/* ============================================================
   店番番官网 · 科技蓝 × 纯白（Oriental Modern Tech · Blue Edition）
   配色：科技蓝 / 蓝亮 / 深海军蓝 / 纯白
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=ZCOOL+QingKe+HuangYou&family=Noto+Sans+SC:wght@300;400;500;700;900&family=Manrope:wght@500;600;700;800&display=swap');

:root {
  /* 科技蓝主色 */
  --red: #1E6BFF;          /* 功能主色（科技蓝） */
  --red-deep: #0A3DCC;
  --red-bright: #3B82F6;
  --gold: #60A5FA;        /* 深底强调（蓝亮） */
  --gold-soft: #93C5FD;
  /* 深底 */
  --ink: #0B1A3A;          /* 深海军蓝 */
  --ink-2: #122A5C;
  --ink-3: #1A2F5C;
  /* 纯白底 */
  --paper: #FFFFFF;
  --paper-2: #F5F8FC;
  --paper-3: #E8EFF8;
  --line: rgba(11, 26, 58, .08);
  --line-dark: rgba(255, 255, 255, .12);

  /* 字体 */
  --ff-display:  'Noto Serif SC', 'ZCOOL QingKe HuangYou', serif;
  --ff-body: 'Noto Sans SC', -apple-system, 'PingFang SC', 'Microsoft YaHei', sans-serif;
  --ff-num: 'Manrope', sans-serif;

  /* 阴影 */
  --shadow-sm: 0 2px 8px rgba(11, 26, 58, .06);
  --shadow-md: 0 12px 40px rgba(11, 26, 58, .1);
  --shadow-red: 0 18px 50px rgba(30, 107, 255, .28);

  /* 尺寸 */
  --maxw: 1200px;
}

/* ---------- 重置 ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--ff-body);
  background: var(--paper);
  color: var(--ink);
  line-height: 1.65;
  font-weight: 400;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; border: none; background: none; color: inherit; }
ul { list-style: none; }
section { position: relative; }

/* 氛围光晕叠加（全站，冷调） */
body::before {
  content: '';
  position: fixed; inset: 0;
  pointer-events: none; z-index: 1;
  background-image:
    radial-gradient(circle at 20% 30%, rgba(30, 107, 255, .03), transparent 45%),
    radial-gradient(circle at 80% 70%, rgba(96, 165, 250, .04), transparent 45%);
  mix-blend-mode: multiply;
}

/* ---------- 通用 ---------- */
.container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 24px; position: relative; z-index: 2; }

.section { padding: 112px 0; position: relative; }
.section-sm { padding: 72px 0; }

.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--ff-num);
  font-size: 12px; font-weight: 700; letter-spacing: 3px; text-transform: uppercase;
  color: var(--red);
  padding: 6px 14px;
  border: 1px solid rgba(30, 107, 255, .3);
  border-radius: 999px;
  background: rgba(30, 107, 255, .05);
}
.eyebrow::before { content: ''; width: 6px; height: 6px; background: var(--red); border-radius: 50%; }

.section-title {
  font-family: var(--ff-display);
  font-size: clamp(32px, 4vw, 52px);
  line-height: 1.15; font-weight: 400;
  letter-spacing: 1px;
  margin: 22px 0 18px;
}
.section-subtitle {
  font-size: 17px; color: rgba(11, 26, 58, .62);
  max-width: 640px; font-weight: 300;
}
.section-head { margin-bottom: 64px; }
.section-head.center { text-align: center; }
.section-head.center .section-subtitle { margin: 0 auto; }

/* 按钮 */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  font-size: 15px; font-weight: 700;
  padding: 14px 30px; border-radius: 10px;
  transition: all .3s cubic-bezier(.2, .8, .2, 1);
  cursor: pointer; white-space: nowrap;
}
.btn-primary {
  background: linear-gradient(135deg, var(--red-bright), var(--red-deep));
  color: #fff;
  box-shadow: var(--shadow-red);
}
.btn-primary:hover { transform: translateY(-3px); box-shadow: 0 24px 60px rgba(30, 107, 255, .38); }
.btn-ghost {
  background: transparent; color: var(--ink);
  border: 1.5px solid rgba(11, 26, 58, .2);
}
.btn-ghost:hover { border-color: var(--red); color: var(--red); transform: translateY(-2px); }
.btn-gold {
  background: linear-gradient(135deg, var(--gold), var(--red-bright));
  color: #fff; font-weight: 800;
}
.btn .arrow { transition: transform .3s; }
.btn:hover .arrow { transform: translateX(4px); }

/* ---------- 导航 ---------- */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  padding: 20px 0;
  transition: all .4s cubic-bezier(.2, .8, .2, 1);
  background: transparent;
  box-shadow: 0 2px 6px -5px #2e2e2e;
}
.nav.scrolled {
  background: rgba(255, 255, 255, .85);
  backdrop-filter: blur(20px) saturate(140%);
  -webkit-backdrop-filter: blur(20px) saturate(140%);
  border-bottom: 1px solid rgba(11, 26, 58, .06);
  padding: 14px 0;
  box-shadow: 0 8px 32px rgba(11, 26, 58, .06);
}
.nav-inner { display: flex; align-items: center; justify-content: space-between; gap: 32px; }
.brand { display: flex; align-items: center; gap: 9px; }
/* 内联 SVG + currentColor，用 color 直接控制颜色 */
.brand-logo {
  width: 30px; height: 30px;
  color: #C8232C;
  transition: color .3s;
}
.nav:not(.scrolled) .brand-logo { color: #ff5e66; }
.nav.scrolled .brand-logo { color: #e63946; }
.brand-name {
  font-family: var(--ff-display);
  font-size: 28px; font-weight: 700;
  letter-spacing: 2px;
  /*line-height: 1;*/
  color: var(--ink);
  transition: color .3s;
}
.nav:not(.scrolled) .brand-name { color: #fff; }
.nav.scrolled .brand-name { color: var(--ink); }
.nav-menu { display: flex; align-items: center; gap: 2px; }
.nav-menu a {
  font-size: 15px; font-weight: 500;
  padding: 9px 16px; border-radius: 8px;
  transition: all .25s;
}
.nav.scrolled .nav-menu a { color: rgba(11, 26, 58, .72); }
.nav:not(.scrolled) .nav-menu a { color: rgba(255, 255, 255, .88); }
.nav.scrolled .nav-menu a:hover { color: var(--red); background: rgba(30, 107, 255, .08); }
.nav:not(.scrolled) .nav-menu a:hover { color: #fff; background: rgba(255, 255, 255, .12); }
.nav-cta { display: flex; align-items: center; gap: 12px; }
.nav-cta .btn { padding: 11px 22px; font-size: 14px; }
.nav:not(.scrolled) .nav-cta .btn-ghost { color: #fff; border-color: rgba(255, 255, 255, .42); background: rgba(255, 255, 255, .06); }
.nav:not(.scrolled) .nav-cta .btn-ghost:hover { border-color: #fff; background: rgba(255, 255, 255, .16); }
.nav-toggle { display: none; flex-direction: column; gap: 5px; padding: 8px; }
.nav-toggle span { width: 24px; height: 2px; background: var(--ink); border-radius: 2px; transition: .3s; }
.nav:not(.scrolled) .nav-toggle span { background: #fff; }

/* ---------- Hero ---------- */
.hero {
  position: relative; min-height: 50vh;
  background: linear-gradient(180deg, #1677FF 0%, #0958D9 100%);
  color: var(--paper);
  padding: 140px 0 100px;
  overflow: hidden;
  display: flex; align-items: center;
}
/* 单一柔和顶部高光，克制大气 */
.hero::before {
  content: ''; position: absolute; inset: 0;
  background: radial-gradient(ellipse 60% 45% at 50% 0%, rgba(255, 255, 255, .16), transparent 70%);
  pointer-events: none;
}
/* 极淡网格底纹（科技感，弱化） */
.hero::after {
  content: ''; position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, .025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, .025) 1px, transparent 1px);
  background-size: 80px 80px;
  mask-image: radial-gradient(ellipse 80% 70% at 50% 40%, #000, transparent 80%);
  -webkit-mask-image: radial-gradient(ellipse 80% 70% at 50% 40%, #000, transparent 80%);
  pointer-events: none;
}
#particles { position: absolute; left: 0; right: 0; bottom: 0; height: 15%; width: 100%; z-index: 1; pointer-events: none; }
.hero-inner {
  position: relative; z-index: 3;
  display: grid; grid-template-columns: 1.15fr .85fr; gap: 56px; align-items: center;
  width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 24px;
}
.hero-tag {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--ff-num); font-size: 12px; font-weight: 700; letter-spacing: 3px;
  text-transform: uppercase; color: #fff;
  padding: 7px 16px; border: 1px solid rgba(255, 255, 255, .22); border-radius: 999px;
  background: rgba(255, 255, 255, .08);
  backdrop-filter: blur(6px);
}
.hero-tag::before { content: ''; width: 6px; height: 6px; background: var(--gold-soft); border-radius: 50%; box-shadow: 0 0 10px var(--gold-soft); }
.hero-title {
  font-family: var(--ff-display);
  font-size: clamp(56px, 7.5vw, 58px);
  line-height: 1.05; letter-spacing: 3px;
  margin: 22px 0 20px;
  font-weight: 400;
  color: #fff;
  font-weight: bold;
}
.hero-title .accent {
  /* color: #E63946;
  -webkit-text-fill-color: #E63946; */
  position: relative;
  display: inline-block;
}
.hero-sub {
  font-size: 18px; color: rgba(255, 255, 255, .82); font-weight: 300;
  max-width: 540px; line-height: 1.75;
  margin-bottom: 36px;
}
.hero-cta { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 44px; }
/* 主 CTA 在蓝底上用白底蓝字，更醒目大气 */
.hero-cta .btn-primary {
  padding: 15px 32px; font-size: 15px;
  background: #fff; color: #1677FF;
  box-shadow: 0 8px 24px rgba(0, 0, 0, .15);
}
.hero-cta .btn-primary:hover {
  transform: translateY(-2px);
  background: #fff;
  box-shadow: 0 12px 32px rgba(0, 0, 0, .22);
}
.hero-cta .btn-ghost { color: var(--paper); border-color: rgba(255, 255, 255, .3); background: rgba(255, 255, 255, .06); backdrop-filter: blur(6px); }
.hero-cta .btn-ghost:hover { border-color: #fff; background: rgba(255, 255, 255, .16); }
.hero-meta { display: flex; gap: 40px; padding-top: 32px; border-top: 1px solid rgba(255, 255, 255, .12); }
.hero-meta-item .num {
  font-family: var(--ff-num); font-size: 32px; font-weight: 800; color: #fff;
  line-height: 1;
}
.hero-meta-item .label { font-size: 13px; color: rgba(255, 255, 255, .65); margin-top: 8px; letter-spacing: 1px; }

/* Hero 视觉区 */
.hero-visual { 
  position: relative; 
  /* height: 540px;  */
  display: flex; 
  align-items: center; 
  justify-content: center; 
}
.hero-banner {
  /* width: 100%;  */
  max-width: 588px; height: auto; max-height: 500px;
  object-fit: cover; border-radius: 18px; display: block;
  box-shadow: 0 36px 90px rgba(0, 0, 0, .45), 0 0 0 1px rgba(255, 255, 255, .14);
  /* animation: float 6s ease-in-out infinite; */
}
.seal {
  position: relative; width: 280px; height: 280px;
  border-radius: 32px;
  background: linear-gradient(145deg, #E63946, #C8232C);
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 30px 60px rgba(230, 57, 70, .35), inset 0 2px 0 rgba(255, 255, 255, .2);
  animation: float 6s ease-in-out infinite;
}
.seal::before {
  content: ''; position: absolute; inset: 14px; border-radius: 22px;
  border: 1px solid rgba(255, 255, 255, .3);
}
.seal-mark { color: #fff; font-family: var(--ff-display); font-size: 130px; line-height: 1; }
@keyframes float { 0%, 100% { transform: translateY(0) rotate(-2deg); } 50% { transform: translateY(-16px) rotate(2deg); } }

.hero-card {
  position: absolute; padding: 13px 17px; border-radius: 12px;
  background: rgba(255, 255, 255, .14); backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid rgba(255, 255, 255, .24);
  font-size: 13px; display: flex; align-items: center; gap: 10px;
  color: #fff;
  box-shadow: 0 8px 24px rgba(0, 0, 0, .15);
  animation: floatSlow 7s ease-in-out infinite;
}
.hero-card .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--gold-soft); flex-shrink: 0; }
.hero-card.c1 { top: -10%; left: -4%; animation-delay: 0s; }
.hero-card.c2 { top: 38%; right: -15%; animation-delay: 1.5s; }
.hero-card.c3 { bottom: -12%; left: 30%; animation-delay: 3s; }
.hero-card .num { font-family: var(--ff-num); font-weight: 800; color: #fff; }
@keyframes floatSlow { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-12px); } }

.scroll-hint {
  position: absolute; bottom: 28px; left: 50%; transform: translateX(-50%);
  z-index: 3; color: rgba(255, 255, 255, .4); font-size: 12px; letter-spacing: 2px;
  display: flex; flex-direction: column; align-items: center; gap: 8px;
}
.scroll-hint .line { width: 1px; height: 36px; background: linear-gradient(var(--gold), transparent); animation: scrollLine 2s ease-in-out infinite; }
@keyframes scrollLine { 0% { transform: scaleY(0); transform-origin: top; } 50% { transform: scaleY(1); transform-origin: top; } 50.1% { transform-origin: bottom; } 100% { transform: scaleY(0); transform-origin: bottom; } }

/* ---------- 信任指标 ---------- */
.metrics { background: var(--paper); border-bottom: 1px solid var(--line); }
.metrics-grid {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 0; padding: 56px 0;
}
.metric { text-align: center; padding: 0 20px; border-right: 1px solid var(--line); }
.metric:last-child { border-right: none; }
.metric .num {
  font-family: var(--ff-num); font-size: clamp(36px, 4vw, 52px); font-weight: 800;
  color: var(--red); line-height: 1; letter-spacing: -1px;
}
.metric .num .suffix { font-size: .5em; color: var(--gold); margin-left: 2px; }
.metric .label { font-size: 14px; color: rgba(11, 26, 58, .6); margin-top: 12px; }

/* ---------- 产品矩阵 ---------- */
.products { background: var(--paper); }
.products-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.product-card {
  position: relative; padding: 40px 32px; border-radius: 20px;
  background: #fff; border: 1px solid var(--line);
  transition: all .4s cubic-bezier(.2, .8, .2, 1);
  overflow: hidden;
}
.product-card::before {
  content: ''; position: absolute; inset: 0; border-radius: 20px; padding: 1.5px;
  background: linear-gradient(135deg, var(--red), var(--gold));
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor; mask-composite: exclude;
  opacity: 0; transition: opacity .4s;
}
.product-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-md); }
.product-card:hover::before { opacity: 1; }
.product-icon {
  width: 60px; height: 60px; border-radius: 14px;
  display: flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, rgba(30, 107, 255, .1), rgba(96, 165, 250, .12));
  color: var(--red); margin-bottom: 24px;
}
.product-icon svg { width: 30px; height: 30px; }
.product-name { font-family: var(--ff-display); font-size: 26px; letter-spacing: 1px; margin-bottom: 8px; }
.product-en { font-family: var(--ff-num); font-size: 11px; letter-spacing: 3px; color: var(--gold); text-transform: uppercase; margin-bottom: 16px; }
.product-desc { font-size: 15px; color: rgba(11, 26, 58, .65); margin-bottom: 22px; line-height: 1.7; }
.product-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 26px; }
.product-tag { font-size: 12px; padding: 5px 12px; border-radius: 999px; background: var(--paper-2); color: var(--ink-2); }
.product-link { display: inline-flex; align-items: center; gap: 6px; font-weight: 700; color: var(--red); font-size: 14px; }
.product-link .arrow { transition: transform .3s; }
.product-card:hover .product-link .arrow { transform: translateX(4px); }
.product-card.featured { background: linear-gradient(145deg, var(--ink), var(--ink-2)); color: var(--paper); }
.product-card.featured .product-name { color: var(--paper); }
.product-card.featured .product-desc { color: rgba(255, 255, 255, .65); }
.product-card.featured .product-icon { background: rgba(96, 165, 250, .15); color: var(--gold); }
.product-card.featured .product-tag { background: rgba(255, 255, 255, .1); color: var(--paper); }
.product-card.featured .product-link { color: var(--gold); }
.product-card.featured .product-en { color: var(--red-bright); }

/* ---------- ERP 核心能力 ---------- */
.erp { background: var(--paper-2); }
.erp-features { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 56px; }
.erp-feature {
  background: #fff; padding: 32px 28px; border-radius: 16px;
  border: 1px solid var(--line); transition: all .35s;
}
.erp-feature:hover { border-color: var(--red); transform: translateY(-4px); box-shadow: var(--shadow-sm); }
.erp-feature .ico {
  width: 48px; height: 48px; border-radius: 12px; background: rgba(30, 107, 255, .08);
  display: flex; align-items: center; justify-content: center; color: var(--red); margin-bottom: 18px;
}
.erp-feature .ico svg { width: 24px; height: 24px; }
.erp-feature h3 { font-size: 19px; margin-bottom: 8px; font-weight: 700; }
.erp-feature p { font-size: 14px; color: rgba(11, 26, 58, .6); line-height: 1.7; }

/* ---------- AI 客服 ---------- */
.ai { background: var(--ink); color: var(--paper); overflow: hidden; }
.ai::before {
  content: ''; position: absolute; inset: 0;
  background:
    radial-gradient(ellipse 50% 40% at 15% 20%, rgba(30, 107, 255, .28), transparent 60%),
    radial-gradient(ellipse 40% 35% at 90% 80%, rgba(96, 165, 250, .14), transparent 60%);
}
.ai-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; position: relative; z-index: 2; }
.ai .section-title { color: var(--paper); }
.ai .eyebrow { color: var(--gold); border-color: rgba(96, 165, 250, .35); background: rgba(96, 165, 250, .06); }
.ai .eyebrow::before { background: var(--gold); }
.ai .section-subtitle { color: rgba(255, 255, 255, .65); }
.ai-list { margin-top: 36px; display: flex; flex-direction: column; gap: 22px; }
.ai-item { display: flex; gap: 16px; align-items: flex-start; }
.ai-item .ai-ico {
  width: 44px; height: 44px; flex-shrink: 0; border-radius: 12px;
  background: linear-gradient(135deg, var(--red), var(--red-deep));
  display: flex; align-items: center; justify-content: center; color: #fff;
}
.ai-item .ai-ico svg { width: 22px; height: 22px; }
.ai-item h4 { font-size: 17px; margin-bottom: 4px; color: var(--gold-soft); }
.ai-item p { font-size: 14px; color: rgba(255, 255, 255, .6); line-height: 1.6; }
.ai-visual {
  position: relative; padding: 32px; border-radius: 20px;
  background: rgba(18, 42, 92, .6); backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 255, 255, .1);
}
.chat-bubble {
  padding: 14px 18px; border-radius: 14px; margin-bottom: 14px; max-width: 85%;
  font-size: 14px; line-height: 1.6; color: #fff;
}
.chat-bubble.bot { background: rgba(30, 107, 255, .18); border: 1px solid rgba(30, 107, 255, .3); border-bottom-left-radius: 4px; }
.chat-bubble.user { background: rgba(96, 165, 250, .12); border: 1px solid rgba(96, 165, 250, .3); border-bottom-right-radius: 4px; margin-left: auto; }
.chat-bubble .who { font-size: 11px; opacity: .6; margin-bottom: 4px; font-family: var(--ff-num); letter-spacing: 1px; }
.chat-stat { display: flex; gap: 20px; margin-top: 18px; padding-top: 18px; border-top: 1px solid rgba(255, 255, 255, .1); }
.chat-stat .s-num { font-family: var(--ff-num); font-size: 22px; font-weight: 800; color: var(--gold); }
.chat-stat .s-label { font-size: 12px; color: rgba(255, 255, 255, .55); }

/* ---------- 工具箱 ---------- */
.toolbox { background: var(--paper); }
.toolbox-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.tool {
  position: relative; padding: 30px 22px; border-radius: 16px;
  background: #fff; border: 1px solid var(--line);
  transition: all .35s; cursor: pointer; overflow: hidden;
}
.tool::after {
  content: ''; position: absolute; top: 0; left: 0; width: 100%; height: 3px;
  background: linear-gradient(90deg, var(--red), var(--gold));
  transform: scaleX(0); transform-origin: left; transition: transform .35s;
}
.tool:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); border-color: transparent; }
.tool:hover::after { transform: scaleX(1); }
.tool-ico {
  width: 50px; height: 50px; border-radius: 12px; margin-bottom: 18px;
  background: linear-gradient(135deg, rgba(30, 107, 255, .08), rgba(96, 165, 250, .1));
  display: flex; align-items: center; justify-content: center; color: var(--red);
}
.tool-ico svg { width: 26px; height: 26px; }
.tool h4 { font-size: 17px; margin-bottom: 6px; font-weight: 700; }
.tool p { font-size: 13px; color: rgba(11, 26, 58, .55); line-height: 1.6; }
.tool .num-tag { position: absolute; top: 18px; right: 18px; font-family: var(--ff-num); font-size: 11px; color: var(--gold); font-weight: 700; opacity: .5; }

/* ---------- 平台覆盖 ---------- */
.platforms { background: var(--paper-2); }
.platforms-grid { display: flex; flex-wrap: wrap; justify-content: center; gap: 14px; margin-top: 48px; }
.platform {
  display: flex; align-items: center; gap: 10px;
  padding: 14px 26px; border-radius: 999px;
  background: #fff; border: 1px solid var(--line);
  font-size: 15px; font-weight: 700; color: var(--ink-2);
  transition: all .3s;
}
.platform:hover { border-color: var(--red); color: var(--red); transform: translateY(-3px); box-shadow: var(--shadow-sm); }
.platform .pcolor { width: 10px; height: 10px; border-radius: 50%; }

/* ---------- 数据见证 ---------- */
.data { background: var(--ink); color: var(--paper); }
.data::before {
  content: ''; position: absolute; inset: 0;
  background: radial-gradient(ellipse 60% 50% at 50% 0%, rgba(30, 107, 255, .22), transparent 60%);
}
.data-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; position: relative; z-index: 2; margin-top: 56px; }
.data-card {
  padding: 36px 30px; border-radius: 18px;
  background: rgba(18, 42, 92, .6); backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 255, 255, .1);
}
.data-card .d-num { font-family: var(--ff-num); font-size: 44px; font-weight: 800; color: var(--gold); line-height: 1; }
.data-card .d-num .unit { font-size: .4em; color: rgba(96, 165, 250, .7); margin-left: 4px; }
.data-card .d-label { font-size: 15px; color: rgba(255, 255, 255, .8); margin: 12px 0 18px; }
.data-bar { height: 6px; border-radius: 3px; background: rgba(255, 255, 255, .1); overflow: hidden; }
.data-bar .fill { height: 100%; background: linear-gradient(90deg, var(--red-bright), var(--gold)); border-radius: 3px; width: 0; transition: width 1.4s cubic-bezier(.2, .8, .2, 1); }
.data-card .d-desc { font-size: 12px; color: rgba(255, 255, 255, .45); margin-top: 10px; }

/* ---------- 客户案例 ---------- */
.cases { background: var(--paper); }
.cases-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.case-card {
  padding: 36px 30px; border-radius: 18px; background: #fff;
  border: 1px solid var(--line); position: relative; transition: all .35s;
}
.case-card:hover { box-shadow: var(--shadow-md); transform: translateY(-4px); }
.case-quote { font-family: var(--ff-display); font-size: 64px; color: var(--red); opacity: .14; line-height: 1; position: absolute; top: 16px; left: 24px; }
.case-text { font-size: 15px; color: rgba(11, 26, 58, .75); line-height: 1.8; margin-bottom: 24px; position: relative; z-index: 2; }
.case-author { display: flex; align-items: center; gap: 14px; padding-top: 20px; border-top: 1px solid var(--line); }
.case-avatar { width: 44px; height: 44px; border-radius: 50%; background: linear-gradient(135deg, var(--red), var(--gold)); display: flex; align-items: center; justify-content: center; color: #fff; font-family: var(--ff-display); font-size: 18px; }
.case-name { font-weight: 700; font-size: 15px; }
.case-role { font-size: 12px; color: rgba(11, 26, 58, .5); }
.case-tag { position: absolute; top: 28px; right: 24px; font-size: 11px; padding: 4px 10px; border-radius: 999px; background: var(--paper-2); color: var(--red); font-weight: 700; }

/* ---------- FAQ ---------- */
.faq { background: var(--paper-2); }
.faq-list { max-width: 820px; margin: 0 auto; }
.faq-item {
  background: #fff; border: 1px solid var(--line); border-radius: 14px;
  margin-bottom: 12px; overflow: hidden; transition: all .3s;
}
.faq-item.open { border-color: var(--red); box-shadow: var(--shadow-sm); }
.faq-q { padding: 22px 26px; display: flex; align-items: center; justify-content: space-between; gap: 16px; font-weight: 700; font-size: 16px; cursor: pointer; }
.faq-q .icon { width: 26px; height: 26px; flex-shrink: 0; display: flex; align-items: center; justify-content: center; border-radius: 50%; background: rgba(30, 107, 255, .1); color: var(--red); transition: transform .3s; font-size: 18px; }
.faq-item.open .faq-q .icon { transform: rotate(45deg); background: var(--red); color: #fff; }
.faq-a { max-height: 0; overflow: hidden; transition: max-height .4s ease; }
.faq-a-inner { padding: 0 26px 22px; color: rgba(11, 26, 58, .65); font-size: 14px; line-height: 1.8; }

/* ---------- 留资转化 ---------- */
.contact {
  background: linear-gradient(135deg, var(--red), var(--red-deep));
  color: #fff; position: relative; overflow: hidden;
}
.contact::before {
  content: ''; position: absolute; inset: 0;
  background:
    radial-gradient(circle at 80% 20%, rgba(96, 165, 250, .28), transparent 50%),
    radial-gradient(circle at 10% 90%, rgba(11, 26, 58, .2), transparent 50%);
}
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; position: relative; z-index: 2; }
.contact-info .section-title { color: #fff; }
.contact-info .eyebrow { color: var(--gold-soft); border-color: rgba(255, 255, 255, .3); background: rgba(255, 255, 255, .1); }
.contact-info .eyebrow::before { background: var(--gold-soft); }
.contact-info p { color: rgba(255, 255, 255, .85); font-size: 16px; line-height: 1.8; margin-bottom: 28px; }
.contact-bullets { display: flex; flex-direction: column; gap: 14px; }
.contact-bullet { display: flex; align-items: center; gap: 12px; font-size: 15px; color: rgba(255, 255, 255, .9); }
.contact-bullet .check { width: 24px; height: 24px; border-radius: 50%; background: rgba(255, 255, 255, .15); display: flex; align-items: center; justify-content: center; font-size: 13px; }
.contact-form {
  background: #fff; padding: 36px; border-radius: 20px; color: var(--ink);
  box-shadow: 0 30px 80px rgba(11, 26, 58, .25);
}
.contact-form h3 { font-family: var(--ff-display); font-size: 24px; margin-bottom: 6px; }
.contact-form .sub { font-size: 13px; color: rgba(11, 26, 58, .55); margin-bottom: 24px; }
.form-group { margin-bottom: 16px; }
.form-group label { display: block; font-size: 13px; font-weight: 700; margin-bottom: 8px; color: var(--ink-2); }
.form-group input, .form-group select {
  width: 100%; padding: 13px 16px; border-radius: 10px;
  border: 1.5px solid var(--line); font-size: 15px; font-family: inherit;
  background: var(--paper); color: var(--ink); transition: all .25s;
}
.form-group input:focus, .form-group select:focus { outline: none; border-color: var(--red); background: #fff; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.form-submit { width: 100%; margin-top: 8px; }
.form-note { font-size: 12px; color: rgba(11, 26, 58, .45); margin-top: 14px; text-align: center; }

/* Toast */
.toast {
  position: fixed; top: 90px; left: 50%; transform: translateX(-50%) translateY(-20px);
  background: var(--ink); color: var(--paper); padding: 14px 24px; border-radius: 12px;
  font-size: 14px; box-shadow: var(--shadow-md); z-index: 200;
  opacity: 0; pointer-events: none; transition: all .4s;
  display: flex; align-items: center; gap: 10px;
  border: 1px solid var(--gold);
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }
.toast .check { color: var(--gold); }

/* ---------- 页脚 ---------- */
.footer { background: var(--ink); color: rgba(255, 255, 255, .65); padding: 80px 0 32px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 48px; margin-bottom: 56px; }
.footer-brand .brand-logo { height: 48px; margin-bottom: 18px; }
.footer-brand .brand-name { color: var(--paper); }
.footer-brand p { font-size: 14px; line-height: 1.8; margin-top: 8px; max-width: 320px; }
.footer-col h5 { color: var(--paper); font-size: 15px; margin-bottom: 18px; font-weight: 700; }
.footer-col ul li { margin-bottom: 12px; }
.footer-col ul li a { font-size: 14px; transition: color .25s; }
.footer-col ul li a:hover { color: var(--gold); }
.footer-bottom { border-top: 1px solid var(--line-dark); padding-top: 28px; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px; font-size: 13px; }
.footer-bottom a:hover { color: var(--gold); }

/* ---------- 动画 ---------- */
.reveal { opacity: 0; transform: translateY(36px); transition: opacity .8s cubic-bezier(.2, .8, .2, 1), transform .8s cubic-bezier(.2, .8, .2, 1); }
.reveal.in { opacity: 1; transform: none; }
.reveal[data-delay="1"] { transition-delay: .1s; }
.reveal[data-delay="2"] { transition-delay: .2s; }
.reveal[data-delay="3"] { transition-delay: .3s; }
.reveal[data-delay="4"] { transition-delay: .4s; }

@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: .4; } }

/* ---------- 响应式 ---------- */
@media (max-width: 1024px) {
  .hero-inner { grid-template-columns: 1fr; gap: 32px; }
  .hero-visual { height: 360px; }
  .seal { width: 240px; height: 240px; }
  .seal-mark { font-size: 110px; }
  .ai-grid, .contact-grid { grid-template-columns: 1fr; gap: 40px; }
  .data-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  .section { padding: 80px 0; }
  .nav-menu, .nav-cta .btn-ghost { display: none; }
  .nav-toggle { display: flex; }
  .nav-menu.open {
    display: flex; flex-direction: column; position: absolute; top: 100%; left: 0; right: 0;
    background: #fff; padding: 16px 24px; gap: 0; border-bottom: 1px solid var(--line); box-shadow: var(--shadow-md);
  }
  .nav-menu.open a { padding: 12px 0; border-bottom: 1px solid var(--line); color: rgba(11, 26, 58, .75); }
  .metrics-grid { grid-template-columns: 1fr 1fr; gap: 32px 0; }
  .metric:nth-child(2) { border-right: none; }
  .products-grid, .erp-features, .cases-grid { grid-template-columns: 1fr; }
  .toolbox-grid { grid-template-columns: 1fr 1fr; }
  .hero-meta { gap: 20px; flex-wrap: wrap; }
  .form-row { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; text-align: center; }
}