/* ============================================
   攻略分享 - 主样式表
   汇聚各类实用经验分享平台
   ============================================ */

/* === CSS Variables === */
:root {
    --primary: #FF6B35;
    --primary-dark: #E55A2B;
    --primary-light: #FF8C5A;
    --secondary: #2EC4B6;
    --secondary-dark: #25A99D;
    --accent: #FFB347;
    --dark: #1A1A2E;
    --dark-light: #16213E;
    --dark-card: #0F3460;
    --gray-100: #F8F9FA;
    --gray-200: #E9ECEF;
    --gray-300: #DEE2E6;
    --gray-400: #CED4DA;
    --gray-500: #ADB5BD;
    --gray-600: #6C757D;
    --gray-700: #495057;
    --gray-800: #343A40;
    --text: #2D3436;
    --text-light: #636E72;
    --white: #FFFFFF;
    --white-alpha: rgba(255,255,255,0.9);
    --shadow-sm: 0 2px 8px rgba(0,0,0,0.08);
    --shadow-md: 0 4px 16px rgba(0,0,0,0.12);
    --shadow-lg: 0 8px 32px rgba(0,0,0,0.16);
    --shadow-xl: 0 16px 48px rgba(0,0,0,0.2);
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 28px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --font-main: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
    --max-width: 1280px;
    --header-height: 72px;
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: var(--header-height);
}

body {
    font-family: var(--font-main);
    color: var(--text);
    background: var(--gray-100);
    line-height: 1.7;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

a { text-decoration: none; color: inherit; transition: var(--transition); }
img { max-width: 100%; height: auto; display: block; }
ul { list-style: none; }
button { cursor: pointer; border: none; outline: none; font-family: inherit; }
input, textarea, select { font-family: inherit; outline: none; }
.container { max-width: var(--max-width); margin: 0 auto; padding: 0 24px; }

/* === Header / Navigation === */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(26, 26, 46, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255,255,255,0.08);
    transition: var(--transition);
    height: var(--header-height);
}

.header.scrolled {
    box-shadow: var(--shadow-lg);
    background: rgba(26, 26, 46, 0.98);
}

.header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--white);
    letter-spacing: 1px;
}

.logo-icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    color: var(--white);
    font-weight: bold;
}

.logo span { 
    background: linear-gradient(135deg, var(--primary), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav { display: flex; align-items: center; gap: 8px; }

.nav-link {
    color: rgba(255,255,255,0.75);
    padding: 8px 16px;
    border-radius: 25px;
    font-size: 0.95rem;
    font-weight: 500;
    transition: var(--transition);
    position: relative;
}

.nav-link:hover,
.nav-link.active {
    color: var(--white);
    background: rgba(255,255,255,0.1);
}

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: 2px;
    left: 50%;
    transform: translateX(-50%);
    width: 20px;
    height: 3px;
    background: var(--primary);
    border-radius: 2px;
}

.search-trigger {
    width: 40px;
    height: 40px;
    background: rgba(255,255,255,0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 1.1rem;
    transition: var(--transition);
    margin-left: 8px;
}

.search-trigger:hover { background: var(--primary); }

.mobile-toggle {
    display: none;
    width: 40px;
    height: 40px;
    background: rgba(255,255,255,0.1);
    border-radius: 50%;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 5px;
    padding: 0;
}

.mobile-toggle span {
    display: block;
    width: 20px;
    height: 2px;
    background: var(--white);
    border-radius: 2px;
    transition: var(--transition);
}

.mobile-toggle.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.mobile-toggle.active span:nth-child(2) { opacity: 0; }
.mobile-toggle.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* === Hero Section === */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, var(--dark) 0%, var(--dark-light) 40%, var(--dark-card) 100%);
    position: relative;
    overflow: hidden;
    padding-top: var(--header-height);
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, rgba(255,107,53,0.15) 0%, transparent 70%);
    border-radius: 50%;
    animation: heroFloat1 15s ease-in-out infinite;
}

.hero::after {
    content: '';
    position: absolute;
    bottom: -30%;
    left: -10%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(46,196,182,0.12) 0%, transparent 70%);
    border-radius: 50%;
    animation: heroFloat2 18s ease-in-out infinite;
}

@keyframes heroFloat1 {
    0%, 100% { transform: translate(0, 0); }
    50% { transform: translate(-50px, 30px); }
}

@keyframes heroFloat2 {
    0%, 100% { transform: translate(0, 0); }
    50% { transform: translate(50px, -30px); }
}

.hero-particles {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    pointer-events: none;
}

.hero-particle {
    position: absolute;
    background: rgba(255,255,255,0.1);
    border-radius: 50%;
    animation: particleFloat linear infinite;
}

@keyframes particleFloat {
    0% { transform: translateY(100vh) rotate(0deg); opacity: 0; }
    10% { opacity: 1; }
    90% { opacity: 1; }
    100% { transform: translateY(-100px) rotate(720deg); opacity: 0; }
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 700px;
    padding: 60px 0;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(255,107,53,0.15);
    border: 1px solid rgba(255,107,53,0.3);
    color: var(--primary-light);
    padding: 8px 20px;
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 24px;
    animation: fadeInUp 0.6s ease;
}

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

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(0.8); }
}

.hero h1 {
    font-size: 3.5rem;
    font-weight: 900;
    color: var(--white);
    line-height: 1.2;
    margin-bottom: 20px;
    animation: fadeInUp 0.6s ease 0.1s both;
}

.hero h1 .highlight {
    background: linear-gradient(135deg, var(--primary), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-desc {
    font-size: 1.2rem;
    color: rgba(255,255,255,0.7);
    margin-bottom: 40px;
    line-height: 1.8;
    animation: fadeInUp 0.6s ease 0.2s both;
}

.hero-actions {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    animation: fadeInUp 0.6s ease 0.3s both;
}

.hero-stats {
    display: flex;
    gap: 48px;
    margin-top: 60px;
    animation: fadeInUp 0.6s ease 0.4s both;
}

.hero-stat {
    text-align: center;
}

.hero-stat-num {
    font-size: 2.5rem;
    font-weight: 900;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-stat-label {
    font-size: 0.9rem;
    color: rgba(255,255,255,0.5);
    margin-top: 4px;
}

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

/* === Buttons === */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 32px;
    border-radius: 50px;
    font-size: 1rem;
    font-weight: 600;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    color: var(--white);
    box-shadow: 0 4px 16px rgba(255,107,53,0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(255,107,53,0.5);
}

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

.btn-outline:hover {
    border-color: var(--primary);
    background: rgba(255,107,53,0.1);
}

.btn-sm {
    padding: 8px 20px;
    font-size: 0.9rem;
}

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

.btn-white:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* === Section Styles === */
.section {
    padding: 100px 0;
}

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

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-tag {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--primary);
    font-weight: 700;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 12px;
}

.section-tag::before {
    content: '';
    width: 24px;
    height: 2px;
    background: var(--primary);
    border-radius: 1px;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 900;
    margin-bottom: 16px;
    line-height: 1.3;
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--text-light);
    max-width: 600px;
    margin: 0 auto;
}

.section-dark .section-title { color: var(--white); }
.section-dark .section-subtitle { color: rgba(255,255,255,0.6); }

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

.category-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 40px 30px;
    text-align: center;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    cursor: pointer;
    border: 1px solid transparent;
}

.category-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
    transition: var(--transition);
}

.category-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: var(--gray-200);
}

.category-card:nth-child(1)::before { background: linear-gradient(90deg, #FF6B35, #FF8C5A); }
.category-card:nth-child(2)::before { background: linear-gradient(90deg, #2EC4B6, #48D1CC); }
.category-card:nth-child(3)::before { background: linear-gradient(90deg, #FFB347, #FFC773); }
.category-card:nth-child(4)::before { background: linear-gradient(90deg, #E94057, #F27181); }

.category-icon {
    width: 72px;
    height: 72px;
    margin: 0 auto 24px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    transition: var(--transition);
}

.category-card:nth-child(1) .category-icon { background: rgba(255,107,53,0.1); color: var(--primary); }
.category-card:nth-child(2) .category-icon { background: rgba(46,196,182,0.1); color: var(--secondary); }
.category-card:nth-child(3) .category-icon { background: rgba(255,179,71,0.1); color: var(--accent); }
.category-card:nth-child(4) .category-icon { background: rgba(233,64,87,0.1); color: #E94057; }

.category-card:hover .category-icon {
    transform: scale(1.1) rotate(-5deg);
}

.category-card h3 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--text);
}

.category-card p {
    font-size: 0.9rem;
    color: var(--text-light);
    line-height: 1.6;
    margin-bottom: 20px;
}

.category-link {
    color: var(--primary);
    font-weight: 600;
    font-size: 0.9rem;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: var(--transition);
}

.category-link .arrow {
    transition: var(--transition);
}

.category-card:hover .category-link .arrow {
    transform: translateX(4px);
}

.category-count {
    display: inline-block;
    background: var(--gray-100);
    color: var(--text-light);
    padding: 4px 12px;
    border-radius: 50px;
    font-size: 0.8rem;
    margin-top: 12px;
}

/* === Article Cards === */
.articles-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.article-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    position: relative;
}

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

.article-thumb {
    position: relative;
    height: 220px;
    overflow: hidden;
    background: linear-gradient(135deg, var(--dark-light), var(--dark-card));
}

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

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

.article-thumb-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    color: rgba(255,255,255,0.3);
}

.article-badge {
    position: absolute;
    top: 16px;
    left: 16px;
    background: var(--primary);
    color: var(--white);
    padding: 4px 12px;
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 700;
    z-index: 2;
}

.article-badge.game { background: var(--primary); }
.article-badge.travel { background: var(--secondary); }
.article-badge.food { background: var(--accent); color: var(--dark); }
.article-badge.fitness { background: #E94057; }

.article-body {
    padding: 24px;
}

.article-meta {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 12px;
    font-size: 0.8rem;
    color: var(--text-light);
}

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

.article-card h3 {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 10px;
    line-height: 1.5;
    color: var(--text);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    transition: var(--transition);
}

.article-card:hover h3 { color: var(--primary); }

.article-excerpt {
    font-size: 0.9rem;
    color: var(--text-light);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    margin-bottom: 16px;
    line-height: 1.6;
}

.article-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 16px;
    border-top: 1px solid var(--gray-200);
}

.article-author {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.85rem;
    color: var(--text-light);
}

.article-author-avatar {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: var(--gray-300);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.7rem;
    color: var(--white);
    overflow: hidden;
}

.article-stats {
    display: flex;
    gap: 12px;
    font-size: 0.8rem;
    color: var(--text-light);
}

.article-stats span {
    display: flex;
    align-items: center;
    gap: 4px;
}

/* === Featured Section === */
.featured-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: 24px;
}

.featured-main {
    background: var(--white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    cursor: pointer;
    position: relative;
}

.featured-main:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.featured-main-thumb {
    height: 400px;
    position: relative;
    overflow: hidden;
    background: linear-gradient(135deg, #1a1a2e, #0f3460);
}

.featured-main-thumb .overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 60%;
    background: linear-gradient(transparent, rgba(0,0,0,0.8));
    z-index: 1;
}

.featured-main-body {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 40px;
    z-index: 2;
    color: var(--white);
}

.featured-main-body h2 {
    font-size: 1.8rem;
    font-weight: 800;
    margin-bottom: 12px;
    line-height: 1.4;
}

.featured-main-body p {
    opacity: 0.85;
    margin-bottom: 16px;
}

.featured-side {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.featured-side-item {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 24px;
    display: flex;
    gap: 20px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    cursor: pointer;
    flex: 1;
}

.featured-side-item:hover {
    transform: translateX(8px);
    box-shadow: var(--shadow-md);
}

.featured-side-thumb {
    width: 120px;
    height: 100px;
    border-radius: var(--radius-md);
    overflow: hidden;
    flex-shrink: 0;
    background: linear-gradient(135deg, var(--dark-light), var(--dark-card));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: rgba(255,255,255,0.3);
}

.featured-side-content h4 {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 8px;
    line-height: 1.4;
}

.featured-side-content p {
    font-size: 0.85rem;
    color: var(--text-light);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* === Newsletter === */
.newsletter {
    background: linear-gradient(135deg, var(--dark), var(--dark-card));
    padding: 80px 0;
    position: relative;
    overflow: hidden;
}

.newsletter::before {
    content: '';
    position: absolute;
    top: -100px;
    right: -100px;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(255,107,53,0.2) 0%, transparent 70%);
    border-radius: 50%;
}

.newsletter-content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
}

.newsletter h2 {
    font-size: 2.2rem;
    font-weight: 900;
    color: var(--white);
    margin-bottom: 12px;
}

.newsletter p {
    color: rgba(255,255,255,0.7);
    margin-bottom: 32px;
    font-size: 1.05rem;
}

.newsletter-form {
    display: flex;
    gap: 12px;
    max-width: 500px;
    margin: 0 auto;
}

.newsletter-form input {
    flex: 1;
    padding: 16px 24px;
    border-radius: 50px;
    border: 2px solid rgba(255,255,255,0.15);
    background: rgba(255,255,255,0.08);
    color: var(--white);
    font-size: 1rem;
    transition: var(--transition);
}

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

.newsletter-form input:focus {
    border-color: var(--primary);
    background: rgba(255,255,255,0.12);
}

/* === Search Modal === */
.search-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0,0,0,0.8);
    z-index: 2000;
    display: flex;
    align-items: flex-start;
    justify-content: center;
    padding-top: 150px;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    backdrop-filter: blur(8px);
}

.search-overlay.active {
    opacity: 1;
    visibility: visible;
}

.search-modal {
    width: 90%;
    max-width: 650px;
    background: var(--white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
    transform: translateY(-20px);
    transition: transform 0.3s ease;
}

.search-overlay.active .search-modal {
    transform: translateY(0);
}

.search-input-wrap {
    display: flex;
    align-items: center;
    padding: 16px 24px;
    gap: 12px;
    border-bottom: 1px solid var(--gray-200);
}

.search-input-wrap input {
    flex: 1;
    border: none;
    font-size: 1.2rem;
    padding: 8px 0;
    color: var(--text);
}

.search-input-wrap input::placeholder { color: var(--gray-400); }
.search-close {
    width: 36px;
    height: 36px;
    background: var(--gray-100);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    color: var(--text-light);
    transition: var(--transition);
}

.search-close:hover { background: var(--gray-200); }

.search-results {
    max-height: 400px;
    overflow-y: auto;
    padding: 8px 0;
}

.search-result-item {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px 24px;
    transition: var(--transition);
    cursor: pointer;
}

.search-result-item:hover { background: var(--gray-100); }

.search-empty {
    padding: 48px 24px;
    text-align: center;
    color: var(--text-light);
}

/* === Breadcrumb === */
.breadcrumb {
    background: var(--white);
    padding: 16px 0;
    border-bottom: 1px solid var(--gray-200);
    margin-top: var(--header-height);
}

.breadcrumb-nav {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.9rem;
    color: var(--text-light);
}

.breadcrumb-nav a { color: var(--primary); }
.breadcrumb-nav a:hover { text-decoration: underline; }
.breadcrumb-nav .separator { color: var(--gray-400); }

/* === Page Header === */
.page-header {
    background: linear-gradient(135deg, var(--dark) 0%, var(--dark-light) 50%, var(--dark-card) 100%);
    padding: 80px 0 60px;
    text-align: center;
    margin-top: var(--header-height);
    position: relative;
    overflow: hidden;
}

.page-header h1 {
    font-size: 2.8rem;
    font-weight: 900;
    color: var(--white);
    margin-bottom: 12px;
    position: relative;
}

.page-header p {
    color: rgba(255,255,255,0.7);
    font-size: 1.1rem;
    position: relative;
}

/* === Filter Bar === */
.filter-bar {
    background: var(--white);
    border-bottom: 1px solid var(--gray-200);
    padding: 16px 0;
    position: sticky;
    top: var(--header-height);
    z-index: 100;
}

.filter-bar .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    flex-wrap: wrap;
}

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

.filter-tag {
    padding: 8px 20px;
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 500;
    background: var(--gray-100);
    color: var(--text-light);
    transition: var(--transition);
    cursor: pointer;
    border: 1px solid transparent;
}

.filter-tag:hover { background: var(--gray-200); }

.filter-tag.active {
    background: var(--primary);
    color: var(--white);
    border-color: var(--primary);
}

.filter-sort select {
    padding: 10px 16px;
    border-radius: 50px;
    border: 1px solid var(--gray-300);
    background: var(--white);
    font-size: 0.9rem;
    color: var(--text);
    cursor: pointer;
}

/* === Pagination === */
.pagination {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-top: 48px;
}

.pagination-btn {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: var(--white);
    color: var(--text);
    font-weight: 600;
    font-size: 0.95rem;
    transition: var(--transition);
    box-shadow: var(--shadow-sm);
    border: 1px solid transparent;
}

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

.pagination-btn.active {
    background: var(--primary);
    color: var(--white);
    border-color: var(--primary);
}

.pagination-btn.disabled {
    opacity: 0.4;
    pointer-events: none;
}

/* === Article Detail === */
.article-container {
    max-width: 820px;
    margin: 0 auto;
    padding: 40px 0;
}

.article-header {
    margin-bottom: 40px;
}

.article-header .article-badge {
    position: static;
    display: inline-block;
    margin-bottom: 16px;
}

.article-header h1 {
    font-size: 2.4rem;
    font-weight: 900;
    line-height: 1.3;
    margin-bottom: 20px;
}

.article-header-meta {
    display: flex;
    align-items: center;
    gap: 20px;
    flex-wrap: wrap;
    color: var(--text-light);
    font-size: 0.9rem;
}

.article-featured-img {
    border-radius: var(--radius-lg);
    overflow: hidden;
    margin-bottom: 40px;
    height: 420px;
    background: linear-gradient(135deg, var(--dark-light), var(--dark-card));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 4rem;
    color: rgba(255,255,255,0.3);
}

.article-content {
    font-size: 1.1rem;
    line-height: 1.9;
    color: var(--text);
}

.article-content h2 {
    font-size: 1.6rem;
    font-weight: 800;
    margin: 40px 0 16px;
    padding-left: 16px;
    border-left: 4px solid var(--primary);
}

.article-content h3 {
    font-size: 1.3rem;
    font-weight: 700;
    margin: 32px 0 12px;
}

.article-content p {
    margin-bottom: 20px;
}

.article-content ul, .article-content ol {
    margin: 16px 0 24px;
    padding-left: 24px;
}

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

.article-content blockquote {
    background: var(--gray-100);
    border-left: 4px solid var(--secondary);
    padding: 20px 24px;
    margin: 24px 0;
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
    font-style: italic;
    color: var(--text-light);
}

.article-content .tip-box {
    background: linear-gradient(135deg, rgba(255,107,53,0.08), rgba(255,107,53,0.02));
    border: 1px solid rgba(255,107,53,0.2);
    padding: 20px 24px;
    border-radius: var(--radius-md);
    margin: 24px 0;
}

.article-content .tip-box strong {
    color: var(--primary);
}

/* === Share & Tags === */
.article-tags {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    margin: 32px 0;
    padding: 24px 0;
    border-top: 1px solid var(--gray-200);
    border-bottom: 1px solid var(--gray-200);
}

.article-tags .tag {
    padding: 6px 14px;
    background: var(--gray-100);
    border-radius: 50px;
    font-size: 0.85rem;
    color: var(--text-light);
    transition: var(--transition);
}

.article-tags .tag:hover { background: var(--primary); color: var(--white); }

.article-share {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 40px;
}

.article-share span { font-weight: 600; color: var(--text-light); }

.share-btn {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    transition: var(--transition);
    background: var(--gray-100);
    color: var(--text);
}

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

/* === Related Articles === */
.related-section {
    background: var(--gray-100);
    padding: 60px 0;
}

/* === About Page === */
.about-hero {
    text-align: center;
    padding-bottom: 60px;
}

.about-mission {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 48px;
    box-shadow: var(--shadow-sm);
    margin-bottom: 40px;
}

.about-mission h3 {
    font-size: 1.5rem;
    margin-bottom: 16px;
    color: var(--primary);
}

.values-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-top: 40px;
}

.value-card {
    text-align: center;
    padding: 40px 24px;
    background: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

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

.value-icon {
    width: 72px;
    height: 72px;
    margin: 0 auto 20px;
    border-radius: 50%;
    font-size: 1.8rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255,107,53,0.1);
    color: var(--primary);
}

.value-card h4 { font-size: 1.15rem; margin-bottom: 10px; }

.value-card p { font-size: 0.9rem; color: var(--text-light); }

/* === Contact Page === */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.3fr;
    gap: 40px;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.contact-info-card {
    background: var(--white);
    padding: 28px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    display: flex;
    gap: 16px;
    align-items: flex-start;
    transition: var(--transition);
}

.contact-info-card:hover { box-shadow: var(--shadow-md); }

.contact-info-icon {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: rgba(255,107,53,0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    color: var(--primary);
    flex-shrink: 0;
}

.contact-info-text h4 { font-size: 1rem; margin-bottom: 4px; }
.contact-info-text p { font-size: 0.9rem; color: var(--text-light); }

.contact-form-wrap {
    background: var(--white);
    padding: 40px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
}

.contact-form .form-group {
    margin-bottom: 20px;
}

.contact-form label {
    display: block;
    font-weight: 600;
    margin-bottom: 8px;
    font-size: 0.9rem;
}

.contact-form input,
.contact-form textarea,
.contact-form select {
    width: 100%;
    padding: 14px 16px;
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-sm);
    font-size: 1rem;
    transition: var(--transition);
    background: var(--gray-100);
}

.contact-form input:focus,
.contact-form textarea:focus,
.contact-form select:focus {
    border-color: var(--primary);
    background: var(--white);
}

.contact-form textarea {
    min-height: 140px;
    resize: vertical;
}

/* === Footer === */
.footer {
    background: var(--dark);
    color: rgba(255,255,255,0.7);
    padding: 60px 0 30px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 48px;
    margin-bottom: 40px;
}

.footer-brand p {
    margin-top: 16px;
    font-size: 0.9rem;
    line-height: 1.7;
}

.footer h4 {
    color: var(--white);
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 20px;
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.footer-links a {
    font-size: 0.9rem;
    transition: var(--transition);
}

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

.footer-social {
    display: flex;
    gap: 12px;
    margin-top: 16px;
}

.footer-social a {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(255,255,255,0.08);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    transition: var(--transition);
    color: var(--white);
}

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

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.08);
    padding-top: 24px;
    text-align: center;
    font-size: 0.85rem;
}

/* === Toast === */
.toast {
    position: fixed;
    bottom: 40px;
    right: 40px;
    background: var(--dark);
    color: var(--white);
    padding: 16px 28px;
    border-radius: 50px;
    font-weight: 600;
    z-index: 3000;
    opacity: 0;
    transform: translateY(20px);
    transition: var(--transition);
    box-shadow: var(--shadow-lg);
}

.toast.show {
    opacity: 1;
    transform: translateY(0);
}

.toast.success { background: var(--secondary); }
.toast.error { background: #E94057; }

/* === Scroll To Top === */
.scroll-top {
    position: fixed;
    bottom: 40px;
    left: 40px;
    width: 48px;
    height: 48px;
    background: var(--primary);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    box-shadow: var(--shadow-md);
    z-index: 999;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
}

.scroll-top.visible {
    opacity: 1;
    visibility: visible;
}

.scroll-top:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

/* === Animations === */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* === Responsive === */
@media (max-width: 1200px) {
    .categories-grid { grid-template-columns: repeat(2, 1fr); }
    .articles-grid { grid-template-columns: repeat(2, 1fr); }
    .featured-grid { grid-template-columns: 1fr; }
    .values-grid { grid-template-columns: repeat(2, 1fr); }
    .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
    :root { --header-height: 64px; }

    .nav {
        position: fixed;
        top: var(--header-height);
        left: 0;
        right: 0;
        background: rgba(26, 26, 46, 0.98);
        backdrop-filter: blur(20px);
        flex-direction: column;
        padding: 24px;
        gap: 4px;
        border-bottom: 1px solid rgba(255,255,255,0.08);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: var(--transition);
    }

    .nav.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }

    .mobile-toggle { display: flex; }

    .hero h1 { font-size: 2.2rem; }
    .hero-stats { gap: 32px; flex-wrap: wrap; }
    .hero-stat-num { font-size: 1.8rem; }

    .section { padding: 60px 0; }
    .section-title { font-size: 1.8rem; }
    .section-header { margin-bottom: 40px; }

    .categories-grid { grid-template-columns: 1fr; }
    .articles-grid { grid-template-columns: 1fr; }
    .featured-main-thumb { height: 260px; }
    .featured-main-body { padding: 24px; }
    .featured-main-body h2 { font-size: 1.3rem; }
    .featured-side-item { flex-direction: column; }
    .featured-side-thumb { width: 100%; height: 150px; }

    .values-grid { grid-template-columns: 1fr; }
    .contact-grid { grid-template-columns: 1fr; }

    .newsletter-form { flex-direction: column; }
    .newsletter h2 { font-size: 1.6rem; }

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

    .page-header { padding: 50px 0 40px; }
    .page-header h1 { font-size: 2rem; }

    .article-header h1 { font-size: 1.6rem; }
    .article-content { font-size: 1rem; }
    .article-featured-img { height: 240px; }

    .about-mission { padding: 28px; }
    .contact-form-wrap { padding: 28px; }

    .breadcrumb { display: none; }
}

@media (max-width: 480px) {
    .container { padding: 0 16px; }
    .hero h1 { font-size: 1.8rem; }
    .hero-desc { font-size: 1rem; }
    .hero-actions { flex-direction: column; }
    .hero-actions .btn { width: 100%; justify-content: center; }
    .filter-bar .container { flex-direction: column; align-items: flex-start; }
    .filter-tags { overflow-x: auto; width: 100%; padding-bottom: 8px; flex-wrap: nowrap; }
    .scroll-top { bottom: 20px; left: 20px; }
    .toast { bottom: 20px; right: 20px; left: 20px; text-align: center; }
}