/* roulang page: index */
:root {
  --ink-deep:#0B3B3A;
  --ink-teal:#0F4C4A;
  --amber:#D99A3C;
  --coral:#F06449;
  --paper:#F7F4EE;
  --card:#FFFFFF;
  --sand:#EDE8DF;
  --ink-soft:#23403F;
  --muted:#64746F;
  --line:#D9D6CE;
  --radius-lg:24px;
  --radius-md:16px;
  --radius-sm:8px;
  --shadow-card:0 2px 10px rgba(11,59,58,0.05);
  --shadow-hover:0 16px 30px rgba(11,59,58,0.12);
  --container:1200px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin:0;
  font-family: "PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  background: var(--paper);
  color: var(--ink-soft);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
a { color:inherit; text-decoration:none; }
img { max-width:100%; display:block; }
button { font-family:inherit; border:none; background:none; cursor:pointer; }
.container { width:100%; max-width:var(--container); margin:0 auto; padding:0 24px; }
section { position:relative; }
.ellipsis-2 {
  display:-webkit-box; -webkit-line-clamp:2; -webkit-box-orient:vertical;
  overflow:hidden;
}
.ellipsis-3 {
  display:-webkit-box; -webkit-line-clamp:3; -webkit-box-orient:vertical;
  overflow:hidden;
}
.btn {
  display:inline-flex; align-items:center; justify-content:center; gap:.5rem;
  border-radius:8px; padding:.72rem 1.4rem; font-weight:600;
  transition:background .2s, transform .2s, box-shadow .2s, color .2s, border-color .2s;
  border:1px solid transparent; white-space:nowrap;
  font-size:.95rem;
}
.btn-primary { background:var(--coral); color:#fff; }
.btn-primary:hover { background:#D9543E; transform:translateY(-1px); box-shadow:0 8px 16px rgba(240,100,73,.28); }
.btn-primary:active { transform:translateY(0); }
.btn-light-line { border-color:rgba(255,255,255,.35); color:#fff; }
.btn-light-line:hover { background:rgba(255,255,255,.08); border-color:var(--amber); color:var(--amber); }
.btn-dark { background:var(--ink-deep); color:#fff; }
.btn-dark:hover { background:#0f4c4a; box-shadow:0 8px 18px rgba(11,59,58,.18); }
.btn-amber { background:var(--amber); color:var(--ink-deep); }
.btn-amber:hover { background:#c98a30; transform:translateY(-1px); box-shadow:0 8px 16px rgba(217,154,60,.3); }
a:focus-visible, button:focus-visible, input:focus-visible {
  outline:3px solid rgba(240,100,73,.45);
  outline-offset:2px;
  border-radius:6px;
}
.site-header {
  position:sticky; top:0; z-index:100;
  background:var(--ink-deep);
  transition:background .3s, box-shadow .3s;
}
.site-header.scrolled {
  background:rgba(11,59,58,.96);
  box-shadow:0 6px 20px rgba(0,0,0,.18);
}
.nav-wrap {
  display:flex; align-items:center; justify-content:space-between;
  height:64px; gap:20px;
}
.nav-left {
  display:flex; align-items:center; gap:34px; min-width:0;
}
.logo {
  display:flex; align-items:center; gap:10px; flex-shrink:0;
}
.logo-symbol {
  width:34px; height:34px; border-radius:10px; background:var(--coral);
  color:#fff; display:grid; place-items:center; font-weight:900; font-size:1.05rem;
  letter-spacing:0;
}
.logo-word {
  color:rgba(255,255,255,.96); font-weight:700; font-size:1.2rem;
  letter-spacing:.02em; white-space:nowrap;
}
.main-nav {
  display:flex; align-items:center; gap:2px;
}
.main-nav .nav-link {
  color:rgba(234,243,239,.85);
  font-size:.95rem; line-height:1.4;
  padding:9px 12px; border-radius:8px;
  position:relative;
  transition:color .2s;
}
.main-nav .nav-link:hover { color:var(--amber); }
.main-nav .nav-link.active {
  color:#fff; font-weight:600;
}
.main-nav .nav-link.active::after {
  content:"";
  position:absolute; left:12px; right:12px; bottom:0;
  height:2px; border-radius:2px;
  background:var(--amber);
}
.nav-right {
  display:flex; align-items:center; gap:8px; flex-shrink:0;
}
.search-link {
  width:40px; height:40px; display:inline-flex;
  align-items:center; justify-content:center;
  color:rgba(234,243,239,.85); border-radius:10px;
  transition:color .2s, background .2s;
}
.search-link:hover { color:var(--amber); background:rgba(255,255,255,.08); }
.header-cta {
  padding:.55rem 1.05rem; font-size:.9rem;
}
.nav-toggle {
  display:none; width:40px; height:40px; align-items:center; justify-content:center;
  color:#fff; border-radius:10px;
}
.nav-toggle:hover { background:rgba(255,255,255,.08); }
.mobile-menu {
  position:fixed; inset:0; z-index:80; background:var(--ink-deep);
  display:flex; align-items:flex-start; justify-content:center;
  pointer-events:none; opacity:0; visibility:hidden;
  transition:opacity .28s ease, visibility .28s ease;
}
.mobile-menu.open { pointer-events:auto; opacity:1; visibility:visible; }
.mobile-menu-panel {
  width:100%; max-width:480px; margin:0 auto;
  padding:100px 32px 40px;
}
.mobile-menu .nav-link {
  display:block;
  color:rgba(234,243,239,.9);
  font-size:1.15rem;
  padding:14px 12px;
  border-bottom:1px solid rgba(255,255,255,.08);
  transition:color .2s;
}
.mobile-menu .nav-link:hover { color:var(--amber); }
.mobile-menu .nav-link.active { color:var(--amber); font-weight:600; }
.mobile-menu .btn { margin-top:24px; width:100%; }
.hero {
  background:var(--ink-deep);
  color:#EAF3EF;
  overflow:hidden;
}
.hero-bg {
  position:absolute; inset:0;
  background:
    radial-gradient(circle at 12% 20%, rgba(217,154,60,.14), transparent 34%),
    radial-gradient(circle at 78% 78%, rgba(15,76,74,.6), transparent 50%),
    linear-gradient(120deg, #0B3B3A 0%, #14524D 100%);
}
.hero-pattern {
  position:absolute; inset:0;
  background-image:radial-gradient(rgba(255,255,255,.08) 1px, transparent 1px);
  background-size:20px 20px;
  opacity:.3;
}
.hero-copy { animation:heroIn .6s ease both; }
@keyframes heroIn {
  from { opacity:0; transform:translateY(16px); }
  to { opacity:1; transform:translateY(0); }
}
.eyebrow {
  display:inline-flex; align-items:center; gap:8px;
  background:rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.14);
  color:var(--amber);
  border-radius:999px;
  padding:6px 14px;
  font-size:.82rem;
  letter-spacing:.06em;
}
.hero-title {
  font-size:clamp(2.5rem, 6vw, 4.5rem);
  line-height:1.1;
  letter-spacing:-.02em;
  font-weight:800;
  margin:22px 0 16px;
  color:#fff;
}
.hero-title-sub {
  display:block;
  font-size:.48em;
  font-weight:600;
  letter-spacing:.02em;
  color:var(--amber);
  margin-top:12px;
}
.hero-sub {
  max-width:560px;
  font-size:17px;
  line-height:1.85;
  color:#C7D6D3;
  margin:0 0 28px;
}
.hero-actions {
  display:flex; align-items:center; gap:12px; flex-wrap:wrap;
  margin-bottom:34px;
}
.hero-text-link {
  color:#EAF3EF;
  border-bottom:1px solid rgba(255,255,255,.3);
  padding:2px 0;
  transition:color .2s,border-color .2s;
}
.hero-text-link:hover { color:var(--amber); border-color:var(--amber); }
.hero-statline {
  display:flex; flex-wrap:wrap; gap:10px 28px;
  color:#BFD6D1; font-size:.9rem;
  padding-top:22px;
  border-top:1px solid rgba(255,255,255,.12);
}
.hero-statline strong { color:#fff; font-weight:600; }
.hero-visual {
  position:relative;
  border-radius:24px;
  overflow:hidden;
  min-height:300px;
  height:100%;
  box-shadow:0 24px 50px rgba(0,0,0,.28);
}
.hero-visual img {
  width:100%; height:100%; object-fit:cover;
}
.hero-visual-overlay {
  position:absolute; inset:0;
  background:linear-gradient(to top, rgba(11,59,58,.5), rgba(11,59,58,.05) 70%);
}
.section-space { padding:88px 0; }
.section-head {
  display:flex; align-items:flex-end;
  justify-content:space-between;
  gap:20px;
  flex-wrap:wrap;
  margin-bottom:36px;
}
.section-title {
  font-size:clamp(1.4rem,2.4vw,2.125rem);
  font-weight:700;
  line-height:1.25;
  color:var(--ink-deep);
  margin:0;
}
.section-desc {
  color:var(--muted);
  max-width:680px;
  font-size:1rem;
  line-height:1.7;
  margin-top:8px;
}
.section-link {
  color:var(--ink-teal); font-weight:600;
  font-size:.92rem;
  display:inline-flex; align-items:center; gap:8px;
  white-space:nowrap;
  transition:color .2s;
}
.section-link:hover { color:var(--coral); }
.section-link .arrow { transition:transform .2s; }
.section-link:hover .arrow { transform:translateX(4px); }
.card-base {
  background:#fff;
  border:1px solid var(--line);
  border-radius:18px;
  overflow:hidden;
  transition:box-shadow .25s ease, transform .25s ease, border-color .25s ease;
}
.card-base:hover {
  box-shadow:var(--shadow-hover);
  transform:translateY(-4px);
  border-color:var(--ink-teal);
}
.dir-card {
  position:relative;
  display:flex; flex-direction:column;
  justify-content:space-between;
  background:#fff;
  border:1px solid var(--line);
  border-radius:20px;
  padding:24px;
  min-height:230px;
  overflow:hidden;
  transition:box-shadow .25s ease, transform .25s ease, border-color .25s ease;
}
.dir-card:hover {
  box-shadow:var(--shadow-hover);
  transform:translateY(-5px);
  border-color:var(--ink-teal);
}
.dir-thumb {
  position:absolute; right:-18px; bottom:-18px;
  width:118px; height:118px;
  border-radius:18px;
  object-fit:cover;
  opacity:.14;
  transition:opacity .3s, transform .3s;
}
.dir-card:hover .dir-thumb {
  opacity:.22;
  transform:scale(1.06) rotate(-2deg);
}
.dir-num {
  font-size:2.8rem;
  font-weight:800;
  line-height:1;
  color:var(--amber);
  letter-spacing:-.02em;
}
.dir-name {
  font-size:1.18rem;
  font-weight:700;
  color:var(--ink-deep);
  margin-top:4px;
  transition:color .2s;
}
.dir-card:hover .dir-name { color:var(--ink-teal); }
.dir-desc { margin-top:10px; color:var(--muted); font-size:.92rem; line-height:1.6; }
.card-media {
  position:relative;
  overflow:hidden;
  aspect-ratio:16 / 9;
  background:var(--sand);
}
.card-media img {
  width:100%; height:100%;
  object-fit:cover;
  transition:transform .5s ease;
}
.group:hover .card-media img {
  transform:scale(1.04);
}
.tag {
  display:inline-block;
  background:var(--ink-teal);
  color:#EAF3EF;
  border-radius:6px;
  padding:3px 9px;
  font-size:.76rem;
  line-height:1.4;
}
.tag-light {
  background:rgba(255,255,255,.14);
  color:#fff;
  border:1px solid rgba(255,255,255,.2);
}
.g-hover-title { transition:color .2s; }
.group:hover .g-hover-title { color:var(--amber); }
.feature-main-card {
  display:flex; flex-direction:column;
  height:100%;
}
.feature-main-card .card-media { aspect-ratio:16 / 8.5; }
.sub-card {
  display:flex; gap:16px;
  padding:14px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:16px;
  align-items:stretch;
  transition:box-shadow .25s, border-color .25s;
}
.sub-card:hover {
  box-shadow:var(--shadow-hover);
  border-color:var(--ink-teal);
}
.sub-media {
  width:110px;
  min-width:110px;
  border-radius:12px;
  overflow:hidden;
  background:var(--sand);
  position:relative;
}
.sub-media img {
  position:absolute; inset:0; width:100%; height:100%; object-fit:cover;
}
.latest-feature {
  position:relative;
  border-radius:22px;
  overflow:hidden;
  min-height:360px;
  background:var(--ink-deep);
  color:#fff;
  display:flex;
  align-items:flex-end;
}
.latest-feature-bg {
  position:absolute; inset:0; width:100%; height:100%; object-fit:cover;
}
.latest-feature-overlay {
  position:absolute; inset:0;
  background:linear-gradient(to top, rgba(11,59,58,.92), rgba(11,59,58,.30) 60%, rgba(11,59,58,.05));
}
.latest-feature-content {
  position:relative; z-index:2;
  padding:28px;
  display:flex; flex-direction:column; gap:10px;
}
.latest-feature-content h4 {
  font-size:1.38rem; font-weight:700; line-height:1.4;
  margin:0;
}
.latest-feature-content p {
  color:#D7E3DF;
  font-size:.95rem;
  margin:0;
  display:-webkit-box; -webkit-line-clamp:3; -webkit-box-orient:vertical;
  overflow:hidden;
}
.latest-list-card {
  display:flex; align-items:flex-start;
  justify-content:space-between;
  gap:18px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:16px;
  padding:20px;
  transition:box-shadow .2s, border-color .2s;
}
.latest-list-card:hover {
  box-shadow:var(--shadow-hover);
  border-color:var(--ink-teal);
}
.latest-list-card h5 {
  margin:8px 0 6px;
  font-size:1.02rem;
  font-weight:600;
  color:var(--ink-deep);
  line-height:1.45;
  transition:color .2s;
}
.latest-list-card:hover h5 { color:var(--coral); }
.latest-list-card p {
  margin:0;
  color:var(--muted);
  font-size:.88rem;
  display:-webkit-box; -webkit-line-clamp:2; -webkit-box-orient:vertical;
  overflow:hidden;
}
.empty-state {
  background:#fff;
  border:1px dashed var(--line);
  border-radius:18px;
  color:var(--muted);
  padding:46px 24px;
  text-align:center;
}
.related-card {
  display:flex; flex-direction:column;
  height:100%;
}
.related-card .card-media { aspect-ratio:16 / 10; }
.related-body {
  flex:1;
  display:flex; flex-direction:column;
  gap:10px; padding:20px;
}
.read-link {
  display:inline-flex; align-items:center;
  color:var(--ink-teal);
  font-size:.88rem;
  font-weight:600;
  margin-top:auto;
  gap:6px;
}
.read-link .arrow { transition:transform .2s; }
.read-link:hover .arrow { transform:translateX(4px); }
.faq-wrap {
  max-width:860px;
  margin:0 auto;
  display:flex;
  flex-direction:column;
  gap:10px;
}
.faq-item {
  background:#fff;
  border:1px solid var(--line);
  border-radius:16px;
  overflow:hidden;
  transition:box-shadow .2s, border-color .2s;
}
.faq-item.open { box-shadow:var(--shadow-card); border-color:var(--ink-teal); }
.faq-q {
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  padding:18px 24px;
  font-size:1.02rem;
  font-weight:600;
  color:var(--ink-deep);
  text-align:left;
  line-height:1.5;
}
.faq-q:hover { color:var(--ink-teal); }
.faq-icon {
  width:26px; height:26px;
  flex-shrink:0;
  border-radius:50%;
  background:rgba(217,154,60,.12);
  color:var(--amber);
  display:grid;
  place-items:center;
  transition:transform .3s, background .2s;
}
.faq-icon svg { width:16px; height:16px; }
.faq-item.open .faq-icon {
  transform:rotate(45deg);
  background:var(--amber);
  color:#fff;
}
.faq-a {
  max-height:0;
  overflow:hidden;
  transition:max-height .35s ease;
}
.faq-item.open .faq-a { max-height:340px; }
.faq-a-inner {
  padding:0 24px 22px;
  color:var(--muted);
  font-size:.95rem;
  line-height:1.8;
  max-width:80ch;
}
.cta-section {
  background:var(--ink-deep);
  color:#fff;
  overflow:hidden;
}
.cta-section-bg {
  position:absolute; inset:0;
}
.cta-section-bg img {
  width:100%; height:100%;
  object-fit:cover;
  opacity:.14;
}
.cta-section-overlay {
  position:absolute; inset:0;
  background:linear-gradient(to right, rgba(11,59,58,.84), rgba(11,59,58,.6));
}
.footer {
  background:#082E2E;
  color:#C7D6D3;
}
.footer-grid {
  display:grid;
  grid-template-columns:2fr 1fr 1fr 1.2fr;
  gap:42px;
  padding:64px 0 48px;
}
.footer-logo {
  color:#fff;
  font-weight:700;
  font-size:1.28rem;
  display:flex;
  align-items:center;
  gap:10px;
}
.footer-logo .logo-symbol { width:30px; height:30px; font-size:.95rem; }
.footer-desc {
  color:#C7D6D3;
  font-size:.92rem;
  line-height:1.8;
  max-width:320px;
  margin-top:16px;
}
.footer-title {
  color:#fff;
  font-size:.98rem;
  font-weight:600;
  margin:0 0 16px;
}
.footer-links {
  list-style:none;
  margin:0;
  padding:0;
  display:flex;
  flex-direction:column;
  gap:10px;
}
.footer-links a {
  color:#C7D6D3;
  font-size:.9rem;
  transition:color .2s;
}
.footer-links a:hover { color:var(--amber); }
.footer-bottom {
  border-top:1px solid rgba(255,255,255,.1);
  padding:22px 0;
  font-size:.83rem;
  color:#9FB7B2;
}
.muted { color:var(--muted); }
.bg-sand { background:var(--sand); }
.bg-paper { background:var(--paper); }
@media (max-width: 1024px) {
  .footer-grid { grid-template-columns:1fr 1fr; gap:32px; }
  .hero-inner { grid-template-columns:1fr; }
  .hero-visual { min-height:320px; }
}
@media (max-width: 768px) {
  .main-nav, .header-cta { display:none; }
  .nav-toggle { display:flex; }
  .section-space { padding:56px 0; }
  .footer-grid { grid-template-columns:1fr; gap:32px; }
  .footer-desc { max-width:100%; }
  .dir-card { min-height:200px; }
}
@media (max-width: 520px) {
  .sub-card { flex-direction:column; }
  .sub-media { width:100%; min-width:0; aspect-ratio:16 / 9; position:relative; height:auto; }
  .sub-media img { position:static; height:auto; aspect-ratio:16 / 9; }
  .latest-feature { min-height:300px; }
  .hero-statline { gap:8px 18px; }
  .hero-actions .btn { width:100%; }
}

/* roulang page: category1 */
:root {
  --ink-deep: #0B3B3A;
  --ink-teal: #0F4C4A;
  --amber: #D99A3C;
  --coral: #F06449;
  --coral-dark: #D9543E;
  --paper: #F7F4EE;
  --card: #FFFFFF;
  --sand: #EDE8DF;
  --ink-soft: #23403F;
  --muted: #64746F;
  --line: #D9D6CE;
  --white-soft: #EAF3EF;
  --radius-xl: 24px;
  --radius-card: 16px;
  --radius-btn: 8px;
  --shadow-sm: 0 2px 10px rgba(11,59,58,0.05);
  --shadow-lg: 0 16px 30px rgba(11,59,58,0.12);
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'sans-serif';
  background: var(--paper);
  color: var(--ink-soft);
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}

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

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

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

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

ul {
  padding-left: 0;
}

.m-0 {
  margin: 0;
}

.container {
  width: 100%;
  max-width: 1200px;
  margin-inline: auto;
  padding-inline: 24px;
}

.section {
  padding: 92px 0;
}

.section-alt {
  background: var(--sand);
}

.section-dark {
  background: linear-gradient(135deg, var(--ink-deep) 0%, #155650 100%);
  color: var(--white-soft);
}

.section-dark .h2 {
  color: #ffffff;
}

.section-dark .section-lead,
.section-dark .eyebrow-light {
  color: rgba(234, 243, 239, 0.74);
}

.eyebrow {
  display: inline-block;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  color: var(--amber);
  margin: 0 0 10px;
  text-transform: uppercase;
}

.h2 {
  font-size: clamp(1.45rem, 2.5vw, 2.15rem);
  line-height: 1.25;
  font-weight: 800;
  color: var(--ink-deep);
  margin: 0 0 14px;
}

.section-head {
  max-width: 760px;
  margin-bottom: 56px;
}

.section-head-center {
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}

.section-lead {
  font-size: 1.06rem;
  color: var(--muted);
  max-width: 68ch;
  margin-bottom: 0;
}

.section-head-center .section-lead {
  margin-inline: auto;
}

/* 按钮 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 42px;
  padding: 9px 20px;
  border-radius: var(--radius-btn);
  font-weight: 600;
  font-size: 0.96rem;
  border: 1px solid transparent;
  line-height: 1.4;
  transition: background-color 0.25s ease, border-color 0.25s ease, color 0.25s ease, transform 0.2s ease, box-shadow 0.25s ease;
}

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

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

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

.btn-primary:hover {
  background: var(--coral-dark);
  border-color: var(--coral-dark);
}

.btn-outline-light {
  background: transparent;
  color: var(--white-soft);
  border-color: rgba(255, 255, 255, 0.72);
}

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

.btn-dark {
  background: var(--ink-deep);
  color: #ffffff;
  border-color: var(--ink-deep);
}

.btn-dark:hover {
  background: #14524D;
}

.btn:focus-visible,
a:focus-visible,
button:focus-visible,
summary:focus-visible {
  outline: 2px solid var(--amber);
  outline-offset: 3px;
}

/* 头部导航 */
.site-header {
  position: sticky;
  top: 0;
  z-index: 60;
  background: rgba(11, 59, 58, 0.97);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.site-header.scrolled {
  box-shadow: 0 14px 30px rgba(5, 33, 33, 0.18);
}

.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  height: 64px;
}

.nav-left {
  display: flex;
  align-items: center;
  gap: 30px;
  min-width: 0;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--white-soft);
  font-weight: 700;
  font-size: 1.08rem;
  letter-spacing: 0.02em;
  white-space: nowrap;
}

.logo-symbol {
  display: inline-grid;
  place-items: center;
  width: 32px;
  height: 32px;
  border-radius: 10px;
  background: var(--amber);
  color: var(--ink-deep);
  font-weight: 900;
  font-size: 1rem;
  flex: none;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 22px;
}

.nav-link {
  position: relative;
  display: inline-block;
  padding: 6px 2px;
  font-size: 0.95rem;
  font-weight: 500;
  color: rgba(234, 243, 239, 0.84);
  white-space: nowrap;
  transition: color 0.25s ease;
}

.nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 2px;
  background: var(--amber);
  transform: scaleX(0);
  transform-origin: center;
  transition: transform 0.25s ease;
}

.nav-link:hover {
  color: #ffffff;
}

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

.nav-link.active {
  color: var(--amber);
}

.nav-right {
  display: flex;
  align-items: center;
  gap: 12px;
}

.search-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  color: rgba(234, 243, 239, 0.9);
  transition: color 0.25s ease;
}

.search-link:hover {
  color: var(--amber);
}

.nav-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 10px;
  background: transparent;
  color: var(--white-soft);
}

/* 分类大标题区 */
.page-hero {
  position: relative;
  min-height: 420px;
  color: var(--white-soft);
  display: flex;
  align-items: center;
  background:
    linear-gradient(103deg, rgba(11, 59, 58, 0.97) 26%, rgba(15, 76, 74, 0.82) 65%, rgba(15, 76, 74, 0.7) 100%),
    url('/assets/images/backpic/back-3.webp') center 30% / cover no-repeat;
  padding: 80px 0 70px;
}

.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 0.86rem;
  color: rgba(234, 243, 239, 0.64);
  margin-bottom: 30px;
}

.breadcrumb a {
  color: rgba(234, 243, 239, 0.86);
  transition: color 0.25s ease;
}

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

.breadcrumb span[aria-hidden="true"] {
  color: var(--amber);
}

.breadcrumb .current {
  color: rgba(234, 243, 239, 0.68);
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--amber);
  font-weight: 700;
  font-size: 0.88rem;
  letter-spacing: 0.08em;
  margin-bottom: 14px;
}

.hero-title {
  font-size: clamp(2rem, 4.2vw, 3.15rem);
  line-height: 1.16;
  font-weight: 900;
  margin: 0 0 20px;
  color: #ffffff;
  letter-spacing: 0.02em;
}

.hero-text {
  font-size: 1.05rem;
  line-height: 1.85;
  color: rgba(234, 243, 239, 0.84);
  max-width: 58ch;
  margin-bottom: 28px;
}

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

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  list-style: none;
  margin: 32px 0 0;
  padding: 0;
}

.hero-meta li {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.06);
  font-size: 0.85rem;
  color: rgba(234, 243, 239, 0.85);
}

.hero-meta strong {
  color: #ffffff;
  font-weight: 600;
}

/* 栏目介绍 */
.intro-grid {
  display: grid;
  grid-template-columns: 1fr 1.45fr;
  gap: 64px;
  align-items: center;
}

.statement {
  font-size: clamp(1.28rem, 2.2vw, 1.8rem);
  font-weight: 700;
  line-height: 1.6;
  color: var(--ink-deep);
  margin-bottom: 20px;
}

.plain-text {
  color: var(--muted);
  font-size: 1.02rem;
  margin-bottom: 18px;
}

.plain-text strong {
  color: var(--ink-soft);
  font-weight: 600;
}

/* 出品档案精选 */
.feature-row {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  align-items: center;
  gap: 48px;
  margin-bottom: 92px;
}

.feature-row:last-child {
  margin-bottom: 0;
}

.feature-media {
  grid-column: span 6;
  border-radius: var(--radius-xl);
  overflow: hidden;
  background: var(--ink-teal);
  box-shadow: var(--shadow-lg);
  aspect-ratio: 16 / 11;
  position: relative;
}

.feature-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.feature-media:hover img {
  transform: scale(1.025);
}

.feature-content {
  grid-column: span 6;
}

.feature-row.reversed .feature-media {
  order: 2;
}

.feature-row.reversed .feature-content {
  order: 1;
}

.project-no {
  display: inline-block;
  font-size: 0.88rem;
  font-weight: 800;
  letter-spacing: 0.22em;
  color: var(--amber);
  margin-bottom: 12px;
}

.entry-title {
  font-size: 1.65rem;
  font-weight: 800;
  color: var(--ink-deep);
  margin-bottom: 10px;
}

.entry-sub {
  color: var(--muted);
  font-size: 0.94rem;
  margin-bottom: 16px;
}

.entry-desc {
  color: var(--ink-soft);
  font-size: 1.03rem;
  max-width: 55ch;
  margin-bottom: 22px;
}

.entry-points {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 0 0 24px;
  padding: 0;
}

.entry-points li {
  font-size: 0.86rem;
  padding: 6px 14px;
  border: 1px solid var(--line);
  background: var(--card);
  border-radius: 999px;
  color: var(--ink-teal);
  font-weight: 500;
}

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--ink-teal);
  font-weight: 600;
  border-bottom: 1px solid transparent;
  transition: color 0.25s ease, border-color 0.25s ease;
}

.text-link:hover {
  color: var(--coral);
  border-color: rgba(240, 100, 73, 0.35);
}

.note-line {
  margin-top: 56px;
  background: rgba(217, 154, 60, 0.12);
  border-left: 4px solid var(--amber);
  padding: 16px 20px;
  border-radius: 0 12px 12px 0;
  font-size: 0.95rem;
  color: var(--ink-soft);
}

/* 制作流程 */
.process-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-top: 42px;
}

.step-card {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-card);
  padding: 26px 22px;
  min-height: 190px;
  transition: background-color 0.25s ease, transform 0.25s ease;
}

.step-card:hover {
  background: rgba(255, 255, 255, 0.1);
  transform: translateY(-4px);
}

.step-num {
  display: block;
  font-size: 2rem;
  font-weight: 800;
  color: var(--amber);
  line-height: 1;
  margin-bottom: 18px;
}

.step-title {
  color: #ffffff;
  font-size: 1.12rem;
  font-weight: 700;
  margin: 0 0 10px;
}

.step-desc {
  color: rgba(234, 243, 239, 0.7);
  font-size: 0.94rem;
  line-height: 1.75;
  margin: 0;
}

/* 出品管理原则 */
.principle-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.principle-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  padding: 28px;
  box-shadow: var(--shadow-sm);
  transition: box-shadow 0.3s ease, transform 0.3s ease, border-color 0.3s ease;
}

.principle-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
  border-color: var(--ink-teal);
}

.principle-title {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
}

.principle-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  border-radius: 8px;
  background: var(--ink-teal);
  color: #ffffff;
  font-weight: 700;
  font-size: 0.88rem;
  flex: none;
}

.principle-card h3 {
  font-size: 1.14rem;
  font-weight: 700;
  color: var(--ink-deep);
  margin: 0;
}

.principle-card p {
  color: var(--muted);
  margin: 0;
  line-height: 1.8;
}

/* FAQ */
.faq-list {
  max-width: 880px;
  margin: 0 auto;
  display: grid;
  gap: 12px;
}

.faq-item {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  overflow: hidden;
  transition: box-shadow 0.3s ease, border-color 0.3s ease;
}

.faq-item:hover {
  border-color: rgba(11, 59, 58, 0.25);
}

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

.faq-summary {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 18px;
  list-style: none;
  padding: 22px 24px;
  cursor: pointer;
  font-size: 1.02rem;
  font-weight: 700;
  color: var(--ink-soft);
}

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

.faq-summary::after {
  content: "+";
  flex: none;
  font-size: 1.7rem;
  font-weight: 300;
  color: var(--amber);
  line-height: 1;
  transition: transform 0.25s ease;
}

.faq-item[open] .faq-summary::after {
  transform: rotate(45deg);
}

.faq-item .faq-answer {
  padding: 0 24px 22px;
  margin: 0;
  color: #4D5F5A;
  line-height: 1.8;
}

/* CTA */
.cta-section .cta-band {
  background: linear-gradient(135deg, var(--ink-deep) 0%, #15504D 100%);
  border-radius: var(--radius-xl);
  padding: clamp(40px, 6vw, 76px);
  color: var(--white-soft);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-band::after {
  content: "";
  position: absolute;
  right: -70px;
  top: -70px;
  width: 220px;
  height: 220px;
  border-radius: 50%;
  background: rgba(217, 154, 60, 0.18);
  pointer-events: none;
}

.cta-band h2 {
  font-size: clamp(1.5rem, 3vw, 2.2rem);
  color: #ffffff;
  font-weight: 800;
  margin-bottom: 14px;
  position: relative;
  z-index: 1;
}

.cta-band p {
  max-width: 620px;
  margin: 0 auto 30px;
  color: rgba(234, 243, 239, 0.78);
  position: relative;
  z-index: 1;
}

.cta-band .btn-row {
  position: relative;
  z-index: 1;
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  justify-content: center;
}

.cta-band .btn-outline-light {
  color: var(--white-soft);
  border-color: rgba(255, 255, 255, 0.7);
}

/* 页脚 */
.footer {
  background: #082E2E;
  color: #C7D6D3;
  padding-top: 70px;
  margin-top: 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.3fr;
  gap: 44px;
  padding-bottom: 46px;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  color: #ffffff;
  font-size: 1.16rem;
  font-weight: 700;
  margin-bottom: 18px;
}

.footer-logo .logo-symbol {
  width: 34px;
  height: 34px;
}

.footer-desc {
  color: rgba(199, 214, 211, 0.78);
  font-size: 0.94rem;
  line-height: 1.9;
  max-width: 44ch;
}

.footer-title {
  color: #ffffff;
  font-size: 0.95rem;
  font-weight: 700;
  margin: 0 0 18px;
}

.footer-links {
  display: grid;
  gap: 10px;
  padding: 0;
  margin: 0;
  list-style: none;
  font-size: 0.92rem;
}

.footer-links li {
  line-height: 1.6;
  color: rgba(199, 214, 211, 0.78);
}

.footer-links a {
  color: rgba(199, 214, 211, 0.9);
  transition: color 0.25s ease;
}

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

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding: 20px 0;
  font-size: 0.86rem;
  color: rgba(199, 214, 211, 0.68);
}

.footer-bottom .flex {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

/* 图标提示 */
.svg-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: rgba(217, 154, 60, 0.12);
  color: var(--amber);
  margin-bottom: 18px;
}

/* 响应式 */
@media (max-width: 1024px) {
  .nav-wrap {
    height: 60px;
  }

  .main-nav {
    position: fixed;
    top: 60px;
    left: 0;
    right: 0;
    background: rgba(8, 46, 46, 0.98);
    flex-direction: column;
    align-items: stretch;
    gap: 2px;
    padding: 16px 24px 26px;
    box-shadow: 0 24px 40px rgba(0, 0, 0, 0.14);
    transform: translateY(-12px);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity 0.28s ease, transform 0.28s ease, visibility 0.28s ease;
  }

  .main-nav.open {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: translateY(0);
  }

  .main-nav .nav-link {
    padding: 14px 4px;
    font-size: 1rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  }

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

  .page-hero {
    padding: 64px 0 58px;
    min-height: auto;
  }

  .intro-grid,
  .feature-row,
  .feature-row.reversed {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .feature-row {
    margin-bottom: 64px;
  }

  .feature-media,
  .feature-content,
  .feature-row .feature-media,
  .feature-row .feature-content,
  .feature-row.reversed .feature-media,
  .feature-row.reversed .feature-content {
    grid-column: 1;
    order: initial;
  }

  .process-strip {
    grid-template-columns: 1fr 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 36px;
  }
}

@media (max-width: 640px) {
  .section {
    padding: 58px 0;
  }

  .section-head {
    margin-bottom: 38px;
  }

  .container {
    padding-inline: 18px;
  }

  .nav-wrap {
    height: 56px;
  }

  .main-nav {
    top: 56px;
    padding: 14px 18px 22px;
  }

  .logo-word {
    font-size: 0.96rem;
  }

  .logo-symbol {
    width: 28px;
    height: 28px;
    border-radius: 8px;
  }

  .header-cta {
    display: none;
  }

  .nav-right {
    gap: 4px;
  }

  .page-hero {
    padding: 56px 0 48px;
  }

  .hero-title {
    font-size: 2.05rem;
  }

  .hero-text {
    font-size: 1rem;
  }

  .hero-actions {
    gap: 10px;
  }

  .hero-actions .btn {
    flex: 1 1 auto;
    justify-content: center;
  }

  .hero-meta {
    display: grid;
    gap: 8px;
    margin-top: 24px;
  }

  .hero-meta li {
    justify-content: flex-start;
  }

  .feature-row {
    margin-bottom: 48px;
  }

  .feature-row:last-child {
    margin-bottom: 0;
  }

  .feature-media {
    border-radius: 18px;
  }

  .entry-title {
    font-size: 1.4rem;
  }

  .process-strip,
  .principle-grid {
    grid-template-columns: 1fr;
  }

  .step-card {
    min-height: auto;
    padding: 22px 20px;
  }

  .faq-summary {
    padding: 18px 18px;
    align-items: flex-start;
    line-height: 1.6;
  }

  .faq-item .faq-answer {
    padding: 0 18px 18px;
  }

  .cta-band {
    padding: 40px 24px;
  }

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

  .footer {
    padding-top: 54px;
  }

  .footer-bottom .flex {
    flex-direction: column;
    justify-content: center;
    text-align: center;
  }
}

/* roulang page: article */
:root {
      --ink-deep: #0B3B3A;
      --ink-teal: #0F4C4A;
      --amber: #D99A3C;
      --coral: #F06449;
      --paper: #F7F4EE;
      --card: #FFFFFF;
      --sand: #EDE8DF;
      --ink-soft: #23403F;
      --muted: #64746F;
      --line: #D9D6CE;
      --white: #FFFFFF;
      --soft-on-dark: #EAF3EF;
      --shadow-md: 0 2px 10px rgba(11,59,58,0.05);
      --shadow-lg: 0 16px 30px rgba(11,59,58,0.12);
      --radius-lg: 24px;
      --radius-md: 16px;
      --radius-sm: 10px;
    }

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

    html {
      scroll-behavior: smooth;
    }

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

    h1, h2, h3, h4 {
      margin: 0 0 0.7em;
      color: var(--ink-deep);
      line-height: 1.3;
      font-weight: 800;
    }

    p {
      margin: 0 0 1rem;
    }

    ul, ol {
      margin: 0;
      padding: 0;
      list-style: none;
    }

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

    button {
      font: inherit;
      cursor: pointer;
    }

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

    a:focus-visible,
    button:focus-visible {
      outline: 3px solid rgba(217, 154, 60, 0.5);
      outline-offset: 2px;
      border-radius: 8px;
    }

    .skip-link {
      position: absolute;
      left: 16px;
      top: -100px;
      z-index: 200;
      padding: 10px 16px;
      background: var(--ink-deep);
      color: #fff;
      border-radius: 8px;
      transition: top 0.2s ease;
    }

    .skip-link:focus {
      top: 12px;
    }

    .container {
      width: 100%;
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 24px;
    }

    .section {
      padding: 80px 0;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      min-height: 46px;
      padding: 0 24px;
      border: 1px solid transparent;
      border-radius: var(--radius-sm);
      font-size: 0.95rem;
      font-weight: 600;
      white-space: nowrap;
      transition: background 0.2s ease, border-color 0.2s ease, color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
    }

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

    .btn-primary:hover {
      background: #D9543E;
      border-color: #D9543E;
      transform: translateY(-2px);
      box-shadow: 0 12px 26px rgba(240, 100, 73, 0.25);
    }

    .btn-line-dark {
      background: transparent;
      border-color: var(--ink-deep);
      color: var(--ink-deep);
    }

    .btn-line-dark:hover {
      background: var(--ink-deep);
      color: #fff;
    }

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

    .btn-coral:hover {
      background: #D9543E;
      border-color: #D9543E;
      transform: translateY(-2px);
      box-shadow: 0 12px 26px rgba(240, 100, 73, 0.25);
    }

    .site-header {
      position: sticky;
      top: 0;
      z-index: 80;
      background: rgba(11, 59, 58, 0.97);
      box-shadow: 0 4px 18px rgba(8, 46, 46, 0.08);
    }

    .site-header.is-scrolled {
      background: rgba(11, 59, 58, 0.98);
      box-shadow: 0 6px 18px rgba(8, 46, 46, 0.12);
    }

    .nav-wrap {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 64px;
    }

    .nav-left,
    .nav-right {
      display: flex;
      align-items: center;
      gap: 22px;
      min-width: 0;
    }

    .nav-left {
      flex: 1;
    }

    .nav-right {
      gap: 14px;
    }

    .logo {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      color: #fff;
      font-weight: 900;
      font-size: 1.05rem;
      white-space: nowrap;
    }

    .logo-symbol {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 34px;
      height: 34px;
      background: var(--amber);
      color: var(--ink-deep);
      border-radius: 10px;
      font-size: 18px;
      font-weight: 900;
      line-height: 1;
    }

    .main-nav {
      display: flex;
      align-items: center;
      gap: 26px;
      margin-left: 30px;
    }

    .nav-link {
      position: relative;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-height: 44px;
      color: var(--soft-on-dark);
      font-size: 0.94rem;
      font-weight: 500;
      padding: 0 2px;
      transition: color 0.2s ease;
    }

    .nav-link::after {
      content: "";
      position: absolute;
      left: 0;
      right: 0;
      bottom: 6px;
      height: 2px;
      border-radius: 2px;
      background: var(--amber);
      opacity: 0;
      transform: scaleX(0.4);
      transition: opacity 0.2s ease, transform 0.2s ease;
    }

    .nav-link:hover,
    .nav-link.active {
      color: var(--amber);
    }

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

    .search-link {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 40px;
      height: 40px;
      color: var(--soft-on-dark);
      border-radius: 10px;
      transition: color 0.2s ease, background 0.2s ease;
    }

    .search-link:hover {
      background: rgba(255, 255, 255, 0.08);
      color: var(--amber);
    }

    .header-cta {
      min-height: 38px;
      padding: 0 18px;
      background: var(--coral);
      color: #fff;
      border-radius: 8px;
      font-size: 0.9rem;
    }

    .header-cta:hover {
      background: #D9543E;
      transform: translateY(-1px);
    }

    .nav-toggle {
      display: none;
      align-items: center;
      justify-content: center;
      width: 42px;
      height: 42px;
      border: 1px solid rgba(255, 255, 255, 0.16);
      border-radius: 10px;
      background: transparent;
      color: #fff;
      position: relative;
      z-index: 90;
    }

    .article-hero {
      position: relative;
      overflow: hidden;
      background:
        linear-gradient(108deg, rgba(8, 46, 46, 0.94) 0%, rgba(11, 59, 58, 0.92) 50%, rgba(15, 76, 74, 0.78) 100%),
        url("/assets/images/backpic/back-1.png") no-repeat center center / cover;
      color: var(--soft-on-dark);
      padding: 54px 0 88px;
    }

    .article-hero-container {
      position: relative;
      z-index: 2;
    }

    .breadcrumb {
      display: flex;
      align-items: center;
      flex-wrap: wrap;
      gap: 10px;
      color: rgba(234, 243, 239, 0.72);
      font-size: 0.86rem;
      margin-bottom: 34px;
    }

    .breadcrumb a {
      transition: color 0.2s ease;
    }

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

    .breadcrumb-current {
      color: rgba(234, 243, 239, 0.94);
    }

    .article-category-label {
      display: inline-flex;
      align-items: center;
      min-height: 28px;
      padding: 0 12px;
      background: rgba(217, 154, 60, 0.18);
      border: 1px solid rgba(217, 154, 60, 0.4);
      color: #EEC37E;
      border-radius: 999px;
      font-size: 0.82rem;
      font-weight: 700;
      letter-spacing: 0.04em;
      margin-bottom: 22px;
    }

    .article-page-title {
      margin: 0 0 24px;
      max-width: 920px;
      color: #fff;
      font-size: clamp(1.9rem, 3.6vw, 3rem);
      line-height: 1.25;
      font-weight: 900;
      text-wrap: pretty;
    }

    .article-hero-meta {
      display: flex;
      align-items: center;
      flex-wrap: wrap;
      gap: 16px 24px;
      color: rgba(234, 243, 239, 0.74);
      font-size: 0.9rem;
    }

    .article-hero-meta span::before {
      content: "";
      display: inline-block;
      width: 5px;
      height: 5px;
      border-radius: 50%;
      background: var(--amber);
      margin-right: 8px;
      vertical-align: middle;
    }

    .article-content-section {
      padding: 34px 0 76px;
    }

    .article-sheet {
      max-width: 880px;
      margin: -44px auto 0;
      background: var(--card);
      border: 1px solid var(--line);
      border-radius: var(--radius-lg);
      box-shadow: var(--shadow-md);
      padding: clamp(26px, 5vw, 62px);
    }

    .cms-body {
      color: var(--ink-soft);
      font-size: 1.07rem;
      line-height: 1.9;
    }

    .cms-body > *:first-child {
      margin-top: 0;
    }

    .cms-body > *:last-child {
      margin-bottom: 0;
    }

    .cms-body p {
      margin: 0 0 1.4em;
      max-width: 68ch;
    }

    .cms-body h2,
    .cms-body h3,
    .cms-body h4 {
      margin-top: 2em;
      color: var(--ink-deep);
    }

    .cms-body h2 {
      font-size: 1.55rem;
    }

    .cms-body h3 {
      font-size: 1.3rem;
    }

    .cms-body ul,
    .cms-body ol {
      list-style: none;
      padding-left: 0;
      margin: 0 0 1.5em;
    }

    .cms-body ul li,
    .cms-body ol li {
      position: relative;
      padding-left: 1.6em;
      margin-bottom: 0.65em;
    }

    .cms-body ul li::before {
      content: "";
      position: absolute;
      left: 0;
      top: 0.78em;
      width: 7px;
      height: 7px;
      border-radius: 50%;
      background: var(--amber);
    }

    .cms-body ol {
      counter-reset: cms-ol;
    }

    .cms-body ol li {
      counter-increment: cms-ol;
    }

    .cms-body ol li::before {
      content: counter(cms-ol) ".";
      position: absolute;
      left: 0;
      top: 0;
      color: var(--amber);
      font-weight: 700;
    }

    .cms-body blockquote {
      margin: 0 0 1.6em;
      padding: 18px 24px;
      border-left: 4px solid var(--amber);
      border-radius: 0 14px 14px 0;
      background: var(--paper);
      color: var(--ink-soft);
    }

    .cms-body img {
      border-radius: var(--radius-md);
      margin: 26px 0;
      box-shadow: var(--shadow-md);
    }

    .cms-body a {
      color: var(--ink-teal);
      text-decoration: underline;
      text-underline-offset: 3px;
    }

    .cms-body a:hover {
      color: var(--coral);
    }

    .cms-body hr {
      border: 0;
      border-top: 1px solid var(--line);
      margin: 2.4em 0;
    }

    .cms-body table {
      width: 100%;
      border-collapse: collapse;
      margin: 26px 0;
      font-size: 0.95rem;
    }

    .cms-body th,
    .cms-body td {
      border: 1px solid var(--line);
      padding: 12px 14px;
      text-align: left;
    }

    .cms-body th {
      background: var(--paper);
      font-weight: 700;
      color: var(--ink-deep);
    }

    .article-missing {
      padding: 34px 4px 10px;
      text-align: center;
    }

    .article-missing .missing-code {
      color: var(--amber);
      font-size: 2.2rem;
      font-weight: 900;
      letter-spacing: 0.1em;
      margin-bottom: 12px;
    }

    .article-missing p {
      color: var(--muted);
      margin-bottom: 28px;
    }

    .article-end-note {
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 18px;
      margin-top: 52px;
      padding-top: 28px;
      border-top: 1px solid var(--line);
    }

    .article-end-note .note-copy {
      color: var(--muted);
      font-size: 0.92rem;
      margin: 0;
    }

    .back-home-link {
      color: var(--ink-teal);
      font-weight: 600;
      font-size: 0.94rem;
      transition: color 0.2s ease;
    }

    .back-home-link:hover {
      color: var(--coral);
    }

    .related-section {
      background: var(--sand);
      padding: 84px 0;
    }

    .section-heading {
      max-width: 760px;
      margin-bottom: 40px;
    }

    .eyebrow {
      display: inline-block;
      color: var(--amber);
      font-size: 0.84rem;
      font-weight: 800;
      letter-spacing: 0.12em;
      text-transform: uppercase;
      margin-bottom: 12px;
    }

    .related-heading {
      margin-bottom: 22px;
    }

    .related-lead {
      color: var(--muted);
      font-size: 1.02rem;
      max-width: 660px;
      margin: 0;
    }

    .related-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .related-card {
      display: flex;
      flex-direction: column;
      background: var(--card);
      border: 1px solid var(--line);
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: var(--shadow-md);
      transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
    }

    .related-card:hover {
      transform: translateY(-5px);
      border-color: var(--ink-teal);
      box-shadow: var(--shadow-lg);
    }

    .related-card img {
      width: 100%;
      aspect-ratio: 16 / 10;
      object-fit: cover;
      transition: transform 0.4s ease;
    }

    .related-card:hover img {
      transform: scale(1.03);
    }

    .related-card-body {
      padding: 22px 22px 24px;
      flex: 1;
      display: flex;
      flex-direction: column;
    }

    .tag {
      display: inline-flex;
      align-items: center;
      width: fit-content;
      min-height: 24px;
      padding: 0 10px;
      background: rgba(15, 76, 74, 0.08);
      border-radius: 999px;
      color: var(--ink-teal);
      font-size: 0.78rem;
      font-weight: 700;
      margin-bottom: 12px;
    }

    .related-card h3 {
      margin: 0 0 10px;
      font-size: 1.24rem;
    }

    .related-card p {
      color: var(--muted);
      margin: 0;
      font-size: 0.96rem;
      line-height: 1.7;
    }

    .related-more {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      margin-top: auto;
      padding-top: 18px;
      color: var(--ink-teal);
      font-size: 0.92rem;
      font-weight: 700;
      transition: color 0.2s ease, gap 0.2s ease;
    }

    .related-card:hover .related-more,
    .related-more:hover {
      color: var(--amber);
      gap: 12px;
    }

    .article-cta-sec {
      background: var(--ink-deep);
      padding: 88px 0;
    }

    .cta-card {
      background: linear-gradient(115deg, #0B3B3A 0%, #14524D 100%);
      border: 1px solid rgba(255, 255, 255, 0.08);
      border-radius: 24px;
      padding: clamp(24px, 4.5vw, 54px);
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 28px;
      color: #fff;
      flex-wrap: wrap;
    }

    .cta-card .eyebrow {
      color: #E5B866;
    }

    .cta-card h2 {
      margin: 0 0 14px;
      color: #fff;
      font-size: clamp(1.5rem, 2.4vw, 2.1rem);
    }

    .cta-card p {
      color: rgba(234, 243, 239, 0.78);
      font-size: 1.02rem;
      margin: 0;
      max-width: 620px;
    }

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

    .btn-line-light {
      background: transparent;
      border: 1px solid rgba(255, 255, 255, 0.45);
      color: #fff;
    }

    .btn-line-light:hover {
      background: rgba(255, 255, 255, 0.1);
      border-color: #fff;
      color: var(--amber);
    }

    .footer {
      background: #082E2E;
      color: #C7D6D3;
      padding-top: 70px;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.25fr 0.9fr 0.9fr 1.1fr;
      gap: 36px;
      padding-bottom: 54px;
    }

    .footer-logo {
      display: flex;
      align-items: center;
      gap: 10px;
      color: #fff;
      font-size: 1.1rem;
      font-weight: 900;
    }

    .footer-desc {
      margin: 18px 0 0;
      color: rgba(199, 214, 211, 0.76);
      font-size: 0.94rem;
      line-height: 1.8;
      max-width: 300px;
    }

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

    .footer-links {
      display: grid;
      gap: 12px;
      font-size: 0.94rem;
    }

    .footer-links a {
      color: #C7D6D3;
      transition: color 0.2s ease, padding-left 0.2s ease;
    }

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

    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.09);
      padding: 20px 0;
      font-size: 0.88rem;
      color: rgba(199, 214, 211, 0.68);
    }

    @media (max-width: 1024px) {
      .section {
        padding: 60px 0;
      }

      .nav-left {
        gap: 12px;
      }

      .main-nav {
        position: fixed;
        inset: 0;
        flex-direction: column;
        align-items: flex-start;
        justify-content: flex-start;
        gap: 0;
        margin-left: 0;
        padding: 88px 28px 32px;
        background: rgba(9, 48, 47, 0.99);
        transform: translateX(100%);
        transition: transform 0.3s ease;
        z-index: 75;
      }

      body.nav-open .main-nav {
        transform: translateX(0);
      }

      .main-nav .nav-link {
        width: 100%;
        justify-content: flex-start;
        min-height: 54px;
        border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        font-size: 1.1rem;
      }

      .main-nav .nav-link::after {
        bottom: 12px;
        width: 28px;
        left: 0;
      }

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

      .nav-toggle .icon-close {
        display: none;
      }

      body.nav-open .nav-toggle .icon-open {
        display: none;
      }

      body.nav-open .nav-toggle .icon-close {
        display: block;
      }

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

    @media (max-width: 768px) {
      .footer-grid {
        grid-template-columns: 1fr;
        gap: 28px;
      }

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

      .cta-card {
        justify-content: flex-start;
      }
    }

    @media (max-width: 640px) {
      .nav-wrap {
        height: 56px;
      }

      .logo-word {
        font-size: 1rem;
      }

      .search-link,
      .header-cta {
        display: none;
      }

      .section {
        padding: 52px 0;
      }

      .article-hero {
        padding: 42px 0 78px;
      }

      .article-page-title {
        font-size: 1.75rem;
      }

      .article-sheet {
        padding: 24px;
        border-radius: 18px;
      }

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

/* roulang page: category2 */
:root {
  --ink-deep: #0B3B3A;
  --ink-teal: #0F4C4A;
  --amber: #D99A3C;
  --coral: #F06449;
  --paper: #F7F4EE;
  --card: #FFFFFF;
  --sand: #EDE8DF;
  --ink-soft: #23403F;
  --muted: #64746F;
  --line: #D9D6CE;
  --shadow-sm: 0 2px 10px rgba(11,59,58,0.05);
  --shadow-lg: 0 16px 30px rgba(11,59,58,0.12);
  --radius-xl: 24px;
  --radius-lg: 16px;
  --radius-md: 8px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  background: var(--paper);
  color: var(--ink-soft);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

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

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

button {
  font-family: inherit;
}

.container {
  width: 100%;
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 24px;
  padding-right: 24px;
}

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: transparent;
  transition: background .3s ease, box-shadow .3s ease, padding .3s ease;
}

.site-header.scrolled {
  background: rgba(11, 59, 58, 0.96);
  box-shadow: 0 8px 28px rgba(0, 0, 0, 0.18);
}

.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  height: 68px;
}

.nav-left,
.nav-right {
  display: flex;
  align-items: center;
}

.nav-left {
  gap: 24px;
  min-width: 0;
}

.nav-right {
  gap: 14px;
}

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

.logo-symbol {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: 10px;
  background: var(--amber);
  color: var(--ink-deep);
  font-size: 17px;
  font-weight: 900;
  letter-spacing: 0;
}

.logo-word {
  color: #F1F6F3;
  font-size: 18px;
  font-weight: 800;
  letter-spacing: 0.04em;
  white-space: nowrap;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-link {
  display: inline-flex;
  align-items: center;
  height: 36px;
  padding: 0 14px;
  color: rgba(235, 244, 239, 0.9);
  font-size: 15px;
  font-weight: 500;
  border-radius: 6px;
  border-bottom: 2px solid transparent;
  transition: color .2s ease, border-color .2s ease, background .2s ease;
}

.nav-link:hover {
  color: var(--amber);
  border-bottom-color: var(--amber);
  background: rgba(255, 255, 255, 0.04);
}

.nav-link.active {
  color: var(--amber);
  border-bottom-color: var(--amber);
  font-weight: 700;
}

.search-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  color: rgba(235, 244, 239, 0.9);
  border-radius: 10px;
  transition: color .2s ease, background .2s ease;
}

.search-link:hover {
  color: var(--amber);
  background: rgba(255, 255, 255, 0.06);
}

.nav-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  background: transparent;
  border: 0;
  border-radius: 10px;
  color: #EAF3EF;
  cursor: pointer;
  transition: background .2s ease;
}

.nav-toggle:hover {
  background: rgba(255, 255, 255, 0.08);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 44px;
  padding: 0 20px;
  border-radius: 10px;
  font-size: 15px;
  font-weight: 700;
  line-height: 1;
  border: 0;
  cursor: pointer;
  transition: background .2s ease, color .2s ease, transform .2s ease, box-shadow .2s ease;
}

.btn:focus-visible {
  outline: 3px solid rgba(217, 154, 60, 0.45);
  outline-offset: 3px;
}

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

.btn-primary:hover {
  background: #D9543E;
  box-shadow: 0 10px 22px rgba(240, 100, 73, 0.22);
  transform: translateY(-1px);
}

.btn-primary:active {
  background: #C44A38;
  transform: translateY(0);
}

.header-cta {
  height: 40px;
  padding: 0 16px;
  font-size: 14px;
}

.category-hero {
  position: relative;
  min-height: 520px;
  display: flex;
  align-items: center;
  color: #F4F8F6;
  background: var(--ink-deep);
  overflow: hidden;
}

.category-hero .hero-bg-image {
  position: absolute;
  inset: 0;
  background-image: linear-gradient(105deg, rgba(11, 59, 58, 0.98) 0%, rgba(11, 59, 58, 0.93) 54%, rgba(20, 82, 77, 0.68) 100%), url("/assets/images/backpic/back-2.png");
  background-size: cover;
  background-position: center;
  opacity: 0.92;
}

.category-hero .hero-bg-image::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(217, 154, 60, 0.14) 1px, transparent 1px);
  background-size: 24px 24px;
  pointer-events: none;
}

.hero-inner {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(300px, 0.85fr);
  align-items: center;
  gap: 64px;
  padding-top: 150px;
  padding-bottom: 96px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--amber);
  text-transform: uppercase;
}

.eyebrow::before {
  content: "";
  width: 26px;
  height: 2px;
  background: var(--amber);
  display: inline-block;
  border-radius: 2px;
}

.page-h1 {
  margin: 22px 0 18px;
  font-size: clamp(2rem, 4vw, 3.25rem);
  font-weight: 900;
  line-height: 1.15;
  letter-spacing: 0.02em;
  color: #FFFFFF;
}

.hero-intro {
  margin: 0 0 34px;
  max-width: 620px;
  font-size: 17px;
  line-height: 1.85;
  color: rgba(235, 244, 239, 0.9);
}

.hero-actions {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}

.btn-outline-light {
  background: transparent;
  border: 1px solid rgba(235, 244, 239, 0.4);
  color: #EAF3EF;
}

.btn-outline-light:hover {
  border-color: var(--amber);
  color: var(--amber);
  background: rgba(217, 154, 60, 0.08);
}

.hero-visual {
  position: relative;
}

.hero-visual-image {
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: 0 24px 60px rgba(3, 29, 28, 0.45);
  border: 1px solid rgba(255, 255, 255, 0.14);
}

.hero-visual-image img {
  width: 100%;
  height: 320px;
  object-fit: cover;
  border-radius: inherit;
}

.hero-note-card {
  position: absolute;
  left: -28px;
  bottom: 28px;
  max-width: 240px;
  padding: 16px 18px;
  background: rgba(255, 255, 255, 0.95);
  border-radius: 14px;
  color: #23403F;
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.28);
  border-left: 4px solid var(--amber);
  backdrop-filter: blur(6px);
}

.hero-note-card strong {
  display: block;
  font-size: 15px;
  font-weight: 800;
  margin-bottom: 4px;
}

.hero-note-card span {
  font-size: 13px;
  line-height: 1.6;
  color: var(--muted);
}

.intro-strip {
  padding: 88px 0 72px;
  background: var(--paper);
}

.intro-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.38fr) minmax(0, 0.62fr);
  gap: 64px;
  align-items: start;
}

.section-kicker {
  font-size: 13px;
  font-weight: 800;
  color: var(--ink-deep);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 12px;
}

.intro-grid h2 {
  margin: 0;
  font-size: clamp(1.5rem, 2.4vw, 2.1rem);
  color: var(--ink-deep);
  line-height: 1.25;
}

.intro-grid p {
  margin: 0 0 20px;
  font-size: 17px;
  line-height: 1.9;
  color: var(--ink-soft);
}

.intro-note {
  padding: 20px 24px;
  background: var(--sand);
  border-radius: 16px;
  border-left: 4px solid var(--ink-teal);
  color: #3C5855;
  font-size: 16px;
  line-height: 1.8;
}

.stat-band {
  background: var(--ink-deep);
  color: #EAF3EF;
  padding: 46px 0;
}

.stat-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px;
}

.stat-item {
  position: relative;
  padding: 18px 12px 18px 0;
  border-left: 1px solid rgba(255, 255, 255, 0.14);
}

.stat-item {
  padding-left: 22px;
}

.stat-item .stat-number {
  font-size: 38px;
  font-weight: 800;
  line-height: 1;
  color: var(--amber);
}

.stat-item .stat-type {
  display: block;
  margin-top: 10px;
  font-size: 15px;
  font-weight: 600;
  color: #F3F7F4;
}

.stat-item .stat-desc {
  display: block;
  margin-top: 4px;
  font-size: 13px;
  color: rgba(220, 234, 229, 0.7);
}

.ip-catalog {
  padding: 88px 0 90px;
}

.catalog-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 32px;
  margin-bottom: 42px;
}

.catalog-head h2 {
  margin: 0;
  font-size: clamp(1.6rem, 2.6vw, 2.25rem);
  color: var(--ink-deep);
  line-height: 1.3;
}

.catalog-head .head-desc {
  max-width: 560px;
  color: var(--muted);
  line-height: 1.8;
  font-size: 16px;
  margin: 0;
}

.spotlight-card {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  gap: 40px;
  background: var(--card);
  border-radius: var(--radius-xl);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  margin-bottom: 28px;
  transition: box-shadow .3s ease, transform .3s ease;
}

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

.spotlight-card .spot-media {
  position: relative;
  min-height: 360px;
  height: 100%;
}

.spotlight-card .spot-media img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.spot-media-tag,
.stage-badge {
  display: inline-flex;
  align-items: center;
  padding: 6px 12px;
  border-radius: 999px;
  background: rgba(11, 59, 58, 0.86);
  color: #F7F4EE;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.03em;
  backdrop-filter: blur(4px);
}

.spot-media-tag {
  position: absolute;
  left: 16px;
  top: 16px;
}

.spot-body {
  padding: 48px 40px 44px 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.card-number {
  font-size: 24px;
  font-weight: 800;
  color: var(--amber);
  line-height: 1;
  display: inline-block;
  margin-bottom: 16px;
}

.spot-body .type-line {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  color: var(--muted);
  margin-bottom: 14px;
}

.type-line .dot {
  display: inline-block;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--amber);
}

.spot-body h3 {
  font-size: clamp(1.5rem, 2vw, 2rem);
  font-weight: 800;
  color: var(--ink-deep);
  margin: 0 0 16px;
  line-height: 1.35;
}

.spot-body p {
  font-size: 16px;
  color: #3E5551;
  line-height: 1.85;
  margin: 0 0 24px;
}

.meta-inline {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px 20px;
  padding-top: 20px;
  border-top: 1px solid var(--line);
  font-size: 14px;
  color: var(--ink-teal);
  font-weight: 600;
}

.meta-inline a {
  color: var(--coral);
  font-weight: 700;
  transition: color .2s ease;
}

.meta-inline a:hover {
  color: var(--ink-deep);
}

.duo-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}

.ip-card {
  background: var(--card);
  border-radius: var(--radius-xl);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  transition: box-shadow .3s ease, transform .3s ease, border-color .3s ease;
}

.ip-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-top: 3px solid var(--ink-teal);
}

.ip-card .ip-media {
  position: relative;
  aspect-ratio: 16 / 10;
  overflow: hidden;
}

.ip-card .ip-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .5s ease;
}

.ip-card:hover .ip-media img {
  transform: scale(1.03);
}

.ip-media .stage-badge {
  position: absolute;
  right: 14px;
  top: 14px;
  background: rgba(11, 59, 58, 0.82);
}

.ip-card-body {
  padding: 26px 26px 28px;
}

.ip-card-body .ip-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 13px;
  color: var(--muted);
  margin-bottom: 12px;
}

.ip-card-body .ip-meta .open-status {
  color: var(--ink-deep);
  background: var(--sand);
  padding: 3px 9px;
  border-radius: 999px;
  font-weight: 700;
}

.ip-card-body h3 {
  font-size: 22px;
  font-weight: 800;
  color: var(--ink-deep);
  margin: 0 0 12px;
  line-height: 1.4;
  transition: color .2s ease;
}

.ip-card:hover h3 {
  color: var(--amber);
}

.ip-card-body p {
  font-size: 15px;
  line-height: 1.85;
  color: #536864;
  margin: 0 0 18px;
}

.ip-card-body .card-more {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--ink-teal);
  font-size: 14px;
  font-weight: 700;
  transition: gap .2s ease, color .2s ease;
}

.ip-card-body .card-more span {
  font-size: 18px;
  line-height: 1;
}

.ip-card-body .card-more:hover {
  gap: 10px;
  color: var(--coral);
}

.process-block {
  background: var(--ink-deep);
  color: #EAF3EF;
  padding: 88px 0;
  position: relative;
  overflow: hidden;
}

.process-block::before {
  content: "";
  position: absolute;
  width: 480px;
  height: 480px;
  right: -120px;
  bottom: -240px;
  border-radius: 50%;
  background: rgba(217, 154, 60, 0.08);
}

.process-head {
  max-width: 680px;
  margin-bottom: 52px;
}

.process-head .section-kicker {
  color: var(--amber);
}

.process-head h2 {
  font-size: clamp(1.5rem, 2.6vw, 2.2rem);
  line-height: 1.3;
  margin: 0 0 14px;
  color: #fff;
}

.process-head p {
  font-size: 16px;
  color: rgba(220, 234, 229, 0.78);
  line-height: 1.85;
}

.process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px;
  position: relative;
}

.process-step {
  padding-left: 18px;
  border-left: 1px solid rgba(255, 255, 255, 0.18);
  min-height: 190px;
}

.process-step .step-num {
  font-size: 14px;
  font-weight: 800;
  color: var(--amber);
  letter-spacing: 0.08em;
  display: block;
  margin-bottom: 14px;
}

.process-step h3 {
  font-size: 20px;
  margin: 0 0 12px;
  color: #FFFFFF;
  font-weight: 800;
}

.process-step p {
  margin: 0;
  color: rgba(220, 234, 229, 0.72);
  font-size: 14px;
  line-height: 1.8;
}

.note-panel {
  padding: 70px 0;
  background: var(--sand);
}

.note-content {
  display: grid;
  grid-template-columns: 100px minmax(0, 1fr);
  gap: 34px;
  align-items: start;
  max-width: 920px;
}

.note-mark {
  font-size: 52px;
  font-weight: 900;
  color: var(--ink-teal);
  line-height: 1;
}

.note-content blockquote {
  margin: 0;
}

.note-content blockquote p {
  margin: 0 0 14px;
  font-size: 20px;
  font-weight: 700;
  line-height: 1.7;
  color: var(--ink-deep);
}

.note-content blockquote span {
  font-size: 15px;
  color: var(--muted);
  line-height: 1.8;
}

.faq-block {
  padding: 90px 0;
  background: var(--paper);
}

.faq-block .container {
  max-width: 980px;
}

.faq-title-wrap {
  text-align: center;
  margin-bottom: 50px;
}

.faq-title-wrap .section-kicker {
  color: var(--coral);
}

.faq-title-wrap h2 {
  font-size: clamp(1.6rem, 2.6vw, 2.2rem);
  color: var(--ink-deep);
  margin: 0;
  line-height: 1.3;
}

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

.faq-item {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: box-shadow .25s ease, border-color .25s ease;
}

.faq-item[open] {
  box-shadow: var(--shadow-sm);
  border-color: rgba(15, 76, 74, 0.4);
}

.faq-item summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  list-style: none;
  cursor: pointer;
  padding: 20px 24px;
  font-size: 16px;
  font-weight: 700;
  color: var(--ink-deep);
  transition: color .2s ease;
}

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

.faq-item summary .plus-icon {
  color: var(--amber);
  font-size: 24px;
  font-weight: 300;
  flex-shrink: 0;
  line-height: 1;
  transition: transform .25s ease;
}

.faq-item[open] summary .plus-icon {
  color: var(--coral);
  transform: rotate(45deg);
}

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

.faq-body {
  padding: 0 24px 22px;
  color: #4D5F5A;
  font-size: 15px;
  line-height: 1.8;
}

.cta-banner {
  position: relative;
  padding: 86px 0;
  background: linear-gradient(120deg, #0B3B3A 0%, #14524D 100%);
  color: #FFFFFF;
  overflow: hidden;
}

.cta-banner::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(255, 255, 255, 0.16) 1px, transparent 1px);
  background-size: 22px 22px;
  opacity: 0.4;
}

.cta-inner {
  position: relative;
  max-width: 760px;
  text-align: center;
  margin: 0 auto;
}

.cta-inner h2 {
  font-size: clamp(1.6rem, 3vw, 2.6rem);
  margin: 0 0 18px;
  line-height: 1.3;
}

.cta-inner p {
  font-size: 17px;
  line-height: 1.9;
  color: rgba(235, 244, 239, 0.82);
  margin: 0 0 34px;
}

.cta-actions {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 16px;
}

.footer {
  background: #082E2E;
  color: #C7D6D3;
  padding-top: 70px;
}

.footer-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) minmax(0, 0.75fr) minmax(0, 0.85fr) minmax(0, 1fr);
  gap: 46px;
  padding-bottom: 48px;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 20px;
  font-weight: 800;
  color: #fff;
  margin-bottom: 16px;
}

.footer-logo .logo-symbol {
  width: 34px;
  height: 34px;
}

.footer-desc {
  font-size: 14px;
  line-height: 1.9;
  color: rgba(220, 234, 229, 0.72);
  margin: 0;
}

.footer-title {
  font-size: 15px;
  color: #fff;
  margin: 0 0 18px;
  font-weight: 700;
}

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

.footer-links a {
  color: rgba(220, 234, 229, 0.78);
  font-size: 14px;
  transition: color .2s ease;
}

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

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding: 20px 0;
  font-size: 13px;
  color: rgba(220, 234, 229, 0.6);
}

@media (max-width: 900px) {
  .main-nav {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    width: min(82vw, 360px);
    background: var(--ink-deep);
    box-shadow: -20px 0 50px rgba(0, 0, 0, 0.26);
    flex-direction: column;
    justify-content: center;
    align-items: stretch;
    gap: 4px;
    padding: 32px 30px;
    transform: translateX(100%);
    transition: transform .3s ease;
    z-index: 120;
  }

  .main-nav.open {
    transform: translateX(0);
  }

  .nav-link {
    font-size: 18px;
    padding: 12px;
    height: auto;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  }

  .nav-link:hover {
    border-bottom-color: rgba(255, 255, 255, 0.08);
  }

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

  .header-cta {
    display: none;
  }

  .nav-wrap {
    height: 64px;
  }

  .hero-inner {
    grid-template-columns: 1fr;
    gap: 44px;
    padding-top: 130px;
    padding-bottom: 70px;
  }

  .hero-visual-image img {
    height: 260px;
  }

  .hero-note-card {
    left: 10px;
    bottom: 16px;
    max-width: 220px;
  }

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

  .stat-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 10px 22px;
  }

  .catalog-head {
    flex-direction: column;
    align-items: flex-start;
    gap: 18px;
  }

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

  .spotlight-card .spot-media {
    min-height: 280px;
  }

  .spot-body {
    padding: 10px 22px 28px;
  }

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

  .process-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px 22px;
  }

  .note-content {
    grid-template-columns: 64px 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 40px 34px;
  }
}

@media (max-width: 640px) {
  .container {
    padding-left: 18px;
    padding-right: 18px;
  }

  .intro-strip,
  .ip-catalog,
  .faq-block {
    padding: 66px 0 68px;
  }

  .process-block {
    padding: 66px 0;
  }

  .category-hero {
    min-height: 0;
  }

  .hero-inner {
    padding-top: 120px;
    padding-bottom: 60px;
  }

  .page-h1 {
    font-size: clamp(1.8rem, 7vw, 2.4rem);
  }

  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }

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

  .hero-visual-image img {
    height: 220px;
  }

  .hero-note-card {
    position: relative;
    left: 0;
    top: 0;
    max-width: 100%;
    margin-top: 16px;
    bottom: auto;
    display: none;
  }

  .stat-grid {
    grid-template-columns: 1fr 1fr;
    gap: 24px 12px;
  }

  .stat-item {
    border-left: 0;
    border-top: 1px solid rgba(255, 255, 255, 0.18);
    padding: 16px 0 0;
    margin-top: 6px;
  }

  .stat-item .stat-number {
    font-size: 30px;
  }

  .spotlight-card .spot-media {
    min-height: 220px;
  }

  .spot-body {
    padding: 16px 18px 22px;
  }

  .spot-body h3 {
    font-size: 22px;
  }

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

  .process-step {
    min-height: 0;
  }

  .note-content {
    grid-template-columns: 1fr;
    gap: 18px;
  }

  .note-mark {
    font-size: 34px;
  }

  .note-content blockquote p {
    font-size: 17px;
  }

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

  .faq-item summary {
    padding: 17px 18px;
    font-size: 15px;
  }

  .faq-body {
    padding: 0 18px 18px;
    font-size: 14px;
  }
}

.reveal-up {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity .6s ease, transform .6s ease;
}

.reveal-up.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  .reveal-up {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

/* roulang page: category3 */
:root{
    --ink-deep:#0B3B3A;
    --ink-teal:#0F4C4A;
    --amber:#D99A3C;
    --coral:#F06449;
    --paper:#F7F4EE;
    --card:#FFFFFF;
    --sand:#EDE8DF;
    --ink-soft:#23403F;
    --muted:#64746F;
    --line:#D9D6CE;
    --shadow-sm:0 2px 10px rgba(11,59,58,.05);
    --shadow-md:0 16px 30px rgba(11,59,58,.12);
    --radius-lg:16px;
    --radius-xl:24px;
  }
  *,*:before,*:after{box-sizing:border-box;margin:0;padding:0}
  html{scroll-behavior:smooth}
  body{
    font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",-apple-system,BlinkMacSystemFont,sans-serif;
    background:var(--paper);
    color:var(--ink-soft);
    line-height:1.7;
    -webkit-font-smoothing:antialiased;
  }
  img{display:block;max-width:100%}
  a{text-decoration:none;color:inherit}
  ul,ol{list-style:none}
  button{font-family:inherit;border:none;background:none;cursor:pointer}
  .container{width:100%;max-width:1200px;margin:0 auto;padding-left:24px;padding-right:24px}
  section{scroll-margin-top:90px}
  :focus-visible{outline:3px solid rgba(217,154,60,.55);outline-offset:2px;border-radius:4px}
  .text-muted{color:var(--muted)}
  .text-amber{color:var(--amber)}
  .section-pad{padding:96px 0}
  .section-sub{color:var(--muted);font-size:1.0625rem}

  .eyebrow{
    display:inline-flex;align-items:center;gap:8px;
    font-size:.8125rem;letter-spacing:.12em;text-transform:uppercase;
    color:var(--amber);font-weight:600;
  }

  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    font-size:.9375rem;font-weight:600;line-height:1;
    padding:0 22px;height:44px;border-radius:10px;
    transition:background .2s ease,transform .2s ease,box-shadow .2s ease,color .2s ease;
    white-space:nowrap;
  }
  .btn:active{transform:translateY(1px) scale(.98)}
  .btn-primary{
    background:var(--coral);color:#fff;
  }
  .btn-primary:hover{background:#d9543e;box-shadow:var(--shadow-md)}
  .btn-light{
    background:rgba(255,255,255,.12);color:#fff;border:1px solid rgba(255,255,255,.16);
  }
  .btn-light:hover{background:rgba(255,255,255,.2);color:var(--amber)}
  .btn-outline{
    border:1px solid var(--line);background:var(--card);color:var(--ink-soft);
  }
  .btn-outline:hover{border-color:var(--ink-teal);color:var(--ink-teal)}
  .btn-ghost{
    background:transparent;color:var(--ink-soft);padding:0 6px;height:auto;
  }
  .btn-ghost:hover{color:var(--coral)}
  .arrow-link{
    display:inline-flex;align-items:center;gap:6px;font-weight:600;font-size:.9375rem;color:var(--ink-teal);
    transition:color .2s,gap .2s;
  }
  .arrow-link:hover{color:var(--amber);gap:10px}

  /* Header */
  .site-header{
    position:sticky;top:0;z-index:60;
    min-height:64px;
    background:rgba(11,59,58,.92);
    backdrop-filter:blur(12px);
    border-bottom:1px solid rgba(231,243,239,.08);
    transition:box-shadow .25s ease,background .25s ease;
  }
  .site-header.scrolled{background:rgba(8,46,46,.97);box-shadow:0 8px 22px rgba(0,0,0,.15)}
  .nav-wrap{display:flex;align-items:center;justify-content:space-between;min-height:64px;gap:20px}
  .nav-left{display:flex;align-items:center;gap:32px;flex:1;min-width:0}
  .logo{display:inline-flex;align-items:center;gap:10px;color:#fff;flex-shrink:0}
  .logo-symbol{
    width:34px;height:34px;display:inline-flex;align-items:center;justify-content:center;
    background:var(--amber);color:var(--ink-deep);border-radius:10px;
    font-weight:900;font-size:1rem;flex-shrink:0;
  }
  .logo-word{font-size:1.125rem;font-weight:900;letter-spacing:.02em;white-space:nowrap}
  .main-nav{display:flex;align-items:center;gap:26px;overflow-x:auto}
  .nav-link{
    display:inline-block;padding:22px 2px 20px;color:#EAF3EF;font-size:.9375rem;font-weight:500;
    border-bottom:2px solid transparent;line-height:1;transition:color .2s,border-color .2s;
  }
  .nav-link:hover{color:var(--amber);border-color:var(--amber)}
  .nav-link.active{color:var(--amber);border-color:var(--amber)}
  .nav-right{display:flex;align-items:center;gap:12px;flex-shrink:0}
  .search-link{
    width:36px;height:36px;display:inline-flex;align-items:center;justify-content:center;
    color:#EAF3EF;border:1px solid rgba(255,255,255,.12);border-radius:9px;
    transition:color .2s,border-color .2s;
  }
  .search-link:hover{color:var(--amber);border-color:var(--amber)}
  .nav-toggle{display:none;color:#fff;width:44px;height:44px;align-items:center;justify-content:center;border-radius:10px}

  @media (max-width:1024px){
    .nav-left{gap:18px}
    .main-nav{gap:18px}
  }
  @media (max-width:900px){
    .site-header,.nav-wrap{min-height:56px}
    .nav-wrap{min-height:56px}
    .nav-left{gap:12px}
    .nav-right{gap:6px}
    .nav-toggle{display:inline-flex}
    .header-cta{display:none}
    .main-nav{
      position:fixed;top:56px;left:0;right:0;bottom:0;z-index:59;
      background:rgba(8,46,46,.98);
      backdrop-filter:blur(12px);
      padding:30px 24px 50px;
      display:flex;flex-direction:column;align-items:flex-start;gap:2px;
      opacity:0;visibility:hidden;transform:translateY(-8px);
      transition:opacity .3s ease,transform .3s ease,visibility .3s ease;
    }
    .site-header.nav-open .main-nav{opacity:1;visibility:visible;transform:translateY(0)}
    .nav-link{
      width:100%;padding:14px 16px;border-left:3px solid transparent;border-bottom:0;
      font-size:1.125rem;border-radius:10px;color:#EAF3EF;
    }
    .nav-link:hover,.nav-link.active{background:rgba(255,255,255,.06);border-left-color:var(--amber);color:var(--amber)}
  }
  @media (max-width:480px){
    .logo-word{font-size:1rem}
    .container{padding-left:18px;padding-right:18px}
  }

  /* Page hero */
  .page-hero{
    background:
      linear-gradient(102deg,rgba(9,40,40,.96) 0%,rgba(11,59,58,.88) 48%,rgba(15,76,74,.78) 100%),
      url("/assets/images/backpic/back-3.webp") center/cover no-repeat;
    color:#fff;
    padding:88px 0 72px;
    border-bottom:3px solid rgba(217,154,60,.35);
  }
  .hero-crumb{
    display:inline-flex;align-items:center;gap:10px;font-size:.8125rem;
    color:rgba(231,243,239,.85);margin-bottom:30px;
  }
  .hero-crumb a{transition:color .2s}
  .hero-crumb a:hover{color:var(--amber)}
  .hero-title{
    font-size:clamp(1.9rem,3.6vw,3rem);
    font-weight:900;color:#fff;margin:16px 0 18px;line-height:1.24;
    letter-spacing:.02em;
  }
  .hero-text{max-width:620px;color:rgba(231,243,239,.9);font-size:1.0625rem;line-height:1.85;margin-bottom:30px}
  .hero-actions{display:flex;flex-wrap:wrap;gap:14px}
  .hero-panel{
    background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.14);
    border-radius:var(--radius-xl);padding:26px;backdrop-filter:blur(6px);
  }
  .hero-panel-title{font-size:1.0625rem;font-weight:700;color:#fff;margin-bottom:18px;display:flex;align-items:center;gap:8px}
  .hero-panel-item{display:flex;align-items:center;gap:12px;padding:12px 0;border-bottom:1px solid rgba(255,255,255,.1);color:rgba(231,243,239,.82);font-size:.9375rem}
  .hero-panel-item:last-child{border-bottom:0}
  .hero-panel-item em{font-style:normal;color:var(--amber);font-weight:700;min-width:32px}
  @media (max-width:768px){
    .page-hero{padding:58px 0 50px}
    .hero-panel{margin-top:30px}
  }

  /* Section head */
  .sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px}
  .sec-head h2{
    font-size:clamp(1.4rem,2.4vw,2.125rem);font-weight:900;color:var(--ink-deep);
    margin:12px 0 8px;letter-spacing:.02em;
  }
  .sec-head-line{width:44px;height:4px;background:var(--amber);border-radius:99px;margin-bottom:14px}
  .sec-head-text p{margin:0;max-width:640px;line-height:1.8;color:var(--muted)}
  .sec-head-sub{display:flex;flex-wrap:wrap;gap:8px}
  .sec-chip{
    background:var(--sand);color:var(--ink-soft);font-size:14px;border-radius:99px;
    padding:8px 14px;display:inline-flex;align-items:center;gap:6px;font-weight:500;
  }
  .sec-chip .dot{width:6px;height:6px;border-radius:99px;background:var(--amber)}
  @media (max-width:768px){
    .sec-head{flex-direction:column;align-items:flex-start;gap:16px}
  }

  /* Intro highlight */
  .intro-grid{display:grid;grid-template-columns:1.1fr 1fr;gap:40px;align-items:center}
  .intro-copy{font-size:1.0625rem;line-height:1.9;color:var(--ink-soft)}
  .intro-copy strong{color:var(--ink-deep)}
  .intro-list{display:flex;flex-direction:column;gap:14px}
  .intro-item{display:flex;gap:14px;background:var(--card);border:1px solid var(--line);padding:20px;border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);transition:box-shadow .2s ease,border-color .2s}
  .intro-item:hover{box-shadow:var(--shadow-md);border-color:var(--ink-teal)}
  .intro-num{font-size:1rem;font-weight:900;color:var(--amber);min-width:34px;height:34px;display:inline-flex;align-items:center;justify-content:center;background:var(--sand);border-radius:10px}
  .intro-item h3{font-size:1.0625rem;font-weight:700;color:var(--ink-deep);margin-bottom:6px}
  .intro-item p{font-size:.9375rem;color:var(--muted);line-height:1.6}
  @media (max-width:820px){.intro-grid{grid-template-columns:1fr}}

  /* Showcase gallery */
  .showcase-wrap{background:var(--card)}
  .showcase-grid{
    display:grid;grid-template-columns:repeat(6,1fr);gap:24px;
  }
  .showcase-card{
    grid-column:span 2;
    border-radius:var(--radius-lg);overflow:hidden;background:var(--card);
    border:1px solid var(--line);box-shadow:var(--shadow-sm);
    transition:box-shadow .3s ease,transform .3s ease;
    display:flex;flex-direction:column;
  }
  .showcase-card:hover{box-shadow:var(--shadow-md);transform:translateY(-5px)}
  .showcase-card.beam{grid-column:span 4;grid-row:span 2;flex-direction:column}
  .art-media{position:relative;overflow:hidden;aspect-ratio:4/3;background:var(--sand)}
  .art-media img{width:100%;height:100%;object-fit:cover;transition:transform .45s ease}
  .showcase-card:hover .art-media img{transform:scale(1.04)}
  .badge{
    position:absolute;top:16px;left:16px;z-index:2;
    display:inline-flex;align-items:center;gap:5px;
    background:rgba(11,59,58,.92);color:#fff;font-size:.75rem;font-weight:600;
    padding:5px 12px;border-radius:99px;letter-spacing:.04em;
  }
  .badge.hot{background:var(--coral)}
  .badge.classic{background:rgba(15,76,74,.94);border:1px solid rgba(255,255,255,.14)}
  .badge .mini-dot{width:6px;height:6px;border-radius:50%;background:var(--amber)}
  .badge.classic .mini-dot{background:#A6CFC3}
  .badge.hot .mini-dot{background:#fff}
  .art-body{padding:22px 20px 24px;display:flex;flex-direction:column;flex:1}
  .art-meta{display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:.8125rem;color:var(--muted);margin-bottom:12px}
  .art-meta .wave{color:var(--ink-teal);font-weight:600}
  .art-body h3{font-size:1.125rem;font-weight:800;color:var(--ink-deep);margin-bottom:8px;line-height:1.4;letter-spacing:.01em}
  .art-body p{font-size:.9375rem;line-height:1.72;color:var(--muted);margin-bottom:18px;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
  .art-link{font-weight:600;color:var(--ink-teal);display:inline-flex;align-items:center;gap:6px;font-size:.875rem;transition:color .2s}
  .art-link:hover{color:var(--amber);}
  .art-link:after{content:"→";transition:transform .2s ease;display:inline-block}
  .art-link:hover:after{transform:translateX(3px)}
  .showcase-load{grid-column:span 6;text-align:center;padding-top:20px}
  @media (max-width:1024px){
    .showcase-grid{grid-template-columns:repeat(2,1fr)}
    .showcase-card,.showcase-card.beam{grid-column:span 1;grid-row:auto}
  }
  @media (max-width:580px){
    .showcase-grid{grid-template-columns:1fr}
    .showcase-card,.showcase-card.beam{grid-column:span 1}
  }

  /* Feature band */
  .feature-band{
    background:
      linear-gradient(130deg,rgba(11,59,58,.9) 20%,rgba(15,76,74,.8) 90%),
      url("/assets/images/backpic/back-1.png") center/cover no-repeat;
    border-radius:var(--radius-xl);padding:60px 50px;color:#fff;
    display:grid;grid-template-columns:1.2fr .8fr;gap:44px;align-items:center;
  }
  .feature-band h2{font-size:clamp(1.4rem,2.4vw,2.125rem);font-weight:800;margin-bottom:15px;color:#fff}
  .feature-band p{max-width:560px;color:rgba(231,243,239,.88);font-size:1.0625rem;line-height:1.9}
  .feature-stat{display:grid;grid-template-columns:1fr 1fr;gap:18px}
  .feature-stat .stat-cell{
    background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.1);
    padding:22px;border-radius:var(--radius-lg);backdrop-filter:blur(5px);
  }
  .stat-cell b{font-size:1.7rem;color:var(--amber);display:block;line-height:1.2}
  .stat-cell span{font-size:.8125rem;color:rgba(231,243,239,.75);line-height:1.5;display:block;margin-top:6px}
  @media (max-width:820px){.feature-band{grid-template-columns:1fr;padding:40px 24px}}
  @media (max-width:480px){.feature-stat{grid-template-columns:1fr}}

  /* process */
  .process-wrap{background:var(--sand);border-radius:var(--radius-xl);padding:60px 50px}
  .process-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:28px;margin-top:36px}
  .process-step{
    position:relative;background:var(--card);padding:24px;border-radius:var(--radius-lg);
    box-shadow:var(--shadow-sm);border:1px solid var(--line);transition:box-shadow .3s ease,transform .3s ease;
  }
  .process-step:hover{box-shadow:var(--shadow-md);transform:translateY(-4px)}
  .step-no{font-size:1rem;font-weight:900;position:absolute;top:18px;right:18px;color:var(--line)}
  .step-ic{
    width:40px;height:40px;background:rgba(217,154,60,.15);display:inline-flex;align-items:center;
    justify-content:center;border-radius:12px;margin-bottom:18px;}
  .process-step h3{font-size:1.0625rem;font-weight:800;color:var(--ink-deep);margin-bottom:10px}
  .process-step p{font-size:.875rem;color:var(--muted);line-height:1.7;margin-bottom:0}
  @media (max-width:1024px){.process-grid{grid-template-columns:1fr 1fr}}
  @media (max-width:560px){.process-grid{grid-template-columns:1fr}.process-wrap{padding:34px 22px}}

  /* Faq */
  .faq-shell{max-width:900px;margin:0 auto}
  .faq-item{background:var(--card);border:1px solid var(--line);border-radius:var(--radius-lg);margin-bottom:12px;padding:0;overflow:hidden;transition:box-shadow .25s ease,border-color .25s ease}
  .faq-item[open]{box-shadow:var(--shadow-sm);border-color:var(--ink-teal)}
  .faq-q{
    list-style:none;display:flex;justify-content:space-between;align-items:center;
    font-size:1.0625rem;font-weight:700;color:var(--ink-deep);padding:20px 24px;line-height:1.5;
  }
  .faq-q::-webkit-details-marker{display:none}
  .faq-q .plus-ic{
    display:inline-flex;color:var(--amber);font-size:1.5rem;font-weight:500;transform:rotate(45deg);transition:transform .2s;line-height:1;
  }
  .faq-item[open] .plus-ic{transform:rotate(0deg)}
  .faq-a{padding:0 24px 20px;color:#4D5F5A;line-height:1.85;font-size:.9375rem}
  @media(max-width:480px){.faq-q{padding:18px 18px}.faq-a{padding-left:18px;padding-right:18px}}

  /* CTA */
  .cta-zone{
    background:var(--ink-deep);color:#fff;border-radius:var(--radius-xl);
    padding:64px 50px;text-align:center;position:relative;overflow:hidden;
  }
  .cta-zone:before{content:"";position:absolute;width:300px;height:300px;background:radial-gradient(circle,rgba(217,154,60,.12) 0%,rgba(217,154,60,0) 70%);top:-60px;right:-40px}
  .cta-zone h2{font-size:clamp(1.4rem,2.4vw,2.125rem);font-weight:900;color:#fff;max-width:700px;margin:0 auto 14px}
  .cta-zone .cta-copy{max-width:680px;margin:0 auto 30px;color:rgba(231,243,239,.8);font-size:1rem;line-height:1.8}
  .cta-actions{display:flex;justify-content:center;gap:14px;flex-wrap:wrap}

  /* Footer */
  .footer{background:#082E2E;color:#C7D6D3;padding-top:70px;font-size:.9375rem}
  .footer-grid{display:grid;grid-template-columns:1.5fr .8fr .8fr .9fr;gap:44px;padding-bottom:50px}
  .footer-logo{display:flex;align-items:center;gap:10px;color:#fff;font-weight:900;font-size:1.2rem;margin-bottom:18px}
  .footer-desc{color:rgba(199,214,211,.8);line-height:1.8;font-size:.875rem;max-width:300px}
  .footer-title{font-size:1rem;font-weight:700;color:#fff;margin-bottom:20px}
  .footer-links{display:flex;flex-direction:column;gap:10px}
  .footer-links a,.footer-links li{color:rgba(199,214,211,.8);font-size:.875rem;transition:color .2s}
  .footer-links a:hover{color:var(--amber)}
  .footer-bottom{border-top:1px solid rgba(255,255,255,.09);padding:20px 0;font-size:.8125rem;color:rgba(199,214,211,.6)}
  @media (max-width:900px){.footer-grid{grid-template-columns:1fr 1fr;gap:32px}}
  @media (max-width:520px){.footer-grid{grid-template-columns:1fr;gap:28px}}

/* roulang page: category4 */
:root {
    --ink-deep: #0B3B3A;
    --ink-teal: #0F4C4A;
    --amber: #D99A3C;
    --coral: #F06449;
    --paper: #F7F4EE;
    --card: #FFFFFF;
    --sand: #EDE8DF;
    --ink-soft: #23403F;
    --muted: #64746F;
    --line: #D9D6CE;
    --shadow-sm: 0 2px 10px rgba(11, 59, 58, 0.05);
    --shadow-lg: 0 16px 30px rgba(11, 59, 58, 0.12);
  }

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

  html {
    scroll-behavior: smooth;
  }

  body {
    font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    background: var(--paper);
    color: var(--ink-soft);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
    font-size: 17px;
  }

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

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

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

  ul,
  ol {
    list-style: none;
  }

  .container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding-left: 24px;
    padding-right: 24px;
  }

  .section {
    padding: 88px 0;
  }

  .section-sm {
    padding: 64px 0;
  }

  .section-sand {
    background: var(--sand);
  }

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

  .section-head h2 {
    color: var(--ink-deep);
    font-size: clamp(1.4rem, 2.4vw, 2.125rem);
    line-height: 1.25;
    font-weight: 900;
    margin-top: 10px;
  }

  .section-head p {
    color: var(--muted);
    margin-top: 14px;
  }

  .eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--amber);
    font-size: 0.8125rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    padding: 6px 12px;
    border: 1px solid rgba(217, 154, 60, 0.5);
    border-radius: 999px;
    background: rgba(217, 154, 60, 0.08);
    line-height: 1;
  }

  /* header/nav */
  .site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 80;
    height: 64px;
    display: flex;
    align-items: center;
    background: transparent;
    transition: background 0.35s ease, box-shadow 0.35s ease;
  }

  .site-header.is-scrolled {
    background: rgba(11, 59, 58, 0.96);
    box-shadow: 0 6px 24px rgba(11, 59, 58, 0.18);
  }

  .nav-wrap {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    width: 100%;
  }

  .nav-left {
    display: flex;
    align-items: center;
    gap: 32px;
    min-width: 0;
  }

  .nav-right {
    display: flex;
    align-items: center;
    gap: 14px;
    flex-shrink: 0;
  }

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

  .logo-symbol {
    width: 34px;
    height: 34px;
    border-radius: 10px;
    background: var(--amber);
    color: var(--ink-deep);
    font-size: 18px;
    font-weight: 900;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    line-height: 1;
    box-shadow: inset 0 -2px 0 rgba(11, 59, 58, 0.18);
  }

  .logo-word {
    color: #F1F7F4;
    font-size: 1.15rem;
    font-weight: 800;
    white-space: nowrap;
  }

  .main-nav {
    display: flex;
    align-items: center;
    gap: 28px;
  }

  .nav-link {
    position: relative;
    color: rgba(230, 242, 237, 0.82);
    font-size: 0.9375rem;
    font-weight: 500;
    padding: 8px 2px;
    transition: color 0.25s ease;
    white-space: nowrap;
  }

  .nav-link::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: 0;
    width: 100%;
    height: 2px;
    background: var(--amber);
    border-radius: 2px;
    transform: scaleX(0);
    transform-origin: left center;
    transition: transform 0.25s ease;
  }

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

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

  .nav-link.active {
    color: var(--amber);
  }

  .search-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    border-radius: 10px;
    color: #D7E4DF;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.12);
    transition: all 0.25s ease;
  }

  .search-link:hover {
    color: var(--amber);
    border-color: rgba(217, 154, 60, 0.55);
    background: rgba(217, 154, 60, 0.1);
  }

  .header-cta {
    background: var(--coral) !important;
    color: #fff !important;
  }

  .header-cta:hover {
    background: #D9543E !important;
  }

  .nav-toggle {
    display: none;
    width: 40px;
    height: 40px;
    border-radius: 10px;
    color: #E4EFEA;
    border: 1px solid rgba(255, 255, 255, 0.2);
    align-items: center;
    justify-content: center;
    cursor: pointer;
  }

  /* buttons */
  .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    height: 46px;
    padding: 0 22px;
    border-radius: 10px;
    font-size: 0.9375rem;
    font-weight: 700;
    cursor: pointer;
    transition: background 0.25s ease, border-color 0.25s ease, transform 0.25s ease, box-shadow 0.25s ease;
    border: 1px solid transparent;
    white-space: nowrap;
  }

  .btn:focus-visible {
    outline: 3px solid rgba(217, 154, 60, 0.5);
    outline-offset: 2px;
  }

  .btn-primary {
    background: var(--coral);
    color: #fff;
    box-shadow: 0 8px 18px rgba(240, 100, 73, 0.22);
  }

  .btn-primary:hover {
    background: #D9543E;
    transform: translateY(-2px);
    box-shadow: 0 12px 26px rgba(240, 100, 73, 0.3);
  }

  .btn-primary:active {
    transform: translateY(0);
    box-shadow: none;
  }

  .btn-outline-light {
    background: rgba(255, 255, 255, 0.06);
    border-color: rgba(255, 255, 255, 0.32);
    color: #EFF6F3;
  }

  .btn-outline-light:hover {
    border-color: var(--amber);
    color: var(--amber);
  }

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

  .btn-dark:hover {
    background: var(--ink-teal);
  }

  .btn-ghost-dark {
    border-color: var(--line);
    color: var(--ink-soft);
    background: #fff;
  }

  .btn-ghost-dark:hover {
    border-color: var(--ink-teal);
    color: var(--ink-teal);
    background: #F4F8F5;
  }

  /* category hero */
  .category-hero {
    position: relative;
    color: #F7FBF9;
    overflow: hidden;
    background-color: var(--ink-deep);
    min-height: 380px;
    padding: 128px 0 88px;
    display: flex;
    align-items: center;
    background-image: linear-gradient(90deg, rgba(255,255,255,0) 0%, rgba(11,59,58,0.4) 100%);
  }

  .category-hero .hero-bg {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.26;
    mix-blend-mode: luminosity;
  }

  .category-hero .hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(100deg, rgba(11,59,58,0.98) 8%, rgba(11,59,58,0.68) 58%, rgba(11,59,58,0.38) 100%);
    z-index: 1;
  }

  .category-hero .hero-content {
    position: relative;
    z-index: 2;
  }

  .category-hero h1 {
    font-size: clamp(1.9rem, 3.6vw, 3rem);
    line-height: 1.16;
    font-weight: 900;
    max-width: 760px;
    letter-spacing: -0.01em;
    margin-top: 16px;
    color: #fff;
  }

  .category-hero h1 .accent {
    color: var(--amber);
  }

  .category-hero .hero-lead {
    color: #C8DAD4;
    font-size: 1.05rem;
    max-width: 620px;
    margin-top: 18px;
    line-height: 1.8;
  }

  .hero-flex {
    display: flex;
    gap: 40px;
    align-items: center;
  }

  /* mini snapshot */
  .hero-snapshot {
    width: 360px;
    background: rgba(15, 76, 74, 0.58);
    border: 1px solid rgba(255, 255, 255, 0.18);
    border-radius: 20px;
    padding: 24px;
    backdrop-filter: blur(8px);
  }

  .hero-snapshot h3 {
    font-size: 0.8125rem;
    letter-spacing: 0.08em;
    color: var(--amber);
    font-weight: 700;
    border-bottom: 1px solid rgba(255, 255, 255, 0.14);
    padding-bottom: 12px;
    margin-bottom: 14px;
  }

  .hero-snapshot-list {
    display: flex;
    flex-direction: column;
    gap: 14px;
  }

  .hero-snapshot-list li {
    display: flex;
    gap: 10px;
    align-items: flex-start;
    font-size: 0.875rem;
    color: #E7F1EE;
  }

  .hero-snapshot-list i {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--amber);
    display: inline-block;
    margin-top: 9px;
    flex-shrink: 0;
  }

  /* stats strip */
  .stats-strip {
    background: #FFFFFF;
    border-bottom: 1px solid var(--line);
  }

  .stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
  }

  .stat-card {
    padding: 28px 8px;
    text-align: center;
    border-left: 1px solid var(--line);
  }

  .stat-card:first-child {
    border-left: none;
  }

  .stat-card strong {
    display: block;
    font-size: 2rem;
    font-weight: 900;
    color: var(--ink-deep);
    line-height: 1.1;
  }

  .stat-card small {
    display: block;
    color: var(--muted);
    font-size: 0.875rem;
    margin-top: 6px;
  }

  .stat-card .stat-mark {
    color: var(--amber);
    margin-left: 2px;
    font-size: 1.3rem;
    font-weight: 700;
  }

  /* cards */
  .dynamic-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
  }

  .dynamic-card {
    background: var(--card);
    border: 1px solid var(--line);
    border-radius: 18px;
    padding: 24px;
    box-shadow: var(--shadow-sm);
    transition: box-shadow 0.3s ease, transform 0.3s ease, border-color 0.3s ease;
    position: relative;
    overflow: hidden;
  }

  .dynamic-card::before {
    content: "";
    position: absolute;
    left: 0;
    top: 0;
    height: 4px;
    width: 100%;
    background: var(--ink-teal);
    opacity: 0;
    transition: opacity 0.3s ease;
  }

  .dynamic-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(15, 76, 74, 0.5);
  }

  .dynamic-card:hover::before {
    opacity: 1;
  }

  .dynamic-card em {
    font-style: normal;
    display: inline-block;
    color: var(--amber);
    font-size: 0.8125rem;
    font-weight: 800;
    letter-spacing: 0.06em;
    margin-bottom: 14px;
  }

  .dynamic-card h3 {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--ink-deep);
    margin-bottom: 10px;
  }

  .dynamic-card p {
    color: var(--muted);
    font-size: 0.906rem;
    line-height: 1.65;
  }

  /* timeline */
  .timeline {
    position: relative;
    padding: 8px 0 24px;
  }

  .timeline::before {
    content: "";
    position: absolute;
    top: 0;
    bottom: 0;
    left: 50%;
    width: 2px;
    background: linear-gradient(180deg, rgba(217, 154, 60, 0.25), rgba(15, 76, 74, 0.5), rgba(217, 154, 60, 0.25));
    transform: translateX(-1px);
  }

  .timeline-item {
    position: relative;
    width: 50%;
    padding-right: 52px;
    margin-bottom: 44px;
  }

  .timeline-item:nth-child(even) {
    margin-left: 50%;
    padding-right: 0;
    padding-left: 52px;
  }

  .timeline-marker {
    position: absolute;
    right: -9px;
    top: 28px;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--amber);
    border: 4px solid #fff;
    box-shadow: 0 0 0 2px var(--amber);
    z-index: 2;
  }

  .timeline-item:nth-child(even) .timeline-marker {
    right: auto;
    left: -9px;
  }

  .timeline-card {
    display: flex;
    gap: 18px;
    background: #fff;
    border-radius: 18px;
    border: 1px solid var(--line);
    box-shadow: var(--shadow-sm);
    padding: 14px;
    transition: box-shadow 0.3s ease, transform 0.3s ease, border-color 0.3s ease;
    cursor: default;
  }

  .timeline-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-3px);
    border-color: rgba(15, 76, 74, 0.42);
  }

  .timeline-pic {
    width: 132px;
    height: 120px;
    border-radius: 14px;
    overflow: hidden;
    flex-shrink: 0;
    background-color: var(--sand);
  }

  .timeline-pic img {
    width: 100%;
    height: 100%;
    object-fit: cover;
  }

  .timeline-info {
    min-width: 0;
  }

  .timeline-date {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 800;
    color: var(--amber);
    letter-spacing: 0.04em;
    margin-bottom: 6px;
    padding: 4px 8px;
    background: #FCF3E4;
    border-radius: 6px;
  }

  .timeline-info h3 {
    color: var(--ink-deep);
    font-size: 1.0625rem;
    font-weight: 700;
    line-height: 1.4;
    margin-bottom: 6px;
  }

  .timeline-info p {
    font-size: 0.875rem;
    color: var(--muted);
    line-height: 1.7;
  }

  /* announcement list block */
  .announce-panel {
    display: grid;
    grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
    gap: 40px;
    align-items: center;
  }

  .panel-pic {
    border-radius: 24px;
    overflow: hidden;
    min-height: 280px;
    background: var(--ink-deep);
    box-shadow: var(--shadow-sm);
  }

  .panel-pic img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    min-height: 280px;
  }

  .announce-entry {
    display: flex;
    gap: 14px;
    border-bottom: 1px solid var(--line);
    padding: 18px 0;
  }

  .announce-entry:last-child {
    border-bottom: none;
    padding-bottom: 0;
  }

  .announce-num {
    font-size: 1.375rem;
    font-weight: 900;
    color: var(--amber);
    line-height: 1;
    width: 40px;
    flex-shrink: 0;
  }

  .announce-entry h4 {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--ink-deep);
    line-height: 1.45;
    margin-bottom: 4px;
  }

  .announce-entry p {
    color: var(--muted);
    font-size: 0.875rem;
    line-height: 1.7;
  }

  /* index boxes */
  .category-index-cards {
    background: #FFFFFF;
    border-radius: 24px;
    border: 1px solid var(--line);
    padding: 32px;
    box-shadow: var(--shadow-sm);
  }

  .index-link {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 18px 4px;
    border-bottom: 1px solid var(--line);
    transition: padding 0.3s ease;
  }

  .index-link:last-of-type {
    border-bottom: none;
  }

  .index-link:hover {
    padding-left: 10px;
  }

  .index-link .index-text {
    display: block;
  }

  .index-link h3 {
    font-size: 1.06rem;
    font-weight: 700;
    color: var(--ink-deep);
    transition: color 0.25s ease;
  }

  .index-link:hover h3 {
    color: var(--amber);
  }

  .index-link p {
    font-size: 0.875rem;
    color: var(--muted);
    margin-top: 2px;
  }

  .index-arrow {
    color: var(--amber);
    font-weight: 800;
    font-size: 1.25rem;
    flex-shrink: 0;
    transition: transform 0.25s ease;
  }

  .index-link:hover .index-arrow {
    transform: translateX(4px);
  }

  /* faq */
  .faq-list {
    display: grid;
    gap: 12px;
    max-width: 900px;
    margin: 0 auto;
  }

  .faq-item {
    background: #fff;
    border: 1px solid var(--line);
    border-radius: 16px;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
  }

  .faq-item[open] {
    border-color: rgba(15, 76, 74, 0.4);
    box-shadow: var(--shadow-sm);
  }

  .faq-item summary {
    list-style: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 18px 22px;
    font-weight: 700;
    color: var(--ink-deep);
    font-size: 1.0625rem;
  }

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

  .faq-summary-icon {
    flex-shrink: 0;
    width: 30px;
    height: 30px;
    border-radius: 50%;
    border: 2px solid var(--amber);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: var(--amber);
    font-size: 1.25rem;
    font-weight: 500;
  }

  .faq-item summary .icon-plus {
    display: block;
  }

  .faq-item summary .icon-minus {
    display: none;
  }

  .faq-item[open] summary .icon-plus {
    display: none;
  }

  .faq-item[open] summary .icon-minus {
    display: block;
  }

  .faq-item .answer {
    padding: 0 22px 20px;
    color: #4D5F5A;
    line-height: 1.75;
    font-size: 0.9375rem;
  }

  /* cta block */
  .cta-deep {
    background:
      linear-gradient(115deg, rgba(11, 59, 58, 0.96), rgba(15, 76, 74, 0.85)),
      url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
    border-radius: 28px;
    padding: 68px 44px;
    color: #fff;
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
  }

  .cta-deep h2 {
    font-size: clamp(1.5rem, 2.8vw, 2.2rem);
    font-weight: 900;
    line-height: 1.3;
    max-width: 640px;
  }

  .cta-deep p {
    color: #C8DAD4;
    margin-top: 12px;
    max-width: 540px;
    line-height: 1.75;
  }

  /* footer */
  .footer {
    background: #082E2E;
    color: #C7D6D3;
    padding: 72px 0 0;
    margin-top: 80px;
  }

  .footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
    gap: 44px;
    padding-bottom: 44px;
  }

  .footer-logo {
    font-weight: 800;
    font-size: 1.35rem;
    color: #fff;
    display: inline-flex;
    gap: 12px;
    align-items: center;
  }

  .footer-desc {
    color: #9AB7B1;
    font-size: 0.9375rem;
    line-height: 1.75;
    margin-top: 16px;
  }

  .footer-title {
    font-size: 0.9375rem;
    color: #F1F7F4;
    font-weight: 700;
    margin-bottom: 16px;
  }

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

  .footer-links a,
  .footer-links li {
    color: #B7CCC7;
    font-size: 0.906rem;
    transition: color 0.2s ease;
  }

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

  .footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding: 20px 0;
    font-size: 0.8125rem;
    color: #8AA8A2;
  }

  /* mobile drawer */
  .mobile-drawer {
    display: none;
    position: fixed;
    top: 0;
    right: 0;
    width: min(78vw, 360px);
    height: 100vh;
    background: var(--ink-deep);
    z-index: 90;
    padding: 80px 28px 32px;
    transform: translateX(100%);
    transition: transform 0.35s ease;
    box-shadow: -18px 0 44px rgba(11, 59, 58, 0.28);
  }

  .mobile-drawer.open {
    transform: translateX(0);
  }

  .drawer-close {
    position: absolute;
    top: 18px;
    right: 18px;
    width: 42px;
    height: 42px;
    display: flex;
    justify-content: center;
    align-items: center;
    border-radius: 50%;
    color: #E8F2EE;
    background: rgba(255, 255, 255, 0.08);
    cursor: pointer;
  }

  .mobile-drawer .mobile-nav-links {
    display: flex;
    flex-direction: column;
    gap: 6px;
    margin-top: 18px;
  }

  .mobile-drawer .mobile-nav-links a {
    color: #E3EFEA;
    font-size: 1.125rem;
    font-weight: 600;
    padding: 12px 16px;
    border-radius: 12px;
    transition: background 0.2s ease, color 0.2s ease;
    display: block;
  }

  .mobile-drawer .mobile-nav-links a:hover,
  .mobile-drawer .mobile-nav-links a.active {
    background: rgba(217, 154, 60, 0.16);
    color: var(--amber);
  }

  .drawer-tint {
    display: none;
    background: rgba(0, 0, 0, 0.5);
    position: fixed;
    inset: 0;
    z-index: 85;
  }

  /* responsive */
  @media (max-width: 1024px) {
    .main-nav {
      gap: 18px;
    }

    .nav-link {
      font-size: 0.875rem;
    }

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

    .stats-grid {
      grid-template-columns: repeat(2, 1fr);
      row-gap: 8px;
    }

    .stat-card {
      border-left: none;
      border-bottom: 1px solid var(--line);
    }

    .stat-card:nth-child(3),
    .stat-card:nth-child(4) {
      border-bottom: none;
    }

    .hero-flex {
      display: block;
    }

    .hero-snapshot {
      margin-top: 28px;
      width: 100%;
    }
  }

  @media (max-width: 767px) {
    .section {
      padding: 56px 0;
    }

    .main-nav {
      display: none;
    }

    .header-cta {
      display: none;
    }

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

    .site-header {
      height: 56px;
    }

    .category-hero {
      min-height: 500px;
      padding: 96px 0 64px;
      align-items: stretch;
    }

    .logo-word {
      font-size: 1rem;
    }

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

    .stat-card strong {
      font-size: 1.5rem;
    }

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

    .announce-panel {
      grid-template-columns: 1fr;
      gap: 24px;
    }

    .footer-grid {
      grid-template-columns: 1fr;
      gap: 36px;
    }

    .timeline::before {
      left: 14px;
    }

    .timeline-item,
    .timeline-item:nth-child(even) {
      width: 100%;
      margin-left: 0;
      padding: 0 0 0 44px;
    }

    .timeline-marker,
    .timeline-item:nth-child(even) .timeline-marker {
      left: 5px;
      right: auto;
    }

    .timeline-card {
      flex-direction: column;
    }

    .timeline-pic {
      width: 100%;
      height: 170px;
    }

    .cta-deep {
      padding: 44px 22px;
      border-radius: 22px;
    }

    .footer {
      margin-top: 56px;
    }

    .category-index-cards {
      padding: 22px;
    }
  }

  @media (max-width: 480px) {
    .dynamic-grid {
      grid-template-columns: 1fr;
    }

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

    .stat-card {
      border-bottom: 1px solid var(--line);
    }

    .stat-card:last-child {
      border-bottom: none;
    }
  }