/* ============================================================
   武汉墨氪科技 — Design System v2
   Style: Trust & Authority / Enterprise Gateway
   ============================================================ */

:root {
  /* 色彩 */
  --ink: #0a1120;
  --ink-2: #2b3648;
  --ink-3: #667085;
  --ink-4: #98a2b3;
  --bg: #ffffff;
  --soft: #f5f7fb;
  --soft-2: #eef2f9;
  --line: #e4e9f2;
  --line-2: #d3dbe8;

  --brand: #2563eb;
  --brand-dark: #1d4ed8;
  --brand-2: #0ea5e9;
  --accent: #22d3ee;
  --brand-soft: #eef4ff;

  --dark: #070d1a;
  --dark-2: #0c1526;

  /* 形状与阴影 */
  --r-sm: 10px;
  --r-md: 14px;
  --r-lg: 20px;
  --r-xl: 28px;
  --sh-xs: 0 1px 2px rgba(10,17,32,.05);
  --sh-sm: 0 2px 8px rgba(10,17,32,.06), 0 8px 24px rgba(10,17,32,.04);
  --sh-md: 0 8px 24px rgba(10,17,32,.08), 0 24px 64px rgba(10,17,32,.06);
  --sh-lg: 0 24px 80px rgba(10,17,32,.14);

  --container: 1200px;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
          "Hiragino Sans GB", "Microsoft YaHei", "Source Han Sans SC",
          "Noto Sans CJK SC", sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

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

body {
  font-family: var(--font);
  font-size: 16.5px;
  line-height: 1.75;
  color: var(--ink-2);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img, svg { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
::selection { background: rgba(37,99,235,.16); }

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

/* ---------- 通用文字 ---------- */
h1, h2, h3, h4 { color: var(--ink); letter-spacing: -.02em; line-height: 1.2; }

.eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  font-size: 12.5px; font-weight: 700; letter-spacing: .14em;
  text-transform: uppercase; color: var(--brand);
}
.eyebrow::before { content: ""; width: 24px; height: 2px; background: var(--brand); border-radius: 2px; }

.section-label { display: inline-block; font-size: 12.5px; font-weight: 700; letter-spacing: .14em; text-transform: uppercase; color: var(--brand); margin-bottom: 16px; }

.section { padding: 118px 0; }
.section-sm { padding: 80px 0; }
.section-soft { background: var(--soft); }
.section-dark { background: var(--dark); color: #aebbd0; }
.section-dark h2, .section-dark h3, .section-dark h4 { color: #fff; }

.section-head { max-width: 720px; margin-bottom: 56px; }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.section-head h2 { font-size: clamp(30px, 3.4vw, 44px); font-weight: 800; letter-spacing: -.03em; }
.section-sub { margin-top: 18px; font-size: 17px; color: var(--ink-3); line-height: 1.8; }

/* ---------- 顶部导航 ---------- */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255,255,255,.86);
  backdrop-filter: saturate(180%) blur(16px);
  -webkit-backdrop-filter: saturate(180%) blur(16px);
  border-bottom: 1px solid transparent;
  transition: border-color .25s, box-shadow .25s, background .25s;
}
.site-header.is-scrolled { border-bottom-color: var(--line); box-shadow: 0 8px 30px rgba(10,17,32,.06); }

.nav { display: flex; align-items: center; justify-content: space-between; height: 78px; }
.logo { display: flex; align-items: center; gap: 10px; font-weight: 700; }
.logo-img { height: 44px; width: auto; display: block; }
.logo-mark {
  width: 36px; height: 36px; border-radius: 11px;
  background: linear-gradient(135deg, var(--brand-dark), var(--brand-2) 60%, var(--accent));
  display: grid; place-items: center; color: #fff; font-size: 15px; font-weight: 800;
  box-shadow: 0 6px 18px rgba(37,99,235,.3);
}

.nav-links { display: flex; align-items: center; gap: 4px; }
.nav-links a {
  padding: 9px 15px; border-radius: 9px; font-size: 15px; color: var(--ink-2);
  transition: background .2s, color .2s; white-space: nowrap;
}
.nav-links a:hover { background: var(--soft); color: var(--ink); }
.nav-links a.is-active { color: var(--brand); background: var(--brand-soft); font-weight: 600; }

.nav-cta {
  margin-left: 10px; padding: 11px 20px !important; border-radius: 11px !important;
  background: var(--ink) !important; color: #fff !important; font-weight: 600;
  box-shadow: 0 6px 18px rgba(10,17,32,.18);
  transition: transform .2s, background .2s, box-shadow .2s;
}
.nav-cta:hover { background: var(--brand) !important; transform: translateY(-1px); box-shadow: 0 10px 26px rgba(37,99,235,.32); }

.nav-toggle { display: none; background: none; border: 0; cursor: pointer; padding: 10px; }
.nav-toggle span { display: block; width: 22px; height: 2px; background: var(--ink); margin: 5px 0; border-radius: 2px; transition: .25s; }

/* ---------- Hero ---------- */
.hero {
  position: relative; overflow: hidden; color: #fff;
  background:
    radial-gradient(1100px 620px at 82% -12%, rgba(34,211,238,.20), transparent 62%),
    radial-gradient(900px 560px at 6% 6%, rgba(37,99,235,.42), transparent 62%),
    linear-gradient(165deg, #050a14 0%, #0a1120 46%, #0c1930 100%);
  padding: 96px 0 110px;
}
.hero::before {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background-image:
    linear-gradient(rgba(255,255,255,.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.05) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse 85% 65% at 50% 34%, #000 24%, transparent 74%);
  -webkit-mask-image: radial-gradient(ellipse 85% 65% at 50% 34%, #000 24%, transparent 74%);
}
.hero::after {
  content: ""; position: absolute; left: 50%; bottom: -320px; width: 900px; height: 520px;
  transform: translateX(-50%); pointer-events: none;
  background: radial-gradient(closest-side, rgba(37,99,235,.25), transparent 70%);
}
.hero .container { position: relative; z-index: 2; }

.hero-grid { display: grid; grid-template-columns: 1.02fr .98fr; gap: 60px; align-items: center; }

.hero-badge {
  display: inline-flex; align-items: center; gap: 9px;
  padding: 7px 14px 7px 8px; border-radius: 100px;
  background: rgba(255,255,255,.06); border: 1px solid rgba(255,255,255,.12);
  font-size: 13px; color: #cbd5e1; margin-bottom: 26px;
}
.hero-badge b { display: inline-flex; align-items: center; gap: 6px; padding: 3px 10px; border-radius: 100px; background: rgba(34,211,238,.14); color: var(--accent); font-size: 11.5px; letter-spacing: .04em; }

.hero h1 {
  font-size: clamp(38px, 4.6vw, 62px); font-weight: 800; line-height: 1.14;
  letter-spacing: -.035em; color: #fff;
}
.hero h1 em {
  font-style: normal;
  background: linear-gradient(96deg, #7dd3fc 0%, #38bdf8 40%, #a5b4fc 100%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero-lead { margin-top: 26px; font-size: 17.5px; line-height: 1.85; color: #a9b7cd; max-width: 540px; }

.hero-actions { margin-top: 36px; display: flex; gap: 14px; flex-wrap: wrap; }
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 9px;
  padding: 14px 28px; border-radius: 12px; font-weight: 600; font-size: 15.5px;
  border: 1px solid transparent; cursor: pointer;
  transition: transform .2s ease, box-shadow .2s ease, background .2s ease, border-color .2s;
}
.btn:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }
.btn:hover { transform: translateY(-2px); }
.btn-primary {
  background: linear-gradient(135deg, var(--brand-dark) 0%, var(--brand-2) 100%);
  color: #fff; box-shadow: 0 12px 30px rgba(37,99,235,.36);
}
.btn-primary:hover { box-shadow: 0 18px 40px rgba(37,99,235,.46); }
.btn-ghost { border-color: rgba(255,255,255,.22); color: #e2e8f0; background: rgba(255,255,255,.04); }
.btn-ghost:hover { background: rgba(255,255,255,.09); border-color: rgba(255,255,255,.34); }
.btn-light { background: #fff; color: var(--ink); box-shadow: 0 12px 30px rgba(0,0,0,.18); }
.btn .arrow { transition: transform .2s; }
.btn:hover .arrow { transform: translateX(4px); }

.hero-meta { margin-top: 34px; display: flex; gap: 26px; flex-wrap: wrap; font-size: 13.5px; color: #8496b3; }
.hero-meta span { display: inline-flex; align-items: center; gap: 8px; }
.dot { width: 6px; height: 6px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 4px rgba(34,211,238,.14); }

/* Hero 视觉 */
.hero-visual { position: relative; }
.hero-shot {
  position: relative; border-radius: var(--r-xl); overflow: hidden;
  border: 1px solid rgba(255,255,255,.12);
  box-shadow: 0 40px 100px rgba(0,0,0,.5), 0 0 0 1px rgba(255,255,255,.04) inset;
  background: #0a1120;
}
.hero-shot img { width: 100%; height: auto; display: block; aspect-ratio: 16/11; object-fit: cover; }
.hero-shot::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(180deg, transparent 55%, rgba(5,10,20,.55) 100%);
}
.hero-float {
  position: absolute; display: flex; align-items: center; gap: 12px;
  padding: 14px 18px; border-radius: 14px;
  background: rgba(12,21,38,.86); border: 1px solid rgba(255,255,255,.12);
  backdrop-filter: blur(12px); box-shadow: 0 18px 40px rgba(0,0,0,.4);
  font-size: 13px; color: #cbd5e1;
}
.hero-float b { display: block; color: #fff; font-size: 15px; font-weight: 700; letter-spacing: -.01em; }
.hero-float small { display: block; color: #7f90ab; font-size: 11.5px; }
.hero-float.f1 { left: -26px; top: 14%; }
.hero-float.f2 { right: -18px; bottom: 12%; }
.hero-float .pulse { width: 9px; height: 9px; border-radius: 50%; background: #34d399; box-shadow: 0 0 0 4px rgba(52,211,153,.18); flex: none; }

/* ---------- 信任条 ---------- */
.trust {
  background: #050a14;
  border-top: 1px solid rgba(255,255,255,.06);
  position: relative; z-index: 2;
}
.trust-inner { display: grid; grid-template-columns: repeat(4, 1fr); padding: 26px 0; }
.trust-item { padding: 6px 26px; border-left: 1px solid rgba(255,255,255,.08); }
.trust-item:first-child { border-left: 0; padding-left: 0; }
.trust-item b { display: block; font-size: 20px; font-weight: 800; color: #fff; letter-spacing: -.02em; }
.trust-item span { display: block; margin-top: 3px; font-size: 13px; color: #8496b3; }

/* ---------- 徽标 ---------- */
.chip {
  display: inline-flex; align-items: center; gap: 7px;
  padding: 7px 13px; border-radius: 100px;
  background: var(--soft); border: 1px solid var(--line);
  font-size: 13px; color: var(--ink-2); font-weight: 500;
}

/* ---------- 服务矩阵 Bento ---------- */
.bento { display: grid; grid-template-columns: repeat(6, 1fr); gap: 20px; }
.bento .b-card {
  grid-column: span 2;
  position: relative; overflow: hidden;
  background: #fff; border: 1px solid var(--line); border-radius: var(--r-lg);
  padding: 32px 30px; box-shadow: var(--sh-sm);
  transition: transform .28s cubic-bezier(.2,.7,.3,1), box-shadow .28s, border-color .28s;
  display: flex; flex-direction: column;
}
.bento .b-card:hover { transform: translateY(-5px); box-shadow: var(--sh-md); border-color: var(--line-2); }
.bento .b-wide { grid-column: span 3; }
.b-card .b-icon {
  width: 48px; height: 48px; border-radius: 14px; display: grid; place-items: center;
  background: linear-gradient(140deg, var(--brand-soft), #e0f2fe);
  color: var(--brand); margin-bottom: 22px;
}
.b-card .b-icon svg { width: 24px; height: 24px; }
.b-card h3 { font-size: 20px; font-weight: 750; margin-bottom: 10px; }
.b-card p { font-size: 15px; color: var(--ink-3); flex: 1; }
.b-card ul { margin-top: 16px; display: grid; gap: 8px; }
.b-card ul li { position: relative; padding-left: 18px; font-size: 14px; color: var(--ink-2); }
.b-card ul li::before { content: ""; position: absolute; left: 2px; top: 9px; width: 5px; height: 5px; border-radius: 50%; background: var(--brand); }
.b-card .b-link { margin-top: 20px; font-size: 14.5px; font-weight: 600; color: var(--brand); display: inline-flex; align-items: center; gap: 6px; }
.b-card .b-link::after { content: "→"; transition: transform .2s; }
.b-card:hover .b-link::after { transform: translateX(4px); }

.b-card.dark { background: linear-gradient(155deg, #0b1220 0%, #132a5e 100%); border-color: #16264a; color: #fff; }
.b-card.dark h3 { color: #fff; }
.b-card.dark p { color: #a9b7cd; }
.b-card.dark .b-icon { background: rgba(34,211,238,.14); color: var(--accent); }
.b-card.dark .b-link { color: var(--accent); }

.b-card.visual { padding: 0; }
.b-card.visual img { width: 100%; height: 100%; object-fit: cover; min-height: 260px; }
.b-card.visual .b-overlay { position: absolute; inset: auto 0 0 0; padding: 26px; background: linear-gradient(180deg, transparent, rgba(5,10,20,.88) 62%); color: #fff; }
.b-card.visual .b-overlay h3 { color: #fff; font-size: 19px; }
.b-card.visual .b-overlay p { color: #b9c4d8; font-size: 14px; }

/* ---------- 数据带 ---------- */
.stats-band { background: var(--dark); position: relative; overflow: hidden; }
.stats-band::before { content: ""; position: absolute; inset: 0; background: radial-gradient(800px 300px at 20% 0%, rgba(37,99,235,.22), transparent 70%); }
.stats-grid { position: relative; display: grid; grid-template-columns: repeat(4,1fr); }
.stat-b { padding: 56px 30px; border-left: 1px solid rgba(255,255,255,.08); }
.stat-b:first-child { border-left: 0; }
.stat-b b { display: block; font-size: 44px; font-weight: 800; letter-spacing: -.04em; color: #fff; line-height: 1; }
.stat-b b small { font-size: 17px; font-weight: 600; color: var(--accent); margin-left: 4px; letter-spacing: 0; }
.stat-b span { display: block; margin-top: 12px; font-size: 14px; color: #93a3bd; }

/* ---------- 方法论 ---------- */
.principles { display: grid; grid-template-columns: repeat(3,1fr); gap: 22px; }
.pr { padding: 34px 30px; background: #fff; border: 1px solid var(--line); border-radius: var(--r-lg); box-shadow: var(--sh-xs); }
.pr .num { font-size: 13px; font-weight: 800; color: var(--brand); letter-spacing: .1em; }
.pr h3 { margin: 16px 0 10px; font-size: 19px; }
.pr p { color: var(--ink-3); font-size: 14.5px; }

/* ---------- 流程时间线 ---------- */
.timeline { display: grid; grid-template-columns: repeat(4,1fr); margin-top: 24px; }
.tl-item { position: relative; padding: 0 26px 0 0; }
.tl-item::before { content: ""; position: absolute; left: 0; top: 19px; width: 100%; height: 2px; background: var(--line-2); }
.tl-item:last-child::before { background: linear-gradient(90deg, var(--line-2), transparent); }
.tl-dot {
  position: relative; z-index: 1; width: 40px; height: 40px; border-radius: 50%;
  background: #fff; border: 2px solid var(--brand);
  display: grid; place-items: center; font-size: 14px; font-weight: 800; color: var(--brand);
  box-shadow: 0 0 0 6px rgba(37,99,235,.08);
}
.tl-item h3 { margin: 22px 0 8px; font-size: 18px; }
.tl-item p { font-size: 14.5px; color: var(--ink-3); }

/* ---------- 场景卡 ---------- */
.scene-grid { display: grid; grid-template-columns: repeat(2,1fr); gap: 20px; }
.scene {
  display: flex; gap: 20px; padding: 28px;
  background: #fff; border: 1px solid var(--line); border-radius: var(--r-lg);
  box-shadow: var(--sh-xs); transition: border-color .25s, box-shadow .25s, transform .25s;
}
.scene:hover { border-color: var(--line-2); box-shadow: var(--sh-sm); transform: translateY(-3px); }
.scene .s-ico { flex: none; width: 44px; height: 44px; border-radius: 12px; background: var(--brand-soft); color: var(--brand); display: grid; place-items: center; }
.scene h3 { font-size: 17px; margin-bottom: 6px; }
.scene p { font-size: 14.5px; color: var(--ink-3); }

/* ---------- 技术栈 ---------- */
.tech { display: flex; flex-wrap: wrap; gap: 12px; }
.tech span {
  padding: 10px 18px; border-radius: 12px;
  background: rgba(255,255,255,.04); border: 1px solid rgba(255,255,255,.1);
  color: #cbd5e1; font-size: 14px; font-weight: 500;
  transition: background .2s, border-color .2s;
}
.tech span:hover { background: rgba(34,211,238,.1); border-color: rgba(34,211,238,.3); color: #fff; }

/* ---------- 通用卡片 ---------- */
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; }

.card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--r-lg);
  padding: 32px 30px; box-shadow: var(--sh-sm);
  transition: transform .25s, box-shadow .25s, border-color .25s;
  display: flex; flex-direction: column; height: 100%;
}
.card:hover { transform: translateY(-4px); box-shadow: var(--sh-md); border-color: var(--line-2); }
.card-icon {
  width: 48px; height: 48px; border-radius: 14px; display: grid; place-items: center;
  background: linear-gradient(140deg, var(--brand-soft), #e0f2fe);
  color: var(--brand); margin-bottom: 22px;
}
.card-icon svg { width: 24px; height: 24px; }
.card h3 { font-size: 19.5px; font-weight: 750; margin-bottom: 10px; }
.card p { color: var(--ink-3); font-size: 15px; flex: 1; }
.card-link { margin-top: 20px; font-size: 14.5px; font-weight: 600; color: var(--brand); display: inline-flex; align-items: center; gap: 6px; }
.card-link::after { content: "→"; transition: transform .2s; }
.card:hover .card-link::after { transform: translateX(4px); }

/* ---------- 特性列表 ---------- */
.feature { display: flex; gap: 18px; padding: 24px 0; border-bottom: 1px dashed var(--line); }
.feature:last-child { border-bottom: 0; }
.feature .num { flex: none; font-size: 13px; font-weight: 800; color: var(--brand); width: 36px; padding-top: 4px; }
.feature h4 { font-size: 17px; font-weight: 700; margin-bottom: 6px; }
.feature p { color: var(--ink-3); font-size: 14.5px; }

/* ---------- 步骤 ---------- */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; counter-reset: step; }
.step { position: relative; background: #fff; border: 1px solid var(--line); border-radius: var(--r-md); padding: 26px 22px; box-shadow: var(--sh-xs); }
.step::before { counter-increment: step; content: "0" counter(step); display: block; font-size: 12px; font-weight: 800; color: var(--brand); letter-spacing: .1em; margin-bottom: 12px; }
.step h4 { font-size: 16px; font-weight: 700; margin-bottom: 8px; }
.step p { font-size: 14px; color: var(--ink-3); }

/* ---------- FAQ ---------- */
.faq { max-width: 880px; margin: 0 auto; }
.faq details {
  background: #fff; border: 1px solid var(--line); border-radius: var(--r-md);
  padding: 22px 26px; margin-bottom: 12px; box-shadow: var(--sh-xs);
  transition: border-color .2s, box-shadow .2s;
}
.faq details[open] { border-color: var(--line-2); box-shadow: var(--sh-sm); }
.faq summary { cursor: pointer; font-weight: 650; font-size: 16.5px; color: var(--ink); list-style: none; display: flex; justify-content: space-between; gap: 16px; align-items: center; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; font-size: 22px; color: var(--ink-3); line-height: 1; transition: transform .2s; flex: none; }
.faq details[open] summary::after { transform: rotate(45deg); }
.faq details p { margin-top: 14px; color: var(--ink-3); font-size: 15px; }

/* ---------- CTA ---------- */
.cta {
  position: relative; overflow: hidden; color: #fff; border-radius: var(--r-xl);
  background: linear-gradient(135deg, #070d1a 0%, #12265a 52%, #0b4a70 100%);
  padding: 68px 60px; display: flex; align-items: center; justify-content: space-between; gap: 40px;
  box-shadow: 0 30px 80px rgba(10,17,32,.26);
}
.cta::before { content: ""; position: absolute; width: 500px; height: 500px; border-radius: 50%; background: radial-gradient(circle, rgba(34,211,238,.26), transparent 66%); top: -220px; right: -100px; }
.cta::after {
  content: ""; position: absolute; inset: 0; opacity: .5;
  background-image:
    linear-gradient(rgba(255,255,255,.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.05) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse 60% 100% at 80% 50%, #000, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse 60% 100% at 80% 50%, #000, transparent 70%);
}
.cta > * { position: relative; z-index: 1; }
.cta h2 { font-size: clamp(26px, 2.8vw, 36px); font-weight: 800; letter-spacing: -.03em; color: #fff; }
.cta p { margin-top: 14px; color: #a9b7cd; max-width: 540px; font-size: 15.5px; }
.cta .btn { flex: none; }

/* ---------- 页脚 ---------- */
.site-footer { background: #050a14; color: #8496b3; padding: 76px 0 30px; }
.footer-grid { display: grid; grid-template-columns: 1.7fr 1fr 1fr 1.25fr; gap: 44px; padding-bottom: 50px; border-bottom: 1px solid rgba(255,255,255,.08); }
.site-footer .logo { color: #fff; }
.footer-desc { margin-top: 18px; font-size: 14px; line-height: 1.9; color: #7b8aa3; max-width: 330px; }
.footer-col h4 { color: #cbd5e1; font-size: 14px; font-weight: 700; margin-bottom: 18px; letter-spacing: .02em; }
.footer-col li { margin-bottom: 12px; font-size: 14px; }
.footer-col a { transition: color .2s; }
.footer-col a:hover { color: #fff; }
.footer-bottom { padding-top: 26px; display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; font-size: 13px; color: #64748b; }
.footer-bottom a { color: #94a3b8; }
.footer-bottom a:hover { color: #fff; }

/* ---------- 内页 Hero ---------- */
.page-hero {
  position: relative; color: #fff; padding: 92px 0 80px; overflow: hidden;
  background:
    radial-gradient(760px 400px at 84% -8%, rgba(34,211,238,.18), transparent 62%),
    linear-gradient(152deg, #050a14, #0b1526 62%, #0d1d38);
}
.page-hero::after {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background-image:
    linear-gradient(rgba(255,255,255,.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.04) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse 70% 90% at 20% 0%, #000, transparent 72%);
  -webkit-mask-image: radial-gradient(ellipse 70% 90% at 20% 0%, #000, transparent 72%);
}
.page-hero .container { position: relative; z-index: 1; }
.page-hero h1 { font-size: clamp(32px, 3.8vw, 50px); font-weight: 800; letter-spacing: -.035em; color: #fff; line-height: 1.18; }
.page-hero p { margin-top: 20px; color: #a9b7cd; font-size: 17px; max-width: 660px; line-height: 1.8; }
.breadcrumb { font-size: 13px; color: #8595b0; margin-bottom: 20px; display: flex; gap: 9px; flex-wrap: wrap; }
.breadcrumb a { color: #b8c4d8; }
.breadcrumb a:hover { color: #fff; }

/* ---------- 正文 ---------- */
.prose { max-width: 860px; }
.prose h2 { font-size: 28px; margin: 48px 0 16px; letter-spacing: -.03em; }
.prose h3 { font-size: 19.5px; margin: 32px 0 10px; }
.prose p { color: var(--ink-2); margin-bottom: 16px; font-size: 16px; line-height: 1.9; }
.prose ul { margin: 0 0 20px 0; display: grid; gap: 11px; }
.prose ul li { position: relative; padding-left: 24px; color: var(--ink-2); font-size: 15.5px; }
.prose ul li::before { content: ""; position: absolute; left: 5px; top: 11px; width: 7px; height: 7px; border-radius: 2px; background: var(--brand); transform: rotate(45deg); }
.prose img { width: 100%; height: auto; border-radius: var(--r-md); margin: 32px 0 10px; box-shadow: var(--sh-md); }
.prose figure { margin: 32px 0 28px; }
.prose figure img { margin: 0 0 10px; }
.prose figcaption { font-size: 13.5px; color: var(--ink-3); text-align: center; }
.prose blockquote {
  margin: 28px 0; padding: 20px 24px; border-left: 3px solid var(--brand);
  background: var(--brand-soft); border-radius: 0 14px 14px 0;
  color: var(--ink-2); font-size: 15.5px; line-height: 1.85;
}
.prose table { width: 100%; border-collapse: collapse; margin: 24px 0; font-size: 14.5px; }
.prose th, .prose td { border: 1px solid var(--line); padding: 12px 15px; text-align: left; }
.prose th { background: var(--soft); font-weight: 650; }
.prose code { background: var(--soft-2); padding: 2px 6px; border-radius: 5px; font-size: .9em; }

/* ---------- 配图区块 ---------- */
.section-figure { padding-top: 72px; padding-bottom: 0; }
.figure-hero { margin: 0 auto 24px; max-width: 980px; }
.figure-hero img, .figure-grid img {
  width: 100%; height: auto; display: block;
  aspect-ratio: 16 / 9; object-fit: cover;
  border-radius: var(--r-lg); box-shadow: var(--sh-md); background: var(--dark);
}
.figure-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; }
figure { margin: 0; }
figure figcaption { margin-top: 10px; font-size: 13.5px; color: var(--ink-3); text-align: center; }

/* ---------- 洞察列表 ---------- */
.post-list { display: grid; gap: 20px; }
.post-card {
  display: grid; grid-template-columns: 280px 1fr; gap: 28px; align-items: center;
  background: #fff; border: 1px solid var(--line); border-radius: var(--r-lg);
  padding: 18px; box-shadow: var(--sh-sm);
  transition: transform .25s, box-shadow .25s, border-color .25s;
}
.post-card:hover { transform: translateY(-4px); box-shadow: var(--sh-md); border-color: var(--line-2); }
.post-card img { width: 100%; aspect-ratio: 16/9; object-fit: cover; border-radius: 12px; display: block; }
.post-card h3 { font-size: 20px; font-weight: 750; margin-bottom: 8px; letter-spacing: -.02em; }
.post-card p { color: var(--ink-3); font-size: 15px; }
.post-card .date { margin-top: 12px; font-size: 13px; color: var(--ink-4); }

/* ---------- 联系页 ---------- */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.info-card { background: #fff; border: 1px solid var(--line); border-radius: var(--r-lg); padding: 32px; box-shadow: var(--sh-sm); }
.info-card h3 { font-size: 18px; font-weight: 750; margin-bottom: 16px; }
.info-row { display: flex; gap: 14px; padding: 14px 0; border-bottom: 1px dashed var(--line); font-size: 15px; }
.info-row:last-child { border-bottom: 0; }
.info-row b { flex: none; width: 84px; color: var(--ink-3); font-weight: 500; }

/* ---------- 文章元信息 ---------- */
.article { max-width: 860px; margin: 0 auto; }
.article-meta { display: flex; flex-wrap: wrap; gap: 16px; margin-top: 18px; font-size: 13.5px; color: #8595b0; }
.article-meta span { display: inline-flex; align-items: center; gap: 6px; }

/* ---------- 动效 ---------- */
@media (prefers-reduced-motion: no-preference) {
  .hero h1, .hero-lead, .hero-actions, .hero-meta, .hero-visual { animation: rise .7s cubic-bezier(.2,.7,.3,1) both; }
  .hero-lead { animation-delay: .08s; }
  .hero-actions { animation-delay: .16s; }
  .hero-meta { animation-delay: .22s; }
  .hero-visual { animation-delay: .12s; }
  @keyframes rise { from { opacity: 0; transform: translateY(18px); } to { opacity: 1; transform: none; } }

  .reveal { opacity: 0; transform: translateY(22px); transition: opacity .6s ease, transform .6s cubic-bezier(.2,.7,.3,1); }
  .reveal.in { opacity: 1; transform: none; }
}
@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
  html { scroll-behavior: auto; }
}

/* ---------- 响应式 ---------- */
@media (max-width: 1080px) {
  .hero-grid { grid-template-columns: 1fr; gap: 48px; }
  .hero-visual { max-width: 620px; }
  .bento { grid-template-columns: repeat(2, 1fr); }
  .bento .b-card, .bento .b-wide { grid-column: span 1; }
  .principles, .scene-grid { grid-template-columns: 1fr 1fr; }
  .timeline { grid-template-columns: 1fr 1fr; row-gap: 40px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 860px) {
  .grid-3, .grid-2, .steps, .stats-grid { grid-template-columns: 1fr 1fr; }
  .trust-inner { grid-template-columns: 1fr 1fr; row-gap: 18px; }
  .trust-item:nth-child(3) { border-left: 0; padding-left: 0; }
  .contact-grid { grid-template-columns: 1fr; }
  .cta { flex-direction: column; align-items: flex-start; padding: 48px 34px; }
}

@media (max-width: 720px) {
  body { font-size: 16px; }
  .section { padding: 76px 0; }
  .container { padding: 0 20px; }
  .nav-links {
    position: absolute; top: 78px; left: 0; right: 0;
    flex-direction: column; align-items: stretch; gap: 2px;
    background: #fff; border-bottom: 1px solid var(--line);
    padding: 14px 20px 22px; box-shadow: 0 18px 36px rgba(10,17,32,.1);
    display: none;
  }
  .nav-links.is-open { display: flex; }
  .nav-links a { padding: 13px 14px; font-size: 15.5px; }
  .nav-cta { margin-left: 0; text-align: center; }
  .nav-toggle { display: block; }
  .hero { padding: 64px 0 72px; }
  .hero-float.f1 { left: 0; }
  .hero-float.f2 { right: 0; }
  .bento, .principles, .scene-grid, .timeline, .grid-3, .grid-2, .steps, .stats-grid, .figure-grid, .footer-grid, .post-card { grid-template-columns: 1fr; }
  .bento .b-card, .bento .b-wide { grid-column: span 1; }
  .trust-inner { grid-template-columns: 1fr; }
  .trust-item { border-left: 0; padding: 8px 0; border-top: 1px solid rgba(255,255,255,.08); }
  .trust-item:first-child { border-top: 0; }
  .stat-b { border-left: 0; padding: 30px 0; border-top: 1px solid rgba(255,255,255,.08); }
  .stat-b:first-child { border-top: 0; }
  .tl-item { padding: 0 0 28px 0; }
  .tl-item::before { display: none; }
  .post-card { padding: 14px; gap: 16px; }
  .logo-img { height: 38px; }
}

/* ---------- 内页 Hero 补充 ---------- */
.hero-chips { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 26px; }
.hero-chips span {
  padding: 8px 15px; border-radius: 100px;
  background: rgba(255,255,255,.06); border: 1px solid rgba(255,255,255,.12);
  font-size: 13.5px; color: #cbd5e1;
}
.page-hero .btn { margin-top: 30px; }

/* 浅底描边按钮（白底页面使用） */
.btn-outline { border: 1px solid var(--line-2); color: var(--ink); background: #fff; }
.btn-outline:hover { border-color: var(--brand); color: var(--brand); background: #fff; }