:root {
  --brand: #0c6b4d;
  --brand-dark: #084c37;
  --brand-light: #e8f5ef;
  --ink: #12201a;
  --muted: #4a5c54;
  --line: #d5e3db;
  --bg: #f7faf8;
  --white: #ffffff;
  --accent: #c9a227;
  --danger: #b42318;
  --radius: 12px;
  --shadow: 0 12px 40px rgba(8, 76, 55, 0.1);
  --max: 1120px;
  --header-h: 72px;
  --font-display: "ZCOOL XiaoWei", "Noto Serif SC", serif;
  --font-body: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--ink);
  background:
    radial-gradient(1200px 500px at 10% -10%, rgba(12, 107, 77, 0.12), transparent 60%),
    radial-gradient(900px 400px at 100% 0%, rgba(201, 162, 39, 0.1), transparent 55%),
    linear-gradient(180deg, #f3f8f5 0%, var(--bg) 28%, #eef5f1 100%);
  line-height: 1.75;
  font-size: 16px;
}

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

a {
  color: var(--brand);
  text-decoration: none;
  transition: color 0.2s ease;
}

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

h1,
h2,
h3,
h4 {
  font-family: var(--font-display);
  line-height: 1.35;
  color: var(--ink);
  margin: 0 0 0.75rem;
  font-weight: 400;
}

h1 {
  font-size: clamp(1.9rem, 4vw, 2.75rem);
}

h2 {
  font-size: clamp(1.45rem, 3vw, 2rem);
}

h3 {
  font-size: 1.25rem;
}

p {
  margin: 0 0 1rem;
  color: var(--muted);
}

ul,
ol {
  color: var(--muted);
  padding-left: 1.25rem;
}

li {
  margin-bottom: 0.45rem;
}

.container {
  width: min(100% - 2rem, var(--max));
  margin-inline: auto;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  height: var(--header-h);
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(213, 227, 219, 0.9);
}

.header-inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  color: var(--ink);
  flex-shrink: 0;
}

.logo img {
  width: 42px;
  height: 42px;
  border-radius: 10px;
  object-fit: cover;
}

.logo-text {
  font-family: var(--font-display);
  font-size: 1.35rem;
  letter-spacing: 0.02em;
}

.logo-text span {
  color: var(--brand);
}

.nav {
  display: flex;
  align-items: center;
  gap: 1.35rem;
}

.nav a {
  color: var(--ink);
  font-size: 0.95rem;
  font-weight: 500;
  position: relative;
}

.nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -4px;
  width: 0;
  height: 2px;
  background: var(--brand);
  transition: width 0.2s ease;
}

.nav a:hover,
.nav a.active {
  color: var(--brand);
}

.nav a:hover::after,
.nav a.active::after {
  width: 100%;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  min-height: 42px;
  padding: 0.55rem 1.15rem;
  border-radius: 999px;
  border: 1px solid transparent;
  font-family: var(--font-body);
  font-size: 0.92rem;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn-primary {
  background: linear-gradient(135deg, var(--brand) 0%, var(--brand-dark) 100%);
  color: var(--white);
  box-shadow: 0 8px 20px rgba(12, 107, 77, 0.25);
}

.btn-primary:hover {
  color: var(--white);
}

.btn-outline {
  background: transparent;
  border-color: var(--brand);
  color: var(--brand);
}

.btn-outline:hover {
  background: var(--brand-light);
  color: var(--brand-dark);
}

.btn-accent {
  background: linear-gradient(135deg, #d4b03a 0%, #a88416 100%);
  color: #1a1405;
  box-shadow: 0 8px 20px rgba(201, 162, 39, 0.28);
}

.btn-accent:hover {
  color: #1a1405;
}

.menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--white);
  cursor: pointer;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 5px;
  padding: 0;
}

.menu-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--ink);
  transition: transform 0.25s ease, opacity 0.25s ease;
}

.menu-toggle.is-open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.menu-toggle.is-open span:nth-child(2) {
  opacity: 0;
}

.menu-toggle.is-open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Hero */
.hero {
  position: relative;
  min-height: calc(100vh - var(--header-h));
  display: flex;
  align-items: center;
  overflow: hidden;
  color: var(--white);
}

.hero-bg {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(105deg, rgba(8, 30, 22, 0.88) 0%, rgba(8, 30, 22, 0.55) 48%, rgba(8, 30, 22, 0.35) 100%),
    url("/开云体育首页.jpg") center / cover no-repeat;
  transform: scale(1.04);
  animation: heroZoom 18s ease-in-out infinite alternate;
}

@keyframes heroZoom {
  from {
    transform: scale(1.02);
  }
  to {
    transform: scale(1.08);
  }
}

.hero-content {
  position: relative;
  z-index: 1;
  padding: 4.5rem 0 5rem;
  max-width: 720px;
  animation: fadeUp 0.9s ease both;
}

@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(24px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.hero-brand {
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 6vw, 3.6rem);
  margin-bottom: 0.6rem;
  letter-spacing: 0.04em;
}

.hero-brand span {
  color: #f0d56c;
}

.hero h1 {
  color: var(--white);
  margin-bottom: 1rem;
  font-size: clamp(1.35rem, 2.8vw, 1.85rem);
}

.hero p {
  color: rgba(255, 255, 255, 0.88);
  font-size: 1.05rem;
  max-width: 34rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.6rem;
}

/* Sections */
.section {
  padding: 4.5rem 0;
}

.section-alt {
  background: rgba(255, 255, 255, 0.55);
  border-block: 1px solid rgba(213, 227, 219, 0.7);
}

.section-head {
  margin-bottom: 2rem;
  max-width: 720px;
}

.section-head p {
  margin-bottom: 0;
}

.eyebrow {
  display: inline-block;
  color: var(--brand);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  margin-bottom: 0.5rem;
}

.lead {
  font-size: 1.05rem;
  color: var(--muted);
}

/* Feature grid */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
}

.feature-item {
  padding: 0.25rem 0 0.5rem;
  animation: fadeUp 0.7s ease both;
}

.feature-item:nth-child(2) {
  animation-delay: 0.08s;
}

.feature-item:nth-child(3) {
  animation-delay: 0.16s;
}

.feature-item h3 {
  margin-bottom: 0.5rem;
}

.feature-item h3 a {
  color: inherit;
}

.feature-item h3 a:hover {
  color: var(--brand);
}

/* Media rows */
.media-row {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 2.5rem;
  align-items: center;
}

.media-row.reverse {
  grid-template-columns: 0.95fr 1.05fr;
}

.media-row.reverse .media-copy {
  order: 2;
}

.media-row.reverse .media-visual {
  order: 1;
}

.media-visual img {
  width: 100%;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.media-copy h2 a {
  color: inherit;
}

.media-copy h2 a:hover {
  color: var(--brand);
}

/* Category strip */
.cat-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 0.85rem;
}

.cat-item {
  text-align: center;
}

.cat-item img {
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
  border-radius: 14px;
  box-shadow: var(--shadow);
  transition: transform 0.3s ease;
}

.cat-item:hover img {
  transform: translateY(-4px) scale(1.02);
}

.cat-item span {
  display: block;
  margin-top: 0.55rem;
  font-weight: 600;
  color: var(--ink);
  font-size: 0.92rem;
}

/* Partners */
.partner-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
}

.partner-item {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 0.85rem;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 110px;
}

.partner-item img {
  max-height: 72px;
  width: auto;
  object-fit: contain;
}

/* Promo grid */
.promo-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}

.promo-grid img {
  width: 100%;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  transition: transform 0.3s ease;
}

.promo-grid a:hover img {
  transform: scale(1.02);
}

/* Content prose */
.prose {
  max-width: 820px;
}

.prose h2,
.prose h3 {
  margin-top: 2rem;
}

.prose h2:first-child,
.prose h3:first-child {
  margin-top: 0;
}

.prose a {
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.content-block {
  margin-bottom: 2rem;
}

.steps {
  counter-reset: step;
  list-style: none;
  padding: 0;
  margin: 1.25rem 0;
}

.steps li {
  counter-increment: step;
  position: relative;
  padding: 1rem 1rem 1rem 3.4rem;
  margin-bottom: 0.75rem;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.steps li::before {
  content: counter(step);
  position: absolute;
  left: 0.9rem;
  top: 50%;
  transform: translateY(-50%);
  width: 1.7rem;
  height: 1.7rem;
  border-radius: 50%;
  background: var(--brand);
  color: var(--white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  font-weight: 700;
}

.faq details {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 0.95rem 1.1rem;
  margin-bottom: 0.7rem;
}

.faq summary {
  cursor: pointer;
  font-weight: 650;
  color: var(--ink);
}

.faq details[open] summary {
  color: var(--brand);
  margin-bottom: 0.55rem;
}

.faq p {
  margin-bottom: 0;
}

/* Auth pages */
.auth-wrap {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2.5rem;
  align-items: start;
  padding: 3.5rem 0 4.5rem;
}

.auth-panel {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 1.75rem;
  box-shadow: var(--shadow);
}

.auth-panel h1 {
  margin-bottom: 0.35rem;
}

.form-group {
  margin-bottom: 1rem;
}

.form-group label {
  display: block;
  margin-bottom: 0.35rem;
  font-weight: 600;
  font-size: 0.92rem;
}

.form-group input {
  width: 100%;
  min-height: 46px;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 0.65rem 0.85rem;
  font: inherit;
  background: #fbfdfc;
}

.form-group input:focus {
  outline: 2px solid rgba(12, 107, 77, 0.25);
  border-color: var(--brand);
}

.form-note {
  font-size: 0.9rem;
  margin-top: 0.85rem;
}

.auth-visual img {
  width: 100%;
  border-radius: 16px;
  box-shadow: var(--shadow);
}

.auth-seo {
  margin-top: 1.5rem;
}

/* Legal / inner pages */
.page-hero {
  padding: 3rem 0 1.5rem;
}

.page-hero h1 {
  margin-bottom: 0.5rem;
}

.breadcrumb {
  font-size: 0.9rem;
  color: var(--muted);
  margin-bottom: 0.85rem;
}

.breadcrumb a {
  color: var(--brand);
}

.legal-content {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 1.75rem 1.5rem 2rem;
  margin-bottom: 3.5rem;
  box-shadow: 0 8px 28px rgba(8, 76, 55, 0.06);
}

.legal-content h2 {
  margin-top: 1.75rem;
}

.legal-content h2:first-child {
  margin-top: 0;
}

/* Error pages */
.error-page {
  min-height: calc(100vh - var(--header-h) - 180px);
  display: flex;
  align-items: center;
  text-align: center;
  padding: 4rem 0;
}

.error-code {
  font-family: var(--font-display);
  font-size: clamp(4rem, 12vw, 7rem);
  color: var(--brand);
  line-height: 1;
  margin-bottom: 0.5rem;
}

/* CTA band */
.cta-band {
  background:
    linear-gradient(120deg, rgba(8, 76, 55, 0.94), rgba(12, 107, 77, 0.88)),
    url("/足球.jpg") center / cover no-repeat;
  color: var(--white);
  padding: 3.5rem 0;
  text-align: center;
}

.cta-band h2 {
  color: var(--white);
}

.cta-band p {
  color: rgba(255, 255, 255, 0.88);
  max-width: 36rem;
  margin: 0 auto 1.35rem;
}

.cta-actions {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0.75rem;
}

/* Footer */
.site-footer {
  background: #0b1a14;
  color: rgba(255, 255, 255, 0.78);
  padding: 3rem 0 1.5rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 2rem;
  margin-bottom: 2rem;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  color: var(--white);
  margin-bottom: 0.85rem;
}

.footer-brand img {
  width: 40px;
  height: 40px;
  border-radius: 10px;
}

.footer-brand strong {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 400;
}

.site-footer h4 {
  color: var(--white);
  margin-bottom: 0.85rem;
  font-size: 1.05rem;
}

.site-footer ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.site-footer li {
  margin-bottom: 0.45rem;
}

.site-footer a {
  color: rgba(255, 255, 255, 0.78);
}

.site-footer a:hover {
  color: #f0d56c;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  padding-top: 1.1rem;
  font-size: 0.88rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.25rem;
  justify-content: space-between;
}

.related-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem 1rem;
  margin-top: 1.25rem;
  padding-top: 1rem;
  border-top: 1px dashed var(--line);
}

.related-links a {
  font-size: 0.92rem;
  font-weight: 600;
}

/* Mobile nav drawer */
@media (max-width: 960px) {
  .menu-toggle {
    display: inline-flex;
  }

  .nav {
    position: fixed;
    inset: var(--header-h) 0 auto 0;
    background: rgba(255, 255, 255, 0.98);
    border-bottom: 1px solid var(--line);
    flex-direction: column;
    align-items: stretch;
    padding: 1rem;
    gap: 0;
    transform: translateY(-120%);
    opacity: 0;
    pointer-events: none;
    transition: transform 0.28s ease, opacity 0.28s ease;
    box-shadow: var(--shadow);
  }

  .nav.is-open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .nav a {
    padding: 0.85rem 0.5rem;
    border-bottom: 1px solid var(--line);
  }

  .nav a::after {
    display: none;
  }

  .header-actions .btn-outline {
    display: none;
  }

  .feature-grid,
  .promo-grid,
  .partner-grid {
    grid-template-columns: 1fr 1fr;
  }

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

  .media-row,
  .media-row.reverse,
  .auth-wrap,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .media-row.reverse .media-copy,
  .media-row.reverse .media-visual {
    order: initial;
  }

  .auth-visual {
    order: -1;
  }
}

@media (max-width: 640px) {
  .feature-grid,
  .promo-grid,
  .partner-grid,
  .cat-grid {
    grid-template-columns: 1fr;
  }

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

  .hero-actions .btn,
  .cta-actions .btn {
    width: 100%;
  }

  .footer-bottom {
    flex-direction: column;
  }

  .legal-content {
    padding: 1.25rem 1rem 1.5rem;
  }
}

/* Top ads bar */
.site-ads-wrap {
  position: relative;
  z-index: 5;
  background: rgba(255, 255, 255, 0.96);
  border-bottom: 1px solid var(--line);
  padding: 0.55rem 0 0.35rem;
}

#ads {
  display: flex;
  justify-content: center;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 0.35rem 0.5rem;
  background: transparent;
  margin: 0;
  min-height: 0;
}

#ads > div {
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 70px;
  box-sizing: border-box;
}

#ads figure {
  margin: 0;
}

#ads img {
  width: 65px;
  height: 65px;
  object-fit: cover;
  border-radius: 18px;
  box-shadow: 0 6px 18px rgba(24, 24, 24, 0.12);
  transition: transform 180ms ease, box-shadow 180ms ease;
  display: block;
  border: none;
  background: linear-gradient(135deg, #fff, #fff);
}

#ads a {
  display: inline-block;
  text-decoration: none;
  border-radius: 15px;
}

#ads img:hover {
  transform: translateY(-4px) scale(1.04);
  box-shadow: 0 10px 24px rgba(24, 24, 24, 0.18);
}

#ads figcaption,
#ads .caption {
  height: 15px;
  margin-top: 4px;
  font-size: 11px;
  color: #666;
  text-align: center;
  max-width: 100px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

@media (max-width: 640px) {
  #ads {
    gap: 0.25rem 0.35rem;
  }

  #ads > div {
    width: 64px;
  }

  #ads img {
    width: 58px;
    height: 58px;
    border-radius: 16px;
  }
}