/* ========== 基础样式 ========== */
:root {
    --primary: #6366f1;
    --primary-dark: #4f46e5;
    --primary-light: #818cf8;
    --secondary: #10b981;
    --accent: #f59e0b;
    --dark: #0f172a;
    --dark-light: #1e293b;
    --gray: #64748b;
    --gray-light: #94a3b8;
    --light: #f1f5f9;
    --white: #ffffff;
    --gradient: linear-gradient(135deg, #6366f1 0%, #8b5cf6 50%, #d946ef 100%);
    --gradient-dark: linear-gradient(135deg, #1e293b 0%, #0f172a 100%);
    --shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    --shadow-sm: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --radius: 16px;
    --radius-sm: 8px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--dark);
    color: var(--white);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ========== 导航栏 ========== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(15, 23, 42, 0.8);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    transition: all 0.3s ease;
}

.navbar.scrolled {
    background: rgba(15, 23, 42, 0.95);
    box-shadow: var(--shadow-sm);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--white);
}

.logo i {
    color: var(--primary);
    font-size: 1.8rem;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 20px;
    flex-wrap: nowrap;
    white-space: nowrap;
}

.nav-links a {
    color: var(--gray-light);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.9rem;
    transition: color 0.3s ease;
    position: relative;
    white-space: nowrap;
}

.nav-links a:hover {
    color: var(--white);
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient);
    transition: width 0.3s ease;
}

.nav-links a:hover::after {
    width: 100%;
}

/* 激活授权链接特殊样式 */
.nav-links a.nav-activate {
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
    color: white !important;
    padding: 6px 12px;
    border-radius: 20px;
    font-weight: 600;
    font-size: 0.9rem;
    white-space: nowrap;
}

.nav-links a.nav-activate:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(16, 185, 129, 0.4);
}

.nav-links a.nav-activate::after {
    display: none;
}

.nav-toggle {
    display: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--white);
}

/* ========== 首页横幅 ========== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    padding: 100px 20px;
}

.hero-bg {
    position: absolute;
    inset: 0;
    background: var(--gradient-dark);
}

.hero-bg::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 30% 20%, rgba(99, 102, 241, 0.3) 0%, transparent 50%),
                radial-gradient(circle at 70% 80%, rgba(139, 92, 246, 0.2) 0%, transparent 50%);
}

.particles {
    position: absolute;
    inset: 0;
    overflow: hidden;
}

.hero-content {
    position: relative;
    text-align: center;
    max-width: 800px;
}

.hero-title {
    font-size: clamp(2.5rem, 8vw, 5rem);
    font-weight: 900;
    margin-bottom: 20px;
    letter-spacing: -2px;
}

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

.hero-subtitle {
    font-size: clamp(1.2rem, 3vw, 1.8rem);
    color: var(--gray-light);
    margin-bottom: 15px;
    font-weight: 500;
}

.hero-desc {
    font-size: 1.1rem;
    color: var(--gray);
    margin-bottom: 40px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 60px;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 15px 35px;
    border-radius: 50px;
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: var(--gradient);
    color: var(--white);
    box-shadow: 0 10px 30px rgba(99, 102, 241, 0.4);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 40px rgba(99, 102, 241, 0.5);
}

.btn-secondary {
    background: transparent;
    color: var(--white);
    border: 2px solid rgba(255, 255, 255, 0.3);
}

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

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 60px;
    flex-wrap: wrap;
}

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

.stat-number {
    display: block;
    font-size: 3rem;
    font-weight: 900;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    color: var(--gray);
    font-size: 0.9rem;
}

.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    animation: bounce 2s infinite;
    color: var(--gray);
    font-size: 1.5rem;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: translateX(-50%) translateY(0); }
    40% { transform: translateX(-50%) translateY(-10px); }
    60% { transform: translateX(-50%) translateY(-5px); }
}

/* ========== 通用区块样式 ========== */
section {
    padding: 100px 0;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
}

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

.title-icon {
    width: 50px;
    height: 50px;
    background: var(--gradient);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
}

.section-desc {
    text-align: center;
    color: var(--gray);
    font-size: 1.1rem;
    margin-bottom: 60px;
}

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

/* ========== 功能特性 ========== */
.features {
    background: var(--dark-light);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
}

.feature-card {
    background: linear-gradient(145deg, rgba(30, 41, 59, 0.6), rgba(15, 23, 42, 0.8));
    border-radius: 12px;
    padding: 28px 22px;
    text-align: center;
    transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid rgba(99, 102, 241, 0.08);
    position: relative;
    overflow: hidden;
    backdrop-filter: blur(10px);
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--gradient);
    transform: scaleX(0);
    transition: transform 0.35s ease;
}

.feature-card::after {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 50% 0%, rgba(99, 102, 241, 0.08) 0%, transparent 60%);
    opacity: 0;
    transition: opacity 0.35s ease;
}

.feature-card:hover {
    transform: translateY(-6px);
    border-color: rgba(99, 102, 241, 0.25);
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.25),
                0 0 0 1px rgba(99, 102, 241, 0.1),
                inset 0 1px 0 rgba(255, 255, 255, 0.05);
}

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

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

.feature-icon {
    width: 56px;
    height: 56px;
    background: var(--gradient);
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 18px;
    font-size: 1.4rem;
    color: var(--white);
    transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 8px 20px rgba(99, 102, 241, 0.25);
    position: relative;
    z-index: 1;
}

.feature-card:hover .feature-icon {
    transform: scale(1.08);
    box-shadow: 0 12px 28px rgba(99, 102, 241, 0.35);
}

.feature-card h3 {
    font-size: 1.1rem;
    margin-bottom: 10px;
    color: var(--white);
    font-weight: 600;
    letter-spacing: -0.3px;
}

.feature-card p {
    color: var(--gray);
    line-height: 1.6;
    font-size: 0.9rem;
}

/* ========== 演示视频 ========== */
.demo {
    background: var(--dark);
}

.video-container {
    max-width: 900px;
    margin: 0 auto;
}

.video-wrapper {
    position: relative;
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    background: #000;
}

.video-wrapper video {
    width: 100%;
    display: block;
}

.video-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.4);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: opacity 0.3s ease;
}

.video-overlay.hidden {
    opacity: 0;
    pointer-events: none;
}

.play-button {
    width: 100px;
    height: 100px;
    background: var(--gradient);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    color: var(--white);
    transition: transform 0.3s ease;
    box-shadow: 0 10px 40px rgba(99, 102, 241, 0.5);
}

.play-button i {
    margin-left: 8px;
}

.video-overlay:hover .play-button {
    transform: scale(1.1);
}

/* ========== 界面预览 ========== */
.screenshots {
    background: var(--dark-light);
}

.screenshot-tabs {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-bottom: 40px;
}

.tab-btn {
    padding: 12px 30px;
    border: none;
    background: var(--dark);
    color: var(--gray);
    border-radius: 50px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

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

.tab-btn:hover:not(.active) {
    background: rgba(99, 102, 241, 0.2);
    color: var(--white);
}

.screenshot-gallery {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 25px;
}

.screenshot-gallery.hidden {
    display: none;
}

.screenshot-item {
    border-radius: var(--radius);
    overflow: hidden;
    cursor: pointer;
    transition: transform 0.3s ease;
    background: var(--dark);
}

.screenshot-item:hover {
    transform: scale(1.03);
}

.screenshot-item img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    display: block;
}

.screenshot-caption {
    padding: 15px;
    text-align: center;
    color: var(--gray-light);
    font-weight: 500;
}

/* ========== 部署教程 ========== */
.docs {
    background: var(--dark);
}

.docs-content {
    display: grid;
    grid-template-columns: 250px 1fr;
    gap: 40px;
    background: var(--dark-light);
    border-radius: var(--radius);
    overflow: hidden;
}

.docs-sidebar {
    background: rgba(0, 0, 0, 0.3);
    padding: 30px 0;
}

.docs-nav {
    list-style: none;
}

.docs-nav li {
    padding: 15px 30px;
    color: var(--gray);
    cursor: pointer;
    transition: all 0.3s ease;
    border-left: 3px solid transparent;
}

.docs-nav li:hover {
    color: var(--white);
    background: rgba(99, 102, 241, 0.1);
}

.docs-nav li.active {
    color: var(--white);
    background: rgba(99, 102, 241, 0.2);
    border-left-color: var(--primary);
}

.docs-main {
    padding: 40px;
}

.doc-section {
    display: none;
}

.doc-section.active {
    display: block;
}

.doc-section h3 {
    font-size: 1.8rem;
    margin-bottom: 25px;
    color: var(--white);
}

.doc-section p {
    color: var(--gray-light);
    margin-bottom: 15px;
}

.doc-section ol, .doc-section ul {
    color: var(--gray-light);
    margin-left: 20px;
    margin-bottom: 20px;
}

.doc-section li {
    margin-bottom: 10px;
}

.doc-section code {
    background: rgba(99, 102, 241, 0.2);
    padding: 2px 8px;
    border-radius: 4px;
    color: var(--primary-light);
    font-family: 'Consolas', monospace;
}

.doc-section pre {
    background: var(--dark);
    border-radius: var(--radius-sm);
    padding: 20px;
    overflow-x: auto;
    margin-bottom: 20px;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.doc-section pre code {
    background: none;
    padding: 0;
    color: var(--gray-light);
    font-size: 0.9rem;
    line-height: 1.8;
}

.requirements-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-top: 20px;
}

.req-item {
    background: var(--dark);
    padding: 25px;
    border-radius: var(--radius-sm);
    text-align: center;
}

.req-item i {
    font-size: 2.5rem;
    color: var(--primary);
    margin-bottom: 15px;
}

.req-item h4 {
    color: var(--white);
    margin-bottom: 10px;
}

.req-item p {
    color: var(--gray);
    font-size: 0.9rem;
    margin-bottom: 5px;
}

.tip-box {
    background: rgba(16, 185, 129, 0.1);
    border: 1px solid rgba(16, 185, 129, 0.3);
    border-radius: var(--radius-sm);
    padding: 15px 20px;
    display: flex;
    align-items: flex-start;
    gap: 15px;
    margin-top: 20px;
}

.tip-box i {
    color: var(--secondary);
    font-size: 1.2rem;
    margin-top: 2px;
}

.tip-box p {
    color: var(--secondary);
    margin: 0;
}

.tip-box.warning {
    background: rgba(245, 158, 11, 0.1);
    border-color: rgba(245, 158, 11, 0.3);
}

.tip-box.warning i {
    color: var(--accent);
}

.tip-box.warning p {
    color: var(--accent);
}

.tip-box.warning strong {
    color: #fbbf24;
    font-size: 1.1em;
}

.faq-list {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.faq-item {
    background: var(--dark);
    border-radius: var(--radius-sm);
    overflow: hidden;
}

.faq-question {
    padding: 20px;
    display: flex;
    align-items: center;
    gap: 15px;
    color: var(--white);
    font-weight: 600;
    cursor: pointer;
}

.faq-question i {
    color: var(--primary);
}

.faq-answer {
    padding: 0 20px 20px 55px;
    color: var(--gray);
}

/* ========== 下载区域 ========== */
.download {
    background: var(--gradient-dark);
    position: relative;
}

.download::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 50% 0%, rgba(99, 102, 241, 0.2) 0%, transparent 50%);
}

.download .container {
    position: relative;
}

.download-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 25px;
    margin-bottom: 40px;
}

.download-card {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius);
    padding: 35px 25px;
    text-align: center;
    transition: all 0.3s ease;
}

.download-card:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-5px);
}

.download-icon {
    width: 70px;
    height: 70px;
    background: var(--gradient);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-size: 2rem;
    color: var(--white);
}

.download-card h3 {
    color: var(--white);
    margin-bottom: 10px;
}

.download-card p {
    color: var(--gray);
    font-size: 0.9rem;
    margin-bottom: 10px;
}

.file-size {
    display: block;
    color: var(--gray-light);
    font-size: 0.85rem;
    margin-bottom: 20px;
}

.btn-download {
    background: rgba(255, 255, 255, 0.1);
    color: var(--white);
    padding: 12px 25px;
    border-radius: 50px;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-weight: 600;
    transition: all 0.3s ease;
}

.btn-download:hover {
    background: var(--primary);
}

.download-note {
    background: rgba(245, 158, 11, 0.1);
    border: 1px solid rgba(245, 158, 11, 0.3);
    border-radius: var(--radius-sm);
    padding: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
}

.download-note i {
    color: var(--accent);
    font-size: 1.5rem;
}

.download-note p {
    color: var(--accent);
    margin: 0;
}

/* ========== 联系我们 ========== */
.contact {
    background: var(--dark-light);
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    max-width: 900px;
    margin: 0 auto;
}

.contact-card {
    background: var(--dark);
    border-radius: var(--radius);
    padding: 40px 30px;
    text-align: center;
    transition: all 0.3s ease;
}

.contact-card:hover {
    transform: translateY(-5px);
}

.contact-card i {
    font-size: 3rem;
    color: var(--primary);
    margin-bottom: 20px;
}

.contact-card h3 {
    color: var(--white);
    margin-bottom: 10px;
}

.contact-card p {
    color: var(--gray);
}

.qr-code {
    width: 120px;
    height: 120px;
    margin-top: 15px;
    border-radius: var(--radius-sm);
}

/* ========== 更新日志 ========== */
.changelog {
    padding: 100px 0;
    background: var(--dark-light);
}

.changelog-list {
    max-width: 900px;
    margin: 0 auto;
}

.changelog-item {
    background: var(--dark);
    border-radius: var(--radius);
    padding: 30px;
    margin-bottom: 30px;
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition: all 0.3s ease;
}

.changelog-item:hover {
    border-color: var(--primary);
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(99, 102, 241, 0.1);
}

.changelog-header {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.changelog-version {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--primary);
}

.changelog-date {
    color: var(--gray);
    font-size: 0.95rem;
}

.changelog-badge {
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    background: rgba(99, 102, 241, 0.1);
    color: var(--primary);
}

.changelog-badge.enterprise {
    background: linear-gradient(135deg, rgba(245, 158, 11, 0.2), rgba(217, 70, 239, 0.2));
    color: #fbbf24;
}

.changelog-content h3 {
    color: var(--white);
    font-size: 1.1rem;
    margin: 20px 0 12px 0;
    display: flex;
    align-items: center;
    gap: 8px;
}

.changelog-content h3:first-child {
    margin-top: 0;
}

.changelog-content ul {
    list-style: none;
    padding: 0;
}

.changelog-content li {
    color: var(--gray-light);
    padding: 8px 0;
    padding-left: 25px;
    position: relative;
    line-height: 1.6;
}

.changelog-content li:before {
    content: "•";
    position: absolute;
    left: 8px;
    color: var(--primary);
    font-weight: bold;
}

.changelog-content strong {
    color: var(--white);
    font-weight: 600;
}

/* ========== 页脚 ========== */
.footer {
    background: var(--dark);
    padding: 60px 0 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-content {
    text-align: center;
    margin-bottom: 30px;
}

.footer-logo {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 15px;
}

.footer-logo i {
    color: var(--primary);
}

.footer-desc {
    color: var(--gray);
    margin-bottom: 25px;
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 30px;
    flex-wrap: wrap;
}

.footer-links a {
    color: var(--gray);
    text-decoration: none;
    transition: color 0.3s ease;
}

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

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-bottom p {
    color: var(--gray);
    font-size: 0.9rem;
}

/* ========== 回到顶部 ========== */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: var(--gradient);
    border: none;
    border-radius: 50%;
    color: var(--white);
    font-size: 1.2rem;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    box-shadow: 0 5px 20px rgba(99, 102, 241, 0.4);
    z-index: 999;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    transform: translateY(-5px);
}

/* ========== 图片灯箱 ========== */
.lightbox {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.95);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.lightbox.active {
    opacity: 1;
    visibility: visible;
}

.lightbox img {
    max-width: 90%;
    max-height: 90vh;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}

.lightbox-close {
    position: absolute;
    top: 20px;
    right: 20px;
    width: 50px;
    height: 50px;
    background: rgba(255, 255, 255, 0.1);
    border: none;
    border-radius: 50%;
    color: var(--white);
    font-size: 1.5rem;
    cursor: pointer;
    transition: all 0.3s ease;
}

.lightbox-close:hover {
    background: rgba(255, 255, 255, 0.2);
}

/* ========== 响应式设计 ========== */

/* 平板横屏 (1024px - 1200px) */
@media (max-width: 1200px) {
    .container {
        padding: 0 30px;
    }
    
    .features-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 18px;
    }
    
    .feature-card {
        padding: 24px 18px;
    }
}

/* 平板竖屏 (768px - 1024px) */
@media (max-width: 1024px) {
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
    }
    
    .feature-card {
        padding: 22px 16px;
    }
    
    .feature-icon {
        width: 50px;
        height: 50px;
        font-size: 1.2rem;
        border-radius: 12px;
    }
    
    .feature-card h3 {
        font-size: 1rem;
    }
    
    .feature-card p {
        font-size: 0.85rem;
    }
}

@media (max-width: 992px) {
    .docs-content {
        grid-template-columns: 1fr;
    }
    
    .docs-sidebar {
        padding: 20px;
    }
    
    .docs-nav {
        display: flex;
        flex-wrap: wrap;
        gap: 10px;
    }
    
    .docs-nav li {
        padding: 10px 20px;
        border-radius: 50px;
        border-left: none;
        font-size: 0.9rem;
    }
    
    .docs-nav li.active {
        border-left: none;
    }
    
    .screenshot-gallery {
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
    }
    
    .download-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }
}

/* 大手机 / 小平板 (576px - 768px) */
@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background: var(--dark);
        flex-direction: column;
        padding: 20px;
        gap: 0;
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: all 0.3s ease;
    }
    
    .nav-links.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }
    
    .nav-links li {
        padding: 15px 0;
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }
    
    .nav-toggle {
        display: block;
    }
    
    .hero {
        padding: 80px 15px;
        min-height: auto;
    }
    
    .hero-title {
        font-size: 2.2rem;
        letter-spacing: -1px;
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
    }
    
    .hero-desc {
        font-size: 0.95rem;
        padding: 0 10px;
    }
    
    .hero-stats {
        gap: 25px;
    }
    
    .stat-number {
        font-size: 2rem;
    }
    
    .stat-label {
        font-size: 0.8rem;
    }
    
    section {
        padding: 50px 0;
    }
    
    .section-title {
        font-size: 1.6rem;
        flex-direction: column;
        gap: 12px;
    }
    
    .title-icon {
        width: 42px;
        height: 42px;
        font-size: 1.1rem;
    }
    
    .section-desc {
        font-size: 0.95rem;
        margin-bottom: 35px;
        padding: 0 10px;
    }
    
    /* 功能卡片 - 平板 */
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 14px;
    }
    
    .feature-category {
        margin-top: 30px;
        margin-bottom: 16px;
    }
    
    .category-title {
        font-size: 1rem;
        gap: 8px;
        padding-bottom: 10px;
    }
    
    .category-title i {
        font-size: 0.9rem;
    }
    
    .hot-tag, .new-tag {
        font-size: 0.5rem;
        padding: 2px 6px;
    }
    
    .feature-card {
        padding: 20px 14px;
        border-radius: 10px;
    }
    
    .feature-icon {
        width: 46px;
        height: 46px;
        font-size: 1.1rem;
        border-radius: 11px;
        margin-bottom: 14px;
    }
    
    .feature-card h3 {
        font-size: 0.95rem;
        margin-bottom: 8px;
    }
    
    .feature-card p {
        font-size: 0.8rem;
        line-height: 1.5;
    }
    
    .feature-more {
        font-size: 0.75rem;
        margin-top: 10px;
    }
    
    /* 截图预览 */
    .screenshot-tabs {
        gap: 10px;
        margin-bottom: 25px;
    }
    
    .tab-btn {
        padding: 10px 20px;
        font-size: 0.9rem;
    }
    
    .screenshot-gallery {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }
    
    .screenshot-item img {
        height: 140px;
    }
    
    .screenshot-caption {
        padding: 10px;
        font-size: 0.85rem;
    }
    
    /* 文档区域 */
    .docs-main {
        padding: 20px;
    }
    
    .doc-section h3 {
        font-size: 1.4rem;
    }
    
    .doc-section pre {
        font-size: 0.75rem;
        padding: 15px;
    }
    
    .requirements-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }
    
    .req-item {
        padding: 18px 12px;
    }
    
    .req-item i {
        font-size: 2rem;
    }
    
    .req-item h4 {
        font-size: 0.95rem;
    }
    
    .req-item p {
        font-size: 0.8rem;
    }
    
    /* 下载区域 */
    .download-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 15px;
    }
    
    .download-card {
        padding: 25px 18px;
    }
    
    .download-icon {
        width: 55px;
        height: 55px;
        font-size: 1.5rem;
    }
    
    .download-card h3 {
        font-size: 1rem;
    }
    
    .download-card p {
        font-size: 0.8rem;
    }
    
    /* 联系区域 */
    .contact-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 15px;
    }
    
    .contact-card {
        padding: 30px 20px;
    }
    
    .contact-card i {
        font-size: 2.2rem;
    }
    
    /* 弹窗 */
    .modal-content {
        padding: 35px 25px;
        margin: 15px;
    }
    
    .modal-icon {
        width: 60px;
        height: 60px;
        font-size: 1.5rem;
    }
    
    .modal-title {
        font-size: 1.4rem;
    }
    
    /* 视频 */
    .play-button {
        width: 70px;
        height: 70px;
        font-size: 1.8rem;
    }
}

/* 手机 (小于 576px) */
@media (max-width: 576px) {
    .container {
        padding: 0 15px;
    }
    
    .nav-container {
        height: 60px;
    }
    
    .logo {
        font-size: 1.2rem;
    }
    
    .logo i {
        font-size: 1.4rem;
    }
    
    .hero {
        padding: 70px 15px 50px;
    }
    
    .hero-title {
        font-size: 1.8rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .hero-desc {
        font-size: 0.9rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
        gap: 12px;
        margin-bottom: 40px;
    }
    
    .btn {
        width: 100%;
        max-width: 260px;
        justify-content: center;
        padding: 12px 25px;
        font-size: 0.9rem;
    }
    
    .hero-stats {
        gap: 20px;
    }
    
    .stat-number {
        font-size: 1.8rem;
    }
    
    section {
        padding: 40px 0;
    }
    
    .section-title {
        font-size: 1.4rem;
    }
    
    .section-desc {
        font-size: 0.9rem;
        margin-bottom: 30px;
    }
    
    .click-hint {
        display: block;
        margin-top: 5px;
        font-size: 0.75rem;
    }
    
    /* 功能卡片 - 手机单列 */
    .features-grid {
        grid-template-columns: 1fr;
        gap: 12px;
    }
    
    .feature-category {
        margin-top: 25px;
        margin-bottom: 14px;
    }
    
    .category-title {
        font-size: 0.95rem;
    }
    
    .feature-card {
        padding: 18px 16px;
        display: flex;
        flex-direction: row;
        align-items: center;
        text-align: left;
        gap: 14px;
    }
    
    .feature-card::after {
        display: none;
    }
    
    .feature-icon {
        width: 44px;
        height: 44px;
        min-width: 44px;
        font-size: 1rem;
        border-radius: 10px;
        margin: 0;
        flex-shrink: 0;
    }
    
    .feature-card > *:not(.feature-icon):not(h3):not(p):not(.feature-more) {
        display: none;
    }
    
    .feature-card h3 {
        font-size: 0.9rem;
        margin-bottom: 4px;
    }
    
    .feature-card p {
        font-size: 0.78rem;
        line-height: 1.4;
        display: -webkit-box;
        -webkit-line-clamp: 2;
        -webkit-box-orient: vertical;
        overflow: hidden;
    }
    
    .feature-more {
        display: none;
    }
    
    /* 截图预览 - 手机 */
    .screenshot-tabs {
        flex-wrap: wrap;
        gap: 8px;
    }
    
    .tab-btn {
        padding: 8px 16px;
        font-size: 0.85rem;
        flex: 1;
        min-width: 100px;
    }
    
    .screenshot-gallery {
        grid-template-columns: 1fr;
        gap: 12px;
    }
    
    .screenshot-item img {
        height: 180px;
    }
    
    .screenshot-caption {
        padding: 12px;
        font-size: 0.9rem;
    }
    
    /* 文档区域 - 手机 */
    .docs-nav {
        gap: 8px;
    }
    
    .docs-nav li {
        padding: 8px 14px;
        font-size: 0.8rem;
    }
    
    .docs-main {
        padding: 18px;
    }
    
    .doc-section h3 {
        font-size: 1.2rem;
        margin-bottom: 18px;
    }
    
    .doc-section p {
        font-size: 0.9rem;
    }
    
    .doc-section pre {
        padding: 12px;
        font-size: 0.7rem;
        border-radius: 8px;
    }
    
    .requirements-grid {
        grid-template-columns: 1fr 1fr;
        gap: 10px;
    }
    
    .req-item {
        padding: 15px 10px;
    }
    
    .req-item i {
        font-size: 1.6rem;
        margin-bottom: 10px;
    }
    
    .req-item h4 {
        font-size: 0.85rem;
    }
    
    .req-item p {
        font-size: 0.75rem;
    }
    
    .faq-question {
        padding: 15px;
        font-size: 0.9rem;
    }
    
    .faq-answer {
        padding: 0 15px 15px 40px;
        font-size: 0.85rem;
    }
    
    /* 下载区域 - 手机 */
    .download-grid {
        grid-template-columns: 1fr;
        gap: 12px;
    }
    
    .download-card {
        padding: 22px 18px;
        display: flex;
        flex-direction: row;
        align-items: center;
        text-align: left;
        gap: 15px;
    }
    
    .download-icon {
        width: 50px;
        height: 50px;
        min-width: 50px;
        font-size: 1.3rem;
        margin: 0;
        border-radius: 12px;
        flex-shrink: 0;
    }
    
    .download-card h3 {
        font-size: 0.95rem;
        margin-bottom: 4px;
    }
    
    .download-card p {
        font-size: 0.78rem;
        margin-bottom: 4px;
    }
    
    .file-size {
        font-size: 0.75rem;
        margin-bottom: 8px;
    }
    
    .btn-download {
        padding: 10px 18px;
        font-size: 0.8rem;
        white-space: nowrap;
    }
    
    .download-note {
        padding: 15px;
        flex-direction: column;
        text-align: center;
        gap: 10px;
    }
    
    .download-note i {
        font-size: 1.2rem;
    }
    
    .download-note p {
        font-size: 0.85rem;
    }
    
    /* 联系区域 - 手机 */
    .contact-grid {
        grid-template-columns: 1fr;
        gap: 12px;
    }
    
    .contact-card {
        padding: 25px 20px;
        display: flex;
        align-items: center;
        gap: 15px;
        text-align: left;
    }
    
    .contact-card i {
        font-size: 1.8rem;
        margin: 0;
        min-width: 40px;
    }
    
    .contact-card h3 {
        font-size: 0.95rem;
        margin-bottom: 2px;
    }
    
    .contact-card p {
        font-size: 0.85rem;
    }
    
    /* 弹窗 - 手机 */
    .modal-content {
        padding: 30px 20px;
        margin: 10px;
        max-height: 90vh;
    }
    
    .modal-close {
        top: 12px;
        right: 12px;
        width: 35px;
        height: 35px;
        font-size: 1rem;
    }
    
    .modal-icon {
        width: 50px;
        height: 50px;
        font-size: 1.3rem;
        border-radius: 14px;
        margin-bottom: 18px;
    }
    
    .modal-title {
        font-size: 1.2rem;
        margin-bottom: 20px;
    }
    
    .modal-body {
        font-size: 0.9rem;
        line-height: 1.7;
    }
    
    .modal-body h4 {
        font-size: 1rem;
        margin: 20px 0 10px;
    }
    
    /* 视频 - 手机 */
    .play-button {
        width: 60px;
        height: 60px;
        font-size: 1.5rem;
    }
    
    /* 页脚 - 手机 */
    .footer {
        padding: 40px 0 20px;
    }
    
    .footer-logo {
        font-size: 1.2rem;
    }
    
    .footer-desc {
        font-size: 0.9rem;
    }
    
    .footer-links {
        gap: 15px;
        font-size: 0.85rem;
    }
    
    .footer-bottom p {
        font-size: 0.8rem;
    }
    
    /* 回到顶部 - 手机 */
    .back-to-top {
        width: 42px;
        height: 42px;
        bottom: 20px;
        right: 20px;
        font-size: 1rem;
    }
    
    /* 灯箱 - 手机 */
    .lightbox-close {
        top: 15px;
        right: 15px;
        width: 40px;
        height: 40px;
    }
}

/* 超小屏幕 (小于 380px) */
@media (max-width: 380px) {
    .hero-title {
        font-size: 1.6rem;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: 15px;
    }
    
    .stat-item {
        display: flex;
        align-items: center;
        gap: 8px;
    }
    
    .stat-number {
        font-size: 1.5rem;
    }
    
    .requirements-grid {
        grid-template-columns: 1fr;
    }
    
    .feature-card {
        padding: 16px 14px;
    }
    
    .feature-icon {
        width: 40px;
        height: 40px;
        min-width: 40px;
        font-size: 0.9rem;
    }
}

/* ========== 动画效果 ========== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.feature-card {
    animation: fadeInUp 0.5s ease forwards;
    opacity: 0;
}

.feature-card:nth-child(1) { animation-delay: 0.05s; }
.feature-card:nth-child(2) { animation-delay: 0.1s; }
.feature-card:nth-child(3) { animation-delay: 0.15s; }
.feature-card:nth-child(4) { animation-delay: 0.2s; }
.feature-card:nth-child(5) { animation-delay: 0.25s; }
.feature-card:nth-child(6) { animation-delay: 0.3s; }

/* 粒子动画 */
.particle {
    position: absolute;
    width: 4px;
    height: 4px;
    background: var(--primary);
    border-radius: 50%;
    opacity: 0.5;
    animation: float 15s infinite;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0) translateX(0);
        opacity: 0;
    }
    10% {
        opacity: 0.5;
    }
    90% {
        opacity: 0.5;
    }
    100% {
        transform: translateY(-100vh) translateX(100px);
        opacity: 0;
    }
}


/* ========== 功能分类标题 ========== */
.feature-category {
    margin-top: 40px;
    margin-bottom: 20px;
}

.feature-category:first-of-type {
    margin-top: 0;
}

.category-title {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.15rem;
    color: var(--white);
    padding-bottom: 12px;
    border-bottom: 1px solid rgba(99, 102, 241, 0.2);
    font-weight: 600;
}

.category-title i {
    color: var(--primary);
    font-size: 1rem;
}

.hot-tag {
    background: linear-gradient(135deg, #f59e0b, #ef4444);
    color: white;
    font-size: 0.6rem;
    padding: 2px 8px;
    border-radius: 10px;
    font-weight: 600;
    margin-left: 8px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.new-tag {
    background: linear-gradient(135deg, #10b981, #06b6d4);
    color: white;
    font-size: 0.55rem;
    padding: 2px 6px;
    border-radius: 8px;
    font-weight: 600;
    margin-left: 6px;
    vertical-align: middle;
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

.click-hint {
    font-size: 0.8rem;
    color: var(--primary-light);
    opacity: 0.7;
}

/* ========== 特色功能卡片 ========== */
.feature-card.featured {
    border: 1px solid rgba(99, 102, 241, 0.2);
    background: linear-gradient(145deg, rgba(99, 102, 241, 0.08), rgba(139, 92, 246, 0.04));
}

.feature-card.featured::before {
    transform: scaleX(1);
    background: linear-gradient(90deg, var(--primary), var(--primary-light));
    height: 2px;
}

.feature-icon.highlight {
    background: linear-gradient(135deg, #f59e0b, #ef4444);
    box-shadow: 0 8px 20px rgba(245, 158, 11, 0.25);
}

.feature-card:hover .feature-icon.highlight {
    box-shadow: 0 12px 28px rgba(245, 158, 11, 0.35);
}

.feature-more {
    display: block;
    margin-top: 12px;
    color: var(--primary-light);
    font-size: 0.8rem;
    opacity: 0;
    transform: translateY(8px);
    transition: all 0.3s ease;
}

.feature-more i {
    margin-left: 4px;
    font-size: 0.7rem;
    transition: transform 0.3s ease;
}

.feature-card:hover .feature-more {
    opacity: 1;
    transform: translateY(0);
}

.feature-card:hover .feature-more i {
    transform: translateX(4px);
}

/* ========== 功能详情弹窗 ========== */
.feature-modal {
    position: fixed;
    inset: 0;
    z-index: 3000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.feature-modal.active {
    opacity: 1;
    visibility: visible;
}

.modal-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.85);
    backdrop-filter: blur(10px);
}

.modal-content {
    position: relative;
    background: var(--dark-light);
    border-radius: var(--radius);
    padding: 50px;
    max-width: 650px;
    width: 90%;
    max-height: 85vh;
    overflow-y: auto;
    transform: scale(0.9) translateY(20px);
    transition: transform 0.3s ease;
    border: 1px solid rgba(99, 102, 241, 0.2);
    box-shadow: 0 25px 80px rgba(0, 0, 0, 0.5);
}

.feature-modal.active .modal-content {
    transform: scale(1) translateY(0);
}

.modal-close {
    position: absolute;
    top: 20px;
    right: 20px;
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border: none;
    border-radius: 50%;
    color: var(--gray);
    font-size: 1.2rem;
    cursor: pointer;
    transition: all 0.3s ease;
}

.modal-close:hover {
    background: rgba(255, 255, 255, 0.2);
    color: var(--white);
}

.modal-icon {
    width: 80px;
    height: 80px;
    background: var(--gradient);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: var(--white);
    margin: 0 auto 25px;
}

.modal-icon.highlight {
    background: linear-gradient(135deg, #f59e0b, #ef4444);
}

.modal-title {
    text-align: center;
    font-size: 1.8rem;
    color: var(--white);
    margin-bottom: 30px;
}

.modal-body {
    color: var(--gray-light);
    line-height: 1.8;
}

.modal-body h4 {
    color: var(--white);
    font-size: 1.1rem;
    margin: 25px 0 12px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.modal-body h4 i {
    color: var(--primary);
    font-size: 0.9rem;
}

.modal-body p {
    margin-bottom: 12px;
}

.modal-body ul {
    margin: 10px 0 15px 20px;
}

.modal-body li {
    margin-bottom: 8px;
    position: relative;
}

.modal-body li::marker {
    color: var(--primary);
}

.modal-body .highlight-box {
    background: rgba(99, 102, 241, 0.1);
    border: 1px solid rgba(99, 102, 241, 0.3);
    border-radius: var(--radius-sm);
    padding: 15px 20px;
    margin: 20px 0;
}

.modal-body .highlight-box.warning {
    background: rgba(245, 158, 11, 0.1);
    border-color: rgba(245, 158, 11, 0.3);
}

.modal-body .highlight-box p {
    margin: 0;
    color: var(--primary-light);
}

.modal-body .highlight-box.warning p {
    color: var(--accent);
}

.modal-body code {
    background: rgba(99, 102, 241, 0.2);
    padding: 2px 8px;
    border-radius: 4px;
    color: var(--primary-light);
    font-family: 'Consolas', monospace;
    font-size: 0.9rem;
}

/* 滚动条美化 */
.modal-content::-webkit-scrollbar {
    width: 6px;
}

.modal-content::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 3px;
}

.modal-content::-webkit-scrollbar-thumb {
    background: var(--primary);
    border-radius: 3px;
}


/* ========== 设备标签 ========== */
.hero-devices {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 12px;
    margin: 20px 0 30px;
}

.device-tag {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 20px;
    font-size: 0.9rem;
    color: var(--gray-light);
    transition: all 0.3s ease;
}

.device-tag:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateY(-2px);
}

.device-tag.highlight {
    background: var(--gradient);
    border-color: transparent;
    color: var(--white);
    font-weight: 500;
}

.device-tag i {
    font-size: 1rem;
}

/* ========== 版本对比 ========== */
.pricing {
    padding: 100px 0;
    background: var(--dark-light);
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
    max-width: 900px;
    margin: 0 auto;
}

.pricing-card {
    background: var(--dark);
    border-radius: var(--radius);
    padding: 40px 30px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
}

.pricing-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary);
}

.pricing-card.featured {
    border-color: var(--primary);
    background: linear-gradient(180deg, rgba(99, 102, 241, 0.1) 0%, var(--dark) 100%);
    position: relative;
}

.pricing-card.featured::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient);
    border-radius: var(--radius) var(--radius) 0 0;
}

.pricing-header {
    text-align: center;
    margin-bottom: 30px;
    position: relative;
}

.pricing-header h3 {
    font-size: 1.8rem;
    margin-bottom: 10px;
}

.pricing-badge {
    display: inline-block;
    padding: 4px 12px;
    background: rgba(99, 102, 241, 0.2);
    color: var(--primary-light);
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 500;
}

.pricing-badge.hot {
    background: rgba(239, 68, 68, 0.2);
    color: #f87171;
}

.pricing-features {
    flex: 1;
    margin-bottom: 30px;
}

.pricing-features .feature-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

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

.pricing-features .feature-item.included i {
    color: var(--secondary);
}

.pricing-features .feature-item.excluded i {
    color: var(--gray);
}

.pricing-features .feature-item.excluded span {
    color: var(--gray);
    text-decoration: line-through;
}

.pricing-features .feature-item.highlight {
    background: rgba(99, 102, 241, 0.1);
    margin: 0 -15px;
    padding: 12px 15px;
    border-radius: var(--radius-sm);
}

.pricing-features .feature-item.highlight span {
    font-weight: 500;
    color: var(--primary-light);
}

.pricing-card .btn {
    width: 100%;
    text-align: center;
}

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

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

.pricing-note {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    max-width: 700px;
    margin: 40px auto 0;
    padding: 20px;
    background: rgba(99, 102, 241, 0.1);
    border-radius: var(--radius-sm);
    border-left: 3px solid var(--primary);
}

.pricing-note i {
    color: var(--primary);
    font-size: 1.2rem;
    margin-top: 2px;
}

.pricing-note p {
    color: var(--gray-light);
    font-size: 0.95rem;
    line-height: 1.6;
}

/* ========== OSS 配置样式 ========== */
.oss-steps {
    margin: 20px 0;
    padding: 20px;
    background: rgba(255, 255, 255, 0.03);
    border-radius: var(--radius-sm);
}

.oss-steps h4 {
    margin-bottom: 15px;
    color: var(--primary-light);
}

.oss-steps ol {
    padding-left: 20px;
}

.oss-steps li {
    margin-bottom: 10px;
    color: var(--gray-light);
}

.oss-steps a {
    color: var(--primary-light);
    text-decoration: none;
}

.oss-steps a:hover {
    text-decoration: underline;
}

/* ========== 响应式 - 版本对比 ========== */
@media (max-width: 768px) {
    .pricing-grid {
        grid-template-columns: 1fr;
    }
    
    .hero-devices {
        gap: 8px;
    }
    
    .device-tag {
        padding: 6px 12px;
        font-size: 0.8rem;
    }
}


/* ========== 企业版专属样式 ========== */
.enterprise-tag {
    display: inline-block;
    padding: 2px 10px;
    background: linear-gradient(135deg, #f59e0b 0%, #ef4444 100%);
    color: var(--white);
    border-radius: 12px;
    font-size: 0.7rem;
    font-weight: 600;
    margin-left: 8px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.feature-card.enterprise {
    border-color: var(--accent);
    background: linear-gradient(180deg, rgba(245, 158, 11, 0.1) 0%, var(--dark) 100%);
    position: relative;
}

.feature-card.enterprise::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, #f59e0b 0%, #ef4444 100%);
    border-radius: var(--radius) var(--radius) 0 0;
}

.feature-card.enterprise:hover {
    border-color: #f59e0b;
    box-shadow: 0 10px 40px rgba(245, 158, 11, 0.2);
}

.highlight-box.enterprise {
    background: linear-gradient(135deg, rgba(245, 158, 11, 0.15) 0%, rgba(239, 68, 68, 0.15) 100%);
    border-left-color: #f59e0b;
}

.highlight-box.enterprise i {
    color: #f59e0b;
}

/* ========== 企业版截图样式 ========== */
.screenshot-item.enterprise-feature {
    position: relative;
    border: 2px solid var(--accent);
    background: linear-gradient(180deg, rgba(245, 158, 11, 0.1) 0%, var(--dark) 100%);
}

.screenshot-item.enterprise-feature::before {
    content: '企业版';
    position: absolute;
    top: 10px;
    right: 10px;
    background: linear-gradient(135deg, #f59e0b 0%, #ef4444 100%);
    color: white;
    padding: 4px 10px;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 600;
    z-index: 10;
}

.screenshot-caption .enterprise-badge {
    display: inline-block;
    background: linear-gradient(135deg, #f59e0b 0%, #ef4444 100%);
    color: white;
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 0.7rem;
    font-weight: 600;
    margin-left: 6px;
    vertical-align: middle;
}


/* ========== 酒店版专属样式 ========== */
.hotel-tag {
    display: inline-block;
    padding: 2px 10px;
    background: linear-gradient(135deg, #06b6d4 0%, #8b5cf6 100%);
    color: var(--white);
    border-radius: 12px;
    font-size: 0.7rem;
    font-weight: 600;
    margin-left: 8px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.feature-card.hotel {
    border-color: #06b6d4;
    background: linear-gradient(180deg, rgba(6, 182, 212, 0.1) 0%, var(--dark) 100%);
    position: relative;
}

.feature-card.hotel::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, #06b6d4 0%, #8b5cf6 100%);
    border-radius: var(--radius) var(--radius) 0 0;
}

.feature-card.hotel:hover {
    border-color: #06b6d4;
    box-shadow: 0 10px 40px rgba(6, 182, 212, 0.2);
}

.pricing-card.hotel {
    border-color: #06b6d4;
    background: linear-gradient(180deg, rgba(6, 182, 212, 0.15) 0%, var(--dark-light) 100%);
    position: relative;
}

.pricing-card.hotel::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #06b6d4 0%, #8b5cf6 100%);
    border-radius: var(--radius) var(--radius) 0 0;
}

.pricing-card.hotel .pricing-header h3 {
    background: linear-gradient(135deg, #06b6d4 0%, #8b5cf6 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.pricing-badge.new {
    background: linear-gradient(135deg, #06b6d4 0%, #8b5cf6 100%);
}

.highlight-box.hotel {
    background: linear-gradient(135deg, rgba(6, 182, 212, 0.15) 0%, rgba(139, 92, 246, 0.15) 100%);
    border-left-color: #06b6d4;
}

.highlight-box.hotel i {
    color: #06b6d4;
}

/* ========== 增强响应式 - 版本对比手机端优化 ========== */
@media (max-width: 768px) {
    .pricing {
        padding: 60px 0;
    }
    
    .pricing-grid {
        grid-template-columns: 1fr;
        gap: 20px;
        max-width: 100%;
    }
    
    .pricing-card {
        padding: 25px 20px;
        border-radius: 12px;
    }
    
    .pricing-header {
        margin-bottom: 20px;
    }
    
    .pricing-header h3 {
        font-size: 1.4rem;
    }
    
    .pricing-badge {
        font-size: 0.7rem;
        padding: 3px 10px;
    }
    
    .pricing-features .feature-item {
        padding: 10px 0;
        gap: 10px;
        font-size: 0.9rem;
    }
    
    .pricing-features .feature-item i {
        font-size: 0.85rem;
        min-width: 18px;
    }
    
    .pricing-features .feature-item.highlight {
        margin: 0 -12px;
        padding: 10px 12px;
    }
    
    .pricing-card .btn {
        padding: 12px 20px;
        font-size: 0.9rem;
    }
    
    .pricing-note {
        padding: 15px;
        margin-top: 25px;
        flex-direction: column;
        text-align: center;
        gap: 10px;
    }
    
    .pricing-note i {
        font-size: 1.1rem;
    }
    
    .pricing-note p {
        font-size: 0.85rem;
    }
}

@media (max-width: 576px) {
    .pricing {
        padding: 45px 0;
    }
    
    .pricing-grid {
        gap: 15px;
    }
    
    .pricing-card {
        padding: 20px 16px;
    }
    
    .pricing-header h3 {
        font-size: 1.25rem;
    }
    
    .pricing-features .feature-item {
        padding: 8px 0;
        font-size: 0.85rem;
    }
    
    .pricing-features .feature-item.highlight {
        margin: 0 -10px;
        padding: 8px 10px;
        border-radius: 6px;
    }
    
    .pricing-card .btn {
        padding: 11px 18px;
        font-size: 0.85rem;
    }
}

/* ========== 增强响应式 - 导航栏手机端优化 ========== */
@media (max-width: 768px) {
    .nav-links {
        max-height: calc(100vh - 70px);
        overflow-y: auto;
    }
    
    .nav-links a {
        font-size: 1rem;
        display: block;
        padding: 5px 0;
    }
    
    .nav-links a::after {
        display: none;
    }
}

/* ========== 增强响应式 - 平板端优化 ========== */
@media (min-width: 577px) and (max-width: 992px) {
    .pricing-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }
    
    .pricing-card {
        padding: 30px 22px;
    }
    
    .pricing-header h3 {
        font-size: 1.5rem;
    }
    
    .pricing-features .feature-item {
        font-size: 0.88rem;
    }
}

/* ========== 增强响应式 - 首页横幅优化 ========== */
@media (max-width: 576px) {
    .hero-devices {
        gap: 6px;
        margin: 15px 0 25px;
    }
    
    .device-tag {
        padding: 5px 10px;
        font-size: 0.75rem;
        gap: 5px;
    }
    
    .device-tag i {
        font-size: 0.85rem;
    }
    
    .scroll-indicator {
        display: none;
    }
}

/* ========== 增强响应式 - 联系区域手机端优化 ========== */
@media (max-width: 576px) {
    .contact-card .qr-code {
        width: 100px;
        height: 100px;
        margin-top: 10px;
    }
    
    .contact-card {
        flex-direction: column;
        text-align: center;
    }
    
    .contact-card i {
        margin-bottom: 10px;
    }
}

/* ========== 增强响应式 - 页脚优化 ========== */
@media (max-width: 576px) {
    .footer-links {
        flex-direction: column;
        gap: 10px;
    }
}

/* ========== 触摸设备优化 ========== */
@media (hover: none) and (pointer: coarse) {
    .feature-card:hover {
        transform: none;
    }
    
    .pricing-card:hover {
        transform: none;
    }
    
    .screenshot-item:hover {
        transform: none;
    }
    
    .download-card:hover {
        transform: none;
    }
    
    .contact-card:hover {
        transform: none;
    }
    
    .btn-primary:hover {
        transform: none;
    }
    
    /* 触摸设备上点击效果 */
    .feature-card:active,
    .pricing-card:active,
    .btn:active {
        transform: scale(0.98);
        opacity: 0.9;
    }
}

/* ========== 横屏手机优化 ========== */
@media (max-height: 500px) and (orientation: landscape) {
    .hero {
        min-height: auto;
        padding: 80px 20px 40px;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-stats {
        gap: 30px;
    }
    
    .stat-number {
        font-size: 1.8rem;
    }
    
    section {
        padding: 40px 0;
    }
}

/* ========== 安全区域适配 (iPhone X 等刘海屏) ========== */
@supports (padding: max(0px)) {
    .navbar {
        padding-top: max(0px, env(safe-area-inset-top));
    }
    
    .footer {
        padding-bottom: max(30px, env(safe-area-inset-bottom));
    }
    
    .back-to-top {
        bottom: max(20px, calc(env(safe-area-inset-bottom) + 10px));
    }
}