/* ============ 皇冠足球 共享样式 /assets/site.css ============ */

/* ---------- CSS 变量 ---------- */
:root {
  --color-cream: #F7F3E8;
  --color-green: #0B3D2E;
  --color-green-light: #DCE8DF;
  --color-gold: #C9A227;
  --color-gold-dark: #9C6B1E;
  --color-black: #1F1A17;
  --color-red: #D6402A;
  --color-yellow: #F2C14E;
  --color-gray: #5A6068;
  --color-white: #FFFFFF;

  --font-heading: 'Archivo Black', 'PingFang SC Heavy', 'Microsoft YaHei', sans-serif;
  --font-body: 'SFMono-Regular', Consolas, Menlo, monospace;

  --container-max: 75rem;
}

/* ---------- Reset ---------- */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

body {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.5;
  font-variant-numeric: tabular-nums;
  color: var(--color-black);
  background-color: var(--color-cream);
  background-image:
    linear-gradient(rgba(11, 61, 46, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(11, 61, 46, 0.035) 1px, transparent 1px);
  background-size: 28px 28px;
  min-height: 100vh;
}

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

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

ul,
ol {
  list-style: none;
}

a {
  color: var(--color-green);
  text-decoration-thickness: 2px;
  text-underline-offset: 3px;
}

a:hover {
  color: var(--color-gold-dark);
}

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

.site-header :focus-visible,
.site-footer :focus-visible {
  outline-color: var(--color-gold);
}

::selection {
  background-color: var(--color-gold);
  color: var(--color-black);
}

/* ---------- 基础排版 ---------- */
h1,
h2,
h3,
h4 {
  font-family: var(--font-heading);
  line-height: 1.15;
  color: var(--color-black);
  overflow-wrap: break-word;
}

h1 {
  font-size: 2.5rem;
  line-height: 2.75rem;
}

h2 {
  font-size: 1.5rem;
  line-height: 1.75rem;
}

h3 {
  font-size: 1.125rem;
  line-height: 1.5rem;
}

h4 {
  font-size: 1rem;
  line-height: 1.5rem;
}

p {
  margin-block: 0 1rem;
  line-height: 1.6;
}

small {
  font-size: 0.8125rem;
}

#main-content {
  outline: none;
}

/* ---------- 通用工具 ---------- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: 1.25rem;
}

@media (min-width: 64rem) {
  .container {
    padding-inline: 2rem;
  }
}

.main-content {
  margin-inline: auto;
  max-width: var(--container-max);
  padding: 2rem 1.25rem 3rem;
  min-height: 65vh;
}

@media (min-width: 64rem) {
  .main-content {
    padding: 3rem 2rem 4rem;
  }
}

.grid {
  display: grid;
  gap: 1.5rem;
}

.grid--2,
.grid--3 {
  grid-template-columns: 1fr;
}

@media (min-width: 48rem) {
  .grid--2 {
    grid-template-columns: 1fr 1fr;
  }

  .grid--3 {
    grid-template-columns: 1fr 1fr;
  }
}

@media (min-width: 64rem) {
  .grid--3 {
    grid-template-columns: 1fr 1fr 1fr;
  }
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.625rem 1.25rem;
  font-family: var(--font-body);
  font-size: 0.875rem;
  line-height: 1.25rem;
  font-weight: bold;
  color: var(--color-white);
  background-color: var(--color-green);
  border: 2px solid var(--color-green);
  border-radius: 2px;
  text-decoration: none;
  cursor: pointer;
  transition: background-color 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}

.btn:hover {
  background-color: var(--color-gold-dark);
  border-color: var(--color-gold-dark);
  color: var(--color-white);
}

.btn--gold {
  background-color: var(--color-gold);
  border-color: var(--color-gold);
  color: var(--color-black);
}

.btn--gold:hover {
  background-color: var(--color-gold-dark);
  border-color: var(--color-gold-dark);
  color: var(--color-white);
}

.btn--ghost {
  background-color: transparent;
  border-color: var(--color-green);
  color: var(--color-green);
}

.btn--ghost:hover {
  background-color: var(--color-green);
  color: var(--color-white);
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 0.375rem;
  align-items: center;
  font-family: var(--font-body);
  font-size: 0.8125rem;
  line-height: 1.25rem;
  color: var(--color-gray);
  padding-bottom: 0.75rem;
  margin-bottom: 1.5rem;
  border-bottom: 1px solid var(--color-green-light);
}

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

.breadcrumb a:hover {
  color: var(--color-gold-dark);
  text-decoration: underline;
}

.section-heading {
  display: inline-flex;
  align-items: center;
  gap: 0.625rem;
  font-family: var(--font-heading);
  font-size: 1.5rem;
  line-height: 1.75rem;
  color: var(--color-black);
  margin-bottom: 1rem;
}

.section-heading::before {
  content: '';
  display: inline-block;
  width: 0.5rem;
  height: 1.5rem;
  background-color: var(--color-gold);
  clip-path: polygon(0 0, 100% 0, calc(100% - 4px) 100%, 0 100%);
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  padding: 0.125rem 0.5rem;
  font-family: var(--font-body);
  font-size: 0.75rem;
  line-height: 1.25rem;
  border: 1px solid currentColor;
  border-radius: 2px;
}

.tag--red {
  color: var(--color-red);
  background: rgba(214, 64, 42, 0.08);
}

.tag--yellow {
  color: var(--color-gold-dark);
  background: rgba(242, 193, 78, 0.25);
}

.tag--green {
  color: var(--color-green);
  background: var(--color-green-light);
}

.card-mark {
  display: inline-block;
  width: 0.875rem;
  height: 1.125rem;
  border: 1px solid rgba(0, 0, 0, 0.4);
  border-radius: 2px;
  vertical-align: middle;
}

.card-mark--red {
  background-color: var(--color-red);
}

.card-mark--yellow {
  background-color: var(--color-yellow);
}

.media-frame {
  display: block;
  padding: 0.5rem;
  background: var(--color-green-light);
  border: 1px solid var(--color-black);
}

.media-frame img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  background: var(--color-cream);
}

/* ---------- 跳转链接 ---------- */
.skip-link {
  position: absolute;
  top: 0;
  left: 0;
  z-index: 1500;
  padding: 0.75rem 1.25rem;
  background-color: var(--color-gold);
  color: var(--color-black);
  font-family: var(--font-body);
  font-size: 0.875rem;
  font-weight: bold;
  text-decoration: none;
  border-bottom-right-radius: 4px;
  transform: translateY(-150%);
  transition: transform 0.2s ease;
}

.skip-link:focus {
  transform: translateY(0);
}

/* ---------- 共享头部 ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: var(--color-green);
  color: var(--color-white);
  border-bottom: 3px solid var(--color-gold);
}

.header-wrap {
  display: flex;
  flex-direction: column;
}

.header-progress {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background-color: rgba(255, 255, 255, 0.12);
  z-index: 2;
  pointer-events: none;
}

.progress-fill {
  display: block;
  width: 0;
  height: 100%;
  background: linear-gradient(90deg, var(--color-gold), var(--color-yellow) 80%, var(--color-red));
  transition: width 0.1s linear;
}

.header-topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding-top: 0.5rem;
  font-size: 0.75rem;
  line-height: 1.25rem;
  letter-spacing: 0.04em;
  color: rgba(255, 255, 255, 0.65);
}

.header-domain {
  text-transform: uppercase;
}

.header-quick {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  background: rgba(201, 162, 39, 0.14);
  border: 1px solid rgba(201, 162, 39, 0.3);
  border-radius: 999px;
  padding: 0.125rem 0.625rem;
  color: rgba(255, 255, 255, 0.9);
}

.quick-label {
  color: var(--color-yellow);
}

.quick-sep {
  color: rgba(255, 255, 255, 0.45);
}

.header-main {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding-block: 0.75rem;
}

.brand-lockup {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  flex-shrink: 0;
}

.brand-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 2.5rem;
  height: 2.5rem;
  padding-inline: 0.375rem;
  background-color: var(--color-gold);
  color: var(--color-black);
  font-family: var(--font-heading);
  font-size: 0.9375rem;
  font-weight: bold;
  letter-spacing: 0.04em;
  clip-path: polygon(0 0, 100% 0, calc(100% - 8px) 100%, 0 100%);
  transition: background-color 0.2s ease;
}

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

.brand-name {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  line-height: 1.25;
  font-weight: bold;
  color: var(--color-white);
  letter-spacing: 0.08em;
  transition: color 0.2s ease;
}

.brand-tagline {
  font-family: var(--font-body);
  font-size: 0.6875rem;
  line-height: 1.25rem;
  letter-spacing: 0.15em;
  color: var(--color-gold);
  text-transform: uppercase;
}

.brand-lockup:hover .brand-name {
  color: var(--color-gold);
}

.brand-lockup:hover .brand-badge {
  background-color: var(--color-yellow);
}

.site-nav {
  margin-left: auto;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 0.125rem;
}

.nav-item {
  position: relative;
}

.nav-link {
  display: inline-flex;
  align-items: baseline;
  gap: 0.375rem;
  padding: 0.5rem 0.625rem;
  font-family: var(--font-body);
  font-size: 0.875rem;
  line-height: 1.25rem;
  letter-spacing: 0.03em;
  color: rgba(255, 255, 255, 0.85);
  text-decoration: none;
  border: 1px solid transparent;
  transition: color 0.15s ease, background-color 0.15s ease, border-color 0.15s ease;
}

.nav-num {
  font-size: 0.6875rem;
  line-height: 1.25rem;
  color: var(--color-gold);
}

.nav-cn {
  letter-spacing: 0.06em;
}

.nav-link:hover {
  color: var(--color-yellow);
  background-color: rgba(255, 255, 255, 0.06);
}

.nav-link[aria-current="page"] {
  color: var(--color-gold);
  background-color: rgba(201, 162, 39, 0.14);
  border-color: rgba(201, 162, 39, 0.4);
}

.nav-toggle {
  display: none;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 0.75rem;
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.35);
  border-radius: 2px;
  color: var(--color-white);
  font-family: var(--font-body);
  font-size: 0.8125rem;
  line-height: 1.25rem;
  cursor: pointer;
  transition: border-color 0.15s ease, color 0.15s ease, background-color 0.15s ease;
}

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

.nav-toggle[aria-expanded="true"] {
  background-color: rgba(201, 162, 39, 0.16);
  border-color: var(--color-gold);
  color: var(--color-gold);
}

.nav-toggle-bars {
  display: inline-flex;
  flex-direction: column;
  gap: 3px;
  width: 0.875rem;
}

.toggle-bar {
  display: block;
  height: 2px;
  width: 100%;
  background-color: currentColor;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.nav-toggle[aria-expanded="true"] .toggle-bar:nth-child(1) {
  transform: translateY(5px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .toggle-bar:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] .toggle-bar:nth-child(3) {
  transform: translateY(-5px) rotate(-45deg);
}

.nav-toggle-text {
  font-size: 0.8125rem;
  line-height: 1.25rem;
}

/* ---------- 共享尾部 ---------- */
.site-footer {
  margin-top: 4rem;
  position: relative;
  background-color: var(--color-green);
  color: var(--color-cream);
  border-top: 3px solid var(--color-gold);
}

.footer-pitch {
  height: 6px;
  background: repeating-linear-gradient(90deg, var(--color-gold) 0 14px, transparent 14px 18px);
  opacity: 0.55;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.7fr 1fr 1fr 1.5fr;
  gap: 2rem;
  padding-block: 2.75rem;
}

.footer-brand-name {
  font-family: var(--font-heading);
  font-size: 1.375rem;
  line-height: 1.3;
  color: var(--color-white);
  margin-bottom: 0.5rem;
}

.footer-tagline {
  font-family: var(--font-body);
  font-size: 0.8125rem;
  line-height: 1.25rem;
  letter-spacing: 0.1em;
  color: var(--color-gold);
  margin-bottom: 1rem;
}

.footer-trust {
  font-size: 0.75rem;
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.6);
  border-left: 3px solid var(--color-gold);
  padding-left: 0.75rem;
  max-width: 20rem;
}

.footer-heading {
  font-family: var(--font-heading);
  font-size: 0.875rem;
  line-height: 1.25rem;
  color: var(--color-gold);
  letter-spacing: 0.08em;
  margin-bottom: 0.875rem;
  padding-bottom: 0.375rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.2);
}

.footer-links li + li {
  margin-top: 0.375rem;
}

.footer-links a {
  display: inline-block;
  padding: 0.125rem 0;
  font-size: 0.8125rem;
  line-height: 1.4;
  color: rgba(255, 255, 255, 0.8);
  text-decoration: none;
}

.footer-links a:hover {
  color: var(--color-gold);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.footer-contact li {
  font-size: 0.8125rem;
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.75);
  padding: 0.1rem 0;
}

.footer-contact li + li {
  margin-top: 0.25rem;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.18);
  padding-block: 1rem;
}

.footer-bottom-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.375rem 1.5rem;
  font-size: 0.75rem;
  line-height: 1.5;
  color: rgba(255, 255, 255, 0.55);
}

.footer-icp {
  font-style: normal;
  letter-spacing: 0.04em;
}

/* ---------- 返回顶部 ---------- */
.back-top {
  position: fixed;
  right: 1rem;
  bottom: 1rem;
  z-index: 90;
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  padding: 0.5rem 0.875rem;
  background-color: var(--color-green);
  color: var(--color-gold);
  border: 2px solid var(--color-gold);
  border-radius: 2px;
  font-family: var(--font-body);
  font-size: 0.8125rem;
  line-height: 1.25rem;
  cursor: pointer;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease, background-color 0.15s ease, color 0.15s ease;
}

.back-top[data-visible] {
  opacity: 1;
  pointer-events: auto;
}

.back-top:hover {
  background-color: var(--color-gold);
  color: var(--color-black);
}

/* ---------- 响应式 ---------- */
@media (max-width: 63.99rem) {
  .nav-toggle {
    display: inline-flex;
  }

  .site-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    margin-left: 0;
    background-color: var(--color-green);
    border-top: 2px solid var(--color-gold);
    border-bottom: 4px solid var(--color-gold);
    box-shadow: 0 0.75rem 1.5rem rgba(15, 30, 20, 0.35);
  }

  .site-nav[data-open] {
    display: block;
  }

  .nav-list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 0.375rem;
  }

  .nav-item {
    width: 100%;
  }

  .nav-link {
    display: flex;
    width: 100%;
    align-items: baseline;
    padding: 0.625rem 0.875rem;
    border: none;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  }

  .nav-link[aria-current="page"] {
    background-color: rgba(201, 162, 39, 0.16);
    border-left: 4px solid var(--color-gold);
  }

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

  .footer-brand-block {
    grid-column: 1 / -1;
  }
}

@media (max-width: 47.99rem) {
  .header-quick {
    display: none;
  }

  .header-topbar {
    padding-top: 0.25rem;
  }

  .header-main {
    padding-block: 0.5rem;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 1.75rem;
    padding-block: 2rem;
  }

  .footer-brand-block {
    grid-column: auto;
  }
}

/* ---------- 减少动态效果 ---------- */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    transition: none !important;
    animation: none !important;
  }
}