/* ============================================================
   加拿大PC站 · 共享样式 /assets/site.css
   直角 · 细线 · 精密网格 · 非对称编辑部版式
   ============================================================ */

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

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

body,
h1, h2, h3, h4, h5, h6,
p, figure, blockquote, dl, dd, ul, ol { margin: 0; }

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

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

button {
  font: inherit;
  color: inherit;
  background: none;
  border: 0;
  padding: 0;
  cursor: pointer;
}

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

table { border-collapse: collapse; width: 100%; }

/* ---------- 2. 变量 ---------- */
:root {
  --c-red: #D80621;
  --c-red-deep: #9E0417;
  --c-blue: #1B3A5C;
  --c-navy: #0E2233;
  --c-blue-mid: #2F6BA8;
  --c-orange: #FF7A29;
  --c-white: #FFFFFF;
  --c-mist: #F4F5F7;
  --c-grid: #DDE1E6;
  --c-ink: #3A4553;
  --c-slate: #64748B;
  --c-aurora: #3FBFA8;

  --font-display: "Inter", "Source Han Sans SC", "Noto Sans SC", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --font-body: "Inter", "Source Han Sans SC", "Noto Sans SC", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --font-mono: "IBM Plex Mono", "SFMono-Regular", "Menlo", "Consolas", "Liberation Mono", monospace;

  --gutter: clamp(18px, 4vw, 56px);
  --maxw: 1360px;
  --hair: 1px solid var(--c-grid);
  --ease: cubic-bezier(.22, .61, .36, 1);
  --step: 160ms;
  --shadow-lift: 0 18px 40px -28px rgba(14, 34, 51, .55);
  --focus-ring: 0 0 0 3px rgba(255, 122, 41, .6);
}

/* ---------- 3. 基础排版 ---------- */
body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.75;
  color: var(--c-ink);
  background: var(--c-white);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

@media (min-width: 1100px) {
  body { font-size: 17px; }
}

p { max-width: 74ch; }

strong, b { font-weight: 800; color: var(--c-blue); }

a:not([class]) {
  color: var(--c-blue-mid);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 4px;
}

a:not([class]):hover { color: var(--c-red); }

:focus-visible {
  outline: 2px solid var(--c-orange);
  outline-offset: 3px;
  border-radius: 0;
}

/* ---------- 4. 布局容器与网格 ---------- */
.wrap {
  width: min(var(--maxw), calc(100% - var(--gutter) * 2));
  margin-inline: auto;
}

.grid-12 {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: clamp(18px, 2.2vw, 34px);
}

.col-4 { grid-column: 1 / span 4; }
.col-5 { grid-column: 1 / span 5; }
.col-6 { grid-column: 1 / span 6; }
.col-7 { grid-column: 1 / span 7; }
.col-8 { grid-column: 1 / span 8; }
.col-9 { grid-column: 1 / span 9; }
.col-10 { grid-column: 1 / span 10; }
.col-12 { grid-column: 1 / span 12; }
.col-aside { grid-column: 10 / span 3; }
.col-aside-left { grid-column: 1 / span 2; }
.col-offset-6 { grid-column: 7 / span 6; }

@media (max-width: 1023px) {
  .col-4, .col-5, .col-6, .col-7, .col-8, .col-9, .col-10 { grid-column: 1 / span 12; }
  .col-aside { grid-column: 1 / span 12; }
  .col-aside-left { grid-column: 1 / span 12; }
  .col-offset-6 { grid-column: 1 / span 12; }
}

.rule {
  height: 1px;
  background: var(--c-grid);
  border: 0;
  margin: 0;
}

/* ---------- 5. 区块节奏 ---------- */
.section {
  padding-block: clamp(56px, 7vw, 112px);
  position: relative;
}

.section--tight { padding-block: clamp(36px, 4vw, 64px); }
.section--mist { background: var(--c-mist); }

.section--deep {
  background: var(--c-navy);
  color: rgba(255, 255, 255, .84);
}

.section--deep .display,
.section--deep h2,
.section--deep h3 { color: #fff; }

.section--edge { border-top: var(--hair); }

.grid-texture {
  background-image:
    linear-gradient(to right, rgba(221, 225, 230, .9) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(221, 225, 230, .9) 1px, transparent 1px);
  background-size: 48px 48px;
  background-position: -1px -1px;
}

.aurora-band {
  height: 3px;
  border: 0;
  background: linear-gradient(90deg, var(--c-red) 0%, var(--c-orange) 28%, var(--c-aurora) 62%, var(--c-blue-mid) 100%);
}

/* ---------- 6. 展签文字 ---------- */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--c-red);
}

.eyebrow::before {
  content: "";
  width: 28px;
  height: 1px;
  background: currentColor;
}

.section--deep .eyebrow { color: var(--c-orange); }

.display {
  font-family: var(--font-display);
  font-weight: 900;
  line-height: 1.08;
  letter-spacing: -.02em;
  color: var(--c-blue);
}

.display--xl { font-size: clamp(34px, 7.4vw, 96px); line-height: 1.04; }
.display--l { font-size: clamp(30px, 4.8vw, 58px); }
.display--m { font-size: clamp(23px, 2.9vw, 38px); }
.display--s { font-size: clamp(19px, 2vw, 24px); line-height: 1.25; }

.lede {
  font-size: clamp(16px, 1.35vw, 18.5px);
  line-height: 1.75;
  color: var(--c-ink);
  max-width: 68ch;
}

.section--deep .lede { color: rgba(255, 255, 255, .78); }

.muted { color: var(--c-slate); }

.mono {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--c-slate);
}

.accent-red { color: var(--c-red); }
.accent-blue { color: var(--c-blue); }

/* ---------- 7. 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 13px 24px;
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: .04em;
  border: 1px solid transparent;
  background: transparent;
  transition: background var(--step) var(--ease),
              color var(--step) var(--ease),
              border-color var(--step) var(--ease),
              transform var(--step) var(--ease),
              box-shadow var(--step) var(--ease);
}

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

.btn--primary:hover,
.btn--primary:focus-visible {
  background: var(--c-red-deep);
  transform: translateY(-2px);
  box-shadow: 0 14px 28px -18px rgba(216, 6, 33, .9);
}

.btn--ghost {
  border-color: var(--c-blue);
  color: var(--c-blue);
}

.btn--ghost:hover,
.btn--ghost:focus-visible {
  background: var(--c-blue);
  color: #fff;
  transform: translateY(-2px);
}

.btn--quiet {
  border-color: var(--c-grid);
  color: var(--c-ink);
}

.btn--quiet:hover,
.btn--quiet:focus-visible {
  border-color: var(--c-blue);
  color: var(--c-blue);
  transform: translateY(-2px);
}

.btn__arrow {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .1em;
}

/* ---------- 8. Skip link ---------- */
.skip-link {
  position: absolute;
  left: var(--gutter);
  top: -80px;
  z-index: 200;
  padding: 12px 22px;
  background: var(--c-navy);
  color: #fff;
  font-weight: 700;
  font-size: 14px;
  letter-spacing: .04em;
  transition: top var(--step) var(--ease);
}

.skip-link:focus {
  top: 14px;
  outline: 2px solid var(--c-orange);
  outline-offset: 2px;
}

/* ---------- 9. 站点页头 ---------- */
.site-header {
  position: relative;
  z-index: 60;
  background: var(--c-white);
  border-top: 4px solid var(--c-red);
}

.site-header__bar {
  position: relative;
  border-bottom: var(--hair);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 26px;
  padding-block: 16px;
}

.masthead {
  display: flex;
  align-items: center;
  gap: 14px;
  min-width: 0;
}

.masthead__brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
}

.masthead__mark {
  display: grid;
  place-items: center;
  width: 32px;
  height: 32px;
  background: var(--c-red);
  color: #fff;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 15px;
  line-height: 1;
  transition: background var(--step) var(--ease);
}

.masthead__brand:hover .masthead__mark { background: var(--c-blue); }

.masthead__name {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(18px, 1.6vw, 21px);
  letter-spacing: .02em;
  color: var(--c-navy);
  white-space: nowrap;
}

.masthead__note {
  padding-left: 14px;
  border-left: var(--hair);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--c-slate);
  white-space: nowrap;
}

@media (max-width: 1180px) {
  .masthead__note { display: none; }
}

/* --- 导航 --- */
.primary-nav { display: flex; align-items: center; }

.nav-list {
  display: flex;
  align-items: center;
  gap: clamp(14px, 1.8vw, 30px);
}

.nav-list__item { display: flex; }

.nav-link {
  position: relative;
  display: inline-block;
  padding: 6px 1px;
  font-size: 14.5px;
  font-weight: 600;
  letter-spacing: .05em;
  color: var(--c-blue);
  transition: color var(--step) var(--ease);
}

.nav-link::after {
  content: "";
  position: absolute;
  left: 1px;
  right: 1px;
  bottom: 0;
  height: 2px;
  background: var(--c-orange);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform var(--step) var(--ease), background var(--step) var(--ease);
}

.nav-link:hover { color: var(--c-red); }
.nav-link:hover::after { transform: scaleX(1); }

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

.nav-link[aria-current="page"]::after {
  transform: scaleX(1);
  background: var(--c-red);
}

/* --- 移动端导航按钮 --- */
.nav-toggle {
  display: none;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  border: 1px solid var(--c-grid);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--c-blue);
  transition: background var(--step) var(--ease), color var(--step) var(--ease), border-color var(--step) var(--ease);
}

.nav-toggle:hover { border-color: var(--c-blue); }

.nav-toggle[aria-expanded="true"] {
  background: var(--c-blue);
  border-color: var(--c-blue);
  color: #fff;
}

.nav-toggle__bars {
  position: relative;
  display: block;
  width: 16px;
  height: 2px;
  background: currentColor;
}

.nav-toggle__bars::before,
.nav-toggle__bars::after {
  content: "";
  position: absolute;
  left: 0;
  width: 16px;
  height: 2px;
  background: currentColor;
}

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

/* ---------- 10. 首层服务栏 ---------- */
.service-bar {
  background-color: var(--c-navy);
  background-image: linear-gradient(100deg, #1B3A5C 0%, #123049 38%, #0E2233 68%, #3B0F18 100%);
  color: #fff;
  border-bottom: 1px solid rgba(255, 255, 255, .08);
}

.service-bar__wrap { position: relative; }

.service-bar__toggle {
  display: none;
  align-items: center;
  gap: 14px;
  width: 100%;
  padding: 15px 0;
  color: #fff;
  text-align: left;
}

.service-bar__toggle-label {
  font-weight: 800;
  font-size: 15px;
  letter-spacing: .08em;
}

.service-bar__toggle-hint {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, .58);
}

.service-bar__chevron {
  margin-left: auto;
  width: 9px;
  height: 9px;
  border-right: 1px solid var(--c-orange);
  border-bottom: 1px solid var(--c-orange);
  transform: rotate(45deg) translateY(-2px);
  transition: transform var(--step) var(--ease);
}

.service-bar__toggle[aria-expanded="true"] .service-bar__chevron {
  transform: rotate(-135deg) translateY(-2px);
}

.service-list {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.service-item { display: flex; }

.service-item__link {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  width: 100%;
  padding: 17px 22px 18px;
  border-left: 1px solid rgba(255, 255, 255, .14);
  transition: background var(--step) var(--ease), color var(--step) var(--ease);
}

.service-item:first-child .service-item__link { border-left-color: rgba(255, 255, 255, .04); }

.service-item__link:hover,
.service-item__link:focus-visible {
  background: rgba(216, 6, 33, .26);
}

.service-item__index {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .12em;
  color: rgba(255, 255, 255, .48);
  transition: color var(--step) var(--ease);
}

.service-item__link:hover .service-item__index,
.service-item__link:focus-visible .service-item__index { color: var(--c-orange); }

.service-item__body { display: block; min-width: 0; }

.service-item__label {
  display: block;
  font-weight: 800;
  font-size: 16px;
  letter-spacing: .07em;
  color: rgba(255, 255, 255, .9);
  transition: color var(--step) var(--ease);
}

.service-item__link:hover .service-item__label,
.service-item__link:focus-visible .service-item__label { color: #fff; }

.service-item__path {
  display: block;
  margin-top: 5px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .1em;
  color: rgba(255, 255, 255, .56);
}

/* ---------- 11. 面包屑 ---------- */
.breadcrumb {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--c-slate);
}

.breadcrumb ol,
.breadcrumb ul {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
}

.breadcrumb li {
  display: flex;
  align-items: center;
  gap: 10px;
}

.breadcrumb li + li::before {
  content: "/";
  color: var(--c-grid);
}

.breadcrumb a { color: var(--c-slate); }
.breadcrumb a:hover { color: var(--c-red); }
.breadcrumb [aria-current="page"] { color: var(--c-blue); }

/* ---------- 12. 图片容器 ---------- */
.figure {
  position: relative;
  display: block;
  margin: 0;
}

.figure__frame {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16 / 9;
  background: linear-gradient(135deg, #E9F0F7 0%, #F4F5F7 46%, #FBE8EB 100%);
  border: var(--hair);
}

.figure__frame--wide { aspect-ratio: 21 / 9; }
.figure__frame--tall { aspect-ratio: 4 / 5; }
.figure__frame--square { aspect-ratio: 1 / 1; }
.figure__frame--portrait { aspect-ratio: 3 / 4; }

.figure__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.figure__plate {
  position: absolute;
  left: 0;
  top: 0;
  z-index: 2;
  padding: 6px 11px;
  background: var(--c-red);
  color: #fff;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .14em;
  text-transform: uppercase;
}

.figure__caption {
  margin-top: 11px;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.6;
  letter-spacing: .08em;
  color: var(--c-slate);
  max-width: 62ch;
}

/* ---------- 13. 标签与筛选 ---------- */
.tag {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 5px 11px;
  border: 1px solid var(--c-grid);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--c-blue);
  background: var(--c-white);
}

.tag::before {
  content: "";
  width: 5px;
  height: 5px;
  background: var(--c-blue-mid);
}

.tag--aurora { border-color: rgba(63, 191, 168, .55); color: #22756A; }
.tag--aurora::before { background: var(--c-aurora); }

.tag--red { border-color: rgba(216, 6, 33, .35); color: var(--c-red); }
.tag--red::before { background: var(--c-red); }

.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.filter-btn {
  padding: 9px 17px;
  border: 1px solid var(--c-grid);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--c-ink);
  transition: background var(--step) var(--ease), color var(--step) var(--ease), border-color var(--step) var(--ease);
}

.filter-btn:hover { border-color: var(--c-blue); color: var(--c-blue); }

.filter-btn[aria-pressed="true"] {
  background: var(--c-blue);
  border-color: var(--c-blue);
  color: #fff;
}

[data-tags][hidden] { display: none; }

/* ---------- 14. 页脚 ---------- */
.site-footer {
  background: var(--c-navy);
  color: rgba(255, 255, 255, .74);
  border-top: 3px solid var(--c-red);
  padding-top: clamp(44px, 5vw, 72px);
}

.footer-lead {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 12px 22px;
  padding-bottom: 26px;
  border-bottom: 1px solid rgba(255, 255, 255, .12);
}

.footer-lead__brand {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(20px, 2.2vw, 28px);
  letter-spacing: .02em;
  color: #fff;
  max-width: none;
}

.footer-lead__note {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .1em;
  color: rgba(255, 255, 255, .55);
  max-width: none;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr 1.5fr 1fr;
  gap: clamp(26px, 3vw, 52px);
  padding-block: clamp(34px, 4vw, 56px);
}

.footer-col { min-width: 0; }

.footer-col__title {
  margin-bottom: 16px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--c-orange);
}

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

.footer-list--tags { gap: 9px; }

.footer-link {
  display: inline-block;
  font-size: 14.5px;
  color: rgba(255, 255, 255, .8);
  transition: color var(--step) var(--ease), transform var(--step) var(--ease);
}

.footer-link:hover,
.footer-link:focus-visible {
  color: #fff;
  transform: translateX(3px);
  text-decoration: underline;
  text-decoration-color: var(--c-orange);
  text-underline-offset: 5px;
}

.footer-tag {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-size: 14px;
  color: rgba(255, 255, 255, .72);
}

.footer-tag::before {
  content: "";
  width: 5px;
  height: 5px;
  background: var(--c-aurora);
  flex: none;
}

.footer-contact { gap: 12px; }

.footer-address,
.footer-hours,
.footer-icp {
  display: block;
  font-size: 13.5px;
  line-height: 1.7;
  color: rgba(255, 255, 255, .68);
  max-width: 34ch;
}

.footer-icp { font-family: var(--font-mono); letter-spacing: .08em; }

.copy-btn {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  max-width: 100%;
  padding: 2px 0;
  font-size: 14px;
  color: rgba(255, 255, 255, .85);
  border-bottom: 1px dashed rgba(255, 255, 255, .28);
  transition: color var(--step) var(--ease), border-color var(--step) var(--ease);
}

.copy-btn:hover,
.copy-btn:focus-visible {
  color: #fff;
  border-bottom-color: var(--c-orange);
}

.copy-btn__text {
  overflow-wrap: anywhere;
}

.copy-btn__hint {
  flex: none;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--c-orange);
}

.footer-base {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding-block: 22px 30px;
  border-top: 1px solid rgba(255, 255, 255, .12);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .1em;
  color: rgba(255, 255, 255, .5);
}

.footer-base__copy,
.footer-base__meta { max-width: none; }

/* ---------- 15. 滚动进度 / 返回顶部 ---------- */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 120;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--c-red) 0%, var(--c-orange) 55%, var(--c-aurora) 100%);
  transform: scaleX(0);
  transform-origin: left center;
  pointer-events: none;
}

.to-top {
  position: fixed;
  right: clamp(14px, 2vw, 28px);
  bottom: clamp(14px, 2vw, 28px);
  z-index: 110;
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  background: var(--c-blue);
  color: #fff;
  border: 1px solid rgba(255, 255, 255, .22);
  font-family: var(--font-mono);
  font-size: 15px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: opacity var(--step) var(--ease),
              transform var(--step) var(--ease),
              visibility var(--step) var(--ease),
              background var(--step) var(--ease);
}

.to-top[data-visible="true"] {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.to-top:hover { background: var(--c-red); }

/* ---------- 16. 内容显现 ---------- */
html.js [data-reveal] {
  opacity: 0;
  transform: translateY(16px);
}

html.js [data-reveal].is-visible {
  opacity: 1;
  transform: none;
  transition: opacity 220ms var(--ease), transform 220ms var(--ease);
}

/* ---------- 17. 响应式 ---------- */
@media (max-width: 1180px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 1023px) {
  .nav-toggle { display: inline-flex; }

  .primary-nav {
    position: absolute;
    left: 0;
    right: 0;
    top: 100%;
    display: none;
    background: var(--c-white);
    border-bottom: 2px solid var(--c-red);
    box-shadow: var(--shadow-lift);
  }

  .primary-nav[data-open="true"] { display: block; }

  .nav-list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 6px var(--gutter) 20px;
  }

  .nav-link {
    display: block;
    padding: 15px 0;
    font-size: 16.5px;
    border-bottom: var(--hair);
  }

  .nav-link::after { display: none; }

  .nav-link[aria-current="page"] {
    box-shadow: inset 3px 0 0 var(--c-red);
    padding-left: 12px;
  }

  .service-list { grid-template-columns: repeat(2, minmax(0, 1fr)); }

  .service-item__link { border-top: 1px solid rgba(255, 255, 255, .12); }
}

@media (max-width: 900px) {
  .service-bar__toggle { display: flex; }

  .service-list {
    display: none;
    grid-template-columns: minmax(0, 1fr);
    padding-bottom: 12px;
  }

  .service-list[data-open="true"] { display: grid; }

  .service-item__link {
    border-left: 0;
    padding: 14px 0 15px;
  }

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

  .service-item__label { font-size: 15.5px; }
}

@media (max-width: 760px) {
  .site-header__inner { padding-block: 13px; }

  .masthead__mark { width: 28px; height: 28px; font-size: 13px; }

  .footer-grid { grid-template-columns: minmax(0, 1fr); gap: 30px; }

  .footer-base { font-size: 11px; }

  .to-top { width: 42px; height: 42px; }
}

/* ---------- 18. 无障碍与低动效 ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }

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

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