/* =========================================
   重庆极牛科技 · GINIU 官网
   设计 tokens 来自 PPT 视觉规范
   ========================================= */

:root {
  --c-primary: #1864B8;
  --c-primary-light: #E8F0FA;
  --c-navy: #1C2A40;
  --c-text: #364860;
  --c-muted: #7A8A9E;
  --c-divider: #E0E7F1;
  --c-card-bg: #EFF3F8;
  --c-card-border: #D6DEE8;
  --c-bg: #FFFFFF;
  --c-section-bg: #F8FAFC;

  --maxw: 1280px;
  --pad-x: clamp(24px, 5vw, 80px);
  --nav-h: 72px;

  --font-cn: "PingFang SC", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans CJK SC", system-ui, sans-serif;
  --font-en: "Helvetica Neue", "Inter", -apple-system, BlinkMacSystemFont, sans-serif;
}

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

html { scroll-behavior: smooth; scroll-padding-top: var(--nav-h); }

body {
  font-family: var(--font-cn);
  color: var(--c-text);
  background: var(--c-bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }

/* ============================
   TOP NAVIGATION
   ============================ */
.topnav {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--nav-h);
  background: rgba(255,255,255,0.96);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--c-divider);
  z-index: 100;
}
.nav-inner {
  max-width: var(--maxw);
  height: 100%;
  margin: 0 auto;
  padding: 0 var(--pad-x);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.brand { display: flex; flex-direction: column; gap: 2px; }
.brand-name {
  font-family: var(--font-en);
  font-weight: 700;
  font-size: 22px;
  color: var(--c-primary);
  letter-spacing: 0.3em;
}
.brand-sub {
  font-size: 11px;
  color: var(--c-muted);
  letter-spacing: 0.1em;
}
.nav-links {
  display: flex;
  gap: clamp(20px, 3vw, 48px);
  align-items: center;
}
.nav-link {
  position: relative;
  font-size: 14px;
  color: var(--c-text);
  padding: 8px 4px;
  transition: color 0.2s;
}
.nav-link::after {
  content: "";
  position: absolute;
  left: 50%; bottom: 0;
  width: 0;
  height: 2px;
  background: var(--c-primary);
  transition: all 0.25s ease;
  transform: translateX(-50%);
}
.nav-link:hover,
.nav-link.active {
  color: var(--c-primary);
  font-weight: 600;
}
.nav-link.active::after { width: 24px; }

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 28px;
  height: 28px;
  padding: 0;
}
.nav-toggle span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--c-navy);
  transition: 0.3s;
}
.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ============================
   SECTIONS COMMON
   ============================ */
.section {
  padding: 100px var(--pad-x);
  scroll-margin-top: var(--nav-h);
}
.section-tight { padding-top: 60px; padding-bottom: 60px; }
.section-bg { background: var(--c-section-bg); }
.container {
  max-width: var(--maxw);
  margin: 0 auto;
}

.eyebrow {
  font-family: var(--font-en);
  font-size: 12px;
  font-weight: 700;
  color: var(--c-primary);
  letter-spacing: 0.4em;
  text-transform: uppercase;
  margin-bottom: 18px;
}
.section-head {
  text-align: center;
  margin-bottom: 64px;
}
.section-title {
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 700;
  color: var(--c-navy);
  line-height: 1.3;
}
.section-title.left { text-align: left; }
.section-sub {
  font-size: 14px;
  color: var(--c-muted);
  margin-top: 18px;
}
.section-lead {
  font-size: 18px;
  color: var(--c-primary);
  font-weight: 500;
  margin: 16px 0 24px;
}
.divider-blue {
  width: 40px;
  height: 2px;
  background: var(--c-primary);
  margin: 18px 0;
}
.divider-blue.center { margin-left: auto; margin-right: auto; }

.body-text {
  font-size: 15px;
  color: var(--c-text);
  line-height: 1.85;
  margin-bottom: 14px;
}
.body-text.light { color: var(--c-muted); font-size: 14px; }

.footnote {
  font-size: 12px;
  color: var(--c-muted);
  font-style: italic;
}
.footnote.center { text-align: center; margin-top: 20px; }

/* ============================
   HERO SECTION
   ============================ */
.section-hero {
  padding-top: calc(var(--nav-h) + 60px);
  min-height: 100vh;
  display: flex;
  align-items: center;
}
.hero-grid {
  max-width: var(--maxw);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}
.hero-text { padding-right: 20px; }
.hero-title {
  font-size: clamp(36px, 5vw, 56px);
  font-weight: 700;
  color: var(--c-navy);
  line-height: 1.25;
  margin: 24px 0 0;
}
.title-blue { color: var(--c-primary); }
.hero-sub {
  font-size: 20px;
  color: var(--c-navy);
  margin: 24px 0 12px;
  font-weight: 500;
}
.hero-desc {
  font-size: 14px;
  color: var(--c-muted);
  margin-bottom: 36px;
}
.hero-ctas {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 14px 28px;
  font-size: 14px;
  font-weight: 500;
  border-radius: 2px;
  transition: all 0.2s;
  cursor: pointer;
}
.btn-primary {
  background: var(--c-primary);
  color: #fff;
}
.btn-primary:hover {
  background: #154e91;
  transform: translateY(-1px);
}
.btn-outline {
  background: transparent;
  color: var(--c-primary);
  border: 1px solid var(--c-primary);
}
.btn-outline:hover {
  background: var(--c-primary);
  color: #fff;
}
.hero-image {
  position: relative;
  border-radius: 4px;
  overflow: hidden;
}
.hero-image img {
  width: 100%;
  height: auto;
  object-fit: cover;
}
.brand-watermark {
  position: absolute;
  top: -36px;
  right: 0;
  font-family: var(--font-en);
  font-size: 13px;
  font-weight: 500;
  color: var(--c-muted);
  letter-spacing: 0.3em;
}

/* ============================
   GLOBAL NETWORK
   ============================ */
.map-wrap {
  text-align: center;
  margin: 40px 0;
}
.world-map {
  max-width: 100%;
  margin: 0 auto;
}
.key-numbers {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  margin-top: 24px;
}
.kn { text-align: center; }
.kn-num {
  font-family: var(--font-en);
  font-size: clamp(32px, 4vw, 44px);
  font-weight: 700;
  color: var(--c-primary);
  line-height: 1;
}
.kn-label {
  font-size: 13px;
  color: var(--c-muted);
  margin-top: 12px;
}

/* ============================
   TWO-COLUMN LAYOUTS
   ============================ */
.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}
.two-col.reverse .col-image { order: -1; }
.col-image img {
  width: 100%;
  border-radius: 4px;
  object-fit: cover;
}
.col-image .caption {
  font-size: 13px;
  color: var(--c-muted);
  margin-top: 12px;
  text-align: right;
}
.caption.italic { font-style: italic; text-align: center; }

.chip-row {
  display: flex;
  gap: 12px;
  margin-top: 28px;
  flex-wrap: wrap;
}
.chip {
  padding: 8px 18px;
  background: var(--c-primary-light);
  color: var(--c-primary);
  font-size: 13px;
  border-radius: 2px;
}

/* ============================
   TIMELINE (Page 4)
   ============================ */
.timeline {
  margin: 40px 0 20px;
  text-align: center;
}
.timeline img {
  max-width: 100%;
  margin: 0 auto;
}

/* ============================
   CORE CAPABILITIES
   ============================ */
.cap-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}
.cap-card {
  background: #fff;
  border-radius: 4px;
  overflow: hidden;
  box-shadow: 0 2px 16px rgba(28, 42, 64, 0.06);
  transition: transform 0.2s, box-shadow 0.2s;
}
.cap-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 28px rgba(28, 42, 64, 0.1);
}
.cap-card img {
  width: 100%;
  aspect-ratio: 16 / 11;
  object-fit: cover;
}
.cap-body { padding: 36px 36px 44px; }
.cap-eyebrow {
  font-family: var(--font-en);
  font-size: 12px;
  font-weight: 700;
  color: var(--c-primary);
  letter-spacing: 0.3em;
  margin-bottom: 16px;
}
.cap-title {
  font-size: 22px;
  font-weight: 700;
  color: var(--c-navy);
  margin-bottom: 24px;
}
.cap-card ul {
  list-style: none;
  padding: 0;
}
.cap-card li {
  position: relative;
  padding-left: 16px;
  font-size: 14px;
  color: var(--c-text);
  line-height: 2.2;
}
.cap-card li::before {
  content: "·";
  position: absolute;
  left: 0;
  font-weight: 700;
  color: var(--c-primary);
}

/* ============================
   BAGLOGICAL
   ============================ */
.bag-title {
  font-family: var(--font-en);
  font-size: clamp(44px, 5vw, 56px);
  font-weight: 700;
  color: var(--c-navy);
  letter-spacing: -0.01em;
  margin: 8px 0 4px;
}
.bag-features {
  margin-top: 32px;
  display: flex;
  flex-direction: column;
  gap: 24px;
}
.bag-feature {
  display: grid;
  grid-template-columns: 140px 1fr;
  align-items: baseline;
  gap: 20px;
  border-left: 3px solid var(--c-primary);
  padding-left: 22px;
  padding-top: 4px;
  padding-bottom: 4px;
}
.bf-eyebrow {
  font-family: var(--font-en);
  font-size: 11px;
  font-weight: 700;
  color: var(--c-primary);
  letter-spacing: 0.3em;
  display: block;
}
.bf-zh {
  font-size: 18px;
  font-weight: 700;
  color: var(--c-navy);
  display: block;
  margin-top: 2px;
}
.bf-desc {
  font-size: 14px;
  color: var(--c-text);
}
.bag-screens {
  display: grid;
  grid-template-columns: 4fr 1fr;
  gap: 16px;
  align-items: end;
}
.screen-desktop img, .screen-mobile img {
  border-radius: 4px;
  box-shadow: 0 4px 20px rgba(28, 42, 64, 0.1);
}
.bag-footer {
  text-align: center;
  font-size: 18px;
  font-weight: 700;
  color: var(--c-primary);
  margin-top: 48px;
}
.bag-footer-sub {
  text-align: center;
  font-size: 13px;
  color: var(--c-muted);
  margin-top: 8px;
}

/* ============================
   STANDARDS (numbered items)
   ============================ */
.numbered-item {
  display: grid;
  grid-template-columns: 56px 1fr;
  gap: 16px;
  margin-top: 32px;
}
.num {
  font-family: var(--font-en);
  font-size: 24px;
  font-weight: 700;
  color: var(--c-primary);
}
.num-body h4 {
  font-size: 17px;
  color: var(--c-navy);
  margin-bottom: 12px;
}
.num-body p {
  font-size: 14px;
  color: var(--c-text);
  line-height: 1.85;
}
.three-tag {
  margin-top: 36px;
  font-family: var(--font-en);
  font-size: 14px;
  font-weight: 700;
  color: var(--c-primary);
  letter-spacing: 0.4em;
}
.three-tag.center { text-align: center; }

/* ============================
   SOURCING (channels)
   ============================ */
.channel-card {
  background: #fff;
  border-left: 3px solid var(--c-primary);
  padding: 28px 32px;
  margin-top: 20px;
  border-radius: 0 4px 4px 0;
  box-shadow: 0 2px 12px rgba(28, 42, 64, 0.05);
}
.ch-eyebrow {
  font-family: var(--font-en);
  font-size: 12px;
  font-weight: 700;
  color: var(--c-primary);
  letter-spacing: 0.2em;
  margin-bottom: 8px;
}
.channel-card h4 {
  font-size: 18px;
  color: var(--c-navy);
  margin-bottom: 14px;
}
.channel-card p {
  font-size: 14px;
  color: var(--c-text);
}
.bag-note {
  margin-top: 28px;
  font-size: 13px;
  color: var(--c-primary);
  font-style: italic;
}

/* ============================
   SALES NETWORK / SALES IN ACTION
   ============================ */
.sales-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
}
.sales-item img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border-radius: 4px;
  margin-bottom: 24px;
}
.sales-item h3 {
  font-size: 22px;
  color: var(--c-navy);
  margin-bottom: 12px;
}
.sales-item p {
  font-size: 14px;
  color: var(--c-text);
  line-height: 1.75;
}

/* ============================
   TEAM & CULTURE
   ============================ */
.team-grid {
  display: grid;
  grid-template-columns: 5fr 4fr;
  gap: 60px;
  align-items: center;
}
.team-image img {
  width: 100%;
  border-radius: 4px;
}
.team-values {
  display: flex;
  flex-direction: column;
  gap: 32px;
}
.value-card {
  border-left: 3px solid var(--c-primary);
  padding-left: 22px;
}
.value-eyebrow {
  font-family: var(--font-en);
  font-size: 12px;
  font-weight: 700;
  color: var(--c-primary);
  letter-spacing: 0.25em;
  margin-bottom: 10px;
}
.value-card p {
  font-size: 15px;
  color: var(--c-text);
  line-height: 1.7;
}
.motto {
  text-align: center;
  margin-top: 48px;
  font-family: var(--font-en);
  font-style: italic;
  font-size: 18px;
  color: var(--c-primary);
  letter-spacing: 0.05em;
}

/* ============================
   HONORS
   ============================ */
.honors-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.honor-card {
  background: #fff;
  padding: 36px 24px 40px;
  border-radius: 4px;
  text-align: center;
  box-shadow: 0 2px 14px rgba(28, 42, 64, 0.06);
}
.honor-card img {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: contain;
  margin-bottom: 24px;
}
.honor-card h4 {
  font-size: 15px;
  color: var(--c-navy);
  margin-bottom: 10px;
}
.honor-card .en {
  font-size: 12px;
  color: var(--c-primary);
  font-family: var(--font-en);
}

/* ============================
   CONTACT CARDS
   ============================ */
.contact-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 60px;
}
.contact-card {
  display: block;
  background: #fff;
  border: 1px solid var(--c-divider);
  border-radius: 4px;
  padding: 40px 32px;
  transition: all 0.2s;
}
.contact-card:hover {
  border-color: var(--c-primary);
  box-shadow: 0 6px 24px rgba(24, 100, 184, 0.08);
  transform: translateY(-2px);
}
.cc-eyebrow {
  font-family: var(--font-en);
  font-size: 11px;
  font-weight: 700;
  color: var(--c-primary);
  letter-spacing: 0.3em;
  margin-bottom: 16px;
}
.contact-card h3 {
  font-size: 20px;
  color: var(--c-navy);
  margin-bottom: 14px;
}
.contact-card p {
  font-size: 13px;
  color: var(--c-text);
  margin-bottom: 20px;
  line-height: 1.85;
}
.cc-link {
  font-size: 13px;
  color: var(--c-primary);
  font-weight: 500;
}

.contact-info {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  padding: 40px;
  background: var(--c-section-bg);
  border-radius: 4px;
}
.ci-label {
  font-size: 12px;
  color: var(--c-muted);
  letter-spacing: 0.1em;
  margin-bottom: 10px;
}
.ci-value {
  font-size: 14px;
  color: var(--c-navy);
  line-height: 1.6;
}
.ci-value a { color: var(--c-primary); }

/* ============================
   B2B CARDS
   ============================ */
.b2b-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-bottom: 56px;
}
.b2b-card {
  background: #fff;
  padding: 36px 28px;
  border-radius: 4px;
  box-shadow: 0 2px 14px rgba(28, 42, 64, 0.05);
}
.b2b-num {
  font-family: var(--font-en);
  font-size: 28px;
  font-weight: 700;
  color: var(--c-primary);
  margin-bottom: 20px;
  line-height: 1;
}
.b2b-card h4 {
  font-size: 17px;
  color: var(--c-navy);
  margin-bottom: 14px;
  line-height: 1.5;
}
.b2b-card p {
  font-size: 13px;
  color: var(--c-text);
  line-height: 1.8;
}

/* ============================
   FORMS
   ============================ */
.form-box {
  background: #fff;
  padding: 56px;
  border-radius: 4px;
  box-shadow: 0 4px 24px rgba(28, 42, 64, 0.06);
  max-width: 800px;
  margin: 0 auto;
}
.form-box h3 {
  font-size: 24px;
  color: var(--c-navy);
  margin: 12px 0 20px;
}
.form-hint {
  font-size: 13px;
  color: var(--c-muted);
  margin-bottom: 32px;
}
.contact-form { display: flex; flex-direction: column; gap: 20px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.contact-form input,
.contact-form select,
.contact-form textarea {
  width: 100%;
  padding: 14px 16px;
  border: 1px solid var(--c-card-border);
  border-radius: 2px;
  font-family: inherit;
  font-size: 14px;
  color: var(--c-text);
  background: #fff;
  transition: border-color 0.2s;
}
.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: var(--c-primary);
}
.contact-form textarea { resize: vertical; min-height: 96px; }
.contact-form button {
  align-self: flex-start;
  margin-top: 8px;
}
.form-status {
  font-size: 13px;
  margin-top: 4px;
  min-height: 18px;
}
.form-status.success { color: #1a8b3c; }
.form-status.error { color: #c0392b; }

/* ============================
   CONSIGNMENT STEPS
   ============================ */
.step-grid {
  display: grid;
  grid-template-columns: 1fr auto 1fr auto 1fr auto 1fr;
  gap: 16px;
  align-items: center;
  margin-bottom: 56px;
}
.step {
  text-align: center;
  padding: 36px 20px 40px;
  background: var(--c-section-bg);
  border-radius: 4px;
}
.step-num {
  font-family: var(--font-en);
  font-size: 22px;
  font-weight: 700;
  color: var(--c-primary);
  margin-bottom: 16px;
  line-height: 1;
}
.step h4 { font-size: 16px; color: var(--c-navy); margin-bottom: 12px; }
.step p { font-size: 13px; color: var(--c-text); line-height: 1.75; }
.step-arrow {
  font-size: 20px;
  color: var(--c-primary);
  font-weight: 300;
}

.advantages {
  background: var(--c-section-bg);
  padding: 36px;
  border-radius: 4px;
  margin-bottom: 56px;
}
.advantages h3 { font-size: 18px; color: var(--c-navy); margin: 8px 0 16px; }
.adv-list {
  list-style: none;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin: 16px 0;
}
.adv-list li {
  font-size: 14px;
  color: var(--c-text);
  padding-left: 24px;
  position: relative;
}
.adv-list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--c-primary);
  font-weight: 700;
}

.general-inquiry {
  margin-top: 60px;
  padding: 36px;
  text-align: center;
  border-top: 1px solid var(--c-divider);
}
.general-inquiry h3 {
  font-size: 22px;
  color: var(--c-navy);
  margin-bottom: 12px;
}
.general-inquiry p {
  font-size: 14px;
  color: var(--c-text);
  margin-bottom: 16px;
}
.big-email {
  font-size: 20px !important;
  margin-top: 12px !important;
}
.big-email a {
  color: var(--c-primary);
  font-weight: 600;
  letter-spacing: 0.05em;
}

/* ============================
   FOOTER
   ============================ */
.footer {
  background: var(--c-navy);
  color: #B5C2D2;
  padding: 36px var(--pad-x);
  font-size: 12px;
}
.footer-inner {
  max-width: var(--maxw);
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}
.footer-right {
  font-family: var(--font-en);
  letter-spacing: 0.3em;
}

/* ============================
   RESPONSIVE
   ============================ */
@media (max-width: 960px) {
  .nav-toggle { display: flex; }
  .nav-links {
    position: absolute;
    top: var(--nav-h);
    left: 0; right: 0;
    flex-direction: column;
    background: #fff;
    border-bottom: 1px solid var(--c-divider);
    padding: 20px var(--pad-x);
    gap: 18px;
    transform: translateY(-120%);
    opacity: 0;
    pointer-events: none;
    transition: all 0.3s ease;
  }
  .nav-links.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }
  .hero-grid,
  .two-col,
  .sales-grid,
  .team-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .two-col.reverse .col-image { order: 0; }
  .key-numbers {
    grid-template-columns: repeat(2, 1fr);
    gap: 28px;
  }
  .cap-grid,
  .honors-grid,
  .contact-grid,
  .b2b-grid,
  .contact-info,
  .adv-list {
    grid-template-columns: 1fr 1fr;
    gap: 20px;
  }
  .step-grid {
    grid-template-columns: 1fr 1fr;
    gap: 16px;
  }
  .step-arrow { display: none; }
  .bag-screens { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .form-box { padding: 28px 20px; }
  .brand-watermark { display: none; }
  .section { padding: 64px var(--pad-x); }
  .section-hero { min-height: auto; padding-bottom: 60px; }
}

@media (max-width: 600px) {
  .key-numbers,
  .cap-grid,
  .honors-grid,
  .contact-grid,
  .b2b-grid,
  .contact-info,
  .adv-list {
    grid-template-columns: 1fr;
  }
  .step-grid { grid-template-columns: 1fr; }
  .hero-ctas .btn { flex: 1; justify-content: center; }
  .footer-inner { flex-direction: column; text-align: center; }
}