/* V5.3 — Loading · 铜罗盘推演 */

#loading {
  display: none;
}

.loading {
  overflow: hidden;
  background-color: var(--color-bg);
  padding-inline: 24px;
  padding-block: calc(24px + env(safe-area-inset-top, 0px))
    calc(24px + env(safe-area-inset-bottom, 0px));
}

/* ── 五层背景 + 道观罗盘摄影 ── */

.loading__scene {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

/* Layer 1：道观内景 + 地面罗盘（内容在左，罗盘在右） */
.loading__scene::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  background-color: var(--color-bg);
  background-image: url("../assets/backgrounds/scene-study-mystic-v2.png");
  background-size: cover;
  background-position: 58% center;
  background-repeat: no-repeat;
}

.loading__layer {
  position: absolute;
  inset: 0;
}

/* 摄影背景下隐藏 SVG 山峦 */
.loading__layer--mountain-far,
.loading__layer--mountain-mid,
.loading__layer--mountain-near {
  display: none;
}

.loading__layer--paper {
  z-index: 1;
  background: url("../assets/svg/paper.svg") center / 480px repeat;
  opacity: 0.012;
}

.loading__layer--mist {
  z-index: 2;
  background: url("../assets/svg/yunwen.svg") center 45% / 130% auto no-repeat;
  opacity: 0.025;
  filter: blur(10px);
  animation: loading-mist var(--duration-hero-mist) ease-in-out infinite alternate;
}

.loading__layer--stars {
  z-index: 2;
  background: url("../assets/svg/xingtu.svg") center / cover no-repeat;
  opacity: 0.02;
  animation: loading-stars-breathe var(--duration-hero-stars) ease-in-out infinite;
}

/* ── 内容：纵向居中 ── */

.loading__inner {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: center;
  gap: 28px;
  width: 100%;
  max-width: var(--content-max);
  min-height: calc(100dvh - 48px - env(safe-area-inset-top, 0px) - env(safe-area-inset-bottom, 0px));
  margin-inline: auto;
  text-align: left;
}

/* 左侧内容区压暗，与背景罗盘区分离 */
.loading__inner::before {
  content: "";
  position: absolute;
  inset: -24px -20px -24px -28px;
  z-index: -1;
  pointer-events: none;
  background: linear-gradient(
    100deg,
    rgba(16, 14, 12, 0.88) 0%,
    rgba(16, 14, 12, 0.62) 50%,
    rgba(16, 14, 12, 0.2) 78%,
    transparent 100%
  );
}

/* ── 铜罗盘 ── */

.loading__compass-wrap {
  position: relative;
  align-self: center;
  width: 260px;
  height: 260px;
  margin-bottom: 4px;
  filter: drop-shadow(0 0 24px rgba(16, 14, 12, 0.45));
}

.loading__bagua {
  position: absolute;
  inset: 0;
  background: url("../assets/svg/bagua.svg") center / 92% no-repeat;
  opacity: 0.02;
}

.loading__luopan {
  position: absolute;
  inset: 0;
  background: url("../assets/svg/luopan-large.svg") center / contain no-repeat;
  animation: luopanRotate var(--duration-luopan) linear infinite;
}

/* ── 标题 ── */

.loading__header {
  display: flex;
  flex-direction: column;
  gap: 12px;
  width: 100%;
}

.loading__title {
  font-family: var(--font-serif);
  font-size: clamp(1.5rem, 7vw, 1.875rem);
  font-weight: 500;
  line-height: 1.4;
  letter-spacing: 0.08em;
  color: var(--color-text);
}

.loading__subtitle {
  font-family: var(--font-serif);
  font-size: 15px;
  font-weight: 400;
  line-height: 1.85;
  letter-spacing: 0.04em;
  color: var(--color-text-secondary);
}

.loading__rule {
  width: 100%;
  height: 0;
  border-top: 1px solid var(--color-border);
}

/* ── 四步流程（古典样式） ── */

.loading__steps {
  display: flex;
  flex-direction: column;
  gap: 14px;
  width: 100%;
  max-width: 20em;
  margin: 0;
  padding: 0;
  list-style: none;
}

.loading__step {
  display: flex;
  align-items: baseline;
  gap: 10px;
  font-family: var(--font-serif);
  font-size: 15px;
  font-weight: 400;
  line-height: 1.65;
  letter-spacing: 0.04em;
  transition: color var(--duration-step) var(--ease-out), opacity var(--duration-step) var(--ease-out);
}

.loading__step-mark {
  flex-shrink: 0;
  width: 1.25em;
  text-align: center;
  font-size: 13px;
  line-height: 1;
}

.loading__step--done,
.loading__step--done .loading__step-label {
  color: var(--color-bronze);
}

.loading__step--done .loading__step-mark {
  color: var(--color-bronze);
}

.loading__step--active,
.loading__step--active .loading__step-label {
  color: var(--color-text);
}

.loading__step--active .loading__step-mark {
  color: var(--color-text);
}

.loading__step--pending,
.loading__step--pending .loading__step-label {
  color: color-mix(in srgb, var(--color-text-muted) 45%, transparent);
}

.loading__step--pending .loading__step-mark {
  color: color-mix(in srgb, var(--color-text-muted) 40%, transparent);
}

/* ── 底部提示 ── */

.loading__footer {
  width: 100%;
  max-width: 20em;
  font-family: var(--font-serif);
  font-size: 13px;
  font-weight: 400;
  line-height: 1.85;
  letter-spacing: 0.04em;
  color: var(--color-text-muted);
}

/* ── 移动端 375px ── */

@media (max-width: 430px) {
  .loading {
    padding-inline: 24px;
    padding-block: calc(24px + env(safe-area-inset-top, 0px))
      calc(24px + env(safe-area-inset-bottom, 0px));
  }

  .loading__scene::before {
    background-position: center 30%;
  }

  .loading__inner::before {
    background: linear-gradient(
      180deg,
      rgba(16, 14, 12, 0.9) 0%,
      rgba(16, 14, 12, 0.55) 45%,
      transparent 80%
    );
  }

  .loading__compass-wrap {
    width: 180px;
    height: 180px;
  }

  .loading__inner {
    gap: 24px;
  }
}

@media (min-width: 768px) {
  .loading {
    padding-inline: var(--space-page-x);
  }

  .loading__inner {
    max-width: var(--content-max);
  }
}

@media (prefers-reduced-motion: reduce) {
  .loading__luopan {
    animation: none;
  }

  .loading__layer--mist,
  .loading__layer--stars {
    animation: none;
  }
}

/* V33 · 加载页主内容上移，避免首屏留白过多 */
.loading__inner { justify-content:flex-start; padding-top:clamp(58px,10dvh,108px); box-sizing:border-box; }
@media (max-width:430px) { .loading__inner { padding-top:clamp(48px,8dvh,72px); gap:20px; } }

/* V34 · 移动端背景可见性：降低内容区黑色蒙层，不牺牲核心文字对比度 */
@media (max-width: 767px) {
  .hero__inner::before,
  .consultation__inner::before,
  .loading__inner::before,
  .result__inner::before,
  .unlock__inner::before {
    background: linear-gradient(180deg, rgba(12,10,8,.68) 0%, rgba(12,10,8,.48) 52%, rgba(12,10,8,.30) 100%);
  }
  .hero__scene::before,
  .consultation__scene::before,
  .loading__scene::before { filter: brightness(1.08) saturate(1.06); }
}