/* TRUEHUE —— 杂志风服饰展示站 */
:root {
  --ink: #1c1a17;
  --ink-2: #4a453f;
  --muted: #8c857b;
  --line: #e3ddd3;
  --paper: #f7f4ee;
  --paper-2: #efeae1;
  --accent: #2f4a3c;
  --accent-soft: #d9e2db;
  --radius: 2px;
  --shadow: 0 20px 50px -20px rgba(28, 26, 23, .28);
  --ease: cubic-bezier(.22, .61, .36, 1);
  --serif: "Songti SC", "STSong", "Source Han Serif SC", "Noto Serif SC", "Times New Roman", serif;
  --sans: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
html, body { width: 100%; overflow-x: hidden; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 15px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; }
::selection { background: var(--accent); color: var(--paper); }

/* ---------- 导航 ---------- */
/* 首屏是深色大片，导航压在图上时用米白字；滚过首屏再加 .is-stuck 变回浅底深字。 */
.nav {
  position: fixed; inset: 0 0 auto 0; z-index: 90;
  display: flex; align-items: center; justify-content: space-between;
  padding: 22px clamp(20px, 5vw, 72px);
  transition: padding .45s var(--ease), background .45s var(--ease), box-shadow .45s var(--ease), backdrop-filter .45s;
}
.nav .brand b, .nav .brand span, .nav .nav-links a { color: rgba(255, 255, 255, .94); transition: color .45s var(--ease); }
.nav .brand span { color: rgba(255, 255, 255, .6); }
.nav .nav-links a::after { background: #fff; }
.nav .nav-links .nav-admin { border-color: rgba(255, 255, 255, .72); }
.nav .nav-links .nav-admin:hover { background: #fff; color: var(--ink); }
.nav.is-stuck {
  padding: 12px clamp(20px, 5vw, 72px);
  background: rgba(247, 244, 238, .78);
  backdrop-filter: saturate(160%) blur(14px);
  -webkit-backdrop-filter: saturate(160%) blur(14px);
  box-shadow: 0 1px 0 var(--line);
}
.nav.is-stuck .brand b, .nav.is-stuck .nav-links a { color: var(--ink); }
.nav.is-stuck .brand span { color: var(--muted); }
.nav.is-stuck .nav-links a::after { background: var(--ink); }
.nav.is-stuck .nav-links .nav-admin { border-color: var(--ink); }
.nav.is-stuck .nav-links .nav-admin:hover { background: var(--ink); color: var(--paper); }
.brand { display: flex; flex-direction: column; line-height: 1; }
.brand b {
  font-family: var(--serif); font-weight: 500;
  font-size: clamp(19px, 2.1vw, 26px); letter-spacing: .34em; text-indent: .34em;
}
.brand span { font-size: 9px; letter-spacing: .42em; color: var(--muted); margin-top: 7px; text-indent: .42em; }
.nav-links { display: flex; gap: clamp(16px, 2.6vw, 40px); align-items: center; }
.nav-links a {
  font-size: 13px; letter-spacing: .18em; position: relative; padding: 4px 0; color: var(--ink-2);
}
.nav-links a::after {
  content: ""; position: absolute; left: 0; bottom: 0; height: 1px; width: 0; background: var(--ink);
  transition: width .4s var(--ease);
}
.nav-links a:hover { color: var(--ink); }
.nav-links a:hover::after { width: 100%; }
.nav-links .nav-admin {
  border: 1px solid var(--ink); padding: 7px 16px; letter-spacing: .2em; font-size: 11px;
  transition: background .35s var(--ease), color .35s var(--ease);
}
.nav-links .nav-admin::after { display: none; }
.nav-links .nav-admin:hover { background: var(--ink); color: var(--paper); }

/* ---------- Hero：整屏大片 ---------- */
/* 图铺满整个视口，文字压在图上。标题左对齐落在下三分之一，
   小字在最上，按钮最下，顺着视线从上往下走。 */
.hero {
  position: relative; min-height: 100svh; display: block;
  padding: 0; overflow: hidden; background: var(--paper-2);
}
.hero::before {
  content: ""; position: absolute; inset: 0; z-index: 2; pointer-events: none;
  /* 上深下深，中间留给模特。文字压上去还能读，图又不糊。 */
  background:
    linear-gradient(180deg, rgba(24, 21, 18, .46) 0%, rgba(24, 21, 18, .06) 26%, rgba(24, 21, 18, 0) 46%, rgba(24, 21, 18, .52) 100%),
    linear-gradient(90deg, rgba(24, 21, 18, .42) 0%, rgba(24, 21, 18, .05) 46%, rgba(24, 21, 18, 0) 70%);
}
.hero-media { position: absolute; inset: 0; z-index: 1; overflow: hidden; height: auto; }
.hero-slides { position: absolute; inset: 0; }
.hero-slides img {
  position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: center 26%;
  opacity: 0; transform: scale(1.08); transition: opacity 1.6s var(--ease), transform 14s linear;
}
.hero-slides img.is-on { opacity: 1; transform: scale(1); }
.hero-dots {
  position: absolute; left: clamp(24px, 6vw, 96px); bottom: clamp(30px, 5vh, 62px);
  display: flex; gap: 12px; z-index: 5;
}
.hero-dots button {
  width: 30px; height: 1px; padding: 0; border: 0; cursor: pointer;
  background: rgba(255, 255, 255, .34); transition: background .5s var(--ease), width .5s var(--ease);
}
.hero-dots button.is-on { background: #fff; width: 56px; }
.hero-dots button:hover { background: rgba(255, 255, 255, .75); }
.hero-copy {
  position: relative; z-index: 3; min-height: 100svh;
  display: flex; flex-direction: column; justify-content: flex-end;
  max-width: 1080px;
  padding: clamp(84px, 12vh, 132px) clamp(24px, 6vw, 96px) clamp(96px, 15vh, 168px);
  color: #fff;
}
.hero-kicker {
  position: absolute; left: clamp(24px, 6vw, 96px); top: clamp(84px, 12vh, 132px);
  font-size: 10px; letter-spacing: .52em; text-indent: .52em; color: rgba(255, 255, 255, .78);
  margin: 0;
}
.hero-copy h1 {
  font-family: var(--serif); font-weight: 300; margin: 0; color: #fff;
  font-size: clamp(38px, 6.6vw, 92px); letter-spacing: .14em; text-indent: .14em; line-height: 1.16;
  text-shadow: 0 2px 40px rgba(20, 18, 15, .28);
}
.hero-copy h1 .hero-line { display: block; }
.hero-copy h1 .thin { opacity: .66; font-size: .56em; letter-spacing: .26em; text-indent: .26em; margin-left: .3em; }
.hero-copy p {
  color: rgba(255, 255, 255, .78); font-size: 13px; letter-spacing: .2em;
  margin: 26px 0 38px; text-shadow: 0 1px 20px rgba(20, 18, 15, .3);
}
.hero-cta { display: flex; gap: 16px; justify-content: flex-start; flex-wrap: wrap; }
.btn {
  display: inline-flex; align-items: center; gap: 10px; border: 1px solid var(--ink);
  background: rgba(247, 244, 238, .5); color: var(--ink); padding: 14px 34px; font-size: 12px;
  letter-spacing: .26em; text-indent: .26em; transition: all .4s var(--ease); position: relative; overflow: hidden;
  backdrop-filter: blur(4px);
}
.btn:hover { background: var(--ink); color: var(--paper); transform: translateY(-2px); }
.btn.solid { background: var(--ink); color: var(--paper); }
.btn.solid:hover { background: var(--accent); border-color: var(--accent); }
/* 压在图上时反过来：描白边、白字 */
.hero-cta .btn { border-color: rgba(255, 255, 255, .72); background: rgba(255, 255, 255, .06); color: #fff; backdrop-filter: blur(6px); }
.hero-cta .btn:hover { background: #fff; color: var(--ink); border-color: #fff; }
.hero-cta .btn.solid { background: #f7f4ee; color: var(--ink); border-color: #f7f4ee; }
.hero-cta .btn.solid:hover { background: transparent; color: #fff; border-color: rgba(255, 255, 255, .72); }
.scroll-hint {
  position: absolute; bottom: clamp(30px, 5vh, 62px); right: clamp(24px, 6vw, 96px); z-index: 4;
  font-size: 10px; letter-spacing: .4em; color: rgba(255, 255, 255, .62); display: grid; justify-items: center; gap: 8px;
}
.scroll-hint i { display: block; width: 1px; height: 42px; background: linear-gradient(rgba(255,255,255,.9), transparent); animation: drop 2.2s var(--ease) infinite; }
@keyframes drop { 0% { transform: scaleY(0); transform-origin: top; } 50% { transform: scaleY(1); } 100% { transform: scaleY(1); opacity: 0; } }

/* ---------- 分类横条 ---------- */
.catbar { position: sticky; top: 0; z-index: 60; background: var(--paper); border-bottom: 1px solid var(--line); }
.catbar-inner {
  display: flex; gap: 8px; overflow-x: auto; padding: 0 clamp(20px, 5vw, 72px);
  scrollbar-width: none; -ms-overflow-style: none;
}
.catbar-inner::-webkit-scrollbar { display: none; }
.cat {
  flex: 0 0 auto; padding: 20px 18px; font-size: 12px; letter-spacing: .2em; color: var(--muted);
  background: none; border: 0; border-bottom: 1px solid transparent; transition: all .35s var(--ease);
  display: flex; flex-direction: column; align-items: center; gap: 3px;
}
.cat small { font-size: 8px; letter-spacing: .28em; opacity: .6; }
.cat:hover { color: var(--ink); }
.cat.is-on { color: var(--ink); border-bottom-color: var(--ink); }

/* ---------- 区块 ---------- */
.section { padding: clamp(64px, 9vw, 130px) clamp(20px, 5vw, 72px); }
.section--note { padding-top: clamp(16px, 2.4vw, 40px); padding-bottom: clamp(40px, 6vw, 90px); }
.sec-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 30px; margin-bottom: 48px; flex-wrap: wrap; }
.sec-head h2 {
  font-family: var(--serif); font-weight: 400; font-size: clamp(26px, 3.4vw, 44px);
  letter-spacing: .14em; margin: 0 0 10px;
}
.sec-head p { margin: 0; color: var(--muted); font-size: 12px; letter-spacing: .24em; }
.sec-count { font-family: var(--serif); font-size: 13px; letter-spacing: .2em; color: var(--muted); }

/* ---------- 瀑布流 / 网格 ---------- */
.grid {
  display: grid; gap: clamp(16px, 2.2vw, 34px);
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  align-items: start;
  grid-auto-rows: min-content;
}
/* 卡片淡入由 JS 写入的 --d 控制延迟，不依赖 IntersectionObserver；
   万一 JS 出问题，卡片本身仍是默认可见的。 */
.card {
  position: relative; background: var(--paper-2); overflow: hidden;
  opacity: 1;
  animation: cardIn .9s var(--ease) both;
  animation-delay: var(--d, 0ms);
}
@keyframes cardIn { from { opacity: 0; transform: translateY(28px); } to { opacity: 1; transform: none; } }
.card .frame { position: relative; overflow: hidden; }
.card .frame img {
  width: 100%; aspect-ratio: 3 / 4; object-fit: cover;
  transition: transform 1.1s var(--ease), filter .6s var(--ease);
}
.card.tall .frame img { aspect-ratio: 2 / 3; }
.card:hover .frame img { transform: scale(1.06); filter: brightness(1.02); }
.card .tagline {
  position: absolute; left: 16px; bottom: 16px; right: 16px;
  display: flex; gap: 6px; flex-wrap: wrap;
  opacity: 0; transform: translateY(12px); transition: all .5s var(--ease);
}
.card:hover .tagline { opacity: 1; transform: none; }
.tagline span {
  background: rgba(247, 244, 238, .88); backdrop-filter: blur(6px);
  padding: 5px 11px; font-size: 10px; letter-spacing: .16em; color: var(--ink-2);
}
.card .hover-cue {
  position: absolute; inset: 0; display: grid; place-items: center; pointer-events: none;
  opacity: 0; transition: opacity .45s var(--ease);
}
.card:hover .hover-cue { opacity: 1; }
.hover-cue b {
  font-family: var(--serif); font-weight: 400; font-size: 13px; letter-spacing: .34em;
  color: var(--paper); background: rgba(28, 26, 23, .58); padding: 12px 22px; backdrop-filter: blur(3px);
}
.card .meta { padding: 16px 4px 22px; display: flex; justify-content: space-between; align-items: baseline; gap: 14px; }
.card .meta h3 { font-family: var(--serif); font-weight: 400; font-size: 15px; letter-spacing: .1em; margin: 0; }
.card .meta em { font-style: normal; font-size: 11px; letter-spacing: .16em; color: var(--muted); }
.card .corner {
  position: absolute; top: 12px; right: 12px; width: 34px; height: 34px; display: grid; place-items: center;
  border-radius: 50%; background: rgba(247, 244, 238, .85); backdrop-filter: blur(6px);
  font-size: 13px; opacity: 0; transform: scale(.8); transition: all .4s var(--ease);
}
.card:hover .corner { opacity: 1; transform: none; }
.card:hover .corner.heart { background: var(--ink); color: var(--paper); }

/* ---------- 编辑手记 ---------- */
.note {
  display: grid; grid-template-columns: 1.1fr 1fr; gap: clamp(24px, 5vw, 80px); align-items: center;
  border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); padding: clamp(40px, 6vw, 80px) 0;
}
.note .pic { overflow: hidden; }
.note .pic img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; transition: transform 1.4s var(--ease); }
.note .pic:hover img { transform: scale(1.05); }
.note h2 { font-family: var(--serif); font-weight: 400; font-size: clamp(24px, 3vw, 38px); letter-spacing: .14em; margin: 0 0 22px; line-height: 1.5; }
.note p { color: var(--ink-2); font-size: 14px; line-height: 2.1; margin: 0 0 16px; max-width: 46ch; }
.note .sign { font-family: var(--serif); font-size: 13px; letter-spacing: .3em; color: var(--muted); margin-top: 26px; }

/* ---------- 服务条 ---------- */
/* ---------- 怎么穿 ---------- */
.looks {
  display: grid; gap: clamp(16px, 2.2vw, 32px);
  grid-template-columns: repeat(3, 1fr);
  align-items: start;
}
.look { display: block; position: relative; }
.look--wide { grid-column: span 2; }
.look-pic { overflow: hidden; background: var(--paper-2); }
.look-pic img {
  width: 100%; aspect-ratio: 3 / 4; object-fit: cover; object-position: center 22%;
  transition: transform 1.2s var(--ease), filter .6s var(--ease);
}
.look--wide .look-pic img { aspect-ratio: 16 / 10; }
.look:hover .look-pic img { transform: scale(1.05); filter: brightness(1.02); }
.look-cap { display: flex; align-items: baseline; gap: 12px; padding: 14px 2px 0; flex-wrap: wrap; }
.look-cap span { font-family: var(--serif); font-size: 11px; letter-spacing: .2em; color: var(--muted); }
.look-cap b { font-family: var(--serif); font-weight: 400; font-size: 15px; letter-spacing: .1em; }
.look-cap i { font-style: normal; font-size: 11px; letter-spacing: .12em; color: var(--muted); margin-left: auto; }
.look::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: -1px; height: 1px; transform: scaleX(0);
  transform-origin: left; background: var(--ink); transition: transform .6s var(--ease);
}
.look:hover::after { transform: scaleX(1); }

.services { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 1px; background: var(--line); border: 1px solid var(--line); }
.services div { background: var(--paper); padding: 34px 26px; transition: background .4s var(--ease); }
.services div:hover { background: var(--paper-2); }
.services h4 { font-family: var(--serif); font-weight: 400; font-size: 15px; letter-spacing: .14em; margin: 0 0 10px; }
.services p { margin: 0; font-size: 12px; color: var(--muted); letter-spacing: .08em; line-height: 1.9; }

/* ---------- 页脚 ---------- */
.footer {
  padding: clamp(50px, 7vw, 90px) clamp(20px, 5vw, 72px) 40px; border-top: 1px solid var(--line);
  display: flex; justify-content: space-between; align-items: flex-end; gap: 30px; flex-wrap: wrap; color: var(--muted);
}
.footer .big { font-family: var(--serif); font-size: clamp(32px, 6vw, 72px); letter-spacing: .2em; color: var(--ink-2); line-height: 1; }
.footer small { font-size: 11px; letter-spacing: .16em; }

/* ---------- 商品详情 ---------- */
.detail { padding: clamp(100px, 12vw, 150px) clamp(20px, 5vw, 72px) 60px; }
.detail-grid { display: grid; grid-template-columns: 1.35fr 1fr; gap: clamp(24px, 5vw, 80px); align-items: start; }
.gallery { display: grid; gap: 16px; }
.gallery .main { overflow: hidden; background: var(--paper-2); }
.gallery .main img { width: 100%; aspect-ratio: 3 / 4; object-fit: cover; cursor: zoom-in; transition: transform .8s var(--ease); }
.gallery .main:hover img { transform: scale(1.03); }
.thumbs { display: flex; gap: 12px; }
.thumbs button { padding: 0; border: 1px solid transparent; background: none; width: 88px; overflow: hidden; transition: border-color .3s; }
.thumbs button.is-on { border-color: var(--ink); }
.thumbs img { width: 100%; aspect-ratio: 3 / 4; object-fit: cover; }
.info { position: sticky; top: 92px; }
.info .crumb { font-size: 10px; letter-spacing: .3em; color: var(--muted); margin-bottom: 20px; }
.info h1 { font-family: var(--serif); font-weight: 400; font-size: clamp(26px, 3.4vw, 42px); letter-spacing: .1em; margin: 0 0 12px; line-height: 1.35; }
.info .sub { color: var(--muted); font-size: 12px; letter-spacing: .2em; margin-bottom: 26px; }
.info .desc { color: var(--ink-2); line-height: 2.1; margin-bottom: 28px; }
.info .sizes { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 28px; }
.info .sizes span {
  border: 1px solid var(--line); padding: 9px 18px; font-size: 12px; letter-spacing: .16em;
  transition: all .3s var(--ease);
}
.info .sizes span:hover, .info .sizes span.is-on { border-color: var(--ink); background: var(--ink); color: var(--paper); }
.acc { border-top: 1px solid var(--line); margin-top: 10px; }
.acc details { border-bottom: 1px solid var(--line); }
.acc summary {
  list-style: none; cursor: pointer; padding: 20px 0; display: flex; justify-content: space-between;
  font-size: 12px; letter-spacing: .22em;
}
.acc summary::-webkit-details-marker { display: none; }
.acc summary::after { content: "+"; font-size: 16px; transition: transform .35s var(--ease); }
.acc details[open] summary::after { transform: rotate(45deg); }
.acc .body { padding: 0 0 22px; color: var(--muted); font-size: 13px; line-height: 2.1; }
.sizetable { width: 100%; border-collapse: collapse; font-size: 12px; }
.sizetable th, .sizetable td { border: 1px solid var(--line); padding: 10px 8px; text-align: center; letter-spacing: .1em; }
.sizetable th { background: var(--paper-2); font-weight: 400; }
.drawer-actions { display: flex; gap: 12px; margin-top: 30px; flex-wrap: wrap; }

/* ---------- 灯箱 ---------- */
.lightbox {
  position: fixed; inset: 0; z-index: 200; background: rgba(20, 18, 16, .94);
  display: grid; place-items: center; opacity: 0; pointer-events: none; transition: opacity .4s var(--ease);
}
.lightbox.open { opacity: 1; pointer-events: auto; }
.lightbox img { max-width: 92vw; max-height: 88vh; object-fit: contain; }
.lightbox .close, .lightbox .prev, .lightbox .next {
  position: absolute; background: none; border: 0; color: rgba(247, 244, 238, .8); font-size: 24px;
  width: 56px; height: 56px; transition: color .3s;
}
.lightbox .close:hover, .lightbox .prev:hover, .lightbox .next:hover { color: #fff; }
.lightbox .close { top: 24px; right: 28px; }
.lightbox .prev { left: 20px; top: 50%; transform: translateY(-50%); }
.lightbox .next { right: 20px; top: 50%; transform: translateY(-50%); }

/* ---------- 提示 ---------- */
.toast {
  position: fixed; left: 50%; bottom: 36px; transform: translate(-50%, 20px); z-index: 300;
  background: var(--ink); color: var(--paper); padding: 12px 26px; font-size: 12px; letter-spacing: .18em;
  opacity: 0; pointer-events: none; transition: all .4s var(--ease);
}
.toast.show { opacity: 1; transform: translate(-50%, 0); }

/* ---------- 响应式 ---------- */
@media (max-width: 900px) {
  .nav-links a:not(.nav-admin) { display: none; }
  /* 手机上分类条要让开顶部固定导航，否则品牌名和 BACKSTAGE 会被分类字压住 */
  .catbar { top: 79px; z-index: 50; }
  .detail-grid { grid-template-columns: 1fr; }
  .note { grid-template-columns: 1fr; }
  .hero { grid-template-columns: 1fr; padding-top: 100px; }
  .hero-media { height: 52svh; }
  .hero-media img { object-position: center 22%; }
  .hero-copy h1 { font-size: clamp(40px, 12vw, 72px); }
  .hero-copy p { font-size: 13px; }
  .looks { grid-template-columns: 1fr 1fr; }
  .look--wide { grid-column: span 2; }
  .look--wide .look-pic img { aspect-ratio: 3 / 4; }
  .look-cap i { display: none; }
}
@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
  .card { opacity: 1; transform: none; }
}