/* VIP 紫晶俱乐部 · authored site stylesheet */
:root {
    --bg: #100919;
    --accent: #c58ad6;
    --ink: #fff7ff;
    --panel: #2b1736;
    --line: color-mix(in srgb, var(--ink) 20%, transparent);
    --radius: 0px;
    --content-width: 1260px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 16px/1.75 -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif; }
a { color: inherit; text-decoration: none; }
a:hover, a:focus-visible { color: var(--accent); text-decoration: underline; text-underline-offset: 5px; }
img { display: block; width: 100%; height: auto; max-height: 620px; object-fit: cover; aspect-ratio: 4 / 3; border-radius: var(--radius); }
figure, p, blockquote { margin: 0; }
figcaption { margin-top: 10px; font-size: .875rem; opacity: .72; }
h2, h3 { line-height: 1.25; overflow-wrap: anywhere; }
h2 { margin: 0 0 20px; font-size: clamp(1.8rem, 4vw, 4rem); letter-spacing: -.035em; }
h3 { margin: 0 0 12px; font-size: 1.2rem; }
ul, ol { padding-left: 1.35rem; }
button { font: inherit; color: inherit; }
.site-header, main, .site-footer { width: min(100%, var(--content-width)); margin-inline: auto; }
.site-header { position: relative; z-index: 20; display: flex; align-items: center; justify-content: space-between; gap: 24px; padding: 18px 28px; border-bottom: 1px solid var(--line); }
.site-header nav { display: flex; align-items: center; gap: 18px; flex-wrap: wrap; }
.site-header nav a { font-size: .92rem; }
.brand { font-size: 1.5rem; font-weight: 900; letter-spacing: -.08em; }
.current { color: var(--accent); border-bottom: 2px solid currentColor; }
.menu-toggle { display: none; border: 1px solid var(--line); background: var(--panel); padding: 8px 12px; border-radius: var(--radius); }
.menu-toggle i { margin-right: 8px; }
.score-strip { display: flex; gap: 16px; font-size: .76rem; color: var(--accent); }
.nav-row, .arena-nav, .floating-brand, .terminal-mark { display: flex; align-items: center; gap: 20px; }
.header-variant-2 { flex-direction: row-reverse; }
.header-variant-5 { align-items: flex-start; }
.header-variant-5 nav { max-width: 720px; justify-content: flex-end; }
main { overflow: clip; }
.page-opening { padding: clamp(42px, 7vw, 100px) 28px; }
.page-opening > div, .page-opening > article, .page-opening > section { min-height: 560px; }
.page-opening article, .page-opening section, .page-opening header { align-self: center; }
.page-opening .visual { min-height: 340px; }
.eyebrow { margin-bottom: 14px; color: var(--accent); font-size: .8rem; font-weight: 800; letter-spacing: .16em; text-transform: uppercase; }
.opening-copy { max-width: 660px; margin-bottom: 25px; font-size: 1.08rem; }
.actions { display: flex; gap: 12px; flex-wrap: wrap; margin: 25px 0; }
.primary-action, .secondary-action { display: inline-block; padding: 11px 18px; border: 1px solid var(--accent); border-radius: var(--radius); }
.primary-action { background: var(--accent); color: var(--bg); font-weight: 800; }
.hero-tags { display: flex; gap: 9px; flex-wrap: wrap; }
.hero-tags span { padding: 6px 10px; background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); font-size: .85rem; }
.amethyst-opening { display: grid; grid-template-columns: 1.15fr .85fr; gap: clamp(24px, 5vw, 72px); align-items: center; box-shadow: 0 0 60px color-mix(in srgb, var(--accent) 22%, transparent); }
.amethyst-opening > aside, .amethyst-opening > nav, .amethyst-opening > dl { padding: 20px; background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); }
.amethyst-opening, .gallery-opening { grid-template-columns: .7fr 1.25fr .7fr; }
.network-opening, .immersive-opening, .portal-opening { grid-template-columns: 1fr 1fr; }
.nodes, .board-lines { display: grid; gap: 10px; padding: 18px; color: var(--accent); }
.content-block { padding: clamp(52px, 8vw, 110px) 28px; border-top: 1px solid var(--line); }
.content-block:nth-of-type(even) { background: color-mix(in srgb, var(--panel) 75%, transparent); }
.content-block > article, .content-block > section, .content-block > div { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: clamp(22px, 4vw, 54px); align-items: center; }
.content-block .split, .content-block .cards { display: grid; grid-template-columns: 1.15fr .85fr; gap: 22px; }
.content-block aside, .content-block blockquote, .content-block dl, .content-block ol { padding: 24px; background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); }
.content-block p { margin-bottom: 14px; }
.news-desk { padding: 70px 28px; border-top: 1px solid var(--line); }
.news-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 18px; }
.news-grid article { padding: 18px; background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); }
.news-grid img { margin-top: 16px; aspect-ratio: 1 / 1; }
.news-kicker { color: var(--accent); font-size: .8rem; letter-spacing: .12em; }
.faq-zone { padding: 70px 28px; background: var(--panel); }
.faq-list { display: grid; grid-template-columns: repeat(1, minmax(0, 1fr)); gap: 12px; }
.faq-list details { padding: 17px; border: 1px solid var(--line); border-radius: var(--radius); }
.faq-list summary { cursor: pointer; font-weight: 750; }
.faq-list p { margin-top: 12px; }
.page-note { padding: 54px 28px; border-top: 1px solid var(--line); }
.page-note > article, .page-note > section, .page-note > div { display: grid; grid-template-columns: .8fr 1.2fr; gap: 28px; align-items: start; }
.page-note aside, .page-note dl, .page-note blockquote, .page-note ol { padding: 22px; background: var(--panel); border-left: 3px solid var(--accent); }
.page-note p { margin-bottom: 14px; }
.final-cta { padding: 80px 28px; text-align: left; border-top: 1px solid var(--line); }
.final-cta > div { max-width: 800px; margin-inline: 0; }
.site-footer { display: grid; grid-template-columns: .8fr 1.2fr; gap: 30px; padding: 48px 28px; border-top: 1px solid var(--line); }
.site-footer nav, .friend-links ul { display: flex; gap: 12px 20px; flex-wrap: wrap; }
.friend-links ul { list-style: none; padding: 0; }
.friend-links h2 { font-size: 1rem; color: var(--accent); }
.footer-brand > a, .footer-title { display: inline-block; margin-bottom: 12px; font-weight: 850; }
@media (max-width: 820px) {
    .site-header { flex-wrap: wrap; padding: 14px 18px; }
    .menu-toggle { display: inline-block; }
    .site-header nav { display: none; width: 100%; padding-top: 14px; }
    .site-header nav.is-open { display: grid; grid-template-columns: 1fr 1fr; }
    .page-opening { padding-inline: 18px; }
    .page-opening > div, .page-opening > article, .page-opening > section, .amethyst-opening, .amethyst-opening, .gallery-opening, .network-opening, .immersive-opening, .portal-opening { grid-template-columns: 1fr; min-height: auto; }
    .content-block { padding-inline: 18px; }
    .content-block > article, .content-block > section, .content-block > div, .content-block .split, .content-block .cards { grid-template-columns: 1fr; }
    .page-note > article, .page-note > section, .page-note > div { grid-template-columns: 1fr; }
    .news-grid { grid-template-columns: 1fr 1fr; }
    .site-footer { grid-template-columns: 1fr; padding-inline: 18px; }
}
@media (max-width: 480px) {
    h2 { font-size: clamp(1.65rem, 9vw, 2.65rem); }
    .news-grid, .faq-list { grid-template-columns: 1fr; }
    .page-opening .visual { min-height: 240px; }
    .hero-tags span { font-size: .78rem; }
}