/* ==========================================================
   每日大赛在线观看 — "竞技场编辑风" 视觉设计系统
   风格关键词：运动场弧线 / 编辑排版 / 暖色奶油基底
   ========================================================== */

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

html {
  scroll-behavior: smooth;
}

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

body {
  font-family: system-ui, 'PingFang SC', 'Microsoft YaHei', 'Segoe UI', sans-serif;
  overflow-x: hidden;
  background: #FBF7F1;
  color: #1E2836;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  counter-reset: section;
}

::selection {
  background: #F5B82E;
  color: #1E2836;
}

::-webkit-scrollbar {
  width: 10px;
}
::-webkit-scrollbar-track {
  background: #FBF7F1;
  border-radius: 20px;
}
::-webkit-scrollbar-thumb {
  background: #E5DCCE;
  border-radius: 20px;
  border: 2px solid #FBF7F1;
}
::-webkit-scrollbar-thumb:hover {
  background: #FF5E4A;
}

/* ---- 顶部竞技场彩条 ---- */
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 5px;
  background: linear-gradient(90deg, #FF5E4A 0%, #FF5E4A 33%, #F5B82E 33%, #F5B82E 66%, #0E9F9F 66%);
  z-index: 9999;
  pointer-events: none;
}

/* ---- 设计变量 ---- */
:root {
  --bg-cream: #FBF7F1;
  --bg-sand: #F2EBE1;
  --ink: #1E2836;
  --ink-soft: #3D4756;
  --muted: #7B8392;
  --coral: #FF5E4A;
  --coral-deep: #E74834;
  --teal: #0E9F9F;
  --teal-deep: #0B8484;
  --gold: #F5B82E;
  --line: #EAE1D4;
  --card-bg: #FFFFFF;
  --shadow-sm: 0 4px 16px rgba(30, 42, 54, 0.07);
  --shadow-lg: 0 24px 48px rgba(30, 42, 54, 0.12);
  --radius: 18px;
}

/* ==========================================================
   基础布局
   ========================================================== */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 120px 0;
  counter-increment: section;
  position: relative;
}

.section:nth-child(even) {
  background: var(--bg-sand);
}

/* ==========================================================
   导航 — 奶油玻璃拟态
   ========================================================== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(251, 247, 241, 0.88);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--line);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 900;
  font-size: 1.25rem;
  text-decoration: none;
  color: var(--ink);
  letter-spacing: -0.02em;
}

.logo-icon {
  width: 38px;
  height: 38px;
  border-radius: 12px 12px 12px 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  background: var(--coral);
  color: #fff;
  box-shadow: 0 6px 14px rgba(255, 94, 74, 0.35);
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 28px;
  list-style: none;
}

.main-nav a {
  position: relative;
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--ink-soft);
  padding: 6px 2px;
  transition: color 0.25s;
}

.main-nav a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--coral);
  border-radius: 2px;
  transition: width 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.main-nav a:hover {
  color: var(--ink);
}

.main-nav a:hover::after {
  width: 100%;
}

.nav-cta {
  background: var(--ink);
  color: #fff !important;
  border-radius: 100px;
  padding: 10px 24px !important;
  font-weight: 700;
  box-shadow: 0 8px 20px rgba(30, 42, 54, 0.15);
  transition: background 0.25s, transform 0.25s !important;
}

.nav-cta::after {
  display: none !important;
}

.nav-cta:hover {
  background: var(--coral);
  transform: translateY(-2px);
}

.menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 42px;
  height: 42px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: transparent;
  cursor: pointer;
  gap: 5px;
}

.menu-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  background: var(--ink);
  border-radius: 2px;
  transition: 0.25s;
}

/* ==========================================================
   Hero — 运动场中心圆 + 灵动图形
   ========================================================== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 70px;
  padding: 150px 0 90px;
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(circle at 12% 25%, rgba(255, 94, 74, 0.08) 0%, transparent 38%),
    radial-gradient(circle at 88% 18%, rgba(14, 159, 159, 0.07) 0%, transparent 42%),
    radial-gradient(circle at 50% 95%, rgba(245, 184, 46, 0.08) 0%, transparent 40%);
}

.hero::before {
  content: '';
  position: absolute;
  width: 540px;
  height: 540px;
  border: 3px solid rgba(245, 184, 46, 0.18);
  border-radius: 50%;
  top: 50%;
  right: -140px;
  transform: translateY(-50%);
  pointer-events: none;
}

.hero::after {
  content: '';
  position: absolute;
  width: 260px;
  height: 260px;
  border: 2px dashed rgba(255, 94, 74, 0.22);
  border-radius: 50%;
  bottom: 32px;
  left: -70px;
  pointer-events: none;
}

.hero-content {
  max-width: 680px;
  position: relative;
  z-index: 1;
  flex: 1 1 50%;
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: var(--coral);
  color: #fff;
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  padding: 7px 18px 7px 26px;
  border-radius: 100px;
  margin-bottom: 20px;
  position: relative;
  box-shadow: 0 8px 18px rgba(255, 94, 74, 0.3);
}

.hero-eyebrow::before {
  content: '●';
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 0.6rem;
  color: var(--gold);
  text-shadow: 0 0 6px rgba(245, 184, 46, 0.8);
}

.hero h1 {
  font-size: clamp(2.6rem, 6vw, 4rem);
  font-weight: 900;
  line-height: 1.12;
  letter-spacing: -0.03em;
  margin-bottom: 22px;
  color: var(--ink);
}

.hero p {
  font-size: 1.1rem;
  opacity: 0.72;
  max-width: 560px;
  margin-bottom: 36px;
  line-height: 1.85;
}

.hero-buttons {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.hero-image {
  flex: 1 1 42%;
  aspect-ratio: 4 / 3;
  min-height: 300px;
  border-radius: 26px;
  overflow: hidden;
  position: relative;
  z-index: 1;
  background:
    radial-gradient(circle at 50% 50%, transparent 58%, rgba(255, 255, 255, 0.35) 58%, transparent 64%),
    repeating-linear-gradient(45deg, rgba(255, 255, 255, 0.04) 0 10px, transparent 10px 20px),
    linear-gradient(135deg, var(--teal) 0%, #136D6D 100%);
  box-shadow: var(--shadow-lg);
  animation: heroFloat 8s ease-in-out infinite;
}

.hero-image::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.1) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.1) 1px, transparent 1px);
  background-size: 44px 44px;
  z-index: 1;
}

.hero-image::after {
  content: 'LIVE';
  position: absolute;
  top: 22px;
  right: -12px;
  background: var(--coral);
  color: #fff;
  font-size: 0.75rem;
  font-weight: 900;
  letter-spacing: 0.12em;
  padding: 6px 16px;
  border-radius: 6px;
  z-index: 3;
  transform: rotate(4deg);
  box-shadow: 0 8px 20px rgba(255, 94, 74, 0.4);
}

.hero-image img {
  position: relative;
  z-index: 2;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

@keyframes heroFloat {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  50% { transform: translateY(-12px) rotate(1deg); }
}

/* ==========================================================
   按钮 — 胶囊运动风
   ========================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 32px;
  border-radius: 100px;
  font-weight: 700;
  cursor: pointer;
  border: none;
  text-decoration: none;
  transition: all 0.28s cubic-bezier(0.34, 1.56, 0.64, 1);
  font-size: 0.95rem;
}

.btn-primary {
  background: var(--coral);
  color: #fff;
  box-shadow: 0 10px 26px rgba(255, 94, 74, 0.35);
}

.btn-primary:hover {
  background: var(--coral-deep);
  transform: translateY(-3px);
  box-shadow: 0 14px 30px rgba(255, 94, 74, 0.42);
}

.btn-outline {
  background: transparent;
  border: 1.5px solid var(--ink);
  color: var(--ink);
}

.btn-outline:hover {
  background: var(--ink);
  color: #fff;
  transform: translateY(-3px);
  box-shadow: 0 10px 24px rgba(30, 42, 54, 0.16);
}

/* ==========================================================
   标签 / 标题 — 编辑计数器
   ========================================================== */
.section-label {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: rgba(14, 159, 159, 0.1);
  color: var(--teal);
  border-radius: 100px;
  padding: 7px 18px;
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 16px;
}

.section-label::before {
  content: counter(section, decimal-leading-zero);
  background: var(--teal);
  color: #fff;
  padding: 2px 8px;
  border-radius: 5px;
  font-size: 0.68rem;
  font-weight: 900;
  letter-spacing: 0;
}

.section-title {
  font-size: clamp(1.9rem, 4vw, 2.6rem);
  font-weight: 900;
  letter-spacing: -0.02em;
  line-height: 1.2;
  margin-bottom: 16px;
  color: var(--ink);
}

.section-desc {
  max-width: 640px;
  font-size: 1.05rem;
  line-height: 1.85;
  opacity: 0.7;
  margin-bottom: 50px;
}

/* ==========================================================
   卡片网格 — 队服铭牌风
   ========================================================== */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 28px;
}

.category-card {
  background: var(--card-bg);
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 30px 26px;
  position: relative;
  overflow: hidden;
  transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow 0.3s;
}

.category-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 28px;
  right: 28px;
  height: 3px;
  background: var(--coral);
  border-radius: 0 0 6px 6px;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s;
}

.category-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}

.category-card:hover::before {
  transform: scaleX(1);
}

.card-icon {
  width: 54px;
  height: 54px;
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
  font-size: 1.4rem;
  background: rgba(14, 159, 159, 0.12);
  color: var(--teal);
  font-weight: 900;
}

.card-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-weight: 700;
  font-size: 0.9rem;
  text-decoration: none;
  color: var(--coral);
  margin-top: 8px;
  transition: gap 0.25s;
}

.card-link:hover {
  gap: 12px;
}

/* ==========================================================
   特性块 — 错位描边画框
   ========================================================== */
.feature-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 70px;
  align-items: center;
}

.feature-image {
  position: relative;
  aspect-ratio: 4 / 3;
  border-radius: 24px;
  overflow: hidden;
  background: linear-gradient(135deg, var(--bg-sand), var(--line));
  box-shadow: var(--shadow-sm);
}

.feature-image img {
  position: relative;
  z-index: 1;
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 24px;
}

.feature-image::before {
  content: '';
  position: absolute;
  right: -16px;
  bottom: -16px;
  width: 70%;
  height: 70%;
  border: 3px solid var(--coral);
  border-radius: 24px;
  z-index: 0;
}

.feature-text {
  position: relative;
  z-index: 1;
}

.feature-text .section-title {
  font-size: 2rem;
}

.feature-list {
  list-style: none;
  margin-top: 12px;
}

.feature-list li {
  padding: 8px 0;
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 0.98rem;
  color: var(--ink-soft);
}

.feature-list li::before {
  content: '✓';
  font-weight: 900;
  color: var(--teal);
  background: rgba(14, 159, 159, 0.1);
  width: 20px;
  height: 20px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.7rem;
  flex-shrink: 0;
  margin-top: 4px;
}

/* ==========================================================
   数据统计 — 记分牌
   ========================================================== */
.stats-bar {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px;
  text-align: center;
  position: relative;
}

.stat-item {
  background: var(--card-bg);
  padding: 36px 20px;
  border: 1px solid var(--line);
  border-radius: 20px;
  position: relative;
  overflow: hidden;
  transition: transform 0.25s, box-shadow 0.25s;
}

.stat-item::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--teal);
}

.stat-item:nth-child(2)::after { background: var(--coral); }
.stat-item:nth-child(3)::after { background: var(--gold); }
.stat-item:nth-child(4)::after { background: var(--ink); }

.stat-item:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.stat-number {
  display: block;
  font-size: 2.6rem;
  font-weight: 900;
  line-height: 1.1;
  color: var(--ink);
  border-bottom: 3px solid var(--coral);
  width: fit-content;
  margin: 0 auto 14px;
  padding-bottom: 6px;
  letter-spacing: -0.02em;
}

.stat-label {
  font-size: 0.92rem;
  opacity: 0.58;
  margin-top: 8px;
  font-weight: 500;
}

/* ==========================================================
   内容墙 — 赛事直播/回放卡
   ========================================================== */
.content-wall {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 28px;
}

.content-wall-item {
  border-radius: 20px;
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--card-bg);
  position: relative;
  transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow 0.3s;
}

.content-wall-item::before {
  content: '回放';
  position: absolute;
  top: 14px;
  left: 14px;
  background: var(--teal);
  color: #fff;
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  padding: 5px 14px;
  border-radius: 100px;
  z-index: 2;
  box-shadow: 0 6px 14px rgba(14, 159, 159, 0.35);
}

.content-wall-item:nth-child(1)::before,
.content-wall-item:nth-child(4n)::before {
  content: '直播';
  background: var(--coral);
  box-shadow: 0 6px 14px rgba(255, 94, 74, 0.35);
}

.content-wall-item:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}

.content-wall-item img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  display: block;
  background: var(--bg-sand);
}

.content-wall-body {
  padding: 22px;
}

.content-wall-body h3 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 6px;
  color: var(--ink);
}

.content-wall-body p {
  font-size: 0.9rem;
  opacity: 0.6;
  line-height: 1.6;
}

/* ==========================================================
   FAQ — 手风琴清单
   ========================================================== */
.faq-list {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  border: 1px solid var(--line);
  border-radius: 16px;
  margin-bottom: 12px;
  overflow: hidden;
  cursor: pointer;
  background: var(--card-bg);
  transition: border-color 0.25s, box-shadow 0.25s;
}

.faq-item.open {
  border-color: var(--teal);
  box-shadow: var(--shadow-sm);
}

.faq-question {
  padding: 20px 24px;
  font-weight: 700;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 1rem;
  color: var(--ink);
  gap: 16px;
}

.faq-question::after {
  content: '+';
  font-size: 1.5rem;
  font-weight: 400;
  color: var(--coral);
  transition: transform 0.3s;
  line-height: 1;
  flex-shrink: 0;
}

.faq-item.open .faq-question::after {
  transform: rotate(45deg);
}

.faq-answer {
  padding: 0 24px 22px;
  display: none;
  opacity: 0.7;
  font-size: 0.95rem;
  line-height: 1.8;
}

.faq-item.open .faq-answer {
  display: block;
}

/* ==========================================================
   CTA 横幅 — 珊瑚金夕阳
   ========================================================== */
.cta-banner {
  padding: 76px 40px;
  text-align: center;
  border-radius: 28px;
  color: #fff;
  background: linear-gradient(120deg, #F9623F 0%, #FF7F5B 40%, #F5B82E 100%);
  position: relative;
  overflow: hidden;
  box-shadow: 0 24px 60px rgba(255, 94, 74, 0.28);
}

.cta-banner::before {
  content: '';
  position: absolute;
  width: 220px;
  height: 220px;
  border: 2.5px solid rgba(255, 255, 255, 0.25);
  border-radius: 50%;
  top: -90px;
  right: -40px;
}

.cta-banner::after {
  content: '';
  position: absolute;
  width: 130px;
  height: 130px;
  background: rgba(255, 255, 255, 0.16);
  border-radius: 50%;
  bottom: -45px;
  left: 12%;
}

.cta-banner h2 {
  color: #fff;
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  font-weight: 900;
  letter-spacing: -0.02em;
  margin-bottom: 14px;
  position: relative;
  z-index: 1;
}

.cta-banner p {
  position: relative;
  z-index: 1;
  color: rgba(255, 255, 255, 0.92);
  max-width: 520px;
  margin: 0 auto 28px;
  line-height: 1.8;
}

.cta-banner .btn-primary {
  background: #fff;
  color: var(--coral);
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.12);
  position: relative;
  z-index: 1;
}

.cta-banner .btn-primary:hover {
  background: var(--ink);
  color: #fff;
  box-shadow: 0 12px 28px rgba(30, 42, 54, 0.2);
}

/* ==========================================================
   页脚 — 浅暖沙色
   ========================================================== */
.site-footer {
  padding: 70px 0 30px;
  background: var(--bg-sand);
  border-top: 1px solid var(--line);
  color: var(--ink-soft);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
}

.footer-brand {
  font-weight: 900;
  font-size: 1.2rem;
  color: var(--ink);
  margin-bottom: 12px;
}

.footer-brand span {
  color: var(--coral);
}

.footer-col {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-col h4 {
  font-size: 0.9rem;
  font-weight: 800;
  color: var(--ink);
  margin-bottom: 8px;
  letter-spacing: 0.05em;
}

.footer-col a {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.9rem;
  transition: color 0.2s;
}

.footer-col a:hover {
  color: var(--coral);
}

.footer-bottom {
  border-top: 1px solid var(--line);
  margin-top: 56px;
  padding-top: 24px;
  text-align: center;
  font-size: 0.85rem;
  color: var(--muted);
}

.footer-bottom::before {
  content: '●';
  color: var(--coral);
  margin-right: 8px;
  font-size: 0.5rem;
  vertical-align: middle;
}

/* ==========================================================
   工具类
   ========================================================== */
.text-accent {
  color: var(--coral);
}

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

.seo-description {
  max-width: 600px;
  margin: 0 auto 48px;
  opacity: 0.7;
  line-height: 1.8;
}

.mt-0 { margin-top: 0; }
.mb-0 { margin-bottom: 0; }

/* ==========================================================
   响应式适配
   ========================================================== */
@media (max-width: 992px) {
  .hero {
    flex-direction: column;
    gap: 40px;
    padding-top: 120px;
  }
  .hero-content {
    max-width: 100%;
    flex: none;
  }
  .hero-image {
    width: 100%;
    flex: none;
  }
  .feature-block {
    gap: 48px;
  }
}

@media (max-width: 768px) {
  .section {
    padding: 80px 0;
  }

  .feature-block {
    grid-template-columns: 1fr;
  }

  .stats-bar {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .main-nav {
    display: none;
  }

  .menu-toggle {
    display: flex;
  }

  .main-nav.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 72px;
    left: 0;
    width: 100%;
    background: var(--bg-cream);
    padding: 28px 24px;
    gap: 22px;
    border-bottom: 1px solid var(--line);
    box-shadow: 0 20px 40px rgba(30, 42, 54, 0.08);
  }

  .main-nav.open a {
    font-size: 1.05rem;
    padding: 8px 0;
  }

  .nav-cta {
    align-self: flex-start;
  }

  .cta-banner {
    padding: 56px 28px;
  }
}

@media (max-width: 480px) {
  .cards-grid,
  .content-wall,
  .stats-bar {
    grid-template-columns: 1fr;
  }

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

  .hero-buttons {
    flex-direction: column;
  }

  .hero-buttons .btn {
    width: 100%;
    justify-content: center;
  }

  .stat-number {
    font-size: 2.2rem;
  }

  .hero h1 {
    font-size: 2.3rem;
  }

  .section-title {
    font-size: 1.7rem;
  }

  .section {
    padding: 60px 0;
  }

  .feature-block {
    gap: 36px;
  }
}