/* roulang page: index */
:root {
  --primary: #0b1a2d;
  --primary-dark: #060e1a;
  --primary-light: #132743;
  --accent: #d4a853;
  --accent-light: #e8c97a;
  --accent-dark: #b3873a;
  --bg-light: #f4f6fa;
  --bg-white: #ffffff;
  --text-main: #1b2a3c;
  --text-weak: #66788c;
  --text-light: #eef2f7;
  --border: #e3e9f0;
  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-full: 999px;
  --shadow-xs: 0 2px 8px rgba(11, 26, 45, 0.04);
  --shadow-sm: 0 4px 16px rgba(11, 26, 45, 0.07);
  --shadow-md: 0 10px 30px rgba(11, 26, 45, 0.1);
  --shadow-lg: 0 20px 50px rgba(11, 26, 45, 0.15);
  --space-section: 100px;
  --transition: all .3s cubic-bezier(.4, 0, .2, 1);
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  color: var(--text-main);
  background: var(--bg-light);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
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; outline: none; border: none; }
button { background: none; cursor: pointer; }
.grid-container { max-width: 1200px; }
::selection { background: rgba(212, 168, 83, .3); }

/* header nav */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 18px 24px 0;
  pointer-events: none;
}
.header-inner {
  max-width: 1180px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(11, 26, 45, .82);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-radius: var(--radius-full);
  padding: 12px 28px;
  border: 1px solid rgba(255, 255, 255, .08);
  box-shadow: 0 12px 45px rgba(6, 14, 26, .45);
  pointer-events: auto;
  transition: var(--transition);
}
.header-inner.nav-open { border-radius: 24px; }
.logo {
  font-size: 1.35rem;
  font-weight: 800;
  color: #fff;
  letter-spacing: .5px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.logo i { color: var(--accent); font-size: 1.4rem; }
.main-nav {
  display: flex;
  align-items: center;
  gap: 36px;
}
.main-nav a {
  color: rgba(255, 255, 255, .75);
  font-size: .92rem;
  font-weight: 500;
  padding: 6px 4px;
  position: relative;
}
.main-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 2px;
  background: var(--accent);
  border-radius: 2px;
  transition: var(--transition);
}
.main-nav a:hover { color: #fff; }
.main-nav a:hover::after { width: 100%; }
.main-nav a.active { color: var(--accent); }
.main-nav a.active::after { width: 100%; }
.nav-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--accent);
  color: var(--primary-dark);
  font-size: .88rem;
  font-weight: 700;
  padding: 10px 22px;
  border-radius: var(--radius-full);
  box-shadow: 0 6px 20px rgba(212, 168, 83, .35);
  transition: var(--transition);
}
.nav-cta:hover { background: var(--accent-light); transform: translateY(-2px); box-shadow: 0 10px 30px rgba(212, 168, 83, .45); }
.nav-toggle {
  display: none;
  color: #fff;
  font-size: 1.3rem;
  padding: 6px 10px;
  border-radius: 8px;
}
.nav-toggle:hover { background: rgba(255, 255, 255, .1); }

/* hero */
.hero-section {
  position: relative;
  min-height: 92vh;
  display: flex;
  align-items: center;
  background: linear-gradient(135deg, rgba(6, 14, 26, .9), rgba(11, 26, 45, .65)), url("/assets/images/backpic/back-1.png") center/cover no-repeat;
  padding: 140px 0 90px;
  overflow: hidden;
}
.hero-section::before {
  content: "";
  position: absolute;
  right: -120px;
  top: 10%;
  width: 460px;
  height: 460px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(212, 168, 83, .22), transparent 65%);
  pointer-events: none;
}
.hero-content { position: relative; z-index: 2; max-width: 720px; }
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(212, 168, 83, .14);
  color: var(--accent-light);
  border: 1px solid rgba(212, 168, 83, .3);
  padding: 8px 20px;
  border-radius: var(--radius-full);
  font-size: .78rem;
  font-weight: 700;
  letter-spacing: 2px;
  margin-bottom: 28px;
}
.hero-section h1 {
  font-size: clamp(2.6rem, 5vw, 4.6rem);
  font-weight: 900;
  color: #fff;
  line-height: 1.15;
  letter-spacing: 1px;
  margin-bottom: 20px;
}
.hero-section h1 span { color: var(--accent); }
.hero-section .hero-sub {
  font-size: clamp(1.1rem, 2vw, 1.5rem);
  color: rgba(255, 255, 255, .9);
  font-weight: 600;
  margin-bottom: 12px;
}
.hero-section .hero-desc {
  font-size: 1rem;
  color: rgba(255, 255, 255, .7);
  max-width: 520px;
  margin-bottom: 36px;
  line-height: 1.8;
}
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: .92rem;
  font-weight: 600;
  padding: 14px 32px;
  border-radius: var(--radius-full);
  transition: var(--transition);
  border: 1px solid transparent;
}
.btn-accent {
  background: var(--accent);
  color: var(--primary-dark);
  box-shadow: 0 8px 28px rgba(212, 168, 83, .4);
}
.btn-accent:hover { background: var(--accent-light); transform: translateY(-2px); box-shadow: 0 14px 36px rgba(212, 168, 83, .5); }
.btn-ghost {
  background: rgba(255, 255, 255, .08);
  color: #fff;
  border-color: rgba(255, 255, 255, .25);
  backdrop-filter: blur(4px);
}
.btn-ghost:hover { background: rgba(255, 255, 255, .16); border-color: rgba(255, 255, 255, .5); transform: translateY(-2px); }
.hero-scroll {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  color: rgba(255, 255, 255, .6);
  font-size: 1.4rem;
  animation: bounce 2.4s infinite;
}
@keyframes bounce { 0%, 100% { transform: translateX(-50%) translateY(0); } 50% { transform: translateX(-50%) translateY(10px); } }

/* section common */
.section-pad { padding: var(--space-section) 0; }
.section-head { text-align: center; max-width: 660px; margin: 0 auto 56px; }
.section-tag {
  display: inline-block;
  background: rgba(212, 168, 83, .12);
  color: var(--accent-dark);
  border: 1px solid rgba(212, 168, 83, .3);
  padding: 6px 18px;
  border-radius: var(--radius-full);
  font-size: .78rem;
  font-weight: 700;
  letter-spacing: 2px;
  margin-bottom: 16px;
}
.section-head h2 { font-size: clamp(1.8rem, 3vw, 2.6rem); font-weight: 800; color: var(--primary); line-height: 1.3; margin-bottom: 12px; }
.section-head p { color: var(--text-weak); font-size: .98rem; line-height: 1.8; }
.section-dark .section-head h2 { color: #fff; }
.section-dark .section-head p { color: rgba(255, 255, 255, .6); }

/* stats */
.stats-section { background: var(--bg-white); padding: 0; margin-top: -2px; }
.stats-grid { padding: 30px 0 70px; }
.stat-card {
  text-align: center;
  padding: 36px 20px 30px;
  border-radius: var(--radius-md);
  background: var(--bg-white);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  height: 100%;
}
.stat-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); border-color: rgba(212, 168, 83, .35); }
.stat-icon {
  width: 54px;
  height: 54px;
  margin: 0 auto 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, rgba(212, 168, 83, .15), rgba(212, 168, 83, .06));
  color: var(--accent-dark);
  font-size: 1.4rem;
  border-radius: 14px;
}
.stat-number { font-size: 2rem; font-weight: 800; color: var(--primary); display: block; line-height: 1.3; }
.stat-number i { font-style: normal; color: var(--accent); }
.stat-label { font-size: .86rem; color: var(--text-weak); margin-top: 6px; display: block; }

/* category cards */
.categories-section { background: var(--bg-light); }
.category-card {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: block;
  height: 340px;
  background: var(--primary);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}
.category-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-lg); }
.category-card img { width: 100%; height: 100%; object-fit: cover; opacity: .85; transition: transform .6s ease, opacity .3s ease; }
.category-card:hover img { transform: scale(1.06); opacity: .7; }
.category-overlay {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 26px;
  background: linear-gradient(to top, rgba(6, 14, 26, .92), transparent);
  color: #fff;
}
.category-overlay .cat-tag { font-size: .72rem; color: var(--accent-light); letter-spacing: 1.5px; font-weight: 700; text-transform: uppercase; }
.category-overlay h3 { font-size: 1.35rem; font-weight: 700; margin: 8px 0 6px; }
.category-overlay p { font-size: .85rem; color: rgba(255, 255, 255, .75); line-height: 1.6; }
.category-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 12px;
  color: var(--accent);
  font-size: .85rem;
  font-weight: 600;
}
.category-link i { transition: transform .3s ease; }
.category-card:hover .category-link i { transform: translateX(6px); }

/* features dark */
.features-section {
  background: linear-gradient(135deg, var(--primary-dark), var(--primary-light)), url("/assets/images/backpic/back-2.png") center/cover no-repeat;
  color: #fff;
  padding: var(--space-section) 0;
  position: relative;
  overflow: hidden;
}
.features-section::before {
  content: "";
  position: absolute;
  left: -100px;
  bottom: -100px;
  width: 350px;
  height: 350px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(212, 168, 83, .18), transparent 65%);
}
.feature-media { border-radius: var(--radius-lg); overflow: hidden; box-shadow: 0 25px 60px rgba(0, 0, 0, .4); }
.feature-media img { width: 100%; height: 460px; object-fit: cover; }
.feature-content { padding-left: 20px; }
.feature-content .section-tag { background: rgba(212, 168, 83, .15); color: var(--accent-light); border-color: rgba(212, 168, 83, .3); }
.feature-content h2 { font-size: 2rem; font-weight: 800; line-height: 1.4; margin-bottom: 18px; }
.feature-content > p { color: rgba(255, 255, 255, .7); font-size: .95rem; line-height: 1.8; margin-bottom: 28px; }
.feature-list { display: flex; flex-direction: column; gap: 18px; }
.feature-list li { display: flex; gap: 14px; align-items: flex-start; }
.feature-list .fi-icon {
  flex: 0 0 44px;
  height: 44px;
  border-radius: 12px;
  background: rgba(212, 168, 83, .14);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.05rem;
}
.feature-list .fi-text h4 { font-size: 1rem; font-weight: 700; color: #fff; margin-bottom: 4px; }
.feature-list .fi-text p { font-size: .84rem; color: rgba(255, 255, 255, .6); line-height: 1.6; }

/* news */
.news-section { background: var(--bg-white); }
.news-list { max-width: 860px; margin: 0 auto; display: flex; flex-direction: column; gap: 14px; }
.news-item {
  display: block;
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 24px 28px;
  transition: var(--transition);
}
.news-item:hover { border-color: rgba(212, 168, 83, .4); box-shadow: var(--shadow-md); transform: translateY(-2px); }
.news-meta { display: flex; align-items: center; gap: 14px; margin-bottom: 8px; }
.news-cat {
  background: rgba(212, 168, 83, .12);
  color: var(--accent-dark);
  font-size: .74rem;
  font-weight: 700;
  padding: 4px 14px;
  border-radius: var(--radius-full);
}
.news-meta time { font-size: .78rem; color: var(--text-weak); }
.news-item h3 { font-size: 1.12rem; font-weight: 700; color: var(--text-main); margin-bottom: 6px; line-height: 1.6; transition: var(--transition); }
.news-item:hover h3 { color: var(--accent-dark); }
.news-item p { font-size: .88rem; color: var(--text-weak); line-height: 1.7; }
.news-empty {
  text-align: center;
  padding: 50px 20px;
  background: var(--bg-light);
  border-radius: var(--radius-md);
  border: 1px dashed var(--border);
  color: var(--text-weak);
  font-size: .95rem;
}

/* steps */
.steps-section { background: var(--bg-light); }
.step-card {
  background: var(--bg-white);
  border-radius: var(--radius-md);
  padding: 36px 28px;
  text-align: center;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-xs);
  height: 100%;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}
.step-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), var(--accent-light));
  transform: scaleX(0);
  transition: transform .4s ease;
}
.step-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); }
.step-card:hover::before { transform: scaleX(1); }
.step-num {
  font-size: 2.6rem;
  font-weight: 900;
  color: rgba(212, 168, 83, .2);
  line-height: 1;
  display: block;
  margin-bottom: 18px;
  letter-spacing: -2px;
}
.step-icon {
  width: 52px;
  height: 52px;
  margin: 0 auto 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  color: var(--accent);
  font-size: 1.25rem;
  border-radius: 16px;
  box-shadow: 0 8px 20px rgba(11, 26, 45, .2);
}
.step-card h3 { font-size: 1.08rem; font-weight: 700; color: var(--primary); margin-bottom: 10px; }
.step-card p { font-size: .85rem; color: var(--text-weak); line-height: 1.7; }

/* ranking */
.ranking-section {
  background: linear-gradient(145deg, rgba(6, 14, 26, .94), rgba(11, 26, 45, .88)), url("/assets/images/backpic/back-3.png") center/cover no-repeat;
  padding: var(--space-section) 0;
  color: #fff;
}
.ranking-box {
  max-width: 900px;
  margin: 0 auto;
  background: rgba(255, 255, 255, .04);
  border: 1px solid rgba(255, 255, 255, .1);
  border-radius: var(--radius-lg);
  padding: 36px;
  backdrop-filter: blur(8px);
  box-shadow: 0 20px 50px rgba(0, 0, 0, .3);
}
.rank-header, .rank-row {
  display: grid;
  grid-template-columns: 80px 1.5fr repeat(4, .7fr) 90px;
  align-items: center;
  padding: 14px 20px;
  gap: 10px;
}
.rank-header {
  color: rgba(255, 255, 255, .5);
  font-size: .76rem;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  border-bottom: 1px solid rgba(255, 255, 255, .1);
  margin-bottom: 8px;
}
.rank-row {
  border-radius: 12px;
  transition: var(--transition);
  margin-bottom: 4px;
}
.rank-row:hover { background: rgba(255, 255, 255, .06); transform: translateX(6px); }
.rank-num {
  font-size: 1rem;
  font-weight: 800;
  color: var(--accent);
  display: flex;
  align-items: center;
  gap: 8px;
}
.rank-num i { color: var(--accent); font-size: .9rem; }
.rank-team { font-weight: 700; font-size: .95rem; color: #fff; }
.rank-header span, .rank-row span { text-align: center; }
.rank-header span:first-child, .rank-row span:first-child { text-align: left; }
.rank-header span:nth-child(2), .rank-row span:nth-child(2) { text-align: left; }
.rank-row .rank-points {
  background: rgba(212, 168, 83, .15);
  color: var(--accent-light);
  font-weight: 800;
  font-size: 1.05rem;
  padding: 6px 10px;
  border-radius: 8px;
  text-align: center;
}

/* faq */
.faq-section { background: var(--bg-white); }
.faq-wrap { max-width: 820px; margin: 0 auto; }
.accordion { background: transparent; border: none; margin: 0; }
.accordion-item {
  margin-bottom: 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--bg-white);
  overflow: hidden;
  transition: var(--transition);
}
.accordion-item:hover { border-color: rgba(212, 168, 83, .4); box-shadow: var(--shadow-sm); }
.accordion-item .accordion-title {
  background: transparent;
  color: var(--text-main);
  font-size: 1rem;
  font-weight: 600;
  padding: 20px 26px;
  border: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: var(--transition);
}
.accordion-item .accordion-title::before, .accordion-item .accordion-title::after { display: none; }
.accordion-item .accordion-title .faq-icon {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: rgba(212, 168, 83, .12);
  color: var(--accent-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: .72rem;
  flex: 0 0 28px;
  margin-left: 14px;
  transition: var(--transition);
}
.accordion-item.is-active .accordion-title { color: var(--accent-dark); }
.accordion-item.is-active .accordion-title .faq-icon { transform: rotate(45deg); background: var(--accent); color: #fff; }
.accordion-item .accordion-content {
  background: transparent;
  color: var(--text-weak);
  font-size: .9rem;
  line-height: 1.8;
  padding: 4px 26px 24px;
  border: none;
}
.accordion-item .accordion-content:not(:last-child) { border: none; }

/* cta */
.cta-section {
  background: linear-gradient(135deg, var(--primary-dark), var(--primary-light));
  padding: 80px 0;
  position: relative;
  overflow: hidden;
}
.cta-section::before {
  content: "";
  position: absolute;
  right: -80px;
  top: -80px;
  width: 300px;
  height: 300px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(212, 168, 83, .2), transparent 65%);
}
.cta-box {
  max-width: 760px;
  margin: 0 auto;
  text-align: center;
  position: relative;
  z-index: 2;
}
.cta-box h2 { color: #fff; font-size: clamp(1.6rem, 3vw, 2.4rem); font-weight: 800; margin-bottom: 16px; }
.cta-box p { color: rgba(255, 255, 255, .65); font-size: .96rem; margin-bottom: 32px; line-height: 1.8; }
.cta-actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
.btn-light {
  background: #fff;
  color: var(--primary);
  box-shadow: 0 8px 28px rgba(255, 255, 255, .15);
}
.btn-light:hover { background: var(--accent-light); color: var(--primary-dark); transform: translateY(-2px); }

/* footer */
.site-footer {
  background: var(--primary-dark);
  padding: 50px 0 30px;
  color: rgba(255, 255, 255, .6);
  font-size: .85rem;
}
.footer-inner { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 20px; }
.footer-brand { display: flex; align-items: center; gap: 10px; font-size: 1.1rem; font-weight: 700; color: #fff; }
.footer-brand i { color: var(--accent); }
.footer-nav { display: flex; gap: 28px; }
.footer-nav a { color: rgba(255, 255, 255, .6); }
.footer-nav a:hover { color: var(--accent); }
.footer-copy { width: 100%; text-align: center; margin-top: 30px; padding-top: 22px; border-top: 1px solid rgba(255, 255, 255, .08); color: rgba(255, 255, 255, .35); font-size: .78rem; }

/* responsive */
@media (max-width: 1024px) {
  :root { --space-section: 80px; }
  .feature-media img { height: 360px; }
  .feature-content { padding-left: 0; margin-top: 30px; }
}
@media (max-width: 768px) {
  .nav-toggle { display: block; }
  .main-nav {
    display: none;
    width: 100%;
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
    padding-top: 16px;
    margin-top: 12px;
    border-top: 1px solid rgba(255, 255, 255, .1);
  }
  .header-inner { flex-wrap: wrap; padding: 16px 20px; border-radius: 20px; }
  .header-inner.nav-open .main-nav { display: flex; }
  .main-nav a { padding: 12px 4px; width: 100%; }
  .nav-cta { margin-left: auto; }
  .hero-section { min-height: 88vh; padding: 120px 0 70px; }
  .hero-actions .btn { width: 100%; }
  .stats-grid .cell { margin-bottom: 16px; }
  .category-card { height: 280px; }
  .rank-header, .rank-row { grid-template-columns: 60px 1.2fr repeat(3, .6fr) 70px; }
  .rank-header span:nth-child(5), .rank-row span:nth-child(5) { display: none; }
  .rank-header span:nth-child(6), .rank-row span:nth-child(6) { display: none; }
}
@media (max-width: 520px) {
  :root { --space-section: 65px; }
  .header-inner { padding: 14px 16px; }
  .logo { font-size: 1.15rem; }
  .nav-cta span.cta-text { display: none; }
  .nav-cta { padding: 10px 16px; }
  .hero-section h1 { font-size: 2rem; }
  .hero-section .hero-sub { font-size: 1.1rem; }
  .stat-card { padding: 24px 12px; }
  .stat-number { font-size: 1.6rem; }
  .news-item { padding: 18px; }
  .news-item h3 { font-size: 1rem; }
  .ranking-box { padding: 20px 12px; }
  .rank-header, .rank-row { grid-template-columns: 40px 1fr repeat(2, .6fr) 60px; gap: 6px; padding: 12px 10px; }
  .rank-header span:nth-child(3), .rank-row span:nth-child(3) { display: none; }
  .rank-header span:nth-child(4), .rank-row span:nth-child(4) { display: none; }
  .footer-inner { flex-direction: column; text-align: center; }
  .footer-nav { justify-content: center; }
  .cta-actions .btn { width: 100%; }
}

/* roulang page: category1 */
/* ===== 设计变量 ===== */
:root {
  --primary: #0a1628;
  --primary-2: #132642;
  --primary-3: #1c3457;
  --accent: #c9a86a;
  --accent-2: #b8934e;
  --accent-soft: rgba(201, 168, 106, 0.14);
  --bg: #f7f5f2;
  --bg-alt: #ffffff;
  --text: #16233a;
  --text-light: #66738a;
  --text-lighter: #92a0b5;
  --border: #e8e3dc;
  --border-dark: rgba(255, 255, 255, 0.08);
  --radius-lg: 20px;
  --radius-md: 14px;
  --radius-sm: 9px;
  --shadow: 0 4px 24px rgba(10, 22, 40, 0.06);
  --shadow-lg: 0 14px 44px rgba(10, 22, 40, 0.1);
  --shadow-accent: 0 8px 30px rgba(201, 168, 106, 0.3);
  --gradient: linear-gradient(135deg, #0a1628 0%, #1c3457 100%);
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}

/* ===== 基础重置 ===== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
}
body {
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.7;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img {
  max-width: 100%;
  height: auto;
  display: block;
}
a {
  text-decoration: none;
  color: inherit;
  transition: var(--transition);
}
ul, ol {
  list-style: none;
}
button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}
input, select, textarea {
  font-family: inherit;
}

/* ===== 容器 ===== */
.grid-container {
  max-width: 1200px;
  padding: 0 24px;
}
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ===== 通用板块 ===== */
.section {
  padding: 92px 0;
}
.section-alt {
  background: var(--bg-alt);
}
.section-head {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 56px;
}
.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--accent-soft);
  color: var(--accent-2);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 6px 18px;
  border-radius: 40px;
  margin-bottom: 18px;
}
.section-tag i {
  font-size: 12px;
}
.section-head h2 {
  font-size: 2.15rem;
  font-weight: 800;
  line-height: 1.3;
  color: var(--primary);
  letter-spacing: -0.02em;
  margin-bottom: 14px;
}
.section-head p {
  font-size: 1.02rem;
  color: var(--text-light);
  line-height: 1.7;
}
.section-head.light h2 {
  color: #fff;
}
.section-head.light p {
  color: rgba(255, 255, 255, 0.7);
}

/* ===== 按钮 ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 14px 32px;
  border-radius: 50px;
  font-weight: 700;
  font-size: 15px;
  line-height: 1;
  transition: var(--transition);
  white-space: nowrap;
  border: none;
}
.btn-primary {
  background: var(--accent);
  color: var(--primary);
  box-shadow: 0 4px 16px rgba(201, 168, 106, 0.3);
}
.btn-primary:hover {
  background: var(--accent-2);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: var(--shadow-accent);
}
.btn-outline {
  border: 2px solid rgba(255, 255, 255, 0.55);
  color: #fff;
  background: transparent;
  backdrop-filter: blur(4px);
}
.btn-outline:hover {
  border-color: #fff;
  background: rgba(255, 255, 255, 0.1);
  transform: translateY(-2px);
}
.btn-outline-dark {
  border: 2px solid var(--primary);
  color: var(--primary);
  background: transparent;
}
.btn-outline-dark:hover {
  background: var(--primary);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}
.btn-sm {
  padding: 10px 22px;
  font-size: 13px;
}

/* ===== 导航 ===== */
.site-header {
  position: sticky;
  top: 16px;
  z-index: 1000;
  padding: 0 20px;
  pointer-events: none;
}
.header-inner {
  pointer-events: auto;
  max-width: 1150px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(10, 22, 40, 0.88);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-radius: 56px;
  padding: 12px 26px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.22);
  transition: var(--transition);
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.22rem;
  font-weight: 800;
  color: #fff;
  letter-spacing: -0.01em;
  white-space: nowrap;
}
.logo i {
  color: var(--accent);
  font-size: 1.4rem;
}
.logo:hover {
  color: var(--accent);
}
.logo:hover i {
  transform: rotate(-8deg) scale(1.08);
}
.main-nav {
  display: flex;
  align-items: center;
  gap: 8px;
}
.main-nav a {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 9px 22px;
  border-radius: 40px;
  font-size: 14.5px;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.75);
  transition: var(--transition);
}
.main-nav a i {
  font-size: 13px;
  opacity: 0.7;
}
.main-nav a:hover {
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
}
.main-nav a.active {
  background: var(--accent);
  color: var(--primary);
  font-weight: 700;
  box-shadow: 0 4px 18px rgba(201, 168, 106, 0.35);
}
.main-nav a.active i {
  opacity: 1;
}
.nav-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--accent);
  color: var(--primary);
  font-weight: 700;
  font-size: 14px;
  padding: 10px 24px;
  border-radius: 40px;
  transition: var(--transition);
  white-space: nowrap;
  box-shadow: 0 4px 14px rgba(201, 168, 106, 0.3);
}
.nav-cta:hover {
  background: var(--accent-2);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(201, 168, 106, 0.4);
}
.nav-cta i {
  font-size: 13px;
}
.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
  font-size: 17px;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}
.nav-toggle:hover {
  background: rgba(255, 255, 255, 0.2);
}

/* ===== Hero ===== */
.category-hero {
  position: relative;
  padding: 180px 0 110px;
  margin-top: -90px;
  overflow: hidden;
  background-size: cover;
  background-position: center 20%;
}
.category-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, rgba(10, 22, 40, 0.94) 0%, rgba(10, 22, 40, 0.78) 45%, rgba(10, 22, 40, 0.55) 100%);
  z-index: 1;
}
.category-hero::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 140px;
  background: linear-gradient(to top, var(--bg) 0%, transparent 100%);
  z-index: 2;
  pointer-events: none;
}
.hero-content {
  position: relative;
  z-index: 3;
  max-width: 720px;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(201, 168, 106, 0.18);
  border: 1px solid rgba(201, 168, 106, 0.35);
  color: #e8d5b0;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.1em;
  padding: 8px 20px;
  border-radius: 40px;
  margin-bottom: 28px;
  backdrop-filter: blur(6px);
}
.hero-badge i {
  font-size: 12px;
  color: var(--accent);
}
.hero-content h1 {
  font-size: 3.3rem;
  font-weight: 900;
  color: #fff;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: 22px;
}
.hero-content h1 span {
  color: var(--accent);
  position: relative;
}
.hero-content p {
  font-size: 1.12rem;
  color: rgba(255, 255, 255, 0.8);
  line-height: 1.8;
  margin-bottom: 36px;
  max-width: 580px;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 52px;
}
.hero-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 0;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 18px;
  padding: 8px 0;
  backdrop-filter: blur(10px);
  max-width: 560px;
}
.hero-stat {
  flex: 1;
  min-width: 120px;
  padding: 16px 24px;
  text-align: center;
  border-right: 1px solid rgba(255, 255, 255, 0.08);
}
.hero-stat:last-child {
  border-right: none;
}
.hero-stat .num {
  display: block;
  font-size: 1.9rem;
  font-weight: 800;
  color: var(--accent);
  line-height: 1.2;
}
.hero-stat .label {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.6);
  margin-top: 4px;
}

/* ===== 赛事分类卡片 ===== */
.sport-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 26px;
}
.sport-card {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--bg-alt);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  transition: var(--transition);
  height: 100%;
  display: flex;
  flex-direction: column;
}
.sport-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(201, 168, 106, 0.4);
}
.sport-card-img {
  position: relative;
  height: 150px;
  overflow: hidden;
}
.sport-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}
.sport-card:hover .sport-card-img img {
  transform: scale(1.08);
}
.sport-card-img::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(10, 22, 40, 0.6), transparent 60%);
}
.sport-card-icon {
  position: absolute;
  bottom: -22px;
  left: 24px;
  width: 48px;
  height: 48px;
  border-radius: 14px;
  background: var(--accent);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 19px;
  box-shadow: 0 6px 20px rgba(201, 168, 106, 0.4);
  z-index: 2;
  border: 3px solid #fff;
}
.sport-card-body {
  padding: 34px 24px 24px;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.sport-card-body h3 {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 10px;
}
.sport-card-body p {
  font-size: 0.92rem;
  color: var(--text-light);
  line-height: 1.65;
  flex: 1;
  margin-bottom: 16px;
}
.sport-card-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13.5px;
  font-weight: 600;
  color: var(--accent-2);
}
.sport-card-link i {
  font-size: 12px;
  transition: transform 0.3s ease;
}
.sport-card-link:hover {
  color: var(--primary);
}
.sport-card-link:hover i {
  transform: translateX(4px);
}

/* ===== 排名榜 ===== */
.ranking-section {
  position: relative;
  padding: 100px 0;
  background-size: cover;
  background-position: center;
}
.ranking-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(10, 22, 40, 0.95) 0%, rgba(20, 38, 66, 0.92) 100%);
  z-index: 1;
}
.ranking-section .container {
  position: relative;
  z-index: 2;
}
.ranking-list {
  max-width: 860px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.ranking-item {
  display: flex;
  align-items: center;
  gap: 18px;
  background: rgba(255, 255, 255, 0.055);
  border: 1px solid rgba(255, 255, 255, 0.07);
  border-radius: var(--radius-md);
  padding: 18px 24px;
  backdrop-filter: blur(6px);
  transition: var(--transition);
}
.ranking-item:hover {
  background: rgba(255, 255, 255, 0.09);
  border-color: rgba(201, 168, 106, 0.3);
  transform: translateX(6px);
}
.rank-num {
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--accent);
  min-width: 52px;
  text-align: center;
  font-style: italic;
  letter-spacing: -0.02em;
}
.rank-info {
  flex: 0 0 auto;
  min-width: 190px;
}
.rank-info h3 {
  font-size: 1.05rem;
  font-weight: 600;
  color: #fff;
  margin-bottom: 2px;
  line-height: 1.3;
}
.rank-stars {
  color: var(--accent);
  font-size: 12px;
  letter-spacing: 2px;
}
.rank-bar-wrap {
  flex: 1;
  height: 8px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 10px;
  overflow: hidden;
  margin: 0 12px;
}
.rank-bar {
  height: 100%;
  border-radius: 10px;
  background: linear-gradient(90deg, var(--accent), #e8c87e);
  box-shadow: 0 0 12px rgba(201, 168, 106, 0.4);
  transition: width 0.8s ease;
}
.rank-value {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--accent);
  min-width: 48px;
  text-align: right;
}

/* ===== 观赛流程 ===== */
.steps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  position: relative;
}
.step-card {
  position: relative;
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 40px 30px 32px;
  text-align: center;
  transition: var(--transition);
  box-shadow: var(--shadow);
  overflow: hidden;
}
.step-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  opacity: 0;
  transition: var(--transition);
}
.step-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}
.step-card:hover::before {
  opacity: 1;
}
.step-num {
  position: absolute;
  top: 18px;
  right: 22px;
  font-size: 2.6rem;
  font-weight: 800;
  color: rgba(10, 22, 40, 0.06);
  line-height: 1;
  font-style: italic;
}
.step-icon {
  width: 68px;
  height: 68px;
  border-radius: 20px;
  background: var(--accent-soft);
  color: var(--accent-2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  margin: 0 auto 22px;
  transition: var(--transition);
}
.step-card:hover .step-icon {
  background: var(--accent);
  color: var(--primary);
  transform: scale(1.06);
  box-shadow: 0 8px 24px rgba(201, 168, 106, 0.35);
}
.step-card h3 {
  font-size: 1.18rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 12px;
}
.step-card p {
  font-size: 0.94rem;
  color: var(--text-light);
  line-height: 1.7;
}

/* ===== 精选攻略 ===== */
.article-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 26px;
}
.article-card {
  display: flex;
  gap: 22px;
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 18px;
  transition: var(--transition);
  box-shadow: var(--shadow);
}
.article-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
  border-color: rgba(201, 168, 106, 0.35);
}
.article-thumb {
  flex: 0 0 200px;
  height: 150px;
  border-radius: var(--radius-md);
  overflow: hidden;
  position: relative;
}
.article-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.article-card:hover .article-thumb img {
  transform: scale(1.06);
}
.article-thumb .cat-tag {
  position: absolute;
  top: 10px;
  left: 10px;
  background: rgba(10, 22, 40, 0.8);
  color: var(--accent);
  font-size: 11px;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 20px;
  backdrop-filter: blur(4px);
}
.article-body {
  flex: 1;
  display: flex;
  flex-direction: column;
  padding: 4px 0;
}
.article-body h3 {
  font-size: 1.08rem;
  font-weight: 700;
  color: var(--primary);
  line-height: 1.4;
  margin-bottom: 10px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.article-body p {
  font-size: 0.9rem;
  color: var(--text-light);
  line-height: 1.6;
  flex: 1;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 12px;
}
.article-meta {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 12.5px;
  color: var(--text-lighter);
}
.article-meta span {
  display: flex;
  align-items: center;
  gap: 5px;
}
.article-meta i {
  font-size: 12px;
  color: var(--accent-2);
}

/* ===== FAQ ===== */
.faq-list {
  max-width: 820px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.faq-item {
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: var(--transition);
  box-shadow: 0 2px 10px rgba(10, 22, 40, 0.03);
}
.faq-item:hover {
  border-color: rgba(201, 168, 106, 0.35);
  box-shadow: var(--shadow);
}
.faq-item summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 26px;
  font-size: 1.02rem;
  font-weight: 600;
  color: var(--primary);
  cursor: pointer;
  list-style: none;
  transition: var(--transition);
  user-select: none;
}
.faq-item summary::-webkit-details-marker {
  display: none;
}
.faq-item summary::after {
  content: '\f107';
  font-family: 'Font Awesome 6 Free';
  font-weight: 900;
  font-size: 16px;
  color: var(--accent-2);
  transition: transform 0.3s ease;
  flex-shrink: 0;
}
.faq-item details[open] summary::after {
  transform: rotate(180deg);
}
.faq-item details[open] summary {
  color: var(--accent-2);
  border-bottom: 1px solid var(--border);
}
.faq-answer {
  padding: 18px 26px 22px;
  font-size: 0.95rem;
  color: var(--text-light);
  line-height: 1.75;
  background: rgba(247, 245, 242, 0.5);
}

/* ===== CTA ===== */
.cta-section {
  position: relative;
  padding: 100px 0;
  background-size: cover;
  background-position: center;
  text-align: center;
  overflow: hidden;
}
.cta-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(10, 22, 40, 0.92), rgba(28, 52, 87, 0.85));
  z-index: 1;
}
.cta-content {
  position: relative;
  z-index: 2;
  max-width: 620px;
  margin: 0 auto;
}
.cta-content h2 {
  font-size: 2.4rem;
  font-weight: 800;
  color: #fff;
  line-height: 1.3;
  margin-bottom: 18px;
  letter-spacing: -0.02em;
}
.cta-content p {
  font-size: 1.06rem;
  color: rgba(255, 255, 255, 0.78);
  margin-bottom: 34px;
  line-height: 1.7;
}
.cta-actions {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

/* ===== 页脚 ===== */
.site-footer {
  background: var(--primary);
  padding: 60px 0 30px;
  color: rgba(255, 255, 255, 0.65);
}
.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
  padding-bottom: 30px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  margin-bottom: 24px;
  flex-wrap: wrap;
}
.footer-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.2rem;
  font-weight: 800;
  color: #fff;
  white-space: nowrap;
}
.footer-brand i {
  color: var(--accent);
  font-size: 1.35rem;
}
.footer-nav {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}
.footer-nav a {
  padding: 8px 18px;
  border-radius: 30px;
  font-size: 14px;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.65);
  border: 1px solid transparent;
}
.footer-nav a:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.06);
  border-color: rgba(255, 255, 255, 0.12);
}
.footer-copy {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.4);
  text-align: center;
  line-height: 1.8;
}

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
  .sport-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .article-card {
    flex-direction: column;
  }
  .article-thumb {
    flex-basis: auto;
    width: 100%;
    height: 180px;
  }
  .hero-content h1 {
    font-size: 2.8rem;
  }
  .hero-stat .num {
    font-size: 1.5rem;
  }
}
@media (max-width: 768px) {
  .section {
    padding: 70px 0;
  }
  .section-head {
    margin-bottom: 40px;
  }
  .section-head h2 {
    font-size: 1.7rem;
  }
  .site-header {
    top: 10px;
    padding: 0 12px;
  }
  .header-inner {
    padding: 10px 16px;
    border-radius: 40px;
  }
  .main-nav {
    display: none;
    position: absolute;
    top: calc(100% + 10px);
    left: 0;
    right: 0;
    background: rgba(10, 22, 40, 0.97);
    backdrop-filter: blur(20px);
    border-radius: 20px;
    padding: 16px;
    flex-direction: column;
    align-items: stretch;
    gap: 6px;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.4);
    border: 1px solid rgba(255, 255, 255, 0.08);
  }
  .main-nav.open {
    display: flex;
  }
  .main-nav a {
    padding: 13px 20px;
    border-radius: 14px;
    font-size: 15px;
    justify-content: flex-start;
  }
  .main-nav a.active {
    background: var(--accent);
    color: var(--primary);
  }
  .nav-cta .cta-text {
    display: none;
  }
  .nav-cta {
    width: 42px;
    height: 42px;
    padding: 0;
    justify-content: center;
    border-radius: 50%;
  }
  .nav-toggle {
    display: flex;
  }
  .category-hero {
    padding: 150px 0 90px;
    margin-top: -80px;
  }
  .hero-content h1 {
    font-size: 2.2rem;
  }
  .hero-content p {
    font-size: 1rem;
  }
  .hero-stats {
    flex-direction: column;
    gap: 0;
  }
  .hero-stat {
    border-right: none;
    border-bottom: 1px solid rgba(255, 255, 255, 0.07);
    padding: 14px 20px;
  }
  .hero-stat:last-child {
    border-bottom: none;
  }
  .steps-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .ranking-item {
    flex-wrap: wrap;
    gap: 12px;
    padding: 16px;
  }
  .rank-info {
    min-width: 140px;
    flex: 1;
  }
  .rank-bar-wrap {
    flex-basis: 100%;
    margin: 4px 0 0;
    order: 4;
  }
  .rank-value {
    min-width: auto;
  }
  .footer-inner {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }
  .footer-nav {
    justify-content: center;
  }
}
@media (max-width: 520px) {
  .grid-container,
  .container {
    padding: 0 16px;
  }
  .section {
    padding: 60px 0;
  }
  .sport-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .article-grid {
    grid-template-columns: 1fr;
  }
  .article-card {
    padding: 14px;
  }
  .article-thumb {
    height: 160px;
  }
  .hero-content h1 {
    font-size: 1.9rem;
  }
  .hero-actions .btn {
    width: 100%;
    justify-content: center;
  }
  .cta-content h2 {
    font-size: 1.8rem;
  }
  .cta-actions .btn {
    width: 100%;
    justify-content: center;
  }
  .faq-item summary {
    padding: 16px 18px;
    font-size: 0.96rem;
  }
  .faq-answer {
    padding: 14px 18px 18px;
  }
}

/* roulang page: article */
:root {
    --primary: #0B1F3A;
    --primary-light: #102B4E;
    --accent: #D4A853;
    --accent-hover: #E8C97A;
    --bg: #F4F6FA;
    --card-bg: #FFFFFF;
    --text: #1B2A3A;
    --text-weak: #5C6B7A;
    --border: #E2E8F0;
    --radius-lg: 20px;
    --radius-md: 14px;
    --radius-sm: 8px;
    --shadow: 0 6px 30px rgba(11, 31, 58, 0.07);
    --shadow-hover: 0 14px 44px rgba(11, 31, 58, 0.14);
    --font: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
    --transition: 0.25s ease;
}
*,
*::before,
*::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    margin: 0;
    font-family: var(--font);
    font-size: 16px;
    line-height: 1.7;
    color: var(--text);
    background: var(--bg);
    -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: inline-block; vertical-align: middle; }
a { color: inherit; text-decoration: none; transition: all var(--transition); }
ul, ol { list-style: none; margin: 0; padding: 0; }

/* ===== 阅读进度条 ===== */
.progress-bar {
    position: fixed;
    top: 0;
    left: 0;
    height: 3px;
    width: 0;
    background: linear-gradient(90deg, var(--accent), #E8C97A);
    z-index: 3000;
    transition: width 0.2s linear;
}

/* ===== 导航 ===== */
.site-header {
    position: fixed;
    top: 18px;
    left: 50%;
    transform: translateX(-50%);
    width: calc(100% - 40px);
    max-width: 1280px;
    z-index: 1000;
    background: rgba(11, 31, 58, 0.82);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    border-radius: 52px;
    border: 1px solid rgba(255, 255, 255, 0.10);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.18);
}
.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 24px;
}
.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 20px;
    font-weight: 800;
    color: #fff;
    letter-spacing: 0.5px;
    white-space: nowrap;
}
.logo i { color: var(--accent); font-size: 22px; }
.main-nav {
    display: flex;
    align-items: center;
    gap: 6px;
}
.main-nav a {
    padding: 8px 20px;
    border-radius: 30px;
    font-size: 15px;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.75);
    transition: all var(--transition);
}
.main-nav a:hover { color: #fff; background: rgba(255, 255, 255, 0.08); }
.main-nav a.active { background: var(--accent); color: #0B1F3A; font-weight: 600; }
.nav-cta {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 9px 22px;
    border-radius: 30px;
    font-size: 14px;
    font-weight: 600;
    color: var(--accent);
    border: 1.5px solid rgba(212, 168, 83, 0.4);
    background: rgba(212, 168, 83, 0.08);
    transition: all var(--transition);
}
.nav-cta:hover { background: var(--accent); color: #0B1F3A; }
.nav-toggle {
    display: none;
    background: none;
    border: none;
    color: #fff;
    font-size: 20px;
    cursor: pointer;
    padding: 8px 10px;
    border-radius: 8px;
    transition: background var(--transition);
}
.nav-toggle:hover { background: rgba(255, 255, 255, 0.08); }

/* ===== 通用区块 ===== */
.grid-container { max-width: 1280px; }
.section-head { text-align: center; margin-bottom: 42px; }
.section-head h2 {
    font-size: 32px;
    font-weight: 800;
    color: var(--primary);
    margin: 0 0 10px;
    letter-spacing: -0.3px;
}
.section-head p { color: var(--text-weak); font-size: 15px; margin: 0; }

.btn-accent {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--accent);
    color: #0B1F3A;
    font-weight: 600;
    padding: 13px 30px;
    border-radius: 30px;
    transition: all var(--transition);
    font-size: 15px;
    border: none;
    cursor: pointer;
    line-height: 1.4;
}
.btn-accent:hover {
    background: var(--accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(212, 168, 83, 0.35);
}
.btn-outline {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: transparent;
    color: var(--primary);
    font-weight: 500;
    padding: 13px 30px;
    border-radius: 30px;
    transition: all var(--transition);
    font-size: 15px;
    border: 1.5px solid var(--border);
    cursor: pointer;
}
.btn-outline:hover { border-color: var(--accent); color: var(--accent); background: rgba(212, 168, 83, 0.06); }

/* ===== 文章 Hero ===== */
.article-hero {
    position: relative;
    padding: 170px 0 80px;
    background: linear-gradient(135deg, rgba(11, 31, 58, 0.95), rgba(16, 43, 78, 0.82)), url('/assets/images/backpic/back-2.png') center/cover no-repeat;
    overflow: hidden;
}
.article-hero::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 80px;
    background: linear-gradient(to top, var(--bg), transparent);
}
.article-hero-inner { max-width: 900px; position: relative; z-index: 2; }
.hero-cat-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 7px 18px;
    background: rgba(212, 168, 83, 0.18);
    border: 1px solid rgba(212, 168, 83, 0.35);
    color: #E8C97A;
    border-radius: 30px;
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 1px;
    margin-bottom: 22px;
}
.article-hero-title {
    font-size: 42px;
    font-weight: 800;
    line-height: 1.25;
    color: #fff;
    margin: 0 0 18px;
    letter-spacing: -0.5px;
    word-break: break-word;
}
.article-hero-desc {
    font-size: 16px;
    color: rgba(255, 255, 255, 0.75);
    line-height: 1.7;
    margin: 0 0 28px;
    max-width: 700px;
}
.article-hero-meta {
    display: flex;
    align-items: center;
    gap: 24px;
    flex-wrap: wrap;
}
.meta-item {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.6);
}
.meta-item i { color: var(--accent); }

/* ===== 文章主体布局 ===== */
.article-body-section { padding: 60px 0 40px; }
.article-card {
    background: var(--card-bg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    padding: 42px 44px;
    border: 1px solid var(--border);
    transition: box-shadow var(--transition);
}
.breadcrumb {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 14px;
    color: var(--text-weak);
    margin-bottom: 26px;
    flex-wrap: wrap;
}
.breadcrumb a { color: var(--text-weak); }
.breadcrumb a:hover { color: var(--accent); }
.breadcrumb i { font-size: 10px; color: #B0B8C4; }
.breadcrumb span { color: var(--primary); font-weight: 500; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; max-width: 300px; }

.article-feature-image {
    border-radius: var(--radius-md);
    overflow: hidden;
    margin-bottom: 30px;
    box-shadow: var(--shadow);
}
.article-feature-image img { width: 100%; height: 380px; object-fit: cover; display: block; }

.article-excerpt {
    background: #FBF7EF;
    border-left: 4px solid var(--accent);
    padding: 18px 24px;
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
    margin-bottom: 30px;
    font-size: 16px;
    line-height: 1.7;
    color: #4A5A6A;
}

/* ===== 文章正文排版 ===== */
.article-content { font-size: 16.5px; line-height: 1.9; color: #2C3A4B; }
.article-content h2 {
    font-size: 26px;
    font-weight: 700;
    color: var(--primary);
    margin: 38px 0 16px;
    padding-bottom: 10px;
    border-bottom: 2px solid #F0F2F5;
    letter-spacing: -0.2px;
}
.article-content h3 { font-size: 21px; font-weight: 600; color: var(--primary); margin: 30px 0 12px; }
.article-content h4 { font-size: 18px; font-weight: 600; color: var(--primary); margin: 24px 0 10px; }
.article-content p { margin: 0 0 18px; }
.article-content ul,
.article-content ol { margin: 0 0 20px; padding-left: 22px; }
.article-content ul { list-style: disc; }
.article-content ol { list-style: decimal; }
.article-content ul li,
.article-content ol li { margin-bottom: 8px; padding-left: 4px; }
.article-content img { border-radius: 12px; margin: 24px 0; box-shadow: var(--shadow); }
.article-content blockquote {
    border-left: 4px solid var(--accent);
    background: #FBF7EF;
    padding: 20px 24px;
    margin: 26px 0;
    border-radius: 0 12px 12px 0;
    font-style: italic;
    color: #5A6A7A;
}
.article-content blockquote p { margin: 0; }
.article-content a { color: var(--accent); font-weight: 500; border-bottom: 1px solid transparent; }
.article-content a:hover { border-bottom-color: var(--accent); }
.article-content table { width: 100%; border-collapse: collapse; margin: 24px 0; font-size: 14px; }
.article-content table th,
.article-content table td { padding: 10px 14px; border: 1px solid var(--border); text-align: left; }
.article-content table th { background: #F4F6FA; font-weight: 600; }
.article-content pre {
    background: #0B1F3A;
    color: #E8ECF2;
    padding: 20px;
    border-radius: 12px;
    overflow-x: auto;
    font-size: 14px;
    line-height: 1.6;
    margin: 24px 0;
}

/* 文章标签 */
.article-tags {
    display: flex;
    align-items: center;
    gap: 10px;
    padding-top: 24px;
    margin-top: 32px;
    border-top: 1px solid var(--border);
    flex-wrap: wrap;
}
.tag-label {
    font-size: 14px;
    color: var(--text-weak);
    font-weight: 500;
    margin-right: 4px;
}
.tag {
    display: inline-block;
    padding: 5px 15px;
    background: #F4F6FA;
    border-radius: 20px;
    font-size: 13px;
    color: var(--text-weak);
    transition: all var(--transition);
    cursor: default;
}
.tag:hover { background: rgba(212, 168, 83, 0.12); color: var(--accent); }

/* 文章底部操作 */
.article-footer-actions {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
    margin-top: 30px;
    padding-top: 24px;
    border-top: 1px solid var(--border);
    flex-wrap: wrap;
}

/* ===== 侧边栏 ===== */
.article-sidebar { padding-left: 10px; }
.sidebar-card {
    background: var(--card-bg);
    border-radius: var(--radius-md);
    padding: 26px;
    border: 1px solid var(--border);
    box-shadow: var(--shadow);
    margin-bottom: 24px;
    transition: box-shadow var(--transition);
}
.sidebar-card:hover { box-shadow: var(--shadow-hover); }
.sidebar-card h3 {
    font-size: 17px;
    font-weight: 700;
    color: var(--primary);
    margin: 0 0 18px;
    padding-bottom: 12px;
    border-bottom: 2px solid #F0F2F5;
    display: flex;
    align-items: center;
    gap: 10px;
}
.sidebar-card h3 i { color: var(--accent); }

.sidebar-cat-list li { margin-bottom: 10px; }
.sidebar-cat-list a {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 16px;
    border-radius: 10px;
    background: #F8F9FC;
    transition: all var(--transition);
    font-weight: 500;
}
.sidebar-cat-list a:hover { background: rgba(212, 168, 83, 0.1); color: var(--accent); transform: translateX(4px); }
.sidebar-cat-list i { color: var(--accent); margin-right: 10px; }
.cat-badge {
    padding: 2px 10px;
    font-size: 11px;
    border-radius: 20px;
    background: rgba(212, 168, 83, 0.15);
    color: #B08A3A;
    font-weight: 600;
}

.side-post {
    display: block;
    padding: 14px 0;
    border-bottom: 1px solid #F0F2F5;
    transition: all var(--transition);
}
.side-post:first-child { padding-top: 0; }
.side-post:last-child { border-bottom: none; }
.side-post:hover { padding-left: 8px; }
.side-post-title {
    display: block;
    font-size: 15px;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 4px;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.side-post-date {
    font-size: 13px;
    color: var(--text-weak);
}

/* 侧边栏推荐卡片 */
.sidebar-promo .promo-box {
    border-radius: var(--radius-md);
    overflow: hidden;
    border: 1px solid var(--border);
}
.promo-box img { width: 100%; height: 150px; object-fit: cover; display: block; }
.promo-box .promo-body { padding: 18px; }
.promo-box h4 { font-size: 16px; font-weight: 700; color: var(--primary); margin: 0 0 8px; }
.promo-box p { font-size: 14px; color: var(--text-weak); margin: 0 0 16px; line-height: 1.6; }
.btn-sm { padding: 9px 22px; font-size: 13px; }

/* ===== 相关资讯 ===== */
.related-section { padding: 20px 0 70px; }
.related-grid { display: flex; }
.related-card {
    background: var(--card-bg);
    border-radius: var(--radius-md);
    border: 1px solid var(--border);
    box-shadow: var(--shadow);
    overflow: hidden;
    transition: all 0.3s ease;
    display: block;
    height: 100%;
}
.related-card:hover {
    box-shadow: var(--shadow-hover);
    transform: translateY(-6px);
    border-color: rgba(212, 168, 83, 0.3);
}
.related-card img { width: 100%; height: 170px; object-fit: cover; display: block; }
.related-card-body { padding: 20px; }
.related-cat {
    display: inline-block;
    padding: 3px 12px;
    font-size: 12px;
    border-radius: 20px;
    background: rgba(212, 168, 83, 0.12);
    color: #B08A3A;
    font-weight: 600;
    margin-bottom: 10px;
}
.related-card-title {
    font-size: 16px;
    font-weight: 700;
    color: var(--text);
    line-height: 1.45;
    margin: 0;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    transition: color var(--transition);
}
.related-card:hover .related-card-title { color: var(--accent); }

/* ===== CTA 区块 ===== */
.article-cta-section {
    padding: 80px 0;
    background: linear-gradient(135deg, #0B1F3A 0%, #102B4E 50%, #0B1F3A 100%);
    position: relative;
    overflow: hidden;
}
.article-cta-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('/assets/images/backpic/back-3.png') center/cover no-repeat;
    opacity: 0.15;
}
.article-cta-inner {
    text-align: center;
    max-width: 720px;
    margin: 0 auto;
    position: relative;
    z-index: 2;
}
.article-cta-title {
    font-size: 34px;
    color: #fff;
    font-weight: 800;
    margin-bottom: 16px;
    letter-spacing: -0.3px;
}
.article-cta-desc {
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 32px;
    font-size: 16px;
    line-height: 1.7;
}
.cta-actions {
    display: flex;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
}
.btn-white {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: #fff;
    color: var(--primary);
    font-weight: 600;
    padding: 13px 32px;
    border-radius: 30px;
    transition: all var(--transition);
    font-size: 15px;
    border: none;
    cursor: pointer;
}
.btn-white:hover { background: var(--accent); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(212, 168, 83, 0.3); }
.btn-ghost-white {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: transparent;
    color: #fff;
    font-weight: 500;
    padding: 13px 32px;
    border-radius: 30px;
    transition: all var(--transition);
    font-size: 15px;
    border: 1.5px solid rgba(255, 255, 255, 0.4);
    cursor: pointer;
}
.btn-ghost-white:hover { border-color: #fff; background: rgba(255, 255, 255, 0.06); }

/* ===== 内容未找到 ===== */
.not-found-section { padding: 200px 0 120px; background: var(--bg); }
.not-found-card {
    background: var(--card-bg);
    border-radius: var(--radius-lg);
    padding: 70px 40px;
    text-align: center;
    max-width: 540px;
    margin: 0 auto;
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
}
.not-found-card i { font-size: 52px; color: var(--accent); margin-bottom: 20px; }
.not-found-card h2 { font-size: 28px; color: var(--primary); margin: 0 0 12px; font-weight: 800; }
.not-found-card p { color: var(--text-weak); margin: 0 0 28px; }

/* ===== Footer ===== */
.site-footer {
    background: #0B1F3A;
    padding: 60px 0 32px;
    color: rgba(255, 255, 255, 0.65);
}
.footer-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-bottom: 32px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    margin-bottom: 24px;
}
.footer-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    color: #fff;
    font-size: 18px;
    font-weight: 700;
}
.footer-brand i { color: var(--accent); font-size: 20px; }
.footer-nav { display: flex; gap: 10px; }
.footer-nav a {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 18px;
    border-radius: 10px;
    color: rgba(255, 255, 255, 0.75);
    transition: all var(--transition);
}
.footer-nav a:hover { background: rgba(255, 255, 255, 0.06); color: #fff; }
.footer-copy {
    text-align: center;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.4);
}

/* ===== 响应式 ===== */
@media screen and (max-width: 1024px) {
    .article-card { padding: 32px; }
    .article-hero-title { font-size: 36px; }
    .article-sidebar { padding-left: 0; }
}
@media screen and (max-width: 768px) {
    .site-header { width: calc(100% - 24px); top: 12px; border-radius: 24px; }
    .header-inner { padding: 10px 16px; }
    .main-nav {
        display: none;
        position: absolute;
        top: 58px;
        left: 12px;
        right: 12px;
        background: rgba(11, 31, 58, 0.96);
        backdrop-filter: blur(18px);
        border-radius: 16px;
        padding: 12px;
        flex-direction: column;
        align-items: stretch;
        gap: 4px;
        box-shadow: 0 16px 40px rgba(0, 0, 0, 0.22);
        border: 1px solid rgba(255, 255, 255, 0.1);
    }
    .main-nav.open { display: flex; }
    .main-nav a { padding: 12px 16px; border-radius: 10px; color: #fff; font-size: 15px; }
    .main-nav a.active { background: var(--accent); color: #0B1F3A; }
    .nav-cta { display: none; }
    .nav-toggle { display: block; }
    .logo { font-size: 17px; }
    .logo i { font-size: 18px; }
    .article-hero { padding: 140px 0 60px; }
    .article-hero-title { font-size: 28px; }
    .article-hero-desc { font-size: 15px; }
    .article-body-section { padding: 40px 0 30px; }
    .article-card { padding: 24px 20px; }
    .article-feature-image img { height: 220px; }
    .article-footer-actions { flex-direction: column; align-items: stretch; gap: 12px; }
    .article-footer-actions .btn-outline,
    .article-footer-actions .btn-accent { justify-content: center; }
    .section-head h2 { font-size: 26px; }
    .footer-inner { flex-direction: column; gap: 20px; }
    .footer-nav { flex-wrap: wrap; justify-content: center; }
    .article-cta-title { font-size: 26px; }
    .related-card-title { font-size: 14px; }
}
@media screen and (max-width: 520px) {
    .article-hero-title { font-size: 24px; }
    .article-card { padding: 20px 16px; }
    .breadcrumb span { max-width: 160px; }
    .sidebar-card { padding: 20px; }
    .related-card img { height: 140px; }
    .article-cta-section { padding: 60px 0; }
    .article-cta-title { font-size: 22px; }
    .cta-actions { flex-direction: column; align-items: stretch; }
    .cta-actions .btn-white,
    .cta-actions .btn-ghost-white { justify-content: center; }
    .footer-nav a { padding: 8px 14px; font-size: 14px; }
}
@media screen and (max-width: 397px) {
    .logo { font-size: 15px; }
    .article-hero-meta { gap: 14px; }
}