/* ==========================================================================
   Sámi Education Institute (SOGSAKK) Theme
   严格对齐 sogsakk.fi 真实设计
   2026-10-12 v1

   真实设计系统 (从 sogsakk.fi 提取):
   - 主色: deep blue  #1F4D8F (深蓝)
   - 强调: red-orange #E94B3C (CTA)
   - 文字:  #1a1a1a on white
   - 字体:  sans-serif
   - 风格: 大图 hero + 4 圆信息卡 + 4 列新闻
   ========================================================================== */

:root {
  --sk-blue:        #1F4D8F;
  --sk-blue-dark:   #173E73;
  --sk-blue-light:  #3B6BB0;
  --sk-red:         #E94B3C;
  --sk-red-dark:    #c83c2e;
  --sk-ink:         #1a1a1a;
  --sk-grey-50:     #f5f7fa;
  --sk-grey-100:    #e5e8ed;
  --sk-grey-700:    #4a5266;
  --sk-white:        #ffffff;
  --sk-sami-green:  #3BAD5F;  /* Sámi cultural accent */

  --sk-font-body:    "Source Sans Pro", "Inter", "Helvetica Neue", -apple-system, "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  --sk-font-heading: var(--sk-font-body);

  --sk-s-xxs: .25rem; --sk-s-xs: .5rem;  --sk-s-s:  1rem;
  --sk-s-m:  1.5rem; --sk-s-l:  2rem;   --sk-s-xl: 2.5rem;
  --sk-s-xxl: 3rem;  --sk-s-xxxl: 4rem;  --sk-s-xxxxl: 5rem;

  --sk-radius:       4px;
  --sk-radius-lg:    8px;
  --sk-t:            200ms ease;
  --sk-container:    1280px;
}

*, *::before, *::after { box-sizing: border-box; }

body {
  margin: 0;
  font-family: var(--sk-font-body);
  font-size: 16px;
  line-height: 1.6;
  color: var(--sk-ink);
  background: var(--sk-white);
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: var(--sk-blue); text-decoration: none; transition: color var(--sk-t); }
a:hover { color: var(--sk-red); text-decoration: underline; }

h1, h2, h3, h4, h5, h6 {
  margin: 0 0 var(--sk-s-s);
  font-family: var(--sk-font-heading);
  font-weight: 700;
  line-height: 1.2;
  color: var(--sk-blue);
}
h1 { font-size: clamp(2rem, 4.5vw, 3rem); }
h2 { font-size: clamp(1.5rem, 3vw, 2.25rem); }
h3 { font-size: 1.25rem; }
p { margin: 0 0 var(--sk-s-s); }


/* ===== Site Header (SOGSAKK 真实: 白底 + logo + 5 个下拉菜单) ===== */
.site-header {
  background: var(--sk-white);
  position: sticky;
  top: 0;
  z-index: 50;
  box-shadow: 0 1px 4px rgba(0,0,0,0.06);
}
.site-header__top {
  background: var(--sk-white);
  border-bottom: 1px solid var(--sk-grey-100);
}
.site-header__top-inner {
  max-width: var(--sk-container);
  margin: 0 auto;
  padding: 1rem var(--sk-s-s);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sk-s-s);
  flex-wrap: wrap;
}
.site-brand {
  display: inline-flex;
  align-items: center;
  text-decoration: none;
  height: 60px;
}
.site-brand__img { height: 56px; width: auto; }
.site-header__top-right {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.site-header__top-link {
  color: var(--sk-blue);
  text-decoration: none;
  font-size: 0.8125rem;
  font-weight: 500;
  padding: 0.4rem 0.75rem;
  border-radius: var(--sk-radius);
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
}
.site-header__top-link:hover { background: var(--sk-grey-50); }
.site-header__top-link::after { content: "▾"; font-size: 0.7em; opacity: 0.5; }
.site-header__main {
  background: var(--sk-white);
  border-top: 1px solid var(--sk-grey-100);
}
.site-header__main-inner {
  max-width: var(--sk-container);
  margin: 0 auto;
  padding: 0.5rem var(--sk-s-s);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sk-s-s);
  flex-wrap: wrap;
}
.site-header__nav {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  flex-wrap: wrap;
}
.site-header__nav-item {
  padding: 0.5rem 0.875rem;
  color: var(--sk-blue) !important;
  text-decoration: none;
  font-weight: 600;
  font-size: 0.9375rem;
  border-radius: var(--sk-radius);
}
.site-header__nav-item:hover { color: var(--sk-red) !important; background: var(--sk-grey-50); }
.site-header__search {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px; height: 40px;
  background: var(--sk-blue);
  color: var(--sk-white);
  border-radius: 50%;
  text-decoration: none;
  font-size: 1rem;
}
.site-header__search:hover { background: var(--sk-red); color: var(--sk-white); }


/* ===== Hero (SOGSAKK 真实: 大图 + 暗蒙版 + 红色 CTA 框) ===== */
.home-hero {
  position: relative;
  min-height: 500px;
  background: var(--sk-blue);
  overflow: hidden;
}
.home-hero__image {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 0;
}
.home-hero__overlay {
  position: relative;
  z-index: 2;
  background: linear-gradient(90deg, rgba(31,77,143,0.85) 0%, rgba(31,77,143,0.6) 50%, transparent 100%);
  color: var(--sk-white);
  padding: var(--sk-s-xxxxl) var(--sk-s-s);
  min-height: 500px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: flex-start;
  max-width: var(--sk-container);
  margin: 0 auto;
}
.home-hero__eyebrow {
  display: inline-block;
  font-size: 0.875rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--sk-red);
  margin: 0 0 var(--sk-s-s);
  padding: 0.4rem 0.875rem;
  background: rgba(0,0,0,0.2);
  border-radius: var(--sk-radius);
}
.home-hero__title {
  font-family: var(--sk-font-heading);
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  font-weight: 700;
  line-height: 1.2;
  color: var(--sk-white);
  margin: 0 0 var(--sk-s-s);
  max-width: 32rem;
}
.home-hero__sub {
  font-size: 1rem;
  color: rgba(255,255,255,0.92);
  margin: 0 0 var(--sk-s-l);
  max-width: 28rem;
  line-height: 1.5;
}
.home-hero__actions { display: flex; gap: var(--sk-s-s); flex-wrap: wrap; }


/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  font-family: var(--sk-font-body);
  font-size: 0.9375rem;
  font-weight: 700;
  border-radius: var(--sk-radius);
  border: 1.5px solid transparent;
  cursor: pointer;
  transition: all var(--sk-t);
  text-decoration: none;
  line-height: 1.2;
}
.btn--primary {
  background: var(--sk-red);
  color: var(--sk-white);
  border-color: var(--sk-red);
}
.btn--primary:hover { background: var(--sk-red-dark); border-color: var(--sk-red-dark); color: var(--sk-white); text-decoration: none; }
.btn--secondary {
  background: var(--sk-blue);
  color: var(--sk-white);
  border-color: var(--sk-blue);
}
.btn--secondary:hover { background: var(--sk-blue-dark); border-color: var(--sk-blue-dark); color: var(--sk-white); text-decoration: none; }
.btn--outline {
  background: transparent;
  color: var(--sk-blue);
  border-color: var(--sk-blue);
}
.btn--outline:hover { background: var(--sk-blue); color: var(--sk-white); text-decoration: none; }


/* ===== Sections ===== */
.section {
  width: 100%;
  padding: var(--sk-s-xxxxl) var(--sk-s-s);
}
.section--white { background: var(--sk-white); }
.section--grey { background: var(--sk-grey-50); }
.section--blue { background: var(--sk-blue); color: var(--sk-white); }
.section--blue h1, .section--blue h2, .section--blue h3 { color: var(--sk-white); }
.section__container { max-width: var(--sk-container); margin: 0 auto; }
.section__head { margin-bottom: var(--sk-s-xl); }
.section__head--center { text-align: center; }
.section__title {
  font-size: clamp(1.5rem, 3vw, 2.25rem);
  font-weight: 700;
  color: var(--sk-blue);
  margin: 0 0 var(--sk-s-s);
}
.section--blue .section__title { color: var(--sk-white); }
.section__sub {
  font-size: 1.0625rem;
  color: var(--sk-grey-700);
  max-width: 48rem;
  margin: 0;
}
.section--blue .section__sub { color: rgba(255,255,255,0.88); }


/* ===== 4 圆信息卡 (SOGSAKK 真实: 图标圆 + 标题 + 描述) ===== */
.info-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--sk-s-m);
  max-width: var(--sk-container);
  margin: 0 auto;
  padding: 0 var(--sk-s-s);
}
.info-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  background: var(--sk-blue);
  color: var(--sk-white);
  padding: var(--sk-s-l);
  text-decoration: none;
  transition: background var(--sk-t);
  border-radius: 0;
}
.info-card:hover { background: var(--sk-blue-dark); color: var(--sk-white); text-decoration: none; }
.info-card__icon {
  width: 64px; height: 64px;
  border: 2px solid rgba(255,255,255,0.5);
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--sk-white);
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: var(--sk-s-s);
}
.info-card__title {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--sk-white);
  margin: 0 0 0.25rem;
  line-height: 1.3;
}
.info-card__cta {
  font-size: 0.875rem;
  color: rgba(255,255,255,0.85);
  font-weight: 500;
  margin: 0;
}


/* ===== 介绍段 (蓝色背景) ===== */
.intro-section {
  background: var(--sk-blue);
  color: var(--sk-white);
  padding: var(--sk-s-xxl) var(--sk-s-s);
}
.intro-section__inner {
  max-width: 56rem;
  margin: 0 auto;
  text-align: center;
}
.intro-section h2 { color: var(--sk-white); margin-bottom: var(--sk-s-m); }
.intro-section p { font-size: 1.0625rem; color: rgba(255,255,255,0.92); margin: 0; line-height: 1.6; }


/* ===== 10 领域卡片 (SOGSAKK 真实: 浅蓝网格) ===== */
.field-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: var(--sk-s-s);
  max-width: var(--sk-container);
  margin: 0 auto;
  padding: 0 var(--sk-s-s);
}
.field-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  background: var(--sk-blue);
  color: var(--sk-white);
  padding: var(--sk-s-l) var(--sk-s-s);
  text-decoration: none;
  transition: background var(--sk-t);
}
.field-card:hover { background: var(--sk-blue-dark); color: var(--sk-white); text-decoration: none; }
.field-card__icon {
  width: 48px; height: 48px;
  background: rgba(255,255,255,0.15);
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
}
.field-card__title {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--sk-white);
  margin: 0;
  line-height: 1.3;
}


/* ===== News 4 列 ===== */
.news-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--sk-s-m);
  max-width: var(--sk-container);
  margin: 0 auto;
  padding: 0 var(--sk-s-s);
}
.news-card {
  display: flex;
  flex-direction: column;
  text-decoration: none;
  color: var(--sk-ink);
  background: var(--sk-white);
  border: 1px solid var(--sk-grey-100);
  transition: transform var(--sk-t);
}
.news-card:hover { transform: translateY(-2px); color: var(--sk-ink); text-decoration: none; }
.news-card__media {
  width: 100%;
  aspect-ratio: 16/10;
  object-fit: cover;
  background: var(--sk-grey-50);
}
.news-card__body { padding: var(--sk-s-m); flex: 1; display: flex; flex-direction: column; }
.news-card__date {
  font-size: 0.75rem;
  color: var(--sk-red);
  font-weight: 700;
  margin: 0 0 0.5rem;
}
.news-card__title {
  font-family: var(--sk-font-heading);
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--sk-blue);
  line-height: 1.3;
  margin: 0 0 var(--sk-s-s);
}
.news-card__excerpt {
  font-size: 0.875rem;
  color: var(--sk-grey-700);
  line-height: 1.5;
  margin: 0 0 var(--sk-s-s);
  flex: 1;
}
.news-card__cta {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--sk-blue);
  text-decoration: underline;
  margin-top: auto;
}


/* ===== Page Hero (内页) ===== */
.page-hero {
  background: var(--sk-blue);
  color: var(--sk-white);
  padding: var(--sk-s-xl) var(--sk-s-s);
}
.page-hero__container { max-width: var(--sk-container); margin: 0 auto; }
.page-hero__breadcrumb {
  font-size: 0.875rem;
  color: rgba(255,255,255,0.85);
  margin: 0 0 var(--sk-s-s);
}
.page-hero__breadcrumb a { color: var(--sk-white); }
.page-hero__title {
  font-family: var(--sk-font-heading);
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  font-weight: 700;
  color: var(--sk-white);
  margin: 0 0 var(--sk-s-s);
}
.page-hero__sub {
  font-size: 1.0625rem;
  color: rgba(255,255,255,0.88);
  max-width: 48rem;
  margin: 0;
}


/* ===== Content (prose) ===== */
.page-content {
  max-width: var(--sk-container);
  margin: 0 auto;
  padding: var(--sk-s-xxxxl) var(--sk-s-s);
}
.prose {
  max-width: 56rem;
  font-size: 1.0625rem;
  line-height: 1.7;
  color: var(--sk-ink);
}
.prose h2 {
  font-size: 1.625rem;
  color: var(--sk-blue);
  margin: var(--sk-s-xl) 0 var(--sk-s-s);
  border-bottom: 3px solid var(--sk-red);
  padding-bottom: 0.5rem;
  display: inline-block;
}
.prose h3 { font-size: 1.25rem; color: var(--sk-blue); margin: var(--sk-s-l) 0 var(--sk-s-xs); }
.prose a { color: var(--sk-blue); text-decoration: underline; }
.prose blockquote {
  border-left: 4px solid var(--sk-red);
  padding: 0.5rem var(--sk-s-m);
  margin: var(--sk-s-m) 0;
  background: var(--sk-grey-50);
  font-style: italic;
}


/* ===== Footer (深蓝 + 4 列) ===== */
.site-footer {
  background: var(--sk-blue-dark);
  color: var(--sk-white);
  padding: var(--sk-s-xxxxl) var(--sk-s-s) var(--sk-s-l);
}
.site-footer__grid {
  max-width: var(--sk-container);
  margin: 0 auto var(--sk-s-xl);
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--sk-s-l);
}
.site-footer__col h4 {
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--sk-red);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin: 0 0 var(--sk-s-s);
}
.site-footer__col p {
  font-size: 0.875rem;
  color: rgba(255,255,255,0.85);
  margin: 0 0 var(--sk-s-xs);
  line-height: 1.5;
}
.site-footer__col ul { list-style: none; padding: 0; margin: 0; }
.site-footer__col li { margin: 0 0 var(--sk-s-xs); }
.site-footer__col a {
  color: rgba(255,255,255,0.85);
  text-decoration: none;
  font-size: 0.875rem;
}
.site-footer__col a:hover { color: var(--sk-red); text-decoration: underline; }
.site-footer__network {
  max-width: var(--sk-container);
  margin: 0 auto var(--sk-s-l);
  padding: var(--sk-s-m) 0;
  border-top: 1px solid rgba(255,255,255,0.15);
  border-bottom: 1px solid rgba(255,255,255,0.15);
}
.site-footer__network-label {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  color: rgba(255,255,255,0.6);
  letter-spacing: 0.1em;
  margin: 0 0 var(--sk-s-xs);
}
.site-footer__network ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: var(--sk-s-xs) var(--sk-s-m);
}
.site-footer__network a {
  color: rgba(255,255,255,0.85);
  text-decoration: none;
  font-size: 0.8125rem;
}
.site-footer__network a:hover { color: var(--sk-red); text-decoration: underline; }
.site-footer__bottom {
  max-width: var(--sk-container);
  margin: 0 auto;
  padding-top: var(--sk-s-l);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: var(--sk-s-s);
  font-size: 0.8125rem;
  color: rgba(255,255,255,0.7);
}
.site-footer__bottom a { color: rgba(255,255,255,0.85); text-decoration: underline; }


/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .info-grid, .field-grid, .news-grid { grid-template-columns: repeat(2, 1fr); }
  .site-footer__grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
  .site-header__top-inner, .site-header__main-inner { flex-direction: column; align-items: flex-start; gap: 0.5rem; }
  .info-grid, .field-grid, .news-grid, .site-footer__grid { grid-template-columns: 1fr; }
  .section { padding: var(--sk-s-xl) var(--sk-s-s); }
  .home-hero__overlay { padding: var(--sk-s-l) var(--sk-s-s); }
  .home-hero__title { font-size: 1.75rem; }
}