/* =============================================
   weikaihuang.com — v2 共用樣式
   顏色、字體都集中在這裡改
   ============================================= */
:root {
  --ink: #0a0a0a;          /* 底色 */
  --ink-2: #141413;        /* 稍亮的區塊底色 */
  --paper: #f0ece4;        /* 主要文字 */
  --soft: #b9b3a9;         /* 次要文字（比舊版亮，手機上看得清楚） */
  --muted: #8a847b;        /* 最弱的文字 */
  --line: rgba(240,236,228,0.14);
  --accent: #d8cdb8;
  --serif: 'Noto Serif TC', serif;
  --sans: 'Noto Sans TC', sans-serif;
  --gutter: clamp(1.25rem, 4vw, 3rem);
  --max: 1320px;
}

*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  background: var(--ink);
  color: var(--paper);
  font-family: var(--sans);
  font-weight: 300;
  font-size: 16px;
  line-height: 1.8;
  overflow-x: hidden;
}
img { display: block; max-width: 100%; }
a { color: inherit; }
:focus-visible { outline: 1px solid var(--accent); outline-offset: 4px; }

/* 只有滑鼠裝置才用自訂游標 */
@media (pointer: fine) {
  body.has-cursor, body.has-cursor a, body.has-cursor button, body.has-cursor .shot { cursor: none; }
}
.cursor, .cursor-ring { position: fixed; pointer-events: none; z-index: 9999; border-radius: 50%; transform: translate(-50%, -50%); opacity: 0; }
.cursor { width: 7px; height: 7px; background: var(--paper); transition: width .25s, height .25s; }
.cursor-ring { width: 34px; height: 34px; border: 1px solid rgba(240,236,228,.45); transition: width .3s, height .3s; }
body.has-cursor .cursor, body.has-cursor .cursor-ring { opacity: 1; }
body.cursor-hover .cursor { width: 14px; height: 14px; }
body.cursor-hover .cursor-ring { width: 58px; height: 58px; }

/* ---------- 導覽列 ---------- */
.site-nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  display: flex; justify-content: space-between; align-items: center;
  padding: 1.5rem var(--gutter);
  transition: background .4s, padding .4s;
}
.site-nav.scrolled { background: rgba(10,10,10,.82); backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); padding-top: 1rem; padding-bottom: 1rem; }
.brand { text-decoration: none; display: flex; flex-direction: column; line-height: 1.2; }
.brand-name { font-family: var(--serif); font-weight: 400; font-size: 1.05rem; letter-spacing: .12em; }
.brand-role { font-size: .72rem; color: var(--soft); letter-spacing: .08em; }
.nav-links { display: flex; gap: clamp(1.25rem, 3vw, 2.5rem); list-style: none; align-items: center; }
.nav-links a { text-decoration: none; font-size: .9rem; letter-spacing: .1em; color: var(--soft); transition: color .3s; padding: .25rem 0; }
.nav-links a:hover, .nav-links a[aria-current="page"] { color: var(--paper); }
.nav-links a[aria-current="page"] { border-bottom: 1px solid var(--paper); }
.nav-links .nav-cta { color: var(--ink); background: var(--paper); padding: .45rem 1rem; border: none; }
.nav-links .nav-cta:hover, .nav-links .nav-cta[aria-current="page"] { color: var(--ink); background: var(--accent); border-bottom: none; }
.nav-toggle { display: none; background: none; border: 1px solid var(--line); color: var(--paper); font: inherit; font-size: .85rem; padding: .35rem .9rem; letter-spacing: .1em; }

@media (max-width: 820px) {
  .nav-toggle { display: block; }
  .nav-links {
    position: fixed; inset: 0; background: var(--ink);
    flex-direction: column; justify-content: center; gap: 2rem;
    opacity: 0; visibility: hidden; transition: opacity .35s, visibility .35s;
  }
  .nav-links a { font-family: var(--serif); font-size: 1.6rem; color: var(--paper); }
  .nav-links .nav-cta { font-family: var(--sans); font-size: 1rem; padding: .7rem 1.6rem; }
  body.nav-open .nav-links { opacity: 1; visibility: visible; }
  body.nav-open { overflow: hidden; }
  .nav-toggle { position: relative; z-index: 101; }
}

/* ---------- 通用排版 ---------- */
.wrap { max-width: var(--max); margin: 0 auto; padding: 0 var(--gutter); }
.section { padding: clamp(5rem, 10vw, 9rem) 0; }
.section + .section { border-top: 1px solid var(--line); }
.h-display { font-family: var(--serif); font-weight: 300; font-size: clamp(2.6rem, 7vw, 6rem); line-height: 1.12; letter-spacing: .04em; }
.h-1 { font-family: var(--serif); font-weight: 300; font-size: clamp(2.2rem, 5vw, 3.8rem); line-height: 1.2; letter-spacing: .04em; }
.h-2 { font-family: var(--serif); font-weight: 300; font-size: clamp(1.5rem, 3vw, 2.2rem); line-height: 1.35; letter-spacing: .04em; }
.h-3 { font-family: var(--serif); font-weight: 400; font-size: 1.2rem; line-height: 1.5; letter-spacing: .04em; }
.lead { font-family: var(--serif); font-weight: 300; font-size: clamp(1.05rem, 1.6vw, 1.25rem); line-height: 2; color: var(--soft); max-width: 36em; }
.body { color: var(--soft); max-width: 34em; }
.small { font-size: .85rem; color: var(--muted); }
.sec-head { display: grid; grid-template-columns: 1fr auto; align-items: end; gap: 2rem; margin-bottom: clamp(2.5rem, 5vw, 4rem); }
.sec-head .lead { margin-top: 1rem; }
.text-link { font-size: .95rem; color: var(--paper); text-decoration: none; border-bottom: 1px solid var(--line); padding-bottom: .2rem; transition: border-color .3s; white-space: nowrap; }
.text-link:hover { border-color: var(--paper); }

.btn { display: inline-flex; align-items: center; justify-content: center; gap: .75rem; font: inherit; font-size: .95rem; letter-spacing: .08em; text-decoration: none; padding: .9rem 1.8rem; border: 1px solid var(--paper); transition: background .3s, color .3s, border-color .3s; }
.btn-solid { background: var(--paper); color: var(--ink); }
.btn-solid:hover { background: var(--accent); border-color: var(--accent); }
.btn-ghost { background: transparent; color: var(--paper); border-color: rgba(240,236,228,.45); }
.btn-ghost:hover { border-color: var(--paper); background: rgba(240,236,228,.06); }

/* 還沒填的內容，上線前要換掉 */
.todo { background: rgba(216,205,184,.16); outline: 1px dashed var(--accent); padding: 0 .3em; }

/* ---------- 首頁 Hero 輪播（這一版唯一「炫」的地方） ---------- */
.hero { position: relative; height: 100vh; height: 100svh; min-height: 560px; overflow: hidden; }
.hero-slides { position: absolute; inset: 0; }
.hero-slide { position: absolute; inset: 0; opacity: 0; transition: opacity 1.6s ease; }
.hero-slide.active { opacity: 1; }
.hero-slide img { width: 100%; height: 100%; object-fit: cover; transform: scale(1.08); }
.hero-slide.active img { animation: kenburns 7s ease-out forwards; }
@keyframes kenburns { from { transform: scale(1.08); } to { transform: scale(1); } }
.hero::after { content: ''; position: absolute; inset: 0; background: linear-gradient(to bottom, rgba(10,10,10,.55) 0%, rgba(10,10,10,0) 28%, rgba(10,10,10,.35) 50%, rgba(10,10,10,.92) 100%), linear-gradient(to right, rgba(10,10,10,.45) 0%, rgba(10,10,10,0) 60%); }
.hero-title, .hero-sub { text-shadow: 0 2px 24px rgba(0,0,0,.45); }
.hero-title { font-size: clamp(2.1rem, 7vw, 6rem); }
.hero-inner { position: absolute; left: 0; right: 0; bottom: clamp(2rem, 6vh, 4.5rem); z-index: 2; }
.hero-title { opacity: 0; transform: translateY(18px); animation: rise 1.2s ease .3s forwards; }
.hero-sub { margin-top: 1.25rem; font-size: clamp(.95rem, 1.4vw, 1.1rem); color: var(--soft); letter-spacing: .06em; opacity: 0; animation: rise 1.2s ease .6s forwards; }
.hero-actions { display: flex; gap: 1rem; flex-wrap: wrap; margin-top: 2rem; opacity: 0; animation: rise 1.2s ease .9s forwards; }
@keyframes rise { to { opacity: 1; transform: none; } }

.hero-meta { display: flex; justify-content: space-between; align-items: flex-end; gap: 2rem; margin-top: clamp(2.5rem, 6vh, 4rem); padding-top: 1.25rem; border-top: 1px solid rgba(240,236,228,.22); }
.hero-caption { font-size: .9rem; color: var(--soft); min-height: 1.6em; transition: opacity .5s; }
.hero-caption strong { font-weight: 400; color: var(--paper); margin-right: .75rem; }
.hero-dots { display: flex; gap: .5rem; }
.hero-dot { width: 42px; height: 22px; background: none; border: none; padding: 10px 0; position: relative; }
.hero-dot::before, .hero-dot span { content: ''; position: absolute; left: 0; right: 0; top: 10px; height: 2px; background: rgba(240,236,228,.25); }
.hero-dot span { right: auto; width: 0; background: var(--paper); }
.hero-dot.active span { animation: fill var(--slide-ms, 5500ms) linear forwards; }
.hero-dot.done span { width: 100%; }
@keyframes fill { to { width: 100%; } }

/* ---------- 精選案例 ---------- */
.case-feature { display: grid; grid-template-columns: 1.6fr 1fr; gap: clamp(1.5rem, 4vw, 4rem); align-items: center; }
.case-mosaic { display: grid; grid-template-columns: 2fr 1fr; grid-template-rows: 1fr 1fr; gap: 6px; aspect-ratio: 16 / 10; }
.case-mosaic .shot:first-child { grid-row: span 2; }
.case-mosaic .shot img { width: 100%; height: 100%; object-fit: cover; }
.case-facts { list-style: none; margin: 2rem 0; border-top: 1px solid var(--line); }
.case-facts li { display: grid; grid-template-columns: 5.5rem 1fr; gap: 1rem; padding: .85rem 0; border-bottom: 1px solid var(--line); font-size: .95rem; }
.case-facts span:first-child { color: var(--muted); }

/* ---------- 服務 ---------- */
.service-list { border-top: 1px solid var(--line); }
.service { display: grid; grid-template-columns: minmax(10rem, 1fr) 2fr minmax(9rem, auto); gap: clamp(1rem, 3vw, 3rem); padding: clamp(1.75rem, 3vw, 2.5rem) 0; border-bottom: 1px solid var(--line); align-items: baseline; }
.service-price { font-family: var(--serif); font-size: 1.15rem; text-align: right; white-space: nowrap; }
.service-price small { display: block; font-family: var(--sans); font-size: .8rem; color: var(--muted); }
.service .body { max-width: none; }
.service ul { list-style: none; margin-top: .9rem; display: flex; flex-wrap: wrap; gap: .4rem 1.5rem; font-size: .9rem; color: var(--soft); }
.service ul li::before { content: '—'; color: var(--muted); margin-right: .5rem; }

/* ---------- 作品分類卡 ---------- */
.cat-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 6px; }
.cat-card { position: relative; display: block; overflow: hidden; text-decoration: none; aspect-ratio: 3 / 4; }
.cat-card:first-child { aspect-ratio: auto; }
.cat-card img { width: 100%; height: 100%; object-fit: cover; filter: brightness(.62); transition: transform .9s cubic-bezier(.25,.46,.45,.94), filter .6s; }
.cat-card:hover img { transform: scale(1.04); filter: brightness(.5); }
.cat-card-text { position: absolute; left: 1.5rem; right: 1.5rem; bottom: 1.5rem; }
.cat-card-text .small { color: var(--soft); margin-top: .35rem; display: block; }

/* ---------- 頁首（內頁） ---------- */
.page-head { padding-top: clamp(8rem, 16vw, 12rem); padding-bottom: clamp(3rem, 6vw, 5rem); }
.page-head .lead { margin-top: 1.5rem; }
.crumb { font-size: .9rem; color: var(--muted); text-decoration: none; display: inline-block; margin-bottom: 1.5rem; }
.crumb:hover { color: var(--paper); }

/* ---------- 相簿 ---------- */
.gallery { columns: 3; column-gap: 6px; }
.gallery .shot { break-inside: avoid; margin-bottom: 6px; }
.shot { position: relative; overflow: hidden; display: block; background: var(--ink-2); }
.shot img { width: 100%; transition: transform .8s cubic-bezier(.25,.46,.45,.94), filter .5s; filter: brightness(.94); }
.shot:hover img { transform: scale(1.03); filter: brightness(1.02); }
.gallery.row { columns: auto; display: grid; grid-template-columns: repeat(var(--n, 4), 1fr); gap: 6px; }
.gallery.row .shot { margin: 0; aspect-ratio: 3 / 2; }
.gallery.row .shot img { height: 100%; object-fit: cover; }
.fact .h-3 { font-size: 1.05rem; }
.group { margin-top: clamp(4rem, 8vw, 6.5rem); }
.group-head { display: flex; justify-content: space-between; align-items: baseline; gap: 1rem; padding-bottom: 1rem; margin-bottom: 1.5rem; border-bottom: 1px solid var(--line); }
.group-head .small { white-space: nowrap; }
.case-block { display: grid; grid-template-columns: 1fr 2.2fr; gap: clamp(1.5rem, 4vw, 4rem); align-items: start; }
.case-block .case-text { position: sticky; top: 7rem; }
.case-block .gallery { columns: 2; }

/* ---------- Lightbox ---------- */
.lightbox { position: fixed; inset: 0; z-index: 1000; background: rgba(10,10,10,.97); display: flex; align-items: center; justify-content: center; opacity: 0; visibility: hidden; transition: opacity .35s, visibility .35s; }
.lightbox.open { opacity: 1; visibility: visible; }
.lightbox img { max-width: 92vw; max-height: 86vh; object-fit: contain; }
.lb-btn { position: absolute; background: none; border: 1px solid rgba(240,236,228,.3); color: var(--paper); width: 48px; height: 48px; border-radius: 50%; display: flex; align-items: center; justify-content: center; transition: border-color .3s; }
.lb-btn:hover { border-color: var(--paper); }
.lb-btn svg { width: 16px; height: 16px; stroke: currentColor; fill: none; stroke-width: 1.5; }
.lb-close { top: 1.5rem; right: 1.5rem; }
.lb-prev { left: 1.5rem; top: 50%; transform: translateY(-50%); }
.lb-next { right: 1.5rem; top: 50%; transform: translateY(-50%); }
.lb-count { position: absolute; bottom: 1.5rem; left: 50%; transform: translateX(-50%); font-size: .85rem; color: var(--soft); }

/* ---------- 關於 ---------- */
.about-hero { display: grid; grid-template-columns: 1fr 1.1fr; gap: clamp(2rem, 5vw, 5rem); align-items: end; padding-top: clamp(7rem, 14vw, 10rem); }
.about-hero .shot img { aspect-ratio: 4 / 5; object-fit: cover; }
.facts { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); margin-top: 3rem; }
.fact { background: var(--ink); padding: 1.5rem; }
.fact .h-3 { margin-bottom: .35rem; }
.exp-list { border-top: 1px solid var(--line); }
.exp-item { display: grid; grid-template-columns: 7rem 1fr minmax(0, 320px); gap: clamp(1rem, 3vw, 2.5rem); padding: 2rem 0; border-bottom: 1px solid var(--line); align-items: start; }
.exp-date { color: var(--accent); font-size: .95rem; }

/* ---------- 流程 / FAQ ---------- */
.steps { list-style: none; display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); counter-reset: step; }
.steps li { background: var(--ink); padding: 1.75rem 1.5rem 2rem; counter-increment: step; }
.steps li::before { content: counter(step); display: block; font-family: var(--serif); font-size: 2rem; color: var(--accent); line-height: 1; margin-bottom: 1.25rem; }
.steps .body { font-size: .92rem; margin-top: .5rem; }
.faq { border-top: 1px solid var(--line); max-width: 52rem; }
.faq details { border-bottom: 1px solid var(--line); }
.faq summary { list-style: none; padding: 1.4rem 2.5rem 1.4rem 0; position: relative; font-family: var(--serif); font-size: 1.1rem; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: '+'; position: absolute; right: 0; top: 1.2rem; font-family: var(--sans); font-size: 1.4rem; color: var(--soft); transition: transform .3s; }
.faq details[open] summary::after { transform: rotate(45deg); }
.faq details p { padding: 0 0 1.5rem; color: var(--soft); max-width: 40em; }

/* ---------- 聯絡 ---------- */
.contact-grid { display: grid; grid-template-columns: 1fr 1.4fr; gap: clamp(2.5rem, 6vw, 6rem); align-items: start; }
.channels { list-style: none; margin-top: 2.5rem; border-top: 1px solid var(--line); }
.channels li { display: grid; grid-template-columns: 5rem 1fr; gap: 1rem; padding: 1rem 0; border-bottom: 1px solid var(--line); }
.channels span:first-child { color: var(--muted); font-size: .9rem; }
.channels a { text-decoration: none; }
.channels a:hover { text-decoration: underline; text-underline-offset: 4px; }
.form { display: grid; grid-template-columns: 1fr 1fr; gap: 1.75rem 1.5rem; }
.field { display: flex; flex-direction: column; gap: .5rem; }
.field.full { grid-column: 1 / -1; }
.field label { font-size: .9rem; color: var(--soft); }
.field label .req { color: var(--accent); margin-left: .25rem; }
.field input, .field select, .field textarea {
  font: inherit; font-size: 1rem; color: var(--paper); background: transparent;
  border: none; border-bottom: 1px solid rgba(240,236,228,.28); padding: .6rem 0; border-radius: 0;
  transition: border-color .3s; -webkit-appearance: none; appearance: none;
}
.field select { background-image: linear-gradient(45deg, transparent 50%, var(--soft) 50%), linear-gradient(135deg, var(--soft) 50%, transparent 50%); background-position: calc(100% - 12px) 55%, calc(100% - 7px) 55%; background-size: 5px 5px; background-repeat: no-repeat; }
.field select option { background: var(--ink); }
.field input:focus, .field select:focus, .field textarea:focus { outline: none; border-color: var(--paper); }
.field textarea { min-height: 7rem; resize: vertical; }
.field input::placeholder, .field textarea::placeholder { color: var(--muted); }
.form-foot { grid-column: 1 / -1; display: flex; align-items: center; gap: 1.5rem; flex-wrap: wrap; }
.form-status { font-size: .9rem; color: var(--soft); }

/* ---------- CTA 帶 ---------- */
.cta-band { text-align: left; }
.cta-band .h-1 { max-width: 14em; }
.cta-band .hero-actions { opacity: 1; animation: none; }

/* ---------- Footer ---------- */
.site-foot { border-top: 1px solid var(--line); padding: 2.5rem 0; }
.site-foot .wrap { display: flex; justify-content: space-between; align-items: center; gap: 1.5rem; flex-wrap: wrap; }
.foot-links { display: flex; gap: 1.75rem; flex-wrap: wrap; }
.foot-links a { text-decoration: none; font-size: .9rem; color: var(--soft); }
.foot-links a:hover { color: var(--paper); }

/* ---------- 響應式 ---------- */
@media (max-width: 1024px) {
  .service { grid-template-columns: 1fr; gap: .75rem; }
  .service-price { text-align: left; }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .case-block { grid-template-columns: 1fr; }
  .case-block .case-text { position: static; }
}
@media (max-width: 820px) {
  .case-feature, .about-hero, .contact-grid { grid-template-columns: 1fr; }
  .cat-grid { grid-template-columns: 1fr 1fr; }
  .cat-card:first-child { grid-column: 1 / -1; aspect-ratio: 4 / 3; }
  .gallery { columns: 2; }
  .gallery.row { grid-template-columns: 1fr 1fr; }
  .facts { grid-template-columns: 1fr; }
  .exp-item { grid-template-columns: 1fr; gap: .75rem; }
  .sec-head { grid-template-columns: 1fr; }
  .hero-meta { flex-direction: column; align-items: flex-start; gap: 1rem; }
}
@media (max-width: 540px) {
  .gallery, .case-block .gallery { columns: 2; column-gap: 4px; }
  .gallery .shot { margin-bottom: 4px; }
  .gallery.row { grid-template-columns: 1fr 1fr; gap: 4px; }
  .gallery.row .shot:first-child:nth-last-child(odd) { grid-column: 1 / -1; }
  .form { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr; }
  .cat-grid { grid-template-columns: 1fr; }
  .cat-card, .cat-card:first-child { aspect-ratio: 4 / 3; }
  .hero-actions .btn { flex: 1; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; scroll-behavior: auto !important; }
  .hero-title, .hero-sub, .hero-actions { opacity: 1; transform: none; }
}

/* 人像案例照片多、都是直的，用三欄 */
#case-night .gallery, #case-yunlin .gallery, #case-wedding .gallery { columns: 3; }
@media (max-width: 820px) { #case-night .gallery, #case-yunlin .gallery, #case-wedding .gallery { columns: 2; } }
@media (max-width: 540px) { #case-night .gallery, #case-yunlin .gallery, #case-wedding .gallery { columns: 2; } }

/* 有時間順序的案例：由左到右、一排一排讀 */
.gallery.seq { columns: auto; display: grid; grid-template-columns: repeat(3, 1fr); grid-auto-flow: row dense; gap: 6px; }
.gallery.seq .shot { margin: 0; aspect-ratio: 3 / 2; }
.gallery.seq .shot img { width: 100%; height: 100%; object-fit: cover; }
.gallery.seq .shot.tall { grid-row: span 2; aspect-ratio: auto; position: relative; }
.gallery.seq .shot.tall img { position: absolute; inset: 0; }
@media (max-width: 820px) { .gallery.seq { grid-template-columns: 1fr 1fr; gap: 4px; } }

/* 左上角 WKH，沿用舊版 */
.brand-mark { font-family: var(--serif); font-weight: 400; font-size: 1rem; letter-spacing: .32em; line-height: 1; padding: .4rem 0; }

/* 手機首頁：照片在上、文字在下，不再擋住照片 */
@media (max-width: 820px) {
  .hero { height: auto; min-height: 0; }
  .hero::after { display: none; }
  .hero-slides { position: relative; height: 62svh; min-height: 340px; overflow: hidden; }
  .hero-slides::after { content: ''; position: absolute; inset: 0; z-index: 1; pointer-events: none;
    background: linear-gradient(to bottom, rgba(10,10,10,.6) 0%, rgba(10,10,10,0) 22%, rgba(10,10,10,0) 78%, rgba(10,10,10,1) 100%); }
  .hero-inner { position: relative; bottom: auto; padding: 1.5rem 0 3rem; }
  .hero-title, .hero-sub { text-shadow: none; }
  .hero-meta { margin-top: 2rem; }
}