/* ==================== Reset & Base ==================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Brand Colors - 紫蓝渐变科技感 */
    --primary: #0a0a0f;
    --primary-2: #13131c;
    --surface: #1a1a24;
    --surface-2: #232333;
    --border: rgba(255, 255, 255, 0.08);
    --border-bright: rgba(255, 255, 255, 0.16);

    /* Accent - 紫罗兰 to 电光蓝 */
    --accent: #8b5cf6;
    --accent-2: #6366f1;
    --accent-3: #3b82f6;
    --accent-4: #06b6d4;

    /* Gradient */
    --gradient-1: linear-gradient(135deg, #8b5cf6 0%, #6366f1 50%, #3b82f6 100%);
    --gradient-2: linear-gradient(135deg, #f472b6 0%, #8b5cf6 100%);
    --gradient-glow: radial-gradient(circle, rgba(139, 92, 246, 0.4) 0%, transparent 70%);

    /* Text */
    --text-1: #ffffff;
    --text-2: rgba(255, 255, 255, 0.72);
    --text-3: rgba(255, 255, 255, 0.5);
    --text-4: rgba(255, 255, 255, 0.32);

    /* Light theme tokens */
    --bg-light: #fafafa;
    --card-light: #ffffff;

    /* Layout */
    --max-width: 1280px;
    --content-width: 1080px;
    --nav-height: 72px;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Inter", "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    background: var(--primary);
    color: var(--text-1);
    line-height: 1.6;
    overflow-x: hidden;
}

a {
    color: inherit;
    text-decoration: none;
    transition: color 0.2s ease;
}

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

/* ==================== Navigation ==================== */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--nav-height);
    z-index: 1000;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    background: rgba(10, 10, 15, 0.7);
    border-bottom: 1px solid var(--border);
}

.nav-inner {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 24px;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 20px;
    font-weight: 700;
    letter-spacing: -0.3px;
}

.nav-logo .logo-mark {
    width: 28px;
    height: 28px;
    border-radius: 8px;
    background: var(--gradient-1);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    font-weight: 800;
    color: white;
    box-shadow: 0 4px 12px rgba(139, 92, 246, 0.4);
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 36px;
}

.nav-menu a {
    font-size: 14px;
    color: var(--text-2);
    font-weight: 500;
    transition: color 0.2s ease;
    position: relative;
}

.nav-menu a:hover,
.nav-menu a.active {
    color: var(--text-1);
}

.nav-menu a.active::after {
    content: '';
    position: absolute;
    bottom: -22px;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--gradient-1);
    border-radius: 2px;
}

.nav-cta {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 9px 18px;
    background: var(--gradient-1);
    color: white;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.nav-cta:hover {
    transform: translateY(-1px);
    box-shadow: 0 8px 20px rgba(139, 92, 246, 0.4);
}

.nav-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--text-1);
    font-size: 24px;
    cursor: pointer;
}

/* ==================== Hero ==================== */
.hero {
    position: relative;
    padding: calc(var(--nav-height) + 100px) 24px 120px;
    text-align: center;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    pointer-events: none;
    z-index: 0;
}

.hero-bg::before {
    content: '';
    position: absolute;
    top: -200px;
    left: 50%;
    transform: translateX(-50%);
    width: 1200px;
    height: 1200px;
    background: var(--gradient-glow);
    filter: blur(80px);
    opacity: 0.5;
    animation: float 20s ease-in-out infinite;
}

.hero-bg::after {
    content: '';
    position: absolute;
    bottom: -300px;
    right: -200px;
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, rgba(59, 130, 246, 0.25) 0%, transparent 70%);
    filter: blur(60px);
    animation: float 25s ease-in-out infinite reverse;
}

@keyframes float {
    0%, 100% { transform: translate(-50%, 0) scale(1); }
    50% { transform: translate(-50%, -50px) scale(1.05); }
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 920px;
    margin: 0 auto;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 16px;
    background: rgba(139, 92, 246, 0.1);
    border: 1px solid rgba(139, 92, 246, 0.25);
    border-radius: 100px;
    font-size: 13px;
    color: #c4b5fd;
    margin-bottom: 40px;
    backdrop-filter: blur(10px);
    letter-spacing: 0.3px;
}

.hero-badge .dot {
    width: 6px;
    height: 6px;
    background: #a78bfa;
    border-radius: 50%;
    box-shadow: 0 0 10px #a78bfa;
    animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.4; }
}

.hero h1 {
    font-size: clamp(44px, 7vw, 88px);
    line-height: 1.05;
    font-weight: 800;
    letter-spacing: -2.5px;
    margin-bottom: 28px;
}

.hero h1 .gradient-text {
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-tagline {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    font-size: clamp(15px, 1.4vw, 18px);
    font-weight: 500;
    color: var(--text-2);
    margin-bottom: 32px;
    letter-spacing: 1px;
}

.hero-tagline::before,
.hero-tagline::after {
    content: '';
    width: 32px;
    height: 1px;
    background: var(--border-bright);
}

.hero p.lead {
    font-size: clamp(15px, 1.3vw, 17px);
    color: var(--text-3);
    max-width: 860px;
    margin: 0 auto 32px;
    line-height: 1.8;
    font-weight: 400;
    white-space: nowrap;
}

.hero-typewriter {
    font-size: clamp(20px, 2.5vw, 28px);
    font-weight: 700;
    color: var(--text-1);
    margin-bottom: 40px;
    letter-spacing: -0.5px;
}

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

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 28px;
    border-radius: 10px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    border: none;
    transition: all 0.2s ease;
    white-space: nowrap;
}

.btn-primary {
    background: var(--gradient-1);
    color: white;
    box-shadow: 0 8px 24px rgba(139, 92, 246, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 32px rgba(139, 92, 246, 0.5);
}

.btn-ghost {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-1);
    border: 1px solid var(--border-bright);
    backdrop-filter: blur(10px);
}

.btn-ghost:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.24);
}

.btn-arrow {
    display: inline-block;
    transition: transform 0.2s ease;
}

.btn:hover .btn-arrow {
    transform: translateX(4px);
}

/* ==================== Section ==================== */
.section {
    padding: 100px 24px;
    position: relative;
}

.section-light {
    background: linear-gradient(180deg, var(--primary) 0%, var(--primary-2) 100%);
}

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

.section-header {
    text-align: center;
    max-width: 720px;
    margin: 0 auto 64px;
}

.section-tag {
    display: inline-block;
    padding: 4px 14px;
    background: rgba(139, 92, 246, 0.1);
    color: #c4b5fd;
    border-radius: 100px;
    font-size: 13px;
    font-weight: 500;
    margin-bottom: 16px;
    border: 1px solid rgba(139, 92, 246, 0.2);
}

.section-title {
    font-size: clamp(32px, 4vw, 48px);
    font-weight: 700;
    letter-spacing: -1px;
    line-height: 1.2;
    margin-bottom: 16px;
}

.section-desc {
    font-size: 18px;
    color: var(--text-2);
    line-height: 1.7;
}

/* ==================== Stats ==================== */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0;
    max-width: 980px;
    margin: 0 auto;
    border: 1px solid var(--border);
    border-radius: 20px;
    overflow: hidden;
}

.stat {
    text-align: center;
    padding: 40px 20px;
    border-right: 1px solid var(--border);
    background: var(--primary);
}

.stat:last-child {
    border-right: none;
}

.stat-num {
    font-size: 48px;
    font-weight: 800;
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    margin-bottom: 12px;
    letter-spacing: -2px;
}

.stat-label {
    font-size: 14px;
    color: var(--text-2);
}

/* ==================== Feature Cards ==================== */
.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1px;
    background: var(--border);
    border: 1px solid var(--border);
    border-radius: 20px;
    overflow: hidden;
}

.features-grid.cols-2 {
    grid-template-columns: repeat(2, 1fr);
}

.features-grid.cols-4 {
    grid-template-columns: repeat(4, 1fr);
}

.feature-card {
    background: var(--primary);
    padding: 48px 40px;
    position: relative;
    overflow: hidden;
    transition: background 0.3s ease;
    border: none;
    border-radius: 0;
}

.feature-card:hover {
    background: var(--surface);
}

.feature-card::before {
    display: none;
}

.feature-num {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-3);
    letter-spacing: 2px;
    margin-bottom: 24px;
    font-feature-settings: "tnum";
    display: block;
}

.feature-num .gradient-text {
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.feature-icon {
    display: none;
}

.feature-card h3 {
    font-size: 22px;
    font-weight: 600;
    margin-bottom: 14px;
    letter-spacing: -0.4px;
    color: var(--text-1);
}

.feature-card p {
    color: var(--text-2);
    font-size: 15px;
    line-height: 1.75;
}

.feature-card .accent-line {
    display: block;
    width: 32px;
    height: 2px;
    background: var(--gradient-1);
    margin-bottom: 20px;
    border-radius: 2px;
    opacity: 0.7;
}

.compare-card {
    text-align: left;
}

.compare-card .compare-old {
    font-size: 28px;
    font-weight: 700;
    color: var(--text-3);
    text-decoration: line-through;
    text-decoration-thickness: 2px;
    margin-bottom: 4px;
    line-height: 1.2;
}

.compare-card .compare-new {
    font-size: 56px;
    font-weight: 800;
    line-height: 1;
    margin-bottom: 20px;
    letter-spacing: -2px;
}

.compare-card p {
    color: var(--text-2);
    font-size: 14px;
    line-height: 1.7;
}

/* 案例卡片 - 可点击 */
a.case-card {
    display: block;
    text-decoration: none;
    color: inherit;
    cursor: pointer;
    position: relative;
}

a.case-card:hover {
    background: var(--surface);
}

a.case-card .case-link {
    display: block;
    margin-top: 20px;
    padding-top: 16px;
    border-top: 1px solid var(--border);
    font-size: 13px;
    color: #c4b5fd;
    font-weight: 500;
    letter-spacing: 0.3px;
    transition: color 0.2s ease;
}

a.case-card:hover .case-link {
    color: #ddd6fe;
}

a.case-card.case-card-more {
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.08), rgba(99, 102, 241, 0.04));
}

a.case-card.case-card-more:hover {
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.14), rgba(99, 102, 241, 0.08));
}

/* ==================== Partner Cards ==================== */
.partner-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.partner-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 48px 40px;
    position: relative;
    overflow: hidden;
    transition: transform 0.3s ease, border-color 0.3s ease;
}

.partner-card:hover {
    transform: translateY(-4px);
    border-color: var(--accent);
}

.partner-card.featured {
    background: linear-gradient(180deg, rgba(139, 92, 246, 0.1) 0%, var(--surface) 100%);
    border-color: rgba(139, 92, 246, 0.3);
}

.partner-card .tag {
    display: inline-block;
    padding: 4px 12px;
    background: rgba(139, 92, 246, 0.15);
    color: #c4b5fd;
    border-radius: 100px;
    font-size: 12px;
    font-weight: 600;
    margin-bottom: 16px;
    border: 1px solid rgba(139, 92, 246, 0.3);
}

.partner-card h3 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 12px;
    letter-spacing: -0.5px;
}

.partner-card .desc {
    color: var(--text-2);
    margin-bottom: 24px;
    font-size: 15px;
    line-height: 1.7;
}

.partner-card ul {
    list-style: none;
}

.partner-card ul li {
    padding: 10px 0;
    padding-left: 28px;
    position: relative;
    font-size: 14px;
    color: var(--text-2);
    border-bottom: 1px solid var(--border);
}

.partner-card ul li:last-child {
    border-bottom: none;
}

.partner-card ul li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 18px;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--gradient-1);
    background-size: cover;
    box-shadow: 0 0 8px rgba(139, 92, 246, 0.4);
}

.partner-card ul li::after {
    content: '✓';
    position: absolute;
    left: 4px;
    top: 13px;
    color: white;
    font-size: 11px;
    font-weight: 700;
}

.partner-card ul li strong {
    color: var(--text-1);
    font-weight: 600;
}

/* ==================== Pricing ==================== */
.pricing-card {
    max-width: 720px;
    margin: 0 auto;
    background: linear-gradient(180deg, var(--surface) 0%, var(--surface-2) 100%);
    border: 1px solid var(--border-bright);
    border-radius: 24px;
    overflow: hidden;
}

.pricing-header {
    padding: 40px;
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.2) 0%, rgba(59, 130, 246, 0.1) 100%);
    border-bottom: 1px solid var(--border);
}

.pricing-header h3 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 8px;
}

.pricing-header p {
    color: var(--text-2);
    font-size: 15px;
}

.pricing-body {
    padding: 32px 40px;
}

.pricing-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0;
    border-bottom: 1px solid var(--border);
}

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

.pricing-item {
    color: var(--text-2);
    font-size: 15px;
}

.pricing-item strong {
    color: var(--text-1);
    font-weight: 600;
    display: block;
    margin-bottom: 2px;
}

.pricing-price {
    font-size: 22px;
    font-weight: 700;
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -0.3px;
}

.pricing-note {
    margin: 24px 40px 40px;
    padding: 16px 20px;
    background: rgba(245, 158, 11, 0.1);
    border: 1px solid rgba(245, 158, 11, 0.2);
    border-radius: 12px;
    font-size: 14px;
    color: #fbbf24;
    line-height: 1.6;
}

/* ==================== Process ==================== */
.process-list {
    max-width: 800px;
    margin: 0 auto;
    counter-reset: step;
}

.process-step {
    display: flex;
    gap: 28px;
    padding: 32px 0;
    border-bottom: 1px solid var(--border);
    counter-increment: step;
}

.process-step:last-child {
    border-bottom: none;
}

.process-step::before {
    content: counter(step, decimal-leading-zero);
    width: 56px;
    height: 56px;
    min-width: 56px;
    border-radius: 12px;
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.15), rgba(99, 102, 241, 0.05));
    border: 1px solid rgba(139, 92, 246, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    font-weight: 700;
    color: #c4b5fd;
    font-feature-settings: "tnum";
}

.process-content h4 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 8px;
    letter-spacing: -0.3px;
}

.process-content p {
    color: var(--text-2);
    line-height: 1.7;
    font-size: 15px;
}

/* ==================== Ecosystem ==================== */
.eco-flow {
    max-width: 1000px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr auto 1fr auto 1fr;
    gap: 24px;
    align-items: center;
}

.eco-node {
    background: linear-gradient(180deg, var(--surface) 0%, var(--surface-2) 100%);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 48px 28px;
    text-align: center;
    transition: transform 0.3s ease, border-color 0.3s ease;
}

.eco-node:hover {
    transform: translateY(-4px);
    border-color: var(--accent);
}

.eco-node .node-num {
    display: inline-block;
    font-size: 14px;
    font-weight: 700;
    color: var(--text-3);
    letter-spacing: 3px;
    margin-bottom: 20px;
    font-feature-settings: "tnum";
}

.eco-node .node-num span {
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.eco-node h4 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 12px;
    letter-spacing: -0.5px;
}

.eco-node .role {
    display: inline-block;
    padding: 4px 12px;
    background: rgba(139, 92, 246, 0.1);
    color: #c4b5fd;
    border-radius: 100px;
    font-size: 12px;
    margin-bottom: 16px;
    border: 1px solid rgba(139, 92, 246, 0.2);
}

.eco-node p {
    color: var(--text-2);
    font-size: 14px;
    line-height: 1.7;
}

.eco-arrow {
    font-size: 32px;
    color: var(--accent);
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100%;
}

/* ==================== CTA Banner ==================== */
.cta-banner {
    position: relative;
    padding: 80px 40px;
    background: linear-gradient(135deg, var(--surface) 0%, var(--surface-2) 100%);
    border: 1px solid var(--border-bright);
    border-radius: 24px;
    text-align: center;
    overflow: hidden;
    max-width: var(--content-width);
    margin: 0 auto;
}

.cta-banner::before {
    content: '';
    position: absolute;
    top: -200px;
    left: 50%;
    transform: translateX(-50%);
    width: 800px;
    height: 800px;
    background: var(--gradient-glow);
    filter: blur(80px);
    opacity: 0.4;
    pointer-events: none;
}

.cta-banner > * {
    position: relative;
    z-index: 1;
}

.cta-banner h2 {
    font-size: clamp(28px, 4vw, 42px);
    font-weight: 700;
    letter-spacing: -1px;
    margin-bottom: 16px;
}

.cta-banner p {
    color: var(--text-2);
    font-size: 17px;
    max-width: 600px;
    margin: 0 auto 32px;
    line-height: 1.7;
}

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

.cta-contact {
    margin-top: 32px;
    padding-top: 32px;
    border-top: 1px solid var(--border);
    display: flex;
    gap: 32px;
    justify-content: center;
    flex-wrap: wrap;
}

.cta-contact-item {
    text-align: left;
}

.cta-contact-label {
    font-size: 12px;
    color: var(--text-3);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 4px;
}

.cta-contact-value {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-1);
}

/* ==================== Footer ==================== */
footer {
    padding: 60px 24px 32px;
    background: var(--primary-2);
    border-top: 1px solid var(--border);
}

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

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 60px;
    margin-bottom: 48px;
}

.footer-brand .nav-logo {
    margin-bottom: 16px;
}

.footer-brand p {
    color: var(--text-2);
    font-size: 14px;
    line-height: 1.7;
    max-width: 320px;
}

.footer-col h5 {
    font-size: 13px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-3);
    margin-bottom: 20px;
}

.footer-col ul {
    list-style: none;
}

.footer-col ul li {
    padding: 6px 0;
}

.footer-col ul li a {
    color: var(--text-2);
    font-size: 14px;
    transition: color 0.2s ease;
}

.footer-col ul li a:hover {
    color: var(--text-1);
}

.footer-bottom {
    padding-top: 32px;
    border-top: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
    color: var(--text-3);
    font-size: 13px;
}

/* ==================== Page Headers ==================== */
.page-header {
    padding: calc(var(--nav-height) + 80px) 24px 60px;
    text-align: center;
    position: relative;
    overflow: hidden;
    border-bottom: 1px solid var(--border);
}

.page-header::before {
    content: '';
    position: absolute;
    top: -200px;
    left: 50%;
    transform: translateX(-50%);
    width: 800px;
    height: 600px;
    background: var(--gradient-glow);
    filter: blur(80px);
    opacity: 0.3;
    pointer-events: none;
}

.page-header > * {
    position: relative;
    z-index: 1;
}

.page-header h1 {
    font-size: clamp(36px, 5vw, 56px);
    font-weight: 800;
    letter-spacing: -1.5px;
    margin-bottom: 16px;
}

.page-header p {
    color: var(--text-2);
    font-size: 18px;
    max-width: 720px;
    margin: 0 auto;
}

/* ==================== About Page ==================== */
.about-mission {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 24px;
    padding: 60px 48px;
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
}

.about-mission h2 {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 24px;
    letter-spacing: -0.5px;
}

.about-mission p {
    color: var(--text-2);
    font-size: 17px;
    line-height: 1.8;
}

.values-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1px;
    background: var(--border);
    border: 1px solid var(--border);
    border-radius: 20px;
    overflow: hidden;
}

/* ==================== Contact Page ==================== */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    max-width: 1080px;
    margin: 0 auto;
}

.contact-info-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 40px;
}

.contact-info-card h3 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 24px;
}

.contact-row {
    padding: 20px 0;
    border-bottom: 1px solid var(--border);
}

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

.contact-label {
    font-size: 13px;
    color: var(--text-3);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 6px;
}

.contact-value {
    font-size: 18px;
    font-weight: 600;
}

.contact-value a {
    color: var(--accent);
}

/* ==================== Responsive ==================== */
@media (max-width: 968px) {
    .nav-menu {
        display: none;
        position: absolute;
        top: var(--nav-height);
        left: 0;
        right: 0;
        background: var(--primary);
        border-bottom: 1px solid var(--border);
        flex-direction: column;
        padding: 24px;
        gap: 20px;
    }

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

    .nav-menu a.active::after {
        display: none;
    }

    .nav-toggle {
        display: block;
    }

    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 32px;
    }

    .eco-flow {
        grid-template-columns: 1fr;
    }

    .eco-arrow {
        transform: rotate(90deg);
    }

    .contact-grid {
        grid-template-columns: 1fr;
    }

    .features-grid,
    .features-grid.cols-4,
    .partner-grid,
    .values-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .hero p.lead {
        white-space: normal;
        max-width: 100%;
    }

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

    .stat:nth-child(2n) {
        border-right: none;
    }

    .stat:nth-child(-n+2) {
        border-bottom: 1px solid var(--border);
    }
}

@media (max-width: 640px) {
    .section {
        padding: 60px 20px;
    }

    .hero {
        padding: calc(var(--nav-height) + 60px) 20px 60px;
    }

    .mockup-wrap {
        transform: none;
    }

    .mockup-section {
        padding-top: 20px;
        padding-bottom: 40px;
    }

    .flow-img-wrap {
        padding: 24px 12px;
        overflow-x: auto;
    }

    .flow-img {
        min-width: 800px;
    }

    .hero-actions {
        flex-direction: column;
    }

    .hero-actions .btn {
        width: 100%;
        justify-content: center;
    }

    .footer-grid {
        grid-template-columns: 1fr;
    }

    .feature-card {
        padding: 36px 28px;
    }

    .partner-card,
    .pricing-body {
        padding: 32px 24px;
    }

    .pricing-note {
        margin: 16px 24px 24px;
    }

    .process-step {
        gap: 16px;
    }

    .cta-banner {
        padding: 48px 24px;
    }

    .features-grid,
    .features-grid.cols-2,
    .features-grid.cols-4,
    .partner-grid,
    .values-grid {
        grid-template-columns: 1fr;
    }

    .stats-grid {
        grid-template-columns: 1fr;
    }

    .stat {
        border-right: none;
        border-bottom: 1px solid var(--border);
    }

    .stat:last-child {
        border-bottom: none;
    }
}

/* ==================== Animations ==================== */

/* 产品 mockup 区 */
.mockup-section {
    padding: 40px 24px 80px;
    position: relative;
}

.mockup-wrap {
    max-width: 1200px;
    margin: 0 auto;
    position: relative;
    border-radius: 18px;
    overflow: hidden;
    box-shadow: 0 30px 80px rgba(0, 0, 0, 0.5),
                0 0 60px rgba(139, 92, 246, 0.15);
    border: 1px solid var(--border-bright);
    transform: perspective(1600px) rotateX(2deg);
}

.mockup-img {
    display: block;
    width: 100%;
    height: auto;
}

.mockup-glow {
    position: absolute;
    inset: -1px;
    border-radius: 18px;
    background: linear-gradient(135deg, rgba(139,92,246,0.5), rgba(59,130,246,0.5));
    z-index: -1;
    opacity: 0.4;
    filter: blur(40px);
    pointer-events: none;
}

/* 流程图区 */
.flow-section {
    padding: 80px 24px;
}

.flow-img-wrap {
    max-width: 1200px;
    margin: 0 auto;
    background: linear-gradient(180deg, var(--surface) 0%, var(--surface-2) 100%);
    border: 1px solid var(--border);
    border-radius: 18px;
    padding: 40px 24px;
    position: relative;
    overflow: hidden;
}

.flow-img-wrap::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 50% 50%, rgba(139,92,246,0.08), transparent 70%);
    pointer-events: none;
}

.flow-img {
    display: block;
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    height: auto;
    position: relative;
    z-index: 1;
}

/* 架构图区 */
.arch-img-wrap {
    max-width: 1200px;
    margin: 0 auto;
    position: relative;
}

.arch-img {
    display: block;
    width: 100%;
    height: auto;
}

.fade-in {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.7s cubic-bezier(0.16, 1, 0.3, 1),
                transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}

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

/* 流程步骤入场 */
.process-step {
    opacity: 0;
    transform: translateX(-20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.process-step.step-visible {
    opacity: 1;
    transform: translateX(0);
}

/* 光标光晕 */
.cursor-glow {
    position: fixed;
    top: 0;
    left: 0;
    width: 400px;
    height: 400px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(139, 92, 246, 0.06) 0%, transparent 70%);
    pointer-events: none;
    z-index: 0;
    transition: none;
    will-change: transform;
}

/* 卡片倾斜过渡 */
.feature-card,
.partner-card,
.eco-node {
    transition: background 0.3s ease,
                border-color 0.3s ease,
                transform 0.15s ease;
    will-change: transform;
}

/* Hero canvas */
#hero-canvas {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    pointer-events: auto;
    z-index: 0;
}

/* 打字机光标 */
#typewriter {
    border-right: 2px solid #a78bfa;
    padding-right: 2px;
    animation: blink 1s step-end infinite;
}

@keyframes blink {
    0%, 100% { border-color: #a78bfa; }
    50% { border-color: transparent; }
}

/* 渐变描边卡片 hover */
.feature-card:hover::after {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: inherit;
    padding: 1px;
    background: linear-gradient(135deg, rgba(139,92,246,0.4), rgba(59,130,246,0.2));
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    pointer-events: none;
}

/* 数字高亮闪烁 */
@keyframes stat-pop {
    0% { transform: scale(1); }
    50% { transform: scale(1.08); }
    100% { transform: scale(1); }
}

.stat-num.popped {
    animation: stat-pop 0.4s ease;
}

/* 流程连线 */
.process-list {
    position: relative;
}

.process-list::before {
    content: '';
    position: absolute;
    left: 27px;
    top: 28px;
    bottom: 28px;
    width: 1px;
    background: linear-gradient(180deg, var(--accent) 0%, transparent 100%);
    opacity: 0.3;
}

/* 生态箭头动效 */
.eco-arrow {
    animation: arrow-pulse 2s ease-in-out infinite;
}

@keyframes arrow-pulse {
    0%, 100% { opacity: 0.6; transform: scale(1); }
    50% { opacity: 1; transform: scale(1.2); }
}

/* section-light 微纹理 */
.section-light {
    background: linear-gradient(180deg, var(--primary) 0%, var(--primary-2) 100%);
    position: relative;
}

.section-light::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image: radial-gradient(circle at 1px 1px, rgba(255,255,255,0.03) 1px, transparent 0);
    background-size: 32px 32px;
    pointer-events: none;
}

/* ==================== Utility ==================== */
.text-center { text-align: center; }
.gradient-text {
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}