/**
 * @file website.css
 * @description Picvora 官方网站现代化专业设计系统
 * 采用深邃毛玻璃、Bento 网格、纯整数排版律、Dark/Light 双模自适应与 100% 纯矢量线框
 */

:root, html[data-theme="dark"] {
    --primary: #f59e0b;
    --primary-hover: #d97706;
    --primary-light: rgba(245, 158, 11, 0.12);
    --primary-border: rgba(245, 158, 11, 0.35);
    --primary-glow: rgba(245, 158, 11, 0.25);
    
    --success: #10b981;
    --success-light: rgba(16, 185, 129, 0.12);
    --info: #3b82f6;
    --info-light: rgba(59, 130, 246, 0.12);
    --warning: #f59e0b;
    --danger: #ef4444;

    --bg-body: #0a0a0d;
    --bg-header: rgba(13, 13, 17, 0.82);
    --bg-card: rgba(22, 22, 29, 0.72);
    --bg-card-hover: rgba(30, 30, 40, 0.9);
    --bg-card-solid: #16161d;
    --bg-subtle: rgba(255, 255, 255, 0.03);
    --bg-code: #121217;
    
    --border-subtle: rgba(255, 255, 255, 0.08);
    --border-medium: rgba(255, 255, 255, 0.14);
    --border-focus: #f59e0b;

    --text-title: #ffffff;
    --text-main: #f4f4f7;
    --text-muted: #9ca3af;
    --text-subtle: #6b7280;

    --shadow-header: 0 4px 20px rgba(0, 0, 0, 0.4);
    --shadow-card: 0 8px 24px rgba(0, 0, 0, 0.3);
    --shadow-hover: 0 16px 36px rgba(0, 0, 0, 0.45);
    --shadow-glow: 0 0 32px rgba(245, 158, 11, 0.2);

    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 14px;
    --radius-xl: 20px;
    --radius-full: 9999px;

    --transition-fast: 0.18s ease;
    --transition-normal: 0.28s cubic-bezier(0.16, 1, 0.3, 1);
}

html[data-theme="light"] {
    --primary: #d97706;
    --primary-hover: #b45309;
    --primary-light: rgba(217, 119, 6, 0.1);
    --primary-border: rgba(217, 119, 6, 0.3);
    --primary-glow: rgba(217, 119, 6, 0.18);
    
    --success: #059669;
    --success-light: rgba(5, 150, 105, 0.1);
    --info: #2563eb;
    --info-light: rgba(37, 99, 235, 0.1);
    --warning: #d97706;
    --danger: #dc2626;

    --bg-body: #f8fafc;
    --bg-header: rgba(255, 255, 255, 0.88);
    --bg-card: rgba(255, 255, 255, 0.85);
    --bg-card-hover: #ffffff;
    --bg-card-solid: #ffffff;
    --bg-subtle: rgba(0, 0, 0, 0.03);
    --bg-code: #f1f5f9;
    
    --border-subtle: rgba(0, 0, 0, 0.08);
    --border-medium: rgba(0, 0, 0, 0.14);
    --border-focus: #d97706;

    --text-title: #0f172a;
    --text-main: #1e293b;
    --text-muted: #475569;
    --text-subtle: #64748b;

    --shadow-header: 0 4px 16px rgba(0, 0, 0, 0.05);
    --shadow-card: 0 4px 18px rgba(0, 0, 0, 0.05);
    --shadow-hover: 0 12px 28px rgba(0, 0, 0, 0.09);
    --shadow-glow: 0 0 28px rgba(217, 119, 6, 0.16);
}

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

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

body {
    background-color: var(--bg-body);
    color: var(--text-main);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    line-height: 1.6;
    overflow-x: hidden;
    position: relative;
    transition: background-color var(--transition-normal), color var(--transition-normal);
}

/* 装饰性全局背景光晕 */
.bg-glow-orb {
    position: fixed;
    border-radius: 50%;
    filter: blur(120px);
    pointer-events: none;
    z-index: 0;
    opacity: 0.35;
    transition: opacity var(--transition-normal);
}

html[data-theme="light"] .bg-glow-orb {
    opacity: 0.18;
}

.bg-glow-1 {
    top: -120px;
    left: 15%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, var(--primary) 0%, transparent 70%);
}

.bg-glow-2 {
    top: 40%;
    right: -100px;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, #3b82f6 0%, transparent 70%);
    opacity: 0.15;
}

/* 页面容器约束 */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    position: relative;
    z-index: 1;
}

/* 统一矢量图标样式规范：纯线框 16x16，宽 1.6 */
.icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    width: 16px;
    height: 16px;
    vertical-align: middle;
}

.icon svg {
    width: 100%;
    height: 100%;
    stroke: currentColor;
    stroke-width: 1.6;
    stroke-linecap: round;
    stroke-linejoin: round;
    fill: none;
}

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

.icon-xl {
    width: 28px;
    height: 28px;
}

/* ---------------- 顶部导航栏 (Navbar) ---------------- */
.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background-color: var(--bg-header);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border-subtle);
    transition: background-color var(--transition-fast), border-color var(--transition-fast);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
}

.brand-link {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    color: var(--text-title);
    font-weight: 700;
    font-size: 18px;
    letter-spacing: -0.3px;
}

.brand-logo-img {
    width: 32px;
    height: 32px;
    border-radius: var(--radius-md);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

.brand-badge {
    font-size: 11px;
    font-weight: 600;
    padding: 2px 8px;
    border-radius: var(--radius-full);
    background-color: var(--primary-light);
    color: var(--primary);
    border: 1px solid var(--primary-border);
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 8px;
    list-style: none;
}

.nav-item-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 14px;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-muted);
    text-decoration: none;
    border-radius: var(--radius-md);
    transition: color var(--transition-fast), background-color var(--transition-fast);
}

.nav-item-link:hover,
.nav-item-link.active {
    color: var(--text-title);
    background-color: var(--bg-subtle);
}

.nav-item-link.active {
    color: var(--primary);
    font-weight: 600;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

/* 按钮通用体系 */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 9px 18px;
    font-size: 14px;
    font-weight: 600;
    border-radius: var(--radius-md);
    text-decoration: none;
    cursor: pointer;
    border: 1px solid transparent;
    transition: all var(--transition-normal);
    line-height: 1;
    white-space: nowrap;
}

.btn-primary {
    background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
    color: #ffffff;
    box-shadow: 0 4px 14px var(--primary-glow);
}

.btn-primary:hover {
    background: linear-gradient(135deg, #fbbf24 0%, #d97706 100%);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px var(--primary-glow);
}

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

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

.btn-ghost {
    background-color: transparent;
    color: var(--text-muted);
}

.btn-ghost:hover {
    color: var(--text-title);
    background-color: var(--bg-subtle);
}

.btn-icon-only {
    width: 36px;
    height: 36px;
    padding: 0;
    border-radius: var(--radius-md);
}

.mobile-toggle {
    display: none;
}

/* ---------------- Hero 英雄区域 ---------------- */
.hero-section {
    padding: 80px 0 60px;
    text-align: center;
    position: relative;
}

.hero-pill {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 16px;
    background-color: var(--primary-light);
    border: 1px solid var(--primary-border);
    border-radius: var(--radius-full);
    font-size: 13px;
    font-weight: 600;
    color: var(--primary);
    margin-bottom: 24px;
}

.hero-pill .pulse-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background-color: var(--primary);
    box-shadow: 0 0 10px var(--primary);
}

.hero-title {
    font-size: 48px;
    font-weight: 800;
    line-height: 1.18;
    color: var(--text-title);
    letter-spacing: -1px;
    max-width: 900px;
    margin: 0 auto 20px;
}

.hero-title-highlight {
    background: linear-gradient(135deg, #f59e0b 0%, #f97316 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-subtitle {
    font-size: 18px;
    color: var(--text-muted);
    max-width: 720px;
    margin: 0 auto 36px;
    line-height: 1.6;
}

.hero-cta-group {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
    margin-bottom: 32px;
}

.hero-meta-strip {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 24px;
    font-size: 13px;
    color: var(--text-subtle);
    flex-wrap: wrap;
    margin-bottom: 48px;
}

.hero-meta-item {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

/* 英雄区大图预览卡片与光晕展示框 */
.hero-visual-container {
    position: relative;
    max-width: 1060px;
    margin: 0 auto;
    border-radius: var(--radius-xl);
    padding: 8px;
    background: linear-gradient(135deg, rgba(245, 158, 11, 0.3) 0%, rgba(255, 255, 255, 0.05) 50%, rgba(59, 130, 246, 0.2) 100%);
    box-shadow: var(--shadow-glow), var(--shadow-hover);
}

.hero-browser-mockup {
    background-color: var(--bg-card-solid);
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--border-medium);
}

.mockup-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 16px;
    background-color: var(--bg-code);
    border-bottom: 1px solid var(--border-subtle);
}

.mockup-dots {
    display: flex;
    align-items: center;
    gap: 6px;
}

.mockup-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
}

.dot-red { background-color: #ef4444; }
.dot-yellow { background-color: #f59e0b; }
.dot-green { background-color: #10b981; }

.mockup-url-bar {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 12px;
    color: var(--text-subtle);
    background-color: var(--bg-card);
    padding: 4px 16px;
    border-radius: var(--radius-full);
    border: 1px solid var(--border-subtle);
    width: 50%;
    justify-content: center;
}

.mockup-content {
    position: relative;
    overflow: hidden;
}

.mockup-img {
    width: 100%;
    height: auto;
    display: block;
    transition: transform 0.5s ease;
}

/* 浮动标签与徽章 */
.floating-stat-badge {
    position: absolute;
    bottom: 24px;
    right: 24px;
    background-color: var(--bg-card);
    backdrop-filter: blur(12px);
    border: 1px solid var(--primary-border);
    border-radius: var(--radius-lg);
    padding: 12px 18px;
    display: flex;
    align-items: center;
    gap: 12px;
    box-shadow: var(--shadow-card);
}

.stat-number {
    font-size: 20px;
    font-weight: 700;
    color: var(--primary);
}

.stat-label {
    font-size: 12px;
    color: var(--text-muted);
}

/* ---------------- 板块通用规范 ---------------- */
.section-wrapper {
    padding: 90px 0;
    position: relative;
    border-top: 1px solid var(--border-subtle);
}

.section-head {
    text-align: center;
    max-width: 720px;
    margin: 0 auto 56px;
}

.section-tag {
    display: inline-block;
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 1px;
    text-transform: uppercase;
    color: var(--primary);
    margin-bottom: 12px;
}

.section-title {
    font-size: 32px;
    font-weight: 800;
    color: var(--text-title);
    letter-spacing: -0.5px;
    margin-bottom: 16px;
}

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

/* ---------------- Bento 便当盒网格 (首页卖点速览) ---------------- */
.bento-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.bento-card {
    background-color: var(--bg-card);
    backdrop-filter: blur(12px);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    padding: 28px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    position: relative;
    overflow: hidden;
    transition: transform var(--transition-normal), border-color var(--transition-normal), box-shadow var(--transition-normal);
}

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

.bento-card.span-2 {
    grid-column: span 2;
}

.card-icon-box {
    width: 44px;
    height: 44px;
    border-radius: var(--radius-md);
    background-color: var(--primary-light);
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
}

.bento-card-title {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-title);
    margin-bottom: 10px;
}

.bento-card-text {
    font-size: 14px;
    color: var(--text-muted);
    line-height: 1.6;
    margin-bottom: 18px;
}

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

.tag-badge {
    font-size: 11px;
    font-weight: 500;
    padding: 3px 10px;
    border-radius: var(--radius-full);
    background-color: var(--bg-subtle);
    color: var(--text-muted);
    border: 1px solid var(--border-subtle);
}

/* ---------------- 横向对比表格 ---------------- */
.matrix-card {
    background-color: var(--bg-card);
    backdrop-filter: blur(12px);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-xl);
    overflow-x: auto;
    box-shadow: var(--shadow-card);
}

.matrix-table {
    width: 100%;
    min-width: 1040px;
    border-collapse: collapse;
    font-size: 13px;
    text-align: left;
}

.matrix-table th, .matrix-table td {
    padding: 16px 18px;
    border-bottom: 1px solid var(--border-subtle);
    white-space: nowrap;
}

.matrix-table th {
    background-color: var(--bg-subtle);
    font-weight: 600;
    color: var(--text-muted);
    font-size: 13px;
}

.matrix-table th.col-highlight,
.matrix-table td.col-highlight {
    background-color: var(--primary-light);
    color: var(--text-title);
    font-weight: 600;
    border-left: 1px solid var(--primary-border);
    border-right: 1px solid var(--primary-border);
}

.matrix-table tr:last-child td {
    border-bottom: none;
}

.matrix-check {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--success);
    font-weight: 600;
}

.matrix-cross {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--text-subtle);
}

/* ---------------- 详细功能模块 (Features) ---------------- */
.features-container {
    display: flex;
    flex-direction: column;
    gap: 72px;
}

.feature-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: center;
}

.feature-row.reverse {
    direction: rtl;
}

.feature-row.reverse .feature-content {
    direction: ltr;
}

.feature-row.reverse .feature-visual {
    direction: ltr;
}

.feature-kicker {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 12px;
    font-weight: 700;
    color: var(--primary);
    background-color: var(--primary-light);
    border: 1px solid var(--primary-border);
    padding: 3px 10px;
    border-radius: var(--radius-full);
    margin-bottom: 14px;
}

.feature-title {
    font-size: 26px;
    font-weight: 800;
    color: var(--text-title);
    margin-bottom: 16px;
    line-height: 1.25;
}

.feature-desc {
    font-size: 15px;
    color: var(--text-muted);
    line-height: 1.68;
    margin-bottom: 24px;
}

.feature-bullets {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.feature-bullet-item {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    font-size: 14px;
    color: var(--text-main);
}

.bullet-icon {
    width: 18px;
    height: 18px;
    color: var(--primary);
    margin-top: 2px;
}

.feature-visual {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--border-medium);
    box-shadow: var(--shadow-card);
    background-color: var(--bg-card);
}

.feature-visual img {
    width: 100%;
    height: auto;
    display: block;
    transition: transform 0.4s ease;
}

.feature-visual:hover img {
    transform: scale(1.02);
}

/* 极客按键流交互展示条 */
.keyboard-bar {
    background-color: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    padding: 24px;
    display: flex;
    align-items: center;
    justify-content: space-around;
    flex-wrap: wrap;
    gap: 16px;
    margin-top: 36px;
}

.key-unit {
    display: flex;
    align-items: center;
    gap: 10px;
}

.kbd {
    display: inline-block;
    padding: 6px 12px;
    font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
    font-size: 12px;
    font-weight: 700;
    color: var(--text-title);
    background-color: var(--bg-code);
    border: 1px solid var(--border-medium);
    border-bottom: 3px solid var(--border-medium);
    border-radius: var(--radius-sm);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

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

/* 实验特性提示卡片与硬件差异说明 */
.labs-notice-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-medium);
    border-radius: var(--radius-lg);
    padding: 24px;
    margin-bottom: 40px;
    box-shadow: var(--shadow-card);
}

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

.labs-notice-title {
    font-size: 16px;
    font-weight: 700;
    color: var(--text-title);
    display: flex;
    align-items: center;
    gap: 8px;
}

.labs-notice-badge {
    font-size: 11px;
    font-weight: 600;
    padding: 3px 10px;
    border-radius: var(--radius-full);
    background-color: var(--primary-light);
    color: var(--primary);
    border: 1px solid var(--primary-border);
}

.labs-notice-desc {
    font-size: 13px;
    color: var(--text-muted);
    line-height: 1.6;
}

.labs-diff-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-top: 18px;
}

.labs-diff-item {
    background-color: var(--bg-subtle);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    padding: 16px;
}

.labs-diff-title {
    font-size: 13px;
    font-weight: 700;
    color: var(--text-title);
    margin-bottom: 6px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.labs-diff-text {
    font-size: 12px;
    color: var(--text-muted);
    line-height: 1.6;
}

/* ---------------- 下载页 (Download Section) ---------------- */
.download-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-bottom: 56px;
}

.download-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    padding: 32px 24px;
    text-align: center;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    transition: transform var(--transition-normal), border-color var(--transition-normal), box-shadow var(--transition-normal);
}

.download-card.highlight {
    border-color: var(--primary-border);
    background: linear-gradient(180deg, var(--primary-light) 0%, var(--bg-card) 60%);
    box-shadow: var(--shadow-glow);
}

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

.download-platform-icon {
    width: 56px;
    height: 56px;
    border-radius: var(--radius-lg);
    background-color: var(--bg-subtle);
    color: var(--text-title);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 16px;
}

.download-card.highlight .download-platform-icon {
    background-color: var(--primary);
    color: #ffffff;
}

.download-platform-name {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-title);
    margin-bottom: 8px;
}

.download-platform-desc {
    font-size: 13px;
    color: var(--text-muted);
    margin-bottom: 24px;
    line-height: 1.5;
}

.download-card-meta {
    font-size: 12px;
    color: var(--text-subtle);
    margin-top: 14px;
}

/* 安装步骤三步法 */
.install-guide-box {
    background-color: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-xl);
    padding: 36px;
}

.guide-steps-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
    position: relative;
}

.step-item {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.step-num-badge {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background-color: var(--primary-light);
    color: var(--primary);
    border: 1px solid var(--primary-border);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 14px;
}

.step-title {
    font-size: 16px;
    font-weight: 700;
    color: var(--text-title);
}

.step-text {
    font-size: 13px;
    color: var(--text-muted);
    line-height: 1.6;
}

.step-code-snippet {
    background-color: var(--bg-code);
    border: 1px solid var(--border-subtle);
    padding: 8px 12px;
    border-radius: var(--radius-sm);
    font-family: monospace;
    font-size: 12px;
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

/* 兼容性与安全指标清单 */
.specs-card-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    margin-top: 36px;
}

.spec-tile {
    background-color: var(--bg-subtle);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    padding: 16px;
    text-align: center;
}

.spec-title {
    font-size: 12px;
    color: var(--text-subtle);
    margin-bottom: 6px;
}

.spec-value {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-title);
}

/* ---------------- 版权与法律条款页 (Copyright Section) ---------------- */
.legal-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-xl);
    padding: 40px;
    box-shadow: var(--shadow-card);
}

.legal-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
}

.legal-block-title {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-title);
    margin-bottom: 14px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.legal-text {
    font-size: 14px;
    color: var(--text-muted);
    line-height: 1.7;
    margin-bottom: 16px;
}

.privacy-badge-group {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    margin-top: 14px;
}

.privacy-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 12px;
    padding: 4px 12px;
    border-radius: var(--radius-full);
    background-color: var(--success-light);
    color: var(--success);
    border: 1px solid rgba(16, 185, 129, 0.25);
}

.license-box {
    background-color: var(--bg-code);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    padding: 16px;
    font-family: monospace;
    font-size: 12px;
    color: var(--text-muted);
    line-height: 1.6;
    margin-top: 10px;
}

/* ---------------- 页脚 (Footer) ---------------- */
.site-footer {
    border-top: 1px solid var(--border-subtle);
    background-color: var(--bg-card-solid);
    padding: 60px 0 36px;
    margin-top: 80px;
}

.footer-top {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 48px;
}

.footer-brand-desc {
    font-size: 14px;
    color: var(--text-muted);
    line-height: 1.6;
    margin-top: 14px;
    max-width: 320px;
}

.footer-col-title {
    font-size: 14px;
    font-weight: 700;
    color: var(--text-title);
    margin-bottom: 18px;
}

.footer-links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.footer-links a {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 13px;
    transition: color var(--transition-fast);
}

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

.footer-bottom {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 24px;
    border-top: 1px solid var(--border-subtle);
    font-size: 13px;
    color: var(--text-subtle);
}

/* 轻量 Toast 提示框 */
.toast-notice {
    position: fixed;
    bottom: 24px;
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    background-color: var(--bg-card-solid);
    border: 1px solid var(--primary-border);
    color: var(--text-title);
    padding: 10px 20px;
    border-radius: var(--radius-full);
    font-size: 13px;
    font-weight: 600;
    box-shadow: var(--shadow-card);
    display: flex;
    align-items: center;
    gap: 8px;
    opacity: 0;
    pointer-events: none;
    transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.3s ease;
    z-index: 1000;
}

.toast-notice.show {
    transform: translateX(-50%) translateY(0);
    opacity: 1;
}

/* ---------------- 响应式断点适配 ---------------- */
@media (max-width: 992px) {
    .hero-title {
        font-size: 36px;
    }
    .bento-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .bento-card.span-2 {
        grid-column: span 1;
    }
    .feature-row {
        grid-template-columns: 1fr;
        gap: 32px;
    }
    .feature-row.reverse {
        direction: ltr;
    }
    .download-grid {
        grid-template-columns: 1fr;
    }
    .guide-steps-grid {
        grid-template-columns: 1fr;
    }
    .legal-grid {
        grid-template-columns: 1fr;
    }
    .footer-top {
        grid-template-columns: 1fr 1fr;
    }
    .specs-card-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .container {
        padding: 0 16px;
    }
    .header-inner {
        height: 56px;
    }
    .nav-menu {
        display: none;
        position: absolute;
        top: 56px;
        left: 0;
        right: 0;
        background-color: var(--bg-card-solid);
        border-bottom: 1px solid var(--border-subtle);
        flex-direction: column;
        padding: 16px;
        box-shadow: var(--shadow-card);
    }
    .nav-menu.open {
        display: flex;
    }
    .mobile-toggle {
        display: inline-flex;
    }
    .hero-section {
        padding: 48px 0 40px;
    }
    .hero-title {
        font-size: 28px;
    }
    .hero-subtitle {
        font-size: 15px;
    }
    .bento-grid {
        grid-template-columns: 1fr;
    }
    .matrix-card {
        overflow-x: auto;
    }
    .footer-top {
        grid-template-columns: 1fr;
    }
    .footer-bottom {
        flex-direction: column;
        gap: 12px;
        text-align: center;
    }
}

/* ---------------- 现代视窗海报与大图灯箱系统 (Lightbox System) ---------------- */
.mockup-zoomable {
    position: relative;
    cursor: zoom-in;
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.mockup-zoomable:hover {
    transform: translateY(-4px);
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.4), 0 0 24px var(--primary-glow);
}

.mockup-zoomable::after {
    content: "点击全屏审阅原画";
    position: absolute;
    bottom: 14px;
    right: 14px;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 14px;
    font-size: 12px;
    font-weight: 600;
    color: #ffffff;
    background-color: rgba(15, 23, 42, 0.78);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border: 1px solid rgba(255, 255, 255, 0.16);
    border-radius: var(--radius-full);
    opacity: 0;
    transform: translateY(6px);
    transition: opacity var(--transition-fast), transform var(--transition-fast);
    pointer-events: none;
    z-index: 10;
}

.mockup-zoomable:hover::after {
    opacity: 1;
    transform: translateY(0);
}

/* 全屏毛玻璃 Lightbox 遮罩层 */
.lightbox-modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: rgba(10, 10, 13, 0.9);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-normal), visibility var(--transition-normal);
}

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

.lightbox-dialog {
    position: relative;
    max-width: 92vw;
    max-height: 90vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    animation: lightboxPop 0.28s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

@keyframes lightboxPop {
    from {
        opacity: 0;
        transform: scale(0.95);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.lightbox-header {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 12px;
    padding: 0 4px;
}

.lightbox-title-box {
    display: flex;
    align-items: center;
    gap: 10px;
}

.lightbox-title {
    font-size: 14px;
    font-weight: 600;
    color: #ffffff;
    letter-spacing: -0.2px;
}

.lightbox-counter {
    font-size: 11px;
    font-weight: 600;
    color: var(--primary);
    background-color: var(--primary-light);
    border: 1px solid var(--primary-border);
    padding: 2px 8px;
    border-radius: var(--radius-full);
}

.lightbox-close-btn {
    width: 32px;
    height: 32px;
    border-radius: var(--radius-md);
    background-color: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.14);
    color: #ffffff;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.lightbox-close-btn:hover {
    background-color: rgba(239, 68, 68, 0.2);
    border-color: #ef4444;
    color: #ef4444;
}

.lightbox-stage {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.lightbox-img {
    max-width: 90vw;
    max-height: 80vh;
    border-radius: var(--radius-lg);
    box-shadow: 0 24px 60px rgba(0, 0, 0, 0.6), 0 0 0 1px rgba(255, 255, 255, 0.1);
    object-fit: contain;
    user-select: none;
    -webkit-user-drag: none;
}

.lightbox-nav-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background-color: rgba(15, 23, 42, 0.72);
    border: 1px solid rgba(255, 255, 255, 0.18);
    color: #ffffff;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    backdrop-filter: blur(8px);
    transition: all var(--transition-fast);
    z-index: 20;
}

.lightbox-nav-btn:hover {
    background-color: var(--primary);
    border-color: var(--primary);
    transform: translateY(-50%) scale(1.08);
}

.lightbox-btn-prev {
    left: -54px;
}

.lightbox-btn-next {
    right: -54px;
}

@media (max-width: 1024px) {
    .lightbox-btn-prev { left: 12px; }
    .lightbox-btn-next { right: 12px; }
}

.lightbox-footer {
    margin-top: 10px;
    font-size: 12px;
    color: rgba(255, 255, 255, 0.45);
    text-align: center;
}