/* ==========================================================================
   吹豪千变 企业智能体平台 · 官网样式
   设计规范：品牌「克制米白版」——低饱和陶土橙 + 米白底 + 系统黑体
   原则：主色少而准；大面积用中性米白/白；标题不用书法斜势字
   文字三阶：#1A1714（标题）/ #5F5A52（正文）/ #8A847A（辅助）
   组件规范：卡片纯白 8px 圆角 · hover 仅上浮+阴影加深 · 按钮实心/描边两种
   ========================================================================== */

/* ---------- 设计令牌（克制米白：陶土橙点缀，避免大面积高饱和暖色） ---------- */
:root {
  --primary: #C6531A;          /* 主色：低饱和陶土橙加深（按钮/激活/少量强调）；16px 文字白字可达 AA 4.51:1 */
  --primary-hover: #9A3F12;    /* hover 加深（沿用 --primary-deep 语义） */
  --primary-light: #F08A52;    /* 浅主色：次要强调，少用 */
  --primary-deep: #9A3F12;     /* 深焦橙：深底强调 */
  --fresh-amber: #E8A85A;      /* 蜜橙：降饱和辅助 */
  --fresh-coral: #E8926E;      /* 珊瑚：降饱和 */
  --fresh-gold: #D4A85A;       /* 暖金：深底高光 */
  --fresh-warm: #E8A070;       /* 暖橙：淡背景点缀 */
  --fresh-amber-soft: rgba(232, 168, 90, .12);
  --fresh-coral-soft: rgba(232, 146, 110, .10);
  --fresh-gold-soft: rgba(212, 168, 90, .12);
  --fresh-warm-soft: rgba(232, 160, 112, .10);
  --cool-ink: #1A1714;         /* 暖墨：深底/标题 */
  --cool-ink-deep: #100E0C;
  --cool-ink-extra: #0A0908;
  --cool-green: #2A4A3A;
  --cool-teal: #1A4A5A;
  --cool-soft: #EDEAE4;        /* 中性浅底，替代高饱和冷色块 */
  --cool-green-soft: #E4EBE6;
  --cool-teal-soft: #E4E9EB;
  --brand-200: #F5DFD0;
  --brand-300: #E8A070;
  --brand-400: #E8926E;
  --brand-700: #7A3210;
  --primary-soft: #F7EDE4;     /* 极淡橙底：标签/轻提示 */
  --primary-softer: #F7F4EF;   /* 与页面底同系，避免「到处一块橙」 */
  --accent: #E8926E;
  --ink: #1A1714;              /* 暖墨标题色 */
  --ink-100: #F0EDE8;
  --ink-300: #8A847A;
  --text: #1A1714;
  --text-secondary: #5F5A52;
  --text-tertiary: #8A847A;
  --text-inverse: #ffffff;
  --bg: #F7F4EF;               /* 米白页底 */
  --bg-soft: #F7F4EF;
  --border: #E8E2D8;
  --border-strong: #D9D1C4;
  --line-soft: #F0EBE3;
  --success: #52c41a;
  --warn: #faad14;
  --danger: #f5222d;
  --info: #1677ff;
  --accent-gold: #C98A2E;
  --accent-gold-bright: #D4A85A;
  --radius: 8px;
  --radius-sm: 6px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --shadow-card: 0 1px 2px rgba(26,23,20,.04), 0 4px 14px -6px rgba(26,23,20,.06);
  --shadow-hover: 0 16px 36px -14px rgba(26,23,20,.14), 0 6px 14px -8px rgba(26,23,20,.08);
  --shadow-header: 0 2px 12px rgba(26,23,20, .05);
  --font-stack: -apple-system, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", "Source Han Sans SC", sans-serif;
  /* 标题与正文统一系统黑体，避免书法字造成的「斜体」观感 */
  --font-serif: var(--font-stack);
  --mono-stack: ui-monospace, SFMono-Regular, Consolas, "Courier New", monospace;
  --container: 1240px;
  --header-h: 92px;
}

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

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  font-family: var(--font-stack);
  font-size: 16px;
  line-height: 1.7;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: var(--primary); text-decoration: none; transition: color .2s; }
a:hover { color: var(--primary-hover); }
::selection { background: rgba(198, 83, 26, .16); }
ul, ol { list-style: none; }
button { font-family: inherit; cursor: pointer; }

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

/* ---------- 顶部导航（毛玻璃清透白底 + 天青亮线） ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  overflow: visible;
  background: rgba(255, 255, 255, .82);
  backdrop-filter: saturate(160%) blur(14px);
  -webkit-backdrop-filter: saturate(160%) blur(14px);
  border-bottom: 1px solid var(--border-strong);
  transition: border-color .25s, box-shadow .25s;
}
.site-header::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 1px;
  background: var(--border);
  pointer-events: none;
}
.site-header.is-scrolled { box-shadow: var(--shadow-header); }

.header-inner { display: flex; align-items: center; gap: 32px; padding: 14px 0; }

.logo { display: flex; align-items: center; gap: 10px; flex-shrink: 0; color: var(--ink); line-height: 0; text-decoration: none; }
.logo-mark {
  width: 38px; height: 38px; border-radius: 10px;
  background: linear-gradient(135deg, var(--primary), var(--primary-hover));
  display: flex; align-items: center; justify-content: center;
  color: #fff; font-weight: 700; font-size: 17px; letter-spacing: .5px;
  box-shadow: 2px 4px 10px rgba(198,83,26, .20);
}
/* Logo（页眉，左右结构：彩色祥云 SVG 图标左 + 品牌文字右） */
.logo-icon {
  height: 44px;
  width: auto;
  display: block;
  flex-shrink: 0;
  background: transparent;
}
.logo-text { display: flex; flex-direction: column; line-height: 1.25; color: var(--text); }
/* 品牌名加粗放大（衬线），与放大的涟漪 mark 配套 */
.logo-text strong { font-size: 22px; font-weight: 800; font-family: var(--font-serif); letter-spacing: .01em; }
/* 副标题弱化：字号缩小+字距拉开，只作补充说明，不与品牌名/导航抢视觉权重 */
.logo-text small { font-size: 11px; letter-spacing: .6px; color: var(--text-secondary); margin-top: 3px; }

.main-nav { display: flex; align-items: center; gap: 26px; margin-left: auto; }
.nav-item { position: relative; }
.nav-item > a {
  position: relative;
  display: flex; align-items: center; gap: 5px;
  padding: 8px 10px; border-radius: 0;
  color: var(--text); font-size: 15px; font-weight: 500;
}
/* 菜单 hover：变色 + 细下划线（品牌衍生色，禁随机变色） */
.nav-item > a::before {
  content: ""; position: absolute; left: 0; right: 0; bottom: 2px; height: 2px;
  background: transparent; border-radius: 1px; transition: background .2s;
}
.nav-item > a:hover { color: var(--primary); }
.nav-item > a:hover::before { background: var(--primary); }
/* 当前页面：蓝色下划线激活态（明确位置） */
.nav-item > a.active { color: var(--primary); font-weight: 600; }
.nav-item > a.active::before { background: var(--primary); }
/* 下拉箭头：仅挂载在有二级菜单的导航项上 */
.nav-item:has(.sub-nav) > a::after {
  content: ""; width: 7px; height: 7px;
  border-right: 1.5px solid currentColor; border-bottom: 1.5px solid currentColor;
  transform: rotate(45deg) translateY(-2px); opacity: .45; transition: transform .2s;
}
.nav-item:has(.sub-nav):hover > a::after,
.nav-item:has(.sub-nav):focus-within > a::after,
.nav-item.is-open > a::after { transform: rotate(-135deg) translateY(1px); opacity: .7; }
.sub-nav {
  position: absolute; top: calc(100% + 10px); left: 50%; transform: translateX(-50%);
  min-width: 220px; background: #fff; border: 1px solid var(--border); border-radius: var(--radius-sm);
  box-shadow: var(--shadow-hover); padding: 8px 0;
  opacity: 0; visibility: hidden; transition: all .2s; z-index: 100;
}
.nav-item:hover .sub-nav,
.nav-item:focus-within .sub-nav,
.nav-item.is-open .sub-nav { opacity: 1; visibility: visible; top: calc(100% + 4px); }
.sub-nav a {
  display: block; padding: 9px 18px; font-size: 14.5px; color: var(--text); white-space: nowrap;
}
.sub-nav a:hover { color: var(--primary); background: var(--primary-soft); }
/* 产品分组：产品名标题 + 缩进子项（后续新产品在 .sub-nav 内追加同构 .sub-nav-group） */
.sub-nav .sub-nav-group-title { font-weight: 700; font-size: 13.5px; color: var(--ink); padding: 8px 18px 4px; }
.sub-nav .sub-nav-group-title:hover { color: var(--ink); background: none; }
.sub-nav .sub-nav-group a:not(.sub-nav-group-title)::before {
  content: ""; display: inline-block; width: 4px; height: 4px; border-radius: 50%;
  background: var(--fresh-coral); margin-right: 8px; vertical-align: 2px; opacity: .8;
}
.sub-nav .sub-nav-group a:not(.sub-nav-group-title) { padding-left: 26px; }
.sub-nav-group + .sub-nav-group { margin-top: 6px; padding-top: 6px; border-top: 1px solid var(--line-soft); }

/* 顶栏 CTA：主色实心，hover 加深 */
.header-cta { flex-shrink: 0; }
.header-cta.btn-primary {
  background: var(--primary);
  box-shadow: 0 2px 8px rgba(198, 83, 26, .18);
}
.header-cta.btn-primary:hover {
  background: var(--primary-hover);
  box-shadow: 0 4px 12px -4px rgba(198, 83, 26, .22);
}

.nav-toggle {
  display: none; width: 42px; height: 42px; margin-left: auto;
  background: none; border: none; flex-direction: column;
  align-items: center; justify-content: center; gap: 5px;
}
.nav-toggle span { width: 22px; height: 2px; background: var(--text); border-radius: 2px; transition: transform .25s, opacity .25s; }
.nav-toggle.is-open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.is-open span:nth-child(2) { opacity: 0; }
.nav-toggle.is-open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- 按钮规范：全站仅两种 —— 主按钮实心填充 / 次按钮品牌色描边透明底 ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 12px 28px; border-radius: 8px;
  font-size: 16px; font-weight: 600; line-height: 1.4;
  border: 1px solid transparent; transition: all .2s;
}
/* 主按钮：主色实心填充，hover 加深到 --primary-deep (#9A3F12) */
.btn-primary {
  background: var(--primary);
  color: var(--text-inverse);
  box-shadow: 0 2px 8px rgba(198, 83, 26, .18);
}
.btn-primary:hover {
  background: var(--primary-hover);
  color: #fff; box-shadow: 0 6px 16px -6px rgba(198, 83, 26, .38);
  transform: translateY(-1px);
}
/* 次按钮：品牌色描边、透明底（btn-secondary 与 btn-ghost 统一为同一视觉） */
.btn-secondary { background: transparent; color: var(--primary); border-color: var(--primary); }
.btn-secondary:hover { background: var(--primary-soft); color: var(--primary-hover); border-color: var(--primary-hover); }
.btn-ghost { background: transparent; color: var(--primary); border-color: var(--primary); }
.btn-ghost:hover { background: var(--primary-soft); color: var(--primary-hover); border-color: var(--primary-hover); }
/* 深色场景主按钮（白底蓝字）与次按钮（白描边） */
.btn-white { background: #fff; color: var(--primary); }
.btn-white:hover { background: var(--primary-softer); transform: translateY(-1px); }
.btn-outline-white { background: transparent; color: #fff; border-color: rgba(255, 255, 255, .6); }
.btn-outline-white:hover { background: rgba(255, 255, 255, .12); color: #fff; border-color: rgba(255, 255, 255, .85); }
.btn-sm { padding: 8px 20px; font-size: 14px; }
.btn-lg { padding: 15px 36px; font-size: 17px; }

/* ---------- 区块（米白与极淡暖灰交替，避免大面积橙底） ---------- */
.section { padding: 88px 0; }
.section-alt { background: #ECE6DC; }
/* 板块开篇叙事段：把"标题 + 网格"模板改为"故事开头 + 网格"，打破连续同构 */
.pain-opener {
  max-width: 720px; margin: 0 auto 56px; text-align: center;
}
.pain-opener .po-quote {
  font-family: var(--font-serif); font-size: 24px; font-weight: 700;
  line-height: 1.5; color: var(--ink); margin: 0 0 12px;
}
.pain-opener .po-text {
  font-size: 16px; font-weight: 500; line-height: 1.7;
  color: var(--text-secondary); margin: 0 0 14px;
}
.pain-opener .po-text .em {
  color: var(--primary); font-style: normal; font-weight: 700;
}
.pain-opener .po-source {
  display: block; font-size: 13px; color: var(--text-tertiary); letter-spacing: .04em;
}
@media (max-width: 640px) {
  .pain-opener .po-quote { font-size: 20px; }
}

.section-head { max-width: 760px; margin: 0 auto 56px; text-align: center; }
.section-head.left { text-align: left; margin-left: 0; }
.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 13px; font-weight: 600; letter-spacing: 2px;
  color: var(--primary); text-transform: uppercase; margin-bottom: 14px;
}
/* 左线全站必有；右线仅居中场景（section-head 居中版 + 子页 page-hero）补对称，否则文字光学中心会右偏 */
.eyebrow::before, .section-head:not(.left) .eyebrow::after, .page-hero .eyebrow::after {
  content: ""; width: 24px; height: 2px; background: var(--primary); opacity: .4; border-radius: 2px;
}
.section-title { font-size: 36px; font-weight: 700; font-family: var(--font-serif); line-height: 1.3; margin-bottom: 16px; }
.section-desc { font-size: 17px; color: var(--text-secondary); }

/* ---------- Hero（左右双栏：文案 + 实操 mockup） ---------- */
.hero {
  position: relative; overflow: hidden;
  padding: 88px 0 80px;
  background:
    linear-gradient(180deg, transparent 85%, var(--bg-soft) 100%),
    radial-gradient(58% 50% at 88% 0%, rgba(229, 103, 42, .08), transparent 65%),
    linear-gradient(180deg, #F3EFE8 0%, var(--bg) 72%);
}
.hero::before,
.hero::after { display: none; }
.hero-grid {
  position: relative;
  display: grid; grid-template-columns: 0.95fr 1.25fr; gap: 44px; align-items: center;
}
.hero-left { max-width: 540px; }
.hero-eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 6px 14px;
  background: #fff;
  color: var(--primary); border: 1px solid var(--border);
  border-radius: 999px; font-size: 12px; font-weight: 600;
  letter-spacing: .12em; text-transform: uppercase;
}
.hero-eyebrow::before {
  content: ""; width: 6px; height: 6px; border-radius: 50%;
  background: var(--primary); box-shadow: 0 0 0 3px rgba(198, 83, 26, .12);
}
.hero-title {
  margin: 20px 0 16px;
  font-size: clamp(38px, 4.5vw, 54px); font-weight: 800;
  font-family: var(--font-serif);
  letter-spacing: -.01em; line-height: 1.12;
}
.hero-title em {
  font-style: normal;
  color: var(--primary);
  display: inline;
}
.hero-desc { margin: 0 0 28px; font-size: 17px; color: var(--text-secondary); line-height: 1.7; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }
/* Hero 信任条：mono 数字 + 事实陈述（不编造客户数量） */
.hero-trust { margin-top: 40px; display: flex; gap: 28px; flex-wrap: wrap; }
.hero-trust .num-item b {
  display: block; font-family: var(--mono-stack);
  font-size: 24px; font-weight: 600;
  color: var(--primary);
}
.hero-trust .num-item span { display: block; font-size: 12.5px; color: var(--text-secondary); margin-top: 3px; }
/* 右侧产品 mockup：浏览器窗口 + 实操动画 */
.mockup {
  position: relative;
  background: #fff; border: 1px solid var(--border); border-radius: 20px;
  box-shadow: 0 18px 40px -12px rgba(27,42,61,.18), 0 6px 14px -6px rgba(27,42,61,.10);
  overflow: hidden;
}
.mockup::before {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background: radial-gradient(60% 50% at 70% 20%, rgba(229, 103, 42, .05), transparent 70%);
}
.mockup-bar {
  display: flex; align-items: center; gap: 8px;
  padding: 12px 18px; background: #F7F4EF; border-bottom: 1px solid #E8E2D8;
}
.mockup-dot { width: 10px; height: 10px; border-radius: 50%; flex-shrink: 0; }
.mockup-dot.r { background: #ff5f57; }
.mockup-dot.y { background: #ffbd2e; }
.mockup-dot.g { background: #28c840; }
.mockup-url { margin-left: 10px; font-size: 12px; color: var(--ink); font-weight: 700; font-family: var(--mono-stack); }
.mockup-body { background: #F7F4EF; padding: 14px; }
.mockup-body svg { width: 100%; height: auto; display: block; }

/* Hero 品牌背景底纹：粒子光线 + 数据流弧线，低透明度铺于内容之下 */
.hero-bg {
  position: absolute; inset: 0; z-index: 0; pointer-events: none;
  background: url("../img/hero-bg.png") center / cover no-repeat;
  opacity: .2;
  /* 底纹仅铺在 hero 盒内，若在底边戛然而止，会在与下一区块交界处压出一条全宽色差线；
     改为底部平滑渐隐（55% 起渐出），交界处底纹贡献归零，与下方 #F7F4EF 无缝衔接 */
  -webkit-mask-image: linear-gradient(180deg, #000 55%, transparent 100%);
  mask-image: linear-gradient(180deg, #000 55%, transparent 100%);
}
.hero .container { position: relative; z-index: 1; }

/* ---------- Hero 入场动效：左文案 / 右窗口两组依次浮现（纯 CSS；每屏限 2 组，遵循 UX 规范） ---------- */
@keyframes heroIn {
  from { opacity: 0; transform: translateY(22px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes heroBgIn { from { opacity: 0; } to { opacity: .2; } }
.hero-bg { animation: heroBgIn 1.1s ease-out both; }
.hero-left { animation: heroIn .7s cubic-bezier(.22, .61, .36, 1) both; }
.hero-right { position: relative; animation: heroIn .7s cubic-bezier(.22, .61, .36, 1) .15s both; }

/* ---------- Hero 浮层数据徽章：叠在 mockup 边缘制造纵深（数字与信任条一致，纯装饰） ---------- */
@keyframes badgeFloat { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-7px); } }
.hero-badge { position: absolute; z-index: 2; pointer-events: none; }
/* 两卡骑在窗口对角边缘（非悬浮在窗口内容上方）：左下卡下探出底边，避免压住对话输入区；右上卡同步上移骑顶边，构图对称 */
.badge-a { top: -20px; right: -16px; animation: badgeFloat 5.5s ease-in-out infinite; }
.badge-b { bottom: -22px; left: -18px; animation: badgeFloat 6.5s ease-in-out 1.2s infinite; }
.hero-badge-card {
  display: flex; align-items: center; gap: 10px;
  background: rgba(255, 255, 255, .92);
  backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px);
  border: 1px solid var(--border); border-radius: 14px;
  padding: 10px 16px 10px 12px;
  box-shadow: 0 12px 28px -10px rgba(27, 42, 61, .22);
}
.badge-ico {
  display: inline-flex; align-items: center; justify-content: center;
  width: 34px; height: 34px; border-radius: 10px;
  background: var(--primary-soft); color: var(--primary);
  flex: none;
}
.badge-ico svg { width: 18px; height: 18px; }
.badge-txt b { display: block; font-family: var(--mono-stack); font-size: 17px; line-height: 1.1; color: var(--ink); }
.badge-txt small { display: block; font-size: 12px; color: var(--text-secondary); margin-top: 2px; white-space: nowrap; }

/* 品牌词强调：单色实线，避免高饱和双波浪抢戏 */
.hero-title em { position: relative; }
.hero-title em::after {
  content: ""; position: absolute; left: 2%; right: 2%; bottom: -4px; height: 2px;
  background: var(--primary); opacity: .35; border-radius: 2px;
}

/* 内页 Hero（比首页矮） */
.page-hero {
  position: relative; overflow: hidden;
  padding: 72px 0 56px;
  background: linear-gradient(180deg, #F3EFE8 0%, var(--bg) 100%);
}
.page-hero-inner { max-width: 860px; margin: 0 auto; text-align: center; }
.page-hero h1 { font-size: 40px; font-weight: 800; font-family: var(--font-stack); letter-spacing: -.01em; line-height: 1.3; }
.page-hero h1 em {
  font-style: normal;
  color: var(--primary);
  display: inline;
}
.page-hero p { margin-top: 14px; font-size: 17px; color: var(--text-secondary); }

/* 面包屑 */
.breadcrumb { padding: 18px 0 0; font-size: 14px; color: var(--text-secondary); }
.breadcrumb a { color: var(--text-secondary); }
.breadcrumb a:hover { color: var(--primary); }
.breadcrumb .sep { margin: 0 8px; color: var(--border-strong); }
.breadcrumb .current { color: var(--text); font-weight: 500; }

/* ---------- 数据亮点条 ---------- */
.stats-band { margin-top: 72px; }
.stats-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px;
  background: var(--border); border: 1px solid var(--border);
  border-radius: var(--radius); overflow: hidden;
  box-shadow: var(--shadow-card);
}
.stat-item { background: #fff; padding: 28px 24px; text-align: center; }
.stat-value {
  font-size: 38px; font-weight: 700; line-height: 1.2;
  color: var(--ink);
  white-space: nowrap;
}
.stat-label { margin-top: 6px; font-size: 15px; font-weight: 600; white-space: nowrap; }
.stat-desc { margin-top: 2px; font-size: 13px; color: var(--text-secondary); }

/* 侧栏 stats 区域较窄，缩小字号与内边距避免换行 */
.two-col .stats-grid .stat-item { padding: 28px 10px; }
.two-col .stats-grid .stat-value { font-size: 28px; }
.two-col .stats-grid .stat-label { font-size: 12.5px; }

/* ---------- 能力卡片 ---------- */
.cap-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.cap-grid.cols-3 { grid-template-columns: repeat(3, 1fr); }
.cap-card {
  position: relative;
  background: #fff;
  border: 1px solid var(--border); border-radius: var(--radius);
  padding: 30px 26px; transition: transform .25s, box-shadow .25s;
}
/* hover 规范：轻微上浮 + 阴影加深，禁止变色 */
.cap-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-hover); }
.cap-icon {
  width: 52px; height: 52px; border-radius: var(--radius-sm);
  background: var(--primary-soft); color: var(--primary);
  display: flex; align-items: center; justify-content: center; margin-bottom: 18px;
}
.cap-icon svg { width: 26px; height: 26px; }
.cap-card h3 { font-size: 19px; font-weight: 700; margin-bottom: 10px; }
.cap-card p { font-size: 14.5px; color: var(--text-secondary); }
.cap-tags { margin-top: 16px; display: flex; flex-wrap: wrap; gap: 6px; }
.cap-tags span {
  font-size: 12px; color: var(--primary-light); background: var(--primary-softer);
  padding: 3px 10px; border-radius: 999px;
}

/* 深色节奏段（平台底座优势）：暖墨三阶 + 轻暖橙光晕，与米白主调统一 */
.section-dark {
  position: relative;
  background:
    radial-gradient(70% 90% at 88% -10%, rgba(229, 103, 42, .14), transparent 55%),
    radial-gradient(46% 60% at 6% 108%, rgba(232, 160, 112, .10), transparent 55%),
    linear-gradient(150deg, var(--cool-ink-extra) 0%, var(--cool-ink-deep) 58%, var(--ink) 100%);
  padding: 88px 0;
}
.section-dark .container { position: relative; z-index: 1; }
.section-dark::before {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background:
    radial-gradient(ellipse 50% 70% at 8% 30%, rgba(232, 160, 112, .10), transparent 70%),
    radial-gradient(ellipse 40% 50% at 92% 80%, rgba(229, 103, 42, .10), transparent 65%);
}
.section-dark .section-title { color: #fff; }
.section-dark .section-desc { color: rgba(255,255,255,.7); }
/* 深底 eyebrow：暖墨底 + 琥珀金点缀 */
.section-dark .eyebrow { color: var(--accent-gold-bright); }
.section-dark .eyebrow::before,
.section-dark .eyebrow::after { background: var(--accent-gold-bright); }
.cap-card-dark {
  background: rgba(255, 255, 255, .07);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 220, 190, .16);
  color: #fff;
}
.cap-card-dark:hover {
  transform: translateY(-3px);
  background: rgba(255, 255, 255, .11);
  border-color: rgba(255, 220, 190, .32);
  box-shadow: 0 16px 40px -12px rgba(10, 9, 8, .45);
}
.cap-card-dark h3 { color: #fff; }
.cap-card-dark p { color: rgba(255,255,255,.72); }
.cap-card-dark .cap-icon {
  background: rgba(229,103,42,.3); color: #F5DFD0;
}
.cap-card-dark:hover .cap-icon { background: var(--primary); color: #fff; }

/* ---------- 智能体卡片 ---------- */
.agent-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.agent-card {
  display: flex; flex-direction: column;
  background: #fff; border: 1px solid var(--border); border-radius: var(--radius);
  padding: 26px; transition: transform .25s, box-shadow .25s;
}
.agent-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-hover); }
.agent-card.is-hidden { display: none; }
.agent-card { cursor: pointer; }
/* 业务域配色：全部收敛到海军蓝家族（红线：不新增杂色） */
.agent-card[data-category="legal-compliance"] { --agent-color: #E5672A; }
.agent-card[data-category="finance"] { --agent-color: #FF6B3D; }
.agent-card[data-category="telecom-ops"] { --agent-color: #E8926E; }
.agent-top { display: flex; align-items: flex-start; gap: 14px; margin-bottom: 14px; }
.agent-icon {
  width: 52px; height: 52px; border-radius: var(--radius-sm); flex-shrink: 0;
  display: flex; align-items: center; justify-content: center; font-size: 26px;
  background: var(--primary-soft); /* fallback：老浏览器不支持 color-mix() */
  border: 1px solid var(--brand-300);
  background: color-mix(in srgb, var(--agent-color, var(--primary)) 12%, #fff);
  border: 1px solid color-mix(in srgb, var(--agent-color, var(--primary)) 28%, #fff);
}
.agent-icon svg { width: 24px; height: 24px; color: inherit; }
.agent-name { font-size: 18px; font-weight: 700; line-height: 1.35; }
.agent-en { display: block; font-size: 12px; color: var(--text-secondary); font-weight: 400; margin-top: 2px; }
.agent-tagline { font-size: 14px; color: var(--text-secondary); margin: 8px 0 14px; flex-grow: 1; }
.chip {
  display: inline-block; font-size: 12px; font-weight: 500;
  color: var(--primary-light); background: var(--primary-softer);
  padding: 3px 10px; border-radius: 999px; margin-bottom: 4px;
}
.agent-metric {
  display: flex; align-items: center; gap: 10px; flex-wrap: wrap;
  padding: 10px 14px; border-radius: var(--radius-sm);
  background: var(--bg-soft); border: 1px dashed var(--border-strong);
  font-size: 13px; margin-bottom: 14px;
}
.agent-metric .m-label { color: var(--text-secondary); }
.agent-metric .m-before { color: var(--text-secondary); text-decoration: line-through; text-decoration-color: rgba(112,118,127,.5); }
.agent-metric .m-arrow { color: var(--primary); font-weight: 700; }
.agent-metric .m-after { color: var(--primary); font-weight: 700; font-size: 15px; }
.agent-users { font-size: 12.5px; color: var(--text-secondary); margin-bottom: 16px; }
.agent-link { font-size: 14px; font-weight: 600; margin-top: auto; align-self: flex-start; }

/* ---------- 筛选页签 ---------- */
.filter-bar { display: flex; justify-content: center; gap: 10px; flex-wrap: wrap; margin-bottom: 40px; }
.filter-btn {
  padding: 8px 22px; border-radius: 999px; font-size: 14px; font-weight: 500;
  background: #fff; color: var(--text); border: 1px solid var(--border);
  transition: all .2s;
}
.filter-btn:hover { border-color: var(--primary); color: var(--primary); }
.filter-btn.active { background: var(--primary); border-color: var(--primary); color: #fff; }
/* 锚点复用筛选按钮样式（关于页分区导航） */
a.filter-btn { text-decoration: none; line-height: 1.5; }

/* 分组小标题 */
.group-title {
  display: flex; align-items: center; gap: 12px;
  font-size: 20px; font-weight: 700; margin: 48px 0 20px;
}
.group-title:first-of-type { margin-top: 0; }
.group-title .count { font-size: 13px; font-weight: 500; color: var(--primary); background: var(--primary-soft); padding: 2px 10px; border-radius: 999px; }
.group-title::after { content: ""; flex: 1; height: 1px; background: var(--border); }

/* ---------- 表格 ---------- */
.table-wrap { overflow-x: auto; border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow-card); background: #fff; }
table.data { width: 100%; border-collapse: collapse; font-size: 14.5px; min-width: 560px; }
table.data th, table.data td { padding: 13px 18px; text-align: left; border-bottom: 1px solid var(--border); }
table.data thead th { background: var(--bg-soft); color: var(--text); font-weight: 600; white-space: nowrap; }
table.data tbody tr:last-child td { border-bottom: none; }
table.data tbody tr:hover { background: var(--primary-softer); }
table.data td.ok { color: var(--success); font-weight: 600; }
table.data td.no { color: var(--danger); font-weight: 600; }
table.data td.mid { color: var(--warn); font-weight: 600; }
table.data td:first-child { font-weight: 500; }

/* ---------- 代码块 ---------- */
.code-block {
  background: #1f2129; border-radius: var(--radius-sm); overflow: hidden;
  box-shadow: var(--shadow-card); margin: 0;
}
.code-block .code-lang {
  display: flex; align-items: center; gap: 8px;
  padding: 9px 16px; font-size: 12px; color: #9aa3b2;
  border-bottom: 1px solid rgba(255, 255, 255, .08);
  font-family: var(--mono-stack);
}
.code-block .code-lang::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: var(--success); }
.code-block pre { padding: 16px 18px; overflow-x: auto; }
.code-block code { font-family: var(--mono-stack); font-size: 13px; line-height: 1.75; color: #E8E2D8; white-space: pre; }
.code-block .c { color: #7c8798; }

/* ---------- 流程步骤 ---------- */
.steps { display: grid; gap: 14px; }
.step-item {
  display: flex; gap: 16px; align-items: flex-start;
  background: #fff; border: 1px solid var(--border); border-radius: var(--radius);
  padding: 18px 20px;
}
.step-num {
  width: 34px; height: 34px; border-radius: 50%; flex-shrink: 0;
  background: var(--primary); color: #fff; font-weight: 700; font-size: 15px;
  display: flex; align-items: center; justify-content: center;
}
.step-body h4 { font-size: 15.5px; font-weight: 600; }
.step-body p { font-size: 14px; color: var(--text-secondary); margin-top: 2px; }

/* ---------- 痛点/解法 ---------- */
.pain-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.pain-solution {
  background: #fff; border: 1px solid var(--border); border-radius: var(--radius);
  overflow: hidden; transition: box-shadow .25s;
}
.pain-solution:hover { box-shadow: var(--shadow-hover); }
.ps-pain, .ps-fix { padding: 16px 20px; display: flex; gap: 10px; align-items: flex-start; font-size: 14.5px; }
.ps-pain { border-bottom: 1px dashed var(--border); color: var(--text-secondary); background: var(--bg-soft); }
.ps-fix { color: var(--text); }
.ps-pain .ico, .ps-fix .ico { flex-shrink: 0; font-weight: 700; }
.ps-pain .ico { color: var(--danger); }
.ps-fix .ico { color: var(--success); }

/* ---------- 架构图（分层） ---------- */
.arch { display: flex; flex-direction: column; align-items: center; gap: 0; }
.arch-layer {
  width: 100%; max-width: 760px;
  background: #fff; border: 1px solid var(--border-strong); border-radius: var(--radius);
  padding: 16px 22px; text-align: center; position: relative;
}
.arch-layer .layer-name {
  font-size: 12px; font-weight: 600; letter-spacing: 1.5px; color: var(--primary);
  text-transform: uppercase; margin-bottom: 6px;
}
.arch-layer .layer-body { font-size: 14.5px; color: var(--text); }
.arch-layer .layer-body strong { color: var(--primary); }
.arch-arrow { color: var(--primary); font-size: 20px; line-height: 1.35; padding: 3px 0; }
.arch-split { display: flex; gap: 14px; width: 100%; max-width: 760px; }
.arch-split .arch-layer { flex: 1; }

/* ---------- 两栏内容 ---------- */
.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: stretch; }

/* 关于我们 · 企业简介 */
.intro-shell {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(300px, 0.85fr);
  column-gap: 48px;
  row-gap: 0;
  align-items: stretch;
}
.intro-head {
  grid-column: 1;
  max-width: none;
  margin: 0 0 28px;
}
.intro-main {
  grid-column: 1;
  display: flex;
  flex-direction: column;
  min-height: 0;
}
.intro-main p {
  font-size: 16px;
  color: var(--text-secondary);
  line-height: 1.85;
  margin-bottom: 16px;
}
.intro-main p:last-of-type { margin-bottom: 0; }
.intro-lead {
  font-size: 17px;
  color: var(--text);
}
.intro-actions {
  margin-top: auto;
  padding-top: 28px;
}
.intro-aside {
  grid-column: 2;
  grid-row: 1 / span 2;
  display: flex;
  min-height: 0;
}
.intro-aside-card {
  flex: 1;
  display: flex;
  flex-direction: column;
  background:
    radial-gradient(120% 80% at 100% 0%, rgba(229, 103, 42, .06), transparent 58%),
    #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 26px;
  box-shadow: var(--shadow-card);
}
.intro-aside-card h3 {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 18px;
}
.intro-metrics {
  display: grid;
  grid-template-columns: 1fr 1fr;
  grid-auto-rows: 1fr;
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  overflow: hidden;
}
.intro-metric {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 104px;
  padding: 18px 12px;
  background: #fff;
  text-align: center;
}
.intro-metric-value {
  font-size: 26px;
  font-weight: 700;
  line-height: 1.2;
  color: var(--primary);
  white-space: nowrap;
}
@supports (background-clip: text) or (-webkit-background-clip: text) {
  .intro-metric-value {
    background-image: linear-gradient(135deg, #6B1E07 0%, var(--primary) 55%, var(--fresh-coral) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    color: var(--primary);
  }
}
.intro-metric-label {
  margin-top: 6px;
  font-size: 13.5px;
  font-weight: 600;
  color: var(--text);
  line-height: 1.4;
}
.intro-metric-desc {
  margin-top: 3px;
  font-size: 12.5px;
  color: var(--text-secondary);
  line-height: 1.5;
}
.intro-product-note {
  margin-top: auto;
  padding-top: 22px;
  border-top: 1px dashed var(--border);
}
.intro-product-tag {
  display: inline-block;
  margin-bottom: 10px;
  padding: 3px 10px;
  border-radius: 999px;
  background: var(--primary-soft);
  color: var(--primary);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .02em;
}
.intro-product-note p {
  margin: 0;
  font-size: 15px;
  color: var(--text);
  line-height: 1.6;
}
.intro-product-meta {
  margin-top: 6px !important;
  font-size: 13px !important;
  color: var(--text-secondary) !important;
}

/* 列表勾选 */
.check-list li { display: flex; gap: 10px; align-items: flex-start; padding: 7px 0; font-size: 15px; }
.check-list li::before {
  content: "✓"; flex-shrink: 0; width: 20px; height: 20px; margin-top: 3px;
  border-radius: 50%; background: var(--primary-soft); color: var(--primary);
  font-size: 12px; font-weight: 700; display: flex; align-items: center; justify-content: center;
}

/* ---------- 引用块（一句话总结） ---------- */
.quote-block {
  position: relative; margin: 0; padding: 28px 32px 28px 40px;
  background: var(--primary-soft);
  border: 1px solid rgba(229, 103, 42, .12);
  border-left: 4px solid var(--primary);
  border-radius: var(--radius);
  font-size: 16.5px; line-height: 1.8; color: var(--text);
}
.quote-block::before { content: "\201C"; position: absolute; top: 8px; left: 16px; font-size: 48px; color: var(--primary); opacity: .2; font-family: Georgia, serif; line-height: 1; }

/* ---------- 对话演示气泡 ---------- */
.chat-demo { display: flex; flex-direction: column; gap: 12px; max-width: 640px; }
.chat-bubble {
  align-self: flex-start; max-width: 86%;
  padding: 12px 18px; border-radius: 4px 16px 16px 16px;
  background: #fff; border: 1px solid var(--border-strong);
  font-size: 14.5px; color: var(--text); box-shadow: var(--shadow-card);
  font-family: var(--mono-stack);
}
.chat-bubble::before { content: "你"; display: block; font-size: 11px; color: var(--primary); font-weight: 600; margin-bottom: 3px; font-family: var(--font-stack); }

/* ---------- FAQ 手风琴 ---------- */
.faq-list { max-width: 820px; margin: 0 auto; display: grid; gap: 12px; }
.faq-item { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; }
.faq-q {
  width: 100%; display: flex; justify-content: space-between; align-items: center; gap: 16px;
  padding: 18px 22px; background: none; border: none; text-align: left;
  font-size: 16px; font-weight: 600; color: var(--text);
}
.faq-q:hover { color: var(--primary); }
.faq-q .faq-icon { flex-shrink: 0; width: 26px; height: 26px; border-radius: 50%; background: var(--primary-soft); color: var(--primary); font-size: 16px; font-weight: 700; display: flex; align-items: center; justify-content: center; transition: transform .25s; }
.faq-item.is-open .faq-q .faq-icon { transform: rotate(45deg); }
.faq-a { max-height: 0; overflow: hidden; transition: max-height .3s ease; }
.faq-a-inner { padding: 0 22px 20px; color: var(--text-secondary); font-size: 15px; }
.faq-a-inner code { font-family: var(--mono-stack); font-size: 13px; background: var(--primary-soft); color: var(--primary); padding: 1px 6px; border-radius: 4px; }

/* ---------- 表单 ---------- */
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.form-item { display: flex; flex-direction: column; gap: 7px; }
.form-item.full { grid-column: 1 / -1; }
.form-item label { font-size: 14px; font-weight: 600; }
.form-item label .req { color: var(--danger); margin-left: 3px; }
.form-item input, .form-item select, .form-item textarea {
  padding: 11px 14px; border: 1px solid var(--border-strong); border-radius: var(--radius-sm);
  font-size: 15px; font-family: inherit; color: var(--text); background: #fff;
  transition: border-color .2s, box-shadow .2s;
}
.form-item input:focus, .form-item select:focus, .form-item textarea:focus {
  outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(198,83,26, .12);
}
.form-item textarea { resize: vertical; min-height: 120px; }
.form-item .field-error { font-size: 12.5px; color: var(--danger); display: none; }
.form-item.has-error input, .form-item.has-error select, .form-item.has-error textarea { border-color: var(--danger); }
.form-item.has-error .field-error { display: block; }
.form-note { font-size: 13px; color: var(--text-secondary); }
/* 联系页：表单撑满卡片高度，使提交按钮与右侧卡片按钮底部对齐 */
.contact-form-card form { flex: 1; display: flex; flex-direction: column; }

/* 联系我们 · 扫码留言 */
.contact-message-card { display: flex; flex-direction: column; }
.contact-qr-layout {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 28px;
  align-items: start;
}
.contact-qr-box {
  padding: 14px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
}
.contact-qr-box img {
  display: block;
  width: 180px;
  height: 180px;
  object-fit: contain;
}
.contact-qr-caption {
  margin-top: 10px;
  font-size: 12.5px;
  color: var(--text-secondary);
  text-align: center;
}
.contact-qr-steps {
  display: grid;
  gap: 14px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.contact-qr-steps li {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  font-size: 14.5px;
  color: var(--text-secondary);
  line-height: 1.6;
}
.contact-qr-steps .step-no {
  flex-shrink: 0;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: var(--primary-soft);
  color: var(--primary);
  font-size: 13px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
}
.contact-qr-steps strong { display: block; color: var(--text); font-size: 15px; margin-bottom: 2px; }
.contact-qr-alt {
  margin-top: 24px;
  padding: 16px 18px;
  border-radius: var(--radius-sm);
  background: var(--bg-soft);
  border: 1px dashed var(--border);
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
}
.contact-qr-alt a { font-weight: 600; }
.form-success {
  display: none; padding: 16px 20px; border-radius: var(--radius-sm);
  background: rgba(82, 196, 26, .1); border: 1px solid rgba(82, 196, 26, .4);
  color: #389e0d; font-size: 15px; margin-top: 18px;
}
.form-success.is-visible { display: block; }
/* 提交失败态（复用提示框，红系） */
.form-success.is-error {
  background: rgba(224, 82, 82, .08); border-color: rgba(224, 82, 82, .4); color: #cf1322;
}

/* 信息卡片（联系页侧栏） */
.info-card { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 26px; box-shadow: var(--shadow-card); height: 100%; display: flex; flex-direction: column; }
.info-card h3 { font-size: 18px; font-weight: 700; margin-bottom: 16px; }
.info-row { display: flex; gap: 12px; padding: 10px 0; border-bottom: 1px dashed var(--border); font-size: 14.5px; }
.info-row:last-child { border-bottom: none; }
.info-row .k { color: var(--text-secondary); flex-shrink: 0; width: 76px; }
.info-row .v { color: var(--text); font-weight: 500; }
.info-row .v.pending { color: var(--warn); font-weight: 400; font-size: 13.5px; }

/* ---------- CTA 横幅：暖墨深底收束（复用 section-dark 语言，原生 .btn-white/.btn-outline-white 直接生效） ---------- */
.cta-band {
  position: relative; overflow: hidden;
  background:
    radial-gradient(70% 90% at 88% -10%, rgba(229, 103, 42, .14), transparent 55%),
    radial-gradient(46% 60% at 6% 108%, rgba(232, 160, 112, .10), transparent 55%),
    linear-gradient(150deg, var(--cool-ink-extra) 0%, var(--cool-ink-deep) 55%, var(--ink) 100%);
  border-radius: var(--radius-xl);
  padding: 72px 48px;
  text-align: center;
  box-shadow: 0 1px 2px rgba(26, 23, 20, .06), 0 24px 48px -16px rgba(26, 23, 20, .22);
}
.cta-band::before,
.cta-band::after { display: none; }
.cta-band h2 { color: #fff; font-size: 32px; font-weight: 700; font-family: var(--font-stack); position: relative; z-index: 1; }
.cta-band p { color: rgba(255, 255, 255, .72); margin: 12px auto 30px; max-width: 560px; position: relative; z-index: 1; }
.cta-band .hero-actions { margin: 0; position: relative; justify-content: center; z-index: 1; }

/* ---------- 场景：Tab 切换 + 主舞台 ---------- */
/* 场景区标题组：居中版式（2026-09-01 用户指定，与其他 section-head 一致）；
   01/06 计数器不再是右侧通栏锚点，改为居中落在描述下方 */
.scene-head .scene-counter { justify-content: center; margin-top: 18px; }
.scene-counter { display: flex; align-items: baseline; gap: 6px; font-family: var(--mono-stack); color: var(--ink-300); font-size: 13px; }
.scene-counter b { color: var(--ink); font-size: 28px; font-weight: 600; }
.scene-stage { display: grid; grid-template-columns: 280px 1fr; gap: 24px; align-items: start; }
.scene-tabs { display: flex; flex-direction: column; gap: 6px; }
.scene-tab {
  position: relative; display: flex; align-items: center; gap: 14px;
  padding: 18px 20px; border: 1px solid transparent; border-radius: var(--radius);
  background: transparent; text-align: left; cursor: pointer;
  color: var(--text-secondary);
  transition: all .28s cubic-bezier(.2,.7,.2,1);
}
.scene-tab:hover { color: var(--ink); background: var(--ink-100); }
.scene-tab .tab-no {
  font-family: var(--mono-stack); font-size: 15px; font-weight: 700;
  letter-spacing: .02em; color: var(--text-secondary); width: 28px; flex-shrink: 0;
  line-height: 1;
}
.scene-tab:hover .tab-no { color: var(--ink); }
.scene-tab .tab-icon {
  width: 36px; height: 36px; border-radius: 10px; flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
  background: var(--ink-100); font-size: 18px;
  transition: all .28s cubic-bezier(.2,.7,.2,1);
}
.scene-tab .tab-icon svg { width: 18px; height: 18px; stroke: currentColor; color: inherit; }
.scene-tab.active .tab-icon svg { color: var(--brand-400); }
.scene-tab .tab-name { font-size: 15px; font-weight: 600; color: inherit; }
.scene-tab .tab-bar {
  position: absolute; left: 20px; right: 20px; bottom: 8px; height: 2px;
  border-radius: 2px; overflow: hidden; opacity: 0; transition: opacity .16s;
}
.scene-tab .tab-bar::after {
  content: ""; display: block; height: 100%; width: 0;
  background: linear-gradient(90deg, var(--fresh-coral), var(--fresh-warm));
  transition: width .52s cubic-bezier(.2,.7,.2,1);
}
.scene-tab.active {
  background: linear-gradient(135deg, #0F1F33, var(--ink));
  border-color: rgba(198, 83, 26, .22); color: #fff; box-shadow: var(--shadow-hover);
}
.scene-tab.active .tab-no { color: var(--brand-300); font-weight: 800; }
.scene-tab.active .tab-icon { background: rgba(255,255,255,.08); }
.scene-tab.active .tab-bar { opacity: 1; }
.scene-tab.active .tab-bar::after { width: 100%; }

.scene-panels { position: relative; }
.scene-panel {
  display: none; min-height: 520px;
  border-radius: var(--radius-xl); overflow: hidden;
  border: 1px solid var(--border); background: #fff;
  box-shadow: var(--shadow-card);
}
.scene-panel.active { display: block; animation: panelIn .55s cubic-bezier(.2,.7,.2,1) both; }
@keyframes panelIn { from { opacity: 0; transform: translateY(14px); } to { opacity: 1; transform: translateY(0); } }

/* 面板顶部：深墨 + 品牌橘径向渐变（呼应 Logo），叠加细纹理 */
.scene-panel-head {
  position: relative; padding: 40px 44px 36px;
  background:
    radial-gradient(120% 130% at 100% 0%, rgba(229, 103, 42, .22), transparent 52%),
    radial-gradient(70% 90% at 8% 110%, rgba(232, 160, 112, .16), transparent 55%),
    linear-gradient(150deg, #0F1F33 0%, var(--ink) 62%);
  color: #fff; overflow: hidden;
}
.scene-panel-head::after {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background:
    radial-gradient(40% 30% at 20% 80%, rgba(229, 103, 42, .22), transparent 70%),
    linear-gradient(transparent 50%, rgba(255,255,255,.03) 50%);
  background-size: auto, 4px 4px;
}
.scene-panel-head .scene-kicker {
  position: relative; font-family: var(--mono-stack); font-size: 12px; font-weight: 600;
  letter-spacing: .12em; text-transform: uppercase; color: #F5DFD0;
}
.scene-panel-head h3 { position: relative; font-size: 28px; font-weight: 700; font-family: var(--font-serif); letter-spacing: 0; line-height: 1.35; margin: 10px 0 12px; color: #fff; }
.scene-panel-head h3 .hl { color: var(--fresh-coral); }
.scene-panel-head p { position: relative; font-size: 15px; color: rgba(255,255,255,.78); max-width: 560px; }

/* 面板主体：左数据 / 右流程，底部 CTA 通栏 */
.scene-panel-body {
  padding: 32px 44px 40px;
  display: grid; grid-template-columns: 1.1fr 1fr; gap: 8px 36px;
}
.scene-metrics { grid-column: 1; grid-row: 1 / span 2; display: flex; flex-wrap: wrap; gap: 40px; align-content: flex-start; }
.scene-metric .num {
  font-family: var(--mono-stack); font-size: 44px; font-weight: 600; line-height: 1;
  color: var(--primary);
  letter-spacing: -1px;
}
@supports (background-clip: text) or (-webkit-background-clip: text) {
  .scene-metric .num {
    background-image: linear-gradient(135deg, #6B1E07 0%, var(--primary) 55%, var(--fresh-coral) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    color: var(--primary);
  }
}
.scene-metric .num .arrow { color: var(--primary); font-weight: 400; padding: 0 6px; -webkit-text-fill-color: var(--primary); }
.scene-metric .num small { font-size: 20px; color: var(--text-secondary); font-weight: 500; -webkit-text-fill-color: currentColor; }
.scene-metric .lbl { margin-top: 8px; font-size: 13px; color: var(--text-secondary); }
.scene-flow-label { grid-column: 2; grid-row: 1; align-self: start; font-size: 13px; font-weight: 600; color: var(--text-secondary); letter-spacing: 1px; }
.scene-flow { grid-column: 2; grid-row: 2; display: flex; flex-direction: column; gap: 12px; }
.scene-step { display: flex; align-items: center; gap: 10px; font-size: 14.5px; font-weight: 500; color: var(--text); }
.scene-step .step-no {
  width: 22px; height: 22px; border-radius: 50%; flex-shrink: 0;
  background: var(--primary-soft); color: var(--primary);
  font-family: var(--mono-stack); font-size: 11.5px; font-weight: 700;
  display: flex; align-items: center; justify-content: center;
}
.scene-step-sep { display: none; }
.scene-panel-cta { grid-column: 1 / -1; display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; border-top: 1px dashed var(--border); padding-top: 24px; margin-top: 22px; }
.scene-panel-cta .cta-note { font-size: 14px; color: var(--text-secondary); }
.scene-link-btn {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--ink); color: #fff; padding: 12px 24px; border-radius: 999px;
  font-size: 14.5px; font-weight: 600; transition: all .2s;
}
.scene-link-btn:hover { background: var(--primary); color: #fff; }
.scene-link-btn .arr { transition: transform .2s; }
.scene-link-btn:hover .arr { transform: translateX(3px); }

/* 平台页：全栈能力大图卡（图示区 + 标题 + 描述） */
.feat-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.feat-card {
  background: #fff; border: 1px solid var(--border); border-radius: var(--radius);
  overflow: hidden; display: flex; flex-direction: column;
  transition: transform .3s, box-shadow .3s;
}
.feat-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-hover); }
.feat-visual { height: 240px; display: flex; align-items: center; justify-content: center; }
.feat-visual svg { width: 100%; height: 100%; display: block; }
/* 能力图示底：晴湖蓝渐变 / 深海蓝渐变 / 湖光青渐变 */
.feat-visual.v-orange { background: linear-gradient(135deg, #C6531A 0%, #E5672A 55%, #E8A070 100%); }
.feat-visual.v-ink { background: linear-gradient(135deg, #0F1F33 0%, #A85A2E 60%, #D8702E 100%); }
.feat-visual.v-amber { background: linear-gradient(135deg, #FF9A4D 0%, #FFB066 55%, #FFD9B8 100%); }
.feat-body { padding: 26px 28px 30px; }
.feat-body h3 { font-size: 20px; font-weight: 700; margin-bottom: 12px; color: var(--ink); }
.feat-body p { font-size: 14.5px; color: var(--text-secondary); line-height: 1.8; }

/* 平台页：企业价值 2×2 图标卡（黑色描边图标，无底色） */
.val-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.val-card {
  background: #fff;
  border: 1px solid var(--border); border-radius: var(--radius);
  padding: 34px 32px; transition: transform .3s, box-shadow .3s;
}
.val-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-hover); }
.val-icon { width: 44px; height: 44px; margin-bottom: 20px; color: var(--primary); }
.val-icon svg { width: 100%; height: 100%; }
.val-card h3 { font-size: 19px; font-weight: 700; margin-bottom: 12px; color: var(--text); }
.val-card p { font-size: 14.5px; color: var(--text-secondary); line-height: 1.8; }

@media (max-width: 900px) {
  .feat-grid { grid-template-columns: 1fr; }
  .feat-visual { height: 200px; }
}
@media (max-width: 640px) {
  .val-grid { grid-template-columns: 1fr; }
  .logo-icon { height: 34px; }   /* 移动端导航 logo 图标统一 34px */
}

/* 首页场景卡片：大 mono 编号 + 大数字锚点 + 悬停"查看 →" */
.sc-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.sc-card {
  position: relative; display: flex; flex-direction: column;
  background: #fff;
  border: 1px solid var(--border); border-radius: var(--radius);
  padding: 28px 26px 24px; transition: transform .3s, box-shadow .3s;
}
.sc-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-hover); }
.sc-top { display: flex; justify-content: space-between; align-items: flex-start; margin-bottom: 20px; }
.sc-no { font-family: var(--mono-stack); font-size: 36px; font-weight: 700; line-height: 1; letter-spacing: -1px; color: #FFE0CC; transition: color .3s; }
.sc-card:hover .sc-no { color: var(--primary); }
.sc-icon {
  width: 44px; height: 44px; border-radius: var(--radius-sm); flex-shrink: 0;
  background: var(--primary-soft); color: var(--primary);
  display: flex; align-items: center; justify-content: center;
  transition: color .3s;
}
.sc-icon svg { width: 22px; height: 22px; }
.sc-card:hover .sc-icon { color: var(--primary); }
.sc-card h3 { font-size: 19px; font-weight: 700; margin-bottom: 10px; color: var(--ink); }
.sc-card > p { font-size: 14.5px; color: var(--text-secondary); flex: 1; }
.sc-metric { margin-top: 18px; padding-top: 16px; border-top: 1px dashed var(--border); }
.sc-metric .before-after {
  display: flex; align-items: center; gap: 8px;
  padding: 10px 14px;
  background: linear-gradient(120deg, #6B1E07 0%, var(--primary) 70%, #FF8E5A 100%);
  border-radius: var(--radius-sm);
  font-family: var(--mono-stack); font-size: 16px; font-weight: 600;
  color: #fff; letter-spacing: -0.3px;
}
.sc-metric .before { font-size: 14px; font-weight: 500; color: rgba(255, 255, 255, .78); }
.sc-metric .arrow { font-size: 14px; font-weight: 400; color: rgba(255, 255, 255, .9); }
.sc-metric .after-num { font-size: 22px; font-weight: 700; color: #fff; }
.sc-metric .unit { font-size: 14px; font-weight: 600; color: #fff; margin-left: 1px; }
.sc-metric .metric-label { font-size: 12.5px; color: var(--text-secondary); margin-top: 8px; }
.sc-link { margin-top: 14px; font-size: 14px; font-weight: 600; color: var(--primary); display: inline-flex; align-items: center; gap: 6px; }
.sc-link .arr { transition: transform .25s; }
.sc-card:hover .sc-link .arr { transform: translateX(4px); }

@media (max-width: 900px) {
  .sc-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
  .sc-grid { grid-template-columns: 1fr; }
}

@media (max-width: 900px) {
  .scene-stage { grid-template-columns: 1fr; }
  .scene-tabs { flex-direction: row; overflow-x: auto; padding-bottom: 6px; }
  .scene-tab { flex: 0 0 auto; min-width: 150px; }
  .scene-panel { min-height: 0; }
  .scene-panel-head, .scene-panel-body { padding: 26px 22px; }
  .scene-panel-head h3 { font-size: 24px; }
  .scene-panel-body { grid-template-columns: 1fr; }
  .scene-metrics, .scene-flow-label, .scene-flow, .scene-panel-cta { grid-column: 1; grid-row: auto; }
  .scene-metrics { gap: 28px; margin-bottom: 22px; }
  .scene-flow { margin-top: 8px; }
  .scene-metric .num { font-size: 32px; }
  .hero-grid { grid-template-columns: 1fr; gap: 40px; }
  .hero-left { max-width: 640px; }
}

/* 架构图白卡框 */
.arch-frame {
  background: #fff; border: 1px solid var(--border); border-radius: var(--radius-lg);
  box-shadow: 0 24px 60px -20px rgba(27,42,61,.12);
  padding: 40px 40px 32px;
}
@media (max-width: 640px) {
  .arch-frame { padding: 20px 16px; }
}

/* 案例卡片 */
.case-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.case-card { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; transition: transform .25s, box-shadow .25s; display: flex; flex-direction: column; }
.case-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-hover); }
.case-cover {
  height: 120px; display: flex; align-items: center; justify-content: center; font-size: 44px;
  background: var(--primary-softer);
  border-bottom: 1px solid var(--border);
}
.case-card:nth-child(3n+2) .case-cover {
  background: #F0EBE3;
}
.case-card:nth-child(3n) .case-cover svg { color: var(--primary); }
.case-cover svg { width: 40px; height: 40px; color: var(--primary); opacity: .85; transition: transform .3s, opacity .3s; }
.case-card:hover .case-cover svg { transform: scale(1.08); opacity: 1; }
.case-head { padding: 22px 26px 18px; border-bottom: 1px solid var(--border); background: var(--bg-soft); }
.case-head .case-no {
  display: inline-flex; align-items: center; justify-content: center;
  min-width: 40px; height: 40px; padding: 0 10px; margin-bottom: 10px;
  font-family: var(--mono-stack); font-size: 16px; font-weight: 800;
  letter-spacing: .02em; line-height: 1;
  color: #fff; background: var(--primary); border-radius: 10px;
  box-shadow: 0 6px 14px -6px rgba(198, 83, 26, .5);
}
.case-head h3 { font-size: 19px; font-weight: 700; margin-top: 0; }
.case-summary { padding: 18px 26px 0; font-size: 14px; color: var(--text-secondary); flex-grow: 1; }
.case-metrics { display: flex; gap: 12px; flex-wrap: wrap; padding: 18px 26px 24px; }
.case-fix { padding: 0 26px; font-size: 14px; color: var(--text-secondary); line-height: 1.7; }
.case-fix b { color: var(--primary); font-weight: 700; margin-right: 4px; }
.case-metric {
  display: inline-flex; flex-direction: column; gap: 2px;
  padding: 10px 14px; border-radius: var(--radius-sm);
  background: var(--bg-soft); border: 1px dashed var(--border-strong);
}
.case-metric b { font-family: var(--mono-stack); font-size: 15px; font-weight: 700; color: var(--primary); }
.case-metric em { font-style: normal; font-size: 12px; color: var(--text-secondary); }
@media (max-width: 900px) {
  .case-grid { grid-template-columns: 1fr; gap: 16px; }
}
@media (max-width: 640px) {
  .case-head { padding: 18px 18px 14px; }
  .case-head h3 { font-size: 17px; }
  .case-summary, .case-fix { padding-left: 18px; padding-right: 18px; }
  .case-metrics { padding: 14px 18px 20px; }
}

/* 模型徽章 */
.model-badges { display: flex; flex-wrap: wrap; justify-content: center; gap: 12px; }
.model-badge { font-size: 14px; font-weight: 600; color: var(--text); background: #fff; border: 1px solid var(--border); border-radius: 999px; padding: 8px 20px; }

/* ---------- 技术动态文章 ---------- */
.article-card { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; }
.article-head { padding: 26px 30px 20px; border-bottom: 1px solid var(--border); background: var(--bg-soft); display: flex; justify-content: space-between; align-items: center; gap: 16px; flex-wrap: wrap; }
.article-head h3 { font-size: 21px; font-weight: 700; }
.article-head .meta { font-size: 13px; color: var(--text-secondary); }
.article-body { padding: 26px 30px 30px; }
.article-body h4 { font-size: 17px; font-weight: 700; margin: 26px 0 12px; padding-left: 12px; border-left: 3px solid var(--primary); }
.article-body h4:first-child { margin-top: 0; }
.article-body p { font-size: 15px; color: var(--text-secondary); margin-bottom: 12px; }
.article-body p strong, .article-body li strong { color: var(--text); }
.article-body ul, .article-body ol { margin: 0 0 12px 4px; }
.article-body li { font-size: 15px; color: var(--text-secondary); padding: 4px 0 4px 4px; }

/* 技术动态文章列表条目（左封面 + 右标题/摘要/日期） */
.kb-list { display: grid; gap: 20px; }
.kb-item {
  display: grid; grid-template-columns: 240px 1fr; gap: 24px; align-items: stretch;
  background: #fff; border: 1px solid var(--border); border-radius: var(--radius);
  overflow: hidden; transition: transform .25s, box-shadow .25s, border-color .25s;
}
.kb-item:hover { transform: translateY(-3px); box-shadow: var(--shadow-hover); border-color: var(--border-strong); }
.kb-cover {
  display: flex; align-items: center; justify-content: center;
  background: #fff;
  border-right: 1px solid var(--border); min-height: 168px;
  overflow: hidden; padding: 14px;
}
.kb-cover img {
  width: 132px; height: 132px; object-fit: contain;
  border-radius: 0;
  box-shadow: none;
  background: transparent;
  transition: transform .3s;
}
.kb-item:hover .kb-cover img { transform: scale(1.04); }
.kb-cover svg { width: 46px; height: 46px; color: var(--primary); opacity: .85; transition: transform .3s, opacity .3s; }
.kb-item:hover .kb-cover svg { transform: scale(1.06); opacity: 1; }
.kb-body { padding: 22px 26px 20px 0; display: flex; flex-direction: column; }
.kb-body h3 { font-size: 19px; font-weight: 700; line-height: 1.4; }
.kb-body h3 a { color: var(--text); }
.kb-body h3 a:hover { color: var(--primary); }
.kb-body .kb-summary { font-size: 14.5px; color: var(--text-secondary); margin: 10px 0 14px; line-height: 1.7; }
.kb-meta { display: flex; align-items: center; gap: 12px; font-size: 12.5px; color: var(--text-secondary); margin-top: auto; }
.kb-meta .kb-tag { color: var(--primary); background: var(--primary-soft); border-radius: 999px; padding: 2px 10px; }
.kb-meta .kb-read { margin-left: auto; color: var(--primary); font-weight: 600; }
@media (max-width: 640px) {
  .kb-item { grid-template-columns: 1fr; }
  .kb-cover { min-height: 160px; border-right: none; border-bottom: 1px solid var(--border); }
  .kb-body { padding: 18px 20px; }
}

/* 列表分页（技术文章 / 新闻列表复用） */
.pagination {
  display: flex; flex-wrap: wrap; align-items: center; justify-content: center;
  gap: 10px 16px; margin-top: 36px; padding-top: 8px;
}
.pagination[hidden] { display: none !important; }
.pagination-info {
  font-size: 13px; color: var(--text-tertiary); margin-right: 4px;
}
.pagination-controls {
  display: flex; flex-wrap: wrap; align-items: center; justify-content: center; gap: 6px;
}
.pagination-btn {
  min-width: 36px; height: 36px; padding: 0 12px;
  display: inline-flex; align-items: center; justify-content: center;
  font-size: 14px; font-weight: 500; font-family: inherit; line-height: 1;
  color: var(--text-secondary); background: #fff;
  border: 1px solid var(--border); border-radius: var(--radius-sm);
  cursor: pointer; transition: color .2s, background .2s, border-color .2s;
}
.pagination-btn:hover:not(:disabled):not(.is-active) {
  color: var(--primary); border-color: var(--primary); background: var(--primary-soft);
}
.pagination-btn.is-active {
  color: #fff; background: var(--primary); border-color: var(--primary); font-weight: 600;
  cursor: default;
}
.pagination-btn:disabled {
  opacity: .4; cursor: not-allowed;
}
.pagination-btn.is-nav { min-width: 72px; padding: 0 14px; }
.pagination-ellipsis {
  min-width: 28px; text-align: center; color: var(--text-tertiary); font-size: 14px;
  user-select: none;
}

/* ---------- 产品矩阵（platform hub） ---------- */
.product-matrix {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 8px;
}
.product-matrix-card {
  display: flex; flex-direction: column; gap: 14px;
  background: #fff; border: 1px solid var(--border); border-radius: var(--radius);
  padding: 22px 22px 20px; text-decoration: none; color: inherit;
  transition: transform .25s, box-shadow .25s, border-color .25s;
}
.product-matrix-card:hover {
  transform: translateY(-3px); box-shadow: var(--shadow-hover); border-color: var(--border-strong);
  color: inherit;
}
.product-matrix-card .pm-thumb {
  width: 64px; height: 64px; border-radius: var(--radius-sm); overflow: hidden;
  background: var(--bg-soft); border: 1px solid var(--border);
}
.product-matrix-card .pm-thumb img { width: 100%; height: 100%; object-fit: cover; display: block; }
.product-matrix-card h3 { font-size: 18px; font-weight: 700; color: var(--ink); }
.product-matrix-card p { font-size: 14px; color: var(--text-secondary); line-height: 1.65; flex: 1; }
.product-matrix-card .pm-link {
  font-size: 13.5px; font-weight: 600; color: var(--primary); margin-top: 4px;
}
@media (max-width: 900px) {
  .product-matrix { grid-template-columns: 1fr; }
}

/* ---------- 产品详情页（全宽铺开，对齐 platform 版式） ---------- */
.product-page .page-hero {
  background:
    radial-gradient(ellipse 80% 60% at 12% 20%, rgba(198,83,26,.12), transparent 55%),
    radial-gradient(ellipse 70% 50% at 88% 10%, rgba(26,74,90,.08), transparent 50%),
    linear-gradient(180deg, #F0EBE3 0%, var(--bg) 100%);
}
.product-page.is-cool .page-hero {
  background:
    radial-gradient(ellipse 80% 60% at 10% 15%, rgba(26,74,90,.14), transparent 55%),
    radial-gradient(ellipse 60% 50% at 90% 20%, rgba(198,83,26,.08), transparent 50%),
    linear-gradient(180deg, #E8EEF0 0%, var(--bg) 100%);
}
.product-page .page-hero .breadcrumb {
  display: flex; flex-wrap: wrap; align-items: center; justify-content: center;
  margin-bottom: 18px; padding-top: 0;
}
.product-page .page-hero-actions {
  display: flex; gap: 12px; flex-wrap: wrap; justify-content: center; margin-top: 22px;
}

.prod-hero-visual {
  margin-top: 28px; border-radius: var(--radius-lg); overflow: hidden;
  border: 1px solid var(--border); box-shadow: var(--shadow-card); line-height: 0;
}
.prod-hero-visual img {
  display: block; width: 100%; height: auto;
  max-height: none; aspect-ratio: 16 / 9; object-fit: cover; object-position: center;
}
@media (max-width: 768px) {
  .prod-hero-visual img { aspect-ratio: 16 / 10; }
}

.prod-showcase {
  display: grid; grid-template-columns: 1.05fr .95fr; gap: 48px; align-items: center;
}
.prod-showcase.reverse { grid-template-columns: .95fr 1.05fr; }
.prod-showcase.reverse .prod-showcase-media { order: 2; }
.prod-showcase-media {
  border-radius: var(--radius); overflow: hidden; border: 1px solid var(--border);
  background: linear-gradient(180deg, #FBF8F2 0%, #F4EFE5 100%); box-shadow: var(--shadow-card); line-height: 0;
  display: flex; align-items: center; justify-content: center;
  min-height: 320px;
}
.prod-showcase-media picture { display: block; width: 100%; line-height: 0; }
.prod-showcase-media img {
  display: block; width: 100%; height: auto; max-height: 560px;
  object-fit: contain;
}
.prod-showcase-copy .eyebrow { text-align: left; }
.prod-showcase-copy .eyebrow::after { display: none; }
.prod-showcase-copy h3 { font-size: 26px; font-weight: 700; margin: 8px 0 14px; line-height: 1.35; }
.prod-showcase-copy > p { font-size: 15.5px; color: var(--text-secondary); margin-bottom: 14px; }
.prod-showcase-copy ul { margin: 0; padding: 0; list-style: none; }
.prod-showcase-copy li {
  position: relative; padding: 8px 0 8px 18px; font-size: 15px; color: var(--text-secondary);
  border-bottom: 1px solid var(--line-soft);
}
.prod-showcase-copy li:last-child { border-bottom: 0; }
.prod-showcase-copy li::before {
  content: ""; position: absolute; left: 0; top: 16px;
  width: 7px; height: 7px; border-radius: 50%; background: var(--primary);
}

/* 场景全宽卡片（智引飞轮 demos）：图即主叙事，避免与图内文案重复堆叠 */
.scene-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  margin-bottom: 28px;
  transition: box-shadow .25s, transform .25s;
}
.scene-card:last-child { margin-bottom: 0; }
.scene-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-2px); }
.scene-card-head {
  display: flex; flex-wrap: wrap; align-items: baseline; gap: 10px 20px;
  padding: 22px 28px 18px;
  border-bottom: 1px solid var(--line-soft);
  background: linear-gradient(180deg, #FFFCFA 0%, #fff 100%);
}
.scene-card-label {
  display: inline-flex; align-items: center; gap: 10px; flex-shrink: 0;
}
.scene-card-label .pm-idx {
  flex-shrink: 0; min-width: 40px; height: 40px; padding: 0 10px;
  display: inline-flex; align-items: center; justify-content: center;
  font-family: var(--mono-stack); font-size: 16px; font-weight: 800;
  color: #fff; background: var(--primary); border-radius: 10px; line-height: 1;
  box-shadow: 0 6px 14px -6px rgba(198, 83, 26, .55);
}
.scene-card-label .pm-dot {
  width: 5px; height: 5px; border-radius: 50%; background: var(--primary); opacity: .55;
}
.scene-card-label .pm-name {
  font-size: 20px; font-weight: 800; color: var(--ink); letter-spacing: .01em;
}
.scene-card-quote {
  flex: 1 1 280px; margin: 0;
  font-size: 14.5px; line-height: 1.6; color: var(--text-secondary);
}
.scene-card-visual {
  line-height: 0;
  background: linear-gradient(180deg, #F7F3EC 0%, #F0EBE3 100%);
  padding: 20px 24px 28px;
  display: flex; justify-content: center; align-items: center;
}
.scene-card-visual picture {
  display: block; width: 100%; max-width: 820px; line-height: 0;
  border-radius: var(--radius); overflow: hidden;
  box-shadow: 0 8px 24px -12px rgba(26, 23, 20, .18);
  border: 1px solid rgba(26, 23, 20, .06);
}
.scene-card-visual img {
  display: block; width: 100%; height: auto;
  max-width: 820px;
  object-fit: contain;
}
@media (max-width: 720px) {
  .scene-card-head { padding: 18px 18px 14px; }
  .scene-card-label .pm-name { font-size: 17px; }
  .scene-card-quote { font-size: 13.5px; }
  .scene-card-visual { padding: 14px 14px 18px; }
}

/* 场景图板：原图自带完整叙事，仅保留序号角标，避免标题/导语重复 */
.scene-stack { display: grid; gap: 36px; max-width: 1080px; margin: 0 auto; }
.scene-shot {
  position: relative; margin: 0;
  border-radius: var(--radius-lg);
  background: transparent;
}
.scene-shot-badge {
  display: inline-flex; align-items: center; gap: 10px;
  margin: 0 0 14px;
  padding: 0;
}
.scene-shot-badge .pm-idx {
  flex-shrink: 0; min-width: 36px; height: 36px; padding: 0 8px;
  display: inline-flex; align-items: center; justify-content: center;
  font-family: var(--mono-stack); font-size: 15px; font-weight: 800;
  color: #fff; background: var(--primary); border-radius: 9px; line-height: 1;
  box-shadow: 0 6px 14px -6px rgba(198, 83, 26, .5);
}
.scene-shot-badge .pm-dot {
  width: 5px; height: 5px; border-radius: 50%; background: var(--primary); opacity: .5;
}
.scene-shot-badge .pm-name {
  font-size: 18px; font-weight: 800; color: var(--ink);
}
.scene-shot-frame {
  border-radius: var(--radius-lg); overflow: hidden;
  border: 1px solid var(--border);
  background: #fff;
  box-shadow: var(--shadow-card);
  line-height: 0;
}
.scene-shot-frame picture { display: block; line-height: 0; }
.scene-shot-frame img {
  display: block; width: 100%; height: auto;
  /* 源图 1360 宽：展示宽度不超过源图，避免发糊 */
  max-width: 1080px;
}
.scene-shot:hover .scene-shot-frame {
  box-shadow: var(--shadow-hover);
}
@media (max-width: 720px) {
  .scene-stack { gap: 28px; }
  .scene-shot-badge .pm-name { font-size: 16px; }
}

.prod-pain-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px;
}
.prod-pain {
  background: #fff; border: 1px solid var(--border); border-radius: var(--radius);
  padding: 22px 20px; transition: transform .25s, box-shadow .25s;
}
.prod-pain:hover { transform: translateY(-3px); box-shadow: var(--shadow-hover); }
.prod-pain .no {
  display: inline-flex; align-items: center; justify-content: center;
  min-width: 40px; height: 40px; padding: 0 10px; margin-bottom: 14px;
  font-family: var(--mono-stack); font-size: 16px; font-weight: 800;
  color: #fff; background: var(--primary); border-radius: 10px; line-height: 1;
  letter-spacing: .02em;
  box-shadow: 0 6px 14px -6px rgba(198, 83, 26, .5);
}
.prod-pain strong { display: block; font-size: 17px; font-weight: 800; color: var(--ink); margin-bottom: 8px; }
.prod-pain p { font-size: 13.5px; color: var(--text-secondary); margin: 0; line-height: 1.65; }

.prod-module-grid {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px;
}
.prod-module {
  position: relative; overflow: hidden;
  background: #fff; border: 1px solid var(--border); border-radius: var(--radius);
  padding: 28px 26px 24px;
  transition: transform .25s, box-shadow .25s, border-color .25s;
}
.prod-module:hover {
  transform: translateY(-3px); box-shadow: var(--shadow-hover); border-color: var(--border-strong);
}
.prod-module .pm-no {
  display: inline-flex; align-items: center; gap: 10px;
  margin-bottom: 16px; max-width: 100%;
}
.prod-module .pm-idx {
  flex-shrink: 0;
  min-width: 40px; height: 40px; padding: 0 10px;
  display: inline-flex; align-items: center; justify-content: center;
  font-family: var(--mono-stack); font-size: 16px; font-weight: 800;
  color: #fff; background: var(--primary); border-radius: 10px;
  letter-spacing: .02em; line-height: 1;
  box-shadow: 0 6px 14px -6px rgba(198, 83, 26, .55);
}
.prod-module .pm-name {
  font-size: 18px; font-weight: 800; color: var(--ink);
  letter-spacing: .02em; line-height: 1.2;
}
.prod-module .pm-dot {
  width: 5px; height: 5px; border-radius: 50%;
  background: var(--primary); opacity: .55; flex-shrink: 0;
}
.prod-module h3 {
  font-size: 24px; font-weight: 800; color: var(--ink); line-height: 1.35;
  letter-spacing: -.01em; margin-bottom: 12px;
}
.prod-module p { font-size: 15px; color: var(--text-secondary); margin: 0; line-height: 1.75; }
@media (max-width: 640px) {
  .prod-module h3 { font-size: 20px; }
}
.prod-module::after {
  content: ""; position: absolute; right: -24px; top: -24px;
  width: 100px; height: 100px; border-radius: 50%;
  background: radial-gradient(circle, var(--primary-soft), transparent 70%);
  pointer-events: none;
}

.prod-cap-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px;
}
.prod-cap {
  background: #fff; border: 1px solid var(--border); border-radius: var(--radius);
  padding: 24px 18px; text-align: center;
  transition: transform .25s, box-shadow .25s;
}
.prod-cap:hover { transform: translateY(-3px); box-shadow: var(--shadow-hover); }
.prod-cap .icon {
  width: 44px; height: 44px; margin: 0 auto 12px; color: var(--primary);
  display: flex; align-items: center; justify-content: center;
  background: var(--primary-soft); border-radius: 12px;
}
.prod-cap .icon svg { width: 22px; height: 22px; }
.prod-cap strong { display: block; font-size: 15.5px; margin-bottom: 8px; }
.prod-cap span { font-size: 13px; color: var(--text-secondary); line-height: 1.55; }

.prod-metric-row {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px;
}
.prod-metric {
  background: var(--cool-ink); color: #fff; border-radius: var(--radius);
  padding: 28px 22px; text-align: center;
}
.prod-metric b {
  display: block; font-family: var(--mono-stack); font-size: 28px; font-weight: 700;
  color: var(--fresh-amber); margin-bottom: 8px;
}
.prod-metric span { font-size: 13.5px; color: rgba(255,255,255,.78); line-height: 1.5; }

.prod-feature-list {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px;
}
.prod-feature {
  display: flex; gap: 14px; align-items: flex-start;
  background: #fff; border: 1px solid var(--border); border-radius: var(--radius);
  padding: 20px 18px;
}
.prod-feature .dot {
  width: 10px; height: 10px; border-radius: 50%; background: var(--primary);
  margin-top: 6px; flex-shrink: 0; box-shadow: 0 0 0 4px var(--primary-soft);
}
.prod-feature strong { display: block; font-size: 15.5px; margin-bottom: 6px; }
.prod-feature p { font-size: 14px; color: var(--text-secondary); margin: 0; line-height: 1.6; }

.prod-note {
  margin-top: 20px; padding: 14px 16px; font-size: 13px; color: var(--text-secondary);
  background: #fff; border: 1px solid var(--border); border-left: 3px solid var(--border-strong);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

@media (max-width: 1000px) {
  .prod-pain-grid, .prod-cap-grid { grid-template-columns: repeat(2, 1fr); }
  .prod-showcase, .prod-showcase.reverse { grid-template-columns: 1fr; gap: 24px; }
  .prod-showcase.reverse .prod-showcase-media { order: 0; }
}
@media (max-width: 640px) {
  .prod-pain-grid, .prod-module-grid, .prod-cap-grid,
  .prod-metric-row, .prod-feature-list { grid-template-columns: 1fr; }
}

/* 新闻动态空态（正式新闻发布后用 .kb-item 条目替换本块） */
.empty-state {
  max-width: 640px; margin: 0 auto; padding: 56px 36px; text-align: center;
  background: #fff; border: 1px dashed var(--border-strong); border-radius: var(--radius-lg);
}
.empty-state .es-icon { width: 52px; height: 52px; margin: 0 auto 18px; color: var(--primary); opacity: .75; }
.empty-state .es-icon svg { width: 100%; height: 100%; }
.empty-state h3 { font-size: 20px; font-weight: 700; color: var(--ink); }
.empty-state p { font-size: 14.5px; color: var(--text-secondary); line-height: 1.8; margin: 12px 0 22px; }

/* 文章详情页正文排版（.article-body 复用） */
.article-page .article-body { padding: 30px 34px 36px; }

/* 13 层 Prompt 列表 */
.prompt-layers { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; counter-reset: layer; }
.prompt-layer {
  display: flex; gap: 12px; align-items: center;
  background: var(--bg-soft); border: 1px solid var(--border);
  border-radius: var(--radius-sm); padding: 12px 16px; font-size: 14px;
}
.prompt-layer .no { width: 26px; height: 26px; border-radius: 50%; flex-shrink: 0; background: #fff; border: 1px solid var(--border-strong); color: var(--text-secondary); font-size: 12px; font-weight: 700; display: flex; align-items: center; justify-content: center; }
.prompt-layer.dev .no { background: var(--primary); border-color: var(--primary); color: #fff; }
.prompt-layer.dev .tag { font-size: 11px; color: var(--primary); background: var(--primary-soft); border-radius: 999px; padding: 1px 8px; margin-left: auto; flex-shrink: 0; }

/* ---------- 详情页 Hero ---------- */
.agent-hero {
  position: relative; overflow: hidden; padding: 64px 0 52px;
  background: linear-gradient(180deg, #F3EFE8 0%, var(--bg) 100%);
  border-bottom: 1px solid var(--border);
}
.agent-hero-inner { display: flex; gap: 28px; align-items: flex-start; max-width: 980px; }
.agent-hero-icon {
  width: 112px; height: 112px; border-radius: 0; flex-shrink: 0; font-size: 44px;
  display: flex; align-items: center; justify-content: center;
  background: transparent;
  border: none;
  box-shadow: none;
  overflow: visible; padding: 0;
}
.agent-hero-icon svg { width: 40px; height: 40px; color: inherit; }
.agent-hero-icon img {
  width: 100%; height: 100%; object-fit: contain; display: block;
  background: transparent;
}
.agent-hero-info h1 { font-size: 36px; font-weight: 700; font-family: var(--font-serif); line-height: 1.3; }
.agent-hero-info .en { font-size: 14px; color: var(--text-secondary); margin-top: 2px; }
.agent-hero-info .tagline { font-size: 17px; color: var(--text); margin-top: 12px; }
.agent-hero-meta { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 16px; }
.agent-hero-meta span { font-size: 12.5px; color: var(--text-secondary); background: #fff; border: 1px solid var(--border); padding: 3px 12px; border-radius: 999px; }
.agent-hero-actions { margin-top: 24px; display: flex; gap: 14px; flex-wrap: wrap; }

/* 相关智能体 */
.related-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.related-card {
  display: flex; align-items: center; gap: 14px;
  background: #fff; border: 1px solid var(--border); border-radius: var(--radius);
  padding: 18px 20px; transition: transform .2s, box-shadow .2s;
}
.related-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-hover); }
.related-card .agent-icon { width: 44px; height: 44px; font-size: 22px; }
.related-card .r-name { font-size: 15.5px; font-weight: 600; color: var(--text); }
.related-card .r-desc { font-size: 12.5px; color: var(--text-secondary); }

/* ---------- 页脚 ---------- */
.site-footer {
  position: relative;
  background: linear-gradient(165deg, #1A1714 0%, #2A241E 55%, #14110E 100%);
  color: rgba(255, 255, 255, .65); margin-top: 96px;
}
/* 深底页脚中涟漪 mark 转白色 */
.site-footer .logo { color: #fff; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; padding: 56px 0 40px; }
.footer-brand .logo-text { color: #fff; }
.footer-brand .logo-text strong { font-size: 22px; }
.footer-brand p { margin-top: 12px; font-size: 13.5px; line-height: 1.8; max-width: 320px; }
.footer-col h4 { color: #fff; font-size: 15px; font-weight: 600; margin-bottom: 18px; }
.footer-col a { display: block; color: rgba(255, 255, 255, .65); font-size: 13.5px; padding: 5px 0; }
.footer-col a:hover { color: #fff; }
.footer-bottom {
  background: rgba(5, 30, 50, .22);
  padding: 16px 0 18px;
  font-size: 12px;
  color: rgba(255, 255, 255, .42);
}
.footer-legal {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 8px 28px;
  text-align: center;
}
.footer-legal a {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  color: rgba(255, 255, 255, .45);
  text-decoration: none;
  transition: color .2s;
}
.footer-legal a:hover { color: rgba(255, 255, 255, .75); }
.footer-legal .gongan-icon { flex-shrink: 0; display: block; }

/* ---------- 回到顶部 ---------- */
.back-top {
  position: fixed; right: 28px; bottom: 32px; z-index: 90;
  width: 44px; height: 44px; border-radius: 50%; border: none;
  background: var(--primary); color: #fff; font-size: 18px;
  box-shadow: var(--shadow-hover); opacity: 0; visibility: hidden;
  transform: translateY(10px); transition: all .3s;
}
.back-top.is-visible { opacity: 1; visibility: visible; transform: translateY(0); }
.back-top:hover { background: var(--primary-hover); }

/* ---------- 入场动画 ---------- */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .6s ease, transform .6s ease; }
.reveal.is-visible { opacity: 1; transform: translateY(0); }
/* 无 JS 环境兜底：页面声明 <html class="no-js">，JS 启动后移除 */
html.no-js .reveal { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
  /* Hero 入场/浮动动画停用、直接呈现静态终态；mockup 的 SMIL 属内容动画，保持运行不暂停 */
  .hero-bg, .hero-left, .hero-right, .hero-badge { animation: none; }
}

/* ---------- 响应式 ---------- */
@media (max-width: 1080px) {
  .cap-grid { grid-template-columns: repeat(2, 1fr); }
  .agent-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
}

@media (max-width: 900px) {
  .nav-toggle { display: flex; }
  .main-nav {
    position: fixed; top: var(--header-h); left: 0; right: 0;
    flex-direction: column; align-items: stretch; gap: 4px;
    background: #fff; border-bottom: 1px solid var(--border);
    padding: 12px 24px 20px; box-shadow: var(--shadow-header);
    transform: translateY(-8px); opacity: 0; visibility: hidden;
    transition: all .25s; margin-left: 0;
  }
  .main-nav.is-open { transform: translateY(0); opacity: 1; visibility: visible; }
  .nav-item > a { padding: 12px 14px; justify-content: space-between; touch-action: manipulation; }
  .nav-item:has(.sub-nav) > a::after { transform: rotate(45deg) translateY(-2px); }
  .nav-item.is-open > a::after { transform: rotate(-135deg) translateY(1px); }
  /* 移动端菜单为纵向堆叠，去掉横向下划线，仅保留变色加粗 */
  .nav-item > a::before { display: none; }
  .nav-item > a.active { color: var(--primary); font-weight: 600; }
  .sub-nav {
    position: static; transform: none; box-shadow: none; border: none; border-left: 2px solid var(--primary-soft);
    padding: 0 0 0 12px; margin: 0 0 6px 14px; opacity: 1; visibility: visible; display: none !important;
    background: transparent; min-width: 0; left: auto; top: auto;
  }
  /* 移动端禁止 :hover / :focus-within 误开二级，只认 .is-open */
  .nav-item.is-open > .sub-nav { display: block !important; }
  .sub-nav a { white-space: normal; padding: 10px 12px; touch-action: manipulation; }
  .header-cta { display: none; }
  .hero-title { font-size: 38px; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .two-col { grid-template-columns: 1fr; }
  .intro-shell {
    grid-template-columns: 1fr;
    row-gap: 0;
  }
  .intro-head { margin-bottom: 24px; }
  .intro-aside {
    grid-column: 1;
    grid-row: auto;
    margin-top: 32px;
  }
  .contact-qr-layout { grid-template-columns: 1fr; justify-items: center; text-align: left; }
  .contact-qr-box { margin: 0 auto; }
  .pain-grid { grid-template-columns: 1fr; }
  .prompt-layers { grid-template-columns: 1fr; }
  .agent-hero-inner { flex-direction: column; }
  .related-grid { grid-template-columns: 1fr; }
}

/* 手机开「访问电脑版」时视口会被撑宽，媒体查询失效；靠 html.is-touch-nav 强制移动端导航 */
html.is-touch-nav .nav-toggle { display: flex !important; }
html.is-touch-nav .header-cta { display: none !important; }
html.is-touch-nav .main-nav {
  position: fixed; top: var(--header-h); left: 0; right: 0;
  flex-direction: column; align-items: stretch; gap: 4px;
  background: #fff; border-bottom: 1px solid var(--border);
  padding: 12px 24px 20px; box-shadow: var(--shadow-header);
  transform: translateY(-8px); opacity: 0; visibility: hidden;
  transition: all .25s; margin-left: 0;
  z-index: 120;
}
html.is-touch-nav .main-nav.is-open { transform: translateY(0); opacity: 1; visibility: visible; }
html.is-touch-nav .nav-item > a {
  padding: 12px 14px; justify-content: space-between; touch-action: manipulation;
}
html.is-touch-nav .nav-item > a::before { display: none; }
html.is-touch-nav .nav-item:has(.sub-nav) > a::after { transform: rotate(45deg) translateY(-2px); }
html.is-touch-nav .nav-item.is-open > a::after { transform: rotate(-135deg) translateY(1px); }
html.is-touch-nav .sub-nav {
  position: static; transform: none; box-shadow: none; border: none;
  border-left: 2px solid var(--primary-soft);
  padding: 0 0 0 12px; margin: 0 0 6px 14px;
  opacity: 1; visibility: visible; display: none !important;
  background: transparent; min-width: 0; left: auto; top: auto;
}
html.is-touch-nav .nav-item.is-open > .sub-nav { display: block !important; }
html.is-touch-nav .sub-nav a { white-space: normal; padding: 10px 12px; touch-action: manipulation; }
/* 触控机「访问电脑版」时视口很宽，媒体查询不生效，落地场景强制单列 */
html.is-touch-nav .case-grid {
  grid-template-columns: 1fr !important;
  gap: 16px;
}

@media (max-width: 640px) {
  .section { padding: 56px 0; }
  .section-title { font-size: 28px; }
  .page-hero h1, .agent-hero-info h1 { font-size: 30px; }
  .hero { padding: 64px 0 56px; }
  .hero-title { font-size: 32px; }
  .hero-trust { gap: 20px; }
  /* 小屏：徽章与信任条数字重复且易遮挡动画，隐藏 */
  .hero-badges { display: none; }
  .cap-grid, .cap-grid.cols-3 { grid-template-columns: 1fr; }
  .agent-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .form-grid { grid-template-columns: 1fr; }
  .cta-band { padding: 40px 24px; }
  .cta-band h2 { font-size: 24px; }
  .footer-grid { grid-template-columns: 1fr; }
  .arch-split { flex-direction: column; }
  /* 移动端按钮放大：保证正常点击体验 */
  .btn { padding: 13px 26px; font-size: 16px; min-height: 48px; }
  .btn-sm { padding: 10px 18px; font-size: 14px; min-height: 42px; }
  .hero-actions .btn { width: 100%; max-width: 320px; }
  .container { padding: 0 18px; }
}