/* ============================================================
   混合式 AI 獲客站 — 設計系統
   類別契約（全站共用，calc-ui.js / chat.js 都只能用這些）：
   chat widget: #chat-launcher #chat-panel .chat-head .chat-log
                .chat-msg .chat-bot .chat-user .chat-bubble
                .chat-cta .chat-form .chat-input-row
   ============================================================ */

:root{
  --navy-900:#0b1220; --navy-800:#111c2e; --navy-700:#1b2a41; --navy-600:#28394f;
  --ink:#15202f; --ink-2:#3d4c60; --ink-3:#6b7a8f;
  --line:#dde3ea; --line-2:#eef2f6;
  --paper:#ffffff; --paper-2:#f6f8fb; --paper-3:#eef3f8;
  --accent:#0f6f6c; --accent-2:#149e9a; --accent-soft:#e3f2f1;
  --amber:#b4690e; --amber-soft:#fdf1e3;
  --red:#a52d2d;   --red-soft:#fbeaea;
  --green:#1f6b3a; --green-soft:#e8f3ec;
  --radius:10px; --radius-sm:6px;
  --shadow-1:0 1px 2px rgba(11,18,32,.06), 0 1px 1px rgba(11,18,32,.04);
  --shadow-2:0 8px 24px rgba(11,18,32,.10), 0 2px 6px rgba(11,18,32,.06);
  --maxw:1140px;
  --sans:"Noto Sans TC","PingFang TC","Microsoft JhengHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --mono:"JetBrains Mono","SF Mono",Consolas,"Courier New",monospace;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{
  margin:0;font-family:var(--sans);color:var(--ink);background:var(--paper);
  line-height:1.7;font-size:16.5px;letter-spacing:.01em;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--accent);text-decoration-thickness:1px;text-underline-offset:2px}
a:hover{color:var(--accent-2)}
h1,h2,h3,h4{line-height:1.3;margin:0 0 .5em;font-weight:700;letter-spacing:-.01em}
h1{font-size:clamp(1.9rem,4.4vw,3rem)}
h2{font-size:clamp(1.45rem,2.9vw,2.05rem)}
h3{font-size:1.18rem}
h4{font-size:1rem}
p{margin:0 0 1em}
ul,ol{margin:0 0 1em;padding-left:1.3em}
li{margin:.35em 0}
small{font-size:.85rem;color:var(--ink-3)}
code,kbd{font-family:var(--mono);font-size:.9em;background:var(--paper-3);padding:.1em .35em;border-radius:4px}

.wrap{max-width:var(--maxw);margin:0 auto;padding:0 22px}
.section{padding:64px 0;border-bottom:1px solid var(--line-2)}
.section--tight{padding:40px 0}
.section--alt{background:var(--paper-2)}
.section--navy{background:var(--navy-900);color:#e9eef5;border-bottom:none}
.section--navy h2,.section--navy h3{color:#fff}
.section--navy a{color:#7fd4d0}
.eyebrow{
  display:inline-block;font-size:.78rem;font-weight:700;letter-spacing:.14em;
  text-transform:uppercase;color:var(--accent);margin-bottom:14px;
}
.section--navy .eyebrow{color:var(--accent-2)}
.lede{font-size:1.14rem;color:var(--ink-2);max-width:62ch}
.section--navy .lede{color:#b9c6d6}
.muted{color:var(--ink-3)}
.nowrap{white-space:nowrap}
.center{text-align:center}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}

/* ---------- 導覽 ---------- */
.nav{position:sticky;top:0;z-index:60;background:rgba(11,18,32,.97);backdrop-filter:blur(8px);border-bottom:1px solid rgba(255,255,255,.08)}
.nav-inner{max-width:var(--maxw);margin:0 auto;padding:12px 22px;display:flex;align-items:center;gap:20px}
.brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:700;text-decoration:none;font-size:1.02rem;letter-spacing:.02em}
.brand-mark{width:26px;height:26px;border-radius:6px;background:linear-gradient(135deg,var(--accent-2),var(--accent));flex:none}
.brand-sub{display:block;font-size:.68rem;font-weight:500;color:#8fa2b8;letter-spacing:.08em}
.nav-links{display:flex;gap:22px;margin-left:auto;list-style:none;padding:0;margin-block:0}
.nav-links a{color:#c3cfdd;text-decoration:none;font-size:.93rem;padding:6px 0;border-bottom:2px solid transparent}
.nav-links a:hover,.nav-links a[aria-current="page"]{color:#fff;border-bottom-color:var(--accent-2)}
.nav-cta{margin-left:8px}
.nav-toggle{display:none;margin-left:auto;background:none;border:1px solid rgba(255,255,255,.22);color:#fff;border-radius:var(--radius-sm);padding:7px 12px;font-size:.9rem;cursor:pointer}

/* ---------- 按鈕 ---------- */
.btn{display:inline-flex;align-items:center;gap:8px;padding:12px 22px;border-radius:var(--radius);
  font-weight:600;font-size:.96rem;text-decoration:none;border:1px solid transparent;cursor:pointer;
  font-family:inherit;line-height:1.3;transition:transform .12s ease,box-shadow .12s ease,background .12s ease}
.btn:hover{transform:translateY(-1px)}
.btn:focus-visible{outline:3px solid var(--accent-2);outline-offset:2px}
.btn-primary{background:var(--accent);color:#fff;box-shadow:var(--shadow-1)}
.btn-primary:hover{background:var(--accent-2);color:#fff}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--line)}
.btn-ghost:hover{background:var(--paper-2);color:var(--ink)}
.section--navy .btn-ghost,.hero .btn-ghost{color:#e9eef5;border-color:rgba(255,255,255,.28)}
.section--navy .btn-ghost:hover,.hero .btn-ghost:hover{background:rgba(255,255,255,.10);color:#fff}
.btn-line{background:#06c755;color:#fff}
.btn-line:hover{background:#05b34c;color:#fff}
.btn-sm{padding:8px 14px;font-size:.86rem}
.btn-block{width:100%;justify-content:center}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}

/* ---------- Hero ---------- */
.hero{background:radial-gradient(1200px 500px at 15% -10%,#1d3550 0%,var(--navy-900) 55%);color:#e9eef5;padding:78px 0 66px}
.hero h1{color:#fff;max-width:20ch}
.hero .lede{color:#b9c6d6;max-width:58ch;margin-top:6px}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:44px;align-items:center}
.hero-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:44px;padding-top:26px;border-top:1px solid rgba(255,255,255,.12)}
.stat-num{display:block;font-size:1.55rem;font-weight:700;color:#fff;line-height:1.2}
.stat-lbl{font-size:.8rem;color:#8fa2b8;line-height:1.45}

/* ---------- 卡片 / 版面 ---------- */
.grid{display:grid;gap:20px}
.grid-2{grid-template-columns:repeat(2,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}
.card{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow-1)}
.card:hover{box-shadow:var(--shadow-2)}
.card-title{margin-bottom:.4em}
.card-body{color:var(--ink-2);font-size:.96rem}
.card-list{list-style:none;padding:0;margin:14px 0 0;font-size:.92rem}
.card-list li{padding-left:22px;position:relative;margin:.5em 0}
.card-list li::before{content:"";position:absolute;left:0;top:.55em;width:11px;height:11px;border:2px solid var(--accent);border-radius:3px}
.section--navy .card{background:var(--navy-800);border-color:rgba(255,255,255,.1)}
.section--navy .card-body{color:#b9c6d6}

/* 三根柱：硬體 / 軟體 / 工作流 */
.pillar{position:relative;padding:26px 22px 22px;border:1px solid var(--line);border-radius:var(--radius);background:var(--paper)}
.pillar-num{position:absolute;top:-14px;left:20px;width:30px;height:30px;border-radius:50%;background:var(--accent);color:#fff;
  display:grid;place-items:center;font-weight:700;font-size:.9rem}
.pillar-head{margin:.15em 0 .5em;font-size:1.15rem}
.pillar-tag{font-size:.75rem;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-3);margin-bottom:10px}

/* ---------- 計算機 ---------- */
.calc{display:grid;grid-template-columns:1fr 1fr;gap:28px;align-items:start}
.calc-form{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow-1)}
.calc-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.calc-field{display:flex;flex-direction:column;gap:6px}
.calc-field--full{grid-column:1/-1}
.calc-field label{font-size:.86rem;font-weight:600;color:var(--ink-2)}
.calc-field .hint{font-size:.76rem;color:var(--ink-3);line-height:1.45}
input[type=number],input[type=text],input[type=email],select,textarea{
  font-family:inherit;font-size:.95rem;padding:10px 12px;border:1px solid var(--line);border-radius:var(--radius-sm);
  background:var(--paper);color:var(--ink);width:100%}
input:focus,select:focus,textarea:focus{outline:2px solid var(--accent-2);outline-offset:1px;border-color:var(--accent-2)}
input[type=range]{width:100%;accent-color:var(--accent)}
.presets{display:flex;flex-wrap:wrap;gap:8px;margin:8px 0 4px}
.preset{padding:6px 12px;border:1px solid var(--line);border-radius:99px;background:var(--paper-2);font-size:.82rem;cursor:pointer;font-family:inherit;color:var(--ink-2)}
.preset:hover{border-color:var(--accent);color:var(--accent)}
.preset[aria-pressed=true]{background:var(--accent);border-color:var(--accent);color:#fff}
.advanced{margin-top:16px;border-top:1px dashed var(--line);padding-top:14px}
.advanced summary{font-size:.86rem;font-weight:600;color:var(--ink-2);cursor:pointer}

.calc-result{background:var(--navy-900);color:#e9eef5;border-radius:var(--radius);padding:24px;box-shadow:var(--shadow-2);position:sticky;top:78px}
.verdict{display:inline-block;padding:5px 14px;border-radius:99px;font-size:.8rem;font-weight:700;letter-spacing:.06em;margin-bottom:14px}
.verdict-cloud{background:#2a3f5c;color:#a8c8f0}
.verdict-hybrid{background:#14493f;color:#7fd4d0}
.verdict-onprem{background:#3c4a1e;color:#c7dd8a}
.result-big{font-size:2.1rem;font-weight:700;color:#fff;line-height:1.15;margin:0 0 4px}
.result-big-lbl{font-size:.82rem;color:#8fa2b8;margin-bottom:20px}
.result-row{display:flex;justify-content:space-between;gap:14px;padding:9px 0;border-bottom:1px solid rgba(255,255,255,.09);font-size:.9rem}
.result-row dt{color:#8fa2b8;margin:0}
.result-row dd{margin:0;color:#fff;font-weight:600;font-variant-numeric:tabular-nums}
.result-row dd.neg{color:#f0a3a3}
.result-row dd.pos{color:#8fe0b4}
.result-rows{margin:0 0 18px}
.meter{height:8px;border-radius:99px;background:rgba(255,255,255,.14);overflow:hidden;margin:6px 0 4px}
.meter-fill{height:100%;background:var(--accent-2);border-radius:99px;transition:width .3s ease}
.meter-fill.over{background:#e08a3c}
.reasons{list-style:none;padding:0;margin:16px 0 0;font-size:.87rem;color:#b9c6d6}
.reasons li{padding-left:18px;position:relative;margin:.55em 0}
.reasons li::before{content:"→";position:absolute;left:0;color:var(--accent-2)}
.disclaimer{font-size:.74rem;color:#8fa2b8;margin-top:18px;line-height:1.5;border-top:1px solid rgba(255,255,255,.1);padding-top:12px}

/* ---------- 表格 ---------- */
.table-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch}
.table{width:100%;border-collapse:collapse;font-size:.92rem;min-width:640px}
.table th,.table td{padding:11px 13px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
.table thead th{background:var(--paper-3);font-size:.8rem;letter-spacing:.05em;text-transform:uppercase;color:var(--ink-2);border-bottom:2px solid var(--line)}
.table tbody tr:hover{background:var(--paper-2)}
.table td.num{text-align:right;font-variant-numeric:tabular-nums;white-space:nowrap}

/* ---------- 清單 / 核取 ---------- */
.check{list-style:none;padding:0;margin:0}
.check-item{display:flex;gap:11px;padding:10px 0;border-bottom:1px solid var(--line-2);font-size:.95rem}
.check-item input[type=checkbox]{width:18px;height:18px;flex:none;margin-top:3px;accent-color:var(--accent)}
.check-group-title{font-size:.78rem;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-3);margin:22px 0 6px;font-weight:700}

/* ---------- 提示框 ---------- */
.callout{border-left:4px solid var(--accent);background:var(--accent-soft);padding:16px 20px;border-radius:0 var(--radius-sm) var(--radius-sm) 0;margin:22px 0;font-size:.94rem}
.callout-warn{border-left-color:var(--amber);background:var(--amber-soft)}
.callout-risk{border-left-color:var(--red);background:var(--red-soft)}
.callout-title{font-weight:700;display:block;margin-bottom:5px}

/* ---------- 引文 ---------- */
blockquote{margin:26px 0;padding:18px 24px;border-left:4px solid var(--accent);background:var(--paper-2);border-radius:0 var(--radius-sm) var(--radius-sm) 0;font-size:1.05rem;color:var(--ink-2)}
blockquote p:last-child{margin-bottom:0}
blockquote cite{display:block;font-size:.82rem;color:var(--ink-3);font-style:normal;margin-top:8px}

/* ---------- 來源標籤 ---------- */
.tag{display:inline-block;font-size:.7rem;font-weight:700;letter-spacing:.05em;padding:2px 8px;border-radius:4px;vertical-align:middle;margin-right:6px}
.tag-verified{background:var(--green-soft);color:var(--green)}
.tag-claim{background:var(--amber-soft);color:var(--amber)}
.tag-estimate{background:var(--paper-3);color:var(--ink-2)}

/* ---------- FAQ ---------- */
.faq-item{border:1px solid var(--line);border-radius:var(--radius-sm);margin-bottom:10px;background:var(--paper)}
.faq-item summary{padding:15px 18px;font-weight:600;cursor:pointer;list-style:none;display:flex;justify-content:space-between;gap:16px;align-items:center}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";font-size:1.3rem;color:var(--accent);flex:none;line-height:1}
.faq-item[open] summary::after{content:"−"}
.faq-item[open] summary{border-bottom:1px solid var(--line-2)}
.faq-body{padding:15px 18px 18px;color:var(--ink-2);font-size:.95rem}

/* ---------- 名單表單 ---------- */
.lead{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:26px;box-shadow:var(--shadow-2)}
.lead-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.field{display:flex;flex-direction:column;gap:6px}
.field--full{grid-column:1/-1}
.field label{font-size:.86rem;font-weight:600}
.req{color:var(--red)}
.form-note{font-size:.8rem;color:var(--ink-3);margin-top:14px}
.form-status{margin-top:14px;font-size:.9rem;font-weight:600}
.form-status.ok{color:var(--green)}
.form-status.err{color:var(--red)}
.unconfigured{background:var(--amber-soft);border:1px solid var(--amber);color:var(--amber);padding:12px 16px;border-radius:var(--radius-sm);font-size:.85rem;margin-bottom:18px}

/* ---------- 頁腳 ---------- */
.footer{background:var(--navy-900);color:#8fa2b8;padding:44px 0;font-size:.86rem}
.footer a{color:#c3cfdd}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:32px;margin-bottom:26px}
.footer h4{color:#fff;font-size:.9rem;margin-bottom:12px}
.footer ul{list-style:none;padding:0;margin:0}
.footer li{margin:.45em 0}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding-top:18px;font-size:.78rem;line-height:1.6}

/* ---------- Chat widget（chat.js 必須使用這些 id/class）---------- */
#chat-launcher{position:fixed;right:20px;bottom:20px;z-index:200;background:var(--accent);color:#fff;border:none;
  border-radius:99px;padding:14px 20px;font-size:.92rem;font-weight:600;cursor:pointer;box-shadow:var(--shadow-2);font-family:inherit}
#chat-launcher:hover{background:var(--accent-2)}
#chat-launcher:focus-visible{outline:3px solid var(--amber);outline-offset:2px}
#chat-panel{position:fixed;right:20px;bottom:20px;z-index:201;width:min(380px,calc(100vw - 32px));
  max-height:min(600px,calc(100vh - 40px));display:none;flex-direction:column;background:var(--paper);
  border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-2);overflow:hidden}
#chat-panel[data-open=true]{display:flex}
.chat-head{background:var(--navy-900);color:#fff;padding:14px 16px;display:flex;justify-content:space-between;align-items:center;gap:12px}
.chat-head strong{font-size:.95rem}
.chat-head small{display:block;font-size:.72rem;color:#8fa2b8}
.chat-close{background:none;border:none;color:#fff;font-size:1.4rem;cursor:pointer;line-height:1;padding:0 4px}
.chat-log{flex:1;overflow-y:auto;padding:16px;background:var(--paper-2);min-height:220px}
.chat-msg{margin-bottom:12px;display:flex;flex-direction:column}
.chat-bubble{padding:10px 13px;border-radius:12px;font-size:.9rem;line-height:1.6;white-space:pre-wrap;word-break:break-word}
.chat-bot .chat-bubble{background:var(--paper);border:1px solid var(--line);border-bottom-left-radius:3px}
.chat-user{align-items:flex-end}
.chat-user .chat-bubble{background:var(--accent);color:#fff;border-bottom-right-radius:3px}
.chat-cta{margin-top:8px;display:flex;flex-direction:column;gap:6px}
.chat-cta a,.chat-cta button{font-size:.82rem;color:var(--accent);background:none;border:1px solid var(--line);
  border-radius:var(--radius-sm);padding:7px 10px;cursor:pointer;text-align:left;font-family:inherit;text-decoration:none}
.chat-cta a:hover,.chat-cta button:hover{border-color:var(--accent);background:var(--accent-soft)}
.chat-input-row{display:flex;gap:8px;padding:12px;border-top:1px solid var(--line);background:var(--paper)}
.chat-input-row input,.chat-input-row textarea{flex:1;resize:none;max-height:6em}
.chat-form{padding:12px;border-top:1px solid var(--line);display:grid;gap:8px}

/* ---------- RWD ---------- */
@media (max-width:900px){
  .hero-grid,.calc{grid-template-columns:1fr}
  .grid-3,.grid-4{grid-template-columns:repeat(2,1fr)}
  .calc-result{position:static}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:680px){
  body{font-size:16px}
  .section{padding:44px 0}
  .nav-links{display:none;position:absolute;top:100%;left:0;right:0;flex-direction:column;gap:0;
    background:var(--navy-900);padding:8px 22px 16px;border-bottom:1px solid rgba(255,255,255,.1)}
  .nav-links[data-open=true]{display:flex}
  .nav-links a{display:block;padding:11px 0;border-bottom:1px solid rgba(255,255,255,.07)}
  .nav-cta{display:none}
  .nav-toggle{display:block}
  .grid-2,.grid-3,.grid-4,.calc-grid,.lead-grid,.hero-stats{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  #chat-panel{right:8px;left:8px;bottom:8px;width:auto}
}
@media print{
  .nav,#chat-launcher,.hero-actions,.btn{display:none!important}
  body{font-size:11pt;color:#000}
  .section{padding:16px 0}
}