/* roulang page: index */
:root {
  --primary: #1B7A8C;
  --primary-light: #E3F2F5;
  --primary-dark: #12515F;
  --accent: #F59E0B;
  --success: #10B981;
  --danger: #EF4444;
  --bg: #F6F8FA;
  --bg-alt: #EDF2F5;
  --card: #FFFFFF;
  --text: #1E293B;
  --text-light: #64748B;
  --text-dim: #94A3B8;
  --border: #E2E8F0;
  --radius-card: 12px;
  --radius-btn: 8px;
  --radius-full: 999px;
  --shadow-card: 0 2px 8px rgba(30, 41, 59, 0.06);
  --shadow-hover: 0 8px 24px rgba(30, 41, 59, 0.10);
  --shadow-dock: 0 4px 24px rgba(30, 41, 59, 0.08);
  --transition: 0.25s ease;
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "HarmonyOS Sans SC", sans-serif;
  font-size: 16px;
  line-height: 1.75;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
  display: block;
  height: auto;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition);
}

button {
  font-family: inherit;
  border: none;
  background: none;
  cursor: pointer;
  color: inherit;
}

ul,
ol {
  list-style: none;
}

input {
  font-family: inherit;
}

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

a:focus-visible,
button:focus-visible,
input:focus-visible {
  outline: 3px solid rgba(27, 122, 140, 0.2);
  outline-offset: 2px;
}

/* ===== Dock Navigation ===== */
.dock-nav {
  position: fixed;
  top: 16px;
  left: 50%;
  transform: translateX(-50%);
  width: 80%;
  max-width: 1200px;
  z-index: 1000;
  display: flex;
  flex-direction: column;
}

.dock-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  width: 100%;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-radius: var(--radius-full);
  padding: 12px 24px;
  box-shadow: var(--shadow-dock);
  border: 1px solid rgba(255, 255, 255, 0.6);
  transition: box-shadow var(--transition), background var(--transition);
}

.dock-nav.scrolled .dock-inner {
  background: rgba(255, 255, 255, 0.95);
  box-shadow: 0 8px 28px rgba(30, 41, 59, 0.10);
}

.dock-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.logo-mark {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff;
  font-weight: 800;
  font-size: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  line-height: 1;
}

.logo-text {
  font-size: 17px;
  font-weight: 700;
  color: var(--text);
  white-space: nowrap;
}

.dock-links {
  display: flex;
  align-items: center;
  gap: 28px;
}

.dock-links a {
  position: relative;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-light);
  padding: 6px 2px;
  transition: color var(--transition);
}

.dock-links a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
  transition: width var(--transition);
}

.dock-links a:hover {
  color: var(--primary);
}

.dock-links a:hover::after {
  width: 100%;
}

.dock-links a.active {
  color: var(--primary);
  font-weight: 600;
}

.dock-links a.active::after {
  width: 100%;
}

.dock-actions {
  display: flex;
  align-items: center;
  gap: 14px;
}

.search-toggle {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-light);
  transition: background var(--transition), color var(--transition);
}

.search-toggle:hover {
  background: var(--primary-light);
  color: var(--primary);
}

.btn-dock {
  background: var(--primary);
  color: #fff;
  font-size: 14px;
  font-weight: 600;
  padding: 9px 20px;
  border-radius: var(--radius-full);
  transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
  white-space: nowrap;
}

.btn-dock:hover {
  background: #156472;
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(27, 122, 140, 0.3);
}

.btn-dock:active {
  transform: scale(0.98);
}

.menu-toggle {
  display: none;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  align-items: center;
  justify-content: center;
  color: var(--text);
  transition: background var(--transition), color var(--transition);
}

.menu-toggle:hover {
  background: var(--primary-light);
  color: var(--primary);
}

.dock-search {
  position: absolute;
  top: calc(100% + 10px);
  left: 0;
  right: 0;
  background: #fff;
  border-radius: 16px;
  padding: 4px 8px;
  box-shadow: var(--shadow-hover);
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: all 0.3s ease;
  z-index: 1001;
}

.dock-search.open {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.dock-search input {
  width: 100%;
  padding: 12px 16px;
  border: none;
  background: transparent;
  font-size: 14px;
  color: var(--text);
}

.dock-search input::placeholder {
  color: var(--text-dim);
}

.mobile-menu {
  position: absolute;
  top: calc(100% + 10px);
  left: 0;
  right: 0;
  background: #fff;
  border-radius: 16px;
  box-shadow: var(--shadow-hover);
  padding: 16px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: all 0.3s ease;
  z-index: 1001;
}

.mobile-menu.open {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.mobile-menu a {
  display: block;
  padding: 12px 16px;
  border-radius: 10px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text);
  transition: background var(--transition), color var(--transition);
}

.mobile-menu a:hover {
  background: var(--primary-light);
  color: var(--primary);
}

.mobile-menu a.active {
  background: var(--primary-light);
  color: var(--primary);
  font-weight: 600;
}

.mobile-cta {
  margin-top: 8px;
  background: var(--primary);
  color: #fff !important;
  text-align: center;
  border-radius: 12px;
  font-weight: 600;
}

.mobile-cta:hover {
  background: #156472;
  color: #fff !important;
}

/* ===== Hero ===== */
.hero {
  position: relative;
  padding: 180px 0 100px;
  background: linear-gradient(120deg, #F6F8FA 0%, #E3F2F5 100%);
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  top: -120px;
  right: -80px;
  width: 420px;
  height: 420px;
  border-radius: 50%;
  background: rgba(27, 122, 140, 0.08);
  z-index: 0;
}

.hero::after {
  content: "";
  position: absolute;
  bottom: -60px;
  left: -40px;
  width: 260px;
  height: 260px;
  border-radius: 50%;
  background: rgba(27, 122, 140, 0.06);
  z-index: 0;
}

.hero-grid {
  display: grid;
  grid-template-columns: 55% 45%;
  gap: 60px;
  align-items: center;
  position: relative;
  z-index: 2;
}

.hero-copy {
  position: relative;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.7);
  border: 1px solid rgba(27, 122, 140, 0.2);
  color: var(--primary);
  font-size: 13px;
  font-weight: 600;
  padding: 6px 14px;
  border-radius: var(--radius-full);
  margin-bottom: 24px;
}

.hero h1 {
  font-size: 42px;
  font-weight: 800;
  line-height: 1.2;
  color: var(--text);
  margin-bottom: 20px;
  letter-spacing: -0.02em;
}

.hero-sub {
  font-size: 17px;
  line-height: 1.75;
  color: var(--text-light);
  margin-bottom: 32px;
  max-width: 520px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 40px;
}

.btn-primary,
.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 15px;
  font-weight: 600;
  padding: 14px 32px;
  border-radius: var(--radius-btn);
  transition: all var(--transition);
}

.btn-primary {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 4px 12px rgba(27, 122, 140, 0.25);
}

.btn-primary:hover {
  background: #156472;
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(27, 122, 140, 0.3);
}

.btn-primary:active {
  transform: scale(0.98);
}

.btn-secondary {
  background: #fff;
  color: var(--primary);
  border: 1px solid var(--primary);
}

.btn-secondary:hover {
  background: var(--primary-light);
  transform: translateY(-2px);
}

.btn-secondary:active {
  transform: scale(0.98);
}

.hero-trust {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--text-light);
  font-size: 14px;
}

.stars {
  color: var(--accent);
  letter-spacing: 2px;
}

.hero-visual {
  position: relative;
}

.hero-visual-bg {
  position: absolute;
  inset: 24px -8px -8px 24px;
  background-size: cover;
  background-position: center;
  border-radius: 20px;
  opacity: 0.4;
  z-index: 0;
}

.hero-img {
  position: relative;
  z-index: 1;
  width: 100%;
  height: 420px;
  object-fit: cover;
  border-radius: 16px;
  box-shadow: 0 16px 40px rgba(30, 41, 59, 0.15);
}

.hero-float-card {
  position: absolute;
  left: -28px;
  bottom: 28px;
  z-index: 3;
  display: flex;
  align-items: center;
  gap: 12px;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-radius: 14px;
  padding: 16px 20px;
  box-shadow: 0 12px 32px rgba(30, 41, 59, 0.12);
}

.float-icon {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--success);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 16px;
  flex-shrink: 0;
}

.hero-float-card strong {
  display: block;
  font-size: 14px;
  color: var(--text);
  line-height: 1.3;
}

.hero-float-card span {
  font-size: 12px;
  color: var(--text-light);
}

/* ===== Stats Bar ===== */
.stats-bar {
  background: #fff;
  border-bottom: 1px solid var(--border);
  padding: 40px 0;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
}

.stat-item {
  text-align: center;
  padding: 8px 16px;
}

.stat-num {
  font-family: "DIN Alternate", "Bebas Neue", sans-serif;
  font-size: 46px;
  font-weight: 700;
  color: var(--primary);
  line-height: 1.1;
  display: block;
}

.stat-num em {
  font-size: 26px;
  font-style: normal;
  margin-left: 2px;
  font-weight: 700;
}

.stat-label {
  font-size: 13px;
  color: var(--text-light);
  margin-top: 6px;
  display: block;
}

/* ===== Steps Section ===== */
.steps-section {
  background: var(--bg-alt);
  padding: 96px 0;
}

.section-head {
  margin-bottom: 48px;
}

.section-head h2 {
  font-size: 28px;
  font-weight: 700;
  color: var(--text);
  position: relative;
  padding-bottom: 16px;
  margin-bottom: 12px;
  line-height: 1.3;
}

.section-head h2::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 52px;
  height: 4px;
  background: var(--primary);
  border-radius: 4px;
}

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

.steps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 48px;
  position: relative;
}

.steps-grid::before {
  content: "";
  position: absolute;
  top: 52px;
  left: 15%;
  right: 15%;
  border-top: 2px dashed #D0D9E0;
  z-index: 0;
}

.step-item {
  position: relative;
  z-index: 1;
  background: var(--card);
  border-radius: 16px;
  padding: 32px 28px;
  box-shadow: var(--shadow-card);
  transition: box-shadow var(--transition);
}

.step-item:hover {
  box-shadow: var(--shadow-hover);
}

.step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  border-radius: 12px;
  background: var(--primary-light);
  color: var(--primary);
  font-size: 20px;
  font-weight: 800;
  margin-bottom: 20px;
  transition: background var(--transition), color var(--transition);
}

.step-item:hover .step-num {
  background: var(--primary);
  color: #fff;
}

.step-icon {
  font-size: 28px;
  margin-bottom: 14px;
  display: block;
}

.step-item h3 {
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 12px;
  color: var(--text);
}

.step-item p {
  font-size: 14px;
  color: var(--text-light);
  line-height: 1.7;
}

/* ===== Cases Section ===== */
.cases-section {
  padding: 96px 0;
  background: var(--bg);
}

.case-list {
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.case-card {
  display: grid;
  grid-template-columns: 40% 60%;
  gap: 0;
  background: #fff;
  border-radius: 16px;
  overflow: hidden;
  box-shadow: var(--shadow-card);
  transition: transform var(--transition), box-shadow var(--transition);
}

.case-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}

.case-media img {
  width: 100%;
  height: 100%;
  min-height: 240px;
  object-fit: cover;
}

.case-body {
  padding: 36px 40px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.tag {
  align-self: flex-start;
  display: inline-block;
  background: var(--primary-light);
  color: var(--primary);
  font-size: 12px;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: var(--radius-full);
  margin-bottom: 14px;
}

.case-body h3 {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--text);
}

.case-body > p {
  font-size: 15px;
  color: var(--text-light);
  margin-bottom: 20px;
  line-height: 1.7;
}

.case-result {
  display: flex;
  align-items: baseline;
  gap: 10px;
}

.case-result strong {
  font-family: "DIN Alternate", "Bebas Neue", sans-serif;
  font-size: 36px;
  color: var(--accent);
  font-weight: 700;
  line-height: 1.1;
}

.case-result span {
  font-size: 14px;
  color: var(--text-light);
}

/* ===== FAQ Section ===== */
.faq-section {
  background: var(--bg-alt);
  padding: 96px 0;
}

.faq-wrap {
  display: grid;
  grid-template-columns: 1fr 280px;
  gap: 48px;
  align-items: start;
}

.faq-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.faq-item {
  background: #fff;
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
  overflow: hidden;
  transition: box-shadow var(--transition);
}

.faq-item.active {
  box-shadow: var(--shadow-hover);
}

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 22px 28px;
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  text-align: left;
  transition: color var(--transition);
}

.faq-question:hover {
  color: var(--primary);
}

.faq-icon {
  width: 28px;
  height: 28px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--primary-light);
  color: var(--primary);
  font-size: 20px;
  font-weight: 400;
  transition: transform 0.3s ease, background 0.3s ease, color 0.3s ease;
}

.faq-item.active .faq-icon {
  transform: rotate(45deg);
  background: var(--primary);
  color: #fff;
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease;
}

.faq-item.active .faq-answer {
  max-height: 360px;
}

.faq-answer p {
  margin: 0;
  padding: 16px 28px 24px;
  border-top: 1px solid var(--border);
  font-size: 15px;
  color: var(--text-light);
  line-height: 1.75;
}

.faq-side {
  background: #fff;
  border-radius: 16px;
  padding: 32px 28px;
  box-shadow: var(--shadow-card);
  text-align: center;
  position: sticky;
  top: 120px;
}

.faq-side h3 {
  font-size: 18px;
  margin-bottom: 10px;
  color: var(--text);
}

.faq-side p {
  font-size: 14px;
  color: var(--text-light);
  margin-bottom: 20px;
  line-height: 1.6;
}

.faq-side a {
  display: inline-block;
  background: var(--primary);
  color: #fff;
  font-size: 14px;
  font-weight: 600;
  padding: 10px 28px;
  border-radius: var(--radius-full);
  transition: background var(--transition), transform var(--transition);
}

.faq-side a:hover {
  background: #156472;
  transform: translateY(-2px);
}

/* ===== CTA Section ===== */
.cta-section {
  background: var(--primary-dark);
  padding: 96px 0;
  position: relative;
}

.cta-section::before,
.cta-section::after {
  content: "";
  display: block;
  height: 1px;
  background: rgba(227, 242, 245, 0.3);
  position: absolute;
  left: 0;
  right: 0;
}

.cta-section::before {
  top: 0;
}

.cta-section::after {
  bottom: 0;
}

.cta-content {
  text-align: center;
  max-width: 640px;
  margin: 0 auto;
}

.cta-content h2 {
  font-size: 30px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 16px;
  line-height: 1.3;
}

.cta-content p {
  font-size: 16px;
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: 36px;
  line-height: 1.7;
}

.btn-cta {
  display: inline-block;
  background: var(--accent);
  color: var(--text);
  font-size: 16px;
  font-weight: 700;
  padding: 16px 48px;
  border-radius: 12px;
  transition: background var(--transition), filter var(--transition), transform var(--transition), box-shadow var(--transition);
  box-shadow: 0 8px 24px rgba(245, 158, 11, 0.3);
}

.btn-cta:hover {
  background: #fbbf24;
  transform: translateY(-2px);
  box-shadow: 0 12px 28px rgba(245, 158, 11, 0.35);
}

.btn-cta:active {
  transform: scale(0.98);
}

/* ===== News Section ===== */
.news-section {
  padding: 96px 0;
  background: var(--bg);
}

.news-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}

.news-card {
  position: relative;
  display: block;
  background: #fff;
  border-radius: var(--radius-card);
  padding: 28px 28px 24px;
  box-shadow: var(--shadow-card);
  transition: all var(--transition);
  overflow: hidden;
}

.news-card::after {
  content: "→";
  position: absolute;
  top: 20px;
  right: 20px;
  font-size: 18px;
  color: var(--primary);
  opacity: 0;
  transform: translateX(-8px);
  transition: all var(--transition);
}

.news-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-4px);
}

.news-card:hover::after {
  opacity: 1;
  transform: translateX(0);
}

.news-card:hover h3 {
  color: var(--primary);
}

.news-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 14px;
}

.news-cat {
  background: var(--primary-light);
  color: var(--primary);
  font-size: 12px;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: var(--radius-full);
}

.news-date {
  font-size: 13px;
  color: var(--text-dim);
}

.news-card h3 {
  font-size: 18px;
  font-weight: 600;
  line-height: 1.4;
  margin-bottom: 10px;
  color: var(--text);
  transition: color var(--transition);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.news-card p {
  font-size: 14px;
  color: var(--text-light);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.news-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 60px 24px;
  background: #fff;
  border-radius: 16px;
  box-shadow: var(--shadow-card);
  text-align: center;
  grid-column: 1 / -1;
}

.news-empty .empty-icon {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--primary-light);
  color: var(--primary);
  font-size: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
}

.news-empty p {
  color: var(--text-dim);
  font-size: 15px;
}

/* ===== Footer ===== */
.site-footer {
  background: #fff;
  border-top: 1px solid var(--border);
  padding: 72px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.4fr;
  gap: 48px;
  padding-bottom: 48px;
}

.footer-brand .logo-text {
  font-size: 18px;
}

.footer-brand p {
  margin-top: 14px;
  font-size: 14px;
  color: var(--text-light);
  line-height: 1.7;
  max-width: 260px;
}

.footer-col h4 {
  font-size: 15px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 16px;
}

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

.footer-col ul a {
  font-size: 14px;
  color: var(--text-light);
  transition: color var(--transition);
}

.footer-col ul a:hover {
  color: var(--primary);
}

.footer-col .contact-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 14px;
  color: var(--text-light);
  margin-bottom: 12px;
  line-height: 1.6;
}

.footer-bottom {
  border-top: 1px solid var(--border);
  padding: 24px 0;
  text-align: center;
  font-size: 13px;
  color: var(--text-dim);
}

/* ===== Responsive ===== */
@media (min-width: 768px) {
  .menu-toggle {
    display: none !important;
  }
}

@media (max-width: 1023px) and (min-width: 768px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .hero {
    padding: 140px 0 80px;
  }

  .hero-visual {
    max-width: 560px;
  }

  .steps-grid {
    gap: 24px;
  }

  .case-card {
    grid-template-columns: 1fr;
  }

  .case-media img {
    max-height: 300px;
    min-height: 0;
  }

  .case-body {
    padding: 0 32px 32px;
  }

  .faq-wrap {
    grid-template-columns: 1fr;
  }

  .faq-side {
    position: static;
  }
}

@media (max-width: 767px) {
  .dock-nav {
    top: auto;
    bottom: 16px;
    width: 92%;
  }

  .dock-inner {
    padding: 8px 14px;
  }

  .dock-links,
  .btn-dock {
    display: none;
  }

  .menu-toggle {
    display: flex;
  }

  .dock-search,
  .mobile-menu {
    top: auto;
    bottom: calc(100% + 10px);
  }

  .logo-text {
    font-size: 15px;
  }

  .logo-mark {
    width: 32px;
    height: 32px;
    font-size: 16px;
    border-radius: 9px;
  }

  .hero {
    padding: 110px 0 64px;
  }

  .hero h1 {
    font-size: 28px;
  }

  .hero-sub {
    font-size: 15px;
  }

  .hero-actions {
    flex-direction: column;
  }

  .btn-primary,
  .btn-secondary {
    width: 100%;
  }

  .hero-float-card {
    left: 12px;
    right: 12px;
    bottom: 12px;
  }

  .hero-img {
    height: 300px;
  }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }

  .stat-num {
    font-size: 36px;
  }

  .stat-num em {
    font-size: 20px;
  }

  .steps-section {
    padding: 64px 0;
  }

  .steps-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .steps-grid::before {
    display: none;
  }

  .section-head h2 {
    font-size: 22px;
  }

  .cases-section {
    padding: 64px 0;
  }

  .case-card {
    grid-template-columns: 1fr;
  }

  .case-media img {
    height: 200px;
    min-height: auto;
  }

  .case-body {
    padding: 0 24px 28px;
  }

  .case-body h3 {
    font-size: 19px;
  }

  .faq-section {
    padding: 64px 0;
  }

  .faq-wrap {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .faq-side {
    position: static;
  }

  .faq-question {
    padding: 18px 20px;
    font-size: 15px;
  }

  .faq-answer p {
    padding: 14px 20px 20px;
  }

  .cta-section {
    padding: 64px 0;
  }

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

  .btn-cta {
    width: 100%;
    padding: 14px 32px;
  }

  .news-section {
    padding: 64px 0;
  }

  .news-grid {
    grid-template-columns: 1fr;
  }

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

  .footer-bottom {
    padding: 20px 16px;
    font-size: 12px;
  }
}

/* roulang page: article */
:root {
  --primary: #1B7A8C;
  --primary-light: #E3F2F5;
  --primary-deep: #12515F;
  --accent: #F59E0B;
  --success: #10B981;
  --danger: #EF4444;
  --bg: #F6F8FA;
  --bg-sub: #EDF2F5;
  --card-bg: #FFFFFF;
  --text: #1E293B;
  --text-secondary: #64748B;
  --text-weak: #94A3B8;
  --border: #E2E8F0;
  --radius-card: 12px;
  --radius-btn: 8px;
  --radius-full: 999px;
  --shadow-card: 0 2px 8px rgba(30, 41, 59, 0.06);
  --shadow-hover: 0 8px 24px rgba(30, 41, 59, 0.10);
  --shadow-dock: 0 4px 24px rgba(30, 41, 59, 0.08);
  --container: 1200px;
  --font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "HarmonyOS Sans SC", sans-serif;
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-family);
  font-size: 16px;
  line-height: 1.75;
  color: var(--text);
  background-color: var(--bg);
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: var(--primary);
  text-decoration: none;
  transition: color 0.2s ease;
}

ul, ol {
  padding-left: 1.25rem;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding-left: 24px;
  padding-right: 24px;
}

.container-narrow {
  max-width: 860px;
}

/* ===== 按钮 ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 15px;
  font-weight: 600;
  line-height: 1;
  padding: 12px 24px;
  border-radius: var(--radius-btn);
  border: 1px solid transparent;
  transition: all 0.25s ease;
  text-decoration: none;
  white-space: nowrap;
  cursor: pointer;
}

.btn-primary {
  background: var(--primary);
  color: #ffffff;
}

.btn-primary:hover {
  background: #156472;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(27, 122, 140, 0.25);
}

.btn-primary:active {
  transform: scale(0.98);
}

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

.btn-outline:hover {
  background: var(--primary-light);
}

.btn-accent {
  background: var(--accent);
  color: var(--text);
}

.btn-accent:hover {
  filter: brightness(1.06);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(245, 158, 11, 0.32);
}

.btn-sm {
  padding: 9px 18px;
  font-size: 14px;
  border-radius: var(--radius-full);
}

.btn-lg {
  padding: 16px 48px;
  font-size: 16px;
  border-radius: 12px;
}

.btn:focus-visible {
  outline: 3px solid rgba(27, 122, 140, 0.2);
  outline-offset: 2px;
}

/* ===== 浮动 Dock 导航 ===== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding-top: 16px;
}

.dock-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(226, 232, 240, 0.8);
  border-radius: var(--radius-full);
  box-shadow: var(--shadow-dock);
  padding: 10px 20px;
}

.dock-logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 18px;
  font-weight: 700;
  color: var(--text);
  text-decoration: none;
  flex-shrink: 0;
}

.logo-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: var(--primary);
  color: #ffffff;
  font-size: 18px;
  font-weight: 800;
}

.logo-text {
  letter-spacing: 0.01em;
}

.dock-links {
  display: flex;
  align-items: center;
  gap: 2px;
}

.dock-links a {
  display: inline-block;
  padding: 8px 14px;
  border-radius: var(--radius-full);
  font-size: 15px;
  font-weight: 500;
  color: var(--text-secondary);
  text-decoration: none;
  transition: all 0.2s ease;
  position: relative;
}

.dock-links a:hover {
  color: var(--primary);
  background: var(--primary-light);
}

.dock-links a.active {
  color: var(--primary);
  background: var(--primary-light);
  font-weight: 600;
}

.dock-links a.active::after {
  content: "";
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: 4px;
  height: 2px;
  border-radius: 2px;
  background: var(--primary);
}

.dock-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

/* ===== 面包屑 ===== */
.breadcrumb-wrap {
  background: var(--bg);
  padding: 96px 0 20px;
  border-bottom: 1px solid var(--border);
}

.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 14px;
  color: var(--text-weak);
}

.breadcrumb a {
  color: var(--text-secondary);
  text-decoration: none;
  transition: color 0.2s;
}

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

.breadcrumb .sep {
  color: var(--border);
}

.breadcrumb .current {
  color: var(--text);
  max-width: 320px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* ===== 文章主体 ===== */
.article-main {
  padding: 48px 0 0;
}

.article-card {
  background: var(--card-bg);
  border-radius: 16px;
  box-shadow: var(--shadow-card);
  padding: 40px;
  margin-bottom: 48px;
}

.article-cover {
  border-radius: 12px;
  overflow: hidden;
  margin-bottom: 32px;
}

.article-cover img {
  width: 100%;
  aspect-ratio: 16 / 7;
  object-fit: cover;
}

.article-title {
  font-size: 32px;
  font-weight: 700;
  line-height: 1.3;
  color: var(--text);
  margin-bottom: 12px;
}

.article-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 14px;
  color: var(--text-weak);
  padding-bottom: 24px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 32px;
}

.article-meta .dot {
  color: var(--border);
}

.article-content {
  font-size: 16px;
  color: var(--text);
}

.article-content p {
  line-height: 1.8;
  margin-bottom: 24px;
}

.article-content h2,
.article-content h3,
.article-content h4 {
  font-weight: 600;
  color: var(--text);
  margin-top: 36px;
  margin-bottom: 14px;
  line-height: 1.4;
}

.article-content h2 {
  font-size: 22px;
}

.article-content h3 {
  font-size: 19px;
}

.article-content h4 {
  font-size: 17px;
}

.article-content a {
  color: var(--primary);
  text-decoration: underline;
  text-underline-offset: 4px;
}

.article-content a:hover {
  color: #156472;
}

.article-content ul,
.article-content ol {
  margin: 16px 0 24px;
  padding-left: 24px;
}

.article-content li {
  margin-bottom: 8px;
  line-height: 1.8;
}

.article-content blockquote {
  border-left: 4px solid var(--primary);
  background: var(--primary-light);
  padding: 16px 20px;
  border-radius: 0 8px 8px 0;
  margin: 24px 0;
  color: var(--text-secondary);
}

.article-content blockquote p {
  margin-bottom: 0;
}

.article-content img {
  max-width: 100%;
  border-radius: 12px;
  display: block;
  margin: 24px auto;
  box-shadow: var(--shadow-card);
}

.article-content code {
  background: var(--bg-sub);
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 0.9em;
}

.article-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 24px 0;
}

.article-content th,
.article-content td {
  border: 1px solid var(--border);
  padding: 10px 14px;
  text-align: left;
}

.article-content th {
  background: var(--bg-sub);
  font-weight: 600;
}

.article-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  margin-top: 40px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
}

/* ===== 内容未找到 ===== */
.not-found {
  background: var(--card-bg);
  border-radius: 16px;
  box-shadow: var(--shadow-card);
  padding: 64px 40px;
  text-align: center;
  margin-bottom: 48px;
}

.not-found-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 20px;
  background: var(--primary-light);
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
}

.not-found h1 {
  font-size: 28px;
  color: var(--text);
  margin-bottom: 12px;
}

.not-found p {
  color: var(--text-secondary);
  margin-bottom: 24px;
  max-width: 420px;
  margin-left: auto;
  margin-right: auto;
}

/* ===== CTA 区 ===== */
.cta-section {
  background-color: var(--primary-deep);
  background-image: url('/assets/images/backpic/back-1.webp');
  background-size: cover;
  background-position: center;
  position: relative;
  padding: 80px 0;
}

.cta-section::before {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(18, 81, 95, 0.92);
}

.cta-section .container {
  position: relative;
  z-index: 1;
}

.cta-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  flex-wrap: wrap;
}

.cta-text {
  flex: 1 1 320px;
}

.cta-text h2 {
  color: #ffffff;
  font-size: 28px;
  font-weight: 700;
  margin-bottom: 12px;
}

.cta-text p {
  color: rgba(255, 255, 255, 0.7);
  font-size: 16px;
  max-width: 460px;
}

.cta-action .btn-accent {
  background: var(--accent);
  color: var(--text);
}

/* ===== 页脚 ===== */
.site-footer {
  background: var(--bg-sub);
  border-top: 1px solid var(--border);
  padding-top: 64px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
  gap: 40px;
  padding-bottom: 48px;
}

.footer-brand p {
  margin-top: 16px;
  font-size: 14px;
  color: var(--text-secondary);
  max-width: 320px;
  line-height: 1.7;
}

.footer-col h4 {
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 16px;
}

.footer-col ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

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

.footer-col ul a {
  font-size: 14px;
  color: var(--text-secondary);
  text-decoration: none;
  transition: color 0.2s;
}

.footer-col ul a:hover {
  color: var(--primary);
}

.contact-list li {
  font-size: 14px;
  color: var(--text-secondary);
}

.contact-list a {
  color: var(--text-secondary);
}

.contact-list a:hover {
  color: var(--primary);
}

.footer-bottom {
  border-top: 1px solid var(--border);
  padding: 24px 0;
  text-align: center;
  font-size: 13px;
  color: var(--text-weak);
}

.footer-bottom a {
  color: var(--text-weak);
}

.footer-bottom a:hover {
  color: var(--primary);
}

/* ===== 响应式 ===== */
@media (max-width: 1023px) {
  .breadcrumb-wrap {
    padding-top: 80px;
  }

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

  .cta-inner {
    flex-direction: column;
    text-align: center;
  }

  .cta-text p {
    max-width: 100%;
  }
}

@media (max-width: 767px) {
  body {
    padding-bottom: 80px;
  }

  .site-header {
    top: auto;
    bottom: 16px;
    padding-top: 0;
    left: 0;
    right: 0;
  }

  .site-header .container {
    padding-left: 16px;
    padding-right: 16px;
  }

  .dock-nav {
    padding: 8px 12px;
    background: rgba(255, 255, 255, 0.92);
  }

  .dock-logo .logo-text {
    display: none;
  }

  .dock-logo .logo-mark {
    width: 32px;
    height: 32px;
    font-size: 16px;
    border-radius: 8px;
  }

  .dock-links {
    gap: 0;
  }

  .dock-links a {
    font-size: 14px;
    padding: 6px 10px;
  }

  .dock-links a.active::after {
    left: 10px;
    right: 10px;
  }

  .dock-actions .btn {
    padding: 8px 14px;
    font-size: 13px;
  }

  .breadcrumb-wrap {
    padding: 20px 0 16px;
  }

  .breadcrumb .current {
    max-width: 180px;
  }

  .article-main {
    padding-top: 32px;
  }

  .article-card {
    padding: 24px 20px;
    border-radius: 12px;
  }

  .article-title {
    font-size: 26px;
  }

  .article-cover img {
    aspect-ratio: 16 / 9;
  }

  .article-footer {
    flex-direction: column;
    align-items: stretch;
  }

  .article-footer .btn {
    width: 100%;
  }

  .not-found {
    padding: 48px 24px;
  }

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

  .footer-brand p {
    max-width: 100%;
  }

  .cta-section {
    padding: 56px 0;
  }

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

  .cta-action .btn {
    width: 100%;
  }
}

@media (max-width: 520px) {
  .dock-links a {
    font-size: 13px;
    padding: 6px 8px;
  }

  .dock-links a.active::after {
    left: 8px;
    right: 8px;
  }

  .dock-actions .btn {
    padding: 8px 12px;
    font-size: 13px;
  }
}

/* roulang page: category1 */
:root {
            --primary: #1B7A8C;
            --primary-light: #E3F2F5;
            --primary-dark: #12515F;
            --primary-hover: #156472;
            --accent: #F59E0B;
            --success: #10B981;
            --danger: #EF4444;
            --bg: #F6F8FA;
            --bg-alt: #EDF2F5;
            --card-bg: #FFFFFF;
            --text: #1E293B;
            --text-secondary: #64748B;
            --text-muted: #94A3B8;
            --border: #E2E8F0;
            --radius: 12px;
            --radius-btn: 8px;
            --radius-dock: 999px;
            --radius-lg: 16px;
            --shadow-card: 0 2px 8px rgba(30, 41, 59, 0.06);
            --shadow-hover: 0 8px 24px rgba(30, 41, 59, 0.10);
            --shadow-dock: 0 4px 24px rgba(30, 41, 59, 0.08);
            --shadow-float: 0 12px 32px rgba(30, 41, 59, 0.12);
            --transition: all 0.3s ease;
            --font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "HarmonyOS Sans SC", sans-serif;
            --container: 1200px;
            --spacing-section: 80px;
            --spacing-mobile: 48px;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-family);
            background: var(--bg);
            color: var(--text);
            line-height: 1.75;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
        }

        img {
            max-width: 100%;
            display: block;
        }

        a {
            color: inherit;
            text-decoration: none;
        }

        ul {
            list-style: none;
        }

        button {
            font-family: inherit;
            cursor: pointer;
            border: none;
            background: none;
            color: inherit;
        }

        input:focus,
        button:focus,
        a:focus {
            outline: 3px solid rgba(27, 122, 140, 0.20);
            outline-offset: 2px;
        }

        .container {
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 24px;
        }

        section[id] {
            scroll-margin-top: 100px;
        }

        /* ===== 按钮 ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 15px;
            font-weight: 600;
            padding: 12px 28px;
            border-radius: var(--radius-btn);
            transition: var(--transition);
            border: none;
            gap: 8px;
            line-height: 1.4;
        }

        .btn-primary {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 2px 10px rgba(27, 122, 140, 0.25);
        }

        .btn-primary:hover {
            background: var(--primary-hover);
            transform: translateY(-2px);
            box-shadow: var(--shadow-hover);
        }

        .btn-outline {
            background: #fff;
            color: var(--primary);
            border: 1px solid var(--primary);
        }

        .btn-outline:hover {
            background: var(--primary-light);
            transform: translateY(-2px);
        }

        .btn-sm {
            padding: 8px 18px;
            font-size: 14px;
            border-radius: var(--radius-dock);
        }

        .btn-cta {
            display: inline-block;
            background: var(--accent);
            color: var(--text);
            font-weight: 700;
            font-size: 17px;
            padding: 16px 48px;
            border-radius: 12px;
            box-shadow: 0 4px 20px rgba(245, 158, 11, 0.35);
            transition: var(--transition);
        }

        .btn-cta:hover {
            background: #FBBF24;
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(245, 158, 11, 0.40);
        }

        .btn:active {
            transform: scale(0.98);
        }

        /* ===== 浮动 Dock 导航 ===== */
        .site-header {
            position: sticky;
            top: 16px;
            z-index: 1000;
            margin-top: 16px;
            padding: 0 24px;
        }

        .dock-nav {
            max-width: var(--container);
            margin: 0 auto;
            display: flex;
            align-items: center;
            gap: 24px;
            background: rgba(255, 255, 255, 0.85);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-radius: var(--radius-dock);
            padding: 10px 24px;
            box-shadow: var(--shadow-dock);
            border: 1px solid rgba(255, 255, 255, 0.65);
        }

        .dock-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            font-size: 18px;
            white-space: nowrap;
            flex-shrink: 0;
        }

        .logo-mark {
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: var(--primary);
            color: #fff;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            font-weight: 800;
        }

        .dock-links {
            display: flex;
            gap: 4px;
            margin-left: auto;
        }

        .dock-links a {
            padding: 8px 18px;
            border-radius: var(--radius-dock);
            font-size: 15px;
            font-weight: 500;
            color: var(--text-secondary);
            transition: var(--transition);
            position: relative;
        }

        .dock-links a:hover {
            color: var(--primary);
        }

        .dock-links a::after {
            content: '';
            position: absolute;
            left: 22px;
            right: 22px;
            bottom: 3px;
            height: 2px;
            border-radius: 2px;
            background: var(--primary);
            opacity: 0;
            transform: scaleX(0.5);
            transition: var(--transition);
        }

        .dock-links a:hover::after,
        .dock-links a.active::after {
            opacity: 1;
            transform: scaleX(1);
        }

        .dock-links a.active {
            color: var(--primary);
            font-weight: 600;
        }

        .dock-actions {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .search-wrap {
            position: relative;
        }

        .search-btn {
            width: 38px;
            height: 38px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-secondary);
            transition: var(--transition);
        }

        .search-btn:hover {
            background: var(--primary-light);
            color: var(--primary);
        }

        .search-panel {
            position: absolute;
            right: 0;
            top: calc(100% + 10px);
            width: 300px;
            background: #fff;
            border-radius: 12px;
            box-shadow: var(--shadow-hover);
            padding: 10px;
            display: none;
            z-index: 30;
        }

        .search-panel.open {
            display: block;
        }

        .search-panel form {
            display: flex;
            gap: 8px;
        }

        .search-panel input {
            flex: 1;
            border: 1px solid var(--border);
            border-radius: 8px;
            padding: 9px 14px;
            font-size: 14px;
            outline: none;
            font-family: inherit;
            color: var(--text);
            background: var(--bg);
        }

        .search-panel input:focus {
            border-color: var(--primary);
            background: #fff;
            box-shadow: 0 0 0 3px rgba(27, 122, 140, 0.15);
        }

        .search-panel button {
            background: var(--primary);
            color: #fff;
            border: none;
            border-radius: 8px;
            padding: 9px 16px;
            font-size: 14px;
            font-weight: 600;
            transition: var(--transition);
        }

        .search-panel button:hover {
            background: var(--primary-hover);
        }

        /* ===== 分类 Hero ===== */
        .category-hero {
            padding: 72px 0 80px;
            background: linear-gradient(120deg, var(--bg) 0%, var(--primary-light) 100%);
            position: relative;
            overflow: hidden;
        }

        .category-hero::before {
            content: '';
            position: absolute;
            width: 420px;
            height: 420px;
            border-radius: 50%;
            background: rgba(27, 122, 140, 0.07);
            top: -160px;
            right: -80px;
        }

        .category-hero::after {
            content: '';
            position: absolute;
            width: 220px;
            height: 220px;
            border-radius: 50%;
            background: rgba(245, 158, 11, 0.08);
            bottom: -80px;
            left: -40px;
        }

        .category-hero-grid {
            display: grid;
            grid-template-columns: 55% 45%;
            gap: 56px;
            align-items: center;
            position: relative;
            z-index: 2;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(27, 122, 140, 0.10);
            color: var(--primary);
            padding: 6px 14px;
            border-radius: var(--radius-dock);
            font-size: 13px;
            font-weight: 600;
            margin-bottom: 18px;
        }

        .category-hero h1 {
            font-size: 38px;
            font-weight: 700;
            line-height: 1.2;
            margin-bottom: 18px;
            color: var(--text);
        }

        .hero-desc {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.8;
            max-width: 540px;
        }

        .hero-actions {
            display: flex;
            gap: 14px;
            margin-top: 30px;
            flex-wrap: wrap;
        }

        .hero-trust {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-top: 26px;
            font-size: 14px;
            color: var(--text-secondary);
        }

        .trust-stars {
            color: var(--accent);
            letter-spacing: 2px;
            font-size: 15px;
        }

        .hero-img-wrap {
            position: relative;
        }

        .hero-img-wrap img {
            width: 100%;
            height: 340px;
            object-fit: cover;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-float);
        }

        .hero-float-card {
            position: absolute;
            bottom: 16px;
            left: 16px;
            right: 16px;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
            border-radius: 12px;
            padding: 14px 18px;
            display: flex;
            gap: 14px;
            align-items: center;
            box-shadow: var(--shadow-card);
        }

        .hero-float-card .float-icon {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 17px;
            flex-shrink: 0;
            font-weight: 700;
        }

        .hero-float-card strong {
            font-size: 14px;
            display: block;
            line-height: 1.4;
        }

        .hero-float-card span {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.5;
        }

        /* ===== 区块通用 ===== */
        .section-head {
            margin-bottom: 40px;
        }

        .section-tag {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            background: var(--primary-light);
            padding: 5px 14px;
            border-radius: var(--radius-dock);
            margin-bottom: 14px;
        }

        .section-head h2 {
            font-size: 28px;
            font-weight: 700;
            position: relative;
            padding-left: 16px;
            line-height: 1.3;
        }

        .section-head h2::before {
            content: '';
            position: absolute;
            left: 0;
            top: 6px;
            bottom: 6px;
            width: 4px;
            border-radius: 4px;
            background: var(--primary);
        }

        .section-head p {
            color: var(--text-secondary);
            margin-top: 12px;
            max-width: 660px;
            font-size: 15px;
        }

        /* ===== 方向卡片 ===== */
        .subjects-section {
            padding: var(--spacing-section) 0;
            background: var(--card-bg);
        }

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

        .subject-card {
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 32px 28px;
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }

        .subject-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
            background: var(--card-bg);
        }

        .subject-icon {
            width: 52px;
            height: 52px;
            border-radius: 12px;
            background: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 20px;
        }

        .subject-card h3 {
            font-size: 19px;
            font-weight: 600;
            margin-bottom: 12px;
        }

        .subject-card p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 20px;
            flex: 1;
        }

        .subject-link {
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: var(--transition);
        }

        .subject-link:hover {
            gap: 12px;
        }

        /* ===== 流程 ===== */
        .process-section {
            padding: var(--spacing-section) 0;
            background: var(--bg-alt);
        }

        .process-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 32px;
            position: relative;
        }

        .process-grid::before {
            content: '';
            position: absolute;
            top: 46px;
            left: 18%;
            right: 18%;
            border-top: 2px dashed #C7D4DB;
            z-index: 0;
        }

        .process-step {
            position: relative;
            z-index: 1;
            background: var(--card-bg);
            border-radius: var(--radius);
            padding: 30px 28px;
            box-shadow: var(--shadow-card);
        }

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

        .step-num {
            font-size: 20px;
            font-weight: 700;
            color: var(--primary);
            background: var(--primary-light);
            width: 46px;
            height: 46px;
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }

        .step-icon {
            color: var(--accent);
            display: flex;
        }

        .process-step h3 {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 8px;
        }

        .process-step p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* ===== 特点/证据 ===== */
        .feature-section {
            padding: var(--spacing-section) 0;
            background: var(--card-bg);
        }

        .feature-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 64px;
            align-items: center;
        }

        .feature-content .section-head {
            margin-bottom: 28px;
        }

        .feature-list {
            display: flex;
            flex-direction: column;
            gap: 22px;
        }

        .feature-item {
            display: flex;
            gap: 16px;
        }

        .fi-icon {
            width: 42px;
            height: 42px;
            border-radius: 10px;
            background: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }

        .feature-item h4 {
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 4px;
        }

        .feature-item p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        .feature-img-wrap img {
            border-radius: var(--radius-lg);
            height: 380px;
            width: 100%;
            object-fit: cover;
            box-shadow: var(--shadow-hover);
        }

        /* ===== FAQ ===== */
        .faq-section {
            padding: var(--spacing-section) 0;
            background: var(--bg);
        }

        .faq-wrap {
            max-width: 820px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            margin-bottom: 14px;
            overflow: hidden;
            transition: var(--transition);
        }

        .faq-item:hover {
            border-color: var(--primary-light);
        }

        .faq-question {
            width: 100%;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            padding: 20px 24px;
            font-size: 16px;
            font-weight: 600;
            color: var(--text);
            transition: background 0.3s ease;
            text-align: left;
        }

        .faq-question:hover {
            background: var(--primary-light);
        }

        .faq-icon {
            width: 28px;
            height: 28px;
            border-radius: 8px;
            background: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            font-weight: 600;
            transition: all 0.3s ease;
            flex-shrink: 0;
            line-height: 1;
        }

        .faq-item.active .faq-icon {
            transform: rotate(45deg);
            background: var(--primary);
            color: #fff;
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease;
        }

        .faq-item.active .faq-answer {
            max-height: 500px;
        }

        .faq-answer-inner {
            padding: 16px 24px 20px;
            border-top: 1px solid var(--border);
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
        }

        /* ===== CTA ===== */
        .cta-section {
            padding: var(--spacing-section) 0;
            background: var(--primary-dark);
            position: relative;
        }

        .cta-section::before,
        .cta-section::after {
            content: '';
            display: block;
            height: 1px;
            background: rgba(227, 242, 245, 0.25);
            margin-bottom: 0;
        }

        .cta-inner {
            text-align: center;
            padding: 0 24px;
        }

        .cta-inner h2 {
            color: #fff;
            font-size: 30px;
            margin-bottom: 14px;
            line-height: 1.35;
        }

        .cta-inner .cta-desc {
            color: rgba(255, 255, 255, 0.72);
            max-width: 560px;
            margin: 0 auto 34px;
            font-size: 16px;
            line-height: 1.7;
        }

        /* ===== 返回入口 ===== */
        .return-section {
            padding: 80px 0 40px;
            background: var(--bg);
        }

        .return-card {
            display: flex;
            align-items: center;
            justify-content: space-between;
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 36px 40px;
            box-shadow: var(--shadow-card);
            gap: 24px;
        }

        .return-card h3 {
            font-size: 20px;
            font-weight: 600;
            margin-bottom: 6px;
        }

        .return-card p {
            color: var(--text-secondary);
            font-size: 14px;
        }

        .return-actions {
            display: flex;
            gap: 14px;
            flex-shrink: 0;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--card-bg);
            border-top: 1px solid var(--border);
            padding-top: 64px;
            margin-top: 40px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1.2fr 1.2fr;
            gap: 40px;
            padding-bottom: 48px;
        }

        .footer-brand .dock-logo {
            font-size: 18px;
        }

        .footer-brand p {
            font-size: 14px;
            color: var(--text-secondary);
            margin-top: 14px;
            max-width: 300px;
            line-height: 1.7;
        }

        .footer-col h4 {
            font-size: 15px;
            font-weight: 600;
            margin-bottom: 16px;
            color: var(--text);
        }

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

        .footer-col a {
            font-size: 14px;
            color: var(--text-secondary);
            transition: var(--transition);
        }

        .footer-col a:hover {
            color: var(--primary);
        }

        .contact-list li {
            font-size: 14px;
            color: var(--text-secondary);
        }

        .footer-bottom {
            border-top: 1px solid var(--border);
            padding: 20px 0;
            text-align: center;
            font-size: 13px;
            color: var(--text-muted);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1023px) {
            .category-hero-grid {
                grid-template-columns: 1fr;
                gap: 40px;
            }

            .hero-img-wrap img {
                height: 300px;
            }

            .subjects-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .feature-grid {
                grid-template-columns: 1fr;
                gap: 40px;
            }

            .feature-img-wrap img {
                height: 280px;
            }

            .process-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .process-grid::before {
                display: none;
            }

            .return-card {
                flex-direction: column;
                text-align: center;
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 767px) {
            :root {
                --spacing-section: 48px;
            }

            body {
                padding-bottom: 80px;
            }

            .site-header {
                top: auto;
                bottom: 16px;
                left: 0;
                right: 0;
                margin-top: 0;
                position: fixed;
                padding: 0 12px;
            }

            .dock-nav {
                max-width: 100%;
                padding: 8px 14px;
                gap: 10px;
                border-radius: var(--radius-dock);
                border: 1px solid var(--primary-light);
            }

            .dock-logo {
                gap: 6px;
                font-size: 15px;
            }

            .logo-mark {
                width: 30px;
                height: 30px;
                font-size: 15px;
                border-radius: 9px;
            }

            .dock-links {
                gap: 0;
                margin-left: auto;
            }

            .dock-links a {
                padding: 6px 9px;
                font-size: 13px;
                border-radius: var(--radius-dock);
            }

            .dock-links a::after {
                display: none;
            }

            .dock-actions .btn-sm {
                padding: 6px 10px;
                font-size: 12px;
                white-space: nowrap;
            }

            .search-btn {
                display: none;
            }

            .category-hero {
                padding: 48px 0 48px;
            }

            .category-hero h1 {
                font-size: 28px;
            }

            .hero-desc {
                font-size: 15px;
            }

            .hero-actions {
                flex-direction: column;
            }

            .hero-actions .btn,
            .hero-actions .btn-outline {
                width: 100%;
                text-align: center;
            }

            .hero-img-wrap img {
                height: 230px;
            }

            .hero-float-card {
                position: relative;
                bottom: auto;
                left: auto;
                right: auto;
                margin-top: -14px;
                box-shadow: var(--shadow-hover);
            }

            .subjects-grid {
                grid-template-columns: 1fr;
            }

            .process-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }

            .section-head h2 {
                font-size: 22px;
            }

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

            .btn-cta {
                width: 100%;
                text-align: center;
            }

            .return-card {
                padding: 28px 24px;
            }

            .return-actions {
                flex-direction: column;
                width: 100%;
            }

            .return-actions .btn {
                width: 100%;
                text-align: center;
            }

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

            .footer-bottom {
                padding-bottom: 30px;
            }
        }

        @media (max-width: 380px) {
            .dock-nav {
                padding: 8px 10px;
                gap: 6px;
            }

            .dock-links a {
                padding: 5px 6px;
                font-size: 12px;
            }

            .dock-actions .btn-sm {
                padding: 5px 8px;
                font-size: 11px;
            }

            .logo-text {
                font-size: 13px;
            }
        }