/* ========================================
   黑客24小时在线接单网站 - 企业官网主题
   主色：皇家蓝 #1d4ed8 | 强调：琥珀 #d97706
   ======================================== */
:root {
  --c-primary: #1d4ed8;
  --c-primary-dark: #1e3a8a;
  --c-accent: #d97706;
  --c-accent-light: #f59e0b;
  --c-bg: #f0f4f8;
  --c-bg-alt: #e8eef5;
  --c-card: #ffffff;
  --c-dark: #0f172a;
  --c-dark-soft: #1e293b;
  --c-text: #1e293b;
  --c-text-muted: #64748b;
  --c-border: #cbd5e1;
  --c-border-light: #e2e8f0;
  --radius: 10px;
  --radius-lg: 14px;
  --shadow: 0 1px 3px rgba(15,23,42,0.06), 0 4px 12px rgba(15,23,42,0.04);
  --shadow-hover: 0 4px 16px rgba(29,78,216,0.12);
  --container: 1140px;
  --header-h: 64px;
}

*, *::before, *::after { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  padding: 0;
  font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: var(--c-text);
  background: var(--c-bg);
  overflow-x: hidden;
}

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

a { color: var(--c-primary); }

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

/* ========== 头部导航 ========== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 200;
  background: var(--c-dark);
  border-bottom: 1px solid rgba(255,255,255,0.08);
  box-shadow: 0 2px 8px rgba(0,0,0,0.15);
}

.header-row {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: var(--header-h);
  gap: 12px;
}

.site-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  flex-shrink: 0;
}

.logo-mark {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  background: linear-gradient(135deg, var(--c-primary), var(--c-accent));
  color: #fff;
  font-size: 13px;
  font-weight: 700;
  border-radius: 8px;
  letter-spacing: -0.5px;
}

.logo-text {
  color: #fff;
  font-size: 15px;
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 180px;
}

.site-nav { flex: 1; min-width: 0; }

.nav-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: flex-end;
  gap: 2px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-list a {
  display: block;
  padding: 6px 11px;
  color: rgba(255,255,255,0.85);
  text-decoration: none;
  font-size: 13px;
  font-weight: 500;
  border-radius: 6px;
  transition: background 0.2s, color 0.2s;
  white-space: nowrap;
}

.nav-list a:hover {
  background: rgba(255,255,255,0.1);
  color: #fff;
}

.z31001nav-item.z31001this a,
.z31001nav-item a.thisclass {
  background: var(--c-primary);
  color: #fff;
}

.nav-toggle {
  display: none;
  background: none;
  border: 1px solid rgba(255,255,255,0.2);
  color: #fff;
  font-size: 22px;
  padding: 4px 10px;
  border-radius: 6px;
  cursor: pointer;
  flex-shrink: 0;
}

/* ========== 按钮 ========== */
.btn {
  display: inline-block;
  padding: 11px 24px;
  font-size: 15px;
  font-weight: 600;
  text-decoration: none;
  border-radius: 8px;
  border: 2px solid transparent;
  cursor: pointer;
  transition: all 0.2s;
  text-align: center;
}

.btn-primary {
  background: var(--c-accent);
  color: #fff;
  border-color: var(--c-accent);
}

.btn-primary:hover {
  background: var(--c-accent-light);
  border-color: var(--c-accent-light);
}

.btn-outline {
  background: transparent;
  color: #fff;
  border-color: rgba(255,255,255,0.5);
}

.btn-outline:hover {
  background: rgba(255,255,255,0.1);
  border-color: #fff;
}

.btn-block { width: 100%; }

/* ========== Hero ========== */
.hero {
  background: linear-gradient(135deg, var(--c-primary-dark) 0%, var(--c-primary) 50%, #2563eb 100%);
  color: #fff;
  padding: 56px 0 64px;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
}

.hero-tag {
  display: inline-block;
  padding: 4px 12px;
  background: rgba(255,255,255,0.15);
  border-radius: 20px;
  font-size: 13px;
  margin-bottom: 16px;
}

.hero-text h1 {
  font-size: clamp(1.6rem, 3.5vw, 2.2rem);
  line-height: 1.35;
  margin: 0 0 14px;
  font-weight: 700;
}

.hero-desc {
  font-size: 15px;
  opacity: 0.9;
  margin: 0 0 12px;
}

.hero-intro {
  font-size: 14px;
  opacity: 0.85;
  margin: 0 0 24px;
  line-height: 1.7;
}

.hero-intro strong { color: var(--c-accent-light); }

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.hero-media {
  display: flex;
  justify-content: center;
}

.hero-img {
  width: 100%;
  max-width: 420px;
  aspect-ratio: 4/3;
  object-fit: cover;
  border-radius: var(--radius-lg);
  box-shadow: 0 12px 40px rgba(0,0,0,0.25);
  border: 3px solid rgba(255,255,255,0.2);
}

/* ========== 通用区块 ========== */
.section {
  padding: 56px 0;
}

.section:nth-child(even) {
  background: var(--c-card);
}

.section-head {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 36px;
}

.section-head h2,
.section h2 {
  font-size: clamp(1.4rem, 2.5vw, 1.75rem);
  color: var(--c-dark);
  margin: 0 0 10px;
  font-weight: 700;
}

.section-head p {
  color: var(--c-text-muted);
  margin: 0;
  font-size: 15px;
}

/* ========== 服务卡片 ========== */
.service-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.service-card {
  background: var(--c-card);
  border: 1px solid var(--c-border-light);
  border-radius: var(--radius);
  padding: 24px 20px;
  box-shadow: var(--shadow);
  transition: box-shadow 0.2s, transform 0.2s;
  min-height: 200px;
}

.section-services .service-card {
  background: var(--c-bg);
}

.service-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-2px);
}

.card-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background: var(--c-primary);
  color: #fff;
  font-size: 12px;
  font-weight: 700;
  border-radius: 8px;
  margin-bottom: 14px;
}

.service-card h3 {
  font-size: 16px;
  color: var(--c-dark);
  margin: 0 0 10px;
  line-height: 1.4;
}

.service-card p {
  font-size: 14px;
  color: var(--c-text-muted);
  margin: 0;
  line-height: 1.65;
}

/* ========== 平台介绍 ========== */
.about-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 32px;
  align-items: start;
}

.about-content h2 {
  margin-bottom: 16px;
}

.about-content p {
  color: var(--c-text-muted);
  font-size: 15px;
  margin: 0 0 14px;
}

.about-points {
  list-style: none;
  margin: 20px 0 0;
  padding: 0;
}

.about-points li {
  position: relative;
  padding: 8px 0 8px 22px;
  font-size: 14px;
  color: var(--c-text);
  border-bottom: 1px solid var(--c-border-light);
}

.about-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 8px;
  height: 8px;
  background: var(--c-accent);
  border-radius: 50%;
}

.about-side {
  display: grid;
  gap: 14px;
}

.stat-card {
  background: var(--c-card);
  border: 1px solid var(--c-border-light);
  border-radius: var(--radius);
  padding: 20px 24px;
  text-align: center;
  box-shadow: var(--shadow);
}

.stat-card strong {
  display: block;
  font-size: 28px;
  color: var(--c-primary);
  margin-bottom: 4px;
}

.stat-card span {
  font-size: 13px;
  color: var(--c-text-muted);
}

/* ========== 流程 ========== */
.process-track {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 16px;
}

.process-step {
  background: var(--c-card);
  border: 1px solid var(--c-border-light);
  border-radius: var(--radius);
  padding: 20px 16px;
  text-align: center;
  box-shadow: var(--shadow);
  min-height: 160px;
}

.step-no {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  background: var(--c-accent);
  color: #fff;
  font-size: 14px;
  font-weight: 700;
  border-radius: 50%;
  margin-bottom: 12px;
}

.process-step h4 {
  font-size: 15px;
  color: var(--c-dark);
  margin: 0 0 8px;
}

.process-step p {
  font-size: 13px;
  color: var(--c-text-muted);
  margin: 0;
  line-height: 1.55;
}

/* ========== 收费 & 安全 ========== */
.dual-panel {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.panel {
  background: var(--c-card);
  border: 1px solid var(--c-border-light);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  box-shadow: var(--shadow);
}

.panel h2 {
  font-size: 1.2rem;
  margin: 0 0 14px;
}

.panel > p {
  font-size: 14px;
  color: var(--c-text-muted);
  margin: 0 0 16px;
}

.pricing-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.pricing-list li {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 0;
  border-bottom: 1px solid var(--c-border-light);
  font-size: 14px;
}

.pricing-list li:last-child { border-bottom: none; }

.pricing-list strong {
  color: var(--c-accent);
  font-size: 14px;
}

.panel-note {
  margin-top: 14px !important;
  font-size: 13px !important;
  color: var(--c-text-muted);
  padding: 10px 12px;
  background: var(--c-bg);
  border-radius: 6px;
}

.security-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.security-list li {
  position: relative;
  padding: 8px 0 8px 18px;
  font-size: 14px;
  color: var(--c-text);
  border-bottom: 1px solid var(--c-border-light);
}

.security-list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--c-primary);
  font-weight: 700;
  font-size: 12px;
}

.security-list li:last-child { border-bottom: none; }

/* ========== 知识卡片 ========== */
.knowledge-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.knowledge-card {
  background: var(--c-card);
  border: 1px solid var(--c-border-light);
  border-radius: var(--radius);
  padding: 22px 20px;
  box-shadow: var(--shadow);
  border-left: 4px solid var(--c-primary);
}

.knowledge-card h4 {
  font-size: 15px;
  color: var(--c-dark);
  margin: 0 0 10px;
}

.knowledge-card p {
  font-size: 14px;
  color: var(--c-text-muted);
  margin: 0;
  line-height: 1.65;
}

/* ========== FAQ ========== */
.faq-grid {
  display: grid;
  gap: 12px;
  max-width: 800px;
}

.faq-item {
  background: var(--c-card);
  border: 1px solid var(--c-border-light);
  border-radius: var(--radius);
  padding: 0 18px;
  box-shadow: var(--shadow);
}

.faq-item summary {
  padding: 14px 0;
  cursor: pointer;
  font-weight: 600;
  font-size: 15px;
  color: var(--c-dark);
  list-style: none;
}

.faq-item summary::-webkit-details-marker { display: none; }

.faq-item p {
  padding: 0 0 14px;
  margin: 0;
  font-size: 14px;
  color: var(--c-text-muted);
  line-height: 1.65;
}

/* ========== 联系表单 ========== */
.contact-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 32px;
  align-items: start;
}

.contact-form-wrap h2 {
  margin-bottom: 8px;
}

.contact-form-wrap > p {
  font-size: 14px;
  color: var(--c-text-muted);
  margin: 0 0 20px;
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.contact-form label {
  font-size: 14px;
  font-weight: 600;
  color: var(--c-dark);
  margin-top: 6px;
}

.contact-form input,
.contact-form select,
.contact-form textarea {
  width: 100%;
  padding: 10px 12px;
  font-size: 14px;
  border: 1px solid var(--c-border);
  border-radius: 8px;
  background: var(--c-card);
  color: var(--c-text);
  outline: none;
  transition: border-color 0.2s;
}

.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus {
  border-color: var(--c-primary);
  box-shadow: 0 0 0 3px rgba(29,78,216,0.1);
}

.contact-form button {
  margin-top: 10px;
}

.contact-info-wrap {
  background: var(--c-dark);
  color: #fff;
  border-radius: var(--radius-lg);
  padding: 28px 24px;
}

.contact-info-wrap h3 {
  margin: 0 0 18px;
  font-size: 1.1rem;
}

.contact-info-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.contact-info-list li {
  padding: 10px 0;
  border-bottom: 1px solid rgba(255,255,255,0.1);
  font-size: 14px;
}

.contact-info-list strong {
  display: block;
  font-size: 12px;
  color: rgba(255,255,255,0.6);
  margin-bottom: 2px;
}

.contact-tip {
  margin: 18px 0 0;
  font-size: 13px;
  opacity: 0.8;
  line-height: 1.6;
}

/* ========== 首页文章 ========== */
.section-articles {
  background: var(--c-bg-alt);
}

.article-home-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 16px;
}

.article-home-item {
  background: var(--c-card);
  border: 1px solid var(--c-border-light);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: box-shadow 0.2s, transform 0.2s;
}

.article-home-item:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-2px);
}

.article-home-link {
  display: block;
  text-decoration: none;
  color: var(--c-text);
  padding-bottom: 12px;
}

.article-home-thumb {
  width: 100%;
  aspect-ratio: 4/3;
  overflow: hidden;
  background: var(--c-bg);
}

.article-home-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border: none;
}

.article-home-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--c-dark);
  margin: 10px 10px 4px;
  line-height: 1.45;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.article-home-date {
  display: block;
  font-size: 12px;
  color: var(--c-text-muted);
  margin: 0 10px;
}

/* ========== 悬浮按钮 ========== */
.floating-contact {
  position: fixed;
  right: 16px;
  bottom: 24px;
  z-index: 150;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.float-btn {
  display: block;
  padding: 10px 18px;
  background: var(--c-accent);
  color: #fff;
  font-size: 13px;
  font-weight: 600;
  text-decoration: none;
  border-radius: 24px;
  box-shadow: 0 4px 16px rgba(217,119,6,0.35);
  text-align: center;
  white-space: nowrap;
  transition: transform 0.2s;
}

.float-btn:hover { transform: translateY(-2px); }

.float-btn-alt {
  background: var(--c-primary);
  box-shadow: 0 4px 16px rgba(29,78,216,0.35);
}

/* ========== 页脚 ========== */
.site-footer {
  background: var(--c-dark);
  color: rgba(255,255,255,0.7);
  padding: 28px 0;
  text-align: center;
  font-size: 14px;
}

.footer-inner p { margin: 4px 0; }

.footer-inner a {
  color: var(--c-accent-light);
  text-decoration: none;
}

.footer-links {
  list-style: none;
  margin: 12px 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
}

.footer-links a {
  color: rgba(255,255,255,0.6);
  font-size: 13px;
  text-decoration: none;
}

.footer-links a:hover { color: #fff; }

/* ========================================
   列表页 / 内容页
   ======================================== */
.page-banner {
  background: linear-gradient(135deg, var(--c-primary-dark), var(--c-primary));
  color: #fff;
  padding: 32px 0;
}

.page-banner-inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 20px;
}

.breadcrumb {
  font-size: 13px;
  opacity: 0.85;
  margin-bottom: 8px;
}

.breadcrumb a {
  color: rgba(255,255,255,0.9);
  text-decoration: none;
}

.breadcrumb a:hover { text-decoration: underline; }

.breadcrumb-sep {
  margin: 0 6px;
  opacity: 0.5;
}

.breadcrumb-current {
  color: var(--c-accent-light);
}

.page-list-title {
  font-size: clamp(1.3rem, 2.5vw, 1.6rem);
  margin: 0;
  font-weight: 700;
}

.page-main-wrap {
  max-width: var(--container);
  margin: 0 auto;
  padding: 32px 20px 48px;
}

.page-layout {
  display: grid;
  grid-template-columns: 1fr 280px;
  gap: 28px;
  align-items: start;
}

.page-content {
  min-width: 0;
}

/* ========== 列表 ========== */
.list-articles {
  list-style: none;
  margin: 0;
  padding: 0;
}

.list-item {
  margin-bottom: 16px;
  background: var(--c-card);
  border: 1px solid var(--c-border-light);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: box-shadow 0.2s;
}

.list-item:hover { box-shadow: var(--shadow-hover); }

.list-item-link {
  display: flex;
  gap: 16px;
  padding: 16px;
  text-decoration: none;
  color: var(--c-text);
}

.list-item-thumb {
  flex: 0 0 160px;
  width: 160px;
  height: 120px;
  overflow: hidden;
  border-radius: 8px;
  background: var(--c-bg);
}

.list-item-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border: none;
}

.list-item-body {
  flex: 1;
  min-width: 0;
}

.list-item-title {
  font-size: 16px;
  color: var(--c-dark);
  margin: 0 0 8px;
  line-height: 1.4;
}

.list-item-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  font-size: 12px;
  color: var(--c-text-muted);
  margin-bottom: 8px;
}

.list-item-meta .meta-tag a {
  color: var(--c-primary);
  text-decoration: none;
}

.list-item-intro {
  font-size: 14px;
  color: var(--c-text-muted);
  margin: 0;
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* ========== 分页 ========== */
.pagebar {
  margin-top: 24px;
  padding-top: 20px;
  border-top: 1px solid var(--c-border-light);
}

.z31001pages { width: 100%; text-align: center; }

.pagelist-lr {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  list-style: none;
  margin: 0;
  padding: 0;
  gap: 6px;
}

.pagelist-lr li { display: inline-block; }

.pagelist-lr a,
.pagelist-lr span {
  display: inline-block;
  padding: 7px 14px;
  background: var(--c-card);
  color: var(--c-text);
  border: 1px solid var(--c-border);
  border-radius: 6px;
  text-decoration: none;
  font-size: 13px;
  transition: all 0.2s;
}

.pagelist-lr a:hover {
  background: var(--c-primary);
  color: #fff;
  border-color: var(--c-primary);
}

.pagelist-lr .thisclass,
.pagelist-lr .thisclass a {
  background: var(--c-primary);
  color: #fff;
  border-color: var(--c-primary);
  font-weight: 600;
}

.pagelist-lr .pageinfo {
  flex: 1 1 100%;
  width: 100%;
  text-align: center;
  margin-bottom: 6px;
  color: var(--c-text-muted);
  font-size: 13px;
  border: none;
  background: none;
  padding: 0;
}

/* ========== 侧栏 ========== */
.page-sidebar { min-width: 0; }

.sidebar-block {
  background: var(--c-card);
  border: 1px solid var(--c-border-light);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
}

.sidebar-list {
  list-style: none;
  margin: 0;
  padding: 8px 0;
  max-height: 600px;
  overflow-y: auto;
}

.sidebar-item {
  border-bottom: 1px solid var(--c-border-light);
}

.sidebar-item:last-child { border-bottom: none; }

.sidebar-link {
  display: flex;
  gap: 10px;
  padding: 10px 12px;
  text-decoration: none;
  color: var(--c-text);
  transition: background 0.15s;
}

.sidebar-link:hover { background: var(--c-bg); }

.sidebar-thumb {
  flex: 0 0 64px;
  width: 64px;
  height: 48px;
  overflow: hidden;
  border-radius: 6px;
  background: var(--c-bg);
}

.sidebar-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border: none;
}

.sidebar-text {
  flex: 1;
  min-width: 0;
  display: flex;
  align-items: center;
}

.sidebar-item-title {
  font-size: 13px;
  line-height: 1.45;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  color: var(--c-text);
}

/* ========== 内容页 ========== */
.article-header {
  margin-bottom: 20px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--c-border-light);
}

.article-title {
  font-size: clamp(1.3rem, 2.5vw, 1.7rem);
  color: var(--c-dark);
  line-height: 1.4;
  margin: 0 0 12px;
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  font-size: 13px;
  color: var(--c-text-muted);
}

.article-meta a {
  color: var(--c-primary);
  text-decoration: none;
}

.article-litpic {
  margin-bottom: 20px;
  text-align: center;
}

.article-litpic img {
  max-width: 100%;
  border-radius: var(--radius);
  border: 1px solid var(--c-border-light);
  box-shadow: var(--shadow);
}

.article-body {
  background: var(--c-card);
  border: 1px solid var(--c-border-light);
  border-radius: var(--radius);
  padding: 24px;
  line-height: 1.8;
  font-size: 15px;
  color: var(--c-text);
  margin-bottom: 20px;
  word-break: break-word;
  overflow-wrap: break-word;
}

.article-body img {
  max-width: 100%;
  height: auto;
  border-radius: 6px;
}

.z31001diyfield {
  margin-bottom: 20px;
  padding: 16px;
  background: var(--c-bg);
  border: 1px solid var(--c-border-light);
  border-radius: var(--radius);
}

.article-images { margin-bottom: 20px; }

.article-figure {
  margin: 0 0 14px;
  text-align: center;
}

.article-figure img {
  max-width: 100%;
  border-radius: 8px;
  border: 1px solid var(--c-border-light);
}

.article-figure figcaption {
  font-size: 13px;
  color: var(--c-text-muted);
  margin-top: 6px;
}

.z31001meta-tags {
  list-style: none;
  margin: 0 0 20px;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.z31001tagitem a {
  display: inline-block;
  padding: 4px 12px;
  background: var(--c-bg);
  color: var(--c-primary);
  border: 1px solid var(--c-border);
  border-radius: 16px;
  font-size: 12px;
  text-decoration: none;
  transition: all 0.2s;
}

.z31001tagitem a:hover {
  background: var(--c-primary);
  color: #fff;
  border-color: var(--c-primary);
}

.article-prenext {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 28px;
  padding: 16px;
  background: var(--c-bg);
  border: 1px solid var(--c-border-light);
  border-radius: var(--radius);
}

.prenext-item {
  min-width: 0;
  font-size: 14px;
}

.prenext-prev { text-align: left; }
.prenext-next { text-align: right; }

.prenext-item a {
  color: var(--c-text);
  text-decoration: none;
  word-break: break-all;
}

.prenext-item a:hover { color: var(--c-primary); }

.section-subtitle {
  font-size: 1.15rem;
  color: var(--c-dark);
  margin: 0 0 16px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--c-primary);
  display: inline-block;
}

.related-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.related-item {
  margin-bottom: 12px;
  background: var(--c-card);
  border: 1px solid var(--c-border-light);
  border-radius: var(--radius);
  overflow: hidden;
  transition: box-shadow 0.2s;
}

.related-item:hover { box-shadow: var(--shadow-hover); }

.related-link {
  display: flex;
  gap: 12px;
  padding: 12px;
  text-decoration: none;
  color: var(--c-text);
}

.related-thumb {
  flex: 0 0 90px;
  width: 90px;
  height: 68px;
  overflow: hidden;
  border-radius: 6px;
  background: var(--c-bg);
}

.related-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border: none;
}

.related-info {
  flex: 1;
  min-width: 0;
}

.related-title {
  display: block;
  font-size: 14px;
  color: var(--c-dark);
  margin-bottom: 4px;
  line-height: 1.4;
}

.related-desc {
  font-size: 12px;
  color: var(--c-text-muted);
  margin: 0;
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* ========================================
   响应式
   ======================================== */
@media (max-width: 1024px) {
  .service-grid { grid-template-columns: repeat(2, 1fr); }
  .process-track { grid-template-columns: repeat(3, 1fr); }
  .article-home-grid { grid-template-columns: repeat(3, 1fr); }
  .page-layout { grid-template-columns: 1fr 240px; gap: 20px; }
}

@media (max-width: 768px) {
  .nav-toggle { display: block; }

  .nav-list {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    background: var(--c-dark-soft);
    padding: 12px 16px 16px;
    border-bottom: 1px solid rgba(255,255,255,0.1);
    max-height: 70vh;
    overflow-y: auto;
    gap: 2px;
    z-index: 201;
  }

  .nav-list.nav-open { display: flex; }

  .nav-list a {
    padding: 10px 12px;
    font-size: 14px;
  }

  .logo-text { max-width: 140px; }

  .hero { padding: 36px 0 44px; }

  .hero-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .hero-media { order: -1; }

  .hero-img { max-width: 100%; }

  .section { padding: 40px 0; }

  .about-grid,
  .dual-panel,
  .contact-grid,
  .knowledge-grid {
    grid-template-columns: 1fr;
  }

  .process-track { grid-template-columns: repeat(2, 1fr); }

  .service-grid { grid-template-columns: 1fr; }

  .article-home-grid { grid-template-columns: repeat(2, 1fr); }

  .page-layout {
    grid-template-columns: 1fr;
  }

  .sidebar-list { max-height: none; }

  .list-item-link { flex-direction: column; }

  .list-item-thumb {
    flex: none;
    width: 100%;
    height: 180px;
  }

  .article-prenext {
    grid-template-columns: 1fr;
  }

  .prenext-next { text-align: left; }

  .related-link { flex-direction: column; }

  .related-thumb {
    width: 100%;
    height: 160px;
  }

  .floating-contact {
    right: 10px;
    bottom: 14px;
  }

  .float-btn {
    padding: 8px 14px;
    font-size: 12px;
  }
}

@media (max-width: 480px) {
  .container { padding: 0 14px; }

  .process-track { grid-template-columns: 1fr; }

  .article-home-grid { grid-template-columns: 1fr; }

  .hero-actions { flex-direction: column; }

  .hero-actions .btn { width: 100%; }

  .list-item-thumb { height: 150px; }

  .sidebar-thumb {
    flex: 0 0 56px;
    width: 56px;
    height: 42px;
  }

  .pagelist-lr a,
  .pagelist-lr span {
    padding: 6px 10px;
    font-size: 12px;
  }
}