/* 首页 v3 样式：首屏 / 四条能力 / 五段链路 / AIGC 八格 / 五步 / 行业 / 合作伙伴 / 城市 / 收尾
   规则（DESIGN-v3 §4）：文字与图位分属不同网格行；装 HTML 的舞台不设 overflow:hidden；图位比例与文件一致。 */

/* ================================================================
   4.1 首屏
   ================================================================ */
.h-hero { position: relative; overflow: clip; background: var(--s0); }
.h-hero::after {
  content: ''; position: absolute; left: 50%; bottom: -30%; width: 80vw; height: 60vw; transform: translateX(-50%);
  background: radial-gradient(closest-side, var(--glow-indigo), transparent 70%); pointer-events: none;
}
.h-hero__grid { position: relative; z-index: 1; display: grid; gap: var(--sp-7); align-items: center; padding-block: clamp(32px, 5vw, 64px) var(--sp-8); min-height: min(100svh, 860px); }
.h-hero__copy { display: grid; gap: var(--sp-4); align-content: center; }
.h-hero__title { font-size: var(--fs-display); line-height: var(--lh-display); letter-spacing: -.03em; max-width: 16ch; }
.h-hero__title .c-em { color: var(--t-accent); font-style: normal; }
.h-hero__lead { font-size: var(--fs-lead); color: var(--t2); max-width: 40ch; }
.h-hero__actions { display: flex; flex-wrap: wrap; gap: var(--sp-3); }
.h-hero__facts { display: grid; grid-template-columns: repeat(4, minmax(0, auto)); gap: var(--sp-4) var(--sp-6); justify-content: start; padding-top: var(--sp-5); border-top: 1px solid var(--line-1); }
.h-hero__stage { position: relative; display: grid; gap: 12px; min-width: 0; }
.h-hero__frame {
  position: relative; border: 1px solid var(--line-1); border-radius: var(--r-lg); overflow: hidden;
  aspect-ratio: 1.49 / 1.08; background: radial-gradient(120% 90% at 70% 30%, rgba(28, 33, 136, .22), transparent 65%);
}
.h-hero__still, .h-hero__canvas { position: absolute; inset: 0; width: 100%; height: 100%; }
.h-hero__still { padding: 6%; }
.h-hero.is-live .h-hero__canvas { display: block; }
.h-hero.is-live .h-hero__still { visibility: hidden; }
.h-hero__canvas { display: none; touch-action: pan-y; }
.h-hero__bar { display: flex; align-items: center; justify-content: space-between; gap: var(--sp-3); flex-wrap: wrap; }
.m-film__chapters { display: flex; gap: 4px; flex-wrap: wrap; }
.m-film__ch {
  display: inline-flex; align-items: center; gap: 6px; padding: 6px 10px; border-radius: var(--r-pill);
  font: 500 var(--fs-micro) / 1.2 var(--font-display); color: var(--t3); border: 1px solid transparent;
}
.m-film__ch:hover { color: var(--t1); background: var(--s2); }
.m-film__ch[aria-pressed="true"] { color: var(--t1); border-color: var(--line-2); background: var(--s2); }
.m-film__ch .u-mono { color: var(--t4); font-size: .92em; }

@media (min-width: 1024px) {
  .h-hero__grid { grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: clamp(32px, 4vw, 64px); }
}
@media (max-width: 1023px) {
  .h-hero__grid { grid-template-columns: 1fr; min-height: 0; padding-block: var(--sp-6) var(--sp-7); }
  .h-hero__stage { order: -1; }
  .h-hero__frame { aspect-ratio: 1.49 / 1.08; max-height: 52svh; margin-inline: auto; width: min(100%, 620px); }
  .h-hero__title { max-width: none; }
  .h-hero__facts { grid-template-columns: repeat(2, minmax(0, 1fr)); justify-content: stretch; }
}
@media (max-width: 767px) {
  .h-hero__frame { max-height: 40svh; }
  .h-hero__actions .c-btn { flex: 1 1 46%; }
}

/* ================================================================
   4.2 四条能力：四线汇流
   ================================================================ */
.h-caps__grid { display: grid; gap: var(--gap); grid-template-columns: 1fr; }
.h-caps__col { display: grid; gap: var(--gap); align-content: center; }
.h-caps__card { display: grid; gap: 8px; align-content: start; }
.h-caps__num { font: 500 var(--fs-micro) / 1 var(--font-mono); color: var(--t4); }
.h-caps__line { font-size: var(--fs-small); color: var(--t2); }
.h-caps__more { margin-top: 4px; }
.h-caps__center { display: none; position: relative; place-items: center; }
.h-caps__glyph { width: 100%; max-width: 420px; }
.h-caps__wire { display: none; }
.h-caps__card.is-active { border-color: var(--blue-lift); }
.h-caps__card.is-active::before { opacity: .8; }
@media (min-width: 1024px) {
  .h-caps__grid { grid-template-columns: minmax(0, 4fr) minmax(0, 4fr) minmax(0, 4fr); align-items: stretch; }
  .h-caps__center { display: grid; }
  .h-caps__wire { display: block; position: absolute; top: 50%; width: clamp(20px, 3vw, 48px); height: 1.5px; background: var(--g-wire); }
  .h-caps__wire--l { left: 0; }
  .h-caps__wire--r { right: 0; }
}

/* ================================================================
   4.3 五段链路
   ================================================================ */
.h-chain__figure { margin-block: var(--sp-4) var(--sp-6); }
.h-chain__svg { width: 100%; max-width: 1080px; max-height: 200px; margin-inline: auto; }
.h-chain__steps { display: grid; gap: var(--sp-5); }
.h-chain__step { display: grid; gap: 6px; border-top: 1px solid var(--line-1); padding-top: var(--sp-3); }
.h-chain__num { font: 500 var(--fs-micro) / 1 var(--font-mono); color: var(--t4); }
.h-chain__desc { font-size: var(--fs-small); color: var(--t2); }
@media (min-width: 768px) { .h-chain__steps { grid-template-columns: repeat(5, minmax(0, 1fr)); gap: var(--gap); } }

/* ================================================================
   4.4 AIGC 八格
   ================================================================ */
.h-aigc__grid { display: grid; gap: var(--gap); grid-template-columns: 1fr; }
.h-tile__title { font-size: var(--fs-h4); }
.h-aigc .c-tile__stage { min-height: 0; }

/* 文本：写作台（样式在 components.css · C2x 演示）；输出面板撑满格子剩余高度 */
.h-ui { display: grid; gap: 10px; }
.h-tile--text .c-tile__stage { align-content: stretch; }

/* 图像 */
.h-ui__prompt { padding: 8px 10px; border-radius: var(--r-xs); background: var(--s3); border: 1px solid var(--line-1); font-size: var(--fs-micro); color: var(--t2); overflow-wrap: anywhere; }

/* 漫画：4 格 */
.h-ui__panels { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; }
.h-ui__panels .c-slot { border-radius: var(--r-xs); }

/* 视频：封面 + 分镜时间线见 components.css「C2x 演示」 */

/* IP 卡 */
.h-ui__card { padding: 12px; border-radius: var(--r-sm); background: var(--s3); border: 1px solid var(--line-2); display: grid; gap: 8px; }
.h-ui__who { font: 600 var(--fs-h4) / 1.3 var(--font-display); }
.h-ui__quote { font-size: var(--fs-small); color: var(--t2); }

/* 小游戏 / 数字产品：手机框里的可玩演示见 components.css「C2x 演示」 */

@media (min-width: 768px) { .h-aigc__grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (min-width: 1024px) {
  .h-aigc__grid { grid-template-columns: repeat(12, minmax(0, 1fr)); }
  .h-tile--text { grid-column: span 4; }
  .h-tile--image { grid-column: span 4; }
  .h-tile--comic { grid-column: span 4; }
  .h-tile--video { grid-column: span 8; }
  .h-tile--minigame { grid-column: span 4; }
  .h-tile--ip { grid-column: span 4; }
  .h-tile--digitalProduct { grid-column: span 4; }
  .h-tile--webDesign { grid-column: span 4; }
}
@media (max-width: 479px) { .h-ui__panels { grid-template-columns: 1fr; } }

/* ================================================================
   4.5 五步
   ================================================================ */
.h-steps__grid { display: grid; gap: var(--sp-7); }
.h-steps__figure { display: none; }
@media (min-width: 1024px) {
  .h-steps__grid { grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: var(--sp-8); }
  .h-steps__figure { display: block; position: sticky; top: calc(var(--header-h) + 32px); align-self: start; }
  .h-steps__svg { width: 100%; max-width: 520px; }
}
@media (min-width: 768px) and (max-width: 1023px) { .h-steps__figure { display: block; } .h-steps__svg { width: 70%; margin-inline: auto; } }

/* ================================================================
   4.6 12 行业
   ================================================================ */
.h-ind__grid { display: grid; gap: var(--gap); grid-template-columns: 1fr; }
.h-ind__card { display: grid; grid-template-columns: auto minmax(0, 1fr) auto; align-items: baseline; gap: 4px 12px; }
.h-ind__num { font: 500 var(--fs-micro) / 1 var(--font-mono); color: var(--t4); }
.h-ind__name { font: 600 var(--fs-h4) / 1.3 var(--font-display); color: var(--t1); }
.h-ind__tags { grid-column: 2 / -1; font-size: var(--fs-micro); color: var(--t3); }
.h-ind__card:hover .h-ind__name { color: var(--t-accent); }
@media (min-width: 560px) { .h-ind__grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (min-width: 768px) { .h-ind__grid { grid-template-columns: repeat(3, minmax(0, 1fr)); } }
@media (min-width: 1280px) { .h-ind__grid { grid-template-columns: repeat(4, minmax(0, 1fr)); } }

/* ================================================================
   4.7 合作伙伴
   ================================================================ */
.h-partners__counts { display: flex; flex-wrap: wrap; gap: 6px 14px; font-size: var(--fs-micro); color: var(--t3); }
.h-partners__counts b { color: var(--t1); }
.h-partners__sub { margin-bottom: var(--sp-4); font: 500 var(--fs-micro) / 1.4 var(--font-text); color: var(--t3); letter-spacing: .04em; }
.h-partners__grid { display: grid; gap: var(--gap); grid-template-columns: repeat(2, minmax(0, 1fr)); margin-bottom: var(--sp-7); }
.h-partners__legal { margin-top: var(--sp-5); }
@media (min-width: 768px) { .h-partners__grid { grid-template-columns: repeat(4, minmax(0, 1fr)); } }
@media (min-width: 1024px) { .h-partners__grid { grid-template-columns: repeat(4, minmax(0, 1fr)); } }

/* ================================================================
   4.8 城市
   ================================================================ */
.h-cities__grid { display: grid; gap: var(--sp-6); }
.h-cities__left { display: grid; gap: var(--sp-5); align-content: start; }
.h-cities__figure { display: none; }
.h-cities__tabs { margin-bottom: 0; }
.h-cities__right { display: grid; gap: var(--sp-4); }
.h-cities__panel .c-slot__cap { margin-top: 10px; }
@media (min-width: 1024px) {
  .h-cities__grid { grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); align-items: start; }
  .h-cities__figure { display: block; }
  .h-cities__svg { width: 100%; max-width: 520px; }
}
@media (min-width: 768px) and (max-width: 1023px) { .h-cities__figure { display: block; } .h-cities__svg { width: 60%; margin-inline: auto; } }
@media (max-width: 767px) { .h-cities__tabs { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); } }