/* 天和硅业 — 全屏 Loading */

body.is-loading {
  overflow: hidden;
}

.th-loader {
  position: fixed;
  inset: 0;
  z-index: 999999;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #07080f;
  overflow: hidden;
  transition: visibility 0s linear 0.7s;
}

.th-loader.is-leaving {
  pointer-events: none;
  visibility: hidden;
}

.th-loader-bg {
  position: absolute;
  inset: 0;
  overflow: hidden;
}

.th-loader-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.55;
  animation: thLoaderOrb 8s ease-in-out infinite;
}

.th-loader-orb--1 {
  width: 420px;
  height: 420px;
  top: -12%;
  left: -8%;
  background: radial-gradient(circle, #0c0cde 0%, transparent 70%);
  animation-delay: 0s;
}

.th-loader-orb--2 {
  width: 360px;
  height: 360px;
  right: -10%;
  bottom: -15%;
  background: radial-gradient(circle, #d4141a 0%, transparent 70%);
  animation-delay: -3s;
}

.th-loader-orb--3 {
  width: 280px;
  height: 280px;
  top: 40%;
  left: 55%;
  background: radial-gradient(circle, #1a3aff 0%, transparent 70%);
  animation-delay: -5s;
}

@keyframes thLoaderOrb {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(30px, -20px) scale(1.08); }
  66% { transform: translate(-20px, 25px) scale(0.94); }
}

.th-loader-grid {
  position: absolute;
  inset: -50%;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 48px 48px;
  transform: perspective(600px) rotateX(58deg) translateY(-10%);
  animation: thLoaderGrid 20s linear infinite;
  mask-image: radial-gradient(ellipse 70% 60% at 50% 50%, #000 20%, transparent 75%);
}

@keyframes thLoaderGrid {
  0% { transform: perspective(600px) rotateX(58deg) translateY(-10%) translateZ(0); }
  100% { transform: perspective(600px) rotateX(58deg) translateY(-10%) translateZ(120px); }
}

.th-loader-scan {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 0%, rgba(12, 12, 222, 0.06) 50%, transparent 100%);
  background-size: 100% 200%;
  animation: thLoaderScan 2.4s ease-in-out infinite;
  pointer-events: none;
}

@keyframes thLoaderScan {
  0% { background-position: 0 -100%; }
  100% { background-position: 0 200%; }
}

.th-loader-stage {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 24px;
}

.th-loader-ring {
  position: relative;
  width: 120px;
  height: 120px;
  margin-bottom: 28px;
}

.th-loader-ring svg {
  width: 100%;
  height: 100%;
  transform: rotate(-90deg);
}

.th-loader-ring-bg {
  fill: none;
  stroke: rgba(255, 255, 255, 0.08);
  stroke-width: 2;
}

.th-loader-ring-fill {
  fill: none;
  stroke: url(#thLoaderGrad);
  stroke-width: 2.5;
  stroke-linecap: round;
  stroke-dasharray: 326.7;
  stroke-dashoffset: 326.7;
  transition: stroke-dashoffset 0.35s cubic-bezier(0.22, 1, 0.36, 1);
  filter: drop-shadow(0 0 8px rgba(12, 12, 222, 0.6));
}

.th-loader-logo {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  height: 44px;
  width: auto;
  animation: thLoaderLogoPulse 2s ease-in-out infinite;
}

@keyframes thLoaderLogoPulse {
  0%, 100% { transform: translate(-50%, -50%) scale(1); opacity: 1; }
  50% { transform: translate(-50%, -50%) scale(1.04); opacity: 0.92; }
}

.th-loader-brand {
  margin: 0 0 6px;
  font-family: 'Outfit', sans-serif;
  font-size: 28px;
  font-weight: 700;
  letter-spacing: 0.06em;
  background: linear-gradient(90deg, #fff 0%, #a8b4ff 40%, #fff 80%);
  background-size: 200% auto;
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: thLoaderShimmer 2.5s linear infinite;
}

@keyframes thLoaderShimmer {
  0% { background-position: 0% center; }
  100% { background-position: 200% center; }
}

.th-loader-tagline {
  margin: 0 0 32px;
  font-size: 12px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.38);
}

.th-loader-progress {
  width: min(280px, 72vw);
  height: 2px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 2px;
  overflow: hidden;
  margin-bottom: 12px;
}

.th-loader-progress-bar {
  width: 0%;
  height: 100%;
  background: linear-gradient(90deg, #0c0cde, #4f52ff, #0c0cde);
  background-size: 200% 100%;
  border-radius: 2px;
  animation: thLoaderBarGlow 1.5s linear infinite;
  transition: width 0.35s cubic-bezier(0.22, 1, 0.36, 1);
}

@keyframes thLoaderBarGlow {
  0% { background-position: 0% 0; }
  100% { background-position: 200% 0; }
}

.th-loader-pct {
  font-family: 'Outfit', sans-serif;
  font-size: 13px;
  font-weight: 500;
  font-variant-numeric: tabular-nums;
  color: rgba(255, 255, 255, 0.45);
  letter-spacing: 0.08em;
}

.th-loader-pct::after {
  content: '%';
  margin-left: 1px;
  font-size: 11px;
  opacity: 0.7;
}

.th-loader.is-leaving .th-loader-stage {
  animation: thLoaderStageOut 0.65s cubic-bezier(0.22, 1, 0.36, 1) forwards;
}

@keyframes thLoaderStageOut {
  to {
    opacity: 0;
    transform: scale(0.92) translateY(-16px);
  }
}

.th-loader.is-leaving {
  animation: thLoaderCurtain 0.75s cubic-bezier(0.77, 0, 0.18, 1) forwards;
}

@keyframes thLoaderCurtain {
  0% {
    clip-path: inset(0 0 0 0);
    opacity: 1;
  }
  100% {
    clip-path: inset(0 0 100% 0);
    opacity: 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .th-loader { display: none !important; }
  body.is-loading { overflow: auto; }
}

@media (max-width: 768px) {
  .th-loader-brand { font-size: 24px; }
  .th-loader-tagline { font-size: 10px; letter-spacing: 0.16em; margin-bottom: 24px; }
  .th-loader-ring { width: 100px; height: 100px; margin-bottom: 22px; }
  .th-loader-logo { height: 38px; }
}