:root {
  --ink: #edf7ff;
  --muted: #8ea1b3;
  --bg: #071014;
  --panel: #0d1b22;
  --panel2: #122731;
  --line: rgba(142, 161, 179, 0.22);
  --cyan: #35d4ff;
  --lime: #9cff57;
  --hot: #ff5c7a;
  --amber: #ffbf3f;
  --shadow: 0 20px 60px rgba(0, 0, 0, 0.35);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at 18% 12%, rgba(53, 212, 255, .16), transparent 28%),
    radial-gradient(circle at 88% 22%, rgba(156, 255, 87, .12), transparent 30%),
    linear-gradient(180deg, #071014, #0a1218 55%, #071014);
  font-family: "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
  line-height: 1.62;
}
a { color: inherit; text-decoration: none; }

.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  display: grid;
  grid-template-columns: auto 1fr;
  align-items: center;
  gap: 24px;
  min-height: 76px;
  padding: 0 5vw;
  background: rgba(7, 16, 20, .82);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(18px);
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 230px;
}

.brand-icon {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  color: #071014;
  font-weight: 1000;
  background: var(--cyan);
  border-radius: 2px;
  box-shadow: 8px 8px 0 rgba(156, 255, 87, .35);
}

.brand strong,
.brand small { display: block; }
.brand small { color: var(--muted); font-size: 12px; }

.nav {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
}

.nav a {
  padding: 9px 12px;
  color: #cfe3ee;
  font-size: 14px;
  border: 1px solid transparent;
}

.nav a:hover {
  color: var(--cyan);
  border-color: var(--line);
  background: rgba(255,255,255,.04);
}

.kicker {
  margin: 0 0 10px;
  color: var(--lime);
  font-size: 12px;
  font-weight: 1000;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1, h2, h3, p { margin-top: 0; }

.hero-v2 {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(360px, .95fr);
  gap: 28px;
  min-height: calc(100vh - 76px);
  padding: 58px 5vw;
  overflow: hidden;
}

.hero-v2::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(rgba(53,212,255,.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(53,212,255,.08) 1px, transparent 1px);
  background-size: 42px 42px;
  mask-image: linear-gradient(180deg, black, transparent 82%);
}

.hero-copy,
.hero-board {
  position: relative;
  z-index: 1;
}

.hero-copy {
  align-self: center;
  padding: 34px;
  background: linear-gradient(145deg, rgba(13,27,34,.86), rgba(13,27,34,.58));
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}

.hero-copy h1 {
  max-width: 860px;
  margin-bottom: 18px;
  font-size: clamp(38px, 6.2vw, 78px);
  line-height: 1.02;
  text-transform: uppercase;
}

.hero-copy p:not(.kicker) {
  max-width: 680px;
  color: var(--muted);
  font-size: 18px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.solid-btn,
.ghost-btn,
.admin-form button,
.admin-head button,
.table-actions button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 0 16px;
  color: #071014;
  background: var(--cyan);
  border: 1px solid var(--cyan);
  border-radius: 2px;
  font-weight: 1000;
}

.ghost-btn {
  color: var(--cyan);
  background: transparent;
}

.hero-board {
  align-self: center;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.hero-board div {
  min-height: 150px;
  padding: 24px;
  background: var(--panel);
  border: 1px solid var(--line);
}

.hero-board b {
  display: block;
  color: var(--lime);
  font-size: 44px;
  line-height: 1;
}

.hero-board span { color: var(--muted); }

.product-strip,
.capability,
.process,
.quality-zone,
.news-ticker,
.page-head,
.list-wrap,
.detail-page,
.admin-screen {
  padding: 72px 5vw;
}

.section-title h2,
.capability h2,
.page-head h1,
.admin-panel h1 {
  margin-bottom: 12px;
  font-size: clamp(28px, 4.8vw, 58px);
  line-height: 1.08;
}

.product-row {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.product-row article,
.quality-grid article,
.ticker-item,
.list-item,
.admin-panel,
.login-box,
.side-news {
  background: linear-gradient(145deg, rgba(18,39,49,.96), rgba(13,27,34,.96));
  border: 1px solid var(--line);
  border-radius: 2px;
  box-shadow: var(--shadow);
}

.product-row article {
  min-height: 260px;
  padding: 24px;
}

.product-row span,
.ticker-item span,
.list-no {
  color: var(--hot);
  font-size: 34px;
  font-weight: 1000;
  line-height: 1;
}

.product-row p,
.quality-grid p,
.ticker-item small,
.list-item p,
.detail-page header p,
.article-body p {
  color: var(--muted);
}

.capability {
  display: grid;
  grid-template-columns: minmax(0, .8fr) minmax(320px, 1.2fr);
  gap: 36px;
  background: rgba(255,255,255,.03);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.capability ul {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  padding: 0;
  margin: 0;
  list-style: none;
}

.capability li {
  padding: 18px;
  color: #dcebf2;
  background: var(--panel);
  border: 1px solid var(--line);
}

.process {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.step {
  min-height: 230px;
  padding: 24px;
  background: #061a22;
  border: 1px solid rgba(53,212,255,.32);
}

.step b {
  color: var(--cyan);
  font-size: 40px;
}

.quality-grid,
.ticker-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.quality-grid article {
  padding: 24px;
}

.row-title {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 18px;
}

.row-title a {
  color: var(--cyan);
  font-weight: 1000;
}

.ticker-list {
  grid-template-columns: repeat(5, minmax(0, 1fr));
}

.ticker-item {
  display: grid;
  gap: 8px;
  min-height: 205px;
  padding: 20px;
}

.ticker-item a,
.list-item h2 a {
  font-weight: 1000;
}

.page-head {
  background:
    linear-gradient(rgba(53,212,255,.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(53,212,255,.08) 1px, transparent 1px),
    var(--panel);
  background-size: 42px 42px;
}

.page-head p:last-child { color: var(--muted); }

.list-wrap {
  display: grid;
  gap: 14px;
}

.list-item {
  display: grid;
  grid-template-columns: 88px 1fr;
  gap: 22px;
  padding: 22px;
}

.list-item span {
  color: var(--lime);
  font-weight: 1000;
}

.detail-page { background: rgba(255,255,255,.02); }

.breadcrumb {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 28px;
  color: var(--muted);
}

.breadcrumb a { color: var(--cyan); }

.detail-page h1 {
  max-width: 1040px;
  font-size: clamp(34px, 5.5vw, 70px);
  line-height: 1.04;
}

.detail-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 320px;
  gap: 32px;
}

.article-body {
  max-width: 860px;
  font-size: 18px;
}

.side-news {
  display: grid;
  gap: 14px;
  padding: 22px;
  box-shadow: none;
}

.side-news a {
  padding-top: 12px;
  border-top: 1px solid var(--line);
}

.admin-screen {
  min-height: calc(100vh - 76px);
}

.login-box,
.admin-panel {
  max-width: 520px;
  margin: 0 auto;
  padding: 28px;
}

.admin-screen.wide .admin-panel { max-width: 1200px; }
.narrow-panel { max-width: 720px; }

.admin-head {
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: 18px;
  margin-bottom: 24px;
}

.admin-head nav,
.table-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.admin-grid {
  display: grid;
  grid-template-columns: minmax(320px, .8fr) minmax(0, 1.2fr);
  gap: 24px;
}

.admin-form {
  display: grid;
  gap: 14px;
}

.admin-form label {
  display: grid;
  gap: 6px;
  color: #d8e7ef;
  font-size: 14px;
  font-weight: 1000;
}

.admin-form input,
.admin-form textarea {
  width: 100%;
  padding: 12px 13px;
  color: var(--ink);
  background: #071014;
  font: inherit;
  border: 1px solid var(--line);
}

.alert {
  padding: 10px 12px;
  color: #ffd6df;
  background: rgba(255,92,122,.12);
  border: 1px solid rgba(255,92,122,.32);
}

.table-wrap { overflow-x: auto; }
table {
  width: 100%;
  min-width: 680px;
  border-collapse: collapse;
}
th, td {
  padding: 12px;
  text-align: left;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}
th { color: var(--lime); background: rgba(255,255,255,.04); }
.table-actions form { margin: 0; }
.table-actions button {
  color: #fff;
  background: var(--hot);
  border-color: var(--hot);
}

.footer {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding: 28px 5vw;
  color: #d8e7ef;
  background: #050a0d;
  border-top: 1px solid var(--line);
}

.footer span { color: var(--muted); }

@media (max-width: 980px) {
  .topbar {
    grid-template-columns: 1fr;
    padding: 14px 5vw;
  }

  .nav {
    justify-content: flex-start;
    overflow-x: auto;
    white-space: nowrap;
  }

  .hero-v2,
  .capability,
  .detail-layout,
  .admin-grid {
    grid-template-columns: 1fr;
  }

  .product-row,
  .process,
  .quality-grid,
  .ticker-list,
  .capability ul {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 640px) {
  .brand { min-width: 0; }

  .hero-v2,
  .product-strip,
  .capability,
  .process,
  .quality-zone,
  .news-ticker,
  .page-head,
  .list-wrap,
  .detail-page,
  .admin-screen {
    padding-left: 18px;
    padding-right: 18px;
  }

  .hero-v2 { min-height: auto; }
  .hero-copy { padding: 24px; }
  .hero-copy h1 { font-size: 36px; }

  .hero-board,
  .product-row,
  .process,
  .quality-grid,
  .ticker-list,
  .capability ul,
  .list-item {
    grid-template-columns: 1fr;
  }

  .row-title,
  .admin-head,
  .footer {
    display: block;
  }
}