/* ==========================================================================
   风速体育赛事 · 全站共享样式
   路径：/assets/site.css
   1 重置  2 变量  3 基础排版  4 通用组件  5 头部  6 页脚  7 响应式与动效偏好
   ========================================================================== */

/* 1 重置 ------------------------------------------------------------------ */
*,
*::before,
*::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 88px;
}

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%; }

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

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

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

hr { border: 0; border-top: 1px solid var(--c-line); }

/* 2 变量 ------------------------------------------------------------------ */
:root {
  --c-midnight: #0A1826;
  --c-deep: #10263A;
  --c-green: #12D07C;
  --c-cyan: #35E1E8;
  --c-amber: #FFB020;
  --c-stone: #2B3742;
  --c-moss: #123F33;
  --c-clay: #E1663C;
  --c-mist: #93A7B8;
  --c-paper: #F1F3EC;
  --c-glass: rgba(255, 255, 255, 0.08);
  --c-line: rgba(147, 167, 184, 0.20);
  --c-line-strong: rgba(147, 167, 184, 0.38);

  --font-display: "Barlow Condensed", "Oswald", "Archivo Narrow", "PingFang SC",
                  "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --font-body: "Inter", "Helvetica Neue", Arial, "PingFang SC", "Hiragino Sans GB",
               "Microsoft YaHei", sans-serif;
  --font-num: "SFMono-Regular", "JetBrains Mono", "Roboto Mono", ui-monospace,
              Menlo, Consolas, monospace;

  --shell: 1280px;
  --gutter: clamp(16px, 3.2vw, 36px);
  --radius: 10px;
  --radius-sm: 6px;
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
  --shadow-lift: 0 18px 44px -26px rgba(0, 0, 0, 0.9);
}

/* 3 基础排版 -------------------------------------------------------------- */
body {
  min-height: 100vh;
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.75;
  color: var(--c-paper);
  background-color: var(--c-midnight);
  background-image:
    radial-gradient(1200px 620px at 84% -10%, rgba(53, 225, 232, 0.11), transparent 62%),
    radial-gradient(900px 540px at -8% 14%, rgba(18, 208, 124, 0.10), transparent 60%),
    radial-gradient(760px 480px at 50% 108%, rgba(255, 176, 32, 0.06), transparent 66%),
    linear-gradient(180deg, #0A1826 0%, #0B1D2E 46%, #08131E 100%);
  -webkit-font-smoothing: antialiased;
}

@media (min-width: 900px) {
  body { font-size: 17px; }
  body {
    background-attachment: fixed;
  }
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.15;
}

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

#main-content { scroll-margin-top: 96px; }

/* 4 通用组件 -------------------------------------------------------------- */
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}

.container {
  width: 100%;
  max-width: var(--shell);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.container--narrow { max-width: 820px; }

.skip-link {
  position: absolute;
  top: -90px;
  left: var(--gutter);
  z-index: 200;
  padding: 10px 18px;
  border-radius: 0 0 var(--radius-sm) var(--radius-sm);
  background: var(--c-green);
  color: #04231A;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.02em;
  transition: top 0.18s var(--ease);
}

.skip-link:focus { top: 0; }

/* 按钮 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 18px;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.02em;
  line-height: 1.2;
  white-space: nowrap;
  cursor: pointer;
  transition: transform 0.18s var(--ease), background-color 0.18s var(--ease),
              border-color 0.18s var(--ease), color 0.18s var(--ease);
}

.btn--primary {
  background: var(--c-green);
  color: #04231A;
  box-shadow: 0 10px 26px -14px rgba(18, 208, 124, 0.9);
}

.btn--primary:hover {
  background: #19E08A;
  transform: translateY(-2px);
}

.btn--ghost {
  background: rgba(255, 255, 255, 0.04);
  border-color: var(--c-line-strong);
  color: var(--c-paper);
}

.btn--ghost:hover {
  border-color: var(--c-cyan);
  color: var(--c-cyan);
  transform: translateY(-2px);
}

.btn--sm {
  padding: 7px 13px;
  font-size: 13px;
}

/* 面包屑 */
.breadcrumb { padding-block: 20px; }

.breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--c-mist);
}

.breadcrumb__item {
  display: flex;
  align-items: center;
  gap: 8px;
}

.breadcrumb__item + .breadcrumb__item::before {
  content: "/";
  color: rgba(147, 167, 184, 0.5);
}

.breadcrumb__link { transition: color 0.18s var(--ease); }
.breadcrumb__link:hover { color: var(--c-cyan); }

.breadcrumb__current { color: var(--c-paper); }

/* 展览标签式说明牌 */
.section-label {
  display: inline-flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  padding: 6px 12px;
  border: 1px solid var(--c-line-strong);
  border-left: 2px solid var(--c-green);
  border-radius: 2px var(--radius-sm) var(--radius-sm) 2px;
  background: var(--c-glass);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--c-mist);
  font-variant-numeric: tabular-nums;
}

.section-label__name {
  color: var(--c-paper);
  font-weight: 600;
  letter-spacing: 0.08em;
}

.section-label__meta {
  padding-left: 10px;
  border-left: 1px solid var(--c-line-strong);
}

/* 图片容器 */
.media-frame {
  position: relative;
  display: block;
  overflow: hidden;
  aspect-ratio: 16 / 9;
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  background-image: linear-gradient(135deg, #10263A 0%, #123F33 52%, #0A1826 100%);
  isolation: isolate;
}

.media-frame::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 2;
  pointer-events: none;
  background-image:
    repeating-linear-gradient(115deg, rgba(53, 225, 232, 0.10) 0 1px, transparent 1px 46px),
    linear-gradient(200deg, rgba(53, 225, 232, 0.14), transparent 46%, rgba(10, 24, 38, 0.72));
}

.media-frame img,
.media-frame video {
  position: relative;
  z-index: 1;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.media-frame--21-9 { aspect-ratio: 21 / 9; }
.media-frame--16-9 { aspect-ratio: 16 / 9; }
.media-frame--4-3  { aspect-ratio: 4 / 3; }
.media-frame--3-2  { aspect-ratio: 3 / 2; }
.media-frame--1-1  { aspect-ratio: 1 / 1; }

.media-frame__caption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 3;
  padding: 12px 14px;
  background-image: linear-gradient(180deg, transparent, rgba(8, 19, 30, 0.9));
  -webkit-backdrop-filter: blur(4px);
  backdrop-filter: blur(4px);
  font-size: 12.5px;
  line-height: 1.5;
  color: var(--c-mist);
}

/* 网格 */
.grid {
  display: grid;
  gap: clamp(16px, 2.4vw, 28px);
}

.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)); }

/* 正文容器 */
.prose {
  max-width: 70ch;
  font-size: 16px;
  line-height: 1.85;
  color: var(--c-paper);
}

.prose > * + * { margin-top: 1.15em; }

.prose h2 {
  font-size: clamp(22px, 2.6vw, 30px);
  color: var(--c-paper);
}

.prose ul { display: grid; gap: 0.55em; }

.prose li {
  position: relative;
  padding-left: 20px;
}

.prose li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.78em;
  width: 7px;
  height: 2px;
  background: var(--c-green);
}

/* 数据强调 */
.stat {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.stat__value {
  font-family: var(--font-num);
  font-size: clamp(24px, 3.6vw, 40px);
  line-height: 1.05;
  color: var(--c-amber);
  font-variant-numeric: tabular-nums;
  text-shadow: 0 0 22px rgba(255, 176, 32, 0.28);
}

.stat__label {
  font-size: 12.5px;
  letter-spacing: 0.12em;
  color: var(--c-mist);
}

/* 滚动显现协议 */
[data-reveal] {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 0.5s var(--ease), transform 0.5s var(--ease);
}

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

/* 5 头部 ------------------------------------------------------------------ */
.wp-header {
  position: sticky;
  top: 0;
  z-index: 80;
  color: var(--c-paper);
  background-image: linear-gradient(180deg, rgba(10, 24, 38, 0.97), rgba(10, 24, 38, 0.84));
  -webkit-backdrop-filter: blur(16px) saturate(140%);
  backdrop-filter: blur(16px) saturate(140%);
  border-bottom: 1px solid var(--c-line);
}

.wp-header__inner {
  display: flex;
  align-items: center;
  gap: clamp(12px, 1.8vw, 26px);
  width: 100%;
  max-width: var(--shell);
  margin-inline: auto;
  padding: 13px var(--gutter);
  transition: padding 0.25s var(--ease);
}

.wp-header.is-condensed .wp-header__inner {
  padding-top: 7px;
  padding-bottom: 7px;
}

/* 品牌 */
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  flex: 0 0 auto;
  min-width: 0;
}

.brand__mark {
  flex: 0 0 auto;
  width: 8px;
  height: 28px;
  border-radius: 2px;
  background-image: linear-gradient(180deg, var(--c-cyan), var(--c-green));
  transform: skewX(-14deg);
  box-shadow: 0 0 18px rgba(18, 208, 124, 0.45);
  transition: height 0.25s var(--ease);
}

.wp-header.is-condensed .brand__mark { height: 22px; }

.brand__text {
  display: flex;
  flex-direction: column;
  gap: 1px;
  min-width: 0;
}

.brand__name {
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.15;
  white-space: nowrap;
}

.brand__domain {
  font-family: var(--font-num);
  font-size: 10.5px;
  letter-spacing: 0.06em;
  line-height: 1.2;
  color: var(--c-mist);
  white-space: nowrap;
}

/* 主导航 */
.wp-nav {
  flex: 1 1 auto;
  min-width: 0;
  display: flex;
  justify-content: center;
}

.wp-nav__list {
  display: flex;
  align-items: center;
  gap: 2px;
  flex-wrap: wrap;
}

.wp-nav__item { position: relative; }

.wp-nav__link {
  position: relative;
  display: block;
  padding: 8px 13px;
  border-radius: var(--radius-sm);
  font-size: 14.5px;
  line-height: 1.3;
  color: var(--c-mist);
  transition: color 0.18s var(--ease), background-color 0.18s var(--ease);
}

.wp-nav__link:hover {
  color: var(--c-paper);
  background: rgba(255, 255, 255, 0.06);
}

.wp-nav__link[aria-current="page"] { color: var(--c-paper); }

.wp-nav__link[aria-current="page"]::after {
  content: "";
  position: absolute;
  left: 13px;
  right: 13px;
  bottom: 2px;
  height: 2px;
  border-radius: 2px;
  background-image: linear-gradient(90deg, var(--c-green), var(--c-cyan));
}

.wp-nav__link[aria-current="page"]::before {
  content: "";
  position: absolute;
  right: 4px;
  top: 50%;
  width: 4px;
  height: 4px;
  margin-top: -2px;
  border-radius: 50%;
  background: var(--c-cyan);
  box-shadow: 0 0 8px var(--c-cyan);
}

/* 头部右侧状态区 */
.wp-header__meta {
  display: flex;
  align-items: center;
  gap: 12px;
  flex: 0 0 auto;
}

.status-chip {
  display: inline-flex;
  align-items: baseline;
  gap: 7px;
  padding: 5px 11px;
  border: 1px solid rgba(53, 225, 232, 0.32);
  border-radius: 999px;
  background: rgba(53, 225, 232, 0.07);
  font-variant-numeric: tabular-nums;
}

.status-chip__label {
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--c-mist);
}

.status-chip__value {
  font-family: var(--font-num);
  font-size: 15px;
  line-height: 1.2;
  color: var(--c-cyan);
}

/* 移动菜单按钮 */
.nav-toggle {
  display: none;
  align-items: center;
  gap: 9px;
  padding: 8px 13px;
  border: 1px solid var(--c-line-strong);
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.04);
  color: var(--c-paper);
  font-size: 12.5px;
  letter-spacing: 0.12em;
  cursor: pointer;
  transition: border-color 0.18s var(--ease), color 0.18s var(--ease);
}

.nav-toggle__bars {
  position: relative;
  display: block;
  width: 16px;
  height: 12px;
}

.nav-toggle__bars::before,
.nav-toggle__bars::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  height: 2px;
  border-radius: 2px;
  background: currentColor;
  transition: transform 0.22s var(--ease);
}

.nav-toggle__bars::before { top: 0; }
.nav-toggle__bars::after { bottom: 0; }

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

.wp-header[data-open] .nav-toggle__bars::before { transform: translateY(5px) rotate(45deg); }
.wp-header[data-open] .nav-toggle__bars::after  { transform: translateY(-5px) rotate(-45deg); }

/* 阅读进度线 */
.read-progress {
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 2px;
  overflow: hidden;
  background: rgba(147, 167, 184, 0.16);
}

.read-progress__bar {
  display: block;
  height: 100%;
  width: 0;
  background-image: linear-gradient(90deg, var(--c-green), var(--c-cyan));
  transition: width 0.12s linear;
}

/* 6 页脚 ------------------------------------------------------------------ */
.wp-footer {
  position: relative;
  margin-top: clamp(56px, 8vw, 120px);
  color: var(--c-paper);
  background-image: linear-gradient(180deg, rgba(18, 63, 51, 0.55) 0%, rgba(10, 24, 38, 0.96) 42%, #08131E 100%);
  border-top: 1px solid var(--c-line);
}

.wp-footer::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 0;
  width: min(38%, 420px);
  height: 3px;
  background-image: linear-gradient(90deg, var(--c-green), var(--c-cyan), transparent);
  transform: skewX(-28deg);
  transform-origin: left bottom;
  pointer-events: none;
}

.wp-footer__inner {
  display: grid;
  grid-template-columns: minmax(220px, 0.9fr) minmax(0, 2fr);
  gap: clamp(28px, 4vw, 64px);
  align-items: start;
  width: 100%;
  max-width: var(--shell);
  margin-inline: auto;
  padding: clamp(40px, 5vw, 64px) var(--gutter) clamp(28px, 3vw, 40px);
}

.wp-footer__brandline {
  font-family: var(--font-display);
  font-size: clamp(20px, 2.4vw, 26px);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.25;
}

.wp-footer__tagline {
  margin-top: 10px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--c-paper);
}

.wp-footer__region {
  margin-top: 10px;
  max-width: 34ch;
  font-size: 13px;
  line-height: 1.8;
  color: var(--c-mist);
}

.wp-footer__cols {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(20px, 3vw, 40px);
}

.wp-footer__title {
  margin-bottom: 14px;
  font-family: var(--font-num);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.18em;
  color: var(--c-cyan);
}

.wp-footer__list { display: grid; gap: 10px; }

.wp-footer__list a {
  display: inline-block;
  font-size: 14.5px;
  color: var(--c-mist);
  transition: color 0.18s var(--ease), padding-left 0.18s var(--ease);
}

.wp-footer__list a:hover {
  color: var(--c-paper);
  padding-left: 4px;
}

.wp-footer__list a[aria-current="page"] { color: var(--c-green); }

.wp-footer__base {
  display: grid;
  gap: 12px;
  width: 100%;
  max-width: var(--shell);
  margin-inline: auto;
  padding: clamp(20px, 2.6vw, 30px) var(--gutter) clamp(28px, 3vw, 46px);
  border-top: 1px solid rgba(147, 167, 184, 0.16);
  font-size: 13px;
  color: var(--c-mist);
}

.wp-footer__contact { display: grid; gap: 6px; }

.wp-footer__contact-row {
  font-variant-numeric: tabular-nums;
  line-height: 1.85;
  word-break: break-word;
}

.wp-footer__legal {
  font-family: var(--font-num);
  font-size: 12.5px;
  letter-spacing: 0.04em;
  color: rgba(147, 167, 184, 0.85);
}

/* 7 响应式与动效偏好 ------------------------------------------------------ */
@media (max-width: 1180px) {
  .brand__domain { display: none; }
  .wp-nav__link { padding: 8px 10px; font-size: 13.5px; }
  .wp-nav__link[aria-current="page"]::after { left: 10px; right: 10px; }
  .wp-header__meta .btn { display: none; }
}

@media (max-width: 1023px) {
  .wp-header__meta { display: none; }
  .nav-toggle { display: inline-flex; margin-left: auto; }

  .wp-nav {
    position: absolute;
    left: 0;
    right: 0;
    top: 100%;
    display: block;
    max-height: calc(100vh - 64px);
    overflow-y: auto;
    padding: 10px var(--gutter) 22px;
    background-image: linear-gradient(180deg, rgba(10, 24, 38, 0.99), rgba(10, 24, 38, 0.96));
    -webkit-backdrop-filter: blur(18px);
    backdrop-filter: blur(18px);
    border-bottom: 1px solid var(--c-line);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: opacity 0.2s var(--ease), transform 0.2s var(--ease), visibility 0.2s;
  }

  .wp-header[data-open] .wp-nav {
    opacity: 1;
    visibility: visible;
    transform: none;
  }

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

  .wp-nav__link {
    padding: 15px 4px;
    font-size: 16px;
    border-radius: 0;
    border-bottom: 1px solid rgba(147, 167, 184, 0.14);
  }

  .wp-nav__link[aria-current="page"]::after {
    left: 4px;
    right: auto;
    width: 46px;
    bottom: 8px;
  }

  .wp-nav__link[aria-current="page"]::before {
    right: 4px;
  }

  .skip-link { left: 12px; }
}

@media (max-width: 980px) {
  .grid--4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 860px) {
  .wp-footer__inner { grid-template-columns: minmax(0, 1fr); }
}

@media (max-width: 760px) {
  .grid--2,
  .grid--3,
  .grid--4 { grid-template-columns: minmax(0, 1fr); }

  .breadcrumb { padding-block: 14px; }
}

@media (max-width: 560px) {
  .wp-footer__cols { grid-template-columns: minmax(0, 1fr); }
  .wp-footer__region { max-width: none; }
  .brand__name { font-size: 17px; }
  .status-chip { display: none; }
}

@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;
  }

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

  .wp-header__inner,
  .read-progress__bar,
  .brand__mark { transition: none; }
}