/* ===== 全局样式与变量 ===== */
:root {
    --primary: #4f46e5;
    --primary-light: #6366f1;
    --primary-dark: #4338ca;
    --primary-50: #eef2ff;
    --primary-100: #e0e7ff;
    --primary-200: #c7d2fe;
    --accent: #f59e0b;
    --success: #10b981;
    --danger: #ef4444;
    --warning: #f59e0b;
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --text-muted: #94a3b8;
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-tertiary: #f1f5f9;
    --border: #e2e8f0;
    --border-light: #f1f5f9;
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
    --shadow: 0 1px 3px rgba(0,0,0,0.1), 0 1px 2px rgba(0,0,0,0.06);
    --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.1), 0 2px 4px -1px rgba(0,0,0,0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.1), 0 4px 6px -2px rgba(0,0,0,0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0,0,0,0.1), 0 10px 10px -5px rgba(0,0,0,0.04);
    --radius-sm: 6px;
    --radius: 10px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

body {
    font-family: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    color: var(--text-primary);
    background: var(--bg-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ===== 按钮 ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 10px 20px;
    border-radius: var(--radius);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    border: none;
    transition: var(--transition);
    text-decoration: none;
    white-space: nowrap;
    font-family: inherit;
}

.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    color: white;
    box-shadow: 0 4px 12px rgba(79, 70, 229, 0.35);
}
.btn-primary:hover {
    background: linear-gradient(135deg, var(--primary-dark), var(--primary));
    box-shadow: 0 6px 20px rgba(79, 70, 229, 0.45);
}

.btn-outline {
    background: transparent;
    color: var(--primary);
    border: 2px solid var(--primary);
}
.btn-outline:hover {
    background: var(--primary-50);
}

.btn-auction {
    background: linear-gradient(135deg, #f59e0b, #f97316);
    color: white;
    box-shadow: 0 4px 12px rgba(245, 158, 11, 0.35);
}
.btn-auction:hover {
    box-shadow: 0 6px 20px rgba(245, 158, 11, 0.45);
}

.btn-sm { padding: 8px 16px; font-size: 13px; }
.btn-lg { padding: 14px 32px; font-size: 16px; }
.btn-block { width: 100%; }

/* ===== 顶部公告栏 ===== */
.top-bar {
    background: linear-gradient(135deg, var(--primary-dark), var(--primary));
    color: white;
    font-size: 13px;
    padding: 8px 0;
}
.top-bar-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.top-bar-right {
    display: flex;
    align-items: center;
    gap: 8px;
}
.top-bar-link {
    color: rgba(255,255,255,0.85);
    text-decoration: none;
    transition: color 0.2s;
}
.top-bar-link:hover { color: white; }
.top-bar-divider { color: rgba(255,255,255,0.3); }
.top-bar-phone { font-weight: 500; }

/* ===== 导航栏 ===== */
.navbar {
    background: rgba(255,255,255,0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-light);
    padding: 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    transition: var(--transition);
}
.navbar.scrolled {
    box-shadow: var(--shadow-md);
}
.navbar-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    flex-shrink: 0;
}
.logo-img {
    height: 40px;
    width: auto;
    border-radius: 8px;
}
.logo-text {
    display: flex;
    flex-direction: column;
}
.logo-title {
    font-size: 20px;
    font-weight: 700;
    color: var(--primary);
    line-height: 1.2;
}
.logo-subtitle {
    font-size: 11px;
    color: var(--text-muted);
    letter-spacing: 1px;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 4px;
    list-style: none;
}
.nav-link {
    padding: 8px 16px;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 15px;
    font-weight: 500;
    border-radius: var(--radius-sm);
    transition: var(--transition);
    position: relative;
}
.nav-link:hover, .nav-link.active {
    color: var(--primary);
    background: var(--primary-50);
}
.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 50%;
    transform: translateX(-50%);
    width: 20px;
    height: 3px;
    background: var(--primary);
    border-radius: 3px;
}

.nav-actions {
    display: flex;
    gap: 10px;
    flex-shrink: 0;
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}
.mobile-menu-btn span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: var(--transition);
}

.mobile-menu {
    display: none;
    flex-direction: column;
    padding: 16px 24px 24px;
    background: white;
    border-top: 1px solid var(--border-light);
}
.mobile-menu.open { display: flex; }
.mobile-link {
    padding: 12px 0;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 15px;
    font-weight: 500;
    border-bottom: 1px solid var(--border-light);
}
.mobile-link:hover { color: var(--primary); }
.mobile-actions {
    display: flex;
    gap: 12px;
    margin-top: 16px;
}

/* ===== Hero 区域 ===== */
.hero {
    position: relative;
    padding: 80px 0 60px;
    overflow: hidden;
}
.hero-bg {
    position: absolute;
    inset: 0;
    background: 
        radial-gradient(ellipse 80% 60% at 20% 40%, rgba(79,70,229,0.08) 0%, transparent 70%),
        radial-gradient(ellipse 60% 80% at 80% 30%, rgba(99,102,241,0.06) 0%, transparent 70%),
        radial-gradient(ellipse 50% 50% at 50% 80%, rgba(245,158,11,0.04) 0%, transparent 70%),
        linear-gradient(180deg, var(--primary-50) 0%, var(--bg-primary) 100%);
}
.hero-content {
    position: relative;
    z-index: 1;
}
.hero-text { max-width: 700px; }
.hero-title {
    font-size: 52px;
    font-weight: 900;
    line-height: 1.2;
    color: var(--text-primary);
    margin-bottom: 16px;
    letter-spacing: -1px;
}
.hero-highlight {
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.hero-desc {
    font-size: 17px;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 32px;
}

/* 搜索框 */
.hero-search { margin-bottom: 20px; }
.search-box {
    display: flex;
    align-items: center;
    background: white;
    border-radius: 16px;
    box-shadow: var(--shadow-lg);
    overflow: hidden;
    border: 2px solid var(--primary-100);
    transition: var(--transition);
}
.search-box:focus-within {
    border-color: var(--primary);
    box-shadow: 0 0 0 4px rgba(79,70,229,0.1), var(--shadow-lg);
}
.search-type {
    position: relative;
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 16px 18px;
    color: var(--primary);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    border-right: 1px solid var(--border);
    white-space: nowrap;
    user-select: none;
}
.search-type:hover .search-dropdown { display: block; }
.search-dropdown {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    background: white;
    border-radius: var(--radius);
    box-shadow: var(--shadow-xl);
    min-width: 130px;
    z-index: 10;
    overflow: hidden;
    margin-top: 8px;
}
.search-dropdown-item {
    padding: 10px 18px;
    font-size: 14px;
    color: var(--text-secondary);
    cursor: pointer;
    transition: var(--transition);
}
.search-dropdown-item:hover, .search-dropdown-item.active {
    background: var(--primary-50);
    color: var(--primary);
}
.search-input {
    flex: 1;
    border: none;
    outline: none;
    padding: 16px 20px;
    font-size: 15px;
    color: var(--text-primary);
    background: transparent;
    font-family: inherit;
}
.search-input::placeholder { color: var(--text-muted); }
.search-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 14px 28px;
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    color: white;
    border: none;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    font-family: inherit;
    white-space: nowrap;
}
.search-btn:hover {
    background: linear-gradient(135deg, var(--primary-dark), var(--primary));
}

.hero-tags {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
}
.hero-tag { color: var(--text-muted); }
.hero-tag-link {
    color: var(--text-secondary);
    text-decoration: none;
    padding: 4px 10px;
    border-radius: var(--radius-sm);
    transition: var(--transition);
}
.hero-tag-link:hover {
    color: var(--primary);
    background: var(--primary-50);
}

/* 统计卡片 */
.hero-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-top: 48px;
}
.stat-card {
    background: white;
    border-radius: var(--radius-lg);
    padding: 24px;
    text-align: center;
    box-shadow: var(--shadow);
    border: 1px solid var(--border-light);
    transition: var(--transition);
}
.stat-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}
.stat-number {
    font-size: 32px;
    font-weight: 900;
    color: var(--primary);
    line-height: 1;
    margin-bottom: 8px;
}
.stat-label {
    font-size: 14px;
    color: var(--text-muted);
    font-weight: 500;
}

/* ===== 通用 Section ===== */
.section-header {
    text-align: center;
    margin-bottom: 48px;
}
.section-title {
    font-size: 36px;
    font-weight: 800;
    color: var(--text-primary);
    margin-bottom: 12px;
    letter-spacing: -0.5px;
}
.section-desc {
    font-size: 16px;
    color: var(--text-secondary);
    max-width: 560px;
    margin: 0 auto;
}
.section-action {
    text-align: center;
    margin-top: 40px;
}

/* ===== 商标分类 ===== */
.categories {
    padding: 80px 0;
    background: var(--bg-secondary);
}
.category-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}
.category-card {
    background: white;
    border-radius: var(--radius-lg);
    padding: 28px 24px;
    text-align: center;
    cursor: pointer;
    border: 1px solid var(--border-light);
    transition: var(--transition);
}
.category-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-200);
}
.category-icon {
    width: 60px;
    height: 60px;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 16px;
}
.category-name {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 6px;
}
.category-count {
    font-size: 13px;
    color: var(--text-muted);
}
.category-more {
    border: 2px dashed var(--primary-200);
    background: var(--primary-50);
}
.category-more:hover {
    background: white;
    border-style: solid;
    border-color: var(--primary);
}

/* ===== 热门商标 ===== */
.trademarks {
    padding: 80px 0;
}
.trademark-tabs {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-top: 20px;
}
.tab-btn {
    padding: 8px 20px;
    border-radius: 100px;
    border: 1px solid var(--border);
    background: white;
    color: var(--text-secondary);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    font-family: inherit;
}
.tab-btn:hover { border-color: var(--primary-200); color: var(--primary); }
.tab-btn.active {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
}

.trademark-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}
.trademark-card {
    background: white;
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--border-light);
    transition: var(--transition);
    position: relative;
}
.trademark-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-200);
}
.trademark-card.hidden {
    display: none;
}

.trademark-badge {
    position: absolute;
    top: 12px;
    left: 12px;
    padding: 4px 10px;
    border-radius: 100px;
    font-size: 11px;
    font-weight: 600;
    z-index: 2;
}
.badge-hot { background: #fef2f2; color: #dc2626; }
.badge-new { background: #f0fdf4; color: #16a34a; }
.badge-auction { background: #fffbeb; color: #d97706; }
.badge-recommend { background: #eff6ff; color: #2563eb; }
.badge-sell { background: #faf5ff; color: #9333ea; }

.trademark-img {
    height: 140px;
    display: flex;
    align-items: center;
    justify-content: center;
}
.trademark-char {
    font-size: 56px;
    font-weight: 900;
    color: rgba(79,70,229,0.25);
}

.trademark-info {
    padding: 16px 20px 20px;
}
.trademark-name {
    font-size: 17px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 8px;
}
.trademark-meta {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 8px;
}
.trademark-class {
    font-size: 12px;
    padding: 3px 8px;
    border-radius: 4px;
    background: var(--primary-50);
    color: var(--primary);
    font-weight: 500;
}
.trademark-status {
    font-size: 12px;
    padding: 3px 8px;
    border-radius: 4px;
    font-weight: 500;
}
.status-valid { background: #f0fdf4; color: #16a34a; }
.status-pending { background: #fffbeb; color: #d97706; }

.trademark-desc {
    font-size: 13px;
    color: var(--text-muted);
    line-height: 1.6;
    margin-bottom: 16px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.trademark-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 12px;
    border-top: 1px solid var(--border-light);
}
.trademark-price {
    display: flex;
    align-items: baseline;
    gap: 2px;
}
.price-symbol {
    font-size: 14px;
    font-weight: 600;
    color: #dc2626;
}
.price-value {
    font-size: 22px;
    font-weight: 800;
    color: #dc2626;
}
.price-auction {
    font-size: 11px;
    color: var(--text-muted);
    margin-left: 4px;
}

/* ===== 交易流程 ===== */
.process {
    padding: 80px 0;
    background: var(--bg-secondary);
}
.process-grid {
    display: flex;
    align-items: flex-start;
    justify-content: center;
    gap: 0;
}
.process-card {
    flex: 1;
    max-width: 220px;
    text-align: center;
    padding: 32px 20px;
    position: relative;
}
.process-step {
    font-size: 48px;
    font-weight: 900;
    color: var(--primary-100);
    line-height: 1;
    margin-bottom: 12px;
}
.process-icon {
    width: 64px;
    height: 64px;
    border-radius: 16px;
    background: var(--primary-50);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 16px;
}
.process-title {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 8px;
}
.process-desc {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.7;
}
.process-connector {
    padding-top: 70px;
    flex-shrink: 0;
}

/* ===== 平台优势 ===== */
.advantages {
    padding: 80px 0;
}
.advantage-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
.advantage-card {
    background: white;
    border-radius: var(--radius-lg);
    padding: 32px;
    border: 1px solid var(--border-light);
    transition: var(--transition);
}
.advantage-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-200);
}
.advantage-icon {
    width: 56px;
    height: 56px;
    border-radius: 14px;
    background: var(--primary-50);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
}
.advantage-title {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 10px;
}
.advantage-desc {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* ===== 客户评价 ===== */
.testimonials {
    padding: 80px 0;
    background: var(--bg-secondary);
}
.testimonial-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
.testimonial-card {
    background: white;
    border-radius: var(--radius-lg);
    padding: 32px;
    border: 1px solid var(--border-light);
    transition: var(--transition);
}
.testimonial-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}
.testimonial-stars {
    color: #f59e0b;
    font-size: 16px;
    margin-bottom: 16px;
    letter-spacing: 2px;
}
.testimonial-text {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 20px;
    font-style: italic;
}
.testimonial-author {
    display: flex;
    align-items: center;
    gap: 12px;
}
.author-avatar {
    width: 44px;
    height: 44px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 16px;
    font-weight: 700;
    flex-shrink: 0;
}
.author-name {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
}
.author-title {
    font-size: 12px;
    color: var(--text-muted);
}

/* ===== 关于我们 ===== */
.about {
    padding: 80px 0;
}
.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}
.about-title {
    font-size: 36px;
    font-weight: 800;
    color: var(--text-primary);
    margin-bottom: 20px;
}
.about-desc {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 24px;
}
.about-features {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 14px;
    margin-bottom: 32px;
}
.about-feature {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 14px;
    color: var(--text-primary);
    font-weight: 500;
}
.about-actions {
    display: flex;
    gap: 12px;
}

.about-visual {
    position: relative;
    height: 400px;
}
.about-illustration {
    position: relative;
    width: 100%;
    height: 100%;
}
.illustration-card {
    position: absolute;
    background: white;
    border-radius: var(--radius-lg);
    padding: 16px 24px;
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 600;
    font-size: 14px;
    animation: float 3s ease-in-out infinite;
}
.mini-icon { font-size: 24px; }
.card-1 { top: 20px; left: 20px; animation-delay: 0s; }
.card-2 { top: 20px; right: 20px; animation-delay: 1s; }
.card-3 { bottom: 40px; left: 50%; transform: translateX(-50%); animation-delay: 2s; }
.illustration-center {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 120px;
    height: 120px;
    border-radius: 24px;
    background: linear-gradient(135deg, var(--primary-50), var(--primary-100));
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 8px 32px rgba(79,70,229,0.2);
}
.illustration-logo {
    width: 80px;
    height: auto;
    border-radius: 16px;
}

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

/* ===== 页脚 ===== */
.footer {
    background: #1e293b;
    color: rgba(255,255,255,0.7);
    padding: 60px 0 0;
}
.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr 1.5fr;
    gap: 40px;
    padding-bottom: 40px;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}
.footer-logo {
    margin-bottom: 16px;
}
.footer-logo .logo-title { color: white; }
.footer-logo .logo-subtitle { color: rgba(255,255,255,0.5); }
.footer-desc {
    font-size: 14px;
    line-height: 1.7;
    margin-bottom: 16px;
}
.footer-social {
    display: flex;
    gap: 10px;
}
.social-link {
    width: 36px;
    height: 36px;
    border-radius: 10px;
    background: rgba(255,255,255,0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    color: rgba(255,255,255,0.7);
    text-decoration: none;
    transition: var(--transition);
}
.social-link:hover {
    background: var(--primary);
    color: white;
}
.footer-heading {
    font-size: 15px;
    font-weight: 600;
    color: white;
    margin-bottom: 16px;
}
.footer-link {
    display: block;
    font-size: 14px;
    color: rgba(255,255,255,0.6);
    text-decoration: none;
    padding: 5px 0;
    transition: var(--transition);
}
.footer-link:hover { color: white; padding-left: 4px; }
.footer-contact {
    display: flex;
    flex-direction: column;
    gap: 10px;
    font-size: 13px;
}
.footer-bottom {
    padding: 20px 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.footer-copyright { font-size: 13px; }
.footer-badges {
    display: flex;
    gap: 12px;
}
.badge {
    font-size: 12px;
    padding: 4px 10px;
    border-radius: 4px;
    background: rgba(255,255,255,0.08);
}

/* ===== 弹窗 ===== */
.modal-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.5);
    backdrop-filter: blur(4px);
    z-index: 2000;
    justify-content: center;
    padding: 20px;
    overflow-y: auto;
}
.modal-overlay.open {
    display: flex;
    animation: fadeIn 0.3s;
}
.modal {
    background: white;
    border-radius: var(--radius-xl);
    padding: 40px;
    max-width: 440px;
    max-height: 90vh;
    overflow-y: auto;
    width: 100%;
    position: relative;
    margin: auto;
    animation: slideUp 0.3s;
}
.modal-lg { max-width: 720px; }
.modal-close {
    position: absolute;
    top: 16px;
    right: 20px;
    background: none;
    border: none;
    font-size: 28px;
    cursor: pointer;
    color: var(--text-muted);
    line-height: 1;
    transition: var(--transition);
}
.modal-close:hover { color: var(--text-primary); }
.modal-title {
    font-size: 24px;
    font-weight: 800;
    color: var(--text-primary);
    margin-bottom: 6px;
}
.modal-subtitle {
    font-size: 14px;
    color: var(--text-muted);
    margin-bottom: 24px;
}
.modal-form { display: flex; flex-direction: column; gap: 16px; }
.form-group { display: flex; flex-direction: column; gap: 6px; }
.form-label { font-size: 13px; font-weight: 600; color: var(--text-primary); }
.form-input {
    padding: 12px 14px;
    border: 1.5px solid var(--border);
    border-radius: var(--radius);
    font-size: 14px;
    outline: none;
    transition: var(--transition);
    font-family: inherit;
}
.form-input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(79,70,229,0.1);
}
.form-input-group {
    display: flex;
    gap: 10px;
}
.form-input-group .form-input { flex: 1; }
.form-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.form-checkbox {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 13px;
    color: var(--text-secondary);
}
.form-link {
    font-size: 13px;
    color: var(--primary);
    text-decoration: none;
}
.modal-footer-text {
    text-align: center;
    margin-top: 20px;
    font-size: 14px;
    color: var(--text-muted);
}
.modal-footer-text a {
    color: var(--primary);
    text-decoration: none;
    font-weight: 600;
}

/* 详情弹窗 */
.detail-content {
    display: grid;
    grid-template-columns: 240px 1fr;
    gap: 32px;
}
.detail-img {
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    height: 240px;
}
.detail-char {
    font-size: 80px;
    font-weight: 900;
    color: rgba(79,70,229,0.25);
}
.detail-title {
    font-size: 24px;
    font-weight: 800;
    margin-bottom: 10px;
}
.detail-meta {
    display: flex;
    gap: 10px;
    margin-bottom: 16px;
}
.detail-tag {
    font-size: 13px;
    padding: 4px 12px;
    border-radius: 6px;
    background: var(--primary-50);
    color: var(--primary);
    font-weight: 500;
}
.detail-price {
    margin-bottom: 16px;
}
.detail-price-label {
    font-size: 13px;
    color: var(--text-muted);
    margin-right: 8px;
}
.detail-price-value {
    font-size: 28px;
    font-weight: 800;
    color: #dc2626;
}
.detail-specs {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    margin-bottom: 16px;
    padding: 16px;
    background: var(--bg-secondary);
    border-radius: var(--radius);
}
.spec-item { display: flex; flex-direction: column; gap: 2px; }
.spec-label { font-size: 12px; color: var(--text-muted); }
.spec-value { font-size: 13px; font-weight: 600; color: var(--text-primary); }
.detail-desc {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 20px;
}
.detail-actions {
    display: flex;
    gap: 12px;
}

/* 回到顶部 */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 44px;
    height: 44px;
    border-radius: 12px;
    background: var(--primary);
    color: white;
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 12px rgba(79,70,229,0.35);
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: var(--transition);
    z-index: 999;
}
.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}
.back-to-top:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
}

/* ===== 右下角留言浮动按钮 ===== */
.consult-float-btn {
    position: fixed;
    bottom: 90px;
    right: 30px;
    z-index: 998;
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 22px;
    background: linear-gradient(135deg, #4f46e5 0%, #7c3aed 100%);
    color: white;
    border: none;
    border-radius: 50px;
    cursor: pointer;
    font-size: 15px;
    font-weight: 600;
    font-family: inherit;
    box-shadow: 0 4px 20px rgba(79,70,229,0.4);
    transition: all 0.3s ease;
    animation: consultFloatPulse 2.5s ease-in-out infinite;
}
.consult-float-btn:hover {
    transform: translateY(-3px) scale(1.03);
    box-shadow: 0 6px 28px rgba(79,70,229,0.55);
    animation: none;
}
.consult-float-btn svg {
    flex-shrink: 0;
}
.consult-float-btn-text {
    white-space: nowrap;
}
.consult-float-badge {
    position: absolute;
    top: -4px;
    right: -4px;
    width: 20px;
    height: 20px;
    background: #ef4444;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 11px;
    font-weight: 700;
    border: 2px solid white;
    animation: none;
}
@keyframes consultFloatPulse {
    0%, 100% { box-shadow: 0 4px 20px rgba(79,70,229,0.4); }
    50% { box-shadow: 0 4px 30px rgba(79,70,229,0.65); }
}

/* 动画 */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}
@keyframes slideUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
    .category-grid { grid-template-columns: repeat(3, 1fr); }
    .trademark-grid { grid-template-columns: repeat(3, 1fr); }
    .footer-grid { grid-template-columns: repeat(3, 1fr); }
    .about-content { grid-template-columns: 1fr; gap: 40px; }
    .about-visual { height: 300px; }
    .process-grid { flex-wrap: wrap; }
    .process-connector { display: none; }
    .process-card { max-width: 45%; }
}

@media (max-width: 768px) {
    .top-bar-content { flex-direction: column; gap: 6px; text-align: center; }
    .nav-links { display: none; }
    .nav-actions { display: none; }
    .mobile-menu-btn { display: flex; }
    
    .hero-title { font-size: 36px; }
    .hero-desc { font-size: 15px; }
    .search-type { display: none; }
    .search-btn { padding: 12px 16px; font-size: 13px; }
    .search-btn svg { display: none; }
    .hero-stats { grid-template-columns: repeat(2, 1fr); }
    .stat-number { font-size: 24px; }
    
    .section-title { font-size: 28px; }
    .category-grid { grid-template-columns: repeat(2, 1fr); }
    .trademark-grid { grid-template-columns: repeat(2, 1fr); }
    .advantage-grid { grid-template-columns: repeat(2, 1fr); }
    .testimonial-grid { grid-template-columns: 1fr; }
    
    .about-features { grid-template-columns: 1fr; }
    .about-actions { flex-direction: column; }
    .about-visual { display: none; }
    
    .footer-grid { grid-template-columns: 1fr; }
    .footer-bottom { flex-direction: column; gap: 12px; text-align: center; }
    
    .detail-content { grid-template-columns: 1fr; }
    .modal { padding: 24px; }
}

@media (max-width: 480px) {
    .hero-title { font-size: 30px; }
    .category-grid { grid-template-columns: 1fr; }
    .trademark-grid { grid-template-columns: 1fr; }
    .advantage-grid { grid-template-columns: 1fr; }
    .hero-stats { gap: 12px; }
    .trademark-card { padding: 12px; }
    .trademark-img { height: 140px; }
    .hero-search { padding: 0 8px; }
    .search-box { flex-direction: column; border-radius: 12px; }
    .search-input { border-left: none; border-top: 1px solid #e2e8f0; padding: 12px; }
    .search-btn { border-radius: 0 0 10px 10px; justify-content: center; }
    .hero-tags { flex-wrap: wrap; justify-content: center; }
    .container { padding: 0 16px; }
    .section-header { padding: 0 4px; }
    .footer-contact span { font-size: 12px; }
    .consult-float-btn { bottom: 80px; right: 16px; padding: 10px 16px; font-size: 13px; }
    .consult-float-btn svg { width: 16px; height: 16px; }
}

/* ===== 留言咨询弹窗 ===== */
.consult-modal {
    max-width: 520px;
}
.consult-modal-header {
    text-align: center;
    margin-bottom: 20px;
}
.consult-modal-icon {
    font-size: 40px;
    margin-bottom: 8px;
}
.consult-tm-info {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 16px;
    background: var(--primary-50);
    border-radius: var(--radius);
    margin-bottom: 20px;
    flex-wrap: wrap;
}
.consult-tm-label {
    font-size: 13px;
    color: var(--text-muted);
    font-weight: 500;
}
.consult-tm-name {
    font-size: 15px;
    font-weight: 700;
    color: var(--primary);
}
.consult-tm-reg {
    font-size: 13px;
    color: var(--text-secondary);
}
.consult-type-group {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
}
.consult-type-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 12px;
    border: 2px solid var(--border);
    border-radius: var(--radius);
    cursor: pointer;
    transition: var(--transition);
    font-size: 13px;
}
.consult-type-item:hover {
    border-color: var(--primary-light);
}
.consult-type-item:has(input:checked) {
    border-color: var(--primary);
    background: var(--primary-50);
    color: var(--primary);
    font-weight: 600;
}
.consult-type-item input[type="radio"] {
    display: none;
}
.consult-type-radio {
    width: 16px;
    height: 16px;
    border: 2px solid var(--border);
    border-radius: 50%;
    position: relative;
    flex-shrink: 0;
    transition: var(--transition);
}
.consult-type-item:has(input:checked) .consult-type-radio {
    border-color: var(--primary);
}
.consult-type-item:has(input:checked) .consult-type-radio::after {
    content: '';
    position: absolute;
    top: 2px;
    left: 2px;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--primary);
}
.form-textarea {
    width: 100%;
    padding: 10px 14px;
    border: 2px solid var(--border);
    border-radius: var(--radius);
    font-size: 14px;
    font-family: inherit;
    resize: vertical;
    transition: var(--transition);
    outline: none;
}
.form-textarea:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(79,70,229,0.1);
}
.consult-agreement {
    margin-top: 4px;
}
.consult-agreement-label {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: var(--text-secondary);
    cursor: pointer;
}
.consult-agreement-label input[type="checkbox"] {
    display: none;
}
.consult-checkbox {
    width: 16px;
    height: 16px;
    border: 2px solid var(--border);
    border-radius: 4px;
    position: relative;
    flex-shrink: 0;
    transition: var(--transition);
}
.consult-agreement-label:has(input:checked) .consult-checkbox {
    background: var(--primary);
    border-color: var(--primary);
}
.consult-agreement-label:has(input:checked) .consult-checkbox::after {
    content: '✓';
    position: absolute;
    top: -1px;
    left: 2px;
    font-size: 11px;
    color: white;
    font-weight: bold;
}
.consult-submit-btn {
    margin-top: 4px;
}
.consult-tip {
    text-align: center;
    font-size: 13px;
    color: var(--text-muted);
    margin-top: 4px;
}
.required {
    color: var(--danger);
}

/* 留言成功弹窗 */
.success-modal {
    max-width: 420px;
    text-align: center;
}
.success-icon {
    font-size: 56px;
    margin-bottom: 12px;
}
.success-info {
    display: flex;
    justify-content: center;
    gap: 32px;
    margin: 20px 0;
    padding: 16px;
    background: var(--bg-secondary);
    border-radius: var(--radius);
}
.success-info-item {
    display: flex;
    flex-direction: column;
    gap: 4px;
}
.success-info-label {
    font-size: 12px;
    color: var(--text-muted);
}
.success-info-value {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-primary);
}
.success-actions {
    display: flex;
    gap: 12px;
    justify-content: center;
    margin-top: 20px;
}

/* 提交按钮加载状态 */
.consult-submit-btn.loading {
    opacity: 0.7;
    pointer-events: none;
}
.consult-submit-btn.loading::after {
    content: '';
    display: inline-block;
    width: 16px;
    height: 16px;
    border: 2px solid rgba(255,255,255,0.3);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
    margin-left: 8px;
    vertical-align: middle;
}
@keyframes spin {
    to { transform: rotate(360deg); }
}