/* ============================================
   每日大赛 · 环球视野设计系统
   品牌: 每日大赛 yandex官网
   色彩: 奶油白 / 珊瑚红 / 青碧 / 明黄
   视觉语言: 全球信号、票券质感、杂志排版
   ============================================ */

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

body {
  font-family: system-ui, 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
  overflow-x: hidden;
  background: #FBF6EF;
  color: #244545;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

::selection {
  background: rgba(255, 107, 74, 0.2);
  color: #244545;
}

a {
  color: inherit;
}

/* ============ 核心布局 ============ */

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 96px 0;
  position: relative;
}

.section:nth-child(even) {
  background: #F4EEE6;
}

/* ============ 导航 ============ */

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(251, 246, 239, 0.92);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid rgba(232, 224, 214, 0.6);
}

.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: 800;
  font-size: 1.25rem;
  text-decoration: none;
  color: #244545;
  letter-spacing: -0.5px;
}

.logo-icon {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  background: linear-gradient(135deg, #FF6B4A, #FFC93C);
  color: #fff;
  box-shadow: 0 4px 14px rgba(255, 107, 74, 0.3);
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
}

.main-nav a {
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 600;
  color: #244545;
  position: relative;
  padding: 6px 0;
  transition: color 0.25s;
}

.main-nav a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2.5px;
  background: linear-gradient(90deg, #FF6B4A, #FFC93C);
  border-radius: 2px;
  transition: width 0.3s ease;
}

.main-nav a:hover {
  color: #FF6B4A;
}

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

.nav-cta {
  padding: 10px 26px;
  border-radius: 100px;
  background: linear-gradient(135deg, #FF6B4A, #FF8459);
  color: #fff !important;
  font-weight: 700;
  box-shadow: 0 4px 16px rgba(255, 107, 74, 0.3);
  transition: transform 0.25s, box-shadow 0.25s !important;
}

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

.nav-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(255, 107, 74, 0.4);
  color: #fff !important;
}

.menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  border: none;
  background: rgba(255, 107, 74, 0.08);
  color: #FF6B4A;
  font-size: 1.4rem;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: background 0.2s;
}

.menu-toggle:hover {
  background: rgba(255, 107, 74, 0.16);
}

/* ============ Hero ============ */

.hero {
  position: relative;
  min-height: 88vh;
  display: flex;
  align-items: center;
  padding: 120px 0 80px;
  overflow: hidden;
  background:
    radial-gradient(circle at 85% 20%, rgba(255, 107, 74, 0.1) 0%, transparent 45%),
    radial-gradient(circle at 60% 80%, rgba(0, 184, 169, 0.08) 0%, transparent 40%),
    repeating-linear-gradient(0deg, transparent, transparent 28px, rgba(36, 69, 69, 0.012) 28px, rgba(36, 69, 69, 0.012) 29px),
    #FBF6EF;
}

.hero::before {
  content: '';
  position: absolute;
  width: 380px;
  height: 380px;
  border-radius: 50%;
  border: 2px dashed rgba(255, 107, 74, 0.2);
  top: -120px;
  right: 6%;
  pointer-events: none;
  animation: heroSpin 30s linear infinite;
}

.hero::after {
  content: '';
  position: absolute;
  width: 220px;
  height: 220px;
  border-radius: 50%;
  border: 1.5px solid rgba(0, 184, 169, 0.25);
  bottom: -60px;
  right: 18%;
  pointer-events: none;
  animation: heroFloat 5s ease-in-out infinite;
}

@keyframes heroSpin {
  from { transform: rotate(0deg) scale(1); }
  to { transform: rotate(360deg) scale(1); }
}

@keyframes heroFloat {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-16px); }
}

.hero-content {
  max-width: 640px;
  position: relative;
  z-index: 2;
}

.hero-eyebrow {
  display: inline-block;
  font-size: 0.82rem;
  font-weight: 700;
  padding: 8px 22px;
  border-radius: 100px;
  margin-bottom: 24px;
  background: rgba(255, 201, 60, 0.2);
  color: #B57900;
  border: 1px solid rgba(255, 201, 60, 0.35);
  letter-spacing: 1px;
}

.hero h1 {
  font-size: clamp(2.5rem, 5.5vw, 3.8rem);
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: -1.5px;
  margin-bottom: 24px;
  color: #244545;
  position: relative;
}

@supports ((-webkit-background-clip: text) or (background-clip: text)) {
  .hero h1 {
    background: linear-gradient(95deg, #244545 30%, #FF6B4A 90%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    color: transparent;
  }
}

.hero h1::after {
  content: '';
  position: absolute;
  bottom: -6px;
  left: 0;
  width: 100%;
  max-width: 360px;
  height: 6px;
  border-radius: 3px;
  background: repeating-linear-gradient(90deg, #FF6B4A 0 10px, #00B8A9 10px 14px, transparent 14px 20px);
  opacity: 0.5;
}

.hero p {
  font-size: 1.12rem;
  color: #5D7A7A;
  max-width: 520px;
  margin-bottom: 36px;
  line-height: 1.7;
}

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

.hero-image {
  position: relative;
  width: 420px;
  height: 420px;
  border-radius: 50%;
  padding: 10px;
  background: conic-gradient(from 210deg, #FF6B4A, #FFC93C, #00B8A9, #4ECDC4, #FF6B4A);
  box-shadow: 0 24px 70px rgba(255, 107, 74, 0.2), 0 8px 30px rgba(0, 184, 169, 0.12);
  flex-shrink: 0;
  z-index: 1;
  animation: heroFloat 7s ease-in-out infinite;
}

.hero-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 50%;
  display: block;
  border: 6px solid #FBF6EF;
}

/* ============ 按钮 ============ */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 32px;
  border-radius: 100px;
  font-weight: 700;
  font-size: 0.95rem;
  cursor: pointer;
  border: none;
  text-decoration: none;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.btn-primary {
  background: linear-gradient(135deg, #FF6B4A, #FF8459);
  color: #fff;
  box-shadow: 0 8px 24px rgba(255, 107, 74, 0.35);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 14px 32px rgba(255, 107, 74, 0.45);
}

.btn-outline {
  background: transparent;
  border: 2px solid #00B8A9;
  color: #00A896;
}

.btn-outline:hover {
  background: rgba(0, 184, 169, 0.08);
  transform: translateY(-2px);
}

/* ============ 标签 / 标题 ============ */

.section-label {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 4px;
  text-transform: uppercase;
  margin-bottom: 16px;
  padding-left: 14px;
  border-left: 4px solid #FF6B4A;
  color: #FF6B4A;
}

.section-title {
  font-size: 2.2rem;
  font-weight: 800;
  letter-spacing: -0.5px;
  line-height: 1.2;
  margin-bottom: 16px;
  color: #244545;
  position: relative;
}

.section-title::after {
  content: '';
  display: block;
  width: 56px;
  height: 4px;
  border-radius: 2px;
  margin-top: 16px;
  background: linear-gradient(90deg, #FF6B4A, #00B8A9);
}

.section-desc {
  max-width: 620px;
  color: #5D7A7A;
  margin-bottom: 48px;
  line-height: 1.7;
}

/* ============ 卡片网格 ============ */

.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 28px;
}

.category-card {
  background: #fff;
  border-radius: 20px;
  padding: 32px 28px 36px;
  border: none;
  position: relative;
  box-shadow: 0 2px 16px rgba(36, 69, 69, 0.05);
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  overflow: hidden;
}

.category-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, #FF6B4A, #FFC93C);
  border-radius: 0 0 4px 4px;
}

.category-card::after {
  content: '';
  position: absolute;
  bottom: -8px;
  left: 0;
  right: 0;
  height: 16px;
  background: repeating-linear-gradient(-45deg, 
    #fff 0, #fff 8px, 
    #F4EEE6 8px, #F4EEE6 10px);
  border-radius: 8px 8px 0 0;
  opacity: 0.7;
}

.category-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 20px 48px rgba(36, 69, 69, 0.1);
}

.category-card:hover::after {
  opacity: 1;
}

.card-icon {
  width: 56px;
  height: 56px;
  border-radius: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  font-size: 1.4rem;
  background: linear-gradient(135deg, rgba(255, 107, 74, 0.12), rgba(255, 201, 60, 0.12));
  color: #FF6B4A;
}

.category-card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 10px;
  color: #244545;
}

.category-card p {
  font-size: 0.9rem;
  color: #5D7A7A;
  line-height: 1.6;
  margin-bottom: 20px;
}

.card-link {
  font-weight: 700;
  font-size: 0.85rem;
  text-decoration: none;
  color: #00A896;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: gap 0.25s;
}

.card-link::after {
  content: '→';
  transition: transform 0.25s;
}

.card-link:hover {
  gap: 10px;
}

/* ============ 特性块 ============ */

.feature-block {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 64px;
  align-items: center;
}

.feature-image {
  border-radius: 24px;
  overflow: hidden;
  position: relative;
  box-shadow: 0 12px 40px rgba(36, 69, 69, 0.08);
}

.feature-image::before {
  content: '';
  position: absolute;
  inset: -16px;
  border-radius: 32px;
  border: 2px dashed rgba(0, 184, 169, 0.3);
  pointer-events: none;
  z-index: 1;
  transition: transform 0.5s ease;
}

.feature-block:hover .feature-image::before {
  transform: rotate(-2deg) scale(1.02);
}

.feature-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  border-radius: 24px;
  position: relative;
  z-index: 0;
}

.feature-text {
  position: relative;
}

.feature-text h3 {
  font-size: 1.5rem;
  font-weight: 800;
  color: #244545;
  margin-bottom: 12px;
  line-height: 1.3;
}

.feature-text p {
  color: #5D7A7A;
  line-height: 1.7;
  margin-bottom: 28px;
}

.feature-list {
  list-style: none;
}

.feature-list li {
  padding: 8px 0;
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 500;
}

.feature-list li::before {
  content: '●';
  font-weight: 700;
  color: #00B8A9;
  font-size: 0.5rem;
  background: rgba(0, 184, 169, 0.15);
  width: 22px;
  height: 22px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

/* ============ 数据条 ============ */

.stats-bar {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.stat-item {
  background: #fff;
  padding: 36px 24px;
  border-radius: 20px;
  border: none;
  position: relative;
  text-align: center;
  box-shadow: 0 2px 16px rgba(36, 69, 69, 0.05);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.stat-item::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 32px;
  height: 4px;
  border-radius: 0 0 4px 4px;
  background: linear-gradient(90deg, #FF6B4A, #00B8A9);
}

.stat-item:hover {
  transform: translateY(-4px) rotate(-1deg);
  box-shadow: 0 16px 40px rgba(36, 69, 69, 0.1);
}

.stat-number {
  font-size: 2.6rem;
  font-weight: 900;
  color: #FF6B4A;
  line-height: 1.1;
  letter-spacing: -1px;
}

.stat-label {
  font-size: 0.9rem;
  color: #5D7A7A;
  margin-top: 10px;
  font-weight: 500;
  letter-spacing: 0.5px;
}

/* ============ 内容墙 ============ */

.content-wall {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 28px;
}

.content-wall-item {
  border-radius: 20px;
  border: none;
  background: #fff;
  box-shadow: 0 2px 16px rgba(36, 69, 69, 0.05);
  overflow: hidden;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
}

.content-wall-item:hover {
  transform: translateY(-6px);
  box-shadow: 0 18px 44px rgba(36, 69, 69, 0.1);
}

.content-wall-item img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  display: block;
}

.content-wall-body {
  padding: 24px;
}

.content-wall-body .tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: #00A896;
  background: rgba(0, 184, 169, 0.1);
  padding: 4px 12px;
  border-radius: 4px;
  margin-bottom: 12px;
}

.content-wall-body h3 {
  font-size: 1.05rem;
  font-weight: 700;
  color: #244545;
  margin-bottom: 8px;
  line-height: 1.4;
}

.content-wall-body p {
  font-size: 0.88rem;
  color: #5D7A7A;
  line-height: 1.6;
}

/* ============ FAQ ============ */

.faq-list {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  border: 1.5px solid #E8E0D6;
  border-radius: 16px;
  margin-bottom: 10px;
  overflow: hidden;
  cursor: pointer;
  background: #fff;
  transition: border-color 0.3s, box-shadow 0.3s;
}

.faq-item:hover {
  border-color: #D4C8BC;
}

.faq-item.open {
  border-color: rgba(0, 184, 169, 0.5);
  box-shadow: 0 8px 32px rgba(0, 184, 169, 0.08);
}

.faq-item .faq-question {
  padding: 20px 24px;
  font-weight: 700;
  font-size: 0.98rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: #244545;
  transition: color 0.3s;
}

.faq-item .faq-question::after {
  content: '+';
  font-size: 1.3rem;
  font-weight: 400;
  color: #00B8A9;
  transition: transform 0.3s ease, color 0.3s;
  flex-shrink: 0;
  margin-left: 12px;
}

.faq-item.open .faq-question {
  color: #FF6B4A;
}

.faq-item.open .faq-question::after {
  transform: rotate(45deg);
  color: #FF6B4A;
}

.faq-item .faq-answer {
  padding: 0 24px 20px;
  display: none;
  color: #5D7A7A;
  font-size: 0.9rem;
  line-height: 1.7;
}

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

/* ============ CTA横幅 ============ */

.cta-banner {
  padding: 64px 48px;
  text-align: center;
  border-radius: 28px;
  color: #fff;
  background: linear-gradient(120deg, #FF6B4A, #E8553A, #FF8A5C);
  position: relative;
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(255, 107, 74, 0.35);
}

.cta-banner::before {
  content: '';
  position: absolute;
  width: 240px;
  height: 240px;
  border-radius: 50%;
  border: 2px solid rgba(255, 255, 255, 0.15);
  top: -80px;
  right: 8%;
  pointer-events: none;
}

.cta-banner::after {
  content: '';
  position: absolute;
  width: 160px;
  height: 160px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.1);
  bottom: -60px;
  left: 12%;
  pointer-events: none;
}

.cta-banner h2 {
  color: #fff;
  font-size: 2.2rem;
  font-weight: 800;
  letter-spacing: -0.5px;
  margin-bottom: 12px;
  position: relative;
  z-index: 1;
}

.cta-banner p {
  color: rgba(255, 255, 255, 0.9);
  position: relative;
  z-index: 1;
  margin-bottom: 32px;
}

.cta-banner .btn-primary {
  background: #fff;
  color: #FF6B4A;
  box-shadow: none;
  position: relative;
  z-index: 1;
}

.cta-banner .btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.12);
}

/* ============ 页脚 ============ */

.site-footer {
  padding: 72px 0 32px;
  background: #F2ECE3;
  border-top: 2px solid #EAE2D8;
}

.site-footer .container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

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

.footer-brand .logo {
  font-size: 1.5rem;
  margin-bottom: 16px;
}

.footer-brand p {
  color: #5D7A7A;
  font-size: 0.9rem;
  max-width: 260px;
  line-height: 1.7;
}

.footer-col h4 {
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 20px;
  color: #244545;
  letter-spacing: 1px;
  text-transform: uppercase;
}

.footer-col ul {
  list-style: none;
}

.footer-col ul li {
  padding: 5px 0;
}

.footer-col ul a {
  color: #5D7A7A;
  text-decoration: none;
  font-size: 0.9rem;
  transition: color 0.2s;
}

.footer-col ul a:hover {
  color: #FF6B4A;
}

.footer-bottom {
  border-top: 1px solid rgba(36, 69, 69, 0.1);
  margin-top: 52px;
  padding-top: 24px;
  text-align: center;
  font-size: 0.85rem;
  color: #8A9A9A;
}

/* ============ 工具类 ============ */

.text-accent {
  color: #FF6B4A;
}

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

.seo-description {
  max-width: 600px;
  margin: 0 auto 48px;
  color: #5D7A7A;
  line-height: 1.7;
}

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

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

/* ============ 動画 & 装饰 ============ */

@keyframes pulse-ring {
  0% {
    transform: scale(0.8);
    opacity: 0.8;
  }
  100% {
    transform: scale(1.4);
    opacity: 0;
  }
}

/* ============ 响应式 ============ */

@media (max-width: 992px) {
  .hero {
    flex-direction: column;
    text-align: center;
    gap: 60px;
    padding: 120px 24px 60px;
  }

  .hero-content {
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    align-items: center;
  }

  .hero p {
    margin-left: auto;
    margin-right: auto;
  }

  .hero h1::after {
    left: 50%;
    transform: translateX(-50%);
  }

  .hero-image {
    width: 320px;
    height: 320px;
  }

  .feature-block {
    grid-template-columns: 1fr;
    gap: 48px;
  }

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

@media (max-width: 768px) {
  .section {
    padding: 64px 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: 12px;
    right: 12px;
    width: auto;
    background: rgba(251, 246, 239, 0.98);
    backdrop-filter: blur(12px);
    padding: 24px;
    border-radius: 20px;
    box-shadow: 0 20px 60px rgba(36, 69, 69, 0.15);
    gap: 24px;
    align-items: center;
    border: 1px solid rgba(232, 224, 214, 0.6);
  }

  .main-nav.open .nav-cta {
    width: 100%;
    text-align: center;
  }
}

@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;
    width: 100%;
    max-width: 280px;
  }

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

  .hero h1 {
    font-size: 2rem;
  }

  .cta-banner {
    padding: 48px 28px;
  }

  .cta-banner h2 {
    font-size: 1.6rem;
  }

  .stats-bar {
    gap: 16px;
  }

  .stat-item {
    padding: 24px 16px;
  }

  .section-title {
    font-size: 1.6rem;
  }
}