/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #FF8C42;
    --primary-dark: #E55A2B;
    --secondary-color: #FFB347;
    --accent-color: #FF6347;
    /* 黄色 - 导航栏选中状态 */
    --yellow: #FFD700;
    --yellow-dark: #FFA500;
    --yellow-bright: #FFED4E;
    --text-primary: #ffffff;
    --text-secondary: #a1a1aa;
    --text-light: #71717a;
    --bg-dark: #0a0a0a;
    --bg-darker: #000000;
    --bg-card: #18181b;
    --bg-card-hover: #27272a;
    --border-color: #27272a;
    --border-light: #3f3f46;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.5);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.6);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue', 'Microsoft YaHei', 'PingFang SC', 'Hiragino Sans GB', sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-dark);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Navigation */
.navbar {
    position: sticky;
    top: 0;
    background: rgba(10, 10, 10, 0.8);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
    z-index: 999;
    transition: all 0.3s ease;
}

.navbar.scrolled {
    background: rgba(10, 10, 10, 0.95);
    box-shadow: var(--shadow-md);
}

.nav-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.logo {
    font-size: 20px;
    font-weight: 700;
    color: var(--yellow);
    text-decoration: none;
    transition: all 0.3s ease;
}

.logo:hover {
    transform: scale(1.05);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 32px;
    align-items: center;
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 15px;
    transition: all 0.3s ease;
    position: relative;
    padding: 8px 0;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: width 0.3s ease;
}

.nav-link:hover,
.nav-link.active {
    color: var(--yellow);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
    background: var(--yellow);
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 24px;
}

.btn-primary {
    background: var(--primary-color);
    color: white;
    padding: 10px 20px;
    border-radius: 8px;
    text-decoration: none;
    font-size: 15px;
    font-weight: 500;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    display: inline-block;
}

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(255, 140, 66, 0.4);
}

.btn-primary.large {
    padding: 16px 32px;
    font-size: 16px;
}

.btn-secondary {
    background: transparent;
    color: var(--text-primary);
    padding: 10px 20px;
    border-radius: 8px;
    text-decoration: none;
    font-size: 15px;
    font-weight: 500;
    transition: all 0.3s ease;
    border: 1px solid var(--border-light);
    display: inline-block;
}

.btn-secondary:hover {
    background: var(--bg-card);
    border-color: var(--primary-color);
    transform: translateY(-2px);
}

.btn-secondary.large {
    padding: 16px 32px;
    font-size: 16px;
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.mobile-menu-toggle span {
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    transition: all 0.3s ease;
}

/* Hero Section */
.hero {
    padding: 0 0 80px;
    background: linear-gradient(180deg, var(--bg-dark) 0%, var(--bg-darker) 100%);
    position: relative;
    overflow: hidden;
    min-height: 90vh;
    display: flex;
    align-items: center;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -10%;
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, rgba(255, 140, 66, 0.15) 0%, transparent 70%);
    border-radius: 50%;
    animation: float 20s ease-in-out infinite;
}

.hero::after {
    content: '';
    position: absolute;
    bottom: -30%;
    left: -10%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(255, 179, 71, 0.1) 0%, transparent 70%);
    border-radius: 50%;
    animation: float 25s ease-in-out infinite reverse;
}

@keyframes float {

    0%,
    100% {
        transform: translate(0, 0) rotate(0deg);
    }

    50% {
        transform: translate(30px, -30px) rotate(180deg);
    }
}

.hero-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: start;
    position: relative;
    z-index: 1;
}

.hero-content {
    animation: fadeInUp 0.8s ease-out;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.trusted-by {
    margin-bottom: 32px;
    opacity: 0;
    animation: fadeInUp 0.8s ease-out 0.2s forwards;
}

.trusted-label {
    font-size: 12px;
    color: var(--text-light);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 12px;
    display: block;
}

.trusted-logos {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    align-items: center;
}

.trusted-logos span {
    font-size: 14px;
    color: var(--text-secondary);
    font-weight: 500;
    padding: 4px 12px;
    background: var(--bg-card);
    border-radius: 6px;
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
}

.trusted-logos span:hover {
    background: var(--bg-card-hover);
    border-color: var(--primary-color);
    transform: translateY(-2px);
}

.hero-title {
    font-size: 64px;
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: 24px;
    color: var(--text-primary);
    letter-spacing: -2px;
    opacity: 0;
    animation: fadeInUp 0.8s ease-out 0.4s forwards;
}

.hero-title .title-line {
    display: block;
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--primary-color) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-description {
    font-size: 20px;
    color: var(--text-secondary);
    margin-bottom: 40px;
    line-height: 1.6;
    opacity: 0;
    animation: fadeInUp 0.8s ease-out 0.6s forwards;
}

.hero-options {
    margin-top: 48px;
    opacity: 0;
    animation: fadeInUp 0.8s ease-out 0.8s forwards;
}

.options-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
    flex-wrap: wrap;
    gap: 16px;
}

.options-label {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
}

.options-scale {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    color: var(--text-secondary);
}

.scale-link {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
}

.scale-link:hover {
    color: var(--secondary-color);
    text-decoration: underline;
}

.options-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
}

.option-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 24px;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.option-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    transform: scaleX(0);
    transition: transform 0.4s ease;
}

.option-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.6);
    border-color: var(--primary-color);
    background: var(--bg-card-hover);
}

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

.option-header {
    margin-bottom: 16px;
}

.option-title-group {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 8px;
}

.option-badge {
    font-weight: 600;
    font-size: 16px;
    color: var(--text-primary);
}

.option-label {
    background: var(--primary-color);
    color: white;
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 12px;
    font-weight: 600;
}

.option-desc {
    color: var(--text-secondary);
    font-size: 14px;
    line-height: 1.5;
}

.option-preview {
    width: 100%;
    height: 160px;
    border-radius: 8px;
    margin-bottom: 16px;
    position: relative;
    overflow: hidden;
    background: var(--bg-darker);
}

.image-placeholder {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(255, 140, 66, 0.2) 0%, rgba(255, 179, 71, 0.2) 100%);
    border-radius: 8px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    font-size: 12px;
    text-align: center;
    padding: 20px;
    position: relative;
    transition: all 0.4s ease;
    border: 2px dashed rgba(255, 140, 66, 0.3);
    min-height: 160px;
}

.image-placeholder::before {
    content: '📷';
    font-size: 48px;
    opacity: 0.3;
    margin-bottom: 8px;
}

.image-placeholder img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 8px;
}

.image-placeholder:has(img)::before {
    display: none;
}

.image-placeholder:has(img) {
    background: var(--bg-darker);
    border: none;
    padding: 0;
    display: block;
}

.placeholder-text {
    font-weight: 600;
    margin-bottom: 4px;
    color: var(--text-primary);
    font-size: 14px;
}

.placeholder-size {
    font-size: 11px;
    color: var(--text-secondary);
    font-family: monospace;
}

.option-card:hover .image-placeholder {
    transform: scale(1.05);
    background: linear-gradient(135deg, rgba(255, 140, 66, 0.3) 0%, rgba(255, 179, 71, 0.3) 100%);
}

.option-arrow {
    position: absolute;
    top: 50%;
    right: 16px;
    transform: translateY(-50%);
    font-size: 24px;
    color: white;
    transition: all 0.3s ease;
    opacity: 0;
    z-index: 2;
}

.option-card:hover .option-arrow {
    opacity: 1;
    transform: translateY(-50%) translateX(4px);
}

.option-link {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    font-size: 14px;
    display: inline-block;
    transition: all 0.3s ease;
}

.option-link:hover {
    color: var(--secondary-color);
    transform: translateX(4px);
}

/* Hero Visual - Floating Cards */
.hero-visual {
    position: relative;
    height: 800px;
    opacity: 0;
    animation: fadeInUp 0.8s ease-out 1s forwards;
}

.floating-cards {
    position: relative;
    width: 100%;
    height: 100%;
}

.floating-card {
    position: absolute;
    background: var(--bg-card);
    border-radius: 16px;
    padding: 0;
    box-shadow: var(--shadow-xl);
    border: 1px solid var(--border-color);
    overflow: hidden;
    width: 280px;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.floating-card:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.7);
    border-color: var(--primary-color);
}

.card-1 {
    top: 0;
    left: 0;
    animation: floatCard1 8s ease-in-out infinite;
}

.card-2 {
    top: 120px;
    right: 0;
    animation: floatCard2 10s ease-in-out infinite;
    z-index: 10;
}

.card-3 {
    bottom: 200px;
    left: 40px;
    animation: floatCard3 9s ease-in-out infinite;
    z-index: 5;
}

.card-4 {
    bottom: 0;
    right: 60px;
    animation: floatCard4 11s ease-in-out infinite;
}

@keyframes floatCard1 {

    0%,
    100% {
        transform: translate(0, 0) rotate(0deg);
    }

    50% {
        transform: translate(20px, -20px) rotate(2deg);
    }
}

@keyframes floatCard2 {

    0%,
    100% {
        transform: translate(0, 0) rotate(0deg);
    }

    50% {
        transform: translate(-15px, 15px) rotate(-2deg);
    }
}

@keyframes floatCard3 {

    0%,
    100% {
        transform: translate(0, 0) rotate(0deg);
    }

    50% {
        transform: translate(15px, -15px) rotate(1deg);
    }
}

@keyframes floatCard4 {

    0%,
    100% {
        transform: translate(0, 0) rotate(0deg);
    }

    50% {
        transform: translate(-20px, 20px) rotate(-1deg);
    }
}

.card-image {
    width: 100%;
    height: 160px;
    overflow: hidden;
    background: var(--bg-darker);
}

.card-image .image-placeholder {
    height: 100%;
    border-radius: 0;
}

.card-content {
    padding: 20px;
}

.card-number {
    font-size: 32px;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 8px;
}

.card-label {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 12px;
}

.card-link {
    color: var(--primary-color);
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    transition: all 0.3s ease;
    display: inline-block;
}

.card-link:hover {
    color: var(--secondary-color);
    transform: translateX(4px);
}

/* Features Section */
.features {
    padding: 30px 0 0 0;
    background: var(--bg-darker);
    position: relative;
}

.features .section-title {
    text-align: center;
    font-size: 48px;
    font-weight: 700;
    margin-bottom: 80px;
    color: var(--text-primary);
    letter-spacing: -1px;
    opacity: 0;
    animation: fadeInUp 0.8s ease-out forwards;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.feature-card {
    background: var(--bg-card);
    border-radius: 16px;
    padding: 0;
    border: 1px solid var(--border-color);
    overflow: hidden;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    opacity: 0;
    animation: fadeInUp 0.8s ease-out forwards;
}

.feature-card:nth-child(1) {
    animation-delay: 0.2s;
}

.feature-card:nth-child(2) {
    animation-delay: 0.4s;
}

.feature-card:nth-child(3) {
    animation-delay: 0.6s;
}

.feature-card:hover {
    transform: translateY(-12px);
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.7);
    border-color: var(--primary-color);
}

.feature-image {
    width: 100%;
    height: 240px;
    overflow: hidden;
    background: var(--bg-darker);
}

.feature-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    display: block;
}

.option-preview img,
.card-image img,
.feature-image img,
.tab-image img {
    width: 100% !important;
    height: 100% !important;
    max-width: none !important;
    object-fit: cover !important;
}

.feature-image .image-placeholder {
    height: 100%;
    border-radius: 0;
}

.feature-card h3 {
    font-size: 32px;
    font-weight: 600;
    margin: 24px 24px 24px;
    color: var(--text-primary);
    text-align: center;
}

.feature-card p {
    font-size: 16px;
    color: var(--text-secondary);
    line-height: 1.6;
    margin: 0 24px 24px;
}

.feature-link {
    display: inline-block;
    margin: 0 24px 24px;
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
}

.feature-link:hover {
    color: var(--secondary-color);
    transform: translateX(4px);
}

/* Stats Section */
.stats {
    padding: 120px 0;
    background: var(--bg-dark);
    position: relative;
}

.stats .section-title {
    text-align: center;
    font-size: 48px;
    font-weight: 700;
    margin-bottom: 80px;
    color: var(--text-primary);
    letter-spacing: -1px;
}

.stats-carousel {
    position: relative;
    max-width: 900px;
    margin: 0 auto;
    min-height: 400px;
}

.stat-slide {
    display: none;
    animation: fadeIn 0.6s ease-in-out;
}

.stat-slide.active {
    display: block;
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

.stat-content {
    text-align: center;
    padding: 40px;
}

.stat-number {
    font-size: 72px;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 16px;
}

.stat-label {
    font-size: 20px;
    color: var(--text-secondary);
    margin-bottom: 32px;
}

.stat-quote {
    font-size: 20px;
    line-height: 1.8;
    color: var(--text-primary);
    margin-bottom: 32px;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.stat-author {
    margin-bottom: 24px;
}

.stat-author strong {
    display: block;
    font-size: 18px;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.stat-author span {
    font-size: 14px;
    color: var(--text-secondary);
}

.stat-story-link {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    display: inline-block;
}

.stat-story-link:hover {
    color: var(--secondary-color);
    transform: translateX(4px);
}

.carousel-controls {
    display: flex;
    justify-content: center;
    gap: 16px;
    margin-top: 40px;
}

.carousel-btn {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    font-size: 20px;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.carousel-btn:hover {
    background: var(--bg-card-hover);
    border-color: var(--primary-color);
    transform: scale(1.1);
}

/* Tabs Section */
.tabs-section {
    padding: 120px 0;
    background: var(--bg-darker);
}

.tabs-section .section-title {
    text-align: center;
    font-size: 48px;
    font-weight: 700;
    margin-bottom: 24px;
    color: var(--text-primary);
    letter-spacing: -1px;
}

.tabs-section .section-subtitle {
    text-align: center;
    font-size: 20px;
    color: var(--text-secondary);
    max-width: 800px;
    margin: 0 auto 60px;
    line-height: 1.6;
    display: block;
    width: 100%;
}

.tabs {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-bottom: 60px;
    flex-wrap: wrap;
}

.tab-btn {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    padding: 12px 24px;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    font-family: inherit;
}

.tab-btn:hover {
    background: var(--bg-card-hover);
    color: var(--text-primary);
    border-color: var(--primary-color);
}

.tab-btn.active {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

.tab-content {
    display: none;
    animation: fadeIn 0.4s ease-in-out;
}

.tab-content.active {
    display: block;
}

.tab-content h3 {
    font-size: 32px;
    font-weight: 600;
    margin-bottom: 16px;
    color: var(--text-primary);
    text-align: center;
}

.tab-content p {
    font-size: 18px;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 40px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    text-align: center;
}

.tab-image {
    width: 100%;
    max-width: 1000px;
    margin: 0 auto;
    height: 400px;
    border-radius: 12px;
    overflow: hidden;
    background: var(--bg-card);
}

.tab-image .image-placeholder {
    height: 100%;
    border-radius: 0;
}

/* Services Section */
.services-section {
    padding: 120px 0;
    background: var(--bg-dark);
}

.services-section .section-title {
    text-align: center;
    font-size: 48px;
    font-weight: 700;
    margin-bottom: 0;
    color: var(--text-primary);
    letter-spacing: -1px;
}

.services-section .section-subtitle {
    text-align: center;
    font-size: 20px;
    color: var(--text-secondary);
    margin: 40px auto;
    max-width: 800px;
    line-height: 1.6;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
    margin-top: 40px;
}

.service-card {
    background: var(--bg-card);
    border-radius: 16px;
    padding: 40px;
    text-align: center;
    border: 1px solid var(--border-color);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.6);
    border-color: var(--primary-color);
    background: var(--bg-card-hover);
}

.service-icon {
    width: 200px;
    height: 200px;
    margin: 0 auto 24px;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: hidden;
}

.service-icon img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    object-position: center;
    display: block;
    transform: scale(1.25);
}

.service-title {
    font-size: 32px;
    font-weight: 600;
    margin-bottom: 24px;
    color: var(--text-primary);
    text-align: center;
}

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

/* Roadmap Section */
.roadmap-section {
    padding: 120px 0;
    background: var(--bg-darker);
}

.roadmap-section .section-title {
    text-align: center;
    font-size: 48px;
    font-weight: 700;
    margin-bottom: 80px;
    color: var(--text-primary);
    letter-spacing: -1px;
}

.roadmap-steps {
    max-width: 900px;
    margin: 0 auto;
    position: relative;
}

.roadmap-steps::before {
    content: '';
    position: absolute;
    left: 24px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--border-color);
}

.step-item {
    display: flex;
    gap: 16px;
    margin-bottom: 32px;
    align-items: flex-start;
    position: relative;
    opacity: 0;
    animation: fadeInUp 0.8s ease-out forwards;
}

.step-item:nth-child(1) {
    animation-delay: 0.1s;
}

.step-item:nth-child(2) {
    animation-delay: 0.2s;
}

.step-item:nth-child(3) {
    animation-delay: 0.3s;
}

.step-item:nth-child(4) {
    animation-delay: 0.4s;
}

.step-item:nth-child(5) {
    animation-delay: 0.5s;
}

.step-number {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--primary-color);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    font-weight: 700;
    flex-shrink: 0;
    position: relative;
    z-index: 1;
    box-shadow: 0 4px 12px rgba(255, 140, 66, 0.4);
}

.step-content {
    flex: 1;
    padding-top: 8px;
}

.step-title {
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.step-desc {
    font-size: 16px;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* AI Section */
.ai-section {
    padding: 120px 0;
    background: var(--bg-dark);
    text-align: center;
}

.ai-description {
    font-size: 24px;
    line-height: 1.8;
    color: var(--text-primary);
    max-width: 900px;
    margin: 0 auto 40px;
    text-align: center;
}

.ai-link {
    color: var(--primary-color);
    text-decoration: none;
    font-size: 18px;
    font-weight: 500;
    transition: all 0.3s ease;
    display: inline-block;
}

.ai-link:hover {
    color: var(--secondary-color);
    transform: translateX(4px);
}

/* CTA Section */
.cta-section {
    padding: 120px 0;
    background: linear-gradient(135deg, var(--bg-darker) 0%, var(--bg-dark) 100%);
    text-align: center;
}

.cta-section .section-title {
    font-size: 48px;
    font-weight: 700;
    margin-bottom: 24px;
    color: var(--text-primary);
    letter-spacing: -1px;
}

.cta-section .section-subtitle {
    font-size: 20px;
    color: var(--text-secondary);
    margin-bottom: 40px;
}

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

.btn-blue {
    background: #007bff !important;
    border-color: #007bff !important;
    color: white !important;
}

.btn-blue:hover {
    background: #0056b3 !important;
    border-color: #004085 !important;
    box-shadow: 0 4px 12px rgba(0, 123, 255, 0.4) !important;
}

.btn-green {
    background: #28a745 !important;
    border-color: #28a745 !important;
    color: white !important;
}

.btn-green:hover {
    background: #218838 !important;
    border-color: #1e7e34 !important;
    box-shadow: 0 4px 12px rgba(40, 167, 69, 0.4) !important;
}

/* Footer */
.footer {
    padding: 80px 0 40px;
    background: var(--bg-darker);
    border-top: 1px solid var(--border-color);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 48px;
    margin-bottom: 60px;
}

.footer-section h4 {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 24px;
}

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

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

.footer-section ul li a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 14px;
    transition: all 0.3s ease;
}

.footer-section ul li a:hover {
    color: var(--text-primary);
    transform: translateX(4px);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 40px;
    border-top: 1px solid var(--border-color);
    flex-wrap: wrap;
    gap: 24px;
}

.footer-bottom p {
    color: var(--text-secondary);
    font-size: 14px;
}

.social-links {
    display: flex;
    gap: 24px;
    flex-wrap: wrap;
}

.social-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 14px;
    transition: all 0.3s ease;
}

.social-links a:hover {
    color: var(--primary-color);
}

/* Responsive Design */
@media (max-width: 1024px) {
    .hero-container {
        grid-template-columns: 1fr;
        gap: 60px;
    }

    .hero-visual {
        height: 600px;
    }

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

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

@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }

    .mobile-menu-toggle {
        display: flex;
    }

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

    .hero-description {
        font-size: 18px;
    }

    .section-title {
        font-size: 32px;
    }

    .features-grid,
    .services-grid {
        grid-template-columns: 1fr;
    }

    .service-icon {
        width: 160px;
        height: 160px;
    }

    .service-icon img {
        transform: scale(1.2);
    }

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

    .roadmap-steps::before {
        display: none;
    }

    .step-item {
        flex-direction: column;
        gap: 16px;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 28px;
    }

    .section-title {
        font-size: 28px;
    }

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

/* Scroll Animations */
@media (prefers-reduced-motion: no-preference) {

    .feature-card,
    .service-card,
    .step-item {
        opacity: 0;
        transform: translateY(30px);
        transition: all 0.8s ease-out;
    }

    .feature-card.visible,
    .service-card.visible,
    .step-item.visible {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Media Placeholder Info - 显示图片/视频名称和尺寸 */
.media-placeholder-info {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: rgba(0, 0, 0, 0.85);
    padding: 8px 12px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 12px;
    color: rgba(255, 255, 255, 0.9);
    z-index: 10;
    border-top: 1px solid rgba(255, 140, 66, 0.3);
}

.media-name {
    font-weight: 600;
    color: var(--primary-color);
}

.media-size {
    color: rgba(255, 255, 255, 0.7);
    font-family: monospace;
}

.feature-image-wrapper,
.ghost-content-image,
.example-image,
.trusted-item,
.hero-card,
.hero-video-wrapper,
.option-preview,
.card-image,
.feature-image,
.tab-image {
    position: relative;
}

/* Plans Section Styles - Matching Guide Theme */
.hero-plans {
    padding: 80px 0;
    background: var(--bg-dark);
    position: relative;
    overflow: hidden;
    min-height: auto;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.hero-plans .hero-video-wrapper {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    overflow: hidden;
}

.hero-plans .hero-video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    opacity: 0.4;
    transform: scale(1.1);
    transition: opacity 0.5s ease, transform 0.5s ease;
}

.hero-plans .hero-video-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to bottom, rgba(10, 10, 10, 0.6) 0%, rgba(10, 10, 10, 0.8) 100%);
    z-index: 1;
}

.hero-plans .hero-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
    position: relative;
    z-index: 2;
}

.hero-plans .hero-content {
    text-align: center;
    margin-bottom: 60px;
}

.hero-plans .hero-title {
    font-size: 56px;
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: 24px;
    color: var(--text-primary);
    letter-spacing: -0.02em;
}

.hero-plans .hero-description {
    font-size: 20px;
    color: var(--text-secondary);
    line-height: 1.6;
    max-width: 800px;
    margin: 0 auto;
}

.hero-plans .hero-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-top: 60px;
}

.hero-plans .hero-card {
    position: relative;
    height: 400px;
    border-radius: 16px;
    overflow: hidden;
    cursor: pointer;
    transition: all 0.3s ease;
    border: 2px solid var(--border-color);
    background: var(--bg-card);
}

.hero-plans .hero-card:hover {
    transform: translateY(-8px);
    border-color: var(--primary-color);
    box-shadow: 0 20px 40px rgba(255, 140, 66, 0.3);
}

.hero-plans .hero-card-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    transition: transform 0.5s ease;
}

.hero-plans .hero-card:hover .hero-card-bg {
    transform: scale(1.1);
}

.hero-plans .hero-card-content {
    position: relative;
    z-index: 2;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: 32px;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.8) 0%, transparent 100%);
}

.hero-plans .hero-card-title {
    font-size: 24px;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
}

.hero-plans .hero-card-icon {
    width: 48px;
    height: 48px;
    margin-bottom: 16px;
}

/* Features Plans Section */
.features-plans {
    padding: 100px 0;
    background: var(--bg-dark);
}

.features-plans .features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
    margin-top: 60px;
}

.features-plans .feature-card {
    background: var(--bg-card);
    border-radius: 16px;
    padding: 40px;
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
}

.features-plans .feature-card:hover {
    transform: translateY(-8px);
    border-color: var(--primary-color);
    box-shadow: 0 20px 40px rgba(255, 140, 66, 0.2);
}

.features-plans .feature-card-icon {
    width: 192px;
    height: 192px;
    margin: 0 auto 24px;
    border-radius: 12px;
    overflow: hidden;
    display: flex;
    justify-content: center;
    align-items: center;
}

.features-plans .feature-card-icon img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.features-plans .feature-card h3 {
    font-size: 32px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 24px;
    text-align: center;
}

.features-plans .feature-card p {
    font-size: 16px;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Highlight Section */
.highlight-section {
    padding: 100px 0;
    background: var(--bg-darker);
}

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

.highlight-intro {
    font-size: 20px;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 40px;
}

.highlight-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--primary-color);
    font-size: 18px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
}

.highlight-link:hover {
    color: var(--primary-dark);
    transform: translateX(4px);
}

.link-arrow {
    transition: transform 0.3s ease;
}

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

/* Stats Plans Section */
.stats-plans {
    padding: 100px 0;
    background: var(--bg-dark);
}

.stats-plans .stats-carousel {
    position: relative;
    max-width: 900px;
    margin: 60px auto 0;
}

.stats-plans .stat-slide {
    display: none;
    text-align: center;
}

.stats-plans .stat-slide.active {
    display: block;
    animation: fadeIn 0.5s ease;
}

.stats-plans .stat-content {
    padding: 40px;
}

.stats-plans .stat-number {
    font-size: 64px;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 16px;
}

.stats-plans .stat-label {
    font-size: 24px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 32px;
}

.stats-plans .stat-quote {
    font-size: 18px;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 32px;
    font-style: italic;
}

.stats-plans .stat-author {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-top: 32px;
}

.stats-plans .stat-author strong {
    font-size: 18px;
    color: var(--text-primary);
}

.stats-plans .stat-author span {
    font-size: 14px;
    color: var(--text-secondary);
}

.stats-plans .carousel-controls {
    display: flex;
    justify-content: center;
    gap: 16px;
    margin-top: 40px;
}

.stats-plans .carousel-btn {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    border: 2px solid var(--border-color);
    background: var(--bg-card);
    color: var(--text-primary);
    font-size: 20px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.stats-plans .carousel-btn:hover {
    border-color: var(--primary-color);
    background: var(--primary-color);
    transform: scale(1.1);
}

/* Tabs Section Plans */
.tabs-section-plans {
    padding: 100px 0;
    background: var(--bg-darker);
}

.tabs-section-plans .tabs {
    display: flex;
    justify-content: center;
    gap: 16px;
    margin: 60px 0 40px;
    flex-wrap: wrap;
}

.tabs-section-plans .tab-btn {
    padding: 12px 32px;
    border: 2px solid var(--border-color);
    background: var(--bg-card);
    color: var(--text-secondary);
    border-radius: 8px;
    font-size: 16px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
}

.tabs-section-plans .tab-btn:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.tabs-section-plans .tab-btn.active {
    background: var(--primary-color);
    border-color: var(--primary-color);
    color: var(--text-primary);
}

.tabs-section-plans .tab-content {
    display: none;
    max-width: 900px;
    margin: 0 auto;
    padding: 40px;
    background: var(--bg-card);
    border-radius: 16px;
    border: 1px solid var(--border-color);
}

.tabs-section-plans .tab-content.active {
    display: block;
    animation: fadeIn 0.5s ease;
}

.tabs-section-plans .tab-content h3 {
    font-size: 32px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 24px;
    text-align: center;
}

.tabs-section-plans .tab-content p {
    font-size: 18px;
    color: var(--text-secondary);
    line-height: 1.8;
}

/* Pricing Section */
.pricing-section {
    padding: 100px 0;
    background: var(--bg-dark);
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
    margin-top: 60px;
    align-items: stretch;
}

.pricing-card {
    background: var(--bg-card);
    border-radius: 16px;
    padding: 40px;
    border: 2px solid var(--border-color);
    transition: all 0.3s ease;
    position: relative;
    display: flex;
    flex-direction: column;
    height: 100%;
}

.pricing-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(255, 140, 66, 0.2);
}

.pricing-card.featured {
    border-color: var(--primary-color);
    box-shadow: 0 0 30px rgba(255, 140, 66, 0.3);
}

.pricing-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 32px;
    padding-bottom: 24px;
    border-bottom: 1px solid var(--border-color);
}

.pricing-header h3 {
    font-size: 28px;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
}

.pricing-badge {
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    background: var(--primary-color);
    color: var(--text-primary);
}

.pricing-card.featured .pricing-badge {
    background: var(--primary-dark);
}

.pricing-features {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.pricing-features ul {
    list-style: none;
    padding: 0;
    margin: 0 0 32px 0;
    flex: 1;
}

.pricing-features li {
    padding: 12px 0;
    font-size: 16px;
    color: var(--text-secondary);
    border-bottom: 1px solid var(--border-color);
}

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

.feature-included {
    color: var(--primary-color);
}

.feature-excluded {
    color: var(--text-light);
    opacity: 0.5;
}

.pricing-btn {
    display: block;
    width: 100%;
    padding: 16px;
    background: var(--primary-color);
    color: var(--text-primary);
    text-align: center;
    text-decoration: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    transition: all 0.3s ease;
}

.pricing-btn:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 8px 16px rgba(255, 140, 66, 0.3);
}

/* Guest Card - Grey Theme */
.pricing-card.card-guest .pricing-badge {
    background: #6b7280;
    color: var(--text-primary);
}

.pricing-card.card-guest .pricing-btn {
    background: #6b7280;
    color: var(--text-primary);
}

.pricing-card.card-guest .pricing-btn:hover {
    background: #4b5563;
    box-shadow: 0 8px 16px rgba(107, 114, 128, 0.3);
}

.pricing-card.card-guest .feature-included {
    color: #9ca3af;
}

.pricing-card.card-guest:hover {
    border-color: #6b7280;
    box-shadow: 0 20px 40px rgba(107, 114, 128, 0.2);
}

/* PRO Card - Purple Theme */
.pricing-card.card-pro .pricing-badge {
    background: #9333ea;
    color: var(--text-primary);
}

.pricing-card.card-pro .pricing-btn {
    background: #9333ea;
    color: var(--text-primary);
}

.pricing-card.card-pro .pricing-btn:hover {
    background: #7e22ce;
    box-shadow: 0 8px 16px rgba(147, 51, 234, 0.3);
}

.pricing-card.card-pro .feature-included {
    color: #a855f7;
}

.pricing-card.card-pro:hover {
    border-color: #9333ea;
    box-shadow: 0 20px 40px rgba(147, 51, 234, 0.2);
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Responsive Design for Plans Sections */
@media (max-width: 1024px) {

    .hero-plans .hero-cards,
    .features-plans .features-grid,
    .pricing-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .hero-plans {
        padding: 80px 0;
    }

    .hero-plans .hero-title {
        font-size: 36px;
    }

    .hero-plans .hero-cards,
    .features-plans .features-grid,
    .pricing-grid {
        grid-template-columns: 1fr;
    }

    .tabs-section-plans .tabs {
        flex-direction: column;
    }

    .tabs-section-plans .tab-btn {
        width: 100%;
    }
}