/* ═════════════════════════════════════════════════════════════
   中泓智能 GEO · 全新站设计系统「深空泓蓝」v1.0
   全站唯一共享样式 —— 导航/按钮/卡片/字阶全站一套规格
   ═════════════════════════════════════════════════════════════ */

/* ---------- 设计令牌 ---------- */
:root {
  /* 品牌色 */
  --blue: #0e5bb8;            /* 泓蓝·主 */
  --blue-deep: #0c4a9c;
  --blue-ink: #0a1f3d;        /* 墨蓝·深 */
  --cyan: #0891ae;            /* 青·点缀 */
  --cyan-bright: #22d3ee;     /* 辉光青·深底提亮 */
  --blue-bright: #5eb3ff;     /* 辉光蓝·深底文字 */
  --mist: #f7fafc;            /* 晨雾白·内容区底 */
  --white: #ffffff;

  /* 文字（浅底区） */
  --fg: #0f2c46;
  --fg-2: #3d5a75;
  --fg-3: #5a748c;
  --line: #dfe9f3;
  --line-2: #cfe0ef;

  /* 文字（深底区） */
  --dfg: #eaf3fc;
  --dfg-2: #a8c2dc;
  --dfg-3: #7d9cbc;
  --dline: rgba(142, 180, 220, 0.14);

  /* 功能 */
  --ok: #0fa968; --warn: #e8a33d; --err: #d64550;

  /* 渐变 */
  --grad-cta: linear-gradient(120deg, #0e5bb8 0%, #0891ae 100%);
  --grad-cta-hi: linear-gradient(120deg, #1265cc 0%, #0aa4c4 100%);
  --grad-text: linear-gradient(100deg, #5eb3ff 10%, #22d3ee 90%);
  --grad-hero: radial-gradient(1100px 620px at 78% -10%, rgba(14,91,184,.42), transparent 62%),
               radial-gradient(900px 540px at -8% 108%, rgba(8,145,174,.28), transparent 60%),
               linear-gradient(175deg, #0a1a30 0%, #081426 52%, #061020 100%);
  --grad-num: linear-gradient(115deg, #0e5bb8, #0891ae);

  /* 规格（全站唯一来源，禁止页面私改） */
  --nav-h: 72px;
  --btn-h: 48px;
  --btn-h-sm: 42px;
  --radius: 14px;
  --radius-lg: 20px;
  --radius-sm: 9px;
  --r-sm: 9px; --r-md: 13px; --r-lg: 20px; --r-xl: 24px;
  --ring: 0 0 0 4px rgba(14,91,184,.13);
  --wrap: 1200px;
  --shadow-1: 0 1px 2px rgba(10,31,61,.05), 0 10px 30px -12px rgba(14,91,184,.14);
  --shadow-2: 0 2px 4px rgba(10,31,61,.06), 0 24px 56px -18px rgba(14,91,184,.26);
  --shadow-deep: 0 30px 90px -30px rgba(4,16,34,.85);
  --ease: cubic-bezier(.4,0,.2,1);
  --t: .25s var(--ease);
  --font: -apple-system, BlinkMacSystemFont, 'PingFang SC', 'MiSans', 'HarmonyOS Sans SC',
          'Microsoft YaHei', 'Segoe UI', Roboto, sans-serif;
}

/* ---------- Reset & 基底 ---------- */
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font);
  color: var(--fg);
  background: var(--mist);
  font-size: 16px; line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
::selection { background: rgba(14,91,184,.22); }
body { font-feature-settings: 'tnum' 1; }

/* 深底区文字 */
.on-dark { color: var(--dfg); }

/* ---------- 布局 ---------- */
.wrap { width: min(var(--wrap), 92vw); margin: 0 auto; }
.section { padding: 96px 0; }
.section-tight { padding: 68px 0; }
.dark-zone { background: var(--grad-hero); color: var(--dfg); }
.dark-zone-flat { background: linear-gradient(180deg,#0a1a30,#081426); color: var(--dfg); }

/* ---------- 章节头 ---------- */
.eyebrow {
  display: inline-flex; align-items: center; gap: 9px;
  font-size: 13px; font-weight: 700; letter-spacing: .18em;
  color: var(--cyan); text-transform: uppercase; margin-bottom: 18px;
}
.eyebrow::before { content: ''; width: 26px; height: 2px; background: var(--grad-cta); border-radius: 2px; }
.dark-zone .eyebrow, .dark-zone-flat .eyebrow { color: var(--cyan-bright); }
h1,h2,h3,h4 { line-height: 1.28; letter-spacing: -.015em; font-weight: 800; }
.sec-title { font-size: clamp(27px, 3.6vw, 42px); }
.sec-sub { color: var(--fg-2); font-size: 17px; margin-top: 14px; max-width: 640px; }
.dark-zone .sec-sub, .dark-zone-flat .sec-sub { color: var(--dfg-2); }
.sec-head { margin-bottom: 52px; }
.sec-head.center { text-align: center; }
.sec-head.center .sec-sub { margin-left: auto; margin-right: auto; }

/* ---------- 按钮（全站唯一规格） ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 9px;
  height: var(--btn-h); padding: 0 30px;
  border-radius: 11px; font-size: 16px; font-weight: 700; letter-spacing: .01em;
  transition: transform var(--t), box-shadow var(--t), background var(--t), border-color var(--t);
  white-space: nowrap;
}
.btn svg { width: 17px; height: 17px; }
.btn-primary { background: var(--grad-cta); color: #fff; box-shadow: 0 10px 26px -10px rgba(14,91,184,.55); }
.btn-primary:hover { background: var(--grad-cta-hi); transform: translateY(-2px); box-shadow: 0 16px 34px -10px rgba(14,91,184,.62); }
.btn-ghost { border: 1.5px solid var(--line-2); color: var(--fg); background: rgba(255,255,255,.7); }
.btn-ghost:hover { border-color: var(--blue); color: var(--blue); transform: translateY(-2px); }
.dark-zone .btn-ghost, .dark-zone-flat .btn-ghost { border-color: rgba(142,180,220,.32); color: var(--dfg); background: rgba(255,255,255,.05); }
.dark-zone .btn-ghost:hover, .dark-zone-flat .btn-ghost:hover { border-color: var(--cyan-bright); color: var(--cyan-bright); }
.btn-sm { height: var(--btn-h-sm); padding: 0 22px; font-size: 14.5px; border-radius: 10px; }
.btn-lg { height: 54px; padding: 0 38px; font-size: 17px; }
.btn-glow { position: relative; }
.btn-glow::after {
  content: ''; position: absolute; inset: -3px; border-radius: 14px; z-index: -1;
  background: var(--grad-cta); filter: blur(14px); opacity: .5; transition: opacity var(--t);
}
.btn-glow:hover::after { opacity: .85; }

/* ---------- 徽章 / 标签 ---------- */
.tag {
  display: inline-flex; align-items: center; gap: 6px;
  height: 28px; padding: 0 12px; border-radius: 999px;
  font-size: 12.5px; font-weight: 600;
  background: rgba(14,91,184,.09); color: var(--blue-deep);
  border: 1px solid rgba(14,91,184,.16);
}
.dark-zone .tag, .dark-zone-flat .tag { background: rgba(34,211,238,.1); color: var(--cyan-bright); border-color: rgba(34,211,238,.22); }

/* ---------- 导航（site-nav.js 注入，全站唯一） ---------- */
#zh-nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  height: var(--nav-h);
  background: rgba(7,17,33,.72);
  -webkit-backdrop-filter: blur(18px); backdrop-filter: blur(18px);
  border-bottom: 1px solid rgba(142,180,220,.12);
  transition: background .3s var(--ease), border-color .3s var(--ease);
}
#zh-nav.scrolled { background: rgba(6,14,28,.9); border-bottom-color: rgba(142,180,220,.18); }
#zh-nav .inner { width: min(var(--wrap), 92vw); margin: 0 auto; height: 100%; display: flex; align-items: center; justify-content: space-between; gap: 20px; }
#zh-nav .logo { display: flex; align-items: center; gap: 11px; flex-shrink: 0; }
#zh-nav .logo img { height: 34px; width: auto; }
#zh-nav .logo .logo-txt { font-size: 18px; font-weight: 800; color: #fff; letter-spacing: .02em; }
#zh-nav .logo .logo-txt em { font-style: normal; font-size: 11px; font-weight: 600; color: var(--cyan-bright); letter-spacing: .22em; display: block; margin-top: 1px; }
#zh-nav .links { display: flex; align-items: center; gap: 4px; }
#zh-nav .links a {
  position: relative; display: inline-flex; align-items: center;
  height: var(--nav-h); padding: 0 17px;
  font-size: 15px; font-weight: 600; color: var(--dfg-2);
  transition: color var(--t);
}
#zh-nav .links a:hover { color: #fff; }
#zh-nav .links a.active { color: #fff; }
#zh-nav .links a.active::after {
  content: ''; position: absolute; left: 17px; right: 17px; bottom: 0;
  height: 3px; border-radius: 3px 3px 0 0; background: var(--grad-cta);
}
#zh-nav .cta { flex-shrink: 0; }
#zh-nav .burger { display: none; width: 42px; height: 42px; border-radius: 10px; border: 1px solid rgba(142,180,220,.22); align-items: center; justify-content: center; }
#zh-nav .burger span { display: block; width: 18px; height: 2px; background: #fff; border-radius: 2px; position: relative; }
#zh-nav .burger span::before, #zh-nav .burger span::after { content:''; position: absolute; left: 0; width: 18px; height: 2px; background: #fff; border-radius: 2px; }
#zh-nav .burger span::before { top: -6px; } #zh-nav .burger span::after { top: 6px; }
#zh-mobile {
  display: none; position: fixed; top: var(--nav-h); left: 0; right: 0; z-index: 99;
  background: rgba(6,14,28,.97); -webkit-backdrop-filter: blur(20px); backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(142,180,220,.14); padding: 10px 4vw 22px;
}
#zh-mobile.open { display: block; animation: mobIn .18s ease; }
@keyframes mobIn { from { opacity: 0; transform: translateY(-8px); } to { opacity: 1; transform: none; } }
#zh-mobile a { display: block; padding: 14px 10px; font-size: 16px; font-weight: 600; color: var(--dfg-2); border-bottom: 1px solid rgba(142,180,220,.08); }
#zh-mobile a.active { color: var(--cyan-bright); }
#zh-mobile .btn { width: 100%; margin-top: 16px; }
@media (max-width: 920px) {
  #zh-nav .links, #zh-nav .cta { display: none; }
  #zh-nav .burger { display: inline-flex; }
}

/* ---------- 卡片 ---------- */
.card {
  background: var(--white); border: 1px solid var(--line);
  border-radius: var(--radius-lg); padding: 30px;
  box-shadow: var(--shadow-1);
  transition: transform var(--t), box-shadow var(--t), border-color var(--t);
}
.card:hover { transform: translateY(-5px); box-shadow: var(--shadow-2); border-color: var(--line-2); }
.card .card-icon {
  width: 52px; height: 52px; border-radius: 14px; display: flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, rgba(14,91,184,.12), rgba(8,145,174,.1));
  border: 1px solid rgba(14,91,184,.14); margin-bottom: 20px;
}
.card .card-icon svg { width: 26px; height: 26px; stroke: var(--blue); }
.card h3 { font-size: 19px; margin-bottom: 10px; }
.card p { color: var(--fg-2); font-size: 14.5px; }

/* 深底卡 */
.dcard {
  background: rgba(255,255,255,.045);
  border: 1px solid var(--dline);
  border-radius: var(--radius-lg); padding: 30px;
  transition: transform var(--t), background var(--t), border-color var(--t);
}
.dcard:hover { background: rgba(255,255,255,.075); border-color: rgba(142,180,220,.26); transform: translateY(-4px); }

/* ---------- 数字 ---------- */
.num { font-weight: 800; background: var(--grad-num); -webkit-background-clip: text; background-clip: text; color: transparent; font-variant-numeric: tabular-nums; }
.dark-zone .num, .dark-zone-flat .num { background: var(--grad-text); -webkit-background-clip: text; background-clip: text; }

/* ---------- 列表卡（资讯/媒体/案例通用） ---------- */
.post-card {
  display: flex; flex-direction: column;
  background: var(--white); border: 1px solid var(--line);
  border-radius: var(--radius-lg); overflow: hidden;
  box-shadow: var(--shadow-1); transition: transform var(--t), box-shadow var(--t);
}
.post-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-2); }
.post-card .pc-body { padding: 22px 24px 24px; display: flex; flex-direction: column; gap: 10px; flex: 1; }
.post-card .pc-tag { align-self: flex-start; }
.post-card h3 { font-size: 17px; line-height: 1.5; }
.post-card h3 a:hover { color: var(--blue); }
.post-card p { color: var(--fg-2); font-size: 14px; flex: 1; }
.post-card .pc-meta { display: flex; align-items: center; gap: 14px; color: var(--fg-3); font-size: 12.5px; margin-top: 4px; }

/* ---------- 数据容器（接口驱动） ---------- */
.api-zone { position: relative; }
.api-grid { display: grid; gap: 24px; }
.api-grid.cols-3 { grid-template-columns: repeat(3, 1fr); }
.api-grid.cols-4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 980px) { .api-grid.cols-3, .api-grid.cols-4 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 620px) { .api-grid.cols-3, .api-grid.cols-4 { grid-template-columns: 1fr; } }
.api-empty {
  border: 1.5px dashed var(--line-2); border-radius: var(--radius-lg);
  padding: 46px 24px; text-align: center; color: var(--fg-3); font-size: 14.5px;
  background: rgba(255,255,255,.5);
}
.api-loading { display: grid; gap: 24px; grid-template-columns: repeat(3, 1fr); }
@media (max-width: 980px) { .api-loading { grid-template-columns: repeat(2,1fr); } }
@media (max-width: 620px) { .api-loading { grid-template-columns: 1fr; } }
.api-skel { height: 300px; border-radius: var(--radius-lg); background: linear-gradient(100deg,#eef4fa 40%,#f7fafc 50%,#eef4fa 60%); background-size: 200% 100%; animation: skel 1.2s infinite linear; }
@keyframes skel { to { background-position: -200% 0; } }

/* ---------- 页脚 ---------- */
#zh-footer { background: linear-gradient(180deg,#081426,#050d1a); color: var(--dfg-2); padding: 72px 0 0; }
#zh-footer .cols { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1.2fr; gap: 40px; padding-bottom: 52px; }
#zh-footer h4 { color: #fff; font-size: 14.5px; letter-spacing: .08em; margin-bottom: 18px; }
#zh-footer a { display: block; padding: 5px 0; font-size: 14px; color: var(--dfg-3); transition: color var(--t); }
#zh-footer a:hover { color: var(--cyan-bright); }
#zh-footer .brand p { font-size: 14px; color: var(--dfg-3); max-width: 300px; margin-top: 14px; }
#zh-footer .foot-bar {
  border-top: 1px solid rgba(142,180,220,.12); padding: 20px 0;
  display: flex; align-items: center; justify-content: space-between; gap: 14px; flex-wrap: wrap;
  font-size: 12.5px; color: var(--dfg-3);
}
#zh-footer .foot-bar a { display: inline; padding: 0; font-size: 12.5px; }
@media (max-width: 880px) { #zh-footer .cols { grid-template-columns: 1fr 1fr; } }
@media (max-width: 520px) { #zh-footer .cols { grid-template-columns: 1fr; } }

/* ---------- 表单元素 ---------- */
.field input, .field select, .field textarea {
  width: 100%; height: var(--btn-h);
  border: 1.5px solid var(--line-2); border-radius: 11px;
  padding: 0 16px; font-size: 15.5px; font-family: inherit; color: var(--fg);
  background: var(--white); transition: border-color var(--t), box-shadow var(--t);
}
.field textarea { height: auto; min-height: 110px; padding: 13px 16px; resize: vertical; }
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none; border-color: var(--blue);
  box-shadow: 0 0 0 4px rgba(14,91,184,.13);
}
.field label { display: block; font-size: 13.5px; font-weight: 700; color: var(--fg-2); margin-bottom: 8px; }
.dark-zone .field input, .dark-zone-flat .field input, .dark-zone .field textarea {
  background: rgba(255,255,255,.06); border-color: rgba(142,180,220,.24); color: var(--dfg);
}

/* ---------- 动效 ---------- */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity .7s var(--ease), transform .7s var(--ease); }
.reveal.in { opacity: 1; transform: none; }
.reveal:nth-child(2) { transition-delay: .08s; } .reveal:nth-child(3) { transition-delay: .16s; } .reveal:nth-child(4) { transition-delay: .24s; }
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; scroll-behavior: auto !important; }
  .reveal { opacity: 1; transform: none; }
}

/* ---------- 焦点可访问性 ---------- */
a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible {
  outline: 2.5px solid var(--cyan-bright); outline-offset: 2px; border-radius: 6px;
}

/* ---------- 详情页正文 ---------- */
.prose { font-size: 16.5px; line-height: 1.9; color: var(--fg-2); }
.prose h2 { font-size: 22px; color: var(--fg); margin: 34px 0 14px; }
.prose h3 { font-size: 18px; color: var(--fg); margin: 26px 0 12px; }
.prose p { margin-bottom: 16px; }
.prose ul { margin: 0 0 16px 22px; } .prose li { margin-bottom: 8px; }
.prose strong { color: var(--fg); }
.prose blockquote { border-left: 3px solid var(--blue); background: rgba(14,91,184,.05); padding: 14px 20px; border-radius: 0 10px 10px 0; margin: 20px 0; }

/* ═══════ 页头 page-hero（全站统一深色页头） ═══════ */
.page-hero { background: linear-gradient(160deg, #0a1f3d 0%, #0b2f5e 55%, #0e5bb8 140%); position: relative; overflow: hidden; }
.page-hero::before { content: ''; position: absolute; inset: 0; background-image: linear-gradient(rgba(142,180,220,.055) 1px,transparent 1px),linear-gradient(90deg,rgba(142,180,220,.055) 1px,transparent 1px); background-size: 44px 44px; mask-image: radial-gradient(760px 380px at 30% 10%, #000 20%, transparent 75%); }
.page-hero .wrap { position: relative; padding: calc(var(--nav-h) + 72px) 0 64px; }
.page-hero h1 { color: var(--dfg); font-size: clamp(30px, 4.6vw, 52px); font-weight: 800; letter-spacing: -0.015em; line-height: 1.22; margin: 18px 0 16px; }
.page-hero p { color: var(--dfg-2); font-size: 17px; max-width: 560px; }
.page-hero .eyebrow { display: inline-flex; }
.crumb { color: var(--dfg-3); font-size: 14px; letter-spacing: .02em; display: inline-block; }
.crumb a { color: var(--dfg-2); text-decoration: none; } .crumb a:hover { color: var(--cyan-bright); }

/* ═══════ CTA 大区（浅底页统一深色收尾） ═══════ */
.cta-zone { background: linear-gradient(150deg, #0a1f3d, #0d3a75 70%, #0e5bb8 150%); padding: 88px 0; text-align: center; position: relative; overflow: hidden; }
.cta-zone::after { content: ''; position: absolute; left: 50%; top: -140px; width: 680px; height: 340px; transform: translateX(-50%); background: radial-gradient(closest-side, rgba(8,145,174,.32), transparent 72%); filter: blur(30px); pointer-events: none; }
.cta-zone .wrap { position: relative; }
.cta-zone h2 { color: var(--dfg); font-size: clamp(26px, 3.6vw, 40px); font-weight: 800; letter-spacing: -0.012em; }

/* ═══════ 指标行（详情页成果条） ═══════ */
.metric-row { display: flex; gap: 16px; flex-wrap: wrap; }
.metric { flex: 1 1 180px; background: var(--white); border: 1px solid var(--line); border-radius: var(--r-lg); padding: 22px 24px; box-shadow: var(--shadow-1); }
.metric b { display: block; font-size: clamp(26px, 3vw, 36px); font-weight: 800; background: var(--grad-text); -webkit-background-clip: text; background-clip: text; color: transparent; font-variant-numeric: tabular-nums; }
.metric span { color: var(--fg-3); font-size: 13.5px; margin-top: 6px; display: block; }

/* ═══════ 筛选行 ═══════ */
.filter-row { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 30px; }
.chip { display: inline-flex; align-items: center; height: 36px; padding: 0 18px; border-radius: 999px; border: 1.5px solid var(--line-2); background: var(--white); color: var(--fg-2); font-size: 14px; font-weight: 600; cursor: pointer; transition: var(--t); }
.chip:hover { border-color: var(--blue); color: var(--blue); }
.chip.active { background: var(--grad-cta); border-color: transparent; color: #fff; box-shadow: 0 6px 16px -6px rgba(14,91,184,.5); }

/* ═══════ kv 键值对 ═══════ */
.kv { display: flex; flex-direction: column; gap: 4px; }
.kv span { color: var(--fg-3); font-size: 13px; letter-spacing: .02em; }
.kv b { color: var(--fg); font-size: 15.5px; font-weight: 700; }

/* ═══════ 步骤指示器（表单） ═══════ */
.steps { display: flex; align-items: center; justify-content: center; gap: 8px; flex-wrap: wrap; margin: 8px 0 30px; }
.step-badge { display: inline-flex; align-items: center; gap: 8px; height: 38px; padding: 0 16px; border-radius: 999px; font-size: 13.5px; font-weight: 600; color: var(--fg-3); background: var(--white); border: 1.5px solid var(--line); }
.step-badge.on { background: var(--grad-cta); color: #fff; border-color: transparent; box-shadow: 0 6px 16px -6px rgba(14,91,184,.5); }
.step-badge.done { color: var(--ok); border-color: rgba(15,169,104,.35); }
.step-arrow { color: var(--line-2); font-size: 15px; }

/* ═══════ 表单组件 ═══════ */
.form-shell { max-width: 760px; margin: 0 auto; }
.form-card { background: var(--white); border-radius: var(--r-xl); box-shadow: var(--shadow-2); border: 1px solid var(--line); padding: 38px 40px; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px 20px; }
.form-grid .full { grid-column: 1 / -1; }
.f-label { display: block; font-size: 13.5px; font-weight: 600; color: var(--fg-2); margin-bottom: 8px; letter-spacing: .02em; }
.f-label.req::after { content: ' *'; color: var(--err); }
.input { width: 100%; height: 46px; border-radius: var(--r-sm); border: 1.5px solid var(--line-2); background: #fbfdfe; padding: 0 14px; font-size: 15px; color: var(--fg); transition: var(--t); }
textarea.input { height: auto; min-height: 96px; padding: 12px 14px; resize: vertical; line-height: 1.6; }
.input:focus { outline: none; border-color: var(--blue); box-shadow: var(--ring); background: var(--white); }
.opt { display: flex; align-items: center; gap: 10px; border: 1.5px solid var(--line-2); border-radius: var(--r-md); padding: 13px 16px; font-size: 14.5px; color: var(--fg-2); cursor: pointer; background: var(--white); transition: var(--t); }
.opt:hover { border-color: var(--blue); }
.opt input { accent-color: var(--blue); width: 17px; height: 17px; }
.opt.sel { border-color: var(--blue); background: rgba(14,91,184,.05); color: var(--fg); font-weight: 600; }
.plat { display: flex; align-items: center; gap: 9px; font-size: 13.5px; font-weight: 600; }

/* ═══════ toast / spinner / 进度 ═══════ */
.toast { position: fixed; left: 50%; bottom: 34px; transform: translateX(-50%) translateY(20px); background: #0f2c46; color: #fff; font-size: 14.5px; padding: 12px 22px; border-radius: 999px; box-shadow: 0 14px 34px -10px rgba(6,18,36,.5); opacity: 0; pointer-events: none; transition: all .3s ease; z-index: 300; }
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }
.spinner { width: 15px; height: 15px; border: 2.5px solid rgba(14,91,184,.2); border-top-color: var(--blue); border-radius: 50%; animation: spin .8s linear infinite; display: inline-block; vertical-align: -2px; }
@keyframes spin { to { transform: rotate(360deg); } }
.progress-track { height: 10px; background: var(--line); border-radius: 999px; overflow: hidden; }
.progress-track > div { height: 100%; width: 0; background: var(--grad-cta); border-radius: 999px; transition: width .6s var(--ease); }

/* ═══════ 联系条 / 报告 / 杂项 ═══════ */
.contact-strip { display: flex; gap: 26px; flex-wrap: wrap; justify-content: center; color: var(--dfg-2); font-size: 14.5px; margin-top: 30px; }
.contact-item { display: inline-flex; align-items: center; gap: 8px; }
.contact-item b { color: var(--dfg); font-weight: 700; }
.report-wrap { text-align: center; padding: 34px 20px; }
.dnum { font-size: 13px; color: var(--fg-3); font-variant-numeric: tabular-nums; }
.caret { display: inline-block; width: 2px; height: 1em; background: var(--cyan-bright); margin-left: 3px; vertical-align: -2px; animation: blink 1s steps(1) infinite; }

/* ═══════ 响应式补充 ═══════ */
@media (max-width: 900px) {
  .form-card { padding: 26px 20px; }
  .form-grid { grid-template-columns: 1fr; }
  .metric-row { gap: 10px; }
  .metric b { font-size: 26px; }
}