .reward-visual img {
    width: 100%;
    height: 320px;
    object-fit: cover;
}

.rewards-main .reward-visual::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent, rgba(11,18,32,0.40));
}

.rewards-main .season-num {
    font-family: var(--font-num);
    font-size: 40px;
    font-weight: 800;
    color: var(--color-cta);
    line-height: 1.2;
}

.rewards-main .season-label {
    font-size: 14px;
    color: var(--text-secondary);
    margin-top: 4px;
}

/* =========================================================
   Season Progress
   ========================================================= */
.progress-section {
    background: var(--bg-primary);
    position: relative;
}

.progress-section::before {
    content: "";
    position: absolute;
    inset: 0;
    background: repeating-linear-gradient(135deg, rgba(255,255,255,0.015) 0, rgba(255,255,255,0.015) 1px, transparent 1px, transparent 8px);
    pointer-events: none;
}

.timeline-container {
    max-width: 860px;
    margin: 0 auto;
    position: relative;
}

.timeline-track {
    position: relative;
    display: flex;
    justify-content: space-between;
    padding: 30px 0;
}

.timeline-track::before {
    content: "";
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    height: 4px;
    background: rgba(255,255,255,0.08);
    border-radius: 999px;
    transform: translateY(-50%);
}

.timeline-progress {
    position: absolute;
    top: 50%;
    left: 0;
    height: 4px;
    width: 0;
    background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
    border-radius: 999px;
    transform: translateY(-50%);
    transition: width 1.2s ease 0.3s;
    box-shadow: 0 0 12px rgba(0,229,160,0.50);
}

.timeline-node {
    position: relative;
    z-index: 2;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
}

.timeline-dot {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--bg-primary);
    border: 3px solid rgba(255,255,255,0.15);
    transition: all 0.3s ease;
}

.timeline-node.done .timeline-dot {
    background: var(--color-accent);
    border-color: var(--color-accent);
    box-shadow: 0 0 10px rgba(0,229,160,0.30);
}

.timeline-node.current .timeline-dot {
    width: 24px;
    height: 24px;
    background: var(--color-accent);
    border-color: var(--color-accent);
    box-shadow: 0 0 0 6px rgba(0,229,160,0.20), 0 0 20px rgba(0,229,160,0.60);
}

.timeline-node.upcoming .timeline-dot {
    background: var(--bg-tertiary);
}

.timeline-label {
    font-size: 13px;
    color: var(--text-secondary);
    white-space: nowrap;
    text-align: center;
}

.timeline-node.current .timeline-label {
    color: var(--color-accent);
    font-weight: 600;
}

.timeline-node.done .timeline-label {
    color: var(--text-primary);
}

.activity-card {
    margin-top: 48px;
    background: rgba(255,255,255,0.05);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: 16px;
    padding: 28px 32px;
    display: flex;
    align-items: center;
    gap: 24px;
    flex-wrap: wrap;
}

.activity-info {
    flex: 1;
    min-width: 220px;
}

.activity-info .activity-tag {
    display: inline-block;
    background: rgba(0,229,160,0.12);
    color: var(--color-accent);
    border-radius: 999px;
    padding: 3px 12px;
    font-size: 12px;
    margin-bottom: 10px;
}

.activity-info h4 {
    font-size: 18px;
    margin-bottom: 6px;
}

.activity-info p {
    font-size: 13px;
    color: var(--text-secondary);
}

.activity-countdown {
    text-align: center;
    padding: 12px 24px;
    background: rgba(255,255,255,0.04);
    border-radius: 12px;
}

.activity-countdown .cd-num {
    font-family: var(--font-num);
    font-size: 28px;
    font-weight: 700;
    color: var(--color-cta);
}

.activity-countdown .cd-label {
    font-size: 12px;
    color: var(--text-secondary);
}

/* =========================================================
   News Section (CMS)
   ========================================================= */
.news-section {
    background: var(--bg-secondary);
}

.news-layout {
    display: grid;
    grid-template-columns: 1.35fr 1fr;
    gap: 24px;
    align-items: stretch;
}

.focus-card {
    display: block;
    background: rgba(255,255,255,0.05);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: 16px;
    overflow: hidden;
    height: 100%;
    transition: border-color 0.3s ease, transform 0.3s ease, box-shadow 0.3s ease;
}

.focus-card:hover {
    border-color: rgba(0,229,160,0.30);
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
}

.focus-card-media {
    position: relative;
    height: 260px;
    overflow: hidden;
}

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

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

.focus-card-body {
    padding: 24px;
}

.focus-card-body .focus-meta {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 10px;
}

.focus-card-body h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 10px;
    line-height: 1.4;
}

.focus-card-body p {
    color: var(--text-secondary);
    font-size: 14px;
    line-height: 1.7;
    margin-bottom: 16px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.focus-meta-item {
    font-size: 13px;
    color: var(--text-muted);
    display: inline-flex;
    align-items: center;
    gap: 5px;
}

.news-list-stack {
    display: flex;
    flex-direction: column;
    height: 100%;
}

.news-list-row {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 20px;
    background: rgba(255,255,255,0.03);
    border: 1px solid rgba(255,255,255,0.06);
    border-radius: 12px;
    margin-bottom: 12px;
    transition: background 0.3s ease, border-color 0.3s ease, padding-left 0.3s ease;
    position: relative;
    overflow: hidden;
}

.news-list-row::before {
    content: "";
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 3px;
    background: var(--color-primary);
    border-radius: 0 3px 3px 0;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.news-list-row:hover::before {
    opacity: 1;
}

.news-list-row:hover {
    background: rgba(255,255,255,0.06);
    border-color: rgba(59,130,246,0.30);
    padding-left: 24px;
}

.news-row-text {
    flex: 1;
    min-width: 0;
}

.news-row-text h4 {
    font-size: 15px;
    font-weight: 600;
    margin-bottom: 4px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.news-row-text p {
    font-size: 13px;
    color: var(--text-secondary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    margin-bottom: 8px;
}

.news-row-meta {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 12px;
    color: var(--text-muted);
}

.news-arrow {
    font-size: 14px;
    color: var(--text-muted);
    transition: color 0.3s ease, transform 0.3s ease;
    flex-shrink: 0;
}

.news-list-row:hover .news-arrow {
    color: var(--color-accent);
    transform: translateX(4px);
}

.empty-state {
    grid-column: 1 / -1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 60px 24px;
    border: 2px dashed rgba(255,255,255,0.12);
    border-radius: 16px;
    color: var(--text-muted);
}

.empty-state i {
    font-size: 36px;
    margin-bottom: 12px;
}

.empty-state p {
    font-size: 14px;
}

.news-view-all {
    text-align: center;
    margin-top: 36px;
}

.link-more {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--color-accent);
    font-size: 14px;
    font-weight: 600;
    transition: gap 0.2s ease;
}

.link-more:hover {
    gap: 12px;
    color: var(--color-accent);
}

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

.faq-wrap {
    max-width: 760px;
    margin: 0 auto;
}

.accordion {
    background: transparent;
}

.accordion-item {
    background: rgba(255,255,255,0.04);
    border: 1px solid rgba(255,255,255,0.07);
    border-radius: 14px;
    margin-bottom: 14px;
    overflow: hidden;
    transition: border-color 0.3s ease, background 0.3s ease;
}

.accordion-item.is-active {
    background: rgba(255,255,255,0.06);
    border-color: rgba(0,229,160,0.35);
}

.accordion-title {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 22px 24px;
    font-size: 15px;
    font-weight: 500;
    color: var(--text-primary);
    cursor: pointer;
    transition: color 0.3s ease;
}

.accordion-title:hover {
    color: var(--color-accent);
}

.accordion-title::before {
    display: none;
}

.accordion-title::after {
    content: "+" !important;
    font-size: 20px;
    color: var(--text-secondary);
    transition: transform 0.3s ease, color 0.3s ease;
    margin: 0 !important;
    font-weight: 400;
}

.accordion-item.is-active .accordion-title::after {
    transform: rotate(45deg);
    color: var(--color-accent);
}

.accordion-content {
    padding: 0 24px 22px;
    color: var(--text-secondary);
    font-size: 14px;
    line-height: 1.8;
    border-top: none;
    background: transparent;
}

/* =========================================================
   CTA Section
   ========================================================= */
.cta-section {
    position: relative;
    padding: 110px 0;
    background: linear-gradient(180deg, rgba(11,18,32,0.85), rgba(11,18,32,0.95)), url('/assets/images/backpic/back-2.png') center/cover no-repeat;
    text-align: center;
    overflow: hidden;
}

.cta-section::before {
    content: "";
    position: absolute;
    bottom: -100px;
    left: 50%;
    transform: translateX(-50%);
    width: 500px;
    height: 250px;
    background: radial-gradient(ellipse, rgba(0,229,160,0.15), transparent 70%);
    pointer-events: none;
}

.cta-section h2 {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 14px;
}

.cta-section p {
    color: var(--text-secondary);
    font-size: 16px;
    margin-bottom: 36px;
    max-width: 480px;
    margin-left: auto;
    margin-right: auto;
}

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

/* =========================================================
   Footer
   ========================================================= */
.site-footer {
    background: #080E18;
    border-top: 1px solid rgba(255,255,255,0.04);
    position: relative;
}

.site-footer::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(0,229,160,0.40), transparent);
}

.footer-top {
    padding: 64px 0 40px;
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.2fr;
    gap: 40px;
}

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

.footer-brand p {
    font-size: 13px;
    color: var(--text-muted);
    line-height: 1.8;
    max-width: 260px;
}

.footer-col h4 {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 16px;
}

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

.footer-col ul li a {
    font-size: 14px;
    color: var(--text-secondary);
    transition: color 0.2s ease, padding-left 0.2s ease;
    display: inline-block;
}

.footer-col ul li a:hover {
    color: #fff;
    padding-left: 4px;
}

.footer-social {
    display: flex;
    gap: 10px;
    margin-top: 14px;
}

.footer-social a {
    width: 38px;
    height: 38px;
    border-radius: 10px;
    background: rgba(255,255,255,0.04);
    border: 1px solid rgba(255,255,255,0.08);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    font-size: 14px;
    transition: all 0.3s ease;
}

.footer-social a:hover {
    color: var(--color-accent);
    border-color: rgba(0,229,160,0.30);
    background: rgba(0,229,160,0.08);
}

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.04);
    padding: 20px 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 12px;
}

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

.footer-bottom .footer-links {
    display: flex;
    align-items: center;
    gap: 20px;
}

.footer-bottom .footer-links a {
    font-size: 13px;
    color: var(--text-muted);
    transition: color 0.2s ease;
}

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

/* =========================================================
   Back to Top
   ========================================================= */
.back-to-top {
    position: fixed;
    bottom: 24px;
    right: 24px;
    z-index: 99;
    width: 44px;
    height: 44px;
    border-radius: 12px;
    background: rgba(255,255,255,0.06);
    border: 1px solid rgba(255,255,255,0.12);
    backdrop-filter: blur(10px);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-primary);
    font-size: 16px;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transform: translateY(12px);
    transition: all 0.3s ease;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    color: var(--color-accent);
    border-color: rgba(0,229,160,0.40);
    box-shadow: 0 0 20px rgba(0,229,160,0.20);
}

/* =========================================================
   Responsive
   ========================================================= */
@media screen and (max-width: 1024px) {
    .nav-center {
        display: none;
    }
    .command-bar {
        width: 180px;
    }
    .rewards-layout {
        grid-template-columns: 1fr;
    }
    .rewards-main {
        max-width: 480px;
        margin: 0 auto;
        order: -1;
    }
    .intro-grid {
        grid-template-columns: 1fr;
    }
    .intro-stack {
        grid-template-columns: 1fr 1fr;
    }
    .news-layout {
        grid-template-columns: 1fr;
    }
    .footer-top {
        grid-template-columns: 1fr 1fr;
    }
}

@media screen and (max-width: 768px) {
    :root {
        --space-section: 60px;
    }
    .command-bar {
        display: none;
    }
    .nav-icons {
        display: none;
    }
    .mobile-menu-btn {
        display: flex;
    }
    .header-inner {
        height: 64px;
    }
    .btn-cta-header {
        padding: 7px 14px;
        font-size: 12px;
    }
    .hero {
        padding: 100px 0 60px;
        min-height: auto;
    }
    .hero h1 {
        font-size: 28px;
    }
    .hero-subtitle {
        font-size: 15px;
    }
    .hero-ctas {
        flex-direction: column;
        width: 100%;
    }
    .hero-ctas .btn {
        width: 100%;
    }
    .hero-stats-bar {
        gap: 16px;
        margin-top: 40px;
    }
    .hero-stat {
        min-width: 100px;
        padding: 14px 16px;
    }
    .hero-stat .stat-num {
        font-size: 22px;
    }
    .trust-grid {
        grid-template-columns: 1fr 1fr;
        gap: 16px;
    }
    .trust-item .stat-number {
        font-size: 30px;
    }
    .intro-stack {
        grid-template-columns: 1fr;
    }
    .intro-card--wide {
        flex-direction: column;
    }
    .intro-card--wide .intro-media {
        flex: none;
        width: 100%;
    }
    .timeline-container {
        overflow-x: auto;
    }
    .timeline-track {
        min-width: 520px;
    }
    .activity-card {
        flex-direction: column;
        align-items: flex-start;
    }
    .activity-countdown {
        align-self: stretch;
    }
    .focus-card-media {
        height: 200px;
    }
    .cta-section h2 {
        font-size: 26px;
    }
    .cta-actions {
        flex-direction: column;
    }
    .cta-actions .btn {
        width: 100%;
    }
    .footer-top {
        grid-template-columns: 1fr;
        gap: 32px;
    }
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
    .section-head h2 {
        font-size: 24px;
    }
}

@media screen and (max-width: 520px) {
    .container {
        padding: 0 16px;
    }
    .btn {
        width: 100%;
    }
    .hero-stat {
        flex: 1;
    }
    .trust-grid {
        grid-template-columns: 1fr 1fr;
        gap: 12px;
    }
    .glass-card, .intro-card {
        padding: 22px;
    }
    .news-list-row {
        padding: 16px;
    }
    .news-row-text h4 {
        font-size: 14px;
    }
    .timeline-label {
        font-size: 12px;
    }
}

/* roulang page: category1 */
:root {
            --bg-primary: #0B1220;
            --bg-secondary: #0F1929;
            --bg-tertiary: #101C30;
            --glass-bg: rgba(255, 255, 255, 0.05);
            --glass-bg-hover: rgba(255, 255, 255, 0.09);
            --glass-border: rgba(255, 255, 255, 0.10);
            --brand-blue: #3B82F6;
            --sport-green: #00E5A0;
            --cta-orange: #FF9F29;
            --cta-orange-deep: #FF6B3D;
            --danger: #F43F5E;
            --text-primary: #E8EEF7;
            --text-secondary: #94A3B8;
            --text-muted: #64748B;
            --radius-lg: 16px;
            --radius-md: 12px;
            --radius-sm: 10px;
            --glow-orange: 0 4px 24px rgba(255, 159, 41, 0.35);
            --glow-orange-hover: 0 6px 32px rgba(255, 159, 41, 0.55);
            --glow-green: 0 0 12px rgba(0, 229, 160, 0.4);
            --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.35);
            --spacing-section: 100px;
            --spacing-section-md: 70px;
            --spacing-section-sm: 48px;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            background: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.8;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
        }

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

        a {
            color: var(--text-primary);
            text-decoration: none;
            transition: color 0.3s ease;
        }

        a:hover {
            color: var(--brand-blue);
        }

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

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

        /* ===== Header / Nav ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(11, 18, 32, 0.82);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            transition: box-shadow 0.3s ease, background 0.3s ease;
        }

        .site-header.scrolled {
            background: rgba(8, 14, 24, 0.95);
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
        }

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

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

        .logo-icon {
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--cta-orange), var(--cta-orange-deep));
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 16px;
            box-shadow: 0 0 18px rgba(255, 159, 41, 0.4);
        }

        .logo-text {
            font-size: 20px;
            font-weight: 700;
            letter-spacing: -0.3px;
            color: var(--text-primary);
            white-space: nowrap;
        }

        .logo-text span {
            color: var(--sport-green);
            font-weight: 600;
        }

        .nav-center {
            display: flex;
            align-items: center;
            gap: 6px;
            flex: 1;
            justify-content: center;
        }

        .nav-link {
            position: relative;
            padding: 10px 18px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: 8px;
            transition: color 0.3s ease, background 0.3s ease;
            white-space: nowrap;
        }

        .nav-link:hover {
            color: var(--text-primary);
            background: rgba(255, 255, 255, 0.04);
        }

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

        .nav-link.active::after {
            content: "";
            position: absolute;
            left: 18px;
            right: 18px;
            bottom: 4px;
            height: 2px;
            border-radius: 2px;
            background: linear-gradient(90deg, var(--brand-blue), var(--sport-green));
            box-shadow: 0 0 10px rgba(0, 229, 160, 0.5);
        }

        .header-right {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }

        .command-search {
            display: flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.10);
            border-radius: 10px;
            padding: 8px 14px;
            width: 230px;
            color: var(--text-muted);
            font-size: 13px;
            cursor: pointer;
            transition: border-color 0.3s ease, background 0.3s ease;
        }

        .command-search:hover {
            background: rgba(255, 255, 255, 0.08);
            border-color: rgba(59, 130, 246, 0.4);
        }

        .command-search .search-icon {
            color: var(--text-secondary);
            font-size: 13px;
        }

        .command-search .shortcut {
            margin-left: auto;
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: 4px;
            padding: 1px 6px;
            font-size: 11px;
            color: var(--text-secondary);
            font-family: "Inter", sans-serif;
        }

        .header-icon-btn {
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-secondary);
            font-size: 14px;
            cursor: pointer;
            transition: all 0.3s ease;
        }

        .header-icon-btn:hover {
            background: rgba(255, 255, 255, 0.1);
            color: var(--sport-green);
            border-color: rgba(0, 229, 160, 0.3);
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: linear-gradient(135deg, var(--cta-orange), var(--cta-orange-deep));
            color: #fff;
            font-size: 14px;
            font-weight: 600;
            padding: 11px 24px;
            border-radius: 10px;
            cursor: pointer;
            box-shadow: var(--glow-orange);
            transition: all 0.3s ease;
            white-space: nowrap;
            border: none;
        }

        .btn-primary:hover {
            color: #fff;
            box-shadow: var(--glow-orange-hover);
            transform: translateY(-2px);
            filter: brightness(1.08);
        }

        .btn-primary:active {
            transform: translateY(1px);
            box-shadow: 0 2px 12px rgba(255, 159, 41, 0.3);
        }

        .btn-primary.small {
            padding: 8px 18px;
            font-size: 13px;
        }

        .btn-glass {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.15);
            color: var(--text-primary);
            font-size: 14px;
            font-weight: 500;
            padding: 11px 24px;
            border-radius: 10px;
            cursor: pointer;
            transition: all 0.3s ease;
            white-space: nowrap;
        }

        .btn-glass:hover {
            background: rgba(255, 255, 255, 0.12);
            border-color: rgba(59, 130, 246, 0.5);
            color: var(--text-primary);
            transform: translateY(-2px);
        }

        .btn-glass:active {
            transform: translateY(1px);
        }

        .btn-text {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--brand-blue);
            font-size: 14px;
            font-weight: 500;
            cursor: pointer;
            transition: all 0.3s ease;
        }

        .btn-text:hover {
            color: var(--sport-green);
            gap: 10px;
        }

        .hamburger {
            display: none;
            width: 40px;
            height: 40px;
            border-radius: 10px;
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.08);
            color: var(--text-primary);
            font-size: 16px;
            cursor: pointer;
            align-items: center;
            justify-content: center;
        }

        /* Mobile nav drawer */
        .mobile-nav {
            display: none;
            position: fixed;
            top: 72px;
            left: 0;
            right: 0;
            background: rgba(8, 14, 24, 0.98);
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            padding: 16px 24px 24px;
            z-index: 999;
            backdrop-filter: blur(20px);
        }

        .mobile-nav.open {
            display: block;
        }

        .mobile-nav a {
            display: block;
            padding: 14px 12px;
            font-size: 16px;
            color: var(--text-secondary);
            border-radius: 10px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.04);
        }

        .mobile-nav a:hover {
            color: var(--text-primary);
            background: rgba(255, 255, 255, 0.04);
        }

        .mobile-nav a.active {
            color: var(--sport-green);
        }

        /* ===== Hero ===== */
        .category-hero {
            position: relative;
            min-height: 42vh;
            display: flex;
            align-items: center;
            justify-content: center;
            text-align: center;
            padding: 140px 24px 80px;
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            overflow: hidden;
        }

        .category-hero::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(11, 18, 32, 0.55) 0%, rgba(11, 18, 32, 0.92) 100%);
            z-index: 1;
        }

        .category-hero::after {
            content: "";
            position: absolute;
            inset: 0;
            background:
                repeating-linear-gradient(115deg, transparent 0px, transparent 22px, rgba(255, 255, 255, 0.02) 22px, rgba(255, 255, 255, 0.02) 23px);
            z-index: 1;
        }

        .category-hero .hero-content {
            position: relative;
            z-index: 2;
            max-width: 800px;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(0, 229, 160, 0.12);
            border: 1px solid rgba(0, 229, 160, 0.3);
            color: var(--sport-green);
            font-size: 13px;
            font-weight: 500;
            padding: 6px 16px;
            border-radius: 999px;
            margin-bottom: 24px;
            letter-spacing: 1px;
        }

        .category-hero h1 {
            font-size: 42px;
            font-weight: 700;
            line-height: 1.3;
            letter-spacing: -0.5px;
            color: #fff;
            margin-bottom: 18px;
        }

        .category-hero h1 span {
            color: var(--sport-green);
        }

        .category-hero p {
            font-size: 17px;
            color: var(--text-secondary);
            max-width: 560px;
            margin: 0 auto 32px;
            line-height: 1.8;
        }

        .hero-cta-group {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        .hero-metrics {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 40px;
            margin-top: 48px;
            flex-wrap: wrap;
        }

        .hero-metric-item {
            text-align: center;
        }

        .hero-metric-item .num {
            font-family: "Inter", "DIN Alternate", sans-serif;
            font-size: 26px;
            font-weight: 700;
            color: var(--text-primary);
            line-height: 1.2;
        }

        .hero-metric-item .num i {
            color: var(--sport-green);
            font-size: 18px;
            margin-right: 2px;
        }

        .hero-metric-item .label {
            font-size: 12px;
            color: var(--text-muted);
            margin-top: 2px;
        }

        /* ===== Sections ===== */
        .section {
            padding: var(--spacing-section) 0;
        }

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

        .section-header {
            text-align: center;
            max-width: 680px;
            margin: 0 auto 56px;
        }

        .section-header .eyebrow {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            color: var(--sport-green);
            background: rgba(0, 229, 160, 0.08);
            border: 1px solid rgba(0, 229, 160, 0.2);
            padding: 4px 14px;
            border-radius: 999px;
            margin-bottom: 16px;
            letter-spacing: 1px;
        }

        .section-header h2 {
            font-size: 32px;
            font-weight: 600;
            color: var(--text-primary);
            line-height: 1.4;
            letter-spacing: -0.3px;
            margin-bottom: 14px;
        }

        .section-header p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* ===== Cards ===== */
        .glass-card {
            position: relative;
            background: var(--glass-bg);
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-lg);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            overflow: hidden;
            transition: transform 0.35s ease, border-color 0.35s ease, box-shadow 0.35s ease;
        }

        .glass-card::before {
            content: "";
            position: absolute;
            top: 0;
            left: 8%;
            right: 8%;
            height: 1px;
            background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.25), transparent);
            opacity: 0;
            transition: opacity 0.35s ease;
            z-index: 1;
        }

        .glass-card:hover {
            transform: translateY(-4px);
            border-color: rgba(0, 229, 160, 0.35);
            box-shadow: 0 12px 40px rgba(0, 0, 0, 0.4);
        }

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

        /* ===== Category Grid ===== */
        .category-grid {
            display: grid;
            grid-template-columns: 1.35fr 1fr;
            gap: 24px;
            align-items: stretch;
        }

        .category-card {
            padding: 0;
            display: flex;
            flex-direction: column;
        }

        .category-card .card-media {
            position: relative;
            overflow: hidden;
            min-height: 220px;
        }

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

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

        .category-card .card-media::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(11, 18, 32, 0.1) 0%, rgba(11, 18, 32, 0.7) 100%);
        }

        .category-card .card-media .cat-tag {
            position: absolute;
            top: 16px;
            left: 16px;
            z-index: 2;
            background: rgba(8, 14, 24, 0.7);
            backdrop-filter: blur(6px);
            border: 1px solid rgba(0, 229, 160, 0.25);
            color: var(--sport-green);
            font-size: 12px;
            padding: 4px 12px;
            border-radius: 999px;
            letter-spacing: 0.5px;
        }

        .category-card .card-body {
            padding: 26px 28px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .category-card .card-body h3 {
            font-size: 20px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 10px;
        }

        .category-card .card-body p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.75;
            margin-bottom: 18px;
            flex: 1;
        }

        .category-card .card-features {
            list-style: none;
            margin: 0 0 18px;
            padding: 0;
        }

        .category-card .card-features li {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-secondary);
            padding: 4px 0;
        }

        .category-card .card-features li i {
            color: var(--sport-green);
            font-size: 11px;
        }

        .category-card.large-card .card-media {
            min-height: 280px;
        }

        .category-card.small-card .card-media {
            min-height: 160px;
        }

        .category-card.small-card .card-body {
            padding: 20px 22px;
        }

        .category-card.small-card .card-body h3 {
            font-size: 18px;
        }

        .category-card.small-card .card-body p {
            font-size: 13px;
            margin-bottom: 12px;
        }

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

        /* ===== Featured / Hot Matches ===== */
        .featured-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .featured-card {
            padding: 24px;
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .featured-card .featured-icon {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            background: rgba(59, 130, 246, 0.12);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            color: var(--brand-blue);
            transition: all 0.3s ease;
        }

        .featured-card:hover .featured-icon {
            background: rgba(0, 229, 160, 0.15);
            color: var(--sport-green);
        }

        .featured-card h3 {
            font-size: 17px;
            font-weight: 600;
            color: var(--text-primary);
        }

        .featured-card p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.65;
            flex: 1;
        }

        .featured-card .featured-meta {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 12px;
            color: var(--text-muted);
        }

        .featured-card .featured-meta .badge {
            background: rgba(255, 159, 41, 0.15);
            color: var(--cta-orange);
            border: 1px solid rgba(255, 159, 41, 0.25);
            padding: 2px 10px;
            border-radius: 999px;
            font-size: 11px;
            font-weight: 500;
        }

        /* ===== Split / Alternating ===== */
        .split-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 56px;
            align-items: center;
            margin-bottom: 60px;
        }

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

        .split-row.reverse .split-media {
            order: 2;
        }

        .split-row.reverse .split-content {
            order: 1;
        }

        .split-media {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: 0 16px 48px rgba(0, 0, 0, 0.35);
            position: relative;
        }

        .split-media img {
            width: 100%;
            height: 320px;
            object-fit: cover;
        }

        .split-media .play-btn {
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            width: 60px;
            height: 60px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.15);
            backdrop-filter: blur(8px);
            border: 1px solid rgba(255, 255, 255, 0.3);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 20px;
            cursor: pointer;
            transition: all 0.3s ease;
        }

        .split-media .play-btn:hover {
            background: rgba(255, 159, 41, 0.6);
            transform: translate(-50%, -50%) scale(1.08);
        }

        .split-content .eyebrow {
            display: inline-block;
            font-size: 13px;
            color: var(--sport-green);
            background: rgba(0, 229, 160, 0.08);
            padding: 4px 14px;
            border-radius: 999px;
            border: 1px solid rgba(0, 229, 160, 0.2);
            margin-bottom: 16px;
        }

        .split-content h3 {
            font-size: 26px;
            font-weight: 600;
            color: var(--text-primary);
            line-height: 1.4;
            margin-bottom: 16px;
        }

        .split-content p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 20px;
        }

        .split-content .feature-list {
            list-style: none;
            padding: 0;
            margin: 0 0 24px;
        }

        .split-content .feature-list li {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            color: var(--text-primary);
            padding: 6px 0;
        }

        .split-content .feature-list li i {
            color: var(--sport-green);
            font-size: 13px;
        }

        /* ===== Stats ===== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            text-align: center;
        }

        .stat-item {
            padding: 36px 24px;
            background: var(--glass-bg);
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-lg);
            transition: all 0.3s ease;
            position: relative;
            overflow: hidden;
        }

        .stat-item::after {
            content: "";
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 0;
            height: 2px;
            background: linear-gradient(90deg, var(--brand-blue), var(--sport-green));
            transition: width 0.4s ease;
        }

        .stat-item:hover::after {
            width: 60%;
        }

        .stat-item:hover {
            border-color: rgba(0, 229, 160, 0.25);
            transform: translateY(-3px);
        }

        .stat-item .stat-num {
            font-family: "Inter", "DIN Alternate", sans-serif;
            font-size: 38px;
            font-weight: 700;
            color: var(--text-primary);
            line-height: 1.2;
            margin-bottom: 8px;
        }

        .stat-item .stat-num em {
            font-style: normal;
            color: var(--sport-green);
        }

        .stat-item .stat-label {
            font-size: 14px;
            color: var(--text-secondary);
        }

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

        .faq-item {
            background: var(--glass-bg);
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-md);
            margin-bottom: 14px;
            overflow: hidden;
            transition: border-color 0.3s ease, background 0.3s ease;
        }

        .faq-item.open {
            background: rgba(0, 229, 160, 0.04);
            border-color: rgba(0, 229, 160, 0.25);
        }

        .faq-item.open .faq-question {
            color: var(--sport-green);
        }

        .faq-item.open .faq-icon {
            transform: rotate(45deg);
            background: rgba(0, 229, 160, 0.15);
            color: var(--sport-green);
            border-color: rgba(0, 229, 160, 0.3);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 20px 24px;
            cursor: pointer;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-primary);
            transition: color 0.3s ease;
            user-select: none;
        }

        .faq-icon {
            position: relative;
            width: 28px;
            height: 28px;
            border-radius: 8px;
            border: 1px solid rgba(255, 255, 255, 0.1);
            background: rgba(255, 255, 255, 0.05);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 13px;
            color: var(--text-secondary);
            transition: all 0.35s ease;
            flex-shrink: 0;
            font-style: normal;
        }

        .faq-item.open .faq-question::before {
            content: "";
            position: absolute;
            left: 0;
            top: 20%;
            bottom: 20%;
            width: 2px;
            border-radius: 2px;
            background: var(--sport-green);
            box-shadow: 0 0 8px rgba(0, 229, 160, 0.5);
        }

        .faq-question {
            position: relative;
        }

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

        .faq-answer-inner {
            padding: 0 24px 22px 24px;
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.8;
            border-top: 1px solid rgba(255, 255, 255, 0.04);
            padding-top: 14px;
        }

        /* ===== CTA ===== */
        .cta-section {
            position: relative;
            padding: 100px 0;
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            text-align: center;
            overflow: hidden;
        }

        .cta-section::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(11, 18, 32, 0.85), rgba(15, 25, 41, 0.95));
        }

        .cta-content {
            position: relative;
            z-index: 2;
            max-width: 680px;
            margin: 0 auto;
        }

        .cta-content h2 {
            font-size: 34px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 18px;
            letter-spacing: -0.3px;
        }

        .cta-content h2 span {
            color: var(--cta-orange);
        }

        .cta-content p {
            font-size: 16px;
            color: var(--text-secondary);
            margin-bottom: 36px;
        }

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

        /* ===== Footer ===== */
        .site-footer {
            background: #080E18;
            border-top: 1px solid transparent;
            background-image: linear-gradient(180deg, #080E18, #080E18);
            position: relative;
            padding-top: 70px;
        }

        .site-footer::before {
            content: "";
            position: absolute;
            top: 0;
            left: 15%;
            right: 15%;
            height: 1px;
            background: linear-gradient(90deg, transparent, rgba(0, 229, 160, 0.5), transparent);
        }

        .footer-top {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 50px;
        }

        .footer-brand .logo {
            margin-bottom: 16px;
        }

        .footer-brand p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            max-width: 280px;
            margin-bottom: 20px;
        }

        .footer-social {
            display: flex;
            gap: 10px;
        }

        .footer-social a {
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.06);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-secondary);
            font-size: 14px;
            transition: all 0.3s ease;
        }

        .footer-social a:hover {
            background: rgba(0, 229, 160, 0.12);
            color: var(--sport-green);
            border-color: rgba(0, 229, 160, 0.3);
            transform: translateY(-2px);
        }

        .footer-col h4 {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 18px;
        }

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

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

        .footer-col ul li a {
            font-size: 14px;
            color: var(--text-secondary);
            transition: color 0.3s ease, padding-left 0.3s ease;
        }

        .footer-col ul li a:hover {
            color: #fff;
            padding-left: 4px;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            padding: 24px 0;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
            font-size: 13px;
            color: var(--text-muted);
        }

        .footer-links {
            display: flex;
            gap: 20px;
        }

        .footer-links a {
            font-size: 13px;
            color: var(--text-muted);
        }

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

        /* ===== Back to top ===== */
        .back-top {
            position: fixed;
            bottom: 30px;
            right: 30px;
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.12);
            backdrop-filter: blur(10px);
            color: var(--text-primary);
            font-size: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            opacity: 0;
            visibility: hidden;
            transform: translateY(20px);
            transition: all 0.4s ease;
            z-index: 999;
        }

        .back-top.show {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }

        .back-top:hover {
            border-color: rgba(0, 229, 160, 0.4);
            color: var(--sport-green);
            box-shadow: 0 0 20px rgba(0, 229, 160, 0.2);
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .command-search {
                display: none;
            }

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

            .stack-cards {
                display: grid;
                grid-template-columns: 1fr 1fr;
            }

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

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

            .split-row {
                grid-template-columns: 1fr;
                gap: 36px;
            }

            .split-row.reverse .split-media {
                order: 1;
            }

            .split-row.reverse .split-content {
                order: 2;
            }

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

        @media (max-width: 768px) {
            .nav-center {
                display: none;
            }

            .hamburger {
                display: flex;
            }

            .header-icon-btn {
                display: none;
            }

            .header-inner {
                height: 64px;
            }

            .mobile-nav {
                top: 64px;
            }

            .category-hero {
                min-height: 50vh;
                padding: 120px 20px 60px;
            }

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

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

            .hero-cta-group {
                flex-direction: column;
                gap: 12px;
            }

            .hero-cta-group .btn-primary,
            .hero-cta-group .btn-glass {
                width: 200px;
            }

            .hero-metrics {
                gap: 24px;
            }

            .section {
                padding: 60px 0;
            }

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

            .logo-text {
                font-size: 17px;
            }

            .cta-section {
                padding: 70px 0;
            }

            .cta-content h2 {
                font-size: 26px;
            }

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

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

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }

            .stack-cards {
                grid-template-columns: 1fr;
            }

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

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

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

            .hero-metrics {
                gap: 18px;
            }

            .hero-metric-item .num {
                font-size: 20px;
            }

            .btn-primary,
            .btn-glass {
                width: 100%;
                justify-content: center;
            }

            .header-cta {
                display: none;
            }

            .split-media img {
                height: 220px;
            }
        }

/* roulang page: article */
/* ===== 设计变量 ===== */
:root {
    --bg-primary: #0B1220;
    --bg-secondary: #0F1929;
    --bg-tertiary: #101C30;
    --brand-blue: #3B82F6;
    --brand-green: #00E5A0;
    --brand-orange: #FF9F29;
    --brand-orange-deep: #FF6B3D;
    --brand-red: #F43F5E;
    --text-primary: #E8EEF7;
    --text-secondary: #94A3B8;
    --text-muted: #64748B;
    --card-bg: rgba(255,255,255,0.05);
    --card-border: rgba(255,255,255,0.08);
    --card-border-hover: rgba(0,229,160,0.35);
    --radius-sm: 10px;
    --radius-md: 14px;
    --radius-lg: 20px;
    --shadow-card: 0 12px 40px rgba(0,0,0,0.4);
    --shadow-glow-orange: 0 4px 24px rgba(255,159,41,0.35);
    --shadow-glow-green: 0 0 16px rgba(0,229,160,0.4);
    --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
    --font-num: "Inter", "DIN Alternate", "Roboto", sans-serif;
}

/* ===== Reset / Base ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
    font-family: var(--font-sans);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
    font-size: 15px;
}
img { max-width: 100%; display: block; }
a { color: var(--brand-blue); text-decoration: none; transition: color .2s; }
button { font-family: inherit; cursor: pointer; }
input, textarea { font-family: inherit; }
ul, ol { list-style: none; }

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

/* ===== 头部导航 ===== */
.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(11,18,32,0.83);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    border-bottom: 1px solid rgba(255,255,255,0.06);
    transition: background .3s ease;
}
.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
    gap: 20px;
}
.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--text-primary);
    font-size: 20px;
    font-weight: 700;
    text-decoration: none;
    flex-shrink: 0;
}
.logo:hover { color: var(--text-primary); }
.logo-icon {
    width: 38px;
    height: 38px;
    border-radius: 11px;
    background: linear-gradient(135deg, var(--brand-blue), var(--brand-green));
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 17px;
    box-shadow: 0 0 18px rgba(0,229,160,0.35);
    flex-shrink: 0;
}
.logo-text { letter-spacing: .4px; line-height: 1.2; }
.logo-text span { color: var(--brand-green); }
.logo-sub {
    display: block;
    font-size: 10px;
    color: var(--text-muted);
    letter-spacing: 1.2px;
    font-weight: 400;
    margin-top: 1px;
}
.nav-center { display: flex; align-items: center; gap: 4px; }
.nav-link {
    display: inline-block;
    padding: 8px 16px;
    color: var(--text-secondary);
    font-size: 15px;
    border-radius: 8px;
    text-decoration: none;
    transition: all .25s ease;
    position: relative;
    font-weight: 500;
    white-space: nowrap;
}
.nav-link:hover { color: var(--text-primary); background: rgba(255,255,255,0.05); }
.nav-link.active { color: var(--brand-green); }
.nav-link.active::after {
    content: '';
    position: absolute;
    left: 16px;
    right: 16px;
    bottom: 2px;
    height: 2px;
    border-radius: 2px;
    background: linear-gradient(90deg, var(--brand-blue), var(--brand-green));
    box-shadow: 0 0 8px rgba(0,229,160,0.6);
}
.header-actions {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-shrink: 0;
}
.search-trigger {
    display: flex;
    align-items: center;
    gap: 8px;
    background: rgba(255,255,255,0.06);
    border: 1px solid rgba(255,255,255,0.10);
    border-radius: 999px;
    padding: 7px 14px;
    min-width: 216px;
    cursor: pointer;
    transition: all .25s;
    color: var(--text-muted);
    font-size: 13px;
    user-select: none;
}
.search-trigger:hover { border-color: rgba(59,130,246,0.5); background: rgba(255,255,255,0.1); color: var(--text-secondary); }
.search-trigger .kbd {
    margin-left: auto;
    background: rgba(255,255,255,0.08);
    border: 1px solid rgba(255,255,255,0.12);
    border-radius: 4px;
    padding: 1px 6px;
    font-size: 11px;
    font-family: var(--font-num);
    color: var(--text-secondary);
}
.header-icon {
    width: 38px;
    height: 38px;
    border-radius: 10px;
    background: rgba(255,255,255,0.06);
    border: 1px solid rgba(255,255,255,0.08);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    transition: all .25s;
    text-decoration: none;
    font-size: 14px;
}
.header-icon:hover { color: var(--brand-green); border-color: rgba(0,229,160,0.4); box-shadow: 0 0 12px rgba(0,229,160,0.2); }
.nav-toggle {
    display: none;
    width: 40px;
    height: 40px;
    border-radius: 10px;
    background: rgba(255,255,255,0.06);
    border: 1px solid rgba(255,255,255,0.1);
    color: var(--text-primary);
    font-size: 16px;
    align-items: center;
    justify-content: center;
    transition: all .25s;
}
.nav-toggle:hover { border-color: rgba(0,229,160,0.4); }
.nav-toggle.is-active { color: var(--brand-green); border-color: rgba(0,229,160,0.4); }

/* ===== 命令搜索面板 ===== */
.cmd-modal {
    position: fixed;
    inset: 0;
    z-index: 200;
    background: rgba(8,14,24,0.75);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    display: none;
    align-items: flex-start;
    justify-content: center;
    padding: 12vh 24px 24px;
}
.cmd-modal.open { display: flex; }
.cmd-panel {
    width: 100%;
    max-width: 580px;
    background: var(--bg-tertiary);
    border: 1px solid rgba(255,255,255,0.12);
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 24px 80px rgba(0,0,0,0.6);
    animation: cmdIn .25s ease;
}
@keyframes cmdIn {
    from { opacity: 0; transform: translateY(-12px); }
    to { opacity: 1; transform: translateY(0); }
}
.cmd-input-wrap {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 20px 22px;
    border-bottom: 1px solid rgba(255,255,255,0.08);
}
.cmd-input-wrap > i { color: var(--text-muted); font-size: 15px; }
.cmd-input-wrap input {
    flex: 1;
    background: transparent;
    border: none;
    outline: none;
    color: var(--text-primary);
    font-size: 16px;
}
.cmd-input-wrap input::placeholder { color: var(--text-muted); }
.cmd-close {
    width: 32px;
    height: 32px;
    border-radius: 8px;
    background: rgba(255,255,255,0.06);
    border: 1px solid rgba(255,255,255,0.1);
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all .2s;
    font-size: 13px;
}
.cmd-close:hover { color: var(--brand-red); border-color: rgba(244,63,94,0.5); }
.cmd-groups { padding: 16px 20px 20px; }
.cmd-group { margin-bottom: 18px; }
.cmd-group:last-child { margin-bottom: 0; }
.cmd-group-title {
    font-size: 12px;
    color: var(--text-muted);
    letter-spacing: .8px;
    margin-bottom: 8px;
    font-weight: 600;
}
.cmd-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 12px;
    border-radius: 10px;
    color: var(--text-secondary);
    text-decoration: none;
    transition: all .2s;
    font-size: 14px;
}
.cmd-item i { width: 18px; text-align: center; color: var(--text-muted); transition: color .2s; }
.cmd-item:hover { background: rgba(0,229,160,0.12); color: var(--text-primary); }
.cmd-item:hover i { color: var(--brand-green); }

/* ===== 按钮 ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    border-radius: var(--radius-sm);
    font-size: 15px;
    font-weight: 600;
    padding: 12px 26px;
    text-decoration: none;
    transition: all .3s ease;
    border: none;
    cursor: pointer;
    line-height: 1.4;
    white-space: nowrap;
}
.btn-primary {
    background: linear-gradient(135deg, var(--brand-orange), var(--brand-orange-deep));
    color: #fff;
    box-shadow: var(--shadow-glow-orange);
}
.btn-primary:hover {
    filter: brightness(1.08);
    box-shadow: 0 6px 32px rgba(255,159,41,0.55);
    transform: translateY(-2px);
    color: #fff;
}
.btn-primary:active {
    transform: translateY(1px);
    box-shadow: 0 2px 16px rgba(255,159,41,0.3);
}
.btn-ghost {
    background: rgba(255,255,255,0.06);
    border: 1px solid rgba(255,255,255,0.15);
    color: var(--text-primary);
}
.btn-ghost:hover {
    background: rgba(255,255,255,0.12);
    border-color: rgba(59,130,246,0.5);
    color: var(--text-primary);
    transform: translateY(-2px);
}
.btn-sm { padding: 8px 18px; font-size: 14px; }

/* ===== 标签 ===== */
.tag {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: rgba(0,229,160,0.12);
    color: var(--brand-green);
    border: 1px solid rgba(0,229,160,0.3);
    border-radius: 999px;
    padding: 4px 14px;
    font-size: 12px;
    font-weight: 500;
    letter-spacing: .4px;
    line-height: 1.6;
}
.tag-orange {
    background: rgba(255,159,41,0.15);
    color: var(--brand-orange);
    border-color: rgba(255,159,41,0.35);
}
.tag-blue {
    background: rgba(59,130,246,0.12);
    color: var(--brand-blue);
    border-color: rgba(59,130,246,0.3);
}

/* ===== 页面 Hero ===== */
.page-hero {
    position: relative;
    padding: 64px 0 110px;
    background:
        linear-gradient(180deg, rgba(11,18,32,0.80) 0%, rgba(11,18,32,0.95) 100%),
        url('/assets/images/backpic/back-2.png') center/cover no-repeat;
    border-bottom: 1px solid rgba(255,255,255,0.05);
}
.breadcrumb {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
    font-size: 13px;
    color: var(--text-muted);
    margin-bottom: 32px;
}
.breadcrumb a { color: var(--text-secondary); text-decoration: none; transition: color .2s; }
.breadcrumb a:hover { color: var(--brand-green); }
.breadcrumb .sep { font-size: 10px; color: var(--text-muted); }
.breadcrumb .current { color: var(--text-primary); }
.article-head { max-width: 860px; }
.article-head .tag { margin-bottom: 18px; }
.article-head h1 {
    font-size: 42px;
    line-height: 1.32;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0 0 22px;
    letter-spacing: -0.5px;
}
.article-head-meta {
    display: flex;
    align-items: center;
    gap: 20px;
    font-size: 14px;
    color: var(--text-muted);
    flex-wrap: wrap;
}
.article-head-meta span {
    display: inline-flex;
    align-items: center;
    gap: 7px;
}
.article-head-meta i { color: var(--text-muted); font-size: 13px; }

/* ===== 文章主体 ===== */
.article-section { background: var(--bg-primary); padding: 0 0 30px; }
.article-body {
    max-width: 820px;
    margin: -48px auto 0;
    position: relative;
    z-index: 2;
    background: rgba(255,255,255,0.045);
    border: 1px solid rgba(255,255,255,0.09);
    border-radius: 24px;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    padding: 48px 56px;
    box-shadow: var(--shadow-card);
}
.article-body h2 {
    font-size: 24px;
    color: var(--text-primary);
    margin: 1.8em 0 .8em;
    padding-left: 16px;
    border-left: 3px solid var(--brand-green);
    line-height: 1.4;
}
.article-body h3 {
    font-size: 19px;
    color: var(--text-primary);
    margin: 1.6em 0 .7em;
    line-height: 1.4;
}
.article-body h4 {
    font-size: 16px;
    color: var(--text-primary);
    margin: 1.4em 0 .6em;
}
.article-body p {
    font-size: 16px;
    line-height: 1.9;
    color: var(--text-primary);
    margin-bottom: 1.5em;
}
.article-body a { color: var(--brand-green); text-decoration: underline; text-underline-offset: 3px; }
.article-body img {
    max-width: 100%;
    border-radius: 14px;
    margin: 26px 0;
    box-shadow: 0 8px 30px rgba(0,0,0,0.35);
}
.article-body blockquote {
    margin: 28px 0;
    padding: 20px 24px;
    background: rgba(255,255,255,0.03);
    border-left: 4px solid var(--brand-orange);
    border-radius: 0 12px 12px 0;
    color: var(--text-secondary);
    font-size: 15px;
    line-height: 1.8;
}
.article-body ul,
.article-body ol {
    padding-left: 1.5em;
    margin-bottom: 1.5em;
    color: var(--text-primary);
}
.article-body ul { list-style: disc; }
.article-body ol { list-style: decimal; }
.article-body li { margin-bottom: .55em; line-height: 1.8; }
.article-body table {
    width: 100%;
    border-collapse: collapse;
    margin: 24px 0;
    font-size: 14px;
}
.article-body table th,
.article-body table td {
    padding: 12px 16px;
    border: 1px solid rgba(255,255,255,0.08);
    text-align: left;
}
.article-body table th {
    background: rgba(59,130,246,0.1);
    color: var(--text-primary);
    font-weight: 600;
}
.article-body table tr:nth-child(even) { background: rgba(255,255,255,0.02); }
.table-wrap { overflow-x: auto; }

/* ===== 空态 ===== */
.article-empty {
    text-align: center;
    padding: 70px 24px;
}
.empty-icon {
    width: 76px;
    height: 76px;
    border-radius: 50%;
    background: rgba(255,255,255,0.04);
    border: 1px solid rgba(255,255,255,0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 30px;
    color: var(--text-muted);
    margin: 0 auto 22px;
}
.article-empty h2 { color: var(--text-primary); font-size: 24px; margin-bottom: 12px; }
.article-empty p { color: var(--text-muted); margin-bottom: 28px; font-size: 15px; }

/* ===== 文章下方信息 ===== */
.article-lower {
    max-width: 820px;
    margin: 28px auto 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 16px;
}
.article-tags { display: flex; flex-wrap: wrap; gap: 8px; }
.article-share {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 13px;
    color: var(--text-muted);
}
.share-btn {
    width: 34px;
    height: 34px;
    border-radius: 50%;
    background: rgba(255,255,255,0.06);
    border: 1px solid rgba(255,255,255,0.1);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    text-decoration: none;
    transition: all .25s;
    font-size: 13px;
}
.share-btn:hover {
    background: rgba(59,130,246,0.15);
    border-color: rgba(59,130,246,0.5);
    color: var(--text-primary);
    transform: translateY(-2px);
}
.article-back {
    max-width: 820px;
    margin: 24px auto 70px;
    text-align: center;
}
.article-back a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 14px;
    transition: all .25s;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}
.article-back a:hover { color: var(--brand-green); gap: 12px; }

/* ===== 相关推荐 ===== */
.related-section {
    background: var(--bg-secondary);
    padding: 90px 0;
    border-top: 1px solid rgba(255,255,255,0.04);
}
.section-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 42px;
    gap: 20px;
}
.section-head h2 { font-size: 30px; color: var(--text-primary); font-weight: 600; letter-spacing: -0.3px; }
.more-link { color: var(--brand-green); font-size: 14px; text-decoration: none; display: inline-flex; align-items: center; gap: 6px; transition: gap .25s; white-space: nowrap; }
.more-link:hover { gap: 10px; color: var(--brand-green); }
.related-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all .3s ease;
    height: 100%;
    display: flex;
    flex-direction: column;
    position: relative;
}
.related-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--brand-blue), var(--brand-green));
    opacity: 0;
    transition: opacity .3s;
    z-index: 1;
}
.related-card:hover {
    transform: translateY(-6px);
    border-color: var(--card-border-hover);
    box-shadow: var(--shadow-card);
}
.related-card:hover::before { opacity: 1; }
.related-card .card-img { width: 100%; height: 180px; object-fit: cover; display: block; }
.related-card-body { padding: 22px 24px; flex: 1; display: flex; flex-direction: column; }
.related-card-body .tag { align-self: flex-start; margin-bottom: 12px; }
.related-card-body h3 {
    font-size: 17px;
    color: var(--text-primary);
    line-height: 1.5;
    margin-bottom: 10px;
    font-weight: 600;
}
.related-card-body p {
    font-size: 14px;
    color: var(--text-muted);
    line-height: 1.7;
    flex: 1;
}
.related-card-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: 18px;
}
.related-card-meta time { font-size: 12px; color: var(--text-muted); font-family: var(--font-num); }
.related-link {
    color: var(--brand-green);
    font-size: 13px;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 4px;
    transition: gap .25s;
}
.related-link:hover { gap: 8px; color: var(--brand-green); }

/* ===== CTA 区块 ===== */
.cta-section {
    position: relative;
    padding: 96px 0;
    text-align: center;
    background:
        radial-gradient(ellipse at center, rgba(59,130,246,0.16) 0%, transparent 65%),
        var(--bg-tertiary);
    overflow: hidden;
}
.cta-section::before {
    content: '';
    position: absolute;
    inset: 0;
    background:
        repeating-linear-gradient(135deg, rgba(255,255,255,0.02) 0px, rgba(255,255,255,0.02) 1px, transparent 1px, transparent 12px);
    pointer-events: none;
}
.cta-section .container { position: relative; z-index: 1; }
.cta-section h2 {
    font-size: 32px;
    color: var(--text-primary);
    margin-bottom: 16px;
    font-weight: 700;
    letter-spacing: -0.3px;
}
.cta-section p {
    color: var(--text-secondary);
    max-width: 520px;
    margin: 0 auto 36px;
    font-size: 16px;
    line-height: 1.8;
}
.cta-btns { display: flex; justify-content: center; gap: 16px; flex-wrap: wrap; }

/* ===== 页脚 ===== */
.site-footer {
    background: #080E18;
    padding: 70px 0 0;
    position: relative;
}
.site-footer::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(0,229,160,0.5), transparent);
}
.footer-top {
    display: grid;
    grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
    gap: 40px;
    padding-bottom: 50px;
}
.footer-brand .logo { font-size: 19px; }
.footer-brand p {
    color: var(--text-muted);
    font-size: 14px;
    line-height: 1.8;
    margin: 16px 0 20px;
    max-width: 340px;
}
.footer-social { display: flex; gap: 10px; }
.footer-social a {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: rgba(255,255,255,0.05);
    border: 1px solid rgba(255,255,255,0.08);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    text-decoration: none;
    transition: all .25s;
    font-size: 14px;
}
.footer-social a:hover {
    color: var(--brand-green);
    border-color: rgba(0,229,160,0.4);
    transform: translateY(-2px);
}
.footer-col h4 {
    color: var(--text-primary);
    font-size: 15px;
    margin-bottom: 20px;
    font-weight: 600;
}
.footer-col ul li { margin-bottom: 12px; }
.footer-col ul a {
    color: var(--text-muted);
    font-size: 14px;
    text-decoration: none;
    transition: all .25s;
}
.footer-col ul a:hover { color: #fff; padding-left: 6px; }
.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.06);
    padding: 24px 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 12px;
    font-size: 13px;
    color: var(--text-muted);
}
.footer-links { display: flex; gap: 20px; flex-wrap: wrap; }
.footer-links a { color: var(--text-muted); text-decoration: none; transition: color .25s; font-size: 13px; }
.footer-links a:hover { color: var(--text-primary); }

/* ===== 返回顶部 ===== */
.back-top {
    position: fixed;
    right: 24px;
    bottom: 24px;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: rgba(16,28,48,0.85);
    border: 1px solid rgba(255,255,255,0.15);
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transform: translateY(12px);
    transition: all .3s ease;
    z-index: 90;
    backdrop-filter: blur(10px);
}
.back-top.show { opacity: 1; visibility: visible; transform: translateY(0); }
.back-top:hover { color: var(--brand-green); border-color: rgba(0,229,160,0.4); box-shadow: 0 0 14px rgba(0,229,160,0.2); }

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
    .search-trigger { display: none; }
    .footer-top { grid-template-columns: 1fr 1fr; }
    .article-body { padding: 40px 36px; }
    .article-head h1 { font-size: 34px; }
}

@media (max-width: 768px) {
    .header-inner { height: 64px; }
    .nav-center {
        position: fixed;
        top: 64px;
        left: 0; right: 0;
        background: rgba(11,18,32,0.98);
        backdrop-filter: blur(18px);
        -webkit-backdrop-filter: blur(18px);
        flex-direction: column;
        align-items: stretch;
        padding: 16px 20px 20px;
        gap: 4px;
        border-bottom: 1px solid rgba(255,255,255,0.08);
        transform: translateY(-130%);
        opacity: 0;
        pointer-events: none;
        transition: transform .3s ease, opacity .3s ease;
        z-index: 99;
        box-shadow: 0 24px 60px rgba(0,0,0,0.5);
    }
    .nav-center.open {
        transform: translateY(0);
        opacity: 1;
        pointer-events: auto;
    }
    .nav-center .nav-link {
        width: 100%;
        padding: 13px 16px;
        font-size: 15px;
    }
    .nav-center .nav-link.active::after { display: none; }
    .nav-center .nav-link.active { background: rgba(0,229,160,0.1); }
    .nav-toggle { display: inline-flex; }
    .header-actions .header-icon { display: none; }
    .header-actions .btn-sm { padding: 8px 14px; font-size: 13px; }
    .page-hero { padding: 44px 0 90px; }
    .article-head h1 { font-size: 28px; }
    .article-body {
        padding: 28px 20px;
        margin: -36px auto 0;
        border-radius: 18px;
    }
    .article-body p { font-size: 15px; }
    .article-body h2 { font-size: 20px; }
    .article-lower { flex-direction: column; align-items: flex-start; }
    .cta-section { padding: 64px 0; }
    .cta-section h2 { font-size: 24px; }
    .cta-btns .btn { width: 100%; }
    .related-section { padding: 60px 0; }
    .section-head h2 { font-size: 24px; }
    .footer-top { grid-template-columns: 1fr; gap: 32px; }
    .footer-bottom { flex-direction: column; text-align: center; }
    .footer-links { justify-content: center; }
    .back-top { right: 16px; bottom: 16px; }
    .cmd-modal { padding-top: 8vh; }
}

@media (max-width: 520px) {
    .container { padding: 0 16px; }
    .logo { font-size: 17px; }
    .logo-icon { width: 32px; height: 32px; font-size: 14px; }
    .header-actions .btn-sm { display: none; }
    .article-head h1 { font-size: 24px; }
    .article-body { padding: 24px 16px; }
    .article-body p { font-size: 15px; line-height: 1.85; }
    .cta-section h2 { font-size: 21px; }
    .section-head { flex-direction: column; align-items: flex-start; gap: 12px; }
    .breadcrumb { font-size: 12px; }
    .footer-top { grid-template-columns: 1fr; }
}

/* ===== 焦点控制 ===== */
a:focus-visible,
button:focus-visible,
input:focus-visible {
    outline: 2px solid var(--brand-green);
    outline-offset: 2px;
}

/* roulang page: category2 */
:root {
  --bg-primary: #0B1220;
  --bg-secondary: #0F1929;
  --bg-tertiary: #101C30;
  --glass-bg: rgba(255,255,255,0.05);
  --glass-border: rgba(255,255,255,0.10);
  --brand-blue: #3B82F6;
  --brand-green: #00E5A0;
  --cta-orange: #FF9F29;
  --cta-red: #FF6B3D;
  --accent-rose: #F43F5E;
  --text-primary: #E8EEF7;
  --text-secondary: #94A3B8;
  --text-muted: #64748B;
  --radius-card: 16px;
  --radius-btn: 10px;
  --shadow-card: 0 12px 40px rgba(0,0,0,0.4);
  --glow-green: 0 0 16px rgba(0,229,160,0.5);
  --glow-orange: 0 4px 24px rgba(255,159,41,0.35);
  --transition: all 0.3s ease;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; transition: var(--transition); }
a:hover { color: var(--brand-blue); }
button { font-family: inherit; border: none; cursor: pointer; background: none; color: inherit; }
input { font-family: inherit; }
ul { list-style: none; }

.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.section { padding: 90px 0; }
.section-alt { background: var(--bg-secondary); }
.section-head { max-width: 680px; margin-bottom: 48px; }
.section-head h2 { font-size: 32px; font-weight: 700; letter-spacing: -0.5px; line-height: 1.3; margin-bottom: 12px; }
.section-head p { color: var(--text-secondary); font-size: 15px; }
.section-head.center { text-align: center; margin-left: auto; margin-right: auto; }

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(11,18,32,0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(255,255,255,0.07);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  gap: 24px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.logo-icon {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--cta-orange), var(--cta-red));
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 16px;
  box-shadow: 0 0 16px rgba(255,159,41,0.35);
}
.logo-text { font-size: 20px; font-weight: 700; color: var(--text-primary); letter-spacing: 0.5px; }
.logo-text span { color: var(--brand-green); }

.nav-center { display: flex; align-items: center; gap: 28px; }
.nav-link {
  position: relative;
  font-size: 15px;
  color: var(--text-secondary);
  padding: 6px 2px;
  font-weight: 500;
}
.nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 0;
  height: 2px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--brand-blue), var(--brand-green));
  transition: width 0.3s ease;
}
.nav-link:hover { color: var(--text-primary); }
.nav-link:hover::after, .nav-link.active::after { width: 100%; }
.nav-link.active { color: var(--text-primary); }

.header-actions { display: flex; align-items: center; gap: 12px; }
.search-trigger {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.10);
  border-radius: 10px;
  color: var(--text-muted);
  font-size: 13px;
  cursor: pointer;
  min-width: 220px;
  transition: var(--transition);
}
.search-trigger:hover { border-color: rgba(59,130,246,0.4); background: rgba(255,255,255,0.08); }
.search-trigger kbd {
  font-size: 11px;
  padding: 2px 6px;
  background: rgba(255,255,255,0.08);
  border-radius: 4px;
  font-family: inherit;
  color: var(--text-secondary);
  margin-left: auto;
}
.header-icon {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: rgba(255,255,255,0.05);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  font-size: 14px;
}
.header-icon:hover { background: rgba(255,255,255,0.10); color: var(--brand-green); }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: var(--radius-btn);
  font-size: 15px;
  font-weight: 600;
  transition: var(--transition);
  letter-spacing: 0.3px;
}
.btn-primary {
  background: linear-gradient(135deg, var(--cta-orange), var(--cta-red));
  color: #fff;
  box-shadow: var(--glow-orange);
}
.btn-primary:hover { box-shadow: 0 6px 32px rgba(255,159,41,0.55); transform: translateY(-2px); color: #fff; }
.btn-primary:active { transform: translateY(1px); box-shadow: 0 2px 16px rgba(255,159,41,0.3); }
.btn-outline {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.15);
  color: var(--text-primary);
}
.btn-outline:hover { background: rgba(255,255,255,0.12); border-color: rgba(59,130,246,0.5); color: #fff; }
.btn-lg { padding: 16px 38px; font-size: 16px; }
.btn-sm { padding: 10px 20px; font-size: 14px; }

.hamburger { display: none; flex-direction: column; gap: 5px; padding: 8px; }
.hamburger span { width: 22px; height: 2px; background: var(--text-primary); border-radius: 2px; transition: var(--transition); }
.hamburger.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.hamburger.active span:nth-child(2) { opacity: 0; }
.hamburger.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* Mobile Menu */
.mobile-menu {
  display: none;
  flex-direction: column;
  padding: 12px 24px 20px;
  background: var(--bg-secondary);
  border-bottom: 1px solid rgba(255,255,255,0.07);
  gap: 4px;
}
.mobile-menu.active { display: flex; }
.mobile-menu .nav-link { padding: 12px 0; font-size: 16px; border-bottom: 1px solid rgba(255,255,255,0.04); }

/* Command Panel */
.cmd-panel-overlay {
  position: fixed;
  inset: 0;
  z-index: 200;
  background: rgba(11,18,32,0.72);
  backdrop-filter: blur(8px);
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding-top: 12vh;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
}
.cmd-panel-overlay.active { opacity: 1; visibility: visible; }
.cmd-panel {
  width: min(640px, 92vw);
  background: var(--bg-tertiary);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 18px;
  box-shadow: 0 24px 80px rgba(0,0,0,0.55);
  overflow: hidden;
  transform: translateY(12px);
  transition: var(--transition);
}
.cmd-panel-overlay.active .cmd-panel { transform: translateY(0); }
.cmd-search {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 18px 20px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.cmd-search input {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  color: var(--text-primary);
  font-size: 16px;
}
.cmd-search kbd { font-size: 12px; padding: 3px 8px; background: rgba(255,255,255,0.08); border-radius: 6px; color: var(--text-secondary); }
.cmd-group { padding: 16px 20px; }
.cmd-group h4 { font-size: 12px; color: var(--text-muted); text-transform: uppercase; letter-spacing: 1px; margin-bottom: 10px; font-weight: 600; }
.cmd-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 12px;
  border-radius: 10px;
  color: var(--text-secondary);
  font-size: 14px;
  transition: var(--transition);
}
.cmd-item:hover { background: rgba(0,229,160,0.12); color: var(--text-primary); }
.cmd-item i:first-child { width: 20px; color: var(--brand-green); }
.cmd-item i:last-child { margin-left: auto; font-size: 12px; }

/* Breadcrumb */
.breadcrumb { display: flex; align-items: center; gap: 8px; font-size: 13px; color: var(--text-muted); margin-bottom: 16px; flex-wrap: wrap; }
.breadcrumb a { color: var(--text-secondary); }
.breadcrumb a:hover { color: var(--brand-green); }
.breadcrumb .current { color: var(--text-primary); }

/* Hero */
.page-hero {
  position: relative;
  min-height: 48vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  overflow: hidden;
  padding: 80px 0;
}
.page-hero-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  z-index: 0;
}
.page-hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(11,18,32,0.55) 0%, rgba(11,18,32,0.92) 100%);
  z-index: 1;
}
.page-hero-content {
  position: relative;
  z-index: 2;
  max-width: 860px;
}
.page-hero-content h1 {
  font-size: 44px;
  font-weight: 700;
  letter-spacing: -0.5px;
  line-height: 1.25;
  margin-bottom: 16px;
}
.page-hero-content p {
  color: var(--text-secondary);
  font-size: 17px;
  max-width: 580px;
  margin: 0 auto 24px;
}
.hero-badge {
  display: inline-block;
  padding: 6px 18px;
  background: rgba(0,229,160,0.12);
  border: 1px solid rgba(0,229,160,0.3);
  border-radius: 999px;
  color: var(--brand-green);
  font-size: 13px;
  font-weight: 500;
  margin-bottom: 20px;
  letter-spacing: 0.5px;
}

/* Stat Band */
.stat-band {
  padding: 44px 0;
  background: var(--bg-secondary);
  border-top: 1px solid rgba(255,255,255,0.04);
  border-bottom: 1px solid rgba(255,255,255,0.04);
}
.stat-item { text-align: center; padding: 16px 8px; }
.stat-num {
  font-size: 36px;
  font-weight: 700;
  background: linear-gradient(135deg, var(--brand-green), var(--brand-blue));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  line-height: 1.2;
  font-family: Inter, "DIN Alternate", "Roboto", sans-serif;
}
.stat-label { font-size: 14px; color: var(--text-secondary); margin-top: 6px; }

/* Cards */
.glass-card {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius-card);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  padding: 32px;
  position: relative;
  overflow: hidden;
  transition: var(--transition);
  height: 100%;
}
.glass-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, transparent, rgba(0,229,160,0.4), transparent);
  opacity: 0;
  transition: var(--transition);
}
.glass-card:hover { transform: translateY(-4px); border-color: rgba(0,229,160,0.35); box-shadow: var(--shadow-card); }
.glass-card:hover::before { opacity: 1; }
.glass-card h3 { font-size: 20px; font-weight: 600; margin-bottom: 10px; color: var(--text-primary); }
.glass-card p { color: var(--text-secondary); font-size: 15px; line-height: 1.75; }
.glass-card .card-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: rgba(59,130,246,0.12);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  color: var(--brand-blue);
  margin-bottom: 18px;
  transition: var(--transition);
}
.glass-card:hover .card-icon { background: rgba(0,229,160,0.15); color: var(--brand-green); }

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--brand-blue);
  font-size: 14px;
  font-weight: 500;
  margin-top: 14px;
}
.text-link:hover { color: var(--brand-green); gap: 10px; }

/* Category Feature Grid */
.category-feature .feature-card { padding: 40px; }
.category-card-wrap .glass-card { padding: 26px; }
.category-card-wrap .glass-card h3 { font-size: 17px; }
.category-card-wrap .glass-card p { font-size: 14px; line-height: 1.7; }
.category-card-wrap .card-icon { width: 42px; height: 42px; font-size: 17px; margin-bottom: 14px; }

/* Media Card - 热点推荐 */
.media-card { padding: 0; display: flex; flex-direction: column; }
.media-card img { height: 230px; width: 100%; object-fit: cover; border-radius: var(--radius-card) var(--radius-card) 0 0; }
.media-card-body { padding: 28px; }
.media-card-body h3 { font-size: 22px; font-weight: 600; margin: 12px 0 10px; color: var(--text-primary); line-height: 1.4; }
.card-meta { display: flex; gap: 18px; font-size: 13px; color: var(--text-muted); margin-bottom: 16px; }
.card-meta i { margin-right: 4px; color: var(--brand-green); }

.feature-right-card { display: flex; flex-direction: column; justify-content: center; }
.feature-right-card::after {
  content: "";
  position: absolute;
  right: -40px;
  bottom: -40px;
  width: 160px;
  height: 160px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255,159,41,0.18), transparent 70%);
  pointer-events: none;
}
.feature-right-card h3 { font-size: 24px; line-height: 1.4; margin: 14px 0 12px; }
.feature-right-card p { margin-bottom: 18px; }

/* Tags */
.tag-list { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 20px; }
.tag {
  display: inline-block;
  padding: 4px 12px;
  background: rgba(255,159,41,0.12);
  border: 1px solid rgba(255,159,41,0.25);
  border-radius: 999px;
  color: var(--cta-orange);
  font-size: 12px;
  font-weight: 500;
  transition: var(--transition);
}
.tag:hover { background: rgba(255,159,41,0.22); }

.badge {
  display: inline-block;
  padding: 5px 14px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.5px;
}
.badge-green { background: rgba(0,229,160,0.12); color: var(--brand-green); border: 1px solid rgba(0,229,160,0.3); }
.badge-orange { background: rgba(255,159,41,0.15); color: var(--cta-orange); border: 1px solid rgba(255,159,41,0.3); }

/* News Rows */
.news-row {
  display: flex;
  gap: 18px;
  padding: 24px;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: 14px;
  margin-bottom: 16px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}
.news-row::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 3px;
  height: 100%;
  background: linear-gradient(180deg, var(--brand-blue), var(--brand-green));
  opacity: 0;
  transition: var(--transition);
}
.news-row:hover { background: rgba(255,255,255,0.07); border-color: rgba(255,255,255,0.12); transform: translateX(4px); }
.news-row:hover::before { opacity: 1; }
.news-row:hover .news-row-content .text-link { gap: 10px; }

.date-badge {
  flex-shrink: 0;
  width: 60px;
  height: 68px;
  border-radius: 12px;
  background: linear-gradient(135deg, rgba(59,130,246,0.15), rgba(0,229,160,0.10));
  border: 1px solid rgba(255,255,255,0.10);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: var(--brand-green);
}
.date-badge .day { font-size: 22px; font-weight: 700; line-height: 1.1; font-family: Inter, sans-serif; }
.date-badge .month { font-size: 12px; color: var(--text-secondary); margin-top: 2px; }

.news-row-content h3 { font-size: 17px; font-weight: 600; margin-bottom: 6px; line-height: 1.4; }
.news-row-content p { font-size: 14px; color: var(--text-secondary); margin-bottom: 8px; line-height: 1.6; }
.news-row-content .text-link { margin-top: 4px; font-size: 13px; }

/* Subscribe */
.subscribe-section {
  padding: 70px 0;
  background: var(--bg-secondary);
  border-top: 1px solid rgba(255,255,255,0.05);
  border-bottom: 1px solid rgba(255,255,255,0.05);
}
.subscribe-inner {
  max-width: 760px;
  margin: 0 auto;
  text-align: center;
}
.subscribe-inner h2 { font-size: 28px; margin-bottom: 10px; }
.subscribe-inner p { color: var(--text-secondary); font-size: 15px; margin-bottom: 28px; }
.subscribe-form {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}
.subscribe-form input[type="email"] {
  flex: 1;
  min-width: 260px;
  max-width: 420px;
  padding: 13px 18px;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: var(--radius-btn);
  color: var(--text-primary);
  font-size: 15px;
  outline: none;
  transition: var(--transition);
}
.subscribe-form input[type="email"]:focus {
  border-color: var(--brand-blue);
  box-shadow: 0 0 0 3px rgba(59,130,246,0.2);
  background: rgba(255,255,255,0.06);
}
.subscribe-form input[type="email"]::placeholder { color: var(--text-muted); }

/* FAQ */
.accordion-list { max-width: 820px; margin: 0 auto; display: flex; flex-direction: column; gap: 12px; }
.accordion-item {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 14px;
  overflow: hidden;
  transition: var(--transition);
  position: relative;
}
.accordion-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 3px;
  height: 100%;
  background: var(--brand-green);
  opacity: 0;
  transition: var(--transition);
}
.accordion-item.open { background: rgba(255,255,255,0.07); border-color: rgba(0,229,160,0.3); }
.accordion-item.open::before { opacity: 1; }
.accordion-item.open .accordion-header { color: var(--brand-green); }
.accordion-item.open .accordion-header i { transform: rotate(45deg); }
.accordion-header {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-primary);
  text-align: left;
  transition: var(--transition);
}
.accordion-header i { color: var(--text-muted); transition: var(--transition); font-size: 14px; }
.accordion-body { max-height: 0; overflow: hidden; transition: max-height 0.4s ease; }
.accordion-item.open .accordion-body { max-height: 280px; }
.accordion-body p { padding: 0 24px 22px; color: var(--text-secondary); font-size: 14px; line-height: 1.8; }

/* CTA */
.cta-section {
  position: relative;
  padding: 100px 0;
  background-size: cover;
  background-position: center;
  text-align: center;
  overflow: hidden;
}
.cta-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(11,18,32,0.82), rgba(11,18,32,0.95));
}
.cta-content { position: relative; z-index: 2; }
.cta-content h2 { font-size: 36px; font-weight: 700; margin-bottom: 14px; }
.cta-content p { color: var(--text-secondary); font-size: 16px; margin-bottom: 30px; max-width: 520px; margin-left: auto; margin-right: auto; }

/* Footer */
.site-footer {
  background: #080E18;
  padding-top: 70px;
  border-top: 1px solid rgba(0,229,160,0.25);
  position: relative;
}
.site-footer::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 50%;
  transform: translateX(-50%);
  width: 400px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--brand-green), transparent);
}
.footer-top {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: 40px;
  padding-bottom: 50px;
}
.footer-brand .logo { margin-bottom: 16px; }
.footer-brand p { font-size: 14px; color: var(--text-muted); line-height: 1.8; margin-bottom: 20px; max-width: 300px; }
.footer-social { display: flex; gap: 10px; }
.footer-social a {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  font-size: 14px;
  transition: var(--transition);
}
.footer-social a:hover { background: rgba(0,229,160,0.12); border-color: rgba(0,229,160,0.3); color: var(--brand-green); }
.footer-col h4 { font-size: 14px; font-weight: 600; color: var(--text-primary); margin-bottom: 18px; }
.footer-col ul { display: flex; flex-direction: column; gap: 10px; }
.footer-col ul a { font-size: 14px; color: var(--text-secondary); }
.footer-col ul a:hover { color: #fff; padding-left: 4px; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.06);
  padding: 24px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  font-size: 13px;
  color: var(--text-muted);
}
.footer-links { display: flex; gap: 20px; flex-wrap: wrap; }
.footer-links a { color: var(--text-secondary); font-size: 13px; }
.footer-links a:hover { color: var(--brand-green); }

/* Responsive */
@media (max-width: 1024px) {
  .nav-center { gap: 20px; }
  .search-trigger { min-width: 180px; }
  .footer-top { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .section { padding: 56px 0; }
  .section-head h2 { font-size: 24px; }
  .nav-center { display: none; }
  .search-trigger { display: none; }
  .header-icon { display: none; }
  .hamburger { display: flex; }
  .header-inner { height: 64px; }
  .logo-text { font-size: 18px; }
  .page-hero-content h1 { font-size: 28px; }
  .page-hero-content p { font-size: 15px; }
  .footer-top { grid-template-columns: 1fr; gap: 32px; padding-bottom: 36px; }
  .cta-content h2 { font-size: 26px; }
  .subscribe-form { flex-direction: column; align-items: center; }
  .subscribe-form input[type="email"] { width: 100%; max-width: 100%; }
  .footer-bottom { flex-direction: column; justify-content: center; text-align: center; }
  .footer-links { justify-content: center; gap: 14px; }
}

@media (max-width: 520px) {
  .container { padding: 0 16px; }
  .page-hero { min-height: 56vh; padding: 60px 0; }
  .page-hero-content h1 { font-size: 24px; }
  .stat-num { font-size: 28px; }
  .news-row { flex-direction: column; gap: 12px; padding: 20px; }
  .date-badge { width: 56px; height: 56px; }
  .date-badge .day { font-size: 18px; }
  .glass-card { padding: 24px; }
  .media-card img { height: 180px; }
  .media-card-body h3 { font-size: 18px; }
  .feature-right-card h3 { font-size: 20px; }
  .btn-lg { padding: 14px 28px; }
}