/* ============================================================
   PRACDIY — RC Racing Parts 官网样式
   主题：暗黑竞速风 · 碳纤维质感 · 赛车橙点缀
   ============================================================ */

:root {
  --bg: #0a0b0d;
  --bg-2: #101216;
  --panel: #15171c;
  --panel-2: #1b1e24;
  --line: #262a33;
  --text: #eef0f4;
  --muted: #9aa1ad;
  --accent: #ff5a1f;
  --accent-2: #ffb347;
  --accent-soft: rgba(255, 90, 31, 0.13);
  --radius: 14px;
  --container: 1200px;
  --shadow: 0 18px 48px rgba(0, 0, 0, 0.45);
  --font: -apple-system, BlinkMacSystemFont, "SF Pro Text", "PingFang SC",
          "Hiragino Sans GB", "Microsoft YaHei", "Segoe UI", Roboto, sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: 84px; }

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }

.container { max-width: var(--container); margin: 0 auto; padding: 0 24px; }
.container-narrow { max-width: 820px; }

.accent { color: var(--accent); }
.accent-grad {
  background: linear-gradient(100deg, var(--accent) 10%, var(--accent-2) 90%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 30px;
  border-radius: 999px;
  border: 1px solid transparent;
  background: linear-gradient(100deg, var(--accent) 0%, #ff7a3d 100%);
  color: #14100c;
  font-weight: 700;
  font-size: 15px;
  letter-spacing: 0.02em;
  cursor: pointer;
  transition: transform 0.18s ease, box-shadow 0.18s ease, filter 0.18s ease;
}
.btn:hover { transform: translateY(-2px); box-shadow: 0 10px 28px rgba(255, 90, 31, 0.35); filter: brightness(1.05); }
.btn-ghost { background: transparent; border-color: rgba(255, 255, 255, 0.28); color: var(--text); }
.btn-ghost:hover { border-color: var(--accent); color: var(--accent); box-shadow: 0 10px 28px rgba(255, 90, 31, 0.18); }
.btn-sm { padding: 9px 22px; font-size: 14px; }
.btn-block { width: 100%; }

/* ---------- 导航 ---------- */
.nav {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 100;
  padding: 14px 0;
  transition: background 0.25s ease, padding 0.25s ease, box-shadow 0.25s ease;
}
.nav.scrolled {
  padding: 8px 0;
  background: rgba(10, 11, 13, 0.86);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}
.nav-inner { display: flex; align-items: center; justify-content: space-between; gap: 24px; }

.brand { display: flex; align-items: center; gap: 10px; }
.brand-mark {
  width: 40px; height: 40px;
  display: grid; place-items: center;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #14100c;
  font-size: 22px; font-weight: 900;
  font-style: italic;
  box-shadow: 0 6px 18px rgba(255, 90, 31, 0.35);
}
.brand-text { display: flex; flex-direction: column; line-height: 1.15; }
.brand-name { font-size: 19px; font-weight: 800; letter-spacing: 0.04em; }
.brand-sub { font-size: 10px; letter-spacing: 0.32em; color: var(--muted); }

.menu { display: flex; gap: 30px; }
.menu a {
  font-size: 15px;
  color: #c9cdd6;
  position: relative;
  padding: 4px 0;
  transition: color 0.18s ease;
}
.menu a::after {
  content: "";
  position: absolute;
  left: 0; bottom: -2px;
  width: 0; height: 2px;
  border-radius: 2px;
  background: var(--accent);
  transition: width 0.22s ease;
}
.menu a:hover { color: var(--text); }
.menu a:hover::after { width: 100%; }

.nav-actions { display: flex; align-items: center; gap: 14px; }

.nav-toggle {
  display: none;
  width: 40px; height: 40px;
  background: transparent;
  border: 1px solid var(--line);
  border-radius: 10px;
  cursor: pointer;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
}
.nav-toggle span {
  width: 18px; height: 2px;
  border-radius: 2px;
  background: var(--text);
  transition: transform 0.22s ease, opacity 0.22s ease;
}
.nav-toggle.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.active span:nth-child(2) { opacity: 0; }
.nav-toggle.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- 首屏 ---------- */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: center;
  padding: 130px 0 90px;
  overflow: hidden;
}
.hero-bg {
  position: absolute;
  inset: 0;
  background-image: url("../assets/img/hero-rc-car.jpg");
  background-size: cover;
  background-position: center 40%;
}
.hero-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(75deg, rgba(10, 11, 13, 0.94) 0%, rgba(10, 11, 13, 0.72) 42%, rgba(10, 11, 13, 0.35) 100%),
    linear-gradient(0deg, var(--bg) 2%, transparent 30%);
}
/* 速度线 */
.hero::before {
  content: "";
  position: absolute;
  inset: -30% -10%;
  pointer-events: none;
  background: repeating-linear-gradient(
    -55deg,
    transparent 0 90px,
    rgba(255, 90, 31, 0.05) 90px 92px,
    transparent 92px 180px
  );
}

.hero-inner { position: relative; z-index: 2; }
.hero-eyebrow {
  display: inline-block;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.42em;
  color: var(--accent);
  border: 1px solid rgba(255, 90, 31, 0.45);
  border-radius: 999px;
  padding: 7px 18px 7px 21px;
  background: rgba(255, 90, 31, 0.08);
  margin-bottom: 26px;
}
.hero-title {
  font-size: clamp(40px, 6.4vw, 78px);
  font-weight: 900;
  line-height: 1.12;
  letter-spacing: 0.01em;
}
.hero-sub {
  margin-top: 22px;
  font-size: clamp(15px, 1.6vw, 18px);
  color: #c3c8d2;
  line-height: 1.9;
}
.hero-cta { margin-top: 36px; display: flex; gap: 16px; flex-wrap: wrap; }

.hero-stats {
  margin-top: 64px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  max-width: 900px;
}
.stat {
  padding: 18px 20px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius);
  background: rgba(16, 18, 22, 0.55);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}
.stat-num {
  font-size: 30px;
  font-weight: 900;
  line-height: 1.1;
  font-variant-numeric: tabular-nums;
  color: var(--accent-2);
}
.stat-num .stat-unit { font-size: 15px; color: var(--muted); margin-left: 4px; font-weight: 700; }
.stat-text { font-size: 22px; letter-spacing: 0.06em; }
.stat-label { margin-top: 5px; font-size: 13px; color: var(--muted); }

.hero-scroll {
  position: absolute;
  left: 50%; bottom: 26px;
  transform: translateX(-50%);
  width: 24px; height: 40px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-radius: 12px;
  z-index: 2;
}
.hero-scroll span {
  position: absolute;
  left: 50%; top: 8px;
  width: 3px; height: 9px;
  margin-left: -1.5px;
  border-radius: 2px;
  background: var(--accent);
  animation: scrollDot 1.6s ease-in-out infinite;
}
@keyframes scrollDot {
  0% { transform: translateY(0); opacity: 1; }
  70% { transform: translateY(14px); opacity: 0; }
  100% { transform: translateY(0); opacity: 0; }
}

/* ---------- 通用 section ---------- */
.section { padding: 96px 0; }
.section-dark {
  background: var(--bg-2);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.carbon {
  background-color: #0e1013;
  background-image:
    repeating-linear-gradient(45deg, rgba(255, 255, 255, 0.022) 0 2px, transparent 2px 7px),
    repeating-linear-gradient(-45deg, rgba(255, 255, 255, 0.022) 0 2px, transparent 2px 7px);
}

.sec-head { text-align: center; max-width: 720px; margin: 0 auto 58px; }
.sec-tag {
  display: inline-block;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.34em;
  color: var(--accent);
  margin-bottom: 14px;
}
.sec-head h2 {
  font-size: clamp(28px, 3.6vw, 42px);
  font-weight: 900;
  line-height: 1.25;
}
.sec-head p { margin-top: 14px; color: var(--muted); font-size: 15px; }

/* ---------- 产品中心 ---------- */
.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 22px;
}
.p-card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: transform 0.22s ease, border-color 0.22s ease, box-shadow 0.22s ease;
}
.p-card:hover {
  transform: translateY(-5px);
  border-color: rgba(255, 90, 31, 0.55);
  box-shadow: var(--shadow);
}
.p-media { position: relative; aspect-ratio: 1 / 1; overflow: hidden; background: #101114; }
.p-media img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 0.45s ease;
}
.p-card:hover .p-media img { transform: scale(1.06); }
.p-badge {
  position: absolute;
  top: 14px; left: 14px;
  font-size: 12px;
  font-weight: 700;
  padding: 5px 12px;
  border-radius: 999px;
  background: rgba(10, 11, 13, 0.72);
  border: 1px solid rgba(255, 90, 31, 0.5);
  color: var(--accent-2);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}
.p-body { padding: 22px 22px 24px; display: flex; flex-direction: column; flex: 1; }
.p-body h3 { font-size: 20px; font-weight: 800; }
.p-desc { margin-top: 9px; font-size: 14px; color: var(--muted); flex: 1; }
.p-specs {
  margin-top: 16px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.p-specs li {
  font-size: 12.5px;
  color: #cdd2da;
  background: var(--panel-2);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 4px 12px;
}
.p-link {
  margin-top: 18px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 700;
  color: var(--accent);
}
.p-link span { transition: transform 0.18s ease; }
.p-link:hover span { transform: translateX(4px); }

/* ---------- 技术实力 ---------- */
.tech-split {
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: 48px;
  align-items: center;
}
.tech-media {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}
.tech-media img { width: 100%; height: 100%; object-fit: cover; aspect-ratio: 16 / 10; }
.tech-badge {
  position: absolute;
  right: 18px; bottom: 18px;
  display: flex;
  align-items: baseline;
  gap: 6px;
  padding: 12px 22px;
  border-radius: var(--radius);
  background: rgba(10, 11, 13, 0.78);
  border: 1px solid rgba(255, 90, 31, 0.55);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}
.tb-num {
  font-size: 46px;
  font-weight: 900;
  font-variant-numeric: tabular-nums;
  background: linear-gradient(100deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  line-height: 1;
}
.tb-unit { font-size: 15px; font-weight: 800; color: var(--text); }

.tech-text h3 { font-size: 26px; font-weight: 900; margin-bottom: 16px; }
.tech-text p { color: #c3c8d2; margin-bottom: 14px; }
.tech-text strong { color: var(--accent-2); }
.tech-note { font-size: 13px; color: var(--muted); }
.tech-text .btn { margin-top: 12px; }

.material-grid {
  margin-top: 52px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.m-card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 26px 24px;
  transition: border-color 0.2s ease, transform 0.2s ease;
}
.m-card:hover { border-color: rgba(255, 90, 31, 0.5); transform: translateY(-3px); }
.m-icon {
  width: 52px; height: 52px;
  display: grid; place-items: center;
  border-radius: 12px;
  font-weight: 900;
  font-size: 17px;
  color: var(--accent-2);
  background: var(--accent-soft);
  border: 1px solid rgba(255, 90, 31, 0.35);
  margin-bottom: 16px;
}
.m-card h4 { font-size: 18px; font-weight: 800; margin-bottom: 8px; }
.m-card p { font-size: 14px; color: var(--muted); }

/* ---------- 核心优势 ---------- */
.why-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.w-card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px 26px;
  transition: transform 0.2s ease, border-color 0.2s ease;
}
.w-card:hover { transform: translateY(-4px); border-color: rgba(255, 90, 31, 0.5); }
.w-card svg { width: 34px; height: 34px; color: var(--accent); margin-bottom: 16px; }
.w-card h4 { font-size: 17px; font-weight: 800; margin-bottom: 8px; }
.w-card p { font-size: 14px; color: var(--muted); }

/* ---------- 定制服务 ---------- */
.oem-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  counter-reset: step;
}
.step {
  position: relative;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px 24px;
  overflow: hidden;
}
.step::after {
  content: "";
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 3px;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s ease;
}
.step:hover::after { transform: scaleX(1); }
.step-num {
  font-size: 34px;
  font-weight: 900;
  font-variant-numeric: tabular-nums;
  background: linear-gradient(100deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  line-height: 1;
  margin-bottom: 14px;
}
.step h4 { font-size: 17px; font-weight: 800; margin-bottom: 8px; }
.step p { font-size: 14px; color: var(--muted); }
.oem-note { margin-top: 34px; text-align: center; font-size: 13px; color: var(--muted); }
.oem-note a { color: var(--accent); font-weight: 700; }

/* ---------- 关于我们 ---------- */
.about-text { font-size: 16px; color: #c3c8d2; }
.about-text p { margin-bottom: 18px; }
.about-cta {
  margin-top: 30px;
  font-size: 19px;
  font-weight: 800;
  color: var(--text);
  border-left: 3px solid var(--accent);
  padding-left: 18px;
}

/* ---------- 联系我们 ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.25fr;
  gap: 30px;
  align-items: start;
}
.contact-info {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.ci-item {
  display: flex;
  gap: 16px;
  align-items: center;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px 20px;
}
.ci-icon {
  flex: none;
  width: 44px; height: 44px;
  display: grid; place-items: center;
  border-radius: 11px;
  font-weight: 900;
  font-size: 16px;
  color: var(--accent-2);
  background: var(--accent-soft);
  border: 1px solid rgba(255, 90, 31, 0.35);
}
.ci-label { font-size: 12px; color: var(--muted); letter-spacing: 0.06em; }
.ci-item a { font-size: 15px; font-weight: 700; color: var(--text); }
.ci-item a:hover { color: var(--accent); }
.ci-placeholder { font-size: 14px; color: #6d7480; }

.contact-form {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 30px;
  display: flex;
  flex-direction: column;
  gap: 18px;
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.contact-form label {
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-size: 13px;
  font-weight: 700;
  color: #cdd2da;
}
.contact-form input,
.contact-form select,
.contact-form textarea {
  font: inherit;
  font-size: 14px;
  color: var(--text);
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 12px 14px;
  outline: none;
  transition: border-color 0.18s ease, box-shadow 0.18s ease;
}
.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(255, 90, 31, 0.16);
}
.contact-form textarea { resize: vertical; min-height: 96px; }
.form-toast {
  display: none;
  font-size: 13px;
  color: #9ee6b0;
  background: rgba(46, 160, 92, 0.12);
  border: 1px solid rgba(46, 160, 92, 0.4);
  border-radius: 10px;
  padding: 10px 14px;
}
.form-toast.show { display: block; }

/* ---------- 页脚 ---------- */
.footer { background: #07080a; border-top: 1px solid var(--line); }
.footer-inner {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 36px;
  padding: 52px 24px 40px;
}
.footer-brand p { margin-top: 14px; font-size: 14px; color: var(--muted); }
.footer-nav { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px 24px; }
.footer-nav a { font-size: 14px; color: var(--muted); transition: color 0.16s ease; }
.footer-nav a:hover { color: var(--accent); }
.footer-contact { font-size: 14px; color: var(--muted); display: flex; flex-direction: column; gap: 8px; }
.footer-contact a { color: #cdd2da; }
.footer-contact a:hover { color: var(--accent); }
.footer-bottom { border-top: 1px solid var(--line); }
.footer-bottom .container {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
  padding: 18px 24px;
  font-size: 13px;
  color: #6d7480;
}
.footer-icp { color: #565d68; }

/* ---------- 返回顶部 ---------- */
.back-top {
  position: fixed;
  right: 26px; bottom: 26px;
  z-index: 90;
  width: 46px; height: 46px;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: rgba(21, 23, 28, 0.9);
  color: var(--accent);
  font-size: 18px;
  cursor: pointer;
  opacity: 0;
  transform: translateY(12px);
  pointer-events: none;
  transition: opacity 0.22s ease, transform 0.22s ease;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}
.back-top.show { opacity: 1; transform: translateY(0); pointer-events: auto; }
.back-top:hover { border-color: var(--accent); }

/* ---------- 入场动画 ---------- */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity 0.6s ease, transform 0.6s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .hero-scroll span { animation: none; }
}

/* ---------- 响应式 ---------- */
@media (max-width: 1024px) {
  .tech-split { grid-template-columns: 1fr; }
  .why-grid { grid-template-columns: repeat(2, 1fr); }
  .oem-steps { grid-template-columns: repeat(2, 1fr); }
  .contact-grid { grid-template-columns: 1fr; }
  .hero-stats { grid-template-columns: repeat(2, 1fr); }
  .footer-inner { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .menu {
    position: absolute;
    top: calc(100% + 6px);
    left: 12px; right: 12px;
    flex-direction: column;
    gap: 4px;
    padding: 14px;
    background: rgba(16, 18, 22, 0.98);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    display: none;
  }
  .menu.open { display: flex; }
  .menu a { padding: 11px 14px; border-radius: 10px; font-size: 16px; }
  .menu a:hover { background: var(--panel-2); }
  .menu a::after { display: none; }
  .nav-toggle { display: flex; }
  .nav-actions .btn { display: none; }
  .section { padding: 72px 0; }
  .material-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .hero { padding-top: 110px; }
}

@media (max-width: 560px) {
  .why-grid { grid-template-columns: 1fr; }
  .oem-steps { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr; }
  .products-grid { grid-template-columns: 1fr; }
  .hero-stats { grid-template-columns: repeat(2, 1fr); gap: 10px; }
  .stat { padding: 14px 14px; }
  .stat-num { font-size: 24px; }
  .tech-badge { padding: 10px 16px; }
  .tb-num { font-size: 34px; }
}

/* ============================================================
   第二轮新增：车架平台 / 实测视频 / 实拍图库
   ============================================================ */

.tech-actions { display: flex; gap: 14px; flex-wrap: wrap; margin-top: 16px; }

/* ---------- 车架平台 ---------- */
.platform-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.pf-card {
  position: relative;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 34px 28px;
  overflow: hidden;
  transition: transform 0.2s ease, border-color 0.2s ease;
}
.pf-card:hover { transform: translateY(-4px); border-color: rgba(255, 90, 31, 0.5); }
.pf-card::before {
  content: "";
  position: absolute;
  right: -34px; top: -34px;
  width: 120px; height: 120px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 90, 31, 0.16), transparent 70%);
}
.pf-name {
  font-size: 34px;
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: 0.02em;
}
.pf-sub {
  margin-top: 6px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.26em;
  color: var(--accent);
}
.pf-card p { margin-top: 14px; font-size: 14px; color: var(--muted); }
.platform-note {
  margin-top: 26px;
  text-align: center;
  font-size: 14px;
  color: var(--muted);
  background: var(--accent-soft);
  border: 1px solid rgba(255, 90, 31, 0.32);
  border-radius: 12px;
  padding: 14px 18px;
}
.platform-note strong { color: var(--accent-2); }

/* ---------- 实测视频 ---------- */
.video-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.v-card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform 0.2s ease, border-color 0.2s ease;
}
.v-card:hover { transform: translateY(-4px); border-color: rgba(255, 90, 31, 0.5); }
.v-card video {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: contain;
  background: #050506;
  display: block;
}
.v-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 16px;
  font-size: 13px;
  color: var(--muted);
}
.v-tag { color: var(--accent); font-weight: 700; }

/* ---------- 实拍图库 ---------- */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
}
.g-item {
  position: relative;
  display: block;
  aspect-ratio: 1 / 1;
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid var(--line);
  background: #0d0f12;
}
.g-item img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease, filter 0.4s ease;
}
.g-item:hover img { transform: scale(1.07); filter: brightness(1.08); }
.g-item::after {
  content: "⤢";
  position: absolute;
  right: 10px; top: 6px;
  font-size: 16px;
  color: #fff;
  opacity: 0;
  transition: opacity 0.2s ease;
  text-shadow: 0 1px 5px rgba(0, 0, 0, 0.65);
}
.g-item:hover::after { opacity: 0.92; }

@media (max-width: 1024px) {
  .platform-grid { grid-template-columns: 1fr; }
  .video-grid { grid-template-columns: repeat(2, 1fr); }
  .gallery-grid { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 768px) {
  .gallery-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 560px) {
  .video-grid { grid-template-columns: 1fr; }
}

/* 询价表单：隐藏蜜罐字段（防垃圾提交） */
.hp-field {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
  opacity: 0;
}