/* roulang page: index */
:root {
  --primary-600: #4B5E5D;
  --primary-500: #5F7473;
  --primary-700: #3A4A49;
  --accent-400: #C8A87C;
  --accent-100: #F3EAE0;
  --bg-50: #F7F5F1;
  --ink-900: #1F2928;
  --ink-600: #5A6766;
  --ink-400: #8E9A98;
  --line: #E5E0D8;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-full: 999px;
  --shadow-soft-sm: 0 2px 8px rgba(31, 41, 40, 0.05), 0 1px 2px rgba(31, 41, 40, 0.04);
  --shadow-soft-md: 0 12px 32px rgba(31, 41, 40, 0.07);
}
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
}
body {
  font-family: "PingFang SC", "HarmonyOS Sans SC", "Source Han Sans SC", "Noto Sans CJK SC", sans-serif;
  background-color: var(--bg-50);
  color: var(--ink-900);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img {
  max-width: 100%;
  display: block;
}
a {
  color: inherit;
  text-decoration: none;
}
a:hover, a:focus {
  outline: none;
}
button {
  font-family: inherit;
  cursor: pointer;
}
.container {
  width: 100%;
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 16px;
  padding-right: 16px;
}
@media (min-width: 640px) {
  .container {
    padding-left: 24px;
    padding-right: 24px;
  }
}
@media (min-width: 1024px) {
  .container {
    padding-left: 32px;
    padding-right: 32px;
  }
}
/* ===== Header ===== */
.site-header {
  position: fixed;
  top: 14px;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 0 16px;
  transition: all 0.3s ease;
}
.header-inner {
  max-width: 1200px;
  margin: 0 auto;
  background: rgba(255, 255, 255, 0.75);
  -webkit-backdrop-filter: blur(16px);
  backdrop-filter: blur(16px);
  border-radius: var(--radius-full);
  border: 1px solid var(--line);
  height: 56px;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  box-shadow: var(--shadow-soft-sm);
  transition: background 0.3s ease, box-shadow 0.3s ease;
}
.site-header.scrolled .header-inner {
  background: rgba(255, 255, 255, 0.92);
  box-shadow: var(--shadow-soft-md);
}
.logo {
  font-weight: 700;
  font-size: 18px;
  color: var(--ink-900);
  letter-spacing: -0.02em;
  display: flex;
  align-items: center;
  gap: 8px;
  white-space: nowrap;
}
.logo-dot {
  width: 28px;
  height: 28px;
  background: var(--primary-600);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 13px;
  font-weight: 700;
  flex-shrink: 0;
}
.nav-list {
  display: flex;
  align-items: center;
  gap: 28px;
  list-style: none;
}
.nav-link {
  font-weight: 500;
  font-size: 14px;
  color: var(--ink-600);
  position: relative;
  padding: 6px 2px;
  transition: color 0.2s ease;
  display: inline-block;
}
.nav-link::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0%;
  height: 1.5px;
  background: var(--primary-600);
  transition: width 0.3s ease;
  border-radius: 2px;
}
.nav-link:hover {
  color: var(--primary-600);
}
.nav-link:hover::after {
  width: 100%;
}
.nav-link.active {
  color: var(--primary-700);
  font-weight: 600;
}
.nav-link.active::after {
  width: 100%;
}
.nav-dropdown {
  position: relative;
}
.dropdown-panel {
  position: absolute;
  top: calc(100% + 12px);
  left: 50%;
  transform: translateX(-50%) translateY(8px);
  background: white;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 8px;
  min-width: 200px;
  opacity: 0;
  visibility: hidden;
  transition: all 0.25s ease;
  z-index: 50;
}
.nav-dropdown:hover .dropdown-panel {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}
.dropdown-panel a {
  display: block;
  padding: 10px 14px;
  font-size: 14px;
  color: var(--ink-600);
  border-radius: 10px;
  transition: background 0.2s ease, color 0.2s ease;
  font-weight: 500;
  white-space: nowrap;
}
.dropdown-panel a:hover {
  background: var(--accent-100);
  color: var(--primary-700);
}
.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 44px;
  padding: 0 24px;
  border-radius: var(--radius-sm);
  background: var(--primary-600);
  color: white;
  font-size: 14px;
  font-weight: 600;
  border: none;
  transition: background 0.2s ease, transform 0.2s ease;
  justify-content: center;
  line-height: 1;
}
.btn-primary:hover {
  background: var(--primary-500);
  transform: translateY(-1px);
}
.btn-primary:active {
  background: var(--primary-700);
  transform: translateY(0);
}
.btn-primary svg {
  transition: transform 0.2s ease;
}
.btn-primary:hover svg {
  transform: translateX(3px);
}
.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 44px;
  padding: 0 24px;
  border-radius: var(--radius-sm);
  background: transparent;
  border: 1px solid var(--primary-600);
  color: var(--primary-700);
  font-size: 14px;
  font-weight: 500;
  transition: background 0.2s ease, border-color 0.2s ease, color 0.2s ease;
  justify-content: center;
}
.btn-secondary:hover {
  background: var(--accent-100);
  border-color: var(--accent-400);
  color: var(--primary-700);
}
.btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 44px;
  padding: 0 24px;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.1);
  color: white;
  font-size: 14px;
  font-weight: 500;
  border: 1px solid rgba(255, 255, 255, 0.25);
  transition: background 0.2s ease, border-color 0.2s ease;
  justify-content: center;
}
.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.2);
  border-color: rgba(255, 255, 255, 0.35);
}
/* ===== Mobile menu ===== */
.mobile-menu-btn {
  display: none;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  border: none;
  background: transparent;
  color: var(--ink-900);
  align-items: center;
  justify-content: center;
}
.mobile-menu {
  display: none;
  position: fixed;
  top: 80px;
  left: 16px;
  right: 16px;
  background: rgba(255, 255, 255, 0.98);
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  padding: 16px;
  z-index: 99;
  box-shadow: var(--shadow-soft-md);
  max-height: 80vh;
  overflow-y: auto;
}
.mobile-menu.open {
  display: block;
}
.mobile-menu a {
  display: block;
  padding: 14px 16px;
  font-size: 15px;
  font-weight: 500;
  color: var(--ink-900);
  border-radius: var(--radius-sm);
  border-bottom: 1px solid var(--line);
}
.mobile-menu a:last-child {
  border-bottom: none;
}
.mobile-menu a:hover {
  background: var(--accent-100);
}
.mobile-menu a.active {
  background: var(--accent-100);
  color: var(--primary-700);
  font-weight: 600;
}
.mobile-menu .dropdown-group {
  padding: 8px 0;
}
.mobile-menu .dropdown-group .dropdown-title {
  padding: 10px 16px;
  font-size: 14px;
  font-weight: 600;
  color: var(--ink-600);
}
.mobile-menu .dropdown-group a {
  padding-left: 36px;
  border-bottom: 1px solid rgba(229, 224, 216, 0.6);
  font-size: 14px;
  color: var(--ink-600);
}
.mobile-menu .dropdown-group a:last-child {
  border-bottom: none;
}
@media (max-width: 1023px) {
  .nav-list {
    display: none;
  }
  .header-actions .btn-primary {
    display: none;
  }
  .mobile-menu-btn {
    display: flex;
  }
}
/* ===== Hero ===== */
.hero-section {
  position: relative;
  padding: 140px 0 80px;
  background: var(--bg-50);
  overflow: hidden;
}
.hero-bg-decor {
  position: absolute;
  top: -120px;
  right: -80px;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  border: 1px solid rgba(75, 94, 93, 0.08);
  pointer-events: none;
}
.hero-bg-decor::before,
.hero-bg-decor::after {
  content: '';
  position: absolute;
  border-radius: 50%;
  border: 1px solid rgba(75, 94, 93, 0.06);
}
.hero-bg-decor::before {
  inset: 60px;
}
.hero-bg-decor::after {
  inset: 140px;
}
.hero-grid {
  display: grid;
  grid-template-columns: 45% 55%;
  gap: 48px;
  align-items: center;
  position: relative;
  z-index: 1;
}
.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 500;
  color: var(--primary-600);
  background: rgba(75, 94, 93, 0.08);
  border-radius: var(--radius-full);
  padding: 6px 16px;
  margin-bottom: 24px;
  letter-spacing: 0.02em;
}
.hero-eyebrow::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent-400);
  flex-shrink: 0;
}
.hero h1 {
  font-size: 3rem;
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--ink-900);
  margin-bottom: 20px;
}
.hero h1 span {
  color: var(--primary-600);
}
.hero-sub {
  font-size: 1rem;
  line-height: 1.8;
  color: var(--ink-600);
  margin-bottom: 32px;
  max-width: 440px;
}
.hero-ctas {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 36px;
}
.hero-trust {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 13px;
  color: var(--ink-400);
  flex-wrap: wrap;
}
.hero-trust span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.hero-trust span::before {
  content: '';
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: var(--accent-400);
}
.hero-trust span:first-child::before {
  display: none;
}
/* Phone mockup */
.phone-mockup-wrap {
  position: relative;
  display: flex;
  justify-content: flex-end;
  align-items: center;
  padding-right: 40px;
}
.phone-mockup {
  position: relative;
  width: 300px;
  height: 560px;
  background: #fff;
  border-radius: 40px;
  border: 8px solid rgba(31, 41, 40, 0.15);
  box-shadow: var(--shadow-soft-md);
  overflow: hidden;
  z-index: 2;
}
.phone-screen {
  width: 100%;
  height: 100%;
  border-radius: 32px;
  overflow: hidden;
  background: var(--bg-50);
  display: flex;
  flex-direction: column;
}
.phone-notch {
  height: 28px;
  background: rgba(31, 41, 40, 0.9);
  border-radius: 0 0 20px 20px;
  margin: 0 auto;
  width: 120px;
  flex-shrink: 0;
}
.phone-content {
  flex: 1;
  padding: 16px;
  overflow: hidden;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}
.phone-card {
  background: white;
  border-radius: 14px;
  overflow: hidden;
  border: 1px solid var(--line);
}
.phone-card img {
  width: 100%;
  height: 90px;
  object-fit: cover;
}
.phone-card-small {
  grid-column: span 1;
}
.phone-card-tall {
  grid-row: span 2;
}
.phone-card-tall img {
  height: 200px;
}
.phone-card-text {
  padding: 8px;
  font-size: 10px;
  font-weight: 500;
  color: var(--ink-600);
  text-align: center;
}
.mockup-card-float {
  position: absolute;
  background: white;
  border-radius: 14px;
  border: 1px solid var(--line);
  box-shadow: var(--shadow-soft-md);
  padding: 12px 16px;
  display: flex;
  align-items: center;
  gap: 10px;
  z-index: 3;
  font-size: 13px;
  font-weight: 500;
  color: var(--ink-900);
}
.mockup-float-1 {
  top: 10%;
  left: 0;
  animation: floatSubtle 3s ease-in-out infinite;
}
.mockup-float-2 {
  bottom: 12%;
  right: 0;
  animation: floatSubtle 3.5s ease-in-out 0.5s infinite;
}
@keyframes floatSubtle {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-6px); }
}
@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .phone-mockup-wrap {
    justify-content: center;
    padding-right: 0;
    margin-top: 20px;
  }
  .hero h1 {
    font-size: 2.4rem;
  }
}
@media (max-width: 640px) {
  .hero-section {
    padding: 120px 0 56px;
  }
  .hero h1 {
    font-size: 1.9rem;
  }
  .hero-sub {
    font-size: 0.95rem;
  }
  .hero-ctas {
    flex-direction: column;
  }
  .hero-ctas .btn-primary,
  .hero-ctas .btn-secondary {
    width: 100%;
  }
  .phone-mockup {
    width: 240px;
    height: 460px;
    border-radius: 32px;
  }
  .phone-card img {
    height: 70px;
  }
  .phone-card-tall img {
    height: 160px;
  }
}
/* ===== Section common ===== */
.section-block {
  padding: 72px 0;
}
@media (max-width: 640px) {
  .section-block {
    padding: 48px 0;
  }
}
.section-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 24px;
  margin-bottom: 40px;
}
.section-eyebrow {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  color: var(--accent-600);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  background: var(--accent-100);
  padding: 5px 14px;
  border-radius: var(--radius-full);
  margin-bottom: 12px;
}
.section-head h2 {
  font-size: 2rem;
  font-weight: 600;
  line-height: 1.3;
  color: var(--ink-900);
  letter-spacing: -0.01em;
}
.section-head p {
  color: var(--ink-600);
  font-size: 15px;
  line-height: 1.7;
}
.section-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 500;
  color: var(--primary-600);
  white-space: nowrap;
  transition: color 0.2s ease;
}
.section-link:hover {
  color: var(--primary-700);
}
.section-link svg {
  transition: transform 0.2s ease;
}
.section-link:hover svg {
  transform: translateX(3px);
}
@media (max-width: 640px) {
  .section-head {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
    margin-bottom: 28px;
  }
  .section-head h2 {
    font-size: 1.4rem;
  }
}
/* ===== Feature cards ===== */
.feature-section {
  background: var(--bg-50);
}
.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.feature-card {
  background: white;
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  padding: 24px;
  position: relative;
  box-shadow: var(--shadow-soft-sm);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  overflow: hidden;
}
.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-soft-md);
}
.feature-card-cover {
  width: 100%;
  aspect-ratio: 16/10;
  border-radius: var(--radius-md);
  overflow: hidden;
  margin-bottom: 20px;
  background: #E8ECEC;
  position: relative;
}
.feature-card-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}
.feature-card:hover .feature-card-cover img {
  transform: scale(1.04);
}
.feature-card-tags {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
}
.badge {
  display: inline-flex;
  align-items: center;
  height: 22px;
  padding: 0 10px;
  font-size: 12px;
  font-weight: 500;
  border-radius: var(--radius-full);
  background: var(--accent-100);
  color: var(--accent-600);
  line-height: 1;
}
.badge-primary {
  background: rgba(75, 94, 93, 0.1);
  color: var(--primary-700);
}
.badge-time {
  font-size: 12px;
  color: var(--ink-400);
  font-weight: 400;
  font-family: Inter, ui-sans-serif, system-ui;
}
.feature-card h3 {
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--ink-900);
  margin-bottom: 8px;
  line-height: 1.4;
}
.feature-card p {
  font-size: 14px;
  color: var(--ink-600);
  line-height: 1.7;
}
.feature-card-user {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
}
.feature-card-user .avatar {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--primary-100);
  color: var(--primary-700);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 600;
}
.feature-card-user .username {
  font-size: 13px;
  font-weight: 500;
  color: var(--ink-900);
}
.feature-card-user .time {
  font-size: 12px;
  color: var(--ink-400);
}
@media (max-width: 1024px) {
  .feature-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (max-width: 640px) {
  .feature-grid {
    grid-template-columns: 1fr;
  }
}
/* ===== Checklist section ===== */
.checklist-section {
  background: white;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.checklist-layout {
  display: grid;
  grid-template-columns: 38% 62%;
  gap: 56px;
  align-items: start;
}
.checklist-intro h2 {
  font-size: 2rem;
  font-weight: 600;
  margin-bottom: 16px;
  line-height: 1.3;
}
.checklist-intro > p {
  color: var(--ink-600);
  font-size: 15px;
  line-height: 1.8;
  margin-bottom: 36px;
}
.checklist-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}
.stat-item {
  background: var(--bg-50);
  border-radius: var(--radius-md);
  padding: 20px;
  border: 1px solid var(--line);
}
.stat-number {
  font-family: Inter, ui-sans-serif, system-ui;
  font-size: 2.2rem;
  font-weight: 600;
  color: var(--primary-600);
  line-height: 1.1;
  letter-spacing: -0.02em;
}
.stat-label {
  font-size: 13px;
  color: var(--ink-600);
  margin-top: 4px;
}
.checklist-list {
  display: flex;
  flex-direction: column;
}
.checklist-item {
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 24px 16px;
  border-bottom: 1px solid var(--line);
  transition: background 0.2s ease;
  border-radius: var(--radius-md);
}
.checklist-item:last-child {
  border-bottom: none;
}
.checklist-item:hover {
  background: var(--accent-100);
}
.checklist-num {
  font-family: Inter, ui-sans-serif, system-ui;
  font-size: 1.4rem;
  font-weight: 600;
  color: var(--accent-400);
  min-width: 56px;
  letter-spacing: -0.02em;
}
.checklist-item h4 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--ink-900);
  flex-shrink: 0;
  min-width: 120px;
}
.checklist-item p {
  flex: 1;
  font-size: 14px;
  color: var(--ink-600);
  line-height: 1.6;
}
.checklist-arrow {
  color: var(--ink-400);
  transition: transform 0.2s ease, color 0.2s ease;
  flex-shrink: 0;
}
.checklist-item:hover .checklist-arrow {
  transform: translateX(4px);
  color: var(--accent-400);
}
@media (max-width: 1024px) {
  .checklist-layout {
    grid-template-columns: 1fr;
    gap: 40px;
  }
}
@media (max-width: 640px) {
  .checklist-item {
    padding: 20px 12px;
    gap: 12px;
    flex-wrap: wrap;
  }
  .checklist-num {
    min-width: 40px;
    font-size: 1.1rem;
  }
  .checklist-item h4 {
    min-width: 0;
    flex: 1;
  }
  .checklist-item p {
    flex-basis: 100%;
    padding-left: 52px;
    font-size: 13px;
  }
}
/* ===== Testimonials ===== */
.testimonial-section {
  background: var(--bg-50);
}
.testimonial-scroll {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.testimonial-card {
  background: white;
  border-radius: var(--radius-md);
  border: 1px solid var(--line);
  padding: 28px;
  box-shadow: var(--shadow-soft-sm);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.testimonial-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-soft-md);
}
.testimonial-stars {
  display: flex;
  gap: 4px;
  margin-bottom: 16px;
  color: var(--accent-400);
}
.testimonial-card blockquote {
  font-size: 14px;
  line-height: 1.8;
  color: var(--ink-600);
  margin-bottom: 20px;
  font-style: normal;
}
.testimonial-user {
  display: flex;
  align-items: center;
  gap: 12px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
}
.testimonial-user .avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--primary-100);
  color: var(--primary-700);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 15px;
  font-weight: 600;
  flex-shrink: 0;
}
.testimonial-user .name {
  font-size: 14px;
  font-weight: 600;
  color: var(--ink-900);
}
.testimonial-user .role {
  font-size: 12px;
  color: var(--ink-400);
  margin-top: 2px;
}
.testimonial-scroll-wrapper {
  overflow-x: auto;
  scrollbar-width: thin;
  scrollbar-color: var(--primary-100) transparent;
  padding-bottom: 12px;
  scroll-snap-type: x mandatory;
}
.testimonial-scroll-wrapper::-webkit-scrollbar {
  height: 4px;
}
.testimonial-scroll-wrapper::-webkit-scrollbar-track {
  background: transparent;
}
.testimonial-scroll-wrapper::-webkit-scrollbar-thumb {
  background: var(--primary-100);
  border-radius: 4px;
}
.testimonial-scroll.flex-scroll {
  display: flex;
  gap: 24px;
  min-width: 0;
}
.testimonial-scroll.flex-scroll .testimonial-card {
  flex: 0 0 calc((100% - 48px) / 3);
  scroll-snap-align: start;
}
@media (max-width: 1024px) {
  .testimonial-scroll.flex-scroll .testimonial-card {
    flex: 0 0 calc((100% - 24px) / 2);
  }
}
@media (max-width: 640px) {
  .testimonial-scroll.flex-scroll .testimonial-card {
    flex: 0 0 85%;
  }
}
/* ===== CTA section ===== */
.cta-section {
  padding: 72px 0;
}
.cta-box {
  background: radial-gradient(circle at 30% 30%, var(--primary-600), var(--primary-700));
  border-radius: var(--radius-lg);
  padding: 64px 48px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.cta-box::before,
.cta-box::after {
  content: '';
  position: absolute;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.08);
  pointer-events: none;
}
.cta-box::before {
  width: 300px;
  height: 300px;
  top: -120px;
  right: -100px;
}
.cta-box::after {
  width: 200px;
  height: 200px;
  bottom: -80px;
  left: -60px;
}
.cta-box h2 {
  font-size: 2rem;
  font-weight: 600;
  color: white;
  margin-bottom: 16px;
  position: relative;
  z-index: 1;
  letter-spacing: -0.01em;
  line-height: 1.3;
}
.cta-box p {
  font-size: 15px;
  color: rgba(255, 255, 255, 0.8);
  margin-bottom: 32px;
  max-width: 480px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.7;
  position: relative;
  z-index: 1;
}
.cta-box .btn-white {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 46px;
  padding: 0 32px;
  border-radius: var(--radius-sm);
  background: white;
  color: var(--primary-700);
  font-size: 15px;
  font-weight: 600;
  border: none;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  position: relative;
  z-index: 1;
}
.cta-box .btn-white:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
}
.cta-box .cta-terms {
  font-size: 12px;
  color: rgba(255, 255, 255, 0.5);
  margin-top: 20px;
  margin-bottom: 0;
  position: relative;
  z-index: 1;
}
@media (max-width: 640px) {
  .cta-box {
    padding: 48px 24px;
  }
  .cta-box h2 {
    font-size: 1.5rem;
  }
  .cta-box .btn-white {
    width: 100%;
    justify-content: center;
  }
}
/* ===== News list ===== */
.news-section {
  background: var(--bg-50);
}
.news-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}
.news-card {
  display: flex;
  background: white;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  box-shadow: var(--shadow-soft-sm);
  cursor: pointer;
}
.news-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-soft-md);
}
.news-thumb {
  width: 160px;
  flex-shrink: 0;
  position: relative;
  overflow: hidden;
  border-radius: 0;
}
.news-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}
.news-card:hover .news-thumb img {
  transform: scale(1.04);
}
.news-content {
  flex: 1;
  padding: 16px 20px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-width: 0;
}
.news-content .badge {
  align-self: flex-start;
}
.news-content h3 {
  font-size: 15px;
  font-weight: 600;
  color: var(--ink-900);
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.news-content .news-excerpt {
  font-size: 13px;
  color: var(--ink-600);
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 1;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.news-meta {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 12px;
  color: var(--ink-400);
  margin-top: auto;
  font-family: Inter, ui-sans-serif, system-ui;
}
.empty-state {
  grid-column: 1 / -1;
  background: white;
  border-radius: var(--radius-md);
  border: 1px solid var(--line);
  padding: 48px 24px;
  text-align: center;
  color: var(--ink-400);
}
.empty-icon {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--bg-50);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 12px;
  font-size: 18px;
}
.empty-state p {
  font-size: 14px;
}
@media (max-width: 1024px) {
  .news-list {
    grid-template-columns: 1fr;
  }
}
@media (max-width: 640px) {
  .news-thumb {
    width: 88px;
  }
  .news-content {
    padding: 12px 14px;
  }
  .news-content .news-excerpt {
    display: none;
  }
  .news-content h3 {
    font-size: 14px;
  }
  .news-meta {
    font-size: 11px;
    gap: 10px;
  }
}
/* ===== FAQ ===== */
.faq-section {
  background: white;
}
.faq-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}
.faq-card {
  background: var(--bg-50);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 24px;
  cursor: pointer;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}
.faq-card:hover {
  border-color: var(--accent-400);
  box-shadow: var(--shadow-soft-sm);
}
.faq-card summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  font-weight: 500;
  font-size: 15px;
  color: var(--ink-900);
  cursor: pointer;
  list-style: none;
  line-height: 1.5;
}
.faq-card summary::-webkit-details-marker {
  display: none;
}
.faq-icon {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--accent-100);
  color: var(--accent-600);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: transform 0.3s ease;
  font-size: 14px;
  font-weight: 500;
}
.faq-card[open] .faq-icon {
  transform: rotate(45deg);
}
.faq-card p {
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
  font-size: 14px;
  color: var(--ink-600);
  line-height: 1.8;
}
@media (max-width: 768px) {
  .faq-grid {
    grid-template-columns: 1fr;
  }
}
/* ===== Mini CTA ===== */
.mini-cta-section {
  padding: 48px 0 72px;
  background: var(--bg-50);
}
.mini-cta-inner {
  background: linear-gradient(135deg, var(--primary-600), var(--primary-700));
  border-radius: var(--radius-lg);
  padding: 40px 48px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  flex-wrap: wrap;
}
.mini-cta-inner h3 {
  color: white;
  font-size: 1.4rem;
  font-weight: 600;
  margin-bottom: 6px;
}
.mini-cta-inner p {
  color: rgba(255, 255, 255, 0.75);
  font-size: 14px;
  line-height: 1.6;
}
@media (max-width: 640px) {
  .mini-cta-inner {
    flex-direction: column;
    text-align: center;
    padding: 36px 24px;
  }
  .mini-cta-inner .btn-ghost {
    width: 100%;
  }
}
/* ===== Footer ===== */
.site-footer {
  background: var(--ink-900);
  color: rgba(255, 255, 255, 0.7);
  padding: 64px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}
.footer-brand h4 {
  color: white;
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 16px;
  letter-spacing: -0.02em;
}
.footer-brand p {
  font-size: 14px;
  line-height: 1.8;
  max-width: 300px;
}
.footer-col h5 {
  color: white;
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 16px;
  letter-spacing: 0.02em;
}
.footer-col a {
  display: block;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.5);
  line-height: 2.2;
  transition: color 0.2s ease;
}
.footer-col a:hover {
  color: var(--accent-400);
}
.footer-copyright {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 24px 0;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.4);
  flex-wrap: wrap;
}
.footer-copyright a {
  color: rgba(255, 255, 255, 0.4);
  transition: color 0.2s ease;
}
.footer-copyright a:hover {
  color: var(--accent-400);
}
@media (max-width: 1024px) {
  .footer-grid {
    grid-template-columns: 2fr 1fr;
    gap: 32px;
  }
}
@media (max-width: 640px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 28px;
    padding-bottom: 32px;
  }
  .footer-brand {
    grid-column: 1 / -1;
  }
  .footer-copyright {
    flex-direction: column;
    text-align: center;
    padding: 20px 0;
  }
}
/* ===== Scroll reveal ===== */
.reveal {
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 0.5s cubic-bezier(0.22, 1, 0.36, 1), transform 0.5s cubic-bezier(0.22, 1, 0.36, 1);
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}
/* ===== Focus states ===== */
a:focus-visible,
button:focus-visible,
summary:focus-visible {
  outline: 3px solid rgba(79, 98, 94, 0.35);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

/* roulang page: category1 */
:root {
      --primary-600: #4B5E5D;
      --primary-500: #5F7473;
      --primary-700: #3A4A49;
      --accent-400: #C8A87C;
      --accent-100: #F3EAE0;
      --accent-700: #8C6D4A;
      --bg-50: #F7F5F1;
      --ink-900: #1F2928;
      --ink-600: #5A6766;
      --ink-400: #8E9A98;
      --line: #E5E0D8;
      --radius-sm: 8px;
      --radius-md: 14px;
      --radius-lg: 20px;
      --shadow-soft-sm: 0 2px 8px rgba(31, 41, 40, 0.05), 0 1px 2px rgba(31, 41, 40, 0.04);
      --shadow-soft-md: 0 12px 32px rgba(31, 41, 40, 0.07);
      --shadow-soft-lg: 0 18px 48px rgba(31, 41, 40, 0.10);
    }

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

    html {
      scroll-behavior: smooth;
    }

    body {
      font-family: "PingFang SC", "HarmonyOS Sans SC", "Source Han Sans SC", "Noto Sans CJK SC", "Microsoft YaHei", sans-serif;
      background: var(--bg-50);
      color: var(--ink-900);
      line-height: 1.7;
      -webkit-font-smoothing: antialiased;
    }

    .container {
      max-width: 1200px;
      margin: 0 auto;
      padding-left: 1rem;
      padding-right: 1rem;
    }

    @media (min-width: 640px) {
      .container { padding-left: 1.5rem; padding-right: 1.5rem; }
    }

    @media (min-width: 1024px) {
      .container { padding-left: 2rem; padding-right: 2rem; }
    }

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

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

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

    /* ===== 悬浮胶囊导航 ===== */
    .nav-shell {
      position: fixed;
      top: 14px;
      left: 50%;
      transform: translateX(-50%);
      z-index: 1000;
      width: calc(100% - 32px);
      max-width: 1200px;
      background: rgba(255, 255, 255, 0.75);
      backdrop-filter: blur(16px);
      -webkit-backdrop-filter: blur(16px);
      border-radius: 999px;
      border: 1px solid var(--line);
      box-shadow: var(--shadow-soft-sm);
      transition: background 0.3s ease, box-shadow 0.3s ease;
    }

    .nav-shell.scrolled {
      background: rgba(255, 255, 255, 0.92);
      box-shadow: var(--shadow-soft-md);
    }

    .nav-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 6px 8px 6px 20px;
      gap: 0.5rem;
    }

    .nav-brand {
      font-size: 1.05rem;
      font-weight: 700;
      color: var(--ink-900);
      white-space: nowrap;
      letter-spacing: 0.01em;
      display: flex;
      align-items: center;
      gap: 6px;
    }

    .nav-brand i {
      color: var(--accent-400);
      font-size: 1.1rem;
    }

    .nav-list {
      display: flex;
      align-items: center;
      gap: 0.25rem;
      margin: 0 auto;
    }

    .nav-list .nav-link {
      font-size: 0.9rem;
      font-weight: 500;
      color: var(--ink-600);
      padding: 8px 12px;
      border-radius: 999px;
      position: relative;
      transition: color 0.3s ease;
      white-space: nowrap;
    }

    .nav-list .nav-link:hover {
      color: var(--primary-600);
    }

    .nav-list .nav-link.active {
      color: var(--primary-700);
      font-weight: 600;
    }

    .nav-list .nav-link.active::after {
      content: '';
      position: absolute;
      bottom: 4px;
      left: 12px;
      right: 12px;
      height: 1.5px;
      background: var(--accent-400);
      border-radius: 2px;
    }

    .nav-dropdown {
      position: relative;
    }

    .dropdown-panel {
      position: absolute;
      top: calc(100% + 10px);
      left: 50%;
      transform: translateX(-50%);
      background: #fff;
      border: 1px solid var(--line);
      border-radius: var(--radius-md);
      padding: 0.5rem;
      min-width: 190px;
      opacity: 0;
      visibility: hidden;
      transition: opacity 0.3s ease, visibility 0.3s ease, transform 0.3s ease;
      box-shadow: var(--shadow-soft-sm);
      display: flex;
      flex-direction: column;
    }

    .nav-dropdown:hover .dropdown-panel {
      opacity: 1;
      visibility: visible;
      transform: translateX(-50%) translateY(4px);
    }

    .dropdown-panel a {
      font-size: 0.88rem;
      color: var(--ink-600);
      padding: 10px 14px;
      border-radius: 8px;
      transition: background 0.2s ease, color 0.2s ease;
    }

    .dropdown-panel a:hover {
      background: var(--accent-100);
      color: var(--primary-700);
    }

    .dropdown-panel a.active {
      background: var(--accent-100);
      color: var(--primary-700);
      font-weight: 600;
    }

    .nav-actions {
      display: flex;
      align-items: center;
      gap: 10px;
    }

    .nav-cta {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      background: var(--primary-600);
      color: #fff;
      font-size: 0.85rem;
      font-weight: 500;
      padding: 8px 18px;
      border-radius: 999px;
      transition: background 0.2s ease, transform 0.2s ease;
      white-space: nowrap;
    }

    .nav-cta:hover {
      background: var(--primary-500);
      transform: translateY(-1px);
    }

    .nav-toggle {
      display: none;
      width: 40px;
      height: 40px;
      border-radius: 50%;
      align-items: center;
      justify-content: center;
      color: var(--ink-900);
      font-size: 1.2rem;
      transition: background 0.2s ease;
    }

    .nav-toggle:hover {
      background: var(--accent-100);
    }

    .mobile-menu {
      display: none;
      flex-direction: column;
      background: rgba(255, 255, 255, 0.98);
      border-radius: 16px;
      padding: 1rem;
      margin: 0.5rem 0.75rem 0.75rem;
      box-shadow: var(--shadow-soft-md);
      border: 1px solid var(--line);
    }

    .mobile-menu.open {
      display: flex;
    }

    .mobile-menu a {
      font-size: 0.95rem;
      font-weight: 500;
      color: var(--ink-600);
      padding: 14px 12px;
      border-radius: 10px;
      transition: background 0.2s ease, color 0.2s ease;
    }

    .mobile-menu a:hover {
      background: var(--accent-100);
      color: var(--primary-700);
    }

    .mobile-menu a.active {
      color: var(--primary-700);
      font-weight: 600;
      background: var(--accent-100);
    }

    .mobile-menu .mobile-sub-label {
      font-size: 0.8rem;
      color: var(--ink-400);
      padding: 10px 12px 4px;
      font-weight: 600;
      letter-spacing: 0.03em;
    }

    @media (max-width: 768px) {
      .nav-list {
        display: none;
      }
      .nav-cta {
        display: none;
      }
      .nav-toggle {
        display: flex;
      }
      .nav-inner {
        padding-left: 16px;
      }
    }

    /* ===== Hero ===== */
    .hero {
      position: relative;
      background: var(--bg-50);
      padding: 150px 0 70px;
      overflow: hidden;
    }

    .hero::before {
      content: '';
      position: absolute;
      top: -80px;
      right: -100px;
      width: 480px;
      height: 480px;
      background: radial-gradient(circle, rgba(75, 94, 93, 0.08) 0%, transparent 70%);
      border-radius: 50%;
      pointer-events: none;
    }

    .hero::after {
      content: '';
      position: absolute;
      top: 120px;
      right: 180px;
      width: 200px;
      height: 200px;
      border: 1px solid rgba(200, 168, 124, 0.15);
      border-radius: 50%;
      pointer-events: none;
    }

    .hero-content {
      position: relative;
      z-index: 2;
      text-align: center;
      max-width: 760px;
      margin: 0 auto;
    }

    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      background: var(--accent-100);
      color: var(--accent-700);
      font-size: 0.82rem;
      font-weight: 500;
      padding: 6px 16px;
      border-radius: 999px;
      margin-bottom: 24px;
    }

    .hero h1 {
      font-size: 2.5rem;
      font-weight: 700;
      line-height: 1.15;
      letter-spacing: -0.02em;
      margin-bottom: 18px;
      color: var(--ink-900);
    }

    .hero p {
      font-size: 1rem;
      color: var(--ink-600);
      line-height: 1.8;
      margin-bottom: 32px;
      max-width: 640px;
      margin-left: auto;
      margin-right: auto;
    }

    .hero-actions {
      display: flex;
      justify-content: center;
      gap: 14px;
      flex-wrap: wrap;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      font-size: 0.92rem;
      font-weight: 500;
      min-height: 44px;
      padding: 0 24px;
      border-radius: var(--radius-sm);
      transition: all 0.2s ease-out;
    }

    .btn-primary {
      background: var(--primary-600);
      color: #fff;
      border: 1px solid var(--primary-600);
    }

    .btn-primary:hover {
      background: var(--primary-500);
      border-color: var(--primary-500);
      transform: translateY(-2px);
      box-shadow: var(--shadow-soft-md);
    }

    .btn-primary i {
      font-size: 0.85rem;
      transition: transform 0.2s ease;
    }

    .btn-primary:hover i {
      transform: translateX(3px);
    }

    .btn-outline {
      background: transparent;
      border: 1px solid var(--primary-600);
      color: var(--primary-700);
    }

    .btn-outline:hover {
      border-color: var(--accent-400);
      color: var(--accent-700);
      background: var(--accent-100);
    }

    .hero-metrics {
      display: flex;
      justify-content: center;
      gap: 32px;
      margin-top: 42px;
      flex-wrap: wrap;
    }

    .hero-metrics .metric {
      text-align: center;
      padding: 0 8px;
    }

    .hero-metrics .metric-num {
      font-family: "Inter", ui-sans-serif, system-ui;
      font-size: 1.5rem;
      font-weight: 600;
      color: var(--ink-900);
      line-height: 1.2;
    }

    .hero-metrics .metric-num span {
      color: var(--accent-400);
    }

    .hero-metrics .metric-label {
      font-size: 0.82rem;
      color: var(--ink-400);
      margin-top: 4px;
    }

    /* ===== Section ===== */
    .section {
      padding-top: 4.5rem;
      padding-bottom: 4.5rem;
    }

    @media (min-width: 1024px) {
      .section {
        padding-top: 5.5rem;
        padding-bottom: 5.5rem;
      }
    }

    .section-head {
      text-align: center;
      margin-bottom: 42px;
    }

    .section-tag {
      display: inline-block;
      background: var(--accent-100);
      color: var(--accent-700);
      font-size: 0.8rem;
      font-weight: 500;
      padding: 4px 14px;
      border-radius: 999px;
      margin-bottom: 14px;
      letter-spacing: 0.04em;
    }

    .section-head h2 {
      font-size: 1.4rem;
      font-weight: 600;
      color: var(--ink-900);
      line-height: 1.3;
      margin-bottom: 12px;
    }

    .section-head p {
      font-size: 0.95rem;
      color: var(--ink-600);
      max-width: 560px;
      margin: 0 auto;
    }

    @media (min-width: 1024px) {
      .section-head h2 {
        font-size: 2rem;
      }
    }

    /* ===== 核心要点卡片 ===== */
    .feature-card {
      background: #fff;
      border: 1px solid var(--line);
      border-radius: var(--radius-lg);
      padding: 32px 26px;
      transition: transform 0.25s ease-out, box-shadow 0.25s ease-out;
      position: relative;
      overflow: hidden;
    }

    .feature-card::before {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      height: 3px;
      background: linear-gradient(90deg, var(--accent-400), transparent 70%);
      opacity: 0;
      transition: opacity 0.3s ease;
    }

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

    .feature-card:hover::before {
      opacity: 1;
    }

    .feature-icon {
      width: 52px;
      height: 52px;
      border-radius: var(--radius-md);
      background: var(--accent-100);
      color: var(--primary-600);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.3rem;
      margin-bottom: 20px;
    }

    .feature-card h3 {
      font-size: 1.1rem;
      font-weight: 600;
      margin-bottom: 10px;
      color: var(--ink-900);
    }

    .feature-card p {
      font-size: 0.92rem;
      color: var(--ink-600);
      line-height: 1.75;
    }

    /* ===== 登录流程 ===== */
    .steps-grid {
      display: grid;
      grid-template-columns: 1fr;
      gap: 20px;
    }

    @media (min-width: 640px) {
      .steps-grid {
        grid-template-columns: repeat(2, 1fr);
      }
    }

    @media (min-width: 1024px) {
      .steps-grid {
        grid-template-columns: repeat(4, 1fr);
      }
    }

    .step-item {
      background: #fff;
      border: 1px solid var(--line);
      border-radius: var(--radius-md);
      padding: 28px 22px;
      text-align: center;
      position: relative;
      transition: box-shadow 0.25s ease, transform 0.25s ease;
    }

    .step-item:hover {
      box-shadow: var(--shadow-soft-md);
      transform: translateY(-2px);
    }

    .step-num {
      font-family: "Inter", ui-sans-serif, system-ui;
      font-size: 2rem;
      font-weight: 600;
      color: var(--accent-400);
      line-height: 1;
      margin-bottom: 12px;
      display: block;
    }

    .step-item h3 {
      font-size: 1rem;
      font-weight: 600;
      color: var(--ink-900);
      margin-bottom: 8px;
    }

    .step-item p {
      font-size: 0.85rem;
      color: var(--ink-600);
      line-height: 1.6;
    }

    .step-arrow {
      position: absolute;
      top: 50%;
      right: -18px;
      transform: translateY(-50%);
      color: var(--accent-400);
      font-size: 0.9rem;
      z-index: 2;
    }

    @media (max-width: 1023px) {
      .step-arrow {
        display: none;
      }
    }

    /* ===== 适用场景 ===== */
    .scenario-image {
      border-radius: var(--radius-lg);
      overflow: hidden;
      position: relative;
      box-shadow: var(--shadow-soft-md);
    }

    .scenario-image img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      min-height: 280px;
    }

    .scenario-list {
      display: flex;
      flex-direction: column;
      gap: 6px;
    }

    .scenario-item {
      display: flex;
      align-items: flex-start;
      gap: 14px;
      background: #fff;
      border: 1px solid var(--line);
      border-radius: var(--radius-md);
      padding: 18px 20px;
      transition: background 0.2s ease, transform 0.2s ease;
    }

    .scenario-item:hover {
      background: var(--accent-100);
      transform: translateX(4px);
    }

    .scenario-item i {
      color: var(--accent-400);
      font-size: 1.1rem;
      margin-top: 3px;
      flex-shrink: 0;
      width: 18px;
      text-align: center;
    }

    .scenario-item h3 {
      font-size: 0.98rem;
      font-weight: 600;
      color: var(--ink-900);
      margin-bottom: 2px;
    }

    .scenario-item p {
      font-size: 0.86rem;
      color: var(--ink-600);
      line-height: 1.5;
    }

    /* ===== 使用建议清单 ===== */
    .tips-wrap {
      background: #fff;
      border: 1px solid var(--line);
      border-radius: var(--radius-lg);
      overflow: hidden;
      box-shadow: var(--shadow-soft-sm);
    }

    .tip-row {
      display: flex;
      align-items: center;
      gap: 18px;
      padding: 22px 26px;
      border-bottom: 1px solid var(--line);
      transition: background 0.25s ease;
    }

    .tip-row:last-child {
      border-bottom: none;
    }

    .tip-row:hover {
      background: var(--accent-100);
    }

    .tip-index {
      font-family: "Inter", ui-sans-serif, system-ui;
      font-size: 1.2rem;
      font-weight: 600;
      color: var(--accent-400);
      width: 44px;
      flex-shrink: 0;
      letter-spacing: 0.02em;
    }

    .tip-content {
      flex: 1;
    }

    .tip-content h3 {
      font-size: 0.98rem;
      font-weight: 600;
      color: var(--ink-900);
      margin-bottom: 2px;
    }

    .tip-content p {
      font-size: 0.85rem;
      color: var(--ink-600);
    }

    .tip-arrow {
      color: var(--ink-400);
      font-size: 1rem;
      flex-shrink: 0;
      transition: transform 0.2s ease, color 0.2s ease;
    }

    .tip-row:hover .tip-arrow {
      transform: translateX(4px);
      color: var(--accent-400);
    }

    /* ===== 推荐内容卡 ===== */
    .post-card {
      background: #fff;
      border: 1px solid var(--line);
      border-radius: var(--radius-lg);
      overflow: hidden;
      transition: transform 0.25s ease-out, box-shadow 0.25s ease-out;
      display: flex;
      flex-direction: column;
      height: 100%;
    }

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

    .post-media {
      position: relative;
      overflow: hidden;
      aspect-ratio: 16 / 10;
      background: #EDEAE4;
    }

    .post-media img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.4s ease;
    }

    .post-card:hover .post-media img {
      transform: scale(1.04);
    }

    .post-body {
      padding: 22px;
      display: flex;
      flex-direction: column;
      flex: 1;
    }

    .post-meta {
      display: flex;
      align-items: center;
      gap: 10px;
      margin-bottom: 10px;
    }

    .post-badge {
      background: var(--accent-100);
      color: var(--accent-700);
      font-size: 0.75rem;
      font-weight: 500;
      padding: 3px 10px;
      border-radius: 999px;
    }

    .post-duration {
      font-size: 0.78rem;
      color: var(--ink-400);
      font-family: "Inter", ui-sans-serif, system-ui;
    }

    .post-body h3 {
      font-size: 1rem;
      font-weight: 600;
      color: var(--ink-900);
      margin-bottom: 8px;
      line-height: 1.5;
    }

    .post-body p {
      font-size: 0.86rem;
      color: var(--ink-600);
      line-height: 1.65;
      display: -webkit-box;
      -webkit-line-clamp: 2;
      -webkit-box-orient: vertical;
      overflow: hidden;
      flex: 1;
    }

    .post-footer {
      display: flex;
      align-items: center;
      gap: 8px;
      margin-top: 16px;
      padding-top: 14px;
      border-top: 1px solid var(--line);
    }

    .post-avatar {
      width: 26px;
      height: 26px;
      border-radius: 50%;
      background: var(--primary-600);
      color: #fff;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 0.65rem;
      font-weight: 600;
      flex-shrink: 0;
    }

    .post-username {
      font-size: 0.8rem;
      color: var(--ink-600);
      font-weight: 500;
    }

    .post-time {
      font-size: 0.75rem;
      color: var(--ink-400);
      margin-left: auto;
    }

    /* ===== FAQ ===== */
    .faq-grid {
      display: grid;
      grid-template-columns: 1fr;
      gap: 16px;
      max-width: 860px;
      margin: 0 auto;
    }

    @media (min-width: 768px) {
      .faq-grid {
        grid-template-columns: repeat(2, 1fr);
      }
    }

    .faq-item {
      background: #fff;
      border: 1px solid var(--line);
      border-radius: var(--radius-md);
      overflow: hidden;
      transition: box-shadow 0.2s ease;
    }

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

    .faq-item details {
      padding: 20px 22px;
    }

    .faq-item summary {
      list-style: none;
      display: flex;
      justify-content: space-between;
      align-items: center;
      gap: 12px;
      cursor: pointer;
      font-size: 0.95rem;
      font-weight: 500;
      color: var(--ink-900);
      line-height: 1.5;
    }

    .faq-item summary::-webkit-details-marker {
      display: none;
    }

    .faq-icon {
      width: 24px;
      height: 24px;
      border-radius: 50%;
      background: var(--accent-100);
      color: var(--accent-700);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 0.8rem;
      flex-shrink: 0;
      transition: transform 0.3s ease;
    }

    .faq-item details[open] .faq-icon {
      transform: rotate(45deg);
    }

    .faq-answer {
      font-size: 0.88rem;
      color: var(--ink-600);
      line-height: 1.75;
      padding-top: 12px;
      margin-top: 12px;
      border-top: 1px solid var(--line);
    }

    /* ===== CTA ===== */
    .cta-section {
      padding-top: 2rem;
      padding-bottom: 5rem;
    }

    .cta-box {
      background: radial-gradient(circle at 70% 20%, var(--primary-500) 0%, var(--primary-700) 100%);
      border-radius: var(--radius-lg);
      padding: 56px 32px;
      text-align: center;
      position: relative;
      overflow: hidden;
      box-shadow: var(--shadow-soft-md);
    }

    .cta-box::before {
      content: '';
      position: absolute;
      top: -60px;
      right: -40px;
      width: 180px;
      height: 180px;
      border: 2px solid rgba(255, 255, 255, 0.08);
      border-radius: 50%;
    }

    .cta-box::after {
      content: '';
      position: absolute;
      bottom: -80px;
      left: 60px;
      width: 220px;
      height: 220px;
      border: 1px solid rgba(255, 255, 255, 0.05);
      border-radius: 50%;
    }

    .cta-box h2 {
      font-size: 1.5rem;
      font-weight: 600;
      color: #fff;
      margin-bottom: 12px;
      position: relative;
      z-index: 2;
    }

    .cta-box p {
      font-size: 0.95rem;
      color: rgba(255, 255, 255, 0.85);
      margin-bottom: 28px;
      max-width: 520px;
      margin-left: auto;
      margin-right: auto;
      position: relative;
      z-index: 2;
    }

    .btn-white {
      background: #fff;
      color: var(--primary-700);
      font-weight: 600;
      position: relative;
      z-index: 2;
      min-height: 48px;
      padding: 0 32px;
    }

    .btn-white:hover {
      background: var(--accent-100);
      transform: translateY(-2px);
      box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
    }

    .cta-note {
      font-size: 0.78rem;
      color: rgba(255, 255, 255, 0.5);
      margin-top: 18px;
      position: relative;
      z-index: 2;
    }

    /* ===== Footer ===== */
    .site-footer {
      background: var(--ink-900);
      color: rgba(255, 255, 255, 0.7);
      padding: 56px 0 24px;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1fr;
      gap: 36px;
      margin-bottom: 40px;
    }

    @media (min-width: 640px) {
      .footer-grid {
        grid-template-columns: repeat(2, 1fr);
      }
    }

    @media (min-width: 1024px) {
      .footer-grid {
        grid-template-columns: 2fr 1fr 1fr 1fr;
        gap: 48px;
      }
    }

    .footer-brand h4 {
      font-size: 1.1rem;
      font-weight: 600;
      color: #fff;
      margin-bottom: 12px;
    }

    .footer-brand p {
      font-size: 0.88rem;
      line-height: 1.75;
      color: rgba(255, 255, 255, 0.55);
      max-width: 320px;
    }

    .footer-col h5 {
      font-size: 0.92rem;
      font-weight: 600;
      color: #fff;
      margin-bottom: 14px;
    }

    .footer-col a {
      display: block;
      font-size: 0.88rem;
      color: rgba(255, 255, 255, 0.55);
      padding: 4px 0;
      transition: color 0.2s ease;
      line-height: 1.8;
    }

    .footer-col a:hover {
      color: var(--accent-400);
    }

    .footer-copyright {
      border-top: 1px solid rgba(255, 255, 255, 0.1);
      padding-top: 22px;
      display: flex;
      flex-direction: column;
      gap: 8px;
      font-size: 0.82rem;
      color: rgba(255, 255, 255, 0.4);
    }

    @media (min-width: 768px) {
      .footer-copyright {
        flex-direction: row;
        justify-content: space-between;
      }
    }

    .footer-copyright a {
      color: rgba(255, 255, 255, 0.5);
      transition: color 0.2s ease;
    }

    .footer-copyright a:hover {
      color: var(--accent-400);
    }

    /* ===== 滚动渐入 ===== */
    .reveal {
      opacity: 0;
      transform: translateY(10px);
      transition: opacity 0.5s cubic-bezier(0.22, 1, 0.36, 1), transform 0.5s cubic-bezier(0.22, 1, 0.36, 1);
    }

    .reveal.visible {
      opacity: 1;
      transform: translateY(0);
    }

/* roulang page: article */
:root {
        --primary-600: #4B5E5D;
        --primary-500: #5F7473;
        --primary-700: #3A4A49;
        --accent-400: #C8A87C;
        --accent-100: #F3EAE0;
        --accent-700: #8A6A45;
        --bg-50: #F7F5F1;
        --bg-white: #FFFFFF;
        --ink-900: #1F2928;
        --ink-600: #5A6766;
        --ink-400: #8E9A98;
        --line: #E5E0D8;
        --success: #3E7A5E;
        --warning: #A9763B;
        --error: #A4483E;
        --radius-sm: 8px;
        --radius-md: 14px;
        --radius-lg: 20px;
        --radius-full: 999px;
        --shadow-soft-sm: 0 2px 8px rgba(31, 41, 40, 0.05), 0 1px 2px rgba(31, 41, 40, 0.04);
        --shadow-soft-md: 0 12px 32px rgba(31, 41, 40, 0.07);
        --shadow-hover: 0 18px 48px rgba(31, 41, 40, 0.10);
    }

    * { box-sizing: border-box; }
    html { scroll-behavior: smooth; }
    body {
        margin: 0;
        font-family: "PingFang SC", "HarmonyOS Sans SC", "Source Han Sans SC", "Noto Sans CJK SC", sans-serif;
        background: var(--bg-50);
        color: var(--ink-900);
        line-height: 1.7;
        font-size: 16px;
        -webkit-font-smoothing: antialiased;
    }
    a { color: inherit; text-decoration: none; }
    img { max-width: 100%; display: block; }
    button { font-family: inherit; }

    .container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
    @media (max-width: 640px) { .container { padding: 0 16px; } }

    .site-header {
        position: fixed;
        top: 14px;
        left: 0;
        right: 0;
        z-index: 999;
        padding: 0 24px;
    }
    .nav-container {
        max-width: 1200px;
        margin: 0 auto;
        display: flex;
        align-items: center;
        justify-content: space-between;
        background: rgba(255, 255, 255, 0.75);
        backdrop-filter: blur(16px);
        -webkit-backdrop-filter: blur(16px);
        border-radius: var(--radius-full);
        padding: 10px 20px;
        border: 1px solid rgba(229, 224, 216, 0.6);
        transition: background 0.3s ease, box-shadow 0.3s ease;
    }
    .site-header.scrolled .nav-container {
        background: rgba(255, 255, 255, 0.92);
        box-shadow: var(--shadow-soft-sm);
    }
    .logo {
        font-size: 1.2rem;
        font-weight: 700;
        color: var(--ink-900);
        display: flex;
        align-items: center;
        gap: 8px;
        letter-spacing: -0.01em;
    }
    .logo-dot {
        width: 8px;
        height: 8px;
        background: var(--accent-400);
        border-radius: 50%;
        display: inline-block;
    }
    .nav-list { display: flex; align-items: center; gap: 6px; }
    .nav-link {
        display: inline-block;
        padding: 8px 16px;
        border-radius: var(--radius-full);
        font-size: 0.92rem;
        font-weight: 500;
        color: var(--ink-600);
        position: relative;
        transition: color 0.2s;
    }
    .nav-link:hover { color: var(--primary-600); }
    .nav-link.active { color: var(--primary-700); font-weight: 600; }
    .nav-link.active::after {
        content: "";
        position: absolute;
        left: 16px;
        right: 16px;
        bottom: 4px;
        height: 2px;
        background: var(--primary-600);
        border-radius: var(--radius-full);
    }
    .nav-dropdown { position: relative; }
    .dropdown-panel {
        position: absolute;
        top: calc(100% + 10px);
        left: 50%;
        transform: translateX(-50%) translateY(8px);
        background: var(--bg-white);
        border: 1px solid var(--line);
        border-radius: var(--radius-md);
        padding: 10px;
        min-width: 180px;
        opacity: 0;
        visibility: hidden;
        transition: all 0.25s ease;
    }
    .nav-dropdown:hover .dropdown-panel {
        opacity: 1;
        visibility: visible;
        transform: translateX(-50%) translateY(0);
    }
    .dropdown-panel a {
        display: block;
        padding: 10px 14px;
        border-radius: var(--radius-sm);
        font-size: 0.9rem;
        color: var(--ink-600);
        transition: background 0.2s, color 0.2s;
    }
    .dropdown-panel a:hover { background: var(--accent-100); color: var(--primary-700); }

    .nav-actions { display: flex; align-items: center; gap: 10px; }
    .mobile-menu-btn {
        display: none;
        background: none;
        border: 1px solid var(--line);
        border-radius: 50%;
        width: 40px;
        height: 40px;
        align-items: center;
        justify-content: center;
        cursor: pointer;
        color: var(--ink-900);
        font-size: 1.1rem;
        transition: background 0.2s;
    }
    .mobile-menu-btn:hover { background: var(--accent-100); }

    .mobile-menu {
        display: none;
        position: fixed;
        top: 70px;
        left: 16px;
        right: 16px;
        background: rgba(255, 255, 255, 0.98);
        border-radius: var(--radius-md);
        border: 1px solid var(--line);
        padding: 16px;
        box-shadow: var(--shadow-soft-md);
        z-index: 998;
        flex-direction: column;
        gap: 4px;
    }
    .mobile-menu.open { display: flex; }
    .mobile-menu a {
        padding: 14px 12px;
        border-radius: var(--radius-sm);
        font-weight: 500;
        color: var(--ink-900);
        border-bottom: 1px solid var(--line);
    }
    .mobile-menu a:last-child { border-bottom: none; }
    .mobile-menu a:hover { background: var(--accent-100); }

    @media (max-width: 768px) {
        .nav-list, .nav-actions .btn-nav { display: none; }
        .mobile-menu-btn { display: flex; }
    }

    .btn {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        gap: 8px;
        min-height: 44px;
        padding: 0 22px;
        border-radius: var(--radius-sm);
        font-size: 0.95rem;
        font-weight: 500;
        line-height: 1;
        border: 1px solid transparent;
        cursor: pointer;
        transition: all 0.2s ease;
    }
    .btn-primary { background: var(--primary-600); color: #fff; }
    .btn-primary:hover { background: var(--primary-500); transform: translateY(-2px); box-shadow: var(--shadow-soft-sm); }
    .btn-primary:active { background: var(--primary-700); transform: translateY(0); }
    .btn-outline { background: transparent; border-color: var(--primary-600); color: var(--primary-700); }
    .btn-outline:hover { background: var(--accent-100); border-color: var(--accent-400); }
    .btn-light { background: #fff; color: var(--primary-700); font-weight: 600; }
    .btn-light:hover { background: var(--accent-100); transform: translateY(-2px); box-shadow: var(--shadow-soft-sm); }
    .btn-arrow { transition: transform 0.2s; }
    .btn:hover .btn-arrow { transform: translateX(4px); }
    .btn-nav { min-height: 38px; padding: 0 18px; font-size: 0.88rem; }

    .breadcrumb {
        display: flex;
        align-items: center;
        gap: 8px;
        font-size: 0.85rem;
        color: var(--ink-400);
        padding-top: 110px;
        margin-bottom: 24px;
        flex-wrap: wrap;
    }
    .breadcrumb a { color: var(--ink-400); transition: color 0.2s; }
    .breadcrumb a:hover { color: var(--primary-600); }
    .breadcrumb-sep { color: var(--line); }
    .breadcrumb-current { color: var(--ink-600); font-weight: 500; }

    .article-header { margin-bottom: 36px; }
    .article-title {
        font-size: clamp(1.9rem, 4vw, 3rem);
        font-weight: 650;
        line-height: 1.2;
        letter-spacing: -0.02em;
        color: var(--ink-900);
        margin: 0 0 16px;
    }
    .article-meta {
        display: flex;
        align-items: center;
        flex-wrap: wrap;
        gap: 12px;
        font-size: 0.85rem;
        color: var(--ink-400);
    }
    .article-meta .badge { font-size: 0.78rem; padding: 4px 14px; }
    .article-meta span { display: inline-flex; align-items: center; gap: 5px; }

    .article-content {
        max-width: 720px;
        margin: 0 auto;
        font-size: 1rem;
        line-height: 1.8;
        color: var(--ink-900);
        background: var(--bg-white);
        border: 1px solid var(--line);
        border-radius: var(--radius-lg);
        padding: 48px 56px;
        box-shadow: var(--shadow-soft-sm);
    }
    .article-content > *:last-child { margin-bottom: 0; }
    .article-content p { margin-bottom: 1.5rem; }
    .article-content h2 { font-size: 1.55rem; font-weight: 600; margin: 2rem 0 1.25rem; line-height: 1.35; }
    .article-content h3 { font-size: 1.25rem; font-weight: 600; margin: 2rem 0 1rem; }
    .article-content ul { margin-bottom: 1.5rem; padding-left: 1.5rem; list-style: disc; }
    .article-content ol { margin-bottom: 1.5rem; padding-left: 1.5rem; list-style: decimal; }
    .article-content li { margin-bottom: 0.5rem; }
    .article-content a { color: var(--primary-600); text-decoration: underline; text-underline-offset: 3px; }
    .article-content a:hover { color: var(--accent-700); }
    .article-content blockquote {
        border-left: 3px solid var(--accent-400);
        background: var(--accent-100);
        padding: 18px 22px;
        border-radius: var(--radius-sm);
        margin-bottom: 1.5rem;
        color: var(--ink-600);
    }
    .article-content img { border-radius: var(--radius-md); margin: 24px auto; }
    .article-content figure { margin: 24px 0; }
    .article-content figcaption { font-size: 0.85rem; color: var(--ink-400); text-align: center; margin-top: 8px; }
    .article-content pre {
        background: var(--ink-900);
        color: rgba(255, 255, 255, 0.92);
        padding: 24px;
        border-radius: var(--radius-md);
        overflow-x: auto;
        margin-bottom: 1.5rem;
        font-size: 0.9rem;
    }
    .article-content code { font-family: "SFMono-Regular", Consolas, monospace; }
    .article-content p code { background: var(--accent-100); padding: 2px 6px; border-radius: 4px; font-size: 0.9em; }
    .article-content table { width: 100%; border-collapse: collapse; margin-bottom: 1.5rem; font-size: 0.9rem; }
    .article-content th, .article-content td { border: 1px solid var(--line); padding: 12px 14px; text-align: left; }
    .article-content th { background: var(--bg-50); font-weight: 600; }
    .article-content hr { border: none; border-top: 1px solid var(--line); margin: 32px 0; }

    @media (max-width: 640px) {
        .article-content { padding: 28px 22px; border-radius: var(--radius-md); }
    }

    .tag-list {
        display: flex;
        flex-wrap: wrap;
        gap: 8px;
        margin-top: 32px;
        padding-top: 24px;
        border-top: 1px solid var(--line);
    }
    .tag {
        display: inline-block;
        background: var(--accent-100);
        color: var(--accent-700);
        font-size: 0.8rem;
        font-weight: 500;
        padding: 6px 14px;
        border-radius: var(--radius-full);
        transition: background 0.2s, color 0.2s;
    }
    .tag:hover { background: var(--accent-400); color: #fff; }

    .post-nav {
        display: flex;
        gap: 16px;
        margin-top: 32px;
        padding-top: 24px;
        border-top: 1px solid var(--line);
    }
    .post-nav-link {
        flex: 1;
        padding: 18px 20px;
        border: 1px solid var(--line);
        border-radius: var(--radius-md);
        background: var(--bg-white);
        font-size: 0.9rem;
        color: var(--ink-600);
        transition: all 0.2s;
        line-height: 1.5;
    }
    .post-nav-link:hover { border-color: var(--primary-500); color: var(--primary-700); box-shadow: var(--shadow-soft-sm); transform: translateY(-2px); }
    @media (max-width: 640px) { .post-nav { flex-direction: column; } }

    .article-empty {
        max-width: 720px;
        margin: 0 auto;
        text-align: center;
        padding: 80px 40px;
        background: var(--bg-white);
        border: 1px solid var(--line);
        border-radius: var(--radius-lg);
        box-shadow: var(--shadow-soft-sm);
    }
    .empty-icon {
        width: 64px;
        height: 64px;
        border-radius: 50%;
        background: var(--accent-100);
        color: var(--accent-700);
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 1.6rem;
        margin: 0 auto 20px;
    }
    .article-empty h1 { font-size: 1.8rem; font-weight: 650; margin-bottom: 12px; color: var(--ink-900); }
    .article-empty p { color: var(--ink-600); margin-bottom: 24px; }

    .section { padding: 64px 0; }
    .section-head { margin-bottom: 36px; display: flex; align-items: flex-end; justify-content: space-between; gap: 20px; flex-wrap: wrap; }
    .section-label {
        display: inline-block;
        font-size: 0.8rem;
        font-weight: 600;
        letter-spacing: 0.05em;
        color: var(--accent-700);
        background: var(--accent-100);
        padding: 6px 14px;
        border-radius: var(--radius-full);
        margin-bottom: 12px;
        text-transform: uppercase;
    }
    .section-title { font-size: clamp(1.5rem, 3vw, 2rem); font-weight: 600; line-height: 1.3; color: var(--ink-900); margin: 0; }
    .section-link { font-size: 0.9rem; color: var(--primary-600); font-weight: 500; transition: color 0.2s; }
    .section-link:hover { color: var(--accent-700); }
    .section-link i { margin-left: 4px; transition: transform 0.2s; }
    .section-link:hover i { transform: translateX(3px); }

    .news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin-top: 32px; }
    .news-card {
        background: var(--bg-white);
        border: 1px solid var(--line);
        border-radius: var(--radius-md);
        overflow: hidden;
        transition: transform 0.2s ease, box-shadow 0.2s ease;
        display: flex;
        flex-direction: column;
    }
    .news-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
    .news-thumb { aspect-ratio: 16 / 10; overflow: hidden; background: var(--bg-50); }
    .news-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.4s ease; }
    .news-card:hover .news-thumb img { transform: scale(1.04); }
    .news-body { padding: 20px 22px 22px; display: flex; flex-direction: column; flex: 1; }
    .news-body .badge { align-self: flex-start; margin-bottom: 10px; }
    .news-body h3 { font-size: 1.1rem; font-weight: 600; line-height: 1.45; margin: 0 0 8px; color: var(--ink-900); display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
    .news-body p { font-size: 0.9rem; color: var(--ink-600); line-height: 1.6; margin: 0 0 14px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
    .news-meta { display: flex; align-items: center; gap: 10px; font-size: 0.8rem; color: var(--ink-400); margin-top: auto; }
    .avatar-dot {
        width: 24px;
        height: 24px;
        border-radius: 50%;
        background: var(--primary-600);
        color: #fff;
        font-size: 0.7rem;
        display: flex;
        align-items: center;
        justify-content: center;
        flex-shrink: 0;
    }

    .badge {
        display: inline-block;
        height: 22px;
        line-height: 22px;
        padding: 0 12px;
        font-size: 0.78rem;
        font-weight: 500;
        border-radius: var(--radius-full);
        background: var(--accent-100);
        color: var(--accent-700);
        white-space: nowrap;
    }
    .badge-primary { background: rgba(75, 94, 93, 0.12); color: var(--primary-700); }

    .faq-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin-top: 32px; }
    .faq-item {
        background: var(--bg-white);
        border: 1px solid var(--line);
        border-radius: var(--radius-md);
        padding: 24px;
        transition: box-shadow 0.2s, border-color 0.2s;
    }
    .faq-item:hover { box-shadow: var(--shadow-soft-sm); border-color: var(--accent-400); }
    .faq-item summary {
        list-style: none;
        cursor: pointer;
        font-weight: 600;
        font-size: 1rem;
        color: var(--ink-900);
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 12px;
    }
    .faq-item summary::-webkit-details-marker { display: none; }
    .faq-icon {
        flex-shrink: 0;
        width: 28px;
        height: 28px;
        border-radius: 50%;
        background: var(--accent-100);
        color: var(--accent-700);
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 0.9rem;
        transition: transform 0.25s, background 0.25s, color 0.25s;
    }
    .faq-item[open] .faq-icon { transform: rotate(45deg); background: var(--primary-600); color: #fff; }
    .faq-answer { margin-top: 14px; font-size: 0.92rem; line-height: 1.7; color: var(--ink-600); }

    .cta-section { padding: 22px 0 64px; }
    .cta-inner {
        background: radial-gradient(circle at 80% 20%, var(--primary-500), var(--primary-700) 60%);
        border-radius: var(--radius-lg);
        padding: 64px 48px;
        text-align: center;
        position: relative;
        overflow: hidden;
    }
    .cta-inner h2 { font-size: clamp(1.6rem, 3vw, 2.2rem); font-weight: 600; color: #fff; margin: 0 0 14px; }
    .cta-inner p { color: rgba(255, 255, 255, 0.82); font-size: 1rem; margin-bottom: 28px; }
    .cta-note { display: block; margin-top: 18px; font-size: 0.8rem; color: rgba(255, 255, 255, 0.6); }

    .site-footer { background: var(--ink-900); color: rgba(255, 255, 255, 0.82); padding: 64px 0 0; margin-top: 32px; }
    .footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1.2fr; gap: 40px; padding-bottom: 40px; }
    .footer-brand h4 { color: #fff; font-size: 1.2rem; font-weight: 700; margin: 0 0 12px; }
    .footer-brand p { font-size: 0.9rem; line-height: 1.7; color: rgba(255, 255, 255, 0.65); max-width: 320px; }
    .footer-col h5 { color: #fff; font-size: 0.95rem; font-weight: 600; margin: 0 0 16px; }
    .footer-col a { display: block; font-size: 0.88rem; color: rgba(255, 255, 255, 0.65); padding: 6px 0; transition: color 0.2s; }
    .footer-col a:hover { color: var(--accent-400); }
    .footer-copyright {
        border-top: 1px solid rgba(255, 255, 255, 0.12);
        padding: 22px 0;
        display: flex;
        justify-content: space-between;
        align-items: center;
        font-size: 0.82rem;
        color: rgba(255, 255, 255, 0.5);
        flex-wrap: wrap;
        gap: 8px;
    }
    .footer-copyright a { color: rgba(255, 255, 255, 0.65); }
    .footer-copyright a:hover { color: var(--accent-400); }

    @media (max-width: 768px) {
        .footer-grid { grid-template-columns: 1fr 1fr; gap: 28px; }
        .footer-brand { grid-column: 1 / -1; }
        .news-grid { grid-template-columns: 1fr 1fr; }
        .faq-grid { grid-template-columns: 1fr; }
    }
    @media (max-width: 640px) {
        .footer-grid { grid-template-columns: 1fr; }
        .news-grid { grid-template-columns: 1fr; }
        .cta-inner { padding: 48px 20px; }
        .section { padding: 48px 0; }
        .section-head { flex-direction: column; align-items: flex-start; }
    }

/* roulang page: category2 */
/* ========== 设计变量 ========== */
        :root {
            --primary-50: #EDF2F1;
            --primary-100: #DCE5E3;
            --primary-500: #5F7473;
            --primary-600: #4B5E5D;
            --primary-700: #3A4A49;
            --accent-100: #F3EAE0;
            --accent-400: #C8A87C;
            --accent-700: #A0774A;
            --bg-warm: #F7F5F1;
            --ink-900: #1F2928;
            --ink-600: #5A6766;
            --ink-400: #8E9A98;
            --line: #E5E0D8;
            --success: #3E7A5E;
            --warning: #A9763B;
            --error: #A4483E;
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-full: 999px;
            --shadow-sm: 0 2px 8px rgba(31, 41, 40, 0.05), 0 1px 2px rgba(31, 41, 40, 0.04);
            --shadow-md: 0 12px 32px rgba(31, 41, 40, 0.07);
            --shadow-hover: 0 18px 48px rgba(31, 41, 40, 0.10);
        }

        /* ========== Reset / Base ========== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: "PingFang SC", "HarmonyOS Sans SC", "Source Han Sans SC", "Noto Sans CJK SC", sans-serif;
            background-color: var(--bg-warm);
            color: var(--ink-900);
            line-height: 1.7;
            font-size: 1rem;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: color 0.2s ease;
        }
        button {
            font-family: inherit;
            border: none;
            background: none;
            cursor: pointer;
        }
        ul,
        ol {
            list-style: none;
        }

        /* ========== 容器 ========== */
        .container {
            max-width: 1200px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 1rem;
            padding-right: 1rem;
        }
        @media (min-width: 640px) {
            .container {
                padding-left: 1.5rem;
                padding-right: 1.5rem;
            }
        }
        @media (min-width: 1024px) {
            .container {
                padding-left: 2rem;
                padding-right: 2rem;
            }
        }

        /* ========== 导航 Header ========== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 100;
            padding-top: 14px;
            padding-left: 16px;
            padding-right: 16px;
            pointer-events: none;
        }
        .site-nav {
            max-width: 1200px;
            margin: 0 auto;
            display: flex;
            align-items: center;
            justify-content: space-between;
            background: rgba(255, 255, 255, 0.75);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-radius: var(--radius-full);
            border: 1px solid rgba(255, 255, 255, 0.7);
            box-shadow: 0 2px 20px rgba(31, 41, 40, 0.06);
            padding: 10px 20px;
            pointer-events: auto;
            transition: background 0.3s ease, box-shadow 0.3s ease;
        }
        .site-nav.scrolled {
            background: rgba(255, 255, 255, 0.92);
            box-shadow: 0 4px 28px rgba(31, 41, 40, 0.08);
        }
        .nav-logo {
            font-weight: 700;
            font-size: 1.15rem;
            color: var(--ink-900);
            letter-spacing: -0.01em;
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .nav-logo i {
            color: var(--primary-600);
            font-size: 1.1rem;
        }
        .nav-list {
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .nav-link {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            padding: 8px 14px;
            font-size: 0.92rem;
            font-weight: 500;
            color: var(--ink-600);
            border-radius: var(--radius-full);
            transition: color 0.2s ease, background 0.2s ease;
            position: relative;
        }
        .nav-link::after {
            content: '';
            position: absolute;
            bottom: 4px;
            left: 50%;
            transform: translateX(-50%);
            width: 0;
            height: 1.5px;
            border-radius: 2px;
            background: var(--primary-600);
            transition: width 0.3s cubic-bezier(0.22, 1, 0.36, 1);
        }
        .nav-link:hover {
            color: var(--primary-600);
            background: rgba(75, 94, 93, 0.05);
        }
        .nav-link:hover::after {
            width: calc(100% - 24px);
        }
        .nav-link.active {
            color: var(--primary-700);
            font-weight: 600;
            background: rgba(75, 94, 93, 0.08);
        }
        .nav-link.active::after {
            width: calc(100% - 24px);
        }
        .nav-dropdown {
            position: relative;
        }
        .dropdown-panel {
            position: absolute;
            top: calc(100% + 8px);
            left: 50%;
            transform: translateX(-50%) translateY(8px);
            background: #fff;
            border: 1px solid var(--line);
            border-radius: var(--radius-md);
            padding: 8px;
            min-width: 180px;
            opacity: 0;
            visibility: hidden;
            transition: all 0.25s cubic-bezier(0.22, 1, 0.36, 1);
            box-shadow: var(--shadow-md);
        }
        .nav-dropdown:hover .dropdown-panel {
            opacity: 1;
            visibility: visible;
            transform: translateX(-50%) translateY(0);
        }
        .dropdown-panel a {
            display: block;
            padding: 10px 14px;
            font-size: 0.88rem;
            font-weight: 500;
            color: var(--ink-600);
            border-radius: var(--radius-sm);
            transition: background 0.2s ease, color 0.2s ease;
        }
        .dropdown-panel a:hover {
            background: var(--primary-50);
            color: var(--primary-700);
        }
        .dropdown-panel a.active {
            background: var(--primary-50);
            color: var(--primary-700);
            font-weight: 600;
        }
        .nav-toggle {
            display: none;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            color: var(--ink-900);
            background: rgba(255, 255, 255, 0.8);
            border: 1px solid var(--line);
            transition: background 0.2s ease;
        }
        .nav-toggle:hover {
            background: var(--primary-50);
        }

        /* 移动端导航 */
        @media (max-width: 767px) {
            .site-nav {
                border-radius: 24px;
                padding: 8px 14px;
            }
            .nav-list {
                display: none;
                position: absolute;
                top: calc(100% + 8px);
                left: 0;
                right: 0;
                background: rgba(255, 255, 255, 0.98);
                border-radius: var(--radius-md);
                border: 1px solid var(--line);
                box-shadow: var(--shadow-md);
                padding: 12px;
                flex-direction: column;
                align-items: stretch;
                gap: 2px;
            }
            .nav-list.open {
                display: flex;
            }
            .nav-link {
                padding: 12px 16px;
                font-size: 0.95rem;
            }
            .nav-link::after {
                display: none;
            }
            .nav-dropdown {
                width: 100%;
            }
            .nav-dropdown>a.nav-link {
                pointer-events: none;
            }
            .dropdown-panel {
                position: static;
                transform: none;
                opacity: 1;
                visibility: visible;
                box-shadow: none;
                border: none;
                padding: 4px 0 4px 12px;
                min-width: 0;
                background: transparent;
            }
            .dropdown-panel a {
                padding: 10px 12px;
                font-size: 0.9rem;
            }
            .nav-toggle {
                display: inline-flex;
            }
        }

        /* ========== 按钮 ========== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            min-height: 44px;
            padding: 10px 24px;
            border-radius: var(--radius-sm);
            font-size: 0.95rem;
            font-weight: 500;
            line-height: 1.2;
            transition: all 0.2s ease;
        }
        .btn-primary {
            background: var(--primary-600);
            color: #fff;
            box-shadow: 0 2px 8px rgba(75, 94, 93, 0.18);
        }
        .btn-primary:hover {
            background: var(--primary-500);
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(75, 94, 93, 0.22);
        }
        .btn-primary:active {
            background: var(--primary-700);
            transform: translateY(0);
        }
        .btn-outline {
            background: transparent;
            border: 1px solid var(--primary-600);
            color: var(--primary-700);
        }
        .btn-outline:hover {
            border-color: var(--accent-400);
            color: var(--accent-700);
            background: var(--accent-100);
            transform: translateY(-2px);
        }
        .btn-outline:active {
            transform: translateY(0);
        }
        .btn-light {
            background: #fff;
            color: var(--primary-700);
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
        }
        .btn-light:hover {
            background: var(--accent-100);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.10);
        }
        .btn-light:active {
            transform: translateY(0);
        }
        .btn i {
            font-size: 0.85rem;
            transition: transform 0.2s ease;
        }
        .btn:hover i {
            transform: translateX(3px);
        }

        /* ========== Hero ========== */
        .category-hero {
            position: relative;
            padding: 140px 0 72px;
            background:
                linear-gradient(135deg, rgba(247, 245, 241, 0.92) 0%, rgba(247, 245, 241, 0.78) 50%, rgba(247, 245, 241, 0.92) 100%),
                url('/assets/images/backpic/back-2.webp') center center / cover no-repeat;
            overflow: hidden;
        }
        .category-hero::before {
            content: '';
            position: absolute;
            top: -80px;
            right: -60px;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(200, 168, 124, 0.12) 0%, transparent 70%);
            pointer-events: none;
        }
        .category-hero .hero-content {
            position: relative;
            z-index: 1;
            text-align: center;
            max-width: 720px;
            margin: 0 auto;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 16px;
            background: var(--accent-100);
            color: var(--accent-700);
            font-size: 0.82rem;
            font-weight: 600;
            border-radius: var(--radius-full);
            margin-bottom: 20px;
            letter-spacing: 0.02em;
        }
        .hero-badge i {
            font-size: 0.75rem;
        }
        .hero-title {
            font-size: 1.9rem;
            font-weight: 700;
            line-height: 1.25;
            letter-spacing: -0.02em;
            color: var(--ink-900);
            margin-bottom: 16px;
        }
        .hero-subtitle {
            font-size: 1rem;
            line-height: 1.8;
            color: var(--ink-600);
            margin-bottom: 28px;
            max-width: 560px;
            margin-left: auto;
            margin-right: auto;
        }
        .hero-actions {
            display: flex;
            gap: 12px;
            justify-content: center;
            flex-wrap: wrap;
            margin-bottom: 28px;
        }
        .hero-trust {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 12px;
            font-size: 0.82rem;
            color: var(--ink-400);
        }
        .hero-trust .dot {
            width: 3px;
            height: 3px;
            border-radius: 50%;
            background: var(--accent-400);
        }
        @media (min-width: 768px) {
            .category-hero {
                padding: 170px 0 96px;
            }
            .hero-title {
                font-size: 2.6rem;
                line-height: 1.25;
            }
            .hero-subtitle {
                font-size: 1.05rem;
            }
        }

        /* ========== 通用区块 ========== */
        .section {
            padding: 56px 0;
        }
        @media (min-width: 768px) {
            .section {
                padding: 80px 0;
            }
        }
        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 4px 12px;
            background: var(--primary-50);
            color: var(--primary-700);
            font-size: 0.78rem;
            font-weight: 600;
            border-radius: var(--radius-full);
            margin-bottom: 12px;
            letter-spacing: 0.03em;
        }
        .section-title {
            font-size: 1.4rem;
            font-weight: 600;
            line-height: 1.3;
            color: var(--ink-900);
            letter-spacing: -0.01em;
            margin-bottom: 12px;
        }
        .section-desc {
            font-size: 0.95rem;
            color: var(--ink-600);
            max-width: 600px;
            line-height: 1.7;
        }
        @media (min-width: 768px) {
            .section-title {
                font-size: 2rem;
            }
        }

        /* ========== 核心能力卡片 ========== */
        .feature-card {
            background: #fff;
            border: 1px solid var(--line);
            border-radius: var(--radius-md);
            padding: 32px 24px;
            transition: transform 0.25s ease, box-shadow 0.25s ease;
            height: 100%;
        }
        .feature-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }
        .feature-icon {
            width: 52px;
            height: 52px;
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            background: var(--primary-50);
            color: var(--primary-600);
            font-size: 1.25rem;
            margin-bottom: 20px;
            transition: background 0.2s ease, color 0.2s ease;
        }
        .feature-card:hover .feature-icon {
            background: var(--primary-600);
            color: #fff;
        }
        .feature-card h3 {
            font-size: 1.15rem;
            font-weight: 600;
            margin-bottom: 10px;
            color: var(--ink-900);
        }
        .feature-card p {
            font-size: 0.88rem;
            color: var(--ink-600);
            line-height: 1.7;
        }

        /* ========== 步骤流程 ========== */
        .steps-section {
            background: #fff;
            border-top: 1px solid var(--line);
            border-bottom: 1px solid var(--line);
        }
        .steps-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 24px;
            margin-top: 40px;
        }
        @media (min-width: 768px) {
            .steps-grid {
                grid-template-columns: repeat(4, 1fr);
                gap: 20px;
            }
        }
        .step-item {
            position: relative;
            padding: 24px;
            background: var(--bg-warm);
            border-radius: var(--radius-md);
            border: 1px solid transparent;
            transition: border-color 0.2s ease, background 0.2s ease;
        }
        .step-item:hover {
            border-color: var(--accent-400);
            background: var(--accent-100);
        }
        .step-number {
            font-family: 'Inter', sans-serif;
            font-size: 2.2rem;
            font-weight: 600;
            color: var(--accent-400);
            line-height: 1;
            margin-bottom: 16px;
            display: block;
        }
        .step-item h3 {
            font-size: 1rem;
            font-weight: 600;
            color: var(--ink-900);
            margin-bottom: 8px;
        }
        .step-item p {
            font-size: 0.85rem;
            color: var(--ink-600);
            line-height: 1.65;
        }
        .step-arrow {
            display: none;
            position: absolute;
            top: 50%;
            right: -16px;
            transform: translateY(-50%);
            color: var(--accent-400);
            font-size: 0.8rem;
            z-index: 1;
        }
        @media (min-width: 768px) {
            .step-arrow {
                display: block;
            }
        }

        /* ========== 策略对比 ========== */
        .compare-section {
            background: linear-gradient(135deg, var(--primary-700) 0%, #31403f 100%);
            color: #fff;
        }
        .compare-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 24px;
            margin-top: 40px;
        }
        @media (min-width: 768px) {
            .compare-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
        }
        .compare-card {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 32px 28px;
            position: relative;
            transition: transform 0.25s ease, box-shadow 0.25s ease;
        }
        .compare-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 20px 48px rgba(0, 0, 0, 0.18);
        }
        .compare-card.recommended {
            border: 2px solid var(--accent-400);
        }
        .compare-badge {
            position: absolute;
            top: -12px;
            right: 20px;
            background: var(--accent-400);
            color: #fff;
            font-size: 0.75rem;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: var(--radius-full);
            letter-spacing: 0.03em;
        }
        .compare-card h3 {
            font-size: 1.15rem;
            font-weight: 600;
            color: var(--ink-900);
            margin-bottom: 4px;
        }
        .compare-card .sub {
            font-size: 0.85rem;
            color: var(--ink-400);
            margin-bottom: 20px;
        }
        .compare-list {
            list-style: none;
            margin-bottom: 20px;
        }
        .compare-list li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            padding: 8px 0;
            font-size: 0.88rem;
            color: var(--ink-600);
            border-bottom: 1px solid var(--line);
        }
        .compare-list li:last-child {
            border-bottom: none;
        }
        .compare-list li i {
            color: var(--success);
            font-size: 0.85rem;
            margin-top: 4px;
        }
        .compare-list li .icon-basic {
            color: var(--ink-400);
        }
        .compare-tag {
            display: inline-flex;
            align-items: center;
            padding: 6px 14px;
            font-size: 0.78rem;
            font-weight: 600;
            border-radius: var(--radius-full);
            background: var(--primary-50);
            color: var(--primary-700);
        }

        /* ========== 适用场景（非对称） ========== */
        .scenario-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 40px;
            align-items: center;
            margin-top: 32px;
        }
        @media (min-width: 1024px) {
            .scenario-grid {
                grid-template-columns: 3fr 2fr;
                gap: 60px;
            }
        }
        .scenario-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .scenario-item {
            display: flex;
            gap: 14px;
            padding: 18px 20px;
            background: #fff;
            border: 1px solid var(--line);
            border-radius: var(--radius-md);
            transition: border-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
        }
        .scenario-item:hover {
            border-color: var(--primary-500);
            transform: translateX(4px);
            box-shadow: var(--shadow-sm);
        }
        .scenario-item .num {
            font-family: 'Inter', sans-serif;
            font-size: 1rem;
            font-weight: 600;
            color: var(--accent-400);
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--accent-100);
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .scenario-item p {
            font-size: 0.9rem;
            color: var(--ink-600);
            line-height: 1.65;
        }
        .scenario-image {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-md);
            position: relative;
        }
        .scenario-image img {
            width: 100%;
            aspect-ratio: 4/3;
            object-fit: cover;
        }
        .scenario-image::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 60%, rgba(31, 41, 40, 0.15) 100%);
        }

        /* ========== FAQ ========== */
        .faq-section {
            background: #fff;
            border-top: 1px solid var(--line);
        }
        .faq-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 16px;
            margin-top: 32px;
        }
        @media (min-width: 768px) {
            .faq-grid {
                grid-template-columns: 1fr 1fr;
                gap: 20px;
            }
        }
        .faq-item {
            background: var(--bg-warm);
            border: 1px solid var(--line);
            border-radius: var(--radius-md);
            padding: 20px 22px;
            transition: border-color 0.2s ease;
        }
        .faq-item:hover {
            border-color: var(--primary-500);
        }
        .faq-item summary {
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--ink-900);
            list-style: none;
            gap: 16px;
        }
        .faq-item summary::-webkit-details-marker {
            display: none;
        }
        .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--primary-50);
            color: var(--primary-600);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.85rem;
            transition: transform 0.3s cubic-bezier(0.22, 1, 0.36, 1), background 0.2s ease;
        }
        details[open] .faq-icon {
            transform: rotate(45deg);
            background: var(--primary-600);
            color: #fff;
        }
        .faq-item .answer {
            margin-top: 14px;
            padding-top: 14px;
            border-top: 1px solid var(--line);
            font-size: 0.88rem;
            color: var(--ink-600);
            line-height: 1.75;
        }

        /* ========== CTA ========== */
        .cta-section {
            padding: 64px 0;
        }
        .cta-box {
            background: radial-gradient(ellipse at 30% 20%, var(--primary-500) 0%, var(--primary-700) 65%);
            border-radius: var(--radius-lg);
            padding: 48px 32px;
            text-align: center;
            color: #fff;
            position: relative;
            overflow: hidden;
        }
        .cta-box::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 160px;
            height: 160px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.04);
        }
        .cta-box h2 {
            font-size: 1.5rem;
            font-weight: 600;
            margin-bottom: 12px;
            letter-spacing: -0.01em;
        }
        .cta-box p {
            font-size: 0.95rem;
            color: rgba(255, 255, 255, 0.85);
            max-width: 440px;
            margin: 0 auto 28px;
            line-height: 1.7;
        }
        .cta-box .btn-light {
            margin-bottom: 16px;
        }
        .cta-note {
            font-size: 0.78rem;
            color: rgba(255, 255, 255, 0.5);
        }
        @media (min-width: 768px) {
            .cta-section {
                padding: 80px 0;
            }
            .cta-box {
                padding: 64px 48px;
            }
            .cta-box h2 {
                font-size: 1.8rem;
            }
        }

        /* ========== Footer ========== */
        .site-footer {
            background: var(--ink-900);
            color: rgba(255, 255, 255, 0.75);
            padding: 56px 0 24px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 32px;
            margin-bottom: 40px;
        }
        @media (min-width: 640px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (min-width: 1024px) {
            .footer-grid {
                grid-template-columns: 2fr 1fr 1.2fr 1.2fr;
                gap: 40px;
            }
        }
        .footer-brand h4 {
            font-size: 1.15rem;
            font-weight: 600;
            color: #fff;
            margin-bottom: 12px;
        }
        .footer-brand p {
            font-size: 0.88rem;
            color: rgba(255, 255, 255, 0.55);
            line-height: 1.7;
            max-width: 300px;
        }
        .footer-col h5 {
            font-size: 0.9rem;
            font-weight: 600;
            color: #fff;
            margin-bottom: 16px;
        }
        .footer-col a {
            display: block;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.55);
            padding: 4px 0;
            transition: color 0.2s ease;
        }
        .footer-col a:hover {
            color: var(--accent-400);
        }
        .footer-copyright {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 24px;
            display: flex;
            flex-direction: column;
            gap: 8px;
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.35);
            text-align: center;
        }
        @media (min-width: 768px) {
            .footer-copyright {
                flex-direction: row;
                justify-content: space-between;
                text-align: left;
            }
        }
        .footer-copyright a {
            color: rgba(255, 255, 255, 0.45);
            transition: color 0.2s ease;
        }
        .footer-copyright a:hover {
            color: var(--accent-400);
        }

        /* ========== 滚动渐入 ========== */
        .reveal {
            opacity: 0;
            transform: translateY(14px);
            transition: opacity 0.55s cubic-bezier(0.22, 1, 0.36, 1), transform 0.55s cubic-bezier(0.22, 1, 0.36, 1);
        }
        .reveal.revealed {
            opacity: 1;
            transform: translateY(0);
        }

        /* ========== 响应式补充 ========== */
        @media (max-width: 520px) {
            .hero-title {
                font-size: 1.55rem;
            }
            .hero-actions .btn {
                width: 100%;
                max-width: 280px;
            }
            .hero-trust {
                flex-wrap: wrap;
                gap: 8px;
            }
            .section-title {
                font-size: 1.25rem;
            }
            .compare-card {
                padding: 26px 20px;
            }
            .cta-box {
                padding: 40px 20px;
            }
        }

        /* 聚焦可见性 */
        a:focus-visible,
        button:focus-visible,
        summary:focus-visible {
            outline: 3px solid rgba(75, 94, 93, 0.35);
            outline-offset: 2px;
            border-radius: var(--radius-sm);
        }

/* roulang page: category3 */
:root {
  --primary-600: #4B5E5D;
  --primary-500: #5F7473;
  --primary-700: #3A4A49;
  --accent-400: #C8A87C;
  --accent-100: #F3EAE0;
  --bg-50: #F7F5F1;
  --bg-white: #FFFFFF;
  --ink-900: #1F2928;
  --ink-600: #5A6766;
  --ink-400: #8E9A98;
  --line: #E5E0D8;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-full: 999px;
  --shadow-soft-sm: 0 2px 8px rgba(31, 41, 40, 0.05), 0 1px 2px rgba(31, 41, 40, 0.04);
  --shadow-soft-md: 0 12px 32px rgba(31, 41, 40, 0.07);
  --shadow-hover: 0 18px 48px rgba(31, 41, 40, 0.10);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: "PingFang SC", "HarmonyOS Sans SC", "Source Han Sans SC", "Noto Sans CJK SC", "Inter", sans-serif;
  background: var(--bg-50);
  color: var(--ink-900);
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}

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

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

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

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding-left: 1rem;
  padding-right: 1rem;
}

@media (min-width: 640px) {
  .container {
    padding-left: 1.5rem;
    padding-right: 1.5rem;
  }
}

@media (min-width: 1024px) {
  .container {
    padding-left: 2rem;
    padding-right: 2rem;
  }
}

/* ======== Buttons ======== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 44px;
  padding: 0 22px;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 500;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.2s ease-out;
  white-space: nowrap;
}

.btn-primary {
  background: var(--primary-600);
  color: #fff;
}

.btn-primary:hover {
  background: var(--primary-500);
  transform: translateY(-2px);
  box-shadow: var(--shadow-soft-md);
}

.btn-primary .arrow {
  transition: transform 0.2s ease;
}

.btn-primary:hover .arrow {
  transform: translateX(4px);
}

.btn-outline {
  background: transparent;
  border-color: var(--primary-600);
  color: var(--primary-700);
}

.btn-outline:hover {
  border-color: var(--accent-400);
  color: #A9763B;
  background: var(--accent-100);
}

.btn-ghost-light {
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.25);
}

.btn-ghost-light:hover {
  background: rgba(255, 255, 255, 0.2);
}

.btn-white {
  background: #fff;
  color: var(--primary-700);
}

.btn-white:hover {
  background: var(--accent-100);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
}

.btn-sm {
  min-height: 38px;
  padding: 0 16px;
  font-size: 0.82rem;
  border-radius: var(--radius-full);
}

/* ======== Header ======== */
.site-header {
  position: fixed;
  top: 14px;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 0 1rem;
}

@media (min-width: 640px) {
  .site-header {
    padding: 0 1.5rem;
  }
}

@media (min-width: 1024px) {
  .site-header {
    padding: 0 2rem;
  }
}

.header-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(255, 255, 255, 0.75);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-radius: var(--radius-full);
  padding: 8px 20px;
  border: 1px solid rgba(229, 224, 216, 0.6);
  box-shadow: var(--shadow-soft-sm);
  transition: background 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
}

.site-header.scrolled .header-inner {
  background: rgba(255, 255, 255, 0.92);
  box-shadow: var(--shadow-soft-md);
  border-color: rgba(229, 224, 216, 0.8);
}

.brand-logo {
  font-size: 1.12rem;
  font-weight: 700;
  color: var(--ink-900);
  letter-spacing: -0.01em;
  white-space: nowrap;
  flex-shrink: 0;
  transition: color 0.2s ease;
}

.brand-logo:hover {
  color: var(--primary-600);
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 2px;
  margin: 0 8px;
}

.nav-link {
  position: relative;
  display: inline-flex;
  align-items: center;
  padding: 8px 14px;
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--ink-600);
  border-radius: var(--radius-full);
  transition: color 0.2s ease;
}

.nav-link::after {
  content: "";
  position: absolute;
  bottom: 3px;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 1.5px;
  background: var(--primary-600);
  border-radius: 999px;
  transition: width 0.3s cubic-bezier(0.22, 1, 0.36, 1);
}

.nav-link:hover {
  color: var(--primary-600);
}

.nav-link:hover::after {
  width: 55%;
}

.nav-link.active {
  color: var(--primary-700);
  font-weight: 600;
}

.nav-link.active::after {
  width: 55%;
  background: var(--accent-400);
}

.nav-dropdown {
  position: relative;
}

.dropdown-panel {
  position: absolute;
  top: calc(100% + 10px);
  left: 50%;
  transform: translateX(-50%) translateY(6px);
  min-width: 180px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 8px;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.25s ease, transform 0.25s ease, visibility 0.25s;
  box-shadow: var(--shadow-soft-sm);
}

.nav-dropdown:hover .dropdown-panel,
.nav-dropdown:focus-within .dropdown-panel {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}

.dropdown-panel a {
  display: block;
  padding: 10px 14px;
  font-size: 0.85rem;
  color: var(--ink-600);
  border-radius: var(--radius-sm);
  transition: background 0.2s, color 0.2s;
  white-space: nowrap;
}

.dropdown-panel a:hover {
  background: var(--accent-100);
  color: var(--primary-700);
}

.dropdown-panel a.dropdown-active {
  background: var(--accent-100);
  color: var(--primary-700);
  font-weight: 600;
}

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

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 10px;
  border-radius: var(--radius-sm);
  transition: background 0.2s;
}

.nav-toggle:hover {
  background: var(--accent-100);
}

.nav-toggle span {
  width: 20px;
  height: 2px;
  background: var(--ink-900);
  border-radius: 2px;
  transition: transform 0.3s ease, opacity 0.3s;
}

.nav-toggle.open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle.open span:nth-child(2) {
  opacity: 0;
}

.nav-toggle.open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.mobile-menu {
  position: fixed;
  top: 76px;
  left: 16px;
  right: 16px;
  background: rgba(255, 255, 255, 0.98);
  border-radius: var(--radius-md);
  border: 1px solid var(--line);
  padding: 10px;
  box-shadow: var(--shadow-soft-md);
  z-index: 99;
  opacity: 0;
  transform: translateY(-12px);
  pointer-events: none;
  transition: opacity 0.3s ease, transform 0.3s ease;
}

.mobile-menu.open {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.mobile-nav-list a {
  display: block;
  padding: 0 16px;
  font-size: 0.93rem;
  font-weight: 500;
  color: var(--ink-600);
  border-radius: var(--radius-sm);
  line-height: 48px;
  border-bottom: 1px solid rgba(229, 224, 216, 0.6);
  transition: background 0.2s, color 0.2s;
}

.mobile-nav-list a:last-child {
  border-bottom: none;
}

.mobile-nav-list a:hover {
  background: var(--accent-100);
  color: var(--primary-700);
}

.mobile-nav-list a.active {
  color: var(--primary-700);
  font-weight: 600;
  background: rgba(75, 94, 93, 0.06);
}

@media (max-width: 991px) {
  .nav-list,
  .header-actions {
    display: none;
  }

  .nav-toggle {
    display: flex;
  }
}

/* ======== Hero ======== */
.page-hero {
  position: relative;
  padding: 150px 0 70px;
  background: var(--bg-50);
  overflow: hidden;
}

.page-hero::before {
  content: "";
  position: absolute;
  top: -80px;
  right: -40px;
  width: 420px;
  height: 420px;
  border: 1px solid rgba(75, 94, 93, 0.07);
  border-radius: 50%;
  box-shadow: 0 0 0 60px rgba(75, 94, 93, 0.02), 0 0 0 120px rgba(75, 94, 93, 0.015);
  pointer-events: none;
}

.page-hero::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: -60px;
  transform: translateX(-50%);
  width: 80%;
  height: 60%;
  background-image: url("/assets/images/backpic/back-1.png");
  background-size: cover;
  background-position: center;
  opacity: 0.04;
  border-radius: var(--radius-lg);
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 780px;
  margin: 0 auto;
}

.breadcrumb {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 8px;
  font-size: 0.78rem;
  color: var(--ink-400);
  margin-bottom: 20px;
}

.breadcrumb a {
  color: var(--ink-400);
  transition: color 0.2s;
}

.breadcrumb a:hover {
  color: var(--primary-600);
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--primary-600);
  background: var(--accent-100);
  padding: 6px 16px;
  border-radius: var(--radius-full);
  letter-spacing: 0.02em;
  margin-bottom: 18px;
}

.hero-title {
  font-size: 1.9rem;
  font-weight: 650;
  line-height: 1.25;
  letter-spacing: -0.02em;
  color: var(--ink-900);
}

.hero-sub {
  font-size: 0.95rem;
  color: var(--ink-600);
  max-width: 620px;
  margin: 16px auto 32px;
  line-height: 1.8;
}

.hero-actions {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}

.hero-stats {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 32px;
  margin-top: 44px;
  padding-top: 28px;
  border-top: 1px solid var(--line);
}

.stat-item {
  text-align: center;
}

.stat-num {
  font-family: "Inter", ui-sans-serif, system-ui, sans-serif;
  font-size: 1.6rem;
  font-weight: 600;
  color: var(--primary-700);
  line-height: 1.2;
}

.stat-label {
  font-size: 0.76rem;
  color: var(--ink-400);
  margin-top: 4px;
}

@media (min-width: 1024px) {
  .page-hero {
    padding: 170px 0 80px;
  }

  .hero-title {
    font-size: 3rem;
  }

  .hero-sub {
    font-size: 1rem;
  }
}

/* ======== Topic Tabs ======== */
.topic-tabs-section {
  position: relative;
  z-index: 5;
  margin-top: -28px;
  padding-bottom: 20px;
}

.topic-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 16px 20px;
  box-shadow: var(--shadow-soft-sm);
}

.topic-tab {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 8px 18px;
  border-radius: var(--radius-full);
  border: 1px solid transparent;
  background: transparent;
  color: var(--ink-600);
  font-size: 0.84rem;
  font-weight: 500;
  transition: all 0.2s ease;
}

.topic-tab:hover {
  border-color: var(--primary-500);
  color: var(--primary-700);
  background: var(--accent-100);
}

.topic-tab .dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent-400);
  flex-shrink: 0;
}

/* ======== Section ======== */
.section {
  padding: 64px 0;
}

.section-header {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 44px;
}

.section-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.76rem;
  font-weight: 600;
  color: var(--primary-600);
  background: var(--accent-100);
  padding: 5px 14px;
  border-radius: var(--radius-full);
  letter-spacing: 0.03em;
}

.section-title {
  font-size: 1.4rem;
  font-weight: 600;
  line-height: 1.3;
  color: var(--ink-900);
  margin-top: 14px;
}

.section-desc {
  margin-top: 12px;
  font-size: 0.92rem;
  color: var(--ink-600);
}

@media (min-width: 1024px) {
  .section {
    padding: 80px 0;
  }

  .section-title {
    font-size: 2rem;
  }
}

/* ======== FAQ ======== */
.faq-section {
  background: var(--bg-50);
}

.faq-wrap {
  max-width: 860px;
  margin: 0 auto;
}

.faq-group-title {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--ink-900);
  margin: 44px 0 16px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.faq-group-title:first-child {
  margin-top: 0;
}

.faq-group-title::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--line);
}

.faq-item {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  margin-bottom: 12px;
  overflow: hidden;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.faq-item:hover {
  border-color: rgba(75, 94, 93, 0.3);
}

.faq-item.open {
  border-color: rgba(75, 94, 93, 0.35);
  box-shadow: var(--shadow-soft-sm);
}

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  width: 100%;
  padding: 18px 22px;
  font-size: 0.92rem;
  font-weight: 500;
  text-align: left;
  color: var(--ink-900);
  line-height: 1.6;
}

.faq-icon {
  flex-shrink: 0;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  border: 1px solid var(--line);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 15px;
  font-weight: 400;
  color: var(--primary-600);
  transition: transform 0.3s ease, background 0.3s ease, color 0.3s, border-color 0.3s ease;
}

.faq-item.open .faq-icon {
  transform: rotate(45deg);
  background: var(--primary-600);
  color: #fff;
  border-color: var(--primary-600);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s cubic-bezier(0.22, 1, 0.36, 1);
}

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

.faq-answer-inner {
  padding: 0 22px 20px;
  font-size: 0.88rem;
  color: var(--ink-600);
  line-height: 1.8;
}

/* ======== Scene ======== */
.scene-section {
  background: #fff;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.scene-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 44px;
  align-items: center;
}

.scene-content .section-title {
  text-align: left;
}

.scene-content .section-desc {
  text-align: left;
}

.scene-content .section-eyebrow {
  text-align: left;
}

.scene-list {
  margin-top: 26px;
  display: flex;
  flex-direction: column;
}

.scene-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 16px 8px;
  border-bottom: 1px solid var(--line);
  border-radius: var(--radius-sm);
  transition: background 0.2s ease, padding 0.2s ease;
}

.scene-item:last-child {
  border-bottom: none;
}

.scene-item:hover {
  background: var(--accent-100);
  padding-left: 16px;
  padding-right: 16px;
}

.scene-num {
  font-family: "Inter", ui-sans-serif, system-ui, sans-serif;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--accent-400);
  min-width: 34px;
  letter-spacing: 0.02em;
  padding-top: 4px;
}

.scene-item h3 {
  font-size: 0.94rem;
  font-weight: 600;
  color: var(--ink-900);
}

.scene-item p {
  font-size: 0.84rem;
  color: var(--ink-600);
  margin-top: 3px;
  line-height: 1.7;
}

.scene-image-wrap {
  position: relative;
}

.scene-image {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-soft-md);
  position: relative;
}

.scene-image img {
  width: 100%;
  height: 100%;
  min-height: 300px;
  object-fit: cover;
}

.scene-float-card {
  position: absolute;
  bottom: 20px;
  left: -16px;
  background: #fff;
  border-radius: var(--radius-md);
  padding: 14px 18px;
  box-shadow: var(--shadow-hover);
  border: 1px solid var(--line);
  display: flex;
  align-items: center;
  gap: 12px;
}

.float-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent-400);
  flex-shrink: 0;
}

.scene-float-card strong {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--ink-900);
}

.scene-float-card p {
  font-size: 0.75rem;
  color: var(--ink-600);
  line-height: 1.4;
}

@media (min-width: 1024px) {
  .scene-grid {
    grid-template-columns: 5fr 6fr;
    gap: 64px;
  }

  .scene-image img {
    min-height: 380px;
  }
}

@media (max-width: 767px) {
  .scene-float-card {
    left: 12px;
    right: 12px;
    bottom: 12px;
  }
}

/* ======== Steps ======== */
.steps-section {
  background: var(--bg-50);
}

.steps-list {
  max-width: 900px;
  margin: 0 auto;
  border-top: 1px solid var(--line);
}

.step-row {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 26px 12px;
  border-bottom: 1px solid var(--line);
  border-radius: var(--radius-md);
  transition: background 0.2s ease, padding-left 0.2s ease;
}

.step-row:hover {
  background: var(--accent-100);
  padding-left: 24px;
}

.step-index {
  font-family: "Inter", ui-sans-serif, system-ui, sans-serif;
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--accent-400);
  width: 52px;
  flex-shrink: 0;
  letter-spacing: -0.02em;
}

.step-content {
  flex: 1;
}

.step-content h3 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--ink-900);
}

.step-content p {
  font-size: 0.84rem;
  color: var(--ink-600);
  margin-top: 4px;
  line-height: 1.7;
}

.step-arrow {
  color: var(--primary-600);
  font-size: 1.05rem;
  transition: transform 0.2s ease;
  flex-shrink: 0;
}

.step-row:hover .step-arrow {
  transform: translateX(5px);
}

/* ======== CTA ======== */
.cta-section {
  padding: 60px 0;
}

.cta-box {
  position: relative;
  background: radial-gradient(circle at 20% 20%, var(--primary-500) 0%, var(--primary-700) 100%);
  border-radius: var(--radius-lg);
  padding: 52px 28px;
  text-align: center;
  color: #fff;
  overflow: hidden;
}

.cta-orb {
  position: absolute;
  top: -70px;
  right: -50px;
  width: 240px;
  height: 240px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 50%;
  box-shadow: 0 0 0 40px rgba(255, 255, 255, 0.04);
  pointer-events: none;
}

.cta-box h2 {
  position: relative;
  font-size: 1.4rem;
  font-weight: 600;
  line-height: 1.35;
}

.cta-box p {
  position: relative;
  color: rgba(255, 255, 255, 0.82);
  font-size: 0.92rem;
  margin: 14px 0 28px;
  max-width: 560px;
  margin-left: auto;
  margin-right: auto;
}

.cta-actions {
  position: relative;
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}

.cta-note {
  position: relative;
  font-size: 0.75rem;
  color: rgba(255, 255, 255, 0.5);
  margin-top: 20px;
}

@media (min-width: 1024px) {
  .cta-box {
    padding: 64px 48px;
  }

  .cta-box h2 {
    font-size: 1.9rem;
  }
}

@media (max-width: 640px) {
  .cta-actions .btn {
    width: 100%;
    max-width: 320px;
  }
}

/* ======== Footer ======== */
.site-footer {
  background: var(--ink-900);
  color: rgba(255, 255, 255, 0.7);
  padding: 56px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 36px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-brand h4 {
  color: #fff;
  font-size: 1.02rem;
  font-weight: 600;
  margin-bottom: 12px;
}

.footer-brand p {
  font-size: 0.84rem;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.55);
  max-width: 280px;
}

.footer-col h5 {
  color: #fff;
  font-size: 0.88rem;
  font-weight: 600;
  margin-bottom: 14px;
}

.footer-col a {
  display: block;
  font-size: 0.84rem;
  color: rgba(255, 255, 255, 0.6);
  padding: 5px 0;
  transition: color 0.2s;
  line-height: 1.7;
}

.footer-col a:hover {
  color: var(--accent-400);
}

.footer-copyright {
  padding: 20px 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-size: 0.76rem;
  color: rgba(255, 255, 255, 0.4);
}

.footer-copyright a {
  color: rgba(255, 255, 255, 0.5);
  transition: color 0.2s;
}

.footer-copyright a:hover {
  color: var(--accent-400);
}

@media (min-width: 768px) {
  .footer-grid {
    grid-template-columns: 2fr 1fr 1fr 1.2fr;
    gap: 32px;
  }

  .footer-copyright {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
  }
}

/* ======== Reveal ======== */
.reveal {
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 0.5s cubic-bezier(0.22, 1, 0.36, 1), transform 0.5s cubic-bezier(0.22, 1, 0.36, 1);
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 768px) {
  .reveal {
    opacity: 1;
    transform: none;
  }
}