/* 折耳根 · 优雅杂志风，深色暖调 */
:root{
  --bg:#171310;
  --bg2:#201914;
  --panel:#241c16;
  --ink:#ece2d2;
  --muted:#ab9c86;
  --faint:#7d6f5d;
  --accent:#d9a05b;
  --accent2:#c96f3f;
  --line:rgba(236,226,210,.14);
  --serif: Georgia, 'Times New Roman', 'Songti SC', 'STSong', 'Noto Serif SC', serif;
  --sans: -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
[hidden]{display:none !important}
html{scroll-behavior:smooth}
body{
  background:var(--bg);
  color:var(--ink);
  font-family:var(--sans);
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer}
input{font-family:inherit}

/* ---------- 滚动浮现 ---------- */
.reveal{opacity:0;transform:translateY(28px);transition:opacity .9s ease,transform .9s cubic-bezier(.22,1,.36,1)}
.reveal.inview{opacity:1;transform:translateY(0)}
.hero .reveal{transition-delay:calc(var(--d,0)*.12s)}
.hero-title.reveal{--d:1}
.hero-sub.reveal{--d:2}
.hero-meta.reveal{--d:3}
.hero-cta.reveal{--d:4}

/* ---------- 顶栏 ---------- */
.topbar{
  position:fixed;top:0;left:0;right:0;z-index:100;
  display:flex;align-items:center;gap:28px;
  padding:16px 32px;
  background:linear-gradient(to bottom, rgba(23,19,16,.85), rgba(23,19,16,0));
  transition:background .4s ease;
}
.topbar.scrolled{background:rgba(23,19,16,.92);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.brand{font-family:var(--serif);font-size:24px;letter-spacing:.18em;white-space:nowrap}
.topnav{display:flex;gap:22px;margin-left:auto;overflow-x:auto;scrollbar-width:none}
.topnav::-webkit-scrollbar{display:none}
.topnav a{font-size:14px;color:var(--muted);white-space:nowrap;transition:color .3s}
.topnav a:hover{color:var(--ink)}
.btn-ghost{
  background:transparent;color:var(--ink);
  border:1px solid var(--line);border-radius:999px;
  padding:8px 18px;font-size:14px;white-space:nowrap;
  transition:border-color .3s, background .3s;
}
.btn-ghost:hover{border-color:var(--accent);background:rgba(217,160,91,.12)}
.btn-solid{
  background:var(--accent);color:#1c130a;border:none;border-radius:999px;
  padding:10px 26px;font-size:15px;font-weight:600;
  transition:filter .3s, transform .2s;
}
.btn-solid:hover{filter:brightness(1.1)}
.btn-solid:active{transform:scale(.97)}

/* ---------- 封面 ---------- */
.hero{position:relative;height:100svh;min-height:560px;overflow:hidden;display:flex;align-items:center;justify-content:center;text-align:center}
.hero-bg{
  position:absolute;inset:0;
  background:url('img/p06.jpg') center/cover no-repeat;
  animation:heroZoom 26s ease-in-out infinite alternate;
}
@keyframes heroZoom{from{transform:scale(1)}to{transform:scale(1.12)}}
.hero-shade{position:absolute;inset:0;background:linear-gradient(to bottom, rgba(23,19,16,.35), rgba(23,19,16,.55) 60%, var(--bg))}
.hero-inner{position:relative;z-index:2;padding:0 24px}
.hero-kicker{font-size:13px;letter-spacing:.42em;color:var(--accent);margin-bottom:18px}
.hero-title{
  font-family:var(--serif);font-weight:400;
  font-size:clamp(72px,15vw,168px);line-height:1.05;letter-spacing:.14em;
  text-shadow:0 8px 60px rgba(0,0,0,.5);
}
.hero-sub{margin-top:20px;font-size:clamp(16px,2.4vw,21px);letter-spacing:.14em;color:var(--ink)}
.hero-meta{margin-top:10px;font-size:14px;letter-spacing:.24em;color:var(--muted)}
.hero-cta{
  display:inline-block;margin-top:38px;
  border:1px solid rgba(236,226,210,.5);border-radius:999px;
  padding:12px 30px;font-size:15px;letter-spacing:.12em;
  transition:background .3s, border-color .3s;
}
.hero-cta:hover{background:rgba(236,226,210,.12);border-color:var(--ink)}
.hero-scroll{
  position:absolute;bottom:26px;left:50%;transform:translateX(-50%);
  font-size:12px;letter-spacing:.32em;color:var(--muted);
  animation:bob 2.2s ease-in-out infinite;
}
@keyframes bob{0%,100%{transform:translate(-50%,0)}50%{transform:translate(-50%,7px)}}

/* ---------- 章节 ---------- */
main{position:relative;z-index:1}
.chapter{max-width:1080px;margin:0 auto;padding:120px 24px 40px;content-visibility:auto;contain-intrinsic-size:auto 640px}
.chapter-head{display:flex;align-items:flex-end;gap:26px;flex-wrap:wrap;margin-bottom:44px}
.chapter-no{
  font-family:var(--serif);font-size:clamp(64px,10vw,110px);line-height:.9;
  color:transparent;-webkit-text-stroke:1px rgba(217,160,91,.65);
}
.chapter-titles h2{font-family:var(--serif);font-weight:400;font-size:clamp(38px,6vw,58px);line-height:1.1;letter-spacing:.08em}
.chapter-en{font-size:12px;letter-spacing:.34em;color:var(--faint);margin-top:6px}
.chapter-intro{margin-left:auto;font-size:16px;color:var(--muted);max-width:300px}
.chapter-feature{border-radius:14px;overflow:hidden;position:relative}
.chapter-feature img{width:100%;aspect-ratio:3/2;object-fit:cover;transform:scale(1.12);transition:transform 1.8s cubic-bezier(.22,1,.36,1)}
.chapter-feature.inview img{transform:scale(1)}
.chapter-feature figcaption{
  position:absolute;left:0;right:0;bottom:0;padding:34px 22px 16px;
  background:linear-gradient(to top, rgba(0,0,0,.65), transparent);
  font-size:15px;letter-spacing:.06em;
}
.filmstrip{
  display:flex;gap:12px;margin-top:16px;
  overflow-x:auto;scroll-snap-type:x mandatory;
  padding-bottom:8px;scrollbar-width:thin;scrollbar-color:var(--faint) transparent;
}
.film-thumb{
  flex:0 0 auto;width:196px;height:130px;padding:0;border:none;background:none;
  border-radius:9px;overflow:hidden;scroll-snap-align:start;
}
.film-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease, filter .5s ease}
.film-thumb:hover img{transform:scale(1.07);filter:brightness(1.08)}

/* ---------- 区块头 ---------- */
.section-head{max-width:1080px;margin:0 auto;padding:110px 24px 40px;text-align:center}
.section-no{display:block;font-size:12px;letter-spacing:.4em;color:var(--accent);margin-bottom:12px}
.section-head h2{font-family:var(--serif);font-weight:400;font-size:clamp(36px,6vw,54px);letter-spacing:.1em}
.section-intro{margin-top:12px;color:var(--muted);font-size:16px}

/* ---------- 牌面 ---------- */
.deck-section{background:var(--bg2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.deck-wrap{max-width:1080px;margin:0 auto;padding:0 24px 110px}
.deck-stage{
  position:relative;height:520px;
  touch-action:pan-y;user-select:none;-webkit-user-select:none;
  cursor:grab;
}
.deck-stage.dragging{cursor:grabbing}
.deck-card{
  position:absolute;left:50%;top:26px;
  width:min(320px,72vw);
  margin:0;transform-origin:center 12%;
  transition:transform .55s cubic-bezier(.22,1,.36,1), opacity .55s ease;
  will-change:transform;
  contain:layout style;
}
.deck-stage.dragging .deck-card{transition:none}
.deck-card img{
  width:100%;aspect-ratio:3/2;object-fit:cover;border-radius:12px;
  box-shadow:0 24px 60px rgba(0,0,0,.55), 0 2px 0 rgba(255,255,255,.06) inset;
  pointer-events:none;
}
.deck-card figcaption{
  text-align:center;margin-top:12px;font-size:14px;color:var(--muted);letter-spacing:.05em;
  pointer-events:none;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
}
.deck-controls{display:flex;align-items:center;justify-content:center;gap:26px;margin-top:8px}
.deck-btn{
  width:48px;height:48px;border-radius:50%;
  border:1px solid var(--line);background:transparent;color:var(--ink);
  font-size:26px;line-height:1;transition:border-color .3s, background .3s;
}
.deck-btn:hover{border-color:var(--accent);background:rgba(217,160,91,.12)}
.deck-counter{font-family:var(--serif);font-size:18px;letter-spacing:.14em;min-width:90px;text-align:center}
.deck-hint{text-align:center;color:var(--faint);font-size:13px;margin-top:14px;letter-spacing:.1em}

/* ---------- 大家新传的 ---------- */
.uploads-section{max-width:1080px;margin:0 auto;padding-bottom:40px}
.uploads-grid{
  display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));
  gap:16px;padding:0 24px;
}
.uploads-grid figure{border-radius:12px;overflow:hidden;cursor:pointer;position:relative}
.uploads-grid img{width:100%;aspect-ratio:3/2;object-fit:cover;transition:transform .5s ease}
.uploads-grid figure:hover img{transform:scale(1.06)}
.uploads-grid figcaption{
  position:absolute;left:0;right:0;bottom:0;padding:26px 14px 10px;
  background:linear-gradient(to top, rgba(0,0,0,.6), transparent);font-size:13px;
}

/* ---------- 上传 ---------- */
.upload-section{padding-bottom:120px}
.upload-box{
  max-width:720px;margin:0 auto;padding:36px 32px;
  background:var(--panel);border:1px solid var(--line);border-radius:18px;
}
.upload-lock{display:flex;gap:12px;flex-wrap:wrap}
.upload-lock input{
  flex:1;min-width:200px;background:var(--bg);color:var(--ink);
  border:1px solid var(--line);border-radius:999px;
  padding:12px 20px;font-size:15px;outline:none;
}
.upload-lock input:focus{border-color:var(--accent)}
.upload-msg{width:100%;font-size:14px;color:var(--accent2);min-height:1.4em;margin-top:10px}
.upload-msg.ok{color:var(--accent)}
.dropzone{
  border:1.5px dashed rgba(217,160,91,.55);border-radius:14px;
  padding:44px 24px;text-align:center;
  transition:background .3s, border-color .3s;
}
.dropzone.dragover{background:rgba(217,160,91,.1);border-color:var(--accent)}
.dropzone-title{font-size:17px;letter-spacing:.04em}
.dropzone-sub{font-size:13px;color:var(--muted);margin:8px 0 20px}
.upload-progress{margin-top:22px}
.progress-bar{height:6px;border-radius:99px;background:rgba(236,226,210,.14);overflow:hidden}
.progress-fill{height:100%;width:0;background:var(--accent);border-radius:99px;transition:width .2s ease}
.progress-text{font-size:13px;color:var(--muted);margin-top:8px;text-align:center}
.upload-list{list-style:none;margin-top:16px}
.upload-list li{
  display:flex;justify-content:space-between;gap:12px;
  padding:10px 4px;border-bottom:1px solid var(--line);font-size:14px;
}
.upload-list li .ok{color:var(--accent)}
.upload-list li .err{color:var(--accent2)}

/* ---------- 页脚 ---------- */
.footer{padding:80px 24px 70px;text-align:center;border-top:1px solid var(--line)}
.footer p{font-family:var(--serif);font-size:22px;letter-spacing:.22em}
.footer-sub{font-size:13px;color:var(--muted);letter-spacing:.2em;margin-top:10px}

/* ---------- 大图查看器 ---------- */
.lightbox{
  position:fixed;inset:0;z-index:300;
  background:rgba(10,8,6,.94);backdrop-filter:blur(8px);
  display:flex;align-items:center;justify-content:center;
}
.lb-figure{max-width:88vw;text-align:center}
.lb-figure img{
  max-width:88vw;max-height:78vh;margin:0 auto;border-radius:10px;
  box-shadow:0 30px 80px rgba(0,0,0,.6);
  animation:lbIn .45s cubic-bezier(.22,1,.36,1);
}
@keyframes lbIn{from{opacity:0;transform:scale(.96)}to{opacity:1;transform:scale(1)}}
.lb-figure figcaption{margin-top:16px;font-size:16px;color:var(--ink);letter-spacing:.05em}
.lb-close{
  position:absolute;top:20px;right:26px;width:48px;height:48px;border-radius:50%;
  border:1px solid var(--line);background:transparent;color:var(--ink);font-size:28px;line-height:1;
}
.lb-nav{
  position:absolute;top:50%;transform:translateY(-50%);
  width:54px;height:54px;border-radius:50%;
  border:1px solid var(--line);background:rgba(23,19,16,.5);color:var(--ink);
  font-size:30px;line-height:1;transition:border-color .3s;
}
.lb-nav:hover{border-color:var(--accent)}
.lb-prev{left:22px}
.lb-next{right:22px}
.lb-counter{
  position:absolute;bottom:22px;left:50%;transform:translateX(-50%);
  font-family:var(--serif);font-size:16px;letter-spacing:.16em;color:var(--muted);
}

/* ---------- 放映 ---------- */
.slideshow{position:fixed;inset:0;z-index:300;background:#0b0806}
.ss-layer{position:absolute;inset:0;opacity:0;transition:opacity 1.2s ease}
.ss-layer.active{opacity:1}
.ss-layer img{width:100%;height:100%;object-fit:contain}
.ss-layer.active img{animation:ssZoom 6s ease forwards}
@keyframes ssZoom{from{transform:scale(1)}to{transform:scale(1.07)}}
.ss-caption{
  position:absolute;left:32px;bottom:30px;z-index:3;
  font-family:var(--serif);font-size:clamp(20px,3.4vw,32px);letter-spacing:.08em;
  text-shadow:0 2px 20px rgba(0,0,0,.7);
}
.ss-controls{
  position:absolute;right:28px;bottom:26px;z-index:3;
  display:flex;align-items:center;gap:14px;
}
.ss-counter{font-family:var(--serif);font-size:16px;letter-spacing:.14em;color:var(--muted)}

/* ---------- 幕布 ---------- */
#curtain{position:fixed;inset:0;z-index:200;pointer-events:none;display:flex}
.curtain-panel{
  flex:1;background:#0e0a08;
  transform:translateY(-102%);
  transition:transform .6s cubic-bezier(.76,0,.24,1);
}
.curtain-panel:nth-child(2){transition-delay:.05s}
.curtain-panel:nth-child(3){transition-delay:.1s}
.curtain-panel:nth-child(4){transition-delay:.15s}
.curtain-panel:nth-child(5){transition-delay:.2s}
#curtain.cover .curtain-panel{transform:translateY(0)}
#curtain.cover.reveal .curtain-panel{transform:translateY(102%)}
.curtain-title{
  position:absolute;inset:0;display:flex;align-items:center;justify-content:center;
  font-family:var(--serif);font-size:clamp(42px,8vw,84px);letter-spacing:.24em;color:var(--ink);
  opacity:0;transition:opacity .35s ease .3s;
}
#curtain.cover:not(.reveal) .curtain-title{opacity:1}

/* ---------- 提示 ---------- */
.toast{
  position:fixed;left:50%;bottom:30px;transform:translateX(-50%);z-index:400;
  background:var(--panel);border:1px solid var(--line);color:var(--ink);
  padding:12px 24px;border-radius:999px;font-size:14px;
  box-shadow:0 16px 40px rgba(0,0,0,.5);
  animation:toastIn .35s ease;
}
@keyframes toastIn{from{opacity:0;transform:translate(-50%,12px)}to{opacity:1;transform:translate(-50%,0)}}

/* ---------- 小屏 ---------- */
@media (max-width: 760px){
  .topbar{padding:12px 16px;gap:14px}
  .topnav{gap:16px}
  .topnav a[href="#deck"], .topnav a[href="#upload"]{display:none}
  .chapter{padding:80px 20px 24px}
  .chapter-intro{margin-left:0;max-width:none}
  .deck-stage{height:420px}
  .deck-card{top:16px}
  .film-thumb{width:150px;height:100px}
  .upload-box{padding:28px 20px}
  .lb-nav{width:44px;height:44px;font-size:24px}
  .lb-prev{left:8px}
  .lb-next{right:8px}
  .ss-caption{left:18px;bottom:86px}
  .ss-controls{right:14px;bottom:22px;left:14px;justify-content:flex-end}
}

@media (prefers-reduced-motion: reduce){
  *,*::before,*::after{animation-duration:.01ms !important;transition-duration:.01ms !important}
  html{scroll-behavior:auto}
}