/* ==========================================================================
   半岛体育 · /assets/site.css
   共享层：reset / 变量 / 中文排版 / 页头 / 页脚 / 通用组件
   ========================================================================== */

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

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

body,
h1, h2, h3, h4, p, ul, ol, li, figure, figcaption, blockquote { margin: 0; }

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

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

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

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

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

[id] { scroll-margin-top: 120px; }

/* ---------- 变量 ---------- */
:root {
  --c-deep: #03101C;
  --c-trench: #08253A;
  --c-paper: #F5F6EF;
  --c-ink: #0B1220;
  --c-cyan: #21D4E0;
  --c-teal: #0A7C8A;
  --c-amber: #FFB02E;
  --c-lime: #57F2A1;
  --c-mist: #607D8B;
  --c-haze: #D8E3E8;

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

  --w-max: 1440px;
  --pad-x: clamp(20px, 4vw, 72px);
  --gap: 24px;

  --hair: rgba(216, 227, 232, 0.18);
  --hair-strong: rgba(216, 227, 232, 0.34);
  --ink-hair: rgba(11, 18, 32, 0.14);

  --dur: 180ms;
  --ease: cubic-bezier(0.2, 0.7, 0.3, 1);
}

/* ---------- 基础排版 ---------- */
body {
  background: var(--c-deep);
  color: var(--c-haze);
  font-family: var(--font-sans);
  font-size: 17px;
  line-height: 1.75;
  letter-spacing: 0.01em;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1, h2, h3, h4 { font-weight: 900; line-height: 1.24; letter-spacing: -0.02em; }

::selection { background: var(--c-cyan); color: var(--c-deep); }

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

/* ---------- Skip link ---------- */
.skip-link {
  position: fixed;
  top: 8px;
  left: 8px;
  z-index: 200;
  padding: 10px 18px;
  background: var(--c-cyan);
  color: var(--c-deep);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.08em;
  transform: translateY(-160%);
  transition: transform var(--dur) var(--ease);
}

.skip-link:focus-visible,
.skip-link:focus {
  transform: translateY(0);
  outline-offset: 2px;
}

/* ==========================================================================
   页头
   ========================================================================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 90;
  background: var(--c-deep);
  border-bottom: 1px solid var(--hair-strong);
}

.site-header__status {
  background: var(--c-trench);
  border-bottom: 1px solid var(--hair);
}

.status-inner {
  max-width: var(--w-max);
  margin: 0 auto;
  padding: 6px var(--pad-x);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  font-size: 12px;
  letter-spacing: 0.08em;
}

.status-inner__meta {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  color: var(--c-mist);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.live {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--c-lime);
  font-size: 12px;
  letter-spacing: 0.08em;
  white-space: nowrap;
}

.live__dot {
  display: inline-block;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--c-lime);
  animation: livePulse 1.8s ease-in-out infinite;
}

@keyframes livePulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(87, 242, 161, 0.45); opacity: 1; }
  50% { box-shadow: 0 0 0 5px rgba(87, 242, 161, 0); opacity: 0.7; }
}

.site-header__bar {
  border-top: 2px solid var(--c-cyan);
}

.bar-inner {
  position: relative;
  max-width: var(--w-max);
  margin: 0 auto;
  padding: 0 var(--pad-x);
  min-height: 74px;
  display: flex;
  align-items: center;
  gap: clamp(16px, 2.5vw, 40px);
}

/* ---------- 品牌 ---------- */
.brand {
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 0;
}

.brand__mark {
  position: relative;
  display: block;
  width: 36px;
  height: 36px;
  flex: 0 0 auto;
  border: 1px solid rgba(33, 212, 224, 0.55);
  background: linear-gradient(160deg, rgba(33, 212, 224, 0.16), transparent 62%);
  transition: border-color var(--dur) var(--ease);
}

.brand__mark::before {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  width: 10px;
  height: 10px;
  background: var(--c-cyan);
  transform: translate(-50%, -50%) rotate(45deg);
}

.brand__mark::after {
  content: "";
  position: absolute;
  right: -1px;
  bottom: -1px;
  width: 9px;
  height: 9px;
  background: var(--c-amber);
}

.brand:hover .brand__mark { border-color: var(--c-cyan); }

.brand__text { display: block; }

.brand__name {
  display: block;
  font-size: 20px;
  font-weight: 900;
  line-height: 1.2;
  letter-spacing: 0.02em;
  color: var(--c-paper);
}

.brand__descriptor {
  display: block;
  margin-top: 3px;
  font-size: 11px;
  line-height: 1.4;
  letter-spacing: 0.14em;
  color: var(--c-mist);
}

/* ---------- 命令栏 ---------- */
.cmdbar {
  flex: 1 1 auto;
  display: flex;
  align-items: center;
  min-width: 0;
}

.cmdbar__label {
  flex: 0 0 auto;
  padding-right: 14px;
  margin-right: 14px;
  border-right: 1px solid var(--hair);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.24em;
  color: var(--c-mist);
  white-space: nowrap;
}

.nav-list {
  display: flex;
  align-items: stretch;
  gap: 2px;
  min-width: 0;
  overflow-x: auto;
  scrollbar-width: none;
}

.nav-list::-webkit-scrollbar { display: none; }

.nav-item { display: flex; }

.nav-link {
  position: relative;
  display: inline-flex;
  align-items: baseline;
  gap: 7px;
  padding: 10px 12px;
  font-size: 14px;
  letter-spacing: 0.04em;
  color: var(--c-haze);
  white-space: nowrap;
  border-bottom: 2px solid transparent;
  transition: color var(--dur) var(--ease),
              background-color var(--dur) var(--ease),
              border-color var(--dur) var(--ease);
}

.nav-link__index {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.06em;
  color: var(--c-mist);
  transition: color var(--dur) var(--ease);
}

.nav-link:hover {
  color: var(--c-cyan);
  background: rgba(33, 212, 224, 0.07);
}

.nav-link:hover .nav-link__index { color: var(--c-cyan); }

.nav-link[aria-current="page"] {
  color: var(--c-cyan);
  border-bottom-color: var(--c-cyan);
}

.nav-link[aria-current="page"] .nav-link__index { color: var(--c-amber); }

.header-tools {
  flex: 0 0 auto;
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 12px;
}

/* ---------- 移动导航按钮 ---------- */
.nav-toggle {
  display: none;
  align-items: center;
  gap: 9px;
  padding: 9px 13px;
  border: 1px solid var(--hair-strong);
  color: var(--c-haze);
  font-size: 12px;
  letter-spacing: 0.12em;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

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

.nav-toggle__bars {
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  gap: 4px;
  width: 16px;
  height: 12px;
}

.nav-toggle__bars span {
  display: block;
  height: 2px;
  background: currentColor;
  transition: transform var(--dur) var(--ease), opacity var(--dur) var(--ease);
}

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

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

/* ==========================================================================
   页脚
   ========================================================================== */
.site-footer {
  background: var(--c-trench);
  color: var(--c-haze);
  border-top: 3px solid var(--c-cyan);
}

.footer-main {
  max-width: var(--w-max);
  margin: 0 auto;
  padding: clamp(40px, 6vw, 84px) var(--pad-x) clamp(32px, 4vw, 60px);
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr 1.6fr;
  gap: clamp(26px, 3.4vw, 52px);
  align-items: start;
}

.footer-brand__name {
  font-size: clamp(22px, 2.4vw, 30px);
  font-weight: 900;
  letter-spacing: -0.01em;
  color: var(--c-paper);
}

.footer-brand__line {
  margin-top: 10px;
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--c-haze);
}

.footer-brand__tag {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 16px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.02em;
  color: var(--c-lime);
}

.footer-brand__cta { margin-top: 24px; }

.footer-col__title {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.2em;
  color: var(--c-cyan);
  text-transform: uppercase;
}

.footer-links {
  margin-top: 16px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-link {
  display: inline-block;
  padding-bottom: 2px;
  font-size: 14px;
  color: var(--c-haze);
  border-bottom: 1px solid transparent;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.footer-link:hover {
  color: var(--c-cyan);
  border-bottom-color: var(--c-cyan);
}

.contact-list {
  margin-top: 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.contact-row {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 10px;
  padding-bottom: 12px;
  border-bottom: 1px dashed rgba(216, 227, 232, 0.16);
}

.contact-row__key {
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--c-mist);
  white-space: nowrap;
}

.contact-row__val {
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.6;
  color: var(--c-paper);
  overflow-wrap: anywhere;
}

.copy-btn {
  padding: 4px 10px;
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--c-cyan);
  border: 1px solid rgba(33, 212, 224, 0.4);
  background: rgba(33, 212, 224, 0.08);
  white-space: nowrap;
  transition: color var(--dur) var(--ease),
              background-color var(--dur) var(--ease),
              border-color var(--dur) var(--ease);
}

.copy-btn:hover {
  background: rgba(33, 212, 224, 0.2);
  border-color: var(--c-cyan);
}

.copy-btn[data-copy-state="done"] {
  background: var(--c-cyan);
  border-color: var(--c-cyan);
  color: var(--c-deep);
}

.copy-btn[data-copy-state="error"] {
  background: var(--c-amber);
  border-color: var(--c-amber);
  color: var(--c-deep);
}

.footer-note {
  margin-top: 16px;
  font-size: 12px;
  line-height: 1.75;
  color: var(--c-mist);
}

.footer-bottom {
  background: var(--c-deep);
  border-top: 1px solid var(--hair);
}

.footer-bottom__inner {
  max-width: var(--w-max);
  margin: 0 auto;
  padding: 16px var(--pad-x);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px 24px;
  font-size: 12px;
  color: var(--c-mist);
}

.footer-legal {
  font-family: var(--font-mono);
  letter-spacing: 0.04em;
}

.footer-copy { letter-spacing: 0.04em; }

.backtop {
  padding: 6px 14px;
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--c-haze);
  border: 1px solid var(--hair-strong);
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.backtop:hover { color: var(--c-cyan); border-color: var(--c-cyan); }

/* ==========================================================================
   通用组件（页面阶段复用）
   ========================================================================== */

/* 容器 */
.container {
  width: 100%;
  max-width: var(--w-max);
  margin: 0 auto;
  padding: 0 var(--pad-x);
}

.container--narrow {
  width: 100%;
  max-width: 860px;
  margin: 0 auto;
  padding: 0 var(--pad-x);
}

/* 按钮 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 22px;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.06em;
  line-height: 1.2;
  border: 1px solid transparent;
  transition: color var(--dur) var(--ease),
              background-color var(--dur) var(--ease),
              border-color var(--dur) var(--ease);
}

.btn--primary {
  background: var(--c-cyan);
  border-color: var(--c-cyan);
  color: var(--c-deep);
}

.btn--primary:hover { background: var(--c-paper); border-color: var(--c-paper); }

.btn--ghost {
  background: transparent;
  border-color: var(--hair-strong);
  color: var(--c-haze);
}

.btn--ghost:hover { border-color: var(--c-cyan); color: var(--c-cyan); }

.btn--amber {
  background: var(--c-amber);
  border-color: var(--c-amber);
  color: var(--c-deep);
}

.btn--amber:hover { background: var(--c-paper); border-color: var(--c-paper); }

/* 面包屑 */
.breadcrumbs { padding-top: 20px; }

.breadcrumbs__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--c-mist);
}

.breadcrumbs__sep { color: rgba(216, 227, 232, 0.32); }

.breadcrumbs__link {
  color: var(--c-haze);
  border-bottom: 1px solid transparent;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.breadcrumbs__link:hover { color: var(--c-cyan); border-bottom-color: var(--c-cyan); }

.breadcrumbs__current { color: var(--c-cyan); }

/* 章节 */
.section { padding: clamp(48px, 7vw, 112px) 0; }

.section__eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--c-cyan);
}

.section__title {
  margin-top: 10px;
  font-size: clamp(28px, 4vw, 48px);
  font-weight: 900;
  letter-spacing: -0.02em;
  color: var(--c-paper);
}

.section__lede {
  max-width: 58ch;
  margin-top: 14px;
  font-size: 16px;
  line-height: 1.8;
  color: var(--c-haze);
}

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

.grid--7-5 { grid-template-columns: 7fr 5fr; }

.grid--8-4 { grid-template-columns: 8fr 4fr; }

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

/* 纸白面板 */
.panel {
  background: var(--c-paper);
  color: var(--c-ink);
  padding: clamp(20px, 3vw, 36px);
  border-top: 3px solid var(--c-cyan);
}

.panel__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px 16px;
  padding-bottom: 12px;
  margin-bottom: 16px;
  border-bottom: 1px solid var(--ink-hair);
}

.panel__title {
  font-size: 20px;
  font-weight: 900;
  letter-spacing: -0.01em;
}

/* 正文排版 */
.prose {
  color: var(--c-ink);
  font-size: 17px;
  line-height: 1.85;
}

.prose > * + * { margin-top: 1.05em; }

.prose h2 {
  font-size: clamp(22px, 2.6vw, 30px);
  letter-spacing: -0.01em;
}

.prose h3 { font-size: 19px; }

.prose a {
  color: var(--c-teal);
  border-bottom: 1px solid rgba(10, 124, 138, 0.36);
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.prose a:hover { color: var(--c-ink); border-bottom-color: var(--c-cyan); }

.prose ul { list-style: disc; padding-left: 1.25em; }

.prose ol { list-style: decimal; padding-left: 1.25em; }

.prose li::marker { color: var(--c-teal); }

.prose blockquote {
  padding-left: 16px;
  border-left: 3px solid var(--c-cyan);
  color: #33414F;
}

.prose code {
  font-family: var(--font-mono);
  font-size: 0.92em;
  padding: 0.08em 0.36em;
  background: rgba(11, 18, 32, 0.07);
}

/* 数据带 */
.data-band {
  background: var(--c-trench);
  border: 1px solid var(--hair);
  border-left: 3px solid var(--c-cyan);
  padding: clamp(16px, 2.2vw, 26px);
}

/* 标签 */
.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 9px;
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--c-haze);
  border: 1px solid var(--hair-strong);
  white-space: nowrap;
}

.tag--live { color: var(--c-lime); border-color: rgba(87, 242, 161, 0.42); }

.tag--score { color: var(--c-amber); border-color: rgba(255, 176, 46, 0.42); }

.tag--cyan { color: var(--c-cyan); border-color: rgba(33, 212, 224, 0.42); }

/* 图片容器（页面阶段填 <img>） */
.figure-frame {
  position: relative;
  display: block;
  overflow: hidden;
  background: var(--c-trench);
  border: 1px solid var(--hair);
  aspect-ratio: 16 / 9;
}

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

.figure-frame::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: 0.28;
  background-image:
    linear-gradient(rgba(33, 212, 224, 0.22) 1px, transparent 1px),
    linear-gradient(90deg, rgba(33, 212, 224, 0.22) 1px, transparent 1px);
  background-size: 48px 48px;
}

.figure-frame--wide { aspect-ratio: 21 / 9; }

.figure-frame--square { aspect-ratio: 1 / 1; }

.figure-frame--tall { aspect-ratio: 4 / 5; }

.figure-frame__tag {
  position: absolute;
  left: 0;
  top: 0;
  z-index: 1;
  padding: 4px 10px;
  background: var(--c-cyan);
  color: var(--c-deep);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.14em;
}

.figure-frame__cap {
  display: block;
  margin-top: 10px;
  font-size: 12px;
  line-height: 1.6;
  color: var(--c-mist);
}

/* 滚动显现（JS 开启后才生效） */
html.reveal-ready [data-reveal] {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 320ms var(--ease), transform 320ms var(--ease);
}

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

/* ==========================================================================
   响应式
   ========================================================================== */
@media (max-width: 1199px) {
  .footer-main { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .footer-contact { grid-column: 1 / -1; }
}

@media (max-width: 1023px) {
  .nav-toggle { display: inline-flex; }

  .cmdbar {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    z-index: 2;
    display: block;
    padding: 20px var(--pad-x) 28px;
    background: var(--c-trench);
    border-bottom: 2px solid var(--c-cyan);
    box-shadow: 0 28px 48px rgba(0, 0, 0, 0.55);
    max-height: 78vh;
    overflow-y: auto;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: opacity var(--dur) var(--ease),
                transform var(--dur) var(--ease),
                visibility var(--dur) var(--ease);
  }

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

  .cmdbar__label {
    writing-mode: horizontal-tb;
    margin: 0 0 12px;
    padding: 0;
    border-right: 0;
    font-size: 11px;
    letter-spacing: 0.24em;
    color: var(--c-cyan);
  }

  .nav-list {
    flex-direction: column;
    overflow: visible;
  }

  .nav-item { width: 100%; }

  .nav-link {
    display: flex;
    width: 100%;
    padding: 14px 2px;
    font-size: 19px;
    font-weight: 700;
    letter-spacing: 0.02em;
    border-bottom: 1px solid var(--hair);
  }

  .nav-link__index { font-size: 12px; }

  .nav-link[aria-current="page"] {
    border-bottom-color: var(--hair);
    box-shadow: inset 3px 0 0 var(--c-cyan);
    padding-left: 12px;
  }

  .grid--7-5,
  .grid--8-4,
  .grid--3 { grid-template-columns: 1fr; }
}

@media (max-width: 767px) {
  body { font-size: 16px; }

  .bar-inner { min-height: 66px; gap: 12px; }

  .brand__name { font-size: 18px; }

  .brand__descriptor { font-size: 10px; letter-spacing: 0.1em; }

  .brand__mark { width: 32px; height: 32px; }

  .status-inner { font-size: 11px; gap: 10px; }

  .live { font-size: 11px; }

  .footer-main { grid-template-columns: 1fr; }

  .footer-contact { grid-column: auto; }

  .footer-bottom__inner { justify-content: flex-start; }

  .contact-row { grid-template-columns: auto minmax(0, 1fr); row-gap: 8px; }

  .contact-row .copy-btn { grid-column: 2; justify-self: start; }
}

@media (max-width: 359px) {
  .status-inner__meta { display: none; }
}

/* ==========================================================================
   可访问性：弱化动效
   ========================================================================== */
@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;
  }

  .live__dot { animation: none; }

  html.reveal-ready [data-reveal] {
    opacity: 1 !important;
    transform: none !important;
  }
}