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

:root {
    --primary: #007bff;
    --primary-dark: #0056b3;
    --primary-light: #e6f2ff;
    --secondary: #6c757d;
    --success: #28a745;
    --warning: #ffc107;
    --danger: #dc3545;
    --dark: #1a1a2e;
    --dark-secondary: #16213e;
    --gray: #666;
    --gray-light: #999;
    --gray-lighter: #e0e0e0;
    --bg-light: #f8f9fa;
    --bg-white: #fff;
    --text-primary: #1a1a2e;
    --text-secondary: #666;
    --text-muted: #999;
    --border-color: #dee2e6;
    --shadow-sm: 0 2px 8px rgba(0,0,0,0.08);
    --shadow-md: 0 4px 16px rgba(0,0,0,0.1);
    --shadow-lg: 0 8px 32px rgba(0,0,0,0.12);
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --transition: all 0.3s ease;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'PingFang SC', 'Helvetica Neue', Helvetica, Arial, 'Microsoft YaHei', sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-primary);
    background: var(--bg-white);
    overflow-x: hidden;
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

ul {
    list-style: none;
}

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

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

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

.section-header.light {
    color: var(--bg-white);
}

.section-header.light h2 {
    color: var(--bg-white);
}

.section-header.light p {
    color: rgba(255,255,255,0.8);
}

.section-tag {
    display: inline-block;
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 2px;
    color: var(--primary);
    margin-bottom: 12px;
    text-transform: uppercase;
}

.section-header.light .section-tag {
    color: rgba(255,255,255,0.7);
}

.section-header h2 {
    font-size: 36px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 16px;
}

.section-header p {
    font-size: 16px;
    color: var(--text-secondary);
}

.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255,255,255,0.98);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    transition: var(--transition);
}

.header.scrolled {
    box-shadow: var(--shadow-sm);
}

.header .container {
    padding: 0 24px;
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 18px;
    font-weight: 700;
    color: var(--primary);
}

.logo img {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-sm);
}

.nav-menu {
    display: flex;
    gap: 40px;
}

.nav-menu a {
    font-size: 15px;
    color: var(--text-secondary);
    padding: 8px 0;
    position: relative;
}

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

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary);
    transition: var(--transition);
}

.nav-menu a:hover::after,
.nav-menu a.active::after {
    width: 100%;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 16px;
}

.btn-header {
    display: inline-flex;
    align-items: center;
    padding: 10px 24px;
    font-size: 14px;
    font-weight: 500;
    color: var(--bg-white);
    background: var(--primary);
    border-radius: var(--radius-md);
    transition: var(--transition);
}

.btn-header:hover {
    background: var(--primary-dark);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(0,123,255,0.3);
}

.menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 40px;
    height: 40px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.menu-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: var(--transition);
}

.menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

.menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

.hero {
    position: relative;
    padding: 140px 0 100px;
    background: linear-gradient(135deg, #0f1629 0%, #1a2744 50%, #243b5c 100%);
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

.hero-content {
    position: relative;
    display: flex;
    align-items: center;
    gap: 80px;
}

.hero-text {
    flex: 1;
}

.hero-tag {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    font-size: 13px;
    color: var(--primary);
    background: rgba(0,123,255,0.15);
    border-radius: 20px;
    margin-bottom: 24px;
}

.tag-dot {
    width: 6px;
    height: 6px;
    background: var(--primary);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

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

.hero h1 {
    font-size: 52px;
    font-weight: 800;
    color: #fff;
    margin-bottom: 16px;
    line-height: 1.2;
    letter-spacing: 2px;
}

.hero-subtitle {
    font-size: 20px;
    color: rgba(255,255,255,0.7);
    margin-bottom: 20px;
    font-weight: 400;
    letter-spacing: 4px;
}

.hero-desc {
    font-size: 16px;
    color: rgba(255,255,255,0.6);
    line-height: 1.8;
    margin-bottom: 32px;
    max-width: 500px;
}

.hero-btns {
    display: flex;
    gap: 16px;
    margin-bottom: 48px;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 32px;
    font-size: 15px;
    font-weight: 600;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: var(--transition);
    border: none;
}

.btn-primary {
    color: #fff;
    background: var(--primary);
}

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0,123,255,0.4);
}

.btn-ghost {
    color: #fff;
    background: transparent;
    border: 2px solid rgba(255,255,255,0.3);
}

.btn-ghost:hover {
    background: rgba(255,255,255,0.1);
    border-color: rgba(255,255,255,0.5);
}

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

.btn-outline:hover {
    color: #fff;
    background: var(--primary);
}

.btn-block {
    width: 100%;
}

.hero-stats {
    display: flex;
    gap: 48px;
}

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

.stat-num {
    display: block;
    font-size: 32px;
    font-weight: 700;
    color: var(--primary);
}

.stat-label {
    font-size: 13px;
    color: rgba(255,255,255,0.5);
}

.hero-visual {
    flex: 1;
    position: relative;
}

.hero-browser-frame {
    position: relative;
    background: #1a1a2e;
    border-radius: 12px;
    /* overflow: hidden; */
    box-shadow: 0 25px 80px rgba(0,0,0,0.5);
    border: 1px solid rgba(255,255,255,0.1);
}

.hero-browser-frame .browser-header {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 16px;
    background: #252542;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.hero-browser-frame .browser-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.hero-browser-frame .browser-dot.red {
    background: #ff5f57;
}

.hero-browser-frame .browser-dot.yellow {
    background: #febc2e;
}

.hero-browser-frame .browser-dot.green {
    background: #28c840;
}

.hero-browser-frame .browser-title {
    margin-left: 12px;
    font-size: 13px;
    color: rgba(255,255,255,0.6);
}

.hero-browser-frame .browser-screen {
    background: #fff;
    overflow: hidden;
}

.hero-browser-frame .browser-screen img {
    width: 100%;
    display: block;
}

.hero-phone-frame {
    position: absolute;
    bottom: -60px;
    left: -72px;
    width: 120px;
    background: linear-gradient(145deg, #2d2d44, #1a1a2e);
    border-radius: 22px;
    padding: 10px;
    box-shadow: 0 12px 40px rgba(0,0,0,0.4);
}

.hero-phone-frame .phone-notch {
    position: absolute;
    top: 10px;
    left: 50%;
    transform: translateX(-50%);
    width: 50px;
    height: 18px;
    background: #1a1a2e;
    border-radius: 0 0 12px 12px;
    z-index: 10;
}

.hero-phone-frame .phone-screen {
    background: #fff;
    border-radius: 16px;
    overflow: hidden;
    aspect-ratio: 9/19;
}

.hero-phone-frame .phone-screen img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: top;
    display: block;
}

.img-badge {
    position: absolute;
    top: 16px;
    right: 16px;
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 14px;
    font-size: 12px;
    color: #fff;
    background: rgba(0,0,0,0.6);
    backdrop-filter: blur(10px);
    border-radius: 20px;
}

.badge-dot {
    width: 6px;
    height: 6px;
    background: var(--success);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

.about {
    padding: 100px 0;
    background: var(--bg-white);
}

.about-content {
    display: flex;
    align-items: center;
    gap: 80px;
}

.about-visual {
    flex: 1;
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 40px;
}

.about-phone-frame {
    position: relative;
    width: 220px;
    background: linear-gradient(145deg, #2d2d44, #1a1a2e);
    border-radius: 36px;
    padding: 12px;
    box-shadow: 0 25px 60px rgba(0,0,0,0.2), 0 10px 20px rgba(0,0,0,0.15);
}

.about-phone-notch {
    position: absolute;
    top: 12px;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 24px;
    background: #1a1a2e;
    border-radius: 0 0 16px 16px;
    z-index: 10;
}

.about-phone-screen {
    background: #fff;
    border-radius: 24px;
    overflow: hidden;
}

.about-phone-screen img {
    width: 100%;
    display: block;
}

.about-float-card {
    position: absolute;
    bottom: 20px;
    right: 20px;
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 20px;
    background: var(--bg-white);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    animation: float 3s ease-in-out infinite;
}

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

.float-icon {
    font-size: 20px;
}

.float-text {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
}

.about-text {
    flex: 1;
}

.about-text h3 {
    font-size: 28px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 20px;
}

.about-text > p {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 32px;
}

.about-list li {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 0;
    font-size: 15px;
    color: var(--text-primary);
}

.list-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    font-size: 12px;
    color: var(--success);
    background: rgba(40,167,69,0.1);
    border-radius: 50%;
}

.features {
    padding: 100px 0;
    background: linear-gradient(180deg, #1a1a2e 0%, #16213e 100%);
}

.features .section-header h2,
.features .section-header p {
    color: #fff;
}

.features .section-tag {
    background: rgba(255,255,255,0.15);
    color: rgba(255,255,255,0.9);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.feature-card {
    padding: 32px 24px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 16px;
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.2);
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    border: 1px solid rgba(255, 255, 255, 0.1);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg, #4facfe 0%, #00f2fe 100%);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s ease;
}

.feature-card:hover {
    transform: translateY(-8px);
    background: rgba(255, 255, 255, 0.08);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.3);
    border-color: rgba(79, 172, 254, 0.3);
}

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

.feature-icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(79, 172, 254, 0.2) 0%, rgba(0, 242, 254, 0.15) 100%);
    border-radius: 12px;
    margin-bottom: 20px;
    transition: all 0.4s ease;
}

.feature-card:hover .feature-icon {
    background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    transform: scale(1.1);
}

.feature-icon svg {
    width: 26px;
    height: 26px;
    color: #4facfe;
    transition: color 0.4s ease;
}

.feature-card:hover .feature-icon svg {
    color: #1a1a2e;
}

.feature-card h3 {
    font-size: 18px;
    font-weight: 600;
    color: #fff;
    margin-bottom: 10px;
}

.feature-card p {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.7;
}

.products {
    padding: 100px 0;
    background: var(--bg-white);
}

.products-showcase {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 40px;
    align-items: start;
}

.product-main {
    display: flex;
    flex-direction: column;
}

.product-browser {
    background: #1a1a2e;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.browser-header {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 16px;
    background: #252542;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.browser-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: #ff5f57;
}

.browser-dot:nth-child(2) {
    background: #febc2e;
}

.browser-dot:nth-child(3) {
    background: #28c840;
}

.browser-title {
    margin-left: 12px;
    font-size: 13px;
    color: rgba(255,255,255,0.6);
}

.product-img-wrap {
    padding: 0;
    background: #1a1a2e;
    overflow: hidden;
}

.product-img-wrap img {
    width: 100%;
    display: block;
}

.product-info-main {
    margin-top: 20px;
    text-align: center;
}

.product-info-main h3 {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.product-info-main p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.6;
}

.product-side {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.product-phones {
    display: flex;
    align-items: flex-end;
    gap: 16px;
    justify-content: center;
}

.product-phone-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
}

.product-phone-item .phone-label {
    font-size: 13px;
    color: var(--text-secondary);
    font-weight: 500;
}

.product-phone {
    position: relative;
}

.phone-frame {
    width: 180px;
    background: linear-gradient(145deg, #2d2d44, #1a1a2e);
    border-radius: 28px;
    padding: 10px;
    box-shadow: 0 20px 50px rgba(0,0,0,0.25);
    position: relative;
}

.phone-frame.mini {
    width: 140px;
    border-radius: 24px;
    padding: 8px;
}

.phone-frame.mini .phone-notch {
    width: 50px;
    height: 14px;
    top: 8px;
}

.phone-frame.mini .phone-screen {
    border-radius: 16px;
}

.phone-notch {
    position: absolute;
    top: 10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 18px;
    background: #1a1a2e;
    border-radius: 0 0 10px 10px;
    z-index: 10;
}

.phone-screen {
    background: #fff;
    border-radius: 18px;
    overflow: hidden;
}

.phone-screen img {
    width: 100%;
    display: block;
}

.product-info-side {
    margin-top: 24px;
    text-align: center;
}

.product-info-side h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.product-info-side p {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.6;
}

.pricing {
    padding: 100px 0;
    background: linear-gradient(135deg, #0f1629 0%, #1a2744 100%);
}

.pricing-toggle {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 16px;
    margin-bottom: 48px;
}

.toggle-label {
    font-size: 15px;
    color: rgba(255,255,255,0.5);
    cursor: pointer;
    transition: var(--transition);
    padding: 8px 16px;
}

.toggle-label.active {
    color: #fff;
    background: rgba(255,255,255,0.1);
    border-radius: var(--radius-md);
}

.toggle-sep {
    color: rgba(255,255,255,0.2);
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
    max-width: 900px;
    margin: 0 auto;
}

.pricing-card {
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    position: relative;
    transition: var(--transition);
}

.pricing-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 50px rgba(0,0,0,0.3);
}

.pricing-card.recommended {
    border: 2px solid var(--primary);
}

.card-badge {
    position: absolute;
    top: 20px;
    right: 20px;
    padding: 6px 16px;
    font-size: 12px;
    font-weight: 600;
    color: #fff;
    background: var(--primary);
    border-radius: 20px;
}

.card-header {
    padding: 40px 32px 24px;
    text-align: center;
    border-bottom: 1px solid var(--border-color);
}

.card-header h3 {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 8px;
}

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

.card-features {
    padding: 32px;
}

.card-features ul {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 14px;
    color: var(--text-primary);
}

.check-icon {
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 11px;
    color: var(--success);
    background: rgba(40,167,69,0.1);
    border-radius: 50%;
    flex-shrink: 0;
}

.card-footer {
    padding: 24px 32px 32px;
    text-align: center;
}

.price-info {
    margin-bottom: 20px;
}

.price-label {
    display: block;
    font-size: 13px;
    color: var(--text-muted);
    margin-bottom: 4px;
}

.price-num {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-secondary);
}

.contact {
    padding: 100px 0;
    background: var(--bg-white);
}

.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: start;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 32px;
}

.info-item {
    display: flex;
    align-items: flex-start;
    gap: 20px;
}

.info-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary-light);
    border-radius: var(--radius-md);
    flex-shrink: 0;
}

.info-icon svg {
    width: 22px;
    height: 22px;
    color: var(--primary);
}

.info-text {
    display: flex;
    flex-direction: column;
    gap: 4px;
    padding-top: 4px;
}

.info-label {
    font-size: 13px;
    color: var(--text-muted);
}

.info-value {
    font-size: 15px;
    color: var(--text-primary);
    font-weight: 500;
}

.contact-form {
    background: var(--bg-light);
    padding: 40px;
    border-radius: var(--radius-lg);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

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

.form-group label {
    display: block;
    font-size: 14px;
    color: var(--text-primary);
    margin-bottom: 8px;
    font-weight: 500;
}

.required {
    color: var(--danger);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 14px 16px;
    font-size: 14px;
    color: var(--text-primary);
    background: var(--bg-white);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    transition: var(--transition);
    font-family: inherit;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(0,123,255,0.1);
}

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

.footer {
    background: var(--dark);
    color: rgba(255,255,255,0.8);
    padding: 60px 0 30px;
}

.footer-main {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    padding-bottom: 40px;
    border-bottom: 1px solid rgba(255,255,255,0.1);
    margin-bottom: 30px;
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: 16px;
}

.footer-brand img {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-sm);
}

.brand-text {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.brand-name {
    font-size: 16px;
    font-weight: 600;
    color: #fff;
}

.brand-slogan {
    font-size: 13px;
    color: rgba(255,255,255,0.5);
}

.footer-links {
    display: flex;
    gap: 80px;
}

.link-group h4 {
    font-size: 14px;
    font-weight: 600;
    color: #fff;
    margin-bottom: 20px;
}

.link-group ul {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.link-group a {
    font-size: 14px;
    color: rgba(255,255,255,0.6);
    transition: var(--transition);
}

.link-group a:hover {
    color: #fff;
}

.footer-bottom {
    text-align: center;
    font-size: 14px;
    color: rgba(255,255,255,0.4);
}

.footer-bottom p {
    margin-bottom: 8px;
}

.footer-bottom .icp {
    font-size: 12px;
}

/* 弹窗样式 */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.6);
    z-index: 1000;
    justify-content: center;
    align-items: center;
    backdrop-filter: blur(4px);
}

.modal.active {
    display: flex;
}

.modal-content {
    background: #fff;
    border-radius: 16px;
    width: 90%;
    max-width: 400px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    animation: modalSlideIn 0.3s ease;
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: translateY(-30px) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 24px;
    border-bottom: 1px solid #eee;
}

.modal-header h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
}

.modal-close {
    background: none;
    border: none;
    font-size: 28px;
    color: #999;
    cursor: pointer;
    line-height: 1;
    padding: 0;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: all 0.2s;
}

.modal-close:hover {
    background: #f5f5f5;
    color: #333;
}

.modal-body {
    padding: 24px;
}

/* 验证码弹窗 */
.captcha-tip {
    text-align: center;
    color: var(--text-secondary);
    font-size: 14px;
    margin-bottom: 20px;
}

.captcha-box {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 12px;
    margin-bottom: 20px;
}

#captchaCanvas {
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    cursor: pointer;
}

.captcha-refresh {
    width: 40px;
    height: 40px;
    border: 1px solid #ddd;
    background: #fff;
    border-radius: 8px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
}

.captcha-refresh:hover {
    background: #f5f5f5;
    border-color: var(--primary);
}

.captcha-refresh svg {
    width: 20px;
    height: 20px;
    color: var(--text-secondary);
}

.captcha-input {
    width: 100%;
    padding: 14px 16px;
    font-size: 16px;
    border: 2px solid #e0e0e0;
    border-radius: 10px;
    text-align: center;
    letter-spacing: 8px;
    margin-bottom: 12px;
    transition: all 0.2s;
}

.captcha-input:focus {
    outline: none;
    border-color: var(--primary);
}

.captcha-error {
    color: #dc3545;
    font-size: 13px;
    text-align: center;
    margin-bottom: 16px;
    min-height: 20px;
}

/* 二维码弹窗 */
.qr-modal {
    max-width: 320px;
}

.qr-body {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 20px 24px 30px;
}

.qr-image {
    width: 200px;
    height: 200px;
    border-radius: 12px;
    box-shadow: 0 4px 16px rgba(0,0,0,0.1);
    margin-bottom: 16px;
}

.qr-tip {
    color: var(--text-secondary);
    font-size: 14px;
    text-align: center;
}

@media (max-width: 1024px) {
    .hero-content {
        flex-direction: column;
        text-align: center;
        gap: 60px;
    }

    .hero-text {
        order: 1;
    }

    .hero-visual {
        order: 0;
        width: 100%;
        max-width: 600px;
    }

    .hero-phone-frame {
        width: 100px;
        bottom: -20px;
        left: -15px;
        padding: 8px;
        border-radius: 18px;
    }

    .hero-phone-frame .phone-notch {
        width: 40px;
        height: 14px;
        top: 8px;
    }

    .hero-desc {
        max-width: 100%;
    }

    .hero-btns {
        justify-content: center;
    }

    .hero-stats {
        justify-content: center;
    }

    .about-content {
        flex-direction: column;
        gap: 60px;
    }

    .products-showcase {
        grid-template-columns: 1fr;
        gap: 48px;
    }

    .product-side {
        flex-direction: row;
        align-items: center;
        gap: 32px;
    }

    .product-phones {
        flex-shrink: 0;
    }

    .phone-frame {
        width: 150px;
    }

    .phone-frame.mini {
        width: 120px;
    }

    .product-info-side {
        margin-top: 0;
        text-align: left;
    }

    .pricing-grid {
        grid-template-columns: 1fr;
        max-width: 500px;
    }

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

    .footer-main {
        flex-direction: column;
        gap: 40px;
    }

    .footer-links {
        gap: 40px;
        flex-wrap: wrap;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 72px;
        left: 0;
        right: 0;
        bottom: 0;
        flex-direction: column;
        gap: 0;
        background: var(--bg-white);
        padding: 20px;
        box-shadow: var(--shadow-lg);
        transform: translateX(-100%);
        transition: var(--transition);
        overflow-y: auto;
    }

    .nav-menu.active {
        transform: translateX(0);
    }

    .nav-menu li {
        border-bottom: 1px solid var(--border-color);
    }

    .nav-menu a {
        display: block;
        padding: 16px 0;
    }

    .header-actions {
        display: none;
    }

    .menu-toggle {
        display: flex;
    }

    .hero {
        padding: 120px 0 60px;
    }

    .hero h1 {
        font-size: 36px;
    }

    .hero-subtitle {
        font-size: 16px;
        letter-spacing: 2px;
    }

    .hero-stats {
        gap: 24px;
    }

    .stat-num {
        font-size: 24px;
    }

    .features-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }

    .feature-card {
        padding: 28px 24px;
    }

    .feature-icon {
        width: 56px;
        height: 56px;
    }

    .products-showcase {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .product-img {
        min-height: 200px;
        padding: 16px;
    }

    .section-header h2 {
        font-size: 28px;
    }

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

    .footer-links {
        flex-direction: column;
        gap: 30px;
    }
}

@media (max-width: 768px) {
    .features-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .feature-card {
        padding: 24px 20px;
    }

    .feature-icon {
        width: 52px;
        height: 52px;
        margin-bottom: 18px;
    }

    .feature-icon svg {
        width: 26px;
        height: 26px;
    }

    .feature-card h3 {
        font-size: 18px;
    }

    .feature-card p {
        font-size: 14px;
    }

    .feature-card:hover {
        transform: translateY(-6px) scale(1.01);
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }

    .hero h1 {
        font-size: 28px;
    }

    .hero-phone-frame {
        width: 80px;
        bottom: -15px;
        left: -8px;
        padding: 6px;
        border-radius: 14px;
    }

    .hero-phone-frame .phone-notch {
        width: 32px;
        height: 12px;
        top: 6px;
    }

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

    .btn {
        width: 100%;
    }

    .hero-stats {
        flex-direction: column;
        gap: 16px;
    }

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

    .about-visual {
        padding: 20px;
    }

    .about-phone-frame {
        width: 160px;
        padding: 10px;
        border-radius: 28px;
    }

    .about-phone-notch {
        top: 10px;
        width: 70px;
        height: 18px;
    }

    .about-phone-screen {
        border-radius: 18px;
    }

    .about-float-card {
        padding: 8px 14px;
        bottom: 10px;
        right: 10px;
    }

    .float-icon {
        font-size: 16px;
    }

    .float-text {
        font-size: 12px;
    }

    .phone-frame {
        width: 100px;
        padding: 6px;
        border-radius: 18px;
    }

    .phone-frame.mini {
        width: 80px;
        padding: 5px;
        border-radius: 14px;
    }

    .phone-frame.mini .phone-notch {
        width: 30px;
        height: 10px;
        top: 5px;
    }

    .phone-notch {
        top: 6px;
        width: 40px;
        height: 12px;
    }

    .product-phones {
        gap: 8px;
    }

    .product-phone-item .phone-label {
        font-size: 11px;
    }
}