/* roulang page: index */
:root {
  --bg-primary: #0B1310;
  --bg-secondary: #111C18;
  --bg-card: #16231E;
  --accent-gold: #C9A96A;
  --accent-green: #8A9B8E;
  --text-primary: #E8E6E0;
  --text-muted: #8C948D;
  --border-gold: rgba(201,169,106,0.18);
  --border-gold-hover: rgba(201,169,106,0.5);
  --success: #4CAF7D;
  --warning: #D4A72C;
  --error: #C05A5A;
  --radius-card: 12px;
  --radius-btn: 999px;
  --radius-img: 8px;
  --shadow-card: 0 2px 12px rgba(0,0,0,0.25);
  --shadow-hover: 0 8px 30px rgba(0,0,0,0.45), 0 0 0 1px rgba(201,169,106,0.25);
  --shadow-cta: 0 0 20px rgba(201,169,106,0.15);
  --transition: cubic-bezier(0.4, 0, 0.2, 1) 0.3s;
  --container-max: 1200px;
  --space-section: 96px;
  --space-section-mobile: 56px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: "Noto Sans SC", "Source Han Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-size: 16px;
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

a:hover {
  color: #dcc28a;
}

ul, ol {
  list-style: none;
}

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

input, textarea, select {
  font-family: inherit;
}

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

.section {
  padding: var(--space-section) 0;
}

.section-label {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent-gold);
  margin-bottom: 16px;
}

.section-label::before {
  content: "";
  display: inline-block;
  width: 28px;
  height: 1px;
  background: var(--accent-gold);
  opacity: 0.6;
}

.section-title {
  font-family: "Noto Serif SC", "Source Han Serif SC", "思源宋体", serif;
  font-size: 32px;
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: 16px;
}

.section-subtitle {
  color: var(--text-muted);
  font-size: 15px;
  max-width: 640px;
  margin-bottom: 40px;
}

/* ===== Header / Nav ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(11, 19, 16, 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-gold);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

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

.logo-icon {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #C9A96A 0%, #E8D5A4 50%, #A9863F 100%);
  border-radius: 8px;
  font-family: "Noto Serif SC", serif;
  font-weight: 700;
  font-size: 18px;
  color: #0B1310;
}

.logo-text {
  font-family: "Noto Serif SC", "Source Han Serif SC", serif;
  font-size: 16px;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--text-primary);
  white-space: nowrap;
}

.logo-text span {
  color: var(--accent-gold);
}

.nav-tabs {
  display: flex;
  align-items: center;
  background: var(--bg-secondary);
  border-radius: var(--radius-btn);
  padding: 4px;
  gap: 2px;
  border: 1px solid var(--border-gold);
}

.nav-tab {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 8px 18px;
  border-radius: var(--radius-btn);
  font-size: 14px;
  font-weight: 500;
  color: var(--text-muted);
  transition: all var(--transition);
  white-space: nowrap;
}

.nav-tab:hover {
  color: var(--text-primary);
  background: rgba(201,169,106,0.08);
}

.nav-tab.active {
  background: var(--accent-gold);
  color: #111;
  font-weight: 600;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-shrink: 0;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 24px;
  border-radius: var(--radius-btn);
  font-size: 14px;
  font-weight: 600;
  line-height: 1.6;
  transition: all var(--transition);
  cursor: pointer;
  text-align: center;
}

.btn:focus-visible {
  outline: 2px solid var(--accent-gold);
  outline-offset: 2px;
}

.btn-primary {
  background: var(--accent-gold);
  color: #111;
  box-shadow: var(--shadow-cta);
}

.btn-primary:hover {
  background: #dcc28a;
  transform: translateY(-2px);
  color: #111;
  box-shadow: 0 6px 28px rgba(201,169,106,0.28);
}

.btn-primary:active {
  transform: translateY(0);
}

.btn-outline {
  background: transparent;
  border: 1px solid var(--accent-gold);
  color: var(--accent-gold);
}

.btn-outline:hover {
  background: rgba(201,169,106,0.1);
  color: #dcc28a;
  transform: translateY(-2px);
}

.btn-outline:active {
  transform: translateY(0);
}

.btn-lg {
  padding: 14px 36px;
  font-size: 15px;
}

.btn-sm {
  padding: 6px 16px;
  font-size: 13px;
}

/* Mobile menu button */
.mobile-menu-btn {
  display: none;
  width: 42px;
  height: 42px;
  border-radius: 8px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border-gold);
  background: var(--bg-secondary);
  color: var(--text-primary);
  font-size: 20px;
}

.mobile-drawer {
  display: none;
  position: fixed;
  top: 0;
  right: -320px;
  width: 300px;
  height: 100vh;
  background: var(--bg-secondary);
  border-left: 1px solid var(--border-gold);
  z-index: 200;
  padding: 80px 32px 40px;
  transition: right 0.35s var(--transition);
  flex-direction: column;
  gap: 8px;
}

.mobile-drawer.open {
  right: 0;
}

.mobile-drawer a {
  display: block;
  padding: 12px 0;
  font-size: 16px;
  border-bottom: 1px solid rgba(255,255,255,0.05);
}

.mobile-drawer .btn {
  margin-top: 20px;
}

.drawer-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0,0,0,0.5);
  z-index: 150;
}

.drawer-overlay.open {
  display: block;
}

/* ===== Hero ===== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 80px 0 60px;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: url('/assets/images/backpic/back-1.png');
  background-size: cover;
  background-position: center;
  opacity: 0.2;
  z-index: 0;
}

.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 600px 400px at 70% 30%, rgba(201,169,106,0.08), transparent 70%),
              linear-gradient(180deg, rgba(11,19,16,0.7) 0%, var(--bg-primary) 100%);
  z-index: 1;
}

.hero-inner {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 60px;
  align-items: center;
  width: 100%;
}

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

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  border-radius: var(--radius-btn);
  background: rgba(201,169,106,0.12);
  border: 1px solid var(--border-gold);
  color: var(--accent-gold);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.05em;
  margin-bottom: 24px;
}

.hero-badge::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--success);
  box-shadow: 0 0 8px rgba(76,175,125,0.8);
}

.hero h1 {
  font-family: "Noto Serif SC", "Source Han Serif SC", serif;
  font-size: 44px;
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: 20px;
  color: var(--text-primary);
}

.hero h1 em {
  font-style: normal;
  color: var(--accent-gold);
}

.hero-desc {
  font-size: 16px;
  color: var(--text-muted);
  line-height: 1.9;
  margin-bottom: 36px;
  max-width: 480px;
}

.hero-buttons {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 44px;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  border-top: 1px solid var(--border-gold);
  padding-top: 28px;
}

.hero-stat {
  text-align: left;
}

.hero-stat-value {
  font-family: "Noto Serif SC", serif;
  font-size: 28px;
  font-weight: 700;
  color: var(--accent-gold);
  line-height: 1.2;
}

.hero-stat-label {
  font-size: 13px;
  color: var(--text-muted);
  margin-top: 4px;
}

/* Hero phone mockup */
.hero-visual {
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
}

.phone-mockup {
  width: 280px;
  height: 560px;
  border-radius: 36px;
  background: var(--bg-card);
  border: 1px solid var(--border-gold);
  box-shadow: var(--shadow-hover);
  overflow: hidden;
  position: relative;
  display: flex;
  flex-direction: column;
}

.phone-mockup .phone-screen {
  flex: 1;
  background-image: url('/assets/images/backpic/back-2.webp');
  background-size: cover;
  background-position: center;
  position: relative;
}

.phone-mockup .phone-screen::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(11,19,16,0.3) 0%, rgba(11,19,16,0.85) 100%);
  z-index: 1;
}

.phone-content {
  position: relative;
  z-index: 2;
  height: 100%;
  display: flex;
  flex-direction: column;
  padding: 32px 20px 20px;
}

.phone-top-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 32px;
}

.phone-top-bar .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--success);
  box-shadow: 0 0 10px rgba(76,175,125,0.6);
}

.phone-top-bar span {
  font-size: 12px;
  color: var(--text-muted);
  letter-spacing: 0.08em;
}

.phone-title {
  font-family: "Noto Serif SC", serif;
  font-size: 26px;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.4;
  margin-bottom: 8px;
}

.phone-subtitle {
  font-size: 14px;
  color: var(--accent-green);
  margin-bottom: 28px;
}

.phone-chip-row {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 28px;
}

.chip {
  display: inline-flex;
  align-items: center;
  padding: 5px 14px;
  border-radius: var(--radius-btn);
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.12);
  font-size: 12px;
  color: var(--text-primary);
  backdrop-filter: blur(6px);
}

.chip-gold {
  background: rgba(201,169,106,0.18);
  border-color: var(--border-gold);
  color: var(--accent-gold);
}

.phone-card-stack {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: auto;
}

.phone-card-item {
  background: rgba(255,255,255,0.06);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 12px;
  padding: 14px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.phone-card-item .thumb {
  width: 44px;
  height: 44px;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--accent-gold), #A9863F);
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
}

.phone-card-item .info {
  flex: 1;
}

.phone-card-item .info .t {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 2px;
}

.phone-card-item .info .d {
  font-size: 11px;
  color: var(--text-muted);
}

.phone-bottom-nav {
  display: flex;
  justify-content: space-around;
  margin-top: 18px;
  padding-top: 14px;
  border-top: 1px solid rgba(255,255,255,0.08);
}

.phone-bottom-nav i {
  font-size: 14px;
  color: var(--text-muted);
}

/* ===== Chip Anchor Strip ===== */
.chip-strip {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-gold);
  border-bottom: 1px solid var(--border-gold);
  padding: 20px 0;
}

.chip-strip .container {
  display: flex;
  gap: 12px;
  overflow-x: auto;
  scrollbar-width: none;
  -ms-overflow-style: none;
}

.chip-strip .container::-webkit-scrollbar {
  display: none;
}

.chip-anchor {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  padding: 10px 24px;
  border-radius: var(--radius-btn);
  background: var(--bg-card);
  border: 1px solid var(--border-gold);
  color: var(--text-primary);
  font-size: 14px;
  font-weight: 500;
  transition: all var(--transition);
  white-space: nowrap;
}

.chip-anchor:hover {
  border-color: var(--accent-gold);
  color: var(--accent-gold);
  background: rgba(201,169,106,0.08);
}

.chip-anchor::before {
  content: "";
  width: 5px;
  height: 5px;
  background: var(--accent-gold);
  border-radius: 50%;
  margin-right: 10px;
  opacity: 0.6;
}

/* ===== Featured Cards ===== */
.featured-section {
  position: relative;
}

.featured-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.featured-card {
  position: relative;
  border-radius: var(--radius-card);
  overflow: hidden;
  min-height: 420px;
  display: flex;
  align-items: flex-end;
  border: 1px solid var(--border-gold);
  transition: all 0.35s var(--transition);
  box-shadow: var(--shadow-card);
}

.featured-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-color: var(--border-gold-hover);
}

.featured-card .card-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  transition: transform 0.5s var(--transition);
  z-index: 0;
}

.featured-card:hover .card-bg {
  transform: scale(1.03);
}

.featured-card .card-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(11,19,16,0.05) 0%, rgba(11,19,16,0.6) 50%, rgba(11,19,16,0.95) 100%);
}

.featured-card .card-content {
  position: relative;
  z-index: 2;
  padding: 24px;
  width: 100%;
}

.featured-card .card-tag {
  display: inline-block;
  font-size: 12px;
  color: var(--accent-gold);
  background: rgba(201,169,106,0.18);
  border: 1px solid var(--border-gold);
  padding: 3px 12px;
  border-radius: var(--radius-btn);
  margin-bottom: 12px;
  backdrop-filter: blur(8px);
}

.featured-card h3 {
  font-family: "Noto Serif SC", serif;
  font-size: 18px;
  font-weight: 600;
  color: var(--text-primary);
  line-height: 1.4;
  margin-bottom: 8px;
}

.featured-card p {
  font-size: 13px;
  color: rgba(232,230,224,0.75);
  margin-bottom: 16px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.featured-card .card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.featured-card .card-cat {
  font-size: 12px;
  color: var(--accent-green);
}

.featured-card .card-arrow {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  border: 1px solid var(--border-gold);
  color: var(--accent-gold);
  font-size: 14px;
  transition: all var(--transition);
}

.featured-card:hover .card-arrow {
  background: var(--accent-gold);
  color: #111;
}

/* ===== List Section ===== */
.list-section {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-gold);
  border-bottom: 1px solid var(--border-gold);
}

.list-layout {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 60px;
  align-items: start;
}

.list-items {
  display: flex;
  flex-direction: column;
}

.list-item {
  display: flex;
  align-items: flex-start;
  gap: 20px;
  padding: 28px 0;
  border-bottom: 1px solid rgba(255,255,255,0.06);
  transition: background 0.3s ease;
}

.list-item:hover {
  background: rgba(255,255,255,0.02);
}

.list-item:first-child {
  padding-top: 8px;
}

.list-number {
  font-family: "Noto Serif SC", serif;
  font-size: 28px;
  font-weight: 700;
  color: var(--accent-gold);
  line-height: 1;
  opacity: 0.8;
  min-width: 52px;
}

.list-item-body {
  flex: 1;
}

.list-item-body h3 {
  font-family: "Noto Serif SC", serif;
  font-size: 17px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 6px;
  transition: color var(--transition);
}

.list-item:hover .list-item-body h3 {
  color: var(--accent-gold);
}

.list-item-body p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 10px;
}

.list-item-meta {
  display: flex;
  align-items: center;
  gap: 10px;
}

.tag {
  display: inline-flex;
  align-items: center;
  padding: 3px 12px;
  border-radius: var(--radius-btn);
  font-size: 11px;
  font-weight: 500;
  background: rgba(201,169,106,0.1);
  color: var(--accent-gold);
  border: 1px solid var(--border-gold);
}

/* Sticky card */
.sticky-card {
  position: sticky;
  top: 96px;
  background: var(--bg-card);
  border: 1px solid var(--border-gold);
  border-radius: var(--radius-card);
  padding: 36px;
  background-image: url('/assets/images/coverpic/cover-3.png');
  background-size: cover;
  background-position: center;
  position: relative;
  overflow: hidden;
}

.sticky-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(11,19,16,0.92) 0%, rgba(11,19,16,0.75) 100%);
}

.sticky-card > * {
  position: relative;
  z-index: 1;
}

.sticky-card h3 {
  font-family: "Noto Serif SC", serif;
  font-size: 24px;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.4;
  margin-bottom: 16px;
}

.sticky-card p {
  color: var(--text-muted);
  font-size: 14px;
  line-height: 1.8;
  margin-bottom: 24px;
}

.sticky-stat-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin-bottom: 28px;
}

.sticky-stat {
  background: rgba(255,255,255,0.05);
  border-radius: 10px;
  padding: 14px;
  border: 1px solid rgba(255,255,255,0.04);
}

.sticky-stat .num {
  font-family: "Noto Serif SC", serif;
  font-size: 22px;
  font-weight: 700;
  color: var(--accent-gold);
}

.sticky-stat .lbl {
  font-size: 12px;
  color: var(--text-muted);
}

/* ===== Testimonials ===== */
.testimonial-section {
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border-gold);
}

.testimonial-scroll {
  display: flex;
  gap: 20px;
  overflow-x: auto;
  padding-bottom: 16px;
  scrollbar-width: none;
  -ms-overflow-style: none;
  cursor: grab;
}

.testimonial-scroll::-webkit-scrollbar {
  display: none;
}

.testimonial-card {
  flex: 0 0 320px;
  background: var(--bg-card);
  border: 1px solid var(--border-gold);
  border-left: 3px solid var(--accent-gold);
  border-radius: var(--radius-card);
  padding: 24px;
  transition: all var(--transition);
}

.testimonial-card:hover {
  border-color: var(--border-gold-hover);
  transform: translateY(-2px);
}

.testimonial-card .quote {
  font-size: 14px;
  color: var(--text-primary);
  line-height: 1.8;
  margin-bottom: 18px;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.testimonial-card .author {
  display: flex;
  align-items: center;
  gap: 12px;
}

.testimonial-card .avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: 600;
  color: #111;
  background: linear-gradient(135deg, #C9A96A, #E8D5A4);
}

.testimonial-card .author-info {
  font-size: 13px;
}

.testimonial-card .author-info .name {
  color: var(--text-primary);
  font-weight: 500;
}

.testimonial-card .author-info .time {
  color: var(--text-muted);
  font-size: 12px;
}

/* ===== News/CMS Section ===== */
.news-section {
  background: var(--bg-primary);
}

.news-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: 40px;
  flex-wrap: wrap;
  gap: 16px;
}

.news-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.news-card {
  display: block;
  background: var(--bg-card);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: var(--radius-card);
  padding: 28px;
  transition: all var(--transition);
}

.news-card:hover {
  border-color: var(--border-gold-hover);
  box-shadow: var(--shadow-hover);
  transform: translateY(-3px);
}

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

.news-card .news-meta .tag {
  font-size: 11px;
}

.news-card .news-meta time {
  font-size: 12px;
  color: var(--text-muted);
}

.news-card h3 {
  font-family: "Noto Serif SC", serif;
  font-size: 18px;
  font-weight: 600;
  color: var(--text-primary);
  line-height: 1.4;
  margin-bottom: 10px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  transition: color var(--transition);
}

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

.news-card p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.7;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 16px;
}

.news-card .read-more {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: var(--accent-gold);
  font-weight: 500;
}

.news-card .read-more::after {
  content: "→";
  transition: transform var(--transition);
}

.news-card:hover .read-more::after {
  transform: translateX(4px);
}

.empty-state {
  grid-column: 1 / -1;
  text-align: center;
  padding: 60px 20px;
  background: var(--bg-card);
  border: 1px dashed var(--border-gold);
  border-radius: var(--radius-card);
}

.empty-state .empty-icon {
  font-size: 32px;
  margin-bottom: 16px;
  color: var(--accent-gold);
  opacity: 0.6;
}

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

/* ===== FAQ ===== */
.faq-section {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-gold);
  border-bottom: 1px solid var(--border-gold);
}

.faq-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  max-width: 840px;
}

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

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

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 22px 28px;
  cursor: pointer;
  font-size: 16px;
  font-weight: 600;
  color: var(--text-primary);
  transition: color var(--transition);
  width: 100%;
  text-align: left;
}

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

.faq-icon {
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  border: 1px solid var(--border-gold);
  color: var(--accent-gold);
  font-size: 18px;
  flex-shrink: 0;
  transition: all 0.3s ease;
}

.faq-item.active .faq-icon {
  transform: rotate(45deg);
  background: rgba(201,169,106,0.1);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s var(--transition);
}

.faq-answer-inner {
  padding: 0 28px 24px;
  color: var(--text-muted);
  font-size: 14px;
  line-height: 1.8;
}

.faq-item.active .faq-answer {
  max-height: 300px;
}

/* ===== CTA ===== */
.cta-section {
  position: relative;
  padding: 100px 0;
  background-color: var(--bg-primary);
  overflow: hidden;
}

.cta-section::before {
  content: "";
  position: absolute;
  inset: 0;
  background: url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
  opacity: 0.15;
}

.cta-section::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at center, rgba(201,169,106,0.1) 0%, transparent 60%);
}

.cta-content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 680px;
  margin: 0 auto;
}

.cta-content h2 {
  font-family: "Noto Serif SC", serif;
  font-size: 32px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 16px;
  line-height: 1.4;
}

.cta-content p {
  color: var(--text-muted);
  font-size: 16px;
  margin-bottom: 36px;
  line-height: 1.8;
}

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

/* ===== Footer ===== */
.site-footer {
  background: #080f0d;
  border-top: 1px solid var(--border-gold);
  padding: 64px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr 1fr;
  gap: 48px;
  padding-bottom: 48px;
}

.footer-brand .logo-text {
  font-size: 18px;
  margin-bottom: 16px;
  display: block;
}

.footer-brand p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.8;
  margin-bottom: 20px;
}

.footer-col-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
  letter-spacing: 0.08em;
  margin-bottom: 20px;
}

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

.footer-links a {
  font-size: 14px;
  color: var(--text-muted);
  transition: all var(--transition);
}

.footer-links a:hover {
  color: var(--accent-gold);
  padding-left: 4px;
}

.footer-contact p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.8;
  margin-bottom: 12px;
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.04);
  padding: 20px 0;
  text-align: center;
}

.footer-bottom p {
  font-size: 13px;
  color: var(--text-muted);
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .nav-tabs {
    display: none;
  }
  
  .header-actions .btn {
    padding: 8px 18px;
    font-size: 13px;
  }
  
  .mobile-menu-btn {
    display: flex;
  }
  
  .hero-inner {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  
  .hero-content {
    max-width: 100%;
  }
  
  .hero-visual {
    display: none;
  }
  
  .featured-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .list-layout {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  
  .sticky-card {
    position: static;
  }
  
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
}

@media (max-width: 768px) {
  .section {
    padding: var(--space-section-mobile) 0;
  }
  
  .container {
    padding-left: 16px;
    padding-right: 16px;
  }
  
  .section-title {
    font-size: 24px;
  }
  
  .header-inner {
    height: 60px;
  }
  
  .logo-text {
    font-size: 14px;
  }
  
  .logo-icon {
    width: 30px;
    height: 30px;
    font-size: 15px;
  }
  
  .header-actions .btn {
    display: none;
  }
  
  .hero {
    padding: 60px 0 40px;
    min-height: auto;
  }
  
  .hero h1 {
    font-size: 28px;
  }
  
  .hero-desc {
    font-size: 15px;
  }
  
  .hero-stats {
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
  }
  
  .hero-stat-value {
    font-size: 22px;
  }
  
  .featured-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  
  .featured-card {
    min-height: 320px;
  }
  
  .news-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  
  .news-card {
    padding: 20px;
  }
  
  .testimonial-card {
    flex-basis: 280px;
  }
  
  .cta-section {
    padding: 64px 0;
  }
  
  .cta-content h2 {
    font-size: 24px;
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
    padding-bottom: 32px;
  }
  
  .mobile-drawer {
    display: flex;
  }
  
  .list-item {
    gap: 14px;
    padding: 22px 0;
  }
  
  .list-number {
    font-size: 22px;
    min-width: 38px;
  }
  
  .list-layout {
    gap: 32px;
  }
}

@media (max-width: 520px) {
  .hero-buttons {
    flex-direction: column;
  }
  
  .hero-buttons .btn {
    width: 100%;
  }
  
  .hero-stats {
    gap: 8px;
  }
  
  .hero-stat-value {
    font-size: 18px;
  }
  
  .hero-stat-label {
    font-size: 12px;
  }
  
  .cta-buttons {
    flex-direction: column;
  }
  
  .cta-buttons .btn {
    width: 100%;
  }
  
  .sticky-stat-grid {
    grid-template-columns: 1fr 1fr;
  }
}

/* roulang page: category1 */
:root{
  --bg-primary:#0B1310;
  --bg-secondary:#111C18;
  --bg-card:#16231E;
  --accent-primary:#C9A96A;
  --accent-secondary:#8A9B8E;
  --text-primary:#E8E6E0;
  --text-muted:#8C948D;
  --border-primary:rgba(201,169,106,0.18);
  --border-hover:rgba(201,169,106,0.5);
  --success:#4CAF7D;
  --warning:#D4A72C;
  --error:#C05A5A;
  --radius-card:12px;
  --radius-btn:999px;
  --radius-img:8px;
  --shadow-card:0 2px 12px rgba(0,0,0,0.25);
  --shadow-hover:0 8px 30px rgba(0,0,0,0.45),0 0 0 1px rgba(201,169,106,0.25);
  --shadow-glow:0 0 20px rgba(201,169,106,0.15);
  --space-section:96px;
  --space-section-mobile:56px;
  --font-title:"Noto Serif SC","Source Han Serif SC","思源宋体",serif;
  --font-body:"Noto Sans SC","Source Han Sans SC","思源黑体",sans-serif;
  --transition:0.25s cubic-bezier(0.4,0,0.2,1);
}
*,*::before,*::after{
  box-sizing:border-box;margin:0;padding:0;
}
html{
  scroll-behavior:smooth;
}
body{
  font-family:var(--font-body);
  background:var(--bg-primary);
  color:var(--text-primary);
  line-height:1.8;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
}
img{
  max-width:100%;
  display:block;
}
a{
  color:inherit;
  text-decoration:none;
}
button{
  font-family:inherit;
  border:none;
  background:none;
  cursor:pointer;
  color:inherit;
}
ul,ol{
  list-style:none;
}
.container{
  max-width:1200px;
  margin:0 auto;
  padding:0 24px;
}
section{
  position:relative;
}
/* 按钮 */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:12px 28px;
  border-radius:var(--radius-btn);
  font-size:15px;
  font-weight:600;
  letter-spacing:0.02em;
  transition:var(--transition);
  white-space:nowrap;
}
.btn-primary{
  background:var(--accent-primary);
  color:#111;
  box-shadow:var(--shadow-glow);
}
.btn-primary:hover{
  background:#D9BC7A;
  transform:translateY(-2px);
  box-shadow:0 0 28px rgba(201,169,106,0.25);
}
.btn-primary:active{
  transform:translateY(0);
  box-shadow:0 0 12px rgba(201,169,106,0.15);
}
.btn-outline{
  background:transparent;
  border:1px solid var(--accent-primary);
  color:var(--accent-primary);
}
.btn-outline:hover{
  background:rgba(201,169,106,0.1);
  transform:translateY(-2px);
}
.btn-outline:active{
  transform:translateY(0);
}
.btn:focus-visible{
  outline:2px solid var(--accent-primary);
  outline-offset:2px;
}
.btn-lg{
  padding:14px 36px;
  font-size:16px;
}
/* 标签 chip */
.chip{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:4px 14px;
  border-radius:999px;
  font-size:13px;
  font-weight:500;
  border:1px solid var(--border-primary);
  background:rgba(201,169,106,0.08);
  color:var(--accent-primary);
  letter-spacing:0.03em;
}
/* Header */
.site-header{
  position:sticky;
  top:0;
  z-index:100;
  background:rgba(11,19,16,0.92);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--border-primary);
}
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  height:78px;
}
.logo{
  display:flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
}
.logo-mark{
  width:40px;
  height:40px;
  border-radius:10px;
  background:linear-gradient(135deg,var(--accent-primary),#A8813D);
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:12px;
  font-weight:800;
  color:#111;
  letter-spacing:0.04em;
  box-shadow:0 0 16px rgba(201,169,106,0.2);
}
.logo-text{
  font-family:var(--font-title);
  font-size:18px;
  font-weight:700;
  letter-spacing:0.02em;
  color:var(--text-primary);
  white-space:nowrap;
}
.nav-tabs{
  display:flex;
  align-items:center;
  gap:4px;
  background:rgba(255,255,255,0.04);
  border:1px solid var(--border-primary);
  border-radius:999px;
  padding:4px;
}
.nav-tab{
  padding:9px 22px;
  border-radius:999px;
  font-size:14px;
  font-weight:500;
  color:var(--text-muted);
  transition:var(--transition);
  white-space:nowrap;
}
.nav-tab:hover{
  color:var(--text-primary);
  background:rgba(255,255,255,0.06);
}
.nav-tab.active{
  background:var(--accent-primary);
  color:#111;
  font-weight:600;
}
.header-cta{
  flex-shrink:0;
}
.header-actions{
  display:flex;
  align-items:center;
  gap:12px;
  flex-shrink:0;
}
.nav-toggle{
  display:none;
  width:42px;
  height:42px;
  border-radius:8px;
  border:1px solid var(--border-primary);
  background:rgba(255,255,255,0.04);
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:5px;
  transition:var(--transition);
}
.nav-toggle span{
  display:block;
  width:20px;
  height:2px;
  background:var(--accent-primary);
  border-radius:2px;
  transition:var(--transition);
}
.nav-toggle:hover{
  border-color:var(--border-hover);
}
/* Hero */
.page-hero{
  padding:64px 0 72px;
  background:
    linear-gradient(135deg,rgba(11,19,16,0.96) 0%,rgba(17,28,24,0.88) 50%,rgba(11,19,16,0.92) 100%),
    url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  border-bottom:1px solid var(--border-primary);
}
.hero-inner{
  display:grid;
  grid-template-columns:1.05fr 0.95fr;
  gap:60px;
  align-items:center;
}
.hero-content{
  max-width:560px;
}
.hero-badge{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:6px 16px;
  border-radius:999px;
  background:rgba(201,169,106,0.1);
  border:1px solid var(--border-primary);
  color:var(--accent-primary);
  font-size:13px;
  font-weight:600;
  letter-spacing:0.04em;
  margin-bottom:24px;
}
.hero-badge .dot{
  width:6px;
  height:6px;
  border-radius:50%;
  background:var(--success);
  box-shadow:0 0 8px rgba(76,175,125,0.6);
}
.page-hero h1{
  font-family:var(--font-title);
  font-size:44px;
  font-weight:700;
  line-height:1.3;
  color:var(--text-primary);
  margin-bottom:20px;
  letter-spacing:0.01em;
}
.hero-sub{
  font-size:16px;
  color:var(--text-muted);
  line-height:1.9;
  margin-bottom:32px;
}
.hero-sub strong{
  color:var(--accent-primary);
  font-weight:600;
}
.hero-btns{
  display:flex;
  flex-wrap:wrap;
  gap:16px;
  margin-bottom:40px;
}
.hero-data{
  display:flex;
  gap:36px;
  flex-wrap:wrap;
  padding-top:28px;
  border-top:1px solid var(--border-primary);
}
.hero-data .data-item{
  text-align:left;
}
.hero-data .data-num{
  font-family:var(--font-title);
  font-size:26px;
  font-weight:700;
  color:var(--accent-primary);
  line-height:1.2;
}
.hero-data .data-label{
  font-size:13px;
  color:var(--text-muted);
  margin-top:2px;
}
.hero-visual{
  position:relative;
}
.hero-phone{
  position:relative;
  max-width:340px;
  margin:0 auto;
  aspect-ratio:9/16;
  border-radius:20px;
  border:1px solid var(--border-hover);
  overflow:hidden;
  background:url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  box-shadow:0 20px 60px rgba(0,0,0,0.5),0 0 0 1px rgba(201,169,106,0.15),var(--shadow-glow);
}
.hero-phone::before{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,rgba(11,19,16,0.5) 0%,rgba(11,19,16,0) 30%,rgba(11,19,16,0.7) 100%);
}
.phone-content{
  position:absolute;
  left:16px;
  right:16px;
  bottom:18px;
  z-index:2;
}
.phone-top{
  display:flex;
  align-items:center;
  justify-content:space-between;
  margin-bottom:90px;
}
.phone-top .dot{
  width:8px;height:8px;border-radius:50%;
  background:var(--success);
}
.phone-top .chip{
  font-size:12px;
}
.phone-title{
  font-family:var(--font-title);
  font-size:18px;
  font-weight:700;
  color:var(--text-primary);
  margin-bottom:8px;
}
.phone-desc{
  font-size:13px;
  color:var(--text-muted);
  margin-bottom:18px;
}
.phone-btn{
  display:inline-block;
  padding:9px 22px;
  border-radius:999px;
  background:var(--accent-primary);
  color:#111;
  font-size:14px;
  font-weight:600;
  box-shadow:var(--shadow-glow);
}
.hero-note{
  position:absolute;
  right:-12px;
  bottom:26px;
  background:var(--bg-card);
  border:1px solid var(--border-primary);
  padding:12px 18px;
  border-radius:var(--radius-card);
  font-size:13px;
  color:var(--text-primary);
  box-shadow:var(--shadow-card);
  max-width:190px;
  z-index:3;
}
.hero-note span{
  color:var(--accent-primary);
  font-weight:600;
}
/* 板块标题 */
.section{
  padding:var(--space-section) 0;
}
.section-head{
  margin-bottom:48px;
  text-align:center;
}
.section-head .section-eyebrow{
  display:inline-block;
  font-size:13px;
  font-weight:600;
  letter-spacing:0.08em;
  color:var(--accent-primary);
  text-transform:uppercase;
  margin-bottom:12px;
}
.section-head h2{
  font-family:var(--font-title);
  font-size:32px;
  font-weight:700;
  line-height:1.35;
  color:var(--text-primary);
}
.section-head p{
  max-width:640px;
  margin:14px auto 0;
  color:var(--text-muted);
  font-size:15px;
  line-height:1.8;
}
.section-left{
  text-align:left;
  margin-bottom:40px;
}
.section-left h2{
  font-family:var(--font-title);
  font-size:30px;
  font-weight:700;
  line-height:1.35;
}
.section-left .lead{
  color:var(--text-muted);
  font-size:15px;
  margin-top:10px;
  max-width:520px;
}
/* 核心卖点 */
.features-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.feature-card{
  background:var(--bg-card);
  border:1px solid var(--border-primary);
  border-radius:var(--radius-card);
  padding:36px 30px;
  transition:var(--transition);
  position:relative;
  overflow:hidden;
}
.feature-card::before{
  content:"";
  position:absolute;
  top:0;
  left:0;
  width:100%;
  height:2px;
  background:linear-gradient(90deg,transparent,var(--accent-primary),transparent);
  opacity:0;
  transition:var(--transition);
}
.feature-card:hover{
  border-color:var(--border-hover);
  box-shadow:var(--shadow-hover);
  transform:translateY(-4px);
}
.feature-card:hover::before{
  opacity:1;
}
.feature-icon{
  width:52px;
  height:52px;
  border-radius:12px;
  background:rgba(201,169,106,0.1);
  border:1px solid var(--border-primary);
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:22px;
  color:var(--accent-primary);
  margin-bottom:22px;
}
.feature-card h3{
  font-family:var(--font-title);
  font-size:19px;
  font-weight:700;
  color:var(--text-primary);
  margin-bottom:6px;
}
.feature-card .feature-tag{
  font-size:13px;
  color:var(--accent-secondary);
  margin-bottom:12px;
  display:block;
}
.feature-card p{
  font-size:14px;
  color:var(--text-muted);
  line-height:1.85;
}
/* 资讯分类展示 */
.news-section{
  background:var(--bg-secondary);
  border-top:1px solid var(--border-primary);
  border-bottom:1px solid var(--border-primary);
}
.news-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.news-card{
  background:var(--bg-card);
  border:1px solid var(--border-primary);
  border-radius:var(--radius-card);
  overflow:hidden;
  transition:var(--transition);
  display:flex;
  flex-direction:column;
}
.news-card:hover{
  border-color:var(--border-hover);
  box-shadow:var(--shadow-hover);
  transform:translateY(-4px);
}
.news-cover{
  position:relative;
  aspect-ratio:4/3;
  overflow:hidden;
}
.news-cover img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform 0.5s ease;
}
.news-card:hover .news-cover img{
  transform:scale(1.05);
}
.news-cover::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,transparent 55%,rgba(11,19,16,0.5) 100%);
}
.news-cover .chip{
  position:absolute;
  bottom:14px;
  left:14px;
  z-index:2;
  background:rgba(11,19,16,0.75);
  backdrop-filter:blur(4px);
}
.news-body{
  padding:24px;
  flex:1;
  display:flex;
  flex-direction:column;
}
.news-body h3{
  font-family:var(--font-title);
  font-size:19px;
  font-weight:700;
  color:var(--text-primary);
  margin-bottom:8px;
}
.news-body p{
  font-size:14px;
  color:var(--text-muted);
  line-height:1.8;
  flex:1;
}
.news-meta{
  display:flex;
  align-items:center;
  justify-content:space-between;
  margin-top:18px;
  padding-top:16px;
  border-top:1px solid var(--border-primary);
}
.news-meta .date{
  font-size:13px;
  color:var(--text-muted);
}
.news-meta .link{
  font-size:14px;
  color:var(--accent-primary);
  font-weight:600;
  transition:var(--transition);
  display:inline-flex;
  align-items:center;
  gap:5px;
}
.news-meta .link:hover{
  letter-spacing:0.04em;
  transform:translateX(3px);
}
/* 流程区 */
.steps-section{
  background:var(--bg-primary);
}
.steps-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:24px;
  counter-reset:step;
}
.step-card{
  text-align:center;
  padding:32px 20px;
  background:var(--bg-card);
  border:1px solid var(--border-primary);
  border-radius:var(--radius-card);
  position:relative;
  transition:var(--transition);
}
.step-card:hover{
  border-color:var(--border-hover);
  box-shadow:var(--shadow-hover);
}
.step-num{
  width:48px;
  height:48px;
  margin:0 auto 20px;
  border-radius:50%;
  background:rgba(201,169,106,0.1);
  border:1px solid var(--border-primary);
  display:flex;
  align-items:center;
  justify-content:center;
  font-family:var(--font-title);
  font-size:20px;
  font-weight:700;
  color:var(--accent-primary);
}
.step-card h3{
  font-family:var(--font-title);
  font-size:17px;
  font-weight:700;
  color:var(--text-primary);
  margin-bottom:8px;
}
.step-card p{
  font-size:14px;
  color:var(--text-muted);
  line-height:1.75;
}
.step-card::after{
  content:"";
  position:absolute;
  top:50%;
  right:-12px;
  width:24px;
  height:1px;
  background:linear-gradient(90deg,var(--accent-primary),transparent);
  opacity:0.4;
}
.step-card:last-child::after{
  display:none;
}
/* 数据统计 */
.stats-band{
  background:
    linear-gradient(135deg,rgba(17,28,24,0.95),rgba(11,19,16,0.9)),
    url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
  border-top:1px solid var(--border-primary);
  border-bottom:1px solid var(--border-primary);
  padding:64px 0;
}
.stats-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:24px;
  text-align:center;
}
.stat-item{
  padding:24px 12px;
  border:1px solid var(--border-primary);
  border-radius:var(--radius-card);
  background:rgba(11,19,16,0.5);
  transition:var(--transition);
}
.stat-item:hover{
  border-color:var(--border-hover);
  background:rgba(17,28,24,0.7);
}
.stat-num{
  font-family:var(--font-title);
  font-size:40px;
  font-weight:700;
  color:var(--accent-primary);
  line-height:1.1;
}
.stat-label{
  font-size:14px;
  color:var(--text-muted);
  margin-top:8px;
  letter-spacing:0.03em;
}
/* FAQ */
.faq-section{
  background:var(--bg-secondary);
  border-top:1px solid var(--border-primary);
}
.faq-list{
  max-width:820px;
  margin:0 auto;
  display:flex;
  flex-direction:column;
  gap:14px;
}
.faq-item{
  background:var(--bg-card);
  border:1px solid var(--border-primary);
  border-radius:var(--radius-card);
  overflow:hidden;
  transition:var(--transition);
}
.faq-item:hover{
  border-color:var(--border-hover);
}
.faq-question{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:20px 22px;
  text-align:left;
  font-size:16px;
  font-weight:600;
  color:var(--text-primary);
  transition:var(--transition);
}
.faq-question:hover{
  color:var(--accent-primary);
}
.faq-question .faq-icon{
  position:relative;
  width:22px;
  height:22px;
  flex-shrink:0;
}
.faq-question .faq-icon::before,
.faq-question .faq-icon::after{
  content:"";
  position:absolute;
  background:var(--accent-primary);
  border-radius:2px;
  transition:var(--transition);
}
.faq-question .faq-icon::before{
  width:22px;
  height:2px;
  top:10px;
  left:0;
}
.faq-question .faq-icon::after{
  width:2px;
  height:22px;
  top:0;
  left:10px;
}
.faq-item.active .faq-question .faq-icon::after{
  transform:scaleY(0);
}
.faq-answer{
  max-height:0;
  overflow:hidden;
  transition:max-height 0.35s cubic-bezier(0.4,0,0.2,1);
  padding:0 22px;
}
.faq-item.active .faq-answer{
  max-height:400px;
  padding:0 22px 22px;
}
.faq-answer p{
  font-size:15px;
  color:var(--text-muted);
  line-height:1.9;
  border-top:1px solid var(--border-primary);
  padding-top:14px;
}
/* CTA */
.cta-band{
  padding:80px 0;
  background:
    radial-gradient(ellipse at center,rgba(201,169,106,0.12) 0%,transparent 70%),
    var(--bg-primary);
  border-top:1px solid var(--border-primary);
  text-align:center;
}
.cta-inner{
  max-width:720px;
  margin:0 auto;
}
.cta-inner h2{
  font-family:var(--font-title);
  font-size:32px;
  font-weight:700;
  line-height:1.4;
  color:var(--text-primary);
  margin-bottom:16px;
}
.cta-inner p{
  font-size:16px;
  color:var(--text-muted);
  line-height:1.85;
  margin-bottom:32px;
}
.cta-btns{
  display:flex;
  gap:16px;
  justify-content:center;
  flex-wrap:wrap;
}
/* Footer */
.site-footer{
  background:var(--bg-secondary);
  border-top:1px solid var(--border-primary);
  padding-top:64px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr;
  gap:48px;
  padding-bottom:48px;
}
.footer-brand .logo-text{
  display:inline-block;
  margin-bottom:16px;
  font-family:var(--font-title);
  font-size:20px;
  font-weight:700;
  color:var(--text-primary);
  letter-spacing:0.02em;
}
.footer-brand p{
  font-size:14px;
  color:var(--text-muted);
  line-height:1.85;
  max-width:340px;
}
.footer-col-title{
  font-family:var(--font-title);
  font-size:17px;
  font-weight:700;
  color:var(--text-primary);
  margin-bottom:20px;
  padding-bottom:12px;
  border-bottom:1px solid var(--border-primary);
}
.footer-links li{
  margin-bottom:10px;
}
.footer-links a{
  font-size:14px;
  color:var(--text-muted);
  transition:var(--transition);
  display:inline-block;
}
.footer-links a:hover{
  color:var(--accent-primary);
  transform:translateX(3px);
}
.footer-contact p{
  font-size:14px;
  color:var(--text-muted);
  line-height:1.85;
  margin-bottom:12px;
}
.footer-bottom{
  border-top:1px solid var(--border-primary);
  padding:22px 0;
  text-align:center;
}
.footer-bottom p{
  font-size:13px;
  color:var(--text-muted);
}
/* 响应式 */
@media (max-width:1024px){
  .hero-inner{
    grid-template-columns:1fr;
    gap:48px;
  }
  .hero-content{
    max-width:none;
  }
  .hero-phone{
    max-width:300px;
  }
  .features-grid,
  .news-grid{
    grid-template-columns:repeat(2,1fr);
  }
  .steps-grid{
    grid-template-columns:repeat(2,1fr);
    gap:16px;
  }
  .step-card::after{
    display:none;
  }
  .stats-grid{
    grid-template-columns:repeat(2,1fr);
  }
  .footer-grid{
    grid-template-columns:1fr 1fr;
    gap:36px;
  }
}
@media (max-width:768px){
  :root{
    --space-section:56px;
  }
  .container{
    padding:0 16px;
  }
  .site-header{
    position:sticky;
  }
  .header-inner{
    height:68px;
  }
  .logo-text{
    font-size:15px;
  }
  .logo-mark{
    width:36px;height:36px;
  }
  .nav-tabs{
    position:fixed;
    top:68px;
    right:0;
    left:0;
    z-index:99;
    flex-direction:column;
    align-items:stretch;
    background:rgba(11,19,16,0.98);
    border:1px solid var(--border-primary);
    border-radius:0 0 12px 12px;
    padding:16px;
    gap:8px;
    transform:translateY(-120%);
    transition:transform 0.35s cubic-bezier(0.4,0,0.2,1);
    box-shadow:0 20px 40px rgba(0,0,0,0.5);
  }
  .nav-tabs.open{
    transform:translateY(0);
  }
  .nav-tab{
    padding:13px 16px;
    border-radius:10px;
    color:var(--text-primary);
  }
  .nav-tab.active{
    border-radius:10px;
  }
  .header-cta{
    display:none;
  }
  .nav-toggle{
    display:flex;
  }
  .page-hero{
    padding:48px 0 48px;
  }
  .page-hero h1{
    font-size:30px;
  }
  .hero-sub{
    font-size:15px;
  }
  .hero-data{
    gap:24px;
  }
  .hero-btns .btn{
    width:100%;
  }
  .section-head h2{
    font-size:24px;
  }
  .section-left h2{
    font-size:24px;
  }
  .features-grid,
  .news-grid{
    grid-template-columns:1fr;
    gap:16px;
  }
  .steps-grid{
    grid-template-columns:1fr;
    gap:14px;
  }
  .stats-grid{
    grid-template-columns:repeat(2,1fr);
    gap:14px;
  }
  .stat-num{
    font-size:30px;
  }
  .faq-question{
    font-size:15px;
    padding:18px 16px;
  }
  .faq-answer p{
    font-size:14px;
  }
  .cta-inner h2{
    font-size:24px;
  }
  .cta-btns .btn{
    width:100%;
  }
  .footer-grid{
    grid-template-columns:1fr;
    gap:32px;
  }
  .footer-bottom p{
    font-size:12px;
    padding:0 16px;
  }
}
@media (max-width:520px){
  .hero-data{
    flex-direction:column;
    gap:16px;
  }
  .hero-note{
    display:none;
  }
}

/* roulang page: article */
:root {
  --bg-primary: #0B1310;
  --bg-secondary: #111C18;
  --bg-card: #16231E;
  --accent-gold: #C9A96A;
  --accent-muted: #8A9B8E;
  --text-primary: #E8E6E0;
  --text-muted: #8C948D;
  --border-gold: rgba(201,169,106,0.18);
  --border-gold-hover: rgba(201,169,106,0.5);
  --success: #4CAF7D;
  --warning: #D4A72C;
  --error: #C05A5A;
  --radius-card: 12px;
  --radius-btn: 6px;
  --radius-pill: 999px;
  --shadow-card: 0 2px 12px rgba(0,0,0,0.25);
  --shadow-card-hover: 0 8px 30px rgba(0,0,0,0.45), 0 0 0 1px rgba(201,169,106,0.25);
  --ease: cubic-bezier(0.4, 0, 0.2, 1);
  --font-title: "Noto Serif SC", "Source Han Serif SC", "思源宋体", serif;
  --font-body: "Noto Sans SC", "Source Han Sans SC", "思源黑体", sans-serif;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-body);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.8;
  font-size: 15px;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; transition: color 0.25s var(--ease); }
ul, ol { list-style: none; }
button { font-family: inherit; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.section-header { display: flex; align-items: center; gap: 16px; margin-bottom: 48px; }
.section-title {
  font-family: var(--font-title);
  font-size: 32px;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.3;
  letter-spacing: 0.02em;
}
.section-line { flex: 1; height: 1px; background: linear-gradient(90deg, var(--border-gold), transparent); }
.section-desc { font-size: 14px; color: var(--text-muted); margin-top: 8px; }

.site-header {
  background: rgba(11, 19, 16, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-gold);
  position: sticky;
  top: 0;
  z-index: 1000;
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  gap: 24px;
}
.logo { display: inline-flex; align-items: center; text-decoration: none; flex-shrink: 0; }
.logo-text {
  font-family: var(--font-title);
  font-size: 18px;
  font-weight: 700;
  color: var(--accent-gold);
  letter-spacing: 0.02em;
  white-space: nowrap;
}
.nav-tabs {
  display: flex;
  align-items: center;
  gap: 4px;
  background: rgba(201, 169, 106, 0.06);
  border: 1px solid var(--border-gold);
  border-radius: 999px;
  padding: 5px;
  transition: background 0.3s var(--ease);
}
.nav-tab {
  display: inline-flex;
  align-items: center;
  padding: 8px 20px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-muted);
  text-decoration: none;
  border-radius: 999px;
  transition: all 0.25s var(--ease);
  white-space: nowrap;
  background: transparent;
  border: none;
  cursor: pointer;
}
.nav-tab:hover { color: var(--accent-gold); background: rgba(201, 169, 106, 0.08); }
.nav-tab.active {
  background: var(--accent-gold);
  color: #111;
  box-shadow: 0 0 20px rgba(201, 169, 106, 0.2);
  font-weight: 600;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  font-size: 14px;
  font-weight: 600;
  border-radius: var(--radius-btn);
  border: none;
  cursor: pointer;
  text-decoration: none;
  transition: all 0.25s var(--ease);
  letter-spacing: 0.02em;
}
.btn:focus-visible { outline: 2px solid var(--accent-gold); outline-offset: 2px; }
.btn-primary {
  background: linear-gradient(135deg, #D4B87E, #C9A96A 60%, #B8944F);
  color: #111;
  box-shadow: 0 0 20px rgba(201, 169, 106, 0.15);
}
.btn-primary:hover { background: linear-gradient(135deg, #DFC694, #D4B87E); transform: translateY(-2px); box-shadow: 0 6px 24px rgba(201, 169, 106, 0.25); }
.btn-primary:active { transform: translateY(0); box-shadow: none; }
.btn-outline {
  background: transparent;
  color: var(--accent-gold);
  border: 1px solid rgba(201, 169, 106, 0.5);
  padding: 11px 28px;
}
.btn-outline:hover { background: rgba(201, 169, 106, 0.1); border-color: var(--accent-gold); transform: translateY(-2px); }
.btn-outline:active { transform: translateY(0); }
.btn-sm { padding: 8px 20px; font-size: 13px; }
.header-cta { flex-shrink: 0; padding: 10px 24px; }

.menu-toggle {
  display: none;
  background: transparent;
  border: 1px solid var(--border-gold);
  border-radius: 8px;
  width: 42px;
  height: 42px;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  cursor: pointer;
  transition: border-color 0.3s var(--ease);
}
.menu-toggle:hover { border-color: var(--accent-gold); }
.menu-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  background: var(--accent-gold);
  border-radius: 2px;
  transition: transform 0.3s var(--ease), opacity 0.3s var(--ease);
}
.menu-toggle.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.menu-toggle.active span:nth-child(2) { opacity: 0; }
.menu-toggle.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.article-hero {
  position: relative;
  padding: 80px 0 56px;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border-gold);
  overflow: hidden;
}
.article-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  opacity: 0.18;
  z-index: 0;
}
.article-bg-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(17,28,24,0.4) 0%, rgba(17,28,24,0.9) 100%);
  z-index: 1;
}
.article-hero-inner {
  position: relative;
  z-index: 2;
  max-width: 860px;
  text-align: center;
  margin: 0 auto;
}
.article-category-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 18px;
  background: rgba(201, 169, 106, 0.12);
  border: 1px solid var(--border-gold);
  border-radius: 999px;
  color: var(--accent-gold);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.04em;
  margin-bottom: 24px;
}
.article-title {
  font-family: var(--font-title);
  font-size: 44px;
  font-weight: 700;
  line-height: 1.3;
  color: var(--text-primary);
  letter-spacing: 0.02em;
  margin-bottom: 24px;
}
.article-meta {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 28px;
  flex-wrap: wrap;
}
.meta-item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-muted);
  letter-spacing: 0.02em;
}
.meta-item i { color: var(--accent-gold); font-size: 14px; }

.breadcrumb {
  padding: 20px 0;
  font-size: 13px;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  border-bottom: 1px solid var(--border-gold);
  max-width: 860px;
}
.breadcrumb a { color: var(--text-muted); transition: color 0.25s var(--ease); }
.breadcrumb a:hover { color: var(--accent-gold); }
.breadcrumb .current { color: var(--accent-gold); }
.breadcrumb-sep { color: rgba(201,169,106,0.4); font-size: 12px; }

.article-section { padding: 56px 0 64px; }
.article-layout { max-width: 860px; margin: 0 auto; padding: 0 24px; }
.article-body {
  font-size: 16px;
  line-height: 1.9;
  color: var(--text-primary);
  max-width: 780px;
  margin: 0 auto;
}
.article-body p { margin: 0 0 24px; }
.article-body h2 {
  font-family: var(--font-title);
  color: var(--accent-gold);
  font-size: 28px;
  font-weight: 600;
  margin: 48px 0 20px;
  line-height: 1.4;
  letter-spacing: 0.02em;
}
.article-body h3 {
  font-family: var(--font-title);
  color: var(--accent-muted);
  font-size: 20px;
  font-weight: 600;
  margin: 36px 0 16px;
  line-height: 1.4;
}
.article-body ul {
  margin: 0 0 24px;
  padding-left: 0;
}
.article-body ul li {
  position: relative;
  padding-left: 22px;
  margin-bottom: 10px;
  color: var(--text-primary);
}
.article-body ul li::before {
  content: "◆";
  position: absolute;
  left: 0;
  color: var(--accent-gold);
  font-size: 10px;
  top: 2px;
}
.article-body ol {
  margin: 0 0 24px;
  padding-left: 22px;
  counter-reset: item;
}
.article-body ol li {
  position: relative;
  padding-left: 10px;
  margin-bottom: 10px;
  counter-increment: item;
  color: var(--text-primary);
}
.article-body ol li::before {
  content: counter(item) ".";
  position: absolute;
  left: -16px;
  color: var(--accent-gold);
  font-weight: 600;
}
.article-body blockquote {
  position: relative;
  margin: 32px 0;
  padding: 24px 28px;
  background: var(--bg-card);
  border-left: 3px solid var(--accent-gold);
  border-radius: 0 var(--radius-card) var(--radius-card) 0;
  color: var(--accent-muted);
  font-size: 15px;
  line-height: 1.7;
}
.article-body blockquote p { margin-bottom: 0; }
.article-body a { color: var(--accent-gold); text-decoration: underline; text-underline-offset: 3px; }
.article-body a:hover { color: #DFC694; }
.article-body img {
  width: 100%;
  border-radius: 8px;
  margin: 32px 0;
  box-shadow: var(--shadow-card);
}
.article-body hr {
  border: none;
  border-top: 1px solid var(--border-gold);
  margin: 40px 0;
}

.article-empty {
  max-width: 780px;
  margin: 0 auto;
  text-align: center;
  padding: 64px 24px;
  background: var(--bg-card);
  border: 1px solid var(--border-gold);
  border-radius: var(--radius-card);
}
.empty-icon {
  width: 72px;
  height: 72px;
  margin: 0 auto 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: rgba(201, 169, 106, 0.1);
  border: 1px solid var(--border-gold);
  color: var(--accent-gold);
  font-size: 28px;
}
.empty-title {
  font-family: var(--font-title);
  font-size: 24px;
  color: var(--accent-gold);
  margin-bottom: 12px;
}
.empty-text { color: var(--text-muted); margin-bottom: 24px; }

.article-footer-nav {
  max-width: 780px;
  margin: 48px auto 0;
  border-top: 1px solid var(--border-gold);
  padding-top: 28px;
  display: flex;
  align-items: center;
}
.article-footer-nav a { display: inline-flex; align-items: center; gap: 8px; }

.related-section { padding: 80px 0; background: var(--bg-secondary); border-top: 1px solid var(--border-gold); }
.related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.related-card {
  display: flex;
  flex-direction: column;
  background: var(--bg-card);
  border: 1px solid var(--border-gold);
  border-radius: var(--radius-card);
  overflow: hidden;
  transition: all 0.3s var(--ease);
  text-decoration: none;
}
.related-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-card-hover);
  border-color: var(--border-gold-hover);
}
.related-image {
  position: relative;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: var(--bg-secondary);
}
.related-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s var(--ease);
}
.related-card:hover .related-image img { transform: scale(1.06); }
.related-content { padding: 20px 22px 24px; display: flex; flex-direction: column; flex: 1; }
.related-tag {
  display: inline-flex;
  align-items: center;
  width: fit-content;
  padding: 4px 14px;
  background: rgba(201, 169, 106, 0.12);
  border: 1px solid var(--border-gold);
  border-radius: 999px;
  font-size: 12px;
  color: var(--accent-gold);
  letter-spacing: 0.04em;
  margin-bottom: 12px;
}
.related-content h3 {
  font-family: var(--font-title);
  font-size: 18px;
  font-weight: 600;
  color: var(--text-primary);
  line-height: 1.4;
  margin-bottom: 8px;
  transition: color 0.25s var(--ease);
}
.related-card:hover .related-content h3 { color: var(--accent-gold); }
.related-content p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 16px;
  flex: 1;
}
.related-read {
  font-size: 13px;
  color: var(--accent-gold);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-weight: 500;
}
.related-read i { transition: transform 0.25s var(--ease); }
.related-card:hover .related-read i { transform: translateX(4px); }

.cta-section {
  padding: 96px 24px;
  background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
  border-top: 1px solid var(--border-gold);
  text-align: center;
  position: relative;
}
.cta-section::before {
  content: "";
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 560px;
  height: 160px;
  background: radial-gradient(ellipse at center, rgba(201, 169, 106, 0.08), transparent 70%);
  pointer-events: none;
}
.cta-inner { max-width: 760px; margin: 0 auto; }
.cta-title {
  font-family: var(--font-title);
  font-size: 32px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 16px;
  letter-spacing: 0.02em;
}
.cta-desc { color: var(--text-muted); font-size: 15px; margin-bottom: 36px; line-height: 1.8; }
.cta-actions { display: flex; justify-content: center; gap: 16px; flex-wrap: wrap; }

.site-footer { background: var(--bg-secondary); border-top: 1px solid var(--border-gold); }
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1.2fr;
  gap: 48px;
  padding: 64px 0 48px;
}
.footer-brand .logo-text { font-size: 20px; margin-bottom: 16px; display: inline-block; }
.footer-brand p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.8;
  max-width: 360px;
}
.footer-col-title {
  font-family: var(--font-title);
  font-size: 16px;
  font-weight: 600;
  color: var(--accent-gold);
  margin-bottom: 20px;
  letter-spacing: 0.04em;
}
.footer-links li { margin-bottom: 12px; }
.footer-links a {
  color: var(--text-muted);
  font-size: 14px;
  transition: color 0.25s var(--ease), padding-left 0.25s var(--ease);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.footer-links a::before {
  content: "→";
  color: var(--accent-gold);
  font-size: 12px;
  opacity: 0;
  transition: opacity 0.25s var(--ease);
}
.footer-links a:hover { color: var(--accent-gold); padding-left: 4px; }
.footer-links a:hover::before { opacity: 1; }
.footer-contact p {
  font-size: 14px;
  color: var(--text-muted);
  margin-bottom: 12px;
  line-height: 1.7;
}
.footer-bottom {
  border-top: 1px solid var(--border-gold);
  padding: 20px 0;
}
.footer-bottom .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
}
.footer-bottom p {
  font-size: 13px;
  color: var(--text-muted);
}

@media (max-width: 1024px) {
  .nav-tab { padding: 8px 16px; }
  .header-inner { gap: 16px; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
  .related-grid { grid-template-columns: repeat(2, 1fr); }
  .article-title { font-size: 36px; }
}

@media (max-width: 768px) {
  body { font-size: 14px; }
  .container { padding: 0 16px; }
  .header-inner { height: 64px; }
  .logo-text { font-size: 15px; }
  .header-cta { display: none; }
  .menu-toggle { display: flex; }
  .nav-tabs {
    position: fixed;
    top: 0;
    right: -280px;
    width: 260px;
    height: 100vh;
    flex-direction: column;
    align-items: stretch;
    background: var(--bg-secondary);
    border-left: 1px solid var(--border-gold);
    border-radius: 0;
    padding: 64px 16px 24px;
    gap: 8px;
    transition: right 0.35s var(--ease);
    z-index: 999;
  }
  .nav-tabs.open { right: 0; }
  .nav-tab {
    padding: 12px 16px;
    font-size: 15px;
    border-radius: 8px;
    display: block;
    width: 100%;
    text-align: left;
  }
  .nav-tab.active { background: var(--accent-gold); color: #111; }
  .section-title { font-size: 24px; }
  .section-header { margin-bottom: 32px; }
  .article-hero { padding: 48px 0 36px; }
  .article-title { font-size: 28px; margin-bottom: 16px; }
  .article-meta { gap: 16px; }
  .article-section { padding: 40px 0 48px; }
  .article-body { font-size: 15px; }
  .article-body h2 { font-size: 22px; margin: 36px 0 16px; }
  .article-body h3 { font-size: 18px; }
  .related-grid { grid-template-columns: 1fr; gap: 16px; }
  .related-section { padding: 48px 0; }
  .cta-section { padding: 64px 16px; }
  .cta-title { font-size: 24px; }
  .cta-actions { flex-direction: column; align-items: center; }
  .btn { width: 100%; max-width: 320px; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; padding: 48px 0 32px; }
  .footer-bottom .container { justify-content: center; text-align: center; }
}

@media (max-width: 520px) {
  .logo-text { font-size: 13px; letter-spacing: 0.01em; }
  .breadcrumb { gap: 6px; font-size: 12px; }
}

/* roulang page: category2 */
:root {
  --bg-dark: #0B1310;
  --bg-sub: #111C18;
  --bg-card: #16231E;
  --gold: #C9A96A;
  --gold-light: #DCC08A;
  --green-gray: #8A9B8E;
  --text-main: #E8E6E0;
  --text-muted: #8C948D;
  --border: rgba(201, 169, 106, 0.18);
  --border-hover: rgba(201, 169, 106, 0.5);
  --radius: 12px;
  --radius-sm: 8px;
  --shadow: 0 2px 12px rgba(0, 0, 0, 0.25);
  --shadow-hover: 0 8px 30px rgba(0, 0, 0, 0.45), 0 0 0 1px rgba(201, 169, 106, 0.25);
  --font-serif: "Noto Serif SC", "Source Han Serif SC", "思源宋体", serif;
  --font-sans: "Noto Sans SC", "Source Han Sans SC", "思源黑体", sans-serif;
  --ease: cubic-bezier(0.4, 0, 0.2, 1);
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-sans);
  background-color: var(--bg-dark);
  color: var(--text-main);
  line-height: 1.8;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; }
ul, ol { list-style: none; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.section { padding: 96px 0; }

/* ===== Header / Nav ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(11, 19, 16, 0.92);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  gap: 20px;
}
.logo { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.logo-icon {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  background: linear-gradient(135deg, #C9A96A 0%, #8A6D3B 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #0B1310;
  font-size: 18px;
  font-weight: 700;
  box-shadow: 0 0 18px rgba(201, 169, 106, 0.3);
}
.logo-text {
  font-family: var(--font-serif);
  font-size: 18px;
  font-weight: 600;
  color: var(--text-main);
  letter-spacing: 0.02em;
  white-space: nowrap;
}
.nav-tabs-wrap {
  display: flex;
  align-items: center;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 4px;
  gap: 2px;
}
.nav-tab {
  display: inline-block;
  padding: 8px 18px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-muted);
  transition: all 0.25s var(--ease);
  white-space: nowrap;
}
.nav-tab:hover { color: var(--gold); }
.nav-tab.active {
  background: var(--gold);
  color: #0B1310;
  font-weight: 600;
  box-shadow: 0 0 14px rgba(201, 169, 106, 0.25);
}
.header-cta { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }
.btn-primary {
  background: var(--gold);
  color: #111;
  border: none;
  padding: 10px 22px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 600;
  transition: all 0.25s var(--ease);
  box-shadow: 0 0 16px rgba(201, 169, 106, 0.15);
}
.btn-primary:hover { background: var(--gold-light); transform: translateY(-2px); box-shadow: 0 4px 24px rgba(201, 169, 106, 0.3); }
.btn-primary:active { transform: translateY(0); }
.btn-primary:focus-visible { outline: 2px solid var(--gold); outline-offset: 3px; }
.nav-toggle { display: none; background: none; border: 1px solid var(--border); color: var(--gold); width: 42px; height: 42px; border-radius: 10px; font-size: 18px; align-items: center; justify-content: center; }
.mobile-drawer { display: none; position: fixed; top: 72px; right: 0; bottom: 0; width: 300px; background: var(--bg-sub); z-index: 99; padding: 24px; flex-direction: column; gap: 16px; border-left: 1px solid var(--border); box-shadow: -8px 0 30px rgba(0, 0, 0, 0.4); transform: translateX(100%); transition: transform 0.35s var(--ease); }
.mobile-drawer.open { transform: translateX(0); }
.mobile-drawer .nav-tab { padding: 12px 14px; font-size: 16px; }

/* ===== Page Hero ===== */
.page-hero {
  position: relative;
  padding: 80px 0 70px;
  background: url('/assets/images/backpic/back-1.png') center 30% / cover no-repeat;
  border-bottom: 1px solid var(--border);
}
.page-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(11, 19, 16, 0.88) 0%, rgba(11, 19, 16, 0.94) 100%);
}
.page-hero .container { position: relative; z-index: 2; }
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(201, 169, 106, 0.12);
  border: 1px solid var(--border);
  color: var(--gold);
  border-radius: 999px;
  padding: 6px 16px;
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.04em;
  margin-bottom: 20px;
}
.page-hero h1 {
  font-family: var(--font-serif);
  font-size: 44px;
  font-weight: 700;
  line-height: 1.3;
  color: var(--text-main);
  margin-bottom: 14px;
}
.page-hero .hero-desc {
  font-size: 16px;
  color: var(--text-muted);
  max-width: 620px;
  margin-bottom: 30px;
  line-height: 1.9;
}
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }
.btn-secondary {
  background: transparent;
  color: var(--gold);
  border: 1px solid var(--border);
  padding: 10px 22px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 500;
  transition: all 0.25s var(--ease);
}
.btn-secondary:hover { background: rgba(201, 169, 106, 0.1); border-color: var(--border-hover); }
.btn-secondary:focus-visible { outline: 2px solid var(--gold); outline-offset: 3px; }
.hero-metrics { display: flex; gap: 36px; margin-top: 36px; flex-wrap: wrap; }
.metric-item { display: flex; flex-direction: column; gap: 2px; }
.metric-value { font-family: var(--font-serif); font-size: 26px; font-weight: 700; color: var(--gold); }
.metric-label { font-size: 13px; color: var(--text-muted); }

/* ===== Guide Layout ===== */
.guide-section { padding: 80px 0; }
.guide-grid { display: grid; grid-template-columns: 280px 1fr; gap: 48px; align-items: start; }
.guide-toc {
  position: sticky;
  top: 96px;
  background: var(--bg-sub);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 24px;
  box-shadow: var(--shadow);
}
.toc-title {
  font-family: var(--font-serif);
  font-size: 17px;
  font-weight: 600;
  color: var(--gold);
  margin-bottom: 18px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border);
}
.toc-list { display: flex; flex-direction: column; gap: 4px; }
.toc-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 12px;
  border-radius: 8px;
  font-size: 14px;
  color: var(--text-muted);
  transition: all 0.25s var(--ease);
  line-height: 1.4;
}
.toc-item .toc-num { font-family: var(--font-serif); font-size: 15px; color: var(--gold); font-weight: 600; min-width: 20px; }
.toc-item:hover { background: rgba(201, 169, 106, 0.08); color: var(--text-main); }
.toc-item.active { color: var(--gold); background: rgba(201, 169, 106, 0.06); }
.toc-img { margin-top: 20px; border-radius: var(--radius-sm); overflow: hidden; }
.toc-img img { width: 100%; height: 140px; object-fit: cover; }
.toc-cta { margin-top: 20px; text-align: center; }

/* ===== Guide Content List ===== */
.guide-list { display: flex; flex-direction: column; }
.guide-item {
  display: flex;
  gap: 28px;
  padding: 36px 0;
  border-bottom: 1px solid var(--border);
  transition: background 0.3s var(--ease);
}
.guide-item:first-child { padding-top: 0; }
.guide-item-num {
  font-family: var(--font-serif);
  font-size: 32px;
  font-weight: 700;
  color: var(--gold);
  line-height: 1.2;
  min-width: 60px;
  opacity: 0.85;
}
.guide-item-body { flex: 1; }
.guide-item-body h3 {
  font-family: var(--font-serif);
  font-size: 22px;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 10px;
  transition: color 0.25s var(--ease);
}
.guide-item-body h3 a { color: inherit; }
.guide-item-body h3 a:hover { color: var(--gold); }
.guide-item-body p {
  font-size: 15px;
  color: var(--text-muted);
  line-height: 1.85;
  margin-bottom: 16px;
}
.guide-tags { display: flex; gap: 8px; flex-wrap: wrap; }
.guide-tags span {
  background: rgba(201, 169, 106, 0.08);
  border: 1px solid var(--border);
  color: var(--green-gray);
  font-size: 12px;
  padding: 3px 12px;
  border-radius: 999px;
  font-weight: 400;
}

/* ===== Steps Path ===== */
.steps-section {
  background: var(--bg-sub);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 80px 0;
}
.section-head { text-align: center; margin-bottom: 52px; }
.section-head h2 {
  font-family: var(--font-serif);
  font-size: 32px;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 12px;
}
.section-head p { font-size: 15px; color: var(--text-muted); max-width: 560px; margin: 0 auto; }
.steps-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.step-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 28px;
  transition: all 0.3s var(--ease);
}
.step-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-4px); }
.step-icon {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: rgba(201, 169, 106, 0.1);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--gold);
  font-size: 20px;
  margin-bottom: 18px;
}
.step-card h3 { font-family: var(--font-serif); font-size: 18px; font-weight: 600; color: var(--text-main); margin-bottom: 10px; }
.step-card p { font-size: 14px; color: var(--text-muted); line-height: 1.75; }

/* ===== FAQ ===== */
.faq-section { padding: 80px 0; }
.faq-list { max-width: 820px; margin: 0 auto; }
.faq-item {
  background: var(--bg-sub);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 14px;
  overflow: hidden;
  transition: border-color 0.25s var(--ease);
}
.faq-item:hover { border-color: var(--border-hover); }
.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  background: none;
  border: none;
  padding: 22px 26px;
  text-align: left;
  font-size: 16px;
  font-weight: 600;
  color: var(--text-main);
  transition: color 0.25s var(--ease);
}
.faq-question:hover { color: var(--gold); }
.faq-icon { flex-shrink: 0; color: var(--gold); font-size: 16px; transition: transform 0.3s var(--ease); }
.faq-item.open .faq-icon { transform: rotate(45deg); }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height 0.35s var(--ease); }
.faq-answer-inner { padding: 0 26px 22px; font-size: 15px; color: var(--text-muted); line-height: 1.85; }

/* ===== CTA ===== */
.cta-section {
  position: relative;
  padding: 90px 0;
  background: url('/assets/images/backpic/back-2.webp') center / cover no-repeat;
  border-top: 1px solid var(--border);
}
.cta-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(11, 19, 16, 0.94) 0%, rgba(17, 28, 24, 0.85) 100%);
}
.cta-content { position: relative; z-index: 2; text-align: center; max-width: 700px; margin: 0 auto; }
.cta-content h2 {
  font-family: var(--font-serif);
  font-size: 32px;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 14px;
}
.cta-content p { font-size: 16px; color: var(--text-muted); margin-bottom: 32px; }
.cta-actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

/* ===== Footer ===== */
.site-footer { background: var(--bg-sub); border-top: 1px solid var(--border); padding-top: 64px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 48px; padding-bottom: 40px; }
.footer-brand .logo-text { font-size: 20px; margin-bottom: 14px; display: inline-block; }
.footer-brand p { font-size: 14px; color: var(--text-muted); line-height: 1.8; max-width: 360px; }
.footer-col-title { font-family: var(--font-serif); font-size: 16px; font-weight: 600; color: var(--text-main); margin-bottom: 18px; }
.footer-links { display: flex; flex-direction: column; gap: 10px; }
.footer-links a { font-size: 14px; color: var(--text-muted); transition: color 0.25s var(--ease); }
.footer-links a:hover { color: var(--gold); }
.footer-contact p { font-size: 14px; color: var(--text-muted); margin-bottom: 10px; line-height: 1.7; }
.footer-bottom {
  border-top: 1px solid var(--border);
  padding: 20px 0;
  text-align: center;
}
.footer-bottom p { font-size: 13px; color: var(--text-muted); }

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .guide-grid { grid-template-columns: 240px 1fr; gap: 32px; }
  .steps-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
  .container { padding: 0 16px; }
  .section { padding: 64px 0; }
  .nav-tabs-wrap { display: none; }
  .header-cta .btn-primary { display: none; }
  .nav-toggle { display: flex; }
  .mobile-drawer { display: flex; }
  .page-hero { padding: 56px 0 48px; }
  .page-hero h1 { font-size: 30px; }
  .hero-desc { font-size: 15px; }
  .hero-metrics { gap: 20px; }
  .guide-section { padding: 56px 0; }
  .guide-grid { grid-template-columns: 1fr; }
  .guide-toc { position: static; margin-bottom: 24px; }
  .guide-item { gap: 16px; padding: 28px 0; }
  .guide-item-num { font-size: 26px; min-width: 42px; }
  .guide-item-body h3 { font-size: 19px; }
  .steps-grid { grid-template-columns: 1fr; }
  .section-head h2 { font-size: 26px; }
  .cta-content h2 { font-size: 26px; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
}
@media (max-width: 520px) {
  .page-hero h1 { font-size: 27px; }
  .hero-actions { flex-direction: column; width: 100%; }
  .hero-actions .btn-primary, .hero-actions .btn-secondary { width: 100%; text-align: center; }
  .footer-grid { grid-template-columns: 1fr; }
}

/* Focus access */
a:focus-visible { outline: 2px solid var(--gold); outline-offset: 2px; }