/* ============================================================
   翼腾网络 · 官网首页 v2
   科技蓝浅色主题 · 灰/紫辅助 · 纯 CSS 动效
   ============================================================ */

:root {
  --bg: #f6f8fc;
  --bg-soft: #edf1f8;
  --bg-card: #ffffff;
  --border: rgba(23, 55, 110, 0.09);
  --border-strong: rgba(23, 55, 110, 0.16);
  --text: #0f1b33;
  --text-dim: #52627c;
  --text-faint: #8b98ad;
  --accent: #2563eb;        /* 科技蓝 */
  --accent-2: #7c3aed;      /* 辅助紫 */
  --accent-soft: #eaf1ff;   /* 蓝色浅底 */
  --gradient: linear-gradient(135deg, #2563eb 0%, #7c3aed 100%);
  --green: #059669;
  --yellow: #d97706;
  --red: #ef4444;
  --radius: 16px;
  --nav-h: 72px;
  --shadow-sm: 0 2px 12px rgba(23, 55, 110, 0.06);
  --shadow-md: 0 14px 40px rgba(23, 55, 110, 0.1);
  --shadow-lg: 0 24px 64px rgba(23, 55, 110, 0.14);
  --font: "Inter", "Noto Sans SC", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
}

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

html { scroll-behavior: smooth; scroll-padding-top: var(--nav-h); }

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

::selection { background: rgba(37, 99, 235, 0.18); }

a { color: inherit; text-decoration: none; }
ul { list-style: none; }

.container { width: min(1180px, 92%); margin: 0 auto; }

.gradient-text {
  background: var(--gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* ---------------- 按钮 ---------------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border-radius: 999px;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  border: 1px solid transparent;
  transition: all 0.3s ease;
  white-space: nowrap;
}
.btn-lg { padding: 14px 32px; font-size: 16px; }
.btn-sm { padding: 9px 22px; font-size: 14px; }
.btn .arrow { transition: transform 0.3s ease; }
.btn:hover .arrow { transform: translateX(4px); }

.btn-primary {
  background: var(--gradient);
  color: #ffffff;
  box-shadow: 0 6px 22px rgba(37, 99, 235, 0.35);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 32px rgba(37, 99, 235, 0.45);
}

.btn-ghost {
  border-color: var(--border-strong);
  color: var(--text);
  background: var(--bg-card);
}
.btn-ghost:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}

/* ---------------- 导航 ---------------- */
.nav {
  position: fixed;
  inset: 0 0 auto 0;
  height: var(--nav-h);
  z-index: 100;
  transition: all 0.4s ease;
  background: transparent;
}
.nav.scrolled {
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
}
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: var(--nav-h); }

.logo { display: flex; align-items: center; gap: 10px; }
.logo-wing { width: 34px; height: 34px; animation: wingFloat 4s ease-in-out infinite; }
@keyframes wingFloat {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  50% { transform: translateY(-3px) rotate(3deg); }
}
.logo-text { font-weight: 800; font-size: 18px; letter-spacing: 0.5px; }
.logo-text em { font-style: normal; font-size: 10px; font-weight: 600; color: var(--text-faint); margin-left: 6px; letter-spacing: 2px; vertical-align: 2px; }

.nav-links { display: flex; gap: 36px; }
.nav-links a {
  font-size: 15px;
  color: var(--text-dim);
  position: relative;
  transition: color 0.3s;
}
.nav-links a::after {
  content: "";
  position: absolute;
  left: 0; bottom: -6px;
  width: 0; height: 2px;
  background: var(--gradient);
  border-radius: 2px;
  transition: width 0.3s ease;
}
.nav-links a:hover { color: var(--text); }
.nav-links a:hover::after { width: 100%; }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: 0;
  cursor: pointer;
  padding: 8px;
}
.nav-toggle span {
  width: 24px; height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: all 0.3s ease;
}
.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------------- Hero ---------------- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: calc(var(--nav-h) + 40px) 0 80px;
  overflow: hidden;
  background: linear-gradient(180deg, #f2f7ff 0%, var(--bg) 100%);
}

.hero-bg { position: absolute; inset: 0; z-index: 0; }

.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(90px);
  will-change: transform;
}
.orb-1 {
  width: 520px; height: 520px;
  background: radial-gradient(circle, rgba(37, 99, 235, 0.22), transparent 65%);
  top: -140px; left: -120px;
  animation: drift1 16s ease-in-out infinite;
}
.orb-2 {
  width: 460px; height: 460px;
  background: radial-gradient(circle, rgba(124, 58, 237, 0.18), transparent 65%);
  bottom: -120px; right: -100px;
  animation: drift2 20s ease-in-out infinite;
}
.orb-3 {
  width: 300px; height: 300px;
  background: radial-gradient(circle, rgba(6, 182, 212, 0.16), transparent 65%);
  top: 40%; left: 55%;
  animation: drift3 24s ease-in-out infinite;
}
@keyframes drift1 {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(60px, 40px) scale(1.1); }
}
@keyframes drift2 {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(-70px, -30px) scale(1.08); }
}
@keyframes drift3 {
  0%, 100% { transform: translate(0, 0); }
  50% { transform: translate(40px, -50px); }
}

.grid-overlay {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(37, 99, 235, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(37, 99, 235, 0.05) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse 80% 70% at 50% 30%, #000 30%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse 80% 70% at 50% 30%, #000 30%, transparent 75%);
}

.hero-inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 56px;
  align-items: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 16px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 600;
  color: var(--accent);
  background: rgba(37, 99, 235, 0.08);
  border: 1px solid rgba(37, 99, 235, 0.25);
  margin-bottom: 24px;
  animation: badgePulse 3s ease-in-out infinite;
}
@keyframes badgePulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(37, 99, 235, 0.22); }
  50% { box-shadow: 0 0 0 8px rgba(37, 99, 235, 0); }
}

.hero h1 {
  font-size: clamp(42px, 6vw, 72px);
  font-weight: 900;
  line-height: 1.15;
  letter-spacing: -1px;
  margin-bottom: 20px;
}

.hero-sub {
  font-size: clamp(15px, 1.6vw, 18px);
  color: var(--text-dim);
  margin-bottom: 32px;
}
.hero-sub strong { color: var(--text); }

.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 40px; }

.hero-stats { display: flex; align-items: center; gap: 24px; }
.hs-item b {
  display: block;
  font-size: 26px;
  font-weight: 800;
  background: var(--gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  line-height: 1.2;
}
.hs-item span { font-size: 13px; color: var(--text-faint); }
.hs-line { width: 1px; height: 34px; background: var(--border-strong); }

/* ---- 终端卡片 ---- */
.terminal {
  background: var(--bg-card);
  border: 1px solid var(--border-strong);
  border-radius: 14px;
  box-shadow: var(--shadow-lg), inset 0 1px 0 rgba(255, 255, 255, 0.8);
  overflow: hidden;
  animation: terminalGlow 5s ease-in-out infinite;
}
@keyframes terminalGlow {
  0%, 100% { box-shadow: var(--shadow-lg), 0 0 0 1px rgba(37, 99, 235, 0.06); }
  50% { box-shadow: 0 24px 70px rgba(37, 99, 235, 0.18), 0 0 36px rgba(37, 99, 235, 0.1); }
}
.terminal-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 16px;
  background: var(--bg-soft);
  border-bottom: 1px solid var(--border);
}
.t-dot { width: 11px; height: 11px; border-radius: 50%; }
.t-dot.r { background: #f87171; }
.t-dot.y { background: #fbbf24; }
.t-dot.g { background: #34d399; }
.t-title { margin-left: 8px; font-size: 12px; color: var(--text-faint); letter-spacing: 0.3px; }

.terminal-body {
  padding: 20px 22px;
  font-family: "SFMono-Regular", "JetBrains Mono", Consolas, monospace;
  font-size: 13.5px;
  line-height: 2;
  min-height: 320px;
  color: #334155;
}
.t-line { white-space: pre-wrap; word-break: break-all; animation: fadeIn 0.3s ease; }
.t-cmd { color: var(--accent); font-weight: 600; }
.t-ok { color: var(--green); }
.t-info { color: var(--text-faint); }
.t-high { color: var(--accent-2); font-weight: 700; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(4px); } to { opacity: 1; transform: none; } }
.t-cursor {
  display: inline-block;
  width: 8px; height: 16px;
  background: var(--accent);
  vertical-align: -2px;
  animation: blink 0.9s steps(1) infinite;
}
@keyframes blink { 50% { opacity: 0; } }

/* ---- 滚动提示 ---- */
.scroll-hint {
  position: absolute;
  left: 50%;
  bottom: 28px;
  transform: translateX(-50%);
  z-index: 2;
}
.mouse {
  display: block;
  width: 24px; height: 38px;
  border: 2px solid var(--text-faint);
  border-radius: 14px;
  position: relative;
}
.wheel {
  position: absolute;
  top: 7px; left: 50%;
  width: 4px; height: 8px;
  margin-left: -2px;
  border-radius: 3px;
  background: var(--accent);
  animation: scrollWheel 1.8s ease-in-out infinite;
}
@keyframes scrollWheel {
  0% { transform: translateY(0); opacity: 1; }
  70% { transform: translateY(14px); opacity: 0; }
  100% { transform: translateY(0); opacity: 0; }
}

/* ---------------- 信任数据条 ---------------- */
.trust-bar {
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  background: var(--bg-card);
  padding: 44px 0 0;
}
.trust-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  padding-bottom: 44px;
}
.trust-item { text-align: center; }
.trust-item b {
  font-size: clamp(34px, 4.5vw, 52px);
  font-weight: 800;
  line-height: 1.1;
}
.trust-item i { font-style: normal; font-size: 26px; font-weight: 700; color: var(--accent-2); }
.trust-item span { display: block; margin-top: 6px; font-size: 14px; color: var(--text-dim); }

/* ---- 技术栈跑马灯 ---- */
.marquee {
  overflow: hidden;
  padding: 16px 0;
  border-top: 1px solid var(--border);
  mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent);
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent);
}
.marquee-track {
  display: flex;
  align-items: center;
  width: max-content;
  animation: marquee 30s linear infinite;
}
.marquee-group {
  display: flex;
  gap: 28px;
  align-items: center;
  padding-right: 28px;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-faint);
  letter-spacing: 1px;
  white-space: nowrap;
}
.marquee-group i { font-style: normal; color: var(--accent); opacity: 0.6; }
@keyframes marquee {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}
.marquee:hover .marquee-track { animation-play-state: paused; }

/* ---------------- 通用 Section ---------------- */
.section { padding: 96px 0; position: relative; }

.section-head { text-align: center; max-width: 720px; margin: 0 auto 56px; }
.section-tag {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  color: var(--accent);
  letter-spacing: 2px;
  padding: 6px 16px;
  border: 1px solid rgba(37, 99, 235, 0.28);
  border-radius: 999px;
  background: rgba(37, 99, 235, 0.06);
  margin-bottom: 18px;
}
.section-head h2 {
  font-size: clamp(28px, 3.6vw, 42px);
  font-weight: 900;
  letter-spacing: -0.5px;
  margin-bottom: 14px;
}
.section-head p { color: var(--text-dim); font-size: 16px; }

/* ---------------- 痛点 ---------------- */
.pain { background: var(--bg-soft); }
.pain-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.pain-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 26px;
  transition: all 0.35s ease;
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}
.pain-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(300px circle at var(--mx, 50%) var(--my, 0%), rgba(239, 68, 68, 0.07), transparent 60%);
  opacity: 0;
  transition: opacity 0.35s;
  pointer-events: none;
}
.pain-card:hover {
  border-color: rgba(239, 68, 68, 0.3);
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
}
.pain-card:hover::before { opacity: 1; }
.p-icon { font-size: 30px; display: inline-block; margin-bottom: 16px; }
.pain-card h3 { font-size: 18px; font-weight: 700; margin-bottom: 8px; }
.pain-card p { font-size: 14.5px; color: var(--text-dim); }

/* ---------------- 解决方案宣言 ---------------- */
.statement {
  padding: 110px 0;
  text-align: center;
  position: relative;
  overflow: hidden;
  background: var(--bg-card);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.statement::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 60% 70% at 50% 50%, rgba(124, 58, 237, 0.07), transparent 70%);
}
.statement h2 {
  font-size: clamp(30px, 4.2vw, 52px);
  font-weight: 900;
  margin-bottom: 22px;
}
.statement p { color: var(--text-dim); font-size: 17px; margin-bottom: 44px; }
.statement p strong { color: var(--text); }

.statement-flow {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 18px;
  flex-wrap: wrap;
}
.sf-item {
  padding: 12px 24px;
  border: 1px solid var(--border-strong);
  border-radius: 999px;
  font-size: 14px;
  color: var(--text-dim);
  background: var(--bg);
}
.sf-arrow { color: var(--accent); font-size: 18px; }
.gradient-border {
  background: var(--gradient);
  color: #ffffff;
  font-weight: 700;
  border-color: transparent;
  box-shadow: 0 8px 30px rgba(37, 99, 235, 0.35);
  animation: sfGlow 2.6s ease-in-out infinite;
}
@keyframes sfGlow {
  0%, 100% { box-shadow: 0 8px 30px rgba(37, 99, 235, 0.35); }
  50% { box-shadow: 0 8px 46px rgba(124, 58, 237, 0.5); }
}

/* ---------------- 服务能力 ---------------- */
.cap-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.cap-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 30px 26px;
  transition: all 0.35s ease;
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}
.cap-card::after {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--gradient);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s ease;
}
.cap-card:hover {
  transform: translateY(-6px);
  border-color: rgba(37, 99, 235, 0.3);
  box-shadow: var(--shadow-md);
}
.cap-card:hover::after { transform: scaleX(1); }
.cap-icon {
  width: 52px; height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 26px;
  border-radius: 14px;
  background: var(--accent-soft);
  border: 1px solid rgba(37, 99, 235, 0.18);
  margin-bottom: 20px;
  transition: transform 0.3s ease;
}
.cap-card:hover .cap-icon { transform: scale(1.08) rotate(-4deg); }
.cap-card h3 { font-size: 18px; font-weight: 700; margin-bottom: 10px; }
.cap-card p { font-size: 14px; color: var(--text-dim); margin-bottom: 18px; }
.cap-tags { display: flex; flex-wrap: wrap; gap: 8px; }
.cap-tags li {
  font-size: 12px;
  color: var(--accent);
  padding: 3px 10px;
  border-radius: 999px;
  border: 1px solid rgba(37, 99, 235, 0.2);
  background: var(--accent-soft);
  font-weight: 500;
}

/* ---------------- 落地案例 ---------------- */
.cases { background: var(--bg-soft); }
.case-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 22px;
}
.case-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 30px 28px;
  transition: all 0.35s ease;
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}
.case-card:hover {
  transform: translateY(-6px);
  border-color: rgba(37, 99, 235, 0.32);
  box-shadow: var(--shadow-md);
}
.case-card.featured {
  border-color: rgba(37, 99, 235, 0.25);
  background: linear-gradient(160deg, rgba(37, 99, 235, 0.05), rgba(124, 58, 237, 0.04) 55%, #ffffff);
  grid-column: 1 / -1;
  overflow: visible;
}
.featured-ribbon {
  position: absolute;
  top: 20px; left: -46px;
  transform: rotate(-45deg);
  background: var(--gradient);
  color: #fff;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 1px;
  padding: 6px 48px;
  box-shadow: 0 4px 14px rgba(37, 99, 235, 0.35);
  z-index: 2;
}
.featured-inner {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr);
  gap: 30px;
  align-items: center;
}
.featured-inner .case-img { margin-bottom: 0; }
.featured-body .case-desc { margin-bottom: 14px; }
.case-feats {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 20px;
}
.case-feats li {
  font-size: 12px;
  color: var(--accent);
  background: var(--accent-soft);
  border: 1px solid rgba(37, 99, 235, 0.18);
  border-radius: 999px;
  padding: 4px 12px;
  font-weight: 500;
}
@media (max-width: 860px) {
  .featured-inner { grid-template-columns: 1fr; }
  .featured-inner .case-img { margin-bottom: 20px; }
  .featured-ribbon { top: 14px; left: -52px; }
}
.case-top { display: flex; justify-content: space-between; align-items: center; margin-bottom: 18px; }
.case-icon { font-size: 34px; }
.case-status {
  font-size: 12.5px;
  font-weight: 600;
  padding: 5px 12px;
  border-radius: 999px;
}
.case-status.live { color: var(--green); background: rgba(5, 150, 105, 0.08); border: 1px solid rgba(5, 150, 105, 0.28); }
.case-status.dev { color: var(--yellow); background: rgba(217, 119, 6, 0.07); border: 1px solid rgba(217, 119, 6, 0.25); }

.case-status.plan { color: var(--accent); background: rgba(37, 99, 235, 0.08); border: 1px solid rgba(37, 99, 235, 0.25); }

.case-img-placeholder {
  background: linear-gradient(160deg, #eef3ff 0%, #f4efff 100%);
  display: flex;
  align-items: center;
  justify-content: center;
}
.case-img-placeholder .ph-icon {
  width: 64px;
  height: 64px;
  color: var(--accent);
  opacity: 0.75;
}
.case-desc { font-size: 14.5px; color: var(--text-dim); margin-bottom: 22px; }

.case-metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  border-top: 1px solid var(--border);
  padding-top: 18px;
}
.case-metrics b {
  display: block;
  font-size: 20px;
  font-weight: 800;
  background: var(--gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  line-height: 1.3;
}
.case-metrics span { font-size: 12px; color: var(--text-faint); }

/* ---------------- 产品矩阵 ---------------- */
.products-strip { padding: 80px 0; }
.product-chips {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 16px;
  max-width: 900px;
  margin: 0 auto;
}
.pchip {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 22px;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: var(--bg-card);
  transition: all 0.3s ease;
  flex-wrap: wrap;
  box-shadow: var(--shadow-sm);
}
.pchip:hover { border-color: var(--border-strong); transform: translateY(-3px); box-shadow: var(--shadow-md); }
.pchip b { font-size: 15px; font-weight: 700; }
.pchip small { width: 100%; font-size: 12px; color: var(--text-faint); }
.pill { font-size: 12px; font-weight: 600; padding: 3px 10px; border-radius: 999px; }
.pill.live { color: var(--green); background: rgba(5, 150, 105, 0.08); }
.pill.dev { color: var(--yellow); background: rgba(217, 119, 6, 0.07); }
.pill.plan { color: var(--accent); background: rgba(37, 99, 235, 0.08); }

/* ---------------- 合作流程 ---------------- */
.process { background: var(--bg-soft); }
.process-steps {
  display: grid;
  grid-template-columns: 1fr auto 1fr auto 1fr auto 1fr;
  align-items: stretch;
  gap: 18px;
}
.pstep {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 30px 24px;
  text-align: center;
  transition: all 0.35s ease;
  box-shadow: var(--shadow-sm);
}
.pstep:hover {
  border-color: rgba(37, 99, 235, 0.32);
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
}
.ps-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 52px; height: 52px;
  border-radius: 50%;
  font-size: 19px;
  font-weight: 800;
  background: var(--accent-soft);
  border: 1px solid rgba(37, 99, 235, 0.3);
  color: var(--accent);
  margin-bottom: 18px;
}
.pstep h3 { font-size: 17px; font-weight: 700; margin-bottom: 8px; }
.pstep p { font-size: 13.5px; color: var(--text-dim); }
.ps-connector {
  position: relative;
  width: 44px;
}
.ps-connector::before {
  content: "";
  position: absolute;
  top: 50%; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, rgba(37, 99, 235, 0.5), rgba(124, 58, 237, 0.5));
  border-radius: 2px;
}
.ps-connector::after {
  content: "";
  position: absolute;
  top: 50%; right: 2px;
  width: 8px; height: 8px;
  margin-top: -3px;
  border-top: 2px solid var(--accent);
  border-right: 2px solid var(--accent);
  transform: rotate(45deg);
}

/* ---------------- FAQ ---------------- */
.faq { background: var(--bg-soft); }
.faq-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
  max-width: 1000px;
  margin: 0 auto;
}
.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 6px 22px;
  box-shadow: var(--shadow-sm);
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
}
.faq-item:hover { border-color: rgba(37, 99, 235, 0.3); box-shadow: var(--shadow-md); }
.faq-item summary {
  cursor: pointer;
  list-style: none;
  font-size: 15.5px;
  font-weight: 700;
  padding: 16px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  color: var(--text);
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: "+";
  flex-shrink: 0;
  width: 26px; height: 26px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 18px;
  font-weight: 600;
  transition: transform 0.3s ease, background 0.3s ease;
}
.faq-item[open] summary::after { transform: rotate(45deg); background: var(--accent); color: #fff; }
.faq-item p {
  font-size: 14px;
  color: var(--text-dim);
  padding-bottom: 18px;
  line-height: 1.8;
}
.faq-item p b { color: var(--text); font-weight: 600; }
.faq-item p a { color: var(--accent); text-decoration: underline; }
@media (max-width: 768px) {
  .faq-grid { grid-template-columns: 1fr; }
}

/* ---------------- CTA ---------------- */
.cta {
  position: relative;
  padding: 120px 0;
  overflow: hidden;
  text-align: center;
  background: linear-gradient(135deg, #1d4ed8 0%, #4f46e5 50%, #7c3aed 100%);
}
.cta-bg { position: absolute; inset: 0; z-index: 0; }
.orb-4 {
  width: 520px; height: 520px;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.16), transparent 65%);
  top: -160px; left: -80px;
  animation: drift2 18s ease-in-out infinite;
}
.orb-5 {
  width: 480px; height: 480px;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.12), transparent 65%);
  bottom: -180px; right: -60px;
  animation: drift1 22s ease-in-out infinite;
}
.cta-inner { position: relative; z-index: 1; }
.cta h2 {
  font-size: clamp(32px, 4.6vw, 56px);
  font-weight: 900;
  line-height: 1.2;
  margin-bottom: 20px;
  color: #ffffff;
}
.cta h2 .gradient-text {
  background: linear-gradient(135deg, #bfdbfe 0%, #ddd6fe 100%);
  -webkit-background-clip: text;
  background-clip: text;
}
.cta p { color: rgba(255, 255, 255, 0.82); font-size: 17px; margin-bottom: 40px; }
.cta-actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; margin-bottom: 36px; }
.cta .btn-primary {
  background: #ffffff;
  color: #1d4ed8;
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.2);
}
.cta .btn-primary:hover { transform: translateY(-2px); box-shadow: 0 12px 40px rgba(0, 0, 0, 0.28); }
.cta .btn-ghost {
  border-color: rgba(255, 255, 255, 0.45);
  color: #ffffff;
  background: rgba(255, 255, 255, 0.08);
}
.cta .btn-ghost:hover { border-color: #ffffff; color: #ffffff; background: rgba(255, 255, 255, 0.16); }
.cta-trust {
  display: flex;
  justify-content: center;
  gap: 28px;
  flex-wrap: wrap;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.85);
}
.cta-trust span { display: inline-flex; align-items: center; gap: 6px; }

/* ---------------- Footer ---------------- */
.footer {
  border-top: 1px solid var(--border);
  background: var(--bg-card);
  padding: 64px 0 0;
}
.footer-inner {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 48px;
}
.footer-brand p { font-size: 14px; color: var(--text-dim); margin-top: 14px; }
.footer-col h4 {
  font-size: 14px;
  font-weight: 700;
  margin-bottom: 16px;
  color: var(--text);
  letter-spacing: 0.5px;
}
.footer-col a {
  display: block;
  font-size: 14px;
  color: var(--text-dim);
  margin-bottom: 10px;
  transition: color 0.25s;
}
.footer-col a:hover { color: var(--accent); }
.footer-bottom {
  border-top: 1px solid var(--border);
  padding: 20px 0;
}
.footer-bottom .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 13px;
  color: var(--text-faint);
}
.footer-tag { color: var(--text-faint); }

/* ---------------- 滚动显现动画 ---------------- */
.reveal {
  opacity: 0;
  transform: translateY(34px);
  transition: opacity 0.8s cubic-bezier(0.22, 1, 0.36, 1), transform 0.8s cubic-bezier(0.22, 1, 0.36, 1);
  transition-delay: calc(var(--d, 0) * 90ms);
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ---------------- 响应式 ---------------- */
@media (max-width: 1024px) {
  .hero-inner { grid-template-columns: 1fr; gap: 40px; }
  .hero-right { max-width: 560px; }
  .cap-grid { grid-template-columns: repeat(2, 1fr); }
  .process-steps { grid-template-columns: 1fr 1fr; }
  .ps-connector { display: none; }
  .footer-inner { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .nav-links {
    position: fixed;
    inset: var(--nav-h) 0 auto 0;
    flex-direction: column;
    gap: 0;
    background: rgba(255, 255, 255, 0.97);
    backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border);
    padding: 8px 0 16px;
    visibility: hidden;
    pointer-events: none;
    transform: translateY(calc(-100% - var(--nav-h)));
    transition: transform 0.35s ease, visibility 0s linear 0.35s;
    box-shadow: var(--shadow-md);
  }
  .nav-links.open {
    visibility: visible;
    pointer-events: auto;
    transform: translateY(0);
    transition: transform 0.35s ease, visibility 0s;
  }
  .nav-links a { display: block; padding: 14px 28px; font-size: 16px; }
  .nav-links a::after { display: none; }
  .nav-cta { display: none; }
  .nav-toggle { display: flex; }

  .pain-grid { grid-template-columns: 1fr; }
  .case-grid { grid-template-columns: 1fr; }
  .trust-grid { grid-template-columns: repeat(2, 1fr); }
  .hero-stats { gap: 16px; flex-wrap: wrap; }
  .footer-inner { grid-template-columns: 1fr; gap: 32px; }
  .statement-flow { gap: 10px; }
  .hide-mobile { display: none; }
}

@media (max-width: 480px) {
  .section { padding: 72px 0; }
  .hero-actions .btn { width: 100%; justify-content: center; }
  .cap-grid { grid-template-columns: 1fr; }
  .process-steps { grid-template-columns: 1fr; }
  .cta-actions .btn { width: 100%; justify-content: center; }
  .cta-trust { gap: 14px; }
  .trust-grid { grid-template-columns: 1fr 1fr; gap: 18px; }
}

/* ============================================================
   v3 优化：首屏大气化 + 粒子动效 + AI 代码生成终端
   ============================================================ */

/* ---- 首屏标题（更大、两行、流光渐变） ---- */
.hero h1.hero-title {
  font-size: clamp(44px, 6.4vw, 84px);
  letter-spacing: -1.5px;
}
.ht-line { display: block; }
.hero-title .shimmer {
  background-size: 220% auto;
  animation: shimmer 4.5s linear infinite;
}
@keyframes shimmer {
  to { background-position: -220% center; }
}

/* ---- 核心主张行 ---- */
.hero-claim {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 15.5px;
  font-weight: 700;
  color: var(--accent-2);
  margin-bottom: 28px;
}
.claim-bar {
  width: 4px;
  height: 20px;
  border-radius: 2px;
  background: var(--gradient);
  box-shadow: 0 0 12px rgba(37, 99, 235, 0.45);
}

/* ---- 粒子网络 ---- */
.particles {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

/* ---- 漂浮几何图形 ---- */
.shapes { position: absolute; inset: 0; z-index: 0; pointer-events: none; }
.shape { position: absolute; opacity: 0.55; }
.ring-1 {
  width: 130px; height: 130px;
  border: 2px solid rgba(37, 99, 235, 0.3);
  border-radius: 50%;
  top: 16%; left: 5%;
  animation: spin 34s linear infinite, floatY 7s ease-in-out infinite;
}
.ring-1::after {
  content: "";
  position: absolute; inset: 16px;
  border: 2px dashed rgba(124, 58, 237, 0.35);
  border-radius: 50%;
}
.ring-2 {
  width: 64px; height: 64px;
  border: 2px solid rgba(124, 58, 237, 0.35);
  border-radius: 50%;
  bottom: 24%; right: 7%;
  animation: spin 22s linear infinite reverse, floatY 9s ease-in-out infinite;
}
.plus-1 {
  font-size: 36px;
  font-weight: 300;
  color: rgba(37, 99, 235, 0.4);
  top: 12%; right: 16%;
  animation: spin 14s linear infinite, floatY 8s ease-in-out infinite;
}
.tri-1 {
  width: 0; height: 0;
  border-left: 17px solid transparent;
  border-right: 17px solid transparent;
  border-bottom: 30px solid rgba(124, 58, 237, 0.28);
  top: 64%; left: 9%;
  animation: floatY 10s ease-in-out infinite;
}
.dot-1, .dot-2 {
  width: 10px; height: 10px;
  border-radius: 50%;
  background: rgba(37, 99, 235, 0.5);
  box-shadow: 0 0 20px rgba(37, 99, 235, 0.6);
}
.dot-1 { top: 28%; right: 28%; animation: floatY 6s ease-in-out infinite; }
.dot-2 {
  width: 7px; height: 7px;
  bottom: 16%; left: 26%;
  background: rgba(124, 58, 237, 0.55);
  animation: floatY 7.5s ease-in-out infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
@keyframes floatY {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-18px); }
}

/* ---- 终端：AI 代码生成 ---- */
.terminal-body { min-height: 300px; }
.t-file { color: var(--accent-2); font-weight: 600; }
.t-code { color: #1e293b; font-weight: 500; }
.t-com { color: #9aa8bd; font-style: italic; }
.t-ok { font-weight: 600; }
.t-cmd { font-weight: 700; }

/* ============================================================
   v4 优化：Hero 蓝底 + 格子 + 白字适配 / 案例截图位
   ============================================================ */

/* ---- Hero 蓝底渐变 + 白色格子 ---- */
.hero {
  background: linear-gradient(165deg, #10317f 0%, #1d4ed8 55%, #2563eb 100%);
}
.hero .grid-overlay {
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.07) 1px, transparent 1px);
}
.orb-1 { background: radial-gradient(circle, rgba(255, 255, 255, 0.16), transparent 65%); }
.orb-2 { background: radial-gradient(circle, rgba(191, 219, 254, 0.14), transparent 65%); }
.orb-3 { background: radial-gradient(circle, rgba(221, 214, 254, 0.12), transparent 65%); }

/* ---- Hero 白字适配 ---- */
.hero .hero-badge {
  color: #ffffff;
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(255, 255, 255, 0.32);
}
.hero .hero-title { color: #ffffff; }
.hero .hero-title .gradient-text {
  background: linear-gradient(135deg, #e0f2fe 0%, #c7d2fe 100%);
  -webkit-background-clip: text;
  background-clip: text;
}
.hero .hero-sub { color: rgba(255, 255, 255, 0.88); }
.hero .hero-sub strong { color: #ffffff; }
.hero .hero-claim { color: #dbeafe; }
.hero .claim-bar {
  background: linear-gradient(135deg, #bfdbfe, #ddd6fe);
  box-shadow: 0 0 14px rgba(255, 255, 255, 0.5);
}
.hero .hs-item b {
  background: linear-gradient(135deg, #e0f2fe, #c7d2fe);
  -webkit-background-clip: text;
  background-clip: text;
}
.hero .hs-item span { color: rgba(255, 255, 255, 0.72); }
.hero .hs-line { background: rgba(255, 255, 255, 0.3); }

/* ---- Hero 三标签 ---- */
.hero-tags {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 24px;
}
.hero-tags span {
  font-size: 13px;
  font-weight: 600;
  color: #ffffff;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.3);
  padding: 5px 14px;
  border-radius: 999px;
}

/* ---- Hero 按钮适配 ---- */
.hero .btn-primary {
  background: #ffffff;
  color: #1d4ed8;
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.25);
}
.hero .btn-primary:hover { box-shadow: 0 12px 40px rgba(0, 0, 0, 0.32); }
.hero .btn-ghost {
  border-color: rgba(255, 255, 255, 0.5);
  color: #ffffff;
  background: rgba(255, 255, 255, 0.08);
}
.hero .btn-ghost:hover {
  border-color: #ffffff;
  background: rgba(255, 255, 255, 0.16);
  color: #ffffff;
}

/* ---- 滚动提示适配 ---- */
.hero .mouse { border-color: rgba(255, 255, 255, 0.55); }
.hero .wheel { background: #ffffff; }

/* ---- 案例截图位 ---- */
.case-img {
  position: relative;
  aspect-ratio: 16 / 10;
  border-radius: 12px;
  overflow: hidden;
  margin-bottom: 20px;
  border: 1px solid var(--border);
  background: #edf2f9;
  box-shadow: var(--shadow-sm);
}
.case-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.5s ease;
}
.case-card:hover .case-img img { transform: scale(1.05); }
.case-img-tag {
  position: absolute;
  right: 10px;
  bottom: 10px;
  font-size: 11px;
  font-weight: 600;
  color: var(--text-dim);
  background: rgba(255, 255, 255, 0.92);
  padding: 3px 10px;
  border-radius: 999px;
  box-shadow: var(--shadow-sm);
}

/* ============================================================
   v5 优化：悬浮白玻璃胶囊导航（蓝底上高亮、不融一体）
   ============================================================ */

.nav {
  height: auto;
  padding: 14px 0 0;
}
.nav-inner {
  height: 60px;
  padding: 0 24px;
  background: rgba(255, 255, 255, 0.75);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.55);
  border-radius: 999px;
  box-shadow: 0 10px 34px rgba(13, 42, 110, 0.16);
  transition: all 0.35s ease;
}
.nav.scrolled {
  padding-top: 8px;
  background: transparent;
  border-bottom: none;
  box-shadow: none;
  backdrop-filter: none;
}
.nav.scrolled .nav-inner {
  background: rgba(255, 255, 255, 0.94);
  box-shadow: 0 12px 40px rgba(13, 42, 110, 0.22);
}

/* Logo + 公司名高亮 */
.logo-wing { filter: drop-shadow(0 2px 6px rgba(37, 99, 235, 0.45)); }
.logo-text {
  background: var(--gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  font-weight: 900;
}
.logo-text em {
  color: var(--accent);
  opacity: 0.85;
  font-weight: 700;
}

/* 菜单高亮 */
.nav-links a {
  color: var(--text);
  font-weight: 600;
  font-size: 15px;
}
.nav-links a:hover { color: var(--accent); }

/* 锚点滚动补偿：胶囊导航更高 */
html { scroll-padding-top: 96px; }

/* 移动端下拉面板对齐胶囊高度：nav-inner 高 60px，菜单贴其底部（backdrop-filter 使 fixed 相对 nav-inner 定位） */
@media (max-width: 768px) {
  .nav-links { inset: 60px 0 auto 0; }
}

/* ============================================================
   v6 优化：统一线性图标系统
   规格：24 网格 · 1.7px 描边 · 圆头圆角 · currentColor 继承
   配色：能力/案例=科技蓝 · 痛点=警示红
   ============================================================ */

.icon-line {
  width: 26px;
  height: 26px;
  display: block;
  transition: transform 0.35s ease;
}

/* 能力图标：蓝色 + 浅蓝底芯片（沿用 cap-icon 容器） */
.cap-icon svg { color: var(--accent); }
.cap-card:hover .icon-line { transform: scale(1.12) rotate(-3deg); }

/* 案例图标：蓝色 + 浅蓝底芯片 */
.case-icon {
  width: 46px;
  height: 46px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 13px;
  background: var(--accent-soft);
  border: 1px solid rgba(37, 99, 235, 0.18);
}
.case-icon .icon-line { width: 25px; height: 25px; }
.case-card:hover .case-icon .icon-line { transform: scale(1.12); }

/* 痛点图标：红色 + 浅红底芯片 */
.p-icon {
  width: 50px;
  height: 50px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 14px;
  background: rgba(239, 68, 68, 0.07);
  border: 1px solid rgba(239, 68, 68, 0.2);
  margin-bottom: 16px;
}
.p-icon svg { color: var(--red); }
.pain-card:hover .p-icon .icon-line { transform: scale(1.12) rotate(-3deg); }

/* ============================================================
   v7 优化：section-tag 升级为大气眉题（双侧渐变线）
   ============================================================ */

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 4px;
  text-indent: 4px;               /* 抵消尾字字距，保持视觉居中 */
  color: var(--accent);
  padding: 0;
  border: none;
  background: none;
  margin-bottom: 22px;
}
.section-tag::before,
.section-tag::after {
  content: "";
  width: 40px;
  height: 2px;
  border-radius: 2px;
  background: linear-gradient(90deg, transparent, var(--accent));
}
.section-tag::after {
  background: linear-gradient(90deg, var(--accent), transparent);
}
@media (max-width: 480px) {
  .section-tag::before,
  .section-tag::after { width: 22px; }
}

/* ============================================================
   v9：勾选图标线性化（✅/✓ → SVG）
   ============================================================ */

.icon-check { width: 19px; height: 19px; flex-shrink: 0; }
.sf-item { display: inline-flex; align-items: center; gap: 10px; }
.cta-trust .icon-check { width: 15px; height: 15px; }

/* ============================================================
   v11：二维码悬浮弹层（微信 / 扫码体验）
   ============================================================ */

.qr-wrap { position: relative; display: inline-block; }

.qr-pop {
  position: absolute;
  bottom: calc(100% + 14px);
  left: 50%;
  transform: translateX(-50%) translateY(6px);
  width: 172px;
  background: #ffffff;
  border: 1px solid var(--border-strong);
  border-radius: 14px;
  box-shadow: var(--shadow-lg);
  padding: 14px 14px 10px;
  text-align: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.25s ease, transform 0.25s ease, visibility 0.25s;
  z-index: 60;
  pointer-events: none;
}
.qr-pop img {
  width: 140px;
  height: 140px;
  display: block;
  margin: 0 auto 8px;
  border-radius: 8px;
  border: 1px solid var(--border);
}
.qr-cap {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-dim);
  display: block;
}
.qr-pop::after {
  content: "";
  position: absolute;
  top: 100%;
  left: 50%;
  margin-left: -6px;
  border: 6px solid transparent;
  border-top-color: #ffffff;
}

/* 案例卡内：弹层朝下 */
.qr-pop-below {
  bottom: auto;
  top: calc(100% + 12px);
  transform: translateX(-50%) translateY(-6px);
}
.qr-pop-below::after {
  top: auto;
  bottom: 100%;
  border-top-color: transparent;
  border-bottom-color: #ffffff;
}

.qr-wrap:hover .qr-pop,
.qr-wrap.open .qr-pop {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}

/* 扫码体验小按钮 */
.qr-mini {
  font-family: inherit;
  font-size: 12.5px;
  font-weight: 600;
  color: var(--accent);
  background: var(--accent-soft);
  border: 1px solid rgba(37, 99, 235, 0.28);
  border-radius: 999px;
  padding: 5px 13px;
  cursor: pointer;
  transition: all 0.25s ease;
  white-space: nowrap;
}
.qr-mini:hover {
  background: var(--accent);
  color: #ffffff;
  box-shadow: 0 4px 14px rgba(37, 99, 235, 0.35);
}

.case-top-right {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

/* 案例卡取消 overflow 裁剪，允许弹层溢出 */
.case-card { overflow: visible; }

/* ============================================================
   v12：产品矩阵改 4×2 卡片网格 + 扫码按钮线性图标
   ============================================================ */

.pgrid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  max-width: 1080px;
  margin: 0 auto;
}
.pcard {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 22px 20px;
  box-shadow: var(--shadow-sm);
  transition: all 0.3s ease;
}
.pcard:hover {
  transform: translateY(-4px);
  border-color: rgba(37, 99, 235, 0.32);
  box-shadow: var(--shadow-md);
}
.pcard-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}
.pcard-icon {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
  background: var(--accent-soft);
  border: 1px solid rgba(37, 99, 235, 0.18);
}
.pcard-icon svg { color: var(--accent); width: 23px; height: 23px; }
.pcard h3 { font-size: 16.5px; font-weight: 800; margin-bottom: 4px; }
.pcard p { font-size: 13px; color: var(--text-dim); }

/* 扫码体验按钮：图标 + 文字 */
.qr-mini {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.icon-qr { width: 15px; height: 15px; flex-shrink: 0; }

@media (max-width: 1024px) {
  .pgrid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 560px) {
  .pgrid { grid-template-columns: 1fr; }
}

/* ============================================================
   v13：产品矩阵按成熟度分组（方案 C）
   ============================================================ */

.pgroups {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  align-items: start;
  max-width: 1120px;
  margin: 0 auto;
}
.pgroup {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 24px 20px;
  box-shadow: var(--shadow-sm);
}
.pgroup-head {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 4px;
}
.pgroup-head h3 { font-size: 18px; font-weight: 800; }
.pgroup-head p { font-size: 13px; color: var(--text-dim); margin: 2px 0 16px; }
.pgroup-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  flex-shrink: 0;
}
.pgroup-dot.live { background: var(--green); box-shadow: 0 0 10px rgba(5, 150, 105, 0.6); }
.pgroup-dot.dev { background: var(--yellow); box-shadow: 0 0 10px rgba(217, 119, 6, 0.6); }
.pgroup-dot.plan { background: var(--accent); box-shadow: 0 0 10px rgba(37, 99, 235, 0.6); }

.pgroup-cards { display: flex; flex-direction: column; gap: 10px; }

.pcard.compact {
  padding: 16px 16px 14px;
  border-radius: 12px;
  box-shadow: none;
}
.pcard.compact .pcard-head { margin-bottom: 10px; }
.pcard.compact .pcard-icon {
  width: 38px;
  height: 38px;
  border-radius: 10px;
}
.pcard.compact .pcard-icon svg { width: 20px; height: 20px; }
.pcard.compact h4 { font-size: 15px; font-weight: 800; margin-bottom: 2px; }
.pcard.compact p { font-size: 12.5px; color: var(--text-dim); }

@media (max-width: 1024px) {
  .pgroups { grid-template-columns: 1fr; }
  .pgroup-cards { display: grid; grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 560px) {
  .pgroup-cards { grid-template-columns: 1fr; }
}

/* ============================================================
   v14：产品矩阵改自适应卡片网格（auto-fill，方便扩展）
   新增产品 = 加一张卡，网格自动重排
   ============================================================ */

.pgrid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(252px, 1fr));
  gap: 16px;
  max-width: 1120px;
  margin: 0 auto;
}
.pcard {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 22px 20px;
  box-shadow: var(--shadow-sm);
  transition: all 0.3s ease;
}
.pcard:hover {
  transform: translateY(-4px);
  border-color: rgba(37, 99, 235, 0.32);
  box-shadow: var(--shadow-md);
}
.pcard-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 16px;
}
.pcard-icon {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
  background: var(--accent-soft);
  border: 1px solid rgba(37, 99, 235, 0.18);
}
.pcard-icon svg { color: var(--accent); width: 23px; height: 23px; }
.pcard h3 { font-size: 16.5px; font-weight: 800; margin-bottom: 4px; }
.pcard p { font-size: 13px; color: var(--text-dim); }

/* ============================================================
   v16：Hero 徽标放大
   ============================================================ */

.hero .hero-badge {
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 1px;
  padding: 10px 24px;
  gap: 10px;
}