/* roulang page: index */
:root {
  --color-bg: #0B0F1A;
  --color-bg-soft: #101826;
  --color-primary: #3B82F6;
  --color-primary-light: #60A5FA;
  --color-accent: #D4A853;
  --color-accent-light: #E8C97A;
  --color-text-1: #E5E9F0;
  --color-text-2: #94A3B8;
  --color-text-3: #64748B;
  --color-line: rgba(255, 255, 255, 0.10);
  --color-card-bg: rgba(255, 255, 255, 0.05);
  --color-danger: #F87171;
  --radius-lg: 16px;
  --radius-md: 10px;
  --radius-sm: 6px;
  --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.2);
  --shadow-card-hover: 0 12px 40px rgba(0, 0, 0, 0.3);
  --glow-blue: 0 0 20px rgba(59, 130, 246, 0.35);
  --glow-blue-lg: 0 0 32px rgba(59, 130, 246, 0.5);
  --glow-gold: 0 0 20px rgba(212, 168, 83, 0.3);
  --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
  --font-num: 'Inter', 'Helvetica Neue', 'PingFang SC', sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  background: var(--color-bg);
  color: var(--color-text-1);
  line-height: 1.6;
  font-size: 15px;
  -webkit-font-smoothing: antialiased;
}

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

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

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

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

@media (max-width: 768px) {
  .container {
    padding: 0 16px;
  }
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 24px;
  border-radius: var(--radius-md);
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.25s ease;
  border: 1px solid transparent;
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, #2563EB, #3B82F6);
  color: #fff;
  box-shadow: var(--glow-blue);
}

.btn-primary:hover {
  filter: brightness(1.12);
  box-shadow: var(--glow-blue-lg);
  transform: translateY(-1px);
}

.btn-primary:active {
  transform: translateY(0);
  filter: brightness(0.95);
}

.btn-ghost {
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.25);
  color: var(--color-text-1);
}

.btn-ghost:hover {
  border-color: var(--color-primary);
  background: rgba(59, 130, 246, 0.10);
  box-shadow: 0 0 12px rgba(59, 130, 246, 0.15);
}

.btn-gold {
  background: linear-gradient(135deg, #C9954A, #D4A853);
  color: #fff;
  box-shadow: var(--glow-gold);
}

.btn-gold:hover {
  filter: brightness(1.1);
  box-shadow: 0 0 28px rgba(212, 168, 83, 0.5);
}

.btn-sm {
  padding: 8px 16px;
  font-size: 14px;
  border-radius: 8px;
}

.btn-lg {
  padding: 14px 32px;
  font-size: 16px;
  border-radius: 12px;
}

.btn-block {
  width: 100%;
}

/* ===== Header ===== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(11, 15, 26, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--color-line);
  transition: background 0.3s ease;
}

.site-header.scrolled {
  background: rgba(11, 15, 26, 0.96);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
  gap: 16px;
}

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

.logo-icon {
  width: 28px;
  height: 28px;
  position: relative;
  border-radius: 50%;
  background: radial-gradient(circle at 35% 35%, var(--color-primary-light), var(--color-primary));
  box-shadow: 0 0 14px rgba(59, 130, 246, 0.6);
}

.logo-icon::after {
  content: '';
  position: absolute;
  top: 5px;
  right: -6px;
  width: 18px;
  height: 10px;
  border: 2px solid var(--color-accent);
  border-bottom: none;
  border-radius: 12px 12px 0 0;
  transform: rotate(35deg);
  opacity: 0.8;
}

.logo-text {
  font-size: 18px;
  font-weight: 700;
  color: var(--color-text-1);
  letter-spacing: 0.02em;
  line-height: 1.2;
}

.logo-sub {
  font-weight: 400;
  color: var(--color-text-3);
  font-size: 15px;
  margin-left: 2px;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 28px;
}

.nav-link {
  position: relative;
  font-size: 15px;
  color: var(--color-text-2);
  padding: 8px 0;
  transition: color 0.25s ease;
}

.nav-link:hover {
  color: var(--color-text-1);
}

.nav-link.active {
  color: var(--color-primary-light);
}

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--color-primary), transparent);
  border-radius: 2px;
  box-shadow: 0 0 8px rgba(59, 130, 246, 0.5);
}

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

.search-box {
  position: relative;
  width: 160px;
}

.search-box svg {
  position: absolute;
  left: 10px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-text-3);
  pointer-events: none;
}

.search-input {
  width: 100%;
  height: 36px;
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--color-line);
  padding: 0 14px 0 36px;
  color: var(--color-text-1);
  font-size: 13px;
  transition: border-color 0.25s, box-shadow 0.25s;
}

.search-input::placeholder {
  color: var(--color-text-3);
}

.search-input:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: transparent;
  cursor: pointer;
  padding: 6px;
  border-radius: 8px;
  transition: background 0.25s;
}

.nav-toggle:hover {
  background: rgba(255, 255, 255, 0.05);
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-text-1);
  border-radius: 2px;
  transition: transform 0.3s, opacity 0.3s;
}

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

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

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

/* ===== Hero ===== */
.hero {
  min-height: 90vh;
  display: flex;
  align-items: center;
  position: relative;
  padding: 120px 0 80px;
  background:
    radial-gradient(ellipse at 50% 20%, rgba(59, 130, 246, 0.28), transparent 60%),
    linear-gradient(rgba(11, 15, 26, 0.82), rgba(11, 15, 26, 0.88)),
    url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image:
    linear-gradient(rgba(59, 130, 246, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(59, 130, 246, 0.05) 1px, transparent 1px);
  background-size: 40px 40px;
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 720px;
}

.hero h1 {
  font-size: 34px;
  line-height: 1.4;
  font-weight: 700;
  color: var(--color-text-1);
  margin-bottom: 16px;
  letter-spacing: 0.01em;
}

.hero h1 .highlight {
  color: var(--color-primary-light);
}

.hero-sub {
  font-size: 17px;
  line-height: 1.7;
  color: var(--color-text-2);
  margin-bottom: 32px;
  max-width: 520px;
}

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

.hero-tags {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.tag {
  display: inline-flex;
  align-items: center;
  padding: 6px 16px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.10);
  font-size: 13px;
  color: var(--color-text-2);
  backdrop-filter: blur(10px);
  transition: border-color 0.25s, color 0.25s;
}

.tag:hover {
  border-color: rgba(59, 130, 246, 0.4);
  color: var(--color-text-1);
}

.tag::before {
  content: '';
  display: inline-block;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--color-primary);
  margin-right: 8px;
  box-shadow: 0 0 6px rgba(59, 130, 246, 0.6);
}

/* ===== Section base ===== */
.section {
  padding: 100px 0;
}

.section-head {
  margin-bottom: 56px;
  text-align: center;
  max-width: 680px;
  margin-left: auto;
  margin-right: auto;
}

.section-title {
  font-size: 28px;
  line-height: 1.35;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--color-text-1);
}

.section-title::after {
  content: '';
  display: block;
  width: 48px;
  height: 2px;
  background: linear-gradient(90deg, var(--color-primary), transparent);
  margin-top: 14px;
  margin-left: auto;
  margin-right: auto;
  border-radius: 2px;
}

.section-desc {
  font-size: 15px;
  color: var(--color-text-2);
  line-height: 1.7;
  margin-top: 16px;
}

@media (max-width: 768px) {
  .section {
    padding: 64px 0;
  }
  .section-title {
    font-size: 22px;
  }
}

/* ===== Steps / 优惠阶梯 ===== */
.steps-section {
  background: linear-gradient(180deg, var(--color-bg) 0%, var(--color-bg-soft) 100%);
  border-top: 1px solid rgba(59, 130, 246, 0.08);
  border-bottom: 1px solid rgba(59, 130, 246, 0.08);
}

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

.step-card {
  background: var(--color-card-bg);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  box-shadow: var(--shadow-card), 0 0 0 1px rgba(59, 130, 246, 0.12);
  transition: transform 0.25s, box-shadow 0.25s, border-color 0.25s;
  position: relative;
  display: flex;
  flex-direction: column;
}

.step-card:hover {
  transform: translateY(-4px);
  border-color: rgba(59, 130, 246, 0.4);
  box-shadow: var(--shadow-card-hover), 0 0 0 1px rgba(59, 130, 246, 0.2);
}

.step-card.recommended {
  border-color: rgba(212, 168, 83, 0.5);
  background: rgba(212, 168, 83, 0.04);
  box-shadow: var(--shadow-card), 0 0 0 1px rgba(212, 168, 83, 0.18);
}

.step-card.recommended:hover {
  border-color: rgba(212, 168, 83, 0.8);
  box-shadow: var(--shadow-card-hover), 0 0 0 1px rgba(212, 168, 83, 0.25);
}

.recommend-badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: linear-gradient(135deg, #C9954A, #D4A853);
  color: #10131A;
  font-size: 12px;
  font-weight: 700;
  padding: 4px 16px;
  border-radius: 999px;
  letter-spacing: 0.04em;
  box-shadow: 0 4px 16px rgba(212, 168, 83, 0.35);
  white-space: nowrap;
}

.recommend-badge::after {
  content: '';
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 0;
  border: 5px solid transparent;
  border-top-color: #D4A853;
}

.step-icon {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: rgba(59, 130, 246, 0.12);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  border: 1px solid rgba(59, 130, 246, 0.2);
  box-shadow: 0 0 16px rgba(59, 130, 246, 0.1);
}

.recommended .step-icon {
  background: rgba(212, 168, 83, 0.12);
  border-color: rgba(212, 168, 83, 0.3);
  box-shadow: 0 0 16px rgba(212, 168, 83, 0.1);
}

.step-name {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 16px;
  color: var(--color-text-1);
}

.step-list {
  list-style: none;
  margin-bottom: 24px;
  flex-grow: 1;
}

.step-list li {
  padding: 7px 0;
  font-size: 14px;
  color: var(--color-text-2);
  display: flex;
  align-items: flex-start;
  gap: 8px;
  line-height: 1.5;
}

.step-list li::before {
  content: '';
  flex-shrink: 0;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
  margin-top: 7px;
  box-shadow: 0 0 6px rgba(59, 130, 246, 0.4);
}

.recommended .step-list li::before {
  background: linear-gradient(135deg, #C9954A, #D4A853);
  box-shadow: 0 0 6px rgba(212, 168, 83, 0.4);
}

.step-cta {
  margin-top: auto;
}

/* ===== Compare / 套餐对比 ===== */
.compare-section {
  background: var(--color-bg);
}

.compare-table-wrap {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.compare-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  min-width: 720px;
  background: rgba(255, 255, 255, 0.02);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-line);
  box-shadow: var(--shadow-card);
}

.compare-table th {
  padding: 20px 16px;
  font-size: 16px;
  font-weight: 700;
  color: var(--color-text-1);
  background: rgba(59, 130, 246, 0.08);
  text-align: center;
  border-bottom: 1px solid var(--color-line);
}

.compare-table th:first-child {
  text-align: left;
  width: 20%;
  background: rgba(255, 255, 255, 0.02);
}

.compare-table td {
  padding: 16px;
  font-size: 14px;
  color: var(--color-text-2);
  text-align: center;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  line-height: 1.6;
}

.compare-table tr:last-child td {
  border-bottom: none;
}

.compare-table td:first-child {
  text-align: left;
  color: var(--color-text-1);
  font-weight: 600;
}

.compare-table .recommended-col {
  background: rgba(59, 130, 246, 0.06);
  border-left: 1px solid rgba(59, 130, 246, 0.25);
  border-right: 1px solid rgba(59, 130, 246, 0.25);
  box-shadow: inset 0 0 20px rgba(59, 130, 246, 0.06);
  position: relative;
}

.compare-table th.recommended-col {
  background: rgba(59, 130, 246, 0.12);
}

.table-badge {
  display: inline-block;
  background: linear-gradient(135deg, #2563EB, #3B82F6);
  color: #fff;
  font-size: 12px;
  font-weight: 700;
  padding: 2px 12px;
  border-radius: 999px;
  margin-left: 6px;
  box-shadow: 0 0 10px rgba(59, 130, 246, 0.4);
}

.price-tag {
  font-family: var(--font-num);
  font-size: 28px;
  font-weight: 700;
  color: var(--color-accent);
  font-variant-numeric: tabular-nums;
}

.price-unit {
  font-size: 13px;
  color: var(--color-text-3);
  margin-left: 2px;
  font-weight: 400;
}

.compare-cta {
  text-align: center;
  margin-top: 40px;
}

/* ===== Limited / 限时入口 ===== */
.limited-section {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(ellipse at 80% 10%, rgba(212, 168, 83, 0.12), transparent 50%),
    linear-gradient(135deg, rgba(59, 130, 246, 0.06), transparent),
    var(--color-bg-soft);
  border-top: 1px solid rgba(212, 168, 83, 0.12);
  border-bottom: 1px solid rgba(212, 168, 83, 0.12);
}

.limited-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(212, 168, 83, 0.4), transparent);
}

.limited-inner {
  text-align: center;
  max-width: 720px;
  margin: 0 auto;
  position: relative;
}

.limited-title {
  font-size: 28px;
  font-weight: 700;
  margin-bottom: 12px;
}

.limited-desc {
  font-size: 15px;
  color: var(--color-text-2);
  margin-bottom: 40px;
}

.countdown {
  display: flex;
  justify-content: center;
  gap: 20px;
  margin-bottom: 40px;
}

.countdown-item {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  padding: 18px 12px 14px;
  min-width: 80px;
  text-align: center;
  backdrop-filter: blur(10px);
}

.countdown-num {
  font-family: var(--font-num);
  font-size: 36px;
  font-weight: 700;
  color: var(--color-accent);
  font-variant-numeric: tabular-nums;
  line-height: 1.1;
  text-shadow: 0 0 20px rgba(212, 168, 83, 0.3);
}

.countdown-label {
  display: block;
  margin-top: 8px;
  font-size: 12px;
  color: var(--color-text-3);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

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

/* ===== News / 资讯板块 ===== */
.news-section {
  background: linear-gradient(180deg, var(--color-bg) 0%, var(--color-bg-soft) 100%);
}

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

.news-card {
  background: var(--color-card-bg);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-card), 0 0 0 1px rgba(59, 130, 246, 0.10);
  transition: transform 0.25s, box-shadow 0.25s, border-color 0.25s;
}

.news-card:hover {
  transform: translateY(-4px);
  border-color: rgba(59, 130, 246, 0.35);
  box-shadow: var(--shadow-card-hover), 0 0 0 1px rgba(59, 130, 246, 0.18);
}

.news-card-link {
  display: flex;
  flex-direction: column;
  height: 100%;
}

.news-card-cover {
  height: 160px;
  overflow: hidden;
  background: var(--color-bg-soft);
}

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

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

.news-card-body {
  padding: 20px 20px 16px;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.news-cat {
  display: inline-block;
  align-self: flex-start;
  font-size: 12px;
  color: var(--color-primary-light);
  background: rgba(59, 130, 246, 0.12);
  padding: 3px 10px;
  border-radius: var(--radius-sm);
  margin-bottom: 12px;
  letter-spacing: 0.02em;
}

.news-card-body h3 {
  font-size: 15px;
  line-height: 1.5;
  font-weight: 600;
  color: var(--color-text-1);
  margin-bottom: 10px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  min-height: 45px;
}

.news-card-body p {
  font-size: 13px;
  line-height: 1.6;
  color: var(--color-text-3);
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 14px;
  flex-grow: 1;
}

.news-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  padding-top: 12px;
  font-size: 12px;
  color: var(--color-text-3);
}

.read-more {
  color: var(--color-primary-light);
  font-weight: 600;
  transition: color 0.2s;
}

.read-more:hover {
  color: var(--color-primary);
}

.news-empty {
  grid-column: 1 / -1;
  text-align: center;
  padding: 60px 20px;
  color: var(--color-text-3);
  font-size: 15px;
  background: rgba(255, 255, 255, 0.02);
  border: 1px dashed var(--color-line);
  border-radius: var(--radius-lg);
}

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

.faq-list {
  max-width: 800px;
  margin: 0 auto;
  background: var(--color-card-bg);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card), 0 0 0 1px rgba(59, 130, 246, 0.08);
  overflow: hidden;
}

.faq-item {
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

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

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 18px 24px;
  cursor: pointer;
  font-size: 15px;
  font-weight: 600;
  color: var(--color-text-1);
  transition: background 0.2s, color 0.2s;
  user-select: none;
}

.faq-question:hover {
  background: rgba(59, 130, 246, 0.05);
  color: var(--color-primary-light);
}

.faq-icon {
  flex-shrink: 0;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--color-line);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  font-weight: 400;
  color: var(--color-text-2);
  transition: transform 0.3s, background 0.3s, color 0.3s;
}

.faq-item.open .faq-icon {
  transform: rotate(45deg);
  background: rgba(59, 130, 246, 0.15);
  border-color: rgba(59, 130, 246, 0.4);
  color: var(--color-primary-light);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}

.faq-answer-inner {
  padding: 0 24px 20px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--color-text-2);
}

/* ===== Contact / 咨询表单 ===== */
.contact-section {
  background:
    radial-gradient(ellipse at 15% 90%, rgba(59, 130, 246, 0.1), transparent 50%),
    linear-gradient(180deg, var(--color-bg-soft) 0%, var(--color-bg) 100%);
  border-top: 1px solid rgba(59, 130, 246, 0.08);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 48px;
  align-items: start;
}

.contact-form {
  background: var(--color-card-bg);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  padding: 40px;
  box-shadow: var(--shadow-card), 0 0 0 1px rgba(59, 130, 246, 0.10);
}

.form-group {
  margin-bottom: 24px;
}

.form-label {
  display: block;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text-1);
  margin-bottom: 8px;
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-md);
  height: 44px;
  padding: 0 14px;
  color: var(--color-text-1);
  font-size: 14px;
  transition: border-color 0.25s, box-shadow 0.25s;
  -webkit-appearance: none;
  appearance: none;
}

.form-select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%2394A3B8' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  padding-right: 40px;
}

.form-textarea {
  height: auto;
  min-height: 100px;
  padding: 12px 14px;
  resize: vertical;
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--color-text-3);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
  background: rgba(59, 130, 246, 0.03);
}

.form-note {
  font-size: 12px;
  color: var(--color-text-3);
  margin-top: 16px;
  text-align: center;
}

.contact-info {
  background: var(--color-card-bg);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  padding: 32px;
  box-shadow: var(--shadow-card);
}

.contact-info h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 8px;
}

.contact-info p {
  font-size: 14px;
  color: var(--color-text-2);
  margin-bottom: 24px;
  line-height: 1.7;
}

.info-list {
  list-style: none;
}

.info-list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 12px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  font-size: 14px;
  color: var(--color-text-2);
}

.info-list li:last-child {
  border-bottom: none;
}

.info-icon {
  flex-shrink: 0;
  width: 18px;
  height: 18px;
  margin-top: 2px;
  color: var(--color-primary-light);
}

.info-list strong {
  display: block;
  color: var(--color-text-1);
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 2px;
}

/* ===== Footer ===== */
.site-footer {
  background: #080C14;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  padding: 64px 0 32px;
}

.footer-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
}

.footer-desc {
  font-size: 14px;
  color: var(--color-text-3);
  max-width: 400px;
  margin-bottom: 24px;
  line-height: 1.7;
}

.footer-contact {
  display: flex;
  gap: 24px;
  margin-bottom: 32px;
  font-size: 13px;
  color: var(--color-text-3);
  flex-wrap: wrap;
  justify-content: center;
}

.footer-contact span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.footer-contact svg {
  width: 14px;
  height: 14px;
  color: var(--color-primary);
}

.footer-copy {
  font-size: 13px;
  color: var(--color-text-3);
  border-top: 1px solid rgba(255, 255, 255, 0.04);
  padding-top: 24px;
  width: 100%;
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .main-nav {
    display: none;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: rgba(11, 15, 26, 0.97);
    backdrop-filter: blur(20px);
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    padding: 16px 24px;
    border-bottom: 1px solid var(--color-line);
  }

  .main-nav.open {
    display: flex;
  }

  .nav-link {
    width: 100%;
    padding: 14px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.04);
  }

  .nav-link:last-child {
    border-bottom: none;
  }

  .nav-link.active::after {
    display: none;
  }

  .nav-toggle {
    display: flex;
  }

  .nav-actions .search-box {
    display: none;
  }

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

  .step-card.recommended {
    order: -1;
  }

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

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

@media (max-width: 768px) {
  .hero {
    min-height: 100vh;
    padding: 100px 0 60px;
  }

  .hero h1 {
    font-size: 26px;
    line-height: 1.4;
  }

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

  .hero-actions .btn {
    padding: 10px 20px;
  }

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

  .step-card.recommended {
    order: 0;
  }

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

  .compare-table {
    min-width: 640px;
  }

  .limited-title {
    font-size: 22px;
  }

  .countdown {
    gap: 12px;
  }

  .countdown-item {
    min-width: 64px;
    padding: 14px 8px 10px;
  }

  .countdown-num {
    font-size: 28px;
  }

  .news-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .news-card-cover {
    height: 180px;
  }

  .contact-form {
    padding: 28px 20px;
  }

  .faq-question {
    padding: 16px 16px;
    font-size: 14px;
  }

  .faq-answer-inner {
    padding: 0 16px 16px;
  }
}

@media (max-width: 520px) {
  .container {
    padding: 0 14px;
  }

  .logo-text {
    font-size: 16px;
  }

  .logo-sub {
    display: none;
  }

  .nav-actions .btn-ghost {
    display: none;
  }

  .hero h1 {
    font-size: 23px;
  }

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

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

  .hero-tags {
    gap: 8px;
  }

  .tag {
    font-size: 12px;
    padding: 5px 12px;
  }

  .section-title {
    font-size: 20px;
  }

  .section-desc {
    font-size: 14px;
  }

  .compare-table thead th {
    font-size: 14px;
    padding: 14px 12px;
  }

  .compare-table td {
    font-size: 13px;
    padding: 12px 10px;
  }

  .price-tag {
    font-size: 24px;
  }

  .countdown-item {
    min-width: 56px;
    padding: 12px 6px 8px;
  }

  .countdown-num {
    font-size: 24px;
  }

  .countdown-label {
    font-size: 11px;
  }

  .footer-contact {
    flex-direction: column;
    gap: 8px;
  }
}

/* ===== Focus accessibility ===== */
a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* ===== Reduced motion ===== */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
    scroll-behavior: auto !important;
  }
}

/* roulang page: category1 */
:root {
  --color-bg: #0B0F1A;
  --color-bg-soft: #101826;
  --color-primary: #3B82F6;
  --color-primary-light: #60A5FA;
  --color-accent: #D4A853;
  --color-accent-light: #E8C97A;
  --color-text-1: #E5E9F0;
  --color-text-2: #94A3B8;
  --color-text-3: #64748B;
  --color-line: rgba(255,255,255,0.10);
  --color-card-bg: rgba(255,255,255,0.05);
  --color-danger: #F87171;
  --radius-lg: 16px;
  --radius-md: 10px;
  --radius-sm: 6px;
  --shadow-card: 0 8px 32px rgba(0,0,0,0.2);
  --shadow-hover: 0 12px 40px rgba(0,0,0,0.3);
  --glow-blue: 0 0 0 1px rgba(59,130,246,0.15);
  --glow-blue-strong: 0 0 20px rgba(59,130,246,0.35);
  --font-cn: "PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  --font-en: "Inter","Helvetica Neue",sans-serif;
  --container-width: 1200px;
  --space-section-desktop: 120px;
  --space-section-mobile: 64px;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-cn);
  font-size: 15px;
  line-height: 24px;
  font-weight: 400;
  color: var(--color-text-1);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
input, textarea { font-family: inherit; font-size: 14px; color: var(--color-text-1); }
ul, ol { list-style: none; }

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

.section-head {
  text-align: center;
  margin-bottom: 48px;
}
.section-head h2 {
  font-size: 24px;
  font-weight: 700;
  line-height: 34px;
  color: var(--color-text-1);
}
.section-head h2 .gold {
  color: var(--color-accent-light);
}
.section-head p {
  margin-top: 12px;
  font-size: 14px;
  line-height: 24px;
  color: var(--color-text-2);
  max-width: 640px;
  margin-left: auto;
  margin-right: auto;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: var(--radius-md);
  font-size: 14px;
  font-weight: 600;
  line-height: 1;
  transition: all 0.25s ease;
  border: 1px solid transparent;
  white-space: nowrap;
}
.btn-primary {
  background: linear-gradient(135deg, #2563EB, #3B82F6);
  color: #fff;
  box-shadow: var(--glow-blue-strong);
  border: 1px solid rgba(59,130,246,0.3);
}
.btn-primary:hover {
  filter: brightness(1.1);
  box-shadow: 0 0 32px rgba(59,130,246,0.5);
  transform: translateY(-2px);
}
.btn-primary:active {
  transform: translateY(0);
  filter: brightness(0.95);
}
.btn-ghost {
  background: transparent;
  border: 1px solid rgba(255,255,255,0.25);
  color: var(--color-text-1);
}
.btn-ghost:hover {
  border-color: var(--color-primary);
  background: rgba(59,130,246,0.1);
  transform: translateY(-2px);
}
.btn-ghost:active {
  transform: translateY(0);
}
.btn-accent {
  background: linear-gradient(135deg, #C9954A, #D4A853);
  color: #0B0F1A;
  box-shadow: 0 0 20px rgba(212,168,83,0.3);
}
.btn-accent:hover {
  filter: brightness(1.08);
  box-shadow: 0 0 32px rgba(212,168,83,0.5);
  transform: translateY(-2px);
}
.btn-sm {
  padding: 8px 18px;
  font-size: 13px;
  border-radius: 8px;
}

/* Header */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: 64px;
  background: rgba(11,15,26,0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(255,255,255,0.06);
  transition: background 0.3s ease;
}
.site-header.scrolled {
  background: rgba(11,15,26,0.95);
}
.header-inner {
  display: flex;
  align-items: center;
  height: 64px;
  gap: 32px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.logo-icon {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: radial-gradient(circle, #60A5FA 0%, #3B82F6 55%, transparent 70%);
  box-shadow: 0 0 16px rgba(59,130,246,0.6);
  position: relative;
}
.logo-icon::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 50%;
  transform: translateX(-50%);
  width: 12px;
  height: 6px;
  border-radius: 50%;
  background: rgba(59,130,246,0.4);
  filter: blur(2px);
}
.logo-text {
  font-family: var(--font-en);
  font-size: 18px;
  font-weight: 700;
  color: var(--color-text-1);
  letter-spacing: 0.5px;
}
.logo-text .logo-sub {
  font-weight: 400;
  color: var(--color-text-3);
}
.main-nav {
  display: flex;
  align-items: center;
  gap: 6px;
  flex: 1;
  justify-content: center;
}
.nav-link {
  position: relative;
  padding: 8px 16px;
  font-size: 14px;
  font-weight: 500;
  color: var(--color-text-2);
  border-radius: 8px;
  transition: color 0.2s ease, background-color 0.2s ease;
}
.nav-link:hover {
  color: var(--color-text-1);
  background: rgba(255,255,255,0.04);
}
.nav-link.active {
  color: var(--color-primary-light);
  background: rgba(59,130,246,0.08);
}
.nav-link.active::after {
  content: '';
  position: absolute;
  left: 16px;
  right: 16px;
  bottom: 2px;
  height: 2px;
  border-radius: 2px;
  background: var(--color-primary);
  box-shadow: 0 0 8px rgba(59,130,246,0.8);
}
.nav-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.search-box {
  display: flex;
  align-items: center;
  gap: 8px;
  width: 160px;
  height: 36px;
  padding: 0 12px;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 20px;
  color: var(--color-text-3);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}
.search-box:focus-within {
  border-color: rgba(59,130,246,0.5);
  box-shadow: 0 0 0 3px rgba(59,130,246,0.15);
}
.search-input {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  font-size: 13px;
  color: var(--color-text-1);
}
.search-input::placeholder {
  color: var(--color-text-3);
}
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 4px;
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  border: 1px solid rgba(255,255,255,0.1);
  background: rgba(255,255,255,0.04);
}
.nav-toggle span {
  width: 18px;
  height: 2px;
  background: var(--color-text-1);
  border-radius: 2px;
  transition: all 0.3s ease;
}

/* Footer */
.site-footer {
  background: #080C14;
  border-top: 1px solid rgba(255,255,255,0.06);
  padding: 48px 0 32px;
}
.footer-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 16px;
}
.footer-logo {
  display: inline-flex;
}
.footer-desc {
  font-size: 13px;
  color: var(--color-text-3);
  max-width: 360px;
}
.footer-contact {
  display: flex;
  align-items: center;
  gap: 24px;
  font-size: 13px;
  color: var(--color-text-2);
  flex-wrap: wrap;
  justify-content: center;
}
.footer-contact span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.footer-copy {
  font-size: 12px;
  color: var(--color-text-3);
  margin-top: 12px;
  padding-top: 16px;
  border-top: 1px solid rgba(255,255,255,0.05);
  width: 100%;
}

/* Hero */
.cat-hero {
  position: relative;
  min-height: 90vh;
  display: flex;
  align-items: center;
  padding-top: 64px;
  overflow: hidden;
  background:
    radial-gradient(ellipse at 40% 30%, rgba(59,130,246,0.22) 0%, rgba(11,15,26,0.8) 55%, var(--color-bg) 100%),
    linear-gradient(180deg, #0B0F1A 0%, #0D1420 100%),
    url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
}
.cat-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 42px 42px;
  pointer-events: none;
}
.cat-hero .container {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  align-items: center;
  gap: 60px;
}
.cat-hero-tag {
  display: inline-block;
  padding: 6px 16px;
  border-radius: 999px;
  background: rgba(59,130,246,0.12);
  border: 1px solid rgba(59,130,246,0.3);
  color: var(--color-primary-light);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 1px;
  margin-bottom: 20px;
}
.cat-hero h1 {
  font-size: 34px;
  font-weight: 700;
  line-height: 48px;
  color: #fff;
  margin-bottom: 16px;
  letter-spacing: 0.5px;
}
.cat-hero h1 .highlight {
  color: var(--color-accent-light);
  font-weight: 700;
}
.cat-hero p.subtitle {
  font-size: 16px;
  line-height: 28px;
  color: var(--color-text-2);
  max-width: 460px;
  margin-bottom: 28px;
}
.cat-hero-btns {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}
.cat-hero-visual {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-card), var(--glow-blue);
  border: 1px solid rgba(255,255,255,0.12);
  background: rgba(255,255,255,0.04);
}
.cat-hero-visual img {
  width: 100%;
  height: 480px;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.cat-hero-visual:hover img {
  transform: scale(1.03);
}
.cat-hero-visual::after {
  content: '';
  position: absolute;
  left: 12px;
  right: 12px;
  bottom: 12px;
  height: 60px;
  background: linear-gradient(0deg, rgba(11,15,26,0.7), transparent);
  border-radius: 0 0 var(--radius-lg) var(--radius-lg);
  pointer-events: none;
}

/* Intro */
.cat-intro {
  padding: 80px 0 40px;
  background: var(--color-bg);
}
.cat-intro .content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}
.cat-intro .intro-text h2 {
  font-size: 24px;
  font-weight: 700;
  line-height: 34px;
  margin-bottom: 20px;
}
.cat-intro .intro-text p {
  font-size: 15px;
  line-height: 27px;
  color: var(--color-text-2);
  margin-bottom: 16px;
}
.cat-intro .intro-text p strong {
  color: var(--color-text-1);
}
.cat-intro .intro-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 28px;
}
.intro-stat {
  padding: 16px;
  background: var(--color-card-bg);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  text-align: center;
  box-shadow: var(--glow-blue);
}
.intro-stat .num {
  font-family: var(--font-en);
  font-size: 28px;
  font-weight: 700;
  color: var(--color-accent-light);
  line-height: 36px;
}
.intro-stat .label {
  font-size: 12px;
  color: var(--color-text-3);
  margin-top: 4px;
}
.cat-intro .intro-image {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-card), var(--glow-blue);
  border: 1px solid var(--color-line);
}
.cat-intro .intro-image img {
  height: 360px;
  object-fit: cover;
  width: 100%;
}

/* Directions */
.cat-directions {
  padding: 80px 0;
  background: var(--color-bg-soft);
  position: relative;
}
.cat-directions::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 80%;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(59,130,246,0.3), transparent);
}
.direction-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.direction-card {
  background: var(--color-card-bg);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-card), var(--glow-blue);
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}
.direction-card:hover {
  transform: translateY(-4px);
  border-color: rgba(59,130,246,0.4);
  box-shadow: var(--shadow-hover), 0 0 0 1px rgba(59,130,246,0.3);
}
.direction-card .card-image {
  position: relative;
  height: 180px;
  overflow: hidden;
}
.direction-card .card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.direction-card:hover .card-image img {
  transform: scale(1.05);
}
.direction-card .card-image::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(0deg, rgba(11,15,26,0.6), transparent);
}
.direction-card .card-image .card-tag {
  position: absolute;
  left: 16px;
  bottom: 14px;
  z-index: 2;
  padding: 4px 12px;
  border-radius: 999px;
  background: rgba(11,15,26,0.65);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255,255,255,0.15);
  font-size: 12px;
  font-weight: 600;
  color: var(--color-accent-light);
}
.direction-card .card-body {
  padding: 24px;
}
.direction-card .card-body h3 {
  font-size: 18px;
  font-weight: 700;
  line-height: 26px;
  margin-bottom: 10px;
  color: var(--color-text-1);
}
.direction-card .card-body p {
  font-size: 13px;
  line-height: 22px;
  color: var(--color-text-2);
}
.direction-card .card-body .card-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 16px;
  font-size: 13px;
  font-weight: 600;
  color: var(--color-primary-light);
  transition: gap 0.2s ease;
}
.direction-card .card-body .card-link:hover {
  gap: 10px;
}

/* Scenarios */
.cat-scenarios {
  padding: 80px 0;
  background: var(--color-bg);
}
.scenario-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
  max-width: 860px;
  margin: 0 auto;
}
.scenario-item {
  display: flex;
  gap: 20px;
  padding: 24px;
  background: var(--color-card-bg);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  box-shadow: var(--glow-blue);
  transition: border-color 0.25s ease, transform 0.25s ease;
}
.scenario-item:hover {
  border-color: rgba(59,130,246,0.35);
  transform: translateX(6px);
}
.scenario-icon {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(59,130,246,0.12);
  border: 1px solid rgba(59,130,246,0.25);
  color: var(--color-primary-light);
}
.scenario-content h4 {
  font-size: 16px;
  font-weight: 600;
  line-height: 24px;
  margin-bottom: 4px;
  color: var(--color-text-1);
}
.scenario-content p {
  font-size: 13px;
  line-height: 22px;
  color: var(--color-text-2);
}

/* Process */
.cat-process {
  padding: 80px 0;
  background: var(--color-bg-soft);
  position: relative;
}
.cat-process::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 80%;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(212,168,83,0.4), transparent);
}
.process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.process-step {
  position: relative;
  text-align: center;
  padding: 28px 20px;
  background: var(--color-card-bg);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  box-shadow: var(--glow-blue);
  transition: transform 0.25s ease, border-color 0.25s ease;
}
.process-step:hover {
  transform: translateY(-4px);
  border-color: rgba(212,168,83,0.4);
}
.process-step .step-num {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: linear-gradient(135deg, #C9954A, #D4A853);
  color: #0B0F1A;
  font-size: 13px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 16px rgba(212,168,83,0.4);
}
.process-step .step-icon {
  width: 44px;
  height: 44px;
  margin: 0 auto 14px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(59,130,246,0.1);
  border: 1px solid rgba(59,130,246,0.2);
  color: var(--color-primary-light);
}
.process-step h4 {
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--color-text-1);
}
.process-step p {
  font-size: 12px;
  line-height: 20px;
  color: var(--color-text-3);
}

/* FAQ */
.cat-faq {
  padding: 80px 0;
  background: var(--color-bg);
}
.faq-list {
  max-width: 760px;
  margin: 0 auto;
  background: var(--color-card-bg);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-card), var(--glow-blue);
}
.faq-item {
  border-bottom: 1px solid rgba(255,255,255,0.06);
}
.faq-item:last-child {
  border-bottom: none;
}
.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 24px;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text-1);
  background: transparent;
  text-align: left;
  transition: background-color 0.2s ease;
}
.faq-question:hover {
  background: rgba(255,255,255,0.03);
}
.faq-question .faq-icon {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--color-line);
  color: var(--color-text-3);
  transition: transform 0.3s ease, color 0.3s ease, border-color 0.3s ease;
  font-size: 14px;
  font-weight: 300;
}
.faq-item.open .faq-question .faq-icon {
  transform: rotate(45deg);
  color: var(--color-primary-light);
  border-color: rgba(59,130,246,0.4);
}
.faq-answer {
  display: none;
  padding: 0 24px 18px;
  font-size: 13px;
  line-height: 22px;
  color: var(--color-text-2);
}
.faq-item.open .faq-answer {
  display: block;
  animation: faqFadeIn 0.3s ease;
}
@keyframes faqFadeIn {
  from { opacity: 0; transform: translateY(-6px); }
  to { opacity: 1; transform: translateY(0); }
}

/* CTA */
.cat-cta {
  padding: 80px 0;
  background:
    radial-gradient(ellipse at 50% 60%, rgba(59,130,246,0.15) 0%, transparent 60%),
    var(--color-bg-soft);
  position: relative;
  border-top: 1px solid rgba(255,255,255,0.06);
}
.cat-cta::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 60%;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(59,130,246,0.4), transparent);
}
.cta-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: start;
}
.cta-info h2 {
  font-size: 24px;
  font-weight: 700;
  line-height: 34px;
  margin-bottom: 16px;
}
.cta-info p {
  font-size: 14px;
  line-height: 26px;
  color: var(--color-text-2);
  margin-bottom: 24px;
}
.cta-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.cta-list li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: var(--color-text-1);
}
.cta-list li svg {
  flex-shrink: 0;
  color: var(--color-accent-light);
}
.cta-form-wrap {
  background: var(--color-card-bg);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  padding: 32px;
  box-shadow: var(--shadow-card), var(--glow-blue);
}
.cta-form-wrap h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 20px;
  color: var(--color-text-1);
}
.form-group {
  margin-bottom: 16px;
}
.form-group label {
  display: block;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text-1);
  margin-bottom: 6px;
}
.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  height: 44px;
  padding: 0 14px;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: var(--radius-md);
  outline: none;
  font-size: 14px;
  color: var(--color-text-1);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
  appearance: none;
}
.form-group select option {
  background: var(--color-bg-soft);
  color: var(--color-text-1);
}
.form-group textarea {
  height: 100px;
  padding: 12px 14px;
  resize: vertical;
}
.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(59,130,246,0.15);
}
.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--color-text-3);
}
.form-submit {
  width: 100%;
  margin-top: 8px;
}
.form-note {
  margin-top: 12px;
  text-align: center;
  font-size: 12px;
  color: var(--color-text-3);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
}

/* Breadcrumb */
.breadcrumb {
  padding: 80px 0 0;
  background: var(--color-bg);
  font-size: 13px;
  color: var(--color-text-3);
}
.breadcrumb .container {
  display: flex;
  align-items: center;
  gap: 8px;
}
.breadcrumb a {
  color: var(--color-text-2);
  transition: color 0.2s ease;
}
.breadcrumb a:hover {
  color: var(--color-primary-light);
}
.breadcrumb .sep {
  color: var(--color-text-3);
}
.breadcrumb .current {
  color: var(--color-text-1);
}

/* Responsive */
@media (max-width: 1024px) {
  .cat-hero .container {
    grid-template-columns: 1fr;
    gap: 40px;
    text-align: center;
  }
  .cat-hero p.subtitle {
    margin-left: auto;
    margin-right: auto;
  }
  .cat-hero-btns {
    justify-content: center;
  }
  .cat-hero-tag {
    margin-left: auto;
    margin-right: auto;
  }
  .cat-hero-visual {
    max-width: 520px;
    margin: 0 auto;
  }
  .cat-hero-visual img {
    height: 320px;
  }
  .direction-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .process-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .cat-intro .content {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .cta-inner {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .main-nav {
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    background: rgba(11,15,26,0.98);
    backdrop-filter: blur(20px);
    flex-direction: column;
    padding: 16px;
    gap: 4px;
    transform: translateY(-120%);
    transition: transform 0.3s ease;
    border-bottom: 1px solid var(--color-line);
    z-index: 99;
    box-shadow: 0 20px 40px rgba(0,0,0,0.4);
  }
  .main-nav.open {
    transform: translateY(0);
  }
  .main-nav .nav-link {
    width: 100%;
    text-align: center;
    padding: 12px;
  }
  .nav-toggle {
    display: flex;
  }
  .nav-actions .search-box {
    display: none;
  }
  .nav-actions .btn-ghost {
    display: none;
  }
}
@media (max-width: 768px) {
  .container {
    padding-left: 16px;
    padding-right: 16px;
  }
  .section, .cat-intro, .cat-directions, .cat-scenarios, .cat-process, .cat-faq, .cat-cta {
    padding: 64px 0;
  }
  .direction-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  .scenario-list {
    gap: 12px;
  }
  .scenario-item {
    padding: 18px;
    gap: 14px;
  }
  .process-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  .cat-hero h1 {
    font-size: 26px;
    line-height: 36px;
  }
  .cat-hero p.subtitle {
    font-size: 14px;
  }
  .cat-hero-visual img {
    height: 220px;
  }
  .section-head h2, .cta-info h2 {
    font-size: 20px;
    line-height: 28px;
  }
  .intro-stats {
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
  }
  .intro-stat .num {
    font-size: 22px;
  }
  .cta-form-wrap {
    padding: 20px;
  }
  .footer-contact {
    flex-direction: column;
    gap: 8px;
  }
}
@media (max-width: 480px) {
  .nav-actions .btn-sm {
    display: none;
  }
  .intro-stat .num {
    font-size: 20px;
  }
  .breadcrumb {
    padding: 70px 0 0;
  }
  .direction-card .card-image {
    height: 140px;
  }
  .btn {
    padding: 10px 20px;
    font-size: 13px;
  }
}

/* roulang page: category2 */
:root {
  --color-bg: #0B0F1A;
  --color-bg-soft: #101826;
  --color-primary: #3B82F6;
  --color-primary-light: #60A5FA;
  --color-accent: #D4A853;
  --color-accent-light: #E8C97A;
  --color-text-1: #E5E9F0;
  --color-text-2: #94A3B8;
  --color-text-3: #64748B;
  --color-line: rgba(255,255,255,0.10);
  --color-card-bg: rgba(255,255,255,0.05);
  --color-danger: #F87171;
  --radius-lg: 16px;
  --radius-md: 10px;
  --radius-sm: 6px;
  --shadow-card: 0 8px 32px rgba(0,0,0,0.2), 0 0 0 1px rgba(59,130,246,0.12);
  --shadow-card-hover: 0 12px 40px rgba(0,0,0,0.3), 0 0 0 1px rgba(59,130,246,0.25);
  --transition: 0.25s ease;
}
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Inter", "Helvetica Neue", sans-serif;
  background: var(--color-bg);
  color: var(--color-text-1);
  font-size: 15px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; }
input, textarea { font-family: inherit; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.section { padding: 120px 0; position: relative; }
.section-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--color-primary-light);
  letter-spacing: 1px;
  font-weight: 600;
  text-transform: uppercase;
  margin-bottom: 12px;
}
.section-label::before {
  content: '';
  width: 20px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-primary));
}
.section-title {
  font-size: 34px;
  line-height: 1.3;
  font-weight: 700;
  margin-bottom: 16px;
  color: var(--color-text-1);
}
.section-subtitle {
  font-size: 16px;
  color: var(--color-text-2);
  max-width: 640px;
  line-height: 1.8;
  margin-bottom: 48px;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: var(--radius-md);
  font-size: 15px;
  font-weight: 500;
  transition: all var(--transition);
  border: none;
  line-height: 1.4;
}
.btn-primary {
  background: linear-gradient(135deg, #2563EB, #3B82F6);
  color: #fff;
  box-shadow: 0 0 20px rgba(59, 130, 246, 0.35);
}
.btn-primary:hover {
  filter: brightness(1.1);
  box-shadow: 0 0 32px rgba(59, 130, 246, 0.5);
  transform: translateY(-1px);
}
.btn-ghost {
  background: transparent;
  color: var(--color-text-1);
  border: 1px solid rgba(255,255,255,0.25);
}
.btn-ghost:hover {
  border-color: var(--color-primary);
  background: rgba(59, 130, 246, 0.1);
  color: var(--color-primary-light);
}
.btn-gold {
  background: linear-gradient(135deg, #C9954A, #D4A853);
  color: #1a1a1a;
  font-weight: 600;
  box-shadow: 0 0 20px rgba(212, 168, 83, 0.3);
}
.btn-gold:hover {
  filter: brightness(1.1);
  box-shadow: 0 0 32px rgba(212, 168, 83, 0.5);
  transform: translateY(-1px);
}
.btn-sm { padding: 7px 14px; font-size: 13px; border-radius: 8px; }

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 64px;
  background: rgba(11, 15, 26, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255,255,255,0.06);
  z-index: 1000;
  transition: background 0.3s ease;
}
.site-header.scrolled { background: rgba(11, 15, 26, 0.95); }
.header-inner {
  display: flex;
  align-items: center;
  height: 64px;
  gap: 24px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.logo-icon {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: radial-gradient(circle at 30% 30%, #60A5FA, #3B82F6 60%, #1D4ED8);
  box-shadow: 0 0 12px rgba(59, 130, 246, 0.5);
  position: relative;
}
.logo-icon::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 18px;
  height: 18px;
  border: 2px solid rgba(255,255,255,0.6);
  border-radius: 50%;
  transform: translate(-50%, -50%) rotate(45deg);
  border-left-color: transparent;
}
.logo-text {
  font-size: 18px;
  font-weight: 700;
  color: var(--color-text-1);
  letter-spacing: 0.5px;
}
.logo-sub {
  font-weight: 400;
  color: #64748B;
  margin-left: 1px;
}
.main-nav {
  display: flex;
  align-items: center;
  gap: 8px;
  flex: 1;
  margin-left: 16px;
}
.nav-link {
  padding: 8px 14px;
  font-size: 14px;
  color: var(--color-text-2);
  border-radius: 8px;
  transition: all 0.2s ease;
  position: relative;
  white-space: nowrap;
}
.nav-link:hover { color: var(--color-text-1); background: rgba(255,255,255,0.04); }
.nav-link.active {
  color: var(--color-primary-light);
  font-weight: 600;
}
.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: 2px;
  left: 14px;
  right: 14px;
  height: 2px;
  background: var(--color-primary);
  border-radius: 2px;
  box-shadow: 0 0 8px rgba(59, 130, 246, 0.6);
}
.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}
.search-box {
  display: flex;
  align-items: center;
  gap: 6px;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 20px;
  padding: 6px 14px;
  width: 160px;
  color: var(--color-text-3);
  transition: border-color 0.2s ease;
}
.search-box:focus-within {
  border-color: rgba(59,130,246,0.5);
  box-shadow: 0 0 0 3px rgba(59,130,246,0.1);
}
.search-input {
  background: transparent;
  border: none;
  outline: none;
  color: var(--color-text-1);
  font-size: 13px;
  width: 100%;
}
.search-input::placeholder { color: var(--color-text-3); }
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: transparent;
  border: none;
  padding: 6px;
}
.nav-toggle span {
  width: 22px;
  height: 2px;
  background: var(--color-text-1);
  border-radius: 2px;
  transition: 0.3s ease;
}

/* Hero */
.page-hero {
  position: relative;
  min-height: 70vh;
  display: flex;
  align-items: center;
  padding-top: 64px;
  background:
    radial-gradient(ellipse 60% 50% at 50% 30%, rgba(59, 130, 246, 0.12), transparent 70%),
    url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
}
.page-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, rgba(11,15,26,0.7), rgba(11,15,26,0.95));
  z-index: 1;
}
.hero-content {
  position: relative;
  z-index: 2;
  max-width: 750px;
  padding: 60px 0;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 16px;
  border-radius: 999px;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.12);
  font-size: 13px;
  color: var(--color-accent-light);
  margin-bottom: 24px;
  backdrop-filter: blur(8px);
}
.hero-badge i {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-accent);
  box-shadow: 0 0 8px var(--color-accent);
}
.page-hero h1 {
  font-size: 42px;
  line-height: 1.3;
  font-weight: 700;
  margin-bottom: 20px;
  color: #fff;
}
.page-hero h1 .hl {
  color: var(--color-accent-light);
}
.page-hero p.lead {
  font-size: 17px;
  line-height: 1.8;
  color: var(--color-text-2);
  margin-bottom: 32px;
  max-width: 620px;
}
.hero-ctas {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

/* Plan Compare */
.plan-section { padding: 120px 0; }
.plan-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 48px;
}
.plan-card {
  background: var(--color-card-bg);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  position: relative;
  transition: all var(--transition);
  box-shadow: var(--shadow-card);
  backdrop-filter: blur(8px);
}
.plan-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-card-hover);
  border-color: rgba(59,130,246,0.4);
}
.plan-card.recommended {
  border: 1px solid rgba(59,130,246,0.5);
  background: rgba(59,130,246,0.06);
  box-shadow: 0 0 0 1px rgba(59,130,246,0.25), 0 12px 40px rgba(0,0,0,0.3);
}
.plan-badge {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: linear-gradient(135deg, #C9954A, #D4A853);
  color: #1a1a1a;
  font-size: 12px;
  font-weight: 600;
  padding: 4px 16px;
  border-radius: 999px;
  box-shadow: 0 4px 12px rgba(212,168,83,0.3);
  white-space: nowrap;
}
.plan-name {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--color-text-1);
}
.plan-desc {
  font-size: 13px;
  color: var(--color-text-3);
  margin-bottom: 20px;
  line-height: 1.7;
}
.plan-price {
  font-size: 36px;
  font-weight: 700;
  color: var(--color-accent-light);
  font-family: "Inter", "Helvetica Neue", monospace;
  margin-bottom: 4px;
  letter-spacing: -1px;
}
.plan-price .unit {
  font-size: 14px;
  color: var(--color-text-3);
  font-weight: 400;
  margin-left: 4px;
  letter-spacing: normal;
}
.plan-original-price {
  font-size: 13px;
  color: var(--color-text-3);
  text-decoration: line-through;
  margin-bottom: 24px;
}
.plan-features {
  list-style: none;
  margin-bottom: 28px;
}
.plan-features li {
  padding: 8px 0;
  font-size: 14px;
  color: var(--color-text-2);
  display: flex;
  align-items: flex-start;
  gap: 10px;
  line-height: 1.6;
}
.plan-features li::before {
  content: '';
  width: 16px;
  height: 16px;
  flex-shrink: 0;
  margin-top: 3px;
  border-radius: 50%;
  background: rgba(59,130,246,0.15);
  position: relative;
}
.plan-features li::after {
  content: '✓';
  position: absolute;
  margin-left: -13px;
  color: var(--color-primary-light);
  font-size: 11px;
  font-weight: 700;
  line-height: 22px;
}
.plan-card.recommended .plan-features li::after { color: var(--color-accent-light); }
.plan-cta { width: 100%; }

/* Feature Highlights */
.feature-section {
  background: var(--color-bg-soft);
  position: relative;
}
.feature-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 40% 40% at 20% 50%, rgba(59,130,246,0.08), transparent 70%);
}
.feature-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-top: 48px;
}
.feature-card {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  transition: all var(--transition);
}
.feature-card:hover {
  border-color: rgba(59,130,246,0.3);
  transform: translateY(-3px);
}
.feature-icon {
  width: 48px;
  height: 48px;
  border-radius: 14px;
  background: rgba(59,130,246,0.12);
  border: 1px solid rgba(59,130,246,0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
  position: relative;
}
.feature-icon::before {
  content: '';
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--color-primary);
  box-shadow: 0 0 12px rgba(59,130,246,0.6);
}
.feature-icon.hot::before {
  background: var(--color-accent);
  box-shadow: 0 0 12px rgba(212,168,83,0.6);
}
.feature-card h3 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--color-text-1);
}
.feature-card p {
  font-size: 13px;
  color: var(--color-text-3);
  line-height: 1.7;
}

/* Scenario */
.scenario-section { padding: 120px 0; }
.scenario-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
  align-items: center;
  margin-top: 48px;
}
.scenario-image {
  border-radius: 20px;
  overflow: hidden;
  position: relative;
  box-shadow: var(--shadow-card);
}
.scenario-image img {
  width: 100%;
  height: 380px;
  object-fit: cover;
}
.scenario-image::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 20px;
  box-shadow: inset 0 0 60px rgba(11,15,26,0.4);
}
.scenario-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.scenario-item {
  display: flex;
  gap: 20px;
  background: var(--color-card-bg);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  padding: 24px;
  transition: all var(--transition);
}
.scenario-item:hover {
  border-color: rgba(59,130,246,0.3);
  transform: translateX(4px);
}
.scenario-num {
  font-size: 32px;
  font-weight: 800;
  color: rgba(59,130,246,0.35);
  font-family: "Inter", monospace;
  line-height: 1;
  flex-shrink: 0;
}
.scenario-item h3 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--color-text-1);
}
.scenario-item p {
  font-size: 14px;
  color: var(--color-text-2);
  line-height: 1.7;
}

/* Process */
.process-section {
  background: linear-gradient(to bottom, var(--color-bg-soft), var(--color-bg));
  position: relative;
}
.process-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-top: 48px;
  position: relative;
}
.process-step {
  text-align: center;
  position: relative;
  z-index: 2;
}
.step-dot {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: rgba(59,130,246,0.1);
  border: 1px solid rgba(59,130,246,0.3);
  margin: 0 auto 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  font-weight: 700;
  color: var(--color-primary-light);
  position: relative;
  z-index: 2;
}
.process-steps::before {
  content: '';
  position: absolute;
  top: 28px;
  left: 12%;
  right: 12%;
  height: 1px;
  background: rgba(59,130,246,0.2);
}
.process-step .step-title {
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--color-text-1);
}
.process-step .step-desc {
  font-size: 13px;
  color: var(--color-text-3);
  line-height: 1.7;
}

/* Testimonials */
.testimonial-section { padding: 120px 0; }
.testimonial-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 48px;
}
.testimonial-card {
  background: var(--color-card-bg);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  position: relative;
  transition: all var(--transition);
  box-shadow: var(--shadow-card);
}
.testimonial-card:hover {
  transform: translateY(-4px);
  border-color: rgba(59,130,246,0.3);
}
.testimonial-card::before {
  content: '“';
  font-size: 48px;
  color: rgba(59,130,246,0.3);
  font-family: Georgia, serif;
  position: absolute;
  top: 12px;
  right: 20px;
  line-height: 1;
}
.stars {
  display: flex;
  gap: 2px;
  margin-bottom: 12px;
}
.stars span {
  color: var(--color-accent);
  font-size: 14px;
}
.testimonial-card p {
  font-size: 14px;
  color: var(--color-text-2);
  line-height: 1.8;
  margin-bottom: 20px;
  font-style: italic;
}
.testimonial-author {
  display: flex;
  align-items: center;
  gap: 12px;
}
.author-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(59,130,246,0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-primary-light);
}
.author-name {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text-1);
}
.author-meta {
  font-size: 12px;
  color: var(--color-text-3);
}

/* FAQ */
.faq-section {
  background: var(--color-bg-soft);
  position: relative;
}
.faq-wrap {
  max-width: 800px;
  margin: 48px auto 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--color-card-bg);
  border: 1px solid var(--color-line);
  box-shadow: var(--shadow-card);
}
.faq-item {
  border-bottom: 1px solid rgba(255,255,255,0.06);
}
.faq-item:last-child { border-bottom: none; }
.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 28px;
  font-size: 15px;
  font-weight: 600;
  color: var(--color-text-1);
  cursor: pointer;
  transition: color 0.2s ease;
  gap: 16px;
}
.faq-question:hover { color: var(--color-primary-light); }
.faq-question .icon {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  position: relative;
  transition: transform 0.3s ease;
}
.faq-question .icon::before,
.faq-question .icon::after {
  content: '';
  position: absolute;
  background: var(--color-text-3);
  transition: background 0.3s ease;
}
.faq-question .icon::before {
  width: 14px;
  height: 2px;
  top: 9px;
  left: 3px;
}
.faq-question .icon::after {
  width: 2px;
  height: 14px;
  top: 3px;
  left: 9px;
}
.faq-question:hover .icon::before,
.faq-question:hover .icon::after { background: var(--color-primary-light); }
.faq-answer {
  max-height: 0;
  overflow: hidden;
  padding: 0 28px;
  font-size: 14px;
  color: var(--color-text-2);
  line-height: 1.8;
  transition: max-height 0.35s ease, padding 0.35s ease;
}
.faq-item.active .faq-answer {
  max-height: 400px;
  padding: 0 28px 20px;
}
.faq-item.active .faq-question .icon { transform: rotate(45deg); }
.faq-item.active .faq-question { color: var(--color-primary-light); }

/* CTA Contact */
.cta-contact {
  padding: 120px 0;
  position: relative;
  background:
    radial-gradient(ellipse 50% 60% at 50% 50%, rgba(59,130,246,0.1), transparent 70%),
    url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
}
.cta-contact::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(11,15,26,0.85);
}
.cta-inner {
  position: relative;
  z-index: 2;
  max-width: 900px;
  margin: 0 auto;
  text-align: center;
}
.cta-inner h2 {
  font-size: 36px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 16px;
  line-height: 1.3;
}
.cta-inner h2 .hl { color: var(--color-accent-light); }
.cta-inner p {
  font-size: 16px;
  color: var(--color-text-2);
  margin-bottom: 40px;
}
.cta-buttons {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

/* Contact Form Section */
.form-section { padding: 120px 0; position: relative; }
.form-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 48px;
  margin-top: 48px;
}
.form-left {
  background: var(--color-card-bg);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  padding: 32px;
  box-shadow: var(--shadow-card);
}
.form-left h3 {
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 24px;
  color: var(--color-text-1);
}
.form-group { margin-bottom: 20px; }
.form-group label {
  display: block;
  font-size: 14px;
  font-weight: 500;
  color: var(--color-text-1);
  margin-bottom: 6px;
}
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  height: 44px;
  border-radius: var(--radius-md);
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.12);
  padding: 0 14px;
  color: var(--color-text-1);
  font-size: 14px;
  transition: all 0.2s ease;
}
.form-group textarea { height: 100px; padding: 12px 14px; resize: vertical; line-height: 1.6; }
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(59,130,246,0.15);
}
.form-group select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12' fill='none' stroke='%2394A3B8' stroke-width='2'%3E%3Cpolyline points='2,4 6,8 10,4'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
}
.form-tip {
  font-size: 12px;
  color: var(--color-text-3);
  margin-top: 12px;
}
.form-right {
  display: flex;
  flex-direction: column;
  gap: 24px;
}
.contact-info-card {
  background: var(--color-card-bg);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  padding: 28px;
  box-shadow: var(--shadow-card);
}
.contact-info-card h4 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 16px;
  color: var(--color-text-1);
}
.contact-info-card ul { list-style: none; }
.contact-info-card li {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 0;
  font-size: 14px;
  color: var(--color-text-2);
}
.contact-info-card li svg {
  width: 16px;
  height: 16px;
  color: var(--color-primary-light);
  flex-shrink: 0;
}
.qr-card {
  background: var(--color-card-bg);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  padding: 28px;
  text-align: center;
  box-shadow: var(--shadow-card);
}
.qr-card h4 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 12px;
  color: var(--color-text-1);
}
.qr-placeholder {
  width: 140px;
  height: 140px;
  border-radius: 12px;
  margin: 0 auto;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  color: var(--color-text-3);
}
.qr-card p {
  font-size: 13px;
  color: var(--color-text-3);
  margin-top: 12px;
}

/* Footer */
.site-footer {
  background: #080C14;
  border-top: 1px solid rgba(255,255,255,0.06);
  padding: 64px 0 32px;
}
.footer-inner {
  text-align: center;
}
.footer-logo {
  justify-content: center;
  margin-bottom: 16px;
}
.footer-desc {
  font-size: 14px;
  color: var(--color-text-3);
  margin-bottom: 24px;
}
.footer-contact {
  display: flex;
  justify-content: center;
  gap: 24px;
  margin-bottom: 24px;
  flex-wrap: wrap;
}
.footer-contact span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: var(--color-text-3);
}
.footer-contact svg {
  color: var(--color-text-3);
}
.footer-copy {
  font-size: 13px;
  color: var(--color-text-3);
  border-top: 1px solid rgba(255,255,255,0.04);
  padding-top: 24px;
}

/* Animations */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: translateY(0); }
}
.animate { animation: fadeUp 0.6s ease forwards; opacity: 0; }
.animate-delay-1 { animation-delay: 0.1s; }
.animate-delay-2 { animation-delay: 0.2s; }
.animate-delay-3 { animation-delay: 0.3s; }

/* Responsive */
@media (max-width: 1024px) {
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
  .process-steps { grid-template-columns: repeat(2, 1fr); gap: 32px; }
  .process-steps::before { display: none; }
  .plan-grid { grid-template-columns: repeat(2, 1fr); }
  .plan-card:last-child { grid-column: span 2; }
  .testimonial-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
  .section { padding: 64px 0; }
  .section-title { font-size: 26px; line-height: 1.35; }
  .header-inner { gap: 12px; }
  .main-nav {
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    flex-direction: column;
    background: rgba(11,15,26,0.97);
    backdrop-filter: blur(12px);
    padding: 16px 24px;
    gap: 4px;
    margin: 0;
    border-bottom: 1px solid var(--color-line);
    transform: translateY(-120%);
    transition: transform 0.3s ease;
    z-index: 999;
    align-items: stretch;
  }
  .main-nav.open { transform: translateY(0); }
  .nav-link { padding: 12px 14px; font-size: 15px; }
  .nav-actions .search-box { display: none; }
  .nav-actions .btn-ghost { display: none; }
  .nav-toggle { display: flex; }
  .page-hero { min-height: auto; padding: 100px 0 60px; }
  .page-hero h1 { font-size: 30px; line-height: 1.35; }
  .page-hero p.lead { font-size: 15px; }
  .hero-content { padding: 40px 0; }
  .plan-grid,
  .scenario-grid,
  .form-grid { grid-template-columns: 1fr; }
  .plan-card:last-child { grid-column: auto; }
  .scenario-image img { height: 260px; }
  .testimonial-grid { grid-template-columns: 1fr; }
  .footer-contact { flex-direction: column; gap: 8px; align-items: center; }
  .cta-inner h2 { font-size: 28px; }
  .form-left { padding: 24px; }
  .nav-actions { gap: 8px; }
}
@media (max-width: 520px) {
  .container { padding: 0 16px; }
  .feature-grid { grid-template-columns: 1fr; }
  .process-steps { grid-template-columns: 1fr; text-align: center; }
  .step-dot { margin: 0 auto 12px; }
  .hero-ctas { flex-direction: column; width: 100%; }
  .hero-ctas .btn { width: 100%; }
  .plan-grid { gap: 16px; }
  .plan-card { padding: 24px 20px; }
  .cta-buttons { flex-direction: column; width: 100%; }
  .cta-buttons .btn { width: 100%; }
}

/* roulang page: article */
:root {
  --color-bg: #0B0F1A;
  --color-bg-soft: #101826;
  --color-primary: #3B82F6;
  --color-primary-light: #60A5FA;
  --color-accent: #D4A853;
  --color-accent-light: #E8C97A;
  --color-text-1: #E5E9F0;
  --color-text-2: #94A3B8;
  --color-text-3: #64748B;
  --color-line: rgba(255,255,255,0.10);
  --color-card-bg: rgba(255,255,255,0.05);
  --radius-lg: 16px;
  --radius-md: 10px;
  --radius-sm: 6px;
  --shadow-card: 0 8px 32px rgba(0,0,0,0.2), 0 0 0 1px rgba(59,130,246,0.12);
  --shadow-hover: 0 12px 40px rgba(0,0,0,0.3);
  --space-section: 120px;
  --container-w: 1200px;
  --font-cn: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", sans-serif;
  --font-en: "Inter", "Helvetica Neue", sans-serif;
}
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-cn);
  background: var(--color-bg);
  color: var(--color-text-1);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; }
input, textarea { font-family: inherit; }
ul, ol { list-style: none; }

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

/* Header */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  height: 64px;
  background: rgba(11, 15, 26, 0.85);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid rgba(255,255,255,0.06);
  transition: background 0.3s ease;
}
.site-header.scrolled {
  background: rgba(11, 15, 26, 0.95);
  box-shadow: 0 4px 24px rgba(0,0,0,0.4);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  gap: 24px;
}
.logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.logo-icon {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: radial-gradient(circle at 30% 30%, #6EA8FE, #2563EB 70%);
  box-shadow: 0 0 14px rgba(59,130,246,0.6);
  position: relative;
}
.logo-icon::after {
  content: "";
  position: absolute;
  width: 10px;
  height: 10px;
  border: 2px solid rgba(255,255,255,0.8);
  border-radius: 50%;
  top: 6px; left: 6px;
  background: transparent;
}
.logo-text {
  font-size: 18px;
  font-weight: 700;
  color: var(--color-text-1);
  letter-spacing: 0.5px;
  white-space: nowrap;
}
.logo-sub {
  font-weight: 400;
  color: var(--color-text-3);
  margin-left: 2px;
  font-size: 15px;
}
.main-nav {
  display: flex;
  align-items: center;
  gap: 6px;
}
.nav-link {
  padding: 10px 16px;
  font-size: 14px;
  font-weight: 500;
  color: var(--color-text-2);
  border-radius: 8px;
  transition: all 0.25s ease;
  position: relative;
  white-space: nowrap;
}
.nav-link:hover {
  color: var(--color-text-1);
  background: rgba(255,255,255,0.04);
}
.nav-link.active {
  color: var(--color-primary-light);
}
.nav-link.active::after {
  content: "";
  position: absolute;
  left: 16px; right: 16px;
  bottom: -2px;
  height: 2px;
  background: linear-gradient(90deg, var(--color-primary), transparent);
  border-radius: 2px;
  box-shadow: 0 0 8px rgba(59,130,246,0.5);
}
.nav-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}
.search-box {
  display: flex;
  align-items: center;
  gap: 8px;
  width: 180px;
  height: 36px;
  padding: 0 12px;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.10);
  border-radius: 20px;
  color: var(--color-text-3);
  transition: all 0.25s ease;
}
.search-box:focus-within {
  border-color: var(--color-primary);
  background: rgba(255,255,255,0.06);
  box-shadow: 0 0 0 3px rgba(59,130,246,0.12);
}
.search-input {
  width: 100%;
  background: transparent;
  border: none;
  outline: none;
  color: var(--color-text-1);
  font-size: 13px;
}
.search-input::placeholder { color: var(--color-text-3); }
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: transparent;
  border: none;
  padding: 6px;
}
.nav-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--color-text-2);
  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); }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 12px 24px;
  font-size: 14px;
  font-weight: 600;
  border-radius: var(--radius-md);
  transition: all 0.25s ease;
  border: none;
  line-height: 1.4;
  white-space: nowrap;
}
.btn-primary {
  background: linear-gradient(135deg, #2563EB, #3B82F6);
  color: #fff;
  box-shadow: 0 0 20px rgba(59,130,246,0.35);
}
.btn-primary:hover {
  filter: brightness(1.1);
  box-shadow: 0 0 32px rgba(59,130,246,0.5);
  transform: translateY(-2px);
}
.btn-ghost {
  background: transparent;
  border: 1px solid rgba(255,255,255,0.25);
  color: var(--color-text-1);
}
.btn-ghost:hover {
  border-color: var(--color-primary);
  background: rgba(59,130,246,0.1);
  color: var(--color-primary-light);
}
.btn-secondary {
  background: transparent;
  border: 1px solid rgba(255,255,255,0.25);
  color: var(--color-text-1);
}
.btn-secondary:hover {
  border-color: var(--color-primary);
  background: rgba(59,130,246,0.1);
  color: var(--color-primary-light);
}
.btn-sm { padding: 8px 16px; font-size: 13px; border-radius: 8px; }
.btn-gold {
  background: linear-gradient(135deg, #C9954A, #D4A853);
  color: #111;
  box-shadow: 0 0 20px rgba(212,168,83,0.3);
}
.btn-gold:hover {
  filter: brightness(1.08);
  box-shadow: 0 0 30px rgba(212,168,83,0.5);
  transform: translateY(-2px);
}

/* Article Hero */
.article-hero {
  position: relative;
  padding: 180px 0 80px;
  background: linear-gradient(to bottom, rgba(11,15,26,0.4), rgba(11,15,26,0.95)), url('/assets/images/backpic/back-1.webp') center 30% / cover no-repeat;
  border-bottom: 1px solid rgba(255,255,255,0.05);
  overflow: hidden;
}
.article-hero::before {
  content: "";
  position: absolute;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(59,130,246,0.35), transparent 70%);
  top: -200px; right: -100px;
  pointer-events: none;
}
.article-hero .container { position: relative; z-index: 2; }
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: var(--color-text-3);
  margin-bottom: 24px;
}
.breadcrumb a {
  color: var(--color-text-2);
  transition: color 0.2s;
}
.breadcrumb a:hover { color: var(--color-primary-light); }
.breadcrumb .divider { color: var(--color-text-3); opacity: 0.6; }
.breadcrumb .crumb-cat { color: var(--color-text-2); }
.breadcrumb .crumb-current {
  color: var(--color-text-3);
  max-width: 300px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.article-title {
  font-size: 34px;
  font-weight: 700;
  line-height: 1.4;
  color: var(--color-text-1);
  margin-bottom: 20px;
  letter-spacing: 0.5px;
  max-width: 880px;
}
.article-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 8px;
}
.meta-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 14px;
  font-size: 13px;
  color: var(--color-primary-light);
  background: rgba(59,130,246,0.15);
  border: 1px solid rgba(59,130,246,0.25);
  border-radius: 999px;
}
.meta-time {
  font-size: 13px;
  color: var(--color-text-3);
}
.meta-time svg { vertical-align: -2px; margin-right: 4px; }

/* Article Body */
.article-body {
  padding: 80px 0 40px;
  background: var(--color-bg);
}
.article-content {
  max-width: 860px;
  margin: 0 auto;
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  padding: 48px 56px;
}
.article-content h2 {
  font-size: 24px;
  font-weight: 700;
  color: var(--color-text-1);
  margin-top: 48px;
  margin-bottom: 24px;
  padding-bottom: 12px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.article-content h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--color-text-1);
  margin-top: 32px;
  margin-bottom: 16px;
}
.article-content p {
  font-size: 15px;
  line-height: 1.8;
  color: var(--color-text-2);
  margin-bottom: 16px;
}
.article-content ul,
.article-content ol {
  margin: 0 0 20px 20px;
  color: var(--color-text-2);
  font-size: 15px;
  line-height: 1.8;
}
.article-content ul { list-style: disc; }
.article-content ol { list-style: decimal; }
.article-content blockquote {
  border-left: 3px solid var(--color-primary);
  background: rgba(59,130,246,0.06);
  padding: 16px 24px;
  margin: 24px 0;
  border-radius: 0 12px 12px 0;
  color: var(--color-text-2);
  font-size: 15px;
}
.article-content img {
  border-radius: 12px;
  margin: 24px 0;
  box-shadow: 0 8px 24px rgba(0,0,0,0.3);
}
.article-content figcaption {
  text-align: center;
  font-size: 13px;
  color: var(--color-text-3);
  margin-top: -12px;
  margin-bottom: 20px;
}
.article-content a {
  color: var(--color-primary-light);
  border-bottom: 1px solid rgba(59,130,246,0.3);
  transition: all 0.2s;
}
.article-content a:hover { color: var(--color-accent-light); border-color: var(--color-accent); }
.article-content code {
  background: rgba(255,255,255,0.08);
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 14px;
  color: var(--color-accent-light);
}

/* Article Not Found */
.article-not-found {
  max-width: 600px;
  margin: 60px auto;
  text-align: center;
  padding: 64px 48px;
  background: var(--color-card-bg);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
}
.article-not-found .not-found-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 24px;
  border-radius: 50%;
  background: rgba(59,130,246,0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
  border: 1px solid rgba(59,130,246,0.3);
}
.article-not-found h2 {
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--color-text-1);
}
.article-not-found p {
  color: var(--color-text-3);
  font-size: 14px;
  margin-bottom: 28px;
}

/* Related Section */
.related-section {
  padding: 80px 0 40px;
  background: var(--color-bg);
}
.section-head {
  text-align: center;
  margin-bottom: 48px;
}
.section-head .section-kicker {
  font-size: 13px;
  color: var(--color-primary-light);
  text-transform: none;
  letter-spacing: 2px;
  margin-bottom: 8px;
  display: inline-block;
  background: rgba(59,130,246,0.12);
  padding: 4px 14px;
  border-radius: 999px;
}
.section-head h2 {
  font-size: 28px;
  font-weight: 700;
  color: var(--color-text-1);
  letter-spacing: 0.5px;
}
.related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.related-card {
  background: var(--color-card-bg);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  overflow: hidden;
  transition: all 0.3s ease;
  display: block;
}
.related-card:hover {
  transform: translateY(-4px);
  border-color: rgba(59,130,246,0.4);
  box-shadow: 0 12px 40px rgba(0,0,0,0.3), 0 0 0 1px rgba(59,130,246,0.2);
}
.related-card img {
  width: 100%;
  height: 160px;
  object-fit: cover;
}
.related-card .related-body {
  padding: 20px 24px 24px;
}
.related-card .tag {
  display: inline-block;
  font-size: 12px;
  color: var(--color-primary-light);
  background: rgba(59,130,246,0.15);
  padding: 3px 10px;
  border-radius: 6px;
  margin-bottom: 10px;
}
.related-card h3 {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-text-1);
  margin-bottom: 8px;
  line-height: 1.4;
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
  overflow: hidden;
}
.related-card p {
  font-size: 13px;
  line-height: 1.7;
  color: var(--color-text-3);
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
  overflow: hidden;
}

/* Back Entry */
.back-entry {
  padding: 40px 0 100px;
  text-align: center;
  background: var(--color-bg);
}

/* Footer */
.site-footer {
  background: #080C14;
  border-top: 1px solid rgba(255,255,255,0.06);
  padding: 56px 0 40px;
  margin-top: 40px;
}
.footer-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 16px;
}
.footer-logo { justify-content: center; }
.footer-desc {
  font-size: 14px;
  color: var(--color-text-3);
  max-width: 320px;
  line-height: 1.6;
}
.footer-contact {
  display: flex;
  align-items: center;
  gap: 28px;
  flex-wrap: wrap;
  justify-content: center;
  font-size: 13px;
  color: var(--color-text-3);
}
.footer-contact span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.footer-contact svg { color: var(--color-text-2); }
.footer-copy {
  font-size: 13px;
  color: var(--color-text-3);
  margin-top: 8px;
  padding-top: 16px;
  border-top: 1px solid rgba(255,255,255,0.06);
  width: 100%;
  max-width: 480px;
}

/* Responsive */
@media (max-width: 1024px) {
  :root { --space-section: 80px; }
  .main-nav { display: none; }
  .nav-actions .search-box { display: none; }
  .nav-toggle { display: flex; }
  .main-nav.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 64px;
    left: 0; right: 0;
    background: rgba(11,15,26,0.97);
    backdrop-filter: blur(24px);
    padding: 16px 24px 24px;
    gap: 8px;
    border-bottom: 1px solid rgba(255,255,255,0.08);
    box-shadow: 0 20px 40px rgba(0,0,0,0.5);
  }
  .main-nav.open .nav-link {
    width: 100%;
    text-align: left;
    padding: 14px 16px;
    font-size: 16px;
  }
  .main-nav.open .nav-link.active::after { left: 16px; bottom: 4px; right: auto; width: 32px; }
  .header-inner { gap: 12px; }
  .nav-actions .btn-ghost { display: inline-flex; }
  .article-hero { padding: 140px 0 60px; }
  .article-title { font-size: 28px; }
  .article-content { padding: 36px 32px; }
  .related-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
}
@media (max-width: 768px) {
  :root { --space-section: 64px; }
  .container { padding: 0 16px; }
  .logo-text { font-size: 16px; }
  .logo-sub { font-size: 14px; }
  .nav-actions .btn-ghost { display: none; }
  .nav-actions .btn-primary { padding: 8px 14px; font-size: 12px; }
  .article-hero { padding: 120px 0 48px; }
  .article-title { font-size: 24px; line-height: 1.5; }
  .article-meta { gap: 8px; }
  .article-content { padding: 28px 20px; }
  .article-content h2 { font-size: 20px; }
  .related-grid { grid-template-columns: 1fr; gap: 12px; }
  .related-card img { height: 180px; }
  .back-entry { padding: 32px 0 64px; }
  .footer-inner { gap: 12px; }
  .footer-contact { gap: 12px; flex-direction: column; }
  .section-head h2 { font-size: 24px; }
}
@media (max-width: 520px) {
  .logo-sub { display: none; }
  .article-hero { background-position: 60% top; }
  .breadcrumb .crumb-current { max-width: 160px; }
  .article-hero .btn { width: 100%; margin-bottom: 8px; }
  .article-title { font-size: 22px; }
  .article-content h2 { margin-top: 32px; }
  .article-content h3 { font-size: 16px; }
  .article-content p { font-size: 14px; }
  .meta-badge { font-size: 12px; padding: 3px 10px; }
  .meta-time { font-size: 12px; }
  .section-head { margin-bottom: 32px; }
  .section-head h2 { font-size: 22px; }
  .related-card .related-body { padding: 16px 18px 20px; }
}

/* roulang page: category3 */
/* ============ 设计变量 ============ */
:root {
  --color-bg: #0B0F1A;
  --color-bg-soft: #101826;
  --color-primary: #3B82F6;
  --color-primary-light: #60A5FA;
  --color-accent: #D4A853;
  --color-accent-light: #E8C97A;
  --color-text-1: #E5E9F0;
  --color-text-2: #94A3B8;
  --color-text-3: #64748B;
  --color-line: rgba(255,255,255,0.10);
  --color-card-bg: rgba(255,255,255,0.05);
  --color-danger: #F87171;
  --radius-lg: 16px;
  --radius-md: 10px;
  --radius-sm: 6px;
  --shadow-card: 0 8px 32px rgba(0,0,0,0.2);
  --shadow-hover: 0 12px 40px rgba(0,0,0,0.3);
  --glow-blue: 0 0 0 1px rgba(59,130,246,0.12);
  --transition: 0.25s ease;
}

/* ============ Reset / Base ============ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  background: var(--color-bg);
  color: var(--color-text-1);
  font-size: 15px;
  line-height: 24px;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
button { font-family: inherit; cursor: pointer; }
input, textarea, select { font-family: inherit; font-size: 14px; }
ul { list-style: none; }
.container { max-width: 1200px; margin: 0 auto; padding-left: 24px; padding-right: 24px; }
.section { padding: 100px 0; position: relative; }

/* ============ 按钮 ============ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: var(--radius-md);
  font-size: 15px;
  font-weight: 600;
  line-height: 1;
  border: none;
  transition: all var(--transition);
  white-space: nowrap;
}
.btn-primary {
  background: linear-gradient(135deg, #2563EB, #3B82F6);
  color: #fff;
  box-shadow: 0 0 20px rgba(59,130,246,0.35);
}
.btn-primary:hover {
  filter: brightness(1.1);
  box-shadow: 0 0 32px rgba(59,130,246,0.5);
  transform: translateY(-2px);
}
.btn-ghost {
  background: transparent;
  border: 1px solid rgba(255,255,255,0.25);
  color: var(--color-text-1);
}
.btn-ghost:hover {
  border-color: var(--color-primary);
  background: rgba(59,130,246,0.10);
  color: #fff;
}
.btn-gold {
  background: linear-gradient(135deg, #C9954A, #D4A853);
  color: #0B0F1A;
  box-shadow: 0 0 20px rgba(212,168,83,0.3);
}
.btn-gold:hover {
  filter: brightness(1.08);
  box-shadow: 0 0 32px rgba(212,168,83,0.45);
  transform: translateY(-2px);
}
.btn-sm { padding: 9px 18px; font-size: 13px; }
.btn-block { width: 100%; }

/* ============ Header / Nav ============ */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  height: 64px;
  background: rgba(11,15,26,0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(255,255,255,0.06);
  transition: background 0.3s ease;
}
.site-header.scrolled { background: rgba(11,15,26,0.95); }
.header-inner {
  height: 64px;
  display: flex;
  align-items: center;
  gap: 24px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.logo-icon {
  width: 28px; height: 28px;
  border-radius: 50%;
  background: radial-gradient(circle at 35% 35%, var(--color-primary-light), var(--color-primary));
  box-shadow: 0 0 12px rgba(59,130,246,0.5);
  position: relative;
}
.logo-icon::after {
  content: "";
  position: absolute;
  top: 8px; left: 16px;
  width: 14px; height: 7px;
  border: 2px solid rgba(255,255,255,0.7);
  border-left: none;
  border-bottom: none;
  border-radius: 0 10px 0 0;
  transform: rotate(-20deg);
}
.logo-text { font-size: 18px; font-weight: 700; color: var(--color-text-1); letter-spacing: 1px; }
.logo-sub { font-weight: 400; color: var(--color-text-3); font-size: 15px; }
.main-nav { display: flex; align-items: center; gap: 6px; flex: 1; }
.nav-link {
  position: relative;
  padding: 8px 14px;
  font-size: 14px;
  color: var(--color-text-2);
  border-radius: var(--radius-sm);
  transition: color var(--transition);
}
.nav-link:hover { color: var(--color-text-1); }
.nav-link.active { color: var(--color-primary-light); }
.nav-link.active::after {
  content: "";
  position: absolute;
  left: 14px; right: 14px; bottom: 0;
  height: 2px;
  background: var(--color-primary);
  box-shadow: 0 0 8px rgba(59,130,246,0.6);
  border-radius: 2px;
}
.nav-actions { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }
.search-box {
  display: flex;
  align-items: center;
  gap: 6px;
  width: 160px;
  height: 34px;
  padding: 0 12px;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 20px;
  color: var(--color-text-3);
  transition: border-color var(--transition);
}
.search-box:focus-within { border-color: var(--color-primary); }
.search-input {
  border: none;
  background: transparent;
  outline: none;
  color: var(--color-text-1);
  font-size: 13px;
  width: 100%;
}
.search-input::placeholder { color: var(--color-text-3); }
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  background: transparent;
  border: none;
  border-radius: var(--radius-sm);
}
.nav-toggle span {
  display: block;
  width: 22px; height: 2px;
  background: var(--color-text-2);
  border-radius: 2px;
  transition: all var(--transition);
}
.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 Banner ============ */
.category-hero {
  position: relative;
  min-height: 70vh;
  display: flex;
  align-items: center;
  padding: 120px 0 80px;
  overflow: hidden;
}
.hero-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  z-index: 0;
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 35% 40%, rgba(59,130,246,0.22), rgba(11,15,26,0.82) 60%, var(--color-bg) 100%);
  z-index: 1;
}
.hero-content { position: relative; z-index: 2; }
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--color-text-3);
  margin-bottom: 24px;
}
.breadcrumb a { color: var(--color-text-2); transition: color var(--transition); }
.breadcrumb a:hover { color: var(--color-primary-light); }
.breadcrumb .sep { color: var(--color-text-3); }
.category-hero h1 {
  font-size: 34px;
  line-height: 48px;
  font-weight: 700;
  color: var(--color-text-1);
  margin-bottom: 16px;
}
.text-gold { color: var(--color-accent); }
.hero-sub {
  font-size: 17px;
  line-height: 30px;
  color: var(--color-text-2);
  max-width: 560px;
  margin-bottom: 32px;
}
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 40px; }
.hero-tags { display: flex; gap: 12px; flex-wrap: wrap; }
.hero-tag {
  padding: 7px 18px;
  font-size: 13px;
  color: var(--color-text-2);
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.10);
  border-radius: 999px;
  backdrop-filter: blur(8px);
}
.hero-tag:first-child { color: var(--color-accent-light); border-color: rgba(212,168,83,0.3); }

/* ============ Section Head ============ */
.section-head { text-align: center; margin-bottom: 56px; }
.section-head h2 {
  font-size: 24px;
  line-height: 34px;
  font-weight: 700;
  color: var(--color-text-1);
  margin-bottom: 8px;
}
.section-head p { font-size: 14px; color: var(--color-text-3); line-height: 24px; }
.section-head .head-line {
  width: 48px; height: 3px;
  background: linear-gradient(90deg, var(--color-primary), transparent);
  border-radius: 3px;
  margin: 16px auto 0;
}

/* ============ 简介区 ============ */
.intro-section { padding-top: 40px; }
.intro-card {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  background: var(--color-card-bg);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  padding: 40px;
  box-shadow: var(--shadow-card);
  box-shadow: var(--glow-blue), var(--shadow-card);
  align-items: center;
}
.intro-media img {
  width: 100%;
  height: 260px;
  object-fit: cover;
  border-radius: var(--radius-lg);
}
.intro-body h2 { font-size: 22px; font-weight: 700; margin-bottom: 16px; }
.intro-body p { color: var(--color-text-2); line-height: 28px; margin-bottom: 20px; }
.intro-points { display: flex; gap: 16px; flex-wrap: wrap; }
.intro-points li {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: var(--color-text-2);
  padding: 6px 14px;
  background: rgba(59,130,246,0.08);
  border: 1px solid rgba(59,130,246,0.2);
  border-radius: 999px;
}
.intro-points li::before {
  content: "";
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--color-accent);
}

/* ============ 故事卡片 ============ */
.stories-section { padding-top: 20px; }
.stories-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.story-card {
  display: block;
  background: var(--color-card-bg);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition);
  box-shadow: var(--glow-blue), var(--shadow-card);
}
.story-card:hover {
  transform: translateY(-4px);
  border-color: rgba(59,130,246,0.4);
  box-shadow: 0 12px 40px rgba(0,0,0,0.3), 0 0 0 1px rgba(59,130,246,0.3);
}
.story-cover { position: relative; height: 200px; overflow: hidden; }
.story-cover img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.4s ease; }
.story-card:hover .story-cover img { transform: scale(1.04); }
.story-tag {
  position: absolute;
  top: 14px; left: 14px;
  padding: 4px 12px;
  font-size: 12px;
  color: var(--color-primary-light);
  background: rgba(59,130,246,0.15);
  border: 1px solid rgba(59,130,246,0.25);
  border-radius: var(--radius-sm);
  backdrop-filter: blur(8px);
}
.story-body { padding: 24px; }
.story-body h3 {
  font-size: 16px;
  font-weight: 600;
  line-height: 24px;
  color: var(--color-text-1);
  margin-bottom: 10px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.story-body p {
  font-size: 13px;
  line-height: 22px;
  color: var(--color-text-2);
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 16px;
}
.story-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 12px;
  color: var(--color-text-3);
  border-top: 1px solid rgba(255,255,255,0.06);
  padding-top: 14px;
}
.story-meta .dot { width: 3px; height: 3px; border-radius: 50%; background: var(--color-text-3); }
.story-meta .read-more { margin-left: auto; color: var(--color-primary-light); font-size: 12px; }

/* ============ 时间线 ============ */
.timeline-section { position: relative; }
.timeline-section::before {
  content: "";
  position: absolute;
  top: 0; bottom: 0; left: 50%;
  width: 1px;
  background: linear-gradient(180deg, transparent, rgba(59,130,246,0.3), transparent);
}
.timeline { position: relative; max-width: 900px; margin: 0 auto; }
.timeline-item {
  display: flex;
  align-items: flex-start;
  gap: 40px;
  margin-bottom: 48px;
  position: relative;
}
.timeline-item:nth-child(odd) .timeline-content { text-align: right; }
.timeline-item:nth-child(even) .timeline-content { order: -1; }
.timeline-dot {
  width: 16px; height: 16px;
  border-radius: 50%;
  background: var(--color-primary);
  border: 3px solid var(--color-bg);
  box-shadow: 0 0 0 3px rgba(59,130,246,0.3), 0 0 16px rgba(59,130,246,0.5);
  flex-shrink: 0;
  margin-top: 6px;
  position: relative;
  z-index: 1;
}
.timeline-content {
  flex: 1;
  background: var(--color-card-bg);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: all var(--transition);
}
.timeline-content:hover {
  border-color: rgba(59,130,246,0.3);
  box-shadow: 0 0 0 1px rgba(59,130,246,0.2), var(--shadow-card);
}
.timeline-phase {
  font-size: 12px;
  color: var(--color-accent);
  margin-bottom: 8px;
  font-weight: 600;
}
.timeline-content h3 { font-size: 17px; font-weight: 600; margin-bottom: 10px; }
.timeline-content p { font-size: 14px; color: var(--color-text-2); line-height: 26px; }

/* ============ 主题清单 ============ */
.themes-section { background: var(--color-bg-soft); }
.themes-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.theme-card {
  display: block;
  padding: 32px 24px;
  background: var(--color-card-bg);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  text-align: center;
  transition: all var(--transition);
  box-shadow: var(--glow-blue);
}
.theme-card:hover {
  transform: translateY(-4px);
  border-color: rgba(59,130,246,0.35);
  box-shadow: 0 12px 40px rgba(0,0,0,0.3), 0 0 0 1px rgba(59,130,246,0.25);
}
.theme-icon {
  width: 52px; height: 52px;
  margin: 0 auto 16px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(59,130,246,0.10);
  border: 1px solid rgba(59,130,246,0.2);
  color: var(--color-primary-light);
}
.theme-card h3 { font-size: 16px; font-weight: 600; margin-bottom: 8px; }
.theme-card p { font-size: 13px; color: var(--color-text-2); line-height: 22px; }

/* ============ FAQ ============ */
.faq-section { padding-top: 40px; }
.faq-list { max-width: 820px; margin: 0 auto; }
.faq-item {
  background: var(--color-card-bg);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  margin-bottom: 14px;
  overflow: hidden;
  transition: border-color var(--transition);
}
.faq-item:hover { border-color: rgba(59,130,246,0.25); }
.faq-item summary {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 22px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  list-style: none;
  color: var(--color-text-1);
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-icon {
  position: relative;
  width: 18px; height: 18px;
  flex-shrink: 0;
}
.faq-icon::before,
.faq-icon::after {
  content: "";
  position: absolute;
  background: var(--color-text-3);
  border-radius: 2px;
  transition: all var(--transition);
}
.faq-icon::before { width: 18px; height: 2px; top: 8px; left: 0; }
.faq-icon::after { width: 2px; height: 18px; top: 0; left: 8px; }
.faq-item[open] .faq-icon::after { transform: scaleY(0); }
.faq-item[open] { border-color: rgba(59,130,246,0.3); }
.faq-item[open] .faq-icon::before,
.faq-item[open] .faq-icon::after { background: var(--color-primary); }
.faq-answer { padding: 0 22px 20px; font-size: 13px; line-height: 24px; color: var(--color-text-2); }

/* ============ 咨询表单 ============ */
.contact-section { background: var(--color-bg-soft); position: relative; overflow: hidden; }
.contact-section::before {
  content: "";
  position: absolute;
  top: -30%; right: -10%;
  width: 400px; height: 400px;
  background: radial-gradient(circle, rgba(59,130,246,0.15), transparent 70%);
  pointer-events: none;
}
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}
.contact-info h2 { font-size: 26px; line-height: 36px; font-weight: 700; margin-bottom: 16px; }
.contact-info p { color: var(--color-text-2); line-height: 28px; margin-bottom: 28px; }
.contact-meta-list { display: flex; flex-direction: column; gap: 14px; }
.contact-meta-list li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: var(--color-text-2);
}
.contact-meta-list li svg { color: var(--color-primary); }
.contact-form {
  background: var(--color-card-bg);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  padding: 32px;
  box-shadow: var(--glow-blue), var(--shadow-card);
}
.contact-form label {
  display: block;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text-1);
  margin-bottom: 6px;
}
.form-group { margin-bottom: 18px; }
.form-input {
  width: 100%;
  height: 44px;
  padding: 0 14px;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: var(--radius-md);
  color: var(--color-text-1);
  font-size: 14px;
  outline: none;
  transition: all var(--transition);
}
.form-input:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(59,130,246,0.15);
}
textarea.form-input { height: 100px; padding: 12px 14px; resize: vertical; }
.form-note {
  font-size: 12px;
  color: var(--color-text-3);
  text-align: center;
  margin-top: 12px;
}

/* ============ Footer ============ */
.site-footer {
  background: #080C14;
  border-top: 1px solid rgba(255,255,255,0.06);
  padding: 48px 0 32px;
}
.footer-inner { display: flex; flex-direction: column; align-items: center; text-align: center; }
.footer-logo { margin-bottom: 14px; }
.footer-desc {
  font-size: 14px;
  color: var(--color-text-3);
  margin-bottom: 20px;
}
.footer-contact {
  display: flex;
  gap: 28px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 20px;
}
.footer-contact span {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: var(--color-text-3);
}
.footer-copy { font-size: 12px; color: var(--color-text-3); }

/* ============ 响应式 ============ */
@media (max-width: 1024px) {
  .stories-grid { grid-template-columns: repeat(2, 1fr); }
  .themes-grid { grid-template-columns: repeat(2, 1fr); }
  .intro-card { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .main-nav { position: fixed; top: 64px; left: 0; right: 0; flex-direction: column; background: rgba(11,15,26,0.97); border-bottom: 1px solid var(--color-line); padding: 16px 24px; gap: 4px; transform: translateY(-120%); transition: transform 0.3s ease; }
  .main-nav.open { transform: translateY(0); }
  .nav-link { width: 100%; padding: 12px 14px; }
  .nav-link.active::after { display: none; }
  .nav-toggle { display: flex; }
  .nav-actions .search-box { display: none; }
  .timeline::before { left: 8px; }
  .timeline-item { flex-direction: column; gap: 12px; padding-left: 32px; }
  .timeline-item:nth-child(odd) .timeline-content,
  .timeline-item:nth-child(even) .timeline-content { text-align: left; order: 0; }
  .timeline-dot { position: absolute; left: 0; top: 10px; margin: 0; }
}
@media (max-width: 768px) {
  .container { padding-left: 16px; padding-right: 16px; }
  .section { padding: 64px 0; }
  .category-hero { min-height: 60vh; padding: 100px 0 60px; }
  .category-hero h1 { font-size: 26px; line-height: 36px; }
  .hero-sub { font-size: 15px; line-height: 26px; }
  .hero-actions { flex-direction: column; align-items: stretch; gap: 12px; }
  .hero-actions .btn { width: 100%; }
  .stories-grid { grid-template-columns: 1fr; gap: 16px; }
  .themes-grid { grid-template-columns: 1fr; gap: 16px; }
  .intro-card { padding: 24px; }
  .intro-media img { height: 200px; }
  .section-head { margin-bottom: 40px; }
  .contact-form { padding: 24px; }
  .footer-contact { gap: 14px; flex-direction: column; }
  .timeline-item { padding-left: 28px; }
  .timeline-content { padding: 20px; }
}
@media (max-width: 480px) {
  .logo-text { font-size: 16px; }
  .logo-sub { font-size: 13px; }
  .nav-actions .btn-ghost { display: none; }
  .btn-sm { padding: 8px 14px; font-size: 12px; }
  .section-head h2 { font-size: 20px; line-height: 28px; }
  .category-hero h1 { font-size: 24px; }
  .hero-tag { font-size: 12px; padding: 6px 14px; }
  .intro-points { flex-direction: column; }
  .contact-meta-list { gap: 10px; }
}