/* ============================================================
   web5 · 矩衡数字 —— 工业蓝图设计系统
   INDUSTRIAL BLUEPRINT · Brutalist Grid Theme
   all classes prefixed with "e-"
   画布 #F4F2ED / 墨线 #111111 / 信号黄 #FFD400
   规则：零圆角 / 2px 实心黑边框 / 硬投影 6px 6px 0 #111
        hover 变信号黄 / 等宽编号 / 方括号与箭头装饰
   ============================================================ */

/* 1. 设计令牌 */
:root {
  --e-paper: #F4F2ED;
  --e-paper-2: #FFFFFF;
  --e-ink: #111111;
  --e-yellow: #FFD400;
  --e-line: rgba(17, 17, 17, .15);
  --e-line-strong: rgba(17, 17, 17, .45);
  --e-shadow: 6px 6px 0 #111111;
  --e-shadow-sm: 4px 4px 0 #111111;
  --e-shadow-lg: 10px 10px 0 #111111;
  --e-font: "Helvetica Neue", Helvetica, Arial, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --e-mono: ui-monospace, "SF Mono", Consolas, "Courier New", monospace;
  --e-nav-h: 66px;
  --e-marquee-h: 30px;
  --e-speed: .12s;
}

/* 2. Reset 与基础 */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; border-radius: 0 !important; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body.e-body {
  background: var(--e-paper);
  color: var(--e-ink);
  font-family: var(--e-font);
  font-size: 16px;
  line-height: 1.72;
  min-height: 100vh;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  border-top: 6px solid var(--e-ink);
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { font-family: inherit; cursor: pointer; background: none; border: 0; color: inherit; }
input, select, textarea { font-family: inherit; font-size: 15px; }
em, i { font-style: normal; }
b, strong { font-weight: 800; }
::selection { background: var(--e-yellow); color: var(--e-ink); }
::-webkit-scrollbar { width: 12px; height: 12px; }
::-webkit-scrollbar-track { background: var(--e-paper); border-left: 2px solid var(--e-ink); }
::-webkit-scrollbar-thumb { background: var(--e-ink); border: 2px solid var(--e-paper); }
.mono { font-family: var(--e-mono); }

/* 3. 顶部跑马灯公告带（黑底通栏细条） */
.e-marquee {
  height: var(--e-marquee-h);
  background: var(--e-ink);
  color: var(--e-paper);
  overflow: hidden;
  display: flex;
  align-items: center;
  border-bottom: 2px solid var(--e-ink);
}
.e-marquee-track {
  display: flex;
  width: max-content;
  animation: e-marquee 30s linear infinite;
}
.e-marquee-track span {
  font-family: var(--e-mono);
  font-size: 12px;
  letter-spacing: .18em;
  white-space: nowrap;
  padding: 0 18px;
}
.e-marquee-track span i { color: var(--e-yellow); margin: 0 10px; }
@keyframes e-marquee {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}

/* 4. 导航（黑框通栏） */
.e-head {
  position: sticky;
  top: 0;
  z-index: 90;
  background: var(--e-paper);
  border-bottom: 2px solid var(--e-ink);
}
.e-nav {
  width: min(1240px, 96%);
  margin: 0 auto;
  height: var(--e-nav-h);
  display: flex;
  align-items: stretch;
  gap: 24px;
}
.e-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-right: auto;
}
.e-logo-mark {
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  background: var(--e-ink);
  color: var(--e-yellow);
  font-size: 22px;
  font-weight: 900;
  border: 2px solid var(--e-ink);
  box-shadow: var(--e-shadow-sm);
  transition: background var(--e-speed), color var(--e-speed), transform var(--e-speed);
}
.e-logo:hover .e-logo-mark { background: var(--e-yellow); color: var(--e-ink); }
.e-logo-txt { display: flex; flex-direction: column; line-height: 1.15; }
.e-logo-txt strong { font-size: 19px; font-weight: 900; letter-spacing: .06em; }
.e-logo-txt em {
  font-family: var(--e-mono);
  font-size: 10px;
  letter-spacing: .3em;
  color: var(--e-line-strong);
}
.e-nav-links { display: flex; align-items: stretch; }
.e-nav-links li { display: flex; }
.e-nav-links a {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 0 20px;
  border-left: 2px solid var(--e-line);
  font-weight: 700;
  font-size: 15px;
  letter-spacing: .08em;
  transition: background var(--e-speed), color var(--e-speed);
}
.e-nav-links a:last-child { border-right: 2px solid var(--e-line); }
.e-nav-links a i.idx {
  font-family: var(--e-mono);
  font-size: 11px;
  color: var(--e-line-strong);
  letter-spacing: 0;
}
.e-nav-links a:hover { background: var(--e-yellow); }
.e-nav-links a.is-active { background: var(--e-ink); color: var(--e-paper); }
.e-nav-links a.is-active i.idx { color: var(--e-yellow); }
.e-nav-side { display: flex; align-items: center; gap: 14px; }
.e-burger {
  display: none;
  width: 44px;
  height: 44px;
  border: 2px solid var(--e-ink);
  align-items: center;
  justify-content: center;
  background: var(--e-paper);
}
.e-burger .ico-close { display: none; }
.e-burger.is-open .ico-open { display: none; }
.e-burger.is-open .ico-close { display: block; }

/* 5. 移动端抽屉 */
.e-drawer { display: none; border-top: 2px solid var(--e-ink); background: var(--e-paper); }
.e-drawer a {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 24px;
  border-bottom: 2px solid var(--e-line);
  font-weight: 700;
  letter-spacing: .08em;
}
.e-drawer a.is-active { background: var(--e-ink); color: var(--e-paper); }
.e-drawer .e-btn { margin: 16px 24px; }

/* 6. 按钮体系（硬投影 + hover 信号黄） */
.e-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 22px;
  border: 2px solid var(--e-ink);
  font-weight: 800;
  font-size: 15px;
  letter-spacing: .06em;
  background: var(--e-paper-2);
  color: var(--e-ink);
  box-shadow: var(--e-shadow);
  transition: transform var(--e-speed), box-shadow var(--e-speed), background var(--e-speed), color var(--e-speed);
  user-select: none;
}
.e-btn:hover { transform: translate(-2px, -2px); box-shadow: 8px 8px 0 #111; }
.e-btn:active { transform: translate(2px, 2px); box-shadow: 2px 2px 0 #111; }
.e-btn-primary { background: var(--e-ink); color: var(--e-paper); }
.e-btn-primary:hover { background: var(--e-yellow); color: var(--e-ink); }
.e-btn-primary:hover .e-i { color: var(--e-ink); }
.e-btn-ghost { background: transparent; }
.e-btn-ghost:hover { background: var(--e-yellow); }
.e-btn-lg { padding: 15px 28px; font-size: 16px; }
.e-btn-sm { padding: 8px 14px; font-size: 13px; box-shadow: var(--e-shadow-sm); }
.e-btn-block { width: 100%; }

/* 7. 布局骨架 / 章节通用 */
.e-container { width: min(1240px, 94%); margin: 0 auto; }
.e-main { padding: 0 0 0; }
.e-section { padding: 88px 0 0; }
.e-section:last-of-type { padding-bottom: 110px; }
.e-eyebrow {
  font-family: var(--e-mono);
  font-size: 13px;
  letter-spacing: .16em;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 16px;
}
.e-eyebrow::before { content: ""; width: 12px; height: 12px; background: var(--e-yellow); border: 2px solid var(--e-ink); }
.e-h1 {
  font-size: clamp(36px, 5.4vw, 64px);
  line-height: 1.08;
  font-weight: 900;
  letter-spacing: .01em;
  text-transform: uppercase;
}
.e-h2 {
  font-size: clamp(25px, 3.4vw, 40px);
  line-height: 1.2;
  font-weight: 900;
  margin-bottom: 14px;
  text-transform: uppercase;
}
.e-lead { color: var(--e-ink); font-size: 17px; max-width: 640px; opacity: .82; }
.e-sub { font-size: 16px; opacity: .78; margin-bottom: 8px; }
.e-h2 + .e-sub { opacity: .78; }
.e-center { text-align: center; }
.e-center .e-lead { margin: 0 auto; }
.e-mt { margin-top: 44px; }

/* 8. 小方块标签（黑底白字 / 黄底黑字） */
.e-tagchip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  background: var(--e-ink);
  color: var(--e-paper);
  font-family: var(--e-mono);
  font-size: 12px;
  letter-spacing: .12em;
  border: 2px solid var(--e-ink);
  white-space: nowrap;
}
.e-tagchip-idx { background: var(--e-yellow); color: var(--e-ink); }
.e-tagchip-line { background: transparent; color: var(--e-ink); }

/* 9. HERO：左巨型标题 + 右黑框数据表 */
.e-hero { padding: 72px 0 0; }
.e-hero-grid {
  display: grid;
  grid-template-columns: 1.15fr .85fr;
  gap: 48px;
  align-items: start;
}
.e-hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--e-mono);
  font-size: 13px;
  letter-spacing: .2em;
  border: 2px solid var(--e-ink);
  background: var(--e-yellow);
  padding: 6px 14px;
  margin-bottom: 26px;
  font-weight: 700;
}
.e-hero .e-h1 { margin-bottom: 24px; }
.e-hero .e-h1 span { background: var(--e-ink); color: var(--e-yellow); padding: 0 14px; box-decoration-break: clone; -webkit-box-decoration-break: clone; }
.e-hero-desc { font-size: 17.5px; max-width: 560px; opacity: .85; margin-bottom: 32px; }
.e-hero-actions { display: flex; flex-wrap: wrap; gap: 18px; margin-bottom: 30px; }
.e-hero-meta { display: flex; flex-wrap: wrap; gap: 0; border: 2px solid var(--e-ink); }
.e-hero-meta span {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--e-mono);
  font-size: 12.5px;
  letter-spacing: .1em;
  padding: 9px 14px;
  border-right: 2px solid var(--e-ink);
  background: var(--e-paper);
  transition: background var(--e-speed);
}
.e-hero-meta span:last-child { border-right: 0; }
.e-hero-meta span:hover { background: var(--e-yellow); }

/* 9b. 黑框数据表（替代终端窗口） */
.e-datasheet { border: 2px solid var(--e-ink); background: var(--e-paper-2); box-shadow: var(--e-shadow); }
.e-datasheet-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--e-ink);
  color: var(--e-paper);
  padding: 10px 16px;
}
.e-datasheet-bar b { font-family: var(--e-mono); font-size: 12px; letter-spacing: .22em; }
.e-datasheet-bar i {
  width: 12px; height: 12px;
  background: var(--e-yellow);
  border: 1px solid var(--e-paper);
  display: inline-block;
  margin-left: 8px;
}
.e-datasheet-row {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 11px 16px;
  border-bottom: 1px solid var(--e-line);
  font-family: var(--e-mono);
  font-size: 13.5px;
  letter-spacing: .02em;
}
.e-datasheet-row:last-child { border-bottom: 0; background: var(--e-yellow); font-weight: 700; }
.e-datasheet-row .no {
  color: var(--e-line-strong);
  font-size: 11px;
  width: 34px;
  flex: none;
}
.e-datasheet-row.t-dim { opacity: .66; }
.e-datasheet-row.t-ok::after { content: "[OK]"; margin-left: auto; font-size: 11px; letter-spacing: .1em; background: var(--e-ink); color: var(--e-yellow); padding: 1px 7px; }
.e-cursor { display: inline-block; width: 9px; height: 16px; background: var(--e-ink); margin-left: 6px; animation: e-blink 1s steps(2) infinite; vertical-align: -2px; }
@keyframes e-blink { 50% { opacity: 0; } }

/* 10. 数据区：一行四格边框表 */
.e-stats { padding: 64px 0 0; }
.e-stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); border: 2px solid var(--e-ink); background: var(--e-paper-2); box-shadow: var(--e-shadow); }
.e-stat {
  padding: 30px 26px;
  border-right: 2px solid var(--e-ink);
  transition: background var(--e-speed);
  position: relative;
}
.e-stat:last-child { border-right: 0; }
.e-stat::before {
  content: "";
  position: absolute;
  top: 0; left: 0;
  width: 14px; height: 14px;
  background: var(--e-yellow);
  border-right: 2px solid var(--e-ink);
  border-bottom: 2px solid var(--e-ink);
}
.e-stat:hover { background: var(--e-yellow); }
.e-stat-num { font-family: var(--e-mono); font-size: clamp(30px, 3.2vw, 44px); font-weight: 700; line-height: 1.1; letter-spacing: -.02em; }
.e-stat-txt { font-weight: 700; font-size: 14px; letter-spacing: .14em; margin-top: 8px; opacity: .8; }

/* 11. 服务区：2×3 共边网格 */
.e-svc-grid { display: grid; grid-template-columns: repeat(3, 1fr); border: 2px solid var(--e-ink); background: var(--e-ink); gap: 2px; }
.e-svc {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 30px 28px;
  background: var(--e-paper);
  transition: background var(--e-speed), transform var(--e-speed);
  position: relative;
}
.e-svc:hover { background: var(--e-yellow); }
.e-svc-idx {
  position: absolute;
  top: 0; right: 0;
  font-family: var(--e-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .1em;
  padding: 4px 10px;
  background: var(--e-ink);
  color: var(--e-paper);
}
.e-svc:hover .e-svc-idx { background: var(--e-paper); color: var(--e-ink); }
.e-svc-ico {
  width: 52px; height: 52px;
  display: grid;
  place-items: center;
  border: 2px solid var(--e-ink);
  background: var(--e-paper-2);
  box-shadow: var(--e-shadow-sm);
}
.e-svc h3 { font-size: 21px; font-weight: 900; letter-spacing: .04em; text-transform: uppercase; }
.e-svc p { font-size: 14.5px; opacity: .8; flex: 1; }
.e-svc-foot { display: flex; align-items: center; justify-content: space-between; border-top: 2px solid var(--e-ink); padding-top: 14px; }
.e-svc-price { font-family: var(--e-mono); font-size: 15px; font-weight: 700; }
.e-svc-price b { font-size: 24px; }
.e-svc-more { font-family: var(--e-mono); font-size: 12.5px; letter-spacing: .1em; display: inline-flex; align-items: center; gap: 6px; }

/* 12. 流程区：横向步骤条带编号 */
.e-flow { display: grid; grid-template-columns: repeat(4, 1fr); border: 2px solid var(--e-ink); background: var(--e-ink); gap: 2px; margin-top: 36px; }
.e-step { padding: 28px 26px 32px; background: var(--e-paper); transition: background var(--e-speed); position: relative; }
.e-step:hover { background: var(--e-yellow); }
.e-step-idx {
  display: inline-block;
  font-family: var(--e-mono);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .14em;
  background: var(--e-ink);
  color: var(--e-yellow);
  padding: 5px 12px;
  margin-bottom: 18px;
}
.e-step h3 { font-size: 18px; font-weight: 900; letter-spacing: .06em; margin-bottom: 10px; text-transform: uppercase; }
.e-step p { font-size: 14px; opacity: .78; }
.e-step::after {
  content: "→";
  position: absolute;
  right: 14px; bottom: 12px;
  font-family: var(--e-mono);
  font-size: 20px;
  opacity: .35;
}
.e-step:last-child::after { content: "■"; }

/* 13. 案例台账（黑框行式账本） */
.e-ledger { border: 2px solid var(--e-ink); background: var(--e-paper-2); box-shadow: var(--e-shadow); margin-top: 36px; }
.e-case-row {
  display: grid;
  grid-template-columns: 110px 1fr 2.2fr;
  gap: 22px;
  align-items: center;
  padding: 24px 28px;
  border-bottom: 2px solid var(--e-ink);
  transition: background var(--e-speed);
}
.e-case-row:last-child { border-bottom: 0; }
.e-case-row:hover { background: var(--e-yellow); }
.e-case-no { font-family: var(--e-mono); font-size: 26px; font-weight: 700; opacity: .5; }
.e-case-row h3 { font-size: 18px; font-weight: 900; letter-spacing: .04em; display: flex; align-items: center; gap: 10px; flex-wrap: wrap; text-transform: uppercase; }
.e-case-row p { font-size: 14.5px; opacity: .8; }
.e-case-chip { font-family: var(--e-mono); font-size: 11px; letter-spacing: .14em; background: var(--e-ink); color: var(--e-yellow); padding: 2px 8px; }

/* 14. FAQ（边框折叠面板） */
.e-faq { border: 2px solid var(--e-ink); background: var(--e-paper-2); box-shadow: var(--e-shadow); margin-top: 36px; }
.e-faq-item { border-bottom: 2px solid var(--e-ink); }
.e-faq-item:last-child { border-bottom: 0; }
.e-faq-item summary {
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 20px 26px;
  font-weight: 800;
  font-size: 16.5px;
  cursor: pointer;
  letter-spacing: .02em;
  transition: background var(--e-speed);
}
.e-faq-item summary::-webkit-details-marker { display: none; }
.e-faq-item summary:hover { background: var(--e-yellow); }
.e-faq-ico { flex: none; display: inline-grid; place-items: center; width: 30px; height: 30px; border: 2px solid var(--e-ink); background: var(--e-yellow); }
.e-faq-ico .e-i { transition: transform var(--e-speed); }
.e-faq-item[open] .e-faq-ico .e-i { transform: rotate(45deg); }
.e-faq-a { padding: 0 26px 22px; font-size: 15px; opacity: .82; max-width: 860px; }

/* 15. CTA 黑块 */
.e-cta-wrap { padding: 88px 0 110px; }
.e-cta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 36px;
  flex-wrap: wrap;
  background: var(--e-ink);
  color: var(--e-paper);
  border: 2px solid var(--e-ink);
  box-shadow: 10px 10px 0 var(--e-yellow);
  padding: 52px 54px;
}
.e-cta .e-eyebrow { color: var(--e-yellow); }
.e-cta .e-eyebrow::before { background: var(--e-yellow); border-color: var(--e-yellow); }
.e-cta .e-h2 { color: var(--e-paper); }
.e-cta .e-sub { color: var(--e-paper); opacity: .7; }
.e-cta-actions { display: flex; flex-wrap: wrap; gap: 18px; }
.e-cta .e-btn-primary { background: var(--e-yellow); color: var(--e-ink); border-color: var(--e-yellow); box-shadow: 6px 6px 0 rgba(244, 242, 237, .35); }
.e-cta .e-btn-primary:hover { background: var(--e-paper); color: var(--e-ink); }
.e-cta .e-btn-ghost { background: transparent; color: var(--e-paper); border-color: var(--e-paper); box-shadow: 6px 6px 0 rgba(255, 212, 0, .5); }
.e-cta .e-btn-ghost:hover { background: var(--e-yellow); color: var(--e-ink); border-color: var(--e-yellow); }

/* 16. 内页页眉 + 面包屑 */
.e-pagehero { padding: 64px 0 0; }
.e-crumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  font-family: var(--e-mono);
  font-size: 12.5px;
  letter-spacing: .1em;
  margin-bottom: 26px;
}
.e-crumb a { border-bottom: 2px solid var(--e-ink); padding-bottom: 1px; }
.e-crumb a:hover { background: var(--e-yellow); }
.e-crumb-sep { opacity: .4; }
.e-crumb em { background: var(--e-ink); color: var(--e-yellow); padding: 2px 9px; }

/* 17. 通用卡片 */
.e-card {
  border: 2px solid var(--e-ink);
  background: var(--e-paper-2);
  padding: 30px;
  box-shadow: var(--e-shadow);
  transition: transform var(--e-speed), box-shadow var(--e-speed);
}
.e-card:hover { transform: translate(-2px, -2px); box-shadow: 8px 8px 0 #111; }

/* 18. BUY 详情页 */
.e-buy-top { display: grid; grid-template-columns: 1.35fr .65fr; gap: 44px; align-items: start; margin-top: 8px; }
.e-buy-badge { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 20px; }
.e-buy-intro .e-h1 { margin-bottom: 18px; }
.e-buy-intro .e-lead { margin-bottom: 30px; }
.e-buy-actions { display: flex; flex-wrap: wrap; gap: 16px; }
.e-pricecard { border: 2px solid var(--e-ink); background: var(--e-paper-2); box-shadow: var(--e-shadow); }
.e-pricecard-label {
  font-family: var(--e-mono);
  font-size: 12px;
  letter-spacing: .2em;
  background: var(--e-ink);
  color: var(--e-yellow);
  padding: 10px 20px;
}
.e-pricecard-num {
  font-family: var(--e-mono);
  font-size: 46px;
  font-weight: 700;
  padding: 22px 20px 6px;
  line-height: 1.1;
}
.e-pricecard-num small { font-size: 15px; font-weight: 400; opacity: .6; }
.e-pricecard-list { padding: 14px 20px 20px; border-bottom: 2px solid var(--e-ink); }
.e-pricecard-list li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14.5px;
  font-weight: 600;
  padding: 6px 0;
}
.e-pricecard-list li .e-i { color: var(--e-ink); background: var(--e-yellow); border: 1px solid var(--e-ink); padding: 1px; }
.e-pricecard .e-btn-block { border: 0; border-top: 2px solid var(--e-ink); box-shadow: none; }
.e-pricecard-tel {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 20px;
  font-size: 13.5px;
}
.e-pricecard-tel span { opacity: .7; }
.e-pricecard-tel a { display: inline-flex; align-items: center; gap: 7px; font-family: var(--e-mono); font-weight: 700; border-bottom: 2px solid var(--e-ink); }
.e-pricecard-tel a:hover { background: var(--e-yellow); }

/* 18b. 交付要点 / 场景 / 技术 */
.e-points { display: grid; grid-template-columns: repeat(2, 1fr); border: 2px solid var(--e-ink); background: var(--e-ink); gap: 2px; margin-top: 32px; }
.e-point { padding: 28px 28px 32px; background: var(--e-paper); position: relative; transition: background var(--e-speed); }
.e-point:hover { background: var(--e-yellow); }
.e-point-idx {
  font-family: var(--e-mono);
  font-size: 34px;
  font-weight: 700;
  opacity: .22;
  display: block;
  margin-bottom: 6px;
}
.e-point h3 { font-size: 18px; font-weight: 900; margin-bottom: 8px; text-transform: uppercase; letter-spacing: .04em; }
.e-point p { font-size: 14.5px; opacity: .8; }
.e-scenes { display: grid; grid-template-columns: repeat(3, 1fr); border: 2px solid var(--e-ink); background: var(--e-ink); gap: 2px; margin-top: 32px; }
.e-scene {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 16px 20px;
  background: var(--e-paper);
  font-weight: 700;
  font-size: 14.5px;
  transition: background var(--e-speed);
}
.e-scene:hover { background: var(--e-yellow); }
.e-scene .e-i { flex: none; }
.e-techcard { margin-top: 32px; }
.e-techcard p { font-size: 15px; opacity: .85; }
.e-techtags { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 20px; }

/* 19. 表单体系 */
.e-form-grid { display: grid; grid-template-columns: .8fr 1.2fr; gap: 40px; align-items: start; }
.e-formcard { border: 2px solid var(--e-ink); background: var(--e-paper-2); padding: 34px; box-shadow: var(--e-shadow); }
.e-form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.e-field { margin-bottom: 20px; }
.e-field label {
  display: block;
  font-weight: 800;
  font-size: 13.5px;
  letter-spacing: .1em;
  margin-bottom: 8px;
  text-transform: uppercase;
}
.e-field .req { color: var(--e-ink); background: var(--e-yellow); padding: 0 5px; margin-left: 6px; font-family: var(--e-mono); }
.e-input, .e-select, .e-textarea {
  width: 100%;
  border: 2px solid var(--e-ink);
  background: var(--e-paper);
  color: var(--e-ink);
  padding: 12px 14px;
  outline: none;
  transition: box-shadow var(--e-speed), background var(--e-speed);
}
.e-textarea { min-height: 130px; resize: vertical; }
.e-input:focus, .e-select:focus, .e-textarea:focus { background: var(--e-paper-2); box-shadow: var(--e-shadow-sm); }
.e-select-wrap { position: relative; display: block; }
.e-select { appearance: none; -webkit-appearance: none; padding-right: 40px; }
.e-select-wrap .e-i {
  position: absolute;
  right: 12px; top: 50%;
  transform: translateY(-50%);
  pointer-events: none;
}
.e-form-note {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--e-mono);
  font-size: 12.5px;
  letter-spacing: .06em;
  opacity: .7;
  margin-top: 14px;
}

/* 20. 侧栏摘要卡 */
.e-summary { display: flex; flex-direction: column; gap: 26px; }
.e-summary-head { display: flex; align-items: center; gap: 16px; margin-bottom: 18px; }
.e-summary-ico { width: 52px; height: 52px; display: grid; place-items: center; border: 2px solid var(--e-ink); background: var(--e-yellow); flex: none; }
.e-summary-head h3 { font-size: 19px; font-weight: 900; text-transform: uppercase; letter-spacing: .04em; }
.e-summary-price { display: flex; align-items: baseline; gap: 14px; border-top: 2px solid var(--e-ink); border-bottom: 2px solid var(--e-ink); padding: 16px 0; margin-bottom: 16px; }
.e-summary-price b { font-family: var(--e-mono); font-size: 38px; font-weight: 700; }
.e-summary-price span { font-size: 12.5px; font-family: var(--e-mono); letter-spacing: .06em; opacity: .7; }
.e-summary-list li { display: flex; align-items: flex-start; gap: 10px; padding: 8px 0; font-size: 14.5px; }
.e-summary-list li .e-i { flex: none; margin-top: 3px; }
.e-summary-list li span { line-height: 1.65; }

/* 21. 订单信息表 */
.e-ordercard { padding: 0; overflow: hidden; }
.e-ordercard-title {
  font-family: var(--e-mono);
  font-size: 13px;
  letter-spacing: .2em;
  background: var(--e-ink);
  color: var(--e-yellow);
  padding: 12px 24px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.e-order-rows { padding: 10px 0; }
.e-order-row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 24px;
  padding: 11px 24px;
  border-bottom: 1px solid var(--e-line);
}
.e-order-row:last-child { border-bottom: 0; }
.e-order-row .k { font-weight: 800; font-size: 13.5px; letter-spacing: .12em; flex: none; }
.e-order-row .k::before { content: "[ "; opacity: .4; }
.e-order-row .k::after { content: " ]"; opacity: .4; }
.e-order-row .v { text-align: right; font-size: 15px; overflow-wrap: anywhere; }
.e-order-row .v.mono { font-family: var(--e-mono); font-weight: 700; }
.e-order-row .v.price { font-family: var(--e-mono); font-size: 24px; font-weight: 700; background: var(--e-yellow); padding: 2px 12px; border: 2px solid var(--e-ink); }

/* 22. 支付方式格 */
.e-paygrid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 2px; background: var(--e-ink); border: 2px solid var(--e-ink); margin-bottom: 26px; }
.e-paytile {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 18px 20px;
  background: var(--e-paper);
  text-align: left;
  border: 0;
  transition: background var(--e-speed);
}
.e-paytile span { display: flex; flex-direction: column; gap: 2px; }
.e-paytile b { font-size: 15.5px; font-weight: 800; letter-spacing: .04em; }
.e-paytile span span { font-size: 12px; font-family: var(--e-mono); opacity: .65; }
.e-paytile-ico { width: 40px; height: 40px; display: grid; place-items: center; border: 2px solid var(--e-ink); flex: none; }
.e-paytile.is-active { background: var(--e-yellow); }
.e-paytile.is-active .e-paytile-ico { background: var(--e-ink); color: var(--e-yellow); border-color: var(--e-ink); }
.e-paytile:not(.is-off):hover { background: var(--e-yellow); }
.e-paytile.is-off { opacity: .45; cursor: not-allowed; }

/* 23. 支付须知 */
.e-paynote { margin-top: 34px; border: 2px solid var(--e-ink); background: var(--e-paper-2); padding: 24px 28px; }
.e-paynote h4 { font-family: var(--e-mono); font-size: 13px; letter-spacing: .2em; margin-bottom: 14px; }
.e-paynote li { display: flex; align-items: flex-start; gap: 12px; padding: 7px 0; font-size: 14px; opacity: .85; }
.e-paynote li .no {
  flex: none;
  font-family: var(--e-mono);
  font-size: 11.5px;
  font-weight: 700;
  background: var(--e-ink);
  color: var(--e-yellow);
  padding: 2px 7px;
  margin-top: 3px;
}

/* 24. 提示条 / 成功页 */
.e-alert {
  display: flex;
  align-items: center;
  gap: 12px;
  border: 2px solid var(--e-ink);
  background: var(--e-yellow);
  padding: 14px 20px;
  font-weight: 700;
  font-size: 14.5px;
  margin-bottom: 26px;
  box-shadow: var(--e-shadow-sm);
}
.e-alert .mark {
  flex: none;
  width: 26px; height: 26px;
  display: grid;
  place-items: center;
  background: var(--e-ink);
  color: var(--e-yellow);
  font-family: var(--e-mono);
  font-weight: 700;
}
.e-success { border: 2px solid var(--e-ink); background: var(--e-paper-2); box-shadow: var(--e-shadow-lg); padding: 48px 46px; text-align: center; }
.e-success-ico {
  width: 84px; height: 84px;
  display: inline-grid;
  place-items: center;
  border: 2px solid var(--e-ink);
  background: var(--e-yellow);
  box-shadow: var(--e-shadow-sm);
  margin-bottom: 26px;
}
.e-success h1 { font-size: clamp(24px, 3vw, 34px); font-weight: 900; text-transform: uppercase; letter-spacing: .02em; margin-bottom: 12px; }
.e-success .e-sub { margin-bottom: 26px; }
.e-success-rows { border: 2px solid var(--e-ink); text-align: left; margin-bottom: 30px; }
.e-success-rows .e-order-row { padding: 12px 20px; }
.e-success-actions { display: flex; justify-content: center; flex-wrap: wrap; gap: 16px; }

/* 25. 关于页：图纸资料块（替代照片） */
.e-about-grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: 44px; align-items: start; }
.e-about-txt { font-size: 15px; line-height: 1.95; opacity: .88; margin-top: 6px; }
.e-specblock { border: 2px solid var(--e-ink); background: var(--e-paper-2); box-shadow: var(--e-shadow); position: relative; }
.e-specblock-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--e-ink);
  color: var(--e-yellow);
  font-family: var(--e-mono);
  font-size: 12px;
  letter-spacing: .2em;
  padding: 10px 18px;
}
.e-specblock-body { padding: 26px 26px 30px; }
.e-specblock-title { font-family: var(--e-mono); font-size: 26px; font-weight: 700; letter-spacing: .02em; margin-bottom: 4px; }
.e-specblock-sub { font-size: 13px; font-family: var(--e-mono); letter-spacing: .18em; opacity: .6; margin-bottom: 22px; }
.e-specblock-row {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  font-family: var(--e-mono);
  font-size: 13px;
  padding: 9px 0;
  border-top: 1px solid var(--e-line);
}
.e-specblock-row b { letter-spacing: .1em; }
.e-specblock-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 2px solid var(--e-ink);
  background: var(--e-yellow);
  padding: 12px 18px;
  font-family: var(--e-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .16em;
}

/* 26. 信条 / 里程碑 */
.e-philos { display: grid; grid-template-columns: repeat(3, 1fr); border: 2px solid var(--e-ink); background: var(--e-ink); gap: 2px; margin-top: 32px; }
.e-philos .e-svc { padding: 32px 30px; }
.e-milestone { display: grid; grid-template-columns: repeat(4, 1fr); border: 2px solid var(--e-ink); background: var(--e-ink); gap: 2px; margin-top: 32px; }
.e-mile { padding: 28px 26px; background: var(--e-paper); transition: background var(--e-speed); }
.e-mile:hover { background: var(--e-yellow); }
.e-mile b { display: block; font-family: var(--e-mono); font-size: clamp(26px, 2.8vw, 38px); font-weight: 700; line-height: 1.1; }
.e-mile span { display: block; font-size: 13.5px; font-weight: 600; letter-spacing: .08em; opacity: .78; margin-top: 8px; }

/* 27. 服务列表行（services.php） */
.e-svcrow {
  display: grid;
  grid-template-columns: 64px 1fr auto auto;
  gap: 26px;
  align-items: center;
  border: 2px solid var(--e-ink);
  background: var(--e-paper-2);
  padding: 26px 30px;
  margin-bottom: -2px;
  transition: background var(--e-speed), transform var(--e-speed), box-shadow var(--e-speed);
}
.e-svcrow:hover { background: var(--e-yellow); transform: translate(-3px, -3px); box-shadow: var(--e-shadow); position: relative; z-index: 2; }
.e-svcrow h3 { font-size: 20px; font-weight: 900; text-transform: uppercase; letter-spacing: .04em; display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.e-svcrow p { font-size: 14.5px; opacity: .8; margin-top: 4px; }
.e-svcrow-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; }
.e-svcrow .e-svc-price { font-size: 16px; }
.e-svcrow .e-svc-price b { font-size: 28px; }
.e-svcrow-btn { white-space: nowrap; }

/* 28. 页脚（纯黑大块 + 黄色细节） */
.e-foot { background: var(--e-ink); color: var(--e-paper); margin-top: 110px; border-top: 6px solid var(--e-yellow); overflow: hidden; }
.e-foot-giant {
  font-size: clamp(64px, 11vw, 150px);
  font-weight: 900;
  letter-spacing: .04em;
  line-height: 1;
  padding: 54px 0 0;
  text-align: center;
  color: transparent;
  -webkit-text-stroke: 1px rgba(244, 242, 237, .28);
  white-space: nowrap;
  user-select: none;
}
.e-foot-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 44px;
  padding: 56px 0 46px;
}
.e-foot-brand .e-logo-mark { background: var(--e-yellow); color: var(--e-ink); box-shadow: 4px 4px 0 rgba(244, 242, 237, .3); }
.e-foot-brand .e-logo:hover .e-logo-mark { background: var(--e-paper); }
.e-foot-note { font-size: 14.5px; opacity: .78; margin: 18px 0 6px; max-width: 320px; }
.e-foot-full { font-family: var(--e-mono); font-size: 12px; letter-spacing: .1em; opacity: .55; }
.e-foot-col h4 {
  font-family: var(--e-mono);
  font-size: 12.5px;
  letter-spacing: .22em;
  color: var(--e-yellow);
  margin-bottom: 18px;
  padding-bottom: 10px;
  border-bottom: 2px solid rgba(244, 242, 237, .25);
}
.e-foot-col li { display: flex; align-items: flex-start; gap: 10px; padding: 6px 0; font-size: 14px; }
.e-foot-col li .e-i { flex: none; margin-top: 4px; color: var(--e-yellow); }
.e-foot-col a { border-bottom: 1px solid rgba(244, 242, 237, .25); padding-bottom: 1px; transition: background var(--e-speed), color var(--e-speed); }
.e-foot-col a:hover { background: var(--e-yellow); color: var(--e-ink); border-bottom-color: var(--e-yellow); }
.e-foot-col li span { opacity: .82; line-height: 1.7; }
.e-foot-bar { border-top: 2px solid rgba(244, 242, 237, .25); padding: 18px 0; }
.e-foot-bar-in {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  font-family: var(--e-mono);
  font-size: 12.5px;
  letter-spacing: .08em;
}
.e-foot-bar-in a { color: var(--e-yellow); border-bottom: 1px solid var(--e-yellow); padding-bottom: 1px; }
.e-foot-bar-in a:hover { background: var(--e-yellow); color: var(--e-ink); }

/* 29. 入场动画 */
.e-rise { animation: e-rise .5s ease both; }
.e-d1 { animation-delay: .07s; }
.e-d2 { animation-delay: .14s; }
@keyframes e-rise {
  from { opacity: 0; transform: translateY(14px); }
  to   { opacity: 1; transform: translateY(0); }
}
@media (prefers-reduced-motion: reduce) {
  .e-rise { animation: none; }
  .e-marquee-track { animation: none; }
  .e-cursor { animation: none; }
}

/* 30. 图标默认着色 */
.e-i { color: currentColor; flex: none; }

/* 31. 响应式 · 920px */
@media (max-width: 920px) {
  .e-nav-links { display: none; }
  .e-burger { display: inline-flex; }
  .e-drawer.open { display: block; }
  .e-hero-grid, .e-about-grid, .e-buy-top, .e-form-grid { grid-template-columns: 1fr; gap: 36px; }
  .e-svc-grid, .e-points { grid-template-columns: repeat(2, 1fr); }
  .e-scenes { grid-template-columns: repeat(2, 1fr); }
  .e-flow, .e-milestone { grid-template-columns: repeat(2, 1fr); }
  .e-stats-grid { grid-template-columns: repeat(2, 1fr); }
  .e-stat:nth-child(2) { border-right: 0; }
  .e-stat:nth-child(-n+2) { border-bottom: 2px solid var(--e-ink); }
  .e-svcrow { grid-template-columns: 56px 1fr; grid-template-rows: auto auto; }
  .e-svcrow .e-svc-price { grid-column: 1 / -1; }
  .e-svcrow-btn { grid-column: 1 / -1; justify-self: start; }
  .e-cta { padding: 40px 34px; }
  .e-foot-grid { grid-template-columns: 1fr 1fr; gap: 36px; }
  .e-case-row { grid-template-columns: 72px 1fr; }
  .e-case-row p { grid-column: 2; }
  .e-section { padding-top: 68px; }
  .e-hero { padding-top: 52px; }
  .e-pagehero { padding-top: 48px; }
}

/* 32. 响应式 · 640px */
@media (max-width: 640px) {
  body.e-body { font-size: 15px; }
  .e-svc-grid, .e-points, .e-scenes, .e-flow, .e-milestone { grid-template-columns: 1fr; }
  .e-stats-grid { grid-template-columns: 1fr; }
  .e-stat { border-right: 0; border-bottom: 2px solid var(--e-ink); }
  .e-stat:last-child { border-bottom: 0; }
  .e-stat:nth-child(-n+2) { border-bottom: 2px solid var(--e-ink); }
  .e-form-row { grid-template-columns: 1fr; }
  .e-paygrid { grid-template-columns: 1fr; }
  .e-hero-actions .e-btn { width: 100%; }
  .e-hero-meta { flex-direction: column; }
  .e-hero-meta span { border-right: 0; border-bottom: 2px solid var(--e-ink); }
  .e-hero-meta span:last-child { border-bottom: 0; }
  .e-formcard, .e-success { padding: 26px 20px; }
  .e-cta { padding: 32px 24px; box-shadow: 6px 6px 0 var(--e-yellow); }
  .e-cta-actions { width: 100%; }
  .e-cta-actions .e-btn { flex: 1; }
  .e-foot-grid { grid-template-columns: 1fr; gap: 30px; }
  .e-foot-giant { white-space: normal; }
  .e-order-row, .e-success-rows .e-order-row { flex-direction: column; gap: 2px; align-items: flex-start; }
  .e-order-row .v { text-align: left; }
  .e-buy-actions .e-btn { flex: 1; }
  .e-success-actions { flex-direction: column; }
  .e-success-actions .e-btn { width: 100%; }
  .e-pricecard-num { font-size: 38px; }
  .e-nav-side .e-btn { display: none; }
  .e-specblock-row { flex-direction: column; gap: 2px; }
}

/* 33. 打印与降级 */
@media print {
  .e-head, .e-foot, .e-marquee, .e-cta-wrap { display: none !important; }
  body.e-body { border-top: 0; }
  .e-card, .e-datasheet, .e-specblock, .e-success, .e-formcard { box-shadow: none; }
}