/* ═══════════════════════════════════════════════════════════
   有麦鞋业 · GM.limit 官网样式
   风格：极简轻奢（黑灰主色 / 大量留白 / 直角为主 / 无多余装饰）
   ═══════════════════════════════════════════════════════════ */

:root {
  --ink:        #282C2E;   /* 主黑灰 */
  --ink-soft:   #3A4042;
  --text:       #333333;
  --text-sub:   #63666A;
  --text-muted: #9C9FA3;
  --line:       #EBEAE6;
  --bg:         #FFFFFF;
  --bg-soft:    #FAFAF8;
  --accent:     #1F3D34;   /* 墨绿（极少量点缀） */
  --max:        1180px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB",
               "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }

a { color: inherit; text-decoration: none; }

.wrap {
  width: 100%;
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 24px;
}

/* ═══ 顶部导航 ═══ */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: saturate(160%) blur(12px);
  -webkit-backdrop-filter: saturate(160%) blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color .25s ease, background .25s ease;
}
.site-header.is-scrolled {
  border-bottom-color: var(--line);
}
.header-inner {
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand { display: flex; align-items: center; gap: 12px; }
.brand__mark {
  width: 38px; height: 38px;
  display: flex; align-items: center; justify-content: center;
  background: var(--ink);
  color: #fff;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: .06em;
}
.brand__text { display: flex; flex-direction: column; line-height: 1.25; }
.brand__name { font-size: 16px; font-weight: 700; color: var(--ink); letter-spacing: .04em; }
.brand__sub  { font-size: 11px; color: var(--text-muted); font-style: normal; letter-spacing: .16em; }

.nav { display: flex; gap: 36px; }
.nav__link {
  font-size: 14.5px;
  color: var(--text-sub);
  letter-spacing: .02em;
  transition: color .2s ease;
  position: relative;
}
.nav__link:hover { color: var(--ink); }
.nav__link::after {
  content: '';
  position: absolute;
  left: 0; right: 100%;
  bottom: -6px;
  height: 1px;
  background: var(--ink);
  transition: right .28s cubic-bezier(.22,1,.36,1);
}
.nav__link:hover::after { right: 0; }

/* ═══ 首屏 ═══ */
.hero {
  position: relative;
  min-height: 86vh;
  display: flex;
  align-items: center;
  background: var(--bg-soft);
  overflow: hidden;
  padding: 120px 0 80px;
}
.hero__bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  opacity: 0;
  transition: opacity .6s ease;
}
.hero__bg.is-loaded { opacity: 1; }
.hero__mask {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(250,250,248,.72) 0%, rgba(250,250,248,.42) 45%, rgba(250,250,248,.86) 100%);
}
.hero__inner { position: relative; text-align: center; }
.hero__eyebrow {
  margin: 0 0 18px;
  font-size: 12px;
  letter-spacing: .34em;
  color: var(--text-muted);
  text-transform: uppercase;
}
.hero__title {
  margin: 0;
  font-size: clamp(30px, 5vw, 54px);
  font-weight: 700;
  letter-spacing: .06em;
  color: var(--ink);
  line-height: 1.28;
}
.hero__slogan {
  margin: 22px 0 0;
  font-size: clamp(14px, 1.6vw, 17px);
  color: var(--text-sub);
  letter-spacing: .08em;
}
.hero__actions {
  margin-top: 44px;
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 168px;
  height: 50px;
  padding: 0 34px;
  font-size: 15px;
  letter-spacing: .08em;
  border: 1px solid transparent;
  transition: all .22s ease;
  cursor: pointer;
}
.btn--solid { background: var(--ink); color: #fff; }
.btn--solid:hover { background: var(--ink-soft); }
.btn--ghost { border-color: rgba(40,44,46,.28); color: var(--ink); background: transparent; }
.btn--ghost:hover { border-color: var(--ink); }

/* ═══ 通用区块 ═══ */
.section { padding: 96px 0; }
.section--alt { background: var(--bg-soft); }

.section__head { text-align: center; margin-bottom: 56px; }
.section__title {
  margin: 0;
  font-size: clamp(22px, 2.6vw, 30px);
  font-weight: 700;
  color: var(--ink);
  letter-spacing: .1em;
}
.section__title::after {
  content: '';
  display: block;
  width: 40px;
  height: 2px;
  margin: 18px auto 0;
  background: var(--ink);
}
.section__desc {
  margin: 18px 0 0;
  font-size: 14px;
  color: var(--text-muted);
  letter-spacing: .04em;
}
.section__empty {
  text-align: center;
  color: var(--text-muted);
  font-size: 14px;
  padding: 40px 0;
}

/* ═══ 鞋款网格 ═══ */
.grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 26px;
}
.card {
  background: #fff;
  border: 1px solid var(--line);
  transition: transform .28s cubic-bezier(.22,1,.36,1), box-shadow .28s ease;
  overflow: hidden;
}
.card:hover {
  transform: translateY(-4px);
  box-shadow: 0 14px 34px rgba(31,31,31,.08);
}
.card__media {
  position: relative;
  width: 100%;
  aspect-ratio: 1 / 1;
  background: #F1F0EC;
  overflow: hidden;
}
.card__img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform .5s cubic-bezier(.22,1,.36,1);
}
.card:hover .card__img { transform: scale(1.045); }
.card__body { padding: 18px 18px 22px; }
.card__name {
  margin: 0;
  font-size: 15px;
  font-weight: 600;
  color: var(--ink);
  letter-spacing: .02em;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.card__brief {
  margin: 8px 0 0;
  font-size: 13px;
  color: var(--text-muted);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.card__price {
  margin: 12px 0 0;
  font-size: 16px;
  font-weight: 700;
  color: var(--ink);
}
.card__price small { font-size: 12px; font-weight: 400; color: var(--text-muted); margin-left: 8px; }

/* 骨架占位（数据加载中） */
.card--skeleton { height: 320px; background: linear-gradient(90deg,#F5F4F0 25%,#EFEEE9 37%,#F5F4F0 63%); background-size: 400% 100%; animation: shimmer 1.4s ease infinite; }
@keyframes shimmer { 0% { background-position: 100% 0; } 100% { background-position: 0 0; } }

/* ═══ 关于我们 ═══ */
.about {
  display: grid;
  grid-template-columns: 1.1fr .9fr;
  gap: 64px;
  align-items: center;
}
.about__text .section__title { text-align: left; }
.about__text .section__title::after { margin-left: 0; margin-right: auto; }
.about__text p { margin: 20px 0 0; color: var(--text-sub); font-size: 15px; }
.about__list { margin: 26px 0 0; padding: 0; list-style: none; }
.about__list li {
  position: relative;
  padding-left: 20px;
  margin-top: 12px;
  font-size: 15px;
  color: var(--text);
}
.about__list li::before {
  content: '';
  position: absolute;
  left: 0; top: 11px;
  width: 8px; height: 1px;
  background: var(--accent);
}
.about__media {
  position: relative;
  aspect-ratio: 4 / 5;
  background: #F1F0EC;
  overflow: hidden;
}
.about__media img { width: 100%; height: 100%; object-fit: cover; }
.about__placeholder {
  position: absolute; inset: 0;
  display: flex; align-items: center; justify-content: center;
  font-size: 15px;
  letter-spacing: .3em;
  color: rgba(40,44,46,.32);
}

/* ═══ 联系我们 ═══ */
.contact {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}
.contact__item {
  background: #fff;
  padding: 30px 34px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.contact__label { font-size: 12.5px; color: var(--text-muted); letter-spacing: .12em; }
.contact__value { font-size: 16px; color: var(--ink); font-weight: 500; }

/* ═══ 页脚 ═══ */
.site-footer {
  border-top: 1px solid var(--line);
  background: var(--bg-soft);
  padding: 44px 0 52px;
}
.footer-inner { text-align: center; }
.footer__company { margin: 0; font-size: 14px; color: var(--text-sub); letter-spacing: .06em; }
.footer__links {
  margin: 14px 0 0;
  font-size: 13px;
  color: var(--text-muted);
  display: flex;
  gap: 12px;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
}
.footer__links a { color: var(--text-muted); transition: color .2s ease; }
.footer__links a:hover { color: var(--ink); }
.footer__sep { color: var(--line); }
.footer__copy { margin: 16px 0 0; font-size: 12.5px; color: var(--text-muted); }

/* ═══ 响应式 ═══ */
@media (max-width: 1024px) {
  .grid { grid-template-columns: repeat(3, 1fr); }
  .about { grid-template-columns: 1fr; gap: 40px; }
  .about__media { aspect-ratio: 16 / 10; }
}
@media (max-width: 768px) {
  .header-inner { height: 62px; }
  .nav { gap: 20px; }
  .nav__link { font-size: 13.5px; }
  .hero { min-height: 74vh; padding: 100px 0 60px; }
  .section { padding: 64px 0; }
  .grid { grid-template-columns: repeat(2, 1fr); gap: 14px; }
  .card__body { padding: 14px 14px 18px; }
  .contact { grid-template-columns: 1fr; }
  .contact__item { padding: 22px 24px; }
}
@media (max-width: 480px) {
  .brand__sub { display: none; }
  .nav { gap: 14px; }
}