/* ==========================================================================
   DTForest · 达塔森（青岛）大数据科技有限公司 — 官网共享设计系统
   --------------------------------------------------------------------------
   令牌与组件提取自原型导出（index / products / status / cms / contact）。
   页面级样式按 body.page-* 作用域隔离，避免跨页面选择器冲突。
   视觉契约（2026-10 改版）：现代深色科技风 —— 深石板蓝底 + 青紫渐变点缀，
   玻璃拟态 + 柔和辉光，保留网格/光环等轻量科技装饰，关闭依赖 JS canvas 的重层与噪点。
   圆角 8/6/4px，等宽字体标签，中文字体栈。
   ========================================================================== */

/* ========== 1. Design tokens ========== */
:root {
  /* 现代深色科技风：深石板蓝底 + 青紫渐变点缀，玻璃拟态 + 柔和辉光 */
  --bg: oklch(30% 0.02 250);
  /* 半透明表面：配合各组件的 backdrop-filter 形成玻璃拟态，透出底部辉光/网格 */
  --surface: oklch(34% 0.022 250 / 0.66);
  --surface-2: oklch(39% 0.024 250 / 0.48);
  --fg: oklch(96% 0.006 250);
  --muted: oklch(79% 0.02 250);
  --muted-strong: oklch(88% 0.018 250);
  --border: oklch(44% 0.02 250);
  /* 青蓝主色 + 紫罗兰辅色（渐变点缀，科技/超现代感；换色只改这里） */
  --accent: oklch(72% 0.16 220);
  --accent-strong: oklch(78% 0.16 220);
  --accent-dim: oklch(72% 0.16 220 / 0.16);
  --accent-glow: oklch(72% 0.16 220 / 0.30);
  --glow: oklch(72% 0.16 220 / 0.22);
  --accent-2: oklch(68% 0.2 300);
  --accent-2-dim: oklch(68% 0.2 300 / 0.16);
  --accent-2-glow: oklch(68% 0.2 300 / 0.22);
  --success: oklch(74% 0.15 160);
  --success-dim: oklch(74% 0.15 160 / 0.16);
  --warn: oklch(82% 0.16 80);
  --warn-dim: oklch(82% 0.16 80 / 0.16);
  --danger: oklch(70% 0.18 25);
  --danger-dim: oklch(70% 0.18 25 / 0.16);
  /* 中文优先字体栈：先 PingFang SC（macOS/iOS）→ Microsoft YaHei（Windows）
     → Noto Sans SC（Linux/Android）→ 系统回退；拉丁字符由 Inter/Segoe 承担 */
  --font-display: 'Inter', -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Noto Sans SC', system-ui, sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'SF Pro Text', 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Noto Sans SC', system-ui, sans-serif;
  --font-mono: 'SF Mono', 'JetBrains Mono', 'IBM Plex Mono', ui-monospace, 'Cascadia Mono', Consolas, monospace;
  --nav-h: 68px;
  --statusbar-h: 28px;
  /* 圆角令牌：卡片 10px / 控件 6px / 小型徽章 4px */
  --radius-card: 10px;
  --radius-ctrl: 6px;
  --radius-sm: 4px;
}

/* ========== 1b. 透明化：卡片/面板/控件统一玻璃拟态（半透明 + 背景模糊） ========== */
.shortcuts-panel,
body.page-home .hero-terminal,
body.page-home .hero-stat,
body.page-home .stat-card,
body.page-home .feature-card,
.data-pipeline .stage,
.inference-visual,
body.page-products .product-visual,
body.page-status .service-card,
body.page-status .metrics-card,
body.page-status .panel,
body.page-status .client-card,
body.page-cms .stat-card,
body.page-cms .table-wrap,
body.page-cms .qa-card,
body.page-cms .filter-bar select,
body.page-cms .filter-bar .search-input,
body.page-contact .form-group input,
body.page-contact .form-group textarea,
body.page-contact .form-group select,
body.page-contact .info-card,
body.page-contact .success-state,
#industry-news .news-item,
.holo-card::after {
  -webkit-backdrop-filter: blur(14px) saturate(1.25);
  backdrop-filter: blur(14px) saturate(1.25);
}

/* ========== 2. 现代深色科技风：保留网格/辉光/光环，仅关闭依赖 JS canvas 的重层与噪点 ========== */
.scanlines, .noise-overlay, .cursor-glow,
.data-matrix, .float-data-layer, .grid-3d,
#neuralCanvas, #dataStreamCanvas, #warpCanvas, #neonTrailCanvas { display: none !important; }
.float-data { display: none !important; }

/* ========== 3. Reset & base ========== */
* { box-sizing: border-box; margin: 0; padding: 0; }
html {
  scroll-behavior: smooth;
  /* 锚点跳转避开固定导航 */
  scroll-padding-top: calc(var(--nav-h) + 20px);
}
body {
  background: var(--bg);
  color: var(--fg);
  font: 400 16px/1.75 var(--font-body);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  font-feature-settings: 'tnum' 0;
  overflow-x: hidden;
  /* 让固定底部 AI 状态栏不遮挡页脚最后一行内容 */
  padding-bottom: var(--statusbar-h);
}
a { color: inherit; text-decoration: none; }
::selection { background: var(--accent); color: #fff; }
input, textarea, button, select { font: inherit; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: var(--radius-sm); }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

/* 图标全局基线：SVG 作为行内元素不被 flex 压缩，保持等比渲染 */
svg { flex-shrink: 0; }

/* ========== 3. 背景与氛围层 ========== */
.scanlines {
  position: fixed; inset: 0; z-index: 9997;
  pointer-events: none;
  background: repeating-linear-gradient(0deg, transparent, transparent 2px, rgba(0,0,0,0.03) 2px, rgba(0,0,0,0.03) 4px);
}
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background:
    radial-gradient(900px 520px at 80% -10%, oklch(72% 0.16 220 / 0.18), transparent 60%),
    radial-gradient(760px 520px at 8% 6%, oklch(68% 0.2 300 / 0.14), transparent 55%),
    radial-gradient(1000px 600px at 50% 112%, oklch(72% 0.16 220 / 0.10), transparent 60%),
    linear-gradient(60deg, oklch(72% 0.04 250 / 0.10) 1px, transparent 1px),
    linear-gradient(-60deg, oklch(72% 0.04 250 / 0.10) 1px, transparent 1px);
  background-size: auto, auto, auto, 64px 64px, 64px 64px;
  -webkit-mask-image: radial-gradient(ellipse 90% 70% at 50% 0%, black 35%, transparent 82%);
  mask-image: radial-gradient(ellipse 90% 70% at 50% 0%, black 35%, transparent 82%);
  pointer-events: none;
  z-index: 0;
}

#neuralCanvas {
  position: fixed; inset: 0;
  width: 100%; height: 100%;
  z-index: 0; pointer-events: none;
  opacity: 0.5;
}
#dataStreamCanvas {
  position: fixed; top: 0; right: 0;
  width: 80px; height: 100%;
  z-index: 0; pointer-events: none;
  opacity: 0.12;
  mask-image: linear-gradient(180deg, transparent 0%, black 15%, black 85%, transparent 100%);
  -webkit-mask-image: linear-gradient(180deg, transparent 0%, black 15%, black 85%, transparent 100%);
}
#warpCanvas { position: fixed; inset: 0; width: 100%; height: 100%; z-index: 0; pointer-events: none; opacity: 0.08; }
#neonTrailCanvas { position: fixed; inset: 0; width: 100%; height: 100%; z-index: 9996; pointer-events: none; opacity: 0.5; }
@media (pointer: coarse) { #neonTrailCanvas { display: none; } }

.float-data-layer { position: fixed; inset: 0; z-index: 0; pointer-events: none; overflow: hidden; }
.float-data {
  position: absolute;
  font: 400 10px/1 var(--font-mono);
  color: var(--accent);
  letter-spacing: 0.1em;
  opacity: 0;
  animation: floatDataUp 12s linear infinite;
  white-space: nowrap;
}
@keyframes floatDataUp {
  0% { transform: translateY(100vh) rotate(0deg); opacity: 0; }
  10% { opacity: 0.15; }
  90% { opacity: 0.15; }
  100% { transform: translateY(-100px) rotate(360deg); opacity: 0; }
}

.grid-3d { position: fixed; inset: 0; z-index: 0; pointer-events: none; perspective: 600px; overflow: hidden; }
.grid-3d-inner {
  position: absolute; bottom: 0; left: 50%;
  transform: translateX(-50%) rotateX(60deg);
  width: 200%; height: 200%;
  background-image:
    linear-gradient(90deg, var(--accent-dim) 0.5px, transparent 0.5px),
    linear-gradient(0deg, var(--accent-dim) 0.5px, transparent 0.5px);
  background-size: 60px 60px;
  opacity: 0.04;
  animation: gridScroll 20s linear infinite;
  transform-origin: bottom center;
}
@keyframes gridScroll {
  0% { transform: translateX(-50%) rotateX(60deg) translateY(0); }
  100% { transform: translateX(-50%) rotateX(60deg) translateY(60px); }
}

.data-matrix {
  position: fixed; top: 0; left: 0; right: 0; height: 100%;
  z-index: 0; pointer-events: none; overflow: hidden; opacity: 0.02;
}
.data-matrix .matrix-col {
  position: absolute; top: 0;
  font: 400 8px/1.2 var(--font-mono);
  color: var(--accent);
  writing-mode: vertical-rl;
  text-orientation: upright;
  letter-spacing: 0.1em;
  animation: matrixFall 20s linear infinite;
}
@keyframes matrixFall {
  0% { transform: translateY(-100%); }
  100% { transform: translateY(100vh); }
}

.noise-overlay {
  position: fixed; inset: 0; z-index: 9998;
  pointer-events: none; opacity: 0.012;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  background-repeat: repeat; background-size: 256px 256px;
}

.cursor-glow {
  position: fixed; pointer-events: none; z-index: 9999;
  width: 500px; height: 500px;
  border-radius: 50%;
  background: radial-gradient(circle, var(--accent-dim) 0%, transparent 60%);
  opacity: 0; transition: opacity 0.4s;
  will-change: transform; mix-blend-mode: screen;
  transform: translate(-250px, -250px);
}
.cursor-glow.show { opacity: 0.4; }
@media (pointer: coarse) { .cursor-glow { display: none; } }

.canvas-ripple-el {
  position: fixed; pointer-events: none; border-radius: 50%;
  border: 1px solid var(--accent); z-index: 9995;
  animation: canvasRipple 0.8s ease-out forwards;
}
@keyframes canvasRipple {
  0% { width: 0; height: 0; opacity: 0.6; transform: translate(-50%, -50%); }
  100% { width: 200px; height: 200px; opacity: 0; transform: translate(-50%, -50%); }
}

/* ========== 4. 通用特效 ========== */
.glitch { position: relative; display: inline-block; }
.glitch::before, .glitch::after {
  content: attr(data-text);
  position: absolute; top: 0; left: 0;
  width: 100%; height: 100%;
  pointer-events: none;
}
.glitch::before {
  color: oklch(68% 0.18 220);
  z-index: -1;
  animation: glitchShift 4s cubic-bezier(0.25, 0.46, 0.45, 0.94) infinite;
}
.glitch::after {
  color: oklch(70% 0.15 300);
  z-index: -2;
  animation: glitchShift 4s cubic-bezier(0.25, 0.46, 0.45, 0.94) 0.3s infinite;
}
@keyframes glitchShift {
  0%, 90%, 100% { transform: translate(0); opacity: 0; }
  92% { transform: translate(-3px, 1px); opacity: 0.4; }
  94% { transform: translate(3px, -1px); opacity: 0.3; }
  96% { transform: translate(-2px, 2px); opacity: 0.5; }
  98% { transform: translate(2px, -2px); opacity: 0.2; }
}

.holo-card { position: relative; overflow: hidden; }
.holo-card::before {
  content: '';
  position: absolute; top: -2px; left: -2px; right: -2px; bottom: -2px;
  border-radius: inherit;
  background: conic-gradient(
    from var(--angle, 0deg),
    transparent 0deg,
    var(--accent-dim) 60deg,
    transparent 120deg,
    transparent 180deg,
    var(--accent-2-dim) 240deg,
    transparent 300deg,
    transparent 360deg
  );
  z-index: -1;
  animation: holoRotate 6s linear infinite;
  opacity: 0.6;
}
.holo-card::after {
  content: '';
  position: absolute; top: -1px; left: -1px; right: -1px; bottom: -1px;
  border-radius: inherit;
  background: var(--surface);
  z-index: -1;
}
@keyframes holoRotate { to { --angle: 360deg; } }
@property --angle { syntax: '<angle>'; initial-value: 0deg; inherits: false; }

.holo-flicker { animation: holoFlicker 8s infinite; }
@keyframes holoFlicker {
  0%, 100% { opacity: 1; }
  3% { opacity: 0.85; filter: brightness(1.1); }
  6% { opacity: 1; }
  7% { opacity: 0.92; }
  8% { opacity: 1; }
  45% { opacity: 1; }
  48% { opacity: 0.88; filter: brightness(1.15); }
  50% { opacity: 1; }
}

.float-y { animation: floatY 6s ease-in-out infinite; }
.float-y:nth-child(2) { animation-delay: -2s; }
.float-y:nth-child(3) { animation-delay: -4s; }
@keyframes floatY {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}
@media (hover: none) { .float-y { animation: none; } }

/* 光束为 120% 宽 + translateX 动画，会超出视口造成文档横向溢出。
   用 overflow-x:clip 水平裁剪（不同于 hidden：clip 不会把 overflow-y 强制成 auto，
   因此垂直方向的 blur 辉光不被裁掉），几何与动画保持原型原样。 */
.scanner-divider { position: relative; height: 1px; background: var(--border); overflow-x: clip; overflow-y: visible; }
.scanner-divider::after {
  content: '';
  position: absolute; top: -1px; left: -10%;
  width: 120%; height: 3px;
  background: linear-gradient(90deg, transparent 0%, var(--accent) 50%, transparent 100%);
  animation: scannerSweep 4s ease-in-out infinite;
  filter: blur(1px);
}
@keyframes scannerSweep {
  0% { transform: translateX(-30%); opacity: 0; }
  50% { transform: translateX(30%); opacity: 1; }
  100% { transform: translateX(-30%); opacity: 0; }
}

.page-enter { animation: pageEnter 0.8s cubic-bezier(0.16, 1, 0.3, 1); }
@keyframes pageEnter {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}

[data-reveal] {
  opacity: 0; transform: translateY(28px);
  transition: opacity 0.7s cubic-bezier(0.16, 1, 0.3, 1), transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}
[data-reveal].visible { opacity: 1; transform: translateY(0); }
[data-reveal-delay="1"] { transition-delay: 0.08s; }
[data-reveal-delay="2"] { transition-delay: 0.16s; }
[data-reveal-delay="3"] { transition-delay: 0.24s; }
[data-reveal-delay="4"] { transition-delay: 0.32s; }
[data-reveal-delay="5"] { transition-delay: 0.4s; }
[data-reveal-delay="6"] { transition-delay: 0.48s; }

.tilt-card { transform-style: preserve-3d; will-change: transform; transition: transform 0.1s ease-out; }
.magnetic { transition: transform 0.2s cubic-bezier(0.34, 1.56, 0.64, 1); }
.ripple-btn { position: relative; overflow: hidden; }
.ripple-btn .ripple-el {
  position: absolute; border-radius: 50%;
  background: rgba(255,255,255,0.15);
  transform: scale(0);
  animation: rippleAnim 0.6s ease-out;
  pointer-events: none;
}
@keyframes rippleAnim { to { transform: scale(4); opacity: 0; } }

/* ========== 5. 滚动进度 / 快捷键 / AI 状态栏 ========== */
.scroll-progress {
  position: fixed; top: 0; left: 0; right: 0; height: 2px; z-index: 9999;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  transform-origin: left center; transform: scaleX(0);
  transition: transform 0.1s linear; pointer-events: none;
}
.shortcuts-overlay {
  position: fixed; inset: 0; z-index: 10000;
  background: rgba(18, 24, 40, 0.5); backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(20px);
  display: none; align-items: center; justify-content: center;
  opacity: 0; transition: opacity 0.3s;
}
.shortcuts-overlay.show { display: flex; opacity: 1; }
.shortcuts-panel {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-card);
  padding: 40px; max-width: 500px; width: 90%;
}
.shortcuts-panel h2 {
  font: 600 20px/1 var(--font-display); letter-spacing: -0.01em;
  margin-bottom: 24px; display: flex; align-items: center; gap: 12px;
}
.shortcuts-panel h2 .close-btn {
  margin-left: auto; width: 32px; height: 32px; border-radius: 4px;
  border: 1px solid var(--border); background: transparent; color: var(--muted);
  cursor: pointer; display: grid; place-items: center; transition: all 0.15s;
}
.shortcuts-panel h2 .close-btn:hover { color: var(--fg); border-color: var(--accent); }
.shortcut-row { display: flex; align-items: center; justify-content: space-between; padding: 10px 0; border-bottom: 1px solid var(--border); }
.shortcut-row:last-child { border-bottom: none; }
.shortcut-row .key {
  display: inline-flex; align-items: center; gap: 4px;
  padding: 4px 10px; border-radius: 4px; border: 1px solid var(--border);
  font: 400 12px/1 var(--font-mono); color: var(--accent); background: var(--surface-2);
  letter-spacing: 0.02em;
}
.shortcut-row .desc { font: 500 14px/1 var(--font-body); color: var(--muted); }
.shortcut-hint {
  position: fixed; bottom: 40px; right: 24px; z-index: 998;
  font: 400 11px/1 var(--font-mono); color: var(--muted); letter-spacing: 0.08em;
  opacity: 0.5; transition: opacity 0.3s; pointer-events: none;
  animation: hintPulse 4s ease-in-out infinite;
}
@media (pointer: coarse) { .shortcut-hint { display: none; } }
@keyframes hintPulse { 0%, 100% { opacity: 0.3; } 50% { opacity: 0.6; } }

.ai-status-bar {
  position: fixed; bottom: 0; left: 0; right: 0;
  z-index: 99; height: var(--statusbar-h);
  background: rgba(32, 40, 60, 0.58);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(14px);
  border-top: 1px solid var(--border);
  display: flex; align-items: center;
  padding: 0 24px; gap: 24px;
  font: 400 11px/1 var(--font-mono);
  color: var(--muted); letter-spacing: 0.02em;
  white-space: nowrap; overflow: hidden;
}
.ai-status-bar .ai-indicator { display: flex; align-items: center; gap: 6px; color: var(--accent); }
.ai-status-bar .ai-indicator .ai-dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--accent); box-shadow: 0 0 8px var(--accent);
  animation: aiPulse 1.5s ease-in-out infinite;
}
@keyframes aiPulse { 0%, 100% { opacity: 1; transform: scale(1); } 50% { opacity: 0.5; transform: scale(0.7); } }
.ai-status-bar .ai-stat { color: var(--fg); }
.ai-status-bar .ai-stat .val { color: var(--accent); }
.ai-status-bar .ai-divider { width: 1px; height: 12px; background: var(--border); }
@media (max-width: 640px) {
  .ai-status-bar .ai-stat:nth-of-type(3), .ai-status-bar .ai-divider:nth-of-type(2) { display: none; }
}

/* ========== 6. 导航 ========== */
nav {
  position: fixed; top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(32, 40, 60, 0.55);
  backdrop-filter: blur(18px) saturate(1.4);
  -webkit-backdrop-filter: blur(28px) saturate(1.6);
  border-bottom: 1px solid var(--border);
}
nav::after {
  content: '';
  position: absolute; bottom: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent 0%, var(--accent) 50%, transparent 100%);
  opacity: 0.15;
  animation: navGlow 4s ease-in-out infinite;
}
@keyframes navGlow { 0%, 100% { opacity: 0.1; } 50% { opacity: 0.25; } }
nav .container { display: flex; align-items: center; justify-content: space-between; height: var(--nav-h); }
.logo { display: flex; align-items: center; gap: 14px; font: 700 22px/1 var(--font-display); letter-spacing: -0.01em; }
.logo-mark {
  width: 34px; height: 34px;
  border: 2px solid var(--accent);
  border-radius: 8px;
  display: grid; place-items: center;
  font: 700 14px/1 var(--font-mono);
  color: var(--accent);
  letter-spacing: 0;
  box-shadow: 0 0 12px var(--accent-glow), 0 0 24px var(--accent-glow);
  animation: logoPulse 3s ease-in-out infinite;
}
@keyframes logoPulse {
  0%, 100% { box-shadow: 0 0 12px var(--accent-glow), 0 0 24px var(--accent-glow); }
  50% { box-shadow: 0 0 20px var(--accent-dim), 0 0 40px var(--accent-dim); }
}
/* 已上传图片 Logo：全程透明展示，不使用任何底色/衬底块。
   透明底 + 深色墨稿的 logo 由 logo-adapt.js 做像素级墨色提亮（保留 alpha），
   CSS 只补一层极轻的柔和投影，让 logo 在极光/网格背景上保有分离度。 */
.logo-mark.has-logo {
  height: auto; width: auto;
  border: none; border-radius: 0;
  background: none; box-shadow: none;
  padding: 0; margin: 0;
  display: inline-flex; align-items: center;
  animation: none;
}
.logo-mark.has-logo img {
  display: block;
  filter: drop-shadow(0 1px 2px rgba(6, 12, 24, 0.55)) drop-shadow(0 0 12px rgba(8, 16, 32, 0.30));
  transition: filter 0.25s ease, transform 0.25s ease;
}
.logo:hover .logo-mark.has-logo img { filter: drop-shadow(0 1px 2px rgba(6, 12, 24, 0.6)) drop-shadow(0 0 16px color-mix(in oklab, var(--accent) 45%, transparent)); }
.logo-sub {
  font: 400 12px/1.2 var(--font-body);
  letter-spacing: 0.04em;
  color: var(--muted); margin-top: 3px;
}
.nav-links { display: flex; align-items: center; gap: 36px; }
.nav-links a {
  font: 500 14px/1 var(--font-body);
  letter-spacing: 0.02em;
  color: var(--muted);
  transition: color 0.2s, text-shadow 0.2s;
  position: relative;
  padding: 6px 2px;
}
.nav-links a:hover { color: var(--fg); text-shadow: 0 0 20px var(--accent-glow), 0 0 40px var(--accent-glow); }
.nav-links a.active { color: var(--fg); text-shadow: 0 0 20px var(--accent-glow), 0 0 40px var(--accent-glow); }
.nav-links a.active::after {
  content: '';
  position: absolute; bottom: -6px; left: 0; right: 0;
  height: 1.5px; background: var(--accent); border-radius: 1px;
  box-shadow: 0 0 12px var(--accent), 0 0 24px var(--accent-glow);
}

/* ========== 7. 按钮 ========== */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 14px 32px;
  border-radius: var(--radius-ctrl);
  font: 500 14px/1 var(--font-body);
  letter-spacing: 0.02em;
  cursor: pointer;
  transition: all 0.25s;
  border: 1px solid transparent;
  position: relative;
  overflow: hidden;
}
.btn::before {
  content: '';
  position: absolute; top: 0; left: -100%;
  width: 100%; height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.05), transparent);
  transition: left 0.5s;
}
.btn:hover::before { left: 100%; }
.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #fff;
  border-color: transparent;
  box-shadow: 0 4px 18px var(--accent-dim), 0 0 22px var(--accent-glow);
}
.btn:active { transform: scale(0.95); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; transform: none !important; }
.btn-primary:hover {
  background: linear-gradient(135deg, var(--accent-strong), var(--accent-2));
  box-shadow: 0 8px 28px var(--accent-glow), 0 0 30px var(--accent-glow);
  transform: translateY(-2px);
}
.btn-primary:focus-visible { outline: 2px solid var(--fg); outline-offset: 2px; }
.btn-secondary {
  background: transparent;
  color: var(--fg);
  border-color: var(--border);
}
.btn-secondary:hover {
  border-color: var(--accent);
  background: var(--accent-dim);
  box-shadow: 0 0 20px var(--accent-glow);
}

/* ========== 8. 页脚（index / products / contact 共用） ========== */
footer {
  border-top: 1px solid var(--border);
  padding: 80px 0 40px;
  z-index: 1;
  position: relative;
}
footer .container { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; }
footer h4 {
  font: 500 13px/1 var(--font-body);
  letter-spacing: 0.04em;
  margin-bottom: 16px;
  color: var(--fg);
}
footer p, footer a { font-size: 14px; color: var(--muted); line-height: 1.8; }
footer a:hover { color: var(--fg); text-shadow: 0 0 12px var(--accent-glow); }
footer .col p { max-width: 320px; }
.footer-bottom {
  margin-top: 40px; padding-top: 20px;
  border-top: 1px solid var(--border);
  text-align: center; font-size: 13px; color: var(--muted);
}

/* 后管托管的站点信息条（页脚居中展示：公司名称 · ICP · 电话 · 版权） */
.site-bind-bar {
  display: block; width: 100%; box-sizing: border-box;
  grid-column: 1 / -1; /* footer .container 为多列 grid，信息条独占整行 */
  text-align: center !important;
  color: var(--muted); font-size: 13px; line-height: 1.9;
  padding: 16px 12px 4px; margin: 18px 0 0;
  border-top: 1px solid var(--border);
}
.site-bind-bar a { color: var(--muted); text-decoration: none; border-bottom: 1px dashed currentColor; }
.site-bind-bar a:hover { color: var(--fg); }

/* ========== 9. 页面 Hero（products / contact 共用基线） ========== */
.page-hero { padding: 140px 0 60px; position: relative; z-index: 1; }
.page-hero h1 {
  font: 700 clamp(36px, 4vw, 52px)/1.15 var(--font-display);
  letter-spacing: -0.01em;
  margin-bottom: 16px;
}
.page-hero p { font-size: 17px; color: var(--muted); max-width: 560px; line-height: 1.75; }
.page-hero .section-label {
  display: inline-flex; align-items: center; gap: 8px;
  font: 400 12px/1 var(--font-mono);
  letter-spacing: 0.06em;
  color: var(--accent);
  margin-bottom: 16px;
}
.page-hero .section-label::before { content: '//'; font-weight: 700; text-shadow: 0 0 8px var(--accent); }

/* ==========================================================================
   10. 首页（index.html）
   ========================================================================== */
body.page-home section { padding: 120px 0; position: relative; z-index: 1; }

body.page-home .hero {
  min-height: 100vh;
  display: flex; align-items: center;
  position: relative; overflow: hidden;
  padding: 120px 0 80px;
  z-index: 1;
}
body.page-home .hero::after {
  content: '';
  position: absolute; top: -10%; right: -5%;
  width: 600px; height: 600px;
  background: radial-gradient(circle, var(--accent-2-dim) 0%, transparent 60%);
  pointer-events: none;
  animation: floatY 10s ease-in-out infinite;
}
body.page-home .hero .pulse-rings {
  position: absolute; top: 50%; right: 15%;
  transform: translate(-50%, -50%);
  pointer-events: none; z-index: 0;
}
body.page-home .hero .pulse-ring {
  position: absolute; top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  pointer-events: none;
  border-radius: 50%;
  border: 1px solid var(--accent);
  opacity: 0;
  animation: pulseRingAnim 3s ease-out infinite;
}
body.page-home .hero .pulse-ring:nth-child(1) { width: 100px; height: 100px; }
body.page-home .hero .pulse-ring:nth-child(2) { width: 200px; height: 200px; animation-delay: 1s; }
body.page-home .hero .pulse-ring:nth-child(3) { width: 300px; height: 300px; animation-delay: 2s; }
@keyframes pulseRingAnim {
  0% { opacity: 0.5; transform: translate(-50%, -50%) scale(0.5); }
  100% { opacity: 0; transform: translate(-50%, -50%) scale(2); }
}
body.page-home .hero .container {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 80px;
  align-items: center;
  position: relative;
  z-index: 1;
}
body.page-home .hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 6px 14px;
  border-radius: 4px;
  border: 1px solid var(--accent-dim);
  font: 400 11px/1 var(--font-mono);
  letter-spacing: 0.06em; text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 24px;
  background: var(--accent-dim);
  box-shadow: 0 0 20px var(--accent-glow), inset 0 0 20px var(--accent-glow);
}
body.page-home .hero-badge::before {
  content: '►';
  font-size: 8px;
  animation: pulse-dot 2s ease-in-out infinite;
}
@keyframes pulse-dot { 0%, 100% { opacity: 1; } 50% { opacity: 0.4; } }
body.page-home .hero h1 {
  font: 700 clamp(42px, 5vw, 72px)/1.1 var(--font-display);
  letter-spacing: -0.01em;
  margin-bottom: 20px;
}
body.page-home .hero h1 .gradient {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
body.page-home .hero p {
  font-size: 17px;
  color: var(--muted);
  max-width: 500px;
  line-height: 1.8;
  margin-bottom: 40px;
}
body.page-home .hero-cta { display: flex; gap: 16px; flex-wrap: wrap; }

body.page-home .hero-visual { position: relative; display: grid; gap: 12px; }
body.page-home .hero-visual::before {
  content: '';
  position: absolute; top: -40px; right: -40px;
  width: 200px; height: 200px;
  background: radial-gradient(circle, var(--accent-2-dim) 0%, transparent 60%);
  pointer-events: none;
  animation: floatY 8s ease-in-out infinite;
}
body.page-home .hero-terminal {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  padding: 24px;
  font: 400 13px/1.7 var(--font-mono);
  position: relative;
  overflow: hidden;
  box-shadow: 0 0 30px var(--accent-glow);
}
body.page-home .hero-terminal::before {
  content: '';
  position: absolute; top: 0; left: 0; right: 0;
  height: 32px;
  background: rgba(255,255,255,0.05);
  border-bottom: 1px solid var(--border);
  border-radius: var(--radius-card) var(--radius-card) 0 0;
}
body.page-home .hero-terminal .term-dots { display: flex; gap: 6px; position: absolute; top: 10px; left: 16px; }
body.page-home .hero-terminal .term-dots span { width: 8px; height: 8px; border-radius: 50%; }
body.page-home .hero-terminal .term-dots span:nth-child(1) { background: #ff5f57; }
body.page-home .hero-terminal .term-dots span:nth-child(2) { background: #febc2e; }
body.page-home .hero-terminal .term-dots span:nth-child(3) { background: #28c840; }
body.page-home .hero-terminal .term-content { margin-top: 40px; }
body.page-home .hero-terminal .term-content .prompt { color: var(--accent); }
body.page-home .hero-terminal .term-content .output { color: var(--muted); }
body.page-home .hero-terminal .term-content .highlight { color: var(--fg); }
.interactive-terminal { cursor: text; position: relative; }
.interactive-terminal .term-input-line { display: flex; align-items: center; }
.interactive-terminal .term-input-line .prompt { color: var(--accent); flex-shrink: 0; }
.interactive-terminal .term-input-line input {
  background: transparent; border: none; color: var(--fg); outline: none;
  font: inherit; flex: 1; padding: 0; margin: 0; caret-color: var(--accent);
  min-width: 0;
}
.interactive-terminal .term-input-line input::placeholder { color: var(--muted); opacity: 0.3; }
.interactive-terminal .term-output { color: var(--muted); }
.interactive-terminal .term-output .succ { color: oklch(74% 0.15 160); }
.interactive-terminal .term-output .err { color: oklch(70% 0.18 25); }
.interactive-terminal .term-output .info { color: var(--accent); }
.interactive-terminal .term-output .highlight { color: var(--fg); }
body.page-home .hero-terminal .cursor {
  display: inline-block;
  width: 8px; height: 16px;
  background: var(--accent);
  animation: blink 1s step-end infinite;
  vertical-align: text-bottom;
  box-shadow: 0 0 8px var(--accent);
}
@keyframes blink { 50% { opacity: 0; } }

body.page-home .hero-stats { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
body.page-home .hero-stat {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  padding: 20px;
  position: relative;
  overflow: hidden;
}
body.page-home .hero-stat::before {
  content: '';
  position: absolute; top: 0; left: 0;
  width: 3px; height: 100%;
  background: var(--accent);
  opacity: 0.3;
  box-shadow: 0 0 12px var(--accent);
}
body.page-home .hero-stat .stat-label {
  font: 500 12px/1 var(--font-body);
  letter-spacing: 0.02em;
  color: var(--muted);
  margin-bottom: 6px;
}
body.page-home .hero-stat .stat-value {
  font: 700 28px/1 var(--font-display);
  letter-spacing: -0.02em;
  color: var(--accent);
  text-shadow: 0 0 20px var(--accent-glow);
}
body.page-home .hero-stat .stat-desc { font-size: 13px; color: var(--muted); margin-top: 4px; }

body.page-home .section-label {
  display: inline-flex; align-items: center; gap: 8px;
  font: 400 12px/1 var(--font-mono);
  letter-spacing: 0.06em;
  color: var(--accent);
  margin-bottom: 16px;
}
body.page-home .section-label::before { content: '//'; font-weight: 700; text-shadow: 0 0 8px var(--accent); }
body.page-home .section-title {
  font: 700 clamp(32px, 3.5vw, 48px)/1.15 var(--font-display);
  letter-spacing: -0.01em;
  margin-bottom: 16px;
}
body.page-home .section-desc {
  font-size: 17px;
  color: var(--muted);
  max-width: 560px;
  line-height: 1.8;
}

body.page-home .about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  margin-top: 60px;
  align-items: start;
}
body.page-home .about-text p { color: var(--muted); font-size: 16px; line-height: 1.8; margin-bottom: 20px; }
body.page-home .about-text strong { color: var(--fg); }
body.page-home .about-stats { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
body.page-home .stat-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  padding: 28px;
  position: relative;
  overflow: hidden;
}
body.page-home .stat-card::before {
  content: '';
  position: absolute; top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--accent-dim), var(--accent), var(--accent-dim), transparent);
  animation: holoSlide 3s ease-in-out infinite;
}
@keyframes holoSlide { 0%, 100% { opacity: 0.3; } 50% { opacity: 1; } }
body.page-home .stat-card .stat-num {
  font: 700 40px/1 var(--font-display);
  letter-spacing: -0.02em;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 6px;
  text-shadow: 0 0 30px var(--accent-glow);
}
body.page-home .stat-card .stat-label { font-size: 14px; color: var(--muted); }

body.page-home .featured-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 20px;
  margin-top: 60px;
}
body.page-home .feature-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  padding: 36px 28px;
  transition: all 0.3s;
  position: relative;
  overflow: hidden;
}
body.page-home .feature-card::after {
  content: '';
  position: absolute; top: 0; left: 0; right: 0;
  height: 2px;
  background: transparent;
  transition: background 0.3s;
}
body.page-home .feature-card:hover {
  border-color: var(--accent);
  transform: translateY(-4px);
  box-shadow: 0 8px 40px rgba(0,0,0,0.3), 0 0 30px var(--accent-glow);
}
body.page-home .feature-card:hover::after {
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  animation: holoSlide 2s ease-in-out infinite;
}
body.page-home .feature-card .icon {
  width: 52px; height: 52px;
  border-radius: var(--radius-ctrl);
  border: 1px solid var(--border);
  background: var(--accent-dim);
  display: grid; place-items: center;
  margin-bottom: 20px;
  color: var(--accent);
  transition: border-color 0.3s, background 0.3s, box-shadow 0.3s;
}
body.page-home .feature-card:hover .icon {
  border-color: var(--accent);
  box-shadow: 0 0 16px var(--accent-glow);
}
body.page-home .feature-card .icon svg { width: 26px; height: 26px; }
body.page-home .feature-card h3 { font: 600 18px/1.3 var(--font-display); letter-spacing: -0.01em; margin-bottom: 10px; }
body.page-home .feature-card p { font-size: 14px; color: var(--muted); line-height: 1.6; }

body.page-home .tech-strip {
  padding: 80px 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  z-index: 1;
  position: relative;
}
body.page-home .tech-strip .container {
  display: flex; align-items: center; justify-content: space-between;
  flex-wrap: wrap; gap: 40px;
}
body.page-home .tech-strip span {
  font: 500 14px/1 var(--font-mono);
  letter-spacing: 0.04em;
  color: var(--muted);
  text-transform: uppercase;
  position: relative;
}
body.page-home .tech-strip span::before { content: '# '; color: var(--accent-dim); }
body.page-home .tech-strip span::after {
  content: '';
  display: inline-block;
  width: 4px; height: 4px;
  border-radius: 50%;
  background: var(--accent);
  margin-left: 8px;
  vertical-align: middle;
  box-shadow: 0 0 8px var(--accent);
  animation: pulse-dot 2s ease-in-out infinite;
}

/* 首页数据管道 & 推理负载条 */
.data-pipeline {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 6px;
  margin-top: 16px;
  position: relative;
}
.data-pipeline .stage {
  padding: 10px 6px;
  text-align: center;
  border: 1px solid var(--border);
  border-radius: var(--radius-ctrl);
  background: var(--surface);
  position: relative;
  transition: border-color 0.3s, background 0.3s;
}
.data-pipeline .stage.active { border-color: var(--accent-dim); background: var(--accent-dim); }
.data-pipeline .stage .stage-label {
  font: 500 11px/1 var(--font-body);
  letter-spacing: 0.02em;
  color: var(--muted);
}
.data-pipeline .stage.active .stage-label { color: var(--accent); }
.data-pipeline .stage .stage-icon {
  display: flex; align-items: center; justify-content: center;
  height: 22px; margin-bottom: 6px;
  color: var(--muted);
  transition: color 0.3s;
}
.data-pipeline .stage.active .stage-icon { color: var(--accent); }
.data-pipeline .stage .stage-icon svg { width: 18px; height: 18px; }
.data-pipeline .pipeline-flow {
  position: absolute; top: 50%; left: 0; right: 0;
  height: 1px; background: var(--border);
  pointer-events: none; z-index: -1;
}
.data-pipeline .pipeline-flow .flow-particle {
  position: absolute; top: -2px;
  width: 4px; height: 4px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 8px var(--accent);
  animation: flowParticle 4s linear infinite;
}
@keyframes flowParticle {
  0% { left: -10px; opacity: 0; }
  10% { opacity: 1; }
  90% { opacity: 1; }
  100% { left: calc(100% + 10px); opacity: 0; }
}

.inference-visual {
  display: flex; align-items: center; gap: 8px;
  margin-top: 12px;
  padding: 8px 12px;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: var(--surface-2);
}
.inference-visual .inference-bar {
  flex: 1; height: 4px;
  background: var(--border);
  border-radius: 2px;
  overflow: hidden;
  position: relative;
}
.inference-visual .inference-bar .fill {
  height: 100%; width: 0%;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  border-radius: 2px;
  animation: inferenceFill 2s ease-in-out infinite;
}
@keyframes inferenceFill {
  0% { width: 30%; }
  50% { width: 85%; }
  100% { width: 30%; }
}
.inference-visual .inference-label {
  font: 400 9px/1 var(--font-mono);
  color: var(--muted);
  letter-spacing: 0.04em;
  white-space: nowrap;
}

/* ==========================================================================
   11. 产品页（products.html）
   ========================================================================== */
body.page-products section { padding: 80px 0; position: relative; z-index: 1; }
body.page-products .section-title {
  font: 700 clamp(28px, 2.5vw, 36px)/1.2 var(--font-display);
  letter-spacing: -0.01em;
  margin-bottom: 12px;
}
body.page-products .product-grid { display: grid; gap: 80px; margin-top: 60px; }
body.page-products .product-card {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}
body.page-products .product-card:nth-child(even) .product-visual { order: -1; }
body.page-products .product-visual {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  padding: 40px;
  min-height: 340px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  position: relative;
  overflow: hidden;
}
body.page-products .product-visual::before {
  content: '';
  position: absolute; top: -30%; right: -20%;
  width: 350px; height: 350px;
  background: radial-gradient(circle, var(--accent-glow) 0%, transparent 60%);
  pointer-events: none;
}
body.page-products .product-visual::after {
  content: '';
  position: absolute; top: 0; left: 0;
  width: 3px; height: 100%;
  background: var(--accent);
  opacity: 0.2;
  box-shadow: 0 0 12px var(--accent);
}
body.page-products .product-visual .badge {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 5px 12px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--accent-dim);
  font: 500 11px/1 var(--font-mono);
  letter-spacing: 0.06em;
  color: var(--accent);
  margin-bottom: 16px;
  background: var(--accent-dim);
  align-self: flex-start;
  box-shadow: 0 0 12px var(--accent-glow);
}
body.page-products .product-visual .pv-title {
  font: 600 22px/1.2 var(--font-display);
  letter-spacing: -0.01em;
  margin-bottom: 8px;
}
body.page-products .product-visual .pv-desc { font-size: 14px; color: var(--muted); line-height: 1.6; }
body.page-products .product-visual .pv-stat {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-top: 24px;
}
body.page-products .product-visual .pv-stat-item span:first-child {
  display: block;
  font: 500 11px/1 var(--font-body);
  letter-spacing: 0.02em;
  color: var(--muted);
}
body.page-products .product-visual .pv-stat-item span:last-child {
  font: 600 20px/1 var(--font-display);
  letter-spacing: -0.01em;
  display: block;
  margin-top: 4px;
  color: var(--accent);
  text-shadow: 0 0 12px var(--accent-glow);
}
body.page-products .product-info h3 {
  font: 600 24px/1.2 var(--font-display);
  letter-spacing: -0.01em;
  margin-bottom: 16px;
}
body.page-products .product-info > p {
  font-size: 16px;
  color: var(--muted);
  line-height: 1.8;
  margin-bottom: 20px;
}
body.page-products .product-features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
body.page-products .product-features li {
  display: flex; align-items: flex-start; gap: 12px;
  font-size: 15px;
  line-height: 1.6;
  color: var(--fg);
  padding-left: 0;
}
body.page-products .product-features li::before {
  content: '▹';
  color: var(--accent);
  font-weight: 700;
  flex-shrink: 0;
  text-shadow: 0 0 8px var(--accent);
}
body.page-products .tech-specs { margin-top: 20px; display: flex; flex-wrap: wrap; gap: 8px; }
body.page-products .tech-tag {
  font: 500 12px/1 var(--font-mono);
  padding: 6px 12px;
  border-radius: var(--radius-ctrl);
  border: 1px solid var(--border);
  color: var(--muted);
  letter-spacing: 0.02em;
  transition: border-color 0.2s, color 0.2s, box-shadow 0.2s;
}
body.page-products .tech-tag:hover {
  border-color: var(--accent-dim);
  color: var(--accent);
  box-shadow: 0 0 12px var(--accent-glow);
}
body.page-products .btn { margin-top: 28px; padding: 12px 28px; }

/* ==========================================================================
   12. 服务状态页（status.html）
   ========================================================================== */
body.page-status .page-hero { position: relative; z-index: 1; padding: 140px 0 80px; text-align: center; }
body.page-status .page-hero .section-label {
  display: inline-flex; align-items: center; gap: 8px;
  font: 500 12px/1 var(--font-mono); color: var(--accent);
  letter-spacing: 0.08em; text-transform: uppercase;
  margin-bottom: 20px;
}
body.page-status .page-hero .section-label::before { content: ''; width: 20px; height: 1px; background: var(--accent); }
body.page-status .page-hero h1 {
  font: 700 clamp(36px, 5vw, 56px)/1.1 var(--font-display);
  letter-spacing: -0.025em;
  margin-bottom: 16px;
}
body.page-status .page-hero p { max-width: 560px; margin: 0 auto; font-size: 17px; color: var(--muted); }

body.page-status .status-banner {
  position: relative; z-index: 1;
  margin: 0 auto 48px; max-width: 800px;
  display: flex; align-items: center; justify-content: center; gap: 16px;
  padding: 24px 32px;
  background: var(--success-dim);
  border: 1px solid oklch(74% 0.15 160 / 0.35);
  border-radius: var(--radius-card);
}
body.page-status .status-banner .pulse {
  width: 12px; height: 12px;
  background: var(--success);
  border-radius: 50%;
  flex-shrink: 0;
  animation: statusPulseDot 2s ease-in-out infinite;
  box-shadow: 0 0 16px var(--success);
}
@keyframes statusPulseDot { 0%, 100% { opacity: 1; transform: scale(1); } 50% { opacity: 0.5; transform: scale(0.85); } }
body.page-status .status-banner .status-text { font: 600 17px/1 var(--font-body); }
body.page-status .status-banner .status-sub { font-size: 14px; color: var(--muted); line-height: 1.6; }

body.page-status .status-grid {
  position: relative; z-index: 1;
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px;
  margin-bottom: 48px;
}
body.page-status .service-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  padding: 28px;
  position: relative;
  overflow: hidden;
}
body.page-status .service-card::before {
  content: '';
  position: absolute; top: 0; left: 0;
  width: 3px; height: 100%;
  background: var(--accent);
  opacity: 0.2;
  box-shadow: 0 0 12px var(--accent);
}
body.page-status .service-card-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 20px; gap: 12px; }
body.page-status .service-name { font: 600 17px/1 var(--font-body); letter-spacing: -0.01em; }
body.page-status .service-badge {
  display: inline-flex; align-items: center; gap: 6px;
  font: 500 12px/1 var(--font-body); letter-spacing: 0.02em;
  padding: 5px 12px; border-radius: var(--radius-ctrl);
  flex-shrink: 0;
}
body.page-status .service-badge.operational { background: var(--success-dim); color: var(--success); }
body.page-status .service-badge.degraded { background: var(--warn-dim); color: var(--warn); }
body.page-status .service-badge .dot { width: 6px; height: 6px; border-radius: 50%; display: inline-block; box-shadow: 0 0 8px currentColor; }
body.page-status .service-badge.operational .dot { background: var(--success); }

body.page-status .metric-row { display: flex; gap: 16px; margin-bottom: 16px; }
body.page-status .metric-item { flex: 1; min-width: 0; }
body.page-status .metric-label {
  font: 500 12px/1 var(--font-body); color: var(--muted);
  letter-spacing: 0.02em;
  margin-bottom: 6px;
}
body.page-status .metric-value {
  font: 600 22px/1 var(--font-mono);
  letter-spacing: -0.02em;
  font-variant-numeric: tabular-nums;
}
body.page-status .metric-value.low { color: var(--success); text-shadow: 0 0 12px var(--success-dim); }
body.page-status .metric-value.mid { color: var(--warn); }
body.page-status .metric-value.high { color: var(--danger); }
body.page-status .metric-unit { font: 400 12px/1 var(--font-mono); color: var(--muted); letter-spacing: 0.02em; }

body.page-status .sparkline { width: 100%; height: 40px; margin-top: 12px; }
body.page-status .sparkline svg { width: 100%; height: 100%; }
body.page-status .uptime-label {
  display: flex; justify-content: space-between;
  font: 400 12px/1 var(--font-body); color: var(--muted);
  letter-spacing: 0.02em; margin-top: 4px;
}

body.page-status .metrics-section { position: relative; z-index: 1; margin-bottom: 48px; }
body.page-status .section-title { font: 600 22px/1.3 var(--font-body); letter-spacing: -0.01em; margin-bottom: 24px; }
body.page-status .metrics-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
body.page-status .metrics-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  padding: 24px;
  text-align: center;
}
body.page-status .metrics-card .icon {
  width: 44px; height: 44px;
  margin: 0 auto 14px;
  background: var(--accent-dim);
  border: 1px solid var(--accent-dim);
  border-radius: var(--radius-ctrl);
  display: grid; place-items: center;
  color: var(--accent);
}
body.page-status .metrics-card .icon svg { width: 22px; height: 22px; stroke: currentColor; fill: none; stroke-width: 2; }
body.page-status .metrics-card .big-num {
  font: 700 clamp(28px, 3vw, 36px)/1 var(--font-mono);
  letter-spacing: -0.03em;
  font-variant-numeric: tabular-nums;
  margin-bottom: 4px;
  color: var(--accent);
  text-shadow: 0 0 20px var(--accent-glow);
}
body.page-status .metrics-card .big-label { font: 500 13px/1 var(--font-body); color: var(--muted); letter-spacing: 0.02em; }
body.page-status .metrics-card .trend {
  display: inline-flex; align-items: center; gap: 4px;
  margin-top: 8px;
  font: 500 11px/1 var(--font-mono); letter-spacing: 0.02em;
}
body.page-status .metrics-card .trend.up { color: var(--success); }
body.page-status .metrics-card .trend.down { color: var(--danger); }

body.page-status .double-section {
  position: relative; z-index: 1;
  display: grid; grid-template-columns: 1fr 1fr; gap: 20px;
  margin-bottom: 48px;
}
body.page-status .panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  padding: 28px;
}
body.page-status .panel-title {
  font: 600 17px/1.3 var(--font-body);
  letter-spacing: -0.01em;
  margin-bottom: 20px;
  display: flex; align-items: center; gap: 10px;
}
body.page-status .panel-title svg { width: 20px; height: 20px; stroke: var(--accent); fill: none; stroke-width: 2; flex-shrink: 0; }

body.page-status .timeline-item { display: flex; gap: 16px; padding: 12px 0; border-bottom: 1px solid var(--border); }
body.page-status .timeline-item:last-child { border-bottom: none; }
body.page-status .timeline-dot {
  width: 10px; height: 10px; border-radius: 50%;
  margin-top: 6px; flex-shrink: 0;
  box-shadow: 0 0 8px currentColor;
}
body.page-status .timeline-dot.resolved { background: var(--success); }
body.page-status .timeline-dot.monitoring { background: var(--warn); }
body.page-status .timeline-dot.investigating { background: var(--danger); }

body.page-status .clients-section { position: relative; z-index: 1; margin-bottom: 56px; }
body.page-status .clients-section .sub { color: var(--muted); font-size: 14px; line-height: 1.7; margin: 6px 0 20px; }
body.page-status .client-grid { display: flex; flex-wrap: wrap; gap: 14px; }
body.page-status .client-card {
  display: flex; align-items: center; gap: 12px;
  padding: 14px 18px; border: 1px solid var(--border); border-radius: var(--radius-card);
  background: var(--surface-2); transition: border-color .2s, transform .2s;
}
body.page-status .client-card:hover { border-color: var(--accent); transform: translateY(-2px); }
body.page-status .client-logo { width: 40px; height: 40px; flex-shrink: 0; display: flex; align-items: center; justify-content: center; }
body.page-status .client-logo img { width: 40px; height: 40px; object-fit: contain; border-radius: 8px; background: #fff; }
body.page-status .client-badge {
  width: 40px; height: 40px; border-radius: var(--radius-ctrl); flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, var(--accent), var(--accent-2)); color: #fff;
  font: 700 15px/1 var(--font-body); letter-spacing: 0.02em;
}
body.page-status .client-name { font: 500 14px/1.3 var(--font-body); }
body.page-status .timeline-body { flex: 1; min-width: 0; }
body.page-status .timeline-event { font: 500 14px/1.5 var(--font-body); margin-bottom: 4px; }
body.page-status .timeline-meta { font: 400 12px/1 var(--font-body); color: var(--muted); letter-spacing: 0.02em; }

body.page-status .maintenance-item { display: flex; gap: 14px; padding: 14px 0; border-bottom: 1px solid var(--border); }
body.page-status .maintenance-item:last-child { border-bottom: none; }
body.page-status .maintenance-date {
  font: 500 13px/1.4 var(--font-mono); color: var(--accent);
  letter-spacing: 0.02em; min-width: 48px; flex-shrink: 0;
}
body.page-status .maintenance-desc { flex: 1; min-width: 0; }
body.page-status .maintenance-desc .title { font: 500 15px/1.5 var(--font-body); margin-bottom: 4px; }
body.page-status .maintenance-desc .desc { font: 400 14px/1.6 var(--font-body); color: var(--muted); }

body.page-status .status-history { position: relative; z-index: 1; margin-bottom: 80px; }
body.page-status .history-bar { display: flex; gap: 3px; height: 28px; }
body.page-status .history-bar .day {
  flex: 1; border-radius: 3px;
  transition: background 0.2s;
  position: relative; cursor: pointer;
  min-width: 0;
}
body.page-status .history-bar .day.up { background: oklch(72% 0.15 160 / 0.5); }
body.page-status .history-bar .day.degraded { background: oklch(80% 0.16 80 / 0.5); }
body.page-status .history-bar .day.down { background: oklch(70% 0.18 25 / 0.5); }
body.page-status .history-bar .day:hover { opacity: 0.8; }
body.page-status .history-bar .day:hover::after {
  content: attr(data-tip);
  position: absolute; bottom: 100%; left: 50%; transform: translateX(-50%);
  background: var(--surface); border: 1px solid var(--border);
  padding: 4px 8px; border-radius: 4px;
  font: 400 10px/1 var(--font-mono); white-space: nowrap;
  z-index: 10; pointer-events: none;
}
body.page-status .history-legend {
  display: flex; align-items: center; gap: 20px;
  margin-top: 14px;
  font: 400 13px/1.6 var(--font-body); color: var(--muted);
  flex-wrap: wrap;
}
body.page-status .history-legend .swatch {
  width: 10px; height: 10px; border-radius: 3px;
  display: inline-block; margin-right: 6px;
}
body.page-status .history-legend .swatch.up { background: oklch(72% 0.15 160 / 0.55); }
body.page-status .history-legend .swatch.degraded { background: oklch(80% 0.16 80 / 0.55); }
body.page-status .history-legend .swatch.down { background: oklch(70% 0.18 25 / 0.55); }

body.page-status .footer {
  position: relative; z-index: 1;
  border-top: 1px solid var(--border);
  padding: 40px 0;
  text-align: center;
}
body.page-status .footer p { font-size: 14px; color: var(--muted); letter-spacing: 0.02em; line-height: 1.7; }
body.page-status .footer .uptime-stat {
  font: 500 15px/1 var(--font-mono); color: var(--fg);
  letter-spacing: -0.01em; margin-bottom: 8px;
}

/* ==========================================================================
   13. 内容管理页（cms.html）
   ========================================================================== */
body.page-cms { font-size: 15px; }
body.page-cms .stats-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px;
  margin-bottom: 48px; position: relative; z-index: 1;
}
body.page-cms .stat-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 20px 24px;
  position: relative;
  overflow: hidden;
}
body.page-cms .stat-card::before {
  content: '';
  position: absolute; top: 0; left: 0;
  width: 3px; height: 100%;
  background: var(--accent);
  opacity: 0.2;
  box-shadow: 0 0 12px var(--accent);
}
body.page-cms .stat-card .stat-value {
  font: 700 28px/1 var(--font-display);
  letter-spacing: -0.02em;
  color: var(--accent);
  text-shadow: 0 0 20px var(--accent-glow);
  margin-bottom: 4px;
}
body.page-cms .stat-card .stat-label { font: 450 13px/1 var(--font-body); color: var(--muted); letter-spacing: 0.02em; }
body.page-cms .stat-card .stat-icon {
  position: absolute; top: 16px; right: 16px;
  width: 36px; height: 36px;
  border-radius: 4px;
  display: grid; place-items: center;
  opacity: 0.15;
}
body.page-cms .stat-card .stat-icon svg { width: 20px; height: 20px; stroke: var(--accent); fill: none; stroke-width: 1.8; }

body.page-cms .page-hero .section-label {
  display: inline-flex; align-items: center; gap: 8px;
  font: 500 12px/1 var(--font-mono); color: var(--accent);
  letter-spacing: 0.1em; text-transform: uppercase;
  margin-bottom: 16px;
  background: var(--accent-dim);
  padding: 6px 14px;
  border-radius: 4px;
}
body.page-cms .page-hero .section-label::before { display: none; }
body.page-cms .page-hero h1 {
  font: 700 clamp(32px, 5vw, 52px)/1.1 var(--font-display);
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}
body.page-cms .page-hero p { font-size: 17px; color: var(--muted); max-width: 560px; }

body.page-cms .content-table { position: relative; z-index: 1; margin-bottom: 48px; }
body.page-cms .content-table .table-header {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 20px; gap: 16px; flex-wrap: wrap;
}
body.page-cms .content-table .table-header h2 { font: 600 20px/1 var(--font-display); letter-spacing: -0.01em; }
body.page-cms .filter-bar { display: flex; align-items: center; gap: 12px; }
body.page-cms .filter-bar select {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--fg);
  padding: 8px 32px 8px 12px;
  font: 450 13px/1 var(--font-body);
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%23a0a0a0' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 10px center;
  cursor: pointer;
  transition: border-color 0.2s;
}
body.page-cms .filter-bar select:focus { border-color: var(--accent); outline: none; box-shadow: 0 0 12px var(--accent-glow); }
body.page-cms .filter-bar .search-input {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--fg);
  padding: 8px 12px 8px 36px;
  font: 450 13px/1 var(--font-body);
  width: 220px;
  transition: border-color 0.2s;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%23a0a0a0' stroke-width='2'%3E%3Ccircle cx='11' cy='11' r='8'/%3E%3Cpath d='M21 21l-4.35-4.35'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: left 12px center;
}
body.page-cms .filter-bar .search-input:focus { border-color: var(--accent); outline: none; box-shadow: 0 0 12px var(--accent-glow); }
body.page-cms .filter-bar .search-input::placeholder { color: var(--muted); }

body.page-cms .table-wrap {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 4px;
  overflow: hidden;
}
body.page-cms table { width: 100%; border-collapse: collapse; }
body.page-cms thead th {
  text-align: left; padding: 14px 20px;
  font: 500 11px/1 var(--font-mono); color: var(--muted);
  letter-spacing: 0.08em; text-transform: uppercase;
  border-bottom: 1px solid var(--border);
  background: var(--surface-2);
  white-space: nowrap;
}
body.page-cms tbody tr { border-bottom: 1px solid var(--border); transition: background 0.15s; }
body.page-cms tbody tr:last-child { border-bottom: none; }
body.page-cms tbody tr:hover { background: var(--surface-2); }
body.page-cms tbody td { padding: 14px 20px; font: 450 14px/1.4 var(--font-body); }
body.page-cms tbody td .page-title { font-weight: 510; color: var(--fg); }
body.page-cms tbody td .page-path {
  display: block;
  font: 400 11px/1 var(--font-mono); color: var(--muted);
  letter-spacing: 0.02em; margin-top: 4px;
}
body.page-cms tbody td .cell-mono { font: 400 13px/1 var(--font-mono); color: var(--muted); letter-spacing: 0.02em; }

body.page-cms .status-badge {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 4px 12px; border-radius: 4px;
  font: 500 12px/1 var(--font-body); letter-spacing: 0.02em;
  white-space: nowrap;
}
body.page-cms .status-badge::before { content: ''; width: 6px; height: 6px; border-radius: 50%; box-shadow: 0 0 8px currentColor; }
body.page-cms .status-badge.published { background: var(--success-dim); color: var(--success); }
body.page-cms .status-badge.published::before { background: var(--success); }
body.page-cms .status-badge.draft { background: var(--warn-dim); color: var(--warn); }
body.page-cms .status-badge.draft::before { background: var(--warn); }
body.page-cms .status-badge.scheduled { background: var(--accent-dim); color: var(--accent); }
body.page-cms .status-badge.scheduled::before { background: var(--accent); }

body.page-cms .actions-cell { display: flex; align-items: center; gap: 6px; flex-wrap: wrap; }
body.page-cms .action-btn {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 6px 12px; border-radius: 4px;
  font: 500 12px/1 var(--font-body); letter-spacing: 0.02em;
  border: 1px solid var(--border);
  background: transparent; color: var(--muted);
  cursor: pointer; transition: all 0.15s;
}
body.page-cms .action-btn:hover {
  border-color: var(--accent); color: var(--accent);
  background: var(--accent-dim);
  box-shadow: 0 0 12px var(--accent-glow);
}
body.page-cms .action-btn svg { width: 14px; height: 14px; stroke: currentColor; fill: none; stroke-width: 2; }
body.page-cms .action-btn.danger:hover { border-color: var(--danger); color: var(--danger); background: var(--danger-dim); }
body.page-cms .action-btn:active { transform: scale(0.97); }
body.page-cms .action-btn:disabled { opacity: 0.45; cursor: not-allowed; pointer-events: none; }

body.page-cms .quick-actions { position: relative; z-index: 1; margin-bottom: 60px; }
body.page-cms .quick-actions h2 { font: 600 20px/1 var(--font-display); letter-spacing: -0.01em; margin-bottom: 20px; }
body.page-cms .qa-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
body.page-cms .qa-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 24px;
  cursor: pointer;
  transition: all 0.2s;
  position: relative;
  overflow: hidden;
}
body.page-cms .qa-card::before {
  content: '';
  position: absolute; top: 0; left: 0;
  width: 3px; height: 100%;
  background: var(--accent);
  opacity: 0;
  transition: opacity 0.2s;
  box-shadow: 0 0 12px var(--accent);
}
body.page-cms .qa-card:hover {
  border-color: var(--accent-dim);
  transform: translateY(-2px);
  box-shadow: 0 0 20px var(--accent-glow);
}
body.page-cms .qa-card:hover::before { opacity: 0.3; }
body.page-cms .qa-card:focus-visible { border-color: var(--accent); }
body.page-cms .qa-card .qa-icon {
  width: 40px; height: 40px;
  border-radius: 4px;
  background: var(--accent-dim);
  display: grid; place-items: center;
  margin-bottom: 14px;
}
body.page-cms .qa-card .qa-icon svg { width: 20px; height: 20px; stroke: var(--accent); fill: none; stroke-width: 1.8; }
body.page-cms .qa-card h3 { font: 510 15px/1.3 var(--font-body); margin-bottom: 6px; }
body.page-cms .qa-card p { font: 400 13px/1.5 var(--font-body); color: var(--muted); }

body.page-cms .empty-state {
  display: none;
  flex-direction: column; align-items: center; justify-content: center;
  padding: 60px 20px; text-align: center;
}
body.page-cms .empty-state svg { width: 48px; height: 48px; stroke: var(--muted); opacity: 0.25; margin-bottom: 16px; }
body.page-cms .empty-state p { font: 510 16px/1 var(--font-body); color: var(--fg); margin-bottom: 6px; }
body.page-cms .empty-state span { font: 400 13px/1 var(--font-body); color: var(--muted); }

body.page-cms .toast {
  position: fixed; bottom: 44px; left: 50%;
  transform: translateX(-50%);
  background: rgba(8, 10, 18, 0.94);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 12px 20px;
  font: 450 14px/1 var(--font-body); color: var(--fg);
  z-index: 9999;
  opacity: 0;
  transition: opacity 0.3s, transform 0.3s;
  pointer-events: none;
  max-width: calc(100vw - 48px);
}
body.page-cms .toast.visible { opacity: 1; }
body.page-cms .toast.error { border-color: var(--danger); }

body.page-cms .page-footer {
  position: relative; z-index: 1;
  border-top: 1px solid var(--border);
  padding: 32px 0;
  text-align: center;
  font: 400 13px/1 var(--font-body); color: var(--muted);
  letter-spacing: 0.02em;
}

/* ==========================================================================
   14. 联系页（contact.html）
   ========================================================================== */
body.page-contact .trust-strip {
  position: relative; z-index: 1;
  padding: 40px 0 20px;
  border-top: 1px solid var(--border);
  margin-top: 20px;
  overflow: hidden;
}
body.page-contact .trust-strip .section-label {
  display: inline-flex; align-items: center; gap: 8px;
  font: 400 12px/1 var(--font-mono);
  letter-spacing: 0.06em;
  color: var(--muted);
  margin-bottom: 24px;
}
body.page-contact .trust-strip .section-label::before { content: '//'; font-weight: 700; }
body.page-contact .logo-marquee {
  display: flex; gap: 56px;
  animation: marquee 28s linear infinite;
  width: max-content;
}
body.page-contact .logo-marquee:hover { animation-play-state: paused; }
@keyframes marquee {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}
body.page-contact .logo-item {
  display: flex; align-items: center; gap: 10px;
  font: 500 14px/1 var(--font-body);
  letter-spacing: 0.02em;
  color: var(--muted);
  opacity: 0.6;
  transition: opacity 0.3s, color 0.3s;
  white-space: nowrap;
}
body.page-contact .logo-item:hover { opacity: 1; color: var(--fg); }
body.page-contact .logo-item .logo-dot {
  width: 36px; height: 36px;
  border-radius: 8px;
  border: 1px solid var(--border);
  display: grid; place-items: center;
  font: 700 12px/1 var(--font-mono);
  color: var(--accent);
  transition: border-color 0.3s, box-shadow 0.3s;
}
body.page-contact .logo-item:hover .logo-dot {
  border-color: var(--accent-dim);
  box-shadow: 0 0 12px var(--accent-glow);
}
/* 客户图标为图片时（后管「客户展示」上传），与文字徽标同高 */
body.page-contact .logo-item .logo-img {
  width: auto; height: 36px; max-width: 132px;
  object-fit: contain;
  border-radius: 6px;
  filter: grayscale(0.2);
  transition: filter 0.3s, opacity 0.3s;
}
body.page-contact .logo-item:hover .logo-img { filter: none; }

body.page-contact .contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  padding: 60px 0 100px;
  align-items: start;
  position: relative;
  z-index: 1;
}

@keyframes formFieldIn {
  from { opacity: 0; transform: translateY(16px); }
  to { opacity: 1; transform: translateY(0); }
}
body.page-contact .form-group { margin-bottom: 24px; position: relative; opacity: 0; animation: formFieldIn 0.5s ease forwards; }
body.page-contact .form-group:nth-child(1) { animation-delay: 0.05s; }
body.page-contact .form-group:nth-child(2) { animation-delay: 0.12s; }
body.page-contact .form-group:nth-child(3) { animation-delay: 0.19s; }
body.page-contact .form-group:nth-child(4) { animation-delay: 0.26s; }
body.page-contact .form-group:nth-child(5) { animation-delay: 0.33s; }
body.page-contact .form-group label {
  display: block;
  font: 500 14px/1 var(--font-body);
  letter-spacing: 0.02em;
  color: var(--fg);
  margin-bottom: 8px;
  transition: color 0.25s ease;
}
body.page-contact .form-group:focus-within label { color: var(--accent); text-shadow: 0 0 12px var(--accent-glow); }
body.page-contact .form-group input,
body.page-contact .form-group textarea,
body.page-contact .form-group select {
  width: 100%;
  padding: 14px 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius-ctrl);
  background: var(--surface);
  color: var(--fg);
  font-size: 16px;
  transition: border-color 0.3s ease, box-shadow 0.3s ease, transform 0.25s cubic-bezier(0.34, 1.56, 0.64, 1);
  outline: none;
}
body.page-contact .form-group input:focus,
body.page-contact .form-group textarea:focus,
body.page-contact .form-group select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-dim), 0 0 30px var(--accent-glow);
  transform: translateY(-2px);
}
body.page-contact .form-group input:not(:placeholder-shown):not(:focus):valid,
body.page-contact .form-group textarea:not(:placeholder-shown):not(:focus):valid {
  border-color: var(--border);
}
body.page-contact .form-group textarea { min-height: 140px; resize: vertical; }
body.page-contact .form-group input::placeholder,
body.page-contact .form-group textarea::placeholder {
  color: var(--muted); opacity: 0.5;
  transition: opacity 0.25s ease;
}
body.page-contact .form-group input:focus::placeholder,
body.page-contact .form-group textarea:focus::placeholder { opacity: 0.2; }

body.page-contact .form-group.has-error input,
body.page-contact .form-group.has-error textarea,
body.page-contact .form-group.has-error select {
  border-color: var(--danger);
  box-shadow: 0 0 0 3px var(--danger-dim);
  animation: shake 0.35s cubic-bezier(0.36, 0.07, 0.19, 0.97);
}
body.page-contact .form-group .error-msg {
  display: none;
  font-size: 13px;
  color: var(--danger);
  margin-top: 6px;
  letter-spacing: 0.01em;
}
body.page-contact .form-group.has-error .error-msg { display: flex; align-items: center; gap: 5px; }
body.page-contact .form-group.has-error .error-msg::before { content: '⚠'; font-size: 13px; flex-shrink: 0; }
body.page-contact .submit-error { display: none; font-size: 13px; color: var(--danger); margin-top: 10px; letter-spacing: 0.01em; }
body.page-contact .submit-error:not(:empty) { display: flex; align-items: center; gap: 5px; }
body.page-contact .submit-error:not(:empty)::before { content: '⚠'; font-size: 13px; flex-shrink: 0; }

body.page-contact .form-group.valid input,
body.page-contact .form-group.valid textarea,
body.page-contact .form-group.valid select {
  border-color: var(--success);
  box-shadow: 0 0 0 3px var(--success-dim);
}
body.page-contact .form-group .valid-icon {
  display: none;
  position: absolute; right: 14px; bottom: 16px;
  width: 18px; height: 18px;
  color: var(--success);
  pointer-events: none;
  animation: popIn 0.25s cubic-bezier(0.34, 1.56, 0.64, 1);
}
body.page-contact .form-group.valid .valid-icon { display: block; }
body.page-contact .form-group textarea ~ .valid-icon { bottom: auto; top: 50px; }
@keyframes popIn {
  0% { opacity: 0; transform: scale(0.5); }
  100% { opacity: 1; transform: scale(1); }
}

body.page-contact .char-count {
  position: absolute; right: 14px; bottom: 10px;
  font: 400 12px/1 var(--font-mono);
  letter-spacing: 0.02em;
  color: var(--muted);
  opacity: 0.6;
  pointer-events: none;
  transition: opacity 0.2s;
}
body.page-contact .form-group:focus-within .char-count { opacity: 0.8; }
body.page-contact .char-count.warn { color: oklch(72% 0.15 80); opacity: 0.8; }
body.page-contact .char-count.over { color: var(--danger); opacity: 1; }

@keyframes shake {
  0%, 100% { transform: translateX(0); }
  20% { transform: translateX(-4px); }
  40% { transform: translateX(4px); }
  60% { transform: translateX(-3px); }
  80% { transform: translateX(3px); }
}

body.page-contact .btn {
  gap: 10px;
  padding: 14px 36px;
  transition: all 0.25s cubic-bezier(0.34, 1.56, 0.64, 1);
}
body.page-contact .btn-primary:hover { transform: translateY(-1px); }
body.page-contact .btn.loading { pointer-events: none; }
body.page-contact .btn .spinner {
  display: none;
  width: 16px; height: 16px;
  border: 2px solid var(--bg);
  border-top-color: transparent;
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}
body.page-contact .btn.loading .spinner { display: block; }
body.page-contact .btn.loading .btn-text { opacity: 0.6; }
@keyframes spin { to { transform: rotate(360deg); } }

body.page-contact .form-wrapper {
  transition: opacity 0.35s ease, transform 0.35s ease;
  min-height: 480px;
}
body.page-contact .form-wrapper.hidden {
  opacity: 0;
  transform: translateY(16px) scale(0.98);
  pointer-events: none;
  position: absolute;
}

body.page-contact .info-cards { display: flex; flex-direction: column; gap: 20px; }
body.page-contact .info-card {
  display: flex; gap: 20px;
  padding: 28px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  position: relative;
  overflow: hidden;
  transition: border-color 0.3s, box-shadow 0.3s;
  opacity: 0;
  animation: formFieldIn 0.5s ease forwards;
}
body.page-contact .info-card:nth-child(1) { animation-delay: 0.15s; }
body.page-contact .info-card:nth-child(2) { animation-delay: 0.25s; }
body.page-contact .info-card:nth-child(3) { animation-delay: 0.35s; }
body.page-contact .info-card:nth-child(4) { animation-delay: 0.45s; }
body.page-contact .info-card:hover {
  border-color: var(--accent-dim);
  box-shadow: 0 0 20px var(--accent-glow);
}
body.page-contact .info-card::before {
  content: '';
  position: absolute; top: 0; left: 0;
  width: 3px; height: 100%;
  background: var(--accent);
  opacity: 0.2;
  box-shadow: 0 0 12px var(--accent);
}
body.page-contact .info-card .ic-icon {
  width: 48px; height: 48px;
  flex-shrink: 0;
  border-radius: var(--radius-ctrl);
  border: 1px solid var(--border);
  background: var(--accent-dim);
  display: grid; place-items: center;
  color: var(--accent);
  transition: border-color 0.3s, color 0.3s, background 0.3s, box-shadow 0.3s;
}
body.page-contact .info-card:hover .ic-icon {
  border-color: var(--accent);
  background: var(--accent-dim);
  color: var(--accent);
  box-shadow: 0 0 16px var(--accent-glow);
}
body.page-contact .info-card .ic-icon svg { width: 24px; height: 24px; }
body.page-contact .info-card h4 { font: 500 17px/1 var(--font-body); letter-spacing: 0.01em; margin-bottom: 6px; }
body.page-contact .info-card p { font-size: 15px; color: var(--muted); line-height: 1.7; }

body.page-contact .success-state {
  display: none;
  padding: 56px 40px;
  text-align: center;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  animation: fadeIn 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
}
body.page-contact .success-state.visible { display: block; }
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(16px) scale(0.96); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}
body.page-contact .success-state .check-icon {
  width: 56px; height: 56px;
  margin: 0 auto 20px;
  border-radius: 50%;
  border: 2px solid var(--accent);
  display: grid; place-items: center;
  color: var(--accent);
  box-shadow: 0 0 20px var(--accent-glow);
  animation: popIn 0.5s 0.2s cubic-bezier(0.34, 1.56, 0.64, 1) both;
}
body.page-contact .success-state h3 { font: 600 22px/1.2 var(--font-display); letter-spacing: -0.01em; margin-bottom: 8px; }
body.page-contact .success-state p {
  color: var(--muted);
  font-size: 15px;
  max-width: 400px;
  margin: 0 auto;
}

/* ==========================================================================
   15. 响应式（沿用原型的语义断点，并覆盖 360–430 移动端）
   ========================================================================== */
@media (max-width: 900px) {
  body.page-home .hero .container { grid-template-columns: 1fr; gap: 48px; }
  body.page-home .hero h1 { font-size: 36px; }
  body.page-home .about-grid { grid-template-columns: 1fr; gap: 40px; }
  body.page-home .featured-grid { grid-template-columns: 1fr 1fr; }
  footer .container { grid-template-columns: 1fr 1fr; }

  body.page-products .product-card { grid-template-columns: 1fr; gap: 32px; }
  body.page-products .product-card:nth-child(even) .product-visual { order: 0; }

  body.page-status .status-grid { grid-template-columns: 1fr; }
  body.page-status .metrics-grid { grid-template-columns: repeat(2, 1fr); }
  body.page-status .double-section { grid-template-columns: 1fr; }

  body.page-cms .stats-grid { grid-template-columns: repeat(2, 1fr); }
  body.page-cms .qa-grid { grid-template-columns: 1fr; }
  body.page-cms .filter-bar .search-input { width: 160px; }

  body.page-contact .contact-grid { grid-template-columns: 1fr; gap: 48px; }
}
@media (max-width: 640px) {
  .nav-links { gap: 24px; }
  .nav-links a { font-size: 12px; }
  body.page-home .featured-grid { grid-template-columns: 1fr; }
  body.page-home .hero { min-height: auto; padding: 100px 0 60px; }
  body.page-home .hero-stats { grid-template-columns: 1fr 1fr; }
  footer .container { grid-template-columns: 1fr; }

  body.page-status .page-hero { padding: 120px 0 48px; }
  body.page-status .metrics-grid { grid-template-columns: 1fr 1fr; }
  body.page-status .service-card { padding: 20px; }
  body.page-status .metric-row { flex-wrap: wrap; }
  body.page-status .metric-item { min-width: 80px; }
  body.page-status .status-banner { flex-direction: column; text-align: center; padding: 20px; }
  body.page-status .history-bar { height: 20px; }

  body.page-cms nav .container { height: 60px; }
  body.page-cms .nav-links { gap: 16px; }
  body.page-cms .nav-links a { font-size: 12px; }
  body.page-cms .logo { font-size: 18px; }
  body.page-cms .logo-mark { width: 28px; height: 28px; font-size: 10px; }
  body.page-cms .logo-sub { font-size: 10px; }
  body.page-cms .stats-grid { grid-template-columns: 1fr; }
  body.page-cms .page-hero { padding: 110px 0 40px; }
  body.page-cms .filter-bar { flex-direction: column; align-items: stretch; }
  body.page-cms .filter-bar .search-input { width: 100%; }
  body.page-cms .table-wrap { overflow-x: auto; }
  body.page-cms .actions-cell { flex-wrap: wrap; }

  body.page-contact .page-hero { padding: 120px 0 40px; }
  body.page-contact .contact-grid { padding: 40px 0 60px; }
  body.page-contact .info-card { padding: 20px; }
  body.page-contact .info-card .ic-icon { width: 40px; height: 40px; }
  body.page-contact .info-card .ic-icon svg { width: 18px; height: 18px; }
  body.page-contact .logo-marquee { gap: 32px; animation-duration: 20s; }
  body.page-contact .logo-item { font-size: 11px; }
  body.page-contact .logo-item .logo-dot { width: 28px; height: 28px; font-size: 10px; }
  footer { padding: 48px 0 24px; }
}

/* ========== 16. 页面级氛围参数（保留各页面原型的细微差异） ========== */
body.page-home #neuralCanvas { opacity: 0.35; }
body.page-home #warpCanvas { opacity: 0.06; }
body.page-contact #neuralCanvas { opacity: 0.4; }

/* ========== 17.  reduced-motion ========== */
@media (prefers-reduced-motion: reduce) {
  .cursor-glow, .noise-overlay, .scanlines { display: none; }
  #neuralCanvas, #dataStreamCanvas, #warpCanvas, #neonTrailCanvas { display: none; }
  .data-matrix { display: none; }
  .ai-status-bar { display: none; }
  [data-reveal] { opacity: 1; transform: none; }
  .tilt-card { transform: none !important; }
  .float-y, .float-data { animation: none; }
  .page-enter { animation: none; }
  body::before { animation: none; }
  .glitch::before, .glitch::after { display: none; }
  .holo-card::before, .holo-flicker { animation: none; }
  .pulse-ring { display: none; }
  .scanner-divider::after { animation: none; opacity: 0.15; }
  nav::after { animation: none; opacity: 0.1; }
  .logo-mark { animation: none; }
  .grid-3d-inner { animation: none; }
  .data-pipeline .pipeline-flow .flow-particle { animation: none; display: none; }
  .inference-visual .inference-bar .fill { animation: none; width: 50%; }
  .scroll-progress { display: none; }
  .shortcut-hint { display: none; }
  .logo-marquee { animation: none; }
  /* 关闭动效时隐藏为无缝循环而复制的后半段 */
  .logo-marquee .is-clone { display: none; }
  .form-group, .info-card { opacity: 1; animation: none; }
}

/* ============ 行业新闻（服务状态页，由后管爬虫自动填充） ============ */
.industry-news-wrap { margin-top: 30px; }
.industry-news-wrap h3 { font-size: 20px; margin: 0 0 4px; }
.industry-news-wrap .sub { color: var(--muted); font-size: 14px; margin: 0 0 18px; line-height: 1.7; }
#industry-news { display: grid; gap: 12px; }
#industry-news .news-item {
  border: 1px solid var(--border); border-radius: var(--radius-card); padding: 16px 18px;
  background: var(--surface-2); transition: border-color .15s;
}
#industry-news .news-item:hover { border-color: var(--accent); }
#industry-news .news-item a { color: var(--accent); font-weight: 600; text-decoration: none; font-size: 16px; line-height: 1.5; }
#industry-news .news-item a:hover { text-decoration: underline; }
#industry-news .news-meta { color: var(--muted); font-size: 12px; margin: 8px 0 6px; font-family: var(--font-mono, monospace); }
#industry-news .news-summary { color: var(--muted-strong); font-size: 14px; line-height: 1.75; }

/* ========== Logo 图片：小屏收缩 ==========
   后管 logo_size 决定桌面尺寸；窄屏下等比缩小，避免与导航菜单争空间。
   图片 height 由 site-bind.js 内联写入，故此处用 !important 覆盖。 */
@media (max-width: 640px) {
  .logo-mark.has-logo img { height: 38px !important; }
}
@media (max-width: 380px) {
  .logo-mark.has-logo img { height: 32px !important; }
}