/* 海角 - 全新原创设计 v2 */
/* 域名: ataptu.cn */

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

:root {
    --primary: #8b5cf6;
    --primary-dark: #7c3aed;
    --secondary: #ec4899;
    --accent: #06b6d4;
    --dark: #0f172a;
    --dark-light: #1e293b;
    --gray: #64748b;
    --gray-light: #94a3b8;
    --light: #f1f5f9;
    --white: #ffffff;
    --gradient-primary: linear-gradient(135deg, #8b5cf6 0%, #ec4899 100%);
    --gradient-dark: linear-gradient(180deg, #0f172a 0%, #1e293b 100%);
    --shadow-sm: 0 2px 8px rgba(0,0,0,0.08);
    --shadow-md: 0 8px 24px rgba(0,0,0,0.12);
    --shadow-lg: 0 16px 48px rgba(0,0,0,0.16);
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 28px;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
    background: var(--light);
    color: var(--dark);
    line-height: 1.6;
    min-height: 100vh;
}

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

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

ul, ol {
    list-style: none;
}

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Header */
.header {
    background: var(--white);
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: var(--shadow-sm);
}

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

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

.logo img {
    width: 44px;
    height: 44px;
    border-radius: var(--radius-sm);
}

.logo h1 {
    font-size: 1.5rem;
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-menu {
    display: flex;
    gap: 8px;
}

.nav-menu a {
    padding: 10px 18px;
    border-radius: var(--radius-md);
    font-weight: 500;
    color: var(--gray);
    transition: all 0.3s ease;
}

.nav-menu a:hover,
.nav-menu a.active {
    background: var(--gradient-primary);
    color: var(--white);
}

.mobile-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--dark);
}

/* Search Bar */
.search-section {
    background: var(--gradient-dark);
    padding: 20px 0;
}

.search-box {
    display: flex;
    max-width: 600px;
    margin: 0 auto;
    background: var(--white);
    border-radius: 50px;
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

.search-box input {
    flex: 1;
    padding: 14px 24px;
    border: none;
    outline: none;
    font-size: 1rem;
}

.search-box button {
    padding: 14px 32px;
    background: var(--gradient-primary);
    border: none;
    color: var(--white);
    font-weight: 600;
    cursor: pointer;
    transition: opacity 0.3s;
}

.search-box button:hover {
    opacity: 0.9;
}

/* Breadcrumb */
.breadcrumb {
    background: var(--white);
    padding: 16px 0;
    border-bottom: 1px solid var(--light);
}

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

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

.breadcrumb-list li:not(:last-child)::after {
    content: '/';
    margin-left: 8px;
    color: var(--gray-light);
}

/* Hero Section */
.hero {
    position: relative;
    min-height: 500px;
    display: flex;
    align-items: center;
    background: var(--gradient-dark);
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    opacity: 0.4;
}

.hero-bg img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    color: var(--white);
    padding: 60px 0;
}

.hero-content h1 {
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: 20px;
    text-shadow: 0 4px 20px rgba(0,0,0,0.3);
}

.hero-content p {
    font-size: 1.25rem;
    opacity: 0.9;
    max-width: 600px;
    margin: 0 auto 32px;
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 48px;
    margin-top: 40px;
}

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

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.stat-label {
    font-size: 0.9rem;
    opacity: 0.8;
    margin-top: 4px;
}

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

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

.section-header {
    text-align: center;
    margin-bottom: 48px;
}

.section-header h2 {
    font-size: 2.25rem;
    font-weight: 700;
    margin-bottom: 12px;
}

.section-header p {
    color: var(--gray);
    font-size: 1.1rem;
}

.section-dark .section-header p {
    color: var(--gray-light);
}

/* Video Grid */
.video-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 24px;
}

.video-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: all 0.4s ease;
}

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

.video-thumb {
    position: relative;
    aspect-ratio: 16/9;
    overflow: hidden;
}

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

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

.play-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0,0,0,0.3);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.video-card:hover .play-overlay {
    opacity: 1;
}

.play-btn {
    width: 64px;
    height: 64px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 1.5rem;
    box-shadow: 0 8px 32px rgba(139,92,246,0.4);
    transition: transform 0.3s ease;
}

.play-btn:hover {
    transform: scale(1.1);
}

.video-duration {
    position: absolute;
    bottom: 12px;
    right: 12px;
    background: rgba(0,0,0,0.75);
    color: var(--white);
    padding: 4px 10px;
    border-radius: 6px;
    font-size: 0.85rem;
    font-weight: 500;
}

.video-live {
    background: #ef4444;
}

.video-body {
    padding: 20px;
}

.video-body h3 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 12px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    line-height: 1.5;
}

.video-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    color: var(--gray);
    font-size: 0.85rem;
}

.video-stats {
    display: flex;
    gap: 16px;
}

/* Feature Cards */
.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 24px;
}

.feature-card {
    background: var(--white);
    padding: 32px;
    border-radius: var(--radius-lg);
    text-align: center;
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.feature-card:hover {
    border-color: var(--primary);
    transform: translateY(-4px);
}

.feature-icon {
    width: 72px;
    height: 72px;
    background: var(--gradient-primary);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    margin: 0 auto 20px;
}

.feature-card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 12px;
}

.feature-card p {
    color: var(--gray);
    font-size: 0.95rem;
}

/* Expert Cards */
.expert-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 32px;
}

.expert-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: transform 0.3s ease;
}

.expert-card:hover {
    transform: translateY(-6px);
}

.expert-img {
    height: 280px;
    overflow: hidden;
}

.expert-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.expert-info {
    padding: 24px;
}

.expert-info h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 4px;
}

.expert-title {
    color: var(--primary);
    font-size: 0.9rem;
    margin-bottom: 12px;
}

.expert-desc {
    color: var(--gray);
    font-size: 0.9rem;
    line-height: 1.6;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 28px;
    border-radius: 50px;
    font-weight: 600;
    font-size: 1rem;
    transition: all 0.3s ease;
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: var(--gradient-primary);
    color: var(--white);
    box-shadow: 0 4px 16px rgba(139,92,246,0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(139,92,246,0.4);
}

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

.btn-outline:hover {
    background: var(--primary);
    color: var(--white);
}

/* Contact Section */
.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 24px;
}

.contact-card {
    background: rgba(255,255,255,0.05);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: var(--radius-lg);
    padding: 28px;
    text-align: center;
}

.contact-card h3 {
    font-size: 1.1rem;
    margin-bottom: 16px;
    color: var(--white);
}

.contact-card p {
    color: var(--gray-light);
    font-size: 0.9rem;
    margin-bottom: 8px;
}

.contact-card img {
    width: 140px;
    height: 140px;
    margin: 16px auto 0;
    border-radius: var(--radius-md);
}

/* Review Cards */
.review-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: 24px;
}

.review-card {
    background: var(--white);
    padding: 28px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
}

.review-header {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 16px;
}

.review-avatar {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    object-fit: cover;
}

.review-author h4 {
    font-weight: 600;
    margin-bottom: 4px;
}

.review-author span {
    color: var(--gray);
    font-size: 0.85rem;
}

.review-stars {
    color: #fbbf24;
    margin-bottom: 12px;
}

.review-text {
    color: var(--gray);
    font-size: 0.95rem;
    line-height: 1.7;
}

/* Footer */
.footer {
    background: var(--dark);
    color: var(--white);
    padding: 64px 0 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr repeat(3, 1fr);
    gap: 48px;
    padding-bottom: 48px;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.footer-brand p {
    color: var(--gray-light);
    margin: 16px 0;
    font-size: 0.95rem;
    line-height: 1.7;
}

.footer-brand img {
    width: 100px;
    border-radius: var(--radius-sm);
    margin-top: 16px;
}

.footer-col h4 {
    font-size: 1.1rem;
    margin-bottom: 20px;
}

.footer-col ul li {
    margin-bottom: 12px;
}

.footer-col a {
    color: var(--gray-light);
    font-size: 0.95rem;
}

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

.footer-bottom {
    padding: 24px 0;
    text-align: center;
    color: var(--gray);
    font-size: 0.9rem;
}

.footer-bottom p {
    margin-bottom: 8px;
}

/* Page Header */
.page-header {
    background: var(--gradient-dark);
    padding: 60px 0;
    text-align: center;
    color: var(--white);
}

.page-header h1 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 12px;
}

.page-header p {
    color: var(--gray-light);
    font-size: 1.1rem;
}

/* Tool Cards */
.tool-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 24px;
}

.tool-card {
    background: var(--white);
    padding: 32px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
}

.tool-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-4px);
}

.tool-icon {
    width: 64px;
    height: 64px;
    background: var(--gradient-primary);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.75rem;
    margin-bottom: 20px;
}

.tool-card h3 {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 12px;
}

.tool-card p {
    color: var(--gray);
    font-size: 0.95rem;
    margin-bottom: 20px;
}

/* Community Cards */
.community-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 24px;
}

.community-card {
    background: var(--gradient-primary);
    padding: 28px;
    border-radius: var(--radius-lg);
    color: var(--white);
    text-align: center;
    transition: transform 0.3s ease;
}

.community-card:hover {
    transform: translateY(-4px);
}

.community-icon {
    font-size: 2.5rem;
    margin-bottom: 16px;
}

.community-card h3 {
    font-size: 1.2rem;
    margin-bottom: 12px;
}

.community-card p {
    opacity: 0.9;
    font-size: 0.95rem;
}

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

@media (max-width: 768px) {
    .nav-menu {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        right: 0;
        background: var(--white);
        flex-direction: column;
        padding: 16px;
        box-shadow: var(--shadow-md);
    }

    .nav-menu.active {
        display: flex;
    }

    .mobile-toggle {
        display: block;
    }

    .hero-content h1 {
        font-size: 2.25rem;
    }

    .hero-stats {
        flex-wrap: wrap;
        gap: 24px;
    }

    .section-header h2 {
        font-size: 1.75rem;
    }

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

    .video-grid,
    .feature-grid,
    .expert-grid,
    .tool-grid,
    .community-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }

    .hero-content h1 {
        font-size: 1.75rem;
    }

    .section {
        padding: 48px 0;
    }
}