/* roulang page: index */
:root {
  --primary: #E44D26;
  --primary-dark: #C23B14;
  --accent: #0F9D7A;
  --accent-dark: #0B8266;
  --bg: #F5F3EF;
  --surface: #FFFFFF;
  --ink: #0F1923;
  --ink-2: #1E2A33;
  --text: #1E2A33;
  --text-sub: #4C5A66;
  --text-weak: #8A97A3;
  --border: #DDE2E2;
  --warning: #D98726;
  --radius: 16px;
  --radius-sm: 10px;
  --radius-tag: 100px;
  --shadow: 0 2px 12px rgba(15,25,35,0.06);
  --shadow-lg: 0 16px 28px rgba(15,25,35,0.10);
  --font-sans: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  --font-digit: "DIN Alternate", "Bahnschrift", "Arial Narrow", sans-serif;
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  font-size: 16px;
}

body,
h1,
h2,
h3,
p,
figure,
blockquote,
ul {
  margin: 0;
}

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

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

button {
  font-family: inherit;
  border: 0;
  background: none;
  cursor: pointer;
}

:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 3px;
  border-radius: 6px;
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding-left: 20px;
  padding-right: 20px;
}

section {
  display: block;
}

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 48px;
  padding: 0 24px;
  border-radius: var(--radius-sm);
  font-weight: 700;
  font-size: 0.95rem;
  line-height: 1;
  transition: all 0.2s ease;
  white-space: nowrap;
  border: 1px solid transparent;
}

.btn svg,
.btn-icon {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
}

.btn-primary {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 8px 18px rgba(228, 77, 38, 0.25);
}

.btn-primary:hover {
  background: var(--primary-dark);
  transform: translateY(-1px);
  box-shadow: 0 10px 22px rgba(228, 77, 38, 0.28);
}

.btn-primary:active {
  transform: translateY(1px);
  box-shadow: none;
}

.btn-ghost {
  border-color: rgba(255, 255, 255, 0.38);
  color: #fff;
  background: rgba(255, 255, 255, 0.06);
}

.btn-ghost:hover {
  border-color: rgba(255, 255, 255, 0.8);
  background: rgba(255, 255, 255, 0.13);
}

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

.btn-light:hover {
  background: #f2f0ec;
  transform: translateY(-1px);
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.16);
}

.btn-outline-light {
  border-color: rgba(255, 255, 255, 0.45);
  color: #fff;
}

.btn-outline-light:hover {
  border-color: #fff;
  background: rgba(255, 255, 255, 0.08);
}

.btn-sm {
  min-height: 40px;
  padding: 0 16px;
  font-size: 0.875rem;
}

.btn-lg {
  min-height: 54px;
  padding: 0 34px;
  font-size: 1rem;
}

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-weight: 700;
  color: var(--primary);
}

.text-link svg {
  width: 18px;
  height: 18px;
  transition: transform 0.2s;
}

.text-link:hover svg {
  transform: translateX(3px);
}

/* ---------- 顶部信息条 ---------- */
.topbar {
  background: #0C151D;
  color: #b7c2c9;
  font-size: 0.8125rem;
  overflow: hidden;
}

.topbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 36px;
  gap: 16px;
}

.safe-tip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.safe-tip .dot {
  width: 6px;
  height: 6px;
  background: var(--accent);
  border-radius: 50%;
  box-shadow: 0 0 0 3px rgba(15, 157, 122, 0.2);
}

.topbar-link {
  color: #d3dce0;
  transition: color 0.2s;
}

.topbar-link:hover {
  color: var(--accent);
}

/* ---------- 主导航 ---------- */
.site-header {
  background: var(--ink);
  color: #fff;
}

.main-nav {
  background: #182430;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  position: sticky;
  top: 0;
  z-index: 50;
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 72px;
  gap: 14px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
  margin-right: 6px;
  transition: opacity 0.2s;
}

.brand:hover {
  opacity: 0.85;
}

.brand-mark {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(145deg, var(--primary), #b43a1c);
  border-radius: 12px;
  color: #fff;
  box-shadow: 0 6px 16px rgba(228, 77, 38, 0.28);
}

.brand-mark svg {
  width: 22px;
  height: 22px;
}

.brand-name {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.brand-name strong {
  font-size: 1.02rem;
  letter-spacing: 0.3px;
}

.brand-name small {
  margin-top: 3px;
  font-size: 0.75rem;
  color: #aab5bd;
  letter-spacing: 1.2px;
}

.nav-links {
  flex: 1;
  display: flex;
  justify-content: center;
  min-width: 0;
  align-items: center;
}

.nav-pill {
  display: flex;
  align-items: center;
  gap: 4px;
  background: rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-tag);
  padding: 4px;
  max-width: 100%;
}

.nav-item {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 36px;
  padding: 0 16px;
  border-radius: 100px;
  font-size: 0.9rem;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.78);
  white-space: nowrap;
  transition: all 0.2s ease;
}

.nav-item:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.12);
}

.nav-item.active {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 5px 12px rgba(228, 77, 38, 0.35);
}

.nav-cta {
  flex-shrink: 0;
}

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

.nav-cta .btn-sm:hover {
  background: var(--accent-dark);
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  color: #fff;
  background-image: linear-gradient(115deg, rgba(9, 18, 26, 0.97) 0%, rgba(14, 31, 39, 0.92) 58%, rgba(15, 48, 47, 0.84) 100%), url('/assets/images/backpic/back-2.png');
  background-size: cover;
  background-position: center;
  padding: 78px 0 150px;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 80% 10%, rgba(15, 157, 122, 0.22), transparent 38%);
  pointer-events: none;
}

.hero-inner {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1fr 0.88fr;
  align-items: center;
  gap: 68px;
}

.hero-copy {
  max-width: 660px;
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 100px;
  padding: 7px 14px;
  font-size: 0.8125rem;
  color: #e7f0f2;
}

.hero-eyebrow svg {
  width: 16px;
  height: 16px;
  color: var(--accent);
}

.hero h1 {
  margin: 22px 0 0;
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  line-height: 1.32;
  letter-spacing: 0.1px;
}

.hero-lead {
  margin-top: 18px;
  font-size: clamp(1rem, 1.4vw, 1.15rem);
  color: #cfdade;
  line-height: 1.85;
  max-width: 560px;
}

.hero-btns {
  margin-top: 30px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.hero-note {
  margin-top: 18px;
  font-size: 0.8125rem;
  color: #9eb0b8;
  display: flex;
  align-items: center;
  gap: 10px;
}

.hero-note span {
  padding: 2px 10px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 100px;
}

/* hero visual */
.hero-visual {
  position: relative;
  display: flex;
  justify-content: flex-end;
}

.visual-card {
  position: relative;
  width: min(340px, 100%);
  aspect-ratio: 3 / 4;
  border-radius: 26px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.16);
  box-shadow: 0 26px 60px rgba(0, 0, 0, 0.4);
}

.visual-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.visual-card::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(15, 25, 35, 0) 62%, rgba(15, 25, 35, 0.55) 100%);
}

.visual-badge {
  position: absolute;
  left: 16px;
  right: 16px;
  bottom: 18px;
  z-index: 3;
  background: rgba(15, 25, 35, 0.72);
  border: 1px solid rgba(255, 255, 255, 0.14);
  backdrop-filter: blur(14px);
  border-radius: 14px;
  padding: 13px 14px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: #fff;
}

.visual-badge strong {
  display: block;
  font-size: 0.95rem;
}

.visual-badge small {
  display: block;
  font-size: 0.75rem;
  color: #b9c6cc;
  margin-top: 2px;
}

.badge-pill {
  background: var(--accent);
  color: #fff;
  border-radius: 100px;
  font-size: 0.7rem;
  padding: 4px 10px;
}

.visual-ring {
  position: absolute;
  width: 170px;
  height: 170px;
  border-radius: 50%;
  border: 26px solid rgba(15, 157, 122, 0.12);
  top: 40px;
  right: -64px;
  z-index: 0;
}

/* 指标面板 */
.stat-panel {
  position: relative;
  z-index: 5;
  margin: -96px auto 0;
  max-width: 1160px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 22px;
  box-shadow: var(--shadow-lg);
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  overflow: hidden;
}

.stat-box {
  padding: 26px 24px;
  border-right: 1px solid var(--border);
}

.stat-box:last-child {
  border-right: 0;
}

.stat-label {
  font-size: 0.8125rem;
  color: var(--text-weak);
  display: flex;
  align-items: center;
  gap: 6px;
}

.stat-label svg {
  color: var(--accent);
  width: 15px;
  height: 15px;
}

.stat-value {
  margin-top: 8px;
  font-size: 1.6rem;
  font-weight: 800;
  font-family: var(--font-digit);
  color: var(--ink-2);
  line-height: 1.1;
}

.stat-box p {
  margin-top: 6px;
  color: var(--text-sub);
  font-size: 0.8125rem;
  line-height: 1.5;
}

/* 通用板块 */
.section {
  padding: 92px 0;
}

.section-sm {
  padding: 58px 0;
}

.section-head {
  max-width: 760px;
  margin-bottom: 42px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(228, 77, 38, 0.1);
  color: var(--primary);
  font-size: 0.8125rem;
  font-weight: 700;
  border-radius: 100px;
  padding: 6px 14px;
  letter-spacing: 0.5px;
}

.section-head h2 {
  margin-top: 16px;
  font-size: clamp(1.5rem, 2.5vw, 2rem);
  line-height: 1.35;
  color: var(--text);
}

.section-head p {
  margin-top: 12px;
  color: var(--text-sub);
  line-height: 1.85;
  max-width: 640px;
}

.section-more {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 18px;
  color: var(--text-weak);
  font-size: 0.875rem;
  transition: color 0.2s;
}

.section-more:hover {
  color: var(--primary);
}

/* 热门内容 */
.section-feature {
  padding-top: 80px;
}

.spotlight-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 26px;
}

.spot-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  display: flex;
  flex-direction: column;
}

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

.spot-img {
  height: 226px;
  overflow: hidden;
  position: relative;
}

.spot-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.spot-card:hover .spot-img img {
  transform: scale(1.025);
}

.spot-body {
  padding: 24px;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.spot-tag {
  display: inline-flex;
  align-self: flex-start;
  background: rgba(15, 157, 122, 0.1);
  color: var(--accent-dark);
  font-size: 0.75rem;
  font-weight: 700;
  border-radius: 100px;
  padding: 4px 11px;
}

.spot-title {
  margin: 15px 0 9px;
  font-size: 1.15rem;
  font-weight: 750;
  line-height: 1.6;
  color: var(--ink-2);
}

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

.spot-body p {
  color: var(--text-sub);
  font-size: 0.925rem;
  line-height: 1.75;
  margin-bottom: 18px;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.spot-foot {
  margin-top: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px dashed var(--border);
  padding-top: 14px;
  color: var(--text-weak);
  font-size: 0.8125rem;
}

/* 最新信息 / CMS 区域 */
.latest-section {
  background: #fff;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.latest-layout {
  display: grid;
  grid-template-columns: 1fr 390px;
  gap: 42px;
}

.latest-title {
  font-size: 1.3rem;
  font-weight: 750;
  margin-bottom: 4px;
}

.cms-list-head {
  border-bottom: 1px solid var(--border);
  padding: 6px 4px 16px;
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
}

.cms-list-head p {
  color: var(--text-weak);
  font-size: 0.875rem;
}

.cms-list {
  border-top: 0;
}

.cms-item {
  padding: 24px 0;
  border-bottom: 1px solid var(--border);
  transition: background 0.2s;
}

.cms-item:last-child {
  border-bottom: 0;
}

.cms-topline {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 8px;
}

.chip-icon,
.category-badge {
  display: inline-block;
  background: rgba(228, 77, 38, 0.09);
  color: var(--primary);
  border-radius: 100px;
  font-size: 0.75rem;
  padding: 3px 10px;
}

.category-badge--green {
  background: rgba(15, 157, 122, 0.1);
  color: var(--accent-dark);
}

.news-time {
  color: var(--text-weak);
  font-size: 0.8125rem;
}

.cms-item h3 {
  font-size: 1.05rem;
  font-weight: 700;
  line-height: 1.55;
}

.cms-item h3 a {
  color: var(--ink-2);
  transition: color 0.2s;
}

.cms-item h3 a:hover {
  color: var(--primary);
}

.cms-item .item-intro {
  color: var(--text-sub);
  font-size: 0.925rem;
  line-height: 1.75;
  margin-top: 8px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.item-more {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  margin-top: 13px;
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--accent);
}

.item-more:hover {
  color: var(--primary);
}

.cms-empty {
  border: 1px dashed #cfd6d6;
  background: #FAFAF8;
  border-radius: var(--radius);
  padding: 64px 24px;
  text-align: center;
  color: var(--text-weak);
}

.cms-empty svg {
  width: 44px;
  height: 44px;
  margin: 0 auto 14px;
  color: #c6cfcf;
}

/* 右侧帮助小卡 */
.side-guide {
  background: #F6F4F0;
  border: 1px solid var(--border);
  border-radius: 20px;
  overflow: hidden;
  align-self: start;
}

.side-banner {
  height: 130px;
  background-image: linear-gradient(120deg, rgba(228, 77, 38, 0.88), rgba(192, 92, 43, 0.86)), url('/assets/images/backpic/back-1.png');
  background-size: cover;
  background-position: center;
  color: #fff;
  display: flex;
  align-items: flex-end;
  padding: 20px;
}

.side-banner h3 {
  font-size: 1.12rem;
  font-weight: 750;
}

.side-guide-content {
  padding: 22px;
}

.alert-title {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--ink-2);
}

.alert-title svg {
  color: var(--warning);
  width: 18px;
  height: 18px;
}

.download-check-list {
  margin-top: 15px;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 12px;
}

.download-check-list li {
  padding-left: 28px;
  position: relative;
  color: var(--text-sub);
  font-size: 0.875rem;
  line-height: 1.65;
}

.download-check-list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  top: 0;
  width: 19px;
  height: 19px;
  background: var(--accent);
  color: #fff;
  border-radius: 50%;
  font-size: 0.7rem;
  text-align: center;
  line-height: 20px;
}

.side-guide-link {
  margin-top: 24px;
  width: 100%;
}

/* 保障条 */
.badge-band {
  background: var(--ink);
  color: #fff;
  padding: 64px 0;
}

.badge-band-title {
  font-size: clamp(1.4rem, 2vw, 1.8rem);
  margin-bottom: 36px;
  text-align: center;
}

.badge-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 20px;
  overflow: hidden;
}

.badge-box {
  padding: 26px 22px;
  position: relative;
  border-right: 1px solid rgba(255, 255, 255, 0.12);
  min-height: 150px;
}

.badge-box:last-child {
  border-right: 0;
}

.badge-icon {
  width: 46px;
  height: 46px;
  background: rgba(15, 157, 122, 0.16);
  border: 1px solid rgba(15, 157, 122, 0.3);
  color: #5FD3B4;
  border-radius: 13px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
}

.badge-icon svg {
  width: 22px;
  height: 22px;
}

.badge-box h3 {
  font-size: 1rem;
  font-weight: 700;
}

.badge-box p {
  color: #aebdc4;
  font-size: 0.875rem;
  line-height: 1.7;
  margin-top: 6px;
}

/* 用户评价 */
.review-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: 28px;
  gap: 18px;
}

.review-nav {
  display: inline-flex;
  gap: 8px;
  flex-shrink: 0;
}

.review-btn {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text);
  font-size: 1.35rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s;
  box-shadow: var(--shadow);
}

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

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

.reviews-scroller {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: 375px;
  gap: 20px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  padding: 6px 2px 18px;
  scrollbar-width: none;
}

.reviews-scroller::-webkit-scrollbar {
  display: none;
}

.review-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 18px;
  box-shadow: var(--shadow);
  padding: 24px;
  scroll-snap-align: start;
  position: relative;
}

.reviewer-top {
  display: flex;
  align-items: center;
  gap: 12px;
}

.avatar {
  width: 46px;
  height: 46px;
  border-radius: 14px;
  background: linear-gradient(145deg, #1a2f3b, #0F1923);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 0.9rem;
}

.avatar.green {
  background: linear-gradient(145deg, var(--accent), #0a6653);
}

.avatar.orange {
  background: linear-gradient(145deg, var(--primary), #a93316);
}

.reviewer-name {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--ink-2);
}

.reviewer-time {
  font-size: 0.75rem;
  color: var(--text-weak);
  margin-top: 2px;
}

.stars {
  margin-left: auto;
  color: #F5A623;
  font-size: 0.85rem;
  letter-spacing: 1px;
  white-space: nowrap;
}

.review-card blockquote {
  margin-top: 17px;
  color: var(--text-sub);
  line-height: 1.85;
  font-size: 0.95rem;
}

/* FAQ */
.faq-section {
  padding-bottom: 84px;
}

.faq-wrap {
  max-width: 800px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 20px;
  box-shadow: var(--shadow);
  padding: 12px 28px;
}

.faq-item {
  border-bottom: 1px solid var(--border);
}

.faq-item:last-child {
  border-bottom: 0;
}

.faq-item summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  list-style: none;
  cursor: pointer;
  padding: 22px 2px;
  font-weight: 700;
  color: var(--ink-2);
  font-size: 1rem;
  transition: color 0.2s;
}

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

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

.faq-icon {
  display: inline-flex;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: var(--bg);
  color: var(--text-sub);
  position: relative;
  flex-shrink: 0;
}

.faq-icon::before,
.faq-icon::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  width: 12px;
  height: 1.6px;
  background: currentColor;
  transform: translate(-50%, -50%);
  border-radius: 2px;
}

.faq-icon::after {
  transform: translate(-50%, -50%) rotate(90deg);
  transition: transform 0.2s ease;
}

.faq-item[open] .faq-icon::after {
  transform: translate(-50%, -50%) rotate(0);
}

.faq-item p {
  color: var(--text-sub);
  line-height: 1.95;
  padding: 0 2px 24px;
  max-width: 680px;
  font-size: 0.95rem;
}

/* 底部 CTA */
.cta-panel {
  padding: 36px 0 96px;
}

.cta-box {
  background:
    linear-gradient(105deg, rgba(9, 18, 26, 0.96), rgba(16, 45, 52, 0.9)),
    url('/assets/images/backpic/back-3.webp') center / cover;
  border-radius: 28px;
  color: #fff;
  padding: 54px 58px;
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 30px;
  position: relative;
  overflow: hidden;
}

.cta-box::after {
  content: "";
  position: absolute;
  width: 220px;
  height: 220px;
  border-radius: 50%;
  background: rgba(15, 157, 122, 0.2);
  right: -50px;
  top: -60px;
}

.cta-box h2 {
  font-size: clamp(1.55rem, 2.2vw, 2.1rem);
  line-height: 1.4;
  letter-spacing: 0.2px;
}

.cta-box p {
  margin-top: 12px;
  max-width: 640px;
  color: #c9d6da;
  font-size: 1rem;
  line-height: 1.85;
}

.cta-btns {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  position: relative;
  z-index: 2;
}

/* 页脚 */
.footer {
  background: #0C151D;
  color: #b6c2c8;
  padding-top: 66px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.7fr 1fr 1fr 1.3fr;
  gap: 46px;
  padding-bottom: 48px;
}

.footer-brand .brand-name {
  color: #fff;
}

.footer-brand p {
  margin-top: 18px;
  font-size: 0.9rem;
  line-height: 1.85;
  color: #8fa3ad;
  max-width: 300px;
}

.footer-head {
  color: #fff;
  font-weight: 700;
  font-size: 1rem;
  margin-bottom: 18px;
}

.footer-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 10px;
}

.footer-list a {
  color: #94a7b0;
  font-size: 0.9rem;
  transition: all 0.2s;
}

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

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding: 22px 0;
  font-size: 0.8125rem;
  color: #71838d;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
}

.footer-bottom strong {
  color: #aebec6;
}

.footer-domain {
  color: var(--accent);
  font-weight: 700;
  font-family: var(--font-digit);
}

/* 响应式 */
@media (max-width: 1024px) {
  .hero-inner {
    grid-template-columns: 1fr 0.85fr;
    gap: 40px;
  }

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

  .stat-box:nth-child(2) {
    border-right: 0;
  }

  .stat-box:nth-child(-n+2) {
    border-bottom: 1px solid var(--border);
  }

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

  .latest-layout {
    grid-template-columns: 1fr 340px;
    gap: 30px;
  }

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

  .badge-box:nth-child(2) {
    border-right: 0;
  }

  .badge-box:nth-child(-n+2) {
    border-bottom: 1px solid rgba(255, 255, 255, 0.12);
  }

  .cta-box {
    padding: 45px 28px;
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .topbar .container {
    justify-content: flex-start;
  }

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

  .nav-cta .btn {
    padding: 0 13px;
  }

  .hero {
    padding: 46px 0 130px;
  }

  .brand-name strong {
    font-size: 0.95rem;
  }

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

  .hero-copy {
    text-align: left;
  }

  .hero-visual {
    justify-content: center;
  }

  .stat-panel {
    grid-template-columns: repeat(2, 1fr);
    margin: -58px auto 0;
  }

  .section {
    padding: 60px 0;
  }

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

  .spot-img {
    height: 200px;
  }

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

  .side-guide {
    max-width: 100%;
  }

  .badge-band {
    padding: 46px 0;
  }

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

  .badge-box {
    border-right: 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.12);
    min-height: 0;
  }

  .badge-box:last-child {
    border-bottom: 0;
  }

  .reviews-scroller {
    grid-auto-columns: 82%;
  }

  .faq-wrap {
    padding: 8px 20px;
  }

  .cta-box {
    grid-template-columns: 1fr;
    padding: 36px 24px;
  }

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

  .footer-bottom {
    flex-direction: column;
    text-align: center;
    padding: 26px 0;
  }
}

@media (max-width: 520px) {
  .topbar {
    display: none;
  }

  .nav-inner {
    min-height: 60px;
  }

  .brand-mark {
    width: 34px;
    height: 34px;
    border-radius: 10px;
  }

  .brand-name strong {
    font-size: 0.88rem;
  }

  .nav-pill {
    overflow-x: auto;
    scrollbar-width: none;
  }

  .nav-pill::-webkit-scrollbar {
    display: none;
  }

  .nav-item {
    padding: 0 10px;
    min-height: 32px;
    font-size: 0.8rem;
  }

  .stat-panel {
    grid-template-columns: 1fr;
  }

  .stat-box {
    border-right: 0;
    border-bottom: 1px solid var(--border);
  }

  .stat-box:last-child {
    border-bottom: 0;
  }

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

  .reviews-scroller {
    grid-auto-columns: 88%;
  }

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

@media (max-width: 1024px) {
  .nav-pill {
    overflow-x: auto;
    scrollbar-width: none;
  }
}

/* roulang page: category1 */
:root {
  --brand: #E44D26;
  --brand-dark: #C23B14;
  --secure: #0F9D7A;
  --ink: #0F1923;
  --ink-soft: #1E2A33;
  --text: #1E2A33;
  --text-sub: #4C5A66;
  --text-faint: #8A97A3;
  --border: #DDE2E2;
  --warn: #D98726;
  --bg-soft: #F5F3EF;
  --bg-white: #FFFFFF;
  --card-radius: 16px;
  --img-radius: 12px;
  --btn-radius: 10px;
  --chip-radius: 100px;
  --shadow-card: 0 2px 12px rgba(15,25,35,0.06);
  --shadow-hover: 0 16px 28px rgba(15,25,35,0.10);
  --container: 1200px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg-soft);
  color: var(--text);
  font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;
  font-size: 16px;
  line-height: 1.9;
  -webkit-font-smoothing: antialiased;
}
body, h1, h2, h3, p, ul, ol, figure, blockquote, dl, dd { margin: 0; }
ul, ol { padding: 0; list-style: none; }
a { color: inherit; text-decoration: none; transition: color .2s ease, background-color .2s ease, border-color .2s ease, box-shadow .2s ease, transform .2s ease; }
img { display: block; max-width: 100%; }
button { font: inherit; border: 0; background: none; cursor: pointer; }
input, textarea { font: inherit; }
a:focus-visible, button:focus-visible, summary:focus-visible, input:focus-visible, textarea:focus-visible {
  outline: 2px solid var(--brand);
  outline-offset: 3px;
  border-radius: 6px;
}
.container {
  width: min(var(--container), 100% - 40px);
  margin: 0 auto;
}
.container-wide { width: 100%; }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 48px;
  padding: 0 22px;
  border-radius: var(--btn-radius);
  font-weight: 700;
  font-size: 15px;
  line-height: 1;
  white-space: nowrap;
  border: 1px solid transparent;
  transition: background .2s ease, border-color .2s ease, color .2s ease, box-shadow .2s ease, transform .15s ease;
}
.btn-primary { background: var(--brand); color: #fff; }
.btn-primary:hover { background: var(--brand-dark); color: #fff; box-shadow: 0 10px 22px rgba(228,77,38,.25); }
.btn-ghost { background: transparent; border-color: rgba(255,255,255,.65); color: #fff; }
.btn-ghost:hover { background: rgba(255,255,255,.14); border-color: #fff; color: #fff; }
.btn-light { background: #fff; color: var(--ink); }
.btn-light:hover { background: #f2ede7; color: var(--ink); }
.btn-success { background: var(--secure); color: #fff; }
.btn-success:hover { background: #0a8368; color: #fff; }
.btn-sm { height: 40px; padding: 0 16px; font-size: 14px; gap: 6px; }
.btn:active { transform: translateY(1px); }

/* Site Header */
.site-header { background: var(--ink); color: #fff; }
.topbar {
  height: 36px;
  background: #0B1218;
  border-bottom: 1px solid rgba(255,255,255,.06);
  display: flex;
  align-items: center;
}
.topbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  height: 100%;
}
.safe-tip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: rgba(255,255,255,.8);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.dot {
  width: 8px;
  height: 8px;
  flex: 0 0 8px;
  border-radius: 50%;
  background: #1DBB8C;
  box-shadow: 0 0 0 4px rgba(29,187,140,.18);
}
.topbar-link { font-size: 13px; color: rgba(255,255,255,.7); flex: 0 0 auto; }
.topbar-link:hover { color: #fff; }

.main-nav { position: sticky; top: 0; z-index: 60; background: var(--ink); }
.nav-inner {
  display: flex;
  align-items: center;
  gap: 22px;
  min-height: 72px;
  padding-top: 10px;
  padding-bottom: 10px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: #fff;
  flex: 0 0 auto;
}
.brand-mark {
  width: 40px;
  height: 40px;
  flex: 0 0 40px;
  display: grid;
  place-items: center;
  border-radius: 11px;
  background: linear-gradient(140deg, #E44D26, #C23B14);
  color: #fff;
  box-shadow: 0 6px 14px rgba(228,77,38,.28);
}
.brand-mark svg { width: 23px; height: 23px; }
.brand-name { display: flex; flex-direction: column; line-height: 1.2; }
.brand-name strong { font-size: 18px; letter-spacing: .2px; font-weight: 800; }
.brand-name small { font-size: 12px; color: rgba(255,255,255,.7); letter-spacing: 2px; }

.nav-links { flex: 1 1 auto; min-width: 0; }
.nav-pill {
  display: inline-flex;
  align-items: center;
  gap: 2px;
  background: rgba(255,255,255,.08);
  border-radius: 100px;
  padding: 4px;
  max-width: 100%;
}
.nav-item {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 36px;
  padding: 0 16px;
  border-radius: 100px;
  color: rgba(255,255,255,.78);
  font-size: 14px;
  font-weight: 600;
  white-space: nowrap;
}
.nav-item:hover { color: #fff; background: rgba(255,255,255,.08); }
.nav-item.active { background: #fff; color: var(--ink); }
.nav-cta { flex: 0 0 auto; }
.nav-cta .btn svg { width: 18px; height: 18px; }
.nav-cta .btn-sm { height: 40px; }

/* Sections */
.section { padding: 96px 0; }
.section-head { max-width: 760px; margin: 0 auto 48px; text-align: center; }
.section-kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 5px 14px;
  border-radius: 100px;
  background: rgba(228,77,38,.10);
  color: var(--brand);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .3px;
}
.section-title {
  font-size: clamp(1.6rem, 2.6vw, 2.1rem);
  line-height: 1.35;
  font-weight: 800;
  color: var(--ink-soft);
  margin: 16px 0 10px;
}
.section-desc { color: var(--text-sub); font-size: 16px; }
.section-light { background: var(--bg-white); }
.section-tint { background: #F8F4EF; }

/* Inner Page Hero */
.page-hero {
  position: relative;
  padding: 76px 0 70px;
  color: #fff;
  background: linear-gradient(112deg, rgba(15,25,35,.96) 0%, rgba(15,25,35,.86) 46%, rgba(26,46,58,.78) 100%), url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  overflow: hidden;
}
.page-hero .container { position: relative; z-index: 2; }
.page-hero__inner { max-width: 860px; }
.hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 15px;
  border-radius: 100px;
  background: rgba(255,255,255,.12);
  color: rgba(255,255,255,.9);
  font-size: 13px;
  font-weight: 600;
  border: 1px solid rgba(255,255,255,.16);
}
.page-hero h1 {
  font-size: clamp(2rem, 4vw, 3rem);
  line-height: 1.28;
  font-weight: 800;
  margin: 18px 0 14px;
  letter-spacing: .2px;
}
.page-hero .hero-lead {
  max-width: 720px;
  color: rgba(255,255,255,.82);
  font-size: 16px;
  line-height: 1.9;
  margin-bottom: 32px;
}
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; }

/* Stats strip */
.stats-strip { background: #fff; border-bottom: 1px solid var(--border); }
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  padding: 28px 0;
}
.stat-item { display: flex; align-items: center; gap: 16px; }
.stat-item + .stat-item { border-left: 1px solid var(--border); padding-left: 20px; }
.stat-icon {
  width: 46px; height: 46px; flex: 0 0 46px;
  display: grid; place-items: center;
  border-radius: 14px;
  background: rgba(15,157,122,.12);
  color: var(--secure);
}
.stat-icon svg { width: 23px; height: 23px; }
.stat-value { font-weight: 800; color: var(--ink); font-size: 22px; line-height: 1.2; }
.stat-label { font-size: 13px; color: var(--text-sub); margin-top: 2px; }

/* Download channel list */
.channel-wrap { margin: 0 auto; }
.channel-hint {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 16px 18px;
  border-radius: 14px;
  border: 1px solid #d9e7e2;
  background: #EDF7F3;
  color: #1E4C40;
  margin-bottom: 24px;
  line-height: 1.7;
  font-size: 14.5px;
}
.channel-hint svg { width: 20px; height: 20px; flex: 0 0 20px; margin-top: 2px; }
.channel-list { background: #fff; border: 1px solid var(--border); border-radius: 20px; box-shadow: var(--shadow-card); overflow: hidden; }
.release-row {
  display: grid;
  grid-template-columns: minmax(190px, 1.1fr) minmax(190px, .85fr) auto;
  gap: 22px;
  align-items: center;
  padding: 34px 30px;
  border-bottom: 1px solid var(--border);
  position: relative;
  transition: background .2s ease;
}
.release-row:last-child { border-bottom: 0; }
.release-row:hover { background: #FBF8F5; }
.platform-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px; height: 48px;
  border-radius: 50%;
  font-size: 14px;
  font-weight: 800;
  color: #fff;
  background: var(--ink);
  letter-spacing: 1px;
}
.platform-badge.green { background: var(--secure); }
.platform-badge.orange { background: var(--brand); }
.platform-head { display: flex; align-items: center; gap: 14px; min-width: 0; }
.platform-head h3 {
  font-size: 17px;
  font-weight: 750;
  color: var(--ink);
  line-height: 1.4;
}
.platform-text { min-width: 0; }
.meta-line { display: flex; flex-wrap: wrap; gap: 6px 16px; font-size: 13px; color: var(--text-sub); margin-top: 5px; }
.release-specs { display: flex; flex-direction: column; gap: 4px; }
.spec-line { display: flex; gap: 8px; font-size: 14px; color: var(--text-sub); line-height: 1.8; }
.spec-line strong { color: var(--ink); font-weight: 650; }
.release-right { text-align: right; display: flex; flex-direction: column; align-items: flex-end; gap: 12px; }
.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12.5px;
  font-weight: 700;
  color: var(--secure);
  background: rgba(15,157,122,.12);
  border-radius: 100px;
  padding: 4px 11px;
  white-space: nowrap;
}
.status-badge.warn { color: #C46C1A; background: rgba(217,135,38,.14); }
.status-badge.blue { color: #236B9E; background: rgba(40,113,160,.12); }
.status-badge::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: currentColor; }
.release-right .btn { width: 126px; }

/* Verify block */
.verify-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 56px;
  align-items: center;
  margin-top: 16px;
}
.verify-media {
  border-radius: 24px;
  overflow: hidden;
  background: var(--ink);
  box-shadow: 0 24px 50px rgba(15,25,35,.2);
}
.verify-media img { width: 100%; aspect-ratio: 4/3; object-fit: cover; }
.verify-content h3 { font-size: clamp(1.4rem, 2vw, 1.85rem); line-height: 1.45; color: var(--ink); }
.verify-content .lead { color: var(--text-sub); margin: 16px 0 24px; }
.verify-list { display: flex; flex-direction: column; gap: 14px; }
.verify-item { display: flex; gap: 14px; background: #fff; border: 1px solid var(--border); border-radius: 14px; padding: 16px 18px; box-shadow: var(--shadow-card); }
.verify-item svg { flex: 0 0 22px; width: 22px; height: 22px; color: var(--secure); margin-top: 3px; }
.verify-item strong { display: block; font-size: 15.5px; color: var(--ink); }
.verify-item span { font-size: 14px; color: var(--text-sub); }

/* Steps */
.steps-list { display: grid; margin-top: 40px; grid-template-columns: repeat(2, 1fr); gap: 22px; counter-reset: steps; }
.step-card {
  position: relative;
  counter-increment: steps;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--card-radius);
  padding: 26px;
  box-shadow: var(--shadow-card);
  transition: transform .2s ease, box-shadow .2s ease;
}
.step-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-hover); }
.step-card:nth-child(1) { counter-reset: steps; }
.step-num { position: absolute; right: 22px; top: 14px; font-size: 34px; font-weight: 800; color: rgba(228,77,38,.13); font-family: Bahnschrift, "DIN Alternate", sans-serif; line-height: 1; }
.step-count {
  display: inline-grid;
  place-items: center;
  width: 34px; height: 34px;
  border-radius: 10px;
  font-size: 14px;
  font-weight: 750;
  background: var(--brand);
  color: #fff;
  margin-bottom: 18px;
}
.step-card h3 { font-size: 17px; color: var(--ink); margin-bottom: 8px; }
.step-card p { color: var(--text-sub); font-size: 14.5px; }
.step-card.secure .step-count { background: var(--secure); }
.warn-note {
  margin-top: 30px;
  background: #FFF7EC;
  border: 1px solid #F0D8B8;
  border-radius: 16px;
  padding: 20px 22px;
  display: flex;
  gap: 14px;
  line-height: 1.8;
  color: #7A4B1C;
  font-size: 15px;
}
.warn-note svg { flex: 0 0 22px; width: 22px; height: 22px; color: var(--warn); margin-top: 3px; }

/* FAQ */
.faq-wrap { max-width: 760px; margin: 0 auto; }
.faq-item { border-bottom: 1px solid var(--border); }
.faq-item:first-child { border-top: 1px solid var(--border); }
.faq-item summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  list-style: none;
  cursor: pointer;
  padding: 22px 4px;
  font-size: 16px;
  font-weight: 700;
  color: var(--ink);
  line-height: 1.6;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-icon {
  flex: 0 0 28px;
  width: 28px; height: 28px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  border: 2px solid var(--border);
  color: var(--brand);
  font-size: 18px;
  font-weight: 500;
  line-height: 1;
  transition: transform .25s ease, background .25s ease, color .25s ease, border-color .25s ease;
}
.faq-item[open] .faq-icon { transform: rotate(45deg); background: var(--brand); color: #fff; border-color: var(--brand); }
.faq-answer { padding: 0 40px 26px 4px; color: var(--text-sub); font-size: 15px; line-height: 1.9; }

/* CTA */
.cta-panel {
  position: relative;
  overflow: hidden;
  border-radius: 24px;
  background: linear-gradient(120deg, #0F1923, #172A37);
  color: #fff;
  padding: 56px 56px;
  display: grid;
  grid-template-columns: 1.2fr auto;
  gap: 32px;
  align-items: center;
}
.cta-panel::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: radial-gradient(circle at 82% 20%, rgba(228,77,38,.25), transparent 42%);
}
.cta-panel > * { position: relative; z-index: 1; }
.cta-panel h2 { font-size: clamp(1.5rem, 2vw, 1.9rem); font-weight: 800; margin-bottom: 12px; line-height: 1.4; }
.cta-panel p { color: rgba(255,255,255,.76); max-width: 620px; }
.cta-actions { display: flex; gap: 12px; flex-wrap: wrap; }

/* Footer */
.footer { background: #0C151D; color: rgba(255,255,255,.78); padding: 72px 0 0; margin-top: 0; }
.footer-grid { display: grid; grid-template-columns: 1.7fr 1fr 1fr 1.2fr; gap: 42px; padding-bottom: 48px; }
.footer-brand .brand { margin-bottom: 18px; }
.footer-brand p { font-size: 14px; color: rgba(255,255,255,.66); max-width: 360px; }
.footer-head { display: block; font-size: 14px; font-weight: 750; color: #fff; letter-spacing: .4px; margin-bottom: 16px; }
.footer-list li { margin-bottom: 10px; }
.footer-list a { font-size: 14px; color: rgba(255,255,255,.67); }
.footer-list a:hover { color: #fff; padding-left: 3px; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.1);
  padding: 22px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  font-size: 13px;
  color: rgba(255,255,255,.55);
}
.footer-domain { color: rgba(255,255,255,.85); font-family: Bahnschrift, "DIN Alternate", sans-serif; }

/* Responsive */
@media (max-width: 1180px) {
  .release-row { grid-template-columns: 1fr auto; gap: 20px; }
  .release-specs { grid-column: 1 / -1; display: grid; grid-template-columns: repeat(3, 1fr); gap: 6px 18px; }
}
@media (max-width: 1024px) {
  .section { padding: 80px 0; }
  .nav-inner { gap: 14px; }
  .brand-name small { display: none; }
  .nav-item { padding: 0 12px; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
  .stat-item:nth-child(3) { border-left: 0; padding-left: 0; }
  .verify-grid { grid-template-columns: 1fr; gap: 36px; }
  .cta-panel { grid-template-columns: 1fr; padding: 40px; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 36px; }
}
@media (max-width: 900px) {
  .main-nav { position: relative; }
  .nav-inner { flex-wrap: wrap; gap: 8px; }
  .nav-links { flex: 0 0 100%; }
  .nav-pill { width: 100%; overflow-x: auto; scrollbar-width: none; border-radius: 12px; }
  .nav-pill::-webkit-scrollbar { display: none; }
}
@media (max-width: 768px) {
  .page-hero { padding: 50px 0; }
  .section { padding: 66px 0; }
  .topbar .container { gap: 10px; }
  .safe-tip span:last-child { display: none; }
  .stats-grid { grid-template-columns: 1fr 1fr; gap: 0; }
  .stat-item { flex-direction: column; align-items: flex-start; gap: 10px; padding: 18px 8px; }
  .stat-item + .stat-item { border-left: 0; }
  .stat-value { font-size: 20px; }
  .steps-list { grid-template-columns: 1fr; gap: 16px; }
  .release-row { display: flex; flex-direction: column; align-items: flex-start; padding: 26px 20px; }
  .release-right { flex-direction: row; align-items: center; justify-content: space-between; width: 100%; }
  .release-right .btn { width: auto; }
  .spec-line { flex-direction: column; gap: 0; margin-bottom: 12px; }
  .release-specs { grid-template-columns: 1fr; }
  .cta-panel { padding: 32px 24px; }
  .cta-actions .btn { width: 100%; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; align-items: flex-start; }
  .faq-answer { padding-right: 0; }
  .page-hero { background-position: 20% center; }
}
@media (max-width: 520px) {
  .container { width: calc(100% - 28px); }
  .brand-name strong { font-size: 16px; }
  .brand-mark { width: 34px; height: 34px; }
  .main-nav { top: 0; }
  .btn { width: 100%; }
  .hero-actions .btn { width: 100%; }
  .stats-grid { grid-template-columns: 1fr; }
  .page-hero h1 { font-size: 25px; }
  .section-title { font-size: 22px; }
  .verify-media img { aspect-ratio: 3/4; }
  .release-right { flex-direction: column; align-items: stretch; }
  .release-right .btn { width: 100%; }
  .faq-item summary { font-size: 15px; }
  .section-head { margin-bottom: 32px; }
}

/* roulang page: article */
:root {
  --orange: #e44d26;
  --orange-dark: #c23b14;
  --green: #0f9d7a;
  --green-dark: #0c8567;
  --bg: #f5f3ef;
  --ink: #0f1923;
  --footer-bg: #0c151d;
  --text: #1e2a33;
  --text-sub: #4c5a66;
  --muted: #8a97a3;
  --border: #dde2e2;
  --warn: #d98726;
  --card-radius: 16px;
  --image-radius: 12px;
  --btn-radius: 10px;
  --shadow-card: 0 2px 12px rgba(15, 25, 35, 0.06);
  --shadow-hover: 0 16px 28px rgba(15, 25, 35, 0.1);
  --transition: all .25s ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: system-ui, -apple-system, "PingFang SC", "HarmonicOS Sans SC", "Microsoft YaHei", sans-serif;
  font-size: 1rem;
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

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

button,
input {
  font-family: inherit;
}

:focus-visible {
  outline: 2px solid var(--green);
  outline-offset: 3px;
  border-radius: 6px;
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding-left: 20px;
  padding-right: 20px;
}

.site-header {
  position: relative;
  z-index: 30;
  background: var(--ink);
}

.topbar {
  height: 36px;
  background: rgba(0, 0, 0, 0.24);
  border-bottom: 1px solid rgba(255, 255, 255, 0.07);
  color: rgba(255, 255, 255, 0.76);
  font-size: 0.8rem;
}

.topbar .container {
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.safe-tip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-width: 0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.safe-tip .dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 0 3px rgba(15, 157, 122, 0.24);
  flex: 0 0 auto;
}

.topbar-link {
  color: rgba(255, 255, 255, 0.92);
  white-space: nowrap;
  transition: color .2s ease;
}

.topbar-link:hover {
  color: #ffe3cb;
}

.main-nav {
  background: var(--ink);
  box-shadow: 0 6px 18px rgba(15, 25, 35, 0.14);
}

.nav-inner {
  display: flex;
  align-items: center;
  gap: 18px;
  min-height: 72px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: #fff;
  flex: 0 0 auto;
}

.brand-mark {
  width: 42px;
  height: 42px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.12);
  color: var(--orange);
  transition: var(--transition);
}

.brand:hover .brand-mark {
  background: rgba(228, 77, 38, 0.18);
}

.brand-name {
  display: flex;
  flex-direction: column;
  line-height: 1.3;
}

.brand-name strong {
  font-size: 1.05rem;
  font-weight: 800;
  letter-spacing: 0.02em;
  color: #fff;
}

.brand-name small {
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  color: rgba(255, 255, 255, 0.58);
}

.nav-links {
  flex: 1 1 auto;
  min-width: 0;
  display: flex;
  justify-content: center;
}

.nav-pill {
  display: flex;
  align-items: center;
  gap: 4px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 14px;
  padding: 4px;
}

.nav-item {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 40px;
  padding: 0 18px;
  border-radius: 10px;
  font-size: 0.9rem;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.72);
  white-space: nowrap;
  transition: var(--transition);
}

.nav-item:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.1);
}

.nav-item.active {
  background: var(--orange);
  color: #fff;
  box-shadow: 0 6px 14px rgba(228, 77, 38, 0.28);
}

.nav-cta {
  flex: 0 0 auto;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border: 0;
  border-radius: var(--btn-radius);
  font-weight: 700;
  font-size: 0.95rem;
  line-height: 1;
  cursor: pointer;
  transition: var(--transition);
  text-align: center;
}

.btn svg {
  flex: 0 0 auto;
}

.btn-primary {
  background: var(--orange);
  color: #fff;
  box-shadow: 0 8px 18px rgba(228, 77, 38, 0.24);
}

.btn-primary:hover {
  background: var(--orange-dark);
  box-shadow: 0 12px 22px rgba(194, 59, 20, 0.28);
  transform: translateY(-2px);
}

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

.btn-sm {
  min-height: 44px;
  padding: 0 20px;
}

.btn-lg {
  min-height: 52px;
  padding: 0 28px;
  font-size: 1rem;
}

.btn-outline {
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.35);
  color: #fff;
}

.btn-outline:hover {
  border-color: rgba(255, 255, 255, 0.8);
  background: rgba(255, 255, 255, 0.08);
}

.article-hero {
  position: relative;
  background-color: var(--ink);
  background-image: linear-gradient(97deg, rgba(15, 25, 35, 0.95), rgba(15, 25, 35, 0.78) 52%, rgba(228, 77, 38, 0.24)), url('/assets/images/backpic/back-2.png');
  background-size: cover;
  background-position: center 32%;
  padding: 52px 0 68px;
  color: #fff;
  border-bottom: 3px solid var(--orange);
}

.article-breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: 0.84rem;
  color: rgba(255, 255, 255, 0.58);
  margin-bottom: 30px;
}

.article-breadcrumb a {
  color: rgba(255, 255, 255, 0.78);
  transition: color .2s ease;
}

.article-breadcrumb a:hover {
  color: #ffb69b;
}

.article-breadcrumb .sep {
  color: rgba(255, 255, 255, 0.35);
}

.article-breadcrumb .crumb-current {
  color: rgba(255, 255, 255, 0.92);
  max-width: 540px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.article-hero .inner {
  max-width: 900px;
}

.article-cat {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.14);
  color: #fff;
  border-radius: 100px;
  padding: 7px 15px;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  margin-bottom: 16px;
}

.article-cat::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #ffb35c;
}

.article-title {
  margin: 0 0 18px;
  font-size: clamp(1.8rem, 3.4vw, 2.75rem);
  font-weight: 800;
  line-height: 1.35;
  letter-spacing: -0.02em;
  color: #fff;
  text-wrap: balance;
  max-width: 820px;
}

.article-summary {
  margin: 0 0 24px;
  max-width: 780px;
  font-size: 1rem;
  line-height: 1.9;
  color: rgba(255, 255, 255, 0.78);
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 14px 26px;
  color: rgba(255, 255, 255, 0.62);
  font-size: 0.85rem;
}

.meta-item {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  white-space: nowrap;
}

.meta-item svg {
  width: 16px;
  height: 16px;
  opacity: 0.82;
}

.article-section {
  padding: 0 0 70px;
  background: var(--bg);
}

.article-sheet {
  position: relative;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 22px;
  box-shadow: var(--shadow-card);
  margin-top: -34px;
  overflow: hidden;
}

.article-inner {
  max-width: 800px;
  margin: 0 auto;
  padding: 60px 44px 46px;
}

.article-body {
  font-size: clamp(1rem, 1vw, 1.06rem);
  color: var(--text);
}

.article-body > * + * {
  margin-top: 1.2em;
}

.article-body p {
  margin: 1.25em 0;
  line-height: 1.9;
}

.article-body h2 {
  font-size: clamp(1.35rem, 2.2vw, 1.65rem);
  font-weight: 750;
  line-height: 1.45;
  margin: 2.1em 0 0.8em;
  padding-bottom: 0.45em;
  border-bottom: 2px solid rgba(228, 77, 38, 0.16);
  letter-spacing: -0.01em;
}

.article-body h3 {
  font-size: clamp(1.12rem, 1.4vw, 1.28rem);
  font-weight: 700;
  line-height: 1.5;
  margin: 1.8em 0 0.65em;
}

.article-body h4 {
  font-size: 1.05rem;
  font-weight: 700;
  margin: 1.5em 0 0.5em;
}

.article-body a:not(.btn) {
  color: var(--orange-dark);
  text-decoration: underline;
  text-decoration-color: rgba(194, 59, 20, 0.3);
  text-underline-offset: 4px;
  transition: text-decoration-color .2s ease, color .2s ease;
}

.article-body a:not(.btn):hover {
  color: var(--orange);
  text-decoration-color: rgba(228, 77, 38, 0.8);
}

.article-body ul,
.article-body ol {
  margin: 1.3em 0;
  padding-left: 1.5em;
}

.article-body li {
  margin: 0.55em 0;
  line-height: 1.85;
}

.article-body blockquote {
  margin: 1.8em 0;
  padding: 18px 22px;
  background: #f6f1ea;
  border-left: 4px solid var(--orange);
  border-radius: 0 14px 14px 0;
  color: var(--text-sub);
}

.article-body blockquote p {
  margin: 0;
}

.article-body img,
.article-body video {
  width: 100%;
  border-radius: var(--image-radius);
  margin: 1.9em 0;
  box-shadow: 0 12px 28px rgba(15, 25, 35, 0.12);
}

.article-body figure {
  margin: 1.8em 0;
}

.article-body figure img {
  margin-bottom: 0.6em;
}

.article-body figcaption {
  text-align: center;
  font-size: 0.84rem;
  color: var(--muted);
}

.article-body pre {
  background: var(--ink);
  color: #f1e9e1;
  border-radius: 14px;
  padding: 20px;
  overflow: auto;
  font-size: 0.9rem;
  line-height: 1.7;
  margin: 1.8em 0;
}

.article-body code {
  font-family: "DIN Alternate", "Bahnschrift", Consolas, "Courier New", monospace;
  background: rgba(15, 157, 122, 0.09);
  color: #0b7c61;
  border-radius: 6px;
  padding: 2px 7px;
  font-size: 0.9em;
}

.article-body pre code {
  background: transparent;
  color: inherit;
  padding: 0;
  border-radius: 0;
}

.article-body table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.8em 0;
  font-size: 0.92rem;
}

.article-body th,
.article-body td {
  border: 1px solid var(--border);
  padding: 11px 14px;
  text-align: left;
  line-height: 1.6;
}

.article-body th {
  background: #f7f4ef;
  font-weight: 700;
}

.article-body hr {
  margin: 2.4em 0;
  border: 0;
  height: 1px;
  background: #e5e6e6;
}

.article-body .notice,
.article-body .warning,
.article-body .tip {
  border-radius: 14px;
  padding: 17px 20px;
  margin: 1.7em 0;
  line-height: 1.75;
}

.article-body .notice {
  background: rgba(15, 157, 122, 0.08);
  border: 1px solid rgba(15, 157, 122, 0.22);
  color: #086447;
}

.article-body .warning {
  background: rgba(217, 135, 38, 0.1);
  border: 1px solid rgba(217, 135, 38, 0.3);
  color: #7a4b0e;
}

.article-body .tip {
  background: rgba(15, 25, 35, 0.04);
  border: 1px solid var(--border);
}

.post-guide-cta {
  display: flex;
  align-items: center;
  gap: 18px;
  background: linear-gradient(120deg, var(--ink) 0%, #172230 100%);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 18px;
  padding: 20px 22px;
  color: #fff;
  margin: 42px 0 12px;
  flex-wrap: wrap;
}

.cta-icon {
  width: 50px;
  height: 50px;
  border-radius: 14px;
  background: rgba(228, 77, 38, 0.2);
  border: 1px solid rgba(228, 77, 38, 0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #ffb69b;
  flex: 0 0 auto;
}

.cta-body {
  flex: 1 1 220px;
  min-width: 200px;
}

.cta-body strong {
  display: block;
  font-size: 1rem;
  margin-bottom: 4px;
}

.cta-body span {
  font-size: 0.86rem;
  color: rgba(255, 255, 255, 0.64);
  line-height: 1.6;
}

.article-tags {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  margin: 40px 0 0;
  padding-top: 24px;
  border-top: 1px solid #eaebea;
}

.tags-head {
  color: var(--muted);
  font-size: 0.86rem;
  font-weight: 600;
}

.tag {
  display: inline-flex;
  align-items: center;
  border-radius: 100px;
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text-sub);
  padding: 7px 15px;
  font-size: 0.8rem;
  font-weight: 600;
  transition: var(--transition);
}

.tag:hover {
  background: rgba(228, 77, 38, 0.08);
  border-color: rgba(228, 77, 38, 0.32);
  color: var(--orange-dark);
}

.related-panel {
  max-width: 1200px;
  margin: 52px auto 0;
}

.related-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin: 0 auto 22px;
  padding: 0 6px;
}

.related-head h2 {
  margin: 0;
  font-size: clamp(1.3rem, 2.2vw, 1.65rem);
  font-weight: 750;
}

.related-head .more-link {
  color: var(--orange-dark);
  font-size: 0.88rem;
  font-weight: 700;
  transition: color .2s ease;
}

.related-head .more-link:hover {
  color: var(--orange);
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

.related-card {
  display: flex;
  flex-direction: column;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--card-radius);
  box-shadow: var(--shadow-card);
  overflow: hidden;
  transition: var(--transition);
}

.related-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-3px);
}

.card-figure {
  position: relative;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background: #edf0f0;
}

.card-figure img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.card-figure::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 62%, rgba(15, 25, 35, 0.24));
}

.card-label {
  position: absolute;
  left: 12px;
  top: 12px;
  z-index: 1;
  background: rgba(15, 25, 35, 0.74);
  backdrop-filter: blur(4px);
  color: #fff;
  font-size: 0.76rem;
  font-weight: 600;
  border-radius: 100px;
  padding: 5px 12px;
  letter-spacing: 0.05em;
}

.related-card-body {
  padding: 18px 20px 20px;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.related-card-body h3 {
  margin: 0 0 8px;
  font-size: 1rem;
  font-weight: 700;
  line-height: 1.55;
}

.related-card-body p {
  margin: 0 0 16px;
  color: var(--text-sub);
  font-size: 0.88rem;
  line-height: 1.7;
  flex: 1;
}

.card-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--orange-dark);
  font-weight: 700;
  font-size: 0.86rem;
  transition: color .2s ease;
}

.card-link:hover {
  color: var(--orange);
}

.card-link::after {
  content: "→";
  transition: transform .2s ease;
}

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

.missing-page {
  padding: 84px 0 100px;
}

.missing-card {
  max-width: 600px;
  margin: 0 auto;
  text-align: center;
  background: #fff;
  border: 1px dashed var(--border);
  border-radius: 22px;
  box-shadow: var(--shadow-card);
  padding: 54px 40px;
}

.missing-icon {
  width: 74px;
  height: 74px;
  margin: 0 auto 20px;
  border-radius: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(228, 77, 38, 0.08);
  color: var(--orange);
}

.missing-card h1 {
  margin: 0 0 12px;
  font-size: 1.7rem;
  font-weight: 800;
}

.missing-card p {
  margin: 0 0 26px;
  color: var(--text-sub);
  line-height: 1.8;
}

.footer {
  background: var(--footer-bg);
  color: rgba(255, 255, 255, 0.64);
  padding: 62px 0 0;
}

.footer a {
  color: rgba(255, 255, 255, 0.68);
  transition: color .2s ease;
}

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

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.3fr;
  gap: 38px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-brand .brand {
  color: #fff;
  margin-bottom: 14px;
}

.footer-brand p {
  margin: 14px 0 0;
  max-width: 340px;
  font-size: 0.86rem;
  line-height: 1.85;
  color: rgba(255, 255, 255, 0.54);
}

.footer-head {
  color: #fff;
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 16px;
}

.footer-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.footer-list li {
  font-size: 0.86rem;
  line-height: 1.5;
}

.footer-bottom {
  padding: 24px 0;
  display: flex;
  justify-content: space-between;
  gap: 12px 30px;
  flex-wrap: wrap;
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.4);
}

.footer-domain {
  color: rgba(255, 255, 255, 0.76);
}

@media (max-width: 1024px) {
  .nav-pill {
    overflow-x: auto;
    scrollbar-width: none;
  }
  .nav-pill::-webkit-scrollbar {
    display: none;
  }
  .nav-item {
    padding: 0 15px;
  }
  .article-sheet {
    margin-top: -28px;
  }
  .article-inner {
    padding: 52px 34px 40px;
  }
  .related-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 34px 30px;
  }
}

@media (max-width: 768px) {
  .topbar {
    font-size: 0.75rem;
  }
  .main-nav {
    position: sticky;
    top: 0;
    z-index: 50;
  }
  .nav-inner {
    min-height: 60px;
    flex-wrap: wrap;
    padding-top: 8px;
    padding-bottom: 8px;
    gap: 8px;
  }
  .brand {
    flex: 0 0 auto;
  }
  .brand-mark {
    width: 34px;
    height: 34px;
  }
  .brand-name strong {
    font-size: 0.94rem;
  }
  .brand-name small {
    font-size: 0.64rem;
  }
  .nav-cta {
    margin-left: auto;
  }
  .btn-sm {
    min-height: 38px;
    padding: 0 14px;
    font-size: 0.85rem;
  }
  .nav-links {
    order: 3;
    width: 100%;
    justify-content: flex-start;
    overflow-x: auto;
  }
  .nav-pill {
    width: max-content;
    min-width: 100%;
    border-radius: 12px;
  }
  .nav-item {
    min-height: 35px;
    font-size: 0.85rem;
    padding: 0 15px;
  }
  .article-hero {
    padding: 38px 0 54px;
  }
  .article-breadcrumb {
    margin-bottom: 22px;
  }
  .article-summary {
    font-size: 0.94rem;
  }
  .article-meta {
    gap: 10px 20px;
  }
  .article-sheet {
    margin-top: -20px;
    border-radius: 16px;
  }
  .article-inner {
    max-width: 720px;
    padding: 40px 22px 34px;
  }
  .post-guide-cta {
    padding: 18px;
  }
  .cta-icon {
    width: 44px;
    height: 44px;
  }
  .related-grid {
    grid-template-columns: 1fr;
  }
  .missing-page {
    padding: 48px 0 70px;
  }
  .missing-card {
    padding: 40px 24px;
  }
  .footer {
    padding-top: 46px;
  }
  .footer-bottom {
    flex-direction: column;
  }
}

@media (max-width: 520px) {
  .topbar .container {
    gap: 8px;
  }
  .safe-tip {
    max-width: 260px;
  }
  .brand-name strong {
    letter-spacing: 0;
  }
  .brand-name small {
    display: none;
  }
  .brand-mark {
    border-radius: 10px;
  }
  .btn-sm {
    padding: 0 12px;
    gap: 5px;
  }
  .btn-label {
    font-size: 0.82rem;
  }
  .article-title {
    font-size: 1.55rem;
  }
  .article-inner {
    padding: 30px 18px 26px;
  }
  .article-body {
    font-size: 0.98rem;
    line-height: 1.85;
  }
  .article-body h2 {
    font-size: 1.28rem;
  }
  .article-body h3 {
    font-size: 1.1rem;
  }
  .article-tags {
    gap: 8px;
  }
  .tag {
    padding: 6px 11px;
    font-size: 0.76rem;
  }
  .post-guide-cta {
    flex-direction: column;
    align-items: flex-start;
  }
  .cta-body span {
    display: block;
    max-width: 100%;
  }
  .post-guide-cta .btn {
    width: 100%;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }
}

/* roulang page: category3 */
:root {
            --primary: #E44D26;
            --primary-dark: #C23B14;
            --secondary: #0F9D7A;
            --secondary-dark: #0B7A5E;
            --bg: #F5F3EF;
            --dark-bg: #0F1923;
            --darker-bg: #0C151D;
            --card-bg: #FFFFFF;
            --text: #1E2A33;
            --text-secondary: #4C5A66;
            --text-light: #8A97A3;
            --border: #DDE2E2;
            --border-light: #EBEFEF;
            --warning: #D98726;
            --success: #0F9D7A;
            --radius: 16px;
            --radius-sm: 10px;
            --shadow: 0 2px 12px rgba(15,25,35,0.06);
            --shadow-hover: 0 16px 28px rgba(15,25,35,0.1);
            --font-main: 'Noto Sans SC', system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-main);
            line-height: 1.9;
            font-size: 1rem;
            color: var(--text);
            background-color: var(--bg);
            -webkit-font-smoothing: antialiased;
        }

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

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

        ul,
        ol {
            list-style: none;
        }

        .site-header {
            background: var(--dark-bg);
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: 0 4px 20px rgba(15, 25, 35, 0.08);
        }

        .topbar {
            background: var(--darker-bg);
            height: 36px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }

        .topbar .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
            width: 100%;
        }

        .safe-tip {
            color: rgba(255, 255, 255, 0.82);
            font-size: 0.8125rem;
            letter-spacing: 0.02em;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .dot {
            width: 6px;
            height: 6px;
            background: var(--success);
            border-radius: 50%;
            display: inline-block;
            animation: pulse 2s infinite;
        }

        @keyframes pulse {
            0%,
            100% {
                opacity: 1;
                box-shadow: 0 0 0 0 rgba(15, 157, 122, 0.7);
            }
            50% {
                opacity: 0.7;
                box-shadow: 0 0 0 5px rgba(15, 157, 122, 0);
            }
        }

        .topbar-link {
            color: rgba(255, 255, 255, 0.72);
            font-size: 0.8rem;
            transition: color 0.2s;
        }

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

        .main-nav {
            background: transparent;
        }

        .main-nav .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            gap: 16px;
        }

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

        .brand-mark {
            width: 36px;
            height: 36px;
            background: rgba(255, 255, 255, 0.12);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            border: 1px solid rgba(255, 255, 255, 0.08);
            transition: background 0.2s;
        }

        .brand:hover .brand-mark {
            background: rgba(228, 77, 38, 0.15);
        }

        .brand-mark svg {
            width: 20px;
            height: 20px;
        }

        .brand-name {
            display: flex;
            flex-direction: column;
            line-height: 1.2;
        }

        .brand-name strong {
            color: #fff;
            font-size: 1.05rem;
            font-weight: 800;
            letter-spacing: 0.02em;
        }

        .brand-name small {
            color: rgba(255, 255, 255, 0.55);
            font-size: 0.7rem;
            letter-spacing: 0.15em;
            margin-top: 2px;
        }

        .nav-links {
            flex: 1;
            display: flex;
            justify-content: center;
            overflow: hidden;
        }

        .nav-pill {
            display: flex;
            background: rgba(255, 255, 255, 0.08);
            border-radius: 100px;
            padding: 4px;
            gap: 2px;
            border: 1px solid rgba(255, 255, 255, 0.06);
            overflow-x: auto;
            scrollbar-width: none;
            max-width: 100%;
        }

        .nav-pill::-webkit-scrollbar {
            display: none;
        }

        .nav-item {
            color: rgba(255, 255, 255, 0.72);
            font-size: 0.9rem;
            font-weight: 500;
            padding: 8px 20px;
            border-radius: 100px;
            white-space: nowrap;
            transition: all 0.25s;
        }

        .nav-item:hover {
            color: #fff;
            background: rgba(255, 255, 255, 0.08);
        }

        .nav-item.active {
            background: var(--primary);
            color: #fff;
            font-weight: 600;
            box-shadow: 0 2px 8px rgba(228, 77, 38, 0.3);
        }

        .nav-cta {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            border-radius: var(--radius-sm);
            font-family: var(--font-main);
            font-weight: 600;
            border: none;
            cursor: pointer;
            transition: all 0.25s ease;
            line-height: 1;
            white-space: nowrap;
            font-size: 0.95rem;
            height: 48px;
            padding: 0 22px;
        }

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

        .btn-sm {
            height: 38px;
            padding: 0 16px;
            font-size: 0.875rem;
            border-radius: 8px;
        }

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

        .btn-primary:hover {
            background: var(--primary-dark);
            transform: translateY(-1px);
            box-shadow: 0 4px 14px rgba(228, 77, 38, 0.35);
        }

        .btn-primary:active {
            transform: translateY(1px);
            box-shadow: none;
        }

        .btn-secondary {
            background: transparent;
            border: 1.5px solid rgba(255, 255, 255, 0.35);
            color: rgba(255, 255, 255, 0.85);
        }

        .btn-secondary:hover {
            border-color: #fff;
            color: #fff;
            background: rgba(255, 255, 255, 0.06);
            transform: translateY(-1px);
            box-shadow: 0 8px 18px rgba(15, 25, 35, 0.35);
        }

        .btn-outline {
            background: transparent;
            border: 1.5px solid var(--primary);
            color: var(--primary);
        }

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

        .hero-banner {
            background: var(--dark-bg);
            position: relative;
            padding: 88px 0 76px;
            overflow: hidden;
            border-bottom: 1px solid rgba(255, 255, 255, 0.04);
        }

        .hero-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(120deg, rgba(15, 25, 35, 0.98) 10%, rgba(15, 25, 35, 0.82) 60%, rgba(228, 77, 38, 0.15) 100%);
            z-index: 1;
        }

        .hero-banner::after {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            opacity: 0.12;
            z-index: 0;
        }

        .hero-banner .container {
            position: relative;
            z-index: 2;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        .hero-banner .tagline-pill {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(228, 77, 38, 0.18);
            border: 1px solid rgba(228, 77, 38, 0.3);
            padding: 2px 10px;
            border-radius: 100px;
            font-size: 0.75rem;
            color: #f4d7cd;
            margin-bottom: 20px;
        }

        .hero-banner h1 {
            color: #fff;
            font-size: clamp(2rem, 4vw, 3rem);
            line-height: 1.4;
            font-weight: 800;
            letter-spacing: -0.01em;
            margin-bottom: 18px;
        }

        .hero-banner h1 span {
            color: var(--primary);
            background: rgba(228, 77, 38, 0.12);
            padding: 0 8px;
            border-radius: 6px;
            display: inline-block;
        }

        .hero-banner .lead {
            color: rgba(255, 255, 255, 0.76);
            font-size: 1.05rem;
            max-width: 480px;
            margin-bottom: 26px;
        }

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

        .hero-panel {
            position: relative;
            z-index: 2;
            max-width: 1200px;
            margin: 0 auto;
            padding: 28px 20px 0;
        }

        .hero-metrics {
            max-width: 1200px;
            margin: 0 auto;
            padding: 28px 20px 0;
            display: grid;
            grid-template-columns: repeat(3, minmax(0, 1fr));
            gap: 16px;
            position: relative;
            z-index: 2;
        }

        .metric-item {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 8px;
            padding: 14px 18px;
            display: flex;
            align-items: center;
            gap: 12px;
            backdrop-filter: blur(6px);
        }

        .metric-icon {
            width: 36px;
            height: 36px;
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            background: rgba(255, 255, 255, 0.1);
            color: var(--primary);
            flex-shrink: 0;
        }

        .metric-text {
            color: rgba(255, 255, 255, 0.85);
        }

        .metric-text strong {
            display: block;
            font-size: 1.25rem;
            line-height: 1.2;
            font-weight: 700;
            color: #fff;
        }

        .metric-text span {
            font-size: 0.78rem;
            color: rgba(255, 255, 255, 0.5);
        }

        .hero-wrap {
            display: flex;
            align-items: center;
            gap: 48px;
        }

        .hero-visual {
            position: relative;
            z-index: 2;
            flex-shrink: 0;
            display: flex;
            justify-content: center;
            align-items: center;
            width: 300px;
            height: 360px;
            display: none;
        }

        .hero-visual img {
            border-radius: 12px;
            border: 1px solid rgba(255, 255, 255, 0.1);
            box-shadow: 0 24px 60px rgba(0, 0, 0, 0.35);
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        .main {
            background: var(--bg);
        }

        .section {
            padding: 92px 0;
        }

        .section-head {
            margin-bottom: 40px;
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: wrap;
        }

        .section-eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 0.875rem;
            font-weight: 500;
            color: var(--primary);
            background: rgba(228, 77, 38, 0.08);
            padding: 4px 14px;
            border-radius: 100px;
            margin-bottom: 10px;
            text-transform: uppercase;
            letter-spacing: 0.05em;
            font-size: 0.78rem;
        }

        .section-title {
            font-size: clamp(1.5rem, 2.5vw, 2rem);
            font-weight: 700;
            line-height: 1.4;
            letter-spacing: -0.01em;
        }

        .section-sub {
            color: var(--text-secondary);
            font-size: 0.975rem;
            max-width: 720px;
        }

        .update-content {
            max-width: 1000px;
            margin: 0 auto;
        }

        .timeline-wrap {
            position: relative;
            padding: 0 0 0 48px;
        }

        .timeline-wrap::before {
            content: '';
            position: absolute;
            left: 18px;
            top: 8px;
            bottom: 8px;
            width: 2px;
            background: var(--border);
        }

        .timeline-item {
            position: relative;
            background: transparent;
            padding-bottom: 36px;
        }

        .timeline-dot {
            position: absolute;
            left: -48px;
            top: 8px;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--bg);
            border: 2px solid var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            z-index: 1;
            font-size: 0.75rem;
            font-weight: 600;
        }

        .timeline-card {
            background: var(--card-bg);
            border-radius: var(--radius);
            padding: 28px 30px;
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow);
            transition: box-shadow 0.3s;
        }

        .timeline-card:hover {
            box-shadow: var(--shadow-hover);
        }

        .timeline-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-wrap: wrap;
            margin-bottom: 14px;
        }

        .badge-date {
            background: var(--dark-bg);
            color: #fff;
            padding: 3px 10px;
            border-radius: 6px;
            font-size: 0.8rem;
            font-weight: 500;
        }

        .badge {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            border-radius: 100px;
            padding: 3px 10px;
            font-size: 0.75rem;
            font-weight: 500;
            line-height: 1.4;
        }

        .badge-ver {
            background: rgba(228, 77, 38, 0.1);
            color: var(--primary);
            border: 1px solid rgba(228, 77, 38, 0.1);
        }

        .badge-green {
            background: rgba(15, 157, 122, 0.1);
            color: var(--secondary-dark);
            border: 1px solid rgba(15, 157, 122, 0.15);
        }

        .badge-warning {
            background: rgba(217, 135, 38, 0.1);
            color: var(--warning);
            border: 1px solid rgba(217, 135, 38, 0.12);
        }

        .badge-white {
            background: rgba(255, 255, 255, 0.1);
            color: rgba(255, 255, 255, 0.8);
            border: 1px solid rgba(255, 255, 255, 0.14);
        }

        .timeline-card h3 {
            font-size: 1.05rem;
            font-weight: 600;
            margin-bottom: 12px;
            line-height: 1.5;
        }

        .timeline-features {
            display: flex;
            flex-wrap: wrap;
            gap: 8px 24px;
            margin-bottom: 12px;
        }

        .timeline-features li {
            position: relative;
            font-size: 0.9rem;
            color: var(--text-secondary);
            padding-left: 18px;
        }

        .timeline-features li::before {
            content: '✓';
            position: absolute;
            left: 0;
            color: var(--secondary);
            font-weight: 700;
            font-size: 0.8rem;
        }

        .timeline-tip {
            background: var(--bg);
            border-left: 3px solid var(--warning);
            padding: 10px 16px;
            font-size: 0.85rem;
            color: var(--text-secondary);
            border-radius: 0 8px 8px 0;
            margin-top: 6px;
        }

        .split-section {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 60px;
            align-items: start;
        }

        .left-col h2,
        .right-col h2 {
            margin-bottom: 28px;
        }

        .inline-note {
            background: #fff8f0;
            border: 1px solid #f0dfc4;
            border-radius: 12px;
            padding: 16px 22px;
            font-size: 0.95rem;
            color: #7a4d1a;
            display: flex;
            gap: 12px;
            align-items: flex-start;
            margin-bottom: 32px;
        }

        .inline-note i {
            margin-top: 4px;
            color: var(--warning);
        }

        .help-list {
            background: var(--dark-bg);
        }

        .help-list-item {
            border: 1px solid rgba(255, 255, 255, 0.06);
            border-radius: 14px;
            padding: 24px 28px;
            background: rgba(255, 255, 255, 0.03);
            transition: all 0.3s;
            height: 100%;
        }

        .help-list-item:hover {
            background: rgba(255, 255, 255, 0.07);
            border-color: rgba(228, 77, 38, 0.3);
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(15, 25, 35, 0.25);
        }

        .help-list-item i {
            font-size: 1.6rem;
            color: var(--primary);
            background: rgba(228, 77, 38, 0.15);
            width: 52px;
            height: 52px;
            border-radius: 14px;
            display: flex;
            justify-content: center;
            align-items: center;
            margin-bottom: 18px;
        }

        .help-list-item h3 {
            color: rgba(255, 255, 255, 0.9);
            font-size: 1.05rem;
            margin-bottom: 12px;
            font-weight: 600;
        }

        .help-list-item p {
            color: rgba(255, 255, 255, 0.55);
            font-size: 0.92rem;
            margin-bottom: 16px;
        }

        .help-list-item a {
            color: #f9a78b;
            font-size: 0.88rem;
            font-weight: 500;
        }

        .news-grid {
            background: var(--bg);
        }

        .news-card {
            background: var(--card-bg);
            border: 1px solid var(--border-light);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            overflow: hidden;
            transition: box-shadow 0.3s;
            height: 100%;
        }

        .news-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
            transition: all 0.3s;
        }

        .news-card .meta-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 8px;
            padding: 19px 20px 0 20px;
            margin-bottom: 8px;
        }

        .news-card .card-title {
            font-size: 1.2rem;
            font-weight: 600;
            line-height: 1.4;
            padding: 0 20px;
            margin-bottom: 10px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            min-height: 3.4em;
        }

        .news-card .meta-row time {
            color: var(--text-light);
            font-size: 0.75rem;
        }

        .news-card .tag {
            background: var(--bg);
            color: var(--text-secondary);
            border-radius: 100px;
            padding: 4px 10px;
            font-size: 0.75rem;
            font-weight: 500;
            border: 1px solid var(--border);
        }

        .news-card .summary {
            font-size: 0.92rem;
            color: var(--text-secondary);
            line-height: 1.7;
            padding: 0 20px 20px;
            letter-spacing: 0.01em;
        }

        .news-card .read-link {
            font-size: 0.85rem;
            color: var(--primary);
            font-weight: 500;
            display: inline-flex;
            margin: 0 20px 20px;
            align-items: center;
            gap: 5px;
        }

        .news-grid-cols {
            display: grid;
            grid-template-columns: repeat(2, minmax(0, 1fr));
            gap: 24px;
            background: transparent;
        }

        .safety-section {
            background: #fff;
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
            padding: 70px 0;
        }

        .safety-grid {
            display: grid;
            grid-template-columns: repeat(3, minmax(0, 1fr));
            gap: 20px;
        }

        .safety-item {
            background: var(--bg);
            border: 1px solid var(--border-light);
            border-radius: var(--radius);
            padding: 28px 24px;
            display: flex;
            gap: 14px;
            transition: box-shadow 0.3s;
        }

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

        .safety-item .safety-icon {
            background: rgba(15, 157, 122, 0.1);
            color: var(--secondary-dark);
            width: 44px;
            height: 44px;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            flex-shrink: 0;
        }

        .safety-item h3 {
            font-size: 1rem;
            font-weight: 600;
            margin-bottom: 6px;
        }

        .safety-item p {
            font-size: 0.875rem;
            line-height: 1.7;
            color: var(--text-secondary);
        }

        .cta-dark {
            background: var(--dark-bg);
            padding: 80px 0;
            position: relative;
            overflow: hidden;
        }

        .cta-dark::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            opacity: 0.05;
            z-index: 0;
        }

        .cta-box {
            max-width: 760px;
            margin: 0 auto;
            text-align: center;
            padding: 30px 20px;
            position: relative;
            z-index: 1;
        }

        .cta-box h2 {
            color: #fff;
            font-size: clamp(1.8rem, 3vw, 2.5rem);
            font-weight: 800;
            line-height: 1.35;
            margin-bottom: 20px;
        }

        .cta-box p {
            color: rgba(255, 255, 255, 0.75);
            font-size: 1.05rem;
            margin-bottom: 32px;
        }

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

        .cta-buttons .btn {
            min-width: 130px;
        }

        .cta-note {
            margin-top: 22px;
            color: rgba(255, 255, 255, 0.35);
            font-size: 0.8rem;
        }

        .faq-section {
            padding: 92px 0;
            background: var(--bg);
        }

        .faq-inner {
            max-width: 860px;
            margin: 0 auto;
            padding: 0 20px;
        }

        .faq-item {
            border-bottom: 1px solid var(--border);
        }

        .faq-item summary {
            list-style: none;
            cursor: pointer;
            padding: 22px 0;
            font-size: 1rem;
            font-weight: 600;
            color: var(--text);
            position: relative;
            padding-right: 48px;
            font-weight: 600;
            transition: color 0.2s;
        }

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

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

        .faq-item summary::after {
            content: '+';
            position: absolute;
            right: 0;
            top: 50%;
            width: 34px;
            height: 34px;
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: 50%;
            transform: translateY(-50%);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.25rem;
            color: var(--text-secondary);
            transition: transform 0.25s, color 0.25s, background 0.25s;
        }

        .faq-item[open] summary::after {
            content: '+';
            transform: translateY(-50%) rotate(45deg);
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }

        .faq-item summary i,
        .faq-item summary span {
            pointer-events: none;
        }

        .faq-answer {
            padding: 0 0 22px;
            font-size: 0.95rem;
            color: var(--text-secondary);
            line-height: 1.9;
            max-width: 760px;
        }

        .footer {
            background: var(--darker-bg);
            color: rgba(255, 255, 255, 0.6);
            padding: 72px 0 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1.1fr;
            gap: 44px;
            padding-bottom: 46px;
        }

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

        .footer-brand .brand .brand-name strong {
            color: #fff;
            font-size: 1rem;
        }

        .footer-brand .brand .brand-name small {
            font-size: 0.68rem;
        }

        .footer-brand p {
            font-size: 0.875rem;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.5);
            max-width: 300px;
            margin-top: 14px;
        }

        .footer-head {
            color: #fff;
            font-weight: 600;
            font-size: 0.95rem;
            margin-bottom: 16px;
        }

        .footer-list li {
            margin-bottom: 10px;
        }

        .footer-list a {
            color: rgba(255, 255, 255, 0.45);
            font-size: 0.875rem;
            transition: color 0.2s;
        }

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

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding: 20px 0 24px;
            display: flex;
            justify-content: space-between;
            gap: 10px;
            flex-wrap: wrap;
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.28);
        }

        .footer-domain {
            color: var(--primary);
            opacity: 0.8;
        }

        .all-cards-area {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }

        .card {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius);
        }

        .feature-card {
            padding: 16px;
        }

        .feature-card .media {
            border-radius: 12px;
            overflow: hidden;
            aspect-ratio: 3 / 2;
            background-color: #e8e9e9;
            margin-bottom: 18px;
        }

        .feature-card .media img {
            width: 100%;
            height: 100%;
        }

        .media-placeholder {
            display: flex;
            align-items: center;
            justify-content: center;
            background: var(--border);
            height: 100%;
        }

        .feature-card h3 {
            font-size: 1.05rem;
            margin-bottom: 8px;
            color: var(--text);
        }

        .feature-card p {
            font-size: 0.875rem;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        .nav-home a,
        .official-page .nav-item:nth-child(2) {
            font-weight: 500;
        }

        .intro-banner {
            margin-bottom: 0;
        }

        .heading-wrap {
            margin-bottom: 18px;
        }

        .heading-wrap h1 {
            font-size: clamp(1.8rem, 4vw, 2rem);
        }

        .main-container-padding {
            padding-top: 70px;
            padding-bottom: 70px;
        }

        .update-list-v2 {
            background: transparent;
        }

        .row-list {
            display: flex;
            flex-direction: column;
            max-width: 880px;
            margin: 0 auto;
            gap: 14px;
            padding: 0;
        }

        .row-item {
            display: flex;
            padding: 24px;
            border-radius: 16px;
            background: var(--card-bg);
            border: 1px solid var(--border);
            box-shadow: 0 2px 10px rgba(15, 25, 35, 0.03);
            gap: 20px
        }

        .row-index {
            color: var(--primary);
            font-size: 1.4rem;
            font-weight: 800;
            flex-shrink: 0;
            line-height: 1.3;
        }

        .update-detail .detail-date {
            color: var(--text-light);
            font-size: 0.85rem;
        }

        .row-title {
            color: var(--text);
            font-size: 1.2rem;
            font-weight: 700;
            /* large */
        }

        .row-list .row-item ul {
            padding-left: 20px;
            margin: 10px 0 0;
            list-style: none;
        }

        .row-list .row-item ul li {
            position: relative;
            padding-left: 20px;
            margin-bottom: 10px;
            color: var(--text-secondary);
        }

        .row-list .row-item ul i {
            color: var(--secondary);
            margin-right: 6px;
            opacity: 0.8;
        }

        .row-item .has-badge {
            display: flex;
            flex-direction: column;
            width: 100%;
        }

        .row-title + ul,
        .row-list .row-item ul {
            list-style-type: none;
            margin-top: 10px;
        }

        .faq-cols {
            display: grid;
            grid-template-columns: repeat(2, minmax(0, 1fr));
            gap: 12px 30px;
            max-width: 1000px;
        }

        .quick-help-inner {
            background: var(--card-bg);
            padding: 30px;
            border-radius: 16px;
            border: 1px solid var(--border);
            box-shadow: none;
        }

        .info-banner {
            margin: 0 auto 38px;
            max-width: none;
            border: 1px solid rgba(228, 77, 38, 0.5);
            background: rgba(228, 77, 38, 0.3);
            border-radius: 8px;
            padding: 10px 16px;
            color: #fdc4b4;
        }

        .info-banner i {
            color: var(--primary);
        }

        .timeline-item:last-child {
            padding-bottom: 0;
        }

        .help-column {
            background: #fff;
            border-top: 1px solid var(--border);
            padding: 92px 0;
        }

        .guide-grid {
            display: grid;
            grid-template-columns: repeat(2, minmax(0, 1fr));
            gap: 20px;
        }

        .guide-card {
            background: var(--bg);
            border: 1px solid var(--border-light);
            border-radius: var(--radius);
            padding: 28px 24px;
            display: flex;
            gap: 14px;
            transition: all 0.3s;
            height: 100%;

        }

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

        .guide-card .doc-icon {
            background: rgba(228, 77, 38, 0.1);
            color: var(--primary);
            width: 48px;
            height: 48px;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            flex-shrink: 0;
        }

        .guide-card h3 {
            font-size: 1.1rem;
            margin-bottom: 12px;
        }

        .guide-card p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        .partition-title {
            font-size: 1.05rem;
            font-weight: 600;
            margin: 0 0 16px 0;
            color: var(--text);
        }

        .bullets {
            list-style: none;
            margin: 8px 0 16px 0;
        }

        .bullets li {
            color: var(--text-secondary);
            padding-left: 20px;
            position: relative;
            font-size: 0.92rem;
            margin-bottom: 10px;
        }

        .bullets li i {
            position: absolute;
            left: 2px;
            top: 2px;
            color: var(--secondary);
            font-size: 0.9rem;
            width: 14px;
            text-align: center;
        }

        .official-download.download-container {
            background: transparent;
            border: none;
        }

        .no-shadow {
            box-shadow: none !important;
        }

        .help-list4 {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
            padding: 0;
            border: none;
        }

        .skip-nav {

        }

        .skip-nav a {
            position: absolute;
            top: -200px;
            left: 20px;
            background: var(--primary);
            color: #fff;
            padding: 10px 16px;
            border-radius: 8px;
            z-index: 10000;
            transition: top .2s;
        }

        .skip-nav a:focus {
            top: 12px;
        }

        @media (max-width: 992px) {
            .hero-wrap {
                flex-direction: row;
                justify-content: space-between;
                gap: 20px;
            }

            .hero-visual {
                width: 190px;
                height: 210px;
                display: flex;
                order: 2;
            }

            .hero-content {
                order: 1;
            }

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

            .hero-banner {
                padding: 60px 0 40px;
            }

            .split-section {
                grid-template-columns: 1fr;
                gap: 46px;
            }

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

            .help-list4 {
                grid-template-columns: repeat(2, minmax(0, 1fr));
                gap: 16px;
            }

            .all-cards-area {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }

            .news-grid-cols {
                gap: 16px;
            }

            .guide-grid {
                gap: 16px;
            }

            .metric-item {
                padding: 14px 14px;
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }

        }

        @media (max-width: 786px) {
            .topbar {
                display: none;
            }

            .main-nav .container {
                padding: 0 16px;
            }

            .nav-inner {
                height: 64px;
                gap: 8px;
            }

            .nav-links {
                overflow: hidden;
                margin-left: 0;
            }

            .nav-pill {
                gap: 4px;
            }

            .nav-item {
                padding: 7px 12px;
                font-size: 0.82rem;
            }

            .nav-cta .btn-sm {
                height: 32px;
                padding: 0 12px;
                font-size: 0.8rem;
                border-radius: 6px;
            }

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

            .nav-cta .btn-sm svg {
                width: 16px;
                height: 16px;
            }

            .hero-metrics {
                grid-template-columns: repeat(3, minmax(0, 1fr));
                gap: 8px;
                padding: 20px 16px 0;
            }

            .metric-item {
                padding: 12px 8px;
                align-items: center;
                text-align: center;
            }

            .metric-text strong {
                font-size: 1.05rem;
            }

            .metric-text span {
                font-size: 0.7rem;
            }

            .metric-icon {
                width: 28px;
                height: 28px;
                border-radius: 6px;
                font-size: 0.9rem;
            }

            .hero-banner {
                padding: 52px 0 32px;
            }

            .hero-content {
                max-width: 100% !important;
                margin-bottom: 30px;
            }

            .hero-wrap {
                flex-direction: column;
            }

            .hero-visual {
                width: 55%;
                max-width: 170px;
                height: auto;
                aspect-ratio: 9/16;
                display: flex;
            }

            .section {
                padding: 60px 0;
            }

            .faq-cols {
                grid-template-columns: 1fr;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
                padding-bottom: 30px;
            }

            .timeline-wrap {
                padding-left: 40px;
            }

            .timeline-dot {
                left: -40px;
                width: 30px;
                height: 30px;
                font-size: 0.65rem;
            }

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

            .news-grid-cols {
                grid-template-columns: 1fr;
            }

            .help-list4 {
                grid-template-columns: 1fr;
                gap: 12px;
            }

            .row-item {
                flex-direction: column;
                padding: 20px;
            }

            .row-index {
                font-size: 1rem;
            }

            .update-detail {
                margin-top: 8px;
            }

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

            .hero-tools .btn {
                width: 100%;
                justify-content: center;
            }

            .hero-tools {
                width: 100%;
                display: flex;
                flex-direction: row;
            }

            .hero-tools .btn-flex-half {
                flex: 1;
            }

            .all-cards-area {
                grid-template-columns: 1fr;
                gap: 14px;
            }

            .footer-bottom {
                display: flex;
                flex-direction: column;
                gap: 8px;
                align-items: flex-start;
            }

            .cta-buttons .btn {
                width: 100%;
                justify-content: center;
                flex: 1;
            }

            .nav-pill {
                width: 100%;
                background: transparent;
                border: none;
                padding: 0;
            }

            .nav-links {
                width: auto;
                flex: 1;
                overflow-x: auto;
            }

            .pill-slider {
                overflow-x: auto;
                max-width: 100%;
            }

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

        }

        @media (max-width: 520px) {
            .nav-item {
                padding: 6px 10px;
                font-size: 0.8rem;
            }

            .brand-mark {
                width: 30px;
                height: 30px;
            }

            .brand-name strong {
                font-size: 0.9rem;
            }

            .brand-name small {
                display: none;
            }

            .nav-inner {
                gap: 4px;
            }

            .nav-cta .btn-sm {
                padding: 0 8px;
            }

            .hero-metrics {
                grid-template-columns: repeat(3, 1fr);
                gap: 6px;
            }

            .metric-item {
                flex-direction: column;
                text-align: center;
                padding: 8px 4px;
            }

            .metric-icon {
                display: none;
            }

            .metric-text strong {
                font-size: 1.05rem;
            }

            .section {
                padding: 46px 0;
            }

            .section-head {
                flex-direction: column;
                gap: 16px;
            }

            .hero-visual {
                width: 80%;
                max-width: 160px;
            }

            .timeline-meta {
                flex-direction: column;
                align-items: flex-start;
                gap: 6px;
                margin-bottom: 10px;
            }

            .timeline-card {
                padding: 20px 16px;
            }

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

            .footer-list li {
                margin-bottom: 8px;
            }

            .footer-bottom {
                flex-direction: column;
                gap: 6px;
            }

            .btn {
                padding: 0 16px;
            }

            .container {
                padding: 0 16px;
            }

            .faq-item summary {
                font-size: 0.95rem;
            }
        }

/* roulang page: category2 */
:root{
  --primary:#E44D26;
  --primary-hover:#C23B14;
  --accent:#0F9D7A;
  --accent-soft:rgba(15,157,122,.12);
  --bg:#F5F3EF;
  --surface:#FFFFFF;
  --surface-alt:#F0EEE9;
  --ink:#0F1923;
  --ink-deep:#0C151D;
  --text:#1E2A33;
  --text-2:#4C5A66;
  --text-3:#8A97A3;
  --border:#DDE2E2;
  --warn:#D98726;
  --radius-btn:10px;
  --radius-card:16px;
  --radius-img:12px;
  --shadow-card:0 2px 12px rgba(15,25,35,.06);
  --shadow-hover:0 16px 28px rgba(15,25,35,.1);
  --container:1200px;
  --gap:24px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:system-ui,-apple-system,"PingFang SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.9;
  color:var(--text);
  background:var(--bg);
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;cursor:pointer}
h1,h2,h3,h4{margin:0;line-height:1.4;color:var(--text);letter-spacing:.2px}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px}
.section{padding:72px 0}
.section-alt{background:var(--surface)}
.section-ink{background:var(--ink);color:#fff}
.section-ink h2,.section-ink h3{color:#fff}
.section-head{max-width:760px;margin-bottom:40px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:.8125rem;letter-spacing:1px;
  color:var(--primary);font-weight:700;
  background:rgba(228,77,38,.1);
  padding:6px 14px;border-radius:100px;margin-bottom:16px;
}
.section-ink .eyebrow{color:#FFD9CB;background:rgba(228,77,38,.24)}
h1{font-size:clamp(2rem,4vw,3rem);font-weight:800}
h2{font-size:clamp(1.5rem,2.5vw,2rem);font-weight:700}
h3{font-size:clamp(1.1rem,1.4vw,1.25rem);font-weight:650}
.section-sub{margin-top:14px;color:var(--text-2);font-size:1rem;max-width:640px}
.section-ink .section-sub{color:rgba(255,255,255,.72)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 22px;border-radius:var(--radius-btn);
  border:1px solid transparent;font-size:.9375rem;font-weight:650;
  transition:background .18s ease,color .18s ease,border-color .18s ease,transform .12s ease,box-shadow .18s ease;
  white-space:nowrap;
}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 8px 18px rgba(228,77,38,.24)}
.btn-primary:hover{background:var(--primary-hover)}
.btn-ghost{background:transparent;color:var(--text);border-color:var(--border)}
.btn-ghost:hover{border-color:var(--text-2);background:rgba(15,25,35,.04)}
.btn-light{background:#fff;color:var(--ink)}
.btn-light:hover{background:#F0EEE9}
.btn-outline-light{background:rgba(255,255,255,.06);color:#fff;border-color:rgba(255,255,255,.28)}
.btn-outline-light:hover{background:rgba(255,255,255,.14)}
.btn-sm{height:40px;padding:0 16px;font-size:.875rem}
.btn[disabled],.btn.is-disabled{opacity:.5;pointer-events:none}

/* ---------- 徽章 / 标签 ---------- */
.tag{
  display:inline-flex;align-items:center;gap:6px;
  font-size:.75rem;font-weight:650;line-height:1;
  padding:6px 12px;border-radius:100px;
  background:var(--surface-alt);color:var(--text-2);
  border:1px solid var(--border);
}
.tag-accent{background:var(--accent-soft);color:#0B7A5F;border-color:rgba(15,157,122,.28)}
.tag-warn{background:rgba(217,135,38,.12);color:#A5620F;border-color:rgba(217,135,38,.3)}
.tag-primary{background:rgba(228,77,38,.1);color:var(--primary);border-color:rgba(228,77,38,.26)}
.dot{width:8px;height:8px;border-radius:50%;background:var(--accent);display:inline-block;flex:0 0 auto}

/* ---------- 顶栏 ---------- */
.site-header{position:sticky;top:0;z-index:60}
.topbar{background:var(--ink-deep);color:rgba(255,255,255,.78);font-size:.8125rem;height:36px;display:flex;align-items:center}
.topbar .container{display:flex;align-items:center;justify-content:space-between;gap:16px}
.safe-tip{display:inline-flex;align-items:center;gap:10px;overflow:hidden;white-space:nowrap;text-overflow:ellipsis}
.topbar-link{color:#FFC9B6;font-weight:600;white-space:nowrap}
.topbar-link:hover{color:#fff}
.main-nav{background:var(--ink);border-bottom:1px solid rgba(255,255,255,.08);height:72px;display:flex;align-items:center}
.nav-inner{display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:24px}
.brand{display:inline-flex;align-items:center;gap:12px;color:#fff}
.brand-mark{
  width:42px;height:42px;border-radius:12px;flex:0 0 auto;
  display:inline-flex;align-items:center;justify-content:center;
  background:linear-gradient(140deg,var(--primary),#F07A4B);color:#fff;
  box-shadow:0 6px 16px rgba(228,77,38,.32);
}
.brand-mark svg{width:24px;height:24px}
.brand-name{display:flex;flex-direction:column;line-height:1.2}
.brand-name strong{font-size:1.0625rem;font-weight:800;letter-spacing:.4px}
.brand-name small{font-size:.75rem;color:rgba(255,255,255,.6);letter-spacing:2px}
.nav-links{min-width:0;display:flex;justify-content:center}
.nav-pill{
  display:flex;align-items:center;gap:4px;padding:4px;
  background:rgba(255,255,255,.08);border-radius:100px;
  overflow-x:auto;scrollbar-width:none;max-width:100%;
}
.nav-pill::-webkit-scrollbar{display:none}
.nav-item{
  display:inline-block;padding:8px 18px;border-radius:100px;
  font-size:.875rem;font-weight:600;color:rgba(255,255,255,.8);
  white-space:nowrap;transition:background .18s ease,color .18s ease;
}
.nav-item:hover{background:rgba(255,255,255,.14);color:#fff}
.nav-item.active{background:#fff;color:var(--ink)}
.nav-cta{display:flex;align-items:center;gap:12px}

/* ---------- 页面头部 ---------- */
.page-hero{
  position:relative;
  background:linear-gradient(rgba(15,25,35,.88),rgba(15,25,35,.94)),url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  color:#fff;padding:64px 0 56px;overflow:hidden;
}
.page-hero .container{position:relative;z-index:2}
.crumb{font-size:.8125rem;color:rgba(255,255,255,.6);margin-bottom:18px}
.crumb a:hover{color:#fff}
.crumb span{margin:0 8px;color:rgba(255,255,255,.35)}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(0,.85fr);gap:48px;align-items:center}
.hero-title{color:#fff;max-width:660px}
.hero-lead{margin-top:18px;color:rgba(255,255,255,.76);font-size:1.0625rem;max-width:620px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.metric-panel{
  display:grid;grid-template-columns:1fr 1fr;gap:14px;
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);
  border-radius:var(--radius-card);padding:22px;
}
.metric{display:flex;flex-direction:column;gap:6px}
.metric-num{font-size:1.5rem;font-weight:800;font-family:"DIN Alternate","Bahnschrift",system-ui,sans-serif;color:#fff;line-height:1.2}
.metric-label{font-size:.8125rem;color:rgba(255,255,255,.62)}
.metric.full{grid-column:1 / -1;border-top:1px solid rgba(255,255,255,.14);padding-top:14px}

/* ---------- 提示条 ---------- */
.notice-band{background:var(--surface-alt);border-top:1px solid var(--border);border-bottom:1px solid var(--border);padding:18px 0}
.notice-row{display:flex;flex-wrap:wrap;gap:12px 32px;align-items:center;font-size:.9375rem;color:var(--text-2)}
.notice-row .item{display:inline-flex;align-items:center;gap:8px}
.notice-row .item strong{color:var(--text)}
.notice-icon{
  width:20px;height:20px;border-radius:50%;flex:0 0 auto;
  background:var(--accent-soft);color:#0B7A5F;
  display:inline-flex;align-items:center;justify-content:center;font-size:.75rem;font-weight:800;
}

/* ---------- 步骤主线 ---------- */
.steps{counter-reset:step;border-top:1px solid var(--border);margin-top:8px}
.step{
  display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:40px;
  padding:36px 0;border-bottom:1px solid var(--border);
}
.step-no{
  display:inline-flex;align-items:center;justify-content:center;
  min-width:52px;height:32px;border-radius:100px;margin-bottom:16px;
  background:var(--ink);color:#fff;font-size:.8125rem;font-weight:800;
  font-family:"DIN Alternate","Bahnschrift",system-ui,sans-serif;letter-spacing:1px;
}
.step.active .step-no{background:var(--primary)}
.step-text p{color:var(--text-2);margin-top:10px;max-width:640px}
.rule-list{margin-top:14px;display:flex;flex-direction:column;gap:10px;max-width:640px}
.rule-list li{position:relative;padding-left:20px;color:var(--text-2);font-size:.9375rem}
.rule-list li::before{
  content:"";position:absolute;left:0;top:12px;width:7px;height:7px;border-radius:50%;
  background:var(--primary);
}
.rule-list li strong{color:var(--text)}
.step-media{
  border-radius:var(--radius-img);overflow:hidden;border:1px solid var(--border);
  background:var(--surface);box-shadow:var(--shadow-card);
}
.step-media img{width:100%;height:100%;aspect-ratio:4/3;object-fit:cover;transition:transform .35s ease}
.step-media:hover img{transform:scale(1.03)}

/* ---------- 提示块 ---------- */
.callout{
  display:flex;gap:16px;align-items:flex-start;
  border:1px solid var(--border);border-left:4px solid var(--warn);
  background:var(--surface);border-radius:var(--radius-card);
  padding:20px 24px;box-shadow:var(--shadow-card);
}
.callout .callout-mark{
  flex:0 0 auto;width:36px;height:36px;border-radius:10px;
  background:rgba(217,135,38,.14);color:#A5620F;
  display:inline-flex;align-items:center;justify-content:center;font-weight:800;
}
.callout h3{font-size:1.0625rem}
.callout p{color:var(--text-2);margin-top:8px;font-size:.9375rem}
.callout-safe{border-left-color:var(--accent)}
.callout-safe .callout-mark{background:var(--accent-soft);color:#0B7A5F}

/* ---------- 双栏图文 ---------- */
.split{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:48px;align-items:center}
.split-media{border-radius:var(--radius-card);overflow:hidden;border:1px solid var(--border);box-shadow:var(--shadow-card)}
.split-media img{width:100%;aspect-ratio:16/11;object-fit:cover}
.mini-steps{display:flex;flex-direction:column;gap:18px;margin-top:24px}
.mini-step{display:flex;gap:16px;align-items:flex-start}
.mini-index{
  flex:0 0 auto;width:34px;height:34px;border-radius:10px;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--surface-alt);border:1px solid var(--border);
  font-weight:800;font-size:.8125rem;color:var(--text-2);
  font-family:"DIN Alternate","Bahnschrift",system-ui,sans-serif;
}
.mini-step h3{font-size:1.0625rem}
.mini-step p{color:var(--text-2);font-size:.9375rem;margin-top:6px}

/* ---------- 对照表 ---------- */
.table-wrap{border:1px solid var(--border);border-radius:var(--radius-card);overflow:hidden;background:var(--surface);box-shadow:var(--shadow-card)}
table{width:100%;border-collapse:collapse;font-size:.9375rem}
thead th{
  text-align:left;font-weight:700;font-size:.8125rem;color:var(--text-2);
  background:var(--surface-alt);padding:14px 20px;letter-spacing:.4px;white-space:nowrap;
}
tbody td{padding:16px 20px;border-top:1px solid var(--border);color:var(--text-2);vertical-align:middle}
tbody td:first-child{color:var(--text);font-weight:650}
tbody tr:hover{background:rgba(15,25,35,.02)}

/* ---------- 自检卡片 ---------- */
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--gap)}
.check-card{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-card);
  padding:24px;box-shadow:var(--shadow-card);
  transition:box-shadow .2s ease,transform .2s ease,border-color .2s ease;
}
.check-card:hover{box-shadow:var(--shadow-hover);transform:translateY(-2px);border-color:#C9D2D2}
.check-card h3{font-size:1.0625rem;margin-bottom:10px}
.check-card p{color:var(--text-2);font-size:.9375rem}
.check-icon{
  width:40px;height:40px;border-radius:12px;margin-bottom:16px;
  display:inline-flex;align-items:center;justify-content:center;
  background:rgba(228,77,38,.1);color:var(--primary);font-weight:800;
}

/* ---------- FAQ ---------- */
.faq{max-width:760px;margin:0 auto;border-top:1px solid var(--border)}
.faq details{border-bottom:1px solid var(--border)}
.faq summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 4px;font-size:.9375rem;font-weight:650;color:var(--text);
  transition:color .18s ease;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary:hover{color:var(--primary)}
.faq .mark{
  flex:0 0 auto;width:26px;height:26px;border-radius:50%;
  border:1px solid var(--border);color:var(--text-2);
  display:inline-flex;align-items:center;justify-content:center;
  font-weight:700;font-size:1rem;line-height:1;
  transition:transform .22s ease,background .22s ease,color .22s ease,border-color .22s ease;
}
.faq details[open] .mark{transform:rotate(45deg);background:var(--primary);border-color:var(--primary);color:#fff}
.faq .answer{padding:0 4px 24px;color:var(--text-2);font-size:.9375rem;max-width:660px}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;background:linear-gradient(rgba(15,25,35,.93),rgba(15,25,35,.96)),url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  color:#fff;padding:72px 0;
}
.cta-inner{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:32px}
.cta-text{max-width:620px}
.cta-text h2{color:#fff}
.cta-text p{color:rgba(255,255,255,.74);margin-top:14px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}

/* ---------- 页脚 ---------- */
.footer{background:var(--ink-deep);color:rgba(255,255,255,.7);padding:64px 0 0;font-size:.9375rem}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;padding-bottom:44px}
.footer-brand .brand{margin-bottom:18px}
.footer-brand p{color:rgba(255,255,255,.6);font-size:.875rem;line-height:1.9;max-width:360px}
.footer-head{color:#fff;font-weight:700;font-size:.9375rem;margin-bottom:16px}
.footer-list{display:flex;flex-direction:column;gap:12px}
.footer-list a{color:rgba(255,255,255,.66);font-size:.875rem;transition:color .18s ease}
.footer-list a:hover{color:#fff}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);padding:20px 0 26px;
  display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;
  font-size:.8125rem;color:rgba(255,255,255,.5);
}
.footer-domain{color:#FFC9B6;font-weight:600}

/* ---------- 响应式 ---------- */
@media (max-width:1280px){
  .container{padding:0 20px}
  .hero-grid{gap:36px}
}
@media (max-width:1024px){
  .section{padding:60px 0}
  .hero-grid{grid-template-columns:1fr}
  .metric-panel{grid-template-columns:1fr 1fr;max-width:520px}
  .step{grid-template-columns:minmax(0,1fr) 240px;gap:28px}
  .split{grid-template-columns:1fr;gap:32px}
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:768px){
  body{font-size:15.5px}
  .topbar{height:auto;min-height:36px;padding:8px 0;font-size:.75rem}
  .topbar .container{flex-direction:column;align-items:flex-start;gap:4px}
  .safe-tip{white-space:normal;line-height:1.6}
  .main-nav{height:auto;padding:12px 0}
  .nav-inner{grid-template-columns:auto 1fr;grid-template-areas:"brand cta" "nav nav";gap:12px 16px}
  .brand{grid-area:brand}
  .nav-links{grid-area:nav;justify-content:flex-start}
  .nav-cta{grid-area:cta;justify-self:end}
  .brand-mark{width:36px;height:36px;border-radius:10px}
  .brand-mark svg{width:20px;height:20px}
  .brand-name strong{font-size:.9375rem}
  .nav-item{padding:7px 14px;font-size:.8125rem}
  .page-hero{padding:44px 0 40px}
  .hero-actions{gap:12px}
  .hero-actions .btn{flex:1 1 100%}
  .step{grid-template-columns:1fr;gap:20px;padding:28px 0}
  .step-media{max-width:520px}
  .grid-4{grid-template-columns:1fr}
  .cta-inner{flex-direction:column;align-items:flex-start}
  .cta-actions .btn{flex:1 1 100%}
  .table-wrap{overflow-x:auto}
  table{min-width:640px}
}
@media (max-width:520px){
  .container{padding:0 16px}
  .section{padding:44px 0}
  h1{font-size:1.75rem}
  .btn{height:46px;padding:0 18px;font-size:.9rem}
  .btn-sm{height:38px;padding:0 12px}
  .metric-panel{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .nav-cta .btn-label{display:none}
  .nav-cta .btn{width:44px;padding:0;justify-content:center}
  .callout{padding:16px 18px}
}