/* ===================================================================
   modern.css — Game Changer / 游创 官网视觉 & 性能统一增强层
   加载顺序：bootstrap.min.css → page.min.css → plugins.css → style.css → modern.css
   职责：统一色彩系统、字体、间距、卡片、按钮、响应式、动效；不破坏原有结构
   =================================================================== */

:root {
  --gc-primary: #4f7cff;
  --gc-primary-600: #3a63e0;
  --gc-primary-050: #eef3ff;
  --gc-accent: #ff8a3d;
  --gc-accent-600: #f26a15;
  --gc-success: #1fb978;
  --gc-danger: #ef4d5a;
  --gc-ink-900: #0f1a2e;
  --gc-ink-700: #1f2a44;
  --gc-ink-500: #56617a;
  --gc-ink-300: #9aa3b7;
  --gc-line: #e7ebf3;
  --gc-bg-soft: #f6f8fc;
  --gc-bg-elev: #ffffff;

  --gc-radius-sm: 10px;
  --gc-radius: 16px;
  --gc-radius-lg: 22px;

  --gc-shadow-1: 0 2px 8px rgba(15, 26, 46, 0.04), 0 1px 2px rgba(15, 26, 46, 0.03);
  --gc-shadow-2: 0 12px 28px rgba(15, 26, 46, 0.08), 0 2px 6px rgba(15, 26, 46, 0.04);
  --gc-shadow-3: 0 24px 48px rgba(15, 26, 46, 0.12);

  --gc-ease: cubic-bezier(0.22, 1, 0.36, 1);
}

/* ----------- 全局 base ----------- */
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  color: var(--gc-ink-700);
  background: var(--gc-bg-elev);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Helvetica Neue",
    Helvetica, Roboto, Arial, "PingFang SC", "Hiragino Sans GB",
    "Microsoft Yahei", "Microsoft Jhenghei", sans-serif;
  font-feature-settings: "palt" 1;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img { max-width: 100%; height: auto; }
a { transition: color .2s var(--gc-ease); }
a:hover { text-decoration: none !important; }

*:focus-visible {
  outline: 2px solid var(--gc-primary);
  outline-offset: 2px;
  border-radius: 4px;
}

/* ----------- 导航栏 ----------- */
nav[data-navbar="fixed"] {
  background: rgba(255, 255, 255, 0.85) !important;
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  box-shadow: 0 1px 0 rgba(15, 26, 46, 0.06) !important;
  min-height: 64px !important;
  transition: box-shadow .25s var(--gc-ease), background .25s var(--gc-ease);
}
header .navbar-nav a.nav-link {
  color: var(--gc-ink-700) !important;
  font-weight: 500;
  position: relative;
  padding: .5rem .9rem;
}
header .navbar-nav a.nav-link:hover { color: var(--gc-primary) !important; }
header .navbar-nav a.nav-link::after {
  content: "";
  position: absolute; left: 50%; bottom: 2px;
  width: 0; height: 2px;
  background: var(--gc-primary);
  transform: translateX(-50%);
  transition: width .25s var(--gc-ease);
  border-radius: 2px;
}
header .navbar-nav a.nav-link:hover::after,
header .navbar-nav .active a.nav-link::after { width: 20px; }

/* 语言切换按钮 */
button.btn.btn-primary.dropdown-toggle {
  background: var(--gc-accent) !important;
  border-color: var(--gc-accent) !important;
  border-radius: 999px !important;
  box-shadow: 0 4px 12px rgba(255, 138, 61, .28) !important;
  transition: transform .2s var(--gc-ease), box-shadow .2s var(--gc-ease),
    background .2s var(--gc-ease) !important;
}
button.btn.btn-primary.dropdown-toggle:hover {
  background: var(--gc-accent-600) !important;
  transform: translateY(-1px);
  box-shadow: 0 6px 16px rgba(242, 106, 21, .35) !important;
}
.dropdown-menu {
  border: 1px solid var(--gc-line) !important;
  border-radius: var(--gc-radius-sm) !important;
  box-shadow: var(--gc-shadow-2) !important;
  padding: .4rem !important;
}
.dropdown-menu .dropdown-item {
  border-radius: 8px !important;
  padding: .55rem .8rem !important;
  font-size: 14px;
}
.dropdown-menu .dropdown-item:hover { background: var(--gc-primary-050) !important; color: var(--gc-primary) !important; }
.dropdown-menu .dropdown-item.active { background: var(--gc-primary) !important; color: #fff !important; }

/* ----------- Hero ----------- */
header.header.c111413,
header.header {
  background: radial-gradient(1200px 520px at 85% -10%, rgba(79, 124, 255, .12), transparent 60%),
              radial-gradient(900px 480px at 0% 120%, rgba(255, 138, 61, .10), transparent 60%),
              linear-gradient(180deg, #fdfbfb 0%, #f3f6fc 100%) !important;
  padding-bottom: 80px;
}
.display-4 {
  font-size: clamp(28px, 4.2vw, 44px) !important;
  line-height: 1.25 !important;
  font-weight: 800 !important;
  color: var(--gc-ink-900);
  letter-spacing: -0.02em;
  text-align: left !important;
}
.c117744 {
  background: linear-gradient(135deg, var(--gc-ink-900) 0%, var(--gc-primary) 60%, var(--gc-accent) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.c123884 {
  font-size: 15.5px !important;
  line-height: 1.8 !important;
  color: var(--gc-ink-500) !important;
  font-weight: 400 !important;
}

/* Hero 视觉图 */
.img-wrapper.ratio-16x9 {
  box-shadow: var(--gc-shadow-3) !important;
  border-radius: var(--gc-radius-lg) !important;
  overflow: hidden;
}
.img-wrapper.ratio-16x9 img {
  border-radius: var(--gc-radius-lg);
}

/* ----------- 按钮 ----------- */
.btn {
  border-radius: 999px !important;
  font-weight: 600 !important;
  letter-spacing: 0.01em;
  transition: transform .18s var(--gc-ease), box-shadow .18s var(--gc-ease),
    background-color .18s var(--gc-ease), color .18s var(--gc-ease);
}
.btn-success {
  background: var(--gc-success) !important;
  border-color: var(--gc-success) !important;
  box-shadow: 0 8px 18px rgba(31, 185, 120, .28);
}
.btn-success:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 24px rgba(31, 185, 120, .35);
}
.btn-outline-success {
  color: var(--gc-success) !important;
  border: 2px solid var(--gc-success) !important;
  background: transparent !important;
}
.btn-outline-success:hover {
  background: var(--gc-success) !important; color: #fff !important;
  transform: translateY(-2px);
}
.btn-soft-aqua {
  background: rgba(79, 124, 255, .10) !important;
  color: var(--gc-primary) !important;
  border: 0 !important;
}
.btn-soft-aqua:hover {
  background: var(--gc-primary) !important; color: #fff !important;
  transform: translateY(-2px);
  box-shadow: 0 10px 22px rgba(79, 124, 255, .30);
}

/* ----------- Section 通用 ----------- */
section.section { padding: clamp(56px, 8vw, 112px) 0; }
.section-header h2,
h2.fs-16.text-uppercase,
h2.fs-15.text-uppercase {
  color: var(--gc-primary) !important;
  letter-spacing: .22em !important;
  font-weight: 700 !important;
}
.section-header h3,
.display-3 {
  color: var(--gc-ink-900) !important;
  font-weight: 800 !important;
  letter-spacing: -0.015em;
  font-size: clamp(26px, 3.6vw, 40px) !important;
  line-height: 1.25 !important;
}
hr.w-50.mx-auto {
  border: 0 !important;
  height: 3px !important;
  width: 56px !important;
  background: linear-gradient(90deg, var(--gc-primary), var(--gc-accent)) !important;
  border-radius: 3px !important;
  opacity: 1 !important;
}

/* ----------- 公司卡片 (Hero 下三张) ----------- */
.company-cards .card {
  border-radius: var(--gc-radius) !important;
  overflow: hidden;
  box-shadow: var(--gc-shadow-1) !important;
  border: 1px solid var(--gc-line) !important;
  transition: transform .3s var(--gc-ease), box-shadow .3s var(--gc-ease) !important;
}
.company-cards .card:hover {
  transform: translateY(-6px);
  box-shadow: var(--gc-shadow-2) !important;
}
.company-cards .card-header {
  height: auto !important;
  min-height: 140px;
  padding: 1.6rem 1.2rem !important;
  background-image: linear-gradient(135deg, rgba(255,255,255,0) 0%, rgba(255,255,255,.08) 100%);
}
.company-cards .card-header.bg-primary { background: linear-gradient(135deg, #5b8cff, #3a63e0) !important; }
.company-cards .card-header.bg-success { background: linear-gradient(135deg, #2dc98b, #189860) !important; }
.company-cards .card-header.bg-danger  { background: linear-gradient(135deg, #ff6b78, #d83342) !important; }
.company-cards .card-header h3 {
  font-size: 1.05rem !important;
  line-height: 1.4 !important;
  font-weight: 700 !important;
  color: #fff;
}
.company-cards .card-body {
  min-height: auto !important;
  padding: 1.3rem 1.2rem !important;
  color: var(--gc-ink-700);
  font-size: 14px;
}
.company-cards .card-body p { margin-bottom: .4rem !important; }

/* ----------- IP 介绍区 ----------- */
#section-features figure,
#section-features img.rounded {
  border-radius: var(--gc-radius) !important;
  box-shadow: var(--gc-shadow-2);
}
#section-features h4 {
  font-size: 22px !important;
  color: var(--gc-ink-900);
  font-weight: 700 !important;
  margin-bottom: 12px !important;
}
#section-features p {
  color: var(--gc-ink-500);
  line-height: 1.85;
}

/* ----------- 产品卡 (scj) ----------- */
.projects-masonry .project.item {
  border-radius: var(--gc-radius) !important;
  background: #fff !important;
  border: 1px solid var(--gc-line);
  box-shadow: var(--gc-shadow-1) !important;
  transition: transform .3s var(--gc-ease), box-shadow .3s var(--gc-ease) !important;
}
.projects-masonry .project.item:hover {
  transform: translateY(-8px);
  box-shadow: var(--gc-shadow-3) !important;
}
.projects-masonry .project.item figure {
  margin: 0 !important;
  overflow: hidden;
  border-radius: var(--gc-radius) var(--gc-radius) 0 0 !important;
  aspect-ratio: 16/10;
  background: var(--gc-bg-soft);
}
.projects-masonry .project.item figure img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform .5s var(--gc-ease);
}
.projects-masonry .project.item:hover figure img { transform: scale(1.06); }
.projects-masonry .project-details { padding: 1.25rem 1.4rem !important; }
.projects-masonry .post-title a {
  color: var(--gc-ink-900) !important;
  font-size: 17px !important;
  font-weight: 700 !important;
}
.projects-masonry .post-title a:hover { color: var(--gc-primary) !important; }

/* ----------- 服务卡 ----------- */
#section-services .card {
  border-radius: var(--gc-radius) !important;
  border: 1px solid var(--gc-line) !important;
  box-shadow: var(--gc-shadow-1) !important;
  background: #fff;
  transition: transform .3s var(--gc-ease), box-shadow .3s var(--gc-ease);
  height: 100%;
}
#section-services .card:hover {
  transform: translateY(-6px);
  box-shadow: var(--gc-shadow-2) !important;
}
#section-services .card-body {
  min-height: 230px !important;
  padding: 1.8rem 1.4rem !important;
}
#section-services .icon-svg {
  width: 56px; height: 56px;
  padding: 12px;
  border-radius: 14px;
  background: var(--gc-primary-050);
  margin-bottom: 14px !important;
}
#section-services h4 {
  font-size: 17px !important;
  font-weight: 700 !important;
  color: var(--gc-ink-900);
  margin-bottom: 8px;
}
#section-services p {
  color: var(--gc-ink-500);
  font-size: 14px;
  line-height: 1.7;
}

/* Section 背景 */
.section.bg-gray,
section.bg-gray {
  background: var(--gc-bg-soft) !important;
}

/* ----------- Footer ----------- */
footer.fdb-block {
  padding: 40px 0 !important;
  border-top: 1px solid var(--gc-line);
  background: #fff;
}
footer .nav-item,
footer .nav-item a {
  color: var(--gc-ink-500) !important;
  font-size: 14px;
}
footer .custom-logo { width: 110px !important; height: auto !important; }

/* Scroll-top 按钮 */
.scroll-top {
  width: 44px !important; height: 44px !important;
  border-radius: 50% !important;
  background: var(--gc-primary) !important;
  border: 0 !important;
  box-shadow: 0 8px 20px rgba(79, 124, 255, .4) !important;
  transition: transform .2s var(--gc-ease), box-shadow .2s var(--gc-ease) !important;
  bottom: 32px !important; right: 24px !important;
}
.scroll-top:hover {
  transform: translateY(-3px);
  background: var(--gc-primary-600) !important;
}

/* ----------- 响应式 ----------- */
@media (max-width: 991px) {
  body { padding-top: 64px !important; }
  header.header { padding-top: 40px !important; padding-bottom: 40px; }
  .display-4 { text-align: center !important; }
  header.header .row.align-items-center > div { text-align: center; }
  header.header .gap-xy { justify-content: center; display: flex; gap: 12px; flex-wrap: wrap; }
  .projects-masonry .project-details { padding: 1rem 1.1rem !important; }
}
@media (max-width: 575px) {
  section.section { padding: 56px 0; }
  .section-header h3, .display-3 { font-size: 24px !important; }
  .company-cards .card-header { min-height: auto; padding: 1.1rem !important; }
  .company-cards .card-header h3 { font-size: .95rem !important; }
  #section-services .card-body { min-height: auto !important; }
  .scroll-top { bottom: 20px !important; right: 16px !important; width: 40px !important; height: 40px !important; }
  header.header .c123884 { font-size: 14px !important; }
}

/* ----------- 动效：进入视口淡入 ----------- */
@media (prefers-reduced-motion: no-preference) {
  .card, .project.item, #section-features figure, #section-services .card {
    animation: gcFadeUp .6s var(--gc-ease) both;
  }
  @keyframes gcFadeUp {
    from { opacity: 0; transform: translateY(16px); }
    to   { opacity: 1; transform: translateY(0); }
  }
}

/* ----------- 细节清理 ----------- */
.fdb-block .fdb-box {
  box-shadow: var(--gc-shadow-1) !important;
  border-radius: var(--gc-radius) !important;
}
.progress-list .progressbar.line { background: var(--gc-line) !important; border-radius: 999px; }