:root{
  --bg:#000;
  --card:rgba(28,28,30,0.55);
  --card-solid:#1c1c1e;
  --blue:#0a84ff;
  --blue-press:#0066cc;
  --green:#30d158;
  --text:#fff;
  --text2:#a1a1a6;
  --text3:#636366;
  --border:rgba(255,255,255,0.10);
  --grad:linear-gradient(135deg,#0a84ff,#0066cc);
  --grad-warm:linear-gradient(135deg,#0a84ff,#5ac8fa);
  --font:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"PingFang SC","Microsoft YaHei",sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box;}
html,body{height:100%;}
body{
  font-family:var(--font);
  background:var(--bg);
  min-height:100vh;
  color:var(--text);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
  position:relative;
}
.bg-orbs{position:fixed;inset:0;z-index:0;overflow:hidden;pointer-events:none;contain:layout paint;}
.bg-orbs span{
  position:absolute;border-radius:50%;
  background:radial-gradient(circle at 35% 35%, currentColor 0%, transparent 70%);
  opacity:.45;
}
.bg-orbs .o1{width:380px;height:380px;left:-80px;top:-60px;color:#0a84ff;}
.bg-orbs .o2{width:320px;height:320px;right:-60px;top:30%;color:#5ac8fa;}
.bg-orbs .o3{width:300px;height:300px;left:30%;bottom:-80px;color:#0a9d6e;opacity:.32;}
@keyframes drift{
  0%{transform:translate(0,0) scale(1);}
  100%{transform:translate(40px,30px) scale(1.12);}
}

.app{position:relative;z-index:1;max-width:520px;margin:0 auto;min-height:100vh;display:flex;flex-direction:column;padding:0 16px 28px;padding-top:max(18px,env(safe-area-inset-top));padding-bottom:max(28px,env(safe-area-inset-bottom));}

/* 顶栏 */
.topbar{display:flex;align-items:center;justify-content:space-between;padding:18px 4px 10px;}
.brand{display:flex;align-items:center;gap:10px;}
.brand-icon{
  width:38px;height:38px;border-radius:11px;background:var(--grad);
  display:flex;align-items:center;justify-content:center;color:#fff;font-weight:800;font-size:18px;
  box-shadow:0 6px 18px rgba(91,140,240,.35);
}
.brand-name{font-weight:700;font-size:16px;letter-spacing:.3px;}
.brand-sub{font-size:11px;color:var(--text2);margin-top:1px;}
.top-actions{display:flex;align-items:center;gap:10px;}
.icon-btn{
  width:40px;height:40px;border-radius:12px;border:1px solid var(--border);
  background:rgba(255,255,255,.05);color:var(--text);cursor:pointer;
  display:flex;align-items:center;justify-content:center;transition:background .15s;
}
.icon-btn:hover{background:rgba(255,255,255,.12);}
.avatar-btn{
  width:40px;height:40px;border-radius:50%;border:1px solid var(--border);
  background:var(--grad);color:#fff;font-weight:700;cursor:pointer;
  display:flex;align-items:center;justify-content:center;font-size:15px;
}
.btn{
  width:100%;padding:14px;border-radius:14px;border:none;font-weight:600;cursor:pointer;
  font-size:15px;font-family:inherit;transition:background .15s,opacity .15s;
  display:flex;align-items:center;justify-content:center;gap:8px;
}
.btn-primary{background:var(--blue);color:#fff;position:relative;overflow:hidden;}
.btn-primary:active{background:var(--blue-press);}
.btn-primary::after{
  content:'';position:absolute;top:-50%;left:-50%;width:200%;height:200%;
  background:radial-gradient(circle, rgba(255,255,255,.35) 0%, transparent 55%);
  pointer-events:none;
}
.btn-outline{background:rgba(255,255,255,.06);color:var(--text);border:1px solid var(--border);}
.btn-outline:active{background:rgba(255,255,255,.14);}
.btn:disabled{opacity:.55;cursor:not-allowed;}

/* 液态玻璃卡片 + 动态高光 */
.glass{
  position:relative;overflow:hidden;
  background:var(--card);
  backdrop-filter:blur(16px) saturate(150%);
  -webkit-backdrop-filter:blur(16px) saturate(150%);
  border:1px solid var(--border);
  border-radius:22px;
  box-shadow:0 18px 50px rgba(0,0,0,.45), inset 0 1px 0 rgba(255,255,255,.10);
}
.glass::before{
  content:'';position:absolute;top:-60%;left:-60%;width:220%;height:220%;
  background:radial-gradient(circle, rgba(255,255,255,.16) 0%, transparent 55%);
  pointer-events:none;z-index:0;
}
@keyframes glass-light{
  0%{transform:translate(-25%,-25%) rotate(0deg);}
  100%{transform:translate(30%,25%) rotate(40deg);}
}
.glass > *{position:relative;z-index:1;}

.hero{margin-top:8px;padding:26px 22px;}
.hero h1{font-size:22px;font-weight:700;letter-spacing:.3px;}
.hero p{color:var(--text2);font-size:13px;margin-top:8px;line-height:1.55;}

/* 上传/拖拽区 */
.dropzone{
  margin-top:16px;padding:24px 16px;border:1.5px dashed var(--border);border-radius:16px;
  background:rgba(255,255,255,.03);text-align:center;cursor:pointer;transition:border-color .15s,background .15s;
}
.dropzone:hover,.dropzone.dragover{border-color:var(--blue);background:rgba(10,132,255,.08);}
.dz-icon{font-size:26px;color:var(--blue);margin-bottom:8px;}
.dz-title{font-size:14px;font-weight:600;}
.dz-hint{font-size:11px;color:var(--text2);margin-top:6px;line-height:1.5;}

/* 已选文件 */
.file-meta{
  margin-top:14px;padding:12px 14px;border-radius:12px;background:rgba(255,255,255,.05);
  border:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;gap:10px;
}
.file-meta .fm-name{font-size:13px;font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.file-meta .fm-size{font-size:11px;color:var(--text2);white-space:nowrap;}
.file-meta .fm-x{background:none;border:none;color:var(--text2);font-size:18px;cursor:pointer;line-height:1;}
.file-meta .fm-x:hover{color:#ffb3c1;}

/* 目标格式选择 */
.target-block{margin-top:16px;}
.target-label{font-size:12px;color:var(--text2);margin-bottom:8px;display:flex;align-items:center;gap:6px;}
.target-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(64px,1fr));gap:8px;}
.target-tabs{display:flex;gap:6px;margin-bottom:12px;flex-wrap:wrap;}
.ttab{padding:6px 14px;border-radius:20px;border:1px solid var(--border);background:rgba(255,255,255,.05);color:var(--text2);font-size:12px;font-weight:600;cursor:pointer;font-family:inherit;transition:all .15s;}
.ttab:hover{border-color:var(--blue);color:var(--text);}
.ttab.active{background:var(--grad);color:#fff;border-color:transparent;box-shadow:0 4px 12px rgba(10,132,255,.3);}
/* ===== 模式切换（文档/音频/视频） ===== */
.mode-tabs{display:flex;gap:8px;justify-content:center;margin:12px 0 2px;flex-wrap:wrap;}
.mtab{padding:8px 18px;border-radius:22px;border:1px solid var(--border);background:rgba(255,255,255,.05);color:var(--text2);font-size:13px;font-weight:700;cursor:pointer;font-family:inherit;transition:all .15s;}
.mtab:hover{border-color:var(--blue);color:var(--text);}
.mtab.active{background:var(--grad);color:#fff;border-color:transparent;box-shadow:0 5px 14px rgba(10,132,255,.32);}
/* ===== 视频剪辑参数 ===== */
.opt-row{display:flex;align-items:center;gap:10px;margin-top:12px;flex-wrap:wrap;}
.opt-label{font-size:12px;color:var(--text2);font-weight:600;flex-shrink:0;min-width:44px;}
.speed-btns{display:flex;gap:6px;flex-wrap:wrap;}
.speed-btns button{padding:7px 16px;border-radius:18px;border:1px solid var(--border);background:rgba(255,255,255,.05);color:var(--text2);font-size:12.5px;font-weight:700;cursor:pointer;font-family:inherit;transition:all .15s;}
.speed-btns button:hover{border-color:var(--blue);color:var(--text);}
.speed-btns button.active{background:var(--grad);color:#fff;border-color:transparent;}
.opt-row input[type=text]{flex:1;min-width:200px;padding:10px 14px;border-radius:12px;border:1px solid var(--border);background:rgba(255,255,255,.07);color:var(--text);font-size:12.5px;outline:none;font-family:inherit;box-sizing:border-box;}
.opt-row input[type=text]:focus{border-color:var(--blue);}
.video-hint{font-size:11px;color:var(--text3);margin-top:10px;line-height:1.6;}
.fmt-btn{
  padding:10px 4px;border-radius:12px;border:1px solid var(--border);background:rgba(255,255,255,.05);
  color:var(--text2);font-size:12px;font-weight:600;font-family:inherit;cursor:pointer;
  display:flex;flex-direction:column;align-items:center;gap:4px;transition:all .15s;text-transform:uppercase;
}
.fmt-btn .fe{font-size:15px;font-weight:800;}
.fmt-btn:hover{border-color:var(--blue);color:var(--text);}
.fmt-btn.active{background:var(--blue);color:#fff;border-color:var(--blue);box-shadow:0 6px 16px rgba(10,132,255,.35);}
.fmt-btn:disabled{opacity:.4;cursor:not-allowed;}

/* 提示横幅（免费次数） */
.notice{
  margin-top:14px;padding:12px 14px;border-radius:14px;font-size:12px;
  background:rgba(10,132,255,.12);border:1px solid rgba(10,132,255,.30);color:#cfe6ff;
  display:flex;align-items:center;gap:8px;
}
.notice.hidden{display:none;}
.notice.warn{background:rgba(255,69,58,.12);border-color:rgba(255,69,58,.30);color:#ffd0cc;}

.actions{margin-top:14px;}

/* 结果 */
.result{
  margin-top:14px;padding:16px;border-radius:16px;background:rgba(48,209,88,.10);
  border:1px solid rgba(48,209,88,.30);display:flex;flex-direction:column;gap:12px;
}
.result .r-head{display:flex;align-items:center;gap:8px;font-size:14px;font-weight:700;color:#bff3cf;}
.result .r-info{font-size:12px;color:var(--text2);}
.result .r-actions{display:flex;gap:10px;}

.chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px;}
.chip{
  font-size:11px;color:var(--text2);background:rgba(255,255,255,.06);
  border:1px solid var(--border);padding:5px 10px;border-radius:20px;
}

/* 联系方式卡片 */
.contact-card{
  margin-top:16px;padding:22px 20px;border-radius:18px;
  display:flex;flex-direction:column;align-items:center;gap:12px;text-align:center;
}
.contact-avatar{
  position:relative;width:56px;height:56px;border-radius:50%;flex-shrink:0;overflow:hidden;
  background:linear-gradient(135deg,#0a84ff,#0066cc);
  box-shadow:0 4px 16px rgba(10,132,255,.25);
  display:flex;align-items:center;justify-content:center;font-weight:800;font-size:22px;color:#fff;
}
.contact-avatar-letter{display:flex;align-items:center;justify-content:center;}
.contact-avatar-img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;border-radius:50%;}
.contact-info{display:flex;flex-direction:column;gap:6px;}
.contact-name{font-size:17px;font-weight:700;color:var(--text);letter-spacing:.3px;}
.contact-bio{font-size:12.5px;color:var(--text2);line-height:1.5;margin-top:2px;}
.contact-line{display:flex;align-items:center;gap:8px;justify-content:center;}
.contact-label{color:var(--text3);font-size:11.5px;}
.contact-val{color:var(--text);font-weight:600;}
.contact-mail{text-decoration:none;}
.contact-links{display:flex;gap:10px;margin-top:10px;justify-content:center;}
.contact-links a{
  display:inline-flex;align-items:center;gap:6px;padding:7px 16px;border-radius:10px;
  font-size:11.5px;font-weight:600;color:var(--text2);
  background:rgba(255,255,255,.06);border:1px solid var(--border);
  text-decoration:none;transition:background .15s,color .15s,border-color .15s;
}
.contact-links a:hover{background:rgba(255,255,255,.12);color:var(--text);}
.contact-links a svg{width:16px;height:16px;opacity:.85;}

.footer{margin-top:auto;padding-top:22px;padding-bottom:max(10px,env(safe-area-inset-bottom));text-align:center;color:var(--text3);font-size:11px;line-height:1.6;}
.footer a{color:var(--text2);text-decoration:none;}

/* Toast */
.toast{
  position:fixed;left:50%;bottom:calc(34px + env(safe-area-inset-bottom));transform:translateX(-50%) translateY(20px);
  background:rgba(30,30,32,.95);border:1px solid var(--border);color:#fff;
  padding:11px 18px;border-radius:14px;font-size:13px;z-index:80;opacity:0;
  transition:opacity .25s,transform .25s;pointer-events:none;max-width:88%;text-align:center;
  backdrop-filter:blur(10px);
}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0);}
.toast.error{border-color:rgba(255,69,58,.5);}

/* 加载动画 */
.overlay{
  position:fixed;inset:0;z-index:50;background:rgba(0,0,0,.55);
  backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);
  display:flex;align-items:center;justify-content:center;padding:20px;
}
.overlay.hidden{display:none;}
.parse-card{
  background:var(--card-solid);border-radius:22px;padding:34px 42px;border:1px solid var(--border);
  box-shadow:0 24px 70px rgba(0,0,0,.6);text-align:center;max-width:320px;
}
.star-think{animation:star-spin 2.4s linear infinite;filter:drop-shadow(0 0 14px rgba(10,132,255,.65));will-change:transform;}
@keyframes star-spin{0%{transform:rotate(0) scale(1);}50%{transform:rotate(180deg) scale(1.12);}100%{transform:rotate(360deg) scale(1);}}
.think-dots{display:flex;justify-content:center;gap:7px;margin-top:18px;}
.think-dots span{width:8px;height:8px;border-radius:50%;background:#0a84ff;animation:think-bounce 1.2s ease-in-out infinite;will-change:transform;}
.think-dots span:nth-child(2){animation-delay:.2s;}
.think-dots span:nth-child(3){animation-delay:.4s;}
@keyframes think-bounce{0%,80%,100%{transform:translateY(0);opacity:.35;}40%{transform:translateY(-9px);opacity:1;}}
.think-text{margin-top:14px;color:#0a84ff;font-size:14px;font-weight:600;letter-spacing:.5px;}

/* 登录弹窗 */
.modal{
  width:100%;max-width:360px;background:var(--card-solid);border-radius:22px;padding:26px 22px;
  border:1px solid var(--border);box-shadow:0 24px 70px rgba(0,0,0,.6);position:relative;
  animation:pop .25s ease;
}
@keyframes pop{from{transform:translateY(14px) scale(.97);opacity:0;}to{transform:none;opacity:1;}}
.modal-close{position:absolute;top:14px;right:16px;background:none;border:none;color:var(--text2);font-size:24px;line-height:1;cursor:pointer;}
.modal .center-brand{display:flex;flex-direction:column;align-items:center;gap:8px;margin-bottom:6px;}
.provider-badge{
  width:58px;height:58px;border-radius:16px;background:linear-gradient(135deg,#0a84ff,#0066cc);
  display:flex;align-items:center;justify-content:center;
}
.modal h2{text-align:center;font-size:18px;font-weight:700;}
.modal .sub2{text-align:center;color:var(--text2);font-size:12.5px;margin-top:8px;line-height:1.5;}
.modal .btn{margin-top:16px;}
.modal .btn-outline{margin-top:10px;}

/* 个人中心弹窗 */
.center-modal{
  width:100%;max-width:380px;background:var(--card-solid);border-radius:22px;padding:26px 22px;
  border:1px solid var(--border);box-shadow:0 24px 70px rgba(0,0,0,.6);position:relative;animation:pop .25s ease;
}
.center-modal .cm-head{display:flex;align-items:center;gap:14px;margin-bottom:6px;}
.cm-avatar{width:56px;height:56px;border-radius:50%;background:var(--grad);display:flex;align-items:center;justify-content:center;font-weight:800;color:#fff;font-size:22px;flex-shrink:0;}
.cm-name{font-size:17px;font-weight:700;}
.cm-id{font-size:12px;color:var(--text2);margin-top:2px;}
.cm-stat{font-size:12px;color:var(--green);margin-top:14px;text-align:center;}

/* 桌面端居中、限制宽度 */
/* ===== 三端布局（对标 vmusic/vplayer）：<768 单列 / 768-1099 平板 / ≥1100 双栏 ===== */
@media (min-width:768px){
  .app{max-width:760px;}
  .contact-card{flex-direction:row;text-align:left;gap:20px;padding:24px 28px;}
  .contact-info{text-align:left;}
  .contact-line{justify-content:flex-start;}
  .contact-links{justify-content:flex-start;}
}
@media (min-width:1100px){
  .app{max-width:1080px;display:grid;grid-template-columns:minmax(0,1fr) 340px;gap:20px;align-items:start;}
  .topbar{grid-column:1/-1;}
  .main-col{min-width:0;}
  .side-col{display:block;}
  .contact-card{flex-direction:row;text-align:left;gap:16px;padding:22px;}
  .contact-info{text-align:left;}
  .contact-links{justify-content:flex-start;}
}
.side-col{display:block;}
.side-col .glass{margin-bottom:16px;}

/* ===== OAuth 授权中心连接状态（呼吸灯，底部，对标 vplayer/vmusic） ===== */
.oauth-status{display:flex;align-items:center;justify-content:center;gap:7px;width:fit-content;margin:0 auto 12px;padding:6px 12px;border-radius:999px;background:rgba(255,255,255,.05);border:1px solid var(--border);font-size:11.5px;color:var(--text2);grid-column:1/-1;}

/* ===== 访问防护与限流（独立卡片，对标 vplayer） ===== */
.shield-card{display:flex;align-items:center;gap:12px;text-align:left;margin-bottom:16px;padding:14px 16px;border-radius:14px;background:rgba(10,132,255,.12);border:1px solid rgba(10,132,255,.32);}
.shield-card svg{width:26px;height:26px;flex-shrink:0;filter:drop-shadow(0 2px 6px rgba(10,132,255,.4));}
.shield-card span{font-size:13px;font-weight:600;line-height:1.45;color:var(--text);}
.shield-card strong{color:var(--blue);font-weight:700;}

/* ===== 开源协议与声明（对标 vmusic about-card） ===== */
.about-card{padding:18px 20px;margin-bottom:16px;}
.about-card h3{font-size:14px;font-weight:700;margin-bottom:10px;}
.about-text{font-size:12px;color:var(--text2);line-height:1.7;}
.about-text strong{color:var(--text);}
.about-list{margin:10px 0;padding-left:18px;}
.about-list li{font-size:11.5px;color:var(--text2);line-height:1.7;margin-bottom:4px;}
.about-list a{color:var(--blue);text-decoration:none;}
.about-list a:hover{text-decoration:underline;}
.about-note{margin-top:8px;font-size:11px;color:var(--text3);line-height:1.7;border-top:1px solid var(--border);padding-top:10px;}
.oauth-dot{width:8px;height:8px;border-radius:50%;background:#ffc777;box-shadow:0 0 0 0 rgba(255,167,38,.55);animation:oauth-breathe 1.6s ease-in-out infinite;}
.oauth-status[data-state="connected"]{color:#7ee0a0;border-color:rgba(40,167,69,.35);background:rgba(40,167,69,.08);}
.oauth-status[data-state="connected"] .oauth-dot{background:#28a745;box-shadow:0 0 0 0 rgba(40,167,69,.55);}
.oauth-status[data-state="disconnected"]{color:#ff8a96;border-color:rgba(255,90,110,.35);background:rgba(255,90,110,.08);}
.oauth-status[data-state="disconnected"] .oauth-dot{background:#ff5a6e;box-shadow:none;animation:none;}

/* ===== 视频剪辑分段（vplayer 风格：片段行 + 自动均分） ===== */
.seg-total{font-size:12px;color:var(--text2);margin:12px 0 8px;text-align:center;}
.seg-total b{color:var(--text);font-weight:700;}
.auto-segs{display:flex;align-items:center;gap:8px;margin-bottom:10px;flex-wrap:wrap;}
.btn-ghost{border:1px dashed var(--border);background:transparent;color:var(--text2);padding:8px 14px;border-radius:11px;font-size:12px;cursor:pointer;font-family:inherit;transition:border-color .15s,color .15s;}
.btn-ghost:hover{border-color:var(--blue);color:var(--text);}
.btn-ghost:disabled{opacity:.4;cursor:not-allowed;}
.seg-list{display:flex;flex-direction:column;gap:8px;margin-bottom:10px;}
.seg-row{display:flex;align-items:center;gap:8px;background:rgba(255,255,255,.05);border:1px solid var(--border);border-radius:12px;padding:8px 10px;}
.seg-no{flex:0 0 auto;min-width:44px;font-size:11px;font-weight:600;color:var(--blue);text-align:center;}
.seg-row input{flex:1;min-width:0;padding:8px 10px;border-radius:10px;border:1px solid var(--border);background:rgba(255,255,255,.06);color:var(--text);font-size:13px;outline:none;font-family:inherit;text-align:center;box-sizing:border-box;}
.seg-row input:focus{border-color:var(--blue);}
.seg-dash{color:var(--text2);font-size:13px;flex-shrink:0;}
.seg-del{flex:0 0 auto;border:none;background:none;color:var(--text2);font-size:18px;line-height:1;cursor:pointer;padding:0 4px;}
.seg-del:hover{color:#ffb3c1;}
.seg-actions{display:flex;align-items:center;gap:10px;margin-bottom:4px;flex-wrap:wrap;}
.seg-hint{font-size:11px;color:var(--text2);}
:root[data-theme="light"] .seg-row{background:rgba(0,0,0,.03);}
:root[data-theme="light"] .seg-row input{background:rgba(0,0,0,.03);color:#1d1d1f;}
@media (max-width:420px){
  .seg-no{min-width:36px;font-size:10px;}
  .seg-row{gap:5px;padding:7px 8px;}
  .seg-row input{padding:8px 6px;font-size:12px;}
  .auto-segs .btn-ghost{padding:7px 11px;font-size:11.5px;}
}

/* ===== 文字溢出修复（三端） ===== */
.result .r-info{word-break:break-all;overflow-wrap:anywhere;line-height:1.6;}
.recent-clear{flex-shrink:0;white-space:nowrap;}
.oauth-text{display:inline;text-align:center;text-wrap:balance;}
.file-meta .fm-name{word-break:break-all;white-space:normal;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.ri-name{word-break:break-all;white-space:normal;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.oauth-status[data-state="checking"]{color:#ffc777;border-color:rgba(255,167,38,.30);background:rgba(255,167,38,.07);}
@keyframes oauth-breathe{0%,100%{box-shadow:0 0 0 0 rgba(255,167,38,.4);}50%{box-shadow:0 0 0 5px rgba(255,167,38,0);}}
/* 浅色模式下呼吸灯深色文字（深绿/深红/深橙，保证可见） */
:root[data-theme="light"] .oauth-status{color:#555;border-color:rgba(0,0,0,.14);background:rgba(0,0,0,.04);}
:root[data-theme="light"] .oauth-status[data-state="connected"]{color:#1a7f37;border-color:rgba(40,167,69,.45);background:rgba(40,167,69,.10);}
:root[data-theme="light"] .oauth-status[data-state="disconnected"]{color:#c62828;border-color:rgba(255,90,110,.40);background:rgba(255,90,110,.08);}
:root[data-theme="light"] .oauth-status[data-state="checking"]{color:#b26a00;border-color:rgba(255,167,38,.45);background:rgba(255,167,38,.10);}

/* ===== 使用前须知弹窗（对标 vplayer/vmusic） ===== */
.dm-overlay{position:fixed;inset:0;z-index:9999;display:flex;align-items:center;justify-content:center;padding:20px;background:rgba(0,0,0,.78);transition:opacity .25s;}
.dm-card{width:100%;max-width:340px;max-height:calc(100vh - 110px);border-radius:24px;background:var(--card-solid);border:1px solid var(--border);box-shadow:0 20px 60px rgba(0,0,0,.55);display:flex;flex-direction:column;overflow:hidden;}
.dm-header{text-align:center;padding:20px 20px 8px;}
.dm-logo{width:56px;height:56px;display:block;margin:0 auto 8px;filter:drop-shadow(0 6px 18px rgba(10,132,255,.35));}
.dm-title{font-size:19px;font-weight:700;letter-spacing:.5px;}
.dm-body{padding:12px 20px 8px;font-size:13px;line-height:1.75;color:var(--text2);flex:1;overflow-y:auto;-webkit-overflow-scrolling:touch;}
.dm-body b{color:var(--text);}
.dm-actions{padding:14px 20px 20px;display:flex;gap:10px;}
.dm-btn{flex:1;padding:11px;border-radius:14px;border:none;font-weight:700;font-size:14px;cursor:pointer;font-family:inherit;background:var(--card-2);color:var(--text);}
.dm-btn-primary{background:var(--grad);color:#fff;}
.dm-btn:disabled{opacity:.5;cursor:not-allowed;}

/* ===== 开源协议卡片（对标 vplayer） ===== */
.license-card{margin-top:16px;padding:16px 18px;border-radius:16px;}
.license-title{font-size:13px;font-weight:700;color:var(--text);display:flex;align-items:center;gap:7px;margin-bottom:12px;}
.license-title svg{width:15px;height:15px;color:var(--blue);opacity:.8;}
.license-item{display:flex;align-items:flex-start;gap:9px;text-align:left;font-size:11.5px;color:var(--text2);line-height:1.5;margin-bottom:8px;}
.license-item:last-child{margin-bottom:0;}
.license-item .lic-dot{flex-shrink:0;width:4px;height:4px;border-radius:50%;background:var(--blue);margin-top:6px;}
.license-item b{color:var(--text);font-weight:600;}

/* 双栏时 footer 跨整行 */
@media (min-width:1100px){
  .footer{grid-column:1/-1;}
}

/* 不可用目标格式（当前节点不支持） */
.fmt-btn.disabled{opacity:.38;cursor:not-allowed;border-style:dashed;filter:grayscale(.4);}
.fmt-btn.disabled:hover{border-color:var(--border);color:var(--text2);box-shadow:none;}

/* 节点能力提示 */
.cap-note{
  margin:14px auto 0;max-width:560px;font-size:12px;color:var(--text2);
  background:rgba(255,255,255,.06);border:1px solid var(--border);
  border-radius:12px;padding:9px 14px;text-align:center;line-height:1.5;
  backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);
}

/* 转换进度条（rAF transform 平滑，GPU 合成） */
.progress{margin-top:18px;height:6px;border-radius:6px;background:rgba(255,255,255,.14);overflow:hidden;width:100%;}
.progress-bar{height:100%;width:100%;background:linear-gradient(90deg,#0a84ff,#5ac8fa);transform:scaleX(0);transform-origin:left center;will-change:transform;}

/* 最近转换 */
.recent-card{margin-top:16px;padding:18px 20px;border-radius:18px;}
.recent-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:10px;}
.recent-title{font-size:14px;font-weight:700;}
.recent-clear{background:none;border:none;color:var(--text2);font-size:12px;cursor:pointer;font-family:inherit;}
.recent-clear:hover{color:var(--text);}
.recent-list{display:flex;flex-direction:row;gap:10px;overflow-x:auto;-webkit-overflow-scrolling:touch;padding:4px 2px 12px;scrollbar-width:thin;}
.recent-list::-webkit-scrollbar{height:4px;}
.recent-list::-webkit-scrollbar-thumb{background:rgba(128,128,128,.4);border-radius:99px;}
.recent-item{display:flex;flex-direction:column;justify-content:space-between;gap:8px;flex:0 0 auto;width:200px;padding:12px;border-radius:14px;background:rgba(255,255,255,.05);border:1px solid var(--border);}
.recent-item:hover{border-color:rgba(10,132,255,.3);}
.ri-main{min-width:0;}
.ri-name{font-size:13px;font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.ri-sub{font-size:11px;color:var(--text2);margin-top:3px;word-break:break-all;}
.ri-acts{display:flex;gap:6px;flex-shrink:0;}
.ri-btn{font-size:11px;font-weight:600;text-decoration:none;color:var(--text);background:rgba(255,255,255,.08);border:1px solid var(--border);padding:6px 10px;border-radius:9px;cursor:pointer;font-family:inherit;transition:background .15s;}
.ri-btn:hover{background:rgba(255,255,255,.16);}
.ri-btn:active{background:rgba(255,255,255,.22);}

/* 批量队列提示 */
.batch-tip{margin-top:10px;font-size:11px;color:var(--text2);text-align:center;display:none;}

/* 浅色主题（记忆于 localStorage） */
:root[data-theme="light"]{
  --bg:#eef1f6;
  --card:rgba(255,255,255,0.72);
  --card-solid:#ffffff;
  --text:#1c1c1e;
  --text2:#5b5b62;
  --text3:#9a9aa2;
  --border:rgba(0,0,0,0.10);
}
/* 浅色模式修正：硬编码深色专用色在浅色下不可见 */
:root[data-theme="light"] .notice{color:#0a5bc4;background:rgba(10,132,255,.10);border-color:rgba(10,132,255,.35);}
:root[data-theme="light"] .notice svg{stroke:#0a84ff;}
:root[data-theme="light"] .notice.warn{color:#c62828;background:rgba(255,69,58,.08);border-color:rgba(255,69,58,.35);}
:root[data-theme="light"] .target-label svg{stroke:#0a84ff;}
:root[data-theme="light"] .file-meta .fm-x:hover{color:#e0245e;}

/* 尊重「减少动态效果」偏好：停用非必要动画 */
@media (prefers-reduced-motion: reduce){
  *,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important;scroll-behavior:auto!important;}
  .bg-orbs span{animation:none;}
  .glass::before,.btn-primary::after{animation:none;opacity:0;}
  .star-think,.think-dots span{animation:none;}
}