/* ========================================
   富安娜「智眠」AI辅助睡眠系统 - 样式表
   ======================================== */

/* ---- CSS Variables ---- */
:root {
    --bg-primary: #0a1628;
    --bg-secondary: #0d1f3c;
    --bg-card: rgba(255,255,255,0.04);
    --bg-card-hover: rgba(255,255,255,0.08);
    --text-primary: #e8edf5;
    --text-secondary: #8b9bb5;
    --text-muted: #5a6a85;
    --accent: #6c9ce0;
    --accent-light: #8ab4f8;
    --accent-glow: rgba(108,156,224,0.3);
    --gold: #c9a96e;
    --gold-light: #e0c78a;
    --gradient-primary: linear-gradient(135deg, #0d1f3c 0%, #1a2d4a 50%, #0a1628 100%);
    --gradient-hero: linear-gradient(180deg, #0a1628 0%, #0d1f3c 40%, #132644 100%);
    --gradient-card: linear-gradient(145deg, rgba(255,255,255,0.05) 0%, rgba(255,255,255,0.02) 100%);
    --gradient-accent: linear-gradient(135deg, #6c9ce0 0%, #4a7bd4 100%);
    --shadow-card: 0 4px 24px rgba(0,0,0,0.3);
    --shadow-glow: 0 0 40px rgba(108,156,224,0.15);
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 28px;
    --font-sans: -apple-system, BlinkMacSystemFont, 'HarmonyOS Sans SC', 'HarmonyOS Sans', 'PingFang SC', 'Microsoft YaHei', 'Segoe UI', 'Roboto', 'Noto Sans SC', system-ui, sans-serif;
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ---- Reset & Base ---- */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* Utility */
.u-hidden { display: none; }
.btn-block { width: 100%; }

/* Eliminate 300ms tap delay on iOS */
a, button, .nav-link, .scene-btn, .opt-btn, .feature-card,
.audio-cat, .care-card, .channel-card, .product-card,
.dimension span, .sound-tag, .dim-tags span, .format-badge,
.fab-qrcode, .back-to-top, .back-to-home {
    touch-action: manipulation;
    -webkit-tap-highlight-color: transparent;
}

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

body {
    font-family: var(--font-sans);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overscroll-behavior-y: none;
    -webkit-overflow-scrolling: touch;
    min-height: 100vh;
    min-height: 100dvh;
}

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

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

ul { list-style: none; }

img { max-width: 100%; display: block; }

/* iOS/Cross-platform form reset */
input, select, textarea, button {
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
    border-radius: 0;
}

input[type="range"] {
    -webkit-appearance: none;
    appearance: none;
    background: transparent;
}

input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
}

/* ---- Navigation ---- */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(10, 22, 40, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255,255,255,0.06);
    transition: var(--transition);
    padding-top: env(safe-area-inset-top);
}

.navbar.scrolled {
    background: rgba(10, 22, 40, 0.95);
    box-shadow: 0 2px 20px rgba(0,0,0,0.3);
}

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

.nav-brand {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: 0.5px;
}

.brand-icon { font-size: 1.5rem; }

.brand-logo {
    height: 24px;
    width: auto;
    display: block;
}

.brand-highlight {
    color: var(--accent-light);
    font-weight: 300;
}

.nav-menu {
    display: flex;
    gap: 4px;
}

.nav-link {
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 0.9rem;
    color: var(--text-secondary);
    transition: var(--transition);
    position: relative;
}

.nav-link:hover,
.nav-link.active {
    color: var(--text-primary);
    background: rgba(255,255,255,0.06);
}

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

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

/* ---- Hero Section ---- */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: var(--gradient-hero);
    overflow: hidden;
    padding-top: 64px;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse at 70% 30%, rgba(108,156,224,0.08) 0%, transparent 60%),
        radial-gradient(ellipse at 20% 70%, rgba(201,169,110,0.06) 0%, transparent 50%);
}

.hero-particles {
    position: absolute;
    inset: 0;
    pointer-events: none;
}

.particle {
    position: absolute;
    width: 2px;
    height: 2px;
    background: var(--accent);
    border-radius: 50%;
    animation: floatUp linear infinite;
    opacity: 0;
}

@keyframes floatUp {
    0% { transform: translateY(100vh) scale(0); opacity: 0; }
    10% { opacity: 1; }
    90% { opacity: 0.5; }
    100% { transform: translateY(-10vh) scale(1.5); opacity: 0; }
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-subtitle {
    font-size: 0.8rem;
    letter-spacing: 4px;
    color: var(--accent-light);
    text-transform: uppercase;
    margin-bottom: 16px;
}

.hero-title {
    font-size: 3.2rem;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 20px;
}

.title-line {
    display: block;
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--accent-light) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.title-brand {
    display: block;
    font-size: 1.8rem;
    font-weight: 300;
    color: var(--gold-light);
    margin-top: 8px;
}

.hero-desc {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 8px;
    font-weight: 300;
}

.hero-meta {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 32px;
}

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

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 32px;
    border-radius: 28px;
    font-size: 1rem;
    font-weight: 600;
    border: none;
    cursor: pointer;
    transition: var(--transition);
    font-family: inherit;
}

.btn-primary {
    background: var(--gradient-accent);
    color: #fff;
    box-shadow: 0 4px 16px rgba(108,156,224,0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(108,156,224,0.4);
}

.btn-outline {
    background: transparent;
    color: var(--text-primary);
    border: 1px solid rgba(255,255,255,0.2);
}

.btn-outline:hover {
    border-color: var(--accent);
    background: rgba(108,156,224,0.1);
}

.hero-stats {
    display: flex;
    gap: 32px;
}

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

.stat-num {
    font-size: 1.8rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--gold-light) 0%, var(--gold) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

.hero-visual {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 400px;
}

.moon-orb {
    width: 200px;
    height: 200px;
    border-radius: 50%;
    background: radial-gradient(circle at 40% 40%, rgba(201,169,110,0.6) 0%, rgba(108,156,224,0.3) 40%, rgba(10,22,40,0) 70%);
    animation: orbPulse 4s ease-in-out infinite;
    box-shadow: 0 0 80px rgba(108,156,224,0.2);
}

@keyframes orbPulse {
    0%, 100% { transform: scale(1); opacity: 0.8; }
    50% { transform: scale(1.1); opacity: 1; }
}

.sleep-wave {
    position: absolute;
    bottom: 50px;
    width: 300px;
    height: 80px;
    background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 300 80'%3E%3Cpath d='M0 40 Q37.5 10 75 40 Q112.5 70 150 40 Q187.5 10 225 40 Q262.5 70 300 40' fill='none' stroke='rgba(108,156,224,0.2)' stroke-width='2'/%3E%3C/svg%3E") repeat-x;
    background-size: 150px 40px;
    animation: waveShift 6s linear infinite;
    opacity: 0.4;
}

@keyframes waveShift {
    0% { background-position-x: 0; }
    100% { background-position-x: 150px; }
}

/* ---- Section Common ---- */
section {
    padding: 100px 0;
    position: relative;
}

section:nth-child(even) {
    background: var(--bg-secondary);
}

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

.section-tag {
    display: inline-block;
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 0.8rem;
    color: var(--accent-light);
    background: rgba(108,156,224,0.1);
    border: 1px solid rgba(108,156,224,0.2);
    margin-bottom: 16px;
    letter-spacing: 2px;
}

.section-title {
    font-size: 2.4rem;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.section-desc {
    font-size: 1.05rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* ---- Features Overview ---- */
.features-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.feature-card {
    background: var(--gradient-card);
    border: 1px solid rgba(255,255,255,0.06);
    border-radius: var(--radius-lg);
    padding: 36px 28px;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--gradient-accent);
    opacity: 0;
    transition: var(--transition);
}

.feature-card:hover {
    transform: translateY(-4px);
    border-color: rgba(108,156,224,0.2);
    box-shadow: var(--shadow-glow);
}

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

.feature-icon {
    font-size: 2.5rem;
    margin-bottom: 16px;
}

.feature-card h3 {
    font-size: 1.3rem;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.feature-pain {
    font-size: 0.9rem;
    color: #e07070;
    margin-bottom: 8px;
}

.feature-solution {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 20px;
    line-height: 1.5;
}

.card-link {
    font-size: 0.85rem;
    color: var(--accent-light);
    font-weight: 600;
    transition: var(--transition);
}

.card-link:hover { color: var(--gold-light); }

/* ---- Sleep Aid Section ---- */
.audio-categories {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-bottom: 48px;
}

.audio-cat {
    background: var(--bg-card);
    border: 1px solid rgba(255,255,255,0.06);
    border-radius: var(--radius-lg);
    padding: 32px;
    text-align: center;
    transition: var(--transition);
}

.audio-cat:hover {
    border-color: rgba(108,156,224,0.2);
    background: var(--bg-card-hover);
}

.cat-icon { font-size: 2.8rem; margin-bottom: 12px; }

.audio-cat h3 { font-size: 1.1rem; margin-bottom: 8px; }

.audio-cat p {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 16px;
}

.sound-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    justify-content: center;
}

.sound-tag {
    padding: 4px 12px;
    border-radius: 14px;
    font-size: 0.8rem;
    background: rgba(108,156,224,0.1);
    color: var(--accent-light);
    border: 1px solid rgba(108,156,224,0.15);
}

/* ---- Audio Player ---- */
.audio-player {
    background: var(--bg-card);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: var(--radius-xl);
    padding: 40px;
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
}

.player-visual {
    position: relative;
    width: 120px;
    height: 120px;
    margin: 0 auto 24px;
}

.visual-ring {
    position: absolute;
    inset: 0;
    border-radius: 50%;
    border: 2px solid rgba(108,156,224,0.2);
    animation: ringPulse 2s ease-in-out infinite;
}

.ring-2 { inset: 10px; animation-delay: 0.3s; }
.ring-3 { inset: 20px; animation-delay: 0.6s; }

@keyframes ringPulse {
    0%, 100% { transform: scale(1); opacity: 0.5; }
    50% { transform: scale(1.05); opacity: 1; }
}

.player-visual.playing .visual-ring {
    border-color: rgba(108,156,224,0.5);
    animation-duration: 1s;
}

.visual-center {
    position: absolute;
    inset: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    border-radius: 50%;
    background: rgba(108,156,224,0.1);
}

.player-info {
    margin-bottom: 24px;
}

.playing-label {
    display: block;
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-bottom: 4px;
}

.playing-title {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--text-primary);
}

.player-controls {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 24px;
    margin-bottom: 24px;
}

.ctrl-btn {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    border: 1px solid rgba(255,255,255,0.15);
    background: rgba(255,255,255,0.05);
    color: var(--text-primary);
    font-size: 1.2rem;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
}

.ctrl-btn:hover {
    background: rgba(108,156,224,0.2);
    border-color: var(--accent);
}

.ctrl-play {
    width: 64px;
    height: 64px;
    font-size: 1.5rem;
    background: var(--gradient-accent);
    border: none;
    box-shadow: 0 4px 16px rgba(108,156,224,0.3);
}

.ctrl-play:hover {
    transform: scale(1.05);
    box-shadow: 0 8px 24px rgba(108,156,224,0.4);
}

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

.opt-btn {
    padding: 8px 20px;
    border-radius: 20px;
    border: 1px solid rgba(255,255,255,0.1);
    background: transparent;
    color: var(--text-secondary);
    font-size: 0.85rem;
    cursor: pointer;
    transition: var(--transition);
    font-family: inherit;
}

.opt-btn.active,
.opt-btn:hover {
    background: rgba(108,156,224,0.15);
    border-color: var(--accent);
    color: var(--accent-light);
}

.player-scenes {
    display: flex;
    gap: 8px;
    justify-content: center;
    flex-wrap: wrap;
    align-items: center;
}

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

.scene-btn {
    padding: 8px 16px;
    border-radius: 20px;
    border: 1px solid rgba(255,255,255,0.08);
    background: transparent;
    color: var(--text-secondary);
    font-size: 0.85rem;
    cursor: pointer;
    transition: var(--transition);
    font-family: inherit;
}

.scene-btn.active,
.scene-btn:hover {
    background: rgba(108,156,224,0.15);
    border-color: var(--accent);
    color: var(--accent-light);
}

/* Audio progress & volume */
.player-time {
    display: flex;
    align-items: center;
    gap: 11px;
    margin-bottom: 20px;
    font-size: 0.8rem;
    color: var(--text-muted);
    max-width: 400px;
    margin-left: auto;
    margin-right: auto;
}

.player-time input[type="range"] {
    flex: 1;
    height: 4px;
    -webkit-appearance: none;
    appearance: none;
    background: rgba(255,255,255,0.1);
    border-radius: 2px;
    outline: none;
    cursor: pointer;
}

.player-time input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: var(--accent-light);
    cursor: pointer;
    border: none;
}

.player-volume {
    display: flex;
    align-items: center;
    gap: 10px;
    justify-content: center;
    margin-bottom: 20px;
    max-width: 200px;
    margin-left: auto;
    margin-right: auto;
}

.player-volume span { font-size: 1rem; }

.player-volume input[type="range"] {
    flex: 1;
    height: 4px;
    -webkit-appearance: none;
    appearance: none;
    background: rgba(255,255,255,0.1);
    border-radius: 2px;
    outline: none;
    cursor: pointer;
}

.player-volume input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: var(--accent-light);
    cursor: pointer;
    border: none;
}

/* ---- Monitor Section ---- */
.monitor-flow {
    display: flex;
    align-items: flex-start;
    justify-content: center;
    gap: 16px;
    margin-bottom: 48px;
    flex-wrap: wrap;
}

.flow-step {
    background: var(--bg-card);
    border: 1px solid rgba(255,255,255,0.06);
    border-radius: var(--radius-lg);
    padding: 28px 20px;
    text-align: center;
    width: 180px;
    transition: var(--transition);
    position: relative;
}

.flow-step:hover {
    border-color: rgba(108,156,224,0.2);
    transform: translateY(-4px);
}

.flow-icon { font-size: 2.2rem; margin-bottom: 8px; }

.flow-num {
    display: block;
    font-size: 0.75rem;
    color: var(--accent-light);
    margin-bottom: 8px;
}

.flow-step h4 {
    font-size: 1rem;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.flow-step p {
    font-size: 0.8rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

.flow-arrow {
    display: flex;
    align-items: center;
    font-size: 1.5rem;
    color: var(--text-muted);
    padding-top: 40px;
}

.monitor-features {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-bottom: 48px;
}

.monitor-feat {
    text-align: center;
    padding: 24px;
    background: var(--bg-card);
    border-radius: var(--radius-md);
    border: 1px solid rgba(255,255,255,0.04);
}

.monitor-feat h4 { font-size: 1rem; margin-bottom: 8px; }

.monitor-feat p { font-size: 0.85rem; color: var(--text-secondary); }

/* Sleep Report Preview */
.sleep-report-preview {
    max-width: 500px;
    margin: 0 auto;
}

.report-card {
    background: var(--bg-card);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: var(--radius-lg);
    padding: 28px;
}

.report-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
    flex-wrap: wrap;
    gap: 8px;
}

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

.report-score {
    font-size: 1rem;
    color: var(--text-primary);
}

.report-score strong {
    font-size: 2rem;
    color: var(--accent-light);
    margin-left: 4px;
}

.report-chart {
    display: flex;
    align-items: flex-end;
    gap: 16px;
    height: 150px;
    margin-bottom: 24px;
    justify-content: center;
}

.chart-bar {
    width: 50px;
    border-radius: 8px 8px 0 0;
    background: linear-gradient(180deg, var(--accent) 0%, rgba(108,156,224,0.3) 100%);
    position: relative;
    display: flex;
    justify-content: center;
    min-height: 30px;
}

.chart-bar span {
    position: absolute;
    bottom: -24px;
    font-size: 0.75rem;
    color: var(--text-muted);
}

.report-insight {
    background: rgba(108,156,224,0.08);
    border-radius: var(--radius-sm);
    padding: 16px;
}

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

/* ---- Care Section ---- */
.care-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    margin-bottom: 32px;
}

.care-card {
    background: var(--gradient-card);
    border: 1px solid rgba(255,255,255,0.06);
    border-radius: var(--radius-lg);
    padding: 28px;
    transition: var(--transition);
}

.care-card:hover {
    transform: translateY(-4px);
    border-color: rgba(108,156,224,0.2);
}

.care-card-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
}

.care-icon { font-size: 2rem; }

.care-card-header h3 { font-size: 1.1rem; color: var(--text-primary); }

.care-card ul li {
    font-size: 0.85rem;
    color: var(--text-secondary);
    padding: 6px 0;
    border-bottom: 1px solid rgba(255,255,255,0.03);
    position: relative;
    padding-left: 16px;
}

.care-card ul li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--accent);
}

.care-formats {
    display: flex;
    gap: 12px;
    justify-content: center;
    flex-wrap: wrap;
    padding: 24px;
    background: var(--bg-card);
    border-radius: var(--radius-md);
}

.format-badge {
    padding: 10px 20px;
    border-radius: 20px;
    font-size: 0.9rem;
    background: rgba(108,156,224,0.08);
    border: 1px solid rgba(108,156,224,0.15);
    color: var(--text-secondary);
}

/* ---- Shopping Section ---- */
.shop-dimensions {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 24px;
    margin-bottom: 40px;
}

.dimension {
    background: var(--bg-card);
    border: 1px solid rgba(255,255,255,0.06);
    border-radius: var(--radius-lg);
    padding: 24px;
    text-align: center;
}

.dimension h3 {
    font-size: 1rem;
    margin-bottom: 16px;
    color: var(--text-primary);
}

.dim-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    justify-content: center;
}

.dim-tags span {
    padding: 5px 14px;
    border-radius: 14px;
    font-size: 0.8rem;
    background: rgba(255,255,255,0.04);
    border: 1px solid rgba(255,255,255,0.08);
    color: var(--text-secondary);
    cursor: pointer;
    transition: var(--transition);
}

.dim-tags span:hover {
    background: rgba(108,156,224,0.15);
    border-color: var(--accent);
    color: var(--accent-light);
}

.ai-recommend {
    margin-bottom: 40px;
}

.recommend-box {
    display: flex;
    align-items: center;
    gap: 24px;
    background: linear-gradient(135deg, rgba(108,156,224,0.08) 0%, rgba(201,169,110,0.05) 100%);
    border: 1px solid rgba(108,156,224,0.15);
    border-radius: var(--radius-xl);
    padding: 32px 36px;
    flex-wrap: wrap;
}

.recommend-icon { font-size: 3rem; }

.recommend-content { flex: 1; min-width: 200px; }

.recommend-content h3 {
    font-size: 1.2rem;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.recommend-content p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

.compare-preview { max-width: 700px; margin: 0 auto; overflow-x: auto; -webkit-overflow-scrolling: touch; }

.compare-preview h3 {
    text-align: center;
    margin-bottom: 20px;
    font-size: 1.1rem;
    color: var(--text-secondary);
}

.compare-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
}

.compare-table th,
.compare-table td {
    padding: 12px 16px;
    text-align: center;
    border-bottom: 1px solid rgba(255,255,255,0.06);
}

.compare-table th {
    background: rgba(108,156,224,0.1);
    color: var(--accent-light);
    font-weight: 600;
}

.compare-table td { color: var(--text-secondary); }

.compare-table tbody tr:hover td {
    background: rgba(255,255,255,0.02);
}

/* ---- Product Cards ---- */
.subsection-title {
    text-align: center;
    font-size: 1.2rem;
    color: var(--text-primary);
    margin-bottom: 28px;
}

.product-cards {
    margin-bottom: 40px;
}

.product-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.product-card {
    background: var(--gradient-card);
    border: 1px solid rgba(255,255,255,0.06);
    border-radius: var(--radius-lg);
    padding: 24px;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    gap: 16px;
    align-items: flex-start;
}

.product-card:hover {
    transform: translateY(-4px);
    border-color: rgba(108,156,224,0.25);
    box-shadow: var(--shadow-glow);
}

.product-img {
    font-size: 2.5rem;
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-md);
    background: rgba(108,156,224,0.08);
    flex-shrink: 0;
}

.product-info h4 {
    font-size: 1rem;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.product-desc {
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-bottom: 8px;
    line-height: 1.5;
}

.product-price {
    font-size: 0.85rem;
    color: var(--accent-light);
    font-weight: 600;
}

/* ---- Purchase Channels ---- */
.purchase-channels {
    margin-bottom: 40px;
}

.channel-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.channel-card {
    background: var(--gradient-card);
    border: 1px solid rgba(255,255,255,0.06);
    border-radius: var(--radius-lg);
    padding: 32px 20px;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
}

.channel-card:hover {
    transform: translateY(-4px);
    border-color: rgba(108,156,224,0.25);
    box-shadow: var(--shadow-glow);
    background: rgba(108,156,224,0.06);
}

.channel-icon {
    font-size: 2.8rem;
    margin-bottom: 12px;
}

.channel-card h4 {
    font-size: 1.1rem;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.channel-card > p {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 12px;
}

.channel-link {
    font-size: 0.85rem;
    color: var(--accent-light);
    font-weight: 600;
}

/* ---- QR Modal ---- */
.qr-modal {
    text-align: center;
}

.qr-image {
    margin: 20px auto;
    max-width: 260px;
    border-radius: var(--radius-md);
    overflow: hidden;
    border: 1px solid rgba(255,255,255,0.08);
}

.qr-image img {
    width: 100%;
    height: auto;
    display: block;
}

.qr-tip {
    font-size: 0.85rem;
    color: var(--text-muted);
}

/* ---- Small Button ---- */
.btn-sm {
    padding: 6px 16px;
    font-size: 0.8rem;
}

/* ---- Brand Section ---- */
.brand-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.brand-card {
    background: var(--gradient-card);
    border: 1px solid rgba(255,255,255,0.06);
    border-radius: var(--radius-lg);
    padding: 36px 28px;
    text-align: center;
    transition: var(--transition);
}

.brand-card:hover {
    transform: translateY(-4px);
    border-color: rgba(201,169,110,0.2);
}

.brand-card h3 { font-size: 1.2rem; margin-bottom: 16px; color: var(--gold-light); }

.brand-card p { font-size: 0.9rem; color: var(--text-secondary); line-height: 1.8; }

/* ---- Footer ---- */
.footer {
    background: #060f1c;
    border-top: 1px solid rgba(255,255,255,0.06);
    padding: 60px 0 30px;
    padding-bottom: calc(30px + env(safe-area-inset-bottom));
}

.footer .container {
    display: grid;
    grid-template-columns: 2fr 3fr;
    gap: 48px;
}

.footer-brand h3 { font-size: 1.3rem; margin-bottom: 8px; }

.footer-brand-header {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 12px;
}

.footer-brand-header h3 {
    font-size: 1.3rem;
    margin-bottom: 0;
}

.footer-logo {
    height: 100px;
    width: auto;
    display: block;
}

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

.footer-tagline { color: var(--gold-light) !important; margin-top: 8px; font-style: italic; }

.footer-links {
    display: flex;
    gap: 48px;
    justify-content: flex-end;
}

.footer-col h4 {
    font-size: 0.9rem;
    color: var(--text-primary);
    margin-bottom: 16px;
}

.footer-col a {
    display: block;
    font-size: 0.85rem;
    color: var(--text-muted);
    padding: 4px 0;
    transition: var(--transition);
}

.footer-col a:hover { color: var(--accent-light); }

.footer-bottom {
    grid-column: 1 / -1;
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255,255,255,0.04);
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* ---- Back to Top ---- */
.back-to-top {
    position: fixed;
    bottom: calc(90px + env(safe-area-inset-bottom));
    right: calc(32px + env(safe-area-inset-right));
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--bg-card);
    border: 1px solid rgba(255,255,255,0.1);
    color: var(--text-primary);
    font-size: 1.2rem;
    cursor: pointer;
    z-index: 99;
    opacity: 0;
    transform: translateY(20px);
    transition: var(--transition);
    pointer-events: none;
}

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

.back-to-top:hover {
    background: rgba(108,156,224,0.2);
    border-color: var(--accent);
}

/* ---- Modal ---- */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.6);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: var(--transition);
}

.modal-overlay.active {
    opacity: 1;
    pointer-events: auto;
}

.modal {
    background: var(--bg-secondary);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: var(--radius-xl);
    padding: 40px;
    max-width: 520px;
    width: 90%;
    position: relative;
    box-shadow: 0 20px 60px rgba(0,0,0,0.5);
}

.modal-close {
    position: absolute;
    top: 16px;
    right: 20px;
    background: none;
    border: none;
    font-size: 1.8rem;
    color: var(--text-muted);
    cursor: pointer;
    transition: var(--transition);
}

.modal-close:hover { color: var(--text-primary); }

.modal h2 { font-size: 1.5rem; margin-bottom: 8px; }

.modal > p { color: var(--text-secondary); margin-bottom: 24px; font-size: 0.9rem; }

.form-group {
    margin-bottom: 16px;
}

.form-group label {
    display: block;
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 6px;
}

.form-group select {
    width: 100%;
    padding: 12px 16px;
    border-radius: var(--radius-sm);
    border: 1px solid rgba(255,255,255,0.1);
    background: rgba(255,255,255,0.05);
    color: var(--text-primary);
    font-size: 0.95rem;
    font-family: inherit;
    cursor: pointer;
    transition: var(--transition);
}

.form-group select:focus {
    outline: none;
    border-color: var(--accent);
}

.recommend-form .btn { width: 100%; margin-top: 8px; }

.recommend-result {
    margin-top: 24px;
    padding: 24px;
    background: rgba(108,156,224,0.08);
    border-radius: var(--radius-md);
    border: 1px solid rgba(108,156,224,0.15);
}

.recommend-result h3 { margin-bottom: 16px; }

.result-item {
    padding: 12px 16px;
    background: rgba(255,255,255,0.04);
    border-radius: var(--radius-sm);
    margin-bottom: 8px;
    font-size: 0.95rem;
}

/* ---- Nav User ---- */
.nav-user {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-left: 16px;
}

.nav-user .btn-sm {
    padding: 8px 20px;
    font-size: 0.85rem;
}

.nav-user-info {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.nav-user-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: rgba(108,156,224,0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
}

.nav-user-name {
    color: var(--text-primary);
    font-weight: 600;
    max-width: 100px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.nav-member-only {
    /* shown/hidden by JS */
}

/* ---- Auth Modal ---- */
.auth-modal {
    max-width: 420px;
}

.auth-tabs {
    display: flex;
    gap: 0;
    margin-bottom: 24px;
    border-radius: var(--radius-md);
    overflow: hidden;
    border: 1px solid rgba(255,255,255,0.1);
}

.auth-tab {
    flex: 1;
    padding: 12px;
    border: none;
    background: transparent;
    color: var(--text-secondary);
    font-size: 0.95rem;
    cursor: pointer;
    transition: var(--transition);
    font-family: inherit;
}

.auth-tab.active {
    background: rgba(108,156,224,0.15);
    color: var(--accent-light);
    font-weight: 600;
}

.auth-tab:hover:not(.active) {
    background: rgba(255,255,255,0.04);
}

.auth-form .form-group {
    margin-bottom: 16px;
}

.auth-form .form-group label {
    display: block;
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 6px;
}

.auth-form .form-group input {
    width: 100%;
    padding: 12px 16px;
    border-radius: var(--radius-sm);
    border: 1px solid rgba(255,255,255,0.1);
    background: rgba(255,255,255,0.05);
    color: var(--text-primary);
    font-size: 0.95rem;
    font-family: inherit;
    transition: var(--transition);
}

.auth-form .form-group input:focus {
    outline: none;
    border-color: var(--accent);
    background: rgba(255,255,255,0.08);
}

.form-error {
    font-size: 0.8rem;
    color: #e07070;
    min-height: 20px;
    margin-bottom: 8px;
}

/* ---- Member Section ---- */
.member-section {
    background: var(--bg-secondary);
}

.user-profile-card {
    display: flex;
    align-items: center;
    gap: 24px;
    background: var(--gradient-card);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: var(--radius-lg);
    padding: 32px;
    margin-bottom: 32px;
    flex-wrap: wrap;
}

.profile-avatar {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    background: rgba(108,156,224,0.15);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    flex-shrink: 0;
}

.profile-info {
    flex: 1;
    min-width: 200px;
}

.profile-info h3 {
    font-size: 1.3rem;
    color: var(--text-primary);
    margin-bottom: 6px;
}

.profile-info p {
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.8;
}

.profile-info p span {
    color: var(--accent-light);
    font-weight: 600;
}

/* ---- Sleep Data Panel ---- */
.sleep-data-panel {
    background: var(--gradient-card);
    border: 1px solid rgba(255,255,255,0.06);
    border-radius: var(--radius-lg);
    padding: 32px;
    margin-bottom: 32px;
}

.sleep-data-panel > h3 {
    font-size: 1.2rem;
    margin-bottom: 24px;
    color: var(--text-primary);
}

.data-actions {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 24px;
    flex-wrap: wrap;
}

.data-sync-btn {
    white-space: nowrap;
}

.data-hint {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.sleep-input-form .input-row {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    margin-bottom: 16px;
}

.input-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

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

.input-group input {
    padding: 12px 16px;
    border-radius: var(--radius-sm);
    border: 1px solid rgba(255,255,255,0.1);
    background: rgba(255,255,255,0.05);
    color: var(--text-primary);
    font-size: 0.95rem;
    font-family: inherit;
    transition: var(--transition);
}

.input-group input:focus {
    outline: none;
    border-color: var(--accent);
}

.input-group-full {
    grid-column: 1 / -1;
}

.sleep-input-form .btn-primary {
    width: 100%;
    justify-content: center;
}

/* ---- Report List ---- */
.report-list-section {
    margin-bottom: 32px;
}

.report-list-section > h3 {
    font-size: 1.2rem;
    margin-bottom: 20px;
    color: var(--text-primary);
}

.report-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.no-data {
    text-align: center;
    color: var(--text-muted);
    padding: 40px;
    font-size: 0.9rem;
}

.report-history-card {
    background: var(--gradient-card);
    border: 1px solid rgba(255,255,255,0.06);
    border-radius: var(--radius-md);
    padding: 20px 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    cursor: pointer;
    transition: var(--transition);
    flex-wrap: wrap;
}

.report-history-card:hover {
    border-color: rgba(108,156,224,0.2);
    background: var(--bg-card-hover);
    transform: translateY(-2px);
}

.report-history-card .rhc-date {
    font-size: 0.9rem;
    color: var(--text-primary);
    font-weight: 600;
}

.report-history-card .rhc-score {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--accent-light);
}

.report-history-card .rhc-duration {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.report-history-card .rhc-view {
    font-size: 0.8rem;
    color: var(--accent-light);
}

/* ---- AI Report Gen ---- */
.ai-report-gen {
    margin-bottom: 20px;
}

/* ---- Feature Gate ---- */
.feature-gate {
    position: absolute;
    inset: 0;
    z-index: 10;
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.feature-gate.active {
    pointer-events: auto;
    opacity: 1;
}

.feature-gate-overlay {
    position: absolute;
    inset: 0;
    background: rgba(10, 22, 40, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    display: flex;
    align-items: center;
    justify-content: center;
}

.gate-content {
    text-align: center;
    padding: 40px;
}

.gate-icon {
    font-size: 3rem;
    display: block;
    margin-bottom: 16px;
}

.gate-content h3 {
    font-size: 1.4rem;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.gate-content p {
    font-size: 0.95rem;
    color: var(--text-secondary);
    margin-bottom: 24px;
}

/* ---- Report Modal ---- */
.report-modal {
    max-width: 560px;
}

.report-full {
    margin-top: 16px;
}

.report-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 24px;
    padding-bottom: 16px;
    border-bottom: 1px solid rgba(255,255,255,0.08);
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.report-meta strong {
    color: var(--text-primary);
}

.report-score-big {
    font-size: 1rem;
    color: var(--text-primary);
}

.report-score-big strong {
    font-size: 2rem;
    color: var(--accent-light);
    margin-left: 4px;
}

.report-details {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
    margin: 24px 0;
}

.detail-item {
    background: rgba(255,255,255,0.04);
    border-radius: var(--radius-sm);
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.detail-item span {
    font-size: 0.8rem;
    color: var(--text-muted);
}

.detail-item strong {
    font-size: 1.1rem;
    color: var(--text-primary);
}

.report-actions {
    margin-top: 24px;
    text-align: center;
}

/* ---- Brand Culture (Redesigned) ---- */
.brand-overview {
    background: var(--gradient-card);
    border: 1px solid rgba(255,255,255,0.06);
    border-radius: var(--radius-lg);
    padding: 36px;
    margin-bottom: 40px;
}

.overview-text p {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.9;
    margin-bottom: 12px;
}

.overview-text strong {
    color: var(--accent-light);
}

.overview-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-top: 28px;
    padding-top: 24px;
    border-top: 1px solid rgba(255,255,255,0.06);
}

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

.os-num {
    display: block;
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--gold-light);
    margin-bottom: 4px;
}

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

/* Brand Matrix Table */
.brand-matrix {
    margin-bottom: 40px;
}

.brand-matrix > h3 {
    font-size: 1.3rem;
    color: var(--text-primary);
    text-align: center;
    margin-bottom: 8px;
}

.matrix-desc {
    text-align: center;
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 24px;
}

.matrix-table-wrap {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

.matrix-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
}

.matrix-table th {
    background: rgba(108,156,224,0.12);
    color: var(--accent-light);
    padding: 14px 16px;
    text-align: center;
    font-weight: 600;
    border-bottom: 2px solid rgba(108,156,224,0.2);
}

.matrix-table td {
    padding: 12px 16px;
    text-align: center;
    color: var(--text-secondary);
    border-bottom: 1px solid rgba(255,255,255,0.05);
}

.matrix-table tbody tr:hover td {
    background: rgba(255,255,255,0.03);
}

.matrix-table td:first-child {
    color: var(--text-primary);
    font-weight: 600;
}

/* Brand Pillars */
.brand-pillars {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-bottom: 40px;
}

.pillar-card {
    background: var(--gradient-card);
    border: 1px solid rgba(255,255,255,0.06);
    border-radius: var(--radius-lg);
    padding: 32px 28px;
    transition: var(--transition);
}

.pillar-card:hover {
    transform: translateY(-4px);
    border-color: rgba(201,169,110,0.2);
    box-shadow: var(--shadow-glow);
}

.pillar-icon {
    font-size: 2.5rem;
    margin-bottom: 16px;
    text-align: center;
}

.pillar-card h3 {
    font-size: 1.2rem;
    color: var(--text-primary);
    text-align: center;
    margin-bottom: 12px;
}

.pillar-quote {
    font-size: 0.9rem;
    color: var(--gold-light);
    text-align: center;
    font-style: italic;
    margin-bottom: 16px;
    padding-bottom: 16px;
    border-bottom: 1px solid rgba(255,255,255,0.06);
}

.pillar-card > p {
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 8px;
}

.pillar-card strong {
    color: var(--accent-light);
}

.pillar-tech-list {
    list-style: none;
}

.pillar-tech-list li {
    font-size: 0.82rem;
    color: var(--text-secondary);
    padding: 6px 0;
    border-bottom: 1px solid rgba(255,255,255,0.03);
    line-height: 1.6;
}

.pillar-tech-list li strong {
    color: var(--accent-light);
}

/* Culture Items */
.culture-items {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.culture-item {
    display: flex;
    gap: 12px;
    align-items: flex-start;
}

.culture-badge {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 0.8rem;
    font-weight: 600;
    background: rgba(108,156,224,0.15);
    color: var(--accent-light);
    white-space: nowrap;
    flex-shrink: 0;
}

.culture-item p {
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Brand Timeline */
.brand-timeline {
    margin-bottom: 40px;
}

.brand-timeline > h3 {
    font-size: 1.3rem;
    color: var(--text-primary);
    text-align: center;
    margin-bottom: 32px;
}

.timeline-horizontal {
    display: flex;
    gap: 0;
    position: relative;
    justify-content: space-between;
    overflow-x: auto;
    padding: 20px 0;
}

.timeline-horizontal::before {
    content: '';
    position: absolute;
    top: 56px;
    left: 10%;
    right: 10%;
    height: 2px;
    background: rgba(108,156,224,0.2);
}

.tl-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    min-width: 140px;
    position: relative;
    z-index: 1;
}

.tl-year {
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--accent-light);
    padding: 6px 16px;
    border-radius: 14px;
    background: rgba(108,156,224,0.12);
    margin-bottom: 12px;
    white-space: nowrap;
}

.tl-dot {
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: var(--accent);
    border: 3px solid var(--bg-primary);
    box-shadow: 0 0 12px rgba(108,156,224,0.4);
    margin-bottom: 16px;
    z-index: 2;
}

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

.tl-content h4 {
    font-size: 0.95rem;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.tl-content p {
    font-size: 0.78rem;
    color: var(--text-muted);
    line-height: 1.5;
    max-width: 150px;
}

/* Brand Responsibility */
.brand-responsibility {
    margin-bottom: 20px;
}

.responsibility-card {
    display: flex;
    align-items: flex-start;
    gap: 20px;
    background: linear-gradient(135deg, rgba(201,169,110,0.08) 0%, rgba(108,156,224,0.05) 100%);
    border: 1px solid rgba(201,169,110,0.15);
    border-radius: var(--radius-lg);
    padding: 32px;
}

.responsibility-icon {
    font-size: 2.5rem;
    flex-shrink: 0;
}

.responsibility-content h3 {
    font-size: 1.2rem;
    color: var(--gold-light);
    margin-bottom: 8px;
}

.responsibility-content p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.8;
}

.responsibility-content strong {
    color: var(--accent-light);
}

/* ---- Scene Recommendation ---- */
.scene-recommend {
    margin-bottom: 40px;
}

.scene-desc {
    text-align: center;
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 28px;
}

.scene-upload-area {
    background: var(--gradient-card);
    border: 2px dashed rgba(255,255,255,0.1);
    border-radius: var(--radius-lg);
    padding: 48px;
    text-align: center;
    transition: var(--transition);
    cursor: pointer;
    margin-bottom: 24px;
    position: relative;
}

.scene-upload-area:hover,
.scene-upload-area.drag-over {
    border-color: var(--accent);
    background: rgba(108,156,224,0.06);
}

.upload-placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
}

.upload-icon {
    font-size: 3rem;
    margin-bottom: 4px;
}

.upload-placeholder span:nth-child(2) {
    font-size: 1rem;
    color: var(--text-primary);
}

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

.scene-upload-area img {
    max-width: 100%;
    max-height: 300px;
    border-radius: var(--radius-md);
    margin: 0 auto;
    display: block;
}

/* Scene Result Panel */
.scene-result {
    background: var(--gradient-card);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: var(--radius-lg);
    padding: 32px;
    margin-top: 24px;
    animation: fadeIn 0.4s ease;
}

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

.result-header {
    display: flex;
    align-items: center;
    gap: 24px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.result-style-badge {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    border-radius: 20px;
    background: rgba(108,156,224,0.15);
    border: 1px solid var(--accent);
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--accent-light);
}

.result-colors {
    display: flex;
    gap: 8px;
    align-items: center;
}

.color-swatch {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    border: 2px solid rgba(255,255,255,0.2);
    box-shadow: 0 2px 8px rgba(0,0,0,0.3);
}

.result-summary {
    background: rgba(108,156,224,0.06);
    border-radius: var(--radius-md);
    padding: 20px;
    margin-bottom: 24px;
}

.result-summary h4 {
    font-size: 1rem;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.result-summary p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

.result-products {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
}

.result-product-card {
    background: rgba(255,255,255,0.03);
    border: 1px solid rgba(255,255,255,0.06);
    border-radius: var(--radius-md);
    padding: 20px;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
}

.result-product-card:hover {
    border-color: var(--accent);
    background: rgba(108,156,224,0.08);
    transform: translateY(-2px);
}

.result-product-card .rp-icon {
    font-size: 2.2rem;
    margin-bottom: 10px;
}

.result-product-card h5 {
    font-size: 0.95rem;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.result-product-card .rp-desc {
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.result-product-card .rp-match {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--accent-light);
    background: rgba(108,156,224,0.12);
}

/* ---- Back to Home (Isolation Mode) ---- */
.back-to-home {
    position: fixed;
    bottom: calc(32px + env(safe-area-inset-bottom));
    left: calc(32px + env(safe-area-inset-left));
    padding: 12px 24px;
    border-radius: 24px;
    background: var(--gradient-accent);
    border: none;
    color: #fff;
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    z-index: 99;
    opacity: 0;
    transform: translateY(20px);
    transition: var(--transition);
    pointer-events: none;
    box-shadow: 0 4px 16px rgba(108,156,224,0.3);
    font-family: inherit;
}

.back-to-home.visible {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
}

.back-to-home:hover {
    box-shadow: 0 8px 24px rgba(108,156,224,0.5);
    transform: translateY(-2px);
}

/* ---- Homepage Default: only hero + features visible ---- */
#member-center,
#sleep-aid,
#sleep-monitor,
#care-guide,
#shopping-guide,
#brand {
    display: none;
}

/* ---- Section Isolation ---- */
body.isolated #hero,
body.isolated #features {
    display: none;
}

body.isolated section.isolated-target {
    display: block !important;
}

body.isolated section#hero.isolated-target {
    display: flex !important;
    min-height: 100vh;
    padding-top: 64px;
}

/* ---- Responsive Design ---- */

/* Tablet */
@media (max-width: 1024px) {
    .hero .container {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-visual { height: 250px; }

    .moon-orb { width: 150px; height: 150px; }

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

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

    /* Mobile nav for tablet & below */
    .nav-menu {
        position: fixed;
        top: 64px;
        left: 0;
        right: 0;
        background: rgba(10, 22, 40, 0.97);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
        flex-direction: column;
        padding: 24px;
        border-bottom: 1px solid rgba(255,255,255,0.06);
        transform: translateY(-120%);
        transition: var(--transition);
        opacity: 0;
    }

    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
    }

    .nav-toggle { display: flex; }

    .nav-toggle.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
    .nav-toggle.active span:nth-child(2) { opacity: 0; }
    .nav-toggle.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

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

    .shop-dimensions {
        grid-template-columns: repeat(3, 1fr);
    }

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

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

    .audio-categories { grid-template-columns: 1fr; max-width: 500px; margin: 0 auto 48px; }

    .brand-grid { grid-template-columns: 1fr; max-width: 500px; margin: 0 auto; }

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

    .footer-links { justify-content: flex-start; }

    .monitor-flow { flex-direction: column; align-items: center; }

    .flow-arrow { transform: rotate(90deg); padding-top: 0; }

    .sleep-input-form .input-row {
        grid-template-columns: repeat(2, 1fr);
    }

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

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

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

    .timeline-horizontal {
        flex-wrap: wrap;
        justify-content: center;
        gap: 20px;
    }

    .timeline-horizontal::before {
        display: none;
    }

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

}

/* Mobile */
@media (max-width: 640px) {
    html { font-size: 14px; }

    .hero-title { font-size: 2.2rem; }

    .title-brand { font-size: 1.3rem; }

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

    .section-title { font-size: 1.6rem; }

    .section { padding: 64px 0; }

    .container { padding: 0 16px; }

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

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

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

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

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

    .flow-step { width: 100%; }

    .recommend-box {
        flex-direction: column;
        text-align: center;
    }

    .player-controls { gap: 16px; }

    .ctrl-play { width: 56px; height: 56px; }

    .modal { padding: 24px 20px; }

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

    .compare-table { font-size: 0.75rem; }

    .compare-table th,
    .compare-table td { padding: 8px 10px; }

    .sleep-input-form .input-row {
        grid-template-columns: 1fr;
    }

    .user-profile-card {
        flex-direction: column;
        text-align: center;
    }

    .report-meta {
        flex-direction: column;
        align-items: flex-start;
    }

    .report-details {
        grid-template-columns: 1fr;
    }

    .nav-user {
        margin-left: 0;
    }

    .report-history-card {
        flex-direction: column;
        text-align: center;
    }

    .brand-pillars {
        grid-template-columns: 1fr;
    }

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

    .pillar-card {
        padding: 24px 20px;
    }

    .tl-item {
        min-width: 120px;
    }

    .tl-content p {
        max-width: 120px;
    }

    .responsibility-card {
        flex-direction: column;
        text-align: center;
    }

    .result-products {
        grid-template-columns: 1fr;
    }

    .result-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
    }

    .scene-upload-area {
        padding: 32px 20px;
    }

}

/* Extra small phones */
@media (max-width: 380px) {
    .shop-dimensions {
        grid-template-columns: 1fr;
    }
    .overview-stats {
        grid-template-columns: 1fr;
    }
    .modal { padding: 20px 16px; }
    .nav-user .btn-sm {
        padding: 6px 10px;
        font-size: 0.75rem;
    }
}

/* ---- QR Code ---- */
.fab-qrcode {
    position: fixed;
    bottom: calc(24px + env(safe-area-inset-bottom));
    right: calc(24px + env(safe-area-inset-right));
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: var(--gradient-accent);
    color: white;
    font-size: 1.5rem;
    border: none;
    cursor: pointer;
    z-index: 1500;
    box-shadow: 0 4px 20px rgba(108,156,224,0.4);
    transition: transform 0.3s, box-shadow 0.3s;
    display: flex;
    align-items: center;
    justify-content: center;
}
.fab-qrcode:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 28px rgba(108,156,224,0.6);
}

.qrcode-modal { text-align: center; }
.qrcode-modal h2 { margin-bottom: 4px; }

.qrcode-url {
    color: var(--accent);
    font-size: 0.85rem;
    margin-bottom: 20px;
    word-break: break-all;
    font-family: monospace;
}

.qrcode-img-wrap {
    background: white;
    display: inline-block;
    padding: 16px;
    border-radius: var(--radius-lg);
    margin-bottom: 16px;
}
.qrcode-img-wrap img { display: block; width: 200px; height: 200px; }

.qrcode-tip {
    color: var(--text-muted);
    font-size: 0.8rem;
    margin-bottom: 0;
}

/* Touch device */
@media (hover: none) {
    .feature-card:hover,
    .care-card:hover,
    .brand-card:hover,
    .audio-cat:hover {
        transform: none;
    }

    .feature-card:active {
        border-color: var(--accent);
        box-shadow: 0 4px 20px rgba(108,156,224,0.2);
    }

    .upload-placeholder span:last-child {
        display: none;
    }
}