/* ==========================================================================
   duyuming.cloud — design system v2
   调整：字号整体下调一档（视觉从"冲击"改为"舒适阅读"）；
   配色从纯白+科技蓝，改为暖象牙底 + 墨绿主调 + 赤陶点缀。
   目标：专业但有温度，不甜、不冷、不像模板。所有内容已脱敏。
   ========================================================================== */

:root {
  /* ---- 墨色：偏暖的黑，不用冷灰 ---- */
  --ink:        #2b2724;
  --ink-2:      #56504a;
  --ink-3:      #7d766d;
  --ink-4:      #9b948b;
  --line:       #ddd4c8;
  --line-soft:  #ebe4da;

  /* ---- 底色：暖象牙 / 浅砂 ---- */
  --bg:         #fbf8f4;
  --bg-2:       #f4eee5;
  --bg-3:       #fffdfa;
  --card:       #fffefb;

  /* ---- 深色区：深褐黑，不是纯黑 ---- */
  --bg-dark:    #2a211c;
  --bg-dark-2:  #362b24;

  /* ---- 强调色：赤陶橙为主，深焦糖为辅 ---- */
  --accent:      #c25a34;
  --accent-ink:  #a8482a;
  --accent-soft: rgba(194, 90, 52, 0.1);
  --warm:        #b08240;
  --warm-ink:    #8f6829;
  --warm-soft:   rgba(176, 130, 64, 0.13);

  --radius-s:   10px;
  --radius-m:   16px;
  --radius-l:   22px;

  --max:        1000px;
  --max-text:   680px;

  --ease:       cubic-bezier(0.25, 0.1, 0.25, 1);
  --ease-out:   cubic-bezier(0.16, 1, 0.3, 1);
}

* { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 64px;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text",
    "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.75;
  letter-spacing: 0.004em;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* 极淡纸纹，让暖底不显得"平"。整站唯一的装饰性纹理。 */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  opacity: 0.45;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='140' height='140'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3'/></filter><rect width='140' height='140' filter='url(%23n)' opacity='0.035'/></svg>");
}
body > * { position: relative; z-index: 1; }

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

a {
  color: var(--accent-ink);
  text-decoration: none;
  transition: opacity 0.2s var(--ease), color 0.2s var(--ease);
}
a:hover { opacity: 0.7; }

::selection { background: rgba(194, 90, 52, 0.18); }

.wrap {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 30px;
}
.wrap-text { max-width: var(--max-text); }
.wrap-narrow { max-width: 580px; }

/* --------------------------------------------------------------------------
   字号系统 —— 全线下调，阅读优先
   -------------------------------------------------------------------------- */

h1, h2, h3, h4 {
  margin: 0;
  font-weight: 600;
  letter-spacing: -0.018em;
  line-height: 1.25;
  color: var(--ink);
}

.display {
  font-size: clamp(29px, 4.2vw, 46px);
  font-weight: 700;
  letter-spacing: -0.028em;
  line-height: 1.18;
}

.title-1 {
  font-size: clamp(23px, 2.7vw, 33px);
  font-weight: 600;
  letter-spacing: -0.022em;
  line-height: 1.25;
}

.title-2 {
  font-size: clamp(18px, 1.7vw, 21px);
  font-weight: 600;
  letter-spacing: -0.014em;
  line-height: 1.35;
}

/* hero 关键词下的手绘感高亮，制造"活人感" */
.mark {
  position: relative;
  white-space: nowrap;
}
.mark::after {
  content: "";
  position: absolute;
  left: -1px; right: -1px;
  bottom: 0.04em;
  height: 0.34em;
  background: var(--warm-soft);
  border-radius: 2px;
  z-index: -1;
}

.eyebrow {
  margin: 0 0 18px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent-ink);
}

.lede {
  font-size: clamp(15.5px, 1.3vw, 17.5px);
  line-height: 1.7;
  color: var(--ink-2);
  letter-spacing: -0.004em;
}

.quiet { font-size: 13px; line-height: 1.65; color: var(--ink-4); }

/* --------------------------------------------------------------------------
   导航
   -------------------------------------------------------------------------- */

.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  height: 50px;
  background: rgba(251, 248, 244, 0.82);
  backdrop-filter: saturate(180%) blur(18px);
  -webkit-backdrop-filter: saturate(180%) blur(18px);
  border-bottom: 1px solid rgba(43, 39, 36, 0.07);
}

.nav-inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 30px;
  height: 100%;
  display: flex;
  align-items: center;
  gap: 30px;
}

.brand {
  font-size: 15px;
  font-weight: 600;
  color: var(--ink);
  letter-spacing: -0.01em;
  flex-shrink: 0;
}
.brand:hover { opacity: 1; }

.nav-links {
  display: flex;
  gap: 26px;
  margin-left: auto;
  overflow-x: auto;
  scrollbar-width: none;
}
.nav-links::-webkit-scrollbar { display: none; }

.nav-links a {
  font-size: 13px;
  color: var(--ink-2);
  white-space: nowrap;
  letter-spacing: 0;
  padding: 2px 0;
  border-bottom: 1.5px solid transparent;
  transition: border-color 0.22s var(--ease), color 0.22s var(--ease);
}
.nav-links a:hover {
  color: var(--ink);
  opacity: 1;
  border-bottom-color: var(--warm);
}

/* --------------------------------------------------------------------------
   按钮
   -------------------------------------------------------------------------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 11px 22px;
  border-radius: 100px;
  border: 1px solid transparent;
  font-size: 14.5px;
  font-weight: 500;
  letter-spacing: -0.006em;
  cursor: pointer;
  transition: transform 0.24s var(--ease-out), background 0.24s var(--ease),
    border-color 0.24s var(--ease), box-shadow 0.24s var(--ease);
  font-family: inherit;
}
.btn:hover { opacity: 1; transform: translateY(-1px); }
.btn:active { transform: translateY(0); }

.btn-primary {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 6px 18px -8px rgba(194, 90, 52, 0.5);
}
.btn-primary:hover { background: #d0673f; box-shadow: 0 10px 24px -10px rgba(194, 90, 52, 0.58); }

.btn-secondary {
  border-color: var(--line);
  color: var(--ink);
  background: transparent;
}
.btn-secondary:hover { border-color: var(--warm); color: var(--warm-ink); }

.cta-row {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  align-items: center;
}

/* --------------------------------------------------------------------------
   HERO
   -------------------------------------------------------------------------- */

.hero {
  position: relative;
  padding: 82px 0 74px;
  overflow: hidden;
}

/* 暖色光斑，替换原来的蓝紫 */
.hero::before,
.hero::after {
  content: "";
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
  filter: blur(80px);
}
.hero::before {
  width: 560px; height: 560px;
  top: -260px; right: -140px;
  background: radial-gradient(circle, rgba(194, 90, 52, 0.16), transparent 68%);
}
.hero::after {
  width: 420px; height: 420px;
  bottom: -220px; left: -130px;
  background: radial-gradient(circle, rgba(176, 130, 64, 0.16), transparent 68%);
}

.hero .wrap { position: relative; z-index: 1; }

/* 首屏两栏：左文案 右示意图 */
.hero-grid {
  display: grid;
  grid-template-columns: 1.08fr 0.92fr;
  gap: 48px;
  align-items: center;
  margin-bottom: 52px;
}
.hero-copy { min-width: 0; }
.hero-art { min-width: 0; }
.hero-art svg {
  width: 100%;
  height: auto;
  max-width: 360px;
  margin-left: auto;
  display: block;
  overflow: visible;
}
.hero-art text {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC",
    "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
}

.hero .display { margin-bottom: 22px; }
.hero .lede { margin: 0 0 32px; max-width: 33em; }

.hero-cta { margin-bottom: 0; }

/* 首屏数据条 */
.stat-strip {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 1px;
  background: var(--line-soft);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-m);
  overflow: hidden;
}

.stat {
  background: var(--card);
  padding: 20px 20px;
}
.stat-num {
  display: block;
  font-size: 25px;
  font-weight: 600;
  letter-spacing: -0.024em;
  line-height: 1.15;
  color: var(--accent-ink);
  margin-bottom: 4px;
}
.stat-label {
  font-size: 12.5px;
  color: var(--ink-3);
  line-height: 1.5;
}

/* --------------------------------------------------------------------------
   Section 通用
   -------------------------------------------------------------------------- */

.sec { padding: 82px 0; }
.sec-alt { background: var(--bg-2); }

.sec-head { margin-bottom: 42px; max-width: var(--max-text); }
.sec-head .title-1 { margin-bottom: 14px; }
.sec-head .lede { margin: 0; }

/* 宽容器里的长文本单独限宽：左边缘与上下模块对齐，行长仍保持可读 */
.sec > .wrap > .prose,
.sec > .wrap > .metric-row,
.sec > .wrap > .eyebrow,
.sec > .wrap > .title-1 { max-width: var(--max-text); }

.sec p { color: var(--ink-2); }
.sec strong { color: var(--ink); font-weight: 600; }

.prose > p { margin: 0 0 18px; font-size: 15.5px; line-height: 1.8; }
.prose > p:last-child { margin-bottom: 0; }

.note {
  margin: 22px 0 0;
  padding: 15px 18px 15px 20px;
  background: var(--warm-soft);
  border-left: 2.5px solid var(--warm);
  border-radius: 0 var(--radius-s) var(--radius-s) 0;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--ink-2);
}
.note strong { color: var(--ink); }

/* --------------------------------------------------------------------------
   能力卡片
   -------------------------------------------------------------------------- */

.grid-3 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(264px, 1fr));
  gap: 16px;
}

.card {
  background: var(--card);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-m);
  padding: 26px 24px;
  transition: transform 0.34s var(--ease-out), box-shadow 0.34s var(--ease-out),
    border-color 0.34s var(--ease);
}
.card:hover {
  transform: translateY(-3px);
  box-shadow: 0 16px 34px -18px rgba(43, 39, 36, 0.18);
  border-color: var(--line);
}

.card-icon {
  width: 36px; height: 36px;
  border-radius: 10px;
  background: var(--accent-soft);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
  color: var(--accent-ink);
}
.card-icon svg { width: 18px; height: 18px; }

/* 交替点缀色，避免六张卡一个调子 */
.card:nth-child(2) .card-icon,
.card:nth-child(4) .card-icon,
.card:nth-child(6) .card-icon {
  background: var(--warm-soft);
  color: var(--warm-ink);
}

.card h3 { font-size: 16px; margin-bottom: 8px; letter-spacing: -0.012em; }
.card p  { margin: 0; font-size: 14.5px; line-height: 1.72; color: var(--ink-3); }

/* --------------------------------------------------------------------------
   作品
   -------------------------------------------------------------------------- */

.work-list { display: flex; flex-direction: column; gap: 18px; }

.work {
  background: var(--card);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-l);
  padding: 34px 36px 32px;
  transition: box-shadow 0.34s var(--ease-out), border-color 0.34s var(--ease);
}
.work:hover {
  box-shadow: 0 20px 44px -24px rgba(43, 39, 36, 0.2);
  border-color: var(--line);
}

.tag-row { display: flex; gap: 7px; flex-wrap: wrap; margin-bottom: 16px; }

.tag {
  font-size: 11.5px;
  font-weight: 500;
  letter-spacing: 0.01em;
  padding: 4px 10px;
  border-radius: 100px;
  background: var(--bg-2);
  color: var(--ink-3);
  white-space: nowrap;
}
.tag-accent { background: var(--accent-soft); color: var(--accent-ink); }

.work h3 { margin-bottom: 16px; }
.work .prose { max-width: var(--max-text); }

/* 锚点链接：悬停才显，不干扰阅读 */
.anchor {
  margin-left: 8px;
  font-size: 0.72em;
  font-weight: 400;
  color: var(--ink-4);
  opacity: 0;
  transition: opacity 0.2s var(--ease);
  vertical-align: 0.06em;
}
h3:hover .anchor, .anchor:focus { opacity: 1; }
.anchor:hover { color: var(--accent); opacity: 1; }

/* 展开更多细节 */
.more {
  margin-top: 22px;
  border-top: 1px solid var(--line-soft);
  padding-top: 4px;
}
.more > summary {
  cursor: pointer;
  list-style: none;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 12px 0 10px;
  font-size: 14px;
  font-weight: 500;
  color: var(--accent-ink);
  transition: color 0.2s var(--ease);
}
.more > summary::-webkit-details-marker { display: none; }
.more > summary::after {
  content: "";
  width: 7px; height: 7px;
  border-right: 1.6px solid currentColor;
  border-bottom: 1.6px solid currentColor;
  transform: rotate(45deg) translateY(-1px);
  transition: transform 0.25s var(--ease-out);
}
.more[open] > summary::after { transform: rotate(-135deg) translateY(-1px); }
.more > summary:hover { color: var(--accent); }

.more-body {
  padding: 6px 0 6px;
  max-width: var(--max-text);
}
.more-body h4 {
  margin: 22px 0 8px;
  font-size: 14.5px;
  font-weight: 600;
  letter-spacing: -0.008em;
  color: var(--ink);
}
.more-body h4:first-child { margin-top: 6px; }
.more-body p {
  margin: 0 0 14px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink-2);
}
.more-body p:last-child { margin-bottom: 0; }
.more-body ul {
  margin: 0 0 14px;
  padding-left: 0;
  list-style: none;
}
.more-body li {
  position: relative;
  padding-left: 17px;
  margin-bottom: 8px;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--ink-2);
}
.more-body li::before {
  content: "";
  position: absolute;
  left: 2px; top: 10px;
  width: 4px; height: 4px;
  border-radius: 50%;
  background: var(--warm);
}
.more-body li strong { color: var(--ink); font-weight: 600; }

/* 问题→判断 对照块 */
.qa-block {
  margin: 0 0 16px;
  padding: 15px 18px;
  background: var(--bg-2);
  border-radius: var(--radius-s);
}
.qa-block .q {
  margin: 0 0 7px;
  font-size: 13.5px;
  font-weight: 600;
  color: var(--ink);
}
.qa-block .a {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--ink-2);
}

.sec-dark .more { border-top-color: rgba(255,255,255,0.1); }
.sec-dark .more > summary { color: #e79a6b; }
.sec-dark .more-body h4 { color: #fdfbf7; }
.sec-dark .more-body p,
.sec-dark .more-body li { color: #b5aca2; }
.sec-dark .more-body li strong { color: #fdfbf7; }
.sec-dark .qa-block {
  background: rgba(255,255,255,0.05);
}
.sec-dark .qa-block .q { color: #fdfbf7; }
.sec-dark .qa-block .a { color: #b5aca2; }

/* --------------------------------------------------------------------------
   深色复盘区 —— 墨绿黑
   -------------------------------------------------------------------------- */

.sec-dark {
  background: var(--bg-dark);
  color: #f2efe9;
  position: relative;
  overflow: hidden;
}
.sec-dark::before {
  content: "";
  position: absolute;
  width: 640px; height: 640px;
  top: -320px; left: 50%;
  transform: translateX(-50%);
  background: radial-gradient(circle, rgba(212, 132, 78, 0.22), transparent 66%);
  filter: blur(70px);
  pointer-events: none;
}
.sec-dark .wrap { position: relative; z-index: 1; }
.sec-dark h2, .sec-dark h3 { color: #fdfbf7; }
.sec-dark .eyebrow { color: #e79a6b; }
.sec-dark .lede { color: #cbc2b8; }
.sec-dark p { color: #b5aca2; }
.sec-dark strong { color: #fdfbf7; }
.sec-dark .note {
  background: rgba(255, 255, 255, 0.05);
  border-left-color: #e79a6b;
  color: #cbc2b8;
}
.sec-dark .note strong { color: #fdfbf7; }

.metric-row {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  margin: 30px 0 6px;
}
.metric {
  background: var(--bg-dark-2);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-m);
  padding: 18px 22px;
  min-width: 118px;
}
.metric-num {
  display: block;
  font-size: 27px;
  font-weight: 600;
  letter-spacing: -0.024em;
  line-height: 1.15;
  color: #fdfbf7;
}
.metric-label { font-size: 12px; color: #968b80; }
.metric-sep { color: #5c4f45; font-size: 19px; }
.metric-fail .metric-num { color: #e0a75c; }

/* --------------------------------------------------------------------------
   CRM 展示区
   -------------------------------------------------------------------------- */

.split {
  display: grid;
  grid-template-columns: 0.92fr 1.08fr;
  gap: 46px;
  align-items: center;
}

.mock {
  background: var(--card);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-m);
  box-shadow: 0 22px 50px -30px rgba(43, 39, 36, 0.26);
  overflow: hidden;
}
.mock-bar {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 10px 14px;
  background: var(--bg-2);
  border-bottom: 1px solid var(--line-soft);
}
.dot { width: 9px; height: 9px; border-radius: 50%; background: #dbcfc1; }
.mock-title { margin-left: 7px; font-size: 12px; color: var(--ink-4); }

.mock-body { padding: 6px 0; }

.row {
  display: grid;
  grid-template-columns: 1.1fr 1fr auto;
  gap: 10px;
  align-items: center;
  padding: 11px 18px;
  border-bottom: 1px solid var(--line-soft);
  font-size: 13px;
}
.row:last-child { border-bottom: none; }
.row-head {
  font-size: 11px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-4);
  background: var(--bg-3);
}
.row-name { font-weight: 500; color: var(--ink); }
.row-meta { color: var(--ink-4); font-size: 12.5px; }

.pill {
  font-size: 11.5px;
  padding: 3px 10px;
  border-radius: 100px;
  white-space: nowrap;
  justify-self: end;
}
.pill-new  { background: var(--accent-soft);         color: var(--accent-ink); }
.pill-warm { background: var(--warm-soft);           color: var(--warm-ink); }
.pill-done { background: rgba(122, 134, 116, 0.15);  color: #5b6650; }

.check-list { list-style: none; margin: 22px 0 0; padding: 0; }
.check-list li {
  position: relative;
  padding-left: 26px;
  margin-bottom: 11px;
  font-size: 14.5px;
  color: var(--ink-2);
  line-height: 1.68;
}
.check-list li::before {
  content: "";
  position: absolute;
  left: 0; top: 7px;
  width: 15px; height: 15px;
  border-radius: 50%;
  background: var(--accent);
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='3.6' stroke-linecap='round' stroke-linejoin='round'><polyline points='20 6 9 17 4 12'/></svg>");
  background-size: 10px 10px;
  background-repeat: no-repeat;
  background-position: center;
}

/* --------------------------------------------------------------------------
   图示（全部为内联 SVG，无位图、无字体依赖、无版权风险）
   -------------------------------------------------------------------------- */

.figure {
  margin: 26px 0 0;
  padding: 24px 22px 18px;
  background: var(--bg-3);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-m);
}
.figure svg {
  width: 100%;
  height: auto;
  display: block;
  overflow: visible;
}
.figure text {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC",
    "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
}
.fig-cap {
  margin: 16px 0 0;
  font-size: 12.5px;
  line-height: 1.65;
  color: var(--ink-4);
  text-align: center;
}

.fig-dark {
  background: rgba(255, 255, 255, 0.035);
  border-color: rgba(255, 255, 255, 0.08);
}
.sec-dark .fig-cap { color: #968b80; }

.fig-scroll { overflow-x: auto; scrollbar-width: thin; }
.fig-scroll > svg { min-width: 480px; }

/* 窄图（雷达图这类接近方形的）限宽居中，避免在宽屏下被拉得过大 */
.fig-narrow > svg { max-width: 420px; margin: 0 auto; }

/* --------------------------------------------------------------------------
   留资表单
   -------------------------------------------------------------------------- */

.form-card {
  background: var(--card);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-l);
  padding: 34px;
  box-shadow: 0 18px 44px -28px rgba(43, 39, 36, 0.2);
}

.form { display: flex; flex-direction: column; gap: 17px; }

.field { display: flex; flex-direction: column; gap: 7px; }
.field > span { font-size: 13.5px; font-weight: 500; color: var(--ink); }
.field-hint { font-size: 12.5px; color: var(--ink-4); font-weight: 400; font-style: normal; }

.form input,
.form select,
.form textarea {
  font: inherit;
  font-size: 15px;
  padding: 11px 14px;
  border: 1px solid var(--line);
  border-radius: 11px;
  background: #fff;
  color: var(--ink);
  width: 100%;
  transition: border-color 0.2s var(--ease), box-shadow 0.2s var(--ease);
  appearance: none;
}
.form select {
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%237d766d' stroke-width='2' stroke-linecap='round'><polyline points='6 9 12 15 18 9'/></svg>");
  background-repeat: no-repeat;
  background-position: right 13px center;
  background-size: 16px;
  padding-right: 40px;
}
.form input:focus,
.form select:focus,
.form textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3.5px rgba(194, 90, 52, 0.14);
}
.form textarea { resize: vertical; min-height: 92px; }
.form .btn { align-self: flex-start; margin-top: 3px; }

.privacy {
  margin: 0;
  font-size: 12.5px;
  color: var(--ink-4);
  line-height: 1.65;
}

.contact-alt {
  margin-top: 28px;
  padding-top: 24px;
  border-top: 1px solid var(--line-soft);
  display: flex;
  gap: 30px;
  flex-wrap: wrap;
}
.contact-item { font-size: 14px; color: var(--ink-2); }
.contact-item span {
  display: block;
  font-size: 11.5px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-4);
  margin-bottom: 4px;
}

/* --------------------------------------------------------------------------
   Footer
   -------------------------------------------------------------------------- */

.foot {
  background: var(--bg-2);
  padding: 36px 0;
  font-size: 12.5px;
  color: var(--ink-3);
  border-top: 1px solid var(--line-soft);
}
.foot p { margin: 0 0 7px; }
.foot p:last-child { margin-bottom: 0; }
.foot-top {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  padding-bottom: 16px;
  margin-bottom: 16px;
  border-bottom: 1px solid var(--line);
}
.foot-name { font-size: 13.5px; font-weight: 500; color: var(--ink); }

/* --------------------------------------------------------------------------
   进场动效
   -------------------------------------------------------------------------- */

.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.7s var(--ease-out), transform 0.7s var(--ease-out);
}
.reveal.in { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .card:hover, .btn:hover { transform: none; }
}

/* --------------------------------------------------------------------------
   响应式
   -------------------------------------------------------------------------- */

@media (max-width: 900px) {
  .split { grid-template-columns: 1fr; gap: 34px; }
  .hero-grid { grid-template-columns: 1fr; gap: 38px; }
  .hero-art svg { margin: 0 auto; max-width: 330px; }
}

@media (max-width: 640px) {
  .wrap { padding: 0 20px; }
  .nav-inner { padding: 0 20px; gap: 18px; }
  .nav-links { gap: 18px; }
  .hero { padding: 58px 0 56px; }
  .hero .lede { margin-bottom: 26px; }
  .hero-grid { margin-bottom: 38px; gap: 32px; }
  .cta-row .btn { width: 100%; }
  .sec { padding: 58px 0; }
  .sec-head { margin-bottom: 32px; }
  .work { padding: 26px 22px; border-radius: 18px; }
  .form-card { padding: 24px 20px; border-radius: 18px; }
  .stat { padding: 17px 16px; }
  .stat-num { font-size: 22px; }
  .metric-sep { display: none; }
  .metric { padding: 15px 18px; }
}