/* ============================================================
   精彩印刷官网 - 全站样式（升级版）
   对标：智盒包装 + 聚意印刷
   ============================================================ */

/* ── CSS 变量 ── */
:root {
  --primary: #E84B36;
  --primary-dark: #c93c29;
  --primary-light: #ff6b54;
  --secondary: #1A1A2E;
  --accent: #2563EB;
  --text-base: #1f2937;
  --text-muted: #6b7280;
  --text-light: #9ca3af;
  --bg-base: #ffffff;
  --bg-gray: #f8f9fb;
  --bg-dark: #111827;
  --border: #e5e7eb;
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --shadow-sm: 0 1px 3px rgba(0,0,0,.08);
  --shadow-md: 0 4px 12px rgba(0,0,0,.1);
  --shadow-lg: 0 8px 30px rgba(0,0,0,.12);
  --shadow-xl: 0 20px 60px rgba(0,0,0,.15);
  --transition: all .25s cubic-bezier(.4,0,.2,1);
  --font: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', system-ui, sans-serif;
  --header-h: 68px;
}

/* ── Reset ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body { font-family: var(--font); color: var(--text-base); background: var(--bg-base); line-height: 1.6; -webkit-font-smoothing: antialiased; }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; height: auto; display: block; }
input, button, textarea, select { font-family: inherit; font-size: inherit; }
ul { list-style: none; }
button { cursor: pointer; border: none; background: none; }

/* ── Container ── */
.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }

/* ── Buttons ── */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 6px; padding: 10px 22px; border-radius: var(--radius-sm); font-size: 14px; font-weight: 600; cursor: pointer; transition: var(--transition); border: 2px solid transparent; white-space: nowrap; }
.btn-primary { background: var(--primary); color: #fff; border-color: var(--primary); }
.btn-primary:hover { background: var(--primary-dark); border-color: var(--primary-dark); transform: translateY(-1px); box-shadow: 0 4px 12px rgba(232,75,54,.35); }
.btn-outline { background: transparent; color: var(--primary); border-color: var(--primary); }
.btn-outline:hover { background: var(--primary); color: #fff; transform: translateY(-1px); }
.btn-outline-white { background: transparent; color: #fff; border-color: rgba(255,255,255,.8); }
.btn-outline-white:hover { background: #fff; color: var(--text-base); }
.btn-sm { padding: 6px 14px; font-size: 13px; }
.btn-lg { padding: 14px 32px; font-size: 16px; }
.btn-xl { padding: 16px 48px; font-size: 18px; width: 100%; }

/* ── Section 通用 ── */
section { padding: 72px 0; }
.section-header { text-align: center; margin-bottom: 48px; }
.section-tag { display: inline-block; padding: 4px 14px; background: rgba(232,75,54,.1); color: var(--primary); border-radius: 20px; font-size: 13px; font-weight: 600; margin-bottom: 12px; }
.section-title { font-size: clamp(24px, 4vw, 36px); font-weight: 800; color: var(--secondary); margin-bottom: 12px; line-height: 1.3; }
.section-desc { font-size: 16px; color: var(--text-muted); max-width: 560px; margin: 0 auto; }
.section-more { text-align: center; margin-top: 40px; }

/* ============================================================
   顶部导航栏
   ============================================================ */
.site-header { position: fixed; top: 0; left: 0; right: 0; z-index: 1000; height: var(--header-h); background: rgba(255,255,255,.95); backdrop-filter: blur(12px); border-bottom: 1px solid var(--border); transition: box-shadow .3s; }
.site-header.scrolled { box-shadow: var(--shadow-md); }
.header-inner { height: 100%; display: flex; align-items: center; gap: 20px; }

/* Logo */
.logo { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.logo-text { font-size: 20px; font-weight: 800; color: var(--secondary); }
.logo svg { flex-shrink: 0; }

/* 主导航 */
.main-nav { display: flex; align-items: center; gap: 4px; flex: 1; }
.nav-link { padding: 6px 12px; border-radius: var(--radius-sm); font-size: 14px; color: var(--text-base); transition: var(--transition); position: relative; display: flex; align-items: center; gap: 4px; }
.nav-link:hover, .nav-link.active { color: var(--primary); background: rgba(232,75,54,.06); }
.nav-badge { display: inline-block; padding: 1px 6px; border-radius: 10px; font-size: 11px; font-weight: 700; }
.nav-badge:not(.new) { background: rgba(232,75,54,.12); color: var(--primary); }
.nav-badge.new { background: #10b981; color: #fff; animation: pulse 2s infinite; }
@keyframes pulse { 0%,100%{opacity:1} 50%{opacity:.7} }

/* 右侧区域 */
.header-right { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.header-phone { display: flex; align-items: center; gap: 5px; font-size: 14px; font-weight: 600; color: var(--text-base); }
.header-phone:hover { color: var(--primary); }
.btn-login { padding: 6px 14px; font-size: 13px; color: var(--text-base); border: 1px solid var(--border); border-radius: var(--radius-sm); }
.btn-login:hover { border-color: var(--primary); color: var(--primary); }
.btn-register { padding: 6px 14px; font-size: 13px; background: var(--secondary); color: #fff; border-radius: var(--radius-sm); }
.btn-register:hover { background: var(--primary); }

/* 用户下拉 */
.user-menu { position: relative; }
.btn-user { padding: 6px 12px; font-size: 13px; color: var(--text-base); border: 1px solid var(--border); border-radius: var(--radius-sm); cursor: pointer; }
.user-dropdown { display: none; position: absolute; right: 0; top: calc(100% + 6px); background: #fff; border: 1px solid var(--border); border-radius: var(--radius-md); box-shadow: var(--shadow-lg); min-width: 140px; overflow: hidden; z-index: 100; }
.user-menu:hover .user-dropdown { display: block; }
.user-dropdown a { display: block; padding: 10px 16px; font-size: 14px; color: var(--text-base); }
.user-dropdown a:hover { background: var(--bg-gray); color: var(--primary); }

/* 汉堡按钮 */
.hamburger { display: none; flex-direction: column; gap: 5px; padding: 8px; }
.hamburger span { display: block; width: 22px; height: 2px; background: var(--text-base); border-radius: 2px; transition: var(--transition); }
.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* 移动导航 */
.mobile-nav { display: none; flex-direction: column; background: #fff; border-top: 1px solid var(--border); padding: 12px 0; }
.mobile-nav.open { display: flex; }
.mobile-nav a { padding: 12px 24px; font-size: 15px; color: var(--text-base); border-bottom: 1px solid var(--bg-gray); }
.mobile-nav a:hover { color: var(--primary); background: var(--bg-gray); }

/* ============================================================
   Hero Banner 轮播
   ============================================================ */
.hero-banner { position: relative; margin-top: var(--header-h); overflow: hidden; height: 520px; }
.banner-slides { width: 100%; height: 100%; }
.banner-slide { position: absolute; inset: 0; opacity: 0; transition: opacity .6s ease; background-size: cover; background-position: center; display: flex; align-items: center; }
.banner-slide.active { opacity: 1; }
.banner-overlay { position: absolute; inset: 0; background: rgba(0,0,0,.5); }
.banner-content { position: relative; z-index: 1; display: grid; grid-template-columns: 1fr 320px; gap: 48px; align-items: center; }
.banner-tag { display: inline-block; padding: 5px 14px; background: rgba(255,255,255,.15); border: 1px solid rgba(255,255,255,.3); border-radius: 20px; color: #fff; font-size: 13px; margin-bottom: 16px; }
.banner-title { font-size: clamp(28px, 4vw, 48px); font-weight: 900; color: #fff; line-height: 1.2; margin-bottom: 16px; }
.banner-desc { font-size: 17px; color: rgba(255,255,255,.85); max-width: 460px; margin-bottom: 28px; }
.banner-btns { display: flex; gap: 14px; flex-wrap: wrap; }

/* Banner 卡片堆叠 */
.banner-card-stack { position: relative; height: 240px; }
.bcard { position: absolute; border-radius: var(--radius-md); display: flex; align-items: center; justify-content: center; font-weight: 700; font-size: 15px; box-shadow: var(--shadow-xl); transition: transform .3s; }
.bcard span { color: #fff; text-shadow: 0 1px 3px rgba(0,0,0,.3); }
.bcard-1 { width: 180px; height: 120px; background: linear-gradient(135deg, #E84B36, #ff7055); bottom: 0; left: 20px; transform: rotate(-3deg); }
.bcard-2 { width: 180px; height: 120px; background: linear-gradient(135deg, #2563eb, #60a5fa); bottom: 30px; left: 60px; transform: rotate(2deg); }
.bcard-3 { width: 180px; height: 120px; background: linear-gradient(135deg, #059669, #34d399); bottom: 60px; left: 100px; }
.banner-card-stack:hover .bcard-1 { transform: rotate(-5deg) translateY(4px); }
.banner-card-stack:hover .bcard-2 { transform: rotate(4deg) translateY(-4px); }
.banner-card-stack:hover .bcard-3 { transform: translateY(-8px); }

/* Banner 控制 */
.banner-btn { position: absolute; top: 50%; transform: translateY(-50%); width: 44px; height: 44px; background: rgba(255,255,255,.2); border-radius: 50%; color: #fff; font-size: 24px; display: flex; align-items: center; justify-content: center; z-index: 10; transition: var(--transition); cursor: pointer; }
.banner-btn:hover { background: rgba(255,255,255,.35); }
.banner-prev { left: 20px; }
.banner-next { right: 20px; }
.banner-dots { position: absolute; bottom: 16px; left: 50%; transform: translateX(-50%); display: flex; gap: 8px; z-index: 10; }
.banner-dot { width: 8px; height: 8px; border-radius: 50%; background: rgba(255,255,255,.5); transition: var(--transition); cursor: pointer; }
.banner-dot.active { background: #fff; width: 24px; border-radius: 4px; }
.banner-guide { position: absolute; bottom: 52px; left: 50%; transform: translateX(-50%); color: rgba(255,255,255,.8); font-size: 14px; z-index: 10; text-align: center; animation: bounce .8s infinite alternate; }
@keyframes bounce { from{transform:translateX(-50%) translateY(0)} to{transform:translateX(-50%) translateY(6px)} }

/* Animate classes */
.animate-up { opacity: 0; transform: translateY(24px); animation: fadeUp .6s forwards; }
.animate-up.delay-1 { animation-delay: .15s; }
.animate-up.delay-2 { animation-delay: .3s; }
.animate-up.delay-3 { animation-delay: .45s; }
@keyframes fadeUp { to { opacity:1; transform:translateY(0); } }
.animate-in { opacity: 0; transform: translateY(20px); }
.animate-in.visible { animation: fadeUp .5s forwards; }

/* ============================================================
   产品分类入口
   ============================================================ */
.category-section { background: var(--bg-gray); }
.category-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 16px; }
.category-card { display: flex; align-items: center; gap: 14px; padding: 20px 18px; background: #fff; border-radius: var(--radius-md); border: 2px solid var(--border); transition: var(--transition); cursor: pointer; }
.category-card:hover { border-color: var(--primary); box-shadow: var(--shadow-md); transform: translateY(-3px); }
.category-card-stock { background: linear-gradient(135deg, var(--secondary), #2d3748); color: #fff; border-color: transparent; }
.category-card-stock:hover { border-color: transparent; }
.cat-icon { font-size: 28px; flex-shrink: 0; }
.cat-info { flex: 1; min-width: 0; }
.cat-info h3 { font-size: 15px; font-weight: 700; margin-bottom: 2px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.cat-info p { font-size: 12px; color: var(--text-muted); }
.category-card-stock .cat-info p { color: rgba(255,255,255,.65); }
.cat-arrow { font-size: 18px; color: var(--text-light); flex-shrink: 0; transition: var(--transition); }
.category-card:hover .cat-arrow { color: var(--primary); transform: translateX(4px); }
.category-card-stock .cat-arrow { color: rgba(255,255,255,.5); }

/* ============================================================
   服务内容区
   ============================================================ */
.service-section { background: #fff; }
.service-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.service-card { border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-md); transition: var(--transition); }
.service-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-xl); }
.service-img { height: 200px; position: relative; display: flex; align-items: flex-end; }
.service-img-1 { background: linear-gradient(135deg, #667eea, #764ba2); }
.service-img-2 { background: linear-gradient(135deg, #f093fb, #f5576c); }
.service-img-3 { background: linear-gradient(135deg, #4facfe, #00f2fe); }
.service-img-overlay { position: absolute; inset: 0; background: rgba(0,0,0,.25); display: flex; align-items: flex-end; padding: 20px; }
.service-img-overlay span { color: #fff; font-size: 20px; font-weight: 800; }
.service-body { padding: 24px; }
.service-body h3 { font-size: 18px; font-weight: 800; margin-bottom: 10px; }
.service-body p { font-size: 14px; color: var(--text-muted); line-height: 1.7; margin-bottom: 16px; }
.service-link { font-size: 14px; color: var(--primary); font-weight: 600; }
.service-link:hover { text-decoration: underline; }

/* ============================================================
   通用现货
   ============================================================ */
.stock-section { background: var(--bg-gray); }
.stock-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); gap: 16px; }
.stock-card { background: #fff; border-radius: var(--radius-md); overflow: hidden; border: 1px solid var(--border); transition: var(--transition); }
.stock-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: var(--primary); }
.stock-img { position: relative; height: 160px; background: var(--bg-gray); display: flex; align-items: center; justify-content: center; overflow: hidden; }
.stock-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .35s; }
.stock-card:hover .stock-img img { transform: scale(1.05); }
.stock-img-placeholder { font-size: 48px; color: var(--text-light); }
.stock-badge { position: absolute; top: 10px; left: 10px; padding: 3px 8px; background: var(--primary); color: #fff; border-radius: 4px; font-size: 11px; font-weight: 700; }
.stock-body { padding: 14px; }
.stock-body h4 { font-size: 13px; line-height: 1.4; margin-bottom: 8px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.stock-price-row { display: flex; align-items: baseline; gap: 6px; margin-bottom: 4px; }
.stock-price { font-size: 18px; font-weight: 800; color: var(--primary); }
.stock-original { font-size: 13px; color: var(--text-light); text-decoration: line-through; }
.stock-meta { font-size: 12px; color: var(--text-muted); }

/* ============================================================
   六大优势
   ============================================================ */
.adv-section { background: #fff; }
.adv-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.adv-card { padding: 32px 28px; border-radius: var(--radius-lg); border: 1px solid var(--border); text-align: center; transition: var(--transition); }
.adv-card:hover { border-color: var(--primary); box-shadow: var(--shadow-md); transform: translateY(-4px); }
.adv-icon { font-size: 40px; margin-bottom: 16px; }
.adv-card h3 { font-size: 18px; font-weight: 800; margin-bottom: 10px; color: var(--secondary); }
.adv-card p { font-size: 14px; color: var(--text-muted); line-height: 1.7; }

/* ============================================================
   数据统计
   ============================================================ */
.stats-section { background: var(--primary); }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); }
.stat-item { text-align: center; padding: 48px 24px; border-right: 1px solid rgba(255,255,255,.15); }
.stat-item:last-child { border-right: none; }
.stat-num { font-size: clamp(40px, 5vw, 60px); font-weight: 900; color: #fff; line-height: 1; display: inline-block; }
.stat-unit { display: inline-block; font-size: 20px; color: rgba(255,255,255,.8); font-weight: 700; margin-left: 2px; }
.stat-label { font-size: 14px; color: rgba(255,255,255,.75); margin-top: 8px; }

/* ============================================================
   购买流程
   ============================================================ */
.process-section { background: var(--bg-gray); }
.process-steps { display: flex; align-items: flex-start; gap: 0; flex-wrap: wrap; justify-content: center; }
.step { flex: 1; min-width: 120px; max-width: 160px; text-align: center; padding: 0 8px; }
.step-num { font-size: 11px; font-weight: 800; color: var(--text-light); letter-spacing: 1px; margin-bottom: 10px; }
.step-icon { font-size: 36px; margin-bottom: 10px; }
.step h3 { font-size: 15px; font-weight: 700; margin-bottom: 6px; }
.step p { font-size: 12px; color: var(--text-muted); line-height: 1.5; }
.step-arrow { align-self: center; font-size: 24px; color: var(--text-light); padding: 0 4px; margin-top: -30px; flex-shrink: 0; }
.process-cta { text-align: center; margin-top: 48px; }

/* ============================================================
   联系方式
   ============================================================ */
.contact-section { background: #fff; }
.contact-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; margin-bottom: 48px; }
.contact-card { text-align: center; padding: 36px 24px; border-radius: var(--radius-lg); background: var(--bg-gray); transition: var(--transition); }
.contact-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.contact-icon { font-size: 40px; margin-bottom: 14px; }
.contact-card h3 { font-size: 16px; font-weight: 700; margin-bottom: 10px; }
.contact-main { display: block; font-size: 18px; font-weight: 700; color: var(--primary); margin-bottom: 6px; }
.contact-card p { font-size: 13px; color: var(--text-muted); }

/* 快速留言 */
.quick-contact { max-width: 760px; margin: 0 auto; background: var(--bg-gray); border-radius: var(--radius-xl); padding: 40px; }
.quick-contact h3 { font-size: 22px; font-weight: 800; margin-bottom: 24px; text-align: center; }
.qf-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin-bottom: 14px; }
.quick-form input, .quick-form textarea { width: 100%; padding: 11px 14px; border: 1px solid var(--border); border-radius: var(--radius-sm); font-size: 14px; transition: var(--transition); }
.quick-form input:focus, .quick-form textarea:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(232,75,54,.1); }
.quick-form textarea { resize: vertical; margin-bottom: 14px; display: block; }
.quick-form button { display: block; margin: 0 auto; }
.qf-success { text-align: center; padding: 32px; font-size: 18px; color: #059669; font-weight: 600; }

/* ============================================================
   页脚
   ============================================================ */
.site-footer { background: var(--bg-dark); color: rgba(255,255,255,.75); padding: 60px 0 0; margin-top: 0; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr 1.5fr; gap: 40px; padding-bottom: 48px; border-bottom: 1px solid rgba(255,255,255,.1); }
.footer-brand { }
.footer-logo { display: flex; align-items: center; gap: 10px; color: #fff; font-size: 18px; font-weight: 800; margin-bottom: 16px; }
.footer-brand p { font-size: 14px; line-height: 1.7; margin-bottom: 16px; color: rgba(255,255,255,.6); }
.footer-contact-mini { display: flex; flex-direction: column; gap: 6px; font-size: 13px; color: rgba(255,255,255,.7); }
.footer-col h4 { color: #fff; font-size: 15px; font-weight: 700; margin-bottom: 16px; }
.footer-col a, .footer-col p { display: block; font-size: 14px; color: rgba(255,255,255,.6); margin-bottom: 8px; transition: color .2s; line-height: 1.6; }
.footer-col a:hover { color: var(--primary-light); }
.footer-bottom { display: flex; justify-content: space-between; align-items: center; padding: 20px 0; font-size: 13px; color: rgba(255,255,255,.4); }
.footer-bottom a { color: rgba(255,255,255,.4); }
.footer-bottom a:hover { color: var(--primary-light); }

/* ============================================================
   浮动客服
   ============================================================ */
.float-service { position: fixed; right: 20px; bottom: 100px; z-index: 899; display: flex; flex-direction: column; gap: 10px; }
.float-item { width: 48px; height: 48px; border-radius: 50%; background: var(--primary); color: #fff; display: flex; align-items: center; justify-content: center; cursor: pointer; box-shadow: var(--shadow-lg); transition: var(--transition); position: relative; }
.float-item:hover { transform: scale(1.1); background: var(--primary-dark); }
.float-wechat { background: #07c160; }
.float-wechat:hover { background: #06a854; }
.float-phone { background: var(--accent); }
.float-phone:hover { background: #1d4ed8; }
.float-top { background: var(--secondary); opacity: 0; pointer-events: none; transition: var(--transition); }
.float-top:hover { background: #111; }
.float-top.visible { opacity: 1; pointer-events: auto; }
.float-tooltip { display: none; position: absolute; right: 60px; top: 50%; transform: translateY(-50%); background: rgba(0,0,0,.85); color: #fff; padding: 8px 12px; border-radius: var(--radius-sm); white-space: nowrap; font-size: 13px; pointer-events: none; }
.float-tooltip strong { display: block; font-size: 13px; }
.float-tooltip span { font-size: 12px; opacity: .85; }
.float-item:hover .float-tooltip { display: block; }

/* ============================================================
   在线报价页
   ============================================================ */
/* Modern browsers: offer-page padding-top */
@supports selector(:has(*)) {
  body:has(.offer-page) { padding-top: var(--header-h); }
}
/* Fallback: applied via JS for older browsers */
.offer-breadcrumb { background: var(--bg-gray); border-bottom: 1px solid var(--border); padding: 10px 0; font-size: 13px; color: var(--text-muted); }
.offer-breadcrumb a { color: var(--text-muted); }
.offer-breadcrumb a:hover { color: var(--primary); }
.offer-breadcrumb span { margin: 0 6px; }
.offer-layout { display: grid; grid-template-columns: 300px 1fr; gap: 28px; padding-top: 24px; padding-bottom: 48px; }

/* 左侧分类 */
.offer-sidebar { background: #fff; border: 1px solid var(--border); border-radius: var(--radius-md); overflow: hidden; height: fit-content; position: sticky; top: calc(var(--header-h) + 16px); max-height: calc(100vh - var(--header-h) - 32px); overflow-y: auto; }
.offer-sidebar-title { padding: 16px 20px; font-size: 14px; font-weight: 700; background: var(--secondary); color: #fff; }
.offer-cat-group { border-bottom: 1px solid var(--border); }
.offer-cat-header { display: flex; align-items: center; gap: 10px; padding: 13px 16px; cursor: pointer; transition: background .2s; user-select: none; }
.offer-cat-header:hover { background: var(--bg-gray); }
.offer-cat-icon { font-size: 18px; flex-shrink: 0; }
.offer-cat-name { flex: 1; font-size: 14px; font-weight: 700; }
.offer-cat-count { font-size: 11px; background: var(--bg-gray); color: var(--text-muted); padding: 2px 7px; border-radius: 10px; }
.offer-cat-arrow { font-size: 11px; color: var(--text-muted); transition: transform .25s; }
.offer-cat-group.expanded .offer-cat-arrow { transform: rotate(180deg); }
.offer-cat-boxes { display: none; padding: 4px 0; background: #fafafa; }
.offer-cat-group.expanded .offer-cat-boxes { display: block; }
.offer-box-item { display: flex; align-items: center; gap: 6px; padding: 9px 20px 9px 40px; cursor: pointer; transition: background .15s; }
.offer-box-item:hover { background: rgba(232,75,54,.05); }
.offer-box-item.active { background: rgba(232,75,54,.08); }
.offer-box-name { font-size: 13px; flex: 1; }
.offer-box-item.active .offer-box-name { color: var(--primary); font-weight: 600; }
.offer-box-alias { font-size: 11px; color: var(--text-light); }
.offer-box-qty { font-size: 11px; color: var(--text-light); margin-left: auto; white-space: nowrap; }

/* 右侧报价表单 */
.offer-placeholder { padding: 80px 40px; text-align: center; }
.placeholder-icon { font-size: 60px; margin-bottom: 16px; }
.offer-placeholder h3 { font-size: 22px; font-weight: 800; margin-bottom: 10px; }
.offer-placeholder p { font-size: 15px; color: var(--text-muted); margin-bottom: 28px; }
.placeholder-tips { display: flex; gap: 24px; justify-content: center; }
.tip-item { display: flex; align-items: center; gap: 6px; font-size: 13px; color: var(--text-muted); }
.tip-dot { width: 6px; height: 6px; border-radius: 50%; background: var(--primary); flex-shrink: 0; }
.offer-form-wrap { background: #fff; border: 1px solid var(--border); border-radius: var(--radius-md); overflow: hidden; }
.offer-form-header { display: flex; align-items: center; justify-content: space-between; padding: 20px 28px; background: var(--secondary); color: #fff; }
.offer-form-header h2 { font-size: 20px; font-weight: 800; }
.offer-min-qty { font-size: 13px; background: rgba(255,255,255,.15); padding: 4px 12px; border-radius: 20px; }
.offer-form { padding: 28px; display: flex; flex-direction: column; gap: 0; }
.form-section { margin-bottom: 28px; }
.form-section-title { font-size: 15px; font-weight: 700; color: var(--secondary); border-left: 3px solid var(--primary); padding-left: 10px; margin-bottom: 18px; }
.form-row-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-group { display: flex; flex-direction: column; gap: 6px; margin-bottom: 16px; }
.form-group label { font-size: 13px; font-weight: 600; color: var(--text-base); }
.form-group label em { color: var(--primary); }
.form-group input, .form-group textarea, .form-group select { padding: 10px 13px; border: 1px solid var(--border); border-radius: var(--radius-sm); font-size: 14px; transition: var(--transition); }
.form-group input:focus, .form-group textarea:focus, .form-group select:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(232,75,54,.1); }
.form-group input.error { border-color: #ef4444; }

/* 尺寸输入 */
.size-inputs { display: flex; align-items: center; gap: 10px; }
.size-field { position: relative; flex: 1; }
.size-field input { width: 100%; text-align: center; }
.size-field span { position: absolute; bottom: -18px; left: 50%; transform: translateX(-50%); font-size: 11px; color: var(--text-muted); }
.size-x { font-size: 18px; color: var(--text-light); flex-shrink: 0; }
.size-unit { font-size: 13px; color: var(--text-muted); flex-shrink: 0; }

/* 数量 */
.qty-wrap { display: flex; flex-direction: column; gap: 10px; }
.qty-wrap input { width: 100%; }
.qty-presets { display: flex; gap: 8px; flex-wrap: wrap; }
.qty-preset { padding: 5px 14px; border: 1px solid var(--border); border-radius: 20px; font-size: 12px; cursor: pointer; transition: var(--transition); background: #fff; color: var(--text-base); }
.qty-preset:hover, .qty-preset.active { background: var(--primary); color: #fff; border-color: var(--primary); }

/* 材质选择 */
.material-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.material-item { display: flex; flex-direction: column; align-items: center; gap: 4px; padding: 12px 8px; border: 2px solid var(--border); border-radius: var(--radius-sm); cursor: pointer; transition: var(--transition); text-align: center; }
.material-item input { display: none; }
.material-item span { font-size: 13px; font-weight: 600; }
.material-item small { font-size: 11px; color: var(--text-muted); }
.material-item:hover { border-color: var(--primary); background: rgba(232,75,54,.04); }
.material-item:has(input:checked) { border-color: var(--primary); background: rgba(232,75,54,.08); }
.material-item:has(input:checked) span { color: var(--primary); }

/* 工艺选择 */
.craft-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; }
.craft-item { display: flex; align-items: center; gap: 7px; padding: 9px 12px; border: 1px solid var(--border); border-radius: var(--radius-sm); cursor: pointer; transition: var(--transition); font-size: 13px; }
.craft-item input { width: 14px; height: 14px; accent-color: var(--primary); }
.craft-item:hover { border-color: var(--primary); background: rgba(232,75,54,.04); }
.craft-item:has(input:checked) { border-color: var(--primary); background: rgba(232,75,54,.06); }

/* 文件上传 */
.upload-zone { border: 2px dashed var(--border); border-radius: var(--radius-md); transition: var(--transition); }
.upload-zone:hover { border-color: var(--primary); }
.upload-placeholder { padding: 32px; text-align: center; cursor: pointer; }
.upload-icon { font-size: 40px; display: block; margin-bottom: 10px; }
.upload-placeholder p { font-size: 14px; color: var(--text-base); margin-bottom: 6px; }
.upload-placeholder small { font-size: 12px; color: var(--text-muted); }
.upload-preview { padding: 16px 20px; display: flex; align-items: center; gap: 10px; }
.upload-file-info { display: flex; align-items: center; gap: 12px; width: 100%; }
.upload-file-icon { font-size: 28px; flex-shrink: 0; }
.upload-file-detail { flex: 1; min-width: 0; }
.upload-file-name { display: block; font-size: 13px; font-weight: 600; color: var(--primary); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.upload-file-size { display: block; font-size: 12px; color: var(--text-muted); }
.upload-file-remove { width: 28px; height: 28px; border-radius: 50%; background: #fee2e2; color: #ef4444; font-size: 14px; display: flex; align-items: center; justify-content: center; cursor: pointer; flex-shrink: 0; transition: var(--transition); }
.upload-file-remove:hover { background: #ef4444; color: #fff; }

/* 报价结果 */
.offer-price-box { background: linear-gradient(135deg, var(--secondary), #2d3748); border-radius: var(--radius-md); padding: 20px 24px; display: flex; align-items: center; justify-content: space-between; margin-bottom: 24px; transition: var(--transition); }
.offer-price-box.has-price { background: linear-gradient(135deg, #059669, #047857); }
.price-label { font-size: 12px; color: rgba(255,255,255,.6); margin-bottom: 6px; }
.price-value { font-size: 20px; font-weight: 800; color: #fff; margin-bottom: 4px; }
.price-main { font-size: 28px; }
.price-range { font-size: 16px; opacity: .8; }
.price-unit { display: block; font-size: 12px; opacity: .7; font-weight: 400; }
.price-loading { display: inline-block; animation: spin 1s linear infinite; }
.price-error { color: #fca5a5 !important; font-size: 14px; font-weight: 400; }
.price-note { font-size: 12px; color: rgba(255,255,255,.5); }
.offer-price-box .btn-outline { border-color: rgba(255,255,255,.4); color: #fff; }
.offer-price-box .btn-outline:hover { background: #fff; color: var(--secondary); }

/* 提交区 */
.offer-submit-row { text-align: center; }
.submit-note { margin-top: 10px; font-size: 13px; color: var(--text-muted); }

/* 成功提示 */
.offer-success { padding: 60px 40px; text-align: center; }
.success-icon { font-size: 64px; margin-bottom: 16px; }
.offer-success h3 { font-size: 24px; font-weight: 800; margin-bottom: 12px; color: #059669; }
.offer-success p { font-size: 15px; color: var(--text-muted); margin-bottom: 8px; }
.success-btns { display: flex; gap: 14px; justify-content: center; margin-top: 24px; }

/* ============================================================
   现货商城
   ============================================================ */
.products-page { padding-top: var(--header-h); }
.products-page .page-header { padding: 40px 0 32px; background: var(--bg-gray); }
.products-page .page-header h1 { font-size: 32px; font-weight: 800; }
.products-layout { display: grid; grid-template-columns: 220px 1fr; gap: 28px; padding: 28px 0 60px; }
.products-sidebar { }
.products-sidebar-title { font-size: 14px; font-weight: 700; padding: 10px 0; border-bottom: 2px solid var(--primary); margin-bottom: 12px; }
.cat-filter-link { display: block; padding: 9px 14px; border-radius: var(--radius-sm); font-size: 14px; color: var(--text-base); transition: var(--transition); margin-bottom: 4px; }
.cat-filter-link:hover, .cat-filter-link.active { background: rgba(232,75,54,.08); color: var(--primary); font-weight: 600; }

/* ============================================================
   分页
   ============================================================ */
.pagination { display: flex; justify-content: center; align-items: center; gap: 8px; padding: 32px 0; }
.page-btn { padding: 8px 14px; border: 1px solid var(--border); border-radius: var(--radius-sm); font-size: 14px; color: var(--text-base); transition: var(--transition); }
.page-btn:hover, .page-btn.active { background: var(--primary); color: #fff; border-color: var(--primary); }
.page-btn.disabled { opacity: .4; cursor: default; pointer-events: none; }

/* ============================================================
   登录/注册页
   ============================================================ */
.auth-page { min-height: 100vh; display: flex; align-items: center; justify-content: center; padding: 80px 20px 40px; background: linear-gradient(135deg, #1A1A2E 0%, #16213E 100%); }
.auth-card { background: #fff; border-radius: var(--radius-xl); padding: 48px 40px; width: 100%; max-width: 440px; box-shadow: var(--shadow-xl); }
.auth-logo { text-align: center; margin-bottom: 32px; }
.auth-logo svg { margin: 0 auto 10px; }
.auth-logo h2 { font-size: 22px; font-weight: 800; color: var(--secondary); }
.auth-card h1 { font-size: 26px; font-weight: 800; margin-bottom: 8px; }
.auth-card .sub { font-size: 14px; color: var(--text-muted); margin-bottom: 28px; }
.auth-footer { text-align: center; margin-top: 20px; font-size: 13px; color: var(--text-muted); }
.auth-footer a { color: var(--primary); font-weight: 600; }
.auth-card .btn-primary { width: 100%; margin-top: 4px; }

/* Flash 消息 */
.flash-msg { padding: 12px 16px; border-radius: var(--radius-sm); margin-bottom: 16px; font-size: 14px; display: flex; align-items: center; gap: 8px; }
.flash-success { background: #d1fae5; color: #065f46; border: 1px solid #a7f3d0; }
.flash-error { background: #fee2e2; color: #991b1b; border: 1px solid #fecaca; }
.flash-info { background: #dbeafe; color: #1e40af; border: 1px solid #bfdbfe; }

/* ============================================================
   用户中心
   ============================================================ */
.user-page { padding-top: var(--header-h); display: flex; min-height: 100vh; }
.user-sidebar { width: 240px; background: var(--secondary); flex-shrink: 0; padding: 32px 0; }
.user-sidebar-avatar { text-align: center; padding: 0 20px 24px; border-bottom: 1px solid rgba(255,255,255,.1); margin-bottom: 16px; }
.user-sidebar-avatar .avatar-circle { width: 64px; height: 64px; border-radius: 50%; background: var(--primary); margin: 0 auto 10px; display: flex; align-items: center; justify-content: center; font-size: 28px; font-weight: 800; color: #fff; }
.user-sidebar-avatar h3 { font-size: 15px; font-weight: 700; color: #fff; }
.user-nav-link { display: flex; align-items: center; gap: 10px; padding: 12px 24px; font-size: 14px; color: rgba(255,255,255,.7); transition: var(--transition); }
.user-nav-link:hover, .user-nav-link.active { color: #fff; background: rgba(255,255,255,.1); border-right: 3px solid var(--primary); }
.user-main { flex: 1; padding: 32px; background: var(--bg-gray); }
.user-content-card { background: #fff; border-radius: var(--radius-md); padding: 28px; box-shadow: var(--shadow-sm); }

/* ============================================================
   通用表格
   ============================================================ */
.data-table { width: 100%; border-collapse: collapse; font-size: 14px; }
.data-table th { padding: 12px 16px; text-align: left; background: var(--bg-gray); font-weight: 700; font-size: 13px; color: var(--text-muted); border-bottom: 2px solid var(--border); }
.data-table td { padding: 14px 16px; border-bottom: 1px solid var(--bg-gray); vertical-align: middle; }
.data-table tr:hover td { background: rgba(232,75,54,.02); }

/* 状态徽章 */
.badge { display: inline-block; padding: 3px 10px; border-radius: 12px; font-size: 12px; font-weight: 600; }
.badge-pending { background: #fef3c7; color: #92400e; }
.badge-quoted { background: #dbeafe; color: #1e40af; }
.badge-done { background: #d1fae5; color: #065f46; }
.badge-closed { background: #f3f4f6; color: #6b7280; }
.badge-red { background: #fee2e2; color: #991b1b; }

/* ============================================================
   响应式适配
   ============================================================ */
@media (max-width: 1100px) {
  .footer-grid { grid-template-columns: 1fr 1fr 1fr; gap: 32px; }
  .adv-grid { grid-template-columns: repeat(3, 1fr); }
  .service-grid { grid-template-columns: 1fr; max-width: 500px; margin: 0 auto; }
  .offer-layout { grid-template-columns: 260px 1fr; }
}

@media (max-width: 900px) {
  section { padding: 52px 0; }
  .main-nav { display: none; }
  .header-phone { display: none; }
  .btn-login, .btn-register { display: none; }
  .hamburger { display: flex; }
  .hero-banner { height: 420px; }
  .banner-content { grid-template-columns: 1fr; }
  .banner-visual { display: none; }
  .category-grid { grid-template-columns: repeat(3, 1fr); }
  .adv-grid { grid-template-columns: repeat(2, 1fr); }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .stat-item { border-right: none; border-bottom: 1px solid rgba(255,255,255,.1); }
  .contact-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .offer-layout { grid-template-columns: 1fr; }
  .offer-sidebar { position: relative; top: 0; max-height: 320px; }
}

@media (max-width: 640px) {
  .header-inner { padding: 0 16px; }
  .header-right .btn { display: none; }
  .hero-banner { height: 360px; }
  .banner-title { font-size: 26px; }
  .banner-btns { flex-direction: column; }
  .category-grid { grid-template-columns: repeat(2, 1fr); }
  .adv-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .contact-grid { grid-template-columns: 1fr; }
  .process-steps { flex-direction: column; align-items: center; }
  .step-arrow { transform: rotate(90deg); margin: 0; }
  .footer-grid { grid-template-columns: 1fr; }
  .qf-row { grid-template-columns: 1fr; }
  .form-row-2 { grid-template-columns: 1fr; }
  .material-grid { grid-template-columns: repeat(2, 1fr); }
  .craft-grid { grid-template-columns: repeat(2, 1fr); }
  .quick-contact { padding: 24px 16px; }
  .auth-card { padding: 32px 20px; }
  .user-page { flex-direction: column; }
  .user-sidebar { width: 100%; }
}