/* =====================================================
   优漾瑜伽官网 · macOS 毛玻璃风格
   ===================================================== */

/* ---------- CSS Variables ---------- */
:root {
    --color-bg: #0d0d1a;
    --color-surface: rgba(255, 255, 255, 0.06);
    --color-surface-hover: rgba(255, 255, 255, 0.12);
    --color-border: rgba(255, 255, 255, 0.12);
    --color-border-light: rgba(255, 255, 255, 0.06);
    --color-text: rgba(255, 255, 255, 0.92);
    --color-text-secondary: rgba(255, 255, 255, 0.55);
    --color-text-muted: rgba(255, 255, 255, 0.35);
    --color-accent: #c9a96e;
    --color-accent-soft: rgba(201, 169, 110, 0.25);
    --color-accent-glow: rgba(201, 169, 110, 0.15);
    --color-purple: rgba(139, 92, 246, 0.6);
    --color-blush: rgba(244, 163, 193, 0.5);
    --color-teal: rgba(45, 212, 191, 0.4);
    --blur-sm: blur(8px);
    --blur-md: blur(20px);
    --blur-lg: blur(40px);
    --radius-sm: 12px;
    --radius-md: 20px;
    --radius-lg: 32px;
    --radius-xl: 48px;
    --shadow-glass: 0 8px 32px rgba(0, 0, 0, 0.35), inset 0 1px 0 rgba(255, 255, 255, 0.1);
    --shadow-glow: 0 0 60px rgba(201, 169, 110, 0.12);
    --font-serif: 'Noto Serif SC', 'Songti SC', serif;
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    background: var(--color-bg);
    color: var(--color-text);
    min-height: 100vh;
    overflow-x: hidden;
    line-height: 1.6;
}

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

ul {
    list-style: none;
}

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

/* ---------- Background ---------- */
.bg-wrap {
    position: fixed;
    inset: 0;
    z-index: 0;
    pointer-events: none;
    overflow: hidden;
}

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

.orb-1 {
    width: 700px;
    height: 700px;
    background: radial-gradient(circle, rgba(139, 92, 246, 0.4) 0%, transparent 70%);
    top: -200px;
    left: -200px;
    animation-delay: 0s;
}

.orb-2 {
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(244, 163, 193, 0.35) 0%, transparent 70%);
    top: 30%;
    right: -150px;
    animation-delay: -7s;
}

.orb-3 {
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(45, 212, 191, 0.3) 0%, transparent 70%);
    bottom: -100px;
    left: 30%;
    animation-delay: -14s;
}

.bg-noise {
    position: absolute;
    inset: 0;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.035'/%3E%3C/svg%3E");
    background-size: 200px;
    opacity: 0.4;
}

@keyframes drift {

    0%,
    100% {
        transform: translate(0, 0) scale(1);
    }

    33% {
        transform: translate(30px, -40px) scale(1.05);
    }

    66% {
        transform: translate(-20px, 30px) scale(0.95);
    }
}

/* ---------- Glass Mixins ---------- */
.glass-card {
    background: var(--color-surface);
    backdrop-filter: var(--blur-md);
    -webkit-backdrop-filter: var(--blur-md);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-glass);
    transition: var(--transition);
}

.glass-card:hover {
    background: var(--color-surface-hover);
    border-color: rgba(255, 255, 255, 0.2);
    transform: translateY(-4px);
    box-shadow: 0 16px 48px rgba(0, 0, 0, 0.4), inset 0 1px 0 rgba(255, 255, 255, 0.15);
}

.glass-card-mini {
    background: rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: var(--radius-sm);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
}

/* ---------- Buttons ---------- */
.glass-btn {
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-radius: 100px;
    padding: 12px 28px;
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    display: inline-block;
    transition: var(--transition);
    border: 1px solid transparent;
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-accent), #b8893e);
    color: #1a1005;
    border-color: rgba(201, 169, 110, 0.6);
    box-shadow: 0 4px 20px rgba(201, 169, 110, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(201, 169, 110, 0.5);
}

.btn-ghost {
    background: rgba(255, 255, 255, 0.08);
    color: var(--color-text);
    border-color: var(--color-border);
}

.btn-ghost:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateY(-2px);
}

.btn-book {
    background: linear-gradient(135deg, rgba(201, 169, 110, 0.25), rgba(201, 169, 110, 0.1));
    color: var(--color-accent);
    border: 1px solid rgba(201, 169, 110, 0.35);
    padding: 10px 22px;
    font-size: 0.85rem;
}

.btn-book:hover {
    background: rgba(201, 169, 110, 0.3);
}

/* ---------- Navbar ---------- */
.navbar {
    position: fixed;
    top: 16px;
    left: 50%;
    transform: translateX(-50%);
    width: calc(100% - 48px);
    max-width: 1200px;
    z-index: 1000;
    border-radius: var(--radius-lg);
    transition: var(--transition);
}

.glass-nav {
    background: rgba(13, 13, 26, 0.55);
    backdrop-filter: saturate(180%) blur(24px);
    -webkit-backdrop-filter: saturate(180%) blur(24px);
    border: 1px solid var(--color-border);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4), inset 0 1px 0 rgba(255, 255, 255, 0.08);
}

.glass-nav.scrolled {
    background: rgba(13, 13, 26, 0.8);
    box-shadow: 0 16px 48px rgba(0, 0, 0, 0.5);
}

.nav-inner {
    display: flex;
    align-items: center;
    padding: 16px 28px;
    gap: 32px;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-family: var(--font-serif);
    font-size: 1.1rem;
    font-weight: 600;
    white-space: nowrap;
}

.logo-icon {
    font-size: 1.3rem;
}

.nav-links {
    display: flex;
    gap: 28px;
    flex: 1;
    justify-content: center;
}

.nav-links a {
    font-size: 0.88rem;
    color: var(--color-text-secondary);
    transition: color var(--transition);
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    right: 0;
    height: 1px;
    background: var(--color-accent);
    transform: scaleX(0);
    transition: transform var(--transition);
}

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

.nav-links a:hover::after {
    transform: scaleX(1);
}

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

.hamburger span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--color-text-secondary);
    border-radius: 2px;
    transition: var(--transition);
}

/* ---------- Hero ---------- */
.hero {
    position: relative;
    z-index: 1;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 120px 48px 80px;
    max-width: 1400px;
    margin: 0 auto;
    gap: 80px;
}

.hero-content {
    flex: 1;
    max-width: 580px;
}

.hero-eyebrow {
    font-size: 0.8rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--color-accent);
    margin-bottom: 20px;
}

.hero-title {
    font-family: var(--font-serif);
    font-size: clamp(2.8rem, 5vw, 4.5rem);
    font-weight: 300;
    line-height: 1.15;
    margin-bottom: 24px;
    letter-spacing: -0.01em;
}

.hero-title em {
    font-style: normal;
    background: linear-gradient(135deg, var(--color-accent), #f0c88a, var(--color-blush));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-sub {
    color: var(--color-text-secondary);
    font-size: 1.05rem;
    line-height: 1.7;
    margin-bottom: 40px;
}

.hero-btns {
    display: flex;
    gap: 14px;
    flex-wrap: wrap;
    margin-bottom: 48px;
}

.hero-stats {
    display: flex;
    gap: 14px;
    flex-wrap: wrap;
}

.stat {
    padding: 16px 20px;
    text-align: center;
}

.stat-num {
    display: block;
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--color-accent);
}

.stat-label {
    font-size: 0.75rem;
    color: var(--color-text-secondary);
}

/* Hero Visual */
.hero-visual {
    position: relative;
    flex: 1;
    max-width: 480px;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 480px;
}

.glass-circle {
    width: 360px;
    height: 360px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: radial-gradient(ellipse at 30% 30%, rgba(201, 169, 110, 0.15), rgba(139, 92, 246, 0.1), rgba(13, 13, 26, 0.2));
    border: 1px solid rgba(255, 255, 255, 0.12);
    box-shadow: 0 0 100px rgba(201, 169, 110, 0.1), inset 0 0 60px rgba(255, 255, 255, 0.03);
}

.lotus {
    font-size: 8rem;
    animation: float 6s ease-in-out infinite;
}

@keyframes float {

    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-16px);
    }
}

.floating-tag {
    position: absolute;
    padding: 10px 18px;
    font-size: 0.82rem;
    font-weight: 500;
    color: var(--color-text-secondary);
    animation: float 6s ease-in-out infinite;
}

.tag-1 {
    top: 20px;
    right: 20px;
    animation-delay: -1s;
}

.tag-2 {
    bottom: 60px;
    right: 0;
    animation-delay: -3s;
}

.tag-3 {
    bottom: 20px;
    left: 20px;
    animation-delay: -5s;
}

/* ---------- Sections ---------- */
.section {
    position: relative;
    z-index: 1;
    padding: 100px 48px;
}

.section-dark {
    background: rgba(0, 0, 0, 0.2);
}

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

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

.section-eyebrow {
    font-size: 0.75rem;
    letter-spacing: 0.25em;
    text-transform: uppercase;
    color: var(--color-accent);
    margin-bottom: 12px;
}

.section-title {
    font-family: var(--font-serif);
    font-size: clamp(1.8rem, 3vw, 2.8rem);
    font-weight: 300;
    margin-bottom: 20px;
}

.section-desc {
    color: var(--color-text-secondary);
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.8;
}

/* ---------- About Grid ---------- */
.about-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 20px;
}

.about-card {
    padding: 36px 28px;
    text-align: center;
}

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

.about-card h3 {
    font-size: 1.1rem;
    margin-bottom: 10px;
    font-family: var(--font-serif);
}

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

/* ---------- Classes ---------- */
.glass-tabs {
    display: flex;
    gap: 8px;
    padding: 6px;
    border-radius: 100px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--color-border);
    backdrop-filter: blur(12px);
    width: fit-content;
    margin: 0 auto 40px;
}

.tab {
    padding: 10px 24px;
    border-radius: 100px;
    border: none;
    background: transparent;
    color: var(--color-text-secondary);
    font-size: 0.88rem;
    cursor: pointer;
    transition: var(--transition);
}

.tab.active {
    background: rgba(201, 169, 110, 0.2);
    color: var(--color-accent);
    border: 1px solid rgba(201, 169, 110, 0.35);
}

.tab:hover:not(.active) {
    background: rgba(255, 255, 255, 0.08);
    color: var(--color-text);
}

.classes-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 20px;
}

.class-card {
    padding: 28px;
    cursor: pointer;
}

.class-card .type-badge {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 100px;
    font-size: 0.72rem;
    font-weight: 500;
    background: var(--color-accent-soft);
    color: var(--color-accent);
    border: 1px solid rgba(201, 169, 110, 0.25);
    margin-bottom: 14px;
}

.class-card h3 {
    font-family: var(--font-serif);
    font-size: 1.15rem;
    margin-bottom: 8px;
}

.class-card .class-meta {
    color: var(--color-text-secondary);
    font-size: 0.82rem;
    display: flex;
    flex-direction: column;
    gap: 4px;
    margin-bottom: 14px;
}

.class-card .class-meta span {
    display: flex;
    align-items: center;
    gap: 6px;
}

.class-card .class-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 16px;
    padding-top: 16px;
    border-top: 1px solid var(--color-border-light);
}

.class-card .price {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--color-accent);
}

.class-card .spots {
    font-size: 0.78rem;
    color: var(--color-text-muted);
}

.btn-sm {
    padding: 8px 18px;
    font-size: 0.8rem;
    background: rgba(201, 169, 110, 0.15);
    border: 1px solid rgba(201, 169, 110, 0.3);
    color: var(--color-accent);
    border-radius: 100px;
    cursor: pointer;
    transition: var(--transition);
}

.btn-sm:hover {
    background: rgba(201, 169, 110, 0.3);
}

/* Skeleton */
.skeleton {
    min-height: 220px;
    background: linear-gradient(90deg, rgba(255, 255, 255, 0.03) 25%, rgba(255, 255, 255, 0.07) 50%, rgba(255, 255, 255, 0.03) 75%);
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
}

@keyframes shimmer {
    0% {
        background-position: 200% 0;
    }

    100% {
        background-position: -200% 0;
    }
}

/* ---------- Teachers ---------- */
.teachers-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: 24px;
}

.teacher-card {
    padding: 32px;
    display: flex;
    gap: 24px;
    align-items: flex-start;
}

.teacher-avatar-wrap {
    flex-shrink: 0;
    width: 80px;
    height: 80px;
    border-radius: 50%;
    overflow: hidden;
    background: linear-gradient(135deg, rgba(201, 169, 110, 0.2), rgba(139, 92, 246, 0.2));
    border: 2px solid rgba(255, 255, 255, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
}

.teacher-avatar-placeholder {
    font-size: 2.5rem;
}

.teacher-info h3 {
    font-family: var(--font-serif);
    font-size: 1.1rem;
    margin-bottom: 4px;
}

.teacher-specialty {
    color: var(--color-accent);
    font-size: 0.82rem;
    margin-bottom: 10px;
}

.teacher-bio {
    color: var(--color-text-secondary);
    font-size: 0.85rem;
    line-height: 1.6;
    margin-bottom: 12px;
}

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

.tag {
    padding: 4px 10px;
    border-radius: 100px;
    font-size: 0.72rem;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid var(--color-border);
    color: var(--color-text-secondary);
}

/* ---------- Schedule ---------- */
.schedule-wrap {
    padding: 32px;
    overflow-x: auto;
}

.schedule-table {
    width: 100%;
    border-collapse: collapse;
}

.schedule-table th {
    text-align: left;
    padding: 12px 16px;
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--color-text-secondary);
    letter-spacing: 0.05em;
    border-bottom: 1px solid var(--color-border-light);
}

.schedule-table td {
    padding: 14px 16px;
    font-size: 0.88rem;
    border-bottom: 1px solid var(--color-border-light);
    vertical-align: middle;
}

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

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

.badge-group {
    color: #7dd3fc;
}

.badge-private {
    color: #c4b5fd;
}

.badge-workshop {
    color: #86efac;
}

.schedule-loading {
    text-align: center;
    color: var(--color-text-muted);
    padding: 40px 0;
}

/* ---------- Contact ---------- */
.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
    margin-bottom: 40px;
}

.contact-card {
    padding: 28px 20px;
    text-align: center;
}

.contact-icon {
    font-size: 2rem;
    margin-bottom: 12px;
}

.contact-card h4 {
    margin-bottom: 6px;
    font-size: 0.9rem;
}

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

.cta-wrap {
    padding: 48px;
    text-align: center;
}

.cta-wrap h3 {
    font-family: var(--font-serif);
    font-size: 1.8rem;
    margin-bottom: 12px;
}

.cta-wrap>p {
    color: var(--color-text-secondary);
    margin-bottom: 32px;
}

.qr-placeholder {
    display: flex;
    justify-content: center;
    margin-bottom: 32px;
}

.qr-box {
    width: 120px;
    height: 120px;
    border: 2px dashed var(--color-border);
    border-radius: var(--radius-sm);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 8px;
    color: var(--color-text-muted);
    font-size: 0.75rem;
}

.qr-box span {
    font-size: 2.5rem;
}

/* ---------- Footer ---------- */
.footer {
    position: relative;
    z-index: 1;
}

.glass-footer {
    background: rgba(0, 0, 0, 0.3);
    backdrop-filter: var(--blur-md);
    -webkit-backdrop-filter: var(--blur-md);
    border-top: 1px solid var(--color-border-light);
    border-radius: 0;
}

.footer-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 32px 48px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 16px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 8px;
    font-family: var(--font-serif);
    font-size: 1rem;
}

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

.footer-links {
    display: flex;
    gap: 20px;
}

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

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

/* ---------- Scroll Reveal ---------- */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}

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

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
    .hero {
        flex-direction: column;
        padding: 120px 24px 60px;
        gap: 40px;
        text-align: center;
    }

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

    .hero-visual {
        min-height: 300px;
    }

    .glass-circle {
        width: 260px;
        height: 260px;
    }

    .lotus {
        font-size: 5rem;
    }

    .floating-tag {
        display: none;
    }

    .section {
        padding: 70px 24px;
    }

    .navbar {
        top: 0;
        left: 0;
        transform: none;
        width: 100%;
        border-radius: 0;
        top: 0;
    }

    .nav-links {
        display: none;
    }

    .btn-book {
        display: none;
    }

    .hamburger {
        display: flex;
        margin-left: auto;
    }

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

@media (max-width: 600px) {
    .about-grid {
        grid-template-columns: 1fr 1fr;
    }

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

/* ---------- Scrollbar ---------- */
::-webkit-scrollbar {
    width: 6px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.2);
}