/**
 * 天辰财务管理公司 - 讨债要债专业服务平台
 * 主题色：深海蓝 #1976D2
 * 辅助色：金色 #FFD700
 * 强调色：珊瑚红 #FF5252
 */

/* ==================== CSS变量定义 ==================== */
:root {
    /* 主题色 */
    --primary-color: #1976D2;
    --primary-dark: #0D47A1;
    --primary-light: #64B5F6;
    --primary-gradient: linear-gradient(135deg, #1976D2 0%, #0D47A1 100%);
    
    /* 辅助色 */
    --accent-gold: #FFD700;
    --accent-gold-light: #FFF8E1;
    --accent-red: #FF5252;
    --accent-red-dark: #D32F2F;
    
    /* 背景色 */
    --bg-white: #FFFFFF;
    --bg-light: #F5F7FA;
    --bg-dark: #1A237E;
    --bg-gradient: linear-gradient(135deg, #f5f7fa 0%, #e4e8ec 100%);
    
    /* 文字色 */
    --text-primary: #212121;
    --text-secondary: #757575;
    --text-light: #9E9E9E;
    --text-white: #FFFFFF;
    
    /* 边框色 */
    --border-color: #E0E0E0;
    --border-light: #EEEEEE;
    
    /* 阴影 */
    --shadow-sm: 0 2px 8px rgba(0,0,0,0.08);
    --shadow-md: 0 4px 20px rgba(0,0,0,0.12);
    --shadow-lg: 0 8px 40px rgba(0,0,0,0.15);
    --shadow-primary: 0 4px 20px rgba(25,118,210,0.3);
    
    /* 圆角 */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 50%;
    
    /* 间距 */
    --space-xs: 4px;
    --space-sm: 8px;
    --space-md: 16px;
    --space-lg: 24px;
    --space-xl: 32px;
    --space-xxl: 48px;
    --space-xxxl: 64px;
    
    /* 字体 */
    --font-family: 'Microsoft YaHei', 'PingFang SC', 'Helvetica Neue', Arial, sans-serif;
    --font-size-xs: 12px;
    --font-size-sm: 14px;
    --font-size-md: 16px;
    --font-size-lg: 18px;
    --font-size-xl: 20px;
    --font-size-xxl: 24px;
    --font-size-xxxl: 32px;
    --font-size-display: 48px;
}

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

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

body {
    font-family: var(--font-family);
    font-size: var(--font-size-md);
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-white);
    overflow-x: hidden;
}

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

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

ul, ol {
    list-style: none;
}

button {
    cursor: pointer;
    border: none;
    background: none;
    font-family: inherit;
}

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

/* ==================== 公共组件样式 ==================== */

/* 容器 */
.tianchen-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-md);
}

.tianchen-container-fluid {
    width: 100%;
    padding: 0 var(--space-md);
}

/* 按钮样式 */
.tianchen-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 32px;
    font-size: var(--font-size-md);
    font-weight: 600;
    border-radius: var(--radius-md);
    transition: all 0.3s ease;
    cursor: pointer;
    border: none;
}

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

.tianchen-btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 24px rgba(25,118,210,0.4);
}

.tianchen-btn-gold {
    background: linear-gradient(135deg, #FFD700 0%, #FFA000 100%);
    color: var(--text-primary);
    box-shadow: 0 4px 16px rgba(255,215,0,0.4);
}

.tianchen-btn-gold:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 24px rgba(255,215,0,0.5);
}

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

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

.tianchen-btn-lg {
    padding: 16px 48px;
    font-size: var(--font-size-lg);
}

/* 标题样式 */
.tianchen-section-title {
    text-align: center;
    margin-bottom: var(--space-xxl);
}

.tianchen-section-title h2 {
    font-size: var(--font-size-xxxl);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--space-sm);
    position: relative;
    display: inline-block;
}

.tianchen-section-title h2::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: var(--primary-gradient);
    border-radius: var(--radius-sm);
}

.tianchen-section-title p {
    font-size: var(--font-size-md);
    color: var(--text-secondary);
    margin-top: var(--space-lg);
}

/* 卡片样式 */
.tianchen-card {
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
    overflow: hidden;
}

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

/* 标签样式 */
.tianchen-tag {
    display: inline-block;
    padding: 4px 12px;
    font-size: var(--font-size-xs);
    font-weight: 500;
    border-radius: var(--radius-full);
    background: var(--primary-light);
    color: var(--primary-dark);
}

.tianchen-tag-gold {
    background: var(--accent-gold-light);
    color: #F57C00;
}

/* ==================== 头部样式 ==================== */
.tianchen-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: var(--bg-white);
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
}

.tianchen-header.scrolled {
    box-shadow: var(--shadow-md);
}

.tianchen-topbar {
    background: var(--bg-dark);
    color: var(--text-white);
    padding: var(--space-sm) 0;
    font-size: var(--font-size-sm);
}

.tianchen-topbar-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.tianchen-topbar-left {
    display: flex;
    align-items: center;
    gap: var(--space-lg);
}

.tianchen-topbar-item {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.tianchen-topbar-item i {
    color: var(--accent-gold);
}

.tianchen-topbar-right {
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

.tianchen-topbar-phone {
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: var(--accent-gold);
}

.tianchen-navbar {
    padding: var(--space-md) 0;
}

.tianchen-navbar-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.tianchen-logo {
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

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

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

.tianchen-logo-text .name {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--primary-color);
}

.tianchen-logo-text .slogan {
    font-size: var(--font-size-xs);
    color: var(--text-secondary);
}

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

.tianchen-nav-item {
    position: relative;
}

.tianchen-nav-link {
    font-size: var(--font-size-md);
    font-weight: 500;
    color: var(--text-primary);
    padding: var(--space-sm) 0;
    position: relative;
}

.tianchen-nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-gradient);
    transition: width 0.3s ease;
}

.tianchen-nav-link:hover::after,
.tianchen-nav-link.active::after {
    width: 100%;
}

.tianchen-nav-link:hover,
.tianchen-nav-link.active {
    color: var(--primary-color);
}

.tianchen-nav-cta {
    background: var(--accent-red);
    color: var(--text-white);
    padding: 10px 24px;
    border-radius: var(--radius-md);
    font-weight: 600;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { box-shadow: 0 0 0 0 rgba(255,82,82,0.4); }
    50% { box-shadow: 0 0 0 10px rgba(255,82,82,0); }
}

.tianchen-nav-cta:hover {
    background: var(--accent-red-dark);
    transform: translateY(-2px);
}

/* 移动端菜单按钮 */
.tianchen-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: var(--space-sm);
}

.tianchen-menu-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--primary-color);
    transition: all 0.3s ease;
}

/* ==================== 底部样式 ==================== */
.tianchen-footer {
    background: var(--bg-dark);
    color: var(--text-white);
    padding-top: var(--space-xxxl);
}

.tianchen-footer-main {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: var(--space-xxl);
    padding-bottom: var(--space-xxl);
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.tianchen-footer-brand .logo {
    font-size: var(--font-size-xxl);
    font-weight: 700;
    color: var(--accent-gold);
    margin-bottom: var(--space-md);
}

.tianchen-footer-brand .desc {
    font-size: var(--font-size-sm);
    color: rgba(255,255,255,0.7);
    line-height: 1.8;
    margin-bottom: var(--space-lg);
}

.tianchen-footer-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--space-lg);
    color: var(--accent-gold);
}

.tianchen-footer-links {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.tianchen-footer-link {
    font-size: var(--font-size-sm);
    color: rgba(255,255,255,0.7);
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.tianchen-footer-link::before {
    content: '>';
    font-size: var(--font-size-xs);
    color: var(--accent-gold);
}

.tianchen-footer-link:hover {
    color: var(--accent-gold);
    padding-left: var(--space-sm);
}

.tianchen-footer-contact-item {
    display: flex;
    align-items: flex-start;
    gap: var(--space-md);
    margin-bottom: var(--space-md);
}

.tianchen-footer-contact-item i {
    color: var(--accent-gold);
    margin-top: 3px;
}

.tianchen-footer-contact-item .label {
    font-size: var(--font-size-xs);
    color: rgba(255,255,255,0.5);
}

.tianchen-footer-contact-item .value {
    font-size: var(--font-size-md);
    font-weight: 600;
}

.tianchen-footer-qr {
    display: flex;
    gap: var(--space-lg);
    margin-top: var(--space-lg);
}

.tianchen-footer-qr-item {
    text-align: center;
}

.tianchen-footer-qr-item img {
    width: 100px;
    height: 100px;
    border-radius: var(--radius-md);
    margin-bottom: var(--space-sm);
}

.tianchen-footer-qr-item span {
    font-size: var(--font-size-xs);
    color: rgba(255,255,255,0.6);
}

.tianchen-footer-friend {
    padding: var(--space-lg) 0;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.tianchen-footer-friend-title {
    font-size: var(--font-size-sm);
    color: rgba(255,255,255,0.5);
    margin-bottom: var(--space-md);
}

.tianchen-footer-friend-links {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-md);
}

.tianchen-footer-friend-link {
    font-size: var(--font-size-sm);
    color: rgba(255,255,255,0.6);
}

.tianchen-footer-friend-link:hover {
    color: var(--accent-gold);
}

.tianchen-footer-bottom {
    padding: var(--space-lg) 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: var(--font-size-sm);
    color: rgba(255,255,255,0.5);
}

.tianchen-footer-bottom-links {
    display: flex;
    gap: var(--space-lg);
}

.tianchen-footer-bottom-links a:hover {
    color: var(--accent-gold);
}

/* ==================== 首页轮播图 ==================== */
.tianchen-hero {
    position: relative;
    height: 600px;
    overflow: hidden;
    margin-top: 110px;
}

.tianchen-slider {
    position: relative;
    height: 100%;
}

.tianchen-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    visibility: hidden;
    transition: all 0.8s ease;
}

.tianchen-slide.active {
    opacity: 1;
    visibility: visible;
}

.tianchen-slide-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
}

.tianchen-slide-bg::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, rgba(13,71,161,0.9) 0%, rgba(13,71,161,0.6) 50%, rgba(13,71,161,0.3) 100%);
}

.tianchen-slide-content {
    position: relative;
    z-index: 2;
    height: 100%;
    display: flex;
    align-items: center;
}

.tianchen-slide-inner {
    max-width: 600px;
    color: var(--text-white);
}

.tianchen-slide-tag {
    display: inline-block;
    padding: 6px 16px;
    background: var(--accent-gold);
    color: var(--text-primary);
    font-size: var(--font-size-sm);
    font-weight: 600;
    border-radius: var(--radius-full);
    margin-bottom: var(--space-lg);
}

.tianchen-slide-title {
    font-size: var(--font-size-display);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--space-lg);
}

.tianchen-slide-title span {
    color: var(--accent-gold);
}

.tianchen-slide-desc {
    font-size: var(--font-size-lg);
    line-height: 1.8;
    margin-bottom: var(--space-xl);
    opacity: 0.9;
}

.tianchen-slide-btns {
    display: flex;
    gap: var(--space-md);
}

.tianchen-slider-dots {
    position: absolute;
    bottom: var(--space-xl);
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: var(--space-sm);
    z-index: 10;
}

.tianchen-slider-dot {
    width: 12px;
    height: 12px;
    border-radius: var(--radius-full);
    background: rgba(255,255,255,0.4);
    cursor: pointer;
    transition: all 0.3s ease;
}

.tianchen-slider-dot.active {
    background: var(--accent-gold);
    width: 32px;
    border-radius: var(--radius-full);
}

/* ==================== 首页数据统计 ==================== */
.tianchen-stats {
    background: var(--primary-gradient);
    padding: var(--space-xxl) 0;
    position: relative;
    overflow: hidden;
}

.tianchen-stats::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255,255,255,0.1) 1px, transparent 1px);
    background-size: 30px 30px;
    opacity: 0.3;
}

.tianchen-stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-xl);
    position: relative;
    z-index: 1;
}

.tianchen-stat-item {
    text-align: center;
    color: var(--text-white);
    padding: var(--space-lg);
    border-radius: var(--radius-lg);
    background: rgba(255,255,255,0.1);
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
}

.tianchen-stat-item:hover {
    transform: translateY(-4px);
    background: rgba(255,255,255,0.15);
}

.tianchen-stat-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto var(--space-md);
    background: var(--accent-gold);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-xl);
    color: var(--primary-dark);
}

.tianchen-stat-number {
    font-size: var(--font-size-xxxl);
    font-weight: 700;
    margin-bottom: var(--space-sm);
}

.tianchen-stat-number span {
    color: var(--accent-gold);
}

.tianchen-stat-label {
    font-size: var(--font-size-md);
    opacity: 0.9;
}

/* ==================== 首页业务介绍 ==================== */
.tianchen-services {
    padding: var(--space-xxxl) 0;
    background: var(--bg-light);
}

.tianchen-services-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-xl);
}

.tianchen-service-card {
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    text-align: center;
    box-shadow: var(--shadow-sm);
    transition: all 0.4s ease;
    position: relative;
    overflow: hidden;
}

.tianchen-service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--primary-gradient);
    transform: scaleX(0);
    transition: transform 0.4s ease;
}

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

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

.tianchen-service-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--space-lg);
    background: var(--bg-light);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-xxl);
    color: var(--primary-color);
    transition: all 0.3s ease;
}

.tianchen-service-card:hover .tianchen-service-icon {
    background: var(--primary-gradient);
    color: var(--text-white);
}

.tianchen-service-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--space-md);
    color: var(--text-primary);
}

.tianchen-service-desc {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    line-height: 1.8;
}

/* ==================== 首页优势介绍 ==================== */
.tianchen-advantages {
    padding: var(--space-xxxl) 0;
    background: var(--bg-white);
}

.tianchen-advantages-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-xxxl);
    align-items: center;
}

.tianchen-advantages-left {
    position: relative;
}

.tianchen-advantages-image {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.tianchen-advantages-image img {
    width: 100%;
    height: auto;
}

.tianchen-advantages-badge {
    position: absolute;
    bottom: -20px;
    right: -20px;
    background: var(--primary-gradient);
    color: var(--text-white);
    padding: var(--space-lg);
    border-radius: var(--radius-lg);
    text-align: center;
    box-shadow: var(--shadow-md);
}

.tianchen-advantages-badge .number {
    font-size: var(--font-size-xxxl);
    font-weight: 700;
    color: var(--accent-gold);
}

.tianchen-advantages-badge .text {
    font-size: var(--font-size-sm);
}

.tianchen-advantages-right h3 {
    font-size: var(--font-size-xxl);
    font-weight: 700;
    margin-bottom: var(--space-lg);
    color: var(--text-primary);
}

.tianchen-advantages-right > p {
    font-size: var(--font-size-md);
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: var(--space-xl);
}

.tianchen-advantage-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
}

.tianchen-advantage-item {
    display: flex;
    align-items: flex-start;
    gap: var(--space-md);
    padding: var(--space-md);
    background: var(--bg-light);
    border-radius: var(--radius-md);
    transition: all 0.3s ease;
}

.tianchen-advantage-item:hover {
    background: var(--primary-light);
    transform: translateX(8px);
}

.tianchen-advantage-icon {
    width: 48px;
    height: 48px;
    background: var(--primary-gradient);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-white);
    font-size: var(--font-size-lg);
    flex-shrink: 0;
}

.tianchen-advantage-content h4 {
    font-size: var(--font-size-md);
    font-weight: 600;
    margin-bottom: var(--space-xs);
}

.tianchen-advantage-content p {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

/* ==================== 首页流程介绍 ==================== */
.tianchen-process {
    padding: var(--space-xxxl) 0;
    background: var(--bg-gradient);
}

.tianchen-process-steps {
    display: flex;
    justify-content: space-between;
    position: relative;
}

.tianchen-process-steps::before {
    content: '';
    position: absolute;
    top: 40px;
    left: 10%;
    right: 10%;
    height: 2px;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-gold));
}

.tianchen-process-step {
    flex: 1;
    text-align: center;
    position: relative;
    padding: 0 var(--space-md);
}

.tianchen-process-step-num {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--space-lg);
    background: var(--bg-white);
    border: 3px solid var(--primary-color);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-xxl);
    font-weight: 700;
    color: var(--primary-color);
    position: relative;
    z-index: 1;
    transition: all 0.3s ease;
}

.tianchen-process-step:hover .tianchen-process-step-num {
    background: var(--primary-gradient);
    color: var(--text-white);
    transform: scale(1.1);
}

.tianchen-process-step-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--space-sm);
}

.tianchen-process-step-desc {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

/* ==================== 首页城市站点 ==================== */
.tianchen-cities {
    padding: var(--space-xxxl) 0;
    background: var(--bg-white);
}

.tianchen-cities-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: var(--space-md);
}

.tianchen-city-item {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-md) var(--space-lg);
    background: var(--bg-light);
    border-radius: var(--radius-md);
    font-size: var(--font-size-md);
    font-weight: 500;
    color: var(--text-primary);
    transition: all 0.3s ease;
    border: 1px solid transparent;
}

.tianchen-city-item:hover {
    background: var(--primary-gradient);
    color: var(--text-white);
    transform: translateY(-2px);
    box-shadow: var(--shadow-primary);
}

.tianchen-city-item.active {
    background: var(--primary-gradient);
    color: var(--text-white);
}

/* ==================== 首页最新资讯 ==================== */
.tianchen-news {
    padding: var(--space-xxxl) 0;
    background: var(--bg-light);
}

.tianchen-news-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-xl);
}

.tianchen-news-card {
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
}

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

.tianchen-news-image {
    position: relative;
    height: 200px;
    overflow: hidden;
}

.tianchen-news-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.tianchen-news-card:hover .tianchen-news-image img {
    transform: scale(1.1);
}

.tianchen-news-tag {
    position: absolute;
    top: var(--space-md);
    left: var(--space-md);
    background: var(--primary-gradient);
    color: var(--text-white);
    padding: 4px 12px;
    border-radius: var(--radius-full);
    font-size: var(--font-size-xs);
    font-weight: 500;
}

.tianchen-news-content {
    padding: var(--space-lg);
}

.tianchen-news-date {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: var(--font-size-sm);
    color: var(--text-light);
    margin-bottom: var(--space-sm);
}

.tianchen-news-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    line-height: 1.5;
    margin-bottom: var(--space-md);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    transition: color 0.3s ease;
}

.tianchen-news-card:hover .tianchen-news-title {
    color: var(--primary-color);
}

.tianchen-news-desc {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    line-height: 1.6;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* ==================== 首页CTA区域 ==================== */
.tianchen-cta {
    padding: var(--space-xxxl) 0;
    background: var(--primary-gradient);
    position: relative;
    overflow: hidden;
}

.tianchen-cta::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><circle cx="50" cy="50" r="40" fill="none" stroke="rgba(255,255,255,0.1)" stroke-width="0.5"/></svg>');
    background-size: 100px 100px;
    opacity: 0.5;
}

.tianchen-cta-inner {
    position: relative;
    z-index: 1;
    text-align: center;
    color: var(--text-white);
}

.tianchen-cta h2 {
    font-size: var(--font-size-xxxl);
    font-weight: 700;
    margin-bottom: var(--space-md);
}

.tianchen-cta p {
    font-size: var(--font-size-lg);
    opacity: 0.9;
    margin-bottom: var(--space-xl);
}

.tianchen-cta-btns {
    display: flex;
    justify-content: center;
    gap: var(--space-md);
}

/* ==================== 资讯列表页 ==================== */
.tianchen-page-header {
    background: var(--primary-gradient);
    padding: 160px 0 80px;
    text-align: center;
    color: var(--text-white);
}

.tianchen-page-header h1 {
    font-size: var(--font-size-xxxl);
    font-weight: 700;
    margin-bottom: var(--space-md);
}

.tianchen-page-header .breadcrumb {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--space-sm);
    font-size: var(--font-size-sm);
    opacity: 0.8;
}

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

.tianchen-news-list {
    padding: var(--space-xxxl) 0;
    background: var(--bg-light);
}

.tianchen-news-list-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-xl);
}

.tianchen-news-list-item {
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
}

.tianchen-news-list-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.tianchen-news-list-image {
    height: 220px;
    overflow: hidden;
}

.tianchen-news-list-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.tianchen-news-list-item:hover .tianchen-news-list-image img {
    transform: scale(1.1);
}

.tianchen-news-list-content {
    padding: var(--space-lg);
}

.tianchen-news-list-meta {
    display: flex;
    align-items: center;
    gap: var(--space-lg);
    margin-bottom: var(--space-md);
    font-size: var(--font-size-sm);
    color: var(--text-light);
}

.tianchen-news-list-meta span {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
}

.tianchen-news-list-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    line-height: 1.5;
    margin-bottom: var(--space-md);
    transition: color 0.3s ease;
}

.tianchen-news-list-item:hover .tianchen-news-list-title {
    color: var(--primary-color);
}

.tianchen-news-list-desc {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    line-height: 1.6;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* 分页 */
.tianchen-pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--space-sm);
    margin-top: var(--space-xxl);
}

.tianchen-pagination a,
.tianchen-pagination span {
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 40px;
    height: 40px;
    padding: 0 var(--space-md);
    background: var(--bg-white);
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    color: var(--text-primary);
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
}

.tianchen-pagination a:hover,
.tianchen-pagination .current {
    background: var(--primary-gradient);
    color: var(--text-white);
}

/* ==================== 文章详情页 ==================== */
.tianchen-news-detail {
    padding: var(--space-xxxl) 0;
    background: var(--bg-light);
}

.tianchen-news-detail-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--space-xxl);
}

.tianchen-news-detail-main {
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    padding: var(--space-xxl);
    box-shadow: var(--shadow-sm);
}

.tianchen-news-detail-header {
    margin-bottom: var(--space-xl);
    padding-bottom: var(--space-xl);
    border-bottom: 1px solid var(--border-light);
}

.tianchen-news-detail-title {
    font-size: var(--font-size-xxxl);
    font-weight: 700;
    line-height: 1.4;
    margin-bottom: var(--space-lg);
}

.tianchen-news-detail-meta {
    display: flex;
    align-items: center;
    gap: var(--space-lg);
    font-size: var(--font-size-sm);
    color: var(--text-light);
}

.tianchen-news-detail-meta span {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
}

.tianchen-news-detail-content {
    font-size: var(--font-size-md);
    line-height: 1.8;
    color: var(--text-primary);
}

.tianchen-news-detail-content p {
    margin-bottom: var(--space-lg);
}

.tianchen-news-detail-content h2,
.tianchen-news-detail-content h3 {
    font-weight: 600;
    margin: var(--space-xl) 0 var(--space-md);
    color: var(--primary-dark);
}

.tianchen-news-detail-content img {
    max-width: 100%;
    border-radius: var(--radius-md);
    margin: var(--space-lg) 0;
}

.tianchen-news-detail-tags {
    margin-top: var(--space-xl);
    padding-top: var(--space-xl);
    border-top: 1px solid var(--border-light);
}

.tianchen-news-detail-tags-title {
    font-size: var(--font-size-sm);
    font-weight: 600;
    margin-bottom: var(--space-md);
}

.tianchen-news-detail-tags-list {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
}

.tianchen-news-detail-tag {
    padding: 6px 16px;
    background: var(--bg-light);
    border-radius: var(--radius-full);
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    transition: all 0.3s ease;
}

.tianchen-news-detail-tag:hover {
    background: var(--primary-gradient);
    color: var(--text-white);
}

/* 侧边栏 */
.tianchen-sidebar {
    display: flex;
    flex-direction: column;
    gap: var(--space-xl);
}

.tianchen-sidebar-widget {
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    box-shadow: var(--shadow-sm);
}

.tianchen-sidebar-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--space-lg);
    padding-bottom: var(--space-md);
    border-bottom: 2px solid var(--primary-color);
}

.tianchen-sidebar-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.tianchen-sidebar-item {
    display: flex;
    gap: var(--space-md);
    padding-bottom: var(--space-md);
    border-bottom: 1px solid var(--border-light);
}

.tianchen-sidebar-item:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.tianchen-sidebar-item-image {
    width: 80px;
    height: 60px;
    border-radius: var(--radius-sm);
    overflow: hidden;
    flex-shrink: 0;
}

.tianchen-sidebar-item-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.tianchen-sidebar-item-content {
    flex: 1;
}

.tianchen-sidebar-item-title {
    font-size: var(--font-size-sm);
    font-weight: 500;
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    transition: color 0.3s ease;
}

.tianchen-sidebar-item:hover .tianchen-sidebar-item-title {
    color: var(--primary-color);
}

.tianchen-sidebar-item-date {
    font-size: var(--font-size-xs);
    color: var(--text-light);
    margin-top: var(--space-xs);
}

/* ==================== 关于我们页 ==================== */
.tianchen-about-intro {
    padding: var(--space-xxxl) 0;
    background: var(--bg-white);
}

.tianchen-about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-xxxl);
    align-items: center;
}

.tianchen-about-image {
    position: relative;
}

.tianchen-about-image-main {
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.tianchen-about-image-main img {
    width: 100%;
    height: auto;
}

.tianchen-about-image-sub {
    position: absolute;
    bottom: -30px;
    right: -30px;
    width: 200px;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    border: 4px solid var(--bg-white);
}

.tianchen-about-image-sub img {
    width: 100%;
    height: auto;
}

.tianchen-about-content h2 {
    font-size: var(--font-size-xxl);
    font-weight: 700;
    margin-bottom: var(--space-lg);
    color: var(--text-primary);
}

.tianchen-about-content > p {
    font-size: var(--font-size-md);
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: var(--space-lg);
}

.tianchen-about-features {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-md);
    margin-top: var(--space-xl);
}

.tianchen-about-feature {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-md);
    background: var(--bg-light);
    border-radius: var(--radius-md);
}

.tianchen-about-feature i {
    width: 40px;
    height: 40px;
    background: var(--primary-gradient);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-white);
    font-size: var(--font-size-md);
}

.tianchen-about-feature span {
    font-weight: 600;
}

/* 企业文化 */
.tianchen-culture {
    padding: var(--space-xxxl) 0;
    background: var(--bg-light);
}

.tianchen-culture-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-xl);
}

.tianchen-culture-card {
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    text-align: center;
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.tianchen-culture-card::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--primary-gradient);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

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

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

.tianchen-culture-icon {
    width: 70px;
    height: 70px;
    margin: 0 auto var(--space-lg);
    background: var(--primary-light);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-xl);
    color: var(--primary-color);
}

.tianchen-culture-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--space-sm);
}

.tianchen-culture-desc {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

/* 荣誉资质 */
.tianchen-honors {
    padding: var(--space-xxxl) 0;
    background: var(--bg-white);
}

.tianchen-honors-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: var(--space-lg);
}

.tianchen-honor-item {
    text-align: center;
    padding: var(--space-lg);
    border: 2px solid var(--border-light);
    border-radius: var(--radius-lg);
    transition: all 0.3s ease;
}

.tianchen-honor-item:hover {
    border-color: var(--primary-color);
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.tianchen-honor-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto var(--space-md);
    background: var(--accent-gold-light);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-xl);
    color: var(--accent-gold);
}

.tianchen-honor-title {
    font-size: var(--font-size-sm);
    font-weight: 600;
}

/* ==================== 联系我们页 ==================== */
.tianchen-contact-section {
    padding: var(--space-xxxl) 0;
    background: var(--bg-light);
}

.tianchen-contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: var(--space-xxxl);
}

.tianchen-contact-info {
    display: flex;
    flex-direction: column;
    gap: var(--space-xl);
}

.tianchen-contact-card {
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    box-shadow: var(--shadow-sm);
    display: flex;
    align-items: flex-start;
    gap: var(--space-lg);
    transition: all 0.3s ease;
}

.tianchen-contact-card:hover {
    transform: translateX(8px);
    box-shadow: var(--shadow-md);
}

.tianchen-contact-icon {
    width: 60px;
    height: 60px;
    background: var(--primary-gradient);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-white);
    font-size: var(--font-size-xl);
    flex-shrink: 0;
}

.tianchen-contact-content h4 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--space-sm);
}

.tianchen-contact-content p {
    font-size: var(--font-size-md);
    color: var(--text-secondary);
}

.tianchen-contact-content .phone {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--primary-color);
}

.tianchen-contact-form-wrapper {
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    padding: var(--space-xxl);
    box-shadow: var(--shadow-md);
}

.tianchen-contact-form-title {
    font-size: var(--font-size-xxl);
    font-weight: 700;
    margin-bottom: var(--space-sm);
    text-align: center;
}

.tianchen-contact-form-subtitle {
    font-size: var(--font-size-md);
    color: var(--text-secondary);
    text-align: center;
    margin-bottom: var(--space-xl);
}

.tianchen-form-group {
    margin-bottom: var(--space-lg);
}

.tianchen-form-label {
    display: block;
    font-size: var(--font-size-sm);
    font-weight: 500;
    margin-bottom: var(--space-sm);
    color: var(--text-primary);
}

.tianchen-form-input,
.tianchen-form-textarea {
    width: 100%;
    padding: 14px 18px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: var(--font-size-md);
    transition: all 0.3s ease;
    background: var(--bg-white);
}

.tianchen-form-input:focus,
.tianchen-form-textarea:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(25,118,210,0.1);
}

.tianchen-form-textarea {
    min-height: 120px;
    resize: vertical;
}

.tianchen-form-submit {
    width: 100%;
    padding: 16px;
    background: var(--primary-gradient);
    color: var(--text-white);
    border: none;
    border-radius: var(--radius-md);
    font-size: var(--font-size-lg);
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.tianchen-form-submit:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-primary);
}

.tianchen-form-submit:disabled {
    opacity: 0.7;
    cursor: not-allowed;
    transform: none;
}

.tianchen-form-tips {
    text-align: center;
    font-size: var(--font-size-sm);
    color: var(--text-light);
    margin-top: var(--space-md);
}

/* 地图区域 */
.tianchen-map {
    height: 400px;
    background: var(--bg-light);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.tianchen-map iframe {
    width: 100%;
    height: 100%;
    border: none;
}

/* ==================== 常见问题 ==================== */
.tianchen-faq {
    padding: var(--space-xxxl) 0;
    background: var(--bg-white);
}

.tianchen-faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.tianchen-faq-item {
    border-bottom: 1px solid var(--border-light);
}

.tianchen-faq-question {
    width: 100%;
    padding: var(--space-lg) 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: var(--font-size-md);
    font-weight: 500;
    text-align: left;
    transition: color 0.3s ease;
}

.tianchen-faq-question:hover {
    color: var(--primary-color);
}

.tianchen-faq-question i {
    transition: transform 0.3s ease;
}

.tianchen-faq-item.active .tianchen-faq-question i {
    transform: rotate(180deg);
}

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

.tianchen-faq-item.active .tianchen-faq-answer {
    max-height: 200px;
}

.tianchen-faq-answer-inner {
    padding-bottom: var(--space-lg);
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    line-height: 1.8;
}

/* ==================== 响应式设计 ==================== */
@media (max-width: 1199px) {
    .tianchen-container {
        max-width: 960px;
    }
    
    .tianchen-services-grid,
    .tianchen-culture-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .tianchen-cities-grid {
        grid-template-columns: repeat(4, 1fr);
    }
    
    .tianchen-footer-main {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 991px) {
    .tianchen-container {
        max-width: 720px;
    }
    
    .tianchen-topbar {
        display: none;
    }
    
    .tianchen-nav {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--bg-white);
        flex-direction: column;
        padding: var(--space-lg);
        box-shadow: var(--shadow-md);
        gap: 0;
    }
    
    .tianchen-nav.active {
        display: flex;
    }
    
    .tianchen-nav-item {
        width: 100%;
    }
    
    .tianchen-nav-link {
        display: block;
        padding: var(--space-md);
        border-bottom: 1px solid var(--border-light);
    }
    
    .tianchen-menu-toggle {
        display: flex;
    }
    
    .tianchen-hero {
        margin-top: 70px;
        height: 500px;
    }
    
    .tianchen-slide-title {
        font-size: 36px;
    }
    
    .tianchen-stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .tianchen-services-grid,
    .tianchen-news-grid,
    .tianchen-news-list-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .tianchen-advantages-grid,
    .tianchen-about-grid,
    .tianchen-contact-grid {
        grid-template-columns: 1fr;
    }
    
    .tianchen-advantages-image {
        order: -1;
    }
    
    .tianchen-process-steps {
        flex-wrap: wrap;
        gap: var(--space-xl);
    }
    
    .tianchen-process-steps::before {
        display: none;
    }
    
    .tianchen-process-step {
        flex: 0 0 calc(50% - var(--space-lg));
    }
    
    .tianchen-news-detail-grid {
        grid-template-columns: 1fr;
    }
    
    .tianchen-sidebar {
        order: -1;
    }
    
    .tianchen-honors-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 767px) {
    .tianchen-container {
        padding: 0 var(--space-md);
    }
    
    .tianchen-section-title h2 {
        font-size: var(--font-size-xxl);
    }
    
    .tianchen-hero {
        height: 450px;
    }
    
    .tianchen-slide-title {
        font-size: 28px;
    }
    
    .tianchen-slide-desc {
        font-size: var(--font-size-md);
    }
    
    .tianchen-slide-btns {
        flex-direction: column;
    }
    
    .tianchen-stats-grid,
    .tianchen-services-grid,
    .tianchen-news-grid,
    .tianchen-news-list-grid,
    .tianchen-culture-grid,
    .tianchen-cities-grid,
    .tianchen-about-features,
    .tianchen-honors-grid {
        grid-template-columns: 1fr;
    }
    
    .tianchen-cities-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .tianchen-process-step {
        flex: 0 0 100%;
    }
    
    .tianchen-footer-main {
        grid-template-columns: 1fr;
    }
    
    .tianchen-footer-bottom {
        flex-direction: column;
        gap: var(--space-md);
        text-align: center;
    }
    
    .tianchen-page-header {
        padding: 120px 0 60px;
    }
    
    .tianchen-page-header h1 {
        font-size: var(--font-size-xxl);
    }
    
    .tianchen-news-detail-main {
        padding: var(--space-lg);
    }
    
    .tianchen-news-detail-title {
        font-size: var(--font-size-xl);
    }
    
    .tianchen-contact-form-wrapper {
        padding: var(--space-lg);
    }
    
    .tianchen-about-image-sub {
        display: none;
    }
    
    .tianchen-advantages-badge {
        position: relative;
        bottom: auto;
        right: auto;
        margin-top: var(--space-md);
    }
}

/* ==================== 动画效果 ==================== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.tianchen-animate {
    opacity: 0;
}

.tianchen-animate.fadeInUp {
    animation: fadeInUp 0.6s ease forwards;
}

.tianchen-animate.fadeIn {
    animation: fadeIn 0.6s ease forwards;
}

.tianchen-animate.slideInLeft {
    animation: slideInLeft 0.6s ease forwards;
}

.tianchen-animate.slideInRight {
    animation: slideInRight 0.6s ease forwards;
}

/* 延迟动画 */
.tianchen-delay-1 { animation-delay: 0.1s; }
.tianchen-delay-2 { animation-delay: 0.2s; }
.tianchen-delay-3 { animation-delay: 0.3s; }
.tianchen-delay-4 { animation-delay: 0.4s; }
.tianchen-delay-5 { animation-delay: 0.5s; }

/* ==================== 浮动按钮 ==================== */
.tianchen-float-btns {
    position: fixed;
    right: 20px;
    bottom: 100px;
    z-index: 999;
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.tianchen-float-btn {
    width: 50px;
    height: 50px;
    background: var(--primary-gradient);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-white);
    font-size: var(--font-size-lg);
    box-shadow: var(--shadow-md);
    transition: all 0.3s ease;
}

.tianchen-float-btn:hover {
    transform: scale(1.1);
    box-shadow: var(--shadow-lg);
}

.tianchen-float-btn.phone {
    background: var(--accent-red);
    animation: pulse 2s infinite;
}

/* ==================== 提示消息 ==================== */
.tianchen-toast {
    position: fixed;
    top: 120px;
    left: 50%;
    transform: translateX(-50%) translateY(-100px);
    padding: 16px 32px;
    background: var(--bg-white);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    gap: var(--space-md);
    z-index: 9999;
    opacity: 0;
    transition: all 0.3s ease;
}

.tianchen-toast.show {
    transform: translateX(-50%) translateY(0);
    opacity: 1;
}

.tianchen-toast.success {
    border-left: 4px solid #4CAF50;
}

.tianchen-toast.error {
    border-left: 4px solid var(--accent-red);
}

.tianchen-toast-icon {
    width: 24px;
    height: 24px;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-sm);
}

.tianchen-toast.success .tianchen-toast-icon {
    background: #4CAF50;
    color: var(--text-white);
}

.tianchen-toast.error .tianchen-toast-icon {
    background: var(--accent-red);
    color: var(--text-white);
}

/* ==================== 加载动画 ==================== */
.tianchen-loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 2px solid rgba(255,255,255,0.3);
    border-top-color: var(--text-white);
    border-radius: var(--radius-full);
    animation: spin 0.8s linear infinite;
}

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