/* 178tw 應用平台 — Components · AI 宇宙風格 */

/* ================= 玻璃面板基底 =================
   註：backdrop-filter 僅用於少數固定元件（導覽艙、彈窗、手機列），
   內容區塊改用半透明色，避免大量合成層造成首次繪製閃爍。 */
.card, .app-card, .line-cta, .flow-step, .list-item, .faq details, .modal-box, .out {
  background: var(--panel);
  border: 1px solid var(--line);
}

/* ================= Topbar（懸浮艙） ================= */
.topbar { position: sticky; top: 0; z-index: 40; padding: 12px 0; }
.topbar-in {
  display: flex; align-items: center; gap: var(--s2); min-height: 62px;
  padding: 0 18px; border-radius: 20px;
  background: var(--panel);
  backdrop-filter: blur(22px) saturate(150%);
  -webkit-backdrop-filter: blur(22px) saturate(150%);
  border: 1px solid var(--line);
  box-shadow: 0 16px 44px rgba(0,0,0,.34), inset 0 1px 0 rgba(255,255,255,.07);
}

.brand { display: flex; align-items: center; gap: 11px; font-weight: 800; }
.brand .mark {
  width: 38px; height: 38px; border-radius: 13px; flex: none;
  background: var(--grad-cosmic); position: relative;
  display: grid; place-items: center; color: #fff; font-size: 13px; font-weight: 900;
  box-shadow: 0 8px 22px rgba(124,92,255,.5), inset 0 1px 0 rgba(255,255,255,.3);
}
.brand .mark::after {
  content: ""; position: absolute; inset: -5px; border-radius: 17px;
  border: 1px solid rgba(124,92,255,.4);
  animation: pulseRing 3.4s var(--ease) infinite;
}
@keyframes pulseRing { 0%,100% { opacity: .8; transform: scale(1); } 50% { opacity: .25; transform: scale(1.08); } }
.brand b { font-size: 15px; font-family: var(--font-display); letter-spacing: -.01em; }
.brand i { font-style: normal; color: var(--muted); font-weight: 500; font-size: 11.5px;
  display: block; margin-top: -3px; letter-spacing: .04em; }

.nav { display: flex; gap: 2px; margin-left: var(--s3); }
.nav a {
  position: relative; padding: 9px 15px; border-radius: var(--r-chip);
  font-size: var(--fs-sm); font-weight: 700; color: var(--muted); transition: .2s var(--ease);
}
.nav a:hover { color: var(--ink); }
.nav a.active {
  color: var(--ink);
  background: linear-gradient(135deg, rgba(124,92,255,.24), rgba(53,224,230,.14));
  box-shadow: inset 0 0 0 1px rgba(124,92,255,.42);
}

.topbar-right { margin-left: auto; display: flex; align-items: center; gap: 8px; }

.sel {
  background: var(--field); color: var(--ink); border: 1px solid var(--line);
  border-radius: var(--r-chip); padding: 9px 12px; font-size: var(--fs-sm);
  font-family: var(--font); cursor: pointer; transition: .2s var(--ease);
}
.sel:hover { border-color: var(--line-2); }

.icon-btn {
  width: 40px; height: 40px; border-radius: 50%; border: 1px solid var(--line);
  background: var(--field); color: var(--ink); cursor: pointer;
  display: grid; place-items: center; transition: .22s var(--ease);
}
.icon-btn:hover { border-color: var(--cyan); color: var(--cyan); box-shadow: var(--glow-c); transform: rotate(18deg); }

/* ================= Buttons ================= */
.btn {
  position: relative; display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  min-height: 46px; padding: 0 20px; border-radius: var(--r-btn);
  border: 1px solid var(--line); background: var(--panel-2); color: var(--ink);
  font-family: var(--font); font-size: var(--fs-sm); font-weight: 700; cursor: pointer;
  transition: .22s var(--ease); white-space: nowrap; overflow: hidden;
}
.btn:hover { transform: translateY(-2px); border-color: var(--line-2); }
.btn:active { transform: translateY(0); }

.btn.primary {
  background: var(--grad-cosmic); border-color: transparent; color: #fff;
  box-shadow: 0 14px 34px rgba(124,92,255,.42), inset 0 1px 0 rgba(255,255,255,.26);
}
.btn.primary::after {
  content: ""; position: absolute; top: 0; left: -70%; width: 45%; height: 100%;
  background: linear-gradient(100deg, transparent, rgba(255,255,255,.35), transparent);
  transform: skewX(-18deg); transition: left .55s var(--ease);
}
.btn.primary:hover::after { left: 130%; }
.btn.primary:hover { box-shadow: 0 18px 44px rgba(124,92,255,.55); }

.btn.gold { background: var(--grad-gold); border-color: transparent; color: #241a06;
  box-shadow: 0 12px 30px rgba(240,198,116,.32); }
.btn.line { background: linear-gradient(140deg, #0ae06a, #049c46); border-color: transparent; color: #fff;
  box-shadow: 0 12px 30px rgba(6,199,85,.34); }
.btn.line:hover { box-shadow: 0 16px 38px rgba(6,199,85,.48); }
.btn.ghost { background: transparent; }
.btn.sm { min-height: 38px; padding: 0 14px; font-size: var(--fs-xs); border-radius: var(--r-chip); }
.btn.block { width: 100%; }
.btn[disabled] { opacity: .45; cursor: not-allowed; transform: none; }

/* ================= Cards ================= */
.card { border-radius: var(--r-card); padding: var(--s3); box-shadow: var(--shadow); }
.card + .card { margin-top: var(--s2); }

/* ================= Hero（星系） ================= */
.hero {
  position: relative; padding: var(--s5) 0 var(--s4);
  display: grid; grid-template-columns: 1.15fr .85fr; gap: var(--s4); align-items: center;
}
.hero h1 { font-size: clamp(34px, 5vw, 60px); font-weight: 800; margin: 18px 0 16px; letter-spacing: -.03em; }
.hero h1 em {
  font-style: normal;
  background: var(--grad-text); -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero p.lead { font-size: clamp(15px, 1.5vw, 17.5px); color: var(--muted); max-width: 620px; }
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: var(--s3); }

.stats { display: flex; gap: 10px; flex-wrap: wrap; margin-top: var(--s4); }
.stat {
  padding: 12px 20px; border-radius: var(--r-in);
  background: var(--chip-bg); border: 1px solid var(--line);
}
.stat b {
  display: block; font-size: 26px; font-weight: 800; line-height: 1.1; font-family: var(--font-display);
  background: var(--grad-text); -webkit-background-clip: text; background-clip: text; color: transparent;
}
.stat span { font-size: var(--fs-xs); color: var(--muted); }

/* 軌道視覺 */
.orbit { position: relative; width: 100%; max-width: 420px; aspect-ratio: 1; margin-left: auto; justify-self: end; }
.orbit .ring { position: absolute; inset: 0; border-radius: 50%; border: 1px solid var(--line-2); }
.orbit .ring.r2 { inset: 13%; border-style: dashed; opacity: .8; }
.orbit .ring.r3 { inset: 27%; opacity: .55; }
.orbit .core {
  position: absolute; inset: 38%; border-radius: 50%;
  background: radial-gradient(circle at 34% 30%, #cfe3ff 0%, #7c5cff 42%, #2b1e6b 100%);
  box-shadow: 0 0 60px rgba(124,92,255,.65), 0 0 130px rgba(53,224,230,.28), inset -8px -10px 26px rgba(0,0,0,.45);
  animation: bob 9s ease-in-out infinite;
}
@keyframes bob { 0%,100% { transform: translateY(-6px); } 50% { transform: translateY(6px); } }
.orbit .spin { position: absolute; inset: 0; animation: spin 26s linear infinite; }
.orbit .spin.s2 { inset: 13%; animation-duration: 17s; animation-direction: reverse; }
.orbit .spin.s3 { inset: 27%; animation-duration: 34s; }
@keyframes spin { to { transform: rotate(360deg); } }
.orbit .dot {
  position: absolute; top: -6px; left: 50%; width: 12px; height: 12px; margin-left: -6px;
  border-radius: 50%; background: var(--cyan); box-shadow: 0 0 18px var(--cyan);
}
.orbit .spin.s2 .dot { background: var(--gold); box-shadow: 0 0 18px var(--gold); width: 9px; height: 9px; }
.orbit .spin.s3 .dot { background: var(--pink); box-shadow: 0 0 18px var(--pink); width: 8px; height: 8px; }
.orbit .halo {
  position: absolute; inset: -18%; border-radius: 50%; pointer-events: none;
  background: radial-gradient(circle, rgba(124,92,255,.18), transparent 62%);
}

/* ================= 應用卡片 ================= */
.app-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--s2); }
.app-card {
  position: relative; display: flex; flex-direction: column; gap: 12px;
  border-radius: var(--r-card); padding: var(--s3); cursor: pointer; text-align: left;
  color: inherit; font-family: var(--font); overflow: hidden;
  transition: .28s var(--ease); box-shadow: var(--shadow);
}
.app-card::before {
  content: ""; position: absolute; inset: 0; opacity: 0; transition: opacity .28s var(--ease);
  background: radial-gradient(420px 200px at 20% 0%, rgba(124,92,255,.20), transparent 70%);
}
.app-card:hover { transform: translateY(-6px); border-color: rgba(124,92,255,.5); box-shadow: var(--glow-v); }
.app-card:hover::before { opacity: 1; }
.app-card .ico {
  position: relative; width: 50px; height: 50px; border-radius: 16px; flex: none;
  background: var(--grad-cosmic); display: grid; place-items: center; color: #fff;
  box-shadow: 0 10px 26px rgba(124,92,255,.45), inset 0 1px 0 rgba(255,255,255,.25);
}
.app-card h3 { font-size: var(--fs-lg); position: relative; }
.app-card p { margin: 0; font-size: var(--fs-sm); color: var(--muted); line-height: 1.65; position: relative; }
.app-card .foot {
  margin-top: auto; padding-top: 14px; display: flex; align-items: center; gap: 8px;
  font-size: var(--fs-xs); color: var(--muted); position: relative; border-top: 1px solid var(--line);
}

.badge {
  display: inline-block; padding: 3px 10px; border-radius: var(--r-chip);
  font-size: 11px; font-weight: 700; background: var(--chip-bg); color: var(--muted);
  border: 1px solid var(--line);
}
.badge.gold {
  background: linear-gradient(135deg, rgba(240,198,116,.2), rgba(255,111,216,.14));
  color: var(--gold); border-color: rgba(240,198,116,.4);
}

/* ================= 情境入口 ================= */
.scen { display: flex; gap: 10px; flex-wrap: wrap; }
.scen button {
  border: 1px solid var(--line); background: var(--chip-bg); color: var(--ink);
  border-radius: var(--r-chip); padding: 11px 18px; cursor: pointer; font-weight: 700;
  font-size: var(--fs-sm); font-family: var(--font); transition: .22s var(--ease);
}
.scen button:hover { border-color: var(--cyan); color: var(--cyan); transform: translateY(-3px); box-shadow: var(--glow-c); }

/* ================= CTA 星雲橫幅 ================= */
.cta-banner {
  margin: var(--s4) 0; padding: var(--s4); border-radius: var(--r-card);
  background: linear-gradient(120deg, #1b1c56 0%, #3b2a86 48%, #10306b 100%);
  color: #fff; display: flex; align-items: center; gap: var(--s3); flex-wrap: wrap;
  box-shadow: 0 26px 70px rgba(60,40,160,.42); position: relative; overflow: hidden;
  border: 1px solid rgba(160,150,255,.25);
}
.cta-banner::before {
  content: ""; position: absolute; right: -80px; top: -110px; width: 340px; height: 340px;
  border-radius: 50%; background: radial-gradient(circle, rgba(53,224,230,.35), transparent 66%);
}
.cta-banner::after {
  content: ""; position: absolute; left: -60px; bottom: -140px; width: 300px; height: 300px;
  border-radius: 50%; background: radial-gradient(circle, rgba(255,111,216,.28), transparent 66%);
}
.cta-banner h3 { font-size: var(--fs-xl); position: relative; }
.cta-banner p { margin: 8px 0 0; color: #cfd6ff; font-size: var(--fs-sm); position: relative; max-width: 640px; }
.cta-banner .btn { margin-left: auto; position: relative; }

/* ================= LINE 教練 ================= */
.line-cta {
  margin: var(--s3) 0; padding: var(--s3) var(--s4); border-radius: var(--r-card);
  border-left: 3px solid #06C755;
  display: flex; align-items: center; gap: var(--s3); flex-wrap: wrap;
  box-shadow: var(--shadow); position: relative; overflow: hidden;
}
.line-cta::before {
  content: ""; position: absolute; left: -40px; top: -60px; width: 220px; height: 220px;
  border-radius: 50%; background: radial-gradient(circle, rgba(6,199,85,.20), transparent 68%);
}
.line-cta .ico {
  width: 56px; height: 56px; border-radius: 18px; flex: none; position: relative;
  background: linear-gradient(140deg, #0ae06a, #049c46);
  display: grid; place-items: center; color: #fff; box-shadow: 0 12px 30px rgba(6,199,85,.4);
}
.line-cta h3 { font-size: var(--fs-lg); position: relative; }
.line-cta p { margin: 8px 0 0; font-size: var(--fs-sm); color: var(--muted); max-width: 620px; position: relative; }
.line-cta .who { font-size: var(--fs-xs); color: var(--muted); margin-top: 10px; display: block; position: relative; }
.line-cta .btn { margin-left: auto; position: relative; }

/* ================= 工作台 ================= */
.wb { display: grid; grid-template-columns: minmax(0,1fr) 470px; gap: var(--s3); align-items: start; }
.wb-head { display: flex; align-items: center; gap: var(--s2); margin: var(--s3) 0; flex-wrap: wrap; }
.wb-head .ico {
  width: 52px; height: 52px; border-radius: 17px; background: var(--grad-cosmic);
  display: grid; place-items: center; color: #fff; flex: none;
  box-shadow: 0 12px 30px rgba(124,92,255,.45);
}
.wb-head h2 { font-size: var(--fs-xl); }
.wb-head .sub { font-size: var(--fs-sm); color: var(--muted); }

.progress {
  display: flex; align-items: center; gap: 9px; margin-left: auto;
  padding: 9px 16px; border-radius: var(--r-chip);
  background: var(--chip-bg); border: 1px solid var(--line);
}
.progress .dot { width: 9px; height: 9px; border-radius: 50%; background: var(--line-2); transition: .25s var(--ease); }
.progress .dot.on { background: var(--cyan); box-shadow: 0 0 12px var(--cyan); }
.progress .txt { font-size: var(--fs-xs); color: var(--muted); margin-left: 4px; font-weight: 700; }

.step { margin-bottom: var(--s2); border-radius: var(--r-card); position: relative; }
.step-head { display: flex; align-items: center; gap: 14px; margin-bottom: var(--s3); }
.step-no {
  width: 36px; height: 36px; border-radius: 12px; flex: none;
  background: linear-gradient(140deg, rgba(124,92,255,.28), rgba(53,224,230,.14));
  border: 1px solid rgba(124,92,255,.4);
  display: grid; place-items: center; font-size: var(--fs-xs); font-weight: 800;
  color: var(--violet-2); font-family: var(--font-display);
}
.step-head h3 { font-size: var(--fs-lg); }

.fields { display: grid; grid-template-columns: 1fr 1fr; gap: var(--s2); }
.field.full { grid-column: 1 / -1; }
.field label { display: block; font-size: var(--fs-xs); font-weight: 700; margin-bottom: 8px;
  color: var(--muted); letter-spacing: .04em; }
.field label .q {
  display: inline-grid; place-items: center; width: 16px; height: 16px; border-radius: 50%;
  background: var(--chip-bg); border: 1px solid var(--line); font-size: 10px; margin-left: 6px;
  cursor: help; color: var(--muted);
}
.field input[type=text], .field input[type=number], .field textarea, .field select {
  width: 100%; background: var(--field); color: var(--ink); border: 1px solid var(--line);
  border-radius: var(--r-in); padding: 13px 15px; font-family: var(--font); font-size: var(--fs-sm);
  transition: .2s var(--ease); min-height: 48px;
}
.field textarea { min-height: 100px; resize: vertical; line-height: 1.7; }
.field input:focus, .field textarea:focus {
  border-color: var(--violet); outline: none;
  box-shadow: 0 0 0 3px rgba(124,92,255,.25), var(--glow-c);
}
.field input::placeholder, .field textarea::placeholder { color: color-mix(in srgb, var(--muted) 62%, transparent); }

.check {
  display: flex; align-items: center; gap: 12px; padding: 13px 15px;
  background: var(--field); border: 1px solid var(--line); border-radius: var(--r-in);
  cursor: pointer; transition: .2s var(--ease);
}
.check:hover { border-color: var(--line-2); }
.check input { width: 18px; height: 18px; accent-color: var(--violet); cursor: pointer; }
.check span { font-size: var(--fs-sm); font-weight: 700; }

/* ================= 晶片 ================= */
.chips { display: flex; flex-wrap: wrap; gap: 10px; }
.chip {
  position: relative; text-align: left; cursor: pointer; font-family: var(--font);
  background: var(--chip-bg); border: 1px solid var(--line); color: var(--ink);
  border-radius: var(--r-in); padding: 13px 16px; min-width: 172px; flex: 1 1 196px;
  transition: .24s var(--ease);
}
.chip b { display: block; font-size: var(--fs-sm); font-weight: 800; }
.chip small { display: block; color: var(--muted); font-size: 11.5px; line-height: 1.55; margin-top: 4px; }
.chip:hover { transform: translateY(-3px); border-color: rgba(124,92,255,.5); }
.chip[aria-checked="true"] {
  border-color: var(--cyan);
  background: linear-gradient(135deg, rgba(53,224,230,.16), rgba(124,92,255,.14));
  box-shadow: 0 0 0 1px rgba(53,224,230,.5) inset, var(--glow-c);
}
.chip[aria-checked="true"]::after {
  content: "✓"; position: absolute; top: 10px; right: 12px; color: var(--cyan); font-weight: 900; font-size: 13px;
}

/* 風格卡 */
.style-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--s2); }
.style-card {
  cursor: pointer; text-align: left; font-family: var(--font); color: inherit;
  background: var(--panel); border: 1px solid var(--line); border-radius: var(--r-card);
  overflow: hidden; transition: .26s var(--ease); padding: 0;
}
.style-card:hover { transform: translateY(-6px); border-color: rgba(124,92,255,.5); box-shadow: var(--glow-v); }
.style-card .prev { height: 82px; position: relative; }
.style-card .prev::before {
  content: ""; position: absolute; left: 16px; bottom: 30px; width: 62%; height: 10px;
  border-radius: 5px; background: currentColor;
}
.style-card .prev::after {
  content: ""; position: absolute; left: 16px; bottom: 14px; width: 42%; height: 6px;
  border-radius: 4px; background: currentColor; opacity: .8;
}
.style-card .body { padding: 14px 16px 16px; }
.style-card b { font-size: var(--fs-sm); }
.style-card small { display: block; color: var(--muted); font-size: 11.5px; line-height: 1.6; margin-top: 5px; }
.style-card[aria-checked="true"] { border-color: var(--cyan); box-shadow: 0 0 0 1px var(--cyan) inset, var(--glow-c); }

/* ================= 輸出面板（星艦控制台） ================= */
.out { position: sticky; top: 96px; border-radius: var(--r-card); padding: var(--s3); box-shadow: var(--shadow); }
.out-head { display: flex; align-items: center; gap: 10px; margin-bottom: 14px; flex-wrap: wrap; }
.out-head h3 { font-size: var(--fs-md); display: flex; align-items: center; gap: 9px; }
.out-head h3::before {
  content: ""; width: 8px; height: 8px; border-radius: 50%; background: var(--ok);
  box-shadow: 0 0 12px var(--ok); animation: blink 2.4s ease-in-out infinite;
}
@keyframes blink { 0%,100% { opacity: 1; } 50% { opacity: .32; } }
.out-head .meta { margin-left: auto; font-size: var(--fs-xs); color: var(--muted);
  font-family: var(--mono); letter-spacing: .02em; }
.out pre {
  margin: 0; background: var(--code-bg); color: #dfe6ff;
  border: 1px solid var(--line); border-radius: var(--r-in);
  padding: 18px; font-family: var(--mono); font-size: 12.5px; line-height: 1.8;
  white-space: pre-wrap; word-break: break-word;
  min-height: 380px; max-height: 54vh; overflow: auto;
  box-shadow: inset 0 0 60px rgba(124,92,255,.10);
}
.out .row { display: flex; gap: 8px; margin-top: 14px; flex-wrap: wrap; }
.out .row .btn { flex: 1 1 auto; }
.out .row.tools { padding-top: 14px; border-top: 1px solid var(--line); }
.out .row.tools .btn { flex: 0 1 auto; }

.result-cta {
  margin-top: var(--s2); padding: 16px 18px; border-radius: var(--r-in);
  border: 1px solid rgba(240,198,116,.35);
  background: linear-gradient(120deg, rgba(240,198,116,.12), rgba(255,111,216,.06));
  display: flex; align-items: center; gap: 12px; flex-wrap: wrap;
}
.result-cta p { margin: 0; font-size: var(--fs-sm); }
.result-cta .btn { margin-left: auto; }

/* ================= 清單 / 空狀態 ================= */
.list { display: grid; gap: 10px; }
.list-item { display: flex; align-items: center; gap: 12px; padding: 16px 18px;
  border-radius: var(--r-in); transition: .2s var(--ease); }
.list-item:hover { border-color: var(--line-2); }
.list-item b { font-size: var(--fs-sm); }
.list-item .meta { font-size: var(--fs-xs); color: var(--muted); }
.list-item .sp { margin-left: auto; display: flex; gap: 8px; }
.empty { padding: var(--s5) var(--s3); text-align: center; color: var(--muted);
  border: 1px dashed var(--line-2); border-radius: var(--r-card); font-size: var(--fs-sm); }

/* ================= 使用流程 ================= */
.flow { display: grid; grid-template-columns: repeat(5, 1fr); gap: var(--s2); }
.flow-step { border-radius: var(--r-card); padding: var(--s3); position: relative; overflow: hidden; }
.flow-step::before {
  content: ""; position: absolute; left: 0; top: 0; width: 100%; height: 2px;
  background: var(--grad-plasma); opacity: .6;
}
.flow-step .n {
  font-size: 30px; font-weight: 800; line-height: 1; font-family: var(--font-display);
  background: var(--grad-text); -webkit-background-clip: text; background-clip: text; color: transparent;
}
.flow-step h4 { font-size: var(--fs-md); margin: 12px 0 8px; }
.flow-step p { margin: 0; font-size: var(--fs-sm); color: var(--muted); line-height: 1.7; }

.faq { display: grid; gap: 10px; }
.faq details { border-radius: var(--r-in); padding: 16px 18px; transition: .2s var(--ease); }
.faq details[open] { border-color: rgba(124,92,255,.4); }
.faq summary { cursor: pointer; font-weight: 700; font-size: var(--fs-sm); list-style: none; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::before { content: "▸ "; color: var(--cyan); }
.faq details[open] summary::before { content: "▾ "; }
.faq p { margin: 12px 0 0; font-size: var(--fs-sm); color: var(--muted); }

/* ================= Footer ================= */
.footer {
  margin-top: var(--s5); padding: var(--s5) 0 110px; position: relative;
  border-top: 1px solid var(--line);
  background: linear-gradient(180deg, transparent, rgba(10,13,32,.55));
}
[data-theme="light"] .footer { background: linear-gradient(180deg, transparent, rgba(255,255,255,.7)); }
.footer-in { display: flex; gap: var(--s4); flex-wrap: wrap; align-items: flex-start; }
.footer .links { display: flex; gap: 10px; flex-wrap: wrap; margin-left: auto; }
.footer .copy { font-size: var(--fs-xs); color: var(--muted); margin-top: var(--s3); }

/* ================= Toast ================= */
.toast {
  position: fixed; left: 50%; bottom: 104px; transform: translate(-50%, 22px);
  background: var(--panel-2); color: var(--ink);
  border: 1px solid rgba(53,224,230,.45); border-radius: var(--r-chip);
  padding: 13px 22px; font-size: var(--fs-sm); font-weight: 700; z-index: 90;
  box-shadow: var(--glow-c), var(--shadow); backdrop-filter: blur(18px);
  opacity: 0; pointer-events: none; transition: .26s var(--ease);
}
.toast.show { opacity: 1; transform: translate(-50%, 0); }

/* ================= Mobile bar ================= */
.mobilebar {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 60; display: none;
  gap: 8px; padding: 12px 14px calc(12px + env(safe-area-inset-bottom));
  background: var(--panel); backdrop-filter: blur(22px); border-top: 1px solid var(--line);
}
.mobilebar .btn { flex: 1; }

/* ================= Modal ================= */
.modal {
  position: fixed; inset: 0; z-index: 80; display: none;
  align-items: center; justify-content: center; padding: var(--s2);
  background: rgba(3,5,16,.78); backdrop-filter: blur(10px);
}
.modal.show { display: flex; animation: warp .24s var(--ease); }
.modal-box {
  width: 100%; max-width: 470px; border-radius: var(--r-card);
  padding: var(--s4) var(--s3) var(--s3); box-shadow: var(--shadow), var(--glow-v);
  text-align: center; position: relative; animation: pop .3s var(--ease);
}
@keyframes pop { from { transform: translateY(18px) scale(.96); opacity: 0; } to { transform: none; opacity: 1; } }
.modal-box .ico {
  width: 66px; height: 66px; border-radius: 22px; margin: 0 auto var(--s2);
  background: linear-gradient(140deg, #0ae06a, #049c46); display: grid; place-items: center; color: #fff;
  box-shadow: 0 16px 40px rgba(6,199,85,.42);
}
.modal-box h3 { font-size: var(--fs-xl); margin-bottom: 12px; }
.modal-box p { font-size: var(--fs-sm); color: var(--muted); line-height: 1.75; }
.modal-box .who { font-weight: 800; color: var(--cyan); font-size: var(--fs-sm); margin-bottom: 6px; letter-spacing: .06em; }
.modal-box .acts { display: grid; gap: 8px; margin-top: var(--s3); }
.modal-close {
  position: absolute; top: 12px; right: 12px; width: 36px; height: 36px;
  border-radius: 50%; border: 1px solid var(--line); background: transparent;
  color: var(--muted); cursor: pointer; font-size: 17px; line-height: 1; transition: .2s var(--ease);
}
.modal-close:hover { background: var(--panel-2); color: var(--ink); transform: rotate(90deg); }

/* ================= 淺色（星晝）微調 ================= */
[data-theme="light"] .kicker { color: #4b3bb8; }
[data-theme="light"] .stat b,
[data-theme="light"] .flow-step .n,
[data-theme="light"] .hero h1 em {
  background: linear-gradient(100deg, #1f7d95 0%, #5b3fd6 45%, #a06a12 95%);
  -webkit-background-clip: text; background-clip: text;
}
[data-theme="light"] .step-no { color: #5b3fd6; }
[data-theme="light"] .progress .dot.on { background: #17b4bb; box-shadow: 0 0 10px rgba(23,180,187,.6); }
[data-theme="light"] .chip[aria-checked="true"]::after,
[data-theme="light"] .faq summary::before { color: #10868c; }
[data-theme="light"] .modal-box .who { color: #10868c; }
[data-theme="light"] .out-head h3::before { background: #12a86e; box-shadow: 0 0 10px rgba(18,168,110,.6); }
[data-theme="light"] .chip[aria-checked="true"],
[data-theme="light"] .style-card[aria-checked="true"] { border-color: #17b4bb; }

/* ================= RWD ================= */
@media (max-width: 1180px) {
  .app-grid { grid-template-columns: repeat(2, 1fr); }
  .style-grid { grid-template-columns: repeat(3, 1fr); }
  .flow { grid-template-columns: repeat(3, 1fr); }
  .wb { grid-template-columns: minmax(0,1fr) 400px; }
}
@media (max-width: 960px) {
  .hero { grid-template-columns: 1fr; }
  .orbit { max-width: 300px; margin: 0 auto; justify-self: center; }
  .wb { grid-template-columns: 1fr; }
  .out { position: static; }
  .out pre { min-height: 260px; max-height: none; }
  .topbar-in { min-height: auto; padding: 12px 14px; flex-wrap: wrap; row-gap: 10px; }
  .topbar-right { order: 2; margin-left: auto; }
  .nav { order: 3; width: 100%; margin-left: 0; overflow-x: auto; }
  .nav a { white-space: nowrap; }
  .flow { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
  .app-grid, .style-grid, .flow { grid-template-columns: 1fr; }
  .fields { grid-template-columns: 1fr; }
  .chip { min-width: 100%; }
  .mobilebar { display: flex; }
  .hero { padding: var(--s4) 0 var(--s3); }
  .cta-banner, .line-cta { padding: var(--s3); }
  .cta-banner .btn, .line-cta .btn { margin-left: 0; width: 100%; }
  .brand i { display: none; }
  .orbit { max-width: 230px; }
  .progress { margin-left: 0; }
}