/* roulang page: index */
:root {
  --primary: #ff4e1c;
  --primary-dark: #d9360e;
  --primary-light: #ff7a3d;
  --accent: #00c2a8;
  --accent-dark: #00a08a;
  --dark: #0f1420;
  --dark-2: #1a2130;
  --light: #f8fafc;
  --white: #ffffff;
  --text: #0f1420;
  --text-body: #4b5563;
  --text-muted: #9ca3af;
  --border: #e5e7eb;
  --radius: 16px;
  --radius-sm: 10px;
  --radius-lg: 24px;
  --shadow: 0 10px 30px rgba(15, 20, 32, .08);
  --shadow-lg: 0 20px 50px rgba(15, 20, 32, .12);
  --shadow-primary: 0 10px 30px rgba(255, 78, 28, .28);
  --transition: .25s ease;
  --container: 1200px;
  --header-h: 76px;
}
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
}
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.7;
  color: var(--text);
  background: var(--light);
  -webkit-font-smoothing: antialiased;
}
a {
  text-decoration: none;
  color: inherit;
}
img {
  max-width: 100%;
  display: block;
}
button, input, textarea {
  font-family: inherit;
  font-size: inherit;
  border: none;
  outline: none;
  background: none;
}
ul, ol {
  list-style: none;
}
.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}
.section {
  padding: 96px 0;
}
.section-head {
  max-width: 720px;
  margin: 0 auto 56px;
  text-align: center;
}
.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 78, 28, .08);
  color: var(--primary);
  font-size: 14px;
  font-weight: 600;
  padding: 6px 18px;
  border-radius: 100px;
  margin-bottom: 18px;
  letter-spacing: .5px;
}
.section-tag i {
  font-size: 13px;
}
.section-title {
  font-size: 38px;
  font-weight: 800;
  line-height: 1.25;
  letter-spacing: -1px;
  color: var(--text);
}
.section-desc {
  margin-top: 14px;
  font-size: 16px;
  color: var(--text-body);
  line-height: 1.8;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 15px;
  font-weight: 600;
  padding: 12px 26px;
  border-radius: 100px;
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
  border: 2px solid transparent;
}
.btn:focus-visible {
  outline: 3px solid rgba(255, 78, 28, .4);
  outline-offset: 2px;
}
.btn-primary {
  background: var(--primary);
  color: #fff;
  box-shadow: var(--shadow-primary);
}
.btn-primary:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 14px 36px rgba(255, 78, 28, .36);
}
.btn-primary:active {
  transform: translateY(0);
}
.btn-ghost {
  background: rgba(255, 255, 255, .1);
  color: #fff;
  border-color: rgba(255, 255, 255, .4);
  backdrop-filter: blur(8px);
}
.btn-ghost:hover {
  background: rgba(255, 255, 255, .18);
  border-color: rgba(255, 255, 255, .8);
  transform: translateY(-2px);
}
.btn-light {
  background: #fff;
  color: var(--primary);
  box-shadow: 0 10px 30px rgba(0, 0, 0, .15);
}
.btn-light:hover {
  background: var(--light);
  transform: translateY(-2px);
  box-shadow: 0 16px 38px rgba(0, 0, 0, .2);
}
.btn-lg {
  padding: 15px 36px;
  font-size: 16px;
}

/* ===== Header / Nav ===== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--header-h);
  background: rgba(15, 20, 32, .92);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid rgba(255, 255, 255, .08);
  transition: box-shadow var(--transition);
}
.site-header.scrolled {
  box-shadow: 0 10px 40px rgba(0, 0, 0, .35);
}
.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-h);
  gap: 24px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.brand-icon {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  font-weight: 800;
  color: #fff;
  box-shadow: 0 6px 18px rgba(255, 78, 28, .35);
  flex-shrink: 0;
}
.brand-text {
  font-size: 18px;
  font-weight: 800;
  color: #fff;
  letter-spacing: .5px;
  line-height: 1.2;
}
.brand-text em {
  font-style: normal;
  color: var(--primary-light);
}
.main-nav {
  display: flex;
  align-items: center;
  gap: 8px;
}
.nav-link {
  display: inline-flex;
  align-items: center;
  padding: 10px 20px;
  border-radius: 100px;
  font-size: 15px;
  font-weight: 500;
  color: rgba(255, 255, 255, .72);
  transition: all var(--transition);
  position: relative;
}
.nav-link:hover {
  color: #fff;
  background: rgba(255, 255, 255, .08);
}
.nav-link.active {
  color: #fff;
  background: rgba(255, 78, 28, .18);
  font-weight: 600;
}
.nav-link.active::after {
  content: "";
  position: absolute;
  bottom: 2px;
  left: 50%;
  transform: translateX(-50%);
  width: 16px;
  height: 3px;
  border-radius: 4px;
  background: var(--primary);
}
.nav-cta {
  padding: 9px 22px;
  font-size: 14px;
  flex-shrink: 0;
}
.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background: rgba(255, 255, 255, .08);
  color: #fff;
  font-size: 20px;
  cursor: pointer;
  align-items: center;
  justify-content: center;
  transition: background var(--transition);
}
.nav-toggle:hover {
  background: rgba(255, 255, 255, .16);
}

/* ===== Hero ===== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: calc(var(--header-h) + 60px) 0 80px;
  overflow: hidden;
  background: var(--dark);
}
.hero-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  opacity: .5;
  animation: heroZoom 18s ease-in-out infinite alternate;
}
@keyframes heroZoom {
  from { transform: scale(1); }
  to { transform: scale(1.08); }
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(15, 20, 32, .92) 0%, rgba(15, 20, 32, .75) 50%, rgba(255, 78, 28, .35) 100%);
}
.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 880px;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, .1);
  border: 1px solid rgba(255, 255, 255, .2);
  color: #fff;
  padding: 8px 22px;
  border-radius: 100px;
  font-size: 14px;
  font-weight: 500;
  backdrop-filter: blur(12px);
  margin-bottom: 28px;
  letter-spacing: .5px;
}
.hero-badge i {
  color: var(--accent);
}
.hero h1 {
  font-size: 58px;
  font-weight: 900;
  color: #fff;
  line-height: 1.2;
  letter-spacing: -2px;
  text-shadow: 0 4px 40px rgba(0, 0, 0, .3);
}
.hero h1 span {
  background: linear-gradient(90deg, var(--primary-light), var(--primary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-desc {
  margin-top: 24px;
  font-size: 18px;
  line-height: 1.8;
  color: rgba(255, 255, 255, .82);
  max-width: 680px;
  margin-left: auto;
  margin-right: auto;
}
.hero-actions {
  margin-top: 40px;
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}
.hero-stats {
  margin-top: 64px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  max-width: 640px;
  margin-left: auto;
  margin-right: auto;
}
.stat {
  background: rgba(255, 255, 255, .08);
  border: 1px solid rgba(255, 255, 255, .12);
  border-radius: var(--radius-sm);
  padding: 20px 16px;
  backdrop-filter: blur(10px);
  transition: all var(--transition);
}
.stat:hover {
  background: rgba(255, 255, 255, .14);
  transform: translateY(-3px);
}
.stat strong {
  display: block;
  font-size: 26px;
  font-weight: 800;
  color: #fff;
}
.stat span {
  display: block;
  font-size: 13px;
  color: rgba(255, 255, 255, .65);
  margin-top: 4px;
}
.status-bar {
  position: relative;
  z-index: 3;
  background: linear-gradient(90deg, var(--primary), var(--primary-dark));
  padding: 12px 0;
}
.status-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
  color: #fff;
  font-size: 14px;
  font-weight: 500;
}
.status-inner .status-left {
  display: flex;
  align-items: center;
  gap: 12px;
}
.status-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #fff;
  position: relative;
  flex-shrink: 0;
}
.status-dot::after {
  content: "";
  position: absolute;
  inset: -6px;
  border-radius: 50%;
  border: 2px solid rgba(255, 255, 255, .6);
  animation: pulse 2s ease-out infinite;
}
@keyframes pulse {
  from { opacity: 1; transform: scale(.4); }
  to { opacity: 0; transform: scale(1.4); }
}
.status-time {
  background: rgba(255, 255, 255, .2);
  padding: 4px 14px;
  border-radius: 100px;
  font-size: 13px;
}

/* ===== 核心优势 ===== */
.adv-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.adv-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px 30px;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}
.adv-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--primary), var(--primary-light));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .4s ease;
}
.adv-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-6px);
  border-color: transparent;
}
.adv-card:hover::before {
  transform: scaleX(1);
}
.adv-icon {
  width: 64px;
  height: 64px;
  border-radius: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  margin-bottom: 24px;
  background: linear-gradient(135deg, rgba(255, 78, 28, .1), rgba(255, 122, 61, .16));
  color: var(--primary);
}
.adv-card h3 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 12px;
}
.adv-card p {
  font-size: 15px;
  color: var(--text-body);
  line-height: 1.75;
}

/* ===== 分类入口 ===== */
.category-section {
  background: var(--white);
}
.category-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
}
.category-card {
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--dark);
  position: relative;
  transition: all var(--transition);
  box-shadow: var(--shadow);
}
.category-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
}
.category-card .cat-img {
  height: 220px;
  overflow: hidden;
  position: relative;
}
.category-card .cat-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .5s ease;
}
.category-card:hover .cat-img img {
  transform: scale(1.06);
}
.category-card .cat-img::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 30%, rgba(15, 20, 32, .85) 100%);
}
.cat-body {
  padding: 28px 30px 32px;
  position: relative;
  margin-top: -50px;
  z-index: 2;
}
.cat-body h3 {
  color: #fff;
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 10px;
}
.cat-body p {
  color: rgba(255, 255, 255, .75);
  font-size: 15px;
  line-height: 1.7;
  margin-bottom: 20px;
}
.cat-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--primary-light);
  font-size: 15px;
  font-weight: 600;
  transition: gap var(--transition);
}
.cat-link:hover {
  gap: 14px;
  color: var(--primary);
}

/* ===== 功能特色 ===== */
.feature-section {
  background: var(--light);
}
.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.feature-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 24px;
  transition: all var(--transition);
  display: flex;
  gap: 18px;
  align-items: flex-start;
}
.feature-card:hover {
  box-shadow: var(--shadow);
  border-color: rgba(255, 78, 28, .2);
  transform: translateY(-4px);
}
.feature-icon {
  width: 50px;
  height: 50px;
  border-radius: 14px;
  background: rgba(0, 194, 168, .1);
  color: var(--accent-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  flex-shrink: 0;
  transition: all var(--transition);
}
.feature-card:hover .feature-icon {
  background: var(--accent);
  color: #fff;
}
.feature-card h4 {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 6px;
}
.feature-card p {
  font-size: 14px;
  color: var(--text-body);
  line-height: 1.65;
}

/* ===== 最新信息 ===== */
.news-section {
  background: var(--white);
}
.news-panel {
  background: var(--light);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  padding: 36px;
  max-width: 860px;
  margin: 0 auto;
}
.news-list {
  display: flex;
  flex-direction: column;
}
.news-item {
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 16px 12px;
  border-radius: var(--radius-sm);
  transition: background var(--transition);
}
.news-item:hover {
  background: var(--white);
}
.news-item + .news-item {
  border-top: 1px solid var(--border);
}
.news-cat {
  flex-shrink: 0;
  background: rgba(255, 78, 28, .1);
  color: var(--primary);
  font-size: 12px;
  font-weight: 600;
  padding: 4px 14px;
  border-radius: 100px;
}
.news-title {
  flex: 1;
  font-size: 15px;
  font-weight: 500;
  color: var(--text);
  transition: color var(--transition);
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 1;
  -webkit-box-orient: vertical;
}
.news-item:hover .news-title {
  color: var(--primary);
}
.news-date {
  flex-shrink: 0;
  font-size: 13px;
  color: var(--text-muted);
  font-variant-numeric: tabular-nums;
}
.empty-tip {
  text-align: center;
  padding: 40px 20px;
  color: var(--text-muted);
  font-size: 15px;
}
.empty-tip i {
  font-size: 30px;
  display: block;
  margin-bottom: 12px;
  color: var(--text-muted);
}

/* ===== 流程 ===== */
.steps-section {
  background: var(--light);
}
.steps-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px;
  position: relative;
}
.steps-grid::before {
  content: "";
  position: absolute;
  top: 32px;
  left: 10%;
  right: 10%;
  height: 2px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  opacity: .2;
}
.step {
  text-align: center;
  position: relative;
}
.step-num {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  font-weight: 800;
  color: #fff;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  box-shadow: var(--shadow-primary);
  margin: 0 auto 22px;
  position: relative;
  z-index: 1;
  border: 4px solid var(--light);
}
.step h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 10px;
}
.step p {
  font-size: 14px;
  color: var(--text-body);
  line-height: 1.65;
  max-width: 220px;
  margin: 0 auto;
}

/* ===== 数据带 ===== */
.stats-band {
  position: relative;
  background: var(--dark);
  padding: 80px 0;
  overflow: hidden;
}
.stats-band::before {
  content: "";
  position: absolute;
  inset: 0;
  background: url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  opacity: .25;
}
.stats-band .container {
  position: relative;
  z-index: 1;
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  text-align: center;
}
.stat-item {
  padding: 36px 20px;
  background: rgba(255, 255, 255, .05);
  border: 1px solid rgba(255, 255, 255, .1);
  border-radius: var(--radius);
  backdrop-filter: blur(8px);
  transition: all var(--transition);
}
.stat-item:hover {
  background: rgba(255, 255, 255, .1);
  transform: translateY(-4px);
}
.stat-item strong {
  display: block;
  font-size: 40px;
  font-weight: 900;
  color: #fff;
  letter-spacing: -1px;
  line-height: 1.2;
}
.stat-item span {
  display: block;
  margin-top: 8px;
  font-size: 14px;
  color: rgba(255, 255, 255, .65);
  letter-spacing: .5px;
}

/* ===== FAQ ===== */
.faq-section {
  background: var(--white);
}
.faq-wrap {
  max-width: 820px;
  margin: 0 auto;
}
.faq-item {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 14px;
  transition: all var(--transition);
  overflow: hidden;
  background: var(--white);
}
.faq-item:hover {
  border-color: rgba(255, 78, 28, .25);
  box-shadow: var(--shadow);
}
.faq-item details > summary {
  list-style: none;
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 22px 26px;
  cursor: pointer;
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  user-select: none;
}
.faq-item details > summary::-webkit-details-marker {
  display: none;
}
.faq-icon {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(255, 78, 28, .08);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  flex-shrink: 0;
  transition: all var(--transition);
}
.faq-item details[open] .faq-icon {
  background: var(--primary);
  color: #fff;
  transform: rotate(45deg);
}
.faq-item details .faq-answer {
  padding: 0 26px 24px 78px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--text-body);
}

/* ===== CTA ===== */
.cta-section {
  padding: 0;
}
.cta-band {
  position: relative;
  padding: 90px 0;
  background: linear-gradient(135deg, var(--dark) 0%, #1a1030 60%, rgba(255, 78, 28, .55) 100%);
  overflow: hidden;
  text-align: center;
}
.cta-band::before {
  content: "";
  position: absolute;
  inset: 0;
  background: url('/assets/images/backpic/back-3.png') center/cover no-repeat;
  opacity: .2;
}
.cta-band .container {
  position: relative;
  z-index: 1;
}
.cta-band h2 {
  font-size: 38px;
  font-weight: 900;
  color: #fff;
  letter-spacing: -1px;
  margin-bottom: 18px;
}
.cta-band p {
  font-size: 17px;
  color: rgba(255, 255, 255, .75);
  max-width: 620px;
  margin: 0 auto 36px;
  line-height: 1.8;
}
.cta-actions {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

/* ===== Footer ===== */
.site-footer {
  background: var(--dark);
  color: rgba(255, 255, 255, .7);
  padding: 72px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255, 255, 255, .08);
}
.footer-brand .brand {
  margin-bottom: 16px;
}
.footer-brand p {
  font-size: 14px;
  line-height: 1.75;
  color: rgba(255, 255, 255, .55);
  max-width: 320px;
}
.footer-col h4 {
  color: #fff;
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 18px;
}
.footer-col ul li {
  margin-bottom: 10px;
}
.footer-col ul li a {
  font-size: 14px;
  color: rgba(255, 255, 255, .55);
  transition: all var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.footer-col ul li a:hover {
  color: var(--primary-light);
  padding-left: 4px;
}
.footer-col ul li a i {
  font-size: 12px;
  opacity: .7;
}
.footer-bottom {
  padding: 24px 0;
  text-align: center;
  font-size: 13px;
  color: rgba(255, 255, 255, .35);
}

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
  .section {
    padding: 76px 0;
  }
  .hero h1 {
    font-size: 44px;
  }
  .section-title {
    font-size: 32px;
  }
  .steps-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 40px 24px;
  }
  .steps-grid::before {
    display: none;
  }
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }
  .feature-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (max-width: 920px) {
  .nav-toggle {
    display: flex;
  }
  .nav-cta {
    display: none;
  }
  .main-nav {
    position: fixed;
    top: var(--header-h);
    left: 16px;
    right: 16px;
    background: rgba(15, 20, 32, .98);
    border: 1px solid rgba(255, 255, 255, .08);
    border-radius: var(--radius);
    flex-direction: column;
    align-items: stretch;
    padding: 16px;
    gap: 6px;
    transform: translateY(-16px);
    opacity: 0;
    pointer-events: none;
    transition: all .3s ease;
    box-shadow: var(--shadow-lg);
    backdrop-filter: blur(20px);
  }
  .main-nav.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }
  .nav-link {
    padding: 14px 18px;
    border-radius: var(--radius-sm);
  }
  .nav-link.active {
    background: rgba(255, 78, 28, .15);
  }
  .nav-link.active::after {
    display: none;
  }
  .adv-grid {
    grid-template-columns: 1fr;
  }
  .category-grid {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 36px;
  }
}
@media (max-width: 768px) {
  .section {
    padding: 60px 0;
  }
  .hero {
    min-height: auto;
    padding: calc(var(--header-h) + 40px) 0 60px;
  }
  .hero h1 {
    font-size: 34px;
  }
  .hero-desc {
    font-size: 16px;
  }
  .hero-stats {
    grid-template-columns: 1fr;
    gap: 12px;
    margin-top: 40px;
  }
  .brand-text {
    font-size: 15px;
  }
  .brand-text em {
    display: block;
    font-size: 12px;
    opacity: .8;
  }
  .status-inner {
    justify-content: center;
    text-align: center;
    flex-direction: column;
    gap: 4px;
  }
  .section-title {
    font-size: 28px;
  }
  .feature-grid {
    grid-template-columns: 1fr;
  }
  .news-panel {
    padding: 20px;
  }
  .news-item {
    flex-wrap: wrap;
    gap: 10px;
  }
  .news-title {
    -webkit-line-clamp: 2;
    width: 100%;
    order: 3;
  }
  .news-date {
    margin-left: auto;
  }
  .steps-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .stats-grid {
    grid-template-columns: 1fr;
  }
  .cta-band h2 {
    font-size: 28px;
  }
  .faq-item details > summary {
    padding: 18px 18px;
    font-size: 15px;
  }
  .faq-item details .faq-answer {
    padding: 0 18px 18px 60px;
    font-size: 14px;
  }
  .btn-lg {
    padding: 13px 28px;
    font-size: 15px;
  }
}
@media (max-width: 520px) {
  .container {
    padding: 0 16px;
  }
  .hero h1 {
    font-size: 28px;
  }
  .hero-desc {
    font-size: 15px;
  }
  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }
  .hero-actions .btn {
    width: 100%;
  }
  .adv-card {
    padding: 26px 22px;
  }
  .cat-body {
    padding: 20px;
  }
  .cat-body h3 {
    font-size: 19px;
  }
  .stats-band {
    padding: 50px 0;
  }
  .stat-item strong {
    font-size: 32px;
  }
  .section-head {
    margin-bottom: 36px;
  }
  .cta-actions {
    flex-direction: column;
    align-items: stretch;
  }
  .cta-actions .btn {
    width: 100%;
  }
  .brand-icon {
    width: 36px;
    height: 36px;
    font-size: 17px;
    border-radius: 10px;
  }
  .brand-text {
    font-size: 14px;
  }
  .brand-text em {
    font-size: 11px;
  }
}

/* roulang page: category1 */
:root {
            --primary: #e63946;
            --primary-dark: #b02a35;
            --primary-light: #ff6b6b;
            --secondary: #ffd166;
            --accent: #0096c7;
            --bg: #f8f9fa;
            --bg-alt: #ffffff;
            --bg-dark: #101418;
            --text: #1a1d21;
            --text-light: #4a5568;
            --text-muted: #718096;
            --border: #e2e8f0;
            --radius: 16px;
            --radius-sm: 10px;
            --shadow: 0 4px 24px rgba(0, 0, 0, 0.06);
            --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.1);
            --shadow-primary: 0 8px 30px rgba(230, 57, 70, 0.25);
            --transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            --container: 1200px;
        }

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

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

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            font-size: 16px;
            line-height: 1.75;
            color: var(--text);
            background-color: var(--bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

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

        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: 3px solid rgba(230, 57, 70, 0.4);
            outline-offset: 2px;
        }

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

        ul,
        ol {
            list-style: none;
        }

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

        /* ===== 设计系统通用组件 ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            padding: 13px 32px;
            border-radius: 50px;
            font-size: 15px;
            font-weight: 600;
            line-height: 1.4;
            letter-spacing: 0.02em;
            transition: var(--transition);
            border: 2px solid transparent;
            white-space: nowrap;
        }

        .btn i {
            font-size: 14px;
        }

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

        .btn-primary:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 12px 36px rgba(230, 57, 70, 0.35);
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 4px 16px rgba(230, 57, 70, 0.25);
        }

        .btn-outline {
            background: transparent;
            color: var(--primary);
            border-color: rgba(230, 57, 70, 0.4);
        }

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

        .btn-light {
            background: #fff;
            color: var(--primary);
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
        }

        .btn-light:hover {
            background: var(--secondary);
            color: var(--primary-dark);
            transform: translateY(-2px);
        }

        .section {
            padding: 100px 0;
        }

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

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

        .section-head {
            max-width: 700px;
            margin: 0 auto 60px;
            text-align: center;
        }

        .section-tag {
            display: inline-block;
            background: rgba(230, 57, 70, 0.08);
            color: var(--primary);
            font-size: 14px;
            font-weight: 600;
            padding: 6px 20px;
            border-radius: 30px;
            letter-spacing: 0.05em;
            margin-bottom: 16px;
            text-transform: uppercase;
        }

        .section-title {
            font-size: 38px;
            font-weight: 800;
            line-height: 1.3;
            color: var(--text);
            margin-bottom: 16px;
        }

        .section-desc {
            font-size: 17px;
            color: var(--text-light);
            line-height: 1.8;
        }

        .text-gradient {
            background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        /* ===== Header / 导航 ===== */
        .site-header {
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(226, 232, 240, 0.7);
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 2px 20px rgba(0, 0, 0, 0.04);
        }

        .nav-wrap {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            gap: 32px;
        }

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

        .brand-icon {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 12px;
            background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
            color: #fff;
            font-size: 20px;
            font-weight: 800;
            box-shadow: 0 4px 14px rgba(230, 57, 70, 0.3);
            flex-shrink: 0;
        }

        .brand-text {
            font-size: 20px;
            font-weight: 800;
            letter-spacing: 0.02em;
            color: var(--text);
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .nav-link {
            padding: 8px 18px;
            border-radius: 30px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-light);
            transition: var(--transition);
            position: relative;
        }

        .nav-link:hover {
            color: var(--primary);
            background: rgba(230, 57, 70, 0.06);
        }

        .nav-link.active {
            color: var(--primary);
            background: rgba(230, 57, 70, 0.1);
            font-weight: 600;
        }

        .nav-cta {
            padding: 10px 24px;
            font-size: 14px;
            flex-shrink: 0;
        }

        .nav-toggle {
            display: none;
            width: 44px;
            height: 44px;
            border-radius: 10px;
            background: var(--bg);
            align-items: center;
            justify-content: center;
            font-size: 20px;
            color: var(--text);
            transition: var(--transition);
        }

        .nav-toggle:hover {
            background: rgba(230, 57, 70, 0.1);
            color: var(--primary);
        }

        /* ===== 分类页 Hero ===== */
        .category-hero {
            position: relative;
            padding: 120px 0 100px;
            background: linear-gradient(135deg, #101418 0%, #1a1e26 50%, #2a1a1c 100%);
            color: #fff;
            overflow: hidden;
        }

        .category-hero::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            opacity: 0.25;
            z-index: 1;
        }

        .category-hero::after {
            content: "";
            position: absolute;
            bottom: -60px;
            right: -60px;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(230, 57, 70, 0.3) 0%, transparent 70%);
            z-index: 1;
        }

        .category-hero .container {
            position: relative;
            z-index: 2;
        }

        .hero-breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 24px;
        }

        .hero-breadcrumb a {
            color: rgba(255, 255, 255, 0.8);
        }

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

        .hero-breadcrumb i {
            font-size: 12px;
            color: rgba(255, 255, 255, 0.4);
        }

        .category-hero h1 {
            font-size: 48px;
            font-weight: 900;
            line-height: 1.25;
            margin-bottom: 20px;
            letter-spacing: 0.01em;
        }

        .category-hero h1 .highlight {
            color: var(--secondary);
        }

        .hero-desc {
            max-width: 640px;
            font-size: 17px;
            line-height: 1.85;
            color: rgba(255, 255, 255, 0.85);
            margin-bottom: 36px;
        }

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

        .hero-meta {
            display: flex;
            align-items: center;
            gap: 24px;
            margin-top: 40px;
            padding-top: 28px;
            border-top: 1px solid rgba(255, 255, 255, 0.15);
            flex-wrap: wrap;
        }

        .hero-meta-item {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.75);
        }

        .hero-meta-item i {
            color: var(--secondary);
            font-size: 16px;
        }

        /* ===== 入口类型卡片 ===== */
        .entry-cards-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

        .entry-card {
            background: var(--bg-alt);
            border-radius: var(--radius);
            padding: 36px 30px;
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }

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

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

        .entry-card:hover::before {
            transform: scaleX(1);
        }

        .entry-icon {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 64px;
            height: 64px;
            border-radius: 18px;
            background: linear-gradient(135deg, rgba(230, 57, 70, 0.1) 0%, rgba(0, 150, 199, 0.1) 100%);
            color: var(--primary);
            font-size: 26px;
            margin-bottom: 22px;
        }

        .entry-card h3 {
            font-size: 21px;
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--text);
        }

        .entry-card p {
            font-size: 15px;
            color: var(--text-light);
            line-height: 1.75;
            margin-bottom: 18px;
        }

        .entry-tag-list {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        .tag {
            display: inline-block;
            background: rgba(230, 57, 70, 0.06);
            color: var(--primary);
            font-size: 13px;
            font-weight: 500;
            padding: 4px 14px;
            border-radius: 30px;
            transition: var(--transition);
        }

        .tag:hover {
            background: var(--primary);
            color: #fff;
        }

        /* ===== 登录流程 ===== */
        .steps-section {
            background: var(--bg-alt);
        }

        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 30px;
            position: relative;
        }

        .steps-grid::before {
            content: "";
            position: absolute;
            top: 40px;
            left: 12%;
            right: 12%;
            height: 2px;
            background: linear-gradient(90deg, var(--primary), var(--accent));
            opacity: 0.2;
        }

        .step-item {
            text-align: center;
            position: relative;
            z-index: 1;
        }

        .step-num {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 80px;
            height: 80px;
            margin: 0 auto 24px;
            border-radius: 50%;
            background: var(--bg-alt);
            border: 3px solid var(--primary);
            color: var(--primary);
            font-size: 28px;
            font-weight: 800;
            box-shadow: 0 8px 24px rgba(230, 57, 70, 0.15);
            position: relative;
        }

        .step-num::after {
            content: "";
            position: absolute;
            inset: -8px;
            border-radius: 50%;
            border: 2px dashed rgba(230, 57, 70, 0.2);
            animation: spin 20s linear infinite;
        }

        @keyframes spin {
            to {
                transform: rotate(360deg);
            }
        }

        .step-item h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 10px;
        }

        .step-item p {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.7;
            max-width: 220px;
            margin: 0 auto;
        }

        /* ===== 入口对比表 ===== */
        .compare-table-wrap {
            background: var(--bg-alt);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            overflow: hidden;
            border: 1px solid var(--border);
        }

        .compare-table {
            width: 100%;
            border-collapse: collapse;
            min-width: 640px;
        }

        .compare-table th {
            padding: 20px 24px;
            text-align: left;
            font-size: 16px;
            font-weight: 700;
            color: var(--text);
            background: rgba(230, 57, 70, 0.04);
            border-bottom: 2px solid var(--border);
        }

        .compare-table td {
            padding: 18px 24px;
            border-bottom: 1px solid var(--border);
            font-size: 15px;
            color: var(--text-light);
        }

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

        .compare-table tr:hover td {
            background: rgba(230, 57, 70, 0.02);
        }

        .table-status {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            font-weight: 600;
            padding: 4px 16px;
            border-radius: 30px;
        }

        .table-status.online {
            background: rgba(0, 150, 199, 0.1);
            color: var(--accent);
        }

        .table-status.hot {
            background: rgba(230, 57, 70, 0.1);
            color: var(--primary);
        }

        /* ===== 安全提醒 ===== */
        .safety-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .safety-item {
            display: flex;
            gap: 16px;
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: var(--radius);
            padding: 28px 24px;
            transition: var(--transition);
        }

        .safety-item:hover {
            background: rgba(255, 255, 255, 0.07);
            transform: translateY(-3px);
        }

        .safety-icon {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 48px;
            height: 48px;
            border-radius: 14px;
            background: rgba(255, 255, 255, 0.1);
            color: var(--secondary);
            font-size: 20px;
            flex-shrink: 0;
        }

        .safety-item h3 {
            font-size: 16px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 6px;
        }

        .safety-item p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.65);
            line-height: 1.7;
        }

        .section-dark .section-title {
            color: #fff;
        }

        .section-dark .section-desc {
            color: rgba(255, 255, 255, 0.7);
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 860px;
            margin: 0 auto;
        }

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

        .faq-item:hover {
            border-color: rgba(230, 57, 70, 0.3);
            box-shadow: var(--shadow);
        }

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

        .faq-question i {
            color: var(--primary);
            font-size: 14px;
            transition: var(--transition);
        }

        .faq-item.open .faq-question i {
            transform: rotate(180deg);
        }

        .faq-answer {
            padding: 0 28px 24px;
            font-size: 15px;
            color: var(--text-light);
            line-height: 1.8;
            display: none;
        }

        .faq-item.open .faq-answer {
            display: block;
        }

        /* ===== CTA ===== */
        .cta-section {
            position: relative;
            overflow: hidden;
        }

        .cta-band {
            position: relative;
            background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
            border-radius: 28px;
            padding: 72px 60px;
            overflow: hidden;
            color: #fff;
            box-shadow: 0 20px 60px rgba(0, 150, 199, 0.25);
            text-align: center;
        }

        .cta-band::before {
            content: "";
            position: absolute;
            top: -40px;
            right: -40px;
            width: 200px;
            height: 200px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.08);
        }

        .cta-band::after {
            content: "";
            position: absolute;
            bottom: -60px;
            left: 30px;
            width: 160px;
            height: 160px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.06);
        }

        .cta-band .container-inner {
            position: relative;
            z-index: 1;
        }

        .cta-band h2 {
            font-size: 36px;
            font-weight: 800;
            margin-bottom: 16px;
        }

        .cta-band p {
            font-size: 17px;
            color: rgba(255, 255, 255, 0.9);
            max-width: 560px;
            margin: 0 auto 36px;
        }

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

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255, 255, 255, 0.7);
            padding: 80px 0 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr;
            gap: 48px;
            padding-bottom: 56px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .footer-brand .brand-text {
            color: #fff;
            font-size: 20px;
        }

        .footer-brand p {
            font-size: 15px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.55);
            margin-top: 18px;
            max-width: 360px;
        }

        .footer-col h4 {
            color: #fff;
            font-size: 17px;
            font-weight: 600;
            margin-bottom: 22px;
        }

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

        .footer-col ul li a {
            font-size: 15px;
            color: rgba(255, 255, 255, 0.55);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .footer-col ul li a i {
            font-size: 10px;
            color: var(--primary-light);
        }

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

        .footer-bottom {
            padding: 28px 0;
            text-align: center;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.35);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .nav-wrap {
                gap: 16px;
            }
            .brand-text {
                font-size: 17px;
            }
            .nav-link {
                padding: 7px 14px;
                font-size: 14px;
            }
            .nav-cta {
                padding: 9px 18px;
                font-size: 13px;
            }
            .category-hero {
                padding: 100px 0 80px;
            }
            .category-hero h1 {
                font-size: 40px;
            }
            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 40px;
            }
            .steps-grid::before {
                display: none;
            }
            .entry-cards-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .safety-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .cta-band {
                padding: 56px 36px;
            }
        }

        @media (max-width: 768px) {
            .nav-toggle {
                display: flex;
            }
            .main-nav {
                position: fixed;
                top: 72px;
                left: 0;
                width: 100%;
                background: #fff;
                flex-direction: column;
                align-items: stretch;
                padding: 20px 24px;
                gap: 8px;
                box-shadow: 0 16px 40px rgba(0, 0, 0, 0.12);
                transform: translateY(-120%);
                transition: var(--transition);
                z-index: 999;
                border-radius: 0 0 20px 20px;
            }
            .main-nav.open {
                transform: translateY(0);
            }
            .nav-link {
                padding: 14px 16px;
                font-size: 16px;
                border-radius: 12px;
            }
            .nav-cta {
                display: none;
            }
            .section {
                padding: 70px 0;
            }
            .section-title {
                font-size: 30px;
            }
            .category-hero h1 {
                font-size: 34px;
            }
            .hero-desc {
                font-size: 15px;
            }
            .entry-cards-grid {
                grid-template-columns: 1fr;
            }
            .steps-grid {
                grid-template-columns: 1fr;
                gap: 36px;
            }
            .safety-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 36px;
            }
            .cta-band {
                padding: 48px 24px;
            }
            .cta-band h2 {
                font-size: 28px;
            }
            .hero-actions .btn {
                width: 100%;
            }
            .compare-table-wrap {
                overflow-x: auto;
            }
            .hero-meta {
                gap: 14px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 18px;
            }
            .brand-text {
                font-size: 15px;
            }
            .brand-icon {
                width: 36px;
                height: 36px;
                font-size: 17px;
            }
            .category-hero {
                padding: 80px 0 60px;
            }
            .category-hero h1 {
                font-size: 28px;
            }
            .hero-breadcrumb {
                font-size: 13px;
            }
            .section-title {
                font-size: 26px;
            }
            .section-desc {
                font-size: 15px;
            }
            .entry-card {
                padding: 26px 22px;
            }
            .btn {
                padding: 12px 22px;
                font-size: 14px;
                width: 100%;
            }
            .faq-question {
                padding: 18px 20px;
                font-size: 15px;
            }
            .faq-answer {
                padding: 0 20px 20px;
                font-size: 14px;
            }
            .cta-band {
                padding: 40px 20px;
                border-radius: 20px;
            }
            .cta-band h2 {
                font-size: 24px;
            }
            .cta-band p {
                font-size: 15px;
            }
            .footer-bottom {
                font-size: 13px;
            }
        }

/* roulang page: article */
:root {
  --primary: #ff5a2e;
  --primary-dark: #e6461a;
  --primary-light: #ff8a5c;
  --deep: #0b1f33;
  --deep-2: #122a45;
  --bg: #f5f7fc;
  --white: #ffffff;
  --text: #14243b;
  --text-weak: #6b7a90;
  --border: #e4e9f2;
  --radius: 18px;
  --radius-sm: 12px;
  --shadow-sm: 0 4px 16px rgba(11, 31, 51, 0.06);
  --shadow-md: 0 12px 40px rgba(11, 31, 51, 0.08);
  --shadow-lg: 0 20px 50px rgba(11, 31, 51, 0.14);
  --space: 80px;
  --font: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", system-ui, -apple-system, sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.8;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: inherit;
  text-decoration: none;
  transition: color 0.25s ease;
}

a:hover {
  text-decoration: none;
}

ul, ol {
  list-style: none;
}

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

.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 32px;
}

/* ===== Header & Nav ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(11, 31, 51, 0.97);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.18);
}

.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
  gap: 24px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.brand-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--primary), #ff9a3d);
  color: #fff;
  font-size: 20px;
  font-weight: 800;
  box-shadow: 0 6px 18px rgba(255, 90, 46, 0.4);
}

.brand-text {
  font-size: 19px;
  font-weight: 700;
  color: #fff;
  letter-spacing: 0.5px;
  white-space: nowrap;
}

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

.nav-link {
  position: relative;
  display: inline-flex;
  align-items: center;
  padding: 10px 18px;
  border-radius: 999px;
  color: #c8d3e0;
  font-size: 15px;
  font-weight: 500;
  transition: all 0.25s ease;
}

.nav-link:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.08);
}

.nav-link.active {
  color: #fff;
  background: rgba(255, 90, 46, 0.18);
}

.nav-link.active::after {
  content: "";
  position: absolute;
  bottom: 4px;
  left: 50%;
  transform: translateX(-50%);
  width: 18px;
  height: 3px;
  border-radius: 99px;
  background: var(--primary);
}

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 26px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  border: none;
  text-decoration: none;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), #ff8a3d);
  color: #fff;
  box-shadow: 0 8px 24px rgba(255, 90, 46, 0.32);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 30px rgba(255, 90, 46, 0.45);
  color: #fff;
}

.btn-outline {
  background: transparent;
  color: var(--deep);
  border: 2px solid var(--border);
}

.btn-outline:hover {
  border-color: var(--primary);
  color: var(--primary);
  background: rgba(255, 90, 46, 0.05);
}

.btn-light {
  background: #fff;
  color: var(--deep);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.14);
}

.btn-light:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 30px rgba(0, 0, 0, 0.2);
  color: var(--deep);
}

.btn-block {
  display: flex;
  width: 100%;
}

.btn-ghost {
  background: transparent;
  color: var(--primary);
  border: 2px solid var(--primary);
}

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

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
  cursor: pointer;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  transition: background 0.25s ease;
}

.nav-toggle:hover {
  background: rgba(255, 255, 255, 0.16);
}

/* ===== Article Hero ===== */
.article-hero {
  position: relative;
  padding: 96px 0 72px;
  background: linear-gradient(100deg, rgba(11, 31, 51, 0.94) 20%, rgba(11, 31, 51, 0.72) 60%, rgba(255, 90, 46, 0.35) 100%),
              url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  color: #fff;
  overflow: hidden;
}

.article-hero::before {
  content: "";
  position: absolute;
  right: -160px;
  top: -160px;
  width: 420px;
  height: 420px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 90, 46, 0.5), transparent 70%);
}

.article-hero::after {
  content: "";
  position: absolute;
  left: -80px;
  bottom: -120px;
  width: 280px;
  height: 280px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 138, 92, 0.3), transparent 70%);
}

.article-hero .container {
  position: relative;
  z-index: 2;
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 28px;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.7);
}

.breadcrumb a {
  color: rgba(255, 255, 255, 0.7);
  transition: color 0.2s ease;
}

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

.breadcrumb i {
  font-size: 10px;
  color: rgba(255, 255, 255, 0.4);
}

.breadcrumb span {
  color: rgba(255, 255, 255, 0.9);
}

.article-hero-title {
  font-size: 36px;
  font-weight: 800;
  line-height: 1.35;
  max-width: 860px;
  letter-spacing: 0.5px;
  margin-bottom: 20px;
}

.article-hero-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.78);
}

.article-hero-meta .badge {
  background: rgba(255, 90, 46, 0.85);
  color: #fff;
  padding: 6px 16px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 600;
}

.article-hero-meta span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.article-hero-meta i {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.5);
}

/* ===== Article Main ===== */
.article-main {
  padding: 64px 0 80px;
}

.article-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 360px;
  gap: 44px;
  align-items: start;
}

.article-content-card {
  background: var(--white);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-md);
  padding: 48px;
  overflow: hidden;
}

.article-body {
  font-size: 16px;
  line-height: 2;
  color: #2c3c50;
}

.article-body h2,
.article-body h3,
.article-body h4 {
  margin-top: 2em;
  margin-bottom: 0.8em;
  color: var(--deep);
  font-weight: 700;
  line-height: 1.5;
}

.article-body h2 {
  font-size: 24px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--border);
}

.article-body h3 {
  font-size: 20px;
}

.article-body h4 {
  font-size: 17px;
}

.article-body p {
  margin-bottom: 1.4em;
}

.article-body ul,
.article-body ol {
  margin-bottom: 1.4em;
  padding-left: 1.4em;
}

.article-body ul li {
  list-style: disc;
  margin-bottom: 0.5em;
}

.article-body ol li {
  list-style: decimal;
  margin-bottom: 0.5em;
}

.article-body img {
  border-radius: var(--radius-sm);
  margin: 1.6em 0;
  box-shadow: var(--shadow-sm);
}

.article-body a {
  color: var(--primary);
  font-weight: 500;
  border-bottom: 1px solid transparent;
}

.article-body a:hover {
  border-bottom-color: var(--primary);
}

.article-body blockquote {
  margin: 1.6em 0;
  padding: 20px 24px;
  border-left: 4px solid var(--primary);
  background: rgba(255, 90, 46, 0.06);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  color: var(--text-weak);
  font-style: normal;
}

.article-body table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.6em 0;
  border-radius: var(--radius-sm);
  overflow: hidden;
  border: 1px solid var(--border);
}

.article-body table th,
.article-body table td {
  padding: 14px 18px;
  border-bottom: 1px solid var(--border);
  text-align: left;
  font-size: 15px;
}

.article-body table th {
  background: var(--deep);
  color: #fff;
  font-weight: 600;
}

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

.article-body code {
  background: #f0f2f7;
  padding: 3px 8px;
  border-radius: 6px;
  font-size: 14px;
  font-family: "SF Mono", Consolas, Monaco, monospace;
  color: var(--primary-dark);
}

.not-found-box {
  text-align: center;
  padding: 80px 20px;
}

.not-found-box i {
  font-size: 52px;
  color: var(--primary);
  margin-bottom: 20px;
}

.not-found-box h2 {
  font-size: 26px;
  color: var(--deep);
  margin-bottom: 12px;
}

.not-found-box p {
  color: var(--text-weak);
  margin-bottom: 24px;
  font-size: 16px;
}

/* ===== Sidebar ===== */
.article-sidebar {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.side-card {
  background: var(--white);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  padding: 28px;
}

.side-card-cta {
  background: linear-gradient(150deg, var(--deep), var(--deep-2));
  border: none;
  color: #fff;
  position: relative;
  overflow: hidden;
}

.side-card-cta::after {
  content: "";
  position: absolute;
  right: -60px;
  top: -60px;
  width: 150px;
  height: 150px;
  border-radius: 50%;
  background: rgba(255, 90, 46, 0.35);
}

.side-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  border-radius: 14px;
  background: rgba(255, 90, 46, 0.15);
  color: var(--primary-light);
  font-size: 22px;
  margin-bottom: 16px;
}

.side-card-cta h3 {
  font-size: 19px;
  font-weight: 700;
  margin-bottom: 10px;
  letter-spacing: 0.5px;
}

.side-card-cta p {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: 20px;
  line-height: 1.8;
}

.side-card-cta .btn-ghost {
  border-color: var(--primary-light);
  color: var(--primary-light);
  position: relative;
  z-index: 1;
}

.side-card h4 {
  font-size: 17px;
  font-weight: 700;
  color: var(--deep);
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--border);
}

.side-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 20px;
}

.side-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 14.5px;
  color: #3d4c63;
  line-height: 1.6;
}

.side-list i {
  color: var(--primary);
  margin-top: 5px;
  font-size: 13px;
}

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--primary);
  font-weight: 600;
  font-size: 14.5px;
  transition: gap 0.25s ease, color 0.25s ease;
}

.text-link:hover {
  color: var(--primary-dark);
  gap: 10px;
}

.side-tip {
  background: rgba(255, 90, 46, 0.05);
  border-color: rgba(255, 90, 46, 0.18);
}

.side-tip h4 {
  color: var(--primary-dark);
  border-bottom-color: rgba(255, 90, 46, 0.2);
}

.side-tip p {
  font-size: 14px;
  color: var(--text-weak);
  line-height: 1.8;
}

/* ===== Related Section ===== */
.section {
  padding: var(--space) 0;
}

.related-section {
  background: var(--white);
  border-top: 1px solid var(--border);
}

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

.section-tag {
  display: inline-block;
  padding: 6px 18px;
  border-radius: 999px;
  background: rgba(255, 90, 46, 0.1);
  color: var(--primary);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 1px;
  margin-bottom: 14px;
}

.section-head h2 {
  font-size: 30px;
  font-weight: 800;
  color: var(--deep);
  margin-bottom: 12px;
  line-height: 1.4;
}

.section-head p {
  font-size: 16px;
  color: var(--text-weak);
  line-height: 1.8;
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.rel-card {
  background: var(--bg);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all 0.35s ease;
  display: flex;
  flex-direction: column;
}

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

.rel-img {
  overflow: hidden;
  position: relative;
  aspect-ratio: 16 / 9;
  background: var(--deep);
}

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

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

.rel-body {
  padding: 24px;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.rel-body .badge {
  align-self: flex-start;
  display: inline-block;
  padding: 5px 14px;
  border-radius: 999px;
  background: rgba(255, 90, 46, 0.1);
  color: var(--primary);
  font-size: 12.5px;
  font-weight: 600;
  margin-bottom: 12px;
}

.rel-body h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--deep);
  margin-bottom: 10px;
  line-height: 1.5;
  transition: color 0.25s ease;
}

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

.rel-body p {
  font-size: 14.5px;
  color: var(--text-weak);
  line-height: 1.75;
  margin-bottom: 16px;
  flex-grow: 1;
}

/* ===== FAQ ===== */
.faq-section {
  background: linear-gradient(180deg, var(--bg), #eef1f7);
}

.faq-grid {
  max-width: 860px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.faq-item {
  background: var(--white);
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  transition: box-shadow 0.3s ease;
}

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

.faq-item details {
  padding: 24px 28px;
}

.faq-item summary {
  font-size: 16px;
  font-weight: 600;
  color: var(--deep);
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

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

.faq-item summary::after {
  content: "\f078";
  font-family: "Font Awesome 6 Free";
  font-weight: 900;
  font-size: 13px;
  color: var(--primary);
  transition: transform 0.3s ease;
  flex-shrink: 0;
}

.faq-item details[open] summary::after {
  transform: rotate(180deg);
}

.faq-item details p {
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
  font-size: 14.5px;
  color: var(--text-weak);
  line-height: 1.85;
}

/* ===== CTA Band ===== */
.cta-band {
  position: relative;
  padding: 90px 0;
  background: linear-gradient(120deg, var(--deep), var(--deep-2) 55%, #1a3a5f),
              url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  background-blend-mode: overlay;
  color: #fff;
  text-align: center;
  overflow: hidden;
}

.cta-band::before {
  content: "";
  position: absolute;
  left: -120px;
  bottom: -120px;
  width: 320px;
  height: 320px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 90, 46, 0.45), transparent 70%);
}

.cta-band::after {
  content: "";
  position: absolute;
  right: -60px;
  top: -60px;
  width: 200px;
  height: 200px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 138, 92, 0.25), transparent 70%);
}

.cta-band .container {
  position: relative;
  z-index: 2;
}

.cta-band h2 {
  font-size: 32px;
  font-weight: 800;
  margin-bottom: 14px;
  letter-spacing: 0.5px;
}

.cta-band p {
  font-size: 16px;
  color: rgba(255, 255, 255, 0.75);
  max-width: 620px;
  margin: 0 auto 30px;
  line-height: 1.8;
}

/* ===== Footer ===== */
.site-footer {
  background: #081725;
  color: #a8b6c8;
  padding: 68px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-brand .brand {
  margin-bottom: 16px;
}

.footer-brand p {
  font-size: 14.5px;
  line-height: 1.9;
  max-width: 380px;
}

.footer-col h4 {
  font-size: 16px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 18px;
}

.footer-col ul {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-col ul li a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14.5px;
  color: #a8b6c8;
  transition: all 0.25s ease;
}

.footer-col ul li a i {
  font-size: 10px;
  color: var(--primary-light);
}

.footer-col ul li a:hover {
  color: #fff;
  transform: translateX(3px);
}

.footer-bottom {
  padding: 22px 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  color: #7a8aa0;
}

.footer-bottom p {
  text-align: center;
}

/* ===== Status Strip ===== */
.status-strip {
  position: fixed;
  right: 20px;
  bottom: 20px;
  z-index: 900;
  background: rgba(11, 31, 51, 0.94);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 999px;
  padding: 10px 20px;
  display: flex;
  align-items: center;
  gap: 10px;
  color: #fff;
  font-size: 13px;
  font-weight: 500;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.28);
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #3ddc84;
  position: relative;
  flex-shrink: 0;
}

.status-dot::after {
  content: "";
  position: absolute;
  inset: -4px;
  border-radius: 50%;
  background: rgba(61, 220, 132, 0.3);
  animation: pulse 1.8s infinite;
}

@keyframes pulse {
  0% { transform: scale(0.7); opacity: 1; }
  100% { transform: scale(1.8); opacity: 0; }
}

.status-strip i {
  color: #3ddc84;
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  :root {
    --space: 60px;
  }

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

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

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

@media (max-width: 820px) {
  .nav-toggle {
    display: flex;
  }

  .main-nav {
    position: absolute;
    top: 76px;
    left: 0;
    right: 0;
    background: var(--deep);
    flex-direction: column;
    align-items: stretch;
    padding: 16px 24px 24px;
    gap: 6px;
    display: none;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
  }

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

  .main-nav .nav-link {
    padding: 14px 18px;
    border-radius: 12px;
  }

  .nav-cta {
    display: none;
  }
}

@media (max-width: 768px) {
  .container {
    padding: 0 20px;
  }

  .article-hero {
    padding: 64px 0 52px;
  }

  .article-hero-title {
    font-size: 26px;
  }

  .article-content-card {
    padding: 28px 20px;
  }

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

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

  .cta-band h2 {
    font-size: 25px;
  }

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

@media (max-width: 520px) {
  .brand-text {
    font-size: 16px;
  }

  .brand-icon {
    width: 36px;
    height: 36px;
    font-size: 17px;
    border-radius: 10px;
  }

  .nav-wrap {
    height: 66px;
    gap: 12px;
  }

  .main-nav {
    top: 66px;
  }

  .article-hero-title {
    font-size: 22px;
  }

  .article-hero-meta {
    gap: 12px;
    font-size: 13px;
  }

  .section-head h2 {
    font-size: 24px;
  }

  .cta-band {
    padding: 60px 0;
  }

  .cta-band h2 {
    font-size: 22px;
  }

  .cta-band p {
    font-size: 15px;
  }

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

  .status-strip {
    right: 12px;
    bottom: 12px;
    padding: 8px 16px;
    font-size: 12px;
  }

  .btn {
    padding: 10px 20px;
    font-size: 14px;
  }

  .article-content-card {
    padding: 22px 16px;
  }

  .article-body {
    font-size: 15px;
    line-height: 1.9;
  }

  .article-body h2 {
    font-size: 20px;
  }

  .article-body h3 {
    font-size: 18px;
  }
}

/* roulang page: category2 */
/* ===== 设计变量 ===== */
:root {
  --primary: #0b1a2e;
  --primary-light: #142b47;
  --primary-deep: #060f1c;
  --accent: #f0b90b;
  --accent-dark: #c99a08;
  --accent-light: #ffe58a;
  --bg: #f5f7fb;
  --bg-deep: #eaf0f7;
  --card: #ffffff;
  --text: #16213d;
  --text-body: #3e4e66;
  --text-muted: #8494ad;
  --border: #e2e9f3;
  --radius-sm: 8px;
  --radius: 14px;
  --radius-lg: 24px;
  --shadow-sm: 0 2px 10px rgba(8, 20, 40, 0.06);
  --shadow: 0 10px 34px rgba(8, 20, 40, 0.09);
  --shadow-lg: 0 24px 60px rgba(8, 20, 40, 0.14);
  --container: 1200px;
  --tr: all 0.3s ease;
}

/* ===== 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: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.7;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; transition: var(--tr); }
img { max-width: 100%; height: auto; display: block; }
button, input, select, textarea { font: inherit; color: inherit; }
ul, ol { list-style: none; }
.container { width: 100%; max-width: var(--container); margin: 0 auto; padding: 0 24px; }
.section { padding: 92px 0; position: relative; }
.section-alt { background: var(--bg-deep); }
.section-head { max-width: 720px; margin: 0 auto 56px; text-align: center; }
.section-tag {
  display: inline-block;
  background: rgba(240, 185, 11, 0.14);
  color: #a87f08;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 2px;
  padding: 6px 18px;
  border-radius: 40px;
  margin-bottom: 16px;
  text-transform: uppercase;
}
.section-title { font-size: 34px; font-weight: 800; line-height: 1.3; color: var(--text); letter-spacing: -0.5px; }
.section-desc { font-size: 16px; color: var(--text-body); margin-top: 14px; line-height: 1.8; }
.section-sub { font-size: 15px; color: var(--text-muted); margin-top: 6px; }

/* ===== 按钮 ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 15px;
  font-weight: 600;
  padding: 12px 26px;
  border-radius: 40px;
  border: 2px solid transparent;
  cursor: pointer;
  transition: var(--tr);
  white-space: nowrap;
  line-height: 1.4;
  background: transparent;
}
.btn i { font-size: 14px; }
.btn-primary {
  background: linear-gradient(135deg, var(--accent) 0%, #f7cf45 100%);
  color: #091428;
  border-color: transparent;
  box-shadow: 0 6px 20px rgba(240, 185, 11, 0.35);
}
.btn-primary:hover { transform: translateY(-3px); box-shadow: 0 12px 30px rgba(240, 185, 11, 0.45); background: linear-gradient(135deg, #f7cf45 0%, var(--accent) 100%); }
.btn-outline { border-color: rgba(255, 255, 255, 0.5); color: #fff; }
.btn-outline:hover { border-color: #fff; background: rgba(255, 255, 255, 0.1); transform: translateY(-2px); }
.btn-outline-dark { border-color: rgba(11, 26, 46, 0.25); color: var(--primary); }
.btn-outline-dark:hover { border-color: var(--primary); background: var(--primary); color: #fff; transform: translateY(-2px); }
.btn-lg { padding: 16px 38px; font-size: 16px; }
.btn:focus-visible { outline: 3px solid rgba(240, 185, 11, 0.5); outline-offset: 3px; }

/* ===== 徽章 ===== */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(255, 255, 255, 0.14);
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: #fff;
  font-size: 13px;
  font-weight: 600;
  padding: 6px 16px;
  border-radius: 40px;
  backdrop-filter: blur(6px);
}
.badge-dot { width: 8px; height: 8px; border-radius: 50%; background: #4be19b; box-shadow: 0 0 0 4px rgba(75, 225, 155, 0.2); }
.badge-gold { background: rgba(240, 185, 11, 0.18); border-color: rgba(240, 185, 11, 0.4); color: #e6b60c; }

/* ===== Header / Nav ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(8, 18, 32, 0.92);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.25);
}
.nav-wrap { display: flex; align-items: center; justify-content: space-between; height: 72px; gap: 20px; }
.brand { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.brand-icon {
  width: 40px; height: 40px;
  display: flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, var(--accent), #f7cf45);
  color: #091428;
  font-size: 20px;
  font-weight: 900;
  border-radius: 12px;
  box-shadow: 0 4px 14px rgba(240, 185, 11, 0.4);
}
.brand-text { font-size: 18px; font-weight: 800; color: #fff; letter-spacing: 0.5px; white-space: nowrap; }
.main-nav { display: flex; align-items: center; gap: 6px; }
.nav-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: rgba(255, 255, 255, 0.75);
  font-size: 15px;
  font-weight: 500;
  padding: 10px 16px;
  border-radius: 30px;
  transition: var(--tr);
  position: relative;
}
.nav-link:hover { color: #fff; background: rgba(255, 255, 255, 0.08); }
.nav-link.active { color: #091428; background: linear-gradient(135deg, var(--accent), #f7cf45); font-weight: 700; box-shadow: 0 4px 14px rgba(240, 185, 11, 0.3); }
.nav-cta { margin-left: 8px; padding: 10px 20px; font-size: 14px; }
.nav-toggle { display: none; background: none; border: none; color: #fff; font-size: 22px; cursor: pointer; padding: 8px; border-radius: 10px; }
.nav-toggle:hover { background: rgba(255, 255, 255, 0.1); }
.header-status {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(75, 225, 155, 0.12);
  border: 1px solid rgba(75, 225, 155, 0.25);
  color: #4be19b;
  font-size: 12px;
  font-weight: 600;
  padding: 5px 14px;
  border-radius: 30px;
  margin-right: 6px;
  white-space: nowrap;
}

/* ===== Banner ===== */
.page-banner {
  position: relative;
  padding: 130px 0 120px;
  background:
    linear-gradient(135deg, rgba(5, 14, 28, 0.94) 0%, rgba(8, 23, 45, 0.88) 45%, rgba(18, 38, 68, 0.78) 100%),
    url('/assets/images/backpic/back-1.png') center / cover no-repeat;
  color: #fff;
  overflow: hidden;
}
.page-banner::after {
  content: '';
  position: absolute;
  right: -120px;
  top: -120px;
  width: 460px;
  height: 460px;
  background: radial-gradient(circle, rgba(240, 185, 11, 0.15) 0%, transparent 70%);
  pointer-events: none;
}
.banner-inner { position: relative; z-index: 2; max-width: 860px; }
.banner-badges { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 26px; }
.banner-title { font-size: 52px; font-weight: 900; line-height: 1.2; letter-spacing: -1px; margin-bottom: 20px; }
.banner-title .txt-gold { color: var(--accent); }
.banner-desc { font-size: 18px; color: rgba(255, 255, 255, 0.8); line-height: 1.9; max-width: 700px; margin-bottom: 34px; }
.banner-actions { display: flex; flex-wrap: wrap; gap: 16px; align-items: center; }
.banner-meta { display: flex; flex-wrap: wrap; gap: 24px; margin-top: 44px; padding-top: 28px; border-top: 1px solid rgba(255, 255, 255, 0.15); }
.banner-meta-item { display: flex; align-items: center; gap: 10px; font-size: 14px; color: rgba(255, 255, 255, 0.75); }
.banner-meta-item i { color: var(--accent); font-size: 16px; }

/* ===== 核心服务卡片 ===== */
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 26px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 26px; }
.service-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  transition: var(--tr);
  position: relative;
  overflow: hidden;
}
.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--accent), #f7cf45, var(--accent));
  opacity: 0;
  transition: var(--tr);
}
.service-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-lg); }
.service-card:hover::before { opacity: 1; }
.service-icon {
  width: 64px;
  height: 64px;
  border-radius: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 26px;
  margin-bottom: 22px;
  background: linear-gradient(135deg, rgba(240, 185, 11, 0.15), rgba(240, 185, 11, 0.05));
  color: #b8860b;
}
.service-card h3 { font-size: 20px; font-weight: 700; margin-bottom: 12px; color: var(--text); }
.service-card p { font-size: 15px; color: var(--text-body); line-height: 1.8; }
.service-card .card-tag { display: inline-block; margin-top: 18px; font-size: 13px; font-weight: 600; color: var(--accent-dark); background: rgba(240, 185, 11, 0.1); padding: 4px 14px; border-radius: 30px; }

/* ===== 图文区块 ===== */
.feature-block {
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  align-items: center;
  gap: 70px;
}
.feature-media {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}
.feature-media img { width: 100%; height: 420px; object-fit: cover; transition: transform 0.8s ease; }
.feature-media:hover img { transform: scale(1.04); }
.feature-media::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 40%, rgba(5, 14, 28, 0.5));
  pointer-events: none;
}
.feature-media-card {
  position: absolute;
  right: 22px;
  bottom: 22px;
  left: 22px;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-radius: 16px;
  padding: 18px 22px;
  z-index: 2;
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.15);
}
.feature-media-card .count { font-size: 26px; font-weight: 800; color: var(--primary); }
.feature-media-card .label { font-size: 13px; color: var(--text-muted); margin-top: 2px; }
.feature-content .section-tag { margin-left: 0; }
.feature-content h2 { font-size: 34px; font-weight: 800; line-height: 1.3; margin-bottom: 20px; color: var(--text); }
.feature-content p { font-size: 16px; color: var(--text-body); line-height: 1.9; margin-bottom: 20px; }
.feature-list { margin: 24px 0 0; display: grid; gap: 14px; }
.feature-list li { display: flex; align-items: flex-start; gap: 12px; font-size: 15px; color: var(--text-body); }
.feature-list li i { color: var(--accent-dark); font-size: 18px; margin-top: 3px; }

/* ===== 流程步骤 ===== */
.steps-section { background: linear-gradient(135deg, rgba(6, 15, 30, 0.95), rgba(12, 30, 52, 0.92)), url('/assets/images/backpic/back-2.png') center / cover no-repeat; color: #fff; }
.steps-section .section-title { color: #fff; }
.steps-section .section-desc { color: rgba(255, 255, 255, 0.7); }
.steps-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 28px; }
.step-card {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  position: relative;
  backdrop-filter: blur(8px);
  transition: var(--tr);
}
.step-card:hover { background: rgba(255, 255, 255, 0.1); transform: translateY(-6px); box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3); }
.step-num {
  font-size: 44px;
  font-weight: 900;
  font-style: italic;
  background: linear-gradient(135deg, var(--accent), #f7cf45);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
  margin-bottom: 16px;
}
.step-card h3 { font-size: 18px; font-weight: 700; color: #fff; margin-bottom: 10px; }
.step-card p { font-size: 14px; color: rgba(255, 255, 255, 0.65); line-height: 1.8; }

/* ===== 资讯列表 ===== */
.news-card {
  background: var(--card);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border);
  transition: var(--tr);
  display: flex;
  flex-direction: column;
}
.news-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-lg); }
.news-media { position: relative; overflow: hidden; aspect-ratio: 16 / 10; }
.news-media img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.6s ease; }
.news-card:hover .news-media img { transform: scale(1.05); }
.news-media .mask { position: absolute; inset: 0; background: linear-gradient(180deg, transparent 50%, rgba(5, 14, 28, 0.35)); }
.news-date {
  position: absolute;
  left: 16px;
  bottom: 16px;
  background: rgba(255, 255, 255, 0.94);
  color: var(--primary);
  font-size: 12px;
  font-weight: 700;
  padding: 5px 12px;
  border-radius: 30px;
  z-index: 2;
}
.news-body { padding: 26px 26px 28px; display: flex; flex-direction: column; flex: 1; }
.news-body h3 { font-size: 17px; font-weight: 700; color: var(--text); margin-bottom: 10px; line-height: 1.5; }
.news-body p { font-size: 14px; color: var(--text-muted); line-height: 1.8; margin-bottom: 18px; flex: 1; }
.news-link { font-size: 14px; font-weight: 600; color: var(--accent-dark); display: inline-flex; align-items: center; gap: 6px; }
.news-link i { transition: transform 0.3s ease; }
.news-link:hover i { transform: translateX(4px); }
.cms-slot { min-height: 0; }

/* ===== 数据指标 ===== */
.stats-band { background: var(--primary); padding: 70px 0; position: relative; overflow: hidden; }
.stats-band::before {
  content: '';
  position: absolute;
  left: 20%;
  top: -60px;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(240, 185, 11, 0.12) 0%, transparent 70%);
}
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 30px; text-align: center; position: relative; z-index: 2; }
.stat-item .stat-num { font-size: 46px; font-weight: 900; background: linear-gradient(135deg, var(--accent), #f7cf45); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; line-height: 1.2; }
.stat-item .stat-label { margin-top: 8px; font-size: 15px; color: rgba(255, 255, 255, 0.7); }
.stat-item .stat-suffix { font-size: 30px; }

/* ===== FAQ ===== */
.faq-wrap { max-width: 860px; margin: 0 auto; display: grid; gap: 14px; }
.faq-item {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: var(--tr);
}
.faq-item:hover { border-color: rgba(240, 185, 11, 0.4); box-shadow: var(--shadow-sm); }
.faq-item.open { box-shadow: var(--shadow); border-color: rgba(240, 185, 11, 0.5); }
.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 22px 24px;
  background: none;
  border: none;
  cursor: pointer;
  text-align: left;
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  transition: var(--tr);
}
.faq-question .faq-icon { margin-left: auto; font-size: 16px; color: var(--accent-dark); transition: transform 0.4s ease; flex-shrink: 0; }
.faq-item.open .faq-icon { transform: rotate(180deg); }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height 0.4s ease; }
.faq-answer p { padding: 0 24px 22px; font-size: 15px; color: var(--text-body); line-height: 1.9; }

/* ===== CTA ===== */
.cta-band {
  position: relative;
  padding: 100px 0;
  background: linear-gradient(135deg, rgba(6, 15, 30, 0.92), rgba(20, 42, 70, 0.85)), url('/assets/images/backpic/back-3.png') center / cover no-repeat;
  color: #fff;
  text-align: center;
}
.cta-band h2 { font-size: 40px; font-weight: 900; margin-bottom: 18px; letter-spacing: -1px; }
.cta-band p { font-size: 17px; color: rgba(255, 255, 255, 0.78); max-width: 640px; margin: 0 auto 36px; line-height: 1.9; }
.cta-actions { display: flex; flex-wrap: wrap; gap: 16px; justify-content: center; }
.cta-note { margin-top: 28px; font-size: 13px; color: rgba(255, 255, 255, 0.5); }

/* ===== Footer ===== */
.site-footer { background: var(--primary-deep); color: rgba(255, 255, 255, 0.7); padding: 80px 0 0; }
.footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr; gap: 60px; padding-bottom: 50px; border-bottom: 1px solid rgba(255, 255, 255, 0.08); }
.footer-brand .brand { margin-bottom: 18px; }
.footer-brand p { font-size: 14px; line-height: 1.8; max-width: 380px; }
.footer-col h4 { color: #fff; font-size: 16px; font-weight: 700; margin-bottom: 20px; }
.footer-col ul { display: grid; gap: 12px; }
.footer-col a { display: inline-flex; align-items: center; gap: 8px; font-size: 14px; color: rgba(255, 255, 255, 0.65); }
.footer-col a i { font-size: 12px; color: var(--accent); transition: transform 0.3s ease; }
.footer-col a:hover { color: #fff; }
.footer-col a:hover i { transform: translateX(3px); }
.footer-bottom { display: flex; align-items: center; justify-content: space-between; padding: 24px 0; flex-wrap: wrap; gap: 12px; }
.footer-bottom p { font-size: 13px; color: rgba(255, 255, 255, 0.35); }
.footer-bottom .links { display: flex; gap: 20px; }
.footer-bottom .links a { font-size: 13px; color: rgba(255, 255, 255, 0.35); }
.footer-bottom .links a:hover { color: var(--accent); }

/* ===== 面包屑 ===== */
.crumbs { display: flex; align-items: center; gap: 8px; font-size: 13px; color: rgba(255, 255, 255, 0.6); margin-bottom: 20px; }
.crumbs a { color: rgba(255, 255, 255, 0.6); }
.crumbs a:hover { color: var(--accent); }
.crumbs .sep { color: rgba(255, 255, 255, 0.3); }
.crumbs .cur { color: var(--accent); }

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
  .nav-cta, .header-status { display: none; }
  .main-nav {
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    background: rgba(8, 18, 32, 0.97);
    flex-direction: column;
    align-items: stretch;
    padding: 20px 24px 30px;
    gap: 6px;
    transform: translateY(-140%);
    transition: transform 0.4s ease;
    box-shadow: 0 30px 50px rgba(0, 0, 0, 0.3);
    z-index: 999;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(18px);
  }
  .main-nav.open { transform: translateY(0); }
  .nav-link { padding: 16px 20px; font-size: 16px; border-radius: var(--radius); }
  .nav-toggle { display: block; }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .steps-grid { grid-template-columns: repeat(2, 1fr); }
  .feature-block { grid-template-columns: 1fr; gap: 40px; }
  .feature-media img { height: 340px; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 40px 20px; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 40px; }
  .banner-title { font-size: 40px; }
}

@media (max-width: 768px) {
  .section { padding: 70px 0; }
  .container { padding: 0 18px; }
  .page-banner { padding: 90px 0 80px; }
  .banner-title { font-size: 34px; }
  .banner-desc { font-size: 16px; }
  .banner-actions { flex-direction: column; align-items: stretch; }
  .banner-actions .btn { width: 100%; }
  .grid-4, .grid-3, .grid-2 { grid-template-columns: 1fr; }
  .steps-grid { grid-template-columns: 1fr; }
  .feature-media img { height: 260px; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .stat-item .stat-num { font-size: 36px; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .section-title { font-size: 28px; }
  .cta-band h2 { font-size: 30px; }
  .brand-text { font-size: 16px; }
}

@media (max-width: 520px) {
  .banner-title { font-size: 28px; }
  .banner-meta { flex-direction: column; gap: 12px; }
  .stats-grid { grid-template-columns: 1fr; }
  .header-status { display: none; }
  .service-card { padding: 28px 22px; }
}