/* ==========================================================================
   智曜 AI 官网 · 全站样式
   视觉方向：浅色未来感（白 / 灰 / 藏青主色，中国红点缀）
   语言：羽化渐变 · 柔光玻璃 · 时光流线
   ========================================================================== */

:root {
  /* 底色：白 → 浅灰 → 灰蓝，三档拉开层次 */
  --bg: #ffffff;
  --bg-2: #f6f8fb;
  --bg-3: #edf1f7;

  /* 藏青 */
  --ink: #08182f;
  --navy: #10294f;
  --navy-2: #17396a;
  --navy-3: #2c4f80;

  /* 文字 */
  --text: #1b2a44;
  --text-2: #566682;
  --text-3: #8a96a9;

  /* 描边 */
  --line: rgba(16, 41, 79, 0.10);
  --line-2: rgba(16, 41, 79, 0.17);
  --line-3: rgba(16, 41, 79, 0.28);

  /* 中国红 */
  --accent: #c8102e;
  --accent-2: #e23a4e;
  --accent-deep: #a00c24;
  --accent-soft: rgba(200, 16, 46, 0.07);

  /* 辅助冷色（只用于柔光与流线，不做主色） */
  --blue: #3d6fd6;
  --sky: #7ea6e8;
  --cyan: #56c8e0;

  /* 面板与阴影 */
  --panel: #ffffff;
  --panel-soft: rgba(255, 255, 255, 0.72);
  --panel-flat: #ffffff;
  --panel-hi: #ffffff;
  --shadow-sm: 0 1px 2px rgba(16, 41, 79, 0.04), 0 10px 24px -14px rgba(16, 41, 79, 0.18);
  --shadow: 0 2px 6px rgba(16, 41, 79, 0.04), 0 26px 54px -26px rgba(16, 41, 79, 0.24);
  --shadow-lg: 0 4px 10px rgba(16, 41, 79, 0.05), 0 40px 80px -32px rgba(16, 41, 79, 0.30);

  --radius: 16px;
  --radius-lg: 22px;
  --wrap: 1200px;
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
  --mono: Inter, "SF Pro Display", -apple-system, "Segoe UI", Arial, sans-serif;
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  background: var(--bg);
}

body {
  margin: 0;
  font-family: "PingFang SC", "HarmonyOS Sans SC", "Source Han Sans SC", "Noto Sans SC", "Microsoft YaHei", sans-serif;
  font-size: 16px;
  line-height: 1.72;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; }
h1, h2, h3, h4 {
  margin: 0;
  font-weight: 700;
  line-height: 1.24;
  color: var(--ink);
  letter-spacing: -0.01em;
}
ul, ol { margin: 0; padding: 0; list-style: none; }
p { margin: 0; }
svg { display: block; }
::selection { background: rgba(200, 16, 46, 0.14); color: var(--ink); }

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

.wrap {
  width: 100%;
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 28px;
}

.skip {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 999;
  padding: 10px 18px;
  background: var(--navy);
  color: #fff;
  border-radius: 0 0 10px 0;
}
.skip:focus { left: 0; }

/* ---------- 按钮 ---------- */
.btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 26px;
  border-radius: 12px;
  border: 1px solid transparent;
  font-size: 15px;
  font-weight: 600;
  line-height: 1;
  white-space: nowrap;
  transition: transform 0.24s var(--ease), box-shadow 0.3s var(--ease),
              background 0.3s var(--ease), color 0.3s var(--ease), border-color 0.3s var(--ease);
}
.btn svg { flex: none; }

.btn-accent {
  background: linear-gradient(135deg, #d81b38, var(--accent) 52%, var(--accent-deep));
  color: #fff;
  box-shadow: 0 10px 26px -10px rgba(200, 16, 46, 0.55), inset 0 1px 0 rgba(255, 255, 255, 0.22);
}
.btn-accent:hover {
  transform: translateY(-2px);
  box-shadow: 0 18px 38px -12px rgba(200, 16, 46, 0.62), inset 0 1px 0 rgba(255, 255, 255, 0.28);
}

.btn-ghost {
  border-color: var(--line-2);
  color: var(--navy);
  background: rgba(255, 255, 255, 0.72);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}
.btn-ghost:hover {
  border-color: var(--line-3);
  background: #fff;
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}

.btn-outline {
  border-color: var(--line-2);
  color: var(--navy);
  background: transparent;
}
.btn-outline:hover { border-color: var(--accent); color: var(--accent); }

/* ---------- 顶部导航 ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.72);
  backdrop-filter: saturate(160%) blur(18px);
  -webkit-backdrop-filter: saturate(160%) blur(18px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s var(--ease), background 0.3s var(--ease), box-shadow 0.3s var(--ease);
}
.site-header.is-scrolled {
  background: rgba(255, 255, 255, 0.9);
  border-bottom-color: var(--line);
  box-shadow: 0 1px 0 rgba(16, 41, 79, 0.04), 0 12px 30px -24px rgba(16, 41, 79, 0.4);
}
.header-inner {
  display: flex;
  align-items: center;
  gap: 32px;
  height: 74px;
}

.brand { display: flex; align-items: center; gap: 10px; flex: none; }
.brand-mark { height: 34px; width: auto; }
.brand-text { display: flex; flex-direction: column; line-height: 1.12; }
.brand-text b {
  font-size: 18px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--ink);
}
.brand-text i {
  font-style: normal;
  font-size: 9px;
  letter-spacing: 0.24em;
  color: var(--text-3);
  font-family: var(--mono);
}

.nav {
  display: flex;
  align-items: center;
  gap: 28px;
  margin-left: auto;
  font-size: 15px;
}
.nav a {
  position: relative;
  padding: 6px 0;
  color: var(--text-2);
  transition: color 0.2s var(--ease);
}
.nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 100%;
  height: 2px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--accent), rgba(200, 16, 46, 0));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s var(--ease);
}
.nav a:hover, .nav a.is-active { color: var(--ink); }
.nav a:hover::after, .nav a.is-active::after { transform: scaleX(1); }
.nav .btn { display: none; }

.header-cta { padding: 11px 22px; font-size: 14px; border-radius: 10px; }

.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  margin-left: auto;
  border: 1px solid var(--line-2);
  border-radius: 10px;
  background: #fff;
  padding: 0;
  align-items: center;
  justify-content: center;
}
.nav-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  background: var(--navy);
  position: relative;
}
.nav-toggle span::before,
.nav-toggle span::after {
  content: "";
  position: absolute;
  left: 0;
  width: 18px;
  height: 2px;
  background: var(--navy);
}
.nav-toggle span::before { top: -6px; }
.nav-toggle span::after { top: 6px; }

/* 顶部滚动进度线（由 JS 注入） */
.scroll-line {
  position: fixed;
  left: 0;
  top: 0;
  z-index: 200;
  height: 2px;
  width: 0;
  background: linear-gradient(90deg, var(--accent), #e2556a 60%, var(--sky));
  box-shadow: 0 0 12px rgba(200, 16, 46, 0.35);
  pointer-events: none;
}

/* ---------- 首屏 ---------- */
.hero {
  position: relative;
  overflow: hidden;
  padding: 84px 0 44px;
  background: var(--bg);
  isolation: isolate;
}
/* 柔光渐变：羽化边缘，避免出现硬边色块 */
.hero::before {
  content: "";
  position: absolute;
  inset: -10% -5% auto -5%;
  height: 130%;
  background:
    radial-gradient(760px 520px at 78% 4%, rgba(200, 16, 46, 0.055), transparent 62%),
    radial-gradient(820px 620px at 8% 26%, rgba(61, 111, 214, 0.10), transparent 66%),
    radial-gradient(680px 480px at 62% 92%, rgba(86, 200, 224, 0.09), transparent 68%),
    linear-gradient(180deg, #ffffff 0%, #f8fafd 58%, #ffffff 100%);
  filter: blur(2px);
  z-index: -2;
}
/* 极细网格 + 径向遮罩，制造纵深 */
.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(16, 41, 79, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(16, 41, 79, 0.045) 1px, transparent 1px);
  background-size: 72px 72px;
  -webkit-mask-image: radial-gradient(980px 620px at 62% 18%, #000 10%, transparent 72%);
  mask-image: radial-gradient(980px 620px at 62% 18%, #000 10%, transparent 72%);
  pointer-events: none;
  z-index: -1;
}
.hero .wrap { position: relative; z-index: 1; }

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.04fr) minmax(0, 0.96fr);
  gap: 56px;
  align-items: center;
  padding-bottom: 72px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 7px 15px 7px 12px;
  border: 1px solid var(--line-2);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  font-size: 12.5px;
  letter-spacing: 0.06em;
  color: var(--text-2);
  box-shadow: var(--shadow-sm);
}
.eyebrow::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 4px rgba(200, 16, 46, 0.12);
}

.hero h1 {
  margin-top: 26px;
  font-size: clamp(40px, 5.2vw, 64px);
  line-height: 1.06;
  letter-spacing: -0.04em;
  color: var(--ink);
}
.hero-copy > h1:first-child { margin-top: 0; }
.hero h1 em {
  position: relative;
  margin-left: 0.14em;
  font-style: normal;
  white-space: nowrap;
  color: var(--accent);
}
.hero h1 em::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0.06em;
  height: 0.34em;
  border-radius: 3px;
  background: linear-gradient(90deg, rgba(200, 16, 46, 0.16), rgba(200, 16, 46, 0.02));
  z-index: -1;
}
.hero-sub {
  margin-top: 22px;
  font-size: clamp(16px, 1.5vw, 18px);
  font-weight: 600;
  color: var(--navy);
  letter-spacing: 0.01em;
}
.hero-desc {
  margin-top: 14px;
  max-width: 530px;
  font-size: 15px;
  color: var(--text-2);
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 34px;
}

.hero-strip {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 11px 14px;
  margin-top: 34px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
  font-size: 12.5px;
  color: var(--text-3);
}
.hero-strip li { display: inline-flex; align-items: center; gap: 8px; }
.hero-strip li::before {
  content: "";
  width: 5px;
  height: 5px;
  border-radius: 1px;
  background: var(--accent);
  opacity: 0.85;
  transform: rotate(45deg);
}

/* ==========================================================================
   首屏主视觉：悬浮的站立吉祥物 + 全息投射环（纯 CSS 微动效）
   构图：玩偶悬空、脚下三重投射光环缓慢自转、体积光自下而上、光点上升
   ========================================================================== */
.hero-visual {
  position: relative;
  z-index: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  transform: translateY(6px);
}

.hero-stage {
  position: relative;
  z-index: 0;
  display: flex;
  justify-content: center;
  align-items: flex-end;
  width: 100%;
  max-width: 430px;
  padding-bottom: 64px;
}

/* 背景氛围光：藏青冷光 + 底部品牌红，极低透明度只做空气感 */
.stage-aura {
  position: absolute;
  left: 50%;
  top: 46%;
  width: 128%;
  height: 118%;
  transform: translate(-50%, -50%);
  background:
    radial-gradient(closest-side, rgba(200, 16, 46, 0.075), rgba(200, 16, 46, 0) 70%),
    radial-gradient(closest-side at 50% 78%, rgba(200, 16, 46, 0.10), rgba(200, 16, 46, 0) 74%);
  filter: blur(10px);
  animation: aura-breathe 7s ease-in-out infinite;
  pointer-events: none;
}

/* 身后全息门环：细窄彩色圆弧缓慢自转 */
.stage-portal {
  position: absolute;
  left: 50%;
  top: 42%;
  width: 88%;
  aspect-ratio: 1;
  transform: translate(-50%, -50%);
  border-radius: 50%;
  background: conic-gradient(from 0deg,
    rgba(226, 58, 78, 0) 0deg,
    rgba(226, 58, 78, 0.45) 48deg,
    rgba(226, 58, 78, 0.08) 118deg,
    rgba(226, 58, 78, 0) 176deg,
    rgba(61, 111, 214, 0) 214deg,
    rgba(61, 111, 214, 0.28) 286deg,
    rgba(61, 111, 214, 0) 344deg);
  -webkit-mask-image: radial-gradient(closest-side, transparent 93.5%, #000 94.5%, #000 99.4%, transparent 100%);
  mask-image: radial-gradient(closest-side, transparent 93.5%, #000 94.5%, #000 99.4%, transparent 100%);
  opacity: 0.75;
  animation: portal-spin 30s linear infinite;
  pointer-events: none;
}
@keyframes portal-spin {
  to { transform: translate(-50%, -50%) rotate(360deg); }
}

/* 全息投射光束：自脚下向上展开的体积光 */
.stage-beam {
  position: absolute;
  left: 50%;
  bottom: 52px;
  width: 78%;
  height: 78%;
  transform: translateX(-50%);
  background: linear-gradient(to top,
    rgba(200, 16, 46, 0.16) 0%,
    rgba(61, 111, 214, 0.10) 38%,
    rgba(61, 111, 214, 0.02) 70%,
    rgba(255, 255, 255, 0) 100%);
  clip-path: polygon(40% 100%, 60% 100%, 100% 0%, 0% 0%);
  filter: blur(12px);
  opacity: 0.9;
  animation: beam-pulse 7s ease-in-out infinite;
  pointer-events: none;
}

/* 脚下的全息地面网格（压缩成透视地面效果） */
.stage-grid {
  position: absolute;
  left: 50%;
  bottom: 34px;
  width: 80%;
  height: 86px;
  transform: translateX(-50%) scaleY(0.5);
  background-image:
    repeating-linear-gradient(90deg, rgba(16, 41, 79, 0.22) 0 1px, transparent 1px 24px),
    repeating-linear-gradient(0deg, rgba(16, 41, 79, 0.18) 0 1px, transparent 1px 24px);
  -webkit-mask-image: radial-gradient(closest-side, #000 26%, rgba(0, 0, 0, 0.35) 62%, transparent 92%);
  mask-image: radial-gradient(closest-side, #000 26%, rgba(0, 0, 0, 0.35) 62%, transparent 92%);
  z-index: 0;
  pointer-events: none;
}

/* 光环内的红色能量底盘 */
.stage-pad {
  position: absolute;
  left: 50%;
  bottom: 26px;
  width: 64%;
  height: 46px;
  transform: translateX(-50%);
  background: radial-gradient(closest-side,
    rgba(200, 16, 46, 0.22) 0%,
    rgba(200, 16, 46, 0.08) 52%,
    rgba(200, 16, 46, 0) 78%);
  filter: blur(6px);
  z-index: 0;
  animation: beam-pulse 7s ease-in-out infinite;
  pointer-events: none;
}

/* 脚下三重光环 */
.stage-rings {
  position: absolute;
  left: 50%;
  bottom: 0;
  width: 100%;
  max-width: 400px;
  transform: translateX(-50%);
  z-index: 1;
  overflow: visible;
  filter: drop-shadow(0 0 6px rgba(226, 58, 78, 0.22));
  pointer-events: none;
}
.ring {
  fill: none;
  stroke-linecap: round;
  transform-box: fill-box;
  transform-origin: center;
}
.ring-outer {
  stroke: rgba(226, 58, 78, 0.50);
  stroke-width: 1;
  stroke-dasharray: 6 14;
  animation: ring-flow 26s linear infinite;
}
.ring-inner {
  stroke: rgba(61, 111, 214, 0.30);
  stroke-width: 0.9;
}
.ring-dash {
  stroke: rgba(226, 58, 78, 0.78);
  stroke-width: 2.6;
  stroke-dasharray: 78 380;
  animation: ring-sweep 6.5s cubic-bezier(0.45, 0, 0.55, 1) infinite;
}

/* 悬浮玩偶本体 */
.stage-mascot {
  position: relative;
  z-index: 3;
  display: block;
  width: 78%;
  max-width: 330px;
  height: auto;
  animation: mascot-float 6s ease-in-out infinite;
  filter: drop-shadow(0 16px 20px rgba(16, 41, 79, 0.13));
}

/* 地面投影：随悬浮高度呼吸 */
.stage-shadow {
  position: absolute;
  left: 50%;
  bottom: 46px;
  width: 46%;
  height: 20px;
  transform: translateX(-50%);
  background: radial-gradient(closest-side, rgba(16, 41, 79, 0.30), rgba(16, 41, 79, 0) 100%);
  filter: blur(7px);
  z-index: 0;
  animation: shadow-breathe 6s ease-in-out infinite;
  pointer-events: none;
}

/* 上升光点 */
.stage-spark {
  position: absolute;
  bottom: 44px;
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: #fff;
  box-shadow: 0 0 6px rgba(226, 58, 78, 0.85), 0 0 12px rgba(200, 16, 46, 0.45);
  opacity: 0;
  z-index: 2;
  animation: spark-rise 5.4s ease-out infinite;
  pointer-events: none;
}
.spark-1 { left: 26%; animation-delay: 0s; }
.spark-2 { left: 68%; animation-delay: 0.9s; }
.spark-3 { left: 40%; animation-delay: 1.9s; }
.spark-4 { left: 58%; animation-delay: 2.9s; }
.spark-5 { left: 34%; animation-delay: 4.1s; }

@keyframes mascot-float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-9px); }
}
@keyframes shadow-breathe {
  0%, 100% { transform: translateX(-50%) scale(1); opacity: 0.85; }
  50% { transform: translateX(-50%) scale(0.86); opacity: 0.5; }
}
@keyframes aura-breathe {
  0%, 100% { opacity: 0.82; transform: translate(-50%, -50%) scale(1); }
  50% { opacity: 1; transform: translate(-50%, -50%) scale(1.05); }
}
@keyframes beam-pulse {
  0%, 100% { opacity: 0.7; }
  50% { opacity: 1; }
}
@keyframes ring-flow {
  to { stroke-dashoffset: -200; }
}
@keyframes ring-sweep {
  0% { stroke-dashoffset: 120; opacity: 0.12; }
  25% { opacity: 0.95; }
  75% { opacity: 0.95; }
  100% { stroke-dashoffset: -340; opacity: 0.12; }
}
@keyframes spark-rise {
  0% { opacity: 0; transform: translateY(0) scale(0.5); }
  18% { opacity: 0.95; }
  70% { opacity: 0.55; }
  100% { opacity: 0; transform: translateY(-150px) scale(1.05); }
}

.hero-status {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin: 0;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.09em;
  color: #5b6b83;
}
.hero-status-dot {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 3px rgba(200, 16, 46, 0.10);
}

@media (prefers-reduced-motion: reduce) {
  .stage-mascot,
  .stage-shadow,
  .stage-aura,
  .stage-beam,
  .ring,
  .stage-spark { animation: none; }
  .stage-portal { animation: none; }
  .stage-spark { display: none; }
}

/* 品牌徽章（CTA / 关于页使用） */
.emblem {
  position: relative;
  width: 100%;
  max-width: 360px;
  aspect-ratio: 1 / 1;
  display: grid;
  place-items: center;
}
.emblem::before {
  content: "";
  position: absolute;
  inset: 15%;
  border-radius: 50%;
  border: 1px solid rgba(16, 41, 79, 0.08);
  background: radial-gradient(circle at 50% 42%, #ffffff, rgba(255, 255, 255, 0.4) 62%, transparent 78%);
  box-shadow: 0 30px 70px -34px rgba(16, 41, 79, 0.4);
}
.emblem-glow {
  position: absolute;
  inset: 6%;
  border-radius: 50%;
  background:
    radial-gradient(circle at 42% 38%, rgba(200, 16, 46, 0.20), transparent 58%),
    radial-gradient(circle at 66% 70%, rgba(61, 111, 214, 0.22), transparent 62%);
  filter: blur(30px);
  pointer-events: none;
}
.emblem-ring {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  border: 1px solid rgba(16, 41, 79, 0.10);
}
.emblem-ring--2 {
  inset: 11%;
  border-style: dashed;
  border-color: rgba(16, 41, 79, 0.16);
  animation: emblem-spin 52s linear infinite;
}
.emblem-ring--3 {
  inset: 24%;
  border-color: rgba(200, 16, 46, 0.24);
  box-shadow: 0 0 34px rgba(200, 16, 46, 0.10) inset;
}
.emblem-cross {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  overflow: hidden;
  opacity: 0.35;
}
.emblem-cross::before,
.emblem-cross::after {
  content: "";
  position: absolute;
  background: linear-gradient(90deg, transparent, rgba(16, 41, 79, 0.16), transparent);
}
.emblem-cross::before { left: 0; right: 0; top: 50%; height: 1px; }
.emblem-cross::after {
  top: 0; bottom: 0; left: 50%; width: 1px;
  background: linear-gradient(180deg, transparent, rgba(16, 41, 79, 0.16), transparent);
}
.emblem-mark {
  position: relative;
  z-index: 2;
  width: 50%;
  height: auto;
  filter: drop-shadow(0 16px 34px rgba(16, 41, 79, 0.22));
  animation: emblem-float 9s ease-in-out infinite;
}

@keyframes emblem-spin { to { transform: rotate(360deg); } }
@keyframes emblem-float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-9px); }
}

/* ---------- 通用区块 ---------- */
.section { padding: 96px 0; position: relative; }
.section-head { max-width: 740px; margin-bottom: 52px; }
.kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 12.5px;
  font-weight: 600;
  letter-spacing: 0.16em;
  color: var(--accent);
  text-transform: uppercase;
}
.kicker::before {
  content: "";
  width: 22px;
  height: 2px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--accent), rgba(200, 16, 46, 0.18));
}
.section-head h2 {
  margin-top: 16px;
  font-size: clamp(27px, 3.3vw, 40px);
  letter-spacing: -0.035em;
}
.section-head p {
  margin-top: 16px;
  color: var(--text-2);
  font-size: 16px;
}
.section-head .head-note {
  margin-top: 10px;
  font-size: 14px;
  color: var(--text-3);
}

/* 卡片通用：柔光玻璃 */
.service-group,
.process-item,
.info-card,
.panel,
.cta-lite,
.why-item,
.method-step,
.pain-list li {
  position: relative;
}

/* ---------- 痛点 ---------- */
.pain { background: var(--bg-2); }
.pain-list {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}
.pain-list li {
  padding: 28px 24px 30px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  box-shadow: var(--shadow-sm);
  transition: transform 0.34s var(--ease), border-color 0.34s var(--ease), box-shadow 0.34s var(--ease);
}
.pain-list li::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 24px;
  right: 24px;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(200, 16, 46, 0.55), transparent);
  opacity: 0;
  transition: opacity 0.34s var(--ease);
}
.pain-list li:hover {
  transform: translateY(-5px);
  border-color: rgba(200, 16, 46, 0.24);
  box-shadow: var(--shadow);
}
.pain-list li:hover::before { opacity: 1; }
.pain-num {
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 0.14em;
}
.pain-list h3 { margin-top: 14px; font-size: 17px; line-height: 1.42; }
.pain-list p { margin-top: 10px; color: var(--text-2); font-size: 14px; }

/* ---------- 服务矩阵 ---------- */
.services { background: var(--bg); }
.service-groups {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}
.service-group {
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 26px 26px 22px;
  background: #fff;
  box-shadow: var(--shadow-sm);
  transition: border-color 0.34s var(--ease), transform 0.34s var(--ease), box-shadow 0.34s var(--ease);
}
.service-group:hover {
  border-color: rgba(16, 41, 79, 0.16);
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}
.group-label {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 16px;
  margin-bottom: 6px;
  border-bottom: 1px solid var(--line);
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--text-3);
}
.group-label b { color: var(--ink); font-size: 15px; letter-spacing: 0; }
.group-label em {
  font-style: normal;
  font-family: var(--mono);
  color: var(--accent);
  font-size: 12px;
  letter-spacing: 0.08em;
}
.service-item {
  display: block;
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
}
.service-item:last-child { border-bottom: 0; padding-bottom: 0; }
.service-item h3 {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 17px;
  transition: color 0.2s var(--ease);
}
.service-item h3 svg {
  opacity: 0;
  transform: translateX(-4px);
  transition: opacity 0.24s var(--ease), transform 0.24s var(--ease);
  color: var(--accent);
}
.service-item:hover h3 { color: var(--accent); }
.service-item:hover h3 svg { opacity: 1; transform: translateX(0); }
.service-item p {
  margin-top: 6px;
  font-size: 14px;
  color: var(--text-2);
  line-height: 1.65;
}
.service-tagline {
  margin-top: 34px;
  padding: 22px 26px;
  background: linear-gradient(90deg, rgba(200, 16, 46, 0.055), rgba(200, 16, 46, 0.01));
  border: 1px solid rgba(200, 16, 46, 0.16);
  border-left: 3px solid var(--accent);
  border-radius: 4px 14px 14px 4px;
  font-size: 15px;
  color: var(--text);
}

/* ---------- 为什么是智曜 ---------- */
.why {
  background: var(--bg-2);
  position: relative;
  overflow: hidden;
}
.why::after {
  content: "";
  position: absolute;
  right: -180px;
  top: -200px;
  width: 620px;
  height: 620px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(200, 16, 46, 0.06), transparent 70%);
  filter: blur(26px);
  pointer-events: none;
}
.why .wrap { position: relative; z-index: 1; }

/* 四步链：用流线把四段连起来 */
.chain {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-bottom: 48px;
}
.chain li {
  position: relative;
  padding: 24px 20px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: #fff;
  box-shadow: var(--shadow-sm);
  transition: transform 0.3s var(--ease), border-color 0.3s var(--ease);
}
.chain li:hover { transform: translateY(-4px); border-color: rgba(16, 41, 79, 0.18); }
.chain li::after {
  content: "";
  position: absolute;
  right: -16px;
  top: 50%;
  width: 16px;
  height: 1px;
  background: linear-gradient(90deg, rgba(200, 16, 46, 0.55), rgba(200, 16, 46, 0.05));
}
.chain li:last-child::after { display: none; }
.chain b {
  display: block;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--accent);
  margin-bottom: 8px;
}
.chain h3 { font-size: 17px; }
.chain p { margin-top: 6px; font-size: 13px; color: var(--text-2); }

.why-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}
.why-item {
  padding: 26px 24px 28px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  box-shadow: var(--shadow-sm);
  transition: border-color 0.3s var(--ease), transform 0.3s var(--ease), box-shadow 0.3s var(--ease);
}
.why-item:hover { border-color: rgba(16, 41, 79, 0.18); transform: translateY(-4px); box-shadow: var(--shadow); }
.why-item h3 { font-size: 18px; display: flex; align-items: baseline; gap: 10px; }
.why-item h3 span {
  color: var(--accent);
  font-family: var(--mono);
  font-size: 13px;
  font-weight: 700;
}
.why-item p { margin-top: 10px; font-size: 14px; color: var(--text-2); }

/* ---------- 方法论 ---------- */
.method { background: var(--bg); }
.method-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}
.method-step {
  padding: 28px 24px 30px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  box-shadow: var(--shadow-sm);
  transition: border-color 0.3s var(--ease), transform 0.3s var(--ease), box-shadow 0.3s var(--ease);
}
.method-step:hover {
  border-color: rgba(200, 16, 46, 0.30);
  transform: translateY(-5px);
  box-shadow: var(--shadow);
}
.step-num {
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 0.14em;
}
.method-step h3 {
  margin-top: 16px;
  font-size: 23px;
  letter-spacing: -0.02em;
}
.method-step .step-key {
  display: inline-block;
  margin-top: 10px;
  padding: 4px 11px;
  border-radius: 999px;
  border: 1px solid rgba(200, 16, 46, 0.22);
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 12px;
  font-weight: 600;
}
.method-step p {
  margin-top: 14px;
  font-size: 14px;
  color: var(--text-2);
}
/* ---------- 合作流程 ---------- */
.process { background: var(--bg-2); position: relative; overflow: hidden; }
.process::after {
  content: "";
  position: absolute;
  left: -200px;
  bottom: -220px;
  width: 620px;
  height: 620px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(61, 111, 214, 0.10), transparent 68%);
  filter: blur(20px);
  pointer-events: none;
}
.process .wrap { position: relative; z-index: 1; }
.process-list {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 16px;
}
.process-item {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 26px 22px;
  box-shadow: var(--shadow-sm);
  transition: transform 0.3s var(--ease), border-color 0.3s var(--ease), box-shadow 0.3s var(--ease);
}
.process-item:hover {
  transform: translateY(-5px);
  border-color: rgba(200, 16, 46, 0.28);
  box-shadow: var(--shadow);
}
.process-item .p-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 10px;
  background: linear-gradient(135deg, #d81b38, var(--accent-deep));
  color: #fff;
  font-family: var(--mono);
  font-size: 13px;
  font-weight: 700;
  box-shadow: 0 8px 18px -8px rgba(200, 16, 46, 0.55);
}
.process-item h3 { margin-top: 16px; font-size: 17px; }
.process-item p { margin-top: 8px; font-size: 13px; color: var(--text-2); min-height: 44px; }
.process-item .p-time {
  display: inline-block;
  margin-top: 14px;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--accent);
  font-weight: 600;
  letter-spacing: 0.04em;
}

/* ---------- FAQ ---------- */
.faq { background: var(--bg); }
.faq-list {
  border-top: 1px solid var(--line);
}
.faq-item { border-bottom: 1px solid var(--line); }
.faq-item summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 24px 4px;
  cursor: pointer;
  font-size: 17px;
  font-weight: 600;
  color: var(--ink);
  list-style: none;
  transition: color 0.2s var(--ease);
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: "";
  flex: none;
  width: 11px;
  height: 11px;
  border-right: 2px solid var(--text-3);
  border-bottom: 2px solid var(--text-3);
  transform: rotate(45deg) translateY(-3px);
  transition: transform 0.26s var(--ease), border-color 0.26s var(--ease);
}
.faq-item[open] summary::after {
  transform: rotate(-135deg) translateY(-3px);
  border-color: var(--accent);
}
.faq-item summary:hover { color: var(--accent); }
.faq-item[open] summary { color: var(--accent); }
.faq-a {
  padding: 0 56px 26px 4px;
  font-size: 15px;
  color: var(--text-2);
  max-width: 900px;
}

/* ---------- 底部 CTA ---------- */
.cta {
  background: linear-gradient(180deg, #ffffff, #f4f7fb);
  overflow: hidden;
  position: relative;
}
.cta::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(620px 440px at 86% 14%, rgba(200, 16, 46, 0.07), transparent 66%),
    radial-gradient(680px 480px at 0% 100%, rgba(61, 111, 214, 0.10), transparent 68%);
  filter: blur(14px);
  pointer-events: none;
}
.cta-inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(0, 0.7fr);
  gap: 48px;
  align-items: center;
}
.cta h2 { font-size: clamp(27px, 3.4vw, 40px); letter-spacing: -0.03em; }
.cta p { margin-top: 14px; color: var(--text-2); max-width: 520px; }
.cta-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 30px; }
.cta-contact {
  margin-top: 26px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px 32px;
  font-size: 14px;
  color: var(--text-2);
}
.cta-contact a, .cta-contact span { display: inline-flex; align-items: center; gap: 8px; }
.cta-contact a:hover { color: var(--accent); }
.cta-contact svg { color: var(--accent); flex: none; }
.cta-visual { display: flex; justify-content: center; }

/* CTA 区的小号标识徽章 */
.emblem--sm { max-width: 280px; }
.emblem--sm .emblem-mark { width: 46%; }

/* ---------- 页脚（深藏青收口） ---------- */
.site-footer {
  background:
    radial-gradient(620px 380px at 88% 0%, rgba(200, 16, 46, 0.16), transparent 64%),
    radial-gradient(700px 420px at 0% 100%, rgba(61, 111, 214, 0.20), transparent 66%),
    #081a33;
  color: rgba(255, 255, 255, 0.56);
  padding: 68px 0 28px;
  font-size: 14px;
}
.footer-top {
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) repeat(3, minmax(0, 0.9fr));
  gap: 40px;
  padding-bottom: 44px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.10);
}
.footer-brand { display: flex; align-items: center; gap: 12px; }
.footer-brand img { width: 36px; height: auto; }
.footer-brand b { display: block; color: #fff; font-size: 18px; letter-spacing: 0.04em; }
.footer-brand span { font-size: 11px; letter-spacing: 0.18em; color: rgba(255, 255, 255, 0.42); font-family: var(--mono); }
.footer-slogan { margin-top: 16px; font-size: 14px; color: rgba(255, 255, 255, 0.5); }
.footer-col h4 {
  color: #fff;
  font-size: 14px;
  margin-bottom: 16px;
  font-weight: 600;
}
.footer-col li + li { margin-top: 10px; }
.footer-col a { color: rgba(255, 255, 255, 0.56); transition: color 0.2s var(--ease); }
.footer-col a:hover { color: #fff; }
.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px;
  padding-top: 24px;
  font-size: 12px;
  color: rgba(255, 255, 255, 0.38);
}
.footer-bottom a { color: inherit; }
.footer-login a { color: rgba(255, 255, 255, 0.3); }

/* ---------- 访客账号 ---------- */
.account-shell { max-width: 760px; margin: 0 auto; }
.account-tabs { display: flex; gap: 8px; margin-bottom: 22px; }
.account-tabs button {
  padding: 8px 18px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: #fff;
  color: var(--text-2);
  font-size: 14px;
  cursor: pointer;
}
.account-tabs button.is-active {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
  font-weight: 600;
}
.account-hint { margin-top: 12px; font-size: 12px; color: var(--text-2); }
.account-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 20px;
}
.account-head b { display: block; font-size: 19px; }
.account-head span { display: block; font-size: 12px; color: var(--text-2); margin-top: 2px; }
.account-lead {
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 18px;
  margin-bottom: 14px;
  background: #fff;
}
.account-lead-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
.account-lead-head h3 { font-size: 16px; }
.account-status {
  padding: 3px 10px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  background: var(--bg-2);
  color: var(--text-2);
}
.account-status.is-new { background: #e8f0ff; color: #2456c7; }
.account-status.is-contacted { background: #fff4e2; color: #a96a00; }
.account-status.is-qualified { background: #efe9ff; color: #6035cf; }
.account-status.is-closed { background: #e7f7ef; color: #0b7a44; }
.account-status.is-invalid { background: #f0f2f8; color: #868ea6; }
.account-meta { margin-top: 6px; font-size: 12px; color: var(--text-2); }
.account-steps { display: flex; gap: 6px; margin-top: 14px; flex-wrap: wrap; }
.account-step {
  flex: 1;
  min-width: 96px;
  padding: 8px 10px;
  border-radius: 9px;
  background: var(--bg-2);
  font-size: 12px;
  color: var(--text-2);
  text-align: center;
}
.account-step.is-done { background: var(--accent-100); color: var(--accent); font-weight: 600; }
.account-step.is-current { background: var(--accent); color: #fff; font-weight: 600; }
.account-step.is-closed { background: #f0f2f8; color: #868ea6; flex: none; }
.account-message {
  margin-top: 12px;
  font-size: 13px;
  color: var(--text-2);
  white-space: pre-wrap;
  word-break: break-word;
}
.account-empty { padding: 32px 12px; text-align: center; color: var(--text-2); font-size: 14px; }
.captcha-row, .code-row { display: flex; gap: 8px; align-items: stretch; }
.captcha-row input, .code-row input { flex: 1; min-width: 0; }
.captcha-img {
  width: 120px;
  height: 44px;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: 9px;
  background: #f4f6fb;
  cursor: pointer;
  overflow: hidden;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: none;
}
.captcha-img svg { display: block; }
.code-row .btn { padding: 0 14px; white-space: nowrap; flex: none; }
.code-row .btn:disabled { opacity: .55; cursor: not-allowed; }

/* 滑块验证 */
.slider-captcha {
  position: relative;
  width: 280px;
  max-width: 100%;
  border: 1px solid var(--line);
  border-radius: 12px;
  overflow: hidden;
  background: #eef1f8;
  user-select: none;
  -webkit-user-select: none;
}
.slider-bg { height: 120px; }
.slider-bg svg { display: block; width: 100%; height: 100%; }
.slider-bg .slider-loading {
  height: 120px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  color: #9aa2b8;
}
.slider-piece {
  position: absolute;
  left: 0;
  top: 0;
  width: 44px;
  height: 44px;
  border-radius: 8px;
  border: 2px solid rgba(255, 255, 255, .95);
  background: rgba(255, 255, 255, .35);
  box-shadow: 0 0 0 1px rgba(16, 41, 79, .12) inset;
  pointer-events: none;
}
.slider-track {
  position: relative;
  height: 44px;
  background: #f4f6fb;
  border-top: 1px solid var(--line);
}
.slider-fill {
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 0;
  background: rgba(200, 16, 46, .08);
}
.slider-text {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  color: var(--text-2);
  pointer-events: none;
}
.slider-thumb {
  position: absolute;
  left: 0;
  top: 0;
  width: 44px;
  height: 44px;
  border: 0;
  border-radius: 8px;
  background: #fff;
  color: #10294f;
  box-shadow: 0 2px 8px rgba(16, 41, 79, .18);
  cursor: grab;
  display: flex;
  align-items: center;
  justify-content: center;
  touch-action: none;
  z-index: 2;
}
.slider-thumb:active { cursor: grabbing; }
.slider-captcha.is-passed .slider-thumb { background: #e7f7ef; color: #0b7a44; }
.slider-captcha.is-passed .slider-text { color: #0b7a44; font-weight: 600; }
.slider-captcha.is-failed .slider-thumb { background: #fdecef; color: var(--accent); }
.slider-captcha.is-failed .slider-text { color: var(--accent); }
.footer-bottom a:hover { color: rgba(255, 255, 255, 0.7); }

/* ---------- 配图 ---------- */
.figure {
  position: relative;
  margin: 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--bg-2);
  box-shadow: var(--shadow);
}
.figure img { width: 100%; height: 100%; object-fit: cover; display: block; }
.figure::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.5);
  pointer-events: none;
}
.figure--wide { aspect-ratio: 16 / 9; }
.figure--band { aspect-ratio: 21 / 9; }
.figure--43 { aspect-ratio: 4 / 3; }
.figure--32 { aspect-ratio: 3 / 2; }
.figure--wide, .figure--band { margin-bottom: 44px; }
.figure-note {
  margin-top: 12px;
  font-size: 12.5px;
  color: var(--text-3);
}

/* ---------- 插画横幅：文案叠在插画上 ---------- */
.banner {
  position: relative;
  isolation: isolate;
  display: flex;
  align-items: flex-end;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  background: var(--bg-2);
  box-shadow: var(--shadow);
  margin-bottom: 52px;
}
.banner-media { position: absolute; inset: 0; z-index: 0; }
.banner-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transform: scale(1.02);
  animation: banner-drift 24s ease-in-out infinite alternate;
}
.banner::after {
  content: "";
  position: absolute;
  inset: 30% 0 0 0;
  z-index: 1;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0) 0%, rgba(255, 255, 255, 0.58) 52%, rgba(255, 255, 255, 0.92) 100%);
  pointer-events: none;
}
.banner-inner {
  position: relative;
  z-index: 2;
  margin: 0 0 clamp(18px, 2.6vw, 38px) clamp(18px, 3vw, 40px);
  padding: 16px clamp(18px, 3vw, 40px) 0;
  max-width: 560px;
}
.banner .kicker { font-size: 12px; }
.banner h2 {
  margin-top: 12px;
  font-size: clamp(21px, 2.4vw, 30px);
  letter-spacing: -0.03em;
}
.banner p {
  margin-top: 10px;
  font-size: clamp(13.5px, 1.05vw, 15px);
  color: var(--text-2);
}
.js .banner > .banner-inner > * {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}
.js .banner.is-in > .banner-inner > * { opacity: 1; transform: none; }
.js .banner.is-in > .banner-inner > *:nth-child(1) { transition-delay: 0.1s; }
.js .banner.is-in > .banner-inner > *:nth-child(2) { transition-delay: 0.2s; }
.js .banner.is-in > .banner-inner > *:nth-child(3) { transition-delay: 0.3s; }

@keyframes banner-drift {
  from { transform: scale(1.02) translate3d(0, 0, 0); }
  to { transform: scale(1.07) translate3d(-1.4%, -1%, 0); }
}

/* ---------- 滚动渐显 ---------- */
.js .reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.8s var(--ease), transform 0.8s var(--ease);
}
.js .reveal.is-in { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation: none !important;
    transition: none !important;
  }
  .reveal, .js .reveal { opacity: 1; transform: none; }
}

/* ==========================================================================
   内页通用
   ========================================================================== */
.page-hero {
  position: relative;
  overflow: hidden;
  padding: 68px 0 68px;
  background: var(--bg);
  border-bottom: 1px solid var(--line);
}
.page-hero::before {
  content: "";
  position: absolute;
  inset: -20% -10% auto -10%;
  height: 160%;
  background:
    radial-gradient(700px 420px at 84% 0%, rgba(200, 16, 46, 0.09), transparent 64%),
    radial-gradient(760px 520px at 0% 26%, rgba(61, 111, 214, 0.12), transparent 68%),
    linear-gradient(180deg, #ffffff, #f7f9fc);
  filter: blur(2px);
  pointer-events: none;
}
.page-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(16, 41, 79, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(16, 41, 79, 0.04) 1px, transparent 1px);
  background-size: 68px 68px;
  -webkit-mask-image: radial-gradient(780px 460px at 34% 0%, #000 18%, transparent 74%);
  mask-image: radial-gradient(780px 460px at 34% 0%, #000 18%, transparent 74%);
  pointer-events: none;
}
.page-hero .wrap { position: relative; z-index: 1; }

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 13px;
  color: var(--text-3);
}
.breadcrumb a { transition: color 0.2s var(--ease); }
.breadcrumb a:hover { color: var(--accent); }
.breadcrumb span { color: var(--text-3); }

.page-hero h1 {
  margin-top: 20px;
  font-size: clamp(31px, 4.1vw, 50px);
  letter-spacing: -0.04em;
  max-width: 900px;
}
.page-hero .lead {
  margin-top: 16px;
  max-width: 720px;
  font-size: 17px;
  color: var(--text-2);
}
.page-hero .hero-actions { margin-top: 30px; }

.section.alt { background: var(--bg-2); }
.section.tint { background: var(--bg-3); }
.section.tight { padding-top: 64px; }

.card-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; }
.card-grid.two { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.card-grid.four { grid-template-columns: repeat(4, minmax(0, 1fr)); }

.info-card {
  display: block;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 26px;
  box-shadow: var(--shadow-sm);
  transition: transform 0.3s var(--ease), border-color 0.3s var(--ease), box-shadow 0.3s var(--ease);
}
.info-card:hover {
  transform: translateY(-4px);
  border-color: rgba(16, 41, 79, 0.18);
  box-shadow: var(--shadow);
}
.info-card .num {
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--accent);
}
.info-card h3 { margin-top: 12px; font-size: 18px; }
.info-card p { margin-top: 10px; font-size: 14px; color: var(--text-2); }

.check-list li {
  position: relative;
  padding-left: 26px;
  margin-top: 12px;
  font-size: 15px;
  color: var(--text-2);
}
.check-list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  top: 0;
  color: var(--accent);
  font-weight: 700;
  font-size: 14px;
}

.split { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 36px; align-items: start; }

.panel {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: var(--shadow-sm);
}
.panel h3 { font-size: 18px; }
.panel p { margin-top: 10px; color: var(--text-2); font-size: 15px; }

/* 强调面板：浅藏青渐层，作为需要压住视线的信息块，但不打断浅色节奏 */
.panel.dark {
  background:
    radial-gradient(460px 280px at 100% 0%, rgba(200, 16, 46, 0.10), transparent 62%),
    linear-gradient(155deg, #f6f9fd, #e9f0f9);
  border-color: rgba(16, 41, 79, 0.14);
  color: var(--text-2);
  box-shadow: var(--shadow-sm);
}
.panel.dark h3 { color: var(--ink); }
.panel.dark p, .panel.dark li { color: var(--text-2); }
.panel.dark .check-list li::before { color: var(--accent); }
.panel.dark a { color: var(--navy); font-weight: 600; }
.panel.dark a:hover { color: var(--accent); }

.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: #fff;
  box-shadow: var(--shadow-sm);
}
table.compare { width: 100%; border-collapse: collapse; font-size: 14px; min-width: 660px; }
table.compare th, table.compare td {
  padding: 15px 20px;
  text-align: left;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}
table.compare thead th {
  background: var(--bg-2);
  color: var(--ink);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.02em;
}
table.compare tbody tr:last-child td { border-bottom: 0; }
table.compare tbody tr { transition: background 0.2s var(--ease); }
table.compare tbody tr:hover { background: rgba(16, 41, 79, 0.02); }
table.compare td { color: var(--text-2); }
table.compare td:first-child { color: var(--ink); font-weight: 600; }
table.compare .hl { color: var(--accent); font-weight: 600; }

.step-list li {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  gap: 18px;
  padding: 22px 0;
  border-bottom: 1px solid var(--line);
}
.step-list li:last-child { border-bottom: 0; }
.step-list .idx {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: var(--accent-soft);
  border: 1px solid rgba(200, 16, 46, 0.20);
  color: var(--accent);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--mono);
  font-size: 13px;
  font-weight: 700;
}
.step-list h3 { font-size: 17px; }
.step-list p { margin-top: 6px; font-size: 14px; color: var(--text-2); }

.pill-list { display: flex; flex-wrap: wrap; gap: 10px; }
.pill-list li {
  padding: 8px 16px;
  border: 1px solid var(--line-2);
  border-radius: 999px;
  font-size: 14px;
  color: var(--text-2);
  background: #fff;
  transition: border-color 0.2s var(--ease), color 0.2s var(--ease);
}
.pill-list li:hover { border-color: rgba(200, 16, 46, 0.32); color: var(--accent); }

.cta-lite {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 32px 36px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  box-shadow: var(--shadow-sm);
}
.cta-lite h3 { font-size: 22px; }
.cta-lite p { margin-top: 8px; font-size: 14px; color: var(--text-2); }

/* ---------- 表单 ---------- */
.form { display: grid; gap: 18px; }
.field label { display: block; font-size: 14px; font-weight: 600; color: var(--ink); }
.field .req { color: var(--accent); }
.field input, .field textarea, .field select {
  width: 100%;
  margin-top: 8px;
  padding: 12px 14px;
  border: 1px solid var(--line-2);
  border-radius: 10px;
  background: #fff;
  font: inherit;
  font-size: 15px;
  color: var(--text);
  transition: border-color 0.2s var(--ease), box-shadow 0.2s var(--ease), background 0.2s var(--ease);
}
.field input::placeholder, .field textarea::placeholder { color: var(--text-3); }
.field select option { background: #fff; color: var(--text); }
.field input:focus, .field textarea:focus, .field select:focus {
  outline: none;
  border-color: var(--accent);
  background: #fff;
  box-shadow: 0 0 0 3px rgba(200, 16, 46, 0.10);
}
.field textarea { resize: vertical; min-height: 120px; }
.field.invalid input, .field.invalid textarea, .field.invalid select {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(200, 16, 46, 0.08);
}
.field .err { display: none; margin-top: 6px; font-size: 12px; color: var(--accent); }
.field.invalid .err { display: block; }
.form-foot { display: flex; align-items: flex-start; gap: 10px; font-size: 13px; color: var(--text-3); }
.form-foot input { width: 16px; height: 16px; margin-top: 3px; accent-color: var(--accent); }
.form-foot a { color: var(--accent); }
.form-status {
  display: none;
  padding: 14px 18px;
  border-radius: 10px;
  background: rgba(23, 160, 105, 0.08);
  border: 1px solid rgba(23, 160, 105, 0.24);
  color: #128a5a;
  font-size: 14px;
}
.form-status.show { display: block; }

/* ---------- 长文 ---------- */
.doc { max-width: 820px; }
.doc h2 { font-size: 22px; margin-top: 38px; }
.doc h2:first-child { margin-top: 0; }
.doc p, .doc li { margin-top: 12px; font-size: 15px; color: var(--text-2); }
.doc ul { list-style: disc; padding-left: 22px; }
.doc strong { color: var(--ink); }

/* ==========================================================================
   悬浮 AI 客服窗（浅色极简）
   ========================================================================== */
.aichat {
  position: fixed;
  right: 22px;
  bottom: 22px;
  z-index: 130;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 12px;
  pointer-events: none;
}
.aichat-fab {
  position: relative;
  z-index: 0;
  width: 96px;
  height: 104px;
  pointer-events: auto;
  padding: 0;
  border: 0;
  background: none;
  box-shadow: none;
  display: grid;
  place-items: end center;
  transition: transform 0.28s var(--ease);
  animation: fab-bob 6s ease-in-out infinite;
}
.aichat-fab::before {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 6px;
  width: 78%;
  aspect-ratio: 1 / 1;
  transform: translateX(-50%);
  z-index: -1;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(200, 16, 46, 0.18), rgba(61, 111, 214, 0.16) 52%, transparent 74%);
  filter: blur(12px);
  animation: fab-halo 4.6s ease-in-out infinite;
}
.aichat-fab:hover {
  transform: translateY(-4px) scale(1.04);
  animation-play-state: paused;
}
.aichat-mascot {
  width: 88%;
  height: 88%;
  object-fit: contain;
  object-position: bottom center;
  filter: drop-shadow(0 16px 22px rgba(16, 41, 79, 0.26));
}
.aichat-fab::after {
  content: "";
  position: absolute;
  right: 8px;
  bottom: 8px;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: #17a069;
  border: 2px solid #fff;
  box-shadow: 0 0 0 3px rgba(23, 160, 105, 0.14);
}

@keyframes fab-bob {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-6px); }
}
@keyframes fab-halo {
  0%, 100% { opacity: 0.5; transform: scale(0.94); }
  50% { opacity: 1; transform: scale(1.06); }
}

.aichat-bubble {
  position: absolute;
  right: 106px;
  bottom: 34px;
  padding: 9px 14px;
  border-radius: 12px 12px 4px 12px;
  background: #fff;
  border: 1px solid var(--line);
  box-shadow: var(--shadow-sm);
  font-size: 13px;
  font-weight: 600;
  color: var(--navy);
  white-space: nowrap;
  opacity: 0;
  transform: translateX(8px);
  transition: opacity 0.4s var(--ease), transform 0.4s var(--ease);
  pointer-events: none;
}
.aichat.is-ready .aichat-bubble { opacity: 1; transform: translateX(0); }
.aichat.is-open .aichat-bubble { opacity: 0; }

.aichat-panel {
  display: flex;
  flex-direction: column;
  width: 360px;
  height: 0;
  overflow: hidden;
  opacity: 0;
  transform: translateY(10px) scale(0.98);
  transform-origin: bottom right;
  border: 1px solid var(--line-2);
  border-radius: 20px;
  background: #fff;
  box-shadow: var(--shadow-lg);
  transition: height 0.34s var(--ease), opacity 0.3s var(--ease), transform 0.3s var(--ease);
  pointer-events: none;
}
.aichat.is-open .aichat-panel {
  height: min(660px, calc(100vh - 118px));
  opacity: 1;
  transform: translateY(0) scale(1);
  pointer-events: auto;
}

.aichat-head {
  display: flex;
  align-items: center;
  gap: 11px;
  padding: 14px 16px;
  border-bottom: 1px solid var(--line);
  background: linear-gradient(180deg, #fbfcfe, #fff);
  border-radius: 18px 18px 0 0;
}
.aichat-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  object-fit: cover;
  border: 1px solid var(--line);
  flex: none;
}
.aichat-id { flex: 1; min-width: 0; display: flex; flex-direction: column; line-height: 1.35; }
.aichat-id b { font-size: 14px; color: var(--ink); }
.aichat-id span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 11.5px;
  color: var(--text-3);
}
.aichat-id span::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #17a069;
}
.aichat-close {
  flex: none;
  width: 30px;
  height: 30px;
  display: grid;
  place-items: center;
  border: 1px solid transparent;
  border-radius: 8px;
  background: transparent;
  color: var(--text-3);
  transition: color 0.2s var(--ease), background 0.2s var(--ease);
}
.aichat-close:hover { color: var(--accent); background: var(--accent-soft); }

/* 消息区：唯一可滚动区域，常用问题与输入框始终固定 */
.aichat-log {
  flex: 1 1 auto;
  min-height: 0;
  overflow-y: auto;
  overscroll-behavior: contain;
  padding: 16px 14px 4px;
  background: var(--bg-2);
  scrollbar-width: thin;
  scrollbar-color: rgba(16, 41, 79, 0.2) transparent;
}
.aichat-log::-webkit-scrollbar { width: 6px; }
.aichat-log::-webkit-scrollbar-thumb {
  background: rgba(16, 41, 79, 0.18);
  border-radius: 999px;
}
.aichat-msg {
  max-width: 88%;
  padding: 10px 13px;
  border-radius: 12px;
  font-size: 13.5px;
  line-height: 1.62;
  margin-bottom: 10px;
  word-break: break-word;
  white-space: pre-line;
}
.aichat-msg.bot {
  background: #fff;
  border: 1px solid var(--line);
  color: var(--text);
  border-top-left-radius: 4px;
  box-shadow: 0 1px 2px rgba(16, 41, 79, 0.04);
}
.aichat-msg.me {
  margin-left: auto;
  background: linear-gradient(135deg, #17396a, #10294f);
  color: #fff;
  border-top-right-radius: 4px;
}
/* 流式输出时的光标 */
.aichat-msg.is-typing::after {
  content: "";
  display: inline-block;
  width: 2px;
  height: 1em;
  margin-left: 2px;
  vertical-align: -0.16em;
  background: var(--accent);
  animation: caret-blink 0.9s steps(1) infinite;
}
@keyframes caret-blink {
  0%, 49% { opacity: 1; }
  50%, 100% { opacity: 0; }
}
/* 等待回复的三点动画 */
.aichat-typing { display: inline-flex; align-items: center; gap: 4px; padding: 3px 0; }
.aichat-typing i {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--text-3);
  animation: typing-dot 1.2s ease-in-out infinite;
}
.aichat-typing i:nth-child(2) { animation-delay: 0.16s; }
.aichat-typing i:nth-child(3) { animation-delay: 0.32s; }
@keyframes typing-dot {
  0%, 60%, 100% { opacity: 0.32; transform: translateY(0); }
  30% { opacity: 1; transform: translateY(-3px); }
}
/* 机器人回复里的人工入口 */
.aichat-msg-actions { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 9px; padding-top: 8px; border-top: 1px dashed var(--line); }
.aichat-msg-actions button {
  padding: 6px 11px;
  border: 1px solid var(--line-2);
  border-radius: 8px;
  background: var(--bg-2);
  font-size: 12px;
  color: var(--navy);
  transition: border-color 0.2s var(--ease), color 0.2s var(--ease), background 0.2s var(--ease);
}
.aichat-msg-actions button:hover { border-color: rgba(200, 16, 46, 0.4); color: var(--accent); background: #fff; }

/* 常用问题：常驻面板，不随聊天记录滚动 */
.aichat-quick {
  flex: none;
  padding: 10px 14px 12px;
  border-top: 1px solid var(--line);
  background: #fff;
}
.aichat-quick-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 8px;
  transition: margin-bottom 0.24s var(--ease);
}
.aichat-quick-title {
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--text-3);
}
.aichat-quick .aichat-quick-toggle {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 2px 5px;
  border: 0;
  border-radius: 6px;
  background: transparent;
  font-size: 11px;
  line-height: 1.4;
  color: var(--text-3);
  transition: color 0.2s var(--ease), background 0.2s var(--ease);
}
.aichat-quick .aichat-quick-toggle:hover {
  color: var(--accent);
  background: rgba(200, 16, 46, 0.05);
}
.aichat-quick-toggle svg { transition: transform 0.24s var(--ease); }
.aichat-quick.is-collapsed .aichat-quick-toggle svg { transform: rotate(180deg); }
.aichat-quick-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 6px;
  overflow: hidden;
  max-height: 240px;
  opacity: 1;
  visibility: visible;
  transition: max-height 0.28s var(--ease), opacity 0.2s var(--ease), visibility 0.28s;
}
.aichat-quick.is-collapsed .aichat-quick-head { margin-bottom: 0; }
.aichat-quick.is-collapsed .aichat-quick-list {
  max-height: 0;
  opacity: 0;
  visibility: hidden;
}
.aichat-quick button {
  padding: 7px 9px;
  border: 1px solid var(--line);
  border-radius: 9px;
  background: #fff;
  font-size: 12px;
  line-height: 1.4;
  text-align: left;
  color: var(--navy);
  transition: border-color 0.2s var(--ease), color 0.2s var(--ease), background 0.2s var(--ease);
}
.aichat-quick button:hover {
  border-color: rgba(200, 16, 46, 0.35);
  color: var(--accent);
  background: rgba(200, 16, 46, 0.03);
}
.aichat-quick button[aria-disabled="true"] { opacity: 0.55; pointer-events: none; }

/* 输入区 */
.aichat-input {
  flex: none;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  border-top: 1px solid var(--line);
  background: #fff;
}
.aichat-input-field {
  flex: 1 1 auto;
  min-width: 0;
  height: 38px;
  padding: 0 12px;
  border: 1px solid var(--line-2);
  border-radius: 10px;
  background: var(--bg-2);
  font: inherit;
  font-size: 13px;
  color: var(--text);
  transition: border-color 0.2s var(--ease), background 0.2s var(--ease), box-shadow 0.2s var(--ease);
}
.aichat-input-field::placeholder { color: var(--text-3); }
.aichat-input-field:focus {
  outline: none;
  border-color: rgba(200, 16, 46, 0.45);
  background: #fff;
  box-shadow: 0 0 0 3px rgba(200, 16, 46, 0.08);
}
.aichat-send {
  flex: none;
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  border: 0;
  border-radius: 10px;
  background: linear-gradient(135deg, #d81b38, var(--accent) 52%, var(--accent-deep));
  color: #fff;
  box-shadow: 0 8px 18px -8px rgba(200, 16, 46, 0.6);
  transition: transform 0.2s var(--ease), box-shadow 0.2s var(--ease), opacity 0.2s var(--ease);
}
.aichat-send:hover { transform: translateY(-1px); box-shadow: 0 12px 22px -10px rgba(200, 16, 46, 0.65); }
.aichat-send:disabled { opacity: 0.5; pointer-events: none; }

.aichat-foot {
  flex: none;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--line);
}
.aichat-foot > * {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 11px 6px;
  border: 0;
  background: transparent;
  font-size: 12.5px;
  color: var(--text-2);
  transition: color 0.2s var(--ease), background 0.2s var(--ease);
}
.aichat-foot > * + * { border-left: 1px solid var(--line); }
.aichat-foot > *:hover { color: var(--accent); background: var(--bg-2); }
.aichat-foot svg { flex: none; }
.aichat-foot button { border-radius: 0; }

/* ==========================================================================
   联系人工弹窗
   ========================================================================== */
.contact-modal {
  position: fixed;
  inset: 0;
  z-index: 220;
  display: grid;
  place-items: center;
  padding: 20px;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.26s var(--ease), visibility 0.26s var(--ease);
}
.contact-modal.is-open { opacity: 1; visibility: visible; pointer-events: auto; }
.contact-modal-mask {
  position: absolute;
  inset: 0;
  background: rgba(8, 24, 47, 0.44);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}
.contact-modal-card {
  position: relative;
  width: min(440px, 100%);
  padding: 26px 24px 22px;
  border: 1px solid rgba(255, 255, 255, 0.6);
  border-radius: 20px;
  background: #fff;
  box-shadow: 0 40px 90px -30px rgba(8, 24, 47, 0.55);
  transform: translateY(14px) scale(0.98);
  transition: transform 0.3s var(--ease);
}
.contact-modal.is-open .contact-modal-card { transform: translateY(0) scale(1); }
.contact-modal-close {
  position: absolute;
  top: 14px;
  right: 14px;
  width: 32px;
  height: 32px;
  display: grid;
  place-items: center;
  border: 1px solid transparent;
  border-radius: 9px;
  background: transparent;
  color: var(--text-3);
  transition: color 0.2s var(--ease), background 0.2s var(--ease);
}
.contact-modal-close:hover { color: var(--accent); background: var(--accent-soft); }
.contact-modal-title { font-size: 18px; letter-spacing: -0.01em; }
.contact-modal-sub {
  margin-top: 6px;
  font-size: 12.5px;
  color: var(--text-3);
}
.contact-tile {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 12px;
  margin-top: 12px;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: linear-gradient(180deg, #fbfcfe, #fff);
  transition: border-color 0.25s var(--ease), box-shadow 0.25s var(--ease);
}
.contact-tile:first-of-type { margin-top: 18px; }
.contact-tile.is-highlight {
  border-color: rgba(200, 16, 46, 0.4);
  box-shadow: 0 0 0 3px rgba(200, 16, 46, 0.08);
}
.contact-tile-icon {
  flex: none;
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  border-radius: 11px;
  background: var(--accent-soft);
  color: var(--accent);
}
.contact-tile-main { flex: 1 1 132px; min-width: 0; display: flex; flex-direction: column; gap: 1px; }
.contact-tile-label { font-size: 11px; letter-spacing: 0.08em; color: var(--text-3); }
.contact-tile-value {
  display: block;
  font-family: var(--mono);
  font-size: 13.5px;
  font-weight: 700;
  color: var(--ink);
  letter-spacing: 0.01em;
  word-break: break-all;
}
.contact-copy {
  flex: none;
  padding: 7px 11px;
  border: 1px solid var(--line-2);
  border-radius: 8px;
  background: #fff;
  font-size: 12px;
  color: var(--text-2);
  transition: border-color 0.2s var(--ease), color 0.2s var(--ease), background 0.2s var(--ease);
}
.contact-copy:hover { border-color: rgba(200, 16, 46, 0.4); color: var(--accent); }
.contact-copy.is-done { border-color: rgba(23, 160, 105, 0.45); color: #17a069; background: rgba(23, 160, 105, 0.06); }
.contact-action {
  flex: none;
  padding: 7px 13px;
  border-radius: 8px;
  background: linear-gradient(135deg, #d81b38, var(--accent) 52%, var(--accent-deep));
  font-size: 12px;
  font-weight: 600;
  color: #fff;
  box-shadow: 0 8px 18px -10px rgba(200, 16, 46, 0.6);
}
.contact-modal-note {
  margin-top: 14px;
  font-size: 12px;
  color: var(--text-3);
}
.contact-modal-note a { color: var(--accent); text-decoration: underline; text-underline-offset: 3px; }
body.is-modal-open { overflow: hidden; }

/* ==========================================================================
   响应式
   ========================================================================== */
@media (max-width: 1024px) {
  .hero-grid { grid-template-columns: 1fr; gap: 44px; padding-bottom: 56px; }
  .hero-visual { order: -1; }
  .hero-stage { max-width: 400px; }
  .pain-list { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .service-groups { grid-template-columns: 1fr; }
  .why-grid { grid-template-columns: 1fr; gap: 18px; }
  .method-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .process-list { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .chain { grid-template-columns: repeat(2, 1fr); }
  .chain li:nth-child(2n)::after { display: none; }
  .card-grid, .card-grid.four { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .cta-inner { grid-template-columns: 1fr; gap: 36px; }
  .cta-visual { display: none; }
  .footer-top { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 32px; }
}

@media (max-width: 860px) {
  .header-inner { height: 64px; gap: 16px; }
  .brand-mark { height: 30px; }
  .brand-text b { font-size: 17px; }
  .nav-toggle { display: inline-flex; }
  .header-cta { display: none; }
  .nav {
    position: fixed;
    inset: 64px 0 auto 0;
    flex-direction: column;
    align-items: stretch;
    gap: 2px;
    margin: 0;
    padding: 14px 20px 22px;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    border-bottom: 1px solid var(--line);
    box-shadow: 0 24px 48px -32px rgba(16, 41, 79, 0.4);
    transform: translateY(-12px);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.26s var(--ease), transform 0.26s var(--ease), visibility 0.26s;
  }
  .nav.is-open { opacity: 1; transform: translateY(0); visibility: visible; }
  .nav a { padding: 12px 4px; font-size: 16px; border-bottom: 1px solid var(--line); }
  .nav a::after { display: none; }
  .nav a.is-active { color: var(--accent); }
  .nav .btn {
    display: inline-flex;
    justify-content: center;
    margin-top: 14px;
    border-bottom: 0;
  }
  .section { padding: 68px 0; }
  .section-head { margin-bottom: 36px; }
  .hero { padding-top: 44px; }
  /* 窄屏下柔光范围收小，避免整屏泛红 */
  .hero::before {
    inset: -6% -8% auto -8%;
    background:
      radial-gradient(360px 300px at 88% 2%, rgba(200, 16, 46, 0.05), transparent 66%),
      radial-gradient(440px 400px at 4% 30%, rgba(61, 111, 214, 0.09), transparent 68%),
      linear-gradient(180deg, #ffffff 0%, #f8fafd 60%, #ffffff 100%);
  }
  .page-hero::before {
    background:
      radial-gradient(360px 280px at 92% 0%, rgba(200, 16, 46, 0.05), transparent 66%),
      radial-gradient(420px 340px at 0% 30%, rgba(61, 111, 214, 0.09), transparent 68%),
      linear-gradient(180deg, #ffffff, #f7f9fc);
  }
  /* 手机上先给标题与行动按钮，视觉图排在后面 */
  .hero-visual { order: 0; }
  .hero-grid { gap: 34px; }
  .hero-stage { max-width: 350px; padding-bottom: 64px; }
  .stage-mascot { width: 76%; max-width: 270px; }
  .page-hero { padding: 48px 0 52px; }
  .cta-lite { flex-direction: column; align-items: flex-start; padding: 26px; }
  .contact-split { grid-template-columns: 1fr !important; }
}

@media (max-width: 760px) {
  .banner { aspect-ratio: auto; display: block; margin-bottom: 36px; }
  .banner::after { display: none; }
  .banner-media { position: relative; inset: auto; aspect-ratio: 16 / 10; }
  .banner-inner {
    margin: -42px 14px 14px;
    max-width: none;
    padding: 14px 20px 0;
  }
}

@media (max-width: 720px) {
  .card-grid, .card-grid.two, .card-grid.four { grid-template-columns: 1fr; }
  .method-grid { grid-template-columns: 1fr; }
  .process-list { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .split { grid-template-columns: 1fr; gap: 26px; }
  .footer-top { grid-template-columns: 1fr; }
}

@media (max-width: 560px) {
  .wrap { padding: 0 18px; }
  .hero h1 { font-size: 36px; }
  .hero-actions .btn { flex: 1 1 auto; justify-content: center; }
  .hero-strip { display: none; }
  .pain-list { grid-template-columns: 1fr; }
  .chain { grid-template-columns: 1fr; }
  .chain li::after { display: none; }
  .hero { padding: 52px 0 30px; }
  .hero-grid { gap: 22px; padding-bottom: 30px; }
  .hero-stage { max-width: 240px; padding-bottom: 40px; }
  .stage-mascot { max-width: 200px; }
  .emblem { max-width: 220px; }
  .faq-a { padding-right: 20px; }
  .doc h2 { font-size: 20px; }
  .hero-status { font-size: 12px; letter-spacing: 0.06em; }
}

/* 客服窗移动端 */
@media (max-width: 560px) {
  .aichat { right: 14px; bottom: 14px; gap: 9px; }
  .aichat-fab { width: 84px; height: 92px; }
  .aichat-bubble { right: 92px; bottom: 28px; padding: 8px 12px; font-size: 12px; }
  .aichat.is-open .aichat-fab { display: none; }
  .aichat-panel { width: calc(100vw - 28px); }
  .aichat.is-open .aichat-panel { height: calc(100vh - 28px); height: calc(100dvh - 28px); }
  .aichat-quick { padding: 9px 12px 11px; }
  .aichat-quick button { font-size: 11.5px; padding: 7px 8px; }
  .aichat-input { padding: 9px 12px; }
  .contact-modal-card { padding: 24px 18px 18px; }
  .contact-tile {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr) auto;
    align-items: center;
    gap: 9px 10px;
  }
  .contact-tile-main { flex: none; }
  .contact-copy { grid-column: 3; grid-row: 1; }
  .contact-action { grid-column: 1 / -1; justify-content: center; text-align: center; }
}