/* ========================================
   即刻GEO - 极客级GEO优化服务
   暗黑赛博朋克风格
   ======================================== */

/* --- 变量 --- */
:root {
    --bg-primary: #0a0a0f;
    --bg-secondary: #111118;
    --bg-card: #16161f;
    --bg-card-hover: #1c1c28;
    --text-primary: #e8e8f0;
    --text-secondary: #9090a8;
    --accent-primary: #6c5ce7;
    --accent-secondary: #00d2ff;
    --accent-tertiary: #ff6b9d;
    --gradient-1: linear-gradient(135deg, #6c5ce7, #00d2ff);
    --gradient-2: linear-gradient(135deg, #ff6b9d, #6c5ce7);
    --gradient-3: linear-gradient(135deg, #00d2ff, #6c5ce7, #ff6b9d);
    --border-color: rgba(108, 92, 231, 0.15);
    --glow-primary: 0 0 30px rgba(108, 92, 231, 0.3);
    --glow-secondary: 0 0 30px rgba(0, 210, 255, 0.3);
    --radius: 16px;
    --radius-sm: 10px;
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* --- 基础重置 --- */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    scrollbar-width: thin;
    scrollbar-color: var(--accent-primary) var(--bg-secondary);
}

::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg-primary); }
::-webkit-scrollbar-thumb { background: var(--accent-primary); border-radius: 3px; }

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    overflow-anchor: none;
}

a { text-decoration: none; color: inherit; }
ul { list-style: none; }
img { max-width: 100%; }

/* --- 粒子画布 --- */
#particleCanvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    pointer-events: none;
}

/* --- 导航栏 --- */
.navbar {
    position: fixed;
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
    width: 90%;
    max-width: 1300px;
    z-index: 1000;
    transition: var(--transition);
}

.navbar.scrolled {
    top: 0;
    width: 100%;
    max-width: 100%;
    background: rgba(10, 10, 15, 0.85);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
    border-radius: 0;
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 15px 30px;
    background: rgba(22, 22, 31, 0.75);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border-color);
    border-radius: 50px;
    transition: var(--transition);
}

.navbar.scrolled .nav-container {
    border-radius: 0;
    border: none;
    border-bottom: 1px solid var(--border-color);
    background: rgba(10, 10, 15, 0.85);
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.4rem;
    font-weight: 800;
}

.logo-icon {
    width: 38px;
    height: 38px;
    background: var(--gradient-1);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    color: #fff;
}

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

.nav-menu {
    display: flex;
    gap: 8px;
}

.nav-link {
    padding: 8px 18px;
    border-radius: 25px;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
    transition: var(--transition);
    position: relative;
}

.nav-link:hover,
.nav-link.active {
    color: #fff;
    background: rgba(108, 92, 231, 0.15);
}

.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 5px;
}

.hamburger span {
    width: 25px;
    height: 2px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: var(--transition);
}

/* --- 按钮 --- */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 28px;
    border-radius: 50px;
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    position: relative;
    overflow: hidden;
}

.btn-sm { padding: 8px 20px; font-size: 0.85rem; }
.btn-lg { padding: 16px 36px; font-size: 1.05rem; }
.btn-block { width: 100%; justify-content: center; }

.btn-primary {
    background: var(--gradient-1);
    color: #fff;
    box-shadow: var(--glow-primary);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 40px rgba(108, 92, 231, 0.5);
}

.btn-outline {
    background: transparent;
    color: var(--text-primary);
    border: 1px solid rgba(108, 92, 231, 0.3);
}

.btn-outline:hover {
    background: rgba(108, 92, 231, 0.1);
    border-color: var(--accent-primary);
    transform: translateY(-2px);
}

.btn-glow {
    background: var(--gradient-1);
    color: #fff;
    box-shadow: var(--glow-primary);
    animation: btnPulse 2s infinite;
}

@keyframes btnPulse {
    0%, 100% { box-shadow: 0 0 20px rgba(108, 92, 231, 0.3); }
    50% { box-shadow: 0 0 35px rgba(108, 92, 231, 0.6); }
}

/* --- Hero --- */
.hero {
    position: relative;
    z-index: 1;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 120px 5% 80px;
    overflow: hidden;
}

.hero-grid {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image:
        linear-gradient(rgba(108, 92, 231, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(108, 92, 231, 0.03) 1px, transparent 1px);
    background-size: 60px 60px;
    mask-image: radial-gradient(ellipse 80% 80% at 50% 50%, black 30%, transparent 70%);
    -webkit-mask-image: radial-gradient(ellipse 80% 80% at 50% 50%, black 30%, transparent 70%);
}

.hero-content {
    max-width: 650px;
    z-index: 2;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 20px;
    background: rgba(108, 92, 231, 0.1);
    border: 1px solid rgba(108, 92, 231, 0.25);
    border-radius: 50px;
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 24px;
}

.pulse-dot {
    width: 8px;
    height: 8px;
    background: var(--accent-secondary);
    border-radius: 50%;
    animation: pulseDot 1.5s infinite;
}

@keyframes pulseDot {
    0%, 100% { opacity: 1; box-shadow: 0 0 4px var(--accent-secondary); }
    50% { opacity: 0.4; box-shadow: 0 0 12px var(--accent-secondary); }
}

.hero-title {
    font-size: 3.8rem;
    font-weight: 900;
    line-height: 1.15;
    margin-bottom: 20px;
    letter-spacing: -0.02em;
}

.gradient-text {
    background: var(--gradient-3);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    background-size: 200% auto;
    animation: gradientShift 3s ease infinite;
}

@keyframes gradientShift {
    0%, 100% { background-position: 0% center; }
    50% { background-position: 100% center; }
}

.hero-subtitle {
    font-size: 1.15rem;
    color: var(--text-secondary);
    margin-bottom: 36px;
    line-height: 1.7;
    max-width: 540px;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    margin-bottom: 50px;
}

.hero-stats {
    display: flex;
    align-items: center;
    gap: 30px;
}

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

.stat-number, .stat-plus, .stat-percent {
    font-size: 2rem;
    font-weight: 800;
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-plus, .stat-percent {
    font-size: 1.2rem;
}

.stat-label {
    display: block;
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-top: 4px;
}

.stat-divider {
    width: 1px;
    height: 40px;
    background: var(--border-color);
}

/* Hero Visual */
.hero-visual {
    position: relative;
    width: 500px;
    height: 500px;
    z-index: 2;
    display: flex;
    align-items: center;
    justify-content: center;
}

.orbit-ring {
    position: absolute;
    border: 1px solid rgba(108, 92, 231, 0.15);
    border-radius: 50%;
    animation: orbitRotate 20s linear infinite;
}

.ring-1 { width: 350px; height: 350px; }
.ring-2 {
    width: 420px; height: 420px;
    animation-duration: 25s;
    animation-direction: reverse;
    border-color: rgba(0, 210, 255, 0.12);
}
.ring-3 {
    width: 280px; height: 280px;
    animation-duration: 15s;
    border-color: rgba(255, 107, 157, 0.1);
}

@keyframes orbitRotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.globe-core {
    width: 120px;
    height: 120px;
    background: var(--gradient-1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    color: #fff;
    box-shadow: 0 0 60px rgba(108, 92, 231, 0.4);
    animation: globeFloat 3s ease-in-out infinite;
}

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

.floating-card {
    position: absolute;
    background: rgba(22, 22, 31, 0.85);
    backdrop-filter: blur(15px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 12px 18px;
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.9rem;
    font-weight: 600;
    box-shadow: 0 10px 30px rgba(0,0,0,0.3);
    animation: floatCard 4s ease-in-out infinite;
}

.floating-card i { font-size: 1.1rem; }
.card-1 { top: 8%; right: 5%; color: var(--accent-secondary); animation-delay: 0s; }
.card-2 { bottom: 20%; left: 0; color: var(--accent-tertiary); animation-delay: 1.5s; }
.card-3 { top: 45%; right: -5%; color: var(--accent-primary); animation-delay: 3s; }

@keyframes floatCard {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-15px); }
}

/* --- 通用区块 --- */
section {
    position: relative;
    z-index: 1;
    padding: 100px 5%;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-tag {
    display: inline-block;
    padding: 6px 18px;
    background: rgba(108, 92, 231, 0.1);
    border: 1px solid rgba(108, 92, 231, 0.2);
    border-radius: 50px;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--accent-primary);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 16px;
}

.section-title {
    font-size: 2.6rem;
    font-weight: 800;
    margin-bottom: 16px;
    line-height: 1.2;
}

.section-desc {
    font-size: 1.05rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* --- 服务卡片 --- */
.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    max-width: 1300px;
    margin: 0 auto;
}

.service-card {
    position: relative;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 35px 30px;
    transition: var(--transition);
    overflow: hidden;
}

.card-glow {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 50% 0%, rgba(108, 92, 231, 0.08), transparent 70%);
    opacity: 0;
    transition: opacity 0.4s;
}

.service-card:hover {
    transform: translateY(-8px);
    border-color: rgba(108, 92, 231, 0.4);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.4), 0 0 30px rgba(108, 92, 231, 0.1);
}

.service-card:hover .card-glow { opacity: 1; }

.service-icon {
    width: 55px;
    height: 55px;
    background: var(--gradient-1);
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
    color: #fff;
    margin-bottom: 20px;
    position: relative;
    z-index: 1;
}

.service-card h3 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 12px;
    position: relative;
    z-index: 1;
}

.service-card > p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.6;
    margin-bottom: 20px;
    position: relative;
    z-index: 1;
}

.service-features {
    position: relative;
    z-index: 1;
}

.service-features li {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.85rem;
    color: var(--text-secondary);
    padding: 6px 0;
}

.service-features li i {
    color: var(--accent-secondary);
    font-size: 0.85rem;
}

/* --- 特性/优势 --- */
.features-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    max-width: 1300px;
    margin: 0 auto;
    align-items: center;
}

/* Dashboard */
.feature-dashboard {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: 0 20px 60px rgba(0,0,0,0.3);
}

.dashboard-header {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 20px;
    background: rgba(0,0,0,0.3);
    border-bottom: 1px solid var(--border-color);
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.dashboard-dots {
    display: flex;
    gap: 6px;
}

.dashboard-dots span {
    width: 10px; height: 10px;
    border-radius: 50%;
}

.dashboard-dots span:nth-child(1) { background: #ff5f57; }
.dashboard-dots span:nth-child(2) { background: #febc2e; }
.dashboard-dots span:nth-child(3) { background: #28c840; }

.dashboard-chart {
    padding: 30px 20px 10px;
}

.chart-bars {
    display: flex;
    align-items: flex-end;
    justify-content: space-around;
    gap: 8px;
    height: 180px;
    padding: 0 10px;
}

.chart-bar {
    flex: 1;
    background: var(--gradient-1);
    border-radius: 6px 6px 0 0;
    position: relative;
    min-width: 30px;
    opacity: 0.85;
    transition: var(--transition);
    animation: barGrow 1s ease-out;
}

.chart-bar:hover { opacity: 1; transform: scaleY(1.05); transform-origin: bottom; }
.chart-bar.highlight { background: var(--gradient-2); }

.chart-bar span {
    position: absolute;
    bottom: -24px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 0.7rem;
    color: var(--text-secondary);
    font-weight: 600;
}

@keyframes barGrow {
    from { transform: scaleY(0); transform-origin: bottom; }
    to { transform: scaleY(1); transform-origin: bottom; }
}

.dashboard-stats {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    padding: 30px 20px 20px;
}

.dash-stat {
    background: rgba(108, 92, 231, 0.08);
    border-radius: var(--radius-sm);
    padding: 16px;
    text-align: center;
}

.dash-num {
    display: block;
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--accent-secondary);
}

.dash-label {
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-top: 4px;
}

/* Feature Items */
.features-list {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.feature-item {
    display: flex;
    gap: 20px;
    padding: 20px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    transition: var(--transition);
}

.feature-item:hover {
    border-color: rgba(108, 92, 231, 0.4);
    transform: translateX(8px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.3);
}

.feature-icon {
    width: 50px;
    height: 50px;
    min-width: 50px;
    background: rgba(108, 92, 231, 0.12);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    color: var(--accent-primary);
}

.feature-text h4 {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 6px;
}

.feature-text p {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

/* --- 流程 --- */
.process-steps {
    display: flex;
    align-items: flex-start;
    justify-content: center;
    gap: 0;
    max-width: 1300px;
    margin: 0 auto;
    flex-wrap: nowrap;
    overflow-x: auto;
    -ms-overflow-style: none;
    scrollbar-width: none;
}

.process-steps::-webkit-scrollbar { display: none; }

.step-card {
    text-align: center;
    padding: 30px 12px;
    position: relative;
    flex: 0 0 170px;
    min-width: 140px;
}

.step-number {
    position: absolute;
    top: 10px;
    right: 20px;
    font-size: 3rem;
    font-weight: 900;
    color: rgba(108, 92, 231, 0.06);
    line-height: 1;
}

.step-icon {
    width: 70px;
    height: 70px;
    margin: 0 auto 20px;
    background: var(--gradient-1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: #fff;
    box-shadow: var(--glow-primary);
    transition: var(--transition);
}

.step-card:hover .step-icon {
    transform: scale(1.1);
    box-shadow: 0 0 40px rgba(108, 92, 231, 0.5);
}

.step-card h3 {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 10px;
}

.step-card p {
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

.step-connector {
    display: flex;
    align-items: center;
    padding-top: 55px;
}

.connector-line {
    width: 40px;
    height: 2px;
    background: var(--gradient-1);
}

.connector-arrow {
    color: var(--accent-primary);
    font-size: 0.8rem;
}

/* --- 定价 --- */
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    max-width: 1100px;
    margin: 0 auto;
}

.pricing-card {
    position: relative;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 40px 30px;
    transition: var(--transition);
    overflow: hidden;
}

.pricing-card:hover {
    transform: translateY(-8px);
    border-color: rgba(108, 92, 231, 0.3);
}

.pricing-card.popular {
    border-color: var(--accent-primary);
    box-shadow: 0 0 30px rgba(108, 92, 231, 0.15);
    transform: scale(1.03);
}

.pricing-card.popular:hover {
    transform: scale(1.03) translateY(-8px);
}

.pricing-badge {
    position: absolute;
    top: 16px;
    right: 16px;
    padding: 5px 14px;
    background: rgba(108, 92, 231, 0.15);
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--accent-primary);
}

.popular-badge {
    background: var(--gradient-1);
    color: #fff;
}

.pricing-header h3 {
    font-size: 1.4rem;
    font-weight: 700;
    margin-bottom: 6px;
}

.pricing-header p {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.pricing-price {
    margin: 24px 0;
    display: flex;
    align-items: baseline;
}

.currency { font-size: 1.2rem; font-weight: 600; color: var(--text-secondary); }
.amount { font-size: 2.8rem; font-weight: 900; }
.period { font-size: 0.9rem; color: var(--text-secondary); margin-left: 4px; }

.pricing-features {
    margin-bottom: 30px;
}

.pricing-features li {
    padding: 10px 0;
    font-size: 0.9rem;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 10px;
    border-bottom: 1px solid rgba(255,255,255,0.03);
}

.pricing-features li i { font-size: 0.8rem; }
.pricing-features li i.fa-check { color: var(--accent-secondary); }
.pricing-features li.disabled { opacity: 0.35; }
.pricing-features li.disabled i { color: var(--text-secondary); }

/* --- 评价 --- */
.testimonials {
    background: var(--bg-secondary);
    overflow: hidden;
}

.testimonials-slider {
    max-width: 1100px;
    margin: 0 auto;
    overflow: hidden;
    padding: 20px 0;
    position: relative;
}

.testimonials-track {
    display: flex;
    gap: 24px;
    transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    will-change: transform;
}

.testimonial-card {
    min-width: 350px;
    flex: 0 0 350px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 30px;
    transition: var(--transition);
    opacity: 0.5;
    transform: scale(0.92);
}

.testimonial-card.active {
    opacity: 1;
    transform: scale(1);
    border-color: rgba(108, 92, 231, 0.4);
    box-shadow: 0 10px 30px rgba(0,0,0,0.3), 0 0 20px rgba(108, 92, 231, 0.1);
}

.testimonial-card:hover {
    border-color: rgba(108, 92, 231, 0.3);
    box-shadow: 0 10px 30px rgba(0,0,0,0.3);
}

.testimonial-quote {
    font-size: 2rem;
    color: var(--accent-primary);
    opacity: 0.3;
    margin-bottom: 16px;
}

.testimonial-text {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 20px;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 12px;
}

.author-avatar {
    width: 44px;
    height: 44px;
    background: var(--gradient-1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    font-weight: 700;
    color: #fff;
}

.testimonial-author strong {
    display: block;
    font-size: 0.9rem;
}

.testimonial-author span {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.slider-dots {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-top: 30px;
}

.slider-dot {
    width: 8px; height: 8px;
    border-radius: 50%;
    background: var(--border-color);
    cursor: pointer;
    transition: var(--transition);
}

.slider-dot.active {
    background: var(--accent-primary);
    width: 24px;
    border-radius: 4px;
}

/* --- 联系 --- */
.contact {
    position: relative;
    overflow: hidden;
}

.contact-bg-effect {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(108, 92, 231, 0.06), transparent 70%);
    pointer-events: none;
}

.contact-container {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 40px;
    max-width: 1000px;
    margin: 0 auto;
    position: relative;
    z-index: 2;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.contact-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 20px;
    transition: var(--transition);
}

.contact-card:hover {
    border-color: rgba(108, 92, 231, 0.3);
    transform: translateX(6px);
}

.contact-icon {
    width: 42px;
    height: 42px;
    background: rgba(108, 92, 231, 0.12);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    color: var(--accent-primary);
    margin-bottom: 12px;
}

.contact-card h4 {
    font-size: 0.9rem;
    font-weight: 700;
    margin-bottom: 4px;
}

.contact-card p {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.contact-socials {
    display: flex;
    gap: 12px;
    margin-top: 8px;
}

.contact-socials a {
    width: 40px;
    height: 40px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.95rem;
    color: var(--text-secondary);
    transition: var(--transition);
}

.contact-socials a:hover {
    color: #fff;
    border-color: var(--accent-primary);
    background: rgba(108, 92, 231, 0.15);
    transform: translateY(-3px);
}

.contact-form {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 35px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.form-group {
    margin-bottom: 18px;
}

.form-group label {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-secondary);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 0.9rem;
    font-family: inherit;
    transition: var(--transition);
    outline: none;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px rgba(108, 92, 231, 0.1);
}

.form-group select {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%239090a8' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 14px center;
    padding-right: 40px;
}

.form-group select option {
    background: var(--bg-card);
    color: var(--text-primary);
}

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

/* --- 页脚 --- */
.footer {
    position: relative;
    z-index: 1;
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    padding: 60px 5% 30px;
    overflow: hidden;
}

.footer-grid {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image:
        linear-gradient(rgba(108, 92, 231, 0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(108, 92, 231, 0.02) 1px, transparent 1px);
    background-size: 40px 40px;
    pointer-events: none;
}

.footer-container {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    max-width: 1300px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.footer-logo {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-size: 1.3rem;
    font-weight: 800;
    margin-bottom: 16px;
}

.footer-logo .logo-icon {
    width: 34px; height: 34px;
    font-size: 0.85rem;
}

.footer-brand p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.7;
    max-width: 280px;
}

.footer-col h4 {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 20px;
}

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

.footer-col ul li a {
    font-size: 0.9rem;
    color: var(--text-secondary);
    transition: var(--transition);
}

.footer-col ul li a:hover {
    color: var(--accent-primary);
    padding-left: 4px;
}

.footer-bottom {
    text-align: center;
    margin-top: 50px;
    padding-top: 24px;
    border-top: 1px solid var(--border-color);
    position: relative;
    z-index: 1;
}

.footer-bottom p {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

/* --- 动画 --- */
[data-aos] {
    opacity: 0;
    transition: opacity 0.6s ease, transform 0.6s ease;
}

[data-aos="fade-up"] { transform: translateY(40px); }
[data-aos="fade-left"] { transform: translateX(40px); }
[data-aos="zoom-in"] { transform: scale(0.9); }
[data-aos="flip-left"] { transform: perspective(1000px) rotateY(15deg); }

[data-aos].aos-animate {
    opacity: 1;
    transform: none;
}

/* --- 响应式 --- */
@media (max-width: 1200px) {
    .hero { flex-direction: column; text-align: center; padding-top: 140px; }
    .hero-content { max-width: 100%; }
    .hero-subtitle { max-width: 100%; }
    .hero-buttons { justify-content: center; }
    .hero-stats { justify-content: center; }
    .hero-visual { width: 350px; height: 350px; margin-top: 40px; }
    .hero-title { font-size: 2.8rem; }
    .services-grid { grid-template-columns: repeat(2, 1fr); }
    .features-container { grid-template-columns: 1fr; }
    .pricing-grid { grid-template-columns: 1fr; max-width: 500px; }
    .pricing-card.popular { transform: none; }
    .pricing-card.popular:hover { transform: translateY(-8px); }
    .contact-container { grid-template-columns: 1fr; }
    .process-steps { flex-direction: column; align-items: center; }
    .step-connector { transform: rotate(90deg); padding: 10px 0; }
    .footer-container { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 0; right: -100%;
        width: 280px;
        height: 100vh;
        background: rgba(16, 16, 24, 0.98);
        backdrop-filter: blur(20px);
        flex-direction: column;
        padding: 80px 30px 30px;
        gap: 4px;
        transition: 0.4s ease;
        border-left: 1px solid var(--border-color);
    }
    .nav-menu.active { right: 0; }
    .nav-cta { display: none; }
    .hamburger { display: flex; z-index: 1001; }
    .hero-title { font-size: 2.2rem; }
    .section-title { font-size: 2rem; }
    .services-grid { grid-template-columns: 1fr; }
    .hero-visual { width: 280px; height: 280px; }
    .form-row { grid-template-columns: 1fr; }
    .testimonial-card { min-width: 280px; flex: 0 0 280px; }
    .hero-stats { gap: 16px; }
    .stat-number, .stat-plus, .stat-percent { font-size: 1.5rem; }
    .footer-container { grid-template-columns: 1fr; }
}