/* roulang page: index */
:root {
  --ht-primary: #1D4A3A;
  --ht-primary-light: #2A5C4A;
  --ht-accent: #C8A15A;
  --ht-bg: #F7F6F3;
  --ht-bg-light: #F1EFE9;
  --ht-dark: #12231D;
  --ht-dark-2: #14201A;
  --ht-text: #22252A;
  --ht-text-secondary: #6B7280;
  --ht-text-muted: #9CA3AF;
  --ht-border: rgba(0, 0, 0, 0.06);
  --ht-border-strong: rgba(0, 0, 0, 0.1);
  --ht-radius-lg: 20px;
  --ht-radius-md: 12px;
  --ht-radius-sm: 10px;
  --ht-shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
  --ht-shadow-hover: 0 12px 24px -8px rgba(0, 0, 0, 0.12);
  --ht-transition: 200ms cubic-bezier(0.2, 0.6, 0.2, 1);
  --bs-primary: #1D4A3A;
  --bs-link-color: #1D4A3A;
  --bs-link-hover-color: #2A5C4A;
  --bs-body-bg: #F7F6F3;
  --bs-body-color: #22252A;
  --bs-border-radius: 12px;
  --bs-focus-ring-color: rgba(29, 74, 58, 0.25);
}
*, *::before, *::after { box-sizing: border-box; }
body {
  font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  background: var(--ht-bg);
  color: var(--ht-text);
  line-height: 1.75;
  padding-top: 104px;
}
a { color: var(--ht-primary); text-decoration: none; transition: color var(--ht-transition); }
a:hover { color: var(--ht-primary-light); }
img { max-width: 100%; height: auto; }
button, input, select, textarea { font-family: inherit; }
.container { max-width: 1200px; }
.btn {
  border-radius: var(--ht-radius-sm);
  font-weight: 600;
  height: 48px;
  padding: 0 24px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  letter-spacing: 0.02em;
  transition: all var(--ht-transition);
}
.btn:focus, .btn:focus-visible {
  outline: 3px solid rgba(29, 74, 58, 0.2);
  box-shadow: 0 0 0 6px rgba(29, 74, 58, 0.08);
}
.btn-primary {
  background: var(--ht-primary);
  border-color: var(--ht-primary);
  color: #fff;
}
.btn-primary:hover, .btn-primary:focus {
  background: var(--ht-primary-light);
  border-color: var(--ht-primary-light);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: var(--ht-shadow-hover);
}
.btn-primary:active {
  transform: translateY(1px);
  box-shadow: 0 2px 0 rgba(0, 0, 0, 0.15);
}
.btn-outline-primary {
  background: #fff;
  border: 1px solid rgba(29, 74, 58, 0.3);
  color: var(--ht-primary);
}
.btn-outline-primary:hover, .btn-outline-primary:focus {
  border-color: var(--ht-primary);
  background: rgba(29, 74, 58, 0.04);
  color: var(--ht-primary);
  transform: translateY(-1px);
}
.btn-outline-primary:active {
  transform: translateY(1px);
}
.btn-lg { height: 52px; padding: 0 28px; font-size: 1rem; }

/* Header */
.ht-header { position: fixed; top: 0; left: 0; right: 0; z-index: 1030; }
.ht-safety-line { height: 4px; background: var(--ht-primary); }
.ht-toolbar {
  background: var(--ht-dark-2);
  height: 32px;
  display: flex;
  align-items: center;
}
.ht-toolbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.ht-toolbar span {
  font-size: 0.75rem;
  color: rgba(255, 255, 255, 0.75);
  letter-spacing: 0.02em;
}
.ht-toolbar .toolbar-links { display: flex; gap: 16px; }
.ht-toolbar .toolbar-links a {
  font-size: 0.75rem;
  color: rgba(255, 255, 255, 0.75);
  text-decoration: none;
}
.ht-toolbar .toolbar-links a:hover { color: var(--ht-accent); }
.ht-navbar {
  background: rgba(247, 246, 243, 0.94);
  -webkit-backdrop-filter: saturate(1.4) blur(12px);
  backdrop-filter: saturate(1.4) blur(12px);
  border-bottom: 1px solid rgba(0, 0, 0, 0.04);
}
.ht-navbar .nav-inner {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  padding: 10px 0;
}
.brand-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.brand-logo svg { width: 30px; height: 30px; fill: var(--ht-primary); }
.brand-logo span {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--ht-primary);
  letter-spacing: -0.01em;
}
.search-area { flex: 1 1 100%; order: 3; max-width: 100%; }
.search-box {
  display: flex;
  align-items: center;
  height: 44px;
  background: #fff;
  border: 1px solid rgba(29, 74, 58, 0.15);
  border-radius: 22px;
  padding: 0 16px;
  gap: 10px;
  transition: border-color var(--ht-transition), box-shadow var(--ht-transition);
}
.search-box:focus-within {
  border-color: rgba(29, 74, 58, 0.4);
  box-shadow: 0 0 0 6px rgba(29, 74, 58, 0.08);
}
.search-box .search-icon { width: 16px; height: 16px; stroke: var(--ht-text-muted); flex-shrink: 0; }
.search-box input {
  flex: 1;
  border: none;
  outline: none;
  background: transparent;
  font-size: 0.9375rem;
  color: var(--ht-text);
  height: 100%;
}
.search-box input::placeholder { color: var(--ht-text-muted); }
.search-box kbd {
  font-family: inherit;
  font-size: 0.75rem;
  background: var(--ht-bg-light);
  border: 1px solid var(--ht-border);
  border-radius: 6px;
  padding: 2px 8px;
  color: var(--ht-text-muted);
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 20px;
  flex-shrink: 0;
  order: 2;
  margin-left: auto;
}
.nav-links .nav-link {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--ht-text);
  text-decoration: none;
  position: relative;
  min-width: 40px;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 4px;
}
.nav-links .nav-link::after {
  content: "";
  position: absolute;
  bottom: 2px;
  left: 0;
  right: 100%;
  height: 2px;
  background: var(--ht-primary);
  transition: right 300ms cubic-bezier(0.2, 0.6, 0.2, 1);
}
.nav-links .nav-link:hover { color: var(--ht-primary); }
.nav-links .nav-link:hover::after, .nav-links .nav-link.active::after { right: 0; }
.nav-links .nav-link.active { color: var(--ht-primary); }
.btn-download {
  height: 40px;
  padding: 0 20px;
  font-size: 0.875rem;
  border-radius: var(--ht-radius-sm);
  background: var(--ht-primary);
  color: #fff;
  border: none;
}
.btn-download:hover, .btn-download:focus {
  background: var(--ht-primary-light);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: var(--ht-shadow-hover);
}
@media (min-width: 992px) {
  .ht-navbar .nav-inner { flex-wrap: nowrap; }
  .search-area { flex: 1 1 40%; order: 2; max-width: 40%; }
  .nav-links { order: 3; margin-left: 0; }
}
@media (max-width: 767px) {
  body { padding-top: 96px; }
  .ht-toolbar .toolbar-links { display: none; }
  .nav-links { gap: 12px; }
  .nav-links .btn-download { padding: 0 14px; font-size: 0.8125rem; }
  .brand-logo span { font-size: 1.25rem; }
}

/* Hero */
.ht-hero {
  background: var(--ht-bg);
  padding: 60px 0 70px;
  position: relative;
  overflow: hidden;
  min-height: 640px;
  display: flex;
  align-items: center;
}
.ht-hero .container { position: relative; z-index: 2; }
.ht-hero .hero-bg-shape {
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
  opacity: 0.06;
  background: var(--ht-primary);
}
.ht-hero .shape-1 {
  width: 480px;
  height: 480px;
  top: -120px;
  right: -80px;
  animation: heroFloat 14s ease-in-out infinite alternate;
}
.ht-hero .shape-2 {
  width: 320px;
  height: 320px;
  bottom: -100px;
  left: -60px;
  border-radius: 0;
  animation: heroFloat 14s ease-in-out 2s infinite alternate;
}
@keyframes heroFloat {
  0% { transform: translate(0, 0) rotate(0deg); }
  100% { transform: translate(16px, -12px) rotate(3deg); }
}
.hero-text h1 {
  font-size: clamp(2.2rem, 5vw, 3.5rem);
  font-weight: 800;
  line-height: 1.15;
  color: #14201A;
  letter-spacing: -0.01em;
  margin-bottom: 20px;
}
.hero-text .hero-subtitle {
  font-size: 1.125rem;
  color: var(--ht-text-secondary);
  margin-bottom: 12px;
  line-height: 1.6;
}
.hero-text .hero-tags {
  font-size: 0.875rem;
  color: var(--ht-text-muted);
  margin-bottom: 28px;
  letter-spacing: 0.04em;
}
.hero-cta { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 18px; }
.hero-support {
  font-size: 0.8125rem;
  color: var(--ht-text-secondary);
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
  margin: 0;
}
.hero-support .check-item {
  display: inline-flex;
  align-items: center;
  gap: 5px;
}
.hero-support .check-item svg { width: 12px; height: 12px; stroke: var(--ht-primary); }
.hero-visual {
  position: relative;
  padding: 20px 0 10px;
}
.hero-main-image {
  position: relative;
  z-index: 1;
  aspect-ratio: 3 / 4;
  max-height: 520px;
  border-radius: var(--ht-radius-lg);
  overflow: hidden;
  border: 1px solid var(--ht-border);
  box-shadow: var(--ht-shadow-hover);
}
.hero-main-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.hero-corner-line {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 64px;
  height: 2px;
  background: var(--ht-accent);
  z-index: 2;
  transform: rotate(-45deg) translate(-6px, 12px);
  transform-origin: center;
  opacity: 0.7;
}
.hero-thumbs {
  position: absolute;
  bottom: -16px;
  right: 16px;
  z-index: 2;
  display: flex;
  gap: 12px;
}
.hero-thumbs img {
  width: 110px;
  height: 74px;
  object-fit: cover;
  border-radius: var(--ht-radius-sm);
  border: 3px solid var(--ht-bg);
  box-shadow: var(--ht-shadow-hover);
}
@media (max-width: 991px) {
  .ht-hero { padding: 48px 0 56px; }
  .hero-visual { margin-top: 36px; }
  .hero-main-image { max-height: 440px; }
}
@media (max-width: 575px) {
  .hero-thumbs img { width: 84px; height: 58px; }
}

/* Section common */
.ht-section { padding: 72px 0; }
.ht-section--gray { background: var(--ht-bg-light); }
.ht-section--dark { background: var(--ht-dark); }
.ht-section-title {
  font-size: clamp(1.5rem, 3vw, 2.25rem);
  font-weight: 700;
  line-height: 1.3;
  color: var(--ht-text);
  letter-spacing: -0.01em;
  margin-bottom: 12px;
  position: relative;
  padding-left: 16px;
}
.ht-section-title::before {
  content: "";
  position: absolute;
  left: 0;
  top: 6px;
  bottom: 6px;
  width: 4px;
  border-radius: 2px;
  background: var(--ht-primary);
}
.ht-section-title--center { text-align: center; padding-left: 0; }
.ht-section-title--center::before { display: none; }
.ht-section-subtitle {
  font-size: 0.9375rem;
  color: var(--ht-text-secondary);
  text-align: center;
  max-width: 560px;
  margin: 0 auto 40px;
}
.ht-section--dark .ht-section-title { color: #fff; }
.ht-section--dark .ht-section-title::before { background: var(--ht-accent); }

/* Carousel */
.ht-carousel-wrap {
  background: var(--ht-bg-light);
  border-radius: 24px;
  padding: 28px 0;
  position: relative;
}
.ht-carousel { border-radius: 24px; }
.ht-carousel .carousel-item { padding: 0 24px 20px; }
.ht-carousel .carousel-inner { overflow: hidden; border-radius: 20px; }
.ht-carousel .slide-body {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 0 8px;
}
.ht-carousel .slide-shot {
  width: 100%;
  max-width: 720px;
  aspect-ratio: 16 / 9;
  background: var(--ht-bg-light);
  border-radius: var(--ht-radius-lg);
  overflow: hidden;
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.ht-carousel .slide-shot img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 12px;
}
.ht-carousel .slide-title {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--ht-text);
  margin-bottom: 6px;
}
.ht-carousel .slide-desc {
  font-size: 0.9375rem;
  color: var(--ht-text-secondary);
  max-width: 480px;
  line-height: 1.6;
}
.ht-carousel .carousel-indicators {
  bottom: 6px;
  gap: 6px;
}
.ht-carousel .carousel-indicators button {
  width: 6px;
  height: 6px;
  border-radius: 4px;
  background: #C8C4BE;
  border: none;
  opacity: 1;
  transition: all 300ms cubic-bezier(0.2, 0.6, 0.2, 1);
  margin: 0 3px;
}
.ht-carousel .carousel-indicators button.active {
  width: 20px;
  background: var(--ht-primary);
}
.ht-carousel .carousel-control-prev, .ht-carousel .carousel-control-next {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: #fff;
  opacity: 1;
  top: 50%;
  transform: translateY(-50%);
  bottom: auto;
  box-shadow: var(--ht-shadow-sm);
  transition: all var(--ht-transition);
  border: 1px solid var(--ht-border);
}
.ht-carousel .carousel-control-prev { left: -10px; }
.ht-carousel .carousel-control-next { right: -10px; }
.ht-carousel .carousel-control-prev:hover, .ht-carousel .carousel-control-next:hover {
  background: var(--ht-primary);
  border-color: var(--ht-primary);
}
.ht-carousel .carousel-control-prev svg, .ht-carousel .carousel-control-next svg {
  width: 20px;
  height: 20px;
  stroke: var(--ht-primary);
}
.ht-carousel .carousel-control-prev:hover svg, .ht-carousel .carousel-control-next:hover svg {
  stroke: #fff;
}
@media (max-width: 767px) {
  .ht-carousel .carousel-control-prev, .ht-carousel .carousel-control-next { display: none; }
  .ht-carousel .carousel-item { padding: 0 12px 16px; }
}

/* Capabilities */
.ht-capabilities { background: var(--ht-bg); }
.cap-item {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
  align-items: center;
  padding: 28px 0;
  position: relative;
}
.cap-item .cap-number {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--ht-accent);
  line-height: 1;
  margin-bottom: 14px;
  letter-spacing: -0.02em;
}
.cap-item .cap-name {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--ht-text);
  position: relative;
  display: inline-block;
  padding-bottom: 6px;
  margin-bottom: 10px;
}
.cap-item .cap-name::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  height: 2px;
  width: 0;
  background: var(--ht-primary);
  transition: width 300ms cubic-bezier(0.2, 0.6, 0.2, 1);
}
.cap-item:hover .cap-name::after { width: 100%; }
.cap-item .cap-desc {
  font-size: 0.9375rem;
  color: var(--ht-text-secondary);
  line-height: 1.7;
  max-width: 460px;
}
.cap-item .cap-img {
  width: 100%;
  max-width: 420px;
  aspect-ratio: 4 / 3;
  border-radius: var(--ht-radius-md);
  overflow: hidden;
  background: var(--ht-bg-light);
  box-shadow: var(--ht-shadow-sm);
}
.cap-item .cap-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.cap-item .cap-content { order: 1; }
.cap-item .cap-img { order: 2; }
.cap-item:nth-child(even) .cap-content { order: 2; }
.cap-item:nth-child(even) .cap-img { order: 1; }
@media (max-width: 991px) {
  .cap-item { gap: 16px; }
  .cap-item .cap-img { max-width: 100%; }
}
@media (max-width: 575px) {
  .cap-item { grid-template-columns: 1fr; }
  .cap-item .cap-content, .cap-item:nth-child(even) .cap-content { order: 1; }
  .cap-item .cap-img, .cap-item:nth-child(even) .cap-img { order: 2; width: 100%; }
}

/* System requirements */
.ht-requirements { background: var(--ht-bg); }
.sys-card {
  background: #fff;
  border-radius: 16px;
  padding: 28px 24px 24px;
  border: 1px solid var(--ht-border);
  border-top: 4px solid var(--ht-primary);
  height: 100%;
  display: flex;
  flex-direction: column;
}
.sys-card .sys-icon {
  width: 46px;
  height: 46px;
  border-radius: var(--ht-radius-sm);
  background: rgba(29, 74, 58, 0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
}
.sys-card .sys-icon svg { width: 24px; height: 24px; stroke: var(--ht-primary); fill: none; stroke-width: 1.5; }
.sys-card h3 {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--ht-text);
  margin-bottom: 16px;
}
.sys-card .sys-list { list-style: none; padding: 0; margin: 0; flex: 1; }
.sys-card .sys-list li {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
  padding: 12px 0;
  border-bottom: 1px solid var(--ht-bg-light);
}
.sys-card .sys-list li:last-child { border-bottom: none; }
.sys-card .sys-list .key {
  font-size: 0.8125rem;
  color: var(--ht-text-muted);
  flex-shrink: 0;
}
.sys-card .sys-list .val {
  font-size: 0.875rem;
  color: var(--ht-text);
  text-align: right;
}
.ht-tip {
  font-size: 0.75rem;
  color: var(--ht-text-muted);
  margin-top: 20px;
  text-align: center;
}

/* Testimonials */
.ht-testimonials { background: var(--ht-bg-light); padding: 72px 0; }
.testi-card {
  background: #fff;
  border-radius: var(--ht-radius-md);
  padding: 20px;
  border: 1px solid rgba(0, 0, 0, 0.05);
  height: 100%;
  display: flex;
  flex-direction: column;
}
.testi-card .stars {
  display: flex;
  gap: 2px;
  margin-bottom: 12px;
}
.testi-card .stars svg { width: 16px; height: 16px; fill: var(--ht-accent); }
.testi-card .stars svg.off { fill: #E5E7EB; }
.testi-card .testi-text {
  font-size: 0.9375rem;
  color: var(--ht-text-secondary);
  line-height: 1.6;
  flex: 1;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 16px;
}
.testi-card .testi-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  border-top: 1px solid var(--ht-bg-light);
  padding-top: 14px;
}
.testi-card .testi-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--ht-bg-light);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
.testi-card .testi-avatar svg { width: 20px; height: 20px; stroke: var(--ht-text-muted); fill: none; stroke-width: 1.5; }
.testi-card .testi-name {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--ht-text);
}
.testi-card .testi-source {
  font-size: 0.8125rem;
  color: var(--ht-text-muted);
  margin-left: auto;
}

/* Download CTA */
.ht-download {
  background: var(--ht-dark);
  padding: 72px 0;
  text-align: center;
}
.ht-download .ht-section-title { color: #fff; text-align: center; padding-left: 0; }
.ht-download .ht-section-title::before { display: none; }
.ht-download .download-sub {
  font-size: 0.9375rem;
  color: rgba(255, 255, 255, 0.65);
  margin-bottom: 36px;
}
.download-btns {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 20px;
}
.download-btn {
  display: flex;
  align-items: center;
  gap: 12px;
  background: #fff;
  color: var(--ht-dark);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--ht-radius-sm);
  height: 52px;
  padding: 0 24px;
  font-size: 0.9375rem;
  font-weight: 600;
  text-decoration: none;
  transition: all var(--ht-transition);
  min-width: 180px;
  justify-content: center;
}
.download-btn:hover {
  background: rgba(255, 255, 255, 0.92);
  color: var(--ht-dark);
  transform: translateY(-2px);
  box-shadow: var(--ht-shadow-hover);
}
.download-btn:active { transform: translateY(0); }
.download-btn svg { width: 22px; height: 22px; fill: none; stroke: var(--ht-dark); stroke-width: 1.5; }
.download-btn .btn-label { display: flex; flex-direction: column; align-items: flex-start; line-height: 1.2; }
.download-btn .btn-label small { font-size: 0.75rem; font-weight: 400; opacity: 0.65; }
.download-btn .btn-label strong { font-size: 0.9375rem; font-weight: 600; }
.download-safe-tip {
  font-size: 0.75rem;
  color: rgba(255, 255, 255, 0.5);
  margin: 0;
}
@media (max-width: 767px) {
  .download-btns { flex-direction: column; align-items: center; }
  .download-btn { width: 100%; max-width: 360px; }
}

/* News List */
.ht-news { background: var(--ht-bg); }
.ht-news .news-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
}
.ht-news .news-header .ht-section-title { margin-bottom: 0; }
.ht-news .news-more {
  font-size: 0.875rem;
  color: var(--ht-text-secondary);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  min-height: 44px;
}
.ht-news .news-more:hover { color: var(--ht-primary); }
.ht-news .news-more svg { width: 14px; height: 14px; transition: transform var(--ht-transition); }
.ht-news .news-more:hover svg { transform: translateX(4px); }
.news-list-card {
  background: #fff;
  border-radius: 16px;
  padding: 24px;
  border: 1px solid var(--ht-border);
  box-shadow: var(--ht-shadow-sm);
}
.news-item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) minmax(0, 1.2fr) auto;
  gap: 16px;
  align-items: center;
  padding: 14px 8px;
  border-bottom: 1px solid var(--ht-bg-light);
  min-height: 56px;
  transition: background var(--ht-transition);
}
.news-item:last-child { border-bottom: none; }
.news-item:hover { background: rgba(29, 74, 58, 0.02); }
.news-badge {
  display: inline-flex;
  align-items: center;
  height: 26px;
  padding: 0 10px;
  background: rgba(29, 74, 58, 0.08);
  color: var(--ht-primary);
  border-radius: 6px;
  font-size: 0.8125rem;
  font-weight: 500;
  white-space: nowrap;
}
.news-title {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--ht-text);
  text-decoration: none;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  transition: color var(--ht-transition);
}
.news-title:hover { color: var(--ht-primary); text-decoration: underline; text-underline-offset: 4px; }
.news-summary {
  font-size: 0.875rem;
  color: var(--ht-text-secondary);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  margin: 0;
}
.news-time {
  font-size: 0.8125rem;
  color: var(--ht-text-muted);
  white-space: nowrap;
}
.news-empty {
  border: 1px dashed #C8C4BE;
  border-radius: var(--ht-radius-md);
  padding: 32px;
  text-align: center;
  color: var(--ht-text-secondary);
  font-size: 0.9375rem;
}
@media (max-width: 767px) {
  .news-item { grid-template-columns: auto minmax(0, 1fr) auto; gap: 10px; }
  .news-summary { display: none; }
}

/* FAQ */
.ht-faq { background: var(--ht-bg); padding-bottom: 80px; }
.ht-faq-wrap { max-width: 780px; margin: 0 auto; }
.ht-accordion .accordion-item {
  background: #fff;
  border: none;
  border-radius: var(--ht-radius-md);
  margin-bottom: 12px;
  box-shadow: var(--ht-shadow-sm);
  overflow: hidden;
  border-left: 4px solid var(--ht-primary);
  border-bottom: 1px solid rgba(0, 0, 0, 0.06);
}
.ht-accordion .accordion-item:last-child { margin-bottom: 0; }
.ht-accordion .accordion-header { margin: 0; }
.ht-accordion .accordion-button {
  background: #fff;
  color: var(--ht-text);
  font-size: 1rem;
  font-weight: 600;
  padding: 18px 20px;
  min-height: 52px;
  border: none;
  box-shadow: none;
  position: relative;
}
.ht-accordion .accordion-button:focus, .ht-accordion .accordion-button:focus-visible {
  box-shadow: 0 0 0 4px rgba(29, 74, 58, 0.1);
}
.ht-accordion .accordion-button::after {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='none' stroke='%231D4A3A' stroke-width='1.5' stroke-linecap='round'%3E%3Cpath d='M8 3v10M3 8h10'/%3E%3C/svg%3E");
  width: 22px;
  height: 22px;
  background-size: contain;
  transition: transform 300ms;
  border-radius: 50%;
  background-color: rgba(29, 74, 58, 0.06);
  background-position: center;
  background-repeat: no-repeat;
}
.ht-accordion .accordion-button:not(.collapsed)::after {
  transform: rotate(45deg);
  background-color: rgba(29, 74, 58, 0.12);
}
.ht-accordion .accordion-body {
  padding: 0 20px 20px;
  font-size: 0.9375rem;
  color: var(--ht-text-secondary);
  line-height: 1.7;
  border-top: 1px solid rgba(0, 0, 0, 0.03);
  padding-top: 16px;
  margin-top: 0;
}

/* Footer */
.ht-footer {
  background: var(--ht-dark);
  color: rgba(255, 255, 255, 0.85);
  padding: 56px 0 0;
}
.footer-inner {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 32px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}
.ht-footer .footer-brand .footer-logo {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 10px;
}
.ht-footer .footer-logo svg { width: 26px; height: 26px; fill: var(--ht-accent); }
.ht-footer .footer-logo span {
  font-size: 1.375rem;
  font-weight: 700;
  color: #fff;
}
.ht-footer .footer-brand p {
  font-size: 0.8125rem;
  color: rgba(255, 255, 255, 0.6);
  line-height: 1.6;
  margin: 0;
  max-width: 240px;
}
.ht-footer .footer-nav h5,
.ht-footer .footer-download h5 {
  font-size: 0.9375rem;
  font-weight: 600;
  color: #fff;
  margin-bottom: 14px;
}
.ht-footer .footer-nav a {
  display: block;
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.7);
  text-decoration: none;
  padding: 4px 0;
  transition: color var(--ht-transition);
}
.ht-footer .footer-nav a:hover { color: var(--ht-accent); }
.ht-footer .footer-download .footer-platforms {
  display: flex;
  gap: 12px;
}
.ht-footer .footer-download .platform-btn {
  width: 44px;
  height: 44px;
  border-radius: var(--ht-radius-sm);
  background: rgba(255, 255, 255, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(255, 255, 255, 0.15);
  transition: all var(--ht-transition);
}
.ht-footer .footer-download .platform-btn:hover {
  border-color: var(--ht-accent);
  background: rgba(255, 255, 255, 0.16);
  transform: translateY(-2px);
}
.ht-footer .footer-download .platform-btn svg {
  width: 20px;
  height: 20px;
  stroke: rgba(255, 255, 255, 0.85);
  fill: none;
  stroke-width: 1.5;
}
.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 0;
  font-size: 0.75rem;
  color: rgba(255, 255, 255, 0.5);
  flex-wrap: wrap;
}
@media (max-width: 767px) {
  .footer-inner { grid-template-columns: 1fr; gap: 28px; }
  .footer-bottom { flex-direction: column; align-items: flex-start; }
}

/* Reveal animation */
.reveal {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 300ms, transform 300ms cubic-bezier(0.2, 0.6, 0.2, 1);
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  .reveal { opacity: 1; transform: none; }
}

/* roulang page: category1 */
:root {
            --ht-primary: #1D4A3A;
            --ht-primary-light: #2A5C49;
            --ht-accent: #C8A15A;
            --ht-bg: #F7F6F3;
            --ht-bg-gray: #F1EFE9;
            --ht-dark: #12231D;
            --ht-text: #22252A;
            --ht-text-secondary: #6B7280;
            --ht-text-muted: #9CA3AF;
            --ht-border: rgba(0, 0, 0, 0.06);
            --ht-radius-lg: 20px;
            --ht-radius-md: 12px;
            --ht-radius-sm: 10px;
            --ht-radius-pill: 50rem;
            --ht-shadow: 0 1px 3px rgba(0, 0, 0, 0.06);
            --ht-shadow-hover: 0 12px 24px -8px rgba(0, 0, 0, 0.12);
            --ht-transition: 200ms cubic-bezier(0.2, 0.6, 0.2, 1);
            --bs-primary: #1D4A3A;
            --bs-link-color: #1D4A3A;
            --bs-link-hover-color: #2A5C49;
            --bs-body-bg: #F7F6F3;
            --bs-border-radius: 12px;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            background: var(--ht-bg);
            color: var(--ht-text);
            line-height: 1.75;
            letter-spacing: 0;
            -webkit-font-smoothing: antialiased;
        }

        body.modal-open {
            overflow: hidden;
        }

        a {
            color: var(--ht-primary);
            text-decoration: none;
            transition: color var(--ht-transition);
        }
        a:hover {
            color: var(--ht-primary-light);
        }

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

        button,
        input {
            font-family: inherit;
        }

        .container {
            max-width: 1200px;
            padding-left: 24px;
            padding-right: 24px;
        }

        /* ========== 顶部安全线 ========== */
        .ht-safety-line {
            height: 4px;
            background: var(--ht-primary);
        }

        /* ========== 工具条 ========== */
        .ht-toolbar {
            background: #14201A;
            height: 32px;
            display: flex;
            align-items: center;
        }
        .ht-toolbar .container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .ht-toolbar .toolbar-links {
            display: flex;
            gap: 20px;
        }
        .ht-toolbar span,
        .ht-toolbar a {
            color: rgba(255, 255, 255, 0.75);
            font-size: 0.75rem;
            line-height: 1;
            text-decoration: none;
            transition: color var(--ht-transition);
        }
        .ht-toolbar a:hover {
            color: var(--ht-accent);
        }

        /* ========== 导航 ========== */
        .ht-navbar {
            background: rgba(247, 246, 243, 0.94);
            backdrop-filter: saturate(1.4) blur(12px);
            -webkit-backdrop-filter: saturate(1.4) blur(12px);
            border-bottom: 1px solid rgba(0, 0, 0, 0.04);
            position: sticky;
            top: 0;
            z-index: 1030;
        }
        .nav-inner {
            display: flex;
            align-items: center;
            height: 72px;
            gap: 24px;
        }

        .brand-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .brand-logo svg {
            width: 34px;
            height: 34px;
            display: block;
        }
        .brand-logo span {
            font-size: 1.4rem;
            font-weight: 800;
            letter-spacing: -0.01em;
            color: var(--ht-text);
            white-space: nowrap;
        }

        .search-area {
            flex: 1;
            max-width: 400px;
            margin: 0 auto;
        }
        .search-box {
            display: flex;
            align-items: center;
            height: 44px;
            background: #fff;
            border: 1px solid rgba(29, 74, 58, 0.15);
            border-radius: 22px;
            padding: 0 16px;
            transition: border-color var(--ht-transition), box-shadow var(--ht-transition);
        }
        .search-box:focus-within {
            border-color: rgba(29, 74, 58, 0.4);
            box-shadow: 0 0 0 6px rgba(29, 74, 58, 0.08);
        }
        .search-icon {
            width: 16px;
            height: 16px;
            color: var(--ht-text-muted);
            flex-shrink: 0;
            margin-right: 8px;
        }
        .search-box input {
            flex: 1;
            border: none;
            outline: none;
            background: transparent;
            font-size: 0.875rem;
            color: var(--ht-text);
            min-width: 0;
        }
        .search-box input::placeholder {
            color: var(--ht-text-muted);
        }
        .search-box kbd {
            font-family: inherit;
            font-size: 0.75rem;
            color: var(--ht-text-muted);
            background: var(--ht-bg-gray);
            border-radius: 4px;
            padding: 2px 6px;
            border: 1px solid rgba(0, 0, 0, 0.04);
            white-space: nowrap;
            margin-left: 8px;
            flex-shrink: 0;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 28px;
            flex-shrink: 0;
        }
        .nav-links .nav-link {
            font-size: 0.9375rem;
            color: var(--ht-text);
            text-decoration: none;
            position: relative;
            padding: 8px 2px;
            line-height: 1.2;
            transition: color var(--ht-transition);
        }
        .nav-links .nav-link::after {
            content: "";
            position: absolute;
            left: 0;
            bottom: 0;
            width: 0;
            height: 2px;
            background: var(--ht-primary);
            transition: width 300ms cubic-bezier(0.2, 0.6, 0.2, 1);
        }
        .nav-links .nav-link:hover,
        .nav-links .nav-link.active {
            color: var(--ht-primary);
        }
        .nav-links .nav-link:hover::after,
        .nav-links .nav-link.active::after {
            width: 100%;
        }

        .btn-download {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            height: 40px;
            padding: 0 24px;
            background: var(--ht-primary);
            color: #fff !important;
            font-size: 0.9375rem;
            font-weight: 600;
            letter-spacing: 0.02em;
            border-radius: var(--ht-radius-sm);
            border: none;
            transition: background var(--ht-transition), transform var(--ht-transition), box-shadow var(--ht-transition);
            text-decoration: none;
            white-space: nowrap;
        }
        .btn-download:hover {
            background: var(--ht-primary-light);
            transform: translateY(-1px);
            box-shadow: var(--ht-shadow-hover);
            color: #fff !important;
        }
        .btn-download:active {
            transform: translateY(1px);
            box-shadow: 0 2px 0 rgba(0, 0, 0, 0.15);
        }

        /* ========== Hero ========== */
        .category-hero {
            background: var(--ht-bg-gray);
            position: relative;
            overflow: hidden;
            padding: 64px 0 72px;
        }
        .category-hero::before {
            content: "";
            position: absolute;
            top: -120px;
            right: -80px;
            width: 480px;
            height: 480px;
            border-radius: 50%;
            background: rgba(29, 74, 58, 0.06);
            animation: hero-drift 14s ease-in-out infinite alternate;
        }
        .category-hero::after {
            content: "";
            position: absolute;
            bottom: -80px;
            left: -40px;
            width: 320px;
            height: 320px;
            border-radius: 50%;
            background: rgba(200, 161, 90, 0.06);
            animation: hero-drift 18s ease-in-out infinite alternate-reverse;
        }

        @keyframes hero-drift {
            0% {
                transform: translate(0, 0) scale(1);
            }
            100% {
                transform: translate(30px, -20px) scale(1.04);
            }
        }

        .category-hero .container {
            position: relative;
            z-index: 1;
        }

        .ht-breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.8125rem;
            color: var(--ht-text-muted);
            margin-bottom: 32px;
        }
        .ht-breadcrumb a {
            color: var(--ht-text-muted);
            text-decoration: none;
            transition: color var(--ht-transition);
        }
        .ht-breadcrumb a:hover {
            color: var(--ht-primary);
        }
        .ht-breadcrumb .breadcrumb-sep {
            color: #d1cdc5;
        }
        .ht-breadcrumb .breadcrumb-current {
            color: var(--ht-text);
            font-weight: 500;
            max-width: 200px;
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
        }

        .category-hero h1 {
            font-size: clamp(2.2rem, 5vw, 3.5rem);
            font-weight: 800;
            line-height: 1.15;
            letter-spacing: -0.01em;
            color: #14201A;
            margin-bottom: 16px;
            max-width: 720px;
        }
        .category-hero .hero-subtitle {
            font-size: 1.0625rem;
            color: var(--ht-text-secondary);
            line-height: 1.7;
            max-width: 560px;
            margin-bottom: 20px;
        }
        .hero-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-bottom: 28px;
        }
        .hero-tags .ht-tag {
            display: inline-flex;
            align-items: center;
            padding: 6px 14px;
            background: rgba(29, 74, 58, 0.08);
            color: var(--ht-primary);
            font-size: 0.875rem;
            font-weight: 500;
            border-radius: var(--ht-radius-pill);
        }
        .hero-cta {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
        }
        .hero-cta .btn {
            height: 48px;
            padding: 0 28px;
            font-size: 0.9375rem;
            font-weight: 600;
            border-radius: var(--ht-radius-sm);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            transition: background var(--ht-transition), color var(--ht-transition), border-color var(--ht-transition), box-shadow var(--ht-transition), transform var(--ht-transition);
            text-decoration: none;
            letter-spacing: 0.02em;
            border: none;
        }
        .hero-cta .btn-primary-custom {
            background: var(--ht-primary);
            color: #fff;
        }
        .hero-cta .btn-primary-custom:hover {
            background: var(--ht-primary-light);
            transform: translateY(-1px);
            box-shadow: var(--ht-shadow-hover);
        }
        .hero-cta .btn-outline-custom {
            background: #fff;
            color: var(--ht-primary);
            border: 1px solid rgba(29, 74, 58, 0.3);
        }
        .hero-cta .btn-outline-custom:hover {
            border-color: var(--ht-primary);
            background: rgba(29, 74, 58, 0.04);
            transform: translateY(-1px);
        }

        /* ========== 通用区块 ========== */
        .section-padding {
            padding: 96px 0;
        }
        .section-padding-sm {
            padding: 72px 0;
        }
        .section-head {
            margin-bottom: 48px;
            text-align: center;
            max-width: 680px;
            margin-left: auto;
            margin-right: auto;
        }
        .section-head .section-eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 0.8125rem;
            font-weight: 600;
            letter-spacing: 0.08em;
            color: var(--ht-accent);
            text-transform: uppercase;
            margin-bottom: 12px;
        }
        .section-head .section-eyebrow::before,
        .section-head .section-eyebrow::after {
            content: "";
            width: 24px;
            height: 1px;
            background: var(--ht-accent);
            opacity: 0.6;
        }
        .section-head h2 {
            font-size: clamp(1.5rem, 3vw, 2.25rem);
            font-weight: 700;
            line-height: 1.3;
            color: var(--ht-text);
            margin-bottom: 12px;
            letter-spacing: -0.01em;
        }
        .section-head p {
            font-size: 1rem;
            color: var(--ht-text-secondary);
            line-height: 1.7;
        }

        .bg-gray {
            background: var(--ht-bg-gray);
        }
        .bg-white {
            background: #fff;
        }

        /* ========== 分类价值 ========== */
        .features-section {
            background: var(--ht-bg);
        }
        .features-list {
            display: flex;
            flex-direction: column;
            gap: 48px;
        }
        .feature-item {
            display: flex;
            align-items: center;
            gap: 40px;
            padding: 32px;
            background: #fff;
            border-radius: var(--ht-radius-lg);
            box-shadow: var(--ht-shadow);
            border: 1px solid rgba(0, 0, 0, 0.04);
            transition: transform var(--ht-transition), box-shadow var(--ht-transition);
        }
        .feature-item:hover {
            transform: translateY(-2px);
            box-shadow: var(--ht-shadow-hover);
        }
        .feature-item.feature-right {
            flex-direction: row-reverse;
        }
        .feature-num {
            font-size: 3rem;
            font-weight: 800;
            line-height: 1;
            color: var(--ht-accent);
            font-family: "Helvetica Neue", Arial, sans-serif;
            letter-spacing: -0.02em;
            flex-shrink: 0;
            width: 80px;
            text-align: center;
        }
        .feature-content {
            flex: 1;
            min-width: 0;
        }
        .feature-content h3 {
            font-size: 1.25rem;
            font-weight: 600;
            line-height: 1.4;
            color: var(--ht-text);
            margin-bottom: 8px;
            position: relative;
            display: inline-block;
        }
        .feature-content h3::after {
            content: "";
            position: absolute;
            left: 0;
            bottom: -4px;
            width: 0;
            height: 2px;
            background: var(--ht-primary);
            transition: width 300ms cubic-bezier(0.2, 0.6, 0.2, 1);
        }
        .feature-item:hover .feature-content h3::after {
            width: 100%;
        }
        .feature-content p {
            font-size: 0.9375rem;
            color: var(--ht-text-secondary);
            line-height: 1.7;
            margin-bottom: 0;
            max-width: 420px;
        }
        .feature-image {
            flex-shrink: 0;
            width: 200px;
        }
        .feature-image img {
            width: 100%;
            aspect-ratio: 4 / 3;
            object-fit: cover;
            border-radius: var(--ht-radius-md);
            display: block;
        }

        /* ========== 内容覆盖 ========== */
        .coverage-section {
            background: var(--ht-bg-gray);
        }
        .coverage-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .coverage-card {
            background: #fff;
            border-radius: var(--ht-radius-md);
            overflow: hidden;
            box-shadow: var(--ht-shadow);
            border: 1px solid rgba(0, 0, 0, 0.04);
            transition: transform var(--ht-transition), box-shadow var(--ht-transition);
        }
        .coverage-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--ht-shadow-hover);
        }
        .coverage-card .coverage-img {
            width: 100%;
            aspect-ratio: 16 / 10;
            object-fit: cover;
            display: block;
        }
        .coverage-card .coverage-body {
            padding: 24px;
        }
        .coverage-card .coverage-body h3 {
            font-size: 1.125rem;
            font-weight: 600;
            color: var(--ht-text);
            margin-bottom: 8px;
        }
        .coverage-card .coverage-body p {
            font-size: 0.9375rem;
            color: var(--ht-text-secondary);
            line-height: 1.6;
            margin-bottom: 0;
        }
        .coverage-card .coverage-tag {
            display: inline-block;
            padding: 4px 12px;
            background: rgba(29, 74, 58, 0.08);
            color: var(--ht-primary);
            font-size: 0.75rem;
            font-weight: 600;
            border-radius: 6px;
            margin-bottom: 12px;
        }

        /* ========== 数据统计 ========== */
        .stats-section {
            background: var(--ht-bg);
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .stat-card {
            background: #fff;
            border-radius: var(--ht-radius-md);
            padding: 32px 24px;
            text-align: center;
            border-top: 4px solid var(--ht-primary);
            box-shadow: var(--ht-shadow);
            transition: transform var(--ht-transition), box-shadow var(--ht-transition);
        }
        .stat-card:hover {
            transform: translateY(-2px);
            box-shadow: var(--ht-shadow-hover);
        }
        .stat-card .stat-num {
            font-size: 2.5rem;
            font-weight: 800;
            line-height: 1.2;
            color: var(--ht-primary);
            letter-spacing: -0.02em;
            font-family: "Helvetica Neue", Arial, sans-serif;
        }
        .stat-card .stat-label {
            font-size: 0.875rem;
            color: var(--ht-text-secondary);
            margin-top: 8px;
        }

        /* ========== 使用流程 ========== */
        .process-section {
            background: var(--ht-bg-gray);
        }
        .process-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .process-item {
            background: #fff;
            border-radius: var(--ht-radius-md);
            padding: 32px 24px;
            text-align: center;
            box-shadow: var(--ht-shadow);
            border: 1px solid rgba(0, 0, 0, 0.04);
            position: relative;
            transition: transform var(--ht-transition), box-shadow var(--ht-transition);
        }
        .process-item:hover {
            transform: translateY(-3px);
            box-shadow: var(--ht-shadow-hover);
        }
        .process-step {
            width: 48px;
            height: 48px;
            margin: 0 auto 16px;
            background: var(--ht-primary);
            color: #fff;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.125rem;
            font-weight: 700;
            font-family: "Helvetica Neue", Arial, sans-serif;
        }
        .process-item h3 {
            font-size: 1.0625rem;
            font-weight: 600;
            color: var(--ht-text);
            margin-bottom: 8px;
        }
        .process-item p {
            font-size: 0.875rem;
            color: var(--ht-text-secondary);
            line-height: 1.6;
            margin-bottom: 0;
        }

        /* ========== FAQ ========== */
        .faq-section {
            background: var(--ht-bg);
        }
        .faq-accordion {
            max-width: 780px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: #fff;
            border-radius: var(--ht-radius-md)!important;
            border: 1px solid rgba(0, 0, 0, 0.06)!important;
            box-shadow: var(--ht-shadow);
            overflow: hidden;
            border-left: 4px solid var(--ht-primary)!important;
        }
        .faq-item .accordion-header {
            border: none;
            background: transparent;
        }
        .faq-item .accordion-button {
            font-size: 1rem;
            font-weight: 600;
            color: var(--ht-text);
            background: transparent;
            padding: 20px 24px;
            border: none;
            box-shadow: none;
            line-height: 1.4;
        }
        .faq-item .accordion-button:not(.collapsed) {
            background: transparent;
            color: var(--ht-primary);
            box-shadow: none;
        }
        .faq-item .accordion-button:focus {
            box-shadow: none;
            border-color: transparent;
        }
        .faq-item .accordion-button::after {
            background-image: none;
            content: "+";
            font-size: 1.5rem;
            font-weight: 300;
            color: var(--ht-primary);
            transform: rotate(0deg);
            transition: transform 300ms ease;
            width: auto;
            height: auto;
            line-height: 1;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .faq-item .accordion-button:not(.collapsed)::after {
            transform: rotate(45deg);
            color: var(--ht-primary);
        }
        .faq-item .accordion-body {
            padding: 0 24px 20px;
            font-size: 0.9375rem;
            color: var(--ht-text-secondary);
            line-height: 1.7;
        }

        /* ========== CTA ========== */
        .cta-section {
            background: var(--ht-dark);
            padding: 80px 0;
            text-align: center;
        }
        .cta-section h2 {
            font-size: clamp(1.5rem, 3vw, 2.25rem);
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
            letter-spacing: -0.01em;
        }
        .cta-section .cta-subtitle {
            font-size: 1rem;
            color: rgba(255, 255, 255, 0.65);
            max-width: 480px;
            margin: 0 auto 40px;
            line-height: 1.7;
        }
        .cta-buttons {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
            margin-bottom: 24px;
        }
        .cta-btn {
            display: inline-flex;
            align-items: center;
            gap: 12px;
            background: #fff;
            color: var(--ht-primary);
            border: none;
            height: 52px;
            padding: 0 28px;
            border-radius: var(--ht-radius-sm);
            font-size: 0.9375rem;
            font-weight: 600;
            text-decoration: none;
            transition: transform var(--ht-transition), background var(--ht-transition), box-shadow var(--ht-transition);
        }
        .cta-btn:hover {
            transform: translateY(-2px);
            background: rgba(255, 255, 255, 0.92);
            box-shadow: 0 12px 24px -8px rgba(0, 0, 0, 0.3);
            color: var(--ht-primary);
        }
        .cta-btn svg {
            width: 20px;
            height: 20px;
        }
        .cta-safe-tip {
            font-size: 0.75rem;
            color: rgba(255, 255, 255, 0.5);
        }

        /* ========== 页脚 ========== */
        .ht-footer {
            background: var(--ht-dark);
            color: rgba(255, 255, 255, 0.85);
            padding-top: 64px;
            padding-bottom: 32px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
        }
        .footer-inner {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr;
            gap: 48px;
            margin-bottom: 48px;
        }
        .footer-brand .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 12px;
        }
        .footer-brand .footer-logo svg {
            width: 32px;
            height: 32px;
        }
        .footer-brand .footer-logo span {
            font-size: 1.25rem;
            font-weight: 800;
            color: #fff;
        }
        .footer-brand p {
            font-size: 0.875rem;
            color: rgba(255, 255, 255, 0.6);
            margin-bottom: 0;
            max-width: 240px;
            line-height: 1.6;
        }
        .footer-nav h5,
        .footer-download h5 {
            font-size: 0.875rem;
            font-weight: 600;
            color: rgba(255, 255, 255, 0.8);
            margin-bottom: 16px;
            letter-spacing: 0.02em;
        }
        .footer-nav a {
            display: block;
            font-size: 0.875rem;
            color: rgba(255, 255, 255, 0.6);
            text-decoration: none;
            padding: 6px 0;
            transition: color var(--ht-transition);
        }
        .footer-nav a:hover {
            color: var(--ht-accent);
        }
        .footer-platforms {
            display: flex;
            gap: 12px;
        }
        .platform-btn {
            width: 44px;
            height: 44px;
            border-radius: 12px;
            border: 1px solid rgba(255, 255, 255, 0.2);
            display: flex;
            align-items: center;
            justify-content: center;
            transition: border-color var(--ht-transition), background var(--ht-transition);
        }
        .platform-btn svg {
            width: 20px;
            height: 20px;
            fill: none;
            stroke: rgba(255, 255, 255, 0.8);
            stroke-width: 1.8;
            stroke-linecap: round;
            stroke-linejoin: round;
        }
        .platform-btn:hover {
            border-color: var(--ht-accent);
            background: rgba(255, 255, 255, 0.06);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
        }
        .footer-bottom span {
            font-size: 0.75rem;
            color: rgba(255, 255, 255, 0.5);
        }

        /* ========== 动效 ========== */
        .fade-up {
            opacity: 0;
            transform: translateY(12px);
            transition: opacity 300ms ease-out, transform 300ms ease-out;
        }
        .fade-up.visible {
            opacity: 1;
            transform: translateY(0);
        }

        @media (prefers-reduced-motion: reduce) {
            *,
            *::before,
            *::after {
                animation-duration: 0.01ms !important;
                animation-iteration-count: 1 !important;
                transition-duration: 0.01ms !important;
            }
            html {
                scroll-behavior: auto;
            }
        }

        /* ========== 响应式 ========== */
        @media (max-width: 991.98px) {
            .nav-inner {
                flex-wrap: wrap;
                height: auto;
                padding: 16px 0;
                gap: 16px;
            }
            .search-area {
                order: 3;
                max-width: 100%;
                flex-basis: 100%;
            }
            .nav-links {
                margin-left: auto;
            }
            .feature-item {
                flex-direction: column;
                text-align: center;
                padding: 24px;
            }
            .feature-item.feature-right {
                flex-direction: column;
            }
            .feature-num {
                width: auto;
                margin-bottom: 8px;
            }
            .feature-content p {
                margin-left: auto;
                margin-right: auto;
            }
            .feature-image {
                width: 100%;
                max-width: 320px;
            }
            .coverage-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .process-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-inner {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
        }

        @media (max-width: 767.98px) {
            .ht-toolbar span {
                display: block;
            }
            .ht-toolbar .toolbar-links {
                display: none;
            }
            .nav-links {
                gap: 16px;
            }
            .nav-links .nav-link {
                font-size: 0.875rem;
            }
            .btn-download {
                padding: 0 16px;
                font-size: 0.875rem;
                height: 36px;
            }
            .category-hero {
                padding: 40px 0 48px;
            }
            .category-hero h1 {
                font-size: 2rem;
            }
            .section-padding {
                padding: 64px 0;
            }
            .section-padding-sm {
                padding: 48px 0;
            }
            .section-head {
                margin-bottom: 32px;
            }
            .coverage-grid {
                grid-template-columns: 1fr;
            }
            .process-grid {
                grid-template-columns: 1fr;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
            .stat-card {
                padding: 20px 16px;
            }
            .stat-card .stat-num {
                font-size: 2rem;
            }
            .footer-inner {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
            .feature-item {
                padding: 20px;
                gap: 16px;
            }
            .feature-image {
                max-width: 100%;
            }
            .cta-buttons {
                flex-direction: column;
                align-items: center;
            }
            .cta-btn {
                width: 100%;
                justify-content: center;
                max-width: 320px;
            }
            .hero-cta {
                flex-direction: column;
                align-items: stretch;
            }
            .hero-cta .btn {
                width: 100%;
            }
        }

        @media (max-width: 520px) {
            .brand-logo span {
                font-size: 1.1rem;
            }
            .brand-logo svg {
                width: 28px;
                height: 28px;
            }
            .search-box kbd {
                display: none;
            }
            .hero-tags {
                gap: 6px;
            }
            .hero-tags .ht-tag {
                font-size: 0.75rem;
                padding: 4px 10px;
            }
        }

/* roulang page: article */
:root {
            --ht-primary: #1D4A3A;
            --ht-primary-dark: #15382c;
            --ht-primary-light: rgba(29, 74, 58, 0.08);
            --ht-primary-border: rgba(29, 74, 58, 0.15);
            --ht-accent: #C8A15A;
            --ht-bg: #F7F6F3;
            --ht-bg-light: #F1EFE9;
            --ht-dark: #12231D;
            --ht-text: #22252A;
            --ht-text-secondary: #6B7280;
            --ht-text-weak: #9CA3AF;
            --ht-border: rgba(0, 0, 0, 0.06);
            --ht-border-strong: rgba(0, 0, 0, 0.1);
            --ht-radius-lg: 20px;
            --ht-radius-md: 12px;
            --ht-radius-sm: 10px;
            --ht-shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
            --ht-shadow-lg: 0 12px 24px -8px rgba(0, 0, 0, 0.12);
            --ht-font: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            --ht-header-height: 108px;
            --bs-primary: #1D4A3A;
            --bs-link-color: #1D4A3A;
            --bs-link-hover-color: #15382c;
            --bs-body-bg: #F7F6F3;
            --bs-body-font-family: var(--ht-font);
            --bs-border-radius: 12px;
            --bs-body-color: #22252A;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--ht-font);
            background: var(--ht-bg);
            color: var(--ht-text);
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
            padding-top: var(--ht-header-height);
            margin: 0;
        }

        .container {
            max-width: 1200px;
        }

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

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

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

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            margin-top: 0;
            letter-spacing: -0.01em;
        }

        .img-fluid {
            max-width: 100%;
            height: auto;
        }

        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: 3px solid rgba(29, 74, 58, 0.3);
            outline-offset: 2px;
        }

        /* ===== Header ===== */
        .ht-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1030;
        }

        .ht-safety-line {
            height: 4px;
            background: var(--ht-primary);
        }

        .ht-toolbar {
            background: #14201A;
            height: 32px;
            display: flex;
            align-items: center;
        }

        .ht-toolbar .container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .ht-toolbar span {
            color: rgba(255, 255, 255, 0.75);
            font-size: 0.75rem;
            line-height: 32px;
        }

        .toolbar-links {
            display: flex;
            gap: 16px;
        }

        .toolbar-links a {
            color: rgba(255, 255, 255, 0.75);
            font-size: 0.75rem;
            line-height: 32px;
            transition: color 0.2s;
        }

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

        .ht-navbar {
            background: rgba(247, 246, 243, 0.94);
            -webkit-backdrop-filter: saturate(1.4) blur(12px);
            backdrop-filter: saturate(1.4) blur(12px);
            border-bottom: 1px solid rgba(0, 0, 0, 0.04);
        }

        .nav-inner {
            display: flex;
            align-items: center;
            gap: 24px;
            height: 72px;
        }

        .brand-logo {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-shrink: 0;
        }

        .brand-logo svg {
            width: 32px;
            height: 32px;
            display: block;
        }

        .brand-logo span {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--ht-primary);
            letter-spacing: -0.01em;
            white-space: nowrap;
        }

        .search-area {
            flex: 1;
            max-width: 40%;
            margin: 0 auto;
        }

        .search-box {
            display: flex;
            align-items: center;
            background: #fff;
            border: 1px solid var(--ht-primary-border);
            border-radius: 22px;
            height: 44px;
            padding: 0 16px;
            transition: border-color 0.2s ease, box-shadow 0.2s ease;
        }

        .search-box:focus-within {
            border-color: rgba(29, 74, 58, 0.4);
            box-shadow: 0 0 0 6px rgba(29, 74, 58, 0.08);
        }

        .search-icon {
            width: 16px;
            height: 16px;
            color: var(--ht-text-secondary);
            flex-shrink: 0;
        }

        .search-box input {
            flex: 1;
            border: none;
            outline: none;
            background: transparent;
            height: 40px;
            font-size: 0.875rem;
            color: var(--ht-text);
            margin-left: 8px;
            min-width: 0;
        }

        .search-box input::placeholder {
            color: var(--ht-text-weak);
        }

        .search-box kbd {
            font-family: var(--ht-font);
            font-size: 0.75rem;
            color: var(--ht-text-weak);
            background: var(--ht-bg-light);
            border-radius: 6px;
            padding: 2px 8px;
            flex-shrink: 0;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-shrink: 0;
        }

        .nav-link {
            font-size: 0.9375rem;
            color: var(--ht-text);
            position: relative;
            padding: 8px 4px;
            min-width: 40px;
            text-align: center;
            transition: color 0.2s ease;
        }

        .nav-link::after {
            content: "";
            position: absolute;
            left: 0;
            bottom: 0;
            width: 0;
            height: 2px;
            background: var(--ht-primary);
            transition: width 0.3s ease;
        }

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

        .nav-link:hover::after,
        .nav-link.active::after {
            width: 100%;
        }

        .nav-link.active {
            color: var(--ht-primary);
            font-weight: 600;
        }

        .btn-download {
            background: var(--ht-primary);
            color: #fff;
            border-radius: var(--ht-radius-sm);
            height: 40px;
            padding: 0 20px;
            font-size: 0.9375rem;
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            border: none;
            transition: background 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
            cursor: pointer;
        }

        .btn-download:hover {
            background: #234f3e;
            color: #fff;
            transform: translateY(-1px);
            box-shadow: var(--ht-shadow-sm);
        }

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

        .btn-download .btn-icon {
            display: none;
            width: 16px;
            height: 16px;
        }

        /* ===== 面包屑 ===== */
        .ht-breadcrumb {
            background: var(--ht-bg-light);
            border-bottom: 1px solid rgba(0, 0, 0, 0.04);
            min-height: 52px;
            display: flex;
            align-items: center;
        }

        .ht-breadcrumb-nav {
            margin-bottom: 0;
            flex-wrap: nowrap;
            overflow: hidden;
        }

        .ht-breadcrumb-nav .breadcrumb-item {
            font-size: 0.8125rem;
            white-space: nowrap;
        }

        .ht-breadcrumb-nav .breadcrumb-item a {
            color: var(--ht-text-weak);
            transition: color 0.2s;
        }

        .ht-breadcrumb-nav .breadcrumb-item a:hover {
            color: var(--ht-primary);
        }

        .ht-breadcrumb-nav .breadcrumb-item.active {
            color: var(--ht-text-secondary);
            max-width: 60%;
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
            display: inline-block;
            vertical-align: bottom;
        }

        .ht-breadcrumb-nav .breadcrumb-item+.breadcrumb-item::before {
            color: var(--ht-text-weak);
            content: "/";
            padding: 0 8px;
        }

        /* ===== 文章主体 ===== */
        .post-container {
            max-width: 1000px;
            margin: 0 auto;
            padding: 64px 24px 96px;
        }

        .post-main {
            max-width: 720px;
            margin: 0 auto;
        }

        .post-header {
            margin-bottom: 32px;
        }

        .post-title {
            font-size: clamp(1.6rem, 3vw, 2.4rem);
            font-weight: 800;
            line-height: 1.3;
            color: #14201A;
            margin-bottom: 20px;
            letter-spacing: -0.01em;
        }

        .post-meta {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 0;
            font-size: 0.8125rem;
            color: var(--ht-text-weak);
        }

        .post-meta .meta-dot {
            margin: 0 12px;
            color: var(--ht-text-weak);
        }

        .post-meta .meta-author {
            color: var(--ht-text-secondary);
        }

        .post-meta .meta-category {
            color: var(--ht-primary);
            background: var(--ht-primary-light);
            border-radius: 6px;
            padding: 4px 10px;
            font-size: 0.8125rem;
            font-weight: 500;
            transition: background 0.2s;
        }

        .post-meta .meta-category:hover {
            background: rgba(29, 74, 58, 0.14);
        }

        .post-cover {
            margin: 0 0 36px;
        }

        .post-cover img {
            width: 100%;
            border-radius: var(--ht-radius-md);
            display: block;
            object-fit: cover;
            aspect-ratio: 16 / 8;
        }

        /* ===== 正文排版 ===== */
        .post-content {
            font-size: 1.0625rem;
            line-height: 1.9;
            color: #333;
            word-wrap: break-word;
        }

        .post-content p {
            margin-bottom: 24px;
            margin-top: 0;
        }

        .post-content h2 {
            font-size: 1.625rem;
            font-weight: 700;
            margin: 48px 0 16px;
            padding-left: 12px;
            border-left: 4px solid var(--ht-primary);
            line-height: 1.4;
            color: var(--ht-text);
        }

        .post-content h3 {
            font-size: 1.3125rem;
            font-weight: 600;
            margin: 32px 0 12px;
            line-height: 1.4;
            color: var(--ht-text);
        }

        .post-content h4 {
            font-size: 1.125rem;
            font-weight: 600;
            margin: 24px 0 10px;
            color: var(--ht-text);
        }

        .post-content a {
            color: var(--ht-primary);
            text-decoration: underline;
            text-underline-offset: 3px;
        }

        .post-content a:hover {
            color: var(--ht-primary-dark);
        }

        .post-content blockquote {
            border-left: 4px solid var(--ht-accent);
            background: var(--ht-bg-light);
            padding: 20px;
            color: var(--ht-text-secondary);
            font-style: italic;
            border-radius: 0 10px 10px 0;
            margin: 24px 0;
        }

        .post-content blockquote p {
            margin-bottom: 0;
        }

        .post-content img {
            max-width: 100%;
            border-radius: var(--ht-radius-md);
            height: auto;
            margin: 24px 0 8px;
            display: block;
        }

        .post-content figcaption,
        .post-content .wp-caption-text {
            font-size: 0.8125rem;
            color: var(--ht-text-weak);
            text-align: center;
            margin-bottom: 24px;
            line-height: 1.5;
        }

        .post-content ul,
        .post-content ol {
            padding-left: 1.5em;
            line-height: 1.8;
            margin: 16px 0 24px;
        }

        .post-content ul li,
        .post-content ol li {
            margin-bottom: 6px;
        }

        .post-content ul {
            list-style-type: disc;
        }

        .post-content ol {
            list-style-type: decimal;
        }

        .post-content table {
            width: 100%;
            border-collapse: collapse;
            margin: 24px 0;
            font-size: 0.875rem;
            line-height: 1.6;
        }

        .post-content th {
            background: var(--ht-bg-light);
            padding: 10px 14px;
            border: 1px solid #E5E1DA;
            font-weight: 600;
            text-align: left;
            color: var(--ht-text);
        }

        .post-content td {
            padding: 10px 14px;
            border: 1px solid #E5E1DA;
        }

        .post-content tr:nth-child(even) td {
            background: rgba(0, 0, 0, 0.02);
        }

        .post-content pre {
            background: #14201A;
            color: #E5E7EB;
            border-radius: var(--ht-radius-sm);
            padding: 16px;
            overflow-x: auto;
            margin: 24px 0;
            font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, monospace;
            font-size: 0.875rem;
            line-height: 1.6;
        }

        .post-content code {
            font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, monospace;
            background: rgba(29, 74, 58, 0.06);
            border-radius: 4px;
            padding: 2px 6px;
            font-size: 0.875rem;
            color: #15382c;
        }

        .post-content pre code {
            background: transparent;
            padding: 0;
            color: inherit;
            font-size: inherit;
        }

        .post-content hr {
            border: none;
            border-top: 1px solid var(--ht-border);
            margin: 40px 0;
        }

        .post-content iframe {
            max-width: 100%;
            border-radius: var(--ht-radius-md);
        }

        /* ===== 上一篇 / 下一篇 ===== */
        .post-pager {
            display: flex;
            justify-content: space-between;
            gap: 16px;
            margin-top: 48px;
            padding-top: 32px;
            border-top: 1px solid #E5E1DA;
        }

        .pager-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 0.875rem;
            color: var(--ht-text-secondary);
            max-width: 46%;
            transition: color 0.2s ease;
            line-height: 1.5;
        }

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

        .pager-link svg {
            width: 14px;
            height: 14px;
            flex-shrink: 0;
        }

        .pager-next {
            text-align: right;
            justify-content: flex-end;
        }

        /* ===== 相关阅读 ===== */
        .related-posts {
            margin-top: 56px;
        }

        .related-posts h3 {
            font-size: 1.25rem;
            font-weight: 600;
            margin-bottom: 20px;
            padding-bottom: 12px;
            border-bottom: 1px solid var(--ht-border);
            color: var(--ht-text);
        }

        .related-card {
            display: flex;
            align-items: center;
            gap: 14px;
            background: #fff;
            border-radius: var(--ht-radius-md);
            border: 1px solid rgba(0, 0, 0, 0.05);
            box-shadow: var(--ht-shadow-sm);
            padding: 12px;
            height: 100%;
            transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
        }

        .related-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--ht-shadow-lg);
            border-color: rgba(29, 74, 58, 0.15);
        }

        .related-thumb {
            width: 120px;
            height: 80px;
            object-fit: cover;
            border-radius: 8px;
            flex-shrink: 0;
        }

        .related-info {
            min-width: 0;
            flex: 1;
        }

        .related-info h4 {
            font-size: 1rem;
            font-weight: 600;
            color: var(--ht-text);
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
            margin-bottom: 8px;
            transition: color 0.2s;
            line-height: 1.4;
        }

        .related-card:hover .related-info h4 {
            color: var(--ht-primary);
        }

        .related-info span {
            font-size: 0.8125rem;
            color: var(--ht-text-weak);
        }

        /* ===== 返回按钮 ===== */
        .post-back {
            margin-top: 40px;
        }

        .btn-back {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            height: 44px;
            padding: 0 20px;
            background: #fff;
            border: 1px solid rgba(29, 74, 58, 0.3);
            color: var(--ht-primary);
            border-radius: var(--ht-radius-sm);
            font-size: 0.9375rem;
            font-weight: 500;
            transition: all 0.2s ease;
            cursor: pointer;
        }

        .btn-back:hover {
            border-color: var(--ht-primary);
            background: rgba(29, 74, 58, 0.04);
            color: var(--ht-primary);
            transform: translateY(-1px);
        }

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

        .btn-back svg {
            width: 16px;
            height: 16px;
            flex-shrink: 0;
        }

        /* ===== 内容未找到 ===== */
        .post-not-found {
            text-align: center;
            padding: 80px 32px;
            background: #fff;
            border: 1px dashed #C8C4BE;
            border-radius: var(--ht-radius-lg);
        }

        .post-not-found p {
            font-size: 1.125rem;
            color: var(--ht-text-secondary);
            margin-bottom: 24px;
        }

        .post-not-found .btn-primary {
            background: var(--ht-primary);
            border: none;
            border-radius: var(--ht-radius-sm);
            height: 44px;
            padding: 0 24px;
            font-weight: 600;
            color: #fff;
            transition: all 0.2s ease;
            display: inline-flex;
            align-items: center;
            justify-content: center;
        }

        .post-not-found .btn-primary:hover {
            background: var(--ht-primary-dark);
            transform: translateY(-1px);
            box-shadow: var(--ht-shadow-sm);
        }

        /* ===== Footer ===== */
        .ht-footer {
            background: var(--ht-dark);
            color: rgba(255, 255, 255, 0.8);
            padding: 48px 0 24px;
        }

        .footer-inner {
            display: grid;
            grid-template-columns: 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 32px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .footer-logo {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .footer-logo svg {
            width: 28px;
            height: 28px;
            display: block;
        }

        .footer-logo span {
            font-size: 1.25rem;
            font-weight: 700;
            color: #fff;
            white-space: nowrap;
        }

        .footer-brand p {
            margin-top: 12px;
            color: rgba(255, 255, 255, 0.55);
            font-size: 0.875rem;
            line-height: 1.6;
        }

        .footer-nav h5,
        .footer-download h5 {
            color: rgba(255, 255, 255, 0.9);
            font-size: 0.875rem;
            font-weight: 600;
            margin-bottom: 16px;
        }

        .footer-nav a {
            display: block;
            color: rgba(255, 255, 255, 0.55);
            font-size: 0.875rem;
            margin-bottom: 10px;
            transition: color 0.2s;
        }

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

        .footer-platforms {
            display: flex;
            gap: 12px;
        }

        .platform-btn {
            width: 44px;
            height: 44px;
            border-radius: var(--ht-radius-sm);
            border: 1px solid rgba(255, 255, 255, 0.14);
            display: flex;
            align-items: center;
            justify-content: center;
            transition: all 0.2s ease;
            background: transparent;
        }

        .platform-btn svg {
            width: 18px;
            height: 18px;
            stroke: rgba(255, 255, 255, 0.7);
            fill: none;
            stroke-width: 1.8;
            stroke-linecap: round;
            stroke-linejoin: round;
        }

        .platform-btn:hover {
            border-color: var(--ht-accent);
            transform: translateY(-2px);
        }

        .platform-btn:hover svg {
            stroke: var(--ht-accent);
        }

        .footer-bottom {
            display: flex;
            justify-content: space-between;
            padding-top: 24px;
            font-size: 0.75rem;
            color: rgba(255, 255, 255, 0.5);
        }

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

        /* ===== 响应式 ===== */
        @media (max-width: 991.98px) {
            :root {
                --ht-header-height: 160px;
            }

            .nav-inner {
                flex-wrap: wrap;
                height: auto;
                padding: 12px 0;
                gap: 12px;
            }

            .brand-logo {
                order: 1;
            }

            .nav-links {
                order: 2;
                margin-left: auto;
            }

            .search-area {
                order: 3;
                max-width: 100%;
                flex: 0 0 100%;
                margin: 0;
            }

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

        @media (max-width: 767.98px) {
            :root {
                --ht-header-height: 156px;
            }

            .toolbar-links {
                display: none;
            }

            .btn-download .btn-text {
                display: none;
            }

            .btn-download .btn-icon {
                display: block;
            }

            .btn-download {
                width: 40px;
                padding: 0;
                justify-content: center;
            }

            .ht-breadcrumb-nav .breadcrumb-item:nth-child(2) {
                display: none;
            }

            .ht-breadcrumb-nav .breadcrumb-item.active {
                max-width: 70%;
            }

            .post-container {
                padding: 40px 16px 64px;
            }

            .post-title {
                font-size: 1.5rem;
            }

            .post-meta {
                font-size: 0.75rem;
                gap: 4px;
            }

            .post-meta .meta-dot {
                margin: 0 8px;
            }

            .post-pager {
                flex-direction: column;
                gap: 12px;
            }

            .pager-link {
                max-width: 100%;
            }

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

            .footer-bottom {
                flex-direction: column;
                gap: 8px;
            }

            .related-card {
                padding: 12px;
            }

            .related-thumb {
                width: 104px;
                height: 72px;
            }
        }

        @media (max-width: 575.98px) {
            .nav-links {
                gap: 8px;
            }

            .nav-link {
                font-size: 0.875rem;
                padding: 8px 2px;
            }

            .brand-logo span {
                font-size: 1.125rem;
            }

            .search-box kbd {
                display: none;
            }

            .post-content {
                font-size: 1rem;
                line-height: 1.85;
            }

            .post-content h2 {
                font-size: 1.375rem;
                margin-top: 36px;
            }

            .post-content h3 {
                font-size: 1.1875rem;
            }
        }

        @media (prefers-reduced-motion: reduce) {
            *,
            *::before,
            *::after {
                animation-duration: 0.01ms !important;
                transition-duration: 0.01ms !important;
                scroll-behavior: auto !important;
            }
        }