@import url('https://fonts.googleapis.com/css2?family=ZCOOL+KuaiLe&display=swap');
@import url('https://cdn.jsdelivr.net/npm/lxgw-wenkai-webfont@1.7.0/style.css');

:root {
    --bg-deep: #0B0B1A;
    --bg-mid: #1A1A2E;
    --bg-light: #16213E;
    --coral: #FF6B6B;
    --gold: #F0A500;
    --teal: #4ECDC4;
    --text-primary: #FFFFFF;
    --text-secondary: #B8B8D0;
    --text-muted: #6C6C8A;
    --card-bg: rgba(255, 255, 255, 0.05);
    --card-border: rgba(255, 255, 255, 0.08);
    --glass-blur: 20px;
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 28px;
    --font-title: 'ZCOOL KuaiLe', cursive;
    --font-body: 'LXGW WenKai', serif;
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-body);
    background: var(--bg-deep);
    color: var(--text-primary);
    overflow-x: hidden;
    line-height: 1.7;
}

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

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

/* ===== 粒子画布 ===== */
#particle-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    pointer-events: none;
}

/* ===== 导航栏 ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 16px 0;
    transition: var(--transition);
    background: transparent;
}

.navbar.scrolled {
    background: rgba(11, 11, 26, 0.85);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    border-bottom: 1px solid var(--card-border);
    padding: 10px 0;
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-family: var(--font-title);
    font-size: 1.5rem;
    color: var(--text-primary);
}

.logo-icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--coral), var(--gold));
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    color: #fff;
    font-weight: 700;
}

.logo-img {
    width: 36px;
    height: 36px;
    border-radius: 10px;
    object-fit: cover;
}

.logo-text {
    background: linear-gradient(135deg, var(--coral), var(--gold));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

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

.nav-link:hover {
    color: var(--coral);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--coral);
    transition: var(--transition);
    border-radius: 1px;
}

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

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}

.mobile-menu-btn span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: var(--transition);
}

.mobile-menu-btn.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.mobile-menu-btn.active span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-btn.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

.mobile-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: rgba(11, 11, 26, 0.95);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    padding: 20px 24px;
    border-bottom: 1px solid var(--card-border);
}

.mobile-menu.active {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.mobile-link {
    font-size: 1rem;
    color: var(--text-secondary);
    padding: 8px 0;
    transition: var(--transition);
}

.mobile-link:hover {
    color: var(--coral);
}

/* ===== Hero区 ===== */
.hero {
    position: relative;
    z-index: 1;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 120px 24px 80px;
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, #0B0B1A 0%, #1a103c 50%, #0d1a2e 100%);
    z-index: -1;
}

.hero-background::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, rgba(255, 107, 107, 0.08) 0%, transparent 70%);
    border-radius: 50%;
}

.hero-background::after {
    content: '';
    position: absolute;
    bottom: -30%;
    left: -10%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(240, 165, 0, 0.06) 0%, transparent 70%);
    border-radius: 50%;
}

.hero-content {
    max-width: 500px;
    z-index: 2;
    margin-right: 150px;
    text-align: center;
}

.hero-badge {
    display: inline-block;
    padding: 10px 28px;
    background: linear-gradient(135deg, #7C3AED, #FF4D6A);
    color: white;
    border-radius: 24px;
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 24px;
    animation: fadeInUp 0.6s ease, badgePulse 2s ease-in-out infinite;
    letter-spacing: 2px;
    box-shadow: 0 0 20px rgba(124, 58, 237, 0.3);
    position: relative;
}

@keyframes badgePulse {
    0%, 100% { transform: scale(1); box-shadow: 0 0 20px rgba(124, 58, 237, 0.3); }
    50% { transform: scale(1.03); box-shadow: 0 0 30px rgba(255, 77, 106, 0.5); }
}

.hero-title {
    font-family: var(--font-title);
    font-size: 56px;
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: 16px;
    color: #FFFFFF;
    animation: fadeInUp 0.6s ease 0.1s both;
}

.hero-subtitle {
    font-size: 28px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 12px;
    animation: fadeInUp 0.6s ease 0.2s both;
}

.hero-description {
    font-size: 18px;
    color: var(--text-secondary);
    margin-bottom: 32px;
    animation: fadeInUp 0.6s ease 0.3s both;
    line-height: 1.6;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    margin-bottom: 48px;
    justify-content: center;
    animation: fadeInUp 0.6s ease 0.4s both;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 28px;
    border-radius: var(--radius-md);
    font-size: 16px;
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition-fast);
    cursor: pointer;
    border: none;
    font-family: var(--font-body);
}

.btn-primary {
    background: linear-gradient(135deg, var(--coral), #FF8E8E);
    color: white;
    box-shadow: 0 4px 16px rgba(255, 107, 107, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 24px rgba(255, 107, 107, 0.45);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.06);
    color: var(--text-primary);
    border: 1.5px solid rgba(255, 255, 255, 0.12);
    backdrop-filter: blur(10px);
}

.btn-secondary:hover {
    border-color: rgba(255, 255, 255, 0.25);
    color: var(--coral);
    transform: translateY(-2px);
}

.hero-stats {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
    margin-top: 32px;
    animation: fadeInUp 0.6s ease 0.5s both;
}

.platform-tags {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
}

.platform-tag {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 24px;
    border-radius: var(--radius-lg);
    font-size: 17px;
    font-weight: 700;
    transition: all 0.3s ease;
}

.platform-tag svg,
.platform-tag img {
    flex-shrink: 0;
}

.android-tag {
    background: rgba(61, 220, 132, 0.12);
    color: #3DDC84;
    border: 1.5px solid rgba(61, 220, 132, 0.3);
}

.harmonyos-tag {
    position: relative;
    background: linear-gradient(135deg, rgba(206, 14, 45, 0.15), rgba(255, 77, 106, 0.12));
    color: #FF6B6B;
    border: 1.5px solid rgba(255, 107, 107, 0.3);
    box-shadow: 0 4px 16px rgba(255, 107, 107, 0.15);
    animation: harmonyosGlow 2.5s ease-in-out infinite;
}

@keyframes harmonyosGlow {
    0%, 100% { box-shadow: 0 4px 16px rgba(255, 107, 107, 0.15); }
    50% { box-shadow: 0 4px 28px rgba(255, 77, 106, 0.35); }
}

.platform-new {
    position: absolute;
    top: -8px;
    right: -6px;
    background: linear-gradient(135deg, #CE0E2D, #FF4D6A);
    color: white;
    padding: 2px 7px;
    border-radius: 8px;
    font-size: 9px;
    font-weight: 800;
    letter-spacing: 1px;
    animation: newPulse 1.5s ease-in-out infinite;
}

@keyframes newPulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.12); }
}

.stat-items {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 56px;
}

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

.stat-number {
    display: block;
    font-size: 26px;
    font-weight: 700;
    color: var(--coral);
}

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

/* ===== 手机模拟器 ===== */
.hero-phone {
    display: flex;
    justify-content: center;
    align-items: center;
    animation: fadeInRight 0.8s ease 0.3s both;
    min-height: 700px;
}

.phone-demo-wrapper {
    position: relative;
    z-index: 2;
    perspective: 1200px;
}

.phone-mockup {
    width: 320px;
    height: 640px;
    background: #1C1C2E;
    border-radius: 40px;
    border: 3px solid rgba(255, 255, 255, 0.12);
    overflow: hidden;
    position: relative;
    box-shadow:
        0 0 60px rgba(255, 107, 107, 0.15),
        0 0 120px rgba(240, 165, 0, 0.08),
        0 30px 60px rgba(0, 0, 0, 0.5),
        inset 0 0 30px rgba(255, 255, 255, 0.03);
    transition: transform 0.15s ease-out;
    transform-style: preserve-3d;
}

.phone-notch {
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 120px;
    height: 28px;
    background: #1C1C2E;
    border-radius: 0 0 18px 18px;
    z-index: 10;
}

.phone-notch::before {
    content: '';
    position: absolute;
    top: 10px;
    left: 50%;
    transform: translateX(-50%);
    width: 8px;
    height: 8px;
    background: #2A2A3E;
    border-radius: 50%;
}

.phone-screen {
    width: 100%;
    height: 100%;
    position: relative;
    overflow: hidden;
    background: #0F0F1E;
}

.phone-statusbar {
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 24px;
    font-size: 0.7rem;
    color: var(--text-secondary);
    position: relative;
    z-index: 5;
}

.phone-statusbar .time {
    font-weight: 600;
}

.phone-statusbar .icons {
    display: flex;
    gap: 4px;
    align-items: center;
}

.phone-statusbar .icons span {
    font-size: 0.65rem;
}

/* 手机页面容器 */
.phone-pages {
    position: relative;
    height: calc(100% - 44px - 60px);
    overflow: hidden;
}

.phone-page {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    padding: 12px 16px;
    overflow-y: auto;
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.4s ease;
    transform: translateX(100%);
    opacity: 0;
    scrollbar-width: none;
}

.phone-page::-webkit-scrollbar {
    display: none;
}

.phone-page.active {
    transform: translateX(0);
    opacity: 1;
}

.phone-page.exit-left {
    transform: translateX(-30%);
    opacity: 0;
}

/* ===== Tab1 首页 ===== */
.app-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 12px;
    padding-bottom: 8px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.app-bar-title {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-primary);
    font-family: var(--font-title);
}

.app-bar-icon {
    cursor: pointer;
}

.page-greeting {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 16px;
    color: var(--text-primary);
}

.page-greeting .wave {
    display: inline-block;
    animation: wave 2s infinite;
    transform-origin: 70% 70%;
}

@keyframes wave {
    0%, 60%, 100% { transform: rotate(0deg); }
    10% { transform: rotate(14deg); }
    20% { transform: rotate(-8deg); }
    30% { transform: rotate(14deg); }
    40% { transform: rotate(-4deg); }
    50% { transform: rotate(10deg); }
}

.member-row {
    display: flex;
    gap: 16px;
    margin-bottom: 20px;
    align-items: center;
}

.member-avatar {
    position: relative;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.member-avatar .avatar-circle {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    font-weight: 600;
    color: #fff;
    position: relative;
    z-index: 2;
}

.member-avatar .avatar-name {
    position: absolute;
    bottom: -14px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 0.6rem;
    color: var(--text-muted);
    white-space: nowrap;
}

.member-avatar.golden-ring {
    position: relative;
    z-index: 0;
}

.member-avatar.golden-ring::before {
    content: '';
    position: absolute;
    top: -4px;
    left: -4px;
    right: -4px;
    bottom: -4px;
    border-radius: 50%;
    background: conic-gradient(
        from 0deg,
        transparent 0deg,
        var(--gold) 60deg,
        transparent 120deg,
        transparent 240deg,
        var(--gold) 300deg,
        transparent 360deg
    );
    animation: goldenSpin 2s linear infinite;
    z-index: 0;
    box-shadow: 0 0 10px rgba(240, 165, 0, 0.5);
}

.member-avatar.golden-ring::after {
    content: '';
    position: absolute;
    top: -2px;
    left: -2px;
    right: -2px;
    bottom: -2px;
    border-radius: 50%;
    background: #0F0F1E;
    z-index: 1;
}

@keyframes goldenSpin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.section-label {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-bottom: 8px;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.course-card-mini {
    background: rgba(255, 255, 255, 0.06);
    border-radius: 12px;
    padding: 12px;
    margin-bottom: 8px;
    border: 1px solid rgba(255, 255, 255, 0.06);
    display: flex;
    align-items: center;
    gap: 10px;
}

.course-card-mini .course-icon {
    width: 36px;
    height: 36px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    flex-shrink: 0;
}

.course-card-mini .course-info {
    flex: 1;
    min-width: 0;
}

.course-card-mini .course-name {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 2px;
}

.course-card-mini .course-meta {
    font-size: 0.65rem;
    color: var(--text-muted);
}

.course-card-mini .course-progress {
    font-size: 0.65rem;
    color: var(--teal);
    font-weight: 600;
    white-space: nowrap;
}

.course-progress-wrap {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 3px;
}

.progress-bar-mini {
    width: 40px;
    height: 3px;
    background: rgba(255, 255, 255, 0.08);
    border-radius: 2px;
    overflow: hidden;
}

.progress-bar-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--teal), var(--gold));
    border-radius: 2px;
}

.stats-row {
    display: flex;
    gap: 8px;
    margin-top: 16px;
}

.stat-card-mini {
    flex: 1;
    background: rgba(255, 255, 255, 0.04);
    border-radius: 10px;
    padding: 10px 8px;
    text-align: center;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.stat-card-mini .stat-value {
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--text-primary);
}

.stat-card-mini .stat-label {
    font-size: 0.55rem;
    color: var(--text-muted);
    margin-top: 2px;
}

/* ===== Tab2 课程 ===== */
.category-tabs {
    display: flex;
    gap: 6px;
    margin-bottom: 12px;
    overflow-x: auto;
    scrollbar-width: none;
}

.category-tabs::-webkit-scrollbar {
    display: none;
}

.cat-tab {
    padding: 4px 12px;
    border-radius: 50px;
    font-size: 0.6rem;
    color: var(--text-muted);
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.06);
    white-space: nowrap;
    cursor: pointer;
    transition: var(--transition);
}

.cat-tab.active {
    color: var(--coral);
    background: rgba(255, 107, 107, 0.12);
    border-color: rgba(255, 107, 107, 0.3);
}

.course-list-item {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 12px;
    padding: 12px;
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 12px;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.course-list-item .item-icon {
    width: 40px;
    height: 40px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    flex-shrink: 0;
}

.course-list-item .item-info {
    flex: 1;
}

.course-list-item .item-name {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-primary);
}

.course-list-item .item-detail {
    font-size: 0.65rem;
    color: var(--text-muted);
    margin-top: 2px;
}

.course-list-item .item-sessions {
    font-size: 0.7rem;
    color: var(--teal);
    font-weight: 600;
}

.item-color-bar {
    width: 3px;
    height: 28px;
    border-radius: 2px;
    flex-shrink: 0;
}

.item-status {
    font-size: 0.5rem;
    padding: 2px 6px;
    border-radius: 4px;
    font-weight: 600;
    white-space: nowrap;
    flex-shrink: 0;
}

.item-status.ongoing {
    background: rgba(78, 205, 196, 0.12);
    color: var(--teal);
}

.item-status.completed {
    background: rgba(255, 255, 255, 0.06);
    color: var(--text-muted);
}

.item-status.paused {
    background: rgba(240, 165, 0, 0.12);
    color: var(--gold);
}

.fab-button {
    position: absolute;
    bottom: 16px;
    right: 16px;
    width: 44px;
    height: 44px;
    border-radius: 14px;
    background: linear-gradient(135deg, var(--coral), #FF8E8E);
    border: none;
    color: #fff;
    font-size: 1.4rem;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 16px rgba(255, 107, 107, 0.4);
    cursor: pointer;
}

/* ===== Tab3 统计 ===== */
.stat-overview-card {
    background: linear-gradient(135deg, rgba(255, 107, 107, 0.12), rgba(240, 165, 0, 0.08));
    border-radius: 14px;
    padding: 16px;
    margin-bottom: 16px;
    border: 1px solid rgba(255, 107, 107, 0.15);
}

.stat-overview-card .overview-title {
    font-size: 0.7rem;
    color: var(--text-muted);
    margin-bottom: 8px;
}

.stat-overview-card .overview-row {
    display: flex;
    justify-content: space-around;
}

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

.stat-overview-card .overview-value {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-primary);
}

.stat-overview-card .overview-label {
    font-size: 0.6rem;
    color: var(--text-muted);
    margin-top: 2px;
}

.chart-section {
    margin-bottom: 16px;
}

.chart-title {
    font-size: 0.75rem;
    color: var(--text-secondary);
    margin-bottom: 10px;
    font-weight: 500;
}

.pie-chart-container {
    display: flex;
    align-items: center;
    gap: 16px;
    background: rgba(255, 255, 255, 0.03);
    border-radius: 12px;
    padding: 16px;
}

.css-pie {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: conic-gradient(
        var(--coral) 0deg 126deg,
        var(--teal) 126deg 216deg,
        var(--gold) 216deg 288deg,
        #8B5CF6 288deg 360deg
    );
    flex-shrink: 0;
    position: relative;
}

.css-pie::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 40px;
    height: 40px;
    background: #0F0F1E;
    border-radius: 50%;
    transform: translate(-50%, -50%);
}

.pie-legend {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.pie-legend-item {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.65rem;
    color: var(--text-secondary);
}

.pie-legend-item .dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    flex-shrink: 0;
}

.bar-chart {
    background: rgba(255, 255, 255, 0.03);
    border-radius: 12px;
    padding: 16px;
}

.bar-chart-row {
    display: flex;
    align-items: flex-end;
    justify-content: space-around;
    height: 100px;
    gap: 6px;
}

.bar-col {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    flex: 1;
}

.bar-fill {
    width: 100%;
    max-width: 28px;
    border-radius: 4px 4px 0 0;
    transition: height 1s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
}

.bar-fill.animated {
    animation: barGrow 1s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

@keyframes barGrow {
    from { height: 0 !important; }
}

.bar-label {
    font-size: 0.55rem;
    color: var(--text-muted);
}

/* ===== Tab4 我的 ===== */
.profile-header {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-bottom: 20px;
    padding: 16px;
    background: rgba(255, 255, 255, 0.04);
    border-radius: 14px;
}

.profile-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--coral), var(--gold));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
}

.profile-name {
    font-size: 0.95rem;
    font-weight: 600;
}

.profile-phone {
    font-size: 0.7rem;
    color: var(--text-muted);
    margin-top: 2px;
}

.menu-list {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.menu-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 14px;
    border-radius: 10px;
    transition: var(--transition);
    cursor: pointer;
}

.menu-item:hover {
    background: rgba(255, 255, 255, 0.05);
}

.menu-item .menu-icon {
    font-size: 1rem;
    width: 24px;
    text-align: center;
    display: flex;
    align-items: center;
    justify-content: center;
}

.menu-item .menu-text {
    font-size: 0.8rem;
    color: var(--text-secondary);
    flex: 1;
}

.menu-item .menu-arrow {
    font-size: 0.7rem;
    color: var(--text-muted);
}

.profile-version {
    text-align: center;
    font-size: 0.6rem;
    color: var(--text-muted);
    margin-top: 20px;
    opacity: 0.6;
}

/* ===== 手机底部Tab ===== */
.phone-tabs {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 60px;
    background: rgba(15, 15, 30, 0.95);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    display: flex;
    align-items: center;
    justify-content: space-around;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    z-index: 10;
}

.phone-tab {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 3px;
    cursor: pointer;
    padding: 6px 12px;
    border-radius: 8px;
    transition: var(--transition);
    background: none;
    border: none;
    color: var(--text-muted);
    font-family: var(--font-body);
}

.phone-tab:hover {
    color: var(--text-secondary);
}

.phone-tab.active {
    color: var(--coral);
}

.phone-tab .tab-icon {
    font-size: 1.2rem;
    line-height: 1;
}

.phone-tab .tab-label {
    font-size: 0.55rem;
    font-weight: 500;
}

/* ===== 功能特性区 ===== */
.features-section {
    position: relative;
    z-index: 1;
    padding: 80px 0 0;
}

.section-header {
    text-align: center;
    margin-bottom: 48px;
}

.section-title {
    font-family: var(--font-title);
    font-size: clamp(2rem, 4vw, 3rem);
    margin-bottom: 12px;
}

.section-subtitle {
    color: var(--text-secondary);
    font-size: 1.1rem;
}

.feature-showcase {
    display: flex;
    gap: 0;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    margin-bottom: 48px;
}

.fs-tabs {
    display: flex;
    flex-direction: column;
    width: 200px;
    flex-shrink: 0;
    border-right: 1px solid var(--card-border);
    background: rgba(0, 0, 0, 0.15);
}

.fs-tab {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 16px 18px;
    background: none;
    border: none;
    border-left: 3px solid transparent;
    color: var(--text-muted);
    font-family: var(--font-body);
    font-size: 0.85rem;
    cursor: pointer;
    transition: all 0.3s ease;
    text-align: left;
    white-space: nowrap;
}

.fs-tab:hover {
    color: var(--text-secondary);
    background: rgba(255, 255, 255, 0.03);
}

.fs-tab.active {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.05);
    border-left-color: var(--coral);
}

.fs-tab-icon {
    font-size: 1.1rem;
    flex-shrink: 0;
}

.fs-tab-text {
    font-weight: 500;
}

.fs-panels {
    flex: 1;
    min-width: 0;
    position: relative;
}

.fs-panel {
    display: none;
    padding: 32px;
    animation: fsFadeIn 0.4s ease;
}

.fs-panel.active {
    display: flex;
    gap: 32px;
    align-items: stretch;
    min-height: 420px;
}

@keyframes fsFadeIn {
    from { opacity: 0; transform: translateX(10px); }
    to { opacity: 1; transform: translateX(0); }
}

.fs-panel-content { width: 260px; flex-shrink: 0; display: flex; flex-direction: column; justify-content: center; }

.fs-title {
    font-family: var(--font-title);
    font-size: 1.3rem;
    margin-bottom: 10px;
}

.fs-desc {
    font-size: 0.88rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 14px;
}

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

.fs-panel-demo {
    flex: 1;
    min-width: 0;
    background: rgba(0, 0, 0, 0.2);
    border-radius: 12px;
    padding: 24px;
    border: 1px solid rgba(255, 255, 255, 0.04);
    display: flex;
    align-items: center;
    justify-content: center;
}

.fs-panel-demo > * {
    width: 100%;
    height: 100%;
}

.demo-members { display: flex; gap: 24px; justify-content: center; align-items: center; height: 100%; }
.demo-member { text-align: center; }
.demo-member .dm-avatar {
    width: 56px; height: 56px; border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    margin: 0 auto 6px;
    position: relative;
}
.demo-member .dm-avatar-circle {
    width: 48px; height: 48px; border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    font-size: 0.9rem; color: #fff;
    position: relative; z-index: 2;
}
.demo-member.active .dm-avatar::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    border-radius: 50%;
    background: conic-gradient(
        from 0deg,
        transparent 0deg,
        var(--gold) 60deg,
        transparent 120deg,
        transparent 240deg,
        var(--gold) 300deg,
        transparent 360deg
    );
    animation: goldenSpin 2s linear infinite;
    z-index: 0;
    box-shadow: 0 0 10px rgba(240, 165, 0, 0.5);
}
.demo-member.active .dm-avatar::after {
    content: '';
    position: absolute;
    top: 2px; left: 2px; right: 2px; bottom: 2px;
    border-radius: 50%;
    background: #0F0F1E;
    z-index: 1;
}
.demo-member .dm-name { font-size: 0.7rem; color: var(--text-muted); }

.demo-calendar { display: flex; flex-direction: column; gap: 4px; height: 100%; justify-content: center; }
.dc-row { display: grid; grid-template-columns: repeat(7, 1fr); gap: 4px; }
.dc-h { font-size: 0.65rem; color: var(--text-muted); text-align: center; }
.dc-d {
    aspect-ratio: 1; border-radius: 6px;
    display: flex; align-items: center; justify-content: center;
    font-size: 0.65rem; color: var(--text-secondary);
    position: relative;
}
.dc-d.has-dot::after {
    content: ''; position: absolute; bottom: 2px;
    width: 5px; height: 5px; border-radius: 50%;
}
.dc-d.has-dot.coral::after { background: var(--coral); }
.dc-d.has-dot.teal::after { background: var(--teal); }
.dc-d.has-dot.gold::after { background: var(--gold); }

.dc-d.has-dots::after { display: none; }
.dc-d.has-dots {
    position: relative;
}
.dc-d.has-dots .dc-dots {
    position: absolute; bottom: 1px; left: 50%; transform: translateX(-50%);
    display: flex; gap: 2px;
}
.dc-dots .dc-dot { width: 4px; height: 4px; border-radius: 50%; }
.dc-dots .dc-dot.coral { background: var(--coral); }
.dc-dots .dc-dot.teal { background: var(--teal); }
.dc-dots .dc-dot.gold { background: var(--gold); }

.demo-schedule { display: flex; flex-direction: column; gap: 10px; height: 100%; justify-content: center; }
.ds-item {
    display: flex; align-items: center; gap: 10px;
    padding: 10px 14px; background: rgba(255,255,255,0.03); border-radius: 8px;
}
.ds-dot { width: 8px; height: 8px; border-radius: 50%; flex-shrink: 0; }
.ds-text { font-size: 0.75rem; color: var(--text-secondary); flex: 1; }
.ds-time { font-size: 0.65rem; color: var(--text-muted); }

.demo-stats { display: flex; flex-direction: column; gap: 14px; height: 100%; justify-content: center; }
.dst-summary { display: flex; gap: 20px; margin-bottom: 8px; padding: 10px 14px; background: rgba(255,255,255,0.04); border-radius: 10px; border: 1px solid rgba(255,255,255,0.06); }
.dst-sum-item { display: flex; flex-direction: column; align-items: center; flex: 1; }
.dst-sum-val { font-family: var(--font-title); font-size: 1.1rem; font-weight: 700; line-height: 1.2; }
.dst-sum-label { font-size: 0.6rem; color: var(--text-muted); margin-top: 2px; }
.dst-row { display: flex; align-items: center; gap: 10px; }
.dst-label { font-size: 0.72rem; color: var(--text-secondary); width: 72px; flex-shrink: 0; }
.dst-bar { flex: 1; height: 10px; background: rgba(255,255,255,0.06); border-radius: 5px; overflow: hidden; }
.dst-fill { height: 100%; border-radius: 5px; transition: width 1s cubic-bezier(0.4,0,0.2,1); }
.dst-val { font-size: 0.65rem; color: var(--text-muted); width: 42px; text-align: right; }

.demo-sync { display: flex; flex-direction: column; gap: 6px; height: 100%; justify-content: center; }
.dsync-header { font-size: 0.72rem; font-weight: 600; color: var(--text-primary); margin-bottom: 4px; }
.dsync-section { margin-bottom: 4px; }
.dsync-section-title { font-size: 0.6rem; color: var(--text-muted); margin-bottom: 4px; padding-left: 2px; }
.dsync-item { display: flex; align-items: center; gap: 8px; font-size: 0.72rem; color: var(--text-secondary); padding: 6px 8px; background: rgba(255,255,255,0.03); border-radius: 6px; margin-bottom: 3px; }
.dsync-check {
    width: 18px; height: 18px; border-radius: 4px;
    display: flex; align-items: center; justify-content: center;
    font-size: 0.55rem; flex-shrink: 0;
}
.dsync-check.on { background: var(--teal); color: #fff; }
.dsync-check.off { border: 1.5px solid var(--text-muted); }
.dsync-color { width: 6px; height: 6px; border-radius: 50%; flex-shrink: 0; }
.dsync-name { flex: 1; }
.dsync-detail { font-size: 0.6rem; color: var(--text-muted); }
.dsync-footer { font-size: 0.6rem; color: var(--teal); text-align: center; margin-top: 4px; padding: 6px; background: rgba(78,205,196,0.08); border-radius: 6px; }

.demo-materials { display: flex; flex-direction: column; gap: 10px; height: 100%; justify-content: center; }
.dmat-item { display: flex; align-items: center; gap: 10px; }
.dmat-icon {
    width: 32px; height: 32px; border-radius: 7px;
    display: flex; align-items: center; justify-content: center;
    font-size: 0.55rem; font-weight: 700; color: #fff; flex-shrink: 0;
}
.dmat-icon.pdf { background: linear-gradient(135deg, #FF6B6B, #FF8E8E); }
.dmat-icon.img { background: linear-gradient(135deg, #4ECDC4, #6EE7DE); }
.dmat-icon.doc { background: linear-gradient(135deg, #F0A500, #FFD166); }
.dmat-name { font-size: 0.72rem; color: var(--text-secondary); }

.spotlight-features {
    position: relative;
    z-index: 1;
}

.spotlight-block {
    padding: 64px 0;
    position: relative;
}

.spotlight-block + .spotlight-block::before {
    content: '';
    position: absolute;
    top: 0; left: 10%; right: 10%;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--card-border), transparent);
}

.spotlight-inner {
    display: flex;
    align-items: center;
    gap: 64px;
}

.spotlight-block.reverse .spotlight-inner {
    flex-direction: row-reverse;
}

.spotlight-content { flex: 1; min-width: 0; }

.spotlight-badge {
    display: inline-block;
    padding: 4px 14px;
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 600;
    margin-bottom: 16px;
}
.spotlight-badge.coral { background: rgba(255,107,107,0.12); color: var(--coral); border: 1px solid rgba(255,107,107,0.25); }
.spotlight-badge.gold { background: rgba(240,165,0,0.12); color: var(--gold); border: 1px solid rgba(240,165,0,0.25); }
.spotlight-badge.teal { background: rgba(78,205,196,0.12); color: var(--teal); border: 1px solid rgba(78,205,196,0.25); }

.spotlight-title {
    font-family: var(--font-title);
    font-size: clamp(1.6rem, 3vw, 2.2rem);
    margin-bottom: 16px;
    line-height: 1.3;
}

.spotlight-desc {
    font-size: 1rem;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 28px;
}

.spotlight-steps { display: flex; flex-direction: column; gap: 16px; }
.sp-step { display: flex; gap: 14px; align-items: flex-start; }
.sp-step-num {
    width: 28px; height: 28px; border-radius: 50%;
    background: linear-gradient(135deg, var(--coral), var(--gold));
    display: flex; align-items: center; justify-content: center;
    font-size: 0.75rem; font-weight: 700; color: #fff;
    flex-shrink: 0;
    box-shadow: 0 0 12px rgba(255,107,107,0.3);
}
.sp-step-content { flex: 1; }
.sp-step-title { font-size: 0.95rem; font-weight: 600; margin-bottom: 4px; }
.sp-step-desc { font-size: 0.85rem; color: var(--text-muted); line-height: 1.6; }

.spotlight-visual { flex-shrink: 0; width: 260px; }
.spotlight-phone {
    width: 260px; height: 520px;
    background: #1C1C2E;
    border-radius: 32px;
    border: 2px solid rgba(255,255,255,0.1);
    overflow: hidden;
    position: relative;
    box-shadow: 0 0 40px rgba(255,107,107,0.1), 0 20px 40px rgba(0,0,0,0.4);
    animation: phoneGlow 4s ease-in-out infinite;
}
.sp-phone-notch {
    position: absolute; top: 0; left: 50%; transform: translateX(-50%);
    width: 90px; height: 22px; background: #1C1C2E;
    border-radius: 0 0 12px 12px; z-index: 5;
}
.sp-phone-screen {
    width: 100%; height: 100%;
    padding: 36px 14px 14px;
    background: #0F0F1E;
    overflow: hidden;
}
.sp-section-label {
    font-size: 0.7rem; font-weight: 600;
    color: var(--text-primary); margin-bottom: 8px;
}

.sp-perm-grid {
    background: rgba(255,255,255,0.03);
    border-radius: 8px; padding: 6px;
    border: 1px solid rgba(255,255,255,0.05);
}
.sp-perm-header {
    display: flex; align-items: center;
    padding: 4px 8px 6px;
    border-bottom: 1px solid rgba(255,255,255,0.06);
    margin-bottom: 4px;
}
.sp-ph-module { flex: 1; font-size: 0.45rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.5px; }
.sp-ph-toggle { width: 36px; text-align: center; font-size: 0.45rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.5px; }
.sp-perm-row {
    display: flex; align-items: center;
    padding: 5px 8px; border-radius: 4px;
}
.sp-perm-row:hover { background: rgba(255,255,255,0.02); }
.sp-pm { flex: 1; font-size: 0.55rem; color: var(--text-secondary); }
.sp-toggle {
    width: 36px; height: 18px; border-radius: 9px;
    position: relative; margin: 0 auto;
}
.sp-toggle.on { background: var(--coral); }
.sp-toggle.off { background: rgba(255,255,255,0.12); }
.sp-toggle::after {
    content: ''; position: absolute;
    top: 2px; width: 14px; height: 14px;
    border-radius: 50%; background: #fff;
}
.sp-toggle.on::after { right: 2px; box-shadow: 0 0 6px rgba(255,107,107,0.4); }
.sp-toggle.off::after { left: 2px; background: rgba(255,255,255,0.4); }

.sp-visible-members { display: flex; gap: 8px; }
.sp-vm-avatar {
    width: 28px; height: 28px; border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    font-size: 0.5rem; color: #fff;
}
.sp-vm-avatar.disabled {
    background: rgba(255,255,255,0.06) !important;
    color: var(--text-muted);
    opacity: 0.5;
    text-decoration: line-through;
}

.sp-leave-card {
    display: flex; align-items: center; gap: 8px;
    padding: 8px 10px; background: rgba(255,255,255,0.04);
    border-radius: 8px; margin-bottom: 6px;
}
.sp-lc-icon {
    width: 26px; height: 26px; border-radius: 6px;
    display: flex; align-items: center; justify-content: center;
    font-size: 0.75rem; flex-shrink: 0;
}
.sp-lc-info { flex: 1; }
.sp-lc-name { font-size: 0.6rem; font-weight: 600; color: var(--text-primary); }
.sp-lc-date { font-size: 0.45rem; color: var(--text-muted); }
.sp-lc-status {
    font-size: 0.45rem; padding: 2px 6px; border-radius: 50px;
    font-weight: 600; white-space: nowrap;
}
.sp-lc-status.approved { background: rgba(78,205,196,0.12); color: var(--teal); }
.sp-lc-status.pending { background: rgba(240,165,0,0.12); color: var(--gold); }

.sp-resch-card {
    display: flex; align-items: center; gap: 8px;
    padding: 10px; background: rgba(255,255,255,0.04);
    border-radius: 8px;
}
.sp-rsch-from, .sp-rsch-to {
    width: 34px; text-align: center;
    padding: 4px 0; border-radius: 6px;
    background: rgba(255,255,255,0.06);
}
.sp-rsch-to { background: rgba(255,107,107,0.12); }
.sp-rsch-day { font-size: 0.75rem; font-weight: 700; color: var(--text-primary); line-height: 1; }
.sp-rsch-month { font-size: 0.4rem; color: var(--text-muted); margin-top: 2px; }
.sp-rsch-arrow { font-size: 0.7rem; color: var(--coral); font-weight: 700; animation: arrowBounce 1.5s ease-in-out infinite; }
.sp-rsch-info { flex: 1; }
.sp-rsch-name { font-size: 0.55rem; font-weight: 600; color: var(--text-primary); }
.sp-rsch-time { font-size: 0.45rem; color: var(--text-muted); }

@keyframes arrowBounce {
    0%, 100% { transform: translateX(0); }
    50% { transform: translateX(4px); }
}

.sp-import-flow {
    display: flex; align-items: center; gap: 0;
    padding: 8px 4px;
}
.sp-imp-step { display: flex; flex-direction: column; align-items: center; gap: 4px; z-index: 1; }
.sp-imp-num {
    width: 24px; height: 24px; border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    font-size: 0.55rem; font-weight: 700;
    background: rgba(255,255,255,0.08); border: 2px solid var(--text-muted);
    color: var(--text-muted); transition: all 0.4s ease;
}
.sp-imp-step.completed .sp-imp-num { background: var(--teal); border-color: var(--teal); color: #fff; }
.sp-imp-step.active .sp-imp-num { background: var(--coral); border-color: var(--coral); color: #fff; box-shadow: 0 0 10px rgba(255,107,107,0.4); }
.sp-imp-label { font-size: 0.45rem; color: var(--text-muted); }
.sp-imp-step.completed .sp-imp-label { color: var(--teal); }
.sp-imp-step.active .sp-imp-label { color: var(--text-primary); }
.sp-imp-connector {
    flex: 1; height: 2px;
    background: rgba(255,255,255,0.08);
    position: relative;
}
.sp-imp-fill {
    height: 100%; border-radius: 1px;
    background: linear-gradient(90deg, var(--teal), var(--coral));
}

.sp-import-item {
    display: flex; align-items: center; gap: 8px;
    padding: 6px 8px; background: rgba(255,255,255,0.03);
    border-radius: 6px; margin-bottom: 4px;
}
.sp-ii-check {
    width: 16px; height: 16px; border-radius: 4px;
    display: flex; align-items: center; justify-content: center;
    font-size: 0.5rem; flex-shrink: 0;
}
.sp-ii-check.on { background: var(--teal); color: #fff; }
.sp-ii-icon {
    width: 24px; height: 24px; border-radius: 6px;
    display: flex; align-items: center; justify-content: center;
    font-size: 0.7rem; flex-shrink: 0;
}
.sp-ii-info { flex: 1; }
.sp-ii-name { font-size: 0.55rem; font-weight: 600; color: var(--text-primary); }
.sp-ii-detail { font-size: 0.45rem; color: var(--text-muted); }

.stats-bar {
    margin-bottom: 32px;
}

.stats-bar-inner {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0;
    padding: 28px 40px;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-lg);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
}

.sb-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 0 28px;
}

.sb-num {
    font-family: var(--font-title);
    font-size: clamp(1.8rem, 3vw, 2.4rem);
    background: linear-gradient(135deg, var(--coral), var(--gold));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
}

.sb-label {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.sb-divider {
    width: 1px;
    height: 36px;
    background: var(--card-border);
}

.fc-tag { padding: 4px 12px; border-radius: 50px; font-size: 0.75rem; font-weight: 500; border: 1px solid; }
.fc-tag.coral { color: var(--coral); border-color: rgba(255,107,107,0.3); background: rgba(255,107,107,0.08); }
.fc-tag.gold { color: var(--gold); border-color: rgba(240,165,0,0.3); background: rgba(240,165,0,0.08); }
.fc-tag.teal { color: var(--teal); border-color: rgba(78,205,196,0.3); background: rgba(78,205,196,0.08); }

@keyframes phoneGlow {
    0%, 100% { box-shadow: 0 0 40px rgba(255, 107, 107, 0.1), 0 20px 40px rgba(0, 0, 0, 0.4); }
    50% { box-shadow: 0 0 60px rgba(255, 107, 107, 0.2), 0 0 80px rgba(240, 165, 0, 0.1), 0 20px 40px rgba(0, 0, 0, 0.4); }
}

/* ===== 下载区 ===== */
.download-section {
    position: relative;
    z-index: 1;
    padding: 120px 0;
}

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

.download-section .section-title {
    font-family: var(--font-title);
    font-size: clamp(2rem, 4vw, 3rem);
    margin-bottom: 16px;
}

.download-section .section-subtitle {
    color: var(--text-secondary);
    font-size: 1.1rem;
}

.download-cards {
    display: flex;
    gap: 32px;
    justify-content: center;
    flex-wrap: wrap;
}

.download-card {
    width: 320px;
    padding: 40px 32px;
    border-radius: var(--radius-xl);
    background: var(--card-bg);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    text-align: center;
    position: relative;
    overflow: hidden;
    transition: var(--transition);
    border: 1px solid var(--card-border);
}

.download-card:hover {
    transform: translateY(-8px);
    border-color: rgba(255, 255, 255, 0.15);
}

.download-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
}

.download-card.android::before {
    background: linear-gradient(90deg, #3DDC84, #4ECDC4);
    box-shadow: 0 0 20px rgba(61, 220, 132, 0.4);
}

.download-card.harmony::before {
    background: linear-gradient(90deg, #FF6B6B, #F0A500);
    box-shadow: 0 0 20px rgba(255, 107, 107, 0.4);
}

.download-card .card-icon {
    font-size: 3rem;
    margin-bottom: 20px;
}

.download-card .card-title {
    font-family: var(--font-title);
    font-size: 1.5rem;
    margin-bottom: 8px;
}

.card-version {
    font-family: var(--font-body);
    font-size: 0.85rem;
    font-weight: 400;
    color: var(--gold);
    background: rgba(240, 165, 0, 0.12);
    padding: 2px 10px;
    border-radius: 20px;
    margin-left: 8px;
    vertical-align: middle;
}

.download-card .card-desc {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 28px;
    line-height: 1.6;
}

.download-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 32px;
    border-radius: 50px;
    font-size: 0.95rem;
    font-weight: 600;
    font-family: var(--font-body);
    cursor: pointer;
    border: none;
    transition: var(--transition);
}

.download-btn.android-btn {
    background: linear-gradient(135deg, #3DDC84, #2FB86E);
    color: #fff;
    box-shadow: 0 4px 20px rgba(61, 220, 132, 0.3);
}

.download-btn.android-btn:hover {
    box-shadow: 0 6px 30px rgba(61, 220, 132, 0.5);
    transform: translateY(-2px);
}

.download-btn.android-btn.secondary {
    background: rgba(61, 220, 132, 0.15);
    border: 1px solid rgba(61, 220, 132, 0.3);
    box-shadow: none;
    font-size: 0.85rem;
    padding: 10px 20px;
}

.download-btn.android-btn.secondary:hover {
    background: rgba(61, 220, 132, 0.25);
    box-shadow: 0 4px 16px rgba(61, 220, 132, 0.2);
    transform: translateY(-2px);
}

.download-btn-group {
    display: flex;
    gap: 8px;
    justify-content: center;
    flex-wrap: wrap;
}

.download-notice {
    max-width: 700px;
    margin: 40px auto 0;
    padding: 24px;
    background: rgba(255, 255, 255, 0.04);
    border-radius: var(--radius-lg);
    border: 1px solid var(--card-border);
}

.download-notice p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 8px;
}

.download-notice p:last-child {
    margin-bottom: 0;
}

.download-btn.harmony-btn {
    background: rgba(255, 255, 255, 0.08);
    color: var(--text-muted);
    border: 1px solid rgba(255, 255, 255, 0.1);
    cursor: default;
}

.coming-soon-tag {
    display: inline-block;
    margin-top: 12px;
    padding: 4px 14px;
    border-radius: 50px;
    background: rgba(255, 107, 107, 0.12);
    color: var(--coral);
    font-size: 0.75rem;
    font-weight: 500;
}

/* ===== 更新日志区 ===== */
.changelog-section {
    position: relative;
    z-index: 1;
    padding: 100px 0;
}

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

.changelog-section .section-title {
    font-family: var(--font-title);
    font-size: clamp(2rem, 4vw, 3rem);
    margin-bottom: 16px;
}

.changelog-section .section-subtitle {
    color: var(--text-secondary);
}

.changelog-timeline {
    max-width: 700px;
    margin: 0 auto;
    position: relative;
}

.changelog-tabs {
    display: flex;
    gap: 8px;
    margin-bottom: 24px;
    justify-content: center;
}

.changelog-tab {
    padding: 8px 24px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 24px;
    background: rgba(255, 255, 255, 0.03);
    color: var(--text-muted);
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    font-family: var(--font-body);
}

.changelog-tab:hover {
    background: rgba(255, 255, 255, 0.08);
    color: var(--text-primary);
    border-color: rgba(255, 255, 255, 0.2);
}

.changelog-tab.active {
    background: linear-gradient(135deg, var(--coral), var(--gold));
    color: #fff;
    border-color: transparent;
    font-weight: 600;
    box-shadow: 0 4px 15px rgba(255, 107, 107, 0.3);
}

.changelog-timeline::before {
    content: '';
    position: absolute;
    top: 0;
    left: 20px;
    bottom: 0;
    width: 2px;
    background: linear-gradient(180deg, var(--coral), var(--gold), transparent);
}

.changelog-item {
    position: relative;
    padding-left: 56px;
    margin-bottom: 32px;
}

.changelog-item::before {
    content: '';
    position: absolute;
    left: 14px;
    top: 6px;
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: var(--coral);
    box-shadow: 0 0 12px rgba(255, 107, 107, 0.5);
    z-index: 1;
}

.changelog-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 8px;
    flex-wrap: wrap;
}

.changelog-version {
    font-family: var(--font-title);
    font-size: 1.2rem;
    color: var(--text-primary);
}

.changelog-date {
    font-size: 0.8rem;
    color: var(--text-muted);
}

.changelog-badge {
    padding: 3px 10px;
    border-radius: 50px;
    font-size: 0.7rem;
    font-weight: 600;
    color: #fff;
}

.changelog-highlights {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-bottom: 8px;
}

.highlight-tag {
    padding: 3px 10px;
    border-radius: 50px;
    font-size: 0.7rem;
    background: rgba(255, 255, 255, 0.06);
    color: var(--text-secondary);
    border: 1px solid rgba(255, 255, 255, 0.08);
}

.changelog-content h4 {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin: 8px 0 4px;
}

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

.changelog-content li {
    font-size: 0.8rem;
    color: var(--text-muted);
    padding: 2px 0;
    padding-left: 16px;
    position: relative;
}

.changelog-content li::before {
    content: '›';
    position: absolute;
    left: 0;
    color: var(--teal);
}

.changelog-more {
    text-align: center;
    margin-top: 40px;
}

.changelog-more a {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--coral);
    font-weight: 500;
    transition: var(--transition);
}

.changelog-more a:hover {
    color: var(--gold);
    gap: 10px;
}

/* ===== 关于区 ===== */
.about-section {
    position: relative;
    z-index: 1;
    padding: 100px 0;
}

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

.about-section .section-title {
    font-family: var(--font-title);
    font-size: clamp(2rem, 4vw, 3rem);
    margin-bottom: 16px;
}

.about-section .section-subtitle {
    color: var(--text-secondary);
}

.about-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.about-card {
    padding: 36px 28px;
    border-radius: var(--radius-lg);
    background: var(--card-bg);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    border: 1px solid var(--card-border);
    transition: var(--transition);
    text-align: center;
}

.about-card:hover {
    transform: translateY(-6px);
    border-color: rgba(255, 255, 255, 0.15);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
}

.about-card .card-icon {
    font-size: 2.5rem;
    margin-bottom: 20px;
}

.about-card .card-title {
    font-family: var(--font-title);
    font-size: 1.3rem;
    margin-bottom: 12px;
}

.about-card .card-text {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.7;
}

/* ===== Footer ===== */
.footer {
    position: relative;
    z-index: 1;
    padding: 40px 0;
    border-top: 1px solid var(--card-border);
}

.footer-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 20px;
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: 10px;
}

.footer-logo-icon {
    width: 32px;
    height: 32px;
    background: linear-gradient(135deg, var(--coral), var(--gold));
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.9rem;
    color: #fff;
    font-weight: 700;
    font-family: var(--font-title);
}

.footer-logo-img {
    width: 28px;
    height: 28px;
    border-radius: 6px;
    object-fit: cover;
}

.footer-logo-text {
    font-family: var(--font-title);
    font-size: 1.1rem;
    background: linear-gradient(135deg, var(--coral), var(--gold));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.footer-copyright {
    color: var(--text-muted);
    font-size: 0.8rem;
}

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

.footer-links a {
    color: var(--text-muted);
    font-size: 0.85rem;
    transition: var(--transition);
}

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

.footer-stats {
    font-size: 0.75rem;
    color: var(--text-muted);
    opacity: 0;
    transition: opacity 0.5s ease;
    pointer-events: none;
}

.footer-stats.visible {
    opacity: 1;
}

/* ===== 回到顶部 ===== */
.back-to-top {
    position: fixed;
    bottom: 32px;
    right: 32px;
    width: 44px;
    height: 44px;
    border-radius: 12px;
    background: rgba(255, 107, 107, 0.15);
    border: 1px solid rgba(255, 107, 107, 0.3);
    color: var(--coral);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 999;
    opacity: 0;
    transform: translateY(20px);
    transition: var(--transition);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.back-to-top.visible {
    opacity: 1;
    transform: translateY(0);
}

.back-to-top:hover {
    background: rgba(255, 107, 107, 0.25);
    transform: translateY(-2px);
}

/* ===== 滚动动画 ===== */
.scroll-reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.scroll-reveal.revealed {
    opacity: 1;
    transform: translateY(0);
}

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

@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(40px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

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

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

@keyframes glow {
    0%, 100% { box-shadow: 0 0 20px rgba(255, 107, 107, 0.2); }
    50% { box-shadow: 0 0 40px rgba(255, 107, 107, 0.4); }
}

/* ===== Changelog页面 ===== */
.changelog-page {
    position: relative;
    z-index: 1;
    padding: 120px 0 80px;
    min-height: 100vh;
}

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

.page-title {
    font-family: var(--font-title);
    font-size: clamp(2rem, 4vw, 3rem);
    margin-bottom: 12px;
}

.page-subtitle {
    color: var(--text-secondary);
    font-size: 1.1rem;
}

.changelog-platform-tag {
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 0.65rem;
    font-weight: 600;
}

.platform-android {
    background: rgba(61, 220, 132, 0.15);
    color: #3DDC84;
}

.platform-harmonyos {
    background: rgba(255, 107, 107, 0.15);
    color: var(--coral);
}

.platform-both {
    background: rgba(240, 165, 0, 0.15);
    color: var(--gold);
}

.platform-server {
    background: rgba(139, 92, 246, 0.15);
    color: #8B5CF6;
}

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
    .fs-tabs { width: 170px; }
    .fs-panel { padding: 24px; }
    .fs-panel-content { width: 220px; }
    .spotlight-inner { gap: 40px; }
    .spotlight-visual { width: 220px; }
    .spotlight-phone { width: 220px; height: 440px; }
}

@media (max-width: 968px) {
    .hero {
        flex-direction: column;
        padding: 100px 16px 60px;
        text-align: center;
        min-height: auto;
    }

    .hero-content {
        margin-right: 0;
        max-width: 100%;
    }

    .hero-badge {
        font-size: 13px;
        padding: 6px 16px;
    }

    .hero-title {
        font-size: 32px;
        line-height: 1.2;
    }

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

    .hero-description {
        font-size: 15px;
    }

    .hero-buttons {
        flex-direction: column;
        gap: 12px;
        width: 100%;
    }

    .btn {
        width: 100%;
        padding: 12px 24px;
    }

    .hero-stats {
        justify-content: center;
        flex-wrap: wrap;
        gap: 20px;
        margin-top: 32px;
    }

    .platform-tags {
        gap: 12px;
    }

    .platform-tag {
        padding: 8px 18px;
        font-size: 15px;
        gap: 6px;
    }

    .platform-new {
        font-size: 8px;
        top: -7px;
        right: -5px;
        padding: 1.5px 5px;
    }

    .stat-items {
        gap: 24px;
    }

    .stat-number {
        font-size: 22px;
    }

    .stat-label {
        font-size: 15px;
    }

    .hero-phone {
        margin-top: 40px;
        min-height: auto;
    }

    .phone-mockup {
        width: 280px;
        height: 560px;
    }
}

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

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

    .hero {
        padding: 100px 16px 60px;
    }

    .phone-mockup {
        width: 280px;
        height: 560px;
    }

    .feature-showcase { flex-direction: column; }
    .fs-tabs {
        flex-direction: row;
        width: 100%;
        border-right: none;
        border-bottom: 1px solid var(--card-border);
        overflow-x: auto;
        scrollbar-width: none;
        display: flex;
    }
    .fs-tabs::-webkit-scrollbar { display: none; }
    .fs-tab {
        border-left: none;
        border-bottom: 3px solid transparent;
        padding: 12px 14px;
        font-size: 0.8rem;
        flex: 1;
        min-width: 0;
        justify-content: center;
    }
    .fs-tab.active {
        border-left-color: transparent;
        border-bottom-color: var(--coral);
    }
    .fs-panel.active { flex-direction: column; gap: 20px; min-height: auto; }
    .fs-panel-content { width: 100%; justify-content: flex-start; }
    .fs-panel-demo { min-height: 200px; }
    .spotlight-inner, .spotlight-block.reverse .spotlight-inner { flex-direction: column; gap: 32px; }
    .spotlight-visual { width: 200px; }
    .spotlight-phone { width: 200px; height: 400px; }
    .spotlight-content { text-align: left; }
    .spotlight-steps { align-items: flex-start; }
    .stats-bar-inner { flex-wrap: wrap; gap: 12px; padding: 20px; }
    .sb-divider { display: none; }
    .sb-item { padding: 8px 16px; }

    .download-cards {
        flex-direction: column;
        align-items: center;
    }

    .about-cards {
        grid-template-columns: 1fr;
    }

    .footer-content {
        flex-direction: column;
        text-align: center;
    }

    .footer-links {
        justify-content: center;
    }

    .changelog-tabs {
        flex-wrap: nowrap;
        gap: 4px;
    }
    .changelog-tab {
        flex: 1;
        min-width: 0;
        padding: 8px 4px;
        font-size: 0.75rem;
        text-align: center;
        white-space: nowrap;
    }
}

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

    .hero-subtitle {
        font-size: 16px;
    }

    .phone-mockup {
        width: 260px;
        height: 520px;
        border-radius: 32px;
    }

    .fs-tab-text { display: none; }
    .fs-tab { padding: 10px 6px; }
    .fs-tab-icon { font-size: 1.3rem; }
    .spotlight-visual { width: 180px; }
    .spotlight-phone { width: 180px; height: 360px; }
    .sb-num { font-size: 1.5rem; }
    .sb-label { font-size: 0.75rem; }
    .sb-item { padding: 6px 10px; }

    .download-card {
        width: 100%;
        max-width: 320px;
    }

    .hero-stats {
        gap: 16px;
    }

    .platform-tags {
        flex-direction: column;
        gap: 10px;
        width: 100%;
    }

    .platform-tag {
        justify-content: center;
        width: 100%;
    }

    .stat-items {
        gap: 20px;
    }

    .stat-item {
        flex: 1;
        min-width: 80px;
    }
}