/* ===========================
   Steel Industry Website
   Global Stylesheet
   =========================== */

/* ===== Design Tokens ===== */
:root {
  /* Colors */
  --color-primary: #1a3a5c;
  --color-primary-light: #2d5483;
  --color-primary-dark: #0f2540;
  --color-accent: #c0a062;
  --color-accent-light: #d4b87a;
  --color-bg: #f5f6f8;
  --color-bg-white: #ffffff;
  --color-bg-secondary: #eef0f3;
  --color-text: #2c3e50;
  --color-text-secondary: #6b7c8c;
  --color-text-light: #9ba8b5;
  --color-border: #dde2e8;
  --color-up: #d63031;
  --color-down: #00a877;
  --color-warning: #f39c12;
  --color-member: #8e44ad;

  /* Typography */
  --font-sans: "Microsoft YaHei", "PingFang SC", "Helvetica Neue", Arial, sans-serif;
  --font-mono: "DIN Alternate", "Roboto Mono", "Consolas", monospace;

  /* Spacing */
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 40px;
  --space-2xl: 64px;

  /* Layout */
  --container-max: 1200px;
  --navbar-height: 64px;

  /* Radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;

  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
  --shadow-lg: 0 8px 30px rgba(0,0,0,0.12);

  /* Transitions */
  --transition: all 0.25s ease;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-sans);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.6;
  font-size: 14px;
}

a { color: var(--color-primary); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--color-accent); }
img { max-width: 100%; display: block; }
ul, ol { list-style: none; }
button { cursor: pointer; border: none; font-family: inherit; }
input, textarea, select { font-family: inherit; font-size: inherit; }

/* ===== Layout Utilities ===== */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.container-narrow {
  max-width: 800px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.flex { display: flex; }
.flex-center { display: flex; align-items: center; justify-content: center; }
.flex-between { display: flex; align-items: center; justify-content: space-between; }
.flex-wrap { flex-wrap: wrap; }
.gap-sm { gap: var(--space-sm); }
.gap-md { gap: var(--space-md); }
.gap-lg { gap: var(--space-lg); }

.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--space-lg); }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-lg); }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-lg); }

.text-center { text-align: center; }
.text-right { text-align: right; }
.text-up { color: var(--color-up); }
.text-down { color: var(--color-down); }
.text-secondary { color: var(--color-text-secondary); }
.text-accent { color: var(--color-accent); }
.text-primary { color: var(--color-primary); }

.mt-sm { margin-top: var(--space-sm); }
.mt-md { margin-top: var(--space-md); }
.mt-lg { margin-top: var(--space-lg); }
.mt-xl { margin-top: var(--space-xl); }
.mb-sm { margin-bottom: var(--space-sm); }
.mb-md { margin-bottom: var(--space-md); }
.mb-lg { margin-bottom: var(--space-lg); }
.mb-xl { margin-bottom: var(--space-xl); }

/* ===== Typography ===== */
h1, h2, h3, h4, h5, h6 { font-weight: 600; line-height: 1.3; color: var(--color-primary); }
h1 { font-size: 1.75rem; }
h2 { font-size: 1.5rem; }
h3 { font-size: 1.25rem; }
h4 { font-size: 1.1rem; }
h5 { font-size: 1rem; }
h6 { font-size: 0.9rem; }

.section-title {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--color-primary);
  position: relative;
  padding-left: 16px;
  margin-bottom: var(--space-lg);
}
.section-title::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 4px;
  height: 20px;
  background: var(--color-accent);
  border-radius: 2px;
}

.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-lg);
}
.section-header h2 {
  position: relative;
  padding-left: 16px;
}
.section-header h2::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 4px;
  height: 20px;
  background: var(--color-accent);
  border-radius: 2px;
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 10px 24px;
  font-size: 14px;
  font-weight: 500;
  border-radius: var(--radius-md);
  transition: var(--transition);
  white-space: nowrap;
}
.btn-primary {
  background: var(--color-primary);
  color: #fff;
}
.btn-primary:hover {
  background: var(--color-primary-light);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}
.btn-accent {
  background: var(--color-accent);
  color: #fff;
}
.btn-accent:hover {
  background: var(--color-accent-light);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}
.btn-outline {
  border: 1px solid var(--color-primary);
  color: var(--color-primary);
  background: transparent;
}
.btn-outline:hover {
  background: var(--color-primary);
  color: #fff;
}
.btn-sm { padding: 6px 14px; font-size: 13px; }
.btn-lg { padding: 14px 32px; font-size: 16px; }
.btn-block { width: 100%; }

/* ===== Navbar ===== */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--color-primary);
  box-shadow: var(--shadow-sm);
}
.navbar-inner {
  max-width: var(--container-max);
  margin: 0 auto;
  height: var(--navbar-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--space-lg);
}
.navbar-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  color: #fff;
  font-size: 1.2rem;
  font-weight: 700;
  letter-spacing: 1px;
}
.navbar-logo .logo-icon {
  width: 36px;
  height: 36px;
  background: var(--color-accent);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 18px;
  font-weight: 700;
}
.navbar-menu {
  display: flex;
  align-items: center;
  gap: 0;
}
.navbar-menu a {
  color: rgba(255,255,255,0.85);
  padding: 8px 18px;
  font-size: 14px;
  font-weight: 500;
  border-radius: var(--radius-md);
  transition: var(--transition);
}
.navbar-menu a:hover, .navbar-menu a.active {
  color: #fff;
  background: rgba(255,255,255,0.1);
}
.navbar-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}
.navbar-actions .btn {
  padding: 6px 16px;
  font-size: 13px;
}
.navbar-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: transparent;
  padding: 8px;
}
.navbar-toggle span {
  width: 22px;
  height: 2px;
  background: #fff;
  border-radius: 1px;
  transition: var(--transition);
}

/* ===== Hero ===== */
.hero {
  background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 50%, var(--color-primary-light) 100%);
  color: #fff;
  padding: var(--space-2xl) 0;
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute;
  top: -20%; right: -10%;
  width: 70%;
  height: 140%;
  background: radial-gradient(circle at center, rgba(192,160,98,0.18) 0%, rgba(192,160,98,0) 60%);
  pointer-events: none;
}
.hero::after {
  content: "";
  position: absolute;
  bottom: -30%; left: -10%;
  width: 50%;
  height: 100%;
  background: radial-gradient(circle at center, rgba(255,255,255,0.08) 0%, rgba(255,255,255,0) 60%);
  pointer-events: none;
}
.hero-inner {
  position: relative;
  z-index: 1;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-lg);
  display: flex;
  align-items: center;
  gap: var(--space-2xl);
}
.hero-content { flex: 1 1 60%; min-width: 0; }
.hero h1 {
  color: #fff;
  font-size: 2.25rem;
  margin-bottom: var(--space-md);
}
.hero p {
  font-size: 1.1rem;
  color: rgba(255,255,255,0.85);
  max-width: 640px;
  margin-bottom: var(--space-xl);
  line-height: 1.7;
}
.hero-actions {
  display: flex;
  gap: var(--space-md);
  margin-bottom: var(--space-xl);
}
.hero-stats {
  display: flex;
  gap: var(--space-xl);
  padding-top: var(--space-lg);
  border-top: 1px solid rgba(255,255,255,0.15);
}
.hero-stat {
  text-align: center;
}
.hero-stat .num {
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-accent);
  font-family: var(--font-mono);
  line-height: 1.2;
}
.hero-stat .label {
  font-size: 13px;
  color: rgba(255,255,255,0.7);
  margin-top: 4px;
}

/* Hero WeChat QR Card — 透明化融进 Hero 深蓝底色 */
.hero-qr {
  flex: 0 0 auto;
  width: 280px;
  background: rgba(255,255,255,0.04);
  border-radius: 16px;
  padding: 20px 20px 18px;
  box-shadow: 0 20px 50px rgba(0,0,0,0.25), inset 0 0 0 1px rgba(192,160,98,0.35);
  text-align: center;
  position: relative;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}
.hero-qr::before {
  content: "";
  position: absolute;
  top: -6px; left: 50%;
  transform: translateX(-50%);
  width: 40px; height: 6px;
  background: var(--color-accent);
  border-radius: 3px;
  z-index: 2;
}
.hero-qr-badge {
  display: inline-block;
  font-size: 12px;
  color: var(--color-accent);
  background: rgba(192,160,98,0.18);
  padding: 3px 10px;
  border-radius: 10px;
  margin-bottom: 12px;
  font-weight: 600;
  letter-spacing: 0.5px;
  border: 1px solid rgba(192,160,98,0.35);
}
.hero-qr-img {
  width: 200px;
  height: 200px;
  margin: 0 auto;
  display: block;
  border-radius: 8px;
  background: transparent;
  /* 图本身已是透明 + 白色线条，直接展示 */
}
.hero-qr-title {
  font-size: 15px;
  font-weight: 600;
  color: #ffffff;
  margin-top: 14px;
  margin-bottom: 4px;
  letter-spacing: 0.5px;
}
.hero-qr-sub {
  font-size: 12px;
  color: rgba(255,255,255,0.7);
  line-height: 1.5;
}

/* ===== Section ===== */
.section {
  padding: var(--space-xl) 0;
}
.section-gray {
  background: var(--color-bg-secondary);
}

/* ===== Cards (News/Articles) ===== */
.card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
}
.card {
  background: var(--color-bg-white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  border: 1px solid var(--color-border);
}
.card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
}
.card-image {
  width: 100%;
  min-height: 110px;
  padding: 18px 18px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255,255,255,0.45);
  font-size: 0.9rem;
  letter-spacing: 2px;
}
.card-image-title {
  display: block;
  color: #fff;
  font-size: 15px;
  font-weight: 700;
  line-height: 1.45;
  letter-spacing: 0;
  text-align: center;
  word-break: break-word;
  opacity: 0.95;
}
.card-image-link {
  display: block;
}
.card-body {
  padding: var(--space-md);
}
.card-tag {
  display: inline-block;
  padding: 2px 10px;
  font-size: 11px;
  font-weight: 500;
  border-radius: 20px;
  margin-bottom: var(--space-sm);
}
.tag-news { background: #e3f2fd; color: #1565c0; }
.tag-analysis { background: #fff3e0; color: #e65100; }
.tag-knowledge { background: #e8f5e9; color: #2e7d32; }
.tag-policy { background: #fce4ec; color: #c62828; }
.tag-member { background: #f3e5f5; color: #6a1b9a; }
.card-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: var(--space-sm);
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.card-title:hover { color: var(--color-primary); }
.card-summary {
  font-size: 13px;
  color: var(--color-text-secondary);
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: var(--space-sm);
}
.card-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 12px;
  color: var(--color-text-light);
}
.card-member-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 2px 8px;
  font-size: 11px;
  background: var(--color-member);
  color: #fff;
  border-radius: var(--radius-sm);
}

/* ===== Price Table ===== */
.price-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-md);
  flex-wrap: wrap;
  gap: var(--space-sm);
}
.price-tabs {
  display: flex;
  gap: var(--space-sm);
}
.price-tab {
  padding: 6px 16px;
  font-size: 13px;
  border-radius: var(--radius-md);
  background: var(--color-bg-white);
  border: 1px solid var(--color-border);
  color: var(--color-text-secondary);
  cursor: pointer;
  transition: var(--transition);
}
.price-tab:hover { border-color: var(--color-primary); color: var(--color-primary); }
.price-tab.active {
  background: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
}
.price-update {
  font-size: 12px;
  color: var(--color-text-light);
}

.price-table-wrap {
  background: var(--color-bg-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  border: 1px solid var(--color-border);
}
.price-table {
  width: 100%;
  border-collapse: collapse;
}
.price-table th {
  background: var(--color-primary);
  color: #fff;
  font-weight: 500;
  font-size: 13px;
  padding: 12px var(--space-md);
  text-align: left;
  white-space: nowrap;
}
.price-table th:first-child { padding-left: var(--space-lg); }
.price-table td {
  padding: 12px var(--space-md);
  border-bottom: 1px solid var(--color-border);
  font-size: 14px;
}
.price-table td:first-child { padding-left: var(--space-lg); }
.price-table tbody tr:hover { background: var(--color-bg-secondary); }
.price-table tbody tr:last-child td { border-bottom: none; }
.price-num {
  font-family: var(--font-mono);
  font-weight: 600;
  letter-spacing: 1px;
  color: var(--color-text-secondary);
}
.price-unit {
  font-size: 12px;
  color: var(--color-text-secondary);
  margin-left: 2px;
}
.price-change {
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 13px;
}
.change-up { color: var(--color-up); }
.change-down { color: var(--color-down); }
.change-flat { color: var(--color-text-light); }

/* ===== Forms ===== */
.form-card {
  background: var(--color-bg-white);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--color-border);
  max-width: 600px;
  margin: 0 auto;
}
.form-group {
  margin-bottom: var(--space-md);
}
.form-label {
  display: block;
  font-size: 14px;
  font-weight: 500;
  color: var(--color-text);
  margin-bottom: 6px;
}
.form-label .required { color: var(--color-up); }
.form-input, .form-select, .form-textarea {
  width: 100%;
  padding: 10px 14px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: 14px;
  color: var(--color-text);
  background: var(--color-bg-white);
  transition: var(--transition);
}
.form-input:focus, .form-select:focus, .form-textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(26,58,92,0.1);
}
.form-textarea { min-height: 100px; resize: vertical; }
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
}
.form-hint {
  font-size: 12px;
  color: var(--color-text-light);
  margin-top: 4px;
}
.form-success {
  text-align: center;
  padding: var(--space-xl) 0;
}
.form-success .icon {
  width: 64px;
  height: 64px;
  background: #e8f5e9;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 32px;
  color: var(--color-down);
  margin: 0 auto var(--space-md);
}
.form-success h3 { margin-bottom: var(--space-sm); }

/* ===== Member Section ===== */
.member-banner {
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  color: #fff;
  text-align: center;
  margin-bottom: var(--space-xl);
}
.member-banner h2 { color: #fff; margin-bottom: var(--space-sm); }
.member-banner p { color: rgba(255,255,255,0.8); max-width: 500px; margin: 0 auto; }

.member-plans {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
  margin-bottom: var(--space-xl);
}
.plan-card {
  background: var(--color-bg-white);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  border: 2px solid var(--color-border);
  text-align: center;
  transition: var(--transition);
}
.plan-card:hover { border-color: var(--color-accent); }
.plan-card.featured { border-color: var(--color-accent); position: relative; }
.plan-card.featured::before {
  content: "推荐";
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-accent);
  color: #fff;
  font-size: 12px;
  padding: 2px 14px;
  border-radius: 20px;
}
.plan-name { font-size: 1.25rem; font-weight: 600; color: var(--color-primary); margin-bottom: var(--space-sm); }
.plan-price { font-size: 2rem; font-weight: 700; color: var(--color-accent); margin-bottom: var(--space-md); }
.plan-price .unit { font-size: 14px; color: var(--color-text-secondary); font-weight: 400; }
.plan-features li {
  font-size: 13px;
  color: var(--color-text-secondary);
  padding: 6px 0;
  border-bottom: 1px dashed var(--color-border);
}
.plan-features li:last-child { border-bottom: none; }

/* ===== Article Detail ===== */
.article-header {
  text-align: center;
  margin-bottom: var(--space-lg);
  padding-bottom: var(--space-lg);
  border-bottom: 1px solid var(--color-border);
}
.article-header h1 { font-size: 1.75rem; margin-bottom: var(--space-md); }
.article-meta {
  font-size: 13px;
  color: var(--color-text-light);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-md);
}
.article-body {
  font-size: 15px;
  line-height: 1.8;
  color: var(--color-text);
}
.article-body h2 { margin: var(--space-lg) 0 var(--space-md); }
.article-body h3 { margin: var(--space-md) 0 var(--space-sm); }
.article-body p { margin-bottom: var(--space-md); }
.article-body ul, .article-body ol {
  margin: var(--space-md) 0;
  padding-left: var(--space-lg);
}
.article-body ul li, .article-body ol li { margin-bottom: 6px; }
.article-body ul { list-style: disc; }
.article-body ol { list-style: decimal; }
.article-body blockquote {
  border-left: 4px solid var(--color-accent);
  padding: var(--space-md) var(--space-lg);
  background: var(--color-bg-secondary);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  margin: var(--space-md) 0;
  color: var(--color-text-secondary);
}
.article-body table {
  width: 100%;
  border-collapse: collapse;
  margin: var(--space-md) 0;
}
.article-body table th, .article-body table td {
  border: 1px solid var(--color-border);
  padding: 8px 12px;
  font-size: 14px;
}
.article-body table th {
  background: var(--color-primary);
  color: #fff;
}

.member-lock {
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  text-align: center;
  color: #fff;
  margin: var(--space-lg) 0;
}
.member-lock h3 { color: #fff; margin-bottom: var(--space-sm); }
.member-lock p { color: rgba(255,255,255,0.8); margin-bottom: var(--space-md); }
.member-lock input {
  padding: 10px 16px;
  border: none;
  border-radius: var(--radius-md);
  font-size: 14px;
  width: 240px;
  margin-right: var(--space-sm);
}

/* ===== Contact Section ===== */
.contact-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-xl);
  align-items: start;
}
.contact-info {
  background: var(--color-bg-white);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border);
}
.contact-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
  padding: var(--space-md) 0;
  border-bottom: 1px solid var(--color-border);
}
.contact-item:last-child { border-bottom: none; }
.contact-item .icon-box {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  flex-shrink: 0;
}
.icon-phone { background: #e3f2fd; color: #1565c0; }
.icon-email { background: #e8f5e9; color: #2e7d32; }
.icon-wechat { background: #e8f5e9; color: #2e7d32; }
.icon-address { background: #fff3e0; color: #e65100; }
.contact-item .label { font-size: 13px; color: var(--color-text-light); margin-bottom: 2px; }
.contact-item .value { font-size: 15px; color: var(--color-text); font-weight: 500; }

.qr-box {
  text-align: center;
  padding: var(--space-md);
}
.qr-placeholder {
  width: 160px;
  height: 160px;
  background: var(--color-bg-secondary);
  border: 2px dashed var(--color-border);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--space-sm);
  font-size: 12px;
  color: var(--color-text-light);
}

/* ===== Breadcrumb ===== */
.breadcrumb {
  padding: var(--space-md) 0;
  font-size: 13px;
  color: var(--color-text-light);
}
.breadcrumb a { color: var(--color-text-secondary); }
.breadcrumb a:hover { color: var(--color-primary); }
.breadcrumb span { margin: 0 6px; }

/* ===== Filter Bar ===== */
.filter-bar {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
  flex-wrap: wrap;
  padding: var(--space-md);
  background: var(--color-bg-white);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
}
.filter-group {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}
.filter-label { font-size: 13px; color: var(--color-text-secondary); font-weight: 500; }
/* ===== Category Nav (Top Filter, numbered) ===== */
.category-nav {
  display: flex;
  flex-wrap: nowrap;
  align-items: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-md);
  overflow-x: auto;
}
.category-nav-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  font-size: 13px;
  border-radius: 20px;
  border: 1px solid var(--color-border);
  background: var(--color-bg-white);
  color: var(--color-text-secondary);
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
  text-decoration: none;
}
.category-nav-item:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}
.category-nav-item.active {
  background: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
}
.category-nav-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--color-bg-secondary);
  color: var(--color-text-secondary);
  font-size: 11px;
  font-weight: 600;
}
.category-nav-item.active .category-nav-num {
  background: rgba(255,255,255,0.25);
  color: #fff;
}
.category-nav-item:hover .category-nav-num {
  background: var(--color-primary);
  color: #fff;
}
.category-nav-more {
  margin-left: auto;
  font-size: 13px;
  color: var(--color-primary);
  white-space: nowrap;
}

/* ===== Filter Bar (legacy, used on news list page) ===== */
.filter-bar {
  background: var(--color-bg-white);
  padding: var(--space-md);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
}
.filter-group {
  display: flex;
  flex-wrap: nowrap;
  align-items: center;
  gap: var(--space-sm);
  overflow-x: auto;
}
.filter-label { font-size: 13px; color: var(--color-text-secondary); font-weight: 500; }
.filter-btn {
  padding: 4px 14px;
  font-size: 13px;
  border-radius: 20px;
  border: 1px solid var(--color-border);
  background: var(--color-bg-white);
  color: var(--color-text-secondary);
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.filter-btn:hover { border-color: var(--color-primary); color: var(--color-primary); }
.filter-btn.active {
  background: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
}
.filter-btn-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--color-bg-secondary);
  color: var(--color-text-secondary);
  font-size: 10px;
  font-weight: 600;
}
.filter-btn.active .filter-btn-num {
  background: rgba(255,255,255,0.25);
  color: #fff;
}

/* ===== Pagination ===== */
.pagination {
  display: flex;
  justify-content: center;
  gap: var(--space-sm);
  margin-top: var(--space-xl);
}
.page-btn {
  padding: 6px 14px;
  border: 1px solid var(--color-border);
  background: var(--color-bg-white);
  border-radius: var(--radius-sm);
  font-size: 13px;
  color: var(--color-text-secondary);
  cursor: pointer;
  transition: var(--transition);
}
.page-btn:hover { border-color: var(--color-primary); color: var(--color-primary); }
.page-btn.active { background: var(--color-primary); color: #fff; border-color: var(--color-primary); }
.page-btn:disabled { opacity: 0.4; cursor: not-allowed; }

/* ===== Footer ===== */
.footer {
  background: var(--color-primary-dark);
  color: rgba(255,255,255,0.7);
  padding: var(--space-xl) 0 var(--space-lg);
}
.footer-inner {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-lg);
}
.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-xl);
  padding-bottom: var(--space-lg);
  border-bottom: 1px solid rgba(255,255,255,0.1);
}
.footer-brand h3 { color: #fff; margin-bottom: var(--space-sm); }
.footer-brand p { font-size: 13px; line-height: 1.7; }
.footer-col h4 { color: #fff; font-size: 14px; margin-bottom: var(--space-md); }
.footer-col a {
  display: block;
  color: rgba(255,255,255,0.6);
  font-size: 13px;
  padding: 4px 0;
  transition: var(--transition);
}
.footer-col a:hover { color: var(--color-accent); padding-left: 4px; }
.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: var(--space-md);
  font-size: 12px;
  color: rgba(255,255,255,0.4);
}
.footer-bottom a { color: rgba(255,255,255,0.4); }
.footer-bottom a:hover { color: var(--color-accent); }

/* ===== Floating Contact ===== */
.float-contact {
  position: fixed;
  right: 20px;
  bottom: 80px;
  z-index: 90;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.float-btn {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  color: #fff;
  cursor: pointer;
  transition: var(--transition);
  box-shadow: var(--shadow-md);
  border: none;
}
.float-btn:hover { transform: scale(1.1); }
.float-wechat { background: #07c160; }
.float-phone { background: var(--color-primary); }
.float-top { background: var(--color-text-secondary); }

/* ===== Misc ===== */
.empty-state {
  text-align: center;
  padding: var(--space-2xl) 0;
  color: var(--color-text-light);
}
.empty-state .icon { font-size: 48px; margin-bottom: var(--space-md); }

.badge {
  display: inline-block;
  padding: 2px 8px;
  font-size: 11px;
  font-weight: 500;
  border-radius: var(--radius-sm);
}
.badge-new { background: #e3f2fd; color: #1565c0; }
.badge-hot { background: #fce4ec; color: #c62828; }

.divider {
  height: 1px;
  background: var(--color-border);
  margin: var(--space-lg) 0;
  border: none;
}

.notice-bar {
  background: #fff8e1;
  border: 1px solid #ffe082;
  border-radius: var(--radius-md);
  padding: var(--space-sm) var(--space-md);
  font-size: 13px;
  color: #5d4037;
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-md);
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .footer-top { grid-template-columns: 1fr 1fr; }
  .member-plans { grid-template-columns: 1fr; max-width: 400px; margin-left: auto; margin-right: auto; }
}

@media (max-width: 768px) {
  .navbar-menu { display: none; }
  .navbar-toggle { display: flex; }
  .navbar-menu.mobile-open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: var(--navbar-height);
    left: 0;
    right: 0;
    background: var(--color-primary);
    padding: var(--space-md);
    gap: 0;
  }
  .navbar-menu.mobile-open a {
    width: 100%;
    padding: 12px var(--space-md);
    border-bottom: 1px solid rgba(255,255,255,0.1);
  }
  .navbar-actions { display: none; }

  .hero { padding: var(--space-xl) 0; }
  .hero-inner { flex-direction: column; gap: var(--space-xl); }
  .hero h1 { font-size: 1.5rem; }
  .hero p { font-size: 14px; }
  .hero-stats { gap: var(--space-lg); flex-wrap: wrap; }
  .hero-stat .num { font-size: 1.5rem; }
  .hero-qr { width: 100%; max-width: 280px; margin: 0 auto; }

  .card-grid { grid-template-columns: 1fr; }
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .footer-top { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .section-header { flex-direction: column; align-items: flex-start; gap: var(--space-sm); }

  .price-table { font-size: 12px; }
  .price-table th, .price-table td { padding: 8px 10px; }
  .price-table th:first-child, .price-table td:first-child { padding-left: var(--space-md); }

  .navbar-inner { padding: 0 var(--space-md); }
  .container { padding: 0 var(--space-md); }

  h1 { font-size: 1.5rem; }
  h2 { font-size: 1.25rem; }

  .float-contact { right: 12px; bottom: 60px; }
}

@media (max-width: 480px) {
  .hero h1 { font-size: 1.25rem; }
  .hero-actions { flex-direction: column; }
  .hero-actions .btn { width: 100%; }
  .price-toolbar { flex-direction: column; align-items: flex-start; }
  .price-tabs { overflow-x: auto; }
}