/* roulang page: index */
/* ============ 设计变量 ============ */
:root {
  --primary: #1a4fa8;
  --primary-rgb: 26, 79, 168;
  --primary-dark: #123b7a;
  --primary-light: #4a82d9;
  --primary-lighter: #eaf1fc;
  --accent: #f5a623;
  --accent-rgb: 245, 166, 35;
  --accent-dark: #d9860a;
  --dark: #101f3c;
  --dark-2: #0a1428;
  --white: #ffffff;
  --bg: #ffffff;
  --bg-alt: #f4f7fc;
  --bg-dark: #101f3c;
  --text: #2c3a58;
  --text-light: #687695;
  --text-white: #f0f4ff;
  --border: #dfe7f2;
  --border-light: #eaf0f8;
  --radius: 18px;
  --radius-sm: 10px;
  --radius-pill: 50px;
  --shadow-xs: 0 2px 6px rgba(16, 31, 60, 0.06);
  --shadow-sm: 0 6px 18px rgba(16, 31, 60, 0.08);
  --shadow: 0 14px 36px rgba(16, 31, 60, 0.12);
  --shadow-lg: 0 28px 60px rgba(16, 31, 60, 0.18);
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --container-width: 1180px;
  --section-space: 90px;
  --section-space-sm: 56px;
  --font-body: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}

/* ============ 基础 Reset ============ */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.7;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

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

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

ul,
ol {
  list-style: none;
}

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

button {
  cursor: pointer;
}

h1,
h2,
h3,
h4,
h5 {
  line-height: 1.3;
  color: var(--dark);
  font-weight: 700;
}

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

/* ============ 通用板块 ============ */
.section {
  padding: var(--section-space) 0;
}

.section-alt {
  background: var(--bg-alt);
}

.section-head {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 56px;
}

.section-head .eyebrow {
  display: inline-block;
  padding: 6px 18px;
  background: var(--primary-lighter);
  color: var(--primary);
  font-size: 13px;
  font-weight: 600;
  border-radius: var(--radius-pill);
  letter-spacing: 0.5px;
  margin-bottom: 18px;
}

.section-head h2 {
  font-size: 38px;
  margin-bottom: 14px;
  letter-spacing: -0.5px;
}

.section-head p {
  font-size: 17px;
  color: var(--text-light);
}

/* ============ 按钮 ============ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 30px;
  border-radius: var(--radius-pill);
  font-size: 15px;
  font-weight: 600;
  line-height: 1.4;
  transition: var(--transition);
  white-space: nowrap;
  border: 2px solid transparent;
}

.btn-primary {
  background: var(--primary);
  color: var(--white);
  box-shadow: 0 4px 16px rgba(var(--primary-rgb), 0.32);
}

.btn-primary:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(var(--primary-rgb), 0.42);
}

.btn-primary:focus-visible {
  outline: 3px solid rgba(var(--primary-rgb), 0.4);
  outline-offset: 2px;
}

.btn-accent {
  background: var(--accent);
  color: var(--dark);
  box-shadow: 0 4px 16px rgba(var(--accent-rgb), 0.32);
}

.btn-accent:hover {
  background: var(--accent-dark);
  color: var(--white);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(var(--accent-rgb), 0.42);
}

.btn-outline {
  background: transparent;
  border-color: rgba(255, 255, 255, 0.65);
  color: var(--white);
}

.btn-outline:hover {
  background: rgba(255, 255, 255, 0.14);
  border-color: var(--white);
  transform: translateY(-2px);
}

.btn-sm {
  padding: 8px 20px;
  font-size: 14px;
}

.btn-lg {
  padding: 15px 38px;
  font-size: 16px;
}

/* ============ 标签 / 徽章 ============ */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 14px;
  border-radius: var(--radius-pill);
  font-size: 12px;
  font-weight: 600;
  background: var(--primary-lighter);
  color: var(--primary);
}

.badge-accent {
  background: rgba(var(--accent-rgb), 0.14);
  color: var(--accent-dark);
}

.tag {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 6px;
  background: var(--bg-alt);
  color: var(--text-light);
  font-size: 12px;
  font-weight: 500;
}

/* ============ 顶部浮动导航 ============ */
.site-header {
  position: fixed;
  top: 16px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 1000;
  width: calc(100% - 32px);
  max-width: var(--container-width);
}

.nav-dock {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-pill);
  padding: 10px 20px 10px 28px;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.site-header.scrolled .nav-dock {
  box-shadow: var(--shadow);
  background: rgba(255, 255, 255, 0.94);
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 17px;
  font-weight: 800;
  color: var(--dark);
  letter-spacing: -0.3px;
  white-space: nowrap;
}

.brand-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 4px rgba(var(--accent-rgb), 0.2);
  flex-shrink: 0;
}

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

.nav-link {
  padding: 8px 16px;
  border-radius: var(--radius-pill);
  font-size: 14px;
  font-weight: 500;
  color: var(--text);
  transition: var(--transition);
}

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

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

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

.nav-toggle {
  display: none;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--bg-alt);
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}

.nav-toggle:hover {
  background: var(--primary-lighter);
}

.nav-toggle span {
  position: relative;
  display: block;
  width: 18px;
  height: 2px;
  background: var(--dark);
  transition: var(--transition);
}

.nav-toggle span::before,
.nav-toggle span::after {
  content: "";
  position: absolute;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--dark);
  transition: var(--transition);
}

.nav-toggle span::before {
  top: -6px;
}

.nav-toggle span::after {
  top: 6px;
}

/* 移动菜单 */
.nav-mobile {
  position: fixed;
  top: 84px;
  left: 16px;
  right: 16px;
  z-index: 999;
  background: var(--white);
  border-radius: 20px;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border-light);
  padding: 16px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-12px);
  transition: var(--transition);
}

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

.nav-mobile a {
  display: block;
  padding: 13px 18px;
  border-radius: 12px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text);
}

.nav-mobile a:hover {
  background: var(--primary-lighter);
  color: var(--primary);
}

.nav-mobile a.active {
  background: var(--primary);
  color: var(--white);
}

/* ============ Hero 首屏 ============ */
.hero {
  position: relative;
  padding: 180px 0 120px;
  background: var(--dark);
  background-image:
    linear-gradient(135deg, rgba(10, 20, 40, 0.88), rgba(16, 31, 60, 0.78)),
    url('/assets/images/backpic/back-1.png');
  background-size: cover;
  background-position: center;
  color: var(--text-white);
  overflow: hidden;
}

.hero::after {
  content: "";
  position: absolute;
  bottom: -1px;
  left: 0;
  width: 100%;
  height: 80px;
  background: var(--bg);
  border-radius: 48% 100% 0 0;
  opacity: 1;
}

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

.hero-content .hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.18);
  color: var(--white);
  padding: 6px 16px;
  border-radius: var(--radius-pill);
  font-size: 13px;
  font-weight: 500;
  margin-bottom: 24px;
  backdrop-filter: blur(6px);
}

.hero-content h1 {
  font-size: 52px;
  color: var(--white);
  letter-spacing: -1px;
  line-height: 1.15;
  margin-bottom: 20px;
}

.hero-content h1 .accent-text {
  color: var(--accent);
}

.hero-content p {
  font-size: 18px;
  color: rgba(255, 255, 255, 0.82);
  max-width: 540px;
  margin-bottom: 34px;
  line-height: 1.7;
}

.hero-btns {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 44px;
}

.hero-stats {
  display: flex;
  gap: 34px;
  flex-wrap: wrap;
}

.hero-stats .stat-item {
  display: flex;
  flex-direction: column;
}

.hero-stats .stat-num {
  font-size: 28px;
  font-weight: 800;
  color: var(--white);
  line-height: 1.2;
}

.hero-stats .stat-label {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.6);
}

.hero-visual {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero-card {
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 24px;
  padding: 30px;
  width: 100%;
  max-width: 400px;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.25);
}

.hero-card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
  padding-bottom: 16px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.14);
}

.hero-card-head span {
  font-size: 14px;
  font-weight: 600;
  color: var(--white);
}

.hero-card-head .badge {
  background: rgba(var(--accent-rgb), 0.25);
  color: #ffd28a;
}

.hero-card-icon {
  width: 48px;
  height: 48px;
  border-radius: 14px;
  background: rgba(var(--primary-rgb), 0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  margin-bottom: 14px;
}

.hero-card-title {
  font-size: 18px;
  color: var(--white);
  margin-bottom: 8px;
}

.hero-card-desc {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.65);
  margin-bottom: 20px;
}

.hero-card-list {
  margin-bottom: 20px;
}

.hero-card-list li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.78);
  padding: 7px 0;
}

.hero-card-list li::before {
  content: "✓";
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: rgba(var(--accent-rgb), 0.2);
  color: #ffd28a;
  font-size: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

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

/* ============ 核心功能 ============ */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 26px;
}

.feature-card {
  background: var(--white);
  border: 1px solid var(--border-light);
  border-radius: var(--radius);
  padding: 34px 28px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  opacity: 0;
  transition: var(--transition);
}

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

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

.feature-icon {
  width: 56px;
  height: 56px;
  border-radius: 16px;
  background: var(--primary-lighter);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  margin-bottom: 22px;
  transition: var(--transition);
}

.feature-card:hover .feature-icon {
  background: var(--primary);
  color: var(--white);
  transform: scale(1.06);
}

.feature-card h3 {
  font-size: 20px;
  margin-bottom: 10px;
}

.feature-card p {
  font-size: 15px;
  color: var(--text-light);
  line-height: 1.65;
}

/* ============ 资讯板块 ============ */
.news-section {
  background: var(--bg-alt);
}

.news-wrapper {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 32px;
  align-items: stretch;
}

.news-feature {
  position: relative;
  border-radius: 24px;
  overflow: hidden;
  min-height: 420px;
  box-shadow: var(--shadow-sm);
  display: flex;
  align-items: flex-end;
}

.news-feature img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 0;
  transition: transform 0.6s ease;
}

.news-feature:hover img {
  transform: scale(1.04);
}

.news-feature-overlay {
  position: relative;
  z-index: 2;
  padding: 28px;
  background: linear-gradient(to top, rgba(10, 20, 40, 0.9), transparent);
  width: 100%;
  color: var(--white);
}

.news-feature-overlay .badge {
  margin-bottom: 10px;
}

.news-feature-overlay h3 {
  color: var(--white);
  font-size: 22px;
  margin-bottom: 6px;
}

.news-feature-overlay p {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.78);
}

.news-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.news-item {
  background: var(--white);
  border: 1px solid var(--border-light);
  border-radius: 16px;
  padding: 22px 24px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  transition: var(--transition);
}

.news-item:hover {
  transform: translateX(4px);
  box-shadow: var(--shadow-sm);
  border-color: var(--primary-light);
}

.news-meta {
  display: flex;
  align-items: center;
  gap: 12px;
}

.news-cat {
  font-size: 12px;
  font-weight: 600;
  color: var(--primary);
  background: var(--primary-lighter);
  padding: 3px 10px;
  border-radius: 6px;
}

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

.news-title {
  font-size: 17px;
  color: var(--dark);
  transition: var(--transition);
}

.news-item:hover .news-title {
  color: var(--primary);
}

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

.news-more {
  font-size: 13px;
  font-weight: 600;
  color: var(--primary);
  margin-top: 4px;
}

.news-empty {
  background: var(--white);
  border: 1px dashed var(--border);
  border-radius: 16px;
  padding: 48px 24px;
  text-align: center;
  color: var(--text-light);
  font-size: 15px;
}

/* ============ 分类入口 ============ */
.categories-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 30px;
}

.category-card {
  position: relative;
  border-radius: 24px;
  overflow: hidden;
  min-height: 320px;
  display: flex;
  align-items: flex-end;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.category-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
}

.category-card img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 0;
  transition: transform 0.6s ease;
}

.category-card:hover img {
  transform: scale(1.06);
}

.category-overlay {
  position: relative;
  z-index: 2;
  width: 100%;
  padding: 28px;
  background: linear-gradient(to top, rgba(10, 20, 40, 0.92), rgba(10, 20, 40, 0.15), transparent);
  color: var(--white);
}

.category-overlay h3 {
  color: var(--white);
  font-size: 24px;
  margin-bottom: 8px;
}

.category-overlay p {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.78);
  margin-bottom: 16px;
}

.category-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 600;
  color: var(--accent);
}

.category-link:hover {
  color: var(--white);
  gap: 12px;
}

/* ============ 数据统计 ============ */
.stats-section {
  background: var(--bg-dark);
  background-image:
    linear-gradient(135deg, rgba(16, 31, 60, 0.92), rgba(10, 20, 40, 0.85)),
    url('/assets/images/backpic/back-2.png');
  background-size: cover;
  background-position: center;
  padding: 80px 0;
  color: var(--white);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 40px;
}

.stat-block {
  text-align: center;
  padding: 20px;
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(8px);
  transition: var(--transition);
}

.stat-block:hover {
  background: rgba(255, 255, 255, 0.1);
  transform: translateY(-4px);
}

.stat-block .num {
  font-size: 44px;
  font-weight: 800;
  color: var(--accent);
  line-height: 1.2;
  margin-bottom: 6px;
}

.stat-block .label {
  font-size: 15px;
  color: rgba(255, 255, 255, 0.7);
}

/* ============ 登录流程 ============ */
.process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 26px;
  position: relative;
}

.process-step {
  text-align: center;
  padding: 30px 22px;
  background: var(--white);
  border: 1px solid var(--border-light);
  border-radius: var(--radius);
  transition: var(--transition);
  position: relative;
}

.process-step:hover {
  box-shadow: var(--shadow-sm);
  transform: translateY(-4px);
}

.process-step .step-num {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--primary-lighter);
  color: var(--primary);
  font-weight: 700;
  font-size: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 18px;
  transition: var(--transition);
}

.process-step:hover .step-num {
  background: var(--primary);
  color: var(--white);
}

.process-step h3 {
  font-size: 17px;
  margin-bottom: 8px;
}

.process-step p {
  font-size: 14px;
  color: var(--text-light);
  line-height: 1.6;
}

/* ============ FAQ ============ */
.faq-wrapper {
  max-width: 760px;
  margin: 0 auto;
}

.faq-item {
  background: var(--white);
  border: 1px solid var(--border-light);
  border-radius: 16px;
  margin-bottom: 14px;
  overflow: hidden;
  transition: var(--transition);
}

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

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

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

.faq-icon {
  position: relative;
  width: 22px;
  height: 22px;
  flex-shrink: 0;
}

.faq-icon::before,
.faq-icon::after {
  content: "";
  position: absolute;
  background: var(--primary);
  border-radius: 2px;
  transition: var(--transition);
}

.faq-icon::before {
  width: 100%;
  height: 2px;
  top: 50%;
  transform: translateY(-50%);
}

.faq-icon::after {
  width: 2px;
  height: 100%;
  left: 50%;
  transform: translateX(-50%);
}

.faq-item.open .faq-icon::after {
  transform: translateX(-50%) scaleY(0);
}

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

.faq-answer-inner {
  padding: 0 24px 22px;
  font-size: 15px;
  color: var(--text-light);
  line-height: 1.7;
  border-top: 1px solid var(--border-light);
  margin: 0 24px;
  padding-left: 0;
  padding-right: 0;
  padding-top: 16px;
}

/* ============ CTA 区块 ============ */
.cta-section {
  padding: 90px 0;
  background: var(--bg-alt);
}

.cta-box {
  background: var(--dark);
  background-image:
    linear-gradient(120deg, rgba(26, 79, 168, 0.88), rgba(16, 31, 60, 0.95)),
    url('/assets/images/backpic/back-3.png');
  background-size: cover;
  background-position: center;
  border-radius: 28px;
  padding: 64px 48px;
  text-align: center;
  color: var(--white);
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.cta-box h2 {
  color: var(--white);
  font-size: 36px;
  margin-bottom: 16px;
}

.cta-box p {
  font-size: 17px;
  color: rgba(255, 255, 255, 0.8);
  max-width: 560px;
  margin: 0 auto 32px;
}

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

/* ============ 页脚 ============ */
.site-footer {
  background: var(--dark-2);
  color: rgba(255, 255, 255, 0.7);
  padding: 64px 0 0;
}

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

.footer-brand .brand {
  color: var(--white);
  margin-bottom: 14px;
}

.footer-brand p {
  font-size: 14px;
  line-height: 1.7;
  max-width: 320px;
}

.footer-col h4 {
  color: var(--white);
  font-size: 16px;
  margin-bottom: 18px;
}

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

.footer-col ul li a {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.65);
  transition: var(--transition);
}

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

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 22px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 13px;
}

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

/* ============ 响应式 ============ */
@media (max-width: 1024px) {
  :root {
    --section-space: 70px;
  }

  .hero .container {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .hero-content {
    text-align: center;
  }

  .hero-content p {
    margin-left: auto;
    margin-right: auto;
  }

  .hero-btns,
  .hero-stats {
    justify-content: center;
  }

  .hero-visual {
    max-width: 460px;
    margin: 0 auto;
  }

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

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

@media (max-width: 768px) {
  :root {
    --section-space: 56px;
  }

  .section-head h2 {
    font-size: 30px;
  }

  .nav-links {
    display: none;
  }

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

  .nav-toggle {
    display: flex;
  }

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

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

  .news-feature {
    min-height: 300px;
  }

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

  .category-card {
    min-height: 260px;
  }

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

  .stat-block .num {
    font-size: 34px;
  }

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

  .cta-box {
    padding: 44px 24px;
  }

  .cta-box h2 {
    font-size: 28px;
  }

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

  .footer-brand {
    grid-column: span 2;
  }
}

@media (max-width: 520px) {
  .container {
    padding: 0 18px;
  }

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

  .hero-content h1 {
    font-size: 34px;
  }

  .hero-content p {
    font-size: 16px;
  }

  .hero-stats {
    gap: 22px;
  }

  .hero-stats .stat-num {
    font-size: 22px;
  }

  .hero-card {
    padding: 22px;
  }

  .section-head h2 {
    font-size: 26px;
  }

  .section-head p {
    font-size: 15px;
  }

  .stats-grid {
    grid-template-columns: 1fr 1fr;
    gap: 14px;
  }

  .stat-block {
    padding: 16px 12px;
  }

  .stat-block .num {
    font-size: 30px;
  }

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

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

  .cta-btns {
    flex-direction: column;
    align-items: center;
  }

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

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

  .footer-brand {
    grid-column: span 1;
  }

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

  .news-feature {
    min-height: 260px;
  }

  .news-item {
    padding: 18px;
  }

  .news-title {
    font-size: 16px;
  }

  .category-overlay h3 {
    font-size: 20px;
  }
}

/* roulang page: category1 */
:root {
  --primary: #0b2545;
  --primary-2: #123157;
  --primary-3: #1a4066;
  --accent: #eab308;
  --accent-dark: #cf9f04;
  --accent-soft: #fdf4d7;
  --bg: #f3f6fb;
  --surface: #ffffff;
  --deep: #071a2e;
  --text: #16233a;
  --muted: #5e6b82;
  --border: #e2e8f2;
  --radius-lg: 20px;
  --radius-md: 14px;
  --radius-sm: 10px;
  --shadow: 0 18px 50px rgba(11, 37, 69, .08);
  --shadow-lg: 0 28px 70px rgba(11, 37, 69, .14);
  --shadow-accent: 0 14px 34px rgba(234, 179, 8, .28);
  --container: 1200px;
  --transition: .28s cubic-bezier(.4, 0, .2, 1);
}

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

html {
  scroll-behavior: smooth;
}

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

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

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

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

.container {
  width: min(var(--container), calc(100% - 48px));
  margin: 0 auto;
}

/* ===== 按钮 ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 30px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 15px;
  line-height: 1;
  cursor: pointer;
  text-align: center;
  transition: all var(--transition);
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-3));
  color: #fff;
  box-shadow: 0 10px 26px rgba(11, 37, 69, .24);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 16px 36px rgba(11, 37, 69, .32);
  color: #fff;
}

.btn-accent {
  background: linear-gradient(135deg, var(--accent), #f5c842);
  color: #1d1a08;
  box-shadow: var(--shadow-accent);
}

.btn-accent:hover {
  transform: translateY(-2px);
  color: #1d1a08;
  box-shadow: 0 18px 40px rgba(234, 179, 8, .38);
}

.btn-outline {
  border: 1.5px solid rgba(255, 255, 255, .65);
  color: #fff;
  background: rgba(255, 255, 255, .08);
  backdrop-filter: blur(6px);
}

.btn-outline:hover {
  background: rgba(255, 255, 255, .16);
  border-color: #fff;
  color: #fff;
}

.btn-sm {
  padding: 9px 20px;
  font-size: 13.5px;
}

.btn:focus-visible {
  outline: 3px solid rgba(234, 179, 8, .55);
  outline-offset: 3px;
}

/* ===== 站点浮动导航 ===== */
.site-header {
  position: sticky;
  top: 18px;
  z-index: 100;
  padding: 0 24px;
  pointer-events: none;
}

.nav-dock {
  pointer-events: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  background: rgba(255, 255, 255, .86);
  backdrop-filter: blur(16px);
  border: 1px solid rgba(255, 255, 255, .75);
  border-radius: 999px;
  padding: 12px 24px;
  box-shadow: 0 18px 50px rgba(11, 37, 69, .12);
  max-width: 1160px;
  margin: 0 auto;
  transition: box-shadow var(--transition);
}

.nav-dock:hover {
  box-shadow: 0 22px 60px rgba(11, 37, 69, .16);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 18px;
  font-weight: 800;
  color: var(--primary);
  letter-spacing: .5px;
}

.brand-dot {
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), #f6c84a);
  box-shadow: 0 0 0 4px rgba(234, 179, 8, .2), 0 4px 10px rgba(234, 179, 8, .4);
  flex-shrink: 0;
}

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

.nav-link {
  padding: 9px 20px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 600;
  color: var(--muted);
  transition: all var(--transition);
}

.nav-link:hover {
  color: var(--primary);
  background: rgba(11, 37, 69, .06);
}

.nav-link.active {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 8px 22px rgba(11, 37, 69, .22);
}

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

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--primary);
  color: #fff;
  cursor: pointer;
  position: relative;
  align-items: center;
  justify-content: center;
}

.nav-toggle span,
.nav-toggle span::before,
.nav-toggle span::after {
  content: "";
  position: absolute;
  width: 18px;
  height: 2px;
  background: #fff;
  border-radius: 4px;
  transition: all .3s ease;
}

.nav-toggle span {
  transform: translate(-50%, -50%);
  top: 50%;
  left: 50%;
}

.nav-toggle span::before {
  bottom: 6px;
  left: 0;
}

.nav-toggle span::after {
  top: 6px;
  left: 0;
}

.nav-dock.open .nav-toggle span {
  background: transparent;
}

.nav-dock.open .nav-toggle span::before {
  bottom: 0;
  transform: rotate(45deg);
}

.nav-dock.open .nav-toggle span::after {
  top: 0;
  transform: rotate(-45deg);
}

/* ===== 页面 Hero ===== */
.page-hero {
  position: relative;
  padding: 130px 0 90px;
  background: linear-gradient(120deg, rgba(11, 37, 69, .92), rgba(18, 49, 87, .78)), url('/assets/images/backpic/back-1.png') center / cover no-repeat;
  color: #fff;
  margin-top: -96px;
  border-radius: 0 0 40px 40px;
  overflow: hidden;
}

.page-hero::after {
  content: "";
  position: absolute;
  right: -160px;
  top: -60px;
  width: 460px;
  height: 460px;
  background: radial-gradient(circle, rgba(234, 179, 8, .28), transparent 65%);
  pointer-events: none;
}

.hero-breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: rgba(255, 255, 255, .72);
  margin-bottom: 18px;
}

.hero-breadcrumb a {
  color: rgba(255, 255, 255, .88);
}

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

.hero-breadcrumb i {
  font-size: 11px;
  opacity: .6;
}

.page-hero h1 {
  font-size: clamp(32px, 5vw, 54px);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: 1px;
  margin-bottom: 16px;
}

.page-hero h1 span {
  color: var(--accent);
}

.hero-subtitle {
  font-size: 17px;
  color: rgba(255, 255, 255, .82);
  max-width: 620px;
  line-height: 1.8;
  margin-bottom: 32px;
}

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

.hero-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 18px;
  border-radius: 999px;
  background: rgba(255, 255, 255, .12);
  border: 1px solid rgba(255, 255, 255, .18);
  backdrop-filter: blur(8px);
  font-size: 13.5px;
  color: rgba(255, 255, 255, .92);
}

.hero-pill i {
  color: var(--accent);
}

/* ===== 内容双栏 ===== */
.content-section {
  padding: 70px 0;
}

.content-grid {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 44px;
  align-items: start;
}

.section-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 32px;
}

.section-header h2 {
  font-size: 28px;
  font-weight: 800;
  color: var(--primary);
  line-height: 1.3;
}

.section-header h2 i {
  color: var(--accent);
  margin-right: 6px;
}

.section-header p {
  color: var(--muted);
  font-size: 14.5px;
  max-width: 400px;
}

/* 分类标签条 */
.tag-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 32px;
}

.tag-btn {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 9px 20px;
  border-radius: 999px;
  background: #fff;
  border: 1px solid var(--border);
  font-size: 14px;
  font-weight: 600;
  color: var(--muted);
  cursor: pointer;
  transition: all var(--transition);
}

.tag-btn:hover {
  border-color: var(--primary);
  color: var(--primary);
  transform: translateY(-2px);
}

.tag-btn.active {
  background: var(--primary);
  border-color: var(--primary);
  color: #fff;
  box-shadow: 0 8px 20px rgba(11, 37, 69, .2);
}

/* 资讯卡片网格 */
.post-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.post-card {
  background: var(--surface);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  transition: transform var(--transition), box-shadow var(--transition);
}

.post-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}

.post-card .post-cover {
  position: relative;
  height: 190px;
  overflow: hidden;
}

.post-card .post-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .5s ease;
}

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

.post-card .post-cover::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 55%, rgba(11, 37, 69, .38));
  pointer-events: none;
}

.post-badge {
  position: absolute;
  top: 14px;
  left: 14px;
  z-index: 2;
  padding: 5px 14px;
  border-radius: 999px;
  background: rgba(255, 255, 255, .9);
  backdrop-filter: blur(6px);
  color: var(--primary);
  font-size: 12.5px;
  font-weight: 700;
}

.post-time {
  position: absolute;
  bottom: 12px;
  right: 14px;
  z-index: 2;
  font-size: 12.5px;
  color: rgba(255, 255, 255, .92);
  display: flex;
  align-items: center;
  gap: 6px;
  background: rgba(11, 37, 69, .4);
  padding: 4px 12px;
  border-radius: 999px;
  backdrop-filter: blur(4px);
}

.post-body {
  padding: 22px 24px 24px;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.post-body h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--primary);
  line-height: 1.5;
  margin-bottom: 10px;
  transition: color var(--transition);
}

.post-body h3 a:hover {
  color: var(--accent-dark);
}

.post-body p {
  font-size: 14px;
  color: var(--muted);
  line-height: 1.75;
  margin-bottom: 16px;
  flex: 1;
}

.post-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid var(--border);
  padding-top: 16px;
  font-size: 13px;
  color: var(--muted);
}

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

.post-meta .meta-left i {
  color: var(--accent);
}

.post-card .read-more {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-weight: 600;
  color: var(--primary);
  font-size: 13.5px;
}

.post-card .read-more i {
  transition: transform var(--transition);
}

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

/* 头条大卡 */
.feature-card {
  background: var(--surface);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  margin-bottom: 24px;
  transition: transform var(--transition), box-shadow var(--transition);
}

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

.feature-card .feature-cover {
  min-height: 260px;
  position: relative;
  overflow: hidden;
}

.feature-card .feature-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .5s ease;
}

.feature-card:hover .feature-cover img {
  transform: scale(1.04);
}

.feature-card .feature-cover::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, transparent 60%, rgba(11, 37, 69, .3));
}

.feature-body {
  padding: 34px 32px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.feature-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12.5px;
  font-weight: 700;
  padding: 6px 16px;
  background: var(--accent-soft);
  color: #9a7905;
  border-radius: 999px;
  margin-bottom: 16px;
  width: fit-content;
}

.feature-body h3 {
  font-size: 24px;
  font-weight: 800;
  color: var(--primary);
  line-height: 1.4;
  margin-bottom: 14px;
}

.feature-body p {
  color: var(--muted);
  font-size: 15px;
  margin-bottom: 22px;
}

/* 侧边栏 */
.sidebar {
  display: flex;
  flex-direction: column;
  gap: 24px;
  position: sticky;
  top: 110px;
}

.side-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 26px;
  box-shadow: var(--shadow);
}

.side-card .side-title {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 17px;
  font-weight: 800;
  color: var(--primary);
  margin-bottom: 20px;
}

.side-card .side-title i {
  color: var(--accent);
}

.rank-list {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.rank-item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 12px 10px;
  border-radius: var(--radius-sm);
  transition: background var(--transition);
}

.rank-item:hover {
  background: #f8fafd;
}

.rank-num {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  font-size: 14px;
  font-weight: 800;
  background: #eef2f8;
  color: var(--muted);
  flex-shrink: 0;
}

.rank-item:nth-child(1) .rank-num {
  background: linear-gradient(135deg, var(--accent), #f5c842);
  color: #1d1a08;
}

.rank-item:nth-child(2) .rank-num {
  background: #e8edf5;
  color: var(--primary);
}

.rank-item .rank-info {
  flex: 1;
  min-width: 0;
}

.rank-item .rank-info h4 {
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  margin-bottom: 2px;
}

.rank-item .rank-info span {
  font-size: 12.5px;
  color: var(--muted);
}

.rank-item .rank-view {
  font-size: 13px;
  color: var(--muted);
  display: flex;
  align-items: center;
  gap: 5px;
}

/* 标签云 */
.cloud-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
}

.cloud-tag {
  padding: 7px 16px;
  border-radius: 999px;
  background: #f2f5fa;
  font-size: 13px;
  font-weight: 500;
  color: var(--muted);
  border: 1px solid transparent;
  transition: all var(--transition);
}

.cloud-tag:hover {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
  transform: translateY(-2px);
}

/* 登录便捷卡 */
.login-tip-card {
  background: linear-gradient(135deg, var(--primary), var(--primary-3));
  border-radius: var(--radius-lg);
  padding: 30px 26px;
  color: #fff;
  position: relative;
  overflow: hidden;
}

.login-tip-card::after {
  content: "";
  position: absolute;
  right: -60px;
  top: -60px;
  width: 180px;
  height: 180px;
  background: radial-gradient(circle, rgba(234, 179, 8, .4), transparent 70%);
}

.login-tip-card h3 {
  font-size: 20px;
  font-weight: 800;
  margin-bottom: 10px;
}

.login-tip-card p {
  font-size: 14px;
  color: rgba(255, 255, 255, .8);
  margin-bottom: 20px;
  line-height: 1.7;
}

.login-tip-card .btn {
  position: relative;
  z-index: 2;
  display: flex;
  width: 100%;
}

/* ===== 数据统计深色区 ===== */
.stats-section {
  background: linear-gradient(135deg, var(--deep) 0%, #0c2743 100%);
  padding: 70px 0;
  position: relative;
  overflow: hidden;
}

.stats-section::before {
  content: "";
  position: absolute;
  left: -120px;
  bottom: -100px;
  width: 340px;
  height: 340px;
  background: radial-gradient(circle, rgba(234, 179, 8, .18), transparent 70%);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  position: relative;
  z-index: 2;
}

.stat-card {
  text-align: center;
  padding: 36px 20px;
  background: rgba(255, 255, 255, .04);
  border: 1px solid rgba(255, 255, 255, .08);
  border-radius: var(--radius-lg);
  transition: all var(--transition);
}

.stat-card:hover {
  background: rgba(255, 255, 255, .08);
  transform: translateY(-6px);
}

.stat-card i {
  font-size: 28px;
  color: var(--accent);
  margin-bottom: 16px;
  display: block;
}

.stat-num {
  font-size: 42px;
  font-weight: 800;
  color: #fff;
  line-height: 1.2;
}

.stat-num em {
  font-style: normal;
  font-size: 18px;
  color: var(--accent);
  margin-left: 2px;
}

.stat-label {
  font-size: 14px;
  color: rgba(255, 255, 255, .7);
  margin-top: 6px;
}

/* ===== CTA 板块 ===== */
.cta-section {
  padding: 0;
  position: relative;
}

.cta-box {
  position: relative;
  border-radius: 32px;
  overflow: hidden;
  background: linear-gradient(105deg, rgba(11, 37, 69, .95), rgba(26, 64, 102, .85)), url('/assets/images/backpic/back-3.png') center / cover no-repeat;
  color: #fff;
  text-align: center;
  padding: 76px 44px;
  margin: 70px auto;
  max-width: 1100px;
  box-shadow: var(--shadow-lg);
}

.cta-box::before {
  content: "";
  position: absolute;
  left: 50%;
  top: -80px;
  transform: translateX(-50%);
  width: 420px;
  height: 220px;
  background: radial-gradient(ellipse, rgba(234, 179, 8, .24), transparent 70%);
  pointer-events: none;
}

.cta-box h2 {
  font-size: clamp(26px, 4vw, 38px);
  font-weight: 800;
  margin-bottom: 14px;
  letter-spacing: 1px;
  position: relative;
  z-index: 2;
}

.cta-box h2 span {
  color: var(--accent);
}

.cta-box p {
  font-size: 16px;
  color: rgba(255, 255, 255, .8);
  max-width: 540px;
  margin: 0 auto 32px;
  position: relative;
  z-index: 2;
}

.cta-btns {
  display: flex;
  justify-content: center;
  gap: 14px;
  flex-wrap: wrap;
  position: relative;
  z-index: 2;
}

/* ===== FAQ ===== */
.faq-section {
  padding: 20px 0 70px;
}

.faq-section .section-header {
  justify-content: center;
  text-align: center;
  flex-direction: column;
  align-items: center;
}

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

.faq-item {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  margin-bottom: 14px;
  box-shadow: 0 6px 20px rgba(11, 37, 69, .04);
  transition: box-shadow var(--transition);
  overflow: hidden;
}

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

.faq-item summary {
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 24px;
  cursor: pointer;
  font-size: 16px;
  font-weight: 700;
  color: var(--primary);
  transition: all var(--transition);
}

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

.faq-item summary i {
  font-size: 15px;
  color: var(--accent);
  transition: transform .35s ease;
  flex-shrink: 0;
}

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

.faq-item .faq-body {
  padding: 0 24px 22px;
  color: var(--muted);
  font-size: 14.5px;
  line-height: 1.85;
}

/* ===== 页脚 ===== */
.site-footer {
  background: var(--deep);
  color: rgba(255, 255, 255, .7);
  padding: 60px 0 0;
  margin-top: 20px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 44px;
  border-bottom: 1px solid rgba(255, 255, 255, .08);
}

.footer-brand .brand {
  color: #fff;
  font-size: 20px;
  margin-bottom: 14px;
}

.footer-brand p {
  font-size: 14px;
  line-height: 1.8;
  color: rgba(255, 255, 255, .6);
  max-width: 380px;
}

.footer-col h4 {
  color: #fff;
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 16px;
}

.footer-col ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-col ul a {
  font-size: 14px;
  color: rgba(255, 255, 255, .6);
  transition: all var(--transition);
}

.footer-col ul a:hover {
  color: var(--accent);
  padding-left: 6px;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
  padding: 22px 0;
  font-size: 13.5px;
  color: rgba(255, 255, 255, .4);
}

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
  .nav-dock {
    gap: 12px;
    padding: 10px 18px;
  }

  .nav-link {
    padding: 8px 14px;
    font-size: 14px;
  }

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

  .sidebar {
    position: static;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
  }

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

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

@media (max-width: 768px) {
  .site-header {
    top: 12px;
    padding: 0 16px;
  }

  .nav-dock {
    border-radius: 24px;
    padding: 12px 16px;
  }

  .nav-links {
    position: absolute;
    top: calc(100% + 12px);
    left: 0;
    right: 0;
    flex-direction: column;
    background: rgba(255, 255, 255, .98);
    backdrop-filter: blur(20px);
    border-radius: 20px;
    box-shadow: var(--shadow-lg);
    padding: 16px;
    gap: 6px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all .3s ease;
    border: 1px solid var(--border);
  }

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

  .nav-link {
    width: 100%;
    text-align: center;
    padding: 12px 16px;
  }

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

  .nav-toggle {
    display: flex;
  }

  .page-hero {
    padding: 110px 0 70px;
    border-radius: 0 0 24px 24px;
  }

  .content-section {
    padding: 48px 0;
  }

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

  .feature-card .feature-cover {
    min-height: 200px;
  }

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

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

  .cta-box {
    padding: 50px 24px;
    margin: 48px auto;
    border-radius: 24px;
  }

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

  .faq-item summary {
    font-size: 15px;
    padding: 18px;
  }

  .faq-item .faq-body {
    padding: 0 18px 18px;
  }
}

@media (max-width: 520px) {
  .brand {
    font-size: 15.5px;
    gap: 8px;
  }

  .brand-dot {
    width: 9px;
    height: 9px;
  }

  .nav-dock {
    padding: 10px 14px;
  }

  .hero-pills {
    gap: 8px;
  }

  .hero-pill {
    font-size: 12px;
    padding: 7px 14px;
  }

  .section-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }

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

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

  .stat-card {
    padding: 24px 14px;
  }

  .stat-num {
    font-size: 30px;
  }

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

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

  .post-body {
    padding: 18px;
  }
}

/* roulang page: article */
:root {
  --primary: #2563eb;
  --primary-dark: #1e40af;
  --primary-light: #dbeafe;
  --accent: #f59e0b;
  --bg: #f6f8fc;
  --surface: #ffffff;
  --text: #0f172a;
  --text-weak: #64748b;
  --border: #e2e8f0;
  --radius: 16px;
  --radius-sm: 10px;
  --shadow: 0 10px 30px rgba(15, 23, 42, 0.08);
  --shadow-hover: 0 18px 40px rgba(15, 23, 42, 0.14);
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; transition: color .2s ease; }
button, input, select, textarea { font-family: inherit; font-size: inherit; border: none; outline: none; }
ul, ol { list-style: none; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

/* Header */
.site-header {
  position: fixed;
  top: 16px;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 0 24px;
}
.nav-dock {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  background: rgba(255, 255, 255, 0.86);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.6);
  border-radius: 60px;
  padding: 12px 20px 12px 24px;
  box-shadow: 0 8px 32px rgba(15, 23, 42, 0.08);
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 18px;
  letter-spacing: -0.02em;
  color: var(--text);
  white-space: nowrap;
}
.brand-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), #7c3aed);
  box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.15);
  flex-shrink: 0;
}
.nav-links { display: flex; align-items: center; gap: 6px; }
.nav-link {
  padding: 8px 16px;
  border-radius: 30px;
  font-weight: 600;
  font-size: 15px;
  color: var(--text-weak);
  transition: all 0.25s ease;
}
.nav-link:hover { color: var(--primary); background: rgba(37, 99, 235, 0.08); }
.nav-link.active { color: var(--primary); background: rgba(37, 99, 235, 0.1); }
.nav-actions { display: flex; align-items: center; gap: 12px; }
.nav-toggle {
  display: none;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--primary-light);
  cursor: pointer;
  align-items: center;
  justify-content: center;
  position: relative;
}
.nav-toggle span {
  position: relative;
  width: 18px;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
  transition: background 0.2s;
}
.nav-toggle span::before,
.nav-toggle span::after {
  content: '';
  position: absolute;
  left: 0;
  width: 18px;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
  transition: transform 0.3s;
}
.nav-toggle span::before { top: -6px; }
.nav-toggle span::after { top: 6px; }
.site-header.menu-open .nav-toggle span { background: transparent; }
.site-header.menu-open .nav-toggle span::before { transform: translateY(6px) rotate(45deg); }
.site-header.menu-open .nav-toggle span::after { transform: translateY(-6px) rotate(-45deg); }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: 40px;
  font-weight: 700;
  font-size: 15px;
  line-height: 1;
  cursor: pointer;
  transition: all 0.3s ease;
  white-space: nowrap;
}
.btn-primary {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 8px 20px rgba(37, 99, 235, 0.25);
}
.btn-primary:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 12px 28px rgba(37, 99, 235, 0.32);
}
.btn-outline {
  border: 2px solid var(--border);
  background: transparent;
  color: var(--text);
}
.btn-outline:hover {
  border-color: var(--primary);
  color: var(--primary);
  background: rgba(37, 99, 235, 0.04);
}
.btn-outline-light {
  border: 2px solid rgba(255, 255, 255, 0.6);
  color: #fff;
  background: rgba(255, 255, 255, 0.08);
}
.btn-outline-light:hover {
  background: rgba(255, 255, 255, 0.16);
  border-color: #fff;
  transform: translateY(-2px);
}
.btn-sm { padding: 8px 16px; font-size: 14px; }

/* Banner */
.page-banner {
  position: relative;
  padding: 160px 0 72px;
  background-size: cover;
  background-position: center;
  display: flex;
  align-items: center;
  overflow: hidden;
}
.page-banner::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(15, 23, 42, 0.82) 0%, rgba(30, 64, 175, 0.62) 60%, rgba(37, 99, 235, 0.45) 100%);
}
.banner-content { position: relative; z-index: 2; }
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.8);
  margin-bottom: 16px;
  flex-wrap: wrap;
}
.breadcrumb a { color: rgba(255, 255, 255, 0.9); }
.breadcrumb a:hover { color: #fff; }
.breadcrumb .sep { opacity: 0.5; }
.banner-overline {
  display: inline-block;
  padding: 6px 16px;
  background: rgba(255, 255, 255, 0.15);
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: 30px;
  color: #fff;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.04em;
  margin-bottom: 14px;
}
.banner-title {
  font-size: 40px;
  font-weight: 800;
  color: #fff;
  line-height: 1.25;
  letter-spacing: -0.02em;
  max-width: 720px;
}
.banner-sub {
  color: rgba(255, 255, 255, 0.85);
  font-size: 16px;
  margin-top: 12px;
  max-width: 640px;
}

/* Article layout */
.article-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 340px;
  gap: 40px;
  padding-top: 48px;
  padding-bottom: 64px;
  align-items: start;
}
.article-main { min-width: 0; }
.article-card {
  background: var(--surface);
  border-radius: 24px;
  border: 1px solid rgba(226, 232, 240, 0.7);
  box-shadow: var(--shadow);
  padding: 40px 44px;
}
.article-header { margin-bottom: 28px; }
.article-header .overdeco {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 14px;
}
.article-header .overdeco .kicker {
  font-size: 13px;
  font-weight: 700;
  color: var(--primary);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  white-space: nowrap;
}
.article-header .overdeco .line {
  flex: 1;
  height: 1px;
  background: linear-gradient(to right, var(--primary), transparent);
}
.article-header h1 {
  font-size: 34px;
  line-height: 1.3;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
  color: var(--text);
}
.article-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
  color: var(--text-weak);
  font-size: 14px;
}
.category-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--primary-light);
  color: var(--primary);
  font-weight: 700;
  font-size: 13px;
  padding: 5px 14px;
  border-radius: 30px;
}
.meta-sep { width: 4px; height: 4px; border-radius: 50%; background: #cbd5e1; }

/* Article content */
.article-content {
  font-size: 17px;
  line-height: 1.9;
  color: #1e293b;
}
.article-content h2 {
  font-size: 24px;
  font-weight: 800;
  margin: 36px 0 16px;
  line-height: 1.4;
  letter-spacing: -0.01em;
  color: var(--text);
}
.article-content h3 {
  font-size: 20px;
  font-weight: 700;
  margin: 28px 0 12px;
  color: var(--text);
}
.article-content p { margin: 0 0 20px; }
.article-content ul,
.article-content ol { margin: 0 0 20px; padding-left: 22px; }
.article-content ul { list-style: disc; }
.article-content ol { list-style: decimal; }
.article-content li { margin-bottom: 8px; }
.article-content blockquote {
  border-left: 4px solid var(--primary);
  background: #f1f5ff;
  padding: 16px 20px;
  border-radius: 0 12px 12px 0;
  margin: 0 0 20px;
  color: #334155;
}
.article-content img {
  border-radius: 16px;
  margin: 24px 0;
  box-shadow: var(--shadow);
}
.article-content a {
  color: var(--primary);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* Tags */
.article-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  padding-top: 24px;
  margin-top: 28px;
  border-top: 1px dashed var(--border);
}
.article-tags .tag {
  display: inline-flex;
  align-items: center;
  padding: 6px 14px;
  background: #f1f5f9;
  border: 1px solid var(--border);
  border-radius: 30px;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-weak);
  transition: all 0.2s;
}
.article-tags .tag:hover {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}

/* Article footer nav */
.article-footer-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 32px;
  padding-top: 28px;
  border-top: 1px solid var(--border);
}

/* Sidebar */
.article-sidebar { display: flex; flex-direction: column; gap: 24px; }
.side-card {
  background: var(--surface);
  border-radius: 20px;
  border: 1px solid rgba(226, 232, 240, 0.7);
  box-shadow: var(--shadow);
  padding: 28px;
}
.side-card h3 {
  font-size: 16px;
  font-weight: 800;
  margin-bottom: 18px;
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--text);
}
.side-card h3::after {
  content: '';
  flex: 1;
  height: 1px;
  background: linear-gradient(to right, var(--border), transparent);
}
.cat-row {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px 14px;
  border-radius: 14px;
  border: 1px solid transparent;
  transition: all 0.25s;
  margin-bottom: 10px;
  background: #f8fafc;
}
.cat-row:last-child { margin-bottom: 0; }
.cat-row:hover {
  background: #fff;
  border-color: var(--primary);
  transform: translateX(4px);
  box-shadow: 0 6px 16px rgba(37, 99, 235, 0.1);
}
.cat-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  background: var(--primary-light);
  flex-shrink: 0;
}
.cat-text strong { display: block; font-size: 15px; font-weight: 700; color: var(--text); }
.cat-text small { font-size: 13px; color: var(--text-weak); }
.cat-arrow { margin-left: auto; color: #94a3b8; transition: all 0.25s; }
.cat-row:hover .cat-arrow { color: var(--primary); transform: translateX(2px); }
.side-guide {
  background-size: cover;
  background-position: center;
  position: relative;
  overflow: hidden;
  border: none;
  padding: 0;
}
.guide-inner {
  background: linear-gradient(135deg, rgba(15, 23, 42, 0.9), rgba(30, 64, 175, 0.7));
  padding: 28px;
  color: #fff;
}
.guide-inner h3 { color: #fff; }
.guide-inner h3::after { background: rgba(255, 255, 255, 0.2); }
.guide-inner p {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.75);
  margin-bottom: 18px;
  line-height: 1.7;
}
.guide-inner .btn {
  background: #fff;
  color: var(--primary);
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.16);
}
.guide-inner .btn:hover {
  background: var(--primary-light);
  color: var(--primary);
  transform: translateY(-2px);
}
.tip-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 14px;
  color: #475569;
  padding: 10px 0;
  border-bottom: 1px dashed var(--border);
  line-height: 1.6;
}
.tip-list li:last-child { border-bottom: none; }
.tip-list li::before {
  content: '✓';
  display: inline-flex;
  flex: 0 0 22px;
  height: 22px;
  align-items: center;
  justify-content: center;
  background: var(--primary-light);
  color: var(--primary);
  font-size: 12px;
  font-weight: 800;
  border-radius: 50%;
  margin-top: 3px;
}

/* Empty state */
.empty-state {
  text-align: center;
  padding: 60px 24px;
}
.empty-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: #fee2e2;
  color: #ef4444;
  font-size: 28px;
  font-weight: 800;
  margin-bottom: 18px;
}
.empty-state h2 { font-size: 26px; font-weight: 800; margin-bottom: 10px; color: var(--text); }
.empty-state p { color: var(--text-weak); margin-bottom: 24px; }

/* CTA */
.cta-section { padding: 0 24px 80px; }
.cta-card {
  position: relative;
  border-radius: 28px;
  background: linear-gradient(135deg, #1e3a8a, #2563eb);
  padding: 56px 48px;
  overflow: hidden;
  text-align: center;
  box-shadow: 0 24px 48px rgba(37, 99, 235, 0.25);
}
.cta-card::before {
  content: '';
  position: absolute;
  width: 320px;
  height: 320px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.08);
  top: -120px;
  right: -60px;
}
.cta-card::after {
  content: '';
  position: absolute;
  width: 200px;
  height: 200px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.06);
  bottom: -80px;
  left: -40px;
}
.cta-card h2 {
  position: relative;
  z-index: 1;
  color: #fff;
  font-size: 32px;
  font-weight: 800;
  margin-bottom: 14px;
}
.cta-card p {
  position: relative;
  z-index: 1;
  color: rgba(255, 255, 255, 0.8);
  max-width: 560px;
  margin: 0 auto 28px;
  font-size: 16px;
}
.cta-actions {
  position: relative;
  z-index: 1;
  display: flex;
  justify-content: center;
  gap: 14px;
  flex-wrap: wrap;
}
.cta-card .btn-primary {
  background: #fff;
  color: var(--primary);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.18);
}
.cta-card .btn-primary:hover {
  background: var(--primary-light);
  color: var(--primary);
  transform: translateY(-2px);
}

/* Footer */
.site-footer {
  background: #0f172a;
  color: #94a3b8;
  padding: 64px 24px 28px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 48px;
  max-width: 1200px;
  margin: 0 auto;
}
.footer-brand .brand { color: #fff; margin-bottom: 16px; }
.footer-brand p { font-size: 14px; line-height: 1.8; }
.footer-col h4 {
  color: #fff;
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 18px;
}
.footer-col li { margin-bottom: 12px; }
.footer-col a {
  font-size: 14px;
  color: #94a3b8;
  transition: color 0.2s;
}
.footer-col a:hover { color: #fff; }
.footer-bottom {
  max-width: 1200px;
  margin: 48px auto 0;
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  justify-content: space-between;
  gap: 12px;
  font-size: 13px;
  color: #64748b;
  flex-wrap: wrap;
}

/* Responsive */
@media (max-width: 1024px) {
  .article-layout { grid-template-columns: 1fr; }
  .article-sidebar { display: grid; grid-template-columns: 1fr 1fr; }
  .article-card { padding: 32px; }
  .banner-title { font-size: 34px; }
}
@media (max-width: 768px) {
  .nav-links {
    position: absolute;
    top: calc(100% + 8px);
    left: 16px;
    right: 16px;
    background: rgba(255, 255, 255, 0.96);
    backdrop-filter: blur(20px);
    border-radius: 20px;
    box-shadow: var(--shadow-hover);
    padding: 12px;
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
    display: none;
    z-index: 120;
  }
  .nav-links.open { display: flex; }
  .nav-link { padding: 12px 16px; border-radius: 12px; }
  .nav-toggle { display: inline-flex; }
  .page-banner { padding: 130px 0 56px; }
  .banner-title { font-size: 30px; }
  .article-layout { padding-top: 32px; }
  .article-card { padding: 24px; border-radius: 18px; }
  .article-header h1 { font-size: 26px; }
  .article-content { font-size: 16px; }
  .article-sidebar { grid-template-columns: 1fr; }
  .cta-card { padding: 40px 24px; }
  .cta-card h2 { font-size: 26px; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
}
@media (max-width: 520px) {
  .container { padding: 0 16px; }
  .site-header { padding: 0 12px; }
  .nav-dock { padding: 10px 14px; }
  .brand { font-size: 16px; }
  .brand-dot { width: 8px; height: 8px; }
  .nav-actions .btn { display: none; }
  .page-banner { padding: 120px 0 48px; }
  .banner-title { font-size: 24px; }
  .banner-sub { font-size: 14px; }
  .article-card { padding: 20px 16px; }
  .article-header h1 { font-size: 22px; }
  .article-meta { gap: 8px; font-size: 13px; }
  .cta-card { padding: 32px 20px; }
  .cta-card h2 { font-size: 22px; }
  .cta-actions .btn { width: 100%; }
  .footer-bottom { flex-direction: column; text-align: center; }
}

/* roulang page: category2 */
:root{
  --primary:#0b6bff;
  --primary-dark:#0a53d4;
  --accent:#00c2a2;
  --accent-dark:#00a184;
  --accent-soft:#e0faf4;
  --dark:#081626;
  --dark-2:#10243c;
  --bg:#f2f6fb;
  --surface:#ffffff;
  --text:#16253c;
  --muted:#5e6e86;
  --border:#dce5f0;
  --radius:14px;
  --radius-lg:20px;
  --shadow-sm:0 4px 16px rgba(7,22,38,.06);
  --shadow-md:0 14px 34px rgba(7,22,38,.10);
  --shadow-glow:0 10px 30px rgba(0,194,162,.28);
  --font:"PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  --header-h:74px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:var(--font);background:var(--bg);color:var(--text);line-height:1.65;-webkit-font-smoothing:antialiased}
body.no-scroll{overflow:hidden}
a{text-decoration:none;color:inherit}
img{max-width:100%;display:block}
ul,ol{list-style:none}
button,input{font-family:inherit;font-size:inherit}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}

.site-header{
  position:fixed;
  top:16px;
  left:0;
  right:0;
  z-index:1000;
  padding:0 18px;
}
.nav-dock{
  background:rgba(255,255,255,.94);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border:1px solid rgba(220,229,240,.75);
  box-shadow:var(--shadow-sm);
  border-radius:60px;
  height:60px;
  max-width:1080px;
  margin:0 auto;
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:0 8px 0 22px;
  transition:box-shadow .3s ease;
}
.nav-dock:hover{box-shadow:var(--shadow-md)}
.brand{
  display:inline-flex;
  align-items:center;
  gap:9px;
  font-weight:800;
  font-size:17px;
  color:var(--dark);
  letter-spacing:.2px;
  white-space:nowrap;
}
.brand-dot{
  width:28px;
  height:28px;
  border-radius:9px;
  background:linear-gradient(135deg,var(--primary),var(--accent));
  box-shadow:0 4px 12px rgba(11,107,255,.3);
  position:relative;
  flex:none;
}
.brand-dot::after{
  content:"";
  position:absolute;
  inset:7px;
  border-radius:4px;
  background:#fff;
  opacity:.9;
}
.nav-links{
  display:flex;
  align-items:center;
  gap:4px;
  background:rgba(242,246,251,.7);
  border-radius:40px;
  padding:4px;
  margin:0 auto;
}
.nav-link{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  padding:8px 18px;
  border-radius:32px;
  font-size:14px;
  font-weight:600;
  color:var(--muted);
  transition:all .25s ease;
  white-space:nowrap;
}
.nav-link:hover{
  color:var(--primary);
  background:rgba(255,255,255,.9);
}
.nav-link.active{
  background:var(--dark);
  color:#fff;
  box-shadow:0 4px 12px rgba(8,22,38,.22);
}
.nav-actions{
  display:flex;
  align-items:center;
  gap:10px;
}
.nav-toggle{
  display:none;
  width:40px;
  height:40px;
  border:none;
  background:var(--dark);
  border-radius:50%;
  cursor:pointer;
  align-items:center;
  justify-content:center;
  position:relative;
}
.nav-toggle span,
.nav-toggle span::before,
.nav-toggle span::after{
  content:"";
  display:block;
  width:18px;
  height:2px;
  background:#fff;
  border-radius:2px;
  transition:transform .3s ease,opacity .3s ease;
}
.nav-toggle span{position:relative}
.nav-toggle span::before{position:absolute;top:-6px;left:0}
.nav-toggle span::after{position:absolute;top:6px;left:0}
.site-header.menu-open .nav-toggle span{background:transparent}
.site-header.menu-open .nav-toggle span::before{top:0;transform:rotate(45deg)}
.site-header.menu-open .nav-toggle span::after{top:0;transform:rotate(-45deg)}

.page-hero{
  position:relative;
  padding:178px 0 96px;
  background:linear-gradient(135deg,rgba(4,14,27,.94),rgba(9,45,82,.82)),url('/assets/images/backpic/back-1.png') center/cover;
  color:#fff;
  text-align:center;
  overflow:hidden;
}
.page-hero::before{
  content:"";
  position:absolute;
  width:540px;
  height:540px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(0,194,162,.42),transparent 70%);
  top:-200px;
  right:-140px;
  pointer-events:none;
}
.page-hero::after{
  content:"";
  position:absolute;
  width:420px;
  height:420px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(11,107,255,.35),transparent 70%);
  bottom:-160px;
  left:-120px;
  pointer-events:none;
}
.page-hero .container{position:relative;z-index:2}
.breadcrumb{
  display:flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  font-size:13px;
  color:rgba(255,255,255,.7);
  margin-bottom:24px;
}
.breadcrumb a{color:rgba(255,255,255,.85);transition:color .25s}
.breadcrumb a:hover{color:#fff}
.breadcrumb span{color:rgba(255,255,255,.4)}
.hero-badge{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:8px 16px;
  border-radius:32px;
  background:rgba(255,255,255,.12);
  border:1px solid rgba(255,255,255,.2);
  backdrop-filter:blur(6px);
  font-size:13px;
  font-weight:600;
  color:rgba(255,255,255,.94);
  margin-bottom:20px;
}
.hero-badge i{color:var(--accent)}
.page-hero h1{
  font-size:44px;
  font-weight:800;
  line-height:1.25;
  letter-spacing:.5px;
  margin-bottom:16px;
}
.page-hero .hero-sub{
  font-size:16px;
  line-height:1.8;
  color:rgba(255,255,255,.78);
  max-width:640px;
  margin:0 auto 30px;
}
.hero-actions{
  display:flex;
  justify-content:center;
  gap:14px;
  flex-wrap:wrap;
}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:12px 26px;
  border-radius:50px;
  font-size:15px;
  font-weight:700;
  border:1px solid transparent;
  transition:all .25s ease;
  cursor:pointer;
  white-space:nowrap;
  line-height:1.2;
}
.btn-primary{
  background:var(--primary);
  color:#fff;
  box-shadow:0 8px 20px rgba(11,107,255,.25);
}
.btn-primary:hover{
  background:var(--primary-dark);
  transform:translateY(-2px);
  box-shadow:0 12px 26px rgba(11,107,255,.35);
}
.btn-accent{
  background:var(--accent);
  color:#04281f;
  box-shadow:0 8px 20px rgba(0,194,162,.25);
}
.btn-accent:hover{
  transform:translateY(-2px);
  box-shadow:var(--shadow-glow);
}
.btn-ghost-light{
  border-color:rgba(255,255,255,.35);
  color:#fff;
  background:rgba(255,255,255,.08);
  backdrop-filter:blur(4px);
}
.btn-ghost-light:hover{
  background:rgba(255,255,255,.18);
  border-color:#fff;
}
.btn-lg{padding:16px 34px;font-size:16px}
.btn-sm{padding:8px 16px;font-size:13px}

.section{padding:84px 0}
.section-tinted{background:linear-gradient(180deg,#f4f8fd,#edf3fb)}
.section-head{
  max-width:680px;
  margin:0 auto 48px;
  text-align:center;
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:6px 14px;
  border-radius:30px;
  background:var(--accent-soft);
  color:var(--accent-dark);
  font-size:13px;
  font-weight:700;
  letter-spacing:.4px;
  margin-bottom:14px;
}
.section-title{
  font-size:34px;
  font-weight:800;
  color:var(--dark);
  line-height:1.3;
  margin-bottom:12px;
}
.section-subtitle{
  font-size:16px;
  color:var(--muted);
  line-height:1.75;
}
.grid{
  display:grid;
  gap:24px;
}
.grid-4{grid-template-columns:repeat(4,1fr)}
.grid-2{grid-template-columns:repeat(2,1fr)}

.card{
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--radius-lg);
  padding:28px;
  box-shadow:var(--shadow-sm);
  transition:transform .3s,box-shadow .3s,border-color .3s;
  position:relative;
}
.card:hover{
  transform:translateY(-6px);
  box-shadow:var(--shadow-md);
  border-color:rgba(11,107,255,.35);
}
.card-icon{
  width:54px;
  height:54px;
  border-radius:15px;
  background:linear-gradient(135deg,#eef4ff,#e0faf4);
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:22px;
  color:var(--primary);
  margin-bottom:18px;
}
.card h3{
  font-size:18px;
  font-weight:700;
  color:var(--dark);
  margin-bottom:8px;
}
.card p{
  font-size:14px;
  color:var(--muted);
  line-height:1.75;
}
.badge{
  position:absolute;
  top:16px;
  right:16px;
  padding:4px 10px;
  border-radius:20px;
  font-size:12px;
  font-weight:700;
  background:var(--accent-soft);
  color:var(--accent-dark);
}

.steps{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:24px;
}
.step-item{
  position:relative;
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--radius-lg);
  padding:36px 26px 28px;
  box-shadow:var(--shadow-sm);
  transition:transform .3s,box-shadow .3s,border-color .3s;
}
.step-item:hover{
  transform:translateY(-6px);
  box-shadow:var(--shadow-md);
  border-color:rgba(0,194,162,.4);
}
.step-num{
  font-size:46px;
  font-weight:800;
  line-height:1;
  background:linear-gradient(135deg,var(--primary),var(--accent));
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
  display:inline-block;
  margin-bottom:16px;
}
.step-item h3{
  font-size:18px;
  font-weight:700;
  color:var(--dark);
  margin-bottom:8px;
}
.step-item p{
  font-size:14px;
  color:var(--muted);
  line-height:1.75;
}

.split-block{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:56px;
  align-items:center;
}
.split-media{
  position:relative;
  border-radius:var(--radius-lg);
  overflow:hidden;
  box-shadow:var(--shadow-md);
}
.split-media img{
  width:100%;
  height:420px;
  object-fit:cover;
  transition:transform .45s ease;
}
.split-media:hover img{transform:scale(1.03)}
.split-content .eyebrow{margin-bottom:14px}
.split-content h2{
  font-size:32px;
  font-weight:800;
  color:var(--dark);
  line-height:1.3;
  margin-bottom:14px;
}
.split-content .lead{
  font-size:15px;
  color:var(--muted);
  line-height:1.8;
  margin-bottom:24px;
}
.safe-list{
  display:grid;
  gap:14px;
}
.safe-item{
  display:flex;
  gap:12px;
  align-items:flex-start;
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:12px;
  padding:14px 16px;
  font-size:14px;
  color:var(--text);
  line-height:1.7;
  transition:border-color .25s,box-shadow .25s;
}
.safe-item:hover{
  border-color:rgba(0,194,162,.45);
  box-shadow:var(--shadow-sm);
}
.safe-item i{
  color:var(--accent);
  font-size:18px;
  margin-top:3px;
  flex:none;
}

.news-panel{
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-sm);
  overflow:hidden;
  max-width:880px;
  margin:0 auto;
}
.news-item{
  display:grid;
  grid-template-columns:130px 1fr 18px;
  align-items:center;
  gap:16px;
  padding:20px 26px;
  border-bottom:1px solid var(--border);
  transition:background .25s;
}
.news-item:last-child{border-bottom:none}
.news-item:hover{background:#f7faff}
.news-date{
  font-size:13px;
  color:var(--muted);
  font-variant-numeric:tabular-nums;
}
.news-item a{
  font-size:15px;
  font-weight:600;
  color:var(--text);
  transition:color .25s;
}
.news-item a:hover{color:var(--primary)}
.news-item i{
  color:var(--border);
  font-size:14px;
}

.faq-list{
  max-width:880px;
  margin:0 auto;
  display:grid;
  gap:14px;
}
.faq-item{
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:16px;
  overflow:hidden;
  box-shadow:var(--shadow-sm);
  transition:border-color .25s,box-shadow .25s;
}
.faq-item:hover{border-color:rgba(11,107,255,.25)}
.faq-item summary{
  list-style:none;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:14px;
  padding:20px 24px;
  font-size:16px;
  font-weight:700;
  cursor:pointer;
  color:var(--dark);
  user-select:none;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"\f078";
  font-family:"Font Awesome 6 Free";
  font-weight:900;
  color:var(--primary);
  transition:transform .3s;
  font-size:14px;
  flex:none;
}
.faq-item[open] summary::after{transform:rotate(180deg)}
.faq-item .faq-answer{
  padding:0 24px 22px;
  font-size:14px;
  color:var(--muted);
  line-height:1.85;
}

.cta-box{
  position:relative;
  border-radius:28px;
  background:linear-gradient(130deg,var(--dark),var(--dark-2));
  color:#fff;
  text-align:center;
  padding:68px 40px;
  overflow:hidden;
}
.cta-box::before{
  content:"";
  position:absolute;
  width:360px;
  height:360px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(0,194,162,.45),transparent 70%);
  top:-140px;
  right:-80px;
  pointer-events:none;
}
.cta-box::after{
  content:"";
  position:absolute;
  width:300px;
  height:300px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(11,107,255,.4),transparent 70%);
  bottom:-130px;
  left:-80px;
  pointer-events:none;
}
.cta-box h2{
  font-size:32px;
  font-weight:800;
  margin-bottom:12px;
  letter-spacing:.3px;
}
.cta-box p{
  font-size:16px;
  color:rgba(255,255,255,.75);
  max-width:520px;
  margin:0 auto 30px;
  line-height:1.75;
}
.cta-box .btn{position:relative;z-index:1}

.site-footer{
  background:var(--dark);
  color:rgba(255,255,255,.68);
  padding:70px 0 26px;
}
.footer-grid{
  display:grid;
  grid-template-columns:2fr 1fr 1fr;
  gap:48px;
  padding-bottom:40px;
  border-bottom:1px solid rgba(255,255,255,.08);
}
.footer-brand .brand{color:#fff}
.footer-brand p{
  margin-top:16px;
  font-size:14px;
  line-height:1.8;
  max-width:340px;
}
.footer-col h4{
  color:#fff;
  font-size:15px;
  font-weight:700;
  margin-bottom:16px;
}
.footer-col li a{
  font-size:14px;
  color:rgba(255,255,255,.62);
  display:inline-block;
  padding:4px 0;
  transition:color .25s;
}
.footer-col li a:hover{color:var(--accent)}
.footer-bottom{
  display:flex;
  justify-content:space-between;
  gap:12px;
  flex-wrap:wrap;
  padding-top:22px;
  font-size:13px;
  color:rgba(255,255,255,.4);
}

@media (max-width:1024px){
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(2,1fr)}
  .split-block{grid-template-columns:1fr;gap:36px}
  .split-media img{height:320px}
  .section{padding:68px 0}
  .section-title{font-size:30px}
}

@media (max-width:768px){
  .site-header{top:10px;padding:0 12px}
  .nav-dock{height:56px;padding:0 6px 0 16px}
  .nav-links{
    position:absolute;
    top:calc(100% + 10px);
    left:0;
    right:0;
    flex-direction:column;
    align-items:stretch;
    gap:6px;
    background:#fff;
    border-radius:18px;
    padding:12px;
    box-shadow:var(--shadow-md);
    display:none;
    border:1px solid var(--border);
  }
  .site-header.menu-open .nav-links{display:flex}
  .nav-link{justify-content:flex-start;p15px}
  .nav-actions .btn-sm{display:none}
  .nav-toggle{display:flex}
  .page-hero{padding:148px 0 70px}
  .page-hero h1{font-size:32px}
  .footer-grid{grid-template-columns:1fr;gap:32px}
}

@media (max-width:520px){
  .container{padding:0 16px}
  .grid-2,.grid-4,.steps{grid-template-columns:1fr}
  .page-hero h1{font-size:27px}
  .page-hero .hero-sub{font-size:14px}
  .hero-actions .btn{width:100%}
  .section{padding:56px 0}
  .section-title{font-size:26px}
  .section-subtitle{font-size:14px}
  .news-item{grid-template-columns:1fr;gap:6px;padding:18px 20px}
  .news-date{font-size:12px}
  .news-item i{display:none}
  .cta-box{padding:48px 24px}
  .cta-box h2{font-size:26px}
  .footer-bottom{flex-direction:column;text-align:center}
}