/* roulang page: index */
:root {
  --ink: #252321;
  --ink-soft: #514b47;
  --muted: #7b736e;
  --paper: #fbfaf8;
  --surface: #ffffff;
  --mist: #f1efec;
  --line: #ded9d4;
  --line-strong: #c9c1bb;
  --clay: #a64f42;
  --clay-dark: #80392f;
  --clay-pale: #f3e4df;
  --green: #35634d;
  --green-pale: #e7f0e9;
  --radius-sm: 6px;
  --radius-md: 9px;
  --shadow-sm: 0 8px 24px rgba(38, 31, 26, .06);
  --shadow-md: 0 18px 40px rgba(38, 31, 26, .10);
  --max: 1200px;
  --ease: 180ms ease;
}
*,
*::before,
*::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: "Noto Sans SC", "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}
body.menu-open { overflow: hidden; }
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button,
input,
select,
textarea { font: inherit; }
button { cursor: pointer; }
.container {
  width: min(var(--max), calc(100% - 48px));
  margin: 0 auto;
}
.skip-link {
  position: fixed;
  left: 18px;
  top: -60px;
  z-index: 100;
  padding: 9px 14px;
  color: #fff;
  background: var(--ink);
  border-radius: var(--radius-sm);
}
.skip-link:focus { top: 14px; }
.notice-bar {
  min-height: 42px;
  display: flex;
  align-items: center;
  color: #68483f;
  background: #f5e8dc;
  border-bottom: 1px solid #ead6c9;
  font-size: 13px;
}
.notice-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}
.notice-copy { display: flex; align-items: center; gap: 9px; }
.notice-mark {
  width: 20px;
  height: 20px;
  display: inline-grid;
  place-items: center;
  color: #fff;
  background: var(--clay);
  border-radius: 50%;
  font-size: 12px;
  font-weight: 700;
}
.notice-link {
  color: var(--clay-dark);
  font-weight: 700;
  white-space: nowrap;
}
.notice-link:hover,
.notice-link:focus { text-decoration: underline; }
.site-header {
  position: sticky;
  top: 0;
  z-index: 30;
  background: rgba(251, 250, 248, .96);
  border-bottom: 1px solid var(--line);
  transition: box-shadow var(--ease);
}
.site-header.scrolled { box-shadow: 0 4px 18px rgba(38, 31, 26, .08); }
.nav-wrap {
  min-height: 78px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 26px;
}
.logo {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  min-width: 230px;
  color: var(--ink);
  font-weight: 800;
  line-height: 1.2;
}
.logo-badge {
  width: 38px;
  height: 38px;
  display: inline-grid;
  place-items: center;
  color: #fff;
  background: var(--ink);
  border-radius: 8px;
  font-size: 13px;
  letter-spacing: 0;
}
.logo-name { font-size: 16px; }
.logo-name small {
  display: block;
  margin-top: 3px;
  color: var(--muted);
  font-size: 11px;
  font-weight: 500;
}
.main-nav { display: flex; align-items: center; gap: 5px; }
.main-nav a {
  position: relative;
  padding: 26px 14px 24px;
  color: var(--ink-soft);
  font-size: 14px;
  font-weight: 650;
}
.main-nav a::after {
  content: "";
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: 17px;
  height: 2px;
  background: var(--clay);
  transform: scaleX(0);
  transition: transform var(--ease);
}
.main-nav a:hover,
.main-nav a:focus,
.main-nav a.active { color: var(--ink); }
.main-nav a:hover::after,
.main-nav a:focus::after,
.main-nav a.active::after { transform: scaleX(1); }
.nav-action { flex: 0 0 auto; }
.menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  color: var(--ink);
  background: transparent;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-sm);
}
.menu-toggle span,
.menu-toggle span::before,
.menu-toggle span::after {
  display: block;
  width: 18px;
  height: 2px;
  margin: auto;
  background: currentColor;
  transition: transform var(--ease);
}
.menu-toggle span::before,
.menu-toggle span::after { content: ""; }
.menu-toggle span::before { transform: translateY(-6px); }
.menu-toggle span::after { transform: translateY(4px); }
.btn {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 9px 18px;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  font-weight: 700;
  line-height: 1.3;
  transition: transform var(--ease), background var(--ease), border-color var(--ease), box-shadow var(--ease), color var(--ease);
}
.btn:focus,
.menu-toggle:focus,
input:focus,
select:focus,
textarea:focus,
.faq-question:focus { outline: 3px solid rgba(166, 79, 66, .25); outline-offset: 2px; }
.btn-primary { color: #fff; background: var(--clay); }
.btn-primary:hover { background: var(--clay-dark); transform: translateY(-2px); box-shadow: 0 8px 16px rgba(128, 57, 47, .16); }
.btn-primary:active { transform: translateY(0); filter: brightness(.94); }
.btn-dark { color: #fff; background: var(--ink); }
.btn-dark:hover { background: #403a36; transform: translateY(-2px); }
.btn-outline { color: var(--clay-dark); background: transparent; border-color: var(--line-strong); }
.btn-outline:hover { border-color: var(--clay); background: var(--clay-pale); }
.btn-text {
  min-height: auto;
  padding: 0;
  color: var(--clay-dark);
  background: transparent;
}
.btn-text:hover { text-decoration: underline; }
.hero {
  position: relative;
  overflow: hidden;
  min-height: 610px;
  display: flex;
  align-items: center;
  background: var(--ink);
  isolation: isolate;
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -2;
  background: url("/assets/images/backpic/back-1.webp") center / cover no-repeat;
  opacity: .34;
}
.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: linear-gradient(90deg, rgba(37, 35, 33, .98) 0%, rgba(37, 35, 33, .86) 47%, rgba(37, 35, 33, .56) 100%);
}
.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 7fr) minmax(310px, 5fr);
  align-items: center;
  gap: 82px;
  padding: 84px 0 98px;
}
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 20px;
  color: #e6a99d;
  font-size: 13px;
  font-weight: 800;
  letter-spacing: .08em;
}
.eyebrow::before {
  content: "";
  width: 25px;
  height: 2px;
  background: var(--clay);
}
.hero h1 {
  max-width: 720px;
  margin: 0;
  color: #fff;
  font-size: clamp(36px, 5vw, 64px);
  line-height: 1.16;
  letter-spacing: 0;
}
.hero-lead {
  max-width: 650px;
  margin: 25px 0 32px;
  color: #d8d1cd;
  font-size: 17px;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; }
.hero .btn-outline {
  color: #fff;
  border-color: rgba(255,255,255,.42);
}
.hero .btn-outline:hover { color: #fff; background: rgba(255,255,255,.12); border-color: #fff; }
.access-panel {
  padding: 30px;
  color: var(--ink);
  background: rgba(251, 250, 248, .97);
  border: 1px solid rgba(255,255,255,.35);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
}
.access-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  padding-bottom: 22px;
  border-bottom: 1px solid var(--line);
}
.access-top h2 { margin: 0; font-size: 20px; line-height: 1.35; }
.age-mark {
  min-width: 58px;
  padding: 9px 7px;
  color: #fff;
  background: var(--clay);
  border-radius: var(--radius-sm);
  text-align: center;
  font-size: 20px;
  font-weight: 850;
  line-height: 1.1;
}
.age-mark small { display: block; margin-top: 3px; font-size: 10px; letter-spacing: .08em; }
.access-list { display: grid; gap: 17px; margin: 22px 0 0; }
.access-item { display: grid; grid-template-columns: 25px 1fr; gap: 11px; }
.access-icon {
  width: 25px;
  height: 25px;
  display: grid;
  place-items: center;
  color: var(--green);
  background: var(--green-pale);
  border-radius: 50%;
  font-size: 13px;
  font-weight: 800;
}
.access-item strong { display: block; font-size: 14px; line-height: 1.35; }
.access-item span { display: block; margin-top: 3px; color: var(--muted); font-size: 13px; line-height: 1.55; }
.section { padding: 96px 0; }
.section-muted { background: var(--mist); }
.section-heading { max-width: 680px; margin-bottom: 42px; }
.section-heading.split {
  max-width: none;
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 30px;
}
.section-kicker {
  margin-bottom: 12px;
  color: var(--clay-dark);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: .08em;
}
.section-heading h2 {
  margin: 0;
  font-size: clamp(28px, 3vw, 42px);
  line-height: 1.25;
}
.section-heading p { margin: 14px 0 0; color: var(--muted); }
.rule-grid {
  display: grid;
  grid-template-columns: 1.08fr .92fr;
  gap: 58px;
  align-items: start;
}
.rule-intro {
  padding: 35px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
}
.rule-intro img {
  width: 100%;
  aspect-ratio: 16 / 9;
  margin-bottom: 26px;
  border-radius: var(--radius-sm);
  object-fit: cover;
}
.rule-intro h3 { margin: 0 0 10px; font-size: 23px; line-height: 1.4; }
.rule-intro p { margin: 0; color: var(--ink-soft); }
.step-list { margin: 0; padding: 0; list-style: none; }
.step-list li {
  position: relative;
  display: grid;
  grid-template-columns: 48px 1fr;
  gap: 18px;
  padding: 0 0 29px;
}
.step-list li:not(:last-child)::after {
  content: "";
  position: absolute;
  left: 23px;
  top: 48px;
  bottom: 0;
  width: 1px;
  background: var(--line-strong);
}
.step-number {
  position: relative;
  z-index: 1;
  width: 48px;
  height: 48px;
  display: grid;
  place-items: center;
  color: var(--clay-dark);
  background: var(--clay-pale);
  border: 1px solid #e5c8c0;
  border-radius: 50%;
  font-weight: 800;
}
.step-list h3 { margin: 2px 0 5px; font-size: 18px; }
.step-list p { margin: 0; color: var(--muted); font-size: 14px; line-height: 1.65; }
.info-band {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--line-strong);
  border-bottom: 1px solid var(--line-strong);
}
.info-cell { padding: 22px 24px; border-right: 1px solid var(--line); }
.info-cell:last-child { border-right: 0; }
.info-cell b { display: block; color: var(--clay-dark); font-size: 25px; line-height: 1.2; }
.info-cell span { display: block; margin-top: 5px; color: var(--muted); font-size: 13px; }
.news-section { background: var(--paper); }
.news-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(300px, .85fr);
  gap: 26px;
}
.news-feature,
.news-item {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  transition: transform var(--ease), box-shadow var(--ease), border-color var(--ease);
}
.news-feature { overflow: hidden; }
.news-feature:hover,
.news-item:hover { border-color: #bda49d; box-shadow: var(--shadow-sm); transform: translateY(-2px); }
.news-feature img {
  width: 100%;
  aspect-ratio: 16 / 8;
  object-fit: cover;
}
.news-feature-content { padding: 28px 30px 31px; }
.news-item-list { display: grid; gap: 12px; }
.news-item { padding: 21px 22px; }
.news-meta,
.news-item-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 9px;
  color: var(--muted);
  font-size: 12px;
}
.badge {
  display: inline-flex;
  align-items: center;
  min-height: 24px;
  padding: 2px 8px;
  color: var(--clay-dark);
  background: var(--clay-pale);
  border: 1px solid #e6cdc6;
  border-radius: 5px;
  font-size: 12px;
  line-height: 1.3;
}
.news-feature h3 { margin: 15px 0 8px; font-size: 25px; line-height: 1.4; }
.news-item h3 { margin: 9px 0 6px; font-size: 16px; line-height: 1.5; }
.news-feature p,
.news-item p {
  display: -webkit-box;
  overflow: hidden;
  -webkit-box-orient: vertical;
  color: var(--muted);
  font-size: 14px;
}
.news-feature p { -webkit-line-clamp: 3; margin: 0 0 19px; }
.news-item p { -webkit-line-clamp: 2; margin: 0; line-height: 1.6; }
.read-link { color: var(--clay-dark); font-size: 13px; font-weight: 800; }
.read-link:hover { text-decoration: underline; }
.empty-state {
  display: flex;
  min-height: 220px;
  align-items: center;
  justify-content: center;
  padding: 30px;
  color: var(--muted);
  text-align: center;
  background: var(--surface);
  border: 1px dashed var(--line-strong);
  border-radius: var(--radius-md);
}
.check-layout {
  display: grid;
  grid-template-columns: .8fr 1.2fr;
  gap: 70px;
  align-items: start;
}
.check-copy h2 { margin: 0; font-size: 34px; line-height: 1.3; }
.check-copy p { margin: 16px 0 0; color: var(--muted); }
.check-list { margin: 27px 0 0; padding: 0; list-style: none; }
.check-list li {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  padding: 13px 0;
  border-bottom: 1px solid var(--line);
  color: var(--ink-soft);
}
.check-list li::before {
  content: "✓";
  flex: 0 0 22px;
  width: 22px;
  height: 22px;
  display: grid;
  place-items: center;
  color: var(--green);
  background: var(--green-pale);
  border-radius: 50%;
  font-size: 12px;
  font-weight: 800;
}
.risk-board {
  display: grid;
  grid-template-columns: 1fr 1fr;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  overflow: hidden;
}
.risk-block { padding: 29px; background: var(--surface); }
.risk-block + .risk-block { background: #f6eae5; border-left: 1px solid var(--line); }
.risk-block h3 { margin: 0 0 13px; font-size: 18px; }
.risk-block p { margin: 0; color: var(--muted); font-size: 14px; }
.risk-label {
  display: inline-block;
  margin-bottom: 19px;
  color: var(--green);
  font-size: 12px;
  font-weight: 800;
}
.risk-block + .risk-block .risk-label { color: var(--clay-dark); }
.faq-wrap { max-width: 850px; margin: 0 auto; }
.faq-list { border-top: 1px solid var(--line-strong); }
.faq-item { border-bottom: 1px solid var(--line-strong); }
.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 22px 4px;
  color: var(--ink);
  background: transparent;
  border: 0;
  text-align: left;
  font-weight: 750;
}
.faq-symbol {
  flex: 0 0 25px;
  color: var(--clay);
  font-size: 24px;
  font-weight: 400;
  line-height: 1;
}
.faq-answer { display: none; padding: 0 48px 23px 4px; color: var(--muted); font-size: 14px; }
.faq-item.open .faq-answer { display: block; }
.faq-item.open .faq-symbol { font-size: 0; }
.faq-item.open .faq-symbol::after { content: "−"; font-size: 24px; }
.feedback-section { background: var(--mist); }
.feedback-layout {
  display: grid;
  grid-template-columns: .85fr 1.15fr;
  gap: 74px;
  align-items: start;
}
.feedback-copy h2 { margin: 0; font-size: 34px; line-height: 1.3; }
.feedback-copy p { margin: 15px 0 0; color: var(--muted); }
.feedback-contact {
  display: flex;
  gap: 10px;
  align-items: center;
  margin-top: 28px;
  color: var(--clay-dark);
  font-weight: 700;
}
.feedback-form {
  padding: 31px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
}
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.field { display: flex; flex-direction: column; gap: 7px; }
.field.full { grid-column: 1 / -1; }
.field label { color: var(--ink-soft); font-size: 13px; font-weight: 750; }
.field input,
.field select,
.field textarea {
  width: 100%;
  color: var(--ink);
  background: #fff;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-sm);
  padding: 10px 12px;
  transition: border-color var(--ease), box-shadow var(--ease);
}
.field input,
.field select { height: 45px; }
.field textarea { min-height: 120px; resize: vertical; }
.field input::placeholder,
.field textarea::placeholder { color: #aaa19b; }
.field input:focus,
.field select:focus,
.field textarea:focus { border-color: var(--clay); box-shadow: 0 0 0 3px rgba(166,79,66,.1); outline: 0; }
.consent { display: flex; gap: 9px; align-items: flex-start; margin: 18px 0 21px; color: var(--muted); font-size: 12px; line-height: 1.6; }
.consent input { width: 17px; height: 17px; margin-top: 2px; accent-color: var(--clay); }
.form-status { min-height: 25px; margin-top: 13px; color: var(--green); font-size: 13px; }
.cta-section { padding: 72px 0; background: var(--ink); }
.cta-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 35px;
}
.cta-inner h2 { margin: 0; color: #fff; font-size: 31px; line-height: 1.35; }
.cta-inner p { margin: 9px 0 0; color: #bdb5b0; }
.cta-side { display: flex; flex-wrap: wrap; align-items: center; gap: 20px; }
.cta-side .btn-text { color: #e8b4a9; }
.site-footer { padding: 55px 0 24px; color: #c2bbb6; background: #302d2a; }
.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.15fr;
  gap: 42px;
  padding-bottom: 42px;
  border-bottom: 1px solid rgba(255,255,255,.13);
}
.footer-logo { color: #fff; }
.footer-logo .logo-badge { background: var(--clay); }
.footer-copy { max-width: 330px; margin: 17px 0 0; color: #a79f9a; font-size: 13px; }
.footer-title { margin: 3px 0 14px; color: #fff; font-size: 14px; }
.footer-links { display: grid; gap: 7px; margin: 0; padding: 0; list-style: none; font-size: 13px; }
.footer-links a:hover,
.footer-links a:focus { color: #f1b6aa; text-decoration: underline; }
.footer-note { color: #a79f9a; font-size: 13px; line-height: 1.7; }
.footer-bottom {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding-top: 21px;
  color: #8e8782;
  font-size: 12px;
}
@media (max-width: 1024px) {
  .hero-grid { gap: 38px; }
  .main-nav a { padding-left: 9px; padding-right: 9px; }
  .main-nav a::after { left: 9px; right: 9px; }
  .nav-action { display: none; }
  .check-layout,
  .feedback-layout { gap: 38px; }
}
@media (max-width: 768px) {
  .container { width: min(var(--max), calc(100% - 34px)); }
  .notice-inner { align-items: flex-start; padding: 8px 0; }
  .notice-copy { align-items: flex-start; }
  .nav-wrap { min-height: 68px; }
  .logo { min-width: 0; }
  .logo-name { font-size: 14px; }
  .logo-name small { display: none; }
  .menu-toggle { display: block; }
  .main-nav {
    position: fixed;
    left: 17px;
    right: 17px;
    top: 76px;
    display: none;
    padding: 9px;
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
  }
  .main-nav.open { display: grid; }
  .main-nav a { padding: 13px 14px; border-radius: 5px; }
  .main-nav a:hover,
  .main-nav a:focus,
  .main-nav a.active { background: var(--mist); }
  .main-nav a::after { display: none; }
  .hero { min-height: 0; }
  .hero-grid,
  .rule-grid,
  .news-layout,
  .check-layout,
  .feedback-layout { grid-template-columns: 1fr; }
  .hero-grid { padding: 67px 0 74px; }
  .hero h1 { font-size: 40px; }
  .hero-lead { font-size: 16px; }
  .section { padding: 64px 0; }
  .section-heading.split { display: block; }
  .section-heading.split .btn { margin-top: 19px; }
  .info-band { grid-template-columns: 1fr 1fr; }
  .info-cell:nth-child(2) { border-right: 0; }
  .info-cell:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
  .risk-board { grid-template-columns: 1fr; }
  .risk-block + .risk-block { border-top: 1px solid var(--line); border-left: 0; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-brand { grid-column: 1 / -1; }
  .cta-inner { display: block; }
  .cta-side { margin-top: 25px; }
}
@media (max-width: 520px) {
  .container { width: calc(100% - 28px); }
  .notice-link { display: none; }
  .hero h1 { font-size: 34px; }
  .hero-actions,
  .hero-actions .btn { width: 100%; }
  .access-panel,
  .rule-intro,
  .feedback-form { padding: 23px; }
  .info-cell { padding: 17px 14px; }
  .info-cell b { font-size: 21px; }
  .form-grid { grid-template-columns: 1fr; }
  .field.full { grid-column: auto; }
  .news-feature-content { padding: 23px; }
  .news-feature h3 { font-size: 21px; }
  .footer-grid { grid-template-columns: 1fr; gap: 27px; }
  .footer-brand { grid-column: auto; }
  .footer-bottom { display: block; }
  .footer-bottom span { display: block; margin-top: 5px; }
}

/* roulang page: article */
:root {
      --ink: #252321;
      --ink-soft: #514b47;
      --muted: #7b736e;
      --paper: #fbfaf8;
      --surface: #ffffff;
      --mist: #f1efec;
      --line: #ded9d4;
      --line-strong: #c9c1bb;
      --clay: #a64f42;
      --clay-dark: #80392f;
      --clay-pale: #f3e4df;
      --green: #35634d;
      --green-pale: #e7f0e9;
      --radius-sm: 6px;
      --radius-md: 9px;
      --shadow-sm: 0 8px 24px rgba(38, 31, 26, .06);
      --shadow-md: 0 18px 40px rgba(38, 31, 26, .10);
      --max: 1200px;
      --ease: 180ms ease;
    }

    html { scroll-behavior: smooth; }
    body {
      margin: 0;
      color: var(--ink);
      background: var(--paper);
      font-family: "Noto Sans SC", "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
      font-size: 16px;
      line-height: 1.75;
      -webkit-font-smoothing: antialiased;
      text-rendering: optimizeLegibility;
    }
    body.menu-open { overflow: hidden; }
    * { box-sizing: border-box; }
    img { display: block; max-width: 100%; }
    a { color: inherit; text-decoration: none; }
    button, input, select, textarea { font: inherit; }
    button { cursor: pointer; }
    ::selection { background: rgba(166, 79, 66, .18); color: var(--ink); }

    :focus-visible {
      outline: 3px solid rgba(166, 79, 66, .28);
      outline-offset: 2px;
    }

    .container {
      width: min(var(--max), calc(100% - 48px));
      margin: 0 auto;
    }

    .site-header {
      position: sticky;
      top: 0;
      z-index: 40;
      background: rgba(251, 250, 248, .96);
      border-bottom: 1px solid var(--line);
      backdrop-filter: saturate(150%) blur(6px);
      transition: box-shadow var(--ease), background var(--ease);
    }
    .site-header.scrolled { box-shadow: 0 4px 18px rgba(38, 31, 26, .08); }
    .top-strip {
      background: linear-gradient(180deg, #f8eee9 0%, #f4e4de 100%);
      border-bottom: 1px solid #ead8d2;
      color: var(--clay-dark);
      font-size: 13px;
    }
    .top-strip .container {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      padding: 10px 0;
    }
    .top-strip strong { font-weight: 800; }
    .top-strip-actions {
      display: inline-flex;
      align-items: center;
      gap: 12px;
      flex-shrink: 0;
    }
    .top-strip-actions a,
    .top-strip-actions button {
      padding: 0;
      border: 0;
      background: transparent;
      color: var(--clay-dark);
      font-weight: 700;
    }
    .top-strip-actions a:hover,
    .top-strip-actions button:hover { text-decoration: underline; }

    .nav-wrap {
      min-height: 78px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 26px;
    }
    .logo {
      display: inline-flex;
      align-items: center;
      gap: 11px;
      min-width: 230px;
      color: var(--ink);
      font-weight: 800;
      line-height: 1.2;
    }
    .logo-badge {
      width: 38px;
      height: 38px;
      display: inline-grid;
      place-items: center;
      color: #fff;
      background: var(--ink);
      border-radius: 8px;
      font-size: 13px;
      letter-spacing: 0;
      box-shadow: inset 0 0 0 1px rgba(255,255,255,.12);
    }
    .logo-name { font-size: 16px; }
    .logo-name small {
      display: block;
      margin-top: 3px;
      color: var(--muted);
      font-size: 11px;
      font-weight: 500;
    }

    .main-nav { display: flex; align-items: center; gap: 5px; }
    .main-nav a {
      position: relative;
      padding: 26px 14px 24px;
      color: var(--ink-soft);
      font-size: 14px;
      font-weight: 650;
    }
    .main-nav a::after {
      content: "";
      position: absolute;
      left: 14px;
      right: 14px;
      bottom: 17px;
      height: 2px;
      background: var(--clay);
      transform: scaleX(0);
      transition: transform var(--ease);
      transform-origin: center;
    }
    .main-nav a:hover,
    .main-nav a:focus,
    .main-nav a.active { color: var(--ink); }
    .main-nav a:hover::after,
    .main-nav a:focus::after,
    .main-nav a.active::after { transform: scaleX(1); }

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

    .btn {
      min-height: 44px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      padding: 9px 18px;
      border: 1px solid transparent;
      border-radius: var(--radius-sm);
      font-weight: 700;
      line-height: 1.3;
      transition: transform var(--ease), background var(--ease), border-color var(--ease), box-shadow var(--ease), color var(--ease), opacity var(--ease);
      text-decoration: none;
    }
    .btn:hover { text-decoration: none; }
    .btn-primary {
      color: #fff;
      background: var(--clay);
    }
    .btn-primary:hover {
      background: var(--clay-dark);
      transform: translateY(-2px);
      box-shadow: 0 8px 16px rgba(128, 57, 47, .16);
      color: #fff;
    }
    .btn-primary:active { transform: translateY(0); filter: brightness(.94); }
    .btn-dark {
      color: #fff;
      background: var(--ink);
    }
    .btn-dark:hover {
      background: #403a36;
      transform: translateY(-2px);
      color: #fff;
    }
    .btn-outline {
      color: var(--clay-dark);
      background: transparent;
      border-color: var(--line-strong);
    }
    .btn-outline:hover {
      border-color: var(--clay);
      background: var(--clay-pale);
      color: var(--clay-dark);
      transform: translateY(-1px);
    }
    .btn-text {
      min-height: auto;
      padding: 0;
      color: var(--clay-dark);
      background: transparent;
    }
    .btn-text:hover { text-decoration: underline; }

    .menu-toggle {
      display: none;
      width: 44px;
      height: 44px;
      color: var(--ink);
      background: transparent;
      border: 1px solid var(--line-strong);
      border-radius: var(--radius-sm);
    }
    .menu-toggle span,
    .menu-toggle span::before,
    .menu-toggle span::after {
      display: block;
      width: 18px;
      height: 2px;
      margin: auto;
      background: currentColor;
      transition: transform var(--ease), opacity var(--ease);
    }
    .menu-toggle span::before,
    .menu-toggle span::after { content: ""; }
    .menu-toggle span::before { transform: translateY(-6px); }
    .menu-toggle span::after { transform: translateY(4px); }

    .site-main {
      overflow: clip;
    }

    .section {
      padding: 92px 0;
    }
    .section-muted { background: var(--mist); }
    .section-soft { background: linear-gradient(180deg, #faf7f5 0%, #f3efec 100%); }
    .section-tight { padding: 70px 0; }

    .section-heading {
      max-width: 720px;
      margin-bottom: 34px;
    }
    .section-heading.split {
      max-width: none;
      display: flex;
      align-items: end;
      justify-content: space-between;
      gap: 24px;
    }
    .section-kicker {
      margin-bottom: 12px;
      color: var(--clay-dark);
      font-size: 13px;
      font-weight: 800;
      letter-spacing: .08em;
    }
    .section-heading h2 {
      margin: 0;
      font-size: clamp(26px, 3vw, 38px);
      line-height: 1.22;
      letter-spacing: 0;
    }
    .section-heading p {
      margin: 14px 0 0;
      color: var(--ink-soft);
      font-size: 16px;
    }

    .article-hero {
      position: relative;
      overflow: hidden;
      padding: 36px 0 26px;
      border-bottom: 1px solid var(--line);
      background:
        linear-gradient(180deg, rgba(255,255,255,.88), rgba(255,255,255,.92)),
        url("/assets/images/backpic/back-2.webp") center / cover no-repeat;
    }
    .article-hero::before {
      content: "";
      position: absolute;
      inset: 0;
      background: linear-gradient(130deg, rgba(166, 79, 66, .10) 0%, rgba(251, 250, 248, .10) 46%, rgba(37, 35, 33, .04) 100%);
      pointer-events: none;
    }
    .article-hero .container { position: relative; }
    .article-hero-grid {
      display: grid;
      grid-template-columns: minmax(0, 1.15fr) minmax(320px, .85fr);
      gap: 28px;
      align-items: center;
    }

    .breadcrumb {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      align-items: center;
      margin-bottom: 16px;
      color: var(--muted);
      font-size: 13px;
    }
    .breadcrumb a {
      color: var(--ink-soft);
      text-decoration: none;
    }
    .breadcrumb a:hover { text-decoration: underline; }
    .breadcrumb span.sep { color: #b5aea8; }
    .article-kicker {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      margin-bottom: 16px;
      color: var(--clay-dark);
      font-size: 13px;
      font-weight: 800;
      letter-spacing: .08em;
    }
    .article-kicker::before {
      content: "";
      width: 25px;
      height: 2px;
      background: var(--clay);
    }
    .article-hero h1 {
      margin: 0;
      color: var(--ink);
      font-size: clamp(32px, 4vw, 52px);
      line-height: 1.18;
      letter-spacing: 0;
    }
    .article-lead {
      max-width: 760px;
      margin: 18px 0 24px;
      color: var(--ink-soft);
      font-size: 17px;
    }
    .article-meta {
      display: flex;
      flex-wrap: wrap;
      gap: 10px 12px;
      align-items: center;
      margin-bottom: 24px;
    }
    .badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 7px 10px;
      border: 1px solid transparent;
      border-radius: 6px;
      font-size: 12px;
      font-weight: 800;
      letter-spacing: .02em;
    }
    .badge-clay {
      color: var(--clay-dark);
      background: var(--clay-pale);
      border-color: #ead2cc;
    }
    .badge-ink {
      color: #fff;
      background: var(--ink);
    }
    .badge-green {
      color: var(--green);
      background: var(--green-pale);
      border-color: #d4e5d9;
    }
    .meta-chip {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      color: var(--muted);
      font-size: 13px;
    }
    .article-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      align-items: center;
    }

    .hero-visual {
      position: relative;
      padding: 16px;
      border: 1px solid var(--line);
      border-radius: 14px;
      background: rgba(255,255,255,.72);
      box-shadow: var(--shadow-sm);
      backdrop-filter: blur(4px);
    }
    .hero-visual img {
      width: 100%;
      aspect-ratio: 16 / 10;
      object-fit: cover;
      border-radius: 11px;
      border: 1px solid var(--line);
      background: var(--mist);
    }
    .hero-visual-note {
      display: grid;
      gap: 12px;
      margin-top: 14px;
    }
    .notice-tile {
      display: grid;
      grid-template-columns: 30px 1fr;
      gap: 12px;
      align-items: start;
      padding: 14px 15px;
      border: 1px solid var(--line);
      border-radius: 10px;
      background: #fff;
    }
    .notice-ico {
      width: 30px;
      height: 30px;
      display: grid;
      place-items: center;
      border-radius: 8px;
      background: var(--clay-pale);
      color: var(--clay-dark);
      font-size: 15px;
      flex: 0 0 auto;
    }
    .notice-tile strong {
      display: block;
      margin-bottom: 3px;
      font-size: 14px;
      line-height: 1.35;
    }
    .notice-tile span {
      display: block;
      color: var(--muted);
      font-size: 13px;
      line-height: 1.55;
    }

    .content-layout {
      padding: 42px 0 86px;
    }
    .content-grid {
      display: grid;
      grid-template-columns: minmax(0, 7.8fr) minmax(320px, 4.2fr);
      gap: 30px;
      align-items: start;
    }

    .content-card,
    .side-card {
      background: var(--surface);
      border: 1px solid var(--line);
      border-radius: 12px;
      box-shadow: var(--shadow-sm);
    }
    .content-card {
      overflow: hidden;
    }
    .content-card-head {
      padding: 18px 22px;
      border-bottom: 1px solid var(--line);
      background: linear-gradient(180deg, #fff 0%, #fdfcfb 100%);
    }
    .content-card-body { padding: 22px 22px 26px; }

    .article-body {
      max-width: 760px;
      font-size: 16px;
      line-height: 1.92;
      color: var(--ink);
    }
    .article-body h2,
    .article-body h3 {
      margin: 34px 0 14px;
      line-height: 1.28;
      letter-spacing: 0;
    }
    .article-body h2 { font-size: 28px; }
    .article-body h3 { font-size: 22px; }
    .article-body p { margin: 0 0 16px; }
    .article-body a {
      color: var(--clay-dark);
      text-decoration: underline;
      text-decoration-thickness: 1px;
      text-underline-offset: 2px;
    }
    .article-body a:hover { color: var(--clay); }
    .article-body ul,
    .article-body ol {
      padding-left: 1.15em;
      margin: 0 0 18px;
    }
    .article-body li + li { margin-top: 8px; }
    .article-body blockquote {
      margin: 24px 0;
      padding: 16px 18px;
      border-left: 4px solid var(--clay);
      background: #faf5f3;
      color: var(--ink-soft);
      border-radius: 0 10px 10px 0;
    }
    .article-body hr {
      margin: 28px 0;
      border: 0;
      border-top: 1px solid var(--line);
    }
    .article-body img {
      width: 100%;
      height: auto;
      margin: 20px 0;
      border-radius: 10px;
      border: 1px solid var(--line);
      object-fit: cover;
      background: var(--mist);
    }
    .article-body figure { margin: 22px 0; }
    .article-body figcaption {
      margin-top: 8px;
      color: var(--muted);
      font-size: 13px;
      text-align: center;
    }
    .article-body table {
      width: 100%;
      margin: 20px 0;
      border-collapse: collapse;
      font-size: 15px;
      overflow: hidden;
      border: 1px solid var(--line);
      border-radius: 10px;
    }
    .article-body th,
    .article-body td {
      padding: 12px 14px;
      border-bottom: 1px solid var(--line);
      vertical-align: top;
    }
    .article-body th {
      background: #f6f2ef;
      text-align: left;
      font-weight: 800;
      color: var(--ink);
    }
    .article-body tr:last-child td { border-bottom: 0; }
    .article-body code {
      padding: 2px 6px;
      border-radius: 5px;
      background: #f4f1ee;
      color: var(--clay-dark);
    }
    .article-body pre {
      padding: 16px;
      overflow: auto;
      border: 1px solid var(--line);
      border-radius: 10px;
      background: #faf8f6;
    }

    .article-empty {
      padding: 26px;
      text-align: center;
    }
    .article-empty h2 {
      margin: 0 0 10px;
      font-size: 26px;
    }
    .article-empty p { margin: 0 0 18px; color: var(--ink-soft); }

    .side-stack { display: grid; gap: 18px; }
    .side-card {
      overflow: hidden;
    }
    .side-card-head {
      padding: 18px 18px 0;
    }
    .side-card-body {
      padding: 16px 18px 18px;
    }
    .side-title {
      margin: 0;
      font-size: 18px;
      line-height: 1.3;
    }
    .side-sub {
      margin: 8px 0 0;
      color: var(--muted);
      font-size: 13px;
      line-height: 1.6;
    }
    .detail-list {
      display: grid;
      gap: 12px;
      margin: 0;
      padding: 0;
      list-style: none;
    }
    .detail-list li {
      display: grid;
      grid-template-columns: 20px 1fr;
      gap: 10px;
      align-items: start;
      padding: 12px 0;
      border-top: 1px solid var(--line);
    }
    .detail-list li:first-child { border-top: 0; padding-top: 0; }
    .detail-ico {
      width: 20px;
      height: 20px;
      display: grid;
      place-items: center;
      border-radius: 6px;
      background: var(--clay-pale);
      color: var(--clay-dark);
      font-size: 12px;
      margin-top: 2px;
    }
    .detail-list strong {
      display: block;
      margin-bottom: 2px;
      font-size: 14px;
    }
    .detail-list span {
      color: var(--muted);
      font-size: 13px;
      line-height: 1.6;
    }

    .side-cover {
      padding: 14px;
    }
    .side-cover img {
      width: 100%;
      aspect-ratio: 4 / 3;
      object-fit: cover;
      border-radius: 10px;
      border: 1px solid var(--line);
    }
    .side-cover .small-note {
      margin-top: 12px;
      color: var(--muted);
      font-size: 13px;
      line-height: 1.6;
    }

    .toc-list {
      display: grid;
      gap: 8px;
      padding: 0;
      margin: 0;
      list-style: none;
    }
    .toc-list a {
      display: flex;
      align-items: flex-start;
      gap: 8px;
      padding: 10px 0;
      color: var(--ink-soft);
      border-bottom: 1px dashed var(--line);
      transition: color var(--ease), padding-left var(--ease);
    }
    .toc-list a:hover {
      color: var(--clay-dark);
      padding-left: 4px;
    }
    .toc-list a:last-child { border-bottom: 0; }
    .toc-mark {
      color: var(--clay-dark);
      font-weight: 800;
      flex: 0 0 auto;
    }

    .info-grid {
      display: grid;
      gap: 16px;
      grid-template-columns: repeat(3, minmax(0, 1fr));
    }
    .info-card {
      padding: 18px;
      border: 1px solid var(--line);
      border-radius: 12px;
      background: var(--surface);
      box-shadow: var(--shadow-sm);
    }
    .info-card .num {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-width: 44px;
      min-height: 28px;
      padding: 0 10px;
      border-radius: 6px;
      color: var(--clay-dark);
      background: var(--clay-pale);
      font-size: 13px;
      font-weight: 800;
    }
    .info-card h3 {
      margin: 12px 0 8px;
      font-size: 17px;
      line-height: 1.35;
    }
    .info-card p {
      margin: 0;
      color: var(--ink-soft);
      font-size: 14px;
      line-height: 1.72;
    }
    .info-card .more {
      display: inline-flex;
      margin-top: 12px;
      color: var(--clay-dark);
      font-size: 13px;
      font-weight: 700;
    }
    .info-card .more:hover { text-decoration: underline; }

    .timeline {
      display: grid;
      gap: 14px;
      margin-top: 18px;
    }
    .timeline-item {
      display: grid;
      grid-template-columns: 34px 1fr;
      gap: 14px;
      align-items: start;
    }
    .timeline-dot {
      width: 34px;
      height: 34px;
      display: grid;
      place-items: center;
      border-radius: 50%;
      background: var(--ink);
      color: #fff;
      box-shadow: inset 0 0 0 4px rgba(166, 79, 66, .14);
      font-size: 13px;
      font-weight: 800;
    }
    .timeline-panel {
      padding: 14px 16px;
      border: 1px solid var(--line);
      border-radius: 10px;
      background: #fff;
    }
    .timeline-panel strong {
      display: block;
      margin-bottom: 4px;
      font-size: 15px;
    }
    .timeline-panel p {
      margin: 0;
      color: var(--ink-soft);
      font-size: 14px;
      line-height: 1.72;
    }

    .accordion-list {
      display: grid;
      gap: 12px;
    }
    .faq-item {
      border: 1px solid var(--line);
      border-radius: 12px;
      background: var(--surface);
      box-shadow: var(--shadow-sm);
      overflow: hidden;
    }
    .faq-question {
      width: 100%;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 18px;
      padding: 18px 20px;
      border: 0;
      background: transparent;
      color: var(--ink);
      text-align: left;
      font-weight: 800;
      font-size: 16px;
    }
    .faq-question .sign {
      flex: 0 0 auto;
      width: 28px;
      height: 28px;
      display: grid;
      place-items: center;
      border-radius: 6px;
      background: var(--clay-pale);
      color: var(--clay-dark);
      font-size: 18px;
      line-height: 1;
      transition: transform var(--ease), background var(--ease);
    }
    .faq-question:hover .sign { background: #eddad5; }
    .faq-answer {
      display: none;
      padding: 0 20px 18px;
      color: var(--ink-soft);
      font-size: 15px;
      line-height: 1.86;
    }
    .faq-item.open .faq-answer { display: block; }
    .faq-item.open .faq-question .sign::before { content: "−"; }
    .faq-item:not(.open) .faq-question .sign::before { content: "+"; }

    .form-card {
      padding: 22px;
      background: var(--surface);
      border: 1px solid var(--line);
      border-radius: 12px;
      box-shadow: var(--shadow-sm);
    }
    .form-row {
      display: grid;
      gap: 16px;
      grid-template-columns: repeat(2, minmax(0, 1fr));
    }
    .form-field { display: grid; gap: 7px; }
    .form-field label {
      color: var(--ink);
      font-size: 14px;
      font-weight: 700;
    }
    .form-field input,
    .form-field select,
    .form-field textarea {
      width: 100%;
      min-height: 46px;
      padding: 11px 13px;
      border: 1px solid var(--line-strong);
      border-radius: 8px;
      background: #fff;
      color: var(--ink);
      transition: border-color var(--ease), box-shadow var(--ease), background var(--ease);
    }
    .form-field textarea {
      min-height: 150px;
      resize: vertical;
    }
    .form-field input::placeholder,
    .form-field textarea::placeholder { color: #a19a95; }
    .form-field input:focus,
    .form-field select:focus,
    .form-field textarea:focus {
      border-color: var(--clay);
      box-shadow: 0 0 0 4px rgba(166, 79, 66, .10);
      outline: none;
    }
    .help-text {
      color: var(--muted);
      font-size: 12px;
      line-height: 1.6;
    }
    .inline-check {
      display: flex;
      gap: 10px;
      align-items: flex-start;
      color: var(--ink-soft);
      font-size: 13px;
      line-height: 1.65;
    }
    .inline-check input {
      margin-top: 4px;
      width: 16px;
      height: 16px;
      accent-color: var(--clay);
      flex: 0 0 auto;
    }
    .form-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      margin-top: 6px;
    }
    .form-status {
      margin-top: 12px;
      color: var(--green);
      font-size: 13px;
      min-height: 20px;
    }

    .cta {
      background:
        linear-gradient(180deg, rgba(37,35,33,.96), rgba(37,35,33,.92)),
        url("/assets/images/backpic/back-3.webp") center / cover no-repeat;
      color: #fff;
    }
    .cta .section-kicker,
    .cta p,
    .cta .muted { color: #d9d1cc; }
    .cta-box {
      display: grid;
      gap: 18px;
      grid-template-columns: minmax(0, 1.2fr) minmax(280px, .8fr);
      align-items: center;
    }
    .cta h2 {
      margin: 0;
      font-size: clamp(28px, 4vw, 44px);
      line-height: 1.2;
    }
    .cta p {
      margin: 12px 0 0;
      max-width: 680px;
      font-size: 16px;
    }
    .cta-panel {
      padding: 18px;
      border: 1px solid rgba(255,255,255,.18);
      border-radius: 12px;
      background: rgba(255,255,255,.08);
      box-shadow: inset 0 0 0 1px rgba(255,255,255,.04);
    }
    .cta-panel ul {
      margin: 0;
      padding-left: 18px;
      color: #ece5e1;
    }

    .site-footer {
      padding: 72px 0 26px;
      background: #201e1c;
      color: #e7e0db;
      border-top: 1px solid rgba(255,255,255,.08);
    }
    .footer-grid {
      display: grid;
      gap: 26px;
      grid-template-columns: 1.3fr .8fr .8fr 1fr;
      align-items: start;
    }
    .footer-brand .logo {
      color: #fff;
      min-width: 0;
    }
    .footer-brand .logo-badge { background: #fff; color: var(--ink); }
    .footer-brand .logo-name small { color: #b7aca6; }
    .footer-copy {
      margin: 16px 0 0;
      color: #c8beb7;
      max-width: 320px;
      font-size: 14px;
      line-height: 1.8;
    }
    .footer-title {
      margin: 4px 0 14px;
      color: #fff;
      font-size: 15px;
      font-weight: 800;
    }
    .footer-links {
      padding: 0;
      margin: 0;
      list-style: none;
      display: grid;
      gap: 10px;
    }
    .footer-links a {
      color: #c8beb7;
      font-size: 14px;
    }
    .footer-links a:hover {
      color: #fff;
      text-decoration: underline;
    }
    .footer-note {
      margin: 0;
      color: #c8beb7;
      font-size: 14px;
      line-height: 1.8;
    }
    .footer-bottom {
      display: flex;
      flex-wrap: wrap;
      justify-content: space-between;
      gap: 12px;
      margin-top: 28px;
      padding-top: 18px;
      border-top: 1px solid rgba(255,255,255,.10);
      color: #aa9f98;
      font-size: 13px;
    }

    .side-link-list {
      display: grid;
      gap: 10px;
      margin: 0;
      padding: 0;
      list-style: none;
    }
    .side-link-list a {
      display: flex;
      justify-content: space-between;
      gap: 12px;
      padding: 12px 14px;
      border: 1px solid var(--line);
      border-radius: 10px;
      background: #fff;
      color: var(--ink);
      transition: border-color var(--ease), transform var(--ease), box-shadow var(--ease);
    }
    .side-link-list a:hover {
      border-color: var(--clay);
      box-shadow: 0 8px 16px rgba(38, 31, 26, .08);
      transform: translateY(-1px);
    }
    .side-link-list small { color: var(--muted); }

    .alert-soft {
      padding: 14px 16px;
      border: 1px solid #ead8d2;
      border-radius: 10px;
      background: #faf2ef;
      color: var(--clay-dark);
      font-size: 14px;
      line-height: 1.7;
    }

    @media (max-width: 1100px) {
      .article-hero-grid,
      .content-grid,
      .cta-box,
      .footer-grid {
        grid-template-columns: 1fr;
      }
      .hero-visual { max-width: 620px; }
      .info-grid { grid-template-columns: 1fr; }
    }

    @media (max-width: 768px) {
      .container { width: min(var(--max), calc(100% - 28px)); }
      .top-strip .container {
        padding: 9px 0;
        align-items: flex-start;
        flex-direction: column;
      }
      .nav-wrap { min-height: 68px; gap: 12px; }
      .menu-toggle { display: inline-grid; place-items: center; }
      .nav-action { margin-left: auto; }
      .main-nav {
        position: fixed;
        left: 0;
        right: 0;
        top: 0;
        z-index: 50;
        display: grid;
        gap: 0;
        padding: 84px 16px 16px;
        background: rgba(251, 250, 248, .98);
        border-bottom: 1px solid var(--line);
        box-shadow: 0 20px 40px rgba(38, 31, 26, .12);
        transform: translateY(-110%);
        transition: transform var(--ease);
      }
      body.menu-open .main-nav { transform: translateY(0); }
      .main-nav a {
        padding: 14px 12px;
        border-radius: 8px;
      }
      .main-nav a::after {
        left: 12px;
        right: 12px;
        bottom: 8px;
      }
      .nav-desktop-action {
        display: none;
      }
      .article-hero {
        padding: 24px 0 18px;
      }
      .article-hero h1 { font-size: clamp(28px, 8vw, 40px); }
      .article-lead { font-size: 16px; }
      .section { padding: 70px 0; }
      .section-heading.split {
        flex-direction: column;
        align-items: flex-start;
      }
      .article-body h2 { font-size: 24px; }
      .article-body h3 { font-size: 20px; }
      .form-row { grid-template-columns: 1fr; }
      .footer-bottom { flex-direction: column; }
      .faq-question { padding: 16px 16px; font-size: 15px; }
      .faq-answer { padding: 0 16px 16px; }
    }

    @media (max-width: 520px) {
      .logo { min-width: 0; }
      .logo-name { font-size: 15px; }
      .logo-name small { font-size: 10px; }
      .article-meta,
      .article-actions,
      .hero-visual-note,
      .top-strip-actions {
        gap: 8px;
      }
      .content-card-head,
      .content-card-body,
      .side-card-head,
      .side-card-body,
      .form-card {
        padding-left: 16px;
        padding-right: 16px;
      }
      .article-body table {
        display: block;
        overflow-x: auto;
        white-space: nowrap;
      }
      .faq-question .sign { width: 24px; height: 24px; }
      .site-footer { padding-top: 60px; }
    }

/* roulang: framework shim */
/* 覆盖 Bootstrap 等对 a/btn 的全局默认，避免导航出现下划线/蓝链 */
.site-header a,.site-header a:hover,.navbar a,.navbar a:hover,.nav-links a,.nav-links a:hover,header nav a,header nav a:hover{text-decoration:none}
.site-header .btn,.navbar .btn,.nav-cta{text-decoration:none}