:root {
    --bg-page: #f8f6f2;
    --bg-deep: #0d1b2a;
    --bg-card: rgba(255, 255, 255, 0.92);
    --bg-card-deep: rgba(13, 27, 42, 0.85);
    --text-main: #4a4a5a;
    --text-soft: #6b6b7a;
    --text-light: rgba(255, 255, 255, 0.88);
    --title: #1b2238;
    --gold: #d4af37;
    --gold-deep: #b58e1e;
    --gold-soft: #f3e4a8;
    --sky: #73b9e6;
    --border: rgba(0, 0, 0, 0.06);
    --shadow-card: 0 18px 50px rgba(15, 29, 48, 0.1);
    --shadow-soft: 0 14px 36px rgba(18, 35, 58, 0.08);
    --radius-lg: 28px;
    --radius-md: 20px;
    --radius-sm: 14px;
    --nav-height: 86px;
    --container: min(1180px, calc(100% - 48px));
    --transition: 220ms ease;
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    min-width: 320px;
    background:
        radial-gradient(circle at top, rgba(212, 175, 55, 0.12), transparent 28%),
        linear-gradient(180deg, #fbfaf7 0%, var(--bg-page) 100%);
    color: var(--text-main);
    font-family: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
    line-height: 1.7;
}

body.is-menu-open {
    overflow: hidden;
}

img,
svg {
    display: block;
}

.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

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

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

button {
    font: inherit;
}

.container {
    width: var(--container);
    margin: 0 auto;
}

.site-loader {
    position: fixed;
    inset: 0;
    z-index: 120;
    display: grid;
    place-items: center;
    gap: 16px;
    background: linear-gradient(180deg, #f9f6ef 0%, #ece6d6 100%);
    transition: opacity 400ms ease, visibility 400ms ease;
}

.site-loader.is-hidden {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}

.site-loader__ring {
    width: 88px;
    height: 88px;
    border: 3px solid rgba(212, 175, 55, 0.16);
    border-top-color: var(--gold);
    border-radius: 50%;
    animation: loader-spin 1s linear infinite;
    box-shadow: 0 0 0 12px rgba(212, 175, 55, 0.05);
}

.site-loader__label {
    font-family: "Noto Serif SC", "Songti SC", "STSong", serif;
    font-size: 1rem;
    letter-spacing: 0.34em;
    color: var(--gold-deep);
    text-transform: uppercase;
}

.site-nav {
    position: fixed;
    inset: 0 0 auto;
    z-index: 60;
    padding: 20px 0;
    transition:
        background-color var(--transition),
        box-shadow var(--transition),
        backdrop-filter var(--transition),
        padding var(--transition);
}

.site-nav.is-scrolled {
    padding: 12px 0;
    background: rgba(255, 255, 255, 0.94);
    box-shadow: 0 12px 32px rgba(16, 31, 50, 0.08);
    backdrop-filter: blur(14px);
}

.site-nav__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 14px;
    color: #fff;
    transition: color var(--transition);
}

.site-nav.is-scrolled .brand {
    color: var(--title);
}

.brand__mark {
    width: 46px;
    height: 46px;
    display: grid;
    place-items: center;
    border-radius: 50%;
    border: 1px solid rgba(255, 255, 255, 0.28);
    background: rgba(255, 255, 255, 0.08);
    color: var(--gold-soft);
}

.site-nav.is-scrolled .brand__mark {
    border-color: rgba(212, 175, 55, 0.22);
    background: rgba(212, 175, 55, 0.08);
    color: var(--gold);
}

.brand__mark svg {
    width: 24px;
    height: 24px;
}

.brand__text {
    display: flex;
    flex-direction: column;
    line-height: 1.1;
}

.brand__text strong {
    font-family: "Noto Serif SC", "Songti SC", "STSong", serif;
    font-size: 1.18rem;
    letter-spacing: 0.08em;
}

.brand__text span:last-child {
    margin-top: 4px;
    font-size: 0.75rem;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    opacity: 0.82;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 8px;
}

.nav-menu a {
    position: relative;
    padding: 10px 16px;
    border-radius: 999px;
    color: rgba(255, 255, 255, 0.94);
    font-size: 0.95rem;
    transition:
        color var(--transition),
        background-color var(--transition),
        transform var(--transition);
}

.site-nav.is-scrolled .nav-menu a {
    color: var(--text-main);
}

.nav-menu a::after {
    content: "";
    position: absolute;
    left: 18px;
    right: 18px;
    bottom: 6px;
    height: 1px;
    transform: scaleX(0);
    transform-origin: center;
    background: linear-gradient(90deg, transparent, var(--gold), transparent);
    transition: transform var(--transition);
}

.nav-menu a:hover,
.nav-menu a:focus-visible {
    background: rgba(255, 255, 255, 0.12);
    transform: translateY(-1px);
}

.site-nav.is-scrolled .nav-menu a:hover,
.site-nav.is-scrolled .nav-menu a:focus-visible {
    background: rgba(212, 175, 55, 0.1);
}

.nav-menu a:hover::after,
.nav-menu a:focus-visible::after {
    transform: scaleX(1);
}

.nav-toggle {
    display: none;
    width: 48px;
    height: 48px;
    border: 0;
    border-radius: 14px;
    background: rgba(255, 255, 255, 0.14);
    padding: 0;
    color: #fff;
}

.site-nav.is-scrolled .nav-toggle {
    background: rgba(212, 175, 55, 0.12);
    color: var(--title);
}

.nav-toggle span {
    display: block;
    width: 20px;
    height: 2px;
    margin: 5px auto;
    background: currentColor;
    border-radius: 999px;
    transition: transform var(--transition), opacity var(--transition);
}

.nav-toggle[aria-expanded="true"] span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] span:nth-child(2) {
    opacity: 0;
}

.nav-toggle[aria-expanded="true"] span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: calc(var(--nav-height) + 48px) 0 80px;
    background:
        #112033 url("../images/bg/bg.jpg") center/cover no-repeat;
    overflow: hidden;
}

.hero__overlay {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(
            ellipse at 50% 42%,
            rgba(255, 255, 255, 0.03) 0%,
            rgba(255, 255, 255, 0) 34%,
            rgba(8, 12, 20, 0.12) 74%,
            rgba(6, 10, 18, 0.24) 100%
        ),
        linear-gradient(
            180deg,
            rgba(255, 255, 255, 0.04) 0%,
            rgba(255, 255, 255, 0) 36%,
            rgba(7, 10, 16, 0.14) 100%
        );
    pointer-events: none;
}

.hero__fireflies {
    position: absolute;
    inset: 0;
    z-index: 1;
    pointer-events: none;
    overflow: hidden;
}

.hero__fireflies span {
    position: absolute;
    left: var(--fly-x);
    top: var(--fly-y);
    width: var(--fly-size, 7px);
    height: var(--fly-size, 7px);
    border-radius: 50%;
    background:
        radial-gradient(circle, rgba(255, 255, 226, 1) 0 18%, rgba(255, 231, 128, 0.92) 28%, rgba(246, 191, 65, 0.42) 52%, rgba(246, 191, 65, 0) 76%),
        radial-gradient(circle, rgba(174, 255, 143, 0.38), rgba(174, 255, 143, 0) 70%);
    box-shadow:
        0 0 calc(var(--fly-size, 7px) * 2.2) rgba(255, 239, 148, 0.95),
        0 0 calc(var(--fly-size, 7px) * 5.2) rgba(255, 202, 72, 0.62),
        0 0 calc(var(--fly-size, 7px) * 8.6) rgba(134, 239, 172, 0.34);
    opacity: var(--fly-opacity, 0.82);
    transform: translate3d(0, 0, 0) scale(1);
    animation:
        firefly-drift var(--fly-speed, 12s) ease-in-out infinite,
        firefly-blink var(--fly-blink, 3.8s) ease-in-out infinite;
    animation-delay: var(--fly-delay, 0s), var(--fly-blink-delay, 0s);
}

.hero__fireflies span::before {
    content: "";
    position: absolute;
    inset: -280%;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(255, 232, 128, 0.28), rgba(255, 226, 118, 0.12) 38%, rgba(255, 226, 118, 0) 72%);
    filter: blur(7px);
    pointer-events: none;
}

.hero__fireflies span:nth-child(1) {
    --fly-x: 12%;
    --fly-y: 32%;
    --fly-size: 8px;
    --fly-opacity: 0.74;
    --fly-speed: 13s;
    --fly-blink: 3.2s;
    --fly-delay: -1.2s;
    --fly-blink-delay: -0.6s;
}

.hero__fireflies span:nth-child(2) {
    --fly-x: 82%;
    --fly-y: 30%;
    --fly-size: 7px;
    --fly-opacity: 0.68;
    --fly-speed: 14.6s;
    --fly-blink: 4.4s;
    --fly-delay: -4.4s;
    --fly-blink-delay: -2.1s;
}

.hero__fireflies span:nth-child(3) {
    --fly-x: 18%;
    --fly-y: 66%;
    --fly-size: 9px;
    --fly-opacity: 0.84;
    --fly-speed: 11.8s;
    --fly-blink: 3.6s;
    --fly-delay: -2.8s;
    --fly-blink-delay: -1.4s;
}

.hero__fireflies span:nth-child(4) {
    --fly-x: 72%;
    --fly-y: 72%;
    --fly-size: 9px;
    --fly-opacity: 0.82;
    --fly-speed: 12.4s;
    --fly-blink: 3.1s;
    --fly-delay: -5.6s;
    --fly-blink-delay: -0.9s;
}

.hero__fireflies span:nth-child(5) {
    --fly-x: 58%;
    --fly-y: 78%;
    --fly-size: 7px;
    --fly-opacity: 0.72;
    --fly-speed: 10.8s;
    --fly-blink: 2.8s;
    --fly-delay: -1.8s;
    --fly-blink-delay: -1.8s;
}

.hero__fireflies span:nth-child(6) {
    --fly-x: 8%;
    --fly-y: 52%;
    --fly-size: 6px;
    --fly-opacity: 0.62;
    --fly-speed: 16.2s;
    --fly-blink: 4.8s;
    --fly-delay: -7.2s;
    --fly-blink-delay: -3.4s;
}

.hero__fireflies span:nth-child(7) {
    --fly-x: 90%;
    --fly-y: 58%;
    --fly-size: 6px;
    --fly-opacity: 0.64;
    --fly-speed: 15.4s;
    --fly-blink: 4.2s;
    --fly-delay: -3.6s;
    --fly-blink-delay: -1.2s;
}

.hero__fireflies span:nth-child(8) {
    --fly-x: 29%;
    --fly-y: 76%;
    --fly-size: 7px;
    --fly-opacity: 0.7;
    --fly-speed: 11.2s;
    --fly-blink: 3.4s;
    --fly-delay: -4.8s;
    --fly-blink-delay: -2.2s;
}

.hero__fireflies span:nth-child(9) {
    --fly-x: 43%;
    --fly-y: 84%;
    --fly-size: 5px;
    --fly-opacity: 0.54;
    --fly-speed: 13.6s;
    --fly-blink: 5s;
    --fly-delay: -6.2s;
    --fly-blink-delay: -3.8s;
}

.hero__fireflies span:nth-child(10) {
    --fly-x: 66%;
    --fly-y: 84%;
    --fly-size: 7px;
    --fly-opacity: 0.68;
    --fly-speed: 12.8s;
    --fly-blink: 3.8s;
    --fly-delay: -2.4s;
    --fly-blink-delay: -1.6s;
}

.hero__fireflies span:nth-child(11) {
    --fly-x: 4%;
    --fly-y: 78%;
    --fly-size: 5px;
    --fly-opacity: 0.48;
    --fly-speed: 17.8s;
    --fly-blink: 5.2s;
    --fly-delay: -8.4s;
    --fly-blink-delay: -2.8s;
}

.hero__fireflies span:nth-child(12) {
    --fly-x: 96%;
    --fly-y: 76%;
    --fly-size: 5px;
    --fly-opacity: 0.5;
    --fly-speed: 18.6s;
    --fly-blink: 4.9s;
    --fly-delay: -5.2s;
    --fly-blink-delay: -4s;
}

.hero__fireflies span:nth-child(13) {
    --fly-x: 24%;
    --fly-y: 22%;
    --fly-size: 5px;
    --fly-opacity: 0.46;
    --fly-speed: 18.4s;
    --fly-blink: 5.6s;
    --fly-delay: -9.4s;
    --fly-blink-delay: -4.6s;
}

.hero__fireflies span:nth-child(14) {
    --fly-x: 76%;
    --fly-y: 18%;
    --fly-size: 5px;
    --fly-opacity: 0.44;
    --fly-speed: 19.8s;
    --fly-blink: 5.8s;
    --fly-delay: -7.8s;
    --fly-blink-delay: -3.2s;
}

.hero__fireflies span:nth-child(15) {
    --fly-x: 16%;
    --fly-y: 44%;
    --fly-size: 6px;
    --fly-opacity: 0.7;
    --fly-speed: 14.8s;
    --fly-blink: 3.5s;
    --fly-delay: -8.8s;
    --fly-blink-delay: -1.1s;
}

.hero__fireflies span:nth-child(16) {
    --fly-x: 35%;
    --fly-y: 58%;
    --fly-size: 8px;
    --fly-opacity: 0.86;
    --fly-speed: 12.2s;
    --fly-blink: 2.9s;
    --fly-delay: -5.4s;
    --fly-blink-delay: -2.2s;
}

.hero__fireflies span:nth-child(17) {
    --fly-x: 50%;
    --fly-y: 70%;
    --fly-size: 6px;
    --fly-opacity: 0.74;
    --fly-speed: 11.6s;
    --fly-blink: 3.6s;
    --fly-delay: -3.1s;
    --fly-blink-delay: -0.8s;
}

.hero__fireflies span:nth-child(18) {
    --fly-x: 86%;
    --fly-y: 42%;
    --fly-size: 7px;
    --fly-opacity: 0.78;
    --fly-speed: 15.6s;
    --fly-blink: 3.3s;
    --fly-delay: -9.2s;
    --fly-blink-delay: -2.6s;
}

.hero__fireflies span:nth-child(19) {
    --fly-x: 63%;
    --fly-y: 50%;
    --fly-size: 5px;
    --fly-opacity: 0.62;
    --fly-speed: 16.8s;
    --fly-blink: 5.4s;
    --fly-delay: -10.2s;
    --fly-blink-delay: -4.1s;
}

.hero__fireflies span:nth-child(20) {
    --fly-x: 38%;
    --fly-y: 28%;
    --fly-size: 5px;
    --fly-opacity: 0.56;
    --fly-speed: 18.2s;
    --fly-blink: 4.7s;
    --fly-delay: -6.6s;
    --fly-blink-delay: -3.6s;
}

.hero__fireflies span:nth-child(21) {
    --fly-x: 7%;
    --fly-y: 68%;
    --fly-size: 8px;
    --fly-opacity: 0.82;
    --fly-speed: 13.4s;
    --fly-blink: 3.1s;
    --fly-delay: -2.7s;
    --fly-blink-delay: -1.9s;
}

.hero__fireflies span:nth-child(22) {
    --fly-x: 93%;
    --fly-y: 68%;
    --fly-size: 8px;
    --fly-opacity: 0.8;
    --fly-speed: 13.9s;
    --fly-blink: 3.2s;
    --fly-delay: -4.9s;
    --fly-blink-delay: -2.4s;
}

.hero__fireflies span:nth-child(23) {
    --fly-x: 25%;
    --fly-y: 88%;
    --fly-size: 6px;
    --fly-opacity: 0.66;
    --fly-speed: 12.6s;
    --fly-blink: 4.2s;
    --fly-delay: -7.5s;
    --fly-blink-delay: -2.9s;
}

.hero__fireflies span:nth-child(24) {
    --fly-x: 78%;
    --fly-y: 88%;
    --fly-size: 6px;
    --fly-opacity: 0.68;
    --fly-speed: 12.9s;
    --fly-blink: 4s;
    --fly-delay: -1.5s;
    --fly-blink-delay: -0.5s;
}

.hero__fireflies span:nth-child(25) {
    --fly-x: 46%;
    --fly-y: 92%;
    --fly-size: 5px;
    --fly-opacity: 0.54;
    --fly-speed: 14.4s;
    --fly-blink: 5.6s;
    --fly-delay: -11.5s;
    --fly-blink-delay: -3.5s;
}

.hero__fireflies span:nth-child(26) {
    --fly-x: 54%;
    --fly-y: 36%;
    --fly-size: 5px;
    --fly-opacity: 0.58;
    --fly-speed: 17.2s;
    --fly-blink: 5.1s;
    --fly-delay: -12.1s;
    --fly-blink-delay: -4.8s;
}

.hero__fireflies span:nth-child(27) {
    --fly-x: 31%;
    --fly-y: 46%;
    --fly-size: 6px;
    --fly-opacity: 0.7;
    --fly-speed: 15.2s;
    --fly-blink: 3.7s;
    --fly-delay: -6.1s;
    --fly-blink-delay: -1.7s;
}

.hero__fireflies span:nth-child(28) {
    --fly-x: 69%;
    --fly-y: 40%;
    --fly-size: 6px;
    --fly-opacity: 0.72;
    --fly-speed: 15.8s;
    --fly-blink: 3.9s;
    --fly-delay: -8.2s;
    --fly-blink-delay: -2.7s;
}

.hero__ornament {
    position: absolute;
    top: 20%;
    width: 340px;
    height: 340px;
    border: 1px solid rgba(255, 255, 255, 0.14);
    border-radius: 50%;
    opacity: 0.5;
}

.hero__ornament::before,
.hero__ornament::after {
    content: "";
    position: absolute;
    inset: 18px;
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 50%;
}

.hero__ornament--left {
    left: -130px;
}

.hero__ornament--right {
    right: -130px;
}

.hero__content {
    position: relative;
    z-index: 2;
    isolation: isolate;
    max-width: 900px;
    text-align: center;
    color: #fff;
}

.hero__content::after {
    content: "";
    position: absolute;
    left: 50%;
    bottom: -36px;
    z-index: -1;
    width: min(760px, 92vw);
    height: 220px;
    transform: translateX(-50%);
    background: radial-gradient(
        ellipse at center,
        rgba(8, 12, 20, 0.2) 0%,
        rgba(8, 12, 20, 0.11) 44%,
        rgba(8, 12, 20, 0) 74%
    );
    pointer-events: none;
}

.hero__eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    margin: 0;
    padding: 11px 18px;
    border: 1px solid rgba(212, 175, 55, 0.55);
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.08);
    box-shadow: 0 10px 24px rgba(0, 0, 0, 0.12);
    color: var(--gold-soft);
    font-size: 0.92rem;
    letter-spacing: 0.08em;
}

.hero__eyebrow-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--gold);
    box-shadow: 0 0 16px rgba(212, 175, 55, 0.8);
}

.hero__title {
    margin: 28px 0 18px;
    font-family: "Noto Serif SC", "Songti SC", "STSong", serif;
    font-size: clamp(4rem, 10vw, 7.3rem);
    line-height: 0.96;
    letter-spacing: 0.18em;
    text-indent: 0.18em;
    background: linear-gradient(180deg, #fff9dc 0%, #efd88c 32%, #d4af37 72%, #b58e1e 100%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    text-shadow: 0 10px 30px rgba(0, 0, 0, 0.28);
}

.hero__subtitle {
    max-width: 760px;
    margin: clamp(300px, 58vh, 506px) auto 0;
    color: var(--text-light);
    font-size: clamp(1.05rem, 2vw, 1.26rem);
    text-shadow: 0 5px 20px rgba(0, 0, 0, 0.3);
}

.hero__actions {
    display: flex;
    justify-content: center;
    gap: 18px;
    margin-top: 34px;
}

.btn {
    position: relative;
    isolation: isolate;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 180px;
    min-height: 56px;
    padding: 15px 32px;
    border: 1px solid transparent;
    border-radius: 12px;
    overflow: hidden;
    font-size: 0.98rem;
    font-weight: 700;
    letter-spacing: 0.03em;
    line-height: 1;
    transition:
        transform var(--transition),
        box-shadow var(--transition),
        border-color var(--transition),
        background-color var(--transition),
        color var(--transition);
}

.btn::before {
    content: "";
    position: absolute;
    inset: 1px;
    border-radius: inherit;
    opacity: 0;
    transition: opacity var(--transition);
    pointer-events: none;
}

.btn::after {
    content: "";
    position: absolute;
    top: 0;
    left: -140%;
    width: 36%;
    height: 100%;
    background: linear-gradient(120deg, transparent, rgba(255, 255, 255, 0.26), transparent);
    transform: skewX(-24deg);
    transition: left 420ms ease;
    pointer-events: none;
}

.btn:hover,
.btn:focus-visible {
    transform: translateY(-2px);
}

.btn:hover::before,
.btn:focus-visible::before {
    opacity: 1;
}

.btn:hover::after,
.btn:focus-visible::after {
    left: 132%;
}

.btn--primary {
    background: linear-gradient(180deg, #243b5b 0%, #1b2f4b 100%);
    color: #f8fbff;
    box-shadow: 0 10px 24px rgba(27, 47, 75, 0.2);
}

.btn--primary::before {
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.12), rgba(255, 255, 255, 0));
}

.btn--primary:hover,
.btn--primary:focus-visible {
    background: linear-gradient(180deg, #1f3553 0%, #16283f 100%);
    box-shadow: 0 14px 28px rgba(22, 40, 63, 0.24);
}

.btn--secondary {
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(255, 255, 255, 0.3);
    color: #fff;
    box-shadow: 0 8px 20px rgba(10, 18, 31, 0.08);
    backdrop-filter: blur(10px);
}

.btn--secondary::before {
    background: rgba(255, 255, 255, 0.12);
}

.btn--secondary:hover,
.btn--secondary:focus-visible {
    background: rgba(255, 255, 255, 0.18);
    border-color: rgba(255, 255, 255, 0.44);
}

.section--light .btn--secondary,
.section--community .btn--secondary {
    background: rgba(27, 47, 75, 0.03);
    border-color: rgba(27, 47, 75, 0.18);
    color: var(--title);
    box-shadow: none;
}

.section--light .btn--secondary::before,
.section--community .btn--secondary::before {
    background: rgba(27, 47, 75, 0.06);
}

.section--light .btn--secondary:hover,
.section--light .btn--secondary:focus-visible,
.section--community .btn--secondary:hover,
.section--community .btn--secondary:focus-visible {
    background: rgba(27, 47, 75, 0.08);
    border-color: rgba(27, 47, 75, 0.26);
}

.scroll-cue {
    position: absolute;
    left: 50%;
    bottom: 28px;
    z-index: 1;
    transform: translateX(-50%);
    display: inline-flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    color: rgba(255, 255, 255, 0.78);
    font-size: 0.74rem;
    letter-spacing: 0.18em;
    text-transform: uppercase;
}

.scroll-cue__arrow {
    width: 24px;
    height: 42px;
    border: 1px solid rgba(255, 255, 255, 0.38);
    border-radius: 999px;
    position: relative;
}

.scroll-cue__arrow::before {
    content: "";
    position: absolute;
    left: 50%;
    top: 8px;
    width: 5px;
    height: 11px;
    border-radius: 999px;
    background: #fff;
    transform: translateX(-50%);
    animation: cue-drop 1.8s ease-in-out infinite;
}

.section {
    position: relative;
    padding: 110px 0;
}

.section--light {
    background: transparent;
}

.section--contrast {
    background:
        radial-gradient(circle at top, rgba(115, 185, 230, 0.12), transparent 22%),
        linear-gradient(180deg, #152638 0%, #0d1b2a 100%);
    color: #fff;
}

.section--community {
    background:
        linear-gradient(180deg, rgba(255, 255, 255, 0.88), rgba(255, 255, 255, 0.92)),
        linear-gradient(130deg, rgba(115, 185, 230, 0.12), transparent 42%);
}

.section--compact {
    padding-top: 88px;
    padding-bottom: 88px;
}

.section-heading {
    max-width: 760px;
    margin: 0 auto 48px;
    text-align: center;
}

.section-heading--light {
    color: #fff;
}

.eyebrow {
    margin: 0 0 16px;
    color: var(--gold);
    font-size: 0.84rem;
    font-weight: 700;
    letter-spacing: 0.24em;
    text-transform: uppercase;
}

.section-heading h2 {
    margin: 0;
    color: var(--title);
    font-family: "Noto Serif SC", "Songti SC", "STSong", serif;
    font-size: clamp(2.2rem, 4vw, 3.3rem);
    line-height: 1.15;
}

.section-heading--light h2 {
    color: #fff;
}

.section-heading__text {
    margin: 18px auto 0;
    color: var(--text-soft);
    font-size: 1rem;
}

.section-heading--light .section-heading__text {
    color: rgba(255, 255, 255, 0.78);
}

.feature-grid,
.guide-grid {
    display: grid;
    gap: 24px;
}

.feature-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
}

.feature-card,
.download-card,
.steps-card,
.info-card,
.status-card,
.notice-card,
.guide-card,
.community-main {
    background: var(--bg-card);
    border: 1px solid rgba(255, 255, 255, 0.78);
    box-shadow: var(--shadow-card);
}

.feature-card,
.guide-card {
    position: relative;
    padding: 30px 26px;
    border-radius: var(--radius-md);
    overflow: hidden;
    transition: transform var(--transition), box-shadow var(--transition);
}

.feature-card::before,
.guide-card::before,
.download-card::before,
.steps-card::before,
.status-card::before,
.notice-card::before,
.community-main::before {
    content: "";
    position: absolute;
    inset: 0;
    border-radius: inherit;
    padding: 1px;
    background: linear-gradient(145deg, rgba(212, 175, 55, 0.32), rgba(115, 185, 230, 0.12), transparent 45%);
    -webkit-mask:
        linear-gradient(#fff 0 0) content-box,
        linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    pointer-events: none;
}

.feature-card:hover,
.guide-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 22px 48px rgba(16, 31, 50, 0.14);
}

.feature-card__icon {
    width: 60px;
    height: 60px;
    display: grid;
    place-items: center;
    border-radius: 18px;
    background: linear-gradient(180deg, rgba(212, 175, 55, 0.14), rgba(212, 175, 55, 0.04));
    color: var(--gold);
}

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

.feature-card h3,
.download-card h3,
.steps-card h3,
.guide-card h3,
.community-main h3,
.status-card h2,
.notice-card h2 {
    margin: 20px 0 10px;
    color: var(--title);
    font-family: "Noto Serif SC", "Songti SC", "STSong", serif;
}

.feature-card p,
.download-card p,
.steps-card li,
.guide-card p,
.community-main p,
.notice-list a,
.status-card p {
    margin: 0;
    color: var(--text-soft);
}

.feature-card__tag {
    display: inline-flex;
    margin-top: 22px;
    padding: 8px 12px;
    border-radius: 999px;
    background: rgba(212, 175, 55, 0.12);
    color: var(--gold-deep);
    font-size: 0.83rem;
    font-weight: 700;
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 24px;
}

.gallery-card {
    min-height: 260px;
    padding: 28px;
    border: 1px solid rgba(255, 255, 255, 0.14);
    border-radius: var(--radius-lg);
    background:
        linear-gradient(180deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.03)),
        linear-gradient(135deg, rgba(115, 185, 230, 0.14), transparent 58%);
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    box-shadow: var(--shadow-soft);
}

.gallery-card span {
    color: var(--gold-soft);
    font-size: 0.82rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
}

.gallery-card p {
    margin: 12px 0 0;
    color: rgba(255, 255, 255, 0.78);
    font-size: 1.04rem;
}

.download-layout,
.community-layout,
.status-layout {
    display: grid;
    gap: 24px;
}

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

.download-card,
.steps-card,
.status-card,
.notice-card,
.community-main {
    position: relative;
    border-radius: var(--radius-lg);
    padding: 34px;
    overflow: hidden;
}

.steps-card {
    margin-top: 48px;
}

.download-card {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 28px;
}

.download-card__eyebrow {
    color: var(--gold);
    font-size: 0.84rem;
    font-weight: 700;
    letter-spacing: 0.18em;
    text-transform: uppercase;
}

.download-side {
    display: grid;
    gap: 18px;
}

.info-card {
    border-radius: var(--radius-md);
    padding: 24px 22px;
}

.info-card p,
.status-metrics p {
    font-size: 0.88rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.info-card strong,
.status-metrics strong {
    display: block;
    margin-top: 8px;
    color: var(--title);
    font-family: "Noto Serif SC", "Songti SC", "STSong", serif;
    font-size: 1.42rem;
}

.steps-list {
    margin: 18px 0 0;
    padding: 0;
    list-style: none;
    counter-reset: step;
    display: grid;
    gap: 16px;
}

.steps-list li {
    position: relative;
    min-height: 48px;
    padding-left: 70px;
}

.steps-list li::before {
    counter-increment: step;
    content: counter(step);
    position: absolute;
    left: 0;
    top: 2px;
    width: 48px;
    height: 48px;
    display: grid;
    place-items: center;
    border-radius: 50%;
    background: linear-gradient(135deg, rgba(212, 175, 55, 0.16), rgba(212, 175, 55, 0.04));
    color: var(--gold-deep);
    font-family: "Noto Serif SC", "Songti SC", "STSong", serif;
    font-size: 1.3rem;
    font-weight: 700;
}

.community-layout {
    grid-template-columns: minmax(0, 1fr);
    align-items: start;
    gap: 0;
}

.community-main {
    min-height: 360px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 48px;
    width: 100%;
    padding: 44px 48px;
    border: 1px solid rgba(255, 255, 255, 0.8);
    background:
        radial-gradient(circle at top left, rgba(212, 175, 55, 0.16), transparent 26%),
        radial-gradient(circle at bottom right, rgba(115, 185, 230, 0.12), transparent 32%),
        linear-gradient(145deg, rgba(255, 255, 255, 0.98), rgba(247, 243, 234, 0.92));
    box-shadow:
        0 22px 56px rgba(15, 29, 48, 0.12),
        inset 0 1px 0 rgba(255, 255, 255, 0.7);
}

.community-main::before {
    background: linear-gradient(135deg, rgba(212, 175, 55, 0.46), rgba(255, 255, 255, 0.12), rgba(115, 185, 230, 0.18));
}

.community-main::after {
    content: "";
    position: absolute;
    inset: 18px;
    border-radius: calc(var(--radius-lg) - 8px);
    border: 1px solid rgba(212, 175, 55, 0.18);
    pointer-events: none;
}

.community-main .btn {
    min-width: 196px;
}

.community-main .btn--primary {
    box-shadow: 0 12px 26px rgba(27, 47, 75, 0.18);
}

.community-main .btn--primary:hover,
.community-main .btn--primary:focus-visible {
    box-shadow: 0 16px 30px rgba(22, 40, 63, 0.22);
}

.qr-card__text {
    flex: 1 1 auto;
    max-width: 560px;
    position: relative;
    z-index: 1;
}

.community-main__eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 16px;
    color: var(--gold-deep);
    font-size: 0.82rem;
    font-weight: 700;
    letter-spacing: 0.22em;
    text-transform: uppercase;
}

.community-main__eyebrow::before {
    content: "";
    width: 36px;
    height: 1px;
    background: linear-gradient(90deg, rgba(212, 175, 55, 0.18), rgba(212, 175, 55, 0.9));
}

.qr-card__text h3 {
    margin-top: 0;
    margin-bottom: 16px;
    font-size: clamp(1.9rem, 3vw, 2.45rem);
    line-height: 1.12;
}

.qr-card__text p {
    max-width: 34em;
    font-size: 1.02rem;
}

.qr-card__text .btn {
    margin-top: 30px;
}

.qr-placeholder {
    position: relative;
    flex: 0 0 276px;
    width: 276px;
    aspect-ratio: 1;
    padding: 22px;
    border-radius: 34px;
    background:
        linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(246, 241, 231, 0.96)),
        radial-gradient(circle at top, rgba(212, 175, 55, 0.12), transparent 52%);
    border: 1px solid rgba(212, 175, 55, 0.22);
    box-shadow:
        0 18px 42px rgba(18, 35, 58, 0.14),
        inset 0 0 0 1px rgba(255, 255, 255, 0.7);
}

.qr-placeholder::before {
    inset: 14px;
    border-radius: 26px;
    background:
        linear-gradient(rgba(17, 26, 43, 0.08) 1px, transparent 1px),
        linear-gradient(90deg, rgba(17, 26, 43, 0.08) 1px, transparent 1px);
    background-size: 18px 18px;
    opacity: 0.45;
}

.qr-placeholder::after {
    inset: 0;
    z-index: 2;
    border-radius: inherit;
    background: none;
    box-shadow:
        inset 0 0 0 1px rgba(212, 175, 55, 0.14),
        0 0 38px rgba(212, 175, 55, 0.08);
    pointer-events: none;
}

.qr-placeholder::after,
.qr-placeholder__inner::before,
.qr-placeholder__inner::after {
    content: "";
    position: absolute;
}

.qr-placeholder__image {
    position: relative;
    z-index: 1;
    display: block;
    width: 100%;
    height: 100%;
    border-radius: 24px;
    object-fit: cover;
    box-shadow: inset 0 0 0 1px rgba(17, 26, 43, 0.06);
}

.qr-placeholder__inner {
    position: relative;
    display: block;
    width: 100%;
    height: 100%;
    border-radius: 24px;
    background:
        linear-gradient(180deg, rgba(255, 255, 255, 0.92), rgba(255, 255, 255, 0.82)),
        linear-gradient(135deg, rgba(212, 175, 55, 0.04), transparent 58%);
    box-shadow: inset 0 0 0 1px rgba(17, 26, 43, 0.06);
    overflow: hidden;
}

.qr-placeholder__inner::before {
    inset: 18px;
    background:
        linear-gradient(90deg, #111a2b 10%, transparent 10% 18%, #111a2b 18% 28%, transparent 28% 40%, #111a2b 40% 50%, transparent 50% 62%, #111a2b 62% 72%, transparent 72% 82%, #111a2b 82% 90%, transparent 90%),
        linear-gradient(#111a2b 10%, transparent 10% 18%, #111a2b 18% 28%, transparent 28% 40%, #111a2b 40% 50%, transparent 50% 62%, #111a2b 62% 72%, transparent 72% 82%, #111a2b 82% 90%, transparent 90%);
    opacity: 0.12;
}

.qr-placeholder__inner::after {
    left: 30px;
    top: 30px;
    width: 46px;
    height: 46px;
    background: #fff;
    box-shadow:
        0 0 0 11px #111a2b,
        126px 0 0 0 #111a2b,
        126px 0 0 11px #111a2b,
        0 126px 0 0 #111a2b,
        0 126px 0 11px #111a2b;
}

.guide-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.status-layout {
    grid-template-columns: minmax(320px, 0.9fr) minmax(0, 1.1fr);
    align-items: start;
}

.status-card__row,
.status-metrics {
    display: flex;
    align-items: center;
    gap: 16px;
}

.status-card__row {
    margin-top: 22px;
    flex-wrap: wrap;
}

.status-pill,
.status-badge {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    min-height: 42px;
    padding: 0 16px;
    border-radius: 999px;
    font-weight: 700;
}

.status-pill {
    background: rgba(34, 197, 94, 0.12);
    color: #0f8a45;
}

.status-pill__dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: currentColor;
    box-shadow: 0 0 12px currentColor;
}

.status-badge {
    background: rgba(115, 185, 230, 0.12);
    color: #2f6d99;
}

.status-metrics {
    justify-content: space-between;
    margin-top: 28px;
    padding-top: 28px;
    border-top: 1px solid var(--border);
}

.counter {
    font-size: clamp(2.2rem, 4vw, 3.4rem) !important;
}

.notice-list {
    margin: 24px 0 0;
    padding: 0;
    list-style: none;
}

.notice-list li {
    display: grid;
    grid-template-columns: 70px minmax(0, 1fr) auto;
    gap: 16px;
    align-items: center;
    padding: 18px 0;
    border-top: 1px solid var(--border);
}

.notice-list li:first-child {
    border-top: 0;
    padding-top: 0;
}

.notice-list span {
    color: var(--gold-deep);
    font-weight: 700;
}

.notice-list em {
    min-width: 54px;
    padding: 7px 10px;
    border-radius: 999px;
    background: rgba(212, 175, 55, 0.12);
    color: var(--gold-deep);
    font-size: 0.78rem;
    font-style: normal;
    text-align: center;
}

.guide-card {
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(255, 255, 255, 0.14);
    box-shadow: none;
}

.guide-card h3,
.guide-card p {
    color: #fff;
}

.guide-card p {
    color: rgba(255, 255, 255, 0.76);
}

.site-footer {
    background: #09131f;
    color: rgba(255, 255, 255, 0.7);
    border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.site-footer__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    min-height: 96px;
}

.site-footer p {
    margin: 0;
}

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

.friend-links a {
    color: rgba(255, 255, 255, 0.82);
}

.back-to-top {
    position: fixed;
    right: 24px;
    bottom: 24px;
    z-index: 50;
    width: 56px;
    height: 56px;
    border: 0;
    border-radius: 50%;
    background: linear-gradient(135deg, #f5df8c, #d4af37);
    color: #231807;
    font-weight: 800;
    box-shadow: 0 18px 32px rgba(184, 139, 27, 0.24);
    opacity: 0;
    visibility: hidden;
    transform: translateY(12px);
    transition: opacity var(--transition), visibility var(--transition), transform var(--transition);
}

.back-to-top.is-visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.reveal {
    opacity: 0;
    transform: translateY(42px);
    transition:
        opacity 720ms ease,
        transform 720ms ease;
}

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

.hero-animate {
    opacity: 0;
    transform: translateY(24px);
    animation: hero-fade 800ms ease forwards;
}

.hero-animate--1 {
    animation-delay: 180ms;
}

.hero-animate--2 {
    animation-delay: 300ms;
}

.hero-animate--3 {
    animation-delay: 440ms;
}

.hero-animate--4 {
    animation-delay: 580ms;
}

@keyframes loader-spin {
    to {
        transform: rotate(360deg);
    }
}

@keyframes cue-drop {
    0%,
    100% {
        transform: translate(-50%, 0);
        opacity: 0.45;
    }

    50% {
        transform: translate(-50%, 13px);
        opacity: 1;
    }
}

@keyframes hero-fade {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes firefly-drift {
    0%,
    100% {
        transform: translate3d(0, 0, 0) scale(0.95);
    }

    28% {
        transform: translate3d(34px, -22px, 0) scale(1.08);
    }

    58% {
        transform: translate3d(-18px, -38px, 0) scale(0.9);
    }

    78% {
        transform: translate3d(22px, -58px, 0) scale(1.02);
    }
}

@keyframes firefly-blink {
    0%,
    18%,
    100% {
        opacity: calc(var(--fly-opacity, 0.72) * 0.5);
    }

    8%,
    46% {
        opacity: var(--fly-opacity, 0.72);
    }

    52%,
    76% {
        opacity: calc(var(--fly-opacity, 0.72) * 0.32);
    }

    82% {
        opacity: calc(var(--fly-opacity, 0.72) * 0.86);
    }
}

@media (max-width: 1180px) {
    .feature-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .download-layout,
    .community-layout,
    .status-layout {
        grid-template-columns: 1fr;
    }

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

@media (max-width: 1024px) {
    :root {
        --container: min(100% - 36px, 1000px);
    }

    .section {
        padding: 92px 0;
    }

    .gallery-grid,
    .guide-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .qr-placeholder {
        width: 260px;
        flex-basis: 260px;
    }
}

@media (max-width: 767px) {
    :root {
        --container: calc(100% - 28px);
        --nav-height: 76px;
    }

    .site-nav {
        padding: 14px 0;
    }

    .nav-toggle {
        display: block;
    }

    .nav-menu {
        position: absolute;
        top: calc(100% + 10px);
        left: 14px;
        right: 14px;
        display: grid;
        gap: 6px;
        padding: 12px;
        border-radius: 22px;
        background: rgba(255, 255, 255, 0.96);
        box-shadow: 0 24px 42px rgba(12, 25, 43, 0.16);
        transform-origin: top;
        transform: scaleY(0.92);
        opacity: 0;
        visibility: hidden;
        transition:
            opacity var(--transition),
            transform var(--transition),
            visibility var(--transition);
    }

    .nav-menu.is-open {
        opacity: 1;
        visibility: visible;
        transform: scaleY(1);
    }

    .nav-menu a,
    .site-nav.is-scrolled .nav-menu a {
        color: var(--text-main);
        background: rgba(248, 246, 242, 0.92);
    }

    .brand__text span:last-child {
        display: none;
    }

    .hero {
        min-height: 92vh;
        padding-top: calc(var(--nav-height) + 36px);
    }

    .hero__subtitle {
        margin-top: clamp(260px, 44vh, 360px);
    }

    .hero__title {
        font-size: clamp(3rem, 16vw, 4.6rem);
        letter-spacing: 0.12em;
        text-indent: 0.12em;
    }

    .hero__actions {
        flex-direction: column;
        gap: 14px;
    }

    .btn {
        width: 100%;
    }

    .feature-grid,
    .gallery-grid,
    .download-side,
    .guide-grid {
        grid-template-columns: 1fr;
    }

    .download-card {
        align-items: flex-start;
        flex-direction: column;
    }

    .community-main {
        flex-direction: column;
        align-items: flex-start;
        gap: 32px;
        padding: 28px 22px;
    }

    .qr-placeholder {
        width: min(260px, 100%);
        flex-basis: auto;
    }

    .notice-list li {
        grid-template-columns: 1fr;
        gap: 10px;
    }

    .status-metrics,
    .site-footer__inner {
        flex-direction: column;
        align-items: flex-start;
    }

    .site-footer__inner {
        padding: 22px 0;
    }

    .back-to-top {
        right: 16px;
        bottom: 16px;
        width: 52px;
        height: 52px;
    }
}

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

    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }

    .reveal,
    .hero-animate {
        opacity: 1 !important;
        transform: none !important;
    }
}