/* ============ 首页 ============ */
.hero {
  position: relative;
  overflow: hidden;
  min-height: 520px;
  background: radial-gradient(circle at 12% 15%, rgba(59, 130, 246, 0.25), transparent 30%),
    radial-gradient(circle at 85% 12%, rgba(139, 92, 246, 0.22), transparent 28%),
    linear-gradient(135deg, #08111f 0%, #101938 52%, #18203d 100%);
  color: #fff;
}

.hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
  background-size: 42px 42px;
  mask-image: linear-gradient(to bottom, #000, transparent 78%);
  pointer-events: none;
}

.hero-inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) 420px;
  gap: 48px;
  align-items: center;
  padding: 86px 0 78px;
}

.hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 12px;
  margin-bottom: 20px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: var(--radius-full);
  color: #bfdbfe;
  background: rgba(255, 255, 255, 0.06);
  backdrop-filter: blur(10px);
}

.hero h1 {
  font-size: clamp(34px, 6vw, 64px);
  line-height: 1.08;
  letter-spacing: -2px;
  margin-bottom: 22px;
}

.hero h1 span {
  background: linear-gradient(135deg, #93c5fd, #c4b5fd, #fde68a);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero p {
  max-width: 680px;
  color: #cbd5e1;
  font-size: 17px;
  line-height: 1.9;
  margin-bottom: 32px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.hero-card {
  position: relative;
  padding: 28px;
  border-radius: var(--radius-xl);
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.16);
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.28);
  backdrop-filter: blur(18px);
}

.hero-card h3 {
  font-size: 18px;
  margin-bottom: 18px;
}

.trend-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.trend-item {
  display: grid;
  grid-template-columns: 32px 1fr;
  gap: 12px;
  padding: 14px;
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.trend-rank {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  background: rgba(59, 130, 246, 0.22);
  color: #bfdbfe;
  font-weight: 700;
}

.trend-item strong {
  display: block;
  color: #fff;
  font-size: 14px;
  margin-bottom: 4px;
}

.trend-item span {
  color: #94a3b8;
  font-size: 12px;
}

.stats-strip {
  margin-top: -36px;
  position: relative;
  z-index: 2;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
  padding: 24px;
  background: #fff;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--color-border-light);
}

.stat-card strong {
  display: block;
  font-size: 28px;
  color: var(--color-text);
  line-height: 1;
  margin-bottom: 8px;
}

.stat-card span {
  color: var(--color-text-soft);
  font-size: 13px;
}

.category-bar {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.category-btn {
  padding: 9px 16px;
  border-radius: var(--radius-full);
  color: var(--color-text-soft);
  background: var(--color-bg-soft);
  border: 1px solid var(--color-border-light);
  transition: all var(--transition);
}

.category-btn:hover,
.category-btn.active {
  color: #fff;
  background: var(--gradient-primary);
  box-shadow: var(--shadow-md);
}

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

.article-card {
  display: flex;
  flex-direction: column;
  min-height: 100%;
  background: #fff;
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}

.article-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(59, 130, 246, 0.28);
}

.article-cover {
  position: relative;
  height: 168px;
  overflow: hidden;
}

.article-cover::after {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 15% 20%, rgba(255, 255, 255, 0.36), transparent 18%),
    linear-gradient(to top, rgba(0, 0, 0, 0.22), transparent 50%);
}

.article-cover .tag {
  position: absolute;
  z-index: 1;
  top: 14px;
  left: 14px;
}

.paid-mark {
  position: absolute;
  z-index: 1;
  right: 14px;
  top: 14px;
}

.article-body {
  padding: 20px;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.article-title {
  font-size: 18px;
  line-height: 1.45;
  margin-bottom: 10px;
}

.article-title a:hover {
  color: var(--color-primary);
}

.article-summary {
  color: var(--color-text-soft);
  font-size: 14px;
  line-height: 1.7;
  margin-bottom: 18px;
  flex: 1;
}

.article-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  color: var(--color-text-light);
  font-size: 12px;
}

.feature-band {
  background: var(--color-bg-soft);
}

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

.feature-card {
  padding: 28px;
  border-radius: var(--radius-lg);
  background: #fff;
  border: 1px solid var(--color-border-light);
  box-shadow: var(--shadow-sm);
}

.feature-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 14px;
  color: #fff;
  background: var(--gradient-primary);
  font-size: 22px;
  margin-bottom: 18px;
}

.feature-card h3 {
  font-size: 18px;
  margin-bottom: 10px;
}

.feature-card p {
  color: var(--color-text-soft);
  font-size: 14px;
  line-height: 1.8;
}

/* ============ 登录注册 ============ */
.auth-page {
  min-height: calc(100vh - var(--header-h));
  background:
    radial-gradient(circle at 10% 10%, rgba(59, 130, 246, 0.12), transparent 25%),
    radial-gradient(circle at 90% 20%, rgba(139, 92, 246, 0.12), transparent 26%),
    var(--color-bg-soft);
  padding: 56px 0;
}

.auth-layout {
  display: grid;
  grid-template-columns: 1fr 420px;
  gap: 52px;
  align-items: center;
}

.auth-intro {
  padding: 40px;
  border-radius: var(--radius-xl);
  background: var(--gradient-dark);
  color: #fff;
  min-height: 520px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.auth-intro::after {
  content: '';
  position: absolute;
  right: -80px;
  bottom: -80px;
  width: 240px;
  height: 240px;
  border-radius: 50%;
  background: rgba(59, 130, 246, 0.22);
}

.auth-intro h1 {
  font-size: 38px;
  line-height: 1.2;
  margin-bottom: 18px;
}

.auth-intro p {
  color: #cbd5e1;
  line-height: 1.9;
  margin-bottom: 28px;
}

.auth-benefits {
  display: grid;
  gap: 14px;
}

.auth-benefits li {
  color: #dbeafe;
  display: flex;
  align-items: center;
  gap: 10px;
}

.auth-card,
.profile-card,
.recharge-card {
  background: #fff;
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  padding: 30px;
}

.auth-tabs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  padding: 4px;
  border-radius: var(--radius-md);
  background: var(--color-bg-soft);
  margin-bottom: 26px;
}

.auth-tab {
  padding: 10px;
  border-radius: var(--radius-sm);
  color: var(--color-text-soft);
  font-weight: 500;
}

.auth-tab.active {
  background: #fff;
  color: var(--color-primary);
  box-shadow: var(--shadow-sm);
}

.form-group {
  margin-bottom: 18px;
}

.form-group label {
  display: block;
  font-size: 13px;
  font-weight: 500;
  margin-bottom: 7px;
  color: var(--color-text);
}

.form-input {
  width: 100%;
  height: 46px;
  padding: 0 14px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.form-input:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 4px rgba(59, 130, 246, 0.12);
}

.form-tip {
  margin-top: 14px;
  color: var(--color-text-soft);
  font-size: 13px;
  text-align: center;
}

/* ============ 文章详情 ============ */
.article-page {
  background: var(--color-bg-soft);
  padding: 40px 0 0;
}

.article-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 320px;
  gap: 32px;
  align-items: start;
}

.article-main {
  background: #fff;
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-xl);
  padding: 42px;
  box-shadow: var(--shadow-sm);
}

.detail-category {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 18px;
}

.detail-title {
  font-size: clamp(28px, 4vw, 42px);
  line-height: 1.22;
  letter-spacing: -1px;
  margin-bottom: 18px;
}

.detail-summary {
  color: var(--color-text-soft);
  font-size: 17px;
  line-height: 1.85;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--color-border-light);
  margin-bottom: 24px;
}

.detail-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  color: var(--color-text-light);
  font-size: 13px;
  margin-bottom: 30px;
}

.detail-cover {
  height: 280px;
  border-radius: var(--radius-lg);
  margin-bottom: 32px;
  position: relative;
  overflow: hidden;
}

.detail-cover::after {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 20% 22%, rgba(255, 255, 255, 0.36), transparent 18%),
    radial-gradient(circle at 80% 75%, rgba(255, 255, 255, 0.18), transparent 20%);
}

.article-content {
  position: relative;
}

.article-content p {
  color: #334155;
  font-size: 17px;
  line-height: 2.05;
  margin-bottom: 22px;
}

.locked-content {
  position: relative;
  max-height: 230px;
  overflow: hidden;
}

.locked-content::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, rgba(255, 255, 255, 0), #fff 70%);
}

.paywall {
  margin-top: -40px;
  position: relative;
  z-index: 2;
  padding: 34px;
  border-radius: var(--radius-xl);
  background:
    radial-gradient(circle at 20% 10%, rgba(245, 158, 11, 0.14), transparent 30%),
    #fffaf0;
  border: 1px solid rgba(245, 158, 11, 0.28);
  text-align: center;
  box-shadow: var(--shadow-md);
}

.paywall h3 {
  color: #92400e;
  font-size: 22px;
  margin-bottom: 10px;
}

.paywall p {
  color: #a16207;
  margin-bottom: 22px;
}

.article-sidebar {
  position: sticky;
  top: calc(var(--header-h) + 24px);
  display: grid;
  gap: 18px;
}

.side-card {
  background: #fff;
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-lg);
  padding: 22px;
  box-shadow: var(--shadow-sm);
}

.side-card h3 {
  font-size: 16px;
  margin-bottom: 16px;
}

.side-list {
  display: grid;
  gap: 14px;
}

.side-list a {
  display: block;
  color: var(--color-text);
  line-height: 1.55;
  font-size: 14px;
}

.side-list small {
  display: block;
  color: var(--color-text-light);
  margin-top: 4px;
}

/* ============ 充值页 ============ */
.page-hero {
  padding: 62px 0;
  color: #fff;
  background:
    radial-gradient(circle at 15% 15%, rgba(245, 158, 11, 0.22), transparent 28%),
    radial-gradient(circle at 80% 18%, rgba(59, 130, 246, 0.22), transparent 30%),
    var(--gradient-dark);
}

.page-hero h1 {
  font-size: clamp(30px, 5vw, 48px);
  margin-bottom: 14px;
}

.page-hero p {
  color: #cbd5e1;
  max-width: 680px;
  line-height: 1.85;
}

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

.plan-card {
  position: relative;
  padding: 28px;
  border-radius: var(--radius-xl);
  background: #fff;
  border: 2px solid var(--color-border-light);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
  cursor: pointer;
}

.plan-card:hover,
.plan-card.active {
  border-color: var(--color-vip);
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.plan-card.recommended::before {
  content: '推荐';
  position: absolute;
  right: 22px;
  top: -12px;
  padding: 4px 12px;
  border-radius: var(--radius-full);
  background: var(--gradient-vip);
  color: #fff;
  font-size: 12px;
  font-weight: 600;
}

.plan-name {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 10px;
}

.plan-price {
  color: var(--color-vip-dark);
  margin-bottom: 16px;
}

.plan-price strong {
  font-size: 42px;
  line-height: 1;
}

.plan-card ul {
  display: grid;
  gap: 10px;
  margin: 20px 0 26px;
  color: var(--color-text-soft);
}

.pay-methods {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin: 26px 0;
}

.pay-method {
  padding: 12px;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  text-align: center;
  color: var(--color-text-soft);
  cursor: pointer;
  transition: all var(--transition);
}

.pay-method.active,
.pay-method:hover {
  color: var(--color-primary);
  border-color: var(--color-primary);
  background: var(--color-primary-light);
}

/* ============ 个人中心 ============ */
.profile-wrap {
  padding: 44px 0;
  background: var(--color-bg-soft);
}

.profile-grid {
  display: grid;
  grid-template-columns: 360px 1fr;
  gap: 28px;
  align-items: start;
}

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

.profile-avatar {
  width: 86px;
  height: 86px;
  margin: 0 auto 18px;
  border-radius: 50%;
  background: var(--gradient-primary);
  color: #fff;
  font-size: 32px;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
}

.profile-avatar.vip {
  background: var(--gradient-vip);
}

.profile-user h2 {
  font-size: 22px;
  margin-bottom: 6px;
}

.profile-user p {
  color: var(--color-text-soft);
}

.vip-status {
  margin-top: 22px;
  padding: 18px;
  border-radius: var(--radius-lg);
  background: var(--color-bg-soft);
  text-align: left;
}

.vip-status.vip {
  background: linear-gradient(135deg, rgba(245, 158, 11, 0.12), rgba(245, 158, 11, 0.04));
}

.vip-status strong {
  display: block;
  margin-bottom: 6px;
}

.order-table {
  width: 100%;
  border-collapse: collapse;
}

.order-table th,
.order-table td {
  padding: 14px 10px;
  border-bottom: 1px solid var(--color-border-light);
  text-align: left;
  font-size: 14px;
}

.order-table th {
  color: var(--color-text-soft);
  font-weight: 500;
  background: var(--color-bg-soft);
}

.empty-state {
  padding: 40px 20px;
  text-align: center;
  color: var(--color-text-soft);
}

@media (max-width: 980px) {
  .hero-inner,
  .auth-layout,
  .article-layout,
  .profile-grid {
    grid-template-columns: 1fr;
  }

  .hero-card,
  .article-sidebar {
    position: static;
  }

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

@media (max-width: 640px) {
  .hero-inner {
    padding: 56px 0 64px;
  }

  .stats-grid,
  .article-grid,
  .feature-grid,
  .plans-grid,
  .pay-methods {
    grid-template-columns: 1fr;
  }

  .article-main,
  .auth-card,
  .profile-card,
  .recharge-card {
    padding: 22px;
  }

  .detail-cover {
    height: 190px;
  }

  .article-content p {
    font-size: 16px;
    line-height: 1.9;
  }

  .auth-intro {
    min-height: auto;
    padding: 28px;
  }
}