/* ==========================================================================
   山东维泰纺织有限公司 官网样式（2026-08 重建）

   设计参数取自 www.shuixing.com 的 CDP 实测值：
     内容容器 1150px ｜ 正文色 #333 ｜ 标题字重 400 + 字距 4px
     主按钮 #7091db 直角 238x44 ｜ 页脚 #191919 ｜ 区块上下留白 60-100px
   中文标题一律"细字重 + 宽字距"，这是这类家纺品牌站舒展感的来源；
   卡片无圆角无阴影，靠细线和留白分隔。
   ========================================================================== */

:root {
  --bg: #ffffff;
  --bg-alt: #f4f4f4;
  --bg-deep: #ececec;
  --text: #333333;
  --text-strong: #1f1f1f;
  --text-sub: #888888;
  --line: #e2e2e2;
  --line-soft: #eeeeee;
  --accent: #7091db;
  --accent-deep: #5a6cbb;
  --accent-tint: #eef2fb;
  --footer-bg: #191919;
  --footer-text: #cfcfcf;
  --footer-line: #333333;

  --max: 1150px;
  --gutter: clamp(18px, 4vw, 40px);
  --band: clamp(56px, 6.5vw, 100px);

  /* 兰亭黑 Light 是商用字体，用系统里最接近的无衬线细体替代 */
  --sans: "PingFang SC", "Hiragino Sans GB", "Source Han Sans SC", "Noto Sans SC",
    "Microsoft YaHei", -apple-system, BlinkMacSystemFont, "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

section[id] { scroll-margin-top: 90px; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 15px;
  line-height: 1.9;
  -webkit-font-smoothing: antialiased;
}

img { display: block; width: 100%; }
a { color: inherit; text-decoration: none; }
button, input, select, textarea { font: inherit; }
.hidden { display: none !important; }

h1, h2, h3, h4 { font-weight: 400; }

.num, .mono {
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
}

/* 无实拍图时的织物结构暗示，用得极淡 */
.weave-terry {
  background-image: radial-gradient(circle at 50% 50%, rgba(0,0,0,0.05) 1px, transparent 1.1px);
  background-size: 14px 14px;
}
.weave-plain {
  background-image:
    repeating-linear-gradient(90deg, rgba(0,0,0,0.045) 0 1px, transparent 1px 6px),
    repeating-linear-gradient(0deg, rgba(0,0,0,0.03) 0 1px, transparent 1px 6px);
}
.weave-waffle {
  background-image:
    repeating-linear-gradient(0deg, rgba(0,0,0,0.05) 0 1px, transparent 1px 18px),
    repeating-linear-gradient(90deg, rgba(0,0,0,0.05) 0 1px, transparent 1px 18px);
}

/* ========== 页头 ========== */

.site-header {
  position: sticky;
  top: 0;
  z-index: 30;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: clamp(12px, 2vw, 24px);
  min-height: 76px;
  padding-inline: var(--gutter);
  background: rgba(255,255,255,0.96);
  border-bottom: 1px solid var(--line-soft);
  backdrop-filter: blur(12px);
}

.brand { display: inline-flex; align-items: center; gap: 12px; }

.brand-mark {
  display: grid;
  width: 40px; height: 40px;
  place-items: center;
  background: var(--text-strong);
  color: #fff;
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 0.06em;
}

.brand-logo { width: auto; height: 40px; max-width: 200px; object-fit: contain; object-position: left center; }
.brand strong, .brand small { display: block; }

.brand strong {
  color: var(--text-strong);
  font-size: 19px;
  letter-spacing: 0.16em;
  line-height: 1.35;
}

.brand small {
  color: var(--text-sub);
  font-size: 10px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.main-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: clamp(12px, 1.5vw, 22px);
  font-size: 14.5px;
  white-space: nowrap;
}

.main-nav a {
  position: relative;
  padding: 27px 0;
  letter-spacing: 0.04em;
  transition: color 200ms ease;
}

.main-nav a::after {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 2px;
  content: "";
  background: var(--accent);
  transform: scaleX(0);
  transition: transform 240ms ease;
}

.main-nav a:hover { color: var(--accent); }
.main-nav a:hover::after,
.main-nav a[aria-current="page"]::after { transform: scaleX(1); }
.main-nav a[aria-current="page"] { color: var(--accent); }

.header-actions { display: flex; align-items: center; gap: 12px; }

.header-cta {
  display: inline-flex;
  align-items: center;
  height: 38px;
  padding: 0 20px;
  background: var(--accent);
  color: #fff;
  font-size: 14px;
  letter-spacing: 0.05em;
  white-space: nowrap;
  transition: background 200ms ease;
}
.header-cta:hover { background: var(--accent-deep); }

.language-switcher { display: flex; align-items: center; }
.language-switcher select {
  height: 34px; min-width: 90px; padding: 0 6px;
  border: 1px solid var(--line);
  background: #fff; color: var(--text);
  font-size: 13px; cursor: pointer;
}

/* ========== 通用容器与双层标题 ========== */

.section-band { position: relative; padding-inline: var(--gutter); }

.hero-inner, .proof-inner, .intro, .featured-products, .careers-inner,
.page-hero-inner, .product-grid, .materials, .spec-table-wrap, .workflow,
.markets, .quality, .faq, .contact, .home-showcase, .product-scenarios > *,
.split-feature {
  width: min(100%, var(--max));
  margin-inline: auto;
}

/* 大号英文在上、中文标题在下 */
.eyebrow, .section-kicker {
  display: block;
  margin: 0 0 6px;
  color: var(--text-sub);
  font-size: clamp(28px, 3.4vw, 46px);
  font-weight: 200;
  letter-spacing: 0.14em;
  line-height: 1.2;
  text-transform: uppercase;
}

.intro-heading h2, .materials h2, .feature-copy h2, .workflow h2, .markets h2,
.quality h2, .faq h2, .contact h2, .featured-head h2, .scenario-head h2,
.careers-head h2, .showcase-copy h2 {
  margin: 0;
  color: var(--text-strong);
  font-size: clamp(23px, 2.4vw, 33px);
  letter-spacing: 0.1em;
  line-height: 1.65;
}

.featured-head, .scenario-head, .materials-head, .workflow-head,
.quality-head, .careers-head {
  margin-bottom: clamp(30px, 4vw, 52px);
}

.featured-head p:not(.eyebrow), .scenario-head p:not(.eyebrow),
.materials-head p:not(.eyebrow), .workflow-head p:not(.eyebrow),
.intro-heading p, .feature-copy p, .markets > p, .contact-copy p,
.careers-head p, .showcase-copy > p:not(.eyebrow) {
  max-width: 64ch;
  margin: 14px 0 0;
  color: var(--text);
  line-height: 1.95;
}

/* 居中标题，两侧带横线 */
.band-centered { text-align: center; }

/* 标题两侧的横线用 flex 撑，随容器收缩，不会像绝对定位那样撑破页面 */
.band-centered .eyebrow {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: clamp(14px, 2.5vw, 30px);
}

.band-centered .eyebrow::before,
.band-centered .eyebrow::after {
  flex: 1 1 auto;
  min-width: 0;
  max-width: 260px;
  height: 1px;
  content: "";
  background: var(--line);
}

.band-centered p:not(.eyebrow) { margin-inline: auto; }

.button {
  display: inline-flex; align-items: center; justify-content: center;
  min-width: 190px; height: 46px; padding: 0 26px;
  border: 1px solid transparent;
  font-size: 14px; letter-spacing: 0.08em; cursor: pointer;
  transition: background 200ms ease, color 200ms ease, border-color 200ms ease;
}
.button-primary { background: var(--accent); color: #fff; }
.button-primary:hover { background: var(--accent-deep); }
.button-secondary { border-color: var(--line); background: #fff; color: var(--text); }
.button-secondary:hover { border-color: var(--accent); color: var(--accent); }

/* ========== 首屏 ========== */

.hero {
  position: relative;
  display: grid; align-items: center;
  min-height: min(76vh, 660px);
  overflow: hidden;
  padding-block: clamp(44px, 6vw, 76px);
  background: var(--bg-alt);
}

.hero-bg { position: absolute; inset: 0; }
.hero-bg::after {
  position: absolute; inset: 0; content: "";
  background-image: var(--hero-bg-image, none);
  background-position: center; background-size: cover;
}

.hero-inner {
  position: relative; z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(240px, 0.7fr);
  align-items: center;
  gap: clamp(30px, 5vw, 76px);
}

.hero .eyebrow {
  margin-bottom: 24px;
  color: var(--accent);
  font-size: 13px; font-weight: 400; letter-spacing: 0.24em;
}

.hero h1 {
  max-width: 19em; margin: 0;
  color: var(--text-strong);
  font-size: clamp(27px, 3.2vw, 42px);
  font-weight: 300; letter-spacing: 0.14em; line-height: 1.75;
  white-space: pre-line;
}

.hero-copy { max-width: 46ch; margin: 26px 0 0; line-height: 2; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 36px; }

.hero-stats { display: grid; }
.hero-stats article { display: grid; gap: 2px; padding: 20px 0; border-bottom: 1px solid var(--line); }
.hero-stats article:first-child { border-top: 1px solid var(--line); }
.hero-stats strong {
  color: var(--accent);
  font-family: var(--mono); font-variant-numeric: tabular-nums;
  font-size: clamp(25px, 2.7vw, 33px); font-weight: 400;
}
.hero-stats span { color: var(--text-sub); font-size: 13px; letter-spacing: 0.04em; }

/* ========== 内页抬头 ========== */

.page-hero { background: var(--bg-alt); border-bottom: 1px solid var(--line); }
.page-hero-inner { padding-block: clamp(44px, 5vw, 72px); }
.page-hero h1 {
  margin: 0; color: var(--text-strong);
  font-size: clamp(25px, 2.8vw, 36px);
  font-weight: 300; letter-spacing: 0.14em; line-height: 1.6;
}
.page-hero p { max-width: 64ch; margin: 12px 0 0; color: var(--text-sub); line-height: 1.95; }

/* ========== 能力要点三栏 ========== */

.enterprise-proof { padding-block: var(--band); background: var(--bg); }
.proof-inner {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  background: var(--line-soft);
  border: 1px solid var(--line-soft);
  counter-reset: proof;
}
.proof-inner article {
  counter-increment: proof;
  padding: clamp(26px, 3vw, 40px) clamp(20px, 2.4vw, 32px);
  background: #fff;
}
.proof-inner article::before {
  content: counter(proof, decimal-leading-zero);
  display: block; margin-bottom: 18px;
  color: var(--accent);
  font-family: var(--mono); font-size: 13px; letter-spacing: 0.1em;
}
.proof-inner span {
  display: block; color: var(--text-sub);
  font-size: 11px; letter-spacing: 0.16em; text-transform: uppercase;
}
.proof-inner strong {
  display: block; max-width: 18em; margin-top: 10px;
  color: var(--text-strong);
  font-size: 18px; font-weight: 400; letter-spacing: 0.06em; line-height: 1.7;
}
.proof-inner p { max-width: 28em; margin: 12px 0 0; color: var(--text-sub); font-size: 14px; }

/* ========== 首页介绍：左标题右正文 ========== */

.intro {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr);
  gap: clamp(26px, 4vw, 64px);
  padding-block: var(--band);
  background: var(--bg);
}
.intro > .section-kicker { grid-column: 1 / -1; }

/* ========== 产品中心入口卡 ========== */

.featured-products { padding-block: var(--band); }
.featured-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(18px, 2.4vw, 30px);
}
.featured-grid article { display: flex; flex-direction: column; background: #fff; }
.featured-grid img { aspect-ratio: 4 / 3; height: auto; object-fit: cover; }
.featured-grid article > div { flex: 1; padding: 22px 2px 0; }
.featured-grid span,
.scenario-card span {
  color: var(--accent);
  font-size: 11px; letter-spacing: 0.16em; text-transform: uppercase;
}
.featured-grid h3, .scenario-card h3 {
  margin: 10px 0 0;
  color: var(--text-strong);
  font-size: 18px; letter-spacing: 0.06em; line-height: 1.7;
}
.featured-grid p { margin: 8px 0 0; color: var(--text-sub); font-size: 14px; }
.featured-material {
  margin-top: 12px !important; padding-top: 10px;
  border-top: 1px solid var(--line);
  color: var(--text) !important;
  font-family: var(--mono); font-variant-numeric: tabular-nums;
  font-size: 12.5px !important;
}
.featured-more {
  display: inline-flex; align-items: center; gap: 8px;
  margin-top: clamp(26px, 3vw, 40px);
  color: var(--accent); font-size: 14px; letter-spacing: 0.06em;
}
.featured-more:hover { text-decoration: underline; }

/* ========== 解决方案卡 ========== */

.product-scenarios { padding-block: var(--band); background: var(--bg-alt); }
.scenario-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: clamp(14px, 2vw, 24px);
}
.scenario-card {
  position: relative;
  padding: clamp(24px, 2.6vw, 32px) clamp(18px, 2vw, 26px);
  background: #fff;
}
.scenario-card::before {
  position: absolute; top: 0; left: 0; right: 0; height: 3px;
  content: ""; background: var(--tone, var(--accent));
}
.scenario-card p { margin: 10px 0 0; color: var(--text-sub); font-size: 14px; }
.tone-linen { --tone: #9db4dd; }
.tone-caramel { --tone: #c99a6b; }
.tone-rose { --tone: #d09a9a; }
.tone-gold { --tone: #c6b06a; }

/* ========== 制造能力：左图右文 ========== */

.home-showcase {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
  gap: clamp(26px, 4vw, 60px);
  align-items: center;
  padding-block: var(--band);
}
.showcase-media { position: relative; overflow: hidden; background: var(--bg-deep); }
.showcase-media img { height: 100%; aspect-ratio: 4 / 3.2; object-fit: cover; }
.showcase-media::after { display: none; }
.showcase-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin-top: 30px;
  background: var(--line-soft);
  border: 1px solid var(--line-soft);
}
.showcase-grid article { padding: 20px 18px; background: #fff; }
.showcase-grid strong {
  display: block; color: var(--text-strong);
  font-size: 15px; letter-spacing: 0.06em;
}
.showcase-grid span { display: block; margin-top: 6px; color: var(--text-sub); font-size: 13.5px; }

/* ========== 产品系列 ========== */

.products { padding-block: var(--band); background: var(--bg-alt); }
.product-grid {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: clamp(16px, 2vw, 24px);
}
.product-card {
  grid-column: span 2;
  min-width: 0;
  display: flex; flex-direction: column;
  background: #fff;
  transition: box-shadow 220ms ease;
}
.product-card:hover { box-shadow: 0 10px 30px rgba(0,0,0,0.06); }
.product-card:first-child, .product-card:nth-child(2) { grid-column: span 3; }

.product-media { overflow: hidden; background: var(--bg-deep); }
.product-media img { aspect-ratio: 4 / 3; object-fit: cover; }

/* 没有实拍图时只用一条窄织纹带，等上传真实产品图会自动替换 */
.product-weave { position: relative; overflow: hidden; height: 56px; border-bottom: 1px solid var(--line-soft); }
.quilt-visual {
  background-image:
    repeating-linear-gradient(0deg, rgba(0,0,0,0.05) 0 1px, transparent 1px 5px),
    repeating-linear-gradient(90deg, rgba(0,0,0,0.04) 0 1px, transparent 1px 5px);
  background-color: var(--bg-alt);
}
.mat-visual {
  background-image:
    repeating-linear-gradient(0deg, rgba(0,0,0,0.07) 0 1px, transparent 1px 16px),
    repeating-linear-gradient(90deg, rgba(0,0,0,0.07) 0 1px, transparent 1px 16px);
  background-color: var(--bg-alt);
}
.towel-visual {
  background-image: radial-gradient(circle at 50% 50%, rgba(0,0,0,0.07) 1.3px, transparent 1.4px);
  background-size: 11px 11px;
  background-color: var(--bg-alt);
}

.product-info { padding: clamp(20px, 2.2vw, 28px); }
.product-info span { color: var(--accent); font-size: 11px; letter-spacing: 0.16em; text-transform: uppercase; }
.product-info h3 {
  margin: 10px 0 0; color: var(--text-strong);
  font-size: 19px; letter-spacing: 0.06em; line-height: 1.7;
}
.product-info p { margin: 10px 0 0; color: var(--text-sub); font-size: 14px; }

.product-meta { display: grid; gap: 0; margin: 18px 0 0; }
.product-meta > div {
  display: grid; grid-template-columns: 4.5em minmax(0, 1fr);
  gap: 14px; padding: 9px 0;
  border-top: 1px solid var(--line-soft);
}
.product-meta dt { color: var(--text-sub); font-size: 12.5px; letter-spacing: 0.08em; }
.product-meta dd {
  margin: 0; color: var(--text);
  font-family: var(--mono); font-variant-numeric: tabular-nums; font-size: 13px;
}
.product-card-dark { grid-column: span 6; background: var(--accent-tint); }
.product-card-dark .product-info { display: grid; gap: 4px; }
.product-card-dark a {
  justify-self: start; margin-top: 18px;
  padding: 0 24px; height: 42px;
  display: inline-flex; align-items: center;
  background: var(--accent); color: #fff;
  font-size: 14px; letter-spacing: 0.06em;
}
.product-card-dark a:hover { background: var(--accent-deep); }

/* ========== 材质与规格 ========== */

.materials { padding-block: var(--band); }
.material-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: clamp(16px, 2vw, 26px);
}
.material-grid article { padding: 26px 22px; background: #fff; border: 1px solid var(--line-soft); }
.material-grid h3 {
  margin: 16px 0 0; color: var(--text-strong);
  font-size: 17px; letter-spacing: 0.06em;
}
.material-grid p { margin: 8px 0 0; color: var(--text-sub); font-size: 14px; }
.swatch { display: block; width: 40px; height: 40px; }
.swatch-cotton { background: #e8e2d6; }
.swatch-fleece { background: #d8c8b4; }
.swatch-cooling { background: #cbd8d6; }
.swatch-waffle { background: #e4e4e4; }

.spec-table-wrap { margin-top: clamp(34px, 4vw, 56px); border: 1px solid var(--line); background: #fff; }
.table-title {
  display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between;
  gap: 12px 28px; margin: 0; padding: 22px 24px;
  border-bottom: 1px solid var(--line);
}
.table-title h3 { margin: 0; color: var(--text-strong); font-size: 17px; letter-spacing: 0.08em; }
.table-title p { max-width: 60ch; margin: 0; color: var(--text-sub); font-size: 13.5px; }

.spec-table { display: grid; }
.spec-row { display: grid; grid-template-columns: 1fr 1.25fr 0.95fr 1.35fr 1.2fr; border-bottom: 1px solid var(--line-soft); }
.spec-row:last-child { border-bottom: 0; }
.spec-row span { min-width: 0; padding: 14px 16px; font-size: 13.5px; line-height: 1.7; }
.spec-row-head { background: var(--bg-alt); }
.spec-row-head span {
  color: var(--text-sub);
  font-size: 11px; letter-spacing: 0.12em; text-transform: uppercase;
}
.spec-cat { color: var(--text-strong) !important; }
.spec-gsm { color: var(--accent) !important; }
.spec-row:hover:not(.spec-row-head) { background: var(--accent-tint); }

/* ========== 生产能力：左图右文 ========== */

.split-feature {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: clamp(26px, 4vw, 60px);
  align-items: center;
  padding-block: var(--band);
}
.feature-image { overflow: hidden; background: var(--bg-deep); }
.feature-image img { height: 100%; aspect-ratio: 4 / 3.4; object-fit: cover; }
.capability-list { display: grid; margin-top: 26px; }
.capability-list > div {
  display: grid; grid-template-columns: 7em minmax(0, 1fr);
  gap: 20px; padding: 16px 0;
  border-top: 1px solid var(--line);
}
.capability-list strong {
  color: var(--text-strong);
  font-size: 15px; font-weight: 400; letter-spacing: 0.06em;
}
.capability-list span { color: var(--text-sub); font-size: 14px; line-height: 1.9; }

/* ========== 生产流程 ========== */

.workflow { padding-block: var(--band); }
.workflow-steps {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  background: var(--line-soft);
  border: 1px solid var(--line-soft);
}
.workflow-steps article { padding: 26px 24px; background: #fff; }
.workflow-steps article > span:first-child {
  display: block; color: var(--accent);
  font-family: var(--mono); font-size: 13px; letter-spacing: 0.1em;
}
.workflow-steps h3 { margin: 14px 0 0; color: var(--text-strong); font-size: 16px; letter-spacing: 0.06em; }
.workflow-steps p { margin: 8px 0 0; color: var(--text-sub); font-size: 14px; }

/* ========== 市场渠道 ========== */

.markets { padding-block: var(--band); background: var(--bg-alt); }
.markets-layout { display: grid; gap: clamp(24px, 3vw, 40px); margin-top: clamp(26px, 3vw, 40px); }
.market-tabs { display: flex; flex-wrap: wrap; gap: 10px; }
.market-tab {
  height: 42px; padding: 0 24px;
  border: 1px solid var(--line);
  background: #fff; color: var(--text);
  font-size: 14px; letter-spacing: 0.06em; cursor: pointer;
  transition: background 200ms ease, color 200ms ease, border-color 200ms ease;
}
.market-tab:hover { border-color: var(--accent); color: var(--accent); }
.market-tab.active { background: var(--accent); border-color: var(--accent); color: #fff; }
.market-panel { padding: clamp(24px, 3vw, 36px); background: #fff; border: 1px solid var(--line-soft); }
.market-panel h3 { margin: 0; color: var(--text-strong); font-size: 20px; letter-spacing: 0.08em; line-height: 1.7; }
.market-panel p { max-width: 64ch; margin: 12px 0 0; color: var(--text-sub); }
.market-services {
  display: grid; grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px; background: var(--line-soft); border: 1px solid var(--line-soft);
}
.market-services article { padding: 24px 22px; background: #fff; }
.market-services h3 { margin: 0; color: var(--text-strong); font-size: 16px; letter-spacing: 0.06em; }
.market-services p { margin: 8px 0 0; color: var(--text-sub); font-size: 14px; }

/* ========== 品质体系 ========== */

.quality { padding-block: var(--band); }
.quality-grid {
  display: grid; grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(16px, 2vw, 26px);
}
.quality-grid article { padding: 26px 22px; background: #fff; border: 1px solid var(--line-soft); }
.quality-grid span {
  color: var(--accent); font-family: var(--mono);
  font-size: 13px; letter-spacing: 0.1em;
}
.quality-grid h3 { margin: 14px 0 0; color: var(--text-strong); font-size: 17px; letter-spacing: 0.06em; }
.quality-grid p { margin: 8px 0 0; color: var(--text-sub); font-size: 14px; }

.quality-details {
  display: grid; grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(20px, 3vw, 40px); margin-top: clamp(28px, 3.4vw, 44px);
}
.quality-details h3 { margin: 0 0 14px; color: var(--text-strong); font-size: 16px; letter-spacing: 0.08em; }
.quality-details ul { margin: 0; padding: 0; list-style: none; }
.quality-details li {
  padding: 12px 0 12px 18px;
  border-top: 1px solid var(--line-soft);
  color: var(--text); font-size: 14px;
  background: linear-gradient(var(--accent), var(--accent)) 0 21px / 6px 1px no-repeat;
}

/* ========== 常见问题 ========== */

.faq { padding-block: var(--band); background: var(--bg-alt); }
.faq-list { display: grid; gap: 1px; background: var(--line-soft); border: 1px solid var(--line-soft); }
.faq-list details { background: #fff; }

.faq-list summary {
  position: relative;
  padding: 22px clamp(52px, 6vw, 64px) 22px clamp(20px, 2.4vw, 30px);
  color: var(--text-strong);
  font-size: 16px; letter-spacing: 0.06em; line-height: 1.7;
  cursor: pointer; list-style: none;
  transition: color 180ms ease;
}

.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary:hover { color: var(--accent); }

/* 右侧加减号指示展开状态 */
.faq-list summary::after {
  position: absolute;
  top: 50%; right: clamp(20px, 2.4vw, 30px);
  width: 14px; height: 14px;
  margin-top: -7px;
  content: "";
  background:
    linear-gradient(var(--accent), var(--accent)) center / 14px 1px no-repeat,
    linear-gradient(var(--accent), var(--accent)) center / 1px 14px no-repeat;
  transition: transform 220ms ease;
}

.faq-list details[open] summary::after {
  background: linear-gradient(var(--accent), var(--accent)) center / 14px 1px no-repeat;
}

.faq-list details[open] summary { color: var(--accent); }

.faq-list details > p {
  max-width: 80ch;
  margin: 0;
  padding: 0 clamp(20px, 2.4vw, 30px) 24px;
  color: var(--text-sub);
  font-size: 14px; line-height: 1.95;
}

/* ========== 联系询盘 ========== */

.contact { padding-block: var(--band); }
.contact-copy { display: grid; gap: 0; }
.contact-lines { display: grid; gap: 6px; margin-top: 22px; }
.contact-lines p { margin: 0; color: var(--text); font-size: 14.5px; }
.contact-form {
  display: grid; gap: 18px; margin-top: clamp(28px, 3.4vw, 44px);
  padding: clamp(24px, 3vw, 40px);
  background: #fff; border: 1px solid var(--line);
}
.form-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
.contact-form label { display: grid; gap: 8px; font-size: 13.5px; color: var(--text-sub); }
.contact-form input, .contact-form select, .contact-form textarea {
  width: 100%; min-height: 46px; padding: 12px 14px;
  border: 1px solid var(--line); background: #fff; color: var(--text); font-size: 14.5px;
}
.contact-form textarea { min-height: 130px; resize: vertical; }
.contact-form input:focus, .contact-form select:focus, .contact-form textarea:focus {
  outline: none; border-color: var(--accent);
}
.contact-form button { justify-self: start; }
.form-note { margin: 0; color: var(--text-sub); font-size: 13.5px; white-space: pre-line; }

/* ========== 招聘 ========== */

.careers { padding-block: 0; }
.careers-inner { padding-block: var(--band); }
.job-list { display: grid; gap: 1px; background: var(--line-soft); border: 1px solid var(--line-soft); }
.job-item {
  display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.8fr);
  gap: clamp(18px, 3vw, 40px);
  padding: clamp(22px, 2.6vw, 32px);
  background: #fff;
}
.job-head h3 { margin: 0; color: var(--text-strong); font-size: 18px; letter-spacing: 0.06em; }
.job-tags {
  display: flex; flex-wrap: wrap; gap: 6px 16px; margin-top: 12px;
  color: var(--text-sub); font-size: 13px;
}
.job-salary { margin-top: 10px; color: var(--accent); font-family: var(--mono); font-size: 14px; }
.job-body h4 {
  margin: 0 0 8px; color: var(--text-sub);
  font-size: 11px; letter-spacing: 0.14em; text-transform: uppercase;
}
.job-body p { margin: 0 0 16px; color: var(--text); font-size: 14px; line-height: 1.95; white-space: pre-line; }
.job-body p:last-child { margin-bottom: 0; }
.careers-apply {
  display: grid; grid-template-columns: minmax(0, 1fr) auto;
  align-items: center; gap: 24px;
  margin-top: 26px; padding: 26px clamp(20px, 2.6vw, 32px);
  background: var(--accent-tint);
}
.careers-apply h3 { margin: 0 0 8px; color: var(--text-strong); font-size: 16px; letter-spacing: 0.08em; }
.careers-apply p { max-width: 64ch; margin: 0; color: var(--text); font-size: 14px; }
.careers-mail { color: var(--accent) !important; font-family: var(--mono); font-size: 15px; white-space: nowrap; }

/* ========== 页脚 ========== */

.site-footer { padding: clamp(32px, 3.4vw, 48px) var(--gutter) 0; background: var(--footer-bg); color: var(--footer-text); }
.footer-main {
  display: grid; grid-template-columns: minmax(0, 1.5fr) minmax(180px, 0.9fr) minmax(150px, 0.7fr);
  gap: clamp(28px, 4vw, 70px);
  width: min(100%, var(--max)); margin-inline: auto;
  padding-bottom: clamp(34px, 4vw, 52px);
}
.footer-brand { display: grid; gap: 8px; justify-items: start; align-content: start; }

.footer-brand strong { display: block; color: #fff; font-size: 17px; letter-spacing: 0.16em; }
.footer-brand p { margin: 0; color: var(--footer-text); font-size: 13.5px; line-height: 1.8; }
.footer-col h4 {
  margin: 0 0 12px; color: #fff;
  font-size: 13.5px; font-weight: 400; letter-spacing: 0.14em;
}
.footer-col p { margin: 0 0 4px; font-size: 13px; line-height: 1.85; white-space: nowrap; }
.footer-nav { display: grid; align-content: start; }

/* 导航项分两列，页脚高度减一半 */
.footer-nav-links {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 6px 18px;
}
.footer-nav a { color: var(--footer-text); font-size: 13.5px; line-height: 1.9; transition: color 180ms ease; }
.footer-nav a:hover { color: #fff; }
.footer-bottom {
  display: flex; flex-wrap: wrap; align-items: center; gap: 10px 26px;
  width: min(100%, var(--max)); margin-inline: auto;
  padding: 14px 0 18px;
  border-top: 1px solid var(--footer-line);
  color: #8a8a8a; font-size: 13px;
}
.footer-bottom a { color: #8a8a8a; }
.footer-bottom a:hover { color: #fff; text-decoration: underline; }

/* ========== 响应式 ========== */

@media (max-width: 1080px) {
  .site-header { grid-template-columns: auto 1fr; row-gap: 0; }
  .main-nav {
    grid-column: 1 / -1; grid-row: 2;
    justify-content: flex-start;
    gap: 20px; padding-bottom: 4px;
    overflow-x: auto; font-size: 14px;
  }
  .main-nav a { padding: 12px 0; }
  .hero-inner, .intro, .home-showcase, .split-feature { grid-template-columns: minmax(0, 1fr); }
  .featured-grid, .quality-grid, .workflow-steps, .market-services, .material-grid,
  .scenario-grid, .proof-inner {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .product-card, .product-card:first-child, .product-card:nth-child(2) { grid-column: span 3; }
  .product-card-dark { grid-column: span 6; }
  .quality-details { grid-template-columns: minmax(0, 1fr); }
}

@media (max-width: 720px) {
  html, body { overflow-x: hidden; }
  .site-header { min-height: 64px; }
  .featured-grid, .quality-grid, .workflow-steps, .market-services, .material-grid,
  .scenario-grid, .proof-inner, .form-grid {
    grid-template-columns: minmax(0, 1fr);
  }
  .product-card, .product-card:first-child, .product-card:nth-child(2),
  .product-card-dark { grid-column: span 6; }
  .job-item, .careers-apply { grid-template-columns: minmax(0, 1fr); }
  .careers-mail { white-space: normal; word-break: break-all; }
  .capability-list article, .product-meta > div { grid-template-columns: minmax(0, 1fr); gap: 4px; }
  .footer-main { grid-template-columns: minmax(0, 1fr); }
  .band-centered .eyebrow::before, .band-centered .eyebrow::after { max-width: 40px; }

  /* 规格表折成卡片，每个值补出列名 */
  .spec-row-head { display: none; }
  .spec-row { grid-template-columns: minmax(0, 1fr); padding: 8px 0; border-bottom: 1px solid var(--line); }
  .spec-row span {
    display: grid; grid-template-columns: 5.5em minmax(0, 1fr);
    gap: 14px; padding: 7px 16px;
  }
  .spec-row span::before {
    content: attr(data-label);
    color: var(--text-sub); font-size: 11px; letter-spacing: 0.08em; text-transform: uppercase;
  }
  .spec-cat { padding-top: 12px !important; font-size: 15px; }
}

/* ==========================================================================
   首页轮播 / 企业介绍 / 公司资讯
   按参考站的首页骨架：轮播 → 企业介绍(左文右图) → 产品分类 → 公司资讯
   ========================================================================== */

.hero-slider {
  position: relative;
  overflow: hidden;
  height: clamp(360px, 46vw, 660px);
  background: var(--bg-alt);
}

.slider-track { position: relative; height: 100%; }

.slide {
  position: absolute;
  inset: 0;
  display: block;
  opacity: 0;
  transition: opacity 700ms ease;
  pointer-events: none;
}

.slide.active { opacity: 1; pointer-events: auto; }

.slide img { height: 100%; object-fit: cover; }

/* 图上压字要有暗层保证可读 */
.slide::after {
  position: absolute;
  inset: 0;
  content: "";
  background: linear-gradient(90deg, rgba(0, 0, 0, 0.58), rgba(0, 0, 0, 0.28) 52%, rgba(0, 0, 0, 0.1));
}

.slide-caption {
  position: absolute;
  top: 50%;
  left: 50%;
  z-index: 1;
  width: min(100%, var(--max));
  transform: translate(-50%, -50%);
  padding-inline: var(--gutter);
  color: #fff;
}

.slide-caption h2 {
  max-width: 20em;
  margin: 0;
  color: #fff;
  font-size: clamp(24px, 3.2vw, 44px);
  font-weight: 300;
  letter-spacing: 0.14em;
  line-height: 1.7;
  white-space: pre-line;
  text-shadow: 0 2px 24px rgba(0, 0, 0, 0.35);
}

.slide-caption p {
  max-width: 44ch;
  margin: 18px 0 0;
  color: rgba(255, 255, 255, 0.88);
  font-size: clamp(14px, 1.2vw, 16px);
  line-height: 1.9;
}

.slide-cta {
  display: inline-flex;
  align-items: center;
  height: 44px;
  margin-top: 28px;
  padding: 0 26px;
  border: 1px solid rgba(255, 255, 255, 0.7);
  font-size: 14px;
  letter-spacing: 0.08em;
  transition: background 200ms ease, color 200ms ease;
}

.slide:hover .slide-cta { background: #fff; color: var(--text-strong); }

.slider-dots {
  position: absolute;
  bottom: 22px;
  left: 0;
  right: 0;
  z-index: 2;
  display: flex;
  justify-content: center;
  gap: 10px;
}

.slider-dots button {
  width: 36px;
  height: 3px;
  padding: 0;
  border: 0;
  background: rgba(255, 255, 255, 0.45);
  cursor: pointer;
  transition: background 200ms ease;
}

.slider-dots button.active { background: #fff; }
.slider-dots button:hover { background: rgba(255, 255, 255, 0.8); }

/* ---------- 企业介绍：左文右图 ---------- */

.intro-feature { padding-block: var(--band); }

.intro-feature-inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
  align-items: center;
  gap: clamp(28px, 4.5vw, 70px);
  width: min(100%, var(--max));
  margin-inline: auto;
}

.intro-feature-copy .button { margin-top: 30px; }
.intro-feature-media { overflow: hidden; background: var(--bg-deep); }
.intro-feature-media img { aspect-ratio: 4 / 3; object-fit: cover; }

/* ---------- 公司资讯 ---------- */

.news-home { padding-block: var(--band); background: var(--bg-alt); }
.news-list-band { padding-block: var(--band); }
.news-home-inner, .news-list-inner { width: min(100%, var(--max)); margin-inline: auto; }
.news-head { margin-bottom: clamp(30px, 4vw, 52px); }

.news-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: clamp(16px, 2.2vw, 28px);
}

.news-grid-full { grid-template-columns: repeat(3, minmax(0, 1fr)); }

.news-card {
  display: flex;
  flex-direction: column;
  padding: 24px 22px 26px;
  background: #fff;
  border: 1px solid var(--line-soft);
  transition: border-color 200ms ease;
}

.news-card:hover { border-color: var(--accent); }
.news-cover { margin: -24px -22px 20px; overflow: hidden; background: var(--bg-deep); }
.news-cover img { aspect-ratio: 16 / 9; object-fit: cover; }

.news-date {
  color: var(--text-sub);
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
  font-size: 13px;
  letter-spacing: 0.06em;
}

.news-card h3 {
  margin: 12px 0 0;
  color: var(--text-strong);
  font-size: 16px;
  letter-spacing: 0.05em;
  line-height: 1.75;
}

.news-card p {
  margin: 10px 0 0;
  color: var(--text-sub);
  font-size: 14px;
  line-height: 1.9;
}

.news-list-band .news-card { padding-bottom: 30px; }

@media (max-width: 1080px) {
  .intro-feature-inner { grid-template-columns: minmax(0, 1fr); }
  .news-grid, .news-grid-full { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 720px) {
  .hero-slider { height: clamp(320px, 62vw, 420px); }
  .slide-caption h2 { font-size: 22px; letter-spacing: 0.1em; }
  .news-grid, .news-grid-full { grid-template-columns: minmax(0, 1fr); }
}

/* 后台没配图时，左文右图的版面自动收成单列，不留空白图框 */
.intro-feature-inner.no-media,
.split-feature.no-media {
  grid-template-columns: minmax(0, 1fr);
}

.intro-feature-inner.no-media .intro-feature-copy,
.split-feature.no-media .feature-copy {
  max-width: 72ch;
}


/* ========== 关于公司 ========== */

.about { padding-block: var(--band); }

.about-inner {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
  align-items: center;
  gap: clamp(28px, 4.5vw, 70px);
  width: min(100%, var(--max));
  margin-inline: auto;
}

.about-copy h2 {
  margin: 0;
  color: var(--text-strong);
  font-size: clamp(23px, 2.4vw, 33px);
  letter-spacing: 0.1em;
  line-height: 1.65;
}

.about-copy p:not(.eyebrow) {
  max-width: 60ch;
  margin: 16px 0 0;
  color: var(--text);
  line-height: 2;
}

.about-media { overflow: hidden; background: var(--bg-deep); }
.about-media img { aspect-ratio: 4 / 3; object-fit: cover; }

/* 企业数据横排 */
.about-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  width: min(100%, var(--max));
  margin: clamp(34px, 4vw, 56px) auto 0;
  background: var(--line-soft);
  border: 1px solid var(--line-soft);
}

.about-stats article {
  display: grid;
  gap: 4px;
  padding: 26px 24px;
  background: #fff;
  border: 0;
}

.about-stats article:first-child { border-top: 0; }

@media (max-width: 1080px) {
  .about-inner { grid-template-columns: minmax(0, 1fr); }
}

@media (max-width: 720px) {
  .about-stats { grid-template-columns: minmax(0, 1fr); }
}

.about-inner.no-media { grid-template-columns: minmax(0, 1fr); }
.about-inner.no-media .about-copy p:not(.eyebrow) { max-width: 74ch; }

/* 后台把某条文案清空后，空段落不该继续占位 */
p:empty,
.footer-col p:empty { display: none; }

/* 窄屏放弃单行，长地址允许折行 */
@media (max-width: 900px) {
  .footer-col p { white-space: normal; }
}

.products-head, .news-list-head { margin-bottom: clamp(30px, 4vw, 52px); }
.products-head h2, .news-list-head h2 {
  margin: 0;
  color: var(--text-strong);
  font-size: clamp(23px, 2.4vw, 33px);
  letter-spacing: 0.1em;
  line-height: 1.65;
}
.products-head p:not(.eyebrow) { max-width: 64ch; margin: 14px 0 0; color: var(--text); line-height: 1.95; }