/* =========================================================
   落地引擎 · 企业官网 样式表
   视觉基准：zleo.ai「暖纸 · 墨韵」编辑风（白天 / 夜晚双版）
     白天版（朱砂白）：纸 #fbf6ea · 墨 #2a2114 · 砖红线 rgba(181 64 46/.5)
     夜晚版（墨夜金）：夜空 #142142 · 金 #d8bd78 · 金线 rgba(201 168 76/.36)
     字体：中文衬线标题 + 无衬线正文 + 等宽小标签
     1px 发丝边框、小圆角、克制阴影
     动效：cubic-bezier(.22,.61,.36,1)
   主题机制：html[data-mode="light"|"dark"]，与 zleo.ai 一致；
             默认跟随系统，用户可手动切换并记忆（localStorage）
   兼容：响应式 7 档断点 / WCAG AA / 减少动效偏好
   ========================================================= */

/* ---------------- 设计令牌 · 共用（不随主题变化） ---------------- */
:root {
  /* 字体 */
  --font-display: "Newsreader Variable", "Newsreader", "Noto Serif SC Variable", "Noto Serif SC", "Songti SC", "Source Han Serif SC", "STSong", serif;
  --font-serif: "Noto Serif SC Variable", "Noto Serif SC", "Songti SC", "Source Han Serif SC", serif;
  --font-sans: "Inter Variable", Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  /* 尺寸与节奏 */
  --maxw: 1180px;
  --radius: 6px;
  --radius-sm: 4px;
  /* 动效 */
  --motion: .2s cubic-bezier(.22, .61, .36, 1);
  --motion-slow: .55s cubic-bezier(.22, .61, .36, 1);
  /* 图表（墨块 / 夜空块上的金色柱） */
  --bar-a: #c9a84c;
  --bar-b: #8a6f2e;
}

/* ---------------- 白天版（朱砂白） ----------------
   纸为底、墨为文、砖红为线与印；
   深色区块改用「墨块 + 米白字」，与暖纸体系同源。
   令牌口径对齐 zleo.ai html[data-mode="light"] */
html[data-mode="light"] {
  /* 纸与墨 */
  --paper: #fbf6ea;
  --paper-edge: #f1e7d2;
  --paper-2: #f7f1e3;
  --paper-3: #efe5d3;
  --card: #fdfaf3;
  --ink: #2a2114;
  --ink-soft: rgba(42, 33, 20, .72);
  --ink-faint: rgba(42, 33, 20, .56);
  --muted: #7c6e5a;
  /* 发丝线 */
  --hairline: rgba(42, 33, 20, .09);
  --hairline-strong: rgba(42, 33, 20, .16);
  /* 强调：砖红 mark、砖红 rule */
  --mark: #b5402e;
  --mark-600: #97321f;
  --mark-700: #7c2919;
  --mark-soft: rgba(181, 64, 46, .10);
  --on-mark: #fffdf8;
  --seal: #b5402e;
  --seal-ink: #fbf6ea;
  --rule: rgba(181, 64, 46, .5);
  --rule-strong: rgba(181, 64, 46, .72);
  /* 纸纹与玻璃 */
  --paper-veil: rgba(42, 33, 20, .012);
  --paper-glass: rgba(251, 246, 234, .92);
  /* 阴影 */
  --shadow-sm: 0 1px 2px rgba(42, 33, 20, .05);
  --shadow-md: 0 1px 2px rgba(42, 33, 20, .05), 0 4px 24px rgba(42, 33, 20, .06);
  --shadow-lg: 0 1px 2px rgba(42, 33, 20, .06), 0 14px 40px rgba(42, 33, 20, .11);
  /* 深色区块（白天版＝墨块） */
  --night: #2a2114;
  --night-2: #241c12;
  --night-3: #3a2e20;
  --night-ink: #f4ecd9;
  --night-soft: rgba(244, 236, 217, .78);
  --night-faint: rgba(244, 236, 217, .56);
  --night-hair: rgba(255, 255, 255, .10);
  --night-hair-strong: rgba(255, 255, 255, .18);
  --night-mark: #e88064;
  --night-mark-soft: rgba(232, 128, 100, .22);
  --mark-soft-line: rgba(181, 64, 46, .24);
  --mark-shadow: rgba(181, 64, 46, .3);
  /* 表单 */
  --field: #fffdf8;
  /* 首屏 / 页头（白天版＝纸面） */
  --hero-bg-1: #fbf6ea;
  --hero-bg-2: #f4ecda;
  --hero-bg-3: #ede1c8;
  --hero-ink: #2a2114;
  --hero-soft: rgba(42, 33, 20, .74);
  --hero-faint: rgba(42, 33, 20, .56);
  --hero-hair: rgba(42, 33, 20, .10);
  --hero-hair-strong: rgba(42, 33, 20, .20);
  --hero-mark: #b5402e;
  --hero-glow: rgba(181, 64, 46, .055);
  color-scheme: light;
}

/* ---------------- 夜晚版（墨夜金） ----------------
   夜空为底、金字为文、金线为框；强调色转为珊瑚。
   令牌口径对齐 zleo.ai html[data-mode="dark"] */
html[data-mode="dark"] {
  /* 纸与墨 */
  --paper: #142142;
  --paper-edge: #0c152c;
  --paper-2: #101a33;
  --paper-3: #1b2c56;
  --card: #0f1628;
  --ink: #d8bd78;
  --ink-soft: rgba(216, 189, 120, .78);
  --ink-faint: rgba(216, 189, 120, .58);
  --muted: #8a96b2;
  /* 发丝线 */
  --hairline: rgba(255, 255, 255, .07);
  --hairline-strong: rgba(255, 255, 255, .12);
  /* 强调：珊瑚 mark、金线 rule */
  --mark: #e88064;
  --mark-600: #d9694c;
  --mark-700: #c2543a;
  --mark-soft: rgba(232, 128, 100, .14);
  --on-mark: #1b1206;
  --seal: #b5402e;
  --seal-ink: #f6ead2;
  --rule: rgba(201, 168, 76, .36);
  --rule-strong: rgba(201, 168, 76, .58);
  /* 纸纹与玻璃 */
  --paper-veil: rgba(216, 189, 120, .02);
  --paper-glass: rgba(12, 21, 44, .86);
  /* 阴影 */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, .3);
  --shadow-md: 0 0 30px rgba(201, 168, 76, .05);
  --shadow-lg: 0 0 0 1px rgba(201, 168, 76, .1), 0 24px 60px rgba(0, 0, 0, .38);
  /* 深色区块（夜晚版＝夜空） */
  --night: #142142;
  --night-2: #0c152c;
  --night-3: #1b2c56;
  --night-ink: #d8bd78;
  --night-soft: rgba(216, 189, 120, .74);
  --night-faint: rgba(216, 189, 120, .52);
  --night-hair: rgba(255, 255, 255, .10);
  --night-hair-strong: rgba(255, 255, 255, .18);
  --night-mark: #e88064;
  --night-mark-soft: rgba(232, 128, 100, .22);
  --mark-soft-line: rgba(232, 128, 100, .26);
  --mark-shadow: rgba(232, 128, 100, .28);
  /* 表单 */
  --field: #0a1226;
  /* 首屏 / 页头（夜晚版＝夜空） */
  --hero-bg-1: #0c152c;
  --hero-bg-2: #142142;
  --hero-bg-3: #1b2c56;
  --hero-ink: #f4ecd9;
  --hero-soft: rgba(216, 189, 120, .80);
  --hero-faint: rgba(216, 189, 120, .56);
  --hero-hair: rgba(255, 255, 255, .10);
  --hero-hair-strong: rgba(255, 255, 255, .18);
  --hero-mark: #e88064;
  --hero-glow: rgba(232, 128, 100, .16);
  color-scheme: dark;
}

/* ---------------- 基础 ---------------- */
*, *::before, *::after { box-sizing: border-box; }
html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 132px;
  touch-action: manipulation;
}
body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.8;
  color: var(--ink);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
  overflow-x: clip;
  /* 纸纹：极淡的斜向纹理 */
  background-image: repeating-linear-gradient(135deg, var(--paper-veil) 0 1px, transparent 1px 6px);
}
img, svg { max-width: 100%; height: auto; display: block; }
a { color: var(--mark); text-decoration: none; transition: color var(--motion); }
ul, ol { margin: 0; padding: 0; list-style: none; }
h1, h2, h3, h4 {
  margin: 0 0 .5em;
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.28;
  letter-spacing: -.005em;
  color: var(--ink);
}
p { margin: 0 0 1em; }
::selection { background: var(--mark); color: var(--on-mark); }
:focus-visible { outline: 2px solid var(--mark); outline-offset: 3px; border-radius: 2px; }

.skip-link {
  position: absolute; left: 16px; top: -60px; z-index: 200;
  background: var(--night); color: var(--night-ink); padding: 10px 18px;
  border-radius: 0 0 var(--radius) var(--radius); transition: top var(--motion);
  font-family: var(--font-sans);
}
.skip-link:focus { top: 0; color: var(--night-ink); }
.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;
}

/* ---------------- 布局 ---------------- */
.container { max-width: var(--maxw); margin-inline: auto; padding-inline: 24px; }
.section { padding: clamp(56px, 7vw, 96px) 0; }
.section--tight { padding: clamp(40px, 5vw, 64px) 0; }
.section--alt { background: var(--paper-2); }
.section--dark { background: var(--night); color: var(--night-ink); }
.section--dark h2, .section--dark h3 { color: var(--night-ink); }
/* 深色区内的强调色换为亮色（白天版墨块 / 夜晚版夜空块），保证对比度 */
.section--dark .eyebrow, .section--dark .link-arrow,
.cta-band .eyebrow, .cta-band .link-arrow { color: var(--night-mark); }
.section--dark .eyebrow::before, .cta-band .eyebrow::before { background: var(--night-mark); }
/* 深色区内的浅色面组件统一换深色面，避免白天版出现"浅卡浅字" */
.section--dark .step,
.section--dark .results-table,
.section--dark .quote-block { background: var(--night-2); border-color: var(--night-hair); }
.section--dark .step h3,
.section--dark .results-table td,
.section--dark .results-table thead th,
.section--dark .results-table tbody th,
.section--dark .quote-block p { color: var(--night-ink); }
.section--dark .step p { color: var(--night-soft); }
.section--dark .results-table thead th { background: rgba(216, 189, 120, .06); }
.section--dark .results-table tbody th { background: rgba(216, 189, 120, .07); }
.section--dark .results-table caption,
.section--dark .quote-block cite { color: var(--night-faint); }
.section--dark .results-table td b { color: var(--night-mark); }

.section-head { max-width: 720px; margin-bottom: clamp(32px, 4vw, 48px); }
.section-head--center { margin-inline: auto; text-align: center; }
.eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--font-mono); font-size: 12px; font-weight: 500;
  letter-spacing: .2em; text-transform: uppercase;
  color: var(--mark); margin-bottom: 14px;
}
.eyebrow::before { content: ""; width: 24px; height: 1px; background: var(--rule-strong); }
.section-head--center .eyebrow::before { display: none; }
.section-head h2 {
  font-size: clamp(1.6rem, 3.1vw, 2.1rem);
  margin-bottom: .35em;
}
.section-head--center h2::after {
  content: ""; display: block; width: 56px; height: 1px;
  background: var(--rule-strong); margin: 18px auto 0;
}
.lead { font-size: 1.0625rem; line-height: 1.9; color: var(--ink-soft); max-width: 62ch; }
.section-head--center .lead { margin-inline: auto; }
.section--dark .lead { color: var(--night-soft); }
.text-center { text-align: center; }

.grid { display: grid; gap: 24px; }
.grid > * { min-width: 0; }
.stat-item span, .card p, .product-card p, .case-card p { text-wrap: pretty; }
.grid--2 { grid-template-columns: repeat(2, 1fr); }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--4 { grid-template-columns: repeat(4, 1fr); }
/* 自适应列数（用于 5 个产品卡等不规则数量场景） */
.grid--auto { grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); }

/* ---------------- 按钮 ---------------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  min-height: 48px; padding: 12px 28px;
  border-radius: var(--radius-sm);
  font-family: var(--font-sans); font-size: 15.5px; font-weight: 600;
  letter-spacing: .01em;
  border: 1px solid transparent; cursor: pointer;
  transition: transform var(--motion), background var(--motion), color var(--motion),
    border-color var(--motion), box-shadow var(--motion);
  white-space: nowrap;
}
.btn:active { transform: translateY(1px); }
.btn--primary {
  background: var(--mark); color: var(--on-mark); border-color: var(--mark);
  box-shadow: var(--shadow-sm);
}
.btn--primary:hover { background: var(--mark-600); border-color: var(--mark-600); color: var(--on-mark); box-shadow: 0 8px 22px rgba(181, 64, 46, .22); }
.btn--ghost {
  background: transparent; color: var(--night-ink);
  border-color: var(--night-hair-strong);
}
.btn--ghost:hover { border-color: var(--night-ink); background: rgba(216, 189, 120, .10); color: var(--night-ink); }
/* 首屏在白天版为浅色纸面：ghost 按钮改用墨色令牌，保证可见 */
.hero .btn--ghost, .page-hero .btn--ghost {
  color: var(--hero-ink); border-color: var(--hero-hair-strong);
}
.hero .btn--ghost:hover, .page-hero .btn--ghost:hover {
  border-color: var(--hero-ink); background: var(--hero-glow); color: var(--hero-ink);
}
.btn--outline {
  background: transparent; color: var(--ink); border-color: var(--hairline-strong);
}
.btn--outline:hover { border-color: var(--mark); color: var(--mark); }
.btn--lg { min-height: 54px; padding: 14px 34px; font-size: 16.5px; }
.btn--block { width: 100%; }
.btn svg { flex: 0 0 auto; }

.link-arrow {
  display: inline-flex; align-items: center; gap: 6px;
  font-family: var(--font-sans); font-weight: 600; font-size: 15px; color: var(--mark);
  border-bottom: 1px solid var(--rule-strong);
  padding-bottom: 2px;
  transition: gap var(--motion), border-color var(--motion);
}
.link-arrow:hover { gap: 11px; border-color: var(--mark); }
.link-arrow svg { transition: transform var(--motion); }
.link-arrow:hover svg { transform: translateX(3px); }

/* ---------------- 页头（两行：信息栏 + 通栏导航） ---------------- */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: var(--paper-glass);
  backdrop-filter: saturate(1.2) blur(10px);
  border-bottom: 1px solid var(--hairline);
  transition: box-shadow var(--motion);
}
.site-header.is-scrolled { box-shadow: 0 6px 24px rgba(42, 33, 20, .07); }
.topbar { border-bottom: 1px solid var(--hairline); }
.topbar__inner { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 66px; }
.brand { display: inline-flex; align-items: center; gap: 12px; color: var(--ink); }
.brand:hover { color: var(--ink); }
.brand__logo { width: 38px; height: 38px; flex: 0 0 38px; }
.brand__logo rect { fill: var(--night); }
.brand__logo circle { fill: var(--night-ink); }
.brand__logo path[stroke="#FFFFFF"] { stroke: var(--night-ink); }
.brand__text { display: flex; flex-direction: column; line-height: 1.2; }
.brand__name {
  font-family: var(--font-display); font-size: 21px; font-weight: 700;
  letter-spacing: .06em; color: var(--ink);
}
.brand__tagline {
  font-family: var(--font-mono); font-size: 11px; letter-spacing: .16em;
  text-transform: uppercase; color: var(--ink-faint);
}
.topbar__phone { display: inline-flex; align-items: center; gap: 10px; color: var(--ink); }
.topbar__phone:hover { color: var(--mark); }
.topbar__phone svg { width: 20px; height: 20px; flex: 0 0 20px; color: var(--mark); }
.topbar__phone small {
  display: block; font-family: var(--font-mono); font-size: 10.5px; font-weight: 400;
  letter-spacing: .16em; text-transform: uppercase; color: var(--ink-faint);
}
.topbar__phone b { font-family: var(--font-display); font-size: 18px; font-weight: 700; letter-spacing: .02em; }

.mainnav { width: 100%; }
.mainnav__inner { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 54px; }
.nav-list { display: flex; align-items: center; gap: 2px; flex-wrap: wrap; }
.nav-list a {
  display: inline-block; padding: 9px 14px; border-radius: var(--radius-sm);
  font-size: 15px; font-weight: 500; color: var(--ink-soft);
  transition: color var(--motion), background var(--motion);
}
.nav-list a:hover { color: var(--mark); background: var(--mark-soft); }
.nav-list a.is-active { color: var(--mark); font-weight: 600; }
.nav-list a.is-active::after {
  content: ""; display: block; height: 1px; background: var(--mark); margin-top: 3px;
}
.nav-toggle {
  display: none; width: 46px; height: 46px;
  border: 1px solid var(--hairline-strong); border-radius: var(--radius-sm);
  background: transparent; cursor: pointer; padding: 0;
  align-items: center; justify-content: center; color: var(--ink);
}
.nav-toggle svg { width: 20px; height: 20px; }
.nav-toggle .ic-close { display: none; }
.nav-toggle.open .ic-menu { display: none; }

/* ---------------- 主题切换（白天 / 夜晚） ---------------- */
.theme-toggle {
  width: 44px; height: 44px; flex: 0 0 44px;
  display: inline-grid; place-items: center;
  border: 1px solid var(--hairline-strong); border-radius: var(--radius-sm);
  background: transparent; cursor: pointer; padding: 0;
  color: var(--ink); position: relative;
  transition: border-color var(--motion), color var(--motion), background var(--motion);
}
.theme-toggle:hover { border-color: var(--rule-strong); color: var(--mark); }
.theme-toggle svg { width: 19px; height: 19px; position: absolute; transition: opacity var(--motion), transform var(--motion-slow); }
.theme-toggle .ic-moon { opacity: 0; transform: rotate(-45deg) scale(.7); }
.theme-toggle .ic-sun { opacity: 1; }
html[data-mode="dark"] .theme-toggle .ic-moon { opacity: 1; transform: none; }
html[data-mode="dark"] .theme-toggle .ic-sun { opacity: 0; transform: rotate(45deg) scale(.7); }
html[data-mode="auto"] .theme-toggle .ic-auto { opacity: 0; }
.nav-toggle.open .ic-close { display: block; }

/* ---------------- 首屏（白天＝纸面 / 夜晚＝夜空） ---------------- */
.hero {
  position: relative; color: var(--hero-soft); overflow: hidden;
  background:
    radial-gradient(720px 380px at 82% -8%, var(--hero-glow) 12%, transparent 60%),
    radial-gradient(880px 460px at -6% 108%, var(--hero-bg-3) 70%, transparent 64%),
    linear-gradient(158deg, var(--hero-bg-1) 0%, var(--hero-bg-2) 55%, var(--hero-bg-3) 100%);
}
.hero::before {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background-image: radial-gradient(circle at 1px 1px, var(--hero-hair-strong) 1px, transparent 0);
  background-size: 34px 34px;
}
/* 星点闪烁（致敬 zleo 星图；仅夜晚版呈现） */
.hero__stars { position: absolute; inset: 0; pointer-events: none; overflow: hidden; }
html[data-mode="light"] .hero__stars { display: none; }
.hero__stars i {
  position: absolute; width: 3px; height: 3px; border-radius: 50%;
  background: var(--night-ink);
  animation: twinkle 4.5s ease-in-out infinite;
}
@keyframes twinkle {
  0%, 100% { opacity: .18; transform: scale(.8); }
  50% { opacity: .85; transform: scale(1.15); }
}
.hero__content { min-width: 0; }
.hero__grid {
  position: relative; display: grid; grid-template-columns: 1.1fr .9fr;
  gap: clamp(32px, 5vw, 60px); align-items: center;
  padding: clamp(56px, 7vw, 92px) 0 clamp(72px, 8vw, 108px);
}
.hero__badge {
  display: inline-flex; align-items: center; gap: 9px; padding: 6px 16px;
  border: 1px solid var(--hero-hair-strong); border-radius: 999px;
  font-family: var(--font-mono); font-size: 11.5px; letter-spacing: .16em;
  text-transform: uppercase; color: var(--hero-soft); margin-bottom: 22px;
}
.hero__badge .dot {
  width: 6px; height: 6px; border-radius: 50%; background: var(--hero-mark);
  box-shadow: 0 0 0 4px var(--mark-soft);
}
.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4.6vw, 3.35rem);
  font-weight: 700; line-height: 1.24; letter-spacing: -.01em;
  color: var(--hero-ink); margin-bottom: 20px;
}
.hero h1 em { font-style: normal; color: var(--hero-mark); border-bottom: 2px solid var(--rule-strong); padding-bottom: 3px; }
.hero__sub {
  font-size: 1.0625rem; line-height: 1.9; color: var(--hero-soft);
  max-width: 54ch; margin-bottom: 34px;
}
.hero__actions { display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 30px; }
.hero__note { display: flex; flex-wrap: wrap; gap: 10px 26px; font-size: 14px; color: var(--hero-faint); }
.hero__note li { display: inline-flex; align-items: center; gap: 8px; }
.hero__note svg { width: 16px; height: 16px; flex: 0 0 16px; color: var(--rule-strong); }

/* 首屏右侧：经营驾驶舱（白天＝墨块 / 夜晚＝夜空块，作视觉焦点） */
.hero__visual { position: relative; }
.dash {
  background: var(--night); border: 1px solid var(--night-hair);
  border-radius: var(--radius); box-shadow: var(--shadow-lg);
  padding: 22px; color: var(--night-ink);
}
.dash__head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 16px; }
.dash__title { display: flex; align-items: center; gap: 9px; font-family: var(--font-display); font-size: 14.5px; font-weight: 700; color: var(--night-ink); }
.dash__title .live { width: 8px; height: 8px; border-radius: 50%; background: var(--night-mark); box-shadow: 0 0 0 4px var(--night-mark-soft); }
.dash__tag {
  font-family: var(--font-mono); font-size: 10.5px; letter-spacing: .12em; text-transform: uppercase;
  color: var(--night-mark); background: var(--night-mark-soft); border: 1px solid var(--night-mark-soft);
  padding: 3px 10px; border-radius: 999px;
}
.dash__stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin-bottom: 18px; }
.dash__stat { background: rgba(255, 255, 255, .045); border: 1px solid var(--night-hair); border-radius: var(--radius-sm); padding: 12px; }
.dash__stat span { display: block; font-size: 12px; color: var(--night-faint); margin-bottom: 2px; }
.dash__stat b { font-family: var(--font-display); font-size: 20px; font-weight: 700; color: var(--night-ink); }
.dash__stat i { font-style: normal; font-size: 12px; font-weight: 600; margin-left: 4px; }
.dash__stat .up { color: var(--night-mark); }
.dash__chart { display: flex; align-items: flex-end; gap: 8px; height: 104px; padding-top: 6px; border-bottom: 1px solid var(--rule); }
.dash__bar { flex: 1; display: flex; flex-direction: column; justify-content: flex-end; height: 100%; }
.dash__bar i { display: block; border-radius: 2px 2px 0 0; background: linear-gradient(180deg, var(--bar-a), var(--bar-b)); }
.dash__bar:last-child i { background: linear-gradient(180deg, var(--night-mark), #c2543a); }
.dash__labels { display: flex; gap: 8px; margin-top: 8px; }
.dash__labels span { flex: 1; text-align: center; font-size: 11px; color: var(--night-faint); }
.dash__foot { display: flex; align-items: center; gap: 8px; margin-top: 14px; font-size: 13px; color: var(--night-soft); }
.dash__foot svg { width: 15px; height: 15px; color: var(--night-ink); }
.hero__visual-ghost {
  position: absolute; right: -10px; bottom: -18px; width: 200px; padding: 12px 16px;
  background: var(--card); border: 1px solid var(--hairline); border-radius: var(--radius-sm);
  box-shadow: var(--shadow-md); font-size: 12.5px; color: var(--ink-soft);
}
.hero__visual-ghost b { display: block; font-family: var(--font-display); color: var(--ink); font-size: 13.5px; }

/* ---------------- 数据信任区 ---------------- */
.stats-strip { position: relative; margin-top: -48px; z-index: 5; }
.stats-strip__inner {
  display: grid; grid-template-columns: repeat(5, 1fr); gap: 4px;
  background: var(--card); border: 1px solid var(--hairline);
  border-radius: var(--radius); box-shadow: var(--shadow-md); padding: 26px 16px;
}
.stat-item { text-align: center; padding: 4px 10px; }
.stat-item + .stat-item { border-left: 1px solid var(--hairline); }
.stat-item b {
  display: block; font-family: var(--font-display);
  font-size: clamp(1.35rem, 2.4vw, 1.85rem); font-weight: 700;
  color: var(--ink); line-height: 1.2;
}
.stat-item b em { font-style: normal; font-size: .6em; color: var(--mark); margin-left: 2px; }
.stat-item span { font-size: 13px; color: var(--ink-faint); }

/* ---------------- 卡片 ---------------- */
.card {
  background: var(--card); border: 1px solid var(--hairline);
  border-radius: var(--radius); padding: 28px;
  transition: transform var(--motion), border-color var(--motion), box-shadow var(--motion);
}
.card:hover { transform: translateY(-3px); border-color: var(--rule-strong); box-shadow: var(--shadow-md); }
.card__icon {
  width: 46px; height: 46px; border-radius: var(--radius-sm); display: grid; place-items: center;
  background: var(--mark-soft); color: var(--mark); margin-bottom: 16px;
}
.card__icon svg { width: 22px; height: 22px; }
.card h3 { font-size: 1.2rem; margin-bottom: 10px; }
.card p { font-size: 15px; color: var(--ink-soft); margin-bottom: 0; }
/* 深色卡自带深色底，避免被放在浅色区块上时浅字压浅底 */
.card--dark { background: var(--night-2); border-color: var(--night-hair); box-shadow: none; }
.card--dark h3 { color: var(--night-ink); }
.card--dark p { color: var(--night-soft); }
.card--dark .card__icon { background: rgba(232, 128, 100, .14); color: var(--night-mark); }
.card--dark:hover { border-color: var(--rule-strong); }

.checklist li { position: relative; padding-left: 26px; font-size: 15px; color: var(--ink-soft); margin-bottom: 9px; }
.checklist li::before {
  content: ""; position: absolute; left: 0; top: 7px; width: 15px; height: 15px;
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23b5402e' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M4 12.5l5 5L20 6.5'/%3E%3C/svg%3E") no-repeat center / contain;
}
.checklist--dark li { color: var(--night-soft); }
.checklist--dark li::before { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23d8bd78' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M4 12.5l5 5L20 6.5'/%3E%3C/svg%3E"); }

/* ---------------- 产品卡片 ---------------- */
.product-card { display: flex; flex-direction: column; }
.product-card__tag {
  align-self: flex-start; font-family: var(--font-mono); font-size: 11px; font-weight: 500;
  letter-spacing: .14em; color: var(--mark); background: var(--mark-soft);
  border: 1px solid var(--mark-soft-line);
  padding: 3px 12px; border-radius: 999px; margin-bottom: 14px;
}
.product-card h3 { font-size: 1.25rem; }
.product-card__meta { font-family: var(--font-mono); font-size: 11.5px; letter-spacing: .04em; color: var(--ink-faint); margin-bottom: 14px; }
.product-card__meta span + span::before { content: "·"; margin: 0 7px; }
.product-card__list { margin-bottom: 18px; flex: 1; }
.product-card__price { border-top: 1px solid var(--hairline); padding-top: 14px; margin-bottom: 16px; font-size: 14px; color: var(--ink-soft); }
.product-card__price b { font-family: var(--font-display); font-size: 1.3rem; color: var(--mark); }
.product-card__price small { color: var(--ink-faint); }

/* ---------------- 案例卡片 ---------------- */
.case-card { display: flex; flex-direction: column; }
.case-card__head { display: flex; align-items: flex-start; justify-content: space-between; gap: 12px; margin-bottom: 6px; }
.case-card__tags { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; }
.case-tag {
  flex: 0 0 auto; font-family: var(--font-mono); font-size: 11px; letter-spacing: .1em;
  color: var(--mark); background: var(--mark-soft); border: 1px solid rgba(181, 64, 46, .2);
  border-radius: 999px; padding: 3px 12px;
}
.case-tag--muted {
  color: var(--ink-faint); background: transparent; border-color: var(--hairline-strong);
}
.case-card h3 { font-size: 1.2rem; margin-bottom: 4px; }
.case-card__meta { font-family: var(--font-mono); font-size: 11.5px; color: var(--ink-faint); margin-bottom: 16px; }
.case-card__meta span + span::before { content: "·"; margin: 0 7px; }
.case-block { margin-bottom: 14px; }
.case-block__label {
  display: inline-flex; align-items: center; gap: 7px; font-family: var(--font-mono);
  font-size: 11px; letter-spacing: .14em; text-transform: uppercase;
  color: var(--ink); margin-bottom: 5px;
}
.case-block__label::before { content: ""; width: 6px; height: 6px; border-radius: 1px; background: var(--mark); }
.case-block p, .case-block li { font-size: 14.5px; color: var(--ink-soft); margin: 0; }
.case-block ul li { position: relative; padding-left: 14px; margin-bottom: 4px; }
.case-block ul li::before { content: ""; position: absolute; left: 0; top: 11px; width: 5px; height: 5px; border-radius: 50%; background: var(--rule-strong); }
.result-chips { display: flex; flex-wrap: wrap; gap: 8px; margin: 4px 0 18px; }
.chip {
  display: inline-flex; align-items: baseline; gap: 5px;
  font-family: var(--font-sans); font-size: 12.5px; font-weight: 600;
  color: var(--mark-600); background: var(--mark-soft);
  border: 1px solid var(--mark-soft-line); border-radius: 999px; padding: 4px 13px;
}
.chip b { font-family: var(--font-display); font-size: 14.5px; }
.case-card__foot { border-top: 1px solid var(--hairline); padding-top: 16px; margin-top: auto; }

/* ---------------- 步骤 ---------------- */
.steps { display: grid; grid-template-columns: repeat(6, 1fr); gap: 14px; }
.step {
  background: var(--card); border: 1px solid var(--hairline);
  border-radius: var(--radius-sm); padding: 20px 16px;
  transition: border-color var(--motion), transform var(--motion);
}
.step__num {
  width: 30px; height: 30px; border-radius: 50%; display: grid; place-items: center;
  background: var(--mark); color: var(--on-mark); font-family: var(--font-mono);
  font-size: 13px; font-weight: 500; margin-bottom: 12px;
}
.step h3 { font-size: 1.02rem; margin-bottom: 6px; }
.step p { font-size: 13.5px; color: var(--ink-soft); margin: 0; }

/* ---------------- FAQ ---------------- */
.faq { max-width: 860px; }
.faq details {
  background: var(--card); border: 1px solid var(--hairline);
  border-radius: var(--radius-sm); margin-bottom: 12px; overflow: hidden;
  transition: border-color var(--motion);
}
.faq details[open] { border-color: var(--rule-strong); }
.faq summary {
  list-style: none; cursor: pointer; display: flex; align-items: center; justify-content: space-between;
  gap: 14px; padding: 18px 22px;
  font-family: var(--font-display); font-size: 1.05rem; font-weight: 600; color: var(--ink);
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary .faq__ic {
  flex: 0 0 auto; width: 24px; height: 24px; border-radius: 50%;
  border: 1px solid var(--hairline-strong); display: grid; place-items: center;
  color: var(--mark); transition: transform var(--motion), background var(--motion), color var(--motion);
}
.faq summary .faq__ic svg { width: 12px; height: 12px; }
.faq details[open] summary .faq__ic { transform: rotate(45deg); background: var(--mark); border-color: var(--mark); color: #fff; }
.faq__a { padding: 0 22px 20px; color: var(--ink-soft); font-size: 15px; }
.faq__a p { margin-bottom: .6em; }

/* ---------------- 底部强转化区（夜空层） ---------------- */
.cta-band { background: linear-gradient(150deg, var(--night-2), var(--night) 62%, var(--night-3)); color: var(--night-ink); }
.cta-band__grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: clamp(32px, 5vw, 56px); align-items: center; }
.cta-band h2 { color: #f4ecd9; font-size: clamp(1.6rem, 3vw, 2.15rem); }
.cta-band__lead { color: var(--night-soft); font-size: 1.0625rem; margin-bottom: 22px; }
.cta-band__phone { display: flex; align-items: center; gap: 14px; margin-top: 26px; padding-top: 22px; border-top: 1px solid var(--night-hair); }
.cta-band__phone svg { width: 28px; height: 28px; color: var(--night-mark); flex: 0 0 28px; }
.cta-band__phone b { display: block; font-family: var(--font-display); font-size: 1.6rem; letter-spacing: .02em; }
.cta-band__phone span { font-size: 13px; color: var(--night-faint); }
.cta-form { background: var(--card); border: 1px solid var(--hairline); border-radius: var(--radius); padding: 28px; box-shadow: var(--shadow-lg); color: var(--ink); }
.cta-form h3 { font-size: 1.2rem; margin-bottom: 16px; }

/* ---------------- 表单 ---------------- */
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-group { display: flex; flex-direction: column; gap: 6px; }
.form-group--full { grid-column: 1 / -1; }
.form-group label { font-size: 13.5px; font-weight: 600; color: var(--ink); }
.form-group .req { color: var(--mark); margin-left: 2px; }
input, select, textarea {
  font-family: var(--font-sans); font-size: 16px; color: var(--ink);
  border: 1px solid var(--hairline-strong); border-radius: var(--radius-sm);
  padding: 12px 14px; background: var(--field); width: 100%;
  -webkit-appearance: none; appearance: none;
  transition: border-color var(--motion), box-shadow var(--motion);
}
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--mark); box-shadow: 0 0 0 3px rgba(181, 64, 46, .12); }
textarea { min-height: 120px; resize: vertical; line-height: 1.7; }
select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%232a2114' stroke-width='2.2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right 12px center; background-size: 15px; padding-right: 38px;
}
.form-error { display: none; font-size: 12.5px; color: var(--mark-600); font-weight: 600; }
.form-group.has-error input, .form-group.has-error select, .form-group.has-error textarea { border-color: var(--mark); box-shadow: 0 0 0 3px rgba(181, 64, 46, .12); }
.form-group.has-error .form-error { display: block; }
.checkbox-row { display: flex; align-items: flex-start; gap: 9px; font-size: 13.5px; color: var(--ink-soft); }
.checkbox-row input { width: 18px; height: 18px; min-width: 18px; flex: 0 0 18px; padding: 0; margin-top: 3px; accent-color: var(--mark); }
.form-note { font-size: 12.5px; color: var(--ink-faint); margin-top: 10px; line-height: 1.7; }
.form-success { display: none; text-align: center; padding: 30px 10px; }
.form-success.show { display: block; }
.form-success__ic {
  width: 60px; height: 60px; margin: 0 auto 14px; border-radius: 50%;
  border: 1px solid var(--rule-strong); display: grid; place-items: center; color: var(--mark);
}
.form-success__ic svg { width: 28px; height: 28px; }
.form-success h3 { font-size: 1.25rem; margin-bottom: 8px; }
.form-success p { color: var(--ink-soft); font-size: 15px; }
.form-success__acts {
  display: flex; flex-wrap: wrap; gap: 12px; justify-content: center;
  margin-top: 20px;
}
.form-success__acts .btn { min-height: 44px; display: inline-flex; align-items: center; }
.form-success__note {
  margin-top: 12px; font-size: 13.5px; color: var(--mark-600);
}
.form-success__note:empty { display: none; }

/* ---------------- 页脚（夜空层） ---------------- */
.site-footer { background: var(--night-2); color: var(--night-faint); }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.2fr; gap: 40px; padding: clamp(44px, 5vw, 64px) 0 40px; }
.footer-brand .brand { margin-bottom: 16px; color: var(--night-ink); }
.footer-brand .brand__name { color: var(--night-ink); }
.footer-brand .brand__tagline { color: var(--night-faint); }
.footer-brand p { font-size: 14px; line-height: 1.85; color: var(--night-faint); }
.footer-col h4 {
  font-family: var(--font-mono); font-size: 11.5px; letter-spacing: .18em; text-transform: uppercase;
  color: var(--night-ink); margin-bottom: 16px; font-weight: 500;
}
.footer-col li { margin-bottom: 9px; }
.footer-col a { color: var(--night-faint); font-size: 14.5px; }
.footer-col a:hover { color: var(--night-mark); }
.footer-contact li { display: flex; gap: 10px; font-size: 14.5px; align-items: flex-start; }
.footer-contact svg { width: 16px; height: 16px; flex: 0 0 16px; margin-top: 6px; color: var(--gold); }
.footer-bottom {
  border-top: 1px solid var(--night-hair); padding: 20px 0;
  display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 10px;
  font-size: 13px; color: var(--night-faint);
}
.footer-bottom a { color: var(--night-faint); }
.footer-bottom a:hover { color: var(--night-mark); }
.footer-bottom p { margin: 0; }

/* ---------------- 悬浮按钮 ---------------- */
.float-btns { position: fixed; right: 18px; bottom: 22px; z-index: 90; display: flex; flex-direction: column; gap: 10px; align-items: flex-end; }
.float-consult {
  display: inline-flex; align-items: center; gap: 8px; min-height: 48px; padding: 11px 20px;
  background: var(--mark); color: var(--on-mark); border-radius: 999px;
  font-weight: 600; font-size: 15px; box-shadow: 0 10px 26px var(--mark-shadow);
  transition: background var(--motion), transform var(--motion);
}
.float-consult:hover { background: var(--mark-600); color: var(--on-mark); }
.float-consult svg { width: 18px; height: 18px; }
.back-top {
  width: 46px; height: 46px; border-radius: 50%; border: 1px solid var(--hairline-strong);
  background: var(--card); color: var(--ink); cursor: pointer; display: grid; place-items: center;
  box-shadow: var(--shadow-sm); opacity: 0; visibility: hidden; transform: translateY(8px);
  transition: opacity var(--motion), transform var(--motion), visibility var(--motion);
}
.back-top.show { opacity: 1; visibility: visible; transform: none; }
.back-top svg { width: 17px; height: 17px; }

/* ---------------- 内页页头（夜空层） ---------------- */
.page-hero {
  position: relative; color: var(--hero-soft); overflow: hidden;
  background:
    radial-gradient(620px 300px at 88% -10%, var(--hero-glow) 10%, transparent 60%),
    linear-gradient(150deg, var(--hero-bg-1), var(--hero-bg-2) 70%, var(--hero-bg-3));
}
.page-hero::before {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background-image: radial-gradient(circle at 1px 1px, var(--hero-hair-strong) 1px, transparent 0);
  background-size: 32px 32px;
}
.page-hero__inner { position: relative; padding: clamp(44px, 5vw, 62px) 0 clamp(48px, 6vw, 68px); max-width: 880px; }
.breadcrumb { font-family: var(--font-mono); font-size: 11.5px; letter-spacing: .1em; color: var(--hero-faint); margin-bottom: 18px; }
.breadcrumb a { color: var(--hero-faint); }
.breadcrumb a:hover { color: var(--hero-mark); }
.breadcrumb span { margin: 0 7px; opacity: .6; }
.page-hero h1 { color: var(--hero-ink); font-size: clamp(1.7rem, 3.6vw, 2.5rem); font-weight: 700; }
.page-hero .lead { color: var(--hero-soft); font-size: 1.0625rem; margin-bottom: 0; }

/* ---------------- 解决方案 ---------------- */
.solution-card { display: flex; flex-direction: column; }
.solution-card__head { display: flex; align-items: center; gap: 16px; margin-bottom: 18px; }
.solution-card__head .card__icon { margin-bottom: 0; flex: 0 0 46px; }
.solution-card__head h3 { font-size: 1.3rem; margin: 0; }
.solution-card__head p { font-size: 13.5px; color: var(--ink-faint); margin: 2px 0 0; }
.solution-block { margin-bottom: 18px; }
.solution-block__label {
  font-family: var(--font-mono); font-size: 11px; letter-spacing: .16em; text-transform: uppercase;
  color: var(--mark); margin-bottom: 8px;
}
.solution-block p, .solution-block li { font-size: 14.5px; color: var(--ink-soft); }
.solution-block ul li { position: relative; padding-left: 14px; margin-bottom: 6px; }
.solution-block ul li::before { content: ""; position: absolute; left: 0; top: 11px; width: 5px; height: 5px; border-radius: 50%; background: var(--rule-strong); }
.solution-card__foot {
  border-top: 1px solid var(--hairline); padding-top: 16px; margin-top: auto;
  display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap;
}

/* ---------------- 新闻 ---------------- */
.news-list { max-width: 880px; }
.news-item {
  background: var(--card); border: 1px solid var(--hairline);
  border-radius: var(--radius); padding: 26px 28px; margin-bottom: 18px;
  scroll-margin-top: 130px; transition: border-color var(--motion), box-shadow var(--motion);
}
.news-item:hover { border-color: var(--rule-strong); box-shadow: var(--shadow-sm); }
.news-item__meta { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; margin-bottom: 10px; }
.news-cat {
  font-family: var(--font-mono); font-size: 11px; letter-spacing: .1em;
  color: var(--mark); background: var(--mark-soft); border: 1px solid rgba(181, 64, 46, .2);
  border-radius: 999px; padding: 2px 11px;
}
.news-item__meta time, .news-item__meta span:not(.news-cat) { font-family: var(--font-mono); font-size: 12px; color: var(--ink-faint); }
.news-item h2 { font-size: 1.25rem; margin-bottom: 8px; }
.news-item__excerpt { font-size: 15px; color: var(--ink-soft); }
.news-item details { margin-top: 12px; border-top: 1px solid var(--hairline); padding-top: 12px; }
.news-item summary {
  cursor: pointer; font-family: var(--font-sans); font-size: 14px; font-weight: 600; color: var(--mark);
  list-style: none; display: inline-flex; align-items: center; gap: 6px;
}
.news-item summary::-webkit-details-marker { display: none; }
.news-item summary svg { width: 14px; height: 14px; transition: transform var(--motion); }
.news-item details[open] summary svg { transform: rotate(90deg); }
.news-item__body { font-size: 15px; color: var(--ink-soft); margin-top: 10px; }
.news-item__body p { margin-bottom: .8em; }

/* ---------------- 关于我们 ---------------- */
.mv-card h3 { display: flex; align-items: center; gap: 10px; font-size: 1.15rem; }
.mv-card h3 svg { width: 20px; height: 20px; color: var(--mark); flex: 0 0 20px; }
.founder-card { display: grid; grid-template-columns: 300px 1fr; gap: 36px; align-items: start; }
.founder-card__aside {
  background: linear-gradient(160deg, var(--night-2), var(--night));
  color: var(--night-ink); border-radius: var(--radius); padding: 30px; text-align: center;
}
.founder-card__avatar {
  width: 88px; height: 88px; margin: 0 auto 16px; border-radius: 50%;
  border: 1px solid var(--rule-strong); display: grid; place-items: center;
  font-family: var(--font-display); font-size: 30px; font-weight: 700; color: var(--night-ink);
}
.founder-card__aside h3 { color: var(--night-ink); font-size: 1.35rem; margin-bottom: 4px; }
.founder-card__aside .role { font-family: var(--font-mono); font-size: 12px; letter-spacing: .08em; color: var(--night-faint); margin-bottom: 16px; }
.founder-card__aside .quote {
  font-family: var(--font-serif); font-size: 14px; color: var(--night-soft);
  border-top: 1px solid var(--night-hair); padding-top: 14px; line-height: 1.9;
}
.founder-card__body h3 { font-size: 1.2rem; }
.founder-card__body p { font-size: 15px; color: var(--ink-soft); }
/* 团队成员照片 / 岗位标签 / 二维码 */
.founder-card__photo {
  width: 100%; aspect-ratio: 4 / 5; object-fit: cover; display: block;
  border-radius: 12px; border: 1px solid var(--rule-strong); margin-bottom: 18px;
}
.role-mini {
  font-family: var(--font-mono); font-size: 11.5px; letter-spacing: .08em;
  color: var(--mark-600); margin: 4px 0 10px;
}
.qr-img {
  width: 168px; height: auto; display: block; margin: 0 auto;
  border-radius: 10px; border: 1px solid var(--hairline);
  background: #fff; padding: 6px;
}
.checklist--tight li { padding-block: 7px; }
.timeline { position: relative; max-width: 820px; margin-inline: auto; padding-left: 34px; }
.timeline::before { content: ""; position: absolute; left: 8px; top: 8px; bottom: 8px; width: 1px; background: linear-gradient(180deg, var(--mark), var(--rule)); }
.timeline__item { position: relative; padding-bottom: 30px; }
.timeline__item:last-child { padding-bottom: 0; }
.timeline__dot { position: absolute; left: -34px; top: 6px; width: 17px; height: 17px; border-radius: 50%; background: var(--paper); border: 1px solid var(--mark); }
.timeline__item:last-child .timeline__dot { background: var(--mark); }
.timeline__year { font-family: var(--font-mono); font-size: 12px; letter-spacing: .14em; color: var(--mark); margin-bottom: 4px; }
.timeline__item h3 { font-size: 1.1rem; margin-bottom: 4px; }
.timeline__item p { font-size: 14.5px; color: var(--ink-soft); margin: 0; }

/* ---------------- 案例详情 ---------------- */
.case-hero {
  color: var(--hero-soft);
  background:
    radial-gradient(620px 300px at 88% -10%, var(--hero-glow) 10%, transparent 60%),
    linear-gradient(150deg, var(--hero-bg-1), var(--hero-bg-2) 72%, var(--hero-bg-3));
}
.case-hero__inner { padding: clamp(40px, 5vw, 56px) 0 clamp(44px, 5vw, 60px); }
.case-hero .case-tag { background: var(--mark-soft); border-color: var(--hero-hair-strong); color: var(--hero-mark); margin-bottom: 16px; }
.case-hero h1 { color: var(--hero-ink); font-size: clamp(1.55rem, 3.2vw, 2.2rem); max-width: 860px; }
.case-hero__meta { display: flex; flex-wrap: wrap; gap: 10px 28px; margin-top: 18px; font-size: 14px; color: var(--hero-soft); }
.case-hero__meta b { color: var(--hero-ink); font-weight: 600; }
.case-layout { display: grid; grid-template-columns: 1fr 300px; gap: 44px; align-items: start; }
.case-section { margin-bottom: 40px; scroll-margin-top: 130px; }
.case-section > h2 { font-size: 1.4rem; padding-left: 15px; border-left: 2px solid var(--mark); margin-bottom: 16px; }
.case-section p, .case-section li { font-size: 15.5px; color: var(--ink-soft); }
.case-section ul.num-list { counter-reset: n; }
.case-section ul.num-list li { position: relative; padding-left: 40px; margin-bottom: 16px; }
.case-section ul.num-list li::before {
  counter-increment: n; content: counter(n);
  position: absolute; left: 0; top: 2px; width: 26px; height: 26px; border-radius: 50%;
  border: 1px solid var(--rule-strong); color: var(--mark);
  font-family: var(--font-mono); font-size: 12px; font-weight: 500; display: grid; place-items: center;
}
.case-section ul.num-list li b { display: block; font-family: var(--font-display); color: var(--ink); font-size: 1.02rem; }
.results-table { width: 100%; border-collapse: collapse; background: var(--card); border: 1px solid var(--hairline); }
.results-table caption { caption-side: top; text-align: left; font-family: var(--font-mono); font-size: 11.5px; letter-spacing: .08em; color: var(--ink-faint); padding-bottom: 8px; }
.results-table th, .results-table td { border: 1px solid var(--hairline); padding: 13px 16px; font-size: 14.5px; text-align: left; vertical-align: top; }
.results-table thead th { background: var(--paper-2); color: var(--ink); font-family: var(--font-display); font-weight: 700; }
.results-table tbody th { background: rgba(201, 168, 76, .07); color: var(--ink); font-weight: 600; width: 26%; }
.results-table td b { font-family: var(--font-display); color: var(--mark); }
.quote-block {
  background: var(--paper-2); border-left: 2px solid var(--mark);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0; padding: 22px 26px;
}
.quote-block p { font-family: var(--font-serif); font-size: 1.05rem; color: var(--ink); margin-bottom: 10px; line-height: 1.9; }
.quote-block cite { font-style: normal; font-family: var(--font-mono); font-size: 12px; letter-spacing: .06em; color: var(--ink-faint); }
.case-aside { position: sticky; top: 128px; background: var(--card); border: 1px solid var(--hairline); border-radius: var(--radius); padding: 24px; }
.case-aside h3 { font-size: 1.1rem; margin-bottom: 14px; }
.case-aside .btn { margin-bottom: 12px; }
.case-aside__info li { display: flex; justify-content: space-between; gap: 12px; font-size: 13.5px; padding: 9px 0; border-bottom: 1px solid var(--hairline); }
.case-aside__info li:last-child { border-bottom: 0; }
.case-aside__info span { color: var(--ink-faint); flex: 0 0 auto; }
.case-aside__info b { color: var(--ink); text-align: right; font-weight: 600; }
.case-aside__nav { display: grid; gap: 10px; margin-top: 16px; padding-top: 16px; border-top: 1px solid var(--hairline); font-size: 13px; line-height: 1.6; }
/* 触达友好：整块可点，最小 44px 高 */
.case-aside__nav a { display: flex; align-items: center; min-height: 44px; padding: 8px 12px; margin: 0 -12px; border-radius: 10px; color: var(--mark-600); }
.case-aside__nav a:hover { color: var(--mark); background: var(--mark-soft); }
.related-cases .card { padding: 22px; }
.related-cases .card h3 { font-size: 1.08rem; }

/* ---------------- 联系我们 ---------------- */
.contact-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: clamp(32px, 4vw, 48px); align-items: start; }
.info-item { display: flex; gap: 14px; padding: 18px 0; border-bottom: 1px solid var(--hairline); }
.info-item:last-child { border-bottom: 0; }
.info-item__ic { flex: 0 0 42px; width: 42px; height: 42px; border-radius: var(--radius-sm); background: var(--mark-soft); color: var(--mark); display: grid; place-items: center; }
.info-item__ic svg { width: 19px; height: 19px; }
.info-item h3 { font-size: 1.02rem; margin-bottom: 2px; }
.info-item p, .info-item a { font-size: 14.5px; color: var(--ink-soft); margin: 0; }
.info-item a { font-weight: 600; color: var(--mark); }
.contact-form-wrap { background: var(--card); border: 1px solid var(--hairline); border-radius: var(--radius); padding: clamp(22px, 3vw, 32px); }
.contact-form-wrap h2 { font-size: 1.45rem; }
.contact-form-wrap > p { font-size: 14.5px; color: var(--ink-soft); }

/* ---------------- 404 ---------------- */
.error-page { text-align: center; padding: clamp(70px, 10vw, 120px) 0 clamp(80px, 12vw, 140px); }
.error-page__code { font-family: var(--font-display); font-size: clamp(4.5rem, 14vw, 8rem); font-weight: 700; color: var(--mark); line-height: 1; }
.error-page h1 { font-size: 1.7rem; margin: 14px 0 10px; }
.error-page p { color: var(--ink-soft); max-width: 520px; margin-inline: auto; }
.error-page .hero__actions { justify-content: center; margin-top: 26px; }

/* ---------------- 隐私政策 / 文档页 ---------------- */
.doc-page { max-width: 820px; }
.doc-page h2 { font-size: 1.25rem; margin-top: 34px; }
.doc-page p, .doc-page li { font-size: 15px; color: var(--ink-soft); }
.doc-page ul { list-style: none; padding-left: 0; }
.doc-page ul li { position: relative; padding-left: 20px; margin-bottom: 6px; }
.doc-page ul li::before { content: ""; position: absolute; left: 0; top: 12px; width: 6px; height: 1px; background: var(--mark); }

/* ---------------- 滚动进场 ---------------- */
.js .reveal { opacity: 0; transform: translateY(18px); transition: opacity var(--motion-slow), transform var(--motion-slow); }
.js .reveal.is-visible { opacity: 1; transform: none; }
.js .reveal-d1 { transition-delay: .08s; }
.js .reveal-d2 { transition-delay: .16s; }
.js .reveal-d3 { transition-delay: .24s; }

/* =========================================================
   移动端触摸适配
   ========================================================= */

/* ---- 触摸设备：移除悬停态，改用按压反馈 ---- */
@media (hover: none), (pointer: coarse) {
  a:hover { color: inherit; }
  .btn:hover { color: inherit; background: transparent; border-color: transparent; box-shadow: none; transform: none; }
  .btn--primary:hover { background: var(--mark); border-color: var(--mark); color: var(--on-mark); box-shadow: var(--shadow-sm); }
  .btn--ghost:hover { background: transparent; border-color: var(--night-hair-strong); color: var(--night-ink); }
  .btn--outline:hover { background: transparent; border-color: var(--hairline-strong); color: var(--ink); }
  .link-arrow:hover { gap: 6px; border-color: var(--rule-strong); }
  .link-arrow:hover svg { transform: none; }
  .topbar__phone:hover { color: var(--ink); }
  .nav-list a:hover { color: var(--ink-soft); background: transparent; }
  .nav-list a.is-active:hover { color: var(--mark); }
  .card:hover { transform: none; border-color: var(--hairline); box-shadow: none; }
  .chip.is-filter:hover { border-color: var(--mark-soft-line); }
  .float-consult:hover { background: var(--mark); color: var(--on-mark); }
  .footer-col a:hover, .footer-bottom a:hover { color: var(--night-faint); }
  .breadcrumb a:hover { color: var(--hero-mark); }
  .news-item:hover { border-color: var(--hairline); box-shadow: none; }

  .card:active { transform: scale(.99); }
  .btn:active { transform: scale(.985); }
  .btn--primary:active { background: var(--mark-600); }
  .chip.is-filter:active { transform: scale(.96); }
  .faq summary:active { background: var(--paper-2); }
  .news-item summary:active { opacity: .65; }
  .step:active { border-color: var(--rule-strong); }
}

/* ---- 触摸目标尺寸（≥44×44px）---- */
@media (max-width: 768px) {
  .chip { min-height: 40px; }
  .chip.is-filter { min-height: 44px; padding: 10px 18px; display: inline-flex; align-items: center; }
  .faq summary { min-height: 58px; }
  .news-item summary { display: inline-flex; align-items: center; min-height: 44px; padding: 8px 0; }
  .breadcrumb a { display: inline-flex; align-items: center; min-height: 44px; padding: 0 8px; }
  .brand { min-height: 44px; }
  .topbar__phone { min-height: 44px; padding: 4px 2px; }
  .link-arrow { display: inline-flex; align-items: center; min-height: 44px; padding: 6px 0; }
  .footer-col a { display: inline-block; padding: 10px 0; }
  .footer-contact a, .info-item a { display: inline-flex; align-items: center; min-height: 44px; }
  .footer-bottom a { display: inline-flex; align-items: center; min-height: 44px; padding: 0 2px; }
  .form-note a { display: inline-block; padding: 12px 0; }
  .doc-page a { display: inline-flex; align-items: center; min-height: 44px; }
  .card p a, .news-item__body p a, .solution-block a, .checklist a, .case-block a { display: inline-block; padding: 12px 0; }
  .checkbox-row input { width: 22px; height: 22px; min-width: 22px; flex: 0 0 22px; }
  .checkbox-row { min-height: 44px; }
  .info-item { padding: 20px 0; }
  .back-top { width: 48px; height: 48px; }
  .float-consult { min-height: 48px; }
  .nav-cta { min-height: 44px; }
  .eyebrow { letter-spacing: .16em; }
}

/* ---- 横屏矮屏（手机横放）---- */
@media (orientation: landscape) and (max-height: 500px) {
  .hero__grid { padding: 24px 0 38px; gap: 20px; }
  .hero__badge { margin-bottom: 10px; }
  .hero__sub { font-size: 15px; margin-bottom: 14px; }
  .hero__actions { margin-bottom: 10px; }
  .hero__visual { max-width: 400px; }
  .dash { padding: 14px; }
  .dash__chart { height: 54px; }
  .dash__stats { margin-bottom: 10px; }
  .dash__foot { margin-top: 10px; }
  .page-hero__inner { padding: 24px 0 28px; }
  .case-hero__inner { padding: 28px 0 32px; }
  .section { padding: 34px 0; }
  .section--tight { padding: 26px 0; }
  .section-head { margin-bottom: 24px; }
  .stats-strip { margin-top: -20px; }
  .topbar__inner { min-height: 46px; }
  .mainnav__inner { min-height: 46px; }
  .brand__logo { width: 32px; height: 32px; flex-basis: 32px; }
  .error-page { padding: 40px 0 48px; }
  .float-btns { bottom: 10px; }
  .nav-list {
    max-height: calc(100vh - 92px);
    max-height: calc(100dvh - 92px);
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
  }
}

/* ---- 安全区（刘海 / 底部手势条）---- */
.float-btns {
  right: calc(14px + env(safe-area-inset-right));
  bottom: calc(14px + env(safe-area-inset-bottom));
}
.site-footer { padding-bottom: env(safe-area-inset-bottom); }
.cta-band { padding-bottom: max(clamp(56px, 7vw, 96px), env(safe-area-inset-bottom)); }

/* ---- 横向滚动容器 ---- */
.table-scroll { overflow-x: auto; -webkit-overflow-scrolling: touch; overscroll-behavior-x: contain; touch-action: pan-x pan-y; }
.table-scroll--wide .results-table { min-width: 560px; }

/* ---- 长按选中 / 点击高亮 / 滑动提示 ---- */
.btn, .nav-toggle, .chip, summary, .back-top, .float-consult {
  -webkit-user-select: none; user-select: none; -webkit-touch-callout: none;
}
a, button, summary, .chip, input, select, textarea {
  -webkit-tap-highlight-color: var(--mark-soft);
}
.swipe-hint { display: none; align-items: center; gap: 8px; font-family: var(--font-mono); font-size: 11.5px; letter-spacing: .06em; color: var(--ink-faint); margin-bottom: 14px; }
.swipe-hint svg { width: 15px; height: 15px; flex: 0 0 15px; color: var(--mark); }
@media (hover: none), (pointer: coarse) { .swipe-hint { display: flex; } }

/* ---------------- 响应式断点 ---------------- */
@media (max-width: 1080px) {
  .grid--4 { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(3, 1fr); }
  .stats-strip__inner { grid-template-columns: repeat(3, 1fr); row-gap: 20px; }
  .stat-item:nth-child(4) { border-left: 0; }
}

@media (max-width: 960px) {
  .hero__grid { grid-template-columns: 1fr; gap: clamp(28px, 5vw, 44px); }
  .hero__visual { max-width: 520px; }
  .cta-band__grid { grid-template-columns: 1fr; gap: 32px; }
  .case-layout { grid-template-columns: 1fr; }
  .case-aside { position: static; }
  .contact-grid { grid-template-columns: 1fr; }
  .founder-card { grid-template-columns: 1fr; }
  .founder-card__aside { max-width: 380px; }
  .grid--3 { grid-template-columns: repeat(2, 1fr); }

  .nav-toggle { display: inline-flex; }
  .mainnav__inner { min-height: 60px; }
  .nav-cta { display: none; }
  .nav-list {
    position: absolute; left: 0; right: 0; top: 100%;
    flex-direction: column; align-items: stretch; gap: 2px;
    background: var(--paper); border-bottom: 1px solid var(--hairline);
    box-shadow: var(--shadow-md); padding: 10px 20px 18px; display: none;
  }
  .nav-list.open { display: flex; }
  .nav-list a { padding: 14px 10px; font-size: 16px; border-bottom: 1px solid var(--hairline); border-radius: 0; }
  .nav-list a.is-active::after { display: none; }
  .nav-list a.is-active { background: var(--mark-soft); color: var(--mark); }
}

@media (max-width: 768px) {
  .grid--2, .grid--3 { grid-template-columns: 1fr; }
  .form-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 30px; }
  .topbar__inner { min-height: 58px; }
  .brand__tagline { display: none; }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .news-item { padding: 22px 20px; }
  .container { padding-inline: 20px; }
}

@media (max-width: 600px) {
  .stats-strip__inner { grid-template-columns: repeat(2, 1fr); }
  .stat-item:nth-child(odd) { border-left: 0; }
  .hero__actions .btn { width: 100%; }
  .hero__visual-ghost { display: none; }
  .grid--4 { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
  body { font-size: 15.5px; }
  .container { padding-inline: 16px; }
  .topbar__phone b { font-size: 16px; }
  .topbar__phone small { display: none; }
  .footer-grid { grid-template-columns: 1fr; gap: 26px; }
  .steps { grid-template-columns: 1fr; }
  .card { padding: 22px; }
  .case-hero__meta { gap: 8px 18px; }
  .float-consult span { display: none; }
  .float-consult { padding: 13px; }
  .footer-bottom { justify-content: center; text-align: center; }
  .section-head h2 { font-size: 1.45rem; }
}

@media (max-width: 375px) {
  .brand__name { font-size: 18px; }
  .dash__stats { grid-template-columns: 1fr 1fr; }
  .dash__stat:last-child { display: none; }
  .stats-strip__inner { grid-template-columns: 1fr; }
  .stat-item + .stat-item { border-left: 0; }
}

/* ---------------- 减少动效偏好 ---------------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: .01ms !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; }
  .js .reveal { opacity: 1; transform: none; }
  .hero__stars i { animation: none; }
}