/* ==========================================================================
   套朴营销 · 站点样式 (site.css)
   依赖 tokens.css。分区：基础 → 可访问性 → 布局 → 头部 → 按钮 → 首屏
   → 区块 → 服务 → 案例 → 团队 → 资源 → 联系 → 页脚 → 占位 → 404 → 响应式
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. 基础重置
   -------------------------------------------------------------------------- */
*,
*::before,
*::after { box-sizing: border-box; }

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

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: var(--fs-body);
  line-height: var(--lh-body);
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

h1, h2, h3, h4 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 500;
  line-height: 1.24;
  letter-spacing: -.01em;
  color: var(--ink-900);
  text-wrap: balance;
}

p { margin: 0; }

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

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

a {
  color: var(--wine-700);
  text-decoration: none;
  text-underline-offset: .22em;
  text-decoration-thickness: 1px;
}
a:hover { text-decoration: underline; }

strong { font-weight: 600; }

hr {
  border: 0;
  border-top: 1px solid var(--line);
  margin: 0;
}

::selection {
  background: var(--gold-300);
  color: var(--ink-900);
}

/* --------------------------------------------------------------------------
   2. 可访问性
   -------------------------------------------------------------------------- */
.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 200;
  padding: 12px 20px;
  background: var(--wine-800);
  color: var(--cream-50);
  font-size: var(--fs-small);
}
.skip-link:focus { left: 12px; top: 12px; }

:focus-visible {
  outline: 2px solid var(--wine-600);
  outline-offset: 3px;
  border-radius: 2px;
}
.on-dark :focus-visible { outline-color: var(--gold-300); }

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

@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;
  }
  .reveal-ready .reveal { opacity: 1 !important; transform: none !important; }
}

/* --------------------------------------------------------------------------
   3. 布局
   -------------------------------------------------------------------------- */
.wrap {
  width: 100%;
  max-width: var(--wrap);
  margin-inline: auto;
  padding-inline: var(--gutter);
}
.wrap-wide { max-width: var(--wrap-wide); }

.sec { padding-block: var(--sec-y); }
.sec-tight { padding-block: clamp(52px, 6vw, 88px); }
.sec-alt { background: var(--bg-alt); }
.sec-hair { border-top: 1px solid var(--line); }

.sec-head { max-width: 760px; margin-bottom: clamp(36px, 4.4vw, 64px); }
.sec-head.is-center { margin-inline: auto; text-align: center; }

.eyebrow {
  margin: 0 0 18px;
  font-size: var(--fs-label);
  letter-spacing: var(--ls-label);
  text-transform: uppercase;
  font-weight: 600;
  /* 浅底上不使用金色：对比度不足 */
  color: var(--wine-600);
}
.eyebrow .num {
  color: var(--ink-400);
  font-weight: 500;
  margin-right: 10px;
}

.sec-title { font-size: var(--fs-h2); margin-bottom: 20px; }

.sec-lead {
  font-size: var(--fs-lead);
  line-height: 1.8;
  color: var(--ink-700);
  max-width: 62ch;
}

.rule-gold {
  width: 56px;
  height: 2px;
  background: var(--gold-400);
  margin: 26px 0;
}
.sec-head.is-center .rule-gold { margin-inline: auto; }

.grid-2 { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: clamp(24px, 3vw, 48px); }
.grid-3 { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: clamp(24px, 3vw, 44px); }

/* 深色区块：金色在此处合法 */
.on-dark { background: var(--wine-800); color: var(--on-dark); }
.on-dark h1, .on-dark h2, .on-dark h3 { color: var(--cream-50); }
.on-dark .eyebrow { color: var(--gold-300); }
.on-dark .eyebrow .num { color: var(--gold-500); }
.on-dark .sec-lead,
.on-dark p { color: var(--on-dark); }
.on-dark .muted { color: var(--on-dark-muted); }

.muted { color: var(--text-muted); }
.small { font-size: var(--fs-small); }

.note {
  font-size: var(--fs-small);
  line-height: 1.75;
  color: var(--ink-500);
}
.note-box {
  border-left: 2px solid var(--line-gold);
  padding: 14px 0 14px 20px;
  background: linear-gradient(90deg, rgba(201, 169, 97, .07), transparent 70%);
}
.on-dark .note-box {
  border-left-color: var(--gold-500);
  background: linear-gradient(90deg, rgba(201, 169, 97, .12), transparent 70%);
}

/* 滚动淡入（仅在 JS 可用时启用，避免脚本失败导致内容不可见） */
.reveal-ready .reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity var(--dur) var(--ease), transform var(--dur) var(--ease);
}
.reveal-ready .reveal.is-in { opacity: 1; transform: none; }

/* --------------------------------------------------------------------------
   4. 头部与导航
   -------------------------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 60;
  background: transparent;
  border-bottom: 1px solid transparent;
  transition: background .3s var(--ease), border-color .3s var(--ease), box-shadow .3s var(--ease);
}
.site-header.is-scrolled {
  background: rgba(255, 249, 239, .94);
  -webkit-backdrop-filter: saturate(140%) blur(12px);
  backdrop-filter: saturate(140%) blur(12px);
  border-bottom-color: var(--line-soft);
  box-shadow: 0 1px 20px -12px rgba(28, 24, 21, .4);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 76px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: inherit;
  text-decoration: none;
  flex: none;
}
.brand:hover { text-decoration: none; }

/* TOP Logo（素材包 M1）。保持原色与比例，未重画、未重描。
   透明底版本由 JPG 原件的白底键出，Logo 图形本身的颜色与几何均未改动。 */
.brand-logo {
  flex: none;
  width: 42px;
  height: 42px;
  display: block;
  object-fit: contain;
}
.brand-text { display: flex; flex-direction: column; line-height: 1.15; }
.brand-text strong { font-family: var(--font-display); font-size: 19px; font-weight: 600; letter-spacing: .04em; color: var(--ink-900); }
.brand-text em {
  font-style: normal;
  font-size: 10px;
  letter-spacing: .22em;
  color: var(--ink-400);
  text-transform: uppercase;
}

.nav { display: flex; align-items: center; gap: clamp(20px, 2.6vw, 38px); }
.nav ul { display: flex; align-items: center; gap: clamp(20px, 2.6vw, 38px); }

/* 注意：这里的链接样式只作用于导航列表（.nav ul a），不要写成 .nav a。
   .nav a 的选择器权重高于 .btn-solid，会把 CTA 按钮的文字覆盖成深色、
   并给按钮底部加上一条下划线，导致酒红底上看不清。 */
.nav ul a {
  position: relative;
  font-size: 15px;
  color: var(--ink-700);
  letter-spacing: .04em;
  padding-block: 6px;
  text-decoration: none;
}
.nav ul a::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: 0;
  height: 1px;
  background: var(--wine-700);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .32s var(--ease);
}
.nav ul a:hover::after,
.nav ul a[aria-current="page"]::after { transform: scaleX(1); }
.nav ul a:hover { color: var(--wine-700); text-decoration: none; }
.nav ul a[aria-current="page"] { color: var(--wine-700); font-weight: 500; }

/* 导航内的 CTA 保持按钮自身的配色：酒红底 + 米白字 */
.nav .btn-solid,
.nav .btn-solid:hover,
.nav .btn-solid:focus-visible { color: var(--cream-50); }

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  padding: 0;
  background: none;
  border: 1px solid var(--line);
  border-radius: 2px;
  cursor: pointer;
}
.nav-toggle span {
  display: block;
  width: 18px;
  height: 1.5px;
  margin: 4px auto;
  background: var(--ink-800);
  transition: transform .3s var(--ease), opacity .3s var(--ease);
}
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(5.5px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { transform: translateY(-5.5px) rotate(-45deg); }

/* --------------------------------------------------------------------------
   5. 按钮
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 15px 28px;
  font-size: 15px;
  font-weight: 500;
  letter-spacing: .06em;
  border-radius: 2px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background .28s var(--ease), color .28s var(--ease), border-color .28s var(--ease), transform .28s var(--ease);
  text-decoration: none;
}
.btn:hover { text-decoration: none; transform: translateY(-1px); }

.btn-solid { background: var(--wine-700); color: var(--cream-50); }
.btn-solid:hover { background: var(--wine-800); color: var(--cream-50); }

.btn-ghost { border-color: var(--line); color: var(--ink-900); background: transparent; }
.btn-ghost:hover { border-color: var(--wine-700); color: var(--wine-700); }

.btn-sm { padding: 11px 20px; font-size: 14px; }

.arrow { display: inline-block; transition: transform .28s var(--ease); }
.btn:hover .arrow { transform: translateX(4px); }

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 15px;
  font-weight: 500;
  color: var(--wine-700);
  border-bottom: 1px solid var(--line-gold);
  padding-bottom: 3px;
}
.text-link:hover { text-decoration: none; border-bottom-color: var(--wine-700); }
.on-dark .text-link { color: var(--gold-300); border-bottom-color: rgba(223, 199, 150, .45); }
.on-dark .text-link:hover { border-bottom-color: var(--gold-300); }

/* --------------------------------------------------------------------------
   6. 首屏
   -------------------------------------------------------------------------- */
.hero { position: relative; background: var(--bg-alt); overflow: hidden; }
.hero::after {
  content: "";
  position: absolute;
  inset-inline: 0;
  bottom: 0;
  height: 1px;
  background: var(--line-soft);
}

/* 首屏改为单栏编辑式排版：文案与数字在上，实景横幅在下。
   原因：现有团队合影是 1080×530 的横幅比例，放进原来的 4:5 大图位只能放大，
   按交接说明不得插值放大，因此改用横幅版位，图片按原尺寸上限展示。 */
.hero-head {
  max-width: 880px;
  padding-block: clamp(60px, 7.6vw, 106px) 0;
}

.hero-h1 {
  font-size: var(--fs-h1);
  line-height: 1.14;
  letter-spacing: -.015em;
  margin-bottom: 0;
}
.hero-h1 .h1-sub {
  display: block;
  font-size: clamp(1.05rem, 1.9vw, 1.62rem);
  letter-spacing: .05em;
  color: var(--wine-700);
  margin-top: 20px;
  font-weight: 500;
}

.hero-lead {
  margin-top: 28px;
  font-size: var(--fs-lead);
  line-height: 1.82;
  color: var(--ink-700);
  max-width: 46ch;
}

.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 38px; }

/* 数字条 */
.stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border-top: 1px solid var(--line);
  padding-top: clamp(28px, 3vw, 40px);
  margin-top: clamp(48px, 5.5vw, 76px);
}
.stat { padding-inline: clamp(16px, 2.4vw, 34px); border-left: 1px solid var(--line); }
.stat:first-child { padding-left: 0; border-left: 0; }
.stat-num {
  font-family: var(--font-display);
  font-size: clamp(1.9rem, 3.4vw, 2.9rem);
  line-height: 1;
  color: var(--wine-700);
  letter-spacing: -.02em;
}
.stat-num .unit { font-size: .48em; margin-left: 4px; letter-spacing: 0; }
.stat-name { margin-top: 12px; font-size: 15px; font-weight: 500; color: var(--ink-800); }
.stat-meta { margin-top: 6px; font-size: 12.5px; color: var(--ink-400); line-height: 1.6; }

.on-dark .stat { border-left-color: var(--line-on-dark); }
.on-dark .stat-num { color: var(--gold-300); }
.on-dark .stat-name { color: var(--cream-50); }
.on-dark .stat-meta { color: var(--on-dark-muted); }

/* --------------------------------------------------------------------------
   7. 内页头
   -------------------------------------------------------------------------- */
.page-hero { background: var(--bg-alt); border-bottom: 1px solid var(--line-soft); }
.page-hero-inner { padding-block: clamp(56px, 6.5vw, 96px) clamp(48px, 5.5vw, 78px); max-width: 860px; }
.page-hero h1 { font-size: clamp(2rem, 3.9vw, 3.2rem); margin-bottom: 22px; }
.page-hero .sec-lead { max-width: 58ch; }

.crumbs { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; font-size: 13px; color: var(--ink-400); margin-bottom: 22px; }
.crumbs a { color: var(--ink-500); }
.crumbs span[aria-hidden] { color: var(--cream-300); }

/* --------------------------------------------------------------------------
   8. 服务列表（编辑式行，非卡片，避免全站同质化）
   -------------------------------------------------------------------------- */
.svc-list { border-top: 1px solid var(--line); }
.svc-row {
  display: grid;
  grid-template-columns: 76px minmax(0, .82fr) minmax(0, 1.18fr);
  gap: clamp(20px, 3vw, 52px);
  align-items: start;
  padding-block: clamp(30px, 3.6vw, 48px);
  border-bottom: 1px solid var(--line);
  transition: background .3s var(--ease);
}
.svc-row:hover { background: rgba(247, 242, 233, .75); }
.svc-no {
  font-family: var(--font-display);
  font-size: 30px;
  line-height: 1;
  color: var(--cream-300);
  letter-spacing: -.02em;
}
.svc-name { font-size: var(--fs-h3); margin-bottom: 10px; }
.svc-tag {
  display: inline-block;
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--wine-600);
  border: 1px solid var(--line-gold);
  border-radius: 2px;
  padding: 3px 9px;
  margin-bottom: 14px;
}
.svc-desc { color: var(--ink-700); line-height: 1.85; }
.svc-scope { margin-top: 18px; display: grid; gap: 9px; }
.svc-scope li {
  position: relative;
  padding-left: 18px;
  font-size: 15px;
  line-height: 1.7;
  color: var(--ink-700);
}
.svc-scope li::before {
  content: "";
  position: absolute;
  left: 0; top: .72em;
  width: 7px; height: 1px;
  background: var(--gold-500);
}

.on-dark .svc-list { border-top-color: var(--line-on-dark); }
.on-dark .svc-row { border-bottom-color: var(--line-on-dark); }
.on-dark .svc-row:hover { background: rgba(255, 249, 239, .04); }
.on-dark .svc-no { color: rgba(255, 249, 239, .28); }
.on-dark .svc-desc,
.on-dark .svc-scope li { color: var(--on-dark); }

/* --------------------------------------------------------------------------
   9. 案例
   -------------------------------------------------------------------------- */
.case-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: clamp(26px, 3.4vw, 52px); }
.case-card {
  display: block;
  color: inherit;
  text-decoration: none;
  border-top: 1px solid var(--line);
  padding-top: 22px;
}
.case-card:hover { text-decoration: none; }
.case-card:hover .case-title { color: var(--wine-700); }
.case-meta { display: flex; flex-wrap: wrap; gap: 8px 16px; font-size: 12.5px; letter-spacing: .06em; color: var(--ink-400); margin-bottom: 12px; }
.case-title { font-size: var(--fs-h3); margin-bottom: 10px; transition: color .3s var(--ease); }
.case-desc { color: var(--ink-700); font-size: 15.5px; line-height: 1.8; }

.field-list { display: grid; gap: 0; border-top: 1px solid var(--line); margin-top: 20px; }
.field-row { display: grid; grid-template-columns: 104px minmax(0, 1fr); gap: 18px; padding-block: 15px; border-bottom: 1px solid var(--line-soft); }
.field-key { font-size: 13px; color: var(--ink-400); letter-spacing: .05em; }
.field-val { font-size: 15.5px; color: var(--ink-700); }

/* --------------------------------------------------------------------------
   10. 团队
   -------------------------------------------------------------------------- */
/* --------------------------------------------------------------------------
   10. 真实照片（按原图尺寸设上限，不做插值放大）
   -------------------------------------------------------------------------- */
.photo { margin: 0; }
.photo img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: var(--r-sm);
  background: var(--cream-200);
}
.photo figcaption {
  margin-top: 12px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--ink-500);
  max-width: 80ch;
}
/* 团队合影原图宽 1080px、办公照宽 653px，版位宽度卡在原始宽度以内 */
.photo-wide { max-width: 1080px; margin-inline: auto; }
.photo-small { max-width: 460px; }

/* --------------------------------------------------------------------------
   11. 案例视觉：以已确认的结果指标为主体
   不使用未获授权的客户海报（海报含地点线索、人物画面与平台标识）
   -------------------------------------------------------------------------- */
.case-visual {
  position: relative;
  aspect-ratio: 16 / 10;
  display: grid;
  place-content: center;
  gap: 14px;
  padding: 30px;
  margin-bottom: 22px;
  text-align: center;
  border-radius: var(--r-sm);
  overflow: hidden;
  background:
    radial-gradient(120% 130% at 12% 108%, rgba(214, 176, 107, .30) 0%, rgba(214, 176, 107, 0) 58%),
    linear-gradient(146deg, var(--wine-700) 0%, var(--wine-900) 100%);
}
.case-visual .k {
  font-size: 12px;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--gold-300);
}
.case-visual .n {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4.6vw, 3.2rem);
  line-height: 1.05;
  color: var(--cream-50);
  letter-spacing: -.01em;
}
.case-visual .n .unit { font-size: .46em; margin-left: 3px; }
.case-visual .d {
  font-size: 13.5px;
  line-height: 1.6;
  color: rgba(255, 249, 239, .76);
  max-width: 26ch;
  margin-inline: auto;
}

/* 指标网格（1px 描边分隔） */
.metrics {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(148px, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--r-sm);
  overflow: hidden;
  margin-top: 24px;
}
.metric { background: var(--cream-50); padding: 22px 20px; }
.metric-n {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 2.6vw, 2.1rem);
  line-height: 1;
  color: var(--wine-700);
  letter-spacing: -.01em;
}
.metric-n .unit { font-size: .5em; margin-left: 2px; }
.metric-l { margin-top: 12px; font-size: 13.5px; line-height: 1.6; color: var(--ink-500); }
.sec-alt .metric { background: var(--cream-100); }

/* 客户反馈引用块 */
.quote-panel {
  margin-top: 28px;
  padding: clamp(24px, 3vw, 38px);
  border-radius: var(--r-sm);
  background:
    radial-gradient(120% 130% at 100% 0%, rgba(214, 176, 107, .24) 0%, rgba(214, 176, 107, 0) 60%),
    linear-gradient(146deg, var(--wine-700) 0%, var(--wine-900) 100%);
  color: var(--cream-50);
}
.quote-panel p {
  font-family: var(--font-display);
  font-size: clamp(1.15rem, 2.2vw, 1.6rem);
  line-height: 1.5;
  color: var(--cream-50);
}
.quote-panel cite {
  display: block;
  margin-top: 14px;
  font-style: normal;
  font-size: 13px;
  line-height: 1.6;
  color: rgba(255, 249, 239, .74);
}

/* --------------------------------------------------------------------------
   12. 制作待办标记
   仅存在于非公开预览，用于标出尚未确认的事实。对外发布前必须全部移除，
   清单见 ASSETS-TODO.md 与 README「上线前检查」。
   -------------------------------------------------------------------------- */
.todo {
  display: block;
  margin-top: 16px;
  padding: 12px 16px;
  border-left: 2px solid var(--gold-400);
  border-radius: 0 var(--r-sm) var(--r-sm) 0;
  background: rgba(214, 176, 107, .14);
  font-size: 13px;
  line-height: 1.72;
  color: var(--ink-700);
}
.todo b { color: var(--wine-700); font-weight: 600; }
.on-dark .todo { background: rgba(214, 176, 107, .14); color: var(--on-dark); }
.on-dark .todo b { color: var(--gold-300); }

/* --------------------------------------------------------------------------
   13. 平台认可与荣誉（榜单/资质卡片）
   卡片图是官方榜单海报的裁剪段，只保留"平台标识 + 认定内容"部分，
   不使用整张长海报缩小，避免文字不可读。
   -------------------------------------------------------------------------- */
/* 用 auto-fill 而不是 auto-fit：三张卡在窄屏折行时不会被拉伸到整行宽度 */
.award-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: clamp(20px, 2.4vw, 32px);
}
.award-card {
  display: flex;
  flex-direction: column;
  border: 1px solid var(--line);
  border-radius: var(--r-sm);
  background: var(--cream-50);
  overflow: hidden;
  transition: border-color .3s var(--ease), transform .3s var(--ease), box-shadow .3s var(--ease);
}
.award-card:hover {
  border-color: var(--line-gold);
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}
.award-shot {
  background: var(--cream-100);
  border-bottom: 1px solid var(--line-soft);
  /* 与素材实际比例一致（800×1404）。这里用 contain 而不是 cover：
     即便以后换上来比例不同的图，也只会留白，不会被裁掉内容。 */
  aspect-ratio: 800 / 1404;
}
.award-shot img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
}
.award-body { padding: clamp(18px, 2vw, 24px); display: flex; flex-direction: column; flex: 1; }
.award-platform {
  align-self: flex-start;
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--wine-600);
  border: 1px solid var(--line-gold);
  border-radius: 2px;
  padding: 3px 9px;
  margin-bottom: 14px;
}
.award-title { font-size: 1.05rem; line-height: 1.55; }
.award-meta {
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid var(--line-soft);
  font-size: 13px;
  line-height: 1.7;
  color: var(--ink-500);
  margin-top: auto;
}

/* 品牌墙：原图 2384×1824，展示宽度随容器（约 1260px），1.27x 内不变形 */
.brand-wall { margin: 0; }
.brand-wall img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: var(--r-sm);
  background: var(--cream-200);
}
.brand-wall figcaption {
  margin-top: 14px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--ink-500);
}

.fact-list { display: grid; gap: 0; border-top: 1px solid var(--line); }
.fact { display: grid; grid-template-columns: 96px minmax(0, 1fr); gap: 20px; padding-block: 18px; border-bottom: 1px solid var(--line-soft); }
.fact-k { font-size: 13px; color: var(--ink-400); letter-spacing: .05em; }
.fact-v { font-size: 15.5px; color: var(--ink-700); line-height: 1.75; }

/* 悬浮提示条 */
.notice {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  padding: 18px 22px;
  border: 1px solid var(--line-gold);
  border-radius: var(--r-sm);
  background: rgba(214, 176, 107, .13);
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--ink-700);
}
.notice .dot {
  flex: none;
  width: 7px; height: 7px;
  margin-top: .62em;
  background: var(--wine-600);
  border-radius: 50%;
}
.on-dark .notice {
  background: rgba(214, 176, 107, .10);
  border-color: rgba(228, 200, 143, .34);
  color: var(--on-dark);
}

/* --------------------------------------------------------------------------
   12. 联系
   -------------------------------------------------------------------------- */
.contact-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: clamp(34px, 5vw, 76px); align-items: start; }

.mail-slot {
  border: 1px solid var(--line);
  border-radius: var(--r-sm);
  padding: 24px 26px;
  background: var(--cream-50);
}
.mail-slot .k { font-size: 12.5px; letter-spacing: .14em; text-transform: uppercase; color: var(--ink-400); }
.mail-slot .v {
  margin-top: 10px;
  font-size: clamp(1.05rem, 1.9vw, 1.35rem);
  font-family: var(--font-display);
  color: var(--ink-900);
  letter-spacing: .02em;
  word-break: break-all;
}
.mail-slot .actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 18px; }

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

.copy-state { font-size: 13px; color: var(--wine-700); align-self: center; }

/* 收尾行动区：默认浅底（避免与上方深色区块和页脚连成一片重色） */
.contact-band { background: var(--bg-alt); border-top: 1px solid var(--line); }
.contact-band .big {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 3.6vw, 2.9rem);
  line-height: 1.35;
  color: var(--ink-900);
  max-width: 22ch;
}
.contact-band .big em { font-style: normal; color: var(--wine-700); }
.contact-band.is-dark { background: var(--wine-800); border-top: 0; }
.contact-band.is-dark .big { color: var(--cream-50); }
.contact-band.is-dark .big em { color: var(--gold-300); }
.band-inner { display: flex; flex-wrap: wrap; gap: 34px; align-items: flex-end; justify-content: space-between; padding-block: clamp(56px, 6.6vw, 96px); }
.band-sub { margin-top: 18px; font-size: 15px; line-height: 1.8; color: var(--ink-500); max-width: 44ch; }

/* --------------------------------------------------------------------------
   13. 时间线（公司经历 / 案例执行）
   -------------------------------------------------------------------------- */
.timeline { border-top: 1px solid var(--line); }
.tl-item { display: grid; grid-template-columns: 132px minmax(0, 1fr); gap: clamp(20px, 3vw, 44px); padding-block: 26px; border-bottom: 1px solid var(--line-soft); }
.tl-time { font-size: 13.5px; letter-spacing: .06em; color: var(--ink-400); padding-top: 4px; }
.tl-body h3 { font-size: 1.1rem; margin-bottom: 8px; }
.tl-body p { font-size: 15.5px; color: var(--ink-700); }

/* --------------------------------------------------------------------------
   14. 页脚
   -------------------------------------------------------------------------- */
.site-footer { background: var(--ink-900); color: var(--on-dark-muted); padding-top: clamp(56px, 6.4vw, 92px); }
.site-footer h1, .site-footer h2, .site-footer h3, .site-footer strong { color: var(--cream-50); }
.site-footer a { color: var(--on-dark-muted); }
.site-footer a:hover { color: var(--cream-50); }

.footer-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) repeat(2, minmax(0, 1fr));
  gap: clamp(32px, 4.4vw, 72px);
  padding-bottom: clamp(40px, 5vw, 66px);
}
.footer-brand .brand-text strong { color: var(--cream-50); }
.footer-brand .brand-text em { color: rgba(255, 249, 239, .42); }
.footer-about { margin-top: 20px; font-size: 14.5px; line-height: 1.85; max-width: 34ch; }

.footer-col h3 { font-family: var(--font-sans); font-size: 12.5px; letter-spacing: var(--ls-label); text-transform: uppercase; color: rgba(255, 249, 239, .48); font-weight: 600; margin-bottom: 18px; }
.footer-col ul { display: grid; gap: 11px; font-size: 15px; }
.footer-col a { text-decoration: none; }

.footer-bottom {
  border-top: 1px solid rgba(255, 249, 239, .12);
  padding-block: 26px 32px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px 32px;
  justify-content: space-between;
  font-size: 13px;
  line-height: 1.7;
}
/* 预览标记：仅用于防止未批准内容被误当作正式站。对外发布前必须删除本节点。 */
.preview-mark { color: rgba(255, 249, 239, .40); }

/* --------------------------------------------------------------------------
   15. 404
   -------------------------------------------------------------------------- */
.err-code {
  font-family: var(--font-display);
  font-size: clamp(4.5rem, 15vw, 11rem);
  line-height: .9;
  color: var(--cream-300);
  letter-spacing: -.04em;
}
.err-inner { max-width: 640px; padding-block: clamp(80px, 11vw, 150px); }

/* --------------------------------------------------------------------------
   15b. 标签列表与案例详情布局
   -------------------------------------------------------------------------- */
.tag-list { display: flex; flex-wrap: wrap; gap: 10px; }
.tag-list li {
  padding: 8px 15px;
  border: 1px solid var(--line);
  border-radius: 2px;
  background: var(--cream-50);
  font-size: 14.5px;
  color: var(--ink-700);
}
.on-dark .tag-list li {
  background: rgba(255, 249, 239, .05);
  border-color: var(--line-on-dark);
  color: var(--on-dark);
}

.case-detail {
  display: grid;
  grid-template-columns: minmax(0, 288px) minmax(0, 1fr);
  gap: clamp(32px, 4.6vw, 72px);
  align-items: start;
}
.case-aside { position: sticky; top: 104px; }
.case-section + .case-section { margin-top: clamp(34px, 4vw, 52px); }

.block-list { display: grid; gap: 0; border-top: 1px solid var(--line); }
.block { display: grid; grid-template-columns: 168px minmax(0, 1fr); gap: clamp(18px, 2.6vw, 40px); padding-block: 20px; border-bottom: 1px solid var(--line-soft); }
.block-k { font-size: 14px; color: var(--ink-400); letter-spacing: .04em; padding-top: 3px; }
.block-v { font-size: 15.5px; line-height: 1.8; color: var(--ink-700); }
.block-v ul { display: grid; gap: 8px; }
.block-v li { position: relative; padding-left: 18px; }
.block-v li::before { content: ""; position: absolute; left: 0; top: .72em; width: 7px; height: 1px; background: var(--gold-500); }

/* --------------------------------------------------------------------------
   16. 响应式
   -------------------------------------------------------------------------- */
@media (max-width: 1024px) {
  .contact-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-brand { grid-column: 1 / -1; }
}

@media (max-width: 900px) {
  .svc-row { grid-template-columns: 56px minmax(0, 1fr); }
  /* 第三列（说明文案）在窄屏折到第二行，与标题左对齐 */
  .svc-row > *:last-child { grid-column: 2 / -1; }
  .case-grid { grid-template-columns: 1fr; }
  .case-detail { grid-template-columns: 1fr; }
  .case-aside { position: static; top: auto; }
  .block { grid-template-columns: 1fr; gap: 6px; }
}

@media (max-width: 820px) {
  .nav-toggle { display: block; }
  .nav {
    position: fixed;
    inset: 76px 0 auto 0;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: var(--cream-50);
    border-bottom: 1px solid var(--line);
    box-shadow: var(--shadow-md);
    padding: 8px var(--gutter) 28px;
    max-height: calc(100vh - 76px);
    overflow-y: auto;
  }
  .nav.is-open { display: flex; }
  .nav ul { flex-direction: column; align-items: stretch; gap: 0; }
  .nav ul li { border-bottom: 1px solid var(--line-soft); }
  /* 同上：只改导航列表项，CTA 保持按钮自身的 padding 与字号 */
  .nav ul a { display: block; padding: 16px 2px; font-size: 17px; }
  .nav ul a::after { display: none; }
  .nav-cta { margin-top: 22px; justify-content: center; color: var(--cream-50); }
}

@media (max-width: 640px) {
  :root { --fs-body: 16.5px; }
  .stats { grid-template-columns: 1fr; gap: 26px; }
  .stat { border-left: 0; padding-left: 0; padding-bottom: 22px; border-bottom: 1px solid var(--line); }
  .stat:last-child { border-bottom: 0; padding-bottom: 0; }
  .grid-2, .grid-3 { grid-template-columns: 1fr; }
  .field-row, .fact, .tl-item { grid-template-columns: 1fr; gap: 6px; }
  .hero-actions .btn { width: 100%; justify-content: center; }
  .footer-grid { grid-template-columns: 1fr; }
  .band-inner { align-items: flex-start; }
  .band-inner .btn { width: 100%; justify-content: center; }
  .tl-time { padding-top: 0; }
}

/* 打印 */
@media print {
  .site-header, .nav-toggle, .photo-wide, .site-footer { display: none; }
  body { background: #fff; }
}