/* =========================================================
   FEECCO — brand site styles
   Palette: black / white / grey / deep navy (derived from logo)
   ========================================================= */

:root {
  --ink: #17262e;          /* logo 墨色，主色 */
  --ink-deep: #0f1b22;
  --navy: #14283c;         /* 深蓝 */
  --text: #1d2830;
  --body: #414e5a;
  --muted: #6d7a87;
  --line: #e4e8ec;
  --line-soft: #eef1f4;
  --bg: #ffffff;
  --bg-alt: #f5f6f8;
  --radius: 4px;
  --maxw: 1180px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Helvetica Neue",
    "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img { display: block; max-width: 100%; }

.container {
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: saturate(160%) blur(10px);
  border-bottom: 1px solid var(--line-soft);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 80px;
}
.brand {
  display: inline-flex;
  align-items: center;
}
.brand img {
  height: 46px;
  width: auto;
  display: block;
}
.nav-links { display: flex; gap: 34px; }
.nav-links a {
  color: var(--muted);
  text-decoration: none;
  font-size: 15px;
  font-weight: 500;
  transition: color 0.16s ease;
}
.nav-links a:hover { color: var(--ink); }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  min-height: min(84vh, 720px);
  display: flex;
  align-items: center;
  overflow: hidden;
  background: var(--ink-deep);
}
.hero-media { position: absolute; inset: 0; }
.hero-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 32%;
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    100deg,
    rgba(10, 20, 27, 0.92) 0%,
    rgba(10, 20, 27, 0.72) 38%,
    rgba(10, 20, 27, 0.30) 72%,
    rgba(10, 20, 27, 0.12) 100%
  );
}
.hero-inner {
  position: relative;
  z-index: 2;
  padding-top: 96px;
  padding-bottom: 96px;
}
.hero h1 {
  color: #fff;
  font-size: clamp(32px, 4.8vw, 60px);
  line-height: 1.08;
  letter-spacing: -0.022em;
  font-weight: 700;
  max-width: 760px;
  margin: 0 0 36px;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 15px 34px;
  border-radius: 3px;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.01em;
  text-decoration: none;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background 0.18s ease, color 0.18s ease, border-color 0.18s ease, transform 0.18s ease;
}
.btn-primary {
  background: #fff;
  color: var(--ink-deep);
  border-color: #fff;
}
.btn-primary:hover {
  background: transparent;
  color: #fff;
}
.btn-solid {
  background: var(--ink);
  color: #fff;
  border-color: var(--ink);
}
.btn-solid:hover { background: var(--ink-deep); border-color: var(--ink-deep); }
.btn-ghost {
  background: transparent;
  color: #fff;
  border-color: rgba(255, 255, 255, 0.45);
  white-space: nowrap;
}
.btn-ghost:hover {
  background: #fff;
  color: var(--ink-deep);
  border-color: #fff;
}

/* ---------- Shared section bits ---------- */
.section { padding: 96px 0; }
.eyebrow {
  display: block;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 16px;
}
.eyebrow-light { color: rgba(255, 255, 255, 0.55); }
h2 {
  font-size: clamp(26px, 3vw, 38px);
  line-height: 1.18;
  letter-spacing: -0.018em;
  font-weight: 700;
  margin: 0 0 24px;
  color: var(--ink);
}
.muted { color: var(--muted); }

/* ---------- About ---------- */
.about-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 76px;
  align-items: center;
}
.about-copy p {
  font-size: 17px;
  line-height: 1.75;
  color: var(--body);
  margin: 0 0 20px;
}
.pull-quote {
  margin: 30px 0 0 !important;
  padding-left: 20px;
  border-left: 3px solid var(--ink);
  font-size: 18px !important;
  font-weight: 600;
  color: var(--ink) !important;
  line-height: 1.5 !important;
}
.about-media { margin: 0; }
.about-media img {
  width: 100%;
  border-radius: var(--radius);
  filter: grayscale(100%) contrast(1.04);
}

/* ---------- Products ---------- */
.products { background: var(--bg-alt); }
.section-head { margin-bottom: 48px; }
.section-head h2 { margin-bottom: 0; }
.product-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 26px;
}
.product-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform 0.22s ease, box-shadow 0.22s ease, border-color 0.22s ease;
}
.product-card:hover {
  transform: translateY(-4px);
  border-color: #d6dce2;
  box-shadow: 0 16px 34px rgba(18, 32, 42, 0.10);
}
.product-media {
  aspect-ratio: 1 / 1;
  overflow: hidden;
  background: #eef1f4;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 22px;
}
.product-media img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  transition: transform 0.4s ease;
}
.product-card:hover .product-media img { transform: scale(1.04); }
.product-card h3 {
  margin: 20px 22px 6px;
  font-size: 17px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--ink);
}
.product-card p {
  margin: 0;
  padding: 0 22px 24px;
  font-size: 14px;
  line-height: 1.55;
  color: var(--muted);
}

/* ---------- Where to buy ---------- */
.amazon-band {
  background: linear-gradient(135deg, #14283c 0%, #17262e 100%);
  padding: 84px 0;
  color: #fff;
}
.amazon-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 48px;
  flex-wrap: wrap;
}
.amazon-copy h2 {
  color: #fff;
  font-size: clamp(23px, 2.6vw, 33px);
  max-width: 620px;
  margin-bottom: 14px;
}
.amazon-copy p {
  margin: 0;
  color: rgba(255, 255, 255, 0.74);
  font-size: 16px;
}
.amazon-copy strong { color: #fff; }

/* ---------- Contact ---------- */
.contact-wrap { max-width: 660px; }
.contact .muted { font-size: 16px; margin: 0 0 36px; }

.field { margin-bottom: 20px; }
.field label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.02em;
  margin-bottom: 8px;
  color: var(--text);
}
.field input,
.field textarea {
  width: 100%;
  padding: 13px 15px;
  border: 1px solid var(--line);
  border-radius: 3px;
  font-size: 15px;
  font-family: inherit;
  color: var(--text);
  background: #fff;
  transition: border-color 0.16s ease, box-shadow 0.16s ease;
}
.field input:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--ink);
  box-shadow: 0 0 0 3px rgba(23, 38, 46, 0.10);
}
.field textarea { resize: vertical; }
.h-captcha { margin: 6px 0 24px; }

/* ---------- Thanks page ---------- */
.thanks-hero {
  background: linear-gradient(135deg, #14283c 0%, #17262e 100%);
  min-height: 72vh;
}
.thanks-lead {
  color: rgba(255, 255, 255, 0.78);
  font-size: 18px;
  max-width: 560px;
  margin: 0 0 36px;
}

/* ---------- Footer ---------- */
.site-footer {
  background: var(--bg-alt);
  border-top: 1px solid var(--line-soft);
  padding: 64px 0 44px;
  text-align: center;
}
.footer-logo {
  height: 50px;
  width: auto;
  margin: 0 auto 18px;
}
.site-footer p {
  margin: 0;
  font-size: 13px;
  letter-spacing: 0.02em;
  color: #7d8a96;
}

/* ---------- Responsive ---------- */
@media (max-width: 980px) {
  .about-grid { grid-template-columns: 1fr; gap: 44px; }
  .about-media { order: -1; }
  .product-grid { grid-template-columns: repeat(2, 1fr); }
  .amazon-inner { flex-direction: column; align-items: flex-start; }
  .section { padding: 72px 0; }
  .hero-inner { padding-top: 80px; padding-bottom: 80px; }
}

@media (max-width: 620px) {
  .container { padding: 0 18px; }
  .header-inner { height: 68px; }
  .brand img { height: 32px; }
  .nav-links { gap: 14px; }
  .nav-links a { font-size: 13px; }
  .hero { min-height: 66vh; }
  .hero h1 { margin-bottom: 28px; }
  .btn { padding: 14px 26px; }
  .product-grid { grid-template-columns: 1fr; }
  .section { padding: 60px 0; }
  .amazon-band { padding: 60px 0; }
  .footer-logo { height: 40px; }
}

/* 超小屏：LOGO 与导航并存，进一步压缩，避免溢出 */
@media (max-width: 400px) {
  .container { padding: 0 14px; }
  .brand img { height: 27px; }
  .nav-links { gap: 10px; }
  .nav-links a { font-size: 12px; }
}