/* =========================================================================
   视频剪辑师作品集 · 简约深色
   -------------------------------------------------------------------------
   设计原则：只用最普通、最稳的 CSS（块级 / flex / grid），
   不用绝对定位装饰、不用自定义光标、不用滤镜动画 —— 少一层机制就少一个坑。
   改配色只需改 :root 里的变量。
   ========================================================================= */

:root{
  --bg:        #08080a;
  --bg-soft:   #0d0d10;
  --card:      #131317;
  --line:      rgba(255,255,255,.10);
  --line-2:    rgba(255,255,255,.20);

  --fg:        #f2efe9;
  --fg-2:      #a8a49c;
  --fg-3:      #6f6c66;

  --accent:    #d8b56a;          /* 金 */
  --accent-2:  #f0dca8;          /* 浅金 */
  --accent-ink:#141007;          /* 金色底上的文字用深色，对比才好 */
  --glow:      rgba(216,181,106,.18);

  --font: "Inter","Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;

  --shell: 1440px;               /* 内容最大宽度：超宽屏下不会显得空 */
  --pad: clamp(20px,4vw,64px);
  --r: 12px;
  --ease: cubic-bezier(.4,0,.2,1);
}

*,*::before,*::after{ box-sizing:border-box; }
html,body{ max-width:100%; overflow-x:clip; }

body{
  margin:0;
  background:var(--bg);
  color:var(--fg);
  font-family:var(--font);
  font-size:16px;
  line-height:1.75;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
}
body.is-lock{ overflow:hidden; }

img,video,iframe{ display:block; max-width:100%; }
iframe{ border:0; }
a{ color:inherit; text-decoration:none; }
button{ font:inherit; color:inherit; background:none; border:0; cursor:pointer; }
ul,ol,dl,dd,h1,h2,h3,p,figure{ margin:0; padding:0; list-style:none; }
:focus-visible{ outline:2px solid var(--accent); outline-offset:3px; border-radius:4px; }

/* 唯一的容器类：所有内容都走它，保证左右对齐完全一致 */
.shell{
  width:100%;
  max-width:var(--shell);
  margin-inline:auto;
  padding-inline:var(--pad);
}

/* =========================================================================
   顶栏
   ========================================================================= */
.nav{
  position:sticky; top:0; z-index:100;
  background:rgba(10,10,12,.86);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
}
.nav__in{
  display:flex; align-items:center; gap:24px;
  min-height:68px;
}
.logo{ display:flex; align-items:center; gap:10px; margin-right:auto; }
.logo__dot{ width:9px; height:9px; border-radius:2px; background:var(--accent); flex:none; }
.logo__txt{ display:flex; flex-direction:column; line-height:1.3; }
.logo__txt b{ font-size:15px; font-weight:600; }
.logo__txt i{ font-style:normal; font-size:11.5px; color:var(--fg-3); }

.nav__menu{ display:flex; gap:28px; }
.nav__menu a{
  font-size:14.5px; color:var(--fg-2);
  padding:6px 0; border-bottom:1px solid transparent;
  transition:color .2s var(--ease),border-color .2s var(--ease);
}
.nav__menu a:hover{ color:var(--fg); border-color:var(--accent); }

.nav__burger{ display:none; width:40px; height:40px; position:relative; }
.nav__burger span{
  position:absolute; left:9px; right:9px; height:2px; background:var(--fg);
  transition:transform .25s var(--ease);
}
.nav__burger span:first-child{ top:15px; }
.nav__burger span:last-child{ top:23px; }
.nav__burger[aria-expanded="true"] span:first-child{ transform:translateY(4px) rotate(45deg); }
.nav__burger[aria-expanded="true"] span:last-child{ transform:translateY(-4px) rotate(-45deg); }

/* =========================================================================
   首屏
   ========================================================================= */
.hero{ padding:clamp(64px,9vw,128px) 0 clamp(48px,6vw,88px); }

.hero__tag{
  font-size:12.5px; font-weight:500;
  letter-spacing:.18em; color:var(--accent);
  margin-bottom:18px;
}
.hero__title{
  font-size:clamp(34px,5.6vw,76px);
  line-height:1.2;
  font-weight:700;
  letter-spacing:0;
  max-width:22em;
  margin-bottom:22px;
}
.hero__sub{
  font-size:clamp(15px,1.3vw,18px);
  color:var(--fg-2);
  max-width:44em;
  margin-bottom:36px;
}

.hero__btns{ display:flex; flex-wrap:wrap; gap:12px; margin-bottom:clamp(40px,6vw,72px); }

.btn{
  display:inline-flex; align-items:center; justify-content:center;
  padding:13px 26px; border-radius:100px;
  font-size:14.5px; font-weight:500;
  border:1px solid transparent;
  transition:background .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease);
}
.btn--main{ background:linear-gradient(135deg,var(--accent-2),var(--accent)); color:var(--accent-ink); font-weight:600; }
.btn--main:hover{ filter:brightness(1.08); }
.btn--line{ border-color:var(--line-2); color:var(--fg); }
.btn--line:hover{ border-color:var(--accent); color:var(--accent-2); }

.stats{
  display:flex; flex-wrap:wrap;
  gap:clamp(28px,5vw,72px);
  padding-top:28px; border-top:1px solid var(--line);
}
.stats li b{
  display:block;
  font-size:clamp(24px,2.6vw,34px);
  font-weight:700; line-height:1.2;
}
.stats li span{ font-size:13px; color:var(--fg-3); }

/* =========================================================================
   区块通用
   ========================================================================= */
.sec{ padding:clamp(56px,7vw,104px) 0; }
.sec--soft{ background:var(--bg-soft); border-block:1px solid var(--line); }

.sec__head{
  display:flex; flex-wrap:wrap; align-items:baseline;
  justify-content:space-between; gap:14px;
  margin-bottom:clamp(24px,3vw,40px);
}
.sec__title{ font-size:clamp(24px,2.8vw,38px); font-weight:700; line-height:1.3; }
.sec__tip{ font-size:13.5px; color:var(--fg-3); }

/* =========================================================================
   分类按钮 + 作品网格
   ========================================================================= */
.tabs{ display:flex; flex-wrap:wrap; gap:8px; margin-bottom:clamp(22px,3vw,34px); }
.tabs button{
  padding:9px 18px; border-radius:100px;
  border:1px solid var(--line); color:var(--fg-2);
  font-size:13.5px;
  transition:background .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease);
}
.tabs button:hover{ color:var(--fg); border-color:var(--line-2); }
.tabs button[aria-pressed="true"]{ background:var(--accent); border-color:var(--accent); color:var(--accent-ink); font-weight:500; }

.grid{
  display:grid; gap:clamp(18px,2.2vw,30px);
  grid-template-columns:repeat(auto-fill,minmax(min(360px,100%),1fr));
}
.grid > *{ min-width:0; }
.grid__empty{ padding:40px 0; color:var(--fg-3); }

/* ---------- 作品卡片 ---------- */
.card{ display:block; width:100%; text-align:left; cursor:pointer; }

.card__thumb{
  position:relative;
  aspect-ratio:16/9;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r);
  overflow:hidden;
  transition:border-color .25s var(--ease);
}
.card:hover .card__thumb{ border-color:var(--line-2); }

.card__thumb img,
.card__thumb video{
  position:absolute; inset:0;
  width:100%; height:100%;
  object-fit:cover;
}
/* 抓帧用的临时 video 完全隐藏（保持层级在封面图之下） */
.card__thumb video.is-probe{
  opacity:0 !important;
  pointer-events:none;
  z-index:0;
}
.card__thumb img{ z-index:1; }

/* ---------- 悬停预览 + 拖动刷帧 ---------- */
.card__thumb video.is-preview{
  position:absolute; inset:0;
  width:100%; height:100%;
  object-fit:cover;
  z-index:2;
  opacity:0;
  pointer-events:none;
  background:#000;
  transition:opacity .25s var(--ease);
}
.card:hover .card__thumb video.is-preview{ opacity:1; }

.scrub-line{
  position:absolute; top:0; bottom:0; left:0;
  width:2px; z-index:5;
  background:var(--accent-2);
  box-shadow:0 0 12px rgba(0,0,0,.8);
  display:none;
  pointer-events:none;
}
.card__thumb.is-scrubbing .scrub-line{ display:block; }
.card__thumb.is-scrubbing{ cursor:ew-resize; }

/* ★ 关键：不设 touch-action，浏览器会把「按住水平拖动」当成翻页/滚动手势，
   直接发出 pointercancel 把拖动打断 —— 表现就是「拖不动」。
   pan-y 表示纵向仍可滚动页面，横向手势归我们处理。 */
.card__thumb{ touch-action:pan-y; }
.card__thumb.is-scrubbing{ touch-action:none; }

.scrub-hint{
  position:absolute; top:12px; left:50%; z-index:6;
  transform:translateX(-50%);
  padding:6px 13px; border-radius:100px;
  background:rgba(8,8,10,.82);
  border:1px solid var(--line-2);
  font-size:12px; color:var(--fg);
  white-space:nowrap;
  opacity:0;
  pointer-events:none;
  transition:opacity .2s var(--ease);
}
/* 鼠标移到卡片上就提示可拖动（不必等视频加载完），拖动中常显 */
.card:hover .scrub-hint,
.card:focus-within .scrub-hint,
.card__thumb.is-scrubbing .scrub-hint{ opacity:1; }

/* 拖动进度条 + 时间码：悬停时显示进度条（提示可左右刷帧），拖动时高亮并显示时间码 */
.scrub-track{
  position:absolute; left:12px; right:12px; bottom:12px; height:3px; z-index:5;
  border-radius:100px;
  background:rgba(255,255,255,.24);
  opacity:0;
  transition:opacity .2s var(--ease);
  pointer-events:none;
}
.card:hover .scrub-track{ opacity:1; }
.scrub-track i{
  display:block; height:100%; border-radius:100px;
  background:var(--accent);
  transform:scaleX(0); transform-origin:left;
}
.scrub-tc{
  position:absolute; left:12px; bottom:24px; z-index:5;
  padding:3px 9px; border-radius:6px;
  background:rgba(8,8,10,.82);
  border:1px solid var(--line-2);
  font-size:12px; color:var(--accent-2);
  font-variant-numeric:tabular-nums;
  display:none;
  pointer-events:none;
}
.card__thumb.is-scrubbing .scrub-tc{ display:block; }

/* 没封面时的占位：渐变 + 播放符号，看起来是「还没加载」而不是「坏了」 */
.card__ph{
  position:absolute; inset:0; z-index:0;
  display:flex; flex-direction:column; align-items:center; justify-content:center; gap:10px;
  background:linear-gradient(135deg,#191920,#0e0e12);
  color:var(--fg-3);
}
.card__ph::before{
  content:""; width:0; height:0;
  border-style:solid; border-width:11px 0 11px 18px;
  border-color:transparent transparent transparent var(--fg-3);
  opacity:.5; margin-left:5px;
}
.card__ph span{ font-size:12.5px; letter-spacing:.14em; }

.card__badge{
  position:absolute; top:12px; left:12px; z-index:2;
  padding:5px 11px; border-radius:100px;
  background:rgba(10,10,12,.78);
  border:1px solid var(--line-2);
  font-size:12px; color:var(--fg);
}
.card__dur{
  position:absolute; right:12px; bottom:12px; z-index:2;
  padding:3px 9px; border-radius:6px;
  background:rgba(10,10,12,.78);
  font-size:12px; color:var(--fg-2);
}
/* 播放按钮只做一个小圆形，不要整块遮罩——否则会盖住悬停预览的画面 */
.card__play{
  position:absolute; inset:0; z-index:4;
  display:grid; place-items:center;
  background:linear-gradient(180deg,rgba(8,8,10,.12),rgba(8,8,10,.45));
  opacity:0; transition:opacity .2s var(--ease);
  pointer-events:none;             /* 让指针事件落到缩略图上，拖动刷帧才有效 */
}
.card:hover .card__play{ opacity:1; }
.card__play i{
  width:56px; height:56px; border-radius:50%;
  background:var(--accent);
  display:grid; place-items:center;
}
.card__play i::before{
  content:""; width:0; height:0;
  border-style:solid; border-width:9px 0 9px 15px;
  border-color:transparent transparent transparent #fff;
  margin-left:4px;
}

.card__info{ padding:14px 2px 0; }
.card__name{ font-size:17px; font-weight:600; line-height:1.4; }
.card__type{ margin-top:4px; font-size:13.5px; color:var(--fg-3); }
.card__tags{ display:flex; flex-wrap:wrap; gap:6px; margin-top:10px; }
.card__tags span{
  font-size:12px; color:var(--fg-2);
  padding:3px 9px; border:1px solid var(--line); border-radius:6px;
}

/* =========================================================================
   关于
   ========================================================================= */
.about{
  display:grid;
  grid-template-columns:minmax(0,1.4fr) minmax(0,1fr);
  gap:clamp(28px,5vw,72px);
  align-items:start;
}
.about__lead{ font-size:19px; font-weight:600; margin-bottom:16px; line-height:1.6; }
.about__body p{ color:var(--fg-2); font-size:15.5px; margin-bottom:14px; max-width:52em; }
.about__body p:last-child{ margin-bottom:0; }
.about__body strong{ color:var(--fg); font-weight:600; }

.skills{ display:flex; flex-direction:column; gap:18px; }
.skills li{ }
.skills .sk__top{
  display:flex; justify-content:space-between; gap:12px;
  font-size:14px; margin-bottom:8px;
}
.skills .sk__top em{ font-style:normal; color:var(--fg-3); }
.skills .sk__bar{ height:4px; border-radius:100px; background:rgba(255,255,255,.1); overflow:hidden; }
.skills .sk__bar i{ display:block; height:100%; background:var(--accent); border-radius:100px; width:0; transition:width 1s var(--ease); }

/* =========================================================================
   页脚
   ========================================================================= */
.foot{ border-top:1px solid var(--line); background:var(--bg-soft); }
.foot__btns{ display:flex; flex-wrap:wrap; gap:12px; margin-bottom:clamp(32px,4vw,52px); }
.foot__meta{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(min(200px,100%),1fr));
  gap:22px;
  padding-top:26px; border-top:1px solid var(--line);
}
.foot__meta dt{ font-size:12.5px; color:var(--fg-3); margin-bottom:5px; }
.foot__meta dd{ font-size:15.5px; }
.foot__meta a:hover{ color:var(--accent-2); }
.foot__note{ margin-top:30px; font-size:13px; color:var(--fg-3); }

/* =========================================================================
   全屏播放
   ========================================================================= */
.play{
  position:fixed; inset:0; z-index:500;
  background:#000;
  display:flex; flex-direction:column;
}
.play[hidden]{ display:none; }

.play__bar{
  display:flex; align-items:center; justify-content:space-between;
  gap:16px; padding:14px clamp(16px,3vw,40px);
  border-bottom:1px solid var(--line);
}
.play__meta{ display:flex; align-items:baseline; gap:14px; flex-wrap:wrap; min-width:0; }
.play__meta b{ font-size:17px; font-weight:600; }
.play__meta span{ font-size:13.5px; color:var(--fg-3); }
.play__x{
  width:40px; height:40px; flex:none; border-radius:50%;
  border:1px solid var(--line-2); color:var(--fg);
  display:grid; place-items:center; font-size:16px;
  transition:background .2s var(--ease),color .2s var(--ease);
}
.play__x:hover{ background:var(--fg); color:#000; }

.play__stage{
  flex:1; min-height:0; padding:0 clamp(8px,2vw,32px);
  display:flex; align-items:center; justify-content:center;
}
.play__stage video{
  width:100%; height:100%; object-fit:contain; background:#000;
}
.play__stage img{ max-width:100%; max-height:100%; object-fit:contain; }
.play__msg{ color:var(--fg-2); font-size:15px; text-align:center; line-height:2; padding:32px; }

.play__bot{
  padding:14px clamp(16px,3vw,40px) 22px;
  display:grid; grid-template-columns:auto 1fr; gap:10px 20px; align-items:center;
}
.play__tc{ font-size:13.5px; color:var(--fg-2); font-variant-numeric:tabular-nums; }
.play__keys{ font-size:12.5px; color:var(--fg-3); text-align:right; }
.play__prog{
  grid-column:1/-1;
  height:4px; border-radius:100px;
  background:rgba(255,255,255,.16);
  cursor:pointer;
}
.play__prog i{ display:block; height:100%; border-radius:100px; background:var(--accent); transform:scaleX(0); transform-origin:left; }

/* =========================================================================
   响应式
   ========================================================================= */
@media (max-width:900px){
  .about{ grid-template-columns:1fr; }
}

@media (max-width:720px){
  .nav__burger{ display:block; }
  .nav__menu{
    position:absolute; left:0; right:0; top:100%;
    flex-direction:column; gap:0;
    background:var(--bg);
    border-bottom:1px solid var(--line);
    padding:8px var(--pad) 18px;
    display:none;
  }
  .nav__menu.is-open{ display:flex; }
  .nav__menu a{ padding:14px 0; border-bottom:1px solid var(--line); font-size:16px; }

  .hero__btns .btn{ flex:1; }
  .stats{ gap:22px 32px; }
  .play__bot{ grid-template-columns:1fr; }
  .play__keys{ text-align:left; }
}

@media (prefers-reduced-motion:reduce){
  *{ transition-duration:.01ms !important; animation-duration:.01ms !important; }
}