/* ========================================
   UU AI - 着陆页样式
   配色：粉橘/奶油色系（参考 logo 小熊配色）
   ======================================== */

/* ---------- 基础重置 ---------- */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* 主色调 - 粉橘/奶油色系（参考 logo 小熊） */
    --primary: #FF9E7A;
    --primary-dark: #F27E5C;
    --primary-light: #FFB899;
    --secondary: #FFC4A3;
    --accent: #FFB3C6;
    --accent-2: #FFD4B8;

    /* 中性色 - 温暖柔和 */
    --bg: #FFFBF7;
    --bg-soft: #FFF5EC;
    --bg-warm: #FFE8DA;
    --bg-card: rgba(255, 255, 255, 0.72);
    --bg-card-hover: rgba(255, 255, 255, 0.9);
    --border: rgba(255, 158, 122, 0.18);
    --border-hover: rgba(255, 158, 122, 0.45);
    --text: #4A3728;
    --text-soft: rgba(74, 55, 40, 0.68);
    --text-muted: rgba(74, 55, 40, 0.45);

    /* 渐变 - 温暖柔和 */
    --gradient-main: linear-gradient(135deg, #FF9E7A 0%, #FFB3C6 100%);
    --gradient-warm: linear-gradient(135deg, #FFC4A3 0%, #FF9E7A 100%);
    --gradient-text: linear-gradient(135deg, #FF9E7A 0%, #FFB3C6 50%, #FFC4A3 100%);
    --gradient-card: linear-gradient(145deg, rgba(255, 158, 122, 0.08) 0%, rgba(255, 179, 198, 0.05) 100%);

    /* 阴影 - 柔和 */
    --shadow-glow: 0 20px 60px -15px rgba(255, 158, 122, 0.35);
    --shadow-card: 0 10px 40px -10px rgba(255, 158, 122, 0.2);
    --shadow-button: 0 10px 30px -8px rgba(255, 158, 122, 0.45);

    /* 圆角 */
    --radius-sm: 10px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --radius-xl: 32px;
    --radius-full: 999px;

    /* 过渡 */
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
        "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* 背景装饰 - 整页柔和渐变 */
body::before {
    content: "";
    position: fixed;
    inset: 0;
    background:
        radial-gradient(ellipse at 15% 0%, rgba(255, 196, 163, 0.3) 0%, transparent 50%),
        radial-gradient(ellipse at 85% 100%, rgba(255, 179, 198, 0.25) 0%, transparent 50%),
        radial-gradient(ellipse at 50% 50%, rgba(255, 212, 184, 0.15) 0%, transparent 60%);
    pointer-events: none;
    z-index: 0;
}

/* ---------- 通用工具类 ---------- */
.gradient-text {
    background: var(--gradient-text);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    background-size: 200% 200%;
    animation: gradientShift 6s ease infinite;
}

@keyframes gradientShift {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

.section {
    position: relative;
    padding: 100px 0;
    z-index: 1;
}

.section-header {
    text-align: center;
    max-width: 720px;
    margin: 0 auto 60px;
}

.section-tag {
    display: inline-block;
    font-size: 13px;
    letter-spacing: 3px;
    font-weight: 600;
    color: var(--primary);
    padding: 6px 16px;
    border: 1px solid var(--border);
    border-radius: var(--radius-full);
    background: rgba(255, 255, 255, 0.6);
    margin-bottom: 20px;
}

.section-title {
    font-size: clamp(28px, 5vw, 44px);
    font-weight: 800;
    letter-spacing: -0.02em;
    line-height: 1.2;
    margin-bottom: 16px;
}

.section-subtitle {
    font-size: 17px;
    color: var(--text-soft);
    font-weight: 400;
}

/* ---------- 按钮 ---------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 16px 32px;
    font-size: 16px;
    font-weight: 600;
    border-radius: var(--radius-full);
    text-decoration: none;
    cursor: pointer;
    border: none;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    white-space: nowrap;
}

.btn-primary {
    background: var(--gradient-main);
    color: #fff;
    box-shadow: var(--shadow-button);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 16px 40px -8px rgba(255, 158, 122, 0.6);
}

.btn-ghost {
    background: rgba(255, 255, 255, 0.6);
    color: var(--text);
    border: 1px solid var(--border);
    backdrop-filter: blur(10px);
}

.btn-ghost:hover {
    background: rgba(255, 255, 255, 0.9);
    border-color: var(--border-hover);
    transform: translateY(-2px);
}

.btn-download {
    background: var(--gradient-main);
    color: #fff;
    padding: 20px 48px;
    font-size: 18px;
    box-shadow: 0 16px 50px -10px rgba(255, 158, 122, 0.7);
    position: relative;
}

.btn-download::before {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(255,255,255,0.35), transparent);
    opacity: 0;
    transition: opacity 0.3s;
}

.btn-download:hover {
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 24px 60px -10px rgba(255, 158, 122, 0.85);
}

.btn-download:hover::before {
    opacity: 1;
}

.btn-download::after {
    content: "";
    position: absolute;
    inset: -2px;
    border-radius: var(--radius-full);
    background: var(--gradient-main);
    filter: blur(20px);
    opacity: 0.5;
    z-index: -1;
    animation: pulseGlow 2.5s ease-in-out infinite;
}

@keyframes pulseGlow {
    0%, 100% { opacity: 0.4; }
    50% { opacity: 0.8; }
}

.download-icon {
    width: 20px;
    height: 20px;
}

/* ---------- 顶部导航 ---------- */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 18px 0;
    background: rgba(255, 251, 247, 0.75);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid transparent;
    transition: var(--transition);
}

.navbar.scrolled {
    padding: 12px 0;
    background: rgba(255, 251, 247, 0.95);
    border-bottom-color: var(--border);
    box-shadow: 0 4px 20px -10px rgba(255, 158, 122, 0.15);
}

.nav-container {
    width: 100%;
    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: 12px;
    text-decoration: none;
    color: var(--text);
}

.logo-img {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    background: var(--gradient-main);
    object-fit: cover;
}

.logo-text {
    font-size: 22px;
    font-weight: 800;
    letter-spacing: -0.02em;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 36px;
}

.nav-links a {
    color: var(--text-soft);
    text-decoration: none;
    font-size: 15px;
    font-weight: 500;
    transition: var(--transition);
    position: relative;
}

.nav-links a:not(.nav-download-btn):hover {
    color: var(--primary);
}

.nav-links a:not(.nav-download-btn)::after {
    content: "";
    position: absolute;
    bottom: -6px;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--gradient-main);
    transition: var(--transition);
    transform: translateX(-50%);
}

.nav-links a:not(.nav-download-btn):hover::after {
    width: 100%;
}

.nav-download-btn {
    padding: 10px 24px !important;
    background: var(--gradient-main);
    color: #fff !important;
    border-radius: var(--radius-full);
    box-shadow: 0 6px 20px -6px rgba(255, 158, 122, 0.5);
    font-weight: 600;
}

.nav-download-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 28px -6px rgba(255, 158, 122, 0.75);
}

.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.menu-toggle span {
    width: 24px;
    height: 2px;
    background: var(--text);
    border-radius: 2px;
    transition: var(--transition);
}

.menu-toggle.active span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}
.menu-toggle.active span:nth-child(2) {
    opacity: 0;
}
.menu-toggle.active span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* ---------- 首屏 ---------- */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 120px 0 60px;
    overflow: hidden;
}

.hero-bg-decor {
    position: absolute;
    inset: 0;
    pointer-events: none;
    overflow: hidden;
}

.decor-blob {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.5;
    animation: floatBlob 20s ease-in-out infinite;
}

.blob-1 {
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, #FFC4A3, transparent 70%);
    top: -100px;
    left: -100px;
}

.blob-2 {
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, #FFB3C6, transparent 70%);
    bottom: -200px;
    right: -150px;
    animation-delay: -7s;
}

.blob-3 {
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, #FFD4B8, transparent 70%);
    top: 40%;
    left: 50%;
    transform: translateX(-50%);
    animation-delay: -14s;
}

@keyframes floatBlob {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33% { transform: translate(50px, -30px) scale(1.1); }
    66% { transform: translate(-30px, 50px) scale(0.95); }
}

.blob-3 {
    animation-name: floatBlob3;
}

@keyframes floatBlob3 {
    0%, 100% { transform: translateX(-50%) translateY(0) scale(1); }
    50% { transform: translateX(-50%) translateY(-40px) scale(1.05); }
}

.hero-container {
    position: relative;
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    z-index: 1;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-content {
    max-width: 560px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: rgba(255, 255, 255, 0.7);
    border: 1px solid var(--border);
    border-radius: var(--radius-full);
    font-size: 13px;
    color: var(--text-soft);
    margin-bottom: 24px;
    backdrop-filter: blur(10px);
}

.badge-dot {
    width: 8px;
    height: 8px;
    background: #FF9E7A;
    border-radius: 50%;
    box-shadow: 0 0 8px #FF9E7A;
    animation: pulseDot 2s ease-in-out infinite;
}

@keyframes pulseDot {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.4; }
}

.hero-title {
    font-size: clamp(36px, 6vw, 64px);
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: -0.03em;
    margin-bottom: 24px;
}

.hero-desc {
    font-size: 17px;
    line-height: 1.75;
    color: var(--text-soft);
    margin-bottom: 32px;
}

.hero-meta {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 16px 24px;
    background: rgba(255, 255, 255, 0.7);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    margin-bottom: 32px;
    backdrop-filter: blur(10px);
}

.meta-item {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.meta-label {
    font-size: 12px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.meta-value {
    font-size: 18px;
    font-weight: 700;
    color: var(--text);
}

.meta-divider {
    width: 1px;
    height: 30px;
    background: var(--border);
}

.hero-actions {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

/* ---------- 截图展示 ---------- */
.screenshots {
    position: relative;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    perspective: 1000px;
}

.screenshot-card {
    position: relative;
    transition: var(--transition-slow);
    cursor: pointer;
}

.screenshot-card:nth-child(1) {
    transform: translateY(20px) rotateY(8deg);
}
.screenshot-card:nth-child(2) {
    transform: translateY(-10px) rotateY(-2deg);
    z-index: 2;
}
.screenshot-card:nth-child(3) {
    transform: translateY(20px) rotateY(-8deg);
}

.screenshot-card:hover {
    transform: translateY(-20px) scale(1.05) rotateY(0) !important;
    z-index: 10;
}

.screenshot-frame {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    background: linear-gradient(145deg, rgba(255, 196, 163, 0.25), rgba(255, 179, 198, 0.2));
    padding: 8px;
    border: 1px solid var(--border);
    box-shadow: 0 15px 50px -15px rgba(255, 158, 122, 0.3);
    aspect-ratio: 9 / 16;
    transition: var(--transition);
}

.screenshot-card:hover .screenshot-frame {
    border-color: var(--primary);
    box-shadow: 0 30px 80px -20px rgba(255, 158, 122, 0.5);
}

.screenshot-img-wrapper {
    width: 100%;
    height: 100%;
    border-radius: var(--radius-md);
    background: linear-gradient(160deg, #FFF5EC 0%, #FFE8DA 100%);
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}

.screenshot-img-wrapper img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    border-radius: var(--radius-md);
}

.screenshot-img-wrapper img:empty {
    background:
        linear-gradient(160deg, #FFF5EC 0%, #FFE8DA 100%);
}

.screenshot-placeholder-text {
    position: absolute;
    color: var(--text-muted);
    font-size: 13px;
    text-align: center;
    pointer-events: none;
}

.screenshot-tag {
    position: absolute;
    top: 12px;
    left: 12px;
    font-size: 11px;
    color: var(--text-soft);
    background: rgba(255, 255, 255, 0.85);
    padding: 4px 10px;
    border-radius: var(--radius-full);
    backdrop-filter: blur(8px);
    z-index: 2;
    font-weight: 500;
}

.screenshot-caption {
    text-align: center;
    margin-top: 16px;
    font-size: 14px;
    color: var(--text-soft);
    font-weight: 500;
    transition: var(--transition);
}

.screenshot-card:hover .screenshot-caption {
    color: var(--text);
    transform: translateY(-2px);
}

.screenshot-preview {
    display: none;
}

.scroll-hint {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    color: var(--text-muted);
    font-size: 12px;
    letter-spacing: 2px;
    animation: floatHint 2.5s ease-in-out infinite;
    cursor: pointer;
}

.scroll-arrow {
    width: 20px;
    height: 20px;
    border-right: 2px solid var(--text-muted);
    border-bottom: 2px solid var(--text-muted);
    transform: rotate(45deg);
}

@keyframes floatHint {
    0%, 100% { transform: translateX(-50%) translateY(0); opacity: 0.6; }
    50% { transform: translateX(-50%) translateY(8px); opacity: 1; }
}

/* ---------- 功能特点 ---------- */
.features {
    background: linear-gradient(180deg, transparent 0%, rgba(255, 232, 218, 0.35) 50%, transparent 100%);
}

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

.feature-card {
    padding: 36px 28px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    backdrop-filter: blur(10px);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-main);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s ease;
}

.feature-card:hover {
    transform: translateY(-6px);
    background: rgba(255, 255, 255, 0.9);
    border-color: var(--border-hover);
    box-shadow: var(--shadow-card);
}

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

.feature-icon {
    width: 56px;
    height: 56px;
    border-radius: var(--radius-md);
    background: var(--gradient-card);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    color: var(--primary);
    border: 1px solid var(--border);
    transition: var(--transition);
}

.feature-card:hover .feature-icon {
    color: #fff;
    background: var(--gradient-main);
    border-color: transparent;
    transform: scale(1.05) rotate(-5deg);
}

.feature-icon svg {
    width: 28px;
    height: 28px;
}

.feature-card h3 {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 10px;
}

.feature-card p {
    font-size: 15px;
    color: var(--text-soft);
    line-height: 1.7;
}

/* ---------- 用户评价 ---------- */
.reviews-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.review-card {
    padding: 32px 28px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    backdrop-filter: blur(10px);
    transition: var(--transition);
    position: relative;
}

.review-card:hover {
    transform: translateY(-4px);
    background: rgba(255, 255, 255, 0.9);
    border-color: var(--border-hover);
}

.review-stars {
    color: #FF9E7A;
    font-size: 18px;
    letter-spacing: 2px;
    margin-bottom: 16px;
}

.review-text {
    font-size: 16px;
    line-height: 1.75;
    color: var(--text);
    margin-bottom: 24px;
    font-style: italic;
}

.review-author {
    display: flex;
    align-items: center;
    gap: 12px;
}

.author-avatar {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--gradient-main);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    color: #fff;
    font-size: 18px;
}

.author-info {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.author-name {
    font-size: 15px;
    font-weight: 600;
    color: var(--text);
}

.author-meta {
    font-size: 13px;
    color: var(--text-muted);
}

/* ---------- 常见问题 ---------- */
.faq-list {
    max-width: 820px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.faq-item {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    overflow: hidden;
    transition: var(--transition);
    backdrop-filter: blur(10px);
}

.faq-item.active {
    border-color: var(--border-hover);
    background: rgba(255, 255, 255, 0.9);
}

.faq-question {
    width: 100%;
    padding: 22px 28px;
    background: none;
    border: none;
    color: var(--text);
    font-size: 16px;
    font-weight: 600;
    text-align: left;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: var(--transition);
    font-family: inherit;
}

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

.faq-icon {
    position: relative;
    width: 18px;
    height: 18px;
    flex-shrink: 0;
    margin-left: 16px;
}

.faq-icon::before,
.faq-icon::after {
    content: "";
    position: absolute;
    background: var(--primary);
    transition: var(--transition);
    border-radius: 2px;
}

.faq-icon::before {
    top: 50%;
    left: 0;
    width: 100%;
    height: 2px;
    transform: translateY(-50%);
}

.faq-icon::after {
    left: 50%;
    top: 0;
    width: 2px;
    height: 100%;
    transform: translateX(-50%);
}

.faq-item.active .faq-icon::after {
    transform: translateX(-50%) rotate(90deg);
    opacity: 0;
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.faq-answer p {
    padding: 0 28px 24px;
    font-size: 15px;
    line-height: 1.75;
    color: var(--text-soft);
}

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

.download-bg-decor {
    position: absolute;
    inset: 0;
    pointer-events: none;
    overflow: hidden;
}

.download-section .blob-1 {
    width: 600px;
    height: 600px;
    top: -200px;
    left: -150px;
}

.download-section .blob-2 {
    width: 500px;
    height: 500px;
    bottom: -150px;
    right: -100px;
}

.download-card {
    position: relative;
    max-width: 920px;
    margin: 0 auto;
    padding: 60px 48px;
    background:
        linear-gradient(145deg, rgba(255, 196, 163, 0.35), rgba(255, 179, 198, 0.25)),
        rgba(255, 255, 255, 0.85);
    border: 1px solid var(--border-hover);
    border-radius: var(--radius-xl);
    backdrop-filter: blur(20px);
    box-shadow: var(--shadow-glow);
    text-align: center;
    overflow: hidden;
}

.download-card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60%;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--primary), transparent);
}

.download-logo {
    width: 88px;
    height: 88px;
    margin: 0 auto 24px;
    padding: 6px;
    border-radius: 22px;
    background: var(--gradient-main);
    box-shadow: 0 12px 40px -10px rgba(255, 158, 122, 0.6);
    animation: logoFloat 4s ease-in-out infinite;
}

@keyframes logoFloat {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-8px); }
}

.download-logo-img {
    width: 100%;
    height: 100%;
    border-radius: 16px;
    object-fit: cover;
    background: #FFF5EC;
}

.download-content {
    max-width: 640px;
    margin: 0 auto;
}

.download-tag {
    display: inline-block;
    font-size: 14px;
    color: var(--primary);
    font-weight: 600;
    margin-bottom: 16px;
    letter-spacing: 1px;
}

.download-title {
    font-size: clamp(32px, 5vw, 48px);
    font-weight: 800;
    line-height: 1.15;
    letter-spacing: -0.02em;
    margin-bottom: 20px;
}

.download-desc {
    font-size: 17px;
    line-height: 1.75;
    color: var(--text-soft);
    margin-bottom: 32px;
}

.download-meta {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 36px;
}

.dl-meta-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    padding: 12px 20px;
    background: rgba(255, 255, 255, 0.7);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    min-width: 100px;
}

.dl-meta-label {
    font-size: 11px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.dl-meta-value {
    font-size: 16px;
    font-weight: 700;
    color: var(--text);
}

.btn-download {
    margin: 0 auto;
}

.download-note {
    margin-top: 20px;
    font-size: 13px;
    color: var(--text-muted);
}

/* ---------- 页脚 ---------- */
.footer {
    position: relative;
    padding: 60px 0 40px;
    border-top: 1px solid var(--border);
    background: rgba(255, 245, 236, 0.6);
    z-index: 1;
}

.footer-content {
    text-align: center;
}

.footer-brand {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 12px;
}

.footer-logo-img {
    width: 32px;
    height: 32px;
    border-radius: 8px;
    background: var(--gradient-main);
    object-fit: cover;
}

.footer-brand-text {
    font-size: 20px;
    font-weight: 800;
    letter-spacing: -0.02em;
}

.footer-tagline {
    font-size: 14px;
    color: var(--text-soft);
    margin-bottom: 24px;
}

.footer-links {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 24px;
    margin-bottom: 24px;
}

.footer-links a {
    color: var(--text-soft);
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    transition: var(--transition);
}

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

.footer-divider {
    width: 100%;
    max-width: 400px;
    height: 1px;
    background: var(--border);
    margin: 0 auto 24px;
}

.footer-copyright {
    font-size: 13px;
    color: var(--text-muted);
}

/* ---------- 滚动显现动画 ---------- */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ---------- 响应式 ---------- */
@media (max-width: 980px) {
    .hero-container {
        grid-template-columns: 1fr;
        gap: 50px;
        text-align: center;
    }

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

    .hero-badge,
    .hero-meta,
    .hero-actions {
        justify-content: center;
    }

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

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

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

@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        flex-direction: column;
        background: rgba(255, 251, 247, 0.98);
        backdrop-filter: blur(20px);
        padding: 30px;
        gap: 20px;
        border-bottom: 1px solid var(--border);
        transform: translateY(-150%);
        transition: var(--transition);
    }

    .nav-links.active {
        transform: translateY(0);
    }

    .menu-toggle {
        display: flex;
    }

    .section {
        padding: 70px 0;
    }

    .section-header {
        margin-bottom: 40px;
    }

    .screenshots {
        gap: 12px;
    }

    .screenshot-card:nth-child(1),
    .screenshot-card:nth-child(2),
    .screenshot-card:nth-child(3) {
        transform: none;
    }

    .screenshot-card:hover {
        transform: translateY(-8px) scale(1.03) !important;
    }

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

    .download-card {
        padding: 40px 24px;
    }

    .download-meta {
        gap: 8px;
    }

    .dl-meta-item {
        padding: 10px 14px;
        min-width: 80px;
    }

    .btn-download {
        width: 100%;
        padding: 18px 32px;
    }

    .hero-meta {
        flex-direction: row;
        flex-wrap: wrap;
        justify-content: center;
        gap: 16px;
    }
}

@media (max-width: 480px) {
    .container,
    .hero-container,
    .nav-container {
        padding: 0 16px;
    }

    .hero-meta {
        flex-direction: column;
        gap: 12px;
    }

    .meta-divider {
        width: 60px;
        height: 1px;
    }

    .hero-actions {
        flex-direction: column;
        width: 100%;
    }

    .hero-actions .btn {
        width: 100%;
    }

    .screenshots {
        grid-template-columns: 1fr;
        max-width: 280px;
        margin: 0 auto;
    }

    .review-card,
    .feature-card {
        padding: 24px 20px;
    }

    .download-card {
        padding: 32px 18px;
    }

    .footer-links {
        gap: 16px;
    }
}

/* ---------- 减少动画偏好 ---------- */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }

    html {
        scroll-behavior: auto;
    }

    .reveal {
        opacity: 1;
        transform: none;
    }
}