/* ===== 贷鱼科技 - 跨境电商官网 ===== */
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
body {
  font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  font-size: 14px; color: #333; background: #fff;
}
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
img { display: block; }
.container { width: 1200px; max-width: 100%; margin: 0 auto; padding: 0 20px; }

/* ===== Header ===== */
.header {
  height: 72px; background: rgba(255,255,255,.95);
  backdrop-filter: blur(12px);
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  border-bottom: 1px solid rgba(0,0,0,.06);
  transition: box-shadow .3s;
}
.header.scrolled { box-shadow: 0 2px 20px rgba(0,0,0,.08); }
.header .container {
  height: 72px; display: flex; align-items: center;
}
.logo { display: flex; align-items: center; gap: 10px; }
.logo img { width: 36px; height: 36px; }
.logo-text .cn {
  display: block; font-size: 16px; font-weight: bold;
  color: #1a1a2e; line-height: 1.25; letter-spacing: 1px;
}
.logo-text .en { display: block; font-size: 10px; color: #666; opacity: .7; line-height: 1.2; }
.nav { display: flex; align-items: center; gap: 36px; margin-left: 60px; }
.nav a {
  display: block; font-size: 14px; color: #555; line-height: 72px;
  position: relative; transition: color .2s; font-weight: 500;
}
.nav a:hover, .nav a.active { color: #2563eb; }
.nav a.active::after {
  content: ""; position: absolute; left: 50%; transform: translateX(-50%);
  bottom: 16px; width: 20px; height: 2px; background: #2563eb; border-radius: 1px;
}
.header-right { margin-left: auto; display: flex; align-items: center; gap: 14px; }
.btn-consult {
  display: inline-flex; align-items: center; justify-content: center;
  height: 38px; padding: 0 24px;
  background: linear-gradient(135deg, #2563eb, #7c3aed);
  color: #fff; font-size: 14px; font-weight: 500;
  border-radius: 8px; cursor: pointer;
  transition: transform .2s, box-shadow .2s;
}
.btn-consult:hover { transform: translateY(-1px); box-shadow: 0 4px 14px rgba(37,99,235,.35); }

/* ===== Hero ===== */
.hero {
  position: relative; min-height: 100vh; display: flex; align-items: center;
  overflow: hidden; padding-top: 72px;
}
.hero-bg {
  position: absolute; inset: 0;
  background: linear-gradient(135deg, #f0f4ff 0%, #e8eeff 30%, #f5f0ff 60%, #fff5f5 100%);
}
.hero-bg::before {
  content: ""; position: absolute; right: -10%; top: -20%;
  width: 700px; height: 700px; border-radius: 50%;
  background: radial-gradient(circle, rgba(37,99,235,.08) 0%, transparent 70%);
}
.hero-bg::after {
  content: ""; position: absolute; left: -5%; bottom: -10%;
  width: 500px; height: 500px; border-radius: 50%;
  background: radial-gradient(circle, rgba(124,58,237,.06) 0%, transparent 70%);
}
.hero-content { position: relative; z-index: 2; padding: 80px 0 60px; }
.hero-badge {
  display: inline-block; padding: 6px 20px;
  background: rgba(37,99,235,.08); color: #2563eb;
  font-size: 13px; font-weight: 600; border-radius: 20px;
  margin-bottom: 28px; letter-spacing: 1px;
}
.hero h1 {
  font-size: 52px; font-weight: 700; line-height: 1.3;
  color: #1a1a2e; margin-bottom: 24px; letter-spacing: 1px;
}
.hero h1 .highlight {
  background: linear-gradient(135deg, #2563eb, #7c3aed);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-desc {
  font-size: 16px; color: #666; line-height: 1.8; margin-bottom: 40px; max-width: 640px;
}
.hero-btns { display: flex; gap: 16px; margin-bottom: 60px; }
.btn-primary {
  display: inline-flex; align-items: center; justify-content: center;
  height: 48px; padding: 0 36px;
  background: linear-gradient(135deg, #2563eb, #7c3aed);
  color: #fff; font-size: 16px; font-weight: 600;
  border-radius: 10px; cursor: pointer;
  transition: transform .2s, box-shadow .2s;
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(37,99,235,.35); }
.btn-outline {
  display: inline-flex; align-items: center; justify-content: center;
  height: 48px; padding: 0 36px;
  background: #fff; color: #2563eb; font-size: 16px; font-weight: 600;
  border: 2px solid #2563eb; border-radius: 10px; cursor: pointer;
  transition: all .2s;
}
.btn-outline:hover { background: #2563eb; color: #fff; }
.hero-stats {
  display: flex; align-items: center; gap: 48px;
  padding: 36px 48px; background: #fff;
  border-radius: 16px; box-shadow: 0 8px 32px rgba(0,0,0,.06);
  max-width: 620px;
}
.stat { text-align: center; }
.stat .num { font-size: 40px; font-weight: 700; color: #2563eb; }
.stat .unit { font-size: 24px; font-weight: 600; color: #7c3aed; }
.stat p { font-size: 13px; color: #888; margin-top: 4px; }
.stat-divider { width: 1px; height: 48px; background: #e5e7eb; }

/* ===== Section Head ===== */
.sec-head { position: relative; text-align: center; padding: 0 0 16px; margin-bottom: 48px; }
.sec-head .wm {
  font-size: 72px; font-weight: 800; letter-spacing: 4px;
  color: rgba(0,0,0,.025); white-space: nowrap; overflow: hidden;
  text-transform: uppercase; pointer-events: none; user-select: none;
  line-height: 1;
}
.sec-head .t {
  position: relative; font-size: 32px; font-weight: 700; color: #1a1a2e;
  margin-top: -36px;
}
.sec-head .sub { font-size: 15px; color: #888; margin-top: 12px; }
.sec-head-left { text-align: left; }
.sec-head-left .wm { text-align: left; }
.sec-head-light .t { color: #fff; }
.sec-head-light .sub { color: rgba(255,255,255,.7); }
.sec-head-light .wm { color: rgba(255,255,255,.05); }

/* ===== Services ===== */
.services { padding: 100px 0; background: #fff; }
.service-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px;
}
.service-card {
  background: #fff; border: 1px solid #f0f0f0;
  border-radius: 16px; padding: 36px 30px 30px;
  transition: all .3s;
}
.service-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 16px 40px rgba(0,0,0,.08);
  border-color: transparent;
}
.service-icon {
  width: 56px; height: 56px; border-radius: 14px;
  background: rgba(37,99,235,.08); color: #2563eb;
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 24px;
}
.service-icon svg { width: 28px; height: 28px; }
.service-icon.icon-orange { background: rgba(234,88,12,.08); color: #ea580c; }
.service-icon.icon-green { background: rgba(22,163,74,.08); color: #16a34a; }
.service-icon.icon-purple { background: rgba(124,58,237,.08); color: #7c3aed; }
.service-icon.icon-cyan { background: rgba(6,182,212,.08); color: #06b6d4; }
.service-icon.icon-red { background: rgba(220,38,38,.08); color: #dc2626; }
.service-card h3 { font-size: 18px; font-weight: 600; color: #1a1a2e; margin-bottom: 12px; }
.service-card p { font-size: 14px; color: #777; line-height: 1.8; margin-bottom: 20px; }
.service-tags { display: flex; flex-wrap: wrap; gap: 8px; }
.service-tags span {
  display: inline-block; padding: 4px 12px;
  background: #f5f7fa; color: #555; font-size: 12px;
  border-radius: 6px;
}

/* ===== Advantages ===== */
.advantages {
  padding: 100px 0;
  background: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
}
.adv-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 32px; }
.adv-item {
  background: rgba(255,255,255,.05);
  border: 1px solid rgba(255,255,255,.08);
  border-radius: 16px; padding: 40px 36px;
  transition: all .3s;
}
.adv-item:hover {
  background: rgba(255,255,255,.08);
  border-color: rgba(37,99,235,.3);
  transform: translateY(-4px);
}
.adv-num {
  font-size: 48px; font-weight: 800;
  background: linear-gradient(135deg, #2563eb, #7c3aed);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text; margin-bottom: 16px; line-height: 1;
}
.adv-item h3 { font-size: 20px; font-weight: 600; color: #fff; margin-bottom: 12px; }
.adv-item p { font-size: 14px; color: rgba(255,255,255,.6); line-height: 1.8; }

/* ===== Cases / Platforms ===== */
.cases-sec { padding: 100px 0; background: #f8fafc; }
.platform-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.platform-card {
  background: #fff; border-radius: 16px; padding: 32px 24px;
  border: 1px solid #f0f0f0;
  transition: all .3s;
}
.platform-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 16px 40px rgba(0,0,0,.08);
}
.platform-logo {
  display: inline-flex; align-items: center; justify-content: center;
  height: 40px; padding: 0 20px;
  background: #ff9900; color: #fff; font-size: 16px; font-weight: 700;
  border-radius: 8px; margin-bottom: 20px; letter-spacing: 1px;
}
.platform-logo.shopee { background: #ee4d2d; }
.platform-logo.tiktok { background: #1a1a2e; }
.platform-logo.independent { background: linear-gradient(135deg, #2563eb, #7c3aed); }
.platform-card h3 { font-size: 16px; font-weight: 600; color: #1a1a2e; margin-bottom: 10px; }
.platform-card p { font-size: 13px; color: #777; line-height: 1.8; margin-bottom: 16px; min-height: 64px; }
.platform-result {
  display: flex; align-items: center; gap: 6px;
  font-size: 14px; font-weight: 600; color: #16a34a;
  padding-top: 16px; border-top: 1px solid #f0f0f0;
}
.up-arrow { font-size: 10px; }

/* ===== About ===== */
.about-sec { padding: 100px 0; background: #fff; }
.about-layout { display: flex; gap: 80px; align-items: center; }
.about-left { flex: 1; }
.about-left .sec-head { margin-bottom: 32px; }
.about-text { font-size: 15px; color: #666; line-height: 2; margin-bottom: 16px; }
.about-values { display: flex; gap: 40px; margin-top: 32px; }
.value-item { flex: 1; }
.value-item h4 {
  font-size: 16px; font-weight: 600; color: #2563eb; margin-bottom: 8px;
  padding-bottom: 8px; border-bottom: 2px solid #2563eb;
  display: inline-block;
}
.value-item p { font-size: 14px; color: #666; }
.about-right { flex-shrink: 0; }
.about-card-grid {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px;
  width: 380px;
}
.about-mini-card {
  background: #f8fafc; border-radius: 16px; padding: 32px 20px;
  text-align: center; border: 1px solid #f0f0f0;
  transition: all .3s;
}
.about-mini-card:hover { transform: translateY(-4px); box-shadow: 0 8px 24px rgba(0,0,0,.06); }
.mini-num {
  font-size: 40px; font-weight: 700; color: #2563eb; line-height: 1;
}
.mini-num span { font-size: 24px; color: #7c3aed; }
.about-mini-card p { font-size: 13px; color: #888; margin-top: 8px; }

/* ===== CTA ===== */
.cta-sec {
  padding: 80px 0; text-align: center;
  background: linear-gradient(135deg, #2563eb 0%, #7c3aed 100%);
}
.cta-sec h2 { font-size: 30px; font-weight: 700; color: #fff; margin-bottom: 16px; }
.cta-sec p { font-size: 15px; color: rgba(255,255,255,.8); margin-bottom: 36px; }
.btn-cta {
  display: inline-flex; align-items: center; justify-content: center;
  height: 52px; padding: 0 40px;
  background: #fff; color: #2563eb; font-size: 16px; font-weight: 600;
  border-radius: 10px; cursor: pointer;
  transition: all .2s;
}
.btn-cta:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(0,0,0,.2); }

/* ===== Contact ===== */
.contact-sec { padding: 100px 0; background: #f8fafc; }
.contact-layout { display: flex; gap: 60px; }
.contact-info { flex: 1; padding-top: 20px; }
.info-item {
  display: flex; gap: 20px; margin-bottom: 36px;
  align-items: flex-start;
}
.info-icon {
  width: 48px; height: 48px; border-radius: 12px;
  background: rgba(37,99,235,.08); color: #2563eb;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.info-icon svg { width: 22px; height: 22px; }
.info-item h4 { font-size: 15px; font-weight: 600; color: #1a1a2e; margin-bottom: 4px; }
.info-item p { font-size: 14px; color: #555; }
.info-item span { font-size: 12px; color: #999; }
.contact-form {
  flex: 1; background: #fff; border-radius: 16px;
  padding: 40px; box-shadow: 0 8px 32px rgba(0,0,0,.06);
}
.contact-form h3 { font-size: 20px; font-weight: 600; color: #1a1a2e; margin-bottom: 28px; }
.form-row { display: flex; gap: 16px; }
.form-row .form-field { flex: 1; }
.form-field { margin-bottom: 20px; }
.form-field label { display: block; font-size: 13px; color: #555; font-weight: 500; margin-bottom: 8px; }
.form-field input,
.form-field select,
.form-field textarea {
  width: 100%; border: 1px solid #e5e7eb;
  font-size: 14px; color: #333; padding: 10px 14px; outline: none;
  background: #f9fafb; border-radius: 8px;
  font-family: inherit; transition: border-color .2s;
}
.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus { border-color: #2563eb; background: #fff; }
.form-field input::placeholder,
.form-field textarea::placeholder { color: #bbb; }
.form-field select { appearance: none; cursor: pointer; }
.btn-submit {
  width: 100%; height: 46px; border: 0; border-radius: 10px;
  background: linear-gradient(135deg, #2563eb, #7c3aed);
  color: #fff; font-size: 15px; font-weight: 600;
  cursor: pointer; transition: all .2s; font-family: inherit;
}
.btn-submit:hover { transform: translateY(-1px); box-shadow: 0 6px 20px rgba(37,99,235,.35); }

/* ===== Footer ===== */
.footer { background: #1a1a2e; color: #98999b; padding-top: 64px; }
.footer .f-main { display: flex; gap: 60px; padding-bottom: 48px; }
.f-brand { flex: 1.5; }
.f-brand .f-logo { display: flex; align-items: center; gap: 10px; margin-bottom: 16px; }
.f-brand .f-logo img { width: 32px; height: 32px; }
.f-brand .logo-text .cn { color: #fff; }
.f-brand .logo-text .en { color: #888; }
.f-slogan { font-size: 14px; color: #888; }
.f-nav, .f-service, .f-contact-info { flex: 1; }
.footer h4 { font-size: 14px; color: #ddd; font-weight: 600; margin-bottom: 20px; }
.f-nav a, .f-service a {
  display: block; font-size: 13px; color: #888; margin-bottom: 12px;
  transition: color .2s;
}
.f-nav a:hover, .f-service a:hover { color: #fff; }
.f-contact-info p { font-size: 13px; color: #888; margin-bottom: 10px; }
.footer .f-bottom {
  border-top: 1px solid rgba(255,255,255,.06);
  display: flex; align-items: center; justify-content: center; gap: 24px;
  height: 56px; font-size: 13px; color: #666;
}

/* ===== Modal ===== */
.modal-mask {
  display: none; position: fixed; inset: 0; z-index: 200;
  background: rgba(0,10,25,.55); backdrop-filter: blur(4px);
}
.modal-mask.show { display: flex; align-items: center; justify-content: center; }
.modal {
  width: 340px; background: #fff; border-radius: 16px;
  box-shadow: 0 24px 64px rgba(0,0,0,.2); padding: 40px 32px;
  position: relative;
}
.modal .close-x {
  position: absolute; right: 16px; top: 12px; font-size: 22px; color: #999;
  cursor: pointer; line-height: 1; transition: color .2s;
}
.modal .close-x:hover { color: #333; }
.modal.success { text-align: center; }
.modal.success .ok-ic {
  width: 64px; height: 64px; margin: 0 auto 20px; border-radius: 50%;
  background: rgba(37,99,235,.08); color: #2563eb; font-size: 32px;
  display: flex; align-items: center; justify-content: center;
}
.modal.success p { color: #1a1a2e; font-size: 18px; font-weight: 600; margin-bottom: 8px; }
.modal.success .ok-sub { font-size: 13px; color: #888; }

/* ===== Hamburger ===== */
.hamburger {
  display: none; background: none; border: 0; cursor: pointer;
  width: 28px; height: 22px; flex-direction: column; justify-content: space-between;
  padding: 0; margin-left: auto;
}
.hamburger span {
  display: block; width: 100%; height: 2.5px; background: #333; border-radius: 2px;
  transition: transform .3s, opacity .3s;
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .platform-grid { grid-template-columns: repeat(2, 1fr); }
  .about-layout { flex-direction: column; gap: 48px; }
  .about-card-grid { width: 100%; }
}

@media (max-width: 768px) {
  .container { padding: 0 16px; }

  /* Header */
  .header { height: 56px; }
  .header .container { height: 56px; flex-wrap: wrap; }
  .logo img { width: 30px; height: 30px; }
  .logo-text .cn { font-size: 14px; }
  .hamburger { display: flex; }
  .nav {
    display: none; flex-direction: column; gap: 0;
    position: absolute; top: 56px; left: 0; right: 0;
    background: #fff; margin-left: 0; z-index: 60;
    box-shadow: 0 8px 24px rgba(0,0,0,.08);
  }
  .nav.open { display: flex; }
  .nav a { line-height: 48px; padding: 0 20px; border-bottom: 1px solid #f0f0f0; }
  .nav a.active::after { display: none; }
  .header-right { display: none; }

  /* Hero */
  .hero { min-height: auto; padding: 100px 0 60px; }
  .hero h1 { font-size: 30px; }
  .hero-desc { font-size: 14px; }
  .hero-desc br { display: none; }
  .hero-btns { flex-direction: column; width: fit-content; }
  .hero-stats { flex-direction: column; gap: 24px; padding: 28px 32px; max-width: 100%; }
  .stat-divider { width: 48px; height: 1px; }

  /* Sections */
  .services, .advantages, .cases-sec, .about-sec, .contact-sec { padding: 60px 0; }
  .sec-head .wm { font-size: 32px; }
  .sec-head .t { font-size: 24px; margin-top: -20px; }

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

  /* Advantages */
  .adv-grid { grid-template-columns: 1fr; }

  /* Cases */
  .platform-grid { grid-template-columns: 1fr; }

  /* About */
  .about-layout { flex-direction: column; gap: 40px; }
  .about-right { width: 100%; }
  .about-card-grid { width: 100%; }
  .about-values { flex-direction: column; gap: 20px; }

  /* CTA */
  .cta-sec { padding: 50px 0; }
  .cta-sec h2 { font-size: 22px; }

  /* Contact */
  .contact-layout { flex-direction: column; gap: 40px; }
  .form-row { flex-direction: column; gap: 0; }

  /* Footer */
  .footer .f-main { flex-direction: column; gap: 32px; }
  .footer .f-bottom { flex-direction: column; height: auto; padding: 16px; gap: 6px; }
}