/* ============================================================
 * KINGSMEN DIGITAL —— 黑白風格樣式
 * ============================================================ */
:root {
  --black: #000;
  --ink: #1d1d1f;
  --gray-1: #f5f5f7;
  --gray-2: #e8e8ed;
  --gray-3: #d2d2d7;
  --gray-4: #86868b;
  --gray-5: #6e6e73;
  --white: #fff;
  --radius: 18px;
  --font: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Helvetica Neue", "PingFang HK", "PingFang TC", "Microsoft JhengHei", "Noto Sans TC", "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
  --header-h: 64px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-padding-top: var(--header-h); -webkit-text-size-adjust: 100%; }
body { font-family: var(--font); color: var(--ink); background: var(--white); line-height: 1.6; -webkit-font-smoothing: antialiased; }
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
input, textarea { font: inherit; color: inherit; }
[hidden] { display: none !important; }

.container { width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.narrow { max-width: 820px; }
.center { text-align: center; }
.muted { color: var(--gray-5); }
.muted-light { color: #a1a1a6; }

/* ---------------- Header ---------------- */
.header { position: sticky; top: 0; z-index: 50; background: rgba(255, 255, 255, .86); backdrop-filter: saturate(180%) blur(20px); -webkit-backdrop-filter: saturate(180%) blur(20px); border-bottom: 1px solid var(--gray-2); }
.header-inner { height: var(--header-h); display: flex; align-items: center; gap: 32px; }

.logo { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.logo-mark { width: 36px; height: 36px; border-radius: 9px; background: var(--black); color: var(--white); display: grid; place-items: center; font-family: Georgia, "Times New Roman", serif; font-weight: 700; font-size: 21px; }
.logo-text { display: flex; flex-direction: column; line-height: 1.05; }
.logo-text strong { font-size: 16px; letter-spacing: .18em; font-weight: 700; }
.logo-text small { font-size: 9px; letter-spacing: .26em; color: var(--gray-5); margin-top: 3px; }
.logo-light .logo-mark { background: var(--white); color: var(--black); }
.logo-light .logo-text small { color: #a1a1a6; }

.nav { display: flex; gap: 28px; margin-left: auto; }
.nav a { font-size: 14px; color: var(--ink); opacity: .8; transition: opacity .2s; position: relative; }
.nav a:hover, .nav a.active { opacity: 1; }
.nav a.active::after { content: ""; position: absolute; left: 0; right: 0; bottom: -6px; height: 1.5px; background: var(--black); }

.header-tools { display: flex; align-items: center; gap: 14px; }
.lang-switch { display: flex; border: 1px solid var(--gray-3); border-radius: 999px; padding: 2px; }
.lang-switch button { font-size: 12px; padding: 3px 9px; border-radius: 999px; color: var(--gray-5); }
.lang-switch button.active { background: var(--black); color: var(--white); }
.cart-btn { position: relative; display: grid; place-items: center; width: 36px; height: 36px; }
.badge { position: absolute; top: 0; right: -2px; min-width: 18px; height: 18px; padding: 0 5px; border-radius: 999px; background: var(--black); color: var(--white); font-size: 11px; font-weight: 600; display: grid; place-items: center; }
.menu-btn { display: none; width: 36px; height: 36px; position: relative; }
.menu-btn span { position: absolute; left: 9px; right: 9px; height: 1.5px; background: var(--ink); transition: transform .25s; }
.menu-btn span:first-child { top: 14px; }
.menu-btn span:last-child { top: 21px; }
.menu-open .menu-btn span:first-child { transform: translateY(3.5px) rotate(45deg); }
.menu-open .menu-btn span:last-child { transform: translateY(-3.5px) rotate(-45deg); }

/* ---------------- Buttons ---------------- */
.btn { display: inline-flex; align-items: center; justify-content: center; padding: 12px 26px; border-radius: 999px; font-size: 15px; font-weight: 500; border: 1.5px solid transparent; transition: all .2s; white-space: nowrap; }
.btn-dark { background: var(--black); color: var(--white); }
.btn-dark:hover { background: #333; }
.btn-dark.done { background: #333; }
.btn-light { background: var(--white); color: var(--black); }
.btn-light:hover { background: var(--gray-2); }
.btn-outline { border-color: var(--black); color: var(--black); }
.btn-outline:hover { background: var(--black); color: var(--white); }
.btn-outline-light { border-color: var(--white); color: var(--white); }
.btn-outline-light:hover { background: var(--white); color: var(--black); }
.btn.full { width: 100%; }
.btn-row { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 28px; }
.btn-row.center { justify-content: center; }
.btn-col { display: flex; flex-direction: column; gap: 10px; margin-top: 28px; }
.link { font-size: 15px; border-bottom: 1px solid currentColor; padding-bottom: 1px; }
.link-btn { font-size: 13px; color: var(--gray-5); text-decoration: underline; }

/* ---------------- Hero ---------------- */
.hero { background: var(--black); color: var(--white); padding: 120px 0 130px; overflow: hidden; position: relative; }
.hero::after { content: "K"; position: absolute; right: -40px; bottom: -150px; font-family: Georgia, serif; font-weight: 700; font-size: 560px; line-height: 1; color: rgba(255, 255, 255, .05); pointer-events: none; }
.hero-inner { position: relative; z-index: 1; }
.eyebrow { font-size: 13px; letter-spacing: .2em; text-transform: uppercase; color: #a1a1a6; margin-bottom: 18px; }
.eyebrow.dark { color: var(--gray-5); margin-bottom: 8px; }
.hero h1 { font-size: clamp(44px, 7vw, 84px); line-height: 1.05; font-weight: 700; letter-spacing: -.02em; }
.hero-sub { font-size: clamp(17px, 2vw, 21px); color: #d2d2d7; max-width: 620px; margin-top: 24px; }

/* ---------------- USP ---------------- */
.usp { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; border-bottom: 1px solid var(--gray-2); }
.usp-item { padding: 40px 24px 40px 0; }
.usp-item + .usp-item { padding-left: 24px; border-left: 1px solid var(--gray-2); }
.usp-num { font-size: 12px; color: var(--gray-4); letter-spacing: .1em; }
.usp-item h3 { font-size: 18px; margin: 8px 0 6px; }
.usp-item p { font-size: 14px; color: var(--gray-5); }

/* ---------------- Sections ---------------- */
.section { padding-top: 88px; padding-bottom: 88px; }
.section-gray { background: var(--gray-1); }
.section-dark { background: var(--black); color: var(--white); }
.section-title { font-size: clamp(28px, 4vw, 40px); font-weight: 700; letter-spacing: -.01em; margin-bottom: 36px; }
.page-title { font-size: clamp(32px, 5vw, 48px); font-weight: 700; letter-spacing: -.01em; margin-bottom: 12px; }
.page-title small { font-size: 18px; font-weight: 400; color: var(--gray-5); }
.lead { font-size: 19px; color: var(--gray-5); margin-bottom: 16px; }
.empty { color: var(--gray-5); padding: 40px 0; }

/* Categories */
.cat-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 16px; }
.cat { background: var(--gray-1); border-radius: var(--radius); padding: 24px 16px 20px; text-align: center; transition: transform .25s, background .25s; }
.cat:hover { transform: translateY(-4px); background: var(--gray-2); }
.cat-art { width: 96px; margin: 0 auto 10px; }
.cat span { font-weight: 600; font-size: 15px; }

/* Tabs */
.tabs { display: flex; gap: 8px; flex-wrap: wrap; margin: 24px 0 36px; }
.tab { padding: 8px 18px; border-radius: 999px; border: 1px solid var(--gray-3); font-size: 14px; transition: all .2s; }
.tab:hover { border-color: var(--black); }
.tab.active { background: var(--black); border-color: var(--black); color: var(--white); }

/* Product grid */
.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); gap: 20px; }
.card { background: var(--gray-1); border-radius: var(--radius); overflow: hidden; display: flex; flex-direction: column; transition: transform .25s, box-shadow .25s; }
.card:hover { transform: translateY(-4px); box-shadow: 0 14px 36px rgba(0, 0, 0, .08); }
.card-img { aspect-ratio: 1 / 1; display: grid; place-items: center; padding: 28px; }
.card-img img { width: 100%; height: 100%; object-fit: contain; }
.card-body { padding: 0 22px 24px; }
.card-body h3 { font-size: 18px; font-weight: 600; }
.swatches { display: flex; gap: 6px; margin: 10px 0 8px; }
.swatches span { width: 12px; height: 12px; border-radius: 50%; border: 1px solid rgba(0, 0, 0, .18); }
.price { font-size: 14px; color: var(--gray-5); }
.price.big { font-size: 17px; color: var(--ink); font-weight: 500; margin-top: 12px; }
.center .link, p.center { margin-top: 36px; }

.art { width: 100%; height: 100%; display: grid; place-items: center; position: relative; }
.art svg { width: 100%; max-width: 240px; }
.art-label { position: absolute; bottom: 12px; right: 14px; font-size: 11px; color: var(--gray-4); letter-spacing: .05em; }

/* Steps */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.step { background: var(--white); border-radius: var(--radius); padding: 28px 24px; }
.step-num { width: 34px; height: 34px; border-radius: 50%; background: var(--black); color: var(--white); display: grid; place-items: center; font-weight: 600; font-size: 15px; }
.step h3 { font-size: 18px; margin: 16px 0 6px; }
.step p { font-size: 14px; color: var(--gray-5); }

/* Wholesale */
.split { display: grid; grid-template-columns: 1.2fr 1fr; gap: 64px; align-items: center; }
.section-dark h2 { font-size: clamp(28px, 4vw, 40px); margin-bottom: 12px; }
.checklist { list-style: none; margin: 28px 0 32px; display: grid; gap: 12px; }
.checklist li { padding-left: 30px; position: relative; font-size: 16px; }
.checklist li::before { content: ""; position: absolute; left: 0; top: 6px; width: 16px; height: 9px; border-left: 2px solid var(--white); border-bottom: 2px solid var(--white); transform: rotate(-45deg); }
.pay-title { font-size: 14px; letter-spacing: .15em; text-transform: uppercase; color: #a1a1a6; font-weight: 500; margin-bottom: 16px; }
.pay-list { display: grid; gap: 12px; }
.pay { border: 1px solid #333; border-radius: 14px; padding: 18px 22px; font-size: 18px; font-weight: 600; }

/* ---------------- Product detail ---------------- */
.back { display: inline-block; margin-bottom: 28px; font-size: 14px; border: 0; color: var(--gray-5); }
.detail { display: grid; grid-template-columns: 1.1fr 1fr; gap: 56px; align-items: start; }
.detail-img { background: var(--gray-1); border-radius: 24px; aspect-ratio: 1 / 1; display: grid; place-items: center; padding: 48px; position: sticky; top: calc(var(--header-h) + 24px); }
.detail-img img { width: 100%; height: 100%; object-fit: contain; }
.art-big svg { max-width: 360px; }
.detail-info h1 { font-size: clamp(30px, 4vw, 44px); font-weight: 700; line-height: 1.15; }
.detail-desc { font-size: 17px; color: var(--gray-5); margin-top: 14px; }
.field-group { margin-top: 28px; }
.field-group > label { display: block; font-size: 14px; font-weight: 600; margin-bottom: 10px; }
.field-group > label span { font-weight: 400; color: var(--gray-5); }
.chips { display: flex; flex-wrap: wrap; gap: 10px; }
.chip { padding: 12px 20px; border: 1.5px solid var(--gray-3); border-radius: 12px; font-size: 15px; min-width: 90px; transition: border-color .2s; }
.chip:hover { border-color: var(--gray-4); }
.chip.active { border-color: var(--black); font-weight: 600; }
.color-chips { display: flex; flex-wrap: wrap; gap: 12px; }
.color-chip { width: 34px; height: 34px; border-radius: 50%; border: 1px solid rgba(0, 0, 0, .2); box-shadow: 0 0 0 3px var(--white); transition: box-shadow .2s; }
.color-chip.active { box-shadow: 0 0 0 3px var(--white), 0 0 0 5px var(--black); }
.qty { display: inline-flex; align-items: center; border: 1.5px solid var(--gray-3); border-radius: 12px; overflow: hidden; }
.qty button { width: 44px; height: 44px; font-size: 20px; }
.qty button:hover { background: var(--gray-1); }
.qty input { width: 60px; height: 44px; border: 0; text-align: center; font-size: 16px; outline: none; -moz-appearance: textfield; }
.qty input::-webkit-outer-spin-button, .qty input::-webkit-inner-spin-button { -webkit-appearance: none; }
.qty.small button { width: 34px; height: 34px; font-size: 17px; }
.qty.small span { min-width: 30px; text-align: center; font-size: 15px; }
.note { font-size: 13px; color: var(--gray-4); margin-top: 14px; }

/* ---------------- Cart / Checkout ---------------- */
.checkout { display: grid; grid-template-columns: 1.3fr 1fr; gap: 40px; align-items: start; margin-top: 28px; }
.cart-list { display: grid; gap: 14px; }
.cart-item { display: grid; grid-template-columns: 96px 1fr auto; gap: 18px; align-items: center; padding: 16px; background: var(--gray-1); border-radius: var(--radius); }
.cart-thumb { width: 96px; height: 96px; background: var(--white); border-radius: 12px; padding: 10px; display: grid; place-items: center; }
.cart-thumb img { width: 100%; height: 100%; object-fit: contain; }
.cart-info h3 { font-size: 16px; font-weight: 600; }
.cart-info p { font-size: 14px; color: var(--gray-5); }
.cart-actions { display: flex; flex-direction: column; align-items: flex-end; gap: 8px; }
.cart-actions .qty { background: var(--white); }

.order-form { border: 1px solid var(--gray-2); border-radius: 24px; padding: 32px; position: sticky; top: calc(var(--header-h) + 24px); }
.order-form h2 { font-size: 22px; margin-bottom: 20px; }
.field { display: block; margin-bottom: 18px; }
.field > span { display: block; font-size: 13px; font-weight: 600; margin-bottom: 7px; }
.field input, .field textarea { width: 100%; padding: 12px 14px; border: 1.5px solid var(--gray-3); border-radius: 12px; outline: none; transition: border-color .2s; resize: vertical; background: var(--white); }
.field input:focus, .field textarea:focus { border-color: var(--black); }
.field .invalid { border-color: #d70015; }
.radios { display: flex; flex-wrap: wrap; gap: 8px; }
.radio input { position: absolute; opacity: 0; pointer-events: none; }
.radio span { display: inline-block; padding: 9px 16px; border: 1.5px solid var(--gray-3); border-radius: 999px; font-size: 14px; cursor: pointer; transition: all .2s; }
.radio input:checked + span { background: var(--black); border-color: var(--black); color: var(--white); }
.radio input:focus-visible + span { outline: 2px solid var(--black); outline-offset: 2px; }
.pickup-info { font-size: 14px; background: var(--gray-1); border-radius: 12px; padding: 12px 14px; margin: -4px 0 18px; color: var(--gray-5); }
.form-error { color: #d70015; font-size: 14px; margin-bottom: 12px; }

.done-icon { width: 72px; height: 72px; border-radius: 50%; background: var(--black); color: var(--white); font-size: 34px; display: grid; place-items: center; margin: 0 auto 20px; }

/* ---------------- Contact ---------------- */
.contact { display: grid; grid-template-columns: 1fr 1.2fr; gap: 48px; margin-top: 36px; }
.contact-row { padding: 20px 0; border-bottom: 1px solid var(--gray-2); }
.contact-row span { font-size: 12px; letter-spacing: .12em; text-transform: uppercase; color: var(--gray-4); }
.contact-row p { font-size: 18px; margin-top: 4px; }
.contact-row a:hover { text-decoration: underline; }
.map { border-radius: 24px; overflow: hidden; min-height: 420px; background: var(--gray-1); }
.map iframe { width: 100%; height: 100%; min-height: 420px; border: 0; filter: grayscale(1); }

/* ---------------- Footer ---------------- */
.footer { background: var(--black); color: #d2d2d7; padding: 64px 0 28px; font-size: 14px; }
.footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr; gap: 40px; padding-bottom: 40px; border-bottom: 1px solid #2a2a2a; }
.footer .logo { color: var(--white); }
.footer-addr { margin-top: 18px; color: #a1a1a6; max-width: 320px; }
.footer-links, .footer-contact { display: flex; flex-direction: column; gap: 10px; }
.footer a:hover { color: var(--white); }
.footer-bottom { padding-top: 24px; display: grid; gap: 8px; color: var(--gray-4); font-size: 12px; }

/* ---------------- WhatsApp floating ---------------- */
.wa-float { position: fixed; right: 22px; bottom: 22px; z-index: 60; display: flex; align-items: center; gap: 8px; background: var(--black); color: var(--white); padding: 12px 20px 12px 14px; border-radius: 999px; box-shadow: 0 8px 24px rgba(0, 0, 0, .25); font-size: 14px; font-weight: 500; transition: transform .2s; border: 1px solid #333; }
.wa-float:hover { transform: translateY(-2px); }

/* ---------------- Toast ---------------- */
.toast { position: fixed; left: 50%; top: calc(var(--header-h) + 14px); transform: translate(-50%, -20px); background: var(--black); color: var(--white); padding: 12px 22px; border-radius: 999px; font-size: 14px; opacity: 0; pointer-events: none; transition: all .3s; z-index: 70; }
.toast.show { opacity: 1; transform: translate(-50%, 0); pointer-events: auto; }
.toast a { text-decoration: underline; margin-left: 8px; }

/* ---------------- Responsive ---------------- */
@media (max-width: 980px) {
  .nav { position: fixed; top: var(--header-h); left: 0; right: 0; flex-direction: column; gap: 0; background: var(--white); border-bottom: 1px solid var(--gray-2); padding: 8px 24px 20px; transform: translateY(-120%); transition: transform .3s; z-index: -1; margin: 0; }
  .menu-open .nav { transform: translateY(0); }
  .nav a { padding: 14px 0; font-size: 17px; border-bottom: 1px solid var(--gray-2); opacity: 1; }
  .nav a.active::after { display: none; }
  .header-tools { margin-left: auto; }
  .menu-btn { display: block; }
  .usp { grid-template-columns: repeat(2, 1fr); }
  .usp-item:nth-child(3) { border-left: 0; padding-left: 0; }
  .usp-item:nth-child(n+3) { border-top: 1px solid var(--gray-2); }
  .cat-grid { grid-template-columns: repeat(3, 1fr); }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .split, .detail, .checkout, .contact { grid-template-columns: 1fr; gap: 36px; }
  .detail-img, .order-form { position: static; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-grid > div:first-child { grid-column: 1 / -1; }
}

@media (max-width: 600px) {
  .container { padding: 0 18px; }
  .logo-text small { display: none; }
  .logo-text strong { font-size: 14px; }
  .lang-switch button { padding: 3px 7px; }
  .hero { padding: 80px 0 90px; }
  .section { padding-top: 64px; padding-bottom: 64px; }
  .usp { grid-template-columns: 1fr; }
  .usp-item, .usp-item + .usp-item { padding: 24px 0; border-left: 0; }
  .usp-item + .usp-item { border-top: 1px solid var(--gray-2); }
  .cat-grid { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: 1fr; }
  .grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
  .card-img { padding: 16px; }
  .card-body { padding: 0 14px 16px; }
  .card-body h3 { font-size: 15px; }
  .detail-img { padding: 24px; }
  .cart-item { grid-template-columns: 72px 1fr; }
  .cart-thumb { width: 72px; height: 72px; }
  .cart-actions { grid-column: 1 / -1; flex-direction: row; justify-content: space-between; align-items: center; }
  .order-form { padding: 22px; }
  .wa-float span { display: none; }
  .wa-float { padding: 14px; }
  .footer-grid { grid-template-columns: 1fr; }
}

/* ---------------- 產品相片 / 標籤 ---------------- */
.card-img, .detail-img, .cart-thumb { position: relative; overflow: hidden; }
.photo { position: absolute; inset: 0; width: 100% !important; height: 100% !important; object-fit: cover !important; transition: transform .5s; }
.photo.contain { object-fit: contain !important; padding: 8%; background: var(--white); }
.card:hover .photo { transform: scale(1.04); }
.tag { position: absolute; top: 14px; left: 14px; z-index: 2; font-size: 11px; font-weight: 600; letter-spacing: .08em; padding: 4px 10px; border-radius: 999px; }
.tag-new { background: var(--black); color: var(--white); }
.tag-preorder { background: var(--white); color: var(--black); border: 1px solid var(--black); }
.eyebrow .tag { position: static; margin-left: 8px; vertical-align: middle; letter-spacing: .05em; }
.photo-credit { font-size: 11px; color: var(--gray-4); margin-top: 8px; }
.photo-credit a { text-decoration: underline; }
.credits { margin-top: 32px; border-top: 1px solid var(--gray-2); font-size: 14px; }
.credits-row { display: grid; grid-template-columns: 1.2fr 1fr 1fr; gap: 16px; padding: 12px 0; border-bottom: 1px solid var(--gray-2); }
.credits-head { font-size: 12px; letter-spacing: .1em; text-transform: uppercase; color: var(--gray-4); }
.credits a { text-decoration: underline; }
.footer-credit { text-decoration: underline; }
@media (max-width: 600px) { .credits-row { grid-template-columns: 1fr; gap: 2px; } .credits-head { display: none; } }