/* ==========================================================================
   今年会赛场 · 共享站点样式 /assets/site.css
   夜场指挥中心：深墨绿场域 + 荧光青数据 + 琥珀橙状态 + 靛紫收尾
   ========================================================================== */

/* ---------- 01. Reset ---------- */
*,
*::before,
*::after { box-sizing: border-box; }

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

body,
h1, h2, h3, h4, h5, h6,
p, figure, blockquote,
dl, dd, ul, ol { margin: 0; }

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

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

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

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

table { border-collapse: collapse; width: 100%; }

/* ---------- 02. Tokens ---------- */
:root {
  --ink-900: #0B1F1A;
  --ink-800: #0E2621;
  --board: #121417;
  --board-2: #191C21;
  --neon: #3BF2D0;
  --neon-dim: rgba(59, 242, 208, 0.13);
  --amber: #FFA23A;
  --amber-dim: rgba(255, 162, 58, 0.13);
  --bone: #F2F0E6;
  --mist: #8FA6A0;
  --wine: #7A2233;
  --indigo: #241C3B;
  --line: rgba(143, 166, 160, 0.22);
  --line-soft: rgba(143, 166, 160, 0.14);
  --line-hard: rgba(143, 166, 160, 0.44);
  --glass: rgba(18, 20, 23, 0.66);
  --font-display: "HarmonyOS Sans SC", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", system-ui, sans-serif;
  --font-body: "PingFang SC", "Hiragino Sans GB", "Noto Sans CJK SC", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
  --font-mono: "SFMono-Regular", "JetBrains Mono", Menlo, Consolas, "Liberation Mono", "Courier New", monospace;
  --wrap: 1240px;
  --gutter: clamp(18px, 4vw, 56px);
  --radius: 3px;
  --ease: cubic-bezier(0.22, 0.8, 0.28, 1);
}

/* ---------- 03. Base ---------- */
body {
  margin: 0;
  min-height: 100vh;
  background-color: var(--ink-900);
  background-image:
    radial-gradient(120% 90% at 8% -10%, rgba(59, 242, 208, 0.08), transparent 58%),
    radial-gradient(90% 70% at 100% 0%, rgba(36, 28, 59, 0.5), transparent 62%);
  background-repeat: no-repeat;
  color: var(--bone);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.75;
  font-weight: 400;
  letter-spacing: 0.01em;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 800;
  line-height: 1.12;
  letter-spacing: -0.015em;
  color: var(--bone);
  text-wrap: balance;
}

h1 { font-size: clamp(38px, 6vw, 72px); letter-spacing: -0.03em; }
h2 { font-size: clamp(27px, 3.6vw, 40px); }
h3 { font-size: clamp(20px, 2.2vw, 24px); }

p { text-wrap: pretty; }

strong { font-weight: 700; color: var(--bone); }

:focus-visible {
  outline: 2px solid var(--neon);
  outline-offset: 3px;
  border-radius: 2px;
}

::selection { background: var(--neon); color: #05130F; }

/* ---------- 04. Layout utilities ---------- */
.wrap {
  width: 100%;
  max-width: var(--wrap);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.tiles {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 260px), 1fr));
  gap: clamp(16px, 2vw, 26px);
}

.band {
  height: 6px;
  width: 100%;
  border-radius: 1px;
  background: var(--band-color, linear-gradient(90deg, var(--neon) 0%, var(--neon) 34%, var(--amber) 34%, var(--amber) 52%, var(--wine) 52%, var(--wine) 76%, var(--indigo) 76%, var(--indigo) 100%));
}

.mono {
  font-family: var(--font-mono);
  font-size: 0.86em;
  letter-spacing: 0.06em;
  font-variant-numeric: tabular-nums;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.2em;
  color: var(--neon);
}

.eyebrow::before {
  content: "";
  display: block;
  width: 26px;
  height: 2px;
  background: currentColor;
}

.lede {
  max-width: 38em;
  font-size: clamp(16px, 1.4vw, 19px);
  line-height: 1.85;
  color: rgba(242, 240, 230, 0.86);
}

/* ---------- 05. Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 13px 26px;
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 700;
  line-height: 1;
  letter-spacing: 0.1em;
  border: 1px solid transparent;
  border-radius: var(--radius);
  transition: background-color 0.22s var(--ease), color 0.22s var(--ease),
              border-color 0.22s var(--ease), transform 0.22s var(--ease);
}

.btn:active { transform: translateY(1px); }

.btn--neon {
  background: var(--neon);
  color: #05130F;
  border-color: var(--neon);
}
.btn--neon:hover { background: #6FF8DE; border-color: #6FF8DE; }

.btn--ghost {
  background: transparent;
  color: var(--bone);
  border-color: var(--line-hard);
}
.btn--ghost:hover { color: var(--neon); border-color: var(--neon); background: var(--neon-dim); }

.btn--amber {
  background: transparent;
  color: var(--amber);
  border-color: rgba(255, 162, 58, 0.5);
}
.btn--amber:hover { background: var(--amber-dim); border-color: var(--amber); }

/* ---------- 06. Glass card / media frame / status chip ---------- */
.glass-card {
  position: relative;
  padding: clamp(18px, 2.4vw, 28px);
  background: var(--glass);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
}

.glass-card::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 3px;
  background: var(--neon);
  opacity: 0.85;
  border-radius: var(--radius) 0 0 var(--radius);
}

.media-frame {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16 / 10;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background:
    linear-gradient(135deg, rgba(59, 242, 208, 0.16), rgba(36, 28, 59, 0.62) 62%, rgba(11, 31, 26, 0.9));
}

.media-frame--wide { aspect-ratio: 21 / 9; }
.media-frame--tall { aspect-ratio: 4 / 5; }

.media-frame::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: 0.34;
  background-image:
    linear-gradient(to right, rgba(59, 242, 208, 0.18) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(59, 242, 208, 0.18) 1px, transparent 1px);
  background-size: 44px 44px;
  mix-blend-mode: screen;
}

.media-frame__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(1.05) contrast(1.04);
}

.status-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 5px 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  white-space: nowrap;
  color: var(--mist);
  background: rgba(143, 166, 160, 0.08);
  border: 1px solid var(--line-hard);
  border-radius: 999px;
}

.status-chip::before {
  content: "";
  flex: none;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
}

.status-chip--amber {
  color: var(--amber);
  background: var(--amber-dim);
  border-color: rgba(255, 162, 58, 0.45);
}
.status-chip--amber::before { animation: chip-pulse 2.6s ease-in-out infinite; }

.status-chip--neon {
  color: var(--neon);
  background: var(--neon-dim);
  border-color: rgba(59, 242, 208, 0.45);
}

@keyframes chip-pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.32; }
}

/* ---------- 07. Skip link ---------- */
.skip-link {
  position: fixed;
  top: 12px;
  left: 50%;
  z-index: 200;
  padding: 11px 20px;
  transform: translate(-50%, -180%);
  background: var(--neon);
  color: #05130F;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.1em;
  border-radius: var(--radius);
  box-shadow: 0 8px 26px rgba(59, 242, 208, 0.28);
  transition: transform 0.28s var(--ease);
}

.skip-link:focus { transform: translate(-50%, 0); }
.skip-link:focus-visible { outline: 2px solid var(--bone); outline-offset: 3px; }

/* ---------- 08. Header ---------- */
.site-header {
  position: relative;
  z-index: 70;
  color: var(--bone);
  background:
    radial-gradient(140% 120% at 50% -40%, rgba(59, 242, 208, 0.12), transparent 62%),
    linear-gradient(180deg, #0B1F1A 0%, #091814 100%);
  border-bottom: 1px solid var(--line);
}

/* 状态轨 */
.header-rail {
  border-bottom: 1px solid var(--line-soft);
  background: rgba(18, 20, 23, 0.6);
}

.header-rail__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  min-height: 42px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--mist);
}

.header-rail__note {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  min-width: 0;
}

.dot {
  display: inline-block;
  flex: none;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--mist);
}

.dot--live {
  background: var(--neon);
  box-shadow: 0 0 10px rgba(59, 242, 208, 0.8);
  animation: dot-pulse 2.6s ease-out infinite;
}

@keyframes dot-pulse {
  0%   { box-shadow: 0 0 0 0 rgba(59, 242, 208, 0.55), 0 0 10px rgba(59, 242, 208, 0.8); }
  70%  { box-shadow: 0 0 0 9px rgba(59, 242, 208, 0), 0 0 10px rgba(59, 242, 208, 0.5); }
  100% { box-shadow: 0 0 0 0 rgba(59, 242, 208, 0), 0 0 10px rgba(59, 242, 208, 0.8); }
}

.header-util {
  display: flex;
  align-items: center;
  gap: 22px;
  flex: none;
}

.header-util__link {
  padding-bottom: 2px;
  color: var(--mist);
  border-bottom: 1px solid transparent;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.header-util__link:hover,
.header-util__link:focus-visible {
  color: var(--neon);
  border-bottom-color: var(--neon);
}

/* 刊头 */
.masthead {
  position: relative;
  padding: clamp(26px, 4vw, 42px) 0 clamp(16px, 2.4vw, 26px);
}

.masthead__inner {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 58px;
}

.masthead__brand {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 9px;
  text-align: center;
}

.masthead__name {
  display: block;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(27px, 4.6vw, 50px);
  line-height: 1;
  letter-spacing: 0.2em;
  text-indent: 0.2em;
  color: var(--bone);
  transition: color 0.24s var(--ease);
}

.masthead__brand:hover .masthead__name,
.masthead__brand:focus-visible .masthead__name { color: var(--neon); }

.masthead__sub {
  display: block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.42em;
  text-indent: 0.42em;
  color: var(--mist);
}

/* 导航按钮 */
.nav-toggle {
  display: none;
  align-items: center;
  gap: 10px;
  border: 1px solid var(--line-hard);
  border-radius: var(--radius);
  color: var(--bone);
  background: rgba(18, 20, 23, 0.82);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
}

.nav-toggle__bars {
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  gap: 4px;
  width: 16px;
}

.nav-toggle__bars i {
  display: block;
  height: 2px;
  width: 100%;
  border-radius: 1px;
  background: currentColor;
  transition: transform 0.3s var(--ease), opacity 0.3s var(--ease);
}

.nav-toggle__text { line-height: 1; }

/* 目录式导航 */
.site-nav {
  position: relative;
  z-index: 80;
  padding-bottom: 16px;
  border-top: 1px solid var(--line-soft);
  background: linear-gradient(180deg, rgba(36, 28, 59, 0.4), rgba(11, 31, 26, 0.08));
}

.site-nav__hint {
  margin-bottom: 12px;
  padding: 12px 0 11px;
  border-bottom: 1px dashed var(--line-soft);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  text-align: center;
  color: var(--mist);
}

.site-nav__list {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 2px;
}

.site-nav__link {
  display: inline-flex;
  align-items: baseline;
  gap: 9px;
  padding: 10px 18px;
  font-size: 15px;
  letter-spacing: 0.08em;
  color: rgba(242, 240, 230, 0.88);
  border-bottom: 2px solid transparent;
  border-radius: var(--radius) var(--radius) 0 0;
  transition: color 0.2s var(--ease), background-color 0.2s var(--ease),
              border-color 0.2s var(--ease);
}

.site-nav__link:hover {
  color: var(--neon);
  background: rgba(59, 242, 208, 0.08);
  border-bottom-color: rgba(59, 242, 208, 0.5);
}

.site-nav__link[aria-current="page"] {
  color: var(--neon);
  background: rgba(59, 242, 208, 0.1);
  border-bottom-color: var(--neon);
}

.site-nav__num {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--mist);
  transition: color 0.2s var(--ease);
}

.site-nav__link:hover .site-nav__num { color: var(--neon); }
.site-nav__link[aria-current="page"] .site-nav__num { color: var(--amber); }

/* 抽屉遮罩与进度条 */
.nav-scrim {
  position: fixed;
  inset: 0;
  z-index: 60;
  opacity: 0;
  visibility: hidden;
  background: rgba(4, 12, 10, 0.74);
  -webkit-backdrop-filter: blur(2px);
  backdrop-filter: blur(2px);
  transition: opacity 0.3s var(--ease), visibility 0.3s var(--ease);
}

.site-header[data-open="true"] .nav-scrim {
  opacity: 1;
  visibility: visible;
}

.scroll-meter {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 130;
  height: 3px;
  transform: scaleX(0);
  transform-origin: 0 50%;
  pointer-events: none;
  background: linear-gradient(90deg, var(--neon), var(--amber));
}

@media (min-width: 901px) {
  .nav-scrim { display: none; }
}

/* ---------- 09. Footer ---------- */
.site-footer {
  position: relative;
  margin-top: clamp(72px, 9vw, 128px);
  color: var(--bone);
  border-top: 1px solid rgba(59, 242, 208, 0.3);
  background:
    radial-gradient(90% 120% at 10% 0%, rgba(59, 242, 208, 0.1), transparent 58%),
    linear-gradient(180deg, #0B1F1A 0%, #181532 58%, #241C3B 100%);
}

.footer-edge {
  height: 6px;
  background: linear-gradient(
    90deg,
    var(--neon) 0%, var(--neon) 18%,
    var(--amber) 18%, var(--amber) 30%,
    var(--wine) 30%, var(--wine) 52%,
    rgba(143, 166, 160, 0.25) 52%, rgba(143, 166, 160, 0.25) 100%
  );
}

.footer-main {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 1.7fr) minmax(0, 1fr);
  gap: clamp(30px, 4vw, 56px);
  padding-block: clamp(44px, 5vw, 68px) clamp(32px, 4vw, 52px);
}

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

.footer-brand__line {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(18px, 2vw, 23px);
  line-height: 1.4;
  letter-spacing: 0.01em;
  color: var(--bone);
}

.footer-brand__note {
  margin-top: 14px;
  max-width: 26em;
  font-size: 14px;
  line-height: 1.75;
  color: var(--mist);
}

.footer-nav {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 26px;
}

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

.footer-col__title,
.footer-contact__title {
  margin-bottom: 12px;
  padding-bottom: 10px;
  border-bottom: 1px solid rgba(143, 166, 160, 0.26);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.18em;
  color: var(--neon);
}

.footer-col__list {
  display: grid;
  gap: 9px;
}

.footer-col__link {
  display: inline-block;
  font-size: 14.5px;
  line-height: 1.6;
  color: rgba(242, 240, 230, 0.82);
  transition: color 0.2s var(--ease);
}

.footer-col__link:hover,
.footer-col__link:focus-visible { color: var(--neon); }

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

.footer-contact__list {
  display: grid;
  gap: 13px;
}

.footer-contact__row {
  display: grid;
  gap: 2px;
}

.footer-contact__row dt {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--mist);
}

.footer-contact__row dd {
  font-size: 14px;
  line-height: 1.6;
  color: var(--bone);
  word-break: break-word;
}

.footer-note {
  padding-block: 16px;
  border-top: 1px solid rgba(143, 166, 160, 0.18);
}

.footer-note__text {
  font-size: 13px;
  line-height: 1.7;
  letter-spacing: 0.02em;
  color: var(--mist);
}

.footer-base {
  padding-block: 18px 30px;
  border-top: 1px solid rgba(143, 166, 160, 0.18);
}

.footer-base__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px 28px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: rgba(143, 166, 160, 0.92);
}

.footer-base__copy { color: rgba(242, 240, 230, 0.7); }

.footer-base__icp {
  padding-left: 28px;
  border-left: 1px solid rgba(143, 166, 160, 0.3);
}

.footer-base__meta { margin-left: auto; }

/* ---------- 10. Motion ---------- */
[data-reveal] {
  transition: opacity 0.66s var(--ease), transform 0.66s var(--ease);
}

html.js-reveal [data-reveal]:not(.is-in) {
  opacity: 0;
  transform: translateY(20px);
}

/* ---------- 11. Responsive ---------- */
@media (max-width: 1024px) {
  .footer-main {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.4fr);
    gap: 34px;
  }
  .footer-brand { grid-column: 1 / -1; }
  .footer-contact { grid-column: 1 / -1; }
  .footer-contact__list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px 26px;
  }
}

@media (max-width: 900px) {
  .nav-toggle {
    display: inline-flex;
    position: absolute;
    top: 50%;
    right: 0;
    transform: translateY(-50%);
    z-index: 95;
    padding: 9px 13px;
    transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
  }

  .nav-toggle:hover,
  .nav-toggle[aria-expanded="true"] {
    color: var(--neon);
    border-color: var(--neon);
  }

  .nav-toggle[aria-expanded="true"] .nav-toggle__bars i:nth-child(1) {
    transform: translateY(6px) rotate(45deg);
  }
  .nav-toggle[aria-expanded="true"] .nav-toggle__bars i:nth-child(2) {
    opacity: 0;
  }
  .nav-toggle[aria-expanded="true"] .nav-toggle__bars i:nth-child(3) {
    transform: translateY(-6px) rotate(-45deg);
  }

  .site-nav {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    z-index: 80;
    display: block;
    width: min(88vw, 350px);
    padding: 92px 24px 40px;
    overflow-y: auto;
    overscroll-behavior: contain;
    transform: translateX(103%);
    background: linear-gradient(180deg, #121417 0%, #0B1F1A 60%, #171430 100%);
    border-top: 0;
    border-left: 1px solid rgba(59, 242, 208, 0.28);
    box-shadow: -34px 0 80px rgba(0, 0, 0, 0.62);
    transition: transform 0.42s var(--ease);
  }

  .site-header[data-open="true"] .site-nav { transform: translateX(0); }

  .site-nav__hint {
    padding: 0 0 12px;
    margin-bottom: 14px;
    text-align: left;
    line-height: 1.6;
    border-bottom: 1px solid var(--line-soft);
  }

  .site-nav__list {
    flex-direction: column;
    align-items: stretch;
    justify-content: flex-start;
    gap: 2px;
  }

  .site-nav__link {
    padding: 14px 12px;
    letter-spacing: 0.1em;
    border-bottom: 1px solid var(--line-soft);
    border-left: 2px solid transparent;
    border-radius: 0;
  }

  .site-nav__link:hover,
  .site-nav__link[aria-current="page"] {
    border-left-color: var(--neon);
    border-bottom-color: var(--line-soft);
    border-radius: 0;
  }

  body.nav-open { overflow: hidden; }
}

@media (max-width: 760px) {
  .footer-main {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .footer-contact__list { grid-template-columns: 1fr; }
  .footer-base__meta { margin-left: 0; }
  .footer-base__icp { padding-left: 0; border-left: 0; }
}

@media (max-width: 640px) {
  .header-rail__inner {
    min-height: 38px;
    gap: 10px;
    font-size: 11px;
    letter-spacing: 0.04em;
  }
  .header-util { gap: 14px; }
  .masthead__sub { letter-spacing: 0.3em; text-indent: 0.3em; }
  .footer-base__inner { font-size: 11px; }
}

@media (max-width: 520px) {
  .footer-nav { grid-template-columns: 1fr 1fr; gap: 22px; }
}

@media (max-width: 420px) {
  .nav-toggle { padding: 10px; gap: 0; }
  .nav-toggle__text { display: none; }
  .footer-nav { grid-template-columns: 1fr; }
}

/* ---------- 12. Reduced motion ---------- */
@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;
    transition-delay: 0ms !important;
  }

  html.js-reveal [data-reveal]:not(.is-in) {
    opacity: 1;
    transform: none;
  }

  .dot--live,
  .status-chip--amber::before { animation: none !important; }

  .site-nav { transition: none; }
}