/* =========================================================
   渥古 WOGU · 宋式美学灯具 官网
   设计系统 style.css  v2
   调性：温润宣纸底 · 松烟墨 · 哑铜金 · 朱砂印章 · 黛青
   原则：大留白 · 细线框 · 柔阴影 · 松字距 · 衬线标题
   ========================================================= */

:root {
  /* —— 色彩 · 宋式雅调 —— */
  --paper:      #f6f1e7;   /* 宣纸白 */
  --paper-2:    #efe8da;   /* 分区·略深 */
  --paper-3:    #e9dfcd;   /* 卡片底 */
  --ink:        #26211b;   /* 松烟墨 */
  --ink-soft:   #57503f;   /* 次级文字 */
  --ink-faint:  #8e8474;   /* 弱化文字 */
  --cinnabar:   #a03a26;   /* 朱砂·印章点睛 */
  --cinnabar-2: #b54a30;   /* 朱砂·亮 */
  --bronze:     #a8895a;   /* 哑铜金·主强调 */
  --bronze-2:   #bfa375;   /* 铜金·亮 */
  --celadon:    #7f9187;   /* 黛青·青瓷冷平衡 */
  --line:       #ddd2be;   /* 细线 */
  --line-soft:  #e7ddc9;   /* 更细线 */

  /* —— 字体 —— */
  --serif: "Noto Serif SC", "Source Han Serif SC", "Songti SC", "STSong", "SimSun", serif;
  --sans:  "Noto Sans SC", "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", system-ui, sans-serif;

  /* —— 度量 —— */
  --maxw: 1180px;
  --gap: 26px;
  --radius-sm: 6px;
  --radius: 12px;
  --radius-lg: 18px;

  /* —— 阴影 · 宋式空气感（大模糊·低透明） —— */
  --shadow-xs: 0 1px 3px rgba(38, 33, 27, 0.05);
  --shadow:    0 12px 38px rgba(38, 33, 27, 0.09);
  --shadow-lg: 0 24px 64px rgba(38, 33, 27, 0.14);

  /* —— 动效 —— */
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
  --t-fast: 0.22s var(--ease);
  --t-norm: 0.34s var(--ease);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--sans);
  color: var(--ink);
  background: var(--paper);
  line-height: 1.85;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  /* 宣纸细腻噪点 + 顶部暖光晕 */
  background-image:
    radial-gradient(rgba(168, 137, 90, 0.05) 1px, transparent 1px),
    radial-gradient(ellipse 120% 40% at 50% -10%, rgba(191, 163, 117, 0.10), transparent 60%);
  background-size: 20px 20px, 100% 100%;
}

::selection { background: rgba(160, 58, 38, 0.16); }

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }

/* 容器 */
.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }

/* 工具类 */
.serif { font-family: var(--serif); }
.cinnabar { color: var(--cinnabar); }
.celadon { color: var(--celadon); }

/* =========================================================
   顶部导航 · 毛玻璃 + 细线
   ========================================================= */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(246, 241, 231, 0.86);
  backdrop-filter: blur(14px) saturate(1.1);
  -webkit-backdrop-filter: blur(14px) saturate(1.1);
  border-bottom: 1px solid var(--line);
}
.nav {
  display: flex; align-items: center; justify-content: space-between;
  height: 74px;
}
.brand { display: flex; align-items: center; gap: 14px; }
.brand .logo {
  width: 42px; height: 42px; border-radius: 50%;
  border: 1.5px solid var(--ink);
  display: grid; place-items: center;
  font-family: var(--serif); font-size: 20px; color: var(--ink);
  overflow: hidden; background: var(--paper);
  box-shadow: inset 0 0 0 2px rgba(160, 58, 38, 0.06);
}
.brand .logo img { width: 100%; height: 100%; object-fit: contain; padding: 3px; }
.brand .name { font-family: var(--serif); font-size: 23px; letter-spacing: 8px; font-weight: 600; }
.brand .name small { display: block; font-family: var(--sans); font-size: 10px; letter-spacing: 3.5px; color: var(--ink-faint); margin-top: 3px; }

.nav-links { display: flex; gap: 32px; align-items: center; }
.nav-links a {
  font-size: 15px; letter-spacing: 2.5px; color: var(--ink-soft);
  position: relative; padding: 4px 0; transition: color var(--t-fast);
}
.nav-links a::after {
  content: ""; position: absolute; left: 50%; bottom: -3px;
  transform: translateX(-50%);
  width: 0; height: 2px; background: var(--cinnabar);
  transition: width var(--t-norm);
}
.nav-links a:hover, .nav-links a.active { color: var(--ink); }
.nav-links a:hover::after, .nav-links a.active::after { width: 100%; }
.nav-cta {
  border: 1px solid var(--cinnabar); color: var(--cinnabar);
  padding: 9px 22px; border-radius: 999px; font-size: 14px; letter-spacing: 2px;
  transition: all var(--t-fast);
}
.nav-cta:hover { background: var(--cinnabar); color: #fff; box-shadow: var(--shadow); }

.nav-toggle { display: none; background: none; border: none; cursor: pointer; }
.nav-toggle span { display: block; width: 24px; height: 2px; background: var(--ink); margin: 5px 0; transition: .3s; }

/* =========================================================
   通用区块
   ========================================================= */
section { padding: 104px 0; }
.section-head { text-align: center; margin-bottom: 56px; }
.section-head .eyebrow {
  font-size: 13px; letter-spacing: 8px; color: var(--cinnabar);
  text-transform: uppercase; margin-bottom: 16px; font-weight: 500;
}
.section-head h2 {
  font-family: var(--serif); font-size: 38px; letter-spacing: 5px;
  margin: 0 0 16px; font-weight: 600;
}
.section-head p { color: var(--ink-soft); max-width: 640px; margin: 0 auto; }

/* 按钮 · 宋式造型 */
.btn {
  display: inline-block; padding: 15px 36px; border-radius: 999px;
  font-size: 15px; letter-spacing: 3px; cursor: pointer; border: 1px solid transparent;
  transition: all var(--t-fast);
}
.btn-primary { background: var(--cinnabar); color: #fff; box-shadow: 0 8px 22px rgba(160, 58, 38, 0.25); }
.btn-primary:hover { background: var(--cinnabar-2); transform: translateY(-2px); box-shadow: 0 14px 32px rgba(160, 58, 38, 0.32); }
.btn-ghost { border-color: var(--ink); color: var(--ink); }
.btn-ghost:hover { background: var(--ink); color: var(--paper); transform: translateY(-2px); }

/* 印章装饰 */
.seal {
  display: inline-grid; place-items: center;
  width: 48px; height: 48px; border: 2px solid var(--cinnabar);
  color: var(--cinnabar); border-radius: 8px; font-family: var(--serif);
  font-size: 21px; transform: rotate(-3deg); box-shadow: var(--shadow-xs);
}

/* =========================================================
   首页 Hero · 宋式留白
   ========================================================= */
.hero {
  position: relative; min-height: 84vh; display: flex; align-items: center;
  overflow: hidden;
  background:
    linear-gradient(180deg, rgba(246,241,231,.35), rgba(246,241,231,.94)),
    var(--paper-2);
}
.hero-bg {
  position: absolute; inset: 0; object-fit: cover; width: 100%; height: 100%;
  opacity: .92; z-index: 0;
}
.hero .wrap { position: relative; z-index: 1; }
.hero-inner { max-width: 660px; }
.hero .eyebrow { font-size: 14px; letter-spacing: 10px; color: var(--cinnabar); margin-bottom: 26px; font-weight: 500; }
.hero h1 {
  font-family: var(--serif); font-size: 62px; line-height: 1.22;
  letter-spacing: 7px; margin: 0 0 26px; font-weight: 600;
}
.hero h1 .accent { color: var(--cinnabar); }
.hero p.lead { font-size: 18px; color: var(--ink-soft); margin: 0 0 42px; line-height: 2; }
.hero-actions { display: flex; gap: 18px; flex-wrap: wrap; }
.hero-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 64px; align-items: center; }
.hero-visual {
  position: relative; border-radius: var(--radius-lg); overflow: hidden;
  border: 1px solid var(--line); background: var(--paper-2);
  aspect-ratio: 4/5; box-shadow: var(--shadow-lg);
}
.hero-visual > img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; z-index: 1; }
.hero-mark {
  position: absolute; inset: 0; z-index: 0;
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 22px;
  background: linear-gradient(180deg, var(--paper) 0%, var(--paper-2) 100%);
}
.hero-mark img { width: 104px; height: 104px; object-fit: contain; }
.hero-mark .mark-text { font-family: var(--serif); font-size: 30px; letter-spacing: 10px; color: var(--ink); }
.hero-mark .mark-text small { display: block; font-family: var(--sans); font-size: 11px; letter-spacing: 5px; color: var(--ink-faint); margin-top: 8px; }

/* 宋式装饰 · 竖排水印字（右侧极淡，呼吸感） */
.hero-vertical {
  position: absolute;
  right: 2.5%;
  top: 50%;
  transform: translateY(-50%);
  writing-mode: vertical-rl;
  font-family: var(--serif);
  font-size: 132px;
  font-weight: 600;
  letter-spacing: 34px;
  color: rgba(168, 137, 90, 0.10);
  z-index: 0;
  pointer-events: none;
  user-select: none;
  line-height: 1;
}
/* 标题旁朱砂印章 */
.hero-title-wrap { position: relative; display: inline-block; }
.hero-seal-img {
  position: absolute;
  right: -16px;
  bottom: -14px;
  width: 60px; height: 60px;
  object-fit: contain;
  transform: rotate(-6deg);
  opacity: .92;
  filter: drop-shadow(0 4px 10px rgba(160,58,38,.18));
}

/* 场景方案 */
.scenes-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--gap); }
.scene-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg);
  overflow: hidden; transition: all var(--t-norm);
}
.scene-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: var(--bronze-2); }
.scene-thumb {
  position: relative; display: block; aspect-ratio: 4/3; background: var(--paper-2);
  border-bottom: 1px solid var(--line); overflow: hidden;
}
.scene-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s var(--ease); }
.scene-card:hover .scene-thumb img { transform: scale(1.05); }
.scene-thumb .ph {
  position: absolute; inset: 0; display: none; place-items: center;
  font-family: var(--serif); color: var(--ink-faint); letter-spacing: 2px; text-align: center;
}
.scene-thumb.noimg .ph { display: grid; }
.scene-tag {
  position: absolute; left: 18px; top: 18px;
  background: rgba(38,33,27,.72); color: var(--paper); font-family: var(--serif);
  letter-spacing: 3px; font-size: 14px; padding: 6px 16px; border-radius: 999px;
  backdrop-filter: blur(4px);
}
.scene-body { padding: 26px 28px 30px; }
.scene-body h3 { font-family: var(--serif); font-size: 21px; letter-spacing: 3px; margin: 0 0 12px; }
.scene-body p { color: var(--ink-soft); font-size: 14px; margin: 0 0 16px; line-height: 1.9; }
.link-arrow { color: var(--cinnabar); font-size: 14px; letter-spacing: 1px; border-bottom: 1px dashed var(--cinnabar); padding-bottom: 3px; transition: all var(--t-fast); }
.link-arrow:hover { border-bottom-style: solid; }

/* 首页快速分类 */
.quick-cats { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--gap); margin-top: 8px; }
.cat-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg);
  padding: 36px 30px; transition: all var(--t-norm); cursor: pointer;
}
.cat-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: var(--bronze-2); }
.cat-card .ico { font-size: 26px; color: var(--cinnabar); margin-bottom: 16px; }
.cat-card h3 { font-family: var(--serif); font-size: 21px; letter-spacing: 3px; margin: 0 0 10px; }
.cat-card p { color: var(--ink-faint); font-size: 14px; margin: 0; }

/* 理念三栏 */
.values { display: grid; grid-template-columns: repeat(3, 1fr); gap: 48px; }
.value-item { text-align: center; }
.value-item .num { font-family: var(--serif); font-size: 44px; color: var(--bronze); }
.value-item h3 { font-family: var(--serif); font-size: 21px; letter-spacing: 3px; margin: 14px 0 12px; }
.value-item p { color: var(--ink-soft); font-size: 15px; }

/* 首页产品预览 */
.preview-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--gap); }

/* 通用产品卡 */
.product-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg);
  overflow: hidden; transition: all var(--t-norm); cursor: pointer;
}
.product-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: var(--bronze-2); }
.product-card .thumb {
  aspect-ratio: 4/5; background: var(--paper-2);
  display: grid; place-items: center; position: relative; overflow: hidden;
  border-bottom: 1px solid var(--line);
}
.product-card .thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s var(--ease); }
.product-card:hover .thumb img { transform: scale(1.05); }
.product-card .thumb .ph {
  font-family: var(--serif); color: var(--ink-faint); font-size: 15px; letter-spacing: 2px;
  text-align: center; padding: 20px;
}
.product-card .thumb.noimg .ph { display: grid; }
.product-card .body { padding: 22px 24px 26px; }
.product-card .body .tagline { font-size: 12px; color: var(--cinnabar); letter-spacing: 2.5px; }
.product-card .body h3 { font-family: var(--serif); font-size: 20px; letter-spacing: 2px; margin: 8px 0 10px; font-weight: 600; }
.product-card .body .meta { font-size: 13px; color: var(--ink-faint); }
.product-card .body .price { margin-top: 14px; color: var(--cinnabar); font-family: var(--serif); font-size: 18px; }

/* 带图占位（hero/故事大图） */
.figure {
  position: relative; border-radius: var(--radius-lg); overflow: hidden;
  background: var(--paper-2); border: 1px solid var(--line);
  display: grid; place-items: center; min-height: 340px; box-shadow: var(--shadow);
}
.figure img { width: 100%; height: 100%; object-fit: cover; }
.figure .ph {
  font-family: var(--serif); color: var(--ink-faint); letter-spacing: 3px;
  text-align: center; padding: 30px;
}
.figure .ph small { display: block; font-family: var(--sans); letter-spacing: 1px; margin-top: 12px; color: var(--ink-faint); font-size: 12px; }

/* 双栏图文 */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; }
.split.reverse { direction: rtl; }
.split.reverse > * { direction: ltr; }
.split h2 { font-family: var(--serif); font-size: 32px; letter-spacing: 3px; margin: 0 0 20px; font-weight: 600; }
.split p { color: var(--ink-soft); margin: 0 0 18px; line-height: 1.95; }
.split .lead-q { font-family: var(--serif); font-size: 20px; color: var(--ink); line-height: 1.9; }

/* =========================================================
   产品页筛选
   ========================================================= */
.filter-bar { background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg); padding: 30px 32px; margin-bottom: 44px; box-shadow: var(--shadow-xs); }
.filter-group { margin-bottom: 20px; }
.filter-group:last-child { margin-bottom: 0; }
.filter-group .label { font-size: 13px; letter-spacing: 3px; color: var(--ink-faint); margin-bottom: 14px; display: flex; align-items: center; gap: 12px; }
.filter-group .label::before { content: ""; width: 16px; height: 2px; background: var(--cinnabar); display: inline-block; }
.chips { display: flex; flex-wrap: wrap; gap: 11px; }
.chip {
  border: 1px solid var(--line); background: var(--paper); color: var(--ink-soft);
  padding: 8px 18px; border-radius: 999px; font-size: 14px; letter-spacing: 1px; cursor: pointer;
  transition: all var(--t-fast);
}
.chip:hover { border-color: var(--bronze); color: var(--ink); }
.chip.active { background: var(--ink); color: var(--paper); border-color: var(--ink); }
.filter-meta { display: flex; justify-content: space-between; align-items: center; margin-bottom: 24px; color: var(--ink-faint); font-size: 14px; letter-spacing: 1px; }
.filter-meta .reset { cursor: pointer; color: var(--cinnabar); border-bottom: 1px dashed var(--cinnabar); padding-bottom: 2px; }
.products-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--gap); }
.empty { grid-column: 1/-1; text-align: center; color: var(--ink-faint); padding: 70px 0; font-family: var(--serif); letter-spacing: 3px; }

/* =========================================================
   品牌故事时间线
   ========================================================= */
.story-hero { text-align: center; padding: 108px 0 64px; }
.story-hero h1 { font-family: var(--serif); font-size: 50px; letter-spacing: 7px; margin: 0 0 20px; font-weight: 600; }
.story-hero p { color: var(--ink-soft); max-width: 660px; margin: 0 auto; line-height: 1.95; }

.timeline { max-width: 780px; margin: 64px auto 0; position: relative; padding-left: 34px; }
.timeline::before { content: ""; position: absolute; left: 8px; top: 6px; bottom: 6px; width: 2px; background: var(--line); }
.tl-item { position: relative; margin-bottom: 44px; }
.tl-item::before { content: ""; position: absolute; left: -34px; top: 6px; width: 16px; height: 16px; border-radius: 50%; background: var(--paper); border: 3px solid var(--cinnabar); }
.tl-item .year { font-family: var(--serif); color: var(--cinnabar); font-size: 19px; letter-spacing: 2px; }
.tl-item h3 { font-family: var(--serif); font-size: 21px; letter-spacing: 2px; margin: 8px 0 10px; }
.tl-item p { color: var(--ink-soft); margin: 0; line-height: 1.9; }

/* =========================================================
   联系 / 购买
   ========================================================= */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: start; }
.contact-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg); padding: 34px; margin-bottom: 22px; box-shadow: var(--shadow-xs); }
.contact-card h3 { font-family: var(--serif); font-size: 20px; letter-spacing: 2px; margin: 0 0 14px; display: flex; align-items: center; gap: 12px; }
.contact-card h3 .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--cinnabar); }
.contact-card p { color: var(--ink-soft); margin: 0; font-size: 15px; line-height: 1.9; }
.contact-card .big { font-family: var(--serif); font-size: 22px; color: var(--ink); letter-spacing: 1px; }

.form-row { margin-bottom: 20px; }
.form-row label { display: block; font-size: 13px; letter-spacing: 2px; color: var(--ink-faint); margin-bottom: 9px; }
.form-row input, .form-row textarea {
  width: 100%; padding: 14px 16px; border: 1px solid var(--line); border-radius: var(--radius-sm);
  background: var(--paper); font-family: var(--sans); font-size: 15px; color: var(--ink);
  transition: all var(--t-fast);
}
.form-row input:focus, .form-row textarea:focus { outline: none; border-color: var(--bronze); box-shadow: 0 0 0 4px rgba(168,137,90,.12); }
.form-note { font-size: 13px; color: var(--ink-faint); margin-top: 12px; }

/* =========================================================
   页脚 · 墨底
   ========================================================= */
.site-footer { background: var(--ink); color: #d6cbb8; padding: 64px 0 32px; margin-top: 48px; }
.footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr; gap: 40px; }
.site-footer .f-brand .name { font-family: var(--serif); font-size: 24px; letter-spacing: 8px; color: #fff; }
.site-footer .f-brand p { color: #b3a892; font-size: 14px; margin: 16px 0 0; max-width: 290px; line-height: 1.9; }
.site-footer h4 { font-size: 14px; letter-spacing: 4px; color: #fff; margin: 0 0 18px; }
.site-footer ul { list-style: none; padding: 0; margin: 0; }
.site-footer ul li { margin-bottom: 12px; font-size: 14px; }
.site-footer ul li a:hover { color: #fff; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.12); margin-top: 44px; padding-top: 24px; text-align: center; font-size: 13px; color: #8d8474; letter-spacing: 1px; }

/* =========================================================
   FAQ 常见问题
   ========================================================= */
.faq-list { max-width: 840px; margin: 0 auto; }
.faq-item { border: 1px solid var(--line); border-radius: var(--radius-lg); background: #fff; margin-bottom: 16px; overflow: hidden; transition: all var(--t-fast); box-shadow: var(--shadow-xs); }
.faq-item:hover { border-color: var(--bronze); }
.faq-item summary { list-style: none; cursor: pointer; padding: 22px 28px; font-family: var(--serif); font-size: 18px; letter-spacing: 2px; color: var(--ink); display: flex; justify-content: space-between; align-items: center; gap: 18px; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary .q { flex: 1; }
.faq-item summary .ico { width: 28px; height: 28px; flex: none; border: 1px solid var(--line); border-radius: 50%; display: grid; place-items: center; color: var(--cinnabar); font-size: 17px; line-height: 1; transition: .25s; }
.faq-item[open] summary .ico { background: var(--cinnabar); color: #fff; border-color: var(--cinnabar); transform: rotate(45deg); }
.faq-item .answer { padding: 0 28px 26px; color: var(--ink-soft); font-size: 15px; line-height: 1.9; }
.faq-item .answer p { margin: 0; }
.faq-cta { text-align: center; margin-top: 56px; }

/* =========================================================
   产品详情页 detail.html
   ========================================================= */
.detail-wrap { max-width: var(--maxw); margin: 0 auto; padding: 40px 24px 88px; }
.breadcrumb { font-size: 13px; color: var(--ink-faint); letter-spacing: 1px; margin-bottom: 32px; }
.breadcrumb a { color: var(--ink-soft); border-bottom: 1px dashed var(--line); padding-bottom: 1px; transition: all var(--t-fast); }
.breadcrumb a:hover { color: var(--cinnabar); border-color: var(--cinnabar); }

.detail-grid { display: grid; grid-template-columns: 1.25fr 1fr; gap: 52px; align-items: start; }

.gallery-main { position: relative; border-radius: var(--radius-lg); overflow: hidden; background: var(--paper-2); border: 1px solid var(--line); aspect-ratio: 1/1; box-shadow: var(--shadow-lg); }
.gallery-main img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; transition: opacity .3s; }
.gallery-main .ph { position: absolute; inset: 0; display: none; place-items: center; font-family: var(--serif); color: var(--ink-faint); letter-spacing: 3px; }
.gallery-main.noimg .ph { display: grid; }
.gallery-thumbs { display: flex; gap: 12px; margin-top: 16px; flex-wrap: wrap; }
.gallery-thumbs .thumb { width: 78px; height: 78px; border-radius: var(--radius-sm); overflow: hidden; border: 2px solid var(--line); cursor: pointer; background: var(--paper-2); transition: all var(--t-fast); flex: none; }
.gallery-thumbs .thumb img { width: 100%; height: 100%; object-fit: cover; }
.gallery-thumbs .thumb.active { border-color: var(--cinnabar); }
.gallery-thumbs .thumb:hover { border-color: var(--bronze); }

.info { padding-top: 6px; }
.info .series { font-size: 13px; letter-spacing: 5px; color: var(--cinnabar); margin-bottom: 14px; }
.info h1 { font-family: var(--serif); font-size: 40px; letter-spacing: 3px; margin: 0 0 18px; font-weight: 600; line-height: 1.28; }
.info .tagline { font-size: 17px; color: var(--ink-soft); margin: 0 0 30px; line-height: 1.9; }

.info .meta-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px 26px; margin-bottom: 36px; padding: 26px 28px; border: 1px solid var(--line); border-radius: var(--radius-lg); background: #fff; box-shadow: var(--shadow-xs); }
.info .meta-grid .item { display: flex; flex-direction: column; gap: 7px; }
.info .meta-grid .item b { font-size: 12px; letter-spacing: 2px; color: var(--ink-faint); font-weight: 500; }
.info .meta-grid .item i { font-family: var(--serif); font-size: 19px; color: var(--ink); font-style: normal; letter-spacing: 1px; }

.sku-section h3, .detail-imgs-section h3, .related-section h3 { font-family: var(--serif); font-size: 21px; letter-spacing: 3px; margin: 0 0 20px; color: var(--ink); display: flex; align-items: center; gap: 12px; }
.sku-section h3::before, .detail-imgs-section h3::before, .related-section h3::before { content: ""; width: 16px; height: 2px; background: var(--cinnabar); display: inline-block; }
.sku-list { list-style: none; padding: 0; margin: 0 0 36px; display: grid; gap: 11px; }
.sku-list li { padding: 14px 20px; border: 1px solid var(--line); border-radius: var(--radius-sm); background: #fff; font-size: 14px; color: var(--ink-soft); display: flex; align-items: center; gap: 12px; transition: all var(--t-fast); }
.sku-list li::before { content: "·"; color: var(--cinnabar); font-size: 24px; line-height: 1; }
.sku-list li:hover { border-color: var(--bronze); background: var(--paper); }
.sku-list li.empty { color: var(--ink-faint); justify-content: center; font-family: var(--serif); letter-spacing: 2px; }
.sku-list li.empty::before { content: "—"; color: var(--ink-faint); }

.detail-cta { display: flex; gap: 18px; flex-wrap: wrap; margin-bottom: 14px; }
.detail-note { font-size: 13px; color: var(--ink-faint); margin-top: 10px; letter-spacing: 1px; }

.detail-imgs-section, .related-section { margin-top: 72px; }
.detail-imgs-list { display: grid; grid-template-columns: 1fr; gap: 16px; }
.detail-imgs-list img { width: 100%; border-radius: var(--radius-lg); border: 1px solid var(--line); background: var(--paper-2); }
.detail-imgs-list .ph { padding: 70px 20px; text-align: center; font-family: var(--serif); color: var(--ink-faint); letter-spacing: 2px; border: 1px dashed var(--line); border-radius: var(--radius-lg); }

.related-empty { color: var(--ink-faint); padding: 44px 0; text-align: center; font-family: var(--serif); letter-spacing: 2px; }

/* =========================================================
   联系页 · 二维码卡片
   ========================================================= */
.qr-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; }

.qr-card {
  position: relative;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: flex; flex-direction: column;
  transition: all var(--t-norm);
  box-shadow: var(--shadow-xs);
}
.qr-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: var(--bronze-2); }

.qr-head {
  display: flex; align-items: center; gap: 14px;
  padding: 24px 26px;
  color: #fff;
  position: relative; overflow: hidden;
}
.qr-head::after {
  content: ""; position: absolute; right: -30px; top: -30px;
  width: 120px; height: 120px; border-radius: 50%;
  background: rgba(255,255,255,0.08);
}
.qr-head .qr-icon {
  width: 44px; height: 44px; flex: none;
  border-radius: 12px;
  background: rgba(255,255,255,0.18);
  display: grid; place-items: center;
  color: #fff;
}
.qr-head .qr-icon svg { width: 22px; height: 22px; }
.qr-head .qr-tag { font-size: 11px; letter-spacing: 3px; opacity: 0.85; margin-bottom: 2px; }
.qr-head .qr-title { font-family: var(--serif); font-size: 19px; letter-spacing: 2px; }

.qr-head--taobao { background: linear-gradient(135deg, #ff7a45 0%, #ff5a1f 100%); }
.qr-head--wechat { background: linear-gradient(135deg, #2cc46c 0%, #07a957 100%); }
.qr-head--douyin { background: linear-gradient(135deg, #2a2a2e 0%, #0d0d0f 100%); }
.qr-head--douyin::before {
  content: ""; position: absolute; right: 16px; top: 50%; transform: translateY(-50%);
  width: 60px; height: 60px; border-radius: 50%;
  background: #fe2c55; opacity: 0.35; filter: blur(20px);
}

.qr-img {
  padding: 30px 24px 20px;
  display: grid; place-items: center;
  background: #faf6ee;
  border-bottom: 1px dashed var(--line);
}
.qr-img img {
  width: 220px; height: 220px;
  border-radius: 8px;
  background: #fff;
  padding: 8px;
  box-shadow: 0 4px 18px rgba(38, 33, 27, 0.08);
}

.qr-info { padding: 24px 26px 30px; flex: 1; display: flex; flex-direction: column; }
.qr-desc { color: var(--ink-soft); font-size: 14px; line-height: 1.9; margin: 0 0 14px; }
.qr-meta { color: var(--ink-soft); font-size: 13px; margin: 4px 0; display: flex; align-items: center; gap: 7px; }
.qr-meta::before { content: ""; width: 5px; height: 5px; border-radius: 50%; background: var(--cinnabar); flex: none; }
.qr-meta .big { font-family: var(--serif); font-size: 15px; color: var(--ink); letter-spacing: 1px; }
.qr-meta--muted { color: var(--ink-faint); font-size: 12px; margin-top: 8px; }
.qr-meta--muted::before { background: var(--line); }

.qr-link {
  display: inline-block;
  font-size: 13px; letter-spacing: 1px;
  color: var(--cinnabar);
  border-bottom: 1px dashed var(--cinnabar);
  padding-bottom: 2px;
  margin-top: auto;
  align-self: flex-start;
  transition: all var(--t-fast);
}
.qr-link:hover { color: var(--cinnabar-2); border-color: var(--cinnabar-2); }

/* =========================================================
   全站悬浮二维码入口
   ========================================================= */
.floating-qr {
  position: fixed;
  right: 24px;
  top: 50%;
  transform: translateY(-50%);
  display: flex;
  flex-direction: column;
  gap: 12px;
  z-index: 99;
}
.fq-item {
  position: relative;
  width: 52px; height: 52px;
  border-radius: 15px;
  display: grid; place-items: center;
  color: #fff; cursor: pointer;
  box-shadow: 0 6px 18px rgba(38, 33, 27, 0.16);
  transition: transform .25s, box-shadow .25s;
  text-decoration: none;
}
.fq-item:hover { transform: translateX(-4px) scale(1.06); box-shadow: 0 10px 26px rgba(38, 33, 27, 0.24); }
.fq-icon { width: 26px; height: 26px; display: grid; place-items: center; }
.fq-icon svg { width: 26px; height: 26px; }
.fq-taobao { background: linear-gradient(135deg, #ff7a45, #ff5a1f); }
.fq-wechat { background: linear-gradient(135deg, #2cc46c, #07a957); }
.fq-douyin {
  background:
    radial-gradient(circle at 78% 82%, rgba(254,44,85,0.6), transparent 55%),
    linear-gradient(135deg, #2a2a2e, #0d0d0f);
}
.fq-tag {
  position: absolute; right: 62px; top: 50%;
  transform: translate(8px, -50%);
  background: var(--ink); color: var(--paper);
  font-size: 13px; letter-spacing: 2px; padding: 8px 16px;
  border-radius: 8px; white-space: nowrap;
  opacity: 0; pointer-events: none;
  transition: opacity .25s, transform .25s;
}
.fq-tag::after { content: ""; position: absolute; right: -5px; top: 50%; transform: translateY(-50%) rotate(45deg); width: 10px; height: 10px; background: var(--ink); }
.fq-item:hover .fq-tag { opacity: 1; transform: translate(0, -50%); }
.fq-popup {
  position: absolute; right: 72px; top: 50%;
  transform: translate(10px, -50%);
  width: 226px; background: #fff; border-radius: 12px; overflow: hidden;
  box-shadow: 0 16px 44px rgba(38, 33, 27, 0.22);
  opacity: 0; pointer-events: none;
  transition: opacity .28s, transform .28s;
  display: flex; flex-direction: column;
}
.fq-popup-head { font-family: var(--serif); font-size: 14px; letter-spacing: 2px; color: #fff; padding: 12px 16px; text-align: center; display: block; }
.fq-taobao .fq-popup-head { background: linear-gradient(135deg, #ff7a45, #ff5a1f); }
.fq-wechat .fq-popup-head { background: linear-gradient(135deg, #2cc46c, #07a957); }
.fq-douyin .fq-popup-head { background: linear-gradient(135deg, #2a2a2e, #0d0d0f); }
.fq-popup img { width: 190px; height: 190px; margin: 16px auto 10px; border-radius: 6px; background: #fff; padding: 6px; box-shadow: 0 3px 12px rgba(38, 33, 27, 0.10); border: 1px solid var(--line); display: block; }
.fq-popup-sub { font-size: 12px; color: var(--ink-faint); letter-spacing: 1px; text-align: center; padding: 0 16px 16px; display: block; }
.fq-popup::after {
  content: ""; position: absolute; right: -7px; top: 50%;
  transform: translateY(-50%) rotate(45deg);
  width: 14px; height: 14px; background: #fff;
  border-top: 1px solid var(--line); border-right: 1px solid var(--line);
}
.fq-item:hover .fq-popup, .fq-item:focus .fq-popup {
  opacity: 1; pointer-events: auto; transform: translate(0, -50%);
}

/* =========================================================
   客户实拍 · 瀑布流画廊
   ========================================================= */
.review-wall {
  column-count: 3;
  column-gap: 18px;
}
.review-item {
  break-inside: avoid;
  margin: 0 0 18px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--paper-2);
  box-shadow: var(--shadow-xs);
  transition: box-shadow var(--t-norm), transform var(--t-norm);
}
.review-item:hover { box-shadow: var(--shadow-lg); transform: translateY(-4px); }
.review-item img {
  width: 100%;
  display: block;
  /* 轻量美化：提亮 + 增通透 + 微饱和，让返图更清晰好看 */
  filter: brightness(1.07) contrast(1.07) saturate(1.10);
  transition: transform .6s var(--ease);
}
.review-item:hover img { transform: scale(1.04); }

/* =========================================================
   响应式
   ========================================================= */
@media (max-width: 860px) {
  .nav-links {
    position: absolute; top: 74px; left: 0; right: 0;
    background: var(--paper); flex-direction: column; gap: 0;
    border-bottom: 1px solid var(--line); max-height: 0; overflow: hidden; transition: max-height .3s;
  }
  .nav-links.open { max-height: 340px; }
  .nav-links a { padding: 16px 24px; width: 100%; border-bottom: 1px solid var(--line); }
  .nav-links a::after { display: none; }
  .nav-cta { margin: 16px 24px; text-align: center; }
  .nav-toggle { display: block; }

  .hero h1 { font-size: 42px; letter-spacing: 4px; }
  .quick-cats, .values, .preview-grid, .products-grid, .scenes-grid, .hero-grid, .qr-grid, .detail-grid { grid-template-columns: 1fr; }
  .split, .contact-grid, .footer-grid { grid-template-columns: 1fr; gap: 36px; }
  .split.reverse { direction: ltr; }
  section { padding: 68px 0; }
  .section-head h2 { font-size: 30px; }
  .story-hero h1 { font-size: 36px; letter-spacing: 4px; }
  .detail-wrap { padding: 28px 20px 64px; }
  .review-wall { column-count: 2; column-gap: 12px; }
  .review-item { margin-bottom: 12px; }

  /* 悬浮二维码：移动端改为底部居中横排 */
  .floating-qr { right: auto; left: 50%; top: auto; bottom: 16px; transform: translateX(-50%); flex-direction: row; gap: 10px; }
  .fq-item { width: 48px; height: 48px; border-radius: 14px; }
  .fq-item:hover { transform: translateY(-4px) scale(1.05); }
  .fq-icon svg { width: 22px; height: 22px; }
  .fq-tag { display: none; }
  .fq-popup { right: auto; left: 50%; top: auto; bottom: 64px; transform: translate(-50%, 8px); width: 180px; }
  .fq-popup-head { font-size: 12px; padding: 10px 12px; }
  .fq-popup img { width: 140px; height: 140px; padding: 4px; }
  .fq-popup::after { right: auto; left: 50%; top: auto; bottom: -7px; transform: translateX(-50%) rotate(45deg); border-top: 0; border-right: 0; border-bottom: 1px solid var(--line); border-left: 1px solid var(--line); }
  .fq-item:hover .fq-popup { transform: translate(-50%, 0); }
}