/* ==========================================================================
   深瞳智电 DeepEye Energy — 官网视觉系统
   浅色科技风 · 明亮通透 · 工程实拍感
   ========================================================================== */

:root {
  /* —— 底色：白 / 极浅蓝灰分层 —— */
  --bg: #ffffff;
  --bg-soft: #f6f9fd;
  --surface: rgba(255, 255, 255, 0.9);
  --surface-2: rgba(15, 40, 80, 0.04);
  --line: rgba(15, 40, 80, 0.09);
  --line-strong: rgba(15, 40, 80, 0.17);

  /* —— 文字：深蓝黑 → 中灰 → 辅助灰 —— */
  --text: #0d1b2e;
  --text-2: #46586f;
  --text-3: #7d8fa6;

  /* —— 品牌色（青蓝紫，浅色底略降明度以保证可读性）—— */
  --cyan: #0891b2;
  --cyan-bright: #22d3ee;
  --blue: #2563eb;
  --violet: #6d3ff0;
  --brand-gradient: linear-gradient(120deg, #0891b2 0%, #2563eb 52%, #6d3ff0 100%);

  --radius: 16px;
  --radius-sm: 10px;
  --shadow: 0 18px 44px -22px rgba(15, 40, 80, 0.26);
  --shadow-lg: 0 30px 70px -30px rgba(15, 40, 80, 0.34);
  --maxw: 1200px;
  --ease: cubic-bezier(.22, .8, .28, 1);

  --font: "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", "Segoe UI", system-ui, -apple-system, sans-serif;
  --mono: "SF Mono", "JetBrains Mono", Consolas, "Courier New", monospace;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 15.5px;
  line-height: 1.72;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }
img, svg { max-width: 100%; display: block; }
button { font-family: inherit; cursor: pointer; }
input, textarea, select { font-family: inherit; }

::selection { background: rgba(34, 211, 238, 0.28); }

/* ---------- 背景氛围（浅色版：极淡网格 + 柔和光晕） ---------- */
.bg-layer {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
}
.bg-grid {
  position: absolute;
  inset: -2px;
  background-image:
    linear-gradient(rgba(15, 40, 80, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(15, 40, 80, 0.045) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse 90% 62% at 50% 0%, #000 12%, transparent 78%);
  -webkit-mask-image: radial-gradient(ellipse 90% 62% at 50% 0%, #000 12%, transparent 78%);
}
.bg-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(90px);
  opacity: 0.30;
}
.bg-orb.o1 { width: 620px; height: 620px; top: -260px; left: -120px; background: radial-gradient(circle, rgba(34,211,238,.30), transparent 68%); }
.bg-orb.o2 { width: 700px; height: 700px; top: -180px; right: -220px; background: radial-gradient(circle, rgba(124,92,255,.20), transparent 68%); }
.bg-orb.o3 { width: 560px; height: 560px; bottom: -300px; left: 42%; background: radial-gradient(circle, rgba(47,139,255,.14), transparent 70%); }

/* ---------- 布局 ---------- */
.wrap { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }
.app { position: relative; z-index: 1; min-height: 100vh; display: flex; flex-direction: column; }
main { flex: 1; }

/* ---------- 顶栏 ---------- */
.header {
  position: sticky;
  top: 0;
  z-index: 60;
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  background: rgba(255, 255, 255, 0.78);
  border-bottom: 1px solid transparent;
  transition: border-color .3s, background .3s, box-shadow .3s;
}
.header.scrolled {
  border-bottom-color: var(--line);
  background: rgba(255, 255, 255, 0.94);
  box-shadow: 0 6px 24px -18px rgba(15, 40, 80, .30);
}
.header-inner {
  display: flex;
  align-items: center;
  gap: 28px;
  height: 74px;
}
.brand { display: flex; align-items: center; gap: 11px; flex-shrink: 0; }
.brand-mark { width: 36px; height: 36px; }
.brand-text { display: flex; flex-direction: column; line-height: 1.18; }
.brand-name { font-size: 18px; font-weight: 700; letter-spacing: 1.5px; }
.brand-sub { font-size: 8.5px; letter-spacing: 2.6px; color: var(--cyan); font-weight: 600; }

.nav { display: flex; gap: 4px; margin-left: auto; }
.nav a {
  position: relative;
  padding: 9px 15px;
  border-radius: 9px;
  font-size: 14.5px;
  color: var(--text-2);
  transition: color .22s, background .22s;
}
.nav a:hover { color: var(--text); background: var(--surface); }
.nav a.active { color: var(--text); }
.nav a.active::after {
  content: "";
  position: absolute;
  left: 15px; right: 15px; bottom: 2px;
  height: 2px;
  border-radius: 2px;
  background: var(--brand-gradient);
}

.header-actions { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 20px;
  border: 1px solid transparent;
  border-radius: 10px;
  font-size: 14.5px;
  font-weight: 500;
  white-space: nowrap;
  transition: transform .18s var(--ease), box-shadow .25s, background .22s, border-color .22s, color .22s;
}
.btn:active { transform: translateY(1px); }
.btn:disabled { opacity: .55; cursor: not-allowed; }

/* 按钮内联图标：SVG 无内建尺寸，必须显式约束，否则会撑满按钮 */
.btn svg { width: 15px; height: 15px; flex: none; }
.btn-lg svg { width: 17px; height: 17px; }

.btn-primary {
  background: var(--brand-gradient);
  color: #04121f;
  font-weight: 600;
  box-shadow: 0 10px 30px -12px rgba(47, 139, 255, .8);
}
.btn-primary:hover:not(:disabled) { box-shadow: 0 16px 40px -12px rgba(47, 139, 255, .95); transform: translateY(-1px); }

.btn-ghost {
  background: var(--surface);
  border-color: var(--line);
  color: var(--text);
}
.btn-ghost:hover:not(:disabled) { background: var(--surface-2); border-color: var(--line-strong); }

.btn-quiet { background: transparent; color: var(--text-2); padding: 9px 13px; }
.btn-quiet:hover { color: var(--text); background: var(--surface); }

.btn-lg { padding: 13px 28px; font-size: 15.5px; border-radius: 12px; }
.btn-block { width: 100%; }

/* ---------- 用户胶囊 ---------- */
.user-chip {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 5px 13px 5px 5px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--surface);
  transition: border-color .22s, background .22s;
}
.user-chip:hover { border-color: var(--line-strong); background: var(--surface-2); }
.user-avatar {
  width: 27px; height: 27px;
  border-radius: 50%;
  background: var(--brand-gradient);
  display: grid; place-items: center;
  font-size: 12.5px; font-weight: 700; color: #04121f;
  flex-shrink: 0;
}
.user-mail { font-size: 13.5px; color: var(--text-2); max-width: 132px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* ---------- 移动端菜单 ---------- */
.menu-toggle { display: none; }

/* ---------- 通用区块 ---------- */
.section { padding: 92px 0; position: relative; }
.section-sm { padding: 60px 0; }
.section-soft {
  background: linear-gradient(180deg, rgba(34, 211, 238, .028), rgba(124, 92, 255, .028));
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.note-line {
  margin: 26px 0 0;
  font-size: 12.8px;
  color: var(--text-3);
  line-height: 1.8;
  padding-left: 14px;
  border-left: 2px solid var(--line-strong);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-size: 12.5px;
  letter-spacing: 2.4px;
  text-transform: uppercase;
  color: var(--cyan);
  font-weight: 600;
  margin-bottom: 18px;
}
.eyebrow::before {
  content: "";
  width: 22px; height: 1px;
  background: linear-gradient(90deg, transparent, var(--cyan));
}

h1, h2, h3, h4 { margin: 0; line-height: 1.28; font-weight: 700; letter-spacing: .4px; }
h1 { font-size: clamp(34px, 4.6vw, 56px); }
h2 { font-size: clamp(26px, 3vw, 38px); }
h3 { font-size: 19px; }

.lead { font-size: 17px; color: var(--text-2); line-height: 1.85; margin: 18px 0 0; }
.muted { color: var(--text-3); }

.gradient-text {
  background: var(--brand-gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.section-head { max-width: 720px; margin-bottom: 52px; }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.section-head.center .eyebrow::before { display: none; }

/* ---------- Hero ---------- */
.hero { padding: 104px 0 84px; position: relative; }
.hero-grid {
  display: grid;
  grid-template-columns: 1.08fr .92fr;
  gap: 64px;
  align-items: center;
}
.hero h1 { margin-bottom: 4px; }
.hero .lead { max-width: 560px; }
.hero-cta { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 36px; }

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  margin-top: 52px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--line);
  overflow: hidden;
}
.hero-stat { background: var(--bg-soft); padding: 22px 20px; }
.hero-stat strong {
  display: block;
  font-size: 27px;
  font-weight: 700;
  background: var(--brand-gradient);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero-stat span { font-size: 12.5px; color: var(--text-3); letter-spacing: .5px; }

/* ---------- Hero 实拍图带 ---------- */
.showcase {
  position: relative;
  margin-top: -18px;
  padding: 0 0 8px;
}
.showcase-frame {
  position: relative;
  border: 1px solid var(--line);
  border-radius: 24px;
  overflow: hidden;
  box-shadow: 0 40px 90px -46px rgba(15, 40, 80, .42);
  background: var(--bg-soft);
}
.showcase-frame img {
  display: block;
  width: 100%;
  height: clamp(280px, 42vw, 520px);
  object-fit: cover;
  object-position: center;
}
/* 底部渐隐，让白底与实拍图自然衔接 */
.showcase-frame::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: 0;
  height: 46%;
  background: linear-gradient(to top, rgba(255, 255, 255, .97) 12%, rgba(255, 255, 255, .72) 46%, rgba(255, 255, 255, 0));
  pointer-events: none;
  z-index: 1;
}
.showcase-cap {
  position: absolute;
  left: 0; right: 0; bottom: 0;
  padding: 0 42px 34px;
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 28px;
  flex-wrap: wrap;
  z-index: 2;
}
.showcase-cap h3 {
  font-size: clamp(18px, 1.9vw, 23px);
  margin: 0 0 6px;
  color: var(--text);
}
.showcase-cap p {
  margin: 0;
  font-size: 13.8px;
  color: var(--text-2);
  max-width: 560px;
  line-height: 1.7;
}
.showcase-cap .showcase-tag {
  flex-shrink: 0;
  font-size: 12px;
  letter-spacing: 1.4px;
  text-transform: uppercase;
  color: var(--cyan);
  font-weight: 600;
  padding: 7px 14px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  background: rgba(255, 255, 255, .82);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  white-space: nowrap;
}

/* ---------- 双栏图文（解决方案 / 技术页） ---------- */
.split-figure {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 22px 54px -34px rgba(15, 40, 80, .38);
  background: var(--bg-soft);
}
.split-figure img { display: block; width: 100%; height: auto; }

/* ---------- 图卡（案例 / 解决方案卡片配图） ---------- */
.card-figure {
  border: 1px solid var(--line);
  border-radius: 14px;
  overflow: hidden;
  background: var(--bg-soft);
}
.card-figure img { display: block; width: 100%; height: 180px; object-fit: cover; }

/* 终端演示卡片 */
.terminal {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(160deg, rgba(12, 22, 40, .96), rgba(7, 13, 25, .96));
  box-shadow: var(--shadow);
  overflow: hidden;
}
.terminal-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 16px;
  border-bottom: 1px solid var(--line);
  background: var(--bg-soft);
}
.dot { width: 10px; height: 10px; border-radius: 50%; }
.dot.r { background: #ff5f57; } .dot.y { background: #febc2e; } .dot.g { background: #28c840; }
.terminal-title { margin-left: 8px; font-size: 12px; color: var(--text-3); font-family: var(--mono); letter-spacing: .5px; }
.terminal-body { padding: 20px 18px; font-family: var(--mono); font-size: 12.8px; line-height: 2.05; }
.terminal-body .row { display: flex; gap: 10px; opacity: 0; animation: fadeUp .5s var(--ease) forwards; }
.terminal-body .row:nth-child(1) { animation-delay: .15s; }
.terminal-body .row:nth-child(2) { animation-delay: .45s; }
.terminal-body .row:nth-child(3) { animation-delay: .75s; }
.terminal-body .row:nth-child(4) { animation-delay: 1.05s; }
.terminal-body .row:nth-child(5) { animation-delay: 1.35s; }
.terminal-body .row:nth-child(6) { animation-delay: 1.65s; }
.terminal-body .row:nth-child(7) { animation-delay: 1.95s; }
.t-key { color: var(--text-3); }
.t-val { color: var(--cyan); }
.t-ok { color: #46e6a0; }
.t-warn { color: #febc2e; }
.t-dim { color: var(--text-3); }

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ---------- 卡片网格 ---------- */
.grid { display: grid; gap: 20px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

.card {
  position: relative;
  padding: 28px 26px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  transition: transform .3s var(--ease), border-color .3s, background .3s;
  overflow: hidden;
}
.card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(34, 211, 238, .55), transparent);
  opacity: 0;
  transition: opacity .35s;
}
.card:hover { transform: translateY(-4px); border-color: var(--line-strong); background: var(--surface-2); }
.card:hover::before { opacity: 1; }
.card h3 { margin-bottom: 10px; }
.card p { margin: 0; color: var(--text-2); font-size: 14.5px; }

.card-icon {
  width: 46px; height: 46px;
  border-radius: 12px;
  display: grid; place-items: center;
  margin-bottom: 20px;
  background: linear-gradient(145deg, rgba(34, 211, 238, .16), rgba(124, 92, 255, .16));
  border: 1px solid var(--line);
  color: var(--cyan);
}
.card-icon svg { width: 23px; height: 23px; }

.card-tag {
  position: absolute;
  top: 20px; right: 20px;
  font-size: 10.5px;
  letter-spacing: 1.4px;
  text-transform: uppercase;
  color: var(--text-3);
  font-family: var(--mono);
}

/* ---------- 特性列表 ---------- */
.feature-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
  padding: 34px 0;
}
.feature-row.reverse .feature-media { order: -1; }

.check-list { list-style: none; padding: 0; margin: 24px 0 0; display: grid; gap: 13px; }
.check-list li { display: flex; gap: 12px; align-items: flex-start; font-size: 14.5px; color: var(--text-2); }
.check-list .tick {
  flex-shrink: 0;
  width: 19px; height: 19px;
  margin-top: 2px;
  border-radius: 50%;
  display: grid; place-items: center;
  background: rgba(34, 211, 238, .14);
  border: 1px solid rgba(34, 211, 238, .35);
  color: var(--cyan);
  font-size: 11px;
  font-weight: 700;
}
.check-list .tick svg { width: 10px; height: 10px; }

/* ---------- 流程时间线 ---------- */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; counter-reset: step; }
.step {
  position: relative;
  padding: 26px 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
}
.step::after {
  content: "";
  position: absolute;
  top: 40px; right: -20px;
  width: 20px; height: 1px;
  background: var(--line-strong);
}
.step:last-child::after { display: none; }
.step-no {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--cyan);
  letter-spacing: 1.5px;
  margin-bottom: 14px;
}
.step h3 { font-size: 16.5px; margin-bottom: 8px; }
.step p { margin: 0; font-size: 13.8px; color: var(--text-3); }

/* ---------- 数据面板 ---------- */
.metric-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--line);
  overflow: hidden;
}
.metric { background: var(--bg-soft); padding: 26px 22px; }
.metric strong { display: block; font-size: 24px; color: var(--text); font-weight: 700; }
.metric span { font-size: 12.5px; color: var(--text-3); }

/* ---------- 关于我们 ---------- */
.value-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }

.timeline { position: relative; padding-left: 30px; margin-top: 8px; }
.timeline::before {
  content: "";
  position: absolute;
  left: 7px; top: 6px; bottom: 6px;
  width: 1px;
  background: linear-gradient(180deg, var(--cyan), rgba(124, 92, 255, .5), transparent);
}
.tl-item { position: relative; padding-bottom: 30px; }
.tl-item:last-child { padding-bottom: 0; }
.tl-item::before {
  content: "";
  position: absolute;
  left: -27px; top: 8px;
  width: 9px; height: 9px;
  border-radius: 50%;
  background: var(--bg);
  border: 2px solid var(--cyan);
  box-shadow: 0 0 0 4px rgba(34, 211, 238, .1);
}
.tl-year { font-family: var(--mono); font-size: 12px; color: var(--cyan); letter-spacing: 1.4px; }
.tl-item h3 { font-size: 16px; margin: 5px 0 6px; }
.tl-item p { margin: 0; font-size: 14px; color: var(--text-2); }

/* ---------- 团队/资质 ---------- */
.badge-row { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 26px; }
.badge {
  padding: 7px 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--surface);
  font-size: 13px;
  color: var(--text-2);
}

/* ---------- 联系页 ---------- */
.contact-grid { display: grid; grid-template-columns: .92fr 1.08fr; gap: 46px; align-items: start; }

.info-list { display: grid; gap: 4px; margin-top: 30px; }
.info-item {
  display: flex;
  gap: 15px;
  padding: 17px 18px;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  transition: border-color .25s, background .25s;
}
.info-item:hover { border-color: var(--line); background: var(--surface); }
.info-icon {
  flex-shrink: 0;
  width: 38px; height: 38px;
  border-radius: 10px;
  display: grid; place-items: center;
  background: rgba(34, 211, 238, .1);
  border: 1px solid var(--line);
  color: var(--cyan);
}
.info-icon svg { width: 18px; height: 18px; }
.info-item dt { font-size: 12.5px; color: var(--text-3); margin-bottom: 3px; letter-spacing: .5px; }
.info-item dd { margin: 0; font-size: 14.8px; color: var(--text); }

/* ---------- 表单 ---------- */
.form-card {
  padding: 34px 32px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #ffffff;
  box-shadow: var(--shadow);
}
.field { margin-bottom: 18px; }
.field label {
  display: block;
  font-size: 13px;
  color: var(--text-2);
  margin-bottom: 8px;
  letter-spacing: .4px;
}
.field label .req { color: var(--cyan); margin-left: 3px; }
.input, .textarea, .select {
  width: 100%;
  padding: 12px 14px;
  background: var(--bg-soft);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-size: 14.5px;
  outline: none;
  transition: border-color .22s, box-shadow .22s, background .22s;
}
.input::placeholder, .textarea::placeholder { color: var(--text-3); }
.input:focus, .textarea:focus, .select:focus {
  border-color: rgba(8, 145, 178, .5);
  box-shadow: 0 0 0 3px rgba(34, 211, 238, .14);
  background: #ffffff;
}
.textarea { resize: vertical; min-height: 118px; line-height: 1.7; }
.select { appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 12'%3E%3Cpath d='M2 4l4 4 4-4' stroke='%237d8fa6' stroke-width='1.6' fill='none' stroke-linecap='round'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 14px center; background-size: 12px; padding-right: 38px; }
.select option { background: #ffffff; color: var(--text); }

.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }

/* ---------- 提示条 ---------- */
.alert {
  display: flex;
  gap: 11px;
  align-items: flex-start;
  padding: 12px 15px;
  border-radius: var(--radius-sm);
  font-size: 13.8px;
  line-height: 1.65;
  margin-bottom: 16px;
  border: 1px solid transparent;
}
.alert-err { background: rgba(220, 38, 38, .07); border-color: rgba(220, 38, 38, .28); color: #b42318; }
.alert-ok { background: rgba(5, 150, 105, .08); border-color: rgba(5, 150, 105, .26); color: #067647; }
.alert-info { background: rgba(34, 211, 238, .08); border-color: rgba(34, 211, 238, .3); color: #9fe8f5; }
.alert svg { width: 16px; height: 16px; flex-shrink: 0; margin-top: 3px; }

/* ---------- 登录弹层 ---------- */
.modal-mask {
  position: fixed;
  inset: 0;
  z-index: 200;
  display: grid;
  place-items: center;
  padding: 24px;
  background: rgba(13, 27, 46, .38);
  backdrop-filter: blur(9px);
  -webkit-backdrop-filter: blur(9px);
  animation: maskIn .22s ease;
}
@keyframes maskIn { from { opacity: 0; } to { opacity: 1; } }

.modal {
  width: 100%;
  max-width: 428px;
  max-height: 92vh;
  overflow-y: auto;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: #ffffff;
  box-shadow: var(--shadow-lg);
  padding: 32px 30px;
  animation: modalIn .3s var(--ease);
}
@keyframes modalIn { from { opacity: 0; transform: translateY(14px) scale(.98); } to { opacity: 1; transform: none; } }

.modal-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 16px; margin-bottom: 22px; }
.modal-head h2 { font-size: 22px; }
.modal-head p { margin: 6px 0 0; font-size: 13.5px; color: var(--text-3); }
.modal-close {
  background: transparent; border: none; color: var(--text-3);
  font-size: 22px; line-height: 1; padding: 2px 6px; border-radius: 8px;
  transition: color .2s, background .2s;
}
.modal-close:hover { color: var(--text); background: var(--surface); }

.tabs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4px;
  padding: 4px;
  border: 1px solid var(--line);
  border-radius: 11px;
  background: var(--bg-soft);
  margin-bottom: 22px;
}
.tab {
  padding: 9px;
  border: none;
  border-radius: 8px;
  background: transparent;
  color: var(--text-2);
  font-size: 14px;
  font-weight: 500;
  transition: background .22s, color .22s;
}
.tab.active { background: #ffffff; color: var(--text); box-shadow: 0 1px 3px rgba(15, 40, 80, .10); }

/* 验证码输入 */
.otp-row { display: grid; grid-template-columns: 1fr auto; gap: 10px; align-items: stretch; }
.otp-input { font-family: var(--mono); font-size: 19px; letter-spacing: 7px; text-align: center; }
.link-btn {
  background: transparent; border: none; padding: 0;
  color: var(--cyan); font-size: 13.5px;
  transition: opacity .2s;
}
.link-btn:hover { opacity: .8; }
.link-btn:disabled { color: var(--text-3); cursor: not-allowed; }

.form-foot { display: flex; justify-content: space-between; align-items: center; gap: 14px; margin-top: 18px; font-size: 13.5px; color: var(--text-3); flex-wrap: wrap; }
.form-foot-right { margin-left: auto; text-align: right; }

/* ---------- 用户中心面板 ---------- */
.drawer-mask {
  position: fixed; inset: 0; z-index: 190;
  background: rgba(13, 27, 46, .34);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  animation: maskIn .2s ease;
}
.drawer {
  position: fixed;
  top: 0; right: 0; bottom: 0;
  z-index: 195;
  width: min(480px, 100%);
  background: #ffffff;
  border-left: 1px solid var(--line);
  box-shadow: -30px 0 80px -30px rgba(15, 40, 80, .30);
  display: flex;
  flex-direction: column;
  animation: drawerIn .32s var(--ease);
}
@keyframes drawerIn { from { transform: translateX(100%); } to { transform: none; } }

.drawer-head {
  padding: 24px 26px;
  border-bottom: 1px solid var(--line);
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
}
.drawer-body { flex: 1; overflow-y: auto; padding: 24px 26px; }

.panel-user { display: flex; align-items: center; gap: 15px; margin-bottom: 26px; }
.panel-user .user-avatar { width: 50px; height: 50px; font-size: 19px; }
.panel-user strong { display: block; font-size: 15.5px; word-break: break-all; }
.panel-user span { font-size: 12.5px; color: var(--text-3); }

.tabs-line { display: flex; gap: 3px; border-bottom: 1px solid var(--line); margin-bottom: 22px; }
.tab-line {
  padding: 10px 15px;
  border: none; background: transparent;
  color: var(--text-3); font-size: 14px;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  transition: color .22s, border-color .22s;
}
.tab-line.active { color: var(--text); border-bottom-color: var(--cyan); }
.tab-line:hover { color: var(--text-2); }

.list-item {
  padding: 16px 17px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--surface);
  margin-bottom: 11px;
}
.list-item-top { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 7px; }
.list-item-top strong { font-size: 14.5px; font-weight: 600; }
.list-item p { margin: 0; font-size: 13.5px; color: var(--text-2); line-height: 1.7; white-space: pre-wrap; word-break: break-word; }
.list-meta { font-size: 12px; color: var(--text-3); font-family: var(--mono); margin-top: 9px; }

.pill {
  font-size: 11px; padding: 3px 9px; border-radius: 999px;
  border: 1px solid var(--line-strong); color: var(--cyan);
  background: rgba(34, 211, 238, .08);
  white-space: nowrap;
}

.empty {
  text-align: center;
  padding: 46px 20px;
  color: var(--text-3);
  font-size: 14px;
}
.empty svg { width: 40px; height: 40px; margin: 0 auto 14px; opacity: .4; }

.spinner {
  width: 17px; height: 17px;
  border: 2px solid rgba(255, 255, 255, .22);
  border-top-color: #04121f;
  border-radius: 50%;
  animation: spin .7s linear infinite;
}
.spinner.light { border-color: rgba(15, 40, 80, .16); border-top-color: var(--cyan); }
@keyframes spin { to { transform: rotate(360deg); } }

.skeleton {
  height: 78px;
  border-radius: var(--radius-sm);
  background: linear-gradient(90deg, rgba(15,40,80,.04), rgba(15,40,80,.09), rgba(15,40,80,.04));
  background-size: 200% 100%;
  animation: shimmer 1.4s infinite;
  margin-bottom: 11px;
}
@keyframes shimmer { to { background-position: -200% 0; } }

/* ---------- CTA 区块 ---------- */
.cta-band {
  position: relative;
  padding: 62px 54px;
  border: 1px solid var(--line);
  border-radius: 22px;
  background:
    radial-gradient(ellipse 60% 130% at 12% 0%, rgba(34, 211, 238, .16), transparent 62%),
    radial-gradient(ellipse 60% 130% at 88% 100%, rgba(124, 92, 255, .15), transparent 62%),
    linear-gradient(160deg, #ffffff, #eef4fd);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
  overflow: hidden;
}
.cta-band h2 { font-size: clamp(23px, 2.6vw, 32px); }
.cta-band p { margin: 12px 0 0; color: var(--text-2); max-width: 520px; }
.cta-band .btn { flex-shrink: 0; }

/* ---------- 页脚 ---------- */
.footer {
  border-top: 1px solid var(--line);
  background: var(--bg-soft);
  padding: 56px 0 30px;
  margin-top: 40px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 36px;
  border-bottom: 1px solid var(--line);
}
.footer-brand p { margin: 16px 0 0; font-size: 13.8px; color: var(--text-3); max-width: 320px; line-height: 1.85; }
.footer h4 {
  font-size: 12.5px;
  letter-spacing: 1.6px;
  text-transform: uppercase;
  color: var(--text-3);
  font-weight: 600;
  margin-bottom: 16px;
}
.footer ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 11px; }
.footer ul a { font-size: 14px; color: var(--text-2); transition: color .2s; }
.footer ul a:hover { color: var(--cyan); }
.footer-bottom {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding-top: 26px;
  font-size: 12.8px;
  color: var(--text-3);
  flex-wrap: wrap;
}

/* ---------- 页面过渡 ---------- */
.page-enter { animation: pageIn .42s var(--ease); }
@keyframes pageIn { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: none; } }

.reveal { opacity: 0; transform: translateY(20px); transition: opacity .7s var(--ease), transform .7s var(--ease); }
.reveal.in { opacity: 1; transform: none; }

/* ---------- 顶部进度条 ---------- */
.scroll-progress {
  position: fixed;
  top: 0; left: 0;
  height: 2px;
  width: 0;
  z-index: 100;
  background: var(--brand-gradient);
  transition: width .1s linear;
}

/* ---------- 轻提示 ---------- */
.toast-host {
  position: fixed;
  top: 88px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 300;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 9px;
  pointer-events: none;
  width: max-content;
  max-width: calc(100vw - 32px);
}
.toast {
  padding: 11px 20px;
  border-radius: 999px;
  font-size: 14px;
  color: var(--text);
  background: rgba(255, 255, 255, .97);
  border: 1px solid var(--line-strong);
  box-shadow: 0 16px 40px -16px rgba(15, 40, 80, .38);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  animation: toastIn .3s var(--ease);
  transition: opacity .3s, transform .3s;
  text-align: center;
}
.toast-ok { border-color: rgba(70, 230, 160, .42); color: #a7f3cd; }
.toast-err { border-color: rgba(255, 110, 120, .45); color: #ffb3b8; }
.toast.out { opacity: 0; transform: translateY(-10px); }
@keyframes toastIn { from { opacity: 0; transform: translateY(-12px); } to { opacity: 1; transform: none; } }

/* ---------- 响应式 ---------- */
@media (max-width: 1080px) {
  .hero-grid { grid-template-columns: 1fr; gap: 48px; }
  .hero { padding: 72px 0 60px; }
  .feature-row { grid-template-columns: 1fr; gap: 30px; }
  .feature-row.reverse .feature-media { order: 0; }
  .contact-grid { grid-template-columns: 1fr; gap: 34px; }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .step::after { display: none; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
}

@media (max-width: 860px) {
  .nav {
    position: fixed;
    top: 74px; left: 0; right: 0;
    flex-direction: column;
    gap: 2px;
    padding: 14px 20px 22px;
    background: rgba(255, 255, 255, .98);
    border-bottom: 1px solid var(--line);
    transform: translateY(-130%);
    transition: transform .32s var(--ease);
    z-index: 55;
  }
  .nav.open { transform: none; }
  .nav a { padding: 13px 15px; font-size: 15.5px; }
  .nav a.active::after { left: 15px; right: auto; width: 24px; bottom: 6px; }
  .menu-toggle {
    display: grid; place-items: center;
    width: 38px; height: 38px;
    margin-left: auto;
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: 10px;
    color: var(--text);
  }
  .nav { margin-left: 0; }
  .header-actions { margin-left: 0; }
  .user-mail { display: none; }
  .hero-stats { grid-template-columns: 1fr; }
  .grid-3, .grid-2 { grid-template-columns: 1fr; }
  .metric-strip { grid-template-columns: repeat(2, 1fr); }
  .value-row { grid-template-columns: 1fr; }
  .cta-band { flex-direction: column; align-items: flex-start; padding: 40px 30px; }
  .section { padding: 64px 0; }
  .form-card { padding: 26px 22px; }
  .field-row { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .footer-bottom { flex-direction: column; gap: 8px; }
}

@media (max-width: 560px) {
  .wrap { padding: 0 18px; }
  .grid-4 { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr; }
  .hero-cta { flex-direction: column; }
  .hero-cta .btn { width: 100%; }
  .metric-strip { grid-template-columns: 1fr; }
  .modal { padding: 26px 20px; }
}

/* ---------- 内页标题区 / 面包屑 ---------- */
.page-hero {
  padding: 76px 0 58px;
  position: relative;
  border-bottom: 1px solid var(--line);
}
.crumb { display: flex; align-items: center; gap: 9px; font-size: 12.5px; color: var(--text-3); margin-bottom: 26px; }
.crumb a { color: var(--text-3); transition: color .2s; }
.crumb a:hover { color: var(--cyan); }
.crumb span { color: var(--text-2); }
.crumb span::before { content: "/"; margin-right: 9px; color: var(--text-3); }
.page-title { font-size: clamp(30px, 4vw, 52px); line-height: 1.22; margin-bottom: 2px; }
.page-hero .lead { max-width: 720px; }

/* ---------- 双引擎卡 ---------- */
.engine-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; }
.engine-card {
  position: relative;
  padding: 40px 36px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(165deg, #ffffff, #f4f8fe);
  box-shadow: 0 14px 36px -26px rgba(15, 40, 80, .30);
  transition: transform .3s var(--ease), border-color .3s, box-shadow .3s;
}
.engine-card:hover { border-color: var(--line-strong); transform: translateY(-3px); box-shadow: 0 22px 48px -26px rgba(15, 40, 80, .38); }
.engine-card h3 { font-size: 22px; margin-bottom: 10px; }
.engine-card > p { margin: 0; color: var(--text-2); font-size: 14.5px; }

/* ---------- 能力/资产卡补充 ---------- */
.card-asset { display: block; }
.card-more { border-style: dashed; }
.card-more:hover { border-style: solid; }
.card-more .card-icon { color: var(--violet); background: linear-gradient(145deg, rgba(124, 92, 255, .16), rgba(34, 211, 238, .12)); }

/* ---------- 护城河卡 ---------- */
.card-moat { padding-top: 34px; }
.moat-no {
  position: absolute;
  top: 22px; right: 22px;
  font-family: var(--mono);
  font-size: 26px;
  font-weight: 700;
  color: rgba(15, 40, 80, .13);
  letter-spacing: 1px;
  line-height: 1;
}

/* ---------- 五步流程 ---------- */
.steps-5 { grid-template-columns: repeat(5, 1fr); }
.steps-5 .step { padding: 24px 20px; }

/* ---------- FAQ ---------- */
.faq-list { max-width: 880px; margin: 0 auto; display: grid; gap: 12px; }
.faq-item {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  transition: border-color .25s, background .25s;
  overflow: hidden;
}
.faq-item:hover { border-color: var(--line-strong); }
.faq-item[open] { background: var(--surface-2); border-color: var(--line-strong); }
.faq-item summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 21px 24px;
  cursor: pointer;
  list-style: none;
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  transition: color .2s;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-icon {
  flex-shrink: 0;
  width: 26px; height: 26px;
  border-radius: 50%;
  display: grid; place-items: center;
  border: 1px solid var(--line-strong);
  color: var(--cyan);
  transition: transform .28s var(--ease), background .25s;
}
.faq-icon svg { width: 13px; height: 13px; }
.faq-item[open] .faq-icon { transform: rotate(45deg); background: rgba(34, 211, 238, .12); }
.faq-body { padding: 0 24px 22px; }
.faq-body p { margin: 0; color: var(--text-2); font-size: 14.5px; line-height: 1.85; }

/* ---------- 服务范围（运营服务两条主线） ---------- */
.service-list { display: grid; gap: 20px; }
.service-row {
  display: grid;
  grid-template-columns: 132px 1fr;
  gap: 36px;
  padding: 38px 40px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  transition: border-color .3s, background .3s;
}
.service-row:hover { border-color: var(--line-strong); background: var(--surface-2); }
.service-side { display: flex; flex-direction: column; gap: 16px; align-items: flex-start; }
.service-no {
  font-family: var(--mono);
  font-size: 34px;
  font-weight: 700;
  line-height: 1;
  background: var(--brand-gradient);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.service-main h3 { font-size: 21px; margin-bottom: 10px; }
.service-main > p { margin: 0; color: var(--text-2); font-size: 14.5px; }
.service-main .check-list { grid-template-columns: 1fr 1fr; display: grid; }

/* ---------- 案例卡 ---------- */
.case-list { display: grid; gap: 24px; }
.case-card {
  border: 1px solid var(--line);
  border-radius: 20px;
  background: linear-gradient(165deg, #ffffff, #f6f9fe);
  box-shadow: 0 14px 36px -26px rgba(15, 40, 80, .28);
  overflow: hidden;
  transition: border-color .3s, transform .3s var(--ease), box-shadow .3s;
}
.case-card:hover { border-color: var(--line-strong); transform: translateY(-2px); box-shadow: 0 22px 48px -26px rgba(15, 40, 80, .36); }
.case-head {
  padding: 36px 40px 30px;
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(ellipse 46% 160% at 0% 0%, rgba(34, 211, 238, .1), transparent 62%),
    radial-gradient(ellipse 46% 160% at 100% 100%, rgba(124, 92, 255, .12), transparent 62%);
}
.case-head-left { display: flex; align-items: center; gap: 13px; margin-bottom: 18px; flex-wrap: wrap; }
.case-no { font-family: var(--mono); font-size: 12px; letter-spacing: 2px; color: var(--cyan); }
.case-head h2 { font-size: clamp(23px, 2.4vw, 30px); }
.case-scale { margin: 10px 0 0; font-size: 13.5px; color: var(--text-3); }
.case-body { display: grid; grid-template-columns: 1fr 400px; gap: 44px; padding: 34px 40px 38px; }
.case-desc > p { margin: 0; color: var(--text-2); font-size: 14.5px; }
.case-desc .check-list { margin-top: 20px; }
.case-metrics { display: grid; gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: var(--radius-sm); overflow: hidden; align-content: start; }
.case-metric { background: var(--bg-soft); padding: 26px 24px; }
.case-metric strong {
  display: block;
  font-size: 40px;
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -.5px;
  background: var(--brand-gradient);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.case-metric span { display: block; margin-top: 8px; font-size: 12.8px; color: var(--text-3); letter-spacing: .3px; }

/* ---------- 响应式：内页 ---------- */
@media (max-width: 1080px) {
  .steps-5 { grid-template-columns: repeat(3, 1fr); }
  .case-body { grid-template-columns: 1fr; gap: 28px; }
  .case-metrics { grid-template-columns: 1fr 1fr; }
  .service-main .check-list { grid-template-columns: 1fr; }
}

@media (max-width: 860px) {
  .engine-grid { grid-template-columns: 1fr; gap: 16px; }
  .engine-card { padding: 30px 26px; }
  .steps-5 { grid-template-columns: repeat(2, 1fr); }
  .page-hero { padding: 52px 0 40px; }
  .crumb { margin-bottom: 20px; }
  .service-row { grid-template-columns: 1fr; gap: 18px; padding: 28px 24px; }
  .service-side { flex-direction: row; align-items: center; gap: 14px; }
  .service-no { font-size: 26px; }
  .case-head { padding: 28px 24px 24px; }
  .case-body { padding: 26px 24px 30px; }
  .case-metric { padding: 20px 18px; }
  .case-metric strong { font-size: 30px; }
  .faq-item summary { padding: 18px 20px; font-size: 15px; }
  .faq-body { padding: 0 20px 20px; }
}

@media (max-width: 560px) {
  .steps-5 { grid-template-columns: 1fr; }
  .case-metrics { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
  html { scroll-behavior: auto; }
}