/* ===== CSS 变量 ===== */
:root {
  --c-bg-dark: #0A1A3F;
  --c-bg-dark-2: #1A2B5C;
  --c-primary: #4A7BFF;
  --c-secondary: #6B5BFF;
  --c-accent: #00D4FF;
  --c-white: #FFFFFF;
  --c-text-dark: #1A2233;
  --c-text-gray: #5A6378;
  --c-text-light: #B8C0D4;
  --c-border: #E8ECF4;
  --c-card-shadow: 0 8px 30px rgba(20, 40, 90, 0.08);
  --c-card-shadow-hover: 0 16px 50px rgba(20, 40, 90, 0.16);
  --radius: 12px;
  --radius-sm: 8px;
  --radius-lg: 20px;
  --radius-pill: 50px;
  --max-width: 1200px;
  --font: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
}

/* ===== 重置 ===== */
* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  color: var(--c-text-dark);
  line-height: 1.7;
  background: var(--c-white);
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }
ul { list-style: none; }
img { max-width: 100%; display: block; }

/* ===== 通用容器 ===== */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

.section { padding: 90px 0; }
.section-sm { padding: 60px 0; }

.section-title {
  text-align: center;
  margin-bottom: 12px;
  font-size: 36px;
  font-weight: 700;
  color: var(--c-text-dark);
}
.section-title.light { color: var(--c-white); }

.section-subtitle {
  text-align: center;
  font-size: 16px;
  color: var(--c-text-gray);
  margin-bottom: 50px;
}
.section-subtitle.light { color: var(--c-text-light); }

.section-tag {
  display: inline-block;
  padding: 6px 18px;
  background: rgba(74, 123, 255, 0.1);
  color: var(--c-primary);
  border-radius: var(--radius-pill);
  font-size: 14px;
  font-weight: 500;
  margin-bottom: 18px;
}

/* ===== 按钮 ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 36px;
  border-radius: var(--radius-pill);
  font-size: 16px;
  font-weight: 500;
  cursor: pointer;
  border: none;
  transition: all 0.3s ease;
  white-space: nowrap;
}
.btn-primary {
  background: linear-gradient(135deg, var(--c-primary), var(--c-secondary));
  color: var(--c-white);
  box-shadow: 0 6px 20px rgba(74, 123, 255, 0.35);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 30px rgba(74, 123, 255, 0.5);
}
.btn-outline {
  background: transparent;
  color: var(--c-white);
  border: 1.5px solid rgba(255, 255, 255, 0.5);
}
.btn-outline:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--c-white);
}
.btn-outline-dark {
  background: transparent;
  color: var(--c-primary);
  border: 1.5px solid var(--c-primary);
}
.btn-outline-dark:hover {
  background: var(--c-primary);
  color: var(--c-white);
}

/* ===== 导航栏 ===== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 18px 0;
  transition: all 0.3s ease;
  background: transparent;
}
.navbar.scrolled {
  background: rgba(10, 26, 63, 0.95);
  backdrop-filter: blur(10px);
  padding: 12px 0;
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.15);
}
.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 17px;
  font-weight: 700;
  color: var(--c-white);
  white-space: nowrap;
}
.nav-logo .logo-icon {
  width: 38px;
  height: 38px;
  background: linear-gradient(135deg, var(--c-accent), var(--c-primary));
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  color: var(--c-white);
}
.nav-menu {
  display: flex;
  align-items: center;
  gap: 36px;
}
.nav-menu a {
  color: rgba(255, 255, 255, 0.8);
  font-size: 15px;
  font-weight: 400;
  transition: color 0.3s;
  position: relative;
}
.nav-menu a:hover, .nav-menu a.active {
  color: var(--c-white);
}
.nav-menu a.active::after {
  content: "";
  position: absolute;
  bottom: -6px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--c-accent);
  border-radius: 2px;
}
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 6px;
}
.nav-toggle span {
  width: 26px;
  height: 2px;
  background: var(--c-white);
  border-radius: 2px;
  transition: all 0.3s;
}
/* 导航栏右侧登录态 */
#navAuth {
  display: flex;
  align-items: center;
  gap: 18px;
}
#navAuth .nav-login {
  color: rgba(255,255,255,0.85);
  font-size: 15px;
  transition: color 0.3s;
}
#navAuth .nav-login:hover { color: #fff; }
#navAuth .nav-register { padding: 9px 24px; font-size: 14px; }
#navAuth .nav-user {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  color: #fff;
  font-size: 15px;
  font-weight: 500;
}
#navAuth .nav-user .nav-user-ico {
  width: 26px; height: 26px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--c-accent), var(--c-primary));
  display: inline-block;
}
#navAuth .nav-logout {
  color: rgba(255,255,255,0.7);
  font-size: 14px;
  transition: color 0.3s;
}
#navAuth .nav-logout:hover { color: var(--c-accent); }

/* ===== Hero 区 ===== */
.hero {
  position: relative;
  min-height: 640px;
  display: flex;
  align-items: center;
  background: linear-gradient(135deg, var(--c-bg-dark) 0%, var(--c-bg-dark-2) 50%, #2A1B5C 100%);
  overflow: hidden;
  padding-top: 80px;
}
.hero::before {
  content: "";
  position: absolute;
  top: -200px;
  right: -200px;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(74, 123, 255, 0.25), transparent 70%);
  border-radius: 50%;
}
.hero::after {
  content: "";
  position: absolute;
  bottom: -150px;
  left: -150px;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(0, 212, 255, 0.18), transparent 70%);
  border-radius: 50%;
}
.hero-bg-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 50px 50px;
  pointer-events: none;
}
.hero-content {
  position: relative;
  z-index: 2;
  max-width: 720px;
}
.hero-tag {
  display: inline-block;
  padding: 8px 20px;
  background: rgba(0, 212, 255, 0.12);
  border: 1px solid rgba(0, 212, 255, 0.3);
  color: var(--c-accent);
  border-radius: var(--radius-pill);
  font-size: 14px;
  margin-bottom: 24px;
}
.hero h1 {
  font-size: 52px;
  font-weight: 700;
  color: var(--c-white);
  line-height: 1.25;
  margin-bottom: 24px;
  white-space: nowrap;
}
.hero h1 .grad {
  background: linear-gradient(90deg, var(--c-accent), var(--c-primary));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.hero p {
  font-size: 18px;
  color: var(--c-text-light);
  margin-bottom: 36px;
  max-width: 560px;
}
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }

/* Hero 内页（子页面用） */
.hero-inner {
  position: relative;
  background: linear-gradient(135deg, var(--c-bg-dark) 0%, var(--c-bg-dark-2) 100%);
  padding: 160px 0 80px;
  overflow: hidden;
}
.hero-inner::before {
  content: "";
  position: absolute;
  top: -100px;
  right: -100px;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(74, 123, 255, 0.2), transparent 70%);
  border-radius: 50%;
}
.hero-inner h1 {
  position: relative;
  z-index: 2;
  font-size: 44px;
  font-weight: 700;
  color: var(--c-white);
  margin-bottom: 18px;
}
.hero-inner p {
  position: relative;
  z-index: 2;
  font-size: 17px;
  color: var(--c-text-light);
  max-width: 640px;
}

/* ===== 优势卡片网格 ===== */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.feature-card {
  background: var(--c-white);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  padding: 36px 30px;
  transition: all 0.3s ease;
  box-shadow: var(--c-card-shadow);
}
.feature-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--c-card-shadow-hover);
  border-color: transparent;
}
.feature-icon {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  background: linear-gradient(135deg, rgba(74,123,255,0.1), rgba(107,91,255,0.1));
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 22px;
  color: var(--c-primary);
}
.feature-card h3 {
  font-size: 19px;
  font-weight: 600;
  margin-bottom: 12px;
  color: var(--c-text-dark);
}
.feature-card p {
  font-size: 15px;
  color: var(--c-text-gray);
  line-height: 1.7;
}

/* ===== 服务/产品卡片 ===== */
.services-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.service-card {
  background: var(--c-white);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  padding: 34px 26px;
  transition: all 0.3s ease;
  box-shadow: var(--c-card-shadow);
  position: relative;
  overflow: hidden;
}
.service-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--c-primary), var(--c-secondary));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s ease;
}
.service-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--c-card-shadow-hover);
}
.service-card:hover::before { transform: scaleX(1); }
.service-icon {
  width: 52px;
  height: 52px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--c-primary), var(--c-secondary));
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  color: var(--c-white);
}
.service-card h3 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 10px;
}
.service-card p {
  font-size: 14px;
  color: var(--c-text-gray);
  margin-bottom: 16px;
}
.service-link {
  font-size: 14px;
  color: var(--c-primary);
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: gap 0.3s;
}
.service-link:hover { gap: 10px; }

/* ===== 行业频道卡片 ===== */
.channels-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.channel-card {
  position: relative;
  border-radius: var(--radius);
  padding: 40px 32px;
  overflow: hidden;
  min-height: 220px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: transform 0.3s ease;
  color: var(--c-white);
}
.channel-card:hover { transform: translateY(-6px); }
.channel-card.c1 { background: linear-gradient(135deg, #2B4Eff, #5B3FFF); }
.channel-card.c2 { background: linear-gradient(135deg, #0066FF, #00B4D4); }
.channel-card.c3 { background: linear-gradient(135deg, #6B3FFF, #B03FFF); }
.channel-card.c4 { background: linear-gradient(135deg, #00A8A8, #00D4AA); }
.channel-card.c5 { background: linear-gradient(135deg, #FF6B3F, #FF3F7F); }
.channel-card.c6 { background: linear-gradient(135deg, #3F5FFF, #00C4FF); }
.channel-card h3 {
  font-size: 22px;
  font-weight: 600;
  margin-bottom: 10px;
}
.channel-card p {
  font-size: 14px;
  opacity: 0.85;
  margin-bottom: 16px;
}
.channel-card .channel-link {
  font-size: 14px;
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

/* ===== 数据统计 ===== */
.stats-section {
  background: linear-gradient(135deg, var(--c-bg-dark), var(--c-bg-dark-2));
  padding: 70px 0;
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 30px;
  text-align: center;
}
.stat-item .stat-num {
  font-size: 44px;
  font-weight: 700;
  color: var(--c-accent);
  margin-bottom: 8px;
}
.stat-item .stat-num .plus { font-size: 30px; }
.stat-item .stat-label {
  font-size: 15px;
  color: var(--c-text-light);
}

/* ===== CTA 区 ===== */
.cta-section {
  background: linear-gradient(135deg, var(--c-primary), var(--c-secondary));
  padding: 70px 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.cta-section::before {
  content: "";
  position: absolute;
  top: -100px;
  left: 50%;
  transform: translateX(-50%);
  width: 700px;
  height: 400px;
  background: radial-gradient(circle, rgba(255,255,255,0.12), transparent 70%);
}
.cta-section h2 {
  position: relative;
  font-size: 34px;
  font-weight: 700;
  color: var(--c-white);
  margin-bottom: 14px;
}
.cta-section p {
  position: relative;
  font-size: 17px;
  color: rgba(255,255,255,0.85);
  margin-bottom: 32px;
}
.cta-section .btn {
  position: relative;
  background: var(--c-white);
  color: var(--c-primary);
}
.cta-section .btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 30px rgba(0,0,0,0.2);
}

/* ===== 关于页 - 业务领域 ===== */
.domain-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}
.domain-card {
  display: flex;
  gap: 22px;
  padding: 32px;
  background: var(--c-white);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  transition: all 0.3s ease;
  box-shadow: var(--c-card-shadow);
}
.domain-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--c-card-shadow-hover);
}
.domain-icon {
  flex-shrink: 0;
  width: 56px;
  height: 56px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--c-primary), var(--c-secondary));
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--c-white);
}
.domain-card h3 {
  font-size: 19px;
  font-weight: 600;
  margin-bottom: 8px;
}
.domain-card p {
  font-size: 15px;
  color: var(--c-text-gray);
}

/* ===== 发布流程 ===== */
.process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  position: relative;
}
.process-step {
  text-align: center;
  position: relative;
}
.process-num {
  width: 64px;
  height: 64px;
  margin: 0 auto 18px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--c-primary), var(--c-secondary));
  color: var(--c-white);
  font-size: 24px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 8px 24px rgba(74,123,255,0.3);
}
.process-step h3 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 8px;
}
.process-step p {
  font-size: 14px;
  color: var(--c-text-gray);
  padding: 0 10px;
}

/* ===== 信息列表（频道页） ===== */
.info-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.info-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 22px 28px;
  background: var(--c-white);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  transition: all 0.3s ease;
  box-shadow: var(--c-card-shadow);
}
.info-item:hover {
  transform: translateX(6px);
  border-color: var(--c-primary);
  box-shadow: var(--c-card-shadow-hover);
}
.info-item .info-tag {
  flex-shrink: 0;
  padding: 4px 12px;
  border-radius: 4px;
  font-size: 12px;
  font-weight: 500;
  margin-right: 16px;
}
.info-tag.supply { background: #E8F5E9; color: #2E7D32; }
.info-tag.demand { background: #FFF3E0; color: #E65100; }
.info-tag.promo { background: #E3F2FD; color: #1565C0; }
.info-tag.service { background: #F3E5F5; color: #7B1FA2; }
.info-tag.news { background: #ECEFF1; color: #455A64; }
.info-item .info-title {
  flex: 1;
  font-size: 16px;
  font-weight: 500;
  color: var(--c-text-dark);
}
.info-item .info-meta {
  flex-shrink: 0;
  font-size: 13px;
  color: var(--c-text-gray);
  margin-left: 20px;
}

/* ===== 联系页 ===== */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 50px;
  align-items: start;
}
.contact-info-card {
  background: var(--c-white);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  padding: 40px;
  box-shadow: var(--c-card-shadow);
}
.contact-info-card h3 {
  font-size: 22px;
  font-weight: 600;
  margin-bottom: 28px;
}
.contact-item {
  display: flex;
  gap: 16px;
  margin-bottom: 24px;
  align-items: flex-start;
}
.contact-item .ci-icon {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: linear-gradient(135deg, rgba(74,123,255,0.1), rgba(107,91,255,0.1));
  color: var(--c-primary);
  display: flex;
  align-items: center;
  justify-content: center;
}
.contact-item .ci-label {
  font-size: 13px;
  color: var(--c-text-gray);
  margin-bottom: 4px;
}
.contact-item .ci-value {
  font-size: 16px;
  font-weight: 500;
  color: var(--c-text-dark);
}
.contact-form {
  background: var(--c-white);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  padding: 40px;
  box-shadow: var(--c-card-shadow);
}
.contact-form h3 {
  font-size: 22px;
  font-weight: 600;
  margin-bottom: 28px;
}
.form-group { margin-bottom: 20px; }
.form-group label {
  display: block;
  font-size: 14px;
  font-weight: 500;
  margin-bottom: 8px;
  color: var(--c-text-dark);
}
.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 12px 16px;
  border: 1.5px solid var(--c-border);
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-family: var(--font);
  transition: border-color 0.3s;
  background: var(--c-white);
  color: var(--c-text-dark);
}
.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--c-primary);
}
.form-group textarea { resize: vertical; min-height: 120px; }

/* ===== FAQ ===== */
.faq-list { max-width: 800px; margin: 0 auto; }
.faq-item {
  background: var(--c-white);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  margin-bottom: 16px;
  overflow: hidden;
  box-shadow: var(--c-card-shadow);
}
.faq-q {
  padding: 22px 28px;
  font-size: 16px;
  font-weight: 500;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: background 0.3s;
}
.faq-q:hover { background: #F8FAFF; }
.faq-q .faq-icon {
  flex-shrink: 0;
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--c-primary);
  transition: transform 0.3s;
}
.faq-item.open .faq-q .faq-icon { transform: rotate(45deg); }
.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease, padding 0.3s ease;
  padding: 0 28px;
  color: var(--c-text-gray);
  font-size: 15px;
}
.faq-item.open .faq-a {
  max-height: 300px;
  padding: 0 28px 22px;
}

/* ===== 页脚 ===== */
.footer {
  background: var(--c-bg-dark);
  color: var(--c-text-light);
  padding: 60px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 50px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.footer-brand .nav-logo { margin-bottom: 18px; }
.footer-brand p {
  font-size: 14px;
  color: var(--c-text-light);
  line-height: 1.8;
  max-width: 320px;
}
.footer-col h4 {
  color: var(--c-white);
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 18px;
}
.footer-col ul li {
  margin-bottom: 12px;
}
.footer-col ul li a {
  font-size: 14px;
  color: var(--c-text-light);
  transition: color 0.3s;
}
.footer-col ul li a:hover { color: var(--c-accent); }
.footer-bottom {
  padding: 24px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 13px;
}
.footer-bottom a { color: var(--c-text-light); }
.footer-bottom a:hover { color: var(--c-accent); }
.footer-icp {
  display: flex;
  align-items: center;
  gap: 6px;
}

/* ===== 滚动渐入动画 ===== */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ===== 浅色背景区 ===== */
.bg-light { background: #F7F9FC; }
.bg-gradient-light { background: linear-gradient(180deg, #F7F9FC, var(--c-white)); }

/* ===== 认证页（登录/注册）通用 ===== */
.auth-page {
  min-height: 100vh;
  background: linear-gradient(135deg, var(--c-bg-dark) 0%, var(--c-bg-dark-2) 50%, #2A1B5C 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 100px 24px 60px;
  position: relative;
  overflow: hidden;
}
.auth-page::before {
  content: "";
  position: absolute;
  top: -150px;
  right: -150px;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(74,123,255,0.22), transparent 70%);
  border-radius: 50%;
}
.auth-page::after {
  content: "";
  position: absolute;
  bottom: -150px;
  left: -150px;
  width: 450px;
  height: 450px;
  background: radial-gradient(circle, rgba(0,212,255,0.16), transparent 70%);
  border-radius: 50%;
}
.auth-card {
  position: relative;
  z-index: 2;
  width: 100%;
  max-width: 440px;
  background: var(--c-white);
  border-radius: var(--radius-lg);
  padding: 44px 40px;
  box-shadow: 0 20px 60px rgba(0,0,0,0.25);
}
.auth-card .auth-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 20px;
  font-weight: 700;
  color: var(--c-text-dark);
  margin-bottom: 8px;
  justify-content: center;
}
.auth-card .auth-logo .logo-icon {
  width: 38px;
  height: 38px;
  background: linear-gradient(135deg, var(--c-accent), var(--c-primary));
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  color: var(--c-white);
}
.auth-card h2 {
  text-align: center;
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 6px;
}
.auth-card .auth-sub {
  text-align: center;
  font-size: 14px;
  color: var(--c-text-gray);
  margin-bottom: 30px;
}
.auth-card .btn-primary { width: 100%; margin-top: 6px; }
.auth-foot {
  text-align: center;
  font-size: 14px;
  color: var(--c-text-gray);
  margin-top: 22px;
}
.auth-foot a { color: var(--c-primary); font-weight: 500; }
.auth-back {
  position: fixed;
  top: 24px;
  left: 24px;
  z-index: 5;
  color: var(--c-white);
  font-size: 14px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  opacity: 0.8;
  transition: opacity 0.3s;
}
.auth-back:hover { opacity: 1; }

/* ===== 充值二维码弹窗 ===== */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(10, 18, 40, 0.65);
  backdrop-filter: blur(4px);
  z-index: 2000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 24px;
  opacity: 0;
  transition: opacity 0.3s ease;
}
.modal-overlay.show { display: flex; opacity: 1; }
.modal-box {
  background: var(--c-white);
  border-radius: var(--radius-lg);
  padding: 40px 36px 32px;
  width: 100%;
  max-width: 380px;
  text-align: center;
  transform: scale(0.92);
  transition: transform 0.3s ease;
}
.modal-overlay.show .modal-box { transform: scale(1); }
.modal-box h3 {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 8px;
}
.modal-box .modal-desc {
  font-size: 14px;
  color: var(--c-text-gray);
  margin-bottom: 24px;
}
.modal-qr {
  width: 220px;
  height: 220px;
  margin: 0 auto 18px;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--c-border);
  background: #fff;
}
.modal-qr img { width: 100%; height: 100%; object-fit: cover; }
.modal-amount {
  font-size: 15px;
  color: var(--c-text-gray);
  margin-bottom: 24px;
}
.modal-amount strong { color: var(--c-text-dark); font-size: 20px; }
.modal-box .btn { width: 100%; }

/* ===== 提示条 ===== */
.toast {
  position: fixed;
  top: 90px;
  left: 50%;
  transform: translateX(-50%) translateY(-20px);
  background: var(--c-text-dark);
  color: #fff;
  padding: 14px 28px;
  border-radius: var(--radius-pill);
  font-size: 15px;
  z-index: 3000;
  opacity: 0;
  pointer-events: none;
  transition: all 0.3s ease;
  box-shadow: 0 8px 30px rgba(0,0,0,0.2);
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }
.toast.success { background: #2E7D32; }
.toast.error { background: #C62828; }

/* ===== 个人中心 ===== */
.profile-header {
  background: linear-gradient(135deg, var(--c-bg-dark), var(--c-bg-dark-2));
  padding: 150px 0 70px;
  position: relative;
  overflow: hidden;
}
.profile-header::before {
  content: "";
  position: absolute;
  top: -120px;
  right: -100px;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(74,123,255,0.22), transparent 70%);
  border-radius: 50%;
}
.profile-card {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
}
.profile-avatar {
  width: 76px;
  height: 76px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--c-accent), var(--c-primary));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 32px;
  color: #fff;
  flex-shrink: 0;
}
.profile-info h2 {
  color: #fff;
  font-size: 26px;
  margin-bottom: 8px;
}
.profile-badges { display: flex; gap: 10px; flex-wrap: wrap; }
.badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 5px 14px;
  border-radius: var(--radius-pill);
  font-size: 13px;
  font-weight: 500;
}
.badge.member { background: linear-gradient(135deg, #FFB300, #FF8F00); color: #fff; }
.badge.verified { background: rgba(46,125,50,0.25); color: #81C784; border: 1px solid rgba(46,125,50,0.4); }
.badge.unverified { background: rgba(255,255,255,0.1); color: var(--c-text-light); border: 1px solid rgba(255,255,255,0.2); }
.badge.balance { background: rgba(0,212,255,0.15); color: var(--c-accent); border: 1px solid rgba(0,212,255,0.3); }

.profile-modules {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
  margin-top: -40px;
  position: relative;
  z-index: 3;
}
.module-card {
  background: #fff;
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  padding: 34px 32px;
  box-shadow: var(--c-card-shadow);
}
.module-card h3 {
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 6px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.module-card .module-desc {
  font-size: 14px;
  color: var(--c-text-gray);
  margin-bottom: 22px;
}
.module-status {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 16px;
  background: #F7F9FC;
  border-radius: var(--radius-sm);
  font-size: 14px;
  margin-bottom: 18px;
}
.module-status.ok { background: #E8F5E9; color: #2E7D32; }
.module-status.warn { background: #FFF8E1; color: #E65100; }
.recharge-amounts {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-bottom: 18px;
}
.recharge-amt {
  padding: 16px 0;
  text-align: center;
  border: 1.5px solid var(--c-border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 16px;
  font-weight: 600;
  transition: all 0.25s;
  color: var(--c-text-dark);
  background: #fff;
}
.recharge-amt:hover { border-color: var(--c-primary); }
.recharge-amt.selected {
  border-color: var(--c-primary);
  background: rgba(74,123,255,0.06);
  color: var(--c-primary);
}
.recharge-amt .amt-unit { font-size: 12px; color: var(--c-text-gray); font-weight: 400; }

.my-list-title {
  font-size: 20px;
  font-weight: 600;
  margin: 10px 0 20px;
}
.empty-state {
  text-align: center;
  padding: 40px 20px;
  color: var(--c-text-gray);
  font-size: 15px;
}
.empty-state a { color: var(--c-primary); font-weight: 500; }

/* ===== 信息列表卡片（首页/发布方展示） ===== */
.info-cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 22px;
}
.info-card {
  background: #fff;
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  padding: 26px 28px;
  box-shadow: var(--c-card-shadow);
  transition: all 0.3s ease;
  display: flex;
  flex-direction: column;
}
.info-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--c-card-shadow-hover);
  border-color: transparent;
}
.info-card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 14px;
}
.info-type-tag {
  padding: 4px 12px;
  border-radius: 4px;
  font-size: 12px;
  font-weight: 500;
  background: rgba(74,123,255,0.1);
  color: var(--c-primary);
}
.info-budget {
  font-size: 16px;
  font-weight: 700;
  color: #E65100;
}
.info-card h3 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 10px;
  line-height: 1.5;
}
.info-card .info-desc {
  font-size: 14px;
  color: var(--c-text-gray);
  margin-bottom: 18px;
  flex: 1;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.info-publisher {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 16px;
  border-top: 1px solid var(--c-border);
  flex-wrap: wrap;
  gap: 10px;
}
.info-pub-name {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  color: var(--c-text-dark);
  font-weight: 500;
}
.info-pub-phone {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  color: var(--c-primary);
  font-weight: 500;
}
.info-time {
  font-size: 12px;
  color: var(--c-text-gray);
}

/* ===== 引导提示块（发布页未满足条件） ===== */
.guide-block {
  text-align: center;
  padding: 50px 30px;
  background: #fff;
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  box-shadow: var(--c-card-shadow);
  max-width: 560px;
  margin: 0 auto;
}
.guide-block .guide-icon {
  width: 72px;
  height: 72px;
  margin: 0 auto 22px;
  border-radius: 50%;
  background: linear-gradient(135deg, rgba(74,123,255,0.1), rgba(107,91,255,0.1));
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--c-primary);
}
.guide-block h3 { font-size: 22px; margin-bottom: 12px; }
.guide-block p { font-size: 15px; color: var(--c-text-gray); margin-bottom: 26px; }

/* ===== 发布表单容器 ===== */
.form-card {
  background: #fff;
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  padding: 40px;
  box-shadow: var(--c-card-shadow);
  max-width: 760px;
  margin: 0 auto;
}
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

/* ===== 响应式 ===== */
@media (max-width: 992px) {
  .features-grid, .channels-grid { grid-template-columns: repeat(2, 1fr); }
  .services-grid, .process-grid { grid-template-columns: repeat(2, 1fr); }
  .domain-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 40px 20px; }
  .contact-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .hero h1 { font-size: 40px; }
}

@media (max-width: 768px) {
  .nav-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 280px;
    height: 100vh;
    background: rgba(10, 26, 63, 0.98);
    backdrop-filter: blur(10px);
    flex-direction: column;
    justify-content: center;
    padding: 40px;
    transition: right 0.3s ease;
    gap: 28px;
  }
  .nav-menu.open { right: 0; }
  .nav-toggle { display: flex; z-index: 1001; }
  .nav-toggle.open span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
  .nav-toggle.open span:nth-child(2) { opacity: 0; }
  .nav-toggle.open span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

  .hero h1 { font-size: 32px; }
  .hero p { font-size: 16px; }
  .section { padding: 60px 0; }
  .section-title { font-size: 28px; }
  .features-grid, .channels-grid, .services-grid, .process-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 30px; }
  .info-item { flex-wrap: wrap; }
  .info-item .info-meta { margin-left: 0; width: 100%; margin-top: 8px; }
  .hero-inner { padding: 130px 0 60px; }
  .hero-inner h1 { font-size: 32px; }
  .contact-info-card, .contact-form { padding: 28px; }
  .info-cards { grid-template-columns: 1fr; }
  .profile-modules { grid-template-columns: 1fr; }
  .recharge-amounts { grid-template-columns: repeat(3, 1fr); }
  .form-row { grid-template-columns: 1fr; }
  .form-card, .auth-card { padding: 30px 24px; }
  .modal-qr { width: 180px; height: 180px; }
}

/* ===== 信息详情页 ===== */
.detail-overview {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  background: #fff;
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  box-shadow: var(--c-card-shadow);
  margin-bottom: 30px;
  overflow: hidden;
}
.detail-overview .ov-item {
  padding: 22px 16px;
  border-right: 1px solid var(--c-border);
  text-align: center;
}
.detail-overview .ov-item:last-child { border-right: none; }
.ov-label {
  font-size: 12px;
  color: var(--c-text-gray);
  margin-bottom: 8px;
}
.ov-value {
  font-size: 16px;
  font-weight: 600;
  color: var(--c-text-dark);
}
.ov-id { font-size: 13px; color: var(--c-text-gray); word-break: break-all; }
.status-active { color: #2E7D32; font-size: 14px; }

.detail-main { min-width: 0; }
.detail-title {
  font-size: 26px;
  font-weight: 700;
  line-height: 1.5;
  margin-bottom: 26px;
  color: var(--c-text-dark);
}
.detail-block {
  background: #fff;
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  padding: 30px 32px;
  box-shadow: var(--c-card-shadow);
  margin-bottom: 24px;
}
.detail-block-title {
  position: relative;
  font-size: 18px;
  font-weight: 600;
  color: var(--c-text-dark);
  margin-bottom: 18px;
  padding-left: 14px;
}
.detail-block-title::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 4px;
  height: 18px;
  background: linear-gradient(135deg, var(--c-primary), var(--c-secondary));
  border-radius: 2px;
}
.detail-desc {
  font-size: 16px;
  color: #3A4258;
  line-height: 2;
  white-space: pre-wrap;
}
.detail-mode-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
}
.mode-item {
  padding: 16px 18px;
  background: #F7F9FC;
  border-radius: var(--radius-sm);
  border-left: 3px solid var(--c-primary);
}
.mode-item-t {
  font-size: 15px;
  font-weight: 600;
  color: var(--c-text-dark);
  margin-bottom: 4px;
}
.mode-item-d {
  font-size: 13px;
  color: var(--c-text-gray);
  line-height: 1.6;
}
.detail-steps {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}
.step-item {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  padding: 16px 18px;
  background: #fff;
  border: 1px solid var(--c-border);
  border-radius: var(--radius-sm);
  transition: all 0.3s;
}
.step-item:hover {
  border-color: var(--c-primary);
  box-shadow: 0 6px 20px rgba(74,123,255,0.1);
}
.step-n {
  flex-shrink: 0;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--c-primary), var(--c-secondary));
  color: #fff;
  font-size: 14px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
}
.step-t {
  font-size: 15px;
  font-weight: 600;
  color: var(--c-text-dark);
  margin-bottom: 4px;
}
.step-d {
  font-size: 13px;
  color: var(--c-text-gray);
  line-height: 1.6;
}
.detail-notice {
  list-style: none;
  padding: 0;
}
.detail-notice li {
  position: relative;
  padding: 10px 0 10px 26px;
  font-size: 14px;
  color: var(--c-text-gray);
  line-height: 1.8;
  border-bottom: 1px dashed var(--c-border);
}
.detail-notice li:last-child { border-bottom: none; }
.detail-notice li::before {
  content: "";
  position: absolute;
  left: 6px;
  top: 18px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--c-primary);
}

.detail-side { min-width: 0; }
.detail-side .contact-info-card { padding: 30px 28px; position: sticky; top: 100px; }
.detail-side .contact-info-card h3 {
  font-size: 18px;
  margin-bottom: 22px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--c-border);
}
.detail-side .contact-item { margin-bottom: 18px; }
.detail-side .contact-item .ci-icon { width: 38px; height: 38px; }
.detail-side .contact-item .ci-value { font-size: 15px; }
.contact-tip {
  margin-top: 16px;
  padding: 10px 14px;
  background: #FFF8E1;
  border-radius: var(--radius-sm);
  font-size: 12px;
  color: #E65100;
  text-align: center;
}
.side-notice {
  margin-top: 20px;
  padding: 20px 22px;
  background: linear-gradient(135deg, rgba(74,123,255,0.06), rgba(107,91,255,0.06));
  border-radius: var(--radius);
  border: 1px solid rgba(74,123,255,0.12);
}
.side-notice-t {
  font-size: 14px;
  font-weight: 600;
  color: var(--c-primary);
  margin-bottom: 8px;
}
.side-notice p {
  font-size: 13px;
  color: var(--c-text-gray);
  line-height: 1.7;
}

.detail-related { margin-top: 50px; }
.related-title {
  font-size: 22px;
  font-weight: 700;
  color: var(--c-text-dark);
  margin-bottom: 24px;
  text-align: center;
}
.related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}
.related-card {
  display: block;
  background: #fff;
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  padding: 22px 24px;
  box-shadow: var(--c-card-shadow);
  transition: all 0.3s;
}
.related-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--c-card-shadow-hover);
  border-color: transparent;
}
.related-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}
.related-budget { font-size: 14px; font-weight: 600; color: #E65100; }
.related-card h4 {
  font-size: 16px;
  font-weight: 600;
  color: var(--c-text-dark);
  line-height: 1.5;
  margin-bottom: 10px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.related-pub {
  font-size: 13px;
  color: var(--c-text-gray);
  padding-top: 10px;
  border-top: 1px solid var(--c-border);
}

/* 详情页响应式 */
@media (max-width: 992px) {
  .detail-overview { grid-template-columns: repeat(3, 1fr); }
  .detail-overview .ov-item:nth-child(3) { border-right: none; }
  .related-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
  .detail-overview { grid-template-columns: repeat(2, 1fr); }
  .detail-overview .ov-item { border-right: none; border-bottom: 1px solid var(--c-border); }
  .detail-mode-grid, .detail-steps { grid-template-columns: 1fr; }
  .related-grid { grid-template-columns: 1fr; }
  .detail-side .contact-info-card { position: static; }
  .detail-block { padding: 22px 20px; }
  .detail-title { font-size: 22px; }
}

/* ===== 注册协议勾选 ===== */
.agreement-group { margin-bottom: 22px; }
.agree-label {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  cursor: pointer;
  font-size: 14px;
  color: var(--c-text-gray);
  line-height: 1.6;
}
.agree-label input[type="checkbox"] {
  flex-shrink: 0;
  width: 16px;
  height: 16px;
  margin-top: 3px;
  accent-color: var(--c-primary);
  cursor: pointer;
}
.agree-label a { color: var(--c-primary); }
.agree-label a:hover { text-decoration: underline; }

/* ===== 法律协议正文 ===== */
.legal-doc {
  max-width: 860px;
  margin: 0 auto;
  background: #fff;
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  padding: 44px 48px;
  box-shadow: var(--c-card-shadow);
}
.legal-update {
  font-size: 13px;
  color: var(--c-text-gray);
  margin-bottom: 28px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--c-border);
}
.legal-h2 {
  font-size: 19px;
  font-weight: 700;
  color: var(--c-text-dark);
  margin: 28px 0 14px;
}
.legal-doc p {
  font-size: 15px;
  color: #3A4258;
  line-height: 1.9;
  margin-bottom: 10px;
}
.legal-doc p strong { color: var(--c-text-dark); }

@media (max-width: 768px) {
  .legal-doc { padding: 28px 22px; }
  .legal-h2 { font-size: 17px; }
  .legal-doc p { font-size: 14px; }
}

/* ===== 信息列表分页 ===== */
.info-pager {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 8px;
  margin-top: 40px;
  flex-wrap: wrap;
}
.page-btn {
  min-width: 40px;
  height: 40px;
  padding: 0 14px;
  border: 1px solid var(--c-border);
  background: #fff;
  color: var(--c-text-dark);
  border-radius: var(--radius-sm);
  font-size: 14px;
  cursor: pointer;
  transition: all 0.25s;
}
.page-btn:hover:not(.disabled):not(.active) {
  border-color: var(--c-primary);
  color: var(--c-primary);
}
.page-btn.active {
  background: linear-gradient(135deg, var(--c-primary), var(--c-secondary));
  border-color: transparent;
  color: #fff;
}
.page-btn.disabled {
  color: var(--c-text-light);
  cursor: not-allowed;
}