/* 茶道文化主题样式 - 优雅高端设计 */

/* 茶道主题色彩变量 */
:root {
    --tea-primary: #2d4a3e;        /* 深茶绿 */
    --tea-secondary: #5a7c65;      /* 茶绿 */
    --tea-accent: #8b4513;         /* 茶褐 */
    --tea-gold: #d4af37;           /* 茶金 */
    --tea-cream: #f5f5dc;          /* 茶米 */
    --tea-dark: #1a2e23;           /* 深墨绿 */
    --tea-light: #e8f5e8;          /* 淡茶绿 */
    --tea-mist: rgba(45, 74, 62, 0.1);  /* 茶雾 */
    --tea-shadow: rgba(45, 74, 62, 0.3); /* 茶影 */
    
    /* 渐变色 */
    --tea-gradient: linear-gradient(135deg, var(--tea-primary) 0%, var(--tea-secondary) 100%);
    --tea-gold-gradient: linear-gradient(135deg, var(--tea-gold) 0%, #b8860b 100%);
    --tea-mist-gradient: linear-gradient(180deg, transparent 0%, var(--tea-mist) 100%);
    
    /* 字体 */
    --tea-font-serif: 'Noto Serif SC', 'Times New Roman', serif;
    --tea-font-elegant: 'Ma Shan Zheng', cursive;
}

/* 全局样式重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: var(--tea-font-serif);
    line-height: 1.6;
    color: var(--tea-dark);
    background: var(--tea-cream);
    overflow-x: hidden;
}

/* 茶叶飘落动画背景 */
.tea-leaves-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: -1;
    overflow: hidden;
}

.tea-leaf {
    position: absolute;
    width: 20px;
    height: 30px;
    background: var(--tea-secondary);
    border-radius: 0 100% 0 100%;
    opacity: 0.3;
    animation: teaLeafFall 15s infinite linear;
}

.tea-leaf:nth-child(odd) {
    background: var(--tea-accent);
    animation-duration: 12s;
}

.tea-leaf:nth-child(3n) {
    background: var(--tea-primary);
    animation-duration: 18s;
}

@keyframes teaLeafFall {
    0% {
        transform: translateY(-100px) rotate(0deg);
        opacity: 0;
    }
    10% {
        opacity: 0.3;
    }
    90% {
        opacity: 0.3;
    }
    100% {
        transform: translateY(100vh) rotate(360deg);
        opacity: 0;
    }
}

/* 水墨渲染效果 */
.ink-wash {
    position: absolute;
    width: 200px;
    height: 200px;
    background: radial-gradient(circle, var(--tea-mist) 0%, transparent 70%);
    border-radius: 50%;
    animation: inkWashSpread 8s infinite ease-in-out;
    opacity: 0.5;
}

@keyframes inkWashSpread {
    0%, 100% {
        transform: scale(0.5) rotate(0deg);
        opacity: 0.5;
    }
    50% {
        transform: scale(1.5) rotate(180deg);
        opacity: 0.2;
    }
}

/* 英雄区域 */
.hero-section {
    position: relative;
    min-height: 85vh;
    background: var(--tea-gradient);
    display: flex;
    align-items: center;
    overflow: hidden;
    padding-top: 150px;
    padding-bottom: 60px;
}

/* 多层背景效果 */
.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('../assets/tea-bg.jpg') center/cover;
    opacity: 0.3;
    z-index: 1;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 20% 30%, rgba(212, 175, 55, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 80% 70%, rgba(139, 69, 19, 0.2) 0%, transparent 50%),
        linear-gradient(135deg, rgba(0,0,0,0.8) 0%, rgba(0,0,0,0.4) 50%, rgba(0,0,0,0.8) 100%);
    z-index: 2;
}

.hero-section::after {
    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"><defs><pattern id="tea-pattern" x="0" y="0" width="20" height="20" patternUnits="userSpaceOnUse"><circle cx="10" cy="10" r="1" fill="rgba(212,175,55,0.1)"/></pattern></defs><rect width="100" height="100" fill="url(%23tea-pattern)"/></svg>');
    opacity: 0.3;
    z-index: 3;
}

/* 装饰性元素 */
.hero-decorative-elements {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 4;
    pointer-events: none;
}

.decorative-circle {
    position: absolute;
    border: 2px solid rgba(212, 175, 55, 0.2);
    border-radius: 50%;
    animation: float 6s ease-in-out infinite;
}

.decorative-circle.circle-1 {
    width: 200px;
    height: 200px;
    top: 10%;
    right: 15%;
    animation-delay: 0s;
}

.decorative-circle.circle-2 {
    width: 150px;
    height: 150px;
    bottom: 20%;
    left: 10%;
    animation-delay: 2s;
}

.decorative-circle.circle-3 {
    width: 100px;
    height: 100px;
    top: 60%;
    right: 25%;
    animation-delay: 4s;
}

@keyframes float {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(-20px) rotate(180deg); }
}

/* 中式装饰线条 */
.chinese-ornament {
    position: absolute;
    width: 300px;
    height: 2px;
    background: linear-gradient(90deg, transparent 0%, var(--tea-gold) 50%, transparent 100%);
    z-index: 4;
}

.chinese-ornament.top-left {
    top: 15%;
    left: 5%;
    transform: rotate(-45deg);
}

.chinese-ornament.bottom-right {
    bottom: 15%;
    right: 5%;
    transform: rotate(45deg);
}

.hero-content {
    position: relative;
    z-index: 5;
    color: rgb(149, 149, 149);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: center;
    max-width: 1300px;
    width: 100%;
    margin: 0 auto;
    padding: 80px 0px;
    backdrop-filter: blur(1px);
}

/* 品牌标识区域 */
.brand-identity {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 20px;
    animation: fadeInUp 1s ease-out 0.2s both;
}

.brand-tagline {
    position: relative;
}

.tagline-text {
    font-family: var(--tea-font-elegant);
    font-size: 1rem;
    color: var(--tea-gold);
    font-weight: 500;
    letter-spacing: 2px;
}

.tagline-underline {
    width: 100%;
    height: 2px;
    background: var(--tea-gold-gradient);
    margin-top: 5px;
    border-radius: 1px;
    animation: expandWidth 1.5s ease-out 1s both;
}

@keyframes expandWidth {
    0% { width: 0; }
    100% { width: 100%; }
}

/* 产品特色亮点 */
.product-highlights {
    display: grid;
    grid-template-columns: 1fr;
    gap: 15px;
    margin: 35px 0;
    animation: fadeInUp 1s ease-out 0.7s both;
}

.highlight-item {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 15px 20px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 12px;
    border: 1px solid rgba(212, 175, 55, 0.2);
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
}

.highlight-item:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(212, 175, 55, 0.4);
    transform: translateX(5px);
}

.highlight-icon {
    font-size: 1.8rem;
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--tea-gold-gradient);
    border-radius: 50%;
    flex-shrink: 0;
}

.highlight-content {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.highlight-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--tea-cream);
    font-family: var(--tea-font-elegant);
}

.highlight-desc {
    font-size: 0.9rem;
    color: var(--tea-light);
    opacity: 0.8;
}

/* 第三个按钮样式 */
.btn-secondary.tea-btn {
    background: linear-gradient(135deg, rgba(139, 69, 19, 0.8) 0%, rgba(101, 67, 33, 0.8) 100%);
    color: var(--tea-cream);
    border: 2px solid rgba(139, 69, 19, 0.6);
}

.btn-secondary.tea-btn:hover {
    background: linear-gradient(135deg, rgba(139, 69, 19, 1) 0%, rgba(101, 67, 33, 1) 100%);
    border-color: var(--tea-accent);
}

/* 英雄区域左侧内容 */
.hero-left {
    text-align: left;
    animation: fadeInLeft 1s ease-out;
    position: relative;
    z-index: 6;
}

/* 传统印章 */
.traditional-seal {
    display: inline-block;
    animation: sealRotate 3s ease-in-out infinite;
}

.seal-outer {
    width: 80px;
    height: 80px;
    background: radial-gradient(circle, var(--tea-gold) 0%, var(--tea-accent) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 8px 20px rgba(0,0,0,0.3), inset 0 2px 4px rgba(255,255,255,0.2);
    position: relative;
}

.seal-outer::before {
    content: '';
    position: absolute;
    top: -5px;
    left: -5px;
    right: -5px;
    bottom: -5px;
    border: 2px solid rgba(212, 175, 55, 0.3);
    border-radius: 50%;
    animation: sealGlow 2s ease-in-out infinite alternate;
}

.seal-inner {
    width: 60px;
    height: 60px;
    background: var(--tea-primary);
    border-radius: 50%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: white;
    font-family: var(--tea-font-elegant);
    font-weight: bold;
    font-size: 14px;
    line-height: 1;
}

@keyframes sealRotate {
    0%, 100% { transform: rotate(0deg); }
    50% { transform: rotate(5deg); }
}

@keyframes sealGlow {
    0% { box-shadow: 0 0 10px rgba(212, 175, 55, 0.3); }
    100% { box-shadow: 0 0 20px rgba(212, 175, 55, 0.6); }
}

.hero-title {
    font-family: var(--tea-font-elegant);
    font-size: 3.5rem;
    font-weight: bold;
    line-height: 1.2;
    margin-bottom: 1rem;
    animation: fadeInUp 1s ease-out 0.4s both;
}

.title-line-1, .title-line-2 {
    display: block;
    color: #000000;
    font-weight: bold;
}

.title-accent {
    display: block;
    color: #4A2C17;
    font-size: 4rem;
    margin-top: 8px;
    font-weight: bold;
}

/* 动画定义已移除 */

/* 简化的描述样式 */
.hero-description {
    margin: 30px 0;
    font-size: 1.1rem;
    line-height: 1.6;
    color: rgba(157, 157, 157, 0.9);
    animation: fadeInUp 1s ease-out 0.6s both;
}

/* 核心特色样式 */
.core-features {
    display: flex;
    gap: 20px;
    margin: 30px 0;
    animation: fadeInUp 1s ease-out 0.8s both;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 15px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 25px;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: all 0.3s ease;
}

.feature-item:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

.feature-icon {
    font-size: 1.2rem;
}

.feature-text {
    font-size: 0.9rem;
    font-weight: 500;
    white-space: nowrap;
}

/* 行动按钮 */
.hero-actions {
    display: flex;
    gap: 20px;
    margin-top: 40px;
    animation: fadeInUp 1s ease-out 1.2s both;
}

.tea-btn {
    position: relative;
    padding: 15px 30px;
    border-radius: 30px;
    font-size: 1.1rem;
    font-weight: 500;
    text-decoration: none;
    transition: all 0.3s ease;
    overflow: hidden;
    border: 2px solid var(--tea-gold);
}

.btn-primary.tea-btn {
    background: var(--tea-gold-gradient);
    color: var(--tea-primary);
}

.btn-outline.tea-btn {
    background: transparent;
    color: var(--tea-gold);
}

.tea-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(0,0,0,0.3);
}

.btn-ripple {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: rgba(255,255,255,0.3);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: all 0.3s ease;
}

.tea-btn:active .btn-ripple {
    width: 200px;
    height: 200px;
}

/* 英雄区域右侧 - 茶道仪式可视化 */
.hero-right {
    display: flex;
    align-items: center;
    justify-content: center;
    animation: fadeInRight 1s ease-out 0.5s both;
}

.tea-ceremony-visual {
    position: relative;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 70%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* 茶桌 */
.tea-table {
    position: absolute;
    bottom: 50px;
    width: 300px;
    height: 20px;
    background: linear-gradient(90deg, var(--tea-accent) 0%, var(--tea-primary) 100%);
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.3);
}

.table-surface {
    position: absolute;
    top: -2px;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--tea-gold);
    border-radius: 10px;
}

.table-pattern {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 80%;
    height: 2px;
    background: repeating-linear-gradient(
        90deg,
        var(--tea-gold) 0px,
        var(--tea-gold) 10px,
        transparent 10px,
        transparent 20px
    );
}

/* 茶具组合 */
.tea-set {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 40px;
    margin-bottom: 2rem;
    opacity: 0.9;
    animation: fadeInUp 1s ease-out 0.3s both;
}

.hero-description {
    font-size: 1.1rem;
    line-height: 1.8;
    margin-bottom: 3rem;
    opacity: 0.8;
    animation: fadeInUp 1s ease-out 0.6s both;
}

/* 书法动画 */
.calligraphy-text {
    position: relative;
    display: inline-block;
    overflow: hidden;
}

.calligraphy-text::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--tea-primary);
    animation: calligraphyReveal 2s ease-out forwards;
}

@keyframes calligraphyReveal {
    0% {
        transform: translateX(0);
    }
    100% {
        transform: translateX(100%);
    }
}

/* 茶道仪式区域 */
.tea-ceremony {
    position: absolute;
    bottom: 10%;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    align-items: center;
    gap: 30px;
    animation: fadeInUp 1s ease-out 1s both;
}

.main-teapot {
    position: relative;
    width: 80px;
    height: 80px;
    background: var(--tea-gold-gradient);
    border-radius: 50% 50% 50% 50% / 60% 60% 40% 40%;
    box-shadow: 0 10px 20px rgba(0,0,0,0.3);
    animation: teapotGlow 3s ease-in-out infinite alternate;
}

.main-teapot::before {
    content: '';
    position: absolute;
    top: -10px;
    right: -15px;
    width: 20px;
    height: 15px;
    background: var(--tea-gold);
    border-radius: 50%;
    box-shadow: inset 2px 2px 4px rgba(0,0,0,0.2);
}

.main-teapot::after {
    content: '';
    position: absolute;
    top: 20px;
    left: -20px;
    width: 25px;
    height: 8px;
    background: var(--tea-gold);
    border-radius: 10px;
    box-shadow: inset 2px 2px 4px rgba(0,0,0,0.2);
}

@keyframes teapotGlow {
    0% {
        box-shadow: 0 10px 20px rgba(0,0,0,0.3), 0 0 0 rgba(212, 175, 55, 0.4);
    }
    100% {
        box-shadow: 0 10px 20px rgba(0,0,0,0.3), 0 0 20px rgba(212, 175, 55, 0.6);
    }
}

.steam-particle {
    position: absolute;
    top: -20px;
    left: 50%;
    width: 4px;
    height: 4px;
    background: rgba(255,255,255,0.6);
    border-radius: 50%;
    animation: steamRise 2s ease-out infinite;
}

.steam-particle:nth-child(2) {
    left: 40%;
    animation-delay: 0.3s;
}

.steam-particle:nth-child(3) {
    left: 60%;
    animation-delay: 0.6s;
}

@keyframes steamRise {
    0% {
        transform: translateY(0) scale(1);
        opacity: 0.6;
    }
    100% {
        transform: translateY(-30px) scale(0);
        opacity: 0;
    }
}

.tea-cup {
    position: relative;
    width: 40px;
    height: 30px;
    background: var(--tea-cream);
    border-radius: 0 0 20px 20px;
    border: 2px solid var(--tea-gold);
    transition: all 0.5s ease;
}

.tea-cup::before {
    content: '';
    position: absolute;
    top: 2px;
    left: 2px;
    right: 2px;
    height: 0;
    background: var(--tea-accent);
    border-radius: 0 0 16px 16px;
    transition: height 0.5s ease;
}

.tea-cup.filled::before {
    height: 20px;
}

.tea-aroma {
    position: absolute;
    top: -15px;
    left: 50%;
    transform: translateX(-50%);
    width: 2px;
    height: 2px;
    background: rgba(255,255,255,0.4);
    border-radius: 50%;
    opacity: 0;
    animation: aromaRise 1.5s ease-out infinite;
}

.tea-aroma.active {
    opacity: 1;
}

@keyframes aromaRise {
    0% {
        transform: translateX(-50%) translateY(0) scale(1);
        opacity: 0.4;
    }
    100% {
        transform: translateX(-50%) translateY(-20px) scale(0);
        opacity: 0;
    }
}

.pouring-animation {
    position: absolute;
    top: 50px;
    left: 40px;
    width: 2px;
    height: 0;
    background: var(--tea-accent);
    opacity: 0;
    transition: all 0.5s ease;
}

.pouring-animation.active {
    height: 40px;
    opacity: 0.8;
}

/* 联系我们区域 */
.contact-section {
    padding: 60px 0;
    background: var(--tea-dark);
    color: white;
    position: relative;
}

/* 茶文化时间线 */
.tea-culture-timeline {
    padding: 60px 0;
    background: linear-gradient(180deg, var(--tea-cream) 0%, var(--tea-light) 100%);
    position: relative;
}

.timeline-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    position: relative;
}

.timeline-title {
    text-align: center;
    font-family: var(--tea-font-elegant);
    font-size: 3rem;
    color: var(--tea-primary);
    margin-bottom: 3rem;
    position: relative;
}

.timeline-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 3px;
    background: var(--tea-gold-gradient);
    border-radius: 2px;
}

.timeline {
    position: relative;
    padding: 50px 0;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 4px;
    background: var(--tea-gold-gradient);
    transform: translateX(-50%);
}

.timeline-item {
    position: relative;
    margin: 50px 0;
    opacity: 0;
    transform: translateY(50px);
    transition: all 0.6s ease;
}

.timeline-item.animate {
    opacity: 1;
    transform: translateY(0);
}

.timeline-item:nth-child(odd) .timeline-content {
    margin-left: 0;
    margin-right: 50%;
    text-align: right;
    padding-right: 40px;
}

.timeline-item:nth-child(even) .timeline-content {
    margin-left: 50%;
    margin-right: 0;
    text-align: left;
    padding-left: 40px;
}

.timeline-marker {
    position: absolute;
    left: 50%;
    top: 20px;
    transform: translateX(-50%);
    width: 20px;
    height: 20px;
    background: var(--tea-gold);
    border: 4px solid var(--tea-cream);
    border-radius: 50%;
    z-index: 2;
    box-shadow: 0 0 0 4px var(--tea-gold);
    animation: markerPulse 2s ease-in-out infinite;
}

@keyframes markerPulse {
    0%, 100% {
        box-shadow: 0 0 0 4px var(--tea-gold), 0 0 0 8px transparent;
    }
    50% {
        box-shadow: 0 0 0 4px var(--tea-gold), 0 0 0 12px rgba(212, 175, 55, 0.3);
    }
}

.timeline-content {
    background: white;
    padding: 30px;
    border-radius: 15px;
    box-shadow: 0 10px 30px var(--tea-shadow);
    position: relative;
    border: 2px solid var(--tea-light);
}

.timeline-content::before {
    content: '';
    position: absolute;
    top: 20px;
    width: 0;
    height: 0;
    border: 15px solid transparent;
}

.timeline-item:nth-child(odd) .timeline-content::before {
    right: -30px;
    border-left-color: white;
}

.timeline-item:nth-child(even) .timeline-content::before {
    left: -30px;
    border-right-color: white;
}

.timeline-year {
    font-family: var(--tea-font-elegant);
    font-size: 1.5rem;
    color: var(--tea-gold);
    margin-bottom: 10px;
    font-weight: bold;
}

.timeline-event {
    font-size: 1.2rem;
    color: var(--tea-primary);
    margin-bottom: 15px;
    font-weight: 600;
}

.timeline-description {
    color: var(--tea-dark);
    line-height: 1.6;
    font-size: 1rem;
}

/* 茶知识区域 - 第一个定义 */
.tea-knowledge {
    padding: 120px 0;
    background: var(--tea-gradient);
    color: white;
    position: relative;
    overflow: hidden;
}

.tea-knowledge::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><circle cx="20" cy="20" r="2" fill="rgba(255,255,255,0.1)"/><circle cx="80" cy="40" r="1.5" fill="rgba(255,255,255,0.08)"/><circle cx="40" cy="70" r="1" fill="rgba(255,255,255,0.06)"/><circle cx="70" cy="80" r="2.5" fill="rgba(255,255,255,0.05)"/></svg>') repeat;
    animation: floatPattern 20s linear infinite;
    pointer-events: none;
}

@keyframes floatPattern {
    0% { transform: translateY(0); }
    100% { transform: translateY(-100px); }
}

.knowledge-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 30px;
}

.knowledge-title {
    text-align: center;
    font-family: var(--tea-font-elegant);
    font-size: clamp(2.5rem, 5vw, 3.5rem);
    margin-bottom: 4rem;
    text-shadow: 2px 2px 8px rgba(0,0,0,0.4);
    position: relative;
    display: inline-block;
    width: 100%;
}

.knowledge-title::after {
    content: '';
    position: absolute;
    bottom: -15px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 3px;
    background: var(--tea-gold);
    border-radius: 2px;
}

.knowledge-tabs {
    display: flex;
    justify-content: center;
    margin-bottom: 60px;
    flex-wrap: wrap;
    gap: 15px;
    padding: 0 20px;
}

.tab-btn {
    padding: 18px 35px;
    background: rgba(255,255,255,0.08);
    border: 2px solid rgba(255,255,255,0.2);
    border-radius: 50px;
    color: white;
    font-size: 1.1rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    backdrop-filter: blur(15px);
    position: relative;
    overflow: hidden;
    min-width: 120px;
    text-align: center;
}

.tab-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.1), transparent);
    transition: left 0.6s ease;
}

.tab-btn:hover::before {
    left: 100%;
}

.tab-btn:hover,
.tab-btn.active {
    background: var(--tea-gold);
    border-color: var(--tea-gold);
    color: var(--tea-primary);
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(212, 175, 55, 0.4);
}

.category-content {
    display: none;
    animation: fadeInUp 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.category-content.active {
    display: block;
}

.knowledge-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 35px;
    margin-top: 40px;
    padding: 0 10px;
}

.knowledge-card {
    background: rgba(255,255,255,0.12);
    padding: 35px;
    border-radius: 25px;
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255,255,255,0.25);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
    box-shadow: 0 8px 32px rgba(0,0,0,0.1);
}

.knowledge-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.15), transparent);
    transition: left 0.6s ease;
}

.knowledge-card:hover::before {
    left: 100%;
}

.knowledge-card:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: 0 20px 60px rgba(0,0,0,0.2);
    border-color: rgba(255,255,255,0.4);
    background: rgba(255,255,255,0.18);
}

.knowledge-card h3 {
    font-family: var(--tea-font-elegant);
    font-size: 1.6rem;
    margin-bottom: 20px;
    color: var(--tea-gold);
    position: relative;
    padding-bottom: 10px;
}

.knowledge-card h3::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 40px;
    height: 2px;
    background: var(--tea-gold);
    border-radius: 1px;
}

.knowledge-card p {
    line-height: 1.8;
    opacity: 0.95;
    font-size: 1.05rem;
    color: rgba(255,255,255,0.9);
}

/* 响应式设计优化 */
@media (max-width: 768px) {
    .tea-knowledge {
        padding: 80px 0;
    }
    
    .knowledge-container {
        padding: 0 20px;
    }
    
    .knowledge-tabs {
        gap: 10px;
        margin-bottom: 40px;
    }
    
    .tab-btn {
        padding: 15px 25px;
        font-size: 1rem;
        min-width: 100px;
    }
    
    .knowledge-grid {
        grid-template-columns: 1fr;
        gap: 25px;
        padding: 0;
    }
    
    .knowledge-card {
        padding: 25px;
        margin: 0 5px;
    }
}

@media (max-width: 480px) {
    .knowledge-tabs {
        flex-direction: column;
        align-items: center;
    }
    
    .tab-btn {
        width: 100%;
        max-width: 280px;
    }
}

/* 产品展示区域 */
.products-section {
    padding: 60px 0;
    background: var(--tea-cream);
}

.products-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.products-title {
    text-align: center;
    font-family: var(--tea-font-elegant);
    font-size: 3rem;
    color: var(--tea-primary);
    margin-bottom: 3rem;
}

.product-filters {
    display: flex;
    justify-content: center;
    margin-bottom: 50px;
    flex-wrap: wrap;
    gap: 15px;
}

.filter-btn {
    padding: 12px 25px;
    background: white;
    border: 2px solid var(--tea-light);
    border-radius: 25px;
    color: var(--tea-primary);
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: 500;
}

.filter-btn:hover,
.filter-btn.active {
    background: var(--tea-primary);
    color: white;
    border-color: var(--tea-primary);
    transform: translateY(-2px);
    box-shadow: 0 5px 15px var(--tea-shadow);
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.product-card {
    background: white;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    transition: all 0.3s ease;
    position: relative;
    cursor: pointer;
}

.product-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 50px rgba(0,0,0,0.15);
}

.product-image {
    position: relative;
    height: 250px;
    background: var(--tea-light);
    overflow: hidden;
    border-radius: 8px 8px 0 0;
}

.product-image img,
.product-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
    display: block;
}

.product-card:hover .product-image img,
.product-card:hover .product-image .product-img {
    transform: scale(1.05);
}

.product-badge {
    position: absolute;
    top: 15px;
    right: 15px;
    background: var(--tea-gold);
    color: white;
    padding: 5px 12px;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: bold;
}

.product-actions {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    display: flex;
    gap: 10px;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.product-card:hover .product-actions {
    opacity: 1;
}

.action-btn {
    width: 45px;
    height: 45px;
    border-radius: 50%;
    background: rgba(255,255,255,0.9);
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    color: var(--tea-primary);
}

.action-btn:hover {
    background: var(--tea-primary);
    color: white;
    transform: scale(1.1);
}

.product-info {
    padding: 25px;
}

.product-name {
    font-family: var(--tea-font-elegant);
    font-size: 1.3rem;
    color: var(--tea-primary);
    margin-bottom: 10px;
    font-weight: 600;
}

.product-description {
    color: #666;
    font-size: 0.9rem;
    line-height: 1.5;
    margin-bottom: 15px;
}

.product-price {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.price {
    font-size: 1.4rem;
    font-weight: bold;
    color: var(--tea-accent);
}

.original-price {
    font-size: 1rem;
    color: #999;
    text-decoration: line-through;
    margin-left: 10px;
}

.add-cart-btn {
    background: var(--tea-gold-gradient);
    color: white;
    border: none;
    padding: 8px 16px;
    border-radius: 20px;
    cursor: pointer;
    font-size: 0.9rem;
    transition: all 0.3s ease;
}

.add-cart-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(212, 175, 55, 0.4);
}

/* 品质保证区域 */
.quality-section {
    padding: 100px 0;
    background: var(--tea-light);
}

.quality-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.quality-title {
    text-align: center;
    font-family: var(--tea-font-elegant);
    font-size: 3rem;
    color: var(--tea-primary);
    margin-bottom: 3rem;
}

.quality-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
}

.quality-item {
    text-align: center;
    padding: 40px 20px;
    background: white;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.quality-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--tea-gold-gradient);
}

.quality-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 50px rgba(0,0,0,0.15);
}

.quality-icon {
    width: 80px;
    height: 80px;
    background: radial-gradient(circle, var(--tea-gold) 0%, var(--tea-accent) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 8px 20px rgba(0,0,0,0.3), inset 0 2px 4px rgba(255,255,255,0.2);
    position: relative;
}

.seal-outer::before {
    content: '';
    position: absolute;
    top: -5px;
    left: -5px;
    right: -5px;
    bottom: -5px;
    border: 2px solid rgba(212, 175, 55, 0.3);
    border-radius: 50%;
    animation: sealGlow 2s ease-in-out infinite alternate;
}

.seal-inner {
    width: 60px;
    height: 60px;
    background: var(--tea-primary);
    border-radius: 50%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: white;
    font-family: var(--tea-font-elegant);
    font-weight: bold;
    font-size: 14px;
    line-height: 1;
}

@keyframes sealRotate {
    0%, 100% { transform: rotate(0deg); }
    50% { transform: rotate(5deg); }
}

@keyframes sealGlow {
    0% { box-shadow: 0 0 10px rgba(212, 175, 55, 0.3); }
    100% { box-shadow: 0 0 20px rgba(212, 175, 55, 0.6); }
}

.hero-title {
    font-family: var(--tea-font-elegant);
    font-size: 3.5rem;
    margin-bottom: 1.5rem;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
    animation: fadeInUp 1s ease-out 0.3s both;
    line-height: 1.2;
}

.title-line-1, .title-line-2 {
    display: block;
    font-size: 2.8rem;
    color: var(--tea-cream);
    margin-bottom: 8px;
}

.title-accent {
    display: block;
    font-size: 4rem;
    background: var(--tea-gold-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: bold;
    margin-top: 10px;
    animation: titleGlow 3s ease-in-out infinite alternate;
}

@keyframes titleGlow {
    0% { filter: drop-shadow(0 0 5px rgba(212, 175, 55, 0.5)); }
    100% { filter: drop-shadow(0 0 15px rgba(212, 175, 55, 0.8)); }
}

/* 诗词描述 */
.poetry-description {
    margin: 30px 0;
    animation: fadeInUp 1s ease-out 0.6s both;
}

.poetry-line {
    font-size: 1.2rem;
    color: var(--tea-light);
    margin-bottom: 8px;
    font-family: var(--tea-font-elegant);
    opacity: 0.9;
    position: relative;
    padding-left: 20px;
}

.poetry-line::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--tea-gold);
    font-size: 1.5rem;
}

/* 茶道精神 */
.tea-spirit {
    display: flex;
    gap: 20px;
    margin: 40px 0;
    animation: fadeInUp 1s ease-out 0.9s both;
}

.spirit-item {
    text-align: center;
    transition: all 0.3s ease;
    cursor: pointer;
}

.spirit-item:hover {
    transform: translateY(-5px);
}

.spirit-char {
    display: block;
    width: 60px;
    height: 60px;
    background: var(--tea-gold-gradient);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--tea-font-elegant);
    font-size: 1.8rem;
    font-weight: bold;
    color: var(--tea-primary);
    margin-bottom: 8px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.2);
}

.spirit-desc {
    font-size: 0.9rem;
    color: var(--tea-light);
    opacity: 0.8;
}

/* 行动按钮 */
.hero-actions {
    display: flex;
    gap: 20px;
    margin-top: 40px;
    animation: fadeInUp 1s ease-out 1.2s both;
}

.tea-btn {
    position: relative;
    padding: 15px 30px;
    border-radius: 30px;
    font-size: 1.1rem;
    font-weight: 500;
    text-decoration: none;
    transition: all 0.3s ease;
    overflow: hidden;
    border: 2px solid var(--tea-gold);
}

.btn-primary.tea-btn {
    background: var(--tea-gold-gradient);
    color: var(--tea-primary);
}

.btn-outline.tea-btn {
    background: transparent;
    color: var(--tea-gold);
}

.tea-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(0,0,0,0.3);
}

.btn-ripple {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: rgba(255,255,255,0.3);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: all 0.3s ease;
}

.tea-btn:active .btn-ripple {
    width: 200px;
    height: 200px;
}

/* 英雄区域右侧 - 茶道仪式可视化 */
.hero-right {
    display: flex;
    align-items: center;
    justify-content: center;
    animation: fadeInRight 1s ease-out 0.5s both;
}

.tea-ceremony-visual {
    position: relative;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 70%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* 茶桌 */
.tea-table {
    position: absolute;
    bottom: 50px;
    width: 300px;
    height: 20px;
    background: linear-gradient(90deg, var(--tea-accent) 0%, var(--tea-primary) 100%);
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.3);
}

.table-surface {
    position: absolute;
    top: -2px;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--tea-gold);
    border-radius: 10px;
}

.table-pattern {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 80%;
    height: 2px;
    background: repeating-linear-gradient(
        90deg,
        var(--tea-gold) 0px,
        var(--tea-gold) 10px,
        transparent 10px,
        transparent 20px
    );
}

/* 茶具组合 */
.tea-set {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 40px;
}

.tea-set-item {
    margin-bottom: 2rem;
    opacity: 0.9;
    animation: fadeInUp 1s ease-out 0.3s both;
}

.hero-description {
    font-size: 1.1rem;
    line-height: 1.8;
    margin-bottom: 3rem;
    opacity: 0.8;
    animation: fadeInUp 1s ease-out 0.6s both;
}

/* 书法动画 */
.calligraphy-text {
    position: relative;
    display: inline-block;
    overflow: hidden;
}

.calligraphy-text::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--tea-primary);
    animation: calligraphyReveal 2s ease-out forwards;
}

@keyframes calligraphyReveal {
    0% {
        transform: translateX(0);
    }
    100% {
        transform: translateX(100%);
    }
}

/* 茶道仪式区域 */
.tea-ceremony {
    position: absolute;
    bottom: 10%;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    align-items: center;
    gap: 30px;
    animation: fadeInUp 1s ease-out 1s both;
}

.main-teapot {
    position: relative;
    width: 80px;
    height: 80px;
    background: var(--tea-gold-gradient);
    border-radius: 50% 50% 50% 50% / 60% 60% 40% 40%;
    box-shadow: 0 10px 20px rgba(0,0,0,0.3);
    animation: teapotGlow 3s ease-in-out infinite alternate;
}

.main-teapot::before {
    content: '';
    position: absolute;
    top: -10px;
    right: -15px;
    width: 20px;
    height: 15px;
    background: var(--tea-gold);
    border-radius: 50%;
    box-shadow: inset 2px 2px 4px rgba(0,0,0,0.2);
}

.main-teapot::after {
    content: '';
    position: absolute;
    top: 20px;
    left: -20px;
    width: 25px;
    height: 8px;
    background: var(--tea-gold);
    border-radius: 10px;
    box-shadow: inset 2px 2px 4px rgba(0,0,0,0.2);
}

@keyframes teapotGlow {
    0% {
        box-shadow: 0 10px 20px rgba(0,0,0,0.3), 0 0 0 rgba(212, 175, 55, 0.4);
    }
    100% {
        box-shadow: 0 10px 20px rgba(0,0,0,0.3), 0 0 20px rgba(212, 175, 55, 0.6);
    }
}

.steam-particle {
    position: absolute;
    top: -20px;
    left: 50%;
    width: 4px;
    height: 4px;
    background: rgba(255,255,255,0.6);
    border-radius: 50%;
    animation: steamRise 2s ease-out infinite;
}

.steam-particle:nth-child(2) {
    left: 40%;
    animation-delay: 0.3s;
}

.steam-particle:nth-child(3) {
    left: 60%;
    animation-delay: 0.6s;
}

@keyframes steamRise {
    0% {
        transform: translateY(0) scale(1);
        opacity: 0.6;
    }
    100% {
        transform: translateY(-30px) scale(0);
        opacity: 0;
    }
}

.tea-cup {
    position: relative;
    width: 40px;
    height: 30px;
    background: var(--tea-cream);
    border-radius: 0 0 20px 20px;
    border: 2px solid var(--tea-gold);
    transition: all 0.5s ease;
}

.tea-cup::before {
    content: '';
    position: absolute;
    top: 2px;
    left: 2px;
    right: 2px;
    height: 0;
    background: var(--tea-accent);
    border-radius: 0 0 16px 16px;
    transition: height 0.5s ease;
}

.tea-cup.filled::before {
    height: 20px;
}

.tea-aroma {
    position: absolute;
    top: -15px;
    left: 50%;
    transform: translateX(-50%);
    width: 2px;
    height: 2px;
    background: rgba(255,255,255,0.4);
    border-radius: 50%;
    opacity: 0;
    animation: aromaRise 1.5s ease-out infinite;
}

.tea-aroma.active {
    opacity: 1;
}

@keyframes aromaRise {
    0% {
        transform: translateX(-50%) translateY(0) scale(1);
        opacity: 0.4;
    }
    100% {
        transform: translateX(-50%) translateY(-20px) scale(0);
        opacity: 0;
    }
}

.pouring-animation {
    position: absolute;
    top: 50px;
    left: 40px;
    width: 2px;
    height: 0;
    background: var(--tea-accent);
    opacity: 0;
    transition: all 0.5s ease;
}

.pouring-animation.active {
    height: 40px;
    opacity: 0.8;
}

/* 茶文化时间线 */
.tea-culture-timeline {
    padding: 100px 0;
    background: linear-gradient(180deg, var(--tea-cream) 0%, var(--tea-light) 100%);
    position: relative;
}

.timeline-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    position: relative;
}

.timeline-title {
    text-align: center;
    font-family: var(--tea-font-elegant);
    font-size: 3rem;
    color: var(--tea-primary);
    margin-bottom: 3rem;
    position: relative;
}

.timeline-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 3px;
    background: var(--tea-gold-gradient);
    border-radius: 2px;
}

.timeline {
    position: relative;
    padding: 50px 0;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 4px;
    background: var(--tea-gold-gradient);
    transform: translateX(-50%);
}

.timeline-item {
    position: relative;
    margin: 50px 0;
    opacity: 0;
    transform: translateY(50px);
    transition: all 0.6s ease;
}

.timeline-item.animate {
    opacity: 1;
    transform: translateY(0);
}

.timeline-item:nth-child(odd) .timeline-content {
    margin-left: 0;
    margin-right: 50%;
    text-align: right;
    padding-right: 40px;
}

.timeline-item:nth-child(even) .timeline-content {
    margin-left: 50%;
    margin-right: 0;
    text-align: left;
    padding-left: 40px;
}

.timeline-marker {
    position: absolute;
    left: 50%;
    top: 20px;
    transform: translateX(-50%);
    width: 20px;
    height: 20px;
    background: var(--tea-gold);
    border: 4px solid var(--tea-cream);
    border-radius: 50%;
    z-index: 2;
    box-shadow: 0 0 0 4px var(--tea-gold);
    animation: markerPulse 2s ease-in-out infinite;
}

@keyframes markerPulse {
    0%, 100% {
        box-shadow: 0 0 0 4px var(--tea-gold), 0 0 0 8px transparent;
    }
    50% {
        box-shadow: 0 0 0 4px var(--tea-gold), 0 0 0 12px rgba(212, 175, 55, 0.3);
    }
}

.timeline-content {
    background: white;
    padding: 30px;
    border-radius: 15px;
    box-shadow: 0 10px 30px var(--tea-shadow);
    position: relative;
    border: 2px solid var(--tea-light);
}

.timeline-content::before {
    content: '';
    position: absolute;
    top: 20px;
    width: 0;
    height: 0;
    border: 15px solid transparent;
}

.timeline-item:nth-child(odd) .timeline-content::before {
    right: -30px;
    border-left-color: white;
}

.timeline-item:nth-child(even) .timeline-content::before {
    left: -30px;
    border-right-color: white;
}

.timeline-year {
    font-family: var(--tea-font-elegant);
    font-size: 1.5rem;
    color: var(--tea-gold);
    margin-bottom: 10px;
    font-weight: bold;
}

.timeline-event {
    font-size: 1.2rem;
    color: var(--tea-primary);
    margin-bottom: 15px;
    font-weight: 600;
}

.timeline-description {
    color: var(--tea-dark);
    line-height: 1.6;
    font-size: 1rem;
}

/* 茶学知识区域 */
.tea-knowledge-section {
    padding: 60px 0;
    background: linear-gradient(135deg, #f8f6f0 0%, #f0ede5 100%);
    position: relative;
    overflow: hidden;
}

/* 背景装饰 */
.knowledge-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    pointer-events: none;
    z-index: 0;
}

.floating-leaves {
    position: absolute;
    width: 100%;
    height: 100%;
}

.leaf {
    position: absolute;
    width: 20px;
    height: 20px;
    background: rgba(139, 69, 19, 0.1);
    border-radius: 0 100% 0 100%;
    animation: floatLeaf 15s infinite linear;
}

.leaf-1 { top: 10%; left: 10%; animation-delay: 0s; }
.leaf-2 { top: 20%; left: 80%; animation-delay: 3s; }
.leaf-3 { top: 60%; left: 20%; animation-delay: 6s; }
.leaf-4 { top: 80%; left: 70%; animation-delay: 9s; }
.leaf-5 { top: 40%; left: 90%; animation-delay: 12s; }

@keyframes floatLeaf {
    0% { transform: translateY(0) rotate(0deg); opacity: 0; }
    10% { opacity: 1; }
    90% { opacity: 1; }
    100% { transform: translateY(-100px) rotate(360deg); opacity: 0; }
}

/* 区域标题 */
.section-header {
    text-align: center;
    margin-bottom: 4rem;
    position: relative;
    z-index: 1;
}

.section-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(255, 255, 255, 0.9);
    padding: 0.8rem 1.5rem;
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 600;
    color: #5d4037;
    margin-bottom: 1.5rem;
    backdrop-filter: blur(10px);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.badge-icon {
    font-size: 1.2rem;
}

.section-title {
    margin-bottom: 1.5rem;
}

.title-main {
    display: block;
    font-size: 3.5rem;
    font-weight: 700;
    color: #2c3e50;
    margin-bottom: 0.5rem;
    position: relative;
}

/* .title-main::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, #d4af37, #f4d03f);
    border-radius: 2px;
} */

.title-sub {
    display: block;
    font-size: 1.3rem;
    font-weight: 400;
    color: #7f8c8d;
    font-style: italic;
}

.section-description {
    font-size: 1.1rem;
    color: rgba(44, 62, 80, 0.7);
    line-height: 1.6;
    max-width: 600px;
    margin: 0 auto;
}

/* 分类导航 */
.category-tabs {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    margin-bottom: 4rem;
    flex-wrap: wrap;
}

.tab-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.3rem;
    padding: 1.5rem 2rem;
    background: rgba(255, 255, 255, 0.9);
    border: 2px solid transparent;
    border-radius: 20px;
    cursor: pointer;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
    backdrop-filter: blur(10px);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    min-width: 140px;
}

.tab-icon {
    font-size: 2rem;
    margin-bottom: 0.5rem;
}

.tab-text {
    font-size: 1.1rem;
    font-weight: 600;
    color: #5d4037;
}

.tab-desc {
    font-size: 0.85rem;
    color: #8d6e63;
    font-weight: 400;
}

.tab-btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: radial-gradient(circle, rgba(212, 175, 55, 0.3) 0%, transparent 70%);
    transition: all 0.6s ease;
    transform: translate(-50%, -50%);
    border-radius: 50%;
}

.tab-btn:hover::before {
    width: 300px;
    height: 300px;
}

.tab-btn:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
    border-color: #d4af37;
}

.tab-btn.active {
    background: linear-gradient(135deg, #d4af37, #f4d03f);
    color: white;
    border-color: #d4af37;
    box-shadow: 0 6px 20px rgba(212, 175, 55, 0.4);
}

.tab-btn.active .tab-text,
.tab-btn.active .tab-desc {
    color: white;
}

/* 内容区域 */
.category-content {
    display: none;
    animation: fadeInUp 0.6s ease-out;
    position: relative;
    z-index: 1;
}

.category-content.active {
    display: block;
}

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

.content-intro {
    text-align: center;
    margin-bottom: 3rem;
    padding: 2rem;
    background: rgba(255, 255, 255, 0.8);
    border-radius: 20px;
    backdrop-filter: blur(10px);
}

.content-intro h3 {
    font-size: 2rem;
    font-weight: 700;
    color: #2c3e50;
    margin-bottom: 1rem;
}

.content-intro p {
    font-size: 1.1rem;
    color: rgba(44, 62, 80, 0.7);
    line-height: 1.6;
}

/* 茶叶类型网格 */
.tea-types-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
}

.tea-type-card {
    background: rgba(255, 255, 255, 0.95);
    border-radius: 24px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    backdrop-filter: blur(15px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.premium-card {
    position: relative;
}

.premium-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #d4af37, #f4d03f, #d4af37);
    transform: scaleX(0);
    transition: transform 0.4s ease;
    z-index: 2;
}

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

.tea-type-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.card-header {
    position: relative;
    padding: 2rem;
    background: linear-gradient(135deg, #f8f6f0 0%, #f0ede5 100%);
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 120px;
}

.card-badge {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: linear-gradient(135deg, #d4af37, #f4d03f);
    color: white;
    padding: 0.4rem 0.8rem;
    border-radius: 12px;
    font-size: 0.8rem;
    font-weight: 600;
    box-shadow: 0 2px 8px rgba(212, 175, 55, 0.3);
}

.card-content {
    padding: 2rem;
}

.card-content h3 {
    font-size: 1.5rem;
    font-weight: 700;
    color: #2c3e50;
    margin-bottom: 1rem;
    text-align: center;
}

.tea-description {
    color: rgba(44, 62, 80, 0.8);
    line-height: 1.7;
    font-size: 1rem;
    margin-bottom: 1.5rem;
    text-align: center;
}

.tea-features {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    justify-content: center;
    margin-bottom: 1.5rem;
}

.feature {
    background: rgba(212, 175, 55, 0.1);
    color: #8d6e63;
    padding: 0.4rem 0.8rem;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 500;
    border: 1px solid rgba(212, 175, 55, 0.2);
}

.feature.premium {
    background: linear-gradient(135deg, #d4af37, #f4d03f);
    color: white;
    border-color: #d4af37;
    box-shadow: 0 2px 8px rgba(212, 175, 55, 0.3);
}

/* 茶叶统计条 */
.tea-stats {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.stat {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.stat-label {
    font-size: 0.9rem;
    font-weight: 600;
    color: #5d4037;
    min-width: 80px;
}

.stat-bar {
    flex: 1;
    height: 8px;
    background: rgba(212, 175, 55, 0.2);
    border-radius: 4px;
    overflow: hidden;
}

.stat-fill {
    height: 100%;
    background: linear-gradient(90deg, #d4af37, #f4d03f);
    border-radius: 4px;
    transition: width 1s ease-out;
}

/* 茶道文化区域样式 */
.culture-aspects {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
    margin: 40px auto 0;
    padding: 0 20px;
    max-width: 1200px;
    justify-content: center;
    align-items: start;
}

.culture-card {
    background: linear-gradient(145deg, rgba(255, 255, 255, 0.95), rgba(248, 245, 240, 0.9));
    border-radius: 20px;
    padding: 35px;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(212, 175, 55, 0.15);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
    box-shadow: 
        0 8px 32px rgba(0, 0, 0, 0.08),
        0 2px 8px rgba(212, 175, 55, 0.1);
}

.culture-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #d4af37, #f4e4bc, #d4af37);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.5s ease;
}

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

.culture-card:hover {
    transform: translateY(-12px) scale(1.02);
    box-shadow: 
        0 20px 60px rgba(0, 0, 0, 0.15),
        0 8px 24px rgba(212, 175, 55, 0.2);
    border-color: rgba(212, 175, 55, 0.3);
}

.culture-card::after {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle, rgba(212, 175, 55, 0.05) 0%, transparent 70%);
    opacity: 0;
    transition: opacity 0.4s ease;
    pointer-events: none;
}

.culture-card:hover::after {
    opacity: 1;
}

.culture-icon {
    font-size: 3.5rem;
    margin-bottom: 20px;
    display: block;
    text-align: center;
    filter: drop-shadow(0 4px 12px rgba(0, 0, 0, 0.1));
    transition: all 0.4s ease;
    position: relative;
}

.culture-card:hover .culture-icon {
    transform: scale(1.1) rotate(5deg);
    filter: drop-shadow(0 8px 20px rgba(212, 175, 55, 0.3));
}

.culture-card h3 {
    color: #2c3e50;
    font-size: 1.8rem;
    font-weight: 700;
    margin-bottom: 18px;
    text-align: center;
    position: relative;
    font-family: 'Noto Serif SC', serif;
}

.culture-card h3::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 50%;
    transform: translateX(-50%);
    width: 40px;
    height: 2px;
    background: linear-gradient(90deg, #d4af37, #f4e4bc);
    border-radius: 1px;
    opacity: 0;
    transition: all 0.4s ease;
}

.culture-card:hover h3::after {
    opacity: 1;
    width: 60px;
}

.culture-card p {
    color: #555;
    line-height: 1.7;
    font-size: 1rem;
    margin-bottom: 25px;
    text-align: center;
}

.culture-keywords {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    justify-content: center;
    margin-top: 20px;
}

.culture-keywords span {
    background: linear-gradient(135deg, rgba(212, 175, 55, 0.1), rgba(244, 228, 188, 0.15));
    color: #d4af37;
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    border: 1px solid rgba(212, 175, 55, 0.2);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.culture-keywords span::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
    transition: left 0.5s ease;
}

.culture-keywords span:hover::before {
    left: 100%;
}

.culture-keywords span:hover {
    transform: translateY(-2px) scale(1.05);
    box-shadow: 0 6px 16px rgba(212, 175, 55, 0.25);
    background: linear-gradient(135deg, #d4af37, #f4e4bc);
    color: white;
    border-color: #d4af37;
}

/* 茶道文化引言区域 */
.culture-intro {
    text-align: center;
    margin: 0 auto 50px;
    padding: 40px 20px;
    background: linear-gradient(135deg, rgba(212, 175, 55, 0.05), rgba(244, 228, 188, 0.08));
    border-radius: 20px;
    border: 1px solid rgba(212, 175, 55, 0.1);
    position: relative;
    overflow: hidden;
    max-width: 1200px;
}

.culture-intro::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="tea-pattern" x="0" y="0" width="20" height="20" patternUnits="userSpaceOnUse"><circle cx="10" cy="10" r="1" fill="%23d4af37" opacity="0.1"/></pattern></defs><rect width="100" height="100" fill="url(%23tea-pattern)"/></svg>');
    opacity: 0.3;
    pointer-events: none;
}

.culture-intro h3 {
    font-size: 2.2rem;
    color: #2c3e50;
    margin-bottom: 20px;
    font-weight: 700;
    font-family: 'Noto Serif SC', serif;
    position: relative;
    z-index: 1;
}

.culture-intro h3::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 3px;
    background: linear-gradient(90deg, #d4af37, #f4e4bc, #d4af37);
    border-radius: 2px;
}

.culture-intro p {
    color: #666;
    font-size: 1.1rem;
    line-height: 1.7;
    max-width: 600px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

/* 文化引用样式 */
.culture-quote {
    margin-top: 25px;
    padding-top: 20px;
    border-top: 1px solid rgba(212, 175, 55, 0.2);
    position: relative;
}

.culture-quote blockquote {
    font-style: italic;
    color: #666;
    font-size: 0.95rem;
    line-height: 1.6;
    margin: 0;
    position: relative;
    padding: 15px 25px;
    background: rgba(212, 175, 55, 0.05);
    border-radius: 10px;
    border-left: 3px solid #d4af37;
}

.culture-quote blockquote::before {
    content: '"';
    position: absolute;
    left: 8px;
    top: 5px;
    font-size: 1.5rem;
    color: #d4af37;
    font-family: serif;
    font-weight: bold;
}

.culture-quote blockquote::after {
    content: '"';
    position: absolute;
    right: 8px;
    bottom: 5px;
    font-size: 1.5rem;
    color: #d4af37;
    font-family: serif;
    font-weight: bold;
}

/* 文化传承时间线 */
.culture-heritage {
    margin: 60px auto 0;
    padding: 50px 20px;
    background: linear-gradient(135deg, rgba(248, 245, 240, 0.8), rgba(255, 255, 255, 0.9));
    border-radius: 20px;
    position: relative;
    max-width: 1200px;
}

.culture-heritage::before {
    content: '茶道传承';
    position: absolute;
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 1.2rem;
    font-weight: 700;
    color: #d4af37;
    background: white;
    padding: 8px 20px;
    border-radius: 20px;
    border: 2px solid #d4af37;
}

.heritage-timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
    padding-top: 40px;
}

.heritage-timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 40px;
    bottom: 0;
    width: 3px;
    background: linear-gradient(180deg, #d4af37, #f4e4bc, #d4af37);
    transform: translateX(-50%);
    border-radius: 2px;
}

.timeline-item {
    position: relative;
    margin: 40px 0;
    display: flex;
    align-items: center;
}

.timeline-item:nth-child(odd) {
    flex-direction: row;
}

.timeline-item:nth-child(even) {
    flex-direction: row-reverse;
}

.timeline-marker {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #d4af37, #f4e4bc);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 8px 24px rgba(212, 175, 55, 0.3);
    z-index: 2;
}

.timeline-year {
    color: white;
    font-weight: 700;
    font-size: 0.9rem;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
}

.timeline-content {
    flex: 1;
    max-width: 300px;
    background: white;
    padding: 25px;
    border-radius: 15px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    border: 1px solid rgba(212, 175, 55, 0.15);
    position: relative;
    transition: all 0.3s ease;
}

.timeline-item:nth-child(odd) .timeline-content {
    margin-right: 60px;
    text-align: right;
}

.timeline-item:nth-child(even) .timeline-content {
    margin-left: 60px;
    text-align: left;
}

.timeline-content::before {
    content: '';
    position: absolute;
    top: 50%;
    width: 0;
    height: 0;
    border: 10px solid transparent;
    transform: translateY(-50%);
}

.timeline-item:nth-child(odd) .timeline-content::before {
    right: -20px;
    border-left-color: white;
}

.timeline-item:nth-child(even) .timeline-content::before {
    left: -20px;
    border-right-color: white;
}

.timeline-content:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(212, 175, 55, 0.2);
}

.timeline-content h4 {
    color: #2c3e50;
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 10px;
    font-family: 'Noto Serif SC', serif;
}

.timeline-content p {
    color: #666;
    font-size: 0.95rem;
    line-height: 1.6;
    margin: 0;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .culture-aspects {
        grid-template-columns: 1fr;
        gap: 25px;
        padding: 0 15px;
        max-width: 100%;
        margin: 40px 15px 0;
    }
    
    .culture-card {
        padding: 25px;
    }
    
    .culture-icon {
        font-size: 3rem;
    }
    
    .culture-card h3 {
        font-size: 1.5rem;
    }
    
    .culture-intro {
        padding: 30px 15px;
        margin: 0 15px 40px;
        max-width: calc(100% - 30px);
    }
    
    .culture-intro h3 {
        font-size: 1.8rem;
    }
    
    .culture-heritage {
        margin: 60px 15px 0;
        padding: 40px 15px;
        max-width: calc(100% - 30px);
    }
    
    .heritage-timeline::before {
        left: 30px;
        transform: none;
    }
    
    .timeline-item {
        flex-direction: column !important;
        align-items: flex-start;
        padding-left: 80px;
    }
    
    .timeline-marker {
        left: 30px;
        transform: none;
        width: 60px;
        height: 60px;
    }
    
    .timeline-content {
        max-width: none;
        margin: 20px 0 0 0 !important;
        text-align: left !important;
    }
    
    .timeline-content::before {
        display: none;
    }
}

.content-intro h3 {
    font-size: 2rem;
    color: #2c3e50;
    margin-bottom: 15px;
    position: relative;
    display: inline-block;
}

.content-intro h3::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, #d4af37, #f4e4bc);
    border-radius: 2px;
}

.content-intro p {
    color: #666;
    font-size: 1.1rem;
    line-height: 1.6;
    max-width: 600px;
    margin: 0 auto;
}

/* 功效卡片样式 */
.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.benefit-card.premium-benefit {
    background: rgba(255, 255, 255, 0.95);
    border-radius: 24px;
    padding: 35px;
    backdrop-filter: blur(15px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    transition: all 0.4s ease;
    position: relative;
    overflow: hidden;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
}

.benefit-card.premium-benefit::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 5px;
    background: linear-gradient(90deg, #d4af37, #f4e4bc, #d4af37);
    transform: scaleX(0);
    transition: transform 0.4s ease;
}

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

.benefit-card.premium-benefit:hover {
    transform: translateY(-15px);
    box-shadow: 0 25px 50px rgba(212, 175, 55, 0.25);
}

.benefit-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 25px;
}

.benefit-icon {
    position: relative;
    width: 70px;
    height: 70px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.icon-bg {
    position: absolute;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #d4af37, #f4e4bc);
    border-radius: 50%;
    opacity: 0.15;
    transition: all 0.4s ease;
}

.benefit-card.premium-benefit:hover .icon-bg {
    opacity: 0.25;
    transform: scale(1.15);
}

.benefit-icon svg {
    color: #d4af37;
    z-index: 1;
    transition: all 0.4s ease;
}

.benefit-card.premium-benefit:hover .benefit-icon svg {
    transform: scale(1.2);
}

.benefit-badge {
    background: linear-gradient(135deg, #d4af37, #f4e4bc);
    color: white;
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

.benefit-content h3 {
    color: #2c3e50;
    font-size: 1.5rem;
    margin-bottom: 15px;
    font-weight: 700;
}

.benefit-description {
    color: #555;
    line-height: 1.7;
    font-size: 1rem;
    margin-bottom: 25px;
}

.benefit-stats {
    display: flex;
    justify-content: space-between;
    gap: 20px;
}

.stat-item {
    text-align: center;
    flex: 1;
    padding: 15px;
    background: rgba(212, 175, 55, 0.05);
    border-radius: 12px;
    border: 1px solid rgba(212, 175, 55, 0.1);
}

.stat-value {
    display: block;
    font-size: 1.4rem;
    font-weight: 700;
    color: #d4af37;
    margin-bottom: 5px;
}

/* 冲泡时间线样式 */
.brewing-timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
    padding: 30px 0;
}

.timeline-line {
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 4px;
    background: linear-gradient(180deg, #d4af37, #f4e4bc, #d4af37);
    transform: translateX(-50%);
    border-radius: 2px;
}

.step-item {
    position: relative;
    margin-bottom: 40px;
    display: flex;
    align-items: center;
    gap: 30px;
}

.step-item:nth-child(even) {
    flex-direction: row-reverse;
}

.step-marker {
    position: relative;
    width: 70px;
    height: 70px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    z-index: 2;
}

.step-number {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, #d4af37, #f4e4bc);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    font-weight: 700;
    color: white;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
    box-shadow: 0 6px 20px rgba(212, 175, 55, 0.3);
    position: relative;
    z-index: 1;
}

.step-pulse {
    position: absolute;
    width: 70px;
    height: 70px;
    border: 2px solid rgba(212, 175, 55, 0.3);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% {
        transform: scale(1);
        opacity: 1;
    }
    100% {
        transform: scale(1.3);
        opacity: 0;
    }
}

.step-content {
    flex: 1;
    background: rgba(255, 255, 255, 0.95);
    border-radius: 15px;
    padding: 25px;
    backdrop-filter: blur(15px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
    transition: all 0.4s ease;
    position: relative;
    overflow: hidden;
}

.step-content::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #d4af37, #f4e4bc);
    transform: scaleX(0);
    transition: transform 0.4s ease;
}

.step-content:hover::before {
    transform: scaleX(1);
}

.step-content:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(212, 175, 55, 0.2);
}

.step-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
}

.step-header h3 {
    color: #2c3e50;
    font-size: 1.4rem;
    font-weight: 700;
    margin: 0;
}

.step-time {
    background: rgba(212, 175, 55, 0.1);
    color: #d4af37;
    padding: 6px 15px;
    border-radius: 15px;
    font-size: 0.85rem;
    font-weight: 600;
    border: 1px solid rgba(212, 175, 55, 0.2);
}

.step-description {
    color: #555;
    line-height: 1.6;
    font-size: 0.95rem;
    margin-bottom: 20px;
}

.step-visual {
    display: flex;
    align-items: center;
    gap: 20px;
}

.visual-icon {
    font-size: 2rem;
    filter: drop-shadow(0 4px 8px rgba(0, 0, 0, 0.1));
}

.visual-tips {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.visual-tips span {
    background: rgba(212, 175, 55, 0.1);
    color: #d4af37;
    padding: 6px 12px;
    border-radius: 12px;
    font-size: 0.85rem;
    font-weight: 500;
    border: 1px solid rgba(212, 175, 55, 0.2);
}

/* 文化展示样式 */
.culture-showcase {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 35px;
    margin-top: 40px;
}

.culture-card.premium-culture {
    background: rgba(255, 255, 255, 0.95);
    border-radius: 24px;
    padding: 40px;
    backdrop-filter: blur(15px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    transition: all 0.4s ease;
    position: relative;
    overflow: hidden;
    box-shadow: 0 10px 35px rgba(0, 0, 0, 0.1);
}

.culture-card.premium-culture::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 5px;
    background: linear-gradient(90deg, #d4af37, #f4e4bc, #d4af37);
    transform: scaleX(0);
    transition: transform 0.4s ease;
}

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

.culture-card.premium-culture:hover {
    transform: translateY(-15px) scale(1.02);
    box-shadow: 0 25px 50px rgba(212, 175, 55, 0.25);
}

.culture-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 25px;
}

.culture-icon {
    font-size: 3rem;
    filter: drop-shadow(0 4px 12px rgba(0, 0, 0, 0.15));
    transition: all 0.4s ease;
}

.culture-card.premium-culture:hover .culture-icon {
    transform: scale(1.15) rotate(5deg);
}

.culture-badge {
    background: linear-gradient(135deg, #d4af37, #f4e4bc);
    color: white;
    padding: 8px 18px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

.culture-content h3 {
    color: #2c3e50;
    font-size: 1.6rem;
    margin-bottom: 20px;
    font-weight: 700;
}

.culture-description {
    color: #555;
    line-height: 1.7;
    font-size: 1rem;
    margin-bottom: 25px;
}

.culture-keywords {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    margin-bottom: 25px;
}

.keyword {
    background: rgba(212, 175, 55, 0.1);
    color: #d4af37;
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 500;
    border: 1px solid rgba(212, 175, 55, 0.2);
    transition: all 0.3s ease;
}

.keyword.premium {
    background: linear-gradient(135deg, #d4af37, #f4e4bc);
    color: white;
    border: none;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

.keyword:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(212, 175, 55, 0.3);
}

.culture-quote {
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid rgba(212, 175, 55, 0.2);
}

.culture-quote blockquote {
    font-style: italic;
    color: #666;
    font-size: 0.95rem;
    line-height: 1.6;
    margin: 0;
    position: relative;
    padding-left: 20px;
}

.culture-quote blockquote::before {
    content: '"';
    position: absolute;
    left: 0;
    top: -5px;
    font-size: 2rem;
    color: #d4af37;
    font-family: serif;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .tea-knowledge-section {
        padding: 80px 0;
    }
    
    .title-main {
        font-size: 2.5rem;
    }
    
    .category-tabs {
        flex-direction: column;
        align-items: center;
        gap: 1rem;
    }
    
    .tab-btn {
        width: 100%;
        max-width: 280px;
        padding: 1.2rem 1.5rem;
    }
    
    .tea-types-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .card-content {
        padding: 1.5rem;
    }
    
    .content-intro {
        padding: 1.5rem;
    }
}

/* 品质保证区域 */
.quality-assurance-section {
    padding: 80px 0;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    position: relative;
    overflow: hidden;
}

.quality-assurance-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="tea-pattern" x="0" y="0" width="20" height="20" patternUnits="userSpaceOnUse"><circle cx="10" cy="10" r="1" fill="%23d4af37" opacity="0.1"/></pattern></defs><rect width="100" height="100" fill="url(%23tea-pattern)"/></svg>');
    opacity: 0.3;
}

.quality-assurance-section .container {
    position: relative;
    z-index: 1;
}

/* 区域标题样式 */
.quality-assurance-section .section-header {
    text-align: center;
    margin-bottom: 60px;
}

.quality-assurance-section .section-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: linear-gradient(135deg, var(--tea-gold) 0%, var(--tea-accent) 100%);
    color: white;
    padding: 12px 24px;
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 24px;
    box-shadow: 0 4px 15px rgba(212, 175, 55, 0.3);
    animation: badgeFloat 3s ease-in-out infinite;
}

@keyframes badgeFloat {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-5px); }
}

.quality-assurance-section .section-title {
    margin-bottom: 24px;
}

.quality-assurance-section .title-main {
    display: block;
    font-family: var(--tea-font-elegant);
    font-size: 3.5rem;
    font-weight: 700;
    color: var(--tea-primary);
    margin-bottom: 8px;
    background: linear-gradient(135deg, var(--tea-primary) 0%, var(--tea-accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.quality-assurance-section .title-sub {
    display: block;
    font-size: 1.2rem;
    color: var(--tea-secondary);
    font-weight: 400;
    opacity: 0.8;
}

.quality-assurance-section .section-description {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--tea-text);
    max-width: 600px;
    margin: 0 auto;
    opacity: 0.9;
}

/* 内容布局 */
.quality-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: start;
}

/* 品质特色部分 */
.quality-features {
    display: flex;
    flex-direction: column;
    gap: 32px;
}

.quality-feature {
    display: flex;
    align-items: flex-start;
    gap: 20px;
    padding: 32px;
    background: white;
    border-radius: 20px;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.quality-feature::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: linear-gradient(135deg, var(--tea-gold) 0%, var(--tea-accent) 100%);
    transform: scaleY(0);
    transition: transform 0.4s ease;
}

.quality-feature:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.15);
}

.quality-feature:hover::before {
    transform: scaleY(1);
}

.feature-icon {
    flex-shrink: 0;
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, var(--tea-gold) 0%, var(--tea-accent) 100%);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    box-shadow: 0 8px 20px rgba(212, 175, 55, 0.3);
    transition: all 0.3s ease;
}

.quality-feature:hover .feature-icon {
    transform: scale(1.1) rotate(5deg);
    box-shadow: 0 12px 30px rgba(212, 175, 55, 0.4);
}

.feature-content h4 {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--tea-primary);
    margin-bottom: 8px;
    line-height: 1.3;
}

.feature-content p {
    font-size: 1rem;
    line-height: 1.6;
    color: var(--tea-text);
    opacity: 0.8;
    margin: 0;
}

/* 资质认证部分 */
.quality-certifications {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}

.cert-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 40px 24px;
    background: white;
    border-radius: 20px;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.cert-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--tea-gold) 0%, var(--tea-accent) 100%);
    transform: scaleX(0);
    transition: transform 0.4s ease;
}

.cert-item:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.15);
}

.cert-item:hover::before {
    transform: scaleX(1);
}

.cert-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--tea-gold) 0%, var(--tea-accent) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    margin-bottom: 20px;
    box-shadow: 0 8px 25px rgba(212, 175, 55, 0.3);
    transition: all 0.3s ease;
    position: relative;
}

.cert-icon::before {
    content: '';
    position: absolute;
    top: -4px;
    left: -4px;
    right: -4px;
    bottom: -4px;
    border: 2px solid rgba(212, 175, 55, 0.2);
    border-radius: 50%;
    animation: certGlow 3s ease-in-out infinite;
}

@keyframes certGlow {
    0%, 100% { 
        transform: scale(1);
        opacity: 0.5;
    }
    50% { 
        transform: scale(1.1);
        opacity: 0.8;
    }
}

.cert-item:hover .cert-icon {
    transform: scale(1.1);
    box-shadow: 0 12px 35px rgba(212, 175, 55, 0.4);
}

.cert-content h4 {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--tea-primary);
    margin-bottom: 8px;
    line-height: 1.3;
}

.cert-content p {
    font-size: 0.95rem;
    line-height: 1.5;
    color: var(--tea-text);
    opacity: 0.8;
    margin: 0;
}

/* 品质保证区域响应式设计 */
@media (max-width: 1024px) {
    .quality-content {
        grid-template-columns: 1fr;
        gap: 60px;
    }
    
    .quality-certifications {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    .quality-assurance-section {
        padding: 80px 0;
    }
    
    .quality-assurance-section .title-main {
        font-size: 2.5rem;
    }
    
    .quality-features {
        gap: 24px;
    }
    
    .quality-feature {
        padding: 24px;
        flex-direction: column;
        text-align: center;
        gap: 16px;
    }
    
    .quality-certifications {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .cert-item {
        padding: 32px 20px;
    }
}

@media (max-width: 480px) {
    .quality-assurance-section .title-main {
        font-size: 2rem;
    }
    
    .feature-icon {
        width: 56px;
        height: 56px;
    }
    
    .cert-icon {
        width: 70px;
        height: 70px;
    }
}

/* 联系咨询二维码样式 */
.qrcode-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-top: 12px;
}

.contact-qrcode {
    width: 120px;
    height: 120px;
    border-radius: 12px;
    object-fit: cover;
    margin-bottom: 8px;
    border: 2px solid rgba(255, 255, 255, 0.2);
    transition: all 0.3s ease;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.contact-qrcode:hover {
    transform: scale(1.05);
    border-color: rgba(255, 255, 255, 0.4);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.25);
}

.qrcode-description {
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.7);
    text-align: center;
    margin-top: 4px;
}