/* ============================================================
   小說閱讀工具 · 全站樣式（site.css）
   風格：套用 012.tw 網址導航的「深色霓虹 / 玻璃擬態」主題
        （同一組設計 token、頂欄、卡片、膠囊、按鈕、頁尾）。
   類名沿用 .nv-*，閱讀區本身由 reader.css 的 --rd-* 控制。
   ============================================================ */

:root{
  --bg:#04070f;
  --bg2:#0a1120;
  --panel:rgba(12,22,44,.72);
  --panel2:rgba(17,30,58,.6);
  --line:rgba(56,189,248,.22);
  --line2:rgba(167,139,250,.25);
  --text:#e6f1ff;
  --muted:#8fa6c8;
  --brand:#22d3ee;
  --brand2:#a78bfa;
  --mag:#f472b6;
  --lime:#a3e635;
  --danger:#fb7185;
  --ok:#34d399;
  --grad:linear-gradient(135deg,#22d3ee,#a78bfa);
  --radius:16px;
  --glow:0 0 0 1px rgba(34,211,238,.14),0 10px 34px rgba(2,6,23,.55),0 0 24px rgba(34,211,238,.12);
  --mono:ui-monospace,SFMono-Regular,"Cascadia Code",Consolas,"Courier New",monospace;
  --sans:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang TC","Microsoft JhengHei","Noto Sans TC",Roboto,Arial,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;color:var(--text);
  background:
    radial-gradient(1200px 600px at 85% -10%,rgba(34,211,238,.10),transparent 60%),
    radial-gradient(1000px 600px at -10% 20%,rgba(167,139,250,.10),transparent 55%),
    linear-gradient(180deg,var(--bg),var(--bg2) 60%,#05070f);
  font:15px/1.75 var(--sans);-webkit-font-smoothing:antialiased;min-height:100vh}
img{border:0;max-width:100%}
a{color:#7dd3fc;text-decoration:none}
a:hover{color:#fff;text-shadow:0 0 8px rgba(34,211,238,.7)}
h1,h2,h3{line-height:1.35;margin:0 0 .5em;color:#eaf6ff}
h1{font-size:clamp(22px,3.2vw,34px);letter-spacing:.5px}
h2{font-size:19px}
h3{font-size:16px}
code,pre{font-family:var(--mono)}
::selection{background:rgba(34,211,238,.35)}

.nv-wrap{max-width:1200px;margin:0 auto;padding:0 16px}
.nv-main{min-height:60vh;padding-bottom:40px}

/* ---------- 頂欄 ---------- */
.nv-top{position:sticky;top:0;z-index:200;
  background:rgba(5,10,22,.72);backdrop-filter:blur(16px) saturate(140%);-webkit-backdrop-filter:blur(16px) saturate(140%);
  border-bottom:1px solid var(--line);box-shadow:0 6px 24px rgba(0,0,0,.45)}
.nv-top-in{display:flex;align-items:center;gap:16px;min-height:60px;padding:6px 0;flex-wrap:wrap;row-gap:6px}
.nv-logo{display:flex;align-items:center;gap:10px;font-size:20px;font-weight:800;letter-spacing:.5px;color:#fff;flex:none;white-space:nowrap}
.nv-logo:hover{color:#fff;text-shadow:none}
.nv-logo .dot{width:36px;height:36px;border-radius:11px;background:var(--grad);color:#03121c;display:flex;
  align-items:center;justify-content:center;font-size:17px;
  box-shadow:0 0 18px rgba(34,211,238,.6),inset 0 0 8px rgba(255,255,255,.35)}
.nv-logo em{font-style:normal;background:linear-gradient(90deg,#67e8f9,#c4b5fd);-webkit-background-clip:text;
  background-clip:text;color:transparent;filter:drop-shadow(0 0 8px rgba(34,211,238,.35))}
.nv-nav{display:flex;gap:4px;margin-left:auto;flex-wrap:wrap;justify-content:flex-end}
.nv-nav a{display:inline-flex;align-items:center;gap:6px;padding:8px 15px;border-radius:999px;color:#c7d9f5;
  font-weight:600;font-size:14px;position:relative;transition:.25s}
.nv-nav a::before{content:"";position:absolute;inset:0;border-radius:999px;background:var(--grad);opacity:0;transition:.25s;z-index:-1}
.nv-nav a:hover,.nv-nav a.on{color:#02121d;text-shadow:none}
.nv-nav a:hover::before,.nv-nav a.on::before{opacity:1;box-shadow:0 0 22px rgba(34,211,238,.5)}

/* ---------- 導覽收納：更多工具（桌機 hover／鍵盤 focus 展開，手機直接展開） ----------
   與 012.tw 工具頁的 .nh-more 同一套行為，讓小說站和導航站其他工具互相關聯。 */
.nv-more{position:relative;display:inline-flex;align-items:center}
.nv-more-btn{display:inline-flex;align-items:center;gap:6px;padding:8px 15px;border:0;border-radius:999px;background:none;
  color:#c7d9f5;font:inherit;font-size:14px;font-weight:600;cursor:pointer;position:relative;transition:.25s}
.nv-more-btn::before{content:"";position:absolute;inset:0;border-radius:999px;background:var(--grad);opacity:0;transition:.25s;z-index:-1}
.nv-more-btn:hover,.nv-more:focus-within .nv-more-btn{color:#02121d;text-shadow:none}
.nv-more-btn:hover::before,.nv-more:focus-within .nv-more-btn::before{opacity:1;box-shadow:0 0 22px rgba(34,211,238,.5)}
.nv-more-btn i{font-style:normal;font-size:10px;line-height:1;opacity:.85;transition:transform .25s}
.nv-more:hover .nv-more-btn i,.nv-more:focus-within .nv-more-btn i{transform:rotate(180deg)}
.nv-more-menu{position:absolute;top:calc(100% + 10px);right:0;z-index:700;display:none;flex-direction:column;gap:2px;
  min-width:190px;padding:8px;background:rgba(8,15,32,.98);border:1px solid var(--line);border-radius:14px;
  box-shadow:0 18px 44px rgba(0,0,0,.55),0 0 24px rgba(34,211,238,.15);
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px)}
.nv-more-menu::before{content:"";position:absolute;left:0;right:0;top:-12px;height:12px}  /* 滑過空隙時不中斷 hover */
.nv-more:hover .nv-more-menu,.nv-more:focus-within .nv-more-menu{display:flex;animation:nvmore .18s ease}
@keyframes nvmore{from{opacity:0;transform:translateY(-6px)}to{opacity:1;transform:none}}
.nv-nav .nv-more-menu a,.nv-nav .nv-more-menu a:hover,.nv-nav .nv-more-menu a.on{
  display:block;padding:8px 12px;border-radius:9px;font-size:13.5px;font-weight:600;white-space:nowrap;color:#c7d9f5;text-align:left}
.nv-nav .nv-more-menu a::before{display:none}
.nv-nav .nv-more-menu a:hover{background:rgba(34,211,238,.14);color:#fff;text-shadow:none}
/* 導覽有 6 項：中等寬度先縮小間距，避免擠到 logo 或換行 */
@media(max-width:1240px) and (min-width:901px){
  .nv-top-in{gap:10px}
  .nv-nav a,.nv-more-btn{padding:7px 11px;font-size:13px;gap:4px}
}
.nv-nav-toggle,.nv-burger{display:none}
@media(max-width:900px){
  .nv-burger{display:inline-flex;margin-left:auto;width:42px;height:42px;border:1px solid var(--line);border-radius:12px;
    background:rgba(12,22,44,.8);cursor:pointer;flex-direction:column;align-items:center;justify-content:center;gap:4px}
  .nv-burger span{width:18px;height:2px;background:#7dd3fc;border-radius:2px;box-shadow:0 0 6px rgba(34,211,238,.6)}
  .nv-nav{position:absolute;top:calc(100% + 6px);left:8px;right:8px;flex-basis:auto;display:none;flex-direction:column;
    gap:4px;padding:10px;background:rgba(8,15,32,.97);border:1px solid var(--line);border-radius:16px;
    box-shadow:0 0 30px rgba(34,211,238,.2);backdrop-filter:blur(12px)}
  .nv-nav-toggle:checked ~ .nv-nav{display:flex}
  .nv-nav a{justify-content:center;border-radius:10px}
  .nv-top-in{position:relative}
  /* 手機：更多工具變成整行按鈕，清單直接展開（觸控沒有 hover） */
  .nv-more{display:block;width:100%;position:static}
  .nv-more-btn{display:flex;width:100%;justify-content:center;padding:8px 12px;border-radius:10px;
    background:rgba(34,211,238,.1);border:1px solid rgba(34,211,238,.28);color:#7dd3fc;font-size:13px}
  .nv-more-btn i{display:none}
  .nv-nav .nv-more-menu{position:static;display:flex;min-width:0;margin-top:6px;padding:6px;border-radius:12px;
    background:rgba(5,10,22,.6);box-shadow:none;backdrop-filter:none;-webkit-backdrop-filter:none}
  .nv-nav .nv-more-menu::before{display:none}
  .nv-nav .nv-more-menu a{padding:8px 10px;font-size:13px}
}

/* ---------- 麵包屑 / 頁首 ---------- */
.nv-crumb{padding:14px 16px 0;font-size:13px;color:#5c7298;display:flex;gap:8px;align-items:center}
.nv-crumb a{color:#7f9cc9}
.nv-crumb b{color:#9bd4f5;font-weight:600}
.nv-page-head{padding:20px 0 6px}
.nv-page-head h1{margin:0;background:linear-gradient(90deg,#fff,#a5f3fc 40%,#c4b5fd 80%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
  filter:drop-shadow(0 0 14px rgba(34,211,238,.35))}
.nv-lead{color:#b9cbe9;margin:.4em 0 0;font-size:14.5px;opacity:.92}

/* ---------- 卡片 ---------- */
.nv-card{position:relative;background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);
  padding:20px;margin:16px 0;backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  overflow:hidden;box-shadow:var(--glow)}
.nv-card::before{content:"";position:absolute;top:0;left:0;right:0;height:2px;opacity:.7;
  background:linear-gradient(90deg,transparent,rgba(34,211,238,.9),rgba(167,139,250,.9),transparent)}
.nv-card h2{display:flex;align-items:center;gap:8px;margin-bottom:12px}
.nv-card h2::before{content:"";width:5px;height:20px;border-radius:4px;background:var(--grad);
  box-shadow:0 0 10px rgba(34,211,238,.8);flex:none}
.nv-grid{display:grid;gap:16px;grid-template-columns:repeat(auto-fill,minmax(250px,1fr))}
.nv-grid-3{display:grid;gap:14px;grid-template-columns:repeat(auto-fill,minmax(215px,1fr))}
.nv-two{display:grid;gap:16px;grid-template-columns:1fr}
@media(min-width:900px){.nv-two{grid-template-columns:1fr 1fr}}

/* 首頁 hero */
.nv-hero{padding:30px 0 24px;position:relative;z-index:30;color:#fff}
.nv-hero::before{content:"";position:absolute;inset:0;pointer-events:none;
  background:
    linear-gradient(rgba(34,211,238,.05) 1px,transparent 1px) 0 0/36px 36px,
    linear-gradient(90deg,rgba(34,211,238,.05) 1px,transparent 1px) 0 0/36px 36px,
    radial-gradient(700px 300px at 80% 0%,rgba(34,211,238,.14),transparent 65%),
    radial-gradient(600px 300px at 0% 40%,rgba(167,139,250,.13),transparent 60%)}
.nv-hero-in{max-width:860px;margin:0 auto;padding:0 16px;text-align:center;position:relative;z-index:2}
.nv-hero h1{margin:0 0 10px;font-size:clamp(24px,4vw,40px);font-weight:900;letter-spacing:1.5px;
  background:linear-gradient(90deg,#fff,#a5f3fc 40%,#c4b5fd 80%);-webkit-background-clip:text;background-clip:text;
  color:transparent;filter:drop-shadow(0 0 14px rgba(34,211,238,.35))}
.nv-hero p{color:#b9cbe9;margin:0 auto 22px;max-width:660px;font-size:15px}
.nv-cta{display:flex;gap:10px;justify-content:center;flex-wrap:wrap}
.nv-sec-h{display:flex;align-items:center;gap:12px;margin:28px 0 14px}
.nv-sec-h .tx{font-weight:800;font-size:17px;color:#eaf6ff}
.nv-sec-h .ln{flex:1;height:1px;background:linear-gradient(90deg,var(--line),transparent)}

/* 工具卡（同 .cat-card 質感） */
.nv-tool{display:flex;gap:12px;align-items:flex-start;position:relative;background:var(--panel);
  border:1px solid var(--line);border-radius:var(--radius);padding:16px;color:inherit;overflow:hidden;
  backdrop-filter:blur(10px);transition:.3s;box-shadow:0 6px 22px rgba(2,6,23,.4)}
.nv-tool::after{content:"";position:absolute;inset:0;border-radius:inherit;padding:1px;opacity:0;transition:.3s;
  background:var(--grad);-webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);
  -webkit-mask-composite:xor;mask-composite:exclude}
.nv-tool:hover{text-decoration:none;color:inherit;transform:translateY(-3px);
  box-shadow:0 14px 34px rgba(2,6,23,.6),0 0 22px rgba(34,211,238,.22)}
.nv-tool:hover::after{opacity:.9}
.nv-tool .ic{flex:none;width:42px;height:42px;border-radius:12px;background:rgba(34,211,238,.12);
  border:1px solid var(--line);display:flex;align-items:center;justify-content:center;font-size:20px}
.nv-tool b{display:block;font-size:15.5px;color:#eaf6ff}
.nv-tool span{display:block;color:var(--muted);font-size:13px;margin-top:3px}

/* ---------- 表單 ---------- */
label{display:block;font-size:13px;color:#9fb9e0;margin:0 0 5px;font-weight:600}
input[type=text],input[type=number],input[type=url],select,textarea{
  width:100%;padding:10px 12px;border:1px solid var(--line);border-radius:10px;
  background:rgba(5,10,22,.7);color:var(--text);font:inherit;font-size:15px;outline:none;transition:.25s}
input::placeholder,textarea::placeholder{color:#5c7298}
input:focus,select:focus,textarea:focus{border-color:var(--brand);box-shadow:0 0 0 3px rgba(34,211,238,.15)}
textarea{min-height:170px;resize:vertical;line-height:1.8}
.fld{margin:0 0 14px}
.fld-row{display:flex;gap:10px;flex-wrap:wrap;align-items:flex-end}
.fld-row>.fld{flex:1;min-width:150px;margin:0}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chip{display:inline-flex;align-items:center;gap:6px;border:1px solid var(--line);background:rgba(10,18,38,.55);
  border-radius:999px;padding:7px 14px;font-size:13px;font-weight:600;color:#bfd2f0;cursor:pointer;transition:.25s}
.chip:hover{background:var(--grad);color:#02121c;border-color:transparent;transform:translateY(-2px);box-shadow:0 0 16px rgba(34,211,238,.45)}
.chip.on{background:var(--grad);color:#02121c;border-color:transparent;box-shadow:0 0 16px rgba(34,211,238,.45)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:7px;padding:10px 18px;border-radius:999px;
  border:1px solid transparent;background:var(--grad);color:#02121c;font:inherit;font-weight:800;cursor:pointer;transition:.25s}
.btn:hover{color:#02121c;text-shadow:none;transform:translateY(-2px);filter:brightness(1.1);box-shadow:0 0 20px rgba(34,211,238,.45)}
.btn.ghost{background:rgba(12,22,44,.7);color:#b9d7ff;border-color:var(--line)}
.btn.ghost:hover{color:#fff;border-color:var(--brand);background:rgba(12,22,44,.9)}
.btn.big{padding:12px 24px;font-size:15.5px}
.btn.sm{padding:7px 14px;font-size:13.5px}
.btn:disabled{opacity:.45;cursor:not-allowed;transform:none;filter:none}
.btns{display:flex;gap:9px;flex-wrap:wrap}

/* 上傳區 */
.nv-drop{border:2px dashed rgba(56,189,248,.35);border-radius:var(--radius);background:rgba(10,18,38,.4);
  padding:30px 18px;text-align:center;transition:.25s;cursor:pointer}
.nv-drop:hover{border-color:var(--brand);box-shadow:0 0 22px rgba(34,211,238,.25)}
.nv-drop.over{border-color:var(--brand);background:rgba(34,211,238,.1)}
.nv-drop .ic{font-size:30px}
.nv-drop b{display:block;margin:6px 0 2px;color:#eaf6ff}
.nv-drop span{color:var(--muted);font-size:13px}

/* 結果 / 統計 */
.result{background:rgba(5,10,22,.5);border:1px solid var(--line);border-radius:12px;padding:14px 16px;margin-top:14px}
.stat-grid{display:grid;gap:10px;grid-template-columns:repeat(auto-fill,minmax(150px,1fr))}
.stat{background:var(--panel2);border:1px solid var(--line);border-radius:11px;padding:11px 13px}
.stat b{display:block;font-size:21px;font-variant-numeric:tabular-nums;color:#a5f3fc;font-family:var(--mono)}
.stat span{font-size:12.5px;color:var(--muted)}
.note{font-size:13px;color:var(--muted)}
.hint{font-size:12.5px;color:#5c7298}
.ok-box{border:1px solid rgba(52,211,153,.4);background:rgba(52,211,153,.1);color:#a7f3d0;
  border-radius:11px;padding:10px 14px;margin:12px 0;font-size:14px}
.err-box{border:1px solid rgba(251,113,133,.45);background:rgba(251,113,133,.1);color:#fecdd3;
  border-radius:11px;padding:10px 14px;margin:12px 0;font-size:14px}
hr.sep{border:0;border-top:1px solid var(--line);margin:18px 0}

/* FAQ */
.nv-faq details{border-bottom:1px solid var(--line);padding:10px 2px}
.nv-faq details:last-child{border-bottom:0}
.nv-faq summary{cursor:pointer;font-weight:700;font-size:14.5px;color:#cfe4ff;list-style:none}
.nv-faq summary::-webkit-details-marker{display:none}
.nv-faq summary::before{content:"▸ ";color:var(--brand);font-weight:900}
.nv-faq details[open] summary::before{content:"▾ "}
.nv-faq .faq-a{color:#9fb9e0;padding:8px 2px 2px 16px;font-size:14px}

/* ---------- 頁尾 ---------- */
.nv-foot{margin-top:46px;background:rgba(3,7,16,.9);border-top:1px solid var(--line);color:#7f9cc9;font-size:13px}
.nv-foot-in{display:grid;gap:20px;grid-template-columns:1fr;padding:26px 16px 0}
@media(min-width:760px){.nv-foot-in{grid-template-columns:2fr 1fr 1fr}}
.nv-foot b{color:#eaf6ff;display:block;margin-bottom:6px}
.nv-foot a{color:#9bd4f5;display:block;padding:2px 0}
.nv-foot a:hover{color:#fff;text-shadow:0 0 8px rgba(34,211,238,.8)}
.nv-foot p{margin:0;line-height:1.8}
.nv-foot-copy{border-top:1px solid var(--line);margin-top:20px;padding:12px 16px;color:#5c7298;font-size:12.5px}

/* 進度條 */
.bar{height:8px;border-radius:999px;background:rgba(56,189,248,.12);overflow:hidden}
.bar>i{display:block;height:100%;background:var(--grad);box-shadow:0 0 12px rgba(34,211,238,.5)}
.hidden{display:none!important}