/* =====================
   星驰VPN加速器 - Styles
   Apple-style bright design
   ===================== */

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

:root {
    /* Colors */
    --blue: #0071e3;
    --blue-light: #2997ff;
    --blue-dark: #0058b0;
    --purple: #5856d6;
    --green: #34c759;
    --orange: #ff9500;
    --red: #ff3b30;
    --teal: #5ac8fa;
    --pink: #ff2d92;

    /* Neutrals */
    --white: #ffffff;
    --bg: #fbfbfd;
    --bg-gray: #f5f5f7;
    --bg-gray-dark: #e8e8ed;
    --text: #1d1d1f;
    --text-secondary: #6e6e73;
    --text-tertiary: #86868b;
    --border: #d2d2d7;
    --border-light: #e5e5ea;

    /* Shadows */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 24px 80px rgba(0, 0, 0, 0.12);

    /* Radius */
    --radius-sm: 10px;
    --radius-md: 16px;
    --radius-lg: 22px;
    --radius-xl: 32px;

    /* Transitions */
    --ease: cubic-bezier(0.4, 0, 0.2, 1);
    --ease-bounce: cubic-bezier(0.34, 1.56, 0.64, 1);
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

body {
    font-family: 'Inter', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'Helvetica Neue', sans-serif;
    color: var(--text);
    background: var(--bg);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

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

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

/* ===== Buttons ===== */
.btn-primary, .btn-outline, .btn-ghost, .btn-white {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    border: none;
    border-radius: 980px;
    font-weight: 500;
    font-size: 16px;
    cursor: pointer;
    transition: all 0.3s var(--ease);
    white-space: nowrap;
    font-family: inherit;
}

.btn-primary {
    background: var(--blue);
    color: var(--white);
    padding: 12px 28px;
}
.btn-primary:hover {
    background: var(--blue-dark);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(0, 113, 227, 0.3);
}

.btn-outline {
    background: transparent;
    color: var(--blue);
    border: 1.5px solid var(--blue);
    padding: 12px 28px;
}
.btn-outline:hover {
    background: var(--blue);
    color: var(--white);
    transform: translateY(-2px);
}

.btn-ghost {
    background: rgba(255, 255, 255, 0.8);
    color: var(--text);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border-light);
    padding: 12px 28px;
}
.btn-ghost:hover {
    background: var(--white);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-white {
    background: var(--white);
    color: var(--text);
    padding: 14px 36px;
}
.btn-white:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-sm { padding: 8px 20px; font-size: 14px; }
.btn-lg { padding: 16px 40px; font-size: 18px; }
.btn-block { width: 100%; }

/* ===== Navbar ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 64px;
    background: rgba(255, 255, 255, 0.72);
    backdrop-filter: saturate(180%) blur(20px);
    -webkit-backdrop-filter: saturate(180%) blur(20px);
    z-index: 1000;
    transition: all 0.3s var(--ease);
    border-bottom: 1px solid transparent;
}
.navbar.scrolled {
    border-bottom-color: var(--border-light);
    box-shadow: var(--shadow-sm);
}
.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.logo {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 20px;
    font-weight: 700;
    color: var(--text);
}
.logo-icon {
    flex-shrink: 0;
}
.nav-links {
    display: flex;
    gap: 32px;
    list-style: none;
}
.nav-links a {
    font-size: 14px;
    color: var(--text-secondary);
    transition: color 0.2s var(--ease);
    position: relative;
}
.nav-links a:hover { color: var(--text); }
.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--blue);
    transition: width 0.3s var(--ease);
}
.nav-links a:hover::after { width: 100%; }
.nav-actions {
    display: flex;
    gap: 12px;
    align-items: center;
}
.hamburger {
    display: none;
    background: none;
    border: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 8px;
}
.hamburger span {
    width: 24px;
    height: 2px;
    background: var(--text);
    border-radius: 2px;
    transition: all 0.3s var(--ease);
}
.hamburger.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}
.hamburger.active span:nth-child(2) { opacity: 0; }
.hamburger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* ===== Hero ===== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    background: linear-gradient(180deg, #ffffff 0%, #f5f5f7 100%);
    overflow: hidden;
    padding-top: 64px;
}
.hero-bg-overlay {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(circle at 20% 50%, rgba(0, 113, 227, 0.08) 0%, transparent 50%),
        radial-gradient(circle at 80% 30%, rgba(88, 86, 214, 0.06) 0%, transparent 50%),
        radial-gradient(circle at 50% 80%, rgba(0, 198, 255, 0.05) 0%, transparent 50%);
}
.hero-content {
    max-width: 600px;
    padding: 0 24px;
    margin: 0 auto;
    text-align: center;
    position: relative;
    z-index: 2;
}
.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(0, 113, 227, 0.08);
    color: var(--blue);
    padding: 8px 20px;
    border-radius: 980px;
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 32px;
}
.hero h1 {
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: -0.02em;
    margin-bottom: 24px;
}
.gradient-text {
    background: linear-gradient(135deg, var(--blue) 0%, var(--teal) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.hero p {
    font-size: clamp(1rem, 2vw, 1.25rem);
    color: var(--text-secondary);
    margin-bottom: 40px;
    line-height: 1.6;
}
.hero-cta {
    display: flex;
    gap: 16px;
    justify-content: center;
    margin-bottom: 48px;
    flex-wrap: wrap;
}
.hero-stats {
    display: flex;
    gap: 32px;
    justify-content: center;
    flex-wrap: wrap;
}
.stat-mini {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--text-tertiary);
    font-size: 14px;
}
.stat-mini i {
    color: var(--blue);
    font-size: 18px;
}

/* Hero Visual - Orb */
.hero-visual {
    position: absolute;
    right: -10%;
    top: 50%;
    transform: translateY(-50%);
    width: 600px;
    height: 600px;
    opacity: 0.7;
    pointer-events: none;
}
.hero-orb {
    position: relative;
    width: 100%;
    height: 100%;
}
.orb-ring {
    position: absolute;
    top: 50%;
    left: 50%;
    border-radius: 50%;
    border: 2px solid rgba(0, 113, 227, 0.15);
    transform: translate(-50%, -50%);
}
.orb-ring.r1 { width: 200px; height: 200px; animation: rotate 20s linear infinite; }
.orb-ring.r2 { width: 350px; height: 350px; animation: rotate 30s linear infinite reverse; }
.orb-ring.r3 { width: 500px; height: 500px; animation: rotate 40s linear infinite; }
.orb-core {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--blue), var(--teal));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    color: white;
    box-shadow: 0 0 60px rgba(0, 113, 227, 0.3);
}
.orb-node {
    position: absolute;
    width: 40px;
    height: 40px;
    background: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    box-shadow: var(--shadow-md);
    animation: pulse 3s ease-in-out infinite;
}
.orb-node.n1 { top: 10%; left: 40%; }
.orb-node.n2 { top: 25%; right: 5%; }
.orb-node.n3 { top: 55%; right: 0%; }
.orb-node.n4 { bottom: 15%; left: 30%; }
.orb-node.n5 { bottom: 5%; right: 25%; }
.orb-node.n6 { top: 15%; left: 10%; }

@keyframes rotate {
    to { transform: translate(-50%, -50%) rotate(360deg); }
}
@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.1); }
}

.scroll-hint {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    color: var(--text-tertiary);
    font-size: 20px;
    animation: bounce 2s infinite;
}
@keyframes bounce {
    0%, 100% { transform: translateX(-50%) translateY(0); }
    50% { transform: translateX(-50%) translateY(10px); }
}

/* ===== Stats Bar ===== */
.stats-bar {
    background: var(--white);
    padding: 80px 0;
    border-bottom: 1px solid var(--border-light);
}
.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}
.stat-item {
    text-align: center;
    padding: 24px;
    border-right: 1px solid var(--border-light);
}
.stat-item:last-child { border-right: none; }
.stat-icon {
    width: 56px;
    height: 56px;
    margin: 0 auto 16px;
    background: linear-gradient(135deg, var(--blue), var(--teal));
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    color: white;
}
.stat-number {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--text);
    letter-spacing: -0.02em;
}
.stat-label {
    color: var(--text-tertiary);
    font-size: 15px;
    margin-top: 4px;
}

/* ===== Section Headers ===== */
.section-header {
    text-align: center;
    margin-bottom: 64px;
}
.section-tag {
    display: inline-block;
    background: rgba(0, 113, 227, 0.08);
    color: var(--blue);
    padding: 6px 16px;
    border-radius: 980px;
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 16px;
}
.section-tag.dark {
    background: rgba(255, 255, 255, 0.15);
    color: var(--blue-light);
}
.section-header h2 {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 800;
    letter-spacing: -0.02em;
    margin-bottom: 16px;
}
.section-header p {
    font-size: 1.1rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* ===== Features ===== */
.features {
    background: var(--bg-gray);
    padding: 100px 0;
}
.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
.feature-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 40px 32px;
    position: relative;
    overflow: hidden;
    transition: all 0.3s var(--ease);
    border: 1px solid var(--border-light);
}
.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}
.feature-bg {
    position: absolute;
    top: 0;
    right: 0;
    width: 200px;
    height: 200px;
    border-radius: 50%;
    transform: translate(30%, -30%);
    pointer-events: none;
}
.feature-icon {
    width: 56px;
    height: 56px;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    color: white;
    margin-bottom: 24px;
    position: relative;
    z-index: 1;
}
.feature-icon.blue { background: linear-gradient(135deg, #0071e3, #2997ff); }
.feature-icon.purple { background: linear-gradient(135deg, #5856d6, #af52de); }
.feature-icon.green { background: linear-gradient(135deg, #34c759, #30d158); }
.feature-icon.orange { background: linear-gradient(135deg, #ff9500, #ff6b00); }
.feature-icon.red { background: linear-gradient(135deg, #ff3b30, #ff453a); }
.feature-icon.teal { background: linear-gradient(135deg, #5ac8fa, #64d2ff); }

.feature-card h3 {
    font-size: 1.4rem;
    font-weight: 700;
    margin-bottom: 12px;
    position: relative;
    z-index: 1;
}
.feature-card p {
    color: var(--text-secondary);
    line-height: 1.6;
    position: relative;
    z-index: 1;
}

/* ===== Tech Showcase ===== */
.tech-showcase {
    background: linear-gradient(135deg, #0a0e27 0%, #1a1f3a 100%);
    padding: 100px 0;
    color: white;
    overflow: hidden;
}
.tech-split {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: center;
}
.tech-text h2 {
    font-size: clamp(1.8rem, 4vw, 2.8rem);
    font-weight: 800;
    margin-bottom: 20px;
    line-height: 1.2;
}
.tech-desc {
    color: rgba(255, 255, 255, 0.6);
    font-size: 1.1rem;
    margin-bottom: 32px;
}
.tech-points {
    margin-bottom: 40px;
}
.tech-point {
    display: flex;
    gap: 16px;
    margin-bottom: 24px;
}
.tech-point i {
    color: var(--blue-light);
    font-size: 24px;
    flex-shrink: 0;
    margin-top: 2px;
}
.tech-point h4 {
    font-size: 1.1rem;
    margin-bottom: 4px;
}
.tech-point p {
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.95rem;
}
.tech-visual {
    position: relative;
}
.tech-card-3d {
    position: relative;
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: 0 30px 80px rgba(0, 0, 0, 0.4);
}
.tech-card-3d img {
    width: 100%;
    height: 400px;
    object-fit: cover;
}
.tech-badge {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    display: flex;
    justify-content: space-around;
    padding: 20px;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(20px);
}
.tech-badge-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    color: white;
    font-size: 14px;
    font-weight: 500;
}
.tech-badge-item i {
    font-size: 20px;
    color: var(--blue-light);
}

/* ===== Global Nodes ===== */
.nodes-section {
    background: var(--white);
    padding: 100px 0;
}
.nodes-map {
    position: relative;
    margin-bottom: 64px;
    border-radius: var(--radius-xl);
    overflow: hidden;
}
.world-map-img {
    width: 100%;
    height: 400px;
    object-fit: cover;
    filter: brightness(0.95);
}
.map-pulse-dot {
    position: absolute;
    width: 14px;
    height: 14px;
    background: var(--blue);
    border-radius: 50%;
    box-shadow: 0 0 0 0 rgba(0, 113, 227, 0.5);
    animation: mapPulse 2s infinite;
}
@keyframes mapPulse {
    0% { box-shadow: 0 0 0 0 rgba(0, 113, 227, 0.5); }
    70% { box-shadow: 0 0 0 20px rgba(0, 113, 227, 0); }
    100% { box-shadow: 0 0 0 0 rgba(0, 113, 227, 0); }
}
.nodes-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}
.node-region {
    background: var(--bg-gray);
    border-radius: var(--radius-lg);
    padding: 32px 24px;
    transition: all 0.3s var(--ease);
}
.node-region:hover {
    background: var(--white);
    box-shadow: var(--shadow-md);
    transform: translateY(-4px);
}
.region-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--border-light);
}
.region-header h3 {
    font-size: 1.1rem;
    font-weight: 700;
}
.region-header h3 i {
    color: var(--blue);
    margin-right: 8px;
}
.node-count {
    font-size: 13px;
    color: var(--text-tertiary);
    background: var(--white);
    padding: 4px 12px;
    border-radius: 980px;
}
.node-list li {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 0;
    color: var(--text-secondary);
    font-size: 0.95rem;
    border-bottom: 1px solid var(--border-light);
}
.node-list li:last-child { border-bottom: none; }
.node-list .flag { font-size: 18px; }

/* ===== Scenes ===== */
.scenes-section {
    background: var(--bg-gray);
    padding: 100px 0;
}
.scenes-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}
.scene-card {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    height: 320px;
    cursor: pointer;
    transition: all 0.3s var(--ease);
}
.scene-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}
.scene-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s var(--ease);
}
.scene-card:hover img {
    transform: scale(1.1);
}
.scene-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent 30%, rgba(0, 0, 0, 0.8) 100%);
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: 32px 24px;
    color: white;
}
.scene-overlay i {
    font-size: 28px;
    margin-bottom: 12px;
    color: var(--blue-light);
}
.scene-overlay h3 {
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 8px;
}
.scene-overlay p {
    font-size: 0.9rem;
    opacity: 0.85;
    line-height: 1.5;
}

/* ===== Platforms ===== */
.platforms {
    background: var(--white);
    padding: 100px 0;
}
.platforms-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    margin-bottom: 64px;
}
.platform-card {
    background: var(--bg-gray);
    border-radius: var(--radius-lg);
    padding: 40px 24px;
    text-align: center;
    transition: all 0.3s var(--ease);
    border: 1px solid var(--border-light);
}
.platform-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    background: var(--white);
}
.platform-icon {
    width: 72px;
    height: 72px;
    margin: 0 auto 20px;
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    color: white;
    transition: transform 0.3s var(--ease);
}
.platform-card:hover .platform-icon {
    transform: scale(1.1);
}
.platform-icon.windows { background: linear-gradient(135deg, #0078d4, #00a4ef); }
.platform-icon.mac { background: linear-gradient(135deg, #555555, #888888); }
.platform-icon.android { background: linear-gradient(135deg, #34a853, #4caf50); }
.platform-icon.ios { background: linear-gradient(135deg, #007aff, #5ac8fa); }

.platform-card h3 {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 4px;
}
.platform-card p {
    color: var(--text-tertiary);
    font-size: 0.9rem;
    margin-bottom: 24px;
}

/* Download prompt section */
.download-prompt {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: center;
    background: linear-gradient(135deg, #f0f6ff, #e8f4ff);
    border-radius: var(--radius-xl);
    padding: 48px;
    overflow: hidden;
}
.prompt-left img {
    width: 100%;
    border-radius: var(--radius-lg);
    object-fit: cover;
    height: 320px;
}
.prompt-right h3 {
    font-size: 1.8rem;
    font-weight: 800;
    margin-bottom: 16px;
}
.prompt-right p {
    color: var(--text-secondary);
    margin-bottom: 24px;
    line-height: 1.7;
}
.prompt-features {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 32px;
}
.pf-item {
    display: flex;
    align-items: center;
    gap: 6px;
    background: rgba(0, 113, 227, 0.08);
    color: var(--blue);
    padding: 8px 16px;
    border-radius: 980px;
    font-size: 14px;
    font-weight: 500;
}
.pf-item i { font-size: 12px; }

/* ===== Pricing ===== */
.pricing {
    background: var(--bg-gray);
    padding: 100px 0;
}
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}
.pricing-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 40px 28px;
    text-align: center;
    transition: all 0.3s var(--ease);
    border: 1px solid var(--border-light);
    position: relative;
}
.pricing-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}
.pricing-card.popular {
    border-color: var(--blue);
    border-width: 2px;
    box-shadow: 0 8px 32px rgba(0, 113, 227, 0.12);
}
.pricing-card.best-value {
    background: linear-gradient(135deg, #f0f6ff, #ffffff);
    border-color: var(--blue);
}
.pricing-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    padding: 4px 16px;
    border-radius: 980px;
    font-size: 12px;
    font-weight: 600;
    white-space: nowrap;
}
.pricing-badge.trial { background: #86868b; color: white; }
.pricing-badge.hot { background: var(--blue); color: white; }
.pricing-badge.value { background: linear-gradient(135deg, var(--blue), var(--teal)); color: white; }
.pricing-badge.pro { background: #1d1d1f; color: white; }

.pricing-card h3 {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 16px;
    margin-top: 8px;
}
.pricing-price {
    margin-bottom: 24px;
}
.pricing-price .currency {
    font-size: 1.2rem;
    font-weight: 600;
    vertical-align: super;
    color: var(--text-secondary);
}
.pricing-price .amount {
    font-size: 2.8rem;
    font-weight: 800;
    letter-spacing: -0.02em;
}
.pricing-price .period {
    display: block;
    font-size: 0.85rem;
    color: var(--text-tertiary);
    margin-top: 4px;
}
.pricing-price .period.original {
    text-decoration: line-through;
    color: var(--red);
}
.pricing-features {
    text-align: left;
    margin-bottom: 32px;
}
.pricing-features li {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 0;
    font-size: 0.9rem;
    color: var(--text-secondary);
}
.pricing-features li i {
    color: var(--green);
    font-size: 14px;
    flex-shrink: 0;
}
.pricing-note {
    text-align: center;
    color: var(--text-tertiary);
    margin-top: 32px;
    font-size: 14px;
}
.pricing-note i { color: var(--blue); }

/* ===== Testimonials ===== */
.testimonials {
    background: var(--white);
    padding: 100px 0;
    overflow: hidden;
}
.testimonialSwiper {
    padding: 20px 60px 60px;
}
.testimonial-card {
    background: var(--bg-gray);
    border-radius: var(--radius-lg);
    padding: 40px 32px;
    height: 100%;
}
.testimonial-stars {
    color: #ffc107;
    margin-bottom: 20px;
    font-size: 18px;
}
.testimonial-card p {
    color: var(--text-secondary);
    font-size: 1.05rem;
    line-height: 1.7;
    margin-bottom: 24px;
}
.testimonial-author {
    display: flex;
    align-items: center;
    gap: 12px;
}
.author-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--blue), var(--teal));
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 700;
    font-size: 20px;
}
.author-info strong {
    display: block;
    font-size: 1rem;
}
.author-info span {
    color: var(--text-tertiary);
    font-size: 0.85rem;
}
.swiper-pagination-bullet {
    background: var(--blue) !important;
}
.swiper-button-prev, .swiper-button-next {
    color: var(--blue) !important;
}

/* ===== FAQ ===== */
.faq-section {
    background: var(--bg-gray);
    padding: 100px 0;
}
.faq-list {
    max-width: 800px;
    margin: 0 auto;
}
.faq-item {
    background: var(--white);
    border-radius: var(--radius-md);
    margin-bottom: 16px;
    overflow: hidden;
    border: 1px solid var(--border-light);
    transition: box-shadow 0.3s var(--ease);
}
.faq-item:hover {
    box-shadow: var(--shadow-sm);
}
.faq-item.active {
    box-shadow: var(--shadow-md);
}
.faq-question {
    width: 100%;
    padding: 24px 28px;
    background: none;
    border: none;
    text-align: left;
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--text);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-family: inherit;
}
.faq-icon {
    transition: transform 0.3s var(--ease);
    color: var(--blue);
    flex-shrink: 0;
    margin-left: 16px;
}
.faq-item.active .faq-icon {
    transform: rotate(180deg);
}
.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s var(--ease), padding 0.4s var(--ease);
}
.faq-item.active .faq-answer {
    max-height: 500px;
}
.faq-answer p {
    padding: 0 28px 24px;
    color: var(--text-secondary);
    line-height: 1.7;
}
.faq-answer a {
    color: var(--blue);
    font-weight: 500;
}

/* ===== CTA Section ===== */
.cta-section {
    background: var(--white);
    padding: 100px 0;
}
.cta-box {
    position: relative;
    border-radius: var(--radius-xl);
    overflow: hidden;
    text-align: center;
}
.cta-bg {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, #0071e3 0%, #00c6ff 100%);
}
.cta-bg::before {
    content: '';
    position: absolute;
    inset: 0;
    background:
        radial-gradient(circle at 20% 50%, rgba(255, 255, 255, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 80% 30%, rgba(255, 255, 255, 0.1) 0%, transparent 50%);
}
.cta-content {
    position: relative;
    z-index: 1;
    padding: 80px 40px;
    color: white;
}
.cta-content h2 {
    font-size: clamp(1.8rem, 4vw, 2.8rem);
    font-weight: 800;
    margin-bottom: 16px;
    line-height: 1.2;
}
.cta-content p {
    font-size: 1.15rem;
    opacity: 0.9;
    margin-bottom: 32px;
}
.cta-trust {
    display: flex;
    justify-content: center;
    gap: 32px;
    margin-top: 32px;
    flex-wrap: wrap;
}
.cta-trust span {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    opacity: 0.85;
}

/* ===== Footer ===== */
.footer {
    background: #1d1d1f;
    color: rgba(255, 255, 255, 0.6);
    padding: 80px 0 40px;
}
.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr 1.5fr;
    gap: 40px;
    margin-bottom: 60px;
}
.footer-logo {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 20px;
    font-weight: 700;
    color: white;
    margin-bottom: 20px;
}
.footer-brand p {
    font-size: 0.9rem;
    line-height: 1.7;
    margin-bottom: 24px;
    max-width: 320px;
}
.footer-social {
    display: flex;
    gap: 16px;
}
.footer-social a {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 18px;
    transition: all 0.3s var(--ease);
}
.footer-social a:hover {
    background: var(--blue);
    transform: translateY(-2px);
}
.footer-col h4 {
    color: white;
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 20px;
}
.footer-col ul li {
    margin-bottom: 12px;
}
.footer-col ul li a {
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.9rem;
    transition: color 0.2s var(--ease);
}
.footer-col ul li a:hover {
    color: white;
}
.footer-col ul li i {
    color: rgba(255, 255, 255, 0.4);
    margin-right: 8px;
    width: 16px;
}
.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 32px;
    text-align: center;
}
.footer-bottom p {
    font-size: 0.85rem;
    margin-bottom: 8px;
}
.footer-disclaimer {
    opacity: 0.5;
    font-size: 0.8rem !important;
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
    .nav-links { display: none; }
    .hamburger { display: flex; }

    .features-grid { grid-template-columns: repeat(2, 1fr); }
    .nodes-grid { grid-template-columns: repeat(2, 1fr); }
    .scenes-grid { grid-template-columns: repeat(2, 1fr); }
    .platforms-grid { grid-template-columns: repeat(2, 1fr); }
    .pricing-grid { grid-template-columns: repeat(2, 1fr); }
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
    .stats-grid .stat-item:nth-child(2) { border-right: none; }

    .tech-split { grid-template-columns: 1fr; }
    .download-prompt { grid-template-columns: 1fr; }

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

    .hero-visual { display: none; }
    .hero-content { max-width: 100%; }

    /* Mobile menu */
    .nav-links.active {
        display: flex;
        position: fixed;
        top: 64px;
        left: 0;
        right: 0;
        background: rgba(255, 255, 255, 0.95);
        backdrop-filter: blur(20px);
        flex-direction: column;
        padding: 24px;
        gap: 20px;
        box-shadow: var(--shadow-lg);
        border-bottom: 1px solid var(--border-light);
    }
    .nav-actions { display: none; }
    .nav-actions.active {
        display: flex;
        position: fixed;
        top: 64px;
        right: 0;
        background: rgba(255, 255, 255, 0.95);
        backdrop-filter: blur(20px);
        padding: 16px;
        box-shadow: var(--shadow-lg);
    }
}

@media (max-width: 640px) {
    .container { padding: 0 16px; }

    .features-grid,
    .nodes-grid,
    .scenes-grid,
    .platforms-grid,
    .pricing-grid,
    .stats-grid {
        grid-template-columns: 1fr;
    }
    .stats-grid .stat-item { border-right: none; border-bottom: 1px solid var(--border-light); padding-bottom: 20px; }
    .stats-grid .stat-item:last-child { border-bottom: none; }

    .hero { padding-top: 80px; min-height: 80vh; }
    .hero h1 { font-size: 2rem; }
    .hero p { font-size: 1rem; }
    .hero-cta { flex-direction: column; align-items: center; }
    .hero-cta .btn-primary, .hero-cta .btn-ghost { width: 100%; max-width: 280px; }
    .hero-stats { flex-direction: column; gap: 16px; }

    .footer-grid { grid-template-columns: 1fr; }
    .download-prompt { padding: 24px; }
    .prompt-features { flex-direction: column; }

    .section-header { margin-bottom: 40px; }
    .section-header h2 { font-size: 1.6rem; }

    .cta-trust { flex-direction: column; gap: 12px; }

    .testimonialSwiper { padding: 20px 20px 60px; }
}

/* ===== Reduced Motion ===== */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
    .orb-ring, .orb-node, .map-pulse-dot, .scroll-hint {
        animation: none !important;
    }
}