/* ========================================
   卓劲3D打印手板模型厂 · 工业科技风主题
   深蓝黑 + 科技青蓝 + 金属橙
======================================== */
:root {
  /* 色板 */
  --bg-dark: #0b1220;
  --bg-darker: #080d18;
  --bg-card: #111a2c;
  --bg-card-hover: #16223a;
  --line: rgba(120, 160, 220, 0.14);
  --line-strong: rgba(120, 160, 220, 0.28);
  --cyan: #22d3ee;
  --cyan-dim: rgba(34, 211, 238, 0.12);
  --blue: #3b82f6;
  --orange: #ff7a1a;
  --orange-dark: #e05f00;
  --text: #e8eef8;
  --text-dim: #9fb0c8;
  --text-mute: #64748b;
  --white: #ffffff;

  --font-main: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  --font-num: "DIN Alternate", "Bahnschrift", "Arial Narrow", Arial, sans-serif;

  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --header-h: 88px;
  --shadow-card: 0 8px 30px rgba(2, 8, 20, 0.45);
  --shadow-glow: 0 0 24px rgba(34, 211, 238, 0.18);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  font-family: var(--font-main);
  background: var(--bg-dark);
  color: var(--text);
  line-height: 1.7;
  font-size: 16px;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  /* 精密网格纹理 */
  background-image:
    linear-gradient(rgba(120, 160, 220, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(120, 160, 220, 0.04) 1px, transparent 1px);
  background-size: 48px 48px;
}

main { flex: 1; margin-top: var(--header-h); }
main section[id], main article[id] { scroll-margin-top: calc(var(--header-h) + 1rem); }
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }

.container { max-width: 1240px; margin: 0 auto; padding: 0 1.5rem; }

/* ========== 顶部导航 ========== */
.site-header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  height: var(--header-h);
  background: rgba(8, 13, 24, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}
.header-inner {
  max-width: 1240px; margin: 0 auto; height: 100%;
  display: flex; align-items: center; gap: 1.5rem; padding: 0 1.5rem;
}
.logo { display: flex; align-items: center; gap: 0.7rem; flex-shrink: 0; }
.logo-image {
  width: 80px; height: 80px; flex: 0 0 80px; border-radius: var(--radius-sm);
  display: block; object-fit: contain; align-self: center;
}
.logo-text-wrap { display: flex; flex-direction: column; justify-content: center; line-height: 1.2; }
.logo-text { font-size: 1.12rem; font-weight: 700; letter-spacing: 0.02em; }
.logo-sub { font-size: 0.62rem; color: var(--text-mute); letter-spacing: 0.14em; text-transform: uppercase; font-family: var(--font-num); }

.main-nav { display: flex; gap: 0.2rem; margin-left: auto; align-items: center; }
.main-nav a {
  padding: 0.5rem 0.85rem; font-size: 0.93rem; color: var(--text-dim);
  border-radius: var(--radius-sm); transition: all 0.2s; white-space: nowrap;
  position: relative;
}
.main-nav a:hover { color: var(--cyan); background: rgba(34, 211, 238, 0.08); }
.main-nav a.active { color: var(--cyan); font-weight: 600; }
.main-nav a.active::after {
  content: ''; position: absolute; left: 0.85rem; right: 0.85rem; bottom: 2px;
  height: 2px; background: var(--cyan); border-radius: 1px;
  box-shadow: 0 0 8px var(--cyan);
}

.header-cta {
  display: inline-flex; align-items: center; gap: 0.45rem;
  background: linear-gradient(135deg, var(--orange) 0%, var(--orange-dark) 100%);
  color: #fff !important; padding: 0.55rem 1.2rem !important;
  border-radius: var(--radius-sm); font-weight: 600; font-size: 0.9rem !important;
  transition: all 0.2s; box-shadow: 0 4px 16px rgba(255, 122, 26, 0.3);
  /* 工业切角 */
  clip-path: polygon(8px 0, 100% 0, 100% calc(100% - 8px), calc(100% - 8px) 100%, 0 100%, 0 8px);
}
.header-cta:hover { transform: translateY(-1px); box-shadow: 0 6px 22px rgba(255, 122, 26, 0.45); background: linear-gradient(135deg, #ff8a3a 0%, var(--orange) 100%); }

.mobile-toggle {
  display: none; background: none; border: 1px solid var(--line-strong);
  border-radius: var(--radius-sm); padding: 0.45rem; cursor: pointer; color: var(--text);
}
.mobile-toggle svg { width: 22px; height: 22px; display: block; }

/* ========== Hero ========== */
.hero {
  position: relative; overflow: hidden;
  background:
    radial-gradient(ellipse 60% 50% at 75% 40%, rgba(34, 211, 238, 0.12) 0%, transparent 60%),
    radial-gradient(ellipse 45% 40% at 15% 75%, rgba(59, 130, 246, 0.1) 0%, transparent 60%),
    linear-gradient(180deg, var(--bg-darker) 0%, var(--bg-dark) 100%);
  border-bottom: 1px solid var(--line);
  padding: 5.5rem 0 5rem;
}
.hero::before {
  content: ''; position: absolute; inset: 0; pointer-events: none;
  background-image:
    linear-gradient(rgba(34, 211, 238, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(34, 211, 238, 0.05) 1px, transparent 1px);
  background-size: 36px 36px;
  mask-image: radial-gradient(ellipse 80% 70% at 50% 40%, black 30%, transparent 75%);
}
.hero-inner {
  display: grid; grid-template-columns: 1.05fr 0.95fr; gap: 3.5rem; align-items: center;
  position: relative; z-index: 1;
}
.hero-tag {
  display: inline-flex; align-items: center; gap: 0.5rem;
  border: 1px solid var(--line-strong); border-radius: 999px;
  padding: 0.35rem 1rem; font-size: 0.82rem; color: var(--cyan);
  background: var(--cyan-dim); margin-bottom: 1.4rem; letter-spacing: 0.05em;
}
.hero-tag::before {
  content: ''; width: 7px; height: 7px; border-radius: 50%;
  background: var(--cyan); box-shadow: 0 0 8px var(--cyan);
  animation: pulse 2s infinite;
}
@keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: 0.35; } }

.hero h1 {
  font-size: clamp(2rem, 4.2vw, 3.1rem); line-height: 1.25;
  font-weight: 800; letter-spacing: 0.01em; margin-bottom: 1.2rem;
}
.hero h1 .hl {
  background: linear-gradient(120deg, var(--cyan) 0%, var(--blue) 100%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero-desc { color: var(--text-dim); font-size: 1.05rem; max-width: 540px; margin-bottom: 2rem; }
.hero-actions { display: flex; gap: 1rem; flex-wrap: wrap; margin-bottom: 2.6rem; }

.btn {
  display: inline-flex; align-items: center; gap: 0.5rem;
  padding: 0.85rem 1.9rem; border-radius: var(--radius-sm);
  font-weight: 600; font-size: 0.98rem; transition: all 0.2s; border: none; cursor: pointer;
}
.btn-primary {
  background: linear-gradient(135deg, var(--orange) 0%, var(--orange-dark) 100%); color: #fff;
  box-shadow: 0 6px 20px rgba(255, 122, 26, 0.35);
  clip-path: polygon(10px 0, 100% 0, 100% calc(100% - 10px), calc(100% - 10px) 100%, 0 100%, 0 10px);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 10px 28px rgba(255, 122, 26, 0.5); }
.btn-outline {
  background: transparent; color: var(--cyan); border: 1px solid var(--cyan);
}
.btn-outline:hover { background: var(--cyan-dim); box-shadow: var(--shadow-glow); }

.hero-stats { display: flex; gap: 2.5rem; flex-wrap: wrap; }
.hero-stat .num {
  font-family: var(--font-num); font-size: 1.9rem; font-weight: 700; color: var(--cyan);
  line-height: 1.1; letter-spacing: 0.02em;
}
.hero-stat .num em { font-style: normal; font-size: 1rem; color: var(--text-mute); margin-left: 2px; }
.hero-stat .lbl { font-size: 0.82rem; color: var(--text-mute); margin-top: 0.15rem; }

/* Hero 右侧视觉 */
.hero-visual { position: relative; }
.hero-img-main {
  border-radius: var(--radius-lg); overflow: hidden;
  border: 1px solid var(--line-strong);
  box-shadow: var(--shadow-card), var(--shadow-glow);
  position: relative;
}
.hero-img-main img { width: 100%; height: 400px; object-fit: cover; }
.hero-img-badge {
  position: absolute; bottom: 1rem; left: 1rem; right: 1rem;
  background: rgba(8, 13, 24, 0.85); backdrop-filter: blur(8px);
  border: 1px solid var(--line); border-radius: var(--radius-md);
  padding: 0.8rem 1.1rem; display: flex; align-items: center; gap: 0.8rem;
}
.hero-img-badge .dot { width: 9px; height: 9px; border-radius: 50%; background: #34d399; box-shadow: 0 0 8px #34d399; flex-shrink: 0; }
.hero-img-badge .txt { font-size: 0.85rem; color: var(--text-dim); }
.hero-img-badge .txt b { color: var(--text); display: block; font-size: 0.92rem; }

/* ========== 通用 Section ========== */
.section { padding: 4.5rem 0; }
.section-darker { background: var(--bg-darker); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }

.sec-head { margin-bottom: 2.8rem; }
.sec-head.center { text-align: center; }
.sec-kicker {
  display: inline-flex; align-items: center; gap: 0.6rem;
  font-family: var(--font-num); font-size: 0.8rem; letter-spacing: 0.22em;
  color: var(--cyan); text-transform: uppercase; margin-bottom: 0.7rem;
}
.sec-kicker::before { content: ''; width: 26px; height: 1px; background: var(--cyan); }
.sec-head.center .sec-kicker::after { content: ''; width: 26px; height: 1px; background: var(--cyan); }
.sec-title { font-size: clamp(1.6rem, 3vw, 2.2rem); font-weight: 800; letter-spacing: 0.01em; }
.sec-desc { color: var(--text-dim); margin-top: 0.6rem; max-width: 640px; }
.sec-head.center .sec-desc { margin-left: auto; margin-right: auto; }

/* ========== 卡片网格 ========== */
.grid { display: grid; gap: 1.4rem; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

.tech-card {
  background: var(--bg-card); border: 1px solid var(--line);
  border-radius: var(--radius-md); padding: 1.8rem 1.6rem;
  transition: all 0.25s; position: relative; overflow: hidden;
}
.tech-card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 2px;
  background: linear-gradient(90deg, var(--cyan), transparent 70%);
  opacity: 0; transition: opacity 0.25s;
}
.tech-card:hover { background: var(--bg-card-hover); border-color: var(--line-strong); transform: translateY(-4px); box-shadow: var(--shadow-card); }
.tech-card:hover::before { opacity: 1; }

/* “关于我们 / 设计团队”卡片始终保持可见，不参与透明度入场 */
.team-card-solid { opacity: 1 !important; visibility: visible !important; }

.card-icon {
  width: 50px; height: 50px; border-radius: var(--radius-sm);
  background: var(--cyan-dim); border: 1px solid rgba(34, 211, 238, 0.25);
  display: flex; align-items: center; justify-content: center;
  color: var(--cyan); font-size: 1.35rem; margin-bottom: 1.1rem;
}
.tech-card h3 { font-size: 1.08rem; font-weight: 700; margin-bottom: 0.5rem; }
.tech-card p { font-size: 0.9rem; color: var(--text-dim); }

/* ========== 材料/产品图卡 ========== */
.mat-card {
  background: var(--bg-card); border: 1px solid var(--line);
  border-radius: var(--radius-md); overflow: hidden; transition: all 0.25s;
}
.mat-card:hover { border-color: var(--line-strong); transform: translateY(-4px); box-shadow: var(--shadow-card); }
.mat-thumb { position: relative; overflow: hidden; aspect-ratio: 4/3; background: var(--bg-darker); }
.mat-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.4s; }
.mat-card:hover .mat-thumb img { transform: scale(1.06); }
.mat-tag {
  position: absolute; top: 0.7rem; left: 0.7rem;
  background: rgba(8, 13, 24, 0.85); backdrop-filter: blur(6px);
  border: 1px solid var(--line-strong); color: var(--cyan);
  font-size: 0.72rem; padding: 0.2rem 0.65rem; border-radius: 3px;
  font-family: var(--font-num); letter-spacing: 0.08em;
}
.mat-body { padding: 1.1rem 1.2rem 1.3rem; }
.mat-body h3 { font-size: 1rem; font-weight: 700; margin-bottom: 0.3rem; }
.mat-body p { font-size: 0.84rem; color: var(--text-dim); }

/* ========== 应用领域 ========== */
.app-card {
  background: var(--bg-card); border: 1px solid var(--line);
  border-radius: var(--radius-md); padding: 1.7rem 1.5rem; transition: all 0.25s;
  position: relative;
}
.app-card:hover { border-color: rgba(34, 211, 238, 0.4); box-shadow: var(--shadow-glow); }
.app-num {
  font-family: var(--font-num); font-size: 0.78rem; color: var(--text-mute);
  letter-spacing: 0.15em; margin-bottom: 0.8rem;
}
.app-card h3 { font-size: 1.05rem; font-weight: 700; margin-bottom: 0.5rem; display: flex; align-items: center; gap: 0.55rem; }
.app-card h3 i { color: var(--cyan); font-size: 1.15rem; }
.app-card p { font-size: 0.88rem; color: var(--text-dim); }

/* ========== 流程 ========== */
.flow { display: grid; grid-template-columns: repeat(6, 1fr); gap: 1rem; counter-reset: step; }
.flow-step {
  background: var(--bg-card); border: 1px solid var(--line); border-radius: var(--radius-md);
  padding: 1.5rem 1.1rem; text-align: center; position: relative; transition: all 0.25s;
}
.flow-step:hover { border-color: rgba(34, 211, 238, 0.4); transform: translateY(-3px); }
.flow-step .step-num {
  width: 44px; height: 44px; margin: 0 auto 0.9rem; border-radius: 50%;
  background: var(--cyan-dim); border: 1px solid rgba(34, 211, 238, 0.35);
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-num); font-weight: 700; font-size: 1.1rem; color: var(--cyan);
}
.flow-step h4 { font-size: 0.95rem; font-weight: 700; margin-bottom: 0.35rem; }
.flow-step p { font-size: 0.78rem; color: var(--text-mute); line-height: 1.55; }

/* ========== 页头 Banner（子页面） ========== */
.page-banner {
  background:
    radial-gradient(ellipse 55% 70% at 70% 30%, rgba(34, 211, 238, 0.1) 0%, transparent 60%),
    linear-gradient(180deg, var(--bg-darker) 0%, var(--bg-dark) 100%);
  border-bottom: 1px solid var(--line);
  padding: 3.8rem 0 3.2rem; position: relative; overflow: hidden;
}
.page-banner::before {
  content: ''; position: absolute; inset: 0; pointer-events: none;
  background-image:
    linear-gradient(rgba(34, 211, 238, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(34, 211, 238, 0.04) 1px, transparent 1px);
  background-size: 36px 36px;
  mask-image: radial-gradient(ellipse 75% 80% at 50% 30%, black 25%, transparent 75%);
}
.page-banner h1 { font-size: clamp(1.8rem, 3.4vw, 2.5rem); font-weight: 800; position: relative; }
.page-banner .sub { color: var(--text-dim); margin-top: 0.6rem; position: relative; max-width: 640px; }
.breadcrumb { display: flex; gap: 0.5rem; font-size: 0.82rem; color: var(--text-mute); margin-bottom: 1rem; position: relative; }
.breadcrumb a { color: var(--text-dim); }
.breadcrumb a:hover { color: var(--cyan); }
.breadcrumb span::before { content: '/'; margin-right: 0.5rem; color: var(--text-mute); }

/* ========== 规格表 ========== */
.spec-table { width: 100%; border-collapse: collapse; }
.spec-table th, .spec-table td {
  padding: 0.75rem 1rem; text-align: left; font-size: 0.9rem;
  border-bottom: 1px solid var(--line);
}
.spec-table th { color: var(--text-mute); font-weight: 500; width: 35%; }
.spec-table td { color: var(--text); }

/* ========== 后台结构化业务内容 ========== */
.material-index { padding-bottom: 2.6rem; }
.material-nav { display: flex; flex-wrap: wrap; justify-content: center; gap: 0.75rem; }
.material-nav .btn { padding: 0.65rem 1rem; font-size: 0.86rem; }
.mat-section { border-top: 1px solid var(--line); }
.mat-section:nth-of-type(even), .application-section:nth-of-type(odd) { background: var(--bg-darker); }
.material-layout, .application-layout { gap: 2.8rem; align-items: start; }
.business-summary { color: var(--text-dim); margin: 0.8rem 0 1.5rem; }

/* 键盘导航 */
.skip-link {
  position: fixed; z-index: 9999; top: 0.75rem; left: 0.75rem;
  padding: 0.7rem 1rem; border-radius: var(--radius-sm);
  color: #061019; background: var(--cyan); font-weight: 700;
  transform: translateY(-160%); transition: transform 0.2s ease;
}
.skip-link:focus { transform: translateY(0); }

/* GEO / 常见问题 */
.faq-grid { max-width: 920px; margin: 0 auto; display: grid; gap: 0.85rem; }
.faq-item {
  border: 1px solid var(--line); border-radius: var(--radius-md);
  background: var(--bg-card); overflow: hidden;
}
.faq-item[open] { border-color: var(--line-strong); background: var(--bg-card-hover); }
.faq-item summary {
  position: relative; cursor: pointer; list-style: none;
  padding: 1.15rem 3.3rem 1.15rem 1.25rem;
  color: var(--text); font-size: 1rem; font-weight: 700;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: '+'; position: absolute; right: 1.25rem; top: 50%;
  color: var(--cyan); font-size: 1.35rem; line-height: 1;
  transform: translateY(-50%);
}
.faq-item[open] summary::after { content: '\2212'; }
.faq-item p { padding: 0 1.25rem 1.2rem; color: var(--text-dim); font-size: 0.94rem; }
.about-richtext { color: var(--text-dim); margin: 1.2rem 0 0; }
.about-richtext > *:first-child { margin-top: 0; }
.about-richtext > *:last-child { margin-bottom: 0; }
.about-richtext p { color: var(--text-dim); margin: 0 0 1rem; white-space: pre-line; }
.about-richtext h2,
.about-richtext h3,
.about-richtext h4 { color: var(--text); margin: 1.25rem 0 0.65rem; line-height: 1.35; }
.about-richtext ul,
.about-richtext ol { color: var(--text-dim); margin: 0 0 1rem 1.25rem; }
.about-richtext li { margin-bottom: 0.4rem; }
.about-richtext a { color: var(--cyan); text-decoration: underline; text-underline-offset: 0.2em; }
.about-richtext strong { color: var(--text); }
.about-richtext img,
.about-richtext video { max-width: 100%; height: auto; border-radius: var(--radius-md); }
.about-richtext--home { margin-bottom: 1.8rem; }
.about-richtext--home img,
.about-richtext--home video,
.about-richtext--home iframe { display: none; }
.mat-h4 { display: flex; align-items: center; gap: 0.55rem; margin: 1.4rem 0 0.75rem; font-size: 0.96rem; }
.mat-h4 i { color: var(--cyan); }
.feat-list { display: grid; gap: 0.55rem; }
.feat-list li { display: flex; align-items: flex-start; gap: 0.55rem; color: var(--text-dim); font-size: 0.9rem; }
.feat-list li i { color: var(--cyan); margin-top: 0.35rem; font-size: 0.72rem; }
.scene-tags { display: flex; flex-wrap: wrap; gap: 0.55rem; }
.scene-tags span, .business-tag {
  display: inline-flex; width: fit-content; padding: 0.3rem 0.7rem;
  border: 1px solid var(--line-strong); border-radius: 999px;
  background: var(--cyan-dim); color: var(--cyan); font-size: 0.76rem;
}
.spec-wrap { margin-top: 1.3rem; border: 1px solid var(--line); border-radius: var(--radius-md); overflow: hidden; }
.mat-gallery { gap: 0.85rem; }
.mat-gallery .mat-card { opacity: 1 !important; visibility: visible !important; }
.mat-gallery .mat-card.fade-in-up { transform: none !important; }
.mat-gallery .mat-body { padding: 0.8rem 0.9rem; }
.mat-gallery .mat-body h3 { font-size: 0.88rem; }
.mat-gallery .mat-body p { font-size: 0.76rem; }
.equipment-grid { align-items: stretch; }
.equipment-card { height: 100%; }
.equipment-card.tech-card { display: flex; flex-direction: column; align-items: flex-start; }
.equipment-card .business-tag { margin-bottom: 0.8rem; }
.application-layout { align-items: center; }
.application-section:nth-of-type(odd) .application-media { order: -1; }
.application-copy .sec-title i { color: var(--cyan); margin-right: 0.55rem; }
.application-points { display: grid; gap: 0.65rem; margin-bottom: 1.4rem; }
.application-points li { display: flex; gap: 0.65rem; color: var(--text-dim); font-size: 0.9rem; }
.application-points li > i { color: var(--cyan); margin-top: 0.35rem; }
.application-points strong { color: var(--text); }

/* ========== 联系表单 ========== */
.contact-grid { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: 2.5rem; align-items: start; }
.contact-card {
  background: var(--bg-card); border: 1px solid var(--line); border-radius: var(--radius-md);
  padding: 1.4rem 1.5rem; display: flex; gap: 1rem; align-items: flex-start;
  margin-bottom: 1.1rem; transition: all 0.25s;
}
.contact-card:hover { border-color: var(--line-strong); }
.contact-card .card-icon { margin-bottom: 0; flex-shrink: 0; width: 44px; height: 44px; font-size: 1.1rem; }
.contact-card h4 { font-size: 0.95rem; font-weight: 700; margin-bottom: 0.2rem; }
.contact-card p { font-size: 0.92rem; color: var(--text-dim); }
.contact-card p b { color: var(--cyan); font-family: var(--font-num); font-size: 1.05rem; }

.form-panel {
  background: var(--bg-card); border: 1px solid var(--line); border-radius: var(--radius-md);
  padding: 2rem;
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.form-group { margin-bottom: 1.1rem; }
.form-group label { display: block; font-size: 0.85rem; color: var(--text-dim); margin-bottom: 0.4rem; }
.form-group input, .form-group select, .form-group textarea {
  width: 100%; background: var(--bg-darker); border: 1px solid var(--line);
  border-radius: var(--radius-sm); padding: 0.7rem 0.9rem; color: var(--text);
  font-size: 0.92rem; font-family: var(--font-main); transition: border-color 0.2s;
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
  outline: none; border-color: var(--cyan); box-shadow: 0 0 0 3px rgba(34, 211, 238, 0.12);
}
.form-group textarea { resize: vertical; min-height: 110px; }

/* ========== 页脚 ========== */
.site-footer {
  background: var(--bg-darker); border-top: 1px solid var(--line);
  padding: 3.5rem 0 0; margin-top: auto;
}
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.2fr; gap: 2.5rem; padding-bottom: 2.5rem; }
.footer-brand p { font-size: 0.88rem; color: var(--text-mute); margin-top: 1rem; max-width: 300px; }
.footer-col h4 { font-size: 0.95rem; font-weight: 700; margin-bottom: 1rem; color: var(--text); }
.footer-col ul li { margin-bottom: 0.55rem; }
.footer-col a, .footer-col li { font-size: 0.87rem; color: var(--text-mute); transition: color 0.2s; }
.footer-col a:hover { color: var(--cyan); }
.footer-col li i { color: var(--cyan); margin-right: 0.5rem; width: 14px; }
.footer-bottom {
  border-top: 1px solid var(--line); padding: 1.3rem 0;
  display: flex; justify-content: space-between; gap: 1rem; flex-wrap: wrap;
  font-size: 0.8rem; color: var(--text-mute);
}
.footer-legal { display: flex; align-items: center; gap: 1rem; flex-wrap: wrap; }
.footer-record { color: var(--text-mute); transition: color 0.2s; }
.footer-record:hover { color: var(--cyan); }

/* ========== CTA 横幅 ========== */
.cta-band {
  background:
    radial-gradient(ellipse 60% 90% at 50% 50%, rgba(255, 122, 26, 0.12) 0%, transparent 65%),
    var(--bg-darker);
  border: 1px solid var(--line); border-radius: var(--radius-lg);
  padding: 3.2rem 2.5rem; text-align: center;
}
.cta-band h2 { font-size: clamp(1.5rem, 2.8vw, 2rem); font-weight: 800; margin-bottom: 0.7rem; }
.cta-band p { color: var(--text-dim); margin-bottom: 1.8rem; }

/* ========== 入场动画：元素始终可见，仅保留位移动效 ========== */
.fade-in-up { opacity: 1 !important; visibility: visible !important; transform: translateY(28px); transition: transform 0.65s ease; }
.fade-in-up.visible { transform: translateY(0); }

/* 三维打印动效层：只在动画期间参与渲染，不改变组件最终样式 */
body.motion-enhanced .fade-in-up { transition: none; }
.motion-tilt {
  transform-style: preserve-3d;
  backface-visibility: hidden;
}
.motion-tilt.is-motion-active,
.motion-magnetic.is-motion-active { will-change: transform; }

.print-scan-stage { isolation: isolate; }
.print-scan-overlay {
  position: absolute; inset: 0; z-index: 4; overflow: hidden;
  border-radius: inherit; pointer-events: none; opacity: 0;
}
.print-layer-grid {
  position: absolute; inset: 0;
  background: repeating-linear-gradient(
    to bottom,
    rgba(34, 211, 238, 0.11) 0,
    rgba(34, 211, 238, 0.11) 1px,
    transparent 1px,
    transparent 7px
  );
  mix-blend-mode: screen;
}
.print-scan-beam {
  position: absolute; left: 0; right: 0; top: 0; height: 2px;
  background: linear-gradient(90deg, transparent 0%, var(--cyan) 18%, var(--white) 50%, var(--cyan) 82%, transparent 100%);
  box-shadow: 0 0 10px rgba(34, 211, 238, 0.9), 0 0 24px rgba(34, 211, 238, 0.45);
  transform: translateY(-8px);
}
.print-scan-beam::after {
  content: ''; position: absolute; left: 50%; top: -4px;
  width: 32px; height: 8px; transform: translateX(-50%);
  border: 1px solid rgba(34, 211, 238, 0.7);
  background: rgba(8, 13, 24, 0.8);
}

.page-banner.print-scan-stage > .print-scan-overlay {
  border-radius: 0;
  opacity: 0.6;
}

@media (prefers-reduced-motion: reduce) {
  .fade-in-up { opacity: 1; transform: none; transition: none; }
  .print-scan-overlay { display: none !important; }
}

/* ========== 新闻中心 ========== */
.news-card {
  display: flex; flex-direction: column;
  background: var(--bg-card); border: 1px solid var(--line);
  border-radius: var(--radius-lg); overflow: hidden; transition: all 0.3s;
}
.news-card:hover { border-color: var(--line-strong); transform: translateY(-4px); box-shadow: var(--shadow-card); }
.news-thumb { position: relative; overflow: hidden; aspect-ratio: 16/9; background: var(--bg-darker); }
.news-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.4s; }
.news-card:hover .news-thumb img { transform: scale(1.06); }
.news-cat {
  position: absolute; top: 0.9rem; left: 0.9rem; z-index: 2;
  font-size: 0.72rem; padding: 0.22rem 0.65rem;
  background: rgba(8, 13, 24, 0.72); border: 1px solid var(--line-strong);
  color: var(--cyan); border-radius: 999px; backdrop-filter: blur(4px);
}
.news-body { padding: 1.2rem 1.3rem 1.4rem; display: flex; flex-direction: column; gap: 0.55rem; flex: 1; }
.news-date { font-size: 0.78rem; color: var(--text-mute); font-family: var(--font-num); display: flex; align-items: center; gap: 0.45rem; }
.news-date i { color: var(--cyan); }
.news-body h3 { font-size: 1.02rem; font-weight: 700; line-height: 1.5; transition: color 0.25s; }
.news-card:hover .news-body h3 { color: var(--cyan); }
.news-body p { font-size: 0.86rem; color: var(--text-dim); flex: 1; }
.news-more { font-size: 0.84rem; color: var(--cyan); display: inline-flex; align-items: center; gap: 0.4rem; margin-top: 0.2rem; }
.news-more i { transition: transform 0.25s; }
.news-card:hover .news-more i { transform: translateX(4px); }

/* 新闻列表页：横向条目 */
.news-list { display: grid; gap: 1.4rem; }
.news-item {
  display: grid; grid-template-columns: 280px minmax(0, 1fr); align-items: stretch;
  background: var(--bg-card); border: 1px solid var(--line);
  border-radius: var(--radius-lg); overflow: hidden; transition: all 0.3s;
}
.news-item:hover { border-color: var(--line-strong); transform: translateY(-3px); box-shadow: var(--shadow-card); }
.news-item .news-thumb { width: 100%; height: 210px; min-height: 0; aspect-ratio: auto; }
.news-item:hover .news-thumb img { transform: scale(1.06); }
.news-item .news-body { min-width: 0; padding: 1.4rem 1.8rem; }
.news-item .news-body h3 { font-size: 1.12rem; }
.news-item .news-body p { display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.news-pagination { margin-top: 2.2rem; text-align: center; }
.news-pagination:empty { display: none; }
.news-pagination a, .news-pagination span {
  display: inline-flex; min-width: 38px; height: 38px; margin: 0.2rem;
  padding: 0 0.75rem; align-items: center; justify-content: center;
  border: 1px solid var(--line); border-radius: var(--radius-sm);
  background: var(--bg-card); color: var(--text-dim); font-size: 0.84rem;
}
.news-pagination a:hover, .news-pagination .active, .news-pagination .current {
  border-color: var(--cyan); color: var(--cyan); background: var(--cyan-dim);
}

/* 新闻详情页 */
.article-wrap { max-width: 860px; margin: 0 auto; }
.article-meta {
  display: flex; align-items: center; gap: 1rem; flex-wrap: wrap;
  font-size: 0.84rem; color: var(--text-mute);
  padding-bottom: 1.2rem; margin-bottom: 1.6rem; border-bottom: 1px solid var(--line);
}
.article-meta i { color: var(--cyan); margin-right: 0.35rem; }
.article-meta .news-cat { position: static; backdrop-filter: none; }
.article-cover { border-radius: var(--radius-lg); overflow: hidden; border: 1px solid var(--line); margin-bottom: 2rem; }
.article-cover img { width: 100%; max-height: 420px; object-fit: cover; }
.article-body h2 {
  font-size: 1.25rem; font-weight: 700; margin: 2.2rem 0 0.8rem;
  padding-left: 0.8rem; border-left: 3px solid var(--cyan);
}
.article-body p { color: var(--text-dim); font-size: 0.95rem; margin-bottom: 1rem; }
.article-body p strong, .article-body li strong { color: var(--text); }
.article-body ul { margin: 0 0 1rem 0; display: grid; gap: 0.55rem; }
.article-body ul li { position: relative; padding-left: 1.3rem; color: var(--text-dim); font-size: 0.95rem; }
.article-body ul li::before {
  content: ''; position: absolute; left: 0; top: 0.62em;
  width: 7px; height: 7px; border-radius: 2px; background: var(--cyan); opacity: 0.75;
}
.article-body blockquote {
  margin: 1.4rem 0; padding: 1rem 1.3rem;
  background: var(--cyan-dim); border-left: 3px solid var(--cyan);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  color: var(--text-dim); font-size: 0.94rem;
}
.article-nav { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; margin-top: 2.8rem; }
.article-nav a {
  display: block; padding: 1rem 1.2rem;
  background: var(--bg-card); border: 1px solid var(--line);
  border-radius: var(--radius-md); transition: all 0.25s;
}
.article-nav a:hover { border-color: var(--line-strong); background: var(--bg-card-hover); }
.article-nav .nav-lbl { font-size: 0.76rem; color: var(--text-mute); display: flex; align-items: center; gap: 0.4rem; margin-bottom: 0.3rem; }
.article-nav .nav-lbl i { color: var(--cyan); }
.article-nav .nav-title { font-size: 0.92rem; font-weight: 600; color: var(--text); }
.article-nav a.next { text-align: right; }
.article-nav a.next .nav-lbl { justify-content: flex-end; }
.article-nav a.disabled { opacity: 0.45; pointer-events: none; }

/* ========== 响应式 ========== */
@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .flow { grid-template-columns: repeat(3, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 860px) {
  .hero-inner { grid-template-columns: 1fr; gap: 2.5rem; }
  .hero { padding: 3.5rem 0 3rem; }
  .hero-img-main img { height: 300px; }
  .contact-grid { grid-template-columns: 1fr; }
  .main-nav {
    display: none; position: absolute; top: var(--header-h); left: 0; right: 0;
    background: rgba(8, 13, 24, 0.98); border-bottom: 1px solid var(--line);
    flex-direction: column; padding: 1rem 1.5rem; gap: 0.2rem; align-items: stretch;
  }
  .main-nav.open { display: flex; }
  .main-nav a { padding: 0.75rem 0.5rem; border-bottom: 1px solid var(--line); }
  .mobile-toggle { display: block; margin-left: auto; }
  .header-cta { display: none; }
}
@media (max-width: 640px) {
  .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .grid-2 { grid-template-columns: 1fr; }
  .flow { grid-template-columns: 1fr 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .hero-stats { gap: 1.5rem; }
  .section { padding: 3rem 0; }
  .application-section:nth-of-type(odd) .application-media { order: initial; }
}
@media (max-width: 760px) {
  .news-item { grid-template-columns: 1fr; }
  .news-item .news-thumb { height: auto; min-height: 0; aspect-ratio: 16/9; }
  .news-item .news-body { padding: 1.25rem 1.3rem 1.4rem; }
  .article-nav { grid-template-columns: 1fr; }
  .article-nav a.next { text-align: left; }
  .article-nav a.next .nav-lbl { justify-content: flex-start; }
}