/* ============================================================
   哲威揚機電電子軟體菁英設計群 — 宣紙靛藍墨韻主題
   靈感自 indigo-eddy：washi 宣紙 × 靛藍墨 × 琥珀落款
   ============================================================ */
:root{
  --washi:#EDEBE2;
  --washi-deep:#DFDCCF;
  --panel:rgba(237,235,226,.80);      /* 半透明宣紙面板，讓墨在後方隱約流動 */
  --panel-solid:#E7E4D9;
  --indigo:#162844;                    /* 靛藍墨（主色/文字） */
  --indigo-2:#20365c;                  /* 稍亮靛藍（漸層/hover） */
  --indigo-faint:#5C6B82;              /* 淡墨（次要文字） */
  --kohaku:#9A6A3A;                    /* 琥珀（落款/強調） */
  --kohaku-deep:#7c5228;
  --ink-dim:#4c5a72;
  --ink-mute:#7a839a;
  --line:rgba(22,40,68,.16);
  --line-2:rgba(22,40,68,.30);
  --grad:linear-gradient(100deg,#162844,#3a557f 55%,#9A6A3A);
  --radius:14px;
  --wrap:1140px;
  --shadow:0 22px 48px -26px rgba(22,40,68,.5);
  --serif:"Noto Serif TC","Yu Mincho","Hiragino Mincho ProN","PMingLiU",serif;
  --sans:"Noto Sans TC",system-ui,-apple-system,"Segoe UI","PingFang TC","Microsoft JhengHei",sans-serif;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--washi);
  color:var(--indigo);
  font-family:var(--sans);
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
a{color:inherit;text-decoration:none}
h1,h2,h3{line-height:1.3;margin:0;font-family:var(--serif);font-weight:700}
h2{font-size:clamp(1.6rem,3.4vw,2.5rem);letter-spacing:.06em}
p{margin:0 0 1em}
code{font-family:"Space Grotesk",ui-monospace,SFMono-Regular,Menlo,monospace;background:rgba(22,40,68,.08);color:var(--indigo);padding:.08em .4em;border-radius:5px;font-size:.9em}
.wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 22px;position:relative;z-index:1}
.grad{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.only-mobile{display:none}

/* ===== 背景層：流體墨 + 宣紙紋 + 暈影 ===== */
#ink{position:fixed;inset:0;width:100%;height:100%;z-index:0;display:block;mix-blend-mode:multiply;pointer-events:none;opacity:.9}
.washi-layer{position:fixed;inset:0;z-index:0;pointer-events:none;opacity:.5;mix-blend-mode:multiply}
.washi-layer svg{width:100%;height:100%}
.vignette{position:fixed;inset:0;z-index:0;pointer-events:none;
  background:radial-gradient(ellipse at 50% 40%,transparent 58%,rgba(22,40,68,.14) 100%)}

/* ===== 按鈕 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:.4em;
  font-family:var(--sans);font-weight:700;font-size:1rem;line-height:1;letter-spacing:.04em;
  padding:.9em 1.6em;border-radius:2px;border:1px solid transparent;
  cursor:pointer;transition:transform .15s ease,box-shadow .2s,background .2s,color .2s,border-color .2s;
  white-space:nowrap;
}
.btn--sm{padding:.6em 1.1em;font-size:.92rem}
.btn--block{display:flex;width:100%}
.btn--primary{background:var(--indigo);color:var(--washi);box-shadow:0 10px 24px -12px rgba(22,40,68,.7)}
.btn--primary:hover{background:var(--indigo-2);transform:translateY(-2px);box-shadow:0 16px 32px -14px rgba(22,40,68,.8)}
.btn--ghost{background:transparent;color:var(--indigo);border-color:var(--line-2)}
.btn--ghost:hover{border-color:var(--kohaku);color:var(--kohaku);transform:translateY(-2px)}

/* ===== 導覽列 ===== */
.nav{position:sticky;top:0;z-index:50;backdrop-filter:blur(10px);background:rgba(237,235,226,.78);border-bottom:1px solid var(--line)}
.nav__inner{max-width:var(--wrap);margin:0 auto;padding:11px 22px;display:flex;align-items:center;gap:20px}
.brand{display:flex;align-items:center;gap:11px;font-family:var(--serif);font-weight:700;font-size:1.12rem}
.brand__mark{flex:none;width:34px;height:34px;display:grid;place-items:center;background:var(--kohaku);color:var(--washi);
  font-family:var(--serif);font-weight:700;font-size:1.15rem;border-radius:3px;transform:rotate(-2deg);
  box-shadow:0 0 0 1px rgba(154,106,58,.35) inset}
.brand__name{display:flex;flex-direction:column;line-height:1.1;color:var(--indigo)}
.brand__sub{font-size:.6rem;font-weight:400;letter-spacing:.1em;color:var(--ink-mute);font-family:var(--sans);white-space:nowrap}
.nav__links{display:flex;gap:26px;margin-left:auto;font-size:.95rem;font-weight:500;font-family:var(--sans)}
.nav__links a{color:var(--ink-dim);transition:color .2s}
.nav__links a:hover{color:var(--kohaku)}
.nav__cta{margin-left:4px}
.nav__toggle{display:none;flex-direction:column;gap:5px;background:none;border:0;cursor:pointer;padding:8px;margin-left:auto}
.nav__toggle span{width:24px;height:2px;background:var(--indigo);border-radius:2px;transition:.25s}
.nav__toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav__toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav__toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ===== Hero ===== */
.hero{position:relative;padding:78px 0 62px}
.hero__grid{position:relative;display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center}
.eyebrow{font-family:var(--sans);letter-spacing:.34em;font-size:.76rem;font-weight:700;color:var(--kohaku);margin:0 0 16px;text-transform:uppercase}
.hero__title{font-family:var(--serif);font-size:clamp(2.5rem,6vw,4.3rem);font-weight:700;letter-spacing:.06em;color:var(--indigo)}
.hero__lead{color:var(--ink-dim);font-size:1.06rem;max-width:34em;margin:22px 0 28px}
.hero__lead strong{color:var(--indigo)}
.hero__actions{display:flex;gap:14px;flex-wrap:wrap}
.hero__stats{list-style:none;display:flex;gap:30px;padding:26px 0 0;margin:28px 0 0;border-top:1px solid var(--line)}
.hero__stats b{display:block;font-family:var(--serif);font-size:1.5rem;color:var(--indigo)}
.hero__stats span{font-size:.82rem;color:var(--ink-mute)}

.video-card{background:var(--panel);border:1px solid var(--line-2);border-radius:6px;padding:12px;box-shadow:var(--shadow);backdrop-filter:blur(2px)}
.video-card__frame{position:relative;aspect-ratio:9/16;max-height:520px;margin:0 auto;border-radius:3px;overflow:hidden;background:#0d1525}
.video-card__frame iframe{position:absolute;inset:0;width:100%;height:100%;border:0}
.video-card__cap{margin:.7em .2em .1em;font-size:.82rem;color:var(--ink-mute);text-align:center}

/* ===== 區塊 ===== */
.section{padding:84px 0;position:relative;z-index:1}
.section::before{content:"";position:absolute;inset:0;background:var(--panel);z-index:-1;backdrop-filter:blur(2px)}
.section--alt::before{background:rgba(223,220,207,.82)}
.section__head{max-width:44em;margin:0 auto 46px;text-align:center}
.section__head h2{position:relative;display:inline-block}
.section__sub{color:var(--ink-dim);margin-top:16px;font-family:var(--sans)}

/* 印章式小標記 */
.section__head .eyebrow::before{content:"◈ ";color:var(--kohaku)}

/* ===== 卡片 ===== */
.card{background:var(--panel-solid);border:1px solid var(--line);border-radius:6px;padding:26px;box-shadow:0 14px 30px -24px rgba(22,40,68,.5)}
.card--accent{background:linear-gradient(180deg,rgba(154,106,58,.10),rgba(237,235,226,.9));border-color:var(--line-2)}

/* ===== 課程 ===== */
.course{display:grid;grid-template-columns:1.5fr 1fr;gap:26px;align-items:start}
.course__main .course__h{font-family:var(--serif);font-size:1.08rem;font-weight:700;margin:26px 0 12px;color:var(--indigo)}
.course__main .course__h:first-of-type{margin-top:6px}
.pill-row{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:6px}
.pill{font-family:var(--sans);font-size:.76rem;font-weight:700;letter-spacing:.04em;padding:.4em .8em;border-radius:2px;background:rgba(22,40,68,.06);border:1px solid var(--line-2);color:var(--ink-dim)}
.pill--hot{background:rgba(154,106,58,.14);border-color:rgba(154,106,58,.45);color:var(--kohaku-deep)}
.ticks{list-style:none;padding:0;margin:0;display:grid;gap:10px}
.ticks li{position:relative;padding-left:26px;color:var(--ink-dim)}
.ticks li::before{content:"";position:absolute;left:2px;top:.55em;width:14px;height:8px;border-left:2px solid var(--kohaku);border-bottom:2px solid var(--kohaku);transform:rotate(-45deg)}
.ticks--muted li{color:var(--ink-mute)}
.modules{display:grid;gap:12px}
.module{display:flex;gap:14px;align-items:flex-start;background:rgba(22,40,68,.04);border:1px solid var(--line);border-radius:4px;padding:14px 16px}
.module__no{flex:none;font-family:var(--serif);font-weight:700;font-size:.82rem;color:var(--washi);background:var(--indigo);padding:.35em .7em;border-radius:2px}
.module p{margin:0;color:var(--ink-dim);font-size:.96rem}
.course__note{margin-top:22px;padding-top:18px;border-top:1px solid var(--line);font-size:.86rem;color:var(--ink-mute)}

.facts{margin:0 0 18px;display:grid;gap:14px}
.facts div{display:grid;gap:2px}
.facts dt{font-size:.74rem;letter-spacing:.14em;color:var(--ink-mute)}
.facts dd{margin:0;font-weight:700;font-size:1.02rem;font-family:var(--serif)}
.facts dd span{font-weight:400;color:var(--ink-dim);font-size:.9em;font-family:var(--sans)}
.price{background:rgba(22,40,68,.05);border:1px solid var(--line);border-radius:4px;padding:14px 16px;margin-bottom:18px}
.price__row{display:flex;justify-content:space-between;align-items:baseline;padding:6px 0;color:var(--ink-dim)}
.price__row b{font-family:var(--serif);font-size:1.05rem;color:var(--indigo)}
.price__row--hl{color:var(--indigo);font-weight:700}
.price__row--hl b{color:var(--kohaku);font-size:1.25rem}
.course__side .btn{margin-bottom:10px}

/* ===== 關於 ===== */
.about{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.about__copy p{color:var(--ink-dim)}
.about__copy strong{color:var(--indigo)}
.about h2{margin-bottom:18px}
.values{list-style:none;padding:0;margin:22px 0 0;display:grid;gap:12px}
.values li{padding-left:16px;border-left:2px solid var(--kohaku);color:var(--ink-dim)}
.values b{display:block;color:var(--indigo);font-size:.98rem;font-family:var(--serif)}
/* 墨盒式終端機 */
.terminal{font-family:"Space Grotesk",ui-monospace,monospace;font-size:.92rem;line-height:1.9;background:var(--indigo);border:1px solid var(--indigo-2);border-radius:6px;padding:22px;box-shadow:var(--shadow);white-space:pre-wrap;color:#c8d2e4;overflow-x:auto}
.t-c{color:#8fb3d9}.t-g{color:#a8c8a0}.t-d{color:#7f8ba3}
.cursor{color:#c8d2e4;animation:blink 1.1s steps(1) infinite}
@keyframes blink{50%{opacity:0}}

/* ===== 卡片格 ===== */
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:20px}
.svc{transition:transform .2s,border-color .2s,box-shadow .2s}
.svc:hover{transform:translateY(-4px);border-color:var(--line-2);box-shadow:0 20px 36px -24px rgba(22,40,68,.55)}
.svc__ic{font-size:1.6rem;margin-bottom:10px;filter:sepia(.2)}
.svc h3{font-size:1.12rem;margin-bottom:8px;color:var(--indigo)}
.svc p{color:var(--ink-dim);font-size:.95rem;margin:0}

.work{display:flex;flex-direction:column;gap:8px;transition:transform .2s,border-color .2s}
.work:hover{transform:translateY(-4px);border-color:var(--kohaku)}
.work__tag{align-self:flex-start;font-family:var(--sans);font-size:.72rem;letter-spacing:.08em;font-weight:700;color:var(--kohaku-deep);background:rgba(154,106,58,.12);border:1px solid rgba(154,106,58,.32);padding:.3em .7em;border-radius:2px}
.work h3{font-size:1.06rem;margin:4px 0;color:var(--indigo)}
.work p{color:var(--ink-dim);font-size:.93rem;margin:0;flex:1}
.work__go{color:var(--kohaku);font-weight:700;font-size:.9rem;margin-top:6px;font-family:var(--sans)}

/* ===== 聯絡 ===== */
.contact{display:grid;grid-template-columns:1fr 1.05fr;gap:48px;align-items:start}
.contact__copy h2{margin:6px 0 14px}
.contact__copy p{color:var(--ink-dim)}
.contact__copy .btn{margin:6px 0 8px}
.contact__links{list-style:none;padding:0;margin:22px 0 0;display:grid;gap:8px;font-family:var(--sans)}
.contact__links a{color:var(--ink-dim);transition:color .2s}
.contact__links a:hover{color:var(--kohaku)}
.field{display:grid;gap:6px;margin-bottom:14px}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
label{font-size:.86rem;color:var(--ink-dim);font-weight:500;font-family:var(--sans)}
input,select,textarea{
  width:100%;font:inherit;font-family:var(--sans);color:var(--indigo);
  background:rgba(255,255,255,.5);border:1px solid var(--line-2);border-radius:3px;
  padding:.7em .8em;transition:border-color .2s,box-shadow .2s;
}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--kohaku);box-shadow:0 0 0 3px rgba(154,106,58,.15)}
textarea{resize:vertical}
select{appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--ink-mute) 50%),linear-gradient(135deg,var(--ink-mute) 50%,transparent 50%);background-position:calc(100% - 18px) 50%,calc(100% - 13px) 50%;background-size:5px 5px,5px 5px;background-repeat:no-repeat}
.form-note{margin:12px 0 0;font-size:.9rem;min-height:1.2em;font-family:var(--sans)}
.form-note.ok{color:var(--kohaku-deep)}
.form-note.err{color:#a63a3a}

/* ===== 頁尾 ===== */
.footer{position:relative;z-index:1;border-top:1px solid var(--line);background:rgba(223,220,207,.9);padding:48px 0 26px;margin-top:10px}
.footer__inner{display:flex;justify-content:space-between;gap:30px;flex-wrap:wrap;padding-bottom:26px;border-bottom:1px solid var(--line)}
.footer__brand .brand__name{font-family:var(--serif);font-weight:700;font-size:1.1rem;color:var(--indigo)}
.footer__brand .brand__sub{font-size:.62rem;color:var(--ink-mute)}
.footer__brand p{color:var(--ink-mute);margin:.6em 0 0;font-size:.9rem}
.footer__nav{display:flex;gap:22px;flex-wrap:wrap;font-size:.92rem;font-family:var(--sans)}
.footer__nav a{color:var(--ink-dim)}
.footer__nav a:hover{color:var(--kohaku)}
.footer__bar{display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;padding-top:22px;font-size:.8rem;color:var(--ink-mute)}
.footer__made{font-family:"Space Grotesk",sans-serif}

/* ===== RWD ===== */
@media (max-width:900px){
  .hero__grid{grid-template-columns:1fr;gap:36px}
  .hero__media{max-width:340px;margin:0 auto;width:100%}
  .course{grid-template-columns:1fr}
  .about{grid-template-columns:1fr;gap:30px}
  .contact{grid-template-columns:1fr;gap:30px}
  .nav__links,.nav__cta{display:none}
  .nav__toggle{display:flex}
  .nav.open .nav__links{display:flex;position:absolute;top:100%;left:0;right:0;flex-direction:column;gap:0;background:rgba(237,235,226,.98);backdrop-filter:blur(12px);border-bottom:1px solid var(--line);padding:8px 22px 18px}
  .nav.open .nav__links a{padding:12px 0;border-bottom:1px solid var(--line)}
  .nav.open .nav__cta{display:flex;margin:14px 22px 6px}
  .only-mobile{display:inline}
}
@media (max-width:520px){
  .section{padding:60px 0}
  .hero{padding:52px 0 40px}
  .field-row{grid-template-columns:1fr}
  .hero__stats{gap:20px}
}
@media (prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;animation:none!important;transition:none!important}}