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

html {
  scroll-behavior: smooth;
  overflow-x: hidden;
}

body {
  font-family: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
  color: #222;
  line-height: 1.6;
  background: #fff;
  overflow-x: hidden;
  padding-top: 80px;
}

a { text-decoration: none; color: inherit; transition: all 0.3s ease; }
img { max-width: 100%; height: auto; display: block; }
ul, ol { list-style: none; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }

/* ================================
   Page Content Wrapper - 1200px centered
   ================================ */
.page-scale {
  width: 100%;
}

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

/* ================================
   Common Variables
   ================================ */
:root {
  --color-primary: #2e54a1;
  --color-primary-light: #4a7ad4;
  --color-text-dark: #222;
  --color-text-gray: #666;
  --color-text-light: #999;
  --color-text-white: #fff;
  --color-bg-dark: #202020;
  --color-bg-light: #f8f8f8;
  --color-border: #e4e4e4;
  --font-alimama: 'Alimama ShuHeiTi', sans-serif;
  --font-noto: 'Noto Sans SC', sans-serif;
  --font-din: 'DIN Pro', sans-serif;
  --font-alfa: 'Alfa Slab One', serif;
}

/* ================================
   Navbar
   ================================ */
.navbar {
  width: 100%;
  min-height: 80px;
  box-shadow: 0 4px 8px rgba(0,0,0,0.1);
  background: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  position: fixed;
  top: 0;
  left: 0;
  z-index: 999;
  font-family: var(--font-noto);
}
.navbar-inner {
  width: 100%;
  max-width: 1200px;
  display: flex;
  align-items: center;
  gap: 27px;
  padding: 16px 20px;
  margin: 0 auto;
}
.logo-area {
  display: flex;
  align-items: center;
  gap: 5px;
  flex-shrink: 0;
}
.logo-area .company {
  display: flex;
  flex-direction: column;
  line-height: 1.25;
}
.logo-area img {
  width: 40px;
  height: 40px;
  object-fit: cover;
}
.logo-area .company-name {
  font-size: 21px;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: #222;
  font-family: var(--font-alimama);
  white-space: nowrap;
}
.logo-area .company-name-en {
  font-size: 12px;
  letter-spacing: 0.05em;
  color: #222;
  font-family: var(--font-alimama);
  white-space: nowrap;
  transform: scale(0.8);
  transform-origin: left;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 27px;
  font-size: 16px;
  color: #222;
  margin-left: auto;
  height: 35px;
}
.nav-links a {
  font-weight: 400;
  white-space: nowrap;
  display: flex;
  align-items: center;
  gap: 5px;
  color: #222;
}
.nav-links a:hover,
.nav-links a.active {
  color: var(--color-primary);
}
.nav-links .arrow {
  width: 10px;
  height: 5px;
}
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
  margin-left: auto;
  background: none;
  border: none;
}
.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: #222;
  border-radius: 2px;
  transition: all 0.3s;
}
.nav-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}
.nav-toggle.active span:nth-child(2) {
  opacity: 0;
}
.nav-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* ================================
   Section Header Component
   ================================ */
.section-header {
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 10px;
  width: 100%;
}
.section-header__row {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  text-align: center;
}
.section-header__row .section-header__title {
  flex: 1;
}
.section-header__mark {
  margin: 0;
  letter-spacing: 0.05em;
  font-size: 42px;
  font-weight: 400;
  font-family: var(--font-alfa);
  color: var(--color-primary);
  flex-shrink: 0;
  line-height: 1;
}
.section-header__title {
  margin: 0;
  font-size: 28px;
  letter-spacing: 0.05em;
  font-weight: 700;
  font-family: var(--font-noto);
  flex: 1;
  min-width: 0;
  line-height: 1.2;
  display: flex;
  justify-content: center;
}
.section-header__highlight {
  color: var(--color-primary);
}
.section-header__desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.5em;
  letter-spacing: 0.05em;
  font-family: var(--font-noto);
  color: #4a5565;
  width: 80%;
  margin: 0 auto;
  text-align: center;
}

/* ================================
   Footer
   ================================ */
.footer-section {
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 0;
  box-sizing: border-box;
  position: relative;
  gap: 43px;
  text-align: center;
  font-size: 12px;
  color: #c5c5c5;
  font-family: var(--font-noto);
}
.footer-bg {
  width: 100%;
  height: 500px;
  position: absolute;
  top: 0;
  left: 0;
  background-color: #202020;
  z-index: 0;
}
.footer-bottom-bar {
  width: 100%;
  height: 60px;
  position: absolute;
  bottom: 0;
  left: 0;
  background-color: #000;
  z-index: 2;
}
.footer-container-wrapper {
  width: 100%;
  align-items: flex-start;
  justify-content: center;
  box-sizing: border-box;
  z-index: 3;
  margin: 0 auto;
  background-color: #202020;
  overflow: hidden;
}
.footer-container {
  max-width: 1200px;
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  margin: 0 auto;
}
.footer-wrapper {
  padding: 60px 0;
  width: 100%;
  display: flex;
  align-items: flex-start;
  gap: 27px;
  flex-wrap: wrap;
}
.footer-details {
  flex: 1;
  min-width: 200px;
  display: flex;
  flex-direction: column;
  gap: 25px;
  text-align: left;
  font-size: 31px;
  color: #666;
  font-family: var(--font-alimama);
}
.footer-logo-row {
  width: 100%;
  max-width: 357px;
  display: flex;
  align-items: flex-end;
  gap: 14px;
}
.footer-logo-row img {
  height: 63px;
  object-fit: cover;
  flex-shrink: 0;
}
.footer-logo-text {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 0.5px;
}
.footer-logo-text h2 {
  font-size: 31px;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: #666;
  font-family: var(--font-alimama);
}
.footer-logo-text .en-name {
  font-size: 10px;
  letter-spacing: 0.15em;
  font-weight: 600;
  color: #666;
  font-family: 'Inter', sans-serif;
}
.footer-company-info {
  width: 100%;
  padding: 0 0 0 3px;
  font-size: 20px;
  color: #e4e4e4;
}
.footer-company-info h2 {
  font-size: 20px;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: #e4e4e4;
  margin-bottom: 8px;
}
.footer-company-info .info-line {
  font-size: 12px;
  color: #C5C5C5;
  letter-spacing: 0.05em;
  line-height: 30px;
}
.footer-divider {
  height: 400px;
  width: 4px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  padding: 0 3px 0 0;
  flex-shrink: 0;
}
.footer-divider-line {
  width: 1px;
  height: 400px;
  background-color: #333;
}
.footer-links-wrapper {
  flex: 2;
  min-width: 200px;
  display: flex;
  flex-direction: column;
  padding: 88px 0 0;
  text-align: left;
  font-size: 16px;
  color: #e4e4e4;
}
.footer-links {
  width: 100%;
  display: flex;
  gap: 25px;
  flex-wrap: wrap;
}
.footer-link-group {
  flex: 1;
  min-width: 93px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.footer-link-group h3 {
  font-size: 16px;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: #e4e4e4;
}
.footer-link-group a {
  font-size: 12px;
  color: #c5c5c5;
  letter-spacing: 0.05em;
  line-height: 30px;
}
.footer-link-group a:hover {
  color: #fff;
}
.footer-copyright {
  width: 100%;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: 0 13px;
  line-height: 20px;
  color: #c5c5c5;
  font-size: 12px;
  text-align: center;
  background-color: #000;
}

.contact-decoration {
  width: 44px;
  height: 44px;
  position: fixed;
  right: 30px;
  bottom: 40px;
  z-index: 1000;
  cursor: pointer;
  transform: rotate(180deg);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s, visibility 0.3s;
}
.contact-decoration.visible {
  opacity: 1;
  visibility: visible;
}
.contact-decoration:hover {
  transform: rotate(180deg) scale(1.1);
}
.decoration-rect {
  position: absolute;
  width: 100%;
  height: 100%;
  top: 0; left: 0;
  background: #fff;
  border: 1px solid #999;
  border-radius: 4px;
}
.contact-decoration img {
  position: absolute;
  width: 40%;
  top: 36%;
  left: 30%;
  height: 8px;
  z-index: 1;
}
/* ================================
   Responsive
   ================================ */
@media (max-width: 1200px) {
  .navbar-inner { gap: 15px; padding: 15px 20px; }
  .nav-links { gap: 18px; font-size: 14px; }
  .logo-area .company-name { font-size: 16px; }
  .footer-wrapper { flex-direction: column; gap: 20px; }
  .footer-divider { display: none; }
  .footer-links-wrapper { padding: 0; }
  .footer-links { gap: 20px; }
  .footer-details,.footer-links-wrapper{
    margin: 0 auto;
    text-align: center;
  }
  .footer-logo-row { justify-content: center; }
}
@media (max-width: 768px) {
  .navbar-inner { flex-wrap: wrap; gap: 8px; padding: 10px 15px; }
  .nav-links { gap: 8px; font-size: 13px; flex-direction: column; align-items: center; display: none; width: 100%; padding: 10px 0 0; order: 3; }
  .nav-links.open { display: flex; }
  .nav-toggle { display: flex; order: 2; }
  .logo-area { order: 1; }
  .logo-area .company-name { font-size: 14px; white-space: normal; }
  .footer-logo-row { justify-content: center; }
}