/* ===========================
   新疆红帆生物科技有限公司 - 官网样式
   简约大气 · 企业官网
   =========================== */

/* ===== CSS Variables ===== */
:root {
    /* 主色调 - 番茄红 */
    --primary: #9B1B1B;
    --primary-light: #C0392B;
    --primary-dark: #6B1212;
    --primary-bg: #FDF2F2;
    
    /* 辅助色 - 叶黄素金 */
    --secondary: #C9A227;
    --secondary-light: #E8C84A;
    --secondary-bg: #FDF8EC;
    
    /* 自然绿 */
    --accent: #2E7D32;
    --accent-light: #4CAF50;
    --accent-bg: #F0F7F0;
    
    /* 中性色 */
    --text-primary: #1a1a2e;
    --text-secondary: #4a4a5a;
    --text-muted: #8a8a9a;
    --text-light: #ffffff;
    
    --bg-white: #ffffff;
    --bg-light: #f7f8fa;
    --bg-gray: #f0f1f3;
    --border: #e5e7eb;
    --border-light: #f0f1f3;
    
    /* 尺寸 */
    --header-height: 72px;
    --max-width: 1280px;
    --radius: 12px;
    --radius-sm: 8px;
    --radius-lg: 20px;
    
    /* 阴影 */
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
    --shadow: 0 4px 20px rgba(0,0,0,0.08);
    --shadow-lg: 0 10px 40px rgba(0,0,0,0.12);
    --shadow-primary: 0 8px 30px rgba(155,27,27,0.25);
    
    /* 过渡 */
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

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

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

body {
    font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
    color: var(--text-primary);
    background: var(--bg-white);
    line-height: 1.7;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

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

ul,
ol {
    list-style: none;
}

/* ===== Container ===== */
.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 32px;
}

.container-narrow {
    max-width: 960px;
    margin: 0 auto;
    padding: 0 32px;
}

/* ===== Header ===== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--header-height);
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-light);
    z-index: 1000;
    transition: var(--transition);
}

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

.header-inner {
    max-width: var(--max-width);
    height: 100%;
    margin: 0 auto;
    padding: 0 32px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

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

.logo-icon {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 20px;
    font-weight: 700;
    box-shadow: var(--shadow-primary);
    flex-shrink: 0;
}

.logo-text {
    display: flex;
    flex-direction: column;
    line-height: 1.3;
}

.logo-text .cn {
    font-size: 16px;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: 0.5px;
}

.logo-text .en {
    font-size: 10px;
    color: var(--text-muted);
    letter-spacing: 1px;
    text-transform: uppercase;
}

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

.nav a {
    padding: 8px 20px;
    font-size: 15px;
    font-weight: 500;
    color: var(--text-secondary);
    border-radius: var(--radius-sm);
    position: relative;
}

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

.nav a.active {
    color: var(--primary);
}

.nav a.active::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 50%;
    transform: translateX(-50%);
    width: 24px;
    height: 3px;
    background: var(--primary);
    border-radius: 2px;
}

.nav-cta {
    margin-left: 16px;
    padding: 8px 24px !important;
    background: var(--primary);
    color: white !important;
    border-radius: 30px;
    font-size: 14px;
}

.nav-cta:hover {
    background: var(--primary-dark) !important;
    transform: translateY(-1px);
    box-shadow: var(--shadow-primary);
}

/* Mobile menu toggle */
.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 8px;
}

.menu-toggle span {
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: var(--transition);
}

.menu-toggle.active span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

.menu-toggle.active span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 32px;
    font-size: 15px;
    font-weight: 600;
    border-radius: 30px;
    border: none;
    cursor: pointer;
    transition: var(--transition);
    letter-spacing: 0.5px;
}

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

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 12px 35px rgba(155,27,27,0.35);
}

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

.btn-outline:hover {
    border-color: var(--primary);
    color: var(--primary);
    background: var(--primary-bg);
}

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

.btn-white:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-ghost-white {
    background: transparent;
    color: white;
    border: 2px solid rgba(255,255,255,0.5);
}

.btn-ghost-white:hover {
    background: white;
    color: var(--primary);
    border-color: white;
}

/* ===== Section ===== */
.section {
    padding: 100px 0;
}

.section-sm {
    padding: 60px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 64px;
}

.section-label {
    display: inline-block;
    padding: 4px 16px;
    background: var(--primary-bg);
    color: var(--primary);
    font-size: 13px;
    font-weight: 600;
    border-radius: 20px;
    margin-bottom: 16px;
    letter-spacing: 1px;
}

.section-title {
    font-size: 36px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 16px;
    letter-spacing: 0.5px;
}

.section-subtitle {
    font-size: 16px;
    color: var(--text-muted);
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.8;
}

/* ===== Hero ===== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    overflow: hidden;
    padding-top: var(--header-height);
}

.hero-bg {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, #1a0a0a 0%, #2d0f0f 30%, #1a1a2e 70%, #0f1a0f 100%);
    z-index: -2;
}

.hero-bg::before {
    content: '';
    position: absolute;
    inset: 0;
    background: 
        radial-gradient(ellipse at 20% 30%, rgba(155,27,27,0.4) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 70%, rgba(201,162,39,0.15) 0%, transparent 50%),
        radial-gradient(ellipse at 50% 50%, rgba(46,125,50,0.1) 0%, transparent 60%);
}

.hero-bg::after {
    content: '';
    position: absolute;
    inset: 0;
    background-image: 
        linear-gradient(rgba(255,255,255,0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.02) 1px, transparent 1px);
    background-size: 60px 60px;
}

.hero-content {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
    width: 100%;
}

.hero-text {
    color: white;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 18px;
    background: rgba(255,255,255,0.1);
    border: 1px solid rgba(255,255,255,0.15);
    border-radius: 30px;
    font-size: 13px;
    color: rgba(255,255,255,0.8);
    margin-bottom: 28px;
    backdrop-filter: blur(10px);
}

.hero-badge .dot {
    width: 8px;
    height: 8px;
    background: var(--secondary-light);
    border-radius: 50%;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(1.3); }
}

.hero-title {
    font-size: 52px;
    font-weight: 800;
    line-height: 1.25;
    margin-bottom: 24px;
    letter-spacing: 1px;
}

.hero-title .highlight {
    background: linear-gradient(135deg, var(--secondary-light), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-desc {
    font-size: 17px;
    line-height: 1.9;
    color: rgba(255,255,255,0.7);
    margin-bottom: 40px;
    max-width: 520px;
}

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

.hero-visual {
    position: relative;
    height: 480px;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Hero floating cards */
.hero-card {
    position: absolute;
    background: rgba(255,255,255,0.08);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255,255,255,0.12);
    border-radius: var(--radius-lg);
    padding: 24px;
    color: white;
    animation: float 6s ease-in-out infinite;
}

.hero-card-1 {
    top: 0;
    left: 20px;
    width: 200px;
    animation-delay: 0s;
}

.hero-card-2 {
    bottom: 40px;
    right: 0;
    width: 220px;
    animation-delay: 2s;
}

.hero-card-3 {
    bottom: 0;
    left: 60px;
    width: 180px;
    animation-delay: 4s;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-15px); }
}

.hero-card-icon {
    width: 44px;
    height: 44px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 14px;
    font-size: 22px;
}

.hero-card-1 .hero-card-icon {
    background: rgba(155,27,27,0.3);
}

.hero-card-2 .hero-card-icon {
    background: rgba(201,162,39,0.3);
}

.hero-card-3 .hero-card-icon {
    background: rgba(46,125,50,0.3);
}

.hero-card-title {
    font-size: 15px;
    font-weight: 600;
    margin-bottom: 6px;
}

.hero-card-desc {
    font-size: 12px;
    color: rgba(255,255,255,0.6);
    line-height: 1.5;
}

/* Hero stats */
.hero-stats {
    display: flex;
    gap: 48px;
    margin-top: 48px;
    padding-top: 36px;
    border-top: 1px solid rgba(255,255,255,0.1);
}

.hero-stat-value {
    font-size: 32px;
    font-weight: 800;
    color: white;
    line-height: 1;
}

.hero-stat-value .unit {
    font-size: 16px;
    font-weight: 500;
    color: var(--secondary-light);
}

.hero-stat-label {
    font-size: 13px;
    color: rgba(255,255,255,0.5);
    margin-top: 8px;
}

/* ===== Page Banner (sub pages) ===== */
.page-banner {
    position: relative;
    padding: 160px 0 80px;
    background: linear-gradient(135deg, #1a0a0a 0%, #2d0f0f 50%, #1a1a2e 100%);
    overflow: hidden;
}

.page-banner::before {
    content: '';
    position: absolute;
    inset: 0;
    background: 
        radial-gradient(ellipse at 30% 40%, rgba(155,27,27,0.3) 0%, transparent 50%),
        radial-gradient(ellipse at 70% 60%, rgba(201,162,39,0.1) 0%, transparent 50%);
}

.page-banner::after {
    content: '';
    position: absolute;
    inset: 0;
    background-image: 
        linear-gradient(rgba(255,255,255,0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.02) 1px, transparent 1px);
    background-size: 60px 60px;
}

.page-banner-content {
    position: relative;
    z-index: 1;
    text-align: center;
    color: white;
}

.page-banner h1 {
    font-size: 44px;
    font-weight: 800;
    margin-bottom: 16px;
    letter-spacing: 1px;
}

.page-banner p {
    font-size: 16px;
    color: rgba(255,255,255,0.6);
    max-width: 500px;
    margin: 0 auto;
}

.breadcrumb {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-top: 24px;
    font-size: 14px;
    color: rgba(255,255,255,0.5);
}

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

/* ===== Features Grid ===== */
.features-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.feature-card {
    background: var(--bg-white);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 36px 28px;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

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

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

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

.feature-icon {
    width: 56px;
    height: 56px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    font-size: 26px;
}

.feature-icon.red {
    background: var(--primary-bg);
    color: var(--primary);
}

.feature-icon.gold {
    background: var(--secondary-bg);
    color: var(--secondary);
}

.feature-icon.green {
    background: var(--accent-bg);
    color: var(--accent);
}

.feature-icon.blue {
    background: #EEF4FF;
    color: #2563EB;
}

.feature-card h3 {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 10px;
    color: var(--text-primary);
}

.feature-card p {
    font-size: 14px;
    color: var(--text-muted);
    line-height: 1.7;
}

/* ===== About Preview ===== */
.about-preview {
    background: var(--bg-light);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: center;
}

.about-image {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    height: 420px;
    background: linear-gradient(135deg, var(--primary-dark), var(--primary));
}

.about-image-pattern {
    position: absolute;
    inset: 0;
    background: 
        radial-gradient(circle at 30% 40%, rgba(255,255,255,0.1) 0%, transparent 40%),
        radial-gradient(circle at 70% 60%, rgba(201,162,39,0.2) 0%, transparent 40%);
}

.about-image-content {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: white;
    text-align: center;
    padding: 40px;
}

.about-image-content .big-num {
    font-size: 64px;
    font-weight: 800;
    color: var(--secondary-light);
    line-height: 1;
}

.about-image-content .big-label {
    font-size: 15px;
    color: rgba(255,255,255,0.7);
    margin-top: 12px;
}

.about-text .section-label {
    margin-bottom: 16px;
}

.about-text h2 {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 20px;
    line-height: 1.4;
}

.about-text p {
    color: var(--text-secondary);
    margin-bottom: 16px;
    line-height: 1.9;
}

.about-list {
    margin: 28px 0;
}

.about-list li {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    margin-bottom: 14px;
    font-size: 15px;
    color: var(--text-secondary);
}

.about-list li::before {
    content: '';
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--primary-bg);
    flex-shrink: 0;
    margin-top: 3px;
    position: relative;
}

.about-list li .check {
    color: var(--primary);
    font-weight: 700;
    margin-right: 8px;
}

/* ===== Products Preview ===== */
.products-preview-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
}

.product-card {
    background: var(--bg-white);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: var(--transition);
}

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

.product-card-visual {
    height: 280px;
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}

.product-card-visual.red {
    background: linear-gradient(135deg, #2d0f0f 0%, #9B1B1B 50%, #C0392B 100%);
}

.product-card-visual.gold {
    background: linear-gradient(135deg, #2d2410 0%, #C9A227 50%, #E8C84A 100%);
}

.product-card-visual::before {
    content: '';
    position: absolute;
    inset: 0;
    background: 
        radial-gradient(circle at 30% 40%, rgba(255,255,255,0.15) 0%, transparent 40%),
        radial-gradient(circle at 70% 60%, rgba(255,255,255,0.08) 0%, transparent 40%);
}

.product-bottle {
    position: relative;
    z-index: 1;
    width: 100px;
    height: 160px;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.product-bottle-cap {
    width: 50px;
    height: 20px;
    background: rgba(255,255,255,0.3);
    border-radius: 4px 4px 0 0;
}

.product-bottle-body {
    width: 80px;
    height: 140px;
    background: rgba(255,255,255,0.15);
    backdrop-filter: blur(10px);
    border-radius: 8px 8px 12px 12px;
    border: 1px solid rgba(255,255,255,0.2);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 12px;
}

.product-bottle-label {
    width: 56px;
    height: 60px;
    background: rgba(255,255,255,0.25);
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 11px;
    font-weight: 700;
    color: white;
    text-align: center;
    line-height: 1.3;
}

.product-card-body {
    padding: 32px;
}

.product-tag {
    display: inline-block;
    padding: 3px 12px;
    font-size: 12px;
    font-weight: 600;
    border-radius: 12px;
    margin-bottom: 12px;
}

.product-tag.red {
    background: var(--primary-bg);
    color: var(--primary);
}

.product-tag.gold {
    background: var(--secondary-bg);
    color: var(--secondary);
}

.product-card-body h3 {
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 10px;
    color: var(--text-primary);
}

.product-card-body p {
    font-size: 14px;
    color: var(--text-muted);
    line-height: 1.7;
    margin-bottom: 20px;
}

.product-spec {
    display: flex;
    gap: 16px;
    padding-top: 16px;
    border-top: 1px solid var(--border-light);
}

.product-spec-item {
    flex: 1;
}

.product-spec-item .label {
    font-size: 12px;
    color: var(--text-muted);
    margin-bottom: 4px;
}

.product-spec-item .value {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
}

/* ===== CTA Section ===== */
.cta-section {
    position: relative;
    padding: 80px 0;
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
    overflow: hidden;
}

.cta-section::before {
    content: '';
    position: absolute;
    inset: 0;
    background: 
        radial-gradient(ellipse at 20% 50%, rgba(201,162,39,0.2) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 50%, rgba(46,125,50,0.1) 0%, transparent 50%);
}

.cta-content {
    position: relative;
    z-index: 1;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 40px;
}

.cta-text h2 {
    font-size: 32px;
    font-weight: 700;
    color: white;
    margin-bottom: 10px;
}

.cta-text p {
    font-size: 16px;
    color: rgba(255,255,255,0.7);
}

/* ===== Stats Section ===== */
.stats-section {
    background: var(--bg-light);
    padding: 60px 0;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 32px;
    text-align: center;
}

.stat-item {
    padding: 20px;
}

.stat-number {
    font-size: 48px;
    font-weight: 800;
    color: var(--primary);
    line-height: 1;
}

.stat-number .unit {
    font-size: 20px;
    color: var(--text-muted);
}

.stat-label {
    font-size: 15px;
    color: var(--text-secondary);
    margin-top: 12px;
}

/* ===== About Page ===== */
.about-section {
    padding: 80px 0;
}

.about-detail-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: center;
}

.about-detail-image {
    border-radius: var(--radius-lg);
    overflow: hidden;
    height: 480px;
    position: relative;
}

.about-detail-image.bg-red {
    background: linear-gradient(135deg, #2d0f0f, var(--primary), #C0392B);
}

.about-detail-image.bg-green {
    background: linear-gradient(135deg, #0f1a0f, var(--accent), #4CAF50);
}

.about-detail-image-pattern {
    position: absolute;
    inset: 0;
    background: 
        radial-gradient(circle at 30% 40%, rgba(255,255,255,0.1) 0%, transparent 40%),
        radial-gradient(circle at 70% 60%, rgba(255,255,255,0.05) 0%, transparent 40%);
}

.about-detail-image-icon {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 100px;
    color: rgba(255,255,255,0.15);
}

.about-detail-text h2 {
    font-size: 30px;
    font-weight: 700;
    margin-bottom: 20px;
    line-height: 1.4;
}

.about-detail-text p {
    color: var(--text-secondary);
    line-height: 1.9;
    margin-bottom: 16px;
}

/* Culture cards */
.culture-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.culture-card {
    text-align: center;
    padding: 48px 32px;
    background: var(--bg-white);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    transition: var(--transition);
}

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

.culture-icon {
    width: 72px;
    height: 72px;
    margin: 0 auto 24px;
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    background: var(--primary-bg);
}

.culture-card h3 {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 12px;
}

.culture-card p {
    color: var(--text-muted);
    line-height: 1.7;
}

/* Timeline */
.timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
    padding: 40px 0;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--border);
    transform: translateX(-50%);
}

.timeline-item {
    position: relative;
    padding: 0 48px;
    margin-bottom: 48px;
    width: 50%;
}

.timeline-item:nth-child(odd) {
    left: 0;
}

.timeline-item:nth-child(even) {
    left: 50%;
}

.timeline-dot {
    position: absolute;
    top: 4px;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--primary);
    border: 3px solid white;
    box-shadow: 0 0 0 3px var(--primary-bg);
}

.timeline-item:nth-child(odd) .timeline-dot {
    right: -8px;
}

.timeline-item:nth-child(even) .timeline-dot {
    left: -8px;
}

.timeline-content {
    background: var(--bg-white);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px 28px;
    transition: var(--transition);
}

.timeline-content:hover {
    box-shadow: var(--shadow);
    border-color: var(--primary-light);
}

.timeline-year {
    font-size: 20px;
    font-weight: 800;
    color: var(--primary);
    margin-bottom: 8px;
}

.timeline-content h4 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 8px;
}

.timeline-content p {
    font-size: 14px;
    color: var(--text-muted);
    line-height: 1.7;
}

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

.honor-card {
    background: var(--bg-white);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 36px 28px;
    text-align: center;
    transition: var(--transition);
}

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

.honor-badge {
    width: 60px;
    height: 60px;
    margin: 0 auto 16px;
    border-radius: 50%;
    background: var(--secondary-bg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
}

.honor-card h4 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.honor-card p {
    font-size: 13px;
    color: var(--text-muted);
}

/* ===== Products Page ===== */
.products-hero-section {
    padding: 80px 0;
    background: var(--bg-light);
}

.product-detail-card {
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow);
    margin-bottom: 48px;
}

.product-detail-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0;
    align-items: stretch;
}

.product-detail-visual {
    padding: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    min-height: 420px;
}

.product-detail-visual.red {
    background: linear-gradient(135deg, #2d0f0f 0%, var(--primary) 50%, #C0392B 100%);
}

.product-detail-visual.gold {
    background: linear-gradient(135deg, #2d2410 0%, #C9A227 50%, #E8C84A 100%);
}

.product-detail-visual::before {
    content: '';
    position: absolute;
    inset: 0;
    background: 
        radial-gradient(circle at 30% 30%, rgba(255,255,255,0.12) 0%, transparent 40%),
        radial-gradient(circle at 70% 70%, rgba(255,255,255,0.06) 0%, transparent 40%);
}

.product-detail-bottle {
    position: relative;
    z-index: 1;
    display: flex;
    gap: 24px;
    align-items: flex-end;
}

.bottle {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.bottle-cap {
    width: 56px;
    height: 24px;
    background: rgba(255,255,255,0.25);
    border-radius: 4px 4px 0 0;
    border: 1px solid rgba(255,255,255,0.15);
    border-bottom: none;
}

.bottle-body {
    width: 90px;
    height: 180px;
    background: rgba(255,255,255,0.12);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-radius: 8px 8px 14px 14px;
    border: 1px solid rgba(255,255,255,0.18);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 16px 12px;
}

.bottle-body.small {
    width: 70px;
    height: 140px;
}

.bottle-label {
    width: 100%;
    background: rgba(255,255,255,0.2);
    border-radius: 4px;
    padding: 10px 8px;
    text-align: center;
    color: white;
}

.bottle-label .name {
    font-size: 10px;
    font-weight: 700;
    line-height: 1.3;
    margin-bottom: 4px;
}

.bottle-label .spec {
    font-size: 8px;
    color: rgba(255,255,255,0.7);
}

.product-detail-info {
    padding: 60px;
}

.product-detail-tag {
    display: inline-block;
    padding: 4px 14px;
    font-size: 13px;
    font-weight: 600;
    border-radius: 16px;
    margin-bottom: 16px;
}

.product-detail-tag.red {
    background: var(--primary-bg);
    color: var(--primary);
}

.product-detail-tag.gold {
    background: var(--secondary-bg);
    color: var(--secondary);
}

.product-detail-info h2 {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--text-primary);
}

.product-detail-info .desc {
    color: var(--text-secondary);
    line-height: 1.9;
    margin-bottom: 28px;
}

.product-ingredients {
    margin-bottom: 28px;
}

.product-ingredients h4 {
    font-size: 15px;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--text-primary);
}

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

.ingredient-tag {
    padding: 6px 14px;
    background: var(--bg-light);
    border: 1px solid var(--border);
    border-radius: 20px;
    font-size: 13px;
    color: var(--text-secondary);
}

.product-effects {
    margin-bottom: 28px;
}

.product-effects h4 {
    font-size: 15px;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.effect-list {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
}

.effect-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    color: var(--text-secondary);
}

.effect-item .check-icon {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--accent-bg);
    color: var(--accent);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    flex-shrink: 0;
}

.effect-item.red .check-icon {
    background: var(--primary-bg);
    color: var(--primary);
}

.product-spec-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    padding: 24px;
    background: var(--bg-light);
    border-radius: var(--radius);
}

.product-spec-grid .spec-item {
    text-align: center;
}

.product-spec-grid .spec-item .label {
    font-size: 12px;
    color: var(--text-muted);
    margin-bottom: 6px;
}

.product-spec-grid .spec-item .value {
    font-size: 15px;
    font-weight: 700;
    color: var(--text-primary);
}

/* Process section */
.process-section {
    background: var(--bg-light);
}

.process-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    position: relative;
}

.process-card {
    text-align: center;
    position: relative;
    padding: 40px 24px;
    background: var(--bg-white);
    border-radius: var(--radius);
    border: 1px solid var(--border);
    transition: var(--transition);
}

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

.process-num {
    width: 48px;
    height: 48px;
    margin: 0 auto 20px;
    border-radius: 50%;
    background: var(--primary);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    font-weight: 700;
}

.process-card h4 {
    font-size: 17px;
    font-weight: 600;
    margin-bottom: 10px;
}

.process-card p {
    font-size: 13px;
    color: var(--text-muted);
    line-height: 1.7;
}

/* ===== Contact Page ===== */
.contact-info-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-bottom: 64px;
}

.contact-info-card {
    text-align: center;
    padding: 40px 32px;
    background: var(--bg-white);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    transition: var(--transition);
}

.contact-info-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: transparent;
}

.contact-info-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 20px;
    border-radius: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
}

.contact-info-card h4 {
    font-size: 17px;
    font-weight: 600;
    margin-bottom: 8px;
}

.contact-info-card p {
    font-size: 14px;
    color: var(--text-muted);
    line-height: 1.7;
}

.contact-info-card .highlight-text {
    font-size: 18px;
    font-weight: 700;
    color: var(--primary);
}

/* Contact form */
.contact-form-section {
    background: var(--bg-light);
}

.contact-form-wrap {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: center;
}

.contact-form {
    background: var(--bg-white);
    padding: 48px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
}

.form-group {
    margin-bottom: 24px;
}

.form-group label {
    display: block;
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.form-group label .required {
    color: var(--primary);
    margin-left: 4px;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 12px 16px;
    font-size: 15px;
    font-family: inherit;
    border: 2px solid var(--border);
    border-radius: var(--radius-sm);
    background: var(--bg-light);
    color: var(--text-primary);
    transition: var(--transition);
}

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

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

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.contact-form .btn {
    width: 100%;
    justify-content: center;
}

.form-success {
    display: none;
    padding: 16px 20px;
    background: var(--accent-bg);
    border: 1px solid var(--accent-light);
    border-radius: var(--radius-sm);
    color: var(--accent);
    font-size: 14px;
    margin-bottom: 20px;
}

.form-success.show {
    display: block;
}

.contact-info-side h2 {
    font-size: 30px;
    font-weight: 700;
    margin-bottom: 20px;
    line-height: 1.4;
}

.contact-info-side p {
    color: var(--text-secondary);
    line-height: 1.9;
    margin-bottom: 28px;
}

.contact-info-list {
    margin-bottom: 32px;
}

.contact-info-list li {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    margin-bottom: 20px;
}

.contact-info-list .icon-box {
    width: 44px;
    height: 44px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    flex-shrink: 0;
}

.contact-info-list .info-label {
    font-size: 13px;
    color: var(--text-muted);
    margin-bottom: 4px;
}

.contact-info-list .info-value {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-primary);
}

/* Map section */
.map-section {
    padding: 0;
}

.map-wrap {
    height: 420px;
    background: var(--bg-light);
    position: relative;
    overflow: hidden;
}

.map-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #f0f1f3, #e5e7eb);
    position: relative;
}

.map-placeholder::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image: 
        linear-gradient(rgba(0,0,0,0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0,0,0,0.03) 1px, transparent 1px);
    background-size: 40px 40px;
}

.map-pin {
    position: relative;
    z-index: 1;
    text-align: center;
}

.map-pin-icon {
    width: 56px;
    height: 56px;
    margin: 0 auto 12px;
    background: var(--primary);
    border-radius: 50% 50% 50% 0;
    transform: rotate(-45deg);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-primary);
    animation: bounce 2s ease-in-out infinite;
}

.map-pin-icon span {
    transform: rotate(45deg);
    font-size: 24px;
}

@keyframes bounce {
    0%, 100% { transform: rotate(-45deg) translateY(0); }
    50% { transform: rotate(-45deg) translateY(-10px); }
}

.map-pin-text {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-primary);
}

.map-pin-sub {
    font-size: 13px;
    color: var(--text-muted);
    margin-top: 4px;
}

/* ===== Footer ===== */
.footer {
    background: #0f0f1a;
    color: rgba(255,255,255,0.6);
    padding: 64px 0 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 48px;
    margin-bottom: 48px;
}

.footer-brand .logo {
    margin-bottom: 20px;
}

.footer-brand .logo-text .cn {
    color: white;
}

.footer-brand p {
    font-size: 14px;
    line-height: 1.8;
    margin-bottom: 20px;
    color: rgba(255,255,255,0.5);
}

.footer-social {
    display: flex;
    gap: 12px;
}

.footer-social a {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    background: rgba(255,255,255,0.06);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    color: rgba(255,255,255,0.5);
}

.footer-social a:hover {
    background: var(--primary);
    color: white;
}

.footer-col h4 {
    font-size: 16px;
    font-weight: 600;
    color: white;
    margin-bottom: 20px;
}

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

.footer-col ul li a {
    font-size: 14px;
    color: rgba(255,255,255,0.5);
}

.footer-col ul li a:hover {
    color: var(--secondary-light);
}

.footer-contact li {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    margin-bottom: 14px;
    font-size: 14px;
    color: rgba(255,255,255,0.5);
}

.footer-contact li .icon {
    flex-shrink: 0;
    margin-top: 2px;
}

.footer-bottom {
    padding: 24px 0;
    border-top: 1px solid rgba(255,255,255,0.08);
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 13px;
    color: rgba(255,255,255,0.4);
}

.footer-bottom a {
    color: rgba(255,255,255,0.4);
}

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

.footer-bottom .icp {
    display: flex;
    align-items: center;
    gap: 16px;
}

/* ===== Animations ===== */
.fade-in-up {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

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

.fade-in {
    opacity: 0;
    transition: opacity 0.8s ease;
}

.fade-in.visible {
    opacity: 1;
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
    .hero-content {
        grid-template-columns: 1fr;
        gap: 48px;
    }
    
    .hero-visual {
        display: none;
    }
    
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .about-grid,
    .about-detail-grid,
    .contact-form-wrap {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 32px;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .culture-grid,
    .honors-grid {
        grid-template-columns: 1fr;
    }
    
    .product-detail-grid {
        grid-template-columns: 1fr;
    }
    
    .process-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .contact-info-grid {
        grid-template-columns: 1fr;
    }
    
    .products-preview-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .container,
    .container-narrow,
    .header-inner {
        padding: 0 20px;
    }
    
    .nav {
        position: fixed;
        top: var(--header-height);
        left: 0;
        right: 0;
        background: white;
        flex-direction: column;
        padding: 20px;
        gap: 4px;
        box-shadow: var(--shadow-lg);
        transform: translateY(-200%);
        transition: var(--transition);
        border-top: 1px solid var(--border);
    }
    
    .nav.open {
        transform: translateY(0);
    }
    
    .nav a {
        width: 100%;
        padding: 12px 20px;
    }
    
    .nav a.active::after {
        display: none;
    }
    
    .nav-cta {
        margin-left: 0;
        margin-top: 8px;
        text-align: center;
    }
    
    .menu-toggle {
        display: flex;
    }
    
    .hero-title {
        font-size: 34px;
    }
    
    .hero-desc {
        font-size: 15px;
    }
    
    .hero-stats {
        flex-wrap: wrap;
        gap: 24px;
    }
    
    .hero-stat-value {
        font-size: 26px;
    }
    
    .section {
        padding: 60px 0;
    }
    
    .section-title {
        font-size: 28px;
    }
    
    .page-banner {
        padding: 120px 0 60px;
    }
    
    .page-banner h1 {
        font-size: 32px;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .stats-grid {
        grid-template-columns: 1fr 1fr;
        gap: 20px;
    }
    
    .stat-number {
        font-size: 36px;
    }
    
    .cta-content {
        flex-direction: column;
        text-align: center;
    }
    
    .cta-text h2 {
        font-size: 26px;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: 12px;
        text-align: center;
    }
    
    .product-detail-info,
    .product-detail-visual {
        padding: 36px 24px;
    }
    
    .product-spec-grid {
        grid-template-columns: 1fr;
    }
    
    .effect-list {
        grid-template-columns: 1fr;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .contact-form {
        padding: 32px 24px;
    }
    
    .timeline::before {
        left: 20px;
    }
    
    .timeline-item {
        width: 100%;
        left: 0 !important;
        padding: 0 0 0 56px;
    }
    
    .timeline-item .timeline-dot {
        left: 12px !important;
        right: auto !important;
    }
    
    .process-grid {
        grid-template-columns: 1fr;
    }
}