/* roulang page: index */
/* ===== 设计变量与基础 Reset ===== */
:root {
  --color-primary: #00C48C;
  --color-primary-dark: #009A6B;
  --color-primary-light: rgba(0, 196, 140, 0.12);
  --color-accent: #FF7A00;
  --color-accent-dark: #E66D00;
  --color-bg-dark: #0F1512;
  --color-bg-dark-card: #1A231E;
  --color-bg-light: #F4F7F5;
  --color-card-light: #FFFFFF;
  --color-text-dark: #1A2E24;
  --color-text-light: #F4F7F5;
  --color-text-muted: #8A9B92;
  --color-border: rgba(0, 196, 140, 0.25);
  --color-border-light: rgba(0, 0, 0, 0.08);
  --radius-card: 16px;
  --radius-img: 12px;
  --radius-btn: 8px;
  --shadow-card: 0 2px 12px rgba(15, 21, 18, 0.06);
  --shadow-card-hover: 0 8px 30px rgba(0, 196, 140, 0.15);
  --shadow-dark: 0 4px 20px rgba(0, 0, 0, 0.3);
  --font-cn: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --font-num: "DIN Alternate", "Bebas Neue", Impact, sans-serif;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-cn);
  font-size: 1rem;
  line-height: 1.75;
  color: var(--color-text-dark);
  background: var(--color-bg-light);
  -webkit-font-smoothing: antialiased;
}
a { color: var(--color-primary); text-decoration: none; transition: color .25s ease; }
a:hover { color: var(--color-primary-dark); }
img { max-width: 100%; height: auto; display: block; }
button { font-family: inherit; }
.container { max-width: 1200px; padding-left: 16px; padding-right: 16px; }
section { position: relative; }

/* ===== 通用按钮 ===== */
.btn-mk { display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 0.625rem 1.25rem; border-radius: var(--radius-btn); font-size: 1rem; font-weight: 600; border: 0; cursor: pointer; transition: all .25s ease; min-width: 120px; }
.btn-mk-primary { background: var(--color-primary); color: #fff; box-shadow: 0 2px 10px rgba(0,196,140,.25); }
.btn-mk-primary:hover { background: var(--color-primary-dark); color: #fff; transform: translateY(-1px); box-shadow: 0 6px 20px rgba(0,154,107,.3); }
.btn-mk-accent { background: var(--color-accent); color: #fff; box-shadow: 0 2px 10px rgba(255,122,0,.25); }
.btn-mk-accent:hover { background: var(--color-accent-dark); color: #fff; transform: translateY(-1px); box-shadow: 0 6px 24px rgba(255,122,0,.35); }
.btn-mk-outline { background: transparent; border: 1px solid var(--color-primary); color: var(--color-primary); }
.btn-mk-outline:hover { background: var(--color-primary-light); color: var(--color-primary-dark); border-color: var(--color-primary-dark); }
.btn-mk-white { background: #fff; color: var(--color-primary-dark); }
.btn-mk-white:hover { background: #f0f0f0; color: var(--color-primary-dark); transform: translateY(-1px); }
.btn-mk-outline-light { background: transparent; border: 1px solid rgba(255,255,255,.4); color: var(--color-text-light); }
.btn-mk-outline-light:hover { border-color: var(--color-primary); color: var(--color-primary); background: rgba(0,196,140,.06); }
.btn-mk-lg { padding: 0.75rem 1.75rem; font-size: 1.0625rem; }
.btn-mk:focus-visible, a:focus-visible, button:focus-visible { outline: 3px solid rgba(0,196,140,.4); outline-offset: 2px; }

/* ===== 悬浮胶囊导航 ===== */
.site-nav {
  position: fixed;
  top: 16px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 1030;
  width: 90%;
  max-width: 1200px;
  background: rgba(15, 21, 18, 0.72);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 50px;
  padding: 8px 16px;
  transition: background .3s ease, box-shadow .3s ease;
  box-shadow: 0 4px 30px rgba(0,0,0,.25);
}
.site-nav.scrolled { background: rgba(15,21,18,.92); box-shadow: 0 6px 40px rgba(0,0,0,.4); }
.nav-inner { display: flex; align-items: center; justify-content: space-between; }
.nav-logo { display: flex; align-items: center; gap: 8px; color: var(--color-text-light); font-weight: 800; font-size: 1.25rem; letter-spacing: .5px; }
.nav-logo:hover { color: var(--color-primary); }
.nav-logo-icon { width: 34px; height: 34px; background: var(--color-primary); border-radius: 50%; display: flex; align-items: center; justify-content: center; color: #fff; font-size: .8rem; font-weight: 800; }
.nav-links { display: flex; align-items: center; gap: 4px; list-style: none; margin: 0; padding: 0; }
.nav-links a { display: inline-block; padding: 6px 18px; color: rgba(244,247,245,.85); font-size: .9375rem; font-weight: 500; border-radius: 30px; transition: all .25s ease; }
.nav-links a:hover { color: var(--color-primary); background: rgba(0,196,140,.1); }
.nav-links a.active { color: var(--color-primary); background: rgba(0,196,140,.14); font-weight: 600; }
.nav-cta { display: flex; align-items: center; gap: 10px; }
.nav-cta .btn-mk { min-width: 0; padding: 6px 20px; font-size: .875rem; }
.nav-toggle { display: none; background: none; border: 0; color: var(--color-text-light); font-size: 1.5rem; cursor: pointer; padding: 4px 8px; }
.nav-toggle:hover { color: var(--color-primary); }

/* ===== Hero 首屏 ===== */
.hero-section {
  min-height: 70vh;
  background: linear-gradient(to bottom, rgba(15,21,18,.55), rgba(15,21,18,.88)), url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
  display: flex;
  align-items: center;
  padding-top: 130px;
  padding-bottom: 0;
  position: relative;
  overflow: hidden;
}
.hero-section::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background-image: repeating-linear-gradient(90deg, rgba(255,255,255,.02) 0px, rgba(255,255,255,.02) 1px, transparent 1px, transparent 80px);
  pointer-events: none;
}
.hero-content { position: relative; z-index: 2; padding-bottom: 80px; }
.hero-badge {
  display: inline-flex; align-items: center; gap: 6px;
  background: rgba(255,255,255,.08);
  border: 1px solid rgba(255,255,255,.1);
  color: rgba(244,247,245,.9);
  padding: 5px 16px;
  border-radius: 30px;
  font-size: .8125rem;
  margin-bottom: 24px;
  letter-spacing: .5px;
}
.hero-badge i { color: var(--color-primary); }
.hero-title {
  font-size: clamp(2.2rem, 5vw, 3.4rem);
  font-weight: 800;
  line-height: 1.2;
  color: var(--color-text-light);
  margin-bottom: 16px;
  letter-spacing: 1px;
}
.hero-title .highlight { color: var(--color-primary); }
.hero-subtitle {
  font-size: 1.125rem;
  color: rgba(244,247,245,.8);
  max-width: 480px;
  margin-bottom: 36px;
  line-height: 1.6;
  font-weight: 400;
}
.hero-buttons { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 40px; }
.hero-trust { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 56px; }
.trust-tag {
  display: inline-flex; align-items: center; gap: 6px;
  background: rgba(255,255,255,.08);
  border: 1px solid rgba(255,255,255,.06);
  color: rgba(244,247,245,.85);
  padding: 6px 14px;
  border-radius: 6px;
  font-size: .8125rem;
  font-weight: 500;
}
.trust-tag i { color: var(--color-primary); font-size: .9rem; }

/* ===== 信任数据条 ===== */
.stats-strip {
  background: rgba(0,0,0,.25);
  border-top: 1px solid rgba(255,255,255,.06);
  border-radius: 16px 16px 0 0;
  padding: 36px 0 30px;
  position: relative;
  z-index: 2;
}
.stats-strip .row { align-items: center; }
.stats-item { text-align: center; padding: 8px 16px; }
.stats-number {
  font-family: var(--font-num);
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  font-weight: 700;
  color: var(--color-primary);
  letter-spacing: 1px;
  line-height: 1.2;
}
.stats-label { font-size: .875rem; color: rgba(244,247,245,.65); margin-top: 6px; }
.stats-divider { border-right: 1px solid rgba(255,255,255,.08); }
@media (max-width: 767px) {
  .stats-divider { border-right: 0; border-bottom: 1px solid rgba(255,255,255,.06); }
}

/* ===== 三步上手区 ===== */
.steps-section {
  background: var(--color-bg-light);
  padding-top: clamp(56px, 8vw, 96px);
  padding-bottom: clamp(56px, 8vw, 96px);
}
.steps-wrap { display: flex; gap: 60px; align-items: center; }
.steps-left { flex: 0 0 38%; }
.steps-left .section-tag { color: var(--color-primary-dark); font-weight: 600; font-size: .875rem; letter-spacing: 1px; margin-bottom: 12px; display: flex; align-items: center; gap: 8px; }
.steps-left .section-tag::before { content: ""; width: 24px; height: 2px; background: var(--color-primary); display: inline-block; }
.steps-left h2 { font-size: clamp(1.6rem, 3vw, 2.2rem); font-weight: 700; color: var(--color-text-dark); line-height: 1.3; margin-bottom: 16px; }
.steps-left p { color: var(--color-text-muted); font-size: .9375rem; line-height: 1.7; }
.steps-right { flex: 1; position: relative; }
.steps-right::before {
  content: "";
  position: absolute;
  left: 28px;
  top: 40px;
  bottom: 40px;
  width: 2px;
  background: repeating-linear-gradient(to bottom, var(--color-primary) 0px, var(--color-primary) 6px, transparent 6px, transparent 12px);
  opacity: .3;
}
.step-item {
  display: flex; gap: 20px;
  padding: 22px 0;
  position: relative;
  z-index: 1;
}
.step-number {
  flex: 0 0 56px;
  width: 56px; height: 56px;
  background: var(--color-primary);
  color: #fff;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-num);
  font-size: 1.25rem;
  font-weight: 700;
  box-shadow: 0 4px 14px rgba(0,196,140,.3);
  position: relative;
  z-index: 2;
}
.step-item:nth-child(2) .step-number { background: var(--color-accent); box-shadow: 0 4px 14px rgba(255,122,0,.25); }
.step-item:nth-child(3) .step-number { background: var(--color-text-dark); box-shadow: 0 4px 14px rgba(26,46,36,.3); }
.step-content { flex: 1; padding-top: 4px; }
.step-title { font-size: 1.125rem; font-weight: 700; color: var(--color-text-dark); margin-bottom: 6px; }
.step-desc { font-size: .875rem; color: var(--color-text-muted); line-height: 1.6; }

/* ===== 最新资讯区 ===== */
.news-section {
  background: var(--color-card-light);
  padding-top: clamp(56px, 8vw, 96px);
  padding-bottom: clamp(56px, 8vw, 96px);
}
.section-header { display: flex; align-items: flex-end; justify-content: space-between; margin-bottom: 40px; flex-wrap: wrap; gap: 16px; }
.section-header-left { }
.section-tag { color: var(--color-primary-dark); font-weight: 600; font-size: .875rem; letter-spacing: 1px; margin-bottom: 8px; display: flex; align-items: center; gap: 8px; }
.section-tag::before { content: ""; width: 24px; height: 2px; background: var(--color-primary); display: inline-block; }
.section-header h2 { font-size: clamp(1.6rem, 3vw, 2.2rem); font-weight: 700; color: var(--color-text-dark); margin: 0; }
.section-link { font-size: .875rem; color: var(--color-text-muted); display: inline-flex; align-items: center; gap: 6px; transition: color .25s ease; }
.section-link:hover { color: var(--color-primary); }
.news-card {
  display: flex;
  background: var(--color-card-light);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-card);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  transition: all .3s ease;
  margin-bottom: 16px;
  height: calc(100% - 16px);
  text-decoration: none;
  color: inherit;
}
.news-card:hover {
  box-shadow: var(--shadow-card-hover);
  transform: translateY(-4px);
  border-color: var(--color-border);
  color: inherit;
}
.news-thumb {
  flex: 0 0 180px;
  max-width: 180px;
  background: var(--color-primary-light);
  position: relative;
  overflow: hidden;
  display: flex; align-items: center; justify-content: center;
}
.news-thumb img { width: 100%; height: 100%; object-fit: cover; }
.news-thumb .thumb-placeholder { width: 100%; height: 100%; display: flex; align-items: center; justify-content: center; background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark)); color: #fff; font-size: 2rem; }
.news-cat {
  position: absolute;
  top: 10px; left: 10px;
  background: rgba(0,196,140,.9);
  color: #fff;
  font-size: .75rem;
  font-weight: 600;
  padding: 2px 10px;
  border-radius: 6px;
  backdrop-filter: blur(4px);
}
.news-body { flex: 1; padding: 20px 22px; display: flex; flex-direction: column; }
.news-meta { font-size: .8125rem; color: var(--color-text-muted); margin-bottom: 8px; display: flex; gap: 12px; align-items: center; }
.news-tag-label { background: var(--color-primary-light); color: var(--color-primary-dark); font-size: .75rem; font-weight: 600; padding: 2px 10px; border-radius: 6px; }
.news-title { font-size: 1.125rem; font-weight: 700; color: var(--color-text-dark); margin-bottom: 8px; line-height: 1.4; display: -webkit-box; -webkit-line-clamp: 1; -webkit-box-orient: vertical; overflow: hidden; }
.news-excerpt { font-size: .875rem; color: var(--color-text-muted); line-height: 1.6; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; margin-bottom: 12px; flex: 1; }
.news-footer { display: flex; align-items: center; justify-content: space-between; font-size: .8125rem; }
.news-date { color: var(--color-text-muted); display: inline-flex; align-items: center; gap: 5px; }
.news-more { color: var(--color-primary); font-weight: 600; }
.news-empty {
  text-align: center;
  padding: 60px 20px;
  background: var(--color-bg-light);
  border-radius: var(--radius-card);
  border: 1px dashed var(--color-border);
}
.news-empty i { font-size: 2.5rem; color: var(--color-primary); margin-bottom: 16px; display: block; }
.news-empty p { color: var(--color-text-muted); font-size: .9375rem; }

/* ===== 案例证明区 ===== */
.cases-section {
  background: var(--color-bg-dark);
  padding-top: clamp(56px, 8vw, 96px);
  padding-bottom: clamp(56px, 8vw, 96px);
}
.cases-section .section-tag { color: var(--color-primary); }
.cases-section .section-tag::before { background: var(--color-primary); }
.cases-section h2 { color: var(--color-text-light); }
.cases-section .section-link { color: rgba(244,247,245,.6); }
.cases-section .section-link:hover { color: var(--color-primary); }
.case-card {
  display: flex;
  background: var(--color-bg-dark-card);
  border: 1px solid rgba(255,255,255,.06);
  border-radius: var(--radius-card);
  overflow: hidden;
  margin-bottom: 24px;
  box-shadow: var(--shadow-dark);
  transition: box-shadow .3s ease;
}
.case-card:hover { box-shadow: 0 10px 40px rgba(0,0,0,.5); }
.case-card:nth-child(even) { flex-direction: row-reverse; }
.case-image { flex: 0 0 45%; max-width: 45%; position: relative; overflow: hidden; }
.case-image img { width: 100%; height: 100%; object-fit: cover; }
.case-image::after { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, transparent 60%, rgba(26,35,30,.5)); }
.case-card:nth-child(even) .case-image::after { background: linear-gradient(-90deg, transparent 60%, rgba(26,35,30,.5)); }
.case-content { flex: 1; padding: 36px 40px; display: flex; flex-direction: column; justify-content: center; }
.case-tag {
  display: inline-flex; align-items: center; gap: 6px;
  background: rgba(0,196,140,.15);
  color: var(--color-primary);
  font-size: .75rem; font-weight: 600;
  padding: 3px 12px;
  border-radius: 6px;
  margin-bottom: 16px;
  align-self: flex-start;
}
.case-title { font-size: 1.375rem; font-weight: 700; color: var(--color-text-light); margin-bottom: 10px; }
.case-desc { font-size: .875rem; color: rgba(244,247,245,.7); line-height: 1.7; margin-bottom: 18px; }
.case-data {
  font-family: var(--font-num);
  font-size: 2.4rem;
  font-weight: 700;
  color: var(--color-accent);
  line-height: 1.2;
  margin-bottom: 4px;
}
.case-data-label { font-size: .8125rem; color: rgba(244,247,245,.6); }
.case-points { list-style: none; padding: 0; margin: 18px 0 0; display: flex; gap: 20px; flex-wrap: wrap; }
.case-points li { display: flex; align-items: center; gap: 6px; font-size: .8125rem; color: rgba(244,247,245,.75); }
.case-points li i { color: var(--color-primary); font-size: .8rem; }

/* ===== FAQ 手风琴 ===== */
.faq-section {
  background: var(--color-bg-light);
  padding-top: clamp(56px, 8vw, 96px);
  padding-bottom: clamp(56px, 8vw, 96px);
}
.faq-section .container { max-width: 880px; }
.accordion-custom .accordion-item {
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-card) !important;
  margin-bottom: 12px;
  box-shadow: var(--shadow-card);
  overflow: hidden;
  background: var(--color-card-light);
}
.accordion-custom .accordion-item:last-child { margin-bottom: 0; }
.accordion-custom .accordion-button {
  font-weight: 600;
  font-size: 1rem;
  color: var(--color-text-dark);
  padding: 18px 22px;
  background: var(--color-card-light);
  box-shadow: none;
  position: relative;
}
.accordion-custom .accordion-button::after {
  font-family: "Font Awesome 6 Free";
  font-weight: 900;
  content: "\f078";
  background: none;
  width: auto;
  height: auto;
  color: var(--color-primary);
  font-size: .875rem;
  transition: transform .25s ease;
}
.accordion-custom .accordion-button:not(.collapsed) {
  color: var(--color-primary-dark);
  background: var(--color-primary-light);
}
.accordion-custom .accordion-button:not(.collapsed)::after { transform: rotate(180deg); }
.accordion-custom .accordion-button:focus { box-shadow: 0 0 0 3px rgba(0,196,140,.15); border-color: transparent; }
.accordion-custom .accordion-body {
  padding: 16px 22px 20px;
  color: var(--color-text-muted);
  font-size: .9375rem;
  line-height: 1.7;
  border-top: 1px solid var(--color-border-light);
  background: var(--color-card-light);
}

/* ===== CTA 立即开通 ===== */
.cta-section {
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  padding: clamp(64px, 8vw, 100px) 0;
  position: relative;
  overflow: hidden;
}
.cta-section::before {
  content: "";
  position: absolute;
  top: -40px; right: -40px;
  width: 200px; height: 200px;
  border: 2px solid rgba(255,255,255,.08);
  border-radius: 50%;
}
.cta-section::after {
  content: "";
  position: absolute;
  bottom: -60px; left: 30%;
  width: 160px; height: 160px;
  border: 2px solid rgba(255,255,255,.06);
  border-radius: 50%;
}
.cta-content { text-align: center; position: relative; z-index: 1; }
.cta-title { font-size: clamp(1.6rem, 4vw, 2.4rem); font-weight: 800; color: #fff; margin-bottom: 12px; line-height: 1.3; }
.cta-desc { font-size: 1rem; color: rgba(255,255,255,.85); max-width: 560px; margin: 0 auto 32px; line-height: 1.6; }
.cta-buttons { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }

/* ===== 页脚 ===== */
.site-footer {
  background: var(--color-bg-dark);
  padding-top: 64px;
  color: rgba(244,247,245,.7);
}
.footer-top { padding-bottom: 40px; }
.footer-brand { display: flex; align-items: center; gap: 10px; margin-bottom: 16px; color: var(--color-text-light); font-weight: 800; font-size: 1.25rem; }
.footer-brand:hover { color: var(--color-primary); }
.footer-brand-icon { width: 36px; height: 36px; background: var(--color-primary); border-radius: 50%; display: flex; align-items: center; justify-content: center; color: #fff; font-size: .85rem; font-weight: 800; }
.footer-desc { font-size: .875rem; line-height: 1.6; color: rgba(244,247,245,.55); margin-bottom: 20px; max-width: 280px; }
.footer-title { font-size: 1rem; font-weight: 600; color: var(--color-text-light); margin-bottom: 18px; position: relative; padding-bottom: 10px; }
.footer-title::after { content: ""; position: absolute; left: 0; bottom: 0; width: 24px; height: 2px; background: var(--color-primary); }
.footer-links { list-style: none; padding: 0; margin: 0; }
.footer-links li { margin-bottom: 10px; }
.footer-links a { color: rgba(244,247,245,.6); font-size: .875rem; transition: all .25s ease; display: inline-flex; align-items: center; gap: 6px; }
.footer-links a i { font-size: .7rem; color: var(--color-primary); }
.footer-links a:hover { color: var(--color-primary); padding-left: 4px; }
.footer-contact { list-style: none; padding: 0; margin: 0; }
.footer-contact li { display: flex; gap: 10px; align-items: center; margin-bottom: 12px; font-size: .875rem; color: rgba(244,247,245,.6); }
.footer-contact li i { color: var(--color-primary); width: 18px; text-align: center; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.06);
  padding: 20px 0;
  text-align: center;
  font-size: .8125rem;
  color: rgba(244,247,245,.45);
}
.footer-bottom a { color: rgba(244,247,245,.6); }
.footer-bottom a:hover { color: var(--color-primary); }

/* ===== 响应式 ===== */
@media (max-width: 991px) {
  .nav-links { display: none; }
  .nav-toggle { display: block; }
  .nav-cta .btn-mk { display: none; }
  .site-nav.menu-open { border-radius: 24px; background: rgba(15,21,18,.95); }
  .site-nav.menu-open .nav-links {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    padding: 16px 0 8px;
    gap: 4px;
  }
  .site-nav.menu-open .nav-links a { padding: 10px 20px; font-size: 1rem; text-align: center; }
  .site-nav.menu-open .nav-cta .btn-mk { display: inline-flex; margin: 8px 0 4px; }
  .site-nav.menu-open .nav-inner { flex-wrap: wrap; }
  .site-nav.menu-open .nav-toggle { order: 2; }
  .site-nav.menu-open .nav-links { order: 3; flex-basis: 100%; }
  .hero-section { min-height: auto; padding-top: 110px; }
  .hero-title { font-size: clamp(1.8rem, 6vw, 2.6rem); }
  .steps-wrap { flex-direction: column; gap: 36px; }
  .steps-left { flex: 1; text-align: center; }
  .steps-left .section-tag { justify-content: center; }
  .case-card, .case-card:nth-child(even) { flex-direction: column; }
  .case-image { flex: 0 0 auto; max-width: 100%; height: 220px; }
  .case-image::after { display: none; }
  .case-content { padding: 28px; }
  .case-data { font-size: 2rem; }
}
@media (max-width: 767px) {
  .site-nav { width: calc(100% - 24px); top: 8px; }
  .hero-section { padding-top: 100px; }
  .hero-buttons { flex-direction: column; align-items: stretch; }
  .hero-buttons .btn-mk { width: 100%; }
  .hero-trust { flex-direction: column; align-items: stretch; }
  .trust-tag { justify-content: center; }
  .news-card { flex-direction: column; }
  .news-thumb { flex: 0 0 auto; max-width: 100%; height: 160px; }
  .news-body { padding: 16px; }
  .section-header { flex-direction: column; align-items: flex-start; }
  .stats-item { padding: 12px 8px; }
  .case-content { padding: 24px 20px; }
  .case-points { flex-direction: column; gap: 8px; }
  .cta-buttons { flex-direction: column; align-items: stretch; }
  .cta-buttons .btn-mk { width: 100%; }
  .footer-top [class*="col-"] { margin-bottom: 32px; }
  .footer-title { margin-bottom: 14px; }
}
@media (max-width: 520px) {
  .hero-title { font-size: 1.8rem; }
  .hero-subtitle { font-size: 1rem; }
  .stats-number { font-size: 1.6rem; }
  .news-title { -webkit-line-clamp: 2; }
}

/* roulang page: category1 */
:root {
            --color-primary: #00C48C;
            --color-primary-dark: #009A6B;
            --color-primary-light: rgba(0, 196, 140, 0.12);
            --color-accent: #FF7A00;
            --color-bg-dark: #0F1512;
            --color-bg-dark-card: #1A231E;
            --color-bg-light: #F4F7F5;
            --color-card-light: #FFFFFF;
            --color-text-dark: #1A2E24;
            --color-text-light: #F4F7F5;
            --color-text-muted: #8A9B92;
            --color-border: rgba(0, 196, 140, 0.25);
            --color-border-light: rgba(0, 0, 0, 0.08);
            --shadow-dark-card: 0 4px 20px rgba(0, 0, 0, 0.3);
            --shadow-light-card: 0 2px 12px rgba(15, 21, 18, 0.06);
            --shadow-hover-card: 0 8px 30px rgba(0, 196, 140, 0.15);
            --radius-card: 16px;
            --radius-btn: 8px;
            --radius-img: 12px;
            --radius-tag: 6px;
            --space-section: clamp(56px, 8vw, 96px);
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            background: var(--color-bg-light);
            color: var(--color-text-dark);
            line-height: 1.75;
            font-size: 1rem;
            overflow-x: hidden;
        }

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

        a {
            text-decoration: none;
            color: inherit;
            transition: color .2s ease;
        }

        ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .container {
            max-width: 1200px;
            padding-left: 16px;
            padding-right: 16px;
        }

        .section-padding {
            padding-top: var(--space-section);
            padding-bottom: var(--space-section);
        }

        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--color-primary-light);
            color: var(--color-primary-dark);
            border-radius: var(--radius-tag);
            padding: 4px 12px;
            font-size: .8125rem;
            font-weight: 600;
            letter-spacing: .02em;
            margin-bottom: 12px;
        }

        .section-head {
            margin-bottom: 40px;
        }

        .section-head h2 {
            font-size: clamp(1.6rem, 3vw, 2.2rem);
            font-weight: 700;
            line-height: 1.3;
            color: var(--color-text-dark);
            margin-bottom: 8px;
        }

        .section-head p {
            color: var(--color-text-muted);
            font-size: .9375rem;
            margin-bottom: 0;
        }

        /* ===== 按钮系统 ===== */
        .btn-mk {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: .625rem 1.35rem;
            border-radius: var(--radius-btn);
            font-size: 1rem;
            font-weight: 600;
            line-height: 1.4;
            border: 1px solid transparent;
            cursor: pointer;
            transition: all .2s ease;
            min-width: 120px;
            text-align: center;
            white-space: nowrap;
        }

        .btn-mk-sm {
            padding: .4rem 1rem;
            font-size: .875rem;
            min-width: auto;
        }

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

        .btn-mk-primary:hover {
            background: var(--color-primary-dark);
            border-color: var(--color-primary-dark);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: 0 6px 20px rgba(0, 196, 140, .25);
        }

        .btn-mk-accent {
            background: var(--color-accent);
            color: #fff;
            border-color: var(--color-accent);
            box-shadow: 0 4px 16px rgba(255, 122, 0, .25);
        }

        .btn-mk-accent:hover {
            background: #e06a00;
            border-color: #e06a00;
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(255, 122, 0, .35);
        }

        .btn-mk-outline-light {
            background: transparent;
            border-color: rgba(255, 255, 255, .4);
            color: #fff;
        }

        .btn-mk-outline-light:hover {
            border-color: var(--color-primary);
            color: var(--color-primary);
            background: rgba(0, 196, 140, .08);
            transform: translateY(-1px);
        }

        .btn-mk-outline-dark {
            background: transparent;
            border-color: var(--color-primary);
            color: var(--color-primary-dark);
        }

        .btn-mk-outline-dark:hover {
            background: var(--color-primary-light);
            color: var(--color-primary-dark);
            transform: translateY(-1px);
        }

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

        .btn-mk-white:hover {
            background: #f0f5f2;
            color: var(--color-primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(0, 0, 0, .15);
        }

        /* ===== 悬浮胶囊导航 ===== */
        .site-nav {
            position: fixed;
            top: 16px;
            left: 50%;
            transform: translateX(-50%);
            z-index: 1030;
            width: 90%;
            max-width: 1200px;
            background: rgba(15, 21, 18, .72);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 1px solid rgba(255, 255, 255, .08);
            border-radius: 50px;
            padding: 8px 16px;
            box-shadow: 0 8px 30px rgba(0, 0, 0, .35);
        }

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

        .nav-logo {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-weight: 800;
            font-size: 1.15rem;
            color: var(--color-text-light);
            letter-spacing: .02em;
            flex-shrink: 0;
        }

        .nav-logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 32px;
            height: 32px;
            border-radius: 10px;
            background: var(--color-primary);
            color: #fff;
            font-weight: 800;
            font-size: 1rem;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 4px;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .nav-links li a {
            display: inline-block;
            padding: 8px 14px;
            font-size: .9375rem;
            font-weight: 500;
            color: rgba(244, 247, 245, .85);
            border-radius: 30px;
            transition: all .2s ease;
            position: relative;
        }

        .nav-links li a:hover {
            color: var(--color-primary);
            background: rgba(0, 196, 140, .08);
        }

        .nav-links li a.active {
            color: var(--color-primary);
            background: rgba(0, 196, 140, .12);
            font-weight: 600;
        }

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

        .nav-toggle {
            display: none;
            background: none;
            border: 1px solid rgba(255, 255, 255, .15);
            color: #fff;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            font-size: .875rem;
            cursor: pointer;
            align-items: center;
            justify-content: center;
        }

        /* ===== Page Hero ===== */
        .page-hero {
            position: relative;
            min-height: 520px;
            display: flex;
            align-items: center;
            background: var(--color-bg-dark);
            padding: 140px 0 80px;
            overflow: hidden;
        }

        .page-hero-bg {
            position: absolute;
            inset: 0;
            background-size: cover;
            background-position: center;
            opacity: .4;
        }

        .page-hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(15, 21, 18, .92) 10%, rgba(15, 21, 18, .55) 55%, rgba(15, 21, 18, .6) 100%);
        }

        .page-hero-content {
            position: relative;
            z-index: 2;
            max-width: 720px;
            margin-left: 0;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(255, 255, 255, .08);
            border: 1px solid rgba(255, 255, 255, .12);
            color: #fff;
            border-radius: 6px;
            padding: 5px 14px;
            font-size: .8125rem;
            font-weight: 500;
            margin-bottom: 20px;
        }

        .hero-badge i {
            color: var(--color-primary);
        }

        .page-hero-content h1 {
            font-size: clamp(2.4rem, 5vw, 3.4rem);
            font-weight: 800;
            line-height: 1.15;
            color: var(--color-text-light);
            margin-bottom: 14px;
        }

        .hero-sub {
            font-size: clamp(1.05rem, 2vw, 1.25rem);
            color: rgba(244, 247, 245, .9);
            font-weight: 500;
            margin-bottom: 12px;
            line-height: 1.5;
        }

        .hero-desc {
            color: rgba(244, 247, 245, .65);
            font-size: .9375rem;
            line-height: 1.7;
            max-width: 560px;
            margin-bottom: 24px;
        }

        .hero-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-bottom: 28px;
        }

        .trust-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(255, 255, 255, .08);
            border: 1px solid rgba(255, 255, 255, .08);
            color: rgba(244, 247, 245, .9);
            border-radius: 6px;
            padding: 5px 12px;
            font-size: .8125rem;
        }

        .trust-tag i {
            color: var(--color-primary);
        }

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

        /* ===== 分类说明区 ===== */
        .cat-intro {
            background: var(--color-bg-light);
            position: relative;
        }

        .cat-intro h2 {
            font-size: clamp(1.6rem, 3vw, 2.2rem);
            font-weight: 700;
            color: var(--color-text-dark);
            margin-bottom: 16px;
            line-height: 1.3;
        }

        .cat-intro p {
            color: var(--color-text-dark);
            font-size: 1rem;
            line-height: 1.8;
            margin-bottom: 16px;
            opacity: .88;
        }

        .intro-points {
            display: grid;
            gap: 10px;
            margin-top: 20px;
        }

        .intro-points li {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: .9375rem;
            font-weight: 500;
            color: var(--color-text-dark);
            background: var(--color-card-light);
            border: 1px solid var(--color-border-light);
            border-radius: 10px;
            padding: 10px 16px;
            box-shadow: var(--shadow-light-card);
        }

        .intro-points li i {
            color: var(--color-primary);
            flex-shrink: 0;
        }

        .intro-image-wrap {
            position: relative;
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-light-card);
            background: #e8efe9;
            min-height: 280px;
        }

        .intro-image-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            min-height: 280px;
        }

        .intro-image-wrap::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(15, 21, 18, .2), transparent 60%);
            pointer-events: none;
        }

        /* ===== 内容索引区 ===== */
        .cat-topics {
            background: #EAF0EC;
        }

        .topic-list {
            margin-top: 8px;
        }

        .topic-item {
            background: var(--color-card-light);
            border: 1px solid var(--color-border-light);
            border-radius: var(--radius-card);
            padding: 1.5rem 1.6rem;
            display: flex;
            gap: 1.25rem;
            height: 100%;
            transition: all .3s ease;
            box-shadow: var(--shadow-light-card);
        }

        .topic-item:hover {
            box-shadow: var(--shadow-hover-card);
            transform: translateY(-4px);
            border-color: var(--color-border);
        }

        .topic-num {
            font-family: "DIN Alternate", "Bebas Neue", Impact, sans-serif;
            font-size: 2.2rem;
            font-weight: 700;
            color: var(--color-primary);
            line-height: 1;
            flex-shrink: 0;
            padding-top: 4px;
        }

        .topic-body h3 {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--color-text-dark);
            margin-bottom: 6px;
        }

        .topic-body p {
            color: var(--color-text-muted);
            font-size: .9rem;
            line-height: 1.7;
            margin-bottom: 10px;
        }

        .topic-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: .875rem;
            font-weight: 600;
            color: var(--color-primary-dark);
        }

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

        /* ===== 统计条 ===== */
        .stat-bar {
            background: var(--color-bg-dark);
            padding: 56px 0;
            position: relative;
            overflow: hidden;
        }

        .stat-bar::before {
            content: "";
            position: absolute;
            inset: 0;
            background-image: radial-gradient(rgba(0, 196, 140, .12) 1px, transparent 1px);
            background-size: 28px 28px;
            opacity: .4;
        }

        .stat-bar .container {
            position: relative;
            z-index: 1;
        }

        .stat-item {
            text-align: center;
            padding: 10px;
        }

        .stat-num {
            font-family: "DIN Alternate", "Bebas Neue", Impact, sans-serif;
            font-size: clamp(2.4rem, 5vw, 3.2rem);
            font-weight: 700;
            color: var(--color-primary);
            line-height: 1;
            letter-spacing: .02em;
        }

        .stat-num span {
            color: var(--color-accent);
            font-size: .6em;
            margin-left: 2px;
        }

        .stat-label {
            color: rgba(244, 247, 245, .65);
            font-size: .9rem;
            margin-top: 8px;
        }

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

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

        .faq-section .accordion-item {
            background: var(--color-card-light);
            border: 1px solid var(--color-border-light);
            border-radius: var(--radius-card);
            margin-bottom: 12px;
            overflow: hidden;
            box-shadow: var(--shadow-light-card);
        }

        .faq-section .accordion-button {
            background: var(--color-card-light);
            color: var(--color-text-dark);
            font-weight: 600;
            font-size: 1rem;
            padding: 1.05rem 1.25rem;
            border: none;
            box-shadow: none;
            transition: all .2s ease;
        }

        .faq-section .accordion-button::after {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%2300C48C'%3e%3cpath fill-rule='evenodd' d='M1.646 4.646a.5.5 0 0 1 .708 0L8 10.293l5.646-5.647a.5.5 0 0 1 .708.708l-6 6a.5.5 0 0 1-.708 0l-6-6a.5.5 0 0 1 0-.708z'/%3e%3c/svg%3e");
            transition: transform .3s ease;
        }

        .faq-section .accordion-button:not(.collapsed) {
            background: rgba(0, 196, 140, .05);
            color: var(--color-primary-dark);
            box-shadow: none;
        }

        .faq-section .accordion-button:not(.collapsed)::after {
            transform: rotate(180deg);
        }

        .faq-section .accordion-button:focus {
            box-shadow: none;
            border-color: transparent;
        }

        .faq-section .accordion-button:hover {
            background: rgba(0, 196, 140, .04);
        }

        .faq-section .accordion-body {
            color: var(--color-text-muted);
            font-size: .9375rem;
            line-height: 1.8;
            padding: 1rem 1.25rem 1.25rem;
            border-top: 1px solid rgba(0, 0, 0, .03);
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
            padding: clamp(56px, 7vw, 80px) 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: "";
            position: absolute;
            right: -60px;
            top: -60px;
            width: 220px;
            height: 220px;
            border-radius: 50%;
            background: rgba(255, 255, 255, .08);
        }

        .cta-section::after {
            content: "";
            position: absolute;
            left: -40px;
            bottom: -80px;
            width: 180px;
            height: 180px;
            border-radius: 50%;
            background: rgba(255, 255, 255, .06);
        }

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

        .cta-section h2 {
            font-size: clamp(1.6rem, 3.2vw, 2.2rem);
            font-weight: 700;
            color: #fff;
            margin-bottom: 10px;
        }

        .cta-section p {
            color: rgba(255, 255, 255, .85);
            font-size: 1rem;
            margin-bottom: 28px;
            max-width: 560px;
            margin-left: auto;
            margin-right: auto;
        }

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

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--color-bg-dark);
            color: rgba(244, 247, 245, .7);
            padding: 64px 0 0;
            font-size: .875rem;
        }

        .footer-top {
            padding-bottom: 36px;
            border-bottom: 1px solid rgba(255, 255, 255, .06);
            margin-bottom: 20px;
        }

        .footer-brand {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 1.35rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 14px;
        }

        .footer-brand-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: var(--color-primary);
            color: #fff;
            font-weight: 800;
            font-size: 1.1rem;
        }

        .footer-desc {
            color: rgba(244, 247, 245, .55);
            font-size: .875rem;
            line-height: 1.7;
            margin-bottom: 16px;
            max-width: 320px;
        }

        .footer-title {
            font-size: .9375rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
            position: relative;
            padding-bottom: 8px;
        }

        .footer-title::after {
            content: "";
            position: absolute;
            left: 0;
            bottom: 0;
            width: 24px;
            height: 2px;
            background: var(--color-primary);
            border-radius: 2px;
        }

        .footer-links {
            display: grid;
            gap: 8px;
        }

        .footer-links a {
            color: rgba(244, 247, 245, .6);
            font-size: .875rem;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 2px 0;
            transition: all .2s ease;
        }

        .footer-links a i {
            font-size: .75rem;
            color: var(--color-primary);
        }

        .footer-links a:hover {
            color: var(--color-primary);
            padding-left: 4px;
        }

        .footer-contact {
            display: grid;
            gap: 10px;
        }

        .footer-contact li {
            display: flex;
            align-items: center;
            gap: 10px;
            color: rgba(244, 247, 245, .65);
            font-size: .875rem;
        }

        .footer-contact li i {
            color: var(--color-primary);
            width: 18px;
            text-align: center;
        }

        .footer-bottom {
            padding: 18px 0 22px;
            text-align: center;
            color: rgba(244, 247, 245, .4);
            font-size: .8125rem;
            border-top: 1px solid rgba(255, 255, 255, .04);
        }

        .footer-bottom span {
            opacity: .9;
        }

        /* ===== 响应式 ===== */
        @media (max-width: 991px) {
            .nav-links {
                position: absolute;
                top: calc(100% + 8px);
                left: 0;
                right: 0;
                background: rgba(15, 21, 18, .95);
                backdrop-filter: blur(12px);
                border-radius: 16px;
                padding: 12px;
                flex-direction: column;
                align-items: stretch;
                gap: 2px;
                display: none;
                border: 1px solid rgba(255, 255, 255, .08);
                box-shadow: 0 20px 40px rgba(0, 0, 0, .4);
            }

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

            .nav-links li a {
                display: block;
                padding: 12px 16px;
                font-size: .9375rem;
                border-radius: 10px;
            }

            .nav-toggle {
                display: inline-flex;
            }

            .page-hero {
                min-height: 460px;
                padding-top: 120px;
            }
        }

        @media (max-width: 767px) {
            .site-nav {
                width: calc(100% - 24px);
                top: 12px;
                padding: 8px 12px;
            }

            .nav-logo {
                font-size: 1rem;
            }

            .nav-logo-icon {
                width: 28px;
                height: 28px;
                font-size: .85rem;
            }

            .page-hero {
                min-height: 420px;
                padding: 110px 0 60px;
            }

            .page-hero-content h1 {
                font-size: 2rem;
            }

            .hero-sub {
                font-size: 1rem;
            }

            .hero-desc {
                font-size: .875rem;
            }

            .hero-actions .btn-mk {
                min-width: 105px;
                padding: .55rem 1.1rem;
                font-size: .9rem;
            }

            .topic-item {
                flex-direction: row;
                padding: 1.1rem 1.2rem;
            }

            .topic-num {
                font-size: 1.7rem;
            }

            .stat-num {
                font-size: 2rem;
            }

            .cta-section h2 {
                font-size: 1.5rem;
            }

            .footer-bottom span {
                font-size: .75rem;
            }

            .intro-image-wrap {
                min-height: 220px;
            }

            .intro-image-wrap img {
                min-height: 220px;
            }
        }

        @media (max-width: 575px) {
            .site-nav {
                border-radius: 30px;
            }

            .nav-cta .btn-mk {
                display: none;
            }

            .page-hero-content h1 {
                font-size: 1.8rem;
            }

            .hero-tags {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }

            .trust-tag {
                width: 100%;
            }

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

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

            .topic-list .col-6,
            .topic-list .col-lg-6 {
                width: 100%;
                flex: 0 0 100%;
            }

            .stat-item {
                padding: 6px;
            }

            .stat-num {
                font-size: 1.8rem;
            }

            .cta-actions {
                flex-direction: column;
                align-items: stretch;
                padding: 0 20px;
            }

            .cta-actions .btn-mk {
                width: 100%;
            }

            .footer-bottom span {
                display: block;
                line-height: 1.6;
            }
        }

/* roulang page: article */
:root {
  --color-primary: #00C48C;
  --color-primary-dark: #009A6B;
  --color-primary-light: rgba(0, 196, 140, 0.12);
  --color-accent: #FF7A00;
  --color-bg-dark: #0F1512;
  --color-bg-dark-card: #1A231E;
  --color-bg-light: #F4F7F5;
  --color-card-light: #FFFFFF;
  --color-text-dark: #1A2E24;
  --color-text-light: #F4F7F5;
  --color-text-muted: #8A9B92;
  --color-border: rgba(0, 196, 140, 0.25);
  --color-border-light: rgba(0, 0, 0, 0.08);
  --radius-btn: 8px;
  --radius-card: 16px;
  --radius-img: 12px;
  --shadow-card-light: 0 2px 12px rgba(15, 21, 18, 0.06);
  --shadow-card-dark: 0 4px 20px rgba(0, 0, 0, 0.3);
  --shadow-card-hover: 0 8px 30px rgba(0, 196, 140, 0.15);
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  background: var(--color-bg-light);
  color: var(--color-text-dark);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
a { text-decoration: none; transition: all .25s ease; }
a:focus-visible, button:focus-visible { outline: 2px solid var(--color-primary); outline-offset: 2px; }
img { max-width: 100%; }
ul, ol { list-style: none; }
.container { max-width: 1200px; padding-left: 16px; padding-right: 16px; }

.btn-mk {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 0.625rem 1.375rem;
  min-width: 120px;
  border-radius: var(--radius-btn);
  border: 1px solid transparent;
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.5;
  cursor: pointer;
  white-space: nowrap;
  user-select: none;
  transition: all .3s ease;
}
.btn-mk-primary { background: var(--color-primary); color: #fff !important; }
.btn-mk-primary:hover { background: var(--color-primary-dark); color: #fff; transform: translateY(-2px); box-shadow: 0 4px 16px rgba(0, 196, 140, 0.25); }
.btn-mk-outline { background: transparent; border-color: var(--color-primary); color: var(--color-primary); }
.btn-mk-outline:hover { background: var(--color-primary-light); color: var(--color-primary-dark); }
.btn-mk-sm { padding: 0.4rem 1.1rem; min-width: auto; font-size: 0.875rem; }
.btn-mk-white { background: #fff; color: var(--color-primary); border-color: #fff; }
.btn-mk-white:hover { background: #f0f0f0; color: var(--color-primary-dark); transform: translateY(-2px); }

/* ===== NAV ===== */
.site-nav {
  position: fixed;
  top: 16px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 1030;
  width: 90%;
  max-width: 1200px;
  background: rgba(15, 21, 18, 0.72);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 50px;
  padding: 10px 18px;
  box-shadow: 0 6px 24px rgba(0, 0, 0, 0.35);
}
.nav-inner { display: flex; align-items: center; justify-content: space-between; gap: 14px; }
.nav-logo {
  display: flex;
  align-items: center;
  gap: 9px;
  color: #fff;
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: .5px;
}
.nav-logo:hover { color: var(--color-primary); }
.nav-logo-icon {
  width: 32px;
  height: 32px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--color-primary);
  color: #fff;
  font-size: 1rem;
  font-weight: 800;
  border-radius: 8px;
}
.nav-links { display: flex; align-items: center; gap: 2px; margin: 0; padding: 0; }
.nav-links li { margin: 0; }
.nav-links a {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  padding: 8px 15px;
  border-radius: 50px;
  color: rgba(255, 255, 255, 0.85);
  font-size: 0.9375rem;
  font-weight: 500;
  line-height: 1.2;
}
.nav-links a:hover { background: rgba(255, 255, 255, 0.07); color: var(--color-primary); }
.nav-links a.active { color: var(--color-primary); }
.nav-links a.active::after {
  content: '';
  display: block;
  width: 18px;
  height: 2px;
  background: var(--color-primary);
  border-radius: 2px;
  margin-top: 3px;
}
.nav-cta { display: flex; align-items: center; gap: 10px; }
.nav-toggle {
  display: none;
  background: transparent;
  border: none;
  color: #fff;
  font-size: 1.3rem;
  cursor: pointer;
  padding: 6px 10px;
  border-radius: 8px;
}
.nav-toggle:hover { color: var(--color-primary); }

@media (max-width: 991.98px) {
  .site-nav { width: calc(100% - 24px); top: 12px; padding: 8px 14px; }
  .nav-toggle { display: inline-flex; }
  .nav-links {
    display: none;
    position: absolute;
    top: calc(100% + 8px);
    left: 0;
    right: 0;
    background: rgba(15, 21, 18, 0.96);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 16px;
    padding: 14px;
    flex-direction: column;
    align-items: stretch;
    gap: 6px;
  }
  .nav-links.open { display: flex; }
  .nav-links a { justify-content: center; border-radius: 8px; }
  .nav-links a.active { background: var(--color-primary-light); }
  .nav-links a.active::after { display: none; }
  .nav-logo-icon { width: 30px; height: 30px; font-size: 0.9rem; }
}

/* ===== ARTICLE HERO ===== */
.article-hero {
  position: relative;
  background-size: cover;
  background-position: center;
  background-color: var(--color-bg-dark);
  padding: 150px 0 110px;
  overflow: hidden;
}
.article-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(15, 21, 18, 0.82) 0%, rgba(15, 21, 18, 0.62) 50%, rgba(15, 21, 18, 0.9) 100%);
}
.article-hero .container { position: relative; z-index: 1; }

.breadcrumb-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  background: rgba(255, 255, 255, 0.07);
  display: inline-flex;
  padding: 8px 16px;
  border-radius: 50px;
  font-size: 0.8125rem;
  color: rgba(255, 255, 255, 0.75);
  margin-bottom: 22px;
}
.breadcrumb-bar a { color: rgba(255, 255, 255, 0.75); }
.breadcrumb-bar a:hover { color: var(--color-primary); }
.breadcrumb-sep { color: rgba(255, 255, 255, 0.4); margin: 0 2px; }
.breadcrumb-current { color: rgba(255, 255, 255, 0.92); font-weight: 500; }

.article-hero-title {
  font-size: clamp(1.8rem, 3.8vw, 2.7rem);
  font-weight: 800;
  line-height: 1.25;
  color: #fff;
  max-width: 860px;
  margin-bottom: 0;
}
.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  margin-top: 22px;
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.875rem;
}
.article-meta span { display: inline-flex; align-items: center; gap: 6px; }
.article-meta i { color: var(--color-primary); font-size: 0.95rem; }
.hero-seal {
  position: absolute;
  right: 40px;
  bottom: 36px;
  width: 68px;
  height: 68px;
  border: 2px solid #E23E3E;
  color: #E23E3E;
  font-size: 12px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  line-height: 1.4;
  border-radius: 4px;
  background: rgba(226, 62, 62, 0.06);
  transform: rotate(3deg);
  opacity: 0.85;
  z-index: 2;
  letter-spacing: 1px;
}
@media (max-width: 767px) {
  .hero-seal { display: none; }
}

/* ===== ARTICLE MAIN ===== */
.article-main { background: var(--color-bg-light); padding: 32px 0 80px; }
.article-card {
  background: var(--color-card-light);
  border-radius: 16px;
  padding: clamp(24px, 4vw, 48px);
  box-shadow: var(--shadow-card-light);
  margin-top: -52px;
  position: relative;
  border: 1px solid var(--color-border-light);
}

.article-excerpt {
  color: var(--color-text-muted);
  font-size: 0.95rem;
  line-height: 1.8;
  border-left: 3px solid var(--color-primary);
  background: var(--color-primary-light);
  padding: 14px 18px;
  border-radius: 0 10px 10px 0;
  margin-bottom: 28px;
}
.article-cover { margin-bottom: 32px; }
.article-cover img {
  width: 100%;
  border-radius: var(--radius-img);
  object-fit: cover;
  max-height: 420px;
  box-shadow: 0 4px 18px rgba(15, 21, 18, 0.08);
}

.article-content {
  font-size: 1.0625rem;
  line-height: 1.85;
  color: var(--color-text-dark);
}
.article-content h2 {
  font-size: 1.5rem;
  font-weight: 700;
  margin: 2.2rem 0 1rem;
  padding-left: 0.85rem;
  border-left: 4px solid var(--color-primary);
  line-height: 1.35;
}
.article-content h3 {
  font-size: 1.25rem;
  font-weight: 700;
  margin: 1.8rem 0 0.9rem;
  color: var(--color-text-dark);
}
.article-content p { margin-bottom: 1.6em; }
.article-content a { color: var(--color-primary); font-weight: 500; border-bottom: 1px solid transparent; }
.article-content a:hover { color: var(--color-primary-dark); border-bottom-color: var(--color-primary); }
.article-content strong { color: var(--color-text-dark); font-weight: 700; }
.article-content em { font-style: italic; }
.article-content blockquote {
  border-left: 4px solid var(--color-accent);
  background: rgba(255, 122, 0, 0.06);
  padding: 1rem 1.4rem;
  margin: 1.8rem 0;
  border-radius: 0 12px 12px 0;
  font-size: 1rem;
  color: var(--color-text-dark);
}
.article-content blockquote p { margin-bottom: 0; }
.article-content ul,
.article-content ol {
  padding-left: 1.4rem;
  margin: 0 0 1.6rem;
}
.article-content ul li { list-style: disc; margin-bottom: 0.5rem; }
.article-content ol li { list-style: decimal; margin-bottom: 0.5rem; }
.article-content img { display: block; max-width: 100%; height: auto; border-radius: var(--radius-img); margin: 1.8rem 0; box-shadow: 0 3px 12px rgba(15, 21, 18, 0.08); }
.article-content img + em, .article-content figcaption {
  display: block;
  text-align: center;
  font-size: 0.875rem;
  color: var(--color-text-muted);
  margin: -1rem 0 1.8rem;
  font-style: normal;
}
.article-content table { width: 100%; border-collapse: collapse; margin: 1.5rem 0; font-size: 0.9375rem; }
.article-content table th,
.article-content table td { border: 1px solid var(--color-border-light); padding: 10px 14px; }
.article-content table th { background: var(--color-primary-light); font-weight: 700; }
.article-content hr { border: none; border-top: 1px solid var(--color-border-light); margin: 2rem 0; }

/* ===== RELATED ===== */
.related-section {
  margin-top: 42px;
  padding-top: 34px;
  border-top: 1px solid var(--color-border-light);
}
.related-title {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--color-text-dark);
  margin-bottom: 22px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.related-title::before {
  content: '';
  width: 22px;
  height: 4px;
  background: var(--color-primary);
  border-radius: 4px;
  display: inline-block;
}
.related-list { display: flex; flex-direction: column; gap: 12px; }
.related-card {
  display: flex;
  align-items: center;
  gap: 16px;
  background: var(--color-bg-light);
  border: 1px solid var(--color-border-light);
  border-radius: 12px;
  padding: 12px 14px;
  transition: all .3s ease;
}
.related-card:hover {
  box-shadow: var(--shadow-card-hover);
  transform: translateY(-3px);
  border-color: var(--color-border);
  background: #fff;
}
.related-thumb {
  width: 90px;
  height: 64px;
  border-radius: 8px;
  overflow: hidden;
  flex-shrink: 0;
  background: var(--color-primary-light);
}
.related-thumb img { width: 100%; height: 100%; object-fit: cover; display: block; }
.related-info h3 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-text-dark);
  margin: 0 0 4px;
  line-height: 1.4;
}
.related-info h3:hover { color: var(--color-primary); }
.related-date { font-size: 0.8125rem; color: var(--color-text-muted); }
.related-date i { color: var(--color-primary); margin-right: 4px; }

/* ===== ARTICLE ACTIONS ===== */
.article-actions {
  margin-top: 40px;
  padding-top: 28px;
  border-top: 1px solid var(--color-border-light);
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  align-items: center;
  justify-content: center;
}
.article-end-note {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  text-align: center;
  margin-top: 18px;
}

/* ===== NOT FOUND ===== */
.not-found-box {
  text-align: center;
  padding: 80px 24px;
  background: var(--color-bg-light);
  border-radius: 16px;
  border: 1px dashed var(--color-border);
}
.not-found-icon {
  font-size: 3.5rem;
  color: var(--color-primary);
  margin-bottom: 18px;
}
.not-found-box p {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--color-text-dark);
  margin-bottom: 22px;
}

/* ===== FOOTER ===== */
.site-footer {
  background: var(--color-bg-dark);
  color: rgba(255, 255, 255, 0.7);
  padding: 70px 0 0;
  font-size: 0.9375rem;
}
.footer-top { padding-bottom: 44px; }
.footer-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: #fff;
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 14px;
}
.footer-brand:hover { color: var(--color-primary); }
.footer-brand-icon {
  width: 36px;
  height: 36px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--color-primary);
  color: #fff;
  border-radius: 9px;
  font-weight: 800;
  font-size: 1.1rem;
}
.footer-desc { color: rgba(255, 255, 255, 0.55); line-height: 1.8; margin-bottom: 16px; font-size: 0.875rem; }
.trust-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 12px;
  border-radius: 6px;
  font-size: 0.8125rem;
  color: rgba(255, 255, 255, 0.8);
}
.footer-title {
  color: #fff;
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 18px;
  position: relative;
  padding-bottom: 10px;
}
.footer-title::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 24px;
  height: 2px;
  background: var(--color-primary);
  border-radius: 2px;
}
.footer-links, .footer-contact { padding: 0; margin: 0; }
.footer-links li, .footer-contact li { margin-bottom: 10px; }
.footer-links a { color: rgba(255, 255, 255, 0.6); font-size: 0.9rem; display: inline-flex; align-items: center; gap: 6px; }
.footer-links a i { font-size: 0.75rem; color: var(--color-primary); }
.footer-links a:hover { color: var(--color-primary); padding-left: 3px; }
.footer-contact li { display: flex; align-items: center; gap: 10px; color: rgba(255, 255, 255, 0.6); font-size: 0.9rem; }
.footer-contact i { color: var(--color-primary); width: 18px; text-align: center; }
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 20px 0;
  text-align: center;
  font-size: 0.84375rem;
  color: rgba(255, 255, 255, 0.4);
}
.footer-bottom a { color: rgba(255, 255, 255, 0.5); }
.footer-bottom a:hover { color: var(--color-primary); }

/* ===== RESPONSIVE ===== */
@media (max-width: 767.98px) {
  .article-hero { padding: 130px 0 90px; }
  .article-card { padding: 22px 18px; margin-top: -36px; }
  .article-actions { flex-direction: column; width: 100%; }
  .article-actions .btn-mk { width: 100%; }
  .article-meta { gap: 12px; font-size: 0.8125rem; }
  .related-card { padding: 10px; }
  .related-thumb { width: 74px; height: 56px; }
}
@media (max-width: 575.98px) {
  .article-card { padding: 20px 14px; border-radius: 12px; }
  .article-hero { padding: 118px 0 74px; }
  .breadcrumb-bar { font-size: 0.75rem; padding: 6px 12px; }
  .article-hero-title { font-size: 1.55rem; }
  .related-thumb { width: 66px; height: 52px; }
  .related-card { gap: 10px; }
}

/* roulang page: category2 */
:root {
    --color-primary: #00C48C;
    --color-primary-dark: #009A6B;
    --color-primary-light: rgba(0, 196, 140, 0.12);
    --color-accent: #FF7A00;
    --color-bg-dark: #0F1512;
    --color-bg-dark-card: #1A231E;
    --color-bg-light: #F4F7F5;
    --color-card-light: #FFFFFF;
    --color-text-dark: #1A2E24;
    --color-text-light: #F4F7F5;
    --color-text-muted: #8A9B92;
    --color-border: rgba(0, 196, 140, 0.25);
    --color-border-light: rgba(0, 0, 0, 0.08);
    --font-cn: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
    --font-num: "DIN Alternate", "Bebas Neue", Impact, sans-serif;
    --radius-card: 16px;
    --radius-btn: 8px;
    --radius-img: 12px;
    --shadow-dark: 0 4px 20px rgba(0, 0, 0, 0.3);
    --shadow-light: 0 2px 12px rgba(15, 21, 18, 0.06);
    --shadow-hover: 0 8px 30px rgba(0, 196, 140, 0.15);
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
    font-family: var(--font-cn);
    background: var(--color-bg-light);
    color: var(--color-text-dark);
    line-height: 1.75;
    overflow-x: hidden;
}
a { text-decoration: none; color: inherit; transition: color 0.25s ease; }
img { max-width: 100%; display: block; }
button { font-family: inherit; border: none; background: none; cursor: pointer; }
ul, ol { list-style: none; }
.container { max-width: 1200px; padding-left: 16px; padding-right: 16px; }

/* 导航 */
.site-nav {
    position: fixed;
    top: 16px;
    left: 50%;
    transform: translateX(-50%);
    width: 90%;
    max-width: 1200px;
    z-index: 1030;
    background: rgba(15, 21, 18, 0.72);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 50px;
    padding: 8px 16px;
    transition: all 0.3s ease;
}
.nav-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
}
.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.15rem;
    font-weight: 800;
    color: var(--color-text-light);
    letter-spacing: 0.5px;
    white-space: nowrap;
}
.nav-logo-icon {
    width: 34px;
    height: 34px;
    background: var(--color-primary);
    color: #fff;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    font-size: 1.05rem;
}
.nav-links {
    display: flex;
    align-items: center;
    gap: 6px;
    margin: 0;
    padding: 0;
}
.nav-links li a {
    display: block;
    padding: 8px 18px;
    color: rgba(244, 247, 245, 0.85);
    font-size: 0.9375rem;
    font-weight: 500;
    border-radius: 50px;
    transition: all 0.25s ease;
}
.nav-links li a:hover {
    color: var(--color-primary);
    background: rgba(0, 196, 140, 0.08);
}
.nav-links li a.active {
    color: var(--color-primary);
    background: rgba(0, 196, 140, 0.12);
    box-shadow: 0 0 0 1px rgba(0, 196, 140, 0.25);
}
.nav-cta { display: flex; align-items: center; gap: 12px; }

/* 按钮 */
.btn-mk {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-btn);
    font-size: 1rem;
    font-weight: 600;
    line-height: 1;
    padding: 0.625rem 1.25rem;
    min-width: 120px;
    transition: all 0.28s ease;
}
.btn-mk-sm { padding: 0.5rem 1rem; font-size: 0.875rem; min-width: auto; }
.btn-mk-primary { background: var(--color-primary); color: #fff; }
.btn-mk-primary:hover { background: var(--color-primary-dark); color: #fff; transform: translateY(-1px); box-shadow: 0 6px 18px rgba(0, 196, 140, 0.3); }
.btn-mk-outline { background: transparent; border: 1px solid rgba(255, 255, 255, 0.4); color: var(--color-text-light); }
.btn-mk-outline:hover { border-color: var(--color-primary); color: var(--color-primary); background: rgba(0, 196, 140, 0.06); }
.btn-mk-ghost { background: transparent; border: 1px solid var(--color-primary); color: var(--color-primary); }
.btn-mk-ghost:hover { background: var(--color-primary-light); color: var(--color-primary-dark); }
.btn-mk-lg { padding: 0.75rem 1.75rem; font-size: 1.0625rem; }
.nav-toggle {
    display: none;
    background: none;
    color: var(--color-text-light);
    font-size: 1.25rem;
    padding: 8px 10px;
    border-radius: 8px;
}

/* Hero Banner */
.cat-hero {
    padding: 170px 0 90px;
    background: var(--color-bg-dark) url('/assets/images/backpic/back-1.webp') no-repeat center center/cover;
    position: relative;
    isolation: isolate;
}
.cat-hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(to bottom, rgba(15, 21, 18, 0.88) 0%, rgba(15, 21, 18, 0.72) 60%, rgba(15, 21, 18, 0.55) 100%);
    z-index: -1;
}
.cat-hero .container { position: relative; z-index: 2; }
.cat-hero .cat-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(0, 196, 140, 0.15);
    border: 1px solid rgba(0, 196, 140, 0.3);
    color: var(--color-primary);
    padding: 6px 16px;
    border-radius: 6px;
    font-size: 0.8125rem;
    font-weight: 600;
    margin-bottom: 20px;
}
.cat-hero h1 {
    font-size: clamp(2.2rem, 5vw, 3.2rem);
    font-weight: 800;
    color: var(--color-text-light);
    line-height: 1.2;
    margin-bottom: 16px;
}
.cat-hero .cat-hero-sub {
    font-size: 1.0625rem;
    color: rgba(244, 247, 245, 0.85);
    max-width: 680px;
    margin-bottom: 28px;
}
.cat-hero-stats {
    display: flex;
    flex-wrap: wrap;
    gap: 40px;
    margin-top: 44px;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
}
.cat-hero-stats .num {
    font-family: var(--font-num);
    font-size: 2.2rem;
    font-weight: 700;
    color: var(--color-primary);
    line-height: 1.1;
}
.cat-hero-stats .lbl {
    font-size: 0.875rem;
    color: rgba(244, 247, 245, 0.6);
    margin-top: 4px;
}

/* 分类说明区 */
.cat-intro {
    padding-top: clamp(56px, 8vw, 96px);
    padding-bottom: clamp(56px, 8vw, 96px);
    background: var(--color-bg-light);
}
.sec-head { margin-bottom: 40px; }
.sec-head .sec-tag {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--color-primary-dark);
    background: var(--color-primary-light);
    padding: 4px 14px;
    border-radius: 6px;
    font-size: 0.8125rem;
    font-weight: 600;
    margin-bottom: 12px;
}
.sec-head h2 { font-size: clamp(1.5rem, 3vw, 2.1rem); font-weight: 700; color: var(--color-text-dark); line-height: 1.3; }
.sec-head p { color: var(--color-text-muted); margin-top: 8px; }
.intro-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: center;
}
.intro-text p { margin-bottom: 1.5em; color: #3a4a41; font-size: 1rem; line-height: 1.85; }
.intro-text p:last-child { margin-bottom: 0; }
.intro-img { border-radius: var(--radius-card); overflow: hidden; box-shadow: var(--shadow-light); }
.intro-img img { width: 100%; height: 100%; object-fit: cover; }

/* 内容索引区 */
.cat-content-index {
    padding-top: clamp(56px, 8vw, 96px);
    padding-bottom: clamp(56px, 8vw, 96px);
    background: #fff;
}
.index-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
}
.index-item {
    display: flex;
    gap: 24px;
    background: var(--color-bg-light);
    border-radius: var(--radius-card);
    padding: 28px 32px;
    border: 1px solid var(--color-border-light);
    transition: all 0.3s ease;
    align-items: flex-start;
}
.index-item:hover {
    box-shadow: var(--shadow-hover);
    transform: translateY(-3px);
    border-color: var(--color-border);
}
.index-num {
    font-family: var(--font-num);
    font-size: 2.4rem;
    font-weight: 700;
    color: var(--color-primary);
    line-height: 1;
    min-width: 60px;
    padding-top: 4px;
}
.index-body h3 { font-size: 1.15rem; font-weight: 700; color: var(--color-text-dark); margin-bottom: 6px; }
.index-body p { color: var(--color-text-muted); font-size: 0.9375rem; margin-bottom: 0; }
.index-body .item-sec { display: inline-flex; align-items: center; gap: 6px; margin-top: 10px; color: var(--color-primary-dark); font-size: 0.8125rem; font-weight: 600; }

/* 特色服务 */
.cat-features {
    padding-top: clamp(56px, 8vw, 96px);
    padding-bottom: clamp(56px, 8vw, 96px);
    background: var(--color-bg-dark);
}
.cat-features .sec-head h2 { color: var(--color-text-light); }
.cat-features .sec-head p { color: rgba(244, 247, 245, 0.6); }
.feature-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
.feature-card {
    background: var(--color-bg-dark-card);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: var(--radius-card);
    padding: 32px 28px;
    transition: all 0.3s ease;
}
.feature-card:hover {
    border-color: rgba(0, 196, 140, 0.4);
    transform: translateY(-5px);
    box-shadow: 0 10px 32px rgba(0, 0, 0, 0.35);
}
.feature-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    background: rgba(0, 196, 140, 0.15);
    color: var(--color-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    margin-bottom: 18px;
}
.feature-card h3 { color: var(--color-text-light); font-size: 1.05rem; font-weight: 700; margin-bottom: 10px; }
.feature-card p { color: rgba(244, 247, 245, 0.65); font-size: 0.9rem; margin-bottom: 0; }

/* 场景 */
.cat-scene {
    padding-top: clamp(56px, 8vw, 96px);
    padding-bottom: clamp(56px, 8vw, 96px);
    background: var(--color-bg-light);
}
.scene-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}
.scene-card {
    display: flex;
    gap: 18px;
    background: #fff;
    border-radius: var(--radius-card);
    border: 1px solid var(--color-border-light);
    padding: 28px;
    box-shadow: var(--shadow-light);
    transition: all 0.3s ease;
}
.scene-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-4px); }
.scene-icon {
    flex-shrink: 0;
    width: 44px;
    height: 44px;
    border-radius: 10px;
    background: var(--color-primary-light);
    color: var(--color-primary-dark);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
}
.scene-card h3 { font-size: 1rem; font-weight: 700; color: var(--color-text-dark); margin-bottom: 5px; }
.scene-card p { color: var(--color-text-muted); font-size: 0.875rem; margin-bottom: 0; }

/* 数据块 */
.cat-data {
    padding: 40px 0;
    background: var(--color-bg-light);
    border-bottom: 1px solid var(--color-border-light);
}
.data-row {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    text-align: center;
}
.data-box .data-num {
    font-family: var(--font-num);
    font-size: 2.4rem;
    font-weight: 700;
    color: var(--color-primary);
    line-height: 1.2;
}
.data-box .data-txt { font-size: 0.875rem; color: var(--color-text-muted); margin-top: 6px; }

/* FAQ */
.cat-faq {
    padding-top: clamp(56px, 8vw, 96px);
    padding-bottom: clamp(56px, 8vw, 96px);
    background: #fff;
}
.accordion-mk .accordion-item {
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius-card) !important;
    margin-bottom: 12px;
    overflow: hidden;
    box-shadow: var(--shadow-light);
    background: var(--color-card-light);
}
.accordion-mk .accordion-button {
    padding: 20px 24px;
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-text-dark);
    background: #fff;
    box-shadow: none;
    gap: 12px;
}
.accordion-mk .accordion-button:not(.collapsed) {
    background: var(--color-primary-light);
    color: var(--color-primary-dark);
}
.accordion-mk .accordion-button::after {
    flex-shrink: 0;
    margin-left: auto;
    transition: transform 0.3s ease;
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%2300C48C'%3e%3cpath fill-rule='evenodd' d='M1.646 4.646a.5.5 0 0 1 .708 0L8 10.293l5.646-5.647a.5.5 0 0 1 .708.708l-6 6a.5.5 0 0 1-.708 0l-6-6a.5.5 0 0 1 0-.708z'/%3e%3c/svg%3e");
}
.accordion-mk .accordion-button:focus { box-shadow: 0 0 0 3px rgba(0, 196, 140, 0.15); }
.accordion-mk .accordion-body { padding: 16px 24px 24px; color: var(--color-text-muted); line-height: 1.8; font-size: 0.9375rem; }

/* CTA */
.cat-cta {
    padding: 0;
}
.cta-banner {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    padding: 72px 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}
.cta-banner h2 { color: #fff; font-size: clamp(1.5rem, 3vw, 2.2rem); font-weight: 800; margin-bottom: 12px; }
.cta-banner p { color: rgba(255, 255, 255, 0.85); font-size: 1rem; margin-bottom: 30px; max-width: 560px; margin-left: auto; margin-right: auto; }
.cta-banner .btn-cta-white { background: #fff; color: var(--color-primary-dark); }
.cta-banner .btn-cta-white:hover { background: #f0f5f2; color: var(--color-primary-dark); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2); }
.cta-banner .btn-cta-ghost { background: transparent; border: 1px solid rgba(255, 255, 255, 0.6); color: #fff; }
.cta-banner .btn-cta-ghost:hover { background: rgba(255, 255, 255, 0.1); color: #fff; }

/* 页脚 */
.site-footer {
    background: var(--color-bg-dark);
    padding-top: 60px;
    color: rgba(244, 247, 245, 0.75);
}
.footer-top { padding-bottom: 40px; border-bottom: 1px solid rgba(255, 255, 255, 0.06); }
.footer-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.2rem;
    font-weight: 800;
    color: #fff;
    margin-bottom: 14px;
}
.footer-brand-icon {
    width: 36px;
    height: 36px;
    background: var(--color-primary);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-weight: 800;
}
.footer-desc { color: rgba(244, 247, 245, 0.55); font-size: 0.875rem; line-height: 1.7; margin-bottom: 16px; max-width: 340px; }
.footer-title { color: #fff; font-size: 0.9375rem; font-weight: 700; margin-bottom: 16px; }
.footer-links li { margin-bottom: 10px; }
.footer-links li a { color: rgba(244, 247, 245, 0.6); font-size: 0.875rem; transition: all 0.25s ease; display: inline-flex; align-items: center; gap: 6px; }
.footer-links li a:hover { color: var(--color-primary); padding-left: 4px; }
.footer-contact li { display: flex; align-items: center; gap: 10px; color: rgba(244, 247, 245, 0.6); font-size: 0.875rem; margin-bottom: 12px; }
.footer-contact li i { color: var(--color-primary); width: 18px; text-align: center; }
.footer-bottom {
    padding: 20px 0;
    text-align: center;
    font-size: 0.8125rem;
    color: rgba(244, 247, 245, 0.45);
}
.trust-tag {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 0.75rem;
    padding: 4px 10px;
    border-radius: 6px;
    color: rgba(244, 247, 245, 0.7);
}

/* 面包屑 */
.page-breadcrumb {
    padding: 15px 0;
    background: #fff;
    border-bottom: 1px solid var(--color-border-light);
}
.page-breadcrumb .crumb-inner { font-size: 0.8125rem; color: var(--color-text-muted); display: flex; align-items: center; flex-wrap: wrap; gap: 6px; }
.page-breadcrumb a { color: var(--color-text-muted); }
.page-breadcrumb a:hover { color: var(--color-primary-dark); }
.page-breadcrumb .active { color: var(--color-text-dark); font-weight: 600; }
.page-breadcrumb i { font-size: 0.7rem; color: var(--color-primary); }

/* 流程 */
.cat-process {
    padding-top: clamp(56px, 8vw, 80px);
    padding-bottom: clamp(56px, 8vw, 80px);
    background: var(--color-bg-light);
}
.process-steps {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    position: relative;
}
.process-step {
    text-align: center;
    padding: 32px 20px;
    background: #fff;
    border-radius: var(--radius-card);
    border: 1px solid var(--color-border-light);
    box-shadow: var(--shadow-light);
    position: relative;
    transition: all 0.3s ease;
}
.process-step:hover { box-shadow: var(--shadow-hover); transform: translateY(-4px); }
.step-num {
    font-family: var(--font-num);
    font-size: 2.6rem;
    font-weight: 700;
    color: var(--color-primary);
    line-height: 1;
    opacity: 0.35;
    position: absolute;
    top: 16px;
    right: 20px;
}
.step-icon {
    width: 52px;
    height: 52px;
    border-radius: 14px;
    background: var(--color-primary-light);
    color: var(--color-primary-dark);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    margin: 0 auto 16px;
}
.process-step h3 { font-size: 1.05rem; font-weight: 700; margin-bottom: 8px; }
.process-step p { color: var(--color-text-muted); font-size: 0.875rem; margin-bottom: 0; }

/* 响应式 */
@media (max-width: 991px) {
    .nav-links {
        position: fixed;
        top: 80px;
        right: 5%;
        left: 5%;
        background: rgba(15, 21, 18, 0.98);
        flex-direction: column;
        align-items: stretch;
        padding: 16px;
        border-radius: 16px;
        gap: 4px;
        display: none;
        box-shadow: 0 12px 40px rgba(0, 0, 0, 0.45);
        border: 1px solid rgba(255, 255, 255, 0.08);
    }
    .nav-links.open { display: flex; }
    .nav-links li a { padding: 12px 16px; text-align: center; }
    .nav-toggle { display: inline-block; }
    .nav-cta .btn-mk-primary { display: none; }
    .feature-grid { grid-template-columns: repeat(2, 1fr); }
    .scene-grid { grid-template-columns: 1fr; }
    .intro-grid { grid-template-columns: 1fr; gap: 24px; }
    .data-row { grid-template-columns: repeat(2, 1fr); gap: 30px 16px; }
    .process-steps { grid-template-columns: 1fr; gap: 16px; }
}

@media (max-width: 767px) {
    .site-nav { width: calc(100% - 24px); top: 8px; border-radius: 12px; }
    .cat-hero { padding-top: 120px; padding-bottom: 60px; }
    .cat-hero h1 { font-size: 1.85rem; }
    .cat-hero-stats { gap: 24px; }
    .index-item { flex-direction: row; padding: 20px; gap: 16px; }
    .index-num { font-size: 1.8rem; min-width: 44px; }
    .feature-grid { grid-template-columns: 1fr; gap: 16px; }
    .content-index-grid { grid-template-columns: 1fr; }
    .data-row { grid-template-columns: repeat(2, 1fr); }
    .cat-hero-stats .num { font-size: 1.6rem; }
}

@media (max-width: 576px) {
    .scene-card { flex-direction: column; }
    .index-item { flex-direction: column; gap: 10px; }
    .index-num { font-size: 1.6rem; }
    .our-features-list { grid-template-columns: 1fr; }
}

/* 横向内容列表 */
.horiz-list { display: flex; flex-direction: column; gap: 16px; margin-top: 28px; }
.horiz-card {
    display: flex;
    gap: 20px;
    align-items: center;
    background: #fff;
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius-card);
    padding: 16px 20px;
    transition: all 0.3s ease;
}
.horiz-card:hover { box-shadow: var(--shadow-hover); transform: translateX(4px); border-color: var(--color-border); }
.horiz-card .hc-date { font-family: var(--font-num); font-size: 0.875rem; color: var(--color-primary); font-weight: 700; min-width: 80px; }
.horiz-card .hc-tag { background: var(--color-primary-light); color: var(--color-primary-dark); font-size: 0.75rem; padding: 2px 10px; border-radius: 6px; font-weight: 600; flex-shrink: 0; }
.horiz-card .hc-title { font-size: 0.9375rem; font-weight: 600; color: var(--color-text-dark); flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.horiz-card .hc-arrow { color: var(--color-text-muted); flex-shrink: 0; transition: all 0.25s ease; }
.horiz-card:hover .hc-arrow { color: var(--color-primary); transform: translateX(4px); }

/* 焦点可见性 */
a:focus-visible, button:focus-visible, .btn-mk:focus-visible {
    outline: 3px solid rgba(0, 196, 140, 0.4);
    outline-offset: 2px;
}

/* roulang page: category3 */
:root {
  --color-primary: #00C48C;
  --color-primary-dark: #009A6B;
  --color-primary-light: rgba(0, 196, 140, 0.12);
  --color-accent: #FF7A00;
  --color-bg-dark: #0F1512;
  --color-bg-dark-card: #1A231E;
  --color-bg-light: #F4F7F5;
  --color-card-light: #FFFFFF;
  --color-text-dark: #1A2E24;
  --color-text-light: #F4F7F5;
  --color-text-muted: #8A9B92;
  --color-border: rgba(0, 196, 140, 0.25);
  --color-border-light: rgba(0, 0, 0, 0.08);
  --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --font-num: "DIN Alternate", "Bebas Neue", Impact, sans-serif;
  --radius-card: 16px;
  --radius-btn: 8px;
  --radius-img: 12px;
  --radius-tag: 6px;
  --shadow-dark: 0 4px 20px rgba(0, 0, 0, 0.3);
  --shadow-light: 0 2px 12px rgba(15, 21, 18, 0.06);
  --shadow-hover: 0 8px 30px rgba(0, 196, 140, 0.15);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  background: var(--color-bg-light);
  color: var(--color-text-dark);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--color-primary-dark);
  text-decoration: none;
  transition: color 0.2s ease;
}

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

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

button,
input {
  font-family: inherit;
}

.container {
  max-width: 1200px;
  padding-left: 16px;
  padding-right: 16px;
}

.row {
  margin-left: -12px;
  margin-right: -12px;
}

.col,
.col-12,
.col-lg-2,
.col-lg-3,
.col-lg-4,
.col-lg-6,
.col-md-6 {
  padding-left: 12px;
  padding-right: 12px;
}

/* ===== 导航 ===== */
.site-nav {
  position: fixed;
  top: 16px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 1030;
  width: 90%;
  max-width: 1200px;
  background: rgba(15, 21, 18, 0.72);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 50px;
  padding: 8px 16px;
  transition: background 0.3s ease, box-shadow 0.3s ease;
}

.site-nav.scrolled {
  background: rgba(15, 21, 18, 0.92);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.4);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
}

.nav-logo {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--color-text-light);
  letter-spacing: 0.5px;
  white-space: nowrap;
}

.nav-logo:hover {
  color: var(--color-text-light);
}

.nav-logo-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 8px;
  background: var(--color-primary);
  color: #fff;
  font-family: var(--font-num);
  font-weight: 700;
  font-size: 1.0625rem;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-links li {
  margin: 0;
}

.nav-links a {
  position: relative;
  display: block;
  padding: 6px 2px;
  font-size: 0.9375rem;
  font-weight: 500;
  color: rgba(244, 247, 245, 0.85);
  transition: color 0.2s ease;
}

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

.nav-links a.active {
  color: var(--color-primary);
}

.nav-links a.active::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -2px;
  height: 2px;
  background: var(--color-primary);
  border-radius: 2px;
}

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

.btn-mk {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  font-size: 1rem;
  font-weight: 600;
  border-radius: var(--radius-btn);
  min-width: 120px;
  padding: 0.625rem 1.25rem;
  border: none;
  cursor: pointer;
  transition: background 0.2s ease, color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
  text-decoration: none;
  line-height: 1.4;
}

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

.btn-mk-primary:hover {
  background: var(--color-primary-dark);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(0, 196, 140, 0.35);
}

.btn-mk-outline {
  background: transparent;
  border: 1px solid var(--color-primary);
  color: var(--color-primary);
}

.btn-mk-outline:hover {
  background: var(--color-primary-light);
  color: var(--color-primary-dark);
}

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

.btn-mk-accent:hover {
  background: #e66e00;
  color: #fff;
  transform: translateY(-1px);
}

.btn-mk-sm {
  min-width: auto;
  padding: 0.375rem 0.875rem;
  font-size: 0.875rem;
}

.btn-mk-lg {
  min-width: 150px;
  padding: 0.75rem 1.75rem;
  font-size: 1.0625rem;
}

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

.btn-mk-white:hover {
  background: #e8f5ef;
  color: var(--color-primary-dark);
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
}

.nav-toggle {
  display: none;
  background: transparent;
  border: none;
  color: var(--color-text-light);
  font-size: 1.25rem;
  cursor: pointer;
  padding: 6px 10px;
  border-radius: 8px;
  transition: background 0.2s ease;
}

.nav-toggle:hover {
  background: rgba(255, 255, 255, 0.1);
}

/* ===== 分类页 Hero ===== */
.page-hero {
  position: relative;
  background-color: var(--color-bg-dark);
  background-image: linear-gradient(rgba(15, 21, 18, 0.82), rgba(15, 21, 18, 0.88)), url("/assets/images/backpic/back-2.webp");
  background-size: cover;
  background-position: center;
  padding: 160px 0 90px;
  overflow: hidden;
}

.page-hero::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: repeating-linear-gradient(135deg, rgba(255, 255, 255, 0.02) 0, rgba(255, 255, 255, 0.02) 1px, transparent 1px, transparent 8px);
  pointer-events: none;
}

.hero-stamp {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 2px solid #e8344e;
  color: #e8344e;
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  padding: 4px 10px;
  border-radius: 0;
  margin-bottom: 22px;
  background: transparent;
}

.page-hero .hero-content {
  position: relative;
  z-index: 2;
  max-width: 780px;
}

.page-hero .hero-h1 {
  font-size: clamp(2.2rem, 5vw, 3.2rem);
  font-weight: 800;
  color: var(--color-text-light);
  line-height: 1.2;
  letter-spacing: 0.02em;
  margin-bottom: 16px;
}

.page-hero .hero-sub {
  font-size: clamp(1rem, 2vw, 1.25rem);
  color: rgba(244, 247, 245, 0.9);
  line-height: 1.6;
  margin-bottom: 14px;
  font-weight: 500;
}

.page-hero .hero-desc {
  font-size: 0.9375rem;
  color: rgba(244, 247, 245, 0.65);
  max-width: 640px;
  line-height: 1.7;
  margin-bottom: 28px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 32px;
}

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

.trust-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.06);
  color: rgba(244, 247, 245, 0.85);
  font-size: 0.8125rem;
  padding: 5px 12px;
  border-radius: var(--radius-tag);
  line-height: 1.5;
  white-space: nowrap;
}

.trust-tag i {
  color: var(--color-primary);
}

/* ===== 通用板块 ===== */
.section {
  padding-top: clamp(56px, 8vw, 96px);
  padding-bottom: clamp(56px, 8vw, 96px);
}

.section-head {
  margin-bottom: 44px;
}

.section-title {
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 700;
  color: var(--color-text-dark);
  line-height: 1.3;
  margin-bottom: 10px;
  letter-spacing: 0.01em;
}

.section-sub {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  max-width: 680px;
  margin: 0 auto;
  line-height: 1.7;
}

/* ===== 分类说明区 ===== */
.about-section {
  background: var(--color-bg-light);
}

.about-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 48px;
  align-items: center;
}

.about-text p {
  font-size: 1rem;
  line-height: 1.75;
  color: var(--color-text-dark);
  margin-bottom: 18px;
}

.about-text p:last-child {
  margin-bottom: 0;
}

.about-feature-list {
  list-style: none;
  padding: 0;
  margin: 22px 0 0;
}

.about-feature-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 8px 0;
  font-size: 0.9375rem;
  color: var(--color-text-dark);
}

.about-feature-list li i {
  color: var(--color-primary);
  margin-top: 4px;
  font-size: 0.875rem;
}

.about-media {
  border-radius: var(--radius-card);
  overflow: hidden;
  box-shadow: var(--shadow-light);
}

.about-media img {
  width: 100%;
  height: 300px;
  object-fit: cover;
  border-radius: var(--radius-card);
}

/* ===== 权益卖点区 ===== */
.benefits-section {
  background: var(--color-bg-dark);
  color: var(--color-text-light);
}

.benefits-section .section-title {
  color: var(--color-text-light);
}

.benefits-section .section-sub {
  color: rgba(244, 247, 245, 0.7);
}

.benefits-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.benefit-card {
  background: var(--color-bg-dark-card);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: var(--radius-card);
  padding: 28px 22px;
  transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
  box-shadow: var(--shadow-dark);
  height: 100%;
}

.benefit-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-color: var(--color-border);
}

.benefit-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: var(--color-primary-light);
  color: var(--color-primary);
  font-size: 1.25rem;
  margin-bottom: 18px;
}

.benefit-card h3 {
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--color-text-light);
  margin-bottom: 8px;
}

.benefit-card p {
  font-size: 0.875rem;
  color: rgba(244, 247, 245, 0.6);
  line-height: 1.65;
  margin-bottom: 0;
}

.benefit-stat {
  display: flex;
  align-items: baseline;
  gap: 4px;
  margin-top: 14px;
}

.benefit-stat .num {
  font-family: var(--font-num);
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--color-accent);
}

.benefit-stat .label {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
}

/* ===== 场景区 ===== */
.scenario-section {
  background: var(--color-bg-light);
}

.scenario-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 48px;
  align-items: center;
}

.scenario-media {
  border-radius: var(--radius-card);
  overflow: hidden;
  box-shadow: var(--shadow-light);
}

.scenario-media img {
  width: 100%;
  height: 320px;
  object-fit: cover;
  border-radius: var(--radius-card);
}

.scenario-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.scenario-list li {
  display: flex;
  gap: 16px;
  padding: 18px 0;
  border-bottom: 1px solid var(--color-border-light);
}

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

.scenario-num {
  font-family: var(--font-num);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1.2;
  min-width: 44px;
}

.scenario-item h3 {
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--color-text-dark);
  margin-bottom: 4px;
}

.scenario-item p {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  line-height: 1.65;
  margin-bottom: 0;
}

/* ===== 流程区 ===== */
.steps-section {
  background: var(--color-bg-light);
  padding-top: 0;
}

.steps-section .section-head {
  text-align: center;
}

.steps-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  counter-reset: step;
}

.step-card {
  position: relative;
  background: var(--color-card-light);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-card);
  padding: 36px 28px 28px;
  box-shadow: var(--shadow-light);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  height: 100%;
}

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

.step-num {
  font-family: var(--font-num);
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1;
  margin-bottom: 16px;
  display: block;
}

.step-divider {
  position: absolute;
  top: 50%;
  right: -24px;
  width: 16px;
  height: 2px;
  background: var(--color-border);
  display: none;
}

.step-card h3 {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--color-text-dark);
  margin-bottom: 8px;
}

.step-card p {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  line-height: 1.65;
  margin-bottom: 0;
}

.step-icon {
  position: absolute;
  top: 32px;
  right: 24px;
  font-size: 1.5rem;
  color: var(--color-primary);
  opacity: 0.35;
}

/* ===== FAQ区 ===== */
.faq-section {
  background: var(--color-bg-light);
  padding-top: 0;
}

.faq-wrap {
  max-width: 860px;
  margin: 0 auto;
}

.faq-item {
  background: var(--color-card-light);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-light);
  margin-bottom: 12px;
  overflow: hidden;
  transition: box-shadow 0.3s ease, border-color 0.3s ease;
}

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

.faq-item .accordion-button {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--color-card-light);
  border: none;
  padding: 20px 24px;
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-text-dark);
  cursor: pointer;
  text-align: left;
  border-radius: var(--radius-card);
  transition: background 0.2s ease, color 0.2s ease;
}

.faq-item .accordion-button:hover {
  color: var(--color-primary-dark);
}

.faq-item .accordion-button:focus {
  outline: none;
  box-shadow: none;
}

.faq-item .accordion-button:not(.collapsed) {
  background: var(--color-card-light);
  color: var(--color-primary-dark);
  border-bottom: 1px solid var(--color-border-light);
  border-radius: var(--radius-card) var(--radius-card) 0 0;
}

.faq-icon {
  margin-left: 12px;
  color: var(--color-primary);
  font-size: 0.875rem;
  transition: transform 0.3s ease;
  flex-shrink: 0;
}

.accordion-button:not(.collapsed) .faq-icon {
  transform: rotate(90deg);
}

.faq-answer {
  padding: 16px 24px 20px;
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  line-height: 1.7;
}

/* ===== CTA区 ===== */
.cta-section {
  background: var(--color-bg-dark);
  padding: 0;
}

.cta-banner {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  border-radius: 0;
  padding: clamp(48px, 7vw, 80px) 0;
  text-align: center;
}

.cta-banner h2 {
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 800;
  color: #fff;
  margin-bottom: 12px;
  letter-spacing: 0.01em;
}

.cta-banner p {
  font-size: 1rem;
  color: rgba(255, 255, 255, 0.88);
  max-width: 560px;
  margin: 0 auto 28px;
  line-height: 1.65;
}

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

/* ===== 页脚 ===== */
.site-footer {
  background: var(--color-bg-dark);
  color: rgba(244, 247, 245, 0.7);
  padding-top: 64px;
}

.footer-top {
  padding-bottom: 40px;
}

.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 1.375rem;
  font-weight: 800;
  color: var(--color-text-light);
  margin-bottom: 14px;
}

.footer-brand:hover {
  color: var(--color-text-light);
}

.footer-brand-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: 8px;
  background: var(--color-primary);
  color: #fff;
  font-family: var(--font-num);
  font-weight: 700;
  font-size: 1.125rem;
}

.footer-desc {
  font-size: 0.875rem;
  line-height: 1.7;
  color: rgba(244, 247, 245, 0.55);
  margin-bottom: 16px;
  max-width: 300px;
}

.footer-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-text-light);
  margin-bottom: 14px;
  letter-spacing: 0.02em;
}

.footer-links,
.footer-contact {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-links li,
.footer-contact li {
  margin-bottom: 8px;
}

.footer-links a {
  color: rgba(244, 247, 245, 0.6);
  font-size: 0.875rem;
  transition: color 0.2s ease, padding-left 0.2s ease;
}

.footer-links a i {
  font-size: 0.75rem;
  margin-right: 4px;
  color: var(--color-primary);
}

.footer-links a:hover {
  color: var(--color-primary);
  padding-left: 4px;
}

.footer-contact li {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.875rem;
  color: rgba(244, 247, 245, 0.6);
}

.footer-contact i {
  color: var(--color-primary);
  width: 16px;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 18px 0 22px;
  text-align: center;
  font-size: 0.8125rem;
  color: rgba(244, 247, 245, 0.45);
}

/* ===== 响应式 ===== */
@media (max-width: 991.98px) {
  .benefits-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

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

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

  .step-divider {
    display: none;
  }

  .nav-links {
    display: none;
    width: 100%;
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
    padding: 16px 8px 8px;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    margin-top: 8px;
  }

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

  .nav-links a {
    width: 100%;
    padding: 8px 4px;
    font-size: 1rem;
  }

  .nav-toggle {
    display: inline-block;
  }

  .nav-cta .btn-mk-sm {
    display: none;
  }

  .site-nav {
    width: calc(100% - 24px);
    border-radius: 18px;
    top: 12px;
  }

  .page-hero {
    padding: 150px 0 70px;
  }
}

@media (max-width: 767.98px) {
  .benefits-grid {
    grid-template-columns: 1fr;
  }

  .hero-tags {
    flex-direction: column;
    align-items: flex-start;
  }

  .page-hero .hero-h1 {
    font-size: 1.9rem;
  }

  .page-hero .hero-sub {
    font-size: 1rem;
  }

  .hero-actions .btn-mk {
    min-width: 130px;
  }

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

  .cta-actions .btn-mk {
    width: 100%;
    max-width: 300px;
  }

  .footer-top [class*="col-"] {
    margin-bottom: 28px;
  }
}

@media (max-width: 575.98px) {
  .section {
    padding-top: 48px;
    padding-bottom: 48px;
  }

  .page-hero {
    padding-top: 132px;
    padding-bottom: 56px;
  }

  .page-hero .hero-h1 {
    font-size: 1.7rem;
  }

  .page-hero .hero-desc {
    font-size: 0.875rem;
  }

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

  .hero-actions .btn-mk {
    width: 100%;
    min-width: 0;
  }

  .about-media img,
  .scenario-media img {
    height: 220px;
  }

  .step-card {
    padding: 28px 20px 22px;
  }

  .faq-item .accordion-button {
    padding: 16px 18px;
    font-size: 0.9375rem;
  }

  .faq-answer {
    padding: 14px 18px 18px;
    font-size: 0.875rem;
  }
}