/* roulang page: index */
/* ========== design tokens & reset ========== */
:root {
  --color-bg: #0d0c0a;
  --color-surface: #191612;
  --color-line: #2b2621;
  --color-paper: #f6f3ee;
  --color-card: #ffffff;
  --color-ink: #221e1a;
  --color-ink-soft: #6f665e;
  --color-brand: #e85d0c;
  --color-brand-deep: #c44106;
  --color-gold: #ffb53c;
  --color-accent: #6c3cd9;
  --radius-md: 10px;
  --radius-lg: 16px;
  --shadow-card: 0 1px 2px rgb(0 0 0 / 0.05), 0 12px 28px -14px rgb(0 0 0 / 0.18);
}

* {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
}
body {
  margin: 0;
  font-family: "PingFang SC", "Microsoft YaHei", "HarmonyOS Sans SC", sans-serif;
  font-size: 16px;
  line-height: 1.75;
  background: var(--color-paper);
  color: var(--color-ink);
  -webkit-font-smoothing: antialiased;
}
h1, h2, h3, h4, h5, h6 {
  line-height: 1.2;
  margin: 0;
  font-weight: 700;
}
p {
  margin: 0;
}
img {
  max-width: 100%;
  display: block;
}
a {
  color: inherit;
  text-decoration: none;
}
button {
  font: inherit;
  cursor: pointer;
  border: none;
  background: none;
  padding: 0;
  color: inherit;
}
input {
  font: inherit;
}
ul, ol {
  margin: 0;
  padding: 0;
  list-style: none;
}
a:focus-visible, button:focus-visible {
  outline: 2px solid var(--color-brand);
  outline-offset: 3px;
  border-radius: 6px;
}

/* ========== layout ========== */
.container-site {
  max-width: 1180px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 24px;
  padding-right: 24px;
}
.site-section {
  padding: 88px 0;
}

/* ========== header ========== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 60;
  height: 72px;
  background: transparent;
  transition: background .25s ease, border-color .25s ease, backdrop-filter .25s ease;
  border-bottom: 1px solid transparent;
}
.site-header.scrolled {
  background: #14110e;
  border-bottom: 1px solid rgba(255,255,255,.08);
}
.header-inner {
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.brand-logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.brand-mark {
  width: 34px;
  height: 34px;
  border-radius: 9px;
  background: var(--color-brand);
  color: #fff;
  font-weight: 800;
  font-size: 14px;
  letter-spacing: .02em;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 14px rgba(232,93,12,.28);
}
.brand-name {
  color: #fff;
  font-size: 17px;
  font-weight: 700;
  letter-spacing: .01em;
  white-space: nowrap;
}
.main-nav {
  display: flex;
  align-items: center;
  gap: 30px;
}
.main-nav a {
  position: relative;
  color: rgba(255,255,255,.82);
  font-size: 15px;
  font-weight: 500;
  line-height: 72px;
  transition: color .2s;
}
.main-nav a:hover {
  color: #fff;
}
.main-nav a.active {
  color: #fff;
}
.main-nav a.active::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 18px;
  width: 20px;
  height: 2px;
  border-radius: 2px;
  background: var(--color-brand);
  transform: translateX(-50%);
}
.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}
.command-search {
  display: flex;
  align-items: center;
  gap: 8px;
  width: 228px;
  height: 38px;
  padding: 0 8px 0 12px;
  border-radius: 10px;
  background: rgba(255,255,255,.08);
  border: 1px solid rgba(255,255,255,.14);
  color: rgba(255,255,255,.55);
  font-size: 13px;
  cursor: default;
  transition: border-color .2s, background .2s;
}
.command-search:hover {
  background: rgba(255,255,255,.12);
  border-color: rgba(255,255,255,.28);
}
.command-search span {
  flex: 1;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.cmd-key {
  flex: 0 0 auto;
  min-width: 28px;
  height: 22px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 6px;
  background: rgba(255,255,255,.14);
  color: rgba(255,255,255,.7);
  font-size: 12px;
  font-family: inherit;
  font-weight: 500;
  letter-spacing: .02em;
}
.icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 10px;
  color: rgba(255,255,255,.78);
  transition: background .2s, color .2s;
}
.icon-btn:hover {
  background: rgba(255,255,255,.1);
  color: #fff;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 40px;
  border-radius: 10px;
  padding: 0 18px;
  font-weight: 600;
  font-size: 14px;
  letter-spacing: .01em;
  line-height: 1;
  white-space: nowrap;
  transition: background .2s, border-color .2s, transform .12s ease, box-shadow .2s, color .2s;
}
.btn:active {
  transform: translateY(1px);
}
.btn-primary {
  background: var(--color-brand);
  color: #fff;
  box-shadow: 0 6px 18px -8px rgba(232,93,12,.65);
}
.btn-primary:hover {
  background: var(--color-brand-deep);
  transform: translateY(-1px);
  box-shadow: 0 8px 20px -8px rgba(196,65,6,.6);
}
.btn-ghost {
  background: transparent;
  border: 1px solid rgba(255,255,255,.35);
  color: #fff;
}
.btn-ghost:hover {
  border-color: var(--color-brand);
  color: #fff;
  background: rgba(232,93,12,.12);
  transform: translateY(-1px);
}
.btn-outline-dark {
  background: transparent;
  border: 1px solid #d6cfc6;
  color: var(--color-ink);
}
.btn-outline-dark:hover {
  border-color: var(--color-brand);
  color: var(--color-brand-deep);
  background: rgba(232,93,12,.06);
  transform: translateY(-1px);
}
.header-cta {
  height: 38px;
  padding: 0 16px;
  font-size: 14px;
}
.mobile-menu-btn {
  display: none;
  width: 38px;
  height: 38px;
  border-radius: 10px;
  color: #fff;
  align-items: center;
  justify-content: center;
  background: rgba(255,255,255,.08);
}
.mobile-menu-btn:hover {
  background: rgba(255,255,255,.16);
}
.mobile-panel {
  display: none;
  position: fixed;
  top: 72px;
  left: 0;
  right: 0;
  z-index: 59;
  background: #14110e;
  border-bottom: 1px solid rgba(255,255,255,.08);
  padding: 16px 24px 20px;
}
.mobile-panel.open {
  display: block;
}
.mobile-panel a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 52px;
  color: rgba(255,255,255,.87);
  font-size: 16px;
  font-weight: 500;
  border-bottom: 1px solid rgba(255,255,255,.08);
}
.mobile-panel a:last-child {
  border-bottom: none;
}
.mobile-panel a:hover, .mobile-panel a.active {
  color: var(--color-gold);
}

/* ========== hero ========== */
.hero {
  min-height: 720px;
  padding: 160px 0 92px;
  background-color: #0d0c0a;
  background-image:
    linear-gradient(90deg, rgba(13,12,10,.96) 0%, rgba(13,12,10,.78) 48%, rgba(13,12,10,.42) 100%),
    url('/assets/images/backpic/back-1.webp');
  background-size: cover;
  background-position: center left;
  color: #fff;
  border-bottom: 1px solid rgba(255,255,255,.06);
}
.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(360px, .92fr);
  gap: 68px;
  align-items: center;
}
.hero-copy {
  max-width: 640px;
}
.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  height: 28px;
  padding: 0 12px;
  border-radius: 999px;
  background: rgba(255,255,255,.08);
  border: 1px solid rgba(255,255,255,.14);
  color: rgba(255,255,255,.72);
  font-size: 13px;
  margin-bottom: 24px;
  font-weight: 500;
}
.hero-eyebrow::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-brand);
  box-shadow: 0 0 0 4px rgba(232,93,12,.3);
}
.hero h1 {
  font-size: 46px;
  line-height: 1.2;
  letter-spacing: -0.01em;
  margin-bottom: 20px;
  font-weight: 800;
}
.hero-sub {
  font-size: 17px;
  line-height: 1.8;
  color: rgba(255,255,255,.74);
  max-width: 540px;
  margin-bottom: 34px;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 46px;
}
.hero-stats {
  display: flex;
  align-items: center;
  gap: 22px;
  color: rgba(255,255,255,.62);
  font-size: 14px;
  flex-wrap: wrap;
}
.hero-stats b {
  color: rgba(255,255,255,.92);
  font-weight: 700;
}
.hero-stats .stat-item {
  display: inline-flex;
  align-items: baseline;
  gap: 6px;
}
.hero-stats .divider {
  width: 1px;
  height: 16px;
  background: rgba(255,255,255,.22);
}
.hero-card-wrap {
  position: relative;
}
.hero-card {
  background: rgba(23,19,16,.7);
  border: 1px solid rgba(255,255,255,.12);
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 20px 60px -18px rgba(0,0,0,.65);
  backdrop-filter: blur(6px);
}
.hc-image {
  aspect-ratio: 16 / 10;
  position: relative;
}
.hc-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.hc-body {
  padding: 24px;
}
.hc-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 12px;
}
.hc-title {
  font-size: 20px;
  line-height: 1.4;
  margin-bottom: 8px;
  font-weight: 700;
}
.hc-desc {
  color: rgba(255,255,255,.65);
  font-size: 14px;
  line-height: 1.7;
  margin-bottom: 18px;
}
.hc-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  color: rgba(255,255,255,.55);
  font-size: 13px;
  border-top: 1px solid rgba(255,255,255,.1);
  padding-top: 16px;
}
.hc-meta svg {
  opacity: .75;
}
.badge {
  display: inline-flex;
  align-items: center;
  height: 24px;
  padding: 0 10px;
  border-radius: 999px;
  background: #f4e4cf;
  color: #8a3f0c;
  font-size: 12px;
  font-weight: 600;
  line-height: 1;
  white-space: nowrap;
}
.badge-gold {
  background: #ffe8bd;
  color: #9b5c02;
}
.badge-dark {
  background: rgba(255,255,255,.1);
  border: 1px solid rgba(255,255,255,.14);
  color: rgba(255,255,255,.82);
}

/* ========== section headings ========== */
.section-head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 14px;
  margin-bottom: 44px;
}
.section-head h2 {
  font-size: 32px;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--color-ink);
}
.section-lead {
  color: var(--color-ink-soft);
  font-size: 15px;
  margin-top: 10px;
  max-width: 640px;
}
.section-note {
  color: var(--color-ink-soft);
  font-size: 14px;
  white-space: nowrap;
}

/* ========== index directory ========== */
.section-paper {
  background: var(--color-paper);
}
.section-light {
  background: #fff;
}
.section-deep {
  background: #0d0c0a;
  color: #fff;
}
.index-list {
  border-top: 1px solid #ddd6cd;
}
.index-row {
  display: flex;
  align-items: center;
  gap: 22px;
  min-height: 74px;
  padding: 10px 4px;
  border-bottom: 1px solid #e3ddd4;
  transition: background .2s ease;
}
.index-row:hover {
  background: #fffaf4;
}
.index-num {
  font-size: 15px;
  font-weight: 800;
  color: #b8b0a6;
  width: 46px;
  flex-shrink: 0;
  letter-spacing: .02em;
  transition: color .2s;
  font-variant-numeric: tabular-nums;
}
.index-row:hover .index-num {
  color: var(--color-brand);
}
.index-row-main {
  flex: 1;
  min-width: 0;
}
.index-row-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--color-ink);
  line-height: 1.45;
  margin-bottom: 2px;
}
.index-row-desc {
  font-size: 14px;
  color: var(--color-ink-soft);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.index-row-meta {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  gap: 16px;
  color: var(--color-ink-soft);
  font-size: 13px;
}
.index-arrow {
  color: #b8b0a6;
  display: inline-flex;
  align-items: center;
  transition: transform .2s, color .2s;
}
.index-row:hover .index-arrow {
  color: var(--color-brand);
  transform: translateX(4px);
}

/* ========== feature cards ========== */
.feature-grid {
  display: grid;
  grid-template-columns: 1.32fr .88fr;
  gap: 24px;
  align-items: stretch;
}
.feature-card-main {
  position: relative;
  background: #fff;
  border: 1px solid #e5dfd7;
  border-radius: 16px;
  overflow: hidden;
  box-shadow: var(--shadow-card);
  transition: transform .2s, box-shadow .2s, border-color .2s;
}
.feature-card-main:hover {
  transform: translateY(-2px);
  box-shadow: 0 18px 34px -18px rgba(0,0,0,.2);
  border-color: rgba(232,93,12,.45);
}
.feature-main-cover {
  aspect-ratio: 16 / 9;
  overflow: hidden;
  position: relative;
  background: linear-gradient(135deg, #f8d6bb, #f4ede6);
}
.feature-main-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.feature-main-body {
  padding: 30px 28px 28px;
}
.feature-main-body h3 {
  font-size: 23px;
  line-height: 1.35;
  color: var(--color-ink);
  margin: 12px 0 10px;
}
.feature-main-body .feat-desc {
  color: var(--color-ink-soft);
  font-size: 15px;
  margin-bottom: 24px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.feature-side {
  display: flex;
  flex-direction: column;
  gap: 24px;
}
.mini-feat {
  flex: 1;
  display: flex;
  gap: 16px;
  background: #fff;
  border: 1px solid #e5dfd7;
  border-radius: 14px;
  padding: 12px;
  transition: border-color .2s, box-shadow .2s, transform .2s;
  box-shadow: var(--shadow-card);
}
.mini-feat:hover {
  transform: translateY(-2px);
  border-color: rgba(232,93,12,.4);
  box-shadow: 0 14px 26px -16px rgba(0,0,0,.16);
}
.mini-feat-cover {
  width: 112px;
  flex-shrink: 0;
  border-radius: 10px;
  overflow: hidden;
  background: #eedfd1;
}
.mini-feat-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  aspect-ratio: 1 / 1.15;
}
.mini-feat-body {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
}
.mini-feat-body h4 {
  font-size: 16px;
  line-height: 1.5;
  font-weight: 700;
  color: var(--color-ink);
  margin-bottom: 6px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.mini-feat-body p {
  color: var(--color-ink-soft);
  font-size: 13px;
  margin-top: auto;
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* ========== related deep list ========== */
.section-deep .section-head h2 {
  color: #fff;
}
.section-deep .section-lead {
  color: rgba(255,255,255,.62);
}
.related-list {
  display: flex;
  flex-direction: column;
}
.related-row {
  display: grid;
  grid-template-columns: 112px 1fr auto;
  gap: 20px;
  align-items: center;
  padding: 22px 0;
  border-bottom: 1px solid rgba(255,255,255,.09);
  transition: padding-left .2s ease;
}
.related-row:first-child {
  border-top: 1px solid rgba(255,255,255,.09);
}
.related-row:hover {
  padding-left: 6px;
}
.related-thumb {
  width: 112px;
  height: 76px;
  border-radius: 10px;
  overflow: hidden;
  background: rgba(255,255,255,.08);
}
.related-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.related-main {
  min-width: 0;
}
.related-main h3 {
  font-size: 18px;
  line-height: 1.5;
  font-weight: 700;
  color: #fff;
  margin-bottom: 4px;
  transition: color .2s;
}
.related-main h3 a:hover {
  color: var(--color-gold);
}
.related-main p {
  color: rgba(255,255,255,.54);
  font-size: 14px;
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 1;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.related-meta {
  color: rgba(255,255,255,.45);
  font-size: 13px;
  white-space: nowrap;
  text-align: right;
}

/* ========== CTA block ========== */
.cta-block {
  background: #fff;
  border: 1px solid #e3ddd3;
  border-radius: 16px;
  box-shadow: var(--shadow-card);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 26px;
  padding: 42px 48px;
}
.cta-block h2 {
  font-size: 26px;
  color: var(--color-ink);
  margin-bottom: 8px;
}
.cta-block p {
  color: var(--color-ink-soft);
  font-size: 15px;
}
.cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
}
.copy-hint {
  font-size: 13px;
  color: var(--color-brand-deep);
}

/* ========== news list ========== */
.news-wrap {
  max-width: 920px;
  margin-left: auto;
  margin-right: auto;
}
.news-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.news-row {
  display: flex;
  align-items: center;
  gap: 18px;
  background: #fff;
  border: 1px solid #e6e0d7;
  border-radius: 14px;
  padding: 20px 22px;
  transition: border-color .2s, box-shadow .2s, transform .2s;
  box-shadow: 0 1px 2px rgba(0,0,0,.03), 0 10px 26px -18px rgba(0,0,0,.16);
}
.news-row:hover {
  border-color: rgba(232,93,12,.32);
  transform: translateY(-1px);
  box-shadow: 0 16px 32px -20px rgba(0,0,0,.2);
}
.news-date {
  flex: 0 0 76px;
  text-align: center;
  padding-right: 18px;
  border-right: 1px solid #eee7de;
}
.news-date .d {
  font-size: 20px;
  font-weight: 800;
  color: var(--color-brand);
  line-height: 1.1;
  font-variant-numeric: tabular-nums;
}
.news-date .m {
  font-size: 12px;
  color: var(--color-ink-soft);
  margin-top: 3px;
  letter-spacing: .05em;
}
.news-main {
  flex: 1;
  min-width: 0;
}
.news-main h3 {
  font-size: 17px;
  line-height: 1.5;
  font-weight: 700;
  color: var(--color-ink);
  margin-bottom: 4px;
  display: -webkit-box;
  -webkit-line-clamp: 1;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.news-main p {
  font-size: 14px;
  color: var(--color-ink-soft);
  display: -webkit-box;
  -webkit-line-clamp: 1;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.news-cat {
  flex-shrink: 0;
}
.news-more {
  color: var(--color-ink-soft);
  font-size: 14px;
  font-weight: 500;
  white-space: nowrap;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: color .2s;
}
.news-more:hover {
  color: var(--color-brand);
}
.news-empty {
  border: 1px dashed #c9c0b5;
  border-radius: 16px;
  background: #fff;
  padding: 48px 24px;
  text-align: center;
  color: var(--color-ink-soft);
}
.news-empty svg {
  display: block;
  margin: 0 auto 16px;
  color: #d8cbbc;
}
.news-empty strong {
  display: block;
  font-size: 17px;
  color: var(--color-ink);
  margin-bottom: 6px;
  font-weight: 700;
}
.news-empty span {
  font-size: 14px;
}

/* ========== faq ========== */
.faq-list {
  max-width: 860px;
  margin: 0 auto;
}
.faq-item {
  background: #fff;
  border: 1px solid #e3ddd4;
  border-radius: 14px;
  margin-bottom: 14px;
  overflow: hidden;
  transition: border-color .2s, box-shadow .2s;
}
.faq-item.active {
  border-color: rgba(232,93,12,.45);
  box-shadow: var(--shadow-card);
}
.faq-question {
  display: flex;
  align-items: center;
  gap: 16px;
  width: 100%;
  text-align: left;
  padding: 20px 24px;
  background: #fff;
  font-weight: 700;
  font-size: 16px;
  color: var(--color-ink);
  line-height: 1.5;
}
.faq-qnum {
  font-size: 13px;
  color: var(--color-brand-deep);
  font-weight: 800;
  font-variant-numeric: tabular-nums;
  letter-spacing: .02em;
  background: #fce8d5;
  border-radius: 6px;
  width: 30px;
  height: 26px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.faq-question svg {
  margin-left: auto;
  flex-shrink: 0;
  transition: transform .25s ease;
  color: var(--color-ink-soft);
}
.faq-item.active .faq-question svg {
  transform: rotate(45deg);
  color: var(--color-brand);
}
.faq-panel {
  max-height: 0;
  overflow: hidden;
  transition: max-height .3s ease;
}
.faq-panel-inner {
  padding: 0 24px 22px 70px;
  color: var(--color-ink-soft);
  line-height: 1.9;
  font-size: 15px;
}

/* ========== footer ========== */
.site-footer {
  background: #0d0c0a;
  color: rgba(255,255,255,.7);
  margin-top: 0;
}
.footer-main {
  display: grid;
  grid-template-columns: 1.5fr 1fr .6fr;
  gap: 48px;
  padding: 64px 0 40px;
}
.footer-brand .brand-name {
  font-size: 19px;
}
.footer-desc {
  margin-top: 16px;
  max-width: 340px;
  color: rgba(255,255,255,.48);
  font-size: 14px;
  line-height: 1.8;
}
.footer-col h4 {
  color: #fff;
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 18px;
  letter-spacing: .02em;
}
.footer-links {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.footer-links a {
  color: rgba(255,255,255,.64);
  font-size: 14px;
  transition: color .2s;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.footer-links a:hover {
  color: var(--color-gold);
}
.footer-note {
  border-top: 1px solid rgba(255,255,255,.08);
  padding: 24px 0 32px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px 24px;
  justify-content: space-between;
  font-size: 13px;
  color: rgba(255,255,255,.38);
}
.footer-note a {
  color: rgba(255,255,255,.5);
}
.footer-note a:hover {
  color: var(--color-gold);
}

/* ========== responsive ========== */
@media (max-width: 1120px) {
  .main-nav {
    gap: 22px;
  }
  .command-search {
    width: 190px;
  }
  .hero-grid {
    gap: 36px;
  }
}
@media (max-width: 1024px) {
  .main-nav {
    display: none;
  }
  .mobile-menu-btn {
    display: inline-flex;
  }
  .command-search {
    display: none;
  }
  .hero {
    padding-top: 140px;
    padding-bottom: 80px;
  }
  .hero-grid {
    grid-template-columns: 1fr;
  }
  .hero-copy {
    max-width: 700px;
  }
  .hero-card-wrap {
    max-width: 560px;
  }
  .feature-grid {
    grid-template-columns: 1fr;
  }
  .feature-side {
    flex-direction: row;
  }
  .mini-feat {
    flex: 1;
  }
}
@media (max-width: 820px) {
  .site-section {
    padding: 64px 0;
  }
  .feature-side {
    flex-direction: column;
  }
  .mini-feat-cover {
    width: 90px;
  }
  .related-row {
    grid-template-columns: 76px 1fr;
    gap: 14px;
  }
  .related-thumb {
    width: 76px;
    height: 60px;
  }
  .related-meta {
    display: none;
  }
  .cta-block {
    padding: 32px 26px;
  }
  .footer-main {
    grid-template-columns: 1fr 1fr;
  }
}
@media (max-width: 640px) {
  .container-site {
    padding-left: 20px;
    padding-right: 20px;
  }
  .hero {
    min-height: auto;
    padding-top: 120px;
    padding-bottom: 62px;
  }
  .hero h1 {
    font-size: 34px;
    line-height: 1.3;
  }
  .hero-sub {
    font-size: 15px;
  }
  .hero-stats {
    gap: 14px;
    font-size: 13px;
  }
  .index-row {
    gap: 12px;
    min-height: 68px;
    align-items: flex-start;
    padding: 14px 2px;
  }
  .index-row-desc {
    white-space: normal;
  }
  .index-row-meta {
    display: none;
  }
  .index-num {
    width: 32px;
  }
  .section-head h2 {
    font-size: 27px;
  }
  .section-lead {
    font-size: 14px;
  }
  .news-row {
    padding: 16px;
    gap: 14px;
    align-items: flex-start;
    flex-wrap: wrap;
  }
  .news-date {
    flex-basis: 60px;
    border-right: none;
    padding-right: 0;
    text-align: left;
  }
  .news-date .d {
    font-size: 17px;
  }
  .news-main {
    flex-basis: 100%;
  }
  .news-main h3 {
    -webkit-line-clamp: 2;
  }
  .news-cat {
    display: none;
  }
  .cta-actions {
    width: 100%;
  }
  .cta-actions .btn {
    flex: 1;
  }
  .footer-main {
    grid-template-columns: 1fr;
    gap: 36px;
  }
  .faq-qnum {
    display: none;
  }
  .faq-panel-inner {
    padding-left: 24px;
  }
  .header-cta {
    width: 40px;
    padding: 0;
    font-size: 0;
    background: var(--color-brand);
    border-radius: 10px;
  }
  .header-cta::after {
    content: "合集";
    font-size: 13px;
    font-weight: 600;
  }
  .hero-actions .btn {
    width: calc(50% - 7px);
  }
}
@media (max-width: 420px) {
  .hero h1 {
    font-size: 30px;
  }
  .brand-name {
    font-size: 15px;
    letter-spacing: -0.01em;
  }
  .hc-body {
    padding: 18px;
  }
  .hc-title {
    font-size: 18px;
  }
  .hero-actions .btn {
    width: 100%;
  }
}

/* roulang page: category1 */
:root {
    --color-bg: #0d0c0a;
    --color-surface: #191612;
    --color-line: #2b2621;
    --color-paper: #f6f3ee;
    --color-card: #ffffff;
    --color-ink: #221e1a;
    --color-ink-soft: #6f665e;
    --color-brand: #e85d0c;
    --color-brand-deep: #c44106;
    --color-gold: #ffb53c;
    --font-ui: "PingFang SC", "Microsoft YaHei", "HarmonyOS Sans SC", sans-serif;
  }
  * { margin: 0; padding: 0; box-sizing: border-box; }
  html { scroll-behavior: smooth; }
  body {
    font-family: var(--font-ui);
    font-size: 16px;
    line-height: 1.75;
    background: var(--color-bg);
    color: var(--color-ink);
    -webkit-font-smoothing: antialiased;
  }
  img { max-width: 100%; display: block; }
  a { color: inherit; text-decoration: none; }
  button { font-family: inherit; cursor: pointer; }

  .container-site {
    max-width: 1180px;
    margin-left: auto;
    margin-right: auto;
    padding-left: 24px;
    padding-right: 24px;
  }
  @media (max-width: 640px) {
    .container-site { padding-left: 20px; padding-right: 20px; }
  }

  .site-header {
    position: sticky;
    top: 0;
    z-index: 60;
    background: #0d0c0a;
    border-bottom: 1px solid transparent;
    transition: background .3s ease, border-color .3s ease;
  }
  .site-header.is-scrolled {
    background: #14110e;
    border-bottom-color: rgba(255,255,255,.08);
  }
  .header-inner {
    height: 72px;
    display: flex;
    align-items: center;
    gap: 22px;
  }
  .brand-logo {
    display: inline-flex;
    align-items: center;
    gap: 11px;
    flex-shrink: 0;
  }
  .brand-mark {
    width: 36px;
    height: 36px;
    border-radius: 10px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #ff7a18 0%, #e85d0c 55%, #b83a03 100%);
    color: #fff;
    font-weight: 800;
    font-size: 15px;
    letter-spacing: .5px;
    box-shadow: 0 8px 20px rgba(232, 93, 12, .22);
  }
  .brand-name {
    font-size: 18px;
    font-weight: 700;
    color: #fff;
    letter-spacing: .2px;
    white-space: nowrap;
  }
  .site-header .main-nav {
    display: flex;
    align-items: center;
    gap: 30px;
    margin-left: auto;
    margin-right: 10px;
  }
  .site-header .main-nav a {
    position: relative;
    display: inline-flex;
    align-items: center;
    height: 72px;
    font-size: 15px;
    color: rgba(255,255,255,.58);
    font-weight: 500;
    transition: color .25s ease;
  }
  .site-header .main-nav a:hover {
    color: rgba(255,255,255,.92);
  }
  .site-header .main-nav a::after {
    content: "";
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    bottom: 17px;
    width: 18px;
    height: 2px;
    border-radius: 99px;
    background: var(--color-brand);
    opacity: 0;
    transition: opacity .25s ease, background .25s ease;
  }
  .site-header .main-nav a.active {
    color: #fff !important;
  }
  .site-header .main-nav a.active::after {
    opacity: 1;
  }

  .header-tools {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-shrink: 0;
  }
  .command-search {
    display: flex;
    align-items: center;
    gap: 8px;
    height: 40px;
    min-width: 208px;
    padding: 0 9px 0 12px;
    background: rgba(255,255,255,.05);
    border: 1px solid rgba(255,255,255,.09);
    border-radius: 10px;
    color: rgba(255,255,255,.42);
    cursor: text;
    transition: border-color .25s ease, background .25s ease;
  }
  .command-search:hover {
    border-color: rgba(255,255,255,.2);
    background: rgba(255,255,255,.07);
  }
  .command-search .search-placeholder {
    font-size: 14px;
    color: rgba(255,255,255,.4);
    flex: 1;
    white-space: nowrap;
  }
  .kbd {
    border: 1px solid rgba(255,255,255,.14);
    background: rgba(255,255,255,.08);
    color: rgba(255,255,255,.58);
    font-size: 11px;
    min-width: 28px;
    height: 22px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 6px;
    padding: 0 4px;
    letter-spacing: .4px;
  }
  .icon-btn {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: 1px solid transparent;
    color: rgba(255,255,255,.72);
    transition: background .25s ease, border-color .25s ease, color .25s ease;
  }
  .icon-btn:hover {
    background: rgba(255,255,255,.06);
    color: #fff;
  }
  .icon-btn svg { width: 19px; height: 19px; }
  .menu-toggle {
    display: none;
    width: 42px;
    height: 42px;
    border-radius: 10px;
    background: rgba(255,255,255,.04);
    border: 1px solid rgba(255,255,255,.1);
    color: #fff;
    align-items: center;
    justify-content: center;
  }
  .menu-toggle svg { width: 20px; height: 20px; }

  .mobile-menu {
    display: none;
    background: #14110e;
    border-top: 1px solid rgba(255,255,255,.06);
    padding-bottom: 18px;
  }
  .mobile-menu.open { display: block; }
  .mobile-menu .container-site {
    display: flex;
    flex-direction: column;
  }
  .mobile-menu a {
    display: block;
    padding: 13px 2px;
    color: rgba(255,255,255,.82);
    font-size: 16px;
    border-bottom: 1px solid rgba(255,255,255,.06);
  }
  .mobile-menu a:last-child { border-bottom: none; }
  .mobile-menu a.active { color: #ff7a18; }

  .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    height: 40px;
    padding: 0 18px;
    border-radius: 10px;
    font-size: 14px;
    font-weight: 600;
    transition: transform .25s ease, background .25s ease, color .25s ease, border-color .25s ease;
    white-space: nowrap;
  }
  .btn-primary {
    background: var(--color-brand);
    color: #fff;
    box-shadow: 0 10px 24px rgba(232, 93, 12, .2);
  }
  .btn-primary:hover {
    background: var(--color-brand-deep);
    transform: translateY(-1px);
  }
  .btn-primary:active { transform: translateY(0); }
  .btn-outline-light {
    background: transparent;
    border: 1px solid rgba(255,255,255,.32);
    color: rgba(255,255,255,.9);
  }
  .btn-outline-light:hover {
    border-color: rgba(255,255,255,.8);
    color: #fff;
  }
  .btn-dark {
    background: var(--color-ink);
    color: #fff;
  }
  .btn-dark:hover {
    background: #3b342d;
    transform: translateY(-1px);
  }

  .hero-region {
    position: relative;
    background:
      radial-gradient(ellipse at 12% 2%, rgba(232,93,12,.12), transparent 42%),
      radial-gradient(ellipse at 90% 70%, rgba(255,181,60,.08), transparent 40%),
      linear-gradient(rgba(13,12,10,.86), rgba(13,12,10,.92)),
      url('/assets/images/backpic/back-1.webp') center center / cover no-repeat;
    color: #fff;
    overflow: hidden;
    border-bottom: 1px solid rgba(255,255,255,.06);
  }
  .hero-inner {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 350px;
    gap: 64px;
    align-items: center;
    padding-top: 88px;
    padding-bottom: 84px;
  }
  .breadcrumb {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px;
    color: rgba(255,255,255,.5);
    font-size: 14px;
    margin-bottom: 22px;
  }
  .breadcrumb a { color: rgba(255,255,255,.6); }
  .breadcrumb a:hover { color: #ff9a4d; }
  .breadcrumb .sep { opacity: .4; }
  .breadcrumb-current { color: #f6a168; }
  .hero-title {
    font-size: clamp(34px, 4.4vw, 53px);
    line-height: 1.18;
    margin-bottom: 20px;
    color: #fff;
    letter-spacing: .5px;
    font-weight: 800;
  }
  .hero-title .accent { color: var(--color-gold); }
  .hero-desc {
    font-size: 17px;
    line-height: 1.9;
    color: rgba(255,255,255,.68);
    max-width: 620px;
    margin-bottom: 28px;
  }
  .hero-actions { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; margin-bottom: 30px; }
  .hero-meta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 10px 22px;
    padding-top: 8px;
  }
  .hero-meta span { color: rgba(255,255,255,.72); font-size: 14px; display: inline-flex; align-items: center; gap: 8px; }
  .hero-meta .dot-sep { width: 1px; height: 15px; background: rgba(255,255,255,.18); display: inline-block; }

  .hero-cover-card {
    border-radius: 16px;
    overflow: hidden;
    background: #171310;
    border: 1px solid rgba(255,255,255,.09);
    box-shadow: 0 24px 55px -20px rgba(0,0,0,.45);
  }
  .hero-cover-card img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; }
  .hero-cover-body { padding: 18px; }
  .hero-cover-body .tag-row {
    display: flex;
    gap: 8px; 
    margin-bottom: 10px;
  }
  .hero-cover-body h3 {
    color: #fff;
    font-size: 18px;
    line-height: 1.5;
    font-weight: 700;
    margin-bottom: 12px;
  }
  .cover-time {
    color: rgba(255,255,255,.48);
    font-size: 13px;
    display: flex;
    align-items: center;
    gap: 8px;
  }

  .badge {
    display: inline-flex;
    align-items: center;
    height: 24px;
    padding: 0 9px;
    border-radius: 6px;
    background: rgba(232,93,12,.18);
    border: 1px solid rgba(232,93,12,.28);
    color: #ffb37c;
    font-size: 12px;
    font-weight: 600;
    white-space: nowrap;
  }
  .badge-gold {
    background: rgba(255,181,60,.16);
    border-color: rgba(255,181,60,.3);
    color: #ffd08a;
  }

  .section-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--color-brand);
    font-weight: 700;
    font-size: 13px;
    letter-spacing: 1px;
    text-transform: uppercase;
    margin-bottom: 14px;
  }
  .section-eyebrow .line { width: 24px; height: 1px; background: var(--color-brand); opacity: .55; }
  .section-title {
    font-size: clamp(24px, 3.2vw, 36px);
    font-weight: 800;
    line-height: 1.28;
    color: var(--color-ink);
    margin-bottom: 14px;
  }
  .section-sub {
    font-size: 16px;
    color: var(--color-ink-soft);
    max-width: 720px;
  }

  .feature-band {
    background: var(--color-surface);
    color: #fff;
    padding: 72px 0 80px;
  }
  .feature-banner {
    position: relative;
    border-radius: 18px;
    overflow: hidden;
    background:
      linear-gradient(115deg, rgba(13,12,10,.86) 0%, rgba(13,12,10,.45) 58%, rgba(13,12,10,.2) 100%),
      url('/assets/images/backpic/back-2.webp') center center / cover no-repeat;
    border: 1px solid rgba(255,255,255,.08);
    min-height: 300px;
    display: flex;
    align-items: center;
    padding: 44px 48px;
  }
  .feature-banner .feature-content { max-width: 570px; }
  .feature-banner .tagline { color: #ff9a53; font-weight: 600; font-size: 14px; margin-bottom: 10px; display: flex; gap: 8px; align-items: center;}
  .feature-banner h2 { font-size: clamp(25px, 3vw, 34px); line-height: 1.4; margin-bottom: 14px; }
  .feature-banner p { color: rgba(255,255,255,.72); line-height: 1.85; margin-bottom: 22px; }
  .feature-banner .btn { margin-right: 12px; }

  .picks-section {
    background: var(--color-paper);
    padding: 92px 0 86px;
  }
  .picks-grid {
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    gap: 22px;
    margin-top: 36px;
  }
  .picks-card {
    grid-column: span 4;
    background: #fff;
    border: 1px solid rgba(0,0,0,.07);
    border-radius: 12px;
    overflow: hidden;
    transition: transform .3s ease, border-color .3s ease, box-shadow .3s ease;
    box-shadow: 0 1px 2px rgb(0 0 0 / 0.05), 0 12px 28px -14px rgb(0 0 0 / 0.12);
  }
  .picks-card:hover {
    transform: translateY(-3px);
    border-color: rgba(232,93,12,.5);
    box-shadow: 0 18px 36px -16px rgba(0,0,0,.2);
  }
  .picks-card img { width: 100%; aspect-ratio: 16 / 10; object-fit: cover; }
  .picks-body { padding: 20px 20px 18px; }
  .picks-body .pick-label {
    display: inline-flex;
    height: 24px;
    margin-bottom: 10px;
    padding: 0 9px;
    align-items: center;
    border-radius: 6px;
    background: #fff1e5;
    color: var(--color-brand-deep);
    font-size: 12px;
    font-weight: 700;
  }
  .picks-body h3 { font-size: 20px; line-height: 1.5; margin-bottom: 8px; color: var(--color-ink); font-weight: 800; }
  .picks-body p { font-size: 15px; line-height: 1.8; color: var(--color-ink-soft); }
  .picks-foot {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: 18px;
    padding-top: 12px;
    border-top: 1px solid rgba(0,0,0,.06);
  }
  .picks-foot .read-link { color: var(--color-brand); font-weight: 700; font-size: 14px; }
  .picks-foot .read-link:hover { text-decoration: underline; }
  .picks-card.wide-card { grid-column: span 5; }
  .picks-card.tall-card { grid-column: span 7; display: flex; }
  .picks-card.tall-card img { width: 45%; aspect-ratio: auto; object-fit: cover; }
  .tall-body { flex: 1; padding: 26px; }
  .tall-body h3 { font-size: 22px; }
  .tall-body p { font-size: 15px; }

  .index-section {
    background: #171310;
    color: #fff;
    padding: 90px 0;
  }
  .index-section .section-title { color: #fff; }
  .index-section .section-sub { color: rgba(255,255,255,.6); }
  .directory-list { margin-top: 40px; }
  .directory-item {
    display: flex;
    align-items: center;
    gap: 22px;
    min-height: 82px;
    padding: 8px 4px;
    border-bottom: 1px solid rgba(255,255,255,.08);
    transition: background .25s ease, padding-left .25s ease;
  }
  .directory-item:first-child { border-top: 1px solid rgba(255,255,255,.08);}
  .directory-item:hover { background: rgba(255,255,255,.035); padding-left: 14px; }
  .dir-num {
    font-size: 18px;
    font-weight: 800;
    color: rgba(255,255,255,.28);
    font-family: "SF Mono", "Fira Code", monospace;
    min-width: 42px;
    transition: color .25s ease;
  }
  .directory-item:hover .dir-num { color: var(--color-brand); }
  .dir-main { flex: 1; min-width: 0; }
  .dir-main h3 { color: #fff; font-size: 18px; font-weight: 700; margin-bottom: 3px; }
  .dir-main p { color: rgba(255,255,255,.5); font-size: 15px; overflow: hidden; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical;}
  .dir-right { text-align: right; color: rgba(255,255,255,.4); font-size: 13px; white-space: nowrap;}
  .dir-arrow { color: rgba(255,255,255,.4); font-size: 20px; font-weight: 300; transition: transform .3s ease .05s, color .3s ease; display: inline-block; }
  .directory-item:hover .dir-arrow { color: #ff8a3d; transform: translateX(4px); }
  .index-cta { text-align: center; margin-top: 40px; }
  .chips-row { display: flex; flex-wrap: wrap; gap: 10px; margin: 22px 0 4px; }
  .chip {
    display: inline-flex;
    align-items: center;
    height: 34px;
    padding: 0 15px;
    border-radius: 99px;
    background: rgba(255,255,255,.05);
    border: 1px solid rgba(255,255,255,.12);
    color: rgba(255,255,255,.7);
    font-size: 14px;
    transition: all .25s ease;
  }
  .chip:hover { color: #fff; border-color: rgba(255,255,255,.38); background: rgba(255,255,255,.08); }
  .chip-active {
    background: rgba(232,93,12,.14);
    border-color: rgba(232,93,12,.5);
    color: #ffb37c;
  }
  .chip-active:hover { background: rgba(232,93,12,.22); border-color: rgba(232,93,12,.7); color: #ffd6b3; }

  .guide-section { background: var(--color-paper); padding: 84px 0; }
  .guide-grid { display: grid; grid-template-columns: repeat(12, 1fr); gap: 32px; align-items: end; margin-top: 30px; }
  .guide-box {
    grid-column: span 4;
    background: #fff;
    border-radius: 14px;
    padding: 28px 24px;
    border: 1px solid rgba(0,0,0,.06);
    box-shadow: 0 12px 24px -16px rgba(0,0,0,.18);
  }
  .guide-icon {
    width: 44px;
    height: 44px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: #fff1e5;
    border-radius: 10px;
    color: var(--color-brand);
    font-size: 22px;
    font-weight: 800;
    margin-bottom: 16px;
  }
  .guide-box h3 { font-size: 18px; font-weight: 800; margin-bottom: 8px; color: var(--color-ink);}
  .guide-box p { color: var(--color-ink-soft); font-size: 15px; line-height: 1.8; }
  .guide-note {
    grid-column: span 6;
    background: var(--color-ink);
    color: #fff;
    border-radius: 14px;
    padding: 28px 30px;
  }
  .guide-note h3 { font-size: 19px; margin-bottom: 8px; }
  .guide-note p { color: rgba(255,255,255,.66); font-size: 15px; line-height: 1.85; }
  .guide-note .link { color: #ff9a53; font-weight: 700; display: inline-flex; gap: 4px; align-items: center; margin-top: 12px; }
  .guide-note .link:hover { color: #ffc39b; }

  .faq-section { background: #fff; padding: 88px 0 82px; }
  .faq-wrap { display: grid; grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr); gap: 56px; margin-top: 30px;}
  .faq-list { max-width: 720px; }
  .faq-item {
    border: 1px solid rgba(0,0,0,.08);
    border-radius: 12px;
    margin-bottom: 14px;
    background: #fbf9f6;
    overflow: hidden;
    transition: border-color .25s ease, box-shadow .25s ease;
  }
  .faq-item:hover { border-color: rgba(232,93,12,.25); }
  .faq-item[open] { border-color: rgba(232,93,12,.45); box-shadow: 0 14px 30px -16px rgba(0,0,0,.15); }
  .faq-item summary {
    display: flex;
    align-items: flex-start;
    gap: 14px;
    list-style: none;
    padding: 18px 20px;
    cursor: pointer;
    color: var(--color-ink);
    font-weight: 700;
    font-size: 16px;
    line-height: 1.6;
  }
  .faq-item summary::-webkit-details-marker { display: none; }
  .faq-item summary .num { color: var(--color-brand); font-weight: 700; font-size: 16px; opacity: .9; font-family: monospace;}
  .faq-answer { padding: 0 20px 20px 52px; color: var(--color-ink-soft); line-height: 1.85; font-size: 15px; }
  .faq-extra { color: var(--color-ink-soft); font-size: 15px; line-height: 1.85; }
  .faq-extra a { color: var(--color-brand); font-weight: 700; }
  .faq-extra a:hover { text-decoration: underline; }

  .cta-section {
    position: relative;
    background:
      radial-gradient(ellipse at 14% 20%, rgba(232,93,12,.14), transparent 44%),
      linear-gradient(rgba(13,12,10,.94), rgba(13,12,10,.96)),
      url('/assets/images/backpic/back-3.webp') center / cover no-repeat;
    color: #fff;
    padding: 90px 0;
  }
  .cta-inner { display: flex; align-items: center; gap: 64px; justify-content: space-between; flex-wrap: wrap; }
  .cta-copy { max-width: 700px; }
  .cta-copy h2 { font-size: clamp(26px, 3.2vw, 38px); line-height: 1.4; margin-bottom: 14px; color: #fff;}
  .cta-copy p { color: rgba(255,255,255,.68); font-size: 17px; line-height: 1.9; }
  .cta-actions { display: flex; gap: 14px; flex-wrap: wrap; }

  .site-footer { background: #0d0c0a; color: rgba(255,255,255,.7); padding: 58px 0 22px; border-top: 1px solid rgba(255,255,255,.06); }
  .footer-main { display: grid; grid-template-columns: minmax(0, 1.3fr) .8fr .8fr; gap: 40px; padding-bottom: 36px; }
  .footer-brand .brand-logo { margin-bottom: 14px; }
  .footer-desc { font-size: 15px; color: rgba(255,255,255,.5); line-height: 1.8; max-width: 450px; margin-top: 14px;}
  .footer-col h4 { color: #fff; font-size: 15px; margin-bottom: 16px; font-weight: 600; }
  .footer-links { display: flex; flex-direction: column; gap: 10px; }
  .footer-links a { font-size: 15px; color: rgba(255,255,255,.58); transition: color .25s ease, padding-left .25s ease; }
  .footer-links a:hover { color: #ffa05f; padding-left: 3px; }
  .footer-note {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 12px;
    padding-top: 24px;
    border-top: 1px solid rgba(255,255,255,.07);
    font-size: 13px;
    color: rgba(255,255,255,.4);
  }

  @media (max-width: 1024px) {
    .site-header .main-nav { display: none; }
    .menu-toggle { display: inline-flex; }
    .header-tools .command-search { display: none; }
    .hero-inner { grid-template-columns: 1fr; gap: 32px; padding-top: 60px; padding-bottom: 60px; }
    .hero-cover-card { max-width: 430px; }
    .picks-card, .picks-card.wide-card, .picks-card.tall-card { grid-column: span 6; }
    .guide-box, .guide-note { grid-column: span 12; }
    .guide-note { grid-column: span 7; }
    .footer-main { grid-template-columns: 1fr 1fr; }
  }
  @media (max-width: 640px) {
    .header-inner { height: 64px; gap: 14px; }
    .header-tools .btn-header { display: none; }
    .header-tools .command-search { display: none; }
    .brand-name { font-size: 16px; }
    .hero-title { font-size: 32px; }
    .hero-desc { font-size: 15px; }
    .picks-card, .picks-card.wide-card, .picks-card.tall-card { grid-column: span 12; }
    .picks-card.tall-card { flex-direction: column; }
    .picks-card.tall-card img { width: 100%; aspect-ratio: 16 / 10; }
    .feature-banner { padding: 28px 22px; min-height: 250px; }
    .directory-item { flex-wrap: wrap; padding: 14px 2px; gap: 10px; }
    .dir-right { display: none; }
    .footer-main { grid-template-columns: 1fr; gap: 30px; }
    .footer-note { flex-direction: column; }
    .faq-wrap { grid-template-columns: 1fr; gap: 24px; }
    .faq-answer { padding-left: 20px; }
    .feature-banner p { max-width: 100%; }
    .hero-actions .btn { width: 100%; }
    .cta-inner { flex-direction: column; align-items: flex-start; gap: 24px; }
  }
  @media (min-width: 641px) and (max-width: 1024px) {
    .header-tools .btn-header { display: inline-flex; }
  }

/* roulang page: article */
:root {
            --color-bg: #0d0c0a;
            --color-surface: #191612;
            --color-line: #2b2621;
            --color-paper: #f6f3ee;
            --color-card: #ffffff;
            --color-ink: #221e1a;
            --color-ink-soft: #6f665e;
            --color-brand: #e85d0c;
            --color-brand-deep: #c44106;
            --color-gold: #ffb53c;
            --color-accent: #6c3cd9;
            --radius-card: 16px;
            --radius-box: 10px;
            --shadow-card: 0 1px 2px rgb(0 0 0 / 0.05), 0 12px 28px -14px rgb(0 0 0 / 0.12);
            --shadow-float: 0 18px 36px -18px rgb(0 0 0 / 0.24);
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            font-family: "PingFang SC", "Microsoft YaHei", "HarmonyOS Sans SC", sans-serif;
            background: var(--color-paper);
            color: var(--color-ink);
            font-size: 16px;
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
        }

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

        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.2s ease, background-color 0.2s ease, border-color 0.2s ease, opacity 0.2s ease;
        }

        ul,
        ol {
            margin: 0;
            padding: 0;
        }

        button,
        input {
            font-family: inherit;
        }

        .container-site {
            max-width: 1180px;
            margin-inline: auto;
            padding-inline: 24px;
        }

        .site-header {
            position: sticky;
            top: 0;
            z-index: 50;
            background: var(--color-bg);
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .site-header.scrolled {
            box-shadow: 0 16px 34px rgba(0, 0, 0, 0.28);
        }

        .header-shell {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 18px;
            min-height: 72px;
        }

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

        .brand-mark {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 34px;
            height: 34px;
            border-radius: 10px;
            background: var(--color-brand);
            color: #fff;
            font-weight: 800;
            font-size: 15px;
            letter-spacing: 0.02em;
            box-shadow: inset 0 1px rgba(255, 255, 255, 0.16), 0 8px 18px rgba(232, 93, 12, 0.28);
        }

        .brand-name {
            color: #fff;
            font-size: 17px;
            font-weight: 700;
            letter-spacing: 0.02em;
            white-space: nowrap;
        }

        .main-nav.desktop-nav {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .main-nav-link {
            position: relative;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 8px 12px;
            color: rgba(255, 255, 255, 0.66);
            font-size: 14px;
            border-radius: 9px;
            transition: color 0.2s ease, background 0.2s ease;
        }

        .main-nav-link:hover {
            color: #fff;
            background: rgba(255, 255, 255, 0.06);
        }

        .main-nav-link.active {
            color: #fff;
        }

        .main-nav-link.active::after {
            content: "";
            position: absolute;
            left: 50%;
            bottom: -4px;
            width: 20px;
            height: 2px;
            border-radius: 2px;
            background: var(--color-brand);
            transform: translateX(-50%);
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .search-combo {
            display: flex;
            align-items: center;
            gap: 10px;
            height: 40px;
            min-width: 236px;
            padding: 0 10px 0 12px;
            border-radius: 12px;
            background: #1f1b16;
            border: 1px solid rgba(255, 255, 255, 0.09);
            color: rgba(255, 255, 255, 0.44);
        }

        .search-combo .search-label {
            flex: 1;
            font-size: 13px;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .search-combo .kbd-key {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 28px;
            height: 22px;
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: 6px;
            font-size: 12px;
            color: rgba(255, 255, 255, 0.56);
        }

        .icon-btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 11px;
            color: rgba(255, 255, 255, 0.58);
            background: transparent;
            border: 1px solid transparent;
            transition: background 0.2s, color 0.2s, border 0.2s;
        }

        .icon-btn:hover {
            color: #fff;
            background: rgba(255, 255, 255, 0.07);
            border-color: rgba(255, 255, 255, 0.09);
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            height: 40px;
            padding: 0 18px;
            border-radius: 11px;
            background: var(--color-brand);
            color: #fff;
            font-size: 14px;
            font-weight: 600;
            border: 1px solid transparent;
            white-space: nowrap;
            transition: background 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
        }

        .btn-primary:hover {
            background: var(--color-brand-deep);
            transform: translateY(-1px);
            box-shadow: 0 12px 24px rgba(232, 93, 12, 0.22);
        }

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

        .btn-ghost {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            height: 40px;
            padding: 0 18px;
            border-radius: 11px;
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.26);
            color: #fff;
            font-size: 14px;
            font-weight: 600;
            white-space: nowrap;
            transition: border-color 0.2s, color 0.2s, background 0.2s;
        }

        .btn-ghost:hover {
            border-color: var(--color-brand);
            color: var(--color-gold);
        }

        .mobile-panel {
            display: none;
            border-top: 1px solid rgba(255, 255, 255, 0.07);
            background: #14110e;
            padding: 14px 24px 20px;
        }

        .mobile-panel.is-open {
            display: block;
        }

        .mobile-panel a {
            display: block;
            padding: 12px 2px;
            color: rgba(255, 255, 255, 0.78);
            font-size: 15px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }

        .mobile-panel a:last-child {
            border-bottom: 0;
        }

        .mobile-panel a:hover,
        .mobile-panel a.active {
            color: var(--color-brand);
        }

        .mobile-toggle {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 42px;
            height: 42px;
            margin-left: 4px;
            color: #fff;
            border-radius: 10px;
        }

        .page-lead {
            background: var(--color-bg);
            color: #f6f3ee;
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
        }

        .page-lead-inner {
            padding-top: 36px;
            padding-bottom: 40px;
        }

        .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 8px;
            margin-bottom: 24px;
            color: rgba(255, 255, 255, 0.46);
            font-size: 13px;
        }

        .breadcrumb a {
            color: rgba(255, 255, 255, 0.62);
        }

        .breadcrumb a:hover {
            color: var(--color-gold);
        }

        .breadcrumb-slash {
            color: rgba(255, 255, 255, 0.24);
        }

        .post-title {
            max-width: 880px;
            margin: 0;
            font-size: clamp(30px, 4.4vw, 46px);
            line-height: 1.22;
            letter-spacing: -0.025em;
            font-weight: 800;
            color: #fff;
        }

        .article-meta {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 12px 22px;
            margin-top: 24px;
            color: rgba(255, 255, 255, 0.58);
            font-size: 13px;
        }

        .meta-chip {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            height: 26px;
            padding: 0 10px;
            background: rgba(232, 93, 12, 0.14);
            border: 1px solid rgba(232, 93, 12, 0.18);
            color: var(--color-gold);
            border-radius: 999px;
            font-size: 12px;
        }

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

        .cms-tdk-placeholder {
            display: none;
        }

        .article-main {
            background: var(--color-paper);
        }

        .article-main-inner {
            max-width: 760px;
            margin-inline: auto;
            padding: 40px 24px 64px;
        }

        .article-card {
            background: var(--color-card);
            border: 1px solid rgba(43, 38, 33, 0.1);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            padding: 36px;
        }

        .article-flow {
            color: var(--color-ink);
            font-size: 16px;
            line-height: 1.9;
        }

        .article-flow > *:first-child {
            margin-top: 0;
        }

        .article-flow p {
            margin: 0 0 1.2em;
        }

        .article-flow h2 {
            font-size: clamp(22px, 3vw, 29px);
            margin: 0.9em 0 0.5em;
            line-height: 1.4;
            color: #171310;
            font-weight: 800;
            letter-spacing: -0.01em;
        }

        .article-flow h3 {
            font-size: 19px;
            margin: 1.2em 0 0.5em;
            color: #191612;
            font-weight: 700;
        }

        .article-flow a {
            color: var(--color-brand-deep);
            text-decoration: underline;
            text-underline-offset: 3px;
        }

        .article-flow a:hover {
            color: var(--color-brand);
        }

        .article-flow img {
            border-radius: 10px;
            border: 1px solid rgba(43, 38, 33, 0.1);
            margin: 1.6em 0;
        }

        .article-flow blockquote {
            margin: 1.4em 0;
            padding: 12px 18px;
            background: rgba(232, 93, 12, 0.06);
            border-left: 3px solid var(--color-brand);
            border-radius: 4px 10px 10px 4px;
            color: #4b433c;
        }

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

        .article-flow li {
            margin-bottom: 0.35em;
        }

        .article-flow code {
            padding: 2px 6px;
            background: rgba(43, 38, 33, 0.07);
            border-radius: 6px;
            font-size: 0.9em;
        }

        .post-bottom-actions {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 10px;
            margin-top: 42px;
            padding-top: 24px;
            border-top: 1px solid rgba(43, 38, 33, 0.1);
        }

        .post-return {
            margin-top: 22px;
        }

        .return-title {
            margin: 58px 0 18px;
            font-size: 18px;
            font-weight: 800;
            color: var(--color-ink);
            letter-spacing: -0.01em;
        }

        .post-return-grid {
            display: grid;
            gap: 16px;
            grid-template-columns: 1fr;
        }

        @media (min-width: 640px) {
            .post-return-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        .return-card {
            display: flex;
            align-items: center;
            gap: 14px;
            border: 1px solid rgba(43, 38, 33, 0.1);
            background: #fff;
            border-radius: 14px;
            padding: 12px 14px 12px 12px;
            box-shadow: 0 1px 2px rgb(0 0 0 / 0.03);
            transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
        }

        .return-card:hover {
            transform: translateY(-2px);
            border-color: rgba(232, 93, 12, 0.42);
            box-shadow: var(--shadow-card);
        }

        .return-card img {
            width: 88px;
            height: 74px;
            object-fit: cover;
            border-radius: 10px;
            background: #eee;
            flex-shrink: 0;
        }

        .return-card .return-card-title {
            display: block;
            color: var(--color-ink);
            font-size: 15px;
            font-weight: 700;
            line-height: 1.4;
        }

        .return-card .return-card-sub {
            display: block;
            margin-top: 5px;
            color: var(--color-ink-soft);
            font-size: 13px;
        }

        .empty-box {
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            text-align: center;
            min-height: 360px;
            background: #fff;
            border-radius: 18px;
            border: 1px dashed rgba(43, 38, 33, 0.16);
            padding: 36px 24px;
        }

        .empty-sign {
            width: 74px;
            height: 74px;
            border-radius: 22px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: var(--color-paper);
            border: 1px solid rgba(43, 38, 33, 0.1);
            color: var(--color-brand);
            margin-bottom: 16px;
        }

        .site-footer {
            background: var(--color-bg);
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding-top: 56px;
            padding-bottom: 28px;
            color: rgba(255, 255, 255, 0.6);
        }

        .footer-main {
            display: grid;
            gap: 32px;
            grid-template-columns: 1fr;
            padding-bottom: 34px;
        }

        @media (min-width: 768px) {
            .footer-main {
                grid-template-columns: 1.6fr 1fr 1fr;
            }
        }

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

        .footer-desc {
            max-width: 360px;
            margin: 16px 0 0;
            color: rgba(255, 255, 255, 0.48);
            font-size: 14px;
            line-height: 1.8;
        }

        .footer-col h4 {
            margin: 0 0 12px;
            color: #fff;
            font-size: 14px;
            font-weight: 600;
        }

        .footer-links {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .footer-links a {
            color: rgba(255, 255, 255, 0.5);
            font-size: 14px;
        }

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

        .footer-note {
            display: flex;
            flex-wrap: wrap;
            gap: 8px 24px;
            justify-content: space-between;
            border-top: 1px solid rgba(255, 255, 255, 0.07);
            padding-top: 22px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.34);
        }

        @media (max-width: 520px) {
            .container-site {
                padding-inline: 20px;
            }

            .header-shell {
                gap: 8px;
            }

            .brand-name {
                font-size: 15px;
            }

            .article-card {
                padding: 24px 20px;
            }

            .page-lead-inner {
                padding-top: 28px;
                padding-bottom: 32px;
            }
        }

/* roulang page: category2 */
:root {
            --color-bg: #0d0c0a;
            --color-surface: #191612;
            --color-line: #2b2621;
            --color-paper: #f6f3ee;
            --color-card: #ffffff;
            --color-ink: #221e1a;
            --color-ink-soft: #6f665e;
            --color-brand: #e85d0c;
            --color-brand-deep: #c44106;
            --color-gold: #ffb53c;
            --color-accent: #6c3cd9;
            --radius-lg: 16px;
            --radius-md: 10px;
        }

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

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

        body {
            margin: 0;
            font-family: "PingFang SC", "Microsoft YaHei", "HarmonyOS Sans SC", "Helvetica Neue", sans-serif;
            font-size: 16px;
            line-height: 1.75;
            color: var(--color-ink);
            background: var(--color-bg);
            -webkit-font-smoothing: antialiased;
        }

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

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

        button,
        input {
            font: inherit;
        }

        button {
            cursor: pointer;
        }

        h1,
        h2,
        h3,
        h4,
        p,
        figure,
        blockquote,
        ul,
        ol,
        dl,
        dd {
            margin: 0;
            padding: 0;
        }

        .container-site {
            max-width: 1180px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        .section-pad {
            padding-top: 96px;
            padding-bottom: 96px;
        }

        .section-pad-sm {
            padding-top: 64px;
            padding-bottom: 64px;
        }

        .kicker-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 700;
            letter-spacing: 0.08em;
            color: var(--color-brand);
        }

        .kicker-label::before {
            content: "";
            width: 18px;
            height: 2px;
            background: currentColor;
            border-radius: 99px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            min-height: 42px;
            padding: 0 20px;
            border-radius: 10px;
            font-weight: 600;
            font-size: 15px;
            border: 1px solid transparent;
            transition: all .18s ease;
        }

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

        .btn-primary:hover {
            background: var(--color-brand-deep);
            transform: translateY(-1px);
            box-shadow: 0 8px 20px -8px rgb(232 93 12 / .45);
        }

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

        .btn-outline {
            background: transparent;
            border-color: rgba(255, 255, 255, .38);
            color: #fff;
        }

        .btn-outline:hover {
            border-color: var(--color-brand);
            color: #fff;
            background: rgba(232, 93, 12, .08);
        }

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

        .btn-ink:hover {
            background: #0d0a08;
            transform: translateY(-1px);
        }

        .text-link {
            color: var(--color-brand-deep);
            font-weight: 600;
            border-bottom: 1px solid transparent;
            transition: border-color .2s, color .2s;
        }

        .text-link:hover {
            color: var(--color-brand-deep);
            border-bottom-color: currentColor;
        }

        .site-header {
            position: sticky;
            top: 0;
            z-index: 60;
            height: 72px;
            background: rgba(13, 12, 10, 0.68);
            border-bottom: 1px solid transparent;
            transition: background .35s, border-color .35s, box-shadow .35s;
        }

        .site-header.is-scrolled {
            background: #14110e;
            border-bottom-color: rgba(255, 255, 255, .08);
        }

        .site-header .container-site {
            display: flex;
            align-items: center;
            height: 100%;
            gap: 28px;
        }

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

        .brand-mark {
            width: 34px;
            height: 34px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: var(--color-brand);
            color: #fff;
            font-weight: 800;
            font-size: 15px;
            border-radius: 9px;
            letter-spacing: -0.02em;
        }

        .brand-name {
            color: #fff;
            font-weight: 700;
            font-size: 16px;
            white-space: nowrap;
            letter-spacing: .02em;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 6px;
            margin-left: auto;
            margin-right: auto;
        }

        .main-nav a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 8px 14px;
            font-size: 15px;
            font-weight: 500;
            color: rgba(255, 255, 255, .66);
            position: relative;
            transition: color .18s;
        }

        .main-nav a:hover {
            color: #ffffff;
        }

        .main-nav a.active {
            color: #ffffff;
        }

        .main-nav a.active:after {
            content: "";
            position: absolute;
            left: 50%;
            bottom: -2px;
            width: 20px;
            height: 2px;
            transform: translateX(-50%);
            border-radius: 99px;
            background: var(--color-brand);
        }

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

        .cmd-search {
            display: flex;
            align-items: center;
            gap: 8px;
            width: 218px;
            height: 38px;
            padding: 0 10px 0 12px;
            border: 1px solid rgba(255, 255, 255, .14);
            border-radius: 10px;
            color: rgba(255, 255, 255, .42);
            background: rgba(255, 255, 255, .05);
            transition: background .2s, border-color .2s;
        }

        .cmd-search:hover {
            background: rgba(255, 255, 255, .09);
        }

        .cmd-search svg {
            width: 15px;
            height: 15px;
            color: rgba(255, 255, 255, .5);
            flex-shrink: 0;
        }

        .cmd-search span {
            font-size: 13px;
            color: rgba(255, 255, 255, .45);
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
            flex: 1;
        }

        .cmd-kbd {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 28px;
            height: 22px;
            border-radius: 6px;
            background: rgba(255, 255, 255, .12);
            color: rgba(255, 255, 255, .55);
            font-family: inherit;
            font-size: 11px;
            font-weight: 600;
            flex-shrink: 0;
        }

        .action-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 38px;
            border-radius: 10px;
            color: rgba(255, 255, 255, .78);
            background: transparent;
            border: 1px solid rgba(255, 255, 255, .14);
            transition: background .2s, border-color .2s, color .2s;
        }

        .action-icon:hover {
            color: #fff;
            border-color: rgba(255, 255, 255, .3);
            background: rgba(255, 255, 255, .06);
        }

        .header-cta {
            height: 38px;
            min-height: 38px;
            padding: 0 16px;
            font-size: 14px;
            border-radius: 10px;
        }

        .nav-toggle {
            display: none;
            width: 44px;
            height: 40px;
            margin-left: 8px;
            border: 1px solid rgba(255, 255, 255, .14);
            border-radius: 10px;
            background: transparent;
            color: #fff;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: background .2s;
        }

        .nav-toggle:hover {
            background: rgba(255, 255, 255, .08);
        }

        .nav-toggle svg {
            width: 22px;
            height: 22px;
        }

        .mobile-nav {
            display: none;
            position: fixed;
            top: 72px;
            left: 0;
            right: 0;
            z-index: 59;
            background: #14110e;
            border-top: 1px solid rgba(255, 255, 255, .08);
            padding: 18px 20px 24px;
            box-shadow: 0 20px 40px rgb(0 0 0 / .35);
        }

        .mobile-nav.open {
            display: block;
        }

        .mobile-nav a {
            display: block;
            padding: 13px 6px;
            color: rgba(255, 255, 255, .82);
            font-weight: 500;
            border-bottom: 1px solid rgba(255, 255, 255, .07);
        }

        .mobile-nav a.active {
            color: var(--color-brand);
        }

        .mobile-nav .mobile-actions {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-top: 16px;
        }

        .mobile-nav .mobile-actions .btn {
            flex: 1;
        }

        .hero-section {
            position: relative;
            background-color: var(--color-surface);
            color: #fff;
            padding: 112px 0 72px;
            overflow: hidden;
            border-bottom: 1px solid rgba(255, 255, 255, .08);
        }

        .hero-bg {
            position: absolute;
            inset: 0;
            z-index: 0;
            background-image: url("/assets/images/backpic/back-1.webp");
            background-size: cover;
            background-position: center right;
            padding-top: 0;
        }

        .hero-bg:after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(90deg, rgba(25, 22, 18, .98) 0%, rgba(25, 22, 18, .84) 42%, rgba(25, 22, 18, .18) 78%, rgba(25, 22, 18, .58) 100%);
        }

        .hero-inner {
            position: relative;
            z-index: 2;
            display: grid;
            grid-template-columns: minmax(0, 1.5fr) minmax(280px, .9fr);
            gap: 64px;
            align-items: end;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            height: 30px;
            padding: 0 12px;
            border-radius: 999px;
            background: rgba(232, 93, 12, .14);
            border: 1px solid rgba(232, 93, 12, .35);
            color: #ffb987;
            font-size: 12.5px;
            font-weight: 600;
            letter-spacing: .02em;
        }

        .hero-title {
            font-size: 44px;
            line-height: 1.22;
            font-weight: 800;
            letter-spacing: .01em;
            color: #fff;
            margin-top: 20px;
            max-width: 760px;
        }

        .hero-subtitle {
            margin-top: 18px;
            font-size: 16.5px;
            line-height: 1.9;
            color: rgba(255, 255, 255, .72);
            max-width: 620px;
        }

        .hero-btn-row {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            margin-top: 32px;
        }

        .hero-meta-line {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 10px;
            margin-top: 34px;
            padding-top: 18px;
            border-top: 1px solid rgba(255, 255, 255, .1);
        }

        .hero-meta-line span {
            font-size: 13px;
            color: rgba(255, 255, 255, .54);
            display: inline-flex;
            align-items: center;
            gap: 7px;
        }

        .hero-meta-line span+span:before {
            content: "";
            width: 3px;
            height: 3px;
            border-radius: 50%;
            background: rgba(255, 255, 255, .35);
            display: inline-block;
        }

        .hero-cover {
            background: rgba(23, 19, 16, .75);
            border: 1px solid rgba(255, 255, 255, .12);
            border-radius: 18px;
            overflow: hidden;
            padding: 12px;
            box-shadow: 0 20px 50px -18px rgb(0 0 0 / .5);
        }

        .hero-cover img {
            height: 238px;
            width: 100%;
            object-fit: cover;
            border-radius: 12px;
        }

        .hero-cover-name {
            padding: 16px 10px 6px;
            color: #fff;
            font-weight: 700;
            font-size: 17px;
        }

        .hero-cover-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            padding: 2px 10px 8px;
        }

        .hero-cover-tags span {
            height: 24px;
            padding: 0 9px;
            display: inline-flex;
            align-items: center;
            font-size: 12px;
            color: var(--color-gold);
            background: rgba(255, 181, 60, .12);
            border: 1px solid rgba(255, 181, 60, .3);
            border-radius: 999px;
        }

        .hero-cover-time {
            padding: 6px 10px 8px;
            font-size: 12px;
            color: rgba(255, 255, 255, .48);
        }

        .feature-banner {
            margin: 0 auto;
            position: relative;
            border-radius: 18px;
            overflow: hidden;
            min-height: 280px;
            background: var(--color-surface);
            border: 1px solid rgba(255, 255, 255, .1);
        }

        .feature-banner .backdrop {
            position: absolute;
            inset: 0;
            background-image: url("/assets/images/backpic/back-2.webp");
            background-size: cover;
            background-position: center;
            background-color: var(--color-surface);
        }

        .feature-banner .backdrop:before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(105deg, rgba(13, 12, 10, .92) 0%, rgba(13, 12, 10, .6) 50%, rgba(13, 12, 10, .18) 100%);
        }

        .feature-content {
            position: relative;
            z-index: 1;
            padding: 60px 60px;
            max-width: 78%;
        }

        .feature-content .tag-row {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-bottom: 20px;
        }

        .feature-content .tag-row span {
            height: 28px;
            padding: 0 13px;
            border-radius: 999px;
            background: rgba(255, 255, 255, .09);
            border: 1px solid rgba(255, 255, 255, .16);
            font-size: 12.5px;
            color: #fff;
            display: inline-flex;
            align-items: center;
        }

        .feature-content h2 {
            font-size: 32px;
            line-height: 1.3;
            color: #fff;
            font-weight: 750;
        }

        .feature-content p {
            color: rgba(255, 255, 255, .72);
            margin-top: 14px;
            line-height: 1.85;
            font-size: 15px;
            max-width: 560px;
        }

        .feature-content .btn-row {
            margin-top: 24px;
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }

        .paper-block {
            background: var(--color-paper);
            color: var(--color-ink);
        }

        .section-title-h2 {
            font-size: 30px;
            line-height: 1.35;
            font-weight: 800;
            color: var(--color-ink);
        }

        .section-desc {
            margin-top: 12px;
            color: var(--color-ink-soft);
            font-size: 15px;
            max-width: 680px;
        }

        .numbered-guide {
            margin-top: 44px;
            display: grid;
            grid-template-columns: repeat(2, minmax(0, 1fr));
            gap: 0;
            background: #fff;
            border-radius: 16px;
            overflow: hidden;
            box-shadow: var(--shadow-card);
            border: 1px solid rgba(34, 30, 26, .07);
        }

        .numbered-guide-item {
            padding: 30px 30px 32px;
            border-right: 1px solid rgba(34, 30, 26, .06);
            border-bottom: 1px solid rgba(34, 30, 26, .06);
            transition: background .2s;
        }

        .numbered-guide-item:hover {
            background: #fffaf5;
        }

        .guide-num {
            font-size: 13px;
            font-weight: 800;
            color: var(--color-brand);
            letter-spacing: .04em;
            display: block;
        }

        .numbered-guide-item h3 {
            font-size: 19px;
            font-weight: 700;
            margin-top: 16px;
            color: var(--color-ink);
        }

        .numbered-guide-item p {
            margin-top: 8px;
            color: var(--color-ink-soft);
            font-size: 15px;
            line-height: 1.8;
        }

        .chip-line {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 20px;
        }

        .chip {
            height: 32px;
            padding: 0 14px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border-radius: 999px;
            background: #fff;
            border: 1px solid rgba(34, 30, 26, .12);
            font-size: 13px;
            color: var(--color-ink-soft);
            transition: border-color .18s, color .18s, background .18s;
        }

        .chip:hover {
            border-color: var(--color-brand);
            color: var(--color-brand-deep);
            background: #fff5ec;
        }

        .dark-block {
            background: var(--color-bg);
            color: #fff;
        }

        .hot-grid {
            display: grid;
            grid-template-columns: 1.05fr .95fr;
            gap: 24px;
            margin-top: 44px;
        }

        .cover-card {
            background: #fff;
            border-radius: 16px;
            border: 1px solid rgba(34, 30, 26, .08);
            overflow: hidden;
            transition: transform .18s ease, box-shadow .22s ease, border-color .2s;
            box-shadow: var(--shadow-card);
        }

        .cover-card:hover {
            transform: translateY(-2px);
            border-color: rgba(232, 93, 12, .5);
            box-shadow: 0 18px 38px -16px rgb(0 0 0 / .14);
        }

        .cover-media {
            width: 100%;
            display: block;
            aspect-ratio: 16 / 8.5;
            object-fit: cover;
        }

        .cover-body {
            padding: 22px 24px 26px;
        }

        .tag-badge {
            height: 24px;
            display: inline-flex;
            align-items: center;
            padding: 0 9px;
            border-radius: 6px;
            background: #fff2e6;
            color: #b44a08;
            font-size: 12px;
            font-weight: 700;
        }

        .tag-gold {
            background: #fff5dc;
            color: #8a5a00;
        }

        .cover-card h3 {
            font-size: 19px;
            font-weight: 750;
            color: var(--color-ink);
            margin-top: 12px;
            line-height: 1.5;
        }

        .cover-card p {
            margin-top: 8px;
            color: var(--color-ink-soft);
            font-size: 14.5px;
            line-height: 1.75;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .cover-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-top: 18px;
        }

        .cover-read {
            font-size: 14px;
            font-weight: 650;
            color: var(--color-brand-deep);
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        .cover-read svg {
            width: 14px;
            height: 14px;
        }

        .cover-time {
            font-size: 12.5px;
            color: #9a918a;
        }

        .news-list {
            margin-top: 40px;
            background: #fff;
            border-radius: 16px;
            border: 1px solid rgba(34, 30, 26, .08);
            overflow: hidden;
        }

        .news-item {
            display: flex;
            align-items: flex-start;
            gap: 24px;
            padding: 26px 32px;
            border-bottom: 1px solid rgba(34, 30, 26, .08);
            transition: background .2s;
        }

        .news-item:last-child {
            border-bottom: none;
        }

        .news-item:hover {
            background: #fffaf4;
        }

        .news-index {
            font-size: 20px;
            font-weight: 800;
            color: rgba(34, 30, 26, .2);
            width: 34px;
            flex-shrink: 0;
            font-family: "SF Mono", "Cascadia Mono", monospace;
            transition: color .2s;
        }

        .news-item:hover .news-index {
            color: var(--color-brand);
        }

        .news-tag {
            flex-shrink: 0;
            font-size: 12px;
            font-weight: 700;
            color: #8e5500;
            background: #fff3d8;
            padding: 4px 10px;
            border-radius: 999px;
            margin-top: 4px;
        }

        .news-main {
            flex: 1;
            min-width: 0;
        }

        .news-main h3 {
            font-size: 18px;
            color: var(--color-ink);
            font-weight: 700;
            line-height: 1.5;
        }

        .news-main h3 a {
            transition: color .18s;
        }

        .news-main h3 a:hover {
            color: var(--color-brand-deep);
        }

        .news-main p {
            margin-top: 6px;
            color: var(--color-ink-soft);
            font-size: 14px;
            line-height: 1.7;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .news-right {
            flex-shrink: 0;
            font-size: 13px;
            color: #9a918a;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            white-space: nowrap;
        }

        .step-flow {
            margin-top: 44px;
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 18px;
        }

        .step-card {
            border-radius: 14px;
            background: #fff;
            border: 1px solid rgba(34, 30, 26, .08);
            padding: 26px 22px;
            position: relative;
            transition: transform .18s, border-color .2s, box-shadow .2s;
        }

        .step-card:hover {
            transform: translateY(-3px);
            border-color: rgba(232, 93, 12, .4);
            box-shadow: 0 12px 24px -10px rgb(34 30 26 / .18);
        }

        .step-dot {
            width: 30px;
            height: 30px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: var(--color-brand);
            border-radius: 8px;
            color: #fff;
            font-weight: 800;
            font-size: 14px;
        }

        .step-card h3 {
            margin-top: 18px;
            font-size: 18px;
            font-weight: 700;
            color: var(--color-ink);
        }

        .step-card p {
            margin-top: 8px;
            font-size: 14.5px;
            line-height: 1.75;
            color: var(--color-ink-soft);
        }

        .cta-wrapper {
            background: var(--color-paper);
        }

        .cta-card {
            position: relative;
            overflow: hidden;
            border-radius: 18px;
            background: var(--color-surface);
            border: 1px solid rgba(255, 255, 255, .1);
            padding: 48px 56px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 30px;
        }

        .cta-card:before {
            content: "";
            position: absolute;
            right: -60px;
            top: -80px;
            width: 260px;
            height: 260px;
            background: radial-gradient(circle, rgba(232, 93, 12, .28), transparent 66%);
            pointer-events: none;
        }

        .cta-copy h2 {
            font-size: 27px;
            line-height: 1.4;
            color: #fff;
            font-weight: 750;
        }

        .cta-copy p {
            margin-top: 10px;
            color: rgba(255, 255, 255, .65);
            font-size: 15px;
            max-width: 560px;
        }

        .cta-btns {
            display: flex;
            gap: 12px;
            flex-shrink: 0;
            flex-wrap: wrap;
        }

        .faq-list {
            margin-top: 42px;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 18px;
            align-items: start;
        }

        .faq-item {
            background: #fff;
            border: 1px solid rgba(34, 30, 26, .08);
            border-radius: 14px;
            overflow: hidden;
            transition: border-color .2s, box-shadow .2s;
        }

        .faq-item:hover {
            border-color: rgba(232, 93, 12, .35);
        }

        .faq-item summary {
            list-style: none;
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 22px 24px;
            font-size: 16px;
            font-weight: 650;
            color: var(--color-ink);
            cursor: pointer;
        }

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

        .faq-item summary .faq-num {
            color: var(--color-brand);
            font-weight: 800;
            font-size: 13px;
            letter-spacing: 0.04em;
        }

        .faq-item[open] {
            border-color: rgba(232, 93, 12, .4);
        }

        .faq-item[open] summary {
            border-bottom: 1px solid rgba(34, 30, 26, .06);
        }

        .faq-answer {
            padding: 4px 24px 24px 51px;
            color: var(--color-ink-soft);
            line-height: 1.85;
            font-size: 15px;
        }

        .site-footer {
            background: var(--color-bg);
            border-top: 1px solid rgba(255, 255, 255, .07);
            padding-top: 70px;
            padding-bottom: 40px;
            color: rgba(255, 255, 255, .64);
        }

        .footer-main {
            display: grid;
            grid-template-columns: 2.2fr 1fr 1fr;
            gap: 56px;
        }

        .footer-brand .brand-name {
            font-size: 18px;
        }

        .footer-desc {
            margin-top: 18px;
            font-size: 14px;
            color: rgba(255, 255, 255, .48);
            line-height: 1.85;
            max-width: 360px;
        }

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

        .footer-links {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .footer-links a {
            color: rgba(255, 255, 255, .56);
            font-size: 14px;
            transition: color .2s, padding-left .2s;
            line-height: 1.5;
        }

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

        .footer-note {
            display: flex;
            align-items: center;
            justify-content: space-between;
            border-top: 1px solid rgba(255, 255, 255, .07);
            margin-top: 60px;
            padding-top: 24px;
            font-size: 13px;
            color: rgba(255, 255, 255, .4);
            gap: 12px;
            flex-wrap: wrap;
        }

        @media (max-width: 1024px) {
            .container-site {
                padding-left: 22px;
                padding-right: 22px;
            }

            .header-actions .cmd-search {
                display: none;
            }

            .hero-inner {
                gap: 40px;
                grid-template-columns: 1fr 360px;
            }

            .hero-title {
                font-size: 36px;
            }

            .feature-content {
                padding: 46px 40px;
                max-width: 88%;
            }

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

            .cta-card {
                flex-direction: column;
                align-items: flex-start;
                padding: 40px;
            }

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

        @media (max-width: 820px) {
            .site-header .container-site {
                gap: 14px;
            }

            .main-nav {
                display: none;
            }

            .header-actions .action-icon {
                display: none;
            }

            .header-cta {
                width: auto;
                padding: 0 12px;
                font-size: 13px;
            }

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

            .section-pad {
                padding-top: 70px;
                padding-bottom: 70px;
            }

            .hero-section {
                padding: 72px 0 56px;
            }

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

            .hero-cover {
                max-width: 480px;
            }

            .section-title-h2 {
                font-size: 27px;
            }

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

            .numbered-guide-item {
                border-right: none;
            }

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

            .news-item {
                flex-wrap: wrap;
                padding: 22px 22px;
                gap: 14px;
            }

            .news-right {
                margin-left: 58px;
            }

            .cta-card {
                padding: 34px 26px;
            }

            .footer-main {
                grid-template-columns: 1fr 1fr;
                gap: 40px;
            }
        }

        @media (max-width: 520px) {
            .container-site {
                padding-left: 20px;
                padding-right: 20px;
            }

            .brand-name {
                font-size: 15px;
            }

            .header-cta {
                display: none;
            }

            .hero-title {
                font-size: 30px;
            }

            .hero-subtitle {
                font-size: 15.5px;
            }

            .feature-content {
                padding: 30px 24px;
                max-width: 100%;
            }

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

            .cta-wrapper .cta-btns {
                width: 100%;
            }

            .cta-wrapper .btn {
                width: 100%;
            }

            .footer-main {
                grid-template-columns: 1fr;
                gap: 28px;
            }

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

/* roulang page: category3 */
:root {
      --color-bg: #0d0c0a;
      --color-surface: #191612;
      --color-line: #2b2621;
      --color-paper: #f6f3ee;
      --color-card: #ffffff;
      --color-ink: #221e1a;
      --color-ink-soft: #6f665e;
      --color-brand: #e85d0c;
      --color-brand-deep: #c44106;
      --color-gold: #ffb53c;
      --color-accent: #6c3cd9;
      --radius-lg: 16px;
      --radius-md: 10px;
      --shadow-card: 0 1px 2px rgb(0 0 0 / 0.05), 0 12px 28px -14px rgb(0 0 0 / 0.12);
    }

    * {
      box-sizing: border-box;
    }

    html {
      scroll-behavior: smooth;
    }

    body {
      margin: 0;
      font-family: "PingFang SC", "Microsoft YaHei", "HarmonyOS Sans SC", sans-serif;
      background-color: #0d0c0a;
      color: #221e1a;
      line-height: 1.75;
      -webkit-font-smoothing: antialiased;
    }

    body.no-scroll {
      overflow: hidden;
    }

    h1,
    h2,
    h3 {
      line-height: 1.25;
      margin: 0;
    }

    p {
      margin: 0;
    }

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

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

    button,
    input {
      font-family: inherit;
    }

    button {
      border: 0;
      background: none;
      cursor: pointer;
    }

    .container-site {
      max-width: 1180px;
      margin: 0 auto;
      padding-left: 24px;
      padding-right: 24px;
    }

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

    .tone-dark {
      background-color: #0d0c0a;
      color: #f6f3ee;
    }

    .tone-paper {
      background-color: #f6f3ee;
      color: #221e1a;
    }

    .section-head {
      max-width: 760px;
      margin-bottom: 44px;
    }

    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      margin-bottom: 16px;
      color: #e85d0c;
      font-size: 13px;
      font-weight: 700;
      letter-spacing: 0.08em;
      text-transform: uppercase;
    }

    .eyebrow-light {
      color: #ffb53c;
    }

    .eyebrow::before {
      content: "";
      width: 18px;
      height: 2px;
      background: currentColor;
      display: inline-block;
      border-radius: 2px;
    }

    .section-title {
      font-size: clamp(28px, 3vw, 38px);
      font-weight: 800;
      letter-spacing: -0.02em;
      margin-bottom: 14px;
    }

    .section-copy {
      color: #6f665e;
      max-width: 720px;
    }

    .tone-dark .section-copy {
      color: rgba(246, 243, 238, 0.66);
    }

    .surface-card {
      background: rgba(23, 19, 16, 0.9);
      border: 1px solid rgba(255, 255, 255, 0.08);
      border-radius: 16px;
    }

    .paper-card {
      background: #ffffff;
      border: 1px solid #ece3d9;
      border-radius: 16px;
      box-shadow: var(--shadow-card);
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      min-height: 44px;
      border-radius: 10px;
      padding: 10px 20px;
      font-weight: 700;
      font-size: 15px;
      line-height: 1.2;
      border: 1px solid transparent;
      transition: background 0.2s ease, border-color 0.2s ease, color 0.2s ease, transform 0.15s ease, box-shadow 0.2s ease;
      white-space: nowrap;
    }

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

    .btn-primary:hover {
      background: var(--color-brand-deep);
      transform: translateY(-1px);
      box-shadow: 0 12px 24px -10px rgb(232 93 12 / 0.5);
    }

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

    .btn-outline-light {
      border-color: rgba(255, 255, 255, 0.32);
      color: #f6f3ee;
    }

    .btn-outline-light:hover {
      border-color: #e85d0c;
      color: #e85d0c;
      background: rgba(232, 93, 12, 0.08);
    }

    .btn-outline-dark {
      border-color: rgba(34, 30, 26, 0.25);
      color: #221e1a;
    }

    .btn-outline-dark:hover {
      border-color: #e85d0c;
      color: #c44106;
      background: rgba(232, 93, 12, 0.06);
    }

    /* Header */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 60;
      background: transparent;
      transition: background 0.3s ease, border-color 0.3s ease;
      border-bottom: 1px solid transparent;
    }

    .site-header.is-scrolled {
      background: #14110e;
      border-bottom-color: rgba(255, 255, 255, 0.08);
    }

    .header-inner {
      height: 72px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 20px;
    }

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

    .brand-mark {
      width: 36px;
      height: 36px;
      display: flex;
      align-items: center;
      justify-content: center;
      background: #e85d0c;
      color: #fff;
      font-weight: 800;
      font-size: 14px;
      border-radius: 10px;
      letter-spacing: -0.02em;
      box-shadow: inset 0 0 0 1px rgb(255 255 255 / 0.12);
    }

    .brand-name {
      color: #f6f3ee;
      font-weight: 800;
      font-size: 17px;
      letter-spacing: -0.01em;
    }

    .main-nav {
      display: none;
      align-items: center;
      gap: 24px;
      flex-shrink: 0;
    }

    .main-nav a {
      position: relative;
      padding: 8px 2px;
      font-size: 15px;
      color: rgba(246, 243, 238, 0.68);
      font-weight: 600;
      transition: color 0.2s ease;
    }

    .main-nav a:hover {
      color: #f6f3ee;
    }

    .main-nav a.active {
      color: #f6f3ee;
    }

    .main-nav a::after {
      content: "";
      position: absolute;
      left: 50%;
      bottom: -3px;
      width: 20px;
      height: 2px;
      border-radius: 2px;
      background: #e85d0c;
      transform: translateX(-50%) scaleX(0);
      transition: transform 0.2s ease;
    }

    .main-nav a:hover::after,
    .main-nav a.active::after {
      transform: translateX(-50%) scaleX(1);
    }

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

    .search-box {
      display: none;
      align-items: center;
      gap: 8px;
      height: 38px;
      min-width: 220px;
      padding: 0 10px 0 12px;
      background: rgba(255, 255, 255, 0.06);
      border: 1px solid rgba(255, 255, 255, 0.12);
      border-radius: 10px;
      color: rgba(246, 243, 238, 0.6);
      transition: border-color 0.2s ease, background 0.2s ease;
    }

    .search-box:hover {
      border-color: rgba(255, 255, 255, 0.24);
      background: rgba(255, 255, 255, 0.08);
    }

    .search-placeholder {
      flex: 1;
      text-align: left;
      font-size: 14px;
      white-space: nowrap;
    }

    .search-kbd {
      width: 26px;
      height: 20px;
      display: flex;
      align-items: center;
      justify-content: center;
      border-radius: 6px;
      background: rgba(255, 255, 255, 0.14);
      color: rgba(246, 243, 238, 0.9);
      font-size: 12px;
      font-weight: 700;
    }

    .icon-btn {
      width: 38px;
      height: 38px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      border-radius: 10px;
      color: rgba(246, 243, 238, 0.8);
      border: 1px solid rgba(255, 255, 255, 0.12);
      background: rgba(255, 255, 255, 0.04);
      transition: border-color 0.2s ease, color 0.2s ease, background 0.2s ease;
    }

    .icon-btn:hover {
      border-color: rgba(232, 93, 12, 0.7);
      color: #ffb53c;
      background: rgba(232, 93, 12, 0.1);
    }

    .btn-header {
      min-height: 38px;
      padding: 8px 16px;
      font-size: 14px;
    }

    .menu-button {
      display: inline-flex;
    }

    .mobile-nav {
      display: none;
      max-height: 0;
      overflow: hidden;
      background: #14110e;
      transition: max-height 0.3s ease;
    }

    .mobile-nav.is-open {
      max-height: 520px;
      overflow-y: auto;
    }

    .mobile-nav-links {
      padding: 12px 24px 24px;
      border-top: 1px solid rgba(255, 255, 255, 0.08);
    }

    .mobile-nav-links a {
      display: block;
      padding: 12px 0;
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
      color: rgba(246, 243, 238, 0.82);
      font-weight: 600;
      font-size: 16px;
    }

    .mobile-nav-links a.active {
      color: #e85d0c;
    }

    @media (min-width: 1024px) {
      .main-nav {
        display: flex;
        flex: 1;
        justify-content: center;
      }

      .menu-button,
      .mobile-search-trigger {
        display: none !important;
      }

      .mobile-nav {
        display: none !important;
      }
    }

    @media (min-width: 1180px) {
      .search-box {
        display: flex;
      }

      .mobile-search-trigger {
        display: none !important;
      }
    }

    @media (max-width: 1179px) {
      .search-box {
        display: none;
      }

      .mobile-search-trigger {
        display: inline-flex;
      }
    }

    /* Command search layer */
    .cmd-layer {
      position: fixed;
      inset: 0;
      z-index: 80;
      display: flex;
      align-items: flex-start;
      justify-content: center;
      padding: 12vh 20px 20px;
      opacity: 0;
      visibility: hidden;
      transition: opacity 0.2s ease, visibility 0.2s ease;
    }

    .cmd-layer.is-open {
      opacity: 1;
      visibility: visible;
    }

    .cmd-backdrop {
      position: absolute;
      inset: 0;
      background: rgba(5, 4, 3, 0.72);
    }

    .cmd-panel {
      position: relative;
      width: min(680px, 100%);
      background: #171310;
      border: 1px solid rgba(255, 255, 255, 0.12);
      border-radius: 18px;
      overflow: hidden;
      box-shadow: 0 40px 80px -20px rgb(0 0 0 / 0.6);
      transform: translateY(10px);
      transition: transform 0.25s ease;
    }

    .cmd-layer.is-open .cmd-panel {
      transform: translateY(0);
    }

    .cmd-input {
      display: flex;
      align-items: center;
      gap: 12px;
      padding: 16px 18px;
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }

    .cmd-input input {
      flex: 1;
      background: transparent;
      border: 0;
      outline: none;
      color: #f6f3ee;
      font-size: 16px;
    }

    .cmd-input input::placeholder {
      color: rgba(246, 243, 238, 0.4);
    }

    .cmd-suggest {
      padding: 16px;
    }

    .cmd-suggest-label {
      color: rgba(246, 243, 238, 0.44);
      font-size: 13px;
      margin: 0 4px 10px;
    }

    .cmd-suggest a {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 11px 12px;
      border-radius: 10px;
      color: rgba(246, 243, 238, 0.8);
      font-weight: 500;
      transition: background 0.2s ease;
    }

    .cmd-suggest a:hover {
      background: rgba(255, 255, 255, 0.06);
      color: #ffb53c;
    }

    /* Hero */
    .hero {
      background-color: #0d0c0a;
      background-image: linear-gradient(115deg, rgba(13, 12, 10, 0.98) 20%, rgba(13, 12, 10, 0.74) 60%, rgba(23, 14, 8, 0.88) 100%), url("/assets/images/backpic/back-2.webp");
      background-size: cover;
      background-position: center;
      padding: 64px 0 56px;
      color: #f6f3ee;
      border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    }

    .hero-grid {
      display: grid;
      grid-template-columns: 1fr;
      gap: 48px;
      align-items: center;
    }

    .hero-title {
      font-size: clamp(30px, 5vw, 48px);
      font-weight: 800;
      line-height: 1.2;
      letter-spacing: -0.03em;
      margin: 14px 0 18px;
    }

    .hero-title span {
      color: #e85d0c;
    }

    .hero-desc {
      font-size: 17px;
      max-width: 580px;
      color: rgba(246, 243, 238, 0.72);
      line-height: 1.85;
      margin-bottom: 28px;
    }

    .hero-breadcrumb {
      font-size: 13px;
      color: rgba(246, 243, 238, 0.5);
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .hero-breadcrumb a:hover {
      color: #ffb53c;
    }

    .hero-breadcrumb .crumb-divider {
      opacity: 0.6;
    }

    .hero-breadcrumb .crumb-current {
      color: rgba(246, 243, 238, 0.82);
    }

    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
    }

    .hero-note {
      width: 100%;
      margin-top: 18px;
      font-size: 13px;
      color: rgba(246, 243, 238, 0.48);
    }

    .hero-keyline {
      display: flex;
      flex-wrap: wrap;
      gap: 10px 0;
      align-items: center;
      margin-top: 30px;
      padding-top: 20px;
      border-top: 1px solid rgba(255, 255, 255, 0.1);
      font-size: 14px;
      color: rgba(246, 243, 238, 0.66);
    }

    .hero-keyline span + span {
      margin-left: 14px;
      padding-left: 14px;
      border-left: 1px solid rgba(255, 255, 255, 0.14);
    }

    .hero-card {
      background: #16110e;
      border: 1px solid rgba(255, 255, 255, 0.1);
      border-radius: 20px;
      overflow: hidden;
      box-shadow: 0 32px 70px -28px rgb(0 0 0 / 0.75);
    }

    .hero-card-img {
      position: relative;
      min-height: 190px;
    }

    .hero-card-img img {
      width: 100%;
      height: 200px;
      object-fit: cover;
    }

    .hero-card-body {
      padding: 22px;
    }

    .hero-card-body .badge-gold {
      display: inline-flex;
      background: #ffb53c;
      color: #221e1a;
      font-size: 12px;
      font-weight: 700;
      padding: 3px 9px;
      border-radius: 6px;
      margin-bottom: 10px;
    }

    .hero-card-body h3 {
      font-size: 20px;
      font-weight: 800;
    }

    .hero-card-body p {
      color: rgba(246, 243, 238, 0.68);
      font-size: 14px;
      margin-top: 8px;
    }

    .hero-card-footer {
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-top: 16px;
      color: rgba(246, 243, 238, 0.46);
      font-size: 13px;
    }

    @media (min-width: 1024px) {
      .hero {
        padding: 74px 0 72px;
      }

      .hero-grid {
        grid-template-columns: 1.05fr 0.95fr;
        gap: 52px;
      }
    }

    /* Chips */
    .chip-row {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      margin-bottom: 38px;
    }

    .chip {
      display: inline-flex;
      align-items: center;
      height: 28px;
      padding: 0 12px;
      border-radius: 999px;
      font-size: 13px;
      background: #fff;
      border: 1px solid #e2d5c8;
      color: #6f665e;
      font-weight: 600;
      transition: all 0.2s ease;
      white-space: nowrap;
    }

    .chip:hover {
      border-color: #e85d0c;
      color: #c44106;
    }

    .chip.active {
      background: #fbe8da;
      border-color: #e85d0c;
      color: #c44106;
    }

    /* Index rows */
    .index-list {
      border-top: 1px solid #e2d8cd;
      border-bottom: 1px solid #e2d8cd;
    }

    .index-row {
      display: grid;
      grid-template-columns: 56px 1fr auto;
      align-items: center;
      gap: 14px;
      padding: 20px 8px;
      background: transparent;
      transition: background 0.2s ease, padding 0.2s ease;
      border-bottom: 1px solid #e4dbd1;
    }

    .index-row:last-child {
      border-bottom: 0;
    }

    .index-row:hover {
      background: #fff;
      box-shadow: 0 1px 12px rgb(0 0 0 / 0.04);
    }

    .index-num {
      font-weight: 800;
      color: #bfae9f;
      font-size: 17px;
      transition: color 0.2s ease;
      letter-spacing: 0.02em;
    }

    .index-row:hover .index-num {
      color: #e85d0c;
    }

    .index-main strong {
      display: block;
      font-size: 18px;
      color: #221e1a;
      margin-bottom: 4px;
    }

    .index-main p {
      color: #6f665e;
      font-size: 14px;
      max-width: 700px;
    }

    .index-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      justify-content: flex-end;
      align-items: center;
    }

    .mini-tag {
      background: #f6f3ee;
      border: 1px solid #e5d9cf;
      color: #6f665e;
      font-size: 12px;
      border-radius: 6px;
      padding: 3px 8px;
      white-space: nowrap;
    }

    .index-arrow {
      color: #b7a495;
      font-size: 22px;
      transition: transform 0.2s ease, color 0.2s ease;
      width: 30px;
      text-align: right;
    }

    .index-row:hover .index-arrow {
      transform: translateX(4px);
      color: #e85d0c;
    }

    @media (max-width: 720px) {
      .index-row {
        grid-template-columns: 40px 1fr;
        gap: 10px;
      }

      .index-tags {
        display: none;
      }

      .index-arrow {
        grid-column: 2 / 3;
        text-align: left;
        width: auto;
      }
    }

    /* Flow / steps */
    .step-grid {
      display: grid;
      grid-template-columns: 1fr;
      gap: 18px;
      margin-top: 18px;
    }

    .step-card {
      background: #171310;
      border: 1px solid rgba(255, 255, 255, 0.08);
      border-radius: 16px;
      padding: 24px;
      transition: border-color 0.2s ease, transform 0.2s ease, background 0.2s ease;
    }

    .step-card:hover {
      border-color: rgba(232, 93, 12, 0.7);
      transform: translateY(-2px);
      background: #1b1612;
    }

    .step-num {
      font-size: 13px;
      font-weight: 800;
      color: #ffb53c;
      letter-spacing: 0.06em;
      display: inline-block;
      margin-bottom: 12px;
    }

    .step-card h3 {
      color: #f6f3ee;
      font-size: 18px;
      font-weight: 800;
      margin-bottom: 10px;
    }

    .step-card p {
      color: rgba(246, 243, 238, 0.62);
      font-size: 14px;
      line-height: 1.75;
      margin-bottom: 14px;
    }

    .step-tag {
      color: rgba(255, 181, 60, 0.9);
      font-size: 13px;
      font-weight: 600;
    }

    @media (min-width: 640px) {
      .step-grid {
        grid-template-columns: repeat(2, 1fr);
      }
    }

    @media (min-width: 1080px) {
      .step-grid {
        grid-template-columns: repeat(4, 1fr);
      }
    }

    /* Update list */
    .update-row {
      display: grid;
      grid-template-columns: minmax(150px, 0.3fr) minmax(0, 1fr) auto;
      align-items: center;
      gap: 20px;
      padding: 18px 0;
      border-bottom: 1px solid #e5dbd2;
    }

    .update-row:first-child {
      border-top: 1px solid #e5dbd2;
    }

    .update-thumb {
      border-radius: 10px;
      overflow: hidden;
      height: 54px;
      max-width: 84px;
    }

    .update-thumb img {
      height: 54px;
      width: 84px;
      object-fit: cover;
    }

    .update-main strong {
      display: block;
      font-size: 17px;
      color: #221e1a;
      line-height: 1.45;
      transition: color 0.2s ease;
    }

    .update-main strong:hover {
      color: #e85d0c;
    }

    .update-main p {
      color: #6f665e;
      font-size: 14px;
      display: -webkit-box;
      -webkit-line-clamp: 2;
      -webkit-box-orient: vertical;
      overflow: hidden;
      margin-top: 4px;
    }

    .update-date {
      color: #8a7c6d;
      font-size: 13px;
      white-space: nowrap;
      font-weight: 600;
    }

    .update-more {
      color: #6f665e;
      font-size: 13px;
      white-space: nowrap;
    }

    .update-more:hover {
      color: #e85d0c;
    }

    @media (max-width: 760px) {
      .update-row {
        grid-template-columns: 1fr;
        gap: 8px;
      }

      .update-thumb {
        display: none;
      }

      .update-date {
        color: #a1724a;
      }
    }

    /* Collection CTA */
    .collect-card {
      background: #fff;
      border: 1px solid #ece2d8;
      border-radius: 20px;
      box-shadow: var(--shadow-card);
      overflow: hidden;
    }

    .collect-grid {
      display: grid;
      grid-template-columns: 1fr;
    }

    .collect-body {
      padding: 36px;
    }

    .collect-img {
      min-height: 220px;
      background: linear-gradient(rgba(13, 12, 10, 0.1), rgba(13, 12, 10, 0.6)), url("/assets/images/backpic/back-3.webp") center / cover;
    }

    @media (min-width: 960px) {
      .collect-grid {
        grid-template-columns: 1fr 1fr;
      }
    }

    .collect-title {
      font-size: 26px;
      font-weight: 800;
      margin-bottom: 10px;
    }

    .collect-desc {
      color: #6f665e;
      font-size: 15px;
      max-width: 460px;
    }

    .collect-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin-top: 24px;
    }

    /* FAQ */
    .faq-layout {
      display: grid;
      grid-template-columns: 1fr;
      gap: 24px;
    }

    .faq-list {
      display: grid;
      gap: 12px;
    }

    .faq-item {
      background: #fff;
      border: 1px solid #e8ded4;
      border-radius: 14px;
      box-shadow: 0 1px 2px rgb(0 0 0 / 0.02);
      overflow: hidden;
    }

    .faq-item[open] {
      border-color: #e85d0c;
      box-shadow: 0 1px 2px rgb(0 0 0 / 0.04), 0 0 0 1px rgb(232 93 12 / 0.4);
    }

    .faq-item summary {
      cursor: pointer;
      list-style: none;
      display: flex;
      align-items: center;
      gap: 16px;
      padding: 18px 20px;
      font-weight: 700;
      color: #221e1a;
      font-size: 16px;
    }

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

    .faq-num {
      color: #e85d0c;
      font-weight: 800;
      font-size: 14px;
      letter-spacing: 0.08em;
    }

    .faq-content {
      padding: 0 22px 20px 48px;
      color: #6f665e;
      font-size: 15px;
      line-height: 1.85;
    }

    @media (min-width: 980px) {
      .faq-layout {
        grid-template-columns: 0.8fr 1.2fr;
        align-items: start;
      }
    }

    /* Footer */
    .site-footer {
      background: #0d0c0a;
      color: #c9c0b7;
      padding: 64px 0 28px;
      border-top: 1px solid rgba(255, 255, 255, 0.08);
    }

    .footer-main {
      display: grid;
      grid-template-columns: 1fr;
      gap: 28px;
      padding-bottom: 36px;
      border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }

    .footer-brand .brand-name {
      color: #f6f3ee;
      font-size: 19px;
    }

    .footer-brand .brand-mark {
      width: 38px;
      height: 38px;
      font-size: 15px;
    }

    .footer-desc {
      margin-top: 16px;
      color: rgba(246, 243, 238, 0.55);
      max-width: 380px;
      line-height: 1.8;
      font-size: 14px;
    }

    .footer-col h4 {
      color: #f6f3ee;
      font-size: 15px;
      font-weight: 700;
      margin: 0 0 14px;
    }

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

    .footer-links a {
      color: rgba(246, 243, 238, 0.62);
      font-size: 14px;
      transition: color 0.2s ease;
      width: fit-content;
    }

    .footer-links a:hover {
      color: #ffb53c;
    }

    .footer-note {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      justify-content: space-between;
      color: rgba(246, 243, 238, 0.4);
      font-size: 13px;
      padding-top: 26px;
    }

    @media (min-width: 720px) {
      .footer-main {
        grid-template-columns: 1.3fr 0.8fr 0.8fr;
        gap: 40px;
      }
    }

    @media (max-width: 640px) {
      .section-block {
        padding: 64px 0;
      }

      .container-site {
        padding-left: 20px;
        padding-right: 20px;
      }

      .brand-name {
        font-size: 15px;
      }
    }