/* 联系我们独立页 (/contact/) 样式：桌面双栏、手机单栏。仅作用于 .ddd-contact-page-shell 内部。 */
:root {
  --contact-ink: #17242a;
  --contact-muted: #5e6a70;
  --contact-brand: #103943;
  --contact-blue: #1d527b;
  --contact-accent: #ef6a3a;
  --contact-line: #dfe7e8;
  --contact-soft: #f4f8f8;
  --contact-white: #fff;
}

.ddd-contact-page-shell,
.ddd-contact-page-shell * { box-sizing: border-box; }

.ddd-contact-page-shell { color: var(--contact-ink); background: var(--contact-soft); }
.ddd-contact-page-shell a { color: inherit; }
.ddd-contact-page-header,
.ddd-contact-page-shell main { width: min(1180px, calc(100% - 32px)); margin: 0 auto; }
.ddd-contact-page-header { padding: 76px 0 52px; }
.ddd-contact-page-eyebrow,
.ddd-contact-page-kicker { margin: 0 0 12px; color: var(--contact-accent); font-size: 14px; font-weight: 700; letter-spacing: .04em; line-height: 22px; }
.ddd-contact-page-header h1 { margin: 0; color: var(--contact-brand); font-size: clamp(34px, 4vw, 52px); line-height: 1.2; }
.ddd-contact-page-header > p:last-child { max-width: 680px; margin: 18px 0 0; color: var(--contact-muted); font-size: 17px; line-height: 30px; }
.ddd-contact-company { display: grid; grid-template-columns: minmax(0, 1.5fr) minmax(280px, .7fr); gap: 28px; padding: 34px; border-top: 4px solid var(--contact-brand); background: var(--contact-white); }
.ddd-contact-company h2,
.ddd-contact-card h2,
.ddd-contact-services h2,
.ddd-contact-wechat h2 { margin: 0; color: var(--contact-brand); font-size: 28px; line-height: 1.35; }
.ddd-contact-company-copy > p:not(.ddd-contact-page-kicker) { max-width: 760px; margin: 16px 0 0; color: var(--contact-muted); font-size: 16px; line-height: 29px; }
.ddd-contact-checks { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px 24px; margin: 22px 0 0; padding: 0; list-style: none; color: var(--contact-brand); font-size: 14px; line-height: 24px; }
.ddd-contact-checks li::before { content: "✓"; display: inline-block; margin-right: 8px; color: var(--contact-accent); font-weight: 700; }
.ddd-contact-company-note { align-self: center; padding: 24px; border-left: 3px solid var(--contact-accent); background: #fff7f3; }
.ddd-contact-status { display: block; margin-bottom: 10px; color: var(--contact-accent); font-size: 13px; font-weight: 700; }
.ddd-contact-company-note strong { display: block; color: var(--contact-brand); font-size: 22px; line-height: 1.35; }
.ddd-contact-company-note p { margin: 12px 0 0; color: var(--contact-muted); font-size: 14px; line-height: 25px; }
.ddd-contact-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; margin-top: 20px; }
.ddd-contact-card { padding: 30px; border: 1px solid var(--contact-line); background: var(--contact-white); }
.ddd-contact-card-accent { border-top: 4px solid var(--contact-accent); }
.ddd-contact-card dl { margin: 22px 0 0; }
.ddd-contact-card dl > div { display: grid; grid-template-columns: 128px minmax(0, 1fr); gap: 16px; padding: 12px 0; border-top: 1px solid var(--contact-line); }
.ddd-contact-card dt { color: var(--contact-muted); font-size: 14px; line-height: 24px; }
.ddd-contact-card dd { margin: 0; color: var(--contact-ink); font-size: 15px; line-height: 24px; overflow-wrap: anywhere; }
.ddd-contact-card dd a { color: var(--contact-blue); font-weight: 700; text-decoration: none; }
.ddd-contact-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 22px; }
.ddd-contact-primary,
.ddd-contact-secondary { min-height: 44px; padding: 10px 20px; border: 1px solid var(--contact-accent); font: inherit; font-size: 14px; font-weight: 700; line-height: 22px; cursor: pointer; text-decoration: none; }
.ddd-contact-primary { color: var(--contact-white) !important; background: var(--contact-accent); }
.ddd-contact-secondary { color: var(--contact-accent); background: var(--contact-white); }
.ddd-contact-copy-state { min-height: 22px; margin: 8px 0 0; color: var(--contact-accent); font-size: 13px; line-height: 22px; }
.ddd-contact-services { display: grid; grid-template-columns: minmax(280px, .8fr) minmax(0, 1.2fr); gap: 34px; margin-top: 20px; padding: 34px; background: var(--contact-brand); color: var(--contact-white); }
.ddd-contact-services h2 { color: var(--contact-white); }
.ddd-contact-services ul { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1px; margin: 0; padding: 0; list-style: none; background: rgba(255,255,255,.18); }
.ddd-contact-services li { display: flex; min-height: 110px; flex-direction: column; justify-content: center; padding: 20px; background: var(--contact-brand); }
.ddd-contact-services strong { font-size: 17px; line-height: 25px; }
.ddd-contact-services span { margin-top: 7px; color: rgba(255,255,255,.72); font-size: 13px; line-height: 22px; }
.ddd-contact-wechat { display: grid; grid-template-columns: minmax(0, 1fr) 220px; align-items: center; gap: 28px; margin-top: 20px; padding: 34px; background: var(--contact-white); }
.ddd-contact-wechat p:not(.ddd-contact-page-kicker) { max-width: 640px; margin: 14px 0 0; color: var(--contact-muted); font-size: 15px; line-height: 27px; }
.ddd-contact-wechat figure { margin: 0; text-align: center; }
.ddd-contact-wechat img { display: block; width: 180px; height: 178px; margin: 0 auto; object-fit: contain; }
.ddd-contact-wechat figcaption { margin-top: 8px; color: var(--contact-muted); font-size: 12px; line-height: 20px; }
.ddd-contact-page-footer { margin-top: 56px; padding: 28px 16px; color: rgba(255,255,255,.78); background: var(--contact-brand); text-align: center; }
.ddd-contact-page-footer p { margin: 5px 0; font-size: 13px; line-height: 22px; }
.ddd-contact-page-footer a { color: var(--contact-white); text-decoration: none; }

@media screen and (max-width: 760px) {
  .ddd-contact-page-header,
  .ddd-contact-page-shell main { width: calc(100% - 32px); }
  .ddd-contact-page-header { padding: 52px 0 34px; }
  .ddd-contact-page-header h1 { font-size: 36px; }
  .ddd-contact-page-header > p:last-child { font-size: 15px; line-height: 26px; }
  .ddd-contact-company,
  .ddd-contact-grid,
  .ddd-contact-services,
  .ddd-contact-wechat { grid-template-columns: 1fr; }
  .ddd-contact-company,
  .ddd-contact-card,
  .ddd-contact-services,
  .ddd-contact-wechat { padding: 24px 20px; }
  .ddd-contact-company h2,
  .ddd-contact-card h2,
  .ddd-contact-services h2,
  .ddd-contact-wechat h2 { font-size: 26px; }
  .ddd-contact-checks,
  .ddd-contact-services ul { grid-template-columns: 1fr; }
  .ddd-contact-card dl > div { grid-template-columns: 108px minmax(0, 1fr); gap: 10px; }
  .ddd-contact-services ul { margin-top: 2px; }
}

@media (prefers-reduced-motion: reduce) { *, *::before, *::after { scroll-behavior: auto !important; } }