/* ============================================================
   苏州海融大网络工程科技有限公司 v2 - 全站样式
   设计语言：参照企业级官网风格（白底+蓝色点缀+卡片化+大留白）
   ============================================================ */

/* ---------- 设计令牌 ---------- */
:root {
  /* 色彩 */
  --color-primary: #0B3D91;
  --color-primary-dark: #082B6B;
  --color-primary-light: #1E5BC6;
  --color-accent: #06B6D4;
  --color-accent-soft: #E0F2FE;
  --color-cta: #F59E0B;
  --color-cta-dark: #D97706;
  --color-danger: #EF4444;
  --color-success: #10B981;
  --color-bg: #FFFFFF;
  --color-bg-soft: #F8FAFC;
  --color-bg-muted: #F1F5F9;
  --color-border: #E5E7EB;
  --color-border-light: #F1F5F9;
  --color-text: #1F2937;
  --color-text-muted: #4B5563;
  --color-text-light: #9CA3AF;

  /* 排版 */
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
               "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue",
               Helvetica, Arial, sans-serif;

  /* 间距 */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 20px;
  --space-6: 24px;
  --space-8: 32px;
  --space-10: 40px;
  --space-12: 48px;
  --space-16: 64px;
  --space-20: 80px;
  --space-24: 96px;

  /* 圆角 */
  --radius-sm: 4px;
  --radius-md: 6px;
  --radius-lg: 10px;
  --radius-xl: 16px;
  --radius-2xl: 24px;
  --radius-full: 9999px;

  /* 阴影 */
  --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.04);
  --shadow-md: 0 4px 16px rgba(15, 23, 42, 0.08);
  --shadow-lg: 0 12px 32px rgba(15, 23, 42, 0.10);
  --shadow-xl: 0 24px 64px rgba(15, 23, 42, 0.14);

  /* 容器 */
  --container-max: 1280px;
  --container-padding: var(--space-6);

  /* 过渡 */
  --transition: 200ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 400ms cubic-bezier(0.4, 0, 0.2, 1);
}

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

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

body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

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

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition);
}

a:hover { color: var(--color-primary-light); }

ul, ol { list-style: none; }

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

input, textarea, select {
  font-family: inherit;
  font-size: inherit;
}

/* ---------- 通用排版 ---------- */
h1, h2, h3, h4, h5, h6 {
  line-height: 1.25;
  font-weight: 700;
  color: var(--color-text);
}

h1 { font-size: clamp(2.25rem, 4.5vw, 3.5rem);  letter-spacing: -0.02em; }
h2 { font-size: clamp(1.875rem, 3.5vw, 2.5rem); letter-spacing: -0.01em; }
h3 { font-size: clamp(1.25rem, 2.5vw, 1.5rem); }
h4 { font-size: 1.125rem; }

p { color: var(--color-text-muted); line-height: 1.7; }

/* ---------- 容器 ---------- */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding-left: var(--container-padding);
  padding-right: var(--container-padding);
}

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: 10px var(--space-5);
  font-size: 0.9375rem;
  font-weight: 500;
  border-radius: var(--radius-md);
  transition: all var(--transition);
  white-space: nowrap;
  cursor: pointer;
  border: 1px solid transparent;
  line-height: 1.2;
}

.btn--primary {
  background-color: var(--color-primary);
  color: #fff;
}
.btn--primary:hover {
  background-color: var(--color-primary-light);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn--cta {
  background-color: var(--color-cta);
  color: #fff;
}
.btn--cta:hover {
  background-color: var(--color-cta-dark);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn--outline {
  background-color: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}
.btn--outline:hover {
  background-color: var(--color-primary);
  color: #fff;
}

.btn--outline-light {
  background-color: transparent;
  color: #fff;
  border-color: rgba(255, 255, 255, 0.6);
}
.btn--outline-light:hover {
  background-color: #fff;
  color: var(--color-primary);
}

.btn--ghost {
  background-color: transparent;
  color: var(--color-primary);
}
.btn--ghost:hover {
  background-color: var(--color-bg-muted);
  color: var(--color-primary);
}

.btn--lg {
  padding: 14px var(--space-8);
  font-size: 1rem;
}

.btn--sm {
  padding: 6px var(--space-3);
  font-size: 0.875rem;
}

.btn--block { width: 100%; }

/* ---------- 顶部公告条 ---------- */
.notice {
  background: linear-gradient(90deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
  color: #fff;
  font-size: 0.875rem;
}

.notice__inner {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  padding: 8px var(--container-padding);
  max-width: var(--container-max);
  margin: 0 auto;
}

.notice__tag {
  background-color: var(--color-cta);
  color: #fff;
  padding: 2px var(--space-2);
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  font-weight: 600;
  flex-shrink: 0;
}

.notice__text {
  flex-grow: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.notice__text a {
  color: #fff;
  text-decoration: underline;
  text-underline-offset: 2px;
}

.notice__close {
  width: 20px;
  height: 20px;
  display: grid;
  place-items: center;
  color: rgba(255, 255, 255, 0.8);
  border-radius: var(--radius-sm);
  flex-shrink: 0;
}
.notice__close:hover {
  color: #fff;
  background-color: rgba(255, 255, 255, 0.15);
}

.notice.is-hidden { display: none; }

/* ---------- 顶部导航 ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: #fff;
  border-bottom: 1px solid var(--color-border-light);
  transition: box-shadow var(--transition);
}

.site-header.is-scrolled {
  box-shadow: var(--shadow-sm);
}

.nav {
  display: flex;
  align-items: center;
  height: 72px;
  gap: var(--space-8);
}

.nav__brand {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  color: var(--color-text);
  flex-shrink: 0;
}

.nav__logo {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent) 100%);
  display: grid;
  place-items: center;
  color: #fff;
  font-weight: 800;
  font-size: 1.125rem;
  flex-shrink: 0;
}

.nav__brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}
.nav__brand-cn { font-size: 1.0625rem; font-weight: 700; }
.nav__brand-en { font-size: 0.6875rem; color: var(--color-text-light); letter-spacing: 0.06em; }

.nav__list {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  margin-left: auto;
  margin-right: auto;
}

.nav__list > li { display: flex; align-items: center; }

.nav__link {
  display: inline-flex;
  align-items: center;
  height: 40px;
  padding: 0 var(--space-4);
  color: var(--color-text);
  font-size: 0.9375rem;
  font-weight: 500;
  border-radius: var(--radius-md);
  transition: all var(--transition);
  white-space: nowrap;
  line-height: 1.2;
}

.nav__link:hover {
  color: var(--color-primary);
  background-color: var(--color-bg-muted);
}

.nav__link.is-active {
  color: var(--color-primary);
  background-color: var(--color-accent-soft);
}

.nav__search {
  display: flex;
  align-items: center;
  background-color: var(--color-bg-muted);
  border-radius: var(--radius-full);
  padding: 6px var(--space-3);
  gap: var(--space-2);
  width: 220px;
  transition: all var(--transition);
}

.nav__search:focus-within {
  background-color: #fff;
  box-shadow: 0 0 0 2px var(--color-accent-soft);
}

.nav__search svg { color: var(--color-text-light); width: 16px; height: 16px; flex-shrink: 0; }

.nav__search input {
  flex-grow: 1;
  border: none;
  background: none;
  outline: none;
  font-size: 0.875rem;
  color: var(--color-text);
}

.nav__cta {
  display: inline-flex;
  align-items: center;
  height: 40px;
  padding: 0 var(--space-5);
  font-size: 0.875rem;
  line-height: 1.2;
  flex-shrink: 0;
}

.nav__toggle {
  display: none;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  color: var(--color-text);
  align-items: center;
  justify-content: center;
}
.nav__toggle:hover { background-color: var(--color-bg-muted); }
.nav__toggle svg { width: 24px; height: 24px; }

@media (max-width: 1100px) {
  .nav__search, .nav__cta { display: none; }
  .nav__list { margin-left: auto; }

  .nav__toggle { display: flex; }

  .nav__list {
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    background-color: #fff;
    border-bottom: 1px solid var(--color-border);
    padding: var(--space-4);
    gap: var(--space-1);
    transform: translateY(-110%);
    transition: transform var(--transition);
    box-shadow: var(--shadow-md);
  }

  .nav__list.is-open { transform: translateY(0); }

  .nav__list > li { display: block; }

  .nav__link {
    height: auto;
    padding: var(--space-3) var(--space-4);
    font-size: 1rem;
  }
}

/* ---------- Hero 轮播 ---------- */
.hero {
  position: relative;
  background-color: var(--color-bg-soft);
  overflow: hidden;
}

.hero__slider {
  position: relative;
  height: 520px;
}

.hero__slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  visibility: hidden;
  transition: opacity 600ms ease, visibility 600ms ease;
  display: flex;
  align-items: center;
}

.hero__slide.is-active {
  opacity: 1;
  visibility: visible;
}

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

.hero__slide-content {
  position: relative;
  z-index: 1;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-padding);
  width: 100%;
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: var(--space-12);
  align-items: center;
}

.hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 4px var(--space-3);
  background-color: rgba(255, 255, 255, 0.15);
  color: #fff;
  border-radius: var(--radius-full);
  font-size: 0.8125rem;
  font-weight: 500;
  margin-bottom: var(--space-5);
  backdrop-filter: blur(8px);
}

.hero__title {
  font-size: clamp(1.875rem, 4vw, 2.75rem);
  color: #fff;
  line-height: 1.2;
  margin-bottom: var(--space-4);
  letter-spacing: -0.01em;
}

.hero__lead {
  font-size: 1.0625rem;
  color: rgba(255, 255, 255, 0.92);
  margin-bottom: var(--space-6);
  max-width: 540px;
  line-height: 1.6;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
}

.hero__visual {
  position: relative;
  aspect-ratio: 4 / 3;
  border-radius: var(--radius-xl);
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  padding: var(--space-6);
  display: grid;
  place-items: center;
  box-shadow: 0 24px 64px rgba(0, 0, 0, 0.2);
}

.hero__visual-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-3);
  width: 100%;
}

.hero__visual-card {
  background-color: rgba(255, 255, 255, 0.15);
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: var(--radius-md);
  padding: var(--space-3);
  color: #fff;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.hero__visual-card-icon {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.25);
  display: grid;
  place-items: center;
}
.hero__visual-card-icon svg { width: 18px; height: 18px; }

.hero__visual-card-title {
  font-size: 0.875rem;
  font-weight: 600;
}

.hero__visual-card-text {
  font-size: 0.75rem;
  opacity: 0.85;
  line-height: 1.4;
}

/* 轮播控制 */
.hero__dots {
  position: absolute;
  bottom: var(--space-6);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: var(--space-2);
  z-index: 2;
}

.hero__dot {
  width: 28px;
  height: 4px;
  background-color: rgba(255, 255, 255, 0.4);
  border-radius: var(--radius-full);
  transition: all var(--transition);
  cursor: pointer;
  border: none;
  padding: 0;
}

.hero__dot.is-active {
  background-color: #fff;
  width: 40px;
}

.hero__arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background-color: rgba(255, 255, 255, 0.2);
  color: #fff;
  display: grid;
  place-items: center;
  z-index: 2;
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 255, 255, 0.3);
  transition: all var(--transition);
}

.hero__arrow:hover {
  background-color: rgba(255, 255, 255, 0.35);
}

.hero__arrow--prev { left: var(--space-6); }
.hero__arrow--next { right: var(--space-6); }

@media (max-width: 960px) {
  .hero__slider { height: auto; min-height: 600px; }
  .hero__slide-content { grid-template-columns: 1fr; padding-top: var(--space-12); padding-bottom: var(--space-12); }
  .hero__visual { max-width: 100%; }
  .hero__arrow { display: none; }
}

/* Hero slide 配色（每张 slide 一套） */
.hero__slide--1 .hero__slide-bg {
  background:
    radial-gradient(800px 400px at 80% 20%, rgba(6, 182, 212, 0.4), transparent 60%),
    linear-gradient(135deg, #0B3D91 0%, #082B6B 100%);
}
.hero__slide--2 .hero__slide-bg {
  background:
    radial-gradient(800px 400px at 20% 80%, rgba(245, 158, 11, 0.3), transparent 60%),
    linear-gradient(135deg, #1E5BC6 0%, #0B3D91 100%);
}
.hero__slide--3 .hero__slide-bg {
  background:
    radial-gradient(800px 400px at 50% 50%, rgba(16, 185, 129, 0.25), transparent 60%),
    linear-gradient(135deg, #06B6D4 0%, #0B3D91 100%);
}

/* ---------- 数据条 ---------- */
.stats {
  background-color: #fff;
  border-bottom: 1px solid var(--color-border-light);
  padding: var(--space-10) 0;
}

.stats__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-8);
}

.stats__item {
  text-align: center;
  position: relative;
}

.stats__item + .stats__item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 1px;
  height: 40px;
  background-color: var(--color-border);
}

.stats__value {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--color-primary);
  line-height: 1.1;
  margin-bottom: var(--space-2);
  letter-spacing: -0.02em;
}

.stats__value sup {
  font-size: 1.25rem;
  color: var(--color-accent);
  font-weight: 600;
  margin-left: 2px;
  top: -1em;
}

.stats__label {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
}

@media (max-width: 720px) {
  .stats__grid { grid-template-columns: repeat(2, 1fr); gap: var(--space-6); }
  .stats__item + .stats__item::before { display: none; }
  .stats__value { font-size: 2rem; }
}

/* ---------- 区块通用 ---------- */
.section {
  padding: var(--space-20) 0;
}

.section--soft { background-color: var(--color-bg-soft); }
.section--dark {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  color: #fff;
}
.section--dark h2, .section--dark h3 { color: #fff; }
.section--dark p { color: rgba(255, 255, 255, 0.85); }

.section__head {
  text-align: center;
  max-width: 720px;
  margin: 0 auto var(--space-12);
}

.section__eyebrow {
  display: inline-block;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-primary);
  letter-spacing: 0.1em;
  margin-bottom: var(--space-3);
  text-transform: uppercase;
}

.section--dark .section__eyebrow { color: var(--color-accent); }

.section__title {
  margin-bottom: var(--space-4);
}

.section__lead {
  font-size: 1.0625rem;
  color: var(--color-text-muted);
  max-width: 640px;
  margin: 0 auto;
}

.section--dark .section__lead { color: rgba(255, 255, 255, 0.85); }

.section__head--row {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  text-align: left;
  max-width: none;
  margin-bottom: var(--space-10);
  gap: var(--space-6);
}

.section__head--row .section__lead { margin: 0; }

/* ---------- 产品卡片 ---------- */
.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: var(--space-6);
}

@media (max-width: 560px) { .product-grid { grid-template-columns: 1fr; } }

.product-card {
  position: relative;
  background-color: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  transition: all var(--transition);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.product-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-primary) 0%, var(--color-accent) 100%);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition);
}

.product-card:hover {
  border-color: var(--color-primary-light);
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.product-card:hover::before { transform: scaleX(1); }

.product-card__icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent) 100%);
  color: #fff;
  display: grid;
  place-items: center;
  margin-bottom: var(--space-5);
}

.product-card__icon svg { width: 28px; height: 28px; }

.product-card__title {
  font-size: 1.25rem;
  margin-bottom: var(--space-3);
}

.product-card__text {
  color: var(--color-text-muted);
  margin-bottom: var(--space-5);
  flex-grow: 1;
}

.product-card__list {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  margin-bottom: var(--space-6);
  font-size: 0.9375rem;
  color: var(--color-text-muted);
}

.product-card__list li {
  display: flex;
  align-items: flex-start;
  gap: var(--space-2);
}

.product-card__list li::before {
  content: "";
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background-color: var(--color-accent);
  margin-top: 9px;
  flex-shrink: 0;
}

.product-card__link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  color: var(--color-primary);
  font-weight: 600;
  font-size: 0.9375rem;
  margin-top: auto;
}

.product-card__link::after {
  content: "→";
  transition: transform var(--transition);
}

.product-card__link:hover::after { transform: translateX(4px); }

/* ---------- 解决方案 tab ---------- */
.solution {
  background-color: var(--color-bg-soft);
}

.solution__tabs {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-bottom: var(--space-10);
  background-color: #fff;
  padding: var(--space-2);
  border-radius: var(--radius-full);
  max-width: fit-content;
  margin-left: auto;
  margin-right: auto;
  border: 1px solid var(--color-border);
}

.solution__tab {
  display: inline-flex;
  align-items: center;
  height: 40px;
  padding: 0 var(--space-5);
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--color-text-muted);
  border-radius: var(--radius-full);
  white-space: nowrap;
  transition: all var(--transition);
}

.solution__tab:hover { color: var(--color-primary); }

.solution__tab.is-active {
  background-color: var(--color-primary);
  color: #fff;
}

.solution__panel {
  display: none;
  background-color: #fff;
  border-radius: var(--radius-2xl);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--color-border-light);
}

.solution__panel.is-active { display: block; }

.solution__panel-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  min-height: 380px;
}

.solution__panel-visual {
  position: relative;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent) 100%);
  padding: var(--space-10);
  color: #fff;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  overflow: hidden;
}

.solution__panel-visual::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(400px 200px at 80% 20%, rgba(255, 255, 255, 0.15), transparent 60%);
  pointer-events: none;
}

.solution__visual-tag {
  display: inline-flex;
  align-items: center;
  align-self: flex-start;
  padding: 4px var(--space-3);
  background-color: rgba(255, 255, 255, 0.2);
  color: #fff;
  border-radius: var(--radius-full);
  font-size: 0.8125rem;
  font-weight: 500;
  backdrop-filter: blur(8px);
  position: relative;
  z-index: 1;
}

.solution__visual-title {
  font-size: 1.875rem;
  color: #fff;
  line-height: 1.25;
  position: relative;
  z-index: 1;
}

.solution__visual-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  position: relative;
  z-index: 1;
}

.solution__visual-list li {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: 0.9375rem;
  color: rgba(255, 255, 255, 0.95);
}

.solution__visual-list li::before {
  content: "✓";
  width: 20px;
  height: 20px;
  background-color: rgba(255, 255, 255, 0.25);
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-size: 0.75rem;
  flex-shrink: 0;
}

.solution__panel-body {
  padding: var(--space-10);
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.solution__panel-eyebrow {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--color-primary);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--space-3);
}

.solution__panel-title {
  font-size: 1.75rem;
  margin-bottom: var(--space-4);
}

.solution__panel-text {
  color: var(--color-text-muted);
  margin-bottom: var(--space-6);
  line-height: 1.7;
}

.solution__panel-features {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
  margin-bottom: var(--space-6);
}

.solution__feature {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
}

.solution__feature-icon {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  background-color: var(--color-accent-soft);
  color: var(--color-primary);
  display: grid;
  place-items: center;
  flex-shrink: 0;
}

.solution__feature-icon svg { width: 18px; height: 18px; }

.solution__feature-text {
  font-size: 0.875rem;
  color: var(--color-text);
  font-weight: 500;
  line-height: 1.4;
}

.solution__panel-actions {
  display: flex;
  gap: var(--space-3);
  flex-wrap: wrap;
}

@media (max-width: 720px) {
  .solution__panel-inner { grid-template-columns: 1fr; min-height: auto; }
  .solution__panel-visual { padding: var(--space-6); }
  .solution__panel-body { padding: var(--space-6); }
  .solution__visual-title { font-size: 1.5rem; }
  .solution__panel-title { font-size: 1.375rem; }
  .solution__panel-features { grid-template-columns: 1fr; }
}

/* ---------- 服务支持入口 ---------- */
.support-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
}

@media (max-width: 960px) { .support-grid { grid-template-columns: 1fr; } }

.support-card {
  background-color: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  text-align: center;
  transition: all var(--transition);
  display: flex;
  flex-direction: column;
  align-items: center;
}

.support-card:hover {
  border-color: var(--color-accent);
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.support-card__icon {
  width: 72px;
  height: 72px;
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-primary) 100%);
  color: #fff;
  display: grid;
  place-items: center;
  margin-bottom: var(--space-5);
}

.support-card__icon svg { width: 32px; height: 32px; }

.support-card__title {
  font-size: 1.25rem;
  margin-bottom: var(--space-3);
}

.support-card__text {
  color: var(--color-text-muted);
  margin-bottom: var(--space-5);
  flex-grow: 1;
}

.support-card__link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  color: var(--color-primary);
  font-weight: 600;
  font-size: 0.9375rem;
  margin-top: auto;
}

.support-card__link::after {
  content: "→";
  transition: transform var(--transition);
}

.support-card__link:hover::after { transform: translateX(4px); }

/* ---------- 新闻 ---------- */
.news-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
}

@media (max-width: 960px) { .news-grid { grid-template-columns: 1fr; } }

.news-card {
  background-color: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition);
  display: flex;
  flex-direction: column;
}

.news-card:hover {
  border-color: var(--color-primary-light);
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.news-card__thumb {
  aspect-ratio: 16 / 9;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent) 100%);
  position: relative;
  display: grid;
  place-items: center;
  color: rgba(255, 255, 255, 0.6);
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  overflow: hidden;
}

.news-card__thumb::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(300px 150px at 30% 70%, rgba(255, 255, 255, 0.15), transparent 60%),
    radial-gradient(200px 100px at 80% 30%, rgba(255, 255, 255, 0.1), transparent 60%);
}

.news-card__tag {
  position: absolute;
  top: var(--space-3);
  left: var(--space-3);
  padding: 2px var(--space-2);
  background-color: rgba(0, 0, 0, 0.6);
  color: #fff;
  font-size: 0.75rem;
  font-weight: 500;
  border-radius: var(--radius-sm);
  backdrop-filter: blur(4px);
  z-index: 1;
}

.news-card__body {
  padding: var(--space-5) var(--space-6);
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.news-card__date {
  font-size: 0.8125rem;
  color: var(--color-text-light);
  margin-bottom: var(--space-2);
}

.news-card__title {
  font-size: 1.0625rem;
  margin-bottom: var(--space-2);
  line-height: 1.5;
}

.news-card__title a { color: var(--color-text); }
.news-card__title a:hover { color: var(--color-primary); }

.news-card__excerpt {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  line-height: 1.6;
  flex-grow: 1;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* ---------- 售前咨询 CTA ---------- */
.cta {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  border-radius: var(--radius-2xl);
  padding: var(--space-12);
  color: #fff;
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: var(--space-10);
  align-items: center;
  position: relative;
  overflow: hidden;
}

.cta::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(600px 300px at 90% 0%, rgba(6, 182, 212, 0.25), transparent 60%),
    radial-gradient(400px 200px at 0% 100%, rgba(245, 158, 11, 0.15), transparent 60%);
  pointer-events: none;
}

.cta__content {
  position: relative;
  z-index: 1;
}

.cta__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 4px var(--space-3);
  background-color: rgba(255, 255, 255, 0.15);
  color: #fff;
  border-radius: var(--radius-full);
  font-size: 0.8125rem;
  font-weight: 500;
  margin-bottom: var(--space-4);
  backdrop-filter: blur(8px);
}

.cta__title {
  font-size: clamp(1.5rem, 3vw, 2rem);
  color: #fff;
  margin-bottom: var(--space-3);
  line-height: 1.25;
}

.cta__text {
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: var(--space-6);
  font-size: 1.0625rem;
}

.cta__features {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  margin-bottom: var(--space-6);
}

.cta__feature {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  color: rgba(255, 255, 255, 0.92);
  font-size: 0.9375rem;
}

.cta__feature::before {
  content: "✓";
  width: 20px;
  height: 20px;
  background-color: rgba(255, 255, 255, 0.2);
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-size: 0.75rem;
  flex-shrink: 0;
}

.cta__actions {
  display: flex;
  gap: var(--space-3);
  flex-wrap: wrap;
}

.cta__form {
  position: relative;
  z-index: 1;
  background-color: #fff;
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  color: var(--color-text);
  box-shadow: 0 24px 64px rgba(0, 0, 0, 0.2);
}

.cta__form-title {
  font-size: 1.25rem;
  margin-bottom: var(--space-2);
}

.cta__form-text {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  margin-bottom: var(--space-5);
}

.cta__form .form__field { margin-bottom: var(--space-4); }

.cta__form .form__input,
.cta__form .form__select,
.cta__form .form__textarea {
  background-color: var(--color-bg-soft);
  border-color: transparent;
}

.cta__form .form__input:focus,
.cta__form .form__select:focus,
.cta__form .form__textarea:focus {
  background-color: #fff;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(11, 61, 145, 0.1);
}

@media (max-width: 960px) {
  .cta { grid-template-columns: 1fr; padding: var(--space-8); }
  .cta__form { padding: var(--space-6); }
}

/* ---------- 底部多列导航 ---------- */
.site-footer {
  background-color: #0A1733;
  color: rgba(255, 255, 255, 0.7);
  padding: var(--space-16) 0 var(--space-6);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr repeat(4, 1fr) 1fr;
  gap: var(--space-8);
  margin-bottom: var(--space-10);
}

@media (max-width: 1100px) {
  .footer-grid { grid-template-columns: 1fr 1fr 1fr; }
}
@media (max-width: 720px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

.footer__brand-info {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.footer__brand {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  color: #fff;
  font-size: 1.125rem;
  font-weight: 700;
}

.footer__brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}
.footer__brand-cn { font-size: 1.0625rem; font-weight: 700; }
.footer__brand-en { font-size: 0.6875rem; color: rgba(255, 255, 255, 0.5); letter-spacing: 0.06em; }

.footer__about {
  font-size: 0.9375rem;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.7);
}

.footer__contact {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.7);
}

.footer__contact strong { color: rgba(255, 255, 255, 0.85); margin-right: 4px; }

.footer__title {
  color: #fff;
  font-size: 0.9375rem;
  font-weight: 600;
  margin-bottom: var(--space-4);
}

.footer__list { display: flex; flex-direction: column; gap: var(--space-2); }

.footer__list a {
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.875rem;
}

.footer__list a:hover { color: var(--color-accent); }

.footer__qr {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
}

.footer__qr-img {
  width: 100px;
  height: 100px;
  background-color: #fff;
  border-radius: var(--radius-md);
  display: grid;
  place-items: center;
  color: var(--color-text-light);
  font-size: 0.75rem;
}

.footer__qr-text {
  font-size: 0.75rem;
  color: rgba(255, 255, 255, 0.5);
}

.footer__info-links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-5);
  padding: var(--space-5) 0;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 0.875rem;
}

.footer__info-links a { color: rgba(255, 255, 255, 0.7); }
.footer__info-links a:hover { color: var(--color-accent); }

.footer__bottom {
  padding-top: var(--space-5);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: var(--space-3);
  font-size: 0.8125rem;
  color: rgba(255, 255, 255, 0.5);
}

.footer__bottom a { color: inherit; }
.footer__bottom a:hover { color: var(--color-accent); }

/* ---------- 右侧浮动工具栏 ---------- */
.floater {
  position: fixed;
  right: var(--space-5);
  bottom: var(--space-5);
  z-index: 50;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.floater__item {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background-color: #fff;
  color: var(--color-text);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--color-border-light);
  transition: all var(--transition);
  position: relative;
  font-size: 0.6875rem;
  line-height: 1.1;
  cursor: pointer;
}

.floater__item:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.floater__item svg {
  width: 20px;
  height: 20px;
  margin-bottom: 2px;
}

.floater__item--primary {
  background-color: var(--color-cta);
  color: #fff;
  border-color: transparent;
}

.floater__item--primary:hover {
  background-color: var(--color-cta-dark);
  color: #fff;
}

.floater__item--accent {
  background-color: var(--color-primary);
  color: #fff;
  border-color: transparent;
}

.floater__item--accent:hover {
  background-color: var(--color-primary-light);
  color: #fff;
}

/* 返回顶部 - 默认隐藏 */
.floater__item--top {
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
}

.floater__item--top.is-visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

@media (max-width: 720px) {
  .floater { right: var(--space-3); bottom: var(--space-3); }
  .floater__item { width: 44px; height: 44px; }
  .floater__item svg { width: 18px; height: 18px; }
}

/* ---------- 页面标题区（内页用）---------- */
.page-header {
  position: relative;
  background:
    radial-gradient(1000px 400px at 80% 0%, rgba(6, 182, 212, 0.15), transparent 60%),
    linear-gradient(180deg, var(--color-bg-soft) 0%, var(--color-bg) 100%);
  padding: calc(72px + var(--space-16)) 0 var(--space-12);
  border-bottom: 1px solid var(--color-border-light);
  overflow: hidden;
}

.page-header::before {
  content: "";
  position: absolute;
  top: 0;
  right: -10%;
  width: 50%;
  height: 100%;
  background:
    radial-gradient(closest-side, rgba(11, 61, 145, 0.04), transparent);
  pointer-events: none;
}

.page-header__inner {
  position: relative;
  z-index: 1;
  max-width: 760px;
}

.page-header__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 4px var(--space-3);
  background-color: var(--color-accent-soft);
  color: var(--color-primary);
  border-radius: var(--radius-full);
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  margin-bottom: var(--space-4);
}

.page-header__title {
  font-size: clamp(2rem, 4.5vw, 3rem);
  letter-spacing: -0.02em;
  line-height: 1.15;
  margin-bottom: var(--space-4);
}

.page-header__lead {
  font-size: 1.125rem;
  color: var(--color-text-muted);
  line-height: 1.7;
  max-width: 640px;
}

@media (max-width: 720px) {
  .page-header { padding: calc(72px + var(--space-10)) 0 var(--space-8); }
}

/* ---------- 面包屑 ---------- */
.breadcrumb {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  margin-bottom: var(--space-4);
}

.breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  align-items: center;
}

.breadcrumb li { display: flex; align-items: center; gap: var(--space-2); }

.breadcrumb li + li::before {
  content: "/";
  color: var(--color-text-light);
}

.breadcrumb a { color: var(--color-text-muted); }
.breadcrumb a:hover { color: var(--color-primary); }
.breadcrumb [aria-current="page"] { color: var(--color-text); font-weight: 500; }

/* ---------- 长内容（产品/方案/关于页正文）---------- */
.prose {
  max-width: 880px;
  margin: 0 auto;
  font-size: 1.0625rem;
  line-height: 1.8;
  color: var(--color-text);
}

.prose h2 { margin-top: var(--space-12); margin-bottom: var(--space-4); }
.prose h3 { margin-top: var(--space-8); margin-bottom: var(--space-3); }
.prose p { color: var(--color-text); margin-bottom: var(--space-5); }
.prose ul, .prose ol {
  margin: var(--space-5) 0;
  padding-left: var(--space-6);
  list-style: revert;
  color: var(--color-text);
}
.prose li { margin-bottom: var(--space-2); }
.prose blockquote {
  margin: var(--space-8) 0;
  padding: var(--space-4) var(--space-6);
  border-left: 4px solid var(--color-primary);
  background-color: var(--color-bg-soft);
  color: var(--color-text);
  font-style: italic;
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
}
.prose strong { color: var(--color-text); }
.prose code {
  font-family: var(--font-mono, monospace);
  background-color: var(--color-bg-muted);
  padding: 2px 6px;
  border-radius: var(--radius-sm);
  font-size: 0.9em;
}

/* ---------- 规格参数表 ---------- */
.spec-table {
  width: 100%;
  border-collapse: collapse;
  background-color: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin: var(--space-6) 0;
  font-size: 0.9375rem;
}

.spec-table th,
.spec-table td {
  text-align: left;
  padding: var(--space-4) var(--space-5);
  border-bottom: 1px solid var(--color-border-light);
}

.spec-table th {
  background-color: var(--color-bg-soft);
  color: var(--color-text-muted);
  font-weight: 600;
  font-size: 0.875rem;
  width: 30%;
}

.spec-table tr:last-child th,
.spec-table tr:last-child td { border-bottom: none; }

/* ---------- 特性列表（带 icon）---------- */
.feature-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-4);
  margin: var(--space-6) 0;
}

@media (max-width: 720px) { .feature-list { grid-template-columns: 1fr; } }

.feature-list__item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  padding: var(--space-4);
  background-color: var(--color-bg-soft);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border-light);
}

.feature-list__icon {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent) 100%);
  color: #fff;
  display: grid;
  place-items: center;
  flex-shrink: 0;
}

.feature-list__icon svg { width: 18px; height: 18px; }

.feature-list__title {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 2px;
}

.feature-list__text {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  line-height: 1.5;
}

/* ---------- 时间线（关于页用）---------- */
.timeline {
  position: relative;
  display: grid;
  gap: var(--space-8);
  padding-left: var(--space-8);
  border-left: 2px solid var(--color-border);
  max-width: 720px;
  margin: 0 auto;
}

.timeline__item { position: relative; }

.timeline__item::before {
  content: "";
  position: absolute;
  left: calc(-1 * var(--space-8) - 6px);
  top: 8px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background-color: #fff;
  border: 3px solid var(--color-primary);
  box-shadow: 0 0 0 4px #fff;
}

.timeline__year {
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: var(--space-2);
}

.timeline__title { font-size: 1.125rem; margin-bottom: var(--space-2); }
.timeline__text { color: var(--color-text-muted); font-size: 0.9375rem; line-height: 1.6; }

/* ---------- FAQ ---------- */
.faq {
  max-width: 800px;
  margin: 0 auto;
  display: grid;
  gap: var(--space-3);
}

.faq__item {
  background-color: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: all var(--transition);
}

.faq__item.is-open {
  border-color: var(--color-primary-light);
  box-shadow: var(--shadow-sm);
}

.faq__q {
  width: 100%;
  text-align: left;
  padding: var(--space-5) var(--space-6);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-4);
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-text);
  cursor: pointer;
  background: none;
  border: none;
}

.faq__q::after {
  content: "+";
  font-size: 1.5rem;
  color: var(--color-primary);
  font-weight: 300;
  transition: transform var(--transition);
  flex-shrink: 0;
}

.faq__item.is-open .faq__q::after {
  content: "−";
}

.faq__a {
  max-height: 0;
  overflow: hidden;
  transition: max-height 300ms ease;
  color: var(--color-text-muted);
  font-size: 0.9375rem;
  line-height: 1.7;
}

.faq__a-inner {
  padding: 0 var(--space-6) var(--space-5);
}

.faq__item.is-open .faq__a {
  max-height: 600px;
}

/* ---------- 步骤条（流程）---------- */
.steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-4);
  counter-reset: step;
}

@media (max-width: 960px) { .steps { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .steps { grid-template-columns: 1fr; } }

.step {
  position: relative;
  background-color: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  counter-increment: step;
  transition: all var(--transition);
}

.step:hover {
  border-color: var(--color-primary-light);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.step::before {
  content: counter(step, decimal-leading-zero);
  position: absolute;
  top: var(--space-4);
  right: var(--space-5);
  font-size: 2.25rem;
  font-weight: 800;
  color: var(--color-accent-soft);
  line-height: 1;
}

.step__title {
  font-size: 1.0625rem;
  margin-bottom: var(--space-2);
}

.step__text {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  line-height: 1.5;
}

/* ---------- 列表项（新闻/案例/资质）---------- */
.list {
  display: grid;
  gap: var(--space-4);
}

.list__item {
  background-color: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-5) var(--space-6);
  display: grid;
  grid-template-columns: 200px 1fr auto;
  gap: var(--space-6);
  align-items: center;
  transition: all var(--transition);
}

.list__item:hover {
  border-color: var(--color-primary-light);
  transform: translateX(4px);
  box-shadow: var(--shadow-sm);
}

.list__thumb {
  aspect-ratio: 4 / 3;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent) 100%);
  display: grid;
  place-items: center;
  color: #fff;
  font-size: 1.75rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  position: relative;
  overflow: hidden;
}

.list__thumb::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(150px 80px at 70% 30%, rgba(255, 255, 255, 0.2), transparent 60%);
}

.list__meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  font-size: 0.8125rem;
  color: var(--color-text-light);
  margin-bottom: var(--space-2);
  align-items: center;
}

.list__tag {
  display: inline-flex;
  align-items: center;
  padding: 2px var(--space-2);
  background-color: var(--color-accent-soft);
  color: var(--color-primary);
  border-radius: var(--radius-sm);
  font-weight: 600;
}

.list__title {
  font-size: 1.125rem;
  margin-bottom: var(--space-2);
}

.list__title a { color: var(--color-text); }
.list__title a:hover { color: var(--color-primary); }

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

@media (max-width: 720px) {
  .list__item { grid-template-columns: 1fr; padding: var(--space-5); }
  .list__thumb { aspect-ratio: 16 / 9; }
}

/* ---------- 过滤器（新闻/案例）---------- */
.filter {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-bottom: var(--space-8);
  padding-bottom: var(--space-4);
  border-bottom: 1px solid var(--color-border-light);
}

.filter__btn {
  padding: 6px var(--space-4);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text-muted);
  background-color: var(--color-bg-soft);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all var(--transition);
}

.filter__btn:hover {
  color: var(--color-primary);
  border-color: var(--color-primary-light);
}

.filter__btn.is-active {
  background-color: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
}

/* ---------- 资质徽章 ---------- */
.badges {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-4);
}

@media (max-width: 720px) { .badges { grid-template-columns: repeat(2, 1fr); } }

.badge {
  padding: var(--space-5);
  background-color: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  text-align: center;
  transition: all var(--transition);
}

.badge:hover {
  border-color: var(--color-primary-light);
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}

.badge__icon {
  width: 44px;
  height: 44px;
  margin: 0 auto var(--space-3);
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent) 100%);
  color: #fff;
  display: grid;
  place-items: center;
}

.badge__icon svg { width: 22px; height: 22px; }

.badge__text {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-text);
  line-height: 1.4;
}

/* ---------- 二级 CTA 块（短版）---------- */
.cta-block {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  border-radius: var(--radius-2xl);
  padding: var(--space-10) var(--space-10);
  color: #fff;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-8);
  position: relative;
  overflow: hidden;
}

.cta-block::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(600px 300px at 100% 0%, rgba(6, 182, 212, 0.25), transparent 60%);
  pointer-events: none;
}

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

.cta-block__title {
  color: #fff;
  font-size: 1.5rem;
  margin-bottom: var(--space-2);
}

.cta-block__text { color: rgba(255, 255, 255, 0.85); font-size: 0.9375rem; }

.cta-block__actions { position: relative; z-index: 1; display: flex; gap: var(--space-3); flex-shrink: 0; }

@media (max-width: 720px) {
  .cta-block { flex-direction: column; align-items: flex-start; padding: var(--space-8); }
  .cta-block__actions { width: 100%; }
  .cta-block__actions .btn { flex: 1; }
}

/* ---------- 内容渐入动画（滚动触发）----------
   关键：默认状态元素可见（无 JS 也能正常显示）。
   仅当 <html> 加上 .js class 时才进入隐藏+渐入状态。 */
.reveal {
  /* 默认显示，无 JS 时元素直接可见 */
}

html.js .reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 700ms cubic-bezier(0.16, 1, 0.3, 1),
              transform 700ms cubic-bezier(0.16, 1, 0.3, 1);
  will-change: opacity, transform;
}

html.js .reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

html.js .reveal--left { transform: translateX(-32px); }
html.js .reveal--left.is-visible { transform: translateX(0); }

html.js .reveal--right { transform: translateX(32px); }
html.js .reveal--right.is-visible { transform: translateX(0); }

html.js .reveal--scale { transform: scale(0.96); }
html.js .reveal--scale.is-visible { transform: scale(1); }

html.js .reveal--delay-1 { transition-delay: 80ms; }
html.js .reveal--delay-2 { transition-delay: 160ms; }
html.js .reveal--delay-3 { transition-delay: 240ms; }
html.js .reveal--delay-4 { transition-delay: 320ms; }
html.js .reveal--delay-5 { transition-delay: 400ms; }

/* stagger：父容器加 .stagger，子元素自动错开 */
.stagger > * {
  /* 默认显示 */
}

html.js .stagger > * {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 500ms cubic-bezier(0.16, 1, 0.3, 1),
              transform 500ms cubic-bezier(0.16, 1, 0.3, 1);
  will-change: opacity, transform;
}

html.js .stagger.is-visible > * {
  opacity: 1;
  transform: translateY(0);
}

html.js .stagger.is-visible > *:nth-child(1)  { transition-delay:   0ms; }
html.js .stagger.is-visible > *:nth-child(2)  { transition-delay:  60ms; }
html.js .stagger.is-visible > *:nth-child(3)  { transition-delay: 120ms; }
html.js .stagger.is-visible > *:nth-child(4)  { transition-delay: 180ms; }
html.js .stagger.is-visible > *:nth-child(5)  { transition-delay: 240ms; }
html.js .stagger.is-visible > *:nth-child(6)  { transition-delay: 300ms; }
html.js .stagger.is-visible > *:nth-child(7)  { transition-delay: 360ms; }
html.js .stagger.is-visible > *:nth-child(8)  { transition-delay: 420ms; }
html.js .stagger.is-visible > *:nth-child(9)  { transition-delay: 480ms; }
html.js .stagger.is-visible > *:nth-child(10) { transition-delay: 540ms; }

/* ---------- 锐捷风格下拉面板 ---------- */
.nav__item {
  position: relative;
  display: flex;
  align-items: center;
}

.nav__dropdown {
  position: absolute;
  top: calc(100% + 6px);
  left: 50%;
  background-color: #fff;
  border-radius: var(--radius-lg);
  box-shadow: 0 16px 48px rgba(15, 23, 42, 0.14), 0 0 0 1px rgba(15, 23, 42, 0.04);
  padding: var(--space-6);
  min-width: 540px;
  opacity: 0;
  visibility: hidden;
  transform: translate(-50%, -8px);
  transition: opacity 220ms ease, transform 220ms ease, visibility 220ms;
  z-index: 99;
  pointer-events: none;
}

.nav__dropdown::before {
  content: "";
  position: absolute;
  top: -6px;
  left: 50%;
  transform: translateX(-50%) rotate(45deg);
  width: 12px;
  height: 12px;
  background-color: #fff;
  border-top: 1px solid rgba(15, 23, 42, 0.04);
  border-left: 1px solid rgba(15, 23, 42, 0.04);
}

.nav__item:hover .nav__dropdown,
.nav__item:focus-within .nav__dropdown {
  opacity: 1;
  visibility: visible;
  transform: translate(-50%, 0);
  pointer-events: auto;
}

/* 加宽面板（适合内容多的菜单） */
.nav__dropdown--wide { min-width: 640px; }

.nav__dropdown-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: var(--space-6);
}

.nav__dropdown-grid--cols3 { grid-template-columns: repeat(3, 1fr); }

.nav__dropdown-col h4 {
  font-size: 0.6875rem;
  font-weight: 700;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--space-3);
}

.nav__dropdown-list {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.nav__dropdown-list a {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: 8px var(--space-3);
  font-size: 0.9375rem;
  color: var(--color-text);
  border-radius: var(--radius-sm);
  transition: all 150ms;
  white-space: nowrap;
}

.nav__dropdown-list a::before {
  content: "";
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background-color: var(--color-accent);
  opacity: 0;
  transition: opacity 150ms;
  flex-shrink: 0;
}

.nav__dropdown-list a:hover {
  background-color: var(--color-bg-muted);
  color: var(--color-primary);
}

.nav__dropdown-list a:hover::before {
  opacity: 1;
}

.nav__dropdown-feature {
  background: linear-gradient(135deg, var(--color-bg-soft) 0%, var(--color-accent-soft) 100%);
  border-radius: var(--radius-md);
  padding: var(--space-5);
  border: 1px solid var(--color-border-light);
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.nav__dropdown-feature .nav__dropdown-tag {
  display: inline-block;
  align-self: flex-start;
  padding: 2px var(--space-2);
  background-color: var(--color-cta);
  color: #fff;
  border-radius: var(--radius-sm);
  font-size: 0.6875rem;
  font-weight: 600;
  margin-bottom: var(--space-2);
}

.nav__dropdown-feature h5 {
  font-size: 1.0625rem;
  margin-bottom: var(--space-2);
  line-height: 1.3;
}

.nav__dropdown-feature p {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  margin-bottom: var(--space-3);
  line-height: 1.5;
}

.nav__dropdown-feature .nav__dropdown-link {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-primary);
}

.nav__dropdown-feature .nav__dropdown-link::after {
  content: " →";
}

/* 联系信息型面板（用于"联系我们"） */
.nav__dropdown-contact {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.nav__dropdown-contact-item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3);
  background-color: var(--color-bg-soft);
  border-radius: var(--radius-md);
  transition: background 150ms;
}

.nav__dropdown-contact-item:hover {
  background-color: var(--color-accent-soft);
}

.nav__dropdown-contact-icon {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent) 100%);
  color: #fff;
  display: grid;
  place-items: center;
  flex-shrink: 0;
}

.nav__dropdown-contact-icon svg { width: 18px; height: 18px; }

.nav__dropdown-contact-text {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  line-height: 1.3;
}

.nav__dropdown-contact-text strong {
  display: block;
  color: var(--color-text);
  font-weight: 600;
  font-size: 0.9375rem;
}

/* 移动端隐藏下拉 */
@media (max-width: 1100px) {
  .nav__dropdown,
  .nav__dropdown::before { display: none; }
}

/* ---------- 减少动画偏好 ---------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* ---------- 打印 ---------- */
@media print {
  .site-header, .site-footer, .floater, .notice, .hero__dots, .hero__arrow { display: none; }
  body { color: #000; background: #fff; }
  a { color: #000; text-decoration: underline; }
}