/* ============================================================
   百宏文教機構 BHCS — 全站樣式
   設計語彙：方格紙 + 紅筆批改
   ============================================================ */

:root{
  --ink:#16233A;
  --ink-soft:#43516B;
  --ink-faint:#7C879B;
  --paper:#FCFCFA;
  --surface:#F2F4F7;
  --surface-2:#E8ECF2;
  --grid:#DCE2EA;
  --grid-strong:#C9D2DE;
  --red:#C8352B;
  --red-soft:#F6E3E1;
  --orange:#E8620C;
  --orange-dark:#C24F06;
  --line-green:#06C755;

  --sans:"Noto Sans TC","PingFang TC","Microsoft JhengHei",sans-serif;
  --serif:"Noto Serif TC","PingFang TC",serif;
  --mono:"IBM Plex Mono","Roboto Mono",monospace;

  --wrap:1120px;
  --radius:4px;
  --shadow:0 1px 2px rgba(22,35,58,.06),0 8px 24px rgba(22,35,58,.06);
}

*,*::before,*::after{box-sizing:border-box}

html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}

body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--sans);
  font-size:17px;
  line-height:1.85;
  font-weight:400;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}

/* ---------- 方格紙 ---------- */
.gridpaper{
  background-color:var(--paper);
  background-image:
    linear-gradient(var(--grid) 1px,transparent 1px),
    linear-gradient(90deg,var(--grid) 1px,transparent 1px),
    linear-gradient(var(--grid-strong) 1px,transparent 1px),
    linear-gradient(90deg,var(--grid-strong) 1px,transparent 1px);
  background-size:24px 24px,24px 24px,120px 120px,120px 120px;
  background-position:-1px -1px,-1px -1px,-1px -1px,-1px -1px;
}

/* ---------- 排版 ---------- */
h1,h2,h3,h4{font-family:var(--serif);font-weight:900;color:var(--ink);letter-spacing:-.01em;margin:0}
h1{font-size:clamp(2rem,5.2vw,3.4rem);line-height:1.22}
h2{font-size:clamp(1.55rem,3.4vw,2.35rem);line-height:1.3;margin-bottom:.6em}
h3{font-size:clamp(1.15rem,2.2vw,1.4rem);line-height:1.45;margin-bottom:.45em}
h4{font-size:1.05rem;font-weight:700;margin-bottom:.35em}
p{margin:0 0 1.15em}
a{color:var(--ink);text-decoration-color:var(--grid-strong);text-underline-offset:3px}
a:hover{text-decoration-color:var(--red)}
ul,ol{margin:0 0 1.3em;padding-left:1.35em}
li{margin-bottom:.45em}
strong{font-weight:700}
.num,time,.tel{font-family:var(--mono);font-feature-settings:"tnum";letter-spacing:-.01em}

.eyebrow{
  font-family:var(--mono);font-size:.74rem;font-weight:500;
  letter-spacing:.22em;text-transform:uppercase;
  color:var(--red);margin:0 0 .9em;display:block;
}
.lede{font-size:clamp(1.05rem,2vw,1.22rem);line-height:1.8;color:var(--ink-soft);font-weight:300}

/* ---------- 紅筆批改 ---------- */
.mark{position:relative;display:inline-block;white-space:nowrap}
.mark svg{
  position:absolute;left:-4%;bottom:-.32em;width:108%;height:.55em;
  overflow:visible;pointer-events:none;
}
.mark svg path{
  fill:none;stroke:var(--red);stroke-width:3.2;stroke-linecap:round;
  vector-effect:non-scaling-stroke;
  stroke-dasharray:900;stroke-dashoffset:900;
  animation:draw .9s .35s cubic-bezier(.6,0,.3,1) forwards;
}
.mark-circle svg{left:-6%;top:-30%;width:112%;height:174%;bottom:auto}
@keyframes draw{to{stroke-dashoffset:0}}
@media (prefers-reduced-motion:reduce){
  .mark svg path{animation:none;stroke-dashoffset:0}
  html{scroll-behavior:auto}
}

/* ---------- 版面 ---------- */
.wrap{width:min(100% - 2.4rem,var(--wrap));margin-inline:auto}
.wrap-narrow{width:min(100% - 2.4rem,760px);margin-inline:auto}
section{padding-block:clamp(3.2rem,7vw,5.4rem)}
.sec-tint{background:var(--surface)}
.sec-ink{background:var(--ink);color:#EEF1F6}
.sec-ink h2,.sec-ink h3{color:#fff}
.sec-ink .lede{color:#B9C3D4}
.sec-ink a{color:#fff}

/* ---------- 頁首 ---------- */
.masthead{
  position:sticky;top:0;z-index:60;background:rgba(252,252,250,.94);
  backdrop-filter:blur(10px);border-bottom:1px solid var(--grid);
}
.masthead .bar{display:flex;align-items:center;gap:1rem;height:66px}
.brand{display:flex;align-items:baseline;gap:.55rem;text-decoration:none;flex:0 0 auto}
.brand b{font-family:var(--serif);font-weight:900;font-size:1.28rem;letter-spacing:.02em}
.brand span{font-family:var(--mono);font-size:.68rem;letter-spacing:.2em;color:var(--ink-faint)}
.nav{margin-left:auto;display:flex;gap:.15rem;align-items:center}
.nav a{
  font-size:.9rem;font-weight:500;text-decoration:none;color:var(--ink-soft);
  padding:.45rem .62rem;border-radius:var(--radius);white-space:nowrap;
}
.nav a:hover{color:var(--ink);background:var(--surface)}
.nav a[aria-current="page"]{color:var(--ink);font-weight:700;box-shadow:inset 0 -2px 0 var(--red)}
.callbtn{
  display:inline-flex;align-items:center;gap:.4rem;background:var(--orange);color:#fff!important;
  font-family:var(--mono);font-size:.86rem;font-weight:600;padding:.5rem .85rem;
  border-radius:var(--radius);text-decoration:none;white-space:nowrap;
}
.callbtn:hover{background:var(--orange-dark)}
.burger{display:none;margin-left:auto;background:none;border:1px solid var(--grid-strong);
  border-radius:var(--radius);width:42px;height:38px;cursor:pointer;align-items:center;justify-content:center}
.burger span{display:block;width:18px;height:2px;background:var(--ink);position:relative}
.burger span::before,.burger span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink)}
.burger span::before{top:-6px}.burger span::after{top:6px}

@media(max-width:940px){
  .burger{display:flex}
  .nav{
    display:none;position:absolute;top:66px;left:0;right:0;background:var(--paper);
    border-bottom:1px solid var(--grid);flex-direction:column;align-items:stretch;
    padding:.6rem 1.2rem 1.1rem;gap:.1rem;box-shadow:var(--shadow);
  }
  .nav.open{display:flex}
  .nav a{padding:.7rem .4rem;font-size:1rem;border-bottom:1px solid var(--grid)}
  .nav a[aria-current="page"]{box-shadow:none;color:var(--red)}
  .nav .callbtn{justify-content:center;margin-top:.7rem;border-bottom:none;padding:.75rem}
}

/* ---------- Hero ---------- */
.hero{padding-block:clamp(3rem,8vw,6rem) clamp(2.6rem,6vw,4.4rem);border-bottom:1px solid var(--grid)}
.hero .loc{
  font-family:var(--mono);font-size:.78rem;letter-spacing:.14em;color:var(--ink-faint);
  margin-bottom:1.2rem;display:flex;align-items:center;gap:.5rem;flex-wrap:wrap;
}
.hero .loc::before{content:"";width:26px;height:1px;background:var(--red)}
.hero h1{margin-bottom:.7em;max-width:19ch}
.hero .lede{max-width:48ch}
.hero-actions{display:flex;gap:.7rem;flex-wrap:wrap;margin-top:2rem}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:.45rem;
  font-family:var(--sans);font-size:.98rem;font-weight:700;padding:.85rem 1.5rem;
  border-radius:var(--radius);text-decoration:none;border:1.5px solid transparent;cursor:pointer;
}
.btn-primary{background:var(--orange);color:#fff}
.btn-primary:hover{background:var(--orange-dark)}
.btn-line{background:var(--line-green);color:#fff}
.btn-line:hover{filter:brightness(.92)}
.btn-ghost{border-color:var(--ink);color:var(--ink);background:transparent}
.btn-ghost:hover{background:var(--ink);color:#fff}
:where(a,button,input,textarea,select):focus-visible{outline:3px solid var(--red);outline-offset:2px}

/* ---------- 成績單式數據列 ---------- */
.report{
  display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));
  border:1.5px solid var(--ink);background:var(--paper);margin-top:2.6rem;
}
.report div{padding:1.1rem 1.2rem;border-right:1px solid var(--grid)}
.report div:last-child{border-right:none}
.report dt{font-size:.78rem;color:var(--ink-faint);letter-spacing:.06em;margin-bottom:.3rem}
.report dd{margin:0;font-family:var(--mono);font-size:1.7rem;font-weight:600;line-height:1.1}
.report dd small{font-size:.8rem;font-weight:400;color:var(--ink-faint);margin-left:.25rem}
@media(max-width:620px){
  .report{grid-template-columns:1fr 1fr}
  .report div{border-bottom:1px solid var(--grid)}
  .report div:nth-child(2n){border-right:none}
}

/* ---------- 卡片 ---------- */
.cards{display:grid;gap:1.1rem;grid-template-columns:repeat(auto-fit,minmax(280px,1fr))}
.card{
  background:var(--paper);border:1px solid var(--grid-strong);border-radius:var(--radius);
  padding:1.6rem 1.5rem;text-decoration:none;color:inherit;display:block;
  transition:border-color .18s,transform .18s;
}
a.card:hover{border-color:var(--red);transform:translateY(-2px)}
.card .tag{
  font-family:var(--mono);font-size:.7rem;letter-spacing:.16em;color:var(--red);
  display:block;margin-bottom:.7rem;
}
.card p:last-child{margin-bottom:0}
.card p{font-size:.95rem;color:var(--ink-soft);line-height:1.75}

/* ---------- 內文區塊 ---------- */
.prose h2{margin-top:2.6em}
.prose h2:first-child{margin-top:0}
.prose h3{margin-top:2em}
.prose ul li::marker{color:var(--red)}
.prose blockquote{
  margin:1.8em 0;padding:1.1rem 1.4rem;background:var(--red-soft);
  border-left:3px solid var(--red);border-radius:0 var(--radius) var(--radius) 0;
}
.prose blockquote p{margin:0;font-size:.98rem}

table{width:100%;border-collapse:collapse;margin:1.6em 0;font-size:.94rem}
th,td{padding:.72rem .85rem;border:1px solid var(--grid-strong);text-align:left;vertical-align:top}
th{background:var(--surface-2);font-weight:700;font-size:.88rem}
td .num{font-weight:600}

/* ---------- 課表 ---------- */
.plan{border:1.5px solid var(--ink);background:var(--paper);margin:2rem 0}
.plan-row{display:flex;gap:1.1rem;padding:1.15rem 1.3rem;border-bottom:1px solid var(--grid)}
.plan-row:last-child{border-bottom:none}
.plan-row .k{
  font-family:var(--mono);font-size:.82rem;color:var(--red);font-weight:600;
  flex:0 0 88px;padding-top:.28rem;
}
.plan-row .v{flex:1}
.plan-row .v h4{margin-bottom:.25em}
.plan-row .v p{margin:0;font-size:.94rem;color:var(--ink-soft)}
@media(max-width:560px){.plan-row{flex-direction:column;gap:.4rem}.plan-row .k{flex:none;padding-top:0}}

/* ---------- FAQ ---------- */
.faq details{border-bottom:1px solid var(--grid-strong);padding:.3rem 0}
.faq summary{
  cursor:pointer;list-style:none;padding:1.1rem 2.2rem 1.1rem 0;position:relative;
  font-weight:700;font-size:1.02rem;font-family:var(--serif);
}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{
  content:"+";position:absolute;right:.3rem;top:50%;transform:translateY(-50%);
  font-family:var(--mono);font-size:1.35rem;color:var(--red);font-weight:400;
}
.faq details[open] summary::after{content:"−"}
.faq details p{padding:0 0 1.2rem;margin:0;color:var(--ink-soft);font-size:.97rem}

/* ---------- 表單 ---------- */
.formcard{
  background:var(--paper);border:1.5px solid var(--ink);border-radius:var(--radius);
  padding:clamp(1.5rem,4vw,2.4rem);
}
.field{margin-bottom:1.15rem}
.field label{display:block;font-size:.88rem;font-weight:700;margin-bottom:.4rem}
.field input,.field select,.field textarea{
  width:100%;padding:.72rem .85rem;font:inherit;font-size:.97rem;
  border:1px solid var(--grid-strong);border-radius:var(--radius);
  background:#fff;color:var(--ink);
}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--red);outline-offset:1px}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:1rem}
@media(max-width:560px){.field-row{grid-template-columns:1fr}}
.formnote{font-size:.84rem;color:var(--ink-faint);margin-top:1rem}

/* ---------- 聯絡資訊 ---------- */
.contact-grid{display:grid;gap:2.4rem;grid-template-columns:1fr 1fr;align-items:start}
@media(max-width:860px){.contact-grid{grid-template-columns:1fr}}
.nap{list-style:none;padding:0;margin:0}
.nap li{display:flex;gap:1rem;padding:.9rem 0;border-bottom:1px solid var(--grid);margin:0}
.nap li:last-child{border-bottom:none}
.nap .k{flex:0 0 76px;font-size:.82rem;color:var(--ink-faint);padding-top:.15rem}
.nap .v{flex:1;font-weight:500}
.nap .v a{font-family:var(--mono);text-decoration:none;font-weight:600}
.hours{font-family:var(--mono);font-size:.9rem;line-height:2;margin:0}
.mapframe{width:100%;aspect-ratio:4/3;border:1.5px solid var(--ink);border-radius:var(--radius);filter:grayscale(.25)}

/* ---------- 待補標記（上線前請移除） ---------- */
.todo{
  display:inline-block;background:#FFF4CC;border:1px dashed #C79A00;color:#7A5B00;
  font-family:var(--mono);font-size:.76rem;padding:.15rem .5rem;border-radius:3px;
}

/* ---------- 頁尾 ---------- */
.foot{background:var(--ink);color:#AEBACC;padding-block:3.2rem 2rem;font-size:.9rem}
.foot a{color:#DCE3ED;text-decoration:none}
.foot a:hover{text-decoration:underline}
.foot-grid{display:grid;gap:2rem;grid-template-columns:1.4fr 1fr 1fr;margin-bottom:2.4rem}
@media(max-width:760px){.foot-grid{grid-template-columns:1fr 1fr}}
@media(max-width:520px){.foot-grid{grid-template-columns:1fr}}
.foot h4{color:#fff;font-size:.82rem;font-family:var(--mono);letter-spacing:.16em;
  text-transform:uppercase;margin-bottom:1rem;font-weight:500}
.foot ul{list-style:none;padding:0;margin:0}
.foot li{margin-bottom:.55rem}
.foot .legal{border-top:1px solid #2C3A54;padding-top:1.5rem;font-size:.82rem;
  display:flex;justify-content:space-between;gap:1rem;flex-wrap:wrap;color:#7F8DA3}
.foot .brandline{font-family:var(--serif);font-weight:900;color:#fff;font-size:1.2rem;margin-bottom:.6rem}

/* ---------- 手機底部固定操作列 ---------- */
.dock{
  position:fixed;left:0;right:0;bottom:0;z-index:70;display:none;
  background:rgba(252,252,250,.97);backdrop-filter:blur(10px);
  border-top:1px solid var(--grid-strong);padding:.5rem .6rem calc(.5rem + env(safe-area-inset-bottom));
  gap:.5rem;
}
.dock a{
  flex:1;display:flex;align-items:center;justify-content:center;gap:.35rem;
  padding:.75rem .5rem;border-radius:var(--radius);font-size:.92rem;font-weight:700;
  text-decoration:none;
}
@media(max-width:760px){.dock{display:flex}body{padding-bottom:74px}}

.skip{position:absolute;left:-9999px}
.skip:focus{left:1rem;top:1rem;z-index:99;background:var(--ink);color:#fff;padding:.7rem 1rem;border-radius:var(--radius)}