/* ============================================
   今日看料 - Design System
   Aesthetic: Digital Editorial Magazine × Modern Newsroom
   ============================================ */

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

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

body {
    font-family: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.7;
    overflow-x: hidden;
    min-height: 100vh;
}

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

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

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

ul, ol {
    list-style: none;
}

button {
    cursor: pointer;
    border: none;
    outline: none;
    font-family: inherit;
    transition: all 0.3s ease;
}

input {
    font-family: inherit;
    outline: none;
}

/* --- Design System Variables --- */
:root {
    /* Core Colors */
    --primary: #FF4D4D;
    --primary-light: #FF6B6B;
    --primary-dark: #E63946;
    --secondary: #FF8C42;
    --accent-gold: #FFD93D;
    --accent-teal: #4ECDC4;
    --accent-pink: #FFE5EC;
    --accent-purple: #A78BFA;

    /* Dark Theme */
    --dark: #0D0D1A;
    --dark-light: #1A1A2E;
    --dark-card: #252542;
    --dark-border: #33335C;

    /* Light Theme */
    --bg: #FAFAFA;
    --bg-alt: #F4F4F6;
    --card: #FFFFFF;
    --text: #1A1A2E;
    --text-light: #6B7280;
    --text-white: #FFFFFF;
    --border: #E5E5E5;
    --border-light: #F0F0F0;

    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #FF4D4D 0%, #FF8C42 100%);
    --gradient-dark: linear-gradient(135deg, #0D0D1A 0%, #1A1A2E 50%, #252542 100%);
    --gradient-gold: linear-gradient(135deg, #FFD93D 0%, #FF8C42 100%);
    --gradient-teal: linear-gradient(135deg, #4ECDC4 0%, #44A08D 100%);
    --gradient-hero: linear-gradient(135deg, #0D0D1A 0%, #1A1A2E 40%, #FF4D4D20 100%);
    --gradient-glass: linear-gradient(135deg, rgba(255,255,255,0.15) 0%, rgba(255,255,255,0.05) 100%);

    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
    --shadow: 0 4px 20px rgba(0,0,0,0.08);
    --shadow-md: 0 8px 30px rgba(0,0,0,0.1);
    --shadow-lg: 0 12px 40px rgba(0,0,0,0.12);
    --shadow-xl: 0 20px 60px rgba(0,0,0,0.15);
    --shadow-glow: 0 0 40px rgba(255,77,77,0.25);
    --shadow-gold: 0 4px 20px rgba(255,217,61,0.3);

    /* Spacing */
    --space-xs: 8px;
    --space-sm: 12px;
    --space-md: 20px;
    --space-lg: 32px;
    --space-xl: 48px;
    --space-2xl: 64px;
    --space-3xl: 96px;

    /* Border Radius */
    --radius-sm: 8px;
    --radius: 12px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --radius-xl: 32px;
    --radius-full: 9999px;

    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition: 0.3s ease;
    --transition-slow: 0.5s ease;

    /* Typography */
    --font-display: 'ZCOOL KuaiLe', cursive;
    --font-heading: 'Noto Serif SC', 'Source Han Serif SC', serif;
    --font-body: 'Noto Sans SC', 'PingFang SC', sans-serif;

    /* Layout */
    --container: 1280px;
    --container-sm: 768px;
    --nav-height: 72px;
}

/* --- Typography Classes --- */
.font-display { font-family: var(--font-display); }
.font-heading { font-family: var(--font-heading); }

.text-primary { color: var(--primary) !important; }
.text-gold { color: var(--accent-gold) !important; }
.text-teal { color: var(--accent-teal) !important; }
.text-dark { color: var(--dark) !important; }
.text-light { color: var(--text-light) !important; }
.text-white { color: var(--text-white) !important; }

.gradient-text {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.gradient-text-gold {
    background: var(--gradient-gold);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* --- Container --- */
.container {
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 var(--space-md);
}

.container-sm {
    max-width: var(--container-sm);
    margin: 0 auto;
    padding: 0 var(--space-md);
}

/* --- Section Spacing --- */
.section {
    padding: var(--space-3xl) 0;
}

.section-sm {
    padding: var(--space-2xl) 0;
}

.section-dark {
    background: var(--dark);
    color: var(--text-white);
}

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

/* ============================================
   NAVIGATION
   ============================================ */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--nav-height);
    z-index: 1000;
    background: rgba(255,255,255,0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(0,0,0,0.06);
    transition: all var(--transition);
}

.nav.scrolled {
    background: rgba(13,13,26,0.92);
    backdrop-filter: blur(20px);
    border-bottom-color: rgba(255,255,255,0.1);
    box-shadow: var(--shadow-md);
}

.nav.scrolled .nav-logo,
.nav.scrolled .nav-links a,
.nav.scrolled .nav-cta {
    color: var(--text-white);
}

.nav.scrolled .nav-links a:hover {
    color: var(--accent-gold);
}

.nav-inner {
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 var(--space-md);
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-family: var(--font-display);
    font-size: 1.5rem;
    color: var(--dark);
    transition: color var(--transition);
    z-index: 1001;
}

.nav-logo-icon {
    width: 40px;
    height: 40px;
    background: var(--gradient-primary);
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    color: white;
    box-shadow: var(--shadow-glow);
    transition: transform var(--transition);
}

.nav-logo:hover .nav-logo-icon {
    transform: rotate(-5deg) scale(1.05);
}

.nav-links {
    display: flex;
    gap: var(--space-lg);
    align-items: center;
}

.nav-links a {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--dark);
    position: relative;
    padding: var(--space-xs) 0;
    transition: color var(--transition);
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    border-radius: 2px;
    transition: width var(--transition);
}

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

.nav-links a.active {
    color: var(--primary);
}

.nav-cta {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    padding: var(--space-xs) var(--space-md);
    background: var(--gradient-primary);
    color: white;
    border-radius: var(--radius-full);
    font-size: 0.85rem;
    font-weight: 600;
    box-shadow: var(--shadow-glow);
    transition: all var(--transition);
}

.nav-cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 50px rgba(255,77,77,0.4);
    color: white;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    z-index: 1001;
    background: none;
    padding: var(--space-xs);
}

.nav-toggle span {
    width: 24px;
    height: 2px;
    background: var(--dark);
    border-radius: 2px;
    transition: all var(--transition);
}

.nav.scrolled .nav-toggle span {
    background: white;
}

/* ============================================
   BUTTONS
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: var(--space-md) var(--space-xl);
    border-radius: var(--radius-full);
    font-size: 1rem;
    font-weight: 600;
    transition: all var(--transition);
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(255,255,255,0.2);
    opacity: 0;
    transition: opacity var(--transition);
}

.btn:hover::before {
    opacity: 1;
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: var(--shadow-glow);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 0 50px rgba(255,77,77,0.4);
    color: white;
}

.btn-gold {
    background: var(--gradient-gold);
    color: var(--dark);
    box-shadow: var(--shadow-gold);
}

.btn-gold:hover {
    transform: translateY(-3px);
    box-shadow: 0 0 50px rgba(255,217,61,0.4);
    color: var(--dark);
}

.btn-dark {
    background: var(--dark);
    color: white;
}

.btn-dark:hover {
    background: var(--dark-light);
    transform: translateY(-3px);
    color: white;
}

.btn-outline {
    background: transparent;
    border: 2px solid var(--dark);
    color: var(--dark);
}

.btn-outline:hover {
    background: var(--dark);
    color: white;
    transform: translateY(-3px);
}

.btn-outline-light {
    background: transparent;
    border: 2px solid rgba(255,255,255,0.3);
    color: white;
}

.btn-outline-light:hover {
    background: rgba(255,255,255,0.1);
    border-color: var(--accent-gold);
    color: var(--accent-gold);
    transform: translateY(-3px);
}

.btn-lg {
    padding: var(--space-md) var(--space-2xl);
    font-size: 1.1rem;
}

.btn-sm {
    padding: var(--space-xs) var(--space-md);
    font-size: 0.85rem;
}

/* ============================================
   HERO SECTION
   ============================================ */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: var(--gradient-dark);
    overflow: hidden;
    padding-top: var(--nav-height);
}

.hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: 
        radial-gradient(ellipse 80% 50% at 20% 40%, rgba(255,77,77,0.15) 0%, transparent 50%),
        radial-gradient(ellipse 60% 40% at 80% 60%, rgba(255,140,66,0.12) 0%, transparent 50%),
        radial-gradient(ellipse 40% 30% at 50% 80%, rgba(78,205,196,0.08) 0%, transparent 50%);
    z-index: 1;
}

.hero::after {
    content: '';
    position: absolute;
    inset: 0;
    background-image: 
        linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
    background-size: 60px 60px;
    z-index: 1;
}

.hero-grid-bg {
    position: absolute;
    inset: 0;
    z-index: 1;
    background-image: 
        radial-gradient(circle at 25% 25%, rgba(255,77,77,0.08) 0%, transparent 40%),
        radial-gradient(circle at 75% 75%, rgba(78,205,196,0.06) 0%, transparent 40%);
}

.hero-inner {
    position: relative;
    z-index: 2;
    max-width: var(--container);
    margin: 0 auto;
    padding: var(--space-xl) var(--space-md);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-2xl);
    align-items: center;
}

.hero-content {
    max-width: 600px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    padding: var(--space-xs) var(--space-md);
    background: rgba(255,77,77,0.15);
    border: 1px solid rgba(255,77,77,0.3);
    border-radius: var(--radius-full);
    color: var(--accent-gold);
    font-size: 0.85rem;
    font-weight: 500;
    margin-bottom: var(--space-md);
    backdrop-filter: blur(10px);
}

.hero-badge-dot {
    width: 8px;
    height: 8px;
    background: var(--accent-gold);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

.hero-title {
    font-family: var(--font-heading);
    font-size: 3.5rem;
    font-weight: 900;
    line-height: 1.2;
    margin-bottom: var(--space-md);
    color: white;
}

.hero-title .gradient-text {
    font-size: inherit;
}

.hero-subtitle {
    font-size: 1.2rem;
    color: rgba(255,255,255,0.7);
    margin-bottom: var(--space-xl);
    line-height: 1.8;
}

.hero-actions {
    display: flex;
    gap: var(--space-md);
    flex-wrap: wrap;
}

.hero-stats {
    display: flex;
    gap: var(--space-xl);
    margin-top: var(--space-2xl);
    padding-top: var(--space-xl);
    border-top: 1px solid rgba(255,255,255,0.1);
}

.hero-stat {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
}

.hero-stat-number {
    font-family: var(--font-heading);
    font-size: 2rem;
    font-weight: 900;
    color: var(--accent-gold);
}

.hero-stat-label {
    font-size: 0.85rem;
    color: rgba(255,255,255,0.5);
}

/* Hero Visual - Staggered Card Stack */
.hero-visual {
    position: relative;
    height: 500px;
}

.hero-card {
    position: absolute;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
    transition: transform var(--transition-slow);
}

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

.hero-card-1 {
    width: 280px;
    height: 350px;
    top: 50px;
    right: 100px;
    background: linear-gradient(135deg, #FF4D4D, #FF8C42);
    z-index: 3;
    animation: float 6s ease-in-out infinite;
}

.hero-card-2 {
    width: 220px;
    height: 280px;
    top: 0;
    right: 0;
    background: linear-gradient(135deg, #4ECDC4, #44A08D);
    z-index: 2;
    animation: float 6s ease-in-out infinite 1s;
}

.hero-card-3 {
    width: 200px;
    height: 250px;
    bottom: 50px;
    right: 150px;
    background: linear-gradient(135deg, #FFD93D, #FF8C42);
    z-index: 1;
    animation: float 6s ease-in-out infinite 2s;
}

.hero-card-content {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: var(--space-lg);
    color: white;
}

.hero-card-tag {
    display: inline-block;
    padding: 4px 12px;
    background: rgba(255,255,255,0.25);
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 500;
    margin-bottom: var(--space-sm);
    backdrop-filter: blur(10px);
}

.hero-card-title {
    font-family: var(--font-heading);
    font-size: 1.1rem;
    font-weight: 700;
    line-height: 1.4;
}

/* ============================================
   MARQUEE / TICKER
   ============================================ */
.ticker {
    background: var(--dark);
    color: white;
    padding: var(--space-sm) 0;
    overflow: hidden;
    position: relative;
    border-top: 1px solid rgba(255,255,255,0.08);
    border-bottom: 1px solid rgba(255,255,255,0.08);
}

.ticker-inner {
    display: flex;
    gap: var(--space-xl);
    animation: scroll-left 30s linear infinite;
    white-space: nowrap;
    padding-left: 100%;
}

.ticker-item {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: 0.9rem;
    font-weight: 500;
}

.ticker-item .tag {
    padding: 2px 10px;
    background: var(--gradient-primary);
    border-radius: var(--radius-full);
    font-size: 0.7rem;
    font-weight: 600;
}

.ticker-item .tag.hot {
    background: var(--gradient-gold);
    color: var(--dark);
}

/* ============================================
   CATEGORY GRID
   ============================================ */
.category-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-md);
}

.category-card {
    background: var(--card);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    text-align: center;
    border: 1px solid var(--border-light);
    transition: all var(--transition);
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.category-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--gradient-primary);
    opacity: 0;
    transition: opacity var(--transition);
    z-index: 0;
}

.category-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: transparent;
}

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

.category-card:hover .category-icon,
.category-card:hover .category-name,
.category-card:hover .category-count {
    color: white;
    transform: scale(1.1);
}

.category-icon {
    font-size: 2.5rem;
    margin-bottom: var(--space-md);
    display: block;
    transition: all var(--transition);
    position: relative;
    z-index: 1;
}

.category-name {
    font-family: var(--font-heading);
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: var(--space-xs);
    transition: color var(--transition);
    position: relative;
    z-index: 1;
}

.category-count {
    font-size: 0.85rem;
    color: var(--text-light);
    transition: color var(--transition);
    position: relative;
    z-index: 1;
}

/* ============================================
   SECTION HEADER
   ============================================ */
.section-header {
    text-align: center;
    margin-bottom: var(--space-2xl);
}

.section-header.left {
    text-align: left;
}

.section-tag {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    padding: 6px 16px;
    background: rgba(255,77,77,0.1);
    border-radius: var(--radius-full);
    color: var(--primary);
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: var(--space-md);
}

.section-title {
    font-family: var(--font-heading);
    font-size: 2.5rem;
    font-weight: 900;
    line-height: 1.3;
    margin-bottom: var(--space-md);
    color: var(--dark);
}

.section-title.light {
    color: white;
}

.section-desc {
    font-size: 1.05rem;
    color: var(--text-light);
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.8;
}

.section-desc.light {
    color: rgba(255,255,255,0.6);
}

/* ============================================
   VIDEO CARD GRID
   ============================================ */
.video-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-lg);
}

.video-card {
    background: var(--card);
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--border-light);
    transition: all var(--transition);
    cursor: pointer;
}

.video-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: transparent;
}

.video-thumbnail {
    position: relative;
    aspect-ratio: 16/9;
    overflow: hidden;
    background: var(--dark-card);
}

.video-thumbnail-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

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

.video-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(0,0,0,0.7) 0%, transparent 50%);
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: var(--space-md);
    color: white;
}

.video-badge {
    position: absolute;
    top: var(--space-sm);
    left: var(--space-sm);
    padding: 4px 12px;
    border-radius: var(--radius-full);
    font-size: 0.7rem;
    font-weight: 600;
    backdrop-filter: blur(10px);
}

.video-badge.hot {
    background: var(--gradient-primary);
}

.video-badge.new {
    background: var(--gradient-teal);
}

.video-badge.vip {
    background: var(--gradient-gold);
    color: var(--dark);
}

.video-duration {
    position: absolute;
    bottom: var(--space-sm);
    right: var(--space-sm);
    padding: 3px 8px;
    background: rgba(0,0,0,0.6);
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    color: white;
    backdrop-filter: blur(10px);
}

.video-play-btn {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0.9);
    width: 56px;
    height: 56px;
    background: rgba(255,255,255,0.9);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: all var(--transition);
    backdrop-filter: blur(10px);
}

.video-card:hover .video-play-btn {
    opacity: 1;
    transform: translate(-50%, -50%) scale(1);
}

.video-play-btn::after {
    content: '';
    width: 0;
    height: 0;
    border-left: 18px solid var(--primary);
    border-top: 11px solid transparent;
    border-bottom: 11px solid transparent;
    margin-left: 4px;
}

.video-info {
    padding: var(--space-md);
}

.video-category {
    font-size: 0.75rem;
    color: var(--primary);
    font-weight: 600;
    margin-bottom: var(--space-xs);
}

.video-title {
    font-family: var(--font-heading);
    font-size: 1rem;
    font-weight: 700;
    line-height: 1.5;
    margin-bottom: var(--space-sm);
    color: var(--dark);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.video-meta {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: 0.8rem;
    color: var(--text-light);
}

.video-meta-item {
    display: flex;
    align-items: center;
    gap: 4px;
}

/* ============================================
   FEATURED ARTICLE (Large Card)
   ============================================ */
.featured-article {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-2xl);
    align-items: center;
    background: var(--card);
    border-radius: var(--radius-xl);
    overflow: hidden;
    border: 1px solid var(--border-light);
    transition: all var(--transition);
}

.featured-article:hover {
    box-shadow: var(--shadow-lg);
}

.featured-image {
    aspect-ratio: 4/3;
    overflow: hidden;
    background: var(--gradient-primary);
    position: relative;
}

.featured-image-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 4rem;
    color: rgba(255,255,255,0.3);
}

.featured-content {
    padding: var(--space-2xl);
}

.featured-tag {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    padding: 6px 16px;
    background: var(--gradient-primary);
    border-radius: var(--radius-full);
    color: white;
    font-size: 0.8rem;
    font-weight: 600;
    margin-bottom: var(--space-md);
}

.featured-title {
    font-family: var(--font-heading);
    font-size: 2rem;
    font-weight: 900;
    line-height: 1.4;
    margin-bottom: var(--space-md);
    color: var(--dark);
}

.featured-excerpt {
    font-size: 1rem;
    color: var(--text-light);
    line-height: 1.8;
    margin-bottom: var(--space-lg);
}

.featured-meta {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    font-size: 0.85rem;
    color: var(--text-light);
    margin-bottom: var(--space-lg);
}

/* ============================================
   RANKING LIST
   ============================================ */
.ranking-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.ranking-item {
    display: grid;
    grid-template-columns: 60px 1fr auto;
    gap: var(--space-md);
    align-items: center;
    padding: var(--space-md);
    background: var(--card);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-light);
    transition: all var(--transition);
    cursor: pointer;
}

.ranking-item:hover {
    transform: translateX(8px);
    box-shadow: var(--shadow);
    border-color: var(--primary);
}

.ranking-number {
    font-family: var(--font-heading);
    font-size: 2rem;
    font-weight: 900;
    color: var(--text-light);
    text-align: center;
}

.ranking-number.top1 {
    color: var(--accent-gold);
    text-shadow: 0 0 20px rgba(255,217,61,0.5);
}

.ranking-number.top2 {
    color: #C0C0C0;
}

.ranking-number.top3 {
    color: #CD7F32;
}

.ranking-content {
    min-width: 0;
}

.ranking-title {
    font-family: var(--font-heading);
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: var(--space-xs);
    display: -webkit-box;
    -webkit-line-clamp: 1;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.ranking-meta {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: 0.8rem;
    color: var(--text-light);
}

.ranking-views {
    font-family: var(--font-heading);
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--primary);
    text-align: right;
}

.ranking-bar {
    width: 100%;
    height: 4px;
    background: var(--border-light);
    border-radius: 4px;
    margin-top: var(--space-sm);
    overflow: hidden;
}

.ranking-bar-fill {
    height: 100%;
    background: var(--gradient-primary);
    border-radius: 4px;
    width: 0;
    transition: width 1.2s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ============================================
   TOPIC CARDS
   ============================================ */
.topic-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-lg);
}

.topic-card {
    background: var(--card);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    border: 1px solid var(--border-light);
    transition: all var(--transition);
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

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

.topic-card::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition);
}

.topic-card:hover::after {
    transform: scaleX(1);
}

.topic-hashtag {
    display: inline-block;
    padding: 6px 14px;
    background: var(--accent-pink);
    border-radius: var(--radius-full);
    color: var(--primary);
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: var(--space-md);
}

.topic-title {
    font-family: var(--font-heading);
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: var(--space-sm);
    line-height: 1.5;
}

.topic-desc {
    font-size: 0.9rem;
    color: var(--text-light);
    line-height: 1.7;
    margin-bottom: var(--space-md);
}

.topic-stats {
    display: flex;
    gap: var(--space-md);
    font-size: 0.8rem;
    color: var(--text-light);
}

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

/* ============================================
   TAB FILTER
   ============================================ */
.tab-filter {
    display: flex;
    gap: var(--space-sm);
    margin-bottom: var(--space-2xl);
    flex-wrap: wrap;
    justify-content: center;
}

.tab-btn {
    padding: var(--space-sm) var(--space-lg);
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius-full);
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-light);
    transition: all var(--transition);
}

.tab-btn:hover {
    border-color: var(--primary);
    color: var(--primary);
}

.tab-btn.active {
    background: var(--gradient-primary);
    color: white;
    border-color: transparent;
    box-shadow: var(--shadow-glow);
}

/* ============================================
   APP DOWNLOAD SHOWCASE
   ============================================ */
.app-showcase {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-2xl);
    align-items: center;
}

.phone-mockup {
    width: 320px;
    height: 640px;
    background: var(--dark);
    border-radius: 40px;
    padding: 12px;
    box-shadow: var(--shadow-xl), 0 0 60px rgba(255,77,77,0.15);
    position: relative;
    margin: 0 auto;
}

.phone-screen {
    width: 100%;
    height: 100%;
    background: var(--gradient-dark);
    border-radius: 32px;
    overflow: hidden;
    position: relative;
}

.phone-notch {
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 120px;
    height: 28px;
    background: var(--dark);
    border-radius: 0 0 16px 16px;
    z-index: 10;
}

.phone-content {
    padding: 50px 20px 20px;
    color: white;
}

.phone-header {
    text-align: center;
    margin-bottom: var(--space-lg);
}

.phone-header h3 {
    font-family: var(--font-heading);
    font-size: 1.3rem;
    margin-bottom: var(--space-xs);
}

.phone-header p {
    font-size: 0.8rem;
    color: rgba(255,255,255,0.5);
}

.phone-card {
    background: rgba(255,255,255,0.08);
    border-radius: var(--radius);
    padding: var(--space-md);
    margin-bottom: var(--space-sm);
    backdrop-filter: blur(10px);
}

.phone-card-title {
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: var(--space-xs);
}

.phone-card-meta {
    font-size: 0.7rem;
    color: rgba(255,255,255,0.4);
}

.phone-nav {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 60px;
    background: rgba(0,0,0,0.5);
    backdrop-filter: blur(20px);
    display: flex;
    align-items: center;
    justify-content: space-around;
    border-top: 1px solid rgba(255,255,255,0.1);
}

.phone-nav-item {
    font-size: 0.7rem;
    color: rgba(255,255,255,0.5);
}

.phone-nav-item.active {
    color: var(--accent-gold);
}

.app-info-title {
    font-family: var(--font-heading);
    font-size: 2.5rem;
    font-weight: 900;
    margin-bottom: var(--space-md);
    color: white;
}

.app-info-desc {
    font-size: 1.1rem;
    color: rgba(255,255,255,0.6);
    line-height: 1.8;
    margin-bottom: var(--space-xl);
}

.app-features {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-md);
    margin-bottom: var(--space-xl);
}

.app-feature {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-md);
    background: rgba(255,255,255,0.05);
    border-radius: var(--radius);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255,255,255,0.08);
    transition: all var(--transition);
}

.app-feature:hover {
    background: rgba(255,255,255,0.1);
    transform: translateX(4px);
}

.app-feature-icon {
    font-size: 1.5rem;
}

.app-feature-text {
    font-size: 0.85rem;
    font-weight: 500;
    color: rgba(255,255,255,0.8);
}

/* ============================================
   SEARCH BAR
   ============================================ */
.search-bar {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    background: rgba(255,255,255,0.1);
    border: 1px solid rgba(255,255,255,0.2);
    border-radius: var(--radius-full);
    padding: var(--space-sm) var(--space-sm) var(--space-sm) var(--space-lg);
    backdrop-filter: blur(10px);
    max-width: 500px;
    margin-bottom: var(--space-lg);
    transition: all var(--transition);
}

.search-bar:focus-within {
    border-color: var(--accent-gold);
    background: rgba(255,255,255,0.15);
    box-shadow: 0 0 20px rgba(255,217,61,0.2);
}

.search-input {
    background: none;
    border: none;
    color: white;
    font-size: 1rem;
    flex: 1;
    padding: var(--space-sm) 0;
}

.search-input::placeholder {
    color: rgba(255,255,255,0.4);
}

.search-btn {
    width: 44px;
    height: 44px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.2rem;
    transition: all var(--transition);
}

.search-btn:hover {
    transform: scale(1.1);
    box-shadow: var(--shadow-glow);
}

/* ============================================
   STATS COUNTER
   ============================================ */
.stats-section {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-lg);
}

.stats-card {
    text-align: center;
    padding: var(--space-xl);
    background: rgba(255,255,255,0.05);
    border-radius: var(--radius-lg);
    border: 1px solid rgba(255,255,255,0.08);
    backdrop-filter: blur(10px);
    transition: all var(--transition);
}

.stats-card:hover {
    background: rgba(255,255,255,0.08);
    transform: translateY(-4px);
}

.stats-number {
    font-family: var(--font-heading);
    font-size: 2.5rem;
    font-weight: 900;
    color: var(--accent-gold);
    margin-bottom: var(--space-xs);
}

.stats-label {
    font-size: 0.9rem;
    color: rgba(255,255,255,0.5);
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
    background: var(--dark);
    color: rgba(255,255,255,0.6);
    padding: var(--space-3xl) 0 var(--space-xl);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: var(--space-2xl);
    margin-bottom: var(--space-2xl);
}

.footer-brand {
    max-width: 350px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-family: var(--font-display);
    font-size: 1.5rem;
    color: white;
    margin-bottom: var(--space-md);
}

.footer-desc {
    font-size: 0.9rem;
    line-height: 1.8;
    margin-bottom: var(--space-md);
}

.footer-social {
    display: flex;
    gap: var(--space-sm);
}

.footer-social-btn {
    width: 40px;
    height: 40px;
    background: rgba(255,255,255,0.08);
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    transition: all var(--transition);
    border: 1px solid rgba(255,255,255,0.1);
}

.footer-social-btn:hover {
    background: var(--gradient-primary);
    transform: translateY(-3px);
    color: white;
}

.footer-column h4 {
    font-family: var(--font-heading);
    font-size: 1rem;
    font-weight: 700;
    color: white;
    margin-bottom: var(--space-md);
}

.footer-column ul {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.footer-column a {
    font-size: 0.85rem;
    color: rgba(255,255,255,0.5);
    transition: color var(--transition);
}

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

.footer-bottom {
    padding-top: var(--space-xl);
    border-top: 1px solid rgba(255,255,255,0.08);
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.85rem;
    color: rgba(255,255,255,0.3);
}

/* ============================================
   PAGE HEADER (Sub-pages)
   ============================================ */
.page-header {
    padding: calc(var(--nav-height) + var(--space-3xl)) 0 var(--space-2xl);
    background: var(--gradient-dark);
    color: white;
    position: relative;
    overflow: hidden;
}

.page-header::before {
    content: '';
    position: absolute;
    inset: 0;
    background: 
        radial-gradient(ellipse 60% 40% at 30% 50%, rgba(255,77,77,0.12) 0%, transparent 50%),
        radial-gradient(ellipse 40% 30% at 70% 30%, rgba(255,217,61,0.08) 0%, transparent 50%);
}

.page-header-inner {
    position: relative;
    z-index: 2;
    text-align: center;
}

.page-header h1 {
    font-family: var(--font-heading);
    font-size: 3rem;
    font-weight: 900;
    margin-bottom: var(--space-md);
}

.page-header p {
    font-size: 1.1rem;
    color: rgba(255,255,255,0.6);
    max-width: 600px;
    margin: 0 auto;
}

.breadcrumb {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    font-size: 0.85rem;
    color: rgba(255,255,255,0.4);
    margin-top: var(--space-lg);
    justify-content: center;
}

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

.breadcrumb-separator {
    color: rgba(255,255,255,0.2);
}

/* ============================================
   ANIMATIONS
   ============================================ */
@keyframes pulse {
    0%, 100% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.3); opacity: 0.7; }
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-15px); }
}

@keyframes scroll-left {
    0% { transform: translateX(0); }
    100% { transform: translateX(-100%); }
}

@keyframes bar-grow {
    0% { width: 0; }
    100% { width: var(--bar-width, 100%); }
}

@keyframes fade-up {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes fade-in {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes scale-in {
    from { opacity: 0; transform: scale(0.9); }
    to { opacity: 1; transform: scale(1); }
}

@keyframes shimmer {
    0% { background-position: -200% 0; }
    100% { background-position: 200% 0; }
}

.animate-fade-up {
    animation: fade-up 0.6s ease-out both;
}

.animate-fade-in {
    animation: fade-in 0.8s ease-out both;
}

.animate-scale-in {
    animation: scale-in 0.6s ease-out both;
}

/* Scroll Reveal */
.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }

/* ============================================
   STAGGERED ANIMATIONS
   ============================================ */
.stagger > *:nth-child(1) { animation-delay: 0s; }
.stagger > *:nth-child(2) { animation-delay: 0.1s; }
.stagger > *:nth-child(3) { animation-delay: 0.2s; }
.stagger > *:nth-child(4) { animation-delay: 0.3s; }
.stagger > *:nth-child(5) { animation-delay: 0.4s; }
.stagger > *:nth-child(6) { animation-delay: 0.5s; }
.stagger > *:nth-child(7) { animation-delay: 0.6s; }
.stagger > *:nth-child(8) { animation-delay: 0.7s; }

/* ============================================
   SWIPE INDICATOR
   ============================================ */
.swipe-hint {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    color: rgba(255,255,255,0.4);
    font-size: 0.85rem;
    margin-top: var(--space-lg);
}

.swipe-hint-icon {
    animation: float 2s infinite;
}

/* ============================================
   EMPTY STATE
   ============================================ */
.empty-state {
    text-align: center;
    padding: var(--space-3xl) var(--space-md);
}

.empty-state-icon {
    font-size: 4rem;
    margin-bottom: var(--space-lg);
    opacity: 0.3;
}

.empty-state-text {
    font-size: 1.1rem;
    color: var(--text-light);
    margin-bottom: var(--space-lg);
}

/* ============================================
   LOADING SPINNER
   ============================================ */
.spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--border-light);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* ============================================
   TOOLTIP
   ============================================ */
.tooltip-wrapper {
    position: relative;
    display: inline-block;
}

.tooltip {
    position: absolute;
    bottom: calc(100% + 8px);
    left: 50%;
    transform: translateX(-50%) translateY(-4px);
    padding: 6px 14px;
    background: var(--dark);
    color: white;
    font-size: 0.8rem;
    border-radius: var(--radius-sm);
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: all var(--transition);
    z-index: 100;
}

.tooltip-wrapper:hover .tooltip {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 1024px) {
    .hero-inner {
        grid-template-columns: 1fr;
        gap: var(--space-xl);
    }

    .hero-visual {
        height: 350px;
        display: flex;
        justify-content: center;
    }

    .hero-card-1 { width: 220px; height: 280px; right: 60px; }
    .hero-card-2 { width: 180px; height: 220px; }
    .hero-card-3 { width: 160px; height: 200px; right: 80px; }

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

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

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

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

    .app-showcase {
        grid-template-columns: 1fr;
    }

    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: var(--space-xl);
    }

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

    .top3-grid {
        grid-template-columns: 1fr !important;
    }

    .video-grid[style*="repeat(3"] {
        grid-template-columns: 1fr !important;
    }
}

@media (max-width: 768px) {
    :root {
        --nav-height: 60px;
    }

    .nav-links {
        display: none;
    }

    .nav-toggle {
        display: flex;
    }

    .nav-cta {
        display: none;
    }

    /* Mobile menu */
    .nav.menu-open .nav-links {
        display: flex;
        position: fixed;
        top: var(--nav-height);
        left: 0;
        right: 0;
        bottom: 0;
        background: var(--dark);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: var(--space-xl);
        z-index: 999;
    }

    .nav.menu-open .nav-links a {
        color: white;
        font-size: 1.5rem;
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .hero-subtitle {
        font-size: 1rem;
    }

    .hero-stats {
        flex-wrap: wrap;
        gap: var(--space-lg);
    }

    .hero-visual {
        height: 250px;
    }

    .hero-card-1 { width: 160px; height: 200px; right: 20px; }
    .hero-card-2 { width: 130px; height: 160px; }
    .hero-card-3 { width: 110px; height: 140px; right: 40px; }

    .section {
        padding: var(--space-2xl) 0;
    }

    .section-title {
        font-size: 2rem;
    }

    .category-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--space-sm);
    }

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

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

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

    .app-features {
        grid-template-columns: 1fr;
    }

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

    .footer-bottom {
        flex-direction: column;
        gap: var(--space-sm);
        text-align: center;
    }

    .page-header h1 {
        font-size: 2rem;
    }

    .phone-mockup {
        width: 280px;
        height: 560px;
    }

    .hero-actions {
        flex-direction: column;
    }

    .hero-actions .btn {
        width: 100%;
    }

    .ranking-item {
        grid-template-columns: 40px 1fr;
    }

    .ranking-views {
        grid-column: 2;
        text-align: left;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }

    .section-title {
        font-size: 1.6rem;
    }

    .hero-card-1 { width: 140px; height: 180px; }
    .hero-card-2 { width: 110px; height: 140px; }
    .hero-card-3 { width: 90px; height: 120px; }

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

    .tab-filter {
        justify-content: flex-start;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }

    .tab-btn {
        white-space: nowrap;
    }
}

/* ============================================
   ACCESSIBILITY
   ============================================ */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

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

/* ============================================
   SELECTION
   ============================================ */
::selection {
    background: var(--primary);
    color: white;
}

/* ============================================
   CUSTOM SCROLLBAR
   ============================================ */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-alt);
}

::-webkit-scrollbar-thumb {
    background: var(--dark-light);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary);
}