/* =========================================================
   长安易租官网 — 设计系统 v2
   风格：企业信任系（亮底系统蓝）+ 产品瓷砖 + AI 暗色子线
   契约：docs/设计契约-风格重构-20261022.md
   ========================================================= */

:root {
  /* 背景层次 */
  --bg: #ffffff;
  --bg-soft: #f4f6fa;
  --bg-panel: #ffffff;
  --panel: #ffffff;
  --panel-hover: #f7f9fc;
  --surface: #f4f6fa;
  --primary-soft: #eaf1fb;
  --tile-dark: #17233b;
  --line: #e3e8f0;
  --line-strong: #cbd5e4;

  /* 文本 */
  --text: #17233b;
  --text-dim: #5a6579;
  --muted: #8a93a3;

  /* 主色 */
  --primary: #1f5ac2;
  --primary-deep: #16418f;
  --accent: #1f5ac2;
  --success: #0e7b4f;
  --warn: #b45309;
  --danger: #c0392b;
  /* --grad / --grad-soft 保留变量名兼容旧规则，值改为纯色/浅底（去渐变化） */
  --grad: #1f5ac2;
  --grad-soft: #eaf1fb;

  /* 尺寸 */
  --radius-s: 8px;
  --radius: 16px;
  --radius-l: 16px;
  --max: 1200px;
  --nav-h: 72px;

  --shadow: 0 8px 24px rgba(23, 35, 59, 0.08);
  --glow: 0 0 0 1px rgba(31, 90, 194, 0.25), 0 8px 24px rgba(23, 35, 59, 0.08);
  --ease: cubic-bezier(0.22, 0.68, 0.24, 1);

}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", -apple-system,
    BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  font-size: 15px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

::selection { background: rgba(31, 90, 194, 0.18); }

/* 键盘焦点可见 */
:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
  border-radius: 6px;
}
/* 鼠标点击时不显示焦点环，键盘导航才显示 */
:focus:not(:focus-visible) { outline: none; }

/* 跳转到主内容（键盘/读屏用户） */
.skip-link {
  position: absolute;
  left: 16px;
  top: -60px;
  z-index: 200;
  padding: 10px 18px;
  border-radius: 0 0 8px 8px;
  background: var(--primary);
  color: #ffffff;
  font-weight: 700;
  font-size: 14px;
  transition: top 0.25s var(--ease);
}
.skip-link:focus { top: 0; }

/* 滚动条 */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: #f0f2f6; }
::-webkit-scrollbar-thumb { background: #c9d2e0; border-radius: 8px; border: 2px solid #f0f2f6; }
::-webkit-scrollbar-thumb:hover { background: #aab6c8; }

.container { width: 100%; max-width: var(--max); margin: 0 auto; padding: 0 24px; }

/* 固定顶部（公告条 + 导航） */
.topbar { position: fixed; top: 0; left: 0; right: 0; z-index: 100; }
.topbar .nav { position: relative; }

/* ===================== 通用文字 ===================== */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--accent);
  font-weight: 600;
}
.eyebrow::before {
  content: "";
  width: 22px; height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent));
}

h1, h2, h3, h4 { font-weight: 700; line-height: 1.25; letter-spacing: 0.01em; }
/* 标题避免最后一行只剩单字（孤字）：Chromium/Safari 支持，其它浏览器自动忽略 */
h1, h2, h3 { text-wrap: pretty; }
h1 { font-size: clamp(34px, 5.2vw, 60px); }
h2 { font-size: clamp(26px, 3.4vw, 40px); }
h3 { font-size: 20px; }
p { color: var(--text-dim); }

.section { padding: 96px 0; position: relative; }
.section-sm { padding: 64px 0; }

.section-head { max-width: 720px; margin-bottom: 48px; }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.section-head h2 { margin: 14px 0 14px; }
.section-head p { font-size: 16px; }
/* 标题单行显示：桌面端不换行，≤640px 恢复换行防溢出 */
.section-head h2.keep-line { white-space: nowrap; }
@media (max-width: 640px) { .section-head h2.keep-line { white-space: normal; } }
/* 单行主标题：宽屏下强制不折行并整体居中（列宽仍为 720，段落折行不受影响）；
   视口过窄时自动退回正常换行，避免出现横向溢出 */
@media (min-width: 640px) {
  .section-head h2.oneline {
    white-space: nowrap;
    width: max-content;
    max-width: none;
    position: relative;
    left: 50%;
    transform: translateX(-50%);
  }
}

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

/* ===================== 按钮 ===================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 46px;
  padding: 0 24px;
  border-radius: var(--radius-s);
  font-size: 15px;
  font-weight: 600;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background 0.2s var(--ease), color 0.2s var(--ease), border-color 0.2s var(--ease);
  white-space: nowrap;
}
.btn:active { transform: translateY(1px); }
.btn-primary {
  background: var(--primary);
  color: #ffffff;
}
.btn-primary:hover { background: var(--primary-deep); }
.btn-ghost {
  background: transparent;
  border-color: var(--line-strong);
  color: var(--text);
}
.btn-ghost:hover { border-color: var(--primary); color: var(--primary); }
.btn-sm { height: 38px; padding: 0 18px; font-size: 14px; }
.btn-block { width: 100%; }

.link-arrow { display: inline-flex; align-items: center; gap: 6px; color: var(--accent); font-weight: 600; font-size: 14.5px; }
.link-arrow svg { transition: transform 0.25s var(--ease); }
.link-arrow:hover svg { transform: translateX(4px); }

/* ===================== 标签 ===================== */
.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  height: 26px;
  padding: 0 10px;
  border-radius: 6px;
  font-size: 12.5px;
  font-weight: 600;
  background: var(--bg-soft);
  border: 1px solid var(--line);
  color: var(--text-dim);
}
.tag-blue { background: var(--primary-soft); border-color: #c7d8f4; color: var(--primary); }
.tag-cyan { background: #e6f6f3; border-color: #c2e9e1; color: #0e7b6b; }
.tag-green { background: #e8f6ee; border-color: #c3e6d2; color: var(--success); }
.tag-orange { background: #fbf1e2; border-color: #f0dcbb; color: var(--warn); }

/* ===================== 备用底纹（原网格/光斑装饰已移除） ===================== */

/* ===================== 顶部导航 ===================== */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--nav-h);
  z-index: 100;
  display: flex;
  align-items: center;
  transition: all 0.3s var(--ease);
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}
.nav.scrolled {
  background: rgba(255, 255, 255, 0.98);
  box-shadow: 0 4px 16px rgba(23, 35, 59, 0.06);
}
.nav .container { display: flex; align-items: center; justify-content: space-between; gap: 24px; }

.logo { display: flex; align-items: center; gap: 11px; font-size: 19px; font-weight: 800; letter-spacing: 0.02em; white-space: nowrap; flex: none; color: var(--text); }
.logo > span:last-child { display: flex; flex-direction: column; line-height: 1.18; }
.logo-mark {
  width: 34px; height: 34px;
  border-radius: 8px;
  background: var(--primary);
  display: grid; place-items: center;
  flex: none;
}
.logo-sub { font-size: 11px; font-weight: 500; color: var(--muted); letter-spacing: 0.14em; margin-top: -2px; }

/* 窄屏：收起英文副标并收窄 logo，否则 logo + 询价按钮 + 汉堡会超出屏幕（不到 390px 就被挤出可视区） */
@media (max-width: 480px) {
  .logo { font-size: 17px; gap: 9px; }
  .logo-mark { width: 30px; height: 30px; }
  .logo-mark svg { width: 17px; height: 17px; }
  .logo-sub { display: none; }
  .nav-actions { gap: 8px; }
}

.nav-menu { display: flex; align-items: center; gap: 2px; flex-wrap: nowrap; }
.nav-menu a {
  position: relative;
  white-space: nowrap;
  padding: 8px 11px;
  font-size: 14.5px;
  color: var(--text-dim);
  border-radius: 8px;
  transition: all 0.22s var(--ease);
}
.nav-menu a:hover { color: var(--primary); background: var(--bg-soft); }
.nav-menu a.active { color: var(--primary); font-weight: 600; }
.nav-menu a.active::after {
  content: "";
  position: absolute;
  left: 14px; right: 14px; bottom: 2px;
  height: 2px;
  border-radius: 2px;
  background: var(--primary);
}

/* 导航二级菜单（「解决方案」四项场景）：桌面端鼠标悬浮弹出，≤1024px 收进汉堡菜单平铺 */
/* 撑满导航高度：① 面板 top:100% 正好从导航底展开，不会压住导航下边框；
   ② 命中区覆盖整条导航高度，鼠标下移时不会在途中丢失 hover */
.nav-item { position: relative; display: flex; align-items: center; height: var(--nav-h); }
.nav-parent { display: inline-flex; align-items: center; }
.nav-caret {
  display: inline-block;
  width: 6px; height: 6px;
  margin-left: 5px;
  border-right: 1.5px solid currentColor;
  border-bottom: 1.5px solid currentColor;
  transform: translateY(-2px) rotate(45deg);
  transition: transform 0.22s var(--ease);
}
.nav-item:hover .nav-caret,
.nav-item:focus-within .nav-caret { transform: translateY(1px) rotate(225deg); }

.nav-sub {
  position: absolute;
  top: 100%;
  left: 50%;
  z-index: 120;
  padding-top: 8px;
  transform: translate(-50%, -6px);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.2s var(--ease), transform 0.2s var(--ease), visibility 0.2s;
}
.nav-item:hover .nav-sub,
.nav-item:focus-within .nav-sub {
  opacity: 1;
  visibility: visible;
  transform: translate(-50%, 0);
}
.nav-sub-inner {
  min-width: 232px;
  padding: 8px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--panel);
  box-shadow: 0 14px 34px rgba(23, 35, 59, 0.13);
}
/* 覆盖 .nav-menu a 的内联导航样式 */
.nav-menu .nav-sub a {
  display: block;
  padding: 9px 12px;
  border-radius: 8px;
  line-height: 1.35;
}
.nav-menu .nav-sub a:hover { background: var(--bg-soft); }
.nav-sub a b {
  display: block;
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
  white-space: nowrap;
}
.nav-menu .nav-sub a:hover b { color: var(--primary); }
.nav-sub a span {
  display: block;
  margin-top: 2px;
  font-size: 12px;
  color: var(--muted);
  white-space: nowrap;
}
.nav-actions { display: flex; align-items: center; gap: 12px; flex: none; }
.nav-phone { display: flex; align-items: center; gap: 8px; font-weight: 700; font-size: 15px; letter-spacing: 0.02em; white-space: nowrap; flex: none; }
.nav-phone svg { color: var(--accent); }
/* 顺序要紧：本规则必须排在 .nav-phone 的 display 之后才能生效 */
@media (max-width: 1240px) { .nav-phone { display: none; } }

.burger { display: none; width: 42px; height: 42px; border-radius: 8px; border: 1px solid var(--line-strong); background: #ffffff; cursor: pointer; }
.burger span { display: block; width: 18px; height: 1.6px; background: var(--text); margin: 3.5px auto; border-radius: 2px; transition: all .25s var(--ease); }
.burger.on span:nth-child(1) { transform: translateY(5px) rotate(45deg); }
.burger.on span:nth-child(2) { opacity: 0; }
.burger.on span:nth-child(3) { transform: translateY(-5px) rotate(-45deg); }

/* ===================== 首屏 Hero ===================== */
.hero {
  position: relative;
  min-height: 100vh;
  min-height: 100dvh; /* iOS 地址栏收缩时不跳动 */
  display: flex;
  align-items: center;
  padding: calc(var(--nav-h) + 56px) 0 72px;
  overflow: hidden;
  background: linear-gradient(180deg, #fbfcfe 0%, #ffffff 100%);
}

/* 左栏留给标题：保证「免押租赁高性能笔记本」10 个字一行放得下，不出现孤字折行 */
.hero-inner { position: relative; z-index: 2; display: grid; grid-template-columns: minmax(0, 1.14fr) minmax(0, 0.86fr); gap: 48px; align-items: center; }

.hero-badge {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 6px 14px 6px 8px;
  border-radius: 999px;
  background: var(--primary-soft);
  border: 1px solid #c7d8f4;
  font-size: 13px; color: var(--primary);
  margin-bottom: 24px;
}
.hero-badge b { color: var(--primary); font-weight: 700; }
.dot-live { width: 7px; height: 7px; border-radius: 50%; background: var(--success); box-shadow: 0 0 0 4px rgba(14, 123, 79, 0.14); animation: pulse 2s infinite; }
@keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: .45; } }

.hero h1 { margin-bottom: 20px; font-size: clamp(30px, 4.6vw, 58px); }
.hero h1 .hl { display: block; white-space: nowrap; }
.hero h1 em { font-style: normal; position: relative; }
.hero h1 em::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: 4px; height: 10px;
  background: rgba(31, 90, 194, 0.14);
  z-index: -1; border-radius: 4px;
}
.hero-desc { font-size: 17px; max-width: 560px; margin-bottom: 32px; }
.hero-cta { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 36px; }
.hero-points { display: flex; gap: 28px; flex-wrap: wrap; }
.hero-point { display: flex; align-items: center; gap: 9px; font-size: 14px; color: var(--text-dim); }
.hero-point svg { color: var(--primary); flex: none; }

/* 首屏右侧：热门机型实时月租表格卡（B 端数据感锚点，行由 main.js 从机型库渲染） */
.mtable-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px 24px;
}
.mtable-card h3 { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; font-size: 15px; font-weight: 600; margin-bottom: 4px; }
.mtable-card h3 a { font-size: 12.5px; color: var(--primary); font-weight: 600; white-space: nowrap; }
.mtable-card h3 a:hover { text-decoration: underline; }
.mrow {
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr) auto;
  gap: 10px;
  align-items: center;
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
  font-size: 13.5px;
}
.mrow:last-of-type { border-bottom: 0; }
.mrow .th { font-size: 11.5px; color: var(--muted); border-bottom: 1px solid var(--line); padding-bottom: 8px; }
.mrow b { font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.mrow .spec { color: var(--text-dim); font-size: 12.5px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.mrow .price { font-weight: 700; color: var(--primary); text-align: right; font-variant-numeric: tabular-nums; white-space: nowrap; }
.mtable-note { font-size: 11.5px; color: var(--muted); margin-top: 12px; }

/* ===================== 数据条 ===================== */
.stats {
  position: relative;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}
.stat { background: var(--bg-soft); padding: 26px 24px; text-align: center; }
.stat b { display: block; font-size: 34px; font-weight: 800; letter-spacing: -0.02em; background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
/* 非数字指标（如「本地响应」）：中文短语，用纯色并适度缩号，避免渐变文字在小字号下发虚 */
.stat b.stat-text { color: var(--primary); -webkit-text-fill-color: var(--primary); background: none; font-size: 24px; letter-spacing: 0; line-height: 1.35; padding-top: 6px; }
.stat span { font-size: 13.5px; color: var(--muted); }

/* ===================== 卡片 ===================== */
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; }

.card {
  position: relative;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px;
  transition: all 0.32s var(--ease);
  overflow: hidden;
}
.card::after {
  content: "";
  position: absolute; inset: 0;
  background: radial-gradient(420px circle at var(--mx, 50%) var(--my, 0%), rgba(31, 90, 194, 0.06), transparent 62%);
  opacity: 0; transition: opacity 0.3s var(--ease);
  pointer-events: none;
}
.card:hover { transform: translateY(-4px); border-color: #c7d8f4; background: var(--panel-hover); }
.card:hover::after { opacity: 1; }

.card-ic {
  width: 48px; height: 48px;
  border-radius: 13px;
  display: grid; place-items: center;
  background: var(--grad-soft);
  border: 1px solid rgba(47, 107, 255, 0.24);
  margin-bottom: 18px;
  color: var(--accent);
}
.card h3 { margin-bottom: 10px; font-size: 18px; }
.card p { font-size: 14.5px; }
.card ul { margin-top: 14px; display: grid; gap: 8px; }
.card ul li { position: relative; padding-left: 18px; font-size: 13.5px; color: var(--text-dim); }
.card ul li::before { content: ""; position: absolute; left: 0; top: 9px; width: 6px; height: 6px; border-radius: 50%; background: var(--accent); opacity: .8; }

/* ===================== 机型卡 ===================== */
.chip {
  padding: 7px 15px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--bg-soft);
  font-size: 13.5px;
  color: var(--text-dim);
  cursor: pointer;
  transition: all 0.22s var(--ease);
}
.chip:hover { border-color: var(--line-strong); color: var(--text); }
.chip.on { background: var(--primary-soft); border-color: rgba(31, 90, 194, 0.45); color: var(--primary); font-weight: 600; }

.product-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 22px; }

.pcard {
  display: flex; flex-direction: column;
  background: var(--bg-soft);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  transition: all 0.32s var(--ease);
}
.pcard:hover { transform: translateY(-5px); border-color: rgba(31, 90, 194, 0.4); box-shadow: 0 16px 40px rgba(23, 35, 59, 0.1); }
.pcard-media {
  position: relative;
  height: 190px;
  display: grid; place-items: center;
  background: linear-gradient(180deg, #f2f5fa 0%, #e9eef5 100%);
  border-bottom: 1px solid var(--line);
}
/* 黑底官方图专用深色媒体位：JS 检测到 blend 图时挂上，保住 screen 混合效果 */
.pcard-media.dark-media {
  background:
    radial-gradient(420px 220px at 50% 20%, rgba(31, 90, 194, 0.25), transparent 70%),
    linear-gradient(180deg, #101a2e 0%, #0a1120 100%);
}
.pcard-media svg { transition: transform 0.4s var(--ease); }
.pcard:hover .pcard-media svg { transform: translateY(-6px) scale(1.03); }
.pcard-tags { position: absolute; top: 12px; left: 12px; display: flex; gap: 6px; flex-wrap: wrap; }
.pcard-stock { position: absolute; top: 12px; right: 12px; font-size: 12px; color: var(--muted); }

.pcard-body { padding: 20px 20px 22px; display: flex; flex-direction: column; flex: 1; }
.pcard-brand { font-size: 12px; letter-spacing: 0.14em; color: var(--muted); text-transform: uppercase; }
.pcard-name { font-size: 17px; font-weight: 700; margin: 4px 0 14px; }
.pcard-name a { color: inherit; transition: color 0.2s var(--ease); }
.pcard-name a:hover { color: var(--accent); }
/* 卡片主图整块可点，进机型详情页 */
a.pcard-media { color: inherit; }

.spec-list { display: grid; grid-template-columns: 1fr 1fr; gap: 8px 12px; margin-bottom: 16px; }
.spec-list div { display: flex; align-items: center; gap: 7px; font-size: 13px; color: var(--text-dim); }
.spec-list div.full { grid-column: 1 / -1; color: var(--text); }
.spec-list svg { color: var(--accent); opacity: .85; flex: none; }

.empty {
  grid-column: 1 / -1;
  text-align: center;
  padding: 60px 20px;
  border: 1px dashed var(--line-strong);
  border-radius: var(--radius);
  color: var(--muted);
  font-size: 14.5px;
}

.pcard-price {
  display: flex; align-items: flex-end; justify-content: space-between;
  gap: 12px; padding: 14px 0 16px;
  border-top: 1px dashed var(--line);
  margin-top: auto;
}
.price-main b { font-size: 26px; font-weight: 800; color: var(--text); letter-spacing: -0.01em; font-variant-numeric: tabular-nums; }
.price-main span { font-size: 13px; color: var(--muted); }
.price-main small { display: block; font-size: 12.5px; color: var(--text-dim); }
.pcard-actions { display: flex; gap: 10px; }
.pcard-actions .btn { flex: 1; }

/* 卡片里的品牌官方产品图（与 .pcard-media 的 190px 固定高配合，contain 保证不变形） */
.pcard-photo {
  width: 100%; height: 100%;
  padding: 12px 16px;
  object-fit: contain;
  transition: transform 0.4s var(--ease);
}
/* 纯黑底官方图：screen 混合让黑底消失，直接融进卡片底色 */
.pcard-photo.blend { mix-blend-mode: screen; }
.pcard:hover .pcard-photo { transform: translateY(-6px) scale(1.03); }

/* ===================== 品类导航（products.html 顶部） ===================== */
.cat-tabs { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 14px; }
.cat-tab {
  display: block; text-align: left; width: 100%;
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
  cursor: pointer;
  transition: all 0.24s var(--ease);
}
.cat-tab b { display: block; font-size: 16px; font-weight: 700; }
.cat-tab span { display: block; margin-top: 4px; font-size: 12.5px; color: var(--muted); }
.cat-tab:hover { border-color: var(--line-strong); background: var(--panel-hover); }
.cat-tab.on { background: var(--primary-soft); border-color: rgba(31, 90, 194, 0.5); }
.cat-tab.on span { color: var(--primary); }
.cat-tab-link { border-style: dashed; }
.cat-tab-link span { color: var(--accent); }
.cat-note { margin-top: 16px; font-size: 14px; color: var(--text-dim); }

/* ===================== 运营位：本周精选 ===================== */
.ops-band { margin-top: 34px; border-top: 1px dashed var(--line); padding-top: 28px; }
.ops-head { display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; margin-bottom: 18px; }
.ops-head h3 { font-size: 19px; }
.ops-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 18px; }
.ops-card {
  display: flex; align-items: center; gap: 14px;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--bg-soft);
  transition: all 0.28s var(--ease);
}
.ops-card:hover { transform: translateY(-4px); border-color: rgba(31, 90, 194, 0.4); }
.ops-media {
  flex: none; width: 92px; height: 74px;
  display: grid; place-items: center;
  border-radius: var(--radius-s);
  overflow: hidden;
  background: linear-gradient(180deg, #f2f5fa, #e9eef5);
}
.ops-media.dark-media {
  background:
    radial-gradient(120px 70px at 50% 40%, rgba(31, 90, 194, 0.3), transparent 70%),
    #0a1120;
}
.ops-media svg { width: 100%; height: auto; }
.ops-photo { max-width: 100%; max-height: 100%; object-fit: contain; }
.ops-photo.blend { mix-blend-mode: screen; }
.ops-body { min-width: 0; display: flex; flex-direction: column; gap: 3px; }
.ops-tag { font-size: 11.5px; letter-spacing: 0.04em; color: var(--accent); }
.ops-name { font-size: 14.5px; line-height: 1.4; }
.ops-spec { font-size: 12px; color: var(--muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.ops-price { font-size: 12.5px; color: var(--text-dim); margin-top: 2px; }
.ops-price b { font-size: 18px; font-weight: 800; color: var(--text); letter-spacing: -0.01em; }

/* ===================== 左栏筛选 + 结果条（products.html） ===================== */
.catalog-layout { display: grid; grid-template-columns: 266px minmax(0, 1fr); gap: 26px; align-items: start; }

.filters-side {
  position: sticky; top: calc(var(--nav-h) + 20px);
  /* 维度多、栏体比视口高：超出部分在栏内滚动，否则底部条件永远够不到 */
  max-height: calc(100vh - var(--nav-h) - 40px);
  overflow-y: auto;
  background: var(--bg-soft);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 20px;
}
.filters-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 12px; }
.filters-head h3 { font-size: 16px; }
.filters-clear { background: none; border: 0; padding: 0; font-size: 13px; color: var(--accent); cursor: pointer; }
.filters-side .filters { display: block; margin: 0; }

.fgroup { border-top: 1px dashed var(--line); padding: 14px 0; }
.fgroup:first-child { border-top: 0; padding-top: 0; }
.fgroup-head { display: flex; align-items: baseline; justify-content: space-between; margin-bottom: 10px; font-size: 13.5px; font-weight: 600; }
.fgroup-head i { font-style: normal; font-size: 11.5px; font-weight: 400; color: var(--muted); }
.fgroup-body { display: flex; flex-wrap: wrap; gap: 8px; }
.fchip {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 5px 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--bg-soft);
  font-size: 12.5px;
  color: var(--text-dim);
  cursor: pointer;
  transition: all 0.2s var(--ease);
}
.fchip:hover { border-color: var(--line-strong); color: var(--text); }
.fchip.on { background: var(--primary-soft); border-color: rgba(31, 90, 194, 0.45); color: var(--primary); font-weight: 600; }
.fcnt { font-style: normal; font-size: 11px; color: var(--muted); }
.fchip.on .fcnt { color: var(--primary); opacity: 0.75; }
.filters-done { display: none; margin-top: 18px; }

.catalog-main { min-width: 0; }
.result-bar {
  display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap;
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
  margin-bottom: 14px;
}
.result-bar p { font-size: 14px; }
.result-sub { font-size: 13px; color: var(--muted); }
.sort-tabs { display: flex; gap: 8px; flex-wrap: wrap; }
.result-links { display: flex; gap: 20px; align-items: center; flex-wrap: wrap; margin-bottom: 18px; }
.filters-open { display: none; margin-bottom: 16px; }
.filters-mask { display: none; }

@media (max-width: 1080px) {
  .ops-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .cat-tabs { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 1000px) {
  .catalog-layout { grid-template-columns: 1fr; }
  .filters-open { display: block; }
  .filters-done { display: block; }
  /* 窄屏把筛选栏改成抽屉：贴左固定、默认移出视口 */
  .filters-side {
    position: fixed; top: 0; bottom: 0; left: 0;
    width: min(86vw, 340px);
    max-height: none;
    z-index: 160;
    border-radius: 0 var(--radius) var(--radius) 0;
    overflow-y: auto;
    padding: 22px 18px;
    transform: translateX(-102%);
    transition: transform 0.28s var(--ease);
  }
  .filters-side.open { transform: none; }
  .filters-mask {
    display: block; position: fixed; inset: 0;
    background: rgba(3, 6, 12, 0.72);
    z-index: 150;
    opacity: 0; pointer-events: none;
    transition: opacity 0.25s var(--ease);
  }
  .filters-mask.on { opacity: 1; pointer-events: auto; }
}
@media (max-width: 620px) {
  .ops-grid { grid-template-columns: minmax(0, 1fr); }
  .cat-tabs { grid-template-columns: minmax(0, 1fr); }
  .result-bar { flex-direction: column; align-items: flex-start; }
}

/* ===================== 解决方案 Tabs ===================== */
.tabs { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; margin-bottom: 36px; }
.tab {
  padding: 10px 22px; border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--bg-soft);
  font-size: 14.5px; font-weight: 600; color: var(--text-dim);
  cursor: pointer; transition: all 0.25s var(--ease);
}
.tab:hover { color: var(--text); }
.tab.on { background: var(--primary); color: #ffffff; border-color: transparent; }

.panel { display: none; }
.panel.on { display: block; animation: fadeUp 0.45s var(--ease); }
@keyframes fadeUp { from { opacity: 0; transform: translateY(14px); } to { opacity: 1; transform: none; } }

.sol-panel {
  display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: center;
  background: var(--panel); border: 1px solid var(--line);
  border-radius: var(--radius-l); padding: 40px;
}
.sol-panel h3 { font-size: 26px; margin-bottom: 12px; }
.sol-panel > p { margin-bottom: 22px; }
.sol-feats { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-bottom: 26px; }
.sol-feat { background: var(--bg-soft); border: 1px solid var(--line); border-radius: 12px; padding: 14px 16px; }
.sol-feat b { display: block; font-size: 14.5px; margin-bottom: 2px; font-variant-numeric: tabular-nums; }
.sol-feat span { font-size: 13px; color: var(--muted); }
.sol-visual { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.sol-mini { background: var(--bg-soft); border: 1px solid var(--line); border-radius: 14px; padding: 20px; text-align: center; }
.sol-mini b { display: block; font-size: 22px; font-weight: 800; background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.sol-mini b.stat-text { background: none; -webkit-text-fill-color: var(--primary); color: var(--primary); font-size: 18px; letter-spacing: 0; }
.sol-mini span { font-size: 13px; color: var(--muted); }

/* ===================== 流程 ===================== */
.steps { position: relative; display: grid; grid-template-columns: repeat(6, 1fr); gap: 16px; margin-top: 8px; }
/* 步数不是 6 的流程：用类名取代行内 grid-template-columns，保证断点能正确降列 */
.steps.cols-4 { grid-template-columns: repeat(4, 1fr); }
.steps.cols-5 { grid-template-columns: repeat(5, 1fr); }
.steps::before {
  content: ""; position: absolute; top: 26px; left: 6%; right: 6%; height: 1px;
  background: linear-gradient(90deg, transparent, rgba(31, 90, 194, 0.45), rgba(31, 90, 194, 0.45), transparent);
}
.step { position: relative; text-align: center; }
.step-num {
  width: 52px; height: 52px; margin: 0 auto 16px;
  border-radius: 50%;
  display: grid; place-items: center;
  font-size: 17px; font-weight: 800;
  background: var(--primary-soft);
  border: 1px solid rgba(31, 90, 194, 0.45);
  color: var(--primary);
  font-variant-numeric: tabular-nums;
}
.step b { display: block; font-size: 15px; margin-bottom: 5px; }
.step span { font-size: 13px; color: var(--muted); }

/* ===================== 品牌理念（设备 + 服务） ===================== */
#philosophy { scroll-margin-top: 110px; }
.philo-card { padding: 34px; }
.philo-head { display: flex; align-items: center; gap: 12px; margin-bottom: 16px; }
.philo-head h3 { margin: 0; font-size: 19px; }
.philo-idx {
  flex: none;
  width: 30px; height: 30px; border-radius: 8px;
  display: grid; place-items: center;
  font-size: 13px; font-weight: 800;
  background: var(--primary-soft);
  border: 1px solid rgba(31, 90, 194, 0.28);
  color: var(--primary);
}
.philo-sub { display: block; font-size: 13.5px; font-weight: 600; color: var(--accent); margin-bottom: 14px; }

/* ===================== 案例 / 评价 ===================== */
.quote-card {
  position: relative;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 30px;
  display: flex; flex-direction: column; gap: 18px;
  transition: all 0.3s var(--ease);
}
.quote-card:hover { transform: translateY(-4px); border-color: var(--line-strong); }
.quote-card p { font-size: 14.5px; color: var(--text); flex: 1; }
.quote-who { display: flex; align-items: flex-start; gap: 12px; }
.avatar {
  width: 42px; height: 42px; border-radius: 50%; flex: none;
  display: grid; place-items: center; font-weight: 700; font-size: 15px;
  background: var(--primary-soft); border: 1px solid rgba(31, 90, 194, 0.3); color: var(--primary);
}
/* 姓名/职务块：min-width:0 允许收缩（否则会把标签挤出换行），
   内部再分两行——「姓名 + 标签」同行，职务独占一行拿满宽度。 */
.quote-who .who-text { min-width: 0; flex: 1; display: flex; flex-direction: column; gap: 3px; }
.quote-who .who-top { display: flex; align-items: center; gap: 10px; }
.quote-who .who-top b { font-size: 14.5px; flex: none; }
/* 卡内标签：靠右、不收缩、不换行 */
.quote-who .tag { flex: none; margin-left: auto; white-space: nowrap; }
.quote-who .who-role { font-size: 12.5px; color: var(--muted); display: block; line-height: 1.5; }
.quote-mark { position: absolute; top: 18px; right: 22px; font-size: 46px; color: rgba(47, 107, 255, 0.16); font-weight: 800; line-height: 1; }

.logo-wall { display: flex; flex-wrap: wrap; gap: 14px; justify-content: center; margin-top: 40px; }
.logo-wall span {
  padding: 10px 20px; border-radius: 10px;
  border: 1px solid var(--line); background: var(--bg-soft);
  font-size: 14px; color: var(--text-dim); letter-spacing: 0.04em;
}

/* ===================== FAQ ===================== */
.faq { display: grid; gap: 12px; max-width: 900px; margin: 0 auto; }
.faq-item {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 14px;
  overflow: hidden;
  transition: border-color 0.25s var(--ease);
}
.faq-item.open { border-color: rgba(31, 90, 194, 0.4); background: rgba(31, 90, 194, 0.04); }
.faq-q {
  width: 100%; display: flex; align-items: center; justify-content: space-between; gap: 18px;
  padding: 20px 24px; background: none; border: 0; cursor: pointer; text-align: left;
  font-size: 15.5px; font-weight: 600;
}
.faq-q i { flex: none; width: 22px; height: 22px; border-radius: 50%; border: 1px solid var(--line-strong); position: relative; transition: all .3s var(--ease); }
.faq-q i::before, .faq-q i::after {
  content: ""; position: absolute; background: var(--accent); border-radius: 2px;
  left: 50%; top: 50%; transform: translate(-50%, -50%);
}
.faq-q i::before { width: 10px; height: 1.6px; }
.faq-q i::after { width: 1.6px; height: 10px; transition: transform .3s var(--ease); }
.faq-item.open .faq-q i::after { transform: translate(-50%, -50%) rotate(90deg); opacity: 0; }
.faq-a { max-height: 0; overflow: hidden; transition: max-height 0.4s var(--ease); }
.faq-a-inner { padding: 0 24px 22px; font-size: 14.5px; color: var(--text-dim); }

/* ===================== CTA ===================== */
.cta-band {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-l);
  border: 1px solid #d7e3f7;
  background: var(--primary-soft);
  padding: 56px 48px;
  display: flex; align-items: center; justify-content: space-between; gap: 36px;
}
.cta-band h2 { font-size: clamp(24px, 3vw, 34px); margin-bottom: 10px; }
.cta-band p { max-width: 520px; }
.cta-actions { display: flex; gap: 12px; flex-wrap: wrap; }

/* ===================== 表单 ===================== */
.form-wrap {
  display: grid; grid-template-columns: 1fr 0.9fr; gap: 40px; align-items: start;
}
.form-card {
  background: var(--bg-soft);
  border: 1px solid var(--line);
  border-radius: var(--radius-l);
  padding: 36px;
}
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.field { display: grid; gap: 8px; }
.field.full { grid-column: 1 / -1; }
.field label { font-size: 13.5px; color: var(--text-dim); font-weight: 600; }
.field label i { color: #ff7a7a; font-style: normal; margin-left: 3px; }
.field input, .field select, .field textarea {
  width: 100%;
  background: #ffffff;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 12px 14px;
  color: var(--text);
  transition: all 0.22s var(--ease);
  outline: none;
}
.field textarea { resize: vertical; min-height: 96px; }
.field input::placeholder, .field textarea::placeholder { color: #9aa4b5; }
.field input:focus, .field select:focus, .field textarea:focus {
  border-color: rgba(31, 90, 194, 0.6);
  background: #ffffff;
  box-shadow: 0 0 0 3px rgba(31, 90, 194, 0.12);
}
.field select { appearance: none; -webkit-appearance: none; cursor: pointer;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%237b88a1' stroke-width='1.6' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right 14px center; padding-right: 36px;
}
.field select option { background: #ffffff; }
.field.err input, .field.err select, .field.err textarea { border-color: #ff6b6b; box-shadow: 0 0 0 3px rgba(255, 107, 107, 0.12); }
.field .msg { font-size: 12.5px; color: #ff8d8d; display: none; }
.field.err .msg { display: block; }

.check-line { display: flex; align-items: flex-start; gap: 9px; font-size: 13px; color: var(--muted); grid-column: 1 / -1; }
.check-line input { width: 16px; height: 16px; margin-top: 3px; accent-color: var(--primary); flex: none; }
.check-line a { color: var(--accent); }

.form-note { margin-top: 14px; font-size: 12.5px; color: var(--muted); text-align: center; }

.form-side { display: grid; gap: 16px; }
.contact-item {
  display: flex; gap: 14px; align-items: flex-start;
  background: var(--panel); border: 1px solid var(--line);
  border-radius: 14px; padding: 20px;
  transition: all .3s var(--ease);
}
.contact-item:hover { border-color: var(--line-strong); background: var(--panel-hover); }
.contact-item .ic { width: 42px; height: 42px; border-radius: 11px; display: grid; place-items: center; background: var(--primary-soft); border: 1px solid rgba(31,90,194,.24); color: var(--primary); flex: none; }
.contact-item b { display: block; font-size: 13.5px; color: var(--muted); font-weight: 500; margin-bottom: 2px; }
.contact-item strong { font-size: 16px; }
.contact-item p { font-size: 13px; margin-top: 2px; }

/* 表单成功态 */
.form-success {
  display: none; text-align: center; padding: 26px 10px 8px;
}
.form-success.on { display: block; animation: fadeUp .4s var(--ease); }
.form-success .ok {
  width: 62px; height: 62px; margin: 0 auto 18px; border-radius: 50%;
  display: grid; place-items: center;
  background: rgba(23, 209, 164, 0.14); border: 1px solid rgba(23, 209, 164, 0.4); color: var(--success);
}
.form-success h3 { margin-bottom: 8px; }
.form-success p { font-size: 14.5px; max-width: 380px; margin: 0 auto 18px; }

/* Toast */
.toast {
  position: fixed; left: 50%; bottom: 40px; transform: translate(-50%, 20px);
  background: #17233b; border: 1px solid rgba(255, 255, 255, 0.12);
  color: #ffffff; padding: 13px 22px; border-radius: 999px; font-size: 14px;
  box-shadow: 0 12px 32px rgba(23, 35, 59, 0.28); z-index: 200; opacity: 0; pointer-events: none;
  transition: all 0.3s var(--ease);
  display: flex; align-items: center; gap: 10px;
}
.toast.on { opacity: 1; transform: translate(-50%, 0); }
.toast .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--success); }

/* ===================== 政策对比表 ===================== */
.policy-table { width: 100%; border-collapse: collapse; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; background: var(--bg-soft); }
.policy-table th, .policy-table td { padding: 15px 18px; font-size: 14px; text-align: left; border-bottom: 1px solid var(--line); }
.policy-table thead th { background: var(--primary-soft); color: var(--primary); font-weight: 600; font-size: 14px; }
.policy-table tbody tr:last-child td { border-bottom: 0; }
.policy-table td:first-child { color: var(--muted); width: 140px; }
.policy-table .yes { color: var(--success); font-weight: 600; }
.table-scroll { overflow-x: auto; border-radius: var(--radius); }

/* ===================== 场景方案块 ===================== */
.scene {
  display: grid;
  grid-template-columns: 1fr 0.9fr;
  gap: 48px;
  align-items: center;
  padding: 52px 0;
  border-top: 1px solid var(--line);
  /* 导航二级菜单跳到 #enterprise 等锚点：留出「公告条 38 + 导航 72」的遮挡高度。
     多留的 26px 抵掉 .reveal 进场时 translateY(26px) 撤销造成的回弹 —— 浏览器在
     reveal 生效前就按 margin 定位，随后 translateY 归零会让目标整体上移 26px。 */
  scroll-margin-top: 144px;
}
.scene:first-of-type { border-top: 0; padding-top: 8px; }
.scene.reverse .scene-text { order: 2; }
.scene h2, .scene h3 { font-size: clamp(22px, 2.6vw, 30px); margin: 14px 0 12px; }
.scene-list { margin: 20px 0 26px; display: grid; gap: 11px; }
.scene-list li { position: relative; padding-left: 22px; font-size: 14.5px; color: var(--text-dim); }
.scene-list li::before { content: ""; position: absolute; left: 0; top: 9px; width: 8px; height: 8px; border-radius: 2px; background: var(--primary); }
.scene-visual { position: relative; background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius-l); padding: 32px; overflow: hidden; }
.scene-stats { position: relative; display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.scene-note { position: relative; margin-top: 18px; font-size: 13px; color: var(--muted); border-top: 1px dashed var(--line); padding-top: 14px; }
@media (max-width: 900px) {
  .scene { grid-template-columns: 1fr; gap: 28px; padding: 36px 0; }
  .scene.reverse .scene-text { order: 0; }
}

/* ===================== 机型展示（官方产品图 / 多角度视图） ===================== */
.dv-chips { display: flex; gap: 8px; overflow-x: auto; padding: 2px 2px 14px; margin-bottom: 16px; scrollbar-width: none; }
.dv-chips::-webkit-scrollbar { display: none; }
.dv-chips .chip { flex: none; }

.dv-wrap { display: grid; grid-template-columns: minmax(0, 1.6fr) minmax(280px, 0.72fr); gap: 22px; align-items: start; }

.dv-stage {
  position: relative;
  border-radius: var(--radius-l);
  border: 1px solid var(--line);
  overflow: hidden;
  background: linear-gradient(180deg, #f2f5fa, #e7ecf4);
  aspect-ratio: 16 / 11;
  min-height: 340px;
}
/* 黑底官方图：舞台切回深色，保住 screen 混合（deviceview.js 按当前图切换） */
.dv-stage.dark-stage {
  background:
    radial-gradient(700px 380px at 50% 28%, rgba(31, 90, 194, 0.25), transparent 68%),
    linear-gradient(180deg, #0d1524, #070c16);
}

/* 机型产品图。
   注意：<img> 是替换元素，left/top 配 width/height: auto 会退回图片固有尺寸、
   忽略定位，object-fit 随之失效——必须显式给 calc()。 */
.dv-photo {
  position: absolute;
  left: 6px;
  top: 6px;
  width: calc(100% - 12px);
  height: calc(100% - 12px);
  z-index: 2;
  object-fit: contain;
  display: none;
  pointer-events: none;
}
/* blend = screen 用于纯黑底官方图：黑底在 screen 混合下等于透明，产品自然融进舞台渐变，无需抠图 */
.dv-photo.on { display: block; }
.dv-photo.blend { mix-blend-mode: screen; }

/* 版权署名 */
.dv-credit {
  position: absolute;
  z-index: 3;
  left: 14px;
  top: 14px;
  font-size: 11.5px;
  color: var(--muted);
  letter-spacing: 0.02em;
  pointer-events: none;
}
.dv-credit:empty { display: none; }
.dv-stage.dark-stage .dv-credit { color: rgba(255, 255, 255, 0.65); }

.dv-badge { position: absolute; z-index: 3; top: 14px; right: 14px; }

.dv-angles { position: absolute; inset: 0; z-index: 3; display: none; grid-template-columns: 1fr 1fr; gap: 1px; background: var(--line); }
.dv-angles.on { display: grid; }
.dv-angle { position: relative; display: grid; place-items: center; padding: 14px 14px 28px; background: linear-gradient(180deg, #f2f5fa, #e9eef5); }
.dv-angle svg { width: 100%; height: auto; max-height: 100%; }
.dv-angle span { position: absolute; left: 14px; bottom: 8px; font-size: 11.5px; letter-spacing: 0.06em; color: var(--muted); }

.dv-info {
  position: sticky; top: calc(var(--nav-h) + 56px);
  background: var(--bg-soft); border: 1px solid var(--line);
  border-radius: var(--radius-l); padding: 26px;
}
.dv-info h3 { font-size: 21px; margin: 6px 0 10px; }
.dv-info > p { font-size: 14px; margin-bottom: 18px; }
.dv-price { display: flex; align-items: center; justify-content: space-between; gap: 14px; padding-top: 16px; border-top: 1px dashed var(--line); margin-top: 4px; }
.dv-price .price-main small { margin-top: 4px; }

@media (max-width: 1080px) {
  .dv-wrap { grid-template-columns: 1fr; }
  .dv-info { position: static; }
}
@media (max-width: 640px) {
  .dv-stage { aspect-ratio: 1 / 1; min-height: 300px; border-radius: var(--radius); }
  .dv-angle { padding: 10px 10px 24px; }
}

/* ===================== 页脚 ===================== */
.footer {
  border-top: 1px solid var(--line);
  background: var(--bg-soft);
  padding: 64px 0 28px;
  margin-top: 40px;
}
.footer-top { display: grid; grid-template-columns: 1.4fr repeat(3, 1fr); gap: 40px; padding-bottom: 40px; }
.footer-brand p { margin: 18px 0 20px; font-size: 14px; max-width: 320px; }
.footer-col h4, .footer-title { font-size: 14.5px; font-weight: 700; margin-bottom: 16px; }
.footer-col a, .footer-col li { display: block; font-size: 14px; color: var(--muted); padding: 5px 0; transition: color .2s var(--ease); }
.footer-col a:hover { color: var(--accent); }
.footer-bottom {
  border-top: 1px solid var(--line);
  padding-top: 22px;
  display: flex; align-items: center; justify-content: space-between; gap: 18px; flex-wrap: wrap;
  font-size: 13px; color: var(--muted);
}
.footer-bottom .links { display: flex; gap: 18px; }
/* 备案编号：陕西管局要求「底部中央位置标明备案编号并链接工信部备案系统」；
   颜色用 --text-dim 而非 --muted：亮底 #5A6579 / 暗底 #93A08B 均满足 WCAG AA 4.5:1，
   法定必须清晰展示的内容不降级。 */
.footer-icp {
  margin-top: 18px;
  padding-top: 16px;
  border-top: 1px dashed var(--line);
  text-align: center;
  font-size: 12.5px;
  color: var(--text-dim);
}
.footer-icp a { color: var(--text-dim); transition: color .2s var(--ease); }
.footer-icp a:hover { color: var(--accent); text-decoration: underline; }
/* 公安联网备案号与 ICP 号同行并列时的分隔符（v2.1.0 预留，编号为空时不渲染） */
.footer-icp-sep { color: var(--line); }

/* ===================== 页面头部（内页） ===================== */
.page-head {
  position: relative;
  padding: calc(var(--nav-h) + 72px) 0 56px;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
  background: linear-gradient(180deg, #f7f9fc, #ffffff);
}
.page-head .container { position: relative; z-index: 2; }
.page-head h1 { font-size: clamp(30px, 4vw, 46px); margin: 14px 0 14px; }
.page-head p { max-width: 640px; font-size: 16px; }
.crumb { font-size: 13px; color: var(--muted); }
.crumb a:hover { color: var(--accent); }

/* ===================== 滚动进场 ===================== */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity 0.7s var(--ease), transform 0.7s var(--ease); }
.reveal.in { opacity: 1; transform: none; }
.reveal-d1 { transition-delay: 0.08s; }
.reveal-d2 { transition-delay: 0.16s; }
.reveal-d3 { transition-delay: 0.24s; }

/* ---------- ⚠️ 无 JS 兜底（SEO 关键，勿删）----------
   .reveal 默认 opacity:0，靠 JS 的 IntersectionObserver 加 .in 才显示。
   若不执行 JS（百度基础抓取、脚本报错、用户禁用脚本），
   正文虽写进 HTML 却仍是「不可见」状态，抓取等同空白。
   兜底规则放在各页 <head> 的 <noscript><style> 内（13 页均已加），
   此处不重复定义，避免留下无引用的死规则。 */

/* ===================== 响应式 ===================== */
@media (max-width: 1080px) {
  .hero-inner { grid-template-columns: 1fr; gap: 40px; }
  .hero-visual { order: -1; max-width: 520px; margin: 0 auto; }
  .product-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(3, 1fr); gap: 28px 16px; }
  /* 4/5 步流程：列数不变，只放宽行距，避免文字被压成一行一个字 */
  .steps.cols-4 { grid-template-columns: repeat(4, 1fr); gap: 28px 16px; }
  .steps.cols-5 { grid-template-columns: repeat(5, 1fr); gap: 28px 16px; }
  .steps::before { display: none; }
  .footer-top { grid-template-columns: 1fr 1fr; gap: 32px; }
}

/* 导航项增至 8 项，1024px 以下提前折叠为汉堡菜单，避免横向挤压 */
@media (max-width: 1024px) {
  .nav-menu {
    position: fixed; top: var(--nav-h); left: 0; right: 0;
    flex-direction: column; align-items: stretch;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--line);
    padding: 14px 20px 20px;
    gap: 2px;
    transform: translateY(-12px);
    opacity: 0; pointer-events: none;
    transition: all 0.28s var(--ease);
  }
  .nav-menu.on { transform: none; opacity: 1; pointer-events: auto; }
  .nav-menu a { padding: 13px 12px; font-size: 15.5px; }
  .nav-menu a.active::after { display: none; }
  /* 二级菜单在抽屉内平铺展开：触屏没有 hover，不藏起来 */
  .nav-item { position: static; display: block; height: auto; }
  .nav-item > .nav-parent { display: flex; }
  .nav-sub {
    position: static;
    padding-top: 0;
    transform: none;
    opacity: 1;
    visibility: visible;
    transition: none;
  }
  /* 必须与基础规则同特异性并排在其后，否则 hover 态的 translate 会把平铺块左移 50% */
  .nav-item:hover .nav-sub,
  .nav-item:focus-within .nav-sub { transform: none; }
  .nav-sub-inner { min-width: 0; padding: 0 0 4px 12px; border: 0; background: none; box-shadow: none; }
  .nav-menu .nav-sub a { padding: 9px 12px 9px 14px; }
  .nav-menu .nav-sub a b { font-size: 14.5px; font-weight: 500; color: var(--text-dim); }
  .nav-menu .nav-sub a span { font-size: 12px; }
  .nav-sub a b,
  .nav-sub a span { white-space: normal; }
  .nav-caret { transform: translateY(-2px) rotate(45deg); }
  .burger { display: block; }
}

@media (max-width: 900px) {
  .grid-3, .grid-2, .sol-panel, .form-wrap { grid-template-columns: 1fr; }
  .sol-panel { padding: 28px; gap: 28px; }
  .stats { grid-template-columns: 1fr 1fr; }
  .section { padding: 68px 0; }
}

@media (max-width: 640px) {
  .container { padding: 0 18px; }
  .product-grid { grid-template-columns: minmax(0, 1fr); }
  .grid-4 { grid-template-columns: 1fr; }
  .steps, .steps.cols-4, .steps.cols-5 { grid-template-columns: 1fr 1fr; }
  .form-grid { grid-template-columns: 1fr; }
  .form-card { padding: 24px 20px; }
  .philo-card { padding: 26px 22px; }
  .cta-band { padding: 36px 24px; flex-direction: column; align-items: flex-start; }
  .hero { min-height: auto; padding-top: calc(var(--nav-h) + 40px); }
  .hero h1 { font-size: clamp(26px, 7.7vw, 34px); }
  .hero-points { gap: 16px; }
  .stat b { font-size: 27px; }
  .footer-top { grid-template-columns: 1fr; }
  .lead-bar { display: none; }
}

/* 顶部公告条：随 .topbar 固定在顶部，必须用【不透明】底色，滚动时内容才不会透上来 */
.lead-bar {
  background: var(--primary-deep);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  font-size: 13px;
  color: rgba(255, 255, 255, 0.82);
}
.lead-bar .container { display: flex; align-items: center; justify-content: space-between; gap: 16px; height: 38px; }
.lead-bar b { color: #ffffff; font-weight: 600; }
.lead-bar .right { display: flex; gap: 16px; align-items: center; }

/* ===================== A：价格与数据口径 ===================== */
.stats-note { margin-top: 14px; text-align: center; font-size: 13px; color: var(--muted); }

.tier-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.tier {
  position: relative; text-align: center;
  padding: 28px 20px 22px;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: var(--panel);
  transition: all 0.3s var(--ease);
}
.tier:hover { transform: translateY(-4px); border-color: var(--line-strong); }
.tier.on {
  border-color: rgba(31, 90, 194, 0.5);
  background: var(--primary-soft);
}
.tier-label {
  position: absolute; top: -11px; left: 50%; transform: translateX(-50%);
  height: 22px; padding: 0 12px; line-height: 22px; border-radius: 999px;
  font-size: 12px; font-weight: 600; background: var(--grad); color: #ffffff; white-space: nowrap;
}
.tier-term { display: block; font-size: 15px; color: var(--text-dim); margin-bottom: 10px; }
.tier-unit b { font-size: 32px; font-weight: 800; color: var(--text); letter-spacing: -0.02em; }
.tier-unit span { font-size: 13px; color: var(--muted); }
.tier-total { margin-top: 8px; font-size: 13.5px; color: var(--text-dim); }
.tier-total b { font-size: 15px; color: var(--accent); }
.tier small {
  display: block; margin-top: 12px; padding-top: 12px;
  border-top: 1px dashed var(--line); font-size: 12.5px; color: var(--muted);
}
.tier-note {
  margin-top: 26px; display: flex; align-items: center; justify-content: space-between;
  gap: 18px; flex-wrap: wrap; font-size: 14px; color: var(--muted);
}
.tier-note a { color: var(--accent); }

/* ===================== B：客户案例 ===================== */
.case-card {
  position: relative; display: flex; flex-direction: column; gap: 13px;
  background: var(--bg-soft); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 26px;
  transition: all 0.3s var(--ease);
}
.case-card:hover { transform: translateY(-4px); border-color: var(--line-strong); box-shadow: 0 18px 40px rgba(23, 35, 59, 0.1); }
.case-top { display: flex; align-items: center; justify-content: space-between; gap: 10px; }
.case-scale { font-size: 14.5px; font-weight: 700; color: var(--accent); }
.case-client { font-size: 17px; }
.case-title { font-size: 14px; color: var(--text-dim); margin-top: -8px; }
.case-flow { display: grid; gap: 10px; }
.case-flow dt { font-size: 12px; letter-spacing: 0.04em; color: var(--accent); margin-bottom: 2px; }
.case-flow dd { font-size: 13.5px; color: var(--text-dim); }
.case-quote {
  font-size: 13.5px; color: var(--text);
  padding: 14px 16px; border-radius: 12px;
  background: rgba(47, 107, 255, 0.08);
  border-left: 2px solid rgba(47, 107, 255, 0.6);
}
.case-quote span { display: block; margin-top: 6px; font-size: 12.5px; color: var(--muted); }
.case-meta { font-size: 12.5px; color: var(--muted); border-top: 1px dashed var(--line); padding-top: 12px; }

/* ===================== B：资产管理平台页 ===================== */
.mdm-console { border-radius: var(--radius-l); overflow: hidden; border: 1px solid var(--line); background: var(--bg-soft); box-shadow: var(--shadow); }
.mdm-bar { display: flex; align-items: center; gap: 10px; padding: 12px 18px; border-bottom: 1px solid var(--line); background: var(--primary-soft); }
.mdm-bar b { font-size: 14px; }
.mdm-bar-right { margin-left: auto; font-size: 12.5px; color: var(--muted); }
.mdm-body { padding: 22px; }
.mdm-kpis { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; margin-bottom: 20px; }
.mdm-kpi { text-align: center; padding: 16px; border-radius: 12px; background: var(--surface); border: 1px solid var(--line); }
.mdm-kpi b { display: block; font-size: 24px; font-weight: 800; color: var(--text); }
.mdm-kpi span { font-size: 12.5px; color: var(--muted); }
.mdm-kpi.warn b { color: var(--warn); }
.mdm-kpi.alert b { color: #ff7a7a; }
.mdm-note { margin-top: 14px; font-size: 12.5px; color: var(--muted); }

.svc-table { width: 100%; border-collapse: collapse; background: var(--bg-soft); }
.svc-table th { padding: 14px 16px; text-align: left; font-size: 13.5px; font-weight: 600; color: var(--primary); background: var(--primary-soft); }
.svc-table td { padding: 14px 16px; font-size: 13.5px; color: var(--text-dim); border-bottom: 1px solid var(--line); }
.svc-table tbody tr:last-child td { border-bottom: 0; }
.svc-table td b { font-size: 15px; color: var(--text); }
.svc-table .unit { margin-left: 6px; font-size: 12.5px; color: var(--muted); }

.st { display: inline-flex; align-items: center; height: 24px; padding: 0 10px; border-radius: 6px; font-size: 12.5px; border: 1px solid transparent; }
.st.on { color: var(--success); border-color: rgba(14, 123, 79, 0.35); background: rgba(14, 123, 79, 0.08); }
.st.warn { color: var(--warn); border-color: rgba(180, 83, 9, 0.35); background: rgba(180, 83, 9, 0.08); }
.st.off { color: var(--danger); border-color: rgba(192, 57, 43, 0.3); background: rgba(192, 57, 43, 0.07); }

.plan-card {
  position: relative; display: flex; flex-direction: column;
  background: var(--panel); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 28px;
  transition: all 0.3s var(--ease);
}
.plan-card:hover { transform: translateY(-4px); border-color: var(--line-strong); }
.plan-card.on { border-color: rgba(31, 90, 194, 0.5); background: var(--primary-soft); }
.plan-flag {
  position: absolute; top: -11px; left: 28px;
  height: 22px; padding: 0 12px; line-height: 22px; border-radius: 999px;
  font-size: 12px; font-weight: 600; background: var(--grad); color: #ffffff;
}
.plan-price { display: flex; align-items: baseline; gap: 5px; margin: 10px 0 6px; }
.plan-price b { font-size: 34px; font-weight: 800; color: var(--text); letter-spacing: -0.02em; }
.plan-price span { font-size: 13px; color: var(--muted); }
.plan-for { font-size: 13.5px; color: var(--muted); margin-bottom: 16px; }
.plan-card ul { display: grid; gap: 9px; margin-bottom: 22px; }
.plan-card ul li { position: relative; padding-left: 20px; font-size: 13.5px; color: var(--text-dim); }
.plan-card ul li::before { content: ""; position: absolute; left: 0; top: 8px; width: 7px; height: 7px; border-radius: 50%; background: var(--accent); opacity: 0.85; }
.plan-card .btn { margin-top: auto; }

/* ===================== B：问答与条款 ===================== */
.qa-nav { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 36px; }
.qa-nav .chip { cursor: pointer; }
.faq-grouped { gap: 34px; }
.faq-group { scroll-margin-top: 100px; }
.faq-group-title { font-size: 17px; margin-bottom: 14px; padding-left: 14px; border-left: 3px solid var(--accent); }
.faq-sub { display: grid; gap: 12px; }

.info-table { width: 100%; border-collapse: collapse; }
.info-table td { padding: 10px 0; font-size: 14px; border-bottom: 1px dashed var(--line); }
.info-table td:first-child { width: 140px; color: var(--muted); }
.info-table tr:last-child td { border-bottom: 0; }

@media (max-width: 1080px) {
  .tier-grid { grid-template-columns: repeat(2, 1fr); }
  .mdm-kpis { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
  .hp-list { grid-template-columns: 1fr; }
  .tier-grid { grid-template-columns: 1fr; }
  .mdm-bar-right { display: none; }
  .mdm-body { padding: 16px; }
  .info-table td:first-child { width: 110px; }
}

/* ===================== 布局稳定性（避免 JS 注入导致 CLS） ===================== */
#hot-products { min-height: 640px; }
#case-list { min-height: 300px; }
#faq-list { min-height: 360px; }
@media (max-width: 900px) {
  #hot-products { min-height: 480px; }
}

/* ===================== 减少动效偏好 ===================== */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
  .reveal { opacity: 1 !important; transform: none !important; }
  .dot-live { animation: none !important; }
}

/* =========================================================
   AI 页面：原「暗色子线」已整体撤销（2026-10-30）
   原设计给 ai.html 整页与首页 #ai 横幅一套独立的近黑底 + 青柠荧光 token，
   与全站白底企业信任系差异过大（底色明度差 95%），从其它页切换过去像跳站。
   现改为完全沿用主站 token 与组件，本页不再有任何专属色板规则。
   ========================================================= */