/* roulang page: index */
/* ===== 设计变量 ===== */
:root {
  --color-primary: #2C5F7C;
  --color-primary-dark: #244A63;
  --color-primary-light: #E8F0F4;
  --color-accent: #B26A4B;
  --color-accent-light: #F7EBE3;
  --color-bg: #F7F6F3;
  --color-card: #FFFFFF;
  --color-sand: #F4EFE6;
  --color-border: #EAE6DE;
  --color-text: #2B2B2B;
  --color-text-light: #6B7280;
  --color-white: #FFFFFF;
  --font-sans: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
  --font-h1: clamp(32px, 4vw, 44px);
  --font-h2: clamp(24px, 2.5vw, 30px);
  --font-h3: clamp(20px, 1.5vw, 22px);
  --font-body: 16px;
  --font-small: 14px;
  --font-xs: 12px;
  --radius-card: 12px;
  --radius-btn: 8px;
  --radius-badge: 99px;
  --shadow-card: 0 2px 8px rgba(0,0,0,0.04);
  --shadow-hover: 0 8px 24px rgba(0,0,0,0.08);
  --container-width: 1200px;
  --header-height: 52px;
  --section-gap: 96px;
  --transition: all 0.3s ease;
}

/* ===== Reset ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-sans);
  font-size: var(--font-body);
  line-height: 1.8;
  color: var(--color-text);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: var(--color-primary); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--color-primary-dark); }
button { font-family: inherit; cursor: pointer; }
input, select, textarea { font-family: inherit; font-size: 14px; }
ul, ol { list-style: none; }

/* ===== 容器 ===== */
.container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
}
.reading-area {
  max-width: 760px;
  margin: 0 auto;
  line-height: 1.8;
}

/* ===== 按钮 ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 28px;
  border-radius: var(--radius-btn);
  font-size: 15px;
  font-weight: 600;
  line-height: 1.4;
  border: 1px solid transparent;
  transition: var(--transition);
  cursor: pointer;
  text-align: center;
  white-space: nowrap;
}
.btn:focus-visible {
  outline: 3px solid rgba(44, 95, 124, 0.3);
  outline-offset: 2px;
}
.btn-primary {
  background-color: var(--color-primary);
  color: var(--color-white);
}
.btn-primary:hover {
  background-color: var(--color-primary-dark);
  color: var(--color-white);
  transform: translateY(-2px);
  box-shadow: var(--shadow-hover);
}
.btn-primary:active {
  transform: translateY(0);
}
.btn-secondary {
  background-color: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}
.btn-secondary:hover {
  background-color: var(--color-primary);
  color: var(--color-white);
  transform: translateY(-2px);
}
.btn-secondary:active {
  transform: translateY(0);
}
.btn-accent {
  background-color: var(--color-accent);
  color: var(--color-white);
}
.btn-accent:hover {
  background-color: #9e5a3e;
  color: var(--color-white);
  transform: translateY(-2px);
}
.btn-lg { padding: 16px 40px; font-size: 16px; }
.btn-sm { padding: 8px 20px; font-size: 14px; }

/* ===== 导航 ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background-color: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--color-border);
  height: var(--header-height);
}
.header-inner {
  max-width: var(--container-width);
  margin: 0 auto;
  height: 100%;
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  padding: 0 24px;
  gap: 24px;
}
.header-left {
  display: flex;
  align-items: center;
  gap: 32px;
  min-width: 0;
}
.brand {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  font-size: 17px;
  color: var(--color-text);
  white-space: nowrap;
}
.brand:hover { color: var(--color-primary); }
.brand-icon {
  width: 28px;
  height: 28px;
  color: var(--color-primary);
  flex-shrink: 0;
}
.main-nav {
  display: flex;
  align-items: center;
  gap: 24px;
}
.main-nav a {
  font-size: 14px;
  font-weight: 500;
  color: var(--color-text-light);
  position: relative;
  padding: 6px 0;
}
.main-nav a:hover { color: var(--color-primary); }
.main-nav a.active {
  color: var(--color-primary);
  font-weight: 600;
}
.main-nav a.active::after {
  content: "";
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 100%;
  height: 2px;
  background-color: var(--color-primary);
  border-radius: 2px;
}
.header-right {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 16px;
  min-width: 0;
}
.header-search {
  display: flex;
  align-items: center;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-btn);
  overflow: hidden;
  background-color: var(--color-white);
  transition: var(--transition);
}
.header-search:focus-within {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(44, 95, 124, 0.12);
}
.header-search input {
  border: none;
  outline: none;
  padding: 8px 14px;
  width: 180px;
  font-size: 14px;
  color: var(--color-text);
}
.header-search button {
  border: none;
  background: transparent;
  padding: 8px 14px;
  color: var(--color-text-light);
  font-size: 14px;
  transition: var(--transition);
}
.header-search button:hover { color: var(--color-primary); }
.nav-toggle {
  display: none;
  background: none;
  border: none;
  width: 40px;
  height: 40px;
  border-radius: 8px;
  font-size: 22px;
  color: var(--color-text);
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}
.nav-toggle:hover { background-color: var(--color-sand); }
.mobile-nav {
  display: none;
  background-color: var(--color-white);
  border-bottom: 1px solid var(--color-border);
  padding: 12px 24px;
  flex-direction: column;
  gap: 12px;
}
.mobile-nav a {
  font-size: 15px;
  padding: 8px 0;
  color: var(--color-text);
  font-weight: 500;
  border-bottom: 1px solid var(--color-border);
}
.mobile-nav a:last-child { border-bottom: none; }
.mobile-nav a.active { color: var(--color-primary); font-weight: 600; }
.mobile-nav .mobile-search {
  display: flex;
  gap: 8px;
  margin-top: 4px;
}
.mobile-nav .mobile-search input {
  flex: 1;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-btn);
  padding: 10px 12px;
  font-size: 14px;
  outline: none;
}
.mobile-nav .mobile-search input:focus {
  border-color: var(--color-primary);
}

/* ===== Hero ===== */
.hero {
  padding: calc(var(--header-height) + 40px) 0 0;
  background-color: var(--color-bg);
  overflow: hidden;
}
.hero-grid {
  max-width: var(--container-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: stretch;
  padding: 0 24px;
  min-height: calc(100vh - var(--header-height) - 40px);
}
.hero-content {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 40px 0 80px;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background-color: var(--color-primary-light);
  color: var(--color-primary);
  font-size: var(--font-xs);
  font-weight: 600;
  padding: 6px 16px;
  border-radius: var(--radius-badge);
  margin-bottom: 24px;
  width: fit-content;
}
.hero-badge::before {
  content: "";
  width: 8px;
  height: 8px;
  background-color: var(--color-primary);
  border-radius: 50%;
  display: inline-block;
}
.hero-content h1 {
  font-size: var(--font-h1);
  font-weight: 700;
  line-height: 1.25;
  color: var(--color-text);
  margin-bottom: 20px;
  letter-spacing: -0.02em;
}
.hero-subtitle {
  font-size: 17px;
  line-height: 1.7;
  color: var(--color-text-light);
  max-width: 480px;
  margin-bottom: 32px;
}
.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 48px;
}
.hero-stats {
  display: flex;
  gap: 40px;
  border-top: 1px solid var(--color-border);
  padding-top: 28px;
}
.stat {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.stat strong {
  font-size: 20px;
  font-weight: 700;
  color: var(--color-text);
}
.stat span {
  font-size: var(--font-small);
  color: var(--color-text-light);
}
.hero-visual {
  position: relative;
  border-radius: var(--radius-card);
  overflow: hidden;
  min-height: 560px;
  display: flex;
  align-items: flex-end;
  justify-content: flex-end;
  padding: 32px;
}
.hero-visual-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  z-index: 0;
}
.hero-visual::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(255,255,255,0.85) 0%, rgba(255,255,255,0.2) 40%, rgba(0,0,0,0.15) 100%);
  z-index: 1;
}
.hero-card {
  position: relative;
  z-index: 2;
  background-color: rgba(255, 255, 255, 0.92);
  border-radius: var(--radius-card);
  padding: 24px;
  box-shadow: var(--shadow-hover);
  width: 100%;
  max-width: 360px;
  border: 1px solid var(--color-border);
}
.hero-card-header {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
  font-size: 15px;
  color: var(--color-text);
  border-bottom: 1px solid var(--color-border);
  padding-bottom: 16px;
  margin-bottom: 16px;
}
.hero-card-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background-color: var(--color-primary);
  display: inline-block;
}
.login-option {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 12px 14px;
  border-radius: var(--radius-btn);
  border: 1px solid var(--color-border);
  margin-bottom: 10px;
  font-size: 15px;
  font-weight: 500;
  color: var(--color-text);
  background-color: var(--color-white);
  transition: var(--transition);
}
.login-option:hover {
  border-color: var(--color-primary);
  background-color: var(--color-primary-light);
  color: var(--color-primary);
  transform: translateX(4px);
}
.login-option-icon {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  background-color: var(--color-sand);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  color: var(--color-primary);
  flex-shrink: 0;
}
.hero-card-footer {
  display: flex;
  justify-content: space-between;
  margin-top: 16px;
  padding-top: 12px;
  border-top: 1px solid var(--color-border);
  font-size: var(--font-small);
}
.hero-card-footer a { color: var(--color-text-light); }
.hero-card-footer a:hover { color: var(--color-primary); }

/* ===== 板块通用 ===== */
.section {
  padding: var(--section-gap) 0;
}
.section-header {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 56px;
}
.section-header h2 {
  font-size: var(--font-h2);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 12px;
  letter-spacing: -0.01em;
}
.section-header p {
  font-size: var(--font-body);
  color: var(--color-text-light);
  line-height: 1.7;
}

/* ===== 优惠阶梯 ===== */
.benefits {
  background-color: var(--color-bg);
}
.benefits-grid {
  display: grid;
  grid-template-columns: 2fr 2.3fr 2.6fr;
  gap: 24px;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
  align-items: stretch;
}
.benefit-card {
  background-color: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  padding: 40px 32px;
  display: flex;
  flex-direction: column;
  position: relative;
  transition: var(--transition);
  box-shadow: var(--shadow-card);
}
.benefit-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-4px);
}
.benefit-card-featured {
  background-color: var(--color-primary-light);
  border-color: var(--color-primary);
  box-shadow: 0 4px 20px rgba(44, 95, 124, 0.12);
  padding-top: 48px;
  padding-bottom: 48px;
  margin-top: -8px;
}
.benefit-badge {
  position: absolute;
  top: -12px;
  right: 20px;
  background-color: var(--color-accent);
  color: var(--color-white);
  font-size: var(--font-xs);
  font-weight: 600;
  padding: 4px 16px;
  border-radius: var(--radius-badge);
}
.benefit-number {
  font-size: var(--font-small);
  font-weight: 700;
  color: var(--color-text-light);
  letter-spacing: 0.08em;
  margin-bottom: 12px;
}
.benefit-card-featured .benefit-number { color: var(--color-primary); }
.benefit-name {
  font-size: var(--font-h3);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 20px;
}
.benefit-points {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 28px;
  flex: 1;
}
.benefit-points li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 15px;
  color: var(--color-text);
  line-height: 1.5;
}
.benefit-points li::before {
  content: "✓";
  color: var(--color-primary);
  font-weight: 700;
  flex-shrink: 0;
}
.benefit-stat {
  margin-bottom: 20px;
  padding-top: 20px;
  border-top: 1px solid var(--color-border);
  display: flex;
  align-items: baseline;
  gap: 8px;
}
.benefit-stat strong {
  font-size: 36px;
  font-weight: 700;
  color: var(--color-primary);
}
.benefit-stat span {
  font-size: var(--font-small);
  color: var(--color-text-light);
}

/* ===== 套餐对比 ===== */
.compare {
  background-color: var(--color-card);
  padding: var(--section-gap) 0;
}
.compare-table-wrap {
  max-width: 900px;
  margin: 0 auto;
  padding: 0 24px;
  overflow-x: auto;
}
.compare-table {
  width: 100%;
  border-collapse: collapse;
  border-radius: var(--radius-card);
  overflow: hidden;
  background-color: var(--color-card);
}
.compare-table th {
  background-color: var(--color-sand);
  font-size: 15px;
  font-weight: 600;
  color: var(--color-text);
  padding: 16px 20px;
  text-align: center;
  border-bottom: 1px solid var(--color-border);
}
.compare-table th:first-child {
  text-align: left;
}
.compare-table .table-featured {
  background-color: var(--color-primary-light);
  position: relative;
}
.compare-table .table-featured .recommend-badge {
  display: inline-block;
  background-color: var(--color-accent);
  color: var(--color-white);
  font-size: 11px;
  font-weight: 600;
  padding: 2px 10px;
  border-radius: var(--radius-badge);
  margin-left: 6px;
  vertical-align: middle;
}
.compare-table td {
  padding: 14px 20px;
  text-align: center;
  font-size: 15px;
  color: var(--color-text);
  border-bottom: 1px solid var(--color-border);
  min-height: 48px;
  line-height: 1.4;
}
.compare-table td:first-child {
  text-align: left;
  font-weight: 500;
}
.compare-table tr:nth-child(even) td {
  background-color: #FBFBF9;
}
.compare-table tr:last-child td {
  border-bottom: none;
}
.compare-table .td-featured {
  background-color: rgba(232, 240, 244, 0.4);
}
.compare-icon-yes {
  color: var(--color-primary);
  font-weight: 700;
  font-size: 16px;
}
.compare-icon-no {
  color: #C0BDB6;
  font-size: 16px;
}
.compare-cta {
  text-align: center;
  margin-top: 32px;
}
.compare-cta a {
  font-size: 15px;
  font-weight: 500;
  color: var(--color-primary);
  border-bottom: 1px dashed var(--color-primary);
  padding-bottom: 2px;
}
.compare-cta a:hover {
  color: var(--color-accent);
  border-color: var(--color-accent);
}

/* ===== 限时入口 ===== */
.limit-entry {
  background-color: var(--color-sand);
  border-top: 2px solid var(--color-accent);
  border-bottom: 2px solid var(--color-accent);
  padding: 40px 0;
}
.limit-content {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  flex-wrap: wrap;
}
.limit-info {
  display: flex;
  align-items: center;
  gap: 32px;
  flex-wrap: wrap;
}
.limit-label {
  font-size: var(--font-small);
  font-weight: 600;
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  line-height: 1.4;
}
.limit-countdown {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: "SF Mono", "Menlo", "Consolas", monospace;
}
.countdown-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  background-color: var(--color-white);
  border-radius: 10px;
  padding: 10px 14px;
  min-width: 62px;
  border: 1px solid var(--color-border);
}
.countdown-item strong {
  font-size: 28px;
  font-weight: 700;
  color: var(--color-text);
  line-height: 1.2;
  font-variant-numeric: tabular-nums;
}
.countdown-item small {
  font-size: var(--font-xs);
  color: var(--color-text-light);
  margin-top: 2px;
}
.countdown-sep {
  font-size: 24px;
  font-weight: 700;
  color: var(--color-text-light);
}

/* ===== 资讯区 ===== */
.news-section {
  background-color: var(--color-bg);
  padding: var(--section-gap) 0;
}
.news-grid {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}
.news-card {
  background-color: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: var(--transition);
  box-shadow: var(--shadow-card);
}
.news-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-4px);
}
.news-card-cover {
  height: 200px;
  overflow: hidden;
  position: relative;
  background-color: var(--color-sand);
}
.news-card-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.news-card:hover .news-card-cover img {
  transform: scale(1.05);
}
.news-card-body {
  padding: 24px;
  display: flex;
  flex-direction: column;
  flex: 1;
}
.news-card-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
  flex-wrap: wrap;
}
.news-tag {
  background-color: var(--color-primary-light);
  color: var(--color-primary);
  font-size: var(--font-xs);
  font-weight: 600;
  padding: 3px 12px;
  border-radius: var(--radius-badge);
}
.news-card-meta time {
  font-size: var(--font-xs);
  color: var(--color-text-light);
}
.news-card-body h3 {
  font-size: var(--font-h3);
  font-weight: 600;
  line-height: 1.5;
  margin-bottom: 10px;
}
.news-card-body h3 a {
  color: var(--color-text);
}
.news-card-body h3 a:hover { color: var(--color-primary); }
.news-card-body p {
  font-size: 15px;
  color: var(--color-text-light);
  line-height: 1.6;
  margin-bottom: 16px;
  flex: 1;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.news-more {
  font-size: var(--font-small);
  font-weight: 600;
  color: var(--color-primary);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.news-more:hover { color: var(--color-accent); gap: 10px; }
.news-more::after {
  content: "→";
  transition: transform 0.3s ease;
}
.news-empty {
  grid-column: 1 / -1;
  text-align: center;
  padding: 80px 24px;
  background-color: var(--color-card);
  border: 1px dashed var(--color-border);
  border-radius: var(--radius-card);
  color: var(--color-text-light);
}
.news-empty-icon {
  display: block;
  font-size: 48px;
  margin-bottom: 16px;
  opacity: 0.5;
}
.news-empty p {
  font-size: 16px;
}

/* ===== 咨询表单 ===== */
.form-section {
  background-color: var(--color-card);
  padding: var(--section-gap) 0;
}
.form-card {
  max-width: 700px;
  margin: 0 auto;
  padding: 0 24px;
  background-color: var(--color-bg);
  border-radius: var(--radius-card);
  position: relative;
}
.form-card-inner {
  padding: 56px;
}
.form-card h2 {
  font-size: var(--font-h2);
  font-weight: 700;
  text-align: center;
  margin-bottom: 12px;
  color: var(--color-text);
}
.form-card > .form-card-inner > p {
  text-align: center;
  color: var(--color-text-light);
  margin-bottom: 40px;
  font-size: 15px;
}
.consult-form {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}
.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.form-group-full {
  grid-column: 1 / -1;
}
.form-group label {
  font-size: 14px;
  font-weight: 500;
  color: var(--color-text);
}
.form-group input,
.form-group select,
.form-group textarea {
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: 11px 14px;
  font-size: 14px;
  background-color: var(--color-white);
  color: var(--color-text);
  outline: none;
  transition: var(--transition);
  width: 100%;
  height: 44px;
}
.form-group textarea {
  height: 120px;
  resize: vertical;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(44, 95, 124, 0.12);
}
.form-group input::placeholder,
.form-group textarea::placeholder {
  color: #B0ADA6;
}
.form-submit {
  grid-column: 1 / -1;
  text-align: center;
  margin-top: 8px;
}
.form-submit .btn {
  min-width: 200px;
}

/* ===== FAQ ===== */
.faq-section {
  background-color: var(--color-bg);
  padding: var(--section-gap) 0;
}
.faq-list {
  max-width: 800px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.faq-item {
  background-color: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  transition: var(--transition);
}
.faq-item:hover {
  border-color: var(--color-primary);
}
.faq-item.active {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-hover);
}
.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 24px;
  cursor: pointer;
  font-size: 16px;
  font-weight: 600;
  color: var(--color-text);
  transition: var(--transition);
  user-select: none;
}
.faq-question:hover { color: var(--color-primary); }
.faq-icon {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background-color: var(--color-sand);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  font-weight: 400;
  color: var(--color-primary);
  flex-shrink: 0;
  transition: transform 0.3s ease;
  line-height: 1;
}
.faq-item.active .faq-icon {
  transform: rotate(45deg);
  background-color: var(--color-primary);
  color: var(--color-white);
}
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease;
}
.faq-answer-inner {
  padding: 0 24px 20px;
  font-size: 15px;
  color: var(--color-text-light);
  line-height: 1.7;
}

/* ===== 底部CTA ===== */
.cta-section {
  background-color: var(--color-primary-dark);
  padding: 80px 0;
  position: relative;
  overflow: hidden;
}
.cta-section::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: url('/assets/images/backpic/back-3.webp');
  background-size: cover;
  background-position: center;
  opacity: 0.2;
}
.cta-inner {
  position: relative;
  z-index: 1;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
  text-align: center;
}
.cta-inner h2 {
  font-size: var(--font-h2);
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: 12px;
}
.cta-inner p {
  color: rgba(255, 255, 255, 0.8);
  font-size: 16px;
  margin-bottom: 32px;
}
.cta-inner .btn-primary {
  background-color: var(--color-white);
  color: var(--color-primary-dark);
  border-color: transparent;
}
.cta-inner .btn-primary:hover {
  background-color: var(--color-accent);
  color: var(--color-white);
}

/* ===== 页脚 ===== */
.site-footer {
  background-color: #1E1E1E;
  color: rgba(255, 255, 255, 0.7);
  padding-top: 72px;
}
.footer-inner {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 56px;
}
.footer-brand .brand {
  color: var(--color-white);
  margin-bottom: 16px;
}
.footer-brand .brand-icon {
  color: var(--color-primary-light);
}
.footer-brand .footer-desc {
  font-size: 14px;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.6);
  max-width: 320px;
}
.footer-col-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-white);
  margin-bottom: 20px;
}
.footer-col ul {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.footer-col ul a {
  color: rgba(255, 255, 255, 0.6);
  font-size: 14px;
  transition: var(--transition);
}
.footer-col ul a:hover {
  color: var(--color-white);
}
.footer-contact-list {
  font-size: 14px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  color: rgba(255, 255, 255, 0.6);
}
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding: 20px 0;
  text-align: center;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.4);
}
.footer-bottom .container {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

/* ===== 响应式断点 ===== */
@media (max-width: 1200px) {
  .benefits-grid {
    grid-template-columns: 1fr 1fr;
  }
  .benefit-card-featured {
    margin-top: 0;
    grid-column: 1 / -1;
  }
  .benefit-card-featured .benefit-points {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
  }
}

@media (max-width: 1024px) {
  :root {
    --section-gap: 72px;
  }
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 0;
  }
  .hero-content {
    padding: 32px 0 32px;
  }
  .hero-visual {
    min-height: 400px;
    margin-bottom: 48px;
  }
  .header-search input {
    width: 140px;
  }
  .main-nav {
    gap: 16px;
  }
  .compare-table-wrap {
    overflow-x: auto;
  }
  .compare-table {
    min-width: 700px;
  }
}

@media (max-width: 768px) {
  :root {
    --section-gap: 64px;
    --header-height: 56px;
  }
  .header-inner {
    grid-template-columns: 1fr auto;
    gap: 8px;
  }
  .header-left {
    gap: 16px;
  }
  .main-nav {
    display: none;
  }
  .header-search {
    display: none;
  }
  .header-cta {
    display: none;
  }
  .nav-toggle {
    display: flex;
  }
  .mobile-nav.open {
    display: flex;
  }
  .benefits-grid {
    grid-template-columns: 1fr;
    padding: 0 16px;
  }
  .benefit-card-featured {
    grid-column: auto;
    padding-top: 40px;
    padding-bottom: 40px;
    margin-top: 0;
  }
  .benefit-card-featured .benefit-points {
    display: flex;
  }
  .limit-content {
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
  }
  .limit-info {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
    width: 100%;
  }
  .limit-action {
    width: 100%;
  }
  .limit-action .btn {
    width: 100%;
  }
  .news-grid {
    grid-template-columns: 1fr;
    padding: 0 16px;
  }
  .form-card-inner {
    padding: 32px 24px;
  }
  .consult-form {
    grid-template-columns: 1fr;
  }
  .form-group-full {
    grid-column: 1;
  }
  .footer-inner {
    grid-template-columns: 1fr;
    gap: 32px;
    padding-bottom: 32px;
  }
  .hero-grid {
    padding: 0 16px;
  }
  .hero-visual {
    min-height: 320px;
    padding: 16px;
  }
  .hero-stats {
    gap: 24px;
    flex-wrap: wrap;
  }
  .hero-actions {
    margin-bottom: 32px;
  }
  .section-header {
    padding: 0 16px;
  }
}

@media (max-width: 520px) {
  .hero-content h1 {
    font-size: 32px;
  }
  .hero-subtitle {
    font-size: 15px;
  }
  .hero-actions .btn {
    width: 100%;
  }
  .countdown-item {
    min-width: 54px;
    padding: 8px 10px;
  }
  .countdown-item strong {
    font-size: 22px;
  }
  .footer-bottom .container {
    flex-direction: column;
    gap: 4px;
  }
  .form-card {
    margin: 0 16px;
  }
  .compare-table-wrap {
    padding: 0 16px;
  }
  .news-card-cover {
    height: 160px;
  }
}

/* roulang page: article */
/* ===== 设计变量 ===== */
:root {
  --color-primary: #2C5F7C;
  --color-primary-dark: #244A63;
  --color-primary-light: #3A7394;
  --color-accent: #B26A4B;
  --color-sand: #F4EFE6;
  --color-bg: #F7F6F3;
  --color-card: #FFFFFF;
  --color-border: #EAE6DE;
  --color-text: #2B2F36;
  --color-text-weak: #6E747C;
  --color-text-faint: #9EA3AA;
  --font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
  --font-mono: "SF Mono", "Cascadia Code", "Roboto Mono", Consolas, monospace;
  --radius-card: 12px;
  --radius-btn: 8px;
  --radius-badge: 99px;
  --shadow-card: 0 2px 8px rgba(0,0,0,0.04);
  --shadow-hover: 0 8px 24px rgba(0,0,0,0.08);
  --container-w: 1200px;
  --header-h: 54px;
  --gap-section: 96px;
  --gap-section-mobile: 64px;
  --transition: 0.2s ease;
}

/* ===== Reset / Base ===== */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-family);
  font-size: 16px;
  line-height: 1.8;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img { max-width: 100%; display: block; }
a { color: var(--color-primary); text-decoration: none; transition: color var(--transition), opacity var(--transition); }
a:hover { color: var(--color-primary-dark); }
button, input, textarea, select { font: inherit; color: inherit; }
h1, h2, h3, h4, h5, h6, p, figure, dl, dd { margin: 0; }
ul, ol { margin: 0; padding: 0; list-style: none; }
:focus-visible { outline: 3px solid rgba(44, 95, 124, 0.35); outline-offset: 2px; border-radius: 4px; }

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

/* ===== 按钮 ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 22px;
  border-radius: var(--radius-btn);
  border: 1px solid transparent;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.2;
  cursor: pointer;
  white-space: nowrap;
  transition: background var(--transition), color var(--transition), border-color var(--transition), transform var(--transition), box-shadow var(--transition);
}
.btn-primary { background: var(--color-primary); color: #fff; }
.btn-primary:hover { background: var(--color-primary-dark); color: #fff; transform: translateY(-2px); box-shadow: 0 6px 20px rgba(44, 95, 124, 0.2); }
.btn-outline { background: transparent; color: var(--color-primary); border-color: var(--color-primary); }
.btn-outline:hover { background: var(--color-primary); color: #fff; transform: translateY(-2px); }
.btn-soft { background: var(--color-sand); color: var(--color-primary-dark); border-color: var(--color-border); }
.btn-soft:hover { background: #EAE2D3; color: var(--color-primary-dark); transform: translateY(-2px); }
.btn-sm { padding: 8px 16px; font-size: 14px; }
.btn-lg { padding: 14px 32px; font-size: 16px; }
.btn-block { display: flex; width: 100%; }

/* ===== Header / Nav ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-h);
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
}
.header-inner {
  height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.header-left { display: flex; align-items: center; gap: 28px; min-width: 0; }
.header-right { display: flex; align-items: center; gap: 16px; flex-shrink: 0; }
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--color-text);
  font-weight: 700;
  font-size: 21px;
  letter-spacing: -0.2px;
  white-space: nowrap;
}
.brand:hover { color: var(--color-text); }
.brand-icon { width: 26px; height: 26px; color: var(--color-accent); flex-shrink: 0; }
.brand-text { display: inline-flex; align-items: baseline; gap: 2px; }
.brand-text small { font-size: 13px; font-weight: 500; color: var(--color-text-weak); letter-spacing: 0.2px; }

.main-nav { display: flex; align-items: center; gap: 4px; }
.main-nav a {
  display: inline-block;
  padding: 8px 16px;
  border-radius: var(--radius-btn);
  font-size: 15px;
  font-weight: 500;
  color: var(--color-text-weak);
  border: 1px solid transparent;
  transition: background var(--transition), color var(--transition), border-color var(--transition);
}
.main-nav a:hover { color: var(--color-primary); background: rgba(44, 95, 124, 0.06); }
.main-nav a.active { color: var(--color-primary); background: rgba(44, 95, 124, 0.1); font-weight: 600; }

.header-search { display: flex; align-items: center; gap: 0; border: 1px solid var(--color-border); border-radius: var(--radius-btn); background: #fff; overflow: hidden; transition: border-color var(--transition), box-shadow var(--transition); }
.header-search:focus-within { border-color: var(--color-primary); box-shadow: 0 0 0 2px rgba(44, 95, 124, 0.12); }
.header-search input { border: none; outline: none; padding: 7px 10px 7px 14px; width: 150px; font-size: 14px; background: transparent; }
.header-search input::placeholder { color: var(--color-text-faint); }
.header-search button { border: none; background: transparent; padding: 6px 12px; cursor: pointer; color: var(--color-text-weak); display: flex; align-items: center; transition: color var(--transition); }
.header-search button:hover { color: var(--color-primary); }

.menu-toggle { display: none; border: 1px solid var(--color-border); background: #fff; width: 40px; height: 40px; border-radius: 8px; cursor: pointer; align-items: center; justify-content: center; color: var(--color-text); }

/* ===== 面包屑 ===== */
.breadcrumb { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; padding: 18px 0 4px; font-size: 14px; color: var(--color-text-weak); }
.breadcrumb a { color: var(--color-text-weak); }
.breadcrumb a:hover { color: var(--color-primary); }
.breadcrumb .sep { color: var(--color-text-faint); }
.breadcrumb .current { color: var(--color-text); font-weight: 500; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; max-width: 320px; }

/* ===== 文章页 ===== */
.article-page { padding: 0 0 72px; }
.article-banner {
  background: linear-gradient(135deg, var(--color-sand) 0%, #FDFCFA 100%);
  border-bottom: 1px solid var(--color-border);
  padding-bottom: 8px;
}

.article-card {
  background: var(--color-card);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
  border: 1px solid rgba(234, 230, 222, 0.7);
  margin: 40px auto 0;
  max-width: 980px;
  padding: 56px 64px 64px;
  position: relative;
}
.article-card::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 48px;
  right: 48px;
  height: 3px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  border-radius: 0 0 3px 3px;
}
.article-head { margin-bottom: 32px; }
.article-head .head-tag {
  display: inline-block;
  background: rgba(44, 95, 124, 0.1);
  color: var(--color-primary);
  font-size: 13px;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: var(--radius-badge);
  margin-bottom: 18px;
}
.article-title {
  font-size: 40px;
  line-height: 1.25;
  font-weight: 700;
  letter-spacing: -0.4px;
  margin: 0 0 20px;
  color: var(--color-text);
}
.article-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 24px;
  padding: 14px 0;
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  font-size: 14px;
  color: var(--color-text-weak);
}
.meta-item { display: inline-flex; align-items: center; gap: 6px; }
.meta-item svg { width: 15px; height: 15px; color: var(--color-text-faint); }
.meta-item .dot { width: 4px; height: 4px; border-radius: 50%; background: var(--color-text-faint); display: inline-block; margin-right: 10px; }

/* ===== 正文阅读区 ===== */
.article-content { max-width: 760px; margin: 32px auto 0; }
.article-content p { font-size: 16px; line-height: 1.8; margin: 0 0 18px; color: #3A3F46; }
.article-content h2 { font-size: 28px; line-height: 1.4; font-weight: 700; color: var(--color-text); margin: 44px 0 16px; padding-bottom: 8px; border-bottom: 1px solid var(--color-border); }
.article-content h3 { font-size: 22px; line-height: 1.4; font-weight: 600; color: var(--color-text); margin: 34px 0 12px; }
.article-content ul, .article-content ol { margin: 0 0 20px; padding-left: 28px; }
.article-content li { font-size: 16px; line-height: 1.8; margin-bottom: 7px; color: #3A3F46; }
.article-content ul li { list-style: disc; }
.article-content ol li { list-style: decimal; }
.article-content blockquote { border-left: 4px solid var(--color-accent); background: var(--color-sand); padding: 18px 24px; border-radius: 0 12px 12px 0; margin: 26px 0; font-style: normal; color: #4A4F56; }
.article-content blockquote p { margin: 0; }
.article-content a { color: var(--color-primary); text-decoration: underline; text-underline-offset: 3px; }
.article-content a:hover { color: var(--color-accent); }
.article-content img { border-radius: 12px; margin: 28px 0; box-shadow: var(--shadow-card); }
.article-content hr { border: none; border-top: 1px solid var(--color-border); margin: 36px 0; }

/* 内容未找到 */
.not-found {
  max-width: 560px;
  margin: 48px auto;
  padding: 56px 40px;
  text-align: center;
  background: var(--color-card);
  border: 1px dashed var(--color-border);
  border-radius: var(--radius-card);
}
.not-found .nf-icon { font-size: 48px; margin-bottom: 12px; display: block; color: var(--color-text-faint); }
.not-found p { font-size: 18px; font-weight: 600; color: var(--color-text); margin-bottom: 8px; }
.not-found span { font-size: 14px; color: var(--color-text-weak); }
.not-found .btn { margin-top: 24px; }

/* ===== 相关推荐 ===== */
.related { max-width: 980px; margin: 56px auto 0; }
.related-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 24px; }
.related-head h2 { font-size: 28px; font-weight: 700; color: var(--color-text); position: relative; }
.related-head h2::after { content: ""; display: block; width: 40px; height: 3px; background: var(--color-accent); border-radius: 3px; margin-top: 8px; }
.related-link { font-size: 14px; font-weight: 500; color: var(--color-text-weak); display: inline-flex; align-items: center; gap: 6px; }
.related-link:hover { color: var(--color-primary); }
.related-link svg { width: 14px; height: 14px; transition: transform var(--transition); }
.related-link:hover svg { transform: translateX(3px); }

.related-grid { display: grid; grid-template-columns: 1.15fr 0.925fr 0.925fr; gap: 24px; }
.related-card {
  background: var(--color-card);
  border-radius: var(--radius-card);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  border: 1px solid rgba(234, 230, 222, 0.6);
  transition: box-shadow var(--transition), transform var(--transition);
  display: block;
  color: var(--color-text);
}
.related-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-3px); color: var(--color-text); }
.related-card .thumb { position: relative; aspect-ratio: 16 / 9; overflow: hidden; }
.related-card .thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.4s ease; }
.related-card:hover .thumb img { transform: scale(1.03); }
.related-card .thumb .tag { position: absolute; top: 12px; left: 12px; background: rgba(255, 255, 255, 0.92); color: var(--color-primary); font-size: 12px; font-weight: 600; padding: 3px 10px; border-radius: var(--radius-badge); }
.related-card .rc-body { padding: 18px 20px 20px; }
.related-card h3 { font-size: 16px; line-height: 1.5; font-weight: 600; margin: 0 0 8px; color: var(--color-text); }
.related-card:hover h3 { color: var(--color-primary); }
.related-card time { font-size: 12px; color: var(--color-text-faint); display: flex; align-items: center; gap: 6px; }

/* ===== CTA ===== */
.cta-panel {
  margin-top: var(--gap-section);
  background: var(--color-primary);
  border-radius: var(--radius-card);
  position: relative;
  overflow: hidden;
}
.cta-panel::before {
  content: "";
  position: absolute;
  inset: 0;
  background: url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  opacity: 0.12;
}
.cta-inner {
  position: relative;
  z-index: 2;
  padding: 56px 48px;
  text-align: center;
  color: #fff;
}
.cta-inner h2 { font-size: 32px; font-weight: 700; margin-bottom: 12px; color: #fff; }
.cta-inner p { font-size: 16px; opacity: 0.85; margin-bottom: 28px; max-width: 520px; margin-left: auto; margin-right: auto; }
.cta-inner .btn-primary { background: #fff; color: var(--color-primary); }
.cta-inner .btn-primary:hover { background: var(--color-sand); color: var(--color-primary-dark); }
.cta-inner .btn-outline { border-color: rgba(255, 255, 255, 0.6); color: #fff; margin-left: 12px; }
.cta-inner .btn-outline:hover { background: rgba(255, 255, 255, 0.1); color: #fff; }

/* ===== Footer ===== */
.site-footer { background: #2A2E35; color: #B8BEC6; margin-top: 96px; }
.footer-inner { max-width: var(--container-w); margin: 0 auto; padding: 56px 24px 32px; display: grid; grid-template-columns: 2fr 1fr 1.2fr; gap: 40px; }
.footer-brand a { font-size: 22px; font-weight: 700; color: #fff; display: inline-flex; align-items: center; gap: 10px; }
.footer-brand a:hover { color: #fff; }
.footer-brand .brand-icon { color: var(--color-accent); }
.footer-desc { margin-top: 14px; font-size: 14px; line-height: 1.7; opacity: 0.75; max-width: 320px; }
.footer-col-title { font-size: 15px; font-weight: 600; color: #fff; margin-bottom: 16px; }
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul li a { color: #B8BEC6; font-size: 14px; }
.footer-col ul li a:hover { color: #fff; }
.footer-contact-list li { font-size: 14px; margin-bottom: 10px; color: #AEB4BC; }
.footer-bottom { border-top: 1px solid rgba(255, 255, 255, 0.08); }
.footer-bottom .container { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 8px; padding-top: 18px; padding-bottom: 18px; font-size: 13px; color: #8A909A; }
.footer-bottom a { color: #8A909A; }
.footer-bottom a:hover { color: #fff; }

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
  .header-left { gap: 16px; }
  .header-search input { width: 110px; }
  .header-right { gap: 10px; }
  .related-grid { grid-template-columns: 1fr 1fr; }
  .related-card:first-child { grid-column: 1 / -1; }
  .article-card { padding: 40px 36px 48px; }
  .footer-inner { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  .site-header { height: auto; }
  .header-inner { height: 56px; flex-wrap: wrap; }
  .menu-toggle { display: inline-flex; }
  .main-nav { display: none; position: fixed; top: 56px; left: 0; right: 0; background: #fff; border-bottom: 1px solid var(--color-border); flex-direction: column; align-items: stretch; gap: 0; padding: 12px 24px 16px; box-shadow: 0 12px 24px rgba(0,0,0,0.08); }
  .main-nav.open { display: flex; }
  .main-nav a { padding: 12px 10px; border-bottom: 1px solid var(--color-border); border-radius: 0; }
  .main-nav a:last-child { border-bottom: none; }
  .header-right { gap: 10px; }
  .header-search { display: none; }
  .article-page { padding-bottom: 48px; }
  .article-card { margin-top: 24px; padding: 32px 20px 40px; border-radius: 0; box-shadow: none; border-left: none; border-right: none; }
  .article-card::before { left: 20px; right: 20px; }
  .article-title { font-size: 30px; }
  .article-head { margin-bottom: 24px; }
  .article-content { margin-top: 24px; }
  .article-content h2 { font-size: 24px; }
  .related { margin-top: 32px; }
  .related-head h2 { font-size: 24px; }
  .related-grid { grid-template-columns: 1fr; }
  .related-card:first-child { grid-column: auto; }
  .cta-panel { margin-top: 56px; }
  .cta-inner { padding: 40px 24px; }
  .cta-inner h2 { font-size: 26px; }
  .footer-inner { grid-template-columns: 1fr; padding-top: 40px; gap: 32px; }
  .breadcrumb { font-size: 13px; }
}
@media (max-width: 520px) {
  .container { padding: 0 16px; }
  .header-search { display: none; }
  .brand { font-size: 18px; }
  .brand-icon { width: 22px; height: 22px; }
  .btn-lg { padding: 12px 20px; font-size: 15px; }
  .article-title { font-size: 26px; }
  .related-head { flex-direction: column; align-items: flex-start; gap: 8px; }
  .breadcrumb .current { max-width: 200px; }
  .cta-inner { padding: 32px 20px; }
  .cta-inner .btn { display: block; width: 100%; margin-bottom: 8px; }
  .cta-inner .btn-outline { margin-left: 0; }
  .footer-bottom .container { flex-direction: column; text-align: center; }
}

/* roulang page: category1 */
:root {
  --primary: #2C5F7C;
  --primary-dark: #244A63;
  --primary-light: #E8EEF2;
  --accent: #B26A4B;
  --accent-hover: #9D583C;
  --accent-light: #F5E8E1;
  --sand: #F4EFE6;
  --bg: #F7F6F3;
  --card: #FFFFFF;
  --border: #EAE6DE;
  --text: #24313B;
  --text-weak: #6B7A84;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-full: 99px;
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.04);
  --shadow-md: 0 8px 24px rgba(0,0,0,0.08);
  --transition: 0.2s ease;
  --font: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.8;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
button, input, select, textarea { font: inherit; }
ul, ol { list-style: none; }

a:focus-visible, button:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
  border-radius: 4px;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 96px 0;
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 15px;
  line-height: 1;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
}

.btn-sm { padding: 8px 18px; font-size: 14px; }
.btn-lg { padding: 15px 36px; font-size: 16px; }

.btn-primary {
  background: var(--primary);
  color: #fff;
}
.btn-primary:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}
.btn-primary:active {
  transform: translateY(0);
  box-shadow: var(--shadow-sm);
}

.btn-accent {
  background: var(--accent);
  color: #fff;
}
.btn-accent:hover {
  background: var(--accent-hover);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}
.btn-accent:active {
  transform: translateY(0);
}

.btn-outline {
  background: transparent;
  border-color: var(--primary);
  color: var(--primary);
}
.btn-outline:hover {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}

/* ===== Header ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,0.92);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  height: 56px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 18px;
  color: var(--text);
  text-decoration: none;
  white-space: nowrap;
  transition: color var(--transition);
}
.brand:hover { color: var(--primary); }

.brand-icon {
  width: 28px;
  height: 28px;
  color: var(--primary);
  flex-shrink: 0;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 4px;
}

.main-nav a {
  display: inline-block;
  padding: 8px 16px;
  border-radius: var(--radius-full);
  color: var(--text-weak);
  font-weight: 500;
  font-size: 15px;
  line-height: 1.4;
  transition: all var(--transition);
}

.main-nav a:hover {
  color: var(--primary);
  background: var(--primary-light);
}

.main-nav a.active {
  color: var(--primary-dark);
  background: var(--primary-light);
  font-weight: 600;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  padding: 8px;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition);
}
.nav-toggle:hover { background: var(--primary-light); }
.nav-toggle span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: transform var(--transition);
}

/* ===== Category Hero ===== */
.category-hero {
  position: relative;
  background-image: url('/assets/images/backpic/back-1.webp');
  background-size: cover;
  background-position: center;
  padding: 96px 0 88px;
}

.category-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(255,255,255,0.82);
}

.category-hero .container {
  position: relative;
  z-index: 1;
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--text-weak);
  margin-bottom: 28px;
}
.breadcrumb a { color: var(--primary); transition: color var(--transition); }
.breadcrumb a:hover { color: var(--primary-dark); }
.breadcrumb-sep { color: var(--border); }

.category-hero h1 {
  font-size: 42px;
  font-weight: 700;
  line-height: 1.3;
  color: var(--text);
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}

.hero-subtitle {
  font-size: 18px;
  color: var(--text-weak);
  max-width: 640px;
  margin-bottom: 32px;
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

/* ===== Intro Section ===== */
.intro-section {
  background: var(--card);
  border-bottom: 1px solid var(--border);
}

.intro-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
}

.intro-image img {
  width: 100%;
  height: 420px;
  object-fit: cover;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
}

.section-tag {
  display: inline-block;
  padding: 4px 14px;
  background: var(--accent-light);
  color: var(--accent-hover);
  font-size: 12px;
  font-weight: 600;
  border-radius: var(--radius-full);
  margin-bottom: 14px;
}

.intro-content h2 {
  font-size: 30px;
  font-weight: 700;
  line-height: 1.35;
  margin-bottom: 18px;
  color: var(--text);
}

.intro-content p {
  margin-bottom: 16px;
  color: #46545E;
}

.check-card {
  margin-top: 24px;
  padding: 22px 26px;
  background: var(--primary-light);
  border: 1px solid #D6E1E8;
  border-radius: var(--radius-md);
}

.check-card h3 {
  font-size: 16px;
  font-weight: 600;
  color: var(--primary-dark);
  margin-bottom: 12px;
}

.check-card ul li {
  position: relative;
  padding-left: 26px;
  font-size: 14px;
  color: var(--text);
  line-height: 1.7;
  margin-bottom: 6px;
}
.check-card ul li:last-child { margin-bottom: 0; }
.check-card ul li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 10px;
  width: 12px;
  height: 6px;
  border-left: 2px solid var(--primary);
  border-bottom: 2px solid var(--primary);
  transform: rotate(-45deg);
  border-radius: 1px;
}

/* ===== Points Section ===== */
.points-section {
  background: var(--bg);
}

.section-head {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 52px;
}

.section-head h2 {
  font-size: 30px;
  font-weight: 700;
  color: var(--text);
  line-height: 1.35;
  margin-bottom: 12px;
}

.section-head p {
  color: var(--text-weak);
  font-size: 16px;
}

.points-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.point-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-left: 4px solid var(--primary);
  border-radius: var(--radius-md);
  padding: 30px 28px;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
}

.point-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
  border-left-color: var(--accent);
}

.point-card.wide {
  grid-column: 1 / -1;
  background: linear-gradient(135deg, var(--primary-light) 0%, var(--card) 45%);
  border-left-color: var(--accent);
}

.point-num {
  display: block;
  font-size: 34px;
  font-weight: 700;
  line-height: 1;
  color: var(--accent);
  font-variant-numeric: tabular-nums;
  margin-bottom: 14px;
}

.point-card h3 {
  font-size: 20px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 10px;
}

.point-card p {
  color: #53616B;
  font-size: 15px;
  line-height: 1.75;
}

/* ===== Links Section ===== */
.links-section {
  background: var(--card);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.link-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
  max-width: 1000px;
  margin: 0 auto;
}

.link-card {
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 24px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
}

.link-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
  border-color: var(--primary);
}

.link-card img {
  width: 140px;
  height: 100px;
  object-fit: cover;
  border-radius: var(--radius-sm);
  flex-shrink: 0;
}

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

.link-card-tag {
  display: inline-block;
  padding: 2px 10px;
  background: var(--accent-light);
  color: var(--accent-hover);
  font-size: 12px;
  font-weight: 600;
  border-radius: var(--radius-full);
  margin-bottom: 8px;
}

.link-card h3 {
  font-size: 20px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 6px;
}

.link-card p {
  font-size: 14px;
  color: var(--text-weak);
  line-height: 1.6;
  margin-bottom: 10px;
}

.link-arrow {
  display: inline-block;
  font-size: 14px;
  font-weight: 600;
  color: var(--primary);
  transition: transform var(--transition);
}

.link-card:hover .link-arrow {
  transform: translateX(4px);
  color: var(--accent);
}

/* ===== CTA Section ===== */
.cta-section {
  background: var(--sand);
}

.cta-inner {
  text-align: center;
  max-width: 640px;
}

.cta-inner h2 {
  font-size: 32px;
  font-weight: 700;
  color: var(--text);
  line-height: 1.3;
  margin-bottom: 14px;
}

.cta-inner p {
  font-size: 17px;
  color: var(--text-weak);
  margin-bottom: 32px;
}

.cta-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 16px;
}

/* ===== Footer ===== */
.site-footer {
  background: #2B333A;
  color: #C9D2D8;
  padding-top: 64px;
  font-size: 14px;
}

.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px 48px;
  display: grid;
  grid-template-columns: 2fr 1fr 1.2fr;
  gap: 48px;
}

.footer-brand .brand {
  color: #fff;
  font-size: 18px;
  margin-bottom: 14px;
}
.footer-brand .brand:hover { color: var(--accent); }

.footer-desc {
  color: #9AA7B0;
  line-height: 1.7;
  max-width: 340px;
  margin-top: 12px;
}

.footer-col-title {
  font-size: 15px;
  color: #fff;
  margin-bottom: 16px;
  font-weight: 600;
}

.footer-col ul li {
  margin-bottom: 10px;
}

.footer-col a {
  color: #C9D2D8;
  transition: color var(--transition);
}
.footer-col a:hover { color: #fff; }

.footer-contact-list li {
  line-height: 1.6;
  color: #AEB9C0;
  margin-bottom: 10px;
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding: 20px 0;
}

.footer-bottom .container {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 32px;
  justify-content: space-between;
  color: #8A98A1;
  font-size: 13px;
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .intro-grid { gap: 40px; }
  .intro-image img { height: 360px; }
  .point-card { padding: 24px 22px; }
}

@media (max-width: 768px) {
  body { font-size: 15px; }

  .section { padding: 64px 0; }

  .header-inner { height: 52px; gap: 12px; }

  .main-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: #fff;
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow-md);
    padding: 12px;
    display: none;
  }
  .main-nav.open { display: flex; }

  .main-nav a {
    padding: 12px 16px;
    border-radius: var(--radius-sm);
  }

  .header-actions { margin-left: auto; }

  .nav-toggle { display: flex; }

  .category-hero {
    padding: 64px 0 56px;
  }
  .category-hero h1 { font-size: 32px; }
  .hero-subtitle { font-size: 16px; }

  .intro-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .intro-image img { height: 260px; }

  .points-grid {
    grid-template-columns: 1fr;
    gap: 18px;
  }
  .point-card.wide { grid-column: auto; }

  .link-cards {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .link-card { padding: 18px; gap: 16px; }
  .link-card img { width: 112px; height: 88px; }

  .cta-inner h2 { font-size: 24px; }

  .footer-inner {
    grid-template-columns: 1fr;
    gap: 32px;
    padding-bottom: 32px;
  }

  .footer-bottom .container {
    flex-direction: column;
    gap: 8px;
    text-align: center;
  }
}

@media (max-width: 520px) {
  .container { padding: 0 16px; }

  .brand { font-size: 16px; }
  .brand-icon { width: 24px; height: 24px; }

  .header-actions .btn-sm { display: none; }

  .category-hero h1 { font-size: 28px; }
  .hero-actions { flex-direction: column; align-items: stretch; }
  .hero-actions .btn { width: 100%; }

  .intro-image img { height: 200px; }

  .link-card {
    flex-direction: column;
    align-items: flex-start;
  }
  .link-card img {
    width: 100%;
    height: 140px;
  }

  .cta-actions { flex-direction: column; align-items: stretch; }
  .cta-actions .btn { width: 100%; }
}

/* roulang page: category2 */
:root {
            --primary: #2C5F7C;
            --primary-dark: #244A63;
            --primary-light: #E8F0F4;
            --accent: #B26A4B;
            --accent-light: #F7E9E2;
            --sand: #F4EFE6;
            --bg: #F7F6F3;
            --card-bg: #FFFFFF;
            --border: #EAE6DE;
            --text: #2B2B2B;
            --text-light: #6B7280;
            --text-muted: #9CA3AF;
            --white: #FFFFFF;
            --radius: 12px;
            --radius-btn: 8px;
            --radius-badge: 99px;
            --shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
            --shadow-hover: 0 8px 24px rgba(0, 0, 0, 0.08);
            --font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
            --container: 1200px;
            --nav-height: 56px;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-family);
            font-size: 16px;
            line-height: 1.8;
            color: var(--text);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
        }
        img {
            max-width: 100%;
            display: block;
            height: auto;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: color .2s ease;
        }
        a:hover {
            color: var(--primary-dark);
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            color: inherit;
        }
        button {
            cursor: pointer;
            border: none;
            background: none;
        }
        ul,
        ol {
            list-style: none;
        }
        .container {
            max-width: var(--container);
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 15px;
            font-weight: 600;
            padding: 12px 28px;
            border-radius: var(--radius-btn);
            white-space: nowrap;
            transition: background .25s, color .25s, box-shadow .25s, transform .2s;
            border: 1px solid transparent;
            text-decoration: none;
        }
        .btn:focus-visible,
        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        select:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }
        .btn-primary {
            background: var(--primary);
            color: var(--white);
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            color: var(--white);
            transform: translateY(-2px);
            box-shadow: var(--shadow-hover);
        }
        .btn-primary:active {
            transform: translateY(0);
            box-shadow: none;
        }
        .btn-outline {
            background: transparent;
            border-color: var(--primary);
            color: var(--primary);
        }
        .btn-outline:hover {
            background: var(--primary);
            color: var(--white);
            transform: translateY(-2px);
            box-shadow: var(--shadow-hover);
        }
        .btn-outline:active {
            transform: translateY(0);
            background: var(--primary-dark);
        }
        .btn-accent {
            background: var(--accent);
            color: var(--white);
        }
        .btn-accent:hover {
            background: #9d5a3c;
            color: var(--white);
            transform: translateY(-2px);
            box-shadow: var(--shadow-hover);
        }
        .btn-sm {
            padding: 8px 18px;
            font-size: 14px;
        }
        .badge {
            display: inline-block;
            font-size: 12px;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: var(--radius-badge);
            background: var(--accent-light);
            color: var(--accent);
            line-height: 1.6;
        }
        .badge-primary {
            background: var(--primary-light);
            color: var(--primary);
        }
        /* Header */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            height: var(--nav-height);
            background: rgba(255, 255, 255, .9);
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
            border-bottom: 1px solid var(--border);
        }
        .header-inner {
            max-width: var(--container);
            height: var(--nav-height);
            margin: 0 auto;
            padding: 0 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
        }
        .brand {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 17px;
            font-weight: 700;
            color: var(--text);
            text-decoration: none;
            white-space: nowrap;
        }
        .brand:hover {
            color: var(--primary);
        }
        .brand-icon {
            width: 24px;
            height: 24px;
            flex-shrink: 0;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .main-nav a {
            font-size: 15px;
            font-weight: 500;
            color: var(--text);
            text-decoration: none;
            padding: 8px 16px;
            border-radius: 6px;
            transition: background .2s, color .2s;
            white-space: nowrap;
        }
        .main-nav a:hover {
            color: var(--primary);
            background: var(--primary-light);
        }
        .main-nav a.active {
            color: var(--primary);
            font-weight: 600;
            box-shadow: inset 0 -2px 0 var(--primary);
            background: transparent;
        }
        .header-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 6px;
            border-radius: 4px;
        }
        .nav-toggle-bar {
            width: 20px;
            height: 2px;
            background: var(--text);
            border-radius: 2px;
            transition: transform .25s, opacity .25s;
        }
        .nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }
        .nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(2) {
            opacity: 0;
        }
        .nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }
        /* Page Banner */
        .page-banner {
            background: url('/assets/images/backpic/back-1.webp') center center / cover no-repeat;
            padding: 96px 0;
            position: relative;
        }
        .banner-card {
            background: rgba(255, 255, 255, .92);
            border: 1px solid rgba(255, 255, 255, .7);
            border-radius: var(--radius);
            padding: 40px 48px;
            max-width: 660px;
            box-shadow: var(--shadow);
        }
        .banner-card h1 {
            font-size: 40px;
            font-weight: 700;
            line-height: 1.25;
            color: var(--text);
            letter-spacing: .5px;
            margin-bottom: 16px;
        }
        .banner-card p {
            font-size: 16px;
            color: var(--text-light);
            line-height: 1.8;
            margin-bottom: 28px;
            max-width: 520px;
        }
        .banner-actions {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }
        /* Section Base */
        .section {
            padding: 96px 0;
        }
        .section-head {
            text-align: center;
            max-width: 640px;
            margin: 0 auto 56px;
        }
        .section-head h2 {
            font-size: 30px;
            font-weight: 700;
            line-height: 1.3;
            margin-bottom: 12px;
        }
        .section-head p {
            font-size: 16px;
            color: var(--text-light);
        }
        .section-sand {
            background: var(--sand);
        }
        .section-light {
            background: var(--primary-light);
        }
        .section-white {
            background: var(--white);
        }
        /* Steps */
        .steps-section {
            padding: 96px 0;
        }
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            margin-top: 8px;
        }
        .step-item {
            background: var(--card-bg);
            border-radius: var(--radius);
            padding: 36px 28px 32px;
            border: 1px solid var(--border);
            position: relative;
            transition: box-shadow .3s, transform .25s;
        }
        .step-item:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }
        .step-num {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--primary);
            color: var(--white);
            font-size: 18px;
            font-weight: 700;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 20px;
        }
        .step-item h3 {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 10px;
        }
        .step-item p {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.7;
        }
        .step-item::after {
            content: "";
            position: absolute;
            top: 50%;
            right: -24px;
            width: 24px;
            height: 1px;
            background: var(--border);
            transform: translateY(-50%);
        }
        .step-item:last-child::after {
            display: none;
        }
        /* Tools */
        .tools-section {
            padding: 96px 0;
            background: var(--white);
        }
        .tools-grid {
            display: grid;
            grid-template-columns: 1.2fr .8fr;
            grid-template-areas:
                "main-card sms-card"
                "main-card scan-card"
                "history-card history-card";
            gap: 24px;
        }
        .tool-card {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 28px;
            transition: box-shadow .3s, transform .2s;
            display: flex;
            flex-direction: column;
        }
        .tool-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
        }
        .tool-card-primary {
            grid-area: main-card;
            padding: 0;
            overflow: hidden;
        }
        .tool-media {
            height: 220px;
            overflow: hidden;
            background: var(--primary-light);
        }
        .tool-media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .4s;
        }
        .tool-card-primary:hover .tool-media img {
            transform: scale(1.03);
        }
        .tool-body {
            display: flex;
            flex-direction: column;
            flex: 1;
        }
        .tool-card-primary .tool-body {
            padding: 28px 32px 32px;
        }
        .tool-tag {
            align-self: flex-start;
            background: var(--accent-light);
            color: var(--accent);
            font-size: 12px;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: var(--radius-badge);
            margin-bottom: 14px;
        }
        .tool-card h3 {
            font-size: 22px;
            font-weight: 600;
            margin-bottom: 12px;
        }
        .tool-card p {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.7;
            margin-bottom: 16px;
        }
        .tool-points {
            margin-bottom: 20px;
            flex: 1;
        }
        .tool-points li {
            position: relative;
            padding-left: 22px;
            font-size: 14px;
            color: var(--text);
            line-height: 1.7;
            margin-bottom: 6px;
        }
        .tool-points li::before {
            content: '';
            position: absolute;
            left: 2px;
            top: 9px;
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--primary);
        }
        .tool-card-sms {
            grid-area: sms-card;
            border-left: 3px solid var(--primary);
        }
        .tool-card-scan {
            grid-area: scan-card;
            border-left: 3px solid var(--accent);
        }
        .tool-card-wide {
            grid-area: history-card;
            flex-direction: row;
            align-items: center;
            gap: 24px;
        }
        .tool-card-wide .tool-body {
            flex: 1;
        }
        .tool-card-wide .tool-points {
            display: flex;
            gap: 24px;
            flex-wrap: wrap;
        }
        .tool-card-wide .tool-points li {
            margin-bottom: 0;
        }
        /* FAQ */
        .faq-section {
            padding: 96px 0;
            background: var(--sand);
        }
        .faq-layout {
            display: grid;
            grid-template-columns: .35fr .65fr;
            gap: 48px;
            align-items: start;
        }
        .faq-head h2 {
            font-size: 30px;
            font-weight: 700;
            margin-bottom: 16px;
        }
        .faq-head p {
            font-size: 15px;
            color: var(--text-light);
        }
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            transition: box-shadow .25s;
        }
        .faq-item.active {
            box-shadow: var(--shadow);
            border-color: var(--primary);
        }
        .faq-q {
            width: 100%;
            text-align: left;
            padding: 20px 24px;
            font-size: 16px;
            font-weight: 600;
            color: var(--text);
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
        }
        .faq-q::after {
            content: '+';
            font-size: 22px;
            font-weight: 400;
            color: var(--primary);
            line-height: 1;
            transition: transform .3s;
        }
        .faq-item.active .faq-q::after {
            transform: rotate(45deg);
        }
        .faq-a {
            max-height: 0;
            overflow: hidden;
            transition: max-height .35s ease;
            border-top: 1px solid transparent;
        }
        .faq-item.active .faq-a {
            max-height: 400px;
            border-top-color: var(--border);
        }
        .faq-a p {
            padding: 18px 24px 24px;
            font-size: 15px;
            color: var(--text-light);
            line-height: 1.75;
        }
        /* Contact */
        .contact-section {
            padding: 96px 0;
            background: var(--white);
        }
        .contact-card {
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: 16px;
            padding: 48px;
            display: grid;
            grid-template-columns: .45fr .55fr;
            gap: 48px;
            box-shadow: var(--shadow);
            align-items: start;
        }
        .contact-info h2 {
            font-size: 28px;
            font-weight: 700;
            margin-bottom: 16px;
        }
        .contact-info p {
            font-size: 15px;
            color: var(--text-light);
            margin-bottom: 28px;
        }
        .contact-methods {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .contact-methods li {
            position: relative;
            padding-left: 28px;
            font-size: 14px;
            color: var(--text);
            line-height: 1.6;
        }
        .contact-methods li::before {
            content: '';
            position: absolute;
            left: 4px;
            top: 7px;
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: var(--primary);
        }
        .contact-form {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 32px;
            box-shadow: var(--shadow);
        }
        .form-group {
            margin-bottom: 20px;
        }
        .form-group label {
            display: block;
            font-size: 14px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 8px;
        }
        .form-group input,
        .form-group select,
        .form-group textarea {
            width: 100%;
            height: 44px;
            border: 1px solid var(--border);
            border-radius: var(--radius-btn);
            padding: 0 14px;
            background: var(--white);
            font-size: 15px;
            color: var(--text);
            transition: border-color .2s, box-shadow .2s;
        }
        .form-group textarea {
            height: auto;
            padding: 12px 14px;
            resize: vertical;
            line-height: 1.6;
        }
        .form-group input:focus,
        .form-group select:focus,
        .form-group textarea:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 2px rgba(44, 95, 124, .18);
            outline: none;
        }
        .contact-form .btn {
            width: 100%;
            margin-top: 4px;
        }
        /* Footer */
        .site-footer {
            background: var(--primary-dark);
            color: rgba(255, 255, 255, .8);
            padding: 64px 0 0;
        }
        .footer-inner {
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 24px;
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr;
            gap: 48px;
        }
        .footer-brand .brand {
            color: var(--white);
            font-size: 18px;
            margin-bottom: 16px;
        }
        .footer-brand .brand:hover {
            color: var(--white);
        }
        .footer-desc {
            font-size: 14px;
            line-height: 1.75;
            color: rgba(255, 255, 255, .7);
            margin-top: 12px;
            max-width: 320px;
        }
        .footer-col-title {
            font-size: 15px;
            font-weight: 600;
            color: var(--white);
            margin-bottom: 16px;
        }
        .footer-col ul {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .footer-col a {
            color: rgba(255, 255, 255, .7);
            font-size: 14px;
            transition: color .2s;
        }
        .footer-col a:hover {
            color: var(--white);
        }
        .footer-contact-list li {
            font-size: 14px;
            line-height: 1.6;
            color: rgba(255, 255, 255, .7);
        }
        .footer-bottom {
            margin-top: 48px;
            border-top: 1px solid rgba(255, 255, 255, .12);
            padding: 24px 0;
        }
        .footer-bottom .container {
            display: flex;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
            font-size: 13px;
            color: rgba(255, 255, 255, .55);
        }
        /* Responsive */
        @media (max-width: 1024px) {
            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }
            .step-item::after {
                display: none;
            }
            .tools-grid {
                grid-template-columns: 1fr;
                grid-template-areas:
                    "main-card"
                    "sms-card"
                    "scan-card"
                    "history-card";
            }
            .tool-card-wide {
                flex-direction: column;
                align-items: flex-start;
            }
            .faq-layout {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .contact-card {
                grid-template-columns: 1fr;
                padding: 32px;
                gap: 32px;
            }
            .footer-inner {
                grid-template-columns: 1fr 1fr;
            }
            .footer-brand {
                grid-column: 1 / -1;
            }
        }
        @media (max-width: 768px) {
            .header-inner {
                padding: 0 16px;
            }
            .main-nav {
                display: none;
                position: fixed;
                top: var(--nav-height);
                left: 0;
                right: 0;
                background: var(--white);
                flex-direction: column;
                align-items: flex-start;
                padding: 16px 24px 24px;
                border-bottom: 1px solid var(--border);
                box-shadow: var(--shadow-hover);
                gap: 8px;
            }
            .main-nav.open {
                display: flex;
            }
            .main-nav a {
                width: 100%;
                padding: 12px 8px;
                border-radius: 6px;
            }
            .main-nav a.active {
                box-shadow: none;
                background: var(--primary-light);
            }
            .nav-toggle {
                display: flex;
            }
            .header-actions .btn {
                display: none;
            }
            .page-banner {
                padding: 64px 0;
            }
            .banner-card {
                padding: 28px 24px;
                max-width: 100%;
            }
            .banner-card h1 {
                font-size: 32px;
            }
            .steps-section,
            .tools-section,
            .faq-section,
            .contact-section,
            .section {
                padding: 64px 0;
            }
            .section-head {
                margin-bottom: 40px;
            }
            .section-head h2 {
                font-size: 24px;
            }
            .steps-grid {
                grid-template-columns: 1fr;
            }
            .tools-grid {
                gap: 16px;
            }
            .tool-card {
                padding: 20px;
            }
            .tool-card-primary .tool-body {
                padding: 20px;
            }
            .tool-media {
                height: 160px;
            }
            .tool-points {
                margin-bottom: 16px;
            }
            .tool-card-wide .tool-points {
                flex-direction: column;
                gap: 6px;
            }
            .contact-card {
                padding: 20px;
                grid-template-columns: 1fr;
            }
            .contact-form {
                padding: 20px;
            }
            .form-group input {
                height: 42px;
            }
            .footer-inner {
                grid-template-columns: 1fr;
                gap: 32px;
                padding: 0 20px;
            }
            .footer-brand {
                grid-column: auto;
            }
            .footer-bottom .container {
                flex-direction: column;
                align-items: flex-start;
                gap: 6px;
                padding: 0 20px;
            }
        }
        @media (max-width: 520px) {
            .banner-actions {
                flex-direction: column;
                align-items: stretch;
            }
            .btn {
                width: 100%;
            }
            .tool-card-wide .tool-points {
                gap: 4px;
            }
        }