/* roulang page: index */
:root {
  --pine: #0F3228;
  --moss: #1F4D3D;
  --paper: #F7F3EA;
  --paper-deep: #EFE8DA;
  --white: #FFFFFF;
  --ink: #161813;
  --muted: #5A5F58;
  --line: #E4DED2;
  --coral: #F25C3A;
  --amber: #C88A2D;
  --error: #C94131;
  --success: #1F7A5A;
  --on-dark: #C8D1C9;
  --radius-lg: 16px;
  --radius-md: 12px;
  --shadow-soft: 0 12px 32px rgba(22,24,19,.08);
  --shadow-coral: 0 8px 20px rgba(242,92,58,.25);
}
*,
*::before,
*::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: "PingFang SC", "HarmonyOS Sans SC", "MiSans", "Noto Sans CJK SC", system-ui, -apple-system, sans-serif;
  line-height: 1.85;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}
body, h1, h2, h3, h4, p, ul, ol, figure { margin: 0; padding: 0; }
ul { list-style: none; }
a {
  color: inherit;
  text-decoration: none;
}
img { display: block; max-width: 100%; }
button { font: inherit; cursor: pointer; border: none; background: none; color: inherit; }
input, select, textarea {
  font: inherit;
  border: 1px solid var(--line);
  background: #fff;
  border-radius: 10px;
  padding: .75rem 1rem;
  outline: none;
  width: 100%;
  transition: border-color .2s, box-shadow .2s;
  color: var(--ink);
}
input:focus, textarea:focus, select:focus {
  border-color: var(--moss);
  box-shadow: 0 0 0 3px rgba(31,77,61,.15);
}
::placeholder { color: #9A9F97; }
h1, h2, h3, h4 { font-weight: 700; line-height: 1.3; }
.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding-left: 32px;
  padding-right: 32px;
}
.section { padding: 96px 0; }
.page-section { padding: 96px 0; }
.sec-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 48px;
  flex-wrap: wrap;
}
.sec-head h2 {
  font-size: clamp(1.9rem, 3.4vw, 2.6rem);
  letter-spacing: .02em;
  color: var(--pine);
  position: relative;
  padding-left: 18px;
}
.sec-head h2::before {
  content: "";
  position: absolute;
  left: 0;
  top: .35em;
  bottom: .35em;
  width: 5px;
  border-radius: 999px;
  background: var(--coral);
}
.sec-note {
  color: var(--muted);
  max-width: 540px;
  font-size: 1rem;
  line-height: 1.8;
}
.sec-index {
  display: inline-block;
  font-size: .84rem;
  font-weight: 400;
  letter-spacing: .2em;
  color: var(--amber);
}
/* -------------------- 按钮 -------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .5rem;
  height: 46px;
  padding: 0 24px;
  border-radius: 999px;
  font-weight: 600;
  font-size: .95rem;
  line-height: 1;
  transition: transform .2s ease, box-shadow .2s ease, background .2s ease, border-color .2s ease;
  border: 1px solid transparent;
  white-space: nowrap;
}
.btn:active { transform: scale(.98) translateY(1px); }
.btn:focus-visible {
  outline: 2px solid var(--pine);
  outline-offset: 3px;
}
.btn-primary {
  background: var(--coral);
  color: #fff;
}
.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-coral);
}
.btn-dark {
  background: var(--pine);
  color: #fff;
}
.btn-dark:hover {
  transform: translateY(-1px);
  box-shadow: 0 8px 20px rgba(15,50,40,.22);
}
.btn-outline {
  border-color: rgba(255,255,255,.7);
  color: #fff;
}
.btn-outline:hover {
  background: rgba(255,255,255,.08);
  border-color: #fff;
}
.btn-ghost {
  border-color: var(--moss);
  color: var(--moss);
}
.btn-ghost:hover {
  background: rgba(31,77,61,.07);
  transform: translateY(-1px);
}
.btn-text {
  color: var(--moss);
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: .35rem;
  transition: color .2s;
}
.btn-text:hover { color: var(--coral); }
.btn-sm { height: 38px; padding: 0 18px; font-size: .88rem; }
/* -------------------- 导航 -------------------- */
.site-header {
  position: fixed; inset: 0 0 auto;
  z-index: 60;
  transition: background .3s, box-shadow .3s;
  background: rgba(247,243,234,.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(228,222,210,.9);
}
.site-header.scrolled { background: rgba(247,243,234,.97); box-shadow: 0 6px 24px rgba(22,24,19,.05); }
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
  gap: 22px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex: 0 0 auto;
}
.brand-mark {
  width: 38px; height: 38px;
  border-radius: 10px;
  background: var(--pine);
  color: #fff;
  display: grid;
  place-items: center;
  font-weight: 800;
  font-size: .82rem;
  letter-spacing: .01em;
  box-shadow: 0 6px 12px rgba(15,50,40,.14);
}
.brand-text {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--pine);
  letter-spacing: .03em;
}
.main-nav { display: flex; align-items: center; gap: 4px; }
.main-nav a {
  display: inline-flex;
  align-items: center;
  height: 38px;
  padding: 0 16px;
  border-radius: 999px;
  font-size: .95rem;
  color: var(--muted);
  font-weight: 500;
  transition: color .2s, background .2s;
}
.main-nav a:hover { color: var(--pine); background: rgba(31,77,61,.06); }
.main-nav a.active {
  color: var(--pine);
  font-weight: 700;
  position: relative;
}
.main-nav a.active::after {
  content: "";
  position: absolute;
  left: 50%; transform: translateX(-50%);
  bottom: 4px; width: 20px; height: 2px;
  background: var(--coral);
  border-radius: 2px;
}
.header-actions {
  display: flex; align-items: center; gap: 10px;
  flex: 0 0 auto;
}
.cmd-search {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  width: 220px;
  height: 38px;
  border: 1px solid var(--line);
  background: rgba(255,255,255,.8);
  border-radius: 999px;
  padding: 0 14px;
  color: #9A9F97;
  font-size: .88rem;
  transition: border-color .2s, box-shadow .2s;
}
.cmd-search:hover { border-color: var(--moss); box-shadow: 0 4px 12px rgba(31,77,61,.1); }
.cmd-search kbd {
  margin-left: auto;
  border: 1px solid var(--line);
  background: var(--paper);
  border-bottom-width: 2px;
  border-radius: 5px;
  color: var(--muted);
  font-size: .75rem;
  padding: 0 7px;
}
.header-btn { height: 38px; padding: 0 18px; font-size: .9rem; }
.mobile-toggle {
  display: none;
  width: 42px; height: 42px;
  border: 1px solid var(--line);
  border-radius: 10px;
  align-items: center;
  justify-content: center;
  color: var(--pine);
}
.mobile-nav {
  display: none;
  border-top: 1px solid var(--line);
  background: var(--paper);
  padding: 18px 20px 24px;
}
.mobile-nav a {
  display: block;
  padding: 12px 8px;
  border-bottom: 1px solid rgba(228,222,210,.7);
  font-weight: 600;
  color: var(--muted);
}
.mobile-nav a.active { color: var(--coral); }
/* -------------------- Hero -------------------- */
.hero {
  position: relative;
  background-color: var(--pine);
  background-image: linear-gradient(70deg, rgba(15,50,40,.86) 0%, rgba(15,50,40,.72) 60%, rgba(31,77,61,.4) 100%), url("/assets/images/backpic/back-1.webp");
  background-position: center;
  background-size: cover;
  color: #fff;
  padding-top: 180px;
  padding-bottom: 110px;
}
.hero::after {
  content: "";
  position: absolute;
  right: 0; bottom: 0;
  width: 46%; height: 120px;
  background: linear-gradient(105deg, transparent, rgba(247,243,234,0));
  pointer-events: none;
}
.hero-inner {
  display: grid;
  grid-template-columns: 1.08fr .92fr;
  gap: 50px;
  align-items: center;
}
.hero-copy { max-width: 760px; }
.hero-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  background: rgba(255,255,255,.12);
  border: 1px solid rgba(255,255,255,.2);
  border-radius: 999px;
  color: #fff;
  font-size: .88rem;
  font-weight: 500;
  margin-bottom: 24px;
}
.hero-title {
  display: block;
  font-size: clamp(2.5rem, 5.4vw, 4.5rem);
  line-height: 1.14;
  letter-spacing: -0.02em;
  font-weight: 800;
  margin-bottom: 24px;
}
.hero-title .brand-hl { color: #fff; }
.hero-sub {
  color: #D5DED6;
  font-size: 1.06rem;
  line-height: 2;
  max-width: 680px;
  margin-bottom: 32px;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; }
.hero-meta-line { margin-top: 32px; color: var(--on-dark); font-size: .92rem; display: flex; gap: 20px; flex-wrap: wrap; }
.hero-meta-line span { display: inline-flex; align-items: center; gap: 6px; }
/* 倒计时 */
.countdown-card {
  background: rgba(255,255,255,.08);
  border: 1px solid rgba(255,255,255,.18);
  backdrop-filter: blur(8px);
  border-radius: 20px;
  padding: 28px 26px;
  max-width: 420px;
  margin-left: auto;
}
.countdown-card .cd-label {
  font-size: .92rem;
  color: var(--on-dark);
  margin-bottom: 16px;
}
.countdown-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
}
.countdown-grid .cd-cell {
  background: rgba(15,50,40,.7);
  border-radius: 12px;
  padding: 14px 4px;
  text-align: center;
}
.countdown-grid b {
  display: block;
  font-size: 2rem;
  font-variant-numeric: tabular-nums;
  letter-spacing: .02em;
}
.countdown-grid small { color: var(--on-dark); font-size: .78rem; }
.cd-date {
  margin-top: 14px;
  color: #fff;
  font-size: .9rem;
  text-align: center;
  opacity: .9;
}
/* -------------------- 数据条 -------------------- */
.metric-section {
  border-bottom: 1px solid var(--line);
  background: #fff;
}
.metric-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
}
.metric-item {
  padding: 44px 16px;
  text-align: center;
  position: relative;
}
.metric-item + .metric-item::before {
  content: "";
  position: absolute;
  left: 0; top: 40px; bottom: 40px;
  width: 1px;
  background: var(--line);
}
.metric-item b {
  display: block;
  font-size: clamp(2.8rem, 4vw, 4rem);
  line-height: 1.1;
  font-weight: 800;
  color: var(--pine);
  font-variant-numeric: tabular-nums;
}
.metric-item span {
  display: block;
  margin-top: 6px;
  color: var(--muted);
  font-size: .95rem;
}
/* -------------------- 议程时间线 -------------------- */
.agenda-section {
  background: var(--paper);
}
.agenda-list {
  max-width: 900px;
}
.agenda-row {
  display: grid;
  grid-template-columns: 190px 1fr;
  gap: 22px;
  padding: 30px 0;
  border-bottom: 1px solid var(--line);
  transition: background .3s;
}
.agenda-row:hover { background: rgba(255,255,255,.6); }
.agenda-row:hover time b { color: var(--coral); }
.agenda-time {
  text-align: right;
  color: var(--muted);
  font-variant-numeric: tabular-nums;
  font-weight: 600;
  padding-top: 4px;
}
.agenda-time b {
  display: block;
  color: var(--pine);
  font-size: 1.1rem;
  transition: color .2s;
}
.agenda-content { padding-right: 10px; }
.agenda-content h3 { font-size: 1.2rem; color: var(--ink); margin-bottom: 6px; }
.agenda-content p { color: var(--muted); font-size: .96rem; }
.agenda-speaker { margin-top: 8px; color: var(--moss); font-size: .88rem; }
.agenda-foot { margin-top: 36px; text-align: right; }
/* -------------------- 亮点 / 看点 -------------------- */
.highlight-grid {
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  gap: 48px;
  align-items: center;
}
.highlight-media {
  position: relative;
  border-radius: 22px;
  overflow: hidden;
  min-height: 420px;
  background: var(--paper-deep);
  box-shadow: var(--shadow-soft);
}
.highlight-media img {
  width: 100%; height: 100%;
  object-fit: cover;
  position: absolute; inset: 0;
}
.highlight-media .hl-badge {
  position: absolute;
  left: 18px; bottom: 18px;
  background: rgba(15,50,40,.8);
  color: #fff;
  border-radius: 999px;
  padding: 6px 16px;
  font-size: .86rem;
  backdrop-filter: blur(4px);
  display: inline-flex;
  gap: 6px;
}
.highlight-items {
  display: flex;
  flex-direction: column;
}
.hl-item {
  display: grid;
  grid-template-columns: 64px 1fr;
  gap: 18px;
  padding: 28px 0;
  border-bottom: 1px solid var(--line);
  transition: padding-left .3s;
}
.hl-item:last-child { border-bottom: none; }
.hl-item:hover { padding-left: 8px; }
.hl-item .hl-num {
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--paper-deep);
  line-height: 1;
  font-variant-numeric: tabular-nums;
  -webkit-text-stroke: 1px var(--moss);
}
.hl-item h3 { font-size: 1.12rem; color: var(--pine); margin-bottom: 6px; }
.hl-item p { color: var(--muted); font-size: .95rem; line-height: 1.8; }
/* -------------------- 票种 -------------------- */
.ticket-section { background: var(--paper); }
.ticket-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  align-items: stretch;
}
.ticket-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 36px 30px;
  display: flex;
  flex-direction: column;
  position: relative;
  transition: transform .3s, box-shadow .3s;
}
.ticket-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-soft);
}
.ticket-card.featured {
  border: 2px solid var(--pine);
  box-shadow: 0 16px 36px rgba(15,50,40,.13);
}
.ticket-featured-badge {
  position: absolute;
  top: -15px; left: 50%;
  transform: translateX(-50%);
  background: var(--coral);
  color: #fff;
  border-radius: 999px;
  padding: 4px 18px;
  font-size: .82rem;
  font-weight: 700;
  letter-spacing: .1em;
  white-space: nowrap;
}
.ticket-name { font-size: 1.28rem; font-weight: 700; color: var(--pine); }
.ticket-desc { color: var(--muted); font-size: .9rem; margin: 6px 0 20px; }
.ticket-price {
  font-size: .98rem;
  color: var(--muted);
  display: flex;
  align-items: baseline;
  gap: 6px;
  margin-bottom: 26px;
}
.ticket-price b {
  font-size: 2.8rem;
  color: var(--ink);
  letter-spacing: -0.02em;
  font-variant-numeric: tabular-nums;
}
.ticket-benefits { border-top: 1px dashed var(--line); padding-top: 20px; margin-bottom: 30px; flex: 1; }
.ticket-benefits li { position: relative; padding: 6px 0 6px 24px; color: var(--muted); font-size: .95rem; }
.ticket-benefits li::before {
  content: "";
  position: absolute;
  width: 6px; height: 6px;
  left: 4px; top: 14px;
  border-radius: 50%;
  background: var(--moss);
}
.featured .ticket-benefits li::before { background: var(--coral); }
.ticket-card .btn { margin-top: 6px; }
.ticket-note { margin-top: 28px; color: #8C9188; font-size: .84rem; text-align: center; }
/* -------------------- 报名表单 -------------------- */
.register-section {
  background-color: var(--pine);
  background-image: linear-gradient(115deg, rgba(15,50,40,.95) 40%, rgba(31,77,61,.86) 100%), url("/assets/images/backpic/back-3.webp");
  background-size: cover;
  background-position: center;
  color: #fff;
}
.register-wrap {
  display: grid;
  grid-template-columns: .85fr 1.15fr;
  gap: 50px;
  align-items: start;
}
.register-intro h2 {
  font-size: clamp(2rem, 4vw, 2.8rem);
  color: #fff;
  margin-bottom: 20px;
  max-width: 480px;
}
.register-intro p { color: #D4DDD4; max-width: 470px; margin-bottom: 34px; }
.register-contacts { display: flex; flex-direction: column; gap: 16px; }
.reg-contact {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: .98rem;
  color: #fff;
}
.reg-contact svg { color: var(--coral); }
.register-card {
  background: #fff;
  border-radius: 22px;
  padding: 36px;
  color: var(--ink);
  box-shadow: 0 20px 48px rgba(0,0,0,.2);
}
.reg-form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}
.reg-form-grid .field-full { grid-column: 1 / -1; }
.field-label {
  display: block;
  font-size: .9rem;
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--ink);
}
.field-label span { color: var(--coral); }
.field-tip { font-size: .8rem; color: #9A9F97; }
.form-action { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; margin-top: 22px; }
.form-submit {
  min-width: 186px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 50px;
  border-radius: 999px;
  background: var(--coral);
  color: #fff;
  font-weight: 700;
  font-size: 1rem;
  gap: 8px;
  padding: 0 28px;
  transition: box-shadow .2s, transform .2s;
}
.form-submit:hover { box-shadow: var(--shadow-coral); transform: translateY(-1px); }
.form-submit:disabled { opacity: .8; cursor: not-allowed; }
.privacy-note {
  margin-top: 16px;
  color: #9A9F97;
  font-size: .82rem;
}
/* -------------------- 最新动态 -------------------- */
.latest-grid {
  display: grid;
  grid-template-columns: calc(50% - 12px) calc(50% - 12px);
  gap: 24px;
}
.latest-main-card {
  background: var(--pine);
  border-radius: 20px;
  overflow: hidden;
  min-height: 100%;
  display: flex;
  color: #fff;
  position: relative;
}
.latest-main-card .cover {
  width: 46%;
  overflow: hidden;
  flex: 0 0 auto;
}
.latest-main-card .cover img { width: 100%; height: 100%; object-fit: cover; }
.latest-main-card .content { padding: 32px; display: flex; flex-direction: column; }
.latest-main-card .tag, .news-mini-card .tag {
  display: inline-block;
  padding: 3px 12px;
  background: var(--amber);
  color: #fff;
  border-radius: 999px;
  font-size: .78rem;
  margin-bottom: 14px;
  align-self: flex-start;
}
.latest-main-card h3 {
  font-size: 1.6rem;
  line-height: 1.35;
  margin-bottom: 12px;
  font-weight: 700;
  color: #fff;
}
.latest-main-card p {
  color: #C8D1C9;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 20px;
  flex: 1;
}
.item-time {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  color: #C8D1C9;
  font-size: .8rem;
  font-variant-numeric: tabular-nums;
}
.mini-list { display: flex; flex-direction: column; gap: 14px; }
.news-mini-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 18px 20px;
  transition: border-color .2s, transform .2s, box-shadow .2s;
  display: block;
}
.news-mini-card:hover { border-color: var(--pine); transform: translateY(-2px); box-shadow: var(--shadow-soft); }
.news-mini-card .tag { background: #F1E8D4; color: var(--moss); margin-bottom: 8px; }
.news-mini-card h3 { font-size: 1.05rem; margin-bottom: 6px; }
.news-mini-card p { color: var(--muted); font-size: .9rem; overflow: hidden; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; }
.news-mini-card .item-time { color: var(--muted); margin-top: 8px; }
.latest-empty {
  grid-column: 1 / -1;
  text-align: center;
  padding: 64px 24px;
  border: 1px dashed var(--line);
  border-radius: 20px;
  color: var(--muted);
  background: rgba(255,255,255,.7);
}
/* -------------------- FAQ -------------------- */
.faq-section { background: #fff; }
.faq-panel {
  max-width: 820px;
  margin: 0 auto;
}
.faq-item { border-bottom: 1px solid var(--line); }
.faq-item:first-child { border-top: 1px solid var(--line); }
.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  width: 100%;
  text-align: left;
  padding: 24px 4px;
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--ink);
  transition: color .2s;
  background: transparent;
}
.faq-question:hover { color: var(--moss); }
.faq-icon {
  width: 32px; height: 32px;
  flex: 0 0 auto;
  display: grid;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 50%;
  transition: transform .3s;
  font-size: 1.1rem;
  color: var(--coral);
}
.faq-item.open .faq-icon { transform: rotate(45deg); }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height .3s ease; }
.faq-answer .inner { padding: 0 38px 24px 4px; color: var(--muted); line-height: 1.95; }
/* -------------------- 底部 CTA -------------------- */
.prefooter-cta {
  background: var(--pine);
  background-image: linear-gradient(90deg, #0F3228 0%, #1F4D3D 100%);
  padding: 72px 0;
  color: #fff;
}
.cta-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
}
.cta-inner h2 { font-size: clamp(1.8rem, 3.5vw, 2.8rem); max-width: 680px; }
.cta-inner p { color: var(--on-dark); margin-top: 12px; }
.cta-inner .btn { height: 52px; padding: 0 32px; }
/* -------------------- 页脚 -------------------- */
.site-footer { background: #F0EBDF; border-top: 1px solid var(--line); }
.footer-main {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 36px;
  padding-top: 64px;
  padding-bottom: 46px;
}
.footer-brand-text { font-size: 1.28rem; font-weight: 800; color: var(--pine); margin-bottom: 12px; }
.footer-about { color: var(--muted); font-size: .94rem; max-width: 320px; }
.footer-title { font-size: .86rem; font-weight: 700; color: var(--pine); letter-spacing: .1em; margin-bottom: 18px; }
.footer-title::after { content: ""; display: block; width: 22px; height: 2px; background: var(--coral); border-radius: 2px; margin-top: 8px; }
.footer-links li { margin-bottom: 10px; }
.footer-links a {
  color: var(--muted);
  font-size: .92rem;
  transition: color .2s;
}
.footer-links a:hover { color: var(--pine); text-decoration: underline; text-underline-offset: 4px; }
.footer-bottom {
  border-top: 1px solid var(--line);
  padding: 18px 0;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 8px;
  font-size: .84rem;
  color: #8C9188;
}
/* -------------------- 响应式 -------------------- */
@media (max-width: 1024px) {
  .page-section { padding: 80px 0; }
  .main-nav { display: none; }
  .cmd-search { display: none; }
  .mobile-toggle { display: inline-flex; }
  .desktop-login { display: none; }
  .container { padding-left: 24px; padding-right: 24px; }
  .hero-inner { grid-template-columns: 1fr; }
  .countdown-card { margin: 0 auto; width: 100%; max-width: none; }
  .highlight-grid, .register-wrap { grid-template-columns: 1fr; }
  .register-card { margin-top: 12px; }
}
@media (max-width: 768px) {
  body { font-size: 15px; }
  .section, .page-section { padding: 64px 0; }
  .container { padding-left: 20px; padding-right: 20px; }
  .header-inner { height: 66px; }
  .brand-text { font-size: 1.1rem; }
  .header-btn { padding: 0 16px; }
  .metric-grid { grid-template-columns: repeat(2, 1fr); }
  .metric-item + .metric-item::before { display: none; }
  .metric-item { padding: 28px 12px; }
  .agenda-row { grid-template-columns: 1fr; gap: 8px; }
  .agenda-time { text-align: left; }
  .highlight-media { min-height: 320px; }
  .ticket-grid { grid-template-columns: 1fr; max-width: 520px; margin: 0 auto; }
  .ticket-card.featured { order: -1; }
  .reg-form-grid { grid-template-columns: 1fr; }
  .latest-grid { grid-template-columns: 1fr; }
  .latest-main-card { flex-direction: column; }
  .latest-main-card .cover { width: 100%; height: 150px; }
  .footer-main { grid-template-columns: 1fr 1fr; }
  .hero { padding-top: 140px; padding-bottom: 76px; }
}
@media (max-width: 520px) {
  .sec-head { align-items: flex-start; flex-direction: column; }
  .footer-main { grid-template-columns: 1fr; }
  .hero-actions .btn { width: 100%; }
  .hero-title { font-size: 2.4rem; }
  .form-action { flex-direction: column; }
  .form-submit { width: 100%; }
  .cta-inner .btn { width: 100%; align-items: center; justify-content: center; }
  .ticket-card { padding: 30px 22px; }
  .register-card { padding: 24px 18px; }
  .hl-item { grid-template-columns: 46px 1fr; }
}

/* roulang page: article */
:root {
  --pine: #0F3228;
  --moss: #1F4D3D;
  --paper: #F7F3EA;
  --surface: #FFFFFF;
  --ink: #161813;
  --warmgray: #5A5F58;
  --hairline: #E4DED2;
  --coral: #F25C3A;
  --amber2: #C88A2D;
  --success: #1F7A5A;
  --danger: #C94131;
  --deep-soft: #C8D1C9;
  --radius-lg: 20px;
  --radius-md: 14px;
  --radius-sm: 10px;
  --shadow-soft: 0 20px 50px rgba(22, 24, 19, 0.06);
  --shadow-card: 0 6px 18px rgba(15, 50, 40, 0.07);
  --container: 1280px;
  --trans: 0.2s cubic-bezier(0.2, 0.6, 0.2, 1);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 96px;
  -webkit-font-smoothing: antialiased;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "HarmonyOS Sans SC", "MiSans", "Noto Sans CJK SC", sans-serif;
  font-size: 16px;
  line-height: 1.85;
  color: var(--ink);
  background-color: var(--paper);
  font-variant-numeric: tabular-nums;
}

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

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

button {
  font-family: inherit;
  cursor: pointer;
}

.container {
  width: 100%;
  max-width: var(--container);
  margin-left: auto;
  margin-right: auto;
  padding-left: 20px;
  padding-right: 20px;
}

@media (min-width: 768px) {
  .container {
    padding-left: 32px;
    padding-right: 32px;
  }
}

/* 首页一致的站点头部 */
.site-header {
  position: sticky;
  top: 0;
  z-index: 80;
  background: rgba(247, 243, 234, 0.92);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid rgba(228, 222, 210, 0.9);
}

.site-header.scrolled {
  box-shadow: 0 8px 24px rgba(22, 24, 19, 0.05);
}

.header-inner {
  display: flex;
  align-items: center;
  height: 70px;
  gap: 28px;
}

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

.brand-mark {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 10px;
  background: var(--pine);
  color: #ffffff;
  font-size: 14px;
  font-weight: 800;
  letter-spacing: 0.5px;
  box-shadow: 0 3px 10px rgba(15, 50, 40, 0.16);
}

.brand-text {
  font-size: 18px;
  font-weight: 700;
  letter-spacing: -0.2px;
  color: var(--pine);
  white-space: nowrap;
}

.main-nav {
  display: none;
  align-items: center;
  gap: 28px;
  flex: 1;
  justify-content: center;
}

.main-nav a {
  position: relative;
  font-size: 15px;
  font-weight: 500;
  color: #4d534e;
  padding: 8px 2px;
  transition: color var(--trans);
}

.main-nav a:hover,
.main-nav a:focus-visible {
  color: var(--pine);
  outline: none;
}

.main-nav a.active {
  color: var(--pine);
  font-weight: 700;
}

.main-nav a.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 20px;
  height: 2px;
  background: var(--coral);
  border-radius: 2px;
}

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

.cmd-search {
  display: none;
  align-items: center;
  gap: 8px;
  height: 38px;
  padding: 0 10px 0 13px;
  border-radius: 999px;
  border: 1px solid #ded6c7;
  background: rgba(255, 255, 255, 0.76);
  color: #8a8378;
  font-size: 13px;
  min-width: 188px;
  transition: border-color var(--trans), box-shadow var(--trans), background var(--trans);
}

.cmd-search:hover {
  border-color: var(--pine);
  background: #ffffff;
}

.cmd-search:focus-within {
  outline: 2px solid rgba(15, 50, 40, 0.4);
  outline-offset: 2px;
}

.cmd-search kbd {
  font-family: inherit;
  font-size: 11px;
  line-height: 1;
  color: #9a9388;
  border: 1px solid #e4ded2;
  border-radius: 5px;
  padding: 3px 6px;
  margin-left: auto;
  background: #fffdf8;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 600;
  line-height: 1;
  padding: 12px 22px;
  border: 1px solid transparent;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
  white-space: nowrap;
  user-select: none;
}

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

.btn-primary {
  background: var(--coral);
  color: #ffffff;
  box-shadow: 0 3px 10px rgba(242, 92, 58, 0.22);
}

.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 10px 30px rgba(242, 92, 58, 0.28);
}

.btn-primary:active {
  transform: translateY(0) scale(0.98);
  box-shadow: 0 4px 12px rgba(242, 92, 58, 0.2);
}

.btn-outline-dark {
  border-color: rgba(255, 255, 255, 0.72);
  color: #ffffff;
  background: transparent;
}

.btn-outline-dark:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: #ffffff;
}

.btn-text {
  background: transparent;
  color: var(--pine);
  font-weight: 600;
  padding-left: 14px;
  padding-right: 14px;
}

.btn-text:hover {
  background: rgba(15, 50, 40, 0.08);
}

.header-btn {
  height: 38px;
  padding: 0 18px;
  font-size: 14px;
}

.mobile-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 10px;
  border: 1px solid var(--hairline);
  background: #ffffff;
  color: var(--pine);
}

.mobile-toggle:focus-visible {
  outline: 2px solid var(--pine);
  outline-offset: 3px;
}

.mobile-nav {
  display: none;
  flex-direction: column;
  background: rgba(247, 243, 234, 0.98);
  border-bottom: 1px solid var(--hairline);
  padding: 12px 20px 20px;
}

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

.mobile-nav a {
  display: block;
  padding: 13px 4px;
  font-size: 16px;
  font-weight: 500;
  color: #474e49;
  border-bottom: 1px solid rgba(228, 222, 210, 0.6);
}

.mobile-nav a.active {
  color: var(--pine);
  font-weight: 700;
}

@media (min-width: 1024px) {
  .cmd-search {
    display: inline-flex;
  }
  .main-nav {
    display: flex;
  }
  .mobile-toggle {
    display: none;
  }
  .desktop-login {
    display: inline-flex;
  }
}

@media (max-width: 1023.98px) {
  .header-btn {
    padding: 0 14px;
  }
  .desktop-login {
    display: none !important;
  }
}

/* 文章页阅读条幅 */
.article-banner {
  background:
    linear-gradient(105deg, rgba(15, 50, 40, 0.92) 0%, rgba(31, 77, 61, 0.82) 60%, rgba(15, 50, 40, 0.76) 100%),
    url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
  color: #ffffff;
  border-bottom: 1px solid var(--hairline);
}

.article-banner-inner {
  padding-top: 58px;
  padding-bottom: 28px;
}

@media (min-width: 768px) {
  .article-banner-inner {
    padding-top: 72px;
    padding-bottom: 38px;
  }
}

.article-breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  font-size: 13px;
  color: #cfe0d8;
  margin-bottom: 14px;
}

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

.article-breadcrumb .sep {
  opacity: 0.6;
}

.article-breadcrumb .current {
  color: rgba(255, 255, 255, 0.78);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  max-width: 220px;
}

/* 文章正文主体 */
.article-wrap {
  background: #ffffff;
  border-radius: 0 0 24px 24px;
  box-shadow: var(--shadow-soft);
  margin-top: -36px;
  position: relative;
  z-index: 5;
  padding: 35px 24px 60px;
}

@media (min-width: 768px) {
  .article-wrap {
    padding: 44px 0 72px;
  }
}

.article-inner {
  max-width: 820px;
  margin: 0 auto;
  padding-left: 20px;
  padding-right: 20px;
}

@media (min-width: 768px) {
  .article-inner {
    padding-left: 0;
    padding-right: 0;
  }
}

.article-h1 {
  font-size: 30px;
  line-height: 1.25;
  font-weight: 800;
  color: var(--ink);
  margin-bottom: 20px;
  letter-spacing: -0.4px;
}

@media (min-width: 768px) {
  .article-h1 {
    font-size: 42px;
    line-height: 1.2;
  }
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px;
  padding-bottom: 28px;
  border-bottom: 1px solid var(--hairline);
  margin-bottom: 38px;
  color: #7c7365;
  font-size: 14px;
}

.article-meta .tag {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 4px 11px;
  background: #f6ecdf;
  color: #6f3d1f;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 600;
}

/* 富文本正文排版 */
.article-content {
  font-size: 16px;
  line-height: 1.9;
  color: #353a36;
}

@media (min-width: 768px) {
  .article-content {
    font-size: 17px;
  }
}

.article-content p {
  margin-bottom: 1.5em;
}

.article-content h2 {
  font-size: 26px;
  font-weight: 800;
  color: var(--ink);
  margin: 2.2em 0 1em;
  padding-left: 16px;
  position: relative;
  line-height: 1.4;
}

.article-content h2::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.18em;
  bottom: 0.15em;
  width: 4px;
  border-radius: 4px;
  background: var(--coral);
}

.article-content h3 {
  font-size: 21px;
  font-weight: 700;
  color: #1d2621;
  margin: 1.9em 0 0.8em;
  line-height: 1.5;
}

.article-content ul {
  margin-bottom: 1.5em;
  padding-left: 22px;
}

.article-content ul li {
  border: none;
  margin-bottom: 0.6em;
  position: relative;
}

.article-content ul li::marker {
  color: var(--moss);
}

.article-content ol {
  margin-bottom: 1.5em;
  padding-left: 24px;
}

.article-content ol li::marker {
  color: var(--moss);
  font-weight: 700;
}

.article-content blockquote {
  margin: 2em 0;
  padding: 18px 20px;
  background: #fbf8f0;
  border-left: 4px solid var(--coral);
  border-radius: 0 10px 10px 0;
  color: #575d57;
  font-size: 15px;
  line-height: 1.8;
}

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

.article-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 0 0 1.6em;
  font-size: 15px;
  background: #fff;
}

.article-content th,
.article-content td {
  border: 1px solid var(--hairline);
  padding: 10px 12px;
  text-align: left;
}

.article-content th {
  background: #faf5ec;
  color: var(--pine);
  font-weight: 700;
}

.article-content img {
  border-radius: 16px;
  margin: 1.8em 0 1em;
  width: 100%;
  height: auto;
  background: #f5ebdd;
}

.article-content figcaption {
  text-align: center;
  font-size: 13px;
  color: #9a958b;
  margin-top: -1em;
  margin-bottom: 1.8em;
}

.article-content hr {
  border: none;
  border-top: 1px solid var(--hairline);
  margin: 2.4em 0;
}

.article-content code {
  background: #f3efe6;
  color: #6b4323;
  border-radius: 6px;
  padding: 2px 7px;
  font-size: 14px;
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
}

.article-content pre {
  background: #1c2a25;
  color: #e5ece6;
  border-radius: 14px;
  padding: 22px 26px;
  overflow-x: auto;
  margin: 1.8em 0;
  font-size: 14px;
  line-height: 1.7;
}

.article-content a:not(.btn) {
  color: var(--moss);
  font-weight: 600;
  border-bottom: 1px solid rgba(31, 77, 61, 0.3);
  transition: border-color 0.2s ease, color 0.2s ease;
}

.article-content a:not(.btn):hover {
  color: var(--coral);
  border-bottom-color: var(--coral);
}

/* 正文结束标签 */
.article-end {
  margin-top: 38px;
  padding-top: 26px;
  border-top: 1px dashed #e5dccf;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.article-end .end-label {
  display: inline-flex;
  align-items: center;
  padding: 6px 16px;
  border-radius: 999px;
  background: #fcf9f2;
  border: 1px solid #eee7da;
  color: #7c7365;
  font-size: 13px;
}

.article-end .end-label strong {
  color: var(--pine);
}

/* 文章页软文报名 CTA 条 */
.post-cta {
  margin-top: 46px;
  padding: 30px 28px;
  background: var(--pine);
  background-image: linear-gradient(120deg, #0F3228 0%, #1F4D3D 70%, #164235 100%);
  border-radius: 18px;
  display: flex;
  flex-direction: column;
  gap: 18px;
  align-items: flex-start;
  color: #fff;
  position: relative;
  overflow: hidden;
}

.post-cta::after {
  content: "";
  position: absolute;
  right: -50px;
  top: -40px;
  width: 160px;
  height: 160px;
  border-radius: 50%;
  background: rgba(242, 92, 58, 0.24);
}

.post-cta h3 {
  font-size: 21px;
  font-weight: 800;
  line-height: 1.45;
}

.post-cta p {
  color: #d7e1dc;
  font-size: 14px;
  max-width: 620px;
  margin-bottom: 0;
  position: relative;
  z-index: 1;
}

.post-cta .btn-primary {
  background: var(--coral);
  color: #fff;
  position: relative;
  z-index: 1;
}

/* 相关推荐 */
.related-section {
  background: transparent;
  padding: 52px 0 72px;
}

 .related-inner {
  max-width: 820px;
  margin: 0 auto;
  padding-left: 20px;
  padding-right: 20px;
}

@media (min-width: 768px) {
  .related-inner {
    padding-left: 0;
    padding-right: 0;
  }
}

.related-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 22px;
}

.related-top h2 {
  font-size: 25px;
  font-weight: 800;
  color: var(--ink);
}

.related-top a {
  font-size: 14px;
  font-weight: 600;
  color: var(--moss);
  transition: color 0.2s ease;
}

.related-top a:hover {
  color: var(--coral);
}

.related-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

@media (min-width: 600px) {
  .related-list {
    grid-template-columns: 1fr 1fr;
  }
}

.related-card {
  display: flex;
  flex-direction: column;
  gap: 8px;
  background: #fffdf8;
  border: 1px solid var(--hairline);
  padding: 20px 20px 16px;
  border-radius: 15px;
  box-shadow: 0 4px 14px rgba(15, 50, 40, 0.03);
  transition: transform var(--trans), box-shadow var(--trans), border-color var(--trans);
}

.related-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-card);
  border-color: var(--moss);
}

.related-card .rel-cat {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.5px;
  color: var(--coral);
}

.related-card h3 {
  font-size: 16px;
  font-weight: 700;
  line-height: 1.55;
  color: var(--ink);
  font-weight: 700;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.related-card time {
  font-size: 13px;
  color: #a49b8e;
}

.related-card .go-link {
  color: var(--moss);
  font-size: 13px;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  margin-top: 4px;
  transition: transform 0.2s ease;
}

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

/* 内容未找到 */
.not-found {
  background: #ffffff;
  border-radius: 18px;
  box-shadow: var(--shadow-soft);
  padding: 72px 24px 92px;
  text-align: center;
}

.not-found h2 {
  font-size: 28px;
  font-weight: 800;
  color: var(--ink);
  text-align: center;
  margin-bottom: 16px;
}

.not-found p {
  color: var(--warmgray);
  margin-bottom: 26px;
}

/* 站点底部（与首页共用结构） */
.site-footer {
  background: var(--pine);
  color: rgba(255, 255, 255, 0.86);
  padding: 56px 0 24px;
  font-size: 14px;
  line-height: 1.7;
}

.site-footer .footer-main {
  display: grid;
  grid-template-columns: 1fr;
  gap: 34px;
  margin-bottom: 38px;
}

@media (min-width: 700px) {
  .site-footer .footer-main {
    grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
    gap: 28px;
  }
}

.footer-brand-text {
  font-size: 20px;
  font-weight: 800;
  color: #ffffff;
  margin-bottom: 14px;
}

.footer-about {
  font-size: 14px;
  color: var(--deep-soft);
  line-height: 1.8;
  max-width: 320px;
}

.footer-title {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.4px;
  text-transform: uppercase;
  color: #ffffff;
  margin-bottom: 16px;
}

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

.footer-links a,
.footer-links li {
  color: #b6c8c0;
  transition: color 0.2s ease;
}

.footer-links a:hover,
.footer-links a:focus-visible {
  color: #ffffff;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  padding-top: 18px;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.58);
}

/* 移动断点微调 */
@media (max-width: 767.98px) {
  .article-h1 {
    margin-bottom: 16px;
  }
  .article-meta {
    gap: 10px;
  }
  .container.header-inner {
    gap: 10px;
  }
  .brand-text {
    font-size: 16px;
  }
}

@media (min-width: 769px) and (max-width: 1279px) {
  .main-nav {
    gap: 20px;
  }
}

/* 加载中的图片底色 */
.cover-placeholder {
  background: #EFE8DA;
}

/* roulang page: category1 */
:root {
  --brand: #0F3228;
  --brand-2: #1F4D3D;
  --paper: #F7F3EA;
  --paper-deep: #F1E8D4;
  --white: #FFFFFF;
  --ink: #161813;
  --muted: #5A5F58;
  --line: #E4DED2;
  --accent: #F25C3A;
  --accent-deep: #E04B2A;
  --amber: #C88A2D;
  --ok: #1F7A5A;
  --error: #C94131;
  --dark-muted: #C8D1C9;
  --radius-lg: 24px;
  --radius: 16px;
  --radius-sm: 12px;
  --shadow-sm: 0 4px 14px rgba(22, 24, 19, 0.06);
  --shadow-md: 0 16px 40px rgba(22, 24, 19, 0.1);
  --shadow-accent: 0 8px 20px rgba(242, 92, 58, 0.25);
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: "PingFang SC", "HarmonyOS Sans SC", "MiSans", "Noto Sans CJK SC", "Microsoft YaHei", sans-serif;
  font-size: 16px;
  line-height: 1.85;
  -webkit-font-smoothing: antialiased;
}

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

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

button,
input,
select,
textarea {
  font: inherit;
}

ul,
ol {
  margin: 0;
  padding-left: 1.25rem;
}

h1,
h2,
h3,
h4,
p {
  margin-top: 0;
}

.container {
  width: min(1280px, calc(100vw - 40px));
  margin-inline: auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 60;
  height: 80px;
  background: rgba(247, 243, 234, 0.92);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}

.header-inner {
  display: flex;
  align-items: center;
  gap: 20px;
  height: 80px;
}

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

.brand-mark {
  width: 38px;
  height: 38px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--brand);
  color: #fff;
  font-weight: 800;
  font-size: 13px;
  border-radius: 10px;
  letter-spacing: 0.04em;
}

.brand-text {
  font-size: 19px;
  font-weight: 800;
  letter-spacing: 0.02em;
  white-space: nowrap;
}

.main-nav {
  display: none;
  align-items: center;
  gap: 26px;
  margin-inline: auto;
}

.main-nav a {
  position: relative;
  padding: 8px 0;
  color: var(--muted);
  font-weight: 500;
  font-size: 15px;
  transition: color .2s ease;
}

.main-nav a:hover {
  color: var(--ink);
}

.main-nav a.active {
  color: var(--ink);
  font-weight: 700;
}

.main-nav a.active::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -4px;
  width: 20px;
  height: 2px;
  background: var(--accent);
  border-radius: 2px;
}

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

.cmd-search {
  display: none;
  align-items: center;
  gap: 8px;
  height: 38px;
  min-width: 220px;
  padding: 0 8px 0 14px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
  font-size: 13px;
  cursor: pointer;
  transition: border-color .2s ease, box-shadow .2s ease;
}

.cmd-search:hover {
  border-color: var(--brand-2);
  box-shadow: var(--shadow-sm);
}

.cmd-search kbd {
  margin-left: auto;
  font-size: 11px;
  padding: 2px 7px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--paper);
  color: var(--muted);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 42px;
  padding: 0 22px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 700;
  line-height: 1;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform .2s ease, box-shadow .2s ease, background .2s ease, border-color .2s ease;
  white-space: nowrap;
}

.btn-primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
  box-shadow: 0 6px 16px rgba(242, 92, 58, 0.18);
}

.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-accent);
}

.btn-primary:active {
  transform: translateY(1px) scale(0.98);
  box-shadow: 0 4px 10px rgba(242, 92, 58, 0.2);
}

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

.btn-ghost-light {
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.6);
  color: #fff;
}

.btn-ghost-light:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: #fff;
}

.btn-outline {
  background: transparent;
  border: 1px solid var(--brand);
  color: var(--brand);
}

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

.btn-text {
  background: transparent;
  border-color: transparent;
  color: var(--ink);
  font-weight: 600;
}

.btn-text:hover {
  background: rgba(15, 50, 40, 0.06);
}

.header-btn {
  height: 38px;
  min-height: 38px;
  padding: 0 16px;
  border-radius: 999px;
}

.mobile-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--white);
  color: var(--ink);
  cursor: pointer;
}

.mobile-nav {
  position: fixed;
  top: 80px;
  left: 0;
  right: 0;
  z-index: 55;
  background: var(--paper);
  border-bottom: 1px solid var(--line);
  display: none;
  flex-direction: column;
  gap: 4px;
  padding: 16px 20px 24px;
  box-shadow: var(--shadow-md);
}

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

.mobile-nav a {
  display: block;
  padding: 12px 12px;
  border-radius: 12px;
  color: var(--ink);
  font-weight: 600;
}

.mobile-nav a:hover {
  background: var(--paper-deep);
}

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

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

  .cmd-search {
    display: inline-flex;
  }

  .mobile-toggle {
    display: none;
  }

  .header-actions {
    margin-left: 0;
  }
}

@media (max-width: 1023px) {
  .header-btn.desktop-login {
    display: none;
  }
}

/* 页面横幅 */
.category-hero {
  background:
    linear-gradient(100deg, rgba(15, 50, 40, 0.96) 0%, rgba(15, 50, 40, 0.82) 55%, rgba(31, 77, 61, 0.7) 100%),
    url("/assets/images/backpic/back-1.webp") center / cover no-repeat;
  color: #f2f1e9;
  padding: 74px 0 66px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--dark-muted);
  margin-bottom: 34px;
}

.breadcrumb a {
  color: rgba(247, 243, 234, 0.7);
  transition: color .2s ease;
}

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

.breadcrumb .sep {
  opacity: 0.5;
}

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

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  border-radius: 999px;
  background: rgba(200, 138, 45, 0.16);
  border: 1px solid rgba(200, 138, 45, 0.35);
  color: #E9C685;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.category-hero h1 {
  margin: 20px 0 14px;
  font-size: clamp(2.5rem, 5vw, 4.6rem);
  line-height: 1.14;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: #fff;
}

.hero-desc {
  max-width: 640px;
  margin-bottom: 26px;
  font-size: 17px;
  line-height: 1.9;
  color: rgba(247, 243, 234, 0.92);
}

.hero-desc strong {
  color: #fff;
  font-weight: 700;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 14px;
}

.hero-note {
  margin-top: 22px;
  font-size: 13px;
  color: var(--dark-muted);
  border-left: 3px solid var(--accent);
  padding-left: 12px;
}

.hero-panel {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: var(--radius-lg);
  padding: 28px;
  backdrop-filter: blur(6px);
  color: #fff;
  max-width: 480px;
}

.hero-panel .panel-tag {
  display: inline-block;
  font-size: 12px;
  color: #F3C88A;
  margin-bottom: 10px;
  letter-spacing: 0.08em;
}

.hero-panel h3 {
  font-size: 20px;
  line-height: 1.5;
  margin-bottom: 6px;
}

.hero-panel p {
  color: var(--dark-muted);
  font-size: 14px;
  margin-bottom: 12px;
}

.hero-panel a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: #fff;
  font-size: 14px;
  font-weight: 700;
  transition: color .2s ease;
}

.hero-panel a:hover {
  color: #F3C88A;
}

@media (min-width: 1024px) {
  .category-hero-grid {
    grid-template-columns: 1.05fr 0.95fr;
  }

  .hero-panel {
    justify-self: end;
    width: 100%;
  }
}

/* 数据信息条 */
.quick-proof {
  background: var(--white);
  border-bottom: 1px solid var(--line);
}

.proof-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0;
}

.proof-item {
  padding: 32px 22px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.proof-item:nth-child(2n) {
  border-right: 0;
}

.proof-item:nth-last-child(-n+2) {
  border-bottom: 0;
}

.proof-item .proof-label {
  font-size: 13px;
  color: var(--muted);
}

.proof-item strong {
  display: block;
  margin-top: 4px;
  font-size: 34px;
  font-weight: 800;
  line-height: 1.15;
  color: var(--brand);
  font-variant-numeric: tabular-nums;
}

.proof-item span {
  display: block;
  font-size: 13px;
  color: var(--muted);
  margin-top: 4px;
}

@media (min-width: 1024px) {
  .proof-grid {
    grid-template-columns: repeat(4, 1fr);
  }

  .proof-item {
    padding: 34px 30px;
    border-bottom: 0;
  }

  .proof-item:nth-child(2n) {
    border-right: 1px solid var(--line);
  }

  .proof-item:last-child {
    border-right: 0;
  }
}

/* 版块通用 */
.section {
  padding: 84px 0;
}

.section-heading {
  max-width: 720px;
  margin-bottom: 44px;
}

.section-heading h2 {
  margin: 16px 0 12px;
  font-size: clamp(1.8rem, 3.4vw, 2.7rem);
  line-height: 1.22;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.section-heading .section-sub {
  font-size: 16px;
  color: var(--muted);
  margin-bottom: 0;
}

/* 公告时间线 */
.announcement-section {
  background: var(--paper);
}

.ann-track-list {
  border-top: 1px solid var(--line);
}

.ann-item {
  display: grid;
  grid-template-columns: 82px 24px 1fr;
  gap: 16px;
  align-items: start;
  padding: 40px 0 42px;
  border-bottom: 1px solid var(--line);
}

.ann-date {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  padding-top: 2px;
}

.ann-date strong {
  font-size: 44px;
  font-weight: 800;
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--brand);
  font-variant-numeric: tabular-nums;
}

.ann-date span {
  font-size: 13px;
  color: var(--muted);
  margin-top: 6px;
}

.ann-rail {
  position: relative;
  width: 24px;
  height: 100%;
}

.ann-rail::before {
  content: "";
  position: absolute;
  left: 10px;
  top: 12px;
  bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, var(--brand) 0%, var(--line) 100%);
}

.ann-rail::after {
  content: "";
  position: absolute;
  left: 4px;
  top: 10px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--paper);
  border: 4px solid var(--brand);
  transition: background .2s ease;
}

.ann-item:last-child .ann-rail::before {
  display: none;
}

.ann-item:hover .ann-rail::after {
  background: var(--accent);
  border-color: var(--accent);
}

.ann-main {
  min-width: 0;
}

.ann-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-bottom: 10px;
}

.ann-meta .time {
  font-size: 13px;
  color: var(--muted);
  letter-spacing: 0.02em;
}

.tag {
  display: inline-flex;
  align-items: center;
  min-height: 24px;
  padding: 2px 10px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
  line-height: 1.4;
}

.tag-amber {
  background: #F1E8D4;
  color: #7A5A18;
}

.tag-green {
  background: #E2ECE4;
  color: var(--brand);
}

.tag-coral {
  background: rgba(242, 92, 58, 0.13);
  color: #B34325;
}

.ann-main h3 {
  margin: 0 0 8px;
  font-size: 20px;
  line-height: 1.55;
  font-weight: 800;
}

.ann-main h3 a:hover {
  color: var(--accent-deep);
}

.ann-main p {
  margin: 0 0 10px;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.85;
}

.ann-bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 18px;
  margin-top: 6px;
}

.arrow-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--brand);
  font-size: 14px;
  font-weight: 700;
  transition: gap .2s ease, color .2s ease;
}

.arrow-link:hover {
  gap: 10px;
  color: var(--accent-deep);
}

.archive-note {
  margin-top: 30px;
  padding: 18px 22px;
  background: var(--paper-deep);
  border-radius: var(--radius);
  border: 1px solid rgba(200, 138, 45, 0.18);
  color: var(--muted);
  font-size: 14px;
}

.archive-note a {
  color: var(--brand);
  font-weight: 700;
  border-bottom: 1px solid transparent;
  transition: border-color .2s ease;
}

.archive-note a:hover {
  border-bottom-color: var(--brand);
}

@media (max-width: 600px) {
  .ann-item {
    grid-template-columns: 58px 12px 1fr;
    gap: 10px;
    padding: 26px 0;
  }

  .ann-date strong {
    font-size: 30px;
  }

  .ann-rail::before {
    left: 6px;
  }

  .ann-rail::after {
    left: 0;
    width: 12px;
    height: 12px;
  }

  .ann-main h3 {
    font-size: 18px;
  }
}

/* 核验区块 */
.verify-section {
  background: var(--white);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.verify-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 44px;
  align-items: center;
}

.verify-visual {
  background: var(--paper-deep);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

.verify-visual img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.verify-content h2 {
  margin: 18px 0 14px;
  font-size: clamp(1.8rem, 3vw, 2.5rem);
  line-height: 1.25;
  font-weight: 800;
}

.verify-content > p {
  color: var(--muted);
  margin-bottom: 18px;
  max-width: 640px;
}

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

.check-list li {
  position: relative;
  padding: 12px 16px 12px 46px;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  font-size: 15px;
}

.check-list li::before {
  content: "✓";
  position: absolute;
  left: 16px;
  top: 11px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--brand);
  color: #fff;
  font-size: 13px;
  font-weight: 800;
}

@media (min-width: 1024px) {
  .verify-grid {
    grid-template-columns: 0.95fr 1.05fr;
  }
}

/* 更多官方来源 */
.related-section {
  background: var(--paper);
}

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

.source-main {
  background:
    linear-gradient(120deg, rgba(15, 50, 40, 0.95), rgba(31, 77, 61, 0.88)),
    url("/assets/images/backpic/back-2.png") center / cover no-repeat no-repeat;
  border-radius: var(--radius-lg);
  color: #fff;
  padding: 32px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-height: 240px;
  box-shadow: var(--shadow-md);
}

.source-main h3 {
  font-size: 26px;
  margin: 8px 0 10px;
  line-height: 1.35;
}

.source-main p {
  color: var(--dark-muted);
  margin-bottom: 18px;
}

.source-main .btn {
  align-self: flex-start;
}

.source-list {
  background: var(--white);
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  padding: 10px 26px;
}

.source-list a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 22px 0;
  border-bottom: 1px solid var(--line);
  font-weight: 600;
  transition: padding-left .2s ease, color .2s ease;
}

.source-list a:last-child {
  border-bottom: 0;
}

.source-list a:hover {
  color: var(--accent-deep);
  padding-left: 6px;
}

.source-list .arrow {
  color: var(--brand);
  font-weight: 800;
  font-size: 20px;
  transition: transform .2s ease;
}

.source-list a:hover .arrow {
  transform: translateX(6px);
}

@media (min-width: 1024px) {
  .related-grid {
    grid-template-columns: 0.9fr 1.1fr;
    align-items: stretch;
  }
}

/* 订阅区块 */
.subscribe-band {
  background: var(--paper-deep);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.subscribe-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 30px;
  align-items: center;
}

.subscribe-content h2 {
  margin: 14px 0 12px;
  font-size: clamp(1.8rem, 3vw, 2.5rem);
  line-height: 1.28;
  font-weight: 800;
}

.subscribe-content p {
  color: var(--muted);
  max-width: 560px;
  margin-bottom: 0;
}

.subscribe-form {
  background: var(--white);
  padding: 26px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-md);
}

.form-field {
  display: grid;
  gap: 8px;
}

.form-field label {
  font-size: 14px;
  font-weight: 700;
  color: var(--ink);
}

.form-field input {
  width: 100%;
  height: 48px;
  padding: 0 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--paper);
  color: var(--ink);
  transition: border-color .2s ease, box-shadow .2s ease;
}

.form-field input:focus {
  outline: none;
  border-color: var(--brand);
  box-shadow: 0 0 0 3px rgba(15, 50, 40, 0.12);
  background: #fff;
}

.form-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
  margin-top: 16px;
}

.form-status {
  margin: 12px 0 0;
  font-size: 14px;
  color: var(--ok);
}

.privacy-line {
  margin: 10px 0 0;
  font-size: 12px;
  color: var(--muted);
}

@media (min-width: 900px) {
  .subscribe-grid {
    grid-template-columns: 1fr 1fr;
  }
}

/* FAQ */
.faq-section {
  background: var(--paper);
}

.faq-list {
  display: grid;
  gap: 14px;
  max-width: 860px;
}

.faq-item {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color .2s ease, box-shadow .2s ease;
}

.faq-item:hover {
  border-color: #C9BCA8;
}

.faq-item summary {
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 22px 26px;
  font-size: 17px;
  font-weight: 700;
  line-height: 1.5;
  cursor: pointer;
  color: var(--ink);
}

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

.faq-item summary::after {
  content: "+";
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--paper-deep);
  color: var(--brand);
  font-size: 22px;
  font-weight: 400;
  line-height: 1;
  transition: transform .3s ease, background .3s ease, color .3s ease;
}

.faq-item[open] summary {
  border-bottom: 1px solid var(--line);
}

.faq-item[open] summary::after {
  transform: rotate(45deg);
  background: var(--brand);
  color: #fff;
}

.faq-answer {
  padding: 4px 26px 24px;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.9;
}

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

.faq-answer a {
  color: var(--brand);
  font-weight: 700;
  border-bottom: 1px solid transparent;
}

.faq-answer a:hover {
  border-bottom-color: var(--brand);
}

/* 底部 CTA */
.bottom-cta {
  background:
    linear-gradient(105deg, rgba(15, 50, 40, 0.98), rgba(15, 50, 40, 0.86)),
    url("/assets/images/backpic/back-3.webp") center / cover no-repeat;
  color: #fff;
  padding: 86px 0;
}

.bottom-cta-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}

.bottom-cta h2 {
  margin: 0 0 10px;
  font-size: clamp(1.7rem, 3vw, 2.5rem);
  line-height: 1.3;
  font-weight: 800;
}

.bottom-cta p {
  color: var(--dark-muted);
  max-width: 560px;
  margin: 0;
}

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

/* 页脚 */
.site-footer {
  background: #0A241E;
  color: var(--dark-muted);
}

.footer-main {
  display: grid;
  gap: 42px;
  padding: 66px 0 44px;
  grid-template-columns: 1fr;
}

.footer-brand-text {
  font-size: 22px;
  font-weight: 800;
  color: #fff;
  letter-spacing: 0.02em;
  margin-bottom: 12px;
}

.footer-about {
  color: #9BAE9E;
  font-size: 14px;
  line-height: 1.9;
  max-width: 360px;
  margin-bottom: 0;
}

.footer-title {
  color: #fff;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.05em;
  margin: 0 0 16px;
}

.footer-links {
  list-style: none;
  padding-left: 0;
  margin: 0;
}

.footer-links li {
  margin-bottom: 10px;
  font-size: 14px;
  color: #9BAE9E;
}

.footer-links a {
  color: inherit;
  transition: color .2s ease;
}

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

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding: 16px 0;
  font-size: 13px;
  color: #82938A;
}

@media (min-width: 900px) {
  .footer-main {
    grid-template-columns: 1.7fr 0.9fr 0.9fr 1.3fr;
    gap: 40px;
  }
}

.btn:focus,
a:focus,
button:focus,
input:focus {
  outline: none;
}

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

/* roulang page: category2 */
:root {
            --brand: #0F3228;
            --brand-2: #1F4D3D;
            --paper: #F7F3EA;
            --panel: #FFFFFF;
            --soft: #F1E8D4;
            --line: #E4DED2;
            --ink: #161813;
            --muted: #5A5F58;
            --accent: #F25C3A;
            --amber: #C88A2D;
            --success: #1F7A5A;
            --white: #FFFFFF;
            --deep-sub: #C8D1C9;
            --radius: 16px;
            --radius-lg: 22px;
            --shadow: 0 10px 28px rgba(32, 25, 18, .08);
            --font-stack: "PingFang SC", "HarmonyOS Sans SC", "MiSans", "Noto Sans CJK SC", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            font-family: var(--font-stack);
            background: var(--paper);
            color: var(--ink);
            line-height: 1.7;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
        }

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

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

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

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

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

        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--brand-2);
            outline-offset: 3px;
            border-radius: 4px;
        }

        .container,
        .wrap {
            width: min(100% - 40px, 1280px);
            margin-inline: auto;
        }

        .mobile-nav {
            display: none;
        }

        .mobile-nav.is-open {
            display: flex;
            flex-direction: column;
        }

        .section-pad {
            padding-block: 96px;
        }

        .eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: .12em;
            color: var(--brand-2);
            background: rgba(31, 77, 61, .08);
            border: 1px solid rgba(31, 77, 61, .14);
            border-radius: 999px;
            padding: 7px 14px;
            margin-bottom: 18px;
        }

        .section-head {
            display: flex;
            justify-content: space-between;
            gap: 18px;
            align-items: flex-end;
            margin-bottom: 42px;
            flex-wrap: wrap;
        }

        .section-title {
            font-size: clamp(1.7rem, 3.1vw, 2.45rem);
            font-weight: 800;
            line-height: 1.24;
            color: var(--ink);
            letter-spacing: -.02em;
        }

        .section-title::before {
            content: "";
            display: inline-block;
            width: 8px;
            height: .85em;
            border-radius: 99px;
            background: var(--accent);
            margin-right: 12px;
            vertical-align: -0.08em;
        }

        .section-sub {
            color: var(--muted);
            font-size: 16px;
            max-width: 56em;
            margin-top: 16px;
            margin-bottom: 0;
        }

        .text-link {
            color: var(--brand-2);
            font-weight: 600;
            transition: color .2s;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

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

        .text-link svg {
            transition: transform .2s;
        }

        .text-link:hover svg {
            transform: translateX(4px);
        }

        /* ===== 按钮 ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            border-radius: 999px;
            font-weight: 600;
            line-height: 1;
            border: 1px solid transparent;
            transition: transform .2s, box-shadow .2s, background .2s, color .2s;
            white-space: nowrap;
            padding: 14px 24px;
            font-size: 15px;
        }

        .btn-primary {
            background: var(--accent);
            color: #fff;
            box-shadow: 0 6px 16px rgba(242, 92, 58, .16);
        }

        .btn-primary:hover {
            transform: translateY(-1px);
            box-shadow: 0 10px 24px rgba(242, 92, 58, .26);
        }

        .btn-primary:active {
            transform: scale(.98) translateY(0);
            box-shadow: 0 4px 10px rgba(242, 92, 58, .16);
        }

        .btn-dark {
            background: var(--brand);
            color: #fff;
            box-shadow: 0 8px 22px rgba(15, 50, 40, .2);
        }

        .btn-dark:hover {
            transform: translateY(-1px);
            background: #185443;
            box-shadow: 0 12px 28px rgba(15, 50, 40, .28);
        }

        .btn-outline-light {
            border-color: rgba(255, 255, 255, .65);
            color: #fff;
            background: transparent;
        }

        .btn-outline-light:hover {
            border-color: #fff;
            background: rgba(255, 255, 255, .08);
        }

        .btn-outline-dark {
            border-color: var(--brand-2);
            color: var(--brand-2);
            background: transparent;
        }

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

        .btn-text {
            color: var(--brand-2);
            font-weight: 600;
            padding: 8px 6px;
        }

        .btn-text:hover {
            color: var(--accent);
        }

        /* ===== 顶部导航 ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 50;
            background: rgba(247, 243, 234, .9);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--line);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            min-height: 72px;
        }

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

        .brand-mark {
            width: 36px;
            height: 36px;
            border-radius: 9px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: var(--brand);
            color: #fff;
            font-weight: 800;
            font-size: 13px;
            letter-spacing: .04em;
        }

        .brand-text {
            font-weight: 800;
            font-size: 19px;
            color: var(--brand);
            letter-spacing: -.02em;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 30px;
            margin-inline: auto;
        }

        .main-nav a {
            position: relative;
            color: var(--muted);
            font-size: 15px;
            font-weight: 500;
            padding: 10px 2px;
            transition: color .2s;
        }

        .main-nav a::after {
            content: "";
            position: absolute;
            left: 0;
            bottom: 2px;
            width: 20px;
            height: 2px;
            border-radius: 3px;
            background: var(--accent);
            opacity: 0;
            transform: scaleX(.4);
            transform-origin: left;
            transition: opacity .2s, transform .2s;
        }

        .main-nav a:hover,
        .main-nav a.active {
            color: var(--ink);
            font-weight: 600;
        }

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

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

        .cmd-search {
            display: flex;
            align-items: center;
            gap: 8px;
            background: #fff;
            border: 1px solid var(--line);
            padding: 8px 12px 8px 14px;
            border-radius: 999px;
            color: var(--muted);
            min-width: 220px;
            transition: border .2s, box-shadow .2s;
            font-size: 14px;
        }

        .cmd-search:hover {
            border-color: var(--brand-2);
            box-shadow: 0 4px 14px rgba(31, 77, 61, .1);
        }

        .cmd-search span {
            flex: 1;
            text-align: left;
            white-space: nowrap;
        }

        .cmd-search kbd {
            background: var(--paper);
            border: 1px solid var(--line);
            border-bottom-width: 2px;
            font-size: 11px;
            border-radius: 6px;
            padding: 1px 7px;
            font-family: inherit;
            color: var(--muted);
        }

        .header-btn {
            padding-block: 10px;
        }

        .mobile-toggle {
            display: none;
            align-items: center;
            justify-content: center;
            width: 42px;
            height: 42px;
            border-radius: 10px;
            color: var(--brand);
        }

        .mobile-toggle:hover {
            background: rgba(15, 50, 40, .06);
        }

        .mobile-nav {
            display: none;
            background: #fff;
            border-top: 1px solid var(--line);
            padding: 16px 20px 22px;
            box-shadow: 0 18px 26px rgba(22, 24, 19, .06);
        }

        .mobile-nav a {
            padding: 10px 0;
            color: var(--ink);
            font-weight: 600;
            border-bottom: 1px solid #efe9df;
        }

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

        /* ===== 分类页横幅 ===== */
        .cat-hero {
            background: var(--brand);
            color: #fff;
            padding-block: 64px 58px;
            border-bottom: 1px solid rgba(255, 255, 255, .08);
        }

        .cat-hero::before {
            content: "";
            position: absolute;
            inset: 0;
            pointer-events: none;
            background-image: url('/assets/images/backpic/back-3.webp');
            background-size: cover;
            background-position: center 38%;
            opacity: .16;
        }

        .cat-hero .hero-layout {
            position: relative;
            display: grid;
            grid-template-columns: 1.05fr .7fr;
            gap: 52px;
            align-items: center;
        }

        .hero-kicker {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: #dcebe1;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: .1em;
            padding: 7px 14px;
            border: 1px solid rgba(255, 255, 255, .32);
            border-radius: 999px;
            margin-bottom: 20px;
            background: rgba(15, 50, 40, .42);
        }

        .cat-hero h1 {
            font-size: clamp(2.2rem, 5vw, 4.2rem);
            line-height: 1.06;
            font-weight: 800;
            letter-spacing: -.03em;
        }

        .hero-desc {
            color: var(--deep-sub);
            font-size: 16.5px;
            line-height: 1.9;
            max-width: 43em;
            margin: 24px 0 34px;
        }

        .hero-desc strong {
            color: #fff;
            font-weight: 700;
        }

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

        .hero-version-card {
            background: rgba(255, 255, 255, .08);
            border: 1px solid rgba(255, 255, 255, .24);
            border-radius: var(--radius);
            padding: 26px 28px;
            color: #fff;
            position: relative;
            backdrop-filter: blur(6px);
        }

        .hero-version-card::after {
            content: "";
            position: absolute;
            right: -12px;
            top: -12px;
            width: 34px;
            height: 34px;
            background: var(--accent);
            border-radius: 12px 12px 12px 2px;
            opacity: .9;
        }

        .hero-version-card span {
            color: var(--deep-sub);
            font-size: 13px;
        }

        .hero-version-card strong {
            display: block;
            font-size: 3rem;
            font-weight: 800;
            letter-spacing: -.03em;
            margin: 10px 0 18px;
            line-height: .9;
        }

        .hero-version-card .meta-line {
            color: var(--deep-sub);
            border-top: 1px solid rgba(255, 255, 255, .18);
            padding-top: 18px;
            font-size: 13.5px;
            display: flex;
            gap: 22px;
        }

        .hero-version-card .meta-line b {
            color: #fff;
            font-weight: 600;
        }

        /* ===== 数据条 ===== */
        .stat-bar {
            background: #fff;
            border-bottom: 1px solid var(--line);
            padding-block: 30px;
        }

        .stat-list {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
        }

        .stat-item {
            text-align: center;
            border-left: 1px solid var(--line);
            padding: 6px 14px;
        }

        .stat-item:first-child {
            border-left: 0;
        }

        .stat-item strong {
            display: block;
            font-size: clamp(2.2rem, 4vw, 3.1rem);
            font-weight: 800;
            letter-spacing: -.03em;
            color: var(--brand);
            line-height: 1.2;
            font-variant-numeric: tabular-nums;
        }

        .stat-item span {
            color: var(--muted);
            font-size: 14px;
            display: block;
            margin-top: 6px;
        }

        /* ===== 版本特性区 ===== */
        .release-feature {
            background: var(--panel);
            border-block: 1px solid var(--line);
            padding-block: 88px;
        }

        .release-grid {
            display: grid;
            grid-template-columns: minmax(0, 1.02fr) minmax(0, .98fr);
            gap: 46px;
            align-items: center;
        }

        .release-fig {
            border-radius: var(--radius-lg);
            overflow: hidden;
            position: relative;
            background: #EFE8DA;
            box-shadow: var(--shadow);
        }

        .release-fig img {
            width: 100%;
            aspect-ratio: 4/3;
            object-fit: cover;
        }

        .release-fig-caption {
            position: absolute;
            left: 14px;
            bottom: 14px;
            background: rgba(15, 50, 40, .82);
            color: #fff;
            font-size: 13px;
            padding: 7px 13px;
            border-radius: 999px;
            backdrop-filter: blur(4px);
        }

        .version-status {
            display: inline-flex;
            gap: 6px;
            align-items: center;
            background: rgba(31, 122, 90, .1);
            color: var(--success);
            border-radius: 999px;
            font-size: 12px;
            font-weight: 600;
            padding: 5px 12px;
            margin-bottom: 16px;
        }

        .version-status::before {
            content: "";
            width: 7px;
            height: 7px;
            border-radius: 99px;
            background: currentColor;
        }

        .release-content h2 {
            font-size: clamp(1.55rem, 2.8vw, 2.2rem);
            line-height: 1.3;
            letter-spacing: -.02em;
            color: var(--brand);
            margin-bottom: 18px;
        }

        .release-content>p {
            color: var(--muted);
            line-height: 1.9;
            margin-bottom: 20px;
        }

        .check-list {
            list-style: none;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 12px 24px;
            margin: 20px 0 28px;
        }

        .check-list li {
            position: relative;
            padding-left: 26px;
            line-height: 1.6;
            font-size: 14.5px;
            color: var(--ink);
        }

        .check-list li::before {
            content: "";
            position: absolute;
            left: 0;
            top: 4px;
            width: 16px;
            height: 16px;
            background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%231F4D3D' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m20 6-11 11-5-5'/%3E%3C/svg%3E") center / contain no-repeat;
        }

        /* ===== 版本时间线 ===== */
        .changelog-section {
            background: var(--paper);
            padding-block: 90px;
        }

        .changelog-list {
            list-style: none;
        }

        .version-item {
            display: grid;
            grid-template-columns: 120px 1fr;
            gap: 28px;
            position: relative;
            padding-bottom: 34px;
            margin-bottom: 20px;
        }

        .version-item::before {
            content: "";
            position: absolute;
            left: 262px;
            top: 0;
            bottom: 0;
            width: 1px;
            background: var(--line);
        }

        .version-item:last-child::before {
            display: none;
        }

        .version-num {
            position: relative;
            z-index: 1;
            text-align: right;
        }

        .version-num .ver {
            display: block;
            background: #fff;
            border: 1px solid var(--line);
            padding: 8px 10px;
            border-radius: 10px;
            font-size: 15px;
            font-weight: 800;
            color: var(--brand);
            box-shadow: 0 2px 6px rgba(24, 20, 15, .04);
            text-align: center;
        }

        .version-num time {
            display: block;
            margin-top: 12px;
            font-size: 13px;
            color: var(--muted);
            font-variant-numeric: tabular-nums;
        }

        .version-ball {
            position: absolute;
            left: -4px;
            top: 10px;
            width: 9px;
            height: 9px;
            border-radius: 999px;
            background: var(--amber);
        }

        .version-ball.hot {
            background: var(--accent);
        }

        .version-panel {
            background: #fff;
            border: 1px solid var(--line);
            border-radius: var(--radius);
            padding: 26px 30px;
            box-shadow: 0 4px 12px rgba(24, 20, 15, .03);
            transition: border .25s, box-shadow .25s;
            position: relative;
        }

        .version-panel:hover {
            border-color: var(--brand-2);
            box-shadow: var(--shadow);
        }

        .version-head {
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 8px 18px;
            align-items: center;
            margin-bottom: 10px;
        }

        .tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--brand-2);
            background: rgba(15, 50, 40, .08);
            font-size: 12px;
            font-weight: 600;
            border-radius: 999px;
            padding: 3px 11px;
        }

        .tag.accent {
            color: #B23B23;
            background: rgba(242, 92, 58, .13);
        }

        .tag.amber {
            color: #965507;
            background: rgba(200, 138, 45, .15);
        }

        .version-panel h3 {
            font-size: 20px;
            font-weight: 750;
            letter-spacing: -.01em;
            color: var(--ink);
            margin-bottom: 6px;
        }

        .version-panel .summary {
            color: var(--muted);
            font-size: 15px;
            line-height: 1.8;
            margin-bottom: 14px;
        }

        .scope-list {
            display: flex;
            flex-wrap: wrap;
            gap: 6px 16px;
            list-style: none;
            padding: 0;
            margin: 0 0 12px;
        }

        .scope-list li {
            position: relative;
            font-size: 13px;
            color: var(--muted);
            padding-left: 14px;
        }

        .scope-list li::before {
            content: "○";
            position: absolute;
            left: 0;
            top: -1px;
            color: var(--brand-2);
            font-size: 12px;
        }

        .version-detail {
            font-size: 14px;
            font-weight: 600;
            color: var(--brand-2);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        /* ===== 反馈区 ===== */
        .feedback-section {
            background: #fff;
            border-top: 1px solid var(--line);
            padding-block: 90px;
        }

        .feedback-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 60px;
            align-items: center;
        }

        .feedback-img {
            border-radius: 20px;
            overflow: hidden;
            background: #EFE8DA;
        }

        .feedback-img img {
            aspect-ratio: 3/2.4;
            object-fit: cover;
            width: 100%;
        }

        .feedback-form {
            background: var(--paper);
            border: 1px solid var(--line);
            border-radius: var(--radius-lg);
            padding: 32px;
        }

        .feedback-form label {
            display: block;
            font-size: 14px;
            font-weight: 600;
            color: var(--ink);
            margin-bottom: 8px;
        }

        .feedback-form input,
        .feedback-form textarea {
            display: block;
            width: 100%;
            border: 1px solid var(--line);
            background: #fff;
            border-radius: 12px;
            padding: 11px 14px;
            color: var(--ink);
            transition: border .2s, box-shadow .2s;
            margin-bottom: 18px;
            resize: vertical;
        }

        .feedback-form input:focus,
        .feedback-form textarea:focus {
            border-color: var(--brand-2);
            box-shadow: 0 0 0 3px rgba(31, 77, 61, .12);
            outline: none;
        }

        .feedback-form .btn {
            width: 100%;
        }

        .form-hint {
            color: var(--muted);
            font-size: 12.5px;
            line-height: 1.6;
            margin-top: 12px;
            text-align: center;
        }

        /* ===== FAQ ===== */
        .faq-section {
            background: var(--paper);
            padding-block: 80px;
        }

        .faq-wrap {
            max-width: 880px;
            margin-inline: auto;
        }

        details.faq-item {
            border: 1px solid var(--line);
            background: #fff;
            border-radius: 14px;
            margin-bottom: 14px;
            overflow: hidden;
            transition: border-color .2s, box-shadow .2s;
        }

        details.faq-item:hover {
            border-color: var(--brand-2);
        }

        details.faq-item[open] {
            box-shadow: var(--shadow);
        }

        .faq-item summary {
            cursor: pointer;
            list-style: none;
            display: flex;
            justify-content: space-between;
            gap: 18px;
            align-items: center;
            padding: 18px 20px;
            font-weight: 600;
            font-size: 16px;
            color: var(--ink);
        }

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

        .faq-item .faq-icon {
            flex: 0 0 auto;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--soft);
            color: var(--brand-2);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            transition: background .2s, transform .25s;
        }

        details.faq-item[open] .faq-icon {
            background: var(--brand);
            color: #fff;
            transform: rotate(45deg);
        }

        .faq-item .faq-answer {
            padding: 0 20px 20px;
            color: var(--muted);
            font-size: 15px;
            line-height: 1.85;
            border-top: 1px solid var(--line);
            padding-top: 14px;
        }

        /* ===== 底部CTA ===== */
        .bottom-cta {
            background: linear-gradient(110deg, #0f3228, #1d5340 64%, #205e48);
            color: #fff;
            padding-block: 70px;
        }

        .cta-grid {
            display: grid;
            grid-template-columns: 1.05fr .95fr;
            gap: 46px;
            align-items: center;
        }

        .bottom-cta h2 {
            font-size: clamp(1.75rem, 3.4vw, 2.8rem);
            font-weight: 800;
            line-height: 1.22;
            letter-spacing: -.02em;
            margin: 14px 0 20px;
        }

        .bottom-cta p {
            color: #c9d6cd;
            font-size: 15.5px;
            line-height: 1.9;
        }

        .cta-form {
            background: #fff;
            border-radius: 18px;
            padding: 28px;
            border: 1px solid rgba(255, 255, 255, .2);
        }

        .cta-form-inline {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 14px;
        }

        .cta-form label {
            display: block;
            font-size: 13px;
            color: var(--ink);
            font-weight: 600;
            margin: 0 0 7px;
        }

        .cta-form input {
            width: 100%;
            border: 1px solid var(--line);
            border-radius: 10px;
            padding: 11px 13px;
            background: var(--paper);
            color: var(--ink);
            transition: border .2s, box-shadow .2s;
        }

        .cta-form input:focus {
            border-color: var(--brand-2);
            box-shadow: 0 0 0 3px rgba(31, 77, 61, .13);
            outline: none;
        }

        .cta-form .btn {
            margin-top: 18px;
            width: 100%;
        }

        .cta-form .privacy-note {
            font-size: 12px;
            color: var(--muted);
            margin-top: 10px;
            text-align: center;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: #0a201a;
            color: #d2d8d1;
            padding-top: 64px;
            position: relative;
        }

        .footer-main {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1.5fr;
            gap: 42px;
            padding-bottom: 48px;
        }

        .footer-brand-text {
            font-size: 21px;
            font-weight: 800;
            color: #fff;
            letter-spacing: -.02em;
            margin-bottom: 12px;
        }

        .footer-about {
            font-size: 14px;
            line-height: 1.8;
            color: #9ca9a1;
            max-width: 34em;
        }

        .footer-title {
            font-size: 14px;
            color: #fff;
            font-weight: 700;
            margin-bottom: 18px;
        }

        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }

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

        .footer-links a,
        .footer-links span {
            color: #aab7ae;
            font-size: 14px;
            transition: color .2s;
        }

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

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, .1);
            padding-block: 16px;
            font-size: 13px;
            color: #8b9a91;
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1100px) {
            .cmd-search {
                min-width: 175px;
            }

            .main-nav {
                gap: 20px;
            }

            .version-item::before {
                left: 234px;
            }
        }

        @media (max-width: 900px) {
            .main-nav {
                display: none;
            }

            .cmd-search,
            .desktop-login {
                display: none !important;
            }

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

            .mobile-nav.is-open {
                display: flex;
            }

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

            .stat-list {
                grid-template-columns: 1fr 1fr;
                gap: 24px 0;
            }

            .stat-item:nth-child(3) {
                border-left: 0;
            }

            .version-item::before {
                display: none;
            }

            .version-item {
                grid-template-columns: 1fr;
                gap: 10px;
            }

            .version-num {
                text-align: left;
            }

            .version-num .ver {
                display: inline-block;
            }

            .release-grid,
            .feedback-grid,
            .cta-grid {
                grid-template-columns: 1fr;
                gap: 36px;
            }

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

        @media (max-width: 620px) {
            .header-inner {
                min-height: 64px;
                gap: 10px;
            }

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

            .brand-mark {
                width: 32px;
                height: 32px;
                border-radius: 8px;
                font-size: 12px;
            }

            .header-btn {
                padding: 10px 17px;
                font-size: 14px;
            }

            .cat-hero {
                padding-block: 52px 44px;
            }

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

            .section-pad,
            .release-feature,
            .changelog-section,
            .feedback-section,
            .bottom-cta {
                padding-block: 60px;
            }

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

            .version-panel {
                padding: 20px 20px 24px;
            }

            .version-head {
                align-items: flex-start;
            }

            .stat-list {
                grid-template-columns: 1fr;
                gap: 4px;
            }

            .stat-item,
            .stat-item:nth-child(3) {
                border-left: 0;
                border-top: 1px solid var(--line);
                padding-block: 14px;
            }

            .stat-item:first-child {
                border-top: 0;
            }

            .feedback-form {
                padding: 24px 20px;
            }

            .cta-form-inline {
                grid-template-columns: 1fr;
                gap: 0 0;
            }

            .footer-main {
                grid-template-columns: 1fr;
                gap: 34px;
                padding-bottom: 36px;
            }

            .faq-item summary {
                font-size: 15px;
                padding: 14px 14px;
            }

            .container {
                width: min(100% - 32px, 1280px);
            }
        }

/* roulang page: category3 */
:root {
  --pine: #0F3228;
  --moss: #1F4D3D;
  --paper: #F7F3EA;
  --surface: #FFFFFF;
  --ink: #161813;
  --muted: #5A5F58;
  --line: #E4DED2;
  --coral: #F25C3A;
  --amber: #C88A2D;
  --error: #C94131;
  --success: #1F7A5A;
  --dark-muted: #C8D1C9;
  --radius-card: 16px;
  --radius-input: 12px;
  --font-sans: -apple-system, BlinkMacSystemFont, "PingFang SC", "HarmonyOS Sans SC", "MiSans", "Noto Sans CJK SC", "Microsoft YaHei", sans-serif;
  --shadow-soft: 0 18px 55px rgba(22, 24, 19, 0.08);
}
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-sans);
  line-height: 1.8;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; }
.container {
  max-width: 1280px;
  margin-inline: auto;
  padding-left: clamp(20px, 3vw, 32px);
  padding-right: clamp(20px, 3vw, 32px);
}
.section { padding-block: clamp(56px, 8vw, 112px); }
::selection { background: rgba(242, 92, 58, 0.2); }
:focus-visible { outline: 2px solid var(--coral); outline-offset: 3px; border-radius: 6px; }

/* header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 60;
  background: rgba(247, 243, 234, 0.92);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(228, 222, 210, 0.9);
}
.header-inner {
  height: 76px;
  display: flex;
  align-items: center;
  gap: 24px;
}
.brand { display: inline-flex; align-items: center; gap: 10px; flex-shrink: 0; }
.brand-mark {
  width: 38px;
  height: 38px;
  flex: none;
  background: var(--pine);
  color: #fff;
  border-radius: 10px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 14px;
  letter-spacing: 0.4px;
}
.brand-text { font-size: 19px; font-weight: 800; color: var(--pine); letter-spacing: 0.2px; }
.main-nav { display: flex; align-items: center; gap: clamp(16px, 2.4vw, 34px); margin-left: 8px; }
.main-nav a {
  position: relative;
  font-size: 15px;
  color: #42463F;
  font-weight: 500;
  padding-block: 6px;
  white-space: nowrap;
  transition: color 0.2s ease;
}
.main-nav a:hover { color: var(--pine); }
.main-nav a.active { color: var(--ink); font-weight: 700; }
.main-nav a.active::after {
  content: "";
  width: 22px;
  height: 2px;
  background: var(--coral);
  border-radius: 2px;
  position: absolute;
  left: 0;
  bottom: -2px;
}
.header-actions { margin-left: auto; display: flex; align-items: center; gap: 10px; }
.cmd-search {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  height: 38px;
  padding-inline: 12px 10px;
  border: 1px solid var(--line);
  background: #fff;
  border-radius: 999px;
  color: var(--muted);
  font-size: 13px;
  width: 212px;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}
.cmd-search:hover { border-color: rgba(15, 50, 40, 0.45); box-shadow: 0 4px 14px rgba(22, 24, 19, 0.06); }
.cmd-search span { flex: 1; text-align: left; overflow: hidden; white-space: nowrap; text-overflow: ellipsis; }
.cmd-search kbd {
  border: 1px solid #D8D2C6;
  background: var(--paper);
  color: var(--muted);
  font-size: 11px;
  line-height: 1;
  border-radius: 5px;
  padding: 4px 5px;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border-radius: 999px;
  font-weight: 600;
  border: 1px solid transparent;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease, color 0.2s ease;
  white-space: nowrap;
}
.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(1px) scale(0.98); }
.btn-primary {
  background: var(--coral);
  color: #fff;
  padding: 9px 18px;
  font-size: 14px;
  box-shadow: 0 4px 12px rgba(242, 92, 58, 0.18);
}
.btn-primary:hover { background: #E6502E; box-shadow: 0 10px 24px rgba(242, 92, 58, 0.28); }
.btn-text { background: transparent; color: var(--muted); padding: 8px 8px; font-size: 14px; }
.btn-text:hover { color: var(--pine); background: rgba(15, 50, 40, 0.06); }
.btn-coral {
  background: var(--coral);
  color: #fff;
  padding: 12px 24px;
  font-size: 15px;
  box-shadow: 0 8px 22px rgba(242, 92, 58, 0.22);
}
.btn-coral:hover { background: #E6502E; box-shadow: 0 12px 30px rgba(242, 92, 58, 0.3); }
.btn-line-light {
  border: 1px solid rgba(255, 255, 255, 0.5);
  color: #fff;
  padding: 12px 24px;
  font-size: 15px;
  background: rgba(255, 255, 255, 0.04);
}
.btn-line-light:hover { background: rgba(255, 255, 255, 0.12); border-color: rgba(255, 255, 255, 0.8); }
.mobile-toggle {
  display: none;
  background: transparent;
  border: 0;
  color: var(--pine);
  padding: 6px;
}
.mobile-nav {
  display: none;
  padding: 14px 20px 20px;
  background: rgba(247, 243, 234, 0.98);
  border-top: 1px solid var(--line);
}
.mobile-nav.open { display: block; }
.mobile-nav a { display: block; padding: 12px 4px; font-size: 16px; font-weight: 600; color: var(--pine); border-bottom: 1px solid rgba(228, 222, 210, 0.5); }
.mobile-nav a:last-child { border-bottom: 0; }

/* hero */
.hero-case {
  background-color: var(--pine);
  color: #fff;
  position: relative;
  overflow: hidden;
  background-image: linear-gradient(105deg, rgba(11, 43, 34, 0.98) 0%, rgba(15, 50, 40, 0.88) 58%, rgba(31, 77, 61, 0.76) 100%), url('/assets/images/backpic/back-1.webp');
  background-size: cover;
  background-position: center;
}
.hero-case::before {
  content: "";
  position: absolute;
  width: 340px;
  height: 340px;
  right: -120px;
  bottom: -160px;
  background: rgba(242, 92, 58, 0.14);
  border-radius: 50%;
  filter: blur(72px);
}
.hero-inner {
  min-height: 620px;
  padding-block: 76px 88px;
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.72fr);
  gap: 52px;
  align-items: center;
  position: relative;
}
.hero-copy { position: relative; }
.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: #D8E0D9;
  letter-spacing: 0.14em;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 999px;
  padding: 6px 14px;
  margin-bottom: 22px;
}
.hero-tag i {
  width: 6px;
  height: 6px;
  background: var(--coral);
  border-radius: 50%;
  display: inline-block;
}
.hero-copy h1 {
  font-size: clamp(38px, 5.5vw, 66px);
  line-height: 1.12;
  font-weight: 800;
  margin: 0 0 20px;
  letter-spacing: -1px;
  text-wrap: balance;
}
.hero-lead {
  font-size: 17px;
  line-height: 1.9;
  color: var(--dark-muted);
  max-width: 640px;
  margin: 0 0 34px;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; }
.hero-panel {
  border: 1px solid rgba(200, 209, 201, 0.2);
  background: rgba(255, 255, 255, 0.06);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  border-radius: 20px;
  padding: 30px 26px;
}
.metric-brief { font-size: 13px; color: var(--dark-muted); letter-spacing: 0.06em; padding-left: 12px; border-left: 2px solid var(--coral); margin-bottom: 22px; }
.mini-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px 22px;
}
.mini-grid div { display: flex; flex-direction: column; }
.mini-grid strong {
  font-size: clamp(28px, 4vw, 42px);
  line-height: 1.1;
  font-weight: 800;
  color: #fff;
  font-variant-numeric: tabular-nums;
}
.mini-grid span { font-size: 13px; color: var(--dark-muted); margin-top: 4px; }
.hero-note { margin-top: 20px; padding-top: 16px; border-top: 1px solid rgba(200, 209, 201, 0.2); color: #B9C6BB; font-size: 13px; }

/* billboard */
.billboard { background: #fff; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.billboard-inner { display: grid; grid-template-columns: repeat(4, 1fr); }
.billboard-item { padding: 26px 28px; border-left: 1px solid var(--line); }
.billboard-item:first-child { border-left: 0; }
.billboard-item strong { display: block; font-size: 34px; font-weight: 800; color: var(--pine); font-variant-numeric: tabular-nums; line-height: 1.2; }
.billboard-item span { color: var(--muted); font-size: 14px; }

/* case focus */
.section-head { margin-bottom: 44px; }
.section-kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--coral);
  text-transform: uppercase;
}
.section-kicker::before { content: ""; width: 24px; height: 1px; background: var(--coral); }
.section-head h2 { font-size: clamp(28px, 4vw, 40px); line-height: 1.3; font-weight: 800; color: var(--pine); margin: 12px 0 10px; letter-spacing: -0.2px; }
.section-head p { color: var(--muted); max-width: 760px; font-size: 16px; }
.case-feature {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  gap: 44px;
  align-items: center;
  margin-bottom: 80px;
}
.case-feature-reverse .case-media { order: 2; }
.case-feature-reverse .case-copy { order: 1; }
.case-media {
  border-radius: 20px;
  background: #EFE8DA;
  overflow: hidden;
  aspect-ratio: 16 / 10;
  box-shadow: var(--shadow-soft);
}
.case-media img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
.case-media:hover img { transform: scale(1.03); }
.case-copy .tag {
  display: inline-flex;
  align-items: center;
  background: #F1E8D4;
  color: var(--pine);
  font-size: 12px;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 999px;
  margin-bottom: 14px;
  letter-spacing: 0.04em;
}
.case-copy h3 { font-size: clamp(22px, 3vw, 30px); font-weight: 800; line-height: 1.4; color: var(--ink); margin: 0 0 14px; }
.case-copy p { color: var(--muted); font-size: 16px; margin-bottom: 18px; }
.case-points { list-style: none; margin: 0 0 20px; padding: 0; }
.case-points li { position: relative; padding-left: 20px; color: var(--muted); margin: 0 0 8px; font-size: 15px; }
.case-points li::before { content: ""; position: absolute; left: 2px; top: 0.72em; width: 6px; height: 6px; background: var(--amber); border-radius: 50%; }
.case-data { display: grid; grid-template-columns: repeat(3, 1fr); border: 1px solid var(--line); border-radius: 14px; background: #fff; overflow: hidden; }
.case-data div { padding: 16px; border-left: 1px solid var(--line); }
.case-data div:first-child { border-left: 0; }
.case-data strong { display: block; font-size: 24px; font-weight: 800; color: var(--pine); font-variant-numeric: tabular-nums; line-height: 1.2; }
.case-data span { font-size: 13px; color: var(--muted); }
.case-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  color: var(--pine);
  margin-top: 20px;
  transition: gap 0.2s ease;
}
.case-link:hover { gap: 12px; }
.case-link svg { color: var(--coral); }

/* case list */
.case-list-section { background: #fff; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.case-row {
  display: grid;
  grid-template-columns: 150px minmax(0, 1fr) 170px 44px;
  gap: 24px;
  align-items: center;
  padding: 24px 6px;
  border-bottom: 1px solid var(--line);
  transition: background 0.2s ease, padding-left 0.25s ease;
}
.case-row:last-child { border-bottom: 0; }
.case-row:hover { background: rgba(247, 243, 234, 0.65); padding-left: 12px; }
.row-industry { font-size: 13px; color: var(--pine); background: #F1E8D4; display: inline-flex; justify-self: start; padding: 5px 10px; border-radius: 999px; font-weight: 700; }
.case-row-text h4 { font-size: 17px; font-weight: 750; color: var(--ink); line-height: 1.45; margin: 0 0 4px; }
.case-row-text p { color: var(--muted); font-size: 14px; margin: 0; overflow: hidden; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; }
.case-row-result { text-align: right; }
.case-row-result strong { display: block; font-size: 24px; font-weight: 800; color: var(--pine); letter-spacing: -0.3px; line-height: 1.3; font-variant-numeric: tabular-nums; }
.case-row-result span { font-size: 13px; color: var(--muted); }
.case-row-arrow {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1px solid var(--line);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--pine);
  transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
  justify-self: end;
}
.case-row:hover .case-row-arrow { background: var(--coral); border-color: var(--coral); color: #fff; }
.case-row-tip { margin-top: 22px; color: var(--muted); font-size: 13px; }

/* scenario */
.scenario-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.scenario-cell {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 30px 28px;
  transition: box-shadow 0.25s ease, transform 0.25s ease, border-color 0.25s ease;
}
.scenario-cell:hover { box-shadow: var(--shadow-soft); border-color: rgba(15, 50, 40, 0.25); transform: translateY(-4px); }
.scenario-cell .num { font-size: 40px; font-weight: 800; color: #EFE8DA; line-height: 1; display: block; margin-bottom: 20px; font-variant-numeric: tabular-nums; }
.scenario-cell h3 { color: var(--pine); font-size: 19px; font-weight: 750; margin: 0 0 12px; }
.scenario-cell p { color: var(--muted); margin: 0; font-size: 15px; }

/* process */
.process-bg { background: #EFE8DA; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.process-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; border: 1px solid var(--line); border-radius: 18px; overflow: hidden; background: #fff; }
.process-step { padding: 26px 22px; border-left: 1px solid var(--line); background: #fff; }
.process-step:first-child { border-left: 0; }
.process-step .step-label { font-size: 13px; color: var(--coral); font-weight: 700; letter-spacing: 0.07em; }
.process-step h3 { font-size: 16px; color: var(--pine); margin: 6px 0 8px; font-weight: 750; }
.process-step p { font-size: 14px; color: var(--muted); margin: 0; line-height: 1.7; }

/* faq */
.faq-wrap { max-width: 910px; }
.faq-item { border-bottom: 1px solid var(--line); }
.faq-item:first-of-type { border-top: 1px solid var(--line); }
.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  background: transparent;
  border: 0;
  text-align: left;
  padding: 22px 4px;
  font-size: 17px;
  font-weight: 650;
  color: var(--ink);
}
.faq-question:hover { color: var(--pine); }
.faq-icon { position: relative; flex: none; width: 22px; height: 22px; border-radius: 50%; border: 1px solid var(--line); background: #fff; transition: transform 0.3s ease, background 0.2s ease; }
.faq-icon::before, .faq-icon::after { content: ""; position: absolute; left: 50%; top: 50%; width: 10px; height: 1.5px; background: var(--pine); transform: translate(-50%, -50%); }
.faq-icon::after { transform: translate(-50%, -50%) rotate(90deg); }
.faq-item.open .faq-icon { background: var(--coral); border-color: var(--coral); transform: rotate(135deg); }
.faq-item.open .faq-icon::before, .faq-item.open .faq-icon::after { background: #fff; }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height 0.4s ease, padding 0.3s ease; padding: 0 36px 0 4px; }
.faq-item.open .faq-answer { max-height: 260px; padding-bottom: 22px; }
.faq-answer p { color: var(--muted); margin: 0; font-size: 15px; }

/* CTA */
.cta-band {
  background: var(--pine);
  color: #fff;
  position: relative;
  overflow: hidden;
}
.cta-band::after {
  content: "";
  position: absolute;
  width: 440px;
  height: 440px;
  border-radius: 50%;
  background: rgba(242, 92, 58, 0.18);
  filter: blur(70px);
  bottom: -220px;
  left: 40%;
}
.cta-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
  gap: 64px;
  align-items: start;
  position: relative;
  z-index: 1;
}
.cta-title { font-size: clamp(28px, 4vw, 42px); font-weight: 800; margin: 14px 0 16px; line-height: 1.3; }
.cta-copy { color: var(--dark-muted); margin: 0 0 26px; }
.cta-points { list-style: none; margin: 0; padding: 0; }
.cta-points li { padding-left: 28px; position: relative; color: #D6E2D8; margin-bottom: 10px; font-size: 15px; }
.cta-points li::before { content: "✓"; position: absolute; left: 0; top: 0; color: var(--coral); font-weight: 800; }
.cta-card {
  background: #fff;
  border-radius: 22px;
  padding: 30px;
  color: var(--ink);
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.16);
}
.form-title { font-size: 20px; font-weight: 800; color: var(--pine); margin: 0 0 4px; }
.form-sub { color: var(--muted); font-size: 14px; margin: 0 0 22px; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.form-field { display: flex; flex-direction: column; gap: 6px; margin-bottom: 14px; }
.form-field.full { grid-column: 1 / -1; }
.form-label { font-size: 14px; font-weight: 650; color: var(--ink); }
.form-input, .form-select {
  height: 42px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: #FAF7F0;
  padding-inline: 12px;
  color: var(--ink);
  font-size: 14px;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}
.form-input:focus, .form-select:focus { outline: none; border-color: var(--pine); box-shadow: 0 0 0 3px rgba(15, 50, 40, 0.08); background: #fff; }
.form-input::placeholder { color: #A9ACA5; }
.form-note { font-size: 12px; color: var(--muted); margin: 8px 2px 16px; }
.submit-btn { width: 100%; justify-content: center; padding: 13px 20px; font-size: 15px; }
.submit-btn:disabled { opacity: 0.7; cursor: wait; transform: none; }

/* footer */
.site-footer { background: #0A2921; color: #C8D1C9; border-top: 1px solid #1B4A38; }
.footer-main {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.3fr;
  gap: clamp(30px, 5vw, 64px);
  padding-block: 52px 40px;
}
.footer-brand-text { font-size: 21px; font-weight: 800; color: #fff; letter-spacing: 0.2px; margin-bottom: 12px; }
.footer-about { font-size: 14px; line-height: 1.9; color: var(--dark-muted); max-width: 320px; margin: 0; }
.footer-title { font-size: 14px; font-weight: 700; color: #fff; margin-bottom: 16px; letter-spacing: 0.05em; }
.footer-links { list-style: none; margin: 0; padding: 0; }
.footer-links li { margin-bottom: 8px; font-size: 14px; }
.footer-links a { color: var(--dark-muted); transition: color 0.2s ease; }
.footer-links a:hover { color: #fff; }
.footer-bottom { border-top: 1px solid rgba(200, 209, 201, 0.14); padding: 16px 0; font-size: 13px; color: #90A397; }

@media (max-width: 1100px) {
  .cmd-search { width: 42px; padding-inline: 0; justify-content: center; }
  .cmd-search span, .cmd-search kbd { display: none; }
  .main-nav { gap: 18px; }
}
@media (max-width: 980px) {
  .main-nav { display: none; }
  .mobile-toggle { display: inline-flex; }
  .desktop-login { display: none; }
  .hero-inner { grid-template-columns: 1fr; min-height: auto; padding-block: 60px 70px; }
  .hero-panel { max-width: 620px; }
  .case-feature { grid-template-columns: 1fr; gap: 28px; margin-bottom: 60px; }
  .case-feature-reverse .case-media { order: 0; }
  .case-feature-reverse .case-copy { order: 0; }
  .scenario-grid { grid-template-columns: 1fr 1fr; }
  .process-grid { grid-template-columns: 1fr 1fr; }
  .process-step:nth-child(3) { border-left: 0; border-top: 1px solid var(--line); }
  .process-step:nth-child(2) { border-top: 1px solid var(--line); }
  .process-step:nth-child(4) { border-top: 1px solid var(--line); }
  .process-step:nth-child(3), .process-step:nth-child(4) { border-left: 1px solid var(--line); }
  .footer-main { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 760px) {
  .header-inner { height: 64px; gap: 12px; }
  .brand-text { font-size: 17px; }
  .header-actions .header-btn { display: none; }
  .mobile-toggle { display: inline-flex; }
  .btn-primary { padding: 8px 14px; }
  .billboard-inner { grid-template-columns: 1fr 1fr; }
  .billboard-item { padding: 20px 18px; border-left: 0; border-top: 1px solid var(--line); }
  .billboard-item:nth-child(odd) { border-right: 1px solid var(--line); }
  .billboard-item:nth-child(1), .billboard-item:nth-child(2) { border-top: 0; }
  .billboard-item:first-child { border-left: 1px solid var(--line); }
  .billboard-item:nth-child(2) { border-left: 1px solid var(--line); }
  .case-list-section .container { padding-left: 12px; padding-right: 12px; }
  .case-row { grid-template-columns: 1fr 1fr; padding: 20px 12px; }
  .row-industry { justify-self: start; }
  .case-row-text { grid-column: 1 / -1; }
  .case-row-result { text-align: left; }
  .case-row-arrow { justify-self: end; }
  .scenario-grid { grid-template-columns: 1fr; }
  .process-grid { grid-template-columns: 1fr; }
  .process-step { border-left: 0; border-top: 1px solid var(--line); }
  .process-step:first-child { border-top: 0; }
  .process-step:nth-child(3) { border-left: 0; }
  .process-step:nth-child(4) { border-left: 0; }
  .cta-grid { grid-template-columns: 1fr; gap: 36px; }
  .form-grid { grid-template-columns: 1fr; }
  .footer-main { grid-template-columns: 1fr; padding-block: 40px 24px; gap: 28px; }
  .faq-item.open .faq-answer { max-height: 320px; }
}
@media (max-width: 520px) {
  .hero-inner { padding: 46px 0 56px; }
  .hero-lead { font-size: 16px; }
  .mini-grid { grid-template-columns: 1fr 1fr; }
  .billboard-inner { grid-template-columns: 1fr; }
  .billboard-item, .billboard-item:nth-child(odd), .billboard-item:nth-child(2) { border-left: 0; border-right: 0; border-top: 1px solid var(--line); }
  .billboard-item:first-child { border-top: 0; }
  .case-data { grid-template-columns: 1fr 1fr; }
  .case-data div { border-top: 1px solid var(--line); }
  .case-data div:first-child, .case-data div:nth-child(2) { border-top: 0; }
  .case-data div:nth-child(3) { grid-column: 1 / -1; border-left: 0; }
  .form-title { font-size: 19px; }
  .cta-card { padding: 20px; }
  .footer-main { grid-template-columns: 1fr; }
}

/* roulang page: category4 */
:root{
  --primary:#0F3228;
  --green:#1F4D3D;
  --paper:#F7F3EA;
  --surface:#FFFFFF;
  --text:#161813;
  --muted:#5A5F58;
  --line:#E4DED2;
  --accent:#F25C3A;
  --amber:#C88A2D;
  --error:#C94131;
  --success:#1F7A5A;
  --deep-muted:#C8D1C9;
  --radius:16px;
  --shadow-warm:0 18px 44px rgba(22,24,19,0.08);
  --shadow-soft:0 6px 18px rgba(22,24,19,0.05);
}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--paper);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans SC","MiSans","Noto Sans CJK SC","Microsoft YaHei",-apple-system,BlinkMacSystemFont,sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
*,*::before,*::after{box-sizing:border-box}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
button{font:inherit;cursor:pointer;border:0;background:none}
input{font:inherit}
ul,ol{margin:0;padding:0}
.container{max-width:1280px;margin:0 auto;padding-left:32px;padding-right:32px}
.container-narrow{max-width:980px;margin:0 auto;padding-left:32px;padding-right:32px}
.visually-hidden{position:absolute !important;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:1px solid transparent;border-radius:999px;font-weight:700;line-height:1.25;padding:12px 24px;transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease,background .18s ease;text-align:center;white-space:nowrap}
.btn:focus-visible{outline:3px solid rgba(242,92,58,.45);outline-offset:3px}
.btn-primary{background:var(--accent);color:#fff}
.btn-primary:hover{background:#e34a26;transform:translateY(-2px);box-shadow:0 8px 22px rgba(242,92,58,.28)}
.btn-primary:active{transform:translateY(0) scale(.98)}
.btn-dark{background:var(--primary);color:#fff}
.btn-dark:hover{background:#1a4436;transform:translateY(-2px);box-shadow:0 10px 22px rgba(15,50,40,.22)}
.btn-ghost-light{border-color:rgba(255,255,255,.58);color:#fff;background:rgba(255,255,255,.05)}
.btn-ghost-light:hover{border-color:#fff;background:rgba(255,255,255,.14)}
.btn-outline{border-color:var(--primary);color:var(--primary);background:transparent}
.btn-outline:hover{background:var(--primary);color:#fff}
.btn-lg{padding:15px 32px;font-size:16px}
.arrow-link{display:inline-flex;align-items:center;gap:6px;font-weight:700;color:var(--primary);transition:gap .2s ease}
.arrow-link:hover{gap:11px;color:var(--accent)}

/* header */
.site-header{position:fixed;top:0;left:0;right:0;z-index:60;background:rgba(247,243,234,.92);backdrop-filter:blur(14px);border-bottom:1px solid transparent;transition:border-color .25s,box-shadow .25s;height:76px}
body.is-scrolled .site-header{border-bottom:1px solid var(--line);box-shadow:0 6px 18px rgba(24,25,20,.05)}
.header-inner{height:76px;display:flex;align-items:center;gap:24px}
.brand{display:inline-flex;align-items:center;gap:12px;flex-shrink:0}
.brand-mark{display:inline-grid;place-items:center;width:42px;height:42px;border-radius:11px;background:var(--primary);color:#fff;font-weight:800;font-size:17px;letter-spacing:.5px}
.brand-text{font-size:19px;font-weight:800;color:var(--primary);letter-spacing:.5px}
.main-nav{display:flex;align-items:center;gap:6px;margin:0 auto}
.main-nav a{position:relative;padding:12px 15px;color:var(--muted);font-weight:600;border-radius:8px;transition:color .18s}
.main-nav a:hover{color:var(--text)}
.main-nav a.active{color:var(--text);font-weight:700}
.main-nav a.active::after{content:"";position:absolute;left:50%;transform:translateX(-50%);bottom:2px;width:20px;height:3px;border-radius:2px;background:var(--accent)}
.header-actions{display:flex;align-items:center;gap:10px;flex-shrink:0}
.cmd-search{display:inline-flex;align-items:center;gap:8px;width:210px;background:#fff;border:1px solid var(--line);border-radius:11px;padding:9px 12px;color:var(--muted);font-size:14px;transition:border-color .18s,box-shadow .18s}
.cmd-search:hover{border-color:var(--primary);box-shadow:0 0 0 2px rgba(15,50,40,.08)}
.cmd-search span{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis}
.cmd-search kbd{font-family:inherit;font-size:12px;border:1px solid var(--line);border-bottom-width:2px;border-radius:5px;padding:1px 6px;background:var(--paper);color:var(--muted)}
.btn-text{padding:9px 12px;font-weight:700;color:var(--muted)}
.btn-text:hover{color:var(--primary)}
.header-btn{padding:10px 22px}
.mobile-toggle{display:none;align-items:center;justify-content:center;width:40px;height:40px;border:1px solid var(--line);border-radius:10px;background:#fff;color:var(--primary)}
.mobile-nav{display:none;flex-direction:column;gap:4px;padding:18px 24px 24px;background:#fff;border-bottom:1px solid var(--line)}
.mobile-nav a{padding:12px 10px;border-radius:10px;font-weight:600;color:var(--primary)}
.mobile-nav a.active{background:#edf1e8;color:var(--primary);font-weight:800}
.mobile-nav.open{display:flex}

/* page hero */
.help-hero{position:relative;padding:152px 0 78px;background:linear-gradient(100deg,rgba(9,35,27,.94),rgba(15,50,40,.82) 58%,rgba(31,77,61,.76)),url('/assets/images/backpic/back-1.webp') center/cover no-repeat;color:#fff;overflow:hidden}
.help-hero::after{content:"";position:absolute;right:-80px;bottom:-180px;width:420px;height:420px;border:60px solid rgba(200,138,45,.13);border-radius:50%}
.help-hero .container{position:relative;z-index:2}
.hero-kicker{display:inline-flex;align-items:center;gap:8px;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.18);padding:7px 16px;border-radius:999px;font-size:14px;font-weight:600;color:var(--deep-muted);letter-spacing:.5px;margin-bottom:24px}
.hero-kicker::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--accent)}
.help-hero h1{font-size:clamp(36px,5.2vw,58px);line-height:1.16;font-weight:800;letter-spacing:0;margin:0 0 20px}
.hero-lead{max-width:760px;font-size:18px;line-height:1.9;color:var(--deep-muted);margin:0 0 32px}
.help-search{display:flex;align-items:center;gap:14px;background:#fff;border-radius:14px;padding:6px;max-width:680px;box-shadow:0 14px 34px rgba(0,0,0,.18)}
.help-search .search-icon{margin-left:14px;color:var(--muted);flex-shrink:0}
.help-search input{flex:1;min-width:0;border:none;outline:none;background:transparent;color:var(--text);font-size:16px;padding:8px 4px}
.help-search input::placeholder{color:#8a8f86}
.help-search .btn{flex-shrink:0;background:var(--accent);color:#fff}
.help-search .btn:hover{background:#e34a26}

/* quick support cards */
.support-section{padding:86px 0 30px}
.section-head{max-width:720px;margin-bottom:40px}
.section-eyebrow{display:block;color:var(--accent);font-size:14px;font-weight:800;letter-spacing:1.5px;margin-bottom:12px}
.section-head h2{font-size:clamp(28px,3.6vw,40px);line-height:1.25;margin:0;color:var(--primary);font-weight:800}
.section-head p{color:var(--muted);margin:14px 0 0}
.card-support-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:22px}
.support-card{background:#fff;border:1px solid var(--line);border-radius:18px;overflow:hidden;box-shadow:var(--shadow-soft);transition:transform .25s,border-color .25s,box-shadow .25s;min-width:0}
.support-card:hover{transform:translateY(-5px);border-color:var(--primary);box-shadow:var(--shadow-warm)}
.support-card__media{position:relative;aspect-ratio:16/10;background:var(--paper)}
.support-card__media img{width:100%;height:100%;object-fit:cover}
.support-card__media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 40%,rgba(15,50,40,.1))}
.support-card__body{padding:26px 28px 28px;display:flex;flex-direction:column;flex:1}
.support-card__tag{display:inline-flex;width:fit-content;font-size:12px;font-weight:700;color:var(--green);background:#F1E8D4;border-radius:999px;padding:4px 12px;margin-bottom:14px;letter-spacing:.3px}
.support-card__body h3{font-size:22px;line-height:1.4;color:var(--text);font-weight:800;margin:0 0 12px}
.support-card__body p{color:var(--muted);font-size:15px;line-height:1.85;margin:0 0 20px;flex:1}
.support-card--span7{grid-column:span 7}
.support-card--span5{grid-column:span 5}
.support-card--span5 .support-card__media{aspect-ratio:16/8}

/* help center */
.help-center-section{padding:76px 0 92px;background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.help-layout{display:grid;grid-template-columns:286px minmax(0,1fr);gap:52px;align-items:start}
.help-toc{position:sticky;top:112px;background:#FBF8F1;border:1px solid var(--line);border-radius:18px;padding:26px 22px;transition:box-shadow .25s}
.help-toc:hover{box-shadow:var(--shadow-warm)}
.help-toc .toc-label{display:block;font-size:13px;font-weight:800;letter-spacing:1px;color:var(--muted);margin-bottom:14px}
.help-toc ul{list-style:none}
.help-toc li{margin:0}
.help-toc a{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:12px 12px;border-radius:11px;color:var(--muted);font-weight:600;border-left:3px solid transparent;transition:background .15s,color .15s,border-color .15s}
.help-toc a:hover{background:#ffffff;color:var(--primary)}
.help-toc a sup{color:var(--amber);font-weight:800;font-size:11px}
.help-toc-contact{margin-top:22px;padding:20px 16px;background:var(--primary);border-radius:14px;color:#fff}
.help-toc-contact strong{display:block;font-size:16px;margin-bottom:8px}
.help-toc-contact p{margin:0;font-size:13px;line-height:1.7;color:var(--deep-muted)}
.help-toc-contact b{color:#fff}
.help-group{margin-bottom:60px}
.help-group__head{display:flex;align-items:center;gap:14px;padding-top:4px;border-bottom:2px solid var(--primary);padding-bottom:14px;margin-bottom:22px}
.help-group__num{font-size:28px;font-weight:800;color:var(--accent);line-height:1;opacity:.9}
.help-group__head h2{font-size:24px;margin:0;color:var(--primary);font-weight:800}
.help-group__count{margin-left:auto;font-size:12px;color:var(--muted);background:#fff;border:1px solid var(--line);border-radius:999px;padding:3px 12px}
.help-item{border:1px solid var(--line);border-radius:13px;overflow:hidden;background:#fff;margin-bottom:12px;box-shadow:var(--shadow-soft);transition:border-color .18s,box-shadow .18s}
.help-item[open]{border-color:var(--primary);box-shadow:0 8px 20px rgba(15,50,40,.08)}
.help-item summary{list-style:none;display:flex;align-items:center;justify-content:space-between;gap:18px;padding:19px 22px;cursor:pointer;font-weight:700;color:var(--text);background:#fff;transition:background .18s}
.help-item summary::-webkit-details-marker{display:none}
.help-item summary:hover{background:#F9F7F0}
.help-item summary::after{content:"+";font-size:24px;font-weight:400;color:var(--green);transition:transform .18s}
.help-item[open] summary{color:var(--primary)}
.help-item[open] summary::after{transform:rotate(45deg);color:var(--accent)}
.help-answer{padding:2px 24px 24px;border-top:1px dashed var(--line);color:var(--muted);font-size:15px;line-height:1.95}
.help-answer p{margin:18px 0 0}
.help-answer a{color:var(--green);font-weight:700;border-bottom:1px solid rgba(31,77,61,.3)}
.help-answer a:hover{border-color:var(--accent);color:var(--accent)}
.help-item.highlight{border-color:var(--accent);box-shadow:0 0 0 3px rgba(242,92,58,.14)}

/* process */
.process-section{padding:94px 0;background:var(--paper)}
.process-section .section-head{max-width:720px}
.process-list{list-style:none;display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin-top:22px}
.process-step{position:relative;background:#fff;border:1px solid var(--line);border-radius:18px;padding:28px 24px 26px;transition:transform .2s,border-color .2s;counter-increment:step}
.process-step::before{content:"";position:absolute;top:34px;right:-14px;width:26px;height:2px;background:var(--line);display:none}
.process-step:not(:last-child)::before{display:block}
.process-step:hover{transform:translateY(-4px);border-color:var(--primary)}
.step-num{font-size:32px;line-height:1;font-weight:800;color:var(--accent);margin-bottom:14px;letter-spacing:-1px}
.process-step h3{font-size:18px;margin:0 0 10px;color:var(--text)}
.process-step p{font-size:14px;color:var(--muted);margin:0;line-height:1.85}
.process-note{margin-top:36px;padding:18px 24px;background:#FFF7E8;border:1px solid #EBD9AF;border-radius:14px;color:var(--green);font-size:14px;line-height:1.8}
.process-note b{font-weight:700}

/* contact */
.contact-section{padding:88px 0;background:#fff;border-bottom:1px solid var(--line)}
.contact-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.contact-tile{background:#FBF8F1;border:1px solid var(--line);border-radius:18px;padding:32px 28px;text-align:center;transition:transform .2s,border-color .2s}
.contact-tile:hover{transform:translateY(-3px);border-color:var(--green)}
.contact-tile__icon{width:48px;height:48px;margin:0 auto 16px;border-radius:14px;background:var(--primary);color:#fff;display:grid;place-items:center}
.contact-tile__label{display:block;font-size:14px;color:var(--muted);font-weight:600;margin-bottom:8px}
.contact-tile__value{font-size:21px;font-weight:800;color:var(--primary);line-height:1.3}
.contact-tile small{display:block;margin-top:10px;color:var(--muted);font-size:13px;line-height:1.6}

/* bottom cta */
.cta-section{background:#0f3228;padding:0}
.cta-section .cta-card{position:relative;overflow:hidden;background:linear-gradient(110deg,rgba(9,35,27,.96),rgba(15,50,40,.88)),url('/assets/images/backpic/back-3.webp') center/cover no-repeat;color:#fff;padding:84px 60px;border-radius:0}
.cta-section .cta-inner{display:flex;align-items:flex-start;justify-content:space-between;gap:40px}
.cta-section h2{font-size:clamp(26px,3.6vw,42px);line-height:1.2;margin:0 0 16px;font-weight:800}
.cta-section p{max-width:650px;color:var(--deep-muted);font-size:16px;line-height:1.9;margin:0}
.cta-actions{display:flex;gap:16px;flex-shrink:0;align-items:center;flex-wrap:wrap}
.cta-actions .btn-secondary{background:#fff;color:var(--primary)}
.cta-actions .btn-secondary:hover{background:#F1E8D4;transform:translateY(-2px)}

/* footer */
.site-footer{background:#fff;border-top:2px solid var(--line);padding-top:72px}
.footer-main{display:grid;grid-template-columns:2.2fr 1fr 1fr 1.4fr;gap:36px;padding-bottom:50px}
.footer-brand-text{font-size:20px;font-weight:800;color:var(--primary);margin-bottom:14px}
.footer-about{font-size:14px;line-height:1.9;color:var(--muted);max-width:300px;margin:0}
.footer-title{font-size:14px;font-weight:800;color:var(--text);margin-bottom:16px;letter-spacing:.3px}
.footer-links{list-style:none;display:flex;flex-direction:column;gap:10px}
.footer-links a{font-size:14px;color:var(--muted);transition:color .16s}
.footer-links a:hover{color:var(--accent)}
.footer-links span{font-size:14px;color:var(--muted);line-height:1.8}
.footer-bottom{border-top:1px solid var(--line);padding:20px 0;background:var(--paper);color:var(--muted);font-size:13px}
@media (max-width:1023px){
  .container{padding-left:24px;padding-right:24px}
  .main-nav{display:none}
  .cmd-search{display:none}
  .desktop-login{display:none}
  .mobile-toggle{display:inline-flex}
  .header-actions{gap:6px}
  .card-support-grid{gap:18px}
  .help-layout{grid-template-columns:220px minmax(0,1fr);gap:30px}
  .process-list{grid-template-columns:repeat(2,1fr);gap:18px}
  .process-step:not(:last-child)::before{display:none}
  .contact-grid{grid-template-columns:repeat(2,1fr)}
  .cta-section .cta-inner{flex-direction:column}
  .cta-section .cta-card{padding:56px 28px;border-radius:0}
}
@media (max-width:767px){
  body{font-size:15px}
  .container{padding-left:20px;padding-right:20px}
  .container-narrow{padding-left:20px;padding-right:20px}
  .help-hero{padding:136px 0 60px}
  .help-hero h1{font-size:34px;line-height:1.25}
  .hero-lead{font-size:16px;line-height:1.85}
  .help-search{flex-direction:column;align-items:stretch;padding:16px;gap:12px;border-radius:15px}
  .help-search input{width:100%;padding:8px 0}
  .help-search .btn{width:100%}
  .search-icon{display:none}
  .support-section{padding:64px 0 22px}
  .card-support-grid{grid-template-columns:1fr}
  .support-card--span7,.support-card--span5{grid-column:1}
  .section-head h2{font-size:29px;line-height:1.3}
  .help-center-section{padding:58px 0 70px}
  .help-layout{grid-template-columns:1fr;gap:42px}
  .help-toc{position:static;overflow-x:auto;padding:22px}
  .help-toc ul{display:flex;flex-wrap:wrap;gap:6px}
  .help-toc li{flex:0 0 auto}
  .help-toc a{white-space:nowrap;padding:7px 12px;border:1px solid var(--line);border-radius:999px;background:#fff}
  .help-toc-contact{display:none}
  .help-item summary{font-size:15px;line-height:1.5;padding:18px 18px}
  .help-answer{padding:14px 18px 20px}
  .process-section{padding:72px 0}
  .process-list{grid-template-columns:1fr}
  .contact-section{padding:64px 0}
  .contact-grid{grid-template-columns:1fr}
  .footer-main{grid-template-columns:1fr;gap:28px;padding-bottom:40px}
  .footer-brand-text{margin-bottom:8px}
  .footer-about{max-width:100%}
}