/* roulang page: index */
:root {
  --bg-deep: #0A1626;
  --bg-main: #0D1B2E;
  --bg-footer: #070F1A;
  --primary: #00A6FF;
  --primary-dark: #0066FF;
  --primary-grad: linear-gradient(135deg, #00A6FF 0%, #0066FF 100%);
  --gold: #F5B841;
  --success: #2BD576;
  --warning: #FFA940;
  --danger: #FF5C5C;
  --text-main: #EAF2FA;
  --text-secondary: #9FB3C8;
  --text-muted: #687D92;
  --card-bg: rgba(255,255,255,0.05);
  --card-bg-hover: rgba(255,255,255,0.08);
  --card-border: rgba(255,255,255,0.12);
  --card-border-hover: rgba(255,255,255,0.18);
  --radius-lg: 20px;
  --radius-md: 16px;
  --radius-sm: 12px;
  --radius-xs: 8px;
  --shadow-card: 0 8px 32px rgba(0,0,0,0.35);
  --shadow-card-hover: 0 12px 40px rgba(0,0,0,0.45);
  --glow-primary: 0 0 24px rgba(0,166,255,0.35);
  --glow-primary-hover: 0 0 40px rgba(0,166,255,0.5);
  --glow-gold: 0 0 20px rgba(245,184,65,0.3);
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --font-main: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
  --font-num: 'DIN Alternate', 'Roboto Mono', monospace;
  --container-width: 1200px;
  --section-gap: 90px;
  --section-gap-mobile: 56px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-main);
  font-size: 16px;
  line-height: 1.75;
  color: var(--text-main);
  background: var(--bg-main);
  background-image: radial-gradient(ellipse 80% 60% at 70% -10%, rgba(0,102,255,0.12), transparent),
                    radial-gradient(ellipse 60% 50% at 10% 20%, rgba(0,166,255,0.06), transparent),
                    linear-gradient(160deg, var(--bg-deep) 0%, var(--bg-main) 100%);
  background-repeat: no-repeat;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

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

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

a:hover {
  color: #59C1FF;
}

button {
  font-family: var(--font-main);
  cursor: pointer;
}

input, select, textarea {
  font-family: var(--font-main);
}

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

.section {
  padding: var(--section-gap) 0;
  position: relative;
}

.section-header {
  text-align: center;
  margin-bottom: 56px;
}

.section-header .section-eyebrow {
  display: inline-block;
  font-size: 0.875rem;
  letter-spacing: 2px;
  color: var(--primary);
  text-transform: uppercase;
  background: rgba(0,166,255,0.1);
  border: 1px solid rgba(0,166,255,0.25);
  padding: 4px 16px;
  border-radius: 100px;
  margin-bottom: 16px;
}

.section-header h2 {
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.3;
}

.section-header p {
  color: var(--text-secondary);
  max-width: 640px;
  margin: 12px auto 0;
  font-size: 1rem;
}

/* ============ 导航 ============ */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(10,22,38,0.8);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.nav-container {
  max-width: var(--container-width);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  padding: 0 24px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 1.35rem;
  color: var(--text-main);
  letter-spacing: -0.02em;
}

.brand-icon {
  width: 36px;
  height: 36px;
  background: var(--primary-grad);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--glow-primary);
  flex-shrink: 0;
}

.brand-icon svg {
  width: 20px;
  height: 20px;
  fill: #fff;
}

.brand-text {
  background: linear-gradient(120deg, #FFFFFF 20%, #A8DDFF 60%, var(--primary) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-link {
  color: var(--text-secondary);
  font-size: 0.95rem;
  font-weight: 500;
  padding: 8px 4px;
  position: relative;
  transition: var(--transition);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--primary-grad);
  border-radius: 2px;
  transition: width 0.3s;
}

.nav-link:hover {
  color: var(--text-main);
}

.nav-link:hover::after {
  width: 100%;
}

.nav-link.active {
  color: var(--text-main);
}

.nav-link.active::after {
  width: 100%;
}

.nav-cta {
  display: flex;
  align-items: center;
  gap: 16px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 0.95rem;
  font-weight: 600;
  padding: 10px 24px;
  border-radius: var(--radius-sm);
  border: none;
  transition: var(--transition);
  white-space: nowrap;
}

.btn-primary {
  background: var(--primary-grad);
  color: #fff;
  box-shadow: var(--glow-primary);
}

.btn-primary:hover {
  box-shadow: var(--glow-primary-hover);
  transform: translateY(-2px);
  color: #fff;
}

.btn-outline {
  background: rgba(255,255,255,0.06);
  color: var(--text-main);
  border: 1px solid var(--card-border);
  backdrop-filter: blur(8px);
}

.btn-outline:hover {
  background: rgba(255,255,255,0.12);
  border-color: rgba(255,255,255,0.25);
  transform: translateY(-2px);
}

.btn-gold {
  background: linear-gradient(135deg, #F5B841, #E8A52F);
  color: #0A1626;
  box-shadow: var(--glow-gold);
}

.btn-gold:hover {
  box-shadow: 0 0 32px rgba(245,184,65,0.5);
  transform: translateY(-2px);
  color: #0A1626;
}

/* 汉堡菜单 */
.hamburger {
  display: none;
  width: 42px;
  height: 42px;
  background: rgba(255,255,255,0.06);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-xs);
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 5px;
}

.hamburger span {
  width: 20px;
  height: 2px;
  background: var(--text-main);
  border-radius: 2px;
  display: block;
  transition: var(--transition);
}

.hamburger.open span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

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

.hamburger.open span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* 移动端抽屉 */
.mobile-menu {
  display: none;
  position: fixed;
  top: 72px;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(10,22,38,0.97);
  backdrop-filter: blur(20px);
  z-index: 999;
  padding: 40px 24px;
  flex-direction: column;
  align-items: stretch;
  gap: 8px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-20px);
  transition: var(--transition);
}

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

.mobile-menu .nav-link {
  font-size: 1.125rem;
  padding: 16px 8px;
  border-bottom: 1px solid rgba(255,255,255,0.06);
}

.mobile-menu .nav-link::after {
  display: none;
}

.mobile-menu .btn {
  margin-top: 32px;
  width: 100%;
  padding: 14px;
  font-size: 1.05rem;
}

/* ============ Hero ============ */
.hero {
  position: relative;
  min-height: 680px;
  display: flex;
  align-items: center;
  padding: 120px 0 80px;
  overflow: hidden;
  background-image: url('/assets/images/backpic/back-1.png');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(105deg, rgba(10,22,38,0.95) 20%, rgba(10,22,38,0.75) 50%, rgba(10,22,38,0.4) 80%);
}

.hero::after {
  content: '';
  position: absolute;
  top: -40%;
  right: -10%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(0,166,255,0.15) 0%, transparent 70%);
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 720px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255,255,255,0.08);
  border: 1px solid var(--card-border);
  border-radius: 100px;
  padding: 6px 16px;
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-bottom: 24px;
  backdrop-filter: blur(8px);
}

.hero-badge .dot {
  width: 8px;
  height: 8px;
  background: var(--success);
  border-radius: 50%;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(43,213,118,0.5); }
  50% { box-shadow: 0 0 0 6px rgba(43,213,118,0); }
}

.hero h1 {
  font-size: clamp(2.2rem, 5vw, 3.6rem);
  font-weight: 900;
  line-height: 1.2;
  margin-bottom: 20px;
  letter-spacing: -0.02em;
}

.hero h1 .highlight {
  background: linear-gradient(120deg, var(--primary) 0%, #66D1FF 50%, var(--primary) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  background-size: 200% auto;
  animation: shine 3s linear infinite;
}

@keyframes shine {
  to { background-position: 200% center; }
}

.hero-sub {
  font-size: 1.1rem;
  color: var(--text-secondary);
  margin-bottom: 36px;
  max-width: 560px;
  line-height: 1.8;
}

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

.hero-actions .btn {
  padding: 14px 32px;
  font-size: 1rem;
}

.hero-stats-mini {
  display: flex;
  gap: 32px;
  margin-top: 48px;
  flex-wrap: wrap;
}

.hero-stats-mini .item .num {
  font-family: var(--font-num);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-main);
}

.hero-stats-mini .item .label {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 2px;
}

/* ============ 数据信任条 ============ */
.trust-bar {
  background: rgba(255,255,255,0.04);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(255,255,255,0.06);
  border-top: 1px solid rgba(255,255,255,0.06);
  padding: 36px 0;
  margin-top: -1px;
}

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

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

.trust-item .trust-num {
  font-family: var(--font-num);
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  font-weight: 700;
  background: linear-gradient(135deg, var(--text-main), var(--primary));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  text-shadow: 0 0 40px rgba(0,166,255,0.3);
  line-height: 1.3;
}

.trust-item .trust-label {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-top: 4px;
}

/* ============ 流程时间线 ============ */
.timeline-section {
  position: relative;
}

.timeline {
  position: relative;
  max-width: 900px;
  margin: 0 auto;
  padding: 20px 0;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 50%;
  top: 0;
  bottom: 0;
  width: 2px;
  transform: translateX(-50%);
  background: linear-gradient(180deg, var(--primary) 0%, rgba(0,166,255,0.1) 100%);
  box-shadow: 0 0 20px rgba(0,166,255,0.3);
}

.timeline-item {
  position: relative;
  width: 50%;
  padding: 24px 48px 24px 0;
}

.timeline-item:nth-child(odd) {
  left: 0;
  padding-right: 56px;
  text-align: right;
}

.timeline-item:nth-child(even) {
  left: 50%;
  padding-left: 56px;
  padding-right: 0;
}

.timeline-dot {
  position: absolute;
  top: 32px;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--primary);
  box-shadow: var(--glow-primary);
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: center;
}

.timeline-item:nth-child(odd) .timeline-dot {
  right: -9px;
}

.timeline-item:nth-child(even) .timeline-dot {
  left: -9px;
}

.timeline-dot.done {
  background: var(--success);
  box-shadow: 0 0 20px rgba(43,213,118,0.5);
}

.timeline-dot.done::after {
  content: '✓';
  color: #fff;
  font-size: 10px;
  font-weight: 700;
}

.timeline-dot.current {
  background: var(--primary);
  animation: dot-pulse 2s infinite;
}

@keyframes dot-pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(0,166,255,0.6); }
  50% { box-shadow: 0 0 0 8px rgba(0,166,255,0); }
}

.timeline-dot.empty {
  background: rgba(255,255,255,0.15);
  box-shadow: none;
  border: 2px solid rgba(255,255,255,0.3);
}

.timeline-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-lg);
  padding: 24px;
  backdrop-filter: blur(12px);
  box-shadow: var(--shadow-card);
  transition: var(--transition);
}

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

.timeline-status {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.8rem;
  padding: 3px 12px;
  border-radius: 100px;
  margin-bottom: 12px;
  font-weight: 500;
}

.timeline-status.done {
  background: rgba(43,213,118,0.1);
  color: var(--success);
  border: 1px solid rgba(43,213,118,0.25);
}

.timeline-status.current {
  background: rgba(0,166,255,0.1);
  color: var(--primary);
  border: 1px solid rgba(0,166,255,0.25);
}

.timeline-status.upcoming {
  background: rgba(255,255,255,0.06);
  color: var(--text-muted);
  border: 1px solid rgba(255,255,255,0.15);
}

.timeline-time {
  font-family: var(--font-num);
  color: var(--primary);
  font-size: 0.9rem;
  margin-bottom: 8px;
}

.timeline-card h3 {
  font-size: 1.05rem;
  margin-bottom: 8px;
  color: var(--text-main);
}

.timeline-card p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ============ Bento 网格 ============ */
.bento-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  grid-auto-rows: 260px;
  gap: 24px;
}

.bento-item {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  transition: var(--transition);
  cursor: pointer;
}

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

.bento-item img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.bento-item .bento-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 20%, rgba(10,22,38,0.85) 100%);
}

.bento-item .bento-content {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 24px;
  z-index: 2;
}

.bento-item .bento-icon {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: rgba(0,166,255,0.2);
  border: 1px solid rgba(0,166,255,0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 12px;
  font-size: 1.2rem;
  backdrop-filter: blur(8px);
}

.bento-item .bento-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 6px;
}

.bento-item .bento-desc {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.6;
  max-width: 90%;
}

.bento-large {
  grid-column: span 2;
  grid-row: span 2;
}

.bento-wide {
  grid-column: span 2;
}

.bento-tall {
  grid-row: span 2;
}

/* ============ 票种对比 ============ */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  align-items: stretch;
}

.pricing-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-lg);
  padding: 36px 32px;
  backdrop-filter: blur(12px);
  box-shadow: var(--shadow-card);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  position: relative;
}

.pricing-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-card-hover);
  border-color: var(--card-border-hover);
}

.pricing-card.featured {
  background: linear-gradient(180deg, rgba(0,166,255,0.12), rgba(255,255,255,0.05));
  border-color: rgba(0,166,255,0.4);
  box-shadow: 0 0 40px rgba(0,166,255,0.15), var(--shadow-card);
  transform: scale(1.03);
}

.pricing-card.featured:hover {
  transform: scale(1.03) translateY(-6px);
}

.pricing-badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: linear-gradient(135deg, #F5B841, #E8A52F);
  color: #0A1626;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 4px 16px;
  border-radius: 100px;
  box-shadow: var(--glow-gold);
}

.pricing-name {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 12px;
}

.pricing-price {
  margin-bottom: 24px;
}

.pricing-price .currency {
  font-family: var(--font-num);
  font-size: 1rem;
  color: var(--gold);
  vertical-align: super;
  margin-right: 2px;
}

.pricing-price .amount {
  font-family: var(--font-num);
  font-size: 2.6rem;
  font-weight: 700;
  color: var(--gold);
  line-height: 1;
}

.pricing-price .period {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-left: 4px;
}

.pricing-features {
  list-style: none;
  margin-bottom: 32px;
  flex-grow: 1;
}

.pricing-features li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 8px 0;
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.pricing-features li .check {
  color: var(--success);
  flex-shrink: 0;
}

.pricing-features li .cross {
  color: var(--text-muted);
  flex-shrink: 0;
}

.pricing-features li.dim {
  color: var(--text-muted);
}

.pricing-card .btn {
  width: 100%;
  padding: 12px;
}

/* ============ 报名 CTA 表单 ============ */
.cta-section {
  position: relative;
  background-image: url('/assets/images/backpic/back-2.webp');
  background-size: cover;
  background-position: center;
  padding: 100px 0;
}

.cta-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(10,22,38,0.88);
  backdrop-filter: blur(4px);
}

.cta-wrapper {
  position: relative;
  z-index: 2;
  max-width: 900px;
  margin: 0 auto;
}

.cta-header {
  text-align: center;
  margin-bottom: 48px;
}

.cta-header h2 {
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  font-weight: 800;
}

.cta-header p {
  color: var(--text-secondary);
  margin-top: 12px;
}

.signup-card {
  background: rgba(255,255,255,0.07);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-lg);
  padding: 44px;
  backdrop-filter: blur(20px);
  box-shadow: var(--shadow-card), inset 0 1px 0 rgba(255,255,255,0.1);
}

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

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-group.full {
  grid-column: span 2;
}

.form-label {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.form-input {
  background: rgba(255,255,255,0.06);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-sm);
  padding: 12px 16px;
  color: var(--text-main);
  font-size: 0.95rem;
  transition: var(--transition);
  outline: none;
}

.form-input::placeholder {
  color: #5A6B7D;
}

.form-input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(0,166,255,0.2);
}

.form-input select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8'%3E%3Cpath fill='%239FB3C8' d='M6 8L0 0h12z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
}

.form-input option {
  background: #0D1B2E;
  color: var(--text-main);
}

.btn-submit {
  grid-column: span 2;
  padding: 14px;
  font-size: 1.05rem;
  margin-top: 8px;
}

.form-note {
  grid-column: span 2;
  text-align: center;
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 12px;
}

/* ============ 资讯列表 ============ */
.news-section {
  position: relative;
}

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

.news-card {
  display: flex;
  gap: 20px;
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-md);
  padding: 20px;
  transition: var(--transition);
  backdrop-filter: blur(8px);
}

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

.news-thumb {
  width: 120px;
  height: 90px;
  border-radius: var(--radius-sm);
  object-fit: cover;
  flex-shrink: 0;
}

.news-body {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
}

.news-body .badge {
  align-self: flex-start;
  font-size: 0.75rem;
  padding: 2px 10px;
  border-radius: 100px;
  border: 1px solid rgba(0,166,255,0.35);
  background: rgba(0,166,255,0.08);
  color: var(--primary);
  margin-bottom: 8px;
}

.news-body h3 {
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.5;
  margin-bottom: 6px;
  display: -webkit-box;
  -webkit-line-clamp: 1;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.news-body h3 a {
  color: var(--text-main);
}

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

.news-body p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 8px;
  flex-grow: 1;
}

.news-body .news-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.news-body .news-meta time {
  font-family: var(--font-num);
}

.news-empty {
  grid-column: span 2;
  text-align: center;
  padding: 60px 24px;
  border: 1px dashed var(--card-border);
  border-radius: var(--radius-lg);
  color: var(--text-muted);
  background: rgba(255,255,255,0.02);
}

/* ============ FAQ ============ */
.faq-section {
  position: relative;
}

.faq-layout {
  display: grid;
  grid-template-columns: 0.8fr 1.4fr;
  gap: 56px;
  align-items: start;
}

.faq-intro h2 {
  font-size: clamp(1.8rem, 2.5vw, 2.2rem);
  margin-bottom: 16px;
  font-weight: 800;
}

.faq-intro p {
  color: var(--text-secondary);
  margin-bottom: 24px;
}

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

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

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

.faq-item.open {
  background: var(--card-bg-hover);
}

.faq-question {
  width: 100%;
  background: none;
  border: none;
  padding: 20px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  color: var(--text-main);
  font-size: 0.95rem;
  font-weight: 600;
  text-align: left;
}

.faq-question .faq-icon {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  border: 1px solid rgba(0,166,255,0.3);
  background: rgba(0,166,255,0.1);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  flex-shrink: 0;
}

.faq-question .faq-arrow {
  width: 20px;
  height: 20px;
  border-right: 2px solid var(--text-muted);
  border-bottom: 2px solid var(--text-muted);
  transform: rotate(45deg);
  transition: var(--transition);
  margin-bottom: -6px;
  flex-shrink: 0;
}

.faq-item.open .faq-arrow {
  transform: rotate(-135deg);
  border-color: var(--primary);
}

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

.faq-answer-inner {
  padding: 0 24px 20px;
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.75;
}

/* ============ 页脚 ============ */
.site-footer {
  background: var(--bg-footer);
  border-top: 1px solid rgba(255,255,255,0.06);
  padding: 80px 0 0;
  margin-top: 60px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 56px;
}

.footer-brand p {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-top: 16px;
  line-height: 1.8;
}

.footer-social {
  display: flex;
  gap: 12px;
  margin-top: 20px;
}

.footer-social .social-link {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.1);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  transition: var(--transition);
}

.footer-social .social-link:hover {
  color: var(--primary);
  border-color: rgba(0,166,255,0.4);
  transform: translateY(-2px);
}

.footer-col h4 {
  font-size: 1rem;
  color: var(--text-main);
  margin-bottom: 24px;
  font-weight: 600;
}

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

.footer-col ul li {
  margin-bottom: 12px;
}

.footer-col ul a {
  color: var(--text-muted);
  font-size: 0.9rem;
  transition: var(--transition);
}

.footer-col ul a:hover {
  color: var(--primary);
  padding-left: 4px;
}

.footer-contact li {
  display: flex;
  gap: 10px;
  color: var(--text-muted);
  font-size: 0.9rem;
  align-items: flex-start;
}

.footer-contact li i {
  color: var(--primary);
  margin-top: 4px;
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.05);
  padding: 24px 0;
  text-align: center;
  color: var(--text-muted);
  font-size: 0.85rem;
}

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

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

/* ============ 响应式 ============ */
@media (max-width: 1024px) {
  .trust-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
  }

  .bento-grid {
    grid-template-columns: repeat(2, 1fr);
    grid-auto-rows: 240px;
  }

  .bento-large {
    grid-column: span 1;
    grid-row: span 2;
  }

  .bento-wide {
    grid-column: span 2;
  }

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

  .pricing-card.featured {
    order: -1;
    grid-column: span 2;
  }

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

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

@media (max-width: 768px) {
  .section {
    padding: var(--section-gap-mobile) 0;
  }

  .main-nav {
    display: none;
  }

  .nav-cta .btn {
    display: none;
  }

  .hamburger {
    display: flex;
  }

  .mobile-menu {
    display: flex;
  }

  .hero {
    min-height: 580px;
    padding: 100px 0 60px;
  }

  .hero h1 {
    font-size: clamp(1.8rem, 5vw, 2.4rem);
  }

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

  .hero-stats-mini {
    gap: 20px;
  }

  .timeline::before {
    left: 20px;
  }

  .timeline-item {
    width: 100% !important;
    left: 0 !important;
    padding: 0 0 24px 56px !important;
    text-align: left !important;
  }

  .timeline-item:nth-child(odd) .timeline-dot,
  .timeline-item:nth-child(even) .timeline-dot {
    left: 11px;
    right: auto;
  }

  .bento-grid {
    grid-template-columns: 1fr;
    grid-auto-rows: auto;
  }

  .bento-item {
    min-height: 220px;
  }

  .bento-large,
  .bento-wide,
  .bento-tall {
    grid-column: span 1;
    grid-row: span 1;
  }

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

  .pricing-card.featured {
    grid-column: span 1;
    order: 0;
  }

  .pricing-card.featured:hover {
    transform: translateY(-6px);
  }

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

  .form-group.full,
  .btn-submit,
  .form-note {
    grid-column: span 1;
  }

  .signup-card {
    padding: 28px 20px;
  }

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

  .news-empty {
    grid-column: span 1;
  }

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

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

  .brand {
    font-size: 1.15rem;
  }

  .brand-icon {
    width: 32px;
    height: 32px;
  }

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

  .hero-actions .btn {
    width: 100%;
  }

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

  .news-card {
    flex-direction: column;
  }

  .news-thumb {
    width: 100%;
    height: 160px;
  }

  .section-header {
    margin-bottom: 36px;
  }

  .section-header p {
    font-size: 0.9rem;
  }

  .faq-question {
    padding: 16px;
    font-size: 0.9rem;
  }
}

/* roulang page: category1 */
:root{
  --bg-primary:#0A1626;
  --bg-secondary:#0D1B2E;
  --bg-card:rgba(255,255,255,0.05);
  --bg-card-hover:rgba(255,255,255,0.08);
  --border:rgba(255,255,255,0.12);
  --border-light:rgba(255,255,255,0.08);
  --primary:#00A6FF;
  --primary-deep:#0066FF;
  --gold:#F5B841;
  --text-main:#EAF2FA;
  --text-secondary:#9FB3C8;
  --text-muted:#687D92;
  --success:#2BD576;
  --warning:#FFA940;
  --danger:#FF5C5C;
  --radius-lg:20px;
  --radius-md:16px;
  --radius-sm:12px;
  --radius-xs:8px;
  --shadow-card:0 8px 32px rgba(0,0,0,0.35);
  --shadow-glow:0 0 24px rgba(0,166,255,0.35);
  --shadow-glow-hover:0 0 40px rgba(0,166,255,0.5);
  --font-mono:'DIN Alternate','Roboto Mono',Consolas,monospace;
  --font-main:'PingFang SC','Microsoft YaHei','Noto Sans SC',-apple-system,sans-serif;
  --header-h:72px;
  --max-w:1200px;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;font-size:16px}
body{
  font-family:var(--font-main);
  background:linear-gradient(180deg,#0A1626 0%,#0D1B2E 50%,#0A1626 100%);
  color:var(--text-main);
  line-height:1.75;
  min-height:100vh;
  -webkit-font-smoothing:antialiased;
}
a{color:var(--primary);text-decoration:none;transition:color .25s}
a:hover{color:#4dc3ff}
a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
img{max-width:100%;display:block}
ul,ol{list-style:none}
button{font-family:inherit;cursor:pointer;border:none;background:none}
.container{max-width:var(--max-w);margin:0 auto;padding:0 24px}
.section{padding:88px 0}
.section-header{text-align:center;max-width:680px;margin:0 auto 56px}
.section-header .tag{display:inline-block;font-size:.8rem;font-weight:600;color:var(--primary);background:rgba(0,166,255,0.1);border:1px solid rgba(0,166,255,0.25);padding:4px 16px;border-radius:100px;margin-bottom:16px;letter-spacing:.5px}
.section-header h2{font-size:1.75rem;font-weight:800;line-height:1.3;letter-spacing:-.01em}
.section-header p{color:var(--text-secondary);font-size:.95rem;margin-top:12px}

/* ===== Buttons ===== */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-weight:600;font-size:.9rem;line-height:1;padding:13px 28px;border-radius:var(--radius-sm);cursor:pointer;transition:all .3s ease;border:1px solid transparent;white-space:nowrap}
.btn-primary{background:linear-gradient(135deg,#00A6FF,#0066FF);color:#fff;box-shadow:var(--shadow-glow)}
.btn-primary:hover{color:#fff;box-shadow:var(--shadow-glow-hover);transform:translateY(-2px)}
.btn-ghost{background:rgba(255,255,255,0.06);border-color:rgba(255,255,255,0.16);color:var(--text-main);backdrop-filter:blur(8px)}
.btn-ghost:hover{background:rgba(255,255,255,0.1);border-color:rgba(255,255,255,0.28);color:#fff;transform:translateY(-2px)}
.btn-lg{padding:16px 38px;font-size:1rem;border-radius:var(--radius-md)}
.btn-sm{padding:8px 18px;font-size:.8rem}
.btn-gold{background:linear-gradient(135deg,#F5B841,#E0912A);color:#1a1a1a;box-shadow:0 0 20px rgba(245,184,65,0.3)}
.btn-gold:hover{box-shadow:0 0 32px rgba(245,184,65,0.45);color:#1a1a1a;transform:translateY(-2px)}
.btn:active{transform:translateY(0) scale(.98)}

/* ===== Header ===== */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1000;
  background:rgba(10,22,38,0.85);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid rgba(255,255,255,0.08);
  height:var(--header-h);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:var(--header-h)}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--text-main);font-weight:800;font-size:1.15rem;letter-spacing:.02em}
.brand:hover{color:#fff}
.brand-icon{
  display:inline-flex;align-items:center;justify-content:center;
  width:36px;height:36px;border-radius:10px;
  background:linear-gradient(135deg,#00A6FF,#0066FF);
  box-shadow:0 0 18px rgba(0,166,255,0.4);
  color:#fff;flex-shrink:0;
}
.main-nav{display:flex;align-items:center;gap:4px}
.nav-link{
  display:inline-block;padding:8px 16px;border-radius:8px;
  color:var(--text-secondary);font-size:.9rem;font-weight:500;
  transition:all .25s;
}
.nav-link:hover{color:var(--text-main);background:rgba(255,255,255,0.06)}
.nav-link.active{color:var(--primary);background:rgba(0,166,255,0.1)}
.nav-cta{margin-left:8px}
.nav-toggle{display:none;width:42px;height:42px;border-radius:10px;background:rgba(255,255,255,0.06);align-items:center;justify-content:center;border:1px solid rgba(255,255,255,0.12)}
.nav-toggle svg{width:20px;height:20px;stroke:#EAF2FA}

/* ===== Hero ===== */
.hero-narrow{
  position:relative;
  padding:140px 0 72px;
  background:
    linear-gradient(90deg, rgba(10,22,38,0.97) 0%, rgba(10,22,38,0.82) 50%, rgba(10,22,38,0.6) 100%),
    url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  border-bottom:1px solid rgba(255,255,255,0.06);
}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  background:rgba(255,255,255,0.07);
  border:1px solid rgba(0,166,255,0.3);
  color:var(--primary);
  padding:5px 16px;border-radius:100px;
  font-size:.8rem;font-weight:600;letter-spacing:1px;
  margin-bottom:20px;
  backdrop-filter:blur(6px);
}
.hero-badge::before{content:'';width:6px;height:6px;border-radius:50%;background:var(--primary);box-shadow:0 0 8px var(--primary)}
.hero-narrow h1{
  font-size:clamp(2rem,4.2vw,3rem);
  font-weight:900;
  line-height:1.2;
  letter-spacing:-.02em;
  margin-bottom:16px;
}
.hero-narrow h1 .highlight{
  background:linear-gradient(135deg,#5cc8ff,#00A6FF);
  -webkit-background-clip:text;
  -webkit-text-fill-color:transparent;
  background-clip:text;
}
.hero-subtitle{font-size:1.05rem;color:var(--text-secondary);max-width:540px;margin-bottom:32px}
.hero-actions{display:flex;gap:16px;flex-wrap:wrap}
.hero-meta{
  display:flex;align-items:center;gap:24px;margin-top:48px;
  color:var(--text-muted);font-size:.8rem;flex-wrap:wrap;
}
.hero-meta span{display:inline-flex;align-items:center;gap:6px}
.hero-meta svg{width:16px;height:16px;stroke:var(--primary)}

/* ===== Anchor Nav ===== */
.anchor-nav{
  position:sticky;top:var(--header-h);z-index:600;
  background:rgba(10,22,38,0.92);
  backdrop-filter:blur(12px);
  border-bottom:1px solid rgba(255,255,255,0.06);
}
.anchor-nav-inner{display:flex;align-items:center;gap:4px;overflow-x:auto;padding:0 24px;scrollbar-width:none}
.anchor-nav-inner::-webkit-scrollbar{display:none}
.anchor-nav-inner a{
  flex-shrink:0;
  padding:12px 20px;
  color:var(--text-secondary);
  font-size:.85rem;font-weight:500;
  border-bottom:2px solid transparent;
  transition:all .25s;
}
.anchor-nav-inner a:hover{color:var(--text-main)}
.anchor-nav-inner a.active{
  color:var(--primary);
  border-bottom-color:var(--primary);
  background:rgba(0,166,255,0.06);
}

/* ===== Feature Cards ===== */
.features-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;margin-bottom:40px}
.feature-card{
  background:var(--bg-card);
  border:1px solid var(--border);
  border-radius:var(--radius-lg);
  padding:40px 32px;
  backdrop-filter:blur(10px);
  box-shadow:var(--shadow-card),inset 0 1px 0 rgba(255,255,255,0.06);
  transition:all .3s ease;
  position:relative;
  overflow:hidden;
}
.feature-card::before{
  content:'';position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,0.15),transparent);
}
.feature-card:hover{
  transform:translateY(-4px);
  background:var(--bg-card-hover);
  border-color:rgba(255,255,255,0.18);
  box-shadow:0 12px 40px rgba(0,0,0,0.45),inset 0 1px 0 rgba(255,255,255,0.1);
}
.feature-icon{
  width:52px;height:52px;border-radius:14px;
  background:linear-gradient(135deg,rgba(0,166,255,0.2),rgba(0,102,255,0.1));
  border:1px solid rgba(0,166,255,0.25);
  display:flex;align-items:center;justify-content:center;
  margin-bottom:20px;
  box-shadow:0 0 20px rgba(0,166,255,0.15);
}
.feature-icon svg{width:24px;height:24px;stroke:var(--primary);fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.feature-card h3{font-size:1.15rem;font-weight:700;margin-bottom:10px}
.feature-card p{color:var(--text-secondary);font-size:.9rem;line-height:1.7}
.card-link{
  display:inline-flex;align-items:center;gap:6px;
  margin-top:18px;font-size:.85rem;font-weight:600;color:var(--primary);
}
.card-link:hover{color:#5cc8ff}
.card-link span{transition:transform .25s}
.card-link:hover span{transform:translateX(4px)}
.extras-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.extra-item{
  display:flex;align-items:flex-start;gap:12px;
  background:rgba(255,255,255,0.03);
  border:1px solid rgba(255,255,255,0.08);
  border-radius:var(--radius-sm);
  padding:16px 20px;
  font-size:.88rem;
  color:var(--text-secondary);
  transition:all .25s;
}
.extra-item:hover{background:rgba(255,255,255,0.05);border-color:rgba(255,255,255,0.15);color:var(--text-main)}
.extra-item svg{width:18px;height:18px;stroke:var(--success);fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;flex-shrink:0;margin-top:3px}

/* ===== Showcase ===== */
.showcase-section{
  background:
    radial-gradient(ellipse at 90% 20%, rgba(0,166,255,0.08), transparent 60%),
    radial-gradient(ellipse at 10% 80%, rgba(245,184,65,0.05), transparent 50%);
}
.showcase-grid{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center}
.showcase-media{position:relative;border-radius:var(--radius-lg);overflow:hidden;box-shadow:0 20px 60px rgba(0,0,0,0.5),0 0 40px rgba(0,166,255,0.1);border:1px solid rgba(255,255,255,0.1)}
.showcase-media img{width:100%;height:100%;object-fit:cover}
.showcase-media::after{
  content:'';position:absolute;inset:0;
  background:linear-gradient(180deg,transparent 60%,rgba(10,22,38,0.6) 100%);
  pointer-events:none;
}
.showcase-media .media-caption{
  position:absolute;left:20px;right:20px;bottom:16px;
  font-size:.8rem;color:rgba(255,255,255,0.8);
  z-index:2;
}
.showcase-content .tag{
  display:inline-block;font-size:.78rem;font-weight:600;color:var(--gold);
  background:rgba(245,184,65,0.1);border:1px solid rgba(245,184,65,0.25);
  padding:4px 14px;border-radius:100px;margin-bottom:18px;letter-spacing:.5px;
}
.showcase-content h2{font-size:1.7rem;font-weight:800;line-height:1.35;margin-bottom:16px}
.showcase-content > p{color:var(--text-secondary);font-size:.95rem;margin-bottom:24px}
.check-list{display:flex;flex-direction:column;gap:12px}
.check-list li{
  display:flex;align-items:flex-start;gap:10px;
  font-size:.9rem;color:var(--text-secondary);
}
.check-list svg{width:18px;height:18px;stroke:var(--success);fill:none;stroke-width:2.2;stroke-linecap:round;stroke-linejoin:round;flex-shrink:0;margin-top:4px}
.check-list li strong{color:var(--text-main);font-weight:600}

/* ===== Metrics ===== */
.metrics-section{
  background:linear-gradient(180deg,transparent,rgba(0,102,255,0.05) 50%,transparent);
  border-top:1px solid rgba(255,255,255,0.04);
  border-bottom:1px solid rgba(255,255,255,0.04);
}
.metrics-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.metric-card{
  text-align:center;
  background:rgba(255,255,255,0.04);
  border:1px solid rgba(255,255,255,0.08);
  border-radius:var(--radius-md);
  padding:40px 20px;
  transition:all .3s;
  position:relative;
  overflow:hidden;
}
.metric-card::after{
  content:'';position:absolute;bottom:0;left:50%;transform:translateX(-50%);
  width:60px;height:2px;
  background:linear-gradient(90deg,transparent,var(--primary),transparent);
  border-radius:2px;
}
.metric-card:hover{background:rgba(255,255,255,0.07);border-color:rgba(255,255,255,0.16);transform:translateY(-3px)}
.metric-value{
  font-family:var(--font-mono);
  font-size:2.2rem;font-weight:700;
  letter-spacing:-.02em;
  margin-bottom:6px;
  background:linear-gradient(135deg,#5cc8ff,#00A6FF);
  -webkit-background-clip:text;
  -webkit-text-fill-color:transparent;
  background-clip:text;
}
.metric-card.metric-gold .metric-value{
  background:linear-gradient(135deg,#F5B841,#E0912A);
  -webkit-background-clip:text;
  -webkit-text-fill-color:transparent;
  background-clip:text;
}
.metric-label{font-size:.95rem;font-weight:600;color:var(--text-main);margin-bottom:4px}
.metric-card p{font-size:.78rem;color:var(--text-muted)}

/* ===== Comparison ===== */
.comparison-section{position:relative}
.table-wrapper{
  overflow-x:auto;
  border-radius:var(--radius-lg);
  border:1px solid rgba(255,255,255,0.1);
  box-shadow:var(--shadow-card);
  background:rgba(255,255,255,0.02);
}
.compare-table{width:100%;min-width:720px;border-collapse:collapse;font-size:.88rem}
.compare-table thead th{
  padding:20px 24px;text-align:left;
  font-weight:700;color:var(--text-main);
  background:rgba(255,255,255,0.04);
  border-bottom:1px solid rgba(255,255,255,0.1);
}
.compare-table thead th:first-child{color:var(--text-muted);font-weight:500}
.compare-table td{
  padding:16px 24px;
  border-bottom:1px solid rgba(255,255,255,0.05);
  color:var(--text-secondary);
  vertical-align:middle;
}
.compare-table tr:last-child td{border-bottom:none}
.compare-table tbody tr:hover{background:rgba(255,255,255,0.03)}
.gopay-col{background:rgba(0,166,255,0.05);border-left:2px solid rgba(0,166,255,0.5);border-right:2px solid rgba(0,166,255,0.2)}
.gopay-col td{color:var(--text-main)}
.gopay-col .badge{
  display:inline-block;
  background:linear-gradient(135deg,#F5B841,#E0912A);
  color:#1a1a1a;font-size:.68rem;font-weight:700;
  padding:2px 10px;border-radius:100px;
  margin-left:8px;letter-spacing:.5px;
  box-shadow:0 0 12px rgba(245,184,65,0.3);
}
.compare-table .check{color:var(--success);font-weight:700}
.compare-table .cross{color:var(--text-muted);font-weight:700}
.compare-note{text-align:center;color:var(--text-muted);font-size:.8rem;margin-top:16px}

/* ===== Workflow ===== */
.workflow-section{
  background:
    radial-gradient(ellipse at 20% 80%, rgba(0,166,255,0.07), transparent 50%),
    transparent;
}
.workflow-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;position:relative}
.workflow-grid::before{
  content:'';position:absolute;top:36px;left:12%;right:12%;
  height:1px;
  background:linear-gradient(90deg,transparent,rgba(0,166,255,0.4),transparent);
}
.workflow-step{
  position:relative;
  text-align:center;
  padding:0 12px;
}
.step-dot{
  width:72px;height:72px;border-radius:50%;
  background:rgba(10,22,38,0.9);
  border:1px solid rgba(0,166,255,0.4);
  display:flex;align-items:center;justify-content:center;
  margin:0 auto 20px;
  box-shadow:0 0 20px rgba(0,166,255,0.2);
  position:relative;z-index:2;
}
.step-dot span{
  font-family:var(--font-mono);
  font-size:1.2rem;font-weight:700;
  color:var(--primary);
}
.workflow-step h3{font-size:1rem;font-weight:700;margin-bottom:8px}
.workflow-step p{font-size:.82rem;color:var(--text-secondary);line-height:1.65}

/* ===== FAQ ===== */
.faq-layout{display:grid;grid-template-columns:320px 1fr;gap:56px;align-items:start}
.faq-sidebar{position:sticky;top:160px}
.faq-sidebar h2{font-size:1.6rem;font-weight:800;line-height:1.3;margin-bottom:12px}
.faq-sidebar p{color:var(--text-secondary);font-size:.9rem;margin-bottom:24px}
.faq-sidebar .btn{width:100%}
.faq-list{display:flex;flex-direction:column;gap:14px}
.accordion-item{
  background:var(--bg-card);
  border:1px solid var(--border);
  border-radius:var(--radius-md);
  overflow:hidden;
  transition:all .3s;
  backdrop-filter:blur(8px);
}
.accordion-item:hover{border-color:rgba(255,255,255,0.22)}
.accordion-item.open{background:rgba(255,255,255,0.07);border-color:rgba(0,166,255,0.3)}
.accordion-header{
  width:100%;display:flex;align-items:center;gap:14px;
  padding:20px 24px;
  text-align:left;
  color:var(--text-main);
  font-size:.95rem;font-weight:600;
  transition:background .25s;
}
.accordion-header:hover{background:rgba(255,255,255,0.03)}
.accordion-q-icon{
  width:28px;height:28px;flex-shrink:0;
  border-radius:50%;
  border:1px solid rgba(0,166,255,0.35);
  background:rgba(0,166,255,0.1);
  color:var(--primary);
  display:flex;align-items:center;justify-content:center;
  font-size:.75rem;font-weight:700;
}
.accordion-arrow{
  margin-left:auto;flex-shrink:0;
  width:20px;height:20px;
  transition:transform .3s;
  color:var(--text-muted);
}
.accordion-item.open .accordion-arrow{transform:rotate(180deg);color:var(--primary)}
.accordion-body{
  max-height:0;overflow:hidden;
  transition:max-height .35s ease;
}
.accordion-body-inner{padding:0 24px 22px 66px;color:var(--text-secondary);font-size:.88rem;line-height:1.8}

/* ===== CTA ===== */
.cta-section{padding:80px 0 100px}
.cta-card{
  position:relative;
  background:
    radial-gradient(ellipse at 80% 120%, rgba(0,166,255,0.2), transparent 60%),
    radial-gradient(ellipse at 10% 10%, rgba(245,184,65,0.08), transparent 50%),
    rgba(255,255,255,0.05);
  border:1px solid rgba(255,255,255,0.14);
  border-radius:28px;
  padding:72px 48px;
  text-align:center;
  backdrop-filter:blur(16px);
  box-shadow:var(--shadow-card),inset 0 1px 0 rgba(255,255,255,0.08);
  overflow:hidden;
}
.cta-card::before{
  content:'';position:absolute;top:0;left:50%;transform:translateX(-50%);
  width:200px;height:1px;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,0.4),transparent);
}
.cta-card h2{font-size:clamp(1.5rem,3vw,2.1rem);font-weight:800;margin-bottom:12px}
.cta-card p{color:var(--text-secondary);font-size:.95rem;margin-bottom:36px}
.cta-actions{display:flex;gap:16px;justify-content:center;flex-wrap:wrap}
.cta-note{margin-top:24px;font-size:.78rem;color:var(--text-muted)}
.cta-note a{color:var(--text-muted);text-decoration:underline}
.cta-note a:hover{color:var(--text-secondary)}

/* ===== Footer ===== */
.site-footer{
  background:#070F1A;
  border-top:1px solid rgba(255,255,255,0.06);
  padding:64px 0 0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 0.8fr 0.8fr 1fr;
  gap:48px;
  padding-bottom:48px;
}
.footer-brand .brand{margin-bottom:16px}
.footer-brand p{color:var(--text-secondary);font-size:.85rem;line-height:1.75;margin-bottom:20px;max-width:280px}
.footer-social{display:flex;gap:10px}
.social-link{
  width:36px;height:36px;border-radius:10px;
  background:rgba(255,255,255,0.06);
  border:1px solid rgba(255,255,255,0.1);
  display:flex;align-items:center;justify-content:center;
  color:var(--text-secondary);
  transition:all .25s;
}
.social-link:hover{color:var(--primary);border-color:rgba(0,166,255,0.4);background:rgba(0,166,255,0.1);transform:translateY(-2px)}
.footer-col h4{
  font-size:.9rem;font-weight:700;color:var(--text-main);
  margin-bottom:18px;
  letter-spacing:.02em;
}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a, .footer-col li{
  color:var(--text-secondary);font-size:.84rem;
  transition:color .2s;
}
.footer-col a:hover{color:var(--primary)}
.contact-list li{
  display:flex;align-items:flex-start;gap:8px;
  color:var(--text-secondary);font-size:.84rem;
  line-height:1.6;
}
.contact-list svg{width:16px;height:16px;stroke:var(--text-muted);flex-shrink:0;margin-top:4px}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,0.05);
  padding:20px 0;
  display:flex;align-items:center;justify-content:space-between;
  font-size:.78rem;color:var(--text-muted);
  flex-wrap:wrap;gap:8px;
}
.footer-bottom a{
  color:var(--text-muted);
  border-bottom:1px solid rgba(255,255,255,0.1);
  transition:color .2s;
}
.footer-bottom a:hover{color:var(--text-secondary)}
.footer-icp{color:var(--text-muted)}

/* ===== Mobile Menu ===== */
.mobile-drawer{
  position:fixed;top:var(--header-h);right:0;bottom:0;left:0;
  background:rgba(10,22,38,0.98);
  backdrop-filter:blur(20px);
  z-index:999;
  display:flex;flex-direction:column;
  padding:32px 24px 48px;
  transform:translateX(100%);
  transition:transform .35s ease;
  overflow-y:auto;
}
.mobile-drawer.open{transform:translateX(0)}
.mobile-drawer .nav-link{
  font-size:1.05rem;padding:14px 12px;
  border-radius:12px;
}
.mobile-drawer .nav-link.active{background:rgba(0,166,255,0.12)}
.mobile-drawer .mobile-cta{
  margin-top:auto;padding-top:32px;
}
.mobile-drawer .btn{width:100%;font-size:1rem;padding:15px}
.mobile-drawer .drawer-social{
  display:flex;gap:10px;justify-content:center;margin-top:24px;
}
.mobile-drawer .drawer-social .social-link{width:42px;height:42px}

/* ===== Responsive ===== */
@media (max-width:1024px){
  .container{padding:0 20px}
  .section{padding:72px 0}
  .showcase-grid{gap:40px}
  .metrics-grid{grid-template-columns:repeat(2,1fr);gap:16px}
  .workflow-grid{grid-template-columns:repeat(2,1fr);gap:40px 24px}
  .workflow-grid::before{display:none}
  .faq-layout{grid-template-columns:1fr;gap:32px}
  .faq-sidebar{position:static}
  .faq-sidebar .btn{width:auto}
}
@media (max-width:768px){
  :root{--header-h:64px}
  .section{padding:56px 0}
  .main-nav,.nav-cta{display:none}
  .nav-toggle{display:inline-flex}
  .hero-narrow{padding:110px 0 56px}
  .hero-actions{flex-direction:column;align-items:stretch}
  .hero-actions .btn{width:100%}
  .features-grid{grid-template-columns:1fr;gap:16px}
  .extras-grid{grid-template-columns:1fr;gap:12px}
  .showcase-grid{grid-template-columns:1fr;gap:32px}
  .showcase-media{order:2}
  .showcase-content{order:1}
  .anchor-nav-inner{padding:0 12px}
  .anchor-nav-inner a{padding:10px 14px;font-size:.8rem}
  .cta-card{padding:48px 20px}
  .cta-actions{flex-direction:column;align-items:stretch}
  .cta-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .footer-brand{grid-column:1/-1}
  .footer-bottom{flex-direction:column;text-align:center}
}
@media (max-width:520px){
  .container{padding:0 16px}
  .metrics-grid{grid-template-columns:1fr}
  .workflow-grid{grid-template-columns:1fr;gap:32px}
  .footer-grid{grid-template-columns:1fr;gap:24px}
  .cta-card{padding:40px 16px}
  .section-header h2{font-size:1.4rem}
  .hero-narrow h1{font-size:1.7rem}
  .feature-card{padding:28px 20px}
}

/* roulang page: article */
:root {
  --bg-primary: #0A1626;
  --bg-secondary: #0D1B2E;
  --accent-blue: #00A6FF;
  --accent-blue-dark: #0066FF;
  --accent-gold: #F5B841;
  --success-green: #2BD576;
  --warning-orange: #FFA940;
  --error-red: #FF5C5C;
  --text-primary: #EAF2FA;
  --text-secondary: #9FB3C8;
  --text-muted: #687D92;
  --glass-bg: rgba(255,255,255,0.05);
  --glass-bg-hover: rgba(255,255,255,0.08);
  --glass-border: rgba(255,255,255,0.12);
  --radius-lg: 20px;
  --radius-md: 16px;
  --radius-sm: 8px;
  --shadow-glass: 0 8px 32px rgba(0,0,0,0.35), inset 0 1px 0 rgba(255,255,255,0.08);
  --shadow-glow: 0 0 24px rgba(0,166,255,0.35);
  --shadow-glow-hover: 0 0 40px rgba(0,166,255,0.5);
  --font-family: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'DIN Alternate', 'Roboto Mono', 'SF Mono', monospace;
  --container-width: 1200px;
  --spacing-section: 80px;
  --spacing-mobile: 48px;
}
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
}
body {
  font-family: var(--font-family);
  background: var(--bg-primary);
  background-image: radial-gradient(ellipse at top left, rgba(0,166,255,0.08), transparent 50%), radial-gradient(ellipse at bottom right, rgba(0,102,255,0.05), transparent 50%);
  color: var(--text-primary);
  line-height: 1.75;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}
img {
  max-width: 100%;
  display: block;
}
a {
  color: var(--accent-blue);
  text-decoration: none;
  transition: color 0.3s ease;
}
a:hover {
  color: var(--accent-blue-dark);
}
button {
  font-family: inherit;
  cursor: pointer;
}
input, select, textarea {
  font-family: inherit;
}
.container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
}
.container-narrow {
  max-width: 860px;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 24px;
  border-radius: 12px;
  font-size: 15px;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: all 0.3s ease;
  line-height: 1.4;
  text-decoration: none;
  white-space: nowrap;
}
.btn-glow {
  background: linear-gradient(135deg, var(--accent-blue), var(--accent-blue-dark));
  color: #fff;
  box-shadow: var(--shadow-glow);
}
.btn-glow:hover {
  box-shadow: var(--shadow-glow-hover);
  transform: translateY(-2px);
  color: #fff;
}
.btn-glass {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  color: var(--text-primary);
  backdrop-filter: blur(8px);
}
.btn-glass:hover {
  background: var(--glass-bg-hover);
  border-color: rgba(255,255,255,0.2);
  color: var(--text-primary);
  transform: translateY(-2px);
}
.badge {
  display: inline-flex;
  align-items: center;
  padding: 3px 12px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 500;
  background: rgba(0,166,255,0.1);
  border: 1px solid rgba(0,166,255,0.3);
  color: var(--accent-blue);
}

/* ===== Header & Navigation ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(10,22,38,0.82);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  gap: 24px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
  text-decoration: none;
  letter-spacing: 0.3px;
}
.brand-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--accent-blue), var(--accent-blue-dark));
  box-shadow: var(--shadow-glow);
  color: #fff;
  flex-shrink: 0;
}
.brand-text {
  color: var(--text-primary);
  font-weight: 700;
  white-space: nowrap;
}
.main-nav {
  display: flex;
  align-items: center;
  gap: 4px;
}
.nav-link {
  display: inline-flex;
  align-items: center;
  padding: 8px 16px;
  border-radius: 10px;
  color: var(--text-secondary);
  font-size: 15px;
  font-weight: 500;
  transition: all 0.3s ease;
  text-decoration: none;
}
.nav-link:hover {
  color: var(--text-primary);
  background: rgba(255,255,255,0.06);
}
.nav-link.active {
  color: var(--accent-blue);
  background: rgba(0,166,255,0.1);
}
.nav-link:focus-visible {
  outline: 2px solid var(--accent-blue);
  outline-offset: 2px;
}
.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}
.nav-cta {
  padding: 9px 22px;
  font-size: 14px;
}
.hamburger {
  display: none;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border-radius: 10px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  color: var(--text-primary);
  transition: all 0.3s ease;
}
.hamburger:hover {
  background: var(--glass-bg-hover);
  border-color: rgba(255,255,255,0.2);
}
.hamburger.active {
  color: var(--accent-blue);
  border-color: rgba(0,166,255,0.4);
}
.mobile-drawer {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(10,22,38,0.97);
  backdrop-filter: blur(20px);
  z-index: 200;
  flex-direction: column;
  padding: 90px 32px 40px;
  overflow-y: auto;
}
.mobile-drawer.open {
  display: flex;
}
.mobile-nav {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.mobile-nav-link {
  display: block;
  padding: 14px 16px;
  border-radius: 12px;
  font-size: 18px;
  color: var(--text-primary);
  transition: all 0.3s ease;
  border: 1px solid transparent;
}
.mobile-nav-link:hover {
  background: var(--glass-bg);
  border-color: var(--glass-border);
  color: var(--accent-blue);
}
.mobile-nav-link.active {
  color: var(--accent-blue);
  background: rgba(0,166,255,0.1);
  border-color: rgba(0,166,255,0.3);
}
.mobile-cta {
  margin-top: 24px;
  width: 100%;
  padding: 14px;
  font-size: 16px;
}

/* ===== Page Hero (Article Header) ===== */
.page-hero {
  position: relative;
  padding: 72px 0 56px;
  background-image: linear-gradient(135deg, rgba(10,22,38,0.85) 0%, rgba(10,22,38,0.75) 40%, rgba(13,27,46,0.92) 100%), url('/assets/images/backpic/back-2.webp');
  background-size: cover;
  background-position: center;
  border-bottom: 1px solid rgba(255,255,255,0.06);
  overflow: hidden;
}
.page-hero::before {
  content: '';
  position: absolute;
  top: -40%;
  right: -10%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(0,166,255,0.12), transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}
.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 20px;
  font-size: 14px;
  color: var(--text-muted);
}
.breadcrumb a {
  color: var(--text-secondary);
  text-decoration: none;
  transition: color 0.3s;
}
.breadcrumb a:hover {
  color: var(--accent-blue);
}
.breadcrumb-sep {
  color: var(--text-muted);
  opacity: 0.6;
}
.breadcrumb-current {
  color: var(--text-secondary);
  max-width: 260px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.page-title {
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  font-weight: 800;
  line-height: 1.3;
  color: var(--text-primary);
  margin-bottom: 16px;
  letter-spacing: 0.5px;
}
.article-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 14px;
  font-size: 14px;
  color: var(--text-muted);
}
.publish-time {
  color: var(--text-secondary);
  font-family: var(--font-mono);
  font-size: 14px;
}
.meta-reading {
  color: var(--text-muted);
  font-size: 14px;
}

/* ===== Article Main ===== */
.article-main {
  padding: var(--spacing-section) 0;
}
.article-layout {
  max-width: 860px;
  margin: 0 auto;
}
.article-content {
  font-size: 16px;
  line-height: 1.75;
  color: var(--text-primary);
}
.article-content > * + * {
  margin-top: 1.2em;
}
.article-content h2 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-top: 2.4em;
  padding-bottom: 0.4em;
  border-bottom: 1px solid rgba(255,255,255,0.08);
  color: var(--text-primary);
  line-height: 1.4;
}
.article-content h3 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-top: 2em;
  color: var(--text-primary);
  line-height: 1.4;
}
.article-content h4 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-top: 1.6em;
  color: var(--text-primary);
}
.article-content p {
  margin: 1.2em 0;
  color: rgba(234,242,250,0.9);
  line-height: 1.85;
}
.article-content a {
  color: var(--accent-blue);
  text-decoration: underline;
  text-underline-offset: 4px;
  text-decoration-color: rgba(0,166,255,0.4);
}
.article-content a:hover {
  color: #4DC3FF;
  text-decoration-color: var(--accent-blue);
}
.article-content ul {
  list-style: none;
  padding-left: 0;
}
.article-content ul li {
  position: relative;
  padding-left: 24px;
  margin: 0.5em 0;
  color: rgba(234,242,250,0.9);
  line-height: 1.7;
}
.article-content ul li::before {
  content: '';
  position: absolute;
  left: 4px;
  top: 0.65em;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent-blue), var(--accent-blue-dark));
  box-shadow: 0 0 8px rgba(0,166,255,0.4);
}
.article-content ol {
  list-style: none;
  counter-reset: article-ol;
  padding-left: 0;
}
.article-content ol li {
  position: relative;
  counter-increment: article-ol;
  padding-left: 36px;
  margin: 0.5em 0;
  color: rgba(234,242,250,0.9);
  line-height: 1.7;
}
.article-content ol li::before {
  content: counter(article-ol);
  position: absolute;
  left: 0;
  top: 0.15em;
  width: 26px;
  height: 26px;
  border-radius: 8px;
  background: rgba(0,166,255,0.12);
  border: 1px solid rgba(0,166,255,0.25);
  color: var(--accent-blue);
  font-size: 13px;
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: center;
  line-height: 1;
}
.article-content blockquote {
  border-left: 3px solid var(--accent-blue);
  background: rgba(0,166,255,0.06);
  padding: 16px 20px;
  border-radius: 0 12px 12px 0;
  color: var(--text-secondary);
  font-size: 15px;
  line-height: 1.75;
}
.article-content blockquote p {
  margin: 0;
  color: inherit;
}
.article-content pre {
  background: rgba(0,0,0,0.45);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 12px;
  padding: 18px 20px;
  overflow-x: auto;
  font-family: var(--font-mono);
  font-size: 14px;
  line-height: 1.6;
  color: #BFDBF2;
}
.article-content code {
  font-family: var(--font-mono);
  background: rgba(0,166,255,0.1);
  padding: 2px 7px;
  border-radius: 5px;
  font-size: 0.9em;
  color: var(--accent-blue);
}
.article-content pre code {
  background: none;
  padding: 0;
  border-radius: 0;
  font-size: inherit;
  color: inherit;
}
.article-content img {
  max-width: 100%;
  border-radius: 14px;
  margin: 1.8em auto;
  box-shadow: 0 4px 24px rgba(0,0,0,0.4);
}
.article-content figure {
  margin: 1.8em 0;
}
.article-content figure img {
  margin: 0 auto;
}
.article-content figcaption {
  display: block;
  text-align: center;
  font-size: 14px;
  color: var(--text-muted);
  margin-top: 10px;
  line-height: 1.6;
}
.article-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.8em 0;
  font-size: 15px;
  border-radius: 12px;
  overflow: hidden;
}
.article-content th {
  background: rgba(0,166,255,0.08);
  border: 1px solid rgba(255,255,255,0.1);
  padding: 12px 16px;
  text-align: left;
  font-weight: 600;
  color: var(--text-primary);
  white-space: nowrap;
}
.article-content td {
  border: 1px solid rgba(255,255,255,0.08);
  padding: 11px 16px;
  text-align: left;
  color: rgba(234,242,250,0.85);
  line-height: 1.6;
}
.article-content tr:nth-child(even) td {
  background: rgba(255,255,255,0.02);
}
.article-content hr {
  border: none;
  height: 1px;
  background: linear-gradient(to right, transparent, rgba(255,255,255,0.15), transparent);
  margin: 2.5em 0;
}
.article-content strong {
  color: var(--text-primary);
  font-weight: 700;
}
.article-content em {
  color: var(--text-secondary);
}

/* ===== Not Found ===== */
.not-found {
  text-align: center;
  padding: 80px 20px;
  background: var(--glass-bg);
  border: 1px dashed rgba(255,255,255,0.15);
  border-radius: var(--radius-lg);
  margin: 20px 0;
}
.not-found-icon {
  display: inline-flex;
  margin-bottom: 20px;
  color: var(--text-muted);
  opacity: 0.6;
}
.not-found h2 {
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 12px;
}
.not-found p {
  color: var(--text-secondary);
  margin-bottom: 28px;
}

/* ===== Related Posts ===== */
.related-section {
  padding: 0 0 var(--spacing-section);
}
.section-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 28px;
  gap: 16px;
}
.section-head h2 {
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--text-primary);
  position: relative;
  padding-left: 16px;
}
.section-head h2::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 4px;
  height: 22px;
  border-radius: 4px;
  background: linear-gradient(180deg, var(--accent-blue), var(--accent-blue-dark));
  box-shadow: var(--shadow-glow);
}
.section-more {
  font-size: 14px;
  color: var(--accent-blue);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: all 0.3s;
}
.section-more:hover {
  color: #4DC3FF;
  gap: 10px;
}
.related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.related-card {
  display: block;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  text-decoration: none;
  transition: all 0.3s ease;
}
.related-card:hover {
  transform: translateY(-6px);
  border-color: rgba(255,255,255,0.18);
  box-shadow: var(--shadow-glass);
  text-decoration: none;
}
.related-cover {
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: rgba(0,0,0,0.2);
}
.related-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.45s ease;
}
.related-card:hover .related-cover img {
  transform: scale(1.05);
}
.related-body {
  padding: 18px;
}
.related-body h3 {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-primary);
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  min-height: 3em;
  margin-bottom: 12px;
  transition: color 0.3s;
}
.related-card:hover .related-body h3 {
  color: var(--accent-blue);
}
.related-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 13px;
  color: var(--text-muted);
  padding-top: 10px;
  border-top: 1px solid rgba(255,255,255,0.05);
}
.related-meta span {
  color: var(--text-secondary);
}

/* ===== Footer ===== */
.site-footer {
  background: #070F1A;
  border-top: 1px solid rgba(255,255,255,0.06);
  padding: 64px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 48px;
}
.footer-brand .brand {
  margin-bottom: 16px;
}
.footer-brand p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 20px;
  max-width: 320px;
}
.footer-social {
  display: flex;
  gap: 10px;
}
.social-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 10px;
  border: 1px solid rgba(255,255,255,0.08);
  background: rgba(255,255,255,0.04);
  color: var(--text-secondary);
  transition: all 0.3s ease;
}
.social-link:hover {
  color: var(--accent-blue);
  border-color: rgba(0,166,255,0.3);
  background: rgba(0,166,255,0.08);
  transform: translateY(-2px);
}
.footer-col h4 {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 18px;
  position: relative;
  padding-bottom: 10px;
}
.footer-col h4::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 28px;
  height: 2px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--accent-blue), transparent);
}
.footer-col ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.footer-col ul li {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
}
.footer-col ul a {
  color: var(--text-secondary);
  text-decoration: none;
  transition: color 0.3s;
  font-size: 14px;
}
.footer-col ul a:hover {
  color: var(--accent-blue);
}
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.06);
  padding: 22px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 13px;
  color: var(--text-muted);
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr 1fr;
  }
  .footer-brand {
    grid-column: 1 / -1;
  }
  .footer-brand p {
    max-width: 480px;
  }
  .related-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (max-width: 768px) {
  :root {
    --spacing-section: 48px;
  }
  .nav-inner {
    height: 64px;
  }
  .main-nav {
    display: none;
  }
  .nav-cta {
    display: none;
  }
  .hamburger {
    display: inline-flex;
  }
  .page-hero {
    padding: 48px 0 40px;
  }
  .page-title {
    font-size: 1.6rem;
  }
  .article-main {
    padding: 40px 0 48px;
  }
  .article-content {
    font-size: 15px;
  }
  .article-content h2 {
    font-size: 1.35rem;
  }
  .article-content h3 {
    font-size: 1.15rem;
  }
  .related-grid {
    grid-template-columns: 1fr;
  }
  .section-head {
    flex-direction: row;
    align-items: center;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
    padding-bottom: 36px;
  }
  .footer-brand {
    grid-column: 1;
  }
  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
    gap: 6px;
  }
}
@media (max-width: 520px) {
  .container {
    padding: 0 16px;
  }
  .brand-text {
    font-size: 1.1rem;
  }
  .page-hero {
    padding: 36px 0 32px;
  }
  .breadcrumb {
    font-size: 13px;
  }
  .page-title {
    font-size: 1.4rem;
  }
  .article-meta {
    gap: 10px;
  }
  .related-grid {
    grid-template-columns: 1fr;
  }
  .footer-col ul {
    gap: 8px;
  }
}

/* roulang page: category2 */
:root {
  --bg-primary: #0A1626;
  --bg-secondary: #0D1B2E;
  --bg-card: rgba(255, 255, 255, 0.05);
  --border-light: rgba(255, 255, 255, 0.12);
  --primary: #00A6FF;
  --primary-dark: #0066FF;
  --accent: #F5B841;
  --text-primary: #EAF2FA;
  --text-secondary: #9FB3C8;
  --text-muted: #687D92;
  --success: #2BD576;
  --radius-lg: 20px;
  --radius-md: 16px;
  --radius-sm: 12px;
  --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.35), inset 0 1px 0 rgba(255, 255, 255, 0.08);
  --glow: 0 0 24px rgba(0, 166, 255, 0.35);
  --glow-hover: 0 0 40px rgba(0, 166, 255, 0.5);
  --space-section: 100px;
  --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, -apple-system, sans-serif;
  --font-mono: "DIN Alternate", "Roboto Mono", monospace;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  font-size: 15px;
  line-height: 1.75;
  color: var(--text-primary);
  background: var(--bg-primary);
  background-image: radial-gradient(ellipse at 80% 0%, rgba(0, 102, 255, 0.08), transparent 60%),
    radial-gradient(ellipse at 20% 100%, rgba(0, 166, 255, 0.05), transparent 50%);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: var(--primary);
  text-decoration: none;
  transition: color 0.25s ease;
}

a:hover {
  color: #33baff;
}

ul, ol {
  list-style: none;
}

button, input, select, textarea {
  font-family: inherit;
  font-size: inherit;
  border: none;
  outline: none;
  background: none;
}

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

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

.section-head {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 56px;
}

.section-eyebrow {
  display: inline-block;
  font-size: 0.8rem;
  letter-spacing: 2px;
  color: var(--primary);
  text-transform: uppercase;
  margin-bottom: 12px;
  font-weight: 600;
}

.section-title {
  font-size: 2rem;
  font-weight: 800;
  line-height: 1.3;
  letter-spacing: -0.5px;
  margin-bottom: 12px;
}

.section-subtitle {
  color: var(--text-secondary);
  font-size: 1rem;
  line-height: 1.7;
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.95rem;
  letter-spacing: 0.2px;
  cursor: pointer;
  transition: all 0.3s ease;
  border: 1px solid transparent;
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff;
  box-shadow: var(--glow);
}

.btn-primary:hover {
  box-shadow: var(--glow-hover);
  transform: translateY(-2px);
  color: #fff;
}

.btn-outline {
  background: rgba(255, 255, 255, 0.04);
  border-color: var(--border-light);
  color: var(--text-primary);
  backdrop-filter: blur(8px);
}

.btn-outline:hover {
  border-color: rgba(255, 255, 255, 0.3);
  background: rgba(255, 255, 255, 0.08);
  transform: translateY(-2px);
  color: #fff;
}

.btn-sm {
  padding: 8px 20px;
  font-size: 0.85rem;
}

.btn-lg {
  padding: 16px 42px;
  font-size: 1.05rem;
  border-radius: 14px;
}

/* ===== Header ===== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(10, 22, 38, 0.8);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
  gap: 16px;
}

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

.brand-icon {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--glow);
}

.brand-icon svg {
  fill: #fff;
}

.brand-text {
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: -0.3px;
  color: var(--text-primary);
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 6px;
}

.nav-link {
  padding: 8px 16px;
  border-radius: 10px;
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: all 0.25s ease;
}

.nav-link:hover {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.06);
}

.nav-link.active {
  color: var(--primary);
  background: rgba(0, 166, 255, 0.1);
  font-weight: 600;
}

.header-cta {
  flex-shrink: 0;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 10px;
  cursor: pointer;
}

.nav-toggle span {
  width: 22px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: all 0.3s ease;
}

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

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

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

/* ===== Hero ===== */
.hero-inner {
  position: relative;
  padding: 180px 0 100px;
  min-height: 520px;
  display: flex;
  align-items: center;
  overflow: hidden;
  background-image: url('/assets/images/backpic/back-2.webp');
  background-size: cover;
  background-position: center;
}

.hero-inner::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(100deg, rgba(10, 22, 38, 0.96) 0%, rgba(10, 22, 38, 0.8) 45%, rgba(10, 22, 38, 0.4) 100%);
  z-index: 1;
}

.hero-inner::after {
  content: "";
  position: absolute;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(0, 166, 255, 0.15), transparent 70%);
  top: -200px;
  right: -100px;
  z-index: 1;
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 720px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(0, 166, 255, 0.12);
  border: 1px solid rgba(0, 166, 255, 0.35);
  color: var(--primary);
  font-size: 0.82rem;
  font-weight: 600;
  padding: 6px 16px;
  border-radius: 50px;
  margin-bottom: 20px;
}

.hero-title {
  font-size: clamp(2.2rem, 5vw, 3.5rem);
  font-weight: 900;
  line-height: 1.2;
  letter-spacing: -1px;
  margin-bottom: 20px;
}

.hero-title .highlight {
  background: linear-gradient(135deg, #ffffff, #7fd4ff);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-sub {
  font-size: 1.1rem;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 32px;
  max-width: 560px;
}

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

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 24px;
}

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

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

.breadcrumb span {
  color: var(--text-muted);
}

/* ===== Timeline ===== */
.timeline-section {
  position: relative;
}

.timeline {
  position: relative;
  max-width: 980px;
  margin: 0 auto;
  padding: 30px 0 10px;
}

.timeline::before {
  content: "";
  position: absolute;
  left: 50%;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, transparent, var(--primary) 10%, rgba(0, 166, 255, 0.6) 85%, transparent);
  transform: translateX(-50%);
}

.timeline-item {
  position: relative;
  width: 50%;
  padding: 0 48px 48px;
}

.timeline-item:nth-child(odd) {
  left: 0;
  text-align: right;
}

.timeline-item:nth-child(even) {
  left: 50%;
  text-align: left;
}

.timeline-item:last-child {
  padding-bottom: 0;
}

.timeline-dot {
  position: absolute;
  top: 8px;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--bg-secondary);
  border: 2px solid var(--primary);
  box-shadow: 0 0 20px rgba(0, 166, 255, 0.4), inset 0 0 8px rgba(0, 166, 255, 0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--primary);
}

.timeline-item:nth-child(odd) .timeline-dot {
  right: -22px;
}

.timeline-item:nth-child(even) .timeline-dot {
  left: -22px;
}

.timeline-dot::after {
  content: "";
  position: absolute;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--primary);
  box-shadow: 0 0 12px var(--primary);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.6; transform: scale(1.4); }
}

.timeline-card {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 24px 28px;
  box-shadow: var(--shadow-card);
  backdrop-filter: blur(10px);
  transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
  display: inline-block;
  max-width: 440px;
}

.timeline-card:hover {
  transform: translateY(-4px);
  border-color: rgba(255, 255, 255, 0.2);
  box-shadow: var(--shadow-card), 0 12px 40px rgba(0, 166, 255, 0.1);
}

.timeline-meta {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 10px;
  flex-wrap: wrap;
  justify-content: flex-start;
}

.timeline-item:nth-child(odd) .timeline-meta {
  flex-direction: row-reverse;
}

.timeline-tag {
  background: linear-gradient(135deg, rgba(0, 166, 255, 0.15), rgba(0, 102, 255, 0.1));
  border: 1px solid rgba(0, 166, 255, 0.3);
  color: var(--primary);
  font-size: 0.75rem;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: 50px;
}

.timeline-duration {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-muted);
}

.timeline-card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--text-primary);
}

.timeline-card p {
  color: var(--text-secondary);
  font-size: 0.92rem;
  line-height: 1.7;
}

/* ===== Guide Cards ===== */
.guide-section {
  background: var(--bg-secondary);
  position: relative;
  overflow: hidden;
}

.guide-section::before {
  content: "";
  position: absolute;
  width: 700px;
  height: 700px;
  background: radial-gradient(circle, rgba(0, 102, 255, 0.06), transparent 70%);
  bottom: -300px;
  left: -200px;
  pointer-events: none;
}

.guide-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
  position: relative;
  z-index: 2;
}

.guide-card {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
}

.guide-card:hover {
  transform: translateY(-6px);
  border-color: rgba(0, 166, 255, 0.3);
  box-shadow: var(--shadow-card), 0 16px 48px rgba(0, 166, 255, 0.12);
}

.guide-card-img {
  position: relative;
  height: 210px;
  overflow: hidden;
}

.guide-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.guide-card:hover .guide-card-img img {
  transform: scale(1.05);
}

.guide-card-img::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(10, 22, 38, 0.6), transparent 60%);
}

.guide-card-num {
  position: absolute;
  top: 16px;
  left: 16px;
  background: rgba(10, 22, 38, 0.75);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: #fff;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 700;
  padding: 4px 14px;
  border-radius: 50px;
  z-index: 2;
}

.guide-card-body {
  padding: 28px;
}

.guide-card-body h3 {
  font-size: 1.18rem;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--text-primary);
}

.guide-card-body p {
  color: var(--text-secondary);
  font-size: 0.92rem;
  line-height: 1.8;
}

.guide-card-body ul {
  margin-top: 12px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.guide-card-body ul li {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  font-size: 0.88rem;
  color: var(--text-secondary);
}

.guide-card-body ul li::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--primary);
  flex-shrink: 0;
  margin-top: 8px;
  box-shadow: 0 0 8px var(--primary);
}

/* ===== Stats Bar ===== */
.stats-section {
  padding: 70px 0;
  background: transparent;
}

.stats-bar {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 48px 40px;
  box-shadow: var(--shadow-card);
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  backdrop-filter: blur(12px);
  position: relative;
  overflow: hidden;
}

.stats-bar::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(to right, transparent, rgba(0, 166, 255, 0.4), transparent);
}

.stat-item {
  text-align: center;
  padding: 8px 0;
}

.stat-num {
  font-family: var(--font-mono);
  font-size: 2.4rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--primary), #7fd4ff);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.2;
  margin-bottom: 6px;
}

.stat-label {
  font-size: 0.88rem;
  color: var(--text-secondary);
}

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

.faq-layout {
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: 56px;
  align-items: start;
}

.faq-intro .section-title {
  text-align: left;
  font-size: 1.6rem;
  margin-bottom: 14px;
}

.faq-intro p {
  color: var(--text-secondary);
  margin-bottom: 24px;
}

.faq-contact-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--primary);
  font-weight: 600;
  font-size: 0.92rem;
}

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

.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: border-color 0.3s ease, background 0.3s ease;
}

.faq-item.active {
  border-color: rgba(0, 166, 255, 0.35);
  background: rgba(255, 255, 255, 0.08);
}

.faq-q {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 20px 24px;
  cursor: pointer;
  transition: background 0.3s ease;
  user-select: none;
}

.faq-q:hover {
  background: rgba(255, 255, 255, 0.03);
}

.faq-q-icon {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  border: 1px solid rgba(0, 166, 255, 0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: var(--primary);
  font-size: 0.8rem;
  font-weight: 700;
}

.faq-q-text {
  flex: 1;
  font-size: 0.98rem;
  font-weight: 600;
  color: var(--text-primary);
  line-height: 1.5;
}

.faq-arrow {
  color: var(--text-muted);
  font-size: 1.2rem;
  transition: transform 0.3s ease;
  flex-shrink: 0;
  font-style: normal;
}

.faq-item.active .faq-arrow {
  transform: rotate(45deg);
  color: var(--primary);
}

.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.4s ease;
  padding: 0 24px;
}

.faq-item.active .faq-a {
  max-height: 300px;
  padding: 0 24px 20px 66px;
}

.faq-a p {
  color: var(--text-secondary);
  font-size: 0.92rem;
  line-height: 1.75;
}

/* ===== CTA ===== */
.cta-section {
  padding: 80px 0 var(--space-section);
}

.cta-box {
  background: linear-gradient(135deg, rgba(0, 102, 255, 0.12), rgba(0, 166, 255, 0.06));
  border: 1px solid rgba(0, 166, 255, 0.25);
  border-radius: 24px;
  padding: 64px 48px;
  text-align: center;
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-card);
}

.cta-box::before {
  content: "";
  position: absolute;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(0, 166, 255, 0.18), transparent 70%);
  top: -250px;
  right: -100px;
  pointer-events: none;
}

.cta-box::after {
  content: "";
  position: absolute;
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(245, 184, 65, 0.08), transparent 70%);
  bottom: -150px;
  left: -50px;
  pointer-events: none;
}

.cta-content {
  position: relative;
  z-index: 2;
  max-width: 640px;
  margin: 0 auto;
}

.cta-content h2 {
  font-size: 2rem;
  font-weight: 800;
  margin-bottom: 14px;
  letter-spacing: -0.5px;
}

.cta-content p {
  color: var(--text-secondary);
  margin-bottom: 32px;
  font-size: 1rem;
}

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

/* ===== Footer ===== */
.site-footer {
  background: #070F1A;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  padding: 64px 0 0;
}

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

.footer-brand p {
  color: var(--text-muted);
  font-size: 0.88rem;
  margin: 16px 0 20px;
  max-width: 320px;
  line-height: 1.75;
}

.footer-social {
  display: flex;
  gap: 12px;
}

.social-link {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  transition: all 0.3s ease;
}

.social-link:hover {
  border-color: var(--primary);
  color: var(--primary);
  box-shadow: 0 0 16px rgba(0, 166, 255, 0.2);
  transform: translateY(-2px);
}

.footer-col h4 {
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 18px;
  color: var(--text-primary);
}

.footer-col ul {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-col ul li a {
  color: var(--text-muted);
  font-size: 0.88rem;
  transition: color 0.3s ease, padding-left 0.3s ease;
}

.footer-col ul li a:hover {
  color: var(--primary);
  padding-left: 4px;
}

.footer-contact p {
  color: var(--text-muted);
  font-size: 0.88rem;
  margin-bottom: 8px;
  line-height: 1.7;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  padding: 24px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.footer-bottom p {
  color: var(--text-muted);
  font-size: 0.82rem;
}

/* ===== Responsive ===== */
@media (max-width: 1023px) {
  :root {
    --space-section: 80px;
  }

  .main-nav {
    gap: 2px;
  }

  .nav-link {
    padding: 8px 12px;
    font-size: 0.85rem;
  }

  .hero-inner {
    padding-top: 150px;
    min-height: 460px;
  }

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

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

@media (max-width: 767px) {
  :root {
    --space-section: 56px;
  }

  .container {
    padding: 0 18px;
  }

  .nav-toggle {
    display: flex;
  }

  .main-nav {
    position: fixed;
    top: 68px;
    left: 0;
    right: 0;
    flex-direction: column;
    background: rgba(10, 22, 38, 0.98);
    backdrop-filter: blur(20px);
    padding: 24px;
    gap: 12px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    transform: translateY(-120%);
    transition: transform 0.4s ease;
    align-items: stretch;
    z-index: 999;
  }

  .main-nav.open {
    transform: translateY(0);
  }

  .nav-link {
    padding: 14px 16px;
    font-size: 1rem;
    text-align: center;
    border-radius: 12px;
  }

  .header-cta .btn {
    width: auto;
    padding: 8px 16px;
    font-size: 0.82rem;
  }

  .hero-inner {
    padding: 130px 0 70px;
    min-height: 440px;
  }

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

  .hero-sub {
    font-size: 0.98rem;
  }

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

  .hero-actions .btn {
    width: 100%;
  }

  .section-title {
    font-size: 1.5rem;
  }

  .timeline::before {
    left: 20px;
  }

  .timeline-item,
  .timeline-item:nth-child(odd),
  .timeline-item:nth-child(even) {
    width: 100%;
    left: 0;
    text-align: left;
    padding: 0 0 36px 56px;
  }

  .timeline-item:nth-child(odd) .timeline-dot,
  .timeline-item:nth-child(even) .timeline-dot {
    left: 0;
    right: auto;
  }

  .timeline-dot {
    width: 40px;
    height: 40px;
  }

  .timeline-card {
    display: block;
    max-width: 100%;
  }

  .timeline-item:nth-child(odd) .timeline-meta {
    flex-direction: row;
  }

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

  .guide-card-img {
    height: 180px;
  }

  .stats-bar {
    grid-template-columns: repeat(2, 1fr);
    padding: 36px 24px;
    gap: 20px;
  }

  .stat-num {
    font-size: 1.8rem;
  }

  .faq-layout {
    grid-template-columns: 1fr;
    gap: 36px;
  }

  .faq-intro .section-title {
    text-align: center;
  }

  .faq-intro p {
    text-align: center;
  }

  .faq-contact-link {
    justify-content: center;
    width: 100%;
  }

  .cta-box {
    padding: 48px 24px;
  }

  .cta-content h2 {
    font-size: 1.5rem;
  }

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

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

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

  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .hero-actions {
    flex-direction: column;
  }

  .hero-actions .btn {
    width: 100%;
  }

  .stats-bar {
    grid-template-columns: 1fr;
  }

  .brand-text {
    font-size: 1.05rem;
  }

  .header-cta {
    display: none;
  }
}

/* roulang page: category3 */
:root {
  --bg-deep: #0A1626;
  --bg-body: #0D1B2E;
  --accent: #00A6FF;
  --accent-deep: #0066FF;
  --gold: #F5B841;
  --text-main: #EAF2FA;
  --text-sub: #9FB3C8;
  --text-mute: #687D92;
  --card-bg: rgba(255,255,255,0.05);
  --card-bg-hover: rgba(255,255,255,0.09);
  --card-border: rgba(255,255,255,0.12);
  --radius-lg: 20px;
  --radius-md: 16px;
  --radius-sm: 12px;
  --shadow-card: 0 8px 32px rgba(0,0,0,0.35);
  --glow: 0 0 24px rgba(0,166,255,0.35);
  --glow-strong: 0 0 40px rgba(0,166,255,0.5);
  --gradient-main: linear-gradient(135deg, #00A6FF 0%, #0066FF 100%);
  --gradient-gold: linear-gradient(135deg, #F7C96B 0%, #F5B841 100%);
  --space-xl: 96px;
  --space-lg: 72px;
  --space-md: 48px;
  --space-sm: 24px;
  --font-num: 'DIN Alternate', 'Roboto Mono', monospace;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
  background: var(--bg-body);
  color: var(--text-main);
  line-height: 1.75;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; border: none; background: none; cursor: pointer; color: inherit; }
input, select, textarea { font-family: inherit; }

.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.section { padding: var(--space-lg) 0; position: relative; }
.section-label {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 0.85rem; letter-spacing: 0.05em;
  color: var(--accent); text-transform: uppercase;
  background: rgba(0,166,255,0.08);
  border: 1px solid rgba(0,166,255,0.25);
  padding: 6px 16px; border-radius: 100px;
  margin-bottom: 20px; font-weight: 600;
}
.section-title {
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 800; line-height: 1.35; letter-spacing: -0.01em;
  margin-bottom: 16px;
}
.section-desc {
  font-size: 1rem; color: var(--text-sub);
  max-width: 680px; margin-bottom: 48px;
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  gap: 8px; padding: 13px 30px; border-radius: var(--radius-sm);
  font-size: 0.98rem; font-weight: 600; line-height: 1.2;
  transition: all 0.3s ease; white-space: nowrap;
}
.btn-primary {
  background: var(--gradient-main); color: #fff;
  box-shadow: var(--glow);
}
.btn-primary:hover {
  transform: translateY(-2px); box-shadow: var(--glow-strong);
}
.btn-primary:active { transform: translateY(0); }
.btn-outline {
  background: rgba(255,255,255,0.06); color: var(--text-main);
  border: 1px solid rgba(255,255,255,0.2);
  backdrop-filter: blur(8px);
}
.btn-outline:hover {
  border-color: rgba(0,166,255,0.6); color: var(--accent);
  background: rgba(0,166,255,0.08); transform: translateY(-2px);
}
.btn-sm { padding: 9px 20px; font-size: 0.9rem; border-radius: 10px; }
.btn-gold {
  background: var(--gradient-gold); color: #1A1205;
  box-shadow: 0 0 24px rgba(245,184,65,0.3); font-weight: 700;
}
.btn-gold:hover { transform: translateY(-2px); box-shadow: 0 0 36px rgba(245,184,65,0.45); }

/* ===== Header ===== */
.site-header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  background: rgba(10,22,38,0.8);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.header-inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 72px; gap: 24px;
}
.brand {
  display: inline-flex; align-items: center; gap: 10px;
  font-weight: 800; font-size: 1.25rem; color: var(--text-main);
  flex-shrink: 0;
}
.brand-icon {
  display: inline-flex; align-items: center; justify-content: center;
  width: 36px; height: 36px; border-radius: 10px;
  background: var(--gradient-main); color: #fff;
  box-shadow: var(--glow); flex-shrink: 0;
}
.brand-text { letter-spacing: -0.01em; }
.main-nav { display: flex; align-items: center; gap: 6px; }
.nav-link {
  padding: 8px 16px; border-radius: 10px;
  font-size: 0.95rem; font-weight: 500; color: var(--text-sub);
  transition: all 0.25s ease;
}
.nav-link:hover { color: var(--text-main); background: rgba(255,255,255,0.06); }
.nav-link.active { color: var(--accent); background: rgba(0,166,255,0.1); font-weight: 600; }
.header-cta { display: flex; align-items: center; gap: 12px; }
.nav-toggle {
  display: none; width: 44px; height: 44px; border-radius: 10px;
  flex-direction: column; gap: 5px; align-items: center; justify-content: center;
  background: rgba(255,255,255,0.06); border: 1px solid var(--card-border);
}
.nav-toggle span {
  width: 18px; height: 2px; background: var(--text-main);
  border-radius: 2px; transition: all 0.3s ease;
}

/* ===== Hero ===== */
.hero-guide {
  position: relative; min-height: 460px;
  display: flex; align-items: center;
  padding: 140px 0 70px;
  background: url('/assets/images/backpic/back-3.webp') center 30% / cover no-repeat;
  isolation: isolate;
}
.hero-guide::before {
  content: ''; position: absolute; inset: 0; z-index: -1;
  background: linear-gradient(100deg, rgba(10,22,38,0.96) 0%, rgba(13,27,46,0.82) 45%, rgba(13,27,46,0.5) 100%);
}
.hero-guide::after {
  content: ''; position: absolute; inset: 0; z-index: -1;
  background: radial-gradient(600px 280px at 85% 20%, rgba(0,166,255,0.18), transparent 70%),
              radial-gradient(500px 260px at 15% 85%, rgba(0,102,255,0.12), transparent 70%);
}
.hero-inner { max-width: 780px; }
.hero-guide h1 {
  font-size: clamp(2rem, 4.5vw, 3.2rem);
  font-weight: 900; line-height: 1.25; letter-spacing: -0.02em;
  margin-bottom: 20px;
}
.hero-guide h1 .grad-text {
  background: linear-gradient(120deg, #fff 30%, #7ED1FF 70%, #00A6FF 100%);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent; color: transparent;
}
.hero-guide h1 .hl {
  background: linear-gradient(120deg, #7ED1FF, #00A6FF);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent; color: transparent;
}
.hero-sub {
  font-size: 1.05rem; color: var(--text-sub); line-height: 1.8;
  max-width: 600px; margin-bottom: 34px;
}
.hero-stats {
  display: flex; flex-wrap: wrap; gap: 32px; margin-top: 44px;
}
.hero-stat { display: flex; flex-direction: column; }
.hero-stat .num {
  font-family: var(--font-num);
  font-size: 1.7rem; font-weight: 700; color: var(--accent);
  line-height: 1.2;
}
.hero-stat .num.gold { color: var(--gold); }
.hero-stat .desc { font-size: 0.85rem; color: var(--text-mute); margin-top: 4px; }

/* ===== Breadcrumb ===== */
.breadcrumb {
  padding: 18px 0 0; font-size: 0.85rem; color: var(--text-mute);
}
.breadcrumb a { color: var(--text-mute); transition: color 0.2s; }
.breadcrumb a:hover { color: var(--accent); }
.breadcrumb .sep { margin: 0 8px; opacity: 0.5; }
.breadcrumb .cur { color: var(--text-sub); }

/* ===== Timeline ===== */
.timeline-section { background: linear-gradient(180deg, var(--bg-body) 0%, #0A1626 100%); }
.timeline {
  position: relative; max-width: 1080px; margin: 0 auto; padding: 24px 0;
}
.timeline::before {
  content: ''; position: absolute; left: 50%; top: 20px; bottom: 20px;
  width: 2px; transform: translateX(-50%);
  background: linear-gradient(180deg, rgba(0,166,255,0.5), rgba(0,102,255,0.12), rgba(245,184,65,0.3));
}
.timeline-item {
  position: relative; display: flex; align-items: flex-start;
  margin-bottom: 48px; width: 50%; padding-right: 48px;
}
.timeline-item:nth-child(even) {
  margin-left: auto; padding-right: 0; padding-left: 48px;
  text-align: left;
}
.timeline-item:last-child { margin-bottom: 0; }
.timeline-dot {
  position: absolute; right: -13px; top: 8px;
  width: 26px; height: 26px; border-radius: 50%;
  background: var(--bg-body); border: 2px solid var(--accent);
  box-shadow: var(--glow); display: flex; align-items: center; justify-content: center;
  z-index: 2;
}
.timeline-item:nth-child(even) .timeline-dot { right: auto; left: -13px; }
.timeline-dot::after {
  content: ''; width: 10px; height: 10px; border-radius: 50%;
  background: var(--accent); box-shadow: 0 0 12px rgba(0,166,255,0.8);
}
.timeline-card {
  background: var(--card-bg); border: 1px solid var(--card-border);
  border-radius: var(--radius-md); padding: 24px 28px;
  box-shadow: var(--shadow-card);
  backdrop-filter: blur(8px);
  transition: all 0.3s ease;
}
.timeline-card:hover {
  transform: translateY(-4px); border-color: rgba(0,166,255,0.35);
  background: var(--card-bg-hover);
}
.timeline-step {
  display: flex; align-items: center; gap: 10px;
  margin-bottom: 10px;
}
.step-num {
  font-family: var(--font-num);
  font-size: 0.8rem; font-weight: 700; color: var(--accent);
  background: rgba(0,166,255,0.1); border: 1px solid rgba(0,166,255,0.3);
  padding: 3px 10px; border-radius: 100px; letter-spacing: 0.05em;
}
.step-time {
  font-size: 0.82rem; color: var(--gold); font-weight: 500;
}
.timeline-card h3 {
  font-size: 1.15rem; font-weight: 700; margin-bottom: 8px;
}
.timeline-card p {
  font-size: 0.92rem; color: var(--text-sub); line-height: 1.75;
}

/* ===== Step Cards ===== */
.steps-section { background: var(--bg-body); }
.steps-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px;
}
.step-card {
  background: var(--card-bg); border: 1px solid var(--card-border);
  border-radius: var(--radius-lg); overflow: hidden;
  box-shadow: var(--shadow-card);
  transition: all 0.3s ease;
  display: flex; flex-direction: column;
}
.step-card:hover {
  transform: translateY(-6px);
  border-color: rgba(0,166,255,0.4);
  box-shadow: 0 12px 40px rgba(0,0,0,0.42), 0 0 24px rgba(0,166,255,0.12);
}
.step-card .card-img { position: relative; aspect-ratio: 16 / 10; overflow: hidden; }
.step-card .card-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
.step-card:hover .card-img img { transform: scale(1.06); }
.step-card .card-img::after {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(180deg, transparent 45%, rgba(10,22,38,0.85) 100%);
}
.step-card .card-body { padding: 24px 26px 28px; position: relative; }
.step-card .card-index {
  position: absolute; top: -18px; right: 26px;
  width: 46px; height: 46px; border-radius: 14px;
  background: var(--gradient-main); display: flex; align-items: center; justify-content: center;
  font-family: var(--font-num); font-size: 1.2rem; font-weight: 700; color: #fff;
  box-shadow: var(--glow);
}
.step-card h3 {
  font-size: 1.12rem; font-weight: 700; margin-bottom: 10px;
  letter-spacing: -0.01em;
}
.step-card p {
  font-size: 0.91rem; color: var(--text-sub); line-height: 1.7;
}
.card-tag {
  display: inline-block; font-size: 0.78rem; color: var(--accent);
  background: rgba(0,166,255,0.08); border: 1px solid rgba(0,166,255,0.25);
  border-radius: 100px; padding: 3px 12px; margin-top: 14px;
  font-weight: 500;
}

/* ===== Flow Steps (wide) ===== */
.flow-section { background: #0A1626; }
.flow-wrap {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px;
}
.flow-item {
  text-align: center; padding: 28px 18px;
  background: var(--card-bg); border: 1px solid var(--card-border);
  border-radius: var(--radius-md); transition: all 0.3s ease;
  position: relative;
}
.flow-item:hover {
  border-color: rgba(245,184,65,0.4); transform: translateY(-4px);
  background: rgba(255,255,255,0.08);
}
.flow-item .flow-icon {
  width: 52px; height: 52px; margin: 0 auto 16px;
  border-radius: 14px; display: flex; align-items: center; justify-content: center;
  background: rgba(0,166,255,0.1); border: 1px solid rgba(0,166,255,0.25);
  color: var(--accent); font-size: 1.4rem;
}
.flow-item h3 { font-size: 1rem; font-weight: 700; margin-bottom: 6px; }
.flow-item p { font-size: 0.85rem; color: var(--text-mute); line-height: 1.6; }
.flow-arrow {
  position: absolute; right: -15px; top: 50%; transform: translateY(-50%);
  width: 30px; height: 30px; border-radius: 50%;
  background: var(--bg-deep); border: 1px solid rgba(0,166,255,0.3);
  display: flex; align-items: center; justify-content: center;
  color: var(--accent); font-size: 0.9rem; z-index: 3;
}

/* ===== FAQ ===== */
.faq-section { background: var(--bg-body); }
.faq-layout {
  display: grid; grid-template-columns: 340px 1fr; gap: 56px;
  align-items: start;
}
.faq-left { position: sticky; top: 100px; }
.faq-left .section-desc { margin-bottom: 24px; }
.faq-list .faq-item {
  background: var(--card-bg); border: 1px solid var(--card-border);
  border-radius: var(--radius-md); margin-bottom: 16px;
  overflow: hidden; transition: border-color 0.3s ease;
}
.faq-list .faq-item:hover { border-color: rgba(0,166,255,0.3); }
.faq-item.open { border-color: rgba(0,166,255,0.4); background: var(--card-bg-hover); }
.faq-question {
  display: flex; align-items: center; gap: 14px;
  width: 100%; text-align: left; padding: 20px 24px;
  font-size: 1rem; font-weight: 600; color: var(--text-main);
  transition: color 0.2s;
}
.faq-question:hover { color: var(--accent); }
.faq-q-icon {
  width: 28px; height: 28px; border-radius: 50%; flex-shrink: 0;
  border: 1px solid rgba(0,166,255,0.4); color: var(--accent);
  display: flex; align-items: center; justify-content: center;
  font-size: 0.85rem; font-weight: 700;
}
.faq-arrow {
  margin-left: auto; flex-shrink: 0; width: 24px; height: 24px;
  display: flex; align-items: center; justify-content: center;
  color: var(--text-mute); transition: transform 0.3s ease;
}
.faq-item.open .faq-arrow { transform: rotate(180deg); color: var(--accent); }
.faq-answer {
  max-height: 0; overflow: hidden;
  transition: max-height 0.35s ease, padding 0.3s ease;
  padding: 0 24px;
}
.faq-item.open .faq-answer {
  max-height: 300px; padding: 0 24px 22px 66px;
}
.faq-answer p {
  font-size: 0.92rem; color: var(--text-sub); line-height: 1.75;
}

/* ===== CTA ===== */
.cta-section { padding: 90px 0; position: relative; overflow: hidden; }
.cta-section::before {
  content: ''; position: absolute; inset: 0;
  background: url('/assets/images/backpic/back-2.webp') center / cover no-repeat;
}
.cta-section::after {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(120deg, rgba(10,22,38,0.95) 30%, rgba(10,22,38,0.7) 100%);
}
.cta-box {
  position: relative; z-index: 2; text-align: center;
  max-width: 720px; margin: 0 auto;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: var(--radius-lg);
  padding: 56px 48px;
  backdrop-filter: blur(12px);
  box-shadow: var(--shadow-card), inset 0 1px 0 rgba(255,255,255,0.08);
}
.cta-box h2 {
  font-size: clamp(1.5rem, 3vw, 2.2rem); font-weight: 800;
  margin-bottom: 14px;
}
.cta-box p { color: var(--text-sub); font-size: 1rem; margin-bottom: 32px; }
.cta-btns { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
.cta-note {
  margin-top: 20px; font-size: 0.82rem; color: var(--text-mute);
}

/* ===== Footer ===== */
.site-footer {
  background: #070F1A; border-top: 1px solid rgba(255,255,255,0.06);
  padding: 64px 0 0; color: var(--text-sub);
}
.footer-grid {
  display: grid; grid-template-columns: 2fr 1fr 1.2fr; gap: 48px;
  padding-bottom: 48px;
}
.footer-brand p {
  font-size: 0.92rem; color: var(--text-mute); line-height: 1.75;
  margin: 16px 0 20px; max-width: 360px;
}
.footer-social { display: flex; gap: 12px; }
.social-link {
  width: 38px; height: 38px; border-radius: 10px;
  display: inline-flex; align-items: center; justify-content: center;
  background: rgba(255,255,255,0.06); border: 1px solid var(--card-border);
  color: var(--text-sub); transition: all 0.3s ease;
}
.social-link:hover {
  color: #fff; background: var(--gradient-main);
  border-color: transparent; transform: translateY(-2px);
  box-shadow: var(--glow);
}
.footer-col h4 {
  font-size: 0.95rem; font-weight: 700; color: var(--text-main);
  margin-bottom: 18px;
}
.footer-col ul { list-style: none; }
.footer-col ul li { margin-bottom: 10px; font-size: 0.9rem; }
.footer-col ul li a { color: var(--text-mute); transition: color 0.2s; }
.footer-col ul li a:hover { color: var(--accent); }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.06);
  padding: 22px 0; display: flex; flex-wrap: wrap;
  justify-content: space-between; align-items: center; gap: 10px;
  font-size: 0.85rem; color: var(--text-mute);
}

/* ===== Nav Drawer (mobile) ===== */
.drawer-backdrop {
  display: none;
}

/* ===== Responsive ===== */
@media (max-width: 1023px) {
  .steps-grid { grid-template-columns: repeat(2, 1fr); }
  .flow-wrap { grid-template-columns: repeat(2, 1fr); gap: 16px; }
  .flow-arrow { display: none; }
  .faq-layout { grid-template-columns: 1fr; gap: 32px; }
  .faq-left { position: static; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 900px) {
  .main-nav { display: none; }
  .header-cta { display: none; }
  .nav-toggle { display: flex; }
  .drawer-backdrop {
    display: block; position: fixed; inset: 0; z-index: 98;
    background: rgba(10,22,38,0.92); backdrop-filter: blur(12px);
    opacity: 0; visibility: hidden; transition: all 0.35s ease;
  }
  .body-nav-open { overflow: hidden; }
  .body-nav-open .drawer-backdrop {
    opacity: 1; visibility: visible;
    display: flex; flex-direction: column; justify-content: center; align-items: center; gap: 8px;
  }
  .body-nav-open .drawer-backdrop a {
    font-size: 1.3rem; font-weight: 600; color: var(--text-main);
    padding: 12px 20px; border-radius: 12px; width: 220px; text-align: center;
    transition: all 0.25s;
  }
  .body-nav-open .drawer-backdrop a:hover { color: var(--accent); background: rgba(255,255,255,0.06); }
  .body-nav-open .drawer-backdrop a.active { color: var(--accent); }
  .body-nav-open .drawer-backdrop .drawer-cta {
    margin-top: 20px; width: 220px;
  }
  .nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
  .nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
}

@media (max-width: 767px) {
  .section { padding: var(--space-md) 0; }
  .hero-guide { min-height: 400px; padding: 120px 0 48px; }
  .hero-guide h1 { font-size: 1.75rem; }
  .hero-sub { font-size: 0.95rem; }
  .hero-stats { gap: 20px; flex-wrap: wrap; }
  .timeline { padding: 12px 0; }
  .timeline::before { left: 15px; transform: none; }
  .timeline-item { width: 100%; padding-left: 50px !important; padding-right: 0 !important; margin-bottom: 32px; }
  .timeline-item:nth-child(even) { margin-left: 0; }
  .timeline-dot { left: 3px !important; right: auto !important; top: 12px; }
  .timeline-card { padding: 18px 20px; }
  .steps-grid { grid-template-columns: 1fr; }
  .flow-wrap { grid-template-columns: 1fr 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .cta-box { padding: 36px 20px; }
  .cta-btns .btn { width: 100%; }
}

@media (max-width: 520px) {
  .container { padding: 0 18px; }
  .flow-wrap { grid-template-columns: 1fr; }
  .faq-answer p { font-size: 0.88rem; }
  .header-inner { height: 64px; }
  .brand-text { font-size: 1.1rem; }
}