/* =========================================================
   Pep.Buy.com - Modern Styling
   ========================================================= */

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html, body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
                 "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    font-size: 16px;
    color: #1e293b;
    background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
    line-height: 1.6;
    min-height: 100vh;
}

:root {
    --primary: #FF6B35;
    --primary-dark: #EA580C;
    --primary-light: #FFE5D9;
    
    --rose-500: #ec4899;
    --rose-400: #f472b6;
    --amber-500: #f59e0b;
    --amber-400: #fbbf24;
    --slate-900: #0f172a;
    --slate-800: #1e293b;
    --slate-700: #334155;
    --slate-600: #475569;
    --slate-500: #64748b;
    --slate-400: #94a3b8;
    --slate-300: #cbd5e1;
    --slate-200: #e2e8f0;
    --slate-100: #f1f5f9;
    
    --danger: #dc2626;
    --success: #07c160;
    --warning: #f59e0b;
    
    --bg-gray: #f8fafc;
    --bg-light: #ffffff;
    --border: rgba(226, 232, 240, 0.8);
    
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
}

/* 通用容器 */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 导航栏 */
.navbar {
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: var(--shadow-md);
    position: sticky;
    top: 0;
    z-index: 100;
    border-bottom: 1px solid rgba(226, 232, 240, 0.5);
}

.navbar-inner {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.navbar-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    transition: transform 0.3s;
}

.navbar-brand:hover {
    transform: scale(1.02);
}

.navbar-logo {
    width: 44px;
    height: 44px;
    border-radius: 14px;
    box-shadow: var(--shadow-sm);
}

.navbar-name {
    font-size: 1.35rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary), var(--amber-500));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.navbar-links {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav-link {
    text-decoration: none;
    color: var(--slate-600);
    font-size: 0.95rem;
    font-weight: 500;
    transition: all 0.3s;
    padding: 8px 16px;
    border-radius: 12px;
}

.nav-link:hover {
    color: var(--primary);
    background: rgba(255, 107, 53, 0.08);
}

.nav-cart {
    position: relative;
    padding: 10px;
    border-radius: 14px;
    transition: all 0.3s;
}

.nav-cart:hover {
    background: var(--slate-100);
}

.cart-badge {
    position: absolute;
    top: 4px;
    right: 4px;
    min-width: 20px;
    height: 20px;
    padding: 0 6px;
    background: linear-gradient(135deg, var(--rose-500), var(--danger));
    color: white;
    font-size: 0.7rem;
    font-weight: 600;
    border-radius: 9px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.nav-lang {
    padding: 6px 14px;
    background: rgba(255,107,53,0.1);
    color: var(--primary);
    border-radius: 20px;
    font-size: 0.85rem;
}

/* Hero 区域 */
.hero {
    background: linear-gradient(135deg, #0f172a 0%, #1e1b4b 30%, #312e81 60%, #1e3a5f 100%);
    padding: 120px 20px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 20% 10%, rgba(255, 107, 53, 0.25) 0%, transparent 40%),
                radial-gradient(circle at 80% 90%, rgba(168, 85, 247, 0.2) 0%, transparent 40%),
                radial-gradient(circle at 50% 50%, rgba(236, 72, 153, 0.15) 0%, transparent 60%);
}

.hero::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 120px;
    background: linear-gradient(to top, #f8fafc, transparent);
}

.hero-content {
    position: relative;
    z-index: 1;
}

.hero-icon {
    width: 100px;
    height: 100px;
    margin: 0 auto 36px;
    background: linear-gradient(135deg, rgba(255, 107, 53, 0.3), rgba(255, 107, 53, 0.1));
    border-radius: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid rgba(255, 255, 255, 0.15);
    box-shadow: 0 12px 40px rgba(255, 107, 53, 0.25);
    transition: transform 0.4s, box-shadow 0.4s;
}

.hero-icon:hover {
    transform: scale(1.05);
    box-shadow: 0 16px 48px rgba(255, 107, 53, 0.35);
}

.hero-icon svg {
    width: 48px;
    height: 48px;
    color: #ffffff;
    filter: drop-shadow(0 2px 8px rgba(0, 0, 0, 0.3));
}

.hero-title {
    font-size: 3.25rem;
    font-weight: 800;
    color: #ffffff;
    margin-bottom: 24px;
    line-height: 1.1;
    letter-spacing: -1px;
    text-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.hero-title span {
    background: linear-gradient(135deg, #FF6B35, #fbbf24);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: none;
}

.hero-desc {
    font-size: 1.25rem;
    color: rgba(255, 255, 255, 0.85);
    margin-bottom: 56px;
    max-width: 550px;
    margin-left: auto;
    margin-right: auto;
    font-weight: 400;
    letter-spacing: 0.3px;
}

.search-box {
    max-width: 680px;
    margin: 0 auto;
}

.search-form {
    display: flex;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 24px;
    padding: 6px;
    box-shadow: 0 12px 48px rgba(0, 0, 0, 0.25);
    transition: box-shadow 0.4s;
}

.search-form:focus-within {
    box-shadow: 0 16px 56px rgba(255, 107, 53, 0.2);
}

.search-input {
    flex: 1;
    background: rgba(255, 255, 255, 0.06);
    border: none;
    outline: none;
    padding: 18px 24px;
    font-size: 1rem;
    color: #ffffff;
    border-radius: 20px;
    transition: all 0.3s;
}

.search-input:focus {
    background: rgba(255, 255, 255, 0.12);
    box-shadow: 0 0 0 2px rgba(255, 107, 53, 0.3);
}

.search-input::placeholder {
    color: rgba(255, 255, 255, 0.5);
}

.search-btn {
    background: linear-gradient(135deg, #FF6B35, #ea580c);
    color: #ffffff;
    border: none;
    border-radius: 20px;
    padding: 18px 40px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 6px 20px rgba(255, 107, 53, 0.45);
}

.search-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 32px rgba(255, 107, 53, 0.5);
    background: linear-gradient(135deg, #fbbf24, #FF6B35);
}

.search-btn:active {
    transform: translateY(-1px);
    box-shadow: 0 8px 24px rgba(255, 107, 53, 0.45);
}

.search-hint {
    margin-top: 24px;
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.65);
}

.search-hint span {
    display: inline-flex;
    gap: 8px;
    align-items: center;
}

.search-hint span::before {
    content: '💡';
}

/* 特色区域 */
.features {
    padding: 100px 20px;
    background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
}

.features-grid {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 28px;
}

.feature-card {
    text-align: center;
    padding: 48px 32px;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-radius: 28px;
    border: 1px solid rgba(226, 232, 240, 0.6);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #FF6B35, #fbbf24);
    transform: scaleX(0);
    transition: transform 0.4s;
}

.feature-card::after {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle, rgba(255, 107, 53, 0.06) 0%, transparent 70%);
    opacity: 0;
    transition: opacity 0.4s;
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.08);
    border-color: rgba(255, 107, 53, 0.2);
}

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

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

.feature-icon {
    width: 88px;
    height: 88px;
    margin: 0 auto 24px;
    background: linear-gradient(135deg, rgba(255, 107, 53, 0.12), rgba(255, 107, 53, 0.04));
    border-radius: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    z-index: 1;
}

.feature-card:hover .feature-icon {
    transform: scale(1.1);
}

.feature-title {
    font-size: 1.35rem;
    font-weight: 700;
    margin-bottom: 14px;
    color: var(--slate-800);
    position: relative;
    z-index: 1;
}

.feature-desc {
    font-size: 1rem;
    color: var(--slate-600);
    line-height: 1.7;
    position: relative;
    z-index: 1;
}

/* 商品区域 */
.products {
    padding: 100px 20px;
    background: #ffffff;
}

.section-title {
    font-size: 2.25rem;
    font-weight: 800;
    text-align: center;
    margin-bottom: 56px;
    color: var(--slate-800);
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -16px;
    left: 50%;
    transform: translateX(-50%);
    width: 70px;
    height: 4px;
    background: linear-gradient(90deg, #FF6B35, #fbbf24);
    border-radius: 2px;
    box-shadow: 0 2px 8px rgba(255, 107, 53, 0.3);
}

.section-title::before {
    content: '';
    position: absolute;
    bottom: -16px;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 4px;
    background: linear-gradient(90deg, transparent, rgba(255, 107, 53, 0.2), transparent);
    border-radius: 2px;
}

.products-grid {
    max-width: 1300px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(290px, 1fr));
    gap: 32px;
}

.product-card {
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-radius: 24px;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid rgba(226, 232, 240, 0.6);
    position: relative;
}

.product-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-xl);
    border-color: rgba(255, 107, 53, 0.2);
}

.product-image-wrapper {
    position: relative;
    width: 100%;
    padding-top: 100%;
    background: linear-gradient(135deg, #f8fafc, #f1f5f9);
    overflow: hidden;
    border-radius: 24px 24px 0 0;
}

.product-image {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.product-card:hover .product-image {
    transform: scale(1.1);
}

.product-badge {
    position: absolute;
    top: 14px;
    left: 14px;
    padding: 7px 16px;
    background: linear-gradient(135deg, #FF6B35, #ea580c);
    color: #ffffff;
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: 16px;
    box-shadow: 0 4px 12px rgba(255, 107, 53, 0.4);
    z-index: 2;
}

.product-info {
    padding: 24px;
}

.product-title {
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--slate-800);
    margin-bottom: 16px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    line-height: 1.65;
    letter-spacing: 0.4px;
}

.product-price-row {
    display: flex;
    align-items: baseline;
    gap: 14px;
}

.product-price {
    font-size: 1.85rem;
    font-weight: 800;
    color: var(--danger);
    letter-spacing: -2px;
}

.product-original-price {
    font-size: 1rem;
    color: var(--slate-400);
    text-decoration: line-through;
}

.product-shipping {
    font-size: 0.9rem;
    color: var(--slate-500);
    margin-top: 12px;
    padding-top: 12px;
    border-top: 1px solid #f3f4f6;
}

/* 商品详情页 */
.detail-page {
    padding: 60px 20px;
    background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
    min-height: calc(100vh - 140px);
}

.detail-card {
    max-width: 1100px;
    margin: 0 auto;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-radius: 28px;
    overflow: hidden;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.08);
    border: 1px solid rgba(226, 232, 240, 0.6);
}

.detail-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
}

.detail-image-box {
    padding: 40px;
    background: linear-gradient(135deg, #fafafa, #f1f5f9);
}

.detail-image-wrapper {
    background: white;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
    aspect-ratio: 1;
    transition: transform 0.3s ease;
}

.detail-image-wrapper:hover {
    transform: scale(1.02);
}

.detail-image-wrapper img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.detail-info {
    padding: 40px 35px;
}

.detail-source {
    display: inline-block;
    padding: 8px 18px;
    background: linear-gradient(135deg, rgba(255, 107, 53, 0.1), rgba(255, 107, 53, 0.05));
    color: var(--primary);
    font-size: 0.85rem;
    font-weight: 700;
    border-radius: 12px;
    margin-bottom: 20px;
}

.detail-title {
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--slate-800);
    line-height: 1.5;
    margin-bottom: 24px;
}

.detail-price-box {
    background: linear-gradient(135deg, rgba(239, 68, 68, 0.06), rgba(251, 113, 133, 0.04));
    border-radius: 16px;
    padding: 24px;
    margin-bottom: 28px;
}

.detail-price {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--danger);
    letter-spacing: -1px;
}

.detail-original {
    font-size: 1rem;
    color: var(--slate-400);
    text-decoration: line-through;
    margin-left: 16px;
    font-weight: 500;
}

.detail-meta {
    display: flex;
    gap: 32px;
    margin-top: 16px;
    font-size: 0.9rem;
    color: var(--slate-600);
    font-weight: 500;
}

.detail-form {
    margin-top: 32px;
}

.form-group {
    margin-bottom: 22px;
}

.form-label {
    display: block;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--slate-700);
    margin-bottom: 12px;
}

.form-select {
    width: 100%;
    padding: 14px 16px;
    border: 2px solid rgba(226, 232, 240, 0.8);
    border-radius: 12px;
    font-size: 0.95rem;
    color: var(--slate-800);
    background: rgba(255, 255, 255, 0.8);
    outline: none;
    transition: all 0.3s;
    cursor: pointer;
}

.form-select:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(255, 107, 53, 0.1);
}

.qty-control {
    display: flex;
    align-items: center;
    gap: 0;
    background: rgba(226, 232, 240, 0.3);
    border-radius: 12px;
    overflow: hidden;
    border: 2px solid rgba(226, 232, 240, 0.8);
}

.qty-btn {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: white;
    border: none;
    cursor: pointer;
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--slate-700);
    transition: all 0.2s;
}

.qty-btn:hover {
    background: var(--slate-100);
    color: var(--primary);
}

.qty-input {
    width: 80px;
    text-align: center;
    font-size: 1rem;
    font-weight: 700;
    border: none;
    background: transparent;
    outline: none;
    color: var(--slate-800);
}

.add-cart-btn {
    width: 100%;
    background: linear-gradient(135deg, #FF6B35, #ea580c);
    color: white;
    border: none;
    border-radius: 16px;
    padding: 18px;
    font-size: 1.05rem;
    font-weight: 700;
    cursor: pointer;
    margin-top: 32px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    box-shadow: 0 6px 20px rgba(255, 107, 53, 0.4);
}

.add-cart-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(255, 107, 53, 0.5);
    background: linear-gradient(135deg, #fbbf24, #FF6B35);
}

.add-cart-btn svg {
    width: 22px;
    height: 22px;
}

.back-link {
    display: block;
    text-align: center;
    margin-top: 24px;
    color: var(--slate-500);
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 500;
    transition: all 0.2s;
}

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

/* 页脚 */
.footer {
    background: linear-gradient(135deg, #1a1a2e, #16213e);
    padding: 50px 20px;
    color: rgba(255,255,255,0.7);
}

.footer-inner {
    max-width: 1000px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
}

.footer-title {
    font-size: 1rem;
    font-weight: 600;
    color: white;
    margin-bottom: 16px;
}

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

.footer-links li {
    margin-bottom: 10px;
}

.footer-links a {
    color: rgba(255,255,255,0.6);
    text-decoration: none;
    font-size: 0.85rem;
    transition: color 0.2s;
}

.footer-links a:hover {
    color: white;
}

.footer-copyright {
    text-align: center;
    margin-top: 40px;
    padding-top: 20px;
    border-top: 1px solid rgba(255,255,255,0.1);
    font-size: 0.8rem;
    color: rgba(255,255,255,0.4);
}

/* 购物车页面 */
.cart-page {
    padding: 60px 20px;
    background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
    min-height: calc(100vh - 140px);
}

.cart-container {
    max-width: 950px;
    margin: 0 auto;
}

.cart-header {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 40px;
}

.cart-icon-large {
    font-size: 2.25rem;
    background: linear-gradient(135deg, rgba(255, 107, 53, 0.1), rgba(255, 107, 53, 0.05));
    padding: 12px;
    border-radius: 16px;
}

.cart-title {
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--slate-800);
}

.cart-empty {
    text-align: center;
    padding: 80px 20px;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(20px);
    border-radius: 28px;
    box-shadow: var(--shadow-lg);
    border: 1px solid rgba(226, 232, 240, 0.6);
}

.cart-empty-icon {
    font-size: 5rem;
    margin-bottom: 24px;
    animation: bounce 2s infinite;
}

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

.cart-empty-text {
    font-size: 1.2rem;
    color: var(--slate-600);
    margin-bottom: 32px;
}

.cart-empty-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 16px 36px;
    background: linear-gradient(135deg, #FF6B35, #ea580c);
    color: white;
    text-decoration: none;
    border-radius: 20px;
    font-weight: 600;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 6px 20px rgba(255, 107, 53, 0.4);
}

.cart-empty-link:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(255, 107, 53, 0.5);
    background: linear-gradient(135deg, #fbbf24, #FF6B35);
}

.cart-items {
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(20px);
    border-radius: 24px;
    box-shadow: var(--shadow-lg);
    border: 1px solid rgba(226, 232, 240, 0.6);
    overflow: hidden;
}

.cart-item {
    display: grid;
    grid-template-columns: 120px 1fr 150px 100px 80px;
    gap: 20px;
    padding: 24px;
    border-bottom: 1px solid rgba(226, 232, 240, 0.5);
    align-items: center;
    transition: background 0.3s;
}

.cart-item:last-child {
    border-bottom: none;
}

.cart-item:hover {
    background: rgba(255, 107, 53, 0.02);
}

.cart-item-image {
    width: 100px;
    height: 100px;
    object-fit: cover;
    border-radius: 16px;
    background: linear-gradient(135deg, #f8fafc, #f1f5f9);
    box-shadow: var(--shadow-sm);
}

.cart-item-info {
    flex: 1;
}

.cart-item-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--slate-800);
    margin-bottom: 10px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    line-height: 1.5;
}

.cart-item-option {
    font-size: 0.85rem;
    color: var(--slate-500);
}

.cart-item-price {
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--danger);
    text-align: right;
}

.cart-item-qty {
    text-align: center;
}

.cart-item-qty-control {
    display: inline-flex;
    align-items: center;
    background: var(--slate-100);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.cart-item-qty-btn {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: white;
    border: none;
    cursor: pointer;
    font-size: 1.1rem;
    color: var(--slate-700);
    transition: all 0.2s;
}

.cart-item-qty-btn:hover {
    background: var(--slate-200);
    color: var(--primary);
}

.cart-item-qty-input {
    width: 55px;
    text-align: center;
    font-size: 1rem;
    font-weight: 600;
    border: none;
    background: transparent;
    outline: none;
    color: var(--slate-800);
}

.cart-item-remove {
    text-align: center;
}

.cart-item-remove-btn {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(220, 38, 38, 0.08);
    color: var(--danger);
    border: none;
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.3s;
    font-size: 1.1rem;
}

.cart-item-remove-btn:hover {
    background: rgba(220, 38, 38, 0.15);
    transform: scale(1.05);
}

.cart-summary {
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(20px);
    border-radius: 24px;
    padding: 28px;
    box-shadow: var(--shadow-lg);
    border: 1px solid rgba(226, 232, 240, 0.6);
    margin-top: 24px;
}

.cart-summary-row {
    display: flex;
    justify-content: space-between;
    padding: 12px 0;
    font-size: 1rem;
}

.cart-summary-label {
    color: var(--slate-600);
}

.cart-summary-value {
    font-weight: 600;
    color: var(--slate-800);
}

.cart-summary-total {
    padding-top: 20px;
    margin-top: 20px;
    border-top: 1px solid rgba(226, 232, 240, 0.5);
}

.cart-summary-total .cart-summary-value {
    font-size: 1.6rem;
    color: var(--danger);
    font-weight: 800;
}

.cart-checkout-btn {
    width: 100%;
    margin-top: 20px;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: white;
    border: none;
    border-radius: 12px;
    padding: 16px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.cart-checkout-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 20px rgba(255,107,53,0.4);
}

.cart-checkout-btn svg {
    width: 20px;
    height: 20px;
}

/* 订单页面 */
.orders-page {
    padding: 60px 20px;
    background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
    min-height: calc(100vh - 140px);
}

.orders-container {
    max-width: 1000px;
    margin: 0 auto;
}

.orders-header {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 40px;
}

.orders-icon {
    font-size: 2.25rem;
    background: linear-gradient(135deg, rgba(255, 107, 53, 0.1), rgba(255, 107, 53, 0.05));
    padding: 12px;
    border-radius: 16px;
}

.orders-title {
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--slate-800);
}

.orders-empty {
    text-align: center;
    padding: 80px 20px;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(20px);
    border-radius: 28px;
    box-shadow: var(--shadow-lg);
    border: 1px solid rgba(226, 232, 240, 0.6);
}

.orders-empty-icon {
    font-size: 5rem;
    margin-bottom: 24px;
    animation: bounce 2s infinite;
}

.orders-empty-text {
    font-size: 1.2rem;
    color: var(--slate-600);
    margin-bottom: 32px;
}

.order-card {
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(20px);
    border-radius: 24px;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    border: 1px solid rgba(226, 232, 240, 0.6);
    margin-bottom: 24px;
    transition: all 0.3s;
}

.order-card:hover {
    box-shadow: var(--shadow-lg);
}

.order-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 24px 28px;
    background: linear-gradient(135deg, #fafafa 0%, #f5f5f5 100%);
    border-bottom: 1px solid rgba(226, 232, 240, 0.5);
}

.order-no {
    font-size: 0.95rem;
    color: var(--slate-600);
}

.order-no span {
    font-weight: 600;
    color: var(--slate-800);
    font-family: monospace;
}

.order-status {
    padding: 8px 16px;
    background: rgba(16, 185, 129, 0.1);
    color: var(--success);
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    box-shadow: 0 2px 8px rgba(16, 185, 129, 0.15);
}

.order-status.paid {
    background: rgba(16, 185, 129, 0.1);
    color: var(--success);
}

.order-status.unpaid {
    background: rgba(251, 191, 36, 0.1);
    color: var(--warning);
    box-shadow: 0 2px 8px rgba(251, 191, 36, 0.15);
}

.order-items {
    padding: 24px 28px;
}

.order-item {
    display: flex;
    gap: 20px;
    padding: 16px 0;
    border-bottom: 1px solid rgba(226, 232, 240, 0.5);
}

.order-item:last-child {
    border-bottom: none;
}

.order-item-image {
    width: 90px;
    height: 90px;
    object-fit: cover;
    border-radius: 14px;
    background: linear-gradient(135deg, #f8fafc, #f1f5f9);
    box-shadow: var(--shadow-sm);
}

.order-item-info {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.order-item-title {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--slate-800);
    margin-bottom: 8px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    line-height: 1.5;
}

.order-item-meta {
    font-size: 0.85rem;
    color: var(--slate-500);
}

.order-item-price {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--slate-800);
}

.order-summary {
    padding: 20px 28px 28px;
    text-align: right;
    border-top: 1px solid rgba(226, 232, 240, 0.5);
    background: rgba(248, 250, 252, 0.5);
}

.order-total {
    font-size: 1.15rem;
}

.order-total-label {
    color: var(--slate-600);
    margin-right: 10px;
}

.order-total-value {
    font-weight: 800;
    color: var(--danger);
    font-size: 1.5rem;
    letter-spacing: -1px;
}

.order-action {
    margin-top: 20px;
}

.order-btn {
    display: inline-block;
    padding: 10px 24px;
    background: white;
    border: 2px solid var(--primary);
    color: var(--primary);
    text-decoration: none;
    border-radius: 10px;
    font-weight: 600;
    font-size: 0.9rem;
    transition: all 0.2s;
}

.order-btn:hover {
    background: rgba(255,107,53,0.05);
}

/* ================================================
   结算页面样式 (Checkout Page)
   ================================================ */
.checkout-page {
    padding: 60px 20px;
    background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
    min-height: calc(100vh - 140px);
}

.checkout-container {
    max-width: 1200px;
    margin: 0 auto;
}

.checkout-header {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 40px;
}

.checkout-icon {
    font-size: 2.25rem;
    background: linear-gradient(135deg, rgba(255, 107, 53, 0.1), rgba(255, 107, 53, 0.05));
    padding: 12px;
    border-radius: 16px;
}

.checkout-title {
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--slate-800);
}

/* 表单容器 */
.checkout-form {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 24px;
}

@media (max-width: 1024px) {
    .checkout-form {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 640px) {
    .checkout-form {
        grid-template-columns: 1fr;
    }
}

.checkout-left {
    grid-column: span 2;
    display: flex;
    flex-direction: column;
    gap: 24px;
}

@media (max-width: 1024px) {
    .checkout-left {
        grid-column: span 2;
    }
}

@media (max-width: 640px) {
    .checkout-left {
        grid-column: span 1;
    }
}

.checkout-right {
    grid-column: span 1;
}

/* 卡片样式 */
.checkout-card {
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-radius: 24px;
    padding: 28px;
    box-shadow: var(--shadow-lg);
    border: 1px solid rgba(226, 232, 240, 0.6);
}

.checkout-card-header {
    display: flex;
    align-items: center;
    gap: 12px;
    padding-bottom: 20px;
    margin-bottom: 20px;
    border-bottom: 1px solid rgba(226, 232, 240, 0.5);
}

.checkout-card-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--slate-800);
}

/* 表单样式 */
.form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

@media (max-width: 640px) {
    .form-grid {
        grid-template-columns: 1fr;
    }
}

.form-full {
    grid-column: span 2;
}

.form-label {
    display: block;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--slate-700);
    margin-bottom: 8px;
}

.form-label.required::after {
    content: ' *';
    color: var(--danger);
}

.form-input {
    width: 100%;
    padding: 14px 16px;
    border: 2px solid rgba(226, 232, 240, 0.8);
    border-radius: 14px;
    font-size: 0.95rem;
    color: var(--slate-800);
    background: rgba(255, 255, 255, 0.8);
    transition: all 0.3s;
    outline: none;
}

.form-input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(255, 107, 53, 0.1);
}

.form-input::placeholder {
    color: var(--slate-400);
}

.form-textarea {
    width: 100%;
    padding: 14px 16px;
    border: 2px solid rgba(226, 232, 240, 0.8);
    border-radius: 14px;
    font-size: 0.95rem;
    color: var(--slate-800);
    background: rgba(255, 255, 255, 0.8);
    transition: all 0.3s;
    outline: none;
    resize: none;
    font-family: inherit;
}

.form-textarea:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(255, 107, 53, 0.1);
}

.form-select {
    width: 100%;
    padding: 14px 16px;
    border: 2px solid rgba(226, 232, 240, 0.8);
    border-radius: 14px;
    font-size: 0.95rem;
    color: var(--slate-800);
    background: rgba(255, 255, 255, 0.8);
    transition: all 0.3s;
    outline: none;
    cursor: pointer;
}

.form-select:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(255, 107, 53, 0.1);
}

/* 支付方式选择 */
.payment-options {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 16px;
}

@media (max-width: 640px) {
    .payment-options {
        grid-template-columns: 1fr;
    }
}

.payment-option {
    position: relative;
    cursor: pointer;
}

.payment-radio {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}

.payment-card {
    padding: 20px;
    border: 2px solid rgba(226, 232, 240, 0.8);
    border-radius: 16px;
    text-align: center;
    transition: all 0.3s;
    background: rgba(255, 255, 255, 0.6);
}

.payment-option:hover .payment-card {
    border-color: rgba(255, 107, 53, 0.3);
    background: rgba(255, 107, 53, 0.02);
}

.payment-option input:checked + .payment-card {
    border-color: var(--primary);
    background: rgba(255, 107, 53, 0.08);
}

.payment-icon {
    font-size: 2.25rem;
    margin-bottom: 10px;
}

.payment-name {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--slate-700);
}

/* 订单汇总 */
.order-summary {
    position: sticky;
    top: 100px;
}

.summary-items {
    max-height: 280px;
    overflow-y: auto;
    margin-bottom: 24px;
    padding-right: 8px;
}

.summary-items::-webkit-scrollbar {
    width: 6px;
}

.summary-items::-webkit-scrollbar-track {
    background: var(--slate-100);
    border-radius: 3px;
}

.summary-items::-webkit-scrollbar-thumb {
    background: var(--slate-300);
    border-radius: 3px;
}

.summary-items::-webkit-scrollbar-thumb:hover {
    background: var(--slate-400);
}

.summary-item {
    display: flex;
    gap: 14px;
    padding: 14px 0;
    border-bottom: 1px solid rgba(226, 232, 240, 0.4);
}

.summary-item:last-child {
    border-bottom: none;
}

.summary-item-image {
    width: 56px;
    height: 56px;
    object-fit: cover;
    border-radius: 12px;
    flex-shrink: 0;
    background: linear-gradient(135deg, #f8fafc, #f1f5f9);
}

.summary-item-info {
    flex: 1;
    min-width: 0;
}

.summary-item-title {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--slate-800);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    line-height: 1.5;
}

.summary-item-qty {
    font-size: 0.8rem;
    color: var(--slate-500);
    margin-top: 4px;
}

.summary-item-price {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--slate-800);
    white-space: nowrap;
}

/* 金额明细 */
.summary-totals {
    padding-top: 20px;
    border-top: 1px solid rgba(226, 232, 240, 0.5);
}

.summary-row {
    display: flex;
    justify-content: space-between;
    padding: 10px 0;
    font-size: 0.95rem;
}

.summary-label {
    color: var(--slate-600);
}

.summary-value {
    color: var(--slate-800);
    font-weight: 500;
}

.summary-total {
    padding-top: 16px;
    margin-top: 16px;
    border-top: 1px solid rgba(226, 232, 240, 0.5);
}

.summary-total .summary-label {
    font-size: 1rem;
    font-weight: 600;
    color: var(--slate-800);
}

.summary-total .summary-value {
    font-size: 1.4rem;
    font-weight: 800;
    color: var(--danger);
}

/* 提交按钮 */
.checkout-submit {
    width: 100%;
    padding: 16px;
    margin-top: 24px;
    background: linear-gradient(135deg, #FF6B35, #ea580c);
    color: white;
    border: none;
    border-radius: 16px;
    font-size: 1rem;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 6px 20px rgba(255, 107, 53, 0.4);
}

.checkout-submit:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(255, 107, 53, 0.5);
    background: linear-gradient(135deg, #fbbf24, #FF6B35);
}

.checkout-submit:active {
    transform: translateY(-1px);
}

/* 返回链接 */
.checkout-back {
    display: block;
    text-align: center;
    margin-top: 16px;
    font-size: 0.9rem;
    color: var(--slate-600);
    text-decoration: none;
    transition: color 0.2s;
}

.checkout-back:hover {
    color: var(--primary);
}

/* 错误提示 */
.checkout-error {
    padding: 16px 20px;
    background: rgba(220, 38, 38, 0.08);
    border: 1px solid rgba(220, 38, 38, 0.2);
    border-radius: 14px;
    text-align: center;
    color: var(--danger);
    font-weight: 500;
    margin-bottom: 24px;
}

/* 警告提示 */
.checkout-warning {
    padding: 16px 20px;
    background: rgba(251, 191, 36, 0.08);
    border: 1px solid rgba(251, 191, 36, 0.2);
    border-radius: 14px;
    text-align: center;
    color: var(--warning);
    font-weight: 500;
    margin-bottom: 24px;
}

/* ================================================
   支付页面样式 (Payment Page)
   ================================================ */
.pay-page {
    padding: 40px 20px;
    background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
    min-height: calc(100vh - 140px);
}

.pay-container {
    max-width: 600px;
    margin: 0 auto;
}

.pay-card {
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-radius: 24px;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    border: 1px solid rgba(226, 232, 240, 0.6);
    margin-bottom: 20px;
}

.pay-header {
    background: linear-gradient(135deg, #FF6B35, #ea580c);
    padding: 24px 28px;
    color: white;
}

.pay-title {
    font-size: 1.4rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 10px;
}

.pay-order-no {
    font-size: 0.9rem;
    opacity: 0.9;
    margin-top: 8px;
    font-family: monospace;
}

.pay-body {
    padding: 24px 28px;
}

/* 金额显示 */
.pay-amount {
    text-align: center;
    padding: 20px;
    background: rgba(220, 38, 38, 0.06);
    border-radius: 16px;
    margin-bottom: 20px;
}

.pay-amount-label {
    font-size: 0.9rem;
    color: var(--slate-600);
    margin-bottom: 8px;
}

.pay-amount-value {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--danger);
    letter-spacing: -2px;
}

.pay-payment-method {
    font-size: 0.85rem;
    color: var(--slate-500);
    margin-top: 8px;
}

/* 商品清单 */
.pay-items {
    border-top: 1px solid rgba(226, 232, 240, 0.5);
    padding-top: 20px;
    margin-bottom: 20px;
}

.pay-items-title {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--slate-800);
    margin-bottom: 16px;
}

.pay-item {
    display: flex;
    gap: 14px;
    padding: 12px 0;
    border-bottom: 1px solid rgba(226, 232, 240, 0.4);
}

.pay-item:last-child {
    border-bottom: none;
}

.pay-item-image {
    width: 64px;
    height: 64px;
    object-fit: cover;
    border-radius: 12px;
    flex-shrink: 0;
    background: linear-gradient(135deg, #f8fafc, #f1f5f9);
}

.pay-item-info {
    flex: 1;
    min-width: 0;
}

.pay-item-title {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--slate-800);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    line-height: 1.5;
}

.pay-item-option {
    font-size: 0.75rem;
    color: var(--slate-500);
    margin-top: 4px;
}

.pay-item-price {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--slate-800);
    white-space: nowrap;
}

/* 收件人信息 */
.pay-customer {
    border-top: 1px solid rgba(226, 232, 240, 0.5);
    padding-top: 20px;
    font-size: 0.9rem;
}

.pay-customer-row {
    display: flex;
    gap: 12px;
    margin-bottom: 8px;
}

.pay-customer-label {
    color: var(--slate-500);
    min-width: 80px;
    flex-shrink: 0;
}

.pay-customer-value {
    color: var(--slate-800);
    flex: 1;
    word-break: break-word;
}

/* 二维码区域 */
.pay-qr-section {
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-radius: 24px;
    padding: 32px 28px;
    box-shadow: var(--shadow-lg);
    border: 1px solid rgba(226, 232, 240, 0.6);
    text-align: center;
}

.pay-qr-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--slate-800);
    margin-bottom: 20px;
}

.pay-qr-wrapper {
    display: inline-block;
    padding: 8px;
    background: white;
    border: 2px solid rgba(226, 232, 240, 0.8);
    border-radius: 20px;
    box-shadow: var(--shadow-md);
}

.pay-qr-code {
    width: 180px;
    height: 180px;
}

.pay-qr-hint {
    font-size: 0.85rem;
    color: var(--slate-500);
    margin-top: 16px;
}

/* 模拟支付按钮 */
.pay-simulate-btn {
    width: 100%;
    max-width: 280px;
    padding: 16px;
    margin-top: 20px;
    background: linear-gradient(135deg, #FF6B35, #ea580c);
    color: white;
    border: none;
    border-radius: 16px;
    font-size: 1rem;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 6px 20px rgba(255, 107, 53, 0.4);
}

.pay-simulate-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(255, 107, 53, 0.5);
    background: linear-gradient(135deg, #fbbf24, #FF6B35);
}

/* 支付成功提示 */
.pay-success {
    background: rgba(16, 185, 129, 0.08);
    border: 1px solid rgba(16, 185, 129, 0.2);
    border-radius: 16px;
    padding: 24px;
    text-align: center;
    margin-bottom: 20px;
}

.pay-success-icon {
    font-size: 3rem;
    margin-bottom: 12px;
}

.pay-success-title {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--success);
    margin-bottom: 8px;
}

.pay-success-desc {
    font-size: 0.9rem;
    color: var(--slate-600);
}

.pay-success-actions {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-top: 20px;
}

.pay-success-btn {
    padding: 12px 24px;
    border-radius: 12px;
    font-size: 0.9rem;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.2s;
}

.pay-success-btn-primary {
    background: linear-gradient(135deg, #FF6B35, #ea580c);
    color: white;
}

.pay-success-btn-primary:hover {
    background: linear-gradient(135deg, #fbbf24, #FF6B35);
}

.pay-success-btn-secondary {
    background: white;
    color: var(--slate-700);
    border: 1px solid rgba(226, 232, 240, 0.8);
}

.pay-success-btn-secondary:hover {
    background: var(--slate-50);
}

/* 订单状态 */
.pay-status {
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-radius: 24px;
    padding: 40px 28px;
    box-shadow: var(--shadow-lg);
    border: 1px solid rgba(226, 232, 240, 0.6);
    text-align: center;
}

.pay-status-icon {
    font-size: 4rem;
    margin-bottom: 16px;
}

.pay-status-title {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--slate-800);
    margin-bottom: 8px;
}

.pay-status-label {
    color: var(--slate-600);
    font-size: 0.9rem;
}

.pay-status-value {
    color: var(--primary);
    font-weight: 600;
}

.pay-status-time {
    font-size: 0.85rem;
    color: var(--slate-500);
    margin-top: 12px;
}

.pay-back-link {
    display: inline-block;
    margin-top: 24px;
    padding: 14px 32px;
    background: linear-gradient(135deg, #FF6B35, #ea580c);
    color: white;
    text-decoration: none;
    border-radius: 12px;
    font-weight: 600;
    transition: all 0.2s;
    box-shadow: 0 4px 12px rgba(255, 107, 53, 0.3);
}

.pay-back-link:hover {
    background: linear-gradient(135deg, #fbbf24, #FF6B35);
}

/* 订单不存在 */
.pay-not-found {
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-radius: 24px;
    padding: 48px 28px;
    box-shadow: var(--shadow-lg);
    border: 1px solid rgba(226, 232, 240, 0.6);
    text-align: center;
}

.pay-not-found-icon {
    font-size: 4rem;
    margin-bottom: 16px;
}

.pay-not-found-title {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--slate-800);
    margin-bottom: 12px;
}

.pay-not-found-desc {
    font-size: 0.9rem;
    color: var(--slate-600);
    margin-bottom: 8px;
}

.pay-order-no-display {
    font-family: monospace;
    font-size: 0.9rem;
    color: var(--slate-500);
    background: var(--slate-100);
    padding: 6px 12px;
    border-radius: 8px;
    display: inline-block;
}

.pay-error {
    font-size: 0.85rem;
    color: var(--danger);
    background: rgba(220, 38, 38, 0.06);
    border-radius: 10px;
    padding: 12px;
    margin-top: 16px;
    text-align: left;
    font-family: monospace;
}

/* ================================================
   响应式优化 (Mobile Responsive)
   ================================================ */
@media (max-width: 768px) {
    /* 导航栏 */
    .navbar-inner {
        padding: 0 16px;
        height: 65px;
    }
    
    .navbar-logo {
        width: 38px;
        height: 38px;
    }
    
    .navbar-name {
        font-size: 1.2rem;
    }
    
    .navbar-links {
        gap: 16px;
    }
    
    .nav-link {
        font-size: 0.85rem;
        padding: 6px 12px;
    }

    /* 商品详情页 */
    .detail-page {
        padding: 40px 16px;
    }
    
    .detail-card {
        border-radius: 20px;
    }
    
    .detail-row {
        grid-template-columns: 1fr;
    }
    
    .detail-image-box {
        padding: 24px;
    }
    
    .detail-image-wrapper {
        border-radius: 16px;
    }
    
    .detail-info {
        padding: 28px 24px;
    }
    
    .detail-title {
        font-size: 1.3rem;
    }
    
    .detail-price-box {
        padding: 18px;
    }
    
    .detail-price {
        font-size: 2rem;
    }
    
    .detail-meta {
        flex-wrap: wrap;
        gap: 16px;
    }
    
    .detail-form {
        margin-top: 24px;
    }
    
    .form-group {
        margin-bottom: 18px;
    }
    
    .qty-btn {
        width: 44px;
        height: 44px;
    }
    
    .add-cart-btn {
        padding: 16px;
        font-size: 1rem;
        margin-top: 24px;
    }
    
    .add-cart-btn svg {
        width: 20px;
        height: 20px;
    }

    /* Hero 区域 */
    .hero {
        padding: 80px 16px;
    }
    
    .hero-icon {
        width: 80px;
        height: 80px;
        margin-bottom: 24px;
    }
    
    .hero-icon svg {
        width: 40px;
        height: 40px;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-desc {
        font-size: 1rem;
        margin-bottom: 40px;
    }
    
    .search-box {
        max-width: 100%;
    }
    
    .search-form {
        padding: 6px;
    }
    
    .search-input {
        padding: 14px 16px;
        font-size: 0.9rem;
    }
    
    .search-btn {
        padding: 14px 24px;
        font-size: 0.9rem;
    }

    /* 特色区域 */
    .features {
        padding: 60px 16px;
    }
    
    .features-grid {
        gap: 16px;
    }
    
    .feature-card {
        padding: 32px 20px;
    }
    
    .feature-icon {
        width: 70px;
        height: 70px;
        font-size: 2.5rem;
        margin-bottom: 16px;
    }
    
    .feature-title {
        font-size: 1.2rem;
    }
    
    .feature-desc {
        font-size: 0.9rem;
    }

    /* 商品区域 */
    .products {
        padding: 60px 16px;
    }
    
    .section-title {
        font-size: 1.75rem;
        margin-bottom: 32px;
    }
    
    .products-grid {
        gap: 20px;
    }
    
    .product-card {
        border-radius: 20px;
    }
    
    .product-info {
        padding: 18px;
    }
    
    .product-title {
        font-size: 0.95rem;
    }
    
    .product-price {
        font-size: 1.5rem;
    }

    /* 购物车页面 */
    .cart-page {
        padding: 40px 16px;
    }
    
    .cart-header {
        margin-bottom: 24px;
    }
    
    .cart-title {
        font-size: 1.5rem;
    }
    
    .cart-item {
        grid-template-columns: 80px 1fr 100px 70px 60px;
        gap: 12px;
        padding: 16px;
    }
    
    .cart-item-image {
        width: 70px;
        height: 70px;
        border-radius: 12px;
    }
    
    .cart-item-title {
        font-size: 0.85rem;
    }
    
    .cart-item-price {
        font-size: 1.1rem;
    }
    
    .cart-item-qty-btn {
        width: 32px;
        height: 32px;
    }
    
    .cart-item-qty-input {
        width: 45px;
        font-size: 0.9rem;
    }
    
    .cart-item-remove-btn {
        width: 32px;
        height: 32px;
        font-size: 0.9rem;
    }

    /* 结算页面 */
    .checkout-page {
        padding: 40px 16px;
    }
    
    .checkout-header {
        margin-bottom: 24px;
    }
    
    .checkout-title {
        font-size: 1.5rem;
    }
    
    .checkout-card {
        padding: 20px;
    }
    
    .checkout-card-title {
        font-size: 1.1rem;
    }
    
    .form-grid {
        gap: 14px;
    }
    
    .form-input,
    .form-textarea,
    .form-select {
        padding: 12px 14px;
        font-size: 0.9rem;
    }
    
    .payment-options {
        gap: 12px;
    }
    
    .payment-card {
        padding: 16px 12px;
    }
    
    .payment-icon {
        font-size: 1.75rem;
    }
    
    .payment-name {
        font-size: 0.8rem;
    }
    
    .summary-item-image {
        width: 48px;
        height: 48px;
    }
    
    .summary-item-title {
        font-size: 0.8rem;
    }
    
    .checkout-submit {
        padding: 14px;
        font-size: 0.9rem;
    }

    /* 支付页面 */
    .pay-page {
        padding: 30px 16px;
    }
    
    .pay-header {
        padding: 20px 20px;
    }
    
    .pay-title {
        font-size: 1.2rem;
    }
    
    .pay-body {
        padding: 20px;
    }
    
    .pay-amount-value {
        font-size: 2rem;
    }
    
    .pay-item {
        gap: 10px;
    }
    
    .pay-item-image {
        width: 56px;
        height: 56px;
    }
    
    .pay-item-title {
        font-size: 0.85rem;
    }
    
    .pay-qr-section {
        padding: 24px 20px;
    }
    
    .pay-qr-code {
        width: 150px;
        height: 150px;
    }
    
    /* 订单页面 */
    .orders-page {
        padding: 40px 16px;
    }
    
    .orders-header {
        margin-bottom: 24px;
    }
    
    .orders-title {
        font-size: 1.5rem;
    }
    
    .order-header {
        padding: 16px 20px;
        flex-direction: column;
        gap: 10px;
        align-items: flex-start;
    }
    
    .order-items {
        padding: 16px 20px;
    }
    
    .order-item {
        gap: 14px;
        padding: 12px 0;
    }
    
    .order-item-image {
        width: 70px;
        height: 70px;
    }
    
    .order-item-title {
        font-size: 0.85rem;
    }
    
    .order-summary {
        padding: 16px 20px;
    }
    
    .order-total-value {
        font-size: 1.3rem;
    }
}

@media (max-width: 480px) {
    /* 导航栏 */
    .navbar-links {
        gap: 8px;
    }
    
    .nav-link {
        font-size: 0.75rem;
        padding: 4px 8px;
    }
    
    .nav-cart {
        padding: 6px;
    }

    /* Hero */
    .hero-title {
        font-size: 1.6rem;
    }
    
    .search-form {
        flex-direction: column;
        gap: 10px;
        padding: 12px;
    }
    
    .search-btn {
        width: 100%;
    }

    /* 商品卡片 */
    .products-grid {
        grid-template-columns: 1fr;
    }

    /* 购物车 */
    .cart-item {
        grid-template-columns: 60px 1fr;
        grid-template-areas:
            "image info"
            "image price"
            "qty remove";
        gap: 10px;
    }
    
    .cart-item-image {
        grid-area: image;
        width: 60px;
        height: 60px;
    }
    
    .cart-item-info {
        grid-area: info;
    }
    
    .cart-item-price {
        grid-area: price;
        text-align: left;
        font-size: 1rem;
    }
    
    .cart-item-qty {
        grid-area: qty;
        text-align: left;
    }
    
    .cart-item-remove {
        grid-area: remove;
        text-align: left;
    }

    /* 结算页面 */
    .checkout-form {
        grid-template-columns: 1fr !important;
    }
    
    .checkout-left {
        grid-column: span 1 !important;
    }
    
    .payment-options {
        grid-template-columns: 1fr !important;
    }

    /* 支付页面 */
    .pay-amount-value {
        font-size: 1.75rem;
    }
    
    .pay-qr-code {
        width: 120px;
        height: 120px;
    }

    /* 商品详情页 */
    .detail-title {
        font-size: 1.15rem;
    }
    
    .detail-price {
        font-size: 1.75rem;
    }
    
    .detail-image-box {
        padding: 20px;
    }
    
    .detail-info {
        padding: 24px 20px;
    }
    
    .detail-source {
        padding: 6px 14px;
        font-size: 0.8rem;
    }
    
    .detail-price-box {
        padding: 16px;
        margin-bottom: 20px;
    }
    
    .qty-input {
        width: 60px;
    }
    
    .add-cart-btn {
        padding: 14px;
        font-size: 0.95rem;
    }
}