/* =========================================================
   木船.cn — 企业展示站 全局样式
   设计：木色 + 海蓝，简洁大气，移动优先响应式
   ========================================================= */

:root {
  --color-bg: #fbf8f3;
  --color-surface: #ffffff;
  --color-ink: #2b2118;
  --color-muted: #6b5d4f;
  --color-primary: #9c6b3f;
  --color-primary-dark: #6f4a23;
  --color-accent: #1f6f6b;
  --color-accent-soft: #e3f0ee;
  --color-line: #e7ddd0;
  --radius: 14px;
  --radius-sm: 10px;
  --shadow: 0 10px 30px rgba(60, 40, 20, 0.08);
  --shadow-lg: 0 18px 50px rgba(60, 40, 20, 0.14);
  --maxw: 1200px;
  --header-h: 68px;
  --font-sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei",
    -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial,
    sans-serif;
  --font-serif: "Noto Serif SC", "Songti SC", "STSong", "SimSun", serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  color: var(--color-ink);
  background: var(--color-bg);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

a {
  color: var(--color-accent);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

h1,
h2,
h3,
h4 {
  font-family: var(--font-serif);
  line-height: 1.3;
  margin: 0 0 0.5em;
  color: var(--color-ink);
}

p {
  margin: 0 0 1em;
}

.container {
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 20px;
}

/* ---------- 跳转链接（无障碍） ---------- */
.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--color-accent);
  color: #fff;
  padding: 10px 16px;
  z-index: 1000;
  border-radius: 0 0 8px 0;
}
.skip-link:focus {
  left: 0;
}

/* ---------- 顶部导航 ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(251, 248, 243, 0.9);
  backdrop-filter: saturate(180%) blur(10px);
  border-bottom: 1px solid var(--color-line);
}
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-h);
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 22px;
  color: var(--color-ink);
}
.brand:hover {
  text-decoration: none;
}
.brand .logo {
  width: 36px;
  height: 36px;
  flex: none;
}
.brand small {
  display: block;
  font-family: var(--font-sans);
  font-weight: 400;
  font-size: 11px;
  letter-spacing: 2px;
  color: var(--color-muted);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
  list-style: none;
  margin: 0;
  padding: 0;
}
.nav-links a {
  display: block;
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  color: var(--color-ink);
  font-size: 15px;
  transition: background 0.2s, color 0.2s;
}
.nav-links a:hover,
.nav-links a:focus-visible {
  background: var(--color-accent-soft);
  color: var(--color-accent);
  text-decoration: none;
}
.nav-links a.active {
  color: var(--color-primary-dark);
  font-weight: 600;
}

.btn {
  display: inline-block;
  padding: 11px 22px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 600;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.15s, box-shadow 0.2s, background 0.2s;
  text-decoration: none;
}
.btn:hover {
  text-decoration: none;
  transform: translateY(-1px);
}
.btn-primary {
  background: var(--color-primary);
  color: #fff;
  box-shadow: 0 8px 20px rgba(156, 107, 63, 0.3);
}
.btn-primary:hover {
  background: var(--color-primary-dark);
  color: #fff;
}
.btn-accent {
  background: var(--color-accent);
  color: #fff;
}
.btn-accent:hover {
  background: #165856;
  color: #fff;
}
.btn-ghost {
  background: transparent;
  border-color: var(--color-primary);
  color: var(--color-primary-dark);
}
.btn-ghost:hover {
  background: var(--color-primary);
  color: #fff;
}

.nav-cta {
  margin-left: 8px;
}

/* 汉堡按钮 */
.nav-toggle {
  display: none;
  background: none;
  border: 0;
  width: 44px;
  height: 44px;
  cursor: pointer;
  padding: 10px;
}
.nav-toggle span {
  display: block;
  height: 2px;
  background: var(--color-ink);
  margin: 5px 0;
  border-radius: 2px;
  transition: 0.25s;
}

/* ---------- 通用区块 ---------- */
.section {
  padding: 72px 0;
}
.section-tight {
  padding: 48px 0;
}
.section-alt {
  background: var(--color-surface);
}
.section-head {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 44px;
}
.section-head .eyebrow {
  display: inline-block;
  color: var(--color-accent);
  font-size: 13px;
  letter-spacing: 3px;
  font-weight: 600;
  margin-bottom: 10px;
}
.section-head h2 {
  font-size: clamp(26px, 4vw, 38px);
}
.section-head p {
  color: var(--color-muted);
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  overflow: hidden;
  background: linear-gradient(160deg, #f3e8da 0%, #e9f3f1 100%);
}
.hero .container {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 40px;
  align-items: center;
  padding-top: 70px;
  padding-bottom: 70px;
}
.hero h1 {
  font-size: clamp(32px, 5.4vw, 54px);
  margin-bottom: 18px;
}
.hero .lead {
  font-size: 18px;
  color: var(--color-muted);
  max-width: 520px;
  margin-bottom: 28px;
}
.hero-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}
.hero-art {
  position: relative;
  min-height: 300px;
}
.hero-art svg {
  width: 100%;
  height: auto;
  filter: drop-shadow(0 20px 30px rgba(60, 40, 20, 0.18));
}
/* hero 实拍照片：圆角 + 阴影，按容器高度裁切填充 */
.hero-art img {
  width: 100%;
  height: 100%;
  min-height: 300px;
  object-fit: cover;
  display: block;
  border-radius: var(--radius);
  box-shadow: 0 20px 40px rgba(60, 40, 20, 0.22);
}

/* 公司简介页配图：保持 3:2 原始比例，绝不纵向拉伸 */
.about-photo {
  display: block;
  width: 100%;
  height: auto;
  border-radius: var(--radius);
  box-shadow: 0 14px 30px rgba(60, 40, 20, 0.16);
}
.hero-wave {
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  width: 100%;
  height: auto;
  color: var(--color-bg);
}

/* ---------- 卡片网格 ---------- */
.grid {
  display: grid;
  gap: 24px;
}
.grid-3 {
  grid-template-columns: repeat(3, 1fr);
}
.grid-2 {
  grid-template-columns: repeat(2, 1fr);
}
.grid-4 {
  grid-template-columns: repeat(4, 1fr);
}

.card {
  background: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  padding: 28px;
  transition: transform 0.2s, box-shadow 0.2s, border-color 0.2s;
}
.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
  border-color: transparent;
}
.card .icon {
  width: 52px;
  height: 52px;
  border-radius: 12px;
  background: var(--color-accent-soft);
  display: grid;
  place-items: center;
  margin-bottom: 18px;
}
.card h3 {
  font-size: 20px;
  margin-bottom: 8px;
}
.card p {
  color: var(--color-muted);
  font-size: 15px;
  margin-bottom: 0;
}
.card .more {
  display: inline-block;
  margin-top: 14px;
  font-weight: 600;
  font-size: 14px;
}

/* ---------- 数据指标 ---------- */
.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  text-align: center;
}
.stat .num {
  font-family: var(--font-serif);
  font-size: clamp(30px, 5vw, 46px);
  color: var(--color-primary);
  font-weight: 700;
}
.stat .label {
  color: var(--color-muted);
  font-size: 14px;
}

/* ---------- 新闻列表 ---------- */
.news-item {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 22px;
  padding: 22px 0;
  border-bottom: 1px solid var(--color-line);
  align-items: start;
}
.news-item:last-child {
  border-bottom: 0;
}
.news-date {
  background: var(--color-accent-soft);
  border-radius: var(--radius-sm);
  text-align: center;
  padding: 14px 10px;
  color: var(--color-accent);
}
.news-date .d {
  font-family: var(--font-serif);
  font-size: 30px;
  font-weight: 700;
  display: block;
  line-height: 1;
}
.news-date .m {
  font-size: 13px;
  letter-spacing: 1px;
}
.news-item h3 {
  font-size: 19px;
  margin-bottom: 6px;
}
.news-item .meta {
  font-size: 13px;
  color: var(--color-muted);
  margin-bottom: 8px;
}
.news-item p {
  color: var(--color-muted);
  font-size: 15px;
  margin: 0;
}

/* ---------- 时间线（发展历程） ---------- */
.timeline {
  list-style: none;
  margin: 0;
  padding: 0 0 0 22px;
  border-left: 2px solid var(--color-line);
}
.timeline li {
  position: relative;
  padding: 0 0 28px 22px;
}
.timeline li::before {
  content: "";
  position: absolute;
  left: -31px;
  top: 4px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--color-primary);
  border: 3px solid var(--color-bg);
}
.timeline .year {
  font-family: var(--font-serif);
  font-weight: 700;
  color: var(--color-primary-dark);
}
.timeline h4 {
  margin: 4px 0 4px;
  font-size: 17px;
}

/* ---------- 产品/服务页 ---------- */
.product {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 30px;
  align-items: center;
  padding: 30px 0;
  border-bottom: 1px solid var(--color-line);
}
.product:last-child {
  border-bottom: 0;
}
.product .thumb {
  border-radius: var(--radius);
  background: linear-gradient(135deg, #f3e8da, #e9f3f1);
  aspect-ratio: 4 / 3;
  display: grid;
  place-items: center;
  overflow: hidden;
}
.product .thumb svg {
  width: 60%;
}
/* 实拍照片：铺满容器并裁切，object-fit 保证不变形 */
.product .thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.product h3 {
  font-size: 22px;
}
.tag {
  display: inline-block;
  font-size: 12px;
  padding: 3px 10px;
  border-radius: 999px;
  background: var(--color-accent-soft);
  color: var(--color-accent);
  margin-bottom: 10px;
}

/* 流程步骤 */
.steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
  counter-reset: step;
}
.step {
  position: relative;
  background: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  padding: 26px 20px;
  text-align: center;
}
.step::before {
  counter-increment: step;
  content: counter(step);
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  margin: 0 auto 14px;
  border-radius: 50%;
  background: var(--color-primary);
  color: #fff;
  font-weight: 700;
  font-family: var(--font-serif);
}
.step h4 {
  font-size: 17px;
  margin-bottom: 6px;
}
.step p {
  font-size: 14px;
  color: var(--color-muted);
  margin: 0;
}

/* ---------- 文章页 ---------- */
.article {
  max-width: 820px;
  margin: 0 auto;
}
.article-header {
  text-align: center;
  padding: 50px 0 30px;
  border-bottom: 1px solid var(--color-line);
  margin-bottom: 36px;
}
.article-header h1 {
  font-size: clamp(26px, 4vw, 38px);
}
.article-header .meta {
  color: var(--color-muted);
  font-size: 14px;
}
.article-body h2 {
  font-size: 26px;
  margin-top: 1.6em;
  padding-top: 0.4em;
  border-top: 1px dashed var(--color-line);
}
.article-body h3 {
  font-size: 20px;
  margin-top: 1.4em;
}
.article-body p,
.article-body li {
  font-size: 16.5px;
  color: #3a2f25;
}
.article-body blockquote {
  margin: 1.4em 0;
  padding: 14px 20px;
  border-left: 4px solid var(--color-primary);
  background: var(--color-accent-soft);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  color: var(--color-muted);
}
.faq {
  background: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  padding: 24px 28px;
  margin-top: 30px;
}
.faq h3 {
  margin-top: 0;
}

/* ---------- 文章页：待核实标注 / 文末导航 ---------- */
.verify {
  font-size: 0.9em;
  color: var(--color-primary-dark);
  background: var(--color-accent-soft);
  padding: 1px 6px;
  border-radius: 4px;
  white-space: nowrap;
}
.article-nav {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-top: 40px;
  padding-top: 26px;
  border-top: 1px solid var(--color-line);
}
.article-body p img {
  margin: 1.4em auto;
}

/* ---------- 文章页：表格 ---------- */
.article-body table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.6em 0;
  font-size: 0.95em;
  line-height: 1.7;
}
.article-body th,
.article-body td {
  border: 1px solid var(--color-line);
  padding: 10px 12px;
  text-align: left;
  vertical-align: top;
}
.article-body th {
  background: var(--color-accent-soft);
  font-weight: 600;
  color: var(--color-primary-dark);
  white-space: nowrap;
}
.article-body tbody tr:nth-child(even) {
  background: rgba(0, 0, 0, 0.02);
}
/* 窄屏下表格可横向滚动，避免挤压文字 */
@media (max-width: 760px) {
  .article-body table {
    display: block;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    white-space: nowrap;
  }
  .article-body th,
  .article-body td {
    padding: 8px 10px;
  }
}

/* ---------- 联系页 ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 36px;
  align-items: start;
}
.contact-info li {
  list-style: none;
  display: flex;
  gap: 14px;
  padding: 14px 0;
  border-bottom: 1px solid var(--color-line);
}
.contact-info .ic {
  flex: none;
  width: 42px;
  height: 42px;
  border-radius: 10px;
  background: var(--color-accent-soft);
  display: grid;
  place-items: center;
}
.contact-info .k {
  font-size: 13px;
  color: var(--color-muted);
}
.contact-info .v {
  font-weight: 600;
}
.form-field {
  margin-bottom: 16px;
}
.form-field label {
  display: block;
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 6px;
}
.form-field input,
.form-field textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-family: inherit;
  background: var(--color-surface);
  color: var(--color-ink);
}
.form-field input:focus,
.form-field textarea:focus {
  outline: 2px solid var(--color-accent);
  outline-offset: 1px;
  border-color: var(--color-accent);
}
.form-note {
  font-size: 13px;
  color: var(--color-muted);
  margin-top: 10px;
}
.map {
  border: 0;
  width: 100%;
  height: 320px;
  border-radius: var(--radius);
  border: 1px solid var(--color-line);
}

/* ---------- CTA 横幅 ---------- */
.cta-band {
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  color: #fff;
  border-radius: var(--radius);
  padding: 48px 40px;
  text-align: center;
}
.cta-band h2 {
  color: #fff;
}
.cta-band p {
  color: rgba(255, 255, 255, 0.85);
  max-width: 560px;
  margin: 0 auto 22px;
}

/* ---------- 页脚 ---------- */
.site-footer {
  background: #221a12;
  color: #cfc3b4;
  padding: 56px 0 28px;
  margin-top: 40px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: 32px;
}
.site-footer h4 {
  color: #fff;
  font-size: 16px;
  margin-bottom: 16px;
}
.site-footer a {
  color: #cfc3b4;
  display: block;
  padding: 4px 0;
}
.site-footer a:hover {
  color: #fff;
}
.footer-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: #fff;
  font-family: var(--font-serif);
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 14px;
}
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  margin-top: 36px;
  padding-top: 20px;
  font-size: 13px;
  text-align: center;
  color: #9a8e7e;
}

/* ---------- 面包屑 ---------- */
.breadcrumb {
  font-size: 13px;
  color: var(--color-muted);
  padding: 18px 0 0;
}
.breadcrumb a {
  color: var(--color-muted);
}

/* ---------- 404 ---------- */
.notfound {
  text-align: center;
  padding: 100px 20px;
}
.notfound h1 {
  font-size: 96px;
  color: var(--color-primary);
}

/* ---------- 焦点可见性（无障碍） ---------- */
:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

/* =========================================================
   响应式
   ========================================================= */
@media (max-width: 960px) {
  .hero .container {
    grid-template-columns: 1fr;
    text-align: center;
  }
  .hero .lead {
    margin-left: auto;
    margin-right: auto;
  }
  .hero-actions {
    justify-content: center;
  }
  .hero-art {
    order: -1;
    max-width: 420px;
    margin: 0 auto;
  }
  .grid-3,
  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }
  .steps {
    grid-template-columns: repeat(2, 1fr);
  }
  .stats {
    grid-template-columns: repeat(2, 1fr);
    gap: 32px 16px;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
  .contact-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 760px) {
  .nav-toggle {
    display: block;
  }
  .nav-links {
    position: absolute;
    top: var(--header-h);
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-line);
    padding: 8px 16px 16px;
    box-shadow: var(--shadow);
    display: none;
  }
  .nav-links.open {
    display: flex;
  }
  .nav-links a {
    padding: 12px 8px;
    border-bottom: 1px solid var(--color-line);
  }
  .nav-cta {
    margin: 12px 0 0;
  }
  .nav-cta .btn {
    display: block;
    text-align: center;
  }
  .section {
    padding: 52px 0;
  }
  .product {
    grid-template-columns: 1fr;
    text-align: center;
  }
  .news-item {
    grid-template-columns: 1fr;
  }
  .news-date {
    display: inline-flex;
    gap: 8px;
    align-items: baseline;
    padding: 6px 14px;
  }
  .news-date .d {
    font-size: 20px;
  }
}

@media (max-width: 480px) {
  .grid-2,
  .grid-3,
  .grid-4,
  .steps,
  .stats {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr;
  }
  .cta-band {
    padding: 36px 22px;
  }
}

/* 减少动效偏好 */
@media (prefers-reduced-motion: reduce) {
  * {
    scroll-behavior: auto !important;
    transition: none !important;
  }
}