/* ============ 天機AI site.css v2 — 命書式構圖(2026-08-02 重構) ============
 * 構圖三決定(模型預設不會自己做,對應 LESSONS 08-02「AI 樣板臉」判準):
 * ① 首屏=命盤本人:lunar.js 真算的四柱直接當主視覺,右起直讀(容器 row-reverse,
 *    DOM 保持年月日時語意序);無行銷 split hero、無 AI 插畫主視覺。
 * ② 五行不畫進度條——命盤八個原字按五行歸位,缺者明示「缺」。
 * ③ 無水平導航列:左書脊(直排品牌+節氣+直達預約)+首屏目次;潤例文書式定價,
 *    無卡片、無 featured badge、無實心+ghost 雙 CTA。
 * 疊在 foundation.css → direction-tianji.css → components.css 之上。 */

/* — CJK 排字:漢字方塊字不吃負 tracking — */
.han { font-family: var(--font-display); letter-spacing: 0.02em;
  word-break: keep-all; line-break: strict; }
html { scroll-behavior: smooth; }
body { background: var(--bg); }

/* —— 書脊(桌機左側固定直排) —— */
.spine { position: fixed; top: 0; left: 0; bottom: 0; width: 76px; z-index: 20;
  display: flex; flex-direction: column; align-items: center; justify-content: space-between;
  gap: var(--space-4); padding: var(--space-4) 0 var(--space-6);
  background: var(--bg); border-right: 1px solid var(--border); }
.brand-v { display: flex; flex-direction: column; align-items: center; gap: var(--space-3); }
.seal { display: inline-flex; align-items: center; justify-content: center;
  width: 34px; height: 34px; border-radius: 7px; flex: none;
  background: var(--seal); color: #f4ecda; line-height: 1;
  font-family: var(--font-display); font-weight: 600; font-size: 1.05rem; }
.seal-lg { width: 52px; height: 52px; font-size: 1.6rem; border-radius: 10px; }
.seal-sm { width: 24px; height: 24px; font-size: 0.8rem; border-radius: 5px;
  vertical-align: -6px; margin-right: 6px; }
.bname { writing-mode: vertical-rl; letter-spacing: 0.35em; color: var(--ink);
  font-weight: 600; font-size: 1rem; }
.jieqi { writing-mode: vertical-rl; letter-spacing: 0.3em; color: var(--muted);
  font-size: var(--fs-caption); min-height: 1em; }
.spine-cta { writing-mode: vertical-rl; letter-spacing: 0.3em; font-size: var(--fs-small);
  color: var(--accent); border: 1px solid var(--border-strong); border-radius: 3px;
  padding: 14px 7px;
  transition: border-color var(--dur-fast) var(--ease-out), color var(--dur-fast) var(--ease-out); }
@media (hover: hover) { .spine-cta:hover { border-color: var(--primary); color: var(--primary-hover); } }
.page { margin-left: 76px; }

/* —— 首屏:命盤 hero —— */
.hero { position: relative; padding-block: clamp(36px, 5vw, 72px) var(--section-sm); }
.hero::before { content: ""; position: absolute; inset: 0; pointer-events: none;
  background: var(--grad-glow); }
.hero-grid { position: relative; display: grid;
  grid-template-columns: minmax(240px, 4fr) minmax(0, 7fr) auto;
  gap: clamp(24px, 3.5vw, 56px); align-items: start; }
.v-head { grid-column: 3; grid-row: 1; writing-mode: vertical-rl; margin: 0;
  font-family: var(--font-display); font-weight: 900;
  font-size: clamp(2rem, 2.6vw, 3.1rem); line-height: 1.4; letter-spacing: 0.14em;
  color: var(--ink); padding-top: var(--space-2); }
.hero-copy { grid-column: 1; grid-row: 1; padding-top: var(--space-4); }
.hero-copy .lead { margin-top: var(--space-4); }
.mulu { display: flex; flex-direction: column; margin-top: var(--space-8); }
.mulu a { display: flex; align-items: baseline; gap: var(--space-4);
  padding: var(--space-3) 2px; border-top: 1px solid var(--border);
  color: var(--muted); font-size: var(--fs-small); letter-spacing: 0.04em;
  transition: color var(--dur-fast) var(--ease-out), padding-left var(--dur-base) var(--ease-out); }
.mulu a:last-child { border-bottom: 1px solid var(--border); }
.mulu a .n { color: var(--accent); font-weight: 600; }
@media (hover: hover) { .mulu a:hover { color: var(--ink); padding-left: 8px; } }
.side-note { margin-top: var(--space-6); font-size: var(--fs-caption);
  line-height: 1.9; letter-spacing: 0.02em; }

/* 命盤面板:命書雙線框 */
.chart-panel { grid-column: 2; grid-row: 1; position: relative; min-width: 0;
  background: var(--surface); border: 1px solid var(--border-strong);
  padding: clamp(20px, 3vw, 40px); }
.chart-panel::before { content: ""; position: absolute; inset: 6px;
  border: 1px solid var(--border); pointer-events: none; }
.birth-bar { position: relative; display: flex; flex-wrap: wrap;
  gap: var(--space-4) var(--space-6); align-items: flex-end;
  padding-bottom: var(--space-6); border-bottom: 1px solid var(--border); }
.bf { display: flex; flex-direction: column; gap: 4px; border: 0; margin: 0; padding: 0; min-width: 0; }
.bf label, .bf legend { font-size: var(--fs-caption); color: var(--muted);
  letter-spacing: 0.14em; padding: 0; }
.birth-bar input[type="date"], .birth-bar select { background: transparent; border: 0;
  border-bottom: 1px solid var(--border-strong); border-radius: 0;
  color: var(--ink); padding: 6px 2px; color-scheme: dark; max-width: 100%;
  transition: border-color var(--dur-fast) var(--ease-out); }
.birth-bar input[type="date"]:focus, .birth-bar select:focus { border-bottom-color: var(--primary); }
.bf-gender { flex-direction: row; align-items: flex-end; gap: var(--space-4); }
.bf-gender legend { float: left; margin-right: var(--space-2); padding-bottom: 12px; }
.radio { display: inline-flex; align-items: center; gap: 6px; color: var(--text);
  font-size: var(--fs-small); padding-bottom: 8px; cursor: pointer; }
.radio input { accent-color: var(--primary); }
.btn-pai { min-height: 44px; padding: 10px 24px; margin-left: auto;
  background: transparent; border: 1px solid var(--primary); border-radius: 3px;
  color: var(--accent); font-family: var(--font-display); font-weight: 600;
  font-size: 1.0625rem; letter-spacing: 0.3em; text-indent: 0.3em; cursor: pointer;
  transition: background-color var(--dur-fast) var(--ease-out),
              color var(--dur-fast) var(--ease-out),
              transform var(--dur-fast) var(--ease-out); }
@media (hover: hover) { .btn-pai:hover { background-color: var(--primary); color: var(--on-primary); } }
.btn-pai:active { transform: scale(0.97); }
.btn-pai:disabled { opacity: 0.5; cursor: not-allowed; }
.btn-pai[aria-busy="true"] { cursor: progress; }

/* 四柱:右起直讀 */
.mingpan { padding-top: var(--space-4); }
.rtl-cap { text-align: right; font-size: var(--fs-caption); letter-spacing: 0.3em;
  margin-bottom: var(--space-2); }
.pillars { display: flex; flex-direction: row-reverse; gap: clamp(10px, 1.8vw, 28px); }
.pillar { flex: 1 1 0; min-width: 0; text-align: center;
  border-top: 2px solid var(--border-strong); padding-top: var(--space-3); }
.pillar .pl { font-size: var(--fs-caption); letter-spacing: 0.45em; text-indent: 0.45em;
  color: var(--muted); }
.pillar .gz { display: flex; flex-direction: column; margin: var(--space-2) 0;
  font-family: var(--font-display); font-weight: 900; color: var(--ink);
  font-size: clamp(2.5rem, 5.2vw, 4.5rem); line-height: 1.16; }
.pillar .wx { font-size: var(--fs-caption); color: var(--muted); letter-spacing: 0.2em; }
.pillar[data-day] { border-top-color: var(--primary); }
.pillar[data-day] .pl { color: var(--accent); }
.pillar[data-day] .gz span:first-child { color: var(--accent); }

/* 農曆行+五行歸位 */
.pai-meta { margin-top: var(--space-8); border-top: 1px solid var(--border);
  padding-top: var(--space-6); display: flex; flex-direction: column; gap: var(--space-6); }
.pai-lunar { color: var(--text); font-size: var(--fs-small); letter-spacing: 0.04em; }
.wx-place { display: grid; grid-template-columns: repeat(5, 1fr); }
.wx-col { text-align: center; border-left: 1px solid var(--border);
  padding: var(--space-2) var(--space-1); min-width: 0; }
.wx-col:first-child { border-left: 0; }
.wx-col .wl { display: block; font-size: var(--fs-caption); letter-spacing: 0.3em;
  text-indent: 0.3em; margin-bottom: var(--space-2); }
.wx-col .wchars { display: flex; flex-wrap: wrap; justify-content: center;
  gap: 2px 6px; font-family: var(--font-display); font-weight: 600;
  font-size: clamp(1.15rem, 1.6vw, 1.5rem); line-height: 1.3; color: var(--ink);
  min-height: 1.4em; }
.wx-col .wc { display: block; margin-top: var(--space-2);
  font-size: var(--fs-caption); color: var(--muted); }
.wx-col.none .wchars { color: var(--muted); font-weight: 500; }
.note { font-size: var(--fs-caption); line-height: 1.7; margin-top: var(--space-6); }

/* —— 章節通用 —— */
.section { padding-block: var(--section-y); }
.sec-head { max-width: 620px; }
.sec-head .h1 { margin-top: var(--space-3); }
.sec-head .lead { margin-top: var(--space-4); }

/* —— 詳批帶(墨山水=低調背景質感,非主角) —— */
.section-band { position: relative; padding-block: var(--section-y); overflow: hidden; }
.band-art { position: absolute; inset: 0; margin: 0; opacity: 0.13; pointer-events: none; }
.band-art img { width: 100%; height: 100%; object-fit: cover; }
.band-art::after { content: ""; position: absolute; inset: 0;
  background: linear-gradient(180deg, var(--bg), transparent 32%, transparent 68%, var(--bg)); }
.band-copy { position: relative; }
.steps { margin-top: var(--space-12); }
.step-row { display: grid; grid-template-columns: 88px minmax(0, 1fr);
  gap: var(--space-6); align-items: start; max-width: 720px;
  border-top: 1px solid var(--border); padding-block: var(--space-8); }
.step-row:nth-of-type(2) { margin-left: clamp(0px, 8vw, 110px); }
.step-row:nth-of-type(3) { margin-left: clamp(0px, 16vw, 220px); }
.step-n { font-family: var(--font-display); font-weight: 900; font-size: 2.4rem;
  line-height: 1; color: var(--accent); }

/* —— 潤例(文書式價目) —— */
.runli { list-style: none; margin: var(--space-12) 0 0; padding: 0; max-width: 860px; }
.runli li { display: flex; align-items: baseline; gap: var(--space-4);
  border-top: 1px solid var(--border); padding: var(--space-8) 0; flex-wrap: wrap; }
.runli li:last-child { border-bottom: 1px solid var(--border); }
.runli .rn { flex: 1 1 300px; min-width: 0; }
.runli .rn .body { margin-top: var(--space-3); font-size: var(--fs-small); max-width: 46ch; }
.rtag { font-size: var(--fs-caption); font-weight: 400; letter-spacing: 0.08em;
  margin-left: var(--space-3); }
.runli .dots { flex: 1 1 40px; min-width: 32px; align-self: center; height: 1px;
  border-bottom: 1px dotted var(--border-strong); }
.runli .price { font-family: var(--font-display); font-weight: 600;
  font-size: var(--fs-h2); color: var(--ink); line-height: 1; white-space: nowrap; }
.runli .price .cur { font-size: var(--fs-small); color: var(--muted);
  font-family: var(--font-body); margin-right: 4px; }
.runli .go { flex: none; font-size: var(--fs-small); color: var(--accent);
  border-bottom: 1px solid var(--accent); padding-bottom: 2px; letter-spacing: 0.2em;
  transition: color var(--dur-fast) var(--ease-out), border-color var(--dur-fast) var(--ease-out); }
@media (hover: hover) { .runli .go:hover { color: var(--primary-hover); border-color: var(--primary-hover); } }
.runli li.soon .rn h3 { color: var(--muted); }
.soon-tag { font-size: var(--fs-h4); color: var(--muted); font-weight: 500;
  letter-spacing: 0.2em; white-space: nowrap; }

/* —— 下單 —— */
.order-sec { padding-top: var(--section-sm); }
.order-grid { display: grid; grid-template-columns: minmax(240px, 5fr) minmax(0, 7fr);
  gap: clamp(32px, 5vw, 80px); align-items: start; }
.order-form { display: flex; flex-direction: column; gap: var(--space-6);
  background: var(--surface); border: 1px solid var(--border-strong);
  padding: clamp(20px, 3vw, 40px); position: relative; }
.order-form::before { content: ""; position: absolute; inset: 6px;
  border: 1px solid var(--border); pointer-events: none; }
.order-form > * { position: relative; }
.field { display: flex; flex-direction: column; gap: 4px; border: 0; margin: 0;
  padding: 0; min-width: 0; }
.field label, .field legend { font-size: var(--fs-caption); color: var(--muted);
  letter-spacing: 0.14em; padding: 0; }
.order-form input, .order-form select, .order-form textarea { background: transparent;
  border: 0; border-bottom: 1px solid var(--border-strong); border-radius: 0;
  color: var(--ink); padding: 8px 2px; color-scheme: dark; max-width: 100%;
  transition: border-color var(--dur-fast) var(--ease-out); }
.order-form textarea { border: 1px solid var(--border-strong); padding: 10px 12px;
  resize: vertical; line-height: 1.7; }
.order-form input:focus, .order-form select:focus, .order-form textarea:focus {
  border-color: var(--primary); }
.order-form ::placeholder { color: var(--muted); opacity: 0.7; }
.field-row { display: flex; gap: var(--space-6); flex-wrap: wrap; }
.field-row .field { flex: 1 1 130px; }
.field-row .field.grow { flex: 2 1 200px; }
.field-gender { flex-direction: row; align-items: flex-end; gap: var(--space-4); }
.field-gender legend { float: left; margin-right: var(--space-2); padding-bottom: 10px; }
.order-form .btn-pai { margin-left: 0; align-self: flex-start; }
.od-error { color: #d98a6a; font-size: var(--fs-small); }
.order-done { text-align: left; padding: var(--space-12) 0; display: flex;
  flex-direction: column; gap: var(--space-4); align-items: flex-start; }
.order-done[hidden], .order-form[hidden], .mingpan[hidden] { display: none; }

/* —— FAQ —— */
.faq-sec { padding-bottom: var(--section-y); }
.faq-list { margin-top: var(--space-8); max-width: 720px; }
.faq-list details { border-top: 1px solid var(--border); }
.faq-list details:last-child { border-bottom: 1px solid var(--border); }
.faq-list summary { cursor: pointer; list-style: none; position: relative;
  padding: var(--space-6) var(--space-8) var(--space-6) 0;
  font-family: var(--font-display); font-weight: 600; font-size: var(--fs-h4);
  color: var(--text); transition: color var(--dur-fast) var(--ease-out); }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after { content: "+"; position: absolute; right: 4px; top: 50%;
  transform: translateY(-50%); color: var(--accent); font-family: var(--font-body);
  font-weight: 400; font-size: 1.4rem; transition: transform var(--dur-base) var(--ease-out); }
.faq-list details[open] summary::after { transform: translateY(-50%) rotate(45deg); }
@media (hover: hover) { .faq-list summary:hover { color: var(--ink); } }
.faq-list details p { color: var(--muted); max-width: var(--measure);
  padding: 0 0 var(--space-6); line-height: 1.8; }

/* —— footer —— */
.site-foot { border-top: 1px solid var(--border);
  padding-block: var(--space-8) calc(var(--space-8) + env(safe-area-inset-bottom, 0px));
  color: var(--muted); font-size: var(--fs-small); display: flex;
  justify-content: space-between; align-items: center; flex-wrap: wrap; gap: var(--space-4); }
.foot-links { display: flex; gap: var(--space-6); }
.foot-links a { color: var(--muted); transition: color var(--dur-fast) var(--ease-out); }
@media (hover: hover) { .foot-links a:hover { color: var(--text); } }
.foot-legal { flex-basis: 100%; font-size: var(--fs-caption); }

/* —— touch 態即時回饋(:active 對應 hover;不殘留 sticky hover) —— */
.mulu a:active { color: var(--ink); padding-left: 8px; }
.runli .go:active { color: var(--primary-hover); border-color: var(--primary-hover); }
.spine-cta:active { border-color: var(--primary); color: var(--primary-hover); }
.faq-list summary:active { color: var(--ink); }
.foot-links a:active { color: var(--text); }

/* —— 響應式 —— */
@media (max-width: 960px) {
  .spine { position: sticky; top: 0; right: 0; bottom: auto; width: auto;
    flex-direction: row; justify-content: space-between; align-items: center;
    padding: 10px calc(var(--page-pad) + env(safe-area-inset-left, 0px)) 10px
             calc(var(--page-pad) + env(safe-area-inset-left, 0px));
    padding-right: calc(var(--page-pad) + env(safe-area-inset-right, 0px));
    border-right: 0;
    border-bottom: 1px solid var(--border); }
  .brand-v { flex-direction: row; gap: var(--space-3); }
  .bname, .jieqi, .spine-cta { writing-mode: horizontal-tb; }
  .bname { letter-spacing: 0.2em; }
  .jieqi { letter-spacing: 0.1em; }
  .spine-cta { padding: 8px 14px; letter-spacing: 0.2em; text-indent: 0.2em; }
  .page { margin-left: 0; }
  .hero-grid { grid-template-columns: minmax(0, 1fr) auto; }
  .hero-copy { grid-column: 1; grid-row: 1; }
  .v-head { grid-column: 2; grid-row: 1; font-size: clamp(1.7rem, 5.5vw, 2.2rem); }
  .chart-panel { grid-column: 1 / -1; grid-row: 2; }
  .step-row:nth-of-type(2), .step-row:nth-of-type(3) { margin-left: 0; }
  .order-grid { grid-template-columns: minmax(0, 1fr); }
}
@media (max-width: 560px) {
  .jieqi { display: none; }
  .birth-bar { gap: var(--space-4); }
  .btn-pai { margin-left: 0; flex: 1 1 100%; }
  .step-row { grid-template-columns: 56px minmax(0, 1fr); }
  .step-n { font-size: 1.9rem; }
  .runli .price { font-size: var(--fs-h3); }
  .runli .go { margin-left: auto; }
}