/* ============================================
   点金科技 SEM - 全局样式
   ============================================ */

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

:root {
  --primary: #082A4A;
  --primary-light: #0F4B7E;
  --accent: #00C6FF;
  --accent-gradient: linear-gradient(90deg, #00C6FF, #0072FF);
  --text: #e9ecef;
  --text-dark: #121826;
  --text-muted: #94a3b8;
  --card: rgba(255, 255, 255, 0.05);
  --card-hover: rgba(255, 255, 255, 0.08);
  --border: rgba(255, 255, 255, 0.1);
  --shadow: 0 10px 50px rgba(0, 0, 0, 0.25);
  --glass: rgba(8, 20, 35, 0.7);
  --radius: 16px;
  --transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  --section-space: 80px;
  --section-inner-top: 70px;
  --section-inner-bottom: 70px;
}

html { scroll-behavior: smooth; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  background: #05101F;
  color: var(--text);
  line-height: 1.7;
  overflow-x: hidden;
}

body::before {
  content: "";
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  background:
    radial-gradient(circle at 15% 5%, rgba(0, 114, 255, 0.05) 0%, transparent 40%),
    radial-gradient(circle at 85% 90%, rgba(0, 198, 255, 0.05) 0%, transparent 40%);
  z-index: -1;
}

/* --- Base --- */
.container { max-width: 1260px; margin: 0 auto; padding: 0 24px; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 16px 36px;
  border-radius: 12px;
  font-weight: 600;
  font-size: 16px;
  transition: var(--transition);
  cursor: pointer;
  position: relative;
  overflow: hidden;
  white-space: nowrap;
}

.btn::after {
  content: '';
  position: absolute;
  width: 100%; height: 100%;
  top: 0; left: -100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
  transition: left 0.6s;
}

.btn:hover::after { left: 100%; }

.btn-primary {
  background: var(--accent-gradient);
  color: #fff;
  box-shadow: 0 8px 25px rgba(0, 114, 255, 0.25);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 32px rgba(0, 114, 255, 0.35);
}

.btn-outline {
  border: 1px solid rgba(0, 198, 255, 0.3);
  color: var(--accent);
  background: transparent;
}

.btn-outline:hover {
  background: rgba(0, 198, 255, 0.08);
  border-color: var(--accent);
  transform: translateY(-3px);
}

.btn-phone {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  background: linear-gradient(135deg, #22c55e, #16a34a);
  color: #fff;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 600;
  white-space: nowrap;
  transition: all 0.3s ease;
  box-shadow: 0 4px 15px rgba(34, 197, 94, 0.3);
}

.btn-phone:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(34, 197, 94, 0.45);
  background: linear-gradient(135deg, #2dd96b, #16a34a);
}

/* --- Section Layout --- */
.section {
  padding: var(--section-inner-top) 0 var(--section-inner-bottom);
  position: relative;
}

.section + .section { margin-top: var(--section-space); }

.section-title {
  text-align: center;
  margin-bottom: 50px;
}

.section-title h2 {
  font-size: 38px;
  font-weight: 700;
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 14px;
}

.section-title p {
  color: var(--text-muted);
  max-width: 680px;
  margin: 0 auto;
  font-size: 17px;
}

/* --- Animations --- */
.fade-up {
  opacity: 0;
  transform: translateY(40px);
  transition: 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

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

/* --- Header & Navigation --- */
.header {
  position: sticky;
  top: 0;
  z-index: 9999;
  background: var(--glass);
  backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid var(--border);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 84px;
}

.logo {
  font-size: 26px;
  font-weight: 800;
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  letter-spacing: -0.3px;
}

.nav-menu { display: flex; gap: 20px; align-items: center; flex-wrap: nowrap; }

.nav-menu a {
  font-weight: 500;
  color: var(--text);
  transition: var(--transition);
  position: relative;
}

.nav-menu a::after {
  content: '';
  position: absolute;
  bottom: -6px; left: 0;
  width: 0; height: 2px;
  background: var(--accent);
  transition: width 0.3s;
}

.nav-menu a:hover { color: var(--accent); }
.nav-menu a:hover::after { width: 100%; }
.nav-menu a.active { color: var(--accent); }
.nav-menu a.active::after { width: 100%; }

.menu-toggle { display: none; font-size: 26px; color: var(--text); cursor: pointer; }

/* --- Hero --- */
.hero {
  min-height: calc(100vh - 84px);
  display: flex;
  align-items: center;
  position: relative;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  background: linear-gradient(135deg, rgba(5, 16, 31, 0.92) 0%, rgba(5, 16, 31, 0.7) 40%, rgba(5, 16, 31, 0.5) 70%, rgba(5, 16, 31, 0.2) 100%);
  z-index: 1;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0;
  width: 100%; height: 1px;
  background: linear-gradient(90deg, transparent, var(--border), transparent);
}

.hero-bg-pattern {
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  background:
    radial-gradient(circle at 70% 30%, rgba(0, 198, 255, 0.12) 0%, transparent 50%),
    radial-gradient(circle at 20% 70%, rgba(0, 114, 255, 0.08) 0%, transparent 50%),
    radial-gradient(circle at 90% 80%, rgba(0, 198, 255, 0.06) 0%, transparent 40%);
  z-index: 0;
}

.hero-inner { max-width: 780px; position: relative; z-index: 2; }

.hero h1 {
  font-size: 54px;
  line-height: 1.15;
  font-weight: 700;
  margin-bottom: 24px;
  letter-spacing: -0.8px;
}

.hero h1 span {
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero p {
  font-size: 20px;
  color: var(--text-muted);
  margin-bottom: 36px;
  line-height: 1.8;
}

.hero-btns { display: flex; gap: 20px; flex-wrap: wrap; }

/* --- Data Board --- */
.data-board {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 48px 36px;
  backdrop-filter: blur(10px);
}

.data-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.data-item { text-align: center; }

.data-num {
  font-size: 52px;
  font-weight: 700;
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 10px;
}

.data-text { color: var(--text-muted); font-size: 16px; }

/* --- Service & Coach Cards --- */
.service-grid, .coach-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.service-card, .coach-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px 28px;
  transition: var(--transition);
}

.service-card:hover, .coach-card:hover {
  background: var(--card-hover);
  transform: translateY(-6px);
  border-color: rgba(0, 198, 255, 0.2);
}

.service-icon, .coach-icon {
  width: 64px; height: 64px;
  background: linear-gradient(135deg, rgba(0, 114, 255, 0.1), rgba(0, 198, 255, 0.1));
  border-radius: 14px;
  margin-bottom: 24px;
  display: grid;
  place-items: center;
  color: var(--accent);
  font-size: 26px;
}

.service-card h3, .coach-card h3 { font-size: 20px; margin-bottom: 12px; font-weight: 600; }
.service-card p, .coach-card p { color: var(--text-muted); font-size: 15px; line-height: 1.7; }

.coach-section {
  background: linear-gradient(135deg, rgba(8, 42, 74, 0.3), rgba(5, 16, 31, 0.5));
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.coach-grid { grid-template-columns: repeat(3, 1fr); }

/* --- Price Cards --- */
.price-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }

.price-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 42px 32px;
  transition: var(--transition);
  position: relative;
}

.price-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 3px;
  background: var(--accent-gradient);
  border-radius: 20px 20px 0 0;
}

.price-card:hover { transform: translateY(-6px); background: var(--card-hover); }
.price-card h3 { font-size: 22px; margin-bottom: 16px; font-weight: 600; }
.price-tag { font-size: 30px; font-weight: 700; color: var(--accent); margin-bottom: 16px; }
.price-desc { color: var(--text-muted); margin-bottom: 24px; font-size: 15px; }
.price-list li { padding: 8px 0; font-size: 15px; position: relative; padding-left: 18px; }
.price-list li::before { content: '✓'; position: absolute; left: 0; color: var(--accent); font-weight: bold; }

/* --- Case Cards --- */
.case-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }

.case-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: var(--transition);
}

.case-card:hover { transform: translateY(-6px); background: var(--card-hover); }
.case-body { padding: 32px; }

.case-tag {
  display: inline-block;
  padding: 6px 12px;
  background: rgba(0, 198, 255, 0.1);
  color: var(--accent);
  font-size: 13px;
  border-radius: 8px;
  margin-bottom: 14px;
  font-weight: 500;
}

.case-card h3 { font-size: 20px; margin-bottom: 12px; font-weight: 600; }
.case-info { color: var(--text-muted); font-size: 15px; margin-bottom: 8px; }
.case-result { color: var(--accent); font-weight: 600; font-size: 16px; margin-bottom: 16px; }
.case-read { color: var(--accent); font-size: 15px; }

/* --- Article Cards --- */
.article-list { display: flex; flex-direction: column; gap: 20px; }

.article-item {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 32px;
  transition: var(--transition);
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 24px;
}

.article-item:hover {
  border-color: rgba(0, 198, 255, 0.25);
  background: var(--card-hover);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
}

.article-body { flex: 1; min-width: 0; }

.article-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 12px; }

.article-tag {
  display: inline-block;
  padding: 3px 10px;
  background: rgba(0, 198, 255, 0.1);
  color: var(--accent);
  font-size: 12px;
  border-radius: 6px;
  line-height: 1.6;
}

.article-title {
  font-size: 19px;
  font-weight: 600;
  margin-bottom: 10px;
  line-height: 1.5;
}

.article-title a {
  color: var(--text);
  transition: color 0.2s;
}

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

.article-desc {
  color: var(--text-muted);
  font-size: 15px;
  line-height: 1.7;
  margin-bottom: 14px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  font-size: 13px;
  color: var(--text-muted);
}

.article-meta span {
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.meta-author::before { content: "\270E"; font-size: 13px; }
.meta-source::before { content: "\1F3E2"; font-size: 12px; }
.meta-date::before { content: "\1F4C5"; font-size: 12px; }
.meta-views::before { content: "\1F441"; font-size: 12px; }

.article-read-btn {
  flex-shrink: 0;
  align-self: center;
  color: var(--accent);
  font-size: 14px;
  font-weight: 500;
  padding: 8px 18px;
  border: 1px solid rgba(0, 198, 255, 0.3);
  border-radius: 8px;
  transition: var(--transition);
  white-space: nowrap;
}

.article-read-btn:hover {
  background: rgba(0, 198, 255, 0.1);
  border-color: var(--accent);
}

/* --- Article Detail Page --- */
.article-breadcrumb {
  background: var(--card);
  border-bottom: 1px solid var(--border);
  padding: 14px 0;
  font-size: 14px;
  color: var(--text-muted);
}

.article-breadcrumb a {
  color: var(--accent);
  transition: var(--transition);
}

.article-breadcrumb a:hover { opacity: 0.8; }

.article-breadcrumb .sep {
  margin: 0 8px;
  color: var(--border);
}

.article-breadcrumb .current {
  color: var(--text);
}

.article-page {
  padding: 40px 0 60px;
  background: var(--bg);
}

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

.article-detail {
  background: var(--card);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  padding: 36px;
}

.article-detail-title {
  font-size: 26px;
  font-weight: 700;
  line-height: 1.5;
  margin-bottom: 20px;
  color: var(--text);
}

.article-detail-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 16px;
}

.article-detail-meta .meta-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  color: var(--text-muted);
}

.article-detail-meta .meta-item svg {
  color: var(--accent);
  flex-shrink: 0;
}

.article-detail-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 28px;
}

.article-tag-link {
  display: inline-block;
  padding: 4px 14px;
  font-size: 13px;
  color: var(--accent);
  background: rgba(0, 198, 255, 0.08);
  border: 1px solid rgba(0, 198, 255, 0.2);
  border-radius: 20px;
  transition: var(--transition);
}

.article-tag-link:hover {
  background: rgba(0, 198, 255, 0.15);
  border-color: var(--accent);
}

.article-detail-body {
  font-size: 16px;
  line-height: 1.9;
  color: var(--text);
}

.article-detail-body p {
  margin-bottom: 18px;
}

.article-detail-body h2 {
  font-size: 20px;
  font-weight: 600;
  margin: 32px 0 16px;
  padding-left: 12px;
  border-left: 3px solid var(--accent);
  color: var(--text);
}

.article-detail-body strong {
  color: var(--accent);
  font-weight: 600;
}

.article-detail-footer {
  margin-top: 36px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.8;
}

.article-detail-footer a {
  color: var(--accent);
  word-break: break-all;
}

.article-pager {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  margin-top: 24px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
  font-size: 14px;
}

.article-pager a {
  color: var(--accent);
  transition: var(--transition);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  max-width: 70%;
}

.article-pager a:hover { opacity: 0.8; }

.pager-disabled {
  color: var(--text-muted);
}

/* --- Article Sidebar --- */
.article-sidebar {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.sidebar-box {
  background: var(--card);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  padding: 24px;
}

.sidebar-title {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border);
  position: relative;
}

.sidebar-title::after {
  content: "";
  position: absolute;
  bottom: -1px;
  left: 0;
  width: 40px;
  height: 2px;
  background: var(--accent);
}

.sidebar-contact p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 16px;
}

.sidebar-phone {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px;
  background: rgba(0, 198, 255, 0.08);
  border: 1px solid rgba(0, 198, 255, 0.2);
  border-radius: 10px;
  color: var(--accent);
  font-size: 18px;
  font-weight: 600;
  transition: var(--transition);
}

.sidebar-phone:hover {
  background: rgba(0, 198, 255, 0.15);
  border-color: var(--accent);
}

.sidebar-articles {
  list-style: none;
}

.sidebar-articles li {
  border-bottom: 1px solid var(--border);
}

.sidebar-articles li:last-child {
  border-bottom: none;
}

.sidebar-articles a {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 12px;
  padding: 12px 0;
  transition: var(--transition);
}

.sidebar-articles a:hover {
  opacity: 0.8;
}

.sidebar-article-title {
  font-size: 14px;
  color: var(--text);
  line-height: 1.5;
  flex: 1;
}

.sidebar-article-date {
  font-size: 12px;
  color: var(--text-muted);
  white-space: nowrap;
  flex-shrink: 0;
}

.sidebar-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.sidebar-tags a {
  display: inline-block;
  padding: 5px 14px;
  font-size: 13px;
  color: var(--text-muted);
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 20px;
  transition: var(--transition);
}

.sidebar-tags a:hover {
  color: var(--accent);
  border-color: var(--accent);
  background: rgba(0, 198, 255, 0.08);
}

.article-grid-wide { max-width: 800px; margin: 0 auto; }

/* --- Breadcrumb --- */
.breadcrumb { padding: 24px 0; font-size: 14px; color: var(--text-muted); }
.breadcrumb a { color: var(--accent); }

/* --- Steps --- */
.step-wrap { margin-top: 40px; }
.step-list { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }

.step-item {
  text-align: center;
  padding: 24px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.step-num {
  width: 40px; height: 40px;
  margin: 0 auto 16px;
  line-height: 40px;
  border-radius: 50%;
  background: var(--accent-gradient);
  font-weight: bold;
}

/* --- Contact Form --- */
.contact-board {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 56px 48px;
  backdrop-filter: blur(10px);
  max-width: 800px;
  margin: 0 auto;
}

.contact-board h3 { font-size: 28px; text-align: center; margin-bottom: 8px; }
.contact-board > p { text-align: center; color: var(--text-muted); margin-bottom: 36px; font-size: 16px; }

.contact-form { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.contact-form .full { grid-column: 1 / -1; }
.contact-form label { display: block; font-size: 14px; margin-bottom: 6px; color: var(--text-muted); font-weight: 500; }

.contact-form input,
.contact-form select,
.contact-form textarea {
  width: 100%;
  padding: 14px 18px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border);
  border-radius: 10px;
  color: var(--text);
  font-size: 15px;
  font-family: inherit;
  transition: var(--transition);
  outline: none;
}

.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus {
  border-color: var(--accent);
  background: rgba(0, 198, 255, 0.04);
}

.contact-form textarea { resize: vertical; min-height: 100px; }
.contact-form .btn-primary { width: 100%; margin-top: 8px; }
.contact-form select option { background: #082A4A; color: var(--text); }

/* --- City Block (Footer) --- */
.city-block { padding: 48px 0; border-bottom: 1px solid var(--border); }
.city-title { font-size: 20px; font-weight: 600; margin-bottom: 20px; text-align: center; }
.city-list { display: grid; grid-template-columns: repeat(auto-fill, minmax(110px, 1fr)); gap: 14px; max-width: 1200px; margin: 0 auto; }

.city-list a {
  padding: 10px 14px;
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text-muted);
  transition: var(--transition);
  font-size: 15px;
  text-align: center;
  justify-self: center;
  width: 100%;
  max-width: 120px;
}

.city-list a:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(0, 198, 255, 0.05);
}

.city-current {
  color: var(--accent);
  font-size: 15px;
  padding: 10px 14px;
  border: 1px solid var(--accent);
  border-radius: 8px;
  display: block;
  font-weight: 600;
  text-align: center;
  justify-self: center;
  width: 100%;
  max-width: 120px;
}

.city-extra {
  display: none;
  grid-template-columns: repeat(auto-fill, minmax(110px, 1fr));
  gap: 14px;
  grid-column: 1 / -1;
}

.city-extra.expanded {
  display: grid;
}

.city-extra a {
  padding: 8px 18px;
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text-muted);
  transition: var(--transition);
  font-size: 15px;
}

.city-extra a:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(0, 198, 255, 0.05);
}

.city-toggle {
  display: block;
  padding: 10px 24px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: transparent;
  color: var(--accent);
  font-size: 14px;
  cursor: pointer;
  transition: var(--transition);
  font-family: inherit;
  grid-column: 1 / -1;
  justify-self: center;
  width: auto;
  min-width: 140px;
  margin-top: 8px;
}

.city-toggle:hover {
  border-color: var(--accent);
  background: rgba(0, 198, 255, 0.08);
}

/* --- City Intro Section --- */
.city-intro-wrap { max-width: 860px; margin: 0 auto; }

.city-intro-card {
  text-align: left;
  max-width: none;
}

.city-intro-card h3 {
  font-size: 20px;
  margin-bottom: 16px;
}

.city-intro-card p {
  color: var(--text-muted);
  font-size: 16px;
  line-height: 1.8;
  margin-bottom: 20px;
}

.city-intro-card p:last-child { margin-bottom: 0; }

/* --- Footer --- */
.footer {
  background: #061224;
  border-top: 1px solid var(--border);
  padding: 0 0 30px;
  margin-top: 80px;
}

.footer-top {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 32px;
  padding: 60px 0 32px;
  border-bottom: 1px solid var(--border);
}

.footer-col h4 { margin-bottom: 20px; font-size: 16px; font-weight: 600; color: #fff; }
.footer-col li { margin-bottom: 10px; }
.footer-col a { color: var(--text-muted); transition: var(--transition); font-size: 15px; }
.footer-col a:hover { color: var(--accent); padding-left: 4px; }

/* --- Friend Links --- */
.friend-link { padding: 24px 0; border-bottom: 1px solid var(--border); }
.friend-link h4 { font-size: 16px; font-weight: 600; margin-bottom: 16px; }
.friend-list { display: flex; flex-wrap: wrap; gap: 14px; }
.friend-list a { color: var(--text-muted); font-size: 15px; transition: var(--transition); }
.friend-list a:hover { color: var(--accent); }

.footer-bottom { text-align: center; padding-top: 24px; color: var(--text-muted); font-size: 14px; }

/* --- FAQ --- */
.faq-wrap { max-width: 800px; margin: 0 auto; }

.faq-item {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 32px;
  margin-bottom: 16px;
  transition: var(--transition);
}

.faq-item:hover { background: var(--card-hover); border-color: rgba(0, 198, 255, 0.2); }
.faq-item h3 { font-size: 18px; margin-bottom: 10px; font-weight: 600; }
.faq-item p { color: var(--text-muted); font-size: 15px; line-height: 1.7; }

/* --- Utilities --- */
.text-center { text-align: center; }
.btn-wrap { margin-top: 50px; text-align: center; }
.btn-wrap-center { text-align: center; margin-top: 32px; }
.section-gap { margin-top: 80px; }
.coach-3col { grid-template-columns: repeat(3, 1fr); }
.step-4col { grid-template-columns: repeat(4, 1fr); }
.section-compact-top { padding-top: 60px; }

/* --- Responsive: Tablet --- */
@media (max-width: 1024px) {
  :root {
    --section-space: 60px;
    --section-inner-top: 60px;
    --section-inner-bottom: 60px;
  }

  .service-grid, .data-grid { grid-template-columns: repeat(2, 1fr); }
  .price-cards, .case-cards, .coach-grid, .step-list { grid-template-columns: repeat(2, 1fr); }
  .footer-top { grid-template-columns: repeat(3, 1fr); gap: 32px; }
  .coach-3col, .step-4col { grid-template-columns: repeat(2, 1fr); }
  .article-layout { grid-template-columns: 1fr; }
  .article-sidebar { order: 2; }
}

/* --- Responsive: Mobile --- */
@media (max-width: 768px) {
  :root {
    --section-space: 48px;
    --section-inner-top: 50px;
    --section-inner-bottom: 50px;
  }

  .menu-toggle { display: block; }

  .nav-menu {
    position: fixed;
    left: -100%;
    top: 84px;
    flex-direction: column;
    background: var(--glass);
    backdrop-filter: blur(20px);
    width: 100%;
    height: calc(100vh - 84px);
    padding: 40px 0;
    transition: var(--transition);
  }

  .nav-menu.active { left: 0; }

  .hero h1 { font-size: 38px; }
  .hero p { font-size: 18px; }
  .section-title h2 { font-size: 32px; }

  .service-grid, .data-grid, .price-cards, .case-cards,
  .coach-grid, .step-list, .footer-top {
    grid-template-columns: 1fr;
  }

  .article-item { flex-direction: column; gap: 16px; padding: 20px; }
  .article-read-btn { align-self: flex-start; }

  .contact-form { grid-template-columns: 1fr; }
  .contact-board { padding: 36px 24px; }
  .coach-3col, .step-4col { grid-template-columns: 1fr; }
  .article-detail { padding: 24px 20px; }
  .article-detail-title { font-size: 22px; }
  .article-detail-body { font-size: 15px; }
  .article-detail-body h2 { font-size: 18px; }
  .article-pager { flex-direction: column; gap: 10px; }
  .article-pager a { max-width: 100%; }
}