/* ===== 海角星网传媒MCN官网 - 主样式表 ===== */
/* 商业蓝+流光金 企业级视觉体系 */

:root {
  --primary: #1A237E;
  --primary-light: #283593;
  --primary-dark: #0D1452;
  --accent: #FFC107;
  --accent-light: #FFD54F;
  --accent-dark: #FFA000;
  --bg-main: #F4F6F9;
  --bg-card: #FFFFFF;
  --text-primary: #2C3E50;
  --text-secondary: #5D6D7E;
  --text-light: #8E99A4;
  --border-color: #E8ECF0;
  --shadow-sm: 0 2px 8px rgba(26,35,126,0.06);
  --shadow-md: 0 4px 16px rgba(26,35,126,0.1);
  --shadow-lg: 0 8px 32px rgba(26,35,126,0.15);
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --font-heading: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", sans-serif;
  --font-body: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", sans-serif;
  --max-width: 1280px;
}

/* ===== 全局重置 ===== */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  color: var(--text-primary);
  background-color: var(--bg-main);
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

a {
  color: var(--primary);
  text-decoration: none;
  transition: var(--transition);
}

a:hover {
  color: var(--accent);
}

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

ul, ol {
  list-style: none;
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px;
}

/* ===== 顶部导航栏 ===== */
.mcn-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(26, 35, 126, 0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255, 193, 7, 0.2);
  transition: var(--transition);
}

.mcn-header.scrolled {
  background: rgba(13, 20, 82, 0.98);
  box-shadow: 0 2px 20px rgba(0,0,0,0.3);
}

.mcn-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px;
}

.mcn-header__logo {
  display: flex;
  align-items: center;
  gap: 10px;
}

.mcn-header__logo img {
  height: 40px;
  width: 40px;
  border-radius: 50%;
}

.mcn-header__logo span {
  font-size: 1.2rem;
  font-weight: 700;
  color: #fff;
  letter-spacing: 1px;
}

.mcn-nav {
  display: flex;
  align-items: center;
  gap: 32px;
}

.mcn-nav__link {
  color: rgba(255,255,255,0.85);
  font-size: 0.95rem;
  font-weight: 500;
  position: relative;
  padding: 4px 0;
}

.mcn-nav__link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent);
  transition: var(--transition);
}

.mcn-nav__link:hover {
  color: var(--accent);
}

.mcn-nav__link:hover::after {
  width: 100%;
}

.mcn-nav__btn {
  padding: 8px 20px;
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
  color: var(--primary-dark) !important;
  border-radius: 24px;
  font-weight: 600;
  font-size: 0.9rem;
}

.mcn-nav__btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(255,193,7,0.4);
  color: var(--primary-dark) !important;
}

/* 移动端菜单 */
.mcn-menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 8px;
}

.mcn-menu-toggle span {
  width: 24px;
  height: 2px;
  background: #fff;
  transition: var(--transition);
}

/* ===== Hero区域 ===== */
.mcn-hero {
  position: relative;
  height: 100vh;
  min-height: 600px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.mcn-hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.mcn-hero__bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.mcn-hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(13,20,82,0.85) 0%, rgba(26,35,126,0.7) 50%, rgba(13,20,82,0.9) 100%);
  z-index: 1;
}

.mcn-hero__content {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: 0 20px;
  max-width: 800px;
}

.mcn-hero__title {
  font-size: 3.2rem;
  font-weight: 800;
  color: #fff;
  margin-bottom: 20px;
  line-height: 1.3;
  text-shadow: 0 2px 20px rgba(0,0,0,0.3);
}

.mcn-hero__subtitle {
  font-size: 1.2rem;
  color: rgba(255,255,255,0.85);
  margin-bottom: 40px;
  line-height: 1.8;
}

.mcn-hero__actions {
  display: flex;
  gap: 20px;
  justify-content: center;
  flex-wrap: wrap;
}

.mcn-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: 30px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: var(--transition);
}

.mcn-btn--primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
  color: var(--primary-dark);
  box-shadow: 0 4px 15px rgba(255,193,7,0.3);
}

.mcn-btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 25px rgba(255,193,7,0.5);
  color: var(--primary-dark);
}

.mcn-btn--outline {
  background: transparent;
  color: #fff;
  border: 2px solid rgba(255,255,255,0.6);
}

.mcn-btn--outline:hover {
  background: rgba(255,255,255,0.1);
  border-color: var(--accent);
  color: var(--accent);
}

/* ===== 数据战报区 ===== */
.mcn-stats {
  padding: 80px 0;
  background: var(--primary);
  position: relative;
  overflow: hidden;
}

.mcn-stats::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle at 30% 50%, rgba(255,193,7,0.05) 0%, transparent 50%);
  animation: statsPulse 8s ease-in-out infinite;
}

@keyframes statsPulse {
  0%, 100% { transform: scale(1); opacity: 0.5; }
  50% { transform: scale(1.1); opacity: 1; }
}

.mcn-stats__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 30px;
  position: relative;
  z-index: 1;
}

.mcn-stats__item {
  text-align: center;
  padding: 30px 20px;
}

.mcn-stats__number {
  font-size: 3rem;
  font-weight: 800;
  color: var(--accent);
  margin-bottom: 8px;
  font-variant-numeric: tabular-nums;
}

.mcn-stats__label {
  font-size: 1rem;
  color: rgba(255,255,255,0.8);
  font-weight: 500;
}

/* ===== 达人展示区 ===== */
.mcn-creators {
  padding: 100px 0;
  background: var(--bg-main);
}

.mcn-section-header {
  text-align: center;
  margin-bottom: 60px;
}

.mcn-section-header__title {
  font-size: 2.4rem;
  font-weight: 800;
  color: var(--primary);
  margin-bottom: 12px;
}

.mcn-section-header__subtitle {
  font-size: 1.1rem;
  color: var(--text-secondary);
}

.mcn-section-header__line {
  width: 60px;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), var(--primary));
  margin: 16px auto 0;
  border-radius: 2px;
}

.mcn-creators__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 30px;
}

.mcn-creator-card {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--bg-card);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  perspective: 1000px;
}

.mcn-creator-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
}

.mcn-creator-card__front {
  position: relative;
}

.mcn-creator-card__img {
  width: 100%;
  aspect-ratio: 3/4;
  object-fit: cover;
}

.mcn-creator-card__info {
  padding: 20px;
  text-align: center;
}

.mcn-creator-card__name {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.mcn-creator-card__tag {
  display: inline-block;
  padding: 3px 12px;
  background: rgba(26,35,126,0.08);
  color: var(--primary);
  border-radius: 12px;
  font-size: 0.8rem;
  margin-bottom: 8px;
}

.mcn-creator-card__fans {
  font-size: 0.9rem;
  color: var(--accent-dark);
  font-weight: 600;
}

/* ===== 核心业务区 ===== */
.mcn-services {
  padding: 100px 0;
  background: #fff;
}

.mcn-services__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 30px;
}

.mcn-service-card {
  padding: 40px 24px;
  text-align: center;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.mcn-service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  transform: scaleX(0);
  transition: var(--transition);
}

.mcn-service-card:hover {
  border-color: var(--primary);
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
}

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

.mcn-service-card__icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 20px;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
  color: var(--accent);
}

.mcn-service-card__title {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 12px;
}

.mcn-service-card__desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ===== 品牌墙 ===== */
.mcn-brands {
  padding: 80px 0;
  background: var(--bg-main);
  overflow: hidden;
}

.mcn-brands__track {
  display: flex;
  gap: 60px;
  animation: brandScroll 30s linear infinite;
}

.mcn-brands__item {
  flex-shrink: 0;
  width: 120px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-card);
  border-radius: var(--radius-sm);
  padding: 10px 20px;
  box-shadow: var(--shadow-sm);
  opacity: 0.7;
  transition: var(--transition);
}

.mcn-brands__item:hover {
  opacity: 1;
  transform: scale(1.05);
}

@keyframes brandScroll {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

/* ===== 资讯动态区 ===== */
.mcn-news {
  padding: 100px 0;
  background: #fff;
}

.mcn-news__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.mcn-news-card {
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--bg-card);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.mcn-news-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
}

.mcn-news-card__img {
  width: 100%;
  aspect-ratio: 16/9;
  object-fit: cover;
}

.mcn-news-card__body {
  padding: 24px;
}

.mcn-news-card__date {
  font-size: 0.85rem;
  color: var(--text-light);
  margin-bottom: 8px;
}

.mcn-news-card__title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 10px;
  line-height: 1.5;
}

.mcn-news-card__excerpt {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ===== 页脚 ===== */
.mcn-footer {
  background: var(--primary-dark);
  padding: 60px 0 30px;
  color: rgba(255,255,255,0.7);
}

.mcn-footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}

.mcn-footer__brand p {
  font-size: 0.9rem;
  line-height: 1.8;
  margin-top: 12px;
}

.mcn-footer__title {
  font-size: 1rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 16px;
}

.mcn-footer__links a {
  display: block;
  color: rgba(255,255,255,0.6);
  font-size: 0.9rem;
  padding: 4px 0;
}

.mcn-footer__links a:hover {
  color: var(--accent);
}

.mcn-footer__bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 24px;
  text-align: center;
  font-size: 0.85rem;
}

/* ===== 面包屑 ===== */
.mcn-breadcrumb {
  padding: 20px 0;
  font-size: 0.9rem;
  color: var(--text-light);
}

.mcn-breadcrumb a {
  color: var(--text-secondary);
}

.mcn-breadcrumb span {
  margin: 0 8px;
  color: var(--text-light);
}

/* ===== 内页通用 ===== */
.mcn-page-hero {
  padding: 120px 0 60px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
  text-align: center;
}

.mcn-page-hero__title {
  font-size: 2.4rem;
  font-weight: 800;
  color: #fff;
  margin-bottom: 12px;
}

.mcn-page-hero__desc {
  font-size: 1.1rem;
  color: rgba(255,255,255,0.8);
  max-width: 600px;
  margin: 0 auto;
}

.mcn-page-content {
  padding: 60px 0 100px;
}

.mcn-page-content p {
  margin-bottom: 20px;
  line-height: 1.9;
}

.mcn-page-content h2 {
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--primary);
  margin: 40px 0 16px;
}

.mcn-page-content h3 {
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--text-primary);
  margin: 30px 0 12px;
}

/* ===== 达人筛选器 ===== */
.mcn-filter {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 40px;
  padding: 20px;
  background: var(--bg-card);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
}

.mcn-filter__btn {
  padding: 8px 20px;
  border: 1px solid var(--border-color);
  border-radius: 20px;
  font-size: 0.9rem;
  cursor: pointer;
  background: transparent;
  color: var(--text-secondary);
  transition: var(--transition);
}

.mcn-filter__btn:hover,
.mcn-filter__btn.active {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}

/* ===== 战报大屏 ===== */
.mcn-dashboard {
  background: linear-gradient(135deg, var(--primary-dark), var(--primary));
  border-radius: var(--radius-lg);
  padding: 40px;
  margin: 40px 0;
}

.mcn-dashboard__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.mcn-dashboard__card {
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: var(--radius-md);
  padding: 24px;
  text-align: center;
}

.mcn-dashboard__value {
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--accent);
  margin-bottom: 8px;
}

.mcn-dashboard__label {
  font-size: 0.9rem;
  color: rgba(255,255,255,0.7);
}

/* ===== 表单 ===== */
.mcn-form {
  max-width: 700px;
  margin: 0 auto;
  padding: 40px;
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
}

.mcn-form__group {
  margin-bottom: 24px;
}

.mcn-form__label {
  display: block;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.mcn-form__input,
.mcn-form__select,
.mcn-form__textarea {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  transition: var(--transition);
  font-family: var(--font-body);
}

.mcn-form__input:focus,
.mcn-form__select:focus,
.mcn-form__textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(26,35,126,0.1);
}

.mcn-form__textarea {
  min-height: 120px;
  resize: vertical;
}

.mcn-form__submit {
  width: 100%;
  padding: 14px;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  color: #fff;
  border: none;
  border-radius: var(--radius-sm);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}

.mcn-form__submit:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

/* ===== 搜索页 ===== */
.mcn-search {
  padding: 40px 0;
}

.mcn-search__box {
  display: flex;
  gap: 12px;
  margin-bottom: 40px;
}

.mcn-search__input {
  flex: 1;
  padding: 14px 20px;
  border: 2px solid var(--border-color);
  border-radius: var(--radius-md);
  font-size: 1rem;
  transition: var(--transition);
}

.mcn-search__input:focus {
  border-color: var(--primary);
  outline: none;
}

.mcn-search__btn {
  padding: 14px 32px;
  background: var(--primary);
  color: #fff;
  border: none;
  border-radius: var(--radius-md);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
}

.mcn-search__results {
  margin-top: 30px;
}

.mcn-search__item {
  padding: 20px;
  border-bottom: 1px solid var(--border-color);
}

.mcn-search__item-title {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--primary);
  margin-bottom: 6px;
}

.mcn-search__item-desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

/* ===== 404页面 ===== */
.mcn-404 {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  background: linear-gradient(135deg, var(--primary-dark), var(--primary));
}

.mcn-404__code {
  font-size: 8rem;
  font-weight: 900;
  color: var(--accent);
  line-height: 1;
  margin-bottom: 20px;
}

.mcn-404__text {
  font-size: 1.4rem;
  color: rgba(255,255,255,0.8);
  margin-bottom: 30px;
}

/* ===== 响应式断点 ===== */
@media (max-width: 1024px) {
  .mcn-stats__grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .mcn-creators__grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .mcn-services__grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .mcn-footer__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .mcn-nav {
    display: none;
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    background: var(--primary-dark);
    flex-direction: column;
    padding: 20px;
    gap: 16px;
  }

  .mcn-nav.active {
    display: flex;
  }

  .mcn-menu-toggle {
    display: flex;
  }

  .mcn-hero__title {
    font-size: 2rem;
  }

  .mcn-hero__actions {
    flex-direction: column;
    align-items: center;
  }

  .mcn-stats__grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }

  .mcn-stats__number {
    font-size: 2rem;
  }

  .mcn-creators__grid {
    grid-template-columns: 1fr;
    max-width: 320px;
    margin: 0 auto;
  }

  .mcn-services__grid {
    grid-template-columns: 1fr;
  }

  .mcn-news__grid {
    grid-template-columns: 1fr;
  }

  .mcn-footer__grid {
    grid-template-columns: 1fr;
  }

  .mcn-dashboard__grid {
    grid-template-columns: 1fr;
  }

  .mcn-section-header__title {
    font-size: 1.8rem;
  }

  .mcn-page-hero__title {
    font-size: 1.8rem;
  }

  .mcn-filter {
    justify-content: center;
  }
}

@media (max-width: 480px) {
  .mcn-hero {
    min-height: 500px;
  }

  .mcn-hero__title {
    font-size: 1.6rem;
  }

  .mcn-stats__grid {
    grid-template-columns: 1fr 1fr;
  }

  .mcn-form {
    padding: 24px 16px;
  }
}

/* ===== 动画 ===== */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* 数字滚动动画 */
.count-up {
  display: inline-block;
}

/* 品牌墙暂停 */
.mcn-brands__track:hover {
  animation-play-state: paused;
}