/* ========================================
   苹果多开网站 - 精美UI样式
   Apple Design Style
======================================== */

/* CSS变量 - 苹果风格配色 */
:root {
    --primary-color: #007AFF;
    --primary-dark: #0056CC;
    --secondary-color: #5856D6;
    --accent-color: #34C759;
    --bg-primary: #000000;
    --bg-secondary: #1C1C1E;
    --bg-card: #2C2C2E;
    --text-primary: #FFFFFF;
    --text-secondary: #98989D;
    --text-muted: #636366;
    --border-color: #38383A;
    --gradient-1: linear-gradient(135deg, #007AFF 0%, #5856D6 100%);
    --gradient-2: linear-gradient(135deg, #34C759 0%, #30D158 100%);
    --shadow-soft: 0 4px 20px rgba(0, 122, 255, 0.15);
    --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.4);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* 重置样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

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

ul {
    list-style: none;
}

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

/* ========================================
   导航栏
======================================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
    transition: var(--transition);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 64px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.25rem;
    font-weight: 600;
}

.logo i {
    font-size: 1.5rem;
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-links {
    display: flex;
    gap: 32px;
}

.nav-links a {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
    transition: var(--transition);
    position: relative;
}

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

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-1);
    transition: var(--transition);
}

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

.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
}

.hamburger span {
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    transition: var(--transition);
}

/* ========================================
   Hero 区域
======================================== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 100px 24px 60px;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, rgba(0, 122, 255, 0.15) 0%, transparent 70%);
    pointer-events: none;
}

.hero-content {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    width: 100%;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: var(--bg-card);
    border-radius: 100px;
    font-size: 0.85rem;
    color: var(--primary-color);
    margin-bottom: 24px;
    border: 1px solid var(--border-color);
}

.hero-title {
    font-size: 4rem;
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: 24px;
    letter-spacing: -0.02em;
}

.gradient-text {
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 40px;
    max-width: 480px;
}

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

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 28px;
    border-radius: 12px;
    font-size: 1rem;
    font-weight: 600;
    transition: var(--transition);
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: var(--gradient-1);
    color: white;
    box-shadow: var(--shadow-soft);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(0, 122, 255, 0.3);
}

.btn-secondary {
    background: var(--bg-card);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

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

.btn-large {
    padding: 16px 32px;
    font-size: 1.1rem;
}

.hero-stats {
    display: flex;
    gap: 40px;
}

.stat-item {
    display: flex;
    flex-direction: column;
}

.stat-number {
    font-size: 2rem;
    font-weight: 700;
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

/* Hero 视觉区域 */
.hero-visual {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}

.phone-mockup {
    width: 280px;
    height: 560px;
    background: var(--bg-card);
    border-radius: 40px;
    padding: 12px;
    box-shadow: var(--shadow-card);
    position: relative;
    border: 1px solid var(--border-color);
}

.phone-screen {
    width: 100%;
    height: 100%;
    background: linear-gradient(180deg, #1a1a2e 0%, #16213e 100%);
    border-radius: 32px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 20px;
}

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

.app-icon {
    width: 70px;
    height: 70px;
    background: var(--gradient-1);
    border-radius: 18px;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 2rem;
    color: white;
    box-shadow: 0 4px 15px rgba(0, 122, 255, 0.3);
    animation: float 3s ease-in-out infinite;
}

.app-icon:nth-child(2) {
    background: linear-gradient(135deg, #5856D6 0%, #AF52DE 100%);
    animation-delay: 0.5s;
}

.app-icon:nth-child(3) {
    background: linear-gradient(135deg, #FF2D55 0%, #FF9500 100%);
    animation-delay: 1s;
}

.app-icon:nth-child(4) {
    background: linear-gradient(135deg, #34C759 0%, #30D158 100%);
    animation-delay: 1.5s;
}

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

.floating-elements {
    position: absolute;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

.float-item {
    position: absolute;
    width: 50px;
    height: 50px;
    background: var(--bg-card);
    border-radius: 14px;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 1.5rem;
    color: var(--primary-color);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-card);
}

.float-1 {
    top: 10%;
    right: 5%;
    animation: float 4s ease-in-out infinite;
}

.float-2 {
    bottom: 20%;
    left: 0;
    animation: float 4s ease-in-out infinite 1s;
}

.float-3 {
    top: 50%;
    right: -10%;
    animation: float 4s ease-in-out infinite 2s;
}

/* ========================================
   通用区域样式
======================================== */
.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-tag {
    display: inline-block;
    padding: 6px 16px;
    background: var(--bg-card);
    border-radius: 100px;
    font-size: 0.85rem;
    color: var(--primary-color);
    margin-bottom: 16px;
    border: 1px solid var(--border-color);
}

.section-header h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 16px;
}

.section-header p {
    font-size: 1.1rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* ========================================
   功能特点
======================================== */
.features {
    padding: 100px 0;
    background: var(--bg-secondary);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 24px;
}

.feature-card {
    background: var(--bg-card);
    border-radius: 20px;
    padding: 32px;
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.feature-card:hover {
    transform: translateY(-4px);
    border-color: var(--primary-color);
    box-shadow: var(--shadow-soft);
}

.feature-icon {
    width: 56px;
    height: 56px;
    background: var(--gradient-1);
    border-radius: 16px;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 1.5rem;
    color: white;
    margin-bottom: 20px;
}

.feature-card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 12px;
}

.feature-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.6;
}

/* ========================================
   效果展示
======================================== */
.showcase {
    padding: 100px 0;
}

.showcase-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
    margin-bottom: 60px;
}

.showcase-item {
    background: var(--bg-card);
    border-radius: 20px;
    overflow: hidden;
    border: 1px solid var(--border-color);
    transition: var(--transition);
    cursor: pointer;
}

.showcase-item:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-card);
    border-color: var(--primary-color);
}

.showcase-image {
    position: relative;
    aspect-ratio: 16/10;
    overflow: hidden;
    background: var(--bg-secondary);
}

.showcase-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.showcase-item:hover .showcase-image img {
    transform: scale(1.05);
}

.showcase-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.6);
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 0;
    transition: var(--transition);
}

.showcase-item:hover .showcase-overlay {
    opacity: 1;
}

.showcase-overlay i {
    font-size: 2.5rem;
    color: white;
}

.showcase-info {
    padding: 24px;
}

.showcase-info h3 {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 8px;
}

.showcase-info p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.showcase-cta {
    text-align: center;
    padding: 40px;
    background: var(--bg-card);
    border-radius: 20px;
    border: 1px solid var(--border-color);
}

.showcase-cta p {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 24px;
}

/* ========================================
   联系方式
======================================== */
.contact {
    padding: 100px 0;
    background: var(--bg-secondary);
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-bottom: 60px;
}

.contact-card {
    background: var(--bg-card);
    border-radius: 24px;
    padding: 40px 32px;
    text-align: center;
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.contact-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-card);
}

.contact-card.wechat:hover {
    border-color: #07C160;
}

.contact-card.qq:hover {
    border-color: #12B7F5;
}

.contact-card.email:hover {
    border-color: var(--primary-color);
}

.contact-icon {
    width: 80px;
    height: 80px;
    border-radius: 24px;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 2.5rem;
    margin: 0 auto 24px;
    transition: var(--transition);
}

.wechat .contact-icon {
    background: rgba(7, 193, 96, 0.1);
    color: #07C160;
}

.qq .contact-icon {
    background: rgba(18, 183, 245, 0.1);
    color: #12B7F5;
}

.email .contact-icon {
    background: rgba(0, 122, 255, 0.1);
    color: var(--primary-color);
}

.contact-card h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 8px;
}

.contact-card > p {
    color: var(--text-secondary);
    margin-bottom: 24px;
}

.qr-code {
    width: 180px;
    height: 180px;
    margin: 0 auto 24px;
    background: white;
    border-radius: 16px;
    padding: 12px;
    overflow: hidden;
}

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

.qr-placeholder {
    width: 100%;
    height: 100%;
    background: var(--bg-secondary);
    border-radius: 12px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    color: var(--text-muted);
    gap: 8px;
}

.qr-placeholder i {
    font-size: 3rem;
}

.qr-placeholder span {
    font-size: 0.85rem;
}

.email-action {
    margin-bottom: 24px;
}

.email-btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 16px 32px;
    background: var(--gradient-1);
    color: white;
    border-radius: 12px;
    font-weight: 600;
    transition: var(--transition);
}

.email-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-soft);
}

.contact-id {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    padding: 12px 20px;
    background: var(--bg-secondary);
    border-radius: 12px;
    font-size: 0.95rem;
    color: var(--text-secondary);
}

.copy-btn {
    width: 32px;
    height: 32px;
    border: none;
    background: var(--bg-card);
    border-radius: 8px;
    color: var(--text-secondary);
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    justify-content: center;
    align-items: center;
}

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

.copy-btn.copied {
    background: var(--accent-color);
    color: white;
}

.work-hours {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 20px;
    padding: 30px;
    background: var(--bg-card);
    border-radius: 16px;
    border: 1px solid var(--border-color);
}

.work-hours-icon {
    width: 56px;
    height: 56px;
    background: var(--gradient-2);
    border-radius: 16px;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 1.5rem;
    color: white;
}

.work-hours-content h4 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 4px;
}

.work-hours-content p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* ========================================
   页脚
======================================== */
.footer {
    padding: 60px 0 30px;
    background: var(--bg-primary);
    border-top: 1px solid var(--border-color);
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 60px;
    margin-bottom: 40px;
}

.footer-brand .logo {
    margin-bottom: 16px;
}

.footer-brand p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.footer-links h4,
.footer-contact h4 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 20px;
}

.footer-links ul,
.footer-contact ul {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-links a {
    color: var(--text-secondary);
    font-size: 0.95rem;
    transition: var(--transition);
}

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

.footer-contact li {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.footer-contact i {
    color: var(--primary-color);
    width: 20px;
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid var(--border-color);
}

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

/* ========================================
   图片模态框
======================================== */
.modal {
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.95);
    backdrop-filter: blur(10px);
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.modal-close {
    position: absolute;
    top: 30px;
    right: 40px;
    color: white;
    font-size: 40px;
    font-weight: 300;
    cursor: pointer;
    transition: var(--transition);
    z-index: 2001;
}

.modal-close:hover {
    color: var(--primary-color);
    transform: rotate(90deg);
}

.modal-content {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    max-width: 90%;
    max-height: 85%;
    border-radius: 12px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}

.modal-caption {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    color: white;
    font-size: 1.1rem;
    text-align: center;
}

/* ========================================
   返回顶部按钮
======================================== */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    color: var(--text-primary);
    font-size: 1.2rem;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    z-index: 999;
    display: flex;
    justify-content: center;
    align-items: center;
}

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

.back-to-top:hover {
    background: var(--primary-color);
    border-color: var(--primary-color);
    transform: translateY(-4px);
}

/* ========================================
   响应式设计
======================================== */
@media (max-width: 1024px) {
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-title {
        font-size: 3rem;
    }

    .hero-subtitle {
        margin: 0 auto 40px;
    }

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

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

    .hero-visual {
        display: none;
    }

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

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

    .hamburger {
        display: flex;
    }

    .hero {
        padding: 100px 20px 60px;
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }

    .btn {
        width: 100%;
        max-width: 280px;
        justify-content: center;
    }

    .hero-stats {
        flex-direction: column;
        gap: 24px;
    }

    .section-header h2 {
        font-size: 2rem;
    }

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

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

    .footer-content {
        grid-template-columns: 1fr;
        gap: 40px;
        text-align: center;
    }

    .footer-brand .logo {
        justify-content: center;
    }

    .footer-contact li {
        justify-content: center;
    }

    .work-hours {
        flex-direction: column;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }

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

    .feature-card {
        padding: 24px;
    }

    .contact-card {
        padding: 30px 20px;
    }

    .qr-code {
        width: 150px;
        height: 150px;
    }
}

/* ========================================
   滚动动画
======================================== */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}