/* ============================
   洛阳丁氏紫砂官网 - 紫砂茶韵风格
   ============================ */

/* CSS变量 - 紫砂茶韵色系 */
:root {
    /* 主色调 - 紫砂土色 */
    --primary: #8B4513;
    --primary-light: #A0522D;
    --primary-dark: #6B3410;
    --primary-glow: rgba(139, 69, 19, 0.3);

    /* 辅助色 - 茶绿 */
    --accent: #5D7B4E;
    --accent-light: #7A9B6B;
    --accent-dark: #4A6340;

    /* 背景色 */
    --bg-cream: #FDF8F0;
    --bg-warm: #F5EDE0;
    --bg-dark: #2C1810;
    --bg-card: #FFFAF5;

    /* 文字色 */
    --text-primary: #2C1810;
    --text-secondary: #6B5B4E;
    --text-light: #A09080;
    --text-white: #FDF8F0;

    /* 边框和装饰 */
    --border: rgba(139, 69, 19, 0.15);
    --shadow: 0 4px 20px rgba(44, 24, 16, 0.08);
    --shadow-lg: 0 8px 40px rgba(44, 24, 16, 0.12);

    /* 字体 */
    --font-serif: 'Noto Serif SC', 'Songti SC', 'SimSun', serif;
    --font-sans: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;

    /* 间距 */
    --section-padding: 100px 0;
    --container-width: 1200px;
}

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

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

body {
    font-family: var(--font-sans);
    color: var(--text-primary);
    background: var(--bg-cream);
    line-height: 1.8;
    overflow-x: hidden;
}

.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 20px;
}

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

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

/* ============================
   导航栏
   ============================ */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 20px 0;
    transition: all 0.4s ease;
    background: transparent;
}

.navbar.scrolled {
    background: rgba(44, 24, 16, 0.95);
    backdrop-filter: blur(10px);
    padding: 12px 0;
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.2);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--text-white);
}

.logo-icon {
    font-family: var(--font-serif);
    font-size: 28px;
    font-weight: 700;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary);
    border-radius: 8px;
    border: 2px solid var(--primary-light);
}

.logo-text {
    font-family: var(--font-serif);
    font-size: 20px;
    font-weight: 600;
    letter-spacing: 2px;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 8px;
}

.nav-menu a {
    color: var(--text-white);
    padding: 10px 18px;
    border-radius: 6px;
    font-size: 15px;
    font-weight: 400;
    letter-spacing: 1px;
    position: relative;
    transition: all 0.3s ease;
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: 4px;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background: var(--primary-light);
    transition: width 0.3s ease;
}

.nav-menu a:hover::after,
.nav-menu a.active::after {
    width: 30px;
}

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

/* 移动端菜单按钮 */
.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 6px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
}

.nav-toggle span {
    width: 28px;
    height: 2px;
    background: var(--text-white);
    transition: all 0.3s ease;
}

/* ============================
   英雄区域
   ============================ */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #2C1810 0%, #4A2818 30%, #6B3410 60%, #8B4513 100%);
    overflow: hidden;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Ccircle cx='30' cy='30' r='1'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

.hero-particles {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    overflow: hidden;
}

.hero-content {
    position: relative;
    text-align: center;
    color: var(--text-white);
    z-index: 2;
    padding: 0 20px;
}

.hero-subtitle {
    font-size: 16px;
    letter-spacing: 4px;
    margin-bottom: 20px;
    color: var(--primary-light);
    font-weight: 300;
}

.hero-title {
    font-family: var(--font-serif);
    font-size: clamp(48px, 8vw, 80px);
    font-weight: 700;
    letter-spacing: 12px;
    margin-bottom: 15px;
    text-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
}

.hero-tagline {
    font-family: var(--font-serif);
    font-size: clamp(20px, 3vw, 28px);
    font-weight: 400;
    letter-spacing: 8px;
    color: var(--primary-light);
    margin-bottom: 25px;
}

.hero-divider {
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 30px 0;
}

.hero-divider::before,
.hero-divider::after {
    content: '';
    width: 80px;
    height: 1px;
    background: linear-gradient(to right, transparent, var(--primary-light), transparent);
}

.divider-leaf {
    margin: 0 20px;
    font-size: 24px;
}

.hero-desc {
    font-size: 16px;
    line-height: 2;
    color: rgba(253, 248, 240, 0.8);
    margin-bottom: 40px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

.btn {
    display: inline-block;
    padding: 14px 36px;
    border-radius: 6px;
    font-size: 15px;
    font-weight: 500;
    letter-spacing: 2px;
    cursor: pointer;
    transition: all 0.3s ease;
    border: none;
}

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

.btn-primary:hover {
    background: var(--primary-light);
    border-color: var(--primary-light);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px var(--primary-glow);
}

.btn-outline {
    background: transparent;
    color: var(--text-white);
    border: 2px solid rgba(253, 248, 240, 0.5);
}

.btn-outline:hover {
    background: rgba(253, 248, 240, 0.1);
    border-color: var(--text-white);
    transform: translateY(-2px);
}

.btn-sm {
    padding: 10px 24px;
    font-size: 14px;
}

.btn-full {
    width: 100%;
    text-align: center;
}

.hero-scroll {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    color: rgba(253, 248, 240, 0.6);
    text-align: center;
    font-size: 12px;
    letter-spacing: 2px;
}

.scroll-arrow {
    width: 20px;
    height: 20px;
    border-right: 2px solid rgba(253, 248, 240, 0.6);
    border-bottom: 2px solid rgba(253, 248, 240, 0.6);
    transform: rotate(45deg);
    margin: 10px auto 0;
    animation: scrollBounce 2s infinite;
}

@keyframes scrollBounce {
    0%, 100% { transform: rotate(45deg) translateY(0); }
    50% { transform: rotate(45deg) translateY(8px); }
}

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

.section-tag {
    display: inline-block;
    font-family: var(--font-serif);
    font-size: 14px;
    color: var(--primary);
    letter-spacing: 4px;
    margin-bottom: 15px;
    padding: 6px 20px;
    background: var(--primary-glow);
    border-radius: 20px;
}

.section-header.light .section-tag {
    color: var(--primary-light);
    background: rgba(253, 248, 240, 0.1);
}

.section-header h2 {
    font-family: var(--font-serif);
    font-size: clamp(32px, 5vw, 42px);
    font-weight: 600;
    color: var(--text-primary);
    letter-spacing: 4px;
    margin-bottom: 20px;
}

.section-header.light h2 {
    color: var(--text-white);
}

.section-line {
    width: 60px;
    height: 3px;
    background: linear-gradient(to right, var(--primary), var(--accent));
    margin: 0 auto 20px;
    border-radius: 2px;
}

.section-desc {
    font-size: 16px;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

.section-header.light .section-desc {
    color: rgba(253, 248, 240, 0.7);
}

/* ============================
   品牌简介
   ============================ */
.brand-intro {
    padding: var(--section-padding);
    background: var(--bg-cream);
}

.brand-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.brand-image {
    position: relative;
}

.image-frame {
    position: relative;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.image-frame::before {
    content: '';
    position: absolute;
    top: -15px;
    left: -15px;
    right: 15px;
    bottom: 15px;
    border: 3px solid var(--primary);
    border-radius: 12px;
    z-index: -1;
}

.placeholder-img {
    background: linear-gradient(135deg, var(--bg-warm) 0%, var(--primary-glow) 100%);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 10px;
    font-family: var(--font-serif);
    color: var(--primary);
}

.brand-content .image-frame .placeholder-img {
    height: 500px;
}

.placeholder-img span:first-child {
    font-size: 48px;
}

.placeholder-img span:last-child {
    font-size: 20px;
    letter-spacing: 4px;
}

.brand-content h3 {
    font-family: var(--font-serif);
    font-size: 28px;
    font-weight: 600;
    color: var(--primary-dark);
    margin-bottom: 25px;
    letter-spacing: 2px;
}

.brand-content p {
    font-size: 16px;
    color: var(--text-secondary);
    margin-bottom: 18px;
    line-height: 2;
}

.brand-content strong {
    color: var(--primary);
    font-weight: 600;
}

.brand-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-top: 40px;
    padding-top: 30px;
    border-top: 2px solid var(--border);
}

.stat {
    text-align: center;
}

.stat-number {
    font-family: var(--font-serif);
    font-size: 36px;
    font-weight: 700;
    color: var(--primary);
    display: block;
}

.stat-label {
    font-size: 14px;
    color: var(--text-secondary);
    margin-top: 5px;
}

/* ============================
   洛阳市紫砂文化协会
   ============================ */
.association {
    padding: 100px 0;
    background: linear-gradient(135deg, var(--bg-dark) 0%, #3D2317 100%);
}

.association-content {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 60px;
    align-items: start;
}

.association-text .section-tag {
    color: var(--primary-light);
    background: rgba(253, 248, 240, 0.1);
}

.association-text h2 {
    font-family: var(--font-serif);
    font-size: 36px;
    font-weight: 600;
    color: var(--text-white);
    margin-bottom: 10px;
    letter-spacing: 3px;
}

.association-subtitle {
    font-size: 16px;
    color: var(--primary-light);
    margin-bottom: 30px;
    letter-spacing: 2px;
}

.association-desc p {
    font-size: 15px;
    color: rgba(253, 248, 240, 0.7);
    line-height: 1.9;
    margin-bottom: 18px;
}

.association-desc strong {
    color: var(--primary-light);
}

.association-artists {
    margin-top: 40px;
    padding-top: 30px;
    border-top: 1px solid rgba(253, 248, 240, 0.15);
}

.association-artists h4 {
    font-family: var(--font-serif);
    font-size: 18px;
    color: var(--text-white);
    margin-bottom: 20px;
    letter-spacing: 2px;
}

.artists-list {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 15px;
}

.artist-item {
    background: rgba(253, 248, 240, 0.05);
    border: 1px solid rgba(253, 248, 240, 0.1);
    border-radius: 8px;
    padding: 12px 15px;
    text-align: center;
}

.artist-name {
    display: block;
    font-family: var(--font-serif);
    font-size: 16px;
    font-weight: 600;
    color: var(--text-white);
    margin-bottom: 4px;
}

.artist-type {
    font-size: 12px;
    color: var(--accent-light);
}

.association-highlights {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.highlight-card {
    background: rgba(253, 248, 240, 0.05);
    border: 1px solid rgba(253, 248, 240, 0.1);
    border-radius: 12px;
    padding: 30px 25px;
    text-align: center;
    transition: all 0.3s ease;
}

.highlight-card:hover {
    background: rgba(253, 248, 240, 0.08);
    transform: translateY(-5px);
}

.highlight-icon {
    font-size: 36px;
    margin-bottom: 15px;
}

.highlight-card h4 {
    font-family: var(--font-serif);
    font-size: 20px;
    font-weight: 600;
    color: var(--text-white);
    margin-bottom: 10px;
    letter-spacing: 1px;
}

.highlight-card p {
    font-size: 13px;
    color: rgba(253, 248, 240, 0.6);
    line-height: 1.7;
}

/* ============================
   企业理念
   ============================ */
.philosophy {
    padding: 80px 0;
    background: var(--bg-warm);
}

.philosophy-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.philosophy-card {
    text-align: center;
    padding: 40px 25px;
    background: var(--bg-card);
    border-radius: 12px;
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
    border: 1px solid var(--border);
}

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

.card-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 25px;
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.card-icon svg {
    width: 28px;
    height: 28px;
    color: var(--text-white);
}

.philosophy-card h4 {
    font-family: var(--font-serif);
    font-size: 20px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 15px;
    letter-spacing: 2px;
}

.philosophy-card p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.8;
}

/* ============================
   紫砂壶产品
   ============================ */
.products {
    padding: var(--section-padding);
    background: var(--bg-cream);
}

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

.filter-btn {
    padding: 10px 28px;
    background: transparent;
    border: 2px solid var(--border);
    border-radius: 30px;
    font-size: 14px;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.3s ease;
    letter-spacing: 1px;
}

.filter-btn:hover,
.filter-btn.active {
    background: var(--primary);
    border-color: var(--primary);
    color: var(--text-white);
}

.product-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.product-card {
    background: var(--bg-card);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
    border: 1px solid var(--border);
}

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

.product-image {
    position: relative;
    overflow: hidden;
}

.product-placeholder {
    height: 280px;
    background: linear-gradient(135deg, #D4B896 0%, #C4A882 50%, #B89B72 100%);
}

.product-placeholder span:first-child {
    font-size: 36px;
    opacity: 0.8;
}

.product-placeholder span:last-child {
    font-size: 18px;
    letter-spacing: 4px;
    color: var(--primary-dark);
}

.product-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(44, 24, 16, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

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

.product-info {
    padding: 25px;
}

.product-info h4 {
    font-family: var(--font-serif);
    font-size: 20px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
    letter-spacing: 2px;
}

.product-meta {
    font-size: 13px;
    color: var(--primary);
    margin-bottom: 12px;
    letter-spacing: 1px;
}

.product-desc {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.8;
}

.products-more {
    text-align: center;
    margin-top: 50px;
}

/* ============================
   茶叶专区
   ============================ */
.tea-section {
    padding: var(--section-padding);
    background: linear-gradient(135deg, var(--bg-dark) 0%, #3D2317 100%);
}

.tea-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.tea-card {
    background: rgba(253, 248, 240, 0.05);
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid rgba(253, 248, 240, 0.1);
    transition: all 0.3s ease;
}

.tea-card:hover {
    transform: translateY(-8px);
    background: rgba(253, 248, 240, 0.08);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.3);
}

.tea-placeholder {
    height: 220px;
    background: linear-gradient(135deg, var(--accent-dark), var(--accent));
}

.tea-placeholder span:first-child {
    font-size: 48px;
}

.tea-placeholder span:last-child {
    font-size: 18px;
    color: var(--text-white);
    letter-spacing: 4px;
}

.tea-content {
    padding: 30px;
}

.tea-content h4 {
    font-family: var(--font-serif);
    font-size: 22px;
    font-weight: 600;
    color: var(--text-white);
    margin-bottom: 8px;
    letter-spacing: 2px;
}

.tea-origin {
    font-size: 13px;
    color: var(--accent-light);
    margin-bottom: 15px;
}

.tea-desc {
    font-size: 14px;
    color: rgba(253, 248, 240, 0.7);
    line-height: 1.8;
    margin-bottom: 20px;
}

.tea-tags {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.tea-tags span {
    padding: 6px 16px;
    background: rgba(93, 123, 78, 0.3);
    border: 1px solid var(--accent);
    border-radius: 20px;
    font-size: 12px;
    color: var(--accent-light);
}

/* ============================
   茶道文化
   ============================ */
.tea-culture {
    padding: var(--section-padding);
    background: var(--bg-warm);
}

.culture-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.culture-text .section-tag {
    margin-bottom: 20px;
}

.culture-text h2 {
    font-family: var(--font-serif);
    font-size: 36px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 25px;
    letter-spacing: 3px;
    line-height: 1.4;
}

.culture-text p {
    font-size: 16px;
    color: var(--text-secondary);
    margin-bottom: 20px;
    line-height: 2;
}

.culture-features {
    margin-top: 35px;
    display: flex;
    flex-direction: column;
    gap: 25px;
}

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

.feature-icon {
    font-size: 32px;
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-card);
    border-radius: 12px;
    box-shadow: var(--shadow);
    flex-shrink: 0;
}

.feature h5 {
    font-family: var(--font-serif);
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 5px;
    letter-spacing: 1px;
}

.feature p {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 0;
}

.culture-placeholder {
    height: 500px;
    border-radius: 12px;
    background: linear-gradient(135deg, var(--accent-dark), var(--accent), var(--primary));
    box-shadow: var(--shadow-lg);
}

.culture-placeholder span:first-child {
    font-size: 48px;
}

.culture-placeholder span:last-child {
    font-size: 24px;
    color: var(--text-white);
    letter-spacing: 6px;
}

/* ============================
   新闻资讯
   ============================ */
.news {
    padding: var(--section-padding);
    background: var(--bg-cream);
}

.news-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
}

.news-card {
    background: var(--bg-card);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
    border: 1px solid var(--border);
}

.news-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.news-featured {
    grid-row: span 2;
}

.news-placeholder {
    height: 200px;
    background: linear-gradient(135deg, var(--primary-glow), var(--accent));
}

.news-featured .news-placeholder {
    height: 300px;
}

.news-placeholder span:first-child {
    font-size: 40px;
}

.news-placeholder span:last-child {
    font-size: 16px;
    color: var(--primary-dark);
    letter-spacing: 3px;
}

.news-content {
    padding: 25px;
}

.news-date {
    font-size: 13px;
    color: var(--primary);
    margin-bottom: 10px;
    display: block;
}

.news-content h4 {
    font-family: var(--font-serif);
    font-size: 20px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 12px;
    letter-spacing: 1px;
    line-height: 1.5;
}

.news-content p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 15px;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.news-link {
    font-size: 14px;
    color: var(--primary);
    font-weight: 500;
    letter-spacing: 1px;
}

.news-link:hover {
    color: var(--primary-light);
}

/* ============================
   联系我们
   ============================ */
.contact {
    padding: var(--section-padding);
    background: var(--bg-warm);
}

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

.contact-info h3,
.contact-form-wrapper h3 {
    font-family: var(--font-serif);
    font-size: 28px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 20px;
    letter-spacing: 2px;
}

.contact-info > p {
    font-size: 16px;
    color: var(--text-secondary);
    margin-bottom: 35px;
    line-height: 1.8;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 20px;
}

.contact-icon {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.contact-icon svg {
    width: 22px;
    height: 22px;
    color: var(--text-white);
}

.contact-item h5 {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 5px;
}

.contact-item p {
    font-size: 14px;
    color: var(--text-secondary);
}

.contact-qr {
    margin-top: 35px;
    text-align: center;
}

.qr-placeholder {
    width: 160px;
    height: 160px;
    margin: 0 auto 15px;
    border-radius: 12px;
    border: 2px dashed var(--border);
}

.qr-placeholder span:first-child {
    font-size: 28px;
}

.qr-placeholder span:last-child {
    font-size: 14px;
}

.contact-qr p {
    font-size: 13px;
    color: var(--text-secondary);
}

.contact-form-wrapper {
    background: var(--bg-card);
    padding: 40px;
    border-radius: 12px;
    box-shadow: var(--shadow);
}

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

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 14px 20px;
    border: 2px solid var(--border);
    border-radius: 8px;
    font-size: 15px;
    font-family: var(--font-sans);
    color: var(--text-primary);
    background: var(--bg-cream);
    transition: all 0.3s ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 4px var(--primary-glow);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--text-light);
}

.form-group select {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%236B5B4E' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 15px center;
}

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

/* ============================
   页脚
   ============================ */
.footer {
    background: var(--bg-dark);
    color: var(--text-white);
    padding: 80px 0 30px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 50px;
}

.footer-brand p {
    font-size: 14px;
    color: rgba(253, 248, 240, 0.6);
    margin-top: 20px;
    line-height: 1.8;
}

.footer-links h5,
.footer-contact h5 {
    font-family: var(--font-serif);
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 25px;
    letter-spacing: 2px;
}

.footer-links ul {
    list-style: none;
}

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

.footer-links a {
    font-size: 14px;
    color: rgba(253, 248, 240, 0.6);
    transition: all 0.3s ease;
}

.footer-links a:hover {
    color: var(--primary-light);
    padding-left: 5px;
}

.footer-contact p {
    font-size: 14px;
    color: rgba(253, 248, 240, 0.6);
    margin-bottom: 10px;
}

.footer-bottom {
    padding-top: 30px;
    border-top: 1px solid rgba(253, 248, 240, 0.1);
    text-align: center;
}

.footer-bottom p {
    font-size: 13px;
    color: rgba(253, 248, 240, 0.5);
}

.footer-bottom a {
    color: rgba(253, 248, 240, 0.6);
}

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

/* ============================
   返回顶部
   ============================ */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: var(--primary);
    color: var(--text-white);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px var(--primary-glow);
    z-index: 999;
}

.back-to-top svg {
    width: 20px;
    height: 20px;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    background: var(--primary-light);
    transform: translateY(-3px);
}

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

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

.animate-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s ease;
}

.animate-on-scroll.animated {
    opacity: 1;
    transform: translateY(0);
}

/* ============================
   响应式设计
   ============================ */
@media (max-width: 1024px) {
    .brand-grid,
    .culture-content,
    .contact-grid,
    .association-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .product-grid,
    .tea-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .philosophy-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .artists-list {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .nav-toggle {
        display: flex;
    }

    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 280px;
        height: 100vh;
        background: rgba(44, 24, 16, 0.98);
        flex-direction: column;
        padding: 80px 30px 30px;
        transition: right 0.3s ease;
        box-shadow: -5px 0 30px rgba(0, 0, 0, 0.3);
    }

    .nav-menu.active {
        right: 0;
    }

    .nav-menu a {
        padding: 15px 0;
        border-bottom: 1px solid rgba(253, 248, 240, 0.1);
        display: block;
    }

    .nav-menu a::after {
        display: none;
    }

    .hero-title {
        letter-spacing: 6px;
    }

    .hero-tagline {
        letter-spacing: 4px;
    }

    .brand-content h3,
    .culture-text h2 {
        font-size: 24px;
    }

    .product-grid,
    .tea-grid {
        grid-template-columns: 1fr;
    }

    .philosophy-grid {
        grid-template-columns: 1fr;
    }

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

    .contact-form-wrapper {
        padding: 25px;
    }

    .brand-stats {
        grid-template-columns: repeat(3, 1fr);
        gap: 15px;
    }

    .stat-number {
        font-size: 28px;
    }
}

@media (max-width: 480px) {
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }

    .btn {
        width: 100%;
        max-width: 250px;
        text-align: center;
    }

    .product-filters {
        gap: 10px;
    }

    .filter-btn {
        padding: 8px 20px;
        font-size: 13px;
    }
}

/* ============================
   特殊效果
   ============================ */
/* 茶叶飘落效果粒子 */
.particle {
    position: absolute;
    width: 10px;
    height: 10px;
    background: rgba(253, 248, 240, 0.1);
    border-radius: 50%;
    pointer-events: none;
    animation: float linear infinite;
}

@keyframes float {
    0% {
        transform: translateY(100vh) rotate(0deg);
        opacity: 0;
    }
    10% {
        opacity: 1;
    }
    90% {
        opacity: 1;
    }
    100% {
        transform: translateY(-100px) rotate(720deg);
        opacity: 0;
    }
}

/* 滚动条样式 */
::-webkit-scrollbar {
    width: 8px;
}

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

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

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

/* 选中文本样式 */
::selection {
    background: var(--primary-glow);
    color: var(--text-primary);
}

/* ============================
   地图链接样式
   ============================ */
.map-link {
    color: var(--text-secondary);
    text-decoration: none;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    border-bottom: 1px dashed var(--primary-glow);
    padding-bottom: 2px;
}

.map-link:hover {
    color: var(--primary);
    border-bottom-color: var(--primary);
}

.map-icon {
    font-size: 16px;
    transition: transform 0.3s ease;
}

.map-link:hover .map-icon {
    transform: scale(1.2);
}

.map-link-footer {
    color: rgba(253, 248, 240, 0.6);
    text-decoration: none;
    transition: all 0.3s ease;
    border-bottom: 1px dashed rgba(253, 248, 240, 0.3);
    padding-bottom: 2px;
}

.map-link-footer:hover {
    color: var(--primary-light);
    border-bottom-color: var(--primary-light);
}

.map-link-cta {
    color: rgba(253, 248, 240, 0.7);
    text-decoration: none;
    transition: all 0.3s ease;
    border-bottom: 1px dashed rgba(253, 248, 240, 0.4);
    padding-bottom: 2px;
}

.map-link-cta:hover {
    color: var(--text-white);
    border-bottom-color: var(--text-white);
}