/* ============================================================
   Access-Wize 艾康纬 — 国内企业展示官网 v5
   styles.css  |  纯静态  |  无框架  |  响应式
   设计参考：access-wize.com landing page
   ============================================================ */

/* ── CSS 变量 ─────────────────────────────────────────────── */
:root {
  /* 品牌色（与海外站一致） */
  --color-orange:      #E8630A;
  --color-blue:        #1E90FF;
  --color-blue-dark:   #1570CC;
  --color-navy:        #0D1B2E;
  --color-navy-mid:    #1A2D45;
  --color-purple:      #6B46C1;
  --color-teal:        #0D9488;

  /* 中性色 */
  --color-bg:          #FFFFFF;
  --color-bg-alt:      #F4F7FB;
  --color-bg-dark:     #0D1B2E;
  --color-border:      #E2E8F2;
  --color-border-dark: rgba(255,255,255,0.12);
  --color-text:        #1A2A3A;
  --color-text-muted:  #5B6B82;
  --color-text-light:  #8A97A8;
  --color-text-white:  #FFFFFF;
  --color-text-white70: rgba(255,255,255,0.75);

  /* 强调浅色背景 */
  --color-blue-bg:     #EEF5FF;
  --color-blue-mid:    rgba(30,144,255,0.12);
  --color-orange-bg:   rgba(232,99,10,0.08);

  /* 间距 */
  --space-xs:   8px;
  --space-sm:   16px;
  --space-md:   24px;
  --space-lg:   40px;
  --space-xl:   64px;
  --space-2xl:  96px;

  /* 圆角 */
  --radius-sm:  8px;
  --radius-md:  12px;
  --radius-lg:  16px;
  --radius-xl:  24px;
  --radius-full: 9999px;

  /* 阴影 */
  --shadow-xs:  0 1px 3px rgba(15,39,71,0.06);
  --shadow-sm:  0 2px 8px rgba(15,39,71,0.08);
  --shadow-md:  0 4px 16px rgba(15,39,71,0.10);
  --shadow-lg:  0 8px 32px rgba(15,39,71,0.12);
  --shadow-card: 0 2px 12px rgba(15,39,71,0.08), 0 0 0 1px rgba(15,39,71,0.04);

  /* 过渡 */
  --transition: 0.22s ease;

  /* 最大宽度 */
  --max-width: 1200px;
}

/* ── 重置 & 基础 ───────────────────────────────────────────── */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: 'Noto Sans SC', -apple-system, BlinkMacSystemFont,
               'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
  background-color: var(--color-bg);
  color: var(--color-text);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }

/* ── 容器 ─────────────────────────────────────────────────── */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin-inline: auto;
  padding-inline: var(--space-md);
}

/* ── 通用 section 标题 ────────────────────────────────────── */
.section-header {
  text-align: center;
  margin-bottom: var(--space-lg);
}

.section-eyebrow {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  color: var(--color-blue);
  text-transform: uppercase;
  margin-bottom: 10px;
}

.section-title {
  font-size: clamp(1.75rem, 3vw, 2.25rem);
  font-weight: 700;
  color: var(--color-navy);
  line-height: 1.25;
  margin-bottom: 12px;
}

.section-divider {
  width: 48px;
  height: 3px;
  background: linear-gradient(90deg, var(--color-orange), var(--color-blue));
  border-radius: var(--radius-full);
  margin: 0 auto 16px;
}

.section-subtitle {
  font-size: 1rem;
  color: var(--color-text-muted);
  max-width: 560px;
  margin-inline: auto;
  line-height: 1.7;
}

/* ── 按钮 ─────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: var(--radius-md);
  font-size: 0.9375rem;
  font-weight: 600;
  line-height: 1;
  transition: all var(--transition);
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-blue) 0%, var(--color-blue-dark) 100%);
  color: #fff;
  box-shadow: 0 2px 12px rgba(30,144,255,0.30);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(30,144,255,0.40);
}

.btn-ghost {
  background-color: rgba(255,255,255,0.12);
  color: #fff;
  border: 1.5px solid rgba(255,255,255,0.35);
  backdrop-filter: blur(4px);
}
.btn-ghost:hover {
  background-color: rgba(255,255,255,0.22);
  border-color: rgba(255,255,255,0.6);
  color: #fff;
  transform: translateY(-1px);
}

.btn-outline-white {
  background: rgba(255,255,255,0.12);
  color: #fff;
  border: 1.5px solid rgba(255,255,255,0.45);
  backdrop-filter: blur(4px);
}
.btn-outline-white:hover {
  background: rgba(255,255,255,0.22);
  border-color: rgba(255,255,255,0.7);
  transform: translateY(-2px);
}

.btn-hero-cta {
  background: linear-gradient(135deg, var(--color-orange) 0%, #c94f00 100%);
  color: #fff;
  box-shadow: 0 2px 12px rgba(232,99,10,0.35);
}
.btn-hero-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(232,99,10,0.45);
}

.btn-cta-large {
  background: linear-gradient(135deg, var(--color-blue) 0%, var(--color-blue-dark) 100%);
  color: #fff;
  padding: 16px 36px;
  font-size: 1.0625rem;
  border-radius: var(--radius-lg);
  box-shadow: 0 4px 20px rgba(30,144,255,0.35);
}
.btn-cta-large:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 28px rgba(30,144,255,0.45);
}

.btn-wechat {
  background: #07C160;
  color: #fff;
  padding: 14px 28px;
  border-radius: var(--radius-md);
  font-size: 0.9375rem;
  font-weight: 600;
  box-shadow: 0 2px 12px rgba(7,193,96,0.30);
  flex-shrink: 0;
}
.btn-wechat:hover {
  background: #06ad56;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(7,193,96,0.40);
}

/* ── 导航栏 ───────────────────────────────────────────────── */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  box-shadow: var(--shadow-xs);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
  gap: var(--space-md);
}

.header-logo {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}

.logo-img { height: 26px; width: auto; }

.logo-badge-img {
  height: 32px;
  width: auto;
  margin-left: 6px;
}

.logo-cn-tag {
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--color-text-muted);
  padding-left: 8px;
  border-left: 1px solid var(--color-border);
}

.site-nav {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.nav-link {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-text-muted);
  padding: 6px 4px;
  transition: color var(--transition);
  position: relative;
}
.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-blue);
  border-radius: var(--radius-full);
  transition: width var(--transition);
}
.nav-link:hover { color: var(--color-blue); }
.nav-link:hover::after { width: 100%; }

.nav-cta { padding: 9px 18px; font-size: 0.875rem; }

/* 汉堡菜单 */
.menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 36px;
  height: 36px;
  padding: 4px;
  border-radius: var(--radius-sm);
  transition: background var(--transition);
}
.menu-toggle:hover { background: var(--color-bg-alt); }
.menu-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-text);
  border-radius: var(--radius-full);
  transition: all var(--transition);
}
.menu-toggle.is-active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.menu-toggle.is-active span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.menu-toggle.is-active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ── Hero 区 ──────────────────────────────────────────────── */
.hero {
  position: relative;
  min-height: 600px;
  display: flex;
  align-items: center;
  padding-block: 100px 120px;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-bg-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.hero-bg-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    rgba(10, 22, 40, 0.88) 0%,
    rgba(13, 27, 46, 0.80) 50%,
    rgba(20, 35, 60, 0.75) 100%
  );
}

.hero-bottom-fade {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 120px;
  background: linear-gradient(to bottom, transparent, var(--color-bg));
  z-index: 1;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 680px;
}

/* Hero Logo 标签（v3 样式）*/
.hero-eyebrow-logo {
  margin-bottom: var(--space-md);
}

.hero-eyebrow-logo-img {
  width: 200px;
  height: auto;
  object-fit: contain;
  display: block;
  filter: drop-shadow(0 1px 4px rgba(0,0,0,0.3));
}

@media (max-width: 480px) {
  .hero-eyebrow-logo-img { width: 160px; }
}

/* Hero 大标题 */
.hero-title {
  font-size: clamp(2.4rem, 5vw, 3.8rem);
  font-weight: 800;
  color: var(--color-text-white);
  letter-spacing: 0.04em;
  line-height: 1.15;
  margin-bottom: var(--space-md);
}

/* Hero 副标题 */
.hero-desc {
  font-size: clamp(1rem, 1.8vw, 1.125rem);
  color: var(--color-text-white70);
  line-height: 1.8;
  margin-bottom: var(--space-lg);
  max-width: 580px;
}

.hero-br { display: inline; }

/* 行动按钮组 */
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  margin-bottom: var(--space-xl);
}


/* ── 三大能力卡片 ─────────────────────────────────────────── */
.capability-section {
  padding-block: var(--space-xl);
  background: var(--color-bg);
}

.capability-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
}

.cap-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-md) var(--space-lg);
  box-shadow: var(--shadow-card);
  transition: box-shadow var(--transition), transform var(--transition);
}
.cap-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-3px);
}

.cap-card-inner {
  display: flex;
  gap: var(--space-md);
  align-items: flex-start;
}

.cap-icon {
  flex-shrink: 0;
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
}

.cap-icon-blue  { background: var(--color-blue-bg);  color: var(--color-blue); }
.cap-icon-purple { background: rgba(107,70,193,0.1); color: var(--color-purple); }
.cap-icon-teal  { background: rgba(13,148,136,0.1);  color: var(--color-teal); }

.cap-eyebrow {
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--color-blue);
  text-transform: uppercase;
  margin-bottom: 6px;
}

.cap-title {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--color-navy);
  margin-bottom: 8px;
}

.cap-desc {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  line-height: 1.65;
}

/* ── 企业简介 ─────────────────────────────────────────────── */
.about-section {
  padding-block: var(--space-2xl);
  background: var(--color-bg-alt);
}

.about-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-2xl);
  align-items: center;
}

.about-lead {
  font-size: 1.0625rem;
  color: var(--color-text-muted);
  line-height: 1.8;
  margin-bottom: var(--space-lg);
}

.about-cards {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.about-card {
  display: flex;
  align-items: flex-start;
  gap: var(--space-sm);
  padding: var(--space-md);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-xs);
  transition: box-shadow var(--transition);
}
.about-card:hover { box-shadow: var(--shadow-md); }

.about-card-icon {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  background: var(--color-blue-bg);
  color: var(--color-blue);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
}

.about-card-title {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--color-navy);
  margin-bottom: 4px;
}

.about-card-desc {
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

/* 右侧装饰图 */
.about-visual {
  display: flex;
  justify-content: center;
  align-items: center;
}

.about-visual-inner {
  width: 100%;
  max-width: 360px;
  aspect-ratio: 1;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-md);
  padding: var(--space-md);
  display: flex;
  align-items: center;
  justify-content: center;
}

.about-visual-img-wrap {
  width: 100%;
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: 0 8px 40px rgba(15,39,71,0.18), 0 2px 12px rgba(15,39,71,0.10);
  border: 1px solid var(--color-border);
  background: #0a1628;
}

.about-visual-img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: var(--radius-xl);
}

/* ── 服务与能力（深色背景卡片）─────────────────────────────── */
.services-section {
  padding-block: var(--space-2xl);
  background: var(--color-bg-dark);
  position: relative;
  overflow: hidden;
}

/* 背景装饰 */
.services-section::before {
  content: '';
  position: absolute;
  top: -200px;
  right: -200px;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(30,144,255,0.06) 0%, transparent 70%);
  pointer-events: none;
}

.services-section .section-eyebrow { color: var(--color-blue); }
.services-section .section-title   { color: var(--color-text-white); }
.services-section .section-subtitle { color: var(--color-text-white70); }

.services-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.service-card {
  display: flex;
  gap: var(--space-lg);
  align-items: flex-start;
  padding: var(--space-lg);
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius-lg);
  transition: background var(--transition), border-color var(--transition);
}
.service-card:hover {
  background: rgba(255,255,255,0.07);
  border-color: rgba(30,144,255,0.3);
}

.service-card-icon {
  flex-shrink: 0;
  width: 60px;
  height: 60px;
  background: rgba(30,144,255,0.12);
  color: var(--color-blue);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
}

.service-card-body { flex: 1; }

.service-eyebrow {
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  color: var(--color-blue);
  text-transform: uppercase;
  margin-bottom: 8px;
}

.service-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-text-white);
  margin-bottom: 10px;
}

.service-desc {
  font-size: 0.9375rem;
  color: var(--color-text-white70);
  line-height: 1.75;
  margin-bottom: var(--space-sm);
}

.service-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 6px 16px;
}

.service-list li {
  font-size: 0.875rem;
  color: rgba(255,255,255,0.5);
  padding-left: 14px;
  position: relative;
}
.service-list li::before {
  content: '—';
  position: absolute;
  left: 0;
  color: var(--color-blue);
  font-size: 0.75rem;
}

/* ── 核心优势（Why 三卡片）────────────────────────────────── */
.why-section {
  padding-block: var(--space-2xl);
  background: var(--color-bg);
}

.why-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
}

.why-card {
  padding: var(--space-lg);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  transition: box-shadow var(--transition), transform var(--transition);
}
.why-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

.why-card-top {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-md);
}

.why-icon {
  width: 48px;
  height: 48px;
  background: var(--color-blue-bg);
  color: var(--color-blue);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.why-tag {
  display: inline-block;
  padding: 4px 10px;
  background: var(--color-blue-bg);
  color: var(--color-blue);
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 600;
}

.why-title {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--color-navy);
  margin-bottom: 10px;
}

.why-desc {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  line-height: 1.75;
}

/* ── 挑战与解决方案 ───────────────────────────────────────── */
.problems-section {
  padding-block: var(--space-2xl);
  background: var(--color-bg-alt);
}

.problems-grid {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  margin-bottom: var(--space-xl);
}

.problem-row {
  display: grid;
  grid-template-columns: 1fr 48px 1fr;
  gap: var(--space-sm);
  align-items: center;
  padding: var(--space-md);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-xs);
  transition: box-shadow var(--transition);
}
.problem-row:hover { box-shadow: var(--shadow-md); }

.problem-col { padding: 4px 0; }

.problem-label {
  display: inline-block;
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 3px 8px;
  border-radius: var(--radius-full);
  margin-bottom: 6px;
}

.challenge-label {
  background: rgba(232,99,10,0.1);
  color: var(--color-orange);
}

.solution-label {
  background: var(--color-blue-bg);
  color: var(--color-blue);
}

.problem-text {
  font-size: 0.9375rem;
  color: var(--color-text);
  line-height: 1.6;
}

.problem-arrow {
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-blue);
  opacity: 0.6;
}

/* 引言 */
.brand-quote {
  text-align: center;
  padding: var(--space-xl) var(--space-md);
  border-top: 1px solid var(--color-border);
  margin-top: var(--space-lg);
}

.brand-quote p {
  font-size: clamp(1.125rem, 2.5vw, 1.5rem);
  font-style: italic;
  color: var(--color-navy);
  font-weight: 500;
  margin-bottom: 12px;
}

.brand-quote footer {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  font-style: normal;
}

/* ── CTA 号召区 ───────────────────────────────────────────── */
.cta-section {
  position: relative;
  padding-block: var(--space-2xl);
  overflow: hidden;
  text-align: center;
}

.cta-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.cta-bg-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.cta-bg-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    rgba(10, 22, 40, 0.92) 0%,
    rgba(13, 27, 46, 0.88) 100%
  );
}

.cta-content {
  position: relative;
  z-index: 1;
}

.cta-title {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  color: #fff;
  line-height: 1.2;
  margin-bottom: var(--space-lg);
}

.cta-highlight {
  color: var(--color-blue);
}

/* ── 表单区（居中布局）────────────────────────────────────── */
.form-section {
  padding-block: var(--space-2xl);
  background: var(--color-bg);
}

.form-center-wrap {
  max-width: 720px;
  margin-inline: auto;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-xl) var(--space-xl);
  box-shadow: var(--shadow-lg);
}

.contact-form { width: 100%; }

.form-row { margin-bottom: var(--space-md); }

.form-row-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
}

.form-group { display: flex; flex-direction: column; gap: 6px; }

.form-label {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text);
}

.required { color: #E53E3E; margin-left: 2px; }

.form-input {
  width: 100%;
  padding: 11px 14px;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: 0.9375rem;
  font-family: inherit;
  color: var(--color-text);
  background: var(--color-bg);
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
}
.form-input:focus {
  border-color: var(--color-blue);
  box-shadow: 0 0 0 3px rgba(30,144,255,0.12);
}
.form-input::placeholder { color: var(--color-text-light); }

.form-textarea {
  resize: vertical;
  min-height: 120px;
  line-height: 1.6;
}

.form-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  margin-top: var(--space-sm);
  flex-wrap: wrap;
}

.form-hint {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  flex: 1;
}

.hint-link {
  color: var(--color-blue);
  transition: color var(--transition);
}
.hint-link:hover { text-decoration: underline; }

.btn-submit {
  padding: 12px 28px;
  font-size: 0.9375rem;
  flex-shrink: 0;
}

/* 表单成功提示 */
.form-success-note {
  margin-top: var(--space-md);
  padding: 20px 24px;
  background-color: rgba(30,144,255,0.05);
  border: 1px solid rgba(30,144,255,0.18);
  border-radius: var(--radius-md);
  font-size: 1rem;
  color: var(--color-blue);
  font-weight: 500;
  display: none;
  align-items: center;
  gap: 10px;
  text-align: center;
  justify-content: center;
}

.form-success-note.is-visible {
  display: flex;
  animation: fadeInUp 0.4s ease both;
}

/* 表单校验错误状态 */
.form-input.input-error {
  border-color: #E53E3E;
  background-color: #FFF5F5;
  outline: none;
  box-shadow: 0 0 0 3px rgba(229,62,62,0.12);
}

/* ── 联系方式区 ───────────────────────────────────────────── */
.contact-info {
  padding-block: var(--space-xl);
  background: linear-gradient(135deg, var(--color-navy) 0%, var(--color-navy-mid) 100%);
}

.contact-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-lg);
  flex-wrap: wrap;
}

.contact-title {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-text-white);
  margin-bottom: 6px;
}

.contact-sub {
  font-size: 0.9375rem;
  color: var(--color-text-white70);
}

/* ── 页脚 ─────────────────────────────────────────────────── */
.site-footer {
  background: var(--color-bg-dark);
  color: var(--color-text-white);
}

.footer-inner {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: var(--space-xl);
  padding-block: var(--space-xl);
  align-items: start;
}

/* 左侧品牌区 */
.footer-brand {}

.footer-logo-wrap {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: var(--space-md);
}

.footer-logo-img {
  height: 32px;
  width: auto;
  filter: brightness(0) invert(1);
  opacity: 0.9;
}

.footer-cn {
  font-size: 0.8125rem;
  color: rgba(255,255,255,0.4);
  padding-left: 8px;
  border-left: 1px solid rgba(255,255,255,0.15);
}

.footer-company-info {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.footer-company-name {
  font-size: 0.9375rem;
  font-weight: 600;
  color: rgba(255,255,255,0.85);
  margin-bottom: 4px;
}

.footer-info-item {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  font-size: 0.875rem;
  color: rgba(255,255,255,0.5);
  line-height: 1.5;
}

.footer-info-item svg {
  flex-shrink: 0;
  margin-top: 2px;
  opacity: 0.6;
}

.footer-link {
  color: rgba(255,255,255,0.5);
  transition: color var(--transition);
}
.footer-link:hover { color: rgba(255,255,255,0.85); }

/* 中间导航 */
.footer-nav-col {}

.footer-col-title {
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.4);
  margin-bottom: var(--space-md);
}

.footer-nav-col nav {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-nav-link {
  font-size: 0.9rem;
  color: rgba(255,255,255,0.55);
  transition: color var(--transition);
}
.footer-nav-link:hover { color: rgba(255,255,255,0.9); }

/* 右侧二维码 */
.footer-qr-col {}

.footer-qr-wrap {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 10px;
}

.footer-qr-img {
  width: 110px;
  height: 110px;
  border-radius: var(--radius-md);
  border: 2px solid rgba(255,255,255,0.12);
  object-fit: cover;
}

.footer-qr-label {
  font-size: 0.8125rem;
  color: rgba(255,255,255,0.4);
}

/* 底部版权栏 */
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding-block: var(--space-md);
}

.footer-bottom-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  flex-wrap: wrap;
}

.footer-copy {
  font-size: 0.8125rem;
  color: rgba(255,255,255,0.35);
}

.footer-icp { font-size: 0.8125rem; }

.icp-link {
  color: rgba(255,255,255,0.35);
  transition: color var(--transition);
}
.icp-link:hover { color: rgba(255,255,255,0.7); }

/* ── 动画 ─────────────────────────────────────────────────── */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(14px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ── 响应式断点 ───────────────────────────────────────────── */

/* 平板 */
@media (max-width: 1024px) {
  .capability-cards {
    grid-template-columns: 1fr;
  }

  .cap-card-inner { flex-direction: row; align-items: flex-start; }

  .about-layout {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }

  .about-text-col { max-width: 640px; }

  .why-cards {
    grid-template-columns: 1fr 1fr;
  }

  .footer-inner {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-lg);
  }

  .footer-brand { grid-column: 1 / -1; }
}

/* 手机 */
@media (max-width: 768px) {
  :root {
    --space-xl: 48px;
    --space-2xl: 72px;
  }

  /* 导航 */
  .site-nav {
    display: none;
    position: absolute;
    top: 68px;
    left: 0;
    right: 0;
    background: rgba(255,255,255,0.98);
    backdrop-filter: blur(12px);
    flex-direction: column;
    align-items: stretch;
    padding: var(--space-sm) var(--space-md);
    border-bottom: 1px solid var(--color-border);
    box-shadow: var(--shadow-md);
    z-index: 99;
  }
  .site-nav.is-open { display: flex; }
  .nav-link { padding: 12px 0; border-bottom: 1px solid var(--color-border); }
  .nav-link:last-child { border-bottom: none; }
  .nav-cta { display: none; }
  .menu-toggle { display: flex; }
  .site-header { position: sticky; }

  /* Hero */
  .hero { min-height: 520px; padding-block: 80px 100px; }
  .hero-title { font-size: 2.25rem; }
  .hero-desc { font-size: 0.9375rem; }
  .hero-actions { flex-direction: column; align-items: stretch; }
  .hero-actions .btn { justify-content: center; }
  .hero-br { display: none; }

  /* 能力卡片 */
  .capability-cards { grid-template-columns: 1fr; }

  /* 服务卡片 */
  .service-card { flex-direction: column; gap: var(--space-md); }
  .service-list { grid-template-columns: 1fr; }

  /* Why 卡片 */
  .why-cards { grid-template-columns: 1fr; }

  /* 挑战解决方案 */
  .problem-row {
    grid-template-columns: 1fr;
    gap: var(--space-xs);
  }
  .problem-arrow { display: none; }

  /* 表单 */
  .form-center-wrap { padding: var(--space-lg) var(--space-md); }
  .form-row-2 { grid-template-columns: 1fr; }
  .form-footer { flex-direction: column; align-items: stretch; }
  .btn-submit { width: 100%; justify-content: center; }

  /* 联系方式 */
  .contact-inner { flex-direction: column; align-items: flex-start; }

  /* 页脚 */
  .footer-inner {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }
  .footer-brand { grid-column: auto; }
  .footer-bottom-inner { flex-direction: column; align-items: flex-start; }
}

/* 手机小屏 */
@media (max-width: 480px) {
  :root {
    --space-xl: 40px;
    --space-2xl: 60px;
  }

  .hero { min-height: 440px; }
  .hero-title { font-size: 1.875rem; }
  .logo-cn-tag { display: none; }
  .logo-badge-img { height: 26px; }
  .form-center-wrap { padding: var(--space-md) var(--space-sm); }
}

/* ── 无障碍：减少动效 ─────────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* ── 打印样式 ─────────────────────────────────────────────── */
@media print {
  .site-header, .menu-toggle, .hero-bg, .hero-bg-overlay,
  .hero-bottom-fade, .cta-bg, .btn { display: none !important; }
  body { font-size: 12pt; color: #000; }
  .hero { background: #fff; min-height: auto; padding-block: 20px; }
  .hero-title { color: #000; }
}