/* ============================================================
   豪驰化工 - 化工原料收购网站模板
   ============================================================ */

:root {
  --primary: #0b6e4f;
  --primary-dark: #085a41;
  --primary-light: #e6f4ef;
  --accent: #f5a623;
  --accent-dark: #d98e10;
  --dark: #1b2a2e;
  --body: #4a5a60;
  --muted: #8a9aa2;
  --bg: #ffffff;
  --bg-alt: #f5f8f7;
  --border: #e3ebe8;
  --danger: #d64545;
  --radius: 10px;
  --shadow: 0 6px 24px rgba(15, 50, 40, 0.08);
  --shadow-lg: 0 14px 40px rgba(15, 50, 40, 0.14);
  --font: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  color: var(--body);
  background: var(--bg);
  line-height: 1.7;
  font-size: 15px;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; transition: color .2s; }
ul { list-style: none; }

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.hl { color: var(--accent); }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 26px;
  border-radius: 50px;
  font-size: 15px;
  font-weight: 600;
  border: 2px solid transparent;
  cursor: pointer;
  transition: all .25s ease;
  white-space: nowrap;
}
.btn-primary {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}
.btn-primary:hover {
  background: var(--accent-dark);
  border-color: var(--accent-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(245, 166, 35, .35);
}
.btn-outline {
  background: transparent;
  color: #fff;
  border-color: rgba(255,255,255,.6);
}
.btn-outline:hover {
  background: #fff;
  color: var(--primary);
  border-color: #fff;
}
.btn-lg { padding: 15px 34px; font-size: 16px; }
.btn-block { width: 100%; }

/* ---------- 顶部信息条 ---------- */
.topbar {
  background: var(--dark);
  color: #c6d4d0;
  font-size: 13px;
}
.topbar-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 38px;
}
.topbar-links a { color: #fff; font-weight: 600; }
.topbar-links a:hover { color: var(--accent); }
.topbar .sep { margin: 0 10px; opacity: .4; }

/* ---------- 导航 ---------- */
.header {
  background: #fff;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 12px rgba(0,0,0,.06);
  transition: box-shadow .2s;
}
.header-inner {
  display: flex;
  align-items: center;
  height: 72px;
  gap: 20px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.logo-icon {
  width: 42px;
  height: 42px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--primary), #14a37a);
  color: #fff;
  font-weight: 800;
  font-size: 22px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.logo-text {
  font-size: 20px;
  font-weight: 800;
  color: var(--dark);
  line-height: 1.15;
}
.logo-text small {
  display: block;
  font-size: 11px;
  font-weight: 500;
  color: var(--muted);
  letter-spacing: 2px;
}
.nav {
  display: flex;
  gap: 4px;
  margin-left: auto;
}
.nav-link {
  padding: 8px 13px;
  font-size: 15px;
  font-weight: 600;
  color: var(--dark);
  border-radius: 6px;
  transition: .2s;
}
.nav-link:hover { color: var(--primary); background: var(--primary-light); }
.nav-link.active { color: var(--primary); background: var(--primary-light); }

.header-phone {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  line-height: 1.2;
  padding-left: 20px;
  border-left: 1px solid var(--border);
  flex-shrink: 0;
}
.phone-label { font-size: 11px; color: var(--muted); }
.phone-number { font-size: 18px; font-weight: 800; color: var(--primary); }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: 0;
  cursor: pointer;
  padding: 6px;
}
.nav-toggle span {
  width: 24px;
  height: 2.5px;
  background: var(--dark);
  border-radius: 2px;
  transition: .25s;
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  color: #fff;
  padding: 90px 0 80px;
  overflow: hidden;
}
.hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 20% 30%, rgba(20,163,122,.55), transparent 55%),
    radial-gradient(ellipse at 85% 20%, rgba(245,166,35,.28), transparent 50%),
    linear-gradient(135deg, #062e24 0%, #0b4d3c 45%, #085a41 100%);
}
.hero-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.04) 1px, transparent 1px);
  background-size: 44px 44px;
}
.hero-content { position: relative; z-index: 1; }

.hero-badge {
  display: inline-block;
  background: rgba(255,255,255,.14);
  border: 1px solid rgba(255,255,255,.28);
  padding: 7px 18px;
  border-radius: 50px;
  font-size: 13px;
  letter-spacing: 1px;
  margin-bottom: 22px;
  backdrop-filter: blur(4px);
}
.hero-title {
  font-size: clamp(30px, 5vw, 52px);
  line-height: 1.28;
  font-weight: 800;
  margin-bottom: 20px;
}
.hero-desc {
  font-size: 17px;
  color: rgba(255,255,255,.85);
  max-width: 680px;
  margin-bottom: 32px;
}
.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 54px;
}
.hero-stats {
  display: flex;
  gap: 54px;
  flex-wrap: wrap;
  padding-top: 30px;
  border-top: 1px solid rgba(255,255,255,.18);
}
.stat strong {
  display: block;
  font-size: 32px;
  font-weight: 800;
  color: var(--accent);
  line-height: 1.2;
}
.stat span { font-size: 14px; color: rgba(255,255,255,.75); }

/* ---------- 信任条 ---------- */
.trust-bar {
  background: #fff;
  border-bottom: 1px solid var(--border);
}
.trust-inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 14px;
  padding: 20px 20px;
}
.trust-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
  color: var(--dark);
  font-size: 15px;
}
.trust-ico {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--primary);
  color: #fff;
  font-size: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

/* ---------- 通用 Section ---------- */
.section { padding: 84px 0; }
.section-alt { background: var(--bg-alt); }
.section-dark {
  background: linear-gradient(135deg, #0d3a30, #085a41 60%, #0b6e4f);
  color: #fff;
}
.section-dark .section-sub { color: rgba(255,255,255,.78); }

.section-head {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 50px;
}
.section-tag {
  display: inline-block;
  background: var(--primary-light);
  color: var(--primary);
  font-size: 13px;
  font-weight: 700;
  padding: 5px 16px;
  border-radius: 50px;
  letter-spacing: 1px;
  margin-bottom: 14px;
}
.section-tag-light {
  background: rgba(255,255,255,.16);
  color: var(--accent);
}
.section-title {
  font-size: clamp(24px, 3.4vw, 34px);
  font-weight: 800;
  color: var(--dark);
  line-height: 1.35;
  margin-bottom: 14px;
}
.section-dark .section-title { color: #fff; }
.section-sub { font-size: 16px; color: var(--body); }

/* ---------- 关于我们 ---------- */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}
.about-text h3 {
  font-size: 26px;
  color: var(--dark);
  margin-bottom: 18px;
  font-weight: 800;
}
.about-text p { margin-bottom: 14px; }
.about-text strong { color: var(--primary); }
.check-list { margin: 20px 0 28px; }
.check-list li {
  position: relative;
  padding-left: 30px;
  margin-bottom: 11px;
  color: var(--dark);
  font-weight: 500;
}
.check-list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  top: 2px;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--primary);
  color: #fff;
  font-size: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.about-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}
.about-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px 22px;
  transition: .25s;
}
.about-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}
.about-card-num {
  font-size: 30px;
  font-weight: 800;
  color: var(--primary-light);
  line-height: 1;
  margin-bottom: 10px;
}
.about-card h4 { color: var(--dark); font-size: 17px; margin-bottom: 8px; }
.about-card p { font-size: 14px; color: var(--muted); }

/* ---------- 收购范围 ---------- */
.services-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.service-card {
  background: #fff;
  border-radius: var(--radius);
  padding: 30px 24px;
  border: 1px solid var(--border);
  transition: .25s;
  position: relative;
  overflow: hidden;
}
.service-card::before {
  content: "";
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 4px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .3s;
}
.service-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.service-card:hover::before { transform: scaleX(1); }
.service-ico {
  font-size: 36px;
  margin-bottom: 16px;
  line-height: 1;
}
.service-card h3 {
  font-size: 17px;
  color: var(--dark);
  margin-bottom: 10px;
  font-weight: 700;
}
.service-card p { font-size: 14px; color: var(--muted); }

/* ---------- 回收品类 Tab ---------- */
.tabs {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  margin-bottom: 30px;
}
.tab {
  padding: 11px 24px;
  border-radius: 50px;
  border: 1.5px solid var(--border);
  background: #fff;
  font-size: 15px;
  font-weight: 600;
  color: var(--body);
  cursor: pointer;
  transition: .2s;
  font-family: var(--font);
}
.tab:hover { border-color: var(--primary); color: var(--primary); }
.tab.active {
  background: var(--primary);
  border-color: var(--primary);
  color: #fff;
  box-shadow: 0 6px 16px rgba(11,110,79,.28);
}

.tab-panel { display: none; }
.tab-panel.active { display: block; animation: fadeUp .35s ease; }

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.product-table-wrap {
  overflow-x: auto;
  background: #fff;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}
.product-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 640px;
}
.product-table th {
  background: var(--primary);
  color: #fff;
  text-align: left;
  padding: 15px 22px;
  font-size: 14px;
  font-weight: 600;
}
.product-table td {
  padding: 14px 22px;
  border-bottom: 1px solid var(--border);
  font-size: 14.5px;
}
.product-table tbody tr:hover { background: var(--primary-light); }
.product-table tbody tr:last-child td { border-bottom: 0; }
.product-table td:first-child { font-weight: 700; color: var(--dark); }
.price { color: var(--accent-dark); font-weight: 700; }

.product-note {
  margin-top: 20px;
  background: #fff8e8;
  border: 1px dashed var(--accent);
  color: #9a6b12;
  padding: 14px 20px;
  border-radius: 8px;
  font-size: 14px;
}

/* ---------- 回收流程 ---------- */
.process-grid {
  display: flex;
  align-items: stretch;
  justify-content: center;
  gap: 8px;
}
.process-step {
  flex: 1;
  background: rgba(255,255,255,.09);
  border: 1px solid rgba(255,255,255,.16);
  border-radius: var(--radius);
  padding: 28px 18px;
  text-align: center;
  backdrop-filter: blur(4px);
  transition: .25s;
}
.process-step:hover {
  background: rgba(255,255,255,.16);
  transform: translateY(-5px);
}
.process-num {
  width: 44px;
  height: 44px;
  margin: 0 auto 14px;
  border-radius: 50%;
  background: var(--accent);
  color: #fff;
  font-weight: 800;
  font-size: 19px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.process-step h3 { font-size: 16.5px; margin-bottom: 9px; color: #fff; }
.process-step p { font-size: 13.5px; color: rgba(255,255,255,.75); }
.process-arrow {
  display: flex;
  align-items: center;
  color: rgba(255,255,255,.45);
  font-size: 22px;
  flex-shrink: 0;
}

/* ---------- 优势 ---------- */
.adv-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}
.adv-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 26px;
  text-align: center;
  transition: .25s;
}
.adv-card:hover {
  border-color: transparent;
  box-shadow: var(--shadow-lg);
  transform: translateY(-5px);
}
.adv-ico {
  font-size: 40px;
  margin-bottom: 16px;
  line-height: 1;
}
.adv-card h3 { color: var(--dark); font-size: 18px; margin-bottom: 10px; }
.adv-card p { font-size: 14px; color: var(--muted); }

/* ---------- 案例 ---------- */
.cases-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
  margin-bottom: 40px;
}
.case-card {
  background: #fff;
  border-radius: var(--radius);
  padding: 28px 26px;
  border: 1px solid var(--border);
  transition: .25s;
}
.case-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-5px); }
.case-tag {
  display: inline-block;
  background: var(--primary-light);
  color: var(--primary);
  font-size: 12px;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: 50px;
  margin-bottom: 14px;
}
.case-card h3 { color: var(--dark); font-size: 17px; margin-bottom: 10px; line-height: 1.5; }
.case-card p { font-size: 14px; color: var(--muted); margin-bottom: 16px; }
.case-meta {
  display: flex;
  gap: 18px;
  font-size: 13px;
  color: var(--primary);
  font-weight: 700;
  padding-top: 14px;
  border-top: 1px dashed var(--border);
}

.testimonials {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}
.testimonial {
  background: #fff;
  border-radius: var(--radius);
  padding: 26px;
  border-left: 4px solid var(--accent);
  box-shadow: var(--shadow);
}
.testimonial p {
  font-size: 14.5px;
  color: var(--dark);
  font-style: italic;
  margin-bottom: 14px;
}
.testimonial-author { font-size: 13px; color: var(--muted); font-weight: 600; }

/* ---------- 联系 ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 40px;
}
.contact-info {
  background: linear-gradient(150deg, #0d3a30, #0b6e4f);
  color: #fff;
  border-radius: var(--radius);
  padding: 36px 32px;
  display: flex;
  flex-direction: column;
  gap: 22px;
}
.contact-label {
  display: block;
  font-size: 12px;
  color: rgba(255,255,255,.6);
  letter-spacing: 1px;
  margin-bottom: 4px;
}
.contact-value { font-size: 16px; font-weight: 600; color: #fff; }
.contact-value.big { font-size: 30px; font-weight: 800; color: var(--accent); }
a.contact-value:hover { color: var(--accent); }
.contact-tip { font-size: 13px; color: rgba(255,255,255,.65); }
.contact-qual {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding-top: 18px;
  border-top: 1px solid rgba(255,255,255,.18);
}
.contact-qual span {
  font-size: 12px;
  background: rgba(255,255,255,.12);
  border: 1px solid rgba(255,255,255,.22);
  padding: 5px 12px;
  border-radius: 50px;
}

.contact-form {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 34px 32px;
  box-shadow: var(--shadow);
}
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}
.form-group { margin-bottom: 18px; }
.form-group label {
  display: block;
  font-size: 14px;
  font-weight: 600;
  color: var(--dark);
  margin-bottom: 7px;
}
.form-group label em { color: var(--danger); font-style: normal; }
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px 15px;
  border: 1.5px solid var(--border);
  border-radius: 8px;
  font-size: 15px;
  font-family: var(--font);
  color: var(--dark);
  background: #fafcfb;
  transition: .2s;
  outline: none;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--primary);
  background: #fff;
  box-shadow: 0 0 0 3px rgba(11,110,79,.12);
}
.form-group input.error,
.form-group textarea.error { border-color: var(--danger); }
.form-group textarea { resize: vertical; }
.form-privacy {
  font-size: 13px;
  color: var(--muted);
  text-align: center;
  margin-top: 14px;
}
.form-success {
  display: none;
  margin-top: 16px;
  background: var(--primary-light);
  border: 1px solid var(--primary);
  color: var(--primary);
  padding: 14px 18px;
  border-radius: 8px;
  font-weight: 600;
  text-align: center;
}
.form-success.show { display: block; animation: fadeUp .3s ease; }

.form-error {
  display: none;
  margin-top: 16px;
  background: #fdecec;
  border: 1px solid var(--danger);
  color: var(--danger);
  padding: 14px 18px;
  border-radius: 8px;
  font-weight: 600;
  text-align: center;
}
.form-error.show { display: block; animation: fadeUp .3s ease; }

.btn-primary:disabled {
  opacity: .65;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

/* ---------- 浮动条 ---------- */
.float-bar {
  position: fixed;
  right: 18px;
  bottom: 90px;
  z-index: 90;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.float-btn {
  padding: 12px 18px;
  border-radius: 50px;
  font-size: 14px;
  font-weight: 700;
  color: #fff;
  box-shadow: var(--shadow-lg);
  transition: .2s;
  text-align: center;
}
.float-phone { background: var(--primary); }
.float-consult { background: var(--accent); }
.float-btn:hover { transform: translateX(-4px); filter: brightness(1.06); }

/* ---------- 页脚 ---------- */
.footer {
  background: #10231f;
  color: #a8bbb5;
  padding-top: 58px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1fr;
  gap: 36px;
  padding-bottom: 42px;
}
.footer-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  color: #fff;
  font-size: 20px;
  font-weight: 800;
  margin-bottom: 16px;
}
.footer-logo .logo-icon {
  width: 38px;
  height: 38px;
  font-size: 19px;
}
.footer-col p { font-size: 14px; line-height: 1.8; margin-bottom: 16px; }
.footer-contact div { font-size: 14px; margin-bottom: 7px; }
.footer-col h4 {
  color: #fff;
  font-size: 16px;
  margin-bottom: 18px;
  position: relative;
  padding-bottom: 10px;
}
.footer-col h4::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 34px;
  height: 3px;
  background: var(--accent);
  border-radius: 2px;
}
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul a { font-size: 14px; color: #a8bbb5; }
.footer-col ul a:hover { color: var(--accent); padding-left: 4px; }

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.1);
  padding: 20px 0;
}
.footer-bottom-inner {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 13px;
  color: #7d938c;
}

/* ---------- 响应式 ---------- */
@media (max-width: 1080px) {
  .nav { gap: 0; }
  .nav-link { padding: 8px 9px; font-size: 14px; }
  .header-phone { display: none; }
  .services-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 900px) {
  .nav {
    position: fixed;
    top: 0;
    right: -280px;
    width: 260px;
    height: 100vh;
    background: #fff;
    flex-direction: column;
    padding: 90px 22px 22px;
    box-shadow: -8px 0 30px rgba(0,0,0,.15);
    transition: right .3s ease;
    gap: 4px;
    z-index: 200;
  }
  .nav.open { right: 0; }
  .nav-link { padding: 13px 16px; font-size: 16px; border-radius: 8px; }
  .nav-toggle { display: flex; margin-left: auto; z-index: 210; }

  .about-grid,
  .contact-grid { grid-template-columns: 1fr; }
  .adv-grid,
  .cases-grid,
  .testimonials { grid-template-columns: 1fr 1fr; }
  .process-grid { flex-wrap: wrap; }
  .process-step { flex: 1 1 40%; }
  .process-arrow { display: none; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .hero-stats { gap: 30px; }
}

@media (max-width: 640px) {
  .topbar-inner { justify-content: center; font-size: 12px; }
  .topbar-inner > span:first-child { display: none; }
  .section { padding: 56px 0; }
  .hero { padding: 60px 0 54px; }
  .hero-stats { gap: 20px 28px; }
  .stat strong { font-size: 26px; }
  .services-grid,
  .adv-grid,
  .cases-grid,
  .testimonials,
  .about-cards,
  .form-row,
  .footer-grid { grid-template-columns: 1fr; }
  .trust-inner { justify-content: center; }
  .trust-item { font-size: 13.5px; }
  .process-step { flex: 1 1 100%; }
  .contact-info, .contact-form { padding: 26px 20px; }
  .float-bar { right: 12px; bottom: 16px; }
  .float-btn { padding: 11px 15px; font-size: 13px; }
  .hero-actions .btn { width: 100%; }
  .footer-bottom-inner { justify-content: center; text-align: center; }
}