/* =========================================================
   银河娱乐 · /assets/site.css
   深空观测站视觉体系：reset、变量、排版、头部、页脚、基础组件
   ========================================================= */

/* ---------- reset ---------- */
*,
*::before,
*::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body { margin: 0; }

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

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

button,
input,
select,
textarea {
  font: inherit;
  color: inherit;
}

button {
  background: none;
  border: 0;
  padding: 0;
  cursor: pointer;
}

ul,
ol {
  margin: 0;
  padding: 0;
  list-style: none;
}

h1, h2, h3, h4, h5, h6,
p, figure, blockquote, hr {
  margin: 0;
}

:focus-visible {
  outline: 2px solid #35E0E0;
  outline-offset: 3px;
  border-radius: 2px;
}

/* ---------- 变量 ---------- */
:root {
  --deep-space: #05070F;
  --nebula-navy: #0B1226;
  --orbit-slate: #141C33;
  --galaxy-purple: #6B4BD6;
  --aurora-cyan: #35E0E0;
  --dark-gold: #C9A24B;
  --star-white: #F4F6FF;
  --mist-gray: #A8B0C8;
  --amber-cue: #F2A03D;
  --on-cyan: #04121A;

  --line-purple: rgba(107, 75, 214, 0.45);
  --line-soft: rgba(168, 176, 200, 0.18);

  --font-display: "Noto Serif SC", "Source Serif 4", "Songti SC", Georgia, serif;
  --font-body: "Noto Sans SC", Inter, "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  --font-mono: "JetBrains Mono", "Roboto Mono", ui-monospace, SFMono-Regular, Menlo, monospace;

  --step-12: 0.75rem;
  --step-14: 0.875rem;
  --step-16: 1rem;
  --step-18: 1.125rem;
  --step-22: 1.375rem;
  --step-28: 1.75rem;
  --step-40: 2.5rem;
  --step-56: 3.5rem;
  --step-72: 4.5rem;

  --gutter: clamp(1rem, 4vw, 2.5rem);
  --radius: 8px;
  --shadow-hard: 8px 8px 0 rgba(107, 75, 214, 0.32);
}

/* ---------- 基础排版 ---------- */
body {
  background-color: var(--deep-space);
  background-image:
    radial-gradient(circle at 10% -12%, rgba(107, 75, 214, 0.30), transparent 55%),
    radial-gradient(circle at 90% 6%, rgba(53, 224, 224, 0.12), transparent 48%);
  background-repeat: no-repeat;
  background-attachment: fixed;
  color: var(--star-white);
  font-family: var(--font-body);
  font-size: var(--step-16);
  line-height: 1.9;
  min-height: 100vh;
  overflow-x: hidden;
}

body::before {
  content: "";
  position: fixed;
  inset: -10%;
  z-index: -1;
  pointer-events: none;
  background-image:
    radial-gradient(1.4px 1.4px at 12% 22%, rgba(244, 246, 255, 0.55), transparent 60%),
    radial-gradient(1.2px 1.2px at 34% 68%, rgba(53, 224, 224, 0.45), transparent 60%),
    radial-gradient(1.6px 1.6px at 58% 14%, rgba(244, 246, 255, 0.40), transparent 60%),
    radial-gradient(1.1px 1.1px at 72% 46%, rgba(201, 162, 75, 0.50), transparent 60%),
    radial-gradient(1.5px 1.5px at 86% 78%, rgba(244, 246, 255, 0.35), transparent 60%),
    radial-gradient(1.2px 1.2px at 24% 88%, rgba(107, 75, 214, 0.60), transparent 60%),
    radial-gradient(1.3px 1.3px at 46% 38%, rgba(244, 246, 255, 0.30), transparent 60%),
    radial-gradient(1px 1px at 92% 18%, rgba(53, 224, 224, 0.40), transparent 60%);
  animation: star-drift 60s linear infinite alternate;
}

@keyframes star-drift {
  from { transform: translate3d(0, 0, 0); }
  to { transform: translate3d(-2%, -1.5%, 0); }
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 900;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--star-white);
}

/* ---------- 容器 ---------- */
.shell {
  width: 100%;
  max-width: 1280px;
  margin-inline: auto;
  padding-inline: var(--gutter);
}

/* ---------- 跳过入口与进度条 ---------- */
.skip-link {
  position: fixed;
  top: 8px;
  left: 8px;
  z-index: 200;
  transform: translateY(-180%);
  background: var(--aurora-cyan);
  color: var(--on-cyan);
  font-size: var(--step-14);
  font-weight: 700;
  letter-spacing: 0.04em;
  padding: 10px 18px;
  border-radius: var(--radius);
  transition: transform 0.2s ease;
}

.skip-link:focus {
  transform: translateY(0);
}

.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  z-index: 190;
  pointer-events: none;
  transform: scaleX(0);
  transform-origin: 0 50%;
  background: linear-gradient(90deg, var(--galaxy-purple), var(--aurora-cyan) 70%, var(--dark-gold));
}

/* =========================================================
   头部
   ========================================================= */
.site-header {
  position: sticky;
  top: 0;
  z-index: 150;
}

/* --- 上层信息带 --- */
.brand-band {
  background: linear-gradient(90deg, rgba(11, 18, 38, 0.98), rgba(5, 7, 15, 0.98) 65%);
  border-bottom: 1px solid var(--line-purple);
  font-size: var(--step-12);
  color: var(--mist-gray);
}

.brand-band__inner {
  display: flex;
  align-items: center;
  flex-wrap: nowrap;
  gap: clamp(0.75rem, 2vw, 2rem);
  min-height: 44px;
  padding-block: 0.35rem;
}

.brand-band__id {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  white-space: nowrap;
  flex: 0 0 auto;
}

.brand-band__name {
  color: var(--star-white);
  font-weight: 600;
  letter-spacing: 0.06em;
}

.cert-badge {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.1em;
  color: var(--dark-gold);
  background: rgba(201, 162, 75, 0.08);
  border: 1px solid rgba(201, 162, 75, 0.55);
  border-radius: 999px;
  padding: 2px 9px;
  white-space: nowrap;
}

.ticker {
  flex: 1 1 auto;
  min-width: 0;
  overflow: hidden;
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 7%, #000 93%, transparent);
  mask-image: linear-gradient(90deg, transparent, #000 7%, #000 93%, transparent);
}

.ticker__track {
  display: inline-flex;
  gap: 3rem;
  width: max-content;
  white-space: nowrap;
  animation: ticker-scroll 42s linear infinite;
}

.ticker__item {
  font-size: var(--step-12);
  letter-spacing: 0.08em;
  color: var(--mist-gray);
}

.ticker__item::before {
  content: "";
  display: inline-block;
  width: 5px;
  height: 5px;
  margin-right: 0.55rem;
  border-radius: 50%;
  background: var(--aurora-cyan);
  box-shadow: 0 0 8px var(--aurora-cyan);
  vertical-align: middle;
}

@keyframes ticker-scroll {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

.brand-band__hours {
  flex: 0 0 auto;
  white-space: nowrap;
  letter-spacing: 0.06em;
}

.info-toggle {
  display: none;
  margin-left: auto;
  font-size: var(--step-12);
  letter-spacing: 0.08em;
  color: var(--aurora-cyan);
  border: 1px solid rgba(53, 224, 224, 0.45);
  border-radius: 999px;
  padding: 3px 12px;
  transition: background-color 0.2s ease;
}

.info-toggle:hover {
  background: rgba(53, 224, 224, 0.12);
}

/* --- 下层栏目导航 --- */
.nav-band {
  background: rgba(5, 7, 15, 0.94);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1.5px solid var(--line-purple);
}

.nav-band__inner {
  display: flex;
  align-items: center;
  gap: clamp(1rem, 2.5vw, 2.5rem);
  min-height: 72px;
}

.brand-mark {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  flex: 0 0 auto;
}

.brand-mark__glyph {
  width: 30px;
  height: 30px;
  flex: 0 0 auto;
  transition: transform 0.5s ease;
}

.brand-mark:hover .brand-mark__glyph {
  transform: rotate(24deg);
}

.brand-mark__text {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: var(--step-22);
  letter-spacing: -0.01em;
  color: var(--star-white);
  text-shadow: 0 0 14px rgba(53, 224, 224, 0.35);
}

.primary-nav {
  margin-left: auto;
}

.primary-nav__list {
  display: flex;
  align-items: center;
  gap: clamp(0.6rem, 1.6vw, 1.6rem);
}

.primary-nav__link {
  position: relative;
  display: inline-block;
  padding: 0.55rem 0.1rem;
  font-size: var(--step-14);
  letter-spacing: 0.04em;
  color: var(--mist-gray);
  transition: color 0.2s ease;
}

.primary-nav__link::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0.15rem;
  height: 2px;
  background: var(--aurora-cyan);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 0.28s cubic-bezier(0.2, 0.7, 0.3, 1);
}

.primary-nav__link:hover,
.primary-nav__link:focus-visible {
  color: var(--star-white);
}

.primary-nav__link:hover::after,
.primary-nav__link:focus-visible::after {
  transform: scaleX(1);
}

.primary-nav__link[aria-current="page"] {
  color: var(--star-white);
  font-weight: 600;
}

.primary-nav__link[aria-current="page"]::after {
  transform: scaleX(1);
}

.primary-nav__link[aria-current="page"]::before {
  content: "";
  position: absolute;
  top: -0.15rem;
  left: 50%;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--aurora-cyan);
  box-shadow: 0 0 10px var(--aurora-cyan);
  transform: translateX(-50%);
}

.nav-extra {
  display: none;
}

.nav-band__cta {
  flex: 0 0 auto;
}

.nav-toggle {
  display: none;
  align-items: center;
  gap: 0.55rem;
  padding: 0.5rem 0.8rem;
  border: 1.5px solid var(--line-purple);
  border-radius: var(--radius);
  color: var(--star-white);
  font-size: var(--step-12);
  letter-spacing: 0.1em;
  transition: border-color 0.2s ease, color 0.2s ease;
}

.nav-toggle:hover {
  border-color: var(--aurora-cyan);
  color: var(--aurora-cyan);
}

.nav-toggle__bars {
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  gap: 4px;
  width: 18px;
  height: 14px;
}

.nav-toggle__bars span {
  display: block;
  height: 1.5px;
  border-radius: 2px;
  background: currentColor;
  transition: transform 0.25s ease, opacity 0.25s ease;
}

.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:nth-child(1) {
  transform: translateY(5.5px) rotate(45deg);
}

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

.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:nth-child(3) {
  transform: translateY(-5.5px) rotate(-45deg);
}

.nav-toggle__label {
  font-weight: 600;
}

/* =========================================================
   按钮
   ========================================================= */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.72rem 1.35rem;
  border: 1.5px solid transparent;
  border-radius: var(--radius);
  font-size: var(--step-14);
  font-weight: 600;
  letter-spacing: 0.04em;
  line-height: 1.2;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease,
              background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}

.btn--cyan {
  background: var(--aurora-cyan);
  color: var(--on-cyan);
  box-shadow: 5px 5px 0 rgba(107, 75, 214, 0.55);
}

.btn--cyan:hover {
  transform: translate(-2px, -2px);
  box-shadow: 8px 8px 0 rgba(107, 75, 214, 0.72);
}

.btn--cyan:active {
  transform: translate(2px, 2px);
  box-shadow: 2px 2px 0 rgba(107, 75, 214, 0.55);
}

.btn--ghost {
  background: transparent;
  color: var(--star-white);
  border-color: var(--line-purple);
}

.btn--ghost:hover {
  border-color: var(--aurora-cyan);
  color: var(--aurora-cyan);
  background: rgba(53, 224, 224, 0.08);
}

/* =========================================================
   fudi 页脚
   ========================================================= */
.site-footer {
  position: relative;
  margin-top: clamp(3rem, 8vw, 6rem);
  background: linear-gradient(180deg, var(--deep-space), #03040A);
  border-top: 1.5px solid var(--line-purple);
  color: var(--mist-gray);
}

.footer-orbit {
  padding-top: 1.5rem;
  color: rgba(107, 75, 214, 0.55);
}

.footer-orbit svg {
  width: 100%;
  height: 18px;
}

.footer-orbit path {
  fill: none;
  stroke: currentColor;
  stroke-width: 1.5;
  stroke-dasharray: 6 10;
  animation: orbit-flow 26s linear infinite;
}

@keyframes orbit-flow {
  to { stroke-dashoffset: -160; }
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.5fr;
  gap: clamp(1.5rem, 4vw, 3.5rem);
  padding-block: clamp(2.5rem, 6vw, 4.5rem) 2rem;
}

.footer-col {
  min-width: 0;
}

.footer-brand {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: var(--step-28);
  letter-spacing: -0.01em;
  color: var(--star-white);
  text-shadow: 0 0 18px rgba(107, 75, 214, 0.5);
  margin-bottom: 0.9rem;
}

.footer-meta {
  font-size: var(--step-14);
  margin-bottom: 0.45rem;
  color: var(--mist-gray);
}

.footer-meta--gold {
  font-family: var(--font-mono);
  letter-spacing: 0.08em;
  color: var(--dark-gold);
}

.footer-col__title {
  font-family: var(--font-body);
  font-size: var(--step-12);
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--star-white);
  padding-bottom: 0.6rem;
  margin-bottom: 1.1rem;
  border-bottom: 1px solid var(--line-soft);
}

.footer-list {
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
}

.footer-list__link {
  position: relative;
  display: inline-block;
  font-size: var(--step-14);
  color: var(--mist-gray);
  transition: color 0.2s ease, padding-left 0.2s ease;
}

.footer-list__link:hover,
.footer-list__link:focus-visible {
  color: var(--aurora-cyan);
  padding-left: 0.35rem;
}

.footer-contact {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.footer-contact__label {
  font-family: var(--font-mono);
  font-size: var(--step-12);
  letter-spacing: 0.12em;
  color: var(--dark-gold);
}

.footer-contact__value {
  font-size: var(--step-14);
  line-height: 1.7;
  color: var(--mist-gray);
  word-break: break-word;
}

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding-block: 1.25rem;
  border-top: 1px solid var(--line-soft);
  font-size: var(--step-12);
  letter-spacing: 0.06em;
}

.footer-bottom__copy {
  color: rgba(168, 176, 200, 0.8);
}

.to-top {
  position: fixed;
  right: clamp(1rem, 3vw, 2rem);
  bottom: clamp(1rem, 3vw, 2rem);
  z-index: 140;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.45rem 1rem;
  border: 1px solid var(--line-soft);
  border-radius: 999px;
  background: rgba(11, 18, 38, 0.9);
  color: var(--mist-gray);
  font-size: var(--step-12);
  letter-spacing: 0.1em;
  opacity: 0;
  visibility: hidden;
  transform: translateY(6px);
  transition: opacity 0.25s ease, transform 0.25s ease,
              visibility 0.25s ease, color 0.2s ease, border-color 0.2s ease;
}

.to-top[data-visible="true"] {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.to-top:hover {
  color: var(--aurora-cyan);
  border-color: var(--aurora-cyan);
}

/* =========================================================
   通用区块与组件
   ========================================================= */
.section {
  padding-block: clamp(3rem, 8vw, 6rem);
}

.section--navy {
  background: var(--nebula-navy);
  border-block: 1.5px solid var(--line-purple);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  margin-bottom: 1rem;
  font-family: var(--font-mono);
  font-size: var(--step-12);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--mist-gray);
}

.eyebrow::before {
  content: "";
  display: inline-block;
  width: 22px;
  height: 1.5px;
  background: var(--dark-gold);
}

.section-title {
  font-size: clamp(1.75rem, 4vw, 3.5rem);
  text-shadow: 0 0 22px rgba(53, 224, 224, 0.18);
}

.section-sub {
  margin-top: 1rem;
  max-width: 60ch;
  font-size: var(--step-18);
  color: var(--mist-gray);
}

.lede {
  max-width: 68ch;
  font-size: var(--step-18);
  line-height: 1.9;
  color: var(--mist-gray);
}

.divider {
  height: 1.5px;
  border: 0;
  background: linear-gradient(90deg, transparent, var(--galaxy-purple) 18%,
              var(--aurora-cyan) 50%, var(--galaxy-purple) 82%, transparent);
  opacity: 0.6;
}

/* --- 网格 --- */
.grid {
  display: grid;
  gap: clamp(1.25rem, 3vw, 2.25rem);
}

.grid--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }

.grid--editorial {
  grid-template-columns: minmax(0, 3fr) minmax(0, 7fr) minmax(0, 2fr);
}

/* --- 卡片 --- */
.card {
  position: relative;
  padding: clamp(1.25rem, 3vw, 2rem);
  background: var(--orbit-slate);
  border: 1.5px solid var(--line-purple);
  border-radius: var(--radius);
  transition: transform 0.28s ease, box-shadow 0.28s ease, border-color 0.28s ease;
}

.card:hover {
  transform: translateY(-4px);
  border-color: var(--aurora-cyan);
  box-shadow: var(--shadow-hard);
}

.card__head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 0.9rem;
}

.card__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--step-22);
  line-height: 1.35;
  color: var(--star-white);
}

.card__text {
  font-size: var(--step-16);
  color: var(--mist-gray);
}

.card__meta {
  font-family: var(--font-mono);
  font-size: var(--step-12);
  letter-spacing: 0.08em;
  color: var(--dark-gold);
  white-space: nowrap;
}

/* --- 数字卡 --- */
.stat-card {
  padding: 1.5rem;
  background: linear-gradient(150deg, rgba(107, 75, 214, 0.22), rgba(11, 18, 38, 0.92));
  border: 1.5px solid var(--line-purple);
  border-radius: var(--radius);
}

.stat-card__value {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(2rem, 5vw, 3.25rem);
  line-height: 1;
  letter-spacing: 0.02em;
  color: var(--aurora-cyan);
  text-shadow: 0 0 20px rgba(53, 224, 224, 0.35);
}

.stat-card__label {
  margin-top: 0.6rem;
  font-family: var(--font-mono);
  font-size: var(--step-12);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--mist-gray);
}

/* --- 标签 --- */
.tag {
  display: inline-flex;
  align-items: center;
  padding: 0.28rem 0.7rem;
  border: 1px solid rgba(107, 75, 214, 0.6);
  border-radius: 999px;
  background: rgba(107, 75, 214, 0.12);
  font-size: var(--step-12);
  letter-spacing: 0.08em;
  color: var(--mist-gray);
}

.tag--gold {
  border-color: rgba(201, 162, 75, 0.6);
  background: rgba(201, 162, 75, 0.1);
  color: var(--dark-gold);
}

.tag--cyan {
  border-color: rgba(53, 224, 224, 0.6);
  background: rgba(53, 224, 224, 0.1);
  color: var(--aurora-cyan);
}

/* --- 面包屑 --- */
.breadcrumbs {
  padding-block: 1.25rem;
  font-size: var(--step-12);
  letter-spacing: 0.06em;
  color: var(--mist-gray);
}

.breadcrumbs__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
}

.breadcrumbs__link {
  color: var(--mist-gray);
  transition: color 0.2s ease;
}

.breadcrumbs__link:hover,
.breadcrumbs__link:focus-visible {
  color: var(--aurora-cyan);
}

.breadcrumbs__sep {
  color: rgba(168, 176, 200, 0.5);
}

.breadcrumbs__current {
  color: var(--star-white);
}

/* --- 折叠面板 --- */
.panel {
  background: var(--orbit-slate);
  border: 1.5px solid var(--line-purple);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color 0.25s ease;
}

.panel + .panel {
  margin-top: 0.9rem;
}

.panel[data-open="true"] {
  border-color: rgba(53, 224, 224, 0.55);
}

.panel__trigger {
  display: flex;
  width: 100%;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.15rem 1.35rem;
  text-align: left;
  font-size: var(--step-16);
  font-weight: 600;
  color: var(--star-white);
  transition: background-color 0.2s ease;
}

.panel__trigger:hover {
  background: rgba(107, 75, 214, 0.16);
}

.panel__trigger::after {
  content: "";
  flex: 0 0 auto;
  width: 10px;
  height: 10px;
  border-right: 2px solid var(--aurora-cyan);
  border-bottom: 2px solid var(--aurora-cyan);
  transform: rotate(45deg);
  transition: transform 0.25s ease;
}

.panel[data-open="true"] .panel__trigger::after {
  transform: rotate(-135deg);
}

.panel__body {
  max-height: 0;
  overflow: hidden;
  padding: 0 1.35rem;
  color: var(--mist-gray);
  transition: max-height 0.3s ease, padding 0.3s ease;
}

.panel[data-open="true"] .panel__body {
  max-height: 60rem;
  padding: 0 1.35rem 1.35rem;
}

/* --- 图片容器 --- */
.media-frame {
  position: relative;
  overflow: hidden;
  border: 1.5px solid var(--line-purple);
  border-radius: var(--radius);
  background: linear-gradient(150deg, var(--nebula-navy), var(--orbit-slate));
}

.media-frame__inner {
  display: block;
  aspect-ratio: 16 / 9;
}

.media-frame--4x3 .media-frame__inner { aspect-ratio: 4 / 3; }
.media-frame--square .media-frame__inner { aspect-ratio: 1 / 1; }
.media-frame--16x9 .media-frame__inner { aspect-ratio: 16 / 9; }

.media-frame__inner > img,
.media-frame__inner > svg {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.media-frame__caption {
  padding: 0.85rem 1.1rem;
  border-top: 1px solid var(--line-soft);
  background: rgba(5, 7, 15, 0.7);
  font-size: var(--step-12);
  letter-spacing: 0.06em;
  color: var(--mist-gray);
}

/* --- 长文 --- */
.prose {
  max-width: 68ch;
  font-size: var(--step-16);
  line-height: 1.9;
  color: var(--mist-gray);
}

.prose > * + * {
  margin-top: 1.5em;
}

.prose h2 {
  font-family: var(--font-display);
  font-size: var(--step-28);
  line-height: 1.3;
  color: var(--star-white);
}

.prose h3 {
  font-family: var(--font-display);
  font-size: var(--step-22);
  color: var(--star-white);
}

.prose strong {
  color: var(--star-white);
}

.prose a {
  color: var(--aurora-cyan);
  border-bottom: 1px solid rgba(53, 224, 224, 0.4);
}

/* --- 进场显现 --- */
.js [data-reveal] {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 0.35s ease, transform 0.35s ease;
}

.js [data-reveal].is-visible {
  opacity: 1;
  transform: none;
}

/* =========================================================
   响应式
   ========================================================= */
@media (max-width: 1080px) {
  .grid--3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .grid--editorial { grid-template-columns: minmax(0, 1fr) minmax(0, 2.4fr); }
}

@media (max-width: 960px) {
  .nav-toggle { display: inline-flex; margin-left: auto; }
  .nav-band__cta { display: none; }

  .primary-nav {
    position: fixed;
    inset: 0;
    z-index: 120;
    margin: 0;
    padding: 5.5rem var(--gutter) 3rem;
    overflow-y: auto;
    background:
      radial-gradient(circle at 82% 0%, rgba(107, 75, 214, 0.38), transparent 58%),
      linear-gradient(180deg, #0B1226, #05070F 72%);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: opacity 0.26s ease, transform 0.26s ease, visibility 0.26s ease;
  }

  .primary-nav[data-open="true"] {
    opacity: 1;
    visibility: visible;
    transform: none;
  }

  .primary-nav__list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
  }

  .primary-nav__link {
    display: block;
    padding: 1.05rem 0.2rem;
    border-bottom: 1px solid var(--line-soft);
    font-family: var(--font-display);
    font-size: var(--step-22);
    font-weight: 700;
    color: var(--star-white);
  }

  .primary-nav__link::after {
    left: 0.2rem;
    right: auto;
    bottom: 0.85rem;
    width: 26px;
  }

  .primary-nav__link[aria-current="page"]::before {
    top: 50%;
    left: auto;
    right: 0;
    transform: translateY(-50%);
  }

  .nav-extra {
    display: block;
    margin-top: 2rem;
  }

  .nav-extra__label {
    margin-bottom: 0.9rem;
    font-family: var(--font-mono);
    font-size: var(--step-12);
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--mist-gray);
  }

  .cat-matrix {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
  }

  .cat-matrix__item {
    display: inline-block;
    padding: 0.3rem 0.8rem;
    border: 1px solid rgba(107, 75, 214, 0.5);
    border-radius: 999px;
    background: rgba(107, 75, 214, 0.12);
    font-size: var(--step-12);
    letter-spacing: 0.06em;
    color: var(--mist-gray);
  }

  .nav-extra__cta {
    margin-top: 1.75rem;
    width: 100%;
  }

  body.is-locked {
    overflow: hidden;
  }
}

@media (max-width: 900px) {
  .footer-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 760px) {
  .brand-band__inner {
    flex-wrap: wrap;
    row-gap: 0.5rem;
  }

  .brand-band__ticker,
  .brand-band__hours {
    display: none;
  }

  .info-toggle {
    display: inline-flex;
  }

  .brand-band[data-open="true"] .brand-band__ticker {
    display: block;
    flex-basis: 100%;
    order: 3;
  }

  .brand-band[data-open="true"] .brand-band__hours {
    display: block;
    flex-basis: 100%;
    order: 4;
  }
}

@media (max-width: 640px) {
  .grid--2,
  .grid--3,
  .grid--editorial {
    grid-template-columns: minmax(0, 1fr);
  }

  .brand-mark__text { font-size: var(--step-18); }
  .nav-band__inner { min-height: 64px; }
}

@media (max-width: 560px) {
  .footer-grid {
    grid-template-columns: minmax(0, 1fr);
    padding-block: 2.5rem 1.5rem;
  }

  .to-top {
    right: 1rem;
    bottom: 1rem;
  }
}

/* =========================================================
   动效偏好
   ========================================================= */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }

  body::before { animation: none; }

  .ticker__track {
    animation: none;
    flex-wrap: wrap;
    width: auto;
    white-space: normal;
  }

  .footer-orbit path { animation: none; }

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

  .card:hover,
  .btn--cyan:hover,
  .btn--cyan:active {
    transform: none;
  }
}