/* ==========================================================================
   狗狗加速 — 企业官网样式
   设计语言：磨砂亚麻 / 清新商务 / 商务蓝
   ========================================================================== */

:root {
  --canvas: #fcfcfc;
  --wash: #f0f4fe;
  --white: #ffffff;
  --ink: #020520;
  --graphite: #14141e;
  --slate: #374151;
  --mist: #696a72;
  --fog: #95959b;
  --steel: #6b7280;
  --signal: #145aff;
  --action: #0f1f3d;
  --green: #16ca2e;
  --coral: #f26052;
  --sky: #0099ff;
  --amber: #ffa64d;
  --border: #e7e9f0;

  --radius-pill: 100px;
  --radius-card: 8px;
  --radius-badge: 4px;
  --radius-image: 16px;
  --radius-input: 12px;
  --radius-modal: 32px;
  --radius-btn: 12px;
  --radius-large: 40px;

  --shadow-card: rgba(0, 0, 0, 0.1) 0px 0px 4px -2px;
  --shadow-raised: rgba(0, 0, 0, 0.25) 0px 0px 4px -2px;
  --shadow-feature: rgba(0, 0, 0, 0.082) 0px 0.36px 1.81px -1.42px,
    rgba(0, 0, 0, 0.07) 0px 1.37px 6.87px -2.83px,
    rgba(0, 0, 0, 0.016) 0px 6px 30px -4.25px;
  --shadow-focus: rgba(20, 90, 255, 0.1) 0px 0px 50px -28px,
    rgba(0, 0, 0, 0.18) 0px 0px 3px -1px;
  --shadow-glow: rgba(20, 90, 255, 0.1) 0px 0px 100px -28px;

  --header-h: 76px;
  --section-y: 80px;
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 16px);
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--canvas);
  color: var(--slate);
  font-family: Inter, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  letter-spacing: 0;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img, svg { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font: inherit; }
ul, ol { margin: 0; padding: 0; list-style: none; }
p { margin: 0 0 16px; }
h1, h2, h3, h4, h5 { margin: 0 0 16px; color: var(--ink); font-weight: 600; line-height: 1.15; }
h1 { font-size: 56px; letter-spacing: -1.51px; line-height: 1.05; }
h2 { font-size: 40px; letter-spacing: -0.76px; line-height: 1.08; }
h3 { font-size: 22px; letter-spacing: -0.22px; line-height: 1.25; color: var(--graphite); }
h4 { font-size: 18px; letter-spacing: -0.16px; line-height: 1.4; color: var(--graphite); }
strong { color: var(--graphite); font-weight: 600; }

::selection { background: rgba(20, 90, 255, 0.14); }

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.section { padding: var(--section-y) 0; }
.section--wash { background: var(--wash); }
.section--tight { padding: 56px 0; }
.section-head { max-width: 720px; margin: 0 auto 48px; text-align: center; }
.section-head p { color: var(--mist); font-size: 16px; margin-bottom: 0; }
.section-head--left { margin-left: 0; text-align: left; }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 18px;
  color: var(--signal);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.18px;
  text-transform: uppercase;
}
.eyebrow::before {
  content: "";
  width: 22px;
  height: 1px;
  background: linear-gradient(90deg, #3b82f6 0%, #145aff 100%);
}
.eyebrow--plain::before { display: none; }

.lead { font-size: 18px; line-height: 1.7; color: var(--mist); }
.muted { color: var(--mist); font-size: 14px; }
.text-small { font-size: 14px; }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 15px 24px;
  border-radius: var(--radius-btn);
  font-size: 15px;
  font-weight: 500;
  line-height: 1;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.18s ease, box-shadow 0.18s ease, background-color 0.18s ease, border-color 0.18s ease, color 0.18s ease;
  white-space: nowrap;
}
.btn svg { flex: none; }

.btn-primary {
  background: linear-gradient(rgb(59, 130, 246) 0%, rgb(20, 90, 255) 100%);
  color: #ffffff;
  border-color: transparent;
  font-weight: 600;
  font-size: 14px;
}
.btn-primary:hover {
  box-shadow: 0 8px 22px -10px rgba(20, 90, 255, 0.65);
  transform: translateY(-1px);
}

.btn-outline {
  background: rgba(255, 255, 255, 0.8);
  color: var(--action);
  border: 1px solid var(--action);
  font-weight: 500;
}
.btn-outline:hover {
  background: #ffffff;
  border-color: #020520;
  box-shadow: var(--shadow-raised);
}

.btn-ghost {
  background: var(--canvas);
  color: var(--signal);
  border: 1px solid rgba(20, 90, 255, 0.35);
  border-radius: var(--radius-pill);
  padding: 14px 32px;
  font-size: 16px;
}
.btn-ghost:hover { background: var(--wash); border-color: var(--signal); }

.btn-sm { padding: 11px 18px; font-size: 14px; border-radius: 10px; }
.btn-block { width: 100%; }

.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--action);
  font-size: 14px;
  font-weight: 500;
  transition: gap 0.18s ease, color 0.18s ease;
}
.link-arrow:hover { gap: 10px; color: var(--signal); }

/* ---------- 顶部导航 ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(252, 252, 252, 0.82);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(231, 233, 240, 0.8);
}
.header-inner {
  height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.brand { display: inline-flex; align-items: center; gap: 10px; }
.brand-mark {
  width: 38px;
  height: 38px;
  border-radius: 11px;
  background: linear-gradient(135deg, #3b82f6 0%, #145aff 100%);
  display: grid;
  place-items: center;
  box-shadow: 0 6px 16px -8px rgba(20, 90, 255, 0.8);
}
.brand-mark svg { width: 22px; height: 22px; stroke: #fff; fill: none; stroke-width: 1.6; }
.brand-logo { width: 38px; height: 38px; object-fit: contain; flex: none; }
.brand-text { display: flex; flex-direction: column; line-height: 1.1; color: var(--ink); font-size: 17px; font-weight: 600; letter-spacing: -0.2px; }
.brand-sub { font-size: 9px; font-weight: 500; letter-spacing: 1.6px; color: var(--fog); margin-top: 3px; }

.main-nav { display: flex; align-items: center; gap: 4px; }
.main-nav a {
  padding: 9px 16px;
  border-radius: var(--radius-pill);
  color: var(--slate);
  font-size: 14px;
  transition: background-color 0.18s ease, color 0.18s ease;
}
.main-nav a:hover { background: var(--wash); color: var(--ink); }
.main-nav a.is-active { background: var(--wash); color: var(--ink); font-weight: 500; }

.header-actions { display: flex; align-items: center; gap: 10px; }

.nav-toggle {
  display: none;
  width: 40px;
  height: 40px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: #fff;
  cursor: pointer;
  padding: 0;
  place-items: center;
}
.nav-toggle span {
  display: block;
  width: 18px;
  height: 1.5px;
  background: var(--graphite);
  position: relative;
}
.nav-toggle span::before,
.nav-toggle span::after {
  content: "";
  position: absolute;
  left: 0;
  width: 18px;
  height: 1.5px;
  background: var(--graphite);
  transition: transform 0.2s ease;
}
.nav-toggle span::before { top: -6px; }
.nav-toggle span::after { top: 6px; }
body.nav-open .nav-toggle span { background: transparent; }
body.nav-open .nav-toggle span::before { transform: translateY(6px) rotate(45deg); }
body.nav-open .nav-toggle span::after { transform: translateY(-6px) rotate(-45deg); }

/* ---------- 首页 Hero ---------- */
.hero {
  position: relative;
  overflow: hidden;
  padding: 84px 0 64px;
  background:
    radial-gradient(60% 70% at 50% 8%, rgba(182, 203, 253, 0.55) 0%, rgba(240, 244, 254, 0.7) 45%, rgba(252, 252, 252, 0) 78%),
    radial-gradient(40% 50% at 82% 30%, rgba(182, 203, 253, 0.35) 0%, rgba(252, 252, 252, 0) 70%),
    var(--canvas);
  min-height: calc(100vh - var(--header-h));
  display: flex;
  align-items: center;
}
.hero::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 30%;
  transform: translateX(-50%);
  width: 720px;
  height: 420px;
  background: rgba(20, 90, 255, 0.08);
  filter: blur(90px);
  border-radius: 50%;
  pointer-events: none;
  z-index: 0;
}
.hero-inner { position: relative; z-index: 1; text-align: center; }
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  border-radius: var(--radius-pill);
  background: rgba(252, 252, 252, 0.7);
  border: 1px solid rgba(20, 90, 255, 0.16);
  color: var(--slate);
  font-size: 12px;
  font-weight: 500;
  backdrop-filter: blur(8px);
  margin-bottom: 26px;
}
.hero-badge .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--green); box-shadow: 0 0 0 3px rgba(22, 202, 46, 0.14); }
.hero h1 { font-size: clamp(38px, 5.4vw, 80px); letter-spacing: -2.96px; line-height: 1.02; margin-bottom: 22px; }
.hero h1 em {
  font-style: normal;
  background: linear-gradient(rgb(59, 130, 246) 0%, rgb(20, 90, 255) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero-sub { max-width: 640px; margin: 0 auto 32px; font-size: 18px; line-height: 1.7; color: var(--mist); }
.hero-cta { display: flex; align-items: center; justify-content: center; gap: 14px; flex-wrap: wrap; }
.hero-meta {
  margin-top: 30px;
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 28px;
  color: var(--fog);
  font-size: 12px;
}
.hero-meta span { display: inline-flex; align-items: center; gap: 7px; }
.hero-meta svg { width: 14px; height: 14px; stroke: var(--signal); fill: none; stroke-width: 1.6; }

/* 产品界面演示卡 */
.hero-shot {
  margin: 48px auto 0;
  max-width: 980px;
  background: rgba(252, 252, 252, 0.72);
  border: 1px solid rgba(255, 255, 255, 0.9);
  border-radius: 28px;
  padding: 12px;
  box-shadow: var(--shadow-feature), 0 30px 60px -50px rgba(2, 5, 32, 0.5);
  backdrop-filter: blur(12px);
}
.mock {
  background: #fff;
  border-radius: var(--radius-image);
  border: 1px solid var(--border);
  overflow: hidden;
}
.mock-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
  background: #fcfcfc;
}
.mock-bar i { width: 8px; height: 8px; border-radius: 50%; background: #e5e7ef; }
.mock-bar i:nth-child(1) { background: #f26052; opacity: 0.5; }
.mock-bar i:nth-child(2) { background: #ffa64d; opacity: 0.5; }
.mock-bar i:nth-child(3) { background: #16ca2e; opacity: 0.5; }
.mock-url {
  margin-left: 8px;
  font-size: 11px;
  color: var(--fog);
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-pill);
  padding: 3px 12px;
}
.mock-body { display: grid; grid-template-columns: 190px 1fr; min-height: 300px; }
.mock-side { border-right: 1px solid var(--border); padding: 16px 12px; background: #fcfcfc; }
.mock-side .row {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 8px 12px;
  border-radius: var(--radius-pill);
  color: var(--slate);
  font-size: 12px;
  margin-bottom: 3px;
}
.mock-side .row.on { background: var(--wash); color: var(--graphite); font-weight: 500; }
.mock-side .row b { width: 6px; height: 6px; border-radius: 2px; background: #c9d4ef; display: inline-block; }
.mock-side .row.on b { background: var(--signal); }
.mock-main { padding: 20px; text-align: left; }
.mock-title { display: flex; justify-content: space-between; align-items: center; margin-bottom: 16px; }
.mock-title strong { font-size: 14px; }
.badge {
  display: inline-flex;
  align-items: center;
  padding: 2px 6px;
  border-radius: var(--radius-badge);
  font-size: 12px;
  font-weight: 500;
  line-height: 1.5;
}
.badge--green { background: rgba(22, 202, 46, 0.1); color: #0f9c24; }
.badge--blue { background: rgba(59, 130, 246, 0.1); color: var(--signal); }
.badge--coral { background: rgba(242, 96, 82, 0.1); color: var(--coral); }
.mock-stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin-bottom: 16px; }
.stat {
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  padding: 12px;
  box-shadow: var(--shadow-card);
  background: #fff;
}
.stat span { display: block; font-size: 10px; color: var(--fog); letter-spacing: 0.13px; text-transform: uppercase; margin-bottom: 6px; }
.stat strong { font-family: "Roboto Mono", "JetBrains Mono", ui-monospace, monospace; font-size: 22px; letter-spacing: -1.2px; color: var(--graphite); font-weight: 500; }
.stat small { font-size: 11px; color: var(--green); margin-left: 4px; font-weight: 500; }
.mock-bars { display: flex; align-items: flex-end; gap: 6px; height: 96px; padding: 10px 4px 0; }
.mock-bars i {
  flex: 1;
  border-radius: 4px 4px 2px 2px;
  background: linear-gradient(180deg, rgba(20, 90, 255, 0.75), rgba(20, 90, 255, 0.18));
}
.mock-bars i:nth-child(3n) { background: linear-gradient(180deg, rgba(20, 90, 255, 0.35), rgba(20, 90, 255, 0.08)); }

/* ---------- 客户 Logo 条 ---------- */
.logo-strip { padding: 36px 0 8px; }
.logo-strip p { text-align: center; font-size: 12px; color: var(--fog); letter-spacing: 0.5px; margin-bottom: 26px; }
.logo-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 24px 40px;
  align-items: center;
}
.logo-grid span {
  text-align: center;
  font-size: 15px;
  font-weight: 600;
  color: var(--mist);
  opacity: 0.7;
  letter-spacing: 0.4px;
  filter: grayscale(1);
}

/* ---------- 通用网格/卡片 ---------- */
.grid { display: grid; gap: 20px; }
.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 {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  padding: 26px;
  box-shadow: var(--shadow-card);
  transition: box-shadow 0.22s ease, transform 0.22s ease, border-color 0.22s ease;
}
.card:hover { box-shadow: var(--shadow-feature); transform: translateY(-3px); border-color: #dde3f2; }
.card h3 { margin-bottom: 10px; }
.card p { color: var(--mist); font-size: 14px; margin-bottom: 14px; }
.card-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: var(--wash);
  display: grid;
  place-items: center;
  margin-bottom: 18px;
}
.card-icon svg { width: 22px; height: 22px; stroke: var(--slate); fill: none; stroke-width: 1.4; stroke-linecap: round; stroke-linejoin: round; }

.feature-card {
  background: var(--canvas);
  border-radius: var(--radius-large);
  padding: 52px 72px;
  box-shadow: var(--shadow-feature);
  border: 1px solid rgba(231, 233, 240, 0.7);
}
.feature-card .mock { box-shadow: 0 20px 50px -45px rgba(2, 5, 32, 0.55); }

/* ---------- 关于我们 ---------- */
.about-grid { display: grid; grid-template-columns: 1.05fr 0.95fr; gap: 56px; align-items: center; }
.about-card {
  background: #fff;
  border-radius: var(--radius-large);
  padding: 34px;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-feature);
}
.fact-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px 24px; }
.fact-list div { border-left: 2px solid var(--wash); padding-left: 14px; }
.fact-list strong { display: block; font-family: "Roboto Mono", ui-monospace, monospace; font-size: 26px; letter-spacing: -1.2px; color: var(--graphite); font-weight: 500; }
.fact-list span { font-size: 12px; color: var(--fog); }

.pill-list { display: flex; flex-wrap: wrap; gap: 10px; }
.pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 14px;
  border-radius: var(--radius-pill);
  background: var(--wash);
  color: var(--slate);
  font-size: 13px;
}

/* ---------- 时间线 ---------- */
.timeline { position: relative; max-width: 880px; margin: 0 auto; }
.timeline::before {
  content: "";
  position: absolute;
  left: 100px;
  top: 8px;
  bottom: 8px;
  width: 1px;
  background: linear-gradient(180deg, rgba(20, 90, 255, 0.35), rgba(20, 90, 255, 0.05));
}
.timeline-item { display: grid; grid-template-columns: 100px 1fr; gap: 28px; padding-bottom: 34px; position: relative; }
.timeline-item:last-child { padding-bottom: 0; }
.timeline-year { font-family: "Roboto Mono", ui-monospace, monospace; font-size: 16px; color: var(--signal); font-weight: 500; text-align: right; padding-top: 2px; }
.timeline-body { position: relative; padding-left: 0; }
.timeline-body::before {
  content: "";
  position: absolute;
  left: -34px;
  top: 8px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--canvas);
  border: 2px solid var(--signal);
  transform: translateX(-4px);
}
.timeline-body h4 { margin-bottom: 6px; }
.timeline-body p { color: var(--mist); font-size: 14px; margin-bottom: 0; }

/* ---------- 团队 ---------- */
.team-card { text-align: center; padding: 26px 20px; }
.avatar {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  margin: 0 auto 16px;
  display: grid;
  place-items: center;
  background: linear-gradient(160deg, #f0f4fe 0%, #dfe8fd 100%);
  color: var(--action);
  font-size: 22px;
  font-weight: 600;
  border: 4px solid #fff;
  box-shadow: var(--shadow-card);
}
.team-card h4 { margin-bottom: 4px; }
.team-card .role { color: var(--signal); font-size: 12px; font-weight: 500; margin-bottom: 8px; }
.team-card p { font-size: 13px; margin-bottom: 0; }

/* ---------- 产品卡片 ---------- */
.product-card { display: flex; flex-direction: column; }
.product-card .link-arrow { margin-top: auto; }
.tag-row { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 14px; }
.tag {
  font-size: 11px;
  padding: 3px 8px;
  border-radius: var(--radius-badge);
  background: var(--wash);
  color: var(--signal);
  font-weight: 500;
}
.product-icon {
  width: 46px; height: 46px; border-radius: 12px; background: var(--wash);
  display: grid; place-items: center; margin-bottom: 18px;
}
.product-icon svg { width: 23px; height: 23px; stroke: var(--graphite); fill: none; stroke-width: 1.4; stroke-linecap: round; stroke-linejoin: round; }

/* ---------- 案例 ---------- */
.case-card { padding: 0; overflow: hidden; display: flex; flex-direction: column; }
.case-visual {
  height: 168px;
  background: linear-gradient(150deg, #f0f4fe 0%, #e3ebfd 100%);
  display: grid;
  place-items: center;
  border-bottom: 1px solid var(--border);
  position: relative;
  overflow: hidden;
}
.case-visual .mock-mini {
  width: 78%;
  background: #fff;
  border-radius: 10px;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-feature);
  padding: 10px;
}
.mock-mini .line { height: 6px; border-radius: 3px; background: #e9edf7; margin-bottom: 6px; }
.mock-mini .line.w60 { width: 60%; }
.mock-mini .line.w40 { width: 40%; background: #dfe7fb; }
.mock-mini .line.blue { background: rgba(20, 90, 255, 0.35); }
.case-body { padding: 24px; display: flex; flex-direction: column; flex: 1; }
.case-body h3 { font-size: 20px; margin-bottom: 8px; }
.case-body p { font-size: 14px; color: var(--mist); }
.case-meta { display: flex; gap: 12px; font-size: 12px; color: var(--fog); margin-bottom: 14px; }
.case-body .link-arrow { margin-top: auto; }

/* ---------- 新闻 ---------- */
.news-card { display: flex; flex-direction: column; }
.news-date { font-family: "Roboto Mono", ui-monospace, monospace; font-size: 12px; color: var(--fog); letter-spacing: -0.2px; display: flex; align-items: center; gap: 8px; margin-bottom: 10px; }
.news-date::before { content: ""; width: 5px; height: 5px; border-radius: 50%; background: var(--signal); }
.news-card h3 { font-size: 18px; line-height: 1.45; margin-bottom: 10px; }
.news-card p { font-size: 14px; color: var(--mist); margin-bottom: 16px; }
.news-card .link-arrow { margin-top: auto; }

/* ---------- CTA 区块 ---------- */
.cta-band {
  background: linear-gradient(135deg, #f0f4fe 0%, #e8eefc 55%, #f7f9ff 100%);
  border-radius: var(--radius-large);
  padding: 56px 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  border: 1px solid rgba(20, 90, 255, 0.08);
}
.cta-band h2 { font-size: 32px; margin-bottom: 8px; }
.cta-band p { margin: 0; color: var(--mist); }

/* ---------- 内页页头 ---------- */
.page-hero {
  padding: 64px 0 48px;
  background:
    radial-gradient(55% 90% at 50% 0%, rgba(182, 203, 253, 0.45) 0%, rgba(240, 244, 254, 0.6) 45%, rgba(252, 252, 252, 0) 80%),
    var(--canvas);
  border-bottom: 1px solid rgba(231, 233, 240, 0.7);
}
.page-hero h1 { font-size: 48px; letter-spacing: -1.6px; margin-bottom: 14px; }
.page-hero p { max-width: 640px; color: var(--mist); font-size: 16px; margin-bottom: 0; }
.breadcrumb { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; font-size: 12px; color: var(--fog); margin-bottom: 20px; }
.breadcrumb a { color: var(--mist); }
.breadcrumb a:hover { color: var(--signal); }
.breadcrumb span { color: #c8cad4; }

/* ---------- 文章正文 ---------- */
.prose { max-width: 780px; }
.prose h2 { font-size: 28px; letter-spacing: -0.5px; margin: 40px 0 14px; }
.prose h3 { font-size: 20px; margin: 30px 0 12px; }
.prose p { color: var(--slate); font-size: 16px; line-height: 1.85; margin-bottom: 18px; }
.prose ul { margin: 0 0 20px; padding-left: 0; }
.prose ul li { position: relative; padding-left: 20px; margin-bottom: 10px; color: var(--slate); font-size: 16px; line-height: 1.8; }
.prose ul li::before { content: ""; position: absolute; left: 2px; top: 11px; width: 5px; height: 5px; border-radius: 50%; background: var(--signal); }
.prose blockquote {
  margin: 24px 0;
  padding: 18px 22px;
  background: var(--wash);
  border-left: 2px solid var(--signal);
  border-radius: 0 var(--radius-card) var(--radius-card) 0;
  color: var(--graphite);
  font-size: 15px;
}
.prose blockquote p { margin: 0; color: inherit; font-size: 15px; }
.prose img { border-radius: var(--radius-image); margin: 24px 0; }
.article-meta { display: flex; flex-wrap: wrap; gap: 16px; color: var(--fog); font-size: 13px; margin-bottom: 24px; padding-bottom: 24px; border-bottom: 1px solid var(--border); }
.article-layout { display: grid; grid-template-columns: 1fr 300px; gap: 56px; align-items: start; }
.article-aside { position: sticky; top: calc(var(--header-h) + 24px); }
.aside-card { background: #fff; border: 1px solid var(--border); border-radius: var(--radius-card); padding: 22px; box-shadow: var(--shadow-card); }
.aside-card h4 { font-size: 14px; margin-bottom: 14px; }
.aside-card ul li { margin-bottom: 10px; font-size: 13px; }
.aside-card ul li a { color: var(--mist); }
.aside-card ul li a:hover { color: var(--signal); }
.aside-card + .aside-card { margin-top: 18px; }

/* ---------- 详情页规格表 ---------- */
.spec-table { width: 100%; border-collapse: collapse; font-size: 14px; }
.spec-table th, .spec-table td { text-align: left; padding: 12px 14px; border-bottom: 1px solid var(--border); }
.spec-table th { color: var(--graphite); font-weight: 500; width: 34%; background: #fcfcfc; }
.spec-table td { color: var(--mist); }

.check-list li { position: relative; padding-left: 24px; margin-bottom: 10px; font-size: 14px; color: var(--slate); }
.check-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 7px;
  width: 10px;
  height: 6px;
  border-left: 1.5px solid var(--signal);
  border-bottom: 1.5px solid var(--signal);
  transform: rotate(-45deg);
}

/* ---------- 表单 ---------- */
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.field { display: flex; flex-direction: column; gap: 7px; margin-bottom: 18px; }
.field.full { grid-column: 1 / -1; }
.field label { font-size: 13px; font-weight: 500; color: var(--graphite); }
.field label .req { color: var(--coral); }
.input, .textarea, select.input {
  width: 100%;
  padding: 15px;
  border-radius: var(--radius-input);
  border: 1px solid #cfcfcf;
  background: #fff;
  color: var(--graphite);
  font-size: 14px;
  font-family: inherit;
  transition: border-color 0.18s ease, box-shadow 0.18s ease;
}
.input::placeholder, .textarea::placeholder { color: var(--fog); }
.input:focus, .textarea:focus {
  outline: none;
  border-color: #0099ff;
  box-shadow: rgba(0, 153, 255, 1) 0px 0px 0px 3px;
}
.textarea { min-height: 140px; resize: vertical; }
.field .error { font-size: 12px; color: var(--coral); display: none; }
.field.has-error .input, .field.has-error .textarea { border-color: var(--coral); }
.field.has-error .error { display: block; }
.form-note { font-size: 12px; color: var(--fog); }
.form-success {
  display: none;
  align-items: flex-start;
  gap: 10px;
  padding: 14px 16px;
  border-radius: var(--radius-input);
  background: rgba(22, 202, 46, 0.08);
  border: 1px solid rgba(22, 202, 46, 0.25);
  color: #0d7d1f;
  font-size: 14px;
  margin-bottom: 18px;
}
.form-success.show { display: flex; }

/* ---------- 联系信息 ---------- */
.contact-grid { display: grid; grid-template-columns: 1fr 1.15fr; gap: 48px; align-items: start; }
.contact-list { display: grid; gap: 20px; }
.contact-item { display: flex; gap: 14px; align-items: flex-start; }
.contact-item .icon {
  width: 40px; height: 40px; border-radius: 11px; background: var(--wash);
  display: grid; place-items: center; flex: none;
}
.contact-item .icon svg { width: 18px; height: 18px; stroke: var(--graphite); fill: none; stroke-width: 1.5; stroke-linecap: round; stroke-linejoin: round; }
.contact-item h4 { font-size: 14px; margin-bottom: 3px; }
.contact-item p, .contact-item a { font-size: 14px; color: var(--mist); margin: 0; }
.contact-item a:hover { color: var(--signal); }
.map-card {
  border-radius: var(--radius-large);
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-card);
  background: #fff;
}
.map-canvas {
  height: 300px;
  background:
    repeating-linear-gradient(0deg, rgba(20, 90, 255, 0.05) 0 1px, transparent 1px 42px),
    repeating-linear-gradient(90deg, rgba(20, 90, 255, 0.05) 0 1px, transparent 1px 42px),
    linear-gradient(135deg, #f4f7ff 0%, #eef3fd 100%);
  position: relative;
}
.map-canvas::before {
  content: "";
  position: absolute; inset: 0;
  background:
    linear-gradient(115deg, transparent 46%, rgba(255,255,255,0.9) 46%, rgba(255,255,255,0.9) 50%, transparent 50%),
    linear-gradient(25deg, transparent 66%, rgba(255,255,255,0.75) 66%, rgba(255,255,255,0.75) 69%, transparent 69%);
}
.map-pin {
  position: absolute;
  left: 52%;
  top: 44%;
  transform: translate(-50%, -100%);
  display: flex;
  flex-direction: column;
  align-items: center;
  z-index: 1;
}
.map-pin .dot {
  width: 30px; height: 30px; border-radius: 50%;
  background: linear-gradient(135deg, #3b82f6, #145aff);
  box-shadow: 0 0 0 6px rgba(20, 90, 255, 0.14), 0 8px 18px -6px rgba(20, 90, 255, 0.7);
  display: grid; place-items: center;
}
.map-pin .dot svg { width: 15px; height: 15px; stroke: #fff; fill: none; stroke-width: 1.8; }
.map-pin .label {
  margin-top: 10px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-pill);
  padding: 5px 14px;
  font-size: 12px;
  color: var(--graphite);
  box-shadow: var(--shadow-card);
  white-space: nowrap;
}
.map-foot { padding: 16px 20px; display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; font-size: 12px; color: var(--mist); border-top: 1px solid var(--border); }

/* ---------- FAQ ---------- */
.faq-item { border-bottom: 1px solid var(--border); padding: 6px 0; }
.faq-item summary {
  list-style: none;
  cursor: pointer;
  padding: 18px 34px 18px 0;
  position: relative;
  font-size: 16px;
  font-weight: 500;
  color: var(--graphite);
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: "";
  position: absolute; right: 6px; top: 50%;
  width: 8px; height: 8px;
  border-right: 1.5px solid var(--mist);
  border-bottom: 1.5px solid var(--mist);
  transform: translateY(-70%) rotate(45deg);
  transition: transform 0.2s ease;
}
.faq-item[open] summary::after { transform: translateY(-30%) rotate(-135deg); }
.faq-item p { font-size: 14px; color: var(--mist); padding-right: 30px; margin-bottom: 18px; }

/* ---------- 页脚 ---------- */
.site-footer { background: #020520; color: #a9b2c7; padding: 64px 0 28px; }
.footer-top { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 40px; padding-bottom: 40px; border-bottom: 1px solid rgba(255, 255, 255, 0.08); }
.site-footer .brand-text { color: #fff; }
.site-footer .brand-sub { color: #6b7ba0; }
.footer-desc { font-size: 13px; line-height: 1.8; color: #8d97ad; margin: 18px 0 20px; max-width: 300px; }
.social-links { display: flex; gap: 10px; }
.social-links a {
  width: 34px; height: 34px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.14);
  display: grid; place-items: center;
  transition: background-color 0.18s ease, border-color 0.18s ease;
}
.social-links a:hover { background: rgba(20, 90, 255, 0.25); border-color: rgba(20, 90, 255, 0.5); }
.social-links svg { width: 15px; height: 15px; stroke: #c8d2e6; fill: none; stroke-width: 1.5; stroke-linecap: round; stroke-linejoin: round; }
.footer-col h4 { color: #fff; font-size: 13px; font-weight: 500; margin-bottom: 16px; letter-spacing: 0.2px; }
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul li a, .footer-col ul li span { font-size: 13px; color: #8d97ad; transition: color 0.18s ease; }
.footer-col ul li a:hover { color: #fff; }
.footer-bottom { display: flex; justify-content: space-between; align-items: center; gap: 16px; flex-wrap: wrap; padding-top: 24px; font-size: 12px; color: #6b7ba0; }
.footer-bottom a:hover { color: #fff; }
.footer-links { display: flex; gap: 20px; flex-wrap: wrap; }

/* ---------- 动画 ---------- */
.reveal { opacity: 0; transform: translateY(18px); transition: opacity 0.6s ease, transform 0.6s ease; }
.reveal.is-visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
}

/* ---------- 响应式 ---------- */
@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .about-grid, .contact-grid, .article-layout { grid-template-columns: 1fr; gap: 36px; }
  .article-aside { position: static; }
  .feature-card { padding: 38px 32px; }
  .cta-band { padding: 44px 36px; }
  .footer-top { grid-template-columns: 1.4fr 1fr 1fr; }
  .mock-body { grid-template-columns: 160px 1fr; }
}

@media (max-width: 860px) {
  :root { --section-y: 64px; }
  .main-nav {
    position: fixed;
    inset: var(--header-h) 0 auto 0;
    flex-direction: column;
    align-items: stretch;
    gap: 2px;
    padding: 12px 20px 20px;
    background: rgba(252, 252, 252, 0.98);
    backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--border);
    transform: translateY(-12px);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s ease, transform 0.2s ease;
  }
  body.nav-open .main-nav { opacity: 1; transform: none; pointer-events: auto; }
  .main-nav a { padding: 12px 16px; font-size: 15px; }
  .nav-toggle { display: grid; }
  .header-actions .btn { display: none; }
  .grid-3, .grid-2 { grid-template-columns: 1fr; }
  .hero { padding: 56px 0 48px; min-height: auto; }
  .hero h1 { letter-spacing: -1.5px; }
  .hero-shot { margin-top: 34px; }
  .logo-grid { grid-template-columns: repeat(3, 1fr); }
  .page-hero h1 { font-size: 34px; letter-spacing: -1px; }
  .feature-card { border-radius: 24px; padding: 28px 20px; }
  .timeline::before { left: 12px; }
  .timeline-item { grid-template-columns: 1fr; gap: 6px; padding-left: 34px; }
  .timeline-year { text-align: left; }
  .timeline-body::before { left: -28px; top: 6px; }
  .cta-band { flex-direction: column; align-items: flex-start; padding: 32px 24px; }
  .form-grid { grid-template-columns: 1fr; }
  .footer-top { grid-template-columns: 1fr 1fr; gap: 28px; }
  .site-footer { padding-top: 48px; }
  .mock-body { grid-template-columns: 1fr; }
  .mock-side { display: none; }
  .mock-stats { grid-template-columns: repeat(2, 1fr); }
  .mock-main { padding: 14px; }
  .mock-url { font-size: 10px; }
}

@media (max-width: 560px) {
  .container { padding: 0 18px; }
  h1 { font-size: 34px; letter-spacing: -1px; }
  h2 { font-size: 28px; letter-spacing: -0.6px; }
  .grid-4 { grid-template-columns: 1fr; }
  .fact-list { grid-template-columns: 1fr 1fr; gap: 14px; }
  .footer-top { grid-template-columns: 1fr; }
  .hero-meta { gap: 14px 20px; }
  .section-head { margin-bottom: 32px; }
  .card { padding: 22px; }
  .logo-grid { grid-template-columns: repeat(2, 1fr); gap: 18px; }
  .cta-band h2 { font-size: 26px; }
  .hero h1 em { display: inline; }
}

/* ---------- 联系页补充 ---------- */
.form-card { padding: 32px; }
.form-card:hover { transform: none; box-shadow: var(--shadow-feature); }
.consent-field { flex-direction: row; align-items: flex-start; gap: 10px; }
.consent-field input[type="checkbox"] { width: 16px; height: 16px; margin-top: 2px; accent-color: var(--signal); flex: none; }
.consent-field label { font-weight: 400; color: var(--mist); line-height: 1.65; }
.consent-field label a { color: var(--signal); }
.social-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.social-item {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  padding: 26px;
  box-shadow: var(--shadow-card);
  transition: box-shadow 0.22s ease, transform 0.22s ease;
}
.social-item:hover { box-shadow: var(--shadow-feature); transform: translateY(-3px); }
.social-item .icon {
  width: 42px; height: 42px; border-radius: 12px; background: var(--wash);
  display: grid; place-items: center; margin-bottom: 16px;
}
.social-item .icon svg { width: 20px; height: 20px; stroke: var(--graphite); fill: none; stroke-width: 1.5; stroke-linecap: round; stroke-linejoin: round; }
.social-item h3 { font-size: 15px; margin-bottom: 6px; }
.social-item p { font-size: 13px; color: var(--mist); margin: 0 0 10px; }
.social-item .handle { font-size: 12px; color: var(--signal); font-weight: 500; }
@media (max-width: 1024px) { .social-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .social-grid { grid-template-columns: 1fr; } .form-card { padding: 22px; } }