/* ===== 来用科技官网 - 苹果极简设计风格 ===== */
:root {
    --primary: #1a1a2e;
    --accent: #0053F9;
    --accent-light: #4C88FF;
    --bg: #ffffff;
    --bg-secondary: #f8f9fc;
    --bg-dark: #0f0f1a;
    --text: #1a1a2e;
    --text-secondary: #6b7280;
    --text-light: #9ca3af;
    --border: #e5e7eb;
    --success: #10b981;
    --danger: #ef4444;
    --warning: #f59e0b;
    --radius: 16px;
    --radius-sm: 8px;
    --shadow: 0 1px 3px rgba(0,0,0,0.08);
    --shadow-lg: 0 20px 60px rgba(0,0,0,0.12);
    --transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    --max-width: 1200px;
}

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

html { scroll-behavior: smooth; }

body {
    font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    color: var(--text);
    background: var(--bg);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

/* ===== 导航栏 ===== */
.navbar {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 1000;
    background: rgba(255,255,255,0.85);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border-bottom: 1px solid rgba(0,0,0,0.05);
    transition: var(--transition);
}

.navbar.scrolled {
    background: rgba(255,255,255,0.95);
    box-shadow: 0 1px 20px rgba(0,0,0,0.06);
}

.nav-container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 56px;
}

.logo {
    font-size: 20px;
    font-weight: 700;
    color: var(--primary);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 8px;
    letter-spacing: -0.5px;
}

.logo-icon {
    height: 32px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 14px;
    font-weight: 800;
}
.logo-icon img {
    width: auto;
    height: 17px;
}

.nav-links {
    display: flex;
    gap: 32px;
    list-style: none;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-secondary);
    font-size: 14px;
    font-weight: 500;
    transition: var(--transition);
    position: relative;
}

.nav-links a:hover, .nav-links a.active {
    color: var(--accent);
}

.nav-links a.active::after {
    content: '';
    position: absolute;
    bottom: -18px;
    left: 50%;
    transform: translateX(-50%);
    width: 4px; height: 4px;
    background: var(--accent);
    border-radius: 50%;
}

.nav-cta {
    display: flex;
    gap: 12px;
}

/* ===== 按钮系统 ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 24px;
    border-radius: 100px;
    font-size: 14px;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    border: none;
    transition: var(--transition);
    outline: none;
    white-space: nowrap;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent), var(--accent-light));
    color: white;
    box-shadow: 0 4px 20px rgb(0, 83, 249, 0.2);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgb(0, 83, 249, 0.2);
}

.btn-secondary {
    background: transparent;
    color: var(--text);
    border: 1.5px solid var(--border);
}

.btn-secondary:hover {
    border-color: var(--accent);
    color: var(--accent);
    background: rgba(79, 70, 229, 0.04);
}

.btn-ghost {
    background: rgba(255,255,255,0.1);
    color: white;
    border: 1px solid rgba(255,255,255,0.2);
    backdrop-filter: blur(10px);
}

.btn-ghost:hover {
    background: rgba(255,255,255,0.2);
}

.btn-lg {
    padding: 14px 32px;
    font-size: 16px;
}

/* ===== 页面区块 ===== */
.section {
    padding: 120px 24px;
    max-width: var(--max-width);
    margin: 0 auto;
}

.section-dark {
    background: var(--bg-dark);
    color: white;
    max-width: 100%;
    padding: 120px 24px;
}

.section-dark .section-inner {
    max-width: var(--max-width);
    margin: 0 auto;
}

.section-title {
    font-size: 48px;
    font-weight: 700;
    letter-spacing: -1.5px;
    line-height: 1.1;
    margin-bottom: 16px;
}

.section-subtitle {
    font-size: 20px;
    color: var(--text-secondary);
    max-width: 600px;
    margin-bottom: 48px;
}

.section-dark .section-subtitle {
    color: rgba(255,255,255,0.6);
}

/* ===== 首屏英雄区 ===== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 56px;
    position: relative;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    z-index: 0;
    background: 
        radial-gradient(ellipse at 20% 50%, rgba(79, 70, 229, 0.08) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 20%, rgba(99, 102, 241, 0.06) 0%, transparent 50%),
        radial-gradient(ellipse at 50% 100%, rgba(79, 70, 229, 0.04) 0%, transparent 50%);
}

.hero-content {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 24px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
    position: relative;
    z-index: 1;
    width: 100%;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 16px;
    background: rgba(79, 70, 229, 0.08);
    border: 1px solid rgba(79, 70, 229, 0.15);
    border-radius: 100px;
    font-size: 13px;
    color: var(--accent);
    font-weight: 600;
    margin-bottom: 24px;
    animation: fadeInUp 0.6s ease;
}

.hero-title {
    font-size: 56px;
    font-weight: 800;
    letter-spacing: -2px;
    line-height: 1.1;
    margin-bottom: 20px;
    animation: fadeInUp 0.6s ease 0.1s both;
}

.hero-title .gradient-text {
    background: linear-gradient(135deg, var(--accent), var(--accent-light), #8b5cf6);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-desc {
    font-size: 18px;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 40px;
    animation: fadeInUp 0.6s ease 0.2s both;
}

.hero-actions {
    display: flex;
    gap: 16px;
    animation: fadeInUp 0.6s ease 0.3s both;
    flex-wrap: wrap;
}

.hero-visual {
    position: relative;
    animation: fadeInUp 0.8s ease 0.4s both;
}

/* AI对话模拟器 */
.ai-chat-sim {
    background: white;
    border-radius: 24px;
    box-shadow: var(--shadow-lg);
    padding: 24px;
    max-width: 420px;
    margin-left: auto;
    border: 1px solid var(--border);
}

.chat-header {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 20px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--border);
}

.chat-avatar {
    width: 36px; height: 36px;
    background: linear-gradient(135deg, var(--accent), var(--accent-light));
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 16px;
}

.chat-name {
    font-weight: 600;
    font-size: 15px;
}

.chat-status {
    font-size: 12px;
    color: var(--text-light);
}

.chat-bubble {
    padding: 14px 18px;
    border-radius: 18px;
    margin-bottom: 12px;
    font-size: 14px;
    line-height: 1.6;
    max-width: 85%;
    animation: messageIn 0.5s ease both;
    opacity: 0;
}

.chat-bubble.user {
    background: var(--bg-secondary);
    color: var(--text);
    margin-left: auto;
    border-bottom-right-radius: 4px;
    animation-delay: 0.5s;
}

.chat-bubble.ai {
    background: linear-gradient(135deg, var(--accent), var(--accent-light));
    color: white;
    margin-right: auto;
    border-bottom-left-radius: 4px;
    animation-delay: 1.5s;
}

.chat-bubble.result {
    background: linear-gradient(135deg, #10b981, #34d399);
    color: white;
    margin-right: auto;
    border-bottom-left-radius: 4px;
    animation-delay: 2.5s;
    display: flex;
    align-items: center;
    gap: 10px;
}

.chat-arrow {
    text-align: center;
    color: var(--text-light);
    font-size: 18px;
    margin: 8px 0;
    animation: bounce 2s infinite;
}

/* ===== 数字展示 ===== */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 32px;
    margin-top: 60px;
}

.stat-card {
    text-align: center;
    padding: 32px 24px;
    border-radius: var(--radius);
    background: white;
    border: 1px solid var(--border);
    transition: var(--transition);
}

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

.stat-number {
    font-size: 40px;
    font-weight: 800;
    background: linear-gradient(135deg, var(--accent), var(--accent-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -1px;
    line-height: 1;
    margin-bottom: 8px;
}

.stat-label {
    font-size: 14px;
    color: var(--text-secondary);
    font-weight: 500;
}

/* ===== 卡片系统 ===== */
.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
}

.card {
    background: white;
    border-radius: var(--radius);
    padding: 32px;
    border: 1px solid var(--border);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--accent), var(--accent-light));
    transform: scaleX(0);
    transition: var(--transition);
}

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

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

.card-icon {
    width: 48px; height: 48px;
    border-radius: 12px;
    background: linear-gradient(135deg, rgba(79,70,229,0.1), rgba(99,102,241,0.1));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    margin-bottom: 20px;
}

.card-title {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 10px;
}

.card-desc {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* 危机卡片 */
.crisis-card {
    background: white;
    border-radius: var(--radius);
    padding: 28px;
    border: 1px solid var(--border);
    display: flex;
    align-items: flex-start;
    gap: 16px;
    transition: var(--transition);
}

.crisis-card:hover {
    border-color: var(--danger);
    box-shadow: 0 4px 20px rgba(239, 68, 68, 0.1);
}

.crisis-icon {
    width: 40px; height: 40px;
    border-radius: 10px;
    background: rgba(239, 68, 68, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    flex-shrink: 0;
}

/* ===== 解决方案卡片 ===== */
.solution-card {
    background: white;
    border-radius: var(--radius);
    padding: 40px 32px;
    border: 1px solid var(--border);
    text-align: center;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.solution-card::after {
    content: '';
    position: absolute;
    bottom: 0; left: 0; right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--accent), var(--accent-light));
    transform: scaleX(0);
    transition: var(--transition);
}

.solution-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
}

.solution-card:hover::after {
    transform: scaleX(1);
}

.solution-icon {
    width: 64px; height: 64px;
    border-radius: 16px;
    background: linear-gradient(135deg, var(--accent), var(--accent-light));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    margin: 0 auto 24px;
    color: white;
}

.solution-title {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 12px;
}

.solution-desc {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* ===== 漏斗图 ===== */
.funnel-container {
    display: flex;
    flex-direction: column;
    gap: 16px;
    max-width: 600px;
    margin: 0 auto;
}

.funnel-step {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 20px 28px;
    background: white;
    border-radius: var(--radius);
    border: 1px solid var(--border);
    transition: var(--transition);
    position: relative;
    width: 100%;
}


.funnel-step:hover {
    border-color: var(--accent);
    box-shadow: var(--shadow-lg);
}

.funnel-num {
    width: 36px; height: 36px;
    border-radius: 10px;
    background: linear-gradient(135deg, var(--accent), var(--accent-light));
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 14px;
    flex-shrink: 0;
}

.funnel-text {
    font-weight: 600;
    font-size: 16px;
}

.funnel-arrow {
    text-align: center;
    color: var(--accent);
    font-size: 20px;
    margin: -8px 0;
    position: relative;
    z-index: 1;
}

/* ===== 案例表格 ===== */
.case-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 40px;
}

.case-table th, .case-table td {
    padding: 20px 24px;
    text-align: left;
    border-bottom: 1px solid var(--border);
}

.case-table th {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    background: var(--bg-secondary);
}

.case-table td {
    font-size: 15px;
}

.case-table tr:hover td {
    background: var(--bg-secondary);
}

.case-badge {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 100px;
    font-size: 12px;
    font-weight: 600;
}

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

/* ===== 服务流程 ===== */
.process-flow {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 48px;
}

.process-step {
    padding: 14px 24px;
    background: white;
    border: 1.5px solid var(--border);
    border-radius: 100px;
    font-size: 14px;
    font-weight: 600;
    transition: var(--transition);
    white-space: nowrap;
}

.process-step:hover {
    border-color: var(--accent);
    background: rgba(79, 70, 229, 0.04);
    color: var(--accent);
}

.process-arrow {
    color: var(--accent);
    font-size: 18px;
}

/* ===== 底部转化区 ===== */
.footer-cta {
    background: linear-gradient(135deg, var(--bg-dark), #1a1a3e);
    color: white;
    padding: 80px 24px;
    text-align: center;
}

.footer-cta-inner {
    max-width: var(--max-width);
    margin: 0 auto;
}

.footer-cta-title {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 16px;
    letter-spacing: -1px;
}

.footer-cta-desc {
    font-size: 18px;
    color: rgba(255,255,255,0.6);
    margin-bottom: 32px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* ===== 页脚 ===== */
.footer {
    background: #0a0a14;
    color: rgba(255,255,255,0.6);
    padding: 60px 24px 30px;
}

.footer-inner {
    max-width: var(--max-width);
    margin: 0 auto;
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 48px;
    margin-bottom: 48px;
}

.footer-brand {
    font-size: 20px;
    font-weight: 700;
    color: white;
    margin-bottom: 12px;
    display: flex;
    align-items: center;
}

.footer-desc {
    font-size: 14px;
    line-height: 1.7;
    margin-bottom: 20px;
}

.footer-col-title {
    font-size: 14px;
    font-weight: 600;
    color: white;
    margin-bottom: 20px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

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

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

.footer-links a {
    color: rgba(255,255,255,0.5);
    text-decoration: none;
    font-size: 14px;
    transition: var(--transition);
}

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

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.08);
    padding-top: 24px;
    text-align: center;
    font-size: 13px;
    color: rgba(255,255,255,0.3);
}

/* ===== 模态框 ===== */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.5);
    backdrop-filter: blur(8px);
    z-index: 2000;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 24px;
}

.modal-overlay.active {
    display: flex;
}

.modal {
    background: white;
    border-radius: 24px;
    padding: 40px;
    max-width: 480px;
    width: 100%;
    box-shadow: var(--shadow-lg);
    animation: modalIn 0.3s ease;
}

.modal-title {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 8px;
}

.modal-desc {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 28px;
}

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

.form-label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text);
}

.form-input {
    width: 100%;
    padding: 12px 16px;
    border: 1.5px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: 15px;
    font-family: inherit;
    transition: var(--transition);
    outline: none;
}

.form-input:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
}

.modal-close {
    position: absolute;
    top: 20px; right: 20px;
    width: 36px; height: 36px;
    border-radius: 50%;
    border: none;
    background: var(--bg-secondary);
    cursor: pointer;
    font-size: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.modal-close:hover {
    background: var(--border);
}

/* ===== 二维码弹窗 ===== */
.qr-modal .modal {
    text-align: center;
    max-width: 360px;
}

.qr-placeholder {
    width: 200px; height: 200px;
    background: var(--bg-secondary);
    border-radius: var(--radius);
    margin: 0 auto 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 80px;
    border: 2px dashed var(--border);
}

.qr-placeholder img {
    width: 100%;
    height: 100%;
}

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

@keyframes messageIn {
    from { opacity: 0; transform: translateY(10px) scale(0.95); }
    to { opacity: 1; transform: translateY(0) scale(1); }
}

@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-6px); }
}

@keyframes modalIn {
    from { opacity: 0; transform: scale(0.9) translateY(20px); }
    to { opacity: 1; transform: scale(1) translateY(0); }
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

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

/* 滚动显示 */
.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ===== 工作流卡片 ===== */
.workflow-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

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

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

.workflow-icon {
    width: 52px; height: 52px;
    border-radius: 14px;
    background: linear-gradient(135deg, rgba(79,70,229,0.1), rgba(99,102,241,0.1));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    margin: 0 auto 16px;
}

.workflow-title {
    font-size: 15px;
    font-weight: 600;
}

/* ===== AI工具卡片 ===== */
.ai-tool-card {
    background: white;
    border-radius: var(--radius);
    padding: 24px;
    border: 1px solid var(--border);
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 16px;
}

.ai-tool-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow);
    border-color: var(--accent);
}

.ai-tool-icon {
    width: 48px; height: 48px;
    border-radius: 12px;
    background: var(--bg-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    flex-shrink: 0;
}

.ai-tool-info h4 {
    font-size: 15px;
    font-weight: 600;
    margin-bottom: 4px;
}

.ai-tool-info p {
    font-size: 13px;
    color: var(--text-secondary);
}

/* ===== 合作模式 ===== */
.coop-card {
    background: white;
    border-radius: var(--radius);
    padding: 32px;
    border: 1px solid var(--border);
    text-align: center;
    transition: var(--transition);
}

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

.coop-icon {
    width: 56px; height: 56px;
    border-radius: 16px;
    background: linear-gradient(135deg, var(--accent), var(--accent-light));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    color: white;
    margin: 0 auto 20px;
}

/* ===== 联系信息 ===== */
.contact-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

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

.contact-card:hover {
    border-color: var(--accent);
    box-shadow: var(--shadow);
}

.contact-icon {
    width: 56px; height: 56px;
    border-radius: 16px;
    background: linear-gradient(135deg, rgba(79,70,229,0.1), rgba(99,102,241,0.1));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    margin: 0 auto 16px;
}

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
    .hero-content { grid-template-columns: 1fr; gap: 48px; }
    .hero-visual { order: -1; }
    .ai-chat-sim { margin: 0 auto; }
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
    .workflow-grid { grid-template-columns: repeat(2, 1fr); }
    .footer-inner { grid-template-columns: 1fr 1fr; }
    .contact-grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
    .nav-links { display: none; }
    .section { padding: 80px 20px; }
    .section-title { font-size: 32px; }
    .hero-title { font-size: 36px; }
    .stats-grid { grid-template-columns: 1fr; }
    .card-grid { grid-template-columns: 1fr !important; }
    .workflow-grid { grid-template-columns: 1fr; }
    .footer-inner { grid-template-columns: 1fr; gap: 32px; }
    .process-flow { flex-direction: column; align-items: stretch; }
    .process-arrow { transform: rotate(90deg); }
    .contact-grid { grid-template-columns: 1fr; }
    .funnel-step { width: 100% !important; }
}

/* ===== 移动端菜单 ===== */
.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    font-size: 24px;
    cursor: pointer;
    color: var(--text);
}

@media (max-width: 768px) {
    .mobile-menu-btn { display: block; }
    .nav-cta { display: none; }
}

/* ===== 粒子背景 ===== */
.particles {
    position: absolute;
    inset: 0;
    overflow: hidden;
    pointer-events: none;
}

.particle {
    position: absolute;
    width: 4px; height: 4px;
    background: var(--accent);
    border-radius: 50%;
    opacity: 0.3;
    animation: float 6s ease-in-out infinite;
}

/* ===== 标签系统 ===== */
.tag {
    display: inline-flex;
    align-items: center;
    padding: 4px 12px;
    border-radius: 100px;
    font-size: 12px;
    font-weight: 600;
    background: var(--bg-secondary);
    color: var(--text-secondary);
    border: 1px solid var(--border);
}

/* ===== 分割线 ===== */
.divider {
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--border), transparent);
    margin: 80px 0;
}

/* ===== 高亮文字 ===== */
.highlight {
    background: linear-gradient(135deg, var(--accent), var(--accent-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 700;
}

/* ===== 引用块 ===== */
.quote-block {
    border-left: 3px solid var(--accent);
    padding-left: 24px;
    font-size: 18px;
    font-style: italic;
    color: var(--text-secondary);
    margin: 32px 0;
}

/* ===== 列表样式 ===== */
.feature-list {
    list-style: none;
}

.feature-list li {
    padding: 12px 0;
    padding-left: 32px;
    position: relative;
    font-size: 15px;
}

.feature-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--success);
    font-weight: 700;
}

/* ===== 数据展示大数字 ===== */
.big-number {
    font-size: 64px;
    font-weight: 800;
    background: linear-gradient(135deg, var(--accent), var(--accent-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    letter-spacing: -2px;
}

/* ===== 网格布局工具 ===== */
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 32px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px; }
.grid-5 { display: grid; grid-template-columns: repeat(5, 1fr); gap: 24px; }

@media (max-width: 1024px) {
    .grid-4 { grid-template-columns: repeat(2, 1fr); }
    .grid-5 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
    .grid-2, .grid-3, .grid-4, .grid-5 { grid-template-columns: 1fr; }
}

/* ===== 文本对齐 ===== */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

/* ===== 间距工具 ===== */
.mt-8 { margin-top: 8px; }
.mt-16 { margin-top: 16px; }
.mt-24 { margin-top: 24px; }
.mt-32 { margin-top: 32px; }
.mt-48 { margin-top: 48px; }
.mt-64 { margin-top: 64px; }

.mb-8 { margin-bottom: 8px; }
.mb-16 { margin-bottom: 16px; }
.mb-24 { margin-bottom: 24px; }
.mb-32 { margin-bottom: 32px; }
.mb-48 { margin-bottom: 48px; }

/* ===== 宽度限制 ===== */
.max-w-md { max-width: 480px; margin-left: auto; margin-right: auto; }
.max-w-lg { max-width: 640px; margin-left: auto; margin-right: auto; }
.max-w-xl { max-width: 800px; margin-left: auto; margin-right: auto; }

/* ===== 深色区块特殊样式 ===== */
.dark-card {
    background: rgba(255,255,255,0.03);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: var(--radius);
    padding: 32px;
    transition: var(--transition);
}

.dark-card:hover {
    background: rgba(255,255,255,0.06);
    border-color: rgba(255,255,255,0.15);
}

/* ===== 进度条 ===== */
.progress-bar {
    height: 6px;
    background: var(--bg-secondary);
    border-radius: 3px;
    overflow: hidden;
    margin-top: 8px;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--accent), var(--accent-light));
    border-radius: 3px;
    transition: width 1.5s ease;
}

/* ===== 警示框 ===== */
.alert {
    padding: 16px 20px;
    border-radius: var(--radius-sm);
    border: 1px solid;
    font-size: 14px;
}

.alert-warning {
    background: rgba(245, 158, 11, 0.08);
    border-color: rgba(245, 158, 11, 0.2);
    color: #b45309;
}

/* ===== 时间线 ===== */
.timeline {
    position: relative;
    padding-left: 32px;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 8px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--border);
}

.timeline-item {
    position: relative;
    padding-bottom: 32px;
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: -28px;
    top: 4px;
    width: 12px; height: 12px;
    border-radius: 50%;
    background: var(--accent);
    border: 3px solid white;
    box-shadow: 0 0 0 2px var(--accent);
}

/* ===== 合作伙伴Logo区域 ===== */
.partner-logos {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 48px;
    flex-wrap: wrap;
    opacity: 0.4;
    filter: grayscale(100%);
}

.partner-logo {
    font-size: 20px;
    font-weight: 700;
    color: var(--text);
}