/* 文件路径：assets/css/style.css */

/* ========== Reset ========== */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: Inter, Arial, sans-serif;
  background: #F4F1EA;
  color: #2E2A26;
  line-height: 1.6;
}

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

a {
  text-decoration: none;
  color: inherit;
}

/* ========== Variables ========== */
:root {
  --color-bg: #F4F1EA;
  --color-warm-gray: #C9C3B8;
  --color-dark-brown: #3E342B;
  --color-dark-gray: #2E2A26;
  --color-border: #A8A29E;
  --color-accent: #A67C52;
  --color-white: #ffffff;

  --container-width: 1200px;
}

/* ========== Typography ========== */
h1,
h2,
h3 {
  font-family: "Playfair Display", serif;
  color: var(--color-dark-brown);
  line-height: 1.2;
}

h1 {
  font-size: 42px;
}

h2 {
  font-size: 32px;
  margin-bottom: 20px;
}

h3 {
  font-size: 22px;
  margin-bottom: 10px;
}

p {
  margin-bottom: 15px;
}

ul {
  padding-left: 20px;
}

li {
  margin-bottom: 8px;
}

/* ========== Layout ========== */
.container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 20px;
}

.section {
  padding: 80px 0;
}

.section-sm {
  padding: 40px 0;
}

.grid {
  display: grid;
  gap: 30px;
}

.grid-4 {
  grid-template-columns: repeat(4, 1fr);
}

.grid-3 {
  grid-template-columns: repeat(3, 1fr);
}

.grid-2 {
  grid-template-columns: repeat(2, 1fr);
}

.split {
  display: flex;
  gap: 40px;
  align-items: center;
}

.stack {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.text-center {
  text-align: center;
}

/* ========== Buttons ========== */
.btn {
  display: inline-block;
  padding: 12px 24px;
  border-radius: 4px;
  font-weight: 600;
  transition: all 0.3s ease;
}

.btn-primary {
  background: var(--color-accent);
  color: var(--color-white);
  border: 1px solid var(--color-accent);
}

.btn-primary:hover {
  background: #916844;
  border-color: #916844;
}

.btn-outline {
  border: 1px solid var(--color-accent);
  color: var(--color-accent);
  background: transparent;
}

.btn-outline:hover {
  background: var(--color-accent);
  color: var(--color-white);
}

/* ========== Header / Nav ========== */
header {
  background: rgba(255, 255, 255, 0.96);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 1000;
  backdrop-filter: blur(6px);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 76px;
  position: relative;
}

.logo img {
  height: 42px;
  width: auto;
}

.nav-menu {
  display: flex;
  gap: 28px;
  align-items: center;
}

.nav-menu a {
  font-size: 15px;
  position: relative;
  color: var(--color-dark-gray);
}

.nav-menu a:not(.btn)::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -8px;
  width: 0;
  height: 2px;
  background: var(--color-accent);
  transition: width 0.3s ease;
}

.nav-menu a:not(.btn):hover::after,
.nav-menu a.active::after {
  width: 100%;
}

.nav-menu a.active {
  color: var(--color-accent);
}

.nav-cta {
  margin-left: 8px;
}

.mobile-toggle {
  display: none;
  font-size: 26px;
  cursor: pointer;
  color: var(--color-dark-brown);
  line-height: 1;
}

/* ========== Footer ========== */
footer {
  background: var(--color-dark-brown);
  color: #F4F1EA;
  padding: 64px 0 48px;
  margin-top: 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr 1fr 1.2fr;
  gap: 40px;
}

.footer h3 {
  color: #F4F1EA;
  margin-bottom: 18px;
}

.footer a {
  display: block;
  margin-bottom: 10px;
  font-size: 14px;
  color: #F4F1EA;
  opacity: 0.92;
}

.footer a:hover {
  opacity: 1;
  color: #ffffff;
}

.footer p {
  font-size: 15px;
  margin-bottom: 12px;
  color: #F4F1EA;
}

/* ========== Cards ========== */
.card,
.card-light,
.card-dark {
  border-radius: 8px;
  padding: 28px;
  transition: all 0.3s ease;
}

.card,
.card-light {
  border: 1px solid var(--color-border);
  background: #fff;
  color: var(--color-dark-gray);
}

.card:hover,
.card-light:hover {
  border-color: var(--color-accent);
  transform: translateY(-2px);
}

.card-dark {
  background: var(--color-dark-brown);
  color: #F4F1EA;
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.card-dark h1,
.card-dark h2,
.card-dark h3,
.card-dark p,
.card-dark li,
.card-dark a {
  color: #F4F1EA;
}

.card-dark .btn-primary {
  margin-top: 8px;
}

/* ========== Hero ========== */
.hero {
  min-height: 80vh;
  background-size: cover;
  background-position: center;
  position: relative;
  display: flex;
  align-items: center;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    90deg,
    rgba(46, 42, 38, 0.78) 0%,
    rgba(46, 42, 38, 0.48) 55%,
    rgba(46, 42, 38, 0.3) 100%
  );
}

.hero-content {
  position: relative;
  color: #fff;
  max-width: 620px;
  padding: 80px 0;   /* 上下更松 */
}

.hero-content h1 {
  color: #fff;
  margin-bottom: 18px;
  letter-spacing: 2px;
  font-size: 52px;

  text-shadow: 0 4px 20px rgba(0,0,0,0.4); /* 关键 */
}

.hero-content p {
  color: #fff;
  margin-bottom: 30px;   /* 让描述和按钮拉开 */
  line-height: 1.8;      /* 行距更舒服 */
  max-width: 520px;
}

.hero-actions {
  display: flex;
  flex-direction: column;   /* 改成上下排列（更高级） */
  gap: 16px;
  margin-top: 10px;
}

/* ========== Image Frame ========== */
.image-frame {
  overflow: hidden;
  border-radius: 10px;
  background: #ddd;
  width: 100%;
  aspect-ratio: 4 / 3;
}

.image-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

/* ========== Tables ========== */
table {
  width: 100%;
  border-collapse: collapse;
  background: #fff;
}

table th,
table td {
  border: 1px solid var(--color-border);
  padding: 12px;
  text-align: left;
  vertical-align: top;
}

table th {
  background: #eee8df;
}

/* ========== Form ========== */
form input,
form textarea,
form select {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--color-border);
  margin-bottom: 15px;
  border-radius: 4px;
  background: #fff;
  color: var(--color-dark-gray);
}

form textarea {
  min-height: 140px;
  resize: vertical;
}

form input:focus,
form textarea:focus,
form select:focus {
  outline: none;
  border-color: var(--color-accent);
}

/* ========== CTA Section ========== */
.cta-banner {
  padding-top: 32px;
  padding-bottom: 32px;
}

.cta-banner .card-dark {
  padding: 44px 48px;
}

.cta-banner h2 {
  margin-bottom: 14px;
}

.cta-banner p {
  max-width: 720px;
  margin-bottom: 22px;
}

/* ========== Info blocks ========== */
.info-list p:last-child,
.card p:last-child,
.card-dark p:last-child,
.card-light p:last-child {
  margin-bottom: 0;
}

/* ========== FAQ ========== */
.faq-item {
  border-bottom: 1px solid var(--color-border);
  padding: 18px 0;
  cursor: pointer;
}

.faq-question {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  align-items: center;
}

.faq-question h3 {
  margin-bottom: 0;
  font-size: 20px;
}

.faq-answer {
  display: none;
  padding-top: 12px;
}

.faq-item.open .faq-answer {
  display: block;
}

/* ========== Responsive ========== */
@media (max-width: 992px) {
  .grid-4,
  .grid-3,
  .grid-2 {
    grid-template-columns: 1fr 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }

  .hero {
    min-height: 68vh;
  }
}

@media (max-width: 768px) {
  h1 {
    font-size: 34px;
  }

  h2 {
    font-size: 28px;
  }

  .section {
    padding: 64px 0;
  }

  .section-sm {
    padding: 44px 0;
  }

  .grid-4,
  .grid-3,
  .grid-2 {
    grid-template-columns: 1fr;
  }

  .split {
    flex-direction: column;
    align-items: stretch;
  }

  .nav-menu {
    display: none;
    flex-direction: column;
    align-items: flex-start;
    gap: 18px;
    background: #fff;
    position: absolute;
    top: 76px;
    left: 0;
    width: 100%;
    padding: 20px;
    border-bottom: 1px solid var(--color-border);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
  }

  .nav-menu.open {
    display: flex;
  }

  .nav-cta {
    margin-left: 0;
  }

  .mobile-toggle {
    display: block;
  }

  .hero-content {
    max-width: 100%;
  }

  .cta-banner .card-dark {
    padding: 32px 24px;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 16px;
  }

  .btn {
    width: 100%;
    text-align: center;
  }

  .hero-actions {
    flex-direction: column;
  }
}
.trust-section .split {
  display: flex;
  gap: 40px;
  align-items: stretch;
}

.trust-section .split > div {
  flex: 1;
}

.trust-section .image-frame {
  height: 100%;
  min-height: 520px;
}

.trust-section .image-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}
.trust-section .split {
  display: flex;
  gap: 40px;
  align-items: center; /* 👈 关键：垂直居中 */
}

.trust-section .split > div {
  flex: 1;
}