/* ============================================================
   方一科技 · 官网样式
   品牌：深蓝 #0020b0 + 红 #d00000（源自企业 logo）
   布局参考：DJI（极简、科技、大图、栅格卡片）
   ============================================================ */

:root {
  /* 品牌色 */
  --brand-blue: #0020b0;
  --brand-blue-2: #0a2fd0;
  --brand-blue-dark: #001a8c;
  --brand-blue-deep: #001266;
  --brand-blue-ink: #0a1140;
  --brand-red: #d00000;
  --brand-red-dark: #b00000;

  /* 中性色 */
  --ink: #10182b;
  --ink-2: #2a3450;
  --muted: #5b6478;
  --muted-2: #8a93a8;
  --line: #e6eaf2;
  --line-soft: #eef1f7;
  --bg: #ffffff;
  --bg-soft: #f6f8fc;
  --bg-blue: #eef1ff;
  --bg-navy: #050d2e;
  --bg-navy-2: #0a1140;

  /* 字体 */
  --font-sans: "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei",
    "Noto Sans SC", "Source Han Sans SC", -apple-system, BlinkMacSystemFont,
    "Segoe UI", Roboto, Helvetica, Arial, sans-serif;

  /* 尺寸 */
  --container: 1200px;
  --radius: 16px;
  --radius-lg: 22px;
  --radius-sm: 10px;
  --shadow-sm: 0 2px 10px rgba(10, 17, 64, 0.05);
  --shadow: 0 12px 40px rgba(10, 17, 64, 0.09);
  --shadow-lg: 0 24px 70px rgba(10, 17, 64, 0.16);

  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
}

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

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

body {
  font-family: var(--font-sans);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.7;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

ul,
ol {
  list-style: none;
}

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

::selection {
  background: rgba(0, 32, 176, 0.16);
}

/* ---------- 布局容器 ---------- */
.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 28px;
}

.section {
  padding: 96px 0;
}

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

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

/* ---------- 标题 ---------- */
.section-head {
  max-width: 720px;
  margin: 0 auto 56px;
  text-align: center;
}

.section-head--left {
  margin-left: 0;
  text-align: left;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--brand-blue);
  margin-bottom: 14px;
}

.eyebrow::before {
  content: "";
  width: 22px;
  height: 3px;
  border-radius: 2px;
  background: var(--brand-red);
}

.section-title {
  font-size: clamp(28px, 4vw, 44px);
  font-weight: 800;
  letter-spacing: -0.01em;
  line-height: 1.2;
  color: var(--ink);
}

.section-sub {
  margin-top: 18px;
  font-size: 17px;
  color: var(--muted);
  line-height: 1.9;
}

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px 30px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 600;
  line-height: 1;
  transition: transform 0.25s var(--ease), box-shadow 0.25s var(--ease),
    background 0.25s var(--ease), color 0.25s var(--ease);
  white-space: nowrap;
}

.btn--primary {
  background: var(--brand-blue);
  color: #fff;
  box-shadow: 0 8px 22px rgba(0, 32, 176, 0.32);
}

.btn--primary:hover {
  background: var(--brand-blue-2);
  transform: translateY(-2px);
  box-shadow: 0 14px 30px rgba(0, 32, 176, 0.4);
}

.btn--red {
  background: var(--brand-red);
  color: #fff;
  box-shadow: 0 8px 22px rgba(208, 0, 0, 0.28);
}

.btn--red:hover {
  background: var(--brand-red-dark);
  transform: translateY(-2px);
}

.btn--ghost {
  background: transparent;
  color: var(--brand-blue);
  box-shadow: inset 0 0 0 1.5px var(--brand-blue);
}

.btn--ghost:hover {
  background: rgba(0, 32, 176, 0.06);
  transform: translateY(-2px);
}

.btn--ghost-light {
  background: rgba(255, 255, 255, 0.06);
  color: #fff;
  box-shadow: inset 0 0 0 1.5px rgba(255, 255, 255, 0.35);
  backdrop-filter: blur(4px);
}

.btn--ghost-light:hover {
  background: rgba(255, 255, 255, 0.14);
  transform: translateY(-2px);
}

.btn--lg {
  padding: 17px 38px;
  font-size: 16px;
}

.btn .arrow {
  transition: transform 0.25s var(--ease);
}

.btn:hover .arrow {
  transform: translateX(4px);
}

/* ---------- 顶部导航 ---------- */
.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 100;
  transition: background 0.3s var(--ease), box-shadow 0.3s var(--ease),
    padding 0.3s var(--ease);
  padding: 16px 0;
}

.site-header.is-solid {
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: saturate(180%) blur(16px);
  box-shadow: 0 1px 0 var(--line), 0 6px 24px rgba(10, 17, 64, 0.05);
  padding: 8px 0;
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
}

.brand img {
  height: 40px;
  width: auto;
}

.brand img.light-logo {
  display: none;
}

.site-header:not(.is-solid) .brand img.dark-logo {
  display: none;
}

.site-header:not(.is-solid) .brand img.light-logo {
  display: block;
}

.main-nav ul {
  display: flex;
  align-items: center;
  gap: 6px;
}

.main-nav a {
  position: relative;
  display: inline-block;
  padding: 9px 16px;
  font-size: 15px;
  font-weight: 500;
  color: var(--ink-2);
  border-radius: 999px;
  transition: color 0.2s, background 0.2s;
}

.site-header:not(.is-solid) .main-nav a {
  color: rgba(255, 255, 255, 0.85);
}

.main-nav a:hover {
  color: var(--brand-blue);
  background: rgba(0, 32, 176, 0.06);
}

.site-header:not(.is-solid) .main-nav a:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.12);
}

.main-nav a.is-active {
  color: var(--brand-blue);
  font-weight: 700;
}

.site-header:not(.is-solid) .main-nav a.is-active {
  color: #fff;
}

.main-nav a.is-active::after {
  content: "";
  position: absolute;
  left: 16px;
  right: 16px;
  bottom: 3px;
  height: 2px;
  border-radius: 2px;
  background: var(--brand-red);
}

.header-cta {
  display: inline-flex;
  align-items: center;
  gap: 12px;
}

.lang-switch {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 8px 15px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 700;
  line-height: 1;
  color: var(--ink-2);
  border: 1px solid var(--line);
  transition: color 0.2s, border-color 0.2s, background 0.2s;
  white-space: nowrap;
}

.site-header:not(.is-solid) .lang-switch {
  color: rgba(255, 255, 255, 0.85);
  border-color: rgba(255, 255, 255, 0.35);
}

.lang-switch:hover {
  color: var(--brand-blue);
  border-color: var(--brand-blue);
  background: rgba(0, 32, 176, 0.06);
}

.site-header:not(.is-solid) .lang-switch:hover {
  color: #fff;
  border-color: #fff;
  background: rgba(255, 255, 255, 0.12);
}

.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border-radius: 10px;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
}

.nav-toggle span {
  width: 20px;
  height: 2px;
  background: var(--ink);
  border-radius: 2px;
  transition: transform 0.3s var(--ease), opacity 0.3s;
}

.site-header:not(.is-solid) .nav-toggle span {
  background: #fff;
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  overflow: hidden;
  min-height: 92vh;
  display: flex;
  align-items: center;
  color: #fff;
  background: radial-gradient(
      120% 90% at 78% 8%,
      #1234b8 0%,
      transparent 52%
    ),
    radial-gradient(90% 80% at 10% 100%, #0c1a6e 0%, transparent 55%),
    linear-gradient(160deg, #050d2e 0%, #07113f 46%, #04123f 100%);
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: linear-gradient(
      rgba(255, 255, 255, 0.035) 1px,
      transparent 1px
    ),
    linear-gradient(90deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(120% 90% at 50% 0%, #000 30%, transparent 78%);
  -webkit-mask-image: radial-gradient(120% 90% at 50% 0%, #000 30%, transparent 78%);
  pointer-events: none;
}

.hero::after {
  content: "";
  position: absolute;
  width: 640px;
  height: 640px;
  right: -160px;
  top: 50%;
  transform: translateY(-50%);
  border-radius: 50%;
  background: radial-gradient(
    circle,
    rgba(0, 47, 255, 0.35) 0%,
    rgba(0, 47, 255, 0) 66%
  );
  filter: blur(10px);
  pointer-events: none;
}

.hero .container {
  position: relative;
  z-index: 2;
}

.hero-inner {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  align-items: center;
  gap: 48px;
  padding-top: 60px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 16px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 600;
  color: #cfe0ff;
  background: rgba(255, 255, 255, 0.08);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.16);
  margin-bottom: 24px;
}

.hero-badge .dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #ff4d4d;
  box-shadow: 0 0 0 4px rgba(255, 77, 77, 0.22);
}

.hero h1 {
  font-size: clamp(34px, 5.4vw, 62px);
  font-weight: 800;
  line-height: 1.14;
  letter-spacing: -0.02em;
  margin-bottom: 22px;
}

.hero h1 .accent {
  color: #ffd9d9;
  background: linear-gradient(180deg, transparent 62%, rgba(208, 0, 0, 0.55) 62%);
}

.hero-lead {
  font-size: 18px;
  line-height: 1.9;
  color: rgba(255, 255, 255, 0.82);
  max-width: 540px;
  margin-bottom: 34px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 40px;
}

.hero-metrics {
  display: flex;
  gap: 40px;
  flex-wrap: wrap;
}

.hero-metrics .metric strong {
  display: block;
  font-size: 30px;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: #fff;
}

.hero-metrics .metric strong em {
  font-style: normal;
  color: #ff8080;
}

.hero-metrics .metric span {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.66);
}

.hero-visual {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-visual svg {
  width: 100%;
  height: auto;
  filter: drop-shadow(0 30px 60px rgba(0, 0, 0, 0.45));
}

/* ---------- 卡片栅格 ---------- */
.grid {
  display: grid;
  gap: 24px;
}

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

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

.grid--4 {
  grid-template-columns: repeat(4, 1fr);
}

.card {
  position: relative;
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 34px 30px;
  border: 1px solid var(--line);
  box-shadow: var(--shadow-sm);
  transition: transform 0.3s var(--ease), box-shadow 0.3s var(--ease),
    border-color 0.3s var(--ease);
  overflow: hidden;
}

.card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow);
  border-color: transparent;
}

.card .icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  border-radius: 15px;
  margin-bottom: 20px;
  background: var(--bg-blue);
  color: var(--brand-blue);
}

.card h3 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--ink);
}

.card p {
  font-size: 15px;
  color: var(--muted);
  line-height: 1.85;
}

.card .card-tag {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  color: var(--brand-blue);
  background: var(--bg-blue);
  padding: 4px 10px;
  border-radius: 999px;
  margin-bottom: 14px;
}

.wechat-qr {
  display: block;
  width: 200px;
  max-width: 100%;
  height: auto;
  margin: 0 auto;
  border-radius: 10px;
  box-shadow: var(--shadow-sm);
}

/* 痛点卡片 */
.pain-card {
  border-top: 4px solid transparent;
}

.pain-card:hover {
  border-top-color: var(--brand-red);
}

.pain-card .pain-index {
  position: absolute;
  top: 24px;
  right: 28px;
  font-size: 44px;
  font-weight: 800;
  line-height: 1;
  color: var(--line);
  letter-spacing: -0.02em;
}

.pain-card h3 {
  color: var(--brand-red);
}

/* ---------- 解决方案清单 ---------- */
.solution-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
}

.check-list {
  display: grid;
  gap: 16px;
  margin-top: 28px;
}

.check-list li {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  padding: 18px 20px;
  border-radius: var(--radius);
  background: #fff;
  border: 1px solid var(--line);
  font-size: 16px;
  font-weight: 500;
  color: var(--ink-2);
  transition: transform 0.25s var(--ease), box-shadow 0.25s var(--ease);
}

.check-list li:hover {
  transform: translateX(6px);
  box-shadow: var(--shadow-sm);
}

.check-list .tick {
  flex: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--brand-blue);
  color: #fff;
  margin-top: 1px;
}

.check-list .tick svg {
  width: 13px;
  height: 13px;
}

/* ---------- 数据带 ---------- */
.stats-band {
  background: linear-gradient(140deg, var(--brand-blue-deep), var(--brand-blue));
  color: #fff;
  position: relative;
  overflow: hidden;
}

.stats-band::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(
      rgba(255, 255, 255, 0.08) 1px,
      transparent 1px
    );
  background-size: 26px 26px;
  opacity: 0.5;
}

.stats-grid {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  text-align: center;
}

.stat strong {
  display: block;
  font-size: clamp(36px, 5vw, 54px);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1;
}

.stat strong em {
  font-style: normal;
  color: #ff8f8f;
}

.stat span {
  display: block;
  margin-top: 12px;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.72);
}

/* ---------- 产品卡片 ---------- */
.product-card {
  padding: 0;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.product-media {
  position: relative;
  background: linear-gradient(150deg, #0a1140, #1234b8);
  aspect-ratio: 16 / 9;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.product-media svg {
  width: 78%;
  height: auto;
  transition: transform 0.5s var(--ease);
}

.product-card:hover .product-media svg {
  transform: translateY(-6px) scale(1.03);
}

.product-media .product-badge {
  position: absolute;
  top: 18px;
  left: 18px;
  padding: 6px 13px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
  color: #fff;
  background: var(--brand-red);
  box-shadow: 0 4px 14px rgba(208, 0, 0, 0.4);
}

.product-body {
  padding: 30px;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.product-body h3 {
  font-size: 22px;
  font-weight: 800;
  margin-bottom: 8px;
}

.product-body .product-desc {
  font-size: 14.5px;
  color: var(--muted);
  margin-bottom: 20px;
}

.spec-list {
  display: grid;
  gap: 11px;
  margin-bottom: 24px;
  flex: 1;
}

.spec-list li {
  display: flex;
  gap: 10px;
  font-size: 14.5px;
  color: var(--ink-2);
  align-items: flex-start;
}

.spec-list .spec-key {
  flex: none;
  font-weight: 700;
  color: var(--brand-blue);
  min-width: 88px;
}

.product-specs {
  flex: 1;
  margin-bottom: 24px;
}

.product-spec {
  margin-bottom: 16px;
}

.product-spec:last-child {
  margin-bottom: 0;
}

.product-spec-label {
  display: block;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--brand-red);
  text-transform: uppercase;
  margin-bottom: 8px;
}

.product-spec p {
  font-size: 14.5px;
  color: var(--muted);
  line-height: 1.85;
}

.product-spec .spec-list {
  margin-bottom: 0;
  flex: none;
  gap: 8px;
}

/* ---------- 领域网格 ---------- */
.domain-grid {
  grid-template-columns: repeat(3, 1fr);
}

.domain-card {
  text-align: left;
  padding: 30px 28px;
}

.domain-card .icon {
  margin-bottom: 16px;
}

.domain-card h3 {
  font-size: 18px;
  margin-bottom: 6px;
}

.domain-card p {
  font-size: 14px;
}

/* ---------- 合作伙伴 ---------- */
.partner-group {
  margin-bottom: 40px;
}

.partner-group:last-child {
  margin-bottom: 0;
}

.partner-group h3 {
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--muted);
  text-transform: uppercase;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.partner-group h3::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--line);
}

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

.partner-item {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 72px;
  padding: 14px 18px;
  border-radius: var(--radius);
  background: #fff;
  border: 1px solid var(--line);
  font-size: 15px;
  font-weight: 600;
  color: var(--ink-2);
  transition: transform 0.25s var(--ease), box-shadow 0.25s var(--ease),
    color 0.25s var(--ease), border-color 0.25s var(--ease);
}

.partner-item:hover {
  transform: translateY(-4px);
  color: var(--brand-blue);
  border-color: var(--brand-blue);
  box-shadow: var(--shadow-sm);
}

.partner-item img {
  max-height: 46px;
  max-width: 130px;
  width: auto;
  height: auto;
  object-fit: contain;
  transition: filter 0.25s var(--ease);
}

.partner-item:hover img {
  filter: none;
}

/* ---------- 竞品比对表 ---------- */
.compare-wrap {
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  overflow: hidden;
  box-shadow: var(--shadow);
  background: #fff;
}

.compare-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 15px;
}

.compare-table th,
.compare-table td {
  padding: 20px 22px;
  text-align: left;
  border-bottom: 1px solid var(--line-soft);
}

.compare-table thead th {
  background: var(--bg-navy);
  color: #fff;
  font-size: 15px;
  font-weight: 700;
}

.compare-table thead th:first-child {
  width: 16%;
  color: rgba(255, 255, 255, 0.7);
  font-weight: 500;
}

.compare-table thead th.highlight {
  background: var(--brand-blue);
  position: relative;
}

.compare-table thead th.highlight .flag {
  display: block;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: #ffd9d9;
  margin-top: 2px;
}

.compare-table tbody th {
  font-weight: 600;
  color: var(--ink-2);
  background: var(--bg-soft);
}

.compare-table tbody td {
  color: var(--muted);
}

.compare-table tbody td.highlight-cell {
  color: var(--ink);
  font-weight: 600;
  background: #f4f6ff;
}

.stars {
  color: var(--brand-red);
  letter-spacing: 1px;
  font-size: 13px;
}

.compare-note {
  margin-top: 18px;
  font-size: 13.5px;
  color: var(--muted-2);
}

/* ---------- 能力块 ---------- */
.capability {
  display: grid;
  grid-template-columns: 60px 1fr;
  gap: 24px;
  padding: 30px 0;
  border-bottom: 1px solid var(--line);
}

.capability:last-child {
  border-bottom: none;
}

.capability .cap-icon {
  width: 60px;
  height: 60px;
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-blue);
  color: var(--brand-blue);
  font-size: 26px;
}

.capability .cap-label {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--brand-red);
  text-transform: uppercase;
  margin-bottom: 6px;
}

.capability h3 {
  font-size: 21px;
  font-weight: 800;
  margin-bottom: 8px;
}

.capability p {
  color: var(--muted);
  font-size: 15px;
  line-height: 1.85;
}

.capability ul {
  margin-top: 10px;
  display: grid;
  gap: 6px;
}

.capability ul li {
  position: relative;
  padding-left: 20px;
  font-size: 14.5px;
  color: var(--ink-2);
}

.capability ul li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 7px;
  height: 7px;
  border-radius: 2px;
  background: var(--brand-blue);
}

/* ---------- 技术壁垒卡片 ---------- */
.tech-card {
  position: relative;
  padding: 36px 30px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  transition: transform 0.3s var(--ease), box-shadow 0.3s var(--ease);
}

.tech-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow);
}

.tech-card .tech-num {
  font-size: 13px;
  font-weight: 800;
  color: var(--brand-blue);
  letter-spacing: 0.06em;
}

.tech-card .tech-emoji {
  font-size: 34px;
  margin: 14px 0;
}

.tech-card h3 {
  font-size: 19px;
  font-weight: 800;
  margin-bottom: 6px;
}

.tech-card .tech-tag {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  color: var(--brand-red);
  background: rgba(208, 0, 0, 0.08);
  padding: 3px 10px;
  border-radius: 999px;
  margin-bottom: 12px;
}

.tech-card p {
  font-size: 14.5px;
  color: var(--muted);
  line-height: 1.85;
}

/* ---------- CTA 通栏 ---------- */
.cta-band {
  position: relative;
  overflow: hidden;
  background: radial-gradient(
      110% 100% at 100% 0%,
      #1234b8 0%,
      transparent 55%
    ),
    linear-gradient(150deg, #050d2e, #07113f);
  color: #fff;
  text-align: center;
}

.cta-band .container {
  position: relative;
  z-index: 2;
}

.cta-band h2 {
  font-size: clamp(28px, 4vw, 44px);
  font-weight: 800;
  line-height: 1.25;
  letter-spacing: -0.01em;
  margin-bottom: 18px;
}

.cta-band p {
  font-size: 17px;
  color: rgba(255, 255, 255, 0.78);
  max-width: 620px;
  margin: 0 auto 34px;
  line-height: 1.9;
}

.cta-tags {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
  margin-bottom: 34px;
}

.cta-tags span {
  padding: 8px 18px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 600;
  color: #cfe0ff;
  background: rgba(255, 255, 255, 0.08);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.14);
}

/* ---------- 页脚 ---------- */
.site-footer {
  background: var(--bg-navy);
  color: rgba(255, 255, 255, 0.72);
  padding: 72px 0 0;
  font-size: 14.5px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1.3fr;
  gap: 40px;
  padding-bottom: 48px;
}

.footer-brand img {
  height: 40px;
  width: auto;
  margin-bottom: 20px;
}

.footer-brand p {
  line-height: 1.9;
  max-width: 300px;
  color: rgba(255, 255, 255, 0.62);
}

.footer-col h4 {
  color: #fff;
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 18px;
}

.footer-col ul {
  display: grid;
  gap: 12px;
}

.footer-col a {
  color: rgba(255, 255, 255, 0.62);
  transition: color 0.2s;
}

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

.footer-contact li {
  display: flex;
  gap: 10px;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.62);
}

.footer-contact li strong {
  color: rgba(255, 255, 255, 0.9);
  flex: none;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding: 24px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.45);
}

/* ---------- 页头（内页） ---------- */
.page-hero {
  position: relative;
  overflow: hidden;
  padding: 168px 0 96px;
  color: #fff;
  background: radial-gradient(
      110% 90% at 85% 10%,
      #1234b8 0%,
      transparent 50%
    ),
    linear-gradient(160deg, #050d2e, #07113f);
}

.page-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: linear-gradient(
      rgba(255, 255, 255, 0.035) 1px,
      transparent 1px
    ),
    linear-gradient(90deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(120% 90% at 50% 0%, #000 30%, transparent 78%);
  -webkit-mask-image: radial-gradient(120% 90% at 50% 0%, #000 30%, transparent 78%);
}

.page-hero .container {
  position: relative;
  z-index: 2;
}

.page-hero .eyebrow {
  color: #9db4ff;
}

.page-hero h1 {
  font-size: clamp(32px, 5vw, 56px);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.15;
  margin-bottom: 18px;
}

.page-hero p {
  font-size: 18px;
  color: rgba(255, 255, 255, 0.8);
  max-width: 640px;
  line-height: 1.9;
}

.breadcrumb {
  display: flex;
  gap: 10px;
  align-items: center;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.5);
  margin-bottom: 22px;
}

.breadcrumb a {
  color: rgba(255, 255, 255, 0.7);
}

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

/* ---------- 揭示动画 ---------- */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}

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

.reveal[data-delay="1"] {
  transition-delay: 0.08s;
}
.reveal[data-delay="2"] {
  transition-delay: 0.16s;
}
.reveal[data-delay="3"] {
  transition-delay: 0.24s;
}
.reveal[data-delay="4"] {
  transition-delay: 0.32s;
}
.reveal[data-delay="5"] {
  transition-delay: 0.4s;
}

/* ---------- 解决方案块 ---------- */
.solution-block {
  padding: 72px 0;
}

.solution-block:nth-child(even) {
  background: var(--bg-soft);
}

.solution-block .solution-visual {
  background: radial-gradient(
      100% 100% at 100% 0%,
      #1234b8 0%,
      transparent 55%
    ),
    linear-gradient(160deg, #050d2e, #07113f);
  border-radius: var(--radius-lg);
  padding: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 320px;
  box-shadow: var(--shadow);
}

.solution-block .solution-visual svg {
  width: 100%;
  max-width: 440px;
  height: auto;
}

.solution-block .solution-text .eyebrow {
  margin-bottom: 12px;
}

.solution-block .solution-text h2 {
  font-size: clamp(24px, 3vw, 34px);
  font-weight: 800;
  letter-spacing: -0.01em;
  line-height: 1.25;
  margin-bottom: 14px;
}

.solution-block .solution-text > p {
  color: var(--muted);
  font-size: 16px;
  line-height: 1.9;
  margin-bottom: 20px;
}

.solution-block .solution-text .check-list {
  margin-top: 0;
}

/* ---------- 荣誉证书 ---------- */
.cert-card {
  text-align: center;
}

.cert-card .cert-media {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 14px;
  height: 240px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: transform 0.3s var(--ease), box-shadow 0.3s var(--ease);
}

.cert-card:hover .cert-media {
  transform: translateY(-6px);
  box-shadow: var(--shadow);
}

.cert-card .cert-media img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  transition: transform 0.4s var(--ease);
}

.cert-card:hover .cert-media img {
  transform: scale(1.04);
}

.cert-card figcaption {
  margin-top: 14px;
  font-size: 14.5px;
  font-weight: 600;
  color: var(--ink-2);
}

/* ---------- 新闻资讯 ---------- */
.news-list {
  display: grid;
  gap: 28px;
  max-width: 860px;
  margin: 0 auto;
}

.news-card {
  padding: 40px 44px;
}

.news-card time {
  display: inline-block;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--brand-blue);
  background: var(--bg-blue);
  padding: 6px 14px;
  border-radius: 999px;
  margin-bottom: 18px;
}

.news-card h2 {
  font-size: 22px;
  font-weight: 800;
  line-height: 1.4;
  margin-bottom: 16px;
  color: var(--ink);
}

.news-card .news-body {
  color: var(--muted);
  font-size: 15px;
  line-height: 1.9;
}

.news-card .news-body p + p,
.news-card .news-body .news-sub {
  margin-top: 14px;
}

.news-card .news-sub {
  font-weight: 600;
  color: var(--ink-2);
}

.news-points {
  display: grid;
  gap: 12px;
  list-style: none;
  counter-reset: news;
}

.news-points > li {
  position: relative;
  padding-left: 32px;
  counter-increment: news;
}

.news-points > li::before {
  content: counter(news);
  position: absolute;
  left: 0;
  top: 3px;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--brand-blue);
  color: #fff;
  font-size: 12px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
}

.news-points strong {
  color: var(--ink);
  font-weight: 700;
}

.news-points ul {
  margin-top: 8px;
  display: grid;
  gap: 6px;
  list-style: none;
}

.news-points ul li {
  position: relative;
  padding-left: 18px;
}

.news-points ul li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 10px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--brand-red);
}

/* ---------- 回到顶部 ---------- */
.back-top {
  position: fixed;
  right: 28px;
  bottom: 28px;
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: var(--brand-blue);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow);
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: opacity 0.3s, transform 0.3s, visibility 0.3s;
  z-index: 90;
}

.back-top.is-visible {
  opacity: 1;
  visibility: visible;
  transform: none;
}

.back-top:hover {
  background: var(--brand-blue-2);
}

/* ---------- 响应式 ---------- */
@media (max-width: 1024px) {
  .grid--4 {
    grid-template-columns: repeat(2, 1fr);
  }
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
  }
  .partner-list {
    grid-template-columns: repeat(3, 1fr);
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
  .hero-inner {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  .hero-visual {
    order: -1;
    max-width: 460px;
    margin: 0 auto;
  }
  .solution-split {
    grid-template-columns: 1fr;
    gap: 36px;
  }
}

@media (max-width: 768px) {
  .section {
    padding: 64px 0;
  }
  .grid--2,
  .grid--3,
  .grid--4,
  .domain-grid {
    grid-template-columns: 1fr;
  }
  .nav-toggle {
    display: flex;
  }
  .main-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: #fff;
    border-bottom: 1px solid var(--line);
    box-shadow: var(--shadow);
    padding: 12px 20px 20px;
    display: none;
  }
  .main-nav.is-open {
    display: block;
  }
  .main-nav ul {
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
  }
  .main-nav a {
    color: var(--ink) !important;
    display: block;
    padding: 12px 16px;
    font-size: 16px;
  }
  .main-nav a.is-active::after {
    display: none;
  }
  .header-cta .btn {
    display: none;
  }
  .hero {
    min-height: auto;
    padding: 128px 0 72px;
  }
  .hero-metrics {
    gap: 24px;
  }
  .page-hero {
    padding: 132px 0 64px;
  }
  .compare-table {
    font-size: 13.5px;
  }
  .compare-table th,
  .compare-table td {
    padding: 14px 12px;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .capability {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  .partner-list {
    grid-template-columns: repeat(2, 1fr);
  }
  .news-card {
    padding: 28px 22px;
  }
}

@media (max-width: 480px) {
  .hero h1 {
    font-size: 30px;
  }
  .hero-actions {
    flex-direction: column;
  }
  .hero-actions .btn {
    width: 100%;
  }
  .stats-grid {
    grid-template-columns: 1fr;
  }
  .partner-list {
    grid-template-columns: 1fr 1fr;
    gap: 10px;
  }
  .compare-wrap {
    overflow-x: auto;
  }
  .compare-table {
    min-width: 560px;
  }
}