/* ============================================================
   北浅_awa 个人介绍网站 — 样式表
   设计规范：深色基调 + 蓝紫主题色 + 全页滚动 + 内联SVG图标
   ============================================================ */

/* ---------- 色彩变量（浅色模式为默认） ---------- */
:root{
  --bg:            #f5f5f7;                       /* 页面背景 */
  --bg-soft:       #ffffff;                       /* 次级页面背景 */
  --card-bg:       rgba(0,0,0,0.03);              /* 卡片/面板背景 */
  --card-bg-hover: rgba(0,0,0,0.06);
  --text:          #0a0a0f;                       /* 主要文字 */
  --text-muted:    rgba(10,10,15,0.55);           /* 次要文字 */
  --rule:          rgba(0,0,0,0.12);              /* 边框/分割线 */
  --accent:        #0ea5e9;                       /* 主题色 蓝 */
  --accent2:       #7dd3fc;                       /* 辅助色 紫 */
  --mask:          rgba(255,255,255,0.25);        /* 封面白色蒙版 */
  --nav-bg:        rgba(255,255,255,0.7);         /* 导航栏毛玻璃背景 */
  --filing-bg:     rgba(245,245,247,0.92);        /* 备案栏背景 */
  --toast-bg:      rgba(255,255,255,0.95);
  --shadow:        0 8px 32px rgba(0,0,0,0.12);

  --font-title: "Bricolage Grotesque", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-body:  "Instrument Sans", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-mono:  "JetBrains Mono", "Consolas", monospace;

  --nav-h: 56px;
  --tab-h: 0px;
  --ease: cubic-bezier(0.4, 0, 0.2, 1);
}

/* ---------- 浅色模式变量 ---------- */
html.light-mode{
  --bg:            #0a0a0f;
  --bg-soft:       #0d0d14;
  --card-bg:       rgba(255,255,255,0.05);
  --card-bg-hover: rgba(255,255,255,0.08);
  --text:          #f5f5f5;
  --text-muted:    rgba(245,245,245,0.5);
  --rule:          rgba(255,255,255,0.1);
  --accent:        #38bdf8;
  --accent2:       #7dd3fc;
  --mask:          rgba(255,255,255,0.12);
  --nav-bg:        rgba(10,10,15,0.6);
  --filing-bg:     rgba(20,20,28,0.85);
  --toast-bg:      rgba(20,20,28,0.95);
  --shadow:        0 8px 32px rgba(0,0,0,0.4);
}

/* ---------- 基础重置 ---------- */
*{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  font-family:var(--font-body);
  background:var(--bg);
  color:var(--text);
  overflow-x:hidden;              /* 防横向滚动条 */
  overflow-y:hidden;              /* 由容器接管滚动 */
  min-height:100dvh;
  min-height:-webkit-fill-available;
  -webkit-font-smoothing:antialiased;
  transition:background 0.60s cubic-bezier(0.22, 0.61, 0.36, 1), color 0.60s cubic-bezier(0.22, 0.61, 0.36, 1);
}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit;}
svg{display:block;width:1em;height:1em;}

/* 禁用拖拽与文本选择，避免 Web 感 */
img,svg{-webkit-user-drag:none;user-select:none;}
body{
  -webkit-user-select:none;
  -moz-user-select:none;
  -ms-user-select:none;
  user-select:none;
}

/* ---------- 全页滚动容器 ---------- */
.snap-container{
  height:100dvh;
  height:100vh;
  overflow-y:scroll;
  scroll-behavior:smooth;
  -webkit-overflow-scrolling:touch;

}
.snap-container::-webkit-scrollbar{width:0;}    /* 隐藏滚动条 */

.snap-page{
  position:relative;
  height:100dvh;
  height:100vh;
  width:100%;
  display:flex;
  flex-direction:column;
  justify-content:center;
  align-items:center;
  overflow:hidden;
  transition:opacity 0.5s var(--ease);
  transform:translate3d(0,0,0);
  -webkit-transform:translate3d(0,0,0);
  will-change:transform,opacity;
  backface-visibility:hidden;
  -webkit-backface-visibility:hidden;
  perspective:1000px;
  -webkit-perspective:1000px;
}
.page-inner{
  width:min(1100px,92%);
  max-height:calc(100dvh - var(--nav-h) - 40px);
  max-height:calc(100vh - var(--nav-h) - 40px);
  overflow-y:auto;
  padding-top:var(--nav-h);
  transform:translate3d(0,0,0);
  -webkit-transform:translate3d(0,0,0);
  will-change:transform,opacity;
  backface-visibility:hidden;
  -webkit-backface-visibility:hidden;
}
.page-inner::-webkit-scrollbar{width:0;}

/* 页面标题 */
.page-head{
  display:flex;align-items:center;gap:14px;
  margin-bottom:36px;
  opacity:0;transform:translateY(32px);
  transition:opacity 0.7s var(--ease), transform 0.7s var(--ease);
}
.snap-page.in-view .page-head{opacity:1;transform:translateY(0);}
.page-head .page-icon{
  width:44px;height:44px;
  display:flex;align-items:center;justify-content:center;
  border:1px solid var(--rule);border-radius:12px;
  color:var(--accent2);
}
.page-head .page-icon svg{width:24px;height:24px;}
.page-head h2{
  font-family:var(--font-title);
  font-size:clamp(1.6rem,3vw,2.4rem);
  font-weight:600;letter-spacing:0.5px;
}
/* ---------- 预加载遮罩 ---------- */
.preloader{
  position:fixed;inset:0;z-index:9999;
  background:var(--bg);
  display:flex;align-items:center;justify-content:center;
  transition:opacity 0.4s var(--ease);
}
.preloader.hide{opacity:0;pointer-events:none;}
.loader-spinner{
  width:42px;height:42px;
  border:2px solid var(--rule);
  border-top-color:var(--accent);
  border-radius:50%;
  animation:spin 0.8s linear infinite;
}
@keyframes spin{to{transform:rotate(360deg);}}

/* ---------- 顶部导航栏（全局组件） ---------- */
.navbar{
  position:fixed;top:0;left:0;right:0;z-index:100;
  height:var(--nav-h);
  display:flex;align-items:center;gap:18px;
  padding:0 24px;
  background:var(--nav-bg);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid var(--rule);
  opacity:0;pointer-events:none;
  transition:opacity 0.6s var(--ease);
}
.navbar.visible{opacity:1;pointer-events:auto;}
.nav-brand{
  font-family:var(--font-title);
  font-weight:700;font-size:1.1rem;
  padding-right:18px;
  border-right:1px solid var(--rule);
  white-space:nowrap;
}
.nav-items{
  display:flex;align-items:center;gap:4px;
  position:relative;
  flex:1;
}
.nav-btn{
  position:relative;
  padding:8px 14px;
  font-size:0.92rem;
  color:var(--text-muted);
  border-radius:8px;
  transition:color 0.3s var(--ease), background 0.3s var(--ease);
  white-space:nowrap;
}
.nav-btn:hover{color:var(--text);background:var(--card-bg);}
.nav-btn.active{color:var(--accent);}
/* 高亮指示横线（拉伸→平移→收缩） */
.nav-indicator{
  position:absolute;bottom:2px;left:0;
  height:2px;width:0;
  background:var(--accent);
  border-radius:2px;
  transition:left 0.3s var(--ease), width 0.3s var(--ease);
  pointer-events:none;
}
/* 导航栏右侧控制区 */
.nav-controls{
  display:flex;align-items:center;gap:10px;flex-shrink:0;
  position:relative;
}
/* 音乐播放按钮 */
.music-toggle{
  width:38px;height:38px;border-radius:50%;
  border:1px solid var(--rule);
  display:flex;align-items:center;justify-content:center;
  background:var(--card-bg);
  transition:background 0.55s cubic-bezier(0.22, 0.61, 0.36, 1), border-color 0.55s cubic-bezier(0.22, 0.61, 0.36, 1);
  flex-shrink:0;
  position:relative;
}
.music-toggle:hover{border-color:var(--accent);}
.music-toggle svg{
  width:20px;height:20px;
  position:absolute;
  top:50%;left:50%;
  transform:translate(-50%,-50%);
  transition:opacity 0.3s var(--ease);
}
.music-toggle .icon-pause{opacity:0;transform:translate(-50%,-50%) scale(0.6);}
.music-toggle.playing .icon-play{opacity:0;transform:translate(-50%,-50%) scale(0.6);}
.music-toggle.playing .icon-pause{opacity:1;transform:translate(-50%,-50%) scale(1);}
.music-toggle .icon-play{opacity:1;transform:translate(-50%,-50%) scale(1);}
/* 主题切换按钮 */
.theme-toggle{
  width:38px;height:38px;border-radius:50%;
  border:1px solid var(--rule);
  display:flex;align-items:center;justify-content:center;
  background:var(--card-bg);
  transition:background 0.55s cubic-bezier(0.22, 0.61, 0.36, 1), border-color 0.55s cubic-bezier(0.22, 0.61, 0.36, 1);
  flex-shrink:0;
}
.theme-toggle:hover{border-color:var(--accent);}
.theme-toggle .icon-wrap{
  position:relative;
  width:24px;height:24px;
  overflow:hidden;
  border-radius:50%;
}
.theme-toggle svg{
  position:absolute;
  left:50%;top:50%;
  width:22px;height:22px;
  margin:-11px 0 0 -11px;
}
/* 浅色模式（默认）：太阳在中心，月亮在下方 */
.theme-toggle .icon-sun{
  transform:translateY(0) rotate(0);
  opacity:1;
}
.theme-toggle .icon-moon{
  transform:translateY(20px) rotate(30deg);
  opacity:0;
}
/* 深色模式：月亮在中心，太阳在下方 */
html.light-mode .theme-toggle .icon-moon{
  transform:translateY(0) rotate(0);
  opacity:1;
}
html.light-mode .theme-toggle .icon-sun{
  transform:translateY(20px) rotate(30deg);
  opacity:0;
}
/* 切换动画：太阳落月亮升（切到深色模式） */
.theme-toggle.switching-to-dark .icon-sun{
  animation:sunSet 0.62s cubic-bezier(0.22, 0.61, 0.36, 1) forwards;
}
.theme-toggle.switching-to-dark .icon-moon{
  animation:moonRise 0.62s cubic-bezier(0.22, 0.61, 0.36, 1) forwards;
}
/* 切换动画：月亮落太阳升（切到浅色模式） */
.theme-toggle.switching-to-light .icon-moon{
  animation:moonSet 0.62s cubic-bezier(0.22, 0.61, 0.36, 1) forwards;
}
.theme-toggle.switching-to-light .icon-sun{
  animation:sunRise 0.62s cubic-bezier(0.22, 0.61, 0.36, 1) forwards;
}
@keyframes sunSet{
  from{transform:translateY(0) rotate(0);opacity:1;}
  to{transform:translateY(20px) rotate(30deg);opacity:0;}
}
@keyframes moonRise{
  from{transform:translateY(20px) rotate(30deg);opacity:0;}
  to{transform:translateY(0) rotate(0);opacity:1;}
}
@keyframes moonSet{
  from{transform:translateY(0) rotate(0);opacity:1;}
  to{transform:translateY(20px) rotate(30deg);opacity:0;}
}
@keyframes sunRise{
  from{transform:translateY(20px) rotate(30deg);opacity:0;}
  to{transform:translateY(0) rotate(0);opacity:1;}
}

/* ---------- 顶部控制按钮通用：nav-indicator 同款「进度条」hover ---------- */
/* 进度条：默认 width=0 藏在底部正中，hover 向两侧弹开到 76% */
.music-toggle::after,
.theme-toggle::after,
.lang-toggle::after{
  content:"";
  position:absolute;
  left:50%;
  bottom:-6px;                 /* 放在圆形按钮正下方 6px，不被圆形裁掉 */
  width:0;
  height:2px;
  background:var(--accent);   /* ← 和 .nav-indicator 完全同款色 */
  border-radius:2px;          /* ← 同款 2px 圆角 */
  pointer-events:none;
  transition:
    left  0.3s cubic-bezier(0.4, 0, 0.2, 1),    /* ← 同款 ease、同款时长 */
    width 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}
.music-toggle:hover::after,
.theme-toggle:hover::after,
.lang-toggle:hover::after{
  left:12%;         /* 100% - 76% = 24%，两边各 12% → 绝对居中弹出 */
  width:76%;        /* 38px × 76% ≈ 29px，不超出圆形左右切线的视觉感 */
}
/* hover 时再加强反馈：背景加深一点 + 轻微放大（与 nav-btn hover 一致的层级抬升） */
.music-toggle:hover,
.theme-toggle:hover,
.lang-toggle:hover{
  border-color:var(--accent);
  background:var(--card-bg-hover);
  transform:scale(1.03);
  transition:
    background   0.28s cubic-bezier(0.4, 0, 0.2, 1),
    border-color 0.28s cubic-bezier(0.4, 0, 0.2, 1),
    transform    0.28s cubic-bezier(0.4, 0, 0.2, 1);
}
/* 给主题按钮补上 position:relative（其他两个都有，theme-toggle 之前漏了）—— 否则 ::after 会挂到 .nav-controls */
.theme-toggle{position:relative;overflow:visible;}

/* ---------- 语言切换按钮 ---------- */
.lang-toggle{
  width:38px;height:38px;border-radius:50%;
  border:1px solid var(--rule);
  display:flex;align-items:center;justify-content:center;
  background:var(--card-bg);
  transition:background 0.55s cubic-bezier(0.22, 0.61, 0.36, 1), border-color 0.55s cubic-bezier(0.22, 0.61, 0.36, 1);
  flex-shrink:0;
  position:relative;
  cursor:pointer;
}
.lang-toggle:hover{border-color:var(--accent);}
.lang-toggle.active{border-color:var(--accent);background:var(--card-bg);}
.lang-toggle .icon-globe{
  width:20px;height:20px;
  position:absolute;
  top:50%;left:50%;
  transform:translate(-50%,-50%);
  transition:opacity 0.3s var(--ease);
}
/* [removed] lang-toggle label block (纯图标模式) */
/* 语言下拉菜单 */
.lang-dropdown{
  position:absolute;
  top:calc(100% + 8px);
  left:0;
  min-width:130px;
  background:var(--bg-soft);
  border:1px solid var(--rule);
  border-radius:12px;
  box-shadow:var(--shadow);
  padding:6px;
  opacity:0;
  visibility:hidden;
  transform:translateY(-8px);
  transition:opacity 0.25s var(--ease), transform 0.25s var(--ease), visibility 0.25s;
  z-index:150;
  min-width:140px;
}
.lang-dropdown.show{
  opacity:1;
  visibility:visible;
  transform:translateY(0);
}
.lang-option{
  display:block;
  width:100%;
  padding:8px 14px;
  font-size:0.88rem;
  text-align:left;
  border-radius:8px;
  color:var(--text-muted);
  transition:color 0.2s var(--ease), background 0.2s var(--ease);
}
.lang-option:hover{
  color:var(--text);
  background:var(--card-bg);
}
.lang-option.active{
  color:var(--accent);
  font-weight:600;
  background:var(--card-bg);
}

/* 主题切换背景圆形扩散覆盖层
   ⚠️ transition 直接挂在基础类上（而不是 .active）—— 无论类状态如何，
   JS 里对 style.clipPath / style.opacity 的任何前后值变更，都会触发过渡。
   彻底避免了「加 active + 再改 clipPath」时浏览器偶尔跳过 transition 的问题。
*/
.theme-overlay{
  position:fixed;inset:0;z-index:200;
  pointer-events:none;
  clip-path:circle(0% at 0% 0%);
  opacity:0;
  background:transparent;
  /* clip-path: 0.72s easeInOutSine 对称缓动 — 肉眼可见半径均匀增长 */
  -webkit-transition:
    -webkit-clip-path 0.72s cubic-bezier(0.445, 0.05, 0.55, 0.95),
    opacity 0.24s ease-out;
  transition:
    clip-path 0.72s cubic-bezier(0.445, 0.05, 0.55, 0.95),
    -webkit-clip-path 0.72s cubic-bezier(0.445, 0.05, 0.55, 0.95),
    opacity 0.24s ease-out;
}
/* .active 仍然保留（兼容性，不报错），但已不作为 transition 前提依赖 */
.theme-overlay.active{ opacity:1; }

/* ---------- 4.1 封面页 ---------- */
.page-cover{justify-content:center;}
.bg-layer{
  position:absolute;inset:0;
  /* [修改] 背景图路径 */
  background:url('../img/background.png') center/cover no-repeat;
  opacity:0;
  transition:opacity 1.2s var(--ease);
  z-index:0;
  transform:translate3d(0,0,0);
  -webkit-transform:translate3d(0,0,0);
  will-change:opacity,transform;
  backface-visibility:hidden;
  -webkit-backface-visibility:hidden;
}
.bg-layer.show{opacity:1;}
.mask-layer{
  position:absolute;inset:0;
  background:rgba(255,255,255,0);
  transition:background-color 1.5s var(--ease);
  z-index:1;
  transform:translate3d(0,0,0);
  -webkit-transform:translate3d(0,0,0);
  will-change:background-color,transform;
  backface-visibility:hidden;
  -webkit-backface-visibility:hidden;
}
html.light-mode .mask-layer{background-color:rgba(255,255,255,0);}
.mask-layer.show{background-color:var(--mask);}
.text-layer{
  position:relative;z-index:2;
  text-align:center;
  opacity:0;
  transition:opacity 0.5s var(--ease);
  transform:translate3d(0,0,0);
  -webkit-transform:translate3d(0,0,0);
  will-change:opacity,transform;
  backface-visibility:hidden;
  -webkit-backface-visibility:hidden;
}
.text-layer.show{opacity:1;}
.typed{
  font-family:var(--font-title);
  font-size:clamp(2.4rem,7vw,5rem);
  font-weight:700;
  letter-spacing:2px;
  color:#ffffff;
  text-shadow:0 2px 24px rgba(0,0,0,0.5);
  display:block;
  min-height:1.2em;
  transform:translate3d(0,0,0);
  -webkit-transform:translate3d(0,0,0);
  will-change:opacity,transform;
  backface-visibility:hidden;
  -webkit-backface-visibility:hidden;
}
.typed-sub{
  font-family:var(--font-mono);
  margin-top:16px;
  font-size:clamp(0.85rem,1.6vw,1.1rem);
  color:rgba(255,255,255,0.75);
  min-height:1.4em;
  display:block;
  text-align:center;
}
.typed-sub.typing{
  border-right:1px solid var(--accent2);
  display:inline-block;
}
.typed-sub.typing{animation:caret-sub 1s steps(1) infinite;}
@keyframes caret-sub{50%{border-color:transparent;}}
.scroll-hint{
  position:absolute;bottom:40px;left:50%;
  transform:translateX(-50%);
  z-index:2;
  display:flex;flex-direction:column;align-items:center;gap:10px;
  color:var(--text-muted);
  font-size:0.82rem;
  opacity:0;
  transition:opacity 0.5s var(--ease);
}
.scroll-hint.show{opacity:1;animation:bounce 2s var(--ease) infinite;}
@keyframes bounce{0%,100%{transform:translateX(-50%) translateY(0);}50%{transform:translateX(-50%) translateY(8px);}}
.mouse{
  width:22px;height:36px;
  border:1.5px solid var(--text-muted);
  border-radius:12px;
  position:relative;
}
.mouse::after{
  content:"";position:absolute;
  top:7px;left:50%;transform:translateX(-50%);
  width:3px;height:7px;border-radius:2px;
  background:var(--text-muted);
  animation:wheel 1.6s var(--ease) infinite;
}
@keyframes wheel{0%{opacity:1;top:7px;}100%{opacity:0;top:18px;}}

/* ---------- 4.2 成长经历时间轴 ---------- */
.timeline{
  position:relative;
  padding-left:28px;
  max-width:760px;margin:0 auto;
}
.timeline::before{
  content:"";position:absolute;
  left:7px;top:6px;bottom:6px;
  width:2px;background:var(--rule);
}
.tl-item{
  position:relative;
  padding:0 0 28px 24px;
  opacity:0;transform:translateX(-30px);
  transition:opacity 0.6s var(--ease), transform 0.6s var(--ease);
}
.tl-item.in{opacity:1;transform:translateX(0);}
.tl-item::before{
  content:"";position:absolute;
  left:-25px;top:6px;
  width:16px;height:16px;
  border-radius:50%;
  background:var(--bg);
  border:2px solid var(--accent);
}
.tl-item .tl-icon{
  position:absolute;left:-30px;top:2px;
  width:26px;height:26px;
  display:flex;align-items:center;justify-content:center;
  background:var(--bg);border-radius:50%;
  color:var(--accent2);
}
.tl-item .tl-icon svg{width:18px;height:18px;}
.tl-year{
  font-family:var(--font-mono);
  font-size:0.85rem;color:var(--accent);
  margin-bottom:4px;
}
.tl-title{font-size:1.15rem;font-weight:600;margin-bottom:4px;}
.tl-desc{color:var(--text-muted);font-size:0.95rem;line-height:1.6;}

.works-grid{
  display:grid;grid-template-columns:repeat(3,1fr);gap:16px;
  margin-bottom:30px;
}
.work-card{
  background:var(--card-bg);
  border:1px solid var(--rule);
  border-radius:12px;
  overflow:hidden;
  display:flex;flex-direction:column;
  opacity:0;transform:translateY(24px);
  transition:opacity 0.6s var(--ease), transform 0.6s var(--ease), border-color 0.3s var(--ease);
}
.snap-page.in-view .work-card{opacity:1;transform:translateY(0);}
.snap-page.in-view .work-card:nth-child(2){transition-delay:0.12s;}
.snap-page.in-view .work-card:nth-child(3){transition-delay:0.24s;}
.work-card:hover{border-color:var(--accent);transform:translateY(-4px);}
.work-thumb{height:120px;background:var(--bg-soft);display:flex;align-items:center;justify-content:center;color:var(--accent2);}
.work-thumb svg{width:42px;height:42px;}
.work-body{padding:12px 14px;}
.work-title{font-weight:600;font-size:0.98rem;margin-bottom:4px;}
.work-views{font-family:var(--font-mono);font-size:0.8rem;color:var(--text-muted);}

/* 图表容器 */
.chart-wrap{
  background:var(--card-bg);
  border:1px solid var(--rule);
  border-radius:14px;
  padding:16px;
  opacity:0;transform:translateY(24px);
  transition:opacity 0.7s var(--ease), transform 0.7s var(--ease);
}
.snap-page.in-view .chart-wrap{opacity:1;transform:translateY(0);}
.chart-title{
  font-family:var(--font-title);
  font-size:0.95rem;font-weight:600;
  margin-bottom:8px;color:var(--text-muted);
}
.chart-box{width:100%;height:240px;}

/* ---------- 4.4 多平台粉丝数据 ---------- */
.fans-cards{
  display:grid;grid-template-columns:repeat(3,1fr);gap:18px;
  margin-bottom:24px;
}
.fan-card{
  background:var(--card-bg);
  border:1px solid var(--rule);
  border-radius:14px;
  padding:24px 18px;
  text-align:center;
  transition:border-color 0.3s var(--ease), transform 0.3s var(--ease);
  opacity:0;transform:translateY(24px);
}
.snap-page.in-view .fan-card{opacity:1;transform:translateY(0);}
.snap-page.in-view .fan-card:nth-child(2){transition-delay:0.12s;}
.snap-page.in-view .fan-card:nth-child(3){transition-delay:0.24s;}
.fan-card:hover{border-color:var(--accent);transform:translateY(-4px);}
.fan-icon{
  width:48px;height:48px;margin:0 auto 12px;
  display:flex;align-items:center;justify-content:center;
  border:1px solid var(--rule);border-radius:50%;
  color:var(--accent2);
}
.fan-icon svg{width:24px;height:24px;}
.fan-name{font-weight:600;margin-bottom:6px;}
.fan-count{font-family:var(--font-mono);font-size:1.5rem;color:var(--accent);}
/* ---------- 4.5 项目展示 ---------- */
.projects-grid{
  display:grid;grid-template-columns:repeat(2,1fr);gap:18px;
}
.proj-card{
  display:flex;align-items:center;gap:18px;
  background:var(--card-bg);
  border:1px solid var(--rule);
  border-radius:14px;
  padding:22px 20px;
  transition:transform 0.3s var(--ease), border-color 0.3s var(--ease);
  opacity:0;transform:translateY(24px);
}
.snap-page.in-view .proj-card{opacity:1;transform:translateY(0);}
.snap-page.in-view .proj-card:nth-child(2){transition-delay:0.12s;}
.snap-page.in-view .proj-card:nth-child(3){transition-delay:0.24s;}
.snap-page.in-view .proj-card:nth-child(4){transition-delay:0.36s;}
.proj-card:hover{transform:translateY(-4px);border-color:var(--accent);}
.proj-icon{
  flex-shrink:0;
  width:50px;height:50px;
  display:flex;align-items:center;justify-content:center;
  border:1px solid var(--rule);border-radius:12px;
  color:var(--accent2);
}
.proj-icon svg{width:26px;height:26px;}
.proj-info{flex:1;min-width:0;}
.proj-name{font-weight:600;font-size:1.05rem;margin-bottom:4px;}
.proj-tag{font-family:var(--font-mono);font-size:0.8rem;color:var(--text-muted);}
.proj-desc{font-size:0.88rem;color:var(--text-muted);margin-top:6px;line-height:1.5;}

/* 禁用状态的项目卡片 */
.proj-card.disabled{
  cursor:not-allowed;
  opacity:0.65;
  pointer-events:none;
  position:relative;
}
/* Disabled tag is now rendered as a <span class="disabled-tag"> in JS */
.proj-card.disabled:hover{
  transform:none;
  border-color:var(--rule);
}
.proj-card.disabled .proj-desc{
  color:var(--text-muted);
}


/* 禁用项目标签（敬请期待） */
.proj-card.disabled .disabled-tag{
  position:absolute;
  top:12px;right:12px;
  padding:3px 10px;
  font-size:0.75rem;
  font-weight:600;
  border-radius:10px;
  background:var(--accent);
  color:#fff;
  opacity:0.9;
}
/* ---------- 4.6 联系方式 ---------- */
.contact-btns{
  display:flex;flex-direction:column;align-items:center;gap:14px;
  max-width:460px;margin:0 auto;
}
.contact-btn{
  display:flex;align-items:center;gap:12px;
  padding:14px 28px;
  border:1px solid var(--rule);
  border-radius:999px;
  background:var(--card-bg);
  font-size:1rem;
  transition:border-color 0.3s var(--ease), transform 0.3s var(--ease), background 0.3s var(--ease);
  opacity:0;transform:translateY(20px);
}
.snap-page.in-view .contact-btn{opacity:1;transform:translateY(0);}
.snap-page.in-view .contact-btn:nth-child(2){transition-delay:0.12s;}
.snap-page.in-view .contact-btn:nth-child(3){transition-delay:0.24s;}
.snap-page.in-view .contact-btn:nth-child(4){transition-delay:0.36s;}
.contact-btn:hover{border-color:var(--accent);background:var(--card-bg-hover);transform:translateY(-2px);}
.contact-btn svg{width:20px;height:20px;color:var(--accent);}
.contact-note{margin-top:24px;text-align:center;color:var(--text-muted);font-size:0.85rem;}

/* ---------- 4.7 友情链接 ---------- */
.links-grid{
  display:grid;grid-template-columns:repeat(3,1fr);gap:14px;
  max-width:900px;margin:0 auto;
}
.link-item{
  display:flex;align-items:center;gap:12px;
  padding:16px 18px;
  border:1px solid var(--rule);
  border-radius:12px;
  background:var(--card-bg);
  transition:border-color 0.3s var(--ease), color 0.3s var(--ease), transform 0.3s var(--ease);
  opacity:0;transform:translateY(18px);
}
.snap-page.in-view .link-item{opacity:1;transform:translateY(0);}
.link-item:hover{border-color:var(--accent);color:var(--accent);transform:translateY(-2px);}
.link-item svg{width:20px;height:20px;color:var(--accent2);flex-shrink:0;}

/* ---------- 合作伙伴页 ---------- */
.partner-wrap{
  display:flex;flex-direction:column;gap:36px;
}
.partner-card{
  display:flex;gap:32px;align-items:center;
  padding:32px;
  background:var(--card-bg);
  border:1px solid var(--rule);
  border-radius:20px;
}
.partner-logo{
  width:clamp(80px,10vw,100px);
  height:clamp(80px,10vw,100px);
  border-radius:20px;
  overflow:hidden;
  background:var(--card-bg);
  border:1px solid var(--rule);
  display:flex;align-items:center;justify-content:center;
  flex-shrink:0;
}
.partner-logo img{
  width:100%;height:100%;
  object-fit:cover;
}
.partner-info{flex:1;}
.partner-name{
  font-family:var(--font-title);
  font-size:clamp(1.2rem,2vw,1.6rem);
  font-weight:600;
  margin-bottom:4px;
}
.partner-en{
  font-size:0.85rem;
  color:var(--text-muted);
  font-family:var(--font-mono);
  margin-bottom:12px;
}
.partner-desc{
  font-size:0.95rem;
  color:var(--text-muted);
  line-height:1.7;
  margin-bottom:16px;
}
.partner-tags{display:flex;gap:8px;flex-wrap:wrap;}
.partner-features{
  display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:16px;
}
.pf-item{
  display:flex;gap:14px;align-items:flex-start;
  padding:20px;
  background:var(--card-bg);
  border:1px solid var(--rule);
  border-radius:14px;
  transition:border-color 0.3s var(--ease);
}
.pf-item:hover{border-color:var(--accent);}
.pf-icon{width:44px;height:44px;flex-shrink:0;display:flex;align-items:center;justify-content:center;border:1px solid var(--rule);border-radius:12px;color:var(--accent2);background:var(--bg-soft);}
.pf-body h4{font-size:0.95rem;font-weight:600;margin-bottom:4px;}
.pf-body p{font-size:0.82rem;color:var(--text-muted);line-height:1.5;}
.pf-icon svg{width:22px;height:22px;}
/* ---------- 备案信息栏（底部滑出） ---------- */
.filing-bar{
  position:fixed;left:50%;bottom:0;
  transform:translate(-50%,130%);
  z-index:90;
  width:min(70%,680px);
  padding:12px 24px;
  background:var(--filing-bg);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  border:1px solid var(--rule);
  border-bottom:none;
  border-radius:14px 14px 0 0;
  display:flex;justify-content:center;align-items:center;gap:10px;flex-wrap:wrap;
  font-size:0.78rem;
  color:var(--text-muted);
  transition:transform 0.6s var(--ease);
  text-align:center;
}
.filing-bar.show{transform:translate(-50%,0);}
.filing-bar .sep{color:var(--rule);}

/* ---------- 复制提示 toast ---------- */
.toast{
  position:fixed;left:50%;bottom:60px;
  transform:translate(-50%,20px);
  z-index:300;
  padding:10px 20px;
  background:var(--toast-bg);
  border:1px solid var(--accent);
  border-radius:999px;
  font-size:0.88rem;
  color:var(--text);
  opacity:0;pointer-events:none;
  transition:opacity 0.3s var(--ease), transform 0.3s var(--ease);
}
.toast.show{opacity:1;transform:translate(-50%,0);}

/* ---------- 入场动画通用类 ---------- */
.fade-up{opacity:0;transform:translateY(24px);transition:opacity 0.7s var(--ease), transform 0.7s var(--ease);}
.in-view .fade-up{opacity:1;transform:translateY(0);}
.fade-up.delay-1{transition-delay:0.12s;}
.fade-up.delay-2{transition-delay:0.24s;}
.fade-up.delay-3{transition-delay:0.36s;}

/* ---------- 右侧页面节点进度条 ---------- */
.page-dots{
  position:fixed;right:24px;top:50%;
  transform:translateY(-50%);
  z-index:80;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;
  padding:12px 8px;
  border-radius:999px;
  background:var(--card-bg);
  border:1px solid var(--rule);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
}
.page-dot{
  width:10px;height:10px;
  border-radius:50%;
  background:var(--rule);
  border:none;
  cursor:pointer;
  padding:0;
  transition:background 0.3s var(--ease);
  position:relative;
}
.page-dot:hover{background:var(--accent2);}
.page-dot.active{
  width:14px;height:14px;
  background:var(--accent);
  box-shadow:0 0 12px 2px var(--accent);
}
.page-dot.active::after{
  content:"";
  position:absolute;inset:-4px;
  border:1px solid var(--accent);
  border-radius:50%;
  animation:dot-pulse 2s var(--ease) infinite;
}
/* Dot tooltip: chat bubble style on the left */
.page-dot .dot-tooltip{
  position:absolute;
  right:calc(100% + 14px);
  top:50%;
  transform:translateY(-50%);
  padding:6px 12px;
  background:var(--card-bg);
  color:var(--text);
  font-size:0.85rem;
  font-weight:500;
  white-space:nowrap;
  border-radius:10px;
  border:1px solid var(--rule);
  box-shadow:var(--shadow);
  opacity:0;
  visibility:hidden;
  pointer-events:none;
  transition:opacity 0.2s var(--ease), visibility 0.2s var(--ease);
  z-index:10;
}
/* Chat bubble arrow on the right (pointing toward the dot) */
.page-dot .dot-tooltip::after{
  content:"";
  position:absolute;
  left:100%;
  top:50%;
  transform:translateY(-50%);
  border:6px solid transparent;
  border-left-color:var(--card-bg);
}
.page-dot .dot-tooltip::before{
  content:"";
  position:absolute;
  left:100%;
  top:50%;
  transform:translateY(-50%);
  border:7px solid transparent;
  border-left-color:var(--rule);
  margin-left:1px;
}
.page-dot:hover .dot-tooltip{
  opacity:1;
  visibility:visible;
}
.page-dot:focus-visible .dot-tooltip{
  opacity:1;
  visibility:visible;
}
@keyframes dot-pulse{
  0%,100%{transform:scale(1);opacity:0.6;}
  50%{transform:scale(1.3);opacity:0;}
}

/* ---------- 页面过渡动画（方向相关） ---------- */
/* 内容页初始隐藏（封面页由原有动画链控制） */
.snap-page:not(.page-cover) .page-inner,
.snap-page:not(.page-cover) .text-layer{
  opacity:0;
}

/* 页面进入后静态兜底：防止方向动画类切换（remove→add）时丢失 animation-forwards 终态，
   导致瞬间回到 opacity:0 / 位移 / blur，表现为「滑到底→回首页→再下滑」的闪烁。
   优先级高于基础态，低于正在运行的 @keyframes 动画（动画会自然覆盖）。*/
.snap-page.in-view:not(.page-cover) .page-inner,
.snap-page.in-view:not(.page-cover) .text-layer{
  opacity: 1 !important;
  transform: translateY(0) !important;
  -webkit-transform: translateY(0) !important;
  filter: blur(0) !important;
}
/* ---------- 终极兜底：动画结束后打标，无论类怎么切，保证终态不透明（与内联style双保险） ---------- */
.snap-page.animation-finished:not(.page-cover) .page-inner,
.snap-page.animation-finished:not(.page-cover) .text-layer{
  opacity: 1 !important;
  transform: none !important;
  -webkit-transform: none !important;
  filter: none !important;
  animation: none !important;
  -webkit-animation: none !important;
}

/* 下滑进入（从下方滑入） */
.snap-page.page-enter-from-bottom .page-inner,
.snap-page.page-enter-from-bottom .text-layer{
  animation:pageFadeUp 0.9s cubic-bezier(0.23,1,0.32,1) forwards;
}

/* 上滑进入（从上方滑入） */
.snap-page.page-enter-from-top .page-inner,
.snap-page.page-enter-from-top .text-layer{
  animation:pageFadeDown 0.9s cubic-bezier(0.23,1,0.32,1) forwards;
}

/* 封面页由原 startCoverAnimation 控制，不使用方向动画 */

@keyframes pageFadeUp{
  0%{opacity:0;transform:translateY(60px);filter:blur(4px);}
  100%{opacity:1;transform:translateY(0);filter:blur(0);}
}
@keyframes pageFadeDown{
  0%{opacity:0;transform:translateY(-60px);filter:blur(4px);}
  100%{opacity:1;transform:translateY(0);filter:blur(0);}
}
@keyframes coverFadeIn{
  0%{opacity:0;transform:scale(0.95);filter:blur(6px);}
  100%{opacity:1;transform:scale(1);filter:blur(0);}
}

/* ---------- 个人介绍页 ---------- */
.about-wrap{
  display:flex;
  align-items:center;
  gap:48px;
  flex-wrap:wrap;
  justify-content:center;
}
.about-avatar{
  position:relative;
  flex-shrink:0;
}
.avatar-ring{
  width:clamp(140px,22vw,200px);
  height:clamp(140px,22vw,200px);
  border-radius:20px;
  background:linear-gradient(135deg,var(--accent),var(--accent2));
  padding:4px;
  position:relative;
  flex-shrink:0;
}
.avatar-inner{
  width:100%;
  height:100%;
  border-radius:16px;
  object-fit:cover;
  display:block;
}

.avatar-glow{
  position:absolute;inset:-16px;
  border-radius:24px;
  background:radial-gradient(circle,var(--accent) 0%,transparent 70%);
  opacity:0.35;
  z-index:-1;
  animation:glowPulse 3s var(--ease) infinite;
}
@keyframes glowPulse{
  0%,100%{transform:scale(1);opacity:0.35;}
  50%{transform:scale(1.1);opacity:0.5;}
}
.about-info{
  max-width:480px;
}
.about-name{
  font-family:var(--font-title);
  font-size:clamp(1.6rem,3.2vw,2.4rem);
  font-weight:700;
  margin-bottom:6px;
  background:linear-gradient(135deg,var(--accent),var(--accent2));
  -webkit-background-clip:text;
  background-clip:text;
  -webkit-text-fill-color:transparent;
}
.about-title{
  font-family:var(--font-mono);
  font-size:clamp(0.85rem,1.4vw,1rem);
  color:var(--accent);
  margin-bottom:14px;
  letter-spacing:1px;
}
.about-desc{
  font-size:clamp(0.9rem,1.5vw,1rem);
  line-height:1.7;
  color:var(--text-muted);
  margin-bottom:20px;
}
.about-tags{
  display:flex;flex-wrap:wrap;gap:10px;
}
.tag{
  padding:6px 14px;
  border-radius:999px;
  font-size:0.85rem;
  background:var(--card-bg);
  border:1px solid var(--rule);
  color:var(--text);
  transition:border-color 0.3s var(--ease), color 0.3s var(--ease);
}
.tag:hover{
  border-color:var(--accent);
  color:var(--accent);
}

/* 响应式 for about */
@media (max-width:760px){
  .about-wrap{flex-direction:column;text-align:center;gap:28px;}
  .about-tags{justify-content:center;}
}


/* ---------- [防闪] 关键元素：强制独立 GPU 合成层 ---------- */
.page-inner,
.page-head,
.navbar,
.dot-rail,
.profile-card,
.work-card,
.chart-wrap,
.fan-card,
.proj-card,
.contact-btn,
.link-item,
.partner-card,
.pf-item,
.typed-sub,
.scroll-hint {
  transform:translate3d(0,0,0);
  -webkit-transform:translate3d(0,0,0);
  will-change:transform,opacity;
  backface-visibility:hidden;
  -webkit-backface-visibility:hidden;
}
/* 滚动时全局禁用不必要的合成层抖动：悬停/点击时再允许动画 */
.snap-container { -webkit-transform:translate3d(0,0,0); transform:translate3d(0,0,0); will-change:scroll-position; }


/* ============================================================
   移动端完整适配 (≤760px)
   ============================================================ */
@media (max-width:760px){
  :root{
    --nav-h: 52px;
    --tab-h: 64px;
  }
  .snap-container{
    height:100dvh;
    height:100vh;
    height: -webkit-fill-available;
  }
  .snap-page{
    height:100dvh;
    height:100vh;
    height: -webkit-fill-available;
    min-height: -webkit-fill-available;
  }
  .page-inner{
    width:94%;
    max-height:calc(100dvh - var(--nav-h) - var(--tab-h) - 24px);
    max-height:calc(100vh  - var(--nav-h) - var(--tab-h) - 24px);
    padding-top:calc(var(--nav-h) + 8px);
    padding-bottom:calc(var(--tab-h) + env(safe-area-inset-bottom, 0px) + 16px);
    margin:0 auto;
  }
  .navbar{ padding:0 12px; gap:8px; }
  .nav-brand{ font-size:0.95rem; padding-right:10px; }
  .nav-controls{ gap:6px !important; }
  .music-toggle,
  .lang-toggle,
  .theme-toggle{ width:36px; height:36px; }
  .music-toggle svg{ width:18px; height:18px; }
  .theme-toggle .icon-wrap{ width:22px; height:22px; }
  .theme-toggle svg{ width:20px; height:20px; margin:-10px 0 0 -10px; }
  .lang-toggle .lang-label{ display:none; }
  .lang-toggle .icon-globe{ width:18px; height:18px; }
  .lang-dropdown{ top:auto; bottom:calc(100% + 10px); }
  /* ---------- 纯CSS回退：≤760px时#navItems无论有没有.tab-bar都直接显示底部Tab Bar（JS不执行也能显示） ---------- */
  #navItems,
  #navItems.tab-bar,
  .nav-items,
  .nav-items.tab-bar{
    position:fixed !important;
    left:0 !important; right:0 !important; bottom:0 !important; top:auto !important;
    z-index:99 !important;
    display:flex !important;
    align-items:center !important;
    justify-content:space-around !important;
    padding:6px 8px calc(6px + env(safe-area-inset-bottom, 0px)) 8px !important;
    height:calc(var(--tab-h) + env(safe-area-inset-bottom, 0px)) !important;
    min-height:56px;
    background:var(--nav-bg) !important;
    backdrop-filter:blur(14px) !important;
    -webkit-backdrop-filter:blur(14px) !important;
    border-top:1px solid var(--rule) !important;
    border-radius:0 !important;
    gap:2px !important;
    flex:0 0 auto !important;
  }
  #navItems .nav-btn,
  .nav-items .nav-btn{
    flex:1 1 0 !important;
    display:flex !important;
    flex-direction:column !important;
    align-items:center !important;
    justify-content:center !important;
    gap:3px !important;
    padding:4px 2px !important;
    height:100% !important;
    min-height:48px !important;
    font-size:0.68rem !important;
    border-radius:10px !important;
    color:var(--text-muted) !important;
    background:transparent !important;
    white-space:nowrap !important;
    position:relative;
  }
  #navItems .nav-btn.active,
  .nav-items .nav-btn.active{
    color:var(--accent) !important;
    background:var(--card-bg) !important;
  }
  #navItems .nav-btn .tab-icon,
  .nav-items .nav-btn .tab-icon{
    display:flex !important;
    width:22px !important; height:22px !important;
    align-items:center !important; justify-content:center !important;
  }
  #navItems .nav-btn .tab-icon svg,
  .nav-items .nav-btn .tab-icon svg{
    width:22px !important; height:22px !important;
    stroke-width:1.8;
  }
  #navItems .nav-btn .tab-label,
  .nav-items .nav-btn .tab-label{
    display:inline !important;
    font-size:0.68rem !important;
    line-height:1 !important;
    font-weight:500 !important;
  }
  #navItems .nav-indicator,
  .nav-items .nav-indicator{ display:none !important; }
  .page-head{ margin-bottom:20px; gap:10px; }
  .page-head .page-icon{ width:36px; height:36px; border-radius:10px; }
  .page-head .page-icon svg{ width:20px; height:20px; }
  .page-head h2{ font-size:1.3rem; letter-spacing:0.3px; }
  .typed{
    font-size:clamp(2.0rem, 11vw, 3.6rem);
    letter-spacing:1px;
    padding:0 12px;
    text-align:center;
  }
  .typed-sub{
    font-size:clamp(0.75rem, 3.5vw, 0.95rem);
    margin-top:12px;
    padding:0 20px;
  }
  .scroll-hint{
    bottom:calc(24px + var(--tab-h) + env(safe-area-inset-bottom, 0px));
    font-size:0.75rem; gap:6px;
  }
  .mouse{ width:20px; height:30px; }
  .about-wrap{ flex-direction:column; text-align:center; gap:20px; padding:4px; }
  .about-avatar{ width:108px; height:108px; border-radius:24px; }
  .about-info h3{ font-size:1.2rem; }
  .about-role{ font-size:0.85rem; }
  .about-desc{ font-size:0.9rem; line-height:1.65; }
  .about-tags{ justify-content:center; gap:8px; margin-top:14px; }
  .tag{ padding:4px 10px; font-size:0.75rem; border-radius:8px; }
  .works-grid{ grid-template-columns:1fr; gap:12px; margin-bottom:20px; }
  .work-thumb{ height:100px; }
  .work-thumb svg{ width:34px; height:34px; }
  .work-title{ font-size:0.92rem; }
  .fans-cards{ grid-template-columns:1fr; gap:12px; margin-bottom:18px; }
  .fan-card{ padding:18px 14px; }
  .fan-count{ font-size:1.3rem; }
  .projects-grid{ grid-template-columns:1fr; gap:12px; }
  .proj-card{ flex-direction:column; text-align:center; gap:12px; padding:18px 16px; }
  .proj-icon{ width:44px; height:44px; }
  .proj-icon svg{ width:22px; height:22px; }
  .proj-title{ font-size:1rem; }
  .proj-desc{ font-size:0.88rem; line-height:1.6; }
  .proj-tag{ font-size:0.7rem; padding:2px 8px; }
  .links-grid{ grid-template-columns:1fr; gap:12px; }
  .link-item{ padding:14px 16px; }
  .contact-btns{
    display:grid;
    grid-template-columns:repeat(2,1fr);
    gap:10px;
    max-width:100%;
    padding:0 4px;
  }
  .contact-btn{
    padding:12px 10px;
    justify-content:center;
    font-size:0.85rem;
    gap:8px;
    flex-direction:column;
    border-radius:16px;
  }
  .contact-btn svg{ width:22px; height:22px; }
  .contact-note{ margin-top:18px; font-size:0.8rem; padding:0 10px; }
  .timeline{ padding-left:18px; margin-left:6px; }
  .timeline::before{ left:2px; width:2px; }
  .tl-item{ padding-left:14px; padding-bottom:22px; }
  .tl-item::before{ left:-17px; width:10px; height:10px; border-width:2px; }
  .tl-year{ font-size:0.8rem; }
  .tl-title{ font-size:1.02rem; }
  .tl-desc{ font-size:0.88rem; line-height:1.65; }
  .partner-wrap{ gap:24px; }
  .partner-card{ flex-direction:column; text-align:center; padding:20px; gap:16px; }
  .partner-logo{ width:76px; height:76px; border-radius:20px; }
  .partner-info h3{ font-size:1.1rem; }
  .partner-subtitle{ font-size:0.82rem; }
  .partner-desc{ font-size:0.88rem; line-height:1.7; }
  .partner-tags{ justify-content:center; gap:8px; margin-top:12px; }
  .partner-features{ grid-template-columns:1fr; gap:12px; }
  .pf-item{ padding:16px; gap:10px; }
  .pf-icon{ width:36px; height:36px; border-radius:10px; }
  .pf-icon svg{ width:18px; height:18px; }
  .pf-title{ font-size:0.95rem; }
  .pf-desc{ font-size:0.82rem; line-height:1.6; }
  .chart-wrap{ padding:12px; }
  .chart-title{ font-size:0.88rem; margin-bottom:6px; }
  .chart-box{ height:200px; }
  .page-dots{
    right:8px; gap:8px; padding:6px 4px;
    bottom:calc(var(--tab-h) + env(safe-area-inset-bottom, 0px) + 12px);
    top:auto; transform:none; flex-direction:row;
    background:var(--nav-bg);
    backdrop-filter:blur(8px);
    -webkit-backdrop-filter:blur(8px);
    border:1px solid var(--rule);
    border-radius:999px;
  }
  .page-dot{ width:7px; height:7px; }
  .page-dot.active{ width:9px; height:9px; }
  .filing-bar{
    width:95%; font-size:0.68rem; gap:6px; padding:8px 10px;
    bottom:calc(var(--tab-h) + env(safe-area-inset-bottom, 0px) + 2px);
  }
}

@media (max-width:420px){
  :root{ --nav-h: 48px; --tab-h: 58px; }
  .nav-brand{ font-size:0.88rem; }
  .navbar{ padding:0 10px; gap:6px; }
  .music-toggle,
  .lang-toggle,
  .theme-toggle{ width:34px; height:34px; }
  .page-head .page-icon{ width:32px; height:32px; }
  .page-head .page-icon svg{ width:18px; height:18px; }
  .page-head h2{ font-size:1.15rem; }
  .typed{ font-size:clamp(1.8rem, 12vw, 3.0rem); }
  .typed-sub{ font-size:0.78rem; margin-top:10px; }
  .about-avatar{ width:92px; height:92px; border-radius:20px; }
  .about-info h3{ font-size:1.05rem; }
  .about-desc{ font-size:0.85rem; }
  .tag{ padding:3px 8px; font-size:0.7rem; }
  .proj-card{ padding:14px 12px; gap:10px; }
  .contact-btn{ padding:10px 8px; font-size:0.78rem; }
  .contact-btn svg{ width:20px; height:20px; }
  .work-thumb{ height:88px; }
  .filing-bar{ font-size:0.62rem; padding:6px 8px; }
}


/* ============================================================
   桌面端 ≥761px：如果HTML默认写了.tab-bar，或JS误加了.tab-bar，彻底覆盖回顶部横排样式
   ============================================================ */
@media (min-width:761px){
  :root{ --tab-h: 0px; }
  #navItems,
  #navItems.tab-bar,
  .nav-items,
  .nav-items.tab-bar{
    position:relative !important;
    left:auto !important; right:auto !important; bottom:auto !important; top:auto !important;
    z-index:auto !important;
    display:flex !important;
    align-items:center !important;
    justify-content:flex-start !important;
    padding:0 !important;
    height:auto !important;
    min-height:auto !important;
    background:transparent !important;
    backdrop-filter:none !important;
    -webkit-backdrop-filter:none !important;
    border:none !important;
    border-top:none !important;
    border-radius:0 !important;
    flex:1 !important;
    gap:4px !important;
  }
  #navItems .nav-btn,
  .nav-items .nav-btn,
  #navItems.tab-bar .nav-btn,
  .nav-items.tab-bar .nav-btn{
    flex:none !important;
    display:inline-flex !important;
    flex-direction:row !important;
    gap:0 !important;
    padding:8px 14px !important;
    height:auto !important;
    min-height:auto !important;
    font-size:0.92rem !important;
    border-radius:8px !important;
    color:var(--text) !important;
    background:transparent !important;
  }
  #navItems .nav-btn.active,
  .nav-items .nav-btn.active{
    background:transparent !important;
    color:var(--accent) !important;
  }
  #navItems .nav-btn .tab-icon,
  .nav-items .nav-btn .tab-icon{ display:none !important; }
  #navItems .nav-btn .tab-label,
  .nav-items .nav-btn .tab-label{
    display:inline !important;
    font-size:inherit !important;
    font-weight:inherit !important;
    line-height:inherit !important;
  }
  #navItems .nav-indicator,
  .nav-items .nav-indicator{ display:block !important; }
  .page-inner{
    padding-bottom:0 !important;
    padding-top:calc(var(--nav-h) + 16px) !important;
    max-height:calc(100dvh - var(--nav-h) - 40px) !important;
    max-height:calc(100vh - var(--nav-h) - 40px) !important;
  }
  .page-dots{
    right:16px !important;
    bottom:auto !important;
    top:50% !important;
    transform:translateY(-50%) !important;
    flex-direction:column !important;
    padding:10px 6px !important;
    background:transparent !important;
    backdrop-filter:none !important;
    -webkit-backdrop-filter:none !important;
    border:none !important;
    border-radius:0 !important;
  }
  .scroll-hint{
    bottom:30px !important;
  }
  .filing-bar{`n    bottom:0 !important;`n  }
}


/* 减弱动画偏好 */
@media (prefers-reduced-motion:reduce){
  *{animation-duration:0.01ms !important;transition-duration:0.01ms !important;}
}




/* ---------- 背景装饰 ---------- */
.bg-decor{
  position:fixed;inset:0;z-index:-1;pointer-events:none;overflow:hidden;
}
#bgStarsCanvas{
  position:absolute;inset:0;width:100%;height:100%;display:block;
  opacity:0;transition:opacity 0.6s var(--ease);
}
html.light-mode #bgStarsCanvas{opacity:1;}

/* 柔和点缀层：浅色/深色共用，低存在感 */
.bg-decor::before,
.bg-decor::after{content:"";position:absolute;inset:0;}
.bg-decor::before{
  background-image:
    radial-gradient(1400px 900px at 12% 8%, rgba(14,165,233,0.085), transparent 60%),
    radial-gradient(1100px 780px at 88% 92%, rgba(125,211,252,0.07), transparent 62%),
    linear-gradient(rgba(14,165,233,0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(14,165,233,0.035) 1px, transparent 1px);
  background-size:100% 100%, 100% 100%, 60px 60px, 60px 60px;
  opacity:0.9;
}
html.light-mode .bg-decor::before{
  background-image:
    radial-gradient(1400px 900px at 20% 0%, rgba(56,189,248,0.09), transparent 55%),
    radial-gradient(1000px 760px at 80% 100%, rgba(125,211,252,0.08), transparent 58%),
    linear-gradient(rgba(15,23,42,0.055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(15,23,42,0.055) 1px, transparent 1px);
  background-size:100% 100%, 100% 100%, 68px 68px, 68px 68px;
  opacity:0.9;
}
.bg-decor::after{
  background:
    radial-gradient(520px 360px at 70% 20%, rgba(125,211,252,0.045), transparent 70%),
    radial-gradient(480px 320px at 25% 85%, rgba(14,165,233,0.04), transparent 70%);
  opacity:0.9;
}
html.light-mode .bg-decor::after{
  background:
    radial-gradient(620px 420px at 70% 18%, rgba(125,211,252,0.055), transparent 70%),
    radial-gradient(560px 380px at 28% 88%, rgba(56,189,248,0.05), transparent 70%);
  opacity:0.9;
}

/* 封面内部层抬高，确保封面 PNG 背景 + 蒙版盖过全局装饰 */
.page-cover .bg-layer{z-index:1;}
.page-cover .mask-layer{z-index:2;}
.page-cover .text-layer{z-index:3;}
.page-cover .scroll-hint{z-index:3;}


/* ============================================================
   底部 Tab Bar 导航栏（移动端）
   ============================================================ */
#navItems.tab-bar{
  position:fixed;
  left:0; right:0; bottom:0;
  z-index:99;
  display:flex;
  align-items:center;
  justify-content:space-around;
  padding:6px 8px calc(6px + env(safe-area-inset-bottom, 0px)) 8px;
  height:calc(var(--tab-h) + env(safe-area-inset-bottom, 0px));
  background:var(--nav-bg);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-top:1px solid var(--rule);
  border-radius:0;
  gap:2px;
  flex:0 0 auto;
}
#navItems.tab-bar .nav-btn{
  flex:1 1 0;
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:3px;
  padding:4px 2px;
  height:100%;
  min-height:48px;
  font-size:0.68rem;
  border-radius:10px;
  color:var(--text-muted);
  background:transparent;
  white-space:nowrap;
  position:relative;
}
#navItems.tab-bar .nav-btn.active{
  color:var(--accent);
  background:var(--card-bg);
}
#navItems.tab-bar .nav-btn .tab-icon{
  display:flex;
  width:22px; height:22px;
  align-items:center; justify-content:center;
}
#navItems.tab-bar .nav-btn .tab-icon svg{
  width:22px; height:22px;
  stroke-width:1.8;
}
#navItems.tab-bar .nav-btn .tab-label{
  font-size:0.68rem;
  line-height:1;
  font-weight:500;
}
#navItems.tab-bar .nav-indicator{ display:none !important; }

.nav-btn .tab-icon{ display:none; }
.nav-btn .tab-label{ display:inline; }

.snap-container > *,
.page-inner > *,
.partner-wrap,
.about-wrap,
.chart-wrap,
.fan-card,
.proj-card,
.work-card,
.link-item,
.contact-btns{ max-width:100%; }


/* ============================================================
   第三层兜底：无论 animation 类怎么 remove/add，只要 in-view + finished 标过
   page-inner / text-layer 永远保持不透明（防止 forwards 解除 + 新动画 0% 帧挤一帧透明）
   ============================================================ */
.snap-page.in-view.animation-finished .page-inner,
.snap-page.in-view.animation-finished .text-layer{
  opacity: 1 !important;
  transform: translateY(0) !important;
  -webkit-transform: translateY(0) !important;
  filter: blur(0) !important;
  visibility: visible !important;
}
.snap-page.page-cover.in-view .text-layer{
  opacity: 1 !important;
}