/* ========== B体育竞界 · 共享样式 /assets/site.css ========== */

/* ---------- 设计变量 ---------- */
:root {
  --space-deep: #0A1128;
  --space-card: #1B2A4A;
  --space-ink: #0F1B33;
  --neon: #00E676;
  --flame: #FF6A00;
  --gold: #FFD600;
  --bolt: #9C27B0;
  --steel: #4FC3F7;
  --mist: #B0BEC5;
  --paper: #FFFFFF;

  --font-display: "Montserrat", "Noto Sans SC", "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  --font-body: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;

  --content-max: 1200px;
  --gutter: clamp(16px, 4vw, 24px);
  --section-pad: clamp(48px, 8vw, 96px);
  --grid-gap: 24px;
  --line: 2px;
  --line-thick: 3px;
  --shadow-hard: 7px 7px 0 rgba(0, 0, 0, 0.35);
  --shadow-soft: 0 14px 40px rgba(0, 0, 0, 0.4);
}

/* ---------- Reset ---------- */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  background: var(--space-deep);
}

body {
  min-height: 100vh;
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.7;
  color: var(--paper);
  background:
    linear-gradient(rgba(79, 195, 247, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(79, 195, 247, 0.035) 1px, transparent 1px),
    var(--space-deep);
  background-size: 44px 44px;
  -webkit-font-smoothing: antialiased;
  animation: body-in 0.4s ease-out both;
}

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

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

ul,
ol {
  list-style: none;
}

a {
  color: var(--steel);
  text-decoration: none;
}

a:hover {
  color: var(--bolt);
}

/* ---------- 中文排版 ---------- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 900;
  line-height: 1.16;
  letter-spacing: -0.02em;
  color: var(--paper);
  text-wrap: balance;
}

h1 { font-size: clamp(2rem, 5vw, 4rem); }
h2 { font-size: clamp(1.55rem, 3.4vw, 2.7rem); }
h3 { font-size: clamp(1.2rem, 2.2vw, 1.6rem); }
h4 { font-size: 1.08rem; letter-spacing: 0.01em; }

p { margin-bottom: 1em; }
strong, b { font-weight: 700; }

#main-content {
  min-height: 70vh;
  outline: none;
}

#main-content:focus {
  box-shadow: none;
}

/* ---------- 布局骨架 ---------- */
.container {
  width: 100%;
  max-width: var(--content-max);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.section {
  padding-block: var(--section-pad);
}

.section--card {
  background: var(--space-card);
}

.section--ink {
  background: var(--space-ink);
}

.section--line {
  border-top: var(--line-thick) solid rgba(0, 230, 118, 0.32);
  border-bottom: var(--line-thick) solid rgba(255, 106, 0, 0.32);
}

.section__head {
  display: flex;
  flex-wrap: wrap;
  align-items: end;
  justify-content: space-between;
  gap: 14px 24px;
  margin-bottom: 36px;
}

.section__eyebrow {
  display: inline-block;
  margin-bottom: 8px;
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--flame);
}

.section__title {
  margin: 0;
}

.section__lede {
  max-width: 62ch;
  margin: 0;
  color: var(--mist);
}

.page-heading {
  padding-block: clamp(34px, 6vw, 72px);
  border-bottom: var(--line-thick) solid rgba(0, 230, 118, 0.35);
  background: linear-gradient(180deg, rgba(27, 42, 74, 0.65) 0%, rgba(10, 17, 40, 0) 100%);
}

.page-heading__eyebrow {
  display: inline-block;
  margin-bottom: 14px;
  padding: 5px 12px;
  border: 1px solid var(--neon);
  background: rgba(0, 230, 118, 0.08);
  color: var(--neon);
  font-family: var(--font-display);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.2em;
  text-transform: uppercase;
}

.page-heading__title {
  margin: 0 0 10px;
}

.page-heading__lede {
  max-width: 64ch;
  margin: 0;
  color: var(--mist);
  font-size: 1.0625rem;
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  padding-block: 18px 0;
  font-size: 0.8rem;
}

.breadcrumb__item {
  display: inline-flex;
  align-items: center;
  color: var(--mist);
}

.breadcrumb__item + .breadcrumb__item::before {
  content: "/";
  margin-right: 6px;
  color: rgba(176, 190, 197, 0.5);
}

.breadcrumb__link {
  color: var(--mist);
}

.breadcrumb__link:hover {
  color: var(--neon);
}

.breadcrumb__current {
  color: var(--paper);
  font-weight: 600;
}

.grid {
  display: grid;
  gap: var(--grid-gap);
}

.grid--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid--4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }

/* ---------- 通用组件 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 22px;
  border: 2px solid var(--space-deep);
  border-radius: 0;
  background: var(--neon);
  color: var(--space-deep);
  box-shadow: var(--shadow-hard);
  font-family: var(--font-display);
  font-size: 0.88rem;
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: 0.04em;
  text-align: center;
  text-decoration: none;
  cursor: pointer;
  transition: transform 0.16s ease, box-shadow 0.16s ease, background 0.16s ease, color 0.16s ease;
}

.btn:hover,
.btn:focus-visible {
  transform: translate(3px, 3px);
  box-shadow: 3px 3px 0 rgba(0, 0, 0, 0.35);
  color: var(--space-deep);
}

.btn--flame {
  background: var(--flame);
}

.btn--steel {
  background: var(--steel);
}

.btn--ghost {
  background: transparent;
  color: var(--paper);
  border-color: rgba(255, 255, 255, 0.7);
  box-shadow: none;
}

.btn--ghost:hover {
  background: rgba(255, 255, 255, 0.08);
  color: var(--paper);
}

.btn--sm {
  padding: 8px 14px;
  font-size: 0.8rem;
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border: 1px solid var(--neon);
  background: rgba(0, 230, 118, 0.08);
  color: var(--neon);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  line-height: 1.4;
  text-transform: uppercase;
  white-space: nowrap;
}

.tag--flame { border-color: var(--flame); background: rgba(255, 106, 0, 0.1); color: var(--flame); }
.tag--steel { border-color: var(--steel); background: rgba(79, 195, 247, 0.1); color: var(--steel); }
.tag--gold  { border-color: var(--gold); background: rgba(255, 214, 0, 0.1); color: var(--gold); }
.tag--bolt  { border-color: var(--bolt); background: rgba(156, 39, 176, 0.12); color: #CE93D8; }

.notice {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 14px 18px;
  background: rgba(255, 214, 0, 0.1);
  border: 2px solid var(--gold);
  color: var(--paper);
  font-size: 0.9rem;
}

.notice::before {
  content: "!";
  flex-shrink: 0;
  display: grid;
  place-items: center;
  width: 24px;
  height: 24px;
  background: var(--gold);
  color: var(--space-deep);
  font-family: var(--font-display);
  font-weight: 900;
  border-radius: 50%;
}

.panel {
  background: var(--space-card);
  border: 2px solid rgba(176, 190, 197, 0.22);
  border-radius: 0;
  box-shadow: var(--shadow-hard);
  padding: 26px;
}

.panel--ink {
  background: var(--space-ink);
}

.panel--pad-lg {
  padding: clamp(20px, 4vw, 40px);
}

.panel__title {
  font-size: 1.2rem;
  margin-bottom: 12px;
}

.panel__body {
  color: var(--mist);
  font-size: 0.95rem;
}

.plate {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 6px 12px;
  padding: 10px 14px;
  background: var(--space-ink);
  border-left: 3px solid var(--neon);
  color: var(--mist);
  font-size: 0.82rem;
}

.plate__title {
  font-weight: 700;
  color: var(--paper);
}

.plate__meta {
  margin-left: auto;
  color: var(--flame);
  font-family: var(--font-display);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
}

.media-frame {
  position: relative;
  display: block;
  overflow: hidden;
  background: linear-gradient(135deg, var(--space-card), var(--space-ink));
  border: 2px solid rgba(176, 190, 197, 0.22);
}

.media-frame--169 { aspect-ratio: 16 / 9; }
.media-frame--43 { aspect-ratio: 4 / 3; }
.media-frame--ground { aspect-ratio: 21 / 9; }

.media-frame img,
.media-frame > picture img,
.media-frame > video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.media-frame::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(102deg, transparent 32%, rgba(0, 230, 118, 0.12) 50%, transparent 62%);
  pointer-events: none;
  opacity: 0.5;
}

.media-frame:hover {
  border-color: rgba(0, 230, 118, 0.6);
  box-shadow: 0 0 28px rgba(0, 230, 118, 0.14);
}

.media-frame figcaption,
.media-frame__caption {
  position: absolute;
  left: 0;
  bottom: 0;
  max-width: 100%;
  margin: 0;
  padding: 6px 12px;
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  color: var(--mist);
  background: rgba(10, 17, 40, 0.85);
  border-top: 1px solid rgba(0, 230, 118, 0.4);
  z-index: 1;
}

.map-index {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(230px, 1fr));
  gap: 14px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.map-index__item a {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px 18px;
  background: var(--space-card);
  border: 2px solid var(--space-card);
  box-shadow: 5px 5px 0 rgba(0, 0, 0, 0.3);
  color: var(--paper);
  text-decoration: none;
  transition: border-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
}

.map-index__item a:hover {
  border-color: var(--neon);
  transform: translate(2px, 2px);
  box-shadow: 2px 2px 0 rgba(0, 0, 0, 0.3);
}

.map-index__num {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 900;
  line-height: 1;
  color: var(--flame);
}

.map-index__text {
  font-weight: 600;
  font-size: 0.94rem;
}

.split-layout {
  display: grid;
  grid-template-columns: 5fr 6fr;
  gap: clamp(28px, 5vw, 64px);
  align-items: center;
}

.rich-text {
  color: var(--mist);
  font-size: 1.0625rem;
}

.rich-text p {
  margin-bottom: 1.25em;
}

.rich-text h2,
.rich-text h3,
.rich-text h4 {
  margin-top: 1.5em;
  color: var(--paper);
}

.rich-text ul,
.rich-text ol {
  margin: 0 0 1.25em;
  padding-left: 1.5em;
}

.rich-text ul { list-style: disc; }
.rich-text ol { list-style: decimal; }
.rich-text li { margin-bottom: 0.4em; }

.rich-text a {
  color: var(--neon);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.rich-text a:hover {
  color: var(--bolt);
}

.rich-text blockquote {
  margin: 1.5em 0;
  padding: 14px 18px;
  border-left: 4px solid var(--flame);
  background: var(--space-card);
  color: var(--paper);
}

/* ---------- 跳转与滚动进度 ---------- */
.skip-link {
  position: absolute;
  top: -120px;
  left: 16px;
  z-index: 300;
  padding: 10px 18px;
  background: var(--neon);
  color: var(--space-deep);
  border: 3px solid var(--space-deep);
  box-shadow: 4px 4px 0 rgba(0, 0, 0, 0.4);
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 0.85rem;
  letter-spacing: 0.06em;
  text-decoration: none;
  transition: top 0.2s ease;
}

.skip-link:focus {
  top: 12px;
}

.progress-track {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  z-index: 400;
  pointer-events: none;
}

.progress-bar {
  display: block;
  width: 0%;
  height: 100%;
  background: linear-gradient(90deg, var(--neon), var(--flame));
  box-shadow: 0 0 10px rgba(0, 230, 118, 0.75);
}

/* ---------- 头部 ---------- */
.site-header {
  position: relative;
  z-index: 100;
  background: var(--space-deep);
}

.topbar {
  position: relative;
  background:
    repeating-linear-gradient(135deg, rgba(0, 230, 118, 0.04) 0 6px, transparent 6px 14px),
    var(--space-card);
  border-bottom: 1px solid rgba(176, 190, 197, 0.24);
  font-size: 0.78rem;
  line-height: 1.4;
}

.topbar__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 38px;
}

.topbar__tagline {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0;
  color: var(--mist);
}

.live-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--neon);
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 0.68rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.live-tag__dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--neon);
  box-shadow: 0 0 8px rgba(0, 230, 118, 0.8);
  font-style: normal;
  animation: live-pulse 1.6s ease-in-out infinite;
}

.topbar__slogan {
  letter-spacing: 0.04em;
}

.topbar__meta {
  display: inline-flex;
  align-items: center;
  gap: 18px;
}

.topbar__phone,
.topbar__hours {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--mist);
  letter-spacing: 0.05em;
}

.topbar__phone::before,
.topbar__hours::before {
  content: "";
  width: 6px;
  height: 6px;
  background: var(--neon);
}

.topbar__phone {
  font-family: var(--font-display);
  font-weight: 700;
  color: var(--paper);
}

.topbar__hours::before {
  background: var(--flame);
}

.navbar {
  position: sticky;
  top: 0;
  z-index: 90;
  background: linear-gradient(90deg, var(--space-ink) 0%, var(--space-deep) 50%, var(--space-card) 100%);
  border-bottom: var(--line-thick) solid var(--neon);
  box-shadow: 0 10px 28px rgba(0, 0, 0, 0.4);
  overflow: visible;
}

.navbar::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 30%;
  height: 100%;
  background: linear-gradient(100deg, transparent, rgba(255, 255, 255, 0.05), transparent);
  transform: translateX(-120%) skewX(-8deg);
  animation: header-sweep 0.9s ease-out 0.2s both;
  pointer-events: none;
}

.navbar__inner {
  display: flex;
  align-items: center;
  gap: 18px;
  min-height: 78px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
  text-decoration: none;
}

.brand__mark {
  display: grid;
  place-items: center;
  width: 48px;
  height: 48px;
  background: var(--neon);
  color: var(--space-deep);
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 1.35rem;
  line-height: 1;
  clip-path: polygon(0 0, 100% 0, 100% 68%, 70% 100%, 0 100%);
  box-shadow: 0 0 18px rgba(0, 230, 118, 0.4);
  transition: background 0.2s ease, box-shadow 0.2s ease;
}

.brand:hover .brand__mark {
  background: var(--flame);
  box-shadow: 0 0 18px rgba(255, 106, 0, 0.35);
}

.brand__text {
  display: flex;
  flex-direction: column;
  line-height: 1.12;
}

.brand__text strong {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 1.32rem;
  letter-spacing: 0.04em;
  color: var(--paper);
}

.brand__text em {
  margin-top: 3px;
  font-style: normal;
  font-family: var(--font-display);
  font-size: 0.64rem;
  font-weight: 700;
  letter-spacing: 0.3em;
  color: var(--mist);
  text-transform: uppercase;
}

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

.nav-list {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-list__item {
  position: relative;
}

.nav-link {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 12px 13px;
  font-family: var(--font-display);
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--paper);
  text-decoration: none;
  transition: color 0.2s ease, background 0.2s ease;
}

.nav-link::after {
  content: "";
  position: absolute;
  left: 13px;
  right: 13px;
  bottom: 0;
  height: 3px;
  background: var(--neon);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 0.22s ease;
}

.nav-link:hover,
.nav-link[aria-current="page"] {
  color: var(--neon);
  background: rgba(0, 230, 118, 0.08);
}

.nav-link:hover::after,
.nav-link[aria-current="page"]::after {
  transform: scaleX(1);
}

.nav-link__num {
  font-size: 0.62rem;
  font-weight: 900;
  letter-spacing: 0.05em;
  line-height: 1;
  color: var(--flame);
}

.navbar__cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 18px;
  background: var(--flame);
  color: var(--space-deep);
  border: 2px solid var(--space-deep);
  box-shadow: 5px 5px 0 rgba(0, 0, 0, 0.4);
  font-family: var(--font-display);
  font-size: 0.86rem;
  font-weight: 800;
  letter-spacing: 0.05em;
  text-decoration: none;
  white-space: nowrap;
  transition: transform 0.16s ease, box-shadow 0.16s ease, background 0.16s ease;
}

.navbar__cta:hover {
  transform: translate(2px, 2px);
  box-shadow: 2px 2px 0 rgba(0, 0, 0, 0.4);
  background: var(--neon);
  color: var(--space-deep);
}

.nav-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-left: auto;
  padding: 0 14px;
  height: 46px;
  background: transparent;
  border: 2px solid var(--neon);
  border-radius: 0;
  color: var(--neon);
  font-family: var(--font-display);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  cursor: pointer;
  transition: background 0.2s ease, color 0.2s ease;
}

.nav-toggle:hover {
  background: rgba(0, 230, 118, 0.1);
}

.nav-toggle[data-open] {
  background: var(--neon);
  color: var(--space-deep);
}

.nav-toggle__box {
  position: relative;
  display: block;
  width: 20px;
  height: 2px;
  background: currentColor;
}

.nav-toggle__box::before,
.nav-toggle__box::after {
  content: "";
  position: absolute;
  left: 0;
  width: 100%;
  height: 2px;
  background: currentColor;
  transition: transform 0.2s ease, top 0.2s ease;
}

.nav-toggle__box::before { top: -6px; }
.nav-toggle__box::after { top: 6px; }

.nav-toggle[data-open] .nav-toggle__box {
  background: transparent;
}

.nav-toggle[data-open] .nav-toggle__box::before {
  top: 0;
  transform: rotate(45deg);
}

.nav-toggle[data-open] .nav-toggle__box::after {
  top: 0;
  transform: rotate(-45deg);
}

.nav-toggle__label {
  font-size: inherit;
  letter-spacing: inherit;
}

/* ---------- 页脚 ---------- */
.site-footer {
  position: relative;
  background: var(--space-ink);
  border-top: 4px solid var(--flame);
}

.footer-band {
  background:
    linear-gradient(90deg, rgba(0, 230, 118, 0.1), transparent 45%),
    var(--space-card);
  border-bottom: 2px solid rgba(79, 195, 247, 0.24);
}

.footer-band__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px 22px;
  padding-block: 16px;
}

.footer-band__label {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 1.02rem;
  letter-spacing: 0.24em;
  color: var(--neon);
}

.footer-band__ticker {
  margin: 0;
  font-size: 0.84rem;
  letter-spacing: 0.12em;
  color: var(--mist);
}

.footer-band__inner .btn {
  margin-left: auto;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 0.8fr 0.9fr 1.2fr;
  gap: clamp(24px, 4vw, 48px);
  padding-block: 54px 38px;
}

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

.brand--footer {
  margin-bottom: 16px;
}

.footer-brand-col__desc {
  margin: 0 0 14px;
  color: var(--mist);
  font-size: 0.92rem;
  line-height: 1.8;
}

.footer-trust {
  margin: 0;
  padding: 10px 14px;
  background: rgba(79, 195, 247, 0.06);
  border-left: 3px solid var(--steel);
  color: var(--mist);
  font-size: 0.76rem;
  line-height: 1.65;
}

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

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

.footer-col__title {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 18px;
  font-family: var(--font-display);
  font-size: 0.9rem;
  font-weight: 800;
  letter-spacing: 0.16em;
  color: var(--paper);
  text-transform: uppercase;
}

.footer-col__title::before {
  content: "";
  width: 16px;
  height: 4px;
  background: var(--flame);
  flex-shrink: 0;
}

.footer-links {
  margin: 0;
  padding: 0;
  list-style: none;
}

.footer-links li {
  margin-bottom: 9px;
}

.footer-links a {
  position: relative;
  display: inline-block;
  color: var(--mist);
  font-size: 0.9rem;
  text-decoration: none;
  transition: color 0.2s ease, padding-left 0.2s ease;
}

.footer-links a::before {
  content: "→";
  position: absolute;
  left: 0;
  opacity: 0;
  color: var(--neon);
  transition: opacity 0.2s ease, left 0.2s ease;
}

.footer-links a:hover,
.footer-links a:focus-visible {
  color: var(--neon);
  padding-left: 18px;
}

.footer-links a:hover::before,
.footer-links a:focus-visible::before {
  opacity: 1;
  left: 2px;
}

.footer-support__note {
  margin-top: 16px;
  font-size: 0.8rem;
  line-height: 1.8;
  color: var(--mist);
}

.footer-contact__line {
  display: flex;
  gap: 10px;
  margin: 0 0 10px;
  font-size: 0.88rem;
  line-height: 1.7;
  color: var(--mist);
}

.footer-contact__label {
  flex-shrink: 0;
  min-width: 40px;
  font-weight: 700;
  color: var(--steel);
  letter-spacing: 0.06em;
}

.footer-contact__line--addr {
  line-height: 1.8;
}

.footer-mark {
  margin: 0;
  padding-bottom: 10px;
  font-family: var(--font-display);
  font-size: clamp(2.6rem, 8.5vw, 7rem);
  font-weight: 900;
  line-height: 1;
  letter-spacing: 0.1em;
  text-align: center;
  text-transform: uppercase;
  color: transparent;
  -webkit-text-stroke: 1px rgba(176, 190, 197, 0.15);
  user-select: none;
  pointer-events: none;
  overflow: hidden;
  white-space: nowrap;
}

.footer-bottom {
  margin-top: 10px;
  background: var(--space-deep);
  border-top: 2px solid rgba(176, 190, 197, 0.18);
}

.footer-bottom__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 6px 18px;
  padding-block: 16px;
  font-size: 0.78rem;
  color: var(--mist);
}

.footer-bottom__copy,
.footer-bottom__icp,
.footer-bottom__domain {
  margin: 0;
}

.footer-bottom__copy {
  letter-spacing: 0.02em;
}

.footer-bottom__icp {
  font-family: var(--font-display);
  letter-spacing: 0.12em;
}

.footer-bottom__domain {
  letter-spacing: 0.08em;
  opacity: 0.7;
}

/* ---------- 返回顶部 ---------- */
.to-top {
  position: fixed;
  right: clamp(16px, 3vw, 28px);
  bottom: clamp(16px, 3vw, 28px);
  z-index: 120;
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  min-width: 54px;
  padding: 10px 8px;
  background: var(--neon);
  color: var(--space-deep);
  border: 2px solid var(--space-deep);
  box-shadow: 4px 4px 0 rgba(0, 0, 0, 0.35);
  cursor: pointer;
  font-family: var(--font-display);
  font-size: 0.62rem;
  font-weight: 900;
  letter-spacing: 0.14em;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: opacity 0.25s ease, transform 0.25s ease, visibility 0.25s ease;
}

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

.to-top:hover {
  background: var(--flame);
}

.to-top__arrow {
  font-size: 1.1rem;
  line-height: 1;
}

/* ---------- 动效 ---------- */
@keyframes body-in {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes live-pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.45; transform: scale(0.82); }
}

@keyframes nav-drop {
  from { opacity: 0; transform: translateY(-8px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes header-sweep {
  0% { transform: translateX(-120%) skewX(-8deg); }
  100% { transform: translateX(320%) skewX(-8deg); }
}

/* ---------- 响应式 ---------- */
@media (max-width: 1024px) {
  .topbar__hours {
    display: none;
  }

  .nav-link {
    padding-inline: 10px;
    font-size: 0.84rem;
  }

  .navbar__inner {
    gap: 12px;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }

  .split-layout {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .grid--4 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

@media (max-width: 960px) {
  .js .nav-toggle {
    display: inline-flex;
  }

  .js .primary-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    z-index: 80;
    background: var(--space-ink);
    border-bottom: var(--line-thick) solid var(--neon);
    box-shadow: 0 24px 30px rgba(0, 0, 0, 0.5);
  }

  .js .primary-nav[data-open] {
    display: block;
    animation: nav-drop 0.24s ease-out both;
  }

  .primary-nav {
    margin-left: 0;
  }

  .nav-list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
  }

  .nav-link {
    padding: 15px 20px;
    border-top: 1px solid rgba(176, 190, 197, 0.12);
    border-radius: 0;
  }

  .nav-link::after {
    content: none;
  }

  .nav-link[aria-current="page"] {
    border-left: 4px solid var(--neon);
    background: rgba(0, 230, 118, 0.1);
  }

  .navbar__cta {
    display: none;
  }
}

@media (max-width: 640px) {
  :root {
    --grid-gap: 16px;
  }

  .topbar__slogan {
    display: none;
  }

  .topbar__meta {
    gap: 12px;
  }

  .brand__text em {
    letter-spacing: 0.18em;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    padding-block: 40px 28px;
  }

  .footer-band__inner {
    flex-direction: column;
    align-items: flex-start;
  }

  .footer-band__inner .btn {
    margin-left: 0;
  }

  .footer-bottom__inner {
    flex-direction: column;
    align-items: flex-start;
  }

  .footer-bottom__domain {
    display: none;
  }

  .grid--2,
  .grid--3,
  .grid--4 {
    grid-template-columns: 1fr;
  }
}

/* ---------- 焦点与减动效 ---------- */
:focus-visible {
  outline: 3px solid var(--neon);
  outline-offset: 2px;
}

@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;
    scroll-behavior: auto !important;
  }
}