/* ===================== 博万娱乐会馆 · CN站 共享样式 /assets/site.css ===================== */

/* ---------- 1. reset ---------- */
*,
*::before,
*::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body { margin: 0; }

h1, h2, h3, h4, h5, h6, p, ul, ol, figure, blockquote, dl, dd { margin: 0; }
ul, ol { padding: 0; list-style: none; }
img, svg, video { display: block; max-width: 100%; }
a { color: inherit; }
button { font: inherit; color: inherit; background: none; border: 0; }
table { border-collapse: collapse; width: 100%; }
address { font-style: normal; }

/* ---------- 2. CSS 变量 ---------- */
:root {
  --ink: #0B0B0D;
  --ink-2: #14161A;
  --marble: #1E2126;
  --line: #262A32;
  --gold: #C8A253;
  --gold-light: #E4C77B;
  --cyan: #2EE6D6;
  --red: #FF4D4F;
  --teal: #0E3B3A;
  --violet: #241B3A;
  --paper: #F2F0EA;
  --cool: #9AA0A6;

  --wrap: 1240px;
  --gutter: clamp(16px, 4vw, 32px);

  --f-display: "Noto Sans SC", "Source Han Sans SC", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
  --f-body: "Noto Sans SC", "Source Han Sans SC", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
  --f-mono: "JetBrains Mono", "Roboto Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;

  --ease: cubic-bezier(.2, .7, .3, 1);
  --fast: 160ms;
}

/* ---------- 3. 基础排版 ---------- */
body {
  background: var(--ink);
  color: var(--paper);
  font-family: var(--f-body);
  font-size: 16px;
  font-weight: 400;
  line-height: 1.75;
  letter-spacing: .02em;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

#main-content { flex: 1 1 auto; }

h1 {
  font-family: var(--f-display);
  font-size: clamp(30px, 6vw, 64px);
  font-weight: 900;
  letter-spacing: -.01em;
  line-height: 1.06;
}

h2 {
  font-family: var(--f-display);
  font-size: clamp(24px, 3.4vw, 34px);
  font-weight: 900;
  letter-spacing: -.01em;
  line-height: 1.18;
}

h3 {
  font-family: var(--f-display);
  font-size: clamp(20px, 2.4vw, 24px);
  font-weight: 800;
  letter-spacing: -.005em;
  line-height: 1.3;
}

h4 {
  font-size: 17px;
  font-weight: 800;
  letter-spacing: .02em;
  line-height: 1.45;
}

strong { font-weight: 800; }
small { font-size: 13px; }

::selection {
  background: var(--gold);
  color: #0B0B0D;
}

/* ---------- 4. 焦点与可见性 ---------- */
:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

.skip-link {
  position: absolute;
  left: 12px;
  top: -80px;
  z-index: 200;
  padding: 10px 16px;
  background: var(--gold);
  color: #0B0B0D;
  font-weight: 800;
  letter-spacing: .04em;
  text-decoration: none;
  transition: top var(--fast) var(--ease);
}

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

.visually-hidden {
  position: absolute !important;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

/* ---------- 5. 通用容器与分区 ---------- */
.container {
  width: 100%;
  max-width: var(--wrap);
  margin: 0 auto;
  padding-left: var(--gutter);
  padding-right: var(--gutter);
}

.section {
  padding: clamp(32px, 5vw, 68px) 0;
}

.section__head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 14px 24px;
  border-top: 1px solid var(--line);
  padding-top: 18px;
  margin-bottom: clamp(20px, 3vw, 32px);
}

.section__title {
  margin: 0;
  font-family: var(--f-display);
  font-size: clamp(24px, 3.4vw, 34px);
  font-weight: 900;
  letter-spacing: -.01em;
  line-height: 1.16;
}

.section__lead {
  max-width: 62ch;
  margin-top: 10px;
  color: var(--cool);
  font-size: 16px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 12px;
  font-family: var(--f-mono);
  font-size: 11.5px;
  font-weight: 500;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--gold);
}

.eyebrow::before {
  content: "";
  width: 18px;
  height: 1px;
  background: var(--gold);
}

.prose {
  max-width: 68ch;
  font-size: 17px;
  line-height: 1.8;
  color: #DCD9D1;
}

.prose p + p { margin-top: 1em; }
.prose strong { color: var(--gold-light); }

/* ---------- 6. 网格 ---------- */
.grid-12 {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: clamp(16px, 2vw, 28px);
}

[class*="col-"] { grid-column: 1 / -1; }

@media (min-width: 900px) {
  .col-3 { grid-column: span 3; }
  .col-4 { grid-column: span 4; }
  .col-5 { grid-column: span 5; }
  .col-6 { grid-column: span 6; }
  .col-7 { grid-column: span 7; }
  .col-8 { grid-column: span 8; }
  .col-9 { grid-column: span 9; }
  .col-12 { grid-column: 1 / -1; }
}

/* ---------- 7. 按钮与行动入口 ---------- */
.cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 18px;
  font-size: 14.5px;
  font-weight: 800;
  letter-spacing: .04em;
  white-space: nowrap;
  text-decoration: none;
  border: 1px solid transparent;
  background: transparent;
  cursor: pointer;
  transition: background-color var(--fast) var(--ease),
              color var(--fast) var(--ease),
              border-color var(--fast) var(--ease),
              transform var(--fast) var(--ease);
}

.cta--ghost {
  border-color: var(--marble);
  color: var(--paper);
}

.cta--ghost:hover {
  border-color: var(--gold);
  color: var(--gold-light);
  transform: translateY(-2px);
}

.cta--solid {
  background: var(--gold);
  border-color: var(--gold);
  color: #0B0B0D;
}

.cta--solid:hover {
  background: var(--gold-light);
  border-color: var(--gold-light);
  color: #0B0B0D;
  transform: translateY(-2px);
}

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

.cta:disabled,
.cta[aria-disabled="true"] {
  opacity: .45;
  cursor: not-allowed;
  transform: none;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 16px;
  font-size: 14.5px;
  font-weight: 700;
  letter-spacing: .03em;
  text-decoration: none;
  border: 1px solid var(--marble);
  background: var(--ink-2);
  color: var(--paper);
  cursor: pointer;
  transition: background-color var(--fast) var(--ease),
              color var(--fast) var(--ease),
              border-color var(--fast) var(--ease),
              transform var(--fast) var(--ease);
}

.btn:hover {
  border-color: var(--gold);
  color: var(--gold-light);
  transform: translateY(-2px);
}

.btn--accent {
  border-color: rgba(46, 230, 214, .45);
  color: var(--cyan);
}

.btn--accent:hover {
  background: rgba(46, 230, 214, .1);
  border-color: var(--cyan);
  color: var(--cyan);
}

.btn--quiet {
  border-color: transparent;
  background: transparent;
  color: var(--cool);
}

.btn--quiet:hover {
  color: var(--gold-light);
  border-color: transparent;
}

.btn:disabled,
.btn[aria-disabled="true"] {
  opacity: .45;
  cursor: not-allowed;
  transform: none;
}

.link-more {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding-bottom: 2px;
  font-family: var(--f-mono);
  font-size: 12.5px;
  letter-spacing: .12em;
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(46, 230, 214, .35);
  transition: color var(--fast) var(--ease), border-color var(--fast) var(--ease);
}

.link-more:hover {
  color: var(--gold-light);
  border-bottom-color: var(--gold);
}

/* ---------- 8. 页头：灯牌 -------------------------------------------------- */
.masthead {
  position: relative;
  z-index: 80;
  background: var(--ink);
}

.topline {
  background: linear-gradient(90deg, var(--teal) 0%, var(--violet) 55%, var(--ink-2) 100%);
  border-bottom: 1px solid var(--line);
}

.topline__inner {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 7px var(--gutter);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 6px 20px;
  font-size: 13px;
  color: var(--cool);
}

.topline__text {
  color: #CFD4D8;
  line-height: 1.5;
}

.topline__meta {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--f-mono);
  font-size: 11.5px;
  letter-spacing: .1em;
  color: var(--gold-light);
  line-height: 1.5;
}

.status-dot {
  display: inline-block;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 0 3px rgba(46, 230, 214, .16);
}

.brandbar {
  background: var(--ink);
  border-bottom: 1px solid var(--line);
}

.brandbar__inner {
  position: relative;
  max-width: var(--wrap);
  margin: 0 auto;
  padding: clamp(14px, 2.4vw, 22px) var(--gutter);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px clamp(16px, 3vw, 32px);
}

.brand {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding-left: 15px;
  margin-right: auto;
  text-decoration: none;
}

.brand::before {
  content: "";
  position: absolute;
  left: 0;
  top: 3px;
  bottom: 3px;
  width: 3px;
  background: linear-gradient(180deg, var(--gold) 0%, rgba(200, 162, 83, 0) 100%);
}

.brand__mark {
  font-family: var(--f-display);
  font-size: clamp(19px, 2.4vw, 25px);
  font-weight: 900;
  letter-spacing: .02em;
  line-height: 1.2;
  color: var(--paper);
  transition: color var(--fast) var(--ease);
}

.brand__tagline {
  font-family: var(--f-mono);
  font-size: 11.5px;
  letter-spacing: .16em;
  color: var(--cool);
  line-height: 1.4;
}

.brand:hover .brand__mark,
.brand:hover .brand__tagline { color: var(--gold-light); }

.brandbar__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
}

.nav-toggle {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 9px 13px;
  border: 1px solid var(--marble);
  background: var(--ink-2);
  color: var(--gold-light);
  font-family: var(--f-mono);
  font-size: 12px;
  letter-spacing: .12em;
  cursor: pointer;
  transition: color var(--fast) var(--ease), border-color var(--fast) var(--ease);
}

.nav-toggle__bars {
  position: relative;
  display: block;
  width: 18px;
  height: 2px;
  background: var(--gold);
  transition: background-color var(--fast) var(--ease);
}

.nav-toggle__bars::before,
.nav-toggle__bars::after {
  content: "";
  position: absolute;
  left: 0;
  width: 18px;
  height: 2px;
  background: var(--gold);
  transition: background-color var(--fast) var(--ease);
}

.nav-toggle__bars::before { top: -5px; }
.nav-toggle__bars::after { top: 5px; }

.nav-toggle__label { line-height: 1; }

.nav-toggle:hover {
  border-color: var(--gold);
  color: var(--paper);
}

.nav-toggle[aria-expanded="true"] {
  border-color: var(--cyan);
  color: var(--cyan);
}

.nav-toggle[aria-expanded="true"] .nav-toggle__bars,
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::before,
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::after {
  background: var(--cyan);
}

.navbar {
  display: none;
  background: var(--ink-2);
  border-bottom: 1px solid var(--line);
}

.navbar[data-open] { display: block; }

.navbar__inner {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 6px var(--gutter) 12px;
}

.nav-list {
  display: flex;
  flex-direction: column;
}

.nav-list__item { min-width: 0; }

.nav-link {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 14px 4px;
  font-size: 16px;
  font-weight: 700;
  letter-spacing: .04em;
  color: var(--cool);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  transition: color var(--fast) var(--ease),
              border-color var(--fast) var(--ease),
              transform var(--fast) var(--ease);
}

.nav-link__code {
  font-family: var(--f-mono);
  font-size: 11.5px;
  font-weight: 500;
  letter-spacing: .1em;
  color: var(--gold);
}

.nav-link:hover {
  color: var(--gold-light);
  border-bottom-color: var(--gold);
  transform: translateY(-2px);
}

.nav-link[aria-current="page"] {
  color: var(--gold-light);
  border-bottom-color: var(--gold);
  border-bottom-width: 2px;
}

.nav-link[aria-current="page"] .nav-link__code { color: var(--cyan); }

@media (min-width: 900px) {
  .navbar { display: block; background: var(--ink); }

  .navbar__inner { padding: 0 var(--gutter); }

  .nav-list { flex-direction: row; flex-wrap: wrap; }

  .nav-link {
    padding: 14px 16px;
    font-size: 15px;
    border-bottom: 2px solid transparent;
  }

  .nav-toggle { display: none; }

  .brandbar__inner { flex-wrap: nowrap; }
}

/* ---------- 9. 顶部滚动进度线 ---------- */
.progress-rail {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  z-index: 120;
  background: rgba(200, 162, 83, .14);
  pointer-events: none;
}

.progress-bar {
  display: block;
  height: 100%;
  width: 100%;
  transform: scaleX(0);
  transform-origin: 0 50%;
  background: linear-gradient(90deg, var(--gold) 0%, var(--cyan) 100%);
}

/* ---------- 10. 页脚 ---------- */
.site-footer {
  position: relative;
  margin-top: clamp(56px, 9vw, 110px);
  background: var(--ink-2);
  border-top: 1px solid var(--line);
}

.site-footer::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg,
    var(--gold) 0%,
    rgba(200, 162, 83, 0) 38%,
    rgba(46, 230, 214, .5) 70%,
    var(--cyan) 100%);
}

.footer__inner {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: clamp(32px, 5vw, 56px) var(--gutter) clamp(24px, 3vw, 36px);
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 3.5vw, 48px);
}

.footer__brand { min-width: 0; }

.footer__mark {
  font-family: var(--f-display);
  font-size: 20px;
  font-weight: 900;
  letter-spacing: .02em;
  color: var(--paper);
}

.footer__tagline {
  margin-top: 6px;
  font-family: var(--f-mono);
  font-size: 11.5px;
  letter-spacing: .16em;
  color: var(--gold);
}

.footer__note {
  margin-top: 14px;
  max-width: 34ch;
  font-size: 14px;
  color: var(--cool);
  line-height: 1.7;
}

.footer__col { min-width: 0; }

.footer__title {
  margin: 0 0 14px;
  font-family: var(--f-mono);
  font-size: 11.5px;
  font-weight: 500;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--gold);
}

.footer__list {
  display: flex;
  flex-direction: column;
  gap: 9px;
}

.footer__list a {
  display: inline-block;
  font-size: 15px;
  color: var(--paper);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--fast) var(--ease),
              border-color var(--fast) var(--ease),
              transform var(--fast) var(--ease);
}

.footer__list a:hover {
  color: var(--gold-light);
  border-bottom-color: var(--gold);
  transform: translateX(2px);
}

.footer__list--plain { gap: 8px; }

.footer__line {
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--cool);
  word-break: break-word;
}

.footer__legal {
  border-top: 1px solid var(--line);
  background: linear-gradient(90deg,
    rgba(14, 59, 58, .55) 0%,
    rgba(36, 27, 58, .55) 55%,
    rgba(11, 11, 13, 0) 100%);
}

.footer__legal-inner {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 16px var(--gutter);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px 24px;
  font-size: 13.5px;
  color: var(--cool);
}

.footer__copy { line-height: 1.6; }

.footer__links {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 18px;
}

.footer__links a {
  color: var(--cool);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--fast) var(--ease), border-color var(--fast) var(--ease);
}

.footer__links a:hover {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

.footer__icp {
  font-family: var(--f-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: #7E848A;
}

@media (min-width: 700px) {
  .footer__inner { grid-template-columns: 1fr 1fr; }
  .footer__brand { grid-column: 1 / -1; }
}

@media (min-width: 1024px) {
  .footer__inner { grid-template-columns: 1.5fr 1fr 1fr 1.4fr; }
  .footer__brand { grid-column: auto; }
}

/* ---------- 11. 通用信息组件 ---------- */
.panel {
  position: relative;
  padding: clamp(18px, 2.6vw, 28px);
  border: 1px solid var(--line);
  background: var(--ink-2);
}

.panel--teal {
  background: linear-gradient(160deg, var(--teal) 0%, #08201F 100%);
  border-color: rgba(46, 230, 214, .22);
}

.panel--violet {
  background: linear-gradient(160deg, var(--violet) 0%, #150F24 100%);
  border-color: rgba(200, 162, 83, .22);
}

.panel__label {
  display: block;
  margin-bottom: 12px;
  font-family: var(--f-mono);
  font-size: 11.5px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--gold);
}

.status-panel {
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.status-item {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 6px 16px;
  padding: 14px 18px;
  background: var(--ink-2);
}

.status-item__key {
  font-family: var(--f-mono);
  font-size: 11.5px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--cool);
}

.status-item__val {
  font-size: 15px;
  font-weight: 800;
  color: var(--gold-light);
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 9px;
  border: 1px solid var(--marble);
  background: rgba(200, 162, 83, .08);
  color: var(--gold-light);
  font-family: var(--f-mono);
  font-size: 11.5px;
  letter-spacing: .1em;
  line-height: 1.6;
}

.tag--cyan {
  border-color: rgba(46, 230, 214, .4);
  background: rgba(46, 230, 214, .07);
  color: var(--cyan);
}

.tag--red {
  border-color: rgba(255, 77, 79, .5);
  background: rgba(255, 77, 79, .08);
  color: #FF8A8C;
}

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

.index-list__item {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 12px 0;
  color: var(--paper);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  transition: color var(--fast) var(--ease),
              border-color var(--fast) var(--ease),
              transform var(--fast) var(--ease);
}

.index-list__item:hover {
  color: var(--gold-light);
  border-bottom-color: var(--gold);
  transform: translateX(2px);
}

.index-list__code {
  min-width: 2.6em;
  font-family: var(--f-mono);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--gold);
}

.index-list__text { font-size: 15.5px; }

.table-scroll {
  overflow-x: auto;
  border: 1px solid var(--line);
  background: var(--ink-2);
}

.data-table {
  width: 100%;
  min-width: 520px;
  font-size: 15px;
}

.data-table th,
.data-table td {
  padding: 12px 16px;
  text-align: left;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}

.data-table th {
  font-family: var(--f-mono);
  font-size: 11.5px;
  font-weight: 500;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--gold);
  background: rgba(200, 162, 83, .05);
  white-space: nowrap;
}

.data-table tbody tr:last-child td { border-bottom: 0; }

.data-table tbody tr:hover td { background: rgba(46, 230, 214, .05); }

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 10px;
  font-family: var(--f-mono);
  font-size: 11.5px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--cool);
}

.breadcrumb__item {
  color: var(--cool);
  text-decoration: none;
  transition: color var(--fast) var(--ease);
}

.breadcrumb__item:hover { color: var(--gold-light); }

.breadcrumb__item[aria-current="page"] { color: var(--gold-light); }

.breadcrumb__sep { color: rgba(154, 160, 166, .55); }

.callout {
  padding: 16px 18px 16px 20px;
  border-left: 2px solid var(--gold);
  background: rgba(200, 162, 83, .06);
  color: #DCD9D1;
  font-size: 15px;
  line-height: 1.75;
}

/* ---------- 12. 图片容器基础规则 ---------- */
.figure {
  position: relative;
  display: block;
  margin: 0;
  overflow: hidden;
  background: var(--ink-2);
  border: 1px solid var(--line);
}

.figure::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: 0;
  width: 24px;
  height: 24px;
  background: linear-gradient(135deg, transparent 50%, rgba(200, 162, 83, .85) 50%);
  pointer-events: none;
}

.figure__img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(.95) contrast(1.05);
}

.figure__placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 100%;
  background:
    repeating-linear-gradient(135deg,
      rgba(200, 162, 83, .06) 0 2px,
      transparent 2px 9px),
    linear-gradient(160deg, var(--ink-2) 0%, #101216 100%);
  color: var(--cool);
  font-family: var(--f-mono);
  font-size: 11.5px;
  letter-spacing: .16em;
  text-transform: uppercase;
}

.figure__caption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 12px 14px 10px;
  background: linear-gradient(0deg, rgba(11, 11, 13, .94) 0%, rgba(11, 11, 13, 0) 100%);
  font-family: var(--f-mono);
  font-size: 11.5px;
  letter-spacing: .1em;
  color: var(--gold-light);
}

.figure--wide { aspect-ratio: 16 / 9; }
.figure--tall { aspect-ratio: 3 / 4; }
.figure--portrait { aspect-ratio: 4 / 5; }
.figure--square { aspect-ratio: 1 / 1; }

.photo-strip {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
  gap: clamp(8px, 1.4vw, 14px);
}

/* ---------- 13. 进入视口显现 ---------- */
[data-reveal] {
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 200ms var(--ease), transform 200ms var(--ease);
}

[data-reveal].is-visible {
  opacity: 1;
  transform: none;
}

/* ---------- 14. 响应式微调 ---------- */
@media (max-width: 899px) {
  .progress-rail { height: 3px; }

  .topline__inner { font-size: 12.5px; }

  .brand { padding-right: 62px; }

  .nav-toggle {
    position: absolute;
    top: 14px;
    right: var(--gutter);
  }

  .brandbar__actions { width: 100%; }
  .brandbar__actions .cta { flex: 1 1 auto; }
}

@media (max-width: 420px) {
  .topline__meta { display: none; }
  .nav-toggle__label { display: none; }
  .nav-toggle { padding: 10px 12px; }
}

/* ---------- 15. 动效克制 ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }

  *,
  *::before,
  *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
  }

  [data-reveal] {
    opacity: 1;
    transform: none;
  }

  .cta:hover,
  .btn:hover,
  .nav-link:hover,
  .index-list__item:hover,
  .footer__list a:hover {
    transform: none;
  }
}