/* ==========================================================================
   思睿软件 · 企业站样式（静态原型）
   纯手写 CSS，无框架、无外部依赖；配色/间距/圆角统一走 CSS 变量。
   ========================================================================== */

:root {
  --brand: #4f46e5;
  --brand-2: #2563eb;
  --brand-3: #06b6d4;
  --brand-soft: #eef2ff;

  --ink: #0b1220;
  --ink-2: #131c31;
  --text: #1f2937;
  --muted: #64748b;
  --muted-2: #94a3b8;
  --line: #e2e8f0;
  --line-dark: rgba(255, 255, 255, 0.12);
  --bg: #f8fafc;
  --white: #ffffff;

  --radius-sm: 10px;
  --radius: 14px;
  --radius-lg: 20px;
  --radius-xl: 28px;

  --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.06);
  --shadow: 0 12px 32px rgba(15, 23, 42, 0.08);
  --shadow-lg: 0 28px 64px rgba(15, 23, 42, 0.18);

  --container: 1200px;
  --header-h: 74px;
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
}

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

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 92px;
}

body {
  margin: 0;
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Source Han Sans SC",
    "Hiragino Sans GB", sans-serif;
  font-size: 16px;
  line-height: 1.75;
  color: var(--text);
  background: var(--white);
  -webkit-font-smoothing: antialiased;
}

img,
svg {
  display: block;
  max-width: 100%;
}

a {
  color: inherit;
  text-decoration: none;
}

ul,
ol {
  margin: 0;
  padding: 0;
  list-style: none;
}

h1,
h2,
h3,
h4,
p {
  margin: 0;
}

button,
input,
textarea {
  font: inherit;
  color: inherit;
}

::selection {
  background: rgba(79, 70, 229, 0.18);
}

:focus-visible {
  outline: 3px solid rgba(79, 70, 229, 0.45);
  outline-offset: 3px;
  border-radius: 6px;
}

[hidden] {
  display: none !important;
}

/* ---------- 布局工具 ---------- */

.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 96px 0;
}

.section--tight {
  padding: 64px 0;
}

.section--soft {
  background: var(--bg);
}

.section--dark {
  background: var(--ink);
  color: var(--white);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border-radius: 999px;
  background: var(--brand-soft);
  color: var(--brand);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.eyebrow--dark {
  background: rgba(255, 255, 255, 0.1);
  color: #c7d2fe;
}

.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 32px;
  margin-bottom: 48px;
}

.section-head__text {
  max-width: 640px;
}

.section-head h2 {
  margin-top: 16px;
  font-size: clamp(28px, 3vw, 40px);
  line-height: 1.25;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.section-head p {
  margin-top: 14px;
  color: var(--muted);
  font-size: 16px;
}

.section--dark .section-head h2 {
  color: var(--white);
}

.section--dark .section-head p {
  color: #a9b6cc;
}

.link-more {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--brand);
  font-size: 15px;
  font-weight: 600;
  white-space: nowrap;
  transition: gap 0.25s var(--ease), color 0.25s var(--ease);
}

.link-more:hover {
  gap: 12px;
  color: var(--brand-2);
}

/* ---------- 按钮 ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 50px;
  padding: 0 26px;
  border: 1px solid transparent;
  border-radius: 12px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.2s var(--ease), box-shadow 0.2s var(--ease),
    background 0.2s var(--ease), border-color 0.2s var(--ease);
}

.btn:hover {
  transform: translateY(-1px);
}

.btn--primary {
  background: linear-gradient(135deg, var(--brand) 0%, var(--brand-2) 100%);
  color: var(--white);
  box-shadow: 0 10px 24px rgba(79, 70, 229, 0.28);
}

.btn--primary:hover {
  box-shadow: 0 16px 34px rgba(79, 70, 229, 0.36);
}

.btn--ghost {
  background: rgba(255, 255, 255, 0.06);
  border-color: rgba(255, 255, 255, 0.28);
  color: var(--white);
}

.btn--ghost:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(255, 255, 255, 0.5);
}

.btn--outline {
  background: var(--white);
  border-color: var(--line);
  color: var(--ink);
}

.btn--outline:hover {
  border-color: var(--brand);
  color: var(--brand);
}

.btn--sm {
  height: 42px;
  padding: 0 18px;
  font-size: 14px;
  border-radius: 10px;
}

/* ---------- 顶栏 ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.86);
  backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.25s var(--ease), box-shadow 0.25s var(--ease);
}

.site-header.is-stuck {
  border-color: var(--line);
  box-shadow: 0 8px 24px rgba(15, 23, 42, 0.06);
}

.header-inner {
  display: flex;
  align-items: center;
  gap: 32px;
  height: var(--header-h);
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  flex: 0 0 auto;
}

.logo img {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  box-shadow: 0 8px 18px rgba(79, 70, 229, 0.28);
}

.logo__text {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}

.logo__name {
  font-size: 20px;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--ink);
}

.logo__slogan {
  font-size: 11px;
  letter-spacing: 0.22em;
  color: var(--muted-2);
}

.nav {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-left: auto;
}

.nav a {
  position: relative;
  padding: 10px 14px;
  border-radius: 10px;
  font-size: 15px;
  color: #334155;
  transition: color 0.2s var(--ease), background 0.2s var(--ease);
}

.nav a:hover {
  color: var(--brand);
  background: var(--brand-soft);
}

.nav a.is-active {
  color: var(--brand);
  font-weight: 600;
}

.nav a.is-active::after {
  content: "";
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: 2px;
  height: 2px;
  border-radius: 2px;
  background: var(--brand);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 14px;
  flex: 0 0 auto;
}

.header-phone {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
  text-align: right;
}

.header-phone span {
  font-size: 11px;
  color: var(--muted-2);
}

.header-phone strong {
  font-size: 15px;
  color: var(--ink);
  letter-spacing: 0.02em;
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--white);
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  margin: 4px auto;
  border-radius: 2px;
  background: var(--ink);
  transition: transform 0.2s var(--ease), opacity 0.2s var(--ease);
}

/* ---------- 首页 Hero ---------- */

.hero {
  position: relative;
  overflow: hidden;
  background: var(--ink);
  color: var(--white);
  padding: 84px 0 72px;
}

.hero::before {
  content: "";
  position: absolute;
  inset: -20% -10% auto auto;
  width: 720px;
  height: 720px;
  background: radial-gradient(circle at center, rgba(79, 70, 229, 0.55), transparent 62%);
  filter: blur(10px);
  pointer-events: none;
}

.hero::after {
  content: "";
  position: absolute;
  inset: auto auto -30% -15%;
  width: 620px;
  height: 620px;
  background: radial-gradient(circle at center, rgba(6, 182, 212, 0.28), transparent 65%);
  pointer-events: none;
}

.hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  align-items: center;
  gap: 64px;
}

.hero h1 {
  margin-top: 22px;
  font-size: clamp(34px, 4.2vw, 56px);
  line-height: 1.18;
  letter-spacing: -0.02em;
  font-weight: 700;
}

.hero h1 .grad {
  background: linear-gradient(100deg, #a5b4fc 0%, #60a5fa 45%, #67e8f9 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero__lead {
  margin-top: 22px;
  max-width: 520px;
  color: #b9c4d8;
  font-size: 17px;
  line-height: 1.85;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 34px;
}

/* 简化版首屏：居中、无产品示意图、无大数字 */
.hero--simple {
  padding: 96px 0 84px;
  text-align: center;
}

.hero--simple::before {
  inset: -40% -20% auto auto;
  width: 620px;
  height: 620px;
  opacity: 0.75;
}

.hero--simple::after {
  display: none;
}

.hero--simple .hero__inner {
  position: relative;
  z-index: 1;
  max-width: 760px;
  margin: 0 auto;
}

.hero--simple h1 {
  margin-top: 20px;
  font-size: clamp(30px, 3.6vw, 44px);
  font-weight: 700;
  line-height: 1.28;
}

.hero--simple .hero__lead {
  margin: 20px auto 0;
  max-width: 620px;
  font-size: 16px;
}

.hero--simple .hero-actions {
  justify-content: center;
  margin-top: 30px;
}

.hero-note {
  margin-top: 26px;
  font-size: 13px;
  color: #8fa0bb;
}

.cap-grid--3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.section-head--center {
  justify-content: center;
  text-align: center;
}

.section-head--center .section-head__text {
  margin: 0 auto;
}

.section-head--center .section-head__text p {
  margin-left: auto;
  margin-right: auto;
  max-width: 560px;
}

/* 极简服务列表：无卡片、无图标，只有标题和一行说明 */
.simple-title {
  font-size: clamp(20px, 2.2vw, 24px);
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 40px;
}

.services-simple {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 48px;
}

.services-simple article {
  padding-top: 22px;
  border-top: 2px solid var(--line);
  transition: border-color 0.25s var(--ease);
}

.services-simple article:hover {
  border-top-color: var(--brand);
}

.services-simple h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--ink);
}

.services-simple p {
  margin-top: 10px;
  font-size: 14px;
  color: var(--muted);
}

@media (max-width: 820px) {
  .services-simple {
    grid-template-columns: minmax(0, 1fr);
    gap: 0;
  }

  .services-simple article {
    padding: 20px 0;
    border-top: 1px solid var(--line);
  }
}

/* 关于与联系合并后的简单区块 */
.about-simple {
  max-width: 760px;
  margin: 0 auto;
  text-align: center;
}

.about-simple h2 {
  font-size: clamp(24px, 2.8vw, 32px);
  line-height: 1.35;
  color: var(--ink);
}

.about-simple > p {
  margin-top: 16px;
  color: var(--muted);
}

.about-simple .about-links {
  margin-top: 20px;
  font-size: 14px;
  color: #475569;
}

.about-simple .about-links a {
  color: var(--brand);
  font-weight: 600;
}

.about-simple .about-links span {
  margin: 0 8px;
  color: #cbd5e1;
}

.about-simple .about-actions {
  margin-top: 26px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 24px;
  margin-top: 52px;
  padding-top: 28px;
  border-top: 1px solid var(--line-dark);
}

.hero-stats strong {
  display: block;
  font-size: clamp(24px, 2.4vw, 32px);
  line-height: 1.1;
  letter-spacing: -0.01em;
}

.hero-stats span {
  display: block;
  margin-top: 6px;
  font-size: 13px;
  color: #93a3bd;
}

/* ---------- Hero 右侧产品界面（纯 CSS 模拟） ---------- */

.mockup {
  position: relative;
  border-radius: var(--radius-lg);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.14), rgba(255, 255, 255, 0.04));
  border: 1px solid rgba(255, 255, 255, 0.16);
  padding: 10px;
  box-shadow: var(--shadow-lg);
  transform: perspective(1200px) rotateY(-6deg) rotateX(2deg);
}

.mockup__bar {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 8px 10px;
}

.mockup__dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.28);
}

.mockup__title {
  margin-left: 10px;
  font-size: 11px;
  letter-spacing: 0.12em;
  color: rgba(255, 255, 255, 0.55);
}

.mockup__body {
  border-radius: 14px;
  background: #f7f9ff;
  color: #0f172a;
  padding: 16px;
}

.mock-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 14px;
}

.mock-head strong {
  font-size: 14px;
}

.mock-head span {
  font-size: 11px;
  color: #64748b;
}

.mock-tiles {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}

.mock-tile {
  border-radius: 10px;
  background: #fff;
  border: 1px solid #e6ebf5;
  padding: 10px 11px;
}

.mock-tile span {
  display: block;
  font-size: 10px;
  color: #7c8aa3;
}

.mock-tile strong {
  display: block;
  margin-top: 2px;
  font-size: 17px;
  letter-spacing: -0.02em;
}

.mock-tile em {
  font-style: normal;
  font-size: 10px;
  color: #16a34a;
}

.mock-chart {
  display: flex;
  align-items: flex-end;
  gap: 8px;
  height: 108px;
  margin-top: 12px;
  padding: 12px;
  border-radius: 10px;
  background: #fff;
  border: 1px solid #e6ebf5;
}

.mock-chart i {
  flex: 1;
  border-radius: 4px 4px 2px 2px;
  background: linear-gradient(180deg, #6366f1, #a5b4fc);
  opacity: 0.9;
}

.mock-chart i:nth-child(2n) {
  background: linear-gradient(180deg, #2563eb, #93c5fd);
}

.mock-rows {
  margin-top: 12px;
  border-radius: 10px;
  background: #fff;
  border: 1px solid #e6ebf5;
  overflow: hidden;
}

.mock-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 12px;
  font-size: 11px;
  color: #475569;
  border-bottom: 1px solid #eef2f8;
}

.mock-row:last-child {
  border-bottom: 0;
}

.mock-row b {
  font-weight: 600;
  color: #0f172a;
}

.mock-badge {
  padding: 2px 8px;
  border-radius: 999px;
  background: #ecfdf5;
  color: #059669;
  font-size: 10px;
}

.mock-float {
  position: absolute;
  right: -18px;
  bottom: -22px;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  border-radius: 14px;
  background: #fff;
  color: #0f172a;
  box-shadow: var(--shadow);
}

.mock-float__icon {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: 10px;
  background: #ecfdf5;
  color: #059669;
}

.mock-float strong {
  display: block;
  font-size: 13px;
}

.mock-float span {
  display: block;
  font-size: 11px;
  color: #64748b;
}

/* ---------- 客户 Logo 墙 ---------- */

.trust {
  padding: 44px 0;
  border-bottom: 1px solid var(--line);
  background: var(--white);
}

.trust__label {
  text-align: center;
  font-size: 13px;
  color: var(--muted-2);
  letter-spacing: 0.14em;
}

.trust__list {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 18px;
  margin-top: 22px;
}

.trust__item {
  display: grid;
  place-items: center;
  height: 58px;
  border-radius: 12px;
  border: 1px dashed var(--line);
  color: #94a3b8;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.08em;
  transition: color 0.25s var(--ease), border-color 0.25s var(--ease),
    background 0.25s var(--ease);
}

.trust__item:hover {
  color: var(--brand);
  border-color: rgba(79, 70, 229, 0.35);
  background: var(--brand-soft);
}

/* ---------- 能力卡片 ---------- */

.cap-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 20px;
}

.cap-card {
  padding: 26px 24px 28px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
  transition: transform 0.25s var(--ease), box-shadow 0.25s var(--ease),
    border-color 0.25s var(--ease);
}

.cap-card:hover {
  transform: translateY(-4px);
  border-color: rgba(79, 70, 229, 0.28);
  box-shadow: var(--shadow);
}

.cap-card__icon {
  display: grid;
  place-items: center;
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: linear-gradient(135deg, rgba(79, 70, 229, 0.12), rgba(37, 99, 235, 0.08));
  color: var(--brand);
}

.cap-card h3 {
  margin-top: 18px;
  font-size: 18px;
  color: var(--ink);
}

.cap-card p {
  margin-top: 10px;
  font-size: 14px;
  color: var(--muted);
}

/* ---------- 解决方案 ---------- */

.solution {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  align-items: center;
  gap: 64px;
  padding: 56px 0;
}

.solution + .solution {
  border-top: 1px solid var(--line);
}

.solution--reverse .solution__body {
  order: 2;
}

.solution__tag {
  display: inline-flex;
  padding: 5px 12px;
  border-radius: 999px;
  background: var(--brand-soft);
  color: var(--brand);
  font-size: 12px;
  font-weight: 600;
}

.solution h3 {
  margin-top: 16px;
  font-size: clamp(24px, 2.6vw, 32px);
  line-height: 1.3;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.solution p {
  margin-top: 14px;
  color: var(--muted);
}

.solution__list {
  margin-top: 22px;
  display: grid;
  gap: 12px;
}

.solution__list li {
  display: flex;
  gap: 12px;
  font-size: 15px;
  color: #334155;
}

.solution__list svg {
  flex: 0 0 20px;
  margin-top: 4px;
  color: var(--brand);
}

.solution__link {
  margin-top: 26px;
}

/* 解决方案可视化面板 */
.visual {
  position: relative;
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  background: linear-gradient(160deg, #f8faff 0%, #eef2ff 100%);
  padding: 26px;
  box-shadow: var(--shadow-sm);
}

.visual::after {
  content: "";
  position: absolute;
  inset: 18px;
  border-radius: 16px;
  border: 1px dashed rgba(79, 70, 229, 0.18);
  pointer-events: none;
}

.visual__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: relative;
  z-index: 1;
}

.visual__head strong {
  font-size: 14px;
  color: var(--ink);
}

.visual__head span {
  font-size: 11px;
  color: var(--muted);
}

.visual__bars {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: flex-end;
  gap: 10px;
  height: 150px;
  margin-top: 18px;
  padding: 16px;
  border-radius: 14px;
  background: #fff;
  border: 1px solid #e8edf7;
}

.visual__bars i {
  flex: 1;
  border-radius: 5px 5px 2px 2px;
  background: linear-gradient(180deg, #4f46e5, #c7d2fe);
}

.visual__bars i:nth-child(3n) {
  background: linear-gradient(180deg, #0ea5e9, #bae6fd);
}

.visual__nodes {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  margin-top: 16px;
}

.visual__node {
  padding: 12px;
  border-radius: 12px;
  background: #fff;
  border: 1px solid #e8edf7;
}

.visual__node b {
  display: block;
  font-size: 12px;
  color: var(--ink);
}

.visual__node span {
  display: block;
  margin-top: 4px;
  font-size: 11px;
  color: var(--muted);
}

.visual__flow {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 18px;
  padding: 14px;
  border-radius: 12px;
  background: #fff;
  border: 1px solid #e8edf7;
  font-size: 12px;
  color: #475569;
}

.visual__flow em {
  flex: 1;
  height: 6px;
  border-radius: 999px;
  background: linear-gradient(90deg, #4f46e5, #22d3ee);
  font-style: normal;
}

.visual__rows {
  position: relative;
  z-index: 1;
  margin-top: 16px;
  border-radius: 12px;
  background: #fff;
  border: 1px solid #e8edf7;
  overflow: hidden;
}

/* ---------- 案例卡片 ---------- */

.case-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
}

.case-card {
  display: flex;
  flex-direction: column;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--white);
  overflow: hidden;
  transition: transform 0.28s var(--ease), box-shadow 0.28s var(--ease),
    border-color 0.28s var(--ease);
}

.case-card:hover {
  transform: translateY(-6px);
  border-color: rgba(79, 70, 229, 0.25);
  box-shadow: var(--shadow);
}

.case-cover {
  position: relative;
  aspect-ratio: 16 / 10;
  background: linear-gradient(140deg, #312e81 0%, #4f46e5 48%, #0ea5e9 100%);
  overflow: hidden;
}

.case-cover::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: linear-gradient(rgba(255, 255, 255, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.08) 1px, transparent 1px);
  background-size: 28px 28px;
  opacity: 0.6;
}

.case-cover--b {
  background: linear-gradient(140deg, #0f766e 0%, #0891b2 55%, #22d3ee 100%);
}

.case-cover--c {
  background: linear-gradient(140deg, #7c2d12 0%, #c2410c 50%, #f59e0b 100%);
}

.case-cover__index {
  position: absolute;
  right: 18px;
  bottom: 6px;
  font-size: 64px;
  font-weight: 800;
  letter-spacing: -0.04em;
  color: rgba(255, 255, 255, 0.22);
}

.case-cover__chip {
  position: absolute;
  left: 18px;
  top: 18px;
  padding: 5px 12px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.16);
  backdrop-filter: blur(6px);
  color: #fff;
  font-size: 12px;
  letter-spacing: 0.06em;
}

.case-cover__shape {
  position: absolute;
  left: 22px;
  bottom: -26px;
  width: 180px;
  height: 110px;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.14);
  border: 1px solid rgba(255, 255, 255, 0.28);
  box-shadow: 0 24px 40px rgba(2, 6, 23, 0.25);
}

.case-cover__shape::after {
  content: "";
  position: absolute;
  left: 16px;
  right: 16px;
  top: 18px;
  height: 8px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.5);
  box-shadow: 0 18px 0 rgba(255, 255, 255, 0.24),
    0 36px 0 rgba(255, 255, 255, 0.16);
}

.case-body {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 22px 22px 24px;
}

.case-body h3 {
  font-size: 18px;
  line-height: 1.45;
  color: var(--ink);
}

.case-body p {
  font-size: 14px;
  color: var(--muted);
}

.case-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 4px;
  font-size: 12px;
  color: var(--muted-2);
}

.case-meta span + span::before {
  content: "·";
  margin-right: 10px;
}

/* ---------- 为什么选择我们 ---------- */

.why-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  gap: 64px;
  align-items: center;
}

.why-list {
  display: grid;
  gap: 22px;
  margin-top: 30px;
}

.why-title {
  margin-top: 16px;
  font-size: clamp(28px, 3vw, 40px);
  line-height: 1.25;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.why-item {
  display: flex;
  gap: 16px;
}

.why-item__num {
  flex: 0 0 40px;
  height: 40px;
  display: grid;
  place-items: center;
  border-radius: 12px;
  background: var(--brand-soft);
  color: var(--brand);
  font-weight: 700;
  font-size: 14px;
}

.why-item h3 {
  font-size: 17px;
  color: var(--ink);
}

.why-item p {
  margin-top: 4px;
  font-size: 14px;
  color: var(--muted);
}

.why-panel {
  border-radius: var(--radius-xl);
  background: linear-gradient(160deg, #111c33 0%, #0b1220 100%);
  color: #fff;
  padding: 34px;
  box-shadow: var(--shadow-lg);
  position: relative;
  overflow: hidden;
}

.why-panel::before {
  content: "";
  position: absolute;
  right: -60px;
  top: -60px;
  width: 220px;
  height: 220px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(79, 70, 229, 0.55), transparent 65%);
}

.why-panel h3 {
  position: relative;
  font-size: 20px;
  z-index: 1;
}

.why-panel p {
  position: relative;
  margin-top: 8px;
  color: #a9b6cc;
  font-size: 14px;
  z-index: 1;
}

.why-metrics {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 14px;
  margin-top: 26px;
}

.why-metric {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  padding: 16px 18px;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.why-metric span {
  font-size: 13px;
  color: #a9b6cc;
}

.why-metric strong {
  font-size: 22px;
  letter-spacing: -0.01em;
}

/* ---------- 资讯 ---------- */

.news-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  gap: 28px;
  align-items: start;
}

.news-feature {
  display: block;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--white);
  transition: transform 0.28s var(--ease), box-shadow 0.28s var(--ease);
}

.news-feature:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}

.news-feature__cover {
  aspect-ratio: 16 / 8;
  background: linear-gradient(135deg, #1e1b4b 0%, #4338ca 55%, #0ea5e9 100%);
  position: relative;
}

.news-feature__cover::after {
  content: "思睿观察";
  position: absolute;
  left: 22px;
  bottom: 18px;
  padding: 5px 12px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.16);
  color: #fff;
  font-size: 12px;
  letter-spacing: 0.08em;
}

.news-feature__body {
  padding: 24px;
}

.news-feature__body h3 {
  font-size: 20px;
  line-height: 1.5;
  color: var(--ink);
}

.news-feature__body p {
  margin-top: 10px;
  font-size: 14px;
  color: var(--muted);
}

.news-date {
  margin-top: 14px;
  font-size: 12px;
  color: var(--muted-2);
}

.news-list {
  display: grid;
  gap: 4px;
}

.news-item {
  display: grid;
  grid-template-columns: 64px minmax(0, 1fr);
  gap: 18px;
  padding: 20px 18px;
  border-radius: var(--radius);
  border: 1px solid transparent;
  transition: background 0.25s var(--ease), border-color 0.25s var(--ease);
}

.news-item:hover {
  background: var(--white);
  border-color: var(--line);
}

.news-item time {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 64px;
  border-radius: 12px;
  background: var(--brand-soft);
  color: var(--brand);
  line-height: 1.1;
}

.news-item time b {
  font-size: 20px;
}

.news-item time span {
  font-size: 11px;
  color: #6366f1;
  margin-top: 4px;
}

.news-item h3 {
  font-size: 16px;
  line-height: 1.55;
  color: var(--ink);
}

.news-item p {
  margin-top: 4px;
  font-size: 13px;
  color: var(--muted);
}

/* ---------- CTA ---------- */

.cta-band {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-xl);
  padding: 56px;
  background: linear-gradient(120deg, #4338ca 0%, #4f46e5 45%, #0ea5e9 100%);
  color: var(--white);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
}

.cta-band::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(255, 255, 255, 0.18) 1px, transparent 1px);
  background-size: 22px 22px;
  opacity: 0.35;
}

.cta-band__text,
.cta-band__actions {
  position: relative;
  z-index: 1;
}

.cta-band h2 {
  font-size: clamp(26px, 3vw, 36px);
  line-height: 1.3;
  letter-spacing: -0.01em;
}

.cta-band p {
  margin-top: 10px;
  color: rgba(255, 255, 255, 0.85);
}

.cta-band__actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.cta-band .btn--outline {
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(255, 255, 255, 0.4);
  color: #fff;
}

.cta-band .btn--outline:hover {
  background: rgba(255, 255, 255, 0.2);
  color: #fff;
}

.cta-band .btn--primary {
  background: #fff;
  color: #4338ca;
  box-shadow: 0 12px 28px rgba(2, 6, 23, 0.24);
}

/* ---------- 页脚 ---------- */

.site-footer {
  background: var(--ink);
  color: #a9b6cc;
  padding: 64px 0 0;
  font-size: 14px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr repeat(3, minmax(0, 1fr));
  gap: 40px;
  padding-bottom: 44px;
}

.footer-brand .logo__name {
  color: #fff;
}

.footer-brand p {
  margin-top: 16px;
  max-width: 320px;
  font-size: 13px;
  line-height: 1.9;
}

.footer-contact {
  margin-top: 22px;
  display: grid;
  gap: 8px;
  font-size: 13px;
}

.footer-contact b {
  color: #fff;
  font-size: 20px;
  letter-spacing: 0.02em;
}

.footer-col h3 {
  color: #fff;
  font-size: 15px;
  margin-bottom: 16px;
}

.footer-col ul {
  display: grid;
  gap: 10px;
}

.footer-col a {
  color: #a9b6cc;
  font-size: 13px;
  transition: color 0.2s var(--ease);
}

.footer-col a:hover {
  color: #fff;
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 12px;
  color: #7d8CA3;
}

.footer-bottom a:hover {
  color: #fff;
}

/* ---------- 内页：页头 ---------- */

.page-hero {
  position: relative;
  overflow: hidden;
  background: var(--ink);
  color: #fff;
  padding: 72px 0 64px;
}

.page-hero::before {
  content: "";
  position: absolute;
  right: -8%;
  top: -60%;
  width: 560px;
  height: 560px;
  background: radial-gradient(circle, rgba(79, 70, 229, 0.5), transparent 62%);
}

.page-hero h1 {
  position: relative;
  margin-top: 18px;
  font-size: clamp(30px, 3.4vw, 44px);
  line-height: 1.25;
  letter-spacing: -0.01em;
}

.page-hero p {
  position: relative;
  margin-top: 14px;
  max-width: 620px;
  color: #b9c4d8;
  font-size: 16px;
}

.breadcrumb {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  font-size: 13px;
  color: #8fa0bb;
}

.breadcrumb a:hover {
  color: #fff;
}

.breadcrumb span {
  color: #5f708c;
}

/* ---------- 内页：筛选 ---------- */

.filters {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 36px;
}

.filter-chip {
  padding: 8px 18px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--white);
  color: #475569;
  font-size: 14px;
  cursor: pointer;
  transition: all 0.2s var(--ease);
}

.filter-chip:hover {
  border-color: rgba(79, 70, 229, 0.4);
  color: var(--brand);
}

.filter-chip.is-active {
  background: var(--brand);
  border-color: var(--brand);
  color: #fff;
}

/* ---------- 内页：列表分页 ---------- */

.pagination {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-top: 48px;
}

.pagination a,
.pagination span {
  min-width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  padding: 0 14px;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: #fff;
  color: #475569;
  font-size: 14px;
}

.pagination .is-current {
  background: var(--brand);
  border-color: var(--brand);
  color: #fff;
}

.pagination a:hover {
  border-color: rgba(79, 70, 229, 0.4);
  color: var(--brand);
}

/* ---------- 关于我们 ---------- */

.about-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  gap: 64px;
  align-items: start;
}

.about-copy p + p {
  margin-top: 16px;
}

.about-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.about-stat {
  padding: 26px;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: var(--white);
}

.about-stat strong {
  display: block;
  font-size: 32px;
  letter-spacing: -0.02em;
  color: var(--brand);
}

.about-stat span {
  display: block;
  margin-top: 6px;
  font-size: 13px;
  color: var(--muted);
}

.timeline {
  position: relative;
  display: grid;
  gap: 26px;
  margin-top: 8px;
  padding-left: 26px;
}

.timeline::before {
  content: "";
  position: absolute;
  left: 7px;
  top: 6px;
  bottom: 6px;
  width: 2px;
  background: linear-gradient(180deg, var(--brand), rgba(79, 70, 229, 0.1));
}

.timeline__item {
  position: relative;
}

.timeline__item::before {
  content: "";
  position: absolute;
  left: -26px;
  top: 6px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: #fff;
  border: 3px solid var(--brand);
}

.timeline__item time {
  font-size: 13px;
  font-weight: 600;
  color: var(--brand);
}

.timeline__item h3 {
  margin-top: 4px;
  font-size: 17px;
  color: var(--ink);
}

.timeline__item p {
  margin-top: 4px;
  font-size: 14px;
  color: var(--muted);
}

/* ---------- 联系我们 ---------- */

.contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: 56px;
  align-items: start;
}

.contact-cards {
  display: grid;
  gap: 16px;
}

.contact-card {
  display: flex;
  gap: 16px;
  padding: 22px;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: var(--white);
}

.contact-card__icon {
  flex: 0 0 44px;
  height: 44px;
  display: grid;
  place-items: center;
  border-radius: 12px;
  background: var(--brand-soft);
  color: var(--brand);
}

.contact-card h3 {
  font-size: 15px;
  color: var(--ink);
}

.contact-card p {
  margin-top: 4px;
  font-size: 14px;
  color: var(--muted);
}

.contact-card strong {
  color: var(--ink);
  font-size: 16px;
}

.form-card {
  padding: 32px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  background: var(--white);
  box-shadow: var(--shadow-sm);
}

.form-card h2 {
  font-size: 22px;
  color: var(--ink);
}

.form-card > p {
  margin-top: 6px;
  font-size: 13px;
  color: var(--muted);
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin-top: 22px;
}

.field {
  display: grid;
  gap: 8px;
}

.field--full {
  grid-column: 1 / -1;
}

.field label {
  font-size: 13px;
  color: #475569;
}

.field input,
.field textarea,
.field select {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: #fbfcfe;
  padding: 12px 14px;
  font-size: 14px;
  transition: border-color 0.2s var(--ease), background 0.2s var(--ease);
}

.field input:focus,
.field textarea:focus,
.field select:focus {
  outline: none;
  border-color: var(--brand);
  background: #fff;
}

.field textarea {
  min-height: 120px;
  resize: vertical;
}

.form-note {
  margin-top: 16px;
  font-size: 12px;
  color: var(--muted-2);
}

.form-actions {
  margin-top: 22px;
}

.map-placeholder {
  margin-top: 56px;
  border-radius: var(--radius-lg);
  border: 1px dashed var(--line);
  background: repeating-linear-gradient(
      45deg,
      #f8fafc,
      #f8fafc 12px,
      #f1f5f9 12px,
      #f1f5f9 24px
    );
  height: 300px;
  display: grid;
  place-items: center;
  color: var(--muted-2);
  font-size: 14px;
}

/* ---------- 案例详情 ---------- */

.article {
  max-width: 820px;
  margin: 0 auto;
}

.article h2 {
  margin-top: 36px;
  font-size: 24px;
  color: var(--ink);
}

.article p {
  margin-top: 14px;
  color: #334155;
}

.article ul {
  margin-top: 14px;
  display: grid;
  gap: 10px;
  padding-left: 20px;
  list-style: disc;
  color: #334155;
}

.article figure {
  margin: 28px 0;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--line);
}

.article figure img {
  display: block;
  width: 100%;
  height: auto;
}

.article figure div {
  aspect-ratio: 16 / 8;
  background: linear-gradient(135deg, #312e81, #4f46e5 60%, #0ea5e9);
}

.alert {
  margin-top: 18px;
  padding: 12px 16px;
  border-radius: 10px;
  font-size: 14px;
  line-height: 1.6;
}

.alert--success {
  background: #ecfdf5;
  border: 1px solid #a7f3d0;
  color: #047857;
}

.alert--error {
  background: #fef2f2;
  border: 1px solid #fecaca;
  color: #b91c1c;
}

.download-box {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  margin: 30px 0;
  padding: 22px 24px;
  border-radius: var(--radius);
  background: var(--brand-soft);
  border: 1px solid rgba(79, 70, 229, 0.16);
}

.download-box strong {
  display: block;
  font-size: 16px;
  color: var(--ink);
}

.download-box p {
  margin-top: 4px;
  font-size: 13px;
  color: var(--muted);
}

.site-empty {
  padding: 56px 0;
  text-align: center;
  color: var(--muted);
}

.pagination .is-total {
  border: 0;
  background: transparent;
  color: var(--muted);
  min-width: 0;
}

.honeypot {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.article figcaption {
  padding: 12px 16px;
  font-size: 12px;
  color: var(--muted);
  background: var(--bg);
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 10px;
  font-size: 13px;
  color: var(--muted-2);
}

.result-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin: 30px 0;
}

.result-card {
  padding: 22px;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: var(--bg);
}

.result-card strong {
  display: block;
  font-size: 28px;
  letter-spacing: -0.02em;
  color: var(--brand);
}

.result-card span {
  display: block;
  margin-top: 6px;
  font-size: 13px;
  color: var(--muted);
}

.article blockquote {
  margin: 28px 0 0;
  padding: 22px 24px;
  border-left: 3px solid var(--brand);
  border-radius: 0 12px 12px 0;
  background: var(--brand-soft);
  color: #3730a3;
  font-size: 15px;
}

.article blockquote footer {
  margin-top: 10px;
  font-size: 13px;
  color: #6366f1;
}

/* ---------- 滚动显现（无 JS 时内容默认可见） ---------- */

body.js-anim .reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}

body.js-anim .reveal.is-visible {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  body.js-anim .reveal,
  body.js-anim .reveal.is-visible {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .btn,
  .case-card,
  .cap-card {
    transition: none;
  }
}

/* ---------- 响应式 ---------- */

@media (max-width: 1080px) {
  .hero-grid,
  .why-grid,
  .about-grid,
  .contact-grid {
    grid-template-columns: minmax(0, 1fr);
    gap: 44px;
  }

  .mockup {
    transform: none;
    max-width: 560px;
  }

  .cap-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .cap-grid--3 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .trust__list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .case-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .news-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .footer-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .cta-band {
    flex-direction: column;
    align-items: flex-start;
    padding: 40px;
  }
}

@media (max-width: 820px) {
  .section {
    padding: 72px 0;
  }

  .nav {
    position: fixed;
    inset: var(--header-h) 0 auto;
    display: grid;
    gap: 2px;
    padding: 14px 20px 22px;
    background: rgba(255, 255, 255, 0.98);
    border-bottom: 1px solid var(--line);
    box-shadow: 0 18px 30px rgba(15, 23, 42, 0.08);
    transform: translateY(-12px);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s var(--ease), transform 0.2s var(--ease);
  }

  .nav.is-open {
    opacity: 1;
    transform: none;
    pointer-events: auto;
  }

  .nav a {
    padding: 12px 14px;
  }

  .nav-toggle {
    display: block;
  }

  .header-actions {
    margin-left: auto;
  }

  .header-phone {
    display: none;
  }

  .solution {
    grid-template-columns: minmax(0, 1fr);
    gap: 32px;
    padding: 40px 0;
  }

  .solution--reverse .solution__body {
    order: 0;
  }

  .section-head {
    flex-direction: column;
    align-items: flex-start;
    gap: 18px;
    margin-bottom: 34px;
  }

  .section-head--center {
    align-items: center;
    text-align: center;
  }

  .hero {
    padding: 60px 0 56px;
  }

  .hero-stats {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
  }

  .case-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .form-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .result-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .footer-grid {
    grid-template-columns: minmax(0, 1fr);
    gap: 28px;
  }

  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
  }

  .cta-band {
    padding: 32px 24px;
    border-radius: var(--radius-lg);
  }
}

@media (max-width: 560px) {
  .container {
    padding: 0 18px;
  }

  .logo__slogan {
    display: none;
  }

  .header-actions .btn {
    display: none;
  }

  .hero h1 {
    font-size: 30px;
  }

  .hero__lead {
    font-size: 15px;
  }

  .hero-actions .btn {
    flex: 1 1 100%;
  }

  .mock-tiles {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .mock-float {
    display: none;
  }

  .trust__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .cap-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .cap-grid--3 {
    grid-template-columns: minmax(0, 1fr);
  }

  .page-hero {
    padding: 52px 0 44px;
  }
}