/* ==========================================================================
   半岛赛事 · 全站共享样式  /assets/site.css
   深海墨蓝铺底 + 玻璃命令栏 + 等宽数据层级
   ========================================================================== */

/* ---------------------------------------------------------------
   1. 设计变量
   --------------------------------------------------------------- */
:root {
  --ink: #0A1B2A;
  --ink-2: #12293D;
  --panel: #0E2231;
  --signal: #FF6B2C;
  --cyan: #3FE0D0;
  --mist: #E8EEF5;
  --grey: #7E8CA0;
  --steel: #2B6E8F;
  --fjord: #1E4E6B;
  --warn: #F5C451;
  --white: #FFFFFF;
  --text-soft: #B9C6D6;
  --text-body: #CBD7E4;

  --line: rgba(232, 238, 245, 0.12);
  --line-strong: rgba(232, 238, 245, 0.24);
  --glass: rgba(18, 41, 61, 0.62);
  --tint: rgba(232, 238, 245, 0.04);
  --tint-strong: rgba(232, 238, 245, 0.08);

  --radius: 8px;
  --radius-sm: 4px;
  --shell: 1480px;
  --shell-text: 1240px;
  --measure: 36em;

  --font-display: "Source Han Sans SC", "Noto Sans SC", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  --font-body: "Noto Sans SC", "Source Han Sans SC", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, sans-serif;
  --font-mono: "IBM Plex Mono", "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;

  --ease: 0.45s cubic-bezier(0.22, 0.7, 0.3, 1);
}

/* ---------------------------------------------------------------
   2. Reset 与基础排版
   --------------------------------------------------------------- */
*,
*::before,
*::after { box-sizing: border-box; }

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

body {
  margin: 0;
  min-height: 100%;
  background-color: var(--ink);
  background-image:
    radial-gradient(1200px 620px at 78% -12%, rgba(43, 110, 143, 0.30), transparent 70%),
    radial-gradient(900px 520px at -6% 4%, rgba(30, 78, 107, 0.22), transparent 68%);
  background-repeat: no-repeat;
  color: var(--mist);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.75;
  letter-spacing: 0.01em;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

img { height: auto; }

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

p { margin: 0 0 1em; }

a { color: var(--cyan); text-decoration: none; }
a:hover { color: var(--mist); text-decoration: underline; }

button { font: inherit; color: inherit; }

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

h1, h2, h3, h4, h5 {
  margin: 0 0 0.5em;
  font-family: var(--font-display);
  font-weight: 900;
  font-stretch: condensed;
  letter-spacing: -0.02em;
  line-height: 1.06;
  color: var(--white);
}

h1 { font-size: clamp(34px, 4.8vw, 64px); }
h2 { font-size: clamp(26px, 3.2vw, 40px); }
h3 { font-size: clamp(20px, 2vw, 28px); line-height: 1.2; letter-spacing: -0.01em; }
h4 { font-size: 20px; line-height: 1.3; letter-spacing: 0; }

::selection { background: rgba(63, 224, 208, 0.28); color: var(--white); }

/* ---------------------------------------------------------------
   3. 跳至主内容
   --------------------------------------------------------------- */
.skip-link {
  position: absolute;
  left: 16px;
  top: -72px;
  z-index: 120;
  padding: 10px 18px;
  background: var(--signal);
  color: #0A1B2A;
  font-weight: 700;
  font-size: 14px;
  border-radius: 0 0 var(--radius) var(--radius);
  transition: top 0.2s ease;
}
.skip-link:focus { top: 0; text-decoration: none; color: #0A1B2A; }

/* ---------------------------------------------------------------
   4. 顶部紧凑命令栏
   --------------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 60;
  --header-h: 72px;
  background: rgba(10, 27, 42, 0.82);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  backdrop-filter: blur(14px) saturate(140%);
  border-bottom: 1px solid var(--line);
}
.site-header[data-compact="true"] { --header-h: 56px; }
.site-header[data-open="true"] {
  background: rgba(10, 27, 42, 0.97);
  border-bottom-color: var(--line-strong);
}

.header-progress {
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 2px;
  pointer-events: none;
}
.header-progress__bar {
  display: block;
  width: 0;
  height: 100%;
  background: linear-gradient(90deg, var(--cyan), var(--signal));
}

.header-inner {
  display: flex;
  align-items: center;
  gap: 20px;
  min-height: var(--header-h);
  width: 100%;
  max-width: var(--shell);
  margin: 0 auto;
  padding: 0 clamp(16px, 3vw, 40px);
  transition: min-height 0.3s ease;
}

/* 品牌署名 */
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  flex: 0 0 auto;
  color: var(--mist);
  text-decoration: none;
}
.brand:hover { color: var(--mist); text-decoration: none; }

.brand__mark {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  border: 1px solid rgba(63, 224, 208, 0.5);
  background:
    radial-gradient(circle at 50% 50%, var(--signal) 0 22%, rgba(255, 107, 44, 0.18) 23% 46%, transparent 47%),
    conic-gradient(from 200deg, rgba(63, 224, 208, 0.9), rgba(63, 224, 208, 0) 58%);
  flex: 0 0 auto;
}

.brand__text { display: block; }
.brand__name {
  display: block;
  font-family: var(--font-display);
  font-weight: 900;
  font-stretch: condensed;
  font-size: 17px;
  letter-spacing: 0.02em;
  line-height: 1.15;
  color: var(--white);
}
.brand__line {
  display: block;
  font-size: 12px;
  line-height: 1.3;
  color: var(--grey);
}

/* 栏目索引 */
.nav {
  flex: 1 1 auto;
  display: flex;
  justify-content: center;
  min-width: 0;
}
.nav__list {
  display: flex;
  align-items: center;
  gap: 2px;
}
.nav__item { display: block; }

.nav__link {
  display: inline-flex;
  align-items: baseline;
  gap: 6px;
  padding: 8px 12px;
  border: 1px solid transparent;
  border-radius: var(--radius);
  color: var(--text-soft);
  font-size: 14px;
  line-height: 1.3;
  white-space: nowrap;
  text-decoration: none;
  transition: color 0.2s ease, background-color 0.2s ease, border-color 0.2s ease;
}
.nav__link:hover {
  color: var(--mist);
  background: var(--tint);
  text-decoration: none;
}
.nav__link[aria-current="page"] {
  color: var(--white);
  background: rgba(63, 224, 208, 0.1);
  border-color: rgba(63, 224, 208, 0.35);
}

.nav__index {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--grey);
}
.nav__link[aria-current="page"] .nav__index { color: var(--cyan); }
.nav__label { display: inline-block; }

/* 操作区 */
.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex: 0 0 auto;
}

.header-status {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 5px 11px;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--grey);
  white-space: nowrap;
}
.header-status__dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--signal);
  box-shadow: 0 0 0 3px rgba(255, 107, 44, 0.18);
  flex: 0 0 auto;
}

/* 移动导航按钮 */
.nav-toggle {
  display: none;
  align-items: center;
  gap: 9px;
  padding: 9px 12px;
  background: var(--tint);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  color: var(--mist);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  cursor: pointer;
  transition: border-color 0.2s ease, background-color 0.2s ease;
}
.nav-toggle:hover { border-color: rgba(63, 224, 208, 0.45); }

.nav-toggle__bars {
  position: relative;
  display: block;
  width: 16px;
  height: 2px;
  background: currentColor;
  flex: 0 0 auto;
}
.nav-toggle__bars::before,
.nav-toggle__bars::after {
  content: "";
  position: absolute;
  left: 0;
  width: 16px;
  height: 2px;
  background: currentColor;
  transition: transform 0.25s ease;
}
.nav-toggle__bars::before { top: -5px; }
.nav-toggle__bars::after { top: 5px; }
.site-header[data-open="true"] .nav-toggle__bars { background: transparent; }
.site-header[data-open="true"] .nav-toggle__bars::before { transform: translateY(5px) rotate(45deg); }
.site-header[data-open="true"] .nav-toggle__bars::after { transform: translateY(-5px) rotate(-45deg); }

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

/* ---------------------------------------------------------------
   5. 通用按钮
   --------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 20px;
  border: 1px solid transparent;
  border-radius: var(--radius);
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 700;
  line-height: 1;
  color: var(--mist);
  text-decoration: none;
  cursor: pointer;
  transition: background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}
.btn:hover { text-decoration: none; }

.btn--signal {
  background: var(--signal);
  border-color: rgba(255, 107, 44, 0.6);
  color: #0A1B2A;
}
.btn--signal:hover { background: #FF8149; color: #0A1B2A; }

.btn--ghost {
  background: var(--tint);
  border-color: var(--line);
  color: var(--mist);
}
.btn--ghost:hover { border-color: rgba(63, 224, 208, 0.45); color: var(--white); }

.btn--sm { padding: 9px 15px; font-size: 13px; }

/* ---------------------------------------------------------------
   6. 容器 / 章节 / 栅格
   --------------------------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--shell-text);
  margin: 0 auto;
  padding: 0 clamp(20px, 4vw, 48px);
}
.container--narrow { max-width: 820px; }
.container--wide { max-width: var(--shell); }

.section {
  padding: clamp(48px, 7vw, 96px) 0;
  border-top: 1px solid var(--line);
}
.section--tight { padding: clamp(28px, 4vw, 48px) 0; }

.section__head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 20px;
  margin-bottom: clamp(24px, 3vw, 40px);
}

.rule {
  height: 1px;
  border: 0;
  margin: 0;
  background: var(--line);
}

.grid { display: grid; gap: 24px; }
.grid--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }

.split { display: grid; gap: clamp(28px, 4vw, 56px); grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); }
.split--reverse { grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); }
.split--4-8 { grid-template-columns: minmax(0, 4fr) minmax(0, 8fr); }

/* ---------------------------------------------------------------
   7. 文本层级
   --------------------------------------------------------------- */
.eyebrow {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--cyan);
}
.eyebrow::before {
  content: "";
  display: block;
  width: 22px;
  height: 1px;
  background: var(--cyan);
  flex: 0 0 auto;
}

.lede {
  max-width: var(--measure);
  font-size: 20px;
  line-height: 1.7;
  color: var(--text-body);
}

.prose {
  max-width: var(--measure);
  color: var(--text-body);
}
.prose p { margin: 0 0 1.15em; }
.prose strong { color: var(--white); font-weight: 700; }

.num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-weight: 600;
  color: var(--white);
}

.small {
  font-size: 13px;
  color: var(--grey);
}

/* ---------------------------------------------------------------
   8. 卡片 / 数据件 / 标签
   --------------------------------------------------------------- */
.card {
  padding: clamp(20px, 2.4vw, 28px);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
}
.card--glass {
  background: var(--glass);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
}
.card--solid { background: var(--panel); }

.card__title {
  margin: 0 0 8px;
  font-size: 20px;
  font-weight: 800;
  color: var(--white);
}
.card__meta {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--grey);
}

.stat {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 16px 18px;
  border-left: 2px solid var(--cyan);
  background: var(--tint);
}
.stat__value {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-weight: 600;
  font-size: 28px;
  line-height: 1;
  color: var(--white);
}
.stat__label {
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--grey);
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 9px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--tint);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--text-soft);
  white-space: nowrap;
}
.tag--signal {
  color: #FFC7AC;
  border-color: rgba(255, 107, 44, 0.45);
  background: rgba(255, 107, 44, 0.12);
}
.tag--cyan {
  color: #A9F5EC;
  border-color: rgba(63, 224, 208, 0.4);
  background: rgba(63, 224, 208, 0.1);
}
.tag--warn {
  color: #F7DFA5;
  border-color: rgba(245, 196, 81, 0.4);
  background: rgba(245, 196, 81, 0.1);
}

/* ---------------------------------------------------------------
   9. 面包屑
   --------------------------------------------------------------- */
.breadcrumbs {
  padding: 18px 0 0;
  font-family: var(--font-mono);
  font-size: 12px;
}
.breadcrumbs__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}
.breadcrumbs__item {
  display: flex;
  align-items: center;
  gap: 8px;
}
.breadcrumbs__link { color: var(--text-soft); text-decoration: none; }
.breadcrumbs__link:hover { color: var(--cyan); text-decoration: none; }
.breadcrumbs__sep { color: #3A4B5E; }
.breadcrumbs__current { color: var(--mist); }

/* ---------------------------------------------------------------
   10. 图片容器基础规则
   --------------------------------------------------------------- */
.media {
  --media-ratio: 16 / 9;
  position: relative;
  display: block;
  width: 100%;
  aspect-ratio: var(--media-ratio);
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(160deg, var(--fjord), var(--ink-2));
}
.media--wide { --media-ratio: 21 / 9; }
.media--tall { --media-ratio: 4 / 5; }
.media--square { --media-ratio: 1 / 1; }

.media__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.media--radar::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    repeating-radial-gradient(circle at 30% 34%, rgba(63, 224, 208, 0.18) 0 1px, transparent 1px 44px),
    linear-gradient(115deg, rgba(255, 107, 44, 0.16), transparent 58%);
}

.media__caption {
  position: absolute;
  left: 12px;
  bottom: 12px;
  padding: 4px 9px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: rgba(10, 27, 42, 0.72);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.05em;
  color: var(--mist);
}

/* ---------------------------------------------------------------
   11. 滚动显现
   --------------------------------------------------------------- */
html[data-js="true"] [data-reveal] {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity var(--ease), transform var(--ease);
  transition-delay: var(--reveal-delay, 0ms);
}
html[data-js="true"] [data-reveal].is-visible {
  opacity: 1;
  transform: none;
}

/* ---------------------------------------------------------------
   12. 页脚
   --------------------------------------------------------------- */
.site-footer {
  margin-top: clamp(48px, 7vw, 96px);
  border-top: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(18, 41, 61, 0.6), rgba(10, 27, 42, 0.98));
}

.footer-inner {
  display: grid;
  grid-template-columns: minmax(240px, 1.1fr) 2fr;
  gap: clamp(28px, 4vw, 56px);
  width: 100%;
  max-width: var(--shell);
  margin: 0 auto;
  padding: clamp(40px, 5vw, 64px) clamp(16px, 3vw, 40px) 32px;
}

.footer-brand { min-width: 0; }
.footer-brand__name {
  display: block;
  margin-bottom: 10px;
  font-family: var(--font-display);
  font-weight: 900;
  font-stretch: condensed;
  font-size: 28px;
  letter-spacing: -0.01em;
  line-height: 1.1;
  color: var(--white);
}
.footer-brand__line {
  margin: 0 0 8px;
  font-size: 14px;
  color: var(--text-soft);
}
.footer-brand__tag {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--grey);
}

.footer-cols {
  display: grid;
  grid-template-columns: repeat(3, minmax(140px, 1fr));
  gap: 24px;
}
.footer-col { min-width: 0; }
.footer-col__title {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--cyan);
  line-height: 1.4;
}
.footer-col__list { display: flex; flex-direction: column; gap: 10px; }
.footer-link {
  font-size: 14px;
  color: var(--text-soft);
  text-decoration: none;
}
.footer-link:hover { color: var(--white); text-decoration: none; }

.footer-contact {
  display: flex;
  flex-wrap: wrap;
  gap: 14px 36px;
  margin-top: clamp(28px, 3vw, 40px);
  padding-top: 24px;
  border-top: 1px solid var(--line);
}
.footer-contact__item {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin: 0;
  font-size: 13px;
  color: var(--mist);
  word-break: break-all;
}
.footer-contact__label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--grey);
  flex: 0 0 auto;
}

.footer-legal {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  width: 100%;
  max-width: var(--shell);
  margin: 0 auto;
  padding: 16px clamp(16px, 3vw, 40px) 32px;
  border-top: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.03em;
  color: var(--grey);
}
.footer-legal__copy { margin: 0; }
.footer-legal__icp { margin: 0; color: var(--grey); }

/* ---------------------------------------------------------------
   13. 响应式
   --------------------------------------------------------------- */
@media (max-width: 1120px) and (min-width: 901px) {
  .nav__link { padding: 8px 8px; font-size: 13px; }
  .nav__index { display: none; }
  .brand__line { display: none; }
  .header-status { display: none; }
}

@media (max-width: 1024px) {
  .split,
  .split--reverse,
  .split--4-8 { grid-template-columns: minmax(0, 1fr); }
  .footer-inner { grid-template-columns: minmax(0, 1fr); }
}

@media (max-width: 900px) {
  .site-header { --header-h: 64px; }

  .header-inner {
    flex-wrap: wrap;
    gap: 12px;
    padding: 10px clamp(16px, 4vw, 28px);
  }

  .brand { order: 1; }
  .header-actions { order: 2; margin-left: auto; }
  .header-status { display: none; }

  .nav {
    order: 3;
    flex: 1 1 100%;
    display: none;
    width: 100%;
    margin-top: 4px;
    padding: 6px 0 14px;
    border-top: 1px solid var(--line);
  }
  .site-header[data-open="true"] .nav { display: block; }

  .nav__list { flex-direction: column; align-items: stretch; gap: 2px; }
  .nav__link {
    width: 100%;
    padding: 12px;
    font-size: 15px;
    border-radius: var(--radius-sm);
  }
  .nav__index { display: inline; }

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

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

  .footer-cols { grid-template-columns: repeat(2, minmax(140px, 1fr)); }
}

@media (max-width: 560px) {
  body { font-size: 15px; }
  .lede { font-size: 18px; }
  .header-cta { padding: 9px 12px; font-size: 12px; }
  .nav-toggle { padding: 8px 10px; }
  .nav-toggle__label { display: none; }
  .footer-cols { grid-template-columns: minmax(0, 1fr); }
  .footer-legal { flex-direction: column; align-items: flex-start; }
}

/* ---------------------------------------------------------------
   14. 降低动效偏好
   --------------------------------------------------------------- */
@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;
  }

  html[data-js="true"] [data-reveal] {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .header-progress__bar { transition: none; }
  .skip-link { transition: none; }
}