/* ================================================================
   牙高医生 Dr.Gao 官网样式表
   100% 对齐 Next.js drgao-website 设计规范
   ================================================================ */

/* ================================================================
   1. CSS 变量 (Design Tokens) - 完全匹配 Next.js globals.css
   ================================================================ */
:root {
  /* Primary Colors */
  --color-primary-50: #f0fdfa;
  --color-primary-100: #ccfbf1;
  --color-primary-200: #99f6e4;
  --color-primary-300: #5eead4;
  --color-primary-400: #2dd4bf;
  --color-primary-500: #14b8a6;
  --color-primary-600: #0d9488;
  --color-primary-700: #0f766e;
  --color-primary-800: #115e59;
  --color-primary-900: #134e4a;

  /* Gray Scale */
  --color-gray-50: #f9fafb;
  --color-gray-100: #f3f4f6;
  --color-gray-200: #e5e7eb;
  --color-gray-300: #d1d5db;
  --color-gray-400: #9ca3af;
  --color-gray-500: #6b7280;
  --color-gray-600: #4b5563;
  --color-gray-700: #374151;
  --color-gray-800: #1f2937;
  --color-gray-900: #111827;

  /* Shadows */
  --shadow-card: 0 2px 12px rgba(14,148,136,0.06);
  --shadow-card-hover: 0 6px 20px rgba(14,148,136,0.10);
  --shadow-primary: 0 4px 12px rgba(20,184,166,0.20);

  /* Semantic */
  --color-white: #ffffff;
  --color-success: #10b981;
  --color-warning: #f59e0b;
  --color-error: #ef4444;
  --color-coral: #f97316;

  /* Typography */
  --font-family: "Inter", "Noto Sans SC", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;

  /* Layout */
  --max-width: 1280px;
}

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-family);
    font-size: 1rem;
    line-height: 1.6;
    color: var(--color-gray-900);
    background-color: var(--color-gray-50);
    min-height: 100vh;
}

a {
    color: inherit;
    text-decoration: none;
}

ul, ol {
    list-style: none;
}

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

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

input, textarea {
    font-family: inherit;
    font-size: 1rem;
}

/* ================================================================
   3. Layout Utilities
   ================================================================ */
.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 24px;
}

.main {
    min-height: calc(100vh - 64px);
}

.section {
    padding: 64px 0;
}

/* ================================================================
   4. Header - 完全匹配 Next.js 设计
   ================================================================ */
.site-header {
    position: sticky;
    top: 0;
    z-index: 50;
    background: var(--color-white);
    border-bottom: 1px solid var(--color-gray-200);
}

.site-header nav {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 24px;
}

.site-header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
}

.site-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
}

.site-logo-icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, #2dd4bf, #0d9488);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 2px 8px rgba(14,148,136,0.3);
}

.site-logo-icon span {
    color: white;
    font-weight: bold;
    font-size: 18px;
}

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

.site-logo-name {
    font-size: 18px;
    font-weight: bold;
    color: var(--color-gray-900);
}

.site-logo-tagline {
    font-size: 12px;
    color: var(--color-primary-500);
    margin-top: -2px;
}

/* Desktop Nav */
.desktop-nav {
    display: flex;
    align-items: center;
    gap: 4px;
}

.nav-link {
    padding: 8px 16px;
    font-size: 14px;
    font-weight: 500;
    color: var(--color-gray-600);
    border-radius: 6px;
    transition: all 0.15s;
    text-decoration: none;
}

.nav-link:hover {
    color: var(--color-primary-500);
    background: var(--color-primary-50);
}

.nav-link.active {
    color: var(--color-primary-600);
    background: var(--color-primary-50);
}

/* Mobile Menu Button */
.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    padding: 8px;
    cursor: pointer;
}

.mobile-menu-btn svg {
    width: 24px;
    height: 24px;
    color: var(--color-gray-600);
}

/* Mobile Menu */
.mobile-menu {
    display: none;
    flex-direction: column;
    gap: 4px;
    padding: 16px 24px;
    background: white;
    border-bottom: 1px solid var(--color-gray-200);
}

.mobile-menu.open {
    display: flex;
}

.mobile-nav-link {
    display: block;
    padding: 12px 16px;
    font-size: 16px;
    font-weight: 500;
    color: var(--color-gray-600);
    border-radius: 8px;
    transition: all 0.15s;
}

.mobile-nav-link:hover,
.mobile-nav-link.active {
    color: var(--color-primary-600);
    background: var(--color-primary-50);
}

@media (max-width: 1024px) {
    .desktop-nav { display: none !important; }
    .mobile-menu-btn { display: block !important; }
}

/* ================================================================
   5. Footer - 完全匹配 Next.js 设计
   ================================================================ */
.site-footer {
    background: var(--color-gray-900);
    color: white;
}

.site-footer-inner {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 64px 24px;
}

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

.footer-col {}

.footer-col-brand {}

.footer-brand-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 24px;
}

.footer-brand-icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, #2dd4bf, #0d9488);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.footer-brand-icon span {
    font-size: 20px;
}

.footer-brand-name {
    font-size: 20px;
    font-weight: bold;
    color: white;
}

.footer-brand-desc {
    color: #9ca3af;
    font-size: 14px;
    line-height: 1.7;
}

.footer-col h4 {
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: #9ca3af;
    margin-bottom: 24px;
}

.footer-col ul {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-col a {
    color: #d1d5db;
    text-decoration: none;
    font-size: 14px;
    transition: color 0.15s;
}

.footer-col a:hover {
    color: var(--color-primary-400);
}

.footer-bottom {
    border-top: 1px solid #1f2937;
    margin-top: 48px;
    padding-top: 32px;
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
}

.footer-bottom p {
    color: #6b7280;
    font-size: 14px;
    margin: 0;
}

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

@media (min-width: 1024px) {
    .footer-grid { grid-template-columns: 2fr 1fr 1fr 1fr; }
    .footer-col-brand { grid-column: 1; }
}

/* ================================================================
   6. Buttons - 完全匹配 Next.js 设计
   ================================================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-weight: 600;
    border-radius: 10px;
    transition: all 0.15s ease-out;
    text-decoration: none;
    white-space: nowrap;
    cursor: pointer;
    border: none;
}

.btn:active {
    transform: scale(0.97);
}

/* btn-white: 深色背景，白色文字按钮 */
.btn-white {
    background: white;
    color: #111827;
    padding: 0.875rem 2rem;
    font-size: 1rem;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.btn-white:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
}

/* btn-outline-white: 深色背景，白色边框按钮 */
.btn-outline-white {
    background: transparent;
    color: white;
    padding: 0.875rem 2rem;
    border: 2px solid white;
    font-size: 1rem;
}

.btn-outline-white:hover {
    background: rgba(255,255,255,0.1);
}

/* btn-primary: 主按钮，teal色 */
.btn-primary {
    background: var(--color-primary-500);
    color: white;
    padding: 0.625rem 1.25rem;
    font-size: 1rem;
    box-shadow: var(--shadow-primary);
}

.btn-primary:hover {
    background: var(--color-primary-600);
    transform: translateY(-2px);
}

/* btn-secondary: 次要按钮，白底teal边框 */
.btn-secondary {
    background: transparent;
    color: var(--color-primary-500);
    padding: 0.625rem 1.25rem;
    border: 2px solid var(--color-primary-500);
    font-size: 1rem;
}

.btn-secondary:hover {
    background: var(--color-primary-50);
}

.btn-lg {
    padding: 0.875rem 2rem;
    font-size: 1rem;
}

.btn-block {
    width: 100%;
}

/* ================================================================
   7. Hero Section
   ================================================================ */
.hero-section {
    background: linear-gradient(135deg, #0d9488, #0f766e);
    background-image: url('/static/images/products-banner.jpg');
    background-size: cover;
    background-position: center;
    color: white;
    padding: 96px 0;
    position: relative;
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(13,73,72,0.85), rgba(15,118,110,0.75));
    z-index: 0;
}

.hero-inner {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 24px;
    position: relative;
    z-index: 2;
}

.hero-content {
    max-width: 768px;
}

.hero-title {
    font-size: 48px;
    font-weight: bold;
    margin-bottom: 24px;
    line-height: 1.2;
}

.hero-subtitle {
    font-size: 20px;
    color: #99f6e4;
    margin-bottom: 32px;
    line-height: 1.6;
}

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

@media (min-width: 768px) {
    .hero-title { font-size: 56px; }
}

/* ================================================================
   8. Stats Section
   ================================================================ */
/* ============================================================
   Banner Carousel
   ============================================================ */
.banner-carousel-section {
    position: relative;
    width: 100%;
    overflow: hidden;
}

.banner-carousel {
    position: relative;
    width: 100%;
    height: 420px;
}

.banner-slide {
    position: absolute;
    inset: 0;
    opacity: 0;
    transition: opacity 0.6s ease-in-out;
    pointer-events: none;
}

.banner-slide.active {
    opacity: 1;
    pointer-events: auto;
}

.banner-slide-inner {
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    display: flex;
    align-items: center;
}

.banner-overlay {
    width: 100%;
    height: 100%;
    background: linear-gradient(120deg, rgba(13,71,72,0.92) 0%, rgba(13,71,72,0.6) 50%, rgba(13,71,72,0.3) 100%);
    display: flex;
    align-items: center;
}

.banner-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 40px;
    width: 100%;
}

.banner-title {
    font-size: 42px;
    font-weight: 800;
    color: white;
    margin-bottom: 16px;
    line-height: 1.2;
    text-shadow: 0 2px 8px rgba(0,0,0,0.3);
}

.banner-subtitle {
    font-size: 18px;
    color: rgba(255,255,255,0.9);
    margin-bottom: 28px;
    max-width: 540px;
    line-height: 1.6;
}

.banner-btn {
    display: inline-block;
    background: #14b8a6;
    color: white;
    padding: 14px 32px;
    border-radius: 50px;
    font-weight: 600;
    font-size: 16px;
    text-decoration: none;
    transition: all 0.3s ease;
    box-shadow: 0 4px 12px rgba(20,184,166,0.4);
}

.banner-btn:hover {
    background: #0d9488;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(20,184,166,0.5);
}

.banner-controls {
    position: absolute;
    bottom: 24px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    align-items: center;
    gap: 16px;
    z-index: 10;
}

.banner-btn-prev,
.banner-btn-next {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(255,255,255,0.2);
    border: none;
    color: white;
    font-size: 22px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(8px);
    transition: background 0.2s;
}

.banner-btn-prev:hover,
.banner-btn-next:hover {
    background: rgba(255,255,255,0.35);
}

.banner-dots {
    position: absolute !important;
    bottom: 30px !important;
    left: 50% !important;
    transform: translateX(-50%) !important;
    display: flex !important;
    justify-content: center !important;
    align-items: center !important;
    gap: 12px;
    z-index: 100 !important;
    pointer-events: auto;
}

.banner-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: rgba(255,255,255,0.4);
    cursor: pointer;
    transition: all 0.3s;
}

.banner-dot.active {
    background: white;
    transform: scale(1.2);
}

.banner-cta {
    margin-top: 8px;
}

@media (max-width: 768px) {
    .banner-carousel { height: 320px; }
    .banner-title { font-size: 28px; }
    .banner-subtitle { font-size: 15px; }
    .banner-content { padding: 0 24px; }
}

/* ============================================================
   Stats Section
   ============================================================ */
.stats-section {
    background: white;
    padding: 64px 0;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
}

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

.stat-value {
    font-size: 48px;
    font-weight: bold;
    color: var(--color-primary-500);
    margin-bottom: 8px;
}

.stat-label {
    color: var(--color-gray-500);
    font-size: 16px;
}

@media (min-width: 768px) {
    .stats-grid { grid-template-columns: repeat(4, 1fr) !important; }
}

/* ================================================================
   9. Page Header
   ================================================================ */
.page-header {
    padding: 64px 0 48px;
    background: var(--color-gray-50);
    border-bottom: 1px solid var(--color-gray-200);
    text-align: center;
}

.page-title {
    font-size: 36px;
    font-weight: bold;
    color: var(--color-gray-900);
    margin-bottom: 12px;
}

.page-subtitle {
    font-size: 18px;
    color: var(--color-gray-500);
    max-width: 600px;
    margin: 0 auto;
}

@media (min-width: 768px) {
    .page-title { font-size: 48px; }
}

/* ================================================================
   10. Section Header
   ================================================================ */
.section-header {
    text-align: center;
    margin-bottom: 48px;
}

.section-title {
    font-size: 32px;
    font-weight: bold;
    color: var(--color-gray-900);
    margin-bottom: 12px;
}

.section-subtitle {
    font-size: 18px;
    color: var(--color-gray-500);
}

/* ================================================================
   11. Product Cards - 完全匹配 Next.js 设计
   ================================================================ */
.products-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 24px;
}

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

@media (min-width: 1024px) {
    .products-grid { grid-template-columns: repeat(3, 1fr); }
}

.product-card {
    display: block;
    background: white;
    border-radius: 16px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.06);
    overflow: hidden;
    transition: all 0.3s ease-out;
    text-decoration: none;
}

.product-card:hover {
    box-shadow: 0 8px 24px rgba(0,0,0,0.1);
    transform: translateY(-4px);
}

.product-card-image {
    aspect-ratio: 4/3;
    background: #ffffff !important;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* ================================================================
   详情页区块精致化重构 (对齐优化版)
   ================================================================ */
.detail-section-card {
    background: transparent;
    padding: 0;
    margin-bottom: 48px;
}

.detail-section-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: #111827;
    margin-bottom: 24px;
    padding-left: 14px; /* 统一的固定缩进 */
    position: relative;
    background: transparent;
    display: flex;
    align-items: center;
    width: 100%;
    box-sizing: border-box;
}

.detail-section-title::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 4px;
    height: 18px;
    background: #14b8a6;
    border-radius: 4px;
}

/* FAQ 列表 - 保持白色卡片感 */
.faq-list-official {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.faq-item-official {
    background: #ffffff;
    border: 1px solid #f1f5f9;
    border-radius: 12px;
    padding: 24px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.faq-item-official:hover {
    border-color: #14b8a6;
    box-shadow: 0 4px 12px rgba(20, 184, 166, 0.05);
}

/* 规格参数容器 - 采用浅色底，详细内容更有序 */
.spec-container-official {
    background: #f8fafc;
    border: 1px solid #f1f5f9;
    border-radius: 16px;
    padding: 32px;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 24px 48px;
}

.spec-item-official {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.spec-label-official {
    font-size: 12px;
    font-weight: 500;
    color: #94a3b8;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.spec-value-official {
    font-size: 14px;
    color: #334155;
    font-weight: 600;
}

.spec-full-width {
    grid-column: 1 / -1;
    border-top: 1px solid #e2e8f0;
    padding-top: 24px;
}

.spec-ingredients-text {
    font-size: 13px;
    color: #64748b;
    line-height: 1.8;
    background: #ffffff;
    padding: 16px;
    border-radius: 8px;
    border: 1px solid #f1f5f9;
}

/* 核心功效 - 精致垂直列表 */
.vertical-feature-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-bottom: 28px;
}

.vertical-feature-item {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    font-size: 14.5px;
    color: #4b5563;
    line-height: 1.5;
}

.feature-check-box {
    flex-shrink: 0;
    width: 18px;
    height: 18px;
    background: #f0fdfa;
    color: #14b8a6;
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 11px;
    font-weight: 900;
}

/* 使用方法 - 紧凑步进器 */
.premium-usage-list {
    background: #f8fafc;
    border-radius: 14px;
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.usage-step-item {
    display: flex;
    gap: 12px;
    align-items: flex-start;
}

.usage-step-num {
    flex-shrink: 0;
    width: 20px;
    height: 20px;
    background: #ffffff;
    border: 1.5px solid #14b8a6;
    color: #14b8a6;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 11px;
    font-weight: 800;
    margin-top: 2px;
}

.usage-step-text {
    font-size: 13.5px;
    color: #4b5563;
    line-height: 1.5;
    font-weight: 500;
}

.product-card-image-icon {
    font-size: 64px;
}

.product-card-body {
    padding: 20px;
}

.product-card-tags {
    display: flex;
    gap: 8px;
    margin-bottom: 12px;
}

.product-card-tag {
    padding: 4px 8px;
    background: var(--color-primary-50);
    color: var(--color-primary-500);
    font-size: 12px;
    font-weight: 500;
    border-radius: 9999px;
}

.product-card-name {
    font-size: 18px;
    font-weight: bold;
    color: var(--color-gray-900);
    margin-bottom: 8px;
}

.product-card-summary {
    font-size: 14px;
    color: var(--color-gray-500);
    margin-bottom: 16px;
    line-height: 1.5;
}

.product-card-price-row {
    display: flex;
    align-items: baseline;
    gap: 8px;
}

.product-card-price {
    font-size: 24px;
    font-weight: bold;
    color: var(--color-primary-500);
}

.product-card-price-original {
    font-size: 14px;
    color: var(--color-gray-400);
    text-decoration: line-through;
}

/* ================================================================
   12. Trust / Brand Cards
   ================================================================ */
.trust-grid {
    display: grid;
    grid-template-columns: repeat(1, 1fr);
    gap: 24px;
}

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

@media (min-width: 1024px) {
    .trust-grid { grid-template-columns: repeat(2, 320px); justify-content: center; }
}

.trust-card {
    background: white;
    border-radius: 16px;
    padding: 32px;
    text-align: center;
    box-shadow: 0 2px 8px rgba(0,0,0,0.06);
    transition: all 0.3s ease-out;
}

.trust-card:hover {
    box-shadow: 0 8px 24px rgba(0,0,0,0.1);
    transform: translateY(-2px);
}

.trust-card-icon {
    font-size: 48px;
    margin-bottom: 16px;
}

.trust-card h3 {
    font-size: 18px;
    font-weight: bold;
    color: var(--color-gray-900);
    margin-bottom: 12px;
}

.trust-card p {
    font-size: 14px;
    color: var(--color-gray-500);
    line-height: 1.6;
}

/* ================================================================
   13. How It Works Steps
   ================================================================ */
.how-steps {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    margin-bottom: 32px;
    flex-wrap: wrap;
}

.how-step {
    flex: 1;
    min-width: 200px;
    max-width: 260px;
    background: white;
    border-radius: 16px;
    padding: 32px;
    text-align: center;
    box-shadow: 0 2px 8px rgba(0,0,0,0.06);
}

.how-step-num {
    font-size: 12px;
    font-weight: 700;
    color: var(--color-primary-400);
    letter-spacing: 0.1em;
    margin-bottom: 8px;
}

.how-step-icon {
    font-size: 48px;
    margin-bottom: 16px;
}

.how-step h3 {
    font-size: 18px;
    font-weight: bold;
    color: var(--color-gray-900);
    margin-bottom: 8px;
}

.how-step p {
    font-size: 14px;
    color: var(--color-gray-500);
    line-height: 1.5;
}

.how-arrow {
    font-size: 24px;
    color: var(--color-primary-300);
    flex-shrink: 0;
}

@media (max-width: 768px) {
    .how-arrow { display: none; }
    .how-step { max-width: 100%; }
}

/* ================================================================
   14. CTA Card
   ================================================================ */
.cta-card {
    background: linear-gradient(135deg, var(--color-primary-700), var(--color-primary-500));
    border-radius: 24px;
    padding: 48px 40px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 32px;
    flex-wrap: wrap;
}

.cta-content h2 {
    font-size: 28px;
    font-weight: bold;
    color: white;
    margin-bottom: 8px;
}

.cta-content p {
    font-size: 18px;
    color: rgba(255,255,255,0.8);
}

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

@media (max-width: 768px) {
    .cta-card { flex-direction: column; text-align: center; }
    .cta-actions { justify-content: center; }
}

/* ================================================================
   15. Product Detail Page
   ================================================================ */
.breadcrumb-section {
    padding: calc(64px + 24px) 0 16px;
    background: var(--color-gray-50);
    border-bottom: 1px solid var(--color-gray-200);
}

.breadcrumb {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    color: var(--color-gray-400);
    flex-wrap: wrap;
}

.breadcrumb a {
    color: var(--color-gray-500);
    transition: color 0.15s;
}

.breadcrumb a:hover {
    color: var(--color-primary-500);
}

.breadcrumb .sep {
    color: var(--color-gray-300);
}

.breadcrumb .current {
    color: var(--color-gray-900);
}

.product-detail-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 48px;
    padding: 48px 0;
}

@media (min-width: 1024px) {
    .product-detail-grid { grid-template-columns: 1fr 1fr; }
}

.product-detail-visual {
    position: relative;
}

.product-detail-image {
    border-radius: 16px;
    aspect-ratio: 4/3;
    background: #ffffff !important;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.product-detail-image-icon {
    font-size: 80px;
}

.product-badge-detail {
    position: absolute;
    top: 16px;
    left: 16px;
    padding: 6px 12px;
    background: rgba(255,255,255,0.9);
    border-radius: 9999px;
    font-size: 14px;
    font-weight: 600;
    color: var(--color-gray-500);
}

.product-detail-info {
    display: flex;
    flex-direction: column;
}

.product-detail-category {
    font-size: 14px;
    font-weight: 600;
    color: var(--color-primary-500);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 8px;
}

.product-detail-name {
    font-size: 32px;
    font-weight: bold;
    color: var(--color-gray-900);
    line-height: 1.2;
    margin-bottom: 12px;
}

.product-detail-summary {
    font-size: 18px;
    color: var(--color-gray-500);
    margin-bottom: 24px;
    line-height: 1.6;
}

.product-detail-target {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 24px;
}

.target-label {
    font-size: 14px;
    font-weight: 600;
    color: var(--color-gray-400);
    padding: 4px 12px;
    background: var(--color-gray-100);
    border-radius: 9999px;
}

.target-value {
    font-size: 16px;
    color: var(--color-gray-500);
}

.product-detail-price-box {
    display: flex;
    align-items: baseline;
    gap: 12px;
    margin-bottom: 32px;
    padding: 16px;
    background: var(--color-gray-50);
    border-radius: 12px;
}

.price-main {
    display: flex;
    align-items: baseline;
    gap: 2px;
}

.price-num {
    font-size: 48px;
    font-weight: bold;
    color: var(--color-coral);
}

.price-sign {
    font-size: 20px;
    font-weight: bold;
    color: var(--color-coral);
}

.price-original-detail {
    font-size: 18px;
    color: var(--color-gray-400);
    text-decoration: line-through;
}

.price-discount {
    font-size: 14px;
    font-weight: 600;
    color: white;
    background: var(--color-coral);
    padding: 2px 10px;
    border-radius: 9999px;
}

.product-detail-features h3,
.product-detail-usage h3 {
    font-size: 18px;
    font-weight: bold;
    color: var(--color-gray-900);
    margin-bottom: 16px;
}

.features-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-bottom: 32px;
}

.features-list li {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    font-size: 16px;
    color: var(--color-gray-500);
    line-height: 1.5;
}

.feature-check {
    color: var(--color-success);
    font-weight: 700;
    flex-shrink: 0;
    margin-top: 2px;
}

.usage-steps {
    counter-reset: usage;
    margin-bottom: 32px;
}

.usage-steps li {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    font-size: 16px;
    color: var(--color-gray-500);
    margin-bottom: 12px;
    line-height: 1.5;
}

.usage-steps .step-num {
    flex-shrink: 0;
    width: 24px;
    height: 24px;
    background: var(--color-primary-100);
    color: var(--color-primary-600);
    font-size: 14px;
    font-weight: 700;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.product-detail-actions {
    display: flex;
    gap: 16px;
    margin-bottom: 24px;
    flex-wrap: wrap;
}

.product-disclaimer {
    font-size: 14px;
    color: var(--color-gray-400);
    display: flex;
    align-items: flex-start;
    gap: 8px;
    padding: 12px;
    background: var(--color-gray-100);
    border-radius: 8px;
}

/* Specs Table */
.product-specs-section {
    padding: 48px 0;
    border-top: 1px solid var(--color-gray-200);
}

.specs-title {
    font-size: 24px;
    font-weight: bold;
    color: var(--color-gray-900);
    margin-bottom: 24px;
}

.specs-table {
    background: var(--color-gray-50);
    border-radius: 12px;
    overflow: hidden;
    max-width: 600px;
}

.spec-row {
    display: flex;
    padding: 16px 20px;
    border-bottom: 1px solid var(--color-gray-200);
}

.spec-row:last-child {
    border-bottom: none;
}

.spec-key {
    width: 140px;
    font-size: 14px;
    font-weight: 600;
    color: var(--color-gray-400);
    flex-shrink: 0;
}

.spec-value {
    font-size: 16px;
    color: var(--color-gray-900);
}

/* Comparison Table */
.comparison-section {
    padding: 48px 0;
    border-top: 1px solid var(--color-gray-200);
}

.comparison-title {
    font-size: 24px;
    font-weight: bold;
    color: var(--color-gray-900);
    margin-bottom: 24px;
}

.comparison-table {
    max-width: 800px;
    border: 1px solid var(--color-gray-200);
    border-radius: 12px;
    overflow: hidden;
}

.comparison-header,
.comparison-row {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
}

.comparison-header {
    background: var(--color-gray-100);
}

.comparison-header .comp-col {
    font-size: 14px;
    font-weight: 700;
    color: var(--color-gray-900);
    padding: 16px;
}

.comparison-row {
    border-top: 1px solid var(--color-gray-200);
}

.comparison-row:nth-child(even) {
    background: var(--color-gray-50);
}

.comp-col {
    padding: 16px;
    font-size: 14px;
    color: var(--color-gray-500);
}

.comp-col.highlight {
    background: var(--color-primary-50);
    color: var(--color-primary-700);
    font-weight: 600;
}

/* FAQ Section */
.faq-section {
    padding: 48px 0;
    border-top: 1px solid var(--color-gray-200);
}

.faq-title {
    font-size: 24px;
    font-weight: bold;
    color: var(--color-gray-900);
    margin-bottom: 24px;
}

.faq-list {
    max-width: 800px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.faq-item {
    background: var(--color-white);
    border: 1px solid var(--color-gray-200);
    border-radius: 12px;
    overflow: hidden;
}

.faq-question {
    padding: 18px 24px;
    font-size: 16px;
    font-weight: 600;
    color: var(--color-gray-800);
    cursor: pointer;
    list-style: none;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--color-gray-50);
}

.faq-question::-webkit-details-marker { display: none; }
.faq-question::after {
    content: '+';
    font-size: 20px;
    color: var(--color-primary-500);
    font-weight: 400;
    transition: transform 0.2s;
}
details[open] .faq-question::after {
    content: '−';
    transform: rotate(0);
}

.faq-answer {
    padding: 18px 24px;
    font-size: 15px;
    color: var(--color-gray-600);
    line-height: 1.7;
    background: var(--color-white);
    border-top: 1px solid var(--color-gray-100);
}

.faq-answer p {
    margin-bottom: 12px;
}
.faq-answer p:last-child {
    margin-bottom: 0;
}

/* Related Products */
.related-section {
    padding: 48px 0;
    border-top: 1px solid var(--color-gray-200);
}

.related-title {
    font-size: 24px;
    font-weight: bold;
    color: var(--color-gray-900);
    margin-bottom: 24px;
}

.related-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 24px;
}

@media (min-width: 768px) {
    .related-grid { grid-template-columns: repeat(3, 1fr); }
}

/* ================================================================
   16. Product Lines Section
   ================================================================ */
.product-lines-section {
    background: var(--color-gray-50);
}

.product-lines-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 24px;
}

@media (min-width: 768px) {
    .product-lines-grid { grid-template-columns: repeat(3, 1fr); }
}

.product-line-card {
    background: white;
    border-radius: 16px;
    padding: 32px;
    text-align: center;
    box-shadow: 0 2px 8px rgba(0,0,0,0.06);
    transition: all 0.3s ease-out;
    cursor: pointer;
    text-decoration: none;
    display: block;
}

.product-line-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(0,0,0,0.1);
}

.product-line-icon {
    font-size: 48px;
    margin-bottom: 16px;
}

.product-line-name {
    font-size: 20px;
    font-weight: bold;
    color: var(--color-gray-900);
    margin-bottom: 8px;
}

.product-line-desc {
    font-size: 14px;
    color: var(--color-gray-500);
    margin-bottom: 24px;
    line-height: 1.5;
}

.product-line-count {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-size: 14px;
    font-weight: 600;
    color: var(--color-primary-500);
}

.product-line-count .arrow {
    transition: transform 0.15s;
}

.product-line-card:hover .arrow {
    transform: translateX(4px);
}

/* ================================================================
   17. Solutions Page
   ================================================================ */
.solutions-section {
    background: var(--color-gray-50);
}

.solution-card {
    background: white;
    border-radius: 24px;
    margin-bottom: 32px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0,0,0,0.06);
}

.solution-header {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 32px;
    border-bottom: 1px solid var(--color-gray-200);
}

.solution-icon {
    font-size: 48px;
    flex-shrink: 0;
}

.solution-title {
    font-size: 24px;
    font-weight: bold;
    color: var(--color-gray-900);
    margin-bottom: 4px;
}

.solution-subtitle {
    font-size: 14px;
    color: var(--color-gray-500);
}

.solution-content {
    padding: 32px;
    display: grid;
    grid-template-columns: 1fr;
    gap: 32px;
}

@media (min-width: 1024px) {
    .solution-content { grid-template-columns: 1fr 2fr 1fr; }
}

.solution-problem h4,
.solution-approach h4,
.solution-products h4 {
    font-size: 16px;
    font-weight: bold;
    color: var(--color-gray-900);
    margin-bottom: 16px;
}

.solution-problem ul li {
    font-size: 14px;
    color: var(--color-gray-500);
    margin-bottom: 8px;
    padding-left: 16px;
    position: relative;
}

.solution-problem ul li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--color-primary-500);
    font-weight: 700;
}

.approach-steps {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.approach-step {
    display: flex;
    gap: 16px;
    align-items: flex-start;
}

.approach-step .step-num {
    flex-shrink: 0;
    width: 28px;
    height: 28px;
    background: var(--color-primary-500);
    color: white;
    font-size: 14px;
    font-weight: 700;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.approach-step h5 {
    font-size: 16px;
    font-weight: bold;
    color: var(--color-gray-900);
    margin-bottom: 4px;
}

.approach-step p {
    font-size: 14px;
    color: var(--color-gray-500);
    line-height: 1.5;
}

.solution-products-grid {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.solution-product-card {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px;
    background: var(--color-gray-50);
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.15s;
}

.solution-product-card:hover {
    background: var(--color-gray-100);
    transform: translateX(4px);
}

.sol-prod-image {
    width: 48px;
    height: 48px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.sol-prod-info {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.sol-prod-name {
    font-size: 14px;
    font-weight: 600;
    color: var(--color-gray-900);
}

.sol-prod-price {
    font-size: 12px;
    font-weight: bold;
    color: var(--color-coral);
}

.disclaimer-box {
    background: var(--color-gray-100);
    border-radius: 12px;
    padding: 24px;
    border-left: 3px solid var(--color-warning);
    margin-top: 32px;
}

.disclaimer-box h4 {
    font-size: 16px;
    font-weight: bold;
    color: var(--color-gray-900);
    margin-bottom: 8px;
}

.disclaimer-box p {
    font-size: 14px;
    color: var(--color-gray-500);
    line-height: 1.6;
}

/* ================================================================
   18. Purchase Page
   ================================================================ */
.stores-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 24px;
    max-width: 800px;
    margin: 0 auto;
}

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

.store-card {
    background: white;
    border-radius: 16px;
    padding: 40px;
    text-align: center;
    box-shadow: 0 2px 8px rgba(0,0,0,0.06);
    border: 2px solid transparent;
    transition: all 0.3s ease-out;
    cursor: pointer;
    display: block;
}

.store-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(0,0,0,0.1);
}

.store-taobao:hover {
    border-color: #FF6A00;
}

.store-jd:hover {
    border-color: #E2231A;
}

.store-icon {
    margin-bottom: 16px;
}

.store-card h3 {
    font-size: 20px;
    font-weight: bold;
    color: var(--color-gray-900);
    margin-bottom: 8px;
}

.store-card p {
    font-size: 14px;
    color: var(--color-gray-500);
    margin-bottom: 24px;
}

.store-btn {
    display: inline-block;
    font-size: 16px;
    font-weight: 600;
    color: var(--color-primary-500);
}

/* Contact Section */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 48px;
    padding: 48px 0;
}

@media (min-width: 1024px) {
    .contact-grid { grid-template-columns: 1fr 1fr; align-items: start; }
}

.contact-info h2 {
    font-size: 32px;
    font-weight: bold;
    color: var(--color-gray-900);
    margin-bottom: 16px;
}

.contact-info > p {
    font-size: 18px;
    color: var(--color-gray-500);
    margin-bottom: 32px;
    line-height: 1.7;
}

.contact-methods {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.contact-method {
    display: flex;
    align-items: center;
    gap: 16px;
}

.method-icon {
    font-size: 24px;
}

.method-label {
    font-size: 14px;
    font-weight: 600;
    color: var(--color-gray-400);
    margin-bottom: 2px;
}

.method-value {
    font-size: 18px;
    color: var(--color-gray-900);
}

.contact-form-wrapper {
    background: var(--color-gray-50);
    border-radius: 16px;
    padding: 32px;
}

.contact-form-wrapper h3 {
    font-size: 20px;
    font-weight: bold;
    color: var(--color-gray-900);
    margin-bottom: 24px;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-group label {
    font-size: 14px;
    font-weight: 600;
    color: var(--color-gray-500);
}

.required {
    color: var(--color-error);
}

.form-group input,
.form-group textarea {
    padding: 14px 16px;
    border: 1.5px solid var(--color-gray-200);
    border-radius: 10px;
    background: white;
    color: var(--color-gray-900);
    transition: border-color 0.15s;
    -webkit-appearance: none;
    font-size: 16px;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-primary-400);
}

.form-group textarea {
    resize: vertical;
    min-height: 100px;
}

.form-note {
    margin-top: 16px;
    font-size: 14px;
    color: var(--color-gray-400);
    display: flex;
    align-items: center;
    gap: 8px;
}

.icp-section {
    padding: 48px 0;
    text-align: center;
    border-top: 1px solid var(--color-gray-200);
}

.icp-section p {
    font-size: 14px;
    color: var(--color-gray-400);
    margin-bottom: 4px;
}

/* ================================================================
   19. About Page
   ================================================================ */
.brand-story-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 48px;
    align-items: center;
}

@media (min-width: 1024px) {
    .brand-story-grid { grid-template-columns: 1fr 1fr; }
}

.brand-story-text h2 {
    font-size: 32px;
    font-weight: bold;
    color: var(--color-gray-900);
    margin-bottom: 24px;
}

.brand-story-text p {
    font-size: 16px;
    color: var(--color-gray-500);
    line-height: 1.8;
    margin-bottom: 16px;
}

.brand-visual-card {
    background: white;
    border-radius: 16px;
    padding: 40px;
    text-align: center;
    box-shadow: 0 2px 8px rgba(0,0,0,0.06);
}

.brand-visual-icon {
    font-size: 80px;
    margin-bottom: 16px;
}

.brand-visual-name {
    font-size: 20px;
    font-weight: bold;
    color: var(--color-gray-900);
    margin-bottom: 4px;
}

.brand-visual-title {
    font-size: 14px;
    color: var(--color-gray-400);
}

/* Research Section */
.research-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 24px;
}

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

.research-card {
    background: white;
    border-radius: 16px;
    padding: 32px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.06);
}

.research-card.patent {
    grid-column: 1 / -1;
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 24px;
    align-items: start;
}

@media (max-width: 768px) {
    .research-card.patent { grid-template-columns: 1fr; }
}

.research-card-icon {
    margin-bottom: 16px;
}

.research-card h3 {
    font-size: 18px;
    font-weight: bold;
    color: var(--color-gray-900);
    margin-bottom: 8px;
}

.patent-number {
    font-size: 14px;
    font-weight: bold;
    color: var(--color-primary-500);
    margin-bottom: 12px;
}

.patent-desc {
    font-size: 14px;
    color: var(--color-gray-500);
    line-height: 1.6;
}

/* Clinical Section */
.clinical-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 24px;
}

@media (min-width: 1024px) {
    .clinical-grid { grid-template-columns: 2fr 1fr; }
}

.clinical-card {
    background: white;
    border-radius: 16px;
    padding: 32px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.06);
    position: relative;
    overflow: hidden;
}

.clinical-badge {
    display: inline-block;
    padding: 4px 12px;
    background: var(--color-primary-100);
    color: var(--color-primary-700);
    font-size: 12px;
    font-weight: 700;
    border-radius: 9999px;
    margin-bottom: 16px;
}

.clinical-card h3 {
    font-size: 20px;
    font-weight: bold;
    color: var(--color-gray-900);
    margin-bottom: 12px;
}

.clinical-card p {
    font-size: 14px;
    color: var(--color-gray-500);
    line-height: 1.6;
}

.clinical-stat {
    margin-top: 24px;
    padding-top: 24px;
    border-top: 1px solid var(--color-gray-200);
    display: flex;
    align-items: baseline;
    gap: 8px;
}

.stat-num {
    font-size: 48px;
    font-weight: bold;
    color: var(--color-primary-500);
}

.stat-unit {
    font-size: 20px;
    font-weight: bold;
    color: var(--color-primary-500);
}

.stat-desc {
    font-size: 16px;
    color: var(--color-gray-500);
    margin-left: 8px;
}

.nature-doi {
    font-size: 12px;
    color: var(--color-gray-400);
    margin-top: 12px;
    font-family: monospace;
}

.clinical-card.nature .clinical-badge {
    background: #ffe4e6;
    color: #e11d48;
}

/* Awards */
.awards-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 24px;
}

@media (min-width: 768px) {
    .awards-grid { grid-template-columns: repeat(3, 1fr); }
}

.award-card {
    background: var(--color-gray-50);
    border-radius: 16px;
    padding: 32px;
    text-align: center;
    box-shadow: 0 1px 3px rgba(0,0,0,0.04);
}

.award-icon {
    margin-bottom: 16px;
}

.award-card h3 {
    font-size: 18px;
    font-weight: bold;
    color: var(--color-gray-900);
    margin-bottom: 8px;
}

.award-card p {
    font-size: 14px;
    color: var(--color-gray-500);
    line-height: 1.5;
}

.award-year {
    display: inline-block;
    margin-top: 12px;
    font-size: 14px;
    font-weight: 600;
    color: var(--color-primary-500);
}

.award-patent {
    display: inline-block;
    margin-top: 12px;
    font-size: 12px;
    font-weight: bold;
    color: var(--color-primary-500);
    font-family: monospace;
}

/* ================================================================
   20. Categories Nav
   ================================================================ */
.categories-nav-section {
    padding: 24px 0;
    background: var(--color-gray-50);
    border-bottom: 1px solid var(--color-gray-200);
    position: sticky;
    top: 64px;
    z-index: 10;
}

.categories-nav {
    display: flex;
    gap: 8px;
    overflow-x: auto;
    scrollbar-width: none;
    padding-bottom: 4px;
}

.categories-nav::-webkit-scrollbar {
    display: none;
}

.category-nav-btn {
    flex-shrink: 0;
    padding: 8px 20px;
    font-size: 14px;
    font-weight: 500;
    color: var(--color-gray-500);
    background: white;
    border: 1.5px solid var(--color-gray-200);
    border-radius: 9999px;
    cursor: pointer;
    transition: all 0.15s;
    white-space: nowrap;
}

.category-nav-btn:hover {
    border-color: var(--color-primary-500);
    color: var(--color-primary-500);
}

.category-nav-btn.active {
    background: var(--color-primary-500);
    color: white;
    border-color: var(--color-primary-500);
}

/* ================================================================
   21. Category Section
   ================================================================ */
.category-section {
    margin-bottom: 48px;
}

.category-section-header {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 32px;
    padding-bottom: 16px;
    border-bottom: 2px solid var(--color-gray-200);
}

.category-section-icon {
    font-size: 32px;
}

.category-section-title {
    font-size: 24px;
    font-weight: bold;
    color: var(--color-gray-900);
}

.category-section-desc {
    font-size: 14px;
    color: var(--color-gray-500);
}

.section-cta {
    text-align: center;
    margin-top: 40px;
}

/* ================================================================
   22. 404 Error Page
   ================================================================ */
.error-page {
    min-height: calc(100vh - 64px);
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 48px 24px;
}

.error-page h1 {
    font-size: 120px;
    font-weight: bold;
    color: var(--color-primary-200);
    line-height: 1;
    margin-bottom: 24px;
}

.error-page h2 {
    font-size: 32px;
    font-weight: bold;
    color: var(--color-gray-900);
    margin-bottom: 12px;
}

.error-page p {
    font-size: 18px;
    color: var(--color-gray-500);
    margin-bottom: 32px;
}

/* ================================================================
   23. Featured Products Section
   ================================================================ */
.featured-products-section {
    background: var(--color-gray-50);
}

.featured-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 24px;
}

@media (min-width: 768px) {
    .featured-grid { grid-template-columns: repeat(3, 1fr); }
}

/* ================================================================
   24. Animations
   ================================================================ */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.product-card,
.trust-card,
.solution-card,
.product-line-card {
    animation: fadeInUp 0.3s ease-out both;
}

/* Stagger product cards */
.products-grid .product-card:nth-child(1) { animation-delay: 0ms; }
.products-grid .product-card:nth-child(2) { animation-delay: 50ms; }
.products-grid .product-card:nth-child(3) { animation-delay: 100ms; }
.products-grid .product-card:nth-child(4) { animation-delay: 150ms; }
.products-grid .product-card:nth-child(5) { animation-delay: 200ms; }
.products-grid .product-card:nth-child(6) { animation-delay: 250ms; }

/* ================================================================
   GPC Compliance Section
   ================================================================ */
.gpc-section {
  background: var(--color-gray-50);
  border-radius: 16px;
  padding: 32px;
  margin-top: 32px;
}

.gpc-section-title {
  font-size: 20px;
  font-weight: 700;
  color: var(--color-gray-900);
  margin-bottom: 24px;
}

.gpc-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 20px;
}

.gpc-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.gpc-item label {
  font-size: 12px;
  font-weight: 600;
  color: var(--color-gray-400);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.gpc-item span {
  font-size: 14px;
  color: var(--color-gray-900);
  line-height: 1.5;
}

.gpc-full {
  grid-column: 1 / -1;
}

.gpc-warnings {
  margin-top: 24px;
  padding: 16px;
  background: #FEF3C7;
  border-radius: 8px;
  font-size: 14px;
  color: #92400E;
  line-height: 1.6;
}

.gpc-warnings strong {
  font-weight: 600;
}

/* 极速全局覆盖 - 强制背景统一 */
.product-card-image, 
.product-detail-image, 
.product-image-wrapper,
.product-visual-container {
    background-color: #ffffff !important;
    background-image: none !important;
}

.product-card {
    background-color: #ffffff !important;
}