/* 媧石皇家 demo 4 — Energy Consultation page (prefix c4-).
   Auravell references: /our-classes (dark photo hero with grid lines, class cards with dashed rule + dot pills),
   /events/yoga-practice (facts table + overview, sand form card), /plans (outlined tab buttons, ruled table). */

/* ---------- shared bits ---------- */
.c4-eyebrow { font: 400 1rem/1.4 var(--f-serif); letter-spacing: .08em; color: var(--muted); }
.c4-pill { display: inline-flex; align-items: center; gap: 10px; min-height: 36px; padding: 0 16px 0 14px; border-radius: 99px; background: var(--stone); font-size: .875rem; line-height: 1.2; letter-spacing: .04em; color: var(--ink); white-space: nowrap; }
.c4-pill::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--burgundy); flex: none; }
.c4-grid-lines { position: absolute; inset: 0; z-index: 1; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); pointer-events: none; }
.c4-grid-lines span { border-right: 1px solid rgba(255, 255, 255, .14); }
.c4-grid-lines span:first-child { border-left: 0; }
.c4-grid-lines--soft span { border-right-color: rgba(244, 237, 227, .08); }
.c4-tab { display: inline-flex; align-items: center; min-height: 44px; padding: 0 20px; border: 1px solid var(--burgundy); border-radius: var(--r); font: 400 1rem/1 var(--f-serif); letter-spacing: .06em; color: var(--ink); background: transparent; transition: background .35s var(--ease), color .35s var(--ease); }
.c4-tab:hover { background: var(--burgundy-tint); }
.c4-tab[aria-pressed="true"] { background: var(--burgundy); color: #fff; }
.c4-round { width: 52px; height: 52px; display: grid; place-items: center; border: 1px solid var(--burgundy); border-radius: var(--r); color: var(--burgundy); transition: background .35s var(--ease), color .35s var(--ease); }
.c4-round svg { width: 20px; height: 20px; }
.c4-round:hover { background: var(--burgundy); color: #fff; }
.c4-round:disabled { opacity: .35; pointer-events: none; }

/* Facts table (Auravell event detail) */
.c4-facts > div { display: flex; justify-content: space-between; align-items: baseline; gap: 24px; padding: 16px 0; border-bottom: 1px dashed #BDB5A8; }
.c4-facts dt { flex: none; font: 400 1.125rem/1.5 var(--f-serif); letter-spacing: .04em; }
.c4-facts dd { text-align: right; font-size: var(--fs-small); line-height: 1.7; color: var(--ink); }
.c4-facts dd a:hover { color: var(--burgundy); }
.c4-facts--sm > div { padding: 12px 0; }
.c4-facts--sm dt { font-size: 1rem; }

/* ---------- 1 · Hero ---------- */
.c4-hero { position: relative; min-height: max(640px, 100svh); display: grid; align-items: center; overflow: hidden; background: var(--dark); color: #fff; isolation: isolate; }
.c4-hero__media { position: absolute; inset: 0; z-index: -1; overflow: hidden; }
.c4-hero__media img { width: 100%; height: 100%; object-fit: cover; object-position: 50% 50%; }
.c4-hero__media::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(23, 24, 26, .62) 0%, rgba(23, 24, 26, .58) 45%, rgba(23, 24, 26, .82) 100%); }
.c4-hero__in { position: relative; z-index: 2; display: grid; justify-items: center; text-align: center; padding-block: calc(var(--hd-h) + 80px) 120px; }
.c4-hero__kicker { font: 400 1.0625rem/1.4 var(--f-zh-serif); letter-spacing: .3em; color: #F4EDE3; }
.c4-hero__h { margin-top: 28px; font-size: clamp(2.2rem, 5.2vw, 4.75rem); line-height: 1.28; letter-spacing: .06em; max-width: 16em; }
.c4-hero__h .accent { color: #E9C9C3; }
.c4-hero__lead { text-wrap: balance; margin-top: 28px; max-width: 30em; font-size: var(--fs-lead); line-height: 1.9; color: rgba(244, 237, 227, .86); }
.c4-hero__cta { margin-top: 44px; display: flex; flex-wrap: wrap; justify-content: center; gap: 12px; }
.c4-hero__down { position: absolute; z-index: 2; left: 50%; bottom: 32px; width: 1px; height: 64px; transform: translateX(-50%); background: rgba(255, 255, 255, .25); overflow: hidden; }
.c4-hero__down span { position: absolute; left: 0; top: 0; width: 1px; height: 24px; background: #fff; animation: c4-drip 2.2s var(--ease-io) infinite; }
@keyframes c4-drip { 0% { transform: translateY(-24px); } 100% { transform: translateY(64px); } }

/* ---------- 2 · Intro ---------- */
.c4-intro__grid { display: grid; grid-template-columns: minmax(0, 504fr) minmax(0, 832fr); gap: 40px clamp(40px, 5vw, 80px); align-items: start; }
.c4-intro__side { position: sticky; top: calc(var(--hd-h) + 40px); display: grid; gap: 28px; }
.c4-intro__side .c4-facts { border-top: 1px dashed #BDB5A8; }
.c4-intro__cta .btn { width: 100%; }
.c4-intro__fig { aspect-ratio: 4 / 3; border-radius: var(--r); overflow: hidden; background: var(--stone); min-height: 0; }
.c4-intro__fig img { width: 100%; height: 100%; object-fit: cover; }
.c4-intro__main > .h2 { margin-top: -8px; }
.c4-intro__prose { margin-top: 36px; display: grid; gap: 1.1em; color: var(--muted); max-width: 40em; }
.c4-intro__state { margin-top: 48px; font: 400 clamp(1.4rem, 2.3vw, 2.125rem)/1.6 var(--f-serif); letter-spacing: .04em; }
.c4-intro__sub { margin-top: 56px; padding-bottom: 20px; border-bottom: 1px dashed var(--burgundy); font: 400 1.25rem/1.5 var(--f-serif); color: var(--burgundy); }
.c4-consider { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 32px 40px; margin-top: 32px; }
.c4-consider h4 { font: 400 1.375rem/1.4 var(--f-serif); letter-spacing: .04em; }
.c4-consider p { margin-top: 8px; color: var(--muted); }

/* ---------- 3 · Timetable rows ---------- */
.c4-ex__lede { max-width: 34em; justify-self: end; }
.c4-tt { border-top: 1px solid var(--line); }
.c4-tt__row { display: grid; grid-template-columns: minmax(0, 300fr) minmax(0, 560fr) minmax(0, 420fr); gap: 32px clamp(32px, 4vw, 64px); align-items: start; padding: 40px 0 44px; border-bottom: 1px solid var(--line); }
.c4-tt__meta { display: grid; gap: 20px; justify-items: start; }
.c4-tt__n { font: italic 400 clamp(2.75rem, 4vw, 3.5rem)/1 var(--f-accent); letter-spacing: -.02em; color: var(--ink); transition: color .4s var(--ease); }
.c4-tt__row:hover .c4-tt__n { color: var(--burgundy); }
.c4-tt__pills { display: flex; flex-wrap: wrap; gap: 6px; }
.c4-tt__desc { display: grid; gap: 14px; padding-top: 6px; }
.c4-tt__desc .h3 { font-size: clamp(1.375rem, 1.9vw, 1.75rem); letter-spacing: .05em; }
.c4-tt__desc p { color: var(--muted); max-width: 30em; }
.c4-tt__img { aspect-ratio: 16 / 10; border-radius: var(--r); overflow: hidden; background: var(--stone); min-height: 0; }
.c4-tt__img img { width: 100%; height: 100%; object-fit: cover; transition: transform 1.1s var(--ease); }
.c4-tt__row:hover .c4-tt__img img { transform: scale(1.05); }
.c4-tt__row:nth-child(1) { border-bottom-color: var(--burgundy); }
.c4-ex__close { margin-top: 56px; text-align: center; font: 400 clamp(1.2rem, 1.8vw, 1.6rem)/1.7 var(--f-serif); letter-spacing: .05em; }

/* ---------- 4 · Interlude band ---------- */
.c4-band { position: relative; overflow: hidden; background: var(--dark); color: #fff; isolation: isolate; }
.c4-band__media { position: absolute; inset: 0; z-index: -1; overflow: hidden; }
.c4-band__media img { width: 100%; height: 100%; object-fit: cover; object-position: 50% 45%; }
.c4-band__media::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(23, 24, 26, .72), rgba(23, 24, 26, .64) 50%, rgba(23, 24, 26, .8)); }
.c4-band__in { position: relative; z-index: 2; display: grid; justify-items: center; text-align: center; gap: 32px; padding-block: clamp(120px, 14vw, 200px); }
.c4-band__q p { max-width: 21em; font: 400 clamp(1.5rem, 3vw, 2.75rem)/1.6 var(--f-zh-serif); letter-spacing: .06em; }
.c4-band__who { font-size: var(--fs-small); letter-spacing: .16em; color: rgba(244, 237, 227, .8); }

/* ---------- 5 · Quiz ---------- */
.c4-quiz__lede { max-width: 38em; }
.c4-quiz__grid { display: grid; grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr); gap: 24px; align-items: stretch; }
.c4-deck { position: relative; background: var(--sand); border-radius: var(--r); padding: clamp(28px, 4vw, 56px); min-height: 520px; display: flex; flex-direction: column; }
.c4-deck__nojs { color: var(--muted); }
.c4-q { display: flex; flex-direction: column; flex: 1; }
.c4-q__top { display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.c4-q__n { font: italic 400 1.125rem/1 var(--f-accent); color: var(--burgundy); }
.c4-q__n b { font: italic 400 2rem/1 var(--f-accent); margin-right: 4px; }
.c4-q__back { display: inline-flex; align-items: center; gap: 8px; min-height: 44px; padding: 0 4px; font-size: var(--fs-small); letter-spacing: .1em; color: var(--muted); }
.c4-q__back:hover { color: var(--burgundy); }
.c4-q__back svg { width: 16px; height: 16px; }
.c4-q__bar { margin-top: 20px; height: 1px; border-top: 1px dashed #BDB5A8; position: relative; }
.c4-q__bar span { position: absolute; left: 0; top: -1px; height: 2px; width: 100%; background: var(--burgundy); transform-origin: left; transition: transform .6s var(--ease); }
.c4-q__h { margin-top: 36px; font: 400 clamp(1.5rem, 2.4vw, 2.125rem)/1.45 var(--f-serif); letter-spacing: .04em; }
.c4-q__sub { margin-top: 10px; font-size: var(--fs-small); color: var(--muted); }
.c4-opts { margin-top: 32px; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
.c4-opt { display: flex; align-items: center; gap: 14px; min-height: 60px; padding: 12px 18px; text-align: left; border: 1px solid rgba(107, 29, 44, .45); border-radius: var(--r); background: var(--paper); font: 400 1.0625rem/1.45 var(--f-sans); letter-spacing: .03em; transition: background .3s var(--ease), color .3s var(--ease), border-color .3s var(--ease), transform .3s var(--ease); }
.c4-opt:hover { border-color: var(--burgundy); transform: translateY(-2px); }
.c4-opt__k { flex: none; width: 28px; height: 28px; display: grid; place-items: center; border-radius: 50%; border: 1px solid currentColor; font: italic 400 .9375rem/1 var(--f-accent); color: var(--burgundy); }
.c4-opt[aria-pressed="true"] { background: var(--burgundy); border-color: var(--burgundy); color: #fff; }
.c4-opt[aria-pressed="true"] .c4-opt__k { color: #fff; }
.c4-opts--col { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.c4-opt__sw { flex: none; width: 24px; height: 24px; border-radius: 50%; background: var(--sw); box-shadow: inset 0 0 0 1px rgba(0, 0, 0, .12); }
.c4-opt__sw.is-none { background: transparent; box-shadow: inset 0 0 0 1px currentColor; position: relative; }
.c4-opt__sw.is-none::after { content: ""; position: absolute; left: 3px; right: 3px; top: 50%; height: 1px; background: currentColor; transform: rotate(-45deg); }
.c4-q--done .c4-q__h .accent { color: var(--burgundy); }
.c4-q__acts { margin-top: auto; padding-top: 36px; display: flex; flex-wrap: wrap; align-items: center; gap: 12px 24px; }
.c4-q__summary { margin-top: 28px; display: flex; flex-wrap: wrap; gap: 6px; }

.c4-prof { background: var(--dark); color: var(--on-dark); border-radius: var(--r); padding: clamp(28px, 3vw, 40px); display: flex; flex-direction: column; position: relative; overflow: hidden; }
.c4-prof__head { display: flex; justify-content: space-between; align-items: baseline; gap: 12px; padding-bottom: 18px; border-bottom: 1px dashed rgba(244, 237, 227, .28); }
.c4-prof__h { font: 400 1.375rem/1.4 var(--f-serif); letter-spacing: .05em; }
.c4-prof__note { font-size: .8125rem; letter-spacing: .08em; color: var(--on-dark-muted); }
.c4-prof__list { display: grid; margin-top: 8px; }
.c4-prof__list li { display: grid; grid-template-columns: 6.5em minmax(0, 1fr); align-items: center; gap: 16px; padding: 14px 0; border-bottom: 1px solid rgba(244, 237, 227, .1); }
.c4-prof__name { font: 400 1rem/1.4 var(--f-zh-serif); letter-spacing: .08em; color: var(--on-dark-muted); transition: color .4s var(--ease); }
.c4-prof__meter { display: grid; grid-template-columns: repeat(8, minmax(0, 1fr)); gap: 4px; }
.c4-prof__meter i { height: 6px; border-radius: 3px; background: rgba(244, 237, 227, .12); transition: background .45s var(--ease); }
.c4-prof__meter i.is-on { background: #C79AA2; }
.c4-prof__list li.is-top .c4-prof__name { color: #fff; }
.c4-prof__list li.is-top .c4-prof__meter i.is-on { background: #E9C9C3; }
.c4-prof__foot { margin-top: auto; padding-top: 24px; font-size: .8125rem; line-height: 1.8; color: var(--on-dark-muted); }

/* results: Auravell class cards */
.c4-result { margin-top: clamp(56px, 6vw, 88px); }
.c4-result__head { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 16px 64px; align-items: end; margin-bottom: 40px; }
.c4-result__head p { color: var(--muted); }
.c4-result__list { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 40px 24px; }
.c4-card__a { display: grid; gap: 0; }
.c4-card__fig { aspect-ratio: 1 / 1.1; border-radius: var(--r); overflow: hidden; background: var(--stone); min-height: 0; }
.c4-card__fig img { width: 100%; height: 100%; object-fit: cover; transition: transform 1.1s var(--ease); }
.c4-card__a:hover .c4-card__fig img { transform: scale(1.05); }
.c4-card__top { display: flex; justify-content: space-between; align-items: baseline; gap: 16px; padding: 22px 0 18px; border-bottom: 1px dashed var(--burgundy); }
.c4-card__name { font: 400 1.5rem/1.35 var(--f-serif); letter-spacing: .04em; }
.c4-card__hit { flex: none; font: 400 1.125rem/1.35 var(--f-zh-serif); color: var(--burgundy); letter-spacing: .06em; }
.c4-card__lbl { margin-top: 18px; display: inline-flex; align-items: center; gap: 8px; font-size: .8125rem; letter-spacing: .16em; color: var(--burgundy); }
.c4-card__eff { margin-top: 8px; display: grid; gap: 4px; color: var(--muted); }
.c4-card__eff li::before { content: "・"; color: var(--burgundy); }
.c4-card__tags { margin-top: 18px; display: flex; flex-wrap: wrap; gap: 6px; }
.c4-card__tags .c4-pill.is-hit { background: var(--burgundy-tint); color: var(--burgundy); }
.c4-card__src { margin-top: 14px; font-size: .8125rem; color: var(--muted); }
.c4-card__more { margin-top: 16px; justify-self: start; }
.c4-result__foot { margin-top: 48px; padding-top: 28px; border-top: 1px dashed #BDB5A8; display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 20px 40px; }
.c4-result__foot p { max-width: 42em; font-size: var(--fs-small); color: var(--muted); }

/* ---------- 6 · Testimonials ---------- */
.c4-st__aside { display: grid; gap: 24px; justify-items: end; text-align: right; }
.c4-st__aside .muted { max-width: 26em; }
.c4-st__ctrl { display: flex; gap: 8px; }
.c4-st__view { overflow: hidden; }
.c4-st__track { display: flex; gap: 24px; overflow-x: auto; scroll-snap-type: x mandatory; scrollbar-width: none; overscroll-behavior-x: contain;
  padding-inline: max(var(--gutter), calc((100vw - 1440px) / 2 + var(--gutter))); scroll-padding-inline: max(var(--gutter), calc((100vw - 1440px) / 2 + var(--gutter))); padding-bottom: 8px; cursor: grab; }
.c4-st__track::-webkit-scrollbar { display: none; }
.c4-st__track.is-drag { cursor: grabbing; scroll-snap-type: none; user-select: none; }
.c4-st__card { flex: 0 0 clamp(290px, 34vw, 460px); scroll-snap-align: start; display: flex; flex-direction: column; gap: 28px; padding: clamp(28px, 3vw, 40px); border-radius: var(--r); background: var(--paper); transition: transform .5s var(--ease); }
.c4-st__card:nth-child(even) { transform: translateY(32px); }
.c4-st__top { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 10px; }
.c4-st__q { position: relative; padding-top: 36px; }
.c4-st__q::before { content: "“"; position: absolute; top: -14px; left: -4px; font: 400 4.5rem/1 var(--f-serif); color: var(--burgundy); opacity: .5; }
.c4-st__q p { font: 400 1.1875rem/1.85 var(--f-zh-serif); letter-spacing: .04em; }
.c4-st__who { margin-top: auto; display: flex; align-items: center; gap: 12px; padding-top: 20px; border-top: 1px dashed #BDB5A8; font-size: var(--fs-small); letter-spacing: .08em; }
.c4-st__who small { margin-left: auto; font-size: .8125rem; color: var(--muted); }
.c4-st__init { width: 40px; height: 40px; display: grid; place-items: center; border-radius: 50%; background: var(--burgundy); color: #fff; font: 400 1rem/1 var(--f-zh-serif); }
.c4-st__bar { margin-top: 64px; height: 1px; background: var(--line); position: relative; overflow: hidden; }
.c4-st__bar span { position: absolute; inset: 0; background: var(--burgundy); transform-origin: left; transform: scaleX(.2); transition: transform .3s linear; }

/* ---------- 7 · Google placeholder ---------- */
.c4-g__frame { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.2fr); gap: 40px 64px; align-items: center; padding: clamp(28px, 4vw, 56px); border: 1px dashed #BDB5A8; border-radius: var(--r); }
.c4-g__copy { display: grid; gap: 18px; justify-items: start; }
.c4-g__h { font-size: clamp(1.5rem, 2.2vw, 2rem); }
.c4-g__links { display: flex; flex-wrap: wrap; align-items: center; gap: 16px 24px; margin-top: 8px; }
.c4-g__slots { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; }
.c4-g__slots li { display: grid; gap: 10px; align-content: start; padding: 22px 18px; border-radius: var(--r); background: var(--sand); }
.c4-g__av { width: 36px; height: 36px; border-radius: 50%; background: var(--stone); margin-bottom: 6px; }
.c4-g__bar { height: 8px; border-radius: 4px; background: var(--stone); }
.c4-g__bar.w50 { width: 50%; } .c4-g__bar.w60 { width: 60%; } .c4-g__bar.w65 { width: 65%; } .c4-g__bar.w70 { width: 70%; } .c4-g__bar.w75 { width: 75%; } .c4-g__bar.w80 { width: 80%; } .c4-g__bar.w85 { width: 85%; } .c4-g__bar.w90 { width: 90%; } .c4-g__bar.w95 { width: 95%; }
.c4-g__slots em { margin-top: 8px; font-style: normal; font-size: .8125rem; color: var(--muted); }

/* ---------- 8 · FAQ ---------- */
.c4-faq__grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.5fr); gap: 48px clamp(40px, 6vw, 96px); align-items: start; }
.c4-faq__side { position: sticky; top: calc(var(--hd-h) + 40px); display: grid; gap: 28px; }
.c4-faq__chips { display: flex; flex-wrap: wrap; gap: 8px; }
.c4-faq__more { font-size: var(--fs-small); }
.c4-faq__list { border-top: 1px dashed #BDB5A8; }
.c4-faq__item { border-bottom: 1px dashed #BDB5A8; }
.c4-faq__item[hidden] { display: none; }
.c4-faq__item summary { list-style: none; display: grid; grid-template-columns: auto minmax(0, 1fr) auto; align-items: center; gap: 20px; padding: 24px 0; cursor: pointer; }
.c4-faq__item summary::-webkit-details-marker { display: none; }
.c4-faq__n { font: italic 400 1.125rem/1 var(--f-accent); color: var(--burgundy); min-width: 1.6em; }
.c4-faq__q { font: 400 clamp(1.125rem, 1.5vw, 1.3125rem)/1.55 var(--f-serif); letter-spacing: .04em; transition: color .3s; }
.c4-faq__item summary:hover .c4-faq__q { color: var(--burgundy); }
.c4-faq__ic { position: relative; width: 36px; height: 36px; border: 1px solid var(--line); border-radius: var(--r); transition: background .35s var(--ease), border-color .35s var(--ease); }
.c4-faq__ic::before, .c4-faq__ic::after { content: ""; position: absolute; left: 50%; top: 50%; width: 12px; height: 1px; margin-left: -6px; background: currentColor; transition: transform .4s var(--ease); }
.c4-faq__ic::after { transform: rotate(90deg); }
.c4-faq__item[open]:not(.is-closing) .c4-faq__ic { background: var(--burgundy); border-color: var(--burgundy); color: #fff; }
.c4-faq__item[open]:not(.is-closing) .c4-faq__ic::after { transform: rotate(0); }
.c4-faq__a { overflow: hidden; padding: 0 56px 28px calc(1.6em + 20px); display: grid; gap: .9em; color: var(--muted); font-size: var(--fs-small); line-height: 1.95; }

/* ---------- 9 · Booking ---------- */
.c4-book__lede { max-width: 34em; }
.c4-book__grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.35fr); gap: 24px; align-items: stretch; }
.c4-ticket { position: relative; overflow: hidden; isolation: isolate; display: grid; gap: 32px; align-content: start; padding: clamp(28px, 3.5vw, 48px); border-radius: var(--r); background: var(--burgundy-deep); color: var(--on-dark); }
.c4-ticket > :not(.c4-grid-lines) { position: relative; z-index: 2; }
.c4-ticket__steps { display: grid; }
.c4-ticket__steps li { display: grid; grid-template-columns: auto minmax(0, 1fr); gap: 18px; padding: 18px 0; border-bottom: 1px dashed rgba(244, 237, 227, .26); }
.c4-ticket__steps li:first-child { padding-top: 0; }
.c4-ticket__n { font: italic 400 1.75rem/1 var(--f-accent); color: #E9C9C3; }
.c4-ticket__steps h3 { font: 400 1.1875rem/1.45 var(--f-serif); letter-spacing: .05em; }
.c4-ticket__steps p { margin-top: 4px; font-size: var(--fs-small); color: var(--on-dark-muted); }
.c4-ticket__qr { display: flex; align-items: center; gap: 20px; }
.c4-ticket__qr img { width: 120px; height: 120px; padding: 8px; border-radius: var(--r); background: #fff; object-fit: contain; }
.c4-ticket__qr p { font-size: var(--fs-small); line-height: 1.8; color: var(--on-dark); letter-spacing: .08em; }
.c4-ticket__ch { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 8px; }
.c4-ticket__ch .btn--line { grid-column: 1 / -1; }
.c4-ticket__ch .btn { padding-inline: 14px; }

.c4-form { padding: clamp(28px, 3.5vw, 56px); border-radius: var(--r); background: var(--paper); display: flex; flex-direction: column; }
.c4-form__h { font: 400 clamp(1.4rem, 2vw, 1.75rem)/1.45 var(--f-serif); letter-spacing: .04em; }
.c4-form__note { margin-top: 12px; display: flex; flex-wrap: wrap; align-items: center; gap: 8px 12px; font-size: .875rem; color: var(--muted); }
.c4-form__grid { margin-top: 24px; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 4px 24px; }
.c4-field { display: grid; gap: 2px; min-width: 0; border: 0; margin: 0; padding: 14px 0 0; }
.c4-field--wide { grid-column: 1 / -1; }
.c4-field > span, .c4-field legend { padding: 0; font-size: .875rem; letter-spacing: .08em; color: var(--muted); }
.c4-field input, .c4-field select, .c4-field textarea { width: 100%; min-height: 48px; padding: 8px 2px; border: 0; border-bottom: 1px dashed #A99F92; border-radius: 0; background: transparent; font: 400 1rem/1.5 var(--f-sans); color: var(--ink); }
.c4-field select { appearance: none; -webkit-appearance: none; background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 8'%3E%3Cpath d='M1 1.5l5 5 5-5' fill='none' stroke='%232A2B2F' stroke-width='1.3'/%3E%3C/svg%3E") no-repeat right 4px center / 12px 8px; padding-right: 24px; }
.c4-field textarea { resize: vertical; min-height: 88px; }
.c4-field input:focus, .c4-field select:focus, .c4-field textarea:focus { outline: none; border-bottom: 1px solid var(--burgundy); }
.c4-field input::placeholder, .c4-field textarea::placeholder { color: #8A8C92; }
.c4-seg { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 10px; }
.c4-seg label { position: relative; }
.c4-seg input { position: absolute; opacity: 0; width: 1px; height: 1px; }
.c4-seg span { display: inline-flex; align-items: center; min-height: 44px; padding: 0 18px; border: 1px solid var(--burgundy); border-radius: var(--r); font: 400 .9375rem/1 var(--f-serif); letter-spacing: .05em; cursor: pointer; transition: background .3s, color .3s; }
.c4-seg input:checked + span { background: var(--burgundy); color: #fff; }
.c4-seg input:focus-visible + span { outline: 2px solid var(--burgundy); outline-offset: 3px; }
.c4-form__foot { margin-top: auto; padding-top: 32px; display: grid; gap: 12px; }
.c4-form__submit { width: 100%; }
.c4-form__err { min-height: 0; font-size: .875rem; color: var(--burgundy); }
.c4-form__err:empty { display: none; }
.c4-form__done { margin-top: 24px; padding: 24px; border-radius: var(--r); background: var(--sand); }
.c4-form__done-h { font: 400 1.0625rem/1.5 var(--f-serif); color: var(--burgundy); }
.c4-form__msg { margin: 12px 0 0; white-space: pre-wrap; font: 400 .9375rem/1.85 var(--f-sans); color: var(--ink); }
.c4-form__done-cta { margin-top: 20px; display: flex; flex-wrap: wrap; gap: 8px; }

/* ---------- 10 · Locations ---------- */
.c4-loc__grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 24px; }
.c4-loc__card { display: flex; flex-direction: column; border-radius: var(--r); background: var(--sand); overflow: hidden; }
.c4-loc__media { aspect-ratio: 16 / 10; overflow: hidden; background: var(--stone); min-height: 0; }
.c4-loc__media img { width: 100%; height: 100%; object-fit: cover; }
.c4-loc__mark { position: relative; overflow: hidden; isolation: isolate; aspect-ratio: 16 / 10; min-height: 0; display: grid; place-content: center; justify-items: center; gap: 12px; background: var(--burgundy-deep); color: var(--on-dark); }
.c4-loc__big { position: relative; z-index: 2; font: 400 clamp(3.5rem, 8vw, 7.5rem)/1 var(--f-zh-serif); letter-spacing: .2em; margin-right: -.2em; }
.c4-loc__mark small { position: relative; z-index: 2; font: 400 clamp(1rem, 1.3vw, 1.25rem)/1 var(--f-zh-serif); color: #E9C9C3; letter-spacing: .3em; }
.c4-loc__body { display: grid; gap: 20px; padding: clamp(24px, 3vw, 40px); flex: 1; align-content: start; }
.c4-loc__top { display: flex; justify-content: space-between; align-items: baseline; gap: 16px; flex-wrap: wrap; }
.c4-loc__name { font: 400 clamp(1.5rem, 2.2vw, 2rem)/1.3 var(--f-serif); letter-spacing: .06em; }
.c4-loc__tag { font: 400 1.0625rem/1.4 var(--f-zh-serif); color: var(--burgundy); letter-spacing: .08em; }
.c4-loc__body .c4-facts { border-top: 1px dashed #BDB5A8; }
.c4-loc__links { display: flex; flex-wrap: wrap; align-items: center; gap: 16px 28px; margin-top: 8px; }

/* ---------- Responsive ---------- */
@media (max-width: 1100px) {
  .c4-tt__row { grid-template-columns: minmax(0, 200px) minmax(0, 1fr); grid-template-areas: "meta desc" "meta img"; }
  .c4-tt__meta { grid-area: meta; } .c4-tt__desc { grid-area: desc; } .c4-tt__img { grid-area: img; max-width: 520px; }
  .c4-quiz__grid { grid-template-columns: minmax(0, 1fr); }
  .c4-prof__list { grid-template-columns: repeat(2, minmax(0, 1fr)); column-gap: 32px; }
  .c4-result__list { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .c4-g__frame { grid-template-columns: minmax(0, 1fr); }
}
@media (max-width: 991px) {
  .c4-intro__grid { grid-template-columns: minmax(0, 1fr); }
  .c4-intro__side { position: static; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); align-items: start; }
  .c4-intro__side .c4-eyebrow { grid-column: 1 / -1; }
  .c4-intro__side .c4-intro__cta { grid-column: 1; }
  .c4-intro__fig { grid-column: 2; grid-row: 2 / span 2; }
  .c4-intro__main > .h2 { margin-top: 0; }
  .c4-ex__lede { justify-self: start; }
  .c4-faq__grid { grid-template-columns: minmax(0, 1fr); }
  .c4-faq__side { position: static; }
  .c4-book__grid { grid-template-columns: minmax(0, 1fr); }
  .c4-result__head { grid-template-columns: minmax(0, 1fr); }
  .c4-st__aside { justify-items: start; text-align: left; }
  .c4-loc__grid { grid-template-columns: minmax(0, 1fr); }
}
@media (max-width: 640px) {
  .c4-hero { min-height: max(600px, 100svh); }
  .c4-hero__in { padding-block: calc(var(--hd-h) + 56px) 112px; }
  .c4-hero__kicker { font-size: .9375rem; letter-spacing: .22em; }
  .c4-hero__h { font-size: clamp(1.75rem, 7.6vw, 2.2rem); letter-spacing: .04em; }
  .c4-hero__media img { object-position: 12% 50%; }
  .c4-hero__cta { display: grid; width: 100%; max-width: 340px; }
  .c4-grid-lines { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .c4-grid-lines span:nth-child(n+2) { display: none; }
  .c4-intro__side { grid-template-columns: minmax(0, 1fr); }
  .c4-intro__side .c4-intro__cta, .c4-intro__fig { grid-column: auto; grid-row: auto; }
  .c4-facts > div { gap: 16px; }
  .c4-facts dt { font-size: 1rem; }
  .c4-consider { grid-template-columns: minmax(0, 1fr); gap: 24px; }
  .c4-tt__row { grid-template-columns: minmax(0, 1fr); grid-template-areas: "meta" "desc" "img"; gap: 18px; padding: 32px 0 36px; }
  .c4-tt__meta { grid-template-columns: auto minmax(0, 1fr); align-items: center; gap: 16px; }
  .c4-tt__n { font-size: 2.5rem; }
  .c4-tt__img { max-width: none; }
  .c4-deck { min-height: 0; padding: 24px 18px 28px; }
  .c4-q__h { margin-top: 28px; }
  .c4-opts { grid-template-columns: minmax(0, 1fr); margin-top: 24px; gap: 8px; }
  .c4-opts--col { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .c4-opt { min-height: 54px; padding: 10px 14px; font-size: 1rem; }
  .c4-prof { padding: 24px 18px; }
  .c4-prof__list { grid-template-columns: minmax(0, 1fr); }
  .c4-result__list { grid-template-columns: minmax(0, 1fr); gap: 48px; }
  .c4-card__fig { aspect-ratio: 4 / 3; }
  .c4-st__card { flex-basis: 84vw; }
  .c4-st__card:nth-child(even) { transform: none; }
  .c4-g__slots { grid-template-columns: minmax(0, 1fr); }
  .c4-g__slots li:nth-child(n+2) { display: none; }
  .c4-faq__item summary { gap: 12px; padding: 20px 0; }
  .c4-faq__a { padding: 0 0 24px; }
  .c4-form__grid { grid-template-columns: minmax(0, 1fr); }
  .c4-ticket__qr img { width: 104px; height: 104px; }
  .c4-ticket__ch { grid-template-columns: minmax(0, 1fr); }
  .c4-tab { padding: 0 16px; font-size: .9375rem; }
}
@media (prefers-reduced-motion: reduce) {
  .c4-hero__down span { animation: none; }
}