/* ============================================================
   风云体育 Fengyun Sports — 全站共享样式 /assets/site.css
   ============================================================ */

/* ---------- 设计变量 ---------- */
:root {
  --c-deep: #0A192F;
  --c-deep-2: #112240;
  --c-deep-3: #1D2D50;
  --c-cream: #F5F0E8;
  --c-cream-2: #EDE6D8;
  --c-stone: #4A5568;
  --c-moss: #5A7D5A;
  --c-terracotta: #C47A5A;
  --c-orange: #FF6B35;
  --c-lime: #A3E635;
  --c-blue: #63B3ED;
  --c-ink: #1A202C;
  --c-white: #FFFFFF;

  --font-display: "Anton", "Impact", "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-body: "Inter", "Noto Sans SC", "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  --font-mono: "SF Mono", "Cascadia Code", "Roboto Mono", Consolas, "Lucida Console", monospace;

  --content-width: 1280px;
  --radius-lg: 24px;
  --radius-md: 14px;
  --radius-pill: 999px;
  --header-h: 76px;

  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
}

/* ---------- 重置与基础 ---------- */
*,
*::before,
*::after {
  box-sizing: border-box;
}

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

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: clamp(1rem, 1.5vw, 1.125rem);
  line-height: 1.75;
  color: var(--c-ink);
  background: var(--c-cream);
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
  margin: 0 0 0.5em;
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.12;
  color: var(--c-deep);
  letter-spacing: 0.01em;
}

p {
  margin: 0 0 1em;
}

ul, ol {
  margin: 0 0 1em;
  padding-left: 1.4em;
}

a {
  color: var(--c-blue);
}

a:hover {
  color: var(--c-orange);
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

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

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

[hidden] {
  display: none !important;
}

/* ---------- 容器 ---------- */
.container {
  width: 100%;
  max-width: var(--content-width);
  margin-inline: auto;
  padding-inline: clamp(16px, 4vw, 32px);
}

/* ---------- 跳过链接 ---------- */
.skip-link {
  position: fixed;
  top: -80px;
  left: 20px;
  z-index: 300;
  padding: 12px 22px;
  border-radius: var(--radius-pill);
  background: var(--c-orange);
  color: var(--c-deep);
  font-weight: 700;
  text-decoration: none;
  box-shadow: 0 10px 28px rgba(255, 107, 53, 0.4);
  transition: top 0.25s var(--ease-out);
}

.skip-link:focus {
  top: 16px;
}

/* ---------- 站点头部 ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--c-deep);
  overflow: hidden;
}

.site-header::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  background: repeating-linear-gradient(-45deg, rgba(255,255,255,0.022) 0 8px, transparent 8px 24px);
  pointer-events: none;
}

.site-header__strip {
  position: relative;
  z-index: 2;
  height: 4px;
  background: linear-gradient(90deg, var(--c-lime) 0%, var(--c-deep-3) 35%, var(--c-orange) 100%);
}

.site-header__main {
  position: relative;
  z-index: 2;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 20px;
  min-height: var(--header-h);
  padding-top: 10px;
  padding-bottom: 10px;
}

/* 品牌标识 */
.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
  text-decoration: none;
  color: var(--c-white);
}

.brand:hover {
  color: var(--c-white);
}

.brand__mark {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  flex-shrink: 0;
  border-radius: 10px;
  background: var(--c-orange);
  transform: rotate(45deg);
  box-shadow: 3px 3px 0 rgba(163, 230, 53, 0.8);
}

.brand__mark-core {
  width: 13px;
  height: 13px;
  background: var(--c-deep);
  clip-path: polygon(50% 0%, 100% 50%, 50% 100%, 0% 50%);
  transform: rotate(-45deg);
}

.brand__copy {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}

.brand__cn {
  font-family: var(--font-display);
  font-size: 1.3rem;
  letter-spacing: 0.05em;
  color: var(--c-white);
}

.brand__en {
  margin-top: 3px;
  font-family: var(--font-mono);
  font-size: 0.52rem;
  font-weight: 600;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--c-lime);
}

/* 头部状态区 */
.site-header__meta {
  flex-shrink: 0;
  margin-left: 20px;
}

.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 14px;
  border: 1px solid rgba(163, 230, 53, 0.3);
  border-radius: var(--radius-pill);
  background: rgba(163, 230, 53, 0.07);
  white-space: nowrap;
}

.status-pill__dot {
  width: 7px;
  height: 7px;
  flex-shrink: 0;
  border-radius: 50%;
  background: var(--c-lime);
  animation: fengyun-pulse 2.2s ease-in-out infinite;
}

.status-pill__label {
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: rgba(245, 240, 232, 0.88);
}

@keyframes fengyun-pulse {
  0%, 100% {
    box-shadow: 0 0 0 0 rgba(163, 230, 53, 0.5);
  }
  50% {
    box-shadow: 0 0 0 7px rgba(163, 230, 53, 0);
  }
}

/* 主导航 */
.site-nav {
  margin-left: auto;
}

.site-nav__list {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 2px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.site-nav__item {
  margin: 0;
}

.site-nav__link {
  position: relative;
  display: inline-flex;
  align-items: baseline;
  gap: 7px;
  padding: 10px 13px;
  border-radius: var(--radius-pill);
  color: rgba(245, 240, 232, 0.78);
  font-size: 0.9rem;
  font-weight: 500;
  text-decoration: none;
  white-space: nowrap;
  transition: background 0.2s ease, color 0.2s ease;
}

.site-nav__link::after {
  content: "";
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: 6px;
  height: 2px;
  background: var(--c-lime);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 0.25s var(--ease-out);
}

.site-nav__idx {
  font-family: var(--font-mono);
  font-size: 0.64rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--c-orange);
  transform: translateY(1px);
}

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

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

.site-nav__link[aria-current="page"] {
  color: var(--c-white);
  background: rgba(163, 230, 53, 0.12);
}

/* 移动导航按钮 */
.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  padding: 0;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.04);
  cursor: pointer;
  flex-shrink: 0;
  margin-left: 2px;
}

.nav-toggle:hover {
  background: rgba(255, 255, 255, 0.1);
}

.nav-toggle__bar {
  display: block;
  width: 20px;
  height: 2px;
  margin: 5px auto;
  border-radius: 2px;
  background: var(--c-white);
  transition: transform 0.25s var(--ease-out), opacity 0.2s ease;
}

.nav-toggle[aria-expanded="true"] .nav-toggle__bar--top {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle__bar--mid {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] .nav-toggle__bar--bot {
  transform: translateY(-7px) rotate(-45deg);
}

/* 滚动进度条 */
.site-header__progress {
  position: absolute;
  left: 0;
  bottom: 0;
  z-index: 2;
  width: 100%;
  height: 3px;
  overflow: hidden;
  pointer-events: none;
}

.site-header__progress-bar {
  display: block;
  width: 0;
  height: 100%;
  background: linear-gradient(90deg, var(--c-lime), var(--c-orange));
  transition: width 0.12s linear;
}

/* 头部响应式 */
@media (max-width: 1080px) {
  .site-header__main {
    gap: 8px 14px;
  }

  .brand {
    margin-right: auto;
  }

  .site-header__meta {
    margin-left: 0;
  }

  .nav-toggle {
    display: block;
  }

  .site-nav {
    order: 8;
    flex-basis: 100%;
    display: none;
    margin: 4px 0 0;
    padding: 8px 8px 12px;
    border-radius: var(--radius-md);
    background: rgba(255, 255, 255, 0.02);
  }

  .site-nav[data-open] {
    display: block;
    max-height: 70vh;
    overflow-y: auto;
  }

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

  .site-nav__link {
    display: flex;
    align-items: center;
    border-radius: 12px;
    padding: 13px 14px;
    font-size: 1rem;
  }

  .site-nav__link::after {
    display: none;
  }

  .site-nav__idx {
    min-width: 34px;
  }
}

@media (max-width: 480px) {
  .status-pill {
    padding: 6px;
  }

  .status-pill__label {
    display: none;
  }
}

/* ---------- 网站页脚 ---------- */
.site-footer {
  position: relative;
  margin-top: 72px;
  background: var(--c-deep);
  color: rgba(245, 240, 232, 0.78);
  overflow: hidden;
}

.site-footer::after {
  content: "FENGYUN";
  position: absolute;
  right: -10px;
  bottom: 24px;
  z-index: 0;
  font-family: var(--font-display);
  font-size: clamp(4rem, 9vw, 8rem);
  line-height: 1;
  letter-spacing: 0.02em;
  color: rgba(255, 255, 255, 0.028);
  pointer-events: none;
}

.site-footer__bar {
  position: relative;
  z-index: 1;
  height: 4px;
  background: linear-gradient(90deg, var(--c-lime) 0%, var(--c-deep-3) 45%, var(--c-orange) 100%);
}

.site-footer__top {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1.5fr 0.8fr 0.8fr 1.1fr;
  gap: 36px 44px;
  padding-top: 56px;
  padding-bottom: 48px;
}

.site-footer__brand {
  max-width: 420px;
}

.brand--footer .brand__mark {
  box-shadow: 3px 3px 0 rgba(163, 230, 53, 0.55);
}

.site-footer__about {
  max-width: 40ch;
  margin-top: 20px;
  font-size: 0.92rem;
  line-height: 1.85;
  color: rgba(245, 240, 232, 0.62);
}

.site-footer__trust {
  margin-top: 16px;
  padding-left: 12px;
  border-left: 2px solid var(--c-orange);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.02em;
  line-height: 1.7;
  color: var(--c-lime);
}

.site-footer__nav {
  min-width: 0;
}

.footer-title {
  margin: 0 0 18px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--c-lime);
}

.footer-link-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.footer-link-list a {
  display: inline-block;
  color: rgba(245, 240, 232, 0.7);
  font-size: 0.9rem;
  text-decoration: none;
  transition: color 0.2s, transform 0.2s;
}

.footer-link-list a:hover {
  color: var(--c-orange);
  transform: translateX(4px);
}

.site-footer__contact {
  min-width: 0;
}

.footer-contact-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.footer-contact-list__item {
  display: flex;
  flex-direction: column;
  gap: 2px;
  font-size: 0.9rem;
  line-height: 1.5;
}

.footer-contact-list__key {
  font-family: var(--font-mono);
  font-size: 0.66rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--c-orange);
}

.site-footer__legal {
  position: relative;
  z-index: 1;
  border-top: 1px solid rgba(255, 255, 255, 0.07);
  background: rgba(4, 12, 24, 0.5);
}

.site-footer__legal-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 6px 24px;
  padding-top: 18px;
  padding-bottom: 18px;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  color: rgba(245, 240, 232, 0.45);
}

.site-footer__legal-inner p {
  margin: 0;
}

@media (max-width: 960px) {
  .site-footer__top {
    grid-template-columns: 1fr 1fr;
    gap: 32px 28px;
  }
}

@media (max-width: 620px) {
  .site-footer__top {
    grid-template-columns: 1fr;
    padding-top: 44px;
    padding-bottom: 36px;
  }

  .site-footer__legal-inner {
    flex-direction: column;
    align-items: flex-start;
  }
}

/* ---------- 返回顶部 ---------- */
.back-top {
  position: fixed;
  right: 22px;
  bottom: 22px;
  z-index: 80;
  display: grid;
  place-items: center;
  width: 48px;
  height: 48px;
  border: 1px solid rgba(163, 230, 53, 0.45);
  border-radius: 50%;
  background: var(--c-deep);
  color: var(--c-lime);
  cursor: pointer;
  box-shadow: 0 10px 28px rgba(10, 25, 47, 0.35);
  transition: background 0.2s, color 0.2s, border-color 0.2s, transform 0.2s;
}

.back-top:hover {
  background: var(--c-orange);
  border-color: var(--c-orange);
  color: var(--c-deep);
  transform: translateY(-3px);
}

.back-top__icon {
  width: 10px;
  height: 10px;
  border-top: 2px solid currentColor;
  border-left: 2px solid currentColor;
  transform: rotate(45deg);
  margin-top: 5px;
}

/* ---------- 排版辅助 ---------- */
.section-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--c-orange);
}

.section-eyebrow::before {
  content: "";
  width: 24px;
  height: 2px;
  background: var(--c-lime);
}

.section-title {
  margin: 10px 0 20px;
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 5vw, 3.8rem);
  line-height: 1.02;
  letter-spacing: 0.01em;
  color: var(--c-deep);
}

.section-title--light {
  color: var(--c-white);
}

.section-lead {
  max-width: 62ch;
  font-size: clamp(1.05rem, 1.8vw, 1.3rem);
  line-height: 1.7;
  color: var(--c-stone);
}

.section-lead--light {
  color: rgba(245, 240, 232, 0.85);
}

/* ---------- 面包屑 ---------- */
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0 0 20px;
  padding: 0;
  list-style: none;
  font-size: 0.84rem;
}

.breadcrumb li {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.breadcrumb li + li::before {
  content: "/";
  color: var(--c-stone);
  opacity: 0.5;
}

.breadcrumb a {
  color: var(--c-stone);
  text-decoration: none;
}

.breadcrumb a:hover {
  color: var(--c-orange);
}

.breadcrumb [aria-current="page"] {
  color: var(--c-deep);
  font-weight: 600;
}

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  border: 2px solid transparent;
  border-radius: var(--radius-pill);
  background: transparent;
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 700;
  line-height: 1;
  text-decoration: none;
  cursor: pointer;
  transition: background 0.2s, color 0.2s, border-color 0.2s, transform 0.2s;
}

.btn:active {
  transform: scale(0.97);
}

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

.btn--primary:hover {
  background: #e55a24;
  border-color: #e55a24;
  color: var(--c-deep);
}

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

.btn--outline:hover {
  background: var(--c-deep);
  border-color: var(--c-deep);
  color: var(--c-lime);
}

.btn--ghost {
  border-color: rgba(255, 255, 255, 0.24);
  color: var(--c-white);
}

.btn--ghost:hover {
  border-color: var(--c-lime);
  color: var(--c-lime);
  background: rgba(163, 230, 53, 0.06);
}

/* ---------- 网格 ---------- */
.grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 24px;
}

.grid__col-3 {
  grid-column: span 3;
}

.grid__col-4 {
  grid-column: span 4;
}

.grid__col-6 {
  grid-column: span 6;
}

.grid__col-8 {
  grid-column: span 8;
}

@media (max-width: 1023px) {
  .grid__col-3 {
    grid-column: span 6;
  }

  .grid__col-4 {
    grid-column: span 6;
  }

  .grid__col-6 {
    grid-column: span 12;
  }

  .grid__col-8 {
    grid-column: span 12;
  }
}

@media (max-width: 620px) {
  .grid__col-3,
  .grid__col-4 {
    grid-column: span 12;
  }
}

/* ---------- 卡片 ---------- */
.card {
  position: relative;
  padding: 28px;
  border: 1px solid rgba(26, 32, 44, 0.07);
  border-radius: var(--radius-lg);
  background: var(--c-white);
  transition: transform 0.25s var(--ease-out), box-shadow 0.25s var(--ease-out);
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: 0 16px 36px rgba(10, 25, 47, 0.12);
}

.card__title {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: 1.25rem;
}

/* ---------- 图片容器 ---------- */
.media-frame {
  position: relative;
  display: block;
  aspect-ratio: 16 / 9;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--c-deep-2);
}

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

.media-frame--tall {
  aspect-ratio: 3 / 4;
}

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

.media-frame--pattern {
  background-image:
    repeating-linear-gradient(-45deg, transparent 0 16px, rgba(255, 107, 53, 0.1) 16px 34px),
    linear-gradient(135deg, var(--c-deep) 0%, var(--c-deep-3) 60%, var(--c-deep-2) 100%);
}

.media-frame::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--c-lime), var(--c-orange));
  opacity: 0.9;
}

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

@media (max-width: 620px) {
  .media-frame--wide {
    aspect-ratio: 16 / 10;
  }

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

/* ---------- 无障碍与降级动效 ---------- */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  html {
    scroll-behavior: auto;
  }
}