/* roulang page: index */
/* =============================================
   主题色板 / 设计变量
   主色：#E2453F 品牌信号红
   主色按压：#C9342F
   高亮描边：#FF7A1A
   正向状态：#2BA471
   深色背景：#0D1117
   浅色背景：#F5F6F8
   卡片白：#FFFFFF
   正文主：#1B2028 / 次：#5B6472 / 说明：#8C95A3
   分隔线：#E4E8EE
   圆角：卡片14px / 按钮8px / 标签999px
   间距：桌面板块96px / 移动64px
   ============================================= */
:root {
  --brand: #E2453F;
  --brand-dark: #C9342F;
  --accent: #FF7A1A;
  --success: #2BA471;
  --bg-dark: #0D1117;
  --bg-soft: #F5F6F8;
  --surface: #FFFFFF;
  --text-1: #1B2028;
  --text-2: #5B6472;
  --text-3: #8C95A3;
  --border: #E4E8EE;
  --radius-card: 14px;
  --radius-btn: 8px;
  --shadow-card: 0 4px 16px rgba(16,24,40,.06);
  --gap-section: 96px;
  --font-body: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Source Han Sans SC", sans-serif;
}
* {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
}
body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.8;
  color: var(--text-1);
  background: #fff;
  -webkit-font-smoothing: antialiased;
}
a {
  color: inherit;
  text-decoration: none;
  transition: color .2s ease, border-color .2s ease, background .2s ease;
}
img {
  max-width: 100%;
  display: block;
  border: 0;
}
a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--brand);
  outline-offset: 2px;
  border-radius: 4px;
}
.container {
  max-width: 1200px;
}
section {
  position: relative;
}
.mt-2 { margin-top: .5rem; }

/* ===== 导航 ===== */
.site-header {
  background: rgba(13, 17, 23, .88);
  min-height: 64px;
  position: sticky;
  top: 0;
  z-index: 1050;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255,255,255,.05);
  transition: border-color .3s ease, box-shadow .3s ease;
}
.site-header.scrolled {
  border-bottom: 1px solid rgba(228,232,238,.13);
  box-shadow: 0 6px 18px rgba(0,0,0,.08);
}
.site-header .navbar {
  padding: 0;
  min-height: 64px;
}
.site-header .navbar-brand {
  color: #fff;
  font-size: 20px;
  font-weight: 800;
  letter-spacing: .01em;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 0;
}
.site-header .navbar-brand:hover {
  color: #fff;
}
.brand-mark {
  width: 34px;
  height: 34px;
  border-radius: 10px;
  background: linear-gradient(145deg, rgba(226,69,63,.22), rgba(226,69,63,.06));
  border: 1px solid rgba(255,122,26,.42);
  display: grid;
  place-items: center;
  color: var(--accent);
  flex: 0 0 34px;
}
.site-header .navbar-nav {
  gap: 2px;
}
.site-header .nav-link {
  color: rgba(255,255,255,.8);
  padding: 18px 18px !important;
  font-weight: 500;
  font-size: 15px;
  position: relative;
}
.site-header .nav-link:hover,
.site-header .nav-link:focus {
  color: #fff;
}
.site-header .nav-link.active::after {
  content: "";
  position: absolute;
  left: 16px;
  right: 16px;
  bottom: 8px;
  height: 2px;
  border-radius: 2px;
  background: var(--brand);
}
.header-cta {
  display: flex;
  align-items: center;
  gap: 10px;
}
.header-cta .btn {
  padding: 8px 18px;
  font-size: 14px;
  margin: 0;
}
.site-header .btn-ghost-light {
  background: transparent;
  border: 1px solid rgba(255,255,255,.35);
  color: #fff;
  border-radius: var(--radius-btn);
}
.site-header .btn-ghost-light:hover {
  border-color: var(--brand);
  color: #fff;
  background: rgba(226,69,63,.18);
}
.site-header .btn-brand {
  background: var(--brand);
  color: #fff;
  border: 1px solid var(--brand);
  border-radius: var(--radius-btn);
}
.site-header .btn-brand:hover {
  background: var(--brand-dark);
  border-color: rgba(255,255,255,.4);
}
.navbar-toggler {
  border: 1px solid rgba(255,255,255,.25);
  background: transparent;
  border-radius: 8px;
  padding: 6px 10px;
  color: #fff;
}
.navbar-toggler:focus {
  outline: 2px solid var(--brand);
  box-shadow: none;
}
.toggler-icon {
  width: 18px;
  height: 2px;
  background: #fff;
  margin: 4px 0;
  border-radius: 2px;
  display: block;
}
@media (max-width: 991.98px) {
  .site-header .navbar-collapse {
    background: rgba(13, 17, 23, .98);
    padding: 12px 0 18px;
    border-radius: 0 0 18px 18px;
    border-top: 1px solid rgba(255,255,255,.06);
  }
  .site-header .navbar-nav {
    padding: 8px 0;
  }
  .site-header .nav-link {
    padding: 14px 12px !important;
    line-height: 1.4;
  }
  .site-header .nav-link.active::after {
    left: 12px;
    right: auto;
    bottom: 6px;
    width: 28px;
  }
  .header-cta {
    width: 100%;
    padding: 12px 12px 0;
  }
  .header-cta .btn {
    flex: 1;
    padding: 11px 14px;
  }
}

/* ===== 通用按钮 ===== */
.btn {
  border-radius: var(--radius-btn);
  font-weight: 600;
  font-size: 15px;
  padding: 12px 24px;
  line-height: 1.4;
  transition: all .2s ease;
  border: 1px solid transparent;
}
.btn-brand {
  background: var(--brand);
  color: #fff;
  border-color: var(--brand);
}
.btn-brand:hover,
.btn-brand:focus {
  background: var(--brand-dark);
  color: #fff;
  transform: translateY(-1px);
  border-color: #fff;
}
.btn-brand:active {
  background: #a7302c;
  transform: translateY(0);
}
.btn-ghost-light {
  background: transparent;
  color: rgba(255,255,255,.92);
  border: 1px solid rgba(255,255,255,.36);
}
.btn-ghost-light:hover,
.btn-ghost-light:focus {
  border-color: var(--brand);
  color: #fff;
  background: rgba(226,69,63,.16);
  transform: translateY(-1px);
}
.btn-ghost-dark {
  background: #fff;
  color: var(--text-1);
  border: 1px solid var(--border);
}
.btn-ghost-dark:hover,
.btn-ghost-dark:focus {
  border-color: var(--brand);
  color: var(--brand);
  background: #FFF9F9;
}
.btn-dark-route {
  background: #fff;
  color: var(--text-1);
  border-radius: var(--radius-btn);
  font-weight: 600;
  border: 1px solid var(--border);
}
.btn-dark-route:hover {
  border-color: var(--brand);
  color: var(--brand);
  background: rgba(226,69,63,.05);
}

/* ===== 首页 Hero ===== */
.hero {
  background: var(--bg-dark);
  color: #fff;
  min-height: 760px;
  display: flex;
  align-items: center;
  padding: 110px 0 80px;
  overflow: hidden;
  border-bottom: 1px solid rgba(255,255,255,.06);
}
.hero-bg {
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle at 82% 26%, rgba(226,69,63,.22), transparent 32%),
    radial-gradient(circle at 12% 82%, rgba(255,122,26,.12), transparent 30%),
    linear-gradient(180deg, rgba(13,17,23,.96), rgba(13,17,23,.94)),
    url('/assets/images/backpic/back-1.jpg');
  background-size: cover;
  background-position: center;
  z-index: 0;
  pointer-events: none;
}
.hero-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,.028) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.028) 1px, transparent 1px);
  background-size: 46px 46px;
}
.hero .container {
  position: relative;
  z-index: 2;
}
.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: rgba(255,255,255,.86);
  border: 1px solid rgba(255,255,255,.18);
  border-radius: 999px;
  padding: 6px 14px 6px 12px;
  margin-bottom: 24px;
  background: rgba(255,255,255,.04);
}
.live-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--brand);
  box-shadow: 0 0 0 0 rgba(226,69,63,.55);
  animation: pulse-dot 1.8s infinite;
}
@keyframes pulse-dot {
  0% { box-shadow: 0 0 0 0 rgba(226,69,63,.5); }
  70% { box-shadow: 0 0 0 8px rgba(226,69,63,0); }
  100% { box-shadow: 0 0 0 0 rgba(226,69,63,0); }
}
.hero-title,
h1 {
  font-size: clamp(30px, 4vw, 44px);
  font-weight: 800;
  line-height: 1.28;
  color: #fff;
  margin: 0 0 20px;
  letter-spacing: .01em;
}
.hero-sub {
  font-size: 16px;
  line-height: 1.9;
  color: rgba(255,255,255,.72);
  max-width: 560px;
  margin-bottom: 28px;
}
.hero-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 38px;
}
.hero-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 48px;
  margin: 0;
  padding: 20px 0 0;
  border-top: 1px solid rgba(255,255,255,.12);
}
.hero-stats .stat-cell {
  display: flex;
  flex-direction: column;
}
.hero-stats dt {
  order: 2;
  font-size: 13px;
  color: rgba(255,255,255,.6);
  margin: 4px 0 0;
}
.hero-stats dd {
  order: 1;
  margin: 0;
  font-weight: 800;
  font-size: 24px;
  color: var(--accent);
  letter-spacing: .01em;
}

/* ===== 右侧面板 ===== */
.monitor-wrap {
  display: flex;
  justify-content: flex-end;
}
.monitor-panel {
  position: relative;
  background: rgba(18, 24, 33, .65);
  border: 1px solid rgba(255,255,255,.13);
  border-radius: 20px;
  padding: 24px 22px 18px;
  max-width: 520px;
  width: 100%;
  color: rgba(255,255,255,.9);
  overflow: hidden;
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  box-shadow: 0 20px 60px rgba(0,0,0,.26);
}
.monitor-panel::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.035) 1px, transparent 1px);
  background-size: 22px 22px;
  pointer-events: none;
}
.monitor-panel::after {
  content: "";
  position: absolute;
  left: 3%;
  right: 3%;
  height: 46px;
  background: linear-gradient(180deg, transparent, rgba(226,69,63,.06), transparent);
  animation: scan-y 5s ease-in-out infinite;
  pointer-events: none;
  z-index: 0;
}
@keyframes scan-y {
  0%, 100% { top: 5%; opacity: .25; }
  50% { top: 78%; opacity: .8; }
}
.monitor-panel .panel-head,
.monitor-panel .panel-footer,
.monitor-panel .monitor-meta,
.monitor-panel .trend-box,
.monitor-panel .case-tag-top {
  position: relative;
  z-index: 1;
}
.panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 13px;
  margin-bottom: 18px;
  color: rgba(255,255,255,.72);
}
.risk-chip {
  background: rgba(226,69,63,.16);
  border: 1px solid rgba(226,69,63,.5);
  color: #FF6B66;
  font-weight: 600;
  border-radius: 999px;
  padding: 3px 12px;
  font-size: 12px;
}
.monitor-title {
  font-size: 17px;
  font-weight: 600;
  margin-bottom: 16px;
  color: #fff;
}
.trend-box {
  background: rgba(0,0,0,.2);
  border: 1px solid rgba(255,255,255,.08);
  border-radius: 14px;
  padding: 14px 12px 8px;
  margin-bottom: 12px;
}
.trend-box svg {
  display: block;
  width: 100%;
  height: 90px;
}
.trend-label {
  display: flex;
  justify-content: space-between;
  font-size: 11px;
  color: rgba(255,255,255,.48);
  padding: 6px 2px 0;
}
.monitor-meta {
  list-style: none;
  margin: 0 0 14px;
  padding: 0;
  border-top: 1px solid rgba(255,255,255,.07);
  border-bottom: 1px solid rgba(255,255,255,.07);
}
.monitor-meta li {
  display: flex;
  justify-content: space-between;
  font-size: 13px;
  padding: 10px 0;
  border-bottom: 1px solid rgba(255,255,255,.05);
}
.monitor-meta li:last-child {
  border-bottom: 0;
}
.monitor-meta span {
  color: rgba(255,255,255,.5);
  flex: 0 0 58px;
}
.monitor-meta strong {
  color: rgba(255,255,255,.88);
  font-weight: 500;
  text-align: right;
}
.panel-footer {
  display: flex;
  align-items: center;
  gap: 9px;
  font-size: 12px;
  color: rgba(255,255,255,.66);
}
.success-dot {
  width: 8px;
  height: 8px;
  background: var(--success);
  border-radius: 50%;
  box-shadow: 0 0 0 0 rgba(43,164,113,.5);
  animation: pulse-green 2s infinite;
}
@keyframes pulse-green {
  0% { box-shadow: 0 0 0 0 rgba(43,164,113,.4); }
  70% { box-shadow: 0 0 0 8px rgba(43,164,113,0); }
  100% { box-shadow: 0 0 0 0 rgba(43,164,113,0); }
}

/* ===== 板块标题 ===== */
.section-pad {
  padding: 96px 0;
}
.section-head {
  margin-bottom: 42px;
}
.section-head .eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 700;
  color: var(--brand);
  letter-spacing: .04em;
  margin-bottom: 10px;
}
.section-head .eyebrow::before {
  content: "";
  width: 20px;
  height: 3px;
  background: var(--brand);
  border-radius: 4px;
  display: inline-block;
}
.section-head h2,
.section-block-title {
  font-size: clamp(24px, 2.8vw, 34px);
  font-weight: 800;
  line-height: 1.4;
  margin: 0 0 12px;
  color: var(--text-1);
}
.section-head .lead-text,
.section-lead {
  color: var(--text-2);
  font-size: 15px;
  line-height: 1.8;
  max-width: 760px;
  margin-bottom: 0;
}

/* ===== 功能分组 ===== */
.core-section {
  background: var(--bg-soft);
}
.feature-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
  height: 100%;
  padding: 28px 24px 22px;
  transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
  display: flex;
  flex-direction: column;
}
.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 28px rgba(16,24,40,.1);
  border-color: rgba(226,69,63,.55);
}
.feature-card.flagged {
  border-top: 3px solid var(--brand);
  background: linear-gradient(180deg, #FFF6F6 0%, #fff 100%);
  box-shadow: 0 10px 28px rgba(226,69,63,.08);
}
.feature-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: rgba(226,69,63,.08);
  color: var(--brand);
  display: grid;
  place-items: center;
  margin-bottom: 18px;
  flex: 0 0 44px;
}
.feature-card h3 {
  font-size: 18px;
  font-weight: 700;
  margin: 0 0 8px;
  color: var(--text-1);
}
.feature-card p {
  font-size: 14px;
  line-height: 1.8;
  color: var(--text-2);
  margin: 0 0 18px;
  flex: 1;
}
.feature-meta {
  border-top: 1px solid var(--border);
  padding-top: 14px;
  font-size: 13px;
  color: var(--text-3);
  display: flex;
  align-items: center;
  gap: 8px;
}
.feature-meta .tiny-bar {
  flex: 1;
  height: 4px;
  border-radius: 4px;
  background: var(--border);
  overflow: hidden;
}
.feature-meta .tiny-bar i {
  display: block;
  height: 100%;
  width: 72%;
  background: linear-gradient(90deg, var(--brand), var(--accent));
  border-radius: 4px;
}

/* ===== 使用场景 ===== */
.scenes-section {
  background: var(--bg-dark);
  color: #fff;
}
.scenes-section .section-head h2,
.scenes-section .section-block-title {
  color: #fff;
}
.scenes-section .section-head .lead-text,
.scenes-section .section-lead {
  color: rgba(255,255,255,.62);
}
.scene-rows {
  border-top: 1px solid rgba(255,255,255,.08);
}
.scene-row {
  display: grid;
  grid-template-columns: 74px 1fr 150px;
  gap: 30px;
  align-items: center;
  padding: 28px 6px;
  border-bottom: 1px solid rgba(255,255,255,.08);
  color: rgba(255,255,255,.85);
  transition: background .25s ease, color .25s ease;
  border-radius: 12px;
  margin-bottom: 0;
}
.scene-row:hover {
  background: rgba(255,255,255,.03);
  color: #fff;
}
.scene-num {
  font-size: 36px;
  font-weight: 800;
  color: rgba(255,255,255,.16);
  line-height: 1;
  transition: color .2s ease;
}
.scene-row:hover .scene-num {
  color: var(--brand);
}
.scene-copy h3 {
  font-size: 18px;
  font-weight: 700;
  margin: 0 0 8px;
  color: #fff;
}
.scene-copy p {
  font-size: 14px;
  color: rgba(255,255,255,.62);
  margin: 0;
  line-height: 1.8;
}
.scene-cta {
  color: var(--accent);
  font-weight: 600;
  font-size: 14px;
  text-align: right;
  white-space: nowrap;
}
@media (max-width: 767.98px) {
  .scene-row {
    grid-template-columns: 44px 1fr;
    gap: 12px 16px;
    padding: 22px 4px;
  }
  .scene-num {
    font-size: 26px;
  }
  .scene-cta {
    grid-column: 2;
    text-align: left;
  }
}

/* ===== 成功案例 ===== */
.case-section {
  background: #fff;
}
.case-section .section-head {
  margin-bottom: 38px;
}
.stat-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
  margin: 0 0 56px;
}
.stat-cell-box {
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  padding: 20px 22px;
  text-align: center;
}
.stat-cell-box .num {
  font-size: 32px;
  font-weight: 800;
  color: var(--brand);
  line-height: 1.25;
}
.stat-cell-box .label {
  font-size: 13px;
  color: var(--text-2);
  margin-top: 6px;
}
@media (max-width: 767.98px) {
  .stat-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
  }
}
.case-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
  overflow: hidden;
  height: 100%;
  transition: transform .25s ease, border-color .25s ease, box-shadow .25s ease;
}
.case-card:hover {
  transform: translateY(-4px);
  border-color: rgba(226,69,63,.55);
  box-shadow: 0 14px 30px rgba(16,24,40,.1);
}
.case-cover {
  position: relative;
  height: 180px;
  background: linear-gradient(135deg, #10151d, #283040), #10151d;
}
.case-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .9;
}
.case-cover .img-fallback {
  background: radial-gradient(circle at 30% 30%, rgba(226,69,63,.26), transparent 60%);
}
.case-body {
  padding: 24px 22px 18px;
}
.case-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  margin-bottom: 14px;
}
.case-type {
  font-size: 12px;
  font-weight: 700;
  color: var(--brand);
  background: rgba(226,69,63,.08);
  border: 1px solid rgba(226,69,63,.2);
  padding: 4px 12px;
  border-radius: 999px;
}
.case-time {
  font-size: 13px;
  color: var(--text-3);
}
.case-body h3 {
  font-size: 19px;
  font-weight: 700;
  color: var(--text-1);
  margin: 0 0 18px;
}
.case-block {
  border-left: 2px solid var(--border);
  padding: 2px 0 2px 14px;
  margin-bottom: 16px;
}
.case-block strong {
  display: block;
  font-size: 13px;
  font-weight: 700;
  color: var(--brand);
  margin-bottom: 4px;
}
.case-block p {
  font-size: 14px;
  line-height: 1.8;
  color: var(--text-2);
  margin: 0;
}
.case-card .btn-link-dark {
  font-size: 14px;
  font-weight: 600;
  padding: 0;
  color: var(--text-1);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.case-card .btn-link-dark:hover {
  color: var(--brand);
}

/* ===== 价格 ===== */
.pricing-section {
  background: var(--bg-soft);
}
.pricing-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 18px;
  box-shadow: var(--shadow-card);
  padding: 30px 26px 24px;
  height: 100%;
  display: flex;
  flex-direction: column;
  position: relative;
  transition: transform .25s ease, border-color .25s ease, box-shadow .25s ease;
}
.pricing-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 14px 30px rgba(16,24,40,.1);
}
.plan-name {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-3);
  margin-bottom: 6px;
}
.plan-price {
  font-size: 34px;
  font-weight: 800;
  color: var(--text-1);
  margin-bottom: 6px;
}
.plan-price small {
  font-size: 13px;
  color: var(--text-3);
  font-weight: 400;
  margin-left: 4px;
}
.plan-desc {
  font-size: 14px;
  color: var(--text-2);
  border-bottom: 1px solid var(--border);
  padding-bottom: 18px;
  margin-bottom: 18px;
}
.plan-list {
  list-style: none;
  margin: 0 0 22px;
  padding: 0;
}
.plan-list li {
  position: relative;
  padding: 7px 0 7px 28px;
  font-size: 14px;
  color: var(--text-2);
  line-height: 1.7;
}
.plan-list li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 16px;
  width: 12px;
  height: 12px;
  border: 2px solid var(--brand);
  border-radius: 50%;
  background: rgba(226,69,63,.08);
  box-sizing: border-box;
}
.pricing-card.popular {
  border: 2px solid var(--brand);
  box-shadow: 0 18px 44px rgba(226,69,63,.12);
}
.popular-badge {
  position: absolute;
  top: -13px;
  left: 28px;
  background: var(--brand);
  color: #fff;
  font-size: 12px;
  font-weight: 700;
  border-radius: 999px;
  padding: 4px 16px;
}
.pricing-card .btn {
  margin-top: auto;
}
.pricing-note {
  font-size: 13px;
  color: var(--text-3);
  text-align: center;
  margin-top: 28px;
}

/* ===== FAQ ===== */
.faq-section {
  background: #fff;
}
.faq-list {
  max-width: 860px;
  margin: 0 auto;
}
.faq-item {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 14px;
  box-shadow: 0 2px 8px rgba(16,24,40,.03);
  margin-bottom: 14px;
  transition: border-color .2s ease, box-shadow .2s ease;
}
.faq-item:hover {
  border-color: rgba(226,69,63,.4);
}
.faq-q {
  width: 100%;
  background: transparent;
  border: 0;
  padding: 20px 22px;
  display: flex;
  align-items: center;
  gap: 14px;
  color: var(--text-1);
  font-size: 16px;
  font-weight: 600;
  text-align: left;
}
.faq-q .q {
  flex: 1;
}
.faq-plus {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: var(--bg-soft);
  color: var(--brand);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  transition: transform .25s ease, background .2s ease, border-color .2s ease;
}
.faq-item .collapse.show + .faq-q .faq-plus,
.faq-q[aria-expanded="true"] .faq-plus {
  transform: rotate(45deg);
  background: var(--brand);
  color: #fff;
  border-color: var(--brand);
}
.faq-q[aria-expanded="true"] {
  color: var(--brand);
}
.faq-a {
  padding: 0 22px 22px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--text-2);
}

/* ===== CTA ===== */
.cta-zone {
  background:
    linear-gradient(180deg, rgba(13,17,23,.9) 0%, rgba(13,17,23,.82) 100%),
    url('/assets/images/backpic/back-5.jpg') center/cover no-repeat;
  background-color: var(--bg-dark);
  color: #fff;
  padding: 104px 0;
  text-align: center;
}
.cta-inner {
  max-width: 760px;
  margin: 0 auto;
}
.cta-inner h2 {
  font-size: clamp(24px, 3vw, 36px);
  font-weight: 800;
  line-height: 1.4;
  margin-bottom: 18px;
}
.cta-inner p {
  color: rgba(255,255,255,.7);
  font-size: 16px;
  line-height: 1.8;
  margin-bottom: 32px;
}
.cta-actions {
  display: flex;
  justify-content: center;
  gap: 14px;
  flex-wrap: wrap;
}

/* ===== 页脚 ===== */
.site-footer {
  background: #0B0F14;
  color: #96A0AD;
  padding-top: 72px;
  border-top: 1px solid rgba(255,255,255,.06);
}
.footer-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 20px;
  font-weight: 800;
  color: #fff;
  margin-bottom: 16px;
}
.site-footer .brand-mark {
  background: rgba(255,255,255,.06);
  border-color: rgba(255,255,255,.14);
  color: #fff;
}
.footer-desc {
  font-size: 14px;
  line-height: 1.9;
  color: rgba(255,255,255,.55);
  max-width: 380px;
  margin-bottom: 0;
}
.footer-col-title {
  color: #fff;
  font-size: 15px;
  font-weight: 700;
  margin: 0 0 16px;
}
.site-footer ul {
  list-style: none;
  padding: 0;
  margin: 0;
}
.site-footer ul li {
  margin-bottom: 10px;
}
.site-footer ul li a {
  color: rgba(255,255,255,.6);
  font-size: 14px;
}
.site-footer ul li a:hover {
  color: var(--accent);
}
.footer-legal {
  border-top: 1px solid rgba(255,255,255,.07);
  margin-top: 48px;
  padding: 22px 0;
  font-size: 13px;
  color: rgba(255,255,255,.4);
}
.footer-legal .container {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
}
.footer-legal a {
  color: rgba(255,255,255,.5);
}
.footer-legal a:hover {
  color: #fff;
}

/* ===== 返回顶部 ===== */
.back-top {
  position: fixed;
  right: 22px;
  bottom: 22px;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  border: 1px solid rgba(226,69,63,.4);
  background: #fff;
  color: var(--brand);
  display: grid;
  place-items: center;
  box-shadow: 0 8px 22px rgba(0,0,0,.12);
  z-index: 999;
  transition: background .2s ease, color .2s ease, border-color .2s ease, transform .2s ease;
}
.back-top:hover {
  background: var(--brand);
  color: #fff;
  border-color: var(--brand);
  transform: translateY(-3px);
}
.back-top svg {
  width: 18px;
  height: 18px;
}

/* ===== 响应式补丁 ===== */
@media (max-width: 1199.98px) {
  .hero {
    min-height: auto;
  }
  .scene-row {
    grid-template-columns: 62px 1fr 130px;
    gap: 22px;
  }
}
@media (max-width: 991.98px) {
  .section-pad {
    padding: 72px 0;
  }
  .monitor-wrap {
    justify-content: flex-start;
    margin-top: 48px;
  }
  .hero {
    padding: 84px 0 64px;
  }
}
@media (max-width: 767.98px) {
  .section-pad {
    padding: 56px 0;
  }
  .pricing-card.popular {
    margin-top: 18px;
  }
  .pricing-card {
    margin-bottom: 14px;
  }
  .hero-title {
    font-size: 28px;
  }
  .hero-stats {
    gap: 16px 22px;
  }
  .hero-stats .stat-cell {
    width: calc(50% - 22px);
  }
  .site-footer {
    padding-top: 56px;
  }
  .footer-legal .container {
    flex-direction: column;
    gap: 6px;
  }
}
@media (max-width: 575.98px) {
  .monitor-panel {
    border-radius: 16px;
    padding: 18px 15px;
  }
  .hero {
    padding: 66px 0 48px;
  }
  .hero-sub {
    font-size: 15px;
  }
  .hero-actions .btn {
    width: 100%;
  }
  .section-head h2 {
    line-height: 1.35;
  }
  .feature-card {
    padding: 22px 18px;
  }
  .case-body {
    padding: 18px 16px 16px;
  }
  .pricing-card {
    padding: 22px 18px;
  }
}

/* roulang page: category1 */
:root {
  --brand: #E2453F;
  --brand-dark: #C9342F;
  --accent: #FF7A1A;
  --success: #2BA471;
  --bg-dark: #0D1117;
  --bg-soft: #F5F6F8;
  --surface: #FFFFFF;
  --text-1: #1B2028;
  --text-2: #5B6472;
  --text-3: #8C95A3;
  --border: #E4E8EE;
  --radius-card: 14px;
  --radius-btn: 8px;
  --shadow-card: 0 4px 16px rgba(16,24,40,.06);
  --gap-section: 96px;
  --font-body: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Source Han Sans SC", sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.8;
  color: var(--text-1);
  background: #fff;
  -webkit-font-smoothing: antialiased;
}
body.is-locked { overflow: hidden; }
a { color: inherit; text-decoration: none; transition: all .2s ease; }
img { max-width: 100%; display: block; border: 0; }
ul, ol, p, h1, h2, h3, h4, h5, h6 { margin: 0; padding: 0; }
ul { list-style: none; }
.container { max-width: 1200px; }
section { position: relative; }

a:focus-visible,
button:focus-visible,
.btn:focus-visible {
  outline: 2px solid var(--brand);
  outline-offset: 2px;
  border-radius: 4px;
  box-shadow: none;
}

/* ===== 导航 ===== */
.site-header {
  background: rgba(13, 17, 23, .9);
  min-height: 64px;
  position: sticky;
  top: 0;
  z-index: 1050;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255,255,255,.05);
  transition: border-color .3s ease, box-shadow .3s ease;
}
.site-header.scrolled {
  border-bottom: 1px solid rgba(228,232,238,.14);
  box-shadow: 0 6px 18px rgba(0,0,0,.1);
}
.site-header .navbar { padding: 0; min-height: 64px; }
.site-header .navbar-brand {
  color: #fff;
  font-size: 20px;
  font-weight: 800;
  letter-spacing: .01em;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 0;
}
.site-header .navbar-brand:hover { color: #fff; }
.brand-mark {
  width: 34px;
  height: 34px;
  border-radius: 10px;
  background: linear-gradient(145deg, rgba(226,69,63,.24), rgba(226,69,63,.05));
  border: 1px solid rgba(255,122,26,.42);
  display: grid;
  place-items: center;
  color: var(--accent);
  flex: 0 0 34px;
}
.site-header .navbar-nav { gap: 2px; }
.site-header .nav-link {
  color: rgba(255,255,255,.8);
  padding: 18px 18px !important;
  font-weight: 500;
  font-size: 15px;
  position: relative;
}
.site-header .nav-link:hover,
.site-header .nav-link:focus { color: #fff; }
.site-header .nav-link.active { color: #fff; }
.site-header .nav-link.active::after {
  content: "";
  position: absolute;
  left: 16px;
  right: 16px;
  bottom: 8px;
  height: 2px;
  border-radius: 2px;
  background: var(--brand);
}
.header-cta { display: flex; align-items: center; gap: 10px; }
.header-cta .btn { padding: 8px 18px; font-size: 14px; margin: 0; }
.site-header .btn-ghost-light {
  background: transparent;
  border: 1px solid rgba(255,255,255,.35);
  color: #fff;
  border-radius: var(--radius-btn);
}
.site-header .btn-ghost-light:hover {
  border-color: var(--brand);
  color: #fff;
  background: rgba(226,69,63,.18);
}
.site-header .btn-brand {
  background: var(--brand);
  color: #fff;
  border: 1px solid var(--brand);
  border-radius: var(--radius-btn);
}
.site-header .btn-brand:hover {
  background: var(--brand-dark);
  border-color: rgba(255,255,255,.4);
}
.navbar-toggler {
  border: 1px solid rgba(255,255,255,.25);
  background: transparent;
  border-radius: 8px;
  padding: 6px 10px;
  color: #fff;
}
.navbar-toggler:focus {
  outline: 2px solid var(--brand);
  box-shadow: none;
}
.toggler-icon {
  display: block;
  width: 20px;
  height: 2px;
  background: #fff;
  border-radius: 2px;
  margin: 4px 0;
}

/* ===== 按钮 ===== */
.btn {
  border-radius: var(--radius-btn) !important;
  font-weight: 600;
  font-size: 15px;
  padding: 12px 24px;
  line-height: 1.4;
  transition: all .2s ease;
  border: 1px solid transparent;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}
.btn-brand {
  background: var(--brand);
  color: #fff;
  border-color: var(--brand);
}
.btn-brand:hover,
.btn-brand:focus {
  background: var(--brand-dark);
  color: #fff;
  transform: translateY(-1px);
  border-color: rgba(255,255,255,.55);
}
.btn-brand:active { background: #A93022; transform: translateY(0); }
.btn-ghost-light {
  background: transparent;
  color: rgba(255,255,255,.92);
  border: 1px solid rgba(255,255,255,.36);
}
.btn-ghost-light:hover,
.btn-ghost-light:focus {
  border-color: var(--brand);
  color: #fff;
  background: rgba(226,69,63,.16);
  transform: translateY(-1px);
}
.btn-ghost-dark {
  background: var(--surface);
  color: var(--text-1);
  border: 1px solid var(--border);
}
.btn-ghost-dark:hover,
.btn-ghost-dark:focus {
  border-color: var(--brand);
  color: var(--brand);
  background: #FFF8F7;
  transform: translateY(-1px);
}
.btn-dark-route {
  background: #fff;
  color: var(--text-1);
  border-radius: var(--radius-btn);
  font-weight: 600;
  border: 1px solid var(--border);
  transition: all .2s ease;
  padding: 10px 22px;
}
.btn-dark-route:hover {
  border-color: var(--brand);
  color: var(--brand);
  background: rgba(226,69,63,.05);
}

/* ===== 分类页顶部 ===== */
.cat-cover {
  background: var(--bg-dark);
  color: #fff;
  padding: 54px 0 72px;
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid rgba(255,255,255,.06);
}
.cat-cover-bg {
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle at 82% 8%, rgba(226,69,63,.2), transparent 34%),
    radial-gradient(circle at 18% 82%, rgba(255,122,26,.08), transparent 30%),
    linear-gradient(180deg, rgba(13,17,23,.96), rgba(13,17,23,.88)),
    url('/assets/images/backpic/back-2.jpg');
  background-size: cover;
  background-position: center;
  pointer-events: none;
}
.cat-cover-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.03) 1px, transparent 1px);
  background-size: 42px 42px;
  -webkit-mask-image: linear-gradient(110deg, rgba(0,0,0,.75), rgba(0,0,0,0));
          mask-image: linear-gradient(110deg, rgba(0,0,0,.75), rgba(0,0,0,0));
}
.cat-cover .container { position: relative; z-index: 2; }
.breadcrumb-bar {
  display: flex;
  align-items: center;
  gap: 7px;
  font-size: 13px;
  color: rgba(255,255,255,.48);
  margin-bottom: 16px;
}
.breadcrumb-bar a {
  color: rgba(255,255,255,.72);
  transition: color .2s ease;
}
.breadcrumb-bar a:hover { color: var(--accent); }
.breadcrumb-bar .sep { color: rgba(255,255,255,.25); }
.cat-cover h1 {
  font-size: clamp(28px, 3vw, 38px);
  font-weight: 800;
  line-height: 1.32;
  margin-bottom: 14px;
  letter-spacing: .01em;
  max-width: 800px;
  color: #fff;
}
.cat-cover .cat-sub {
  font-size: 16px;
  color: rgba(255,255,255,.62);
  line-height: 1.85;
  max-width: 640px;
}
.briefing-card {
  background: rgba(255,255,255,.05);
  border: 1px solid rgba(255,255,255,.12);
  border-radius: var(--radius-card);
  padding: 20px 22px;
  color: rgba(255,255,255,.78);
  position: relative;
  overflow: hidden;
  backdrop-filter: blur(8px);
}
.briefing-card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--brand);
}
.briefing-card .briefing-top {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
  font-size: 14px;
  color: #fff;
  margin-bottom: 6px;
}
.briefing-card .status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--brand);
  box-shadow: 0 0 0 4px rgba(226,69,63,.18);
}
.briefing-card p {
  font-size: 13px;
  color: rgba(255,255,255,.5);
  margin-bottom: 14px;
  line-height: 1.7;
}
.briefing-detail {
  display: flex;
  justify-content: space-between;
  border-top: 1px dashed rgba(255,255,255,.14);
  padding-top: 13px;
  font-size: 13px;
}
.briefing-detail span { color: rgba(255,255,255,.5); }
.briefing-detail strong {
  color: var(--accent);
  font-weight: 700;
  font-size: 16px;
  font-feature-settings: "tnum";
}

/* ===== 主区域 ===== */
.category-main {
  background: var(--bg-soft);
  padding: 48px 0 80px;
}
.category-inner {
  position: relative;
  z-index: 2;
}

/* 侧边栏内的小锚点定位 */
.anchor-helper {
  display: block;
  position: relative;
  top: -88px;
  visibility: hidden;
  height: 0;
}

/* ===== 置顶专题 ===== */
.featured-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 18px;
  overflow: hidden;
  box-shadow: var(--shadow-card);
  transition: box-shadow .3s ease, transform .3s ease;
}
.featured-card:hover {
  box-shadow: 0 14px 34px rgba(16,24,40,.1);
  transform: translateY(-3px);
}
.featured-banner {
  width: 100%;
  height: 180px;
  background-size: cover;
  background-position: center;
  background-color: #E7EBF0;
  position: relative;
}
.featured-banner::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(0,0,0,0) 40%, rgba(0,0,0,.4));
}
.featured-badge {
  position: absolute;
  top: 16px;
  left: 16px;
  z-index: 2;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(13,17,23,.62);
  backdrop-filter: blur(6px);
  border: 1px solid rgba(255,255,255,.24);
  color: #fff;
  font-size: 12px;
  font-weight: 600;
  padding: 5px 14px;
  border-radius: 999px;
  letter-spacing: .04em;
}
.featured-content { padding: 24px 28px 26px; }
.featured-content .featured-title {
  font-size: 20px;
  font-weight: 800;
  line-height: 1.5;
  color: var(--text-1);
  margin: 8px 0 10px;
  transition: color .2s ease;
}
.featured-card:hover .featured-title { color: var(--brand); }
.featured-content p {
  font-size: 15px;
  color: var(--text-2);
  line-height: 1.85;
  margin-bottom: 16px;
}
.featured-meta {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
  font-size: 13px;
  color: var(--text-3);
}

/* ===== 内容卡片 ===== */
.section-title-row {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 16px;
  margin: 36px 0 18px;
}
.section-title-row .eyebrow {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .05em;
  color: var(--brand);
  margin-bottom: 5px;
}
.section-title-row h2 {
  font-size: 22px;
  font-weight: 800;
  line-height: 1.4;
  color: var(--text-1);
}

.article-list .article-item {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  padding: 18px;
  margin-bottom: 16px;
  display: flex;
  gap: 18px;
  box-shadow: 0 2px 8px rgba(16,24,40,.03);
  transition: box-shadow .3s ease, border-color .3s ease, transform .3s ease;
}
.article-list .article-item:hover {
  box-shadow: 0 10px 26px rgba(16,24,40,.08);
  border-color: rgba(226,69,63,.25);
  transform: translateY(-2px);
}
.article-thumb {
  width: 168px;
  min-width: 168px;
  height: 130px;
  border-radius: 10px;
  background-color: #E1E7EF;
  background-size: cover;
  background-position: center;
  position: relative;
  overflow: hidden;
}
.article-thumb::after {
  content: "";
  position: absolute;
  inset: 0;
  border: 1px solid rgba(255,255,255,.1);
  border-radius: 10px;
}
.article-body {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
}
.article-body .article-cat {
  font-size: 12px;
  color: var(--brand);
  font-weight: 700;
  margin-bottom: 4px;
}
.article-body h3 {
  font-size: 17px;
  font-weight: 700;
  line-height: 1.55;
  color: var(--text-1);
  margin-bottom: 6px;
  transition: color .2s ease;
}
.article-item:hover h3 { color: var(--brand); }
.article-body p {
  font-size: 14px;
  color: var(--text-2);
  line-height: 1.75;
  margin-bottom: 9px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.article-foot {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: auto;
  font-size: 13px;
  color: var(--text-3);
}
.article-foot .dot {
  width: 3px;
  height: 3px;
  background: #C6CED8;
  border-radius: 50%;
}
.article-link {
  font-size: 13px;
  font-weight: 700;
  color: var(--brand);
  opacity: 0;
  transform: translateX(-4px);
  transition: all .25s ease;
  margin-left: auto;
}
.article-item:hover .article-link {
  opacity: 1;
  transform: translateX(0);
}

/* 分页 */
.pagination-zone {
  display: flex;
  justify-content: center;
  margin-top: 30px;
}
.pagination-zone .pagination {
  gap: 8px;
  margin: 0;
}
.pagination-zone .page-link {
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text-2);
  font-size: 14px;
  font-weight: 600;
  padding: 8px 16px;
  background: #fff;
  transition: all .2s ease;
  box-shadow: none;
}
.pagination-zone .page-link:hover {
  color: var(--brand);
  border-color: rgba(226,69,63,.45);
  background: #FFF9F8;
}
.pagination-zone .page-item.active .page-link {
  background: var(--brand);
  border-color: var(--brand);
  color: #fff;
}
.pagination-zone .page-item.disabled .page-link {
  background: #F1F3F6;
  color: #B6BDC7;
  border-color: var(--border);
}

/* 侧栏 */
.sidebar .side-card,
.sidebar .side-card-dark,
.sidebar .side-card-tag,
.sidebar .side-card-list,
.sidebar .disclaimer-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  padding: 22px 22px 20px;
  margin-bottom: 20px;
  box-shadow: 0 2px 8px rgba(16,24,40,.03);
}
.sidebar .side-head {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 15px;
  font-weight: 700;
  color: var(--text-1);
  padding-bottom: 12px;
  margin-bottom: 14px;
  border-bottom: 1px solid var(--border);
}
.side-head .head-mark {
  width: 8px;
  height: 8px;
  border-radius: 2px;
  background: var(--brand);
}
.monitor-card {
  background:
    radial-gradient(circle at 90% 14%, rgba(226,69,63,.13), transparent 42%),
    var(--bg-dark);
  border-radius: 16px;
  border: 1px solid rgba(255,255,255,.08);
  padding: 24px 22px;
  color: #fff;
  margin-bottom: 20px;
  position: relative;
  overflow: hidden;
}
.monitor-card::after {
  content: "";
  position: absolute;
  right: -20px;
  bottom: -24px;
  width: 110px;
  height: 110px;
  border: 1px solid rgba(255,122,26,.18);
  border-radius: 50%;
}
.monitor-card .monitor-label {
  font-size: 12px;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: .08em;
  margin-bottom: 10px;
  position: relative;
  z-index: 1;
}
.monitor-card h3 {
  color: #fff;
  font-size: 18px;
  font-weight: 800;
  line-height: 1.45;
  margin-bottom: 10px;
  position: relative;
  z-index: 1;
}
.monitor-card p {
  color: rgba(255,255,255,.56);
  font-size: 13px;
  line-height: 1.8;
  margin-bottom: 17px;
  position: relative;
  z-index: 1;
}
.monitor-card .btn {
  width: 100%;
  position: relative;
  z-index: 1;
}
.tag-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.tag-cloud a {
  font-size: 13px;
  border: 1px solid var(--border);
  background: #F9FAFB;
  color: var(--text-2);
  padding: 5px 14px !important;
  border-radius: 999px;
  font-weight: 500;
  transition: all .2s ease;
  display: inline-block;
}
.tag-cloud a:hover {
  border-color: var(--brand);
  color: var(--brand);
  background: #FFF8F7;
}
.recent-list li {
  padding: 11px 0;
  border-bottom: 1px dashed var(--border);
}
.recent-list li:first-child { padding-top: 0; }
.recent-list li:last-child { border-bottom: 0; padding-bottom: 0; }
.recent-list a {
  display: flex;
  gap: 10px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--text-2);
  transition: color .2s ease;
}
.recent-list a:hover { color: var(--brand); }
.recent-list .recent-arrow {
  color: var(--brand);
  font-weight: 700;
  flex: 0 0 auto;
}
.recent-time {
  display: block;
  font-size: 12px;
  color: var(--text-3);
  margin-top: 5px;
}
.disclaimer-card {
  border-left: 3px solid var(--accent);
  background: #FFFCF7;
  font-size: 13px;
  color: var(--text-2);
  line-height: 1.8;
}
.disclaimer-card strong {
  display: block;
  color: var(--text-1);
  margin-bottom: 4px;
  font-size: 14px;
}

/* ===== CTA 引导 ===== */
.cta-gap { height: 72px; }
.list-cta-panel {
  background:
    linear-gradient(rgba(13,17,23,.88), rgba(13,17,23,.92)),
    url('/assets/images/backpic/back-7.jpg');
  background-size: cover;
  background-position: center;
  border-radius: 18px;
  padding: 42px 40px;
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 24px;
  margin-top: 50px;
  position: relative;
  overflow: hidden;
}
.list-cta-panel::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 230px;
  height: 230px;
  background: radial-gradient(circle, rgba(226,69,63,.3), transparent 65%);
  pointer-events: none;
}
.list-cta-panel h2 {
  font-size: clamp(21px, 2.4vw, 27px);
  font-weight: 800;
  color: #fff;
  max-width: 600px;
}
.list-cta-panel p {
  color: rgba(255,255,255,.6);
  margin: 6px 0 0;
  font-size: 15px;
}
.cta-panel-btns {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  z-index: 2;
}
.cta-panel-btns .btn {
  padding: 12px 26px;
}

/* ===== 页脚 ===== */
.site-footer {
  background: var(--bg-dark);
  color: rgba(255,255,255,.72);
  padding: 62px 0 0;
  font-size: 14px;
  line-height: 1.8;
}
.footer-brand {
  color: #fff;
  font-size: 18px;
  font-weight: 800;
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 10px;
}
.footer-brand .brand-mark {
  width: 30px;
  height: 30px;
  flex: 0 0 30px;
  border-radius: 8px;
  border-color: rgba(255,122,26,.5);
}
.site-footer .brand-mark svg { width: 16px; height: 16px; }
.footer-desc {
  color: rgba(255,255,255,.46);
  font-size: 14px;
  line-height: 1.9;
  max-width: 430px;
}
.footer-col-title {
  color: #fff;
  font-weight: 700;
  font-size: 15px;
  margin-bottom: 12px;
}
.site-footer ul li { margin-bottom: 7px; }
.site-footer ul a {
  color: rgba(255,255,255,.5);
  transition: color .2s ease, padding-left .2s ease;
}
.site-footer ul a:hover {
  color: #fff;
  padding-left: 4px;
}
.footer-legal {
  margin-top: 46px;
  border-top: 1px solid rgba(255,255,255,.08);
  padding: 20px 0;
  font-size: 13px;
  color: rgba(255,255,255,.35);
}
.footer-legal .container {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}
.footer-legal span { display: inline-block; }

/* 返回顶部 */
.back-to-top {
  position: fixed;
  right: 22px;
  bottom: 22px;
  width: 42px;
  height: 42px;
  background: #fff;
  border: 1px solid rgba(226,69,63,.32);
  box-shadow: 0 8px 22px rgba(16,24,40,.12);
  color: var(--brand);
  border-radius: 50%;
  display: grid;
  place-items: center;
  z-index: 1040;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: all .25s ease;
}
.back-to-top.show { opacity: 1; visibility: visible; transform: translateY(0); }
.back-to-top:hover {
  background: var(--brand);
  border-color: var(--brand);
  color: #fff;
}

/* 通用响应式 */
@media (max-width: 991.98px) {
  .cat-cover { padding: 38px 0 44px; }
  .category-main { padding-top: 28px; }
  .featured-content { padding: 20px; }
  .article-thumb { width: 150px; min-width: 150px; height: 115px; }
  .sidebar { margin-top: 16px; }
}

@media (max-width: 767.98px) {
  .cat-cover { padding-top: 34px; }
  .article-thumb { width: 128px; min-width: 128px; height: 100px; }
  .article-body p { -webkit-line-clamp: 3; }
  .briefing-card { margin-top: 4px; }
  .section-title-row { margin-top: 26px; }
  .list-cta-panel { padding: 30px 24px; }
  .pagination-zone .pagination { flex-wrap: wrap; }
}

@media (max-width: 575.98px) {
  .cat-cover h1 { font-size: 25px; }
  .article-list .article-item {
    display: block;
    padding: 14px;
  }
  .article-thumb {
    width: 100%;
    min-width: 100%;
    height: 140px;
    margin-bottom: 14px;
  }
  .article-body h3 { font-size: 16px; }
  .featured-banner { height: 150px; }
  .featured-content .featured-title { font-size: 18px; }
  .footer-legal .container { flex-direction: column; text-align: center; }
  .site-footer .row { row-gap: 30px; }
}

/* roulang: framework shim */
/* 覆盖 Bootstrap 等对 a/btn 的全局默认，避免导航出现下划线/蓝链 */
.site-header a,.site-header a:hover,.navbar a,.navbar a:hover,.nav-links a,.nav-links a:hover,header nav a,header nav a:hover{text-decoration:none}
.site-header .btn,.navbar .btn,.nav-cta{text-decoration:none}