body.landing {
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  min-height: 100vh;
  background: var(--surface);
}

/* ---------------- 左侧品牌区 ---------------- */
.landing-left {
  position: relative;
  padding: 46px 56px;
  color: #eaf1ff;
  background:
    radial-gradient(900px 500px at 15% 8%, rgba(96, 165, 250, .30), transparent 62%),
    radial-gradient(700px 460px at 92% 96%, rgba(56, 189, 248, .20), transparent 58%),
    linear-gradient(150deg, #0b1f43 0%, #123a7a 46%, #1e4fa3 100%);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}
.landing-left::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(255, 255, 255, .10) 1px, transparent 1px);
  background-size: 26px 26px;
  opacity: .5;
  pointer-events: none;
}

.brand { display: flex; align-items: center; gap: 14px; position: relative; z-index: 1; }
.brand-mark { display: flex; }
.brand h1 { margin: 0; font-size: 22px; letter-spacing: .5px; font-weight: 700; }
.brand p { margin: 2px 0 0; font-size: 12.5px; color: rgba(234, 241, 255, .66); letter-spacing: .04em; }

.hero { margin-top: 64px; position: relative; z-index: 1; }
.hero h2 { font-size: 34px; line-height: 1.32; margin: 0 0 14px; font-weight: 700; letter-spacing: -.4px; }
.hero p { font-size: 14.5px; line-height: 1.85; color: rgba(234, 241, 255, .78); max-width: 520px; margin: 0; }

.features { list-style: none; padding: 0; margin: 32px 0 0; display: grid; gap: 12px; position: relative; z-index: 1; }
.features li { display: flex; align-items: flex-start; gap: 10px; font-size: 13.5px; color: rgba(234, 241, 255, .86); }
.ft-dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: #7dd3fc; margin-top: 7px; flex: none;
  box-shadow: 0 0 0 4px rgba(125, 211, 252, .18);
}

.server-card {
  margin-top: auto;
  padding: 16px 18px;
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, .08);
  border: 1px solid rgba(255, 255, 255, .14);
  backdrop-filter: blur(6px);
  position: relative;
  z-index: 1;
}
.sc-row { display: flex; justify-content: space-between; font-size: 13px; margin-bottom: 12px; }
.sc-row span { color: rgba(234, 241, 255, .6); }
.sc-row b { font-family: var(--mono); font-weight: 600; }
.sc-ports { display: flex; flex-wrap: wrap; gap: 6px; }
.sc-port {
  font-size: 11.5px;
  font-family: var(--mono);
  padding: 3px 8px;
  border-radius: 6px;
  background: rgba(125, 211, 252, .14);
  border: 1px solid rgba(125, 211, 252, .28);
  color: #d7ecff;
}
.sc-port i { opacity: .6; font-style: normal; }

.landing-foot { margin-top: 18px; font-size: 11.5px; color: rgba(234, 241, 255, .45); position: relative; z-index: 1; }

/* ---------------- 右侧表单 ---------------- */
.landing-right {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 40px 32px;
  background: linear-gradient(180deg, #f7f9fc 0%, #eef1f6 100%);
}

.auth-card {
  width: 100%;
  max-width: 400px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  box-shadow: 0 10px 36px rgba(16, 24, 40, .09);
  padding: 26px 28px 22px;
}

.auth-tabs {
  display: flex;
  gap: 4px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 4px;
  margin-bottom: 24px;
}
.auth-tab {
  flex: 1;
  height: 34px;
  border: none;
  background: transparent;
  border-radius: 7px;
  cursor: pointer;
  font-size: 13.5px;
  color: var(--text-2);
  font-weight: 500;
  transition: all .15s;
}
.auth-tab.active { background: var(--surface); color: var(--primary); box-shadow: var(--shadow-sm); font-weight: 600; }

.auth-body h3 { margin: 0 0 4px; font-size: 19px; letter-spacing: -.2px; }
.auth-body > p { margin: 0 0 22px; }

.auth-submit { width: 100%; height: 40px; margin-top: 4px; font-size: 14px; }

.mail-input { display: flex; align-items: center; gap: 6px; }
.mail-input .input { flex: 1; }
.mail-input .select { width: 138px; flex: none; }
.mail-input span { color: var(--text-3); }

.auth-hint { margin-top: 12px; font-size: 12.5px; min-height: 18px; }
.auth-hint.error { color: var(--danger); }
.auth-hint.ok { color: var(--success); }

.auth-switch { margin-top: 18px; text-align: center; font-size: 13px; color: var(--text-2); }

.auth-session { margin-top: 4px; font-size: 14px; text-align: center; }
.auth-session b { color: var(--text); }
.session-actions { display: flex; gap: 8px; justify-content: center; margin-top: 14px; flex-wrap: wrap; }

.right-foot { margin-top: 22px; font-size: 11.5px; color: var(--text-3); }

.hidden { display: none !important; }

@media (max-width: 960px) {
  body.landing { grid-template-columns: 1fr; }
  .landing-left { padding: 34px 26px; }
  .hero { margin-top: 34px; }
  .hero h2 { font-size: 26px; }
  .server-card { margin-top: 26px; }
  .landing-right { padding: 32px 20px 48px; }
}