/* ============================================================
   无界指纹浏览器 · 官网视觉系统 v10
   在 v9 基础上做「信息密度 + 视觉层次 + 质感」升级
   ============================================================ */

:root {
  --ink: #070d1c;
  --ink-2: #0d1730;
  --accent: #2d5aff;
  --accent-2: #5b7bff;
  --accent-3: #8b5cf6;
  --accent-soft: rgba(45, 90, 255, 0.1);
  --line: #e6ebf7;
  --line-soft: #eef2fb;
  --card: #ffffff;
  --muted: #5b6577;
  --faint: #8b94a7;
  --radius-lg: 24px;
  --radius-md: 18px;
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
}

body { font-size: 16px; }

/* 顶部滚动进度条 */
.scroll-progress {
  position: fixed; top: 0; left: 0; height: 3px; width: 100%;
  transform: scaleX(0); transform-origin: 0 50%;
  background: linear-gradient(90deg, #2d5aff, #4f86ff);
  z-index: 200; pointer-events: none;
}

/* ---------------- 导航细节 ---------------- */
.nav-dropdown {
  padding: 10px; border-radius: 14px;
  box-shadow: 0 24px 60px rgba(10, 22, 51, 0.16);
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.97);
  backdrop-filter: blur(18px);
}
.nav-dropdown a {
  padding: 9px 12px; border-radius: 9px;
  transition: background 0.18s ease, color 0.18s ease, padding-left 0.18s ease;
}
.nav-dropdown a:hover { background: var(--accent-soft); color: var(--accent); padding-left: 16px; }
.site-header.scrolled { height: 68px; }
.site-header.scrolled .nav-row { height: 68px; }

/* ---------------- Hero v2 ---------------- */
.hero {
  padding: 104px 0 88px;
  background:
    radial-gradient(1100px 620px at 82% -18%, rgba(45, 90, 255, 0.14), transparent 62%),
    radial-gradient(760px 460px at 4% 6%, rgba(139, 92, 246, 0.10), transparent 60%),
    linear-gradient(180deg, #fbfcff 0%, #ffffff 62%, #ffffff 100%);
  overflow: clip;
}
.hero::after {
  content: ""; position: absolute; inset: 0; pointer-events: none; z-index: 0;
  background-image:
    linear-gradient(to right, rgba(13, 23, 48, 0.045) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(13, 23, 48, 0.045) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: radial-gradient(720px 460px at 60% 10%, #000 20%, transparent 78%);
  -webkit-mask-image: radial-gradient(720px 460px at 60% 10%, #000 20%, transparent 78%);
}
.hero-grid { grid-template-columns: 1.04fr 1fr; gap: 60px; align-items: center; }
.hero-badge {
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid #dfe6f7;
  box-shadow: 0 8px 22px rgba(17, 38, 74, 0.06);
  letter-spacing: 0.2px;
}
.hero-title {
  font-size: clamp(46px, 5.6vw, 74px);
  line-height: 1.02; letter-spacing: -3.2px; margin-top: 26px;
}
.hero-title .grad {
  background: linear-gradient(112deg, #2d5aff 8%, #6d5bff 52%, #8b5cf6 94%);
  -webkit-background-clip: text; background-clip: text;
}
.hero-sub { font-size: 17.5px; line-height: 1.8; max-width: 560px; margin-top: 26px; }
.hero-actions { margin-top: 34px; }
.hero-proof {
  display: flex; flex-wrap: wrap; gap: 18px; margin-top: 20px;
  font-size: 13px; color: var(--muted);
}
.hero-proof span { display: inline-flex; align-items: center; gap: 6px; }
.hero-proof svg { color: #12b76a; }

.hero-stats {
  display: grid; grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0; margin-top: 42px; padding-top: 0;
  border: 1px solid var(--line); border-radius: 16px;
  background: rgba(255, 255, 255, 0.72);
  backdrop-filter: blur(10px);
  overflow: hidden;
}
.hero-stats > div { padding: 18px 20px; }
.hero-stats > div + div { border-left: 1px solid var(--line); }
.hero-stats strong {
  display: block; font-size: 28px; font-weight: 800;
  letter-spacing: -1.1px; color: var(--ink); line-height: 1.1;
}
.hero-stats strong em { font-style: normal; color: var(--accent); }
.hero-stats span { display: block; margin-top: 5px; font-size: 12.5px; color: var(--faint); }

.hero-visual { min-height: 460px; }
.hero-stage {
  position: relative; border-radius: 22px;
  padding: 10px;
  background: linear-gradient(150deg, rgba(45, 90, 255, 0.22), rgba(139, 92, 246, 0.12) 46%, rgba(255, 255, 255, 0) 74%);
  box-shadow: 0 40px 90px rgba(17, 38, 74, 0.16);
}
.hero-stage::before {
  content: ""; position: absolute; inset: -40px -30px auto auto; width: 220px; height: 220px;
  border-radius: 50%; background: radial-gradient(circle, rgba(45, 90, 255, 0.24), transparent 66%);
  filter: blur(18px);
}
.hero-stage .window-frame { border-radius: 18px; border: 1px solid rgba(255, 255, 255, 0.9); background: #fff; }
.hero-stage img { display: block; }

.float-card {
  background: rgba(255, 255, 255, 0.94);
  border: 1px solid #e2e9f8;
  box-shadow: 0 18px 40px rgba(17, 38, 74, 0.14), inset 0 1px 0 #fff;
  border-radius: 14px; padding: 10px 14px 10px 10px;
  font-size: 12.8px; gap: 9px;
}
.float-card i {
  width: 30px; height: 30px; border-radius: 9px;
  background: linear-gradient(145deg, rgba(45, 90, 255, 0.14), rgba(139, 92, 246, 0.12));
  color: var(--accent); font-size: 14px;
}

/* ---------------- 行业跑马灯 ---------------- */
.trust { padding: 22px 0; background: #fff; border-top: 1px solid var(--line-soft); border-bottom: 1px solid var(--line-soft); }
.trust-row { display: flex; align-items: center; gap: 34px; }
.trust-label { flex: none; font-size: 13px; color: var(--faint); letter-spacing: 0.3px; }
.marquee { flex: 1; overflow: hidden; -webkit-mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent); mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent); }
.marquee-track { display: flex; gap: 42px; width: max-content; animation: unbMarquee 26s linear infinite; }
.marquee:hover .marquee-track { animation-play-state: paused; }
.trust-item {
  font-size: 14px; font-weight: 600; color: #475467; white-space: nowrap;
  padding-left: 18px; position: relative;
}
.trust-item::before {
  content: ""; position: absolute; left: 0; top: 50%; width: 7px; height: 7px;
  margin-top: -3.5px; border-radius: 2px; background: linear-gradient(135deg, #2d5aff, #8b5cf6); opacity: 0.7;
}
@keyframes unbMarquee { from { transform: translate3d(0, 0, 0); } to { transform: translate3d(-50%, 0, 0); } }

/* ---------------- 区块标题 ---------------- */
.section { padding: 96px 0; }
.section-alt { background: #f6f8fd; }
.section-head { max-width: 760px; }
.section-head.center { margin: 0 auto; text-align: center; }
.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 12.5px; font-weight: 700; letter-spacing: 1.2px;
  color: var(--accent); text-transform: uppercase;
  padding: 6px 12px; border-radius: 999px;
  background: rgba(45, 90, 255, 0.08);
  border: 1px solid rgba(45, 90, 255, 0.14);
}
.eyebrow::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--accent); }
.section-title {
  margin-top: 18px; font-size: clamp(32px, 3.4vw, 46px);
  line-height: 1.14; letter-spacing: -1.9px; font-weight: 800; color: var(--ink);
}
.section-sub { margin-top: 16px; font-size: 16.5px; line-height: 1.8; color: var(--muted); }
.section-head.center .section-sub { margin-left: auto; margin-right: auto; max-width: 640px; }

/* ---------------- 风险卡 ---------------- */
.risk-grid { margin-top: 52px; gap: 20px; }
.risk-card { padding: 28px; border-radius: var(--radius-md); }
.risk-card:hover { box-shadow: var(--shadow-card-hover); }
.risk-card h3 { font-size: 19px; letter-spacing: -0.3px; }
.risk-card p { font-size: 14.5px; line-height: 1.75; }
.risk-tag {
  margin-top: 18px; display: inline-flex; font-size: 12px;
  padding: 5px 10px; border-radius: 7px;
  background: rgba(240, 68, 56, 0.07); color: #d92d20; font-weight: 600;
}
.risk-meter { margin-top: 20px; }
.risk-meter-top { display: flex; justify-content: space-between; font-size: 12px; color: var(--faint); margin-bottom: 8px; }
.risk-meter-top b { color: #d92d20; font-weight: 700; }
.risk-meter-bar { height: 6px; border-radius: 99px; background: #f0f3fa; overflow: hidden; }
.risk-meter-bar i {
  display: block; height: 100%; width: var(--w, 0%); border-radius: 99px;
  background: linear-gradient(90deg, #ff8a5c, #f04438);
  transform: scaleX(0); transform-origin: 0 50%;
  transition: transform 1.2s var(--ease) 0.2s;
}
.risk-card.visible .risk-meter-bar i { transform: scaleX(1); }

/* ---------------- 三步流程 ---------------- */
.flow-wrap { margin-top: 60px; position: relative; }
.flow-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; position: relative; }
.flow-grid::before {
  content: ""; position: absolute; top: 46px; left: 8%; right: 8%; height: 1px;
  background: linear-gradient(90deg, transparent, rgba(45, 90, 255, 0.35), rgba(139, 92, 246, 0.35), transparent);
}
.flow-step { position: relative; padding-top: 4px; }
.flow-num {
  position: relative; z-index: 1;
  display: inline-flex; align-items: center; justify-content: center;
  width: 54px; height: 54px; border-radius: 16px;
  background: #fff; border: 1px solid var(--line);
  font-size: 15px; font-weight: 800; color: var(--accent);
  box-shadow: 0 10px 24px rgba(17, 38, 74, 0.07);
  letter-spacing: 0.5px;
}
.flow-step h3 { margin-top: 20px; font-size: 20px; letter-spacing: -0.4px; color: var(--ink); }
.flow-step p { margin-top: 10px; font-size: 14.5px; line-height: 1.75; color: var(--muted); }
.flow-panel {
  margin-top: 20px; border-radius: 14px; border: 1px solid var(--line);
  background: #fff; padding: 14px; box-shadow: 0 12px 30px rgba(17, 38, 74, 0.05);
}
.flow-row { display: flex; align-items: center; gap: 10px; padding: 7px 0; font-size: 12.5px; color: #475467; }
.flow-row + .flow-row { border-top: 1px dashed var(--line); }
.flow-row b { margin-left: auto; font-weight: 600; color: var(--ink); }
.flow-dot { width: 8px; height: 8px; border-radius: 50%; background: #12b76a; box-shadow: 0 0 0 3px rgba(18, 183, 106, 0.14); flex: none; }
.flow-code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 12px; line-height: 1.7; color: #334155;
  background: #f7f9fd; border-radius: 10px; padding: 12px; margin-top: 10px;
  white-space: pre-wrap;
}

/* ---------------- Bento 2.0 ---------------- */
.bento { margin-top: 52px; gap: 20px; }
.bento-card { padding: 28px; border-radius: var(--radius-md); }
.bento-card h3 { font-size: 19px; letter-spacing: -0.3px; }
.bento-card p { font-size: 14.5px; line-height: 1.75; }
.bento-card--wide { grid-column: span 4; }
.bento-widget { margin-top: 18px; border-radius: 12px; border: 1px solid var(--line); background: #fbfcff; padding: 12px; }
.fp-row { display: flex; align-items: center; gap: 10px; font-size: 12.5px; padding: 6px 0; color: #475467; }
.fp-row + .fp-row { border-top: 1px dashed var(--line-soft); }
.fp-row code {
  margin-left: auto; font-family: ui-monospace, Menlo, Consolas, monospace;
  font-size: 11.5px; color: #344054; background: #fff;
  border: 1px solid var(--line); padding: 2px 7px; border-radius: 6px;
}
.fp-ok { color: #12b76a; font-size: 11px; font-weight: 700; display: inline-flex; align-items: center; gap: 4px; }
.proxy-row { display: flex; align-items: center; gap: 10px; font-size: 12.5px; padding: 7px 0; }
.proxy-row + .proxy-row { border-top: 1px dashed var(--line-soft); }
.proxy-row .st { width: 7px; height: 7px; border-radius: 50%; background: #12b76a; flex: none; }
.proxy-row .st.warn { background: #f79009; }
.proxy-row em { margin-left: auto; font-style: normal; color: var(--faint); font-family: ui-monospace, Menlo, monospace; font-size: 11.5px; }
.code-mini {
  font-family: ui-monospace, Menlo, Consolas, monospace; font-size: 11.5px; line-height: 1.8;
  color: #cdd6f4; background: #0b1220; border-radius: 10px; padding: 14px; overflow-x: auto;
}
.code-mini .k { color: #8b9cff; }
.code-mini .s { color: #7ee0b0; }
.code-mini .c { color: #6b7a99; }

/* ---------------- 场景卡 ---------------- */
.scene-grid { margin-top: 52px; gap: 20px; }
.scene-card { border-radius: var(--radius-md); }
.scene-media { position: relative; }
.scene-media::after {
  content: ""; position: absolute; inset: auto 0 0 0; height: 58%;
  background: linear-gradient(180deg, transparent, rgba(7, 13, 28, 0.55));
}
.scene-metrics {
  position: absolute; left: 16px; right: 16px; bottom: 14px; z-index: 1;
  display: flex; flex-wrap: wrap; gap: 6px;
}
.scene-metrics span {
  font-size: 11.5px; font-weight: 600; color: #fff;
  background: rgba(255, 255, 255, 0.16);
  border: 1px solid rgba(255, 255, 255, 0.28);
  backdrop-filter: blur(8px);
  padding: 4px 9px; border-radius: 999px;
}
.scene-body { padding: 22px 24px 24px; }
.scene-body h3 { font-size: 19px; letter-spacing: -0.3px; }
.scene-body p { font-size: 14px; line-height: 1.7; }

/* ---------------- 对比表 ---------------- */
.compare-wrap {
  margin-top: 48px; border: 1px solid var(--line); border-radius: var(--radius-lg);
  background: #fff; overflow: hidden; box-shadow: 0 24px 60px rgba(17, 38, 74, 0.07);
}
.compare { width: 100%; border-collapse: collapse; font-size: 14.5px; }
.compare th, .compare td { padding: 16px 22px; text-align: left; border-bottom: 1px solid var(--line-soft); }
.compare thead th { background: #f8faff; font-size: 13px; color: var(--faint); font-weight: 600; letter-spacing: 0.3px; }
.compare thead th.us { color: var(--accent); background: rgba(45, 90, 255, 0.07); }
.compare tbody tr:last-child td { border-bottom: 0; }
.compare td:first-child { font-weight: 600; color: var(--ink); }
.compare td.us { background: rgba(45, 90, 255, 0.035); color: var(--ink); font-weight: 600; }
.compare .yes { color: #12b76a; font-weight: 700; }
.compare .no { color: #98a2b3; }

/* ---------------- 数字条 v2 ---------------- */
.metrics-band {
  padding: 74px 0; position: relative; overflow: hidden;
  background: linear-gradient(115deg, #0a1430 0%, #101f4d 48%, #1a1450 100%);
  background-size: 180% 180%;
}
.metrics-band::before {
  content: ""; position: absolute; inset: 0;
  background-image: radial-gradient(rgba(255, 255, 255, 0.14) 1px, transparent 1px);
  background-size: 28px 28px; opacity: 0.35;
  mask-image: radial-gradient(600px 300px at 20% 0%, #000, transparent 72%);
  -webkit-mask-image: radial-gradient(600px 300px at 20% 0%, #000, transparent 72%);
}
.metrics-grid { position: relative; z-index: 1; gap: 0; display: grid; grid-template-columns: repeat(4, 1fr); }
.metrics-grid > div { padding: 0 28px; }
.metrics-grid > div + div { border-left: 1px solid rgba(255, 255, 255, 0.12); }
.metrics-grid strong { font-size: clamp(38px, 4vw, 54px); color: #fff; letter-spacing: -2px; line-height: 1; }
.metrics-grid strong em { font-style: normal; background: linear-gradient(120deg, #8fb0ff, #c9b6ff); -webkit-background-clip: text; background-clip: text; color: transparent; }
.metrics-grid span { display: block; margin-top: 12px; font-size: 13.5px; color: rgba(255, 255, 255, 0.68); line-height: 1.6; }
.metrics-note { margin-top: 34px; font-size: 12.5px; color: rgba(255, 255, 255, 0.45); text-align: center; position: relative; z-index: 1; }

/* ---------------- 安全 v2 ---------------- */
.security-grid { gap: 60px; }
.check-list { margin-top: 26px; }
.check-list li { font-size: 15px; line-height: 1.7; padding: 10px 0 10px 30px; border-bottom: 1px dashed var(--line); }
.security-visual .window-frame { box-shadow: 0 36px 80px rgba(10, 22, 51, 0.24); }
.security-badge {
  position: absolute; left: 18px; bottom: -18px;
  background: #fff; border: 1px solid var(--line); border-radius: 12px;
  padding: 10px 14px; font-size: 12.5px; font-weight: 600; color: var(--ink);
  box-shadow: 0 16px 36px rgba(17, 38, 74, 0.12);
}
.security-badge i { color: #12b76a; font-style: normal; margin-right: 6px; }

/* ---------------- 模块矩阵 ---------------- */
.matrix { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; margin-top: 50px; }
.matrix-col { background: #fff; border: 1px solid var(--line); border-radius: var(--radius-md); padding: 24px 22px; }
.matrix-col h3 {
  display: flex; align-items: center; justify-content: space-between;
  font-size: 15px; letter-spacing: 0; color: var(--ink); margin-bottom: 6px;
}
.matrix-col h3 em { font-style: normal; font-size: 11.5px; font-weight: 600; color: var(--accent); background: var(--accent-soft); padding: 3px 8px; border-radius: 999px; }
.matrix-col > p { font-size: 12.5px; color: var(--faint); line-height: 1.6; min-height: 40px; }
.matrix-list { margin-top: 12px; }
.matrix-list a {
  display: flex; align-items: center; gap: 8px; padding: 8px 0;
  font-size: 13.5px; color: #344054; border-top: 1px solid var(--line-soft);
  transition: color 0.18s ease, transform 0.18s ease;
}
.matrix-list a:hover { color: var(--accent); transform: translateX(3px); }
.matrix-list a::before { content: ""; width: 5px; height: 5px; border-radius: 50%; background: #c3ccdf; flex: none; }
.matrix-list a:hover::before { background: var(--accent); }
.matrix-list a em { margin-left: auto; font-style: normal; font-size: 11px; color: var(--faint); font-family: ui-monospace, Menlo, monospace; }

/* ---------------- 接入方式 ---------------- */
.integrate { display: grid; grid-template-columns: 0.92fr 1.08fr; gap: 56px; align-items: center; }
.integrate-copy .section-title { font-size: clamp(30px, 3vw, 40px); }
.tabs { display: flex; gap: 8px; margin-top: 26px; }
.tab {
  font-size: 13px; font-weight: 600; color: var(--muted);
  padding: 8px 14px; border-radius: 999px; border: 1px solid var(--line);
  background: #fff; cursor: pointer; transition: all 0.2s ease;
}
.tab[aria-selected="true"] { color: #fff; background: var(--accent); border-color: var(--accent); }
.code-panel {
  border-radius: 18px; background: #0a1122; color: #d7e0f5;
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: 0 30px 70px rgba(10, 17, 34, 0.3);
  overflow: hidden;
}
.code-head {
  display: flex; align-items: center; gap: 8px; padding: 12px 16px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.07);
  font-size: 12px; color: rgba(255, 255, 255, 0.5);
}
.code-head .dot { width: 9px; height: 9px; }
.code-head span:last-child { margin-left: auto; font-family: ui-monospace, Menlo, monospace; }
.code-body { padding: 20px 22px; font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: 12.5px; line-height: 1.9; overflow-x: auto; min-height: 244px; }
.code-body .k { color: #8fa4ff; }
.code-body .s { color: #86e3b4; }
.code-body .c { color: #5d6b8a; }
.code-body .n { color: #ffc078; }
.tabpane[hidden] { display: none; }

/* ---------------- 资源 ---------------- */
.resource-grid { margin-top: 50px; }
.resource-card { padding: 28px; border-radius: var(--radius-md); }
.resource-kicker { font-size: 11.5px; letter-spacing: 1px; text-transform: uppercase; }
.resource-card h3 { font-size: 18px; }
.resource-meta { margin-top: 14px; font-size: 12px; color: var(--faint); display: flex; gap: 14px; }

/* ---------------- FAQ 双栏 ---------------- */
.faq-layout { display: grid; grid-template-columns: 0.8fr 1.2fr; gap: 56px; align-items: start; margin-top: 10px; }
.faq-layout .section-head { position: sticky; top: 100px; }
.faq-list { margin-top: 0; }
.faq-item { border-radius: 14px; margin-bottom: 12px; padding: 0 20px; }
.faq-item summary { padding: 18px 0; font-size: 15.5px; font-weight: 600; }
.faq-body { padding: 0 0 18px; font-size: 14px; line-height: 1.8; }
.faq-item[open] { border-color: rgba(45, 90, 255, 0.3); background: #fff; }

/* ---------------- CTA v2 ---------------- */
.cta-card {
  position: relative; overflow: hidden; border-radius: 28px;
  padding: 64px 56px; text-align: center;
  background: linear-gradient(120deg, #2a4ff0 0%, #2d5aff 40%, #6d4df0 100%);
  box-shadow: 0 40px 90px rgba(45, 90, 255, 0.3);
}
.cta-card::before {
  content: ""; position: absolute; inset: 0;
  background-image:
    radial-gradient(circle at 18% 24%, rgba(255, 255, 255, 0.25), transparent 40%),
    radial-gradient(circle at 82% 78%, rgba(255, 255, 255, 0.18), transparent 44%);
}
.cta-card h2 { position: relative; font-size: clamp(30px, 3.4vw, 44px); letter-spacing: -1.6px; color: #fff; }
.cta-card p { position: relative; color: rgba(255, 255, 255, 0.82); font-size: 16px; margin-top: 14px; }
.cta-actions { position: relative; margin-top: 30px; gap: 12px; }
.cta-card .btn-primary { background: #fff; color: #2338c9; box-shadow: 0 16px 34px rgba(7, 13, 28, 0.18); }
.cta-card .btn-primary:hover { background: #f4f6ff; }
.cta-card .btn-ghost { color: #fff; border-color: rgba(255, 255, 255, 0.42); background: rgba(255, 255, 255, 0.08); }
.cta-note { position: relative; margin-top: 18px; font-size: 12.5px; color: rgba(255, 255, 255, 0.62); }

/* ---------------- 指针光斑 / 倾斜 ---------------- */
.spotlight { position: relative; overflow: hidden; }
.spotlight::before {
  content: ""; position: absolute; inset: 0; pointer-events: none; opacity: 0;
  background: radial-gradient(280px circle at var(--mx, 50%) var(--my, 50%), rgba(45, 90, 255, 0.10), transparent 68%);
  transition: opacity 0.3s ease;
}
.spotlight:hover::before { opacity: 1; }
.tilt { transform-style: preserve-3d; will-change: transform; }
.tilt-inner { transform: translateZ(24px); }

/* ---------------- 响应式 ---------------- */
@media (max-width: 1080px) {
  .hero-grid { grid-template-columns: 1fr; gap: 48px; }
  .hero-visual { min-height: 0; }
  .matrix { grid-template-columns: repeat(2, 1fr); }
  .flow-grid { grid-template-columns: 1fr; gap: 30px; }
  .flow-grid::before { display: none; }
  .integrate { grid-template-columns: 1fr; gap: 36px; }
  .faq-layout { grid-template-columns: 1fr; gap: 28px; }
  .faq-layout .section-head { position: static; }
  .bento-card--wide { grid-column: span 6; }
}
@media (max-width: 820px) {
  .section { padding: 72px 0; }
  .metrics-grid { grid-template-columns: repeat(2, 1fr); row-gap: 34px; }
  .metrics-grid > div { padding: 0 18px; }
  .metrics-grid > div:nth-child(3) { border-left: 0; }
  .hero-stats { grid-template-columns: 1fr; }
  .hero-stats > div + div { border-left: 0; border-top: 1px solid var(--line); }
  .compare-wrap { overflow-x: auto; }
  .compare { min-width: 640px; }
  .bento-card--wide { grid-column: span 1; }
}
@media (max-width: 640px) {
  .hero { padding: 72px 0 64px; }
  .hero-title { letter-spacing: -2px; }
  .matrix { grid-template-columns: 1fr; }
  .cta-card { padding: 44px 26px; }
  .trust-row { flex-direction: column; align-items: stretch; gap: 14px; }
  .trust-label { text-align: left; }
}
@media (prefers-reduced-motion: reduce) {
  .marquee-track { animation: none; }
  .risk-meter-bar i { transform: scaleX(1); transition: none; }
  .spotlight::before { display: none; }
}

/* ---------------- 布局校正 ---------------- */
.bento-card--wide { grid-column: span 4; grid-row: span 2; padding: 0; }
.bento-card--half { grid-column: span 3; }
.risk-facts { margin-top: 20px; border: 1px solid var(--line); border-radius: 12px; background: #fbfcff; padding: 8px 12px; }
.risk-facts .fp-row:first-child { border-top: 0; }
.hero-visual .window-frame img { border-radius: 0; }
.integrate-chips { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 22px; }
.integrate-chips span {
  font-size: 12.5px; font-weight: 600; color: #344054;
  border: 1px solid var(--line); background: #fff;
  padding: 7px 12px; border-radius: 999px;
}
.integrate-chips span b { color: var(--accent); font-weight: 700; }
@media (max-width: 1080px) {
  .bento-card--wide { grid-column: span 6; grid-row: auto; }
  .bento-card--half { grid-column: span 3; }
}
@media (max-width: 820px) {
  .bento-card--half { grid-column: span 6; }
}

/* ---------------- 细节修正 v10.1 ---------------- */
.marquee { min-width: 0; flex: 1 1 0; width: 100%; }
.trust-row { min-width: 0; }
.section-title { text-wrap: balance; }
.hero-grid { grid-template-columns: 0.98fr 1.1fr; }
.hero-stage { margin-right: -30px; }
.hero::before {
  content: ""; position: absolute; z-index: 0; pointer-events: none;
  width: 560px; height: 560px; right: -80px; top: 40px; border-radius: 50%;
  background: radial-gradient(circle, rgba(45, 90, 255, 0.16), transparent 66%);
  filter: blur(30px);
}
.flow-grid::before {
  top: 47px; height: 2px; border-radius: 2px;
  background: linear-gradient(90deg, rgba(45, 90, 255, 0), rgba(45, 90, 255, 0.45) 18%, rgba(139, 92, 246, 0.45) 82%, rgba(139, 92, 246, 0));
}
.flow-num { box-shadow: 0 10px 24px rgba(17, 38, 74, 0.09), 0 0 0 6px #f5f7fd; }
.section-alt .flow-num { box-shadow: 0 10px 24px rgba(17, 38, 74, 0.09), 0 0 0 6px #f6f8fd; }
.matrix-col { display: flex; flex-direction: column; }
.matrix-cta {
  margin-top: auto; padding-top: 14px; border-top: 1px solid var(--line-soft);
}
.matrix-cta a {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 12.5px; font-weight: 600; color: var(--accent);
}
.matrix-note {
  margin-top: 12px; font-size: 12px; color: var(--faint);
  background: linear-gradient(135deg, rgba(45, 90, 255, 0.07), rgba(139, 92, 246, 0.07));
  border-radius: 10px; padding: 10px 12px; line-height: 1.6;
}
@media (max-width: 1080px) {
  .hero-stage { margin-right: 0; }
  .hero::before { display: none; }
}
@media (max-width: 640px) {
  .trust-row { overflow: hidden; }
  .code-body { font-size: 11.5px; }
  .hero-stats { margin-top: 32px; }
}

/* ---------------- 首屏收尾校正 v10.2 ---------------- */
.hero { background:
    radial-gradient(1200px 720px at 86% -20%, rgba(45, 90, 255, 0.13), transparent 66%),
    radial-gradient(980px 620px at 2% 0%, rgba(139, 92, 246, 0.06), transparent 62%),
    linear-gradient(180deg, #fbfcff 0%, #ffffff 64%, #ffffff 100%);
}
.hero-stage { margin-right: 0; }
.hero-stage img { filter: contrast(1.04) saturate(1.04); }
.hero::before { opacity: 0.6; filter: blur(56px); }
.float-card--a { left: -18px; top: -14px; }

/* ---------------- 首屏收尾校正 v10.3 ---------------- */
.hero { background:
    radial-gradient(1200px 720px at 88% -22%, rgba(45, 90, 255, 0.13), transparent 64%),
    linear-gradient(180deg, #fbfcff 0%, #ffffff 64%, #ffffff 100%);
}
.hero-stage {
  z-index: 1;
  background: linear-gradient(150deg, #eaf0ff 0%, #f6f3ff 46%, #ffffff 100%);
  box-shadow: 0 34px 80px rgba(17, 38, 74, 0.14), 0 0 0 1px rgba(45, 90, 255, 0.08);
}
.hero-stage .window-frame { position: relative; z-index: 1; }
.hero-visual .float-card { z-index: 3; }

/* ---------------- 首屏伪元素重置 v10.4 ---------------- */
.hero::before,
.hero::after {
  content: ""; position: absolute; pointer-events: none; z-index: 0;
  border-radius: 0; filter: none; animation: none; background: none;
  width: auto; height: auto; inset: auto;
}
.hero::after {
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(13, 23, 48, 0.045) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(13, 23, 48, 0.045) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: radial-gradient(720px 460px at 62% 8%, #000 18%, transparent 76%);
  -webkit-mask-image: radial-gradient(720px 460px at 62% 8%, #000 18%, transparent 76%);
}
.hero::before {
  top: -170px; right: -110px; width: 660px; height: 660px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(45, 90, 255, 0.13), transparent 66%);
  filter: blur(40px);
  animation: unbDrift 22s ease-in-out infinite alternate;
}