/* roulang page: index */
:root {
  --page: #F4F1EA;
  --panel: #FFFFFF;
  --ink: #191D20;
  --body: #33383C;
  --muted: #6F7478;
  --line: #DDD8CE;
  --line-strong: #C7C0B4;
  --copper: #A9814E;
  --copper-bright: #C79E64;
  --copper-bg: #F0E7D8;
  --alert: #A34B36;
  --dark: #171B1E;
  --dark-soft: rgba(255,255,255,0.72);
  --white: #FFFFFF;
  --radius: 2px;
  --pill: 99px;
  --shadow: 0 1px 2px rgba(23, 26, 28, 0.06);
  --shadow-hover: 0 10px 24px rgba(23, 26, 28, 0.08);
  --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-title: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --container: 1280px;
  --gutter: clamp(20px, 4vw, 40px);
  --section: clamp(80px, 9vw, 150px);
}
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
  scroll-padding-top: 120px;
}
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *, *::before, *::after {
    animation-duration: 0.001s !important;
    transition-duration: 0.001s !important;
  }
}
body {
  background: var(--page);
  color: var(--body);
  font-family: var(--font-sans);
  font-size: 17px;
  line-height: 1.85;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
img, svg {
  display: block;
  max-width: 100%;
}
a {
  color: inherit;
  text-decoration: none;
}
button, input, select, textarea {
  font-family: inherit;
  font-size: inherit;
  color: inherit;
}
input, select, textarea {
  border-radius: 0;
}
ul, ol {
  list-style: none;
}
.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 200;
  padding: 12px 18px;
  background: var(--ink);
  color: #fff;
  transform: translateY(-220%);
  transition: transform .2s ease;
}
.skip-link:focus {
  transform: translateY(0);
  outline: 2px solid var(--copper);
  outline-offset: 3px;
}
.container {
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--gutter);
}
.section {
  padding: var(--section) 0;
  position: relative;
}
.section-light {
  background: var(--page);
}
.section-white {
  background: var(--panel);
}
.section-dark {
  background: var(--dark);
  color: rgba(255,255,255,0.86);
}
.ele-badge {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 5px 12px;
  border: 1px solid rgba(169, 129, 78, 0.5);
  border-radius: 99px;
  color: var(--copper);
  background: rgba(169, 129, 78, 0.05);
  font-size: 13px;
  letter-spacing: .04em;
}
.ele-badge .dot {
  width: 4px;
  height: 4px;
  border-radius: 99px;
  background: var(--copper);
}
.section-eyebrow {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.16em;
  color: var(--copper);
  margin-bottom: 18px;
}
h1, h2, h3, h4 {
  font-family: var(--font-title);
  color: var(--ink);
  font-weight: 700;
  line-height: 1.3;
  text-wrap: balance;
}
h2 {
  font-size: clamp(28px, 3.4vw, 52px);
  letter-spacing: -0.01em;
  margin-bottom: 20px;
}
h3 {
  font-size: clamp(19px, 1.8vw, 26px);
  font-weight: 650;
  letter-spacing: -0.015em;
}
.section-sub {
  font-size: 16px;
  line-height: 1.9;
  color: var(--muted);
  max-width: 68ch;
}
.section-header {
  margin-bottom: clamp(36px, 6vw, 76px);
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  align-items: end;
  gap: 28px 48px;
}
.section-header .section-lead {
  padding-bottom: 5px;
}
.section-header .section-copy {
  max-width: 56ch;
  font-size: 16px;
  line-height: 1.9;
  color: var(--muted);
}
@media (max-width: 768px) {
  .section-header {
    grid-template-columns: 1fr;
    gap: 14px;
  }
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 15px 28px;
  border: 1px solid var(--ink);
  border-radius: var(--radius);
  background: var(--ink);
  color: #fff;
  font-size: 15px;
  font-weight: 600;
  line-height: 1;
  cursor: pointer;
  transition: background .22s ease, border-color .22s ease, color .22s ease, transform .18s ease, box-shadow .22s ease;
}
.btn svg {
  width: 16px;
  height: 16px;
}
.btn:hover {
  background: var(--copper);
  border-color: var(--copper);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: var(--shadow-hover);
}
.btn:active {
  transform: translateY(0);
}
.btn:focus-visible {
  outline: 2px solid var(--copper);
  outline-offset: 3px;
}
.btn-ghost {
  background: transparent;
  color: var(--ink);
  border-color: var(--line-strong);
}
.btn-ghost:hover {
  background: transparent;
  border-color: var(--copper);
  color: var(--copper);
}
.btn-light {
  background: #fff;
  border-color: #fff;
  color: var(--ink);
  padding: 10px 20px;
}
.btn-light:hover {
  background: var(--copper-bright);
  border-color: var(--copper-bright);
  color: #fff;
}
.btn-outline-light {
  background: transparent;
  border-color: rgba(255,255,255,.6);
  color: #fff;
}
.btn-outline-light:hover {
  background: var(--copper);
  border-color: var(--copper);
  color: #fff;
}
.text-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
  color: var(--ink);
  border-bottom: 1px solid var(--line-strong);
  padding-bottom: 3px;
  transition: color .2s ease, border-color .2s ease, gap .2s ease;
}
.text-link svg {
  width: 15px;
  height: 15px;
}
.text-link:hover {
  color: var(--copper);
  border-color: var(--copper);
  gap: 12px;
}

/*  Header  */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 88px;
  background: rgba(23, 27, 30, 0.97);
  border-bottom: 1px solid rgba(255,255,255,0.06);
  z-index: 100;
  transition: height .3s ease, box-shadow .3s ease;
}
.site-header.is-scrolled {
  height: 68px;
  box-shadow: 0 10px 26px rgba(23, 27, 30, 0.14);
}
.header-inner {
  height: 100%;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: clamp(18px, 3vw, 38px);
}
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  color: #fff;
  min-width: 0;
}
.brand-text {
  font-size: 21px;
  font-weight: 700;
  letter-spacing: 0.02em;
  line-height: 1.1;
  color: #fff;
  white-space: nowrap;
}
.brand-divider {
  width: 1px;
  height: 18px;
  background: rgba(255,255,255,.25);
}
.brand-tag {
  color: rgba(255,255,255,.6);
  font-size: 10px;
  letter-spacing: .12em;
  font-weight: 600;
  white-space: nowrap;
}
.desktop-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 2px;
  min-width: 0;
}
.nav-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  border: 1px solid transparent;
  border-radius: 99px;
  color: rgba(255,255,255,0.76);
  font-size: 14px;
  font-weight: 500;
  line-height: 1;
  white-space: nowrap;
  transition: background .2s ease, color .2s ease, border-color .2s ease;
}
.nav-chip:hover {
  background: rgba(255,255,255,0.08);
  color: #fff;
}
.nav-chip.active {
  background: var(--copper-bg);
  color: var(--ink);
  font-weight: 600;
}
.nav-chip:focus-visible,
.brand:focus-visible,
.menu-toggle:focus-visible {
  outline: 2px solid var(--copper);
  outline-offset: 3px;
  border-radius: 4px;
}
.header-cta {
  display: flex;
  justify-content: flex-end;
  align-items: center;
  gap: 12px;
}
.menu-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border: 1px solid rgba(255,255,255,0.18);
  border-radius: 2px;
  background: transparent;
  color: #fff;
  cursor: pointer;
}
.menu-toggle svg {
  width: 22px;
  height: 22px;
}
.mobile-menu {
  display: none;
}
@media (max-width: 1000px) {
  .desktop-nav {
    display: none;
  }
  .header-cta .header-cta-btn {
    display: none;
  }
  .menu-toggle {
    display: inline-flex;
  }
  .header-inner {
    grid-template-columns: 1fr auto;
  }
  .site-header {
    height: 72px;
  }
  .mobile-menu {
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(23, 27, 30, 0.99);
    padding: 24px var(--gutter) calc(90px + env(safe-area-inset-bottom));
    overflow-y: auto;
    visibility: hidden;
    opacity: 0;
    transform: translateY(-8px);
    transition: opacity .25s ease, transform .25s ease, visibility .25s ease;
  }
  .mobile-menu.is-open {
    visibility: visible;
    opacity: 1;
    transform: translateY(0);
  }
  .mobile-menu-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 30px;
  }
  .mobile-menu-list .nav-chip {
    width: 100%;
    justify-content: flex-start;
    padding: 17px 18px;
    border-radius: 2px;
    color: rgba(255,255,255,0.88);
    font-size: 18px;
    background: transparent;
    border-bottom: 1px solid rgba(255,255,255,0.08);
  }
  .mobile-menu-list .nav-chip.active {
    background: var(--copper-bg);
    color: var(--ink);
  }
  .mobile-menu-cta {
    display: flex;
    gap: 12px;
  }
}
@media (max-width: 480px) {
  .brand-tag {
    display: none;
  }
  .brand-text {
    font-size: 18px;
  }
  .brand-divider {
    display: none;
  }
}

/*  Hero  */
.hero {
  min-height: 100svh;
  display: flex;
  align-items: center;
  padding: clamp(120px, 16vh, 170px) 0 90px;
  position: relative;
  overflow: hidden;
  background:
    linear-gradient(rgba(244,241,234,0.9), rgba(244,241,234,0.95)),
    url('/assets/images/backpic/back-2.webp') no-repeat right top / cover;
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(90deg, transparent 97%, rgba(23,27,28,0.03) 97%),
    linear-gradient(180deg, transparent 97%, rgba(23,27,28,0.03) 97%);
  background-size: 48px 48px;
  opacity: .4;
}
.hero-inner {
  position: relative;
  z-index: 1;
  width: 100%;
}
.hero-kicker {
  margin-bottom: 24px;
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--copper);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.14em;
}
.hero-kicker::before {
  content: "";
  width: 34px;
  height: 1px;
  background: var(--copper);
}
.hero h1 {
  font-size: clamp(44px, 6vw, 84px);
  font-weight: 800;
  line-height: 1.16;
  letter-spacing: -0.02em;
  color: var(--ink);
  max-width: 10em;
  margin-bottom: 28px;
}
.hero-sub {
  max-width: 680px;
  font-size: clamp(17px, 1.7vw, 20px);
  line-height: 1.9;
  color: var(--body);
  margin-bottom: 38px;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 50px;
}
.hero-notes {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 44px;
  color: var(--muted);
  font-size: 14px;
}
.hero-note {
  display: flex;
  align-items: center;
  gap: 9px;
}
.hero-note::before {
  content: "";
  width: 14px;
  height: 1px;
  background: var(--copper);
  flex: none;
}
.hero-scroll {
  position: absolute;
  left: max(20px, calc((100vw - 1280px) / 2 + clamp(20px, 4vw, 40px)));
  bottom: 24px;
  z-index: 2;
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--ink);
  font-size: 13px;
  letter-spacing: .08em;
  transition: color .2s ease;
}
.hero-scroll:hover {
  color: var(--copper);
}
.hero-scroll .line {
  width: 34px;
  height: 1px;
  background: currentColor;
  position: relative;
}
.hero-scroll .line::after {
  content: "";
  position: absolute;
  left: 10px;
  top: -2px;
  width: 5px;
  height: 5px;
  border-radius: 99px;
  background: currentColor;
}
@media (max-width: 768px) {
  .hero {
    min-height: auto;
    padding-top: 128px;
  }
  .hero-actions .btn {
    width: 100%;
  }
  .hero-scroll {
    display: none;
  }
}

/*  Core / 能力列表  */
.split-feature {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.35fr);
  gap: clamp(44px, 7vw, 120px);
  align-items: start;
}
@media (max-width: 1000px) {
  .split-feature {
    grid-template-columns: 1fr;
    gap: 30px;
  }
}
.feature-aside {
  position: sticky;
  top: 130px;
}
@media (max-width: 1000px) {
  .feature-aside {
    position: static;
  }
}
.feature-list {
  border-top: 1px solid var(--line);
}
.feature-item {
  display: grid;
  grid-template-columns: 74px 1fr;
  gap: 18px;
  padding: 34px 0;
  border-bottom: 1px solid var(--line);
  transition: background .2s ease, padding-left .3s ease;
}
.feature-item:hover {
  background: rgba(240,231,216,0.18);
  padding-left: 12px;
}
.feature-index {
  font-size: 15px;
  font-weight: 600;
  color: var(--copper);
  letter-spacing: .04em;
  padding-top: 5px;
}
.feature-title {
  margin-bottom: 10px;
}
.feature-desc {
  color: var(--muted);
  font-size: 16px;
  line-height: 1.85;
  max-width: 64ch;
  margin-bottom: 14px;
}
.feature-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.feature-tags span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 11px;
  border-radius: 99px;
  border: 1px solid var(--line);
  background: var(--panel);
  color: var(--muted);
  font-size: 12px;
  line-height: 1.6;
}
@media (max-width: 600px) {
  .feature-item {
    grid-template-columns: 44px 1fr;
    gap: 10px;
    padding: 26px 0;
  }
  .feature-item:hover {
    padding-left: 4px;
  }
}

/*  Process / 流程  */
.process-track {
  position: relative;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-top: 20px;
  margin-bottom: clamp(34px, 6vw, 62px);
}
.process-track::before {
  content: "";
  position: absolute;
  top: 22px;
  left: 32px;
  right: 32px;
  height: 1px;
  background: var(--line-strong);
  z-index: 0;
}
.step-card {
  position: relative;
  z-index: 1;
  padding-right: 10px;
}
.step-dot {
  width: 44px;
  height: 44px;
  border-radius: 99px;
  border: 1px solid var(--copper);
  background: var(--page);
  color: var(--copper);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: 700;
  margin-bottom: 18px;
}
.step-card h3 {
  margin-bottom: 8px;
}
.step-card p {
  color: var(--muted);
  font-size: 15px;
  line-height: 1.85;
}
.process-stage {
  border: 1px solid var(--line);
  background: var(--panel);
  border-radius: var(--radius);
  overflow: hidden;
}
.process-stage img {
  width: 100%;
  height: clamp(220px, 34vw, 420px);
  object-fit: cover;
  background: var(--copper-bg);
}
.stage-caption {
  padding: 14px 18px;
  display: flex;
  justify-content: space-between;
  gap: 16px;
  color: var(--muted);
  font-size: 14px;
  border-top: 1px solid var(--line);
}
.stage-caption strong {
  color: var(--ink);
  font-weight: 600;
}
@media (max-width: 960px) {
  .process-track {
    grid-template-columns: 1fr 1fr;
  }
  .process-track::before {
    display: none;
  }
}
@media (max-width: 520px) {
  .process-track {
    grid-template-columns: 1fr;
  }
}
@media (prefers-reduced-motion: no-preference) {
  .step-card {
    animation: fadeUp .7s both;
  }
  .step-card:nth-child(2) { animation-delay: .12s; }
  .step-card:nth-child(3) { animation-delay: .22s; }
  .step-card:nth-child(4) { animation-delay: .32s; }
  @keyframes fadeUp {
    from { opacity: 0; transform: translateY(16px); }
    to { opacity: 1; transform: translateY(0); }
  }
}

/*  Cases  */
.case-rows {
  display: flex;
  flex-direction: column;
}
.case-item {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: clamp(26px, 5vw, 70px);
  align-items: center;
  padding: 42px 0;
  border-bottom: 1px solid var(--line);
  transition: transform .25s ease;
}
.case-item:first-child {
  padding-top: 6px;
}
.case-item:hover {
  transform: translateX(4px);
}
.case-media {
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--copper-bg);
}
.case-media img {
  width: 100%;
  height: clamp(200px, 24vw, 340px);
  object-fit: cover;
  transition: transform .45s ease, opacity .45s ease;
}
.case-item:hover .case-media img {
  transform: scale(1.015);
}
.case-info .case-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 14px;
}
.tag {
  display: inline-flex;
  align-items: center;
  padding: 4px 12px;
  border-radius: 99px;
  border: 1px solid var(--line);
  color: var(--copper);
  background: rgba(169,129,78,0.04);
  font-size: 12px;
  line-height: 1.5;
}
.case-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 24px;
  margin: 16px 0 13px;
  font-size: 14px;
  color: var(--muted);
}
.case-meta b {
  font-weight: 600;
  color: var(--ink);
}
.case-desc {
  color: var(--muted);
  font-size: 16px;
  max-width: 64ch;
}
@media (max-width: 900px) {
  .case-item {
    grid-template-columns: 1fr;
    gap: 16px;
    padding: 32px 0;
  }
  .case-item:hover {
    transform: none;
  }
}

/*  Service / 条款  */
.rate-list {
  border-top: 1px solid var(--line-strong);
  margin-top: 28px;
}
.rate-row {
  display: grid;
  grid-template-columns: 240px 1fr 220px;
  gap: 26px;
  padding: 28px 10px;
  border-bottom: 1px solid var(--line);
  transition: background .2s ease;
}
.rate-row:hover {
  background: var(--copper-bg);
}
.rate-name h3 {
  margin-bottom: 6px;
  font-size: clamp(18px, 1.8vw, 23px);
}
.rate-name p {
  color: var(--muted);
  font-size: 13px;
}
.rate-desc {
  color: var(--body);
  font-size: 15px;
  line-height: 1.85;
}
.rate-fee {
  color: var(--ink);
  font-weight: 500;
  text-align: right;
}
.rate-fee small {
  display: block;
  color: var(--muted);
  font-weight: 400;
  font-size: 13px;
  margin-top: 4px;
}
.rate-note {
  margin-top: 34px;
  padding: 18px 22px;
  background: var(--copper-bg);
  border-left: 3px solid var(--copper);
  color: var(--body);
  font-size: 15px;
  line-height: 1.85;
  max-width: 760px;
}
@media (max-width: 900px) {
  .rate-row {
    grid-template-columns: 1fr;
    gap: 6px;
  }
  .rate-fee {
    text-align: left;
  }
}

/*  Latest / CMS list  */
.news-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 20px;
  margin-bottom: clamp(28px, 4vw, 44px);
}
.news-list {
  border-top: 1px solid var(--line-strong);
}
.news-row {
  display: grid;
  grid-template-columns: 128px 112px minmax(0, 270px) 1fr 30px;
  gap: 20px;
  align-items: center;
  padding: 26px 6px;
  border-bottom: 1px solid var(--line);
  transition: padding-left .25s ease, background .25s ease;
}
.news-row:hover {
  background: rgba(240, 231, 216, 0.2);
  padding-left: 16px;
}
.news-date {
  color: var(--muted);
  font-size: 14px;
  font-variant-numeric: tabular-nums;
}
.news-category {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 4px 10px;
  border-radius: 99px;
  background: rgba(169,129,78,0.09);
  color: var(--copper);
  font-size: 12px;
  line-height: 1.4;
  width: max-content;
  min-width: 62px;
}
.news-title {
  font-size: 19px;
  font-weight: 600;
  color: var(--ink);
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.news-summary {
  color: var(--muted);
  font-size: 15px;
  line-height: 1.7;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.news-arrow {
  color: var(--copper);
  font-size: 20px;
  text-align: center;
  transition: transform .2s ease;
}
.news-row:hover .news-arrow {
  transform: translateX(4px);
}
.news-empty {
  padding: 46px 22px;
  text-align: center;
  border-bottom: 1px solid var(--line);
  background: rgba(244, 241, 234, 0.5);
}
.news-empty p {
  color: var(--muted);
  margin-bottom: 12px;
}
@media (max-width: 860px) {
  .news-row {
    grid-template-columns: 100px 1fr 20px;
  }
  .news-date {
    grid-row: span 2;
  }
  .news-category {
    justify-self: start;
  }
  .news-title {
    grid-column: 2;
    grid-row: 1;
  }
  .news-summary {
    display: none;
  }
  .news-arrow {
    grid-column: 3;
    grid-row: 1;
  }
}
@media (max-width: 520px) {
  .news-row {
    grid-template-columns: 1fr 20px;
    gap: 8px 12px;
  }
  .news-date {
    grid-column: 1;
    grid-row: auto;
  }
  .news-category {
    grid-column: 1;
    justify-self: start;
  }
  .news-title {
    grid-column: 1;
  }
  .news-arrow {
    grid-column: 2;
  }
}

/*  FAQ  */
.faq-wrap {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: clamp(36px, 6vw, 90px);
}
@media (max-width: 960px) {
  .faq-wrap {
    grid-template-columns: 1fr;
    gap: 24px;
  }
}
.faq-list {
  display: flex;
  flex-direction: column;
}
.faq-item {
  border-bottom: 1px solid var(--line-strong);
}
.q-toggle {
  width: 100%;
  display: grid;
  grid-template-columns: 44px 1fr 32px;
  gap: 16px;
  align-items: center;
  text-align: left;
  background: transparent;
  border: none;
  padding: 24px 4px;
  cursor: pointer;
  color: var(--ink);
  transition: color .2s ease;
}
.q-toggle:hover {
  color: var(--copper);
}
.q-index {
  color: var(--copper);
  font-size: 13px;
  font-weight: 600;
}
.q-title {
  font-size: 18px;
  font-weight: 600;
  line-height: 1.5;
}
.q-icon {
  color: var(--copper);
  font-size: 26px;
  font-weight: 300;
  line-height: 1;
  text-align: right;
  transition: transform .3s ease;
}
.faq-item.active .q-icon {
  transform: rotate(45deg);
}
.q-panel {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows .32s ease;
}
.faq-item.active .q-panel {
  grid-template-rows: 1fr;
}
.q-content {
  overflow: hidden;
  padding-left: 58px;
  padding-right: 20px;
}
.q-inner {
  padding-bottom: 26px;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.9;
}
.q-inner a {
  color: var(--copper);
  border-bottom: 1px solid rgba(169,129,78,.4);
}
.q-inner a:hover {
  border-color: var(--copper);
}
@media (max-width: 600px) {
  .q-toggle {
    grid-template-columns: 32px 1fr 24px;
    gap: 8px;
    padding: 20px 2px;
  }
  .q-icon {
    font-size: 22px;
  }
  .q-content {
    padding-left: 40px;
  }
}

/*  Bottom CTA  */
.cta-conversion {
  padding: clamp(90px, 10vw, 150px) 0;
  color: rgba(255,255,255,0.86);
  background: var(--dark);
}
.cta-conversion .section-eyebrow,
.cta-conversion h2 {
  color: #fff;
}
.cta-conversion h2 {
  margin-bottom: 18px;
}
.cta-conversion p {
  color: var(--dark-soft);
  max-width: 60ch;
  margin-bottom: 34px;
}
.cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}
.cta-actions a {
  min-width: 170px;
}
.cta-note {
  margin-top: 22px;
  font-size: 14px;
  color: rgba(255,255,255,0.45);
}
@media (max-width: 520px) {
  .cta-actions a {
    width: 100%;
  }
}

/*  Footer  */
.site-footer {
  background: var(--dark);
  color: rgba(255,255,255,0.76);
  padding: 76px 0 110px;
  position: relative;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 0.8fr 1fr;
  gap: 48px 60px;
  padding-bottom: 42px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
  margin-bottom: 28px;
}
.footer-brand .brand-text {
  color: #fff;
  font-size: 22px;
  display: inline-block;
}
.footer-brand p {
  margin-top: 15px;
  font-size: 15px;
  color: rgba(255,255,255,0.6);
  max-width: 44ch;
}
.footer-title {
  color: #fff;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: .06em;
  margin-bottom: 18px;
}
.footer-links li + li {
  margin-top: 8px;
}
.footer-links a {
  color: rgba(255,255,255,0.7);
  font-size: 15px;
  transition: color .2s ease, padding-left .2s ease;
}
.footer-links a:hover {
  color: var(--copper-bright);
  padding-left: 4px;
}
.footer-contact p {
  font-size: 15px;
  color: rgba(255,255,255,0.7);
  line-height: 2;
}
.footer-contact p span {
  color: rgba(255,255,255,0.38);
  margin-right: 6px;
}
.footer-bottom {
  display: flex;
  justify-content: space-between;
  gap: 14px;
  font-size: 14px;
  color: rgba(255,255,255,0.42);
  flex-wrap: wrap;
}
.footer-bottom .legal a {
  color: rgba(255,255,255,0.55);
}
.footer-bottom .legal a:hover {
  color: var(--copper-bright);
}
@media (max-width: 900px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
  .site-footer {
    padding-bottom: 60px;
  }
}
@media (max-width: 600px) {
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 30px;
  }
  .footer-bottom {
    flex-direction: column;
  }
}

/*  Float CTA  */
.float-cta {
  position: fixed;
  right: 26px;
  bottom: 28px;
  z-index: 80;
  width: 54px;
  height: 54px;
  border-radius: 99px;
  background: var(--dark);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 14px 28px rgba(23,27,28,0.2);
  opacity: 0;
  visibility: hidden;
  transform: translateY(14px);
  transition: opacity .3s ease, transform .3s ease, visibility .3s ease, background .25s ease;
}
.float-cta a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 100%;
}
.float-cta svg {
  width: 22px;
  height: 22px;
}
.float-cta:hover {
  background: var(--copper);
  transform: translateY(-2px);
}
body.show-float-cta .float-cta {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.float-cta .fc-text {
  position: absolute;
  right: calc(100% + 10px);
  top: 50%;
  transform: translateY(-50%) translateX(4px);
  background: var(--ink);
  color: #fff;
  font-size: 13px;
  padding: 7px 12px;
  border-radius: 3px;
  white-space: nowrap;
  opacity: 0;
  visibility: hidden;
  transition: opacity .2s ease, visibility .2s ease, transform .25s ease;
}
.float-cta:hover .fc-text {
  opacity: 1;
  visibility: visible;
  transform: translateY(-50%) translateX(0);
}
@media (max-width: 600px) {
  .float-cta {
    width: 50px;
    height: 50px;
    right: 18px;
    bottom: 20px;
  }
}

/*  Utilities  */
.divider {
  border: 0;
  border-top: 1px solid var(--line);
  margin: 0;
}
.muted-text {
  color: var(--muted);
}
.visual-card {
  background: var(--copper-bg);
  border-radius: var(--radius);
  min-height: 220px;
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line);
}
.visual-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.mt-16 { margin-top: 16px; }
.mt-24 { margin-top: 24px; }
.mt-40 { margin-top: 40px; }
.mb-24 { margin-bottom: 24px; }

/* roulang page: article */
:root{
    --bg:#F4F1EA;
    --panel:#FFFFFF;
    --ink:#191D20;
    --body:#33383C;
    --muted:#6F7478;
    --line:#DDD8CE;
    --brass:#A9814E;
    --brass-light:#C79E64;
    --brass-soft:#F0E7D8;
    --dark:#171B1E;
    --danger:#A34B36;
    --container:1280px;
    --header-height:88px;
    --radius:2px;
    --shadow:0 1px 2px rgba(23,26,28,.06);
    --shadow-hover:0 10px 24px rgba(23,26,28,.08);
    --content-pad:32px;
    --ease:cubic-bezier(.22,.61,.36,1);
    --font-family:"PingFang SC","Microsoft YaHei","Noto Sans CJK SC","Source Han Sans SC",system-ui,-apple-system,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:120px}
body{
    margin:0;
    background:var(--bg);
    color:var(--body);
    font-family:var(--font-family);
    font-size:17px;
    line-height:1.85;
    -webkit-font-smoothing:antialiased;
}
main{display:block}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
p,h1,h2,h3,h4,ul,ol,figure,blockquote,table,pre{margin:0}
ul,ol{padding-left:1.3em}
button{font-family:inherit;background:none;border:0;cursor:pointer}
.container{max-width:var(--container);margin:0 auto;padding:0 var(--content-pad)}
.visually-hidden{position:absolute!important;width:1px!important;height:1px!important;padding:0!important;margin:-1px!important;overflow:hidden!important;clip:rect(0 0 0 0)!important;white-space:nowrap!important;border:0!important}

/* buttons */
.btn{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    gap:10px;
    padding:13px 24px;
    border-radius:var(--radius);
    font-size:14px;
    font-weight:700;
    letter-spacing:.03em;
    line-height:1.2;
    text-align:center;
    transition:background .25s var(--ease),color .25s var(--ease),border-color .25s var(--ease),transform .2s var(--ease),box-shadow .25s var(--ease);
}
.btn svg{width:16px;height:16px}
.btn:active{transform:translateY(.5px)}
.btn:focus-visible,.nav-chip:focus-visible,a:focus-visible,button:focus-visible{outline:2px solid var(--brass);outline-offset:3px}
.btn-dark{background:var(--dark);color:#fff;border:1px solid var(--dark)}
.btn-dark:hover{background:var(--brass);border-color:var(--brass);color:#fff;transform:translateY(-2px);box-shadow:var(--shadow-hover)}
.btn-light{background:#fff;color:var(--ink);border:1px solid rgba(255,255,255,.12)}
.btn-light:hover{background:var(--brass);border-color:var(--brass);color:#fff;transform:translateY(-2px);box-shadow:0 8px 24px rgba(23,26,28,.18)}
.btn-ghost{background:transparent;color:var(--ink);border:1px solid var(--line)}
.btn-ghost:hover{border-color:var(--brass);color:var(--brass);transform:translateY(-2px)}
.btn-brass{background:var(--brass);color:#fff;border:1px solid var(--brass)}
.btn-brass:hover{background:var(--dark);border-color:var(--dark);color:#fff;transform:translateY(-2px)}

/* header */
.site-header{
    position:fixed;
    top:0;
    left:0;
    right:0;
    z-index:1000;
    height:var(--header-height);
    background:rgba(23,27,30,.98);
    border-bottom:1px solid rgba(255,255,255,.06);
    transition:height .35s var(--ease),background .35s var(--ease),box-shadow .3s var(--ease);
}
.site-header.scrolled{height:68px;box-shadow:0 8px 30px rgba(0,0,0,.1)}
.header-inner{
    display:flex;
    align-items:center;
    gap:20px;
    height:100%;
}
.brand{
    display:flex;
    align-items:baseline;
    gap:12px;
    flex-shrink:0;
}
.brand-text{
    font-size:21px;
    font-weight:700;
    color:#fff;
    letter-spacing:.02em;
    line-height:1.2;
    white-space:nowrap;
}
.brand-divider{width:1px;height:16px;background:rgba(255,255,255,.3)}
.brand-tag{
    color:rgba(255,255,255,.46);
    font-size:10px;
    letter-spacing:.2em;
    text-transform:uppercase;
    line-height:1;
    white-space:nowrap;
}
.desktop-nav{
    display:flex;
    align-items:center;
    justify-content:center;
    gap:6px;
    flex:1;
    min-width:0;
}
.nav-chip{
    border:1px solid transparent;
    background:transparent;
    color:rgba(255,255,255,.74);
    padding:8px 17px;
    border-radius:99px;
    font-size:14px;
    font-weight:600;
    letter-spacing:.01em;
    white-space:nowrap;
    transition:color .2s var(--ease),background .2s var(--ease),border-color .2s var(--ease);
}
.nav-chip:hover{
    color:#fff;
    background:rgba(255,255,255,.08);
}
.nav-chip.active{
    background:var(--brass-soft);
    color:var(--ink);
    border-color:var(--brass-soft);
}
.header-cta{
    display:flex;
    align-items:center;
    gap:14px;
    flex-shrink:0;
}
.header-cta-btn{padding:10px 20px}
.menu-toggle{
    display:none;
    width:44px;
    height:44px;
    align-items:center;
    justify-content:center;
    color:rgba(255,255,255,.9);
    border:1px solid rgba(255,255,255,.18);
    border-radius:var(--radius);
    transition:background .2s,color .2s;
}
.menu-toggle:hover{background:rgba(255,255,255,.08);color:#fff}
.menu-toggle svg{width:20px;height:20px}
.mobile-menu{
    position:fixed;
    top:var(--header-height);
    left:0;
    right:0;
    z-index:990;
    max-height:0;
    overflow:hidden;
    opacity:0;
    background:rgba(23,27,30,.997);
    border-bottom:1px solid rgba(255,255,255,.08);
    transition:max-height .4s var(--ease),opacity .3s var(--ease);
}
.mobile-menu.open{
    max-height:calc(100vh - var(--header-height));
    overflow-y:auto;
    opacity:1;
    padding:16px 0 36px;
}
.mobile-menu-list{
    display:flex;
    flex-direction:column;
    gap:2px;
    padding:0 20px;
}
.mobile-menu-list .nav-chip{
    display:block;
    text-align:left;
    width:100%;
    padding:13px 8px;
    border-radius:var(--radius);
    border-bottom:1px solid rgba(255,255,255,.08);
    font-size:17px;
    color:rgba(255,255,255,.82);
}
.mobile-menu-list .nav-chip:hover{background:rgba(255,255,255,.05);color:#fff;border-bottom-color:transparent}
.mobile-menu-list .nav-chip.active{background:var(--brass-soft);color:var(--ink)}
.mobile-menu-cta{
    margin-top:20px;
    padding:0 20px;
    display:flex;
    gap:10px;
}

/* main area offset */
.page-main{padding-top:var(--header-height)}

/* breadcrumb */
.breadcrumb-section{
    background:linear-gradient(180deg, rgba(23,27,30,.04), rgba(23,27,30,0));
    padding:46px 0 14px;
}
.breadcrumb-row{
    display:flex;
    align-items:center;
    flex-wrap:wrap;
    gap:7px;
    font-size:14px;
    color:var(--muted);
    max-width:1040px;
    margin:0 auto;
}
.breadcrumb-row a{
    display:inline-flex;
    align-items:center;
    gap:7px;
    color:var(--muted);
    transition:color .2s;
}
.breadcrumb-row a:hover{color:var(--brass)}
.breadcrumb-row .current{
    color:var(--ink);
    max-width:560px;
    overflow:hidden;
    text-overflow:ellipsis;
    white-space:nowrap;
}
.breadcrumb-sep{opacity:.5}

/* article card */
.article-wrap{
    max-width:1040px;
    margin:0 auto;
    padding-bottom:80px;
}
.article-card{
    background:var(--panel);
    border:1px solid var(--line);
    border-radius:var(--radius);
    box-shadow:var(--shadow);
    padding:clamp(28px,5vw,68px);
    margin-bottom:30px;
}
.article-masthead{
    max-width:900px;
    margin:0 auto 0;
    padding-bottom:34px;
}
.article-kicker{
    display:flex;
    align-items:center;
    gap:10px;
    color:var(--brass);
    font-size:13px;
    font-weight:700;
    letter-spacing:.16em;
    text-transform:uppercase;
    margin-bottom:20px;
}
.article-kicker::after{
    content:"";
    height:1px;
    width:52px;
    background:var(--brass);
}
.article-masthead h1{
    color:var(--ink);
    font-size:clamp(30px,4vw,48px);
    line-height:1.28;
    font-weight:800;
    letter-spacing:-.01em;
    margin:0;
}
.article-meta{
    display:flex;
    flex-wrap:wrap;
    align-items:center;
    gap:10px;
    margin-top:22px;
    color:var(--muted);
    font-size:14px;
}
.meta-pill{
    display:inline-flex;
    align-items:center;
    gap:8px;
    background:var(--brass-soft);
    color:var(--ink);
    padding:6px 13px;
    border-radius:99px;
    font-weight:600;
    font-size:13px;
}
.meta-pill svg{width:14px;height:14px;color:var(--brass)}
.article-divider{
    height:1px;
    background:var(--line);
    margin:0 auto 38px;
    max-width:900px;
}
/* article content typography */
.article-copy{
    max-width:780px;
    margin:0 auto;
    color:var(--body);
    font-size:17px;
    line-height:1.9;
    overflow-wrap:break-word;
}
.article-copy p{
    margin:0 0 1.6em;
}
.article-copy strong{color:var(--ink);font-weight:700}
.article-copy a{
    color:var(--brass);
    border-bottom:1px solid rgba(169,129,78,.45);
    transition:border-color .2s,color .2s;
}
.article-copy a:hover{color:var(--dark);border-color:var(--dark)}
.article-copy h2{
    color:var(--ink);
    font-size:clamp(24px,2.8vw,32px);
    line-height:1.4;
    margin:2.2em 0 .8em;
    font-weight:700;
}
.article-copy h3{
    color:var(--ink);
    font-size:clamp(20px,1.8vw,24px);
    line-height:1.5;
    margin:2em 0 .7em;
    font-weight:650;
}
.article-copy h4{
    color:var(--ink);
    font-size:18px;
    margin:1.8em 0 .5em;
    font-weight:650;
}
.article-copy ul,.article-copy ol{
    margin:0 0 1.7em;
}
.article-copy li{margin-bottom:.4em}
.article-copy img,.article-copy figure img{
    border-radius:var(--radius);
    box-shadow:0 4px 20px rgba(23,26,28,.06);
    margin:1.8rem auto;
}
.article-copy figure{margin:2.2rem 0}
.article-copy figcaption{
    text-align:center;
    color:var(--muted);
    font-size:13px;
    line-height:1.6;
    margin-top:-10px;
}
.article-copy blockquote{
    margin:2em 0;
    padding:.8em 1.6em;
    border-left:3px solid var(--brass);
    background:var(--brass-soft);
    color:var(--ink);
    font-size:16px;
    border-radius:0 var(--radius) var(--radius) 0;
}
.article-copy blockquote p:last-child{margin-bottom:0}
.article-copy table{
    width:100%;
    border-collapse:collapse;
    margin:2em 0;
    font-size:15px;
    line-height:1.7;
    overflow-x:auto;
    display:block;
    white-space:nowrap;
    overflow-x:auto;
}
.article-copy table thead th{
    background:var(--dark);
    color:#fff;
    text-align:left;
    font-weight:600;
    padding:12px 16px;
}
.article-copy table td,.article-copy table tbody th{
    border:1px solid var(--line);
    padding:11px 16px;
    color:var(--body);
}
.article-copy table tr:nth-child(even) td{background:#FAF8F3}
.article-copy code{
    background:#EDEAE3;
    color:var(--ink);
    border-radius:3px;
    padding:.15em .4em;
    font-size:.9em;
}
.article-copy pre{
    background:var(--dark);
    color:#E9E5DE;
    border-radius:var(--radius);
    padding:18px 20px;
    overflow-x:auto;
    margin:1.8em 0;
    font-size:14px;
    line-height:1.6;
}
.article-copy pre code{background:none;color:inherit;padding:0}
.article-copy hr{
    border:0;
    height:1px;
    background:var(--line);
    margin:2.4em 0;
}
.article-tail{
    max-width:780px;
    margin:52px auto 0;
    padding-top:24px;
    border-top:1px solid var(--line);
    display:flex;
    align-items:center;
    justify-content:space-between;
    flex-wrap:wrap;
    gap:16px;
}
.tail-note{
    color:var(--muted);
    font-size:14px;
}
/* empty state */
.article-empty{
    max-width:680px;
    margin:40px auto;
    padding:70px 30px;
    text-align:center;
    color:var(--muted);
}
.empty-icon{
    width:64px;
    height:64px;
    margin:0 auto 22px;
    display:flex;
    align-items:center;
    justify-content:center;
    color:var(--brass);
    border:1px solid var(--line);
    border-radius:50%;
    background:var(--bg);
}
.empty-icon svg{width:28px;height:28px}
.article-empty h1{
    color:var(--ink);
    font-size:24px;
    font-weight:700;
    margin-bottom:10px;
}
.article-empty p{margin-bottom:24px}
.empty-actions{display:flex;flex-wrap:wrap;justify-content:center;gap:12px}

/* category guide */
.guide-section{
    padding:20px 0 64px;
}
.guide-panel{
    display:grid;
    grid-template-columns:minmax(280px,5fr) 7fr;
    gap:0;
    background:var(--panel);
    border:1px solid var(--line);
    border-radius:var(--radius);
    overflow:hidden;
    box-shadow:var(--shadow);
}
.guide-media{
    position:relative;
    min-height:320px;
    overflow:hidden;
    background:var(--dark);
}
.guide-media img,.guide-media picture{
    position:absolute;
    inset:0;
    width:100%;
    height:100%;
    object-fit:cover;
}
.guide-content{
    padding:clamp(26px,4vw,54px);
    display:flex;
    flex-direction:column;
    justify-content:center;
}
.section-kicker{
    display:inline-flex;
    align-items:center;
    gap:8px;
    font-size:13px;
    font-weight:700;
    letter-spacing:.16em;
    color:var(--brass);
    margin-bottom:18px;
}
.section-kicker::before{
    content:"";
    width:24px;
    height:2px;
    background:var(--brass);
}
.guide-content h2{
    color:var(--ink);
    font-size:clamp(24px,2.6vw,34px);
    line-height:1.35;
    margin-bottom:16px;
    font-weight:700;
    letter-spacing:-.01em;
}
.guide-content p{
    color:var(--muted);
    margin-bottom:24px;
    font-size:16px;
}
.guide-actions{
    display:flex;
    flex-wrap:wrap;
    gap:12px;
}
.guide-actions .btn{min-width:126px}

/* contact cta */
.consult-cta{
    position:relative;
    padding:90px 0 100px;
    background:
        linear-gradient(180deg, rgba(23,27,30,.82), rgba(23,27,30,.92)),
        url('/assets/images/backpic/back-2.webp') center/cover no-repeat,
        var(--dark);
    color:#fff;
}
.consult-inner{
    max-width:900px;
    text-align:center;
    margin:0 auto;
}
.consult-inner .section-kicker{
    justify-content:center;
    color:var(--brass-light);
}
.consult-inner .section-kicker::before{display:none}
.consult-inner h2{
    color:#fff;
    font-size:clamp(26px,3vw,40px);
    line-height:1.35;
    margin-bottom:18px;
    font-weight:700;
    letter-spacing:-.01em;
}
.consult-inner p{
    color:rgba(255,255,255,.72);
    font-size:16px;
    margin-bottom:30px;
}
.consult-actions{
    display:flex;
    flex-wrap:wrap;
    justify-content:center;
    gap:14px;
}
.consult-actions .btn-light{
    border-color:#FFF;
}
.consult-actions .btn-ghost{
    color:#fff;
    border-color:rgba(255,255,255,.55);
}
.consult-actions .btn-ghost:hover{border-color:var(--brass-light);color:var(--brass-light)}

/* footer */
.site-footer{
    position:relative;
    background:var(--dark);
    color:rgba(255,255,255,.68);
    padding-top:72px;
    padding-bottom:32px;
    z-index:2;
}
.site-footer::before{
    content:"";
    display:block;
    position:absolute;
    left:0;right:0;top:0;
    height:1px;
    background:linear-gradient(90deg,transparent,rgba(199,158,100,.55),transparent);
}
.footer-grid{
    display:grid;
    grid-template-columns:6fr 3fr 4fr;
    gap:44px;
    padding-bottom:48px;
}
.footer-brand{
    display:flex;
    align-items:center;
    margin-bottom:16px;
}
.footer-brand .brand-text{
    color:#fff;
    font-size:20px;
    font-weight:700;
    letter-spacing:.03em;
}
.footer-brand-column>p{
    font-size:15px;
    line-height:1.85;
    color:rgba(255,255,255,.56);
    max-width:360px;
}
.footer-title{
    color:rgba(255,255,255,.9);
    font-size:15px;
    font-weight:700;
    letter-spacing:.08em;
    margin-bottom:16px;
}
.footer-links{
    list-style:none;
    padding:0;
    display:flex;
    flex-direction:column;
    gap:10px;
}
.footer-links a{
    color:rgba(255,255,255,.58);
    font-size:15px;
    transition:color .2s,padding-left .2s;
}
.footer-links a:hover{
    color:var(--brass-light);
    padding-left:6px;
}
.footer-contact p{
    margin:0 0 15px;
    font-size:15px;
    display:flex;
    flex-direction:column;
    gap:2px;
}
.footer-contact span{
    color:rgba(255,255,255,.42);
    font-size:13px;
    letter-spacing:.04em;
}
.footer-bottom{
    display:flex;
    justify-content:space-between;
    flex-wrap:wrap;
    gap:12px;
    padding-top:22px;
    border-top:1px solid rgba(255,255,255,.12);
    color:rgba(255,255,255,.44);
    font-size:13px;
}
.footer-bottom .legal{color:rgba(255,255,255,.3)}

/* floating cta */
.float-cta{
    position:fixed;
    right:26px;
    bottom:34px;
    z-index:850;
    width:54px;
    height:54px;
    border-radius:50%;
    background:var(--dark);
    color:#fff;
    display:flex;
    align-items:center;
    justify-content:center;
    opacity:0;
    visibility:hidden;
    transform:translateY(16px);
    box-shadow:0 12px 30px rgba(0,0,0,.22);
    transition:all .35s var(--ease);
}
.float-cta.show{
    opacity:1;
    visibility:visible;
    transform:translateY(0);
}
.float-cta:hover{
    background:var(--brass);
    color:#fff;
    transform:translateY(-3px);
}
.float-cta:focus-visible{outline:2px solid var(--brass);outline-offset:3px}
.float-cta svg{width:22px;height:22px}

/* responsive */
@media (max-width:1024px){
    :root{--content-pad:24px}
    .desktop-nav .nav-chip:nth-child(n+4){display:none}
    .footer-grid{grid-template-columns:1fr 1fr}
    .guide-panel{grid-template-columns:1fr}
    .guide-media{min-height:260px}
}
@media (max-width:960px){
    .desktop-nav{display:none}
    .menu-toggle{display:inline-flex}
    .header-inner{justify-content:space-between}
    .header-cta{margin-left:auto}
    .article-wrap{max-width:100%}
}
@media (max-width:768px){
    body{font-size:16px;line-height:1.8}
    :root{--content-pad:20px}
    .brand-tag{display:none}
    .brand-text{font-size:18px}
    .header-cta-btn{display:none}
    .footer-grid{grid-template-columns:1fr;gap:32px;padding-bottom:32px}
    .footer-bottom{flex-direction:column}
    .breadcrumb-section{padding:28px 0 10px}
    .article-card{padding:22px 18px}
    .article-masthead{padding-bottom:24px}
    .article-divider{margin-bottom:28px}
    .article-tail{flex-direction:column;justify-content:flex-start}
    .consult-cta{padding:58px 0;background:linear-gradient(180deg, rgba(23,27,30,.84), rgba(23,27,30,.94)),url('/assets/images/backpic/back-2.webp') center/cover no-repeat,var(--dark)}
}
@media (max-width:520px){
    :root{--content-pad:18px}
    .article-kicker{font-size:12px}
    .article-meta{margin-top:16px;gap:8px}
    .meta-pill{font-size:12px;padding:5px 10px}
    .footer-grid{gap:26px}
    .float-cta{right:18px;bottom:22px;width:50px;height:50px}
    .mobile-menu .nav-chip{padding-left:4px}
    .article-empty h1{font-size:22px}
}
@media (prefers-reduced-motion: reduce){
    *,*::before,*::after{
        animation-duration:.001s!important;
        transition-duration:.001s!important;
        scroll-behavior:auto!important;
    }
}

/* roulang page: category1 */
/* ========== 石墨精密 · 设计变量 ========== */
:root {
  --bg: #F4F1EA;
  --surface: #FFFFFF;
  --ink: #191D20;
  --text: #33383C;
  --muted: #6F7478;
  --line: #DDD8CE;
  --line-soft: #E7E1D6;
  --brass: #A9814E;
  --brass-light: #C79E64;
  --brass-soft: #F0E7D8;
  --danger: #A34B36;
  --dark: #171B1E;
  --font-cn: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: "SFMono-Regular", Consolas, "Liberation Mono", "Roboto Mono", monospace;
  --shadow: 0 1px 2px rgba(23, 26, 28, 0.06);
  --shadow-hover: 0 10px 24px rgba(23, 26, 28, 0.08);
  --radius: 2px;
  --radius-pill: 99px;
  --container: 1280px;
}

/* ========== Reset / Base ========== */
*, *::before, *::after {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
  scroll-padding-top: 130px;
}
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-cn);
  font-size: 17px;
  line-height: 1.85;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
body.no-scroll {
  overflow: hidden;
}
img {
  display: block;
  max-width: 100%;
  border: 0;
}
a {
  color: inherit;
  text-decoration: none;
  transition: color 0.2s ease, background-color 0.2s ease, border-color 0.2s ease, opacity 0.2s ease, transform 0.2s ease;
}
a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible,
summary:focus-visible {
  outline: 2px solid var(--brass);
  outline-offset: 3px;
}
button {
  background: none;
  border: 0;
  cursor: pointer;
  color: inherit;
}
h1, h2, h3, p, dl, dd, figure {
  margin: 0;
}
ul, ol {
  margin: 0;
  padding: 0;
  list-style: none;
}
input, select, textarea {
  font-family: inherit;
}

/* ========== 容器与工具 ========== */
.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: 32px;
}
.section {
  padding: 110px 0;
}
.section-white {
  background: var(--surface);
  border-top: 1px solid var(--line-soft);
  border-bottom: 1px solid var(--line-soft);
}
.eyebrow {
  display: block;
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--brass);
  margin-bottom: 18px;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  height: 48px;
  padding: 0 26px;
  border-radius: var(--radius);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.01em;
  border: 1px solid transparent;
  transition: all 0.22s ease;
}
.btn:hover {
  transform: translateY(-1px);
}
.btn:active {
  transform: translateY(0.5px);
}
.btn-primary {
  background: var(--dark);
  color: #FFFFFF;
  border-color: var(--dark);
}
.btn-primary:hover {
  background: var(--brass);
  border-color: var(--brass);
  color: #FFFFFF;
}
.btn-outline {
  background: transparent;
  color: var(--dark);
  border-color: rgba(23, 27, 30, 0.5);
}
.btn-outline:hover {
  border-color: var(--brass);
  color: var(--brass);
}
.btn-outline-light {
  background: transparent;
  color: #FFFFFF;
  border-color: rgba(255, 255, 255, 0.36);
}
.btn-outline-light:hover {
  border-color: var(--brass-light);
  color: var(--brass-light);
}
.btn-light {
  background: var(--surface);
  color: var(--dark);
  border-color: var(--surface);
}
.btn-light:hover {
  background: var(--brass-soft);
  border-color: var(--brass-soft);
  color: var(--dark);
}
.btn-sm {
  height: 36px;
  padding: 0 16px;
  font-size: 13px;
}
.badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 26px;
  padding: 0 12px;
  border-radius: var(--radius-pill);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.04em;
  background: rgba(23, 27, 30, 0.06);
  color: var(--text);
  border: 1px solid transparent;
  white-space: nowrap;
}
.badge-brass {
  background: var(--brass-soft);
  color: #785C32;
}
.badge-light {
  background: rgba(255, 255, 255, 0.1);
  color: rgba(255, 255, 255, 0.86);
  backdrop-filter: blur(4px);
}
.text-muted {
  color: var(--muted);
}

/* ========== 顶部导航 ========== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(23, 27, 30, 0.96);
  border-bottom: 1px solid transparent;
  transition: background-color 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}
.site-header.is-scrolled {
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.04), 0 8px 30px rgba(0, 0, 0, 0.16);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  height: 88px;
  transition: height 0.3s ease;
}
.site-header.is-scrolled .header-inner {
  height: 68px;
}
.brand {
  display: inline-flex;
  align-items: center;
  flex-shrink: 0;
  gap: 0;
  padding: 4px 0;
}
.brand-text {
  font-size: 21px;
  font-weight: 700;
  color: #FFFFFF;
  letter-spacing: 0.01em;
  white-space: nowrap;
}
.brand-divider {
  width: 1px;
  height: 18px;
  background: rgba(255, 255, 255, 0.26);
  margin-inline: 12px;
}
.brand-tag {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: rgba(255, 255, 255, 0.56);
  text-transform: uppercase;
}
.desktop-nav {
  display: flex;
  align-items: center;
  gap: 4px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: var(--radius-pill);
  padding: 4px;
}
.desktop-nav .nav-chip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 38px;
  padding: 0 17px;
  border-radius: var(--radius-pill);
  font-size: 14px;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.74);
  border: 1px solid transparent;
  transition: all 0.22s ease;
  white-space: nowrap;
}
.desktop-nav .nav-chip:hover {
  color: #FFFFFF;
  background: rgba(255, 255, 255, 0.1);
}
.desktop-nav .nav-chip.active {
  color: var(--ink);
  background: var(--brass-soft);
  font-weight: 600;
}
.header-cta {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.header-cta-btn {
  height: 42px;
  padding: 0 20px;
}
.menu-toggle {
  display: none;
  width: 42px;
  height: 42px;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--radius);
  color: #FFFFFF;
  transition: all 0.2s ease;
}
.menu-toggle:hover {
  border-color: var(--brass);
  color: var(--brass-light);
}
.menu-toggle svg {
  width: 22px;
  height: 22px;
}

/* 移动端菜单 */
.mobile-menu {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: rgba(23, 27, 30, 0.99);
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  padding: 28px 24px 32px;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.18);
  gap: 24px;
}
.mobile-menu.open {
  display: flex;
  flex-direction: column;
}
.mobile-menu-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}
.mobile-menu .nav-chip {
  display: flex;
  align-items: center;
  min-height: 50px;
  padding: 0 18px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: var(--radius-pill);
  font-size: 16px;
  color: rgba(255, 255, 255, 0.82);
}
.mobile-menu .nav-chip.active {
  background: var(--brass-soft);
  color: var(--ink);
  border-color: transparent;
}
.mobile-menu-cta {
  margin-top: 8px;
}

/* ========== 页头 / 小尺寸 Hero ========== */
.page-lead {
  background: var(--surface);
  border-bottom: 1px solid var(--line);
  padding: 168px 0 72px;
}
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--muted);
  margin-bottom: 42px;
}
.breadcrumb a {
  color: var(--muted);
}
.breadcrumb a:hover {
  color: var(--brass);
}
.breadcrumb .sep {
  color: #B7B2AA;
}
.page-lead h1 {
  max-width: 980px;
  font-size: clamp(44px, 6vw, 80px);
  font-weight: 800;
  line-height: 1.14;
  letter-spacing: -0.015em;
  color: var(--ink);
  margin-bottom: 26px;
  text-wrap: balance;
}
.lead-summary {
  max-width: 780px;
  font-size: 18px;
  line-height: 1.9;
  color: var(--text);
  margin-bottom: 42px;
}
.lead-eyebrow {
  margin-bottom: 16px;
}
.lead-highlights {
  display: flex;
  flex-wrap: wrap;
  gap: 0;
  border-top: 1px solid var(--line);
}
.lead-highlights > div {
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-width: 180px;
  padding: 20px 32px 8px 0;
  margin-right: 48px;
}
.lead-highlights strong {
  font-size: 21px;
  font-weight: 700;
  color: var(--ink);
  line-height: 1.4;
}
.lead-highlights span {
  font-size: 13px;
  color: var(--muted);
  line-height: 1.5;
}

/* ========== 资料主版式：锚点两栏 ========== */
.catalog-section {
  background: var(--bg);
  padding: 92px 0 120px;
}
.catalog-grid {
  display: grid;
  grid-template-columns: 220px minmax(0, 1fr);
  gap: 64px;
  align-items: start;
}
.doc-sidebar {
  position: sticky;
  top: 140px;
}
.doc-sidebar-label {
  font-size: 13px;
  color: var(--muted);
  letter-spacing: 0.1em;
  margin-bottom: 18px;
  display: block;
}
.doc-index {
  border-top: 1px solid var(--line);
}
.doc-index-list a {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 15px 0 14px;
  border-bottom: 1px solid var(--line);
  font-size: 15px;
  font-weight: 500;
  color: var(--text);
  transition: all 0.2s ease;
}
.doc-index-list a .no {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--brass);
  min-width: 24px;
}
.doc-index-list a:hover {
  color: var(--brass);
  padding-left: 6px;
}
.doc-sidebar-note {
  margin-top: 36px;
  padding: 18px 20px;
  background: var(--brass-soft);
  border: 1px solid rgba(169, 129, 78, 0.18);
  border-radius: var(--radius);
  font-size: 14px;
  color: #5C4A32;
  line-height: 1.7;
}
.doc-content {
  min-width: 0;
  max-width: 920px;
}
.doc-intro {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 30px 36px 28px;
  margin-bottom: 40px;
}
.doc-intro h2 {
  font-size: 22px;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 12px;
}
.doc-intro p {
  font-size: 16px;
  color: var(--text);
}
.doc-section {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 42px 44px;
  margin-bottom: 40px;
}
.doc-section-head {
  display: flex;
  align-items: baseline;
  gap: 18px;
  margin-bottom: 12px;
}
.doc-section-id {
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--brass);
  white-space: nowrap;
}
.doc-section h2 {
  font-size: clamp(25px, 2.8vw, 35px);
  font-weight: 700;
  color: var(--ink);
  line-height: 1.32;
  letter-spacing: -0.01em;
}
.doc-section-intro {
  font-size: 16px;
  color: var(--muted);
  margin-bottom: 30px;
  padding-left: 86px;
  line-height: 1.85;
}
.doc-list {
  margin-top: 10px;
}
.doc-item {
  display: grid;
  grid-template-columns: 56px minmax(0, 1fr) auto;
  gap: 20px;
  align-items: center;
  padding: 24px 0;
  border-bottom: 1px solid var(--line-soft);
  transition: padding 0.2s ease, background-color 0.2s ease;
}
.doc-item:last-child {
  border-bottom: 0;
}
.doc-item:hover {
  padding-left: 6px;
  background: linear-gradient(90deg, rgba(240, 231, 216, 0.45), transparent 75%);
}
.doc-item-no {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--brass);
  letter-spacing: 0.06em;
}
.doc-item h3 {
  font-size: 18px;
  font-weight: 650;
  color: var(--ink);
  margin-bottom: 5px;
  line-height: 1.5;
}
.doc-item p {
  font-size: 15px;
  color: var(--muted);
  line-height: 1.7;
}
.doc-meta {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 8px;
}
.doc-code {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--muted);
  letter-spacing: 0.03em;
}
.doc-figure {
  margin: 36px 0 0;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  overflow: hidden;
  background: #F8F6F1;
}
.doc-figure img {
  width: 100%;
  aspect-ratio: 16 / 8;
  object-fit: cover;
  background: #E9E4DB;
}
.doc-figure figcaption {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  padding: 16px 20px;
  font-size: 13px;
  color: var(--muted);
  border-top: 1px solid var(--line-soft);
}
.doc-figure figcaption::before {
  content: "注";
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 22px;
  padding: 0 8px;
  background: var(--brass-soft);
  color: #785C32;
  border-radius: 99px;
  font-size: 12px;
  font-weight: 600;
}
.note {
  margin-top: 26px;
  padding: 16px 20px;
  background: var(--brass-soft);
  border-left: 2px solid var(--brass);
  border-radius: 0 var(--radius) var(--radius) 0;
  color: #4F4233;
  font-size: 15px;
  line-height: 1.8;
}

/* ========== 交付规范 ========== */
.delivery-section {
  background: #FFFFFF;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding: 100px 0 90px;
}
.section-heading {
  max-width: 760px;
  margin-bottom: 54px;
}
.section-heading h2 {
  font-size: clamp(28px, 3.4vw, 46px);
  font-weight: 700;
  color: var(--ink);
  line-height: 1.3;
  letter-spacing: -0.01em;
  margin-bottom: 18px;
}
.section-heading p {
  font-size: 16px;
  color: var(--muted);
}
.spec-row {
  display: grid;
  grid-template-columns: 180px minmax(0, 1fr) 210px;
  gap: 36px;
  align-items: start;
  padding: 32px 0;
  border-bottom: 1px solid var(--line-soft);
  transition: background-color 0.2s ease;
}
.spec-row:last-child {
  border-bottom: 0;
}
.spec-row:hover {
  background: rgba(244, 241, 234, 0.4);
}
.spec-format {
  font-family: var(--mono);
  font-size: 15px;
  font-weight: 700;
  color: var(--ink);
  letter-spacing: 0.06em;
  padding-top: 4px;
}
.spec-desc h3 {
  font-size: 18px;
  font-weight: 650;
  color: var(--ink);
  margin-bottom: 6px;
}
.spec-desc p {
  font-size: 15px;
  color: var(--muted);
  line-height: 1.8;
}
.spec-tip {
  font-size: 13px;
  color: var(--muted);
  text-align: right;
  padding-top: 8px;
  line-height: 1.7;
}

/* ========== 流程步骤 ========== */
.process-section {
  padding: 110px 0 120px;
}
.process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.process-step {
  position: relative;
  padding: 32px 28px 26px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  transition: all 0.25s ease;
}
.process-step::before {
  content: "";
  position: absolute;
  top: 34px;
  right: -13px;
  width: 20px;
  height: 1px;
  background: rgba(169, 129, 78, 0.45);
}
.process-step:last-child::before {
  display: none;
}
.process-step:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-hover);
}
.step-no {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--dark);
  color: #FFFFFF;
  font-family: var(--mono);
  font-size: 13px;
  margin-bottom: 34px;
}
.process-step h3 {
  font-size: 18px;
  font-weight: 650;
  color: var(--ink);
  margin-bottom: 10px;
}
.process-step p {
  font-size: 14px;
  color: var(--muted);
  line-height: 1.75;
}

/* ========== FAQ ========== */
.faq-section {
  padding: 110px 0 120px;
  background: var(--bg);
}
.faq-layout {
  display: grid;
  grid-template-columns: 0.8fr 1.4fr;
  gap: 72px;
  align-items: start;
}
.faq-title h2 {
  font-size: clamp(28px, 3.2vw, 44px);
  font-weight: 700;
  color: var(--ink);
  line-height: 1.3;
  letter-spacing: -0.01em;
  margin-bottom: 18px;
}
.faq-title p {
  font-size: 15px;
  color: var(--muted);
  line-height: 1.85;
}
.faq-panel {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}
.faq-item {
  border-bottom: 1px solid var(--line);
}
.faq-item:last-child {
  border-bottom: 0;
}
.faq-item summary {
  display: flex;
  align-items: baseline;
  gap: 18px;
  padding: 22px 28px;
  cursor: pointer;
  list-style: none;
  font-size: 16px;
  font-weight: 600;
  color: var(--ink);
  transition: color 0.2s ease;
}
.faq-item summary::-webkit-details-marker {
  display: none;
}
.faq-item summary .q-no {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--brass);
}
.faq-item summary:hover {
  color: var(--brass);
}
.faq-answer {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 0.35s ease;
}
.faq-answer > div {
  overflow: hidden;
}
.faq-item[open] .faq-answer {
  grid-template-rows: 1fr;
}
.faq-answer p {
  padding: 0 28px 24px 70px;
  font-size: 15px;
  color: var(--muted);
  line-height: 1.9;
}

/* ========== 深色 CTA ========== */
.cta-dark {
  background: var(--dark);
  color: #FFFFFF;
  padding: 100px 0 110px;
  position: relative;
  overflow: hidden;
}
.cta-dark::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(169, 129, 78, 0.75), transparent);
}
.cta-inner {
  position: relative;
  z-index: 1;
  max-width: 900px;
  text-align: center;
  margin-inline: auto;
}
.cta-dark .cta-eyebrow {
  color: var(--brass-light);
}
.cta-dark h2 {
  font-size: clamp(30px, 4vw, 50px);
  font-weight: 700;
  line-height: 1.28;
  letter-spacing: -0.01em;
  margin-bottom: 20px;
  color: #FFFFFF;
}
.cta-dark p {
  font-size: 16px;
  line-height: 1.9;
  color: rgba(255, 255, 255, 0.72);
  max-width: 680px;
  margin-inline: auto;
  margin-bottom: 38px;
}
.cta-actions {
  display: flex;
  justify-content: center;
  gap: 14px;
  flex-wrap: wrap;
}

/* ========== 页脚 ========== */
.site-footer {
  background: var(--dark);
  color: rgba(255, 255, 255, 0.68);
  padding: 90px 0 40px;
  font-size: 15px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 0.8fr 1fr;
  gap: 64px;
  padding-bottom: 64px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}
.footer-brand {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 18px;
}
.footer-brand .brand-text {
  font-size: 21px;
  font-weight: 700;
  color: #FFFFFF;
  white-space: nowrap;
}
.footer-brand-column p {
  font-size: 14px;
  line-height: 1.9;
  color: rgba(255, 255, 255, 0.56);
  max-width: 360px;
}
.footer-title {
  font-size: 14px;
  font-weight: 600;
  color: #FFFFFF;
  margin-bottom: 18px;
  letter-spacing: 0.04em;
}
.footer-links li {
  margin-bottom: 12px;
}
.footer-links a {
  color: rgba(255, 255, 255, 0.64);
  font-size: 15px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.footer-links a:hover {
  color: var(--brass-light);
}
.footer-contact p {
  display: flex;
  flex-direction: column;
  margin-bottom: 16px;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.64);
  line-height: 1.7;
}
.footer-contact span {
  font-size: 12px;
  color: rgba(255, 255, 255, 0.4);
  margin-bottom: 2px;
}
.footer-bottom {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
  padding-top: 28px;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.42);
}
.footer-bottom .legal {
  color: rgba(255, 255, 255, 0.34);
}

/* ========== 浮动 CTA ========== */
.float-cta {
  position: fixed;
  right: 28px;
  bottom: 36px;
  z-index: 90;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-height: 54px;
  padding: 0 22px;
  background: var(--dark);
  color: #FFFFFF;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 99px;
  font-size: 14px;
  font-weight: 600;
  box-shadow: 0 10px 30px rgba(23, 27, 30, 0.24);
  opacity: 0;
  visibility: hidden;
  transform: translateY(16px);
  transition: all 0.35s ease;
}
.float-cta.show {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.float-cta:hover {
  background: var(--brass);
  color: #FFFFFF;
  transform: translateY(-2px);
}
.float-cta svg {
  width: 19px;
  height: 19px;
  flex: 0 0 auto;
}
.float-cta .label {
  white-space: nowrap;
}

/* ========== 响应式 ========== */
@media (min-width: 1200px) {
  .doc-section {
    padding: 46px 50px;
  }
}
@media (max-width: 1180px) {
  .brand-tag {
    display: none;
  }
  .desktop-nav .nav-chip {
    padding-inline: 12px;
    font-size: 13px;
  }
  .header-inner {
    gap: 16px;
  }
}
@media (max-width: 1024px) {
  .catalog-grid {
    grid-template-columns: 1fr;
    gap: 36px;
  }
  .doc-sidebar {
    position: static;
    top: auto;
    overflow-x: auto;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--line);
  }
  .doc-sidebar-label {
    display: none;
  }
  .doc-index {
    display: flex;
    gap: 8px;
    border-top: 0;
    min-width: max-content;
  }
  .doc-index-list {
    display: flex;
    gap: 8px;
  }
  .doc-index-list a {
    flex: 0 0 auto;
    align-items: center;
    padding: 10px 16px;
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: 99px;
    font-size: 14px;
    gap: 7px;
    margin: 0;
  }
  .doc-index-list a:hover {
    padding-left: 16px;
  }
  .doc-index-list a .no {
    min-width: auto;
    font-size: 12px;
  }
  .doc-sidebar-note {
    display: none;
  }
  .process-grid {
    grid-template-columns: 1fr 1fr;
    gap: 16px;
  }
  .process-step::before {
    display: none;
  }
  .faq-layout {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 48px;
  }
}
@media (max-width: 960px) {
  .desktop-nav {
    display: none;
  }
  .menu-toggle {
    display: inline-flex;
  }
  .header-cta-btn {
    display: none;
  }
  .header-inner {
    height: 76px;
  }
  .site-header.is-scrolled .header-inner {
    height: 64px;
  }
  .page-lead {
    padding-top: 132px;
  }
}
@media (max-width: 860px) {
  .spec-row {
    grid-template-columns: 1fr;
    gap: 12px;
    padding: 24px 0;
  }
  .spec-tip {
    text-align: left;
  }
}
@media (max-width: 640px) {
  .container {
    padding-inline: 20px;
  }
  .section {
    padding: 72px 0;
  }
  .brand-text {
    font-size: 18px;
  }
  .brand-divider {
    margin-inline: 8px;
  }
  .page-lead {
    padding: 108px 0 48px;
  }
  .page-lead h1 {
    font-size: clamp(36px, 9vw, 48px);
    line-height: 1.2;
  }
  .lead-summary {
    font-size: 16px;
  }
  .lead-highlights {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0;
  }
  .lead-highlights > div {
    min-width: 0;
    margin-right: 0;
    padding-right: 12px;
  }
  .breadcrumb {
    margin-bottom: 28px;
  }
  .doc-intro,
  .doc-section {
    padding: 26px 22px;
  }
  .doc-section-intro {
    padding-left: 0;
    margin-top: 10px;
  }
  .doc-item {
    grid-template-columns: 1fr;
    gap: 8px;
    padding: 20px 0;
  }
  .doc-item-no {
    font-size: 12px;
  }
  .doc-meta {
    flex-direction: row;
    align-items: center;
    justify-content: flex-start;
    gap: 8px;
    margin-top: 4px;
  }
  .doc-figure img {
    aspect-ratio: 16 / 10;
  }
  .doc-figure figcaption {
    padding: 12px 14px;
  }
  .section-heading {
    margin-bottom: 32px;
  }
  .process-grid {
    grid-template-columns: 1fr;
  }
  .process-step {
    padding: 26px 22px;
  }
  .step-no {
    margin-bottom: 18px;
  }
  .faq-item summary {
    flex-direction: column;
    gap: 4px;
    padding: 18px 20px 12px;
  }
  .faq-answer p {
    padding: 4px 20px 20px;
  }
  .cta-dark {
    padding: 78px 0 86px;
  }
  .cta-actions .btn {
    width: 100%;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 36px;
  }
  .float-cta {
    right: 18px;
    bottom: 22px;
    min-width: 48px;
    min-height: 48px;
    padding: 0 18px;
  }
  .mobile-menu-list {
    grid-template-columns: 1fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *,
  *::before,
  *::after {
    animation-duration: 0.001s !important;
    transition-duration: 0.001s !important;
  }
}

/* roulang page: category3 */
:root{
    --page-bg:#F4F1EA;
    --panel:#FFFFFF;
    --ink:#191D20;
    --body:#33383C;
    --muted:#6F7478;
    --line:#DDD8CE;
    --line-strong:#c8c1b2;
    --accent:#A9814E;
    --accent-bright:#C79E64;
    --accent-soft:#F0E7D8;
    --danger:#A34B36;
    --dark:#171B1E;
    --dark-soft:#22282C;
    --radius:2px;
    --shadow:0 1px 2px rgba(23,26,28,0.06);
    --shadow-hover:0 10px 24px rgba(23,26,28,0.08);
    --container:1280px;
    --font:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei","Noto Sans CJK SC","Helvetica Neue",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:120px}
body{
    font-family:var(--font);
    background:var(--page-bg);
    color:var(--body);
    font-size:17px;
    line-height:1.85;
    -webkit-font-smoothing:antialiased;
    -moz-osx-font-smoothing:grayscale;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
ul,ol{list-style:none}
button,input,select,textarea{font:inherit}
body.no-scroll{overflow:hidden}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible,summary:focus-visible{
    outline:2px solid var(--accent);
    outline-offset:3px;
    border-radius:2px;
}
.container{
    width:100%;
    max-width:1280px;
    margin-left:auto;
    margin-right:auto;
    padding-left:32px;
    padding-right:32px;
}
@media(max-width:1024px){.container{padding-left:24px;padding-right:24px}}
@media(max-width:640px){.container{padding-left:20px;padding-right:20px}}

/* 按钮 */
.btn{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    gap:8px;
    min-height:46px;
    padding:10px 24px;
    border-radius:2px;
    font-size:15px;
    font-weight:600;
    line-height:1.4;
    letter-spacing:.02em;
    cursor:pointer;
    border:1px solid transparent;
    transition:transform .2s ease,background-color .2s ease,color .2s ease,border-color .2s ease,box-shadow .2s ease;
    text-align:center;
    white-space:nowrap;
    position:relative;
    overflow:hidden;
}
.btn svg{width:17px;height:17px;display:block}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--dark);color:#fff}
.btn-primary:hover{
    background:var(--accent);
    color:#fff;
    border-color:var(--accent);
    transform:translateY(-1px);
    box-shadow:var(--shadow-hover);
}
.btn-dark{background:var(--dark);color:#fff;border-color:var(--dark)}
.btn-dark:hover{background:var(--accent);border-color:var(--accent);transform:translateY(-1px);box-shadow:var(--shadow-hover)}
.btn-outline{
    background:transparent;
    color:var(--ink);
    border-color:var(--line-strong);
}
.btn-outline:hover{border-color:var(--accent);color:var(--accent);transform:translateY(-1px)}
.btn-light{background:#F4F1EA;color:var(--ink);border-color:rgba(255,255,255,.2)}
.btn-light:hover{background:var(--accent-bright);border-color:var(--accent-bright);color:#fff;transform:translateY(-1px)}
.btn-outline-light{
    background:transparent;
    color:#fff;
    border-color:rgba(255,255,255,.45);
}
.btn-outline-light:hover{border-color:var(--accent-bright);color:var(--accent-bright);background:rgba(244,241,234,.04)}
.btn[class*="shine"]::after{
    content:"";
    position:absolute;
    top:0;left:-150%;
    width:60%;
    height:100%;
    background:linear-gradient(120deg,transparent,rgba(255,255,255,.15),transparent);
    transform:skewX(-25deg);
    transition:left .45s ease;
}
.btn[class*="shine"]:hover::after{left:150%}

/* 头部 */
.skip-link{
    position:fixed;
    left:16px;
    top:-100px;
    z-index:200;
    background:var(--dark);
    color:#fff;
    padding:10px 20px;
    border-radius:2px;
    transition:top .2s ease;
    font-size:14px;
}
.skip-link:focus{top:16px}
.site-header{
    position:fixed;
    top:0;
    left:0;
    width:100%;
    background:rgba(23,27,30,.97);
    z-index:100;
    border-bottom:1px solid rgba(255,255,255,.04);
    transition:background .3s,box-shadow .3s;
}
.site-header ::selection{background:var(--accent);color:#fff}
.site-header.scrolled{box-shadow:0 10px 26px rgba(0,0,0,.18)}
.header-inner{
    height:88px;
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:24px;
    transition:height .3s ease;
}
.site-header.scrolled .header-inner{height:70px}
.brand{
    display:inline-flex;
    align-items:center;
    gap:14px;
    flex-shrink:0;
    min-width:0;
}
.brand-text{
    font-size:21px;
    font-weight:700;
    color:#fff;
    letter-spacing:.01em;
    white-space:nowrap;
    line-height:1.2;
}
.brand-divider{
    width:1px;
    height:18px;
    background:rgba(255,255,255,.3);
}
.brand-tag{
    font-size:11px;
    color:rgba(255,255,255,.55);
    letter-spacing:.14em;
    text-transform:uppercase;
    font-weight:500;
}
.desktop-nav{
    display:flex;
    align-items:center;
    gap:4px;
    flex-wrap:wrap;
    justify-content:center;
}
.nav-chip{
    display:inline-flex;
    align-items:center;
    min-height:38px;
    padding:5px 18px;
    border-radius:99px;
    font-size:14px;
    font-weight:500;
    color:rgba(255,255,255,.78);
    background:transparent;
    border:1px solid transparent;
    transition:background-color .2s,color .2s,border-color .2s;
    white-space:nowrap;
}
.nav-chip:hover{color:#fff;background:rgba(255,255,255,.1)}
.nav-chip.active{background:var(--accent-soft);color:var(--ink);font-weight:650}
.header-cta{
    display:flex;
    align-items:center;
    gap:12px;
    flex-shrink:0;
}
.header-cta-btn{
    min-height:42px;
    font-size:14px;
    padding:7px 20px;
}
.menu-toggle{
    display:none;
    width:42px;
    height:42px;
    border:none;
    background:transparent;
    color:#fff;
    border-radius:2px;
    align-items:center;
    justify-content:center;
    cursor:pointer;
}
.menu-toggle svg{width:22px;height:22px;display:block}

.mobile-menu{
    display:none;
    background:var(--dark);
    border-top:1px solid rgba(255,255,255,.08);
}
.mobile-menu.open{display:block}
.mobile-menu-list{
    display:flex;
    flex-direction:column;
    padding:20px 20px 16px;
    gap:8px;
}
.mobile-menu-list .nav-chip{
    font-size:17px;
    font-weight:600;
    padding:14px 18px;
    min-height:52px;
    color:rgba(255,255,255,.88);
    border-radius:2px;
}
.mobile-menu-list .nav-chip:hover{background:rgba(255,255,255,.08);color:#fff}
.mobile-menu-list .nav-chip.active{background:var(--accent-soft);color:var(--ink)}
.mobile-menu-cta{display:flex;padding:0 20px 24px}
@media(max-width:1080px){
    .desktop-nav{display:none}
    .menu-toggle{display:inline-flex}
    .header-inner{height:72px}
    .site-header.scrolled .header-inner{height:68px}
}

/* 页脚 */
.site-footer{
    background:var(--dark);
    color:rgba(255,255,255,.72);
    padding:96px 0 32px;
    margin-top:0;
}
.cluster-word .footer-grid{
    display:grid;
    grid-template-columns:1.8fr 1fr 1.2fr;
    gap:64px;
    align-items:start;
}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:22px}
.footer-brand .brand-text{font-size:20px}
.footer-brand-column P{color:rgba(255,255,255,.58);font-size:15px;max-width:380px;margin-bottom:20px}
.footer-title{font-size:15px;font-weight:700;color:#fff;margin-bottom:18px;letter-spacing:.02em}
.footer-links li{margin-bottom:10px}
.footer-links a{color:rgba(255,255,255,.62);font-size:15px;transition:color .2s;position:relative;padding-left:9px}
.footer-links a::before{
    content:"";
    position:absolute;
    left:0;top:9px;
    width:3px;height:3px;
    border-radius:50%;
    background:var(--accent);
}
.footer-links a:hover{color:var(--accent-bright);padding-left:12px}
.footer-contact p{display:flex;gap:12px;margin-bottom:10px;font-size:15px;color:rgba(255,255,255,.62)}
.footer-contact span{flex-shrink:0;color:rgba(255,255,255,.4)}
.footer-bottom{
    margin-top:72px;
    padding-top:28px;
    border-top:1px solid rgba(255,255,255,.1);
    display:flex;
    justify-content:space-between;
    gap:24px;
    flex-wrap:wrap;
    color:rgba(255,255,255,.4);
    font-size:13px;
}
.footer-bottom .legal{color:rgba(255,255,255,.34)}
@media(max-width:960px){
    .footer-grid{grid-template-columns:1fr;gap:40px;}
    .site-footer{padding-top:72px}
    .footer-bottom{margin-top:48px}
}
/* cta 悬浮 */
.fab{
    position:fixed;
    right:28px;
    bottom:32px;
    z-index:90;
    width:52px;
    height:52px;
    border-radius:99px;
    background:#171B1E;
    color:#fff;
    display:flex;
    align-items:center;
    justify-content:center;
    box-shadow:0 10px 24px rgba(23,26,28,.26);
    border:1px solid rgba(255,255,255,.16);
    transition:background-color .25s,transform .25s,opacity .25s,box-shadow .25s;
    opacity:0;
    pointer-events:none;
}
.fab.visible{opacity:1;pointer-events:auto}
.fab:hover{background:var(--accent);transform:translateY(-3px)}
.fab svg{width:22px;height:22px;display:block}
@media(max-width:600px){
    .fab{width:48px;height:48px;right:18px;bottom:20px}
}

/* 公共区块标题 */
.sec-wrap{padding:110px 0}
@media(max-width:768px){.sec-wrap{padding:78px 0}}
.sec-head{margin-bottom:50px;max-width:900px}
.sec-label{
    display:inline-flex;
    align-items:center;
    font-size:13px;
    letter-spacing:.14em;
    color:var(--accent);
    font-weight:700;
    margin-bottom:12px;
}
.sec-title{
    font-size:clamp(26px,3.3vw,44px);
    font-weight:700;
    line-height:1.3;
    letter-spacing:-.01em;
    color:var(--ink);
    margin-bottom:14px;
}
.sec-desc{font-size:17px;color:var(--muted);max-width:860px}
@media(max-width:640px){.sec-desc{font-size:16px}}

/* 类别 banner */
.case-banner{
    position:relative;
    min-height:580px;
    display:flex;
    align-items:flex-end;
    background:var(--dark);
    color:#fff;
    margin-top:72px;
    overflow:hidden;
}
.case-banner::before{
    content:"";
    position:absolute;
    inset:0;
    background-image:url('/assets/images/backpic/back-2.webp');
    background-size:cover;
    background-position:center;
    filter:saturate(.7) contrast(.88) brightness(.6);
    transform:scale(1.02);
}
.case-banner::after{
    content:"";
    position:absolute;
    inset:0;
    background:linear-gradient(100deg,rgba(23,27,30,.97) 10%,rgba(23,27,30,.42) 48%,rgba(23,27,30,.1) 100%);
}
.banner-inner{
    position:relative;
    z-index:2;
    padding-top:100px;
    padding-bottom:72px;
    width:100%;
}
.breadcrumb{
    display:flex;
    flex-wrap:wrap;
    gap:8px;
    font-size:14px;
    color:rgba(255,255,255,.65);
    margin-bottom:36px;
}
.breadcrumb a{transition:color .2s}
.breadcrumb a:hover{color:var(--accent-bright)}
.breadcrumb .sep{opacity:.5}
.case-banner h1{
    font-size:clamp(36px,5.2vw,74px);
    font-weight:800;
    line-height:1.16;
    letter-spacing:-.02em;
    color:#fff;
    max-width:920px;
    font-weight:750;
}
.case-banner h1 .block{display:block}
.banner-desc{
    margin-top:28px;
    max-width:600px;
    font-size:17px;
    color:rgba(255,255,255,.82);
    line-height:1.9;
}
.banner-actions{display:flex;gap:14px;margin-top:38px;flex-wrap:wrap}
.banner-meta{
    display:flex;
    align-items:center;
    gap:18px;
    margin-top:48px;
    border-top:1px solid rgba(255,255,255,.18);
    padding-top:22px;
    color:rgba(255,255,255,.55);
    font-size:13px;
    letter-spacing:.06em;
}
.banner-meta span{display:inline-flex;align-items:center;gap:6px}
.banner-meta svg{width:14px;height:14px}
@media(max-width:960px){
    .case-banner{min-height:510px;margin-top:72px;align-items:flex-end}
}
@media(max-width:640px){
    .banner-inner{padding-top:60px;padding-bottom:48px}
}

/* 数据模块 */
.stats-grid{
    display:grid;
    grid-template-columns:repeat(4,1fr);
    gap:1px;
    background:var(--line);
    border:1px solid var(--line);
}
.stat-cell{
    background:var(--panel);
    padding:40px 28px;
    text-align:center;
    transition:background-color .2s;
}
.stat-cell:hover{background:var(--accent-soft)}
.stat-num{
    font-size:clamp(36px,3.4vw,58px);
    font-weight:800;
    line-height:1;
    color:var(--ink);
    letter-spacing:-.03em;
}
.stat-num sup{font-size:16px;color:var(--accent);font-weight:600;margin-left:2px}
.stat-label{margin-top:14px;font-size:14px;color:var(--muted)}
.stat-note{text-align:right;margin-top:14px;font-size:13px;color:var(--muted)}
@media(max-width:960px){.stats-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:560px){.stats-grid{grid-template-columns:1fr 1fr}.stat-cell{padding:26px 13px}}

/* 应用门类列表 */
.scene-row{
    display:grid;
    grid-template-columns:120px 1fr 1fr;
    align-items:start;
    gap:28px;
    padding:32px 18px;
    border-bottom:1px solid var(--line);
    transition:background-color .2s,transform .2s;
}
.scene-row:first-of-type{border-top:1px solid var(--line)}
.scene-row:hover{background:var(--panel);transform:translateX(4px)}
.scene-index{
    font-size:34px;
    font-weight:800;
    color:var(--accent);
    line-height:1;
    opacity:.8;
}
.scene-title{font-size:20px;font-weight:700;color:var(--ink);margin-bottom:6px}
.scene-sub{font-size:14px;color:var(--accent);letter-spacing:.12em}
.scene-desc{color:var(--muted);font-size:15px;line-height:1.8}
@media(max-width:800px){
    .scene-row{grid-template-columns:60px 1fr;gap:8px 18px}
    .scene-desc{grid-column:2 / -1;text-align:left}
}

/* 案例大图 */
.case-feature{
    position:relative;
    display:grid;
    grid-template-columns:1.2fr 1fr;
    min-height:480px;
    background:var(--dark);
    color:#fff;
}
.feature-visual{
    position:relative;
    background:url('/assets/images/coverpic/cover-1.webp') center/cover no-repeat;
    min-height:360px;
    overflow:hidden;
}
.feature-visual::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,transparent,rgba(23,27,30,.36))}
.feature-body{
    display:flex;
    flex-direction:column;
    justify-content:center;
    padding:56px 54px;
}
.feature-tag{
    align-self:flex-start;
    background:var(--accent-soft);
    color:var(--ink);
    font-size:12px;
    letter-spacing:.14em;
    padding:3px 14px;
    border-radius:99px;
    margin-bottom:20px;
    font-weight:600;
}
.feature-body h2{font-size:clamp(24px,2.6vw,38px);line-height:1.3;font-weight:700;margin-bottom:20px}
.feature-body p{color:rgba(255,255,255,.8);font-size:15px;line-height:1.9}
.feature-body .link-arrow{
    display:inline-flex;
    align-items:center;
    gap:8px;
    margin-top:30px;
    font-size:14px;
    color:var(--accent-bright);
    font-weight:600;
    align-self:flex-start;
    transition:gap .2s;
}
.feature-body .link-arrow:hover{gap:14px}
@media(max-width:900px){
    .case-feature{grid-template-columns:1fr}
    .feature-body{padding:40px 28px}
}

/* 案例时间列表 */
.archive-shell{
    border-left:1px solid var(--line);
    margin-left:10px;
    padding-left:42px;
}
.archive-item{
    position:relative;
    padding:0 0 50px 26px;
    border-bottom:1px solid var(--line);
}
.archive-item:last-child{border-bottom:none;padding-bottom:0}
.archive-item::before{
    content:"";
    position:absolute;
    left:-5px;
    top:8px;
    width:11px;
    height:11px;
    border-radius:50%;
    background:var(--accent);
    box-shadow:0 0 0 4px rgba(169,129,78,.15);
    transition:background-color .2s,transform .2s;
}
.archive-item:hover::before{background:var(--accent-bright);transform:scale(1.2)}
.archive-head{
    display:flex;
    flex-wrap:wrap;
    justify-content:space-between;
    gap:10px 18px;
    margin-bottom:14px;
}
.archive-id{font-size:16px;font-weight:800;color:var(--accent);letter-spacing:.06em}
.archive-date{font-size:14px;color:var(--muted);text-align:right}
.archive-detail{
    display:grid;
    grid-template-columns:110px 1fr;
    gap:10px 18px;
    margin:22px 0 18px;
}
.archive-detail .type{color:var(--muted)}
.archive-detail .label{font-size:14px;font-weight:600;color:var(--ink)}
.archive-detail .content{font-size:15px;color:var(--muted);line-height:1.8}
.archive-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
.chip-tag{
    display:inline-flex;
    align-items:center;
    padding:2px 12px;
    border-radius:99px;
    background:var(--accent-soft);
    color:#5f4a2a;
    font-size:13px;
    border:1px solid transparent;
}
.chip-line{
    display:inline-flex;
    align-items:center;
    padding:2px 13px;
    border-radius:99px;
    background:#fff;
    color:var(--muted);
    border:1px solid var(--line);
    font-size:12px;
}
.archive-thumb{
    margin-top:28px;
    border-radius:2px;
    overflow:hidden;
    border:1px solid var(--line);
    position:relative;
    aspect-ratio:16/7;
    background:#e8e0d3;
}
.archive-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.archive-item:hover .archive-thumb img{transform:scale(1.02)}
@media(max-width:640px){
    .archive-shell{margin-left:0;padding-left:22px}
    .archive-item{padding-left:14px}
    .archive-detail{grid-template-columns:1fr;gap:4px}
    .archive-date{text-align:left}
}

/* 流程 */
.process-wrap{
    background:var(--panel);
    border:1px solid var(--line);
    padding:34px 0 14px;
}
.process-grid{
    display:grid;
    grid-template-columns:repeat(4,1fr);
    gap:2px;
    background:var(--line);
}
.process-step{background:var(--panel);padding:32px 28px;min-height:210px;position:relative}
.process-num{display:block;font-size:42px;font-weight:800;color:transparent;-webkit-text-stroke:1px var(--accent);margin-bottom:22px;line-height:1}
.process-title{font-size:18px;font-weight:650;color:var(--ink);margin-bottom:10px}
.process-desc{font-size:14px;color:var(--muted)}
@media(max-width:960px){
    .process-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:560px){
    .process-grid{grid-template-columns:1fr}
    .process-step{padding:26px 22px}
}

/* 提醒条 */
.notice-bar{
    display:flex;
    flex-wrap:wrap;
    align-items:center;
    gap:18px;
    justify-content:space-between;
    background:var(--accent-soft);
    border:1px solid rgba(169,129,78,.2);
    padding:24px 30px;
    border-radius:2px;
    margin-top:22px;
}
.notice-icon{color:var(--accent);font-size:25px}
.notice-title{font-size:16px;font-weight:700;color:var(--ink);margin-bottom:4px}
.notice-desc{font-size:14px;color:var(--muted)}
.notice-link-text{flex-shrink:0;color:var(--accent);font-weight:600;font-size:14px}
.notice-link-text:hover{text-decoration:underline}
@media(max-width:700px){
    .notice-bar{padding:20px 22px}
}

/* FAQ */
.faq-layout{
    display:grid;
    grid-template-columns:.8fr 1.4fr;
    gap:64px;
    align-items:start;
}
.faq-item{
    background:var(--panel);
    border:1px solid var(--line);
    border-radius:2px;
    margin-bottom:10px;
    transition:box-shadow .25s ease,transform .25s ease;
}
.faq-item:hover{box-shadow:var(--shadow-hover)}
.faq-item summary{
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:18px;
    cursor:pointer;
    padding:20px 24px;
    font-size:16px;
    font-weight:600;
    color:var(--ink);
    list-style:none;
    transition:color .2s;
    border-radius:2px;
    min-height:64px;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
    content:"+";
    width:22px;
    height:22px;
    flex-shrink:0;
    display:inline-flex;
    align-items:center;
    justify-content:center;
    color:var(--accent);
    font-size:22px;
    font-weight:400;
    border:1px solid var(--line);
    border-radius:50%;
    transition:transform .25s,background-color .25s,color .25s;
}
.faq-item[open] summary::after{
    content:"−";
    transform:rotate(180deg);
    background:var(--accent);
    color:#fff;
    border-color:var(--accent);
}
.faq-answer{padding:0 24px 22px;font-size:15px;line-height:1.85;color:var(--muted)}
@media(max-width:1024px){
    .faq-layout{grid-template-columns:1fr;gap:30px}
}

/* CTA 收尾 */
.bottom-cta{
    background:var(--dark);
    color:#fff;
    text-align:center;
    padding:100px 20px 90px;
    position:relative;
    overflow:hidden;
}
.bottom-cta::before{
    content:"";
    position:absolute;
    top:0;left:0;width:100%;height:1px;
    background:linear-gradient(90deg,transparent,var(--accent),transparent);
}
.bottom-cta::after{
    content:"";
    position:absolute;
    inset:0;
    background:radial-gradient(circle at 80% 20%,rgba(169,129,78,.14),transparent 50%);
}
.cta-content{position:relative;z-index:2}
.cta-title{font-size:clamp(28px,4vw,54px);line-height:1.3;font-weight:700;margin-bottom:20px;margin-top:10px}
.cta-sub{max-width:620px;margin:0 auto 34px;color:rgba(255,255,255,.7)}
.cta-actions{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}

/* 其它视觉 */
.section-divider{border-top:1px solid var(--line)}
.split-head-row{
    display:flex;
    justify-content:space-between;
    align-items:flex-end;
    gap:20px;
    margin-bottom:36px;
}
.split-head-row .more-link{
    display:inline-flex;
    align-items:center;
    gap:8px;
    font-size:14px;
    color:var(--accent);
    font-weight:600;
    flex-shrink:0;
    transition:gap .2s;
}
.split-head-row .more-link:hover{gap:13px}
@media(max-width:680px){
    .split-head-row{flex-direction:column;align-items:flex-start;gap:8px}
}

@media (prefers-reduced-motion: reduce){
    *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
    .btn::after{display:none}
}

/* roulang page: category2 */
:root {
  --color-bg: #F4F1EA;
  --color-surface: #FFFFFF;
  --color-ink: #191D20;
  --color-body: #33383C;
  --color-muted: #6F7478;
  --color-line: #DDD8CE;
  --color-accent: #A9814E;
  --color-accent-bright: #C79E64;
  --color-accent-bg: #F0E7D8;
  --color-danger: #A34B36;
  --color-dark: #171B1E;
  --radius: 2px;
  --radius-pill: 99px;
  --shadow: 0 1px 2px rgba(23, 26, 28, 0.06);
  --shadow-hover: 0 10px 24px rgba(23, 26, 28, 0.08);
  --transition: 0.25s ease;
  --container: 1280px;
  --side-pad: 32px;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 120px;
}

body {
  background: var(--color-bg);
  color: var(--color-body);
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", "Helvetica Neue", sans-serif;
  font-size: 17px;
  line-height: 1.85;
  -webkit-font-smoothing: antialiased;
}

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

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

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

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

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

.container {
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--side-pad);
}

/* 通用按钮 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 10px 22px;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 15px;
  line-height: 1.4;
  letter-spacing: 0.02em;
  border: 1px solid transparent;
  transition: background-color var(--transition), color var(--transition), border-color var(--transition), transform var(--transition), box-shadow var(--transition);
}

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

.btn-primary:hover {
  background: var(--color-accent);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: var(--shadow-hover);
}

.btn-primary:active {
  transform: translateY(0.5px);
}

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

.btn-light:hover {
  background: var(--color-accent);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: var(--shadow-hover);
}

.btn-outline {
  border-color: rgba(255, 255, 255, 0.5);
  color: #fff;
  background: transparent;
}

.btn-outline:hover {
  border-color: var(--color-accent-bright);
  color: var(--color-accent-bright);
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: 88px;
  background: var(--color-dark);
  color: #fff;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  transition: height var(--transition), box-shadow var(--transition), border-color var(--transition);
}

.site-header.scrolled {
  height: 68px;
  box-shadow: 0 10px 24px rgba(23, 26, 28, 0.14);
  border-bottom-color: rgba(169, 129, 78, 0.35);
}

.site-header .container {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}

.brand {
  display: inline-flex;
  align-items: center;
  flex-shrink: 0;
  gap: 12px;
  color: #fff;
}

.brand-text {
  font-size: 21px;
  font-weight: 700;
  letter-spacing: 0.02em;
  white-space: nowrap;
}

.brand-divider {
  width: 1px;
  height: 20px;
  background: rgba(255, 255, 255, 0.2);
}

.brand-tag {
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--color-accent-bright);
  white-space: nowrap;
}

.desktop-nav {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  gap: 6px;
}

.nav-chip {
  display: inline-flex;
  align-items: center;
  min-height: 38px;
  padding: 7px 17px;
  border-radius: var(--radius-pill);
  background: rgba(255, 255, 255, 0.04);
  color: rgba(255, 255, 255, 0.7);
  font-size: 15px;
  font-weight: 500;
  white-space: nowrap;
  transition: background-color var(--transition), color var(--transition);
}

.nav-chip:hover {
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
}

.nav-chip.active {
  background: var(--color-accent-bg);
  color: var(--color-dark);
}

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

.header-cta .btn {
  min-height: 42px;
  padding: 8px 18px;
  font-size: 14px;
}

.menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 2px;
}

.menu-toggle svg {
  width: 20px;
  height: 20px;
}

.mobile-menu {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: var(--color-dark);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 18px 20px 26px;
}

.mobile-menu.open {
  display: block;
}

.mobile-menu-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 18px;
}

.mobile-menu-list .nav-chip {
  display: flex;
  width: 100%;
  min-height: 50px;
  border-radius: var(--radius);
  padding: 10px 16px;
  font-size: 16px;
}

.mobile-menu-cta {
  display: flex;
}

/* Hero 区块 */
.support-hero {
  position: relative;
  background: var(--color-dark);
  color: #fff;
  overflow: hidden;
}

.support-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: url('/assets/images/backpic/back-2.webp');
  background-size: cover;
  background-position: center;
  opacity: 0.18;
  z-index: 0;
}

.support-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(112deg, rgba(23, 27, 30, 0.96) 18%, rgba(23, 27, 30, 0.72) 58%, rgba(23, 27, 30, 0.28) 100%);
  z-index: 1;
}

.support-hero .container {
  position: relative;
  z-index: 2;
  padding-top: 92px;
  padding-bottom: 96px;
}

.hero-layout {
  display: grid;
  grid-template-columns: 1.35fr 1fr;
  gap: 64px;
  align-items: center;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  letter-spacing: 0.16em;
  font-weight: 600;
  color: var(--color-accent-bright);
  text-transform: uppercase;
}

.eyebrow::before {
  content: "";
  width: 30px;
  height: 1px;
  background: var(--color-accent-bright);
}

.hero-heading {
  margin-top: 18px;
  font-size: clamp(44px, 6vw, 84px);
  font-weight: 800;
  line-height: 1.18;
  letter-spacing: -0.01em;
  color: #fff;
}

.hero-lead {
  margin-top: 24px;
  max-width: 620px;
  font-size: 18px;
  line-height: 1.9;
  color: rgba(255, 255, 255, 0.82);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 36px;
}

.hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 32px;
}

.hero-tags span {
  display: inline-flex;
  align-items: center;
  min-height: 30px;
  padding: 4px 14px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: var(--radius-pill);
  color: rgba(255, 255, 255, 0.68);
  font-size: 13px;
  letter-spacing: 0.04em;
}

.hero-support-card {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: var(--radius);
  padding: 28px 26px;
}

.support-card-title {
  padding-bottom: 18px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  color: #fff;
  font-size: 16px;
  font-weight: 650;
}

.hero-data-list {
  display: flex;
  flex-direction: column;
}

.hero-data-list > div {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 20px;
  padding: 16px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.hero-data-list > div:last-child {
  border-bottom: none;
}

.hero-data-label {
  color: rgba(255, 255, 255, 0.6);
  font-size: 14px;
  flex-shrink: 0;
}

.hero-data-value {
  color: #fff;
  font-size: 15px;
  font-weight: 550;
  text-align: right;
}

/* 页面区块通用 */
.section {
  padding-top: clamp(84px, 11vw, 148px);
  padding-bottom: clamp(84px, 11vw, 148px);
}

.section-surface {
  background: var(--color-surface);
  border-top: 1px solid var(--color-line);
  border-bottom: 1px solid var(--color-line);
}

.section-head {
  max-width: 780px;
}

.section-title {
  margin-top: 10px;
  font-size: clamp(28px, 3.4vw, 48px);
  font-weight: 700;
  line-height: 1.3;
  color: var(--color-ink);
  letter-spacing: -0.01em;
}

.section-desc {
  margin-top: 18px;
  color: var(--color-muted);
  font-size: 16px;
  max-width: 720px;
}

/* 常见技术问题编号列表 */
.scenario-list {
  margin-top: 64px;
  border-top: 1px solid var(--color-line);
}

.scenario-row {
  display: grid;
  grid-template-columns: 130px 1fr 140px;
  gap: 24px;
  align-items: start;
  padding: 38px 16px 38px 0;
  border-bottom: 1px solid var(--color-line);
  transition: padding-left 0.25s ease, background-color 0.25s ease;
}

.scenario-row:hover {
  padding-left: 14px;
  background: rgba(169, 129, 78, 0.05);
}

.scenario-row:hover .scenario-num {
  color: var(--color-accent);
}

.scenario-num {
  font-size: 17px;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--color-muted);
  transition: color var(--transition);
}

.scenario-body h3 {
  font-size: clamp(19px, 1.8vw, 26px);
  font-weight: 650;
  color: var(--color-ink);
  line-height: 1.5;
}

.scenario-body p {
  margin-top: 10px;
  color: var(--color-body);
  font-size: 16px;
  max-width: 760px;
}

.scenario-ref {
  color: var(--color-muted);
  font-size: 13px;
  text-align: right;
  line-height: 1.8;
}

/* 流程区块 */
.process-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 30px;
  margin-top: 68px;
  border-top: 1px solid var(--color-line);
}

.process-item {
  position: relative;
  padding-top: 30px;
}

.process-item::before {
  content: "";
  position: absolute;
  top: -6px;
  left: 0;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--color-accent);
  border: 3px solid var(--color-surface);
  box-shadow: 0 0 0 1px var(--color-accent);
}

.process-num {
  font-size: 13px;
  letter-spacing: 0.14em;
  color: var(--color-accent);
  font-weight: 700;
}

.process-item h3 {
  margin-top: 14px;
  font-size: 20px;
  color: var(--color-ink);
  font-weight: 650;
}

.process-item p {
  margin-top: 8px;
  color: var(--color-muted);
  font-size: 15px;
}

/* 图文配合区 */
.guide-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 72px;
  align-items: center;
}

.media-frame {
  overflow: hidden;
  background: var(--color-line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  aspect-ratio: 4 / 3;
}

.media-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.media-caption {
  margin-top: 14px;
  font-size: 13px;
  color: var(--color-muted);
  text-align: right;
}

.guide-content .section-title {
  margin-top: 6px;
}

.check-list {
  margin-top: 26px;
  border-top: 1px solid var(--color-line);
}

.check-list li {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  padding: 16px 0;
  list-style: none;
  border-bottom: 1px solid var(--color-line);
  color: var(--color-body);
  font-size: 16px;
}

.check-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  width: 22px;
  height: 22px;
  margin-top: 5px;
  border-radius: 50%;
  background: var(--color-accent-bg);
  color: var(--color-accent);
  font-size: 12px;
  font-weight: 700;
}

/* 技术表单区块 */
.ticket-wrapper {
  background: var(--color-accent-bg);
  border-top: 1px solid #DFD3C0;
  border-bottom: 1px solid #DFD3C0;
}

.ticket-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 76px;
  align-items: start;
}

.ticket-copy-list {
  margin-top: 28px;
  display: grid;
  gap: 18px;
}

.ticket-copy-list li {
  display: flex;
  gap: 12px;
  list-style: none;
  color: var(--color-body);
}

.ticket-copy-list li::before {
  content: "";
  flex-shrink: 0;
  width: 14px;
  height: 1px;
  background: var(--color-accent);
  margin-top: 14px;
}

.tech-form {
  background: var(--color-surface);
  border: 1px solid #DFD3C0;
  border-radius: var(--radius);
  padding: 34px;
  box-shadow: var(--shadow);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.field {
  margin-bottom: 18px;
}

.field label {
  display: block;
  font-size: 14px;
  color: var(--color-muted);
  margin-bottom: 7px;
  font-weight: 550;
}

.field .req {
  color: var(--color-danger);
}

.field input,
.field select,
.field textarea {
  display: block;
  width: 100%;
  padding: 11px 13px;
  background: #fff;
  border: 1px solid #C7C0B4;
  border-radius: 2px;
  color: var(--color-ink);
  line-height: 1.6;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.field input:focus,
.field select:focus,
.field textarea:focus {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(169, 129, 78, 0.12);
  outline: none;
}

.field select {
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%23191D20' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 13px center;
  cursor: pointer;
}

.field textarea {
  min-height: 130px;
  resize: vertical;
}

.form-footer {
  margin-top: 10px;
}

.form-message {
  padding: 14px 16px;
  border-radius: 2px;
  font-size: 15px;
  line-height: 1.7;
}

.form-message.success {
  background: #E9F0E6;
  border: 1px solid #C4D4BD;
  color: #3E5E38;
}

.form-message.fail {
  background: #F5E9E4;
  border: 1px solid #E5C3B7;
  color: var(--color-danger);
}

.ticket-note {
  margin-top: 16px;
  font-size: 13px;
  color: var(--color-muted);
}

/* FAQ 区块 */
.faq-layout {
  display: grid;
  grid-template-columns: 0.7fr 1.3fr;
  gap: 76px;
  align-items: start;
}

.faq-sticky {
  position: sticky;
  top: 120px;
}

.faq-intro {
  margin-top: 18px;
  font-size: 16px;
  color: var(--color-muted);
  max-width: 380px;
}

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

.faq-item {
  border-bottom: 1px solid var(--color-line);
}

.faq-toggle {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  width: 100%;
  padding: 24px 0;
  color: var(--color-ink);
  font-size: 18px;
  line-height: 1.6;
  font-weight: 600;
  text-align: left;
  transition: color var(--transition);
}

.faq-toggle:hover {
  color: var(--color-accent);
}

.faq-toggle:hover .faq-icon::before,
.faq-toggle:hover .faq-icon::after {
  background: var(--color-accent);
}

.faq-icon {
  position: relative;
  flex-shrink: 0;
  width: 14px;
  height: 14px;
}

.faq-icon::before,
.faq-icon::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--color-muted);
  transform: translateY(-50%);
  transition: background-color var(--transition), transform 0.28s ease;
}

.faq-icon::after {
  transform: translateY(-50%) rotate(90deg);
}

.faq-item.open .faq-icon::after {
  transform: translateY(-50%) rotate(0deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease;
}

.faq-answer-inner {
  padding: 0 38px 26px 0;
  color: var(--color-muted);
  line-height: 1.85;
  max-width: 760px;
}

/* 底部 CTA */
.cta-band {
  background: var(--color-dark);
  color: #fff;
  padding: 88px 0 92px;
  position: relative;
  overflow: hidden;
}

.cta-band::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: url('/assets/images/backpic/back-3.webp');
  background-size: cover;
  background-position: center;
  opacity: 0.12;
}

.cta-inner {
  position: relative;
  max-width: 820px;
  margin-inline: auto;
  text-align: center;
}

.cta-inner h2 {
  color: #fff;
  font-size: clamp(28px, 3.2vw, 46px);
  line-height: 1.3;
  font-weight: 750;
}

.cta-inner p {
  margin: 20px auto 0;
  color: rgba(255, 255, 255, 0.72);
  font-size: 16px;
  max-width: 600px;
}

.cta-actions {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 34px;
}

/* 页脚 */
.site-footer {
  background: var(--color-dark);
  color: rgba(255, 255, 255, 0.7);
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  padding-top: 68px;
  padding-bottom: 78px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 0.8fr 1.2fr;
  gap: 60px;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: #fff;
}

.footer-brand .brand-text {
  font-size: 21px;
}

.footer-brand-column > p {
  margin-top: 18px;
  max-width: 440px;
  color: rgba(255, 255, 255, 0.6);
  font-size: 15px;
  line-height: 1.9;
}

.footer-title {
  margin-bottom: 16px;
  color: #fff;
  font-size: 16px;
  font-weight: 600;
}

.footer-links {
  list-style: none;
  display: grid;
  gap: 12px;
}

.footer-links a {
  color: rgba(255, 255, 255, 0.68);
  font-size: 15px;
  transition: color var(--transition), padding-left var(--transition);
}

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

.footer-contact p {
  display: grid;
  gap: 2px;
  margin-bottom: 14px;
  color: rgba(255, 255, 255, 0.65);
  font-size: 15px;
}

.footer-contact span {
  color: rgba(255, 255, 255, 0.42);
  font-size: 13px;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px 24px;
  margin-top: 56px;
  padding-top: 22px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  font-size: 13px;
  color: rgba(255, 255, 255, 0.4);
}

/* 浮动 CTA */
.floating-cta {
  position: fixed;
  right: 28px;
  bottom: 28px;
  z-index: 90;
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: var(--color-dark);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 10px 24px rgba(23, 26, 28, 0.2);
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  transition: opacity 0.3s ease, transform 0.3s ease, background-color var(--transition);
}

body.show-floating .floating-cta {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.floating-cta:hover {
  background: var(--color-accent);
  color: #fff;
  transform: translateY(-2px);
}

.floating-cta svg {
  width: 22px;
  height: 22px;
}

/* 响应式 */
@media (max-width: 1180px) {
  .brand-tag {
    display: none;
  }

  .desktop-nav {
    gap: 3px;
  }

  .nav-chip {
    padding: 7px 13px;
  }
}

@media (max-width: 1024px) {
  .row {
    gap: 16px;
  }

  .hero-layout {
    grid-template-columns: 1.1fr 0.9fr;
    gap: 40px;
  }

  .guide-grid {
    gap: 40px;
  }

  .ticket-grid {
    gap: 48px;
  }
}

@media (max-width: 960px) {
  .desktop-nav,
  .header-cta .header-cta-btn {
    display: none;
  }

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

  .site-header .container {
    gap: 12px;
  }

  .hero-layout {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .hero-support-card {
    max-width: 620px;
  }

  .process-strip {
    grid-template-columns: 1fr 1fr;
    gap: 38px 30px;
  }

  .guide-grid {
    grid-template-columns: 1fr;
    gap: 30px;
  }

  .ticket-grid {
    grid-template-columns: 1fr;
    gap: 42px;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 44px 32px;
  }

  .footer-brand-column {
    grid-column: 1 / -1;
  }

  .faq-layout {
    grid-template-columns: 1fr;
    gap: 30px;
  }

  .faq-sticky {
    position: static;
  }
}

@media (max-width: 720px) {
  .section {
    padding-top: 72px;
    padding-bottom: 72px;
  }

  .scenario-row {
    grid-template-columns: 1fr;
    gap: 12px;
    padding: 30px 6px 30px 0;
  }

  .scenario-ref {
    text-align: left;
  }

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

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

  .tech-form {
    padding: 28px 20px;
  }

  .ticket-copy-list {
    margin-top: 20px;
  }

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

  .footer-bottom {
    flex-direction: column;
  }
}

@media (max-width: 520px) {
  .container {
    --side-pad: 20px;
  }

  .site-header {
    height: 72px;
  }

  .site-header.scrolled {
    height: 64px;
  }

  .brand-text {
    font-size: 18px;
  }

  .brand-divider {
    display: none;
  }

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

  .footer-brand .brand-text {
    font-size: 18px;
  }

  .floating-cta {
    right: 18px;
    bottom: 18px;
    width: 50px;
    height: 50px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation: none !important;
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }
}

/* roulang page: category4 */
:root {
  --bg: #F4F1EA;
  --surface: #FFFFFF;
  --ink: #191D20;
  --content: #33383C;
  --muted: #6F7478;
  --line: #DDD8CE;
  --hairline: rgba(255, 255, 255, 0.14);
  --brand: #A9814E;
  --brand-bright: #C79E64;
  --brand-soft: #F0E7D8;
  --danger: #A34B36;
  --dark: #171B1E;
  --dark-soft: #21272B;
  --radius: 2px;
  --shadow-sm: 0 1px 2px rgba(23, 26, 28, 0.06);
  --shadow-hover: 0 10px 24px rgba(23, 26, 28, 0.08);
  --font: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", "Source Han Sans SC", system-ui, -apple-system, sans-serif;
  --mono: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 120px;
}

body {
  font-family: var(--font);
  font-size: 17px;
  line-height: 1.85;
  background-color: var(--bg);
  color: var(--content);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body.modal-open {
  overflow: hidden;
}

::selection {
  background: var(--brand);
  color: #fff;
}

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

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

ul,
ol {
  list-style: none;
}

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

button {
  cursor: pointer;
}

.container {
  width: 100%;
  max-width: 1280px;
  margin-inline: auto;
  padding-inline: 32px;
}

.container.narrow {
  max-width: 860px;
}

.main {
  overflow: clip;
}

.eyebrow {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  line-height: 1.6;
  letter-spacing: 0.16em;
  color: var(--brand);
  font-weight: 700;
}

.eyebrow::before {
  content: "";
  width: 22px;
  height: 1px;
  background: var(--brand);
  flex: none;
}

section {
  position: relative;
}

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  border: 1px solid transparent;
  border-radius: 2px;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.2;
  padding: 13px 26px;
  min-height: 48px;
  background: transparent;
  color: var(--ink);
  text-align: center;
  transition: background 0.25s ease, border-color 0.25s ease, color 0.25s ease, transform 0.25s ease, box-shadow 0.25s ease;
}

.btn svg {
  width: 18px;
  height: 18px;
  flex: none;
}

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

.btn-primary:hover {
  background: var(--brand);
  border-color: var(--brand);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 10px 22px rgba(23, 26, 28, 0.14);
}

.btn-primary:active {
  transform: translateY(0.5px);
  box-shadow: none;
}

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

.btn-light:hover {
  background: var(--brand);
  border-color: var(--brand);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 10px 22px rgba(0, 0, 0, 0.18);
}

.btn-line-dark {
  border-color: #C7C0B4;
  color: var(--content);
  background: transparent;
}

.btn-line-dark:hover {
  border-color: var(--brand);
  color: var(--brand);
  transform: translateY(-2px);
}

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

.btn-line-light:hover {
  border-color: var(--brand-bright);
  color: var(--brand-bright);
  transform: translateY(-2px);
  background: rgba(255, 255, 255, 0.04);
}

.tag {
  display: inline-flex;
  align-items: center;
  background: var(--brand-soft);
  color: #5F4627;
  font-size: 13px;
  font-weight: 600;
  padding: 3px 13px;
  border-radius: 99px;
  line-height: 1.6;
}

.label-note {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: transparent;
  border: 1px solid var(--line);
  border-radius: 99px;
  padding: 5px 15px;
  font-size: 13px;
  color: var(--muted);
}

/* Header */
.site-header {
  --headerH: 88px;
  position: fixed;
  inset: 0 0 auto;
  z-index: 100;
  background: rgba(23, 27, 30, 0.96);
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s ease, background 0.3s ease;
}

.site-header.is-scrolled {
  background: rgba(22, 25, 28, 0.98);
  border-bottom-color: rgba(255, 255, 255, 0.08);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 22px;
  height: var(--headerH);
  transition: height 0.3s ease;
}

.site-header.is-scrolled .header-inner {
  height: 68px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
  flex: none;
}

.brand-text {
  color: #fff;
  font-size: 21px;
  font-weight: 700;
  letter-spacing: 0.02em;
  white-space: nowrap;
}

.brand-divider {
  width: 1px;
  height: 20px;
  background: rgba(255, 255, 255, 0.28);
}

.brand-tag {
  font-size: 11px;
  letter-spacing: 0.16em;
  color: rgba(255, 255, 255, 0.55);
  font-weight: 600;
  white-space: nowrap;
}

.desktop-nav {
  display: flex;
  align-items: center;
  gap: 6px;
}

.nav-chip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid transparent;
  border-radius: 99px;
  padding: 9px 17px;
  color: #F4F0E8;
  font-size: 14px;
  line-height: 1.35;
  font-weight: 600;
  background: transparent;
  transition: background 0.22s ease, border-color 0.22s ease, color 0.22s ease, transform 0.22s ease;
}

.nav-chip.active {
  background: var(--brand-soft);
  color: var(--ink);
}

.nav-chip:not(.active):hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.1);
  color: #fff;
  transform: translateY(-1px);
}

.header-cta {
  display: flex;
  align-items: center;
  gap: 12px;
  flex: none;
}

.header-cta-btn {
  padding: 10px 20px;
  min-height: 42px;
  font-size: 14px;
}

.menu-toggle {
  width: 44px;
  height: 44px;
  display: none;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: 2px;
  color: #fff;
  transition: background 0.2s, border-color 0.2s;
}

.menu-toggle:hover {
  background: rgba(255, 255, 255, 0.1);
}

.menu-toggle svg {
  width: 22px;
  height: 22px;
}

.mobile-menu {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  position: fixed;
  top: var(--headerH);
  right: 0;
  left: 0;
  bottom: 0;
  background: rgba(20, 23, 26, 0.99);
  padding: 32px 24px 34px;
  visibility: hidden;
  opacity: 0;
  transform: translateY(-10px);
  pointer-events: none;
  transition: opacity 0.25s ease, transform 0.25s ease, visibility 0.25s;
  overflow-y: auto;
}

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

.mobile-menu-list {
  display: grid;
  gap: 10px;
}

.mobile-menu-list .nav-chip {
  display: flex;
  width: 100%;
  justify-content: flex-start;
  border-radius: 2px;
  font-size: 20px;
  padding: 17px 20px;
  background: rgba(255, 255, 255, 0.05);
  color: rgba(255, 255, 255, 0.85);
}

.mobile-menu-list .nav-chip.active {
  background: var(--brand-soft);
  color: var(--ink);
}

.mobile-menu-cta {
  display: flex;
  gap: 12px;
  margin-top: 30px;
}

.mobile-menu-cta a {
  padding: 14px 20px;
  min-height: 50px;
}

/* Page Hero */
.page-hero {
  padding: 200px 0 100px;
  background:
    linear-gradient(115deg, rgba(244, 241, 234, 0.97) 0%, rgba(244, 241, 234, 0.9) 48%, rgba(244, 241, 234, 0.76) 100%),
    url("/assets/images/backpic/back-1.png") center / cover no-repeat;
  border-bottom: 1px solid var(--line);
}

.page-hero-inner {
  max-width: 860px;
}

.page-hero .eyebrow {
  color: var(--brand);
}

.page-hero h1 {
  margin-top: 22px;
  font-size: clamp(40px, 5.4vw, 68px);
  line-height: 1.18;
  letter-spacing: -0.01em;
  color: var(--ink);
  font-weight: 800;
}

.hero-brand-stamp {
  display: block;
  margin-bottom: 8px;
  font-size: 0.38em;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--brand);
  line-height: 1.4;
  white-space: nowrap;
}

.hero-title-main {
  display: block;
}

.hero-desc {
  margin-top: 26px;
  max-width: 34em;
  font-size: 18px;
  line-height: 1.9;
  color: #52565A;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 34px;
}

.hero-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
  color: var(--muted);
  font-size: 14px;
}

.hero-meta span {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.hero-meta span::before {
  content: "";
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--brand-bright);
}

/* Notice Intro */
.notice-intro {
  padding: 110px 0 70px;
}

.intro-grid {
  display: grid;
  grid-template-columns: 0.88fr 1.12fr;
  gap: 78px;
  align-items: center;
}

.intro-visual {
  position: relative;
}

.img-frame {
  border-radius: 2px;
  overflow: hidden;
  line-height: 0;
  box-shadow: var(--shadow-sm);
}

.img-frame img {
  width: 100%;
  height: auto;
  object-fit: cover;
}

.intro-body .eyebrow {
  margin-bottom: 16px;
}

.intro-body h2,
.section-head h2,
.faq-lead h2 {
  font-size: clamp(28px, 3.4vw, 48px);
  line-height: 1.3;
  letter-spacing: -0.01em;
  color: var(--ink);
  font-weight: 700;
}

.intro-para {
  margin-top: 22px;
  color: #555A5E;
}

.plain-list {
  display: grid;
  gap: 4px;
  margin-top: 30px;
}

.plain-list li {
  display: grid;
  grid-template-columns: 28px 1fr;
  gap: 12px;
  align-items: baseline;
  border-bottom: 1px solid var(--line);
  padding: 15px 0;
  color: #3D4347;
}

.plain-list li:last-child {
  border-bottom-color: transparent;
}

.plain-list .list-num {
  color: var(--brand);
  font-weight: 700;
  font-size: 15px;
  letter-spacing: 0.04em;
}

.plain-list strong {
  display: block;
  color: var(--ink);
  font-weight: 650;
}

.plain-list small {
  color: var(--muted);
  font-size: 14px;
}

/* Notice Feed */
.notice-feed {
  padding: 86px 0 120px;
  background: var(--surface);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.section-head {
  margin-bottom: 42px;
}

.section-head .eyebrow {
  margin-bottom: 12px;
}

.section-head p {
  margin-top: 14px;
  max-width: 38em;
  color: var(--muted);
}

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

.notice-row {
  display: grid;
  grid-template-columns: 130px 1fr;
  gap: 26px;
  padding: 44px 4px;
  border-bottom: 1px solid var(--line);
  transition: background 0.25s ease, padding 0.25s ease;
}

.notice-row:hover {
  background: rgba(244, 241, 234, 0.55);
  padding-left: 12px;
  padding-right: 4px;
}

.notice-date {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 2px;
  padding-top: 5px;
}

.notice-date .date-day {
  font-size: 30px;
  line-height: 1.1;
  font-weight: 700;
  color: var(--ink);
  letter-spacing: -0.02em;
}

.notice-date .date-ym {
  font-size: 14px;
  color: var(--muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.notice-main .tag {
  margin-bottom: 12px;
}

.notice-main h3 {
  font-size: 24px;
  line-height: 1.5;
  font-weight: 650;
  color: var(--ink);
}

.notice-main h3 a {
  transition: color 0.2s ease;
  background-image: linear-gradient(currentColor, currentColor);
  background-repeat: no-repeat;
  background-position: 0 100%;
  background-size: 0% 1px;
  transition: background-size 0.3s ease, color 0.25s ease;
}

.notice-row:hover .notice-main h3 a,
.notice-main h3 a:hover {
  color: var(--brand);
  background-size: 100% 1px;
}

.notice-main .notice-summary {
  margin-top: 12px;
  max-width: 40em;
  color: #595E62;
}

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  margin-top: 16px;
  font-size: 15px;
  font-weight: 600;
  color: var(--ink);
  border-bottom: 1px solid rgba(25, 29, 32, 0.2);
  padding-bottom: 2px;
  transition: border-color 0.2s ease, color 0.2s ease;
}

.text-link .arrow {
  display: inline-block;
  transition: transform 0.25s ease;
}

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

.text-link:hover .arrow {
  transform: translateX(3px);
}

.notice-highlight {
  display: flex;
  align-items: flex-start;
  gap: 18px;
  margin-top: 52px;
  padding: 26px 28px;
  background: var(--brand-soft);
  border: 1px solid rgba(169, 129, 78, 0.32);
  border-radius: 2px;
}

.highlight-icon {
  flex: none;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: var(--brand);
  color: #fff;
  font-weight: 800;
  font-size: 18px;
  line-height: 1;
  transform: translateY(4px);
}

.notice-highlight h3 {
  font-size: 18px;
  font-weight: 650;
  color: #3E3425;
  margin-bottom: 6px;
}

.notice-highlight p {
  color: #6A5A43;
  font-size: 15px;
  line-height: 1.8;
}

/* FAQ */
.faq-section {
  padding: 118px 0;
}

.faq-grid {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 70px;
  align-items: start;
}

.faq-lead {
  position: sticky;
  top: 140px;
}

.faq-lead .eyebrow {
  margin-bottom: 16px;
}

.faq-lead .faq-note {
  margin-top: 22px;
  color: var(--muted);
  max-width: 24em;
}

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

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

.faq-question {
  display: grid;
  grid-template-columns: 46px 1fr 30px;
  gap: 18px;
  align-items: center;
  width: 100%;
  padding: 26px 4px;
  text-align: left;
  background: transparent;
  border: 0;
  color: var(--ink);
  font-size: 19px;
  font-weight: 650;
  line-height: 1.5;
  transition: color 0.2s ease;
}

.faq-question:hover {
  color: var(--brand);
}

.faq-num {
  font-size: 14px;
  color: var(--brand);
  font-weight: 700;
  letter-spacing: 0.04em;
}

.faq-icon {
  position: relative;
  width: 16px;
  height: 16px;
  justify-self: end;
}

.faq-icon::before,
.faq-icon::after {
  content: "";
  position: absolute;
  background: currentColor;
  transition: transform 0.3s ease, opacity 0.3s ease;
}

.faq-icon::before {
  left: 0;
  right: 0;
  top: 7px;
  height: 2px;
}

.faq-icon::after {
  left: 7px;
  top: 0;
  bottom: 0;
  width: 2px;
}

.faq-item.active .faq-icon::after {
  transform: rotate(90deg);
  opacity: 0;
}

.faq-answer-wrap {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 0.35s ease;
}

.faq-item.active .faq-answer-wrap {
  grid-template-rows: 1fr;
}

.faq-answer-inner {
  overflow: hidden;
}

.faq-answer {
  padding: 2px 40px 28px 64px;
  color: #5C6165;
  font-size: 16px;
  line-height: 1.9;
}

.faq-answer p + p {
  margin-top: 12px;
}

/* CTA */
.cta-section {
  background: var(--dark);
  padding: 112px 0 118px;
  color: rgba(255, 255, 255, 0.8);
}

.cta-inner {
  text-align: center;
  max-width: 720px;
  margin-inline: auto;
}

.cta-section .eyebrow {
  justify-content: center;
  color: var(--brand-bright);
}

.cta-section .eyebrow::before {
  background: var(--brand-bright);
}

.cta-inner h2 {
  margin-top: 18px;
  font-size: clamp(28px, 3.2vw, 44px);
  line-height: 1.35;
  color: #fff;
  font-weight: 700;
}

.cta-inner p {
  margin-top: 20px;
  font-size: 17px;
  line-height: 1.9;
}

.cta-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  justify-content: center;
  margin-top: 34px;
}

.cta-note {
  margin-top: 24px;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.45);
}

/* Footer */
.site-footer {
  background: #14171A;
  color: rgba(255, 255, 255, 0.68);
  padding: 76px 0 48px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 0.7fr 1.1fr;
  gap: 56px;
}

.footer-brand-column .footer-brand {
  display: flex;
  align-items: center;
  margin-bottom: 18px;
}

.footer-brand .brand-text {
  color: #fff;
  font-size: 20px;
  font-weight: 700;
  white-space: nowrap;
}

.footer-brand-column p {
  max-width: 27em;
  font-size: 15px;
  line-height: 1.9;
  color: rgba(255, 255, 255, 0.55);
}

.footer-title {
  color: #fff;
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 16px;
  letter-spacing: 0.04em;
}

.footer-links {
  display: grid;
  gap: 10px;
}

.footer-links a {
  color: rgba(255, 255, 255, 0.62);
  font-size: 15px;
  transition: color 0.2s ease, padding-left 0.2s ease;
}

.footer-links a:hover {
  color: #fff;
  padding-left: 4px;
}

.footer-contact p {
  display: flex;
  flex-direction: column;
  gap: 2px;
  margin-bottom: 22px;
  color: rgba(255, 255, 255, 0.6);
  font-size: 15px;
}

.footer-contact p:last-child {
  margin-bottom: 0;
}

.footer-contact span {
  color: rgba(255, 255, 255, 0.3);
  font-size: 13px;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  margin-top: 56px;
  padding-top: 26px;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 10px;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.35);
}

.footer-bottom .legal {
  color: rgba(255, 255, 255, 0.25);
}

/* Float CTA */
.float-cta {
  position: fixed;
  right: 32px;
  bottom: 48px;
  z-index: 80;
  width: 54px;
  height: 54px;
  border-radius: 99px;
  display: grid;
  place-items: center;
  background: var(--dark);
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: #fff;
  box-shadow: 0 8px 22px rgba(23, 26, 28, 0.18);
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: opacity 0.25s ease, visibility 0.25s ease, transform 0.25s ease, background 0.25s ease;
}

.float-cta.is-visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.float-cta:hover {
  background: var(--brand);
  border-color: var(--brand);
  transform: translateY(-2px);
}

.float-cta svg {
  width: 22px;
  height: 22px;
}

/* Responsive */
@media (max-width: 1100px) {
  .header-inner {
    gap: 14px;
  }

  .brand-tag {
    display: none;
  }

  .desktop-nav {
    gap: 4px;
  }

  .nav-chip {
    padding: 9px 13px;
    font-size: 13px;
  }

  .intro-grid {
    gap: 44px;
  }
}

@media (max-width: 960px) {
  .desktop-nav {
    display: none;
  }

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

@media (max-width: 820px) {
  .container {
    padding-inline: 24px;
  }

  .page-hero {
    padding: 168px 0 82px;
  }

  .notice-intro,
  .notice-feed,
  .faq-section,
  .cta-section {
    padding-top: 84px;
    padding-bottom: 92px;
  }

  .notice-feed {
    padding: 72px 0;
  }

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

  .intro-visual {
    max-width: 640px;
  }

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

  .faq-lead {
    position: static;
  }

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

  .footer-brand-column p {
    max-width: 100%;
  }
}

@media (max-width: 600px) {
  body {
    font-size: 16px;
  }

  .container {
    padding-inline: 20px;
  }

  .site-header.is-scrolled .brand-tag {
    display: none;
  }

  .brand {
    gap: 8px;
  }

  .brand-text {
    font-size: 18px;
  }

  .brand-divider,
  .brand-tag {
    display: none;
  }

  .header-cta-btn {
    display: none;
  }

  .menu-toggle {
    width: 40px;
    height: 40px;
  }

  .page-hero {
    padding: 145px 0 72px;
  }

  .page-hero h1 {
    font-size: clamp(34px, 10.5vw, 52px);
    line-height: 1.22;
  }

  .hero-brand-stamp {
    font-size: 0.4em;
    letter-spacing: 0.08em;
  }

  .hero-desc {
    font-size: 16px;
    line-height: 1.85;
  }

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

  .notice-intro {
    padding-top: 76px;
  }

  .section-head h2,
  .intro-body h2,
  .faq-lead h2 {
    font-size: 30px;
    line-height: 1.35;
  }

  .notice-row {
    grid-template-columns: 1fr;
    gap: 14px;
    padding: 32px 0;
  }

  .notice-row:hover {
    padding-left: 8px;
  }

  .notice-date {
    flex-direction: row;
    align-items: center;
    gap: 10px;
    padding-top: 0;
  }

  .notice-date .date-day {
    font-size: 20px;
  }

  .notice-main h3 {
    font-size: 21px;
    line-height: 1.5;
  }

  .notice-highlight {
    flex-direction: column;
    gap: 10px;
    padding: 22px;
  }

  .highlight-icon {
    transform: none;
  }

  .faq-question {
    grid-template-columns: 34px 1fr 22px;
    gap: 10px;
    padding: 22px 0;
    font-size: 17px;
  }

  .faq-answer {
    padding: 0 12px 24px 44px;
  }

  .cta-section {
    padding: 84px 0 92px;
  }

  .cta-buttons .btn {
    width: 100%;
  }

  .footer-bottom {
    flex-direction: column;
  }

  .float-cta {
    right: 18px;
    bottom: 26px;
    width: 52px;
    height: 52px;
  }
}

@media (max-width: 390px) {
  .brand-text {
    font-size: 17px;
  }

  .hero-brand-stamp {
    font-size: 0.46em;
    letter-spacing: 0.02em;
  }

  .hero-title-main {
    font-size: 0.9em;
  }

  .mobile-menu {
    padding-inline: 20px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}