/* ============================================
   成都中圈品茶 - 黑金风格全站CSS
   高端会所 · 专属休闲生活服务
   ============================================ */

/* === 全局重置与基础样式 === */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --gold: #d4af37;
    --gold-light: #f0d060;
    --gold-dark: #b8960c;
    --black: #0a0a0a;
    --black-light: #1a1a1a;
    --black-card: #141414;
    --gray-dark: #2a2a2a;
    --gray: #3a3a3a;
    --text-light: #e8e8e8;
    --text-muted: #999;
    --gradient-gold: linear-gradient(135deg, #d4af37 0%, #f0d060 50%, #d4af37 100%);
    --gradient-dark: linear-gradient(180deg, #0a0a0a 0%, #1a1a1a 100%);
    --shadow-gold: 0 0 20px rgba(212, 175, 55, 0.3);
    --shadow-card: 0 4px 30px rgba(0, 0, 0, 0.5);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Microsoft YaHei', 'PingFang SC', 'Helvetica Neue', Arial, sans-serif;
    background: var(--black);
    color: var(--text-light);
    line-height: 1.8;
    overflow-x: hidden;
}

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

a:hover {
    color: var(--gold-light);
}

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

/* === 滚动条美化 === */
::-webkit-scrollbar {
    width: 8px;
}

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

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

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

/* === 顶部导航栏 === */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(10, 10, 10, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(212, 175, 55, 0.2);
    transition: var(--transition);
}

.header.scrolled {
    background: rgba(10, 10, 10, 0.98);
    box-shadow: 0 2px 30px rgba(0, 0, 0, 0.5);
}

.header-inner {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 30px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 80px;
}

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

.logo img {
    height: 50px;
    width: auto;
}

.logo-text {
    font-size: 20px;
    font-weight: bold;
    background: var(--gradient-gold);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: 2px;
}

.nav {
    display: flex;
    align-items: center;
    gap: 5px;
}

.nav a {
    color: var(--text-light);
    padding: 10px 20px;
    border-radius: 6px;
    font-size: 15px;
    position: relative;
    transition: var(--transition);
}

.nav a:hover,
.nav a.active {
    color: var(--gold);
    background: rgba(212, 175, 55, 0.1);
}

.nav a::after {
    content: '';
    position: absolute;
    bottom: 5px;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background: var(--gold);
    transition: var(--transition);
}

.nav a:hover::after,
.nav a.active::after {
    width: 60%;
}

/* 移动端菜单按钮 */
.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 10px;
}

.menu-toggle span {
    width: 25px;
    height: 2px;
    background: var(--gold);
    transition: var(--transition);
}

/* === Hero区域 === */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    background: var(--black);
}

.hero-bg {
    position: absolute;
    inset: 0;
    background: 
        radial-gradient(ellipse at 20% 50%, rgba(212, 175, 55, 0.08) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 50%, rgba(212, 175, 55, 0.05) 0%, transparent 50%),
        radial-gradient(ellipse at 50% 100%, rgba(212, 175, 55, 0.03) 0%, transparent 50%),
        var(--gradient-dark);
    z-index: 0;
}

.hero-particles {
    position: absolute;
    inset: 0;
    z-index: 1;
    overflow: hidden;
}

.particle {
    position: absolute;
    width: 3px;
    height: 3px;
    background: var(--gold);
    border-radius: 50%;
    opacity: 0;
    animation: particleFloat 6s infinite;
}

@keyframes particleFloat {
    0% { opacity: 0; transform: translateY(100vh) scale(0); }
    10% { opacity: 0.6; }
    90% { opacity: 0.6; }
    100% { opacity: 0; transform: translateY(-10vh) scale(1); }
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    padding: 0 20px;
    max-width: 900px;
}

.hero h1 {
    font-size: 56px;
    font-weight: 900;
    background: var(--gradient-gold);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 20px;
    letter-spacing: 4px;
    text-shadow: none;
    animation: fadeInUp 1s ease-out;
}

.hero-subtitle {
    font-size: 22px;
    color: var(--text-muted);
    margin-bottom: 15px;
    letter-spacing: 6px;
    animation: fadeInUp 1s ease-out 0.2s both;
}

.hero-desc {
    font-size: 16px;
    color: var(--text-muted);
    margin-bottom: 40px;
    line-height: 2;
    animation: fadeInUp 1s ease-out 0.4s both;
}

.hero-btns {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
    animation: fadeInUp 1s ease-out 0.6s both;
}

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

/* === 按钮样式 === */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 36px;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    letter-spacing: 1px;
}

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

.btn-gold:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(212, 175, 55, 0.4);
    color: var(--black);
}

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

.btn-outline:hover {
    background: rgba(212, 175, 55, 0.1);
    transform: translateY(-2px);
}

/* === 通用区块 === */
.section {
    padding: 100px 30px;
    position: relative;
}

.section-dark {
    background: var(--black-light);
}

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

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

.section-title h2 {
    font-size: 40px;
    font-weight: 800;
    background: var(--gradient-gold);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 15px;
    letter-spacing: 3px;
}

.section-title p {
    color: var(--text-muted);
    font-size: 16px;
    letter-spacing: 2px;
}

.section-title .divider {
    width: 80px;
    height: 3px;
    background: var(--gradient-gold);
    margin: 20px auto 0;
    border-radius: 2px;
}

/* === 特色服务卡片 === */
.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.feature-card {
    background: var(--black-card);
    border: 1px solid rgba(212, 175, 55, 0.15);
    border-radius: 16px;
    padding: 40px 30px;
    text-align: center;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-gold);
    transform: scaleX(0);
    transition: var(--transition);
}

.feature-card:hover {
    transform: translateY(-8px);
    border-color: rgba(212, 175, 55, 0.4);
    box-shadow: var(--shadow-gold);
}

.feature-card:hover::before {
    transform: scaleX(1);
}

.feature-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 25px;
    background: rgba(212, 175, 55, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 36px;
    border: 2px solid rgba(212, 175, 55, 0.2);
}

.feature-card h3 {
    font-size: 22px;
    color: var(--gold);
    margin-bottom: 15px;
    letter-spacing: 1px;
}

.feature-card p {
    color: var(--text-muted);
    font-size: 15px;
    line-height: 1.8;
}

/* === 文章列表 === */
.articles-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
}

.article-card {
    background: var(--black-card);
    border: 1px solid rgba(212, 175, 55, 0.1);
    border-radius: 12px;
    overflow: hidden;
    transition: var(--transition);
}

.article-card:hover {
    transform: translateY(-5px);
    border-color: rgba(212, 175, 55, 0.3);
    box-shadow: var(--shadow-card);
}

.article-card-img {
    height: 220px;
    background: var(--gray-dark);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 60px;
    position: relative;
    overflow: hidden;
}

.article-card-img::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 60px;
    background: linear-gradient(transparent, var(--black-card));
}

.article-card-body {
    padding: 25px;
}

.article-card-body h3 {
    font-size: 20px;
    color: var(--gold);
    margin-bottom: 12px;
    line-height: 1.4;
}

.article-card-body h3 a {
    color: inherit;
}

.article-card-body h3 a:hover {
    color: var(--gold-light);
}

.article-card-body p {
    color: var(--text-muted);
    font-size: 14px;
    line-height: 1.8;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.article-meta {
    display: flex;
    gap: 20px;
    margin-top: 15px;
    font-size: 13px;
    color: var(--text-muted);
}

/* === 文章详情页 === */
.article-detail {
    max-width: 900px;
    margin: 0 auto;
    padding: 120px 30px 80px;
}

.article-detail h1 {
    font-size: 36px;
    background: var(--gradient-gold);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 20px;
    line-height: 1.4;
    letter-spacing: 1px;
}

.article-detail .article-info {
    display: flex;
    gap: 25px;
    color: var(--text-muted);
    font-size: 14px;
    margin-bottom: 40px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--gray);
}

.article-detail .article-content {
    font-size: 16px;
    line-height: 2;
    color: var(--text-light);
}

.article-detail .article-content h2 {
    font-size: 26px;
    color: var(--gold);
    margin: 40px 0 20px;
    padding-left: 15px;
    border-left: 4px solid var(--gold);
}

.article-detail .article-content h3 {
    font-size: 20px;
    color: var(--gold-light);
    margin: 30px 0 15px;
}

.article-detail .article-content p {
    margin-bottom: 20px;
    text-indent: 2em;
}

.article-detail .article-content ul,
.article-detail .article-content ol {
    margin: 20px 0;
    padding-left: 30px;
}

.article-detail .article-content li {
    margin-bottom: 10px;
}

.article-detail .article-content blockquote {
    border-left: 4px solid var(--gold);
    padding: 20px 25px;
    margin: 30px 0;
    background: rgba(212, 175, 55, 0.05);
    border-radius: 0 8px 8px 0;
    color: var(--text-muted);
    font-style: italic;
}

/* === 关于我们 === */
.about-section {
    padding-top: 120px;
}

.about-hero {
    text-align: center;
    margin-bottom: 60px;
}

.about-hero h1 {
    font-size: 48px;
    background: var(--gradient-gold);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 20px;
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    margin-bottom: 80px;
}

.about-text h2 {
    font-size: 30px;
    color: var(--gold);
    margin-bottom: 20px;
}

.about-text p {
    color: var(--text-muted);
    margin-bottom: 15px;
    line-height: 2;
}

.about-image {
    background: var(--black-card);
    border: 1px solid rgba(212, 175, 55, 0.2);
    border-radius: 16px;
    height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 100px;
    position: relative;
    overflow: hidden;
}

.about-image::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at center, rgba(212, 175, 55, 0.1), transparent 70%);
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    margin: 60px 0;
}

.stat-item {
    text-align: center;
    padding: 30px;
    background: var(--black-card);
    border-radius: 12px;
    border: 1px solid rgba(212, 175, 55, 0.1);
}

.stat-number {
    font-size: 42px;
    font-weight: 900;
    background: var(--gradient-gold);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

/* === 联系我们 === */
.contact-section {
    padding-top: 120px;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
}

.contact-info-card {
    background: var(--black-card);
    border: 1px solid rgba(212, 175, 55, 0.15);
    border-radius: 16px;
    padding: 40px;
}

.contact-info-card h2 {
    font-size: 28px;
    color: var(--gold);
    margin-bottom: 30px;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 20px;
    background: rgba(212, 175, 55, 0.05);
    border-radius: 12px;
    margin-bottom: 15px;
    transition: var(--transition);
    cursor: pointer;
}

.contact-item:hover {
    background: rgba(212, 175, 55, 0.1);
    transform: translateX(5px);
}

.contact-item-icon {
    width: 50px;
    height: 50px;
    background: var(--gradient-gold);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    flex-shrink: 0;
}

.contact-item-text h4 {
    color: var(--gold);
    font-size: 16px;
    margin-bottom: 4px;
}

.contact-item-text p {
    color: var(--text-muted);
    font-size: 15px;
}

.contact-form-card {
    background: var(--black-card);
    border: 1px solid rgba(212, 175, 55, 0.15);
    border-radius: 16px;
    padding: 40px;
}

.contact-form-card h2 {
    font-size: 28px;
    color: var(--gold);
    margin-bottom: 30px;
}

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

.form-group label {
    display: block;
    color: var(--text-light);
    margin-bottom: 8px;
    font-size: 14px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 14px 18px;
    background: var(--gray-dark);
    border: 1px solid var(--gray);
    border-radius: 8px;
    color: var(--text-light);
    font-size: 15px;
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--gold);
    box-shadow: 0 0 0 3px rgba(212, 175, 55, 0.1);
}

.form-group textarea {
    height: 150px;
    resize: vertical;
}

/* === 悬浮按钮 === */
.floating-btns {
    position: fixed;
    right: 25px;
    bottom: 100px;
    z-index: 999;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.float-btn {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    position: relative;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
}

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

.float-btn-qq {
    background: linear-gradient(135deg, #4a90d9, #357abd);
    color: white;
}

.float-btn-qq:hover {
    box-shadow: 0 4px 25px rgba(74, 144, 217, 0.5);
}

.float-btn-phone {
    background: linear-gradient(135deg, #27ae60, #1e8449);
    color: white;
}

.float-btn-phone:hover {
    box-shadow: 0 4px 25px rgba(39, 174, 96, 0.5);
}

.float-btn-wechat {
    background: linear-gradient(135deg, #07c160, #06ad56);
    color: white;
}

.float-btn-wechat:hover {
    box-shadow: 0 4px 25px rgba(7, 193, 96, 0.5);
}

.float-btn-tooltip {
    position: absolute;
    right: 68px;
    background: var(--black-card);
    color: var(--text-light);
    padding: 8px 16px;
    border-radius: 8px;
    font-size: 13px;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: var(--transition);
    border: 1px solid rgba(212, 175, 55, 0.2);
}

.float-btn:hover .float-btn-tooltip {
    opacity: 1;
}

/* === 底部悬浮栏 === */
.bottom-bar {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 998;
    background: rgba(10, 10, 10, 0.95);
    backdrop-filter: blur(20px);
    border-top: 1px solid rgba(212, 175, 55, 0.2);
    padding: 12px 0;
}

.bottom-bar-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 40px;
}

.bottom-bar-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 24px;
    border-radius: 25px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    color: white;
}

.bottom-bar-btn-qq {
    background: linear-gradient(135deg, #4a90d9, #357abd);
}

.bottom-bar-btn-phone {
    background: linear-gradient(135deg, #27ae60, #1e8449);
}

.bottom-bar-btn-wechat {
    background: linear-gradient(135deg, #07c160, #06ad56);
}

.bottom-bar-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
}

/* === 页脚 === */
.footer {
    background: var(--black-card);
    border-top: 1px solid rgba(212, 175, 55, 0.15);
    padding: 60px 30px 30px;
}

.footer-inner {
    max-width: 1200px;
    margin: 0 auto;
}

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

.footer-brand h3 {
    font-size: 24px;
    background: var(--gradient-gold);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 15px;
}

.footer-brand p {
    color: var(--text-muted);
    font-size: 14px;
    line-height: 1.8;
}

.footer-col h4 {
    color: var(--gold);
    font-size: 16px;
    margin-bottom: 20px;
    letter-spacing: 1px;
}

.footer-col a {
    display: block;
    color: var(--text-muted);
    font-size: 14px;
    padding: 5px 0;
    transition: var(--transition);
}

.footer-col a:hover {
    color: var(--gold);
    padding-left: 5px;
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid var(--gray);
    color: var(--text-muted);
    font-size: 13px;
}

/* === 面包屑导航 === */
.breadcrumb {
    padding: 100px 30px 20px;
    background: var(--black-light);
    border-bottom: 1px solid rgba(212, 175, 55, 0.1);
}

.breadcrumb-inner {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 14px;
    color: var(--text-muted);
}

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

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

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

/* === 栏目页头部 === */
.page-header {
    padding: 120px 30px 50px;
    text-align: center;
    background: var(--black-light);
    position: relative;
}

.page-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(ellipse at center top, rgba(212, 175, 55, 0.08), transparent 60%);
}

.page-header h1 {
    position: relative;
    font-size: 42px;
    background: var(--gradient-gold);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 15px;
    letter-spacing: 3px;
}

.page-header p {
    position: relative;
    color: var(--text-muted);
    font-size: 16px;
}

/* === 文章列表页 === */
.articles-list {
    max-width: 900px;
    margin: 0 auto;
    padding: 60px 30px;
}

.article-list-item {
    background: var(--black-card);
    border: 1px solid rgba(212, 175, 55, 0.1);
    border-radius: 12px;
    padding: 30px;
    margin-bottom: 25px;
    transition: var(--transition);
}

.article-list-item:hover {
    border-color: rgba(212, 175, 55, 0.3);
    transform: translateX(5px);
}

.article-list-item h3 {
    font-size: 22px;
    margin-bottom: 10px;
}

.article-list-item h3 a {
    color: var(--gold);
}

.article-list-item h3 a:hover {
    color: var(--gold-light);
}

.article-list-item .excerpt {
    color: var(--text-muted);
    font-size: 14px;
    line-height: 1.8;
    margin-bottom: 15px;
}

.article-list-item .read-more {
    color: var(--gold);
    font-size: 14px;
    font-weight: 600;
}

/* === 返回按钮 === */
.back-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--gold);
    font-size: 15px;
    margin-bottom: 30px;
    padding: 10px 20px;
    border: 1px solid rgba(212, 175, 55, 0.3);
    border-radius: 8px;
    transition: var(--transition);
}

.back-btn:hover {
    background: rgba(212, 175, 55, 0.1);
    color: var(--gold-light);
}

/* === 复制提示 === */
.copy-toast {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0.8);
    background: rgba(10, 10, 10, 0.95);
    color: var(--gold);
    padding: 20px 40px;
    border-radius: 12px;
    font-size: 16px;
    z-index: 9999;
    opacity: 0;
    pointer-events: none;
    transition: all 0.3s ease;
    border: 1px solid rgba(212, 175, 55, 0.3);
    text-align: center;
}

.copy-toast.show {
    opacity: 1;
    transform: translate(-50%, -50%) scale(1);
}

/* === 响应式设计 === */
@media (max-width: 1024px) {
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .about-content {
        grid-template-columns: 1fr;
    }
    
    .about-stats {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .header-inner {
        height: 70px;
    }
    
    .nav {
        display: none;
        position: absolute;
        top: 70px;
        left: 0;
        right: 0;
        background: rgba(10, 10, 10, 0.98);
        flex-direction: column;
        padding: 20px;
        border-bottom: 1px solid rgba(212, 175, 55, 0.2);
    }
    
    .nav.open {
        display: flex;
    }
    
    .menu-toggle {
        display: flex;
    }
    
    .hero h1 {
        font-size: 32px;
        letter-spacing: 2px;
    }
    
    .hero-subtitle {
        font-size: 16px;
        letter-spacing: 3px;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .articles-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
    }
    
    .about-stats {
        grid-template-columns: 1fr 1fr;
    }
    
    .section {
        padding: 60px 20px;
    }
    
    .section-title h2 {
        font-size: 28px;
    }
    
    .floating-btns {
        right: 15px;
        bottom: 80px;
    }
    
    .float-btn {
        width: 48px;
        height: 48px;
        font-size: 20px;
    }
    
    .bottom-bar-btn span.btn-text {
        display: none;
    }
    
    .bottom-bar-inner {
        gap: 15px;
    }
    
    .article-detail h1 {
        font-size: 26px;
    }
    
    .page-header h1 {
        font-size: 30px;
    }
}

/* === 加载动画 === */
.page-loader {
    position: fixed;
    inset: 0;
    background: var(--black);
    z-index: 99999;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: opacity 0.5s ease;
}

.page-loader.hidden {
    opacity: 0;
    pointer-events: none;
}

.loader-spinner {
    width: 50px;
    height: 50px;
    border: 3px solid var(--gray);
    border-top-color: var(--gold);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

/* === 装饰元素 === */
.gold-line {
    width: 60px;
    height: 2px;
    background: var(--gradient-gold);
    margin: 15px 0;
}

.text-gold {
    color: var(--gold);
}

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

.mt-20 { margin-top: 20px; }
.mt-40 { margin-top: 40px; }
.mb-20 { margin-bottom: 20px; }
.mb-40 { margin-bottom: 40px; }

/* === 暗色图片占位 === */
.img-placeholder {
    background: linear-gradient(135deg, var(--gray-dark), var(--gray));
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    font-size: 40px;
    border-radius: 12px;
    position: relative;
    overflow: hidden;
}

.img-placeholder::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 30% 30%, rgba(212, 175, 55, 0.05), transparent 60%);
}

/* === 时间线样式 === */
.timeline {
    position: relative;
    padding-left: 40px;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 15px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--gradient-gold);
}

.timeline-item {
    position: relative;
    margin-bottom: 40px;
    padding: 25px;
    background: var(--black-card);
    border-radius: 12px;
    border: 1px solid rgba(212, 175, 55, 0.1);
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: -33px;
    top: 30px;
    width: 12px;
    height: 12px;
    background: var(--gold);
    border-radius: 50%;
    border: 3px solid var(--black);
}

.timeline-item h3 {
    color: var(--gold);
    font-size: 20px;
    margin-bottom: 10px;
}

.timeline-item .date {
    color: var(--text-muted);
    font-size: 13px;
    margin-bottom: 10px;
}

/* === 标签 === */
.tag {
    display: inline-block;
    padding: 4px 12px;
    background: rgba(212, 175, 55, 0.1);
    color: var(--gold);
    border-radius: 20px;
    font-size: 12px;
    margin: 3px;
    border: 1px solid rgba(212, 175, 55, 0.2);
}

/* === 图片画廊 === */
.gallery-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.gallery-item {
    height: 250px;
    border-radius: 12px;
    overflow: hidden;
    position: relative;
    cursor: pointer;
}

.gallery-item .img-placeholder {
    height: 100%;
    border-radius: 12px;
    transition: var(--transition);
}

.gallery-item:hover .img-placeholder {
    transform: scale(1.05);
}

.gallery-item .overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition);
    border-radius: 12px;
}

.gallery-item:hover .overlay {
    opacity: 1;
}

@media (max-width: 768px) {
    .gallery-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}