/* 釉色地貌视觉系统：公共展示端的第一版重设计。 */
:root {
  color-scheme: dark;
  --bg: #0b141b;
  --surface: #101d26;
  --surface-2: #132630;
  --surface-3: #1a3033;
  --surface-4: #27403f;
  --line: rgba(228, 226, 205, 0.14);
  --line-strong: rgba(228, 226, 205, 0.28);
  --text: #f2eee2;
  --text-muted: #a8b5b3;
  --text-dim: #748785;
  --accent: #d0a45a;
  --accent-strong: #f0c878;
  --accent-soft: rgba(208, 164, 90, 0.14);
  --accent-line: rgba(208, 164, 90, 0.46);
  --ok: #7bc391;
  --warn: #e8b46a;
  --error: #ee8478;
  --radius-sm: 5px;
  --radius: 10px;
  --radius-lg: 16px;
  --shadow-1: 0 1px 2px rgba(0, 0, 0, 0.18);
  --shadow-2: 0 18px 50px rgba(0, 0, 0, 0.28);
  --maxw: 1240px;
  --header-h: 76px;
}

html {
  background: var(--bg);
}

body {
  background:
    radial-gradient(80% 55% at 92% 0%, rgba(116, 164, 127, 0.09), transparent 64%),
    var(--bg);
  color: var(--text);
}

a {
  color: var(--accent-strong);
}

a:hover {
  color: #ffe3a8;
}

h1,
h2,
h3,
h4 {
  color: var(--text);
  letter-spacing: 0;
}

.container {
  max-width: var(--maxw);
  padding-right: 28px;
  padding-left: 28px;
}

.site-header {
  background: rgba(11, 20, 27, 0.84);
  border-bottom: 1px solid var(--line);
  box-shadow: 0 10px 30px rgba(4, 9, 12, 0.18);
}

.site-header__inner {
  gap: 28px;
}

.brand {
  gap: 12px;
  color: var(--text);
  letter-spacing: 0.02em;
}

.brand:hover {
  color: var(--text);
}

.brand__logo {
  width: 38px;
  height: 38px;
}

.brand__name {
  font-size: 1rem;
  font-weight: 700;
}

.brand__tag {
  color: var(--text-dim);
  font-size: 0.62rem;
  letter-spacing: 0.2em;
}

.site-nav {
  gap: 4px;
}

.site-nav__link {
  padding: 9px 13px;
  border-radius: 6px;
  color: var(--text-muted);
  font-size: 0.88rem;
  transition: color 0.18s ease, background 0.18s ease;
}

.site-nav__link:hover {
  background: rgba(208, 164, 90, 0.1);
  color: var(--text);
}

.site-nav__link.is-active {
  background: transparent;
  color: var(--accent-strong);
  box-shadow: inset 0 -2px 0 var(--accent);
}

.site-nav__toggle {
  padding: 7px 12px;
  border-color: var(--line-strong);
  border-radius: 6px;
  background: transparent;
  color: var(--text);
  font-size: 0.85rem;
}

.site-main {
  min-height: 64vh;
}

.section {
  padding: 104px 0;
}

.section__head {
  align-items: flex-end;
  margin-bottom: 38px;
}

.section__title {
  position: relative;
  padding-left: 18px;
  font-size: clamp(1.5rem, 2.8vw, 2.25rem);
}

.section__title::before {
  position: absolute;
  top: 0.2em;
  bottom: 0.2em;
  left: 0;
  width: 3px;
  border-radius: 99px;
  background: var(--accent);
  content: "";
}

.section__subtitle {
  color: var(--text-muted);
  font-size: 0.92rem;
}

.btn {
  border-color: var(--line-strong);
  border-radius: 6px;
  background: transparent;
  color: var(--text);
  font-size: 0.88rem;
  transition: background 0.18s ease, border-color 0.18s ease, transform 0.18s ease;
}

.btn:hover {
  background: var(--surface-3);
  border-color: var(--accent-line);
  color: var(--text);
}

.btn--primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #172018;
  font-weight: 700;
}

.btn--primary:hover {
  background: var(--accent-strong);
  border-color: var(--accent-strong);
  color: #172018;
}

.btn--ghost {
  border-color: rgba(242, 238, 226, 0.32);
}

.chip {
  border-color: var(--line);
  border-radius: 5px;
  background: rgba(255, 255, 255, 0.03);
  color: var(--text-muted);
  font-size: 0.78rem;
}

.chip:hover,
.chip[aria-pressed="true"],
.chip.is-active {
  border-color: var(--accent-line);
  background: var(--accent-soft);
  color: var(--accent-strong);
}

.card {
  border-color: var(--line);
  border-radius: 10px;
  background: var(--surface);
  box-shadow: var(--shadow-1);
}

.card:hover {
  border-color: var(--accent-line);
  box-shadow: var(--shadow-2);
}

.card__body {
  padding: 18px 20px 22px;
}

.card__title {
  font-size: 1rem;
}

.card__summary {
  color: var(--text-muted);
  font-size: 0.88rem;
}

.card__meta {
  color: var(--text-dim);
  font-size: 0.76rem;
}

.media {
  background: linear-gradient(135deg, #14262e, #213634);
}

.media__placeholder {
  background:
    radial-gradient(110% 90% at 18% 8%, rgba(208, 164, 90, 0.12), transparent 60%),
    linear-gradient(135deg, #14262e, #213634);
}

.hero {
  min-height: min(78vh, 720px);
  border-bottom: 1px solid var(--line);
  background: #0b141b;
}

.hero__media img {
  object-position: center;
}

.hero__media::after {
  background: linear-gradient(180deg, rgba(11, 20, 27, 0) 62%, var(--bg) 100%);
}

/* 这一层（以及 game-studio.css 里同名的两条）原先铺的是 /assets/img/ 里的美术
   概念图，并把真实 <img> 透明掉。现在主视觉一律取服务器图片，home.js 也不再
   生成 hero__media--concept，所以这里只保留中性底色，不再指向任何内置图。 */
.hero__media--concept::before {
  position: absolute;
  inset: 0;
  z-index: 0;
  background: var(--surface-3);
  content: "";
}

.hero__media--concept .media {
  z-index: 1;
  opacity: 0;
}

.hero__media--concept::after {
  z-index: 2;
}

.hero__inner {
  padding: 110px 28px 132px;
}

.hero__title {
  max-width: 16ch;
  margin-bottom: 24px;
  color: #f6f0df;
  font-size: clamp(2.6rem, 6vw, 5.8rem);
  font-weight: 700;
  line-height: 1.08;
  text-shadow: 0 3px 24px rgba(3, 8, 12, 0.28);
}

.hero__lead {
  max-width: 42ch;
  margin-bottom: 32px;
  color: rgba(242, 238, 226, 0.78);
  font-size: 1rem;
  line-height: 1.9;
  text-shadow: 0 2px 14px rgba(3, 8, 12, 0.36);
}

.hero__actions {
  gap: 12px;
}

.hero__scroll {
  bottom: 26px;
  color: rgba(242, 238, 226, 0.62);
  font-size: 0.7rem;
  letter-spacing: 0.28em;
}

.home .page-body {
  padding-bottom: 0;
}

.home .section:first-child {
  padding-top: 88px;
}

.home .page-flow {
  min-width: 0;
}

.stats {
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0;
  margin-top: 46px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.stat {
  padding: 22px 24px 24px;
  border: 0;
  border-right: 1px solid var(--line);
  border-radius: 0;
  background: transparent;
  box-shadow: none;
}

.stat:last-child {
  border-right: 0;
}

.stat__value {
  color: var(--accent-strong);
  font-size: clamp(1.8rem, 3vw, 2.7rem);
  font-variant-numeric: tabular-nums;
}

.stat__label {
  margin-top: 6px;
  color: var(--text-dim);
  font-size: 0.78rem;
}

.about__lead {
  max-width: 58ch;
  color: var(--text-muted);
  font-size: 1.03rem;
  line-height: 1.95;
}

.group-banners {
  gap: 42px;
}

.group-banner__open {
  border-color: var(--line);
  border-radius: 12px;
  background: var(--surface-2);
  box-shadow: var(--shadow-1);
  transition: border-color 0.28s ease, box-shadow 0.28s ease, transform 0.28s ease;
}

.group-banner__open:hover {
  border-color: var(--accent-line);
  box-shadow: var(--shadow-2);
  transform: translateY(-4px);
}

.group-banner__media .media {
  aspect-ratio: 16 / 6.2;
}

.group-banner__body {
  padding: 92px 34px 26px;
  background: linear-gradient(180deg, rgba(10, 18, 24, 0) 0%, rgba(10, 18, 24, 0.74) 54%, rgba(10, 18, 24, 0.96) 100%);
}

.group-banner__kind {
  margin-bottom: 10px;
  padding: 3px 9px;
  border: 1px solid rgba(242, 238, 226, 0.34);
  border-radius: 4px;
  color: rgba(242, 238, 226, 0.78);
  font-size: 0.68rem;
  letter-spacing: 0.18em;
}

.group-banner__name {
  margin-bottom: 8px;
  font-size: clamp(1.5rem, 3vw, 2.4rem);
}

.group-banner__summary {
  color: rgba(242, 238, 226, 0.76);
  font-size: 0.9rem;
}

.group-banner__more {
  margin-top: 12px;
  color: var(--accent-strong);
  font-size: 0.78rem;
}

.group-tags--banner {
  margin-top: 14px;
  padding: 0 6px 0 2px;
}

.group-tags__label {
  color: var(--text-dim);
  font-size: 0.68rem;
}

.home-contact {
  max-width: 640px;
  gap: 14px 34px;
}

.home-contact__label {
  color: var(--text-dim);
  font-size: 0.76rem;
}

.home-contact__value {
  color: var(--text);
  font-size: 0.96rem;
}

.site-footer {
  margin-top: 0;
  border-top: 1px solid var(--line);
  background: #081117;
}

.footer__grid {
  padding: 62px 0 46px;
}

.footer__title {
  color: var(--text-dim);
  font-size: 0.72rem;
  letter-spacing: 0.18em;
}

.footer__list {
  color: var(--text-muted);
  font-size: 0.84rem;
}

.footer__list a {
  color: var(--text-muted);
}

.footer__list a:hover {
  color: var(--accent-strong);
}

.footer__bottom {
  border-top-color: var(--line);
  color: var(--text-dim);
  font-size: 0.76rem;
}

.outline__title {
  color: var(--text-dim);
}

.outline__list::before {
  background: linear-gradient(180deg, transparent, var(--line-strong) 16%, var(--line-strong) 84%, transparent);
}

.outline__thumb {
  background: var(--accent-soft);
}

.outline__link {
  color: var(--text-dim);
}

.outline__link:hover,
.outline__link.is-active {
  color: var(--accent-strong);
}

.outline__link::before {
  background: var(--bg);
  box-shadow: inset 0 0 0 1.5px var(--line-strong);
}

.outline__link.is-active::before {
  background: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

.page-head,
.news-hero {
  border-bottom-color: var(--line);
  background: linear-gradient(160deg, rgba(19, 38, 48, 0.74), rgba(11, 20, 27, 0.2));
}

.page-head__eyebrow {
  color: var(--accent-strong);
}

.group-block {
  border-color: var(--line);
  border-radius: 12px;
  background: rgba(16, 29, 38, 0.72);
  box-shadow: var(--shadow-1);
}

.group-block__figure {
  border-color: var(--line);
  background: var(--surface-3);
}

.group-block__figure--art {
  background-position: center;
  background-size: cover;
}

.group-block__figure--art .media {
  background: transparent;
}

.group-block__figure--art .media__placeholder,
.group-block__figure--art .media > img {
  opacity: 0 !important;
}

.group-block__summary,
.group-block__body,
.group-block__works-hint,
.news-hero__lead {
  color: var(--text-muted);
}

.group-block__body,
.group-block__works,
.group-tags--block {
  border-top-color: var(--line);
}

.contact-form,
.contact-info__item {
  border-color: var(--line);
  border-radius: 12px;
  background: var(--surface);
}

.input,
.textarea,
.select {
  border-color: var(--line-strong);
  border-radius: 6px;
  background: #0c1820;
  color: var(--text);
}

.input:focus,
.textarea:focus,
.select:focus {
  border-color: var(--accent-line);
}

.field__label,
.contact-info__label {
  color: var(--text-dim);
}

.masonry .card {
  border-radius: 10px;
}

.carousel__nav {
  border-color: var(--line-strong);
  border-radius: 6px;
  background: transparent;
  color: var(--text);
  box-shadow: none;
}

.carousel__nav:hover:not(:disabled) {
  border-color: var(--accent-line);
  color: var(--accent-strong);
}

.carousel__dot {
  background: var(--surface-4);
}

.carousel__dot.is-active {
  background: var(--accent);
}

.loading-screen,
.empty-state,
.error-state {
  color: var(--text-muted);
}

.empty-state,
.error-state {
  border-color: var(--line-strong);
  border-radius: 10px;
  background: rgba(16, 29, 38, 0.5);
}

.empty-state__title,
.error-state__title {
  color: var(--text);
}

.toast {
  border-color: var(--line-strong);
  background: var(--surface);
}

@media (max-width: 900px) {
  .hero__title {
    max-width: 12ch;
  }

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

  .stat:nth-child(2) {
    border-right: 0;
  }

  .stat:nth-child(n + 3) {
    border-top: 1px solid var(--line);
  }
}

@media (max-width: 720px) {
  .container {
    padding-right: 20px;
    padding-left: 20px;
  }

  .site-nav {
    background: rgba(11, 20, 27, 0.98);
    border-bottom-color: var(--line);
  }

  .hero {
    min-height: 680px;
    align-items: flex-end;
  }

  .hero__media img {
    object-position: 62% center;
  }

  .hero__media::after {
    background: linear-gradient(180deg, rgba(11, 20, 27, 0.04) 38%, rgba(11, 20, 27, 0.2) 54%, var(--bg) 96%);
  }

  .hero__inner {
    padding: 80px 20px 78px;
  }

  .hero__title {
    max-width: 10ch;
    font-size: clamp(2.35rem, 12vw, 4rem);
  }

  .hero__lead {
    max-width: 34ch;
    font-size: 0.92rem;
  }

  .section {
    padding: 78px 0;
  }

  .home .section:first-child {
    padding-top: 68px;
  }

  .section__head {
    align-items: flex-start;
    flex-direction: column;
    margin-bottom: 28px;
  }

  .section__head > .btn {
    align-self: flex-start;
  }

  .group-banner__media .media {
    aspect-ratio: 4 / 3;
  }

  .group-banner__body {
    position: static;
    padding: 20px 20px 24px;
    background: var(--surface-2);
    color: var(--text);
  }

  .group-banner__kind {
    border-color: var(--accent-line);
    background: var(--accent-soft);
    color: var(--accent-strong);
  }

  .group-banner__name {
    color: var(--text);
  }

  .group-banner__summary {
    color: var(--text-muted);
  }

  .group-banner__more {
    opacity: 1;
    transform: none;
  }
}

@media (max-width: 520px) {
  .stats {
    grid-template-columns: 1fr 1fr;
  }

  .stat {
    padding: 18px 14px 20px;
  }

  .stat:nth-child(odd) {
    border-right: 1px solid var(--line);
  }

  .stat:nth-child(even) {
    border-right: 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .group-banner__open {
    transition: none;
  }
}