:root {
  color-scheme: dark;
  --ink: #080609;
  --panel: #111016;
  --panel-2: #19161d;
  --text: #f4efe7;
  --muted: #b8afb5;
  --line: rgba(255,255,255,.13);
  --red: #b8241c;
  --red-bright: #ed4a32;
  --gold: #d9a85e;
  --max: 1280px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--ink); color: var(--text); font-family: "Microsoft YaHei", "PingFang SC", system-ui, sans-serif; line-height: 1.75; overflow-x: hidden; }
body::selection { background: var(--red); color: #fff; }
a { color: inherit; }
img { display: block; max-width: 100%; }
h1, h2, h3, p, figure { margin-top: 0; }

.site-header {
  position: absolute;
  z-index: 20;
  top: 0;
  left: 0;
  width: 100%;
  min-height: 84px;
  display: grid;
  grid-template-columns: 210px 1fr 210px;
  align-items: center;
  gap: 2rem;
  padding: 0 max(28px, calc((100vw - var(--max)) / 2));
  border-bottom: 1px solid rgba(255,255,255,.12);
  background: linear-gradient(180deg, rgba(5,4,6,.84), transparent);
}
.site-header.solid { position: relative; background: rgba(8,6,9,.97); }
.mini-brand { display: block; width: 150px; height: 70px; overflow: hidden; }
.mini-brand img { width: 190px; max-width: none; margin: -30px 0 0 -20px; filter: drop-shadow(0 8px 18px #000); }
nav { display: flex; justify-content: center; gap: clamp(1rem, 2.8vw, 2.8rem); }
nav a, .portal-link { position: relative; color: #e7dfe1; text-decoration: none; font-size: .85rem; letter-spacing: .08em; white-space: nowrap; }
nav a::after { content: ""; position: absolute; left: 0; bottom: -.65rem; width: 0; height: 2px; background: var(--red-bright); transition: width .25s ease; }
nav a:hover::after, nav a:focus-visible::after { width: 100%; }
.nav-feedback { color: #ffd2c8; }
.portal-link { justify-self: end; color: #c9bec2; font-size: .76rem; }

.hero { position: relative; min-height: min(960px, 100svh); display: grid; align-items: center; background: url("hero-bg.jpg") center / cover no-repeat; }
.hero-shade { position: absolute; inset: 0; background: linear-gradient(90deg, rgba(5,4,6,.96) 0%, rgba(5,4,6,.77) 32%, rgba(5,4,6,.12) 65%), linear-gradient(0deg, var(--ink), transparent 24%), radial-gradient(circle at 64% 34%, transparent, rgba(8,6,9,.32) 70%); }
.hero-copy { position: relative; z-index: 2; width: min(var(--max), calc(100% - 48px)); margin-inline: auto; padding-top: 7rem; }
.kicker, .eyebrow { margin-bottom: 1rem; color: var(--gold); font-size: .69rem; font-weight: 700; letter-spacing: .24em; }
.hero-logo { width: min(500px, 48vw); height: auto; margin: -5.2rem 0 -4.6rem -1.8rem; filter: drop-shadow(0 20px 38px #000); }
.hero h1 { margin-bottom: 1.2rem; font-family: "STKaiti", "KaiTi", serif; font-size: clamp(3rem, 6vw, 6.2rem); font-weight: 500; letter-spacing: .04em; line-height: 1.04; text-shadow: 0 8px 30px #000; }
.hero-lead { max-width: 620px; color: #cec3c7; font-size: 1rem; }
.hero-actions { display: flex; flex-wrap: wrap; gap: .85rem; margin-top: 2rem; }
.button { min-width: 174px; min-height: 50px; display: inline-flex; align-items: center; justify-content: center; padding: .7rem 1.35rem; border: 1px solid; text-decoration: none; font-size: .85rem; letter-spacing: .08em; transition: transform .2s ease, background .2s ease; }
.button:hover, .button:focus-visible { transform: translateY(-2px); }
.button-primary { border-color: #f37b5f; background: linear-gradient(135deg, #d7412c, #8e1716); box-shadow: 0 12px 34px rgba(184,36,28,.24); }
.button-secondary { border-color: rgba(255,255,255,.28); background: rgba(8,6,9,.4); backdrop-filter: blur(8px); }
.status-chip { display: inline-flex; align-items: center; gap: .6rem; margin: 1.6rem 0 0; color: #bfb3b7; font-size: .75rem; }
.status-chip span { width: 7px; height: 7px; border-radius: 50%; background: var(--gold); box-shadow: 0 0 12px var(--gold); }
.scroll-cue { position: absolute; z-index: 2; right: max(28px, calc((100vw - var(--max)) / 2)); bottom: 2.3rem; display: flex; align-items: center; gap: .7rem; color: #aa9ea3; text-decoration: none; font-size: .68rem; letter-spacing: .18em; }
.scroll-cue span { width: 44px; height: 1px; background: var(--red-bright); }

.intro, .gallery-section, .news-section, .feedback-cta, footer, .document, .support-shell {
  width: min(var(--max), calc(100% - 48px));
  margin-inline: auto;
}
.intro { display: grid; grid-template-columns: .3fr 1.1fr .8fr; gap: clamp(2rem, 5vw, 5rem); padding: 8rem 0 5rem; }
.section-label { color: #6f6469; font: 400 .7rem Georgia, serif; letter-spacing: .18em; }
.section-label span { display: block; margin-bottom: .7rem; color: var(--red-bright); font-size: 2.8rem; letter-spacing: 0; }
.intro h2, .section-heading h2, .news-heading h2, .feedback-cta h2, .world h2 { margin-bottom: 0; font-family: "STKaiti", "KaiTi", serif; font-size: clamp(2.5rem, 4.8vw, 4.8rem); font-weight: 400; line-height: 1.17; }
.intro-copy { color: var(--muted); }

.feature-grid { width: min(1500px, calc(100% - 32px)); margin: 0 auto 8rem; display: grid; grid-template-columns: 1.25fr 1fr 1fr; gap: 1rem; }
.feature { position: relative; min-height: 620px; overflow: hidden; border: 1px solid var(--line); background: var(--panel); }
.feature::after { content: ""; position: absolute; inset: 36% 0 0; background: linear-gradient(0deg, rgba(6,5,7,.98), transparent); }
.feature img { width: 100%; height: 100%; object-fit: cover; transition: transform .65s ease; }
.feature:hover img { transform: scale(1.035); }
.feature > div { position: absolute; z-index: 2; left: 2rem; right: 2rem; bottom: 1.8rem; }
.feature span { color: var(--red-bright); font: 400 1rem Georgia, serif; }
.feature h3 { margin: .4rem 0 .5rem; font-family: "STKaiti", "KaiTi", serif; font-size: 2rem; font-weight: 400; }
.feature p { margin-bottom: 0; color: #c7bdc1; font-size: .86rem; }

.world { position: relative; min-height: 720px; overflow: hidden; }
.world > img { width: 100%; height: 720px; object-fit: cover; }
.world::after { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, rgba(8,6,9,.05), rgba(8,6,9,.88) 72%), linear-gradient(0deg, var(--ink), transparent 24%); }
.world-copy { position: absolute; z-index: 2; right: max(28px, calc((100vw - var(--max)) / 2)); top: 50%; width: min(520px, calc(100% - 48px)); transform: translateY(-50%); }
.world-copy p:last-child { color: #c9bfc3; }

.gallery-section { padding: 8rem 0; }
.section-heading { display: grid; grid-template-columns: 1fr .55fr; align-items: end; gap: 3rem; margin-bottom: 3rem; }
.section-heading > p { color: var(--muted); }
.gallery { display: grid; grid-auto-columns: minmax(250px, 1fr); grid-auto-flow: column; gap: 1rem; overflow-x: auto; padding-bottom: 1rem; scroll-snap-type: x mandatory; scrollbar-color: var(--red) var(--panel); }
.gallery figure { position: relative; min-width: 250px; aspect-ratio: 9 / 15; margin: 0; overflow: hidden; border: 1px solid var(--line); scroll-snap-align: start; }
.gallery figure::after { content: ""; position: absolute; inset: 65% 0 0; background: linear-gradient(0deg, rgba(5,4,6,.92), transparent); }
.gallery img { width: 100%; height: 100%; object-fit: cover; }
.gallery figcaption { position: absolute; z-index: 2; left: 1.2rem; bottom: 1rem; font-size: .85rem; letter-spacing: .12em; }

.news-section { display: grid; grid-template-columns: .3fr .8fr 1.1fr; gap: clamp(2rem, 5vw, 5rem); padding: 8rem 0; border-top: 1px solid var(--line); }
.news-list { border-top: 1px solid var(--line); }
.news-list article { display: grid; grid-template-columns: 100px 1fr auto; gap: 1rem; padding: 1.5rem 0; border-bottom: 1px solid var(--line); }
.news-list time, .news-list span { color: #80757a; font-size: .7rem; letter-spacing: .1em; }
.news-list h3 { margin: 0 0 .35rem; font-size: .95rem; }
.news-list p { margin: 0; color: var(--muted); font-size: .84rem; }
.news-list span { color: var(--red-bright); }

.feedback-cta { margin-bottom: 8rem; padding: clamp(3rem, 7vw, 7rem); border: 1px solid rgba(237,74,50,.32); background: radial-gradient(circle at 85% 10%, rgba(184,36,28,.28), transparent 34rem), var(--panel); text-align: center; }
.feedback-cta p:not(.eyebrow) { max-width: 720px; margin-inline: auto; color: var(--muted); }
.feedback-cta .button { margin-top: 1rem; }

footer { display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; gap: 2rem; padding: 2rem 0; border-top: 1px solid var(--line); color: #8f8589; font-size: .72rem; }
footer > div { display: flex; align-items: center; gap: 1rem; }
footer img { width: 90px; height: 48px; object-fit: cover; object-position: center; }
footer p { margin-bottom: 0; }
.filing { justify-self: end; display: flex; flex-wrap: wrap; justify-content: flex-end; gap: .9rem; }
.filing a { text-decoration: none; }
.filing a:hover { color: #fff; }

.support-page, .document-page { background: radial-gradient(circle at 70% 0, rgba(137,24,20,.22), transparent 35rem), var(--ink); }
.support-shell { padding: 7rem 0; }
.support-card { padding: clamp(2rem, 6vw, 5rem); border: 1px solid rgba(237,74,50,.28); background: rgba(17,16,22,.94); box-shadow: 0 28px 80px rgba(0,0,0,.42); }
.support-card h1, .document h1 { margin-bottom: 1rem; font-family: "STKaiti", "KaiTi", serif; font-size: clamp(3.5rem, 7vw, 6.8rem); font-weight: 400; line-height: 1; }
.support-lead { max-width: 850px; color: var(--muted); font-size: 1.02rem; }
.support-types { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; margin: 3rem 0; }
.support-types article { padding: 1.5rem; border: 1px solid var(--line); background: var(--panel-2); }
.support-types span { color: var(--red-bright); font: 400 1rem Georgia, serif; }
.support-types h2 { margin: 1.4rem 0 .5rem; font-size: 1.05rem; }
.support-types p, .support-notice p { margin-bottom: 0; color: var(--muted); font-size: .86rem; }
.support-notice { padding: 1.25rem; border-left: 3px solid var(--gold); background: rgba(217,168,94,.08); }
.support-email { margin-top: 2rem; color: #a99ea2; font-size: .82rem; }
.support-email a { color: #f1d5a7; }

.document { padding: 7rem 0; }
.document-meta { color: #83787d; }
.document section { max-width: 920px; padding: 2rem 0; border-top: 1px solid var(--line); }
.document h2 { margin-bottom: .7rem; font-size: 1.12rem; }
.document section p { color: var(--muted); }

@media (max-width: 980px) {
  .site-header { grid-template-columns: 150px 1fr; }
  .portal-link { display: none; }
  .intro, .news-section { grid-template-columns: 1fr; }
  .section-label { display: none; }
  .feature-grid { grid-template-columns: 1fr 1fr; }
  .feature-large { grid-row: span 2; }
  .support-types { grid-template-columns: 1fr; }
  footer { grid-template-columns: 1fr; text-align: center; }
  footer > div, .filing { justify-self: center; justify-content: center; }
}

@media (max-width: 720px) {
  .site-header { position: relative; min-height: auto; grid-template-columns: 1fr; gap: 0; padding: .5rem 16px .9rem; background: rgba(8,6,9,.97); }
  .mini-brand { justify-self: center; }
  nav { width: 100%; justify-content: flex-start; gap: 1.3rem; overflow-x: auto; padding: .25rem 0 .45rem; scrollbar-width: none; }
  nav::-webkit-scrollbar { display: none; }
  .hero { min-height: 800px; background-position: 62% center; }
  .hero-shade { background: linear-gradient(90deg, rgba(5,4,6,.94), rgba(5,4,6,.52)), linear-gradient(0deg, var(--ink), transparent 25%); }
  .hero-copy { width: calc(100% - 32px); padding-top: 2rem; }
  .hero-logo { width: min(430px, 96vw); margin: -4rem 0 -3.8rem -1.4rem; }
  .scroll-cue { display: none; }
  .intro, .gallery-section, .news-section, .feedback-cta, footer, .document, .support-shell { width: min(var(--max), calc(100% - 32px)); }
  .intro { padding: 5rem 0 3rem; }
  .feature-grid { width: calc(100% - 32px); grid-template-columns: 1fr; margin-bottom: 5rem; }
  .feature { min-height: 580px; }
  .world, .world > img { min-height: 620px; height: 620px; }
  .world::after { background: linear-gradient(0deg, rgba(8,6,9,.96), rgba(8,6,9,.16)); }
  .world-copy { top: auto; right: 16px; left: 16px; bottom: 3rem; width: auto; transform: none; }
  .gallery-section, .news-section { padding: 5rem 0; }
  .section-heading { grid-template-columns: 1fr; gap: 1rem; }
  .news-list article { grid-template-columns: 1fr auto; }
  .news-list time { grid-column: 1 / -1; }
  .feedback-cta { margin-bottom: 5rem; }
  .support-shell, .document { padding: 4rem 0; }
}