/* roulang page: index */
/* ===================== 设计变量 ===================== */
:root {
  --primary: #2E6EE8;
  --primary-hover: #1F56C4;
  --accent: #FF7A2F;
  --accent-hover: #E8641A;
  --bg: #F5F7FB;
  --white: #FFFFFF;
  --dark-bg: #1B2A47;
  --dark-footer: #16233B;
  --text-main: #15233B;
  --text-sub: #5A6B85;
  --text-aux: #8A97AC;
  --border: #E3E9F1;
  --radius-card: 14px;
  --radius-btn: 10px;
  --radius-img: 12px;
  --radius-icon: 40px;
  --shadow-card: 0 4px 16px rgba(21,35,59,0.06);
  --shadow-hover: 0 8px 24px rgba(21,35,59,0.1);
  --space-section: 84px;
  --max-width: 1200px;
  --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ===================== Reset / Base ===================== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}
body {
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", -apple-system, BlinkMacSystemFont, Arial, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: var(--text-main);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; transition: color var(--transition); }
ul, ol { list-style: none; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }
input, textarea { font-family: inherit; outline: none; }
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}
@media screen and (max-width: 640px) {
  .container { padding: 0 16px; }
}

/* ===================== 按钮 ===================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: var(--radius-btn);
  font-size: 15px;
  font-weight: 600;
  line-height: 1.4;
  transition: all var(--transition);
  border: 2px solid transparent;
  white-space: nowrap;
}
.btn:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 3px;
}
.btn-primary {
  background: var(--primary);
  color: #fff;
}
.btn-primary:hover {
  background: var(--primary-hover);
  transform: translateY(-2px);
  box-shadow: var(--shadow-hover);
}
.btn-primary:active {
  transform: translateY(0);
}
.btn-outline {
  background: #fff;
  border-color: var(--primary);
  color: var(--primary);
}
.btn-outline:hover {
  background: #EFF4FE;
  transform: translateY(-2px);
}
.btn-accent {
  background: var(--accent);
  color: #fff;
}
.btn-accent:hover {
  background: var(--accent-hover);
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(255,122,47,0.3);
}
.btn-sm {
  padding: 8px 18px;
  font-size: 13px;
  border-radius: 8px;
}
.btn-lg {
  padding: 14px 40px;
  font-size: 16px;
}

/* ===================== Header ===================== */
.site-header {
  background: #fff;
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: 0 1px 4px rgba(21,35,59,0.04);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  gap: 24px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.logo-icon {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, #3B82F6, #1F56C4);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 18px;
  box-shadow: 0 4px 12px rgba(46,110,232,0.3);
}
.logo-text {
  font-size: 20px;
  font-weight: 700;
  color: var(--text-main);
  letter-spacing: 0.5px;
}
.main-nav {
  display: flex;
  align-items: center;
  gap: 32px;
}
.nav-link {
  font-size: 15px;
  font-weight: 500;
  color: var(--text-sub);
  position: relative;
  padding: 8px 0;
  transition: color var(--transition);
}
.nav-link::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 3px;
  background: var(--primary);
  border-radius: 3px;
  transition: width var(--transition);
}
.nav-link:hover {
  color: var(--primary);
}
.nav-link.active {
  color: var(--primary);
  font-weight: 600;
}
.nav-link.active::after {
  width: 100%;
}
.header-right {
  display: flex;
  align-items: center;
  gap: 16px;
}
.search-box {
  position: relative;
  width: 180px;
}
.search-box input {
  width: 100%;
  height: 38px;
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 0 16px 0 38px;
  font-size: 13px;
  background: var(--bg);
  transition: all var(--transition);
}
.search-box input::placeholder {
  color: var(--text-aux);
}
.search-box input:focus {
  border-color: var(--primary);
  background: #fff;
  box-shadow: 0 0 0 4px rgba(46,110,232,0.1);
}
.search-box i {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 14px;
  color: var(--text-aux);
  pointer-events: none;
}
.login-link {
  font-size: 14px;
  color: var(--text-sub);
  font-weight: 500;
  padding: 6px 0;
}
.login-link:hover {
  color: var(--primary);
}
.hamburger {
  display: none;
  width: 40px;
  height: 40px;
  border-radius: 10px;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  background: var(--bg);
  transition: background var(--transition);
}
.hamburger span {
  width: 20px;
  height: 2px;
  background: var(--text-main);
  border-radius: 2px;
  transition: all 0.3s;
}
.hamburger:hover {
  background: #EFF4FE;
}
.hamburger.open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.hamburger.open span:nth-child(2) {
  opacity: 0;
}
.hamburger.open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ===================== 倒计时条 ===================== */
.countdown-bar {
  background: var(--dark-bg);
  color: #fff;
  padding: 8px 0;
  min-height: 56px;
  display: flex;
  align-items: center;
}
.countdown-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}
.countdown-left {
  display: flex;
  align-items: center;
  gap: 18px;
  flex-wrap: wrap;
}
.countdown-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 600;
  color: rgba(255,255,255,0.9);
}
.countdown-label i {
  color: var(--accent);
}
.countdown-timer {
  display: flex;
  align-items: center;
  gap: 8px;
}
.cd-block {
  display: flex;
  align-items: center;
  gap: 4px;
  background: #fff;
  padding: 6px 10px;
  border-radius: 8px;
  box-shadow: 0 2px 6px rgba(0,0,0,0.15);
}
.cd-num {
  font-size: 20px;
  font-weight: 800;
  color: var(--primary);
  font-variant-numeric: tabular-nums;
  min-width: 26px;
  text-align: center;
}
.cd-text {
  font-size: 12px;
  color: var(--text-sub);
  font-weight: 500;
}
.countdown-right .btn {
  box-shadow: 0 4px 10px rgba(255,122,47,0.3);
}

/* ===================== Hero ===================== */
.hero-section {
  background:
    linear-gradient(180deg, #EAF1FE 0%, var(--bg) 100%);
  padding: 72px 0 84px;
  overflow: hidden;
}
.hero-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
}
.hero-content {
  max-width: 480px;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: #EFF4FE;
  color: var(--primary);
  font-size: 13px;
  font-weight: 600;
  padding: 6px 14px;
  border-radius: 20px;
  margin-bottom: 20px;
  border: 1px solid rgba(46,110,232,0.15);
}
.hero-badge i {
  font-size: 14px;
}
.hero-content h1 {
  font-size: 38px;
  line-height: 1.28;
  font-weight: 800;
  color: var(--text-main);
  margin-bottom: 18px;
  letter-spacing: -0.5px;
}
.hero-content h1 span {
  color: var(--primary);
}
.hero-sub {
  font-size: 17px;
  line-height: 1.7;
  color: var(--text-sub);
  margin-bottom: 32px;
}
.hero-cta {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}
.hero-visual {
  position: relative;
}
.hero-visual img {
  width: 100%;
  border-radius: 16px;
  box-shadow: 0 16px 48px rgba(46,110,232,0.18);
  transition: transform 0.4s;
}
.hero-visual:hover img {
  transform: scale(1.02);
}
.hero-float-card {
  position: absolute;
  bottom: 20px;
  left: -20px;
  background: rgba(255,255,255,0.96);
  backdrop-filter: blur(10px);
  border-radius: 14px;
  padding: 14px 20px;
  box-shadow: var(--shadow-hover);
  display: flex;
  align-items: center;
  gap: 12px;
  border: 1px solid rgba(255,255,255,0.8);
}
.hero-float-icon {
  width: 40px;
  height: 40px;
  background: #FFF3EC;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  font-size: 18px;
}
.hero-float-text b {
  display: block;
  font-size: 15px;
  color: var(--text-main);
}
.hero-float-text span {
  font-size: 12px;
  color: var(--text-aux);
}

/* ===================== Section 通用 ===================== */
.section {
  padding: var(--space-section) 0;
}
.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 40px;
}
.section-title {
  font-size: 28px;
  font-weight: 800;
  color: var(--text-main);
  line-height: 1.3;
  position: relative;
  padding-left: 18px;
}
.section-title::before {
  content: "";
  position: absolute;
  left: 0;
  top: 4px;
  bottom: 4px;
  width: 5px;
  border-radius: 4px;
  background: var(--primary);
}
.section-desc {
  font-size: 14px;
  color: var(--text-aux);
  max-width: 320px;
  text-align: right;
  line-height: 1.6;
}

/* ===================== 卖点卡片 ===================== */
.features-section {
  background: #fff;
  padding: var(--space-section) 0;
  border-bottom: 1px solid var(--border);
}
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.feature-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  padding: 36px 28px;
  transition: all 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), #7CA5F5);
  opacity: 0;
  transition: opacity var(--transition);
}
.feature-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-4px);
  border-color: transparent;
}
.feature-card:hover::before {
  opacity: 1;
}
.feature-icon {
  width: 48px;
  height: 48px;
  background: #EFF4FE;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  color: var(--primary);
  margin-bottom: 20px;
  transition: all var(--transition);
}
.feature-card:hover .feature-icon {
  background: var(--primary);
  color: #fff;
  transform: rotate(-6deg) scale(1.05);
}
.feature-card h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 10px;
}
.feature-card p {
  font-size: 14px;
  line-height: 1.7;
  color: var(--text-sub);
}

/* ===================== 图墙 ===================== */
.gallery-section {
  padding: var(--space-section) 0;
}
.gallery-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 24px;
}
.gallery-main,
.gallery-item {
  position: relative;
  border-radius: var(--radius-card);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  transition: box-shadow var(--transition);
}
.gallery-main:hover,
.gallery-item:hover {
  box-shadow: var(--shadow-hover);
}
.gallery-main img,
.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.gallery-main:hover img,
.gallery-item:hover img {
  transform: scale(1.04);
}
.gallery-main {
  min-height: 360px;
}
.gallery-side {
  display: grid;
  grid-template-rows: 1fr 1fr;
  gap: 24px;
}
.gallery-item {
  min-height: 168px;
}
.gallery-caption {
  position: absolute;
  bottom: 14px;
  left: 14px;
  right: 14px;
  background: rgba(255,255,255,0.88);
  backdrop-filter: blur(8px);
  padding: 10px 16px;
  border-radius: 10px;
  display: flex;
  flex-direction: column;
  border: 1px solid rgba(255,255,255,0.6);
}
.gallery-caption .gallery-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-main);
}
.gallery-caption .gallery-sub {
  font-size: 12px;
  color: var(--text-sub);
  margin-top: 2px;
}

/* ===================== CTA ===================== */
.cta-section {
  background: #EAF1FE;
  padding: 76px 20px;
  text-align: center;
  border-top: 1px solid rgba(46,110,232,0.1);
  border-bottom: 1px solid rgba(46,110,232,0.1);
}
.cta-section h2 {
  font-size: 28px;
  font-weight: 800;
  color: var(--text-main);
  margin-bottom: 12px;
}
.cta-section p {
  font-size: 15px;
  color: var(--text-sub);
  max-width: 500px;
  margin: 0 auto 32px;
  line-height: 1.7;
}
.cta-buttons {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ===================== 资讯列表 ===================== */
.news-section {
  background: #fff;
  padding: var(--space-section) 0;
  border-bottom: 1px solid var(--border);
}
.news-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.news-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px 24px;
  transition: all var(--transition);
}
.news-item:hover {
  background: #EDF3FE;
  transform: translateX(4px);
  border-color: rgba(46,110,232,0.25);
  box-shadow: 0 4px 14px rgba(46,110,232,0.08);
}
.news-info {
  flex: 1;
  min-width: 0;
}
.news-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 4px;
  line-height: 1.5;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  transition: color var(--transition);
}
.news-item:hover .news-title {
  color: var(--primary);
}
.news-summary {
  font-size: 14px;
  color: var(--text-sub);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.news-meta {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 8px;
  flex-shrink: 0;
}
.news-category {
  display: inline-block;
  background: #EFF4FE;
  color: var(--primary);
  font-size: 12px;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 14px;
}
.news-time {
  font-size: 12px;
  color: var(--text-aux);
}
.news-arrow {
  color: var(--text-aux);
  font-size: 16px;
  flex-shrink: 0;
  transition: all var(--transition);
}
.news-item:hover .news-arrow {
  color: var(--primary);
  transform: translateX(4px);
}
.empty-state {
  text-align: center;
  padding: 48px 20px;
  background: var(--bg);
  border-radius: 14px;
  border: 1px dashed var(--border);
}
.empty-state i {
  font-size: 36px;
  color: var(--text-aux);
  margin-bottom: 12px;
}
.empty-state p {
  font-size: 14px;
  color: var(--text-aux);
}

/* ===================== FAQ ===================== */
.faq-section {
  padding: var(--space-section) 0;
}
.faq-wrap {
  max-width: 820px;
  margin: 0 auto;
}
.faq-item {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 12px;
  margin-bottom: 14px;
  overflow: hidden;
  transition: box-shadow var(--transition);
}
.faq-item.active {
  box-shadow: var(--shadow-card);
  border-color: rgba(46,110,232,0.3);
}
.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 24px;
  cursor: pointer;
  background: #fff;
  font-size: 16px;
  font-weight: 600;
  color: var(--text-main);
  transition: background var(--transition);
}
.faq-question:hover {
  background: #F8FAFE;
}
.faq-question .icon {
  font-size: 20px;
  color: var(--primary);
  flex-shrink: 0;
  transition: transform 0.35s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: #EFF4FE;
}
.faq-item.active .faq-question .icon {
  transform: rotate(45deg);
  background: var(--primary);
  color: #fff;
}
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease;
}
.faq-answer-inner {
  padding: 0 24px 20px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--text-sub);
}

/* ===================== 页脚 ===================== */
.site-footer {
  background: var(--dark-footer);
  color: rgba(255,255,255,0.8);
  padding: 64px 0 32px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 0.8fr 1fr;
  gap: 48px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.footer-brand .logo-text {
  color: #fff;
}
.footer-desc {
  font-size: 14px;
  line-height: 1.7;
  color: rgba(255,255,255,0.6);
  margin-top: 16px;
  max-width: 340px;
}
.footer-title {
  font-size: 16px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 20px;
}
.footer-links {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.footer-links a {
  font-size: 14px;
  color: rgba(255,255,255,0.6);
  transition: all var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.footer-links a:hover {
  color: #fff;
  padding-left: 4px;
}
.footer-links a i {
  font-size: 12px;
  color: var(--accent);
}
.footer-contact {
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.footer-contact-item {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 14px;
  color: rgba(255,255,255,0.6);
}
.footer-contact-item i {
  width: 16px;
  color: var(--accent);
  text-align: center;
}
.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding-top: 24px;
  font-size: 13px;
  color: rgba(255,255,255,0.45);
  flex-wrap: wrap;
}
.footer-bottom a {
  color: rgba(255,255,255,0.45);
}
.footer-bottom a:hover {
  color: #fff;
}

/* ===================== 响应式 ===================== */
@media screen and (max-width: 1024px) {
  .hero-inner {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .hero-content {
    max-width: 100%;
    text-align: center;
  }
  .hero-cta {
    justify-content: center;
  }
  .hero-visual img {
    max-height: 420px;
    object-fit: cover;
  }
  .features-grid {
    grid-template-columns: 1fr;
    max-width: 640px;
    margin: 0 auto;
  }
  .gallery-grid {
    grid-template-columns: 1fr;
  }
  .gallery-main {
    min-height: 300px;
  }
  .gallery-side {
    grid-template-columns: 1fr 1fr;
    grid-template-rows: none;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 36px;
  }
}
@media screen and (max-width: 768px) {
  :root {
    --space-section: 56px;
  }
  .header-inner {
    height: 64px;
  }
  .main-nav {
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    background: #fff;
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    padding: 12px 24px;
    box-shadow: 0 8px 24px rgba(21,35,59,0.1);
    border-bottom: 1px solid var(--border);
    transform: translateY(-120%);
    opacity: 0;
    transition: all 0.35s ease;
    z-index: 999;
  }
  .main-nav.open {
    transform: translateY(0);
    opacity: 1;
  }
  .nav-link {
    padding: 14px 0;
    width: 100%;
    border-bottom: 1px solid var(--border);
  }
  .nav-link::after {
    display: none;
  }
  .nav-link.active {
    background: #F0F5FF;
    padding-left: 12px;
    border-radius: 6px;
    width: 100%;
  }
  .search-box {
    display: none;
  }
  .login-link {
    display: none;
  }
  .hamburger {
    display: flex;
  }
  .countdown-inner {
    flex-wrap: wrap;
    justify-content: center;
    gap: 10px;
    padding: 10px 0;
  }
  .countdown-right {
    width: 100%;
    text-align: center;
  }
  .hero-content h1 {
    font-size: 30px;
  }
  .hero-sub {
    font-size: 15px;
  }
  .section-head {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }
  .section-desc {
    text-align: left;
  }
  .gallery-side {
    grid-template-columns: 1fr;
  }
  .news-item {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }
  .news-meta {
    flex-direction: row;
    align-items: center;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
}
@media screen and (max-width: 520px) {
  .hero-cta {
    flex-direction: column;
    gap: 12px;
  }
  .hero-cta .btn {
    width: 100%;
  }
  .hero-float-card {
    left: 12px;
    right: 12px;
    bottom: 12px;
  }
  .gallery-caption {
    padding: 8px 12px;
  }
  .gallery-caption .gallery-title {
    font-size: 14px;
  }
  .faq-question {
    padding: 16px 18px;
    font-size: 15px;
  }
  .faq-answer-inner {
    padding: 0 18px 16px;
  }
  .cta-section {
    padding: 48px 16px;
  }
  .cta-section h2 {
    font-size: 24px;
  }
  .btn-lg {
    width: 100%;
    max-width: 260px;
  }
}

/* roulang page: article */
:root {
  --primary: #2E6EE8;
  --primary-hover: #1F56C4;
  --accent: #FF7A2F;
  --accent-hover: #E8641A;
  --bg: #F5F7FB;
  --white: #FFFFFF;
  --text: #15233B;
  --text-secondary: #5A6B85;
  --text-muted: #8A97AC;
  --border: #E3E9F1;
  --dark: #1B2A47;
  --dark-footer: #16233B;
  --radius-card: 14px;
  --radius-btn: 10px;
  --radius-img: 12px;
  --shadow-card: 0 4px 16px rgba(21,35,59,0.06);
  --shadow-hover: 0 8px 24px rgba(21,35,59,0.1);
  --space-section: 80px;
  --header-height: 72px;
  --font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
}

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

html { scroll-behavior: smooth; }

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

img { max-width: 100%; display: block; }
a { color: var(--primary); text-decoration: none; transition: color 0.2s ease; }
a:hover { color: var(--primary-hover); }
button { font-family: inherit; cursor: pointer; }
input, textarea { font-family: inherit; }

.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; width: 100%; }

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 15px;
  font-weight: 600;
  line-height: 1;
  padding: 12px 28px;
  border-radius: var(--radius-btn);
  border: 1px solid transparent;
  transition: all 0.25s ease;
  text-align: center;
  white-space: nowrap;
}
.btn i { font-size: 14px; }
.btn:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; }

.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-hover); color: #fff; transform: translateY(-1px); box-shadow: var(--shadow-hover); }

.btn-accent { background: var(--accent); color: #fff; }
.btn-accent:hover { background: var(--accent-hover); color: #fff; transform: translateY(-1px); box-shadow: 0 8px 24px rgba(255,122,47,0.25); }

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

.btn-outline-light { background: transparent; border-color: rgba(255,255,255,0.7); color: #fff; }
.btn-outline-light:hover { background: rgba(255,255,255,0.12); color: #fff; border-color: #fff; }

.btn-sm { padding: 9px 20px; font-size: 14px; }

/* ===== Header / Nav ===== */
.site-header {
  background: var(--white);
  height: var(--header-height);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 1px 8px rgba(21,35,59,0.04);
}

.header-row {
  height: var(--header-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.logo-icon {
  width: 38px; height: 38px;
  background: linear-gradient(135deg, var(--primary) 0%, #5AA0FF 100%);
  border-radius: 10px;
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  box-shadow: 0 4px 12px rgba(46,110,232,0.3);
}
.logo-text { font-size: 20px; font-weight: 700; color: var(--text); letter-spacing: 0.5px; }

.main-nav {
  display: flex;
  align-items: center;
  gap: 6px;
  margin: 0 12px;
}
.nav-link {
  position: relative;
  padding: 26px 18px 22px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-secondary);
  border-bottom: 3px solid transparent;
  transition: color 0.2s ease;
  line-height: 1;
}
.nav-link:hover { color: var(--primary); }
.nav-link.active { color: var(--primary); font-weight: 600; border-bottom-color: var(--primary); }
.nav-link.active::after {
  content: "";
  position: absolute;
  left: 14px; right: 14px; bottom: 0;
  height: 0;
  border-radius: 3px 3px 0 0;
  background: var(--primary);
}
.nav-link.active:hover::after { display: none; }

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

.search-box {
  position: relative;
  width: 180px;
}
.search-input {
  width: 100%;
  height: 38px;
  padding: 0 38px 0 14px;
  border: 1px solid var(--border);
  border-radius: 19px;
  font-size: 13px;
  color: var(--text);
  background: var(--bg);
  transition: all 0.2s ease;
}
.search-input:focus {
  outline: none;
  border-color: var(--primary);
  background: #fff;
  box-shadow: 0 0 0 3px rgba(46,110,232,0.12);
}
.search-input::placeholder { color: var(--text-muted); }
.search-btn {
  position: absolute;
  right: 4px; top: 50%;
  transform: translateY(-50%);
  width: 32px; height: 32px;
  border: none;
  background: transparent;
  color: var(--text-muted);
  font-size: 14px;
  border-radius: 50%;
  transition: all 0.2s ease;
}
.search-btn:hover { color: var(--primary); background: rgba(46,110,232,0.08); }

.btn-login {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  padding: 6px 10px;
  border-radius: 8px;
  transition: all 0.2s ease;
  background: none;
  border: none;
}
.btn-login:hover { color: var(--primary); background: rgba(46,110,232,0.06); }

.hamburger {
  display: none;
  width: 40px; height: 40px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--white);
  color: var(--text);
  font-size: 17px;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
}
.hamburger:hover { border-color: var(--primary); color: var(--primary); }

/* ===== Breadcrumb ===== */
.breadcrumb {
  padding: 18px 0;
  background: var(--white);
  border-bottom: 1px solid var(--border);
  font-size: 13px;
  color: var(--text-muted);
}
.breadcrumb .container { display: flex; align-items: center; flex-wrap: wrap; gap: 8px; }
.breadcrumb a { color: var(--text-muted); }
.breadcrumb a:hover { color: var(--primary); }
.breadcrumb-sep { color: var(--border); }
.breadcrumb-current { color: var(--text-secondary); font-weight: 500; max-width: 60%; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* ===== Article Main ===== */
.article-main { padding: 48px 0 64px; }

.article-card {
  background: var(--white);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
  padding: 48px 56px 40px;
  max-width: 880px;
  margin: 0 auto;
}

.article-title {
  font-size: 32px;
  font-weight: 700;
  line-height: 1.4;
  color: var(--text);
  margin-bottom: 20px;
}

.article-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 18px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 32px;
  font-size: 14px;
  color: var(--text-muted);
}
.meta-item { display: inline-flex; align-items: center; gap: 6px; }
.meta-item i { color: var(--primary); font-size: 13px; }

.article-body { max-width: 760px; margin: 0 auto; font-size: 16px; line-height: 1.8; color: var(--text-secondary); }
.article-body > * { margin-bottom: 16px; }
.article-body h2 { font-size: 24px; color: var(--text); font-weight: 700; margin: 36px 0 16px; padding-left: 14px; border-left: 4px solid var(--primary); line-height: 1.5; }
.article-body h3 { font-size: 20px; color: var(--text); font-weight: 600; margin: 28px 0 12px; }
.article-body p { line-height: 1.8; }
.article-body strong { color: var(--text); font-weight: 600; }
.article-body a { color: var(--primary); border-bottom: 1px solid rgba(46,110,232,0.3); }
.article-body a:hover { border-bottom-color: var(--primary-hover); }
.article-body img { border-radius: 10px; margin: 24px 0; box-shadow: var(--shadow-card); }
.article-body blockquote {
  border-left: 4px solid var(--primary);
  background: rgba(46,110,232,0.05);
  padding: 16px 20px;
  border-radius: 0 10px 10px 0;
  color: var(--text-secondary);
  margin: 24px 0;
  font-style: normal;
}
.article-body ul, .article-body ol { padding-left: 24px; margin: 16px 0; }
.article-body li { margin-bottom: 8px; }
.article-body code {
  background: #EEF2F8;
  padding: 2px 8px;
  border-radius: 6px;
  font-size: 14px;
  color: #D24726;
  font-family: "SFMono-Regular", Consolas, monospace;
}

/* ===== Article Tags ===== */
.article-tags {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 36px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
}
.article-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(46,110,232,0.08);
  color: var(--primary);
  font-size: 13px;
  font-weight: 500;
  padding: 6px 14px;
  border-radius: 20px;
  transition: all 0.2s ease;
}
.article-tag:hover { background: var(--primary); color: #fff; }
.article-tag.static { background: var(--bg); color: var(--text-secondary); cursor: default; }
.article-tag.static:hover { background: var(--bg); color: var(--text-secondary); }

/* ===== Article Pager ===== */
.article-pager {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-top: 32px;
  padding-top: 28px;
  border-top: 1px solid var(--border);
}
.pager-link {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 4px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  padding: 16px 20px;
  transition: all 0.25s ease;
}
.pager-link:hover {
  background: rgba(46,110,232,0.04);
  border-color: var(--primary);
  transform: translateY(-2px);
  box-shadow: var(--shadow-hover);
}
.pager-link.pager-next { align-items: flex-end; text-align: right; }
.pager-label { font-size: 12px; color: var(--text-muted); display: flex; align-items: center; gap: 6px; }
.pager-next .pager-label { justify-content: flex-end; }
.pager-title { font-size: 15px; font-weight: 600; color: var(--text); }

.article-return {
  margin-top: 32px;
  text-align: center;
}

/* ===== Article Empty ===== */
.article-empty { text-align: center; padding: 60px 20px; }
.article-empty .fa-file-alt {
  font-size: 52px;
  color: var(--text-muted);
  opacity: 0.4;
  margin-bottom: 16px;
}
.article-empty .article-title { font-size: 28px; margin-bottom: 12px; }
.article-empty p { color: var(--text-secondary); margin-bottom: 28px; }

/* ===== Related Section ===== */
.related-section { padding: 64px 0; background: var(--bg); }

.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 32px;
}
.section-title {
  font-size: 28px;
  font-weight: 700;
  color: var(--text);
  position: relative;
  padding-left: 16px;
}
.section-title::before {
  content: "";
  position: absolute;
  left: 0; top: 50%;
  transform: translateY(-50%);
  width: 4px; height: 22px;
  background: var(--primary);
  border-radius: 3px;
}
.section-more {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: all 0.2s ease;
}
.section-more:hover { color: var(--primary); gap: 10px; }

.related-card {
  display: block;
  background: var(--white);
  border-radius: var(--radius-card);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  transition: all 0.3s ease;
  height: 100%;
  border: 1px solid var(--border);
}
.related-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}
.related-img { position: relative; overflow: hidden; height: 180px; }
.related-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.4s ease; }
.related-card:hover .related-img img { transform: scale(1.04); }
.related-info { padding: 18px 20px; }
.related-info h3 { font-size: 16px; font-weight: 600; color: var(--text); margin-bottom: 8px; line-height: 1.5; }
.related-card:hover .related-info h3 { color: var(--primary); }
.related-time { font-size: 12px; color: var(--text-muted); display: flex; align-items: center; gap: 6px; }

/* ===== CTA Section ===== */
.cta-section { padding: 64px 0; background: var(--white); }
.cta-box {
  background: linear-gradient(135deg, #EAF1FE 0%, #F5F9FF 100%);
  border: 1px solid rgba(46,110,232,0.12);
  border-radius: 20px;
  padding: 64px 32px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.cta-box h2 { font-size: 26px; font-weight: 700; color: var(--text); margin-bottom: 12px; }
.cta-box p { font-size: 14px; color: var(--text-secondary); margin-bottom: 32px; max-width: 560px; margin-left: auto; margin-right: auto; }
.cta-actions { display: flex; justify-content: center; gap: 16px; flex-wrap: wrap; }

/* ===== Footer ===== */
.site-footer {
  background: var(--dark-footer);
  color: rgba(255,255,255,0.7);
  padding: 64px 0 24px;
  font-size: 14px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 0.8fr 1fr;
  gap: 48px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.footer-brand .logo { margin-bottom: 16px; }
.footer-brand .logo-icon { background: rgba(255,255,255,0.1); color: #fff; box-shadow: none; }
.footer-brand .logo-text { color: #fff; }
.footer-desc { font-size: 13px; line-height: 1.8; color: rgba(255,255,255,0.55); max-width: 320px; }
.footer-title {
  font-size: 15px;
  font-weight: 600;
  color: #fff;
  margin-bottom: 18px;
  position: relative;
  padding-bottom: 10px;
}
.footer-title::after {
  content: "";
  position: absolute;
  left: 0; bottom: 0;
  width: 24px; height: 2px;
  background: var(--accent);
  border-radius: 2px;
}
.footer-links { display: flex; flex-direction: column; gap: 10px; }
.footer-links a { color: rgba(255,255,255,0.6); font-size: 13px; display: inline-flex; align-items: center; gap: 6px; transition: all 0.2s ease; }
.footer-links a i { font-size: 10px; color: rgba(255,255,255,0.3); transition: transform 0.2s ease; }
.footer-links a:hover { color: #fff; padding-left: 4px; }
.footer-links a:hover i { transform: translateX(3px); color: var(--accent); }
.footer-contact { display: flex; flex-direction: column; gap: 12px; }
.footer-contact-item { display: flex; align-items: center; gap: 10px; color: rgba(255,255,255,0.55); font-size: 13px; }
.footer-contact-item i { width: 30px; height: 30px; background: rgba(255,255,255,0.08); border-radius: 8px; display: flex; align-items: center; justify-content: center; font-size: 13px; color: var(--accent); flex-shrink: 0; }
.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  padding-top: 24px;
  font-size: 12px;
  color: rgba(255,255,255,0.4);
}
.footer-bottom a { color: rgba(255,255,255,0.5); }
.footer-bottom a:hover { color: #fff; }

/* ===== Responsive ===== */
@media screen and (max-width: 1024px) {
  .header-row { gap: 12px; }
  .search-box { width: 140px; }
  .nav-link { padding: 26px 12px 22px; font-size: 14px; }
  .footer-grid { gap: 32px; }
}

@media screen and (max-width: 840px) {
  .search-box { display: none; }
  .hamburger { display: flex; }
  .main-nav {
    position: fixed;
    top: var(--header-height);
    left: 0; right: 0;
    background: var(--white);
    flex-direction: column;
    align-items: flex-start;
    padding: 12px 24px 20px;
    gap: 4px;
    border-bottom: 1px solid var(--border);
    box-shadow: 0 20px 40px rgba(21,35,59,0.1);
    transform: translateY(-140%);
    transition: transform 0.3s ease;
    margin: 0;
    z-index: 99;
  }
  .main-nav.open { transform: translateY(0); }
  .nav-link { padding: 12px 8px; width: 100%; border-bottom: none; border-left: 3px solid transparent; }
  .nav-link.active { border-left-color: var(--primary); border-bottom: none; background: rgba(46,110,232,0.05); }
  .nav-link.active::after { display: none; }
  .btn-login { display: none; }
  .article-card { padding: 36px 28px; }
  .article-title { font-size: 27px; }
  .article-body h2 { font-size: 21px; }
  .article-body h3 { font-size: 18px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media screen and (max-width: 640px) {
  .container { padding: 0 16px; }
  .header-actions .btn-primary.btn-sm { padding: 8px 14px; font-size: 13px; }
  .article-main { padding: 24px 0 40px; }
  .article-card { padding: 24px 20px; border-radius: 12px; }
  .article-title { font-size: 23px; }
  .article-meta { gap: 10px; font-size: 13px; }
  .article-tags { gap: 8px; }
  .article-pager { flex-direction: column; }
  .pager-link.pager-next { align-items: flex-start; text-align: left; }
  .pager-next .pager-label { justify-content: flex-start; }
  .section-header { flex-direction: column; align-items: flex-start; gap: 12px; }
  .cta-box { padding: 40px 20px; }
  .cta-box h2 { font-size: 22px; }
  .cta-actions { flex-direction: column; align-items: center; }
  .cta-actions .btn { width: 100%; max-width: 280px; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; justify-content: center; text-align: center; }
  .related-img { height: 160px; }
}

@media screen and (max-width: 520px) {
  .header-actions .btn-primary { display: none; }
  .logo-text { font-size: 18px; }
  .breadcrumb .container { font-size: 12px; }
  .article-body { font-size: 15px; }
  .article-body h2 { font-size: 19px; padding-left: 10px; }
  .article-body blockquote { padding: 14px 16px; }
  .section-title { font-size: 23px; }
}

/* roulang page: category1 */
/* ============================================================
   设计变量
============================================================ */
:root {
  --primary: #2E6EE8;
  --primary-hover: #1F56C4;
  --accent: #FF7A2F;
  --accent-hover: #E8641A;
  --bg: #F5F7FB;
  --surface: #FFFFFF;
  --text-main: #15233B;
  --text-secondary: #5A6B85;
  --text-aux: #8A97AC;
  --border-color: #E3E9F1;
  --font-main: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
  --radius-card: 14px;
  --radius-btn: 10px;
  --radius-img: 12px;
  --radius-icon: 40px;
  --shadow-card: 0 4px 16px rgba(21, 35, 59, 0.06);
  --shadow-hover: 0 8px 24px rgba(21, 35, 59, 0.10);
  --transition: all 0.3s ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-main);
  background: var(--bg);
  color: var(--text-main);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

ul, ol {
  list-style: none;
}

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

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

.row {
  max-width: 1200px;
  margin: 0 auto;
}

.row .row {
  margin-left: -0.625rem;
  margin-right: -0.625rem;
}

.columns, .column {
  padding-left: 0.625rem;
  padding-right: 0.625rem;
}

/* ============================================================
   按钮
============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 15px;
  font-weight: 600;
  padding: 12px 28px;
  border-radius: var(--radius-btn);
  border: 1px solid transparent;
  cursor: pointer;
  transition: var(--transition);
  line-height: 1.2;
  white-space: nowrap;
}

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

.btn-primary:hover {
  background: var(--primary-hover);
  transform: translateY(-1px);
  color: #fff;
}

.btn-accent {
  background: var(--accent);
  color: #fff;
}

.btn-accent:hover {
  background: var(--accent-hover);
  transform: translateY(-1px);
  color: #fff;
}

.btn-outline {
  background: #fff;
  border-color: var(--primary);
  color: var(--primary);
}

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

.btn-sm {
  padding: 8px 18px;
  font-size: 14px;
}

.btn-lg {
  padding: 14px 36px;
  font-size: 16px;
}

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

/* ============================================================
   顶部导航
============================================================ */
.site-header {
  background: var(--surface);
  height: 72px;
  border-bottom: 1px solid var(--border-color);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 1px 10px rgba(21, 35, 59, 0.03);
}

.header-inner {
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

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

.logo-icon {
  width: 38px;
  height: 38px;
  background: var(--primary);
  color: #fff;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  flex-shrink: 0;
}

.logo-text {
  font-size: 20px;
  font-weight: 700;
  color: var(--text-main);
  letter-spacing: 0.5px;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 32px;
  margin: 0 auto;
}

.nav-link {
  font-size: 15px;
  color: var(--text-secondary);
  font-weight: 500;
  padding: 8px 2px;
  position: relative;
  transition: var(--transition);
}

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

.nav-link.active {
  color: var(--primary);
  font-weight: 700;
}

.nav-link.active::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 3px;
  background: var(--primary);
  border-radius: 3px;
}

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

.search-box {
  position: relative;
  width: 180px;
}

.search-box input {
  width: 100%;
  height: 36px;
  border: 1px solid var(--border-color);
  border-radius: 20px;
  padding: 0 16px 0 36px;
  font-size: 13px;
  background: var(--bg);
  color: var(--text-main);
  transition: var(--transition);
}

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

.search-box input:focus {
  border-color: var(--primary);
  background: #fff;
  box-shadow: 0 0 0 3px rgba(46, 110, 232, 0.12);
}

.search-box i {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 13px;
  color: var(--text-aux);
  pointer-events: none;
}

.login-link {
  font-size: 14px;
  color: var(--text-secondary);
  font-weight: 500;
}

.login-link:hover {
  color: var(--primary);
}

.hamburger {
  display: none;
  background: none;
  border: none;
  font-size: 20px;
  color: var(--text-main);
  cursor: pointer;
  padding: 6px;
}

/* ============================================================
   分类 Hero 区
============================================================ */
.category-hero {
  background:
    linear-gradient(135deg, rgba(234, 241, 254, 0.96), rgba(245, 247, 251, 0.92)),
    url('/assets/images/backpic/back-1.webp') center / cover no-repeat;
  padding: 72px 0;
  border-bottom: 1px solid var(--border-color);
}

.hero-content-left {
  padding-right: 30px;
}

.category-hero h1 {
  font-size: 36px;
  font-weight: 800;
  color: var(--text-main);
  line-height: 1.25;
  margin-bottom: 16px;
  letter-spacing: 1px;
}

.hero-subtitle {
  font-size: 18px;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 10px;
  font-weight: 500;
}

.hero-desc {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.7;
  border-left: 3px solid var(--primary);
  padding-left: 18px;
  background: rgba(255, 255, 255, 0.55);
  border-radius: 0 8px 8px 0;
}

.hero-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: #fff;
  border: 1px solid var(--border-color);
  border-radius: 20px;
  padding: 6px 16px;
  font-size: 13px;
  color: var(--text-secondary);
  box-shadow: 0 2px 8px rgba(21, 35, 59, 0.05);
}

.hero-badge i {
  color: var(--primary);
  font-size: 12px;
}

.hero-actions {
  display: flex;
  gap: 14px;
  margin-top: 26px;
  flex-wrap: wrap;
}

/* ============================================================
   数据条
============================================================ */
.stats-bar {
  background: var(--surface);
  border-bottom: 1px solid var(--border-color);
  padding: 36px 0;
}

.stat-card {
  text-align: center;
  padding: 10px 6px;
  position: relative;
}

.stat-card + .stat-card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 1px;
  height: 40px;
  background: var(--border-color);
}

.stat-num {
  font-size: 32px;
  font-weight: 800;
  color: var(--primary);
  line-height: 1.2;
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 4px;
}

.stat-num span {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-aux);
}

.stat-label {
  font-size: 14px;
  color: var(--text-secondary);
  margin-top: 6px;
}

/* ============================================================
   板块头
============================================================ */
.section-block {
  padding: 80px 0;
}

.section-block-alt {
  background: var(--surface);
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
}

.section-head {
  text-align: center;
  margin-bottom: 48px;
}

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(46, 110, 232, 0.08);
  color: var(--primary);
  font-size: 13px;
  font-weight: 600;
  padding: 5px 14px;
  border-radius: 20px;
  margin-bottom: 14px;
}

.section-title {
  font-size: 28px;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 10px;
  letter-spacing: 0.5px;
}

.section-sub {
  font-size: 15px;
  color: var(--text-secondary);
  max-width: 560px;
  margin: 0 auto;
  line-height: 1.6;
}

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

.section-title-bar .section-title {
  margin-bottom: 0;
}

.title-bar-link {
  font-size: 14px;
  color: var(--primary);
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.title-bar-link:hover {
  color: var(--primary-hover);
}

/* ============================================================
   卖点卡片
============================================================ */
.feature-card {
  background: var(--surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-card);
  padding: 32px 28px;
  box-shadow: var(--shadow-card);
  transition: var(--transition);
  height: 100%;
}

.feature-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-2px);
}

.feature-icon {
  width: var(--radius-icon);
  height: var(--radius-icon);
  background: rgba(46, 110, 232, 0.1);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 17px;
  color: var(--primary);
  margin-bottom: 20px;
}

.feature-card h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 10px;
}

.feature-card p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.65;
}

.feature-card .feature-more {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: var(--primary);
  font-weight: 600;
  margin-top: 16px;
}

.feature-card .feature-more:hover {
  color: var(--primary-hover);
  gap: 10px;
}

/* ============================================================
   重点赛事图墙
============================================================ */
.showcase-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.showcase-item {
  position: relative;
  border-radius: var(--radius-card);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  transition: var(--transition);
  cursor: pointer;
}

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

.showcase-item img {
  width: 100%;
  height: 260px;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.showcase-item:hover img {
  transform: scale(1.02);
}

.showcase-item.large img {
  height: 320px;
}

.showcase-overlay {
  position: absolute;
  left: 12px;
  right: 12px;
  bottom: 12px;
  background: rgba(255, 255, 255, 0.92);
  border-radius: 10px;
  padding: 14px 18px;
  backdrop-filter: blur(4px);
  transition: var(--transition);
}

.showcase-overlay h4 {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 4px;
}

.showcase-overlay p {
  font-size: 12px;
  color: var(--text-secondary);
}

.showcase-tag {
  position: absolute;
  top: 14px;
  left: 14px;
  background: rgba(21, 35, 59, 0.75);
  color: #fff;
  font-size: 12px;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 16px;
  z-index: 2;
}

/* ============================================================
   流程步骤
============================================================ */
.steps-wrap {
  display: flex;
  gap: 24px;
  position: relative;
}

.step-item {
  flex: 1;
  background: var(--surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-card);
  padding: 28px 22px;
  text-align: center;
  box-shadow: var(--shadow-card);
  transition: var(--transition);
  position: relative;
}

.step-item:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-2px);
}

.step-num {
  width: 44px;
  height: 44px;
  background: var(--primary);
  color: #fff;
  font-size: 18px;
  font-weight: 700;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
  box-shadow: 0 4px 12px rgba(46, 110, 232, 0.25);
}

.step-item h4 {
  font-size: 16px;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 8px;
}

.step-item p {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.6;
}

.step-arrow {
  position: absolute;
  right: -20px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--border-color);
  font-size: 16px;
  z-index: 2;
  background: var(--bg);
  width: 24px;
  height: 24px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* ============================================================
   精选赛事看点（内容卡片列表）
============================================================ */
.highlight-card {
  background: var(--surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
  overflow: hidden;
  transition: var(--transition);
  display: flex;
  height: 100%;
  margin-bottom: 24px;
}

.highlight-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-2px);
}

.highlight-img {
  width: 220px;
  flex-shrink: 0;
  overflow: hidden;
  position: relative;
}

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

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

.highlight-img .img-tag {
  position: absolute;
  top: 12px;
  left: 12px;
  background: var(--accent);
  color: #fff;
  font-size: 11px;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: 12px;
  z-index: 2;
}

.highlight-content {
  padding: 22px 24px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.highlight-meta {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 12px;
  color: var(--text-aux);
  margin-bottom: 8px;
}

.highlight-meta .meta-item {
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.highlight-meta .meta-item i {
  font-size: 11px;
}

.highlight-content h3 {
  font-size: 17px;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 8px;
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.highlight-content h3 a:hover {
  color: var(--primary);
}

.highlight-content p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.65;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 14px;
  flex: 1;
}

.highlight-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 14px;
  border-top: 1px solid var(--border-color);
}

.highlight-views {
  font-size: 12px;
  color: var(--text-aux);
  display: inline-flex;
  align-items: center;
  gap: 5px;
}

.highlight-link {
  font-size: 13px;
  font-weight: 600;
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.highlight-link:hover {
  color: var(--primary-hover);
  gap: 8px;
}

/* ============================================================
   FAQ 手风琴
============================================================ */
.faq-wrap {
  max-width: 820px;
  margin: 0 auto;
}

.faq-item {
  background: var(--surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-card);
  margin-bottom: 14px;
  overflow: hidden;
  transition: var(--transition);
  box-shadow: 0 2px 8px rgba(21, 35, 59, 0.03);
}

.faq-item.open {
  border-color: rgba(46, 110, 232, 0.3);
  box-shadow: var(--shadow-card);
}

.faq-q {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 22px;
  cursor: pointer;
  font-size: 16px;
  font-weight: 600;
  color: var(--text-main);
  user-select: none;
  transition: var(--transition);
}

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

.faq-icon {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: rgba(46, 110, 232, 0.08);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: 400;
  transition: transform 0.3s ease;
  flex-shrink: 0;
}

.faq-item.open .faq-icon {
  transform: rotate(45deg);
  background: var(--primary);
  color: #fff;
}

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

.faq-a-inner {
  padding: 0 22px 18px;
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ============================================================
   CTA 区块
============================================================ */
.cta-block {
  background: linear-gradient(135deg, #EAF1FE 0%, #F0F5FF 100%);
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
  padding: 64px 0;
}

.cta-inner {
  text-align: center;
  max-width: 640px;
  margin: 0 auto;
}

.cta-inner h2 {
  font-size: 26px;
  font-weight: 800;
  color: var(--text-main);
  margin-bottom: 14px;
}

.cta-inner p {
  font-size: 15px;
  color: var(--text-secondary);
  margin-bottom: 28px;
  line-height: 1.7;
}

.cta-actions {
  display: flex;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
}

.cta-note {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 18px;
  margin-top: 22px;
  font-size: 13px;
  color: var(--text-aux);
  flex-wrap: wrap;
}

.cta-note span {
  display: inline-flex;
  align-items: center;
  gap: 5px;
}

.cta-note i {
  color: var(--primary);
  font-size: 12px;
}

/* ============================================================
   页脚
============================================================ */
.site-footer {
  background: #1B2A47;
  color: rgba(255, 255, 255, 0.8);
  padding: 60px 0 0;
  margin-top: 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr 1fr;
  gap: 48px;
  padding-bottom: 40px;
}

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

.footer-brand .logo-icon {
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
}

.footer-brand .logo-text {
  color: #fff;
}

.footer-desc {
  font-size: 14px;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.6);
  max-width: 340px;
}

.footer-title {
  font-size: 16px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 18px;
  position: relative;
  padding-bottom: 8px;
}

.footer-title::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 28px;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
}

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

.footer-links a {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.6);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: var(--transition);
}

.footer-links a:hover {
  color: #fff;
  padding-left: 4px;
}

.footer-links a i {
  font-size: 10px;
  color: rgba(255, 255, 255, 0.3);
}

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

.footer-contact-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.6);
}

.footer-contact-item i {
  width: 32px;
  height: 32px;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.7);
  flex-shrink: 0;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding: 20px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.4);
  flex-wrap: wrap;
  gap: 8px;
}

.footer-bottom a {
  color: rgba(255, 255, 255, 0.5);
}

.footer-bottom a:hover {
  color: #fff;
}

/* ============================================================
   响应式断点
============================================================ */
@media (max-width: 1024px) {
  .main-nav {
    gap: 20px;
  }
  .search-box {
    width: 140px;
  }
  .highlight-img {
    width: 180px;
  }
}

@media (max-width: 768px) {
  .site-header {
    height: auto;
    min-height: 64px;
  }
  .header-inner {
    height: 64px;
    flex-wrap: wrap;
  }
  .main-nav {
    display: none;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: #fff;
    flex-direction: column;
    align-items: flex-start;
    padding: 16px 24px;
    gap: 4px;
    border-bottom: 1px solid var(--border-color);
    box-shadow: 0 8px 20px rgba(21, 35, 59, 0.08);
    margin: 0;
  }
  .main-nav.open {
    display: flex;
  }
  .nav-link {
    display: block;
    width: 100%;
    padding: 10px 0;
    border-bottom: 1px solid #f0f3f8;
    font-size: 15px;
  }
  .nav-link.active::after {
    display: none;
  }
  .nav-link.active {
    background: rgba(46, 110, 232, 0.05);
    padding-left: 10px;
    border-radius: 6px;
    color: var(--primary);
  }
  .search-box {
    display: none;
  }
  .hamburger {
    display: block;
  }
  .login-link {
    display: none;
  }
  .header-inner .btn-sm {
    padding: 8px 14px;
    font-size: 13px;
  }

  .category-hero {
    padding: 48px 0;
  }
  .category-hero h1 {
    font-size: 28px;
  }
  .hero-subtitle {
    font-size: 16px;
  }
  .hero-desc {
    font-size: 14px;
    margin-top: 16px;
  }
  .hero-actions {
    flex-direction: column;
    align-items: flex-start;
  }
  .hero-actions .btn {
    width: 100%;
  }

  .section-block {
    padding: 56px 0;
  }
  .section-title {
    font-size: 23px;
  }
  .section-sub {
    font-size: 14px;
  }

  .stat-num {
    font-size: 26px;
  }

  .steps-wrap {
    flex-direction: column;
    gap: 16px;
  }
  .step-arrow {
    display: none;
  }

  .highlight-card {
    flex-direction: column;
  }
  .highlight-img {
    width: 100%;
    height: 180px;
  }

  .showcase-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  .showcase-item img,
  .showcase-item.large img {
    height: 220px;
  }

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

  .cta-block {
    padding: 48px 0;
  }
  .cta-inner h2 {
    font-size: 22px;
  }
}

@media (max-width: 520px) {
  .container {
    padding: 0 16px;
  }
  .header-inner .btn-sm {
    display: none;
  }
  .logo-text {
    font-size: 17px;
  }
  .category-hero h1 {
    font-size: 24px;
  }
  .category-hero {
    padding: 36px 0;
  }
  .section-block {
    padding: 40px 0;
  }
  .section-head {
    margin-bottom: 30px;
  }
  .feature-card {
    padding: 24px 18px;
  }
  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
    gap: 6px;
    font-size: 12px;
  }
  .hero-actions .btn {
    padding: 10px 20px;
    font-size: 14px;
  }
  .cta-actions .btn {
    width: 100%;
  }
  .stat-card + .stat-card::before {
    display: none;
  }
}

/* roulang page: category2 */
/* ===== 设计变量 ===== */
    :root {
      --primary: #2E6EE8;
      --primary-dark: #1F56C4;
      --secondary: #FF7A2F;
      --secondary-dark: #E8641A;
      --bg: #F5F7FB;
      --card-bg: #FFFFFF;
      --text: #15233B;
      --text-secondary: #5A6B85;
      --text-muted: #8A97AC;
      --border: #E3E9F1;
      --radius: 14px;
      --radius-sm: 10px;
      --radius-lg: 16px;
      --shadow: 0 4px 16px rgba(21, 35, 59, 0.06);
      --shadow-lg: 0 8px 24px rgba(21, 35, 59, 0.10);
      --container: 1200px;
      --space-section: 80px;
      --font: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
    }

    /* ===== 基础 Reset ===== */
    *, *::before, *::after {
      box-sizing: border-box;
    }
    html {
      font-size: 16px;
      -webkit-text-size-adjust: 100%;
      scroll-behavior: smooth;
    }
    body {
      margin: 0;
      padding: 0;
      font-family: var(--font);
      font-size: 16px;
      line-height: 1.6;
      color: var(--text);
      background-color: var(--bg);
      -webkit-font-smoothing: antialiased;
      -moz-osx-font-smoothing: grayscale;
    }
    a {
      color: var(--primary);
      text-decoration: none;
      transition: color .2s ease;
    }
    a:hover,
    a:focus {
      color: var(--primary-dark);
      outline: none;
    }
    a:focus,
    button:focus,
    input:focus {
      outline: 2px solid rgba(46, 110, 232, .35);
      outline-offset: 2px;
    }
    img {
      max-width: 100%;
      height: auto;
      display: block;
    }
    ul, ol {
      margin: 0;
      padding: 0;
    }
    .container {
      max-width: var(--container);
      margin-left: auto;
      margin-right: auto;
      padding-left: 24px;
      padding-right: 24px;
    }
    section {
      display: block;
    }

    /* ===== 通用按钮 ===== */
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      border-radius: var(--radius-sm);
      padding: 12px 28px;
      font-size: 15px;
      font-weight: 600;
      line-height: 1.4;
      cursor: pointer;
      border: 1px solid transparent;
      text-align: center;
      transition: all .25s ease;
      white-space: nowrap;
    }
    .btn-primary {
      background: var(--primary);
      color: #fff;
      border-color: var(--primary);
    }
    .btn-primary:hover,
    .btn-primary:active {
      background: var(--primary-dark);
      border-color: var(--primary-dark);
      color: #fff;
    }
    .btn-outline {
      background: #fff;
      color: var(--primary);
      border-color: var(--primary);
    }
    .btn-outline:hover,
    .btn-outline:active {
      background: rgba(46, 110, 232, .06);
      color: var(--primary-dark);
      border-color: var(--primary-dark);
    }
    .btn-cta {
      background: var(--secondary);
      color: #fff;
      border-color: var(--secondary);
    }
    .btn-cta:hover,
    .btn-cta:active {
      background: var(--secondary-dark);
      border-color: var(--secondary-dark);
      color: #fff;
    }
    .btn-sm {
      padding: 8px 16px;
      font-size: 14px;
      border-radius: 8px;
    }

    /* ===== 顶部导航 ===== */
    .main-nav {
      position: sticky;
      top: 0;
      z-index: 100;
      background: #fff;
      border-bottom: 1px solid var(--border);
      height: 72px;
    }
    .nav-container {
      max-width: var(--container);
      height: 72px;
      margin: 0 auto;
      padding: 0 24px;
      display: flex;
      align-items: center;
      gap: 24px;
    }
    .brand-logo {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      flex-shrink: 0;
    }
    .logo-icon {
      width: 36px;
      height: 36px;
      border-radius: 10px;
      background: var(--primary);
      color: #fff;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      font-size: 18px;
    }
    .logo-text {
      font-size: 20px;
      font-weight: 700;
      color: var(--text);
      letter-spacing: .5px;
    }
    .main-nav-links {
      display: flex;
      align-items: center;
      gap: 32px;
      margin-left: 24px;
      flex: 1;
    }
    .nav-link {
      font-size: 16px;
      font-weight: 500;
      color: var(--text);
      padding: 8px 4px;
      position: relative;
      border-bottom: 2px solid transparent;
      transition: color .25s ease;
    }
    .nav-link::after {
      content: '';
      position: absolute;
      left: 0;
      bottom: 0;
      width: 0;
      height: 2px;
      background: var(--primary);
      border-radius: 1px;
      transition: width .25s ease;
    }
    .nav-link:hover,
    .nav-link.active {
      color: var(--primary);
    }
    .nav-link:hover::after,
    .nav-link.active::after {
      width: 100%;
    }
    .nav-link.active {
      font-weight: 600;
    }
    .nav-actions {
      display: flex;
      align-items: center;
      gap: 14px;
      margin-left: auto;
      flex-shrink: 0;
    }
    .search-wrap {
      position: relative;
    }
    .search-wrap .fa-search {
      position: absolute;
      left: 14px;
      top: 50%;
      transform: translateY(-50%);
      color: var(--text-muted);
      font-size: 14px;
      pointer-events: none;
    }
    .search-input {
      width: 180px;
      height: 38px;
      border: 1px solid var(--border);
      border-radius: 19px;
      padding: 0 14px 0 38px;
      font-family: var(--font);
      font-size: 14px;
      color: var(--text);
      background: var(--bg);
      transition: border-color .2s ease, background .2s ease;
    }
    .search-input:focus {
      border-color: var(--primary);
      background: #fff;
      outline: none;
    }
    .login-link {
      font-size: 14px;
      color: var(--text-secondary);
      font-weight: 500;
      transition: color .2s;
    }
    .login-link:hover {
      color: var(--primary);
    }
    .hamburger {
      display: none;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      gap: 5px;
      width: 40px;
      height: 40px;
      background: none;
      border: 1px solid var(--border);
      border-radius: 8px;
      cursor: pointer;
    }
    .hamburger span {
      display: block;
      width: 18px;
      height: 2px;
      background: var(--text);
      border-radius: 2px;
      transition: all .3s ease;
    }
    .hamburger.active span:nth-child(1) {
      transform: translateY(7px) rotate(45deg);
    }
    .hamburger.active span:nth-child(2) {
      opacity: 0;
    }
    .hamburger.active span:nth-child(3) {
      transform: translateY(-7px) rotate(-45deg);
    }

    /* ===== 分类 Banner ===== */
    .cat-banner {
      position: relative;
      background: var(--bg);
      border-bottom: 1px solid var(--border);
      overflow: hidden;
    }
    .cat-banner .banner-bg {
      position: absolute;
      inset: 0;
      background-repeat: no-repeat;
      background-size: cover;
      background-position: center;
      opacity: .18;
    }
    .cat-banner .banner-overlay {
      position: absolute;
      inset: 0;
      background: linear-gradient(120deg, rgba(245, 247, 251, .95) 0%, rgba(245, 247, 251, .55) 100%);
    }
    .cat-banner .container {
      position: relative;
      padding-top: 72px;
      padding-bottom: 72px;
    }
    .banner-tag {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      background: rgba(46, 110, 232, .1);
      color: var(--primary);
      font-size: 13px;
      font-weight: 600;
      padding: 6px 14px;
      border-radius: 20px;
      margin-bottom: 16px;
    }
    .cat-h1 {
      font-size: 38px;
      line-height: 1.25;
      font-weight: 800;
      margin: 0 0 14px;
      color: var(--text);
      letter-spacing: 1px;
    }
    .banner-desc {
      font-size: 16px;
      line-height: 1.7;
      color: var(--text-secondary);
      max-width: 520px;
      margin-bottom: 28px;
    }
    .banner-actions {
      display: flex;
      gap: 14px;
      flex-wrap: wrap;
    }
    .banner-card {
      background: #fff;
      border: 1px solid var(--border);
      border-radius: var(--radius);
      box-shadow: var(--shadow);
      padding: 24px;
      display: flex;
      align-items: center;
      gap: 16px;
      max-width: 340px;
    }
    .banner-card-icon {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: rgba(255, 122, 47, .12);
      color: var(--secondary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 18px;
      flex-shrink: 0;
    }
    .banner-card-text p {
      margin: 0;
      font-size: 14px;
      color: var(--text-secondary);
      line-height: 1.5;
    }
    .banner-card-text strong {
      display: block;
      font-size: 22px;
      color: var(--text);
      margin-bottom: 2px;
    }

    /* ===== 板块通用 ===== */
    .section-block {
      padding: var(--space-section) 0;
    }
    .section-block-alt {
      background: #FFFFFF;
    }
    .section-head {
      text-align: center;
      max-width: 680px;
      margin: 0 auto 48px;
    }
    .section-head h2 {
      font-size: 32px;
      font-weight: 800;
      margin: 0 0 10px;
      color: var(--text);
      letter-spacing: .5px;
    }
    .section-head p {
      font-size: 15px;
      color: var(--text-secondary);
      margin: 0;
      line-height: 1.7;
    }

    /* ===== 热门活动卡片 ===== */
    .events-grid {
      margin-top: 8px;
    }
    .event-card {
      background: var(--card-bg);
      border: 1px solid var(--border);
      border-radius: var(--radius);
      box-shadow: var(--shadow);
      overflow: hidden;
      transition: transform .3s ease, box-shadow .3s ease;
      height: 100%;
      display: flex;
      flex-direction: column;
    }
    .event-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-lg);
    }
    .card-media {
      position: relative;
      display: block;
      overflow: hidden;
      height: 180px;
    }
    .card-media img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform .4s ease;
    }
    .event-card:hover .card-media img {
      transform: scale(1.04);
    }
    .card-cat {
      position: absolute;
      top: 12px;
      left: 12px;
      background: rgba(255, 255, 255, .92);
      color: var(--primary);
      font-size: 12px;
      font-weight: 600;
      padding: 4px 10px;
      border-radius: 16px;
      backdrop-filter: blur(4px);
    }
    .card-body {
      padding: 20px;
      display: flex;
      flex-direction: column;
      flex: 1;
    }
    .card-title {
      font-size: 18px;
      font-weight: 700;
      margin: 0 0 8px;
      line-height: 1.4;
    }
    .card-title a {
      color: var(--text);
    }
    .card-title a:hover {
      color: var(--primary);
    }
    .card-desc {
      font-size: 14px;
      color: var(--text-secondary);
      line-height: 1.65;
      margin: 0 0 16px;
      flex: 1;
    }
    .card-meta {
      display: flex;
      align-items: center;
      justify-content: space-between;
      border-top: 1px solid var(--border);
      padding-top: 14px;
      font-size: 13px;
      color: var(--text-muted);
    }
    .meta-time i {
      margin-right: 4px;
    }
    .meta-link a {
      font-weight: 600;
      font-size: 13px;
      display: inline-flex;
      align-items: center;
      gap: 4px;
    }
    .meta-link a i {
      font-size: 12px;
      transition: transform .2s;
    }
    .meta-link a:hover i {
      transform: translateX(3px);
    }

    /* ===== 玩法类型 ===== */
    .type-card {
      background: #fff;
      border: 1px solid var(--border);
      border-radius: var(--radius);
      padding: 28px 24px;
      height: 100%;
      display: flex;
      flex-direction: column;
      transition: box-shadow .3s ease, transform .3s ease;
    }
    .type-card:hover {
      box-shadow: var(--shadow-lg);
      transform: translateY(-3px);
    }
    .type-icon {
      width: 48px;
      height: 48px;
      border-radius: 50%;
      background: rgba(46, 110, 232, .1);
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 20px;
      margin-bottom: 16px;
    }
    .type-card h3 {
      font-size: 17px;
      font-weight: 700;
      margin: 0 0 8px;
      color: var(--text);
    }
    .type-card p {
      font-size: 14px;
      color: var(--text-secondary);
      line-height: 1.65;
      margin: 0;
    }

    /* ===== 参与流程 ===== */
    .steps-section {
      background: #fff;
      padding: var(--space-section) 0;
    }
    .steps-wrap {
      display: flex;
      gap: 32px;
      margin-top: 12px;
    }
    .step-item {
      flex: 1;
      text-align: center;
      padding: 32px 24px;
      background: var(--bg);
      border-radius: var(--radius);
      border: 1px solid var(--border);
      position: relative;
      transition: box-shadow .3s ease, transform .3s;
    }
    .step-item:hover {
      box-shadow: var(--shadow-lg);
      transform: translateY(-3px);
    }
    .step-num {
      font-size: 40px;
      font-weight: 800;
      color: transparent;
      -webkit-text-stroke: 1.5px var(--primary);
      line-height: 1;
      margin-bottom: 16px;
      display: block;
    }
    .step-item h3 {
      font-size: 17px;
      font-weight: 700;
      margin: 0 0 8px;
      color: var(--text);
    }
    .step-item p {
      font-size: 14px;
      color: var(--text-secondary);
      margin: 0;
      line-height: 1.65;
    }

    /* ===== 数据统计条 ===== */
    .stats-band {
      background: #1B2A47;
      padding: 56px 0;
    }
    .stat-item {
      text-align: center;
      padding: 12px 20px;
    }
    .stat-num {
      font-size: 44px;
      font-weight: 800;
      color: #fff;
      line-height: 1.1;
      margin-bottom: 6px;
      font-family: "Inter", "Helvetica Neue", var(--font);
    }
    .stat-num span {
      color: var(--secondary);
      font-size: 28px;
      margin-left: 2px;
    }
    .stat-label {
      font-size: 14px;
      color: rgba(255, 255, 255, .72);
    }

    /* ===== 价值卖点 ===== */
    .value-card {
      background: #fff;
      border: 1px solid var(--border);
      border-radius: var(--radius);
      padding: 28px 24px;
      height: 100%;
      transition: box-shadow .3s ease, transform .3s;
    }
    .value-card:hover {
      box-shadow: var(--shadow-lg);
      transform: translateY(-3px);
    }
    .value-icon {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: rgba(255, 122, 47, .12);
      color: var(--secondary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 18px;
      margin-bottom: 16px;
    }
    .value-card h3 {
      font-size: 17px;
      font-weight: 700;
      margin: 0 0 8px;
      color: var(--text);
    }
    .value-card p {
      font-size: 14px;
      color: var(--text-secondary);
      line-height: 1.65;
      margin: 0;
    }

    /* ===== FAQ ===== */
    .faq-section {
      background: #fff;
      padding: var(--space-section) 0;
    }
    .faq-list {
      max-width: 820px;
      margin: 0 auto;
    }
    .faq-item {
      border-bottom: 1px solid var(--border);
      transition: background .2s;
    }
    .faq-item:first-child {
      border-top: 1px solid var(--border);
    }
    .faq-question {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 20px 8px;
      cursor: pointer;
      font-size: 16px;
      font-weight: 600;
      color: var(--text);
      transition: color .2s;
      user-select: none;
    }
    .faq-question:hover {
      color: var(--primary);
    }
    .faq-icon {
      width: 28px;
      height: 28px;
      background: var(--bg);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--primary);
      font-size: 14px;
      transition: transform .3s ease, background .3s ease;
      flex-shrink: 0;
    }
    .faq-item.open .faq-icon {
      transform: rotate(45deg);
      background: rgba(46, 110, 232, .1);
    }
    .faq-answer {
      max-height: 0;
      overflow: hidden;
      padding: 0 8px;
      transition: max-height .35s ease, padding .3s ease;
    }
    .faq-answer p {
      font-size: 14px;
      color: var(--text-secondary);
      line-height: 1.75;
      padding-bottom: 20px;
      margin: 0;
    }
    .faq-item.open .faq-answer {
      max-height: 300px;
    }

    /* ===== CTA ===== */
    .cta-section {
      background: #EEF4FE;
      padding: 64px 24px;
      text-align: center;
    }
    .cta-box {
      max-width: 680px;
      margin: 0 auto;
    }
    .cta-box h2 {
      font-size: 28px;
      font-weight: 800;
      margin: 0 0 10px;
      color: var(--text);
    }
    .cta-box p {
      font-size: 15px;
      color: var(--text-secondary);
      margin: 0 0 28px;
      line-height: 1.7;
    }

    /* ===== 页脚 ===== */
    .site-footer {
      background: #16233B;
      color: rgba(255, 255, 255, .72);
      padding-top: 56px;
    }
    .footer-grid {
      display: flex;
      gap: 48px;
      flex-wrap: wrap;
      padding-bottom: 32px;
    }
    .footer-brand {
      flex: 2;
      min-width: 260px;
    }
    .footer-brand .logo {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      margin-bottom: 16px;
    }
    .footer-brand .logo-icon {
      background: var(--primary);
    }
    .footer-brand .logo-text {
      color: #fff;
    }
    .footer-desc {
      font-size: 14px;
      line-height: 1.75;
      max-width: 360px;
      margin: 0;
      color: rgba(255, 255, 255, .6);
    }
    .site-footer > .container > div:not(.footer-bottom) {
      border-bottom: 1px solid rgba(255, 255, 255, .1);
    }
    .site-footer h3.footer-title {
      color: #fff;
      font-size: 16px;
      font-weight: 700;
      margin: 0 0 16px;
    }
    .footer-links {
      display: flex;
      flex-direction: column;
      gap: 10px;
    }
    .footer-links a {
      color: rgba(255, 255, 255, .65);
      font-size: 14px;
      display: inline-flex;
      align-items: center;
      gap: 6px;
      transition: color .2s;
    }
    .footer-links a i {
      font-size: 10px;
      color: rgba(255, 255, 255, .35);
    }
    .footer-links a:hover {
      color: #fff;
    }
    .footer-contact {
      display: flex;
      flex-direction: column;
      gap: 12px;
      font-size: 14px;
    }
    .footer-contact-item {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 14px;
      color: rgba(255, 255, 255, .65);
    }
    .footer-contact-item i {
      color: var(--primary);
      width: 18px;
      text-align: center;
      font-size: 16px;
    }
    .footer-bottom {
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 8px;
      padding: 20px 0;
      font-size: 13px;
      color: rgba(255, 255, 255, .5);
      border-top: 1px solid rgba(255, 255, 255, .1);
      margin-top: 8px;
    }
    .footer-bottom a {
      color: rgba(255, 255, 255, .6);
    }
    .footer-bottom a:hover {
      color: #fff;
    }

    /* ===== 响应式 ===== */
    @media (max-width: 1024px) {
      .nav-container {
        padding: 0 20px;
      }
      .main-nav-links {
        gap: 20px;
        margin-left: 16px;
      }
      .search-input {
        width: 140px;
      }
      .cat-h1 {
        font-size: 32px;
      }
      .steps-wrap {
        flex-direction: column;
        gap: 20px;
      }
    }

    @media (max-width: 768px) {
      .main-nav {
        height: auto;
        min-height: 64px;
      }
      .nav-container {
        flex-wrap: wrap;
        height: auto;
        padding: 12px 16px;
        gap: 10px;
      }
      .main-nav-links {
        display: none;
        width: 100%;
        flex-direction: column;
        align-items: flex-start;
        gap: 0;
        margin-left: 0;
        order: 3;
        border-top: 1px solid var(--border);
        padding-top: 10px;
        padding-bottom: 10px;
      }
      .main-nav-links.mobile-open {
        display: flex;
      }
      .main-nav-links .nav-link {
        width: 100%;
        padding: 12px 0;
        border-bottom: none;
      }
      .main-nav-links .nav-link::after {
        display: none;
      }
      .main-nav-links .nav-link.active {
        color: var(--primary);
        background: rgba(46, 110, 232, .04);
        border-radius: 8px;
        padding-left: 12px;
      }
      .nav-actions {
        margin-left: auto;
      }
      .search-wrap {
        display: none;
      }
      .login-link {
        display: none;
      }
      .hamburger {
        display: flex;
      }
      .cat-banner .container {
        padding-top: 48px;
        padding-bottom: 48px;
      }
      .cat-h1 {
        font-size: 30px;
      }
      .section-block {
        padding: 56px 0;
      }
      .section-head h2 {
        font-size: 26px;
      }
      .stats-band {
        padding: 40px 0;
      }
      .stat-num {
        font-size: 34px;
      }
      .footer-grid {
        flex-direction: column;
        gap: 32px;
      }
      .footer-bottom {
        flex-direction: column;
        align-items: flex-start;
      }
    }

    @media (max-width: 520px) {
      .banner-actions {
        flex-direction: column;
        align-items: stretch;
      }
      .banner-actions .btn {
        width: 100%;
      }
      .cat-h1 {
        font-size: 28px;
      }
      .card-title {
        font-size: 16px;
      }
      .event-card .card-media {
        height: 160px;
      }
      .section-head h2 {
        font-size: 24px;
      }
      .section-head p {
        font-size: 14px;
      }
      .step-item {
        padding: 24px 16px;
      }
      .stat-item {
        padding: 10px;
      }
      .stat-num {
        font-size: 28px;
      }
      .stat-label {
        font-size: 12px;
      }
      .faq-question {
        font-size: 14px;
      }
      .cta-section {
        padding: 48px 16px;
      }
      .cta-box h2 {
        font-size: 24px;
      }
    }