:root {
    color-scheme: light dark;
    --primary: #21ba9e;
    --on-primary: #ffffff;
    --primary-container: #e5f8f2;
    --on-primary-container: #002117;
    --secondary: #4dc9af;
    --secondary-container: #ccf1e6;
    --tertiary: #6fd4bc;
    --background: #f7fdfb;
    --on-background: #1a1c1e;
    --surface: #ffffff;
    --on-surface: #1a1c1e;
    --surface-variant: #f0f1f2;
    --on-surface-variant: #5c5f62;
    --surface-container-low: #f2fbf8;
    --surface-container: #edf9f5;
    --surface-container-high: #e8f5f1;
    --surface-container-highest: #e2f2ed;
    --outline: #757779;
    --outline-variant: #c5c6c8;
    --shadow-color: color-mix(in srgb, var(--outline) 18%, transparent);
    --shadow-color-strong: color-mix(in srgb, var(--outline) 30%, transparent);
    --glow-primary: color-mix(in srgb, var(--primary) 26%, transparent);
    --glow-secondary: color-mix(in srgb, var(--secondary) 24%, transparent);
    --header-bg: color-mix(in srgb, var(--surface) 84%, transparent);
    --card-bg: color-mix(in srgb, var(--surface) 92%, transparent);
    --card-soft-bg: color-mix(in srgb, var(--surface-container-low) 88%, transparent);
    --hero-panel-bg: linear-gradient(
        145deg,
        color-mix(in srgb, var(--primary-container) 60%, var(--surface) 40%),
        color-mix(in srgb, var(--surface) 88%, transparent)
    );
    --panel-gradient: linear-gradient(
        145deg,
        color-mix(in srgb, var(--primary-container) 62%, transparent),
        color-mix(in srgb, var(--surface) 96%, transparent)
    );
    --page-max-width: 1240px;
    --radius-xs: 18px;
    --radius-sm: 24px;
    --radius-md: 34px;
    --radius-lg: 46px;
    --font-body: "HarmonyOS Sans SC", "MiSans", "PingFang SC", "Microsoft YaHei", sans-serif;
    --font-display: "Source Han Serif SC", "Noto Serif SC", "STSong", serif;
}

[data-theme="dark"] {
    --primary: #6fd4bc;
    --on-primary: #00382a;
    --primary-container: #00503d;
    --on-primary-container: #ccf1e6;
    --secondary: #9fe3d1;
    --secondary-container: #00503d;
    --tertiary: #9fe3d1;
    --background: #1a1c1e;
    --on-background: #e1e2e4;
    --surface: #1a1c1e;
    --on-surface: #e1e2e4;
    --surface-variant: #444749;
    --on-surface-variant: #c5c6c8;
    --surface-container-low: #191d1c;
    --surface-container: #1e2322;
    --surface-container-high: #282e2d;
    --surface-container-highest: #333938;
    --outline: #8f9193;
    --outline-variant: #5c5f62;
    --shadow-color: color-mix(in srgb, #000000 48%, transparent);
    --shadow-color-strong: color-mix(in srgb, #000000 66%, transparent);
    --glow-primary: color-mix(in srgb, var(--primary) 14%, transparent);
    --glow-secondary: color-mix(in srgb, var(--secondary) 12%, transparent);
    --header-bg: color-mix(in srgb, var(--surface-container) 88%, transparent);
    --card-bg: color-mix(in srgb, var(--surface-container-low) 94%, transparent);
    --card-soft-bg: color-mix(in srgb, var(--surface-container) 86%, transparent);
    --hero-panel-bg: linear-gradient(
        145deg,
        color-mix(in srgb, var(--surface-container) 92%, transparent),
        color-mix(in srgb, var(--surface) 94%, transparent)
    );
    --panel-gradient: linear-gradient(
        145deg,
        color-mix(in srgb, var(--surface-container-high) 90%, transparent),
        color-mix(in srgb, var(--surface) 100%, transparent)
    );
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    min-height: 100vh;
    font-family: var(--font-body);
    color: var(--on-background);
    background:
        radial-gradient(circle at top left, var(--glow-primary), transparent 34%),
        radial-gradient(circle at right 12% top 18%, var(--glow-secondary), transparent 26%),
        linear-gradient(180deg, var(--background), var(--surface-container-low));
}

body::before {
    position: fixed;
    inset: 0;
    z-index: -1;
    content: "";
    background-image:
        linear-gradient(
            90deg,
            transparent 0,
            transparent calc(100% - 1px),
            color-mix(in srgb, var(--outline-variant) 28%, transparent) 100%
        ),
        linear-gradient(
            transparent 0,
            transparent calc(100% - 1px),
            color-mix(in srgb, var(--outline-variant) 28%, transparent) 100%
        );
    background-size: 88px 88px;
    mask-image: linear-gradient(180deg, color-mix(in srgb, var(--on-surface) 10%, transparent), transparent 80%);
}

body.lightbox-open {
    overflow: hidden;
}

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

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

button,
a {
    -webkit-tap-highlight-color: transparent;
}

button {
    font: inherit;
}

.page-shell {
    width: min(100% - 1rem, var(--page-max-width));
    margin: 0 auto;
    padding: 1rem 0 2.5rem;
}

.site-header {
    position: sticky;
    top: 1rem;
    z-index: 20;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding: 1rem 1.25rem;
    margin-bottom: 1.5rem;
    background: var(--header-bg);
    border: 1px solid color-mix(in srgb, var(--outline-variant) 48%, transparent);
    border-radius: 999px;
    backdrop-filter: blur(20px);
    box-shadow: 0 22px 52px var(--shadow-color);
}

.brand-block {
    display: flex;
    align-items: center;
    gap: 0.9rem;
}

.brand-mark {
    width: 2.75rem;
    height: 2.75rem;
    border-radius: 1rem;
    background:
        linear-gradient(135deg, var(--primary), var(--tertiary)),
        var(--primary-container);
    box-shadow: inset 0 1px 0 color-mix(in srgb, var(--surface) 44%, transparent);
}

.brand-text {
    display: flex;
    flex-direction: column;
    gap: 0.15rem;
}

.brand-text strong {
    font-size: 1rem;
    letter-spacing: 0.04em;
}

.brand-text small,
.site-nav a,
.hero-description,
.section-heading p,
.story-card p,
.preview-copy p,
.footer-meta {
    color: var(--on-surface-variant);
}

.site-nav {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 1.15rem;
}

.site-nav a {
    transition: color 180ms ease, transform 180ms ease;
}

.site-nav a:hover,
.site-nav a:focus-visible {
    color: var(--primary);
    transform: translateY(-1px);
}

.theme-toggle,
.primary-action,
.secondary-action,
.gallery-card,
.preview-shot,
.lightbox-close {
    transition:
        transform 220ms ease,
        box-shadow 220ms ease,
        background 220ms ease,
        border-color 220ms ease,
        color 220ms ease;
}

.theme-toggle {
    min-height: 48px;
    padding: 0 1rem;
    border: 1px solid color-mix(in srgb, var(--outline) 48%, transparent);
    border-radius: 999px;
    background: var(--card-soft-bg);
    color: var(--on-surface);
    cursor: pointer;
}

.hero-section,
.story-layout,
.about-panel,
.site-footer {
    display: grid;
    gap: 1.5rem;
}

.hero-section {
    padding: 1.25rem 0 4rem;
}

.section-kicker,
.story-label,
.metric-card span,
.gallery-card span,
.hero-floating-card span,
.about-stat span {
    margin: 0;
    font-size: 0.78rem;
    letter-spacing: 0.14em;
    text-transform: uppercase;
}

.section-kicker,
.story-label {
    color: var(--primary);
}

.hero-copy h1,
.section-heading h2,
.story-card h3,
.preview-copy h3,
.about-copy h2 {
    margin: 0;
}

.hero-copy h1 {
    max-width: 11ch;
    font-family: var(--font-display);
    font-size: clamp(3rem, 8vw, 5.9rem);
    line-height: 1.03;
    letter-spacing: -0.04em;
    margin-top: 0.8rem;
}

.hero-description {
    max-width: 58ch;
    margin: 1.5rem 0 0;
    font-size: 1.06rem;
    line-height: 1.85;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-top: 2rem;
}

.primary-action,
.secondary-action {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 52px;
    padding: 0 1.5rem;
    border-radius: 999px;
}

.primary-action {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: var(--on-primary);
    box-shadow: 0 16px 30px color-mix(in srgb, var(--primary) 24%, transparent);
}

.secondary-action {
    background: var(--card-bg);
    border: 1px solid color-mix(in srgb, var(--outline) 42%, transparent);
    color: var(--on-surface);
}

.hero-actions a:hover,
.hero-actions a:focus-visible,
.theme-toggle:hover,
.theme-toggle:focus-visible {
    transform: translateY(-2px);
    box-shadow: 0 18px 34px var(--shadow-color);
}

.hero-metrics {
    display: grid;
    gap: 0.9rem;
    margin-top: 2rem;
}

.metric-card,
.story-card,
.preview-card,
.gallery-card,
.about-panel,
.about-stat,
.site-footer,
.tag-strip {
    border: 1px solid color-mix(in srgb, var(--outline-variant) 52%, transparent);
    background: var(--card-bg);
    box-shadow: 0 20px 48px var(--shadow-color);
}

.metric-card {
    padding: 1rem 1.15rem;
    border-radius: var(--radius-sm);
    background: color-mix(in srgb, var(--surface-container-low) 72%, var(--surface) 28%);
}

.metric-card strong,
.hero-floating-card strong,
.about-stat strong {
    display: block;
    margin-top: 0.45rem;
    font-size: 1rem;
    line-height: 1.6;
}

.hero-visual {
    position: relative;
    min-height: 760px;
    padding: 1.25rem 0.5rem 0;
}

.hero-glow {
    position: absolute;
    border-radius: 50%;
    filter: blur(18px);
    animation: floatGlow 10s ease-in-out infinite;
}

.hero-glow-a {
    top: 10%;
    left: 12%;
    width: 220px;
    height: 220px;
    background: var(--glow-primary);
}

.hero-glow-b {
    right: 8%;
    bottom: 12%;
    width: 180px;
    height: 180px;
    background: var(--glow-secondary);
    animation-delay: -4s;
}

.hero-shot {
    position: absolute;
    overflow: hidden;
    border-radius: 36px;
    border: 1px solid color-mix(in srgb, var(--outline-variant) 54%, transparent);
    background: var(--hero-panel-bg);
    box-shadow: 0 30px 70px var(--shadow-color-strong);
}

.hero-shot img,
.story-visual img,
.preview-shot img,
.gallery-card img {
    width: 100%;
    height: auto;
}

.hero-shot-main {
    inset: 10% 8% auto auto;
    width: min(54vw, 360px);
    transform: rotate(-3deg);
}

.hero-shot-top {
    top: 4%;
    left: 0;
    width: min(32vw, 220px);
    transform: rotate(-8deg);
}

.hero-shot-side {
    right: 0;
    bottom: 4%;
    width: min(34vw, 230px);
    transform: rotate(6deg);
}

.hero-floating-card {
    position: absolute;
    width: min(280px, 72%);
    padding: 1rem 1.05rem;
    border-radius: 26px;
    border: 1px solid color-mix(in srgb, var(--outline-variant) 52%, transparent);
    background: color-mix(in srgb, var(--surface) 78%, transparent);
    backdrop-filter: blur(18px);
    box-shadow: 0 18px 42px var(--shadow-color);
}

.floating-card-left {
    left: 4%;
    bottom: 28%;
}

.floating-card-right {
    right: 6%;
    top: 22%;
}

.tag-strip {
    display: flex;
    flex-wrap: wrap;
    gap: 0.8rem;
    justify-content: center;
    padding: 1rem;
    border-radius: 999px;
    margin-bottom: 4rem;
}

.tag-strip span {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 40px;
    padding: 0 1rem;
    border-radius: 999px;
    background: color-mix(in srgb, var(--primary-container) 88%, transparent);
    color: var(--on-primary-container);
    border: 1px solid color-mix(in srgb, var(--primary) 18%, transparent);
}

.content-section {
    padding: 0 0 4.5rem;
}

.section-heading {
    max-width: 760px;
    margin-bottom: 2rem;
}

.section-heading h2,
.about-copy h2 {
    font-family: var(--font-display);
    font-size: clamp(2.1rem, 4vw, 3.4rem);
    line-height: 1.12;
    margin-top: 0.9rem;
}

.section-heading p,
.about-copy p,
.story-card p,
.preview-copy p {
    line-height: 1.82;
}

.story-layout {
    align-items: center;
}

.story-visual,
.preview-shot {
    overflow: hidden;
    border-radius: var(--radius-md);
    border: 1px solid color-mix(in srgb, var(--outline-variant) 56%, transparent);
    background: var(--panel-gradient);
    box-shadow: 0 28px 60px var(--shadow-color);
}

.story-copy,
.preview-grid,
.about-stats {
    display: grid;
    gap: 1rem;
}

.story-card,
.preview-card,
.about-panel {
    border-radius: var(--radius-md);
}

.story-card {
    padding: 1.4rem 1.5rem;
    background: color-mix(in srgb, var(--surface-container-low) 76%, var(--surface) 24%);
}

.story-card h3,
.preview-copy h3 {
    font-size: 1.4rem;
    line-height: 1.35;
    margin: 0.75rem 0 0.85rem;
}

.preview-band {
    position: relative;
}

.preview-grid {
    grid-template-columns: repeat(1, minmax(0, 1fr));
}

.preview-card {
    padding: 1.2rem;
    background: color-mix(in srgb, var(--surface) 90%, transparent);
}

.preview-copy {
    padding: 0.3rem 0 1rem;
}

.preview-shot {
    width: 100%;
    padding: 0;
    cursor: pointer;
}

.preview-shot:hover,
.preview-shot:focus-visible,
.gallery-card:hover,
.gallery-card:focus-visible {
    transform: translateY(-4px);
    box-shadow: 0 28px 56px var(--shadow-color-strong);
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(1, minmax(0, 1fr));
    gap: 1rem;
}

.gallery-card {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 0.85rem;
    width: 100%;
    padding: 0.9rem;
    border-radius: 28px;
    cursor: pointer;
    text-align: left;
}

.gallery-card span {
    color: var(--on-surface-variant);
    letter-spacing: 0.08em;
    text-transform: none;
    font-size: 0.86rem;
}

.gallery-card img {
    border-radius: 22px;
}

.about-panel {
    padding: 1.5rem;
    background: var(--panel-gradient);
}

.about-stats {
    grid-template-columns: repeat(1, minmax(0, 1fr));
}

.about-stat {
    padding: 1rem 1.1rem;
    border-radius: 24px;
}

.site-footer {
    grid-template-columns: minmax(0, 1fr);
    align-items: center;
    padding: 1.4rem 1.5rem;
    border-radius: var(--radius-lg);
}

.footer-title,
.footer-meta,
.site-footer p {
    margin: 0;
}

.footer-title {
    margin-bottom: 0.5rem;
    font-size: 1.15rem;
    font-weight: 700;
}

.lightbox {
    position: fixed;
    inset: 0;
    z-index: 40;
    display: grid;
    place-items: center;
    padding: 1rem;
    background: color-mix(in srgb, var(--background) 32%, #000000 68%);
    backdrop-filter: blur(18px);
}

.lightbox[hidden] {
    display: none;
}

.lightbox-close {
    position: absolute;
    top: max(1rem, env(safe-area-inset-top));
    right: max(1rem, env(safe-area-inset-right));
    min-height: 48px;
    padding: 0 1rem;
    border: 1px solid color-mix(in srgb, var(--outline) 48%, transparent);
    border-radius: 999px;
    background: var(--card-bg);
    color: var(--on-surface);
    cursor: pointer;
}

.lightbox-figure {
    display: grid;
    gap: 0.9rem;
    width: min(100%, 1160px);
    margin: 0;
}

.lightbox-figure img {
    max-height: min(80vh, 1080px);
    margin: 0 auto;
    border-radius: 28px;
    border: 1px solid color-mix(in srgb, var(--outline-variant) 56%, transparent);
    box-shadow: 0 34px 84px var(--shadow-color-strong);
}

.lightbox-figure figcaption {
    text-align: center;
    color: color-mix(in srgb, var(--surface) 72%, var(--on-surface) 28%);
}

[data-reveal] {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 680ms ease, transform 680ms ease;
}

[data-reveal].is-visible {
    opacity: 1;
    transform: translateY(0);
}

@keyframes floatGlow {
    0%,
    100% {
        transform: translate3d(0, 0, 0) scale(1);
    }

    50% {
        transform: translate3d(0, -18px, 0) scale(1.03);
    }
}

@media (min-width: 768px) {
    .page-shell {
        width: min(100% - 2rem, var(--page-max-width));
        padding-top: 1.4rem;
    }

    .hero-section,
    .story-layout,
    .about-panel,
    .site-footer {
        grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    }

    .hero-metrics,
    .about-stats {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }

    .preview-grid {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }

    .gallery-grid {
        grid-template-columns: repeat(6, minmax(0, 1fr));
        align-items: start;
    }

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

    .gallery-card.is-wide {
        grid-column: span 4;
    }

    .gallery-card.is-tall {
        grid-row: span 2;
    }
}

@media (min-width: 1100px) {
    .hero-section {
        grid-template-columns: minmax(0, 0.88fr) minmax(480px, 1.12fr);
        align-items: center;
    }

    .story-layout {
        grid-template-columns: minmax(420px, 1.08fr) minmax(0, 0.92fr);
    }
}

@media (max-width: 900px) {
    .site-header {
        border-radius: 32px;
    }

    .site-nav {
        width: 100%;
        justify-content: space-between;
    }

    .hero-visual {
        min-height: 620px;
    }

    .floating-card-left {
        bottom: 18%;
    }
}

@media (max-width: 767px) {
    .site-header {
        padding: 1rem;
    }

    .theme-toggle,
    .primary-action,
    .secondary-action {
        width: 100%;
    }

    .hero-copy h1 {
        max-width: 100%;
    }

    .hero-shot-main {
        width: min(62vw, 330px);
    }

    .hero-shot-top,
    .hero-shot-side {
        width: min(38vw, 220px);
    }

    .hero-floating-card {
        width: min(240px, 68%);
    }

    .tag-strip {
        border-radius: 28px;
    }
}

@media (max-width: 580px) {
    .page-shell {
        width: min(100% - 0.75rem, var(--page-max-width));
    }

    .site-nav {
        gap: 0.7rem 1rem;
        justify-content: flex-start;
    }

    .hero-section {
        padding-top: 0.5rem;
    }

    .hero-visual {
        min-height: 540px;
    }

    .hero-shot-main {
        right: 1%;
        width: min(64vw, 290px);
    }

    .hero-shot-top {
        left: 1%;
        width: min(42vw, 180px);
    }

    .hero-shot-side {
        right: 0;
        width: min(40vw, 170px);
    }

    .floating-card-left,
    .floating-card-right {
        width: min(52vw, 220px);
    }

    .floating-card-left {
        left: 2%;
        bottom: 10%;
    }

    .floating-card-right {
        right: 2%;
        top: 18%;
    }
}

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }

    *,
    *::before,
    *::after {
        animation: none !important;
        transition-duration: 0ms !important;
    }

    [data-reveal] {
        opacity: 1;
        transform: none;
    }
}