/* ============================================================
   ZenForge Digital · 设计系统 v2「Aurora Ink」
   深色沉浸 Hero/收尾 × 精致浅色正文 × 极光绿渐变点缀
   所有颜色与字体均来自本文件 :root token，改品牌只改这里
   ============================================================ */
:root {
  /* 深色面 */
  --ink-bg: #0B110E;
  --ink-bg-2: #0E1713;
  --ink-card: rgba(255, 255, 255, 0.045);
  --ink-border: rgba(255, 255, 255, 0.09);
  --ink-text: #F2F6F2;
  --ink-text-2: #AEBBB2;
  /* 浅色面 */
  --bg: #FFFFFF;
  --bg-tint: #F7F7F4;
  --surface: #FFFFFF;
  --ink: #141A16;
  --ink-soft: #454F49;
  --muted: #667069;
  --border: #E8EAE4;
  --border-strong: #D8DCD2;
  /* 品牌渐变绿 */
  --accent: #10B981;
  --accent-deep: #0B815A;
  --accent-bright: #34D399;
  --accent-soft: rgba(16, 185, 129, 0.10);
  --grad-accent: linear-gradient(120deg, #34D399, #10B981 45%, #0D9488);
  --grad-text: linear-gradient(100deg, #86EFAC, #34D399 50%, #2DD4BF);
  /* 语义色 */
  --success: #0FA968;
  --warn: #B7791F;
  --danger: #C4472F;
  --danger-soft: rgba(196, 71, 47, 0.08);
  /* 字体 */
  --font-display: 'Bricolage Grotesque', -apple-system, 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
  --font-body: 'Bricolage Grotesque', -apple-system, 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, 'SF Mono', Consolas, monospace;
  /* 圆角 / 阴影 / 动效 */
  --r-sm: 10px;
  --r-md: 14px;
  --r-lg: 20px;
  --r-pill: 999px;
  --shadow-1: 0 1px 2px rgba(16, 24, 20, 0.05), 0 6px 20px rgba(16, 24, 20, 0.05);
  --shadow-2: 0 2px 8px rgba(16, 24, 20, 0.07), 0 18px 48px rgba(16, 24, 20, 0.12);
  --glow: 0 10px 30px rgba(16, 185, 129, 0.35), inset 0 1px 0 rgba(255, 255, 255, 0.25);
  --motion: 220ms;
  --ease: cubic-bezier(0.2, 0, 0, 1);
  --container: 1200px;
}

/* ---------------- base ---------------- */
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--ink);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; }
button { font: inherit; cursor: pointer; }
::selection { background: rgba(16, 185, 129, 0.22); }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 4px; }

.wrap { max-width: var(--container); margin: 0 auto; padding: 0 32px; }

/* ---------------- 深色带 ---------------- */
.band-dark {
  position: relative;
  background:
    radial-gradient(1000px 460px at 82% -12%, rgba(52, 211, 153, 0.17), transparent 62%),
    radial-gradient(760px 520px at 4% 112%, rgba(45, 212, 191, 0.10), transparent 58%),
    var(--ink-bg);
  color: var(--ink-text);
  overflow: hidden;
}
.band-dark::before {
  content: ''; position: absolute; inset: 0; pointer-events: none;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.045) 1px, transparent 1px);
  background-size: 72px 72px;
  -webkit-mask-image: radial-gradient(1200px 600px at 70% 20%, rgba(0, 0, 0, 0.9), transparent 75%);
  mask-image: radial-gradient(1200px 600px at 70% 20%, rgba(0, 0, 0, 0.9), transparent 75%);
}
.band-dark > .wrap { position: relative; z-index: 1; }
.band-dark .eyebrow { color: var(--accent-bright); }
.band-dark .eyebrow::before { background: var(--accent-bright); }
.band-dark .lede { color: var(--ink-text-2); }
.band-dark .btn-outline { background: rgba(255, 255, 255, 0.13); color: #fff; border-color: rgba(255, 255, 255, 0.5); backdrop-filter: blur(6px); }
.band-dark .btn-outline:hover { background: rgba(255, 255, 255, 0.2); border-color: rgba(255, 255, 255, 0.85); color: #fff; }
.grad-text {
  background: var(--grad-text);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* ---------------- typography ---------------- */
h1, h2, h3 { font-family: var(--font-display); font-weight: 700; line-height: 1.14; }
.eyebrow {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.10em;
  text-transform: uppercase;
  color: var(--accent-deep);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--accent-soft);
  border: 1px solid rgba(16, 185, 129, 0.18);
  border-radius: var(--r-pill);
  padding: 6px 14px;
}
.eyebrow.plain { background: transparent; border-color: transparent; padding: 6px 0; }
.eyebrow.plain::before { display: none; }
.lede { color: var(--ink-soft); font-size: 17.5px; line-height: 1.7; }
.muted { color: var(--muted); }
.mono { font-family: var(--font-mono); }
.section { padding: 96px 0; }
.section-head { max-width: 680px; margin-bottom: 56px; }
.section-head h2 { font-size: clamp(30px, 3.6vw, 44px); letter-spacing: -0.02em; margin: 18px 0 14px; }
.section-head p { color: var(--ink-soft); font-size: 16.5px; }

/* ---------------- buttons ---------------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 13px 24px; border-radius: 12px;
  font-size: 15px; font-weight: 600; letter-spacing: 0.01em;
  border: 1px solid transparent; text-decoration: none;
  transition: transform var(--motion) var(--ease), box-shadow var(--motion) var(--ease),
              background var(--motion) var(--ease), border-color var(--motion) var(--ease), color var(--motion) var(--ease);
}
.btn:active { transform: translateY(1px); }
.btn-ink { background: var(--ink); color: #fff; }
.btn-ink:hover { background: #232D26; box-shadow: var(--shadow-1); }
.btn-accent { background: var(--grad-accent); color: #06231A; font-weight: 650; box-shadow: var(--glow); }
.btn-accent:hover { filter: brightness(1.06); box-shadow: 0 14px 36px rgba(16, 185, 129, 0.45), inset 0 1px 0 rgba(255, 255, 255, 0.25); }
.btn-outline { background: transparent; color: var(--ink); border-color: var(--border-strong); }
.btn-outline:hover { border-color: var(--accent); color: var(--accent-deep); background: var(--surface); }
.btn-ghost-light { background: rgba(255, 255, 255, 0.14); color: #fff; border-color: rgba(255, 255, 255, 0.42); backdrop-filter: blur(6px); }
.btn-ghost-light:hover { background: rgba(255, 255, 255, 0.22); border-color: rgba(255, 255, 255, 0.7); }
.btn-lg { padding: 16px 30px; font-size: 16px; border-radius: 14px; }
.btn[disabled] { opacity: 0.55; cursor: not-allowed; }
.btn-link { background: none; border: none; color: var(--accent-deep); font-weight: 600; padding: 4px 0; text-decoration: none; }
.btn-link::after { content: '→'; margin-left: 6px; transition: margin var(--motion) var(--ease); }
.btn-link:hover::after { margin-left: 10px; }
.band-dark .btn-link { color: var(--accent-bright); }

/* ---------------- header ---------------- */
.site-header {
  position: sticky; top: 0; z-index: 60;
  background: rgba(255, 255, 255, 0.82);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--motion) var(--ease), background var(--motion) var(--ease);
}
.site-header.scrolled { border-bottom-color: var(--border); background: rgba(255, 255, 255, 0.92); }
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 70px; gap: 20px; }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; }
.brand-mark { width: 34px; height: 34px; border-radius: 9px; box-shadow: 0 4px 12px rgba(16, 185, 129, 0.3); }
.brand-name { font-family: var(--font-display); font-weight: 700; font-size: 18px; letter-spacing: -0.01em; display: flex; flex-direction: column; line-height: 1.1; }
.brand-name small { font-family: var(--font-mono); font-size: 9.5px; font-weight: 400; letter-spacing: 0.12em; text-transform: uppercase; color: var(--muted); }
.main-nav { display: flex; align-items: center; gap: 26px; }
.main-nav a { text-decoration: none; color: var(--ink-soft); font-size: 14.5px; font-weight: 550; padding: 6px 2px; border-bottom: 2px solid transparent; transition: color var(--motion) var(--ease); }
.main-nav a:hover { color: var(--ink); }
.main-nav a.active { color: var(--ink); border-bottom-color: var(--accent); }
.header-actions { display: flex; align-items: center; gap: 12px; }
.lang-toggle {
  font-family: var(--font-mono); font-size: 13px; letter-spacing: 0.06em;
  background: var(--surface); border: 1px solid var(--border-strong); color: var(--ink);
  padding: 9px 16px; border-radius: var(--r-pill); transition: border-color var(--motion) var(--ease);
}
.lang-toggle:hover { border-color: var(--accent); }
.menu-btn { display: none; background: none; border: 1px solid var(--border-strong); border-radius: 10px; width: 42px; height: 42px; align-items: center; justify-content: center; }
.menu-btn svg { width: 20px; height: 20px; }
.mobile-nav { display: none; }

/* ---------------- hero ---------------- */
.hero { position: relative; padding: 96px 0 130px; }
.hero::after {
  content: ''; position: absolute; right: -140px; top: -160px; width: 560px; height: 560px; border-radius: 50%;
  background: radial-gradient(closest-side, rgba(52, 211, 153, 0.22), transparent);
  filter: blur(10px); pointer-events: none;
}
.hero-grid { display: grid; grid-template-columns: 1.06fr 0.94fr; gap: 60px; align-items: center; }
.hero h1 { font-size: clamp(42px, 5.4vw, 68px); letter-spacing: -0.028em; line-height: 1.06; margin: 24px 0 24px; }
.hero h1 em { font-style: normal; }
.hero .lede { max-width: 54ch; margin-bottom: 38px; font-size: 18px; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; align-items: center; }
.hero-note { margin-top: 26px; font-size: 14.5px; color: #DCE5DE; display: flex; gap: 18px; flex-wrap: wrap; }
.hero-note span { display: inline-flex; align-items: center; gap: 7px; }
.hero-note svg { width: 15px; height: 15px; color: var(--accent-bright); }

/* agent 控制台（深色玻璃） */
.agent-console {
  position: relative;
  background: linear-gradient(160deg, rgba(255, 255, 255, 0.09), rgba(255, 255, 255, 0.035));
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: var(--r-lg);
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.45), inset 0 1px 0 rgba(255, 255, 255, 0.16);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  overflow: hidden;
}
.console-bar { display: flex; align-items: center; gap: 7px; padding: 13px 18px; border-bottom: 1px solid var(--ink-border); }
.console-bar i { width: 10px; height: 10px; border-radius: 50%; background: rgba(255, 255, 255, 0.18); }
.console-bar .console-title { margin-left: 8px; font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.08em; color: var(--ink-text-2); text-transform: uppercase; }
.console-body { padding: 20px 20px 8px; display: grid; gap: 12px; }
.console-msg { max-width: 88%; padding: 12px 16px; border-radius: 13px; font-size: 14px; line-height: 1.6; }
.console-msg.user { justify-self: end; background: var(--grad-accent); color: #06231A; font-weight: 550; border-bottom-right-radius: 4px; }
.console-msg.bot { justify-self: start; background: rgba(255, 255, 255, 0.06); border: 1px solid var(--ink-border); color: var(--ink-text); border-bottom-left-radius: 4px; }
.console-msg .mono-tag { font-family: var(--font-mono); font-size: 10.5px; color: #7BE3B8; letter-spacing: 0.06em; display: block; margin-bottom: 4px; }
.console-flow { padding: 14px 20px 20px; }
.console-flow svg { width: 100%; height: auto; }
.flow-anim { stroke-dasharray: 5 6; animation: dashflow 2.6s linear infinite; }
@keyframes dashflow { to { stroke-dashoffset: -44; } }

  .band-dark h1, .band-dark h2, .band-dark h3, .band-dark h4 { color: var(--ink-text); }
  .band-dark p { color: var(--ink-text-2); }
  .band-dark .muted { color: var(--ink-text-2); }
  .band-dark .badge { background: rgba(52, 211, 153, 0.14); color: var(--accent-bright); border-color: rgba(52, 211, 153, 0.28); }
  .band-dark .badge.neutral { background: rgba(255, 255, 255, 0.06); border-color: rgba(255, 255, 255, 0.14); color: var(--ink-text-2); }
  .band-dark .notice { background: rgba(255, 255, 255, 0.05); border-color: rgba(255, 255, 255, 0.14); color: var(--ink-text-2); }
  .band-dark .case-sub { color: var(--ink-text-2); }
  .band-dark .case-hero-meta div span { color: var(--ink-text-2); }
  .band-dark .case-hero-meta div strong { color: var(--ink-text); }
  .band-dark .section-head p { color: var(--ink-text-2); }

/* ---------------- stats strip ---------------- */
.stats-strip { position: relative; z-index: 2; margin-top: -46px; border-radius: 32px 32px 0 0; background: var(--bg-tint); padding: 48px 0 42px; box-shadow: 0 -18px 50px rgba(11, 17, 14, 0.22); }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.stat .stat-value { font-family: var(--font-display); font-size: 38px; font-weight: 700; letter-spacing: -0.02em; line-height: 1.1; font-variant-numeric: tabular-nums; background: var(--grad-text); -webkit-background-clip: text; background-clip: text; color: transparent; width: fit-content; }
.stat .stat-label { color: var(--ink-soft); font-size: 14.5px; font-weight: 500; margin-top: 6px; }

/* ---------------- cards / services ---------------- */
.card {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--r-lg);
  padding: 32px; position: relative;
  transition: transform var(--motion) var(--ease), box-shadow var(--motion) var(--ease), border-color var(--motion) var(--ease);
}
.card:hover { transform: translateY(-3px); box-shadow: var(--shadow-2); border-color: rgba(16, 185, 129, 0.35); }
.svc-num { font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.12em; color: var(--accent-deep); text-transform: uppercase; }
.card h3 { font-size: 23px; letter-spacing: -0.015em; margin: 12px 0 10px; }
.card p { color: var(--ink-soft); font-size: 15px; }
.svc-list { list-style: none; margin-top: 18px; display: grid; gap: 9px; }
.svc-list li { font-size: 14px; color: var(--ink-soft); display: flex; gap: 10px; align-items: baseline; }
.svc-list li::before { content: ''; width: 5px; height: 5px; border-radius: 50%; background: var(--grad-accent); flex: none; transform: translateY(-2px); }
.svc-visual { border: 1px solid var(--border); border-radius: var(--r-md); background: linear-gradient(150deg, #0E1713, #12241C); padding: 18px; }
.svc-visual svg { width: 100%; height: auto; }
.card .card-link { margin-top: 20px; display: inline-block; }

/* ---------------- process ---------------- */
.process-band { background: var(--bg-tint); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.process-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 22px; counter-reset: step; }
.process-step { position: relative; padding-top: 30px; }
.process-step::before {
  counter-increment: step; content: counter(step, decimal-leading-zero);
  font-family: var(--font-mono); font-size: 12px; letter-spacing: 0.1em; color: var(--accent-deep);
  position: absolute; top: 0; left: 0; background: var(--accent-soft); border-radius: 6px; padding: 3px 8px;
}
.process-step::after { content: ''; position: absolute; top: 12px; left: 44px; right: -14px; height: 1px; background: var(--border-strong); }
.process-step:last-child::after { display: none; }
.process-step h3 { font-size: 16.5px; margin-bottom: 7px; }
.process-step p { font-size: 13.5px; color: var(--muted); line-height: 1.6; }

/* ---------------- cases ---------------- */
.case-toolbar { display: flex; justify-content: space-between; align-items: center; gap: 16px; flex-wrap: wrap; margin-bottom: 32px; }
.filter-group { display: flex; gap: 8px; flex-wrap: wrap; }
.filter-chip {
  border: 1px solid var(--border-strong); background: var(--surface); color: var(--ink-soft);
  border-radius: var(--r-pill); padding: 9px 18px; font-size: 13.5px; font-weight: 550;
  transition: all var(--motion) var(--ease);
}
.filter-chip:hover { border-color: var(--accent); color: var(--accent-deep); }
.filter-chip.active { background: var(--ink); border-color: var(--ink); color: #fff; }
.cases-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.case-card {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--r-lg); overflow: hidden;
  text-decoration: none; display: flex; flex-direction: column;
  transition: transform var(--motion) var(--ease), box-shadow var(--motion) var(--ease), border-color var(--motion) var(--ease);
}
.case-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-2); border-color: rgba(16, 185, 129, 0.35); }
.case-card.case-wide { grid-column: 1 / -1; flex-direction: row; }
.case-cover { aspect-ratio: 16 / 8.2; position: relative; overflow: hidden; }
.case-card.case-wide .case-cover { width: 47%; aspect-ratio: auto; border-bottom: none; }
.case-card.case-wide .case-cover svg { height: 100%; }
.case-cover svg { width: 100%; height: 100%; transition: transform 500ms var(--ease); }
.case-card:hover .case-cover svg { transform: scale(1.03); }
.case-body { padding: 26px 28px 28px; display: flex; flex-direction: column; gap: 10px; flex: 1; }
.case-meta-row { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.case-body h3 { font-size: 21px; letter-spacing: -0.015em; }
.case-sub { color: var(--muted); font-size: 13.5px; }
.case-metric-line { margin-top: auto; padding-top: 14px; border-top: 1px dashed var(--border); font-size: 13.5px; color: var(--ink-soft); display: flex; gap: 16px; flex-wrap: wrap; }
.case-metric-line strong { font-family: var(--font-mono); color: var(--accent-deep); font-weight: 600; }
.badge { font-size: 11.5px; font-weight: 600; letter-spacing: 0.04em; padding: 4px 11px; border-radius: var(--r-pill); background: var(--accent-soft); color: var(--accent-deep); border: 1px solid rgba(16, 185, 129, 0.16); }
.badge.neutral { background: var(--bg-tint); color: var(--muted); border: 1px solid var(--border); }
.notice {
  display: flex; gap: 10px; align-items: flex-start; background: var(--bg-tint);
  border: 1px dashed var(--border-strong); border-radius: var(--r-md); padding: 14px 16px;
  font-size: 13.5px; color: var(--muted); margin-bottom: 30px;
}
.notice svg { width: 16px; height: 16px; flex: none; margin-top: 2px; color: var(--accent); }

/* 案例详情 */
.case-hero { padding: 72px 0 44px; border-bottom: 1px solid var(--border); }
.case-hero h1 { font-size: clamp(32px, 4.4vw, 50px); letter-spacing: -0.025em; margin: 18px 0 14px; }
.case-hero .lede { max-width: 62ch; }
.case-hero-meta { display: flex; gap: 32px; flex-wrap: wrap; margin-top: 30px; }
.case-hero-meta div span { display: block; font-family: var(--font-mono); font-size: 10.5px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--muted); margin-bottom: 4px; }
.case-hero-meta div strong { font-size: 15px; font-weight: 650; }
.case-detail-grid { display: grid; grid-template-columns: 1.5fr 1fr; gap: 60px; padding: 60px 0; }
.case-section h2 { font-size: 23px; margin: 0 0 14px; letter-spacing: -0.015em; }
.case-section { margin-bottom: 44px; }
.case-section p { color: var(--ink-soft); margin-bottom: 12px; }
.case-section ul { padding-left: 0; list-style: none; display: grid; gap: 10px; }
.case-section ul li { color: var(--ink-soft); font-size: 15px; display: flex; gap: 10px; }
.case-section ul li::before { content: ''; width: 5px; height: 5px; border-radius: 50%; background: var(--grad-accent); flex: none; margin-top: 9px; }
.case-aside { display: grid; gap: 22px; align-content: start; }
.metric-blocks { display: grid; grid-template-columns: 1fr; gap: 14px; }
.metric-block { background: var(--surface); border: 1px solid var(--border); border-radius: var(--r-md); padding: 20px 22px; transition: border-color var(--motion) var(--ease); }
.metric-block:hover { border-color: rgba(16, 185, 129, 0.4); }
.metric-block .mv { font-family: var(--font-display); font-size: 30px; font-weight: 700; letter-spacing: -0.02em; background: var(--grad-text); -webkit-background-clip: text; background-clip: text; color: transparent; font-variant-numeric: tabular-nums; }
.metric-block .ml { font-size: 13px; color: var(--muted); margin-top: 3px; }
.chip-row { display: flex; flex-wrap: wrap; gap: 8px; }
.chip { font-family: var(--font-mono); font-size: 12px; padding: 6px 13px; border-radius: var(--r-pill); background: var(--surface); border: 1px solid var(--border-strong); color: var(--ink-soft); }
.case-next { border-top: 1px solid var(--border); padding: 32px 0 64px; display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; }

/* ---------------- 内页页头 ---------------- */
.page-hero { padding: 84px 0 64px; }
.page-hero h1 { font-size: clamp(34px, 4.6vw, 56px); letter-spacing: -0.025em; margin: 20px 0 16px; }
.page-hero .lede { max-width: 62ch; }

/* ---------------- demos ---------------- */
.demo-block { margin-bottom: 80px; }
.demo-head { display: grid; grid-template-columns: 1fr auto; gap: 24px; align-items: end; margin-bottom: 26px; }
.demo-head h2 { font-size: 28px; letter-spacing: -0.015em; margin-top: 14px; }
.demo-head p { color: var(--ink-soft); max-width: 60ch; margin-top: 10px; font-size: 15px; }
.product-frame {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--r-lg);
  box-shadow: var(--shadow-1); overflow: hidden;
}
.product-frame-bar { display: flex; align-items: center; gap: 7px; padding: 12px 16px; border-bottom: 1px solid var(--border); background: var(--bg-tint); }
.product-frame-bar i { width: 9px; height: 9px; border-radius: 50%; background: var(--border-strong); }
.product-frame-bar .pf-title { margin-left: 8px; font-family: var(--font-mono); font-size: 11px; color: var(--muted); letter-spacing: 0.07em; text-transform: uppercase; }
.product-frame-body { padding: 26px; }
.demo-foot { margin-top: 16px; display: flex; justify-content: space-between; align-items: center; gap: 14px; flex-wrap: wrap; font-size: 13px; color: var(--muted); }

/* 聊天演示 */
.chat-shell { display: grid; grid-template-columns: 1fr 280px; gap: 0; min-height: 460px; }
.chat-main { display: flex; flex-direction: column; border-right: 1px solid var(--border); }
.chat-log { flex: 1; overflow-y: auto; padding: 22px; display: flex; flex-direction: column; gap: 12px; background: var(--bg-tint); min-height: 320px; max-height: 420px; }
.chat-msg { max-width: 82%; padding: 12px 16px; border-radius: 15px; font-size: 14px; line-height: 1.6; }
.chat-msg.bot { align-self: flex-start; background: var(--surface); border: 1px solid var(--border); border-bottom-left-radius: 5px; }
.chat-msg.user { align-self: flex-end; background: var(--grad-accent); color: #06231A; font-weight: 500; border-bottom-right-radius: 5px; }
.chat-msg.typing { display: flex; gap: 5px; align-items: center; padding: 15px 17px; }
.chat-msg.typing i { width: 6px; height: 6px; border-radius: 50%; background: var(--muted); animation: blink 1.2s infinite var(--ease); }
.chat-msg.typing i:nth-child(2) { animation-delay: 0.2s; }
.chat-msg.typing i:nth-child(3) { animation-delay: 0.4s; }
@keyframes blink { 0%, 70%, 100% { opacity: 0.25; } 35% { opacity: 1; } }
.chat-quick { display: flex; gap: 8px; flex-wrap: wrap; padding: 12px 20px 0; background: var(--surface); }
.quick-chip { border: 1px solid var(--border-strong); background: var(--surface); color: var(--ink-soft); border-radius: var(--r-pill); padding: 7px 14px; font-size: 12.5px; transition: all var(--motion) var(--ease); }
.quick-chip:hover { border-color: var(--accent); color: var(--accent-deep); }
.chat-input-row { display: flex; gap: 10px; padding: 14px 20px 18px; background: var(--surface); }
.chat-input-row input {
  flex: 1; border: 1px solid var(--border-strong); border-radius: 11px; padding: 12px 15px;
  font: inherit; font-size: 14px; background: var(--surface); color: var(--ink);
}
.chat-input-row input:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }
.chat-send { background: var(--grad-accent); color: #06231A; font-weight: 600; border: none; border-radius: 11px; padding: 0 20px; }
.chat-send:hover { filter: brightness(1.05); }
.chat-side { padding: 24px; display: grid; gap: 16px; align-content: start; background: var(--surface); }
.chat-side h4 { font-size: 14px; }
.chat-side ul { list-style: none; display: grid; gap: 10px; }
.chat-side li { font-size: 13px; color: var(--muted); display: flex; gap: 8px; }
.chat-side li::before { content: ''; width: 5px; height: 5px; border-radius: 50%; background: var(--grad-accent); flex: none; margin-top: 8px; }

/* 数据看板演示 */
.dash-toolbar { display: flex; justify-content: space-between; align-items: center; gap: 14px; flex-wrap: wrap; margin-bottom: 18px; }
.dash-kpis { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; margin-bottom: 18px; }
.kpi { background: var(--bg-tint); border: 1px solid var(--border); border-radius: var(--r-md); padding: 17px 19px; }
.kpi .k-label { font-size: 12.5px; color: var(--muted); }
.kpi .k-value { font-family: var(--font-display); font-size: 26px; font-weight: 700; letter-spacing: -0.02em; font-variant-numeric: tabular-nums; margin-top: 3px; }
.kpi .k-delta { font-family: var(--font-mono); font-size: 11.5px; margin-top: 4px; }
.k-delta.up { color: var(--success); }
.k-delta.down { color: var(--danger); }
.seg-group { display: inline-flex; border: 1px solid var(--border-strong); border-radius: 11px; overflow: hidden; background: var(--surface); }
.seg-btn { border: none; background: transparent; padding: 8px 16px; font-size: 13px; color: var(--muted); font-weight: 550; }
.seg-btn + .seg-btn { border-left: 1px solid var(--border-strong); }
.seg-btn.active { background: var(--ink); color: #fff; }
.dash-charts { display: grid; grid-template-columns: 1.7fr 1fr; gap: 14px; }
.chart-panel { background: var(--bg-tint); border: 1px solid var(--border); border-radius: var(--r-md); padding: 18px; }
.chart-panel h4 { font-size: 14px; margin-bottom: 12px; color: var(--ink-soft); }
.chart-panel svg { width: 100%; height: auto; }
.chart-tip {
  position: absolute; pointer-events: none; background: var(--ink); color: #fff;
  font-size: 12px; padding: 6px 10px; border-radius: 8px; transform: translate(-50%, -130%);
  white-space: nowrap; opacity: 0; transition: opacity 120ms var(--ease); z-index: 5;
}
.chart-wrap { position: relative; }
.legend-row { display: flex; gap: 16px; margin-top: 10px; font-size: 12px; color: var(--muted); flex-wrap: wrap; justify-content: center; }
.legend-row span { display: inline-flex; align-items: center; gap: 6px; }
.legend-dot { width: 9px; height: 9px; border-radius: 3px; }

/* 手机点单演示 */
.phone-demo-wrap { display: grid; grid-template-columns: auto 1fr; gap: 44px; align-items: center; }
.phone {
  width: 300px; height: 610px; border-radius: 42px; background: linear-gradient(160deg, #1A231E, #0B110E);
  padding: 10px; box-shadow: 0 24px 60px rgba(16, 24, 20, 0.28); flex: none;
}
.phone-screen { background: var(--bg); border-radius: 33px; height: 100%; overflow: hidden; position: relative; display: flex; flex-direction: column; }
.phone-status { height: 34px; display: flex; justify-content: space-between; align-items: center; padding: 0 22px; font-family: var(--font-mono); font-size: 10px; color: var(--muted); }
.phone-app-bar { display: flex; align-items: center; justify-content: space-between; padding: 6px 18px 10px; }
.phone-app-bar h4 { font-size: 16px; }
.mp-screens { flex: 1; position: relative; overflow: hidden; }
.mp-screen { position: absolute; inset: 0; padding: 0 16px 16px; overflow-y: auto; transition: transform 300ms var(--ease), opacity 300ms var(--ease); }
.mp-screen.hidden-right { transform: translateX(30%); opacity: 0; pointer-events: none; }
.mp-screen.hidden-left { transform: translateX(-30%); opacity: 0; pointer-events: none; }
.mp-item { display: flex; gap: 12px; background: var(--surface); border: 1px solid var(--border); border-radius: 15px; padding: 11px; margin-bottom: 10px; align-items: center; }
.mp-thumb { width: 52px; height: 52px; border-radius: 11px; background: var(--accent-soft); display: flex; align-items: center; justify-content: center; flex: none; }
.mp-thumb svg { width: 26px; height: 26px; color: var(--accent-deep); }
.mp-item .mi-info { flex: 1; }
.mp-item .mi-name { font-size: 14px; font-weight: 600; }
.mp-item .mi-desc { font-size: 11.5px; color: var(--muted); }
.mp-item .mi-price { font-family: var(--font-mono); font-size: 13px; color: var(--accent-deep); font-weight: 600; }
.mp-add { width: 28px; height: 28px; border-radius: 50%; border: none; background: var(--grad-accent); color: #06231A; font-size: 17px; line-height: 1; display: flex; align-items: center; justify-content: center; font-weight: 700; }
.mp-cart-bar { margin: 0 16px 14px; background: linear-gradient(160deg, #1A231E, #0B110E); color: #fff; border-radius: 15px; padding: 13px 16px; display: flex; justify-content: space-between; align-items: center; cursor: pointer; border: none; width: calc(100% - 32px); }
.mp-cart-bar .cb-count { font-family: var(--font-mono); font-size: 12px; opacity: 0.75; }
.mp-cart-bar .cb-total { font-family: var(--font-mono); font-weight: 600; font-size: 15px; }
.spec-group { margin-bottom: 16px; }
.spec-group .sg-label { font-size: 12.5px; color: var(--muted); margin-bottom: 8px; }
.spec-options { display: flex; gap: 8px; flex-wrap: wrap; }
.spec-opt { border: 1px solid var(--border-strong); background: var(--surface); border-radius: 11px; padding: 8px 15px; font-size: 13px; color: var(--ink-soft); }
.spec-opt.active { background: var(--grad-accent); border-color: transparent; color: #06231A; font-weight: 600; }
.mp-primary { width: 100%; border: none; background: var(--grad-accent); color: #06231A; border-radius: 13px; padding: 14px; font-weight: 650; font-size: 14.5px; }
.mp-success { display: flex; flex-direction: column; align-items: center; justify-content: center; height: 100%; gap: 12px; text-align: center; }
.success-ring { width: 76px; height: 76px; border-radius: 50%; background: var(--accent-soft); display: flex; align-items: center; justify-content: center; }
.success-ring svg { width: 34px; height: 34px; color: var(--accent-deep); }
.success-ring path { stroke-dasharray: 40; stroke-dashoffset: 40; animation: draw-check 500ms 200ms var(--ease) forwards; }
@keyframes draw-check { to { stroke-dashoffset: 0; } }
.mp-order-no { font-family: var(--font-mono); font-size: 12px; color: var(--muted); }
.mp-back { background: none; border: none; color: var(--ink-soft); font-size: 13px; display: inline-flex; align-items: center; gap: 4px; padding: 4px 0; }
.phone-note { display: grid; gap: 14px; align-content: center; }

/* ---------------- quote estimator ---------------- */
.quote-layout { display: grid; grid-template-columns: 1.25fr 1fr; gap: 28px; align-items: start; }
.quote-config { display: grid; gap: 26px; }
.q-group h3 { font-size: 17px; margin-bottom: 14px; }
.q-group h3 .q-step { font-family: var(--font-mono); font-size: 11px; color: var(--accent-deep); letter-spacing: 0.1em; margin-right: 10px; }
.svc-options { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.svc-opt { border: 1px solid var(--border-strong); border-radius: var(--r-md); background: var(--surface); padding: 17px 19px; text-align: left; transition: all var(--motion) var(--ease); }
.svc-opt:hover { border-color: var(--accent); transform: translateY(-1px); }
.svc-opt.active { border-color: var(--accent); background: var(--accent-soft); box-shadow: 0 0 0 1px var(--accent), 0 8px 24px rgba(16, 185, 129, 0.12); }
.svc-opt .so-name { font-weight: 650; font-size: 15px; }
.svc-opt .so-desc { font-size: 12.5px; color: var(--muted); margin-top: 3px; }
.module-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.mod-check { display: flex; align-items: center; justify-content: space-between; gap: 10px; border: 1px solid var(--border-strong); background: var(--surface); border-radius: 11px; padding: 13px 15px; cursor: pointer; transition: all var(--motion) var(--ease); font-size: 14px; }
.mod-check:hover { border-color: var(--accent); }
.mod-check.active { border-color: var(--accent); background: var(--accent-soft); }
.mod-check .mod-price { font-family: var(--font-mono); font-size: 12px; color: var(--accent-deep); }
.mod-check input { position: absolute; opacity: 0; pointer-events: none; }
.opt-row { display: flex; gap: 10px; flex-wrap: wrap; }
.opt-pill { border: 1px solid var(--border-strong); background: var(--surface); border-radius: var(--r-pill); padding: 9px 19px; font-size: 13.5px; color: var(--ink-soft); transition: all var(--motion) var(--ease); }
.opt-pill:hover { border-color: var(--accent); }
.opt-pill.active { background: var(--ink); border-color: var(--ink); color: #fff; }
.quote-result { position: sticky; top: 92px; background: linear-gradient(170deg, #0E1713, #12241C); color: var(--ink-text); border: 1px solid rgba(255, 255, 255, 0.09); border-radius: var(--r-lg); box-shadow: 0 24px 60px rgba(11, 17, 14, 0.35); padding: 30px; }
.quote-result h3, .quote-result h4 { color: var(--ink-text-2); }
.quote-result .qr-num { background: var(--grad-text); -webkit-background-clip: text; background-clip: text; color: transparent; }
.quote-result .qr-unit { color: var(--ink-text-2); }
.quote-result .qr-timeline { color: var(--ink-text-2); }
.quote-result .qr-table td { color: var(--ink-text-2); border-bottom-color: rgba(255, 255, 255, 0.08); }
.quote-result .qr-note { color: var(--ink-text-2); background: rgba(255, 255, 255, 0.05); border-color: rgba(255, 255, 255, 0.12); }
.quote-layout.form-open .quote-result { position: static; }

/* ---------------- forms ---------------- */
.form-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--r-lg); padding: 36px; box-shadow: var(--shadow-1); }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.form-grid .full { grid-column: 1 / -1; }
.field { display: flex; flex-direction: column; gap: 7px; }
.field label { font-size: 13.5px; font-weight: 600; color: var(--ink); }
.field label .req { color: var(--danger); margin-left: 3px; }
.field input, .field select, .field textarea {
  border: 1px solid var(--border-strong); border-radius: 11px; padding: 12px 14px;
  font: inherit; font-size: 14.5px; background: var(--surface); color: var(--ink); width: 100%;
  transition: border-color var(--motion) var(--ease), box-shadow var(--motion) var(--ease);
}
.field textarea { min-height: 120px; resize: vertical; }
.field input:focus, .field select:focus, .field textarea:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }
.field input:user-invalid, .field textarea:user-invalid, .field select:user-invalid { border-color: var(--danger); }
.field-error { display: none; font-size: 12.5px; color: var(--danger); }
.field-error.show { display: block; }
.form-summary { display: none; border: 1px solid var(--danger); background: var(--danger-soft); border-radius: var(--r-md); padding: 14px 18px; margin-bottom: 20px; }
.form-summary.show { display: block; }
.form-summary h3 { font-size: 14.5px; color: var(--danger); margin-bottom: 6px; }
.form-summary ul { list-style: none; display: grid; gap: 4px; }
.form-summary a { color: var(--danger); font-size: 13.5px; text-decoration: none; }
.form-summary a:hover { text-decoration: underline; }
.form-banner { display: none; border-radius: var(--r-md); padding: 12px 16px; font-size: 14px; margin-bottom: 18px; }
.form-banner.error { display: block; background: var(--danger-soft); border: 1px solid var(--danger); color: var(--danger); }
.form-success { display: none; text-align: center; padding: 26px 10px; }
.form-success.show { display: block; }
.success-icon { width: 64px; height: 64px; border-radius: 50%; background: var(--accent-soft); display: flex; align-items: center; justify-content: center; margin: 0 auto 18px; }
.success-icon svg { width: 30px; height: 30px; color: var(--accent-deep); }
.success-icon path { stroke-dasharray: 40; stroke-dashoffset: 40; animation: draw-check 500ms 150ms var(--ease) forwards; }
.ref-pill { font-family: var(--font-mono); font-size: 13px; background: var(--bg-tint); border: 1px solid var(--border-strong); padding: 7px 15px; border-radius: var(--r-pill); display: inline-block; margin: 10px 0 16px; color: var(--accent-deep); }

/* ---------------- CTA band ---------------- */
.cta-band { position: relative; overflow: hidden; background: var(--grad-accent); color: #06231A; border-radius: 24px; padding: 58px 60px; display: flex; justify-content: space-between; align-items: center; gap: 28px; flex-wrap: wrap; }
.cta-band::before {
  content: ''; position: absolute; inset: 0; pointer-events: none;
  background-image: radial-gradient(500px 240px at 88% -20%, rgba(255, 255, 255, 0.35), transparent 60%),
                    radial-gradient(420px 260px at 6% 120%, rgba(6, 35, 26, 0.25), transparent 60%);
}
.cta-band::after {
  content: ''; position: absolute; inset: 0; pointer-events: none;
  background-image: linear-gradient(rgba(6, 35, 26, 0.05) 1px, transparent 1px), linear-gradient(90deg, rgba(6, 35, 26, 0.05) 1px, transparent 1px);
  background-size: 48px 48px;
}
.cta-band > * { position: relative; z-index: 1; }
.cta-band h2 { font-size: clamp(26px, 3.2vw, 36px); letter-spacing: -0.02em; }
.cta-band p { opacity: 0.82; margin-top: 10px; max-width: 52ch; }
.cta-band .cta-actions { display: flex; gap: 12px; flex-wrap: wrap; }
.cta-band .btn-ghost-light { background: rgba(6, 35, 26, 0.22); border-color: rgba(6, 35, 26, 0.35); color: #06231A; font-weight: 600; }
.cta-band .btn-ghost-light:hover { background: rgba(6, 35, 26, 0.32); border-color: rgba(6, 35, 26, 0.6); }

/* ---------------- footer ---------------- */
.site-footer { background: var(--ink-bg); color: var(--ink-text); margin-top: 48px; position: relative; overflow: hidden; }
.site-footer::before {
  content: ''; position: absolute; inset: 0; pointer-events: none;
  background: radial-gradient(700px 300px at 90% 0%, rgba(52, 211, 153, 0.08), transparent 60%);
}
.footer-grid { position: relative; display: grid; grid-template-columns: 1.6fr 1fr 1fr 1.2fr; gap: 36px; padding: 64px 0 44px; }
.footer-brand p { color: var(--ink-text-2); font-size: 14px; margin-top: 16px; max-width: 34ch; }
.footer-col h4 { font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--ink-text-2); margin-bottom: 16px; font-weight: 500; }
.footer-col ul { list-style: none; display: grid; gap: 11px; }
.footer-col a { color: var(--ink-text-2); text-decoration: none; font-size: 14px; transition: color var(--motion) var(--ease); }
.footer-col a:hover { color: var(--accent-bright); }
.footer-col li { font-size: 14px; color: var(--ink-text-2); }
.footer-bottom { position: relative; border-top: 1px solid rgba(255, 255, 255, 0.08); padding: 22px 0 28px; display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; font-size: 12.5px; color: var(--ink-text-2); }
.footer-admin { color: var(--ink-text-2); font-size: 12.5px; text-decoration: none; border-bottom: 1px dashed rgba(255, 255, 255, 0.25); }
.footer-admin:hover { color: var(--accent-bright); }

/* ---------------- 悬浮智能客服 ---------------- */
.chat-fab {
  position: fixed; right: 22px; bottom: 22px; z-index: 90;
  width: 58px; height: 58px; border-radius: 50%; border: none;
  background: var(--grad-accent); color: #06231A; box-shadow: var(--glow), 0 16px 40px rgba(16, 185, 129, 0.4);
  display: flex; align-items: center; justify-content: center;
  transition: transform var(--motion) var(--ease), filter var(--motion) var(--ease);
}
.chat-fab:hover { transform: scale(1.06); filter: brightness(1.06); }
.chat-fab svg { width: 24px; height: 24px; }
.chat-fab .fab-dot { display: none; position: absolute; top: 2px; right: 2px; width: 13px; height: 13px; border-radius: 50%; background: #F59E0B; border: 2.5px solid #fff; }
.chat-fab.has-unread .fab-dot { display: block; }
.chat-fab .fab-close { display: none; }
.chat-fab.open .fab-open { display: none; }
.chat-fab.open .fab-close { display: block; }
.chat-widget {
  position: fixed; right: 22px; bottom: 92px; z-index: 90;
  width: 376px; max-width: calc(100vw - 32px); height: 548px; max-height: calc(100vh - 130px);
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--r-lg);
  box-shadow: 0 30px 80px rgba(11, 17, 14, 0.35); overflow: hidden; display: none; flex-direction: column;
}
.chat-widget.open { display: flex; }
.chat-widget-head { display: flex; align-items: center; gap: 12px; padding: 15px 18px; border-bottom: 1px solid var(--border); background: linear-gradient(160deg, #0E1713, #12241C); color: var(--ink-text); }
.chat-widget-head .cw-avatar { width: 36px; height: 36px; border-radius: 50%; background: var(--grad-accent); display: flex; align-items: center; justify-content: center; color: #06231A; }
.chat-widget-head .cw-avatar svg { width: 18px; height: 18px; }
.chat-widget-head .cw-name { font-size: 14px; font-weight: 650; }
.chat-widget-head .cw-status { font-size: 11.5px; color: var(--accent-bright); display: flex; align-items: center; gap: 5px; }
.chat-widget-head .cw-status::before { content: ''; width: 7px; height: 7px; border-radius: 50%; background: var(--accent-bright); }
.chat-widget .chat-log { max-height: none; }
.chat-widget .chat-quick { padding: 10px 16px 0; }
.chat-widget .chat-input-row { padding: 12px 16px 16px; }

/* ---------------- admin ---------------- */
.admin-body { background: var(--bg-tint); min-height: 100vh; }
.admin-header { background: var(--surface); border-bottom: 1px solid var(--border); }
.admin-header .header-inner { height: 62px; }
.admin-login { max-width: 400px; margin: 90px auto; }
.admin-shell { max-width: 1160px; margin: 0 auto; padding: 30px 28px 60px; }
.admin-stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; margin-bottom: 26px; }
.admin-tabs { display: flex; gap: 8px; margin-bottom: 20px; }
.tab-btn { border: 1px solid var(--border-strong); background: var(--surface); border-radius: 11px; padding: 9px 20px; font-size: 14px; color: var(--ink-soft); }
.tab-btn.active { background: var(--ink); border-color: var(--ink); color: #fff; }
.admin-table-wrap { background: var(--surface); border: 1px solid var(--border); border-radius: var(--r-lg); overflow-x: auto; box-shadow: var(--shadow-1); }
table.data-table { width: 100%; border-collapse: collapse; font-size: 13.5px; min-width: 760px; }
.data-table th { text-align: left; font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted); font-weight: 500; padding: 14px 16px; border-bottom: 1px solid var(--border); background: var(--bg-tint); white-space: nowrap; }
.data-table td { padding: 13px 16px; border-bottom: 1px solid var(--border); vertical-align: top; color: var(--ink-soft); }
.data-table tr:last-child td { border-bottom: none; }
.data-table td.strong { color: var(--ink); font-weight: 600; white-space: nowrap; }
.status-select { border: 1px solid var(--border-strong); border-radius: var(--r-pill); background: var(--surface); padding: 5px 10px; font-size: 12.5px; color: var(--ink-soft); }
.admin-empty { padding: 60px 20px; text-align: center; color: var(--muted); }
.admin-toolbar { display: flex; justify-content: space-between; align-items: center; gap: 12px; flex-wrap: wrap; margin-bottom: 16px; }
.admin-toolbar .at-actions { display: flex; gap: 10px; flex-wrap: wrap; }
.admin-note { font-size: 12.5px; color: var(--muted); margin-top: 14px; }

/* ---------------- 无障碍与杂项 ---------------- */
.skip-link {
  position: absolute; left: 16px; top: -48px; z-index: 100;
  background: var(--ink); color: #fff; padding: 9px 16px; border-radius: 0 0 10px 10px;
  font-size: 13.5px; text-decoration: none; transition: top var(--motion) var(--ease);
}
.skip-link:focus { top: 0; }
.back-top {
  position: fixed; left: 22px; bottom: 22px; z-index: 80;
  width: 44px; height: 44px; border-radius: 50%;
  background: var(--surface); color: var(--ink-soft); border: 1px solid var(--border-strong);
  box-shadow: var(--shadow-1); display: flex; align-items: center; justify-content: center;
  opacity: 0; visibility: hidden; transform: translateY(8px);
  transition: opacity var(--motion) var(--ease), transform var(--motion) var(--ease), visibility var(--motion) var(--ease), border-color var(--motion) var(--ease);
}
.back-top.show { opacity: 1; visibility: visible; transform: none; }
.back-top:hover { border-color: var(--accent); color: var(--accent-deep); }
.back-top svg { width: 18px; height: 18px; }
.hp-field { position: absolute !important; left: -9999px !important; top: -9999px !important; width: 1px; height: 1px; opacity: 0; pointer-events: none; }

/* ---------------- reveal 动效 ---------------- */
.reveal { opacity: 0; transform: translateY(18px); transition: opacity 600ms var(--ease), transform 600ms var(--ease); }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .flow-anim, .chat-msg.typing i, .success-ring path, .success-icon path { animation: none !important; }
  .success-ring path, .success-icon path { stroke-dashoffset: 0; }
  * { transition-duration: 1ms !important; }
}

/* ---------------- 响应式 ---------------- */
@media (max-width: 1024px) {
  .hero-grid { grid-template-columns: 1fr; gap: 44px; }
  .agent-console { max-width: 640px; }
  .services-grid { grid-template-columns: 1fr; }
  .svc-featured { grid-template-columns: 1fr; }
  .book-grid { grid-template-columns: 1fr; }
  .quote-layout { grid-template-columns: 1fr; }
  .process-grid { grid-template-columns: repeat(2, 1fr); gap: 30px; }
  .process-step::after { display: none; }
  .chat-shell { grid-template-columns: 1fr; }
  .chat-side { display: none; }
  .phone-demo-wrap { grid-template-columns: 1fr; justify-items: center; }
  .phone-note { justify-items: start; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 820px) {
  .main-nav { display: none; }
  .menu-btn { display: inline-flex; }
  .mobile-nav {
    display: none; position: fixed; inset: 70px 0 auto 0; z-index: 59;
    background: var(--surface); border-bottom: 1px solid var(--border);
    padding: 12px 28px 24px; box-shadow: var(--shadow-2);
  }
  .mobile-nav.open { display: block; }
  .mobile-nav a { display: block; padding: 13px 4px; text-decoration: none; color: var(--ink); font-size: 16px; font-weight: 600; border-bottom: 1px solid var(--border); }
  .mobile-nav a:last-child { border-bottom: none; }
  .section { padding: 64px 0; }
  .hero { padding: 56px 0 72px; }
  .page-hero { padding: 56px 0 44px; }
  .stats-grid { grid-template-columns: 1fr 1fr; gap: 22px; }
  .cases-grid { grid-template-columns: 1fr; }
  .case-card.case-wide { flex-direction: column; }
  .case-card.case-wide .case-cover { width: 100%; border-right: none; aspect-ratio: 16 / 8.2; }
  .case-detail-grid { grid-template-columns: 1fr; gap: 38px; }
  .demo-head { grid-template-columns: 1fr; }
  .dash-kpis { grid-template-columns: 1fr 1fr; }
  .dash-charts { grid-template-columns: 1fr; }
  .form-grid { grid-template-columns: 1fr; }
  .svc-options { grid-template-columns: 1fr; }
  .module-grid { grid-template-columns: 1fr; }
  .cta-band { padding: 40px 30px; }
  .admin-stats { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 560px) {
  .wrap { padding: 0 20px; }
  .stat .stat-value { font-size: 30px; }
  .phone { width: 272px; height: 560px; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .hero-actions .btn { width: 100%; }
  .qr-price .qr-num { font-size: 30px; }
  .quote-result { padding: 24px; }
}