/* ==========================================================================
   钦泓国际科技 — 主样式
   设计基调沿用 PPT：近黑底 + 青色主调 + 紫罗兰辅调
   布局参考宇树科技官网：固定深色导航 + 全幅首屏轮播
   ========================================================================== */

:root {
  --bg:         #030305;
  --bg-alt:     #09090f;
  --bg-card:    #0d0d18;
  --line:       #1e1e2c;
  --line-soft:  #16161f;

  --ink:        #ffffff;
  --ink-2:      #d4d4d8;
  --ink-3:      #a1a1aa;
  --ink-4:      #52525b;

  --cyan:       #22d3ee;
  --cyan-deep:  #06b6d4;
  --cyan-light: #67e8f9;
  --violet:     #7c3aed;
  --violet-lt:  #9a58ff;

  --header-h:   68px;
  --wrap:       1240px;

  --ease: cubic-bezier(.22, .61, .36, 1);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-h);
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink-2);
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB",
               "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.75;
  letter-spacing: .01em;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 { margin: 0; color: var(--ink); font-weight: 600; line-height: 1.3; }
p  { margin: 0 0 1em; }
p:last-child { margin-bottom: 0; }
ul, ol { margin: 0; padding: 0; list-style: none; }
a { color: inherit; text-decoration: none; }
strong { color: var(--ink); font-weight: 600; }

::selection { background: var(--cyan); color: #04121a; }

:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
  border-radius: 3px;
}

.skip-link {
  position: absolute; left: -9999px; top: 0; z-index: 999;
  padding: 10px 18px; background: var(--cyan); color: #04121a; font-weight: 600;
}
.skip-link:focus { left: 12px; top: 12px; }

.wrap {
  width: 100%;
  max-width: var(--wrap);
  margin-inline: auto;
  padding-inline: 32px;
}
.wrap--narrow { max-width: 880px; }

/* ==========================================================================
   顶部导航
   ========================================================================== */

.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 100;
  height: var(--header-h);
  background: rgba(6, 6, 12, .55);
  backdrop-filter: saturate(160%) blur(14px);
  -webkit-backdrop-filter: saturate(160%) blur(14px);
  border-bottom: 1px solid transparent;
  transition: background .35s var(--ease), border-color .35s var(--ease);
}
.site-header.is-stuck {
  background: rgba(6, 6, 12, .94);
  border-bottom-color: var(--line-soft);
}

.header-inner {
  max-width: var(--wrap);
  height: 100%;
  margin-inline: auto;
  padding-inline: 32px;
  display: flex;
  align-items: center;
  gap: 32px;
}

.brand { display: flex; align-items: baseline; gap: 8px; flex-shrink: 0; }
.brand-mark {
  font-size: 22px;
  font-weight: 700;
  letter-spacing: .14em;
  color: var(--ink);
  font-family: "Helvetica Neue", Arial, sans-serif;
}
.brand-slash {
  color: var(--cyan);
  margin-inline: 1px;
  font-weight: 400;
}
.brand-sub {
  font-size: 12px;
  color: var(--ink-3);
  letter-spacing: .22em;
}

.nav { flex: 1; min-width: 0; }
.nav-list {
  display: flex;
  align-items: center;
  gap: 4px;
  justify-content: center;
}
.nav-list a {
  display: block;
  position: relative;
  padding: 8px 13px;
  font-size: 14.5px;
  color: var(--ink-2);
  white-space: nowrap;
  transition: color .2s var(--ease);
}
.nav-list a::after {
  content: "";
  position: absolute;
  left: 13px; right: 13px; bottom: 2px;
  height: 1.5px;
  background: var(--cyan);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .3s var(--ease);
}
.nav-list a:hover { color: var(--ink); }
.nav-list a:hover::after,
.nav-list a.is-active::after { transform: scaleX(1); }
.nav-list a.is-active { color: var(--ink); }

.nav-list a.is-soon { color: var(--ink-4); cursor: default; }
.nav-list a.is-soon::after { display: none; }
.nav-list a.is-soon:hover { color: var(--ink-3); }
.nav-list a.is-soon::before {
  content: "即将上线";
  position: absolute;
  left: 50%; top: calc(100% + 6px);
  transform: translateX(-50%) translateY(-4px);
  padding: 3px 8px;
  font-size: 11px;
  letter-spacing: .05em;
  color: var(--ink-3);
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: 4px;
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity .2s var(--ease), transform .2s var(--ease);
}
.nav-list a.is-soon:hover::before { opacity: 1; transform: translateX(-50%) translateY(0); }

.header-actions { display: flex; align-items: center; gap: 14px; flex-shrink: 0; }

.icon-btn {
  display: grid; place-items: center;
  width: 34px; height: 34px;
  padding: 0;
  background: none; border: 0; cursor: pointer;
  color: var(--ink-2);
  transition: color .2s var(--ease);
}
.icon-btn:hover { color: var(--cyan); }
.icon-btn svg { width: 19px; height: 19px; fill: none; stroke: currentColor; stroke-width: 1.7; stroke-linecap: round; }

.btn-cta {
  display: inline-block;
  padding: 9px 22px;
  font-size: 14.5px;
  font-weight: 600;
  color: #04121a;
  background: linear-gradient(100deg, var(--cyan-light), var(--cyan-deep));
  border-radius: 999px;
  white-space: nowrap;
  transition: transform .25s var(--ease), box-shadow .25s var(--ease);
}
.btn-cta:hover {
  transform: translateY(-1px);
  box-shadow: 0 8px 26px -8px rgba(34, 211, 238, .65);
}

.menu-btn {
  display: none;
  flex-direction: column; justify-content: center; gap: 5px;
  width: 34px; height: 34px;
  padding: 0; background: none; border: 0; cursor: pointer;
}
.menu-btn span {
  display: block; height: 1.6px; width: 20px; margin-inline: auto;
  background: var(--ink);
  transition: transform .3s var(--ease), opacity .2s var(--ease);
}
.menu-btn[aria-expanded="true"] span:nth-child(1) { transform: translateY(6.6px) rotate(45deg); }
.menu-btn[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.menu-btn[aria-expanded="true"] span:nth-child(3) { transform: translateY(-6.6px) rotate(-45deg); }

/* ==========================================================================
   首屏轮播
   ========================================================================== */

.hero {
  position: relative;
  height: 100vh;
  min-height: 620px;
  overflow: hidden;
  background: var(--bg);
}
.hero-track { position: absolute; inset: 0; }

.hero-slide {
  position: absolute;
  inset: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  align-content: center;
  opacity: 0;
  transition: opacity .9s var(--ease);
}
.hero-slide.is-current { opacity: 1; z-index: 2; }
.hero-slide[hidden] { display: none; }

.hero-bg {
  position: absolute; inset: 0;
  background-size: cover;
  background-position: center;
  transform: scale(1.06);
  transition: transform 8s linear;
}
.hero-slide.is-current .hero-bg { transform: scale(1); }
.hero-bg::after {
  content: "";
  position: absolute; inset: 0;
  background:
    radial-gradient(ellipse 70% 55% at 50% 45%, rgba(3,3,5,.30), transparent 70%),
    linear-gradient(180deg, rgba(3,3,5,.62) 0%, rgba(3,3,5,.18) 34%, rgba(3,3,5,.72) 100%);
}

.hero-body {
  position: relative;
  z-index: 2;
  width: 100%;
  min-width: 0;
  max-width: 1000px;
  margin-inline: auto;
  padding: var(--header-h) 40px 0;
  text-align: center;
}

.hero-kicker {
  margin-bottom: 22px;
  font-size: 12.5px;
  letter-spacing: .3em;
  color: var(--cyan-light);
  text-transform: uppercase;
}

.hero-title {
  margin-bottom: 20px;
  font-size: clamp(30px, 5.2vw, 62px);
  font-weight: 700;
  letter-spacing: .02em;
  line-height: 1.24;
  color: #fff;
  text-shadow: 0 2px 34px rgba(0, 0, 0, .6);
}
.hero-dot { color: var(--cyan); margin-inline: .32em; font-weight: 400; }

.hero-lead {
  margin: 0 auto 32px;
  max-width: 640px;
  font-size: clamp(14px, 1.5vw, 17px);
  color: rgba(255, 255, 255, .84);
  text-shadow: 0 1px 16px rgba(0, 0, 0, .6);
}

.hero-more {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 16px;
  color: var(--cyan-light);
  border-bottom: 1px solid transparent;
  padding-bottom: 2px;
  transition: color .25s var(--ease), border-color .25s var(--ease), gap .25s var(--ease);
}
.hero-more:hover {
  color: #fff;
  border-bottom-color: var(--cyan);
  gap: 13px;
}

/* 浅色底图上的深色文字变体 */
.hero-body.is-dark-text .hero-kicker { color: #a1240f; }
.hero-body.is-dark-text .hero-title  { color: #2a0d06; text-shadow: 0 2px 22px rgba(255,255,255,.5); }
.hero-body.is-dark-text .hero-dot    { color: #c62b12; }
.hero-body.is-dark-text .hero-lead   { color: #4a1b0c; text-shadow: 0 1px 12px rgba(255,255,255,.6); }
.hero-body.is-dark-text .hero-more   { color: #a1240f; }
.hero-body.is-dark-text .hero-more:hover { color: #2a0d06; border-bottom-color: #c62b12; }
/* 该张底图为浅色，压暗层需减弱 */
.hero-slide[data-index="1"] .hero-bg::after {
  background: linear-gradient(180deg, rgba(255,250,235,.30) 0%, rgba(255,250,235,.05) 40%, rgba(120,40,15,.22) 100%);
}

.hero-arrow {
  position: absolute;
  top: 50%;
  z-index: 5;
  display: grid; place-items: center;
  width: 52px; height: 52px;
  margin-top: -26px;
  background: rgba(0, 0, 0, .22);
  border: 1px solid rgba(255, 255, 255, .18);
  border-radius: 50%;
  color: rgba(255, 255, 255, .85);
  cursor: pointer;
  transition: background .25s var(--ease), color .25s var(--ease),
              border-color .25s var(--ease), transform .25s var(--ease);
}
.hero-arrow--prev { left: 28px; }
.hero-arrow--next { right: 28px; }
.hero-arrow:hover {
  background: rgba(34, 211, 238, .9);
  border-color: transparent;
  color: #04121a;
  transform: scale(1.06);
}
.hero-arrow svg { width: 24px; height: 24px; fill: none; stroke: currentColor; stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; }

.hero-dots {
  position: absolute;
  left: 50%; bottom: 52px;
  z-index: 5;
  transform: translateX(-50%);
  display: flex;
  gap: 10px;
}
.hero-dots button {
  width: 34px; height: 3px;
  padding: 0;
  background: rgba(255, 255, 255, .32);
  border: 0; border-radius: 2px;
  cursor: pointer;
  transition: background .3s var(--ease), width .3s var(--ease);
}
.hero-dots button.is-current { background: var(--cyan); width: 54px; }

.hero-note {
  position: absolute;
  left: 32px; bottom: 22px;
  z-index: 5;
  margin: 0;
  font-size: 12px;
  color: rgba(255, 255, 255, .5);
  text-shadow: 0 1px 6px rgba(0, 0, 0, .55);
}

/* ==========================================================================
   区块通用
   ========================================================================== */

.section { padding: 104px 0; }
.section--alt { background: var(--bg-alt); border-block: 1px solid var(--line-soft); }

.sec-head { max-width: 760px; margin-bottom: 56px; }
.sec-head--center { max-width: 820px; margin-inline: auto; text-align: center; }

.sec-eyebrow {
  margin-bottom: 14px;
  font-size: 12px;
  letter-spacing: .24em;
  color: var(--cyan);
  text-transform: uppercase;
}
.sec-title {
  margin-bottom: 16px;
  font-size: clamp(26px, 3.4vw, 40px);
  letter-spacing: .03em;
}
.sec-desc { font-size: 16px; color: var(--ink-3); margin: 0; }

/* ==========================================================================
   卡片
   ========================================================================== */

.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 26px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }

.card {
  position: relative;
  padding: 40px 36px;
  background:
    linear-gradient(155deg, rgba(34,211,238,.045), transparent 42%),
    var(--bg-card);
  border: 1px solid var(--line);
  border-radius: 4px;
  overflow: hidden;
  transition: border-color .3s var(--ease), transform .3s var(--ease);
}
.card::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 2px;
  background: linear-gradient(180deg, var(--cyan), var(--violet));
  transform: scaleY(0);
  transform-origin: top;
  transition: transform .45s var(--ease);
}
.card:hover { border-color: #2b2b3d; transform: translateY(-3px); }
.card:hover::before { transform: scaleY(1); }

.card--sm { padding: 34px 30px; }

.card-idx {
  margin-bottom: 10px;
  font-size: 13px;
  letter-spacing: .2em;
  color: var(--violet-lt);
  font-weight: 600;
}
.card-eyebrow {
  margin-bottom: 12px;
  font-size: 11.5px;
  letter-spacing: .2em;
  color: var(--cyan);
  text-transform: uppercase;
}
.card-title {
  margin-bottom: 20px;
  font-size: 21px;
  letter-spacing: .04em;
}

/* 链式关系 */
.chain { margin: 26px 0; display: grid; gap: 10px; }
.chain li {
  display: flex; align-items: center; gap: 12px;
  font-size: 14.5px;
  color: var(--ink-2);
}
.chain li span {
  padding: 5px 14px;
  background: rgba(34, 211, 238, .07);
  border: 1px solid rgba(34, 211, 238, .2);
  border-radius: 3px;
}
.chain li i { color: var(--cyan); font-style: normal; }

.quote {
  margin: 26px 0 0;
  padding: 16px 20px;
  font-size: 15px;
  color: var(--cyan-light);
  background: rgba(124, 58, 237, .07);
  border-left: 2px solid var(--violet);
  border-radius: 0 3px 3px 0;
}

.mission-slogan {
  margin-bottom: 24px;
  font-size: clamp(24px, 2.8vw, 34px);
  font-weight: 700;
  line-height: 1.4;
  letter-spacing: .04em;
  background: linear-gradient(100deg, var(--cyan-light), var(--violet-lt));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.loop {
  margin-top: 28px;
  padding: 20px;
  border: 1px dashed var(--line);
  border-radius: 4px;
}
.loop-label {
  margin-bottom: 14px;
  font-size: 12px;
  letter-spacing: .22em;
  color: var(--ink-4);
}
.loop-flow { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; }
.loop-flow span {
  padding: 6px 16px;
  font-size: 14px;
  color: var(--ink);
  background: linear-gradient(120deg, rgba(34,211,238,.14), rgba(124,58,237,.14));
  border-radius: 999px;
}
.loop-flow i { color: var(--cyan); font-style: normal; }

/* ==========================================================================
   数据见证
   ========================================================================== */

.stats {
  margin-top: 26px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: 4px;
  overflow: hidden;
}
.stat {
  padding: 36px 28px;
  background: var(--bg-card);
  transition: background .3s var(--ease);
}
.stat:hover { background: #12121f; }
.stat-num {
  margin-bottom: 6px;
  font-size: 44px;
  font-weight: 700;
  line-height: 1;
  letter-spacing: -.01em;
  background: linear-gradient(100deg, var(--cyan-light), var(--cyan-deep));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.stat-unit {
  margin-left: 6px;
  font-size: 15px;
  font-weight: 500;
  letter-spacing: .06em;
  -webkit-text-fill-color: var(--ink-3);
}
.stat-key {
  margin-bottom: 10px;
  font-size: 15px;
  font-weight: 600;
  color: var(--ink);
  letter-spacing: .1em;
}
.stat-txt { margin: 0; font-size: 13.5px; line-height: 1.7; color: var(--ink-3); }

/* ==========================================================================
   国家战略
   ========================================================================== */

.policy {
  margin: 0;
  padding: 44px 46px;
  background:
    linear-gradient(150deg, rgba(198, 43, 18, .1), transparent 55%),
    var(--bg-card);
  border: 1px solid var(--line);
  border-left: 3px solid #c62b12;
  border-radius: 0 4px 4px 0;
  font-size: 16.5px;
  line-height: 1.95;
}
.policy-doc {
  margin-bottom: 22px;
  font-size: 19px;
  font-weight: 600;
  color: var(--ink);
  letter-spacing: .04em;
}
.policy-src {
  margin-top: 26px;
  padding-top: 18px;
  border-top: 1px solid var(--line-soft);
  font-size: 13px;
  color: var(--ink-4);
}

/* ==========================================================================
   核心优势内部件
   ========================================================================== */

.mini-stats { margin: 26px 0; display: flex; gap: 40px; }
.mini-stats div { display: flex; flex-direction: column; gap: 2px; }
.mini-stats b {
  font-size: 30px;
  font-weight: 700;
  line-height: 1.1;
  color: var(--cyan);
}
.mini-stats span { font-size: 13px; color: var(--ink-3); letter-spacing: .1em; }

.partners { display: grid; gap: 14px; }
.partners li {
  padding: 20px 22px;
  background: rgba(255, 255, 255, .02);
  border: 1px solid var(--line-soft);
  border-radius: 3px;
}
.partner-tag {
  margin-bottom: 8px;
  font-size: 10.5px;
  letter-spacing: .2em;
  color: var(--violet-lt);
}
.partner-name { margin-bottom: 2px; font-size: 17px; font-weight: 600; color: var(--ink); letter-spacing: .06em; }
.partner-en { margin-bottom: 10px; font-size: 11px; letter-spacing: .18em; color: var(--ink-4); }
.partner-txt { margin: 0; font-size: 13.5px; color: var(--ink-3); }

.method-slogan {
  margin-bottom: 18px;
  font-size: 26px;
  font-weight: 700;
  letter-spacing: .1em;
  color: var(--cyan-light);
}

.steps { counter-reset: st; display: grid; gap: 20px; }
.steps li {
  counter-increment: st;
  position: relative;
  padding-left: 44px;
  font-size: 14.5px;
  color: var(--ink-3);
}
.steps li::before {
  content: "0" counter(st);
  position: absolute;
  left: 0; top: 1px;
  width: 30px; height: 30px;
  display: grid; place-items: center;
  font-size: 12px;
  font-weight: 700;
  color: var(--cyan);
  background: rgba(34, 211, 238, .09);
  border: 1px solid rgba(34, 211, 238, .25);
  border-radius: 50%;
}
.steps li p { margin: 0 0 4px; }
.step-key { color: var(--ink) !important; font-weight: 600; font-size: 15px; }

.steps--compact { margin-top: 26px; }
.steps--tight { gap: 15px; margin: 20px 0; }
.steps--tight li { font-size: 13.5px; line-height: 1.7; }
.steps--tight b { display: block; color: var(--ink); font-size: 14.5px; font-weight: 600; margin-bottom: 2px; }

.tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 22px; }
.tags li {
  padding: 5px 13px;
  font-size: 12.5px;
  color: var(--cyan-light);
  background: rgba(34, 211, 238, .07);
  border: 1px solid rgba(34, 211, 238, .2);
  border-radius: 999px;
}

/* ==========================================================================
   创始人
   ========================================================================== */

.founder {
  display: grid;
  grid-template-columns: minmax(0, 340px) minmax(0, 1fr);
  gap: 0;
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: 4px;
  overflow: hidden;
}
.founder-id {
  padding: 46px 40px;
  background: linear-gradient(155deg, rgba(124, 58, 237, .16), rgba(34, 211, 238, .06));
  border-right: 1px solid var(--line);
}
.founder-name {
  margin-bottom: 12px;
  font-size: 34px;
  font-weight: 700;
  letter-spacing: .1em;
  color: var(--ink);
}
.founder-name span { font-size: 17px; font-weight: 500; color: var(--cyan); letter-spacing: .06em; }
.founder-role { margin-bottom: 8px; font-size: 15px; color: var(--cyan-light); }
.founder-edu { margin: 0; font-size: 13.5px; color: var(--ink-3); }

.founder-facts { padding: 46px 40px; display: grid; gap: 14px; align-content: center; }
.founder-facts li {
  position: relative;
  padding-left: 22px;
  font-size: 15px;
  color: var(--ink-2);
}
.founder-facts li::before {
  content: "";
  position: absolute;
  left: 0; top: .68em;
  width: 7px; height: 7px;
  background: var(--cyan);
  transform: rotate(45deg);
}

/* ==========================================================================
   业务版图
   ========================================================================== */

.reach-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: 4px;
  overflow: hidden;
}
.reach-grid li {
  position: relative;
  padding: 38px 28px 34px;
  background: var(--bg-card);
  overflow: hidden;
  transition: background .3s var(--ease);
}
.reach-grid li::after {
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  height: 2px;
  background: linear-gradient(90deg, var(--cyan), var(--violet));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .4s var(--ease);
}
.reach-grid li:hover { background: #12121f; }
.reach-grid li:hover::after { transform: scaleX(1); }

.reach-idx {
  display: block;
  margin-bottom: 16px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .2em;
  color: var(--ink-4);
}
.reach-grid h3 { margin-bottom: 6px; font-size: 19px; letter-spacing: .06em; }
.reach-grid p { margin: 0; font-size: 13.5px; color: var(--ink-3); }

/* ==========================================================================
   FAQ
   ========================================================================== */

.faq { display: grid; gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: 4px; overflow: hidden; }
.faq details { background: var(--bg-card); }
.faq summary {
  padding: 22px 26px;
  font-size: 16.5px;
  font-weight: 600;
  color: var(--ink);
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  gap: 14px;
  transition: color .2s var(--ease);
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::before {
  content: "";
  flex-shrink: 0;
  width: 9px; height: 9px;
  border-right: 1.8px solid var(--cyan);
  border-bottom: 1.8px solid var(--cyan);
  transform: rotate(-45deg);
  transition: transform .3s var(--ease);
}
.faq details[open] summary::before { transform: rotate(45deg); }
.faq summary:hover { color: var(--cyan-light); }
.faq details p {
  margin: 0;
  padding: 0 26px 24px 49px;
  font-size: 15px;
  color: var(--ink-3);
}

/* ==========================================================================
   联系 & 页脚
   ========================================================================== */

.section--contact {
  background:
    radial-gradient(ellipse 60% 80% at 50% 0%, rgba(124, 58, 237, .14), transparent 70%),
    var(--bg);
  border-top: 1px solid var(--line-soft);
}

.contact-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 26px;
  text-align: center;
}
.contact-grid li {
  padding: 32px 20px;
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: 4px;
  transition: border-color .3s var(--ease), transform .3s var(--ease);
}
.contact-grid li:hover { border-color: rgba(34, 211, 238, .4); transform: translateY(-3px); }
.contact-label {
  margin-bottom: 12px;
  font-size: 12.5px;
  letter-spacing: .2em;
  color: var(--ink-4);
}
.contact-val {
  display: block;
  margin: 0;
  font-size: 17px;
  font-weight: 600;
  color: var(--cyan-light);
  word-break: break-word;
  transition: color .2s var(--ease);
}
a.contact-val:hover { color: #fff; }

.site-footer {
  padding: 48px 0 40px;
  background: var(--bg-alt);
  border-top: 1px solid var(--line-soft);
}
.footer-inner {
  display: grid;
  gap: 26px;
  justify-items: center;
  text-align: center;
}
.footer-brand p { margin: 8px 0 0; font-size: 13.5px; color: var(--ink-3); }
.footer-nav { display: flex; flex-wrap: wrap; justify-content: center; gap: 8px 26px; }
.footer-nav a { font-size: 14px; color: var(--ink-3); transition: color .2s var(--ease); }
.footer-nav a:hover { color: var(--cyan); }
.footer-copy { margin: 0; font-size: 12.5px; letter-spacing: .08em; color: var(--ink-4); }

/* ==========================================================================
   响应式
   ========================================================================== */

@media (max-width: 1080px) {
  .stats, .reach-grid { grid-template-columns: repeat(2, 1fr); }
  .contact-grid { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: 1fr; }
}

@media (max-width: 900px) {
  :root { --header-h: 60px; }
  .header-inner, .wrap { padding-inline: 20px; }

  .menu-btn { display: flex; }
  .icon-btn { display: none; }

  .nav {
    position: fixed;
    inset: var(--header-h) 0 auto 0;
    flex: none;
    background: rgba(6, 6, 12, .98);
    backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--line-soft);
    max-height: 0;
    overflow: hidden;
    transition: max-height .4s var(--ease);
  }
  .nav.is-open { max-height: 70vh; overflow-y: auto; }
  .nav-list { flex-direction: column; align-items: stretch; gap: 0; padding: 10px 20px 22px; }
  .nav-list a { padding: 14px 4px; font-size: 16px; border-bottom: 1px solid var(--line-soft); }
  .nav-list a::after, .nav-list a.is-soon::before { display: none; }
  .nav-list a.is-soon::after { content: "即将上线"; display: block; float: right; font-size: 11px; color: var(--ink-4); transform: none; background: none; height: auto; }

  .grid-2, .founder { grid-template-columns: 1fr; }
  .founder-id { border-right: 0; border-bottom: 1px solid var(--line); }
  .section { padding: 72px 0; }
  .sec-head { margin-bottom: 40px; }
  .card { padding: 30px 24px; }
  .policy { padding: 32px 26px; font-size: 15.5px; }
  .founder-id, .founder-facts { padding: 34px 26px; }

  .hero { height: 88vh; min-height: 540px; }
  .hero-body { padding-inline: 70px; }
  .hero-title { font-size: clamp(24px, 6.4vw, 40px); }
  .hero-arrow { width: 40px; height: 40px; margin-top: -20px; }
  .hero-arrow--prev { left: 8px; }
  .hero-arrow--next { right: 8px; }
  .hero-dots { bottom: 44px; }
  .hero-note { left: 20px; right: 20px; font-size: 11px; }
  .mini-stats { gap: 28px; }
}

@media (max-width: 560px) {
  .stats, .reach-grid, .contact-grid { grid-template-columns: 1fr; }
  .brand-sub { display: none; }
  .btn-cta { padding: 8px 16px; font-size: 13.5px; }
  .stat-num { font-size: 36px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .01ms !important;
    transition-duration: .01ms !important;
  }
  .hero-bg { transform: none !important; }
}

/* ==========================================================================
   培训课程页
   ========================================================================== */

/* ---------- 页面头图 ---------- */
.page-hero {
  position: relative;
  padding: calc(var(--header-h) + 76px) 0 76px;
  overflow: hidden;
  background: var(--bg);
}
.page-hero-bg {
  position: absolute; inset: 0;
  background-size: cover;
  background-position: center 35%;
}
.page-hero-bg::after {
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(3,3,5,.86) 0%, rgba(3,3,5,.62) 45%, rgba(3,3,5,.94) 100%);
}
.page-hero-body { position: relative; z-index: 2; }

.crumb { display: flex; align-items: center; gap: 10px; margin-bottom: 22px; font-size: 13px; color: var(--ink-4); }
.crumb a { color: var(--ink-3); transition: color .2s var(--ease); }
.crumb a:hover { color: var(--cyan); }
.crumb span[aria-current] { color: var(--ink-2); }

.page-hero-title {
  margin-bottom: 14px;
  font-size: clamp(30px, 4.6vw, 52px);
  font-weight: 700;
  letter-spacing: .04em;
  text-shadow: 0 2px 30px rgba(0,0,0,.6);
}
.page-hero-lead {
  max-width: 640px;
  margin-bottom: 32px;
  font-size: clamp(14.5px, 1.5vw, 17px);
  color: rgba(255,255,255,.82);
}
.page-hero-cta { display: flex; flex-wrap: wrap; align-items: center; gap: 16px; }

/* ---------- 按钮 ---------- */
.btn-solid {
  display: inline-block;
  padding: 12px 30px;
  font-size: 15px;
  font-weight: 600;
  color: #04121a;
  background: linear-gradient(100deg, var(--cyan-light), var(--cyan-deep));
  border-radius: 999px;
  transition: transform .25s var(--ease), box-shadow .25s var(--ease);
}
.btn-solid:hover { transform: translateY(-1px); box-shadow: 0 10px 28px -8px rgba(34,211,238,.6); }
.btn-block { display: block; width: 100%; text-align: center; }

.btn-ghost {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 12px 4px;
  font-size: 15px;
  color: var(--cyan-light);
  border-bottom: 1px solid transparent;
  transition: color .2s var(--ease), border-color .2s var(--ease), gap .2s var(--ease);
}
.btn-ghost:hover { color: #fff; border-bottom-color: var(--cyan); gap: 13px; }

/* ---------- 课程卡 ---------- */
.course-list { display: grid; gap: 26px; }

.course {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 288px;
  background:
    linear-gradient(140deg, rgba(34,211,238,.045), transparent 40%),
    var(--bg-card);
  border: 1px solid var(--line);
  border-radius: 4px;
  overflow: hidden;
  transition: border-color .3s var(--ease);
}
.course:hover { border-color: #2b2b3d; }
.course--flag { border-color: rgba(34,211,238,.34); }

.course-main { padding: 40px 36px; }

.course-tag {
  display: flex; align-items: center; gap: 12px;
  margin-bottom: 12px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .22em;
  color: var(--violet-lt);
}
.course-flag {
  padding: 3px 10px;
  font-size: 11px;
  font-style: normal;
  font-weight: 600;
  letter-spacing: .08em;
  color: #04121a;
  background: var(--cyan);
  border-radius: 3px;
}

.course-title { margin-bottom: 8px; font-size: clamp(23px, 2.5vw, 30px); letter-spacing: .05em; }
.course-sub { margin-bottom: 28px; font-size: 15.5px; color: var(--cyan-light); letter-spacing: .04em; }

.course-mod-label {
  margin-bottom: 16px;
  padding-left: 12px;
  border-left: 2px solid var(--cyan);
  font-size: 13px;
  letter-spacing: .14em;
  color: var(--ink-3);
}
.course-mods { display: grid; gap: 11px; }
.course-mods li {
  display: flex;
  align-items: baseline;
  gap: 14px;
  font-size: 15.5px;
  color: var(--ink-2);
}
.course-mods li span {
  flex-shrink: 0;
  min-width: 26px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .08em;
  color: var(--ink-4);
}
.course-extra { margin-top: 24px; font-size: 14px; color: var(--ink-3); }
.course-extra a { color: var(--cyan); border-bottom: 1px solid rgba(34,211,238,.4); }
.course-extra a:hover { color: var(--cyan-light); }

/* ---------- 价格区 ---------- */
.course-price {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 4px;
  padding: 36px 30px;
  text-align: center;
  background: linear-gradient(180deg, rgba(124,58,237,.12), rgba(34,211,238,.05));
  border-left: 1px solid var(--line);
}
.price-badge {
  margin-bottom: 14px;
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: .16em;
  color: var(--cyan-light);
}
.price-orig { margin-bottom: 2px; font-size: 13.5px; color: var(--ink-4); }
.price-orig s { color: var(--ink-4); }
.price-now {
  margin-bottom: 8px;
  font-size: 46px;
  font-weight: 700;
  line-height: 1;
  letter-spacing: -.01em;
  color: var(--ink);
}
.price-cur { margin-right: 3px; font-size: 22px; font-weight: 600; color: var(--cyan); vertical-align: 6px; }
.price-save {
  margin-bottom: 22px;
  font-size: 12.5px;
  color: var(--cyan);
  letter-spacing: .04em;
}
.price-note { margin-top: 12px; margin-bottom: 0; font-size: 11.5px; color: var(--ink-4); }

/* ---------- 小字免责 ---------- */
.fineprint {
  margin-top: 26px;
  font-size: 12.5px;
  line-height: 1.8;
  color: var(--ink-4);
}
.fineprint--center { text-align: center; max-width: 620px; margin-inline: auto; }

/* ---------- 案例 ---------- */
.case {
  display: grid;
  grid-template-rows: auto 1fr;
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: 4px;
  overflow: hidden;
  transition: border-color .3s var(--ease), transform .3s var(--ease);
}
.case:hover { border-color: #2b2b3d; transform: translateY(-3px); }
.case--wide { margin-top: 26px; grid-template-rows: auto; }

.case-shot {
  margin: 0;
  padding: 26px 26px 0;
  background: linear-gradient(180deg, rgba(124,58,237,.1), transparent);
}
.case-shot img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 11;
  object-fit: cover;
  object-position: center top;
  border-radius: 4px 4px 0 0;
  border: 1px solid var(--line);
  border-bottom: 0;
}
.case-body { padding: 28px 30px 32px; }
.case-tag {
  margin-bottom: 10px;
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: .18em;
  color: var(--violet-lt);
}
.case-title { margin-bottom: 12px; font-size: 20px; letter-spacing: .04em; }
.case-body p { font-size: 14.5px; color: var(--ink-3); }
.case-link { color: var(--cyan); border-bottom: 1px solid rgba(34,211,238,.4); }
.case-link:hover { color: var(--cyan-light); }

.vs { display: grid; gap: 14px; margin: 24px 0 0; }
.vs > div { display: grid; gap: 6px; }
.vs dt { font-size: 11.5px; letter-spacing: .16em; color: var(--ink-4); }
.vs dd { margin: 0; display: flex; flex-wrap: wrap; align-items: baseline; gap: 12px; }
.vs dd b {
  font-size: 26px;
  font-weight: 700;
  line-height: 1;
  background: linear-gradient(100deg, var(--cyan-light), var(--cyan-deep));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.vs dd i {
  font-style: normal;
  font-size: 11.5px;
  letter-spacing: .14em;
  color: var(--ink-4);
  text-transform: uppercase;
}
.vs dd span { font-size: 18px; color: var(--ink-3); text-decoration: line-through; text-decoration-color: var(--ink-4); }

/* 投入 → 回报：右侧是正向数字，不加删除线 */
.vs dd.is-gain i { color: var(--cyan); }
.vs dd.is-gain span {
  font-size: 22px;
  font-weight: 700;
  color: var(--cyan-light);
  text-decoration: none;
}

/* ---------- 开课安排 ---------- */
.schedule {
  display: grid;
  grid-template-columns: 220px minmax(0, 1fr);
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: 4px;
  overflow: hidden;
}
.schedule-date {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2px;
  padding: 44px 24px;
  background: linear-gradient(160deg, rgba(34,211,238,.18), rgba(124,58,237,.12));
  border-right: 1px solid var(--line);
}
.sched-month { margin: 0; font-size: 20px; font-weight: 600; color: var(--cyan-light); letter-spacing: .1em; }
.sched-month span { font-size: 14px; margin-left: 2px; }
.sched-day { margin: 0; font-size: 68px; font-weight: 700; line-height: 1; color: #fff; }
.sched-week { margin: 6px 0 0; font-size: 13.5px; letter-spacing: .18em; color: var(--ink-3); }

.schedule-info { padding: 40px 38px; }
.sched-list { display: grid; gap: 0; margin: 0 0 28px; }
.sched-list > div {
  display: grid;
  grid-template-columns: 92px minmax(0, 1fr);
  gap: 16px;
  padding: 13px 0;
  border-bottom: 1px solid var(--line-soft);
}
.sched-list > div:first-child { padding-top: 0; }
.sched-list dt { font-size: 13.5px; letter-spacing: .12em; color: var(--ink-4); }
.sched-list dd { margin: 0; font-size: 15.5px; color: var(--ink-2); }
.sched-list dd a { color: var(--cyan-light); }
.sched-list dd a:hover { color: #fff; }
.sched-list dd s { margin-left: 8px; font-size: 14px; color: var(--ink-4); }
.sched-list dd em { margin-left: 8px; font-size: 12.5px; font-style: normal; color: var(--cyan); }
.sched-price { font-size: 22px; font-weight: 700; color: var(--cyan-light); }

.notice {
  margin-bottom: 28px;
  padding: 18px 22px;
  background: rgba(255, 176, 32, .07);
  border: 1px solid rgba(255, 176, 32, .28);
  border-radius: 4px;
}
.notice-title { margin-bottom: 6px; font-size: 14px; font-weight: 600; color: #ffc45c; }
.notice p:last-child { margin: 0; font-size: 14.5px; color: var(--ink-2); }
.notice strong { color: #ffd489; }

/* ---------- 响应式 ---------- */
@media (max-width: 1080px) {
  .course { grid-template-columns: 1fr; }
  .course-price {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    gap: 4px 26px;
    padding: 26px 30px;
    text-align: left;
    border-left: 0;
    border-top: 1px solid var(--line);
  }
  .price-badge { grid-column: 1 / -1; margin: 0 0 8px; }
  .price-orig  { grid-column: 1; grid-row: 2; margin: 0; }
  .price-now   { grid-column: 1; grid-row: 3; margin: 0; }
  .price-save  { grid-column: 1; grid-row: 4; margin: 4px 0 0; }
  .course-price .btn-solid { grid-column: 2; grid-row: 2 / 5; align-self: center; width: auto; }
  .price-note  { grid-column: 1 / -1; margin: 12px 0 0; }
}

@media (max-width: 900px) {
  .page-hero { padding: calc(var(--header-h) + 52px) 0 56px; }
  .course-main { padding: 30px 24px; }
  .course-price { padding: 24px; }
  .schedule { grid-template-columns: 1fr; }
  .schedule-date { border-right: 0; border-bottom: 1px solid var(--line); padding: 30px 24px; flex-direction: row; align-items: baseline; gap: 12px; }
  .sched-day { font-size: 46px; }
  .sched-week { margin: 0; }
  .schedule-info { padding: 30px 24px; }
  .sched-list > div { grid-template-columns: 1fr; gap: 4px; }
  .case-body { padding: 24px; }
  .case-shot { padding: 20px 20px 0; }
}

@media (max-width: 560px) {
  .course-price { grid-template-columns: 1fr; text-align: center; gap: 2px; }
  .price-orig, .price-now, .price-save { grid-column: 1; }
  .course-price .btn-solid { grid-column: 1; grid-row: auto; width: 100%; margin-top: 16px; }
  .price-now { font-size: 38px; }
}

/* ==========================================================================
   AI 成果展示 · 钦泓国际五子棋
   ========================================================================== */
.nav-feature { color: var(--cyan-light) !important; }
.nav-feature::after { background: var(--cyan-light) !important; }
.nav-feature--warm { color: #ffd07d !important; }
.nav-feature--warm::after { background: #ffb85d !important; }
.nav-feature-dot {
  display: inline-block;
  width: 6px;
  height: 6px;
  margin: 0 7px 1px 0;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 0 4px rgba(34, 211, 238, .1);
  vertical-align: middle;
}

.showcase-section {
  overflow: hidden;
  background:
    radial-gradient(ellipse 70% 90% at 90% 50%, rgba(34, 211, 238, .1), transparent 70%),
    linear-gradient(135deg, #07080d 0%, #0a0e16 100%);
  border-block: 1px solid var(--line);
}
.showcase-shell {
  display: grid;
  grid-template-columns: minmax(0, .82fr) minmax(420px, 1.18fr);
  gap: clamp(42px, 7vw, 96px);
  align-items: center;
  padding: clamp(32px, 5vw, 62px);
  border: 1px solid rgba(103, 232, 249, .2);
  background: linear-gradient(135deg, rgba(16, 31, 42, .86), rgba(7, 11, 18, .78));
  box-shadow: 0 32px 90px rgba(0, 0, 0, .22), inset 0 1px rgba(255, 255, 255, .05);
}
.showcase-copy .sec-title { margin-bottom: 18px; }
.showcase-copy .sec-desc { max-width: 480px; margin-bottom: 25px; }
.showcase-points { display: flex; flex-wrap: wrap; gap: 10px 18px; margin-bottom: 30px; }
.showcase-points span { display: inline-flex; align-items: center; gap: 8px; color: var(--ink-3); font-size: 13px; }
.showcase-points i { font-style: normal; font-family: "DM Mono", monospace; font-size: 10px; color: var(--cyan); }
.showcase-cta {
  display: inline-flex;
  align-items: center;
  gap: 18px;
  padding: 12px 19px;
  border: 1px solid rgba(103, 232, 249, .5);
  color: #06131a;
  background: linear-gradient(100deg, var(--cyan-light), var(--cyan-deep));
  font-size: 14px;
  font-weight: 600;
  transition: transform .25s var(--ease), box-shadow .25s var(--ease);
}
.showcase-cta span { font-size: 18px; line-height: 1; }
.showcase-cta:hover { transform: translateY(-2px); box-shadow: 0 12px 28px rgba(34, 211, 238, .24); }
.showcase-preview {
  display: block;
  padding: 18px 18px 16px;
  border: 1px solid rgba(126, 220, 233, .25);
  color: var(--ink);
  background: rgba(2, 7, 11, .7);
  box-shadow: 0 20px 52px rgba(0, 0, 0, .32);
  transform: rotate(1deg);
  transition: transform .35s var(--ease), border-color .35s var(--ease), box-shadow .35s var(--ease);
}
.showcase-preview:hover { border-color: rgba(103, 232, 249, .65); box-shadow: 0 28px 65px rgba(0, 0, 0, .44); transform: rotate(0) translateY(-5px); }
.showcase-preview-top, .showcase-preview-bottom { display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.showcase-preview-top { padding-bottom: 14px; color: var(--ink-4); font-family: "DM Mono", monospace; font-size: 9px; letter-spacing: .12em; }
.showcase-live { color: var(--cyan); }
.showcase-live i { display: inline-block; width: 5px; height: 5px; margin: 0 5px 1px 0; border-radius: 50%; background: var(--cyan); box-shadow: 0 0 0 3px rgba(34, 211, 238, .1); }
.showcase-mini-board {
  position: relative;
  aspect-ratio: 1.55;
  overflow: hidden;
  border: 1px solid rgba(205, 157, 88, .48);
  background-color: #bd864d;
  background-image:
    linear-gradient(rgba(235, 194, 132, .11), rgba(235, 194, 132, .11)),
    repeating-linear-gradient(0deg, transparent 0 9.05%, rgba(67, 39, 20, .48) 9.12% 9.34%, transparent 9.4% 10%),
    repeating-linear-gradient(90deg, transparent 0 6.17%, rgba(67, 39, 20, .48) 6.24% 6.45%, transparent 6.52% 6.67%);
  box-shadow: inset 0 0 30px rgba(65, 34, 13, .25);
}
.showcase-mini-board::before { position: absolute; inset: 26% 38%; border: 3px solid rgba(72, 39, 18, .48); border-radius: 50%; content: ""; }
.mini-stone { position: absolute; display: block; width: 7.2%; aspect-ratio: 1; border-radius: 50%; transform: translate(-50%, -50%); box-shadow: 2px 4px 7px rgba(41, 22, 10, .38); }
.mini-stone--black { background: radial-gradient(circle at 30% 25%, #72807b, #16211e 55%, #050a08); }
.mini-stone--white { border: 1px solid rgba(111, 111, 96, .45); background: radial-gradient(circle at 30% 25%, #fff, #e7e6dc 60%, #afb2a9); }
.showcase-preview-bottom { padding-top: 15px; }
.showcase-preview-bottom strong { font-size: 15px; letter-spacing: .02em; }
.showcase-preview-bottom span { color: var(--cyan); font-family: "DM Mono", monospace; font-size: 9px; letter-spacing: .12em; }
.showcase-preview-bottom b { margin-left: 4px; font-size: 14px; font-weight: 400; }
.showcase-yefire {
  display: grid;
  grid-template-columns: minmax(250px, .7fr) minmax(0, 1.3fr);
  gap: 28px;
  margin-top: 28px;
  padding: clamp(24px, 4vw, 38px);
  border: 1px solid rgba(255, 183, 92, .25);
  background:
    radial-gradient(circle at 86% 18%, rgba(255, 154, 68, .16), transparent 36%),
    linear-gradient(135deg, rgba(40, 26, 24, .92), rgba(10, 15, 21, .9));
  box-shadow: 0 26px 70px rgba(0, 0, 0, .2), inset 0 1px rgba(255, 255, 255, .05);
}
.showcase-yefire-kicker { margin: 0 0 14px; color: #ffb85d; font-family: "DM Mono", monospace; font-size: 10px; letter-spacing: .14em; }
.showcase-yefire h3 { margin: 0 0 12px; font-size: clamp(21px, 2.4vw, 30px); letter-spacing: -.02em; }
.showcase-yefire-copy > p:not(.showcase-yefire-kicker) { max-width: 440px; margin: 0 0 22px; color: var(--ink-3); font-size: 14px; line-height: 1.9; }
.showcase-cta--warm { border-color: rgba(255, 184, 93, .55); background: linear-gradient(100deg, #ffd07d, #f39b4c); }
.showcase-cta--warm:hover { box-shadow: 0 12px 28px rgba(255, 159, 74, .24); }
.showcase-yefire-features { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
.showcase-yefire-features > a { display: flex; min-height: 176px; flex-direction: column; padding: 20px; border: 1px solid rgba(255, 255, 255, .1); color: var(--ink); background: rgba(3, 8, 13, .48); transition: transform .3s var(--ease), border-color .3s var(--ease), background .3s var(--ease); }
.showcase-yefire-features > a:hover { transform: translateY(-3px); border-color: rgba(255, 194, 109, .62); background: rgba(12, 20, 26, .78); }
.showcase-feature-index { margin-bottom: 21px; color: #ffb85d; font-family: "DM Mono", monospace; font-size: 10px; letter-spacing: .12em; }
.showcase-yefire-features strong { margin-bottom: 9px; font-size: 17px; }
.showcase-yefire-features small { min-height: 44px; color: var(--ink-4); font-size: 12px; line-height: 1.7; }
.showcase-yefire-features b { margin-top: auto; color: #ffd07d; font-family: "DM Mono", monospace; font-size: 9px; font-weight: 500; letter-spacing: .1em; }
.showcase-yefire-features b span { margin-left: 5px; font-size: 13px; }
.seo-training-home { background: linear-gradient(145deg, #080b14, #101126); border-block: 1px solid var(--line-soft); }
.seo-training-home-shell { display: grid; grid-template-columns: minmax(0, .84fr) minmax(420px, 1.16fr); gap: 34px; align-items: stretch; padding: clamp(30px, 5vw, 54px); border: 1px solid rgba(103,232,249,.2); background: radial-gradient(circle at 90% 18%, rgba(124,58,237,.16), transparent 36%), rgba(8, 12, 22, .76); }
.seo-training-home-copy .sec-title { margin-bottom: 16px; }
.seo-training-home-copy .sec-desc { max-width: 520px; margin-bottom: 24px; }
.seo-training-home-points { display: flex; flex-wrap: wrap; gap: 10px 18px; margin-bottom: 28px; }
.seo-training-home-points span { display: inline-flex; align-items: center; gap: 8px; color: var(--ink-3); font-size: 13px; }
.seo-training-home-points i { color: var(--cyan); font-family: "DM Mono", monospace; font-size: 10px; font-style: normal; }
.seo-training-home-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 20px; }
.seo-training-text-link { color: var(--cyan-light); font-size: 13px; }
.seo-training-text-link:hover { color: #fff; }
.seo-training-home-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.seo-training-home-grid a { display: flex; min-height: 220px; flex-direction: column; padding: 20px 18px; border: 1px solid rgba(149,185,196,.16); background: rgba(2,7,11,.58); transition: transform .3s var(--ease), border-color .3s var(--ease), background .3s var(--ease); }
.seo-training-home-grid a:hover { transform: translateY(-4px); border-color: rgba(103,232,249,.55); background: rgba(8,17,26,.86); }
.seo-training-home-grid span { color: var(--cyan); font-family: "DM Mono", monospace; font-size: 9px; letter-spacing: .11em; }
.seo-training-home-grid strong { margin: 24px 0 10px; color: var(--ink); font-size: 16px; }
.seo-training-home-grid small { margin-top: auto; color: var(--ink-4); font-size: 12px; line-height: 1.7; }
.home-insights-section { background: #070910; }
.home-insights-shell { display: grid; grid-template-columns: minmax(0, 1fr) minmax(320px, .7fr); gap: 28px; align-items: stretch; }
.home-insights-copy { padding: 30px 0; }
.home-insights-copy .sec-title { max-width: 620px; margin-bottom: 16px; }
.home-insights-copy .sec-desc { max-width: 590px; margin-bottom: 25px; }
.home-insight-card { display: flex; min-height: 270px; flex-direction: column; padding: 28px; border: 1px solid rgba(244,189,104,.28); background: radial-gradient(circle at 82% 16%, rgba(244,189,104,.13), transparent 40%), linear-gradient(145deg, rgba(31,24,26,.9), rgba(8,13,20,.9)); }
.home-insight-card > p { margin-bottom: 28px; color: #f4bd68; font-family: "DM Mono", monospace; font-size: 9px; letter-spacing: .11em; }
.home-insight-card h3 { margin-bottom: 10px; color: var(--ink); font-size: 22px; line-height: 1.45; }
.home-insight-card h3 a:hover { color: #ffd07d; }
.home-insight-card > span { color: var(--ink-3); font-size: 13px; line-height: 1.8; }
.home-insight-read { margin-top: auto; padding-top: 26px; color: #ffd07d; font-family: "DM Mono", monospace; font-size: 10px; letter-spacing: .1em; }

@media (max-width: 900px) {
  .showcase-shell { grid-template-columns: 1fr; gap: 38px; }
  .showcase-copy .sec-desc { max-width: 650px; }
  .showcase-preview { width: min(100%, 640px); justify-self: center; }
  .showcase-yefire { grid-template-columns: 1fr; }
  .seo-training-home-shell, .home-insights-shell { grid-template-columns: 1fr; }
}

@media (max-width: 560px) {
  .showcase-shell { padding: 28px 20px; }
  .showcase-points { display: grid; gap: 9px; }
  .showcase-preview { padding: 13px 13px 12px; }
  .showcase-preview-bottom strong { font-size: 12px; }
  .showcase-yefire { padding: 22px 18px; }
  .showcase-yefire-features { grid-template-columns: 1fr; }
  .seo-training-home-shell { padding: 25px 19px; }
  .seo-training-home-grid { grid-template-columns: 1fr; }
  .seo-training-home-grid a { min-height: 150px; }
  .home-insights-copy { padding: 0 0 12px; }
  .home-insight-card { min-height: 230px; padding: 22px; }
}

/* Showcase layout fix: keep the Yefire feature card across the full shell width. */
.showcase-yefire { grid-column: 1 / -1; min-width: 0; }
.showcase-yefire-copy,
.showcase-yefire-features { min-width: 0; }
@media (max-width: 900px) { .showcase-yefire { grid-column: 1; } }