/* ===== Young Docents of the Southern Branch · Yung Ching SHS bilingual course =====
   Palette: ink charcoal (the museum's calligraphic "ink-wash" architecture)
            + cinnabar seal red (the red signature seal on an ink painting).
            Pure-white background. Distinct from the sister cross-county sites:
            Taibao Elementary ink-blue #1F3A5F · Taibao JHS garnet #7A2A3A ·
            KangLang Elementary coastal-teal #1E5963.                            */

:root{
  --ink:#23262b;          /* 濃墨 solid ink — primary text & dark grounds */
  --ink-deep:#15171a;
  --ink-mid:#3b4046;
  --ink-soft:#5b6168;     /* secondary text */
  --seal:#b5392e;         /* 印泥 cinnabar seal red — accent */
  --seal-deep:#8e2b22;
  --seal-soft:#f6e9e6;
  --jade:#5d7d72;         /* 渲染 a quiet celadon, used sparingly */
  --jade-soft:#eaf0ed;
  --mist:#eef0f2;         /* 飛白 cool wash for soft sections */
  --mist2:#e4e7ea;
  --line:#e3e4e7;
  --paper:#fff;
  --max:1140px;
  --shadow:0 16px 44px -18px rgba(21,23,26,.34);
  --shadow-sm:0 4px 16px -6px rgba(21,23,26,.20);
}

*{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;}
body{
  font-family:'Lato','PingFang TC','Apple LiGothic Medium','Microsoft JhengHei',sans-serif;
  color:var(--ink);
  background:var(--paper);
  line-height:1.68;
  font-size:20px;                 /* mobile base — Luke's school-site rule */
  -webkit-font-smoothing:antialiased;
}
@media (min-width:880px){ body{font-size:22px;} }
img{max-width:100%;display:block;}
a{color:var(--seal-deep);text-decoration:none;transition:color .2s;}
a:hover{color:var(--seal);}
.wrap{max-width:var(--max);margin:0 auto;padding:0 24px;}
.en{font-family:'Lato',sans-serif;}
.zh{font-family:'PingFang TC','Apple LiGothic Medium','Microsoft JhengHei',sans-serif;}


/* ===== TOPBAR ===== */
.topbar{
  background:rgba(255,255,255,.94);
  border-bottom:1px solid var(--line);
  padding:13px 0;position:sticky;top:0;z-index:50;
  backdrop-filter:blur(8px);
}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:18px;}
.topbar-brand{display:flex;align-items:center;gap:13px;text-decoration:none;}
.topbar-seal{
  width:38px;height:38px;border-radius:7px;flex-shrink:0;
  background:var(--seal);color:#fff;
  display:flex;align-items:center;justify-content:center;
  font-family:'PingFang TC',serif;font-size:21px;font-weight:600;
  box-shadow:0 2px 8px -2px rgba(142,43,34,.5);
}
.topbar-name{
  font-family:'Playfair Display','PingFang TC',serif;
  font-size:18.5px;font-weight:600;color:var(--ink-deep);line-height:1.12;
}
.topbar-name small{
  display:block;font-family:'PingFang TC',sans-serif;
  font-size:12px;font-weight:500;color:var(--ink-soft);
  margin-top:2px;letter-spacing:.04em;
}
.topbar-nav{display:flex;gap:20px;flex-wrap:wrap;justify-content:flex-end;align-items:center;}
.topbar-nav a{color:var(--ink);font-size:14.5px;font-weight:600;letter-spacing:.03em;}
.topbar-nav a:hover{color:var(--seal);}
.topbar-nav a.is-active{color:var(--seal-deep);border-bottom:2px solid var(--seal);padding-bottom:2px;}


/* ===== HERO (hub) ===== */
.title{
  position:relative;color:#fff;text-align:center;
  padding:118px 0 104px;
  background:
    /* url("photos/hero-southern-branch.jpg") center 55%/cover no-repeat, */
    radial-gradient(circle at 78% 16%,rgba(181,57,46,.30),transparent 52%),
    radial-gradient(circle at 14% 88%,rgba(93,125,114,.26),transparent 55%),
    linear-gradient(135deg,#15171a 0%,#23262b 52%,#2f343a 100%);
  border-bottom:4px solid var(--seal);overflow:hidden;
}
.title::after{   /* a single ink brush-stroke, evoking the building's calligraphy */
  content:"";position:absolute;left:-6%;right:-6%;top:38%;height:130px;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.05) 18%,rgba(255,255,255,.09) 50%,rgba(255,255,255,.04) 82%,transparent);
  transform:rotate(-3deg);filter:blur(2px);pointer-events:none;
}
.title > .wrap{position:relative;z-index:1;}
.title__eyebrow{
  display:inline-block;font-size:13px;letter-spacing:.30em;
  color:rgba(245,206,198,.95);font-weight:700;text-transform:uppercase;margin-bottom:18px;
}
.title h1{
  font-family:'Playfair Display','PingFang TC',serif;
  font-size:clamp(40px,7vw,66px);line-height:1.04;font-weight:600;
  color:#fff;text-shadow:0 2px 18px rgba(0,0,0,.45);
}
.title .h1-zh{
  font-family:'PingFang TC','Apple LiGothic Medium',sans-serif;
  font-size:clamp(20px,2.6vw,27px);font-weight:500;letter-spacing:.10em;
  color:rgba(255,255,255,.92);margin-top:14px;text-shadow:0 1px 6px rgba(0,0,0,.4);
}
.title__divider{width:62px;height:2px;background:var(--seal);margin:26px auto 18px;border:0;}
.title__tagline{
  max-width:660px;margin:0 auto;
  font-family:'Playfair Display',serif;font-style:italic;font-size:22px;
  color:rgba(255,255,255,.95);line-height:1.55;
}
.title__tagline .tagline-zh{
  display:block;font-style:normal;font-family:'PingFang TC',sans-serif;
  font-size:16.5px;margin-top:10px;color:rgba(255,255,255,.8);letter-spacing:.06em;
}
.hero-cta{
  margin-top:34px;display:inline-flex;gap:14px;flex-wrap:wrap;justify-content:center;
}
.btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:14px 28px;border-radius:99px;font-weight:700;font-size:16px;letter-spacing:.03em;
  transition:transform .2s,background .2s,color .2s,border-color .2s;
}
.btn-primary{background:var(--seal);color:#fff;}
.btn-primary:hover{background:#fff;color:var(--seal-deep);transform:translateY(-2px);}
.btn-ghost{border:1.5px solid rgba(255,255,255,.55);color:#fff;}
.btn-ghost:hover{border-color:#fff;background:rgba(255,255,255,.1);color:#fff;transform:translateY(-2px);}


/* ===== Section base ===== */
section{padding:88px 0;}
.section-head{text-align:center;margin-bottom:54px;}
.section-head .eyebrow{
  display:inline-block;color:var(--seal-deep);font-size:14px;font-weight:700;
  letter-spacing:.22em;text-transform:uppercase;margin-bottom:14px;
}
.section-head h2{
  font-family:'Playfair Display','PingFang TC',serif;
  font-size:clamp(34px,5.5vw,52px);font-weight:600;color:var(--ink-deep);
  line-height:1.18;margin-bottom:8px;
}
.section-head .h2-zh{
  font-family:'PingFang TC','Apple LiGothic Medium',sans-serif;
  font-size:21px;color:var(--ink-soft);font-weight:500;letter-spacing:.04em;
}
.section-head .lede{color:var(--ink-soft);font-size:18.5px;max-width:680px;margin:18px auto 0;}
.alt{background:linear-gradient(180deg,#fff 0%,var(--mist) 100%);}


/* ===== About (hub) ===== */
.about-grid{display:grid;grid-template-columns:1.1fr 1fr;gap:52px;align-items:start;}
.about-text h3{
  font-family:'Playfair Display','PingFang TC',serif;
  font-size:32px;color:var(--ink-deep);line-height:1.25;margin-bottom:18px;font-weight:600;
}
.about-text .p-en{font-size:18.5px;color:var(--ink);margin-bottom:16px;line-height:1.72;}
.about-text .zh-block{
  font-family:'PingFang TC',sans-serif;font-size:17px;color:var(--ink-soft);
  line-height:1.85;border-left:3px solid var(--seal-soft);padding-left:18px;margin-top:8px;
}
.about-aside{
  background:var(--ink-deep);color:#fff;border-radius:20px;padding:38px 34px;
  box-shadow:var(--shadow);position:relative;overflow:hidden;
}
.about-aside::before{
  content:"印";position:absolute;right:-10px;bottom:-22px;
  font-family:'PingFang TC',serif;font-size:150px;color:rgba(181,57,46,.16);line-height:1;
}
.about-aside .label{
  font-size:12.5px;letter-spacing:.2em;text-transform:uppercase;
  color:rgba(245,206,198,.95);font-weight:700;margin-bottom:18px;position:relative;
}
.about-aside ul{list-style:none;display:grid;gap:16px;position:relative;}
.about-aside li{display:flex;gap:14px;align-items:flex-start;font-size:16.5px;line-height:1.5;}
.about-aside li .n{
  flex-shrink:0;width:30px;height:30px;border-radius:8px;background:var(--seal);
  display:flex;align-items:center;justify-content:center;font-weight:700;font-size:15px;
  font-family:'Playfair Display',serif;
}
.about-aside li .zh{display:block;font-size:14.5px;color:rgba(255,255,255,.7);margin-top:2px;}


/* ===== How it works (module strip) ===== */
.modules{display:grid;grid-template-columns:repeat(5,1fr);gap:16px;}
.module{
  background:#fff;border:1px solid var(--line);border-radius:14px;padding:24px 20px;
  border-top:4px solid var(--seal);text-align:center;
}
.module:nth-child(2){border-top-color:var(--ink);}
.module:nth-child(3){border-top-color:var(--jade);}
.module:nth-child(4){border-top-color:var(--seal-deep);}
.module:nth-child(5){border-top-color:var(--ink-mid);}
.module .step{
  font-family:'Playfair Display',serif;font-size:13px;font-weight:700;
  letter-spacing:.16em;text-transform:uppercase;color:var(--seal-deep);margin-bottom:10px;
}
.module .glyph{font-size:30px;margin-bottom:10px;line-height:1;}
.module h4{
  font-family:'Playfair Display','PingFang TC',serif;font-size:18px;color:var(--ink-deep);
  font-weight:600;line-height:1.25;margin-bottom:4px;
}
.module h4 .zh{display:block;font-family:'PingFang TC',sans-serif;font-size:14px;color:var(--ink-soft);font-weight:500;margin-top:3px;}


/* ===== Lesson map (hub) ===== */
.lesson-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px;}
.lesson-card{
  display:flex;gap:22px;align-items:flex-start;
  background:#fff;border:1px solid var(--line);border-radius:16px;
  padding:28px 28px;box-shadow:var(--shadow-sm);
  transition:transform .22s,box-shadow .22s,border-color .22s;
}
.lesson-card:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:var(--seal);}
.lesson-card .ln{
  flex-shrink:0;width:58px;height:58px;border-radius:13px;
  background:var(--mist);color:var(--ink-deep);
  display:flex;align-items:center;justify-content:center;
  font-family:'Playfair Display',serif;font-size:26px;font-weight:600;
}
.lesson-card.is-capstone .ln{background:var(--seal);color:#fff;}
.lesson-card h3{
  font-family:'Playfair Display','PingFang TC',serif;font-size:22px;color:var(--ink-deep);
  line-height:1.22;font-weight:600;margin-bottom:3px;
}
.lesson-card h3 .zh{display:block;font-family:'PingFang TC',sans-serif;font-size:15.5px;color:var(--ink-soft);font-weight:500;margin-top:3px;}
.lesson-card p{font-size:15.5px;color:var(--ink-soft);line-height:1.62;margin-top:10px;}
.lesson-card .gallery-tag{
  display:inline-block;margin-top:12px;font-size:12.5px;font-weight:700;letter-spacing:.06em;
  color:var(--seal-deep);background:var(--seal-soft);padding:4px 12px;border-radius:99px;
}


/* ===== PAGE HERO (lesson) ===== */
.page-hero{
  position:relative;color:#fff;
  padding:70px 0 60px;border-bottom:4px solid var(--seal);overflow:hidden;
  background:
    radial-gradient(circle at 82% 20%,rgba(181,57,46,.28),transparent 54%),
    linear-gradient(135deg,#15171a 0%,#23262b 60%,#2f343a 100%);
}
.page-hero.tone-jade{background:radial-gradient(circle at 82% 20%,rgba(93,125,114,.34),transparent 54%),linear-gradient(135deg,#15171a 0%,#23262b 60%,#2f343a 100%);}
.page-hero.tone-seal{background:radial-gradient(circle at 82% 20%,rgba(181,57,46,.40),transparent 54%),linear-gradient(135deg,#15171a 0%,#23262b 60%,#2f343a 100%);}
.page-hero > .wrap{position:relative;z-index:1;}
.page-hero .lesson-no{
  display:inline-block;font-family:'Playfair Display',serif;font-size:13px;
  letter-spacing:.24em;text-transform:uppercase;color:rgba(245,206,198,.95);
  font-weight:700;margin-bottom:12px;
}
.page-hero h1{
  font-family:'Playfair Display','PingFang TC',serif;
  font-size:clamp(34px,5.2vw,50px);font-weight:600;line-height:1.08;color:#fff;
}
.page-hero h1 .zh{
  display:block;font-family:'PingFang TC',sans-serif;font-size:clamp(18px,2.2vw,23px);
  font-weight:500;letter-spacing:.06em;color:rgba(255,255,255,.86);margin-top:10px;
}
.page-hero .tagline{
  margin-top:18px;max-width:680px;font-family:'Playfair Display',serif;font-style:italic;
  font-size:19px;color:rgba(255,255,255,.92);line-height:1.55;
}
.page-hero .tagline .zh{
  display:block;font-style:normal;font-family:'PingFang TC',sans-serif;font-size:15.5px;
  color:rgba(255,255,255,.76);margin-top:6px;letter-spacing:.05em;
}
.page-hero .gallery-pill{
  display:inline-block;margin-top:18px;font-size:13.5px;font-weight:600;letter-spacing:.04em;
  color:#fff;background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.25);
  padding:6px 16px;border-radius:99px;
}


/* ===== Lesson body shell ===== */
.lesson-body{padding:70px 0;}
.lesson-inner{max-width:820px;margin:0 auto;}
.block{margin-bottom:54px;}
.block-head{display:flex;align-items:baseline;gap:14px;margin-bottom:22px;}
.block-head .kicker{
  font-family:'Playfair Display',serif;font-size:13px;font-weight:700;letter-spacing:.18em;
  text-transform:uppercase;color:#fff;background:var(--seal);padding:5px 12px;border-radius:7px;
}
.block-head h2{
  font-family:'Playfair Display','PingFang TC',serif;font-size:28px;font-weight:600;
  color:var(--ink-deep);line-height:1.2;
}
.block-head h2 .zh{font-family:'PingFang TC',sans-serif;font-size:16px;color:var(--ink-soft);font-weight:500;margin-left:8px;}


/* ===== Reading ===== */
.reading p{font-size:18.5px;color:var(--ink);line-height:1.8;margin:14px 0;}
.reading .zh-gloss{
  font-family:'PingFang TC',sans-serif;font-size:16.5px;color:var(--ink-soft);
  line-height:1.85;border-left:3px solid var(--mist2);padding-left:16px;margin:8px 0 26px;
}
.reading .term{color:var(--seal-deep);font-weight:700;border-bottom:1.5px dotted var(--seal);}
.pull-quote{
  font-family:'Playfair Display',serif;font-style:italic;font-size:23px;color:var(--ink-deep);
  line-height:1.5;text-align:center;margin:38px 0;padding:26px 28px;
  background:var(--mist);border-radius:14px;border-left:4px solid var(--seal);
}
.pull-quote .zh{display:block;font-style:normal;font-family:'PingFang TC',sans-serif;font-size:16.5px;color:var(--ink-soft);margin-top:10px;}


/* ===== Speak button ===== */
.speak{
  display:inline-flex;align-items:center;justify-content:center;gap:5px;
  width:30px;height:30px;border-radius:8px;flex-shrink:0;
  background:var(--seal-soft);color:var(--seal-deep);border:1px solid transparent;
  cursor:pointer;font-size:15px;line-height:1;transition:background .15s,transform .1s;
  vertical-align:middle;
}
.speak:hover{background:var(--seal);color:#fff;}
.speak:active{transform:scale(.92);}
.speak.is-playing{background:var(--seal);color:#fff;animation:pulse 1s infinite;}
@keyframes pulse{0%,100%{box-shadow:0 0 0 0 rgba(181,57,46,.4);}50%{box-shadow:0 0 0 6px rgba(181,57,46,0);}}


/* ===== Vocabulary ===== */
.vocab-list{display:grid;gap:14px;}
.vocab{
  background:#fff;border:1px solid var(--line);border-radius:13px;padding:20px 22px;
  border-left:4px solid var(--seal);
}
.vocab .v-top{display:flex;align-items:center;gap:12px;flex-wrap:wrap;}
.vocab .word{font-family:'Playfair Display',serif;font-size:21px;font-weight:700;color:var(--ink-deep);}
.vocab .pos{font-style:italic;color:var(--jade);font-size:15px;font-weight:600;}
.vocab .def{font-size:16.5px;color:var(--ink);margin-top:8px;line-height:1.6;}
.vocab .zh{font-family:'PingFang TC',sans-serif;font-size:15.5px;color:var(--ink-soft);margin-top:4px;}
.vocab .eg{
  font-size:16px;color:var(--ink-mid);font-style:italic;margin-top:10px;line-height:1.6;
  display:flex;gap:8px;align-items:flex-start;
}
.vocab .eg .speak{margin-top:1px;}


/* ===== Phrase bank ===== */
.phrasebank{background:var(--mist);border-radius:16px;padding:30px 30px;}
.phrasebank .pb-intro{font-size:16px;color:var(--ink-soft);margin-bottom:18px;line-height:1.6;}
.phrase{
  background:#fff;border:1px solid var(--line);border-radius:11px;padding:15px 18px;
  margin-bottom:12px;display:flex;gap:12px;align-items:flex-start;
}
.phrase:last-child{margin-bottom:0;}
.phrase .p-text{flex:1;}
.phrase .p-en{font-size:17px;color:var(--ink-deep);line-height:1.5;font-weight:600;}
.phrase .p-zh{font-family:'PingFang TC',sans-serif;font-size:15px;color:var(--ink-soft);margin-top:4px;line-height:1.5;}


/* ===== Quiz ===== */
.quiz{background:var(--ink-deep);color:#fff;border-radius:18px;padding:38px 34px;}
.quiz .q-intro{color:rgba(255,255,255,.75);font-size:16px;margin-bottom:26px;line-height:1.6;}
.q-item{margin-bottom:30px;}
.q-item:last-of-type{margin-bottom:0;}
.q-item .q-stem{font-size:18px;font-weight:600;line-height:1.55;margin-bottom:6px;}
.q-item .q-stem .qn{color:var(--seal);font-family:'Playfair Display',serif;margin-right:8px;}
.q-item .q-zh{font-family:'PingFang TC',sans-serif;font-size:14.5px;color:rgba(255,255,255,.62);margin-bottom:14px;}
.q-opts{display:grid;gap:10px;}
.q-opt{
  text-align:left;width:100%;cursor:pointer;
  background:rgba(255,255,255,.06);border:1.5px solid rgba(255,255,255,.16);border-radius:10px;
  padding:13px 16px;color:#fff;font-size:16px;font-family:inherit;line-height:1.5;
  transition:background .15s,border-color .15s;
}
.q-opt:hover{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.4);}
.q-opt.correct{background:rgba(93,125,114,.35);border-color:var(--jade);}
.q-opt.wrong{background:rgba(181,57,46,.30);border-color:var(--seal);}
.q-opt.locked{cursor:default;opacity:.85;}
.q-opt .mark{font-weight:700;margin-right:6px;}
.q-explain{
  margin-top:12px;font-size:15px;line-height:1.6;color:rgba(255,255,255,.9);
  background:rgba(255,255,255,.07);border-left:3px solid var(--seal);
  border-radius:0 8px 8px 0;padding:12px 16px;display:none;
}
.q-explain.show{display:block;}
.q-explain .zh{font-family:'PingFang TC',sans-serif;display:block;color:rgba(255,255,255,.72);font-size:14px;margin-top:6px;}


/* ===== Your turn ===== */
.your-turn{
  background:linear-gradient(135deg,var(--seal-soft) 0%,#fff 100%);
  border:1px solid var(--seal-soft);border-left:5px solid var(--seal);
  border-radius:16px;padding:30px 32px;
}
.your-turn .yt-label{
  font-size:13px;font-weight:700;letter-spacing:.18em;text-transform:uppercase;
  color:var(--seal-deep);margin-bottom:12px;
}
.your-turn h3{font-family:'Playfair Display','PingFang TC',serif;font-size:24px;color:var(--ink-deep);font-weight:600;margin-bottom:10px;}
.your-turn p{font-size:17px;color:var(--ink);line-height:1.7;margin:8px 0;}
.your-turn p.zh{font-family:'PingFang TC',sans-serif;font-size:16px;color:var(--ink-soft);}
.your-turn ol{margin:12px 0 0 22px;font-size:16.5px;color:var(--ink);line-height:1.8;}


/* ===== Lesson nav ===== */
.lesson-nav{border-top:1px solid var(--line);background:#fff;padding:40px 0 70px;}
.lesson-nav .wrap{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;}
.nav-link{
  display:flex;flex-direction:column;gap:3px;max-width:46%;
  padding:16px 22px;border:1px solid var(--line);border-radius:12px;
  transition:border-color .2s,transform .2s;
}
.nav-link:hover{border-color:var(--seal);transform:translateY(-2px);}
.nav-link .dir{font-size:12.5px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--seal-deep);}
.nav-link .t{font-family:'Playfair Display',serif;font-size:18px;color:var(--ink-deep);font-weight:600;}
.nav-link.next{text-align:right;align-items:flex-end;margin-left:auto;}
.nav-link.hub{align-items:center;text-align:center;border-style:dashed;}


/* ===== Capstone rubric (L8) ===== */
.rubric{width:100%;border-collapse:collapse;margin-top:16px;font-size:16px;}
.rubric th,.rubric td{border:1px solid var(--line);padding:12px 14px;text-align:left;vertical-align:top;}
.rubric th{background:var(--ink-deep);color:#fff;font-size:14px;letter-spacing:.06em;font-weight:700;}
.rubric td.crit{font-weight:700;color:var(--ink-deep);font-family:'Playfair Display',serif;}
.rubric td.crit .zh{display:block;font-family:'PingFang TC',sans-serif;font-size:14px;color:var(--ink-soft);font-weight:500;margin-top:2px;}
.steps{counter-reset:step;display:grid;gap:14px;margin-top:8px;}
.step-row{display:flex;gap:16px;align-items:flex-start;}
.step-row .sn{
  flex-shrink:0;width:36px;height:36px;border-radius:9px;background:var(--seal);color:#fff;
  display:flex;align-items:center;justify-content:center;font-family:'Playfair Display',serif;font-weight:700;
}
.step-row .sc .en{font-size:17px;color:var(--ink-deep);font-weight:600;}
.step-row .sc .zh{font-family:'PingFang TC',sans-serif;font-size:15px;color:var(--ink-soft);margin-top:2px;}


/* ===== For-teachers note (hub) ===== */
.teacher-note{background:var(--ink-deep);color:#fff;}
.teacher-note .tn-grid{display:grid;grid-template-columns:1fr 1fr;gap:46px;align-items:center;}
.teacher-note h2{font-family:'Playfair Display',serif;font-size:38px;font-weight:600;line-height:1.16;color:#fff;}
.teacher-note h2 small{display:block;font-family:'PingFang TC',sans-serif;font-size:20px;font-weight:500;color:rgba(255,255,255,.74);margin-top:8px;}
.teacher-note p{font-size:17.5px;color:rgba(255,255,255,.86);line-height:1.75;margin-top:18px;}
.teacher-note p.zh{font-family:'PingFang TC',sans-serif;font-size:16.5px;color:rgba(255,255,255,.74);margin-top:12px;}
.teacher-note .flow{
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);border-radius:16px;
  padding:30px 32px;backdrop-filter:blur(8px);
}
.teacher-note .flow .label{font-size:12.5px;letter-spacing:.2em;text-transform:uppercase;color:#f5cec6;font-weight:700;margin-bottom:16px;}
.teacher-note .flow ol{list-style:none;counter-reset:f;display:grid;gap:14px;}
.teacher-note .flow li{display:flex;gap:14px;align-items:flex-start;font-size:16px;line-height:1.5;color:rgba(255,255,255,.92);}
.teacher-note .flow li::before{counter-increment:f;content:counter(f);flex-shrink:0;width:28px;height:28px;border-radius:7px;background:var(--seal);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;font-family:'Playfair Display',serif;font-size:14px;}


/* ===== Visit / contact ===== */
.visit{background:var(--ink-deep);color:#fff;padding:78px 0;}
.visit-grid{display:grid;grid-template-columns:1fr 1fr;gap:50px;align-items:start;}
.visit h2{font-family:'Playfair Display',serif;font-size:44px;font-weight:600;line-height:1.15;color:#fff;}
.visit h2 small{display:block;font-family:'PingFang TC',sans-serif;font-size:21px;font-weight:500;color:rgba(255,255,255,.74);margin-top:8px;}
.visit p{font-size:17.5px;color:rgba(255,255,255,.84);margin-top:18px;line-height:1.72;}
.visit p.zh{font-family:'PingFang TC',sans-serif;font-size:16.5px;margin-top:12px;}
.contact{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);border-radius:16px;padding:28px 30px;backdrop-filter:blur(8px);}
.contact dl{display:grid;gap:16px;}
.contact dt{font-size:12.5px;letter-spacing:.18em;text-transform:uppercase;color:#f5cec6;font-weight:700;margin-bottom:4px;}
.contact dd{font-size:17px;color:#fff;font-family:'PingFang TC',sans-serif;line-height:1.55;}
.contact dd a{color:#fff;border-bottom:1px solid rgba(255,255,255,.4);}
.contact dd a:hover{color:#f5cec6;border-color:#f5cec6;}


/* ===== Footer ===== */
footer{background:#0f1113;color:rgba(255,255,255,.6);padding:34px 0;font-size:15px;border-top:1px solid rgba(255,255,255,.08);}
footer .wrap{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:14px;}
footer .partner{color:#f5cec6;font-weight:600;}
footer .partner a{color:#f5cec6;}
footer .note{font-size:13px;color:rgba(255,255,255,.4);max-width:560px;}


/* ===== Workshop (For Teachers) page ===== */
.ws-lead{max-width:820px;margin:0 auto;}
.ws-lead p{font-size:19px;color:var(--ink);line-height:1.78;margin:14px 0;}
.ws-lead .zh-block{font-family:'PingFang TC',sans-serif;font-size:17px;color:var(--ink-soft);line-height:1.85;border-left:3px solid var(--seal-soft);padding-left:18px;margin:14px 0 28px;}

.flow-steps{max-width:880px;margin:0 auto;display:grid;gap:18px;}
.flow-step{display:flex;gap:22px;align-items:flex-start;background:#fff;border:1px solid var(--line);border-radius:14px;padding:24px 26px;box-shadow:var(--shadow-sm);}
.flow-step .sn{flex-shrink:0;width:48px;height:48px;border-radius:12px;background:var(--seal);color:#fff;display:flex;align-items:center;justify-content:center;font-family:'Playfair Display',serif;font-size:22px;font-weight:700;}
.flow-step h3{font-family:'Playfair Display','PingFang TC',serif;font-size:21px;color:var(--ink-deep);font-weight:600;line-height:1.25;}
.flow-step h3 .zh{font-family:'PingFang TC',sans-serif;font-size:15px;color:var(--ink-soft);font-weight:500;margin-left:8px;}
.flow-step p{font-size:16.5px;color:var(--ink);line-height:1.65;margin-top:8px;}
.flow-step p.zh{font-family:'PingFang TC',sans-serif;font-size:15.5px;color:var(--ink-soft);margin-top:4px;}

.prompt-card{max-width:880px;margin:18px auto;background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden;box-shadow:var(--shadow-sm);}
.prompt-card .pc-head{display:flex;align-items:center;gap:10px;background:var(--mist);padding:13px 20px;border-bottom:1px solid var(--line);}
.prompt-card .pc-tag{font-family:'Playfair Display',serif;font-size:12.5px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:#fff;background:var(--seal);padding:4px 11px;border-radius:6px;}
.prompt-card .pc-title{font-size:15.5px;font-weight:700;color:var(--ink-deep);}
.prompt-card .pc-title .zh{font-family:'PingFang TC',sans-serif;font-weight:500;color:var(--ink-soft);font-size:14px;margin-left:6px;}
.prompt-card pre{margin:0;padding:20px 22px;background:#fbfbfc;font-family:'SFMono-Regular',Menlo,Consolas,monospace;font-size:14.5px;line-height:1.72;color:var(--ink-mid);white-space:pre-wrap;word-break:break-word;}
.prompt-card pre .ph{color:var(--seal-deep);font-weight:700;background:var(--seal-soft);padding:0 4px;border-radius:4px;}

.checklist{max-width:820px;margin:0 auto;list-style:none;display:grid;gap:12px;}
.checklist li{display:flex;gap:14px;align-items:flex-start;background:var(--jade-soft);border:1px solid #d8e4df;border-radius:11px;padding:15px 18px;font-size:16.5px;color:var(--ink);line-height:1.55;}
.checklist li::before{content:"✓";flex-shrink:0;width:26px;height:26px;border-radius:7px;background:var(--jade);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:15px;}
.checklist li .zh{display:block;font-family:'PingFang TC',sans-serif;font-size:14.5px;color:var(--ink-soft);margin-top:3px;}
.ws-takeaway{max-width:760px;margin:0 auto;text-align:center;}
.ws-takeaway .big{font-family:'Playfair Display',serif;font-style:italic;font-size:25px;color:var(--ink-deep);line-height:1.5;}
.ws-takeaway .big .zh{display:block;font-style:normal;font-family:'PingFang TC',sans-serif;font-size:17px;color:var(--ink-soft);margin-top:10px;}
.ws-cta{margin-top:24px;}

/* CTA button used inside the dark teacher-note section on the hub */
.tn-btn{display:inline-flex;align-items:center;gap:8px;margin-top:22px;padding:13px 26px;border-radius:99px;background:var(--seal);color:#fff;font-weight:700;font-size:16px;letter-spacing:.03em;transition:background .2s,transform .2s;}
.tn-btn:hover{background:#fff;color:var(--seal-deep);transform:translateY(-2px);}


/* ===== Mobile ===== */
@media (max-width:880px){
  .title{padding:72px 0 58px;}
  section{padding:60px 0;}
  .about-grid{grid-template-columns:1fr;gap:34px;}
  .modules{grid-template-columns:1fr 1fr;}
  .lesson-grid{grid-template-columns:1fr;}
  .teacher-note .tn-grid{grid-template-columns:1fr;gap:30px;}
  .visit-grid{grid-template-columns:1fr;gap:30px;}
  .quiz,.phrasebank{padding:26px 20px;}
  .lesson-body{padding:50px 0;}
  .flow-step{gap:16px;padding:20px 20px;}
  .flow-step .sn{width:40px;height:40px;font-size:18px;}
  footer .wrap{flex-direction:column;text-align:center;}
}
@media (max-width:560px){
  .topbar-inner{flex-direction:column;align-items:flex-start;gap:10px;}
  .topbar-nav{gap:13px;justify-content:flex-start;}
  .topbar-nav a{font-size:13.5px;}
  .modules{grid-template-columns:1fr;}
  .lesson-card{flex-direction:column;gap:14px;}
  .nav-link{max-width:100%;}
}