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

html {
    overflow-y: scroll;
    scroll-behavior: smooth;
}

:root {
    --primary-color: #6366F1;
    --primary-hover: #4F46E5;
    --secondary-color: #818CF8;
    --accent-cyan: #38BDF8;
    --accent-purple: #A855F7;
    
    --bg-base: #08090E;
    --bg-surface: #0E1017;
    --bg-card: rgba(18, 20, 29, 0.65);
    --bg-card-hover: rgba(26, 29, 43, 0.75);
    --bg-glass: rgba(255, 255, 255, 0.03);
    --bg-glass-hover: rgba(255, 255, 255, 0.06);
    
    --border-color: rgba(255, 255, 255, 0.08);
    --border-hover: rgba(99, 102, 241, 0.4);
    --border-light: rgba(255, 255, 255, 0.05);
    
    --text-dark: #F1F5F9;
    --text-color: #E2E8F0;
    --text-light: #94A3B8;
    --text-muted: #64748B;
    --white: #FFFFFF;
    
    --success-color: #10B981;
    --warning-color: #F59E0B;
    --danger-color: #EF4444;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
    background-color: #08090E;
    background-image: 
        radial-gradient(circle at 18% 12%, rgba(99, 102, 241, 0.16) 0%, transparent 45%),
        radial-gradient(circle at 82% 18%, rgba(168, 85, 247, 0.13) 0%, transparent 40%),
        radial-gradient(circle at 50% 50%, rgba(56, 189, 248, 0.08) 0%, transparent 50%),
        radial-gradient(circle at 78% 85%, rgba(99, 102, 241, 0.14) 0%, transparent 45%),
        radial-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px);
    background-size: 100% 100%, 100% 100%, 100% 100%, 100% 100%, 32px 32px;
    background-attachment: fixed;
    color: var(--text-dark);
    min-height: 100vh;
    overflow-x: hidden;
}

/* 自定义滚动条 - 暗黑磨砂流光 */
body::-webkit-scrollbar {
    width: 10px;
}

body::-webkit-scrollbar-track {
    background: #08090E;
    margin-top: 56px;
}

body::-webkit-scrollbar-thumb {
    background: rgba(99, 102, 241, 0.4);
    border-radius: 5px;
    border: 2px solid rgba(8, 9, 14, 0.8);
    background-clip: padding-box;
    transition: all 0.3s ease;
}

body::-webkit-scrollbar-thumb:hover {
    background: rgba(99, 102, 241, 0.8);
    box-shadow: 0 0 10px rgba(99, 102, 241, 0.5);
}

body::-webkit-scrollbar-button {
    display: none;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ==================== 导航栏样式 ==================== */
.navbar {
    background: rgba(8, 9, 14, 0.75);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    padding: 10px 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    transition: all 0.3s ease;
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 20px;
    font-weight: 700;
    color: #FFFFFF;
    letter-spacing: -0.3px;
    text-decoration: none;
}

.logo img {
    filter: drop-shadow(0 0 12px rgba(99, 102, 241, 0.5));
    transition: transform 0.3s ease;
}

.logo:hover img {
    transform: scale(1.06);
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 28px;
    align-items: center;
}

.nav-links li {
    position: relative;
}

.nav-links a {
    color: var(--text-light);
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    transition: all 0.25s ease;
    display: flex;
    align-items: center;
    gap: 4px;
}

.nav-links a:hover {
    color: #FFFFFF;
    text-shadow: 0 0 12px rgba(99, 102, 241, 0.6);
}

.nav-links a.active {
    color: #FFFFFF;
    font-weight: 600;
}

.nav-links a.active::after {
    content: '';
    position: absolute;
    bottom: -6px;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    border-radius: 2px;
    box-shadow: 0 0 8px rgba(99, 102, 241, 0.6);
}

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

.btn-login {
    background: linear-gradient(135deg, #6366F1 0%, #4F46E5 100%);
    color: #FFFFFF;
    border: 1px solid rgba(255, 255, 255, 0.2);
    padding: 10px 22px;
    border-radius: 10px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    align-items: center;
    gap: 8px;
    text-decoration: none;
    box-shadow: 0 0 20px rgba(99, 102, 241, 0.35);
    position: relative;
    overflow: hidden;
}

.btn-login::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.6s ease;
}

.btn-login:hover::before {
    left: 100%;
}

.btn-login:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 30px rgba(99, 102, 241, 0.6);
    border-color: rgba(255, 255, 255, 0.4);
}

.btn-login svg {
    stroke-width: 2.2;
}

/* ==================== 首屏 Hero 区域 ==================== */
.hero-section {
    padding: 90px 0 50px;
    position: relative;
    background: transparent;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 600px;
    background: radial-gradient(circle at 50% 20%, rgba(99, 102, 241, 0.18) 0%, transparent 70%);
    pointer-events: none;
    z-index: 0;
}

.hero-section > .container {
    position: relative;
    z-index: 1;
}

.hero-content {
    text-align: center;
    margin-bottom: 50px;
}

.hero-title {
    font-size: clamp(38px, 5.5vw, 62px);
    font-weight: 800;
    background: linear-gradient(135deg, #FFFFFF 0%, #F1F5F9 45%, #818CF8 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 24px;
    line-height: 1.25;
    letter-spacing: -0.02em;
}

.hero-subtitle {
    font-size: 18px;
    color: var(--text-light);
    margin-bottom: 32px;
    line-height: 1.7;
    max-width: 720px;
    margin-left: auto;
    margin-right: auto;
}

/* 客户端支持说明区域 */
.client-support-section {
    display: flex;
    align-items: center;
    justify-content: flex-start;
    gap: 20px;
    margin: 40px 0 20px;
    position: relative;
    padding-left: 10%;
}

.curve-arrow-left {
    width: 140px;
    height: 100px;
    flex-shrink: 0;
    filter: drop-shadow(0 0 8px rgba(99, 102, 241, 0.5));
}

.client-support-text {
    font-size: 15px;
    color: var(--text-color);
    font-weight: 500;
    letter-spacing: 0.3px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    padding: 10px 20px;
    border-radius: 20px;
}

/* 私有客户端说明区域 */
.private-client-section {
    display: flex;
    align-items: flex-start;
    justify-content: flex-end;
    gap: 20px;
    margin: 20px 0 40px;
    position: relative;
    padding-right: 10%;
}

.curve-arrow-down-right {
    width: 140px;
    height: 120px;
    flex-shrink: 0;
    filter: drop-shadow(0 0 8px rgba(99, 102, 241, 0.5));
}

.private-client-text {
    font-size: 15px;
    color: var(--text-color);
    font-weight: 500;
    letter-spacing: 0.3px;
    padding: 12px 24px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-radius: 12px;
    margin-top: 10px;
    max-width: 420px;
    text-align: center;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

/* 支持的客户端徽章条 */
.supported-clients {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 20px;
    flex-wrap: wrap;
    margin: 30px 0 60px;
    padding: 0 20px;
}

.client-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    opacity: 0;
    animation: fadeInUp 0.6s ease-out forwards;
}

.client-item:nth-child(1) { animation-delay: 0.1s; }
.client-item:nth-child(2) { animation-delay: 0.2s; }
.client-item:nth-child(3) { animation-delay: 0.3s; }
.client-item:nth-child(4) { animation-delay: 0.4s; }
.client-item:nth-child(5) { animation-delay: 0.5s; }
.client-item:nth-child(6) { animation-delay: 0.6s; }
.client-item:nth-child(7) { animation-delay: 0.7s; }
.client-item:nth-child(8) { animation-delay: 0.8s; }
.client-item:nth-child(9) { animation-delay: 0.9s; }

.client-logo {
    width: 58px;
    height: 58px;
    border-radius: 14px;
    overflow: hidden;
    background: rgba(18, 20, 29, 0.7);
    border: 1px solid rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.4);
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.client-logo:hover {
    border-color: rgba(99, 102, 241, 0.5);
    box-shadow: 0 0 20px rgba(99, 102, 241, 0.35);
    transform: translateY(-3px);
}

.client-logo svg {
    width: 100%;
    height: 100%;
    display: block;
}

.client-item span {
    font-size: 12px;
    color: var(--text-light);
    font-weight: 500;
    white-space: nowrap;
}

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

/* ==================== 首屏设备端展示 ==================== */
.hero-images {
    margin-top: 40px;
    max-width: 1400px;
    margin-left: auto;
    margin-right: auto;
    padding: 0 20px;
}

.device-showcase {
    position: relative;
    display: flex;
    align-items: flex-end;
    justify-content: center;
    gap: 40px;
    min-height: 560px;
    padding-bottom: 50px;
}

.device-wrapper {
    position: relative;
    z-index: 2;
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.desktop-wrapper {
    flex: 0 0 62%;
}

.mobile-wrapper {
    flex: 0 0 20%;
    align-self: flex-end;
}

.device-wrapper:hover {
    transform: translateY(-4px) scale(1.01);
}

.device-frame {
    position: relative;
    background: #0f1118;
    border-radius: 20px;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.12);
    box-shadow: 
        0 40px 80px -20px rgba(0, 0, 0, 0.7),
        0 20px 50px -25px rgba(99, 102, 241, 0.35),
        inset 0 1px 0 0 rgba(255, 255, 255, 0.15);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.device-wrapper:hover .device-frame {
    border-color: rgba(99, 102, 241, 0.5);
    box-shadow: 
        0 50px 100px -20px rgba(0, 0, 0, 0.8),
        0 30px 70px -25px rgba(99, 102, 241, 0.55),
        inset 0 1px 0 0 rgba(255, 255, 255, 0.25);
}

.desktop-frame {
    border-radius: 12px;
}

.frame-header {
    height: 36px;
    background: #141724;
    border-radius: 12px 12px 0 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 16px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.frame-title {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.9);
    font-weight: 500;
}

.frame-controls {
    display: flex;
    gap: 8px;
}

.control-btn {
    width: 28px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    cursor: pointer;
    border: none;
}

.control-btn svg line,
.control-btn svg rect {
    stroke: rgba(255, 255, 255, 0.7);
}

.control-btn:hover {
    background: rgba(255, 255, 255, 0.1);
}

.control-btn.close:hover {
    background: #E81123;
}

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

.android-status-bar {
    height: 28px;
    background: #0D0E14;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 16px;
    color: rgba(255, 255, 255, 0.7);
    font-size: 12px;
}

.android-nav-bar {
    height: 20px;
    background: #0D0E14;
    display: flex;
    align-items: center;
    justify-content: center;
}

.gesture-bar {
    width: 72px;
    height: 4px;
    background: rgba(255, 255, 255, 0.4);
    border-radius: 2px;
}

/* ==================== 功能特性区样式 ==================== */
.features-section {
    padding: 100px 0;
    background: transparent;
    position: relative;
}

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

.section-tag {
    color: var(--secondary-color);
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 14px;
    letter-spacing: 1.5px;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 16px;
    background: rgba(99, 102, 241, 0.1);
    border: 1px solid rgba(99, 102, 241, 0.2);
    border-radius: 20px;
}

.section-tag-icon {
    width: 18px;
    height: 18px;
    display: inline-block;
}

.section-title {
    font-size: clamp(32px, 4vw, 44px);
    font-weight: 700;
    color: #FFFFFF;
    margin-bottom: 16px;
    letter-spacing: -0.02em;
}

.section-title .highlight {
    background: linear-gradient(135deg, #6366F1 0%, #A855F7 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-subtitle {
    font-size: 16px;
    color: var(--text-light);
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.6;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.feature-card {
    padding: 36px 32px;
    background: rgba(18, 20, 29, 0.6);
    border: 1px solid rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-radius: 20px;
    box-shadow: inset 0 1px 0 0 rgba(255, 255, 255, 0.08), 0 8px 32px rgba(0, 0, 0, 0.3);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, rgba(99, 102, 241, 0.4), transparent);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.feature-card:hover {
    background: rgba(26, 29, 43, 0.75);
    border-color: rgba(99, 102, 241, 0.4);
    box-shadow: inset 0 1px 0 0 rgba(255, 255, 255, 0.15), 0 16px 40px rgba(99, 102, 241, 0.2);
    transform: translateY(-4px);
}

.feature-card:hover::before {
    opacity: 1;
}

.feature-icon {
    width: 60px;
    height: 60px;
    border-radius: 14px;
    background: linear-gradient(135deg, #6366F1 0%, #8B5CF6 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    margin-bottom: 24px;
    box-shadow: 0 0 24px rgba(99, 102, 241, 0.4);
}

.feature-title {
    font-size: 20px;
    font-weight: 600;
    color: #FFFFFF;
    margin-bottom: 12px;
}

.feature-desc {
    font-size: 15px;
    color: var(--text-light);
    line-height: 1.6;
}

/* ==================== 客户评价轮播区 ==================== */
.testimonials-scroll-section {
    padding: 80px 0;
    background: transparent;
    overflow: hidden;
}

.testimonials-scroll-container {
    display: flex;
    flex-direction: column;
    gap: 24px;
    position: relative;
    padding: 0 20px;
}

.testimonials-scroll-container::before,
.testimonials-scroll-container::after {
    content: '';
    position: absolute;
    top: 0;
    bottom: 0;
    width: 140px;
    z-index: 2;
    pointer-events: none;
}

.testimonials-scroll-container::before {
    left: 0;
    background: linear-gradient(to right, #08090E, transparent);
}

.testimonials-scroll-container::after {
    right: 0;
    background: linear-gradient(to left, #08090E, transparent);
}

.testimonials-row {
    display: flex;
    overflow: hidden;
    position: relative;
}

.testimonials-track {
    display: flex;
    gap: 24px;
    animation-duration: 45s;
    animation-timing-function: linear;
    animation-iteration-count: infinite;
}

.scroll-left .testimonials-track {
    animation-name: scrollLeft;
}

.scroll-right .testimonials-track {
    animation-name: scrollRight;
}

@keyframes scrollLeft {
    0% { transform: translateX(0); }
    100% { transform: translateX(-50%); }
}

@keyframes scrollRight {
    0% { transform: translateX(-50%); }
    100% { transform: translateX(0); }
}

.testimonials-row:hover .testimonials-track {
    animation-play-state: paused;
}

.testimonial-card {
    min-width: 380px;
    max-width: 380px;
    background: rgba(18, 20, 29, 0.65);
    border: 1px solid rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-radius: 18px;
    padding: 26px;
    box-shadow: inset 0 1px 0 0 rgba(255, 255, 255, 0.08), 0 8px 24px rgba(0, 0, 0, 0.4);
    transition: all 0.3s ease;
    flex-shrink: 0;
}

.testimonial-card:hover {
    border-color: rgba(99, 102, 241, 0.4);
    box-shadow: inset 0 1px 0 0 rgba(255, 255, 255, 0.15), 0 12px 32px rgba(99, 102, 241, 0.2);
    transform: translateY(-2px);
}

.testimonial-header {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-bottom: 16px;
}

.testimonial-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    border: 2px solid rgba(99, 102, 241, 0.35);
    filter: drop-shadow(0 0 8px rgba(99, 102, 241, 0.2));
}

.testimonial-user {
    flex: 1;
}

.testimonial-name {
    font-size: 15px;
    font-weight: 700;
    color: #FFFFFF;
    margin-bottom: 2px;
}

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

.testimonial-content {
    font-size: 14px;
    line-height: 1.7;
    color: #CBD5E1;
}

/* ==================== 定价套餐区样式 ==================== */
.pricing-section {
    padding: 100px 0;
    background: transparent;
    position: relative;
}

/* 模式选择器 */
.pricing-mode-selector {
    display: flex;
    justify-content: center;
    margin: 40px auto 60px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    padding: 6px;
    border-radius: 14px;
    max-width: fit-content;
}

.mode-btn {
    padding: 14px 32px;
    background: transparent;
    border: 1px solid transparent;
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.25s ease;
    text-align: center;
    white-space: nowrap;
}

.mode-btn .mode-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-light);
    margin-bottom: 4px;
    transition: color 0.2s;
}

.mode-btn .mode-desc {
    font-size: 12px;
    color: var(--text-muted);
    line-height: 1.4;
}

.mode-btn:hover .mode-title {
    color: #FFFFFF;
}

.mode-btn.active {
    background: rgba(99, 102, 241, 0.2);
    border: 1px solid rgba(99, 102, 241, 0.5);
    box-shadow: 0 0 20px rgba(99, 102, 241, 0.3);
}

.mode-btn.active .mode-title {
    color: #FFFFFF;
}

.mode-btn.active .mode-desc {
    color: #CBD5E1;
}

.pricing-grid {
    display: none;
}

.pricing-grid.active {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
    margin-bottom: 80px;
}

.pricing-card {
    background: rgba(18, 20, 29, 0.65);
    border: 1px solid rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-radius: 22px;
    padding: 40px 32px;
    position: relative;
    display: flex;
    flex-direction: column;
    box-shadow: inset 0 1px 0 0 rgba(255, 255, 255, 0.08), 0 16px 40px rgba(0, 0, 0, 0.5);
    transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

.pricing-card:hover {
    border-color: rgba(99, 102, 241, 0.4);
    box-shadow: inset 0 1px 0 0 rgba(255, 255, 255, 0.15), 0 20px 50px rgba(99, 102, 241, 0.2);
    transform: translateY(-4px);
}

.pricing-card.featured {
    background: linear-gradient(180deg, rgba(99, 102, 241, 0.12) 0%, rgba(18, 20, 29, 0.75) 100%);
    border: 1px solid rgba(99, 102, 241, 0.6);
    box-shadow: 
        inset 0 1px 0 0 rgba(168, 85, 247, 0.3),
        0 0 35px rgba(99, 102, 241, 0.25),
        0 20px 50px rgba(0, 0, 0, 0.6);
}

.pricing-card.featured:hover {
    box-shadow: 
        inset 0 1px 0 0 rgba(168, 85, 247, 0.4),
        0 0 45px rgba(99, 102, 241, 0.35),
        0 24px 60px rgba(0, 0, 0, 0.7);
}

.pricing-header {
    text-align: left;
    margin-bottom: 32px;
    padding-bottom: 24px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.pricing-title {
    font-size: 24px;
    font-weight: 600;
    color: #E2E8F0;
    margin-bottom: 20px;
    letter-spacing: -0.3px;
}

.pricing-price-wrapper {
    display: flex;
    align-items: flex-start;
    gap: 6px;
    margin-bottom: 16px;
}

.price-symbol {
    font-size: 24px;
    font-weight: 700;
    color: #818CF8;
    margin-top: 4px;
}

.price-amount {
    font-size: 64px;
    font-weight: 800;
    color: #FFFFFF;
    letter-spacing: -2px;
    line-height: 1;
    text-shadow: 0 0 25px rgba(99, 102, 241, 0.35);
}

.price-right {
    display: flex;
    flex-direction: column;
    gap: 2px;
    margin-left: 6px;
    margin-top: 6px;
}

.price-period {
    font-size: 15px;
    font-weight: 500;
    color: var(--text-light);
    line-height: 1.4;
    margin: 0;
}

.pricing-desc {
    font-size: 13px;
    color: var(--text-muted);
    margin: 0;
    font-weight: 400;
    line-height: 1.4;
}

.price-smile-icon {
    width: 80px;
    height: auto;
    margin: 0;
    display: block;
    filter: drop-shadow(0 0 8px rgba(99, 102, 241, 0.4));
}

.pricing-features {
    list-style: none;
    margin-bottom: 32px;
    padding: 0;
    padding-bottom: 24px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 0;
    font-size: 15px;
    color: var(--text-light);
    line-height: 1.5;
}

.feature-item:first-child {
    padding-top: 0;
}

.feature-item .arrow-icon {
    width: 18px;
    height: 18px;
    color: #818CF8;
    flex-shrink: 0;
}

.pricing-support {
    background: transparent;
    padding: 0;
    margin-bottom: 24px;
    display: grid;
    grid-template-columns: 1fr auto;
    grid-template-rows: auto auto;
    gap: 4px 16px;
    align-items: center;
}

.support-label {
    font-size: 14px;
    font-weight: 600;
    color: #E2E8F0;
    margin: 0;
    grid-column: 1;
    grid-row: 1;
}

.support-detail {
    font-size: 13px;
    color: var(--text-muted);
    margin: 0;
    grid-column: 1;
    grid-row: 2;
}

.support-badge {
    display: inline-block;
    font-size: 12px;
    font-weight: 600;
    color: #CBD5E1;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.1);
    padding: 6px 12px;
    border-radius: 6px;
    grid-column: 2;
    grid-row: 1 / 3;
    align-self: center;
}

.support-badge.featured {
    background: rgba(99, 102, 241, 0.3);
    color: #FFFFFF;
    border-color: rgba(99, 102, 241, 0.5);
    box-shadow: 0 0 12px rgba(99, 102, 241, 0.4);
}

.support-badge.premium {
    background: rgba(168, 85, 247, 0.3);
    color: #FFFFFF;
    border-color: rgba(168, 85, 247, 0.5);
    box-shadow: 0 0 12px rgba(168, 85, 247, 0.4);
}

.pricing-btn {
    width: 100%;
    padding: 16px 24px;
    border: 1px solid rgba(99, 102, 241, 0.35);
    background: rgba(255, 255, 255, 0.04);
    color: #818CF8;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-radius: 12px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    letter-spacing: 0.2px;
    transition: all 0.25s ease;
}

.pricing-btn:hover {
    border-color: #6366F1;
    background: rgba(99, 102, 241, 0.2);
    box-shadow: 0 0 24px rgba(99, 102, 241, 0.4);
    color: #FFFFFF;
    transform: translateY(-2px);
}

.pricing-btn.primary {
    background: linear-gradient(135deg, #6366F1 0%, #4F46E5 100%);
    color: #FFFFFF;
    border: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: 0 4px 20px rgba(99, 102, 241, 0.4), inset 0 1px 0 0 rgba(255, 255, 255, 0.3);
}

.pricing-btn.primary:hover {
    background: linear-gradient(135deg, #4F46E5 0%, #4338CA 100%);
    box-shadow: 0 6px 30px rgba(99, 102, 241, 0.6);
    transform: translateY(-2px);
}

/* ==================== 常见问题 FAQ 区域 ==================== */
.faq-section {
    padding: 100px 0;
    background: transparent;
    position: relative;
}

.faq-container {
    display: grid;
    grid-template-columns: 380px 1fr;
    gap: 60px;
    align-items: start;
}

.faq-image {
    position: relative;
}

.faq-image img {
    filter: drop-shadow(0 0 30px rgba(99, 102, 241, 0.3));
}

.faq-content {
    flex: 1;
}

.faq-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.faq-item {
    background: rgba(18, 20, 29, 0.6);
    border: 1px solid rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
    transition: all 0.3s ease;
}

.faq-item:hover {
    border-color: rgba(99, 102, 241, 0.35);
    box-shadow: 0 6px 24px rgba(99, 102, 241, 0.15);
}

.faq-item.active {
    border-color: rgba(99, 102, 241, 0.55);
    box-shadow: 0 0 25px rgba(99, 102, 241, 0.25);
    background: rgba(25, 28, 41, 0.75);
}

.faq-question {
    padding: 22px 28px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    font-size: 16px;
    font-weight: 600;
    color: #FFFFFF;
    user-select: none;
}

.faq-icon {
    color: #818CF8;
    flex-shrink: 0;
    transition: transform 0.3s ease;
}

.faq-item.active .faq-icon {
    transform: rotate(180deg);
    color: #A855F7;
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.35s ease-out;
}

.faq-item.active .faq-answer {
    max-height: 500px;
}

.faq-answer p {
    padding: 0 28px 24px;
    margin: 0;
    font-size: 15px;
    line-height: 1.75;
    color: var(--text-light);
}

/* ==================== 页脚样式 ==================== */
.footer {
    background: rgba(8, 9, 14, 0.85);
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    padding: 36px 0;
    color: var(--text-muted);
}

.footer-simple {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-brand-simple {
    display: flex;
    align-items: center;
    gap: 20px;
}

.footer-brand-simple .logo {
    color: #FFFFFF;
}

.footer-slogan {
    font-size: 14px;
    color: var(--text-muted);
}

.footer-simple .copyright {
    font-size: 14px;
    color: var(--text-muted);
}

/* ==================== 下载页面 (download.html) 样式 ==================== */
.download-hero-section {
    padding: 90px 0 50px;
    position: relative;
    background: transparent;
}

.download-hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 500px;
    background: radial-gradient(circle at 50% 25%, rgba(99, 102, 241, 0.18) 0%, transparent 70%);
    pointer-events: none;
    z-index: 0;
}

.download-hero-section > .container {
    position: relative;
    z-index: 1;
}

.download-hero-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.download-intro-section {
    padding: 60px 0;
    background: transparent;
}

.intro-features {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 28px;
    margin-top: 50px;
}

.intro-card {
    text-align: center;
    padding: 36px 24px;
    background: rgba(18, 20, 29, 0.6);
    border: 1px solid rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-radius: 18px;
    transition: all 0.3s;
}

.intro-card:hover {
    box-shadow: 0 12px 40px rgba(99, 102, 241, 0.2);
    border-color: rgba(99, 102, 241, 0.4);
    transform: translateY(-4px);
}

.intro-icon {
    width: 76px;
    height: 76px;
    margin: 0 auto 20px;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.15) 0%, rgba(168, 85, 247, 0.1) 100%);
    border: 1px solid rgba(99, 102, 241, 0.3);
    border-radius: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #818CF8;
    box-shadow: 0 0 20px rgba(99, 102, 241, 0.25);
}

.intro-card h3 {
    font-size: 20px;
    font-weight: 600;
    color: #FFFFFF;
    margin-bottom: 12px;
}

.intro-card p {
    font-size: 14px;
    color: var(--text-light);
    line-height: 1.6;
}

/* 官方客户端下载区域 */
.download-official-section {
    padding: 80px 0;
    background: transparent;
}

.official-clients-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 28px;
    margin-top: 50px;
}

.official-client-card {
    background: rgba(18, 20, 29, 0.65);
    border: 1px solid rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-radius: 22px;
    padding: 40px 28px 32px;
    text-align: center;
    transition: all 0.3s;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
    position: relative;
    overflow: hidden;
}

.official-client-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, #6366F1, #A855F7);
    opacity: 0.8;
}

.official-client-card:hover {
    box-shadow: 0 16px 45px rgba(99, 102, 241, 0.25);
    border-color: rgba(99, 102, 241, 0.5);
    transform: translateY(-4px);
}

.official-client-icon {
    width: 92px;
    height: 92px;
    margin: 0 auto 24px;
    border-radius: 22px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    position: relative;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
}

.official-client-icon.windows-logo {
    background: linear-gradient(135deg, #00adef 0%, #0078d4 100%);
}

.official-client-icon.macos-logo {
    background: linear-gradient(135deg, #1e2029 0%, #3a3f58 100%);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.official-client-icon.linux-logo {
    background: linear-gradient(135deg, #FCC624 0%, #F57C00 100%);
}

.official-client-icon.ios-logo {
    background: linear-gradient(135deg, #147EFB 0%, #0A65D9 100%);
}

.official-client-icon.android-logo {
    background: linear-gradient(135deg, #3DDC84 0%, #30CC72 100%);
}

.official-client-icon svg {
    width: 48px;
    height: 48px;
    position: relative;
    z-index: 1;
}

.official-client-card h4 {
    font-size: 20px;
    font-weight: 700;
    color: #FFFFFF;
    margin-bottom: 8px;
    letter-spacing: -0.2px;
}

.official-client-card p {
    font-size: 13px;
    color: var(--text-light);
    margin-bottom: 24px;
    min-height: 36px;
    line-height: 1.6;
}

.btn-official {
    width: 100%;
    background: linear-gradient(135deg, #6366F1 0%, #4F46E5 100%);
    color: white;
    border: 1px solid rgba(255, 255, 255, 0.15);
    padding: 14px 24px;
    border-radius: 12px;
    font-size: 15px;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.3s;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    text-decoration: none;
    box-shadow: 0 4px 16px rgba(99, 102, 241, 0.4);
}

.btn-official:hover {
    box-shadow: 0 8px 28px rgba(99, 102, 241, 0.6);
    transform: translateY(-2px);
}

.btn-official.app-store {
    background: linear-gradient(135deg, #007AFF 0%, #0051D5 100%);
}

/* 第三方客户端推荐区域 */
.download-thirdparty-section {
    padding: 80px 0;
    background: transparent;
}

.thirdparty-clients-compact {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-top: 40px;
}

.thirdparty-platform-item {
    background: rgba(18, 20, 29, 0.6);
    border: 1px solid rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-radius: 18px;
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 16px;
    transition: all 0.3s ease;
}

.thirdparty-platform-item:hover {
    border-color: rgba(99, 102, 241, 0.4);
    box-shadow: 0 10px 30px rgba(99, 102, 241, 0.15);
    transform: translateY(-3px);
}

.thirdparty-platform-item .platform-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.platform-name {
    font-size: 16px;
    font-weight: 700;
    color: #FFFFFF;
}

.client-tags-compact {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.tag-mini {
    display: inline-block;
    padding: 6px 12px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 8px;
    font-size: 12px;
    color: #CBD5E1;
    text-decoration: none;
    transition: all 0.2s ease;
}

.tag-mini:hover {
    background: rgba(99, 102, 241, 0.2);
    border-color: rgba(99, 102, 241, 0.5);
    color: #FFFFFF;
    box-shadow: 0 0 12px rgba(99, 102, 241, 0.3);
}

/* 下载页面 CTA 区域 */
.download-cta-section {
    padding: 90px 40px;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.15) 0%, rgba(18, 20, 29, 0.85) 100%);
    border: 1px solid rgba(99, 102, 241, 0.35);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: 0 0 50px rgba(99, 102, 241, 0.2);
    border-radius: 28px;
    margin: 60px auto 100px;
    max-width: 1400px;
    position: relative;
    overflow: hidden;
}

.cta-content {
    text-align: center;
    position: relative;
    z-index: 1;
}

.cta-content h2 {
    font-size: clamp(32px, 4vw, 44px);
    font-weight: 800;
    color: #FFFFFF;
    margin-bottom: 16px;
}

.cta-content p {
    font-size: 18px;
    color: #CBD5E1;
    margin-bottom: 40px;
}

.cta-buttons {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 20px;
}

.btn-primary {
    background: linear-gradient(135deg, #6366F1 0%, #4F46E5 100%);
    color: white;
    border: 1px solid rgba(255, 255, 255, 0.2);
    padding: 16px 36px;
    border-radius: 12px;
    font-size: 16px;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.3s;
    display: flex;
    align-items: center;
    gap: 8px;
    box-shadow: 0 4px 20px rgba(99, 102, 241, 0.45);
}

.btn-primary:hover {
    box-shadow: 0 8px 32px rgba(99, 102, 241, 0.6);
    transform: translateY(-2px);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.04);
    color: #E2E8F0;
    border: 1px solid rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(12px);
    padding: 16px 36px;
    border-radius: 12px;
    font-size: 16px;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.3s;
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    color: white;
    border-color: rgba(255, 255, 255, 0.35);
    transform: translateY(-2px);
}

/* ==================== 响应式设计 ==================== */
@media (max-width: 1024px) {
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .pricing-grid.active {
        grid-template-columns: 1fr;
        max-width: 520px;
        margin-left: auto;
        margin-right: auto;
    }
    
    .device-showcase {
        flex-direction: column;
        align-items: center;
        gap: 30px;
    }
    
    .desktop-wrapper {
        flex: 0 0 100%;
        width: 100%;
    }
    
    .mobile-wrapper {
        flex: 0 0 40%;
        max-width: 280px;
    }
    
    .intro-features {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .thirdparty-clients-compact {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    
    .hero-section {
        padding: 60px 0 30px;
    }
    
    .client-support-section,
    .private-client-section {
        padding-left: 0;
        padding-right: 0;
        justify-content: center;
        text-align: center;
    }
    
    .curve-arrow-left,
    .curve-arrow-down-right {
        display: none;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .faq-container {
        grid-template-columns: 1fr;
        gap: 32px;
    }
    
    .faq-image {
        display: none;
    }
    
    .intro-features {
        grid-template-columns: 1fr;
    }
    
    .thirdparty-clients-compact {
        grid-template-columns: 1fr;
    }
    
    .cta-buttons {
        flex-direction: column;
        width: 100%;
    }
    
    .btn-primary,
    .btn-secondary {
        width: 100%;
        justify-content: center;
    }
    
    .footer-simple {
        flex-direction: column;
        gap: 16px;
        text-align: center;
    }
    
    .footer-brand-simple {
        flex-direction: column;
        gap: 10px;
    }
}