/* ============================================================
   Design Tokens — 与 prototypes/index.html 保持一致
   ============================================================ */
:root{
  --bg:#08080C;
  --bg-2:#0E0E14;
  --card:#15151D;
  --card-2:#1C1C26;
  --card-3:#23232F;
  --border:rgba(255,255,255,.07);
  --border-2:rgba(255,255,255,.12);
  --text:#F4F4F7;
  --text-2:#9595A6;
  --text-3:#5A5A6B;
  --brand:#FE2C55;
  --brand-dim:rgba(254,44,85,.14);
  --cyan:#25F4EE;
  --ok:#3DD68C;
  --warn:#FBBF24;
  --err:#F87171;
  --r-sm:8px; --r-md:12px; --r-lg:16px; --r-xl:20px;
  --shadow:0 8px 32px rgba(0,0,0,.5);
  --ease:cubic-bezier(.22,1,.36,1);
}
*{margin:0;padding:0;box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html,body{height:100%}
body{
  background:var(--bg);
  color:var(--text);
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:14px; line-height:1.5;
  -webkit-font-smoothing:antialiased;
  display:flex; align-items:center; justify-content:center;
  padding:32px;
}
body::before{
  content:""; position:fixed; inset:0; pointer-events:none;
  background:
    radial-gradient(600px 400px at 15% 0%, rgba(254,44,85,.10), transparent 70%),
    radial-gradient(500px 400px at 85% 100%, rgba(37,244,238,.06), transparent 70%);
}
::-webkit-scrollbar{width:0;height:0}

/* ============================================================
   手机外框
   ============================================================ */
.phone{
  position:relative;z-index:2;
  width:390px;height:844px;max-height:calc(100vh - 64px);
  background:#000;border-radius:44px;padding:11px;
  box-shadow:0 0 0 1.5px rgba(255,255,255,.10), 0 40px 80px rgba(0,0,0,.7);
}
.screen{
  width:100%;height:100%;background:var(--bg-2);
  border-radius:34px;overflow-y:auto;overflow-x:hidden;
  position:relative;display:flex;flex-direction:column;
  scroll-behavior:smooth;
}
.statusbar{
  position:sticky;top:0;z-index:20;flex-shrink:0;
  height:44px;display:flex;align-items:center;justify-content:space-between;
  padding:0 24px;font-size:12px;font-weight:600;
  background:linear-gradient(var(--bg-2) 60%,transparent);
  backdrop-filter:blur(8px);
}
.statusbar .icons{display:flex;gap:5px;align-items:center;opacity:.9}

/* ---------- 页头 ---------- */
.app-header{padding:8px 20px 20px;flex-shrink:0}
.brand{display:flex;align-items:center;gap:10px}
.brand-logo{
  width:34px;height:34px;border-radius:10px;flex-shrink:0;
  background:linear-gradient(135deg,var(--brand),#FF6B8A);
  display:grid;place-items:center;
  box-shadow:0 4px 16px rgba(254,44,85,.35);
}
.brand-logo svg{width:18px;height:18px}
.brand-text h2{font-size:16px;font-weight:700;letter-spacing:-.2px}
.brand-text p{font-size:11px;color:var(--text-3);margin-top:1px}
.badge-local{
  margin-left:auto;font-size:10px;color:var(--cyan);
  border:1px solid rgba(37,244,238,.3);background:rgba(37,244,238,.08);
  padding:3px 8px;border-radius:20px;font-weight:600;
}

/* ---------- 主内容 ---------- */
.content{padding:0 20px 28px;flex:1}

/* ---------- 输入卡 ---------- */
.input-card{
  background:var(--card);border:1px solid var(--border);
  border-radius:var(--r-lg);padding:14px;transition:.25s var(--ease);
}
.input-card:focus-within{border-color:var(--border-2);box-shadow:0 0 0 3px rgba(254,44,85,.08)}
textarea{
  width:100%;height:76px;background:transparent;border:0;outline:0;resize:none;
  color:var(--text);font-family:inherit;font-size:13.5px;line-height:1.65;
}
textarea::placeholder{color:var(--text-3)}
.input-foot{
  display:flex;align-items:center;gap:8px;
  padding-top:10px;border-top:1px solid var(--border);margin-top:4px;
}
.hint-mini{font-size:11px;color:var(--text-3);margin-right:auto}
.btn{
  border:0;font-family:inherit;font-size:13px;font-weight:600;
  border-radius:10px;padding:9px 14px;cursor:pointer;
  display:inline-flex;align-items:center;justify-content:center;gap:6px;
  transition:.18s var(--ease);white-space:nowrap;
}
.btn:active{transform:scale(.97)}
.btn svg{width:14px;height:14px}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 4px 14px rgba(254,44,85,.3)}
.btn-primary:hover{background:#FF3D63}
.btn-primary:disabled{background:var(--card-3);color:var(--text-3);box-shadow:none;cursor:not-allowed;transform:none}
.btn-ghost{background:var(--card-2);color:var(--text-2);border:1px solid var(--border)}
.btn-ghost:hover{background:var(--card-3);color:var(--text)}
.btn-block{width:100%;padding:13px;font-size:14px;border-radius:var(--r-md)}

/* ---------- 状态区 ---------- */
#stateArea{margin-top:16px}
.state{animation:fadeUp .35s var(--ease)}
@keyframes fadeUp{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}

/* --- 空置态 --- */
.empty{
  border:1px dashed var(--border-2);border-radius:var(--r-lg);
  padding:30px 20px;text-align:center;background:rgba(255,255,255,.012);
}
.empty-icon{
  width:46px;height:46px;margin:0 auto 14px;border-radius:14px;
  background:var(--card-2);display:grid;place-items:center;color:var(--text-3);
}
.empty h3{font-size:14px;font-weight:600;color:var(--text-2)}
.empty p{font-size:12px;color:var(--text-3);margin-top:6px;line-height:1.7}
.steps{display:flex;gap:6px;margin-top:18px;text-align:left}
.step{flex:1;background:var(--card);border:1px solid var(--border);border-radius:10px;padding:10px 9px}
.step-n{font-size:10px;font-weight:700;color:var(--brand);font-family:ui-monospace,monospace;margin-bottom:5px}
.step-t{font-size:11px;color:var(--text-2);line-height:1.5}

/* --- 解析中 --- */
.loading-card{background:var(--card);border:1px solid var(--border);border-radius:var(--r-lg);padding:20px}
.spinner{
  width:30px;height:30px;margin:0 auto 14px;border-radius:50%;
  border:2.5px solid var(--card-3);border-top-color:var(--brand);
  animation:spin .7s linear infinite;
}
@keyframes spin{to{transform:rotate(360deg)}}
.loading-card .t{text-align:center;font-size:13.5px;font-weight:600}
.loading-card .s{text-align:center;font-size:11.5px;color:var(--text-3);margin-top:5px}
.sk{margin-top:18px;display:flex;flex-direction:column;gap:9px}
.sk-row{height:11px;border-radius:6px;background:var(--card-2);position:relative;overflow:hidden}
.sk-row::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.055),transparent);
  animation:shim 1.3s infinite;
}
@keyframes shim{from{transform:translateX(-100%)}to{transform:translateX(100%)}}
.sk-row.w60{width:60%} .sk-row.w85{width:85%} .sk-row.w40{width:40%}
.progress-track{height:3px;background:var(--card-2);border-radius:3px;margin-top:18px;overflow:hidden}
.progress-bar{height:100%;width:35%;border-radius:3px;background:var(--brand);animation:slide 1.4s var(--ease) infinite}
@keyframes slide{0%{transform:translateX(-100%)}100%{transform:translateX(340%)}}

/* --- 成功态 --- */
.result-head{display:flex;align-items:center;gap:7px;margin-bottom:10px;padding:0 2px}
.ok-dot{width:6px;height:6px;border-radius:50%;background:var(--ok);box-shadow:0 0 8px var(--ok)}
.result-head span{font-size:11.5px;color:var(--text-3)}
.result-head .t{color:var(--ok);font-weight:600}
.card{background:var(--card);border:1px solid var(--border);border-radius:var(--r-lg);overflow:hidden}

.player{
  position:relative;width:100%;aspect-ratio:9/16;max-height:320px;
  background:linear-gradient(150deg,#2A1F2E 0%,#1A1A26 45%,#16202B 100%);
  display:grid;place-items:center;overflow:hidden;
}
.player video{width:100%;height:100%;object-fit:contain;display:block;background:transparent}
.player-tag{
  position:absolute;top:10px;left:10px;z-index:2;
  font-size:10px;font-weight:600;color:#fff;
  background:rgba(0,0,0,.55);backdrop-filter:blur(6px);
  padding:4px 9px;border-radius:20px;display:flex;align-items:center;gap:4px;
  pointer-events:none;transition:opacity .3s var(--ease);
}
.player-tag .d{width:5px;height:5px;border-radius:50%;background:var(--cyan)}
.player.playing .player-tag{opacity:0}

.meta{padding:14px 15px}
.meta-title{font-size:14px;font-weight:600;line-height:1.55;letter-spacing:-.1px}
.meta-author{display:flex;align-items:center;gap:7px;margin-top:9px}
.avatar{
  width:22px;height:22px;border-radius:50%;flex-shrink:0;
  background:linear-gradient(135deg,#3A3A4A,#25252F);
  display:grid;place-items:center;font-size:10px;color:var(--text-2);font-weight:600;
}
.meta-author span{font-size:12px;color:var(--text-2)}
.chips{display:flex;flex-wrap:wrap;gap:6px;margin-top:12px}
.chip{
  font-size:11px;color:var(--text-2);background:var(--card-2);
  border:1px solid var(--border);padding:3.5px 9px;border-radius:6px;
  font-variant-numeric:tabular-nums;
}
.chip.hl{color:var(--cyan);border-color:rgba(37,244,238,.28);background:rgba(37,244,238,.07)}

.link-box{border-top:1px solid var(--border);padding:11px 15px;background:var(--card-2)}
.link-box .lb-head{
  display:flex;align-items:center;gap:6px;cursor:pointer;user-select:none;
  font-size:11.5px;color:var(--text-3);
}
.link-box .lb-head svg{width:12px;height:12px;transition:.25s var(--ease)}
.link-box.open .lb-head svg{transform:rotate(90deg)}
.link-url{
  display:none;margin-top:10px;font-family:ui-monospace,SFMono-Regular,monospace;
  font-size:10.5px;color:var(--text-2);line-height:1.65;
  background:var(--bg);border:1px solid var(--border);border-radius:8px;
  padding:9px 10px;word-break:break-all;max-height:76px;overflow-y:auto;
}
.link-box.open .link-url{display:block}

.actions{display:flex;flex-direction:column;gap:9px;margin-top:14px}
.actions-row{display:flex;gap:9px}
.actions-row .btn{flex:1}

/* --- 错误态 --- */
.err-card{background:var(--card);border:1px solid var(--border);border-radius:var(--r-lg);padding:26px 20px;text-align:center}
.err-icon{width:52px;height:52px;margin:0 auto 15px;border-radius:16px;display:grid;place-items:center}
.err-icon svg{width:24px;height:24px}
.e-warn{background:rgba(251,191,36,.11);color:var(--warn);border:1px solid rgba(251,191,36,.2)}
.e-err{background:rgba(248,113,113,.11);color:var(--err);border:1px solid rgba(248,113,113,.2)}
.e-info{background:rgba(37,244,238,.10);color:var(--cyan);border:1px solid rgba(37,244,238,.2)}
.err-card h3{font-size:15px;font-weight:600;letter-spacing:-.1px}
.err-card .desc{font-size:12.5px;color:var(--text-2);margin-top:9px;line-height:1.75}
.err-code{
  display:inline-flex;align-items:center;gap:5px;margin-top:14px;
  font-family:ui-monospace,monospace;font-size:10.5px;color:var(--text-3);
  background:var(--card-2);border:1px solid var(--border);
  padding:4px 10px;border-radius:20px;
}
.err-card .advice{
  margin-top:16px;text-align:left;font-size:12px;color:var(--text-2);
  background:var(--card-2);border:1px solid var(--border);
  border-radius:10px;padding:11px 13px;line-height:1.75;
}
.err-card .advice b{color:var(--text);font-weight:600;display:block;margin-bottom:5px;font-size:11.5px}
.err-card .advice code{
  background:var(--bg);padding:1.5px 5px;border-radius:4px;
  font-size:11px;color:var(--cyan);font-family:ui-monospace,monospace;
}
.err-card .btn{margin-top:16px;width:100%}
.err-actions{display:flex;gap:9px;margin-top:16px}
.err-actions .btn{flex:1;margin-top:0}

/* ---------- 页脚 ---------- */
.app-footer{
  padding:0 20px 28px;flex-shrink:0;
  font-size:10.5px;color:var(--text-3);line-height:1.7;text-align:center;
}
.app-footer .sep{height:1px;background:var(--border);margin-bottom:14px}

/* ---------- Toast ---------- */
.toast{
  position:absolute;left:50%;bottom:38px;transform:translate(-50%,16px);
  background:rgba(28,28,38,.96);backdrop-filter:blur(12px);
  border:1px solid var(--border-2);border-radius:12px;
  padding:11px 18px;font-size:12.5px;font-weight:500;
  display:flex;align-items:center;gap:8px;white-space:nowrap;
  opacity:0;pointer-events:none;transition:.28s var(--ease);z-index:60;
  box-shadow:var(--shadow);
}
.toast.show{opacity:1;transform:translate(-50%,0)}
.toast svg{width:14px;height:14px;color:var(--ok);flex-shrink:0}
.toast.err svg{color:var(--err)}

/* ---------- 口令弹层 ---------- */
.modal{
  position:fixed;inset:0;z-index:200;display:grid;place-items:center;
  background:rgba(0,0,0,.7);backdrop-filter:blur(6px);padding:24px;
}
.modal[hidden]{display:none}
.modal-card{
  width:100%;max-width:320px;background:var(--card);border:1px solid var(--border-2);
  border-radius:var(--r-lg);padding:24px;box-shadow:var(--shadow);
}
.modal-card h3{font-size:15px;font-weight:600}
.modal-card p{font-size:12px;color:var(--text-2);margin-top:8px;line-height:1.7}
.modal-card code{background:var(--card-2);padding:1.5px 5px;border-radius:4px;font-size:11px;color:var(--cyan)}
.modal-card input{
  width:100%;margin-top:16px;background:var(--bg);border:1px solid var(--border-2);
  border-radius:10px;padding:11px 13px;color:var(--text);font-size:13px;
  font-family:inherit;outline:0;transition:.2s var(--ease);
}
.modal-card input:focus{border-color:var(--brand);box-shadow:0 0 0 3px rgba(254,44,85,.12)}
.modal-actions{margin-top:14px}

/* ---------- 移动端：全屏 ---------- */
@media (max-width:760px){
  body{padding:0;display:block;background:var(--bg-2)}
  body::before{display:none}
  .phone{
    width:100%;height:100vh;height:100dvh;max-height:none;
    border-radius:0;padding:0;box-shadow:none;
  }
  .screen{border-radius:0;padding-top:env(safe-area-inset-top);padding-bottom:env(safe-area-inset-bottom)}
  .statusbar{display:none}
}