/* ===================================================================
   Adventurer's Stone — style.css  v2  Deep Space Immersive Edition
   scroll-snap · liquid flow · glassmorphism · transparent text
   ================================================================ */

:root {
  /* ── 深空色调（纯黑+金，无紫色） ── */
  --c-void:       #050508;
  --c-abyss:      #090a0e;
  --c-nebula:     #0e1015;
  --c-cosmos:     #141820;

  /* ── 金色强调 ── */
  --c-gold:       #c99b43;
  --c-gold-hi:    #f3d488;
  --c-gold-soft:  rgba(201,155,67,0.35);
  --c-gold-mute:  rgba(201,155,67,0.20);
  --c-gold-faint: rgba(201,155,67,0.08);

  /* ── 文字（白色+金色） ── */
  --c-text:       #f0ece4;
  --c-text-mute:  #a09580;
  --c-text-dark:  #0a0a0a;

  /* ── 玻璃 ── */
  --glass-bg:     rgba(10, 10, 14, 0.55);
  --glass-border: rgba(201,155,67,0.12);
  --glass-blur:   18px;

  /* ── 字体 & 动效 ── */
  --serif: "Georgia", "Palatino Linotype", "Book Antiqua", serif;
  --ease:  cubic-bezier(0.22, 0.61, 0.36, 1);
  --ease-slow: cubic-bezier(0.16, 1, 0.3, 1);
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

[hidden] {
  display: none !important;
}

html {
  scroll-behavior: smooth;
  overflow: hidden;
  height: 100%;
}

body {
  font-family: var(--serif);
  background: var(--c-void);
  color: var(--c-text);
  line-height: 1.65;
  overflow: hidden;
  height: 100%;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

/* ================================================================
   1. DECK — scroll-snap 全屏分镜容器
   ================================================================ */
.deck {
  width: 100%;
  height: 100vh;
  height: 100dvh;
  overflow-y: scroll;
  overflow-x: hidden;
  scroll-snap-type: y mandatory;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;          /* Firefox */
}
.deck::-webkit-scrollbar { display: none; }   /* Chrome / Safari */

/* ── 固定视觉层（不随滚动） ── */
.fixed-layers {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
}

/* 星云背景 */
.nebula-bg {
  position: absolute;
  inset: -40px;               /* 稍大于视口，给呼吸留余量 */
  background:
    url("assets/nebula.jpg") center / cover no-repeat,
    var(--c-void);
  filter: brightness(0.45) saturate(1.3);
  animation: nebulaBreath 40s var(--ease-slow) infinite alternate;
}

@keyframes nebulaBreath {
  0%   { transform: scale(1)    translate(0, 0); }
  50%  { transform: scale(1.06) translate(-12px, 8px); }
  100% { transform: scale(1)    translate(8px, -6px); }
}

/* 液态波动叠加层 */
.liquid-wave {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 30% 70%, rgba(201,155,67, 0.08) 0%, transparent 70%),
    radial-gradient(ellipse 70% 50% at 75% 25%, rgba(243,212,136, 0.06) 0%, transparent 60%),
    radial-gradient(ellipse 90% 70% at 50% 50%, rgba(40,35,25, 0.15) 0%, transparent 80%);
  animation: liquidShift 35s var(--ease-slow) infinite alternate;
  mix-blend-mode: screen;
}

@keyframes liquidShift {
  0%   { transform: scale(1.1) rotate(0deg);   opacity: 0.7; }
  33%  { transform: scale(1.15) rotate(0.5deg); opacity: 0.9; }
  66%  { transform: scale(1.08) rotate(-0.3deg); opacity: 0.8; }
  100% { transform: scale(1.12) rotate(0.2deg); opacity: 0.85; }
}

/* Canvas 星尘 */
.starfield {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

/* ── 暗角（纵深氛围） ── */
.fixed-layers::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at center, transparent 50%, var(--c-void) 100%);
  pointer-events: none;
  z-index: 1;
}

/* ================================================================
   2. SCENE — 每屏分镜
   ================================================================ */
.scene {
  position: relative;
  z-index: 1;
  height: 100vh;
  height: 100dvh;
  scroll-snap-align: start;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 60px 80px 60px 120px;      /* 左侧留给导航 */
  overflow: hidden;
}

.scene__inner {
  max-width: 860px;
  width: 100%;
  position: relative;
  z-index: 2;
}

/* ================================================================
   3. SIDENAV — 左侧玻璃导航
   ================================================================ */
.sidenav {
  position: fixed;
  left: 0;
  top: 0;
  height: 100%;
  z-index: 100;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0;
  padding: 20px 0;
  width: 80px;
  background: linear-gradient(180deg,
    rgba(5,5,8,0.0) 0%,
    rgba(5,5,8,0.6) 20%,
    rgba(5,5,8,0.75) 50%,
    rgba(5,5,8,0.6) 80%,
    rgba(5,5,8,0.0) 100%
  );
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border-right: 1px solid var(--glass-border);
}

.sidenav__logo {
  font-size: 16px;
  font-weight: bold;
  letter-spacing: 2px;
  color: var(--c-gold);
  margin-bottom: 32px;
}

.sidenav__track {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.sidenav__dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  border: 1px solid var(--c-gold-mute);
  background: transparent;
  transition: all 0.4s var(--ease);
  position: relative;
}

.sidenav__dot::before {
  content: attr(aria-label);
  position: absolute;
  left: 22px;
  top: 50%;
  transform: translateY(-50%);
  white-space: nowrap;
  font-size: 11px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--c-gold);
  opacity: 0;
  transition: opacity 0.3s var(--ease), transform 0.3s var(--ease);
  pointer-events: none;
}

.sidenav__dot:hover::before {
  opacity: 1;
  transform: translateY(-50%) translateX(4px);
}

.sidenav__dot.active {
  background: var(--c-gold);
  border-color: var(--c-gold);
  box-shadow: 0 0 12px var(--c-gold-soft), 0 0 4px var(--c-gold);
}

.sidenav__dot.active::before {
  opacity: 1;
  transform: translateY(-50%) translateX(4px);
}

/* 隐藏旧版标签（现用 ::before 替代） */
.sidenav__labels { display: none; }

/* ================================================================
   4. TYPOGRAPHY — 透明渐变文字
   ================================================================ */
.eyebrow {
  color: var(--c-gold);
  font-size: 12px;
  letter-spacing: 5px;
  text-transform: uppercase;
  margin-bottom: 20px;
}

h1, h2 {
  font-weight: normal;
  line-height: 1.12;
  color: var(--c-text);
}

/* Hero 大标题 */
.hero-title {
  font-size: clamp(36px, 5.5vw, 72px);
  margin-bottom: 24px;
  background: linear-gradient(
    135deg,
    #f0ece4 0%,
    #c99b43 35%,
    #f3d488 55%,
    #f0ece4 100%
  );
  background-size: 200% 200%;
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: gradientShimmer 8s var(--ease-slow) infinite;
}

@keyframes gradientShimmer {
  0%   { background-position: 0% 50%; }
  50%  { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

.hero-title .word {
  display: inline-block;
  opacity: 0;
  transform: translateY(30px);
  animation: wordIn 0.8s var(--ease) forwards;
}

@keyframes wordIn {
  to { opacity: 1; transform: translateY(0); }
}

.hero-desc {
  font-size: 18px;
  color: var(--c-text-mute);
  max-width: 580px;
  margin-bottom: 36px;
  line-height: 1.7;
}

/* 通用 h2 */
.scene h2 {
  font-size: clamp(28px, 3.5vw, 48px);
  margin-bottom: 16px;
}

/* ================================================================
   5. BUTTONS — 玻璃扫光
   ================================================================ */
.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.btn {
  position: relative;
  display: inline-block;
  padding: 14px 32px;
  border: 1px solid var(--c-gold-soft);
  text-transform: uppercase;
  letter-spacing: 1.8px;
  font-size: 12px;
  font-family: var(--serif);
  overflow: hidden;
  z-index: 0;
  transition: color 0.4s var(--ease), border-color 0.4s var(--ease);
  cursor: pointer;
}

.btn::before {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--c-gold);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.5s var(--ease);
  z-index: -1;
}

.btn-glow {
  background: var(--c-gold);
  color: var(--c-text-dark);
  box-shadow: 0 0 30px var(--c-gold-mute), 0 0 60px rgba(201,155,67,0.08);
}
.btn-glow::before { background: var(--c-gold-hi); }
.btn-glow:hover { color: var(--c-text-dark); }
.btn-glow:hover::before { transform: scaleX(1); }

.btn-ghost:hover { color: var(--c-text-dark); }
.btn-ghost:hover::before { transform: scaleX(1); }

/* Scroll cue */
.scroll-cue {
  position: absolute;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  width: 24px; height: 40px;
  border: 1px solid var(--c-gold-mute);
  border-radius: 12px;
  display: flex;
  justify-content: center;
  padding-top: 8px;
  cursor: pointer;
}

.scroll-cue span {
  width: 2px; height: 8px;
  background: var(--c-gold);
  border-radius: 2px;
  animation: cue 1.8s var(--ease) infinite;
}

@keyframes cue {
  0%   { opacity: 0; transform: translateY(-4px); }
  40%  { opacity: 1; }
  100% { opacity: 0; transform: translateY(14px); }
}

/* ================================================================
   6. GLASSMORPHISM PANELS
   ================================================================ */
.glass-panel {
  background: var(--glass-bg);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border: 1px solid var(--glass-border);
  border-radius: 16px;
  padding: 40px;
  position: relative;
  overflow: hidden;
}

/* 玻璃面板内部微光 */
.glass-panel::before {
  content: "";
  position: absolute;
  top: -50%; left: -50%;
  width: 200%; height: 200%;
  background: radial-gradient(circle at 30% 30%, rgba(201,155,67,0.04) 0%, transparent 50%);
  animation: glassGlow 20s var(--ease-slow) infinite alternate;
  pointer-events: none;
}

@keyframes glassGlow {
  0%   { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

.glass-panel p {
  color: var(--c-text-mute);
  margin-bottom: 16px;
  font-size: 16px;
  line-height: 1.75;
}

.glass-panel p:last-of-type { margin-bottom: 0; }

.glass-panel__closing {
  margin-top: 20px;
  font-style: italic;
  color: var(--c-gold) !important;
  opacity: 0.8;
  font-size: 15px !important;
}

.glass-panel--center {
  max-width: 600px;
  margin: 0 auto;
  text-align: center;
}

/* ================================================================
   7. GEM GRID — 珍藏卡片
   ================================================================ */
.gem-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 24px;
  perspective: 1200px;
}

.gem-card {
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--glass-border);
  border-radius: 12px;
  overflow: hidden;
  cursor: pointer;
  transform-style: preserve-3d;
  transition: box-shadow 0.4s var(--ease), border-color 0.4s var(--ease);
  will-change: transform;
}

.gem-card:hover {
  border-color: var(--c-gold-soft);
  box-shadow: 0 20px 60px rgba(0,0,0,0.5), 0 0 30px var(--c-gold-faint);
}

.gem-card img {
  width: 100%;
  height: 240px;
  object-fit: cover;
  filter: saturate(0.85) contrast(1.05);
  transition: transform 0.6s var(--ease), filter 0.6s var(--ease);
}

.gem-card:hover img {
  transform: scale(1.08);
  filter: saturate(1.1) contrast(1.1);
}

.gem-card__body {
  padding: 20px;
  transform: translateZ(30px);
}

.gem-card__body h3 {
  font-size: 20px;
  font-weight: normal;
  margin-bottom: 8px;
}

.gem-card__body p {
  color: var(--c-text-mute);
  font-size: 13px;
  margin-bottom: 14px;
  line-height: 1.6;
}

.tag {
  display: inline-block;
  font-size: 10px;
  letter-spacing: 2px;
  color: var(--c-gold);
  text-transform: uppercase;
  margin-bottom: 4px;
}

/* ================================================================
   8. STARMAP — 星图
   ================================================================ */
.starmap-panel {
  margin-top: 24px;
  background: var(--glass-bg);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border: 1px solid var(--glass-border);
  border-radius: 16px;
  padding: 32px;
}

.stone-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 24px;
}

.stone-tab {
  background: transparent;
  border: 1px solid var(--c-gold-mute);
  color: var(--c-text-mute);
  padding: 8px 18px;
  font-size: 11px;
  letter-spacing: 2px;
  text-transform: uppercase;
  cursor: pointer;
  font-family: var(--serif);
  border-radius: 20px;
  transition: all 0.35s var(--ease);
}

.stone-tab:hover { background: var(--c-gold-faint); color: var(--c-gold); }
.stone-tab.is-active { background: var(--c-gold); color: var(--c-text-dark); border-color: var(--c-gold); }

.star-list {
  display: grid;
  gap: 16px;
}

.star-row {
  display: flex;
  align-items: center;
  border-bottom: 1px solid rgba(201,155,67,0.08);
  padding-bottom: 14px;
  transition: opacity 0.4s var(--ease), transform 0.4s var(--ease);
}

.star-row:last-child { border-bottom: none; }

.star-row__name {
  font-size: 16px;
  min-width: 130px;
  color: var(--c-text);
  letter-spacing: 1px;
}

.star-row__desc {
  flex: 1;
  font-size: 13px;
  color: var(--c-text-mute);
  letter-spacing: 0.5px;
}

.star-row__coord {
  font-size: 11px;
  color: var(--c-gold);
  opacity: 0.6;
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.5px;
}

.star-row.is-hidden {
  opacity: 0;
  transform: translateX(-16px);
  display: none;
}

/* ================================================================
   9. CONVICTION GRID — 信念
   ================================================================ */
.conviction-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-top: 24px;
}

.conviction-card {
  padding: 28px 20px;
  text-align: center;
}

.conviction-card__icon {
  font-size: 24px;
  color: var(--c-gold);
  margin-bottom: 14px;
  transition: transform 0.5s var(--ease);
}

.conviction-card:hover .conviction-card__icon {
  transform: scale(1.25) rotate(8deg);
}

.conviction-card h3 {
  font-size: 17px;
  font-weight: normal;
  margin-bottom: 8px;
}

.conviction-card p {
  font-size: 13px;
  color: var(--c-text-mute);
  line-height: 1.6;
}

/* ================================================================
   10. ECHO — 回响（订阅 + 页脚）
   ================================================================ */
.echo-form {
  max-width: 480px;
  margin: 24px auto 0;
  display: flex;
  border: 1px solid var(--glass-border);
  border-radius: 8px;
  overflow: hidden;
  background: rgba(6,5,10,0.6);
}

.echo-form input {
  flex: 1;
  background: transparent;
  border: none;
  color: var(--c-text);
  padding: 14px 16px;
  outline: none;
  font-size: 14px;
  font-family: var(--serif);
}

.echo-form input::placeholder { color: #6b6255; }
.echo-form input.invalid { box-shadow: inset 0 0 0 1px #e74c3c; }

.echo-form button {
  border: none;
  background: var(--c-gold);
  color: var(--c-text-dark);
  padding: 0 24px;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  font-size: 12px;
  cursor: pointer;
  font-family: var(--serif);
  font-weight: bold;
  transition: background 0.3s var(--ease);
}

.echo-form button:hover { background: var(--c-gold-hi); }

.site-footer {
  margin-top: 48px;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 12px;
  color: var(--c-text-mute);
  letter-spacing: 0.5px;
  padding-top: 20px;
  border-top: 1px solid rgba(201,155,67,0.08);
}

/* ================================================================
   11. SCENE REVEAL — 分镜内上浮动画
   ================================================================ */
[data-reveal] {
  opacity: 0;
  transform: translateY(36px);
  transition: opacity 0.9s var(--ease), transform 0.9s var(--ease);
  will-change: opacity, transform;
}

[data-reveal].in-view {
  opacity: 1;
  transform: translateY(0);
}

/* ================================================================
   12. LIGHTBOX — 灯箱
   ================================================================ */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 9000;
  background: rgba(5,5,8,0.94);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.4s var(--ease);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.lightbox.open {
  opacity: 1;
  pointer-events: auto;
}

.lightbox__img {
  max-width: 86vw;
  max-height: 82vh;
  border: 1px solid var(--glass-border);
  border-radius: 8px;
  box-shadow: 0 30px 80px rgba(0,0,0,0.7);
  transform: scale(0.92);
  transition: transform 0.4s var(--ease);
}

.lightbox.open .lightbox__img { transform: scale(1); }

.lightbox__close,
.lightbox__nav {
  position: absolute;
  background: rgba(6,5,10,0.7);
  border: 1px solid var(--glass-border);
  color: var(--c-gold);
  width: 48px; height: 48px;
  border-radius: 50%;
  font-size: 26px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.3s var(--ease), color 0.3s var(--ease);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.lightbox__close:hover,
.lightbox__nav:hover { background: var(--c-gold); color: var(--c-text-dark); }

.lightbox__close { top: 24px; right: 24px; }
.lightbox__prev { left: 24px; top: 50%; transform: translateY(-50%); }
.lightbox__next { right: 24px; top: 50%; transform: translateY(-50%); }

/* ================================================================
   13. TOAST
   ================================================================ */
.toast {
  position: fixed;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  background: rgba(10,10,14,0.9);
  color: var(--c-text);
  border: 1px solid var(--glass-border);
  border-radius: 8px;
  padding: 14px 24px;
  font-size: 14px;
  letter-spacing: 0.5px;
  z-index: 9500;
  opacity: 0;
  transition: opacity 0.4s var(--ease), transform 0.4s var(--ease);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  max-width: 90vw;
}

.toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

.toast.error  { border-color: rgba(231,76,60,0.4); color: #f3c9c2; }
.toast.success { border-color: var(--c-gold-soft); color: var(--c-gold-hi); }

/* ================================================================
   14. CUSTOM CURSOR
   ================================================================ */
.cursor {
  position: fixed;
  top: 0; left: 0;
  z-index: 10000;
  pointer-events: none;
  mix-blend-mode: screen;
}

.cursor__dot {
  position: absolute;
  width: 6px; height: 6px;
  margin: -3px 0 0 -3px;
  background: var(--c-gold);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--c-gold-soft);
  transition: width 0.25s var(--ease), height 0.25s var(--ease), margin 0.25s var(--ease);
}

.cursor__ring {
  position: absolute;
  width: 34px; height: 34px;
  margin: -17px 0 0 -17px;
  border: 1px solid rgba(201,155,67,0.5);
  border-radius: 50%;
  transition: width 0.35s var(--ease), height 0.35s var(--ease), margin 0.35s var(--ease), opacity 0.35s var(--ease);
}

.cursor.hovering .cursor__dot { width: 0; height: 0; margin: 0; }
.cursor.hovering .cursor__ring {
  width: 52px; height: 52px;
  margin: -26px 0 0 -26px;
  opacity: 1;
  background: rgba(201,155,67,0.08);
  border-color: var(--c-gold);
}

/* ================================================================
   15. RESPONSIVE — 响应式
   ================================================================ */
@media (max-width: 980px) {
  .scene { padding: 40px 24px 40px 24px; }

  .sidenav {
    top: auto; bottom: 0; left: 0;
    width: 100%; height: auto;
    flex-direction: row;
    justify-content: center;
    padding: 12px 24px;
    gap: 0;
    border-right: none;
    border-top: 1px solid var(--glass-border);
    background: rgba(5,5,8,0.85);
  }

  .sidenav__logo { display: none; }
  .sidenav__track {
    flex-direction: row;
    gap: 16px;
  }

  .sidenav__dot::before { display: none; }

  .gem-grid,
  .conviction-grid {
    grid-template-columns: 1fr 1fr;
  }

  .gem-card img { height: 180px; }
}

@media (max-width: 640px) {
  .gem-grid,
  .conviction-grid {
    grid-template-columns: 1fr;
  }

  .glass-panel { padding: 24px; }

  .echo-form { flex-direction: column; }
  .echo-form button { padding: 14px; }

  .hero-actions { flex-direction: column; }
  .hero-actions .btn { text-align: center; }
}

/* ================================================================
   16. REDUCED MOTION — 降级
   ================================================================ */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    transition-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
  }
  [data-reveal] { opacity: 1; transform: none; }
  .hero-title .word { opacity: 1; transform: none; }
  .nebula-bg, .liquid-wave { animation: none; }
  html, body { overflow: auto; height: auto; }
  .deck { overflow-y: visible; scroll-snap-type: none; }
}