/* =========================================================
   磁力搜索 · 高效智能搜索平台
   全站统一样式表
   ========================================================= */

:root {
  --bg: #f5f7ff;
  --bg-soft: #eef2ff;
  --surface: #ffffff;
  --ink: #101529;
  --ink-2: #1b2340;
  --muted: #5a6485;
  --line: #e2e8fa;
  --primary: #3f63f5;
  --primary-dark: #2c4bd6;
  --primary-soft: #e8edff;
  --cyan: #14c8d8;
  --violet: #7a5cff;
  --gold: #ffb648;
  --dark: #080d1e;
  --dark-2: #0e1530;
  --radius: 18px;
  --radius-sm: 12px;
  --shadow-sm: 0 4px 16px rgba(22, 35, 82, 0.07);
  --shadow: 0 18px 45px rgba(22, 35, 82, 0.12);
  --shadow-lg: 0 30px 70px rgba(10, 20, 60, 0.22);
  --font: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  --wrap: 1180px;
}

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

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

body {
  margin: 0;
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.75;
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

a {
  color: var(--primary);
  text-decoration: none;
  transition: color 0.25s ease;
}

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

h1, h2, h3, h4 {
  margin: 0 0 0.5em;
  line-height: 1.28;
  font-weight: 700;
  letter-spacing: -0.01em;
}

h1 { font-size: clamp(2rem, 4.2vw, 3.4rem); }
h2 { font-size: clamp(1.55rem, 2.6vw, 2.3rem); }
h3 { font-size: 1.22rem; }
h4 { font-size: 1.02rem; }

p { margin: 0 0 1.1em; }

ul, ol { margin: 0 0 1.1em; padding-left: 1.25em; }

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

.section {
  padding: 92px 0;
  position: relative;
}

.section--soft {
  background: linear-gradient(180deg, #ffffff 0%, var(--bg-soft) 100%);
}

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

.section-head {
  max-width: 760px;
  margin: 0 auto 52px;
  text-align: center;
}

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

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--primary);
  background: var(--primary-soft);
  border-radius: 999px;
  padding: 7px 16px;
  margin-bottom: 18px;
}

.eyebrow::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--primary);
}

.section-head p {
  color: var(--muted);
  font-size: 1.03rem;
  margin-bottom: 0;
}

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px 30px;
  border-radius: 999px;
  border: 1px solid transparent;
  font-family: inherit;
  font-size: 0.98rem;
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.25s ease, box-shadow 0.25s ease, background 0.25s ease, color 0.25s ease;
  white-space: nowrap;
}

.btn--primary {
  color: #fff;
  background: linear-gradient(120deg, var(--primary) 0%, var(--violet) 100%);
  box-shadow: 0 12px 28px rgba(63, 99, 245, 0.32);
}

.btn--primary:hover {
  color: #fff;
  transform: translateY(-3px);
  box-shadow: 0 18px 38px rgba(63, 99, 245, 0.4);
}

.btn--ghost {
  color: var(--ink);
  background: #fff;
  border-color: var(--line);
  box-shadow: var(--shadow-sm);
}

.btn--ghost:hover {
  color: var(--primary);
  border-color: #c9d6ff;
  transform: translateY(-3px);
}

.btn--light {
  color: #fff;
  border-color: rgba(255, 255, 255, 0.4);
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(8px);
}

.btn--light:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.2);
  transform: translateY(-3px);
}

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

/* ---------- 顶部导航 ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.86);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(226, 232, 250, 0.9);
  transition: box-shadow 0.3s ease, background 0.3s ease;
}

.site-header.is-scrolled {
  box-shadow: 0 10px 30px rgba(16, 21, 41, 0.09);
  background: rgba(255, 255, 255, 0.96);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 76px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--ink);
}

.brand:hover { color: var(--ink); }

.brand-mark {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border-radius: 12px;
  font-size: 1.05rem;
  font-weight: 700;
  color: #fff;
  background: linear-gradient(135deg, var(--primary) 0%, var(--cyan) 100%);
  box-shadow: 0 8px 20px rgba(63, 99, 245, 0.3);
}

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.25;
}

.brand-text strong {
  font-size: 1.1rem;
  letter-spacing: 0.02em;
}

.brand-text em {
  font-style: normal;
  font-size: 0.72rem;
  color: var(--muted);
  letter-spacing: 0.14em;
}

.nav {
  display: flex;
  align-items: center;
  gap: 30px;
}

.nav a {
  position: relative;
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--ink-2);
  padding: 6px 0;
}

.nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 2px;
  border-radius: 2px;
  background: var(--primary);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s ease;
}

.nav a:hover::after,
.nav a.is-active::after {
  transform: scaleX(1);
}

.nav a.is-active { color: var(--primary); }

.nav .nav-cta {
  padding: 10px 22px;
  border-radius: 999px;
  color: #fff;
  background: linear-gradient(120deg, var(--primary), var(--violet));
  box-shadow: 0 10px 24px rgba(63, 99, 245, 0.28);
}

.nav .nav-cta::after { display: none; }

.nav .nav-cta:hover {
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 14px 30px rgba(63, 99, 245, 0.36);
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: #fff;
  cursor: pointer;
  padding: 0;
  position: relative;
}

.nav-toggle span,
.nav-toggle span::before,
.nav-toggle span::after {
  position: absolute;
  left: 50%;
  width: 20px;
  height: 2px;
  background: var(--ink);
  border-radius: 2px;
  transform: translateX(-50%);
  transition: transform 0.3s ease, opacity 0.3s ease;
  content: "";
}

.nav-toggle span { top: 50%; margin-top: -1px; }
.nav-toggle span::before { top: -7px; }
.nav-toggle span::after { top: 7px; }

.nav-toggle[aria-expanded="true"] span { background: transparent; }
.nav-toggle[aria-expanded="true"] span::before { transform: translateX(-50%) rotate(45deg); top: 0; }
.nav-toggle[aria-expanded="true"] span::after { transform: translateX(-50%) rotate(-45deg); top: 0; }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  padding: 96px 0 104px;
  color: #fff;
  background: radial-gradient(120% 120% at 15% 0%, #1c2c66 0%, #0c1330 46%, var(--dark) 100%);
  overflow: hidden;
}

.hero::before,
.hero::after {
  content: "";
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
  filter: blur(10px);
}

.hero::before {
  width: 620px;
  height: 620px;
  top: -260px;
  right: -180px;
  background: radial-gradient(circle, rgba(63, 99, 245, 0.45) 0%, rgba(63, 99, 245, 0) 68%);
  animation: float 12s ease-in-out infinite;
}

.hero::after {
  width: 520px;
  height: 520px;
  bottom: -260px;
  left: -140px;
  background: radial-gradient(circle, rgba(20, 200, 216, 0.28) 0%, rgba(20, 200, 216, 0) 68%);
  animation: float 16s ease-in-out infinite reverse;
}

.hero-grid {
  position: absolute;
  inset: 0;
  background-image: linear-gradient(rgba(255, 255, 255, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.045) 1px, transparent 1px);
  background-size: 68px 68px;
  mask-image: radial-gradient(ellipse at 50% 35%, #000 25%, transparent 78%);
  -webkit-mask-image: radial-gradient(ellipse at 50% 35%, #000 25%, transparent 78%);
  pointer-events: none;
}

.hero-inner {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1.08fr 0.92fr;
  align-items: center;
  gap: 60px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px 18px;
  border-radius: 999px;
  font-size: 0.82rem;
  letter-spacing: 0.08em;
  color: #c9d6ff;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.16);
  margin-bottom: 24px;
}

.hero-badge i {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 0 6px rgba(20, 200, 216, 0.16);
}

.hero h1 {
  color: #fff;
  margin-bottom: 20px;
}

.hero h1 span {
  background: linear-gradient(100deg, #7fd9ff 0%, #b6a6ff 55%, #7f9bff 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-lead {
  font-size: 1.06rem;
  color: #b9c3e4;
  max-width: 560px;
  margin-bottom: 32px;
}

.hero-search {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(12px);
  max-width: 600px;
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.3);
}

.hero-search input {
  flex: 1;
  min-width: 0;
  height: 50px;
  padding: 0 20px;
  border: 0;
  border-radius: 999px;
  background: #fff;
  color: var(--ink);
  font-family: inherit;
  font-size: 0.96rem;
  outline: none;
}

.hero-search input:focus {
  box-shadow: 0 0 0 4px rgba(20, 200, 216, 0.35);
}

.hero-search .btn {
  padding: 13px 26px;
}

.hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 12px;
  margin-top: 20px;
  font-size: 0.85rem;
  color: #8f9bbf;
  align-items: center;
}

.hero-tags b {
  font-weight: 500;
  color: #aab6d8;
}

.hero-tags a,
.hero-tags button {
  border: 1px dashed rgba(255, 255, 255, 0.24);
  border-radius: 999px;
  padding: 5px 14px;
  color: #cfd8f5;
  background: transparent;
  font-family: inherit;
  font-size: 0.85rem;
  cursor: pointer;
  transition: background 0.25s ease, border-color 0.25s ease, transform 0.25s ease;
}

.hero-tags a:hover,
.hero-tags button:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.5);
  transform: translateY(-2px);
}

.hero-metrics {
  display: flex;
  gap: 40px;
  margin-top: 44px;
  flex-wrap: wrap;
}

.hero-metrics div {
  display: flex;
  flex-direction: column;
}

.hero-metrics strong {
  font-size: 1.65rem;
  font-weight: 700;
  color: #fff;
  letter-spacing: -0.02em;
}

.hero-metrics span {
  font-size: 0.82rem;
  color: #8d99bd;
  letter-spacing: 0.04em;
}

.hero-visual {
  position: relative;
}

.hero-card {
  position: relative;
  padding: 26px;
  border-radius: 22px;
  background: linear-gradient(160deg, rgba(255, 255, 255, 0.14), rgba(255, 255, 255, 0.04));
  border: 1px solid rgba(255, 255, 255, 0.18);
  box-shadow: var(--shadow-lg);
  backdrop-filter: blur(14px);
  animation: rise 0.9s ease both;
}

.hero-card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 18px;
}

.hero-card-head span {
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  color: #a9b5d8;
  text-transform: uppercase;
}

.dots {
  display: flex;
  gap: 6px;
}

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

.dots i:first-child { background: #ff6b6b; }
.dots i:nth-child(2) { background: var(--gold); }
.dots i:nth-child(3) { background: var(--cyan); }

.result-list {
  display: grid;
  gap: 12px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.result-list li {
  display: grid;
  grid-template-columns: 44px 1fr auto;
  align-items: center;
  gap: 14px;
  padding: 12px 14px;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.result-list .ico {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  font-size: 0.9rem;
  font-weight: 700;
  color: #fff;
  background: linear-gradient(135deg, rgba(63, 99, 245, 0.9), rgba(122, 92, 255, 0.75));
}

.result-list .meta b {
  display: block;
  color: #eef1ff;
  font-size: 0.94rem;
  font-weight: 600;
}

.result-list .meta span {
  font-size: 0.75rem;
  color: #93a0c6;
}

.result-list .tag {
  font-size: 0.72rem;
  color: #9ff5ff;
  background: rgba(20, 200, 216, 0.12);
  border: 1px solid rgba(20, 200, 216, 0.3);
  border-radius: 999px;
  padding: 3px 10px;
}

.hero-float {
  position: absolute;
  right: -18px;
  bottom: -28px;
  padding: 14px 20px;
  border-radius: 16px;
  background: #fff;
  color: var(--ink);
  box-shadow: var(--shadow);
  display: flex;
  align-items: center;
  gap: 12px;
  animation: float 6s ease-in-out infinite;
}

.hero-float .pulse {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: #19c37d;
  box-shadow: 0 0 0 8px rgba(25, 195, 125, 0.15);
}

.hero-float b { font-size: 0.9rem; display: block; }
.hero-float small { color: var(--muted); font-size: 0.75rem; }

/* ---------- 数据条 ---------- */
.metrics-bar {
  position: relative;
  z-index: 3;
  margin-top: -38px;
}

.metrics-inner {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  background: #fff;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.metrics-inner div {
  padding: 26px 28px;
  border-right: 1px solid var(--line);
}

.metrics-inner div:last-child { border-right: 0; }

.metrics-inner strong {
  display: block;
  font-size: 1.7rem;
  color: var(--ink);
  letter-spacing: -0.02em;
}

.metrics-inner span {
  font-size: 0.82rem;
  color: var(--muted);
}

/* ---------- 卡片网格 ---------- */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 26px;
}

.feature-card {
  position: relative;
  padding: 34px 30px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  transition: transform 0.35s ease, box-shadow 0.35s ease, border-color 0.35s ease;
  overflow: hidden;
}

.feature-card::after {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--cyan));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s ease;
}

.feature-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow);
  border-color: #cfdaff;
}

.feature-card:hover::after { transform: scaleX(1); }

.feature-icon {
  display: grid;
  place-items: center;
  width: 56px;
  height: 56px;
  border-radius: 16px;
  margin-bottom: 22px;
  background: var(--primary-soft);
  color: var(--primary);
  font-size: 1.4rem;
}

.feature-card:nth-child(2) .feature-icon { background: #e6fbfd; color: #0d9aa7; }
.feature-card:nth-child(3) .feature-icon { background: #f0ecff; color: #6b4bff; }
.feature-card:nth-child(4) .feature-icon { background: #fff5e6; color: #d78512; }
.feature-card:nth-child(5) .feature-icon { background: #eaf7ef; color: #1a9c68; }
.feature-card:nth-child(6) .feature-icon { background: #fdeef0; color: #d94860; }

.feature-card h3 { margin-bottom: 10px; }

.feature-card p {
  color: var(--muted);
  font-size: 0.94rem;
  margin-bottom: 16px;
}

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--primary);
}

.text-link::after {
  content: "→";
  transition: transform 0.25s ease;
}

.text-link:hover::after { transform: translateX(4px); }

/* ---------- 服务展示（带图） ---------- */
.services-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}

.service-card {
  display: grid;
  grid-template-columns: 190px 1fr;
  gap: 0;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: transform 0.35s ease, box-shadow 0.35s ease;
}

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

.service-card figure {
  margin: 0;
  position: relative;
  overflow: hidden;
  min-height: 100%;
}

.service-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.service-card:hover img { transform: scale(1.07); }

.service-body {
  padding: 28px;
}

.service-body h3 { margin-bottom: 8px; }

.service-body p {
  color: var(--muted);
  font-size: 0.94rem;
  margin-bottom: 14px;
}

.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  list-style: none;
  padding: 0;
  margin: 0;
}

.chips li {
  font-size: 0.76rem;
  color: var(--primary);
  background: var(--primary-soft);
  padding: 4px 10px;
  border-radius: 999px;
}

/* ---------- 使用步骤 ---------- */
.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 26px;
  counter-reset: step;
}

.step {
  position: relative;
  padding: 34px 28px;
  background: #fff;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-sm);
  counter-increment: step;
}

.step::before {
  content: counter(step, decimal-leading-zero);
  position: absolute;
  top: 18px;
  right: 24px;
  font-size: 2.4rem;
  font-weight: 700;
  color: var(--primary-soft);
  line-height: 1;
}

.step h3 { position: relative; margin-bottom: 10px; }

.step p {
  color: var(--muted);
  font-size: 0.94rem;
  margin-bottom: 0;
}

/* ---------- 排行 / 表格 ---------- */
.stack {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 34px;
  align-items: start;
}

.panel {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  padding: 28px;
}

.table-wrap { overflow-x: auto; }

table.data {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.92rem;
}

table.data th,
table.data td {
  text-align: left;
  padding: 13px 12px;
  border-bottom: 1px solid var(--line);
  white-space: nowrap;
}

table.data th {
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  font-weight: 600;
}

table.data tr:last-child td { border-bottom: 0; }

table.data td:first-child { font-weight: 600; color: var(--ink); }

.badge {
  display: inline-block;
  font-size: 0.72rem;
  padding: 3px 10px;
  border-radius: 999px;
  background: #eef3ff;
  color: var(--primary);
}

.badge--hot { background: #fff1e5; color: #cf6b0a; }
.badge--new { background: #e8fbf3; color: #0d8f60; }

.check-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.check-list li {
  position: relative;
  padding: 9px 0 9px 30px;
  font-size: 0.94rem;
  color: var(--ink-2);
  border-bottom: 1px dashed var(--line);
}

.check-list li:last-child { border-bottom: 0; }

.check-list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  top: 9px;
  width: 20px;
  height: 20px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--primary-soft);
  color: var(--primary);
  font-size: 0.75rem;
}

/* ---------- 评价 ---------- */
.quote-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 26px;
}

.quote {
  padding: 30px 28px;
  border-radius: var(--radius);
  background: #fff;
  border: 1px solid var(--line);
  box-shadow: var(--shadow-sm);
}

.quote p {
  color: var(--ink-2);
  font-size: 0.95rem;
}

.quote-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 18px;
}

.avatar {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  color: #fff;
  font-weight: 700;
  background: linear-gradient(135deg, var(--primary), var(--violet));
  flex: none;
}

.quote-meta b { display: block; font-size: 0.9rem; }
.quote-meta small { color: var(--muted); font-size: 0.78rem; }

/* ---------- FAQ ---------- */
.faq-list {
  max-width: 860px;
  margin: 0 auto;
  display: grid;
  gap: 14px;
}

.faq-item {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  overflow: hidden;
  transition: border-color 0.25s ease, box-shadow 0.25s ease;
}

.faq-item[open] { box-shadow: var(--shadow-sm); border-color: #cfdaff; }

.faq-item summary {
  list-style: none;
  cursor: pointer;
  padding: 20px 26px;
  font-weight: 600;
  font-size: 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.faq-item summary::-webkit-details-marker { display: none; }

.faq-item summary::after {
  content: "+";
  font-size: 1.3rem;
  font-weight: 500;
  color: var(--primary);
  transition: transform 0.25s ease;
  flex: none;
}

.faq-item[details-open] summary::after { transform: rotate(45deg); }

.faq-item[open] summary::after { transform: rotate(45deg); }

.faq-item p {
  margin: 0;
  padding: 0 26px 22px;
  color: var(--muted);
  font-size: 0.95rem;
}

/* ---------- CTA ---------- */
.cta {
  position: relative;
  padding: 84px 0;
  color: #fff;
  background: radial-gradient(110% 160% at 20% 10%, #25346e 0%, #121a3d 55%, #080d1e 100%);
  overflow: hidden;
}

.cta::before {
  content: "";
  position: absolute;
  width: 560px;
  height: 560px;
  right: -180px;
  top: -180px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(20, 200, 216, 0.22), transparent 66%);
}

.cta-inner {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
}

.cta h2 { color: #fff; margin-bottom: 10px; }

.cta p { color: #aeb9dc; margin-bottom: 0; max-width: 560px; }

.cta-actions { display: flex; gap: 14px; flex-wrap: wrap; }

/* ---------- 页脚 ---------- */
.site-footer {
  background: #070b17;
  color: #9aa5c6;
  padding: 66px 0 0;
  font-size: 0.9rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 50px;
}

.site-footer .brand { color: #fff; }
.site-footer .brand:hover { color: #fff; }
.site-footer .brand-text em { color: #8e9abd; }

.footer-about p {
  margin: 20px 0;
  color: #8e9abd;
  max-width: 330px;
}

.footer-col h4 {
  color: #fff;
  font-size: 0.95rem;
  margin-bottom: 16px;
}

.footer-col ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 10px;
}

.footer-col a { color: #9aa5c6; font-size: 0.88rem; }
.footer-col a:hover { color: #fff; }

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.09);
  padding: 22px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
  font-size: 0.82rem;
  color: #7783a3;
}

.footer-bottom p { margin: 0; }

.footer-links { display: flex; gap: 20px; flex-wrap: wrap; }
.footer-links a { color: #7783a3; }
.footer-links a:hover { color: #cfd8f2; }

/* ---------- 子页面 Hero ---------- */
.page-hero {
  position: relative;
  padding: 82px 0 76px;
  color: #fff;
  background: radial-gradient(120% 150% at 80% 0%, #22346f 0%, #101736 50%, #080d1e 100%);
  overflow: hidden;
}

.page-hero::after {
  content: "";
  position: absolute;
  width: 480px;
  height: 480px;
  left: -160px;
  bottom: -260px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(122, 92, 255, 0.28), transparent 66%);
}

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

.page-hero h1 { color: #fff; margin-bottom: 16px; }

.page-hero p {
  color: #b3bedf;
  max-width: 640px;
  margin-bottom: 0;
}

.page-hero .eyebrow {
  color: #a9c4ff;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.14);
}

.page-hero .eyebrow::before { background: var(--cyan); }

.breadcrumb {
  display: flex;
  gap: 8px;
  align-items: center;
  font-size: 0.82rem;
  color: #8e9abd;
  margin-bottom: 22px;
  flex-wrap: wrap;
}

.breadcrumb a { color: #aab6d8; }
.breadcrumb a:hover { color: #fff; }
.breadcrumb span { color: #6e7a9c; }

/* ---------- 通用双栏 ---------- */
.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
}

.split-media {
  position: relative;
  border-radius: 22px;
  overflow: hidden;
  box-shadow: var(--shadow);
}

.split-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  aspect-ratio: 4 / 3;
}

.media-badge {
  position: absolute;
  left: 20px;
  bottom: 20px;
  padding: 12px 18px;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.94);
  box-shadow: var(--shadow-sm);
  font-size: 0.82rem;
  color: var(--muted);
}

.media-badge b { display: block; color: var(--ink); font-size: 1rem; }

.stat-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin-top: 28px;
}

.stat-row div {
  padding: 18px;
  border-radius: 14px;
  background: var(--bg-soft);
  text-align: center;
}

.stat-row strong {
  display: block;
  font-size: 1.35rem;
  color: var(--primary);
}

.stat-row span { font-size: 0.78rem; color: var(--muted); }

/* ---------- 时间线 ---------- */
.timeline {
  position: relative;
  display: grid;
  gap: 26px;
  padding-left: 34px;
}

.timeline::before {
  content: "";
  position: absolute;
  left: 9px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background: linear-gradient(180deg, var(--primary), rgba(63, 99, 245, 0.05));
}

.timeline-item {
  position: relative;
  padding: 24px 28px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-sm);
}

.timeline-item::before {
  content: "";
  position: absolute;
  left: -33px;
  top: 30px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: #fff;
  border: 3px solid var(--primary);
  box-shadow: 0 0 0 4px rgba(63, 99, 245, 0.12);
}

.timeline-item time {
  display: inline-block;
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  color: var(--primary);
  font-weight: 700;
  margin-bottom: 6px;
}

.timeline-item h3 { font-size: 1.08rem; margin-bottom: 6px; }

.timeline-item p { color: var(--muted); font-size: 0.92rem; margin: 0; }

/* ---------- 团队 ---------- */
.team-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.team-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 24px;
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

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

.team-card img {
  width: 92px;
  height: 92px;
  border-radius: 50%;
  object-fit: cover;
  margin: 0 auto 16px;
  border: 4px solid var(--primary-soft);
}

.team-card h3 { font-size: 1rem; margin-bottom: 2px; }

.team-card span {
  display: block;
  font-size: 0.78rem;
  color: var(--primary);
  margin-bottom: 10px;
}

.team-card p { font-size: 0.85rem; color: var(--muted); margin: 0; }

/* ---------- 新闻 ---------- */
.news-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 26px;
}

.news-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  transition: transform 0.35s ease, box-shadow 0.35s ease;
}

.news-card:hover { transform: translateY(-7px); box-shadow: var(--shadow); }

.news-card figure {
  margin: 0;
  overflow: hidden;
  aspect-ratio: 16 / 10;
}

.news-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.news-card:hover img { transform: scale(1.06); }

.news-body { padding: 24px 24px 26px; display: flex; flex-direction: column; flex: 1; }

.news-meta {
  display: flex;
  gap: 12px;
  align-items: center;
  font-size: 0.76rem;
  color: var(--muted);
  margin-bottom: 10px;
}

.news-meta .cat {
  color: var(--primary);
  background: var(--primary-soft);
  border-radius: 999px;
  padding: 2px 9px;
  font-weight: 600;
}

.news-card h3 {
  font-size: 1.05rem;
  margin-bottom: 8px;
}

.news-card h3 a { color: var(--ink); }
.news-card h3 a:hover { color: var(--primary); }

.news-card p { color: var(--muted); font-size: 0.9rem; margin-bottom: 16px; }

.news-body .text-link { margin-top: auto; }

.featured-news {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 0;
  background: #fff;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  border: 1px solid var(--line);
  margin-bottom: 52px;
}

.featured-news figure { margin: 0; min-height: 320px; }

.featured-news img { width: 100%; height: 100%; object-fit: cover; }

.featured-news .news-body { padding: 42px; justify-content: center; }

.featured-news h2 { font-size: 1.6rem; }

/* 文章正文 */
.article-layout {
  display: grid;
  grid-template-columns: 1fr 330px;
  gap: 44px;
  align-items: start;
}

.article-body {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 44px;
  box-shadow: var(--shadow-sm);
}

.article-body > p:first-of-type {
  font-size: 1.04rem;
  color: var(--ink-2);
}

.article-body h2 { font-size: 1.45rem; margin-top: 34px; }

.article-body h2:first-child { margin-top: 0; }

.article-body p { color: #454f6e; }

.article-body ul li { color: #454f6e; margin-bottom: 8px; }

.article-body img {
  border-radius: var(--radius-sm);
  margin: 26px 0;
}

.article-hero-img {
  border-radius: var(--radius);
  overflow: hidden;
  margin-bottom: 34px;
  box-shadow: var(--shadow-sm);
}

.article-hero-img img { width: 100%; aspect-ratio: 16 / 8; object-fit: cover; }

.article-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 30px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
}

.article-tags a {
  font-size: 0.8rem;
  color: var(--muted);
  background: var(--bg-soft);
  border-radius: 999px;
  padding: 5px 13px;
}

.article-tags a:hover { color: var(--primary); background: var(--primary-soft); }

.aside-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 26px;
  box-shadow: var(--shadow-sm);
  margin-bottom: 22px;
}

.aside-card h3 {
  font-size: 1rem;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 16px;
}

.side-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 14px;
}

.side-list a {
  display: block;
  font-size: 0.9rem;
  color: var(--ink-2);
  line-height: 1.55;
}

.side-list a:hover { color: var(--primary); }

.side-list small {
  display: block;
  color: var(--muted);
  font-size: 0.75rem;
  margin-top: 4px;
}

.side-cta {
  background: linear-gradient(160deg, #17204a, #0c1230);
  color: #fff;
  border: 0;
}

.side-cta h3 { color: #fff; border-color: rgba(255, 255, 255, 0.16); }

.side-cta p { color: #a9b6da; font-size: 0.88rem; }

/* ---------- 联系页 ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: 0.95fr 1.05fr;
  gap: 40px;
  align-items: start;
}

.contact-cards {
  display: grid;
  gap: 16px;
  margin-bottom: 26px;
}

.contact-card {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  padding: 22px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-sm);
  transition: transform 0.3s ease, border-color 0.3s ease;
}

.contact-card:hover { transform: translateX(5px); border-color: #cfdaff; }

.contact-card .feature-icon {
  width: 48px;
  height: 48px;
  margin: 0;
  flex: none;
  font-size: 1.2rem;
}

.contact-card h3 { font-size: 0.98rem; margin-bottom: 4px; }

.contact-card p { margin: 0; font-size: 0.9rem; color: var(--muted); }

.contact-form {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 38px;
  box-shadow: var(--shadow);
}

.contact-form h2 { font-size: 1.4rem; margin-bottom: 6px; }

.contact-form > p { color: var(--muted); font-size: 0.9rem; margin-bottom: 26px; }

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.field { margin-bottom: 18px; }

.field label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 7px;
  color: var(--ink-2);
}

.field input,
.field select,
.field textarea {
  width: 100%;
  padding: 13px 16px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--line);
  background: #fbfcff;
  font-family: inherit;
  font-size: 0.94rem;
  color: var(--ink);
  outline: none;
  transition: border-color 0.25s ease, box-shadow 0.25s ease;
}

.field textarea { resize: vertical; min-height: 132px; }

.field input:focus,
.field select:focus,
.field textarea:focus {
  border-color: #aebfff;
  box-shadow: 0 0 0 4px rgba(63, 99, 245, 0.12);
  background: #fff;
}

.form-note {
  font-size: 0.78rem;
  color: var(--muted);
  margin: 14px 0 0;
}

/* ---------- 提示浮层 ---------- */
.toast {
  position: fixed;
  left: 50%;
  bottom: 32px;
  transform: translate(-50%, 30px);
  max-width: 92vw;
  padding: 14px 24px;
  border-radius: 999px;
  background: rgba(12, 19, 48, 0.94);
  color: #fff;
  font-size: 0.9rem;
  box-shadow: var(--shadow-lg);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease, transform 0.3s ease;
  z-index: 999;
}

.toast.is-visible { opacity: 1; transform: translate(-50%, 0); }

/* ---------- 搜索演示结果 ---------- */
.search-panel {
  max-width: 860px;
  margin: 26px auto 0;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 26px 28px;
  display: none;
  text-align: left;
  color: var(--ink);
}

.search-panel.is-open { display: block; animation: rise 0.5s ease both; }

.search-panel-head {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: center;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line);
  font-size: 0.86rem;
  color: var(--muted);
}

.search-panel-head b { color: var(--primary); }

.search-results {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.search-results li {
  padding: 14px 4px;
  border-bottom: 1px dashed var(--line);
}

.search-results li:last-child { border-bottom: 0; }

.search-results b { display: block; font-size: 0.96rem; color: var(--ink); }

.search-results span { font-size: 0.8rem; color: var(--muted); }

.search-empty { color: var(--muted); font-size: 0.9rem; padding: 10px 0 0; }

/* ---------- 动画 ---------- */
@keyframes float {
  0%, 100% { transform: translateY(0) scale(1); }
  50% { transform: translateY(-18px) scale(1.03); }
}

@keyframes rise {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: translateY(0); }
}

.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s cubic-bezier(0.2, 0.7, 0.2, 1), transform 0.7s cubic-bezier(0.2, 0.7, 0.2, 1);
  will-change: opacity, transform;
}

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

.reveal[data-delay="1"] { transition-delay: 0.1s; }
.reveal[data-delay="2"] { transition-delay: 0.2s; }
.reveal[data-delay="3"] { transition-delay: 0.3s; }

/* ---------- 回到顶部 ---------- */
.to-top {
  position: fixed;
  right: 24px;
  bottom: 24px;
  width: 46px;
  height: 46px;
  border-radius: 50%;
  border: 1px solid var(--line);
  background: #fff;
  color: var(--primary);
  font-size: 1.1rem;
  cursor: pointer;
  box-shadow: var(--shadow-sm);
  opacity: 0;
  transform: translateY(16px);
  pointer-events: none;
  transition: opacity 0.3s ease, transform 0.3s ease;
  z-index: 90;
}

.to-top.is-visible { opacity: 1; transform: none; pointer-events: auto; }

.to-top:hover { color: #fff; background: var(--primary); }

/* ---------- 响应式 ---------- */
@media (max-width: 1080px) {
  .hero-inner { grid-template-columns: 1fr; gap: 44px; }
  .hero-visual { max-width: 560px; }
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
  .team-grid { grid-template-columns: repeat(2, 1fr); }
  .metrics-inner { grid-template-columns: repeat(2, 1fr); }
  .metrics-inner div:nth-child(2) { border-right: 0; }
  .metrics-inner div:nth-child(1),
  .metrics-inner div:nth-child(2) { border-bottom: 1px solid var(--line); }
  .quote-grid { grid-template-columns: 1fr; }
  .article-layout { grid-template-columns: 1fr; }
  .aside-card { margin-bottom: 0; }
}

@media (max-width: 1024px) {
  .nav {
    position: absolute;
    left: 0;
    right: 0;
    top: 100%;
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
    padding: 16px 24px 24px;
    background: #fff;
    border-bottom: 1px solid var(--line);
    box-shadow: var(--shadow);
    display: none;
  }

  .nav.is-open { display: flex; animation: rise 0.35s ease both; }

  .nav a { padding: 12px 6px; border-bottom: 1px solid var(--line); }

  .nav a::after { display: none; }

  .nav .nav-cta { text-align: center; margin-top: 10px; border-bottom: 0; }

  .nav-toggle { display: block; }

  .header-inner { position: relative; }

  .services-grid { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr; }
  .stack { grid-template-columns: 1fr; }
  .split { grid-template-columns: 1fr; gap: 34px; }
  .split-media { order: -1; }
  .news-grid { grid-template-columns: repeat(2, 1fr); }
  .featured-news { grid-template-columns: 1fr; }
  .featured-news figure { min-height: 220px; }
  .featured-news .news-body { padding: 28px; }
  .contact-grid { grid-template-columns: 1fr; }
  .cta-inner { flex-direction: column; align-items: flex-start; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
}

@media (max-width: 640px) {
  .section { padding: 66px 0; }
  .hero { padding: 70px 0 84px; }
  .page-hero { padding: 60px 0 56px; }
  .container { padding: 0 18px; }
  .feature-grid,
  .news-grid,
  .team-grid,
  .footer-grid,
  .form-row,
  .stat-row { grid-template-columns: 1fr; }
  .metrics-inner { grid-template-columns: 1fr; }
  .metrics-inner div { border-right: 0; border-bottom: 1px solid var(--line); }
  .metrics-inner div:last-child { border-bottom: 0; }
  .hero-search { flex-direction: column; border-radius: 20px; padding: 12px; }
  .hero-search input { width: 100%; border-radius: 14px; }
  .hero-search .btn { width: 100%; border-radius: 14px; }
  .service-card { grid-template-columns: 1fr; }
  .service-card figure { aspect-ratio: 16 / 9; }
  .hero-metrics { gap: 24px; }
  .hero-float { right: 8px; bottom: -24px; }
  .article-body { padding: 26px; }
  .contact-form { padding: 26px; }
  .cta { padding: 64px 0; }
  .footer-bottom { flex-direction: column; align-items: flex-start; }
  .to-top { right: 16px; bottom: 16px; }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
  html { scroll-behavior: auto; }
}