/* roulang page: index */
:root {
  --bg: #0B1E2A;
  --bg-deep: #07141D;
  --bg-soft: #0F2533;
  --primary: #0B1E2A;
  --accent: #2DE1C2;
  --accent-rgb: 45, 225, 194;
  --accent2: #D5A86A;
  --panel: rgba(255, 255, 255, 0.06);
  --panel-strong: rgba(255, 255, 255, 0.10);
  --glass: rgba(255, 255, 255, 0.08);
  --line: rgba(255, 255, 255, 0.14);
  --line-soft: rgba(255, 255, 255, 0.08);
  --text: rgba(255, 255, 255, 0.92);
  --text-2: rgba(255, 255, 255, 0.68);
  --text-3: rgba(255, 255, 255, 0.46);
  --r-lg: 22px;
  --r-md: 16px;
  --r-sm: 10px;
  --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.22);
  --shadow-md: 0 12px 36px rgba(0, 0, 0, 0.16);
  --shadow-sm: 0 6px 18px rgba(0, 0, 0, 0.10);
  --section-space: 96px;
  --ease: 180ms cubic-bezier(.2, .8, .2, 1);
  --font-stack: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, -apple-system, sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-stack);
  font-size: 16px;
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

body {
  background:
    radial-gradient(circle at 84% 8%, rgba(45, 225, 194, 0.08), transparent 30%),
    radial-gradient(circle at 22% 82%, rgba(11, 30, 42, 0.9), transparent 42%),
    linear-gradient(180deg, #0B1E2A 0%, #081A26 50%, #0A2432 100%);
}

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--ease), border-color var(--ease), background var(--ease);
}

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

ul, ol {
  padding-left: 1.25rem;
}

p {
  margin: 0 0 1em;
}

h1, h2, h3, h4, h5 {
  color: #fff;
  font-weight: 700;
  line-height: 1.3;
  margin: 0 0 0.6em;
}

[hidden] {
  display: none !important;
}

:focus-visible {
  outline: 2px solid rgba(var(--accent-rgb), 0.9);
  outline-offset: 3px;
  box-shadow: none;
}

.container-inner {
  max-width: 1220px;
  margin: 0 auto;
  padding-left: 32px;
  padding-right: 32px;
}

.section {
  position: relative;
  padding: var(--section-space) 0;
}

.section-head {
  max-width: 820px;
  margin-bottom: 42px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border: 1px solid rgba(var(--accent-rgb), 0.28);
  border-radius: 999px;
  color: var(--accent);
  background: rgba(var(--accent-rgb), 0.08);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.04em;
  margin-bottom: 16px;
}

.section-title {
  font-size: clamp(26px, 3.1vw, 36px);
  margin-bottom: 12px;
  letter-spacing: -0.02em;
}

.section-title::after {
  content: "";
  display: block;
  width: 52px;
  height: 3px;
  background: var(--accent2);
  border-radius: 999px;
  margin-top: 18px;
}

.section-sub {
  color: var(--text-2);
  font-size: 16px;
  max-width: 680px;
}

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--accent);
  font-weight: 600;
  min-height: 36px;
}

.text-link:hover {
  color: #fff;
}

.text-link .fa-arrow-right {
  transition: transform var(--ease);
}

.text-link:hover .fa-arrow-right {
  transform: translateX(4px);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  min-height: 48px;
  padding: 12px 26px;
  border: 1px solid transparent;
  border-radius: 12px;
  font-size: 15px;
  font-weight: 600;
  font-family: var(--font-stack);
  cursor: pointer;
  transition: transform var(--ease), box-shadow var(--ease), background var(--ease), border-color var(--ease), opacity var(--ease);
}

.btn-primary {
  background: linear-gradient(135deg, rgba(var(--accent-rgb), 0.95), #1DBFA6);
  color: #062229;
  box-shadow: 0 10px 28px rgba(var(--accent-rgb), 0.22);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 16px 38px rgba(var(--accent-rgb), 0.28);
  color: #041A20;
}

.btn-primary:active {
  transform: translateY(0);
  box-shadow: 0 7px 18px rgba(var(--accent-rgb), 0.18);
}

.btn-ghost {
  border-color: rgba(255, 255, 255, 0.28);
  background: rgba(255, 255, 255, 0.07);
  color: #fff;
}

.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.13);
  border-color: var(--accent);
  transform: translateY(-2px);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.14);
}

.btn-ghost:active {
  transform: translateY(0);
}

/* 移动顶栏 */
.mobile-topbar {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 70;
  height: 64px;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 0 18px;
  background: rgba(8, 22, 31, 0.88);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}

.menu-btn {
  display: inline-flex;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: rgba(255,255,255,0.05);
  color: #fff;
  font-size: 19px;
  cursor: pointer;
  transition: background var(--ease), border-color var(--ease);
}

.menu-btn:hover {
  background: rgba(255,255,255,0.1);
  border-color: var(--accent);
}

.mobile-brand {
  font-size: 17px;
  font-weight: 700;
  color: #fff;
  letter-spacing: 0.01em;
}

.mobile-extra {
  font-size: 13px;
  color: var(--text-2);
  padding-right: 2px;
}

/* 遮罩 */
.nav-overlay {
  position: fixed;
  inset: 0;
  z-index: 45;
  background: rgba(3, 10, 14, 0.64);
  opacity: 0;
  pointer-events: none;
  transition: opacity 240ms ease;
  backdrop-filter: blur(2px);
}

/* 左侧侧边栏 */
.app-sidebar {
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  z-index: 60;
  width: 254px;
  display: flex;
  flex-direction: column;
  padding: 30px 18px 22px;
  background: rgba(12, 29, 40, 0.88);
  backdrop-filter: blur(16px);
  border-right: 1px solid rgba(255,255,255,0.08);
  transition: transform 260ms cubic-bezier(.2, .8, .2, 1);
}

.side-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 30px;
  padding: 4px 6px 14px;
  border-bottom: 1px solid var(--line-soft);
}

.brand-mark {
  flex: 0 0 42px;
  width: 42px;
  height: 42px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 14px;
  background: linear-gradient(135deg, rgba(45, 225, 194, 0.9), #1db9a4);
  color: #05232B;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: -0.04em;
  box-shadow: 0 10px 22px rgba(var(--accent-rgb), 0.2);
}

.brand-inner {
  display: flex;
  flex-direction: column;
  line-height: 1.4;
  min-width: 0;
}

.brand-name {
  font-size: 17px;
  font-weight: 700;
  white-space: nowrap;
  color: #fff;
}

.brand-sub {
  font-size: 12px;
  color: var(--text-3);
  letter-spacing: 0.06em;
}

.side-nav-inner {
  flex: 1;
}

.side-nav-label {
  color: var(--text-3);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.1em;
  padding: 10px 14px 8px;
}

.side-nav {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin: 0;
  padding: 0;
}

.nav-item {
  position: relative;
  display: flex;
  align-items: center;
  gap: 13px;
  padding: 12px 14px;
  border-left: 3px solid transparent;
  border-radius: 0 12px 12px 0;
  color: var(--text-2);
  font-weight: 600;
  font-size: 15px;
  min-height: 48px;
}

.nav-item .nav-icon {
  width: 20px;
  text-align: center;
  color: var(--text-3);
  font-size: 16px;
  transition: color var(--ease);
}

.nav-item:hover {
  color: var(--accent);
  background: rgba(255,255,255,0.05);
}

.nav-item:hover .nav-icon {
  color: var(--accent);
}

.nav-item.active {
  background: linear-gradient(90deg, rgba(45,225,194,0.14), rgba(45,225,194,0.02));
  border-left-color: var(--accent);
  color: var(--accent);
}

.nav-item.active .nav-icon {
  color: var(--accent);
}

.side-foot {
  border-top: 1px solid var(--line-soft);
  padding-top: 18px;
}

.side-foot-info {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 12px;
  color: var(--text-3);
  line-height: 1.6;
  padding: 0 10px;
}

.status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 4px rgba(var(--accent-rgb), 0.12);
  flex: 0 0 auto;
}

/* 主内容外框 */
.layout-main {
  margin-left: 254px;
  min-height: 100vh;
  position: relative;
  z-index: 1;
}

/* Hero */
.hero {
  position: relative;
  display: flex;
  align-items: center;
  min-height: 88vh;
  overflow: hidden;
  padding: clamp(64px, 9vw, 128px) 0;
  background:
    linear-gradient(90deg, rgba(7, 20, 29, 0.92) 0%, rgba(10, 30, 41, 0.74) 55%, rgba(9, 33, 45, 0.35) 100%),
    url("/assets/images/backpic/back-1.png") center center / cover no-repeat;
}

.hero::after {
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  height: 280px;
  background: linear-gradient(to bottom, transparent, var(--bg));
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 840px;
}

.hero-pretitle {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--accent);
  background: rgba(var(--accent-rgb), 0.08);
  border: 1px solid rgba(var(--accent-rgb), 0.25);
  padding: 7px 15px;
  border-radius: 999px;
  margin-bottom: 22px;
}

.hero-title {
  font-size: clamp(32px, 5.6vw, 58px);
  font-weight: 700;
  line-height: 1.2;
  color: #fff;
  letter-spacing: -0.03em;
  max-width: 800px;
  margin-bottom: 22px;
}

.hero-divider {
  width: 56px;
  height: 4px;
  background: var(--accent2);
  border-radius: 999px;
  margin-bottom: 28px;
}

.hero-lead {
  font-size: clamp(16px, 2.2vw, 21px);
  line-height: 1.8;
  color: rgba(255,255,255,0.82);
  max-width: 610px;
  margin-bottom: 36px;
}

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

.hero-note {
  margin-top: 26px;
  color: var(--text-3);
  font-size: 13px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.hero-note i {
  color: var(--accent);
}

/* 品牌理念区 */
.philosophy {
  background: rgba(255,255,255,0.02);
  border-bottom: 1px solid var(--line-soft);
}

.philosophy-grid {
  display: grid;
  grid-template-columns: 1.08fr 0.92fr;
  gap: clamp(32px, 6vw, 88px);
  align-items: start;
}

.philosophy-copy p {
  color: var(--text-2);
  margin-bottom: 1.2em;
  font-size: 16px;
}

.philosophy-copy strong {
  color: var(--text);
  font-weight: 600;
}

.philosophy-list {
  display: flex;
  flex-direction: column;
  gap: 22px;
}

.diff-item {
  display: flex;
  gap: 15px;
  padding: 18px 18px 18px 16px;
  background: var(--panel);
  border: 1px solid var(--line-soft);
  border-radius: var(--r-md);
  transition: border-color var(--ease), background var(--ease), transform var(--ease);
}

.diff-item:hover {
  border-color: rgba(var(--accent-rgb), 0.4);
  background: var(--panel-strong);
  transform: translateY(-2px);
}

.diff-icon {
  flex: 0 0 38px;
  width: 38px;
  height: 38px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
  background: rgba(var(--accent-rgb), 0.12);
  color: var(--accent);
  font-size: 17px;
}

.diff-body strong {
  color: #fff;
  font-size: 16px;
  display: block;
  margin-bottom: 4px;
}

.diff-body span {
  color: var(--text-2);
  font-size: 14px;
  line-height: 1.7;
}

/* 精选卡片 */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 26px;
}

.feature-card {
  position: relative;
  background: rgba(255, 255, 255, 0.055);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  overflow: hidden;
  transition: transform var(--ease), box-shadow var(--ease), border-color var(--ease);
  display: flex;
  flex-direction: column;
}

.feature-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.5), transparent);
  z-index: 2;
  pointer-events: none;
}

.feature-card:hover {
  transform: translateY(-6px);
  border-color: rgba(var(--accent-rgb), 0.46);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.18);
}

.feature-media {
  position: relative;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: rgba(255,255,255,0.05);
}

.feature-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 500ms ease;
}

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

.feature-badge {
  position: absolute;
  top: 14px;
  left: 14px;
  display: inline-flex;
  align-items: center;
  background: rgba(10, 29, 41, 0.82);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255,255,255,0.22);
  color: var(--accent);
  font-size: 12px;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 999px;
  z-index: 3;
}

.feature-card-body {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  flex: 1;
  padding: 24px 26px 26px;
}

.feature-title {
  font-size: 22px;
  line-height: 1.4;
  color: #fff;
  margin-bottom: 12px;
}

.feature-summary {
  color: var(--text-2);
  font-size: 15px;
  margin-bottom: 18px;
}

.feature-link {
  margin-top: auto;
  color: var(--accent);
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 44px;
}

.feature-link:hover {
  color: #fff;
}

.feature-link .fa-arrow-right {
  transition: transform var(--ease);
}

.feature-link:hover .fa-arrow-right {
  transform: translateX(4px);
}

/* 信任背书 */
.trust {
  border-top: 1px solid var(--line-soft);
  background:
    radial-gradient(circle at 85% 12%, rgba(45,225,194,0.08), transparent 35%),
    linear-gradient(180deg, rgba(255,255,255,0.02), rgba(255,255,255,0.005));
}

.trust-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 32px;
  align-items: center;
}

.trust-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.stat-item {
  background: var(--panel);
  border: 1px solid var(--line-soft);
  border-radius: var(--r-md);
  padding: 22px 16px;
  text-align: center;
}

.stat-num {
  font-size: 30px;
  font-weight: 700;
  color: #fff;
  font-variant-numeric: tabular-nums;
  line-height: 1.2;
  letter-spacing: -0.03em;
}

.stat-num em {
  color: var(--accent);
  font-style: normal;
  font-size: 22px;
  margin-left: 2px;
}

.stat-label {
  display: block;
  margin-top: 8px;
  color: var(--text-3);
  font-size: 13px;
}

.trust-labels {
  display: flex;
  flex-wrap: wrap;
  gap: 13px;
}

.trust-label {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  background: rgba(9, 30, 43, 0.5);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 9px 18px;
  color: var(--text-2);
  font-size: 14px;
  font-weight: 600;
}

.trust-label i {
  color: var(--accent);
}

/* 信息列表 CMS */
.news-section {
  background: rgba(255,255,255,0.02);
  border-top: 1px solid var(--line-soft);
}

.news-head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 18px;
  margin-bottom: 36px;
}

.news-head .section-title {
  margin-bottom: 0;
}

.news-more {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--text-2);
  font-size: 14px;
  font-weight: 600;
  padding: 10px 0;
}

.news-more:hover {
  color: var(--accent);
}

.news-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 22px;
}

.news-card {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 24px 25px;
  background: rgba(255,255,255,0.045);
  border: 1px solid var(--line-soft);
  border-radius: var(--r-md);
  transition: border-color var(--ease), background var(--ease), transform var(--ease), box-shadow var(--ease);
}

.news-card:hover {
  border-color: rgba(var(--accent-rgb), 0.36);
  background: rgba(255,255,255,0.07);
  transform: translateY(-3px);
  box-shadow: var(--shadow-sm);
}

.news-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}

.badge {
  display: inline-flex;
  align-items: center;
  background: #EAF3F8;
  color: #164156;
  font-size: 12px;
  font-weight: 600;
  border-radius: 999px;
  padding: 3px 12px;
}

.news-date {
  color: var(--text-3);
  font-size: 13px;
}

.news-title {
  font-size: 18px;
  line-height: 1.5;
  color: #fff;
  margin: 2px 0 0;
}

.news-summary {
  color: var(--text-2);
  font-size: 14px;
  line-height: 1.7;
  margin: 0;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.empty-state {
  grid-column: 1 / -1;
  text-align: center;
  padding: 38px 24px;
  border: 1px dashed var(--line);
  border-radius: var(--r-md);
  color: var(--text-2);
  background: rgba(255,255,255,0.02);
}

/* FAQ */
.faq-list {
  max-width: 880px;
}

.faq-item {
  background: transparent;
  border: 1px solid var(--line-soft);
  border-radius: var(--r-md);
  margin-bottom: 14px;
  overflow: hidden;
  transition: border-color var(--ease), background var(--ease);
}

.faq-item:hover {
  border-color: rgba(var(--accent-rgb), 0.36);
  background: rgba(255,255,255,0.03);
}

.faq-q {
  list-style: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 18px 22px;
  font-size: 16px;
  font-weight: 600;
  color: #fff;
  user-select: none;
}

.faq-q::-webkit-details-marker {
  display: none;
}

.faq-q-icon {
  flex: 0 0 28px;
  width: 28px;
  height: 28px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: rgba(var(--accent-rgb), 0.12);
  color: var(--accent);
  font-size: 16px;
  transition: transform 220ms ease, background var(--ease);
}

.faq-item[open] .faq-q-icon {
  transform: rotate(45deg);
  background: rgba(var(--accent-rgb), 0.2);
}

.faq-answer {
  padding: 0 22px 22px;
  color: var(--text-2);
  font-size: 15px;
  border-top: 1px solid var(--line-soft);
  margin-top: 0;
}

.faq-answer p {
  margin: 14px 0 0;
}

/* CTA */
.cta-section {
  padding: 0;
}

.cta-card {
  position: relative;
  overflow: hidden;
  border-radius: 28px;
  padding: clamp(28px, 6vw, 68px);
  background:
    linear-gradient(105deg, rgba(7, 19, 28, 0.95) 10%, rgba(10, 36, 50, 0.78) 80%),
    url("/assets/images/backpic/back-3.png") center center / cover no-repeat;
  border: 1px solid var(--line);
  text-align: center;
}

.cta-card::before {
  content: "";
  position: absolute;
  top: -60%;
  left: -30%;
  width: 70%;
  height: 200%;
  background: radial-gradient(circle, rgba(45,225,194,0.1), transparent 65%);
  pointer-events: none;
}

.cta-title {
  font-size: clamp(24px, 3.8vw, 36px);
  margin-bottom: 12px;
  position: relative;
  z-index: 1;
}

.cta-desc {
  max-width: 620px;
  margin: 0 auto 30px;
  color: var(--text-2);
  position: relative;
  z-index: 1;
}

.cta-form {
  position: relative;
  z-index: 1;
  max-width: 560px;
  margin: 0 auto;
}

.cta-row {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  justify-content: center;
}

.cta-input {
  flex: 1 1 260px;
  height: 50px;
  padding: 0 16px;
  border: 1px solid rgba(255,255,255,0.18);
  border-radius: 10px;
  background: rgba(8, 24, 34, 0.7);
  color: #fff;
  font-size: 15px;
  font-family: var(--font-stack);
  transition: border-color var(--ease), box-shadow var(--ease);
}

.cta-input::placeholder {
  color: rgba(255,255,255,0.5);
}

.cta-input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(var(--accent-rgb), 0.16);
}

.cta-btn {
  height: 50px;
  padding: 0 24px;
  border: 1px solid transparent;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--accent), #22c9ae);
  color: #05232C;
  font-weight: 700;
  font-size: 15px;
  font-family: var(--font-stack);
  cursor: pointer;
  transition: transform var(--ease), box-shadow var(--ease), background var(--ease);
}

.cta-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 26px rgba(var(--accent-rgb), 0.22);
}

.cta-success {
  margin-top: 14px;
  color: var(--accent);
  font-size: 14px;
}

.cta-note {
  margin-top: 10px;
  color: var(--text-3);
  font-size: 12px;
}

/* Footer */
.site-footer {
  padding: 64px 0 26px;
  margin-top: var(--section-space);
  border-top: 1px solid var(--line-soft);
  background: rgba(5, 16, 23, 0.6);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 0.8fr 0.8fr 1fr;
  gap: 36px;
}

.footer-brand {
  margin-bottom: 18px;
}

.footer-brand-name {
  font-size: 20px;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 10px;
}

.footer-desc {
  color: var(--text-2);
  font-size: 14px;
  max-width: 320px;
}

.footer-col h4 {
  color: #fff;
  font-size: 15px;
  margin-bottom: 16px;
  font-weight: 700;
}

.footer-links {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-links a {
  color: var(--text-2);
  font-size: 14px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.footer-links a:hover {
  color: var(--accent);
  padding-left: 3px;
}

.footer-note {
  color: var(--text-3);
  font-size: 13px;
  line-height: 1.8;
}

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px;
  align-items: center;
  border-top: 1px solid var(--line-soft);
  padding-top: 22px;
  margin-top: 46px;
  color: var(--text-3);
  font-size: 13px;
}

.footer-bottom a {
  color: var(--text-3);
}

.footer-bottom a:hover {
  color: var(--accent);
}

@media (max-width: 1200px) {
  .container-inner {
    padding-left: 24px;
    padding-right: 24px;
  }

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

@media (max-width: 900px) {
  .mobile-topbar {
    display: flex;
  }

  .app-sidebar {
    top: 64px;
    height: calc(100vh - 64px);
    transform: translateX(-104%);
  }

  body.nav-open .app-sidebar {
    transform: translateX(0);
  }

  body.nav-open .nav-overlay {
    opacity: 1;
    pointer-events: auto;
  }

  .layout-main {
    margin-left: 0;
    padding-top: 64px;
  }

  .hero {
    min-height: 76vh;
  }

  .philosophy-grid {
    grid-template-columns: 1fr;
    gap: 34px;
  }

  .feature-grid,
  .news-list {
    grid-template-columns: 1fr;
  }

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

@media (max-width: 640px) {
  :root {
    --section-space: 64px;
  }

  .container-inner {
    padding-left: 18px;
    padding-right: 18px;
  }

  body {
    font-size: 15px;
  }

  .mobile-brand {
    font-size: 16px;
  }

  .mobile-extra {
    display: none;
  }

  .hero {
    min-height: auto;
    padding: 72px 0 88px;
  }

  .hero-title {
    font-size: 28px;
  }

  .hero-lead {
    font-size: 16px;
  }

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

  .btn {
    min-height: 46px;
  }

  .section-title {
    font-size: 25px;
  }

  .cta-row {
    flex-direction: column;
    align-items: stretch;
  }

  .cta-btn {
    width: 100%;
  }

  .cta-card {
    border-radius: 20px;
    padding: 30px 20px;
  }

  .trust-stats {
    grid-template-columns: 1fr;
  }

  .stat-item {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    text-align: left;
    padding: 18px 20px;
  }

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

  .stat-label {
    margin: 0;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 30px;
  }

  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
  }

  .feature-card-body {
    padding: 20px;
  }

  .feature-title {
    font-size: 19px;
  }

  .news-card {
    padding: 20px;
  }
}

/* roulang page: category1 */
:root {
      --bg-deep: #0B1E2A;
      --bg-panel: rgba(255, 255, 255, 0.05);
      --bg-glass: rgba(255, 255, 255, 0.11);
      --bg-muted: rgba(255, 255, 255, 0.04);
      --accent: #2DE1C2;
      --accent-2: #D5A86A;
      --text-main: rgba(255, 255, 255, 0.94);
      --text-sub: rgba(255, 255, 255, 0.68);
      --text-weak: rgba(255, 255, 255, 0.46);
      --border-light: rgba(255, 255, 255, 0.14);
      --border-accent: rgba(45, 225, 194, 0.5);
      --radius-large: 22px;
      --radius-medium: 16px;
      --radius-small: 11px;
      --shadow-card: 0 24px 70px rgba(0, 0, 0, 0.26);
      --font-main: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, -apple-system, sans-serif;
    }

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

    html {
      scroll-behavior: smooth;
    }

    body {
      margin: 0;
      font-family: var(--font-main);
      background:
        radial-gradient(circle at 18% 10%, rgba(45, 225, 194, 0.09), transparent 32%),
        radial-gradient(circle at 88% 18%, rgba(19, 90, 110, 0.28), transparent 36%),
        var(--bg-deep);
      color: var(--text-main);
      line-height: 1.75;
      -webkit-font-smoothing: antialiased;
      overflow-x: hidden;
    }

    a {
      color: inherit;
      text-decoration: none;
    }

    a:visited {
      color: inherit;
    }

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

    input,
    button,
    textarea {
      font-family: inherit;
    }

    button,
    a {
      -webkit-tap-highlight-color: transparent;
    }

    :focus-visible {
      outline: 2px solid var(--accent);
      outline-offset: 3px;
    }

    .skip-link {
      position: absolute;
      left: -999px;
      top: 10px;
      background: var(--accent);
      color: #06262e;
      padding: 8px 16px;
      border-radius: 8px;
      z-index: 1000;
    }

    .skip-link:focus {
      left: 16px;
    }

    .visually-hidden {
      position: absolute;
      width: 1px;
      height: 1px;
      padding: 0;
      margin: -1px;
      overflow: hidden;
      clip: rect(0, 0, 0, 0);
      white-space: nowrap;
      border: 0;
    }

    .app-sidebar {
      position: fixed;
      top: 0;
      left: 0;
      width: 264px;
      height: 100vh;
      background: rgba(255, 255, 255, 0.055);
      backdrop-filter: blur(16px);
      -webkit-backdrop-filter: blur(16px);
      border-right: 1px solid rgba(255, 255, 255, 0.09);
      display: flex;
      flex-direction: column;
      z-index: 120;
      transition: transform 0.28s ease;
    }

    .sidebar-inner {
      display: flex;
      flex-direction: column;
      height: 100%;
      padding: 30px 18px 22px;
    }

    .brand-logo {
      display: flex;
      align-items: center;
      gap: 12px;
      padding: 0 10px 20px;
      border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }

    .brand-symbol {
      width: 42px;
      height: 42px;
      flex: 0 0 auto;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      border-radius: 14px;
      background: linear-gradient(145deg, rgba(45, 225, 194, 0.9), rgba(18, 126, 142, 0.92));
      box-shadow: 0 10px 26px rgba(45, 225, 194, 0.22);
      color: #06211f;
      font-size: 20px;
    }

    .brand-name {
      font-size: 21px;
      font-weight: 700;
      letter-spacing: -0.2px;
      color: rgba(255, 255, 255, 0.96);
      line-height: 1.25;
    }

    .brand-name small {
      display: block;
      font-size: 12px;
      color: var(--text-weak);
      font-weight: 400;
      letter-spacing: .6px;
      margin-top: 3px;
    }

    .side-nav {
      display: flex;
      flex-direction: column;
      gap: 6px;
      padding-top: 22px;
      flex: 1 1 auto;
    }

    .nav-item {
      display: flex;
      align-items: center;
      gap: 12px;
      padding: 12px 14px;
      border-radius: 12px;
      color: var(--text-sub);
      font-size: 15px;
      line-height: 1.4;
      border-left: 3px solid transparent;
      transition: background .2s, color .2s, transform .18s;
    }

    .nav-item i {
      width: 20px;
      text-align: center;
      font-size: 15px;
      color: var(--text-weak);
      transition: color .2s;
    }

    .nav-item:hover {
      background: rgba(255, 255, 255, 0.07);
      color: var(--accent);
      transform: translateY(-1px);
    }

    .nav-item:hover i {
      color: var(--accent);
    }

    .nav-item.active {
      background: rgba(45, 225, 194, 0.1);
      border-left-color: var(--accent);
      color: #fff;
    }

    .nav-item.active i {
      color: var(--accent);
    }

    .sidebar-foot {
      margin-top: 18px;
      padding: 18px 14px 6px;
      border-top: 1px solid rgba(255, 255, 255, 0.1);
    }

    .sidebar-foot-item {
      display: flex;
      align-items: flex-start;
      gap: 9px;
      color: var(--text-weak);
      font-size: 13px;
      line-height: 1.55;
    }

    .sidebar-foot-item i {
      color: var(--accent);
      margin-top: 4px;
    }

    .sidebar-note {
      margin-top: 14px;
      display: inline-flex;
      gap: 8px;
      align-items: center;
      font-size: 13px;
      color: var(--text-weak);
      background: rgba(255, 255, 255, 0.05);
      padding: 8px 12px;
      border-radius: 10px;
    }

    .sidebar-note i {
      color: var(--accent-2);
    }

    .sidebar-overlay {
      display: none;
      position: fixed;
      inset: 0;
      background: rgba(4, 12, 18, 0.7);
      backdrop-filter: blur(3px);
      z-index: 110;
    }

    .main-wrap {
      display: flex;
      flex-direction: column;
      min-height: 100vh;
      margin-left: 264px;
      max-width: 1260px;
      padding-left: 38px;
      padding-right: 38px;
    }

    .topbar {
      display: none;
    }

    main {
      flex: 1;
    }

    blockquote,
    dl,
    dd,
    h1,
    h2,
    h3,
    h4,
    h5,
    h6,
    figure,
    p,
    pre {
      margin: 0;
    }

    .block-section {
      padding: 84px 0 28px;
    }

    .container-inner {
      width: 100%;
    }

    .category-hero {
      position: relative;
      min-height: 48vh;
      display: flex;
      align-items: center;
      padding: 64px 0 34px;
      overflow: hidden;
      isolation: isolate;
    }

    .category-hero::before {
      content: "";
      position: absolute;
      inset: 0;
      background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
      z-index: -2;
      opacity: .55;
    }

    .category-hero::after {
      content: "";
      position: absolute;
      inset: 0;
      z-index: -1;
      background: linear-gradient(90deg, rgba(11, 30, 42, .97) 4%, rgba(11, 30, 42, .72) 52%, rgba(11, 30, 42, .38) 100%);
    }

    .category-hero .hero-grid {
      display: grid;
      grid-template-columns: 1.08fr .92fr;
      gap: 34px;
      align-items: center;
      width: 100%;
    }

    .crumb-row {
      display: flex;
      align-items: center;
      gap: 9px;
      font-size: 14px;
      color: var(--text-weak);
      margin-bottom: 24px;
    }

    .crumb-row a {
      color: var(--text-sub);
      transition: color .2s;
    }

    .crumb-row a:hover {
      color: var(--accent);
    }

    .crumb-row i {
      font-size: 12px;
      color: var(--text-weak);
    }

    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      color: var(--accent);
      font-weight: 500;
      font-size: 14px;
      letter-spacing: 1px;
      margin-bottom: 16px;
    }

    .eyebrow i {
      color: var(--accent-2);
    }

    .category-hero h1 {
      font-size: clamp(36px, 4vw, 54px);
      line-height: 1.12;
      font-weight: 700;
      color: #fff;
      margin-bottom: 18px;
      position: relative;
      display: inline-block;
    }

    .category-hero h1::after {
      content: "";
      display: block;
      width: 54px;
      height: 4px;
      background: var(--accent-2);
      border-radius: 4px;
      margin-top: 16px;
    }

    .category-lead {
      font-size: 17px;
      line-height: 1.85;
      color: var(--text-sub);
      max-width: 560px;
      margin-bottom: 30px;
    }

    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 14px;
      margin-bottom: 28px;
    }

    .btn-main,
    .btn-ghost,
    .btn-light,
    .btn-accent {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 10px;
      border-radius: 12px;
      font-size: 15px;
      font-weight: 600;
      padding: 12px 24px;
      cursor: pointer;
      border: 0;
      transition: transform .2s ease, box-shadow .2s ease, background .2s ease, border-color .2s;
    }

    .btn-main {
      background: linear-gradient(135deg, #1fcdaa, #2ce0c1);
      color: #032a27;
      box-shadow: 0 14px 34px rgba(45, 225, 194, 0.18);
    }

    .btn-main:hover {
      transform: translateY(-2px);
      box-shadow: 0 20px 44px rgba(45, 225, 194, 0.26);
      filter: brightness(1.03);
    }

    .btn-main:active {
      transform: translateY(0);
      box-shadow: 0 8px 18px rgba(45, 225, 194, 0.16);
    }

    .btn-ghost {
      background: rgba(255, 255, 255, 0.07);
      border: 1px solid var(--border-light);
      color: rgba(255, 255, 255, 0.9);
      backdrop-filter: blur(6px);
    }

    .btn-ghost:hover {
      border-color: var(--border-accent);
      color: var(--accent);
      background: rgba(255, 255, 255, 0.1);
      transform: translateY(-2px);
      box-shadow: 0 14px 28px rgba(0, 0, 0, 0.14);
    }

    .btn-light {
      background: rgba(45, 225, 194, 0.1);
      border: 1px solid rgba(45, 225, 194, 0.3);
      color: var(--accent);
    }

    .btn-light:hover {
      background: rgba(45, 225, 194, 0.18);
      border-color: var(--accent);
      color: #fff;
      transform: translateY(-2px);
    }

    .hero-chips {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
    }

    .hero-chips span {
      background: rgba(255, 255, 255, 0.08);
      border: 1px solid rgba(255, 255, 255, 0.1);
      padding: 5px 12px;
      border-radius: 50px;
      color: var(--text-sub);
      font-size: 13px;
    }

    .hero-visual {
      position: relative;
    }

    .hero-figure {
      position: relative;
      border-radius: 24px;
      overflow: hidden;
      box-shadow: var(--shadow-card);
      transform: perspective(900px) rotateY(-2deg) rotateX(1deg);
    }

    .hero-figure img {
      width: 100%;
      height: 100%;
      min-height: 270px;
      object-fit: cover;
    }

    .figure-float {
      position: absolute;
      background: rgba(255, 255, 255, 0.11);
      border: 1px solid rgba(255, 255, 255, 0.2);
      backdrop-filter: blur(14px);
      -webkit-backdrop-filter: blur(14px);
      border-radius: 12px;
      color: rgba(255, 255, 255, 0.95);
      font-size: 13px;
      padding: 9px 13px;
      display: flex;
      align-items: center;
      gap: 8px;
      box-shadow: 0 14px 24px rgba(0, 0, 0, 0.18);
    }

    .figure-float i {
      color: var(--accent);
    }

    .figure-float.tag1 {
      left: -16px;
      top: 18%;
    }

    .figure-float.tag2 {
      right: 14px;
      bottom: 20px;
    }

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

    .section-head .section-kicker {
      font-size: 14px;
      color: var(--accent);
      letter-spacing: 1.5px;
      margin-bottom: 8px;
      font-weight: 500;
    }

    .section-head h2 {
      font-size: clamp(25px, 2.8vw, 34px);
      color: #fff;
      line-height: 1.3;
      margin-bottom: 14px;
      position: relative;
      display: inline-block;
    }

    .section-head h2::after {
      content: "";
      display: block;
      width: 48px;
      height: 3px;
      background: var(--accent-2);
      border-radius: 3px;
      margin-top: 13px;
    }

    .section-desc {
      color: var(--text-sub);
      max-width: 680px;
      margin-top: 12px;
      font-size: 16px;
    }

    .topic-layout-first {
      display: grid;
      grid-template-columns: 1.15fr 0.85fr;
      gap: 20px;
      margin-bottom: 20px;
    }

    .topic-card {
      background: rgba(255, 255, 255, 0.05);
      border: 1px solid rgba(255, 255, 255, 0.11);
      border-radius: var(--radius-large);
      overflow: hidden;
      backdrop-filter: blur(8px);
      box-shadow: 0 12px 28px rgba(0, 0, 0, 0.16);
      transition: transform .2s, border-color .2s, box-shadow .2s;
    }

    .topic-card:hover {
      border-color: rgba(45, 225, 194, 0.42);
      transform: translateY(-4px);
      box-shadow: 0 22px 46px rgba(0, 0, 0, 0.24);
    }

    .topic-card-feature .topic-media {
      height: 240px;
    }

    .topic-card-feature .topic-media img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }

    .topic-body {
      padding: 22px;
      display: flex;
      gap: 16px;
    }

    .topic-feature .topic-body {
      flex-direction: column;
    }

    .topic-index {
      flex-shrink: 0;
      font-size: 26px;
      font-weight: 800;
      color: transparent;
      -webkit-text-stroke: 1px var(--accent);
      line-height: 1;
      font-family: "Helvetica Neue", "Arial", sans-serif;
    }

    .topic-body h3 {
      color: #fff;
      font-size: 20px;
      line-height: 1.4;
      margin-bottom: 8px;
    }

    .topic-body p,
    .topic-feature .topic-copy p {
      color: var(--text-sub);
      font-size: 15px;
      margin-bottom: 12px;
    }

    .topic-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 7px;
      margin: 10px 0 14px;
      padding-left: 0;
      list-style: none;
    }

    .topic-tags li {
      background: rgba(255, 255, 255, 0.08);
      color: var(--text-sub);
      font-size: 13px;
      padding: 4px 10px;
      border-radius: 20px;
      border: 1px solid rgba(255, 255, 255, 0.08);
    }

    .text-link {
      display: inline-flex;
      align-items: center;
      gap: 7px;
      color: var(--accent);
      font-size: 14px;
      font-weight: 500;
      transition: gap .2s, color .2s;
    }

    .text-link:hover {
      gap: 11px;
      color: #fff;
    }

    .text-link i {
      font-size: 12px;
    }

    .topic-stack {
      display: flex;
      flex-direction: column;
      gap: 20px;
    }

    .topic-stack .topic-card {
      display: grid;
      grid-template-columns: 0.9fr 1.1fr;
      min-height: 128px;
      align-items: stretch;
    }

    .topic-stack .topic-media {
      position: relative;
      min-height: 130px;
      background-color: #142a38;
    }

    .topic-stack .topic-media img {
      position: absolute;
      inset: 0;
      width: 100%;
      height: 100%;
      object-fit: cover;
    }

    .topic-stack .topic-body {
      align-items: flex-start;
      flex-direction: column;
      justify-content: center;
      padding: 10px 18px 10px 6px;
    }

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

    .topic-stack .topic-body p {
      font-size: 14px;
      margin-bottom: 8px;
    }

    .topic-stack .topic-index {
      display: none;
    }

    .topic-card-lower {
      display: grid;
      grid-template-columns: 0.8fr 1.2fr;
      background: rgba(45, 225, 194, 0.06);
    }

    .topic-card-lower .topic-media {
      min-height: 200px;
      background: #1a303a;
    }

    .topic-card-lower .topic-media img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }

    .topic-card-lower .topic-body {
      align-items: center;
      justify-content: center;
      flex-direction: column;
      padding: 26px 30px;
    }

    .topic-card-lower .topic-body h3 {
      font-size: 22px;
    }

    .steps-section {
      padding-top: 94px;
    }

    .steps-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 18px;
      counter-reset: step;
    }

    .step-item {
      position: relative;
      background: rgba(255, 255, 255, 0.05);
      border: 1px solid rgba(255, 255, 255, 0.1);
      border-radius: 18px;
      padding: 24px 20px;
      transition: transform .2s, background .2s;
    }

    .step-item:hover {
      background: rgba(255, 255, 255, 0.08);
      transform: translateY(-4px);
    }

    .step-number {
      font-size: 30px;
      font-weight: 800;
      line-height: 1;
      color: transparent;
      -webkit-text-stroke: 1.4px var(--accent-2);
      margin-bottom: 18px;
    }

    .step-item h3 {
      color: #fff;
      font-size: 17px;
      margin-bottom: 8px;
      line-height: 1.45;
    }

    .step-item p {
      color: var(--text-sub);
      font-size: 14px;
    }

    .diagnose-section {
      padding-top: 94px;
    }

    .diagnose-grid {
      display: grid;
      grid-template-columns: 0.95fr 1.05fr;
      gap: 48px;
      align-items: center;
    }

    .diagnose-media {
      position: relative;
      border-radius: 22px;
      overflow: hidden;
      box-shadow: var(--shadow-card);
    }

    .diagnose-media::before {
      content: "";
      display: block;
      padding-bottom: 76%;
    }

    .diagnose-media img {
      position: absolute;
      inset: 0;
      width: 100%;
      height: 100%;
      object-fit: cover;
    }

    .diagnose-media::after {
      content: "";
      position: absolute;
      inset: 0;
      background: linear-gradient(210deg, rgba(11, 30, 42, 0.2), rgba(11, 30, 42, 0));
    }

    .diagnose-copy .section-head {
      margin-bottom: 20px;
    }

    .diagnose-copy .section-head h2 {
      font-size: 28px;
    }

    .diagnose-copy > p {
      color: var(--text-sub);
      margin-bottom: 20px;
    }

    .check-list {
      display: grid;
      gap: 14px;
      margin: 0 0 26px;
      padding-left: 0;
      list-style: none;
    }

    .check-list li {
      background: rgba(255, 255, 255, 0.04);
      border: 1px solid rgba(255, 255, 255, 0.07);
      border-radius: 13px;
      color: var(--text-sub);
      padding: 12px 16px;
      font-size: 14px;
    }

    .check-list li strong {
      color: #f4f8fa;
      display: block;
      font-size: 14px;
      margin-bottom: 4px;
    }

    .trust-section {
      padding-top: 94px;
    }

    .trust-panel {
      background: linear-gradient(130deg, rgba(255, 255, 255, 0.07), rgba(255, 255, 255, 0.03));
      border: 1px solid rgba(255, 255, 255, 0.09);
      border-radius: 26px;
      padding: 38px 40px;
      display: grid;
      grid-template-columns: 1fr 1.1fr;
      gap: 46px;
      align-items: center;
      backdrop-filter: blur(10px);
    }

    .trust-metrics {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 8px;
    }

    .metric-item {
      background: rgba(255, 255, 255, 0.05);
      border-radius: 16px;
      padding: 18px 10px;
      text-align: center;
      border: 1px solid rgba(255, 255, 255, 0.07);
    }

    .metric-item strong {
      display: block;
      font-size: 30px;
      line-height: 1.2;
      color: var(--accent);
      font-family: "Helvetica Neue", "Arial", sans-serif;
      font-variant-numeric: tabular-nums;
      margin-bottom: 3px;
    }

    .metric-item span {
      font-size: 13px;
      color: var(--text-sub);
    }

    .trust-tags {
      display: grid;
      gap: 12px;
    }

    .trust-tag-line {
      display: flex;
      gap: 12px;
      align-items: flex-start;
      background: rgba(255, 255, 255, 0.05);
      border-left: 3px solid var(--accent);
      padding: 13px 16px;
      border-radius: 12px;
      color: var(--text-sub);
      font-size: 15px;
    }

    .trust-tag-line i {
      color: var(--accent);
      margin-top: 4px;
    }

    .faq-section {
      padding-top: 94px;
    }

    .faq-panel {
      max-width: 900px;
    }

    .faq-panel .faq-list {
      list-style: none;
      margin: 0;
      padding: 0;
      display: grid;
      gap: 14px;
    }

    .faq-list .accordion-item {
      background: rgba(255, 255, 255, 0.045);
      border: 1px solid rgba(255, 255, 255, 0.1);
      border-radius: 14px;
      overflow: hidden;
      transition: border-color .2s;
    }

    .faq-list .accordion-item:hover {
      border-color: rgba(255, 255, 255, 0.18);
    }

    .faq-list .accordion-title {
      background: transparent;
      border: 0;
      color: #fff;
      font-weight: 600;
      font-size: 16px;
      line-height: 1.6;
      padding: 18px 22px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      gap: 20px;
      position: relative;
    }

    .faq-list .accordion-title:hover,
    .faq-list .accordion-item.is-active .accordion-title {
      background: rgba(255, 255, 255, 0.04);
      color: var(--accent);
    }

    .faq-arrow {
      font-size: 13px;
      color: var(--text-weak);
      transition: transform .25s;
      flex: 0 0 auto;
    }

    .accordion-item.is-active .faq-arrow {
      transform: rotate(180deg);
      color: var(--accent);
    }

    .faq-list .accordion-content {
      background: transparent !important;
      border-top: 1px dashed rgba(255, 255, 255, 0.1);
      color: var(--text-sub);
      padding: 8px 22px 22px;
      font-size: 15px;
      line-height: 1.85;
    }

    .faq-list .accordion-content p {
      margin-bottom: 0;
    }

    .cta-subscribe {
      padding-top: 90px;
      padding-bottom: 30px;
    }

    .subscribe-card {
      background:
        radial-gradient(circle at 10% 20%, rgba(45, 225, 194, 0.12), transparent 38%),
        rgba(255, 255, 255, 0.06);
      border: 1px solid rgba(255, 255, 255, 0.12);
      border-radius: 26px;
      padding: 40px 42px;
      display: flex;
      flex-direction: column;
      gap: 22px;
      align-items: flex-start;
      box-shadow: var(--shadow-card);
    }

    .subscribe-card h2 {
      color: #fff;
      font-size: 27px;
      line-height: 1.35;
      margin-bottom: 4px;
    }

    .subscribe-card > p {
      color: var(--text-sub);
      max-width: 620px;
      margin-bottom: 4px;
    }

    .subscribe-form {
      display: flex;
      width: 100%;
      max-width: 640px;
      gap: 12px;
      flex-wrap: wrap;
    }

    .subscribe-form input[type="email"] {
      min-height: 48px;
      border: 1px solid rgba(255, 255, 255, 0.18);
      background: rgba(255, 255, 255, 0.08);
      border-radius: 11px;
      padding: 0 16px;
      color: #fff;
      font-size: 15px;
      flex: 1 1 280px;
      box-shadow: none;
      margin: 0;
    }

    .subscribe-form input[type="email"]::placeholder {
      color: var(--text-weak);
    }

    .subscribe-form input[type="email"]:focus {
      background: rgba(255, 255, 255, 0.1);
      border-color: var(--accent);
      box-shadow: 0 0 0 3px rgba(45, 225, 194, 0.15);
    }

    .subscribe-extra-links {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 20px;
    }

    .site-footer {
      margin-top: 70px;
      margin-bottom: 24px;
      background: rgba(255, 255, 255, 0.035);
      border: 1px solid rgba(255, 255, 255, 0.07);
      border-radius: 22px;
      padding: 36px 32px 20px;
      backdrop-filter: blur(8px);
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.7fr 1fr 1fr 1.6fr;
      gap: 28px;
    }

    .footer-brand-name {
      display: flex;
      align-items: center;
      gap: 10px;
      color: #fff;
      font-size: 19px;
      font-weight: 700;
      margin-bottom: 14px;
    }

    .brand-mark {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 28px;
      height: 28px;
      border-radius: 9px;
      background: rgba(45, 225, 194, 0.2);
      border: 1px solid rgba(45, 225, 194, 0.3);
      color: var(--accent);
      font-size: 12px;
      font-weight: 700;
    }

    .footer-desc {
      color: var(--text-sub);
      font-size: 14px;
      line-height: 1.75;
      margin-bottom: 0;
    }

    .footer-col h4 {
      color: #fff;
      font-size: 14px;
      font-weight: 600;
      letter-spacing: 1px;
      margin-bottom: 12px;
    }

    .footer-links {
      list-style: none;
      margin: 0;
      padding: 0;
      display: grid;
      gap: 6px;
    }

    .footer-links li a {
      color: var(--text-sub);
      font-size: 14px;
      display: inline-block;
      padding: 3px 0;
      border-bottom: 1px solid transparent;
      transition: color .2s, border-color .2s;
    }

    .footer-links li a:hover {
      color: var(--accent);
      border-bottom-color: var(--accent);
    }

    .footer-note {
      color: var(--text-weak);
      font-size: 13px;
      line-height: 1.75;
    }

    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      margin-top: 30px;
      padding-top: 15px;
      display: flex;
      flex-wrap: wrap;
      justify-content: space-between;
      gap: 8px;
      color: var(--text-weak);
      font-size: 13px;
    }

    @media (max-width: 1200px) {
      .main-wrap {
        max-width: 100%;
      }

      .topic-layout-first {
        grid-template-columns: 1fr;
      }

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

      .topic-stack .topic-card {
        min-height: 100%;
        display: block;
      }

      .topic-stack .topic-media {
        height: 130px;
        position: static;
        width: 100%;
      }

      .topic-stack .topic-media img {
        position: static;
        width: 100%;
        height: 100%;
        min-height: 130px;
      }

      .topic-stack .topic-body {
        padding: 14px 18px 16px;
      }

      .topic-stack .topic-body p {
        margin-bottom: 8px;
      }

      .topic-stack .topic-index {
        display: block;
      }

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

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

      .diagnose-media {
        max-width: 560px;
      }

      .trust-panel {
        grid-template-columns: 1fr;
        gap: 28px;
        padding: 28px 24px;
      }

      .footer-grid {
        grid-template-columns: 1.3fr 1fr 1fr;
      }

      .footer-col:last-child {
        grid-column: 1 / -1;
      }
    }

    @media (max-width: 900px) {
      .app-sidebar {
        transform: translateX(-280px);
        box-shadow: 0 0 70px rgba(0, 0, 0, 0.4);
      }

      .app-sidebar.is-open {
        transform: translateX(0);
      }

      .sidebar-overlay.is-visible {
        display: block;
      }

      .main-wrap {
        margin-left: 0;
        padding-left: 22px;
        padding-right: 22px;
      }

      .topbar {
        display: flex;
        align-items: center;
        position: sticky;
        top: 0;
        height: 64px;
        gap: 12px;
        z-index: 85;
        background: rgba(11, 30, 42, 0.86);
        backdrop-filter: blur(14px);
        -webkit-backdrop-filter: blur(14px);
        border-bottom: 1px solid rgba(255, 255, 255, 0.09);
        padding: 0 18px;
        margin: 0 -22px 14px;
      }

      .topbar-burger {
        background: transparent;
        border: 0;
        color: #fff;
        font-size: 20px;
        width: 42px;
        height: 42px;
        display: inline-flex;
        align-items: center;
        justify-content: center;
        border-radius: 12px;
        cursor: pointer;
      }

      .topbar-burger:hover {
        background: rgba(255, 255, 255, 0.08);
      }

      .topbar-logo {
        font-size: 18px;
        color: #fff;
        font-weight: 700;
        display: inline-flex;
        align-items: center;
        gap: 10px;
      }

      .topbar-logo i {
        color: var(--accent);
      }

      .topbar-slug {
        margin-left: auto;
        color: var(--text-sub);
        font-size: 14px;
        background: rgba(255, 255, 255, 0.06);
        border-radius: 30px;
        padding: 4px 12px;
      }

      .category-hero {
        min-height: auto;
        padding: 40px 0 20px;
      }

      .category-hero .hero-grid {
        grid-template-columns: 1fr;
        gap: 36px;
      }

      .topic-card-lower {
        grid-template-columns: 1fr;
      }

      .topic-card-lower .topic-media {
        height: 180px;
      }
    }

    @media (max-width: 640px) {
      .main-wrap {
        padding-left: 15px;
        padding-right: 15px;
      }

      .topbar {
        margin: 0 -15px 12px;
        padding: 0 12px;
      }

      .topbar-logo span {
        max-width: 150px;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
      }

      .category-hero {
        padding-top: 26px;
      }

      .category-hero h1 {
        font-size: 34px;
      }

      .category-hero h1::after {
        margin-top: 10px;
      }

      .category-lead {
        font-size: 16px;
        margin-bottom: 22px;
      }

      .hero-actions {
        flex-direction: column;
        align-items: stretch;
      }

      .hero-actions .btn-main,
      .hero-actions .btn-ghost {
        width: 100%;
      }

      .hero-figure img {
        height: 230px;
        object-fit: cover;
      }

      .figure-float {
        display: none;
      }

      .block-section {
        padding: 52px 0 10px;
      }

      .section-head h2 {
        font-size: 23px;
      }

      .topic-stack {
        display: block;
      }

      .topic-stack .topic-card + .topic-card {
        margin-top: 18px;
      }

      .topic-stack .topic-media {
        height: 160px;
      }

      .topic-body {
        flex-direction: column;
        gap: 10px;
        padding: 16px 18px;
      }

      .topic-body {
        padding: 18px;
      }

      .topic-card-feature .topic-media {
        height: 180px;
      }

      .topic-card-lower .topic-body {
        padding: 20px 18px;
      }

      .steps-section,
      .diagnose-section,
      .trust-section,
      .faq-section,
      .cta-subscribe {
        padding-top: 60px;
      }

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

      .diagnose-media::before {
        padding-bottom: 70%;
      }

      .trust-panel {
        padding: 20px 18px;
      }

      .trust-metrics {
        grid-template-columns: repeat(3, 1fr);
      }

      .metric-item strong {
        font-size: 24px;
      }

      .metric-item span {
        font-size: 12px;
      }

      .subscribe-card {
        padding: 28px 22px;
      }

      .subscribe-card h2 {
        font-size: 23px;
      }

      .subscribe-form input[type="email"],
      .subscribe-form .btn-main {
        width: 100%;
        flex: none;
        justify-content: center;
      }

      .subscribe-extra-links {
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
      }

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

      .site-footer {
        padding: 28px 20px 16px;
        margin-top: 52px;
      }

      .footer-bottom {
        flex-direction: column;
      }
    }

/* roulang page: article */
:root {
  --font-body: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, -apple-system, sans-serif;
  --bg-base: #0B1E2A;
  --bg-deep: #071A26;
  --bg-card: rgba(255, 255, 255, 0.055);
  --bg-card-strong: rgba(255, 255, 255, 0.08);
  --bg-glass: rgba(255, 255, 255, 0.06);
  --sidebar-bg: rgba(10, 28, 40, 0.82);
  --accent: #2DE1C2;
  --accent-deep: #19C0AE;
  --accent-rgb: 45, 225, 194;
  --gold: #D5A86A;
  --text-main: rgba(255, 255, 255, 0.92);
  --text-mid: rgba(255, 255, 255, 0.68);
  --text-dim: rgba(255, 255, 255, 0.46);
  --border: rgba(255, 255, 255, 0.14);
  --border-soft: rgba(255, 255, 255, 0.08);
  --radius-lg: 22px;
  --radius-md: 15px;
  --radius-sm: 10px;
  --shadow-lg: 0 24px 70px rgba(0, 0, 0, 0.22);
  --shadow-md: 0 14px 40px rgba(0, 0, 0, 0.18);
  --ease: 180ms cubic-bezier(0.22, 1, 0.36, 1);
}
*, *::before, *::after {
  box-sizing: border-box;
}
html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}
body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.75;
  color: var(--text-main);
  background:
    radial-gradient(circle at 8% -10%, rgba(var(--accent-rgb), 0.12), transparent 38vw),
    radial-gradient(circle at 92% 12%, rgba(40, 120, 160, 0.2), transparent 42vw),
    var(--bg-deep);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}
img {
  max-width: 100%;
  display: block;
}
a {
  color: inherit;
  text-decoration: none;
  transition: color 180ms ease, border-color 180ms ease, background 180ms ease, opacity 180ms ease, transform 180ms ease;
}
button {
  font-family: inherit;
  border: 0;
  cursor: pointer;
}
input, select, textarea {
  font-family: inherit;
}
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 4px;
}
.skip-link {
  position: fixed;
  left: 12px;
  top: -80px;
  z-index: 2000;
  background: var(--accent);
  color: #062833;
  font-weight: 700;
  padding: 10px 18px;
  border-radius: 10px;
  transition: top 180ms ease;
}
.skip-link:focus {
  top: 12px;
}
.site-sidebar {
  position: fixed;
  top: 0;
  left: 0;
  width: 260px;
  height: 100vh;
  z-index: 1060;
  display: flex;
  flex-direction: column;
  background: var(--sidebar-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-right: 1px solid var(--border-soft);
  overflow-y: auto;
  transition: transform 260ms cubic-bezier(0.22, 1, 0.36, 1), box-shadow 260ms ease, visibility 260ms ease;
}
.sidebar-brand {
  padding: 26px 20px 18px;
  border-bottom: 1px solid var(--border-soft);
}
.brand-logo {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: #fff;
  font-weight: 700;
  font-size: 18px;
  line-height: 1.2;
}
.brand-mark {
  width: 40px;
  height: 40px;
  flex: 0 0 40px;
  border-radius: 13px;
  background: linear-gradient(140deg, var(--accent), #2b8f9c);
  color: #06212c;
  font-weight: 800;
  font-size: 16px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  letter-spacing: 0.02em;
  box-shadow: 0 10px 26px rgba(var(--accent-rgb), 0.25), inset 0 1px 0 rgba(255, 255, 255, 0.24);
}
.sidebar-brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.28;
  color: rgba(255, 255, 255, 0.92);
}
.sidebar-brand-text strong {
  font-size: 18px;
  font-weight: 700;
}
.sidebar-brand-text small {
  color: var(--text-dim);
  font-size: 11px;
  letter-spacing: 0.06em;
  font-weight: 400;
}
.side-nav {
  display: flex;
  flex-direction: column;
  padding: 16px 0;
  flex: 1;
}
.nav-item {
  display: flex;
  align-items: center;
  gap: 13px;
  margin: 4px 14px;
  padding: 11px 14px;
  color: rgba(255, 255, 255, 0.64);
  border-left: 3px solid transparent;
  border-radius: 12px;
  font-size: 15px;
  font-weight: 500;
  transition: background var(--ease), color var(--ease), border-color var(--ease), transform 160ms ease;
}
.nav-item:hover {
  background: rgba(255, 255, 255, 0.06);
  color: rgba(255, 255, 255, 0.94);
  transform: translateX(2px);
}
.nav-item.active {
  background: linear-gradient(120deg, rgba(var(--accent-rgb), 0.12), rgba(var(--accent-rgb), 0.03));
  color: var(--accent);
  border-left-color: var(--accent);
  font-weight: 600;
}
.nav-item.active .nav-icon {
  color: var(--accent);
}
.nav-icon {
  width: 20px;
  text-align: center;
  color: rgba(255, 255, 255, 0.5);
  font-size: 15px;
}
.sidebar-state {
  padding: 16px 18px 22px;
  border-top: 1px solid var(--border-soft);
  color: var(--text-dim);
  font-size: 12px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.status-dot {
  width: 8px;
  height: 8px;
  background: var(--accent);
  border-radius: 50%;
  box-shadow: 0 0 0 4px rgba(var(--accent-rgb), 0.14);
}
.sidebar-mask {
  display: none;
}
.site-main {
  margin-left: 260px;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}
.topbar {
  display: none;
  position: sticky;
  top: 0;
  z-index: 1050;
  min-height: 62px;
  background: rgba(7, 18, 26, 0.78);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-soft);
}
.topbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 62px;
}
.icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border-soft);
  color: var(--text-main);
  border-radius: 12px;
  font-size: 17px;
  transition: background var(--ease), border-color var(--ease), transform 160ms ease;
}
.icon-btn:hover {
  background: rgba(255, 255, 255, 0.11);
  border-color: rgba(var(--accent-rgb), 0.5);
  color: var(--accent);
}
.topbar .brand-logo {
  font-size: 16px;
  padding: 0 6px;
}
.topbar .brand-mark {
  width: 34px;
  height: 34px;
  flex: 0 0 34px;
  border-radius: 11px;
  font-size: 14px;
}
.container-inner {
  width: 100%;
  max-width: 1260px;
  margin-inline: auto;
  padding-inline: clamp(18px, 4vw, 44px);
}
.main-content {
  flex: 1;
  width: 100%;
}
.article-hero {
  position: relative;
  background:
    linear-gradient(100deg, rgba(7, 18, 27, 0.94) 18%, rgba(7, 18, 27, 0.72) 52%, rgba(7, 18, 27, 0.32) 92%),
    url('/assets/images/backpic/back-2.png') center / cover no-repeat;
  border-bottom: 1px solid var(--border-soft);
}
.article-hero::after {
  content: '';
  position: absolute;
  inset: auto 0 0 auto;
  width: 38%;
  height: 2px;
  background: linear-gradient(90deg, transparent, rgba(var(--accent-rgb), 0.7));
  pointer-events: none;
}
.article-reader {
  max-width: 820px;
  margin-inline: auto;
  padding: clamp(50px, 8vw, 92px) clamp(18px, 4vw, 40px) clamp(30px, 5vw, 54px);
}
.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px;
  font-size: 13px;
  color: var(--text-dim);
  margin-bottom: 22px;
}
.breadcrumb a {
  color: rgba(255, 255, 255, 0.56);
  transition: color 160ms ease;
}
.breadcrumb a:hover {
  color: var(--accent);
}
.crumb-sep {
  color: rgba(255, 255, 255, 0.22);
}
.crumb-last {
  max-width: 420px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  color: rgba(255, 255, 255, 0.46);
}
.article-title {
  font-size: clamp(30px, 4.6vw, 46px);
  line-height: 1.2;
  letter-spacing: -0.01em;
  font-weight: 800;
  margin: 0 0 20px;
  color: #fff;
  text-wrap: balance;
}
.article-title::after {
  content: '';
  display: block;
  width: 52px;
  height: 3px;
  margin-top: 22px;
  border-radius: 4px;
  background: linear-gradient(90deg, var(--gold), rgba(213, 168, 106, 0.1));
}
.article-meta-line {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 14px;
  color: var(--text-mid);
  font-size: 13px;
}
.badge {
  display: inline-flex;
  align-items: center;
  height: 26px;
  padding: 0 12px;
  border-radius: 999px;
  background: rgba(230, 247, 253, 0.14);
  color: #EAF3F8;
  font-size: 12px;
  font-weight: 600;
  border: 1px solid rgba(255, 255, 255, 0.14);
  letter-spacing: 0.02em;
}
.meta-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.meta-item i {
  color: var(--text-dim);
  font-size: 13px;
}
.article-body-section {
  padding: clamp(42px, 6vw, 68px) 0 clamp(18px, 3vw, 40px);
}
.article-body-inner {
  max-width: 780px;
  margin-inline: auto;
  padding-inline: clamp(18px, 4vw, 40px);
}
.prose {
  color: rgba(255, 255, 255, 0.86);
  font-size: 16px;
  line-height: 1.88;
}
.prose h2 {
  font-size: clamp(23px, 2.6vw, 32px);
  line-height: 1.32;
  font-weight: 750;
  color: #fff;
  margin: 2.4em 0 0.9em;
  padding-top: 0.7em;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}
.prose h2::after {
  content: '';
  display: block;
  width: 48px;
  height: 3px;
  margin-top: 16px;
  border-radius: 4px;
  background: linear-gradient(90deg, var(--gold), rgba(213, 168, 106, 0.2));
}
.prose h3 {
  font-size: 21px;
  line-height: 1.42;
  font-weight: 700;
  color: rgba(255, 255, 255, 0.97);
  margin: 1.8em 0 0.6em;
}
.prose p {
  margin: 0 0 1.35em;
}
.prose a {
  color: var(--accent);
  border-bottom: 1px solid rgba(var(--accent-rgb), 0.35);
}
.prose a:hover {
  border-bottom-color: var(--accent);
}
.prose ul,
.prose ol {
  margin: 0 0 1.5em;
  padding-left: 1.15em;
}
.prose li {
  padding-left: 0.3em;
  margin-bottom: 0.35em;
}
.prose li::marker {
  color: var(--accent);
}
.prose blockquote {
  margin: 1.6em 0;
  padding: 18px 24px;
  border-left: 3px solid var(--accent);
  background: linear-gradient(90deg, rgba(var(--accent-rgb), 0.08), rgba(255, 255, 255, 0.02));
  border-radius: 0 16px 16px 0;
  color: rgba(255, 255, 255, 0.78);
}
.prose img {
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  margin: 24px 0;
}
.prose table {
  width: 100%;
  border-collapse: collapse;
  margin: 26px 0;
  font-size: 15px;
  border-radius: var(--radius-md);
  overflow: hidden;
}
.prose table th,
.prose table td {
  border: 1px solid var(--border-soft);
  padding: 12px 14px;
  text-align: left;
  background: rgba(255, 255, 255, 0.025);
}
.prose table th {
  background: rgba(var(--accent-rgb), 0.1);
  color: #fff;
  font-weight: 700;
  white-space: nowrap;
}
.prose code {
  background: rgba(var(--accent-rgb), 0.1);
  color: #cdf8ec;
  border-radius: 6px;
  padding: 2px 7px;
  font-size: 0.92em;
}
.prose pre {
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid var(--border-soft);
  padding: 18px 20px;
  border-radius: var(--radius-md);
  overflow-x: auto;
  font-size: 14px;
  line-height: 1.7;
}
.article-empty {
  max-width: 620px;
  margin: 48px auto;
  padding: 56px 28px;
  text-align: center;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-lg);
}
.article-empty i {
  font-size: 34px;
  color: var(--text-dim);
  margin-bottom: 18px;
}
.article-empty p {
  color: var(--text-mid);
  font-size: 16px;
  margin-bottom: 24px;
}
.article-footer-links {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  padding-top: 32px;
  margin-top: 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.09);
}
.text-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: rgba(255, 255, 255, 0.58);
  font-size: 14px;
  font-weight: 500;
}
.text-link:hover {
  color: var(--accent);
}
.section-block {
  padding: clamp(52px, 7vw, 88px) 0;
}
.section-title-wrap {
  max-width: 820px;
  margin: 0 auto clamp(30px, 4vw, 46px);
  text-align: center;
}
.section-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 14px;
}
.section-title-wrap h2 {
  font-size: clamp(26px, 3.4vw, 38px);
  line-height: 1.28;
  margin: 0;
  color: #fff;
}
.section-title-wrap .section-desc {
  color: var(--text-mid);
  margin: 16px 0 0;
  font-size: 16px;
}
.related-wrap {
  max-width: 850px;
  margin-inline: auto;
  padding-inline: clamp(18px, 4vw, 40px);
}
.related-list {
  display: grid;
  gap: 16px;
}
.related-item {
  display: flex;
  align-items: center;
  gap: 18px;
  background: var(--bg-card);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-md);
  padding: 16px;
  transition: background var(--ease), border-color var(--ease), transform var(--ease), box-shadow var(--ease);
}
.related-item:hover {
  background: var(--bg-card-strong);
  border-color: rgba(var(--accent-rgb), 0.45);
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}
.related-cover {
  width: 168px;
  height: 108px;
  flex: 0 0 168px;
  border-radius: 12px;
  overflow: hidden;
  background: rgba(255, 255, 255, 0.07);
}
.related-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.related-info {
  min-width: 0;
  flex: 1;
}
.related-info h3 {
  margin: 0 0 7px;
  font-size: 18px;
  line-height: 1.4;
  color: #fff;
  font-weight: 650;
}
.related-info p {
  color: var(--text-mid);
  font-size: 14px;
  line-height: 1.65;
  margin: 0 0 10px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.related-meta {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  color: var(--text-dim);
  font-size: 12px;
}
.related-meta .badge {
  height: 22px;
  padding: 0 9px;
  font-size: 11px;
}
.faq-section {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.015), rgba(255, 255, 255, 0.04));
  border-top: 1px solid var(--border-soft);
  border-bottom: 1px solid var(--border-soft);
}
.faq-wrap {
  max-width: 760px;
  margin-inline: auto;
  padding-inline: clamp(18px, 4vw, 40px);
}
.faq-list .accordion {
  list-style: none;
  margin: 0;
  background: transparent;
}
.faq-list .accordion-item {
  background: rgba(255, 255, 255, 0.045);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-md);
  margin-bottom: 14px;
  overflow: hidden;
  transition: border-color var(--ease), background var(--ease);
}
.faq-list .accordion-item:hover {
  border-color: rgba(var(--accent-rgb), 0.4);
}
.faq-list .accordion-item.is-active {
  border-color: rgba(var(--accent-rgb), 0.48);
  background: rgba(255, 255, 255, 0.06);
}
.faq-list .accordion-title {
  position: relative;
  display: block;
  padding: 18px 52px 18px 20px;
  color: rgba(255, 255, 255, 0.92);
  font-size: 16px;
  font-weight: 650;
  background: transparent;
  border: 0;
  border-radius: var(--radius-md);
  line-height: 1.5;
}
.faq-list .accordion-title:hover,
.faq-list .accordion-title:focus {
  background: transparent;
  color: var(--accent);
}
.faq-list .accordion-title::before {
  content: '+';
  position: absolute;
  right: 18px;
  top: 50%;
  transform: translateY(-50%);
  width: 26px;
  height: 26px;
  border-radius: 50%;
  color: var(--accent);
  background: rgba(var(--accent-rgb), 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  font-weight: 400;
  line-height: 1;
}
.faq-list .accordion-item.is-active .accordion-title::before {
  content: '−';
}
.faq-list .accordion-title::after {
  content: none;
}
.faq-list .accordion-content {
  padding: 0 20px 20px;
  background: transparent;
  color: var(--text-mid);
  font-size: 15px;
  line-height: 1.8;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: 16px;
}
.faq-list .accordion-content p {
  margin: 0;
}
.cta-section {
  padding: clamp(56px, 8vw, 96px) 0;
}
.cta-card {
  position: relative;
  max-width: 920px;
  margin-inline: auto;
  padding: clamp(34px, 5vw, 64px);
  border-radius: 26px;
  background:
    linear-gradient(110deg, rgba(8, 24, 35, 0.92), rgba(9, 31, 42, 0.72)),
    url('/assets/images/backpic/back-3.png') center / cover no-repeat;
  border: 1px solid rgba(255, 255, 255, 0.16);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  text-align: center;
}
.cta-card::before {
  content: '';
  pointer-events: none;
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 50% 0%, rgba(var(--accent-rgb), 0.12), transparent 45%);
}
.cta-card h2 {
  position: relative;
  font-size: clamp(25px, 3.6vw, 36px);
  color: #fff;
  line-height: 1.3;
  margin: 0 0 14px;
}
.cta-card .cta-desc {
  position: relative;
  color: var(--text-mid);
  max-width: 520px;
  margin: 0 auto 30px;
  font-size: 15px;
}
.subscribe-form {
  position: relative;
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  justify-content: center;
  max-width: 530px;
  margin: 0 auto 26px;
}
.subscribe-form input[type="email"] {
  flex: 1 1 250px;
  height: 48px;
  padding: 0 18px;
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 12px;
  color: #fff;
  font-size: 15px;
  transition: border-color var(--ease), background var(--ease), box-shadow var(--ease);
}
.subscribe-form input[type="email"]::placeholder {
  color: rgba(255, 255, 255, 0.45);
}
.subscribe-form input[type="email"]:focus {
  outline: 0;
  border-color: var(--accent);
  box-shadow: 0 0 0 4px rgba(var(--accent-rgb), 0.13);
  background: rgba(255, 255, 255, 0.1);
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  height: 48px;
  padding: 0 24px;
  border-radius: 12px;
  font-weight: 800;
  font-size: 14px;
  white-space: nowrap;
  transition: transform var(--ease), box-shadow var(--ease), background var(--ease), border-color var(--ease), color var(--ease);
  border: 1px solid transparent;
}
.btn-primary {
  background: linear-gradient(125deg, var(--accent), var(--accent-deep));
  color: #06212c;
  box-shadow: 0 14px 34px rgba(var(--accent-rgb), 0.22);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 18px 40px rgba(var(--accent-rgb), 0.32);
}
.btn-primary:active {
  transform: translateY(0);
}
.btn-secondary {
  background: rgba(255, 255, 255, 0.05);
  border-color: rgba(255, 255, 255, 0.18);
  color: rgba(255, 255, 255, 0.84);
  backdrop-filter: blur(8px);
}
.btn-secondary:hover {
  border-color: rgba(var(--accent-rgb), 0.55);
  color: var(--accent);
  background: rgba(var(--accent-rgb), 0.07);
  transform: translateY(-2px);
}
.btn-secondary:active {
  transform: translateY(0);
}
.cta-actions {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  justify-content: center;
}
.site-footer {
  background: rgba(5, 15, 22, 0.88);
  border-top: 1px solid var(--border-soft);
  padding: clamp(46px, 7vw, 76px) 0 30px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.8fr 1fr 1fr 1.5fr;
  gap: 38px;
  padding-bottom: 42px;
}
.footer-brand {
  display: inline-flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 14px;
}
.footer-brand-name {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-weight: 800;
  font-size: 19px;
  color: #fff;
}
.footer-desc {
  color: var(--text-dim);
  font-size: 14px;
  line-height: 1.8;
  margin: 4px 0 0;
  max-width: 320px;
}
.footer-col h4 {
  color: rgba(255, 255, 255, 0.92);
  font-size: 15px;
  font-weight: 700;
  margin: 0 0 16px;
}
.footer-links {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}
.footer-links a {
  color: var(--text-mid);
  font-size: 14px;
}
.footer-links a:hover {
  color: var(--accent);
}
.footer-note {
  color: var(--text-dim);
  font-size: 13px;
  line-height: 1.8;
  margin: 0;
}
.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  padding-top: 24px;
  border-top: 1px solid var(--border-soft);
  color: rgba(255, 255, 255, 0.36);
  font-size: 12px;
  letter-spacing: 0.02em;
}
@media (max-width: 900px) {
  .site-sidebar {
    transform: translateX(-100%);
    visibility: hidden;
    box-shadow: none;
    width: 278px;
  }
  .site-sidebar.open {
    transform: translateX(0);
    visibility: visible;
    box-shadow: 22px 0 60px rgba(0, 0, 0, 0.3);
  }
  .sidebar-mask {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(4, 12, 18, 0.68);
    z-index: 1055;
    backdrop-filter: blur(2px);
    -webkit-backdrop-filter: blur(2px);
  }
  .sidebar-mask.show {
    display: block;
  }
  .site-main {
    margin-left: 0;
  }
  .topbar {
    display: block;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 30px;
  }
}
@media (max-width: 640px) {
  body {
    font-size: 15px;
  }
  .article-reader {
    padding-top: 42px;
  }
  .article-title {
    font-size: clamp(26px, 8vw, 34px);
  }
  .related-item {
    flex-direction: column;
    align-items: flex-start;
    padding: 0;
    background: var(--bg-glass);
  }
  .related-cover {
    width: 100%;
    height: auto;
    aspect-ratio: 16 / 9;
    flex-basis: auto;
    border-radius: 15px 15px 0 0;
  }
  .related-info {
    padding: 0 16px 18px;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 26px;
  }
  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
  }
  .subscribe-form {
    flex-direction: column;
  }
  .subscribe-form input[type="email"] {
    width: 100%;
  }
  .submit-btn {
    width: 100%;
  }
  .cta-card {
    padding: 34px 22px;
  }
}

/* roulang page: category3 */
:root {
  --bg: #0B1E2A;
  --bg-deep: #081722;
  --bg-soft: #102B3A;
  --panel: rgba(255, 255, 255, 0.06);
  --glass: rgba(255, 255, 255, 0.09);
  --glass-strong: rgba(255, 255, 255, 0.12);
  --line: rgba(255, 255, 255, 0.14);
  --line-bright: rgba(45, 225, 194, 0.55);
  --text: rgba(255, 255, 255, 0.92);
  --muted: rgba(255, 255, 255, 0.68);
  --faint: rgba(255, 255, 255, 0.46);
  --accent: #2DE1C2;
  --accent-deep: #20BBA4;
  --gold: #D5A86A;
  --danger: #F08A7B;
  --radius-lg: 22px;
  --radius-md: 15px;
  --radius-sm: 10px;
  --shadow: 0 24px 65px rgba(0, 0, 0, 0.22);
  --shadow-soft: 0 14px 38px rgba(0, 0, 0, 0.16);
  --font-main: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, sans-serif;
  --font-number: "DIN Alternate", "Helvetica Neue", Arial, sans-serif;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 76px; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-main);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul, ol { margin: 0; padding: 0; }
p { margin: 0 0 1em; }
h1, h2, h3, h4 { line-height: 1.35; margin: 0 0 0.6em; }
a:focus-visible, button:focus-visible, summary:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 3px;
  border-radius: 6px;
}
.container-inner {
  width: 100%;
  max-width: 1220px;
  margin: 0 auto;
  padding: 0 34px;
}
.app-shell { min-height: 100vh; }

/* 左侧导航 */
.side-shell {
  position: fixed;
  left: 0;
  top: 0;
  bottom: 0;
  z-index: 80;
  width: 260px;
  display: flex;
  flex-direction: column;
  padding: 28px 16px 18px;
  background: rgba(8, 23, 34, 0.92);
  border-right: 1px solid var(--line);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  transition: transform 0.3s ease;
}
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 0 10px 20px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}
.brand-logo {
  width: 40px;
  height: 40px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 13px;
  color: #05291f;
  background: linear-gradient(135deg, var(--accent), var(--accent-deep));
  font-size: 20px;
  box-shadow: 0 0 0 4px rgba(45, 225, 194, 0.15), 0 10px 24px rgba(45, 225, 194, 0.18);
  flex: 0 0 auto;
}
.brand-name {
  font-size: 20px;
  font-weight: 700;
  white-space: nowrap;
  letter-spacing: 0.02em;
}
.brand-name small {
  display: block;
  font-size: 12px;
  color: var(--faint);
  font-weight: 400;
  margin-top: 2px;
}
.side-nav {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-top: 24px;
  flex: 1;
}
.nav-item {
  display: flex;
  align-items: center;
  gap: 13px;
  min-height: 48px;
  padding: 0 14px;
  border-radius: 12px;
  border-left: 3px solid transparent;
  color: var(--muted);
  font-size: 15px;
  font-weight: 500;
  transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}
.nav-item:hover {
  background: rgba(255, 255, 255, 0.06);
  color: var(--accent);
}
.nav-item.active {
  background: rgba(45, 225, 194, 0.12);
  color: var(--text);
  border-left-color: var(--accent);
}
.nav-icon { width: 22px; text-align: center; font-size: 16px; }
.side-safe {
  margin-top: 10px;
  padding: 12px 12px;
  border: 1px dashed rgba(255, 255, 255, 0.16);
  border-radius: 13px;
  background: rgba(255, 255, 255, 0.04);
  color: var(--faint);
  font-size: 13px;
  line-height: 1.7;
}
.side-safe i { color: var(--gold); margin-right: 4px; }

/* 移动顶部栏 */
.top-mobile {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 70;
  height: 62px;
  align-items: center;
  gap: 14px;
  padding: 0 18px;
  background: rgba(11, 30, 42, 0.92);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}
.menu-btn {
  width: 42px;
  height: 42px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid var(--line);
  border-radius: 11px;
  color: var(--text);
  font-size: 18px;
  cursor: pointer;
  transition: background 0.2s, border-color 0.2s;
}
.menu-btn:hover { background: rgba(255, 255, 255, 0.14); }
.mobile-brand {
  display: flex;
  align-items: center;
  gap: 9px;
  font-weight: 700;
  font-size: 18px;
  line-height: 1.2;
}
.mobile-brand .brand-logo { width: 34px; height: 34px; border-radius: 10px; font-size: 16px; }
.nav-scrim {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 75;
  background: rgba(0, 0, 0, 0.45);
  backdrop-filter: blur(2px);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease;
}
.nav-scrim.is-visible { opacity: 1; pointer-events: auto; }

/* 主区域 */
.main-shell {
  margin-left: 260px;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
}
.main-shell::before {
  content: "";
  position: fixed;
  top: -220px;
  right: -180px;
  width: 520px;
  height: 520px;
  background: radial-gradient(circle, rgba(45, 225, 194, 0.13), transparent 68%);
  pointer-events: none;
  z-index: 0;
}
.main-content { position: relative; z-index: 1; flex: 1; }

/* 面包屑 */
.breadcrumb {
  position: relative;
  z-index: 2;
  padding: 22px 34px 0;
  max-width: 1220px;
  margin: 0 auto;
  width: 100%;
  font-size: 13px;
  color: var(--faint);
}
.breadcrumb a { color: var(--muted); transition: color 0.2s; }
.breadcrumb a:hover { color: var(--accent); }
.breadcrumb .sep { margin: 0 10px; opacity: 0.5; }
.breadcrumb .current { color: var(--text); }

/* Hero */
.category-hero {
  position: relative;
  background-image: url('/assets/images/backpic/back-2.png');
  background-size: cover;
  background-position: center;
  min-height: 46vh;
  display: flex;
  align-items: center;
  padding: 72px 0 80px;
  margin-bottom: 18px;
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(8, 23, 34, 0.96) 0%, rgba(11, 30, 42, 0.84) 52%, rgba(11, 30, 42, 0.45) 100%);
}
.hero-inner {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  align-items: center;
  gap: 54px;
}
.hero-pretitle {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 20px;
  color: var(--accent);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.06em;
}
.hero-pretitle::before {
  content: "";
  width: 34px;
  height: 2px;
  background: var(--gold);
  border-radius: 2px;
}
.category-hero h1 {
  font-size: clamp(38px, 5vw, 64px);
  font-weight: 800;
  color: #fff;
  letter-spacing: 0.02em;
  line-height: 1.18;
  margin-bottom: 18px;
}
.hero-lead {
  max-width: 620px;
  color: var(--muted);
  font-size: 17px;
  line-height: 1.9;
  margin-bottom: 30px;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; }
.hero-visual-frame {
  width: 100%;
  border-radius: 26px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.12);
  box-shadow: var(--shadow);
  transform: rotate(0.4deg);
}
.hero-visual-frame img {
  aspect-ratio: 5 / 3.4;
  width: 100%;
  object-fit: cover;
}

/* 通用 section */
.section { padding: 94px 0; position: relative; }
.section.soft { background: rgba(255, 255, 255, 0.025); border-top: 1px solid rgba(255,255,255,0.07); border-bottom: 1px solid rgba(255,255,255,0.07); }
.section-head {
  margin-bottom: 42px;
  max-width: 720px;
  position: relative;
}
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.section-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.12em;
  color: var(--gold);
  margin-bottom: 13px;
}
.section-eyebrow::after {
  content: "";
  width: 36px;
  height: 1px;
  background: var(--gold);
  opacity: 0.6;
}
.section-head.center .section-eyebrow::after { background: var(--accent); }
.section-title { font-size: clamp(28px, 3vw, 40px); font-weight: 800; color: #fff; letter-spacing: 0.01em; }
.section-sub { color: var(--muted); font-size: 16px; margin-top: 14px; }

/* 关键信息速览 */
.keyline-section { padding: 44px 0 26px; }
.keyline-header {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 30px;
  color: var(--muted);
  font-size: 14px;
  letter-spacing: 0.05em;
}
.keyline-header .keyline-mark {
  display: inline-block;
  width: 48px;
  height: 3px;
  border-radius: 3px;
  background: linear-gradient(90deg, var(--accent), var(--gold));
}
.key-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}
.key-card {
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 24px 26px;
  border-radius: 18px;
  border: 1px solid var(--line);
  background: rgba(255,255,255,0.055);
  backdrop-filter: blur(10px);
  box-shadow: var(--shadow-soft);
  transition: border-color .2s, transform .2s;
}
.key-card:hover { border-color: rgba(45,225,194,0.45); transform: translateY(-3px); }
.key-num {
  font-family: var(--font-number);
  font-size: 38px;
  font-weight: 800;
  color: var(--accent);
  line-height: 1;
  min-width: 86px;
}
.key-info { flex: 1; }
.key-info strong { display: block; font-size: 17px; color: #fff; margin-bottom: 2px; }
.key-info span { font-size: 13px; color: var(--faint); }

/* 风险防护卡 */
.risk-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.risk-card {
  position: relative;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--glass);
  padding: 32px 27px 25px;
  backdrop-filter: blur(15px);
  -webkit-backdrop-filter: blur(15px);
  box-shadow: var(--shadow-soft);
  overflow: hidden;
  transition: transform 0.24s ease, border-color 0.2s ease, box-shadow 0.24s ease;
}
.risk-card::after {
  content: "";
  position: absolute;
  top: 0;
  left: 18px;
  right: 18px;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.6), transparent);
  opacity: 0.5;
}
.risk-card:hover { transform: translateY(-5px); border-color: var(--line-bright); box-shadow: var(--shadow); }
.card-icon {
  width: 50px;
  height: 50px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 15px;
  background: rgba(45,225,194,0.14);
  border: 1px solid rgba(45,225,194,0.22);
  color: var(--accent);
  font-size: 22px;
  margin-bottom: 21px;
}
.risk-card h3 { font-size: 21px; color: #fff; font-weight: 700; margin-bottom: 12px; }
.risk-card p { font-size: 15px; color: var(--muted); margin-bottom: 17px; }
.card-tag {
  display: inline-flex;
  align-items: center;
  padding: 5px 12px;
  border-radius: 999px;
  background: rgba(255,255,255,0.08);
  color: var(--text);
  font-size: 12px;
}

/* 图文自查流程 */
.split-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 60px;
  align-items: center;
}
.split-media {
  border-radius: 24px;
  overflow: hidden;
  border: 1px solid rgba(255,255,255,0.12);
  box-shadow: var(--shadow);
}
.split-media img { width: 100%; aspect-ratio: 1 / 0.92; object-fit: cover; }
.check-list { list-style: none; counter-reset: check-counter; }
.check-item {
  display: grid;
  grid-template-columns: 54px 1fr;
  gap: 18px;
  padding: 19px 4px 19px 0;
  border-bottom: 1px solid rgba(255,255,255,0.10);
  transition: background 0.2s ease;
}
.check-item:hover { background: rgba(255,255,255,0.025); }
.check-num {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(45,225,194,0.13);
  border-radius: 13px;
  color: var(--accent);
  font-family: var(--font-number);
  font-weight: 800;
  font-size: 16px;
}
.check-item h3 { font-size: 17px; color: #fff; font-weight: 600; margin-bottom: 5px; }
.check-item p { color: var(--muted); font-size: 15px; margin: 0; }

/* 服务保障 */
.trust-section {
  background:
    linear-gradient(120deg, rgba(11,30,42,0.96), rgba(17,42,56,0.90)),
    url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
  border-top: 1px solid rgba(255,255,255,0.08);
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.trust-wrap {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 72px;
  align-items: center;
}
.trust-list {
  display: flex;
  flex-direction: column;
  gap: 18px;
}
.trust-list li {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  list-style: none;
  padding: 20px 22px;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 16px;
}
.trust-list i {
  color: var(--accent);
  font-size: 20px;
  margin-top: 3px;
  width: 24px;
}
.trust-list strong { display: block; color: #fff; font-size: 16px; }
.trust-list span { color: var(--muted); font-size: 14px; }
.trust-media {
  border-radius: 26px;
  overflow: hidden;
  box-shadow: 0 0 0 1px rgba(255,255,255,0.12), var(--shadow);
}
.trust-media img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; }
.tag-group { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 20px; }
.mini-tag {
  display: inline-flex;
  padding: 7px 14px;
  border-radius: 999px;
  background: rgba(45,225,194,0.10);
  border: 1px solid rgba(45,225,194,0.22);
  color: var(--accent);
  font-size: 13px;
}

/* FAQ */
.faq-wrap { max-width: 880px; margin: 0 auto; }
.faq-list { display: flex; flex-direction: column; gap: 14px; }
.faq-item {
  background: rgba(255,255,255,0.045);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 0 22px;
  transition: border-color 0.2s ease, background 0.2s ease;
}
.faq-item[open] { border-color: rgba(45,225,194,0.4); background: rgba(255,255,255,0.065); }
.faq-item summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 18px;
  padding: 18px 0;
  color: var(--text);
  font-size: 16px;
  font-weight: 600;
  min-height: 58px;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary i {
  color: var(--accent);
  font-size: 17px;
  transition: transform 0.3s ease;
}
.faq-item[open] summary i { transform: rotate(45deg); }
.faq-answer { color: var(--muted); font-size: 15px; padding-bottom: 22px; }

/* CTA */
.cta-band { padding: 90px 0; }
.cta-card {
  border-radius: 28px;
  border: 1px solid rgba(255,255,255,0.15);
  background:
    linear-gradient(110deg, rgba(45,225,194,0.16), rgba(213,168,106,0.08)),
    rgba(255,255,255,0.07);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  padding: 60px 56px;
  box-shadow: var(--shadow);
  text-align: center;
  position: relative;
  overflow: hidden;
}
.cta-card::before {
  content: "";
  position: absolute;
  top: -80px;
  left: 50%;
  transform: translateX(-50%);
  width: 420px;
  height: 180px;
  background: radial-gradient(closest-side, rgba(45,225,194,0.24), transparent);
}
.cta-card h2 { color: #fff; font-size: clamp(27px, 3vw, 37px); }
.cta-card p { color: var(--muted); max-width: 660px; margin: 10px auto 30px; font-size: 16px; }
.cta-btns { display: flex; justify-content: center; flex-wrap: wrap; gap: 14px; position: relative; }

/* 按钮 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  min-height: 48px;
  padding: 0 25px;
  border-radius: 12px;
  border: 1px solid transparent;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.01em;
  cursor: pointer;
  transition: transform 0.18s ease, box-shadow 0.18s ease, background 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}
.btn-primary {
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-deep) 100%);
  color: #05241b;
  box-shadow: 0 14px 34px rgba(45,225,194,0.22);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 18px 42px rgba(45,225,194,0.32);
  color: #031c13;
}
.btn-primary:active { transform: translateY(0); }
.btn-ghost {
  background: rgba(255,255,255,0.07);
  border-color: rgba(255,255,255,0.35);
  color: var(--text);
  backdrop-filter: blur(6px);
}
.btn-ghost:hover { background: rgba(255,255,255,0.14); border-color: rgba(255,255,255,0.7); transform: translateY(-2px); }
.btn-gold {
  background: linear-gradient(135deg, var(--gold), #B9894D);
  color: #17120B;
}
.btn-gold:hover { transform: translateY(-2px); box-shadow: 0 16px 34px rgba(213,168,106,0.28); }

/* Footer */
.site-footer {
  border-top: 1px solid rgba(255,255,255,0.10);
  background: rgba(5,17,25,0.55);
  position: relative;
  z-index: 2;
  padding: 62px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 0.9fr 0.9fr 1.2fr;
  gap: 34px;
  padding-bottom: 38px;
}
.footer-brand-name {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 20px;
  font-weight: 800;
  color: #fff;
  margin-bottom: 15px;
}
.footer-brand-name .brand-mark {
  display: inline-flex;
  width: 34px;
  height: 34px;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--accent), var(--accent-deep));
  color: #05241b;
  border-radius: 10px;
  font-weight: 800;
  font-size: 13px;
}
.footer-desc { color: var(--faint); font-size: 14px; line-height: 1.9; margin-bottom: 0; max-width: 320px; }
.footer-col h4 { color: #fff; font-size: 15px; font-weight: 700; margin-bottom: 16px; }
.footer-links { list-style: none; display: flex; flex-direction: column; gap: 10px; }
.footer-links a { color: var(--muted); font-size: 14px; transition: color 0.2s, padding-left 0.2s; }
.footer-links a:hover { color: var(--accent); padding-left: 4px; }
.footer-note { color: var(--faint); font-size: 13px; line-height: 1.8; margin-bottom: 0; }
.footer-bottom {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
  padding: 20px 0;
  border-top: 1px solid rgba(255,255,255,0.08);
  color: var(--faint);
  font-size: 13px;
}

/* 响应式 */
@media (max-width: 1199px) {
  .container-inner { padding: 0 28px; }
  .risk-grid { grid-template-columns: repeat(2, 1fr); }
  .split-grid { gap: 42px; }
  .footer-grid { grid-template-columns: 1fr 0.8fr 0.8fr 1fr; }
}
@media (max-width: 899px) {
  .side-shell { display: flex; transform: translateX(-100%); }
  .side-shell.is-open { transform: translateX(0); }
  .top-mobile { display: flex; }
  .nav-scrim { display: block; }
  .main-shell { margin-left: 0; }
  .breadcrumb { padding: 78px 18px 0; }
  .category-hero { min-height: auto; padding: 62px 0 60px; }
  .hero-inner { grid-template-columns: 1fr; gap: 34px; }
  .hero-visual-frame { max-width: 620px; }
  .section { padding: 72px 0; }
  .key-grid { grid-template-columns: 1fr; max-width: 560px; }
  .split-grid { grid-template-columns: 1fr; }
  .split-media { order: 1; }
  .split-body { order: 2; }
  .trust-wrap { grid-template-columns: 1fr; gap: 44px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-brand { grid-column: span 2; }
}
@media (max-width: 639px) {
  .container-inner { padding: 0 20px; }
  .breadcrumb { padding-left: 20px; padding-right: 20px; }
  .section { padding: 58px 0; }
  .section-head { margin-bottom: 30px; }
  .section-title { font-size: 27px; }
  .category-hero h1 { font-size: 38px; }
  .hero-lead { font-size: 15px; }
  .hero-actions .btn { width: 100%; }
  .keyline-header { margin-bottom: 22px; }
  .key-card { padding: 20px; }
  .risk-grid { grid-template-columns: 1fr; }
  .risk-card { padding: 26px 20px; }
  .split-media img { aspect-ratio: 4 / 3.4; }
  .check-item { grid-template-columns: 46px 1fr; gap: 13px; }
  .check-num { width: 38px; height: 38px; font-size: 15px; }
  .cta-card { padding: 42px 20px; }
  .cta-btns .btn { width: 100%; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .footer-brand { grid-column: span 1; }
  .footer-bottom { flex-direction: column; }
  .hero-actions { flex-direction: column; }
  .faq-item summary { font-size: 15px; }
  .trust-list li { padding: 16px; }
  .trust-list strong { font-size: 15px; }
}

/* roulang page: category2 */
:root {
      --bg-deep: #0B1E2A;
      --bg-deeper: #07161F;
      --bg-panel: rgba(255, 255, 255, 0.06);
      --bg-glass: rgba(255, 255, 255, 0.09);
      --bg-accent-soft: rgba(45, 225, 194, 0.10);
      --accent: #2DE1C2;
      --accent-rgb: 45, 225, 194;
      --gold: #D5A86A;
      --text-main: rgba(255, 255, 255, 0.92);
      --text-sub: rgba(255, 255, 255, 0.67);
      --text-weak: rgba(255, 255, 255, 0.46);
      --border: rgba(255, 255, 255, 0.14);
      --border-accent: rgba(45, 225, 194, 0.55);
      --badge-bg: #EAF3F8;
      --badge-text: #143C52;
      --radius-lg: 24px;
      --radius-md: 16px;
      --radius-sm: 12px;
      --shadow: 0 20px 60px rgba(0, 0, 0, 0.22);
      --transition: 0.18s ease;
      --font-cn: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, -apple-system, sans-serif;
    }

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

    html {
      scroll-behavior: smooth;
    }

    body {
      min-width: 320px;
      font-family: var(--font-cn);
      background:
        radial-gradient(circle at 8% -10%, rgba(var(--accent-rgb), 0.10), transparent 34%),
        radial-gradient(circle at 100% 22%, rgba(45, 130, 190, 0.12), transparent 30%),
        var(--bg-deep);
      color: var(--text-main);
      line-height: 1.75;
      -webkit-font-smoothing: antialiased;
    }

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

    a {
      color: inherit;
      text-decoration: none;
      transition: color var(--transition), border-color var(--transition), background var(--transition), transform var(--transition), box-shadow var(--transition);
    }

    a:focus-visible,
    button:focus-visible,
    input:focus-visible {
      outline: 2px solid var(--accent);
      outline-offset: 3px;
    }

    button,
    input {
      font-family: inherit;
    }

    h1,
    h2,
    h3,
    h4 {
      line-height: 1.25;
      font-weight: 700;
    }

    .app-shell {
      display: flex;
      min-height: 100vh;
      align-items: flex-start;
    }

    .side-panel {
      position: fixed;
      top: 0;
      left: 0;
      bottom: 0;
      width: 264px;
      padding: 28px 22px 24px;
      background: rgba(10, 29, 40, 0.86);
      backdrop-filter: blur(14px);
      -webkit-backdrop-filter: blur(14px);
      border-right: 1px solid var(--border);
      z-index: 80;
      display: flex;
      flex-direction: column;
      transition: transform 0.26s ease;
    }

    .panel-inside {
      display: flex;
      flex-direction: column;
      height: 100%;
    }

    .panel-brand {
      padding-bottom: 28px;
      border-bottom: 1px solid var(--border);
    }

    .brand-logo {
      display: inline-flex;
      align-items: center;
      gap: 10px;
    }

    .brand-mark {
      width: 40px;
      height: 40px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      background: linear-gradient(135deg, rgba(45, 225, 194, 0.22), rgba(45, 225, 194, 0.08));
      border: 1px solid rgba(45, 225, 194, 0.36);
      border-radius: 12px;
      color: var(--accent);
      font-size: 18px;
      box-shadow: 0 0 24px rgba(45, 225, 194, 0.14);
    }

    .brand-name {
      font-size: 19px;
      font-weight: 800;
      letter-spacing: 0.03em;
      color: #fff;
    }

    .brand-name:hover {
      color: var(--accent);
    }

    .brand-note {
      display: block;
      margin-top: 10px;
      font-size: 13px;
      color: var(--text-weak);
      padding-left: 2px;
    }

    .side-nav {
      display: flex;
      flex-direction: column;
      gap: 6px;
      margin-top: 26px;
      flex: 1;
    }

    .nav-item {
      display: flex;
      align-items: center;
      gap: 12px;
      padding: 12px 14px;
      border-radius: 14px;
      color: var(--text-sub);
      font-size: 15px;
      font-weight: 500;
      line-height: 1.4;
      border-left: 3px solid transparent;
      transition: all var(--transition);
    }

    .nav-item .nav-icon {
      width: 22px;
      text-align: center;
      font-size: 15px;
    }

    .nav-item:hover {
      color: var(--accent);
      background: rgba(255, 255, 255, 0.05);
      transform: translateY(-1px);
    }

    .nav-item.active {
      color: var(--accent);
      background: rgba(45, 225, 194, 0.10);
      border-left-color: var(--accent);
      box-shadow: 0 8px 28px rgba(0, 0, 0, 0.14);
    }

    .nav-item.active .nav-icon {
      color: var(--accent);
    }

    .panel-bottom {
      margin-top: 20px;
      padding: 16px 14px;
      border: 1px solid var(--border);
      border-radius: 16px;
      background: rgba(255, 255, 255, 0.04);
      font-size: 12px;
      color: var(--text-weak);
    }

    .status-line {
      display: flex;
      align-items: center;
      gap: 8px;
      color: var(--text-sub);
      font-weight: 600;
      margin-bottom: 7px;
    }

    .status-dot {
      width: 7px;
      height: 7px;
      border-radius: 50%;
      background: var(--accent);
      box-shadow: 0 0 0 4px rgba(45, 225, 194, 0.13);
    }

    .panel-bottom p {
      line-height: 1.7;
    }

    .main-wrap {
      width: calc(100% - 264px);
      margin-left: 264px;
      min-height: 100vh;
      background: rgba(4, 17, 25, 0.12);
    }

    .mobile-topbar {
      display: none;
    }

    .drawer-overlay {
      position: fixed;
      inset: 0;
      background: rgba(4, 13, 20, 0.64);
      z-index: 75;
      opacity: 0;
      pointer-events: none;
      transition: opacity 0.25s ease;
    }

    .drawer-overlay.open {
      opacity: 1;
      pointer-events: auto;
    }

    .section-container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 32px;
    }

    .page-section {
      padding: 96px 0;
    }

    .section-tint {
      background: rgba(255, 255, 255, 0.025);
      border-top: 1px solid rgba(255, 255, 255, 0.05);
      border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    }

    .section-head {
      max-width: 820px;
      margin-bottom: 50px;
    }

    .section-kicker {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      font-size: 13px;
      letter-spacing: 0.12em;
      color: var(--accent);
      font-weight: 700;
      text-transform: uppercase;
      margin-bottom: 14px;
    }

    .section-kicker::before {
      content: "";
      width: 20px;
      height: 2px;
      background: var(--gold);
      display: inline-block;
    }

    .section-title {
      font-size: 31px;
      color: #fff;
      letter-spacing: 0.01em;
      position: relative;
      padding-bottom: 14px;
    }

    .section-title::after {
      content: "";
      display: block;
      width: 48px;
      height: 3px;
      background: var(--gold);
      margin-top: 16px;
      border-radius: 4px;
    }

    .section-lead {
      margin-top: 18px;
      color: var(--text-sub);
      font-size: 16px;
      max-width: 720px;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      min-height: 48px;
      padding: 0 28px;
      border-radius: 12px;
      border: 1px solid transparent;
      font-size: 15px;
      font-weight: 600;
      line-height: 1;
      transition: all var(--transition);
      cursor: pointer;
    }

    .btn-primary {
      color: #08252B;
      background: linear-gradient(135deg, #2DE1C2, #73E8D2);
      box-shadow: 0 10px 30px rgba(45, 225, 194, 0.20);
    }

    .btn-primary:hover {
      transform: translateY(-2px);
      box-shadow: 0 18px 44px rgba(45, 225, 194, 0.28);
      color: #052025;
      background: linear-gradient(135deg, #49EBD0, #87EFDD);
    }

    .btn-primary:active {
      transform: translateY(1px);
      box-shadow: 0 8px 20px rgba(45, 225, 194, 0.16);
    }

    .btn-ghost {
      background: rgba(255, 255, 255, 0.06);
      color: #fff;
      border: 1px solid rgba(255, 255, 255, 0.20);
    }

    .btn-ghost:hover {
      border-color: rgba(45, 225, 194, 0.60);
      color: var(--accent);
      background: rgba(45, 225, 194, 0.06);
      transform: translateY(-2px);
    }

    .btn-ghost:active {
      transform: translateY(1px);
    }

    .category-hero {
      position: relative;
      padding: 76px 0 88px;
      min-height: 520px;
      display: flex;
      align-items: center;
      background:
        linear-gradient(100deg, rgba(11, 30, 42, 0.97) 8%, rgba(9, 28, 40, 0.86) 52%, rgba(7, 24, 34, 0.72)),
        url("/assets/images/backpic/back-1.png") center/cover no-repeat;
      border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    }

    .crumb {
      display: flex;
      align-items: center;
      flex-wrap: wrap;
      gap: 8px;
      font-size: 14px;
      color: var(--text-weak);
      margin-bottom: 20px;
    }

    .crumb a {
      color: var(--text-sub);
    }

    .crumb a:hover {
      color: var(--accent);
    }

    .crumb-sep {
      opacity: 0.6;
    }

    .hero-kicker {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: rgba(45, 225, 194, 0.10);
      border: 1px solid rgba(45, 225, 194, 0.24);
      color: var(--accent);
      font-size: 13px;
      font-weight: 600;
      padding: 7px 14px;
      border-radius: 100px;
      margin-bottom: 18px;
    }

    .category-hero h1 {
      font-size: 44px;
      font-weight: 800;
      color: #fff;
      letter-spacing: 0.02em;
      margin-bottom: 20px;
    }

    .hero-lead {
      color: var(--text-sub);
      font-size: 17px;
      max-width: 560px;
      margin-bottom: 30px;
    }

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

    .hero-visual {
      position: relative;
      margin: 0;
    }

    .visual-frame {
      position: relative;
      border-radius: 24px;
      overflow: hidden;
      border: 1px solid rgba(255, 255, 255, 0.16);
      box-shadow: 0 30px 80px rgba(0, 0, 0, 0.32);
      background: rgba(255, 255, 255, 0.03);
    }

    .visual-frame::after {
      content: "";
      position: absolute;
      inset: 0;
      background: linear-gradient(200deg, transparent 52%, rgba(8, 25, 36, 0.70));
      border-radius: 24px;
    }

    .visual-frame img {
      width: 100%;
      aspect-ratio: 5 / 4;
      object-fit: cover;
    }

    .float-pill {
      position: absolute;
      z-index: 2;
      display: inline-flex;
      align-items: center;
      gap: 9px;
      background: rgba(255, 255, 255, 0.88);
      color: #0B1E2A;
      backdrop-filter: blur(8px);
      font-size: 13px;
      font-weight: 600;
      padding: 10px 16px;
      border-radius: 100px;
      box-shadow: 0 14px 36px rgba(0, 0, 0, 0.24);
      white-space: nowrap;
    }

    .float-pill i {
      color: var(--accent);
    }

    .float-pill.top {
      top: 18px;
      right: -10px;
    }

    .float-pill.bottom {
      bottom: 24px;
      left: -16px;
      color: #fff;
      background: rgba(11, 30, 42, 0.82);
      border: 1px solid rgba(255, 255, 255, 0.16);
    }

    .focus-statement {
      height: 100%;
      padding: 30px;
      background: linear-gradient(150deg, rgba(45, 225, 194, 0.12), rgba(45, 225, 194, 0.03));
      border: 1px solid rgba(45, 225, 194, 0.22);
      border-radius: var(--radius-lg);
      color: #fff;
      font-size: 19px;
      font-weight: 600;
      line-height: 1.7;
      display: flex;
      flex-direction: column;
      gap: 14px;
      justify-content: center;
    }

    .focus-statement i {
      color: var(--accent);
      font-size: 26px;
    }

    .check-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 18px;
      height: 100%;
    }

    .check-item {
      background: rgba(255, 255, 255, 0.055);
      border: 1px solid rgba(255, 255, 255, 0.12);
      border-radius: 20px;
      padding: 26px 22px;
      display: flex;
      flex-direction: column;
      gap: 12px;
      transition: all var(--transition);
    }

    .check-item:hover {
      transform: translateY(-5px);
      border-color: rgba(45, 225, 194, 0.44);
      background: rgba(255, 255, 255, 0.08);
      box-shadow: 0 18px 40px rgba(0, 0, 0, 0.16);
    }

    .check-item .check-icon {
      width: 44px;
      height: 44px;
      border-radius: 14px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      color: var(--accent);
      background: rgba(45, 225, 194, 0.12);
      font-size: 18px;
      margin-bottom: 4px;
    }

    .check-item h3 {
      color: #fff;
      font-size: 17px;
    }

    .check-item p {
      color: var(--text-sub);
      font-size: 14px;
      margin: 0;
    }

    .promo-layout {
      display: grid;
      grid-template-columns: 7fr 5fr;
      gap: 22px;
    }

    .media-card {
      position: relative;
      background: linear-gradient(155deg, rgba(255, 255, 255, 0.10), rgba(255, 255, 255, 0.04));
      border: 1px solid rgba(255, 255, 255, 0.13);
      border-radius: 24px;
      overflow: hidden;
      transition: all var(--transition);
      height: 100%;
      display: flex;
      flex-direction: column;
    }

    .media-card:hover {
      transform: translateY(-5px);
      border-color: rgba(45, 225, 194, 0.44);
      box-shadow: 0 28px 70px rgba(0, 0, 0, 0.28);
      background: linear-gradient(155deg, rgba(255, 255, 255, 0.13), rgba(255, 255, 255, 0.05));
    }

    .media-visual {
      position: relative;
      overflow: hidden;
      background: #103241;
    }

    .media-card-lg .media-visual {
      aspect-ratio: 16 / 10;
    }

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

    .media-card:hover .media-visual img {
      transform: scale(1.03);
    }

    .media-card-body {
      padding: 26px;
      display: flex;
      flex-direction: column;
      flex: 1;
      gap: 12px;
    }

    .visual-tag {
      position: absolute;
      z-index: 2;
      top: 16px;
      left: 16px;
      background: var(--badge-bg);
      color: var(--badge-text);
      font-size: 12px;
      font-weight: 700;
      padding: 6px 12px;
      border-radius: 100px;
      box-shadow: 0 8px 20px rgba(0, 0, 0, 0.12);
    }

    .media-card h3 {
      color: #fff;
      font-size: 19px;
    }

    .media-card p {
      color: var(--text-sub);
      font-size: 15px;
    }

    .card-link {
      margin-top: auto;
      color: var(--accent);
      font-weight: 600;
      font-size: 14px;
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }

    .card-link i {
      transition: transform var(--transition);
    }

    .card-link:hover i {
      transform: translateX(4px);
    }

    .promo-side {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 22px;
      height: 100%;
    }

    .promo-side .media-visual {
      aspect-ratio: 4 / 3;
    }

    .promo-side .media-card-body {
      padding: 20px;
    }

    .work-step-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      margin-top: 18px;
    }

    .step-item {
      background: rgba(255, 255, 255, 0.05);
      border: 1px solid rgba(255, 255, 255, 0.11);
      border-radius: 22px;
      padding: 28px 24px;
      position: relative;
      transition: all var(--transition);
    }

    .step-item:hover {
      border-color: rgba(45, 225, 194, 0.38);
      transform: translateY(-4px);
      background: rgba(255, 255, 255, 0.075);
    }

    .step-index {
      font-size: 14px;
      font-weight: 800;
      color: var(--gold);
      letter-spacing: 0.08em;
      display: inline-flex;
      align-items: center;
      gap: 8px;
      margin-bottom: 12px;
    }

    .step-index::after {
      content: "";
      height: 1px;
      width: 28px;
      background: rgba(213, 168, 106, 0.3);
    }

    .step-item h3 {
      color: #fff;
      font-size: 17px;
      margin-bottom: 9px;
    }

    .step-item p {
      color: var(--text-sub);
      font-size: 14px;
      line-height: 1.75;
      margin: 0;
    }

    .notice-bar {
      margin-top: 28px;
      display: flex;
      align-items: flex-start;
      gap: 14px;
      background: rgba(255, 244, 220, 0.05);
      border: 1px solid rgba(213, 168, 106, 0.28);
      border-radius: 18px;
      padding: 20px 24px;
      color: rgba(255, 235, 190, 0.82);
    }

    .notice-bar i {
      color: var(--gold);
      font-size: 18px;
      margin-top: 3px;
    }

    .notice-bar p {
      font-size: 15px;
      line-height: 1.8;
    }

    .habits-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 40px;
    }

    .habit-copy h3 {
      color: #fff;
      font-size: 20px;
      margin-bottom: 16px;
    }

    .habit-copy p {
      color: var(--text-sub);
      font-size: 16px;
      margin-bottom: 18px;
    }

    .habit-line {
      display: flex;
      gap: 12px;
      align-items: flex-start;
      padding: 13px 0;
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
      color: var(--text-main);
    }

    .habit-line i {
      color: var(--accent);
      margin-top: 5px;
      font-size: 14px;
    }

    .habit-line span {
      color: var(--text-sub);
      font-size: 14px;
      line-height: 1.7;
    }

    .tag-cloud {
      background: rgba(255, 255, 255, 0.04);
      border: 1px solid rgba(255, 255, 255, 0.12);
      border-radius: 26px;
      padding: 36px 30px;
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      align-content: flex-start;
    }

    .tag-cloud h4 {
      width: 100%;
      color: #fff;
      font-size: 16px;
      margin-bottom: 4px;
    }

    .tag-cloud p {
      width: 100%;
      color: var(--text-weak);
      font-size: 14px;
      margin-bottom: 12px;
    }

    .tag-pill {
      background: rgba(45, 225, 194, 0.10);
      border: 1px solid rgba(45, 225, 194, 0.16);
      color: rgba(220, 250, 245, 0.88);
      padding: 8px 16px;
      border-radius: 100px;
      font-size: 13px;
      font-weight: 600;
      transition: all var(--transition);
    }

    .tag-pill:hover {
      background: rgba(45, 225, 194, 0.18);
      color: #fff;
      transform: translateY(-1px);
    }

    .audience-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
    }

    .audience-card {
      background: linear-gradient(150deg, rgba(255, 255, 255, 0.085), rgba(255, 255, 255, 0.04));
      border: 1px solid rgba(255, 255, 255, 0.12);
      border-radius: 24px;
      padding: 30px 26px;
      transition: all var(--transition);
      display: flex;
      flex-direction: column;
      gap: 14px;
    }

    .audience-card:hover {
      transform: translateY(-5px);
      border-color: rgba(45, 225, 194, 0.42);
      box-shadow: 0 20px 54px rgba(0, 0, 0, 0.20);
      background: linear-gradient(150deg, rgba(255, 255, 255, 0.12), rgba(255, 255, 255, 0.05));
    }

    .audience-icon {
      width: 48px;
      height: 48px;
      border-radius: 16px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      color: var(--accent);
      background: rgba(45, 225, 194, 0.11);
      font-size: 20px;
    }

    .audience-card h3 {
      color: #fff;
      font-size: 18px;
    }

    .audience-card p {
      color: var(--text-sub);
      font-size: 14px;
      margin: 0;
    }

    .audience-card .text-link {
      margin-top: auto;
      color: var(--accent);
      font-size: 14px;
      font-weight: 600;
    }

    .faq-section .accordion {
      list-style: none;
      margin: 0;
      background: transparent;
    }

    .faq-section .accordion-item {
      background: rgba(255, 255, 255, 0.045);
      border: 1px solid rgba(255, 255, 255, 0.12);
      border-radius: 16px;
      margin-bottom: 16px;
      overflow: hidden;
      transition: border-color var(--transition), background var(--transition);
    }

    .faq-section .accordion-item:hover {
      border-color: rgba(45, 225, 194, 0.30);
    }

    .faq-section .accordion-title {
      position: relative;
      background: transparent;
      border: none;
      color: #fff;
      font-weight: 600;
      font-size: 16px;
      line-height: 1.6;
      padding: 19px 60px 19px 22px;
      display: block;
    }

    .faq-section .accordion-title::before {
      display: none;
    }

    .faq-section .accordion-title::after {
      content: "\f078";
      font-family: "Font Awesome 6 Free";
      font-weight: 900;
      position: absolute;
      right: 20px;
      top: 50%;
      transform: translateY(-50%);
      color: var(--accent);
      font-size: 13px;
      transition: transform var(--transition);
    }

    .faq-section .accordion-item.is-active .accordion-title::after {
      transform: translateY(-50%) rotate(180deg);
    }

    .faq-section .accordion-title:hover {
      color: var(--accent);
      background: rgba(255, 255, 255, 0.02);
    }

    .faq-section .accordion-content {
      color: var(--text-sub);
      font-size: 15px;
      line-height: 1.85;
      padding: 0 24px 20px 22px;
      background: transparent;
      border-top: 1px solid rgba(255, 255, 255, 0.08);
    }

    .cta-inner {
      background:
        linear-gradient(135deg, rgba(45, 225, 194, 0.14), rgba(45, 225, 194, 0.02)),
        url("/assets/images/backpic/back-3.png") center/cover no-repeat;
      border: 1px solid rgba(45, 225, 194, 0.25);
      border-radius: 30px;
      overflow: hidden;
      padding: 56px 54px;
      position: relative;
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      justify-content: space-between;
      gap: 40px;
    }

    .cta-inner::before {
      content: "";
      position: absolute;
      inset: 0;
      background: linear-gradient(90deg, rgba(7, 24, 34, 0.94), rgba(7, 24, 34, 0.72));
      pointer-events: none;
    }

    .cta-copy,
    .cta-form-wrap {
      position: relative;
      z-index: 2;
    }

    .cta-copy h2 {
      color: #fff;
      font-size: 30px;
      margin-bottom: 12px;
    }

    .cta-copy p {
      color: var(--text-sub);
      max-width: 520px;
    }

    .cta-form {
      display: flex;
      gap: 10px;
      flex-wrap: wrap;
      min-width: 320px;
      max-width: 460px;
      margin-left: auto;
    }

    .cta-form input {
      flex: 1 1 220px;
      min-height: 48px;
      border-radius: 12px;
      border: 1px solid rgba(255, 255, 255, 0.18);
      background: rgba(255, 255, 255, 0.10);
      color: #fff;
      padding: 0 16px;
      font-size: 14px;
    }

    .cta-form input::placeholder {
      color: rgba(255, 255, 255, 0.52);
    }

    .cta-form input:focus {
      outline: none;
      border-color: var(--accent);
      box-shadow: 0 0 0 3px rgba(45, 225, 194, 0.20);
    }

    .form-hint {
      width: 100%;
      color: var(--text-weak);
      font-size: 12px;
      margin-top: 4px;
    }

    .site-footer {
      border-top: 1px solid rgba(255, 255, 255, 0.09);
      background: rgba(6, 19, 28, 0.42);
      padding: 72px 0 28px;
      margin-top: 20px;
    }

    .container-inner {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 32px;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1.5fr;
      gap: 34px;
      padding-bottom: 40px;
    }

    .footer-brand-name {
      font-size: 19px;
      font-weight: 800;
      color: #fff;
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .brand-mark-footer {
      color: var(--accent);
    }

    .footer-desc {
      margin-top: 16px;
      color: var(--text-sub);
      font-size: 14px;
      line-height: 1.8;
    }

    .footer-col h4 {
      color: #fff;
      font-size: 15px;
      margin-bottom: 18px;
    }

    .footer-links {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 10px;
      margin: 0;
    }

    .footer-links a {
      color: var(--text-sub);
      font-size: 14px;
    }

    .footer-links a:hover {
      color: var(--accent);
    }

    .footer-note {
      color: var(--text-weak);
      font-size: 13px;
      line-height: 1.8;
    }

    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      padding-top: 22px;
      display: flex;
      flex-wrap: wrap;
      justify-content: space-between;
      gap: 10px 24px;
      color: var(--text-weak);
      font-size: 12px;
    }

    @media (max-width: 1200px) {
      .side-panel {
        width: 240px;
      }

      .main-wrap {
        width: calc(100% - 240px);
        margin-left: 240px;
      }

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

      .promo-layout {
        grid-template-columns: 1fr;
      }

      .promo-layout > .media-card {
        width: 100%;
      }

      .promo-side {
        grid-template-columns: 1fr 1fr;
      }

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

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

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

    @media (max-width: 900px) {
      .side-panel {
        transform: translateX(-105%);
        width: min(340px, 86vw);
        box-shadow: none;
      }

      .side-panel.open {
        transform: translateX(0);
      }

      .main-wrap {
        width: 100%;
        margin-left: 0;
        padding-top: 64px;
      }

      .mobile-topbar {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        height: 64px;
        z-index: 90;
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 12px;
        padding: 0 18px;
        background: rgba(9, 27, 38, 0.92);
        backdrop-filter: blur(12px);
        border-bottom: 1px solid rgba(255, 255, 255, 0.08);
      }

      .menu-toggle {
        width: 44px;
        height: 44px;
        display: inline-flex;
        align-items: center;
        justify-content: center;
        border: 1px solid rgba(255, 255, 255, 0.14);
        background: transparent;
        color: #fff;
        border-radius: 12px;
        font-size: 17px;
        cursor: pointer;
        transition: border-color var(--transition), color var(--transition);
      }

      .menu-toggle:hover {
        border-color: var(--accent);
        color: var(--accent);
      }

      .mobile-brand {
        color: #fff;
        font-size: 18px;
        font-weight: 800;
        display: flex;
        align-items: center;
        gap: 8px;
      }

      .mobile-brand i {
        color: var(--accent);
      }

      .mobile-brand:hover {
        color: var(--accent);
      }

      .topbar-mark {
        font-size: 13px;
        color: var(--text-weak);
        padding-right: 6px;
      }

      .category-hero {
        padding: 66px 0 76px;
      }

      .category-hero h1 {
        font-size: 38px;
      }

      .page-section {
        padding: 74px 0;
      }

      .section-title {
        font-size: 27px;
      }

      .habits-grid {
        grid-template-columns: 1fr;
        gap: 26px;
      }

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

      .cta-inner {
        padding: 46px 28px;
      }

      .cta-form {
        min-width: 0;
        width: 100%;
        margin-left: 0;
      }
    }

    @media (max-width: 640px) {
      .section-container,
      .container-inner {
        padding: 0 20px;
      }

      .category-hero {
        padding: 54px 0 58px;
      }

      .category-hero h1 {
        font-size: 30px;
      }

      .hero-lead {
        font-size: 15px;
      }

      .hero-cta .btn {
        width: 100%;
        flex: 1 1 100%;
      }

      .float-pill.top {
        right: 4px;
        top: 10px;
        font-size: 11px;
      }

      .float-pill.bottom {
        left: 4px;
        bottom: 10px;
        font-size: 11px;
      }

      .visual-frame img {
        aspect-ratio: 16 / 10;
      }

      .page-section {
        padding: 60px 0;
      }

      .section-title {
        font-size: 24px;
      }

      .section-lead {
        font-size: 15px;
      }

      .check-item,
      .step-item,
      .audience-card {
        padding: 22px 18px;
      }

      .promo-side {
        grid-template-columns: 1fr;
      }

      .work-step-grid {
        grid-template-columns: 1fr;
      }

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

      .media-card-body {
        padding: 20px;
      }

      .cta-inner {
        padding: 38px 20px;
        border-radius: 24px;
      }

      .cta-copy h2 {
        font-size: 24px;
      }

      .footer-grid {
        grid-template-columns: 1fr;
        row-gap: 30px;
      }

      .footer-bottom {
        flex-direction: column;
      }
    }

/* roulang page: category4 */
:root {
  --primary: #0B1E2A;
  --primary-deep: #081620;
  --panel-bg: rgba(255,255,255,.06);
  --glass-bg: rgba(255,255,255,.10);
  --accent: #2DE1C2;
  --accent-gold: #D5A86A;
  --text: rgba(255,255,255,.92);
  --text-sub: rgba(255,255,255,.68);
  --text-weak: rgba(255,255,255,.46);
  --line: rgba(255,255,255,.14);
  --line-focus: rgba(45,225,194,.55);
  --radius-lg: 22px;
  --radius-md: 14px;
  --radius-sm: 10px;
  --shadow-lg: 0 24px 70px rgba(0,0,0,.28);
  --shadow-md: 0 14px 36px rgba(0,0,0,.18);
  --transition: .18s ease;
  --font: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, -apple-system, sans-serif;
}
*, *::before, *::after {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
}
body {
  margin: 0;
  font-family: var(--font);
  color: var(--text);
  background:
    radial-gradient(circle at 18% 0%, rgba(45,225,194,.10), transparent 34%),
    radial-gradient(circle at 86% 24%, rgba(213,168,106,.06), transparent 28%),
    var(--primary);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}
img {
  display: block;
  max-width: 100%;
}
a {
  color: var(--accent);
  text-decoration: none;
  transition: color var(--transition);
}
a:hover {
  color: #BFF7ED;
  text-decoration: none;
}
button, input {
  font-family: inherit;
}
a:focus-visible, button:focus-visible, input:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 8px;
}
.skip-link {
  position: absolute;
  left: -999px;
  top: 12px;
  z-index: 100;
  background: var(--accent);
  color: #062A25;
  padding: 10px 16px;
  border-radius: 8px;
}
.skip-link:focus {
  left: 12px;
}
.main-content {
  min-height: 100vh;
  margin-left: 264px;
  display: flex;
  flex-direction: column;
}
.container-inner {
  width: 100%;
  max-width: 1240px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 32px;
  padding-right: 32px;
}
.section-pad {
  padding: 92px 0;
}
.section-pad--tight {
  padding: 64px 0;
}

/* 左侧导航 */
.side-panel {
  position: fixed;
  inset: 0 auto 0 0;
  width: 264px;
  z-index: 70;
  background: rgba(8,22,32,.88);
  backdrop-filter: blur(20px);
  border-right: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  padding: 24px 16px 18px;
}
.brand-link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 6px 8px 20px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 24px;
}
.brand-mark {
  width: 40px;
  min-width: 40px;
  height: 40px;
  border-radius: 13px;
  background: linear-gradient(135deg, var(--accent), #13A99A);
  color: #062A25;
  display: grid;
  place-items: center;
  font-weight: 800;
  letter-spacing: .5px;
  font-size: 14px;
  box-shadow: 0 0 24px rgba(45,225,194,.26);
}
.brand-name {
  color: var(--text);
  font-size: 18px;
  font-weight: 700;
  letter-spacing: .02em;
  transition: color var(--transition);
}
.brand-link:hover .brand-name {
  color: var(--accent);
}
.side-nav-label {
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--text-weak);
  padding-left: 14px;
  margin-bottom: 10px;
}
.side-nav {
  display: flex;
  flex-direction: column;
  gap: 5px;
}
.nav-item {
  display: flex;
  align-items: center;
  gap: 13px;
  padding: 12px 14px;
  border-radius: 13px;
  color: var(--text-sub);
  font-size: 15px;
  position: relative;
  transition: color var(--transition), background var(--transition), box-shadow var(--transition);
}
.nav-icon {
  width: 22px;
  text-align: center;
  font-size: 15px;
  opacity: .85;
}
.nav-item:hover {
  background: rgba(255,255,255,.05);
  color: var(--text);
}
.nav-item.active {
  background: rgba(45,225,194,.10);
  color: var(--accent);
  box-shadow: inset 3px 0 0 var(--accent);
}
.nav-item.active .nav-icon {
  opacity: 1;
}
.side-panel-foot {
  margin-top: auto;
  padding: 16px 14px 4px;
  border-top: 1px solid rgba(255,255,255,.08);
  color: var(--text-weak);
  font-size: 12px;
  letter-spacing: .06em;
}

/* 移动端导航 */
.mobile-topbar {
  display: none;
  height: 64px;
  align-items: center;
  justify-content: space-between;
  padding: 0 18px;
  position: sticky;
  top: 0;
  z-index: 80;
  background: rgba(8,22,32,.92);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--line);
}
.mobile-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
  font-weight: 700;
  font-size: 17px;
}
.mobile-brand .brand-mark {
  width: 34px;
  min-width: 34px;
  height: 34px;
  border-radius: 10px;
  font-size: 13px;
}
.menu-toggle {
  width: 44px;
  height: 44px;
  border: 1px solid var(--line);
  background: rgba(255,255,255,.05);
  border-radius: 12px;
  color: var(--text);
  font-size: 18px;
  display: grid;
  place-items: center;
  cursor: pointer;
  transition: all var(--transition);
}
.menu-toggle:hover {
  border-color: var(--accent);
  color: var(--accent);
}
.nav-scrim {
  display: none;
}

/* 通用标题 */
.section-kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .12em;
  color: var(--accent-gold);
  text-transform: uppercase;
}
.section-kicker::before {
  content: "";
  width: 38px;
  height: 2px;
  background: var(--accent-gold);
}
.section-head {
  margin-bottom: 44px;
}
.section-head h2 {
  font-size: 31px;
  line-height: 1.28;
  margin: 0 0 10px;
  font-weight: 700;
  color: var(--text);
}
.section-head p {
  max-width: 780px;
  margin: 0;
  color: var(--text-sub);
  font-size: 16px;
}
.section-head--center {
  text-align: center;
}
.section-head--center p {
  margin: 0 auto;
}
.section-head--center .section-kicker {
  justify-content: center;
}

/* Hero */
.cat-hero {
  position: relative;
  min-height: 420px;
  display: flex;
  align-items: center;
  padding: 120px 0 92px;
  overflow: hidden;
  border-bottom: 1px solid rgba(255,255,255,.07);
}
.cat-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: url('/assets/images/backpic/back-1.png') center / cover no-repeat;
  opacity: .24;
}
.cat-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(11,30,42,.92) 0%, rgba(11,30,42,.76) 52%, rgba(8,22,32,.42) 100%);
}
.cat-hero .container-inner {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1.12fr .88fr;
  align-items: center;
  gap: 40px;
}
.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--accent);
  letter-spacing: .12em;
  font-size: 13px;
  font-weight: 700;
  margin-bottom: 16px;
  text-transform: uppercase;
}
.hero-eyebrow i {
  font-size: 16px;
}
.cat-hero h1 {
  font-size: 47px;
  line-height: 1.16;
  margin: 0 0 18px;
  font-weight: 700;
  color: #fff;
  letter-spacing: .02em;
}
.hero-sub {
  font-size: 17px;
  max-width: 640px;
  color: var(--text-sub);
  margin-bottom: 30px;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 13px 22px;
  border-radius: 12px;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.2;
  cursor: pointer;
  border: 1px solid transparent;
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition), border-color var(--transition);
}
.btn-primary {
  background: linear-gradient(135deg, #2DE1C2, #12B19F);
  color: #062A25;
  box-shadow: 0 8px 24px rgba(45,225,194,.18);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 34px rgba(45,225,194,.30);
  color: #041E1A;
}
.btn-primary:active {
  transform: translateY(1px) scale(.99);
}
.btn-ghost {
  background: rgba(255,255,255,.05);
  border-color: var(--line);
  color: var(--text);
}
.btn-ghost:hover {
  transform: translateY(-2px);
  border-color: var(--accent);
  background: rgba(45,225,194,.08);
  color: var(--text);
}
.btn-ghost:active {
  transform: translateY(1px) scale(.99);
}
.hero-figure {
  aspect-ratio: 4 / 3;
  border-radius: 26px;
  overflow: hidden;
  border: 1px solid rgba(255,255,255,.15);
  background: url('/assets/images/backpic/back-2.png') center / cover no-repeat;
  position: relative;
  box-shadow: var(--shadow-lg);
}
.hero-figure::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(8,22,32,0) 40%, rgba(8,22,32,.38) 100%);
}

/* 数据条 */
.stats-section {
  padding: 40px 0 20px;
  border-bottom: 1px solid rgba(255,255,255,.08);
}
.stats-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}
.stat-item {
  background: rgba(255,255,255,.05);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 24px 22px;
  transition: border-color var(--transition), background var(--transition), transform var(--transition);
}
.stat-item:hover {
  border-color: rgba(45,225,194,.4);
  background: rgba(45,225,194,.05);
  transform: translateY(-3px);
}
.stat-num {
  display: block;
  font-size: 25px;
  line-height: 1.25;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 8px;
  font-variant-numeric: tabular-nums;
}
.stat-label {
  display: block;
  font-size: 14px;
  color: var(--text-sub);
  line-height: 1.55;
}

/* 品牌段 */
.splits-section {
  padding-top: 92px;
}
.split-summary {
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  gap: 56px;
  align-items: center;
}
.summary-copy p.lead {
  font-size: 16px;
  color: var(--text);
  margin: 0 0 18px;
}
.summary-copy p {
  color: var(--text-sub);
  margin: 0 0 14px;
}
.tag-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.tag-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 17px;
  border-radius: 999px;
  background: rgba(45,225,194,.06);
  border: 1px solid rgba(45,225,194,.2);
  color: var(--text-sub);
  font-size: 14px;
  transition: all var(--transition);
}
.tag-pill i {
  color: var(--accent);
  font-size: 13px;
}
.tag-pill:hover {
  background: rgba(45,225,194,.11);
  border-color: var(--accent);
  color: var(--text);
}

/* 特点卡片 */
.features-section {
  background: linear-gradient(180deg, transparent, rgba(255,255,255,.025) 20%, rgba(255,255,255,.025) 80%, transparent);
}
.feature-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}
.feature-card {
  position: relative;
  background: linear-gradient(165deg, rgba(255,255,255,.105), rgba(255,255,255,.045));
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 32px 30px;
  overflow: hidden;
  transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition);
}
.feature-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,.28), transparent);
}
.feature-card:hover {
  transform: translateY(-4px);
  border-color: var(--line-focus);
  box-shadow: var(--shadow-md);
}
.feature-icon {
  width: 48px;
  height: 48px;
  border-radius: 15px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  color: var(--accent);
  background: rgba(45,225,194,.1);
  border: 1px solid rgba(45,225,194,.18);
  margin-bottom: 22px;
}
.feature-card h3 {
  font-size: 20px;
  line-height: 1.4;
  margin: 0 0 12px;
  color: var(--text);
  font-weight: 700;
}
.feature-card p {
  margin: 0;
  color: var(--text-sub);
  font-size: 15px;
}

/* 图文判断板块 */
.visual-section {
  padding: 92px 0;
}
.media-split {
  display: grid;
  grid-template-columns: .95fr 1.05fr;
  gap: 58px;
  align-items: center;
}
.media-figure {
  position: relative;
  height: 430px;
  border-radius: 26px;
  overflow: hidden;
  border: 1px solid var(--line);
  background: url('/assets/images/coverpic/cover-4.png') center / cover no-repeat;
  box-shadow: var(--shadow-lg);
}
.media-figure::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 55%, rgba(8,22,32,.55) 100%);
}
.media-caption {
  position: absolute;
  z-index: 2;
  left: 18px;
  right: 18px;
  bottom: 18px;
  color: #fff;
  background: rgba(8,22,32,.34);
  border: 1px solid rgba(255,255,255,.16);
  backdrop-filter: blur(8px);
  padding: 14px 18px;
  border-radius: 16px;
  font-size: 14px;
}
.check-list {
  list-style: none;
  padding: 0;
  margin: 0 0 24px;
  display: grid;
  gap: 12px;
}
.check-list li {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  padding: 16px 18px;
  border: 1px solid var(--line);
  background: rgba(255,255,255,.04);
  border-radius: 16px;
  color: var(--text);
  transition: border-color var(--transition), background var(--transition);
}
.check-list li:hover {
  border-color: var(--line-focus);
  background: rgba(45,225,194,.05);
}
.check-list i {
  color: var(--accent);
  margin-top: 5px;
  font-size: 14px;
}

/* 关联栏目 */
.connection-section {
  padding: 40px 0 92px;
}
.category-section__panel {
  padding: 0 0 92px;
}
.connection-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 24px;
  align-items: stretch;
}
.connection-hero {
  position: relative;
  min-height: 290px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: flex;
  align-items: flex-end;
  border: 1px solid var(--line);
  background: url('/assets/images/coverpic/cover-7.webp') center / cover no-repeat;
}
.connection-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(8,22,32,.2), rgba(8,22,32,.72));
  z-index: 1;
}
.connection-hero .content {
  position: relative;
  z-index: 2;
  padding: 30px;
}
.connection-hero h3 {
  font-size: 23px;
  color: #fff;
  margin: 0 0 10px;
  font-weight: 700;
}
.connection-hero p {
  color: rgba(255,255,255,.8);
  margin: 0 0 18px;
  max-width: 560px;
}
.connection-mini {
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.entry-link {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 16px;
  align-items: center;
  background: rgba(255,255,255,.05);
  border: 1px solid var(--line);
  padding: 20px 18px;
  border-radius: 18px;
  color: var(--text);
  transition: all var(--transition);
}
.entry-link:hover {
  border-color: var(--accent);
  background: rgba(45,225,194,.05);
  color: var(--text);
  transform: translateY(-2px);
}
.entry-icon {
  width: 46px;
  height: 46px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  font-size: 18px;
  background: rgba(213,168,106,.1);
  border: 1px solid rgba(213,168,106,.2);
  color: var(--accent-gold);
}
.entry-copy strong {
  display: block;
  font-size: 17px;
  margin-bottom: 4px;
  color: var(--text);
}
.entry-copy span {
  font-size: 13px;
  color: var(--text-sub);
  line-height: 1.6;
}
.entry-link .fa-arrow-right {
  color: var(--text-weak);
  transition: color var(--transition), transform var(--transition);
}
.entry-link:hover .fa-arrow-right {
  color: var(--accent);
  transform: translateX(4px);
}

/* FAQ */
.faq-section {
  padding: 92px 0;
  background: linear-gradient(180deg, transparent, rgba(255,255,255,.028) 40%, rgba(255,255,255,.028) 60%, transparent);
  background-clip: padding-box;
}
.faq-panel {
  max-width: 920px;
  margin: 0 auto;
}
ul.accordion {
  list-style: none;
  margin: 0;
  padding: 0;
  background: transparent;
}
.accordion-item {
  background: rgba(255,255,255,.045) !important;
  border: 1px solid var(--line);
  border-radius: 16px;
  margin-bottom: 12px;
  overflow: hidden;
  transition: border-color var(--transition), background var(--transition);
}
.accordion-item:hover {
  border-color: var(--line-focus);
}
.accordion-item.is-active {
  border-color: rgba(45,225,194,.35);
}
.accordion-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 19px 22px !important;
  color: var(--text) !important;
  font-size: 16px;
  font-weight: 600;
  background: transparent !important;
  border: 0 !important;
  border-radius: 0 !important;
}
.accordion-title:hover {
  background: transparent !important;
  color: var(--accent) !important;
}
.accordion-title .fa-chevron-down {
  color: var(--accent);
  transition: transform .25s ease;
  flex-shrink: 0;
}
.accordion-item.is-active > .accordion-title .fa-chevron-down {
  transform: rotate(180deg);
}
.accordion-title::before,
.accordion-title::after {
  content: "" !important;
  display: none !important;
}
.accordion-content {
  background: rgba(255,255,255,.035);
  border-top: 1px solid rgba(255,255,255,.1);
  color: var(--text-sub);
  padding: 18px 22px;
}
.accordion-content p {
  margin: 0;
  font-size: 15px;
}

/* CTA */
.cta-section {
  padding: 40px 0 96px;
}
.cta-card {
  background:
    radial-gradient(circle at 78% 30%, rgba(45,225,194,.1), transparent 30%),
    rgba(255,255,255,.07);
  backdrop-filter: blur(12px);
  border: 1px solid var(--line);
  border-radius: 28px;
  padding: 48px;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 40px;
  align-items: center;
  box-shadow: var(--shadow-lg);
}
.cta-card h2 {
  font-size: 28px;
  line-height: 1.35;
  margin: 0 0 14px;
  font-weight: 700;
}
.cta-card p {
  margin: 0;
  color: var(--text-sub);
  max-width: 680px;
}
.cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: flex-end;
  min-width: 260px;
}

/* 页脚 */
.site-footer {
  margin-top: auto;
  border-top: 1px solid rgba(255,255,255,.08);
  background: linear-gradient(180deg, rgba(255,255,255,.02), transparent 40%);
  padding: 66px 0 32px;
}
.site-footer .container-inner {
  max-width: 1240px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.3fr;
  gap: 40px;
  padding-bottom: 38px;
}
.footer-brand-name {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 18px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 16px;
}
.footer-brand-name .brand-mark {
  width: 36px;
  min-width: 36px;
  height: 36px;
  border-radius: 11px;
  font-size: 13px;
}
.footer-desc, .footer-note {
  color: var(--text-sub);
  font-size: 14px;
  line-height: 1.8;
  margin: 0;
}
.site-footer h4 {
  color: var(--text);
  font-size: 15px;
  font-weight: 600;
  margin: 0 0 16px;
  letter-spacing: .04em;
}
.footer-links {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}
.footer-links a {
  color: var(--text-sub);
  font-size: 14px;
}
.footer-links a:hover {
  color: var(--accent);
}
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.08);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  gap: 14px;
  flex-wrap: wrap;
  color: var(--text-weak);
  font-size: 13px;
}

/* 响应式 */
@media (max-width: 1200px) {
  .cat-hero h1 {
    font-size: 40px;
  }
  .media-figure {
    height: 370px;
  }
  .footer-grid {
    grid-template-columns: 1.2fr 1fr 1fr;
  }
  .footer-col:last-child {
    grid-column: 1 / -1;
  }
}

@media (max-width: 1024px) {
  .container-inner {
    padding-left: 24px;
    padding-right: 24px;
  }
  .split-summary, .media-split {
    grid-template-columns: 1fr;
    gap: 28px;
  }
  .media-figure {
    min-height: 300px;
  }
  .feature-grid {
    grid-template-columns: 1fr 1fr;
    gap: 18px;
  }
  .connection-grid {
    grid-template-columns: 1fr 1fr;
  }
  .connection-hero {
    min-height: 240px;
  }
  .stats-row {
    grid-template-columns: repeat(2, 1fr);
    gap: 14px;
  }
  .cta-card {
    grid-template-columns: 1fr;
    padding: 34px;
  }
  .cta-actions {
    justify-content: flex-start;
  }
}

@media (max-width: 900px) {
  .side-panel {
    transform: translateX(-105%);
    transition: transform .28s ease;
    width: 284px;
  }
  body.nav-open .side-panel {
    transform: translateX(0);
    box-shadow: 20px 0 60px rgba(0,0,0,.4);
  }
  .main-content {
    margin-left: 0;
  }
  .mobile-topbar {
    display: flex;
  }
  .nav-scrim {
    display: block;
    position: fixed;
    inset: 0;
    z-index: 65;
    background: rgba(3,10,15,.56);
    opacity: 0;
    pointer-events: none;
    transition: opacity .25s ease;
  }
  body.nav-open .nav-scrim {
    opacity: 1;
    pointer-events: auto;
  }
  body.nav-open {
    overflow: hidden;
  }
}

@media (max-width: 640px) {
  .container-inner {
    padding-left: 18px;
    padding-right: 18px;
  }
  .section-pad {
    padding: 64px 0;
  }
  .section-pad--tight {
    padding: 48px 0;
  }
  .cat-hero {
    min-height: 0;
    padding: 80px 0 58px;
  }
  .cat-hero .container-inner {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  .cat-hero h1 {
    font-size: 34px;
  }
  .hero-sub {
    font-size: 15px;
  }
  .hero-figure {
    aspect-ratio: 16/10;
    min-height: 210px;
  }
  .section-head h2 {
    font-size: 26px;
  }
  .feature-grid {
    grid-template-columns: 1fr;
  }
  .feature-card {
    padding: 25px 22px;
  }
  .split-summary, .media-split {
    gap: 26px;
  }
  .media-figure {
    height: 280px;
  }
  .stats-row {
    grid-template-columns: 1fr;
  }
  .connection-grid {
    grid-template-columns: 1fr;
  }
  .connection-hero {
    min-height: 230px;
  }
  .entry-link {
    grid-template-columns: auto 1fr auto;
    padding: 15px 14px;
    gap: 12px;
  }
  .entry-copy span {
    display: none;
  }
  .faq-title, .accordion-title {
    font-size: 15px;
  }
  .cta-card {
    padding: 26px 20px;
    border-radius: 20px;
  }
  .cta-card h2 {
    font-size: 23px;
  }
  .cta-actions .btn {
    width: 100%;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }
  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
  }
}