/* =============================================
   香蕉视频 - 主样式文件
   bdsanc.cn
   ============================================= */

/* CSS变量 */
:root {
    --primary: #e8336d;
    --primary-dark: #c4205a;
    --primary-light: #ff6b9d;
    --secondary: #2d1b69;
    --secondary-light: #4a3080;
    --accent: #ff9a3c;
    --accent-light: #ffb86c;
    --bg-main: #0d0d1a;
    --bg-card: #161628;
    --bg-card2: #1e1e35;
    --text-main: #f0f0f8;
    --text-muted: #9090b8;
    --text-light: #c8c8e0;
    --border: rgba(232,51,109,0.2);
    --border-light: rgba(255,255,255,0.08);
    --gradient-primary: linear-gradient(135deg, #e8336d 0%, #c4205a 50%, #9b1a4a 100%);
    --gradient-hero: linear-gradient(135deg, #0d0d1a 0%, #1a0d2e 50%, #0d1a2e 100%);
    --gradient-card: linear-gradient(145deg, #161628 0%, #1e1e35 100%);
    --shadow-card: 0 8px 32px rgba(0,0,0,0.4);
    --shadow-hover: 0 16px 48px rgba(232,51,109,0.25);
    --radius: 12px;
    --radius-lg: 20px;
    --radius-xl: 28px;
    --transition: all 0.3s cubic-bezier(0.4,0,0.2,1);
}

/* 基础重置 */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

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

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

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

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

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

ul, ol {
    list-style: none;
}

/* =============================================
   顶部公告条
   ============================================= */
.xr26owz {
    background: var(--gradient-primary);
    text-align: center;
    padding: 8px 20px;
    font-size: 13px;
    color: #fff;
    letter-spacing: 0.5px;
}

.xr26owz a {
    color: #fff;
    font-weight: 600;
    text-decoration: underline;
}

/* =============================================
   导航栏
   ============================================= */
.site-header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: rgba(13,13,26,0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    transition: var(--transition);
}

.header-inner {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 68px;
}

/* Logo */
.site-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
}

.logo-icon {
    width: 44px;
    height: 44px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    font-weight: 900;
    color: #fff;
    box-shadow: 0 4px 16px rgba(232,51,109,0.4);
    flex-shrink: 0;
}

.logo-text {
    display: flex;
    flex-direction: column;
}

.logo-name {
    font-size: 22px;
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.2;
}

.logo-slogan {
    font-size: 11px;
    color: var(--text-muted);
    letter-spacing: 1px;
}

/* 主导航 */
.main-nav {
    display: flex;
    align-items: center;
    gap: 4px;
}

.nav-item {
    position: relative;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 8px 14px;
    color: var(--text-light);
    font-size: 14px;
    font-weight: 500;
    border-radius: 8px;
    transition: var(--transition);
    white-space: nowrap;
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary-light);
    background: rgba(232,51,109,0.1);
}

.nav-link .nav-arrow {
    font-size: 10px;
    transition: transform 0.2s;
}

.nav-item:hover .nav-arrow {
    transform: rotate(180deg);
}

/* 下拉菜单 */
.dropdown {
    position: absolute;
    top: calc(100% + 8px);
    left: 50%;
    transform: translateX(-50%);
    background: var(--bg-card2);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 8px;
    min-width: 160px;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    box-shadow: var(--shadow-card);
    z-index: 100;
}

.nav-item:hover .dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}

.dropdown a {
    display: block;
    padding: 8px 14px;
    color: var(--text-light);
    font-size: 13px;
    border-radius: 6px;
    transition: var(--transition);
}

.dropdown a:hover {
    background: rgba(232,51,109,0.12);
    color: var(--primary-light);
}

/* 头部右侧 */
.header-right {
    display: flex;
    align-items: center;
    gap: 12px;
}

.btn-join {
    background: var(--gradient-primary);
    color: #fff;
    padding: 8px 20px;
    border-radius: 24px;
    font-size: 13px;
    font-weight: 600;
    transition: var(--transition);
    box-shadow: 0 4px 16px rgba(232,51,109,0.3);
}

.btn-join:hover {
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(232,51,109,0.45);
}

/* 汉堡菜单 */
.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 4px;
    background: none;
    border: none;
}

.hamburger span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text-main);
    border-radius: 2px;
    transition: var(--transition);
}

/* =============================================
   搜索框
   ============================================= */
.search-bar-wrap {
    background: rgba(22,22,40,0.98);
    border-bottom: 1px solid var(--border-light);
    padding: 12px 24px;
}

.search-bar-inner {
    max-width: 1280px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    gap: 12px;
}

.search-form {
    flex: 1;
    display: flex;
    align-items: center;
    background: var(--bg-card2);
    border: 1px solid var(--border);
    border-radius: 28px;
    padding: 0 16px;
    gap: 10px;
    transition: var(--transition);
    max-width: 640px;
}

.search-form:focus-within {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(232,51,109,0.15);
}

.search-icon {
    color: var(--text-muted);
    font-size: 16px;
    flex-shrink: 0;
}

.search-input {
    flex: 1;
    background: none;
    border: none;
    outline: none;
    color: var(--text-main);
    font-size: 14px;
    padding: 10px 0;
    font-family: inherit;
}

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

.search-btn {
    background: var(--gradient-primary);
    color: #fff;
    border: none;
    padding: 7px 20px;
    border-radius: 20px;
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    font-family: inherit;
}

.search-btn:hover {
    opacity: 0.9;
    transform: scale(1.03);
}

.xonsfd3hl {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.x6whjexiq {
    font-size: 12px;
    color: var(--text-muted);
    padding: 3px 10px;
    border: 1px solid var(--border-light);
    border-radius: 12px;
    cursor: pointer;
    transition: var(--transition);
}

.x6whjexiq:hover {
    color: var(--primary-light);
    border-color: var(--primary);
}

/* =============================================
   面包屑
   ============================================= */
.breadcrumb {
    max-width: 1280px;
    margin: 0 auto;
    padding: 12px 24px;
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 13px;
    color: var(--text-muted);
}

.breadcrumb a {
    color: var(--text-muted);
}

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

.breadcrumb .sep {
    color: var(--border);
}

.breadcrumb .current {
    color: var(--primary-light);
}

/* =============================================
   通用区块样式
   ============================================= */
.section {
    padding: 72px 0;
}

.section-sm {
    padding: 48px 0;
}

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

.section-header {
    text-align: center;
    margin-bottom: 52px;
}

.section-tag {
    display: inline-block;
    background: rgba(232,51,109,0.12);
    color: var(--primary-light);
    border: 1px solid rgba(232,51,109,0.3);
    padding: 4px 14px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 1px;
    margin-bottom: 14px;
    text-transform: uppercase;
}

.section-title {
    font-size: clamp(26px, 4vw, 38px);
    font-weight: 800;
    color: var(--text-main);
    line-height: 1.25;
    margin-bottom: 14px;
}

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

.section-desc {
    font-size: 15px;
    color: var(--text-muted);
    max-width: 560px;
    margin: 0 auto;
    line-height: 1.8;
}

/* =============================================
   按钮
   ============================================= */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 28px;
    border-radius: 28px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    font-family: inherit;
    text-decoration: none;
}

.btn-primary {
    background: var(--gradient-primary);
    color: #fff;
    box-shadow: 0 4px 20px rgba(232,51,109,0.35);
}

.btn-primary:hover {
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 8px 32px rgba(232,51,109,0.5);
}

.btn-outline {
    background: transparent;
    color: var(--primary-light);
    border: 1.5px solid var(--primary);
}

.btn-outline:hover {
    background: rgba(232,51,109,0.1);
    color: var(--primary-light);
    transform: translateY(-2px);
}

.btn-ghost {
    background: rgba(255,255,255,0.06);
    color: var(--text-light);
    border: 1px solid var(--border-light);
}

.btn-ghost:hover {
    background: rgba(255,255,255,0.1);
    color: var(--text-main);
}

.btn-lg {
    padding: 15px 36px;
    font-size: 15px;
}

.btn-sm {
    padding: 7px 18px;
    font-size: 12px;
}

/* =============================================
   卡片
   ============================================= */
.card {
    background: var(--gradient-card);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: var(--transition);
    box-shadow: var(--shadow-card);
}

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

/* =============================================
   视频卡片
   ============================================= */
.video-card {
    background: var(--gradient-card);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: var(--transition);
    cursor: pointer;
    position: relative;
}

.video-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-hover);
    border-color: rgba(232,51,109,0.35);
}

.video-thumb {
    position: relative;
    overflow: hidden;
    aspect-ratio: 16/9;
    background: #0a0a18;
}

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

.video-card:hover .video-thumb img {
    transform: scale(1.06);
}

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

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

.play-circle {
    width: 60px;
    height: 60px;
    background: rgba(232,51,109,0.9);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(8px);
    box-shadow: 0 8px 32px rgba(232,51,109,0.5);
    transform: scale(0.8);
    transition: transform 0.3s ease;
}

.video-card:hover .play-circle {
    transform: scale(1);
}

.play-circle svg {
    width: 24px;
    height: 24px;
    fill: #fff;
    margin-left: 3px;
}

.video-badge {
    position: absolute;
    top: 10px;
    left: 10px;
    background: var(--gradient-primary);
    color: #fff;
    font-size: 11px;
    font-weight: 700;
    padding: 3px 10px;
    border-radius: 12px;
}

.video-duration {
    position: absolute;
    bottom: 10px;
    right: 10px;
    background: rgba(0,0,0,0.75);
    color: #fff;
    font-size: 12px;
    padding: 2px 8px;
    border-radius: 6px;
}

.video-info {
    padding: 16px;
}

.video-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-main);
    margin-bottom: 8px;
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.video-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 12px;
    color: var(--text-muted);
}

.video-stats {
    display: flex;
    gap: 12px;
}

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

/* =============================================
   英雄区
   ============================================= */
.hero {
    position: relative;
    min-height: 88vh;
    display: flex;
    align-items: center;
    overflow: hidden;
    background: var(--gradient-hero);
}

.hero-bg {
    position: absolute;
    inset: 0;
    z-index: 0;
}

.hero-bg img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.18;
}

.x1nyvd4nm {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(13,13,26,0.92) 0%, rgba(26,13,46,0.75) 60%, rgba(13,26,46,0.85) 100%);
}

.xnr0yqh {
    position: absolute;
    inset: 0;
    overflow: hidden;
    pointer-events: none;
}

.particle {
    position: absolute;
    border-radius: 50%;
    animation: float-particle linear infinite;
    opacity: 0.4;
}

@keyframes float-particle {
    0% { transform: translateY(100vh) scale(0); opacity: 0; }
    10% { opacity: 0.4; }
    90% { opacity: 0.4; }
    100% { transform: translateY(-20vh) scale(1); opacity: 0; }
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 1280px;
    margin: 0 auto;
    padding: 80px 24px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-left {}

.xgsmjk {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(232,51,109,0.12);
    border: 1px solid rgba(232,51,109,0.3);
    color: var(--primary-light);
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 24px;
    animation: pulse-badge 2s ease-in-out infinite;
}

@keyframes pulse-badge {
    0%, 100% { box-shadow: 0 0 0 0 rgba(232,51,109,0.3); }
    50% { box-shadow: 0 0 0 8px rgba(232,51,109,0); }
}

.xgsmjk .xo0smc1en {
    width: 8px;
    height: 8px;
    background: var(--primary);
    border-radius: 50%;
    animation: blink 1.5s ease-in-out infinite;
}

@keyframes blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.3; }
}

.hero-title {
    font-size: clamp(36px, 5.5vw, 64px);
    font-weight: 900;
    line-height: 1.15;
    margin-bottom: 24px;
    color: var(--text-main);
}

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

.hero-title .sub {
    display: block;
    font-size: 0.55em;
    font-weight: 600;
    color: var(--text-muted);
    margin-top: 8px;
}

.hero-desc {
    font-size: 16px;
    color: var(--text-muted);
    line-height: 1.85;
    margin-bottom: 36px;
    max-width: 480px;
}

.hero-actions {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    margin-bottom: 48px;
}

.hero-stats {
    display: flex;
    gap: 32px;
}

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

.hero-stat .num {
    font-size: 28px;
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
}

.hero-stat .label {
    font-size: 12px;
    color: var(--text-muted);
    margin-top: 4px;
}

/* 英雄右侧 */
.hero-right {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.hero-card {
    background: rgba(22,22,40,0.8);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    overflow: hidden;
    backdrop-filter: blur(12px);
    transition: var(--transition);
}

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

.hero-card.featured {
    grid-column: span 2;
}

.hero-card img {
    width: 100%;
    height: 160px;
    object-fit: cover;
}

.hero-card.featured img {
    height: 200px;
}

.hero-card-info {
    padding: 12px 14px;
}

.hero-card-tag {
    font-size: 11px;
    color: var(--primary-light);
    font-weight: 600;
    margin-bottom: 4px;
}

.hero-card-title {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-main);
    line-height: 1.4;
}

/* =============================================
   标签栏
   ============================================= */
.tab-bar {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    margin-bottom: 36px;
}

.tab-btn {
    padding: 8px 20px;
    border-radius: 24px;
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    border: 1.5px solid var(--border-light);
    background: transparent;
    color: var(--text-muted);
    font-family: inherit;
}

.tab-btn:hover,
.tab-btn.active {
    background: var(--gradient-primary);
    color: #fff;
    border-color: transparent;
    box-shadow: 0 4px 16px rgba(232,51,109,0.3);
}

/* =============================================
   网格布局
   ============================================= */
.grid-4 {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

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

.grid-2 {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

/* =============================================
   专家卡片
   ============================================= */
.expert-card {
    background: var(--gradient-card);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    padding: 28px 24px;
    text-align: center;
    transition: var(--transition);
}

.expert-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-hover);
    border-color: var(--border);
}

.expert-avatar {
    width: 88px;
    height: 88px;
    border-radius: 50%;
    margin: 0 auto 16px;
    border: 3px solid var(--primary);
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(232,51,109,0.3);
}

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

.expert-name {
    font-size: 17px;
    font-weight: 700;
    color: var(--text-main);
    margin-bottom: 4px;
}

.expert-role {
    font-size: 12px;
    color: var(--primary-light);
    font-weight: 600;
    margin-bottom: 10px;
    background: rgba(232,51,109,0.1);
    display: inline-block;
    padding: 2px 10px;
    border-radius: 10px;
}

.expert-bio {
    font-size: 13px;
    color: var(--text-muted);
    line-height: 1.7;
    margin-bottom: 16px;
}

.expert-awards {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
    justify-content: center;
    margin-bottom: 16px;
}

.award-tag {
    font-size: 11px;
    padding: 3px 8px;
    background: rgba(255,154,60,0.12);
    color: var(--accent);
    border-radius: 8px;
    border: 1px solid rgba(255,154,60,0.2);
}

.expert-actions {
    display: flex;
    gap: 8px;
    justify-content: center;
}

/* =============================================
   评价卡片
   ============================================= */
.review-card {
    background: var(--gradient-card);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    padding: 24px;
    transition: var(--transition);
}

.review-card:hover {
    border-color: var(--border);
    box-shadow: var(--shadow-card);
}

.review-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 14px;
}

.review-avatar {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    font-weight: 700;
    color: #fff;
    flex-shrink: 0;
}

.review-user {
    flex: 1;
}

.review-name {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-main);
}

.review-date {
    font-size: 12px;
    color: var(--text-muted);
}

.review-stars {
    color: var(--accent);
    font-size: 14px;
}

.review-text {
    font-size: 14px;
    color: var(--text-light);
    line-height: 1.75;
}

.review-tag {
    display: inline-block;
    margin-top: 10px;
    font-size: 11px;
    color: var(--primary-light);
    background: rgba(232,51,109,0.08);
    padding: 2px 8px;
    border-radius: 8px;
}

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

.faq-item {
    background: var(--gradient-card);
    border: 1px solid var(--border-light);
    border-radius: var(--radius);
    margin-bottom: 12px;
    overflow: hidden;
    transition: var(--transition);
}

.faq-item.open {
    border-color: var(--border);
}

.faq-question {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 18px 22px;
    cursor: pointer;
    font-size: 15px;
    font-weight: 600;
    color: var(--text-main);
    gap: 12px;
}

.faq-icon {
    width: 24px;
    height: 24px;
    background: rgba(232,51,109,0.12);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-light);
    font-size: 16px;
    flex-shrink: 0;
    transition: transform 0.3s ease;
}

.faq-item.open .faq-icon {
    transform: rotate(45deg);
    background: var(--gradient-primary);
    color: #fff;
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease, padding 0.3s ease;
}

.faq-item.open .faq-answer {
    max-height: 300px;
}

.faq-answer-inner {
    padding: 0 22px 18px;
    font-size: 14px;
    color: var(--text-muted);
    line-height: 1.8;
    border-top: 1px solid var(--border-light);
    padding-top: 14px;
}

/* =============================================
   合作品牌
   ============================================= */
.partners-row {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
}

.partner-logo {
    background: var(--bg-card2);
    border: 1px solid var(--border-light);
    border-radius: var(--radius);
    padding: 16px 28px;
    font-size: 15px;
    font-weight: 700;
    color: var(--text-muted);
    transition: var(--transition);
    min-width: 120px;
    text-align: center;
}

.partner-logo:hover {
    color: var(--primary-light);
    border-color: var(--border);
    background: rgba(232,51,109,0.06);
}

/* =============================================
   联系区
   ============================================= */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: start;
}

.contact-info-card {
    background: var(--gradient-card);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    padding: 32px;
}

.contact-info-title {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-main);
    margin-bottom: 24px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.contact-row {
    display: flex;
    align-items: flex-start;
    gap: 14px;
    margin-bottom: 20px;
}

.contact-icon {
    width: 40px;
    height: 40px;
    background: rgba(232,51,109,0.12);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    flex-shrink: 0;
    color: var(--primary-light);
}

.contact-label {
    font-size: 12px;
    color: var(--text-muted);
    margin-bottom: 2px;
}

.contact-value {
    font-size: 14px;
    color: var(--text-main);
    font-weight: 500;
}

/* QR码区 */
.qr-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.qr-card {
    background: var(--gradient-card);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    padding: 24px;
    text-align: center;
    transition: var(--transition);
}

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

.qr-placeholder {
    width: 120px;
    height: 120px;
    margin: 0 auto 12px;
    background: #fff;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.qr-placeholder canvas {
    width: 120px !important;
    height: 120px !important;
}

.qr-label {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-main);
    margin-bottom: 4px;
}

.qr-desc {
    font-size: 12px;
    color: var(--text-muted);
}

/* =============================================
   社交分享
   ============================================= */
.share-bar {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    align-items: center;
}

.share-label {
    font-size: 13px;
    color: var(--text-muted);
    font-weight: 600;
}

.share-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    font-family: inherit;
    text-decoration: none;
}

.share-wechat { background: #07c160; color: #fff; }
.share-weibo { background: #e6162d; color: #fff; }
.share-douyin { background: #000; color: #fff; border: 1px solid #333; }
.share-bilibili { background: #00a1d6; color: #fff; }

.share-btn:hover {
    color: #fff;
    opacity: 0.85;
    transform: translateY(-2px);
}

/* =============================================
   页脚
   ============================================= */
.site-footer {
    background: #080814;
    border-top: 1px solid var(--border-light);
    padding: 60px 0 0;
}

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

.footer-brand {}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 16px;
    text-decoration: none;
}

.footer-logo-icon {
    width: 40px;
    height: 40px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    font-weight: 900;
    color: #fff;
}

.footer-logo-name {
    font-size: 20px;
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.footer-desc {
    font-size: 13px;
    color: var(--text-muted);
    line-height: 1.8;
    margin-bottom: 20px;
}

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

.social-btn {
    width: 36px;
    height: 36px;
    background: var(--bg-card2);
    border: 1px solid var(--border-light);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    color: var(--text-muted);
    transition: var(--transition);
    text-decoration: none;
}

.social-btn:hover {
    background: rgba(232,51,109,0.12);
    border-color: var(--border);
    color: var(--primary-light);
    transform: translateY(-2px);
}

.footer-col-title {
    font-size: 14px;
    font-weight: 700;
    color: var(--text-main);
    margin-bottom: 18px;
    position: relative;
    padding-bottom: 10px;
}

.footer-col-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 28px;
    height: 2px;
    background: var(--gradient-primary);
    border-radius: 2px;
}

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

.footer-links a {
    font-size: 13px;
    color: var(--text-muted);
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 6px;
}

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

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

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

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

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

.footer-update {
    font-size: 12px;
    color: var(--text-muted);
}

.footer-icp {
    font-size: 12px;
    color: var(--text-muted);
}

/* =============================================
   弹幕效果
   ============================================= */
.xghbnq9bv {
    position: relative;
    height: 60px;
    overflow: hidden;
    background: rgba(0,0,0,0.3);
    border-radius: var(--radius);
    margin-bottom: 24px;
}

.danmu-item {
    position: absolute;
    white-space: nowrap;
    font-size: 13px;
    color: rgba(255,255,255,0.75);
    animation: danmu-scroll linear infinite;
    top: 50%;
    transform: translateY(-50%);
}

@keyframes danmu-scroll {
    0% { right: -300px; }
    100% { right: 110%; }
}

/* =============================================
   直播卡片
   ============================================= */
.x105yinxr {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    background: #e8336d;
    color: #fff;
    font-size: 11px;
    font-weight: 700;
    padding: 3px 10px;
    border-radius: 10px;
    animation: live-pulse 1.5s ease-in-out infinite;
}

@keyframes live-pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
}

.xr71s9r2i {
    width: 6px;
    height: 6px;
    background: #fff;
    border-radius: 50%;
}

/* =============================================
   加入社区步骤
   ============================================= */
.steps-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    position: relative;
}

.steps-grid::before {
    content: '';
    position: absolute;
    top: 32px;
    left: 10%;
    right: 10%;
    height: 2px;
    background: linear-gradient(90deg, var(--primary) 0%, var(--accent) 100%);
    opacity: 0.3;
    z-index: 0;
}

.step-card {
    background: var(--gradient-card);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    padding: 28px 20px;
    text-align: center;
    position: relative;
    z-index: 1;
    transition: var(--transition);
}

.step-card:hover {
    transform: translateY(-6px);
    border-color: var(--border);
    box-shadow: var(--shadow-hover);
}

.step-num {
    width: 56px;
    height: 56px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    font-weight: 800;
    color: #fff;
    margin: 0 auto 16px;
    box-shadow: 0 4px 20px rgba(232,51,109,0.35);
}

.step-title {
    font-size: 15px;
    font-weight: 700;
    color: var(--text-main);
    margin-bottom: 8px;
}

.step-desc {
    font-size: 13px;
    color: var(--text-muted);
    line-height: 1.7;
}

/* =============================================
   AI功能卡片
   ============================================= */
.ai-feature-card {
    background: var(--gradient-card);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    padding: 28px 24px;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.ai-feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-primary);
    opacity: 0;
    transition: opacity 0.3s;
}

.ai-feature-card:hover {
    transform: translateY(-6px);
    border-color: var(--border);
    box-shadow: var(--shadow-hover);
}

.ai-feature-card:hover::before {
    opacity: 1;
}

.ai-icon {
    width: 56px;
    height: 56px;
    background: rgba(232,51,109,0.1);
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 26px;
    margin-bottom: 18px;
    transition: var(--transition);
}

.ai-feature-card:hover .ai-icon {
    background: rgba(232,51,109,0.2);
    transform: scale(1.1);
}

.ai-feature-title {
    font-size: 16px;
    font-weight: 700;
    color: var(--text-main);
    margin-bottom: 8px;
}

.ai-feature-desc {
    font-size: 13px;
    color: var(--text-muted);
    line-height: 1.75;
}

/* =============================================
   统计数字
   ============================================= */
.stats-section {
    background: linear-gradient(135deg, rgba(232,51,109,0.08) 0%, rgba(45,27,105,0.12) 100%);
    border-top: 1px solid var(--border-light);
    border-bottom: 1px solid var(--border-light);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0;
}

.stat-item {
    text-align: center;
    padding: 40px 20px;
    border-right: 1px solid var(--border-light);
}

.stat-item:last-child {
    border-right: none;
}

.stat-num {
    font-size: 40px;
    font-weight: 900;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    margin-bottom: 8px;
}

.stat-label {
    font-size: 14px;
    color: var(--text-muted);
    font-weight: 500;
}

/* =============================================
   内页样式
   ============================================= */
.page-hero {
    background: linear-gradient(135deg, #0d0d1a 0%, #1a0d2e 100%);
    padding: 60px 0;
    border-bottom: 1px solid var(--border-light);
    position: relative;
    overflow: hidden;
}

.page-hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -10%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(232,51,109,0.08) 0%, transparent 70%);
    pointer-events: none;
}

.page-hero-title {
    font-size: clamp(28px, 4vw, 44px);
    font-weight: 800;
    color: var(--text-main);
    margin-bottom: 12px;
}

.page-hero-desc {
    font-size: 15px;
    color: var(--text-muted);
    max-width: 560px;
    line-height: 1.8;
}

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

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

/* =============================================
   响应式
   ============================================= */
@media (max-width: 1200px) {
    .grid-4 { grid-template-columns: repeat(3, 1fr); }
    .footer-grid { grid-template-columns: 1fr 1fr; }
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
    .stat-item:nth-child(2) { border-right: none; }
}

@media (max-width: 992px) {
    .hero-content { grid-template-columns: 1fr; gap: 40px; }
    .hero-right { display: none; }
    .grid-3 { grid-template-columns: repeat(2, 1fr); }
    .steps-grid { grid-template-columns: repeat(2, 1fr); }
    .steps-grid::before { display: none; }
    .contact-grid { grid-template-columns: 1fr; }
    .main-nav { display: none; }
    .hamburger { display: flex; }
}

@media (max-width: 768px) {
    .section { padding: 48px 0; }
    .grid-4, .grid-3 { grid-template-columns: repeat(2, 1fr); }
    .grid-2 { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; gap: 28px; }
    .footer-bottom { flex-direction: column; text-align: center; }
    .hero-stats { gap: 20px; }
    .xonsfd3hl { display: none; }
    .qr-grid { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
    .grid-4, .grid-3, .grid-2 { grid-template-columns: 1fr; }
    .hero-actions { flex-direction: column; }
    .steps-grid { grid-template-columns: 1fr; }
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
    .header-inner { padding: 0 16px; }
    .container { padding: 0 16px; }
}

/* =============================================
   移动端菜单
   ============================================= */
.mobile-menu {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(13,13,26,0.98);
    z-index: 999;
    flex-direction: column;
    padding: 80px 24px 24px;
    overflow-y: auto;
}

.mobile-menu.open {
    display: flex;
}

.mobile-menu-close {
    position: absolute;
    top: 20px;
    right: 20px;
    background: none;
    border: none;
    color: var(--text-main);
    font-size: 28px;
    cursor: pointer;
}

.mobile-nav-link {
    display: block;
    padding: 16px 0;
    font-size: 18px;
    font-weight: 600;
    color: var(--text-main);
    border-bottom: 1px solid var(--border-light);
    text-decoration: none;
    transition: var(--transition);
}

.mobile-nav-link:hover {
    color: var(--primary-light);
    padding-left: 8px;
}

/* =============================================
   图片懒加载
   ============================================= */
img[data-src] {
    opacity: 0;
    transition: opacity 0.4s ease;
}

img.loaded {
    opacity: 1;
}

/* =============================================
   滚动条
   ============================================= */
::-webkit-scrollbar {
    width: 6px;
}

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

::-webkit-scrollbar-thumb {
    background: rgba(232,51,109,0.4);
    border-radius: 3px;
}

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

/* =============================================
   选中样式
   ============================================= */
::selection {
    background: rgba(232,51,109,0.3);
    color: #fff;
}

/* =============================================
   补充工具类（修复内联style）
   ============================================= */
.text-primary { color: var(--primary-light); }
.text-muted   { color: var(--text-muted); }
.text-main    { color: var(--text-main); }
.text-center  { text-align: center; }
.mt-4  { margin-top: 4px; }
.mt-8  { margin-top: 8px; }
.mt-12 { margin-top: 12px; }
.mt-16 { margin-top: 16px; }
.mt-20 { margin-top: 20px; }
.mt-24 { margin-top: 24px; }
.mt-32 { margin-top: 32px; }
.mt-40 { margin-top: 40px; }
.mt-48 { margin-top: 48px; }
.mt-60 { margin-top: 60px; }
.mb-12 { margin-bottom: 12px; }
.mb-16 { margin-bottom: 16px; }
.mb-32 { margin-bottom: 32px; }
.btn-block { width: 100%; justify-content: center; }

/* =============================================
   页脚补充类
   ============================================= */
.share-section {
    background: rgba(22,22,40,0.5);
    border-top: 1px solid rgba(255,255,255,0.05);
    padding: 24px 0;
}
.share-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 16px;
}
.share-title {
    font-size: 14px;
    color: var(--text-muted);
    margin-bottom: 8px;
}
.share-contact {
    text-align: right;
    font-size: 13px;
    color: var(--text-muted);
}
.share-contact p { margin-bottom: 4px; }
.footer-qr-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-bottom: 40px;
    padding: 28px;
    background: var(--bg-card2);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-light);
}
.footer-contact-line { margin-top: 4px; }
.footer-icp a { color: var(--text-muted); margin: 0 2px; }
.footer-icp a:hover { color: var(--primary-light); }

/* =============================================
   社区功能卡片
   ============================================= */
.community-feature-card {
    background: var(--gradient-card);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    padding: 28px 24px;
    text-align: center;
    transition: var(--transition);
}
.community-feature-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-hover);
    border-color: var(--border);
}
.community-icon {
    font-size: 36px;
    margin-bottom: 14px;
    display: block;
}
.community-feature-title {
    font-size: 16px;
    font-weight: 700;
    color: var(--text-main);
    margin-bottom: 8px;
}
.community-feature-desc {
    font-size: 13px;
    color: var(--text-muted);
    line-height: 1.75;
}

/* =============================================
   美图展示区
   ============================================= */
.photo-gallery {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 12px;
}
.photo-item {
    position: relative;
    aspect-ratio: 3/4;
    border-radius: var(--radius);
    overflow: hidden;
    cursor: pointer;
}
.photo-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}
.photo-item:hover img { transform: scale(1.08); }
.photo-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(0,0,0,0.65) 0%, transparent 55%);
    opacity: 0;
    transition: opacity 0.3s;
    display: flex;
    align-items: flex-end;
    padding: 12px;
}
.photo-item:hover .photo-overlay { opacity: 1; }
.photo-label {
    font-size: 12px;
    color: #fff;
    font-weight: 600;
}

/* =============================================
   情感/亲密教育科普区
   ============================================= */
.edu-card {
    background: var(--gradient-card);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    padding: 24px;
    transition: var(--transition);
    display: flex;
    gap: 16px;
    align-items: flex-start;
}
.edu-card:hover {
    border-color: var(--border);
    box-shadow: var(--shadow-card);
    transform: translateY(-3px);
}
.edu-icon {
    width: 48px;
    height: 48px;
    background: rgba(232,51,109,0.1);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    flex-shrink: 0;
}
.edu-content {}
.edu-title {
    font-size: 15px;
    font-weight: 700;
    color: var(--text-main);
    margin-bottom: 6px;
}
.edu-desc {
    font-size: 13px;
    color: var(--text-muted);
    line-height: 1.7;
}
.edu-tag {
    display: inline-block;
    margin-top: 8px;
    font-size: 11px;
    color: var(--primary-light);
    background: rgba(232,51,109,0.08);
    padding: 2px 8px;
    border-radius: 8px;
}

/* =============================================
   幕后花絮区
   ============================================= */
.behind-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr;
    gap: 16px;
}
.behind-main {
    grid-row: span 2;
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    aspect-ratio: 3/4;
}
.behind-item {
    position: relative;
    border-radius: var(--radius);
    overflow: hidden;
    aspect-ratio: 16/9;
}
.behind-main img,
.behind-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}
.behind-main:hover img,
.behind-item:hover img { transform: scale(1.06); }
.behind-caption {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(to top, rgba(0,0,0,0.75) 0%, transparent 100%);
    padding: 20px 16px 14px;
}
.behind-caption-tag {
    font-size: 11px;
    background: var(--gradient-primary);
    color: #fff;
    padding: 2px 8px;
    border-radius: 8px;
    font-weight: 700;
    display: inline-block;
    margin-bottom: 4px;
}
.behind-caption-title {
    font-size: 14px;
    font-weight: 700;
    color: #fff;
}

/* =============================================
   内页增强：编辑说明 / 作者信息
   ============================================= */
.editorial-notice {
    background: rgba(232,51,109,0.06);
    border: 1px solid rgba(232,51,109,0.15);
    border-left: 3px solid var(--primary);
    border-radius: var(--radius);
    padding: 14px 18px;
    font-size: 13px;
    color: var(--text-muted);
    line-height: 1.7;
    margin-bottom: 24px;
}
.editorial-notice strong { color: var(--text-main); }

/* =============================================
   内页面包屑增强
   ============================================= */
.breadcrumb-inner {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
    font-size: 13px;
    color: var(--text-muted);
    padding: 12px 0;
}
.breadcrumb-inner a { color: var(--text-muted); transition: var(--transition); }
.breadcrumb-inner a:hover { color: var(--primary-light); }
.breadcrumb-inner .sep { color: rgba(255,255,255,0.25); }
.breadcrumb-inner .current { color: var(--text-light); }

/* =============================================
   荣誉资质展示
   ============================================= */
.honor-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}
.honor-card {
    background: var(--gradient-card);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    padding: 24px 20px;
    text-align: center;
    transition: var(--transition);
}
.honor-card:hover {
    border-color: var(--border);
    transform: translateY(-4px);
    box-shadow: var(--shadow-card);
}
.honor-icon { font-size: 32px; margin-bottom: 10px; }
.honor-title {
    font-size: 14px;
    font-weight: 700;
    color: var(--text-main);
    margin-bottom: 4px;
}
.honor-year { font-size: 12px; color: var(--text-muted); }

/* =============================================
   移动端补充
   ============================================= */
.mobile-menu-cta {
    margin-top: 24px;
    padding: 0 16px;
}

@media (max-width: 768px) {
    .photo-gallery { grid-template-columns: repeat(2, 1fr); }
    .behind-grid { grid-template-columns: 1fr; }
    .behind-main { grid-row: span 1; aspect-ratio: 16/9; }
    .honor-grid { grid-template-columns: repeat(2, 1fr); }
    .footer-qr-grid { grid-template-columns: repeat(2, 1fr); }
    .share-row { flex-direction: column; align-items: flex-start; }
    .share-contact { text-align: left; }
    .edu-card { flex-direction: column; }
}
@media (max-width: 480px) {
    .photo-gallery { grid-template-columns: repeat(2, 1fr); }
    .honor-grid { grid-template-columns: 1fr 1fr; }
}