/* ==========================================================================
   灵川智宇 · 公司官网 2026
   设计语言参照《公司官网完整网页模版》(Finsweet 风格)
   深藏青 #1C1E53 · 紫蓝 #2405F2 · 柠檬黄 #FCD980 · 浅灰蓝 #F4F6FC
   ========================================================================== */

:root {
  /* 色板（取自模版） */
  --navy: #1c1e53;
  --navy-deep: #14164a;
  --navy-soft: #292b5d;
  --blue: #2405f2;
  --violet: #5239fa;
  --violet-2: #6b5bff;
  --yellow: #fcd980;
  --yellow-deep: #f7ce5b;
  --dark: #282938;
  --gray: #404353;
  --muted: rgba(40, 41, 56, 0.7);
  --muted-2: rgba(40, 41, 56, 0.55);
  --light: #f4f6fc;
  --light-2: #eef1fb;
  --off-white: #fcfcff;
  --white: #ffffff;
  --mint: #7fe0ab;
  --red: #e5484d;
  --amber: #f5a524;
  --line: rgba(28, 30, 83, 0.12);
  --line-soft: rgba(28, 30, 83, 0.08);

  /* 字体 */
  --font: "Poppins", "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;

  /* 布局 */
  --container: 1240px;
  --radius: 8px;
  --radius-lg: 14px;
  --shadow-sm: 0 2px 12px rgba(28, 30, 83, 0.06);
  --shadow-md: 0 10px 34px rgba(28, 30, 83, 0.1);
  --shadow-lg: 0 24px 60px rgba(28, 30, 83, 0.16);
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font);
  color: var(--dark);
  background: var(--white);
  line-height: 1.7;
  font-size: 16px;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { font-family: inherit; background: none; border: 0; cursor: pointer; color: inherit; }
::selection { background: rgba(82, 57, 250, 0.18); }

h1, h2, h3, h4 { line-height: 1.25; font-weight: 600; letter-spacing: -0.01em; }

.container { max-width: var(--container); margin: 0 auto; padding: 0 32px; }

/* ---------- 文本工具 ---------- */
.grad-text {
  background: linear-gradient(92deg, #8f7bff 0%, #b3a6ff 45%, var(--yellow) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.hl-y { color: var(--yellow); }
.en-label {
  font-size: 12px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  font-weight: 600;
  color: var(--violet);
}

/* ==========================================================================
   按钮
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 15px 34px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.2;
  transition: transform 0.25s var(--ease), box-shadow 0.25s var(--ease), background 0.25s var(--ease), color 0.25s var(--ease), border-color 0.25s var(--ease);
  will-change: transform;
}
.btn:active { transform: translateY(1px) scale(0.99); }
.btn-yellow { background: var(--yellow); color: var(--dark); box-shadow: 0 6px 22px rgba(252, 217, 128, 0.35); }
.btn-yellow:hover { background: var(--yellow-deep); transform: translateY(-2px); box-shadow: 0 12px 30px rgba(252, 217, 128, 0.5); }
.btn-dark { background: var(--dark); color: var(--white); }
.btn-dark:hover { background: #3a3c52; transform: translateY(-2px); box-shadow: 0 12px 28px rgba(40, 41, 56, 0.3); }
.btn-ghost-navy { border: 1.5px solid rgba(255, 255, 255, 0.32); color: var(--white); padding: 13px 30px; }
.btn-ghost-navy:hover { border-color: var(--yellow); color: var(--yellow); transform: translateY(-2px); }
.btn-outline-navy { border: 1.5px solid var(--navy); color: var(--navy); padding: 13px 30px; background: transparent; }
.btn-outline-navy:hover { background: var(--navy); color: var(--white); transform: translateY(-2px); }
.btn-violet { background: var(--violet); color: var(--white); box-shadow: 0 8px 24px rgba(82, 57, 250, 0.35); }
.btn-violet:hover { background: var(--blue); transform: translateY(-2px); }

/* 箭头链接（模版 "View More ——" 样式） */
.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-weight: 600;
  font-size: 15px;
  color: var(--violet);
  transition: gap 0.25s var(--ease), color 0.25s;
}
.link-arrow .arrow-line { width: 26px; height: 2px; background: currentColor; transition: width 0.25s var(--ease); }
.link-arrow:hover { gap: 16px; }
.link-arrow.on-dark { color: var(--yellow); }

/* ==========================================================================
   导航
   ========================================================================== */
.nav {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 200;
  background: var(--navy);
  transition: box-shadow 0.3s, background 0.3s;
}
.nav.scrolled { background: rgba(20, 22, 74, 0.92); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px); box-shadow: 0 8px 30px rgba(10, 11, 40, 0.35); }
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: 76px; gap: 24px; }

.brand { display: inline-flex; align-items: center; gap: 12px; color: var(--white); }
.brand-logo { width: 38px; height: 38px; border-radius: 9px; }
.brand-name { display: inline-flex; flex-direction: column; font-size: 19px; font-weight: 700; letter-spacing: 0.02em; line-height: 1.1; }
.brand-en { display: flex; justify-content: space-between; margin-top: 3px; font-size: 7.5px; font-weight: 600; opacity: 0.62; line-height: 1; }
.brand-en i { font-style: normal; }
.brand-en i.sep { opacity: 0.45; }

.menu { display: flex; align-items: center; gap: 6px; }
.menu > a, .menu-drop > .drop-toggle {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 10px 16px;
  color: rgba(255, 255, 255, 0.86);
  font-size: 15px;
  font-weight: 500;
  border-radius: 999px;
  transition: color 0.2s, background 0.2s;
}
.menu > a:hover, .menu-drop > .drop-toggle:hover, .menu > a.active, .menu-drop.active > .drop-toggle { color: var(--yellow); background: rgba(255, 255, 255, 0.06); }
.menu > a.active { background: rgba(252, 217, 128, 0.12); }
.drop-toggle .chev { width: 11px; height: 11px; transition: transform 0.25s; }
.menu-drop.open > .drop-toggle .chev, .menu-drop:hover > .drop-toggle .chev { transform: rotate(180deg); }

/* 下拉 */
.menu-drop { position: relative; }
.dropdown {
  position: absolute;
  top: calc(100% + 14px);
  left: 50%;
  transform: translateX(-50%) translateY(10px);
  width: 430px;
  background: var(--white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: 12px;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.28s var(--ease), transform 0.28s var(--ease), visibility 0.28s;
}
.dropdown::before { content: ""; position: absolute; top: -14px; left: 0; right: 0; height: 14px; }
.menu-drop:hover .dropdown, .menu-drop.open .dropdown { opacity: 1; visibility: visible; transform: translateX(-50%) translateY(0); }
.dropdown-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 4px; }
.dropdown-item {
  display: flex;
  gap: 12px;
  padding: 11px 12px;
  border-radius: 10px;
  transition: background 0.2s;
  align-items: flex-start;
}
.dropdown-item:hover { background: var(--light); }
.dropdown-item .di-icon {
  flex: none;
  width: 38px; height: 38px;
  border-radius: 10px;
  display: grid;
  place-items: center;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.04em;
  background: linear-gradient(135deg, var(--violet), var(--blue));
  color: #fff;
  box-shadow: 0 4px 12px rgba(82, 57, 250, 0.3);
}
.dropdown-item strong { display: block; font-size: 14px; font-weight: 600; color: var(--dark); line-height: 1.35; }
.dropdown-item span { display: block; font-size: 12px; color: var(--muted-2); line-height: 1.5; margin-top: 1px; }
.dropdown-all {
  display: flex; justify-content: center; align-items: center; gap: 8px;
  margin-top: 8px; padding: 11px;
  border-top: 1px solid var(--line-soft);
  font-size: 13.5px; font-weight: 600; color: var(--violet);
  transition: background 0.2s;
}
.dropdown-all:hover { background: var(--light); }

.nav-cta { display: flex; align-items: center; gap: 14px; }
.nav-cta .btn { padding: 11px 26px; font-size: 14px; }

/* 汉堡 */
.hamburger { display: none; width: 44px; height: 44px; border-radius: 10px; position: relative; z-index: 320; }
.hamburger span { display: block; width: 22px; height: 2px; background: var(--white); margin: 5px auto; border-radius: 2px; transition: transform 0.3s, opacity 0.3s; }
.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* 移动端抽屉 */
.mobile-drawer {
  position: fixed; inset: 0; z-index: 150;
  background: var(--navy-deep);
  padding: 110px 32px 40px;
  display: flex; flex-direction: column; gap: 6px;
  transform: translateX(100%);
  transition: transform 0.4s var(--ease);
  overflow-y: auto;
}
.mobile-drawer.open { transform: translateX(0); }
.mobile-drawer > a:not(.btn), .mobile-drawer .drawer-group > button {
  color: var(--white); font-size: 19px; font-weight: 600;
  padding: 13px 0; border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  text-align: left; width: 100%; display: flex; justify-content: space-between; align-items: center;
}
.drawer-group { }
.drawer-sub { display: none; padding: 8px 0 14px 14px; flex-direction: column; gap: 4px; }
.drawer-group.open .drawer-sub { display: flex; }
.drawer-sub a { color: rgba(255, 255, 255, 0.75); font-size: 15.5px; padding: 7px 0; }
.drawer-sub a::before { content: "·"; color: var(--yellow); margin-right: 10px; }
.mobile-drawer .btn { margin-top: 26px; }

/* ==========================================================================
   Hero（深藏青首屏 + 动效背景）
   ========================================================================== */
.hero {
  position: relative;
  background: var(--navy);
  color: var(--white);
  padding: 168px 0 110px;
  overflow: hidden;
}
.hero-bg { position: absolute; inset: 0; pointer-events: none; }
.hero-bg .grid {
  position: absolute; inset: -2px;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.045) 1px, transparent 1px);
  background-size: 54px 54px;
  mask-image: radial-gradient(ellipse 90% 80% at 50% 30%, #000 30%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse 90% 80% at 50% 30%, #000 30%, transparent 75%);
}
.hero-bg .glow { position: absolute; border-radius: 50%; filter: blur(90px); opacity: 0.5; animation: glowFloat 11s ease-in-out infinite alternate; }
.hero-bg .glow-1 { width: 560px; height: 560px; left: -160px; top: -180px; background: radial-gradient(circle, rgba(82, 57, 250, 0.55), transparent 65%); }
.hero-bg .glow-2 { width: 520px; height: 520px; right: -140px; top: -60px; background: radial-gradient(circle, rgba(36, 5, 242, 0.4), transparent 65%); animation-delay: -4s; }
.hero-bg .glow-3 { width: 420px; height: 420px; left: 38%; bottom: -260px; background: radial-gradient(circle, rgba(252, 217, 128, 0.16), transparent 65%); animation-delay: -8s; }
@keyframes glowFloat {
  from { transform: translate3d(0, 0, 0) scale(1); }
  to { transform: translate3d(40px, 26px, 0) scale(1.12); }
}
#particle-canvas { position: absolute; inset: 0; width: 100%; height: 100%; opacity: 0.55; }

.hero-inner { position: relative; z-index: 2; display: grid; grid-template-columns: 1.02fr 0.98fr; gap: 56px; align-items: center; }
.hero-badge {
  display: flex; width: 100%; max-width: 560px;
  align-items: center; justify-content: center; gap: 14px;
  padding: 10px 22px; border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  background: rgba(255, 255, 255, 0.06);
  font-size: 13.5px; color: rgba(255, 255, 255, 0.85);
  margin: 30px auto 0;
}
.hero-badge .sep-dot { flex: none; width: 6px; height: 6px; border-radius: 50%; background: var(--mint); opacity: 0.9; }

/* 产品家族分组标题 */
/* 手机三联屏（已落地案例展示） */
.phone-trio { position: relative; display: flex; justify-content: center; align-items: flex-end; padding-top: 26px; }
.phone {
  border-radius: 26px;
  border: 5px solid #0d0f2e;
  overflow: hidden;
  background: #fff;
  box-shadow: 0 34px 70px rgba(6, 7, 30, 0.55);
  position: relative;
}
.phone::after { content: ""; position: absolute; top: 8px; left: 50%; transform: translateX(-50%); width: 34%; height: 14px; border-radius: 999px; background: #0d0f2e; }
.phone img { width: 100%; height: 100%; object-fit: cover; object-position: top; display: block; }
.phone.main { width: 208px; height: 436px; z-index: 3; }
.phone.side { width: 168px; height: 356px; opacity: 0.96; z-index: 2; }
.phone.side.left { transform: rotate(-7deg) translateY(14px); margin-right: -34px; }
.phone.side.right { transform: rotate(7deg) translateY(14px); margin-left: -34px; }
.case-flag-float {
  position: absolute; top: -4px; left: -10px; z-index: 5;
  display: inline-flex; align-items: center; gap: 8px;
  padding: 8px 17px; border-radius: 999px;
  background: #0d8a52;
  color: #fff; font-size: 13px; font-weight: 700; letter-spacing: 0.04em;
  box-shadow: 0 12px 30px rgba(13, 138, 82, 0.45);
  animation: floatY 6s ease-in-out infinite;
}
.case-mini { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin-top: 22px; }
.case-mini div {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 10px; padding: 10px 12px; text-align: center;
  font-size: 11.5px; font-weight: 600; color: rgba(255, 255, 255, 0.85); line-height: 1.45;
}
.case-mini div b { display: block; color: var(--yellow); font-size: 13px; margin-bottom: 2px; }

.pf-group { display: flex; align-items: center; gap: 14px; margin: 0 0 18px; }

/* 需求演化胶囊 */
.evolve-row { display: flex; flex-wrap: wrap; justify-content: center; gap: 14px; margin-top: 36px; }
.ph-stats.compact { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; margin-top: 44px; }
.ph-stats.compact .ph-stat { padding: 14px 16px; border-radius: 12px; }
.ph-stats.compact .ph-stat strong { font-size: 21px; }
.ph-stats.compact .ph-stat { font-size: 12px; }
.ev-chip {
  padding: 11px 24px; border-radius: 999px;
  background: var(--white); border: 1.5px solid var(--line);
  font-size: 14px; color: var(--muted);
  box-shadow: var(--shadow-sm);
  transition: transform 0.25s var(--ease), border-color 0.25s;
}
.ev-chip:hover { transform: translateY(-2px); border-color: var(--violet); }
.ev-chip b { color: var(--violet); }
.evolve-note { text-align: center; margin-top: 20px; color: var(--muted); font-size: 14.5px; }
.evolve-note b { color: var(--navy); }

/* 方案包深色面板 */
.pack-panel {
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, var(--navy) 0%, #221d6e 100%);
  color: var(--white);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  position: relative;
}
.pack-panel::before {
  content: ""; position: absolute; inset: 0;
  background:
    radial-gradient(circle at 88% 12%, rgba(252, 217, 128, 0.18), transparent 45%),
    radial-gradient(circle at 8% 90%, rgba(82, 57, 250, 0.4), transparent 50%);
  pointer-events: none;
}
.pack-cols { display: grid; grid-template-columns: 1.05fr 0.95fr; position: relative; }
.pack-col { padding: 36px 38px; }
.pack-col + .pack-col { border-left: 1px solid rgba(255, 255, 255, 0.14); background: rgba(255, 255, 255, 0.03); }
.pack-col h4 { font-size: 12px; letter-spacing: 0.2em; color: var(--yellow); font-weight: 700; margin-bottom: 18px; }
.pack-col ul { display: grid; gap: 14px; }
.pack-col li { padding-left: 18px; position: relative; }
.pack-col li::before { content: "▸"; position: absolute; left: 0; color: var(--yellow); font-weight: 700; }
.pack-col li b { display: block; font-size: 15px; color: var(--white); line-height: 1.4; }
.pack-col li span { display: block; font-size: 12.5px; color: rgba(255, 255, 255, 0.6); margin-top: 2px; }
.pack-col .pack-note { margin-top: 22px; padding-top: 16px; border-top: 1px dashed rgba(255, 255, 255, 0.18); font-size: 12.5px; color: rgba(255, 255, 255, 0.65); line-height: 1.7; }
.pack-col .pack-note b { color: var(--yellow); }

/* SP 双图错落 */
.sp-duo { display: grid; grid-template-columns: 1.06fr 0.94fr; margin-top: 48px; align-items: start; }
.sp-duo .sp-item { transition: transform 0.35s var(--ease); }
.sp-duo .sp-item:first-child { transform: rotate(-1.4deg); z-index: 2; }
.sp-duo .sp-item:last-child { transform: rotate(1.3deg) translateY(54px); margin-left: -34px; }
.sp-duo .sp-item:hover { transform: rotate(0deg) translateY(-4px); z-index: 3; }
.sp-duo + * { margin-top: 80px; }.pf-group .aud-pill { position: static; font-size: 12px; padding: 5px 15px; }
.pf-group .aud-gov { background: var(--yellow); border-color: var(--yellow-deep); color: #4a3a00; }
.pf-group .aud-smb { background: #c9f2dd; border-color: #6fd3a2; color: #0c6b3d; }
.pf-group .aud-custom { background: var(--navy); border-color: var(--navy); color: var(--white); }
.pf-group-note { color: var(--muted); font-size: 13px; font-weight: 500; }
.grid-3 + .pf-group { margin-top: 46px; }

/* 证明卡与 POC 网格间距 */
.proof-grid + .poc-grid { margin-top: 52px; }
.hero-badge .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--mint); box-shadow: 0 0 0 0 rgba(127, 224, 171, 0.5); animation: pulseDot 2s infinite; }
@keyframes pulseDot {
  0% { box-shadow: 0 0 0 0 rgba(127, 224, 171, 0.55); }
  70% { box-shadow: 0 0 0 9px rgba(127, 224, 171, 0); }
  100% { box-shadow: 0 0 0 0 rgba(127, 224, 171, 0); }
}
.hero h1 { font-size: clamp(24px, 4vw, 52px); font-weight: 700; letter-spacing: -0.015em; line-height: 1.24; }
.h1-line { display: block; white-space: nowrap; }
.hero h1 .hl { color: var(--yellow); }
.hero .hero-sub { margin-top: 20px; font-size: 18px; color: rgba(255, 255, 255, 0.82); max-width: 34em; }
.hero-sub .hl-y { color: var(--yellow); }

/* 首屏领域标签（两行三列等宽） */
.hero-domains { margin-top: 22px; max-width: 560px; }
.hd-label { display: block; font-size: 11.5px; letter-spacing: 0.2em; color: rgba(255, 255, 255, 0.45); font-weight: 600; margin-bottom: 9px; }
.hd-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; }
.hd-chip {
  display: block; text-align: center;
  font-size: 13px; font-weight: 600; color: rgba(255, 255, 255, 0.88);
  padding: 6px 6px; border-radius: 999px;
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid rgba(255, 255, 255, 0.16);
  transition: border-color 0.25s, background 0.25s, transform 0.25s var(--ease);
}
.hd-chip:hover { border-color: rgba(252, 217, 128, 0.55); background: rgba(252, 217, 128, 0.08); transform: translateY(-2px); }

/* 首屏双价值卡 */
.hero-values { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-top: 16px; max-width: 560px; }
.hv-card {
  display: flex; gap: 13px; align-items: center;
  padding: 14px 17px; border-radius: 12px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.14);
  backdrop-filter: blur(6px);
  transition: transform 0.3s var(--ease), border-color 0.3s;
}
.hv-card:hover { transform: translateY(-3px); border-color: rgba(252, 217, 128, 0.45); }
.hv-ico { flex: none; width: 40px; height: 40px; border-radius: 10px; display: grid; place-items: center; font-size: 19px; }
.hv-ico-staff { background: linear-gradient(135deg, var(--violet), var(--blue)); box-shadow: 0 6px 16px rgba(82, 57, 250, 0.35); }
.hv-ico-boss { background: linear-gradient(135deg, #ffe08a, var(--yellow-deep)); box-shadow: 0 6px 16px rgba(252, 217, 128, 0.35); }
.hv-card b { display: block; font-size: 15.5px; font-weight: 700; color: var(--yellow); line-height: 1.35; }
.hv-card small { display: block; font-size: 12.5px; color: rgba(255, 255, 255, 0.62); line-height: 1.5; margin-top: 2px; }
.hero-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 28px; margin-top: 40px; }
.hero-note { margin-top: 26px; font-size: 13.5px; color: rgba(255, 255, 255, 0.55); display: flex; flex-wrap: wrap; gap: 8px 22px; }
.hero-note span { display: inline-flex; align-items: center; gap: 8px; }
.hero-note svg { width: 15px; height: 15px; color: var(--mint); }

/* 首屏数字条 */
.hero-stats {
  position: relative; z-index: 2;
  margin-top: 76px;
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px;
}
.hstat {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-lg);
  padding: 22px 24px;
  backdrop-filter: blur(6px);
  transition: transform 0.3s var(--ease), background 0.3s, border-color 0.3s;
}
.hstat:hover { transform: translateY(-5px); background: rgba(255, 255, 255, 0.09); border-color: rgba(252, 217, 128, 0.4); }
.hstat { padding: 30px 30px 26px; }
.hstat strong { display: block; font-size: 58px; font-weight: 700; color: var(--yellow); line-height: 1; letter-spacing: -0.02em; }
.hstat strong small { font-size: 22px; font-weight: 700; margin-left: 3px; }
.hstat b { display: block; margin-top: 12px; font-size: 15.5px; font-weight: 700; color: var(--white); }
.hstat > span { display: block; margin-top: 4px; font-size: 12.5px; color: rgba(255, 255, 255, 0.55); }

/* ---------- Hero 右侧：AI 对话演示窗口 ---------- */
.hero-visual { position: relative; }
.chat-window {
  position: relative;
  border-radius: 16px;
  background: linear-gradient(160deg, rgba(255, 255, 255, 0.1), rgba(255, 255, 255, 0.04));
  border: 1px solid rgba(255, 255, 255, 0.16);
  box-shadow: 0 40px 90px rgba(8, 9, 34, 0.55);
  overflow: hidden;
  backdrop-filter: blur(8px);
  animation: floatY 7s ease-in-out infinite;
}
@keyframes floatY { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-12px); } }
.chat-titlebar {
  display: flex; align-items: center; gap: 8px;
  padding: 13px 18px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(255, 255, 255, 0.05);
}
.chat-titlebar .tl { width: 11px; height: 11px; border-radius: 50%; }
.tl.r { background: #ff8f8f; } .tl.y { background: var(--yellow); } .tl.g { background: #7fe0ab; }
.chat-titlebar .title { margin-left: 10px; font-size: 12.5px; color: rgba(255, 255, 255, 0.6); letter-spacing: 0.04em; }
.chat-body { padding: 22px 20px 18px; display: flex; flex-direction: column; gap: 14px; height: 470px; overflow: hidden; justify-content: flex-start; }
.msg { max-width: 88%; padding: 12px 16px; border-radius: 14px; font-size: 13.5px; line-height: 1.65; opacity: 0; transform: translateY(12px); transition: opacity 0.5s, transform 0.5s; }
.msg.show { opacity: 1; transform: translateY(0); }
.msg.user { align-self: flex-end; background: var(--violet); color: #fff; border-bottom-right-radius: 4px; }
.msg.ai { align-self: flex-start; background: rgba(255, 255, 255, 0.1); color: rgba(255, 255, 255, 0.92); border-bottom-left-radius: 4px; }
.msg.ai .cite { display: inline-block; margin: 0 2px; padding: 1px 7px; border-radius: 6px; font-size: 11px; background: rgba(252, 217, 128, 0.16); color: var(--yellow); border: 1px solid rgba(252, 217, 128, 0.35); }
.msg .ok-row { display: flex; align-items: center; gap: 8px; margin-top: 10px; padding-top: 10px; border-top: 1px dashed rgba(255, 255, 255, 0.18); font-size: 12px; color: var(--mint); }
.typing { display: inline-flex; gap: 5px; align-items: center; height: 18px; }
.typing i { width: 6px; height: 6px; border-radius: 50%; background: rgba(255, 255, 255, 0.7); animation: typingB 1.2s infinite; }
.typing i:nth-child(2) { animation-delay: 0.15s; }
.typing i:nth-child(3) { animation-delay: 0.3s; }
@keyframes typingB { 0%, 60%, 100% { transform: translateY(0); opacity: 0.4; } 30% { transform: translateY(-5px); opacity: 1; } }
.chat-cursor { display: inline-block; width: 7px; height: 14px; background: var(--yellow); margin-left: 3px; vertical-align: -2px; animation: caret 0.9s steps(1) infinite; }
@keyframes caret { 50% { opacity: 0; } }

/* 悬浮小卡 */
.float-chip {
  position: absolute; z-index: 3;
  display: flex; align-items: center; gap: 10px;
  background: var(--white);
  color: var(--dark);
  border-radius: 12px;
  padding: 12px 16px;
  font-size: 12.5px; font-weight: 600;
  box-shadow: var(--shadow-lg);
  animation: floatY 6s ease-in-out infinite;
}
.float-chip .fc-ico { width: 34px; height: 34px; border-radius: 9px; display: grid; place-items: center; font-size: 16px; background: var(--light); }
.float-chip small { display: block; font-weight: 500; color: var(--muted-2); font-size: 11px; }
.chip-a { right: -14px; top: 44px; animation-delay: -2s; }
.chip-b { left: -26px; bottom: 52px; animation-delay: -4s; }

/* ==========================================================================
   通用 Section
   ========================================================================== */
.section { padding: 110px 0; }
.section-tight { padding: 84px 0; }
.bg-light { background: var(--light); }
.bg-off { background: var(--off-white); }
.bg-navy { background: var(--navy); color: var(--white); }

.section-head { max-width: 720px; margin: 0 auto 58px; text-align: center; }
.section-head.left { margin: 0 0 48px; text-align: left; }
.section-head .hl-y { color: var(--yellow); }
.en-label { display: inline-block; margin-bottom: 14px; }
.section-head h2 { font-size: clamp(28px, 3.2vw, 40px); font-weight: 700; color: var(--dark); }
.section-head h2.h2-nowrap { white-space: nowrap; font-size: clamp(26px, 2.9vw, 36px); }
@media (max-width: 768px) { .section-head h2.h2-nowrap { white-space: normal; } }
.bg-navy .section-head h2 { color: var(--white); }
.section-head p { margin-top: 16px; color: var(--muted); font-size: 16.5px; }
.bg-navy .section-head p { color: rgba(255, 255, 255, 0.72); }

/* ==========================================================================
   卡片
   ========================================================================== */
.card {
  background: var(--white);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  border: 1px solid transparent;
  transition: transform 0.32s var(--ease), box-shadow 0.32s var(--ease), border-color 0.32s;
}
.card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); border-color: rgba(82, 57, 250, 0.14); }

.card-lg { border-radius: var(--radius-lg); }

/* 图标方块（模版渐变编号方块风格） */
.sq-icon {
  position: relative;
  width: 52px; height: 52px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--violet), var(--blue));
  color: #fff;
  display: grid; place-items: center;
  font-weight: 700; font-size: 18px;
  box-shadow: 0 8px 20px rgba(82, 57, 250, 0.28);
}
.sq-icon::after {
  content: "";
  position: absolute; left: -5px; bottom: -5px;
  width: 22px; height: 22px; border-radius: 7px;
  background: var(--yellow);
  z-index: -1;
}
.sq-icon svg { width: 24px; height: 24px; }
.sq-icon.sm { width: 42px; height: 42px; border-radius: 10px; }
.sq-icon.yellow { background: linear-gradient(135deg, #ffe08a, var(--yellow-deep)); color: var(--dark); box-shadow: 0 8px 20px rgba(252, 217, 128, 0.4); }
.sq-icon.navy { background: linear-gradient(135deg, var(--navy), #2a2c68); box-shadow: 0 8px 20px rgba(28, 30, 83, 0.3); }

/* ---------- 三列功能卡 ---------- */
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 26px; }

.feat-card { padding: 34px 30px; }
.feat-card h3 { margin-top: 22px; font-size: 19px; font-weight: 700; }
.feat-card p { margin-top: 12px; color: var(--muted); font-size: 14.5px; }
.feat-card .tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 18px; }
.tag { font-size: 12px; font-weight: 600; color: var(--violet); background: rgba(82, 57, 250, 0.08); border: 1px solid rgba(82, 57, 250, 0.18); padding: 4px 12px; border-radius: 999px; }
.tag.gold { color: #8a6d1a; background: rgba(252, 217, 128, 0.18); border-color: rgba(230, 190, 80, 0.5); }
.tag.mint { color: #17864e; background: rgba(127, 224, 171, 0.16); border-color: rgba(60, 180, 120, 0.35); }

/* ==========================================================================
   产品家族卡（Home / Products）
   ========================================================================== */
.prod-card { overflow: hidden; display: flex; flex-direction: column; }
.prod-visual {
  position: relative;
  height: 190px;
  display: grid; place-items: center;
  overflow: hidden;
}
.pv-mark {
  display: flex; flex-direction: column; align-items: center; gap: 9px;
  color: rgba(255, 255, 255, 0.96);
  transition: transform 0.4s var(--ease);
  text-shadow: 0 10px 28px rgba(10, 11, 40, 0.35);
}
.prod-card:hover .pv-mark { transform: scale(1.08); }
.pv-mark b { font-size: 56px; font-weight: 700; line-height: 1; letter-spacing: 0.01em; }
.pv-mark small { font-size: 10.5px; font-weight: 600; letter-spacing: 0.3em; text-indent: 0.3em; text-transform: uppercase; color: rgba(255, 255, 255, 0.68); }

/* 客群角标 */
.aud-pill {
  position: absolute; top: 13px; left: 13px; z-index: 2;
  font-size: 11px; font-weight: 700; letter-spacing: 0.05em;
  padding: 4px 12px; border-radius: 999px;
  backdrop-filter: blur(4px);
}
.aud-gov { background: rgba(252, 217, 128, 0.16); border: 1px solid rgba(252, 217, 128, 0.55); color: var(--yellow); }
.aud-smb { background: rgba(127, 224, 171, 0.14); border: 1px solid rgba(127, 224, 171, 0.55); color: var(--mint); }
.aud-custom { background: rgba(255, 255, 255, 0.12); border: 1px solid rgba(255, 255, 255, 0.4); color: var(--white); }

/* 证明卡（一平台 N 场景） */
.proof-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.proof-card {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.13);
  border-radius: var(--radius-lg);
  padding: 30px 28px;
  transition: transform 0.3s var(--ease), border-color 0.3s;
}
.proof-card:hover { transform: translateY(-5px); border-color: rgba(252, 217, 128, 0.45); }
.proof-badge {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 7px 16px; border-radius: 999px;
  background: rgba(252, 217, 128, 0.14);
  border: 1px solid rgba(252, 217, 128, 0.45);
  color: var(--yellow);
  font-size: 13.5px; font-weight: 700;
}
.proof-num { display: block; font-size: 52px; font-weight: 700; color: var(--yellow); line-height: 1; letter-spacing: -0.02em; }
.proof-card b { display: block; margin-top: 14px; font-size: 17px; font-weight: 700; color: var(--white); line-height: 1.45; }
.proof-card small { display: block; margin-top: 8px; font-size: 12.5px; color: rgba(255, 255, 255, 0.55); line-height: 1.6; }
.link-chip-row { display: flex; flex-wrap: wrap; justify-content: center; align-items: center; gap: 12px; margin-top: 40px; }
.link-chip {
  font-size: 14px; font-weight: 600; color: rgba(255, 255, 255, 0.85);
  padding: 10px 24px; border-radius: 999px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.2);
  transition: border-color 0.25s, color 0.25s, transform 0.25s var(--ease);
}
.link-chip:hover { border-color: var(--yellow); color: var(--yellow); transform: translateY(-2px); }

/* 商业模式卡：等高 + 按钮沉底 */
.model-card { display: flex; flex-direction: column; }
.model-card .checklist { flex: 1; }
.model-card > div:last-of-type { margin-top: auto; }

/* 部署类型小胶囊 */
.pill-type { display: inline-block; padding: 3px 12px; border-radius: 999px; font-size: 12px; font-weight: 700; white-space: nowrap; }
.pill-type.std { background: rgba(82, 57, 250, 0.08); border: 1px solid rgba(82, 57, 250, 0.3); color: var(--violet); }
.pill-type.cust { background: rgba(252, 217, 128, 0.25); border: 1px solid rgba(214, 170, 40, 0.55); color: #8a6d1a; }

/* 铁三角角色卡 */
.role-tag { display: block; margin-top: 22px; font-size: 12.5px; font-weight: 700; letter-spacing: 0.12em; color: var(--violet); }
.feat-card h3.role-head { margin-top: 8px; font-size: 20px; line-height: 1.4; }
.feat-card p.role-line { margin-top: 10px; font-size: 14px; }

/* 信任工程核心句 */
.trust-core { margin-top: 14px; font-size: 16.5px; font-weight: 600; color: var(--dark); line-height: 1.7; }
.trust-core b { color: var(--violet); }
.prod-visual::before {
  content: "";
  position: absolute; inset: 0;
  background:
    linear-gradient(rgba(255, 255, 255, 0.14) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.14) 1px, transparent 1px);
  background-size: 30px 30px;
  mask-image: radial-gradient(circle at 50% 45%, #000 20%, transparent 72%);
  -webkit-mask-image: radial-gradient(circle at 50% 45%, #000 20%, transparent 72%);
}
.pv-agent { background: linear-gradient(135deg, #1c1e53, #3d2bb8 60%, #5239fa); }
.pv-biz { background: linear-gradient(135deg, #2a3a8f, #4a63e7 60%, #7a8ffb); }
.pv-oa { background: linear-gradient(135deg, #143a6b, #2563b8 60%, #5a9be0); }
.pv-legal { background: linear-gradient(135deg, #3d1d5e, #6d31a8 60%, #a05fd6); }
.pv-proc { background: linear-gradient(135deg, #0f4c45, #158a76 60%, #3fbfa3); }
.pv-media { background: linear-gradient(135deg, #7a1f3d, #c23a63 60%, #ef6f93); }
.pv-sale { background: linear-gradient(135deg, #8a4a12, #d97b26 60%, #f5a54a); }
.prod-body { padding: 26px 26px 30px; display: flex; flex-direction: column; flex: 1; }
.prod-cate { font-size: 12px; font-weight: 700; letter-spacing: 0.14em; color: var(--violet); text-transform: uppercase; }
.prod-body h3 { margin-top: 10px; font-size: 21px; font-weight: 700; display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.prod-body h3 .sub { font-size: 13px; color: var(--muted-2); font-weight: 500; }
.prod-body > p { margin-top: 10px; color: var(--muted); font-size: 14.5px; flex: 1; }
.prod-metrics { display: flex; flex-wrap: wrap; gap: 8px; margin: 18px 0 20px; }
.prod-metrics .tag { font-size: 11.5px; }
.prod-card .link-arrow { margin-top: auto; }

/* ==========================================================================
   数字墙 / 客户 logo 墙
   ========================================================================== */
.marquee { overflow: hidden; position: relative; }
.marquee-track { display: flex; gap: 64px; width: max-content; animation: marquee 30s linear infinite; }
.marquee:hover .marquee-track { animation-play-state: paused; }
@keyframes marquee { to { transform: translateX(-50%); } }
.marquee-item { display: flex; align-items: center; gap: 12px; font-weight: 700; font-size: 17px; color: rgba(255, 255, 255, 0.5); white-space: nowrap; }
.marquee-item .dot-m { width: 9px; height: 9px; border-radius: 3px; background: var(--yellow); opacity: 0.7; }

/* ==========================================================================
   交错图文行（Features 页风格）
   ========================================================================== */
.split-row { display: grid; grid-template-columns: 1fr 1fr; gap: 72px; align-items: center; }
.split-row + .split-row { margin-top: 96px; }
.split-row .sr-media { border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-md); position: relative; }
.split-row .sr-media img { width: 100%; }
.split-row h3 { font-size: clamp(22px, 2.4vw, 30px); font-weight: 700; }
.split-row .kicker { margin-bottom: 14px; }
.split-row p { margin-top: 16px; color: var(--muted); }
.split-row ul.checklist { margin-top: 22px; }

.checklist li { display: flex; gap: 12px; padding: 9px 0; font-size: 15px; color: var(--gray); align-items: flex-start; }
.checklist li svg { flex: none; width: 19px; height: 19px; margin-top: 3px; color: var(--violet); }
.checklist li strong { color: var(--dark); }
.checklist.on-dark li { color: rgba(255, 255, 255, 0.78); }
.checklist.on-dark li strong { color: var(--white); }

/* ==========================================================================
   截图浏览器框
   ========================================================================== */
.browser {
  border-radius: 12px;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--line-soft);
  background: var(--white);
  transition: transform 0.35s var(--ease), box-shadow 0.35s var(--ease);
}
.browser:hover { transform: translateY(-6px) scale(1.008); box-shadow: 0 30px 70px rgba(28, 30, 83, 0.22); }
.browser-bar { display: flex; align-items: center; gap: 7px; padding: 11px 15px; background: #eceefb; border-bottom: 1px solid var(--line-soft); }
.browser-bar .bl { width: 10px; height: 10px; border-radius: 50%; }
.bl.r { background: #ff8f8f; } .bl.y { background: #ffd479; } .bl.g { background: #8fe3b0; }
.browser-bar .url { flex: 1; margin-left: 10px; background: var(--white); border-radius: 6px; font-size: 11px; color: var(--muted-2); padding: 4px 12px; letter-spacing: 0.03em; }
.browser img { width: 100%; }

/* ==========================================================================
   对比表
   ========================================================================== */
.table-wrap { overflow-x: auto; border-radius: var(--radius-lg); box-shadow: var(--shadow-sm); background: var(--white); border: 1px solid var(--line-soft); }
.cmp-table { width: 100%; border-collapse: collapse; min-width: 760px; font-size: 14.5px; }
.cmp-table th, .cmp-table td { padding: 17px 22px; text-align: left; vertical-align: top; border-bottom: 1px solid var(--line-soft); line-height: 1.6; }
.cmp-table thead th { background: var(--navy); color: var(--white); font-weight: 600; font-size: 14px; white-space: nowrap; }
.cmp-table thead th:first-child { border-top-left-radius: var(--radius-lg); }
.cmp-table thead th:last-child { border-top-right-radius: var(--radius-lg); }
.cmp-table thead th.hl-col { background: var(--violet); }
.cmp-table tbody th { font-weight: 600; color: var(--dark); white-space: nowrap; background: var(--off-white); }
.cmp-table td { color: var(--muted); }
.cmp-table td.hl-col { background: rgba(82, 57, 250, 0.045); color: var(--dark); font-weight: 500; }
.cmp-table tbody tr:last-child td, .cmp-table tbody tr:last-child th { border-bottom: 0; }
.cmp-table td .good { color: #17864e; font-weight: 600; }
.cmp-table td .bad { color: var(--red); }
.cmp-table td .mid { color: var(--amber); }

/* ==========================================================================
   FAQ 手风琴（模版编号样式）
   ========================================================================== */
.faq-grid { display: grid; grid-template-columns: 0.9fr 1.4fr; gap: 60px; align-items: start; }
.faq-grid h2 { font-size: clamp(26px, 3vw, 36px); font-weight: 700; }
.faq-grid .faq-lead { margin-top: 16px; }
.faq-item { border-bottom: 1px solid var(--line); }
.faq-q {
  width: 100%;
  display: flex; align-items: baseline; gap: 22px;
  padding: 24px 4px;
  text-align: left;
  font-size: 17px; font-weight: 600; color: var(--dark);
  transition: color 0.2s;
}
.faq-q:hover { color: var(--violet); }
.faq-q .faq-no { font-size: 15px; font-weight: 700; color: var(--violet); }
.faq-q .faq-x { margin-left: auto; position: relative; width: 16px; height: 16px; flex: none; align-self: center; }
.faq-q .faq-x::before, .faq-q .faq-x::after { content: ""; position: absolute; background: var(--dark); transition: transform 0.3s var(--ease); }
.faq-q .faq-x::before { left: 0; right: 0; top: 7px; height: 2px; }
.faq-q .faq-x::after { top: 0; bottom: 0; left: 7px; width: 2px; }
.faq-item.open .faq-x::after { transform: scaleY(0); }
.faq-a { max-height: 0; overflow: hidden; transition: max-height 0.42s var(--ease); }
.faq-a-inner { padding: 0 40px 24px 46px; color: var(--muted); font-size: 15px; }

/* ==========================================================================
   数据条（counters）
   ========================================================================== */
.stats-band { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-md); }
.stat-cell { background: var(--white); padding: 40px 34px; border-right: 1px solid var(--line-soft); }
.stat-cell:last-child { border-right: 0; }
.stat-cell .num { font-size: 42px; font-weight: 700; color: var(--navy); line-height: 1.05; }
.stat-cell .num small { font-size: 20px; font-weight: 700; }
.stat-cell .cap { margin-top: 10px; color: var(--muted); font-size: 14px; }
.stat-cell.dark { background: var(--navy); }
.stat-cell.dark .num { color: var(--yellow); }
.stat-cell.dark .cap { color: rgba(255, 255, 255, 0.7); }

/* ==========================================================================
   架构图
   ========================================================================== */
.arch { display: flex; flex-direction: column; gap: 0; align-items: stretch; }
.arch-layer {
  position: relative;
  border-radius: var(--radius);
  padding: 22px 26px;
  border: 1.5px solid rgba(255, 255, 255, 0.16);
  background: rgba(255, 255, 255, 0.05);
}
.arch-layer + .arch-link { align-self: center; }
.arch-title { font-size: 13px; font-weight: 700; letter-spacing: 0.12em; color: var(--yellow); margin-bottom: 12px; display: flex; align-items: center; gap: 10px; }
.arch-chips { display: flex; flex-wrap: wrap; gap: 8px; }
.arch-chip { font-size: 12.5px; padding: 6px 14px; border-radius: 999px; background: rgba(255, 255, 255, 0.08); border: 1px solid rgba(255, 255, 255, 0.14); color: rgba(255, 255, 255, 0.85); }
.arch-chip.hl { background: rgba(252, 217, 128, 0.14); border-color: rgba(252, 217, 128, 0.4); color: var(--yellow); }
.arch-core { background: linear-gradient(135deg, rgba(82, 57, 250, 0.28), rgba(36, 5, 242, 0.18)); border-color: rgba(130, 110, 255, 0.5); box-shadow: 0 0 44px rgba(82, 57, 250, 0.28); }
.arch-link { color: rgba(255, 255, 255, 0.45); padding: 8px 0; display: grid; place-items: center; }
.arch-link svg { width: 18px; height: 18px; animation: bobY 1.8s ease-in-out infinite; }
@keyframes bobY { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(5px); } }
.arch-db { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.arch-db .arch-layer { text-align: center; }

/* ==========================================================================
   时间线（关于我们）
   ========================================================================== */
.process-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 34px; }
.process-step { position: relative; padding-top: 26px; }
.process-step::before {
  content: "";
  position: absolute; top: 5px; left: 30px; right: -34px; height: 0;
  border-top: 2px dashed rgba(82, 57, 250, 0.4);
}
.process-step:last-child::before { display: none; }
.process-step .p-dot { position: relative; width: 14px; height: 14px; border-radius: 50%; background: var(--violet); margin-bottom: 18px; }
.process-step h4 { font-size: 17px; font-weight: 700; }
.process-step p { margin-top: 8px; color: var(--muted); font-size: 14px; }

/* ==========================================================================
   团队
   ========================================================================== */
.team-card { padding: 36px 30px; text-align: center; }
.team-card .avatar { width: 148px; height: 148px; border-radius: 50%; object-fit: cover; margin: 0 auto; box-shadow: 0 0 0 5px var(--white), 0 0 0 7px rgba(82, 57, 250, 0.35), 0 18px 40px rgba(28, 30, 83, 0.18); transition: transform 0.35s var(--ease); }
.team-card:hover .avatar { transform: scale(1.05) rotate(1.5deg); }
.team-card h3 { margin-top: 24px; font-size: 20px; font-weight: 700; }
.team-card .role { margin-top: 5px; color: var(--violet); font-weight: 600; font-size: 13.5px; }
.team-card .bio { margin-top: 14px; color: var(--muted); font-size: 13.8px; text-align: left; }
.team-tags { display: flex; flex-wrap: wrap; justify-content: center; gap: 8px; margin-top: 18px; }

/* ==========================================================================
   CTA band（Send inquiry 风格）
   ========================================================================== */
.cta-band {
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: grid;
  grid-template-columns: 1fr 1fr;
  background: var(--navy);
  color: var(--white);
  box-shadow: var(--shadow-lg);
}
.cta-band .cta-left { padding: 58px 54px; position: relative; overflow: hidden; }
.cta-band .cta-left::before {
  content: ""; position: absolute; inset: 0;
  background:
    radial-gradient(circle at 20% 20%, rgba(82, 57, 250, 0.35), transparent 55%),
    radial-gradient(circle at 85% 80%, rgba(252, 217, 128, 0.14), transparent 50%);
}
.cta-band .cta-left > * { position: relative; }
.cta-band h2 { font-size: clamp(26px, 3vw, 38px); font-weight: 700; color: var(--white); }
.cta-band p { margin-top: 16px; color: rgba(255, 255, 255, 0.75); }
.cta-band .cta-right { padding: 54px 54px; display: flex; flex-direction: column; justify-content: center; gap: 16px; background: rgba(255, 255, 255, 0.03); border-left: 1px solid rgba(255, 255, 255, 0.1); }
.cta-actions { display: flex; flex-wrap: wrap; gap: 16px; }

/* 表单 */
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.field { display: flex; flex-direction: column; gap: 9px; }
.field.full { grid-column: 1 / -1; }
.field label { font-size: 13.5px; font-weight: 600; }
.field input, .field select, .field textarea {
  font-family: inherit;
  font-size: 14.5px;
  padding: 13px 16px;
  border-radius: 8px;
  border: 1.5px solid var(--line);
  background: var(--white);
  color: var(--dark);
  transition: border-color 0.2s, box-shadow 0.2s;
  width: 100%;
}
.field textarea { min-height: 130px; resize: vertical; }
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none;
  border-color: var(--violet);
  box-shadow: 0 0 0 4px rgba(82, 57, 250, 0.12);
}
.field input::placeholder, .field textarea::placeholder { color: var(--muted-2); }
.form-card { background: var(--light); border-radius: var(--radius-lg); padding: 48px; }
.form-note { font-size: 12.5px; color: var(--muted-2); }
.form-success { display: none; align-items: center; gap: 12px; background: rgba(127, 224, 171, 0.16); border: 1px solid rgba(60, 180, 120, 0.4); color: #17864e; padding: 14px 18px; border-radius: 10px; font-size: 14px; font-weight: 600; }
.form-success.show { display: flex; }

/* ==========================================================================
   页脚（模版样式）
   ========================================================================== */
.footer { background: var(--navy); color: var(--white); }
.footer-main { display: grid; grid-template-columns: 1.05fr 1fr; gap: 60px; padding: 84px 0 64px; }
.footer-desc { margin-top: 22px; color: rgba(255, 255, 255, 0.66); font-size: 14.5px; max-width: 26em; }
.footer-talk h3 { font-size: clamp(26px, 3vw, 36px); font-weight: 700; color: var(--white); }
.footer-talk p { margin-top: 14px; color: rgba(255, 255, 255, 0.66); font-size: 14.5px; max-width: 30em; }
.footer-card {
  margin-top: 34px;
  background: var(--yellow);
  color: var(--dark);
  border-radius: 12px;
  padding: 24px 28px;
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 20px;
}
.footer-card h5 { font-size: 14.5px; font-weight: 700; }
.footer-card p, .footer-card a { margin-top: 5px; font-size: 13px; color: rgba(40, 41, 56, 0.75); display: block; }
.footer-card a:hover { color: var(--navy); }
.footer-qr { display: flex; gap: 14px; align-items: center; }
.footer-qr img { width: 74px; height: 74px; border-radius: 8px; background: #fff; padding: 4px; }
.footer-bottom { border-top: 1px solid rgba(255, 255, 255, 0.1); }
.footer-bottom-inner { display: flex; align-items: center; justify-content: space-between; gap: 18px; padding: 24px 0; flex-wrap: wrap; }
.footer-bottom-inner .copy { font-size: 13.5px; color: rgba(255, 255, 255, 0.55); }
.footer-bottom-inner .copy .beian { color: rgba(255, 255, 255, 0.55); transition: color 0.2s; }
.footer-bottom-inner .copy .beian:hover { color: var(--yellow); }
.footer-nav { display: flex; flex-wrap: wrap; gap: 26px; }
.footer-nav a { font-size: 14px; color: rgba(255, 255, 255, 0.75); transition: color 0.2s; }
.footer-nav a:hover { color: var(--yellow); }

/* 返回顶部 */
.to-top {
  position: fixed; right: 28px; bottom: 28px; z-index: 150;
  width: 48px; height: 48px; border-radius: 50%;
  background: var(--violet); color: var(--white);
  display: grid; place-items: center;
  box-shadow: 0 12px 30px rgba(82, 57, 250, 0.4);
  opacity: 0; visibility: hidden; transform: translateY(14px);
  transition: all 0.3s var(--ease);
}
.to-top.show { opacity: 1; visibility: visible; transform: translateY(0); }
.to-top:hover { background: var(--blue); }
.to-top svg { width: 20px; height: 20px; }

/* ==========================================================================
   产品详情页
   ========================================================================== */
.page-hero {
  position: relative;
  background: var(--navy);
  color: var(--white);
  padding: 158px 0 96px;
  overflow: hidden;
}
.page-hero .hero-bg { opacity: 0.9; }
.page-hero .crumbs { display: inline-flex; align-items: center; gap: 10px; font-size: 13px; color: rgba(255, 255, 255, 0.55); margin-bottom: 24px; }
.page-hero .crumbs a { color: rgba(255, 255, 255, 0.75); }
.page-hero .crumbs a:hover { color: var(--yellow); }
.page-hero .crumbs .sep { opacity: 0.4; }
.ph-chips { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 22px; }
.ph-chip {
  padding: 6px 15px; border-radius: 999px;
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid rgba(255, 255, 255, 0.16);
  color: rgba(255, 255, 255, 0.88); font-size: 13px; font-weight: 500;
}
.page-hero h1 { font-size: clamp(34px, 4.2vw, 52px); font-weight: 700; }
.page-hero h1 .grad-text { font-size: clamp(20px, 2.7vw, 38px); line-height: 1.3; white-space: nowrap; }
.page-hero .ph-sub { margin-top: 18px; font-size: 17px; color: rgba(255, 255, 255, 0.8); max-width: 40em; }
.page-hero .hero-actions { margin-top: 36px; }
.ph-grid { position: relative; z-index: 2; display: grid; grid-template-columns: 1.05fr 0.95fr; gap: 60px; align-items: center; }

.ph-stats { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 44px; }
.ph-stat {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.14);
  padding: 14px 22px;
  border-radius: 12px;
  font-size: 13px; color: rgba(255, 255, 255, 0.7);
}
.ph-stat strong { display: block; font-size: 24px; color: var(--yellow); font-weight: 700; line-height: 1.15; }

/* 产品页截图面板 */
.ph-shot { position: relative; }
.ph-shot .browser { animation: floatY 7s ease-in-out infinite; }
.ph-shot .float-chip { font-size: 12px; }

/* 功能分栏 tabs */
.tabs { display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; margin-bottom: 46px; }
.tab-btn {
  padding: 11px 24px; border-radius: 999px;
  font-size: 14px; font-weight: 600;
  color: var(--gray); background: var(--white);
  border: 1.5px solid var(--line);
  transition: all 0.25s var(--ease);
}
.tab-btn:hover { border-color: var(--violet); color: var(--violet); }
.tab-btn.active { background: var(--navy); border-color: var(--navy); color: var(--white); }
.tab-pane { display: none; animation: fadeUp 0.5s var(--ease); }
.tab-pane.active { display: block; }
@keyframes fadeUp { from { opacity: 0; transform: translateY(18px); } to { opacity: 1; transform: translateY(0); } }

/* 功能列表卡（横向编号） */
.flist { display: grid; gap: 20px; }
.flist-item {
  display: grid; grid-template-columns: 64px 1fr; gap: 24px;
  background: var(--white);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  padding: 30px 32px;
  border: 1px solid transparent;
  transition: transform 0.3s var(--ease), box-shadow 0.3s var(--ease), border-color 0.3s;
}
.flist-item:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: rgba(82, 57, 250, 0.15); }
.flist-item .sq-icon { width: 56px; height: 56px; }
.flist-item h3 { font-size: 18.5px; font-weight: 700; display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.flist-item p { margin-top: 10px; color: var(--muted); font-size: 14.5px; }
.flist-item .mini-list { margin-top: 12px; display: grid; gap: 7px; }
.flist-item .mini-list li { display: flex; gap: 9px; font-size: 14px; color: var(--gray); }
.flist-item .mini-list li::before { content: "▸"; color: var(--violet); font-weight: 700; }

/* 痛点→解法卡 */
.pain-label {
  display: inline-block; padding: 4px 14px; border-radius: 999px;
  background: rgba(229, 72, 77, 0.08); border: 1px solid rgba(229, 72, 77, 0.35);
  color: var(--red); font-size: 12px; font-weight: 700; letter-spacing: 0.06em;
}
.page-hero .ph-stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(130px, 1fr)); gap: 10px; margin-top: 44px; }
.pain-fix {
  margin-top: 16px; padding: 11px 14px; border-radius: 8px;
  background: rgba(82, 57, 250, 0.05); border: 1px dashed rgba(82, 57, 250, 0.4);
  display: flex; gap: 9px; align-items: flex-start;
  font-size: 13.5px; font-weight: 600; color: var(--violet); line-height: 1.55;
}
.pain-fix svg { flex: none; width: 17px; height: 17px; margin-top: 2px; }
.pain-fix span b { color: var(--navy); }

/* 声明条 */
.statement-strip {
  margin-top: 32px; background: var(--navy); color: rgba(255, 255, 255, 0.9);
  border-radius: 12px; padding: 20px 30px; text-align: center;
  font-size: 16px; line-height: 1.7; box-shadow: var(--shadow-md);
}
.statement-strip b { color: var(--yellow); }

/* 引用/亮点条 */
.quote-band {
  border-radius: var(--radius-lg);
  background: linear-gradient(120deg, var(--navy) 0%, #2c1e86 55%, var(--violet) 120%);
  color: var(--white);
  padding: 44px 50px;
  position: relative;
  overflow: hidden;
}
.quote-band::after {
  content: "\201C";
  position: absolute; right: 34px; top: -30px;
  font-size: 170px; font-weight: 700;
  color: rgba(255, 255, 255, 0.07);
  font-family: Georgia, serif;
}
.quote-band p { font-size: 17.5px; line-height: 1.75; position: relative; color: var(--white); }
.quote-band .qb-src { margin-top: 16px; font-size: 13px; color: rgba(255, 255, 255, 0.6); }

/* ==========================================================================
   Mock UI（CSS 绘制的产品界面示意）
   ========================================================================== */
.mock {
  border-radius: 14px;
  overflow: hidden;
  background: #f7f8ff;
  border: 1px solid var(--line-soft);
  box-shadow: var(--shadow-lg);
  display: grid;
  grid-template-columns: minmax(140px, 190px) 1fr;
  font-size: 11px;
  color: var(--gray);
  text-align: left;
}
.mock .m-side { background: var(--navy); color: rgba(255, 255, 255, 0.85); padding: 16px 14px; display: flex; flex-direction: column; gap: 9px; }
.mock .m-side .m-logo { display: flex; align-items: center; gap: 8px; font-weight: 700; font-size: 12px; color: #fff; margin-bottom: 8px; }
.mock .m-side .m-logo i { width: 22px; height: 22px; border-radius: 6px; background: linear-gradient(135deg, var(--violet), var(--blue)); display: grid; place-items: center; font-style: normal; font-size: 10px; }
.mock .m-side .m-group { font-size: 9px; letter-spacing: 0.14em; opacity: 0.5; margin-top: 6px; }
.mock .m-side .m-item { padding: 6px 9px; border-radius: 7px; font-size: 10.5px; }
.mock .m-side .m-item.on { background: var(--violet); color: #fff; }
.mock .m-main { padding: 16px; display: flex; flex-direction: column; gap: 12px; min-width: 0; }
.mock .m-topbar { display: flex; align-items: center; justify-content: space-between; gap: 10px; }
.mock .m-topbar .m-title { font-size: 13px; font-weight: 700; color: var(--dark); }
.mock .m-statrow { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; }
.mock .m-stat { background: #fff; border-radius: 8px; padding: 9px 10px; border: 1px solid var(--line-soft); }
.mock .m-stat b { display: block; font-size: 15px; color: var(--navy); }
.mock .m-stat span { font-size: 9px; color: var(--muted-2); }
.mock .m-panel { background: #fff; border: 1px solid var(--line-soft); border-radius: 9px; padding: 11px 12px; }
.mock .m-panel .m-ph { font-size: 10.5px; font-weight: 700; color: var(--dark); margin-bottom: 8px; display: flex; justify-content: space-between; align-items: center; }
.mock .m-row { display: flex; justify-content: space-between; gap: 8px; padding: 6px 0; border-bottom: 1px dashed var(--line-soft); font-size: 10px; }
.mock .m-row:last-child { border-bottom: 0; }
.mock .m-pill { padding: 2px 8px; border-radius: 999px; font-size: 9px; font-weight: 600; }
.m-pill.red { background: rgba(229, 72, 77, 0.1); color: var(--red); }
.m-pill.amber { background: rgba(245, 165, 36, 0.14); color: #b47207; }
.m-pill.green { background: rgba(60, 180, 120, 0.12); color: #17864e; }
.m-pill.blue { background: rgba(82, 57, 250, 0.1); color: var(--violet); }
.m-pill.gray { background: rgba(40, 41, 56, 0.06); color: var(--muted); }
.m-btn { display: inline-block; background: var(--violet); color: #fff; font-size: 9.5px; font-weight: 600; padding: 4px 10px; border-radius: 6px; }
.m-btn.gold { background: var(--yellow); color: var(--dark); }
.mock-bubble { max-width: 82%; padding: 8px 11px; border-radius: 10px; font-size: 10px; line-height: 1.6; }
.mock-bubble.user { align-self: flex-end; background: var(--violet); color: #fff; border-bottom-right-radius: 3px; }
.mock-bubble.ai { align-self: flex-start; background: #eef0fc; border-bottom-left-radius: 3px; }
.m-cite { display: inline-block; margin: 0 1px; padding: 0 5px; border-radius: 4px; background: rgba(252, 217, 128, 0.4); color: #6b5410; font-size: 8.5px; font-weight: 700; }

/* ==========================================================================
   落地案例面板
   ========================================================================== */
.case-panel {
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.16);
  box-shadow: 0 40px 90px rgba(8, 9, 34, 0.5);
  background: var(--white);
  animation: floatY 7s ease-in-out infinite;
}
.case-head {
  position: relative;
  padding: 24px 30px 22px;
  background: linear-gradient(135deg, #1c1e53 0%, #3d2bb8 65%, var(--violet) 130%);
  color: var(--white);
  overflow: hidden;
}
.case-head::after {
  content: "";
  position: absolute; right: -46px; top: -46px;
  width: 150px; height: 150px; border-radius: 50%;
  background: radial-gradient(circle, rgba(252, 217, 128, 0.22), transparent 68%);
}
.case-flag {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 6px 15px; border-radius: 999px;
  background: rgba(127, 224, 171, 0.14);
  border: 1px solid rgba(127, 224, 171, 0.55);
  color: var(--mint);
  font-size: 12.5px; font-weight: 700; letter-spacing: 0.04em;
}
.case-head h3 { margin-top: 15px; font-size: 22px; font-weight: 700; color: var(--white); position: relative; }
.case-head p { margin-top: 6px; font-size: 13px; color: rgba(255, 255, 255, 0.72); position: relative; }
.case-body { padding: 22px 30px 8px; }
.case-feats { display: grid; grid-template-columns: 1fr 1fr; gap: 11px 18px; }
.case-feat { display: flex; gap: 9px; font-size: 13px; color: var(--gray); align-items: flex-start; line-height: 1.55; }
.case-feat svg { flex: none; width: 16px; height: 16px; color: var(--violet); margin-top: 3px; }
.case-feat strong { color: var(--dark); }
.case-foot { display: flex; flex-wrap: wrap; gap: 8px; padding: 16px 30px 22px; }
@media (max-width: 1080px) {
  .sp-duo { grid-template-columns: 1fr; }
  .sp-duo .sp-item:last-child { margin-left: 0; transform: rotate(0deg) translateY(0); margin-top: 26px; }
  .pack-cols { grid-template-columns: 1fr; }
  .pack-col + .pack-col { border-left: 0; border-top: 1px solid rgba(255, 255, 255, 0.14); }
  .ph-stats.compact { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 760px) {
  .case-feats { grid-template-columns: 1fr; }
  .case-head, .case-body, .case-foot { padding-left: 20px; padding-right: 20px; }
}

/* ==========================================================================
   POC 场景网格（一平台 N 场景）
   ========================================================================== */
.poc-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 14px; }
.poc-item {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 10px;
  padding: 16px 15px 13px;
  transition: transform 0.3s var(--ease), border-color 0.3s, background 0.3s;
}
.poc-item:hover { transform: translateY(-4px); border-color: rgba(252, 217, 128, 0.45); background: rgba(255, 255, 255, 0.08); }
.poc-item .poc-no { font-size: 11px; font-weight: 700; letter-spacing: 0.1em; color: var(--yellow); }
.poc-item h4 { margin-top: 5px; font-size: 14px; font-weight: 600; color: var(--white); line-height: 1.45; }
.poc-item p { margin-top: 4px; font-size: 11.5px; color: rgba(255, 255, 255, 0.55); line-height: 1.55; }
.honor-badge {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 10px 22px; border-radius: 999px;
  background: rgba(252, 217, 128, 0.12);
  border: 1px solid rgba(252, 217, 128, 0.45);
  color: var(--yellow);
  font-size: 14px; font-weight: 600;
}
.honor-badge.on-light { background: rgba(252, 217, 128, 0.22); border-color: rgba(214, 170, 40, 0.5); color: #7a5d0d; }

/* ==========================================================================
   滚动渐入动画
   ========================================================================== */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity 0.7s var(--ease), transform 0.7s var(--ease); }
.reveal.in { opacity: 1; transform: translateY(0); }
.reveal[data-delay="1"] { transition-delay: 0.1s; }
.reveal[data-delay="2"] { transition-delay: 0.2s; }
.reveal[data-delay="3"] { transition-delay: 0.3s; }
.reveal[data-delay="4"] { transition-delay: 0.4s; }
.reveal[data-delay="5"] { transition-delay: 0.5s; }
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; }
  .reveal { opacity: 1; transform: none; }
  html { scroll-behavior: auto; }
}

/* ==========================================================================
   响应式
   ========================================================================== */
@media (max-width: 1080px) {
  .hero-inner, .ph-grid { grid-template-columns: 1fr; gap: 48px; }
  .hero { padding-top: 150px; }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .proof-grid { grid-template-columns: 1fr; }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .stats-band { grid-template-columns: repeat(2, 1fr); }
  .stat-cell:nth-child(2) { border-right: 0; }
  .stat-cell:nth-child(-n+2) { border-bottom: 1px solid var(--line-soft); }
  .split-row { grid-template-columns: 1fr; gap: 36px; }
  .split-row.rev .sr-media { order: -1; }
  .faq-grid { grid-template-columns: 1fr; gap: 30px; }
  .process-row { grid-template-columns: repeat(2, 1fr); gap: 44px 30px; }
  .process-step:nth-child(2)::before { display: none; }
  .footer-main { grid-template-columns: 1fr; gap: 44px; }
  .cta-band { grid-template-columns: 1fr; }
  .cta-band .cta-right { border-left: 0; border-top: 1px solid rgba(255, 255, 255, 0.1); }
}

@media (max-width: 1080px) {
  .sp-duo { grid-template-columns: 1fr; }
  .sp-duo .sp-item:last-child { margin-left: 0; transform: rotate(0deg) translateY(0); margin-top: 26px; }
  .pack-cols { grid-template-columns: 1fr; }
  .pack-col + .pack-col { border-left: 0; border-top: 1px solid rgba(255, 255, 255, 0.14); }
  .ph-stats.compact { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 760px) {
  .container { padding: 0 20px; }
  .section { padding: 76px 0; }
  .menu, .nav-cta { display: none; }
  .hamburger { display: block; }
  .hero { padding: 130px 0 84px; }
  .hero h1 { font-size: clamp(22px, 8vw, 34px); }
  .hero-values { grid-template-columns: 1fr; max-width: none; }
  .proof-grid { grid-template-columns: 1fr; }
  .hstat strong { font-size: 46px; }
  .hstat b { font-size: 14.5px; }
  .hero-stats { grid-template-columns: repeat(2, 1fr); gap: 12px; margin-top: 54px; }
  .grid-3, .grid-2, .grid-4 { grid-template-columns: 1fr; }
  .stats-band { grid-template-columns: 1fr; }
  .stat-cell { border-right: 0; border-bottom: 1px solid var(--line-soft); }
  .stat-cell:last-child { border-bottom: 0; }
  .form-grid { grid-template-columns: 1fr; }
  .form-card { padding: 30px 22px; }
  .footer-card { grid-template-columns: 1fr; }
  .footer-bottom-inner { justify-content: center; text-align: center; }
  .process-row { grid-template-columns: 1fr; }
  .process-step::before { display: none; }
  .flist-item { grid-template-columns: 1fr; gap: 14px; }
  .dropdown { width: min(92vw, 430px); }
  .float-chip { display: none; }
  .faq-a-inner { padding: 0 8px 22px 44px; }
  .quote-band { padding: 34px 26px; }
  .cta-band .cta-left, .cta-band .cta-right { padding: 40px 26px; }
}