/* ============================================================
   安徽智米杰科技有限公司 · 创友聚平台 官网样式（科技感升级版）
   设计语言：深空蓝 × 电光紫渐变、玻璃拟态、辉光、粒子网络
   纯静态、无外部依赖、响应式、支持 prefers-reduced-motion
   ============================================================ */

:root {
  /* 品牌色阶（深空蓝 → 电光蓝 → 紫） */
  --navy-950: #040d1f;
  --navy-900: #071532;
  --navy-850: #0a1c3d;
  --navy-800: #0e2547;
  --navy-700: #14345f;
  --brand-700: #1446b0;
  --brand-600: #1e5ad8;   /* 主色 */
  --brand-500: #3b7bf0;
  --brand-400: #6da3f6;
  --violet-500: #7c5cf6;  /* 电光紫（科技感渐变端） */
  --violet-400: #9d86f9;
  --cyan-400: #4cc9f0;    /* 数据感点缀 */
  --brand-200: #b9d0f8;
  --brand-100: #e3edfc;
  --brand-50: #f2f7ff;

  /* 暖色点缀（仅用于 CTA / 关键强调） */
  --accent-400: #ff9e4d;
  --accent-500: #ff7a1a;
  --accent-ink: #a34e08;

  /* 文本与中性色 */
  --ink-900: #0d1a30;
  --ink-700: #2a3a5c;
  --ink-500: #55658a;
  --ink-400: #5f6f96;
  --line: #e2e8f4;
  --line-soft: #eef2f9;

  --bg: #ffffff;
  --bg-soft: #f4f8fe;

  /* 形状与阴影（含辉光） */
  --radius-sm: 10px;
  --radius: 16px;
  --radius-lg: 22px;
  --shadow-sm: 0 1px 2px rgba(13, 26, 48, 0.06), 0 2px 8px rgba(13, 26, 48, 0.05);
  --shadow-md: 0 4px 12px rgba(13, 26, 48, 0.08), 0 12px 32px rgba(13, 26, 48, 0.09);
  --shadow-lg: 0 8px 24px rgba(13, 26, 48, 0.10), 0 24px 56px rgba(13, 26, 48, 0.13);
  --glow-blue: 0 0 24px rgba(30, 90, 216, 0.35);
  --glow-violet: 0 0 28px rgba(124, 92, 246, 0.35);
  --glow-orange: 0 6px 22px rgba(255, 122, 26, 0.4);

  /* 布局 */
  --container: 1180px;
  --header-h: 74px;

  /* 字体 */
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", "Source Han Sans SC",
    "Helvetica Neue", Arial, sans-serif;

  /* 科技渐变 */
  --grad-tech: linear-gradient(100deg, var(--brand-500) 0%, var(--violet-500) 100%);
  --grad-deep: linear-gradient(135deg, var(--navy-900) 0%, var(--navy-800) 55%, #16345e 100%);
}

/* ---------- 基础 ---------- */
*, *::before, *::after { box-sizing: border-box; }

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

body {
  margin: 0;
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.75;
  color: var(--ink-700);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

h1, h2, h3, h4 {
  color: var(--ink-900);
  line-height: 1.32;
  margin: 0 0 0.6em;
  font-weight: 700;
  letter-spacing: 0.01em;
}

p { margin: 0 0 1em; }
img, svg, canvas { max-width: 100%; display: block; }
a { color: var(--brand-600); text-decoration: none; }
a:hover { color: var(--brand-700); }
ul { margin: 0; padding: 0; list-style: none; }
strong { color: var(--ink-900); }

:focus-visible {
  outline: 3px solid var(--brand-500);
  outline-offset: 2px;
  border-radius: 4px;
}

::selection { background: rgba(30, 90, 216, 0.18); }

.skip-link {
  position: absolute;
  left: 16px;
  top: -48px;
  z-index: 200;
  background: var(--brand-600);
  color: #fff;
  padding: 10px 18px;
  border-radius: 0 0 10px 10px;
  font-weight: 600;
  transition: top 0.2s ease;
}
.skip-link:focus { top: 0; color: #fff; }

.container {
  width: min(var(--container), 100% - 48px);
  margin-inline: auto;
}

/* 渐变文字工具类 */
.grad-text {
  background: linear-gradient(100deg, var(--brand-500) 10%, var(--violet-500) 90%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* ---------- 按钮 ---------- */
.btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 30px;
  border-radius: 999px;
  font-size: 16px;
  font-weight: 600;
  font-family: inherit;
  line-height: 1.4;
  cursor: pointer;
  border: 2px solid transparent;
  transition: transform 0.18s ease, box-shadow 0.18s ease, background 0.18s ease, color 0.18s ease, border-color 0.18s ease;
  white-space: nowrap;
  overflow: hidden;
  isolation: isolate;
}
.btn:active { transform: translateY(1px) scale(0.99); }

/* 光泽扫过微交互 */
.btn::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(105deg, transparent 40%, rgba(255, 255, 255, 0.35) 50%, transparent 60%);
  transform: translateX(-120%);
  transition: transform 0.6s ease;
  z-index: -1;
}
.btn:hover::after { transform: translateX(120%); }

.btn-primary {
  background: linear-gradient(100deg, var(--brand-600), var(--brand-500));
  color: #fff;
  box-shadow: 0 8px 24px rgba(30, 90, 216, 0.38), inset 0 1px 0 rgba(255, 255, 255, 0.25);
}
.btn-primary:hover {
  box-shadow: 0 10px 32px rgba(30, 90, 216, 0.5), var(--glow-blue), inset 0 1px 0 rgba(255, 255, 255, 0.25);
  transform: translateY(-2px);
  color: #fff;
}

.btn-accent {
  background: linear-gradient(100deg, var(--accent-500), var(--accent-400));
  color: #3d1a02;
  box-shadow: var(--glow-orange), inset 0 1px 0 rgba(255, 255, 255, 0.3);
}
.btn-accent:hover {
  box-shadow: 0 10px 34px rgba(255, 122, 26, 0.55), inset 0 1px 0 rgba(255, 255, 255, 0.3);
  transform: translateY(-2px);
  color: #3d1a02;
}

.btn-outline {
  background: rgba(255, 255, 255, 0.85);
  border-color: var(--brand-200);
  color: var(--brand-700);
  backdrop-filter: blur(6px);
}
.btn-outline:hover {
  border-color: var(--brand-500);
  background: #fff;
  color: var(--brand-700);
  box-shadow: 0 6px 20px rgba(30, 90, 216, 0.18);
  transform: translateY(-2px);
}

.btn-ghost-light {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.55);
  color: #fff;
  backdrop-filter: blur(6px);
}
.btn-ghost-light:hover { background: rgba(255, 255, 255, 0.2); color: #fff; }

.btn-sm { padding: 9px 22px; font-size: 14.5px; }

/* ---------- 顶部导航（玻璃拟态） ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.78);
  backdrop-filter: blur(16px) saturate(1.6);
  -webkit-backdrop-filter: blur(16px) saturate(1.6);
  border-bottom: 1px solid transparent;
  transition: border-color 0.25s ease, box-shadow 0.25s ease, background 0.25s ease;
}
.site-header.is-scrolled {
  background: rgba(255, 255, 255, 0.9);
  border-bottom-color: var(--line);
  box-shadow: 0 4px 24px rgba(13, 26, 48, 0.08);
}

.nav-wrap {
  height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--ink-900);
  flex-shrink: 0;
}
.brand:hover { color: var(--ink-900); }
.brand-mark {
  width: 44px;
  height: 44px;
  border-radius: 13px;
  flex-shrink: 0;
  box-shadow: 0 4px 14px rgba(30, 90, 216, 0.4), 0 0 0 1px rgba(255, 255, 255, 0.5) inset;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}
.brand:hover .brand-mark {
  transform: rotate(-4deg) scale(1.05);
  box-shadow: 0 6px 20px rgba(30, 90, 216, 0.55), var(--glow-violet);
}
.brand-text { display: flex; flex-direction: column; line-height: 1.25; }
.brand-name { font-size: 19.5px; font-weight: 800; letter-spacing: 0.02em; }
.brand-sub { font-size: 11px; color: var(--ink-500); letter-spacing: 0.06em; }

.site-nav ul { display: flex; align-items: center; gap: 6px; }
.site-nav a {
  position: relative;
  display: block;
  padding: 8px 17px;
  border-radius: 999px;
  color: var(--ink-700);
  font-weight: 500;
  font-size: 15.5px;
  transition: background 0.18s ease, color 0.18s ease, box-shadow 0.18s ease;
}
.site-nav a:hover { background: var(--brand-50); color: var(--brand-700); }
.site-nav a.active {
  background: linear-gradient(100deg, var(--brand-100), #ece4fd);
  color: var(--brand-700);
  font-weight: 600;
  box-shadow: inset 0 0 0 1px rgba(30, 90, 216, 0.18);
}

.nav-cta { display: flex; align-items: center; gap: 12px; }

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #fff;
  cursor: pointer;
  padding: 0;
  position: relative;
}
.nav-toggle span,
.nav-toggle span::before,
.nav-toggle span::after {
  position: absolute;
  left: 50%;
  width: 20px;
  height: 2px;
  background: var(--ink-900);
  border-radius: 2px;
  transform: translateX(-50%);
  transition: transform 0.2s ease, top 0.2s ease, opacity 0.15s ease;
}
.nav-toggle span { top: 50%; }
.nav-toggle span::before { content: ""; top: -6px; left: 0; transform: none; }
.nav-toggle span::after { content: ""; top: 6px; left: 0; transform: none; }
.nav-toggle[aria-expanded="true"] span { background: transparent; }
.nav-toggle[aria-expanded="true"] span::before { top: 0; transform: rotate(45deg); }
.nav-toggle[aria-expanded="true"] span::after { top: 0; transform: rotate(-45deg); }

/* ---------- Hero（首页） ---------- */
.hero {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(900px 520px at 85% -10%, rgba(124, 92, 246, 0.14), transparent 60%),
    radial-gradient(1000px 560px at -10% 0%, rgba(30, 90, 216, 0.16), transparent 55%),
    radial-gradient(600px 400px at 50% 110%, rgba(76, 201, 240, 0.10), transparent 60%),
    linear-gradient(180deg, #eef4fe 0%, #fff 100%);
  padding: 92px 0 104px;
}

/* 科技网格 */
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(30, 90, 216, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(30, 90, 216, 0.06) 1px, transparent 1px);
  background-size: 46px 46px;
  mask-image: radial-gradient(ellipse 85% 75% at 50% 28%, #000 30%, transparent 78%);
  -webkit-mask-image: radial-gradient(ellipse 85% 75% at 50% 28%, #000 30%, transparent 78%);
  pointer-events: none;
}

/* 粒子画布 */
.hero-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  pointer-events: none;
}

/* 漂浮光斑 */
.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(70px);
  pointer-events: none;
  z-index: 0;
}
.orb-a {
  width: 420px; height: 420px;
  top: -120px; right: -80px;
  background: radial-gradient(circle, rgba(124, 92, 246, 0.28), transparent 65%);
  animation: orb-float 14s ease-in-out infinite alternate;
}
.orb-b {
  width: 360px; height: 360px;
  bottom: -100px; left: -60px;
  background: radial-gradient(circle, rgba(76, 201, 240, 0.22), transparent 65%);
  animation: orb-float 18s ease-in-out infinite alternate-reverse;
}
.orb-c {
  width: 260px; height: 260px;
  top: 40%; left: 44%;
  background: radial-gradient(circle, rgba(255, 122, 26, 0.10), transparent 65%);
  animation: orb-float 22s ease-in-out infinite alternate;
}
@keyframes orb-float {
  from { transform: translate(0, 0) scale(1); }
  to { transform: translate(36px, 28px) scale(1.08); }
}

.hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 56px;
  align-items: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  background: rgba(255, 255, 255, 0.85);
  border: 1px solid var(--brand-200);
  color: var(--brand-700);
  font-size: 13.5px;
  font-weight: 600;
  padding: 8px 18px;
  border-radius: 999px;
  box-shadow: var(--shadow-sm), 0 0 20px rgba(30, 90, 216, 0.12);
  margin-bottom: 24px;
  backdrop-filter: blur(8px);
}
.hero-badge .dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--accent-500);
  box-shadow: 0 0 0 4px rgba(255, 122, 26, 0.18);
  animation: pulse-dot 2.2s ease-in-out infinite;
}
@keyframes pulse-dot {
  0%, 100% { box-shadow: 0 0 0 4px rgba(255, 122, 26, 0.18); }
  50% { box-shadow: 0 0 0 7px rgba(255, 122, 26, 0.06); }
}

.hero h1 {
  font-size: clamp(32px, 4.6vw, 54px);
  font-weight: 800;
  letter-spacing: 0.01em;
  margin-bottom: 22px;
}
.hero h1 .hl {
  background: linear-gradient(100deg, var(--brand-500) 10%, var(--violet-500) 60%, var(--brand-500) 90%);
  background-size: 200% 100%;
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  animation: grad-flow 6s ease-in-out infinite;
}
@keyframes grad-flow {
  0%, 100% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
}
.hero-sub {
  font-size: 17.5px;
  color: var(--ink-500);
  max-width: 34em;
  margin-bottom: 32px;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 36px; }

.hero-chips { display: flex; flex-wrap: wrap; gap: 10px; }
.chip {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 8px 16px;
  font-size: 13.5px;
  font-weight: 600;
  color: var(--ink-700);
  box-shadow: var(--shadow-sm);
  backdrop-filter: blur(8px);
  transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease;
}
.chip:hover {
  transform: translateY(-2px);
  border-color: var(--brand-200);
  box-shadow: 0 6px 18px rgba(30, 90, 216, 0.16);
}
.chip svg { color: var(--brand-600); flex-shrink: 0; }

.hero-visual {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: stretch;
}

/* ---------- 品牌 IP：骏牛 ---------- */
.hero-ip {
  position: relative;
  z-index: 3;
  align-self: flex-end;
  width: clamp(152px, 15vw, 206px);
  margin: 0 4px -52px 0;
  isolation: isolate;
}

/* 暖色光晕 */
.hero-ip .ip-halo {
  position: absolute;
  left: 50%;
  top: 44%;
  width: 138%;
  aspect-ratio: 1;
  transform: translate(-50%, -50%);
  background: radial-gradient(circle, rgba(255, 122, 26, 0.22), rgba(255, 122, 26, 0.07) 52%, transparent 70%);
  filter: blur(7px);
  z-index: -1;
  pointer-events: none;
}

.hero-ip .ip-img {
  display: block;
  width: 100%;
  height: auto;
  transform-origin: 52% 90%;
  filter: drop-shadow(0 16px 20px rgba(13, 26, 48, 0.18));
  animation: ip-run 1.7s cubic-bezier(0.45, 0, 0.55, 1) infinite;
  will-change: transform;
  user-select: none;
}
@keyframes ip-run {
  0%   { transform: translate3d(0, 0, 0) rotate(-1.2deg) scale(1); }
  35%  { transform: translate3d(-3px, -9px, 0) rotate(-2.7deg) scale(1.014); }
  55%  { transform: translate3d(0, 0, 0) rotate(-1.2deg) scale(1); }
  80%  { transform: translate3d(2px, -5px, 0) rotate(-0.2deg) scale(1.008); }
  100% { transform: translate3d(0, 0, 0) rotate(-1.2deg) scale(1); }
}

/* 脚下投影（随起跳收缩） */
.hero-ip .ip-shadow {
  position: absolute;
  left: 16%;
  right: 16%;
  bottom: 5%;
  height: 11px;
  border-radius: 50%;
  background: radial-gradient(ellipse at center, rgba(13, 26, 48, 0.30), transparent 72%);
  filter: blur(3px);
  pointer-events: none;
  animation: ip-shadow 1.7s cubic-bezier(0.45, 0, 0.55, 1) infinite;
}
@keyframes ip-shadow {
  0%, 55%, 100% { transform: scale(1); opacity: 0.55; }
  35%, 80%      { transform: scale(0.84); opacity: 0.3; }
}

/* 速度线（拖在身后） */
.hero-ip .ip-speed {
  position: absolute;
  right: 1%;
  top: 54%;
  width: 27%;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 7px;
  pointer-events: none;
}
.hero-ip .ip-speed i {
  display: block;
  height: 3px;
  border-radius: 3px;
  background: linear-gradient(90deg, rgba(255, 122, 26, 0), rgba(255, 122, 26, 0.85));
  animation: ip-speed 1.3s ease-out infinite;
}
.hero-ip .ip-speed i:nth-child(1) { width: 100%; animation-delay: 0s; }
.hero-ip .ip-speed i:nth-child(2) { width: 64%; animation-delay: 0.18s; }
.hero-ip .ip-speed i:nth-child(3) { width: 40%; animation-delay: 0.36s; }
@keyframes ip-speed {
  0%   { opacity: 0; transform: translateX(-8px) scaleX(0.5); }
  40%  { opacity: 0.9; }
  100% { opacity: 0; transform: translateX(16px) scaleX(1); }
}

/* 名牌 */
.hero-ip .ip-label {
  position: absolute;
  left: 50%;
  bottom: -30px;
  transform: translateX(-50%);
  display: inline-flex;
  align-items: center;
  gap: 5px;
  white-space: nowrap;
  padding: 6px 13px;
  border-radius: 999px;
  font-size: 12.5px;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: #b3480a;
  background: rgba(255, 255, 255, 0.95);
  border: 1px solid rgba(255, 122, 26, 0.34);
  box-shadow: 0 8px 20px rgba(255, 122, 26, 0.18);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}
.hero-ip .ip-label span { color: #ff7a1a; font-size: 11px; }

/* 服务闭环卡片（玻璃拟态 + 辉光） */
.loop-card {
  position: relative;
  background: rgba(255, 255, 255, 0.82);
  border: 1px solid rgba(255, 255, 255, 0.9);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg), 0 0 60px rgba(30, 90, 216, 0.14);
  padding: 26px 26px 20px;
  backdrop-filter: blur(14px) saturate(1.4);
  -webkit-backdrop-filter: blur(14px) saturate(1.4);
}
/* 渐变描边 */
.loop-card::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 1.5px;
  background: linear-gradient(135deg, rgba(30, 90, 216, 0.5), rgba(124, 92, 246, 0.35) 40%, rgba(76, 201, 240, 0.3) 70%, transparent);
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
}
.loop-card .loop-title {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: 12px;
  font-size: 13px;
  font-weight: 700;
  color: var(--ink-400);
  letter-spacing: 0.08em;
  margin-bottom: 8px;
}
.loop-card .loop-title .live {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--accent-ink);
}
.loop-card .live i {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--accent-500);
  display: inline-block;
  animation: pulse-dot 2.2s ease-in-out infinite;
}

/* 闭环图内部动效 */
.loop-arc { stroke-dasharray: 7 6; animation: arc-flow 1.6s linear infinite; }
@keyframes arc-flow { to { stroke-dashoffset: -26; } }
.loop-core-ring { transform-origin: 230px 200px; animation: core-pulse 3s ease-in-out infinite; }
@keyframes core-pulse {
  0%, 100% { opacity: 0.5; transform: scale(1); }
  50% { opacity: 0.15; transform: scale(1.18); }
}
.loop-core { filter: drop-shadow(0 0 14px rgba(30, 90, 216, 0.55)); }
.loop-node { filter: drop-shadow(0 4px 12px rgba(30, 90, 216, 0.18)); }

/* ---------- 数据条 ---------- */
.stats-band {
  position: relative;
  background: var(--grad-deep);
  color: #fff;
  padding: 46px 0;
  overflow: hidden;
}
/* 顶部辉光线 */
.stats-band::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--brand-500), var(--violet-500), var(--cyan-400), transparent);
  background-size: 200% 100%;
  animation: grad-flow 5s ease-in-out infinite;
  opacity: 0.9;
}
/* 底部网格微光 */
.stats-band::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px);
  background-size: 40px 40px;
  mask-image: radial-gradient(ellipse 70% 100% at 50% 100%, #000, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse 70% 100% at 50% 100%, #000, transparent 70%);
  pointer-events: none;
}
.stats-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.stat {
  text-align: center;
  padding: 8px 12px;
  position: relative;
}
.stat + .stat::before {
  content: "";
  position: absolute;
  left: -12px;
  top: 20%;
  height: 60%;
  width: 1px;
  background: linear-gradient(180deg, transparent, rgba(255, 255, 255, 0.25), transparent);
}
.stat-num {
  font-size: clamp(32px, 3.6vw, 44px);
  font-weight: 800;
  line-height: 1.1;
  color: #fff;
  font-variant-numeric: tabular-nums;
  text-shadow: 0 0 30px rgba(109, 163, 246, 0.5);
}
.stat-num .unit {
  font-size: 0.5em;
  font-weight: 700;
  background: linear-gradient(100deg, var(--accent-400), var(--cyan-400));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  margin-left: 4px;
}
.stat-label { font-size: 14px; color: rgba(255, 255, 255, 0.78); margin-top: 6px; }

/* ---------- 通用 Section ---------- */
.section { padding: 92px 0; position: relative; }
.section-soft { background: var(--bg-soft); }

.section-head {
  max-width: 760px;
  margin: 0 auto 58px;
  text-align: center;
}
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-size: 13.5px;
  font-weight: 700;
  letter-spacing: 0.16em;
  background: linear-gradient(100deg, var(--brand-600), var(--violet-500));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  margin-bottom: 15px;
}
.eyebrow::before, .eyebrow::after {
  content: "";
  width: 28px;
  height: 2px;
  background: linear-gradient(90deg, var(--brand-500), var(--violet-500));
  border-radius: 2px;
  box-shadow: 0 0 8px rgba(124, 92, 246, 0.5);
}
.section-head h2 { font-size: clamp(27px, 3.3vw, 40px); font-weight: 800; }
.section-head p { color: var(--ink-500); font-size: 16.5px; margin-bottom: 0; }

/* ---------- 卡片（聚光灯 hover） ---------- */
.grid { display: grid; gap: 24px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

.card {
  position: relative;
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 30px 28px;
  box-shadow: var(--shadow-sm);
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
  height: 100%;
  overflow: hidden;
  backdrop-filter: blur(6px);
}
/* 鼠标聚光灯 */
.card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(320px circle at var(--mx, 50%) var(--my, 50%), rgba(30, 90, 216, 0.09), transparent 65%);
  opacity: 0;
  transition: opacity 0.3s ease;
  pointer-events: none;
}
.card:hover::before { opacity: 1; }
.card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md), 0 0 32px rgba(30, 90, 216, 0.12);
  border-color: var(--brand-200);
}

.card-icon {
  position: relative;
  width: 54px;
  height: 54px;
  border-radius: 15px;
  background: linear-gradient(135deg, var(--brand-100), #ece4fd);
  color: var(--brand-600);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
  box-shadow: inset 0 0 0 1px rgba(30, 90, 216, 0.12), 0 4px 12px rgba(30, 90, 216, 0.12);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}
.card:hover .card-icon {
  transform: scale(1.06) rotate(-3deg);
  box-shadow: inset 0 0 0 1px rgba(30, 90, 216, 0.18), 0 8px 20px rgba(30, 90, 216, 0.22);
}
.card-icon.accent {
  background: linear-gradient(135deg, #ffedd9, #ffe3c2);
  color: var(--accent-ink);
}
.card h3 { font-size: 19px; margin-bottom: 10px; position: relative; }
.card p { color: var(--ink-500); font-size: 15px; margin-bottom: 0; position: relative; }

.card-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 16px;
  font-weight: 600;
  font-size: 14.5px;
  position: relative;
}
.card-link svg { transition: transform 0.18s ease; }
.card-link:hover svg { transform: translateX(4px); }

/* ---------- 三步模型 ---------- */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; counter-reset: step; }
.step-card {
  position: relative;
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 36px 28px 28px;
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
  height: 100%;
}
.step-card::before {
  counter-increment: step;
  content: "0" counter(step);
  position: absolute;
  top: 8px;
  right: 16px;
  font-size: 68px;
  font-weight: 800;
  background: linear-gradient(180deg, rgba(30, 90, 216, 0.14), rgba(124, 92, 246, 0.05));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  line-height: 1;
  z-index: 0;
}
.step-card::after {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--grad-tech);
  opacity: 0;
  transition: opacity 0.25s ease;
}
.step-card:hover::after { opacity: 1; }
.step-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md), 0 0 32px rgba(124, 92, 246, 0.14);
  border-color: var(--brand-200);
}
.step-tag {
  display: inline-block;
  background: linear-gradient(100deg, var(--brand-600), var(--brand-500));
  color: #fff;
  font-size: 13px;
  font-weight: 700;
  padding: 5px 15px;
  border-radius: 999px;
  margin-bottom: 14px;
  position: relative;
  box-shadow: 0 4px 12px rgba(30, 90, 216, 0.3);
}
.step-card:nth-child(2) .step-tag { background: linear-gradient(100deg, var(--brand-700), var(--violet-500)); box-shadow: 0 4px 12px rgba(124, 92, 246, 0.3); }
.step-card:nth-child(3) .step-tag { background: linear-gradient(100deg, var(--accent-ink), var(--accent-500)); box-shadow: 0 4px 12px rgba(255, 122, 26, 0.35); }
.step-card h3 { font-size: 20px; position: relative; }
.step-card p { color: var(--ink-500); font-size: 15px; position: relative; margin-bottom: 0; }
.step-arrow {
  position: absolute;
  top: 48px;
  right: -18px;
  color: var(--brand-400);
  z-index: 2;
  filter: drop-shadow(0 0 6px rgba(30, 90, 216, 0.4));
  animation: arrow-nudge 1.8s ease-in-out infinite;
}
@keyframes arrow-nudge {
  0%, 100% { transform: translateX(0); }
  50% { transform: translateX(5px); }
}
.step-card:last-child .step-arrow { display: none; }

/* ---------- 三档服务 ---------- */
.tier-card {
  position: relative;
  background: rgba(255, 255, 255, 0.94);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 34px 30px;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
  height: 100%;
  backdrop-filter: blur(6px);
}
.tier-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md), 0 0 36px rgba(30, 90, 216, 0.14); }
.tier-card.featured {
  border: 1px solid transparent;
  background:
    linear-gradient(rgba(255, 255, 255, 0.97), rgba(255, 255, 255, 0.97)) padding-box,
    var(--grad-tech) border-box;
  box-shadow: var(--shadow-md), 0 0 44px rgba(124, 92, 246, 0.2);
}
.tier-flag {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: linear-gradient(100deg, var(--brand-600), var(--violet-500));
  color: #fff;
  font-size: 12.5px;
  font-weight: 700;
  letter-spacing: 0.06em;
  padding: 6px 18px;
  border-radius: 999px;
  box-shadow: 0 4px 16px rgba(124, 92, 246, 0.45), 0 0 20px rgba(124, 92, 246, 0.3);
  white-space: nowrap;
}
.tier-head { display: flex; align-items: baseline; gap: 12px; margin-bottom: 6px; }
.tier-head h3 { font-size: 23px; margin: 0; }
.tier-role {
  font-size: 13px;
  font-weight: 700;
  color: var(--accent-ink);
  background: linear-gradient(100deg, #fff1e4, #ffe8d6);
  border-radius: 999px;
  padding: 4px 13px;
  white-space: nowrap;
  box-shadow: inset 0 0 0 1px rgba(255, 158, 77, 0.35);
}
.tier-desc { color: var(--ink-500); font-size: 15px; }
.tier-list { margin: 18px 0 22px; display: grid; gap: 10px; }
.tier-list li {
  display: flex;
  gap: 10px;
  font-size: 14.5px;
  color: var(--ink-700);
  line-height: 1.6;
}
.tier-list svg { color: var(--violet-500); flex-shrink: 0; margin-top: 5px; }
.tier-card .btn { margin-top: auto; }

/* ---------- 闭环三柱 ---------- */
.pillar {
  position: relative;
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 30px 28px;
  text-align: center;
  box-shadow: var(--shadow-sm);
  height: 100%;
  overflow: hidden;
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}
.pillar::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(300px circle at var(--mx, 50%) var(--my, 50%), rgba(124, 92, 246, 0.1), transparent 65%);
  opacity: 0;
  transition: opacity 0.3s ease;
  pointer-events: none;
}
.pillar:hover::before { opacity: 1; }
.pillar:hover { transform: translateY(-5px); box-shadow: var(--shadow-md), 0 0 32px rgba(124, 92, 246, 0.14); border-color: var(--brand-200); }
.pillar-icon {
  position: relative;
  width: 62px;
  height: 62px;
  margin: 0 auto 16px;
  border-radius: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--brand-600), var(--violet-500));
  color: #fff;
  box-shadow: 0 10px 24px rgba(30, 90, 216, 0.35), inset 0 1px 0 rgba(255, 255, 255, 0.3);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}
.pillar:hover .pillar-icon {
  transform: translateY(-2px) scale(1.05);
  box-shadow: 0 14px 32px rgba(124, 92, 246, 0.45), inset 0 1px 0 rgba(255, 255, 255, 0.3);
}
.pillar h3 { font-size: 18.5px; position: relative; }
.pillar p { font-size: 14.5px; color: var(--ink-500); margin-bottom: 0; position: relative; }

/* ---------- 大白话三步（平台页） ---------- */
.plain-step {
  display: grid;
  grid-template-columns: 230px 1fr;
  gap: 34px;
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 36px;
  box-shadow: var(--shadow-sm);
  align-items: center;
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
  backdrop-filter: blur(6px);
}
.plain-step:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: var(--brand-200); }
.plain-step + .plain-step { margin-top: 24px; }
.plain-visual {
  background:
    radial-gradient(200px circle at 50% 20%, rgba(255, 255, 255, 0.9), transparent 70%),
    linear-gradient(150deg, var(--brand-50), #e9e2fd);
  border-radius: var(--radius);
  padding: 28px 18px;
  text-align: center;
  box-shadow: inset 0 0 0 1px rgba(30, 90, 216, 0.1);
}
.plain-visual .pv-num {
  font-size: 46px;
  font-weight: 800;
  background: linear-gradient(100deg, var(--brand-600), var(--violet-500));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  line-height: 1;
  filter: drop-shadow(0 2px 8px rgba(30, 90, 216, 0.25));
}
.plain-visual .pv-title { font-weight: 700; color: var(--ink-900); margin-top: 8px; font-size: 17px; }
.plain-visual .pv-sub { font-size: 12.5px; color: var(--ink-500); margin-top: 2px; }
.plain-body h3 { font-size: 21px; }
.plain-body p { color: var(--ink-500); margin-bottom: 0; font-size: 15.5px; }
.plain-quote {
  margin-top: 14px;
  padding: 13px 18px;
  border-left: 4px solid var(--accent-500);
  background: linear-gradient(100deg, #fff8f1, #fff3e8);
  border-radius: 0 10px 10px 0;
  font-weight: 600;
  color: var(--accent-ink);
  font-size: 14.5px;
  box-shadow: 0 2px 10px rgba(255, 122, 26, 0.1);
}

/* ---------- FAQ ---------- */
.faq { max-width: 820px; margin: 0 auto; display: grid; gap: 14px; }
.faq details {
  background: rgba(255, 255, 255, 0.94);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 0 24px;
  box-shadow: var(--shadow-sm);
  transition: border-color 0.25s ease, box-shadow 0.25s ease;
}
.faq details:hover { border-color: var(--brand-200); box-shadow: var(--shadow-md); }
.faq summary {
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 0;
  font-weight: 700;
  font-size: 16.5px;
  color: var(--ink-900);
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary .faq-icon {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--brand-100), #ece4fd);
  color: var(--brand-600);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.25s ease, background 0.25s ease, color 0.25s ease;
}
.faq details[open] summary .faq-icon { transform: rotate(45deg); background: linear-gradient(135deg, var(--brand-600), var(--violet-500)); color: #fff; box-shadow: 0 4px 12px rgba(124, 92, 246, 0.4); }
.faq details[open] { border-color: var(--brand-200); box-shadow: var(--shadow-md), 0 0 28px rgba(124, 92, 246, 0.1); }
.faq .faq-answer {
  padding: 0 0 22px;
  color: var(--ink-500);
  font-size: 15.5px;
}
.faq .faq-answer p { margin-bottom: 0; }

/* ---------- 关于页 ---------- */
.about-intro {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 48px;
  align-items: center;
}
.about-intro h2 { font-size: clamp(25px, 3.1vw, 36px); }
.about-intro p { color: var(--ink-500); font-size: 16px; }
.qual-card {
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px 24px;
  display: flex;
  gap: 16px;
  align-items: flex-start;
  box-shadow: var(--shadow-sm);
  transition: transform 0.22s ease, box-shadow 0.22s ease, border-color 0.22s ease;
  backdrop-filter: blur(6px);
}
.qual-card:hover { transform: translateX(4px); border-color: var(--brand-200); box-shadow: var(--shadow-md), 0 0 24px rgba(30, 90, 216, 0.1); }
.qual-card + .qual-card { margin-top: 16px; }
.qual-icon {
  flex-shrink: 0;
  width: 46px;
  height: 46px;
  border-radius: 12px;
  background: linear-gradient(135deg, #fff1e4, #ffe8d6);
  color: var(--accent-ink);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: inset 0 0 0 1px rgba(255, 158, 77, 0.3), 0 4px 10px rgba(255, 122, 26, 0.14);
}
.qual-card h3 { font-size: 16.5px; margin-bottom: 4px; }
.qual-card p { font-size: 13.5px; color: var(--ink-500); margin-bottom: 0; }

.biz-card {
  background: rgba(255, 255, 255, 0.94);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  height: 100%;
  display: flex;
  flex-direction: column;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
  backdrop-filter: blur(6px);
}
.biz-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-md), 0 0 36px rgba(30, 90, 216, 0.14); }
.biz-head {
  position: relative;
  padding: 28px 30px;
  background: var(--grad-deep);
  color: #fff;
  overflow: hidden;
}
.biz-head::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.05) 1px, transparent 1px);
  background-size: 28px 28px;
  mask-image: radial-gradient(ellipse 80% 100% at 80% 0%, #000, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse 80% 100% at 80% 0%, #000, transparent 75%);
}
.biz-head::before {
  content: "";
  position: absolute;
  top: -40px; right: -40px;
  width: 160px; height: 160px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(124, 92, 246, 0.35), transparent 70%);
  filter: blur(30px);
}
.biz-head .biz-no {
  font-size: 12.5px;
  font-weight: 700;
  letter-spacing: 0.18em;
  color: var(--cyan-400);
  margin-bottom: 6px;
  position: relative;
}
.biz-head h3 { color: #fff; font-size: 22px; margin-bottom: 6px; position: relative; }
.biz-head p { color: rgba(255, 255, 255, 0.85); font-size: 14px; margin-bottom: 0; position: relative; }
.biz-body { padding: 26px 30px 30px; }
.biz-body p { color: var(--ink-500); font-size: 15px; }
.biz-body p:last-child { margin-bottom: 0; }

.creed { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.creed-item {
  text-align: center;
  padding: 36px 22px;
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
  backdrop-filter: blur(6px);
}
.creed-item:hover { transform: translateY(-5px); border-color: var(--brand-200); box-shadow: var(--shadow-md), 0 0 30px rgba(30, 90, 216, 0.12); }
.creed-item .c-no {
  width: 46px; height: 46px;
  margin: 0 auto 14px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--brand-100), #ece4fd);
  color: var(--brand-700);
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: inset 0 0 0 1px rgba(30, 90, 216, 0.15), 0 4px 12px rgba(30, 90, 216, 0.15);
}
.creed-item h3 { font-size: 18px; }
.creed-item p { font-size: 14px; color: var(--ink-500); margin-bottom: 0; }

.vision-panel {
  position: relative;
  background:
    radial-gradient(700px 340px at 88% 8%, rgba(124, 92, 246, 0.28), transparent 60%),
    radial-gradient(500px 300px at 10% 100%, rgba(76, 201, 240, 0.18), transparent 60%),
    var(--grad-deep);
  border-radius: var(--radius-lg);
  color: #fff;
  padding: 58px;
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-lg), 0 0 60px rgba(30, 90, 216, 0.2);
}
.vision-panel::after {
  content: "";
  position: absolute;
  right: -60px; bottom: -80px;
  width: 260px; height: 260px;
  border-radius: 50%;
  border: 42px solid rgba(255, 255, 255, 0.05);
}
.vision-panel .eyebrow { color: var(--cyan-400); background: none; -webkit-text-fill-color: var(--cyan-400); }
.vision-panel .eyebrow::before, .vision-panel .eyebrow::after { background: var(--cyan-400); }
.vision-panel h2 { color: #fff; font-size: clamp(25px, 3.1vw, 36px); max-width: 26em; }
.vision-panel p {
  color: rgba(255, 255, 255, 0.88);
  font-size: 16.5px;
  max-width: 46em;
  margin-bottom: 0;
  position: relative;
  z-index: 1;
}

/* ---------- CTA 横幅 ---------- */
.cta-band {
  position: relative;
  background: linear-gradient(120deg, var(--brand-700), var(--brand-500) 55%, var(--violet-500));
  border-radius: var(--radius-lg);
  padding: 58px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  color: #fff;
  box-shadow: var(--shadow-lg), 0 0 50px rgba(30, 90, 216, 0.28);
  position: relative;
  overflow: hidden;
}
.cta-band::before {
  content: "";
  position: absolute;
  right: -40px; top: -60px;
  width: 240px; height: 240px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.08);
  filter: blur(10px);
}
.cta-band::after {
  content: "";
  position: absolute;
  left: 20%; bottom: -120px;
  width: 300px; height: 300px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 158, 77, 0.22), transparent 65%);
  filter: blur(40px);
}
.cta-band h2 { color: #fff; font-size: clamp(25px, 3.1vw, 34px); margin-bottom: 10px; position: relative; z-index: 1; }
.cta-band p { color: rgba(255, 255, 255, 0.9); margin-bottom: 0; max-width: 34em; position: relative; z-index: 1; }
.cta-actions { display: flex; flex-wrap: wrap; gap: 14px; flex-shrink: 0; position: relative; z-index: 1; }
.cta-band .btn-outline {
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(255, 255, 255, 0.6);
  color: #fff;
}
.cta-band .btn-outline:hover { background: rgba(255, 255, 255, 0.22); color: #fff; }

/* ---------- 联系页 ---------- */
.contact-head { max-width: 720px; margin-bottom: 34px; }
.contact-head h2 { font-size: clamp(24px, 3vw, 32px); margin-bottom: 10px; }
.contact-lead { color: var(--ink-500); font-size: 15px; margin-bottom: 0; }
.contact-methods { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.contact-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px 24px;
  box-shadow: var(--shadow-sm);
  transition: transform 0.22s ease, box-shadow 0.22s ease, border-color 0.22s ease;
  backdrop-filter: blur(6px);
}
.contact-item:hover { transform: translateY(-3px); border-color: var(--brand-200); box-shadow: var(--shadow-md), 0 0 26px rgba(30, 90, 216, 0.12); }
.contact-item .ci-icon {
  flex-shrink: 0;
  width: 46px; height: 46px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--brand-100), #ece4fd);
  color: var(--brand-600);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: inset 0 0 0 1px rgba(30, 90, 216, 0.12);
}
.contact-item h3 { font-size: 15.5px; margin-bottom: 4px; }
.contact-item--wide { grid-column: 1 / -1; align-items: center; }
.contact-item--wide .ci-qr-text { flex: 1 1 auto; }
.ci-qr {
  flex-shrink: 0;
  width: 104px; height: 104px;
  border-radius: 12px;
  border: 1px solid #e3ecfb;
  margin-left: 8px;
  background: #fff;
}
.contact-item p { font-size: 14.5px; color: var(--ink-500); margin-bottom: 0; overflow-wrap: anywhere; }
.contact-link {
  color: var(--brand-600);
  font-weight: 600;
  text-decoration: none;
  border-bottom: 1px solid rgba(30, 90, 216, 0.28);
  transition: color 0.18s ease, border-color 0.18s ease;
}
.contact-link:hover { color: var(--brand-700, #0a2a6b); border-bottom-color: currentColor; }
.placeholder-tag {
  display: inline-block;
  font-size: 11.5px;
  font-weight: 700;
  color: var(--accent-ink);
  background: linear-gradient(100deg, #fff1e4, #ffe8d6);
  border-radius: 6px;
  padding: 1px 8px;
  margin-left: 8px;
  vertical-align: 1px;
  letter-spacing: 0.04em;
}


.flow-steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin-top: 56px; }
.flow-step {
  text-align: center;
  padding: 28px 20px;
  background: var(--bg-soft);
  border-radius: var(--radius);
  border: 1px dashed var(--brand-200);
  transition: transform 0.22s ease, box-shadow 0.22s ease, border-color 0.22s ease;
}
.flow-step:hover { transform: translateY(-3px); border-color: var(--brand-400); border-style: solid; box-shadow: var(--shadow-sm), 0 0 22px rgba(30, 90, 216, 0.1); }
.flow-step .fs-no {
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.12em;
  background: linear-gradient(100deg, var(--brand-600), var(--violet-500));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  margin-bottom: 8px;
}
.flow-step h3 { font-size: 16.5px; margin-bottom: 6px; }
.flow-step p { font-size: 13.5px; color: var(--ink-500); margin-bottom: 0; }

/* ---------- 页脚 ---------- */
.site-footer {
  position: relative;
  background: var(--grad-deep);
  color: rgba(255, 255, 255, 0.78);
  padding: 66px 0 0;
  margin-top: 24px;
  overflow: hidden;
}
/* 顶部辉光线 */
.site-footer::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--brand-500), var(--violet-500), var(--cyan-400), transparent);
  background-size: 200% 100%;
  animation: grad-flow 5s ease-in-out infinite;
  opacity: 0.85;
}
.site-footer::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: radial-gradient(ellipse 90% 80% at 50% 0%, #000, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse 90% 80% at 50% 0%, #000, transparent 70%);
  pointer-events: none;
}
.footer-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: 40px;
  padding-bottom: 48px;
}
.footer-brand .brand { color: #fff; margin-bottom: 18px; }
.footer-brand .brand:hover { color: #fff; }
.footer-brand .brand-sub { color: rgba(255, 255, 255, 0.6); }
.footer-brand p { font-size: 14px; line-height: 1.8; max-width: 30em; }
.footer-col h4 {
  color: #fff;
  font-size: 15.5px;
  margin-bottom: 18px;
  letter-spacing: 0.04em;
}
.footer-col ul { display: grid; gap: 11px; }
.footer-col a { color: rgba(255, 255, 255, 0.78); font-size: 14.5px; transition: color 0.15s ease, padding-left 0.15s ease; }
.footer-col a:hover { color: #fff; padding-left: 4px; }
.footer-contact li {
  display: flex;
  gap: 10px;
  font-size: 14.5px;
  margin-bottom: 11px;
  align-items: flex-start;
}
.footer-contact svg { flex-shrink: 0; margin-top: 5px; color: var(--cyan-400); }
.footer-bottom {
  position: relative;
  z-index: 1;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  padding: 22px 0 26px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
  justify-content: space-between;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.62);
}
.footer-bottom a { color: rgba(255, 255, 255, 0.62); }
.footer-bottom a:hover { color: #fff; }
/* 备案号：按工信部要求保持清晰可读 */
#icp-number {
  color: rgba(255, 255, 255, 0.86);
  text-decoration: none;
  letter-spacing: 0.01em;
}
#icp-number:hover { color: #fff; text-decoration: underline; text-underline-offset: 3px; }

/* ---------- 返回顶部 ---------- */
.back-top {
  position: fixed;
  right: 22px;
  bottom: 22px;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  border: none;
  background: linear-gradient(135deg, var(--brand-600), var(--violet-500));
  color: #fff;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 8px 24px rgba(30, 90, 216, 0.45), 0 0 20px rgba(124, 92, 246, 0.3);
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: opacity 0.25s ease, transform 0.25s ease, visibility 0.25s ease, box-shadow 0.2s ease;
  z-index: 90;
}
.back-top.show { opacity: 1; visibility: visible; transform: translateY(0); }
.back-top:hover { box-shadow: 0 10px 30px rgba(30, 90, 216, 0.6), 0 0 28px rgba(124, 92, 246, 0.5); }

/* ---------- 滚动显现动画 ---------- */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s cubic-bezier(0.22, 1, 0.36, 1), transform 0.7s cubic-bezier(0.22, 1, 0.36, 1);
}
.reveal.visible { opacity: 1; transform: none; }
.reveal-d1 { transition-delay: 0.09s; }
.reveal-d2 { transition-delay: 0.18s; }
.reveal-d3 { transition-delay: 0.27s; }

/* ---------- 页面头图（内页） ---------- */
.page-hero {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(700px 400px at 88% 0%, rgba(124, 92, 246, 0.14), transparent 60%),
    radial-gradient(860px 480px at -5% 0%, rgba(30, 90, 216, 0.15), transparent 55%),
    radial-gradient(500px 320px at 55% 115%, rgba(76, 201, 240, 0.1), transparent 60%),
    linear-gradient(180deg, #eef4fe, #fff);
  padding: 76px 0 68px;
  text-align: center;
}
.page-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(30, 90, 216, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(30, 90, 216, 0.06) 1px, transparent 1px);
  background-size: 46px 46px;
  mask-image: radial-gradient(ellipse 85% 85% at 50% 18%, #000 30%, transparent 78%);
  -webkit-mask-image: radial-gradient(ellipse 85% 85% at 50% 18%, #000 30%, transparent 78%);
  pointer-events: none;
}
.page-hero .container { position: relative; z-index: 1; }
.breadcrumb {
  font-size: 13.5px;
  color: var(--ink-500);
  margin-bottom: 16px;
}
.breadcrumb a { color: var(--brand-600); font-weight: 500; }
.breadcrumb .sep { margin: 0 8px; color: var(--ink-400); }
.page-hero h1 { font-size: clamp(29px, 4.2vw, 46px); font-weight: 800; }
.page-hero .lead {
  font-size: 17px;
  color: var(--ink-500);
  max-width: 42em;
  margin: 0 auto;
}

/* ---------- 创始人板块 ---------- */
.founder-section { overflow: hidden; }
.founder-section::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(620px 420px at 8% 24%, rgba(124, 92, 246, 0.12), transparent 70%),
    radial-gradient(560px 420px at 94% 80%, rgba(76, 201, 240, 0.14), transparent 70%);
}
.founder-grid {
  display: grid;
  grid-template-columns: 0.86fr 1.14fr;
  gap: 60px;
  align-items: center;
  position: relative;
}
.founder-visual { position: relative; }
.founder-aura {
  position: absolute;
  inset: -12% -10% -6% -12%;
  background:
    radial-gradient(46% 42% at 30% 22%, rgba(124, 92, 246, 0.32), transparent 70%),
    radial-gradient(46% 44% at 74% 78%, rgba(76, 201, 240, 0.34), transparent 70%);
  filter: blur(46px);
  pointer-events: none;
}
.founder-frame {
  position: relative;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  line-height: 0;
}
.founder-frame::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 2px;
  background: linear-gradient(135deg, var(--brand-500), var(--violet-500) 55%, var(--cyan-400));
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
  z-index: 2;
}
.founder-frame img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: var(--radius-lg);
}
.founder-chip {
  position: absolute;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 8px 14px;
  font-size: 13px;
  font-weight: 700;
  color: var(--ink-700);
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid var(--line);
  border-radius: 999px;
  box-shadow: var(--shadow-sm);
  backdrop-filter: blur(8px);
  white-space: nowrap;
}
.founder-chip::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
}
.chip-a { top: 7%; right: -18px; animation: founder-float 5.2s ease-in-out infinite; }
.chip-a::before { background: var(--violet-500); box-shadow: 0 0 8px var(--violet-500); }
.chip-b { bottom: 15%; left: -22px; animation: founder-float 6s ease-in-out 0.6s infinite; }
.chip-b::before { background: var(--cyan-400); box-shadow: 0 0 8px var(--cyan-400); }
.chip-c { bottom: 4%; right: -10px; animation: founder-float 5.6s ease-in-out 1.2s infinite; }
.chip-c::before { background: var(--brand-500); box-shadow: 0 0 8px var(--brand-500); }
@keyframes founder-float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}
.founder-info h2 { font-size: clamp(26px, 3.2vw, 38px); margin: 14px 0 18px; }
.founder-info p { color: var(--ink-500); font-size: 16px; }
.founder-info p b { color: var(--ink-900); }
.founder-motto {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 24px 0 28px;
  padding: 12px 22px;
  font-size: 17px;
  font-weight: 800;
  letter-spacing: 0.06em;
  border-radius: 999px;
  color: var(--brand-600);
  background: linear-gradient(100deg, rgba(59, 123, 240, 0.1), rgba(124, 92, 246, 0.12));
  border: 1px solid rgba(124, 92, 246, 0.28);
}
.founder-motto::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--grad-tech);
  box-shadow: 0 0 10px rgba(124, 92, 246, 0.7);
}

/* ---------- 响应式 ---------- */
@media (max-width: 1020px) {
  .contact-methods { grid-template-columns: repeat(2, 1fr); }
  .hero-grid { grid-template-columns: 1fr; gap: 46px; }
  .hero { padding: 66px 0 76px; }
  .hero-visual { max-width: 560px; margin-inline: auto; width: 100%; }
  .about-intro { grid-template-columns: 1fr; gap: 36px; }
  .founder-grid { grid-template-columns: 1fr; gap: 48px; }
  .founder-visual { max-width: 480px; margin-inline: auto; width: 100%; }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
  .plain-step { grid-template-columns: 1fr; gap: 20px; }
  .plain-visual { display: flex; align-items: center; justify-content: center; gap: 14px; padding: 16px; }
  .plain-visual .pv-num { font-size: 36px; }
}

@media (max-width: 860px) {
  .site-nav {
    position: fixed;
    top: var(--header-h);
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.97);
    backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--line);
    box-shadow: var(--shadow-md);
    padding: 16px 24px 24px;
    display: none;
  }
  .site-nav.open { display: block; }
  .site-nav ul { flex-direction: column; align-items: stretch; gap: 4px; }
  .site-nav a { padding: 12px 16px; border-radius: 12px; font-size: 16px; }
  .nav-toggle { display: block; }
  .nav-cta .btn { display: none; }
  .contact-methods { grid-template-columns: 1fr; }

  .grid-3, .steps, .creed, .flow-steps { grid-template-columns: 1fr; }
  .step-arrow { display: none; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
  .stat + .stat::before { display: none; }
  .cta-band { flex-direction: column; align-items: flex-start; padding: 42px 32px; }
  .vision-panel { padding: 42px 32px; }
  .section { padding: 66px 0; }
  .orb { filter: blur(50px); }
  .chip-a { right: 8px; }
  .chip-b { left: 8px; }
  .chip-c { right: 12px; }
  .founder-aura { inset: -8% -6% -4% -8%; }
}

@media (max-width: 640px) {
  .container { width: calc(100% - 36px); }
  .grid-2, .grid-4 { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .hero-actions .btn { width: 100%; }
  .brand-sub { display: none; }
  .tier-head { flex-direction: column; gap: 6px; }
}

/* ---------- 动效减弱 ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  .reveal { opacity: 1; transform: none; }
  .orb { animation: none; }
}

/* ---------- 打印 ---------- */
@media print {
  .site-header, .back-top, .cta-band, .nav-toggle, .hero-canvas, .orb { display: none !important; }
  body { color: #000; }
}

/* ============================================================
   产品中心页 · 新增样式
   ============================================================ */

/* 旗舰平台：创友聚 */
.flagship {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 54px;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding: 50px;
  border-radius: var(--radius-lg);
  background:
    radial-gradient(700px 360px at 88% 6%, rgba(124, 92, 246, 0.28), transparent 60%),
    radial-gradient(520px 320px at 6% 100%, rgba(76, 201, 240, 0.18), transparent 60%),
    var(--grad-deep);
  box-shadow: var(--shadow-lg), 0 0 60px rgba(30, 90, 216, 0.2);
  color: #fff;
}
.flagship::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
  background-size: 40px 40px;
  mask-image: radial-gradient(ellipse 80% 80% at 50% 40%, #000, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse 80% 80% at 50% 40%, #000, transparent 75%);
  pointer-events: none;
}
.flagship-visual { position: relative; aspect-ratio: 1 / 1; }
.fs-core {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  width: 152px; height: 152px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--brand-500), var(--violet-500));
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 6px; color: #fff; text-align: center; z-index: 2;
  box-shadow: 0 0 50px rgba(124, 92, 246, 0.6), inset 0 1px 0 rgba(255, 255, 255, 0.3);
  animation: core-breathe 4s ease-in-out infinite;
}
@keyframes core-breathe { 0%,100% { box-shadow: 0 0 40px rgba(124,92,246,.45), inset 0 1px 0 rgba(255,255,255,.3); } 50% { box-shadow: 0 0 64px rgba(124,92,246,.75), inset 0 1px 0 rgba(255,255,255,.3); } }
.fs-core span { font-size: 15px; font-weight: 800; letter-spacing: 0.04em; }
.fs-core small { font-size: 11px; opacity: 0.82; letter-spacing: 0.06em; }
.fs-orb { position: absolute; border-radius: 50%; filter: blur(40px); }
.fs-orb-a { width: 200px; height: 200px; top: 6%; left: 8%; background: radial-gradient(circle, rgba(124, 92, 246, 0.42), transparent 70%); animation: orb-float 14s ease-in-out infinite alternate; }
.fs-orb-b { width: 170px; height: 170px; bottom: 4%; right: 10%; background: radial-gradient(circle, rgba(76, 201, 240, 0.42), transparent 70%); animation: orb-float 18s ease-in-out infinite alternate-reverse; }
.fs-tag {
  position: absolute;
  display: inline-flex; align-items: center; gap: 6px;
  padding: 8px 15px; font-size: 13px; font-weight: 700; color: var(--ink-900);
  background: rgba(255, 255, 255, 0.92); border-radius: 999px;
  box-shadow: var(--shadow-md); backdrop-filter: blur(8px); z-index: 3;
}
.fs-tag::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: var(--brand-500); box-shadow: 0 0 8px var(--brand-500); }
.t1 { top: 4%; left: 2%; }
.t2 { top: 18%; right: 0%; }
.t3 { bottom: 16%; left: 0%; }
.t4 { bottom: 4%; right: 6%; }
.flagship-info h3 { color: #fff; font-size: clamp(22px, 2.6vw, 30px); margin: 14px 0 16px; }
.flagship-badge { display: inline-block; font-size: 12.5px; font-weight: 700; color: var(--cyan-400); border: 1px solid rgba(76, 201, 240, 0.4); background: rgba(76, 201, 240, 0.12); border-radius: 999px; padding: 5px 14px; letter-spacing: 0.04em; }
.flagship-info p { color: rgba(255, 255, 255, 0.86); font-size: 15.5px; }
.flagship-list { margin: 22px 0 26px; display: grid; gap: 12px; }
.flagship-list li { display: flex; gap: 10px; align-items: flex-start; font-size: 14.5px; color: rgba(255, 255, 255, 0.92); }
.flagship-list svg { color: var(--cyan-400); flex-shrink: 0; margin-top: 3px; }
.flagship-info .btn-primary { background: linear-gradient(100deg, var(--cyan-400), #fff); color: var(--navy-900); }

/* 骏牛系列产品卡 */
.product-card {
  position: relative;
  background: rgba(255, 255, 255, 0.94);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 30px 26px 26px;
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
  height: 100%;
}
.product-card::after {
  content: "";
  position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: var(--grad-tech); opacity: 0.9;
}
.product-card::before {
  content: "";
  position: absolute; inset: 0;
  background: radial-gradient(300px circle at var(--mx, 50%) var(--my, 50%), rgba(30, 90, 216, 0.09), transparent 65%);
  opacity: 0; transition: opacity 0.3s ease; pointer-events: none;
}
.product-card:hover::before { opacity: 1; }
.product-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-md), 0 0 32px rgba(30, 90, 216, 0.14); border-color: var(--brand-200); }
.pc-icon {
  width: 54px; height: 54px; border-radius: 15px;
  background: linear-gradient(135deg, var(--brand-100), #ece4fd);
  color: var(--brand-600);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 16px;
  box-shadow: inset 0 0 0 1px rgba(30, 90, 216, 0.12), 0 4px 12px rgba(30, 90, 216, 0.12);
  transition: transform 0.25s ease;
}
.product-card:hover .pc-icon { transform: scale(1.06) rotate(-3deg); }
.product-card h3 { font-size: 19px; margin-bottom: 8px; }
.pc-tag {
  display: inline-block; font-size: 12px; font-weight: 700; color: var(--brand-700);
  background: var(--brand-50); border: 1px solid var(--brand-200); border-radius: 999px; padding: 3px 12px; margin-bottom: 14px;
}
.product-card p { color: var(--ink-500); font-size: 14.5px; margin-bottom: 14px; }

/* 智能体矩阵：工具栏 + 筛选 + 网格 */
.agent-toolbar { display: flex; align-items: center; justify-content: space-between; gap: 20px; flex-wrap: wrap; margin-bottom: 26px; }
.agent-search {
  display: flex; align-items: center; gap: 10px; flex: 1; min-width: 260px; max-width: 460px;
  background: #fff; border: 1.5px solid var(--line); border-radius: 999px; padding: 11px 20px;
  color: var(--ink-400); transition: border-color 0.15s ease, box-shadow 0.15s ease;
}
.agent-search:focus-within { border-color: var(--brand-500); box-shadow: 0 0 0 4px rgba(59, 123, 240, 0.14); }
.agent-search input { border: none; outline: none; background: transparent; font-family: inherit; font-size: 15px; color: var(--ink-900); width: 100%; }
.agent-count { font-size: 14.5px; color: var(--ink-500); }
.agent-count b { color: var(--brand-600); font-size: 18px; margin: 0 2px; }
.agent-tabs { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 30px; }
.agent-tab {
  font-family: inherit; cursor: pointer; border: 1.5px solid var(--line); background: #fff;
  color: var(--ink-700); font-size: 14px; font-weight: 600; padding: 8px 16px; border-radius: 999px;
  transition: all 0.18s ease; display: inline-flex; align-items: center; gap: 7px;
}
.agent-tab .at-count { font-size: 12px; color: var(--ink-400); background: var(--bg-soft); border-radius: 999px; padding: 1px 8px; }
.agent-tab:hover { border-color: var(--brand-200); color: var(--brand-700); background: var(--brand-50); }
.agent-tab.active { color: #fff; border-color: transparent; background: linear-gradient(100deg, var(--brand-600), var(--violet-500)); box-shadow: 0 6px 16px rgba(30, 90, 216, 0.3); }
.agent-tab.active .at-count { color: #fff; background: rgba(255, 255, 255, 0.22); }
.agent-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(188px, 1fr)); gap: 16px; }
.agent-card {
  position: relative; background: rgba(255, 255, 255, 0.95); border: 1px solid var(--line);
  border-radius: 14px; padding: 18px 18px 16px; box-shadow: var(--shadow-sm);
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
  border-left: 3px solid var(--ac, var(--brand-500));
}
.agent-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md), 0 0 26px rgba(30, 90, 216, 0.12); border-color: var(--brand-200); }
.ac-icon { width: 38px; height: 38px; border-radius: 11px; display: flex; align-items: center; justify-content: center; background: var(--brand-50); color: var(--ac); margin-bottom: 12px; box-shadow: inset 0 0 0 1px rgba(30, 90, 216, 0.1); }
.ac-name { font-size: 15.5px; font-weight: 700; color: var(--ink-900); margin: 0 0 6px; line-height: 1.4; }
.ac-cat { display: inline-block; font-size: 12px; font-weight: 600; color: var(--ac); background: var(--bg-soft); border-radius: 999px; padding: 2px 10px; }
.agent-empty { text-align: center; color: var(--ink-500); padding: 40px 0; font-size: 15px; }
.agent-empty a { font-weight: 600; }

/* 关于页：知识产权画廊 */
.ip-gallery { display: grid; grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); gap: 20px; }
.ip-item {
  position: relative; display: block; width: 100%; padding: 0; margin: 0;
  text-align: left; font: inherit; color: inherit; appearance: none; -webkit-appearance: none;
  border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden;
  background: #fff; box-shadow: var(--shadow-sm); cursor: pointer;
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}
.ip-item:focus-visible { outline: 3px solid var(--brand-500); outline-offset: 3px; }
.ip-item:hover { transform: translateY(-4px); box-shadow: var(--shadow-md), 0 0 30px rgba(30, 90, 216, 0.12); border-color: var(--brand-200); }
.ip-item img { width: 100%; height: auto; display: block; background: #f3f6fc; }
.ip-cap { display: block; padding: 14px 16px; font-size: 13.5px; font-weight: 600; color: var(--ink-900); line-height: 1.45; border-top: 1px solid var(--line-soft); }
.ip-cap small { display: block; font-weight: 500; color: var(--ink-500); font-size: 12px; margin-top: 4px; letter-spacing: 0.02em; }
.ip-note { text-align: center; color: var(--ink-500); font-size: 13.5px; margin-top: 26px; }
.ip-zoom-hint {
  position: absolute; top: 10px; right: 10px;
  background: rgba(255, 255, 255, 0.92); border-radius: 999px; padding: 5px 11px;
  font-size: 12px; font-weight: 600; color: var(--brand-700);
  opacity: 0; transform: translateY(-4px); transition: 0.2s ease; box-shadow: var(--shadow-sm);
}
.ip-item:hover .ip-zoom-hint { opacity: 1; transform: none; }

/* 灯箱（全局） */
.lb-overlay {
  position: fixed; inset: 0; z-index: 300;
  background: rgba(4, 13, 31, 0.88);
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  padding: 32px; opacity: 0; visibility: hidden;
  transition: opacity 0.25s ease, visibility 0.25s ease;
  backdrop-filter: blur(4px); -webkit-backdrop-filter: blur(4px);
}
.lb-overlay.open { opacity: 1; visibility: visible; }
.lb-figure { max-width: min(820px, 92vw); transform: scale(0.96); transition: transform 0.25s ease; }
.lb-overlay.open .lb-figure { transform: none; }
.lb-figure img { width: 100%; height: auto; max-height: 78vh; border-radius: 14px; box-shadow: 0 24px 60px rgba(0, 0, 0, 0.5); background: #fff; }
.lb-caption { color: #fff; text-align: center; margin-top: 16px; font-size: 15px; max-width: 60ch; }
.lb-caption small { display: block; opacity: 0.72; margin-top: 4px; font-size: 13px; }
.lb-close {
  position: absolute; top: 20px; right: 24px; width: 44px; height: 44px; border-radius: 50%;
  border: none; background: rgba(255, 255, 255, 0.14); color: #fff; cursor: pointer;
  display: flex; align-items: center; justify-content: center; font-size: 22px; transition: 0.2s ease;
}
.lb-close:hover { background: rgba(255, 255, 255, 0.28); transform: rotate(90deg); }
.lb-prev, .lb-next {
  position: absolute; top: 50%; transform: translateY(-50%);
  width: 46px; height: 46px; border-radius: 50%; border: none;
  background: rgba(255, 255, 255, 0.14); color: #fff; cursor: pointer;
  display: flex; align-items: center; justify-content: center; font-size: 22px; transition: 0.2s ease;
}
.lb-prev { left: 20px; }
.lb-next { right: 20px; }
.lb-prev:hover, .lb-next:hover { background: rgba(255, 255, 255, 0.28); }

/* 产品页 / 知识产权区 响应式 */
@media (max-width: 1020px) {
  .flagship { grid-template-columns: 1fr; gap: 40px; padding: 40px; }
  .flagship-visual { max-width: 420px; margin-inline: auto; min-height: 380px; }
}
@media (max-width: 640px) {
  .flagship { padding: 30px 22px; }
  .agent-grid { grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); }
  .ip-gallery { grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); }
  .lb-prev { left: 8px; }
  .lb-next { right: 8px; }
  .agent-toolbar { flex-direction: column; align-items: stretch; }
  .agent-search { max-width: none; }
}

/* 品牌 IP「骏牛」响应式 */
@media (max-width: 1020px) {
  .hero-ip { width: clamp(140px, 21vw, 178px); margin-bottom: -44px; }
}
@media (max-width: 640px) {
  .hero-ip { width: 134px; margin: 0 0 -34px 0; }
  .hero-ip .ip-label { font-size: 11.5px; padding: 5px 11px; }
  .hero-ip .ip-speed { display: none; }
}
@media (prefers-reduced-motion: reduce) {
  .hero-ip .ip-img,
  .hero-ip .ip-shadow,
  .hero-ip .ip-speed i { animation: none !important; }
}

/* ---------- 404 页 ---------- */
.page-404 { display: flex; flex-direction: column; min-height: 100vh; }
.page-404 .err-page { flex: 1 1 auto; }
.err-page {
  position: relative;
  padding: clamp(60px, 11vw, 132px) 0 clamp(52px, 9vw, 104px);
  background:
    radial-gradient(760px 460px at 18% 0%, rgba(59, 123, 240, 0.14), transparent 62%),
    radial-gradient(620px 420px at 88% 12%, rgba(255, 122, 26, 0.12), transparent 64%),
    linear-gradient(180deg, #f6f9ff 0%, #ffffff 72%);
  overflow: hidden;
}
.err-inner { max-width: 720px; text-align: center; }
.err-code {
  font-size: clamp(78px, 15vw, 148px);
  font-weight: 800;
  line-height: 0.9;
  letter-spacing: -0.04em;
  margin: 0 0 10px;
  background: linear-gradient(120deg, #1e5ad8 8%, #3b7bf0 46%, #ff7a1a 108%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.err-page h1 { font-size: clamp(22px, 3.4vw, 30px); margin-bottom: 12px; color: var(--ink-900); }
.err-desc { color: var(--ink-500); font-size: 15.5px; line-height: 1.85; margin-bottom: 30px; }
.err-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
  margin-bottom: 26px;
}
.err-tel { font-size: 14px; color: var(--ink-400); margin: 0; }
.err-tel a { color: var(--brand-600); font-weight: 600; text-decoration: none; border-bottom: 1px solid rgba(30, 90, 216, 0.28); }
.err-tel a:hover { border-bottom-color: currentColor; }

@media (max-width: 640px) {
  .err-actions .btn { flex: 1 1 100%; }
}