:root {
  --bg: #080b13;
  --card: rgba(255,255,255,.075);
  --card2: rgba(255,255,255,.11);
  --text: #f5f7fb;
  --muted: #aeb7c8;
  --line: rgba(255,255,255,.14);
  --primary: #6d5dfc;
  --primary2: #13d8ff;
  --danger: #ff4d6d;
  --ok: #35d07f;
  --shadow: 0 20px 60px rgba(0,0,0,.35);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 15% 10%, rgba(109,93,252,.35), transparent 30%),
    radial-gradient(circle at 85% 5%, rgba(19,216,255,.18), transparent 32%),
    linear-gradient(180deg, #080b13 0%, #101522 100%);
  min-height: 100vh;
}

a {
  color: inherit;
  text-decoration: none;
}

.page {
  width: 100%;
  min-height: 100vh;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 5vw;
  backdrop-filter: blur(18px);
  background: rgba(8,11,19,.68);
  border-bottom: 1px solid var(--line);
}

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

.logo {
  width: 42px;
  height: 42px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--primary), var(--primary2));
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 900;
  box-shadow: 0 10px 30px rgba(109,93,252,.35);
}

.brand-name {
  font-size: 18px;
  font-weight: 800;
}

.brand-slogan {
  font-size: 12px;
  color: var(--muted);
  margin-top: 2px;
}

.admin-link {
  font-size: 14px;
  color: var(--muted);
  padding: 8px 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
}

.main {
  width: min(1180px, 92vw);
  margin: 0 auto;
  padding: 34px 0 60px;
}

.hero {
  display: grid;
  grid-template-columns: 1.2fr .8fr;
  gap: 24px;
  align-items: stretch;
  margin-bottom: 22px;
}

.hero h1 {
  font-size: clamp(34px, 6vw, 68px);
  line-height: 1.05;
  margin: 26px 0 18px;
  letter-spacing: -1.8px;
}

.hero p {
  font-size: 18px;
  color: var(--muted);
  line-height: 1.7;
  max-width: 760px;
}

.hero-card {
  padding: 20px;
  border: 1px solid var(--line);
  background: var(--card);
  border-radius: 28px;
  box-shadow: var(--shadow);
  display: grid;
  gap: 14px;
}

.stat {
  padding: 18px;
  border-radius: 20px;
  background: rgba(255,255,255,.07);
  border: 1px solid var(--line);
}

.stat b {
  display: block;
  font-size: 24px;
}

.stat span {
  display: block;
  margin-top: 8px;
  color: var(--muted);
}

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 26px;
  padding: 22px;
  box-shadow: var(--shadow);
  margin-bottom: 18px;
}

.card-title {
  margin-bottom: 18px;
}

.card-title h2 {
  margin: 0 0 8px;
  font-size: 24px;
}

.card-title p {
  margin: 0;
  color: var(--muted);
  line-height: 1.6;
}

.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

label {
  display: block;
  margin-bottom: 14px;
}

label span {
  display: block;
  margin-bottom: 8px;
  color: #dce3f3;
  font-size: 14px;
}

input,
select,
textarea {
  width: 100%;
  border: 1px solid var(--line);
  background: rgba(0,0,0,.25);
  color: var(--text);
  border-radius: 16px;
  padding: 13px 14px;
  outline: none;
  font-size: 15px;
}

textarea {
  resize: vertical;
}

input:focus,
select:focus,
textarea:focus {
  border-color: rgba(19,216,255,.65);
  box-shadow: 0 0 0 4px rgba(19,216,255,.08);
}

.row {
  display: flex;
  gap: 10px;
  align-items: center;
  flex-wrap: wrap;
}

.check {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 0;
}

.check input {
  width: auto;
}

.check span {
  margin: 0;
}

.btn {
  border: 0;
  color: white;
  background: var(--card2);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 12px 18px;
  font-weight: 700;
  cursor: pointer;
  transition: .18s;
}

.btn:hover {
  transform: translateY(-1px);
  background: rgba(255,255,255,.16);
}

.btn.primary {
  background: linear-gradient(135deg, var(--primary), var(--primary2));
  border: 0;
}

.btn.secondary {
  color: #dbe6ff;
}

.notice {
  margin-top: 14px;
  padding: 12px 14px;
  background: rgba(19,216,255,.08);
  border: 1px solid rgba(19,216,255,.2);
  border-radius: 16px;
  color: #cfefff;
  font-size: 14px;
}

.tabs {
  display: flex;
  gap: 10px;
  margin: 18px 0;
  overflow-x: auto;
  padding-bottom: 4px;
}

.tab {
  flex: 0 0 auto;
  background: rgba(255,255,255,.08);
  color: var(--muted);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 12px 18px;
  font-weight: 800;
  cursor: pointer;
}

.tab.active {
  color: white;
  background: linear-gradient(135deg, rgba(109,93,252,.9), rgba(19,216,255,.65));
}

.panel {
  display: none;
}

.panel.active {
  display: block;
}

.params {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

.params label.full {
  grid-column: 1 / -1;
}

.status {
  margin-top: 14px;
  color: var(--muted);
  line-height: 1.6;
  white-space: pre-wrap;
}

.status.ok {
  color: var(--ok);
}

.status.err {
  color: var(--danger);
}

.result {
  margin-top: 18px;
}

.result img,
.result video {
  width: 100%;
  max-height: 760px;
  object-fit: contain;
  border-radius: 22px;
  border: 1px solid var(--line);
  background: #000;
}

.result pre {
  white-space: pre-wrap;
  word-break: break-word;
  background: rgba(0,0,0,.28);
  padding: 14px;
  border-radius: 16px;
  border: 1px solid var(--line);
}

.result a {
  color: #9be9ff;
  text-decoration: underline;
}

.chat-box {
  height: 380px;
  overflow: auto;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 20px;
  background: rgba(0,0,0,.22);
  margin-bottom: 14px;
}

.msg {
  margin-bottom: 12px;
  display: flex;
}

.msg.user {
  justify-content: flex-end;
}

.bubble {
  max-width: 82%;
  padding: 12px 14px;
  border-radius: 18px;
  line-height: 1.65;
  white-space: pre-wrap;
  word-break: break-word;
}

.msg.user .bubble {
  background: linear-gradient(135deg, rgba(109,93,252,.9), rgba(19,216,255,.48));
}

.msg.assistant .bubble {
  background: rgba(255,255,255,.09);
  border: 1px solid var(--line);
}

.footer {
  text-align: center;
  padding: 28px;
  color: var(--muted);
  border-top: 1px solid var(--line);
}

.upload-row {
  display: flex;
  gap: 10px;
  align-items: center;
  flex-wrap: wrap;
}

.upload-row input[type=file] {
  max-width: 320px;
}

@media (max-width: 820px) {
  .topbar {
    padding: 13px 4vw;
  }

  .brand-slogan {
    display: none;
  }

  .hero {
    grid-template-columns: 1fr;
  }

  .hero h1 {
    margin-top: 10px;
  }

  .grid-2,
  .params {
    grid-template-columns: 1fr;
  }

  .card {
    padding: 18px;
    border-radius: 22px;
  }

  .btn {
    width: 100%;
  }

  .row .btn {
    flex: 1 1 160px;
  }

  .hero-card {
    border-radius: 22px;
  }

  .chat-box {
    height: 320px;
  }

  .bubble {
    max-width: 92%;
  }
}