:root {
  --bg: radial-gradient(1200px 800px at 15% 10%, #eef6ff 0%, transparent 55%),
        radial-gradient(1000px 700px at 85% 0%, #f1efff 0%, transparent 55%),
        radial-gradient(900px 700px at 55% 95%, #eafff7 0%, transparent 60%),
        linear-gradient(180deg, #fbfcff 0%, #f3f7ff 100%);
  --fg: #1f2a3a;
  --muted: #5b6b85;
  --primary: #3b82f6;
  --primary-2: #6366f1;
  --accent: #22c55e;
  --ok: #22c55e;
  --warn: #f59e0b;
  --danger: #ef4444;
  --glass: rgba(255,255,255,0.7);
  --glass-2: rgba(255,255,255,0.85);
  --border: rgba(24,24,27,0.08);
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, PingFang SC, Hiragino Sans GB, Microsoft YaHei, Noto Sans SC, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

.bg { position: fixed; inset: 0; z-index: -1; overflow: hidden; }
.bg__gradient { position: absolute; inset: -20% -20%; background: radial-gradient(1200px 700px at 12% 18%, rgba(59,130,246,0.18), transparent), radial-gradient(1100px 650px at 86% 6%, rgba(99,102,241,0.15), transparent), radial-gradient(1200px 700px at 55% 92%, rgba(34,197,94,0.10), transparent); filter: blur(70px); animation: drift 22s ease-in-out infinite; }
.bg__orbs { position: absolute; inset: 0; background-image: radial-gradient(closest-side, rgba(255,255,255,0.55), transparent 72%); animation: float 14s ease-in-out infinite, drift 26s ease-in-out infinite; opacity: 0.30; }

@keyframes float { 0%,100% { transform: translateY(0) } 50% { transform: translateY(-20px) } }
@keyframes drift { 0%,100% { transform: translate3d(0,0,0) scale(1); opacity: 0.9; } 50% { transform: translate3d(-18px, 12px, 0) scale(1.04); opacity: 1; } }
@keyframes glow { 0%,100% { opacity: 0.45; transform: translateY(0); } 50% { opacity: 0.85; transform: translateY(-6px); } }
@keyframes shimmer { 0% { background-position: 0% 50%; } 100% { background-position: 100% 50%; } }
@keyframes pulse { 0%,100% { box-shadow: 0 18px 45px rgba(17,24,39,0.12); } 50% { box-shadow: 0 26px 60px rgba(17,24,39,0.16); } }

.header { position: sticky; top: 0; backdrop-filter: saturate(120%) blur(12px); background: rgba(255,255,255,0.7); border-bottom: 1px solid var(--border); z-index: 10; }
.header__inner { display: flex; align-items: center; justify-content: space-between; height: 64px; gap: 24px; }
.brand { display: flex; align-items: baseline; gap: 12px; }
.brand__logo { font-weight: 700; letter-spacing: 0.6px; background: linear-gradient(90deg, var(--primary), var(--accent)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.brand__tag { color: var(--muted); font-size: 14px; }
.nav { display: flex; gap: 20px; align-items: center; }
.nav a { color: var(--fg); text-decoration: none; font-size: 14px; opacity: 0.9; transition: opacity .2s ease, transform .2s ease; position: relative; padding: 6px 2px; }
.nav a::after { content: ""; position: absolute; left: 10%; right: 10%; bottom: -6px; height: 2px; border-radius: 999px; background: linear-gradient(90deg, var(--primary), var(--accent)); opacity: 0; transform: scaleX(0.6); transition: opacity .2s ease, transform .2s ease; }
.nav a:hover { opacity: 1; transform: translateY(-1px); }
.nav a:hover::after { opacity: 1; transform: scaleX(1); }

.hero { padding: 96px 0 48px; text-align: center; }
.hero__title { font-size: 42px; line-height: 1.1; margin: 0; letter-spacing: 0.6px; background: linear-gradient(90deg, #0f172a, rgba(15,23,42,0.88), rgba(15,23,42,0.72)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero__subtitle { margin: 16px auto 24px; max-width: 700px; color: var(--muted); font-size: 16px; }
.hero__title, .section__head h2 { background-size: 180% 180%; animation: shimmer 10s linear infinite; }
.hero__cta { display: flex; gap: 12px; justify-content: center; margin: 24px 0 32px; }
.hero__metrics { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 16px; margin-top: 24px; }
.metric { padding: 16px; background: var(--glass); border: 1px solid var(--border); border-radius: 16px; backdrop-filter: blur(8px); transition: transform .25s ease, box-shadow .25s ease; }
.metric:hover { transform: translateY(-4px); box-shadow: 0 16px 32px rgba(17,24,39,0.12); }
.metric__num { display: block; font-weight: 700; font-size: 28px; background: linear-gradient(90deg, var(--primary), var(--accent)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.metric__label { display: block; color: var(--muted); font-size: 12px; }

.btn { display: inline-flex; align-items: center; justify-content: center; height: 44px; padding: 0 18px; border-radius: 12px; text-decoration: none; font-weight: 600; position: relative; overflow: hidden; transition: transform .2s ease, box-shadow .2s ease; }
.btn--primary { background: linear-gradient(90deg, var(--primary), var(--primary-2)); color: white; box-shadow: 0 12px 26px rgba(59,130,246,0.28); }
.btn--ghost { background: var(--glass); color: var(--fg); border: 1px solid var(--border); }
.btn::after { content: ""; position: absolute; inset: -40% -10%; background: linear-gradient(120deg, transparent 20%, rgba(255,255,255,0.45), transparent 50%); transform: translateX(-120%); transition: transform .8s ease; }
.btn:hover { transform: translateY(-2px); box-shadow: 0 16px 28px rgba(15,23,42,0.12); }
.btn:hover::after { transform: translateX(120%); }
.btn svg { width: 18px; height: 18px; margin-right: 8px; color: currentColor; }
.btn--word svg { color: var(--primary); }
.btn--pdf svg { color: var(--danger); }

.section { padding: 64px 0; }
.section__head { text-align: center; margin-bottom: 24px; }
.section__head h2 { margin: 0; font-size: 28px; }
.section__head p { margin: 8px 0 0; color: var(--muted); }
.section__note { margin-top: 12px; text-align: center; color: var(--muted); font-size: 13px; }

.grid { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 20px; }
.card { position: relative; padding: 24px; border-radius: 20px; background: linear-gradient(180deg, rgba(255,255,255,0.92), rgba(255,255,255,0.78)); border: 1px solid rgba(24,24,27,0.10); backdrop-filter: blur(12px); box-shadow: 0 18px 45px rgba(17,24,39,0.10); transition: transform .25s ease, box-shadow .25s ease; }
.card::after { content: ""; position: absolute; inset: -1px; border-radius: 22px; background: radial-gradient(120px 80px at 20% 0%, rgba(59,130,246,0.18), transparent 60%), radial-gradient(140px 120px at 85% 100%, rgba(34,197,94,0.18), transparent 60%); opacity: 0; transition: opacity .25s ease; pointer-events: none; }
.card:hover { transform: translateY(-6px); box-shadow: 0 24px 60px rgba(17,24,39,0.14); }
.card:hover::after { opacity: 1; }
.card__title { font-size: 20px; margin: 0; }
.card__price { font-size: 32px; font-weight: 700; margin: 12px 0; letter-spacing: 0.6px; background: linear-gradient(90deg, var(--accent), var(--primary)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.card__desc { color: var(--muted); font-size: 14px; margin-bottom: 16px; }
.card__list { display: grid; gap: 8px; margin: 0; padding: 0; list-style: none; }
.card__item { display: flex; align-items: flex-start; gap: 8px; font-size: 14px; }
.card__item svg { flex: 0 0 auto; width: 18px; height: 18px; color: var(--ok); }
.card__actions { display: flex; gap: 10px; margin-top: 18px; }
.card--hot { outline: 1px solid rgba(255,255,255,0.18); animation: pulse 6s ease-in-out infinite; }

.feature-list { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 14px; margin: 0; padding: 0; list-style: none; }
.feature { padding: 18px; background: var(--glass); border: 1px solid var(--border); border-radius: 16px; display: grid; grid-template-columns: 36px 1fr; gap: 10px; align-items: center; transition: transform .25s ease, box-shadow .25s ease; }
.feature:hover { transform: translateY(-4px); box-shadow: 0 16px 30px rgba(17,24,39,0.12); }
.feature__icon { width: 36px; height: 36px; border-radius: 10px; background: linear-gradient(135deg, rgba(59,130,246,0.22), rgba(34,197,94,0.16)); display: grid; place-items: center; color: #1f2a3a; font-weight: 800; position: relative; }
.feature__icon::after { content: ""; position: absolute; inset: -6px; border-radius: 12px; background: radial-gradient(closest-side, rgba(59,130,246,0.28), transparent); opacity: 0; animation: glow 6s ease-in-out infinite; }
.feature__title { margin: 0; font-weight: 600; }
.feature__desc { margin: 4px 0 0; color: var(--muted); font-size: 13px; }
.feature-list .feature:nth-child(1) { transition-delay: 0ms; }
.feature-list .feature:nth-child(2) { transition-delay: 60ms; }
.feature-list .feature:nth-child(3) { transition-delay: 120ms; }
.feature-list .feature:nth-child(4) { transition-delay: 180ms; }
.feature-list .feature:nth-child(5) { transition-delay: 240ms; }
.feature-list .feature:nth-child(6) { transition-delay: 300ms; }

.timeline { display: grid; grid-template-columns: repeat(6, minmax(0,1fr)); gap: 12px; }
.step { background: var(--glass); border: 1px solid var(--border); border-radius: 16px; padding: 16px; transition: transform .25s ease, box-shadow .25s ease; }
.step:hover { transform: translateY(-4px); box-shadow: 0 16px 30px rgba(17,24,39,0.12); }
.step__num { font-weight: 700; color: var(--accent); }
.step__title { margin: 8px 0; font-weight: 600; }
.step__desc { margin: 0; color: var(--muted); font-size: 13px; }

.summary { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 12px; margin: 24px 0; }
.summary__item { background: var(--glass); border: 1px solid var(--border); border-radius: 16px; padding: 16px; text-align: center; }
.summary__label { color: var(--muted); font-size: 13px; }
.summary__value { font-size: 22px; font-weight: 700; background: linear-gradient(90deg, var(--primary), var(--accent)); -webkit-background-clip: text; background-clip: text; color: transparent; }

.table { width: 100%; border: 1px solid rgba(255,255,255,0.08); border-radius: 16px; overflow: hidden; background: rgba(255,255,255,0.04); }
.table__head, .table__row { display: grid; grid-template-columns: 1.2fr 2fr 0.6fr 1fr 0.8fr; gap: 0; }
.table__head { background: rgba(255,255,255,0.06); font-weight: 600; }
.table__cell { padding: 14px 16px; border-bottom: 1px solid rgba(255,255,255,0.08); }
.table__cell--muted { color: var(--muted); }
.badge { display: inline-block; padding: 2px 8px; border-radius: 999px; background: rgba(255,255,255,0.08); font-size: 12px; color: var(--muted); }

.section--stack { padding-bottom: 80px; }
.stack { display: grid; grid-template-columns: repeat(6, minmax(0,1fr)); gap: 12px; }
.tech { background: var(--glass); border: 1px solid var(--border); border-radius: 14px; padding: 12px; text-align: center; }
.tech__name { font-size: 14px; }
.tech__desc { color: var(--muted); font-size: 12px; }

.footer { border-top: 1px solid var(--border); background: rgba(255,255,255,0.7); backdrop-filter: blur(6px); }
.footer__inner { display: flex; align-items: center; justify-content: center; padding: 24px 0; color: var(--muted); }
.footer__actions { display: flex; gap: 12px; }

.reveal { opacity: 0; transform: translateY(12px); transition: all .6s ease; }
.reveal--in { opacity: 1; transform: translateY(0); }

/* import area */


@media (max-width: 1024px) {
  .grid { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .feature-list { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .summary { grid-template-columns: 1fr; }
  .table__head, .table__row { grid-template-columns: 1.2fr 2fr 0.8fr 1fr 0.8fr; }
  .timeline { grid-template-columns: repeat(3, minmax(0,1fr)); }
  .stack { grid-template-columns: repeat(3, minmax(0,1fr)); }
}

@media (max-width: 640px) {
  .header .container { padding-left: 28px; padding-right: 18px; }
  .header__inner { height: auto; padding: 8px 0 10px; flex-direction: column; align-items: flex-start; gap: 6px; }
  .brand__logo { font-size: 16px; }
  .nav { width: 100%; flex-wrap: wrap; gap: 8px 14px; }
  .nav a { font-size: 12px; padding: 4px 2px; }
  .nav a::after { bottom: -4px; }
  .bg__gradient, .bg__orbs { animation-duration: 32s; }
  .card--hot { animation: none; }
  .hero { padding: 72px 0 36px; }
  .hero__title { font-size: 30px; }
  .hero__metrics { grid-template-columns: 1fr; }
  .grid { grid-template-columns: 1fr; }
  .feature-list { grid-template-columns: 1fr; }
  .summary { grid-template-columns: 1fr; }
  .hero__cta { flex-wrap: wrap; }
  .footer__actions { flex-wrap: wrap; gap: 8px; }
  .btn { height: 40px; padding: 0 14px; font-size: 13px; white-space: nowrap; }
  .btn svg { width: 16px; height: 16px; margin-right: 6px; }
  .table-ui thead { display: none; }
  .table-ui, .table-ui tbody, .table-ui tr, .table-ui td { display: block; width: 100%; }
  .table-ui tr { margin-bottom: 12px; border: 1px solid var(--border); border-radius: 14px; background: linear-gradient(180deg, rgba(255,255,255,0.98), rgba(255,255,255,0.92)); box-shadow: 0 8px 24px rgba(24,24,27,0.08); position: relative; }
  .table-ui tr::before { content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 4px; background: linear-gradient(180deg, var(--primary), var(--accent)); border-radius: 14px 0 0 14px; }
  .table-ui td { border-bottom: 1px solid var(--border); position: static; padding: 12px 16px; min-height: initial; word-break: break-word; overflow-wrap: anywhere; }
  .table-ui td::before { content: attr(data-label); display: block; margin-bottom: 6px; font-weight: 600; color: var(--fg); }
  .table-ui td + td { border-top: 1px dashed var(--border); }
  .table-ui td[data-label="模块分类"] .badge { font-size: 14px; font-weight: 700; color: var(--fg); }
  .table-ui td[data-label="模块分类"] .module__icon { width: 24px; height: 24px; }
  .table-ui td:last-child { border-bottom: 0; }
  .timeline { grid-template-columns: 1fr; }
  .stack { grid-template-columns: 1fr; }
}
.table-ui { width: 100%; border: 1px solid rgba(24,24,27,0.10); border-radius: 18px; overflow: hidden; background: rgba(255,255,255,0.92); box-shadow: 0 16px 40px rgba(17,24,39,0.08); }
.table-ui thead th { background: rgba(255,255,255,0.92); text-align: left; padding: 14px 16px; font-weight: 700; color: var(--fg); border-bottom: 1px solid rgba(24,24,27,0.10); }
.table-ui tbody td { padding: 14px 16px; border-bottom: 1px solid rgba(24,24,27,0.10); vertical-align: top; color: #415166; }
.table-ui tbody tr:hover { background: rgba(59,130,246,0.06); }
.table-ui tbody tr:nth-child(even) { background: rgba(59,130,246,0.03); }
.cell-list { margin: 0; padding-left: 18px; }
.cell-list li { margin: 4px 0; }

.module { display: flex; align-items: center; gap: 8px; }
.module__icon { width: 22px; height: 22px; border-radius: 6px; background: linear-gradient(135deg, rgba(91,140,255,0.2), rgba(77,215,230,0.2)); display: grid; place-items: center; }
.module__icon svg { width: 14px; height: 14px; color: var(--primary); }

.table-ui--sub { width: 100%; border: 1px solid var(--border); border-radius: 12px; overflow: hidden; background: rgba(255,255,255,0.96); margin-top: 8px; }
.table-ui--sub thead th { background: rgba(255,255,255,0.85); text-align: left; padding: 12px 14px; font-weight: 600; color: var(--fg); border-bottom: 1px solid var(--border); }
.table-ui--sub tbody td { padding: 12px 14px; border-bottom: 1px solid var(--border); color: var(--muted); }
.table-ui--sub tbody tr:nth-child(even) { background: rgba(91,140,255,0.08); }