/* roulang page: index */
:root {
  --primary: #1B7A5A;
  --primary-dark: #145E46;
  --primary-deep: #0E4C39;
  --ink: #111417;
  --bg: #F6F8F7;
  --white: #FFFFFF;
  --text: #2B322E;
  --text-weak: #7A857F;
  --border: #E4E8E6;
  --gold: #C9A96A;
  --radius-btn: 6px;
  --radius-card: 8px;
  --radius-lg: 12px;
  --shadow-sm: 0 1px 3px rgba(17,20,23,0.05);
  --shadow-hover: 0 10px 24px rgba(17,20,23,0.10);
  --font-sans: "Noto Sans SC", "Source Han Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--text);
  line-height: 1.75;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  padding-top: 64px;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button, input { font-family: inherit; }
ul, ol { list-style-position: inside; }
a:focus-visible, button:focus-visible, input:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ===== 按钮 ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 44px;
  padding: 0 24px;
  border-radius: var(--radius-btn);
  font-size: 15px;
  font-weight: 600;
  line-height: 1;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all .25s ease-out;
  white-space: nowrap;
}
.btn-lg { height: 48px; padding: 0 28px; font-size: 16px; }
.btn-sm { height: 40px; padding: 0 20px; font-size: 14px; }
.btn-primary { background: var(--primary); color: var(--white); }
.btn-primary:hover { background: var(--primary-dark); transform: translateY(-1px); }
.btn-primary:active { background: var(--primary-deep); transform: translateY(0); }
.btn-outline { background: transparent; border-color: var(--ink); color: var(--ink); }
.btn-outline:hover { border-color: var(--primary); color: var(--primary); transform: translateY(-1px); }
.btn-outline-white { background: transparent; border-color: rgba(255,255,255,0.75); color: var(--white); }
.btn-outline-white:hover { border-color: var(--gold); color: var(--gold); transform: translateY(-1px); }

/* ===== 品牌行 ===== */
.brand-bar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 64px;
  background: var(--white);
  border-bottom: 1px solid var(--border);
  z-index: 100;
}
.brand-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}
.brand {
  display: inline-flex;
  align-items: center;
  color: var(--ink);
  font-size: 22px;
  font-weight: 800;
  letter-spacing: 0;
}
.brand-icon {
  width: 34px;
  height: 34px;
  margin-right: 10px;
  flex-shrink: 0;
}
.brand-text { line-height: 1.2; }

/* ===== 频道行 ===== */
.channel-nav {
  overflow-x: auto;
  overflow-y: hidden;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  scrollbar-width: none;
  -ms-overflow-style: none;
}
.channel-nav::-webkit-scrollbar { display: none; }
.channel-row {
  display: flex;
  align-items: center;
  gap: 28px;
  height: 48px;
  padding: 0 24px;
  min-width: max-content;
}
.channel-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 48px;
  padding: 0 2px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text);
  position: relative;
  white-space: nowrap;
}
.channel-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 2px;
  background: var(--primary);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .25s ease-out;
}
.channel-link:hover,
.channel-link.active { color: var(--primary); }
.channel-link:hover::after,
.channel-link.active::after { transform: scaleX(1); }

/* ===== Hero ===== */
.hero {
  position: relative;
  min-height: 640px;
  height: calc(100vh - 112px);
  max-height: 920px;
  display: flex;
  align-items: center;
  background-size: cover;
  background-position: center;
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(17,20,23,0.85) 0%, rgba(17,20,23,0.35) 100%);
}
.hero-content {
  position: relative;
  z-index: 2;
  max-width: 760px;
  color: var(--white);
  padding: 40px 0;
}
.hero-content h1 {
  font-size: 54px;
  line-height: 1.2;
  font-weight: 900;
  letter-spacing: -0.5px;
  animation: riseIn .7s ease-out both;
}
.hero-sub {
  margin-top: 20px;
  font-size: 18px;
  line-height: 1.6;
  color: rgba(255,255,255,0.85);
  max-width: 560px;
  animation: riseIn .7s ease-out .15s both;
}
.hero-actions {
  margin-top: 28px;
  display: flex;
  gap: 16px;
  animation: riseIn .7s ease-out .35s both;
}
@keyframes riseIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.hero-scroll {
  position: absolute;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  width: 2px;
  height: 36px;
  background: rgba(255,255,255,0.25);
}
.hero-scroll::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 2px;
  height: 10px;
  background: var(--white);
  animation: scrollDrop 1.2s ease-out .4s both;
}
@keyframes scrollDrop {
  from { transform: translateY(-10px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

/* ===== 卖点三连 ===== */
.features { padding: 96px 0; }
.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
}
.feature-item {
  padding: 24px 40px 24px 0;
}
.feature-item + .feature-item {
  border-left: 1px solid var(--border);
  padding-left: 40px;
}
.feature-num {
  display: block;
  font-size: 64px;
  line-height: 1;
  font-weight: 900;
  color: var(--gold);
  letter-spacing: 0.05em;
}
.feature-item h3 {
  margin-top: 16px;
  font-size: 22px;
  font-weight: 800;
  color: var(--ink);
}
.feature-item p {
  margin-top: 10px;
  font-size: 15px;
  line-height: 1.7;
  color: var(--text-weak);
}

/* ===== 场景演示 ===== */
.scenes { padding-bottom: 96px; }
.scene-banner {
  position: relative;
  min-height: 340px;
  display: flex;
  align-items: flex-end;
  background-size: cover;
  background-position: center;
}
.scene-banner::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(17,20,23,0.78) 0%, rgba(17,20,23,0.15) 100%);
}
.scene-banner .container {
  position: relative;
  z-index: 1;
  padding: 48px 24px;
}
.scene-banner p {
  max-width: 620px;
  color: var(--white);
  font-size: 28px;
  line-height: 1.4;
  font-weight: 700;
}
.scene-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
  padding: 80px 0 0;
}
.scene-block img {
  width: 100%;
  height: 320px;
  object-fit: cover;
  border-radius: var(--radius-lg);
}
.scene-text h3 {
  font-size: 28px;
  font-weight: 800;
  color: var(--ink);
  margin-bottom: 14px;
}
.scene-text p {
  font-size: 16px;
  line-height: 1.75;
  color: var(--text-weak);
}
.scene-block.reverse .scene-text { order: -1; }

/* ===== 社会认同 ===== */
.trust {
  padding: 96px 0;
  background: var(--white);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.stats-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  text-align: center;
  margin-bottom: 64px;
}
.stat strong {
  display: block;
  font-size: 56px;
  line-height: 1;
  font-weight: 900;
  color: var(--gold);
}
.stat span {
  display: block;
  margin-top: 10px;
  font-size: 14px;
  color: var(--text-weak);
}
.section-title {
  font-size: 32px;
  font-weight: 800;
  color: var(--ink);
  margin-bottom: 40px;
}
.quotes-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.quote-card {
  background: var(--white);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-sm);
  padding: 24px;
  transition: transform .3s ease-out, box-shadow .3s ease-out;
}
.quote-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}
.quote-head {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 14px;
}
.avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: #E4E8E6;
  color: var(--text-weak);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  font-weight: 600;
  flex-shrink: 0;
}
.quote-name {
  display: block;
  font-size: 14px;
  font-weight: 600;
  color: var(--ink);
}
.quote-role {
  display: block;
  font-size: 12px;
  color: var(--text-weak);
}
.quote-card p {
  font-size: 15px;
  line-height: 1.7;
  color: var(--text);
}

/* ===== 最新动态 ===== */
.latest { padding: 96px 0; }
.news-list {
  border-top: 1px solid var(--border);
}
.news-row {
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 20px 8px;
  border-bottom: 1px solid var(--border);
  transition: background .2s ease-out;
}
.news-row:hover { background: var(--white); }
.news-date {
  width: 110px;
  flex-shrink: 0;
  font-size: 13px;
  color: var(--text-weak);
  font-variant-numeric: tabular-nums;
  line-height: 1.4;
}
.news-cat {
  flex-shrink: 0;
  font-size: 12px;
  font-weight: 500;
  color: var(--primary);
  background: rgba(27,122,90,0.10);
  padding: 4px 10px;
  border-radius: 4px;
}
.news-body {
  flex: 1;
  min-width: 0;
}
.news-title {
  display: block;
  font-size: 18px;
  font-weight: 700;
  color: var(--ink);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.news-summary {
  display: block;
  font-size: 14px;
  color: var(--text-weak);
  margin-top: 4px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.news-arrow {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  color: var(--primary);
}
.news-empty {
  text-align: center;
  padding: 64px 24px;
  border-bottom: 1px solid var(--border);
}
.news-empty-icon {
  display: block;
  font-size: 36px;
  line-height: 1;
  color: var(--text-weak);
  margin-bottom: 12px;
}
.news-empty p {
  font-size: 18px;
  font-weight: 700;
  color: var(--ink);
}
.news-empty-sub {
  display: block;
  margin-top: 6px;
  font-size: 14px;
  color: var(--text-weak);
}
.latest-more {
  margin-top: 32px;
  text-align: center;
}

/* ===== 页脚 ===== */
.footer {
  background: var(--ink);
  color: rgba(255,255,255,0.85);
  padding: 64px 0 96px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1.2fr 1.6fr;
  gap: 48px;
}
.footer-logo {
  display: inline-block;
  font-size: 22px;
  font-weight: 800;
  color: var(--white);
}
.footer-brand p {
  margin-top: 16px;
  font-size: 14px;
  line-height: 1.7;
  color: rgba(255,255,255,0.72);
}
.footer-col h4 {
  font-size: 14px;
  font-weight: 600;
  color: var(--white);
  margin-bottom: 16px;
}
.footer-col a,
.footer-col span {
  display: block;
  font-size: 14px;
  color: rgba(255,255,255,0.72);
  margin-bottom: 10px;
  transition: color .2s ease-out;
}
.footer-col a:hover { color: var(--gold); }
.footer-subscribe form {
  display: flex;
  gap: 10px;
}
.footer-subscribe input[type="email"] {
  flex: 1;
  min-width: 0;
  height: 44px;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.16);
  border-radius: var(--radius-btn);
  padding: 0 14px;
  color: var(--white);
  font-size: 14px;
  transition: border-color .2s ease-out, box-shadow .2s ease-out;
}
.footer-subscribe input[type="email"]::placeholder { color: rgba(255,255,255,0.5); }
.footer-subscribe input[type="email"]:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 2px rgba(27,122,90,0.25);
}
.footer-subscribe .btn { flex-shrink: 0; }
.footer-subscribe .btn-primary:hover { background: var(--primary-dark); }
.footer-note {
  margin-top: 10px;
  font-size: 12px;
  color: rgba(255,255,255,0.5);
}
.form-success {
  font-size: 14px;
  color: var(--gold);
  padding: 10px 0;
}
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.14);
  margin-top: 48px;
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  font-size: 12px;
  color: rgba(255,255,255,0.5);
}

/* ===== 底部固定转化条 ===== */
.sticky-cta {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  height: 64px;
  background: var(--white);
  border-top: 1px solid var(--border);
  box-shadow: 0 -4px 12px rgba(17,20,23,0.06);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
  transform: translateY(100%);
  transition: transform .3s ease-out;
  z-index: 90;
}
.sticky-cta.visible { transform: translateY(0); }
.sticky-text {
  font-size: 14px;
  font-weight: 600;
  color: var(--ink);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 40%;
}
.sticky-cta .btn { flex-shrink: 0; }

/* ===== 响应式 ===== */
@media (min-width: 769px) {
  .channel-row {
    max-width: 1280px;
    margin: 0 auto;
  }
}

@media (max-width: 1199px) {
  .features { padding: 80px 0; }
  .feature-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 40px 32px;
  }
  .feature-item + .feature-item {
    border-left: none;
    padding-left: 0;
  }
  .feature-item { padding: 0; }
  .scenes { padding-bottom: 80px; }
  .scene-block { gap: 40px; }
  .trust { padding: 80px 0; }
  .quotes-row { grid-template-columns: repeat(2, 1fr); }
  .quote-card:last-child { grid-column: 1 / -1; }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 40px;
  }
}

@media (max-width: 768px) {
  body { padding-top: 64px; }
  .container { padding: 0 16px; }
  .brand-row { padding: 0 16px; }
  .brand { font-size: 18px; }
  .brand-icon { width: 30px; height: 30px; margin-right: 8px; }
  .btn-brand { height: 40px; padding: 0 16px; font-size: 14px; }
  .channel-row { padding: 0 16px; gap: 20px; }
  .channel-link { font-size: 15px; }

  .hero {
    min-height: 420px;
    height: 70vh;
    max-height: none;
    align-items: center;
  }
  .hero-content h1 { font-size: 32px; letter-spacing: 0; }
  .hero-sub { font-size: 16px; margin-top: 16px; }
  .hero-actions { flex-direction: column; gap: 12px; margin-top: 24px; }
  .hero-actions .btn { width: 100%; }

  .features { padding: 64px 0; }
  .feature-grid { grid-template-columns: 1fr; gap: 32px; }
  .feature-item p { font-size: 15px; }
  .scenes { padding-bottom: 64px; }
  .scene-banner { min-height: 240px; }
  .scene-banner .container { padding: 32px 16px; }
  .scene-banner p { font-size: 20px; }
  .scene-block {
    grid-template-columns: 1fr;
    gap: 20px;
    padding: 48px 0 0;
  }
  .scene-block img { height: 220px; }
  .scene-block.reverse .scene-text { order: 0; }

  .trust { padding: 64px 0; }
  .stats-row { grid-template-columns: repeat(2, 1fr); gap: 32px 16px; margin-bottom: 48px; }
  .stat strong { font-size: 44px; }
  .section-title { font-size: 26px; margin-bottom: 24px; }
  .quotes-row { grid-template-columns: 1fr; }
  .quote-card:last-child { grid-column: auto; }

  .latest { padding: 64px 0; }
  .news-row { flex-wrap: wrap; gap: 8px 16px; padding: 16px 4px; }
  .news-date { width: auto; }
  .news-body { order: 3; flex-basis: 100%; }
  .news-arrow { margin-left: auto; }

  .footer { padding: 48px 0 80px; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; gap: 8px; }

  .sticky-cta { height: 48px; padding: 0 16px; }
  .sticky-text { font-size: 13px; max-width: 50%; }
  .sticky-cta .btn { height: 36px; padding: 0 16px; font-size: 14px; }
}

/* roulang page: category1 */
:root {
  --primary: #1B7A5A;
  --primary-dark: #145E46;
  --primary-deep: #0F4D3B;
  --ink: #111417;
  --bg: #F6F8F7;
  --card-bg: #FFFFFF;
  --text: #2B322E;
  --text-secondary: #7A857F;
  --border: #E4E8E6;
  --gold: #C9A96A;
  --radius-sm: 4px;
  --radius: 8px;
  --radius-lg: 12px;
  --shadow: 0 1px 3px rgba(17,20,23,0.05);
  --shadow-lg: 0 10px 24px rgba(17,20,23,0.10);
  --container: 1280px;
  --section-space: 96px;
  --ease: cubic-bezier(0.25, 0.46, 0.45, 0.94);
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: "Noto Sans SC", "Source Han Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 16px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; transition: color 0.25s ease-out; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
input { font-family: inherit; }
ul, ol { list-style: none; }
.container { max-width: var(--container); margin: 0 auto; padding-left: 24px; padding-right: 24px; }
.section { padding: var(--section-space) 0; }
.section-head { margin-bottom: 48px; }
.section-head h2 {
  font-size: 34px;
  font-weight: 800;
  line-height: 1.3;
  color: var(--ink);
  margin-bottom: 12px;
  letter-spacing: -0.01em;
}
.section-head p { font-size: 15px; color: var(--text-secondary); max-width: 560px; }

/* ===== 按钮 ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 44px;
  padding: 0 24px;
  font-size: 15px;
  font-weight: 600;
  border-radius: 6px;
  border: 1px solid transparent;
  transition: all 0.25s ease-out;
  line-height: 1;
  white-space: nowrap;
  text-decoration: none;
}
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); transform: translateY(-1px); box-shadow: 0 4px 12px rgba(27,122,90,0.25); }
.btn-primary:active { background: var(--primary-deep); transform: translateY(0); box-shadow: none; }
.btn-primary:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; }
.btn-outline-light { background: transparent; border-color: rgba(255,255,255,0.85); color: #fff; }
.btn-outline-light:hover { border-color: var(--gold); color: var(--gold); transform: translateY(-1px); }
.btn-outline-light:active { background: rgba(255,255,255,0.1); transform: translateY(0); }
.btn-outline-light:focus-visible { outline: 2px solid var(--gold); outline-offset: 2px; }
.btn-lg { height: 48px; padding: 0 32px; font-size: 16px; }
.btn-brand { height: 40px; padding: 0 20px; font-size: 14px; border-radius: 6px; }

/* ===== 品牌行 ===== */
.brand-bar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: #fff;
  border-bottom: 1px solid var(--border);
  height: 64px;
}
.brand-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}
.brand-icon { width: 40px; height: 40px; flex-shrink: 0; }
.brand-text {
  font-size: 22px;
  font-weight: 800;
  color: var(--ink);
  letter-spacing: 0;
  line-height: 1.2;
}

/* ===== 频道行 ===== */
.channel-bar {
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  height: 48px;
}
.channel-row {
  display: flex;
  align-items: center;
  gap: 28px;
  height: 48px;
  overflow-x: auto;
  scrollbar-width: none;
  -ms-overflow-style: none;
}
.channel-row::-webkit-scrollbar { display: none; }
.channel-link {
  font-size: 15px;
  font-weight: 500;
  color: var(--text);
  padding: 12px 0 10px;
  position: relative;
  white-space: nowrap;
  border-bottom: 2px solid transparent;
  transition: color 0.25s ease-out, border-color 0.25s ease-out;
}
.channel-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 0;
  height: 2px;
  background: var(--primary);
  transition: width 0.25s ease-out;
}
.channel-link:hover, .channel-link.active { color: var(--primary); }
.channel-link.active::after, .channel-link:hover::after { width: 100%; }

/* ===== Hero ===== */
.hero-category {
  position: relative;
  min-height: 520px;
  display: flex;
  align-items: center;
  background-color: var(--ink);
  overflow: hidden;
}
.hero-bg {
  position: absolute;
  inset: 0;
  background-image: url('/assets/images/backpic/back-1.png');
  background-size: cover;
  background-position: center;
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(17,20,23,0.85) 0%, rgba(17,20,23,0.45) 60%, rgba(17,20,23,0.35) 100%);
}
.hero-content {
  position: relative;
  z-index: 2;
  color: #fff;
  max-width: 720px;
  padding: 80px 0;
}
.hero-content h1 {
  font-size: 50px;
  font-weight: 900;
  line-height: 1.2;
  letter-spacing: -0.5px;
  margin-bottom: 16px;
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 0.5s ease-out, transform 0.5s ease-out;
}
.hero-content h1.animate, .hero-content p.animate, .hero-content .hero-actions.animate {
  opacity: 1;
  transform: translateY(0);
}
.hero-content p {
  font-size: 17px;
  color: rgba(255,255,255,0.85);
  max-width: 480px;
  margin-bottom: 24px;
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 0.5s ease-out 0.1s, transform 0.5s ease-out 0.1s;
}
.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 0.5s ease-out 0.2s, transform 0.5s ease-out 0.2s;
}
.hero-scroll {
  position: absolute;
  bottom: 28px;
  left: 50%;
  transform: translateX(-50%);
  color: rgba(255,255,255,0.4);
  font-size: 12px;
  letter-spacing: 0.05em;
  animation: scroll-hint 1s ease-out 0.8s;
}
@keyframes scroll-hint {
  0% { opacity: 0; transform: translate(-50%, -8px); }
  100% { opacity: 1; transform: translate(-50%, 0); }
}

/* ===== 分类简介 ===== */
.intro-grid {
  display: grid;
  grid-template-columns: 6fr 4fr;
  gap: 56px;
  align-items: center;
}
.intro-text h2 {
  font-size: 32px;
  font-weight: 800;
  color: var(--ink);
  line-height: 1.3;
  margin-bottom: 20px;
}
.intro-text p {
  font-size: 15px;
  line-height: 1.8;
  color: var(--text);
  margin-bottom: 16px;
}
.intro-image {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow);
}
.intro-image img { width: 100%; height: 320px; object-fit: cover; }

/* ===== 子内容区 ===== */
.topic-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.topic-item {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 28px;
  transition: transform 0.25s ease-out, box-shadow 0.25s ease-out;
}
.topic-item:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}
.topic-icon {
  width: 48px;
  height: 48px;
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.topic-icon svg { width: 40px; height: 40px; }
.topic-item h3 {
  font-size: 20px;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 12px;
  line-height: 1.4;
}
.topic-item p {
  font-size: 14px;
  line-height: 1.75;
  color: var(--text-secondary);
}

/* ===== 适用场景 ===== */
.scenario-section {
  background: var(--card-bg);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.scenario-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
}
.scenario-item {
  text-align: left;
}
.scenario-num {
  font-size: 40px;
  font-weight: 900;
  color: var(--gold);
  line-height: 1;
  margin-bottom: 16px;
  display: block;
}
.scenario-item h3 {
  font-size: 17px;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 8px;
}
.scenario-item p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.65;
}

/* ===== 互链区 ===== */
.cross-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}
.cross-card {
  display: flex;
  align-items: center;
  gap: 20px;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  transition: transform 0.25s ease-out, box-shadow 0.25s ease-out;
}
.cross-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}
.cross-thumb {
  width: 80px;
  height: 80px;
  border-radius: 8px;
  overflow: hidden;
  flex-shrink: 0;
}
.cross-thumb img { width: 100%; height: 100%; object-fit: cover; }
.cross-info h3 {
  font-size: 17px;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 6px;
}
.cross-info p {
  font-size: 13px;
  color: var(--text-secondary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 380px;
}

/* ===== FAQ ===== */
.faq-list { max-width: 760px; }
.faq-item {
  border-bottom: 1px solid var(--border);
}
.faq-item:first-child { border-top: 1px solid var(--border); }
.faq-question {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 22px 0;
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  text-align: left;
  transition: color 0.25s ease-out;
}
.faq-question:hover { color: var(--primary); }
.faq-icon {
  position: relative;
  width: 16px;
  height: 16px;
  flex-shrink: 0;
  margin-left: 16px;
}
.faq-icon::before, .faq-icon::after {
  content: "";
  position: absolute;
  background: var(--primary);
  transition: all 0.25s ease-out;
  border-radius: 1px;
}
.faq-icon::before { left: 0; top: 7px; width: 16px; height: 2px; }
.faq-icon::after { left: 7px; top: 0; width: 2px; height: 16px; }
.faq-item.active .faq-icon::after { transform: scaleY(0); }
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease-out;
}
.faq-item.active .faq-answer { max-height: 400px; }
.faq-answer p {
  padding: 0 0 22px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--text-secondary);
}

/* ===== CTA区 ===== */
.cta-section {
  background: var(--ink);
  padding: 80px 0;
  text-align: center;
}
.cta-section h2 {
  font-size: 34px;
  font-weight: 800;
  color: #fff;
  margin-bottom: 12px;
}
.cta-section p {
  font-size: 16px;
  color: rgba(255,255,255,0.72);
  margin-bottom: 32px;
  max-width: 520px;
  margin-left: auto;
  margin-right: auto;
}
.cta-section .btn { min-width: 180px; }

/* ===== 页脚 ===== */
.footer {
  background: var(--ink);
  padding: 64px 0 32px;
  color: rgba(255,255,255,0.85);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1.4fr;
  gap: 48px;
  margin-bottom: 48px;
}
.footer-logo {
  font-size: 20px;
  font-weight: 800;
  color: #fff;
  display: block;
  margin-bottom: 12px;
}
.footer-brand p {
  font-size: 14px;
  line-height: 1.7;
  color: rgba(255,255,255,0.72);
  max-width: 300px;
}
.footer-col h4 {
  font-size: 14px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 16px;
  letter-spacing: 0.02em;
}
.footer-col a, .footer-col span {
  display: block;
  font-size: 14px;
  color: rgba(255,255,255,0.72);
  margin-bottom: 10px;
  transition: color 0.25s ease-out;
  line-height: 1.5;
}
.footer-col a:hover { color: var(--gold); }
.footer-subscribe form {
  display: flex;
  gap: 8px;
  margin-bottom: 12px;
}
.footer-subscribe input {
  flex: 1;
  height: 40px;
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.14);
  border-radius: 6px;
  padding: 0 14px;
  color: #fff;
  font-size: 14px;
  outline: none;
  transition: border-color 0.25s ease-out, background 0.25s ease-out;
}
.footer-subscribe input::placeholder { color: rgba(255,255,255,0.5); }
.footer-subscribe input:focus {
  border-color: var(--gold);
  background: rgba(255,255,255,0.14);
}
.footer-subscribe .btn { height: 40px; padding: 0 18px; font-size: 14px; }
.footer-note { font-size: 12px; color: rgba(255,255,255,0.5); }
.footer-bottom {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
  padding-top: 24px;
  border-top: 1px solid rgba(255,255,255,0.14);
  font-size: 12px;
  color: rgba(255,255,255,0.5);
}

/* ===== 底部转化条 ===== */
.cta-bar {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  height: 64px;
  background: #fff;
  border-top: 1px solid var(--border);
  box-shadow: 0 -4px 12px rgba(17,20,23,0.06);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 32px;
  transform: translateY(100%);
  transition: transform 0.3s ease-out;
  z-index: 90;
  visibility: hidden;
}
.cta-bar.visible {
  transform: translateY(0);
  visibility: visible;
}
.cta-bar-text {
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
}
.cta-bar .btn { height: 40px; padding: 0 20px; font-size: 14px; }
body { padding-bottom: 0; }
main { padding-bottom: 0; }

/* ===== 响应式 ===== */
@media (min-width: 1200px) {
  .hero-category { min-height: 560px; }
}
@media (max-width: 1199px) {
  :root { --section-space: 80px; }
  .scenario-grid { grid-template-columns: repeat(2, 1fr); gap: 24px; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
}
@media (max-width: 991px) {
  .intro-grid { grid-template-columns: 1fr; gap: 36px; }
  .intro-image img { height: 280px; }
  .topic-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 767px) {
  :root { --section-space: 64px; }
  .container { padding-left: 16px; padding-right: 16px; }
  .brand-text { font-size: 19px; }
  .brand-icon { width: 36px; height: 36px; }
  .btn-brand { padding: 0 16px; font-size: 13px; height: 38px; }
  .brand-row { height: 60px; }
  .brand-bar { height: 60px; }
  .channel-row { gap: 20px; }
  .channel-link { font-size: 15px; padding-top: 12px; padding-bottom: 12px; min-height: 40px; display: inline-flex; align-items: center; }
  .hero-category { min-height: 70vh; }
  .hero-content { padding: 60px 0; }
  .hero-content h1 { font-size: 32px; }
  .hero-content p { font-size: 16px; }
  .hero-actions { flex-direction: column; align-items: stretch; }
  .hero-actions .btn { width: 100%; }
  .section-head h2 { font-size: 26px; }
  .topic-grid { grid-template-columns: 1fr; }
  .scenario-grid { grid-template-columns: 1fr; }
  .cross-grid { grid-template-columns: 1fr; }
  .cross-info p { max-width: 220px; }
  .footer-grid { grid-template-columns: 1fr; gap: 24px; }
  .footer { padding-top: 48px; }
  .footer-bottom { flex-direction: column; }
  .cta-bar { height: 52px; padding: 0 16px; }
  .cta-bar-text { font-size: 13px; max-width: 55%; overflow: hidden; white-space: nowrap; text-overflow: ellipsis; }
  .cta-bar .btn { height: 36px; padding: 0 14px; font-size: 13px; }
  .footer-subscribe form { flex-direction: column; }
  .footer-subscribe .btn { width: 100%; }
  .footer-bottom { text-align: center; }
}
@media (max-width: 520px) {
  .brand-text { font-size: 18px; }
  .brand-icon { width: 32px; height: 32px; }
  .hero-content h1 { font-size: 28px; }
  .scenario-num { font-size: 34px; }
  .topic-item { padding: 24px 20px; }
}

/* roulang page: article */
:root {
  --primary: #1B7A5A;
  --primary-dark: #145E46;
  --ink: #111417;
  --bg: #F6F8F7;
  --white: #FFFFFF;
  --text: #2B322E;
  --text-secondary: #7A857F;
  --border: #E4E8E6;
  --gold: #C9A96A;
  --radius-sm: 4px;
  --radius-md: 6px;
  --radius-lg: 8px;
  --radius-xl: 12px;
  --shadow-sm: 0 1px 3px rgba(17,20,23,0.05);
  --shadow-lg: 0 10px 24px rgba(17,20,23,0.10);
  --container: 1280px;
  --spacer: 96px;
  --transition: all .25s ease-out;
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: "Noto Sans SC", "Source Han Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 16px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  padding-bottom: 64px;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; transition: var(--transition); }
a:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; border-radius: var(--radius-sm); }
button, input { font-family: inherit; }
.container { max-width: var(--container); margin: 0 auto; padding: 0 24px; }
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 44px;
  padding: 0 28px;
  border-radius: var(--radius-md);
  font-size: 15px;
  font-weight: 600;
  border: 1px solid transparent;
  cursor: pointer;
  transition: var(--transition);
  text-align: center;
  white-space: nowrap;
}
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); transform: translateY(-1px); }
.btn-primary:active { background: #0F4C38; }
.btn-primary:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; border-radius: var(--radius-md); }
.btn-outline { background: transparent; color: #fff; border-color: rgba(255,255,255,0.7); }
.btn-outline:hover { border-color: var(--gold); color: var(--gold); }
.brand-bar {
  position: sticky;
  top: 0;
  background: var(--white);
  border-bottom: 1px solid var(--border);
  z-index: 100;
}
.brand-row {
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.brand { display: flex; align-items: center; gap: 10px; }
.brand-icon { width: 34px; height: 34px; flex-shrink: 0; }
.brand-text { font-size: 22px; font-weight: 800; color: var(--ink); letter-spacing: 0; }
.channel-bar { background: var(--bg); border-bottom: 1px solid var(--border); }
.channel-row {
  display: flex;
  gap: 28px;
  height: 48px;
  overflow-x: auto;
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
  align-items: center;
}
.channel-row::-webkit-scrollbar { display: none; }
.channel-item {
  position: relative;
  font-size: 15px;
  font-weight: 500;
  color: var(--text);
  white-space: nowrap;
  line-height: 48px;
  padding: 0 2px;
  flex-shrink: 0;
}
.channel-item::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 2px;
  background: var(--primary);
  transition: width .25s ease-out;
}
.channel-item:hover { color: var(--primary); }
.channel-item:hover::after { width: 100%; }
.channel-item.active { color: var(--primary); font-weight: 600; }
.channel-item.active::after { width: 100%; }
.article-main { padding: 48px 0 88px; }
.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 14px;
  line-height: 1.6;
  color: var(--text-secondary);
  background: rgba(27,122,90,0.04);
  padding: 12px 16px;
  border-radius: var(--radius-lg);
  margin-bottom: 40px;
}
.breadcrumb a { color: var(--text-secondary); }
.breadcrumb a:hover { color: var(--primary); }
.breadcrumb-sep { color: var(--border); }
.breadcrumb-current {
  max-width: 420px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  color: var(--text);
}
.article-detail { max-width: 860px; margin: 0 auto; }
.article-header { margin-bottom: 24px; }
.article-title {
  font-size: 44px;
  line-height: 1.2;
  font-weight: 900;
  color: var(--ink);
  letter-spacing: -0.5px;
  margin: 0 0 16px;
}
.article-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--text-secondary);
}
.meta-dot { color: var(--border); }
.article-cover { margin-bottom: 40px; }
.article-cover img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border-radius: var(--radius-xl);
}
.article-body { max-width: 760px; margin: 0 auto; font-size: 16px; line-height: 1.8; color: var(--text); }
.article-body > p:first-child { font-size: 18px; }
.article-body p { margin: 0 0 16px; }
.article-body h2,
.article-body h3 { color: var(--ink); font-weight: 800; line-height: 1.4; margin: 32px 0 16px; }
.article-body h2 { font-size: 26px; }
.article-body h3 { font-size: 20px; }
.article-body ul,
.article-body ol { margin: 0 0 16px; padding-left: 24px; }
.article-body li { margin-bottom: 8px; }
.article-body blockquote {
  margin: 24px 0;
  padding: 16px 20px;
  background: var(--bg);
  border-left: 3px solid var(--primary);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  color: var(--text);
}
.article-body img { border-radius: var(--radius-lg); margin: 24px 0; height: auto; }
.article-body a { color: var(--primary); }
.article-body a:hover { text-decoration: underline; }
.article-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 40px;
}
.article-tag {
  display: inline-block;
  padding: 6px 14px;
  background: rgba(27,122,90,0.10);
  color: var(--primary);
  font-size: 12px;
  font-weight: 500;
  border-radius: var(--radius-sm);
}
.related-posts {
  max-width: 1080px;
  margin: 56px auto 0;
  padding-top: 48px;
  border-top: 1px solid var(--border);
}
.related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.related-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  display: block;
}
.related-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-4px); }
.related-card img { width: 100%; aspect-ratio: 16 / 9; object-fit: cover; }
.related-card-body { padding: 24px; }
.related-card-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--ink);
  line-height: 1.4;
  margin: 0 0 8px;
}
.related-card-time { font-size: 13px; color: var(--text-secondary); }
.back-wrap { max-width: 1080px; margin: 40px auto 0; text-align: center; }
.back-link {
  display: inline-block;
  font-size: 15px;
  font-weight: 600;
  color: var(--primary);
  padding: 8px 0;
}
.back-link:hover { color: var(--primary-dark); text-decoration: underline; }
.article-empty {
  max-width: 640px;
  margin: 120px auto;
  text-align: center;
  padding: 48px 24px;
  background: var(--white);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-sm);
}
.article-empty p { font-size: 18px; color: var(--text); margin-bottom: 24px; }
.footer { background: var(--ink); color: rgba(255,255,255,0.85); padding: 64px 0 32px; }
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: 48px;
}
.footer-brand p { font-size: 14px; color: rgba(255,255,255,0.72); margin: 16px 0 0; max-width: 320px; line-height: 1.7; }
.footer-logo { font-size: 22px; font-weight: 800; color: #fff; }
.footer-col h4 {
  font-size: 15px;
  font-weight: 600;
  color: rgba(255,255,255,0.95);
  margin: 0 0 16px;
}
.footer-col a,
.footer-col span { display: block; font-size: 14px; color: rgba(255,255,255,0.72); margin-bottom: 10px; transition: var(--transition); }
.footer-col a:hover { color: var(--gold); }
.footer-subscribe form { display: flex; gap: 8px; }
.footer-subscribe input {
  flex: 1;
  min-width: 0;
  height: 44px;
  padding: 0 14px;
  background: transparent;
  border: 1px solid rgba(255,255,255,0.22);
  border-radius: var(--radius-md);
  color: #fff;
  font-size: 14px;
  transition: var(--transition);
}
.footer-subscribe input::placeholder { color: rgba(255,255,255,0.5); }
.footer-subscribe input:focus { outline: none; border-color: var(--primary); }
.footer-note { font-size: 12px; color: rgba(255,255,255,0.5); margin: 12px 0 0; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.14);
  margin-top: 48px;
  padding-top: 24px;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 8px;
  font-size: 12px;
  color: rgba(255,255,255,0.5);
}
.sticky-cta {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  height: 64px;
  background: var(--white);
  border-top: 1px solid var(--border);
  box-shadow: 0 -4px 12px rgba(17,20,23,0.06);
  transform: translateY(100%);
  transition: transform .3s ease-out;
  z-index: 90;
}
.sticky-cta.visible { transform: translateY(0); }
.sticky-cta-inner {
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.sticky-cta-text {
  font-size: 14px;
  font-weight: 600;
  color: var(--ink);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.sticky-cta .btn { height: 40px; padding: 0 22px; font-size: 14px; flex-shrink: 0; }
@media (max-width: 1199px) {
  .related-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 40px; }
  .article-title { font-size: 38px; }
}
@media (max-width: 768px) {
  .container { padding: 0 16px; }
  .brand-row { height: 56px; }
  .brand-icon { width: 30px; height: 30px; }
  .brand-text { font-size: 18px; }
  .btn { height: 40px; padding: 0 20px; font-size: 14px; }
  .channel-row { gap: 20px; }
  .channel-item { font-size: 14px; line-height: 44px; min-height: 44px; }
  .article-main { padding: 32px 0 72px; }
  .breadcrumb { padding: 10px 12px; font-size: 13px; margin-bottom: 32px; }
  .article-title { font-size: 30px; }
  .article-body { font-size: 16px; }
  .article-body > p:first-child { font-size: 17px; }
  .article-body h2 { font-size: 22px; }
  .article-body h3 { font-size: 18px; }
  .related-grid { grid-template-columns: 1fr; gap: 16px; }
  .related-card-body { padding: 20px; }
  .footer { padding: 48px 0 24px; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; align-items: flex-start; margin-top: 32px; }
  .sticky-cta, .sticky-cta-inner { height: 48px; }
  .sticky-cta-text { max-width: 60%; }
  .sticky-cta .btn { height: 36px; padding: 0 16px; font-size: 13px; }
  body { padding-bottom: 48px; }
}
@media (max-width: 520px) {
  .brand-row { gap: 12px; }
  .article-cover { margin-bottom: 28px; }
  .related-posts { margin-top: 40px; padding-top: 32px; }
  .footer-subscribe form { flex-direction: column; }
  .footer-subscribe input { width: 100%; }
  .footer-subscribe .btn { width: 100%; }
}

/* roulang page: category2 */
:root{
  --primary:#1B7A5A;
  --primary-dark:#145E46;
  --ink:#111417;
  --bg:#F6F8F7;
  --white:#FFFFFF;
  --text:#2B322E;
  --muted:#7A857F;
  --border:#E4E8E6;
  --gold:#C9A96A;
  --radius-sm:4px;
  --radius:6px;
  --radius-lg:8px;
  --radius-xl:12px;
  --shadow-sm:0 1px 3px rgba(17,20,23,0.05);
  --shadow-lg:0 10px 24px rgba(17,20,23,0.10);
  --transition:all .25s ease-out;
  --font-stack:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--font-stack);
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  letter-spacing:0;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:var(--transition)}
button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit}
input{font-family:inherit}
.container{max-width:1280px;margin:0 auto;padding:0 24px}
section{position:relative}

/* 按钮 */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:44px;
  padding:0 24px;
  border-radius:var(--radius);
  font-size:15px;
  font-weight:600;
  line-height:1;
  transition:var(--transition);
  white-space:nowrap;
}
.btn:focus-visible{
  outline:2px solid var(--primary);
  outline-offset:2px;
}
.btn-primary{
  background:var(--primary);
  color:#fff;
}
.btn-primary:hover{
  background:var(--primary-dark);
  transform:translateY(-1px);
  box-shadow:0 8px 20px rgba(27,122,90,0.18);
}
.btn-primary:active{
  background:#0F4A37;
  transform:translateY(0);
  box-shadow:none;
}
.btn-ghost{
  background:transparent;
  border:1px solid rgba(255,255,255,0.75);
  color:#fff;
}
.btn-ghost:hover{
  border-color:var(--gold);
  color:var(--gold);
  transform:translateY(-1px);
}
.btn-lg{height:48px;padding:0 32px;font-size:16px}
.btn-sm{height:38px;padding:0 18px;font-size:14px}
.btn-brand{height:44px;padding:0 22px;font-size:14px}

/* 双行导航 */
.site-header{
  position:relative;
  z-index:100;
}
.brand-bar{
  position:sticky;
  top:0;
  z-index:100;
  background:var(--white);
  border-bottom:1px solid var(--border);
}
.brand-row{
  height:64px;
  display:flex;
  align-items:center;
  justify-content:space-between;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
}
.brand-icon{
  width:40px;
  height:40px;
  flex-shrink:0;
}
.brand-text{
  font-size:22px;
  font-weight:800;
  color:var(--ink);
  letter-spacing:0;
}
.channel-bar{
  background:var(--bg);
  border-bottom:1px solid var(--border);
}
.channel-row{
  display:flex;
  align-items:center;
  gap:28px;
  height:48px;
  overflow-x:auto;
  scrollbar-width:none;
  -webkit-overflow-scrolling:touch;
}
.channel-row::-webkit-scrollbar{display:none}
.channel-link{
  position:relative;
  padding:12px 0;
  font-size:15px;
  font-weight:500;
  color:var(--text);
  flex-shrink:0;
  min-height:40px;
  display:inline-flex;
  align-items:center;
  white-space:nowrap;
  transition:color .25s ease-out;
}
.channel-link::after{
  content:"";
  position:absolute;
  left:0;
  bottom:0;
  width:100%;
  height:2px;
  background:var(--primary);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .25s ease-out;
}
.channel-link:hover{
  color:var(--primary);
}
.channel-link:hover::after{
  transform:scaleX(1);
}
.channel-link.active{
  color:var(--primary);
  font-weight:700;
}
.channel-link.active::after{
  transform:scaleX(1);
}

/* Hero 首屏 */
.hero{
  min-height:560px;
  display:flex;
  align-items:center;
  background:
    linear-gradient(to top,rgba(17,20,23,0.85),rgba(17,20,23,0.35)),
    url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  color:#fff;
  padding:96px 0;
}
.hero-eyebrow{
  display:inline-block;
  font-size:14px;
  font-weight:600;
  letter-spacing:0.08em;
  color:var(--gold);
  margin-bottom:16px;
  text-transform:uppercase;
}
.hero h1{
  font-size:56px;
  line-height:1.2;
  font-weight:900;
  letter-spacing:-0.5px;
  color:#fff;
  max-width:720px;
  animation:fadeUp .6s ease-out .1s both;
}
.hero-sub{
  margin-top:20px;
  font-size:18px;
  line-height:1.6;
  color:rgba(255,255,255,0.85);
  max-width:520px;
  animation:fadeUp .6s ease-out .2s both;
}
.hero-actions{
  margin-top:32px;
  display:flex;
  flex-wrap:wrap;
  gap:16px;
  animation:fadeUp .6s ease-out .32s both;
}
@keyframes fadeUp{
  from{opacity:0;transform:translateY(10px)}
  to{opacity:1;transform:translateY(0)}
}

/* 通用板块 */
.section{
  padding:96px 0;
}
.section-head{
  margin-bottom:48px;
}
.eyebrow{
  display:inline-block;
  font-size:13px;
  font-weight:700;
  letter-spacing:0.1em;
  color:var(--primary);
  margin-bottom:12px;
  text-transform:uppercase;
}
.section-head h2{
  font-size:34px;
  line-height:1.3;
  font-weight:800;
  color:var(--ink);
}
.section-head p{
  margin-top:12px;
  color:var(--muted);
  max-width:560px;
}

/* 分类简介区 */
.about-grid{
  display:grid;
  grid-template-columns:6fr 4fr;
  gap:56px;
  align-items:center;
}
.about-content h2{
  font-size:34px;
  line-height:1.3;
  font-weight:800;
  color:var(--ink);
  margin-bottom:20px;
}
.about-content p{
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  margin-bottom:24px;
}
.text-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:15px;
  font-weight:600;
  color:var(--primary);
}
.text-link:hover{
  color:var(--primary-dark);
  gap:10px;
}
.about-media img{
  width:100%;
  border-radius:var(--radius-xl);
  object-fit:cover;
  aspect-ratio:4/3;
  box-shadow:var(--shadow-lg);
}

/* 子内容区 */
.features{
  background:var(--white);
  border-top:1px solid var(--border);
  border-bottom:1px solid var(--border);
}
.features-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.feature-item{
  padding:32px;
  border:1px solid var(--border);
  border-radius:var(--radius-lg);
  background:var(--white);
  transition:var(--transition);
}
.feature-item:hover{
  transform:translateY(-4px);
  box-shadow:var(--shadow-lg);
  border-color:rgba(27,122,90,0.25);
}
.feature-icon{
  width:52px;
  height:52px;
  border-radius:var(--radius);
  background:rgba(27,122,90,0.1);
  color:var(--primary);
  display:flex;
  align-items:center;
  justify-content:center;
  margin-bottom:20px;
}
.feature-icon svg{
  width:26px;
  height:26px;
}
.feature-item h3{
  font-size:20px;
  font-weight:700;
  color:var(--ink);
  margin-bottom:10px;
}
.feature-item p{
  font-size:15px;
  line-height:1.7;
  color:var(--muted);
}

/* 覆盖项目深色区 */
.scope{
  background:var(--ink);
  padding:96px 0;
}
.scope-card{
  max-width:840px;
  margin:0 auto;
  text-align:center;
}
.scope-card .eyebrow{
  color:var(--gold);
}
.scope-card h2{
  font-size:34px;
  line-height:1.3;
  font-weight:800;
  color:#fff;
  margin-bottom:32px;
}
.tag-list{
  display:flex;
  flex-wrap:wrap;
  justify-content:center;
  gap:12px;
}
.tag{
  display:inline-flex;
  align-items:center;
  min-height:40px;
  padding:0 20px;
  border-radius:var(--radius-sm);
  border:1px solid rgba(255,255,255,0.18);
  background:rgba(255,255,255,0.06);
  color:rgba(255,255,255,0.9);
  font-size:15px;
  font-weight:500;
  transition:var(--transition);
}
.tag:hover{
  border-color:var(--gold);
  color:var(--gold);
  transform:translateY(-1px);
}

/* 使用流程 */
.how{
  background:var(--bg);
}
.how-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
  counter-reset:step;
}
.how-step{
  padding:32px;
  background:var(--white);
  border-radius:var(--radius-lg);
  border:1px solid var(--border);
  transition:var(--transition);
}
.how-step:hover{
  box-shadow:var(--shadow-lg);
  transform:translateY(-4px);
}
.step-num{
  display:block;
  font-size:40px;
  font-weight:900;
  color:var(--gold);
  line-height:1;
  margin-bottom:16px;
  letter-spacing:0.02em;
}
.how-step h3{
  font-size:19px;
  font-weight:700;
  color:var(--ink);
  margin-bottom:8px;
}
.how-step p{
  font-size:15px;
  line-height:1.7;
  color:var(--muted);
}

/* FAQ */
.faq{
  background:var(--white);
  border-top:1px solid var(--border);
  border-bottom:1px solid var(--border);
}
.faq-list{
  max-width:780px;
  margin:0 auto;
}
.faq-item{
  border-bottom:1px solid var(--border);
}
.faq-item:last-child{
  border-bottom:none;
}
.faq-question{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  width:100%;
  padding:24px 0;
  text-align:left;
  font-size:16px;
  font-weight:600;
  color:var(--ink);
  transition:color .2s ease-out;
}
.faq-question:hover{
  color:var(--primary);
}
.faq-icon{
  position:relative;
  width:20px;
  height:20px;
  flex-shrink:0;
}
.faq-icon::before,
.faq-icon::after{
  content:"";
  position:absolute;
  background:var(--primary);
  border-radius:2px;
  transition:transform .25s ease-out;
}
.faq-icon::before{
  left:0;
  top:9px;
  width:20px;
  height:2px;
}
.faq-icon::after{
  left:9px;
  top:0;
  width:2px;
  height:20px;
}
.faq-item.active .faq-icon::after{
  transform:scaleY(0);
}
.faq-answer{
  max-height:0;
  overflow:hidden;
  transition:max-height .3s ease-out;
}
.faq-item.active .faq-answer{
  max-height:220px;
}
.faq-answer p{
  padding:0 0 24px;
  font-size:14px;
  line-height:1.7;
  color:var(--muted);
}

/* 相关分类互链 */
.cross{
  background:var(--bg);
}
.cross-card{
  display:flex;
  align-items:center;
  gap:24px;
  max-width:720px;
  margin:0 auto;
  background:var(--white);
  border:1px solid var(--border);
  border-radius:var(--radius-lg);
  padding:24px;
  transition:var(--transition);
}
.cross-card:hover{
  box-shadow:var(--shadow-lg);
  transform:translateY(-4px);
  border-color:rgba(27,122,90,0.25);
}
.cross-card img{
  width:80px;
  height:80px;
  border-radius:var(--radius-lg);
  object-fit:cover;
  flex-shrink:0;
}
.cross-info{
  flex:1;
  min-width:0;
}
.cross-info .eyebrow{
  margin-bottom:6px;
  font-size:12px;
}
.cross-info h3{
  font-size:18px;
  font-weight:700;
  color:var(--ink);
  margin-bottom:4px;
}
.cross-info p{
  font-size:13px;
  color:var(--muted);
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
}
.cross-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:10px 18px;
  border-radius:var(--radius);
  font-size:14px;
  font-weight:600;
  color:var(--primary);
  border:1px solid rgba(27,122,90,0.3);
  flex-shrink:0;
  transition:var(--transition);
}
.cross-link:hover{
  background:var(--primary);
  color:#fff;
  border-color:var(--primary);
}

/* CTA */
.cta{
  padding:80px 0 120px;
}
.cta-box{
  position:relative;
  overflow:hidden;
  border-radius:var(--radius-xl);
  background:
    linear-gradient(to top,rgba(17,20,23,0.82),rgba(17,20,23,0.55)),
    url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  padding:72px 56px;
  text-align:center;
  color:#fff;
}
.cta-box h2{
  font-size:36px;
  line-height:1.3;
  font-weight:800;
  color:#fff;
  margin-bottom:12px;
}
.cta-box p{
  font-size:16px;
  color:rgba(255,255,255,0.75);
  margin-bottom:32px;
}

/* 页脚 */
.footer{
  background:var(--ink);
  color:rgba(255,255,255,0.85);
  padding:64px 0 96px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1.4fr;
  gap:48px;
  margin-bottom:48px;
}
.footer-logo{
  display:block;
  font-size:22px;
  font-weight:800;
  color:#fff;
  margin-bottom:12px;
}
.footer-brand p{
  font-size:14px;
  line-height:1.7;
  color:rgba(255,255,255,0.72);
  max-width:280px;
}
.footer-col h4{
  font-size:15px;
  font-weight:700;
  color:#fff;
  margin-bottom:20px;
}
.footer-col a,
.footer-col span{
  display:block;
  font-size:14px;
  color:rgba(255,255,255,0.72);
  margin-bottom:10px;
  transition:color .2s ease-out;
}
.footer-col a:hover{
  color:var(--gold);
}
.footer-subscribe form{
  display:flex;
  gap:10px;
  margin-top:4px;
}
.footer-subscribe input{
  flex:1;
  min-width:0;
  height:42px;
  padding:0 14px;
  border-radius:var(--radius);
  border:1px solid rgba(255,255,255,0.2);
  background:rgba(255,255,255,0.08);
  color:#fff;
  font-size:14px;
  transition:var(--transition);
}
.footer-subscribe input::placeholder{
  color:rgba(255,255,255,0.45);
}
.footer-subscribe input:focus{
  outline:none;
  border-color:var(--primary);
  background:rgba(255,255,255,0.12);
}
.footer-subscribe .btn{
  height:42px;
  padding:0 18px;
  font-size:14px;
}
.footer-note{
  font-size:12px;
  color:rgba(255,255,255,0.45);
  margin-top:12px;
}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,0.14);
  padding-top:24px;
  display:flex;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  font-size:12px;
  color:rgba(255,255,255,0.5);
}

/* 底部固定转化条 */
.convert-bar{
  position:fixed;
  bottom:0;
  left:0;
  right:0;
  z-index:999;
  height:64px;
  background:var(--white);
  border-top:1px solid var(--border);
  box-shadow:0 -4px 12px rgba(17,20,23,0.06);
  transform:translateY(100%);
  transition:transform .3s ease-out;
}
.convert-bar.visible{
  transform:translateY(0);
}
.convert-inner{
  max-width:1280px;
  margin:0 auto;
  padding:0 24px;
  height:64px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
}
.convert-text{
  font-size:14px;
  font-weight:600;
  color:var(--ink);
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
}

/* 响应式 */
@media(max-width:1199px){
  .section{padding:80px 0}
  .about-grid{gap:40px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:40px}
}

@media(max-width:767px){
  .container{padding:0 16px}
  .section{padding:64px 0}
  .brand-row{height:60px}
  .brand-icon{width:36px;height:36px}
  .brand-text{font-size:19px}
  .channel-row{gap:20px;height:auto}
  .channel-link{padding:10px 0;min-height:44px;font-size:15px}
  .hero{padding:72px 0;min-height:500px}
  .hero h1{font-size:34px}
  .hero-sub{font-size:16px}
  .hero-actions{width:100%;flex-direction:column}
  .hero-actions .btn{width:100%}
  .section-head h2{font-size:26px}
  .about-grid{grid-template-columns:1fr;gap:32px}
  .about-content h2{font-size:26px}
  .features-grid{grid-template-columns:1fr;gap:16px}
  .feature-item{padding:24px}
  .scope{padding:64px 0}
  .scope-card h2{font-size:26px}
  .tag-list{gap:10px}
  .tag{padding:0 16px;font-size:14px}
  .how-grid{grid-template-columns:1fr;gap:16px}
  .how-step{padding:24px}
  .faq-question{font-size:15px;padding:20px 0}
  .cross-card{flex-wrap:wrap;padding:20px}
  .cross-card img{width:64px;height:64px}
  .cross-info{flex:1 1 60%}
  .cross-info p{white-space:normal}
  .cross-link{margin-top:8px}
  .cta{padding:64px 0 96px}
  .cta-box{padding:48px 24px}
  .cta-box h2{font-size:28px}
  .footer{padding:56px 0 80px}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .footer-subscribe form{flex-direction:column}
  .footer-bottom{flex-direction:column;gap:8px}
  .convert-bar{height:48px}
  .convert-inner{height:48px;padding:0 16px}
  .convert-text{max-width:200px;font-size:13px}
  .convert-bar .btn{height:34px;padding:0 14px;font-size:13px}
}