:root {
  color-scheme: light;
  --ink: #111316;
  --muted: #5f6672;
  --paper: #fbfaf7;
  --paper-strong: #fbfaf7;
  --line: rgba(17, 19, 22, 0.12);
  --shadow: 0 20px 70px rgba(17, 19, 22, 0.12);
  --mobi-slate: #4e5963;
  --mobi-charcoal: #252630;
  --mobi-mist: #e7ecec;
  --mobi-ice: #a9bbc3;
  --mobi-gold: #b9935a;
  --toro-cloud: #f3efe7;
  --toro-champagne: #d6be8a;
  --toro-honey: #b88a63;
  --morandi-olive: #6e7a5b;
  --morandi-violet: #85779d;
  --morandi-teal: #5e7c83;
  --morandi-emerald: #526f63;
  --teal: var(--morandi-teal);
  --violet: var(--morandi-violet);
  --purple: #a493b8;
  --orange: var(--toro-honey);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background:
    linear-gradient(180deg, rgba(251, 250, 247, 0.88), rgba(243, 239, 231, 0.94)),
    radial-gradient(circle at 16% 18%, rgba(184, 138, 99, 0.12), transparent 30%),
    radial-gradient(circle at 80% 24%, rgba(94, 124, 131, 0.12), transparent 28%),
    var(--paper);
  font-family:
    -apple-system,
    BlinkMacSystemFont,
    "PingFang SC",
    "Hiragino Sans GB",
    "Microsoft YaHei",
    Arial,
    sans-serif;
  line-height: 1.55;
  letter-spacing: 0;
  overflow-x: hidden;
}

a {
  color: inherit;
  text-decoration: none;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

button {
  font: inherit;
}

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 16px clamp(18px, 4vw, 54px);
  color: var(--paper);
  background: linear-gradient(180deg, rgba(17, 19, 22, 0.74), rgba(17, 19, 22, 0));
}

.brand-mark,
.desktop-nav,
.language-switch,
.nav-action {
  border: 1px solid rgba(251, 250, 247, 0.22);
  background: rgba(17, 19, 22, 0.46);
  -webkit-backdrop-filter: blur(18px);
  backdrop-filter: blur(18px);
}

.brand-mark {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-height: 40px;
  padding: 0 14px;
  border-radius: 8px;
  font-weight: 720;
}

.brand-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--mobi-gold), var(--morandi-violet) 55%, var(--mobi-ice));
  box-shadow: 0 0 18px rgba(251, 250, 247, 0.46);
}

.desktop-nav {
  display: flex;
  gap: 6px;
  padding: 4px;
  border-radius: 8px;
}

.desktop-nav a,
.manual-nav a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 32px;
  padding: 0 12px;
  border-radius: 6px;
  color: rgba(251, 250, 247, 0.82);
  font-size: 14px;
}

.desktop-nav a:hover,
.manual-nav a:hover {
  background: rgba(251, 250, 247, 0.12);
  color: var(--paper);
}

/* 三个说明书自成一组,钉在顶栏正中(左边留给应用矩阵 + 宇宙放映室,右边是语言切换)。
   ⚠️ 这组不套深色玻璃底 —— 三个 pill 自带哑金实底,再垫一层反而糊成一块。 */
.manual-nav {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 8px;
}

/* ── 三个说明书:导航里唯一的商品入口,做成一组哑金按钮 ──
   比左右两项大一档、实心哑金、hover 抬起并发光。三个并排所以不做常驻呼吸光(会太吵),
   静态的微光 + hover 的强光就够。 */
/* 三个说明书:字体、字重、文字色、垂直居中全部继承上面那条(与「应用矩阵」完全一致),
   这里只加「形状 + 底 + 描边」:pill 圆角、同一套深色玻璃、hover 描边转哑金并抬起。
   ⚠️ 别再单独写 font-size / font-weight —— 写了就和左侧那条不一样(Estelle 两次指出)。 */
.nav-manual {
  padding: 0 14px;
  border: 1px solid rgba(251, 250, 247, 0.22);
  border-radius: 999px;
  background: rgba(17, 19, 22, 0.46);
  -webkit-backdrop-filter: blur(18px);
  backdrop-filter: blur(18px);
  white-space: nowrap;
  transition: background 200ms ease, border-color 200ms ease, box-shadow 200ms ease, transform 200ms ease;
}

.nav-manual:hover {
  background: rgba(17, 19, 22, 0.66);
  border-color: rgba(185, 147, 90, 0.8);
  transform: translateY(-1px);
  box-shadow: 0 6px 18px rgba(17, 19, 22, 0.3);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.language-switch {
  display: flex;
  gap: 3px;
  padding: 4px;
  border-radius: 8px;
}

.language-option {
  min-height: 32px;
  padding: 0 10px;
  border: 0;
  border-radius: 6px;
  color: rgba(251, 250, 247, 0.72);
  background: transparent;
  cursor: pointer;
  font-size: 13px;
  font-weight: 780;
}

.language-option.active,
.language-option:hover {
  color: var(--ink);
  background: rgba(251, 250, 247, 0.92);
}

.nav-action {
  min-height: 40px;
  padding: 0 14px;
  border-radius: 8px;
  color: var(--paper);
  cursor: pointer;
}

.hero-section {
  position: relative;
  isolation: isolate;
  min-height: 92vh;
  display: flex;
  align-items: end;
  overflow: hidden;
  color: var(--paper);
  background: linear-gradient(180deg, var(--toro-cloud), var(--mobi-charcoal) 58%, var(--ink));
}

/*
  原来这层 screen 混合的径向提亮是为了把偏暗的猫狗照片背景拉起来。
  换成视频背景后它会把文字区一起提亮、白字反而压不住,故关闭。
  要回滚成静图背景时,把 display 去掉即可。
*/
.hero-section::before {
  display: none;
}

/* 背景静图:窄屏和 reduce-motion 下就是最终画面,宽屏下是视频起播前的兜底 */
.hero-poster {
  position: absolute;
  inset: 0;
  z-index: 0;
  background-image: url("/assets/hero-poster.webp");
  background-size: cover;
  /* 与 .hero-video 同一组取景,静图和视频切换时画面不跳 */
  background-position: 12% center;
}

.hero-video {
  position: absolute;
  inset: 0;
  z-index: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  /*
    取景只用 object-position 控制,不加 transform scale。
    原来的 scale(1.2) 会在 cover 之上再放大 1.2 倍,1440/DPR2 下总放大 3.27×,
    是画面变糊的主因之一。去掉后降到 1.81×(受源片 1080 高度所限,这是下限)。
    横向:cover 后溢出约 300px,12% 让画面偏左,文字落在窗景上而不是猫脸上。
  */
  object-position: 12% center;
  opacity: 0;
  transition: opacity 700ms ease;
}

/* 起播后才淡入,避免首帧黑闪 */
.hero-video.is-live {
  opacity: 1;
}

/*
  只压左边,右边的狗和暖光灯完全不碰。
  原定 0.45/45% 是按暗色光斑素材算的;换成明亮窗景后,x230–410 那段白字实测只有
  4.46:1,差一点到 WCAG AA 的 4.5。抬到 0.55/52% 后全段 ≥5.3:1,遮罩在 52% 处已归零。
*/
/*
  调子与 /loop 页对齐:直接用 loop-styles.css 里 .hero-overlay 的原值(全强度)。
  这也是首页最初那层——中间一度按「不要全屏蒙版」换成只压左侧,现在还回来。
  两层分别是横向(左重右轻)和纵向(底重顶轻)的压暗。
*/
.hero-overlay {
  position: absolute;
  inset: 0;
  z-index: 1;
  background:
    linear-gradient(90deg, rgba(17, 19, 22, 0.78) 0%, rgba(17, 19, 22, 0.48) 28%, rgba(17, 19, 22, 0.16) 56%, rgba(17, 19, 22, 0.22) 100%),
    linear-gradient(0deg, rgba(17, 19, 22, 0.88) 0%, rgba(17, 19, 22, 0.1) 48%, rgba(17, 19, 22, 0.28) 100%);
}

.hero-content {
  position: relative;
  z-index: 3;
  width: min(1120px, calc(100% - 36px));
  margin: 0 auto;
  padding: 128px 0 52px;
  text-shadow: 0 2px 20px rgba(0, 0, 0, 0.46);
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--toro-honey);
  font-size: 14px;
  font-weight: 820;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.hero-section .eyebrow {
  color: var(--toro-champagne);
}

h1,
h2,
h3,
p {
  text-wrap: pretty;
}

h1,
h2 {
  text-wrap: balance;
}

h1 {
  max-width: 900px;
  margin: 0;
  font-size: clamp(42px, 9vw, 104px);
  line-height: 0.94;
  letter-spacing: 0;
}

h1 span {
  display: block;
}

h2 {
  max-width: 860px;
  margin: 0;
  font-size: clamp(30px, 5vw, 58px);
  line-height: 1.02;
  letter-spacing: 0;
  word-break: normal;
  overflow-wrap: normal;
}

.title-segment {
  display: inline-block;
  white-space: nowrap;
}

.title-segment {
  margin-right: 0.16em;
}

body[data-lang="zh"] .hero-content {
  --hero-title-gap: clamp(16px, 1.35vw, 22px);
}

body[data-lang="zh"] h1 {
  max-width: 740px;
  font-size: clamp(38px, 6vw, 80px);
  line-height: 1.04;
}

body[data-lang="zh"] #hero-title {
  display: grid;
  row-gap: var(--hero-title-gap);
}

body[data-lang="zh"] #hero-title span:nth-child(n + 2) {
  font-size: clamp(30px, 4.55vw, 60px);
  line-height: 1.08;
}

body[data-lang="zh"] .hero-copy {
  margin-top: var(--hero-title-gap);
}

body[data-lang="en"] .hero-content {
  --hero-title-gap: clamp(16px, 1.35vw, 22px);
}

body[data-lang="en"] h1 {
  max-width: 740px;
  font-size: clamp(38px, 6vw, 80px);
  line-height: 1.04;
}

body[data-lang="en"] #hero-title {
  display: grid;
  row-gap: var(--hero-title-gap);
}

body[data-lang="en"] #hero-title span:nth-child(n + 2) {
  font-size: clamp(26px, 3.6vw, 48px);
  line-height: 1.08;
  font-weight: 600;
}

body[data-lang="en"] .hero-copy {
  margin-top: var(--hero-title-gap);
  max-width: min(620px, 54vw);
}

body[data-lang="zh"] h2 {
  max-width: 980px;
  font-size: clamp(34px, 4.3vw, 60px);
  line-height: 1.22;
}

body[data-lang="en"] h2 {
  max-width: 800px;
  font-size: clamp(32px, 4.2vw, 50px);
  line-height: 1.06;
}

/* IP / video 标题在桌面 + 平板单行不折叠(超过 max-width 也强制不换行) */
@media (min-width: 768px) {
  #ip-title,
  #video-section-title {
    max-width: none;
    white-space: nowrap;
  }
}

h3 {
  margin: 0;
  font-size: 20px;
  line-height: 1.2;
}

.hero-copy {
  max-width: 700px;
  margin: 22px 0 0;
  color: rgba(251, 250, 247, 0.84);
  font-size: clamp(17px, 2vw, 21px);
  overflow-wrap: anywhere;
}

.hero-copy-block {
  margin: 0;
}

.hero-copy-block + .hero-copy-block {
  margin-top: 0.9em;
}

.hero-slogan {
  margin: calc(var(--hero-title-gap, 22px) + 8px) 0 2px;
  padding-left: 18px;
  border-left: 3px solid var(--toro-champagne);
  display: flex;
  flex-direction: column;
  gap: 9px;
  max-width: 760px;
}

.hero-slogan-lead {
  font-size: clamp(23px, 3vw, 37px);
  font-weight: 760;
  line-height: 1.26;
  letter-spacing: 0.01em;
  color: var(--toro-champagne);
  text-shadow: 0 2px 18px rgba(0, 0, 0, 0.55);
}

.hero-slogan-trail {
  font-size: clamp(13px, 1.45vw, 16px);
  font-weight: 680;
  letter-spacing: 0.1em;
  color: rgba(251, 250, 247, 0.9);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 18px;
  border-radius: 8px;
  border: 1px solid var(--line);
  font-weight: 760;
  cursor: pointer;
  transition:
    transform 180ms ease,
    background 180ms ease,
    border-color 180ms ease;
}

.button:hover {
  transform: translateY(-1px);
}

.button.primary {
  color: #111316;
  background: var(--paper-strong);
  border-color: var(--paper-strong);
}

.button.secondary {
  color: var(--paper);
  background: rgba(251, 250, 247, 0.1);
  border-color: rgba(251, 250, 247, 0.28);
}

.section .button.secondary {
  color: var(--ink);
  background: transparent;
  border-color: var(--line);
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(4, minmax(120px, 1fr));
  gap: 1px;
  width: min(780px, 100%);
  margin: 44px 0 0;
  padding: 0;
  overflow: hidden;
  border: 1px solid rgba(251, 250, 247, 0.22);
  border-radius: 8px;
  background: rgba(251, 250, 247, 0.12);
  -webkit-backdrop-filter: blur(16px);
  backdrop-filter: blur(16px);
}

.hero-stats div {
  padding: 18px;
  background: rgba(0, 0, 0, 0.28);
}

.hero-stats dt {
  font-size: 25px;
  font-weight: 850;
}

.hero-stats dd {
  margin: 4px 0 0;
  color: rgba(251, 250, 247, 0.68);
  font-size: 13px;
  overflow-wrap: anywhere;
}

.section {
  width: min(1120px, calc(100% - 36px));
  margin: 0 auto;
  padding: 92px 0;
}

.section-heading {
  display: grid;
  gap: 10px;
  margin-bottom: 28px;
}

.section-heading .eyebrow {
  margin-bottom: 6px;
  font-size: clamp(24px, 2vw, 30px);
  font-weight: 850;
  line-height: 1.15;
}

.section-note {
  max-width: 780px;
  margin: 4px 0 0;
  color: var(--muted);
  font-size: 16px;
}

/* ── 成长时间线 growthline:莫比乌斯扭转弧线 + 珠子节点 ──────────
   命名空间用 growthline-*,避开站内既有的 .timeline(loop 路线图)组件。 */
.growthline-section .section-heading {
  text-align: center;
  justify-items: center;
}

.growthline {
  position: relative;
  max-width: 860px;
  margin: 8px auto 0;
  padding: 12px 0 20px;
}

.growthline-spine {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  overflow: visible;
  z-index: 0;
  pointer-events: none;
}

.growthline-spine-path {
  stroke: var(--mobi-gold);
  stroke-width: 2;
  stroke-linecap: round;
  opacity: 0.72;
}

.growthline-spine-ghost {
  stroke: var(--mobi-gold);
  stroke-width: 1.25;
  stroke-linecap: round;
  opacity: 0.26;
}

.growthline-nodes {
  position: relative;
  z-index: 1;
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  row-gap: 20px;
}

.growthline-node {
  position: relative;
  min-height: 96px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  column-gap: 60px;
  align-items: center;
}

.growthline-bead {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  width: 20px;
  height: 20px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--paper);
  border: 1.5px solid var(--mobi-gold);
  box-shadow: 0 0 0 5px rgba(251, 250, 247, 0.9);
  z-index: 2;
}

.growthline-bead-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--mobi-gold);
}

.growthline-card {
  max-width: 340px;
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: rgba(251, 250, 247, 0.9);
  box-shadow: 0 6px 22px rgba(17, 19, 22, 0.06);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.growthline-card:hover,
.growthline-card:focus-within {
  transform: translateY(-2px);
  box-shadow: 0 12px 34px rgba(17, 19, 22, 0.1);
}

.growthline-node.is-left .growthline-card {
  grid-column: 1;
  justify-self: end;
  text-align: right;
}

.growthline-node.is-right .growthline-card {
  grid-column: 2;
  justify-self: start;
  text-align: left;
}

.growthline-date {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--mobi-gold);
}

.growthline-title {
  margin: 6px 0 0;
  font-size: 17px;
  font-weight: 750;
  line-height: 1.32;
  color: var(--ink);
}

.growthline-desc {
  margin: 7px 0 0;
  font-size: 14px;
  line-height: 1.55;
  color: var(--muted);
}

/* 节点上的可选外链(时间线数据里填了 link 才出):世界杯战绩收进来之后用到 */
.growthline-link {
  display: inline-block;
  margin: 9px 0 0;
  color: var(--ink);
  border-bottom: 1px solid rgba(185, 147, 90, 0.45);
  font-size: 13px;
  font-weight: 600;
  line-height: 1.5;
  transition: color 180ms ease, border-color 180ms ease;
}

.growthline-link:hover {
  color: var(--mobi-gold);
  border-color: var(--mobi-gold);
}

/* 封顶:折叠态隐藏超出上限的节点,首页高度锁死 */
.growthline.is-collapsed .growthline-node.is-extra {
  display: none;
}

.growthline-more {
  display: block;
  margin: 22px auto 0;
  padding: 9px 22px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(251, 250, 247, 0.9);
  color: var(--mobi-gold);
  font-family: inherit;
  font-size: 14px;
  font-weight: 650;
  cursor: pointer;
  transition: border-color 0.2s ease, background 0.2s ease;
}

.growthline-more:hover,
.growthline-more:focus-visible {
  border-color: var(--mobi-gold);
  background: var(--paper);
}

/* 渐进增强入场:只动卡片,珠子仅淡入,保证 spine 坐标稳定 */
.growthline.js-reveal .growthline-card {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 0.5s ease, transform 0.5s ease;
  transition-delay: calc(var(--i) * 60ms);
}

.growthline.js-reveal .growthline-bead {
  opacity: 0;
  transition: opacity 0.5s ease;
  transition-delay: calc(var(--i) * 60ms);
}

.growthline.js-reveal .growthline-node.is-in .growthline-card,
.growthline.js-reveal .growthline-node.is-in .growthline-bead {
  opacity: 1;
  transform: none;
}

@media (max-width: 720px) {
  .growthline {
    max-width: 460px;
  }
  .growthline-node {
    grid-template-columns: 1fr;
    min-height: 84px;
  }
  .growthline-bead {
    left: 22px;
  }
  .growthline-node.is-left .growthline-card,
  .growthline-node.is-right .growthline-card {
    grid-column: 1;
    justify-self: stretch;
    max-width: none;
    margin-left: 52px;
    text-align: left;
  }
}

@media (prefers-reduced-motion: reduce) {
  .growthline.js-reveal .growthline-card,
  .growthline.js-reveal .growthline-bead {
    opacity: 1;
    transform: none;
    transition: none;
  }
  .growthline-card {
    transition: none;
  }
}
/* ── /成长时间线 growthline ───────────────────────────────── */

.intro-grid,
.business-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.thesis-block,
.business-block,
.app-card,
.video-item,
.link-row,
.founder-panel {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(251, 250, 247, 0.72);
  box-shadow: 0 1px 0 rgba(251, 250, 247, 0.72) inset;
}

.thesis-block,
.business-block {
  padding: 22px;
}

.thesis-block p,
.business-block p,
.app-card p,
.video-item p,
.ip-panel p {
  margin: 12px 0 0;
  color: var(--muted);
}

.ip-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

.ip-panel {
  position: relative;
  display: grid;
  grid-template-columns: minmax(240px, 48%) 1fr;
  min-width: 0;
  min-height: 410px;
  padding: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--ink);
  background: rgba(251, 250, 247, 0.72);
  box-shadow: 0 1px 0 rgba(251, 250, 247, 0.72) inset;
}

.mobi-panel {
  background:
    linear-gradient(120deg, rgba(169, 187, 195, 0.18), rgba(251, 250, 247, 0.72)),
    rgba(251, 250, 247, 0.72);
}

.toro-panel {
  background:
    linear-gradient(120deg, rgba(214, 190, 138, 0.2), rgba(251, 250, 247, 0.72)),
    rgba(251, 250, 247, 0.72);
}

.ip-portrait {
  position: relative;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  margin: 0;
  min-height: 410px;
  padding: 0;
  overflow: hidden;
  border-right: 1px solid var(--line);
}

.ip-portrait::before,
.ip-portrait::after {
  content: none;
}

.ip-portrait-mobi {
  background:
    linear-gradient(180deg, rgba(231, 236, 236, 0.8), rgba(239, 236, 228, 0.86)),
    var(--mobi-mist);
}

.ip-portrait-toro {
  background:
    linear-gradient(180deg, rgba(244, 238, 224, 0.92), rgba(237, 230, 213, 0.82)),
    var(--toro-cloud);
}

.ip-portrait img {
  position: relative;
  z-index: 1;
  display: block;
  width: auto;
  height: 100%;
  max-width: 100%;
  object-fit: contain;
  object-position: bottom center;
  /* 抠图带透明通道,无需 multiply;multiply 会把白毛与奶黄面板相乘染黄发脏 */
  mix-blend-mode: normal;
  filter: drop-shadow(0 18px 22px rgba(32, 28, 24, 0.14));
}

.ip-copy {
  display: flex;
  flex: 1;
  flex-direction: column;
  min-width: 0;
  padding: 22px;
}

.panel-tag {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-bottom: 14px;
  color: var(--ink);
  font-size: clamp(27px, 2.5vw, 34px);
  font-weight: 850;
  line-height: 1.05;
  letter-spacing: 0;
}

.ip-name-alt {
  color: var(--muted);
  font-size: 14px;
  font-weight: 500;
  line-height: 1.2;
  letter-spacing: 0.04em;
}

.founder-title-alt {
  display: inline-block;
  margin-left: 0.16em;
  color: var(--muted);
  font-family: inherit;
  font-size: inherit;
  font-weight: 850;
  line-height: inherit;
  white-space: nowrap;
}

.ip-panel p {
  color: var(--muted);
}

.app-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  max-width: 1104px; /* 3 × 360 + 2 × 12 — 保持卡片宽度统一,左对齐于标题 */
}

.app-grid[data-cols="2"] {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  max-width: 732px; /* 2 × 360 + 12 */
}

.app-grid[data-cols="4"] {
  grid-template-columns: repeat(4, minmax(0, 1fr));
  max-width: 100%;
}

.app-card {
  position: relative;
  display: flex;
  min-height: 260px;
  flex-direction: column;
  overflow: hidden;
}

.app-card::before {
  content: "";
  display: block;
  height: 5px;
  background: linear-gradient(90deg, var(--app-color, var(--ink)), var(--app-accent, var(--app-color, var(--ink))));
}

.app-card-body {
  display: flex;
  flex: 1;
  flex-direction: column;
  padding: 15px;
}

.card-topline {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 10px;
}

.app-code {
  color: var(--muted);
  font-size: 12px;
  font-weight: 760;
}

.app-title {
  display: grid;
  gap: 4px;
  min-height: var(--app-title-height, 0px);
  margin-bottom: 10px;
  font-weight: 700;
}

.app-title strong {
  display: block;
  font-size: 19px;
  color: var(--ink);
  line-height: 1.2;
}

.app-title span {
  display: block;
  margin-top: 4px;
  font-size: 13px;
  color: var(--muted);
  letter-spacing: 0.04em;
}

.app-card p {
  font-size: 13px;
  line-height: 1.48;
}

.app-thesis {
  min-height: var(--app-thesis-height, 72px);
  margin: 0;
}

.app-insight {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  align-items: start;
  gap: 8px;
  margin-top: 16px;
}

.app-action {
  width: 100%;
  min-height: 34px;
  padding: 0 8px;
  border-radius: 8px;
  font-size: 12px;
  font-weight: 820;
  line-height: 1.2;
  white-space: nowrap;
  box-shadow: 0 8px 18px rgba(17, 19, 22, 0.08);
}

.app-problem-button {
  color: var(--paper);
  background: var(--app-problem-color, var(--app-color, var(--ink)));
  border-color: var(--app-problem-color, var(--app-color, var(--ink)));
  text-shadow: 0 1px 2px rgba(17, 19, 22, 0.28);
}

.app-edge-button {
  color: var(--paper);
  background: var(--app-edge-color, var(--app-accent, var(--app-color, var(--ink))));
  border-color: var(--app-edge-color, var(--app-accent, var(--app-color, var(--ink))));
  text-shadow: 0 1px 2px rgba(17, 19, 22, 0.28);
}

.app-toggle.active,
.app-toggle:hover,
.app-enter-link:hover {
  filter: saturate(1.06) brightness(0.96);
  box-shadow: 0 10px 22px rgba(17, 19, 22, 0.14);
}

.app-enter-link {
  color: var(--paper);
  background: var(--app-enter-color, var(--app-color, var(--ink)));
  border-color: var(--app-enter-color, var(--app-color, var(--ink)));
  text-shadow: 0 1px 2px rgba(17, 19, 22, 0.28);
}

.app-info-panel {
  grid-column: 1 / -1;
  margin: 0;
  padding: 10px 11px;
  border: 1px solid color-mix(in srgb, var(--app-color, var(--ink)) 18%, var(--line));
  border-radius: 8px;
  color: var(--muted);
  background: rgba(255, 255, 255, 0.38);
}

.app-info-panel[hidden] {
  display: none;
}

.app-expansion-rail {
  position: relative;
  min-height: 382px;
  overflow: hidden;
}

.future-card-body {
  position: relative;
  z-index: 1;
  display: flex;
  min-height: 382px;
  flex-direction: column;
  width: 100%;
  padding: 20px 2px 16px;
}

.future-topline {
  display: flex;
  align-items: center;
  min-height: 18px;
  margin-bottom: 10px;
}

.future-topline span {
  color: var(--mobi-gold);
  font-size: 12px;
  font-weight: 860;
  letter-spacing: 0.08em;
  line-height: 1.2;
  text-transform: uppercase;
}

.future-title {
  display: grid;
  align-content: start;
  min-height: var(--app-title-height, 0px);
  margin-bottom: 10px;
}

.future-title strong {
  font-size: clamp(30px, 3.3vw, 42px);
  line-height: 0.95;
  letter-spacing: 0;
}

.future-spacer {
  min-height: var(--app-thesis-height, 72px);
}

.future-rail {
  position: relative;
  min-height: 74px;
  margin-top: 16px;
  overflow: hidden;
}

.future-track {
  position: absolute;
  top: 11px;
  left: -18%;
  width: 136%;
  height: 12px;
  border-radius: 999px;
  background:
    repeating-linear-gradient(
      90deg,
      rgba(17, 19, 22, 0.1) 0 28px,
      rgba(185, 147, 90, 0.74) 28px 42px,
      rgba(169, 187, 195, 0.26) 42px 68px
    );
  box-shadow:
    0 0 0 1px rgba(17, 19, 22, 0.06),
    0 16px 32px rgba(17, 19, 22, 0.1);
  animation: futureTrack 9s linear infinite;
}

.future-scan {
  position: absolute;
  top: -18px;
  left: -24%;
  width: 24%;
  height: 70px;
  background: linear-gradient(90deg, transparent, rgba(185, 147, 90, 0.34), rgba(251, 250, 247, 0.62), transparent);
  animation: futureScan 4.8s ease-in-out infinite;
}

.future-ticks {
  position: absolute;
  inset: -20px 0 20px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  align-items: center;
  gap: 12px;
}

.future-ticks span {
  display: block;
  height: 48px;
  border-left: 2px solid color-mix(in srgb, var(--mobi-slate) 42%, transparent);
  opacity: 0.55;
  animation: futureTick 3.6s ease-in-out infinite;
}

.future-ticks span:nth-child(2n) {
  height: 64px;
  animation-delay: 0.4s;
}

.future-ticks span:nth-child(3n) {
  animation-delay: 0.9s;
}

@keyframes futureTrack {
  from {
    transform: translateX(0);
  }

  to {
    transform: translateX(-68px);
  }
}

@keyframes futureScan {
  0% {
    transform: translateX(0);
    opacity: 0;
  }

  16% {
    opacity: 1;
  }

  72% {
    opacity: 1;
  }

  100% {
    transform: translateX(560%);
    opacity: 0;
  }
}

@keyframes futureTick {
  0%,
  100% {
    transform: scaleY(0.72);
    opacity: 0.34;
  }

  50% {
    transform: scaleY(1);
    opacity: 0.78;
  }
}

.disabled-link {
  cursor: not-allowed;
  opacity: 0.52;
  pointer-events: none;
}

.flywheel-layout {
  display: grid;
  grid-template-columns: minmax(260px, 360px) 1fr;
  gap: 18px;
}

.flywheel-core {
  display: grid;
  align-self: start;
  gap: 10px;
  padding: 18px;
  border-radius: 8px;
  color: var(--paper);
  background: linear-gradient(160deg, var(--ink), var(--morandi-emerald) 50%, var(--morandi-violet));
  box-shadow: var(--shadow);
}

.flow-node {
  display: flex;
  align-items: center;
  min-height: 52px;
  padding: 0 14px;
  border: 1px solid rgba(251, 250, 247, 0.18);
  border-radius: 8px;
  background: rgba(251, 250, 247, 0.1);
  font-weight: 760;
}

.flow-line {
  width: 1px;
  height: 14px;
  margin-left: 24px;
  background: rgba(251, 250, 247, 0.35);
}

.video-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.video-item {
  padding: 18px;
}

.video-item strong {
  display: block;
  margin-bottom: 7px;
  font-size: 17px;
}

.video-item small {
  color: var(--muted);
  font-weight: 760;
}

/* ===== v6 板块矩阵 ===== */
.app-matrix {
  display: grid;
  gap: 56px;
}

.matrix-section {
  display: grid;
  gap: 20px;
}

/* 跨境电商流程板块:选品 → 出图 → 出视频 → 上架 */
.crossborder-flow {
  display: flex;
  align-items: stretch;
  gap: 10px;
  flex-wrap: wrap;
}
.cb-step {
  flex: 1 1 180px;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 16px 18px;
  border: 1px solid rgba(17, 19, 22, 0.1);
  border-top: 3px solid var(--cat-color, var(--ink));
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.5);
  text-decoration: none;
  color: var(--ink);
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.cb-step:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 22px rgba(17, 19, 22, 0.08);
}
.cb-step-no {
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.06em;
  color: var(--cat-color, var(--ink));
  opacity: 0.7;
}
.cb-step-name {
  display: flex;
  align-items: baseline;
  gap: 8px;
  flex-wrap: wrap;
}
.cb-step-name strong {
  font-size: 18px;
  font-weight: 820;
}
.cb-step-name em {
  font-style: normal;
  font-size: 12px;
  font-weight: 600;
  color: rgba(17, 19, 22, 0.5);
}
.cb-step-desc {
  font-size: 13px;
  line-height: 1.5;
  color: rgba(17, 19, 22, 0.68);
}
.cb-arrow {
  align-self: center;
  color: var(--cat-color, var(--ink));
  font-size: 20px;
  font-weight: 700;
  opacity: 0.55;
  flex: 0 0 auto;
}
/* 流程跑出的实店:mobistone */
.cb-outcome {
  margin-top: 14px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.cb-outcome-tag {
  margin: 0;
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  font-weight: 700;
  color: var(--cat-color, var(--ink));
}
.cb-outcome-tag::before {
  content: "↳";
  font-size: 15px;
}
.cb-outcome-card {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px 18px;
  padding: 16px 20px;
  border-radius: 14px;
  background: rgba(15, 76, 92, 0.06);
  border: 1px solid rgba(15, 76, 92, 0.22);
  text-decoration: none;
  color: var(--ink);
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.cb-outcome-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 22px rgba(15, 76, 92, 0.12);
}
.cb-outcome-name {
  display: flex;
  align-items: baseline;
  gap: 8px;
}
.cb-outcome-name strong {
  font-size: 18px;
  font-weight: 820;
}
.cb-outcome-name em {
  font-style: normal;
  font-size: 12px;
  font-weight: 600;
  color: rgba(17, 19, 22, 0.5);
}
.cb-outcome-desc {
  flex: 1 1 240px;
  font-size: 13px;
  line-height: 1.5;
  color: rgba(17, 19, 22, 0.68);
}
.cb-outcome-cta {
  font-size: 13px;
  font-weight: 700;
  color: var(--cat-color, var(--ink));
  white-space: nowrap;
}

@media (max-width: 720px) {
  .crossborder-flow {
    flex-direction: column;
  }
  .cb-step {
    flex-basis: auto;
  }
  .cb-arrow {
    transform: rotate(90deg);
    align-self: center;
  }
}

.matrix-head {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 4px 14px;
  padding-left: 16px;
  border-left: 3px solid var(--cat-color, var(--ink));
}

.matrix-eyebrow {
  margin: 0;
  color: var(--cat-color, var(--ink));
  font-size: clamp(21px, 1.9vw, 27px);
  font-weight: 850;
  line-height: 1.15;
}

/* 黑色标题并列在彩色标题之后 */
.matrix-h {
  margin: 0;
  color: var(--ink);
  font-size: clamp(15px, 1.4vw, 18px);
  font-weight: 760;
  line-height: 1.3;
}

/* 矩阵底部「陆续更新 · 持续造物中」页脚:复用流动轨道,表示持续造物 */
.matrix-foot {
  margin-top: 10px;
  padding-top: 30px;
  border-top: 1px dashed var(--line);
}

.matrix-foot .future-rail {
  min-height: 52px;
  margin-top: 18px;
  overflow: hidden;
}

.matrix-foot .future-ticks {
  inset: 0;
  grid-template-columns: repeat(6, 1fr);
}

.matrix-foot .future-ticks span {
  height: 30px;
  align-self: center;
}

/* ===== 认知三角:三张完整 app 卡片排成闭环(捕光 → 识库 → 印迹 → 捕光)===== */
/* 标题居中置于三角正上方(三角内容本身居中,故此板块标题不走左对齐) */
.matrix-cognition .matrix-head {
  justify-content: center;
  text-align: center;
  border-left: none;
  padding-left: 0;
}

.triangle-loop {
  position: relative;
  width: min(100%, 980px);
  margin: 8px auto 0;
  aspect-ratio: 1000 / 700;
  overflow: visible;
}

.triangle-lines {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  pointer-events: none;
  transition: opacity 0.25s ease;
}

.tri-edges line {
  fill: none;
  stroke: color-mix(in srgb, var(--mobi-gold, #b9935a) 62%, transparent);
  stroke-width: 2;
  stroke-linecap: round;
}

.tri-arrows polygon {
  fill: var(--mobi-gold, #b9935a);
}

/* 三角节点本身是 .app-card(配色/边框/按钮全部继承),这里只负责定位 */
.tri-node {
  position: absolute;
  z-index: 2;
  width: 31%;
  min-width: 0;
}

.tri-node.is-top {
  top: 0;
  left: 50%;
  margin-left: -15.5%; /* 节点宽度 31% 的一半,水平居中 */
}

.tri-node.is-left {
  bottom: 0;
  left: 0;
}

.tri-node.is-right {
  bottom: 0;
  right: 0;
}

/* 角色标签:位于卡片顶栏 app 编号右侧 */
.tri-role {
  font-style: normal;
  font-size: 11px;
  font-weight: 820;
  letter-spacing: 0.02em;
  text-align: right;
  color: var(--app-color, var(--ink));
}

.triangle-center {
  position: absolute;
  left: 50%;
  top: 50%;
  z-index: 1;
  transform: translate(-50%, -50%);
  margin: 0;
  padding: 7px 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(251, 250, 247, 0.92);
  color: var(--muted);
  font-size: 12.5px;
  font-weight: 760;
  white-space: nowrap;
  transition: opacity 0.25s ease;
}

/* 任一节点展开详情时,淡出连线与中心标签,避免与放大的卡片重叠 */
.triangle-loop.is-expanded .triangle-lines,
.triangle-loop.is-expanded .triangle-center {
  opacity: 0;
}

.timeline {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 1px;
  margin-top: 18px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--line);
}

.timeline-step {
  min-height: 150px;
  padding: 18px;
  background: rgba(251, 250, 247, 0.72);
}

.timeline-step span {
  display: block;
  color: var(--orange);
  font-size: 13px;
  font-weight: 850;
}

.timeline-step strong {
  display: block;
  margin-top: 10px;
  line-height: 1.22;
}

.founder-panel {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 36px;
  align-items: stretch;
  padding: 24px;
}

.founder-photo-wrap {
  position: relative;
  width: 100%;
  height: 100%;
  min-height: 0;
  overflow: hidden;
  border-radius: 8px;
  border: 1px solid var(--line);
  box-shadow: 0 18px 42px rgba(17, 19, 22, 0.12);
}

.founder-photo {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}


.founder-copy p {
  margin: 0;
  color: var(--muted);
  font-size: 18px;
  line-height: 1.65;
}

.founder-p {
  display: block;
}

.founder-p + .founder-p {
  margin-top: 0.7em;
}

.d-only { display: inline; }
.m-only { display: none; }
@media (max-width: 767px) {
  .d-only { display: none; }
  .m-only { display: inline; }
}

.founder-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 18px;
}

body[data-lang="en"] .founder-tags {
  display: grid;
  grid-template-columns: repeat(3, max-content);
}

.founder-tags span {
  min-height: 34px;
  padding: 7px 12px;
  border: 1px solid rgba(251, 250, 247, 0.18);
  border-radius: 999px;
  color: var(--paper);
  font-size: 13px;
  font-weight: 760;
  background: var(--mobi-charcoal);
  box-shadow: 0 10px 22px rgba(17, 19, 22, 0.1);
  text-shadow: 0 1px 2px rgba(17, 19, 22, 0.28);
}

.founder-tags span:nth-child(6n + 1) {
  background: #b8795f;
  border-color: rgba(184, 121, 95, 0.42);
  text-shadow: 0 1px 3px rgba(17, 19, 22, 0.36);
}

.founder-tags span:nth-child(6n + 2) {
  background: var(--mobi-slate);
}

.founder-tags span:nth-child(6n + 3) {
  background: var(--morandi-emerald);
}

.founder-tags span:nth-child(6n + 4) {
  background: var(--morandi-teal);
}

.founder-tags span:nth-child(6n + 5) {
  background: var(--morandi-violet);
}

.founder-tags span:nth-child(6n + 6) {
  background: var(--mobi-gold);
}

.link-board {
  display: grid;
  gap: 8px;
}

.link-row {
  display: grid;
  grid-template-columns: minmax(180px, 1.2fr) minmax(220px, 1fr) auto;
  gap: 16px;
  align-items: center;
  padding: 14px 16px;
}

.link-row strong {
  display: block;
}

.link-row span {
  color: var(--muted);
  font-size: 13px;
}

.link-url {
  overflow: hidden;
  color: var(--muted);
  font-size: 14px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.pending-url {
  font-style: italic;
}

.link-actions {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
}

.link-actions .button {
  white-space: nowrap;
}

.doc-button {
  border-color: rgba(82, 111, 99, 0.28);
  color: var(--mobi-teal);
}

.tool-link-row {
  border-color: color-mix(in srgb, var(--mobi-gold) 32%, var(--line));
  background:
    linear-gradient(90deg, rgba(185, 147, 90, 0.1), rgba(251, 250, 247, 0.72)),
    rgba(251, 250, 247, 0.68);
}

.link-note {
  margin: 14px 0 0;
  color: var(--muted);
  font-size: 14px;
}

.site-footer {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px;
  padding: 34px clamp(18px, 4vw, 54px);
  color: rgba(251, 250, 247, 0.68);
  background: var(--ink);
  font-size: 14px;
}

@media (max-width: 1020px) {
  .intro-grid,
  .business-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  /* 选择器特异性需 ≥ 基础 [data-cols] 规则(0,2,0)才能覆盖 */
  .app-grid,
  .app-grid[data-cols="2"],
  .app-grid[data-cols="4"] {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    max-width: 732px;
  }

  .flywheel-layout {
    grid-template-columns: 1fr;
  }

  .timeline {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 760px) {
  .site-header {
    gap: 8px;
    padding: 12px;
  }

  .desktop-nav,
  .manual-nav {
    display: none;
  }

  .nav-action {
    display: none;
  }

  .brand-mark {
    max-width: calc(100vw - 128px);
    overflow: hidden;
  }

  .brand-mark span:last-child {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  .header-actions {
    flex: 0 0 auto;
    margin-left: auto;
  }

  .language-option {
    min-width: 40px;
    padding: 0 8px;
  }

  h1 {
    max-width: 100%;
    font-size: 38px;
    line-height: 0.98;
  }

  body[data-lang="en"] h1 {
    max-width: 100%;
    font-size: 42px;
  }

  body[data-lang="en"] .hero-copy {
    max-width: 100%;
  }

  h2 {
    max-width: 100%;
    font-size: clamp(24px, 7.2vw, 30px);
    line-height: 1.12;
    overflow-wrap: normal;
  }

  h3,
  p {
    overflow-wrap: anywhere;
  }

  .hero-copy {
    max-width: 100%;
    font-size: 15px;
    line-height: 1.58;
    word-break: break-word;
  }

  .hero-section {
    min-height: 96vh;
  }

  .hero-overlay {
    background:
      linear-gradient(to right, rgba(0, 0, 0, 0.55), rgba(0, 0, 0, 0.12) 60%),
      linear-gradient(0deg, rgba(17, 19, 22, 0.72) 0%, transparent 46%);
  }

  .hero-content {
    width: calc(100vw - 36px);
    max-width: calc(100vw - 36px);
    margin-right: 18px;
    margin-left: 18px;
    padding-top: 112px;
    padding-bottom: 28px;
  }

  .hero-stats {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    width: 100%;
  }

  .hero-stats div {
    padding: 14px;
  }

  .section {
    width: min(100% - 28px, 1180px);
    padding: 66px 0;
  }

  .intro-grid,
  .business-grid,
  .ip-grid,
  .video-list {
    grid-template-columns: 1fr;
  }

  .app-matrix {
    gap: 44px;
  }

  /* 单列堆叠,覆盖基础 [data-cols] 规则 */
  .app-grid,
  .app-grid[data-cols="2"],
  .app-grid[data-cols="4"] {
    grid-template-columns: 1fr;
    max-width: none;
  }

  /* 认知三角:窄屏改竖向堆叠,隐藏连线 SVG */
  .triangle-loop {
    aspect-ratio: auto;
    display: flex;
    flex-direction: column;
    gap: 12px;
    width: 100%;
    max-width: 440px;
    margin-top: 4px;
  }

  .triangle-lines {
    display: none;
  }

  .tri-node,
  .tri-node.is-top,
  .tri-node.is-left,
  .tri-node.is-right {
    position: static;
    width: 100%;
    margin-left: 0;
    transform: none;
  }

  /* 竖向流:中心说明 → 识库(01) → 捕光(02) → 印迹(03),序数从上往下递增 */
  .triangle-center {
    position: static;
    transform: none;
    order: 1;
    align-self: center;
  }

  .tri-node.is-top {
    order: 2;
  }

  .tri-node.is-left {
    order: 3;
  }

  .tri-node.is-right {
    order: 4;
  }

  .app-expansion-rail {
    min-height: 260px;
  }

  .future-card-body {
    min-height: 260px;
    padding: 12px 0 22px;
  }

  .future-rail {
    min-height: 74px;
  }

  .ip-panel {
    grid-template-columns: 1fr;
    min-height: auto;
  }

  .ip-portrait {
    min-height: 310px;
    padding-top: 28px;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .ip-portrait img {
    width: min(58vw, 238px);
    max-height: 280px;
  }

  .timeline {
    grid-template-columns: 1fr;
  }

  .founder-panel {
    grid-template-columns: 1fr;
  }

  .founder-photo {
    width: 132px;
  }

  .link-row {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .link-row .button {
    width: 100%;
  }

  .link-actions {
    width: 100%;
    justify-content: stretch;
  }

  .link-actions .button {
    flex: 1;
  }
}

@media (prefers-reduced-motion: reduce) {
  .future-track,
  .future-scan,
  .future-ticks span {
    animation: none;
  }

  .future-scan {
    display: none;
  }

  /* 首屏视频:JS 已经不注入 source,这里再兜一层,只留 poster 静图 */
  .hero-video {
    display: none;
  }
}

@media print {
  .site-header,
  .hero-actions,
  .language-switch,
  .button {
    display: none !important;
  }

  body {
    background: var(--paper);
  }

  .hero-section {
    min-height: 580px;
  }

  .section {
    padding: 38px 0;
  }
}

/* -------- intro 区:Möbius 诗意文案(替代原 3 卡) -------- */

.intro-poetic {
  max-width: 780px;
  margin: 56px 0 0;
  padding: 0;
  text-align: left;
  color: var(--ink);
}

.intro-poetic-block {
  margin: 0;
  font-size: clamp(20px, 2.5vw, 26px);
  line-height: 1.65;
  letter-spacing: 0.01em;
  color: var(--muted);
}

.intro-poetic-block + .intro-poetic-block {
  margin-top: 1.6em;
}

@media (max-width: 720px) {
  .intro-poetic { margin-top: 36px; }
  .intro-poetic-block { font-size: 16px; line-height: 1.6; }
  .intro-poetic-block + .intro-poetic-block { margin-top: 1.2em; }
}


/* -------- 视频矩阵 section -------- */

.video-section .section-heading {
  text-align: left;
}

.section-subtitle {
  margin: 14px 0 0;
  color: var(--toro-honey);
  font-size: clamp(13px, 1.2vw, 15px);
  font-weight: 600;
  letter-spacing: 0.04em;
  line-height: 1.55;
}

.video-grid {
  margin-top: 36px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.video-card {
  background: var(--paper-strong, #fbfaf7);
  border: 1px solid var(--line, rgba(17, 19, 22, 0.12));
  border-radius: 10px;
  padding: 24px 22px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  min-height: 160px;
  transition: transform 0.18s ease, box-shadow 0.18s ease;
}

.video-card:hover {
  transform: translateY(-1px);
  box-shadow: 0 10px 22px rgba(17, 19, 22, 0.08);
}

/* 已上线的宇宙卡(带 links):整卡可点,加一个哑金箭头做可点提示。
   卡面维持原样,不描边不换底——它是宇宙卡,不是入口。不新增色值。 */
.video-card.is-entry .video-card-copy::after {
  content: " →";
  color: var(--mobi-gold);
  font-weight: 700;
}

.video-card.is-entry:hover .video-card-name strong {
  color: var(--mobi-gold);
}

/* 产线入口横幅:排在放映室卡片之下,整条可点,哑金描边拉出存在感。
   语言沿用 [data-i18n];配色沿用站内哑金一套。 */
.pipeline-banner {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  overflow: hidden;
  min-height: 200px;
  margin-top: 18px;
  padding: 22px 28px;
  border: 1px solid rgba(185, 147, 90, 0.45);
  border-radius: 10px;
  background: linear-gradient(120deg, rgba(185, 147, 90, 0.1), rgba(185, 147, 90, 0.03));
  color: var(--paper);
  transition: border-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
}

.pipeline-banner:hover {
  border-color: var(--mobi-gold);
  box-shadow: var(--shadow);
  transform: translateY(-2px);
}

/* 背景视频铺满整条;autoplay 被挡时留 poster 静态图 */
.pipeline-banner-video {
  position: absolute;
  inset: 0;
  z-index: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  pointer-events: none;
}

/* 压一层墨色渐变,保证文字在任何一帧上都读得清 */
.pipeline-banner-scrim {
  position: absolute;
  inset: 0;
  z-index: 1;
  background: linear-gradient(100deg, rgba(17, 19, 22, 0.78), rgba(17, 19, 22, 0.34));
}

.pipeline-banner-text {
  position: relative;
  z-index: 2;
  font-size: clamp(18px, 2vw, 26px);
  font-weight: 760;
  line-height: 1.4;
  text-shadow: 0 1px 12px rgba(17, 19, 22, 0.55);
}

@media (max-width: 767px) {
  .pipeline-banner {
    min-height: 160px;
    padding: 18px 18px;
    gap: 14px;
  }
}

.video-card-name {
  margin: 0;
}

.video-card-name strong {
  display: block;
  font-size: 19px;
  color: var(--ink);
  line-height: 1.2;
}

.video-card-name span {
  display: block;
  margin-top: 4px;
  font-size: 13px;
  color: var(--muted);
  letter-spacing: 0.04em;
}

.video-card-copy {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.6;
  color: var(--muted);
  flex: 1;
}

.video-extra {
  margin: 28px 0 0;
  font-size: 13px;
  line-height: 1.6;
  color: var(--toro-honey);
  font-weight: 500;
  letter-spacing: 0.02em;
}

@media (max-width: 980px) {
  .video-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 540px) {
  .video-grid { grid-template-columns: 1fr; }
}


/* -------- 视频区 expansion rail 缩小到跟 video-card 一致 -------- */

.video-section .app-expansion-rail {
  min-height: 160px;
  padding: 24px 22px;
  border: 1px solid var(--line, rgba(17, 19, 22, 0.12));
  border-radius: 10px;
  background: var(--paper-strong, #fbfaf7);
  display: flex;
  align-items: stretch;
}

.video-section .app-expansion-rail .future-card-body {
  min-height: auto;
  padding: 0;
  gap: 10px;
}

.video-section .app-expansion-rail .future-topline {
  min-height: auto;
  margin-bottom: 4px;
}

.video-section .app-expansion-rail .future-title {
  min-height: auto;
  margin-bottom: 0;
}

.video-section .app-expansion-rail .future-title strong {
  font-size: 19px;
  line-height: 1.2;
}

.video-section .app-expansion-rail .future-spacer {
  min-height: 0;
  flex: 1;
}

.video-section .app-expansion-rail .future-rail {
  min-height: 36px;
  margin-top: 4px;
}


/* expansion 卡:顶部小字不可见但占空间(让 title/rail 跟邻卡对齐) */
.app-expansion-rail .future-topline {
  visibility: hidden;
}


/* hero 数字带下方小字注脚 */
.hero-stats-note {
  margin: 18px 0 0;
  text-align: center;
  font-size: 13px;
  color: #b9935a;
  letter-spacing: 0.04em;
  font-weight: 500;
}


/* 莫比 portrait 单独贴顶(不跟托罗一起贴底) */
.ip-portrait-mobi {
  align-items: center;
}




/* -------- intro section 2 列 layout + Möbius logo -------- */

.intro-layout {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: 64px;
  align-items: center;
}

.intro-right {
  display: flex;
  align-items: center;
  justify-content: center;
}

.mobius-logo {
  width: 100%;
  max-width: 380px;
  height: auto;
  opacity: 0.92;
}

@media (max-width: 860px) {
  .intro-layout {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .intro-right { order: 2; }
  .mobius-logo { max-width: 200px; }
}

/* -------- 保持联系 section -------- */

.contact-section {
  text-align: center;
}

.contact-section .section-heading {
  text-align: center;
}

.contact-section .section-heading h2 {
  margin: 0 auto;
}

.contact-section .section-subtitle {
  margin-left: auto;
  margin-right: auto;
  color: var(--toro-honey);
  font-weight: 600;
  letter-spacing: 0.04em;
  font-size: clamp(13px, 1.2vw, 15px);
}

.contact-grid {
  margin-top: 48px;
  display: flex;
  flex-wrap: wrap;
  gap: 36px;
  justify-content: center;
  align-items: center;
}

.contact-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
  padding: 24px 28px;
  border: 1px solid var(--line, rgba(17, 19, 22, 0.12));
  border-radius: 12px;
  background: var(--paper-strong, #fbfaf7);
  min-width: 200px;
  transition: transform 0.18s ease, box-shadow 0.18s ease;
  text-decoration: none;
  color: inherit;
}

.contact-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 28px rgba(17, 19, 22, 0.1);
}

.contact-qr {
  width: 180px;
  height: 180px;
  object-fit: contain;
  background: #fff;
  border-radius: 8px;
  border: 1px solid var(--line);
}

.contact-card-label {
  margin: 0;
  font-size: 14px;
  color: var(--ink);
  font-weight: 500;
}

.contact-card-linkedin {
  background: #0a66c2;
  color: #fbfaf7;
  border-color: #0a66c2;
  padding: 36px 40px;
}

.contact-linkedin-icon {
  font-size: 48px;
  font-weight: 900;
  font-style: italic;
  line-height: 1;
}

.contact-card-linkedin .contact-card-label {
  color: #fbfaf7;
  font-weight: 600;
}


/* Möbius logo 图 */
.mobius-logo-img {
  width: 100%;
  max-width: 420px;
  height: auto;
  display: block;
  margin: 0 auto;
  transform: translateX(-40px);
}

body[data-lang="en"] .mobius-logo-img {
  transform: translate(-160px, 80px);
}

/*
  换成旋转视频后,尺寸和位移完全沿用上面那条,这里只补视频自己需要的三件事:
  1. aspect-ratio —— 窄屏/reduce-motion 下没有 source,height:auto 会塌成 0,盒子必须自己撑住
  2. mix-blend-mode —— 原片是纯白底,乘法混合后白色融进纸色背景,省掉抠图
  3. object-fit —— 画幅已按原插图比例补边,contain 保证不裁切
*/
video.mobius-logo-img {
  aspect-ratio: 1160 / 1198;
  object-fit: contain;
  mix-blend-mode: multiply;
  background: transparent;
  pointer-events: none;
}


@media (max-width: 860px) {
  .mobius-logo-img { max-width: 220px; }
}


/* -------- 隐蔽角标:右下角联系 icon + 微信 QR modal -------- */

.contact-icon {
  position: fixed;
  right: clamp(18px, 2.5vw, 28px);
  bottom: clamp(18px, 2.5vw, 28px);
  z-index: 50;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(17, 19, 22, 0.6);
  color: rgba(251, 250, 247, 0.92);
  border: 0;
  cursor: pointer;
  opacity: 0.4;
  transition: opacity 0.18s ease, transform 0.18s ease, background 0.18s ease;
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  text-decoration: none;
}

.contact-icon:hover {
  opacity: 1;
  transform: translateY(-2px);
  background: rgba(17, 19, 22, 0.85);
}

.contact-icon svg {
  width: 22px;
  height: 22px;
  display: block;
}

/* 语言切换:中文显示微信、英文显示 LinkedIn */
body[data-lang="en"] .contact-icon-wechat { display: none; }
body[data-lang="zh"] .contact-icon-linkedin { display: none; }

/* 微信 QR modal */
.wechat-modal {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
}

.wechat-modal[hidden] { display: none; }

.wechat-modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(17, 19, 22, 0.55);
  cursor: pointer;
  animation: wechat-fade 0.18s ease;
}

.wechat-modal-inner {
  position: relative;
  background: var(--paper, #fbfaf7);
  width: min(360px, calc(100% - 36px));
  border-radius: 14px;
  padding: 32px;
  box-shadow: 0 28px 60px rgba(17, 19, 22, 0.4);
  text-align: center;
  animation: wechat-pop 0.22s ease;
}

@keyframes wechat-fade {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes wechat-pop {
  from { opacity: 0; transform: translateY(8px) scale(0.98); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

.wechat-modal-close {
  position: absolute;
  top: 10px;
  right: 14px;
  background: transparent;
  border: 0;
  font-size: 28px;
  line-height: 1;
  color: var(--muted, #6e6259);
  cursor: pointer;
  padding: 6px 10px;
  border-radius: 6px;
}

.wechat-modal-close:hover { background: rgba(17, 19, 22, 0.06); }

.wechat-qr-img {
  display: block;
  width: 100%;
  max-width: 280px;
  margin: 0 auto;
  border-radius: 10px;
}


/* -------- 视觉终点彩蛋:底部居中行 -------- */

.site-footer-mini {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  padding: 120px 24px 64px;
  color: var(--muted, #6e6259);
  font-family: inherit;
}

.site-footer-mini a,
.site-footer-mini button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: 0;
  color: var(--muted, #6e6259);
  text-decoration: none;
  cursor: pointer;
  padding: 6px 8px;
  border-radius: 6px;
  transition: color 0.18s ease, transform 0.18s ease, background 0.18s ease;
}

.site-footer-mini a:hover,
.site-footer-mini button:hover {
  color: var(--ink, #111316);
  transform: translateY(-1px);
  background: rgba(17, 19, 22, 0.04);
}

.site-footer-mini svg {
  width: 18px;
  height: 18px;
  display: block;
}

.site-footer-mini .footer-handle {
  font-size: 14px;
  letter-spacing: 0.04em;
  font-weight: 500;
}


/* ===================================================
 * 响应式补丁(desktop >= 1024px 不动)
 * Tablet: 768-1023px / Mobile: <768px
 * =================================================== */

/* 全局横向滚动防御 */
html, body {
  overflow-x: hidden;
  max-width: 100vw;
}

img, svg, video {
  max-width: 100%;
  height: auto;
}

/* ---------- Tablet (768-1023px) ---------- */
@media (max-width: 1023px) and (min-width: 768px) {
  .section {
    padding: 64px 0;
    width: min(1024px, calc(100% - 36px));
  }
  body[data-lang="zh"] h1 {
    font-size: clamp(34px, 5.5vw, 60px);
    max-width: 100%;
  }
  body[data-lang="zh"] h2 {
    font-size: clamp(26px, 4.2vw, 44px);
  }
  .hero-content { padding: 96px 0 40px; }
  .hero-stats dt { font-size: clamp(32px, 4.5vw, 44px); }
  .intro-layout {
    grid-template-columns: 1fr 280px;
    gap: 36px;
  }
  .mobius-logo-img { max-width: 260px; }
  .ip-grid { gap: 12px; }
  .founder-panel { gap: 24px; }
  .founder-photo { width: 160px; }
}

/* ---------- Mobile (<768px) ---------- */
@media (max-width: 767px) {
  body {
    font-size: 15px;
    line-height: 1.6;
  }

  /* Section / 容器 */
  .section {
    width: 100%;
    padding: 40px 16px;
    box-sizing: border-box;
  }
  .section-heading { margin-bottom: 20px; }

  /* Header 紧凑 */
  .site-header {
    padding: 10px 16px;
    gap: 12px;
  }
  .brand-mark {
    min-height: 36px;
    padding: 0 10px;
    font-size: 13px;
  }
  .language-switch { padding: 3px; }
  .language-option {
    min-height: 28px;
    padding: 0 8px;
    font-size: 12px;
  }

  /* Hero 大 */
  .hero-section {
    min-height: auto;
    padding-bottom: 32px;
  }
  .hero-content {
    width: 100%;
    padding: 80px 16px 32px;
    box-sizing: border-box;
  }
  .hero-section .eyebrow {
    font-size: 12px;
    margin-bottom: 10px;
  }
  body[data-lang="zh"] h1 {
    font-size: clamp(30px, 8.5vw, 44px);
    line-height: 1.08;
    max-width: 100%;
  }
  body[data-lang="zh"] #hero-title {
    row-gap: 10px;
  }
  body[data-lang="zh"] #hero-title span:nth-child(n + 2) {
    font-size: clamp(22px, 6.5vw, 32px);
  }
  body[data-lang="en"] h1 {
    font-size: clamp(30px, 8.5vw, 44px);
    line-height: 1.08;
    max-width: 100%;
  }
  body[data-lang="en"] #hero-title {
    row-gap: 10px;
  }
  body[data-lang="en"] #hero-title span:nth-child(n + 2) {
    font-size: clamp(20px, 5.5vw, 28px);
  }
  .hero-slogan {
    margin-top: 18px;
    padding-left: 13px;
    gap: 7px;
    max-width: 100%;
  }
  .hero-slogan-lead {
    font-size: clamp(19px, 5.8vw, 26px);
    line-height: 1.3;
  }
  .hero-slogan-trail {
    font-size: 12.5px;
    letter-spacing: 0.07em;
  }
  .hero-copy {
    max-width: 100%;
    font-size: 14px;
    margin-top: 16px;
  }
  body[data-lang="en"] .hero-copy { max-width: 100%; }
  .hero-actions { margin-top: 20px; }
  .hero-stats {
    grid-template-columns: 1fr 1fr;
    gap: 14px;
    margin-top: 28px;
  }
  .hero-stats dt { font-size: 26px; }
  .hero-stats dd { font-size: 12px; }
  .hero-stats-note { font-size: 11px; margin-top: 14px; }

  /* h2 通用 */
  body[data-lang="zh"] h2,
  body[data-lang="en"] h2 {
    font-size: clamp(22px, 6.5vw, 32px);
    max-width: 100%;
    line-height: 1.2;
  }

  /* IP / video / intro 标题在手机端允许换行,不要被 nowrap 截断 */
  #ip-title,
  #video-section-title,
  #intro-title {
    line-height: 1.4;
    word-break: break-word;
  }
  #ip-title .title-segment,
  #video-section-title .title-segment {
    display: block;
    white-space: normal;
    margin-right: 0;
  }
  #ip-title .title-sep,
  #video-section-title .title-sep,
  #intro-title .title-sep,
  .logic-sep {
    display: none;
  }
  .logic-line2 {
    display: block;
  }
  #intro-title .title-segment {
    white-space: normal;
    margin-right: 0;
  }
  /* 手机端 Möbius logo 居中 */
  .intro-right {
    justify-content: center;
  }
  .mobius-logo-img,
  body[data-lang="en"] .mobius-logo-img {
    transform: none;
    margin: 0 auto;
  }
  .section-heading .eyebrow {
    font-size: clamp(18px, 4vw, 22px);
    margin-bottom: 4px;
  }
  .section-subtitle { font-size: 13px; }

  /* Intro section */
  .intro-layout {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  .intro-right { order: 2; }
  .mobius-logo-img { max-width: 200px; }
  .intro-poetic {
    max-width: 100%;
    padding: 0;
    margin: 24px 0 0;
  }
  .intro-poetic-block { font-size: 15px; line-height: 1.6; }
  .intro-poetic-block + .intro-poetic-block { margin-top: 1.2em; }

  /* IP section */
  .ip-grid {
    grid-template-columns: 1fr;
    gap: 14px;
  }
  .ip-panel {
    grid-template-columns: 1fr;
    min-height: auto;
  }
  .ip-portrait {
    min-height: 240px;
    align-items: center;
  }
  .ip-portrait img {
    width: 60%;
    max-height: 220px;
  }
  .ip-copy {
    padding: 18px;
  }
  .panel-tag {
    font-size: 22px;
    margin-bottom: 10px;
  }
  .ip-panel h3 { font-size: 16px; }
  .ip-panel p { font-size: 14px; }

  /* Apps grid:单列堆叠,覆盖基础 [data-cols] 规则 */
  .app-grid,
  .app-grid[data-cols="2"],
  .app-grid[data-cols="4"] {
    grid-template-columns: 1fr;
    max-width: none;
    gap: 10px;
  }
  .app-card {
    min-height: auto;
    padding: 16px;
  }
  .app-thesis { font-size: 13.5px; }
  .app-action { font-size: 12px; padding: 6px 10px; min-height: 32px; }
  .app-info-panel { font-size: 13px; }
  .app-expansion-rail { min-height: 200px; }
  .future-title strong { font-size: 22px; }

  /* Video grid (已有 540 breakpoint,补强) */
  .video-grid { gap: 10px; }
  .video-card { padding: 18px 16px; min-height: auto; }
  .video-card-name strong { font-size: 17px; }
  .video-card-copy { font-size: 13.5px; }

  /* Founder */
  .founder-panel {
    grid-template-columns: 1fr;
    gap: 18px;
    padding: 18px;
    align-items: start;
  }
  .founder-panel > * { min-width: 0; }
  .founder-photo-wrap {
    width: 180px;
    aspect-ratio: 1;
    height: auto;
    margin: 0 auto;
  }
  .founder-photo {
    width: 100%;
    height: 100%;
  }
  .founder-copy { min-width: 0; }
  .founder-copy-text {
    overflow-wrap: break-word;
    word-wrap: break-word;
  }
  .founder-copy p { font-size: 15px; line-height: 1.65; }
  .founder-tags {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
  }
  body[data-lang="en"] .founder-tags {
    grid-template-columns: repeat(2, max-content);
    justify-content: start;
    gap: 6px 8px;
  }
  .founder-tags span {
    font-size: 13px;
    padding: 6px 14px;
    text-align: center;
  }
  body[data-lang="en"] .founder-tags span {
    font-size: 10.5px;
    padding: 3px 8px;
    min-height: 26px;
    font-weight: 700;
  }

  /* Footer mini */
  .site-footer-mini {
    padding: 64px 16px 32px;
    gap: 10px;
  }
  .site-footer-mini .footer-handle { font-size: 13px; }
  .site-footer-mini svg { width: 16px; height: 16px; }

  /* WeChat QR modal */
  .wechat-modal-inner {
    width: calc(100% - 32px);
    padding: 24px 20px;
  }
  .wechat-qr-img { max-width: 240px; }

  /* Buttons 通用 */
  .button { font-size: 14px; min-height: 40px; padding: 0 16px; }
  .button.primary { padding: 0 20px; }
}


/* X icon + @handle 合并为一个 link */
.site-footer-mini .footer-x-combined {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
}

/* === 维护横幅 maintenance-banner — 开关在 index.html 顶部 data-show 属性 === */
/* 与 fixed header 协作:JS 把 banner 高度写到 :root --maintenance-h,header 用它做 top 偏移 */
.site-header { top: var(--maintenance-h, 0); }
.maintenance-banner {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 60;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.625rem 1.25rem;
  background: linear-gradient(180deg, #f9f0db 0%, #f4e7c8 100%);
  border-bottom: 1px solid rgba(185, 147, 90, 0.5);
  color: var(--ink);
  font-size: 0.92rem;
  line-height: 1.5;
  box-shadow: 0 1px 0 rgba(17, 19, 22, 0.04);
}
.maintenance-banner[data-show="false"],
.maintenance-banner.is-dismissed {
  display: none;
}
.maintenance-banner__dot {
  flex: 0 0 auto;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--mobi-gold);
  box-shadow: 0 0 0 0 rgba(185, 147, 90, 0.55);
  animation: maintenancePulse 2.2s ease-out infinite;
}
@keyframes maintenancePulse {
  0%   { box-shadow: 0 0 0 0 rgba(185, 147, 90, 0.55); }
  70%  { box-shadow: 0 0 0 10px rgba(185, 147, 90, 0); }
  100% { box-shadow: 0 0 0 0 rgba(185, 147, 90, 0); }
}
.maintenance-banner__text {
  margin: 0;
  flex: 1 1 auto;
}
.maintenance-banner__text strong {
  margin-right: 0.5rem;
  color: #6c4f1f;
  font-weight: 600;
}
.maintenance-banner__close {
  flex: 0 0 auto;
  background: transparent;
  border: 0;
  color: var(--muted);
  font-size: 1.05rem;
  line-height: 1;
  padding: 0.3rem 0.55rem;
  cursor: pointer;
  border-radius: 999px;
  transition: background 0.15s ease, color 0.15s ease;
}
.maintenance-banner__close:hover {
  color: var(--ink);
  background: rgba(17, 19, 22, 0.06);
}
@media (max-width: 600px) {
  .maintenance-banner {
    align-items: flex-start;
    padding: 0.55rem 0.85rem;
    font-size: 0.85rem;
  }
  .maintenance-banner__dot {
    margin-top: 0.5rem;
  }
  .maintenance-banner__text strong {
    display: block;
    margin: 0 0 0.15rem 0;
  }
}

/* ---------- 人间说明书 Field Notes(首页模块 + /field-notes 专区页共用) ---------- */
/* 视觉纪律:纸白/墨黑沿用全站;哑光金(--mobi-gold)只落在序号、价格、按钮描边三处点睛。 */

.desktop-nav a.is-active {
  color: var(--paper);
  background: rgba(251, 250, 247, 0.12);
}

.fn-hero {
  padding-top: 150px;
  padding-bottom: 24px;
}

.fn-page-title {
  max-width: 860px;
  margin: 0;
  font-size: clamp(30px, 5vw, 58px);
  line-height: 1.02;
}

.fn-slogan {
  margin: 10px 0 0;
  color: var(--muted);
  font-size: clamp(15px, 1.5vw, 18px);
  font-weight: 600;
  letter-spacing: 0.02em;
}

.fn-intro {
  max-width: 720px;
  margin: 18px 0 0;
  color: var(--ink);
  font-size: 15px;
  line-height: 1.7;
}

.fn-list-section {
  padding-top: 28px;
}

.fn-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.fn-card {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(251, 250, 247, 0.72);
  box-shadow: 0 1px 0 rgba(251, 250, 247, 0.72) inset;
  transition: transform 180ms ease, border-color 180ms ease;
}

.fn-card:hover {
  transform: translateY(-1px);
  border-color: rgba(185, 147, 90, 0.45);
}

.fn-card-body {
  display: flex;
  flex-direction: column;
  height: 100%;
  padding: 22px 22px 20px;
}

.fn-no {
  color: var(--mobi-gold);
  font-family: Georgia, "Songti SC", "STSong", serif;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.12em;
}

.fn-title {
  margin: 10px 0 0;
  color: var(--ink);
  font-size: 19px;
  font-weight: 760;
  line-height: 1.3;
}

.fn-tagline {
  margin: 10px 0 0;
  color: var(--ink);
  font-size: 14px;
  line-height: 1.6;
}

.fn-audience {
  margin: 8px 0 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.5;
}

.fn-card-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-top: auto;
  padding-top: 18px;
}

.fn-price {
  color: var(--mobi-gold);
  font-family: Georgia, "Songti SC", "STSong", serif;
  font-size: 17px;
  font-weight: 700;
}

.fn-buy {
  min-height: 38px;
  padding: 0 16px;
  color: var(--ink);
  background: transparent;
  border-color: rgba(185, 147, 90, 0.6);
  font-size: 13px;
}

.fn-buy:hover {
  background: rgba(185, 147, 90, 0.1);
  border-color: var(--mobi-gold);
}

.fn-buy.is-soon {
  color: var(--muted);
  border-color: var(--line);
}

/* 价格位:买断制下显示「买断解锁」标签(不各显各价) */
.fn-price-tag {
  font-family: inherit;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.02em;
}

/* 谁适合看:受众定位块(重点强调一人公司 / 独立生活) */
.fn-audience-note {
  max-width: 720px;
  margin: 24px auto 0;
  padding: 16px 20px;
  border-left: 3px solid var(--mobi-gold);
  border-radius: 0 8px 8px 0;
  background: rgba(185, 147, 90, 0.05);
}

.fn-audience-label {
  display: block;
  color: var(--mobi-gold);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.fn-audience-lead {
  margin: 8px 0 10px;
  color: var(--ink);
  font-size: 15px;
  font-weight: 600;
  line-height: 1.5;
}

.fn-audience-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.fn-audience-list li {
  position: relative;
  padding-left: 16px;
  color: var(--ink);
  font-size: 14px;
  line-height: 1.7;
}

.fn-audience-list li::before {
  content: "·";
  position: absolute;
  left: 4px;
  color: var(--mobi-gold);
  font-weight: 700;
}

/* 买断制横幅:整栏一个买断价 + 买断按钮 */
.fn-buyout-wrap {
  margin-top: 22px;
}

.fn-buyout {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  flex-wrap: wrap;
  max-width: 720px;
  margin: 0 auto;
  padding: 16px 22px;
  border: 1px solid rgba(185, 147, 90, 0.45);
  border-radius: 10px;
  background: rgba(185, 147, 90, 0.06);
}

.fn-buyout-text {
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-width: 0;
}

.fn-buyout-head {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.fn-buyout-price {
  color: var(--mobi-gold);
  font-family: Georgia, "Songti SC", "STSong", serif;
  font-size: 26px;
  font-weight: 700;
  line-height: 1;
}

.fn-buyout-badge {
  padding: 3px 9px;
  border: 1px solid rgba(185, 147, 90, 0.5);
  border-radius: 999px;
  background: rgba(185, 147, 90, 0.12);
  color: var(--mobi-gold);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.fn-buyout-title {
  color: var(--ink);
  font-size: 14px;
  line-height: 1.5;
}

.fn-buyout-note {
  color: var(--muted);
  font-size: 12px;
  line-height: 1.5;
}

.fn-buyout-cta {
  flex: none;
  min-height: 40px;
  padding: 0 20px;
  color: var(--paper);
  background: var(--mobi-gold);
  border-color: var(--mobi-gold);
  font-size: 14px;
  font-weight: 600;
}

.fn-buyout-cta:hover {
  background: #a8834c;
  border-color: #a8834c;
}

@media (max-width: 767px) {
  .fn-buyout {
    flex-direction: column;
    align-items: stretch;
    gap: 14px;
    text-align: center;
  }

  .fn-buyout-text {
    justify-content: center;
  }

  .fn-buyout-cta {
    width: 100%;
  }
}

/* 桌面「阅读全文」二维码 modal(由 field-notes.js 注入,设计语言同 wechat-modal) */
.fn-qr-modal {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
}

.fn-qr-modal[hidden] { display: none; }

.fn-qr-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(17, 19, 22, 0.55);
  cursor: pointer;
  animation: wechat-fade 0.18s ease;
}

.fn-qr-inner {
  position: relative;
  background: var(--paper, #fbfaf7);
  width: min(340px, calc(100% - 36px));
  border-radius: 14px;
  padding: 34px 28px 24px;
  box-shadow: 0 28px 60px rgba(17, 19, 22, 0.4);
  text-align: center;
  animation: wechat-pop 0.22s ease;
}

.fn-qr-close {
  position: absolute;
  top: 10px;
  right: 14px;
  background: transparent;
  border: 0;
  font-size: 28px;
  line-height: 1;
  color: var(--muted, #6e6259);
  cursor: pointer;
  padding: 6px 10px;
  border-radius: 6px;
}

.fn-qr-close:hover { background: rgba(17, 19, 22, 0.06); }

.fn-qr-article {
  margin: 0 0 16px;
  color: var(--ink);
  font-size: 15px;
  font-weight: 700;
  line-height: 1.4;
}

.fn-qr-box {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 216px;
  height: 216px;
  margin: 0 auto;
  padding: 8px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 10px;
}

.fn-qr-box img,
.fn-qr-box canvas {
  display: block;
  max-width: 100%;
}

.fn-qr-status {
  color: var(--muted);
  font-size: 13px;
  line-height: 1.6;
  padding: 0 12px;
}

.fn-qr-hint {
  margin: 16px 0 0;
  color: var(--ink);
  font-size: 14px;
}

.fn-qr-fallback {
  display: inline-block;
  margin-top: 10px;
  color: var(--muted);
  font-size: 12px;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.fn-qr-fallback:hover { color: var(--mobi-gold); }

/* 首页模块:标题区 + 买断横幅 + 最新卡片 + 查看全部 */
/* 首页《人间说明书》模块头部:左标题 + 右买断卡并排一行 */
.fn-home-head {
  display: flex;
  align-items: center;
  gap: 32px;
  margin-bottom: 28px;
}

.fn-home-head .section-heading {
  flex: 1 1 auto;
  min-width: 0;
  margin-bottom: 0;
}

.fn-home-head .fn-buyout-wrap {
  flex: 0 1 560px;
  min-width: 0;
  margin-top: 0;
}

/* 并排时卡片自己吃满右列(专区页那份仍是 720 居中) */
.fn-home-head .fn-buyout {
  max-width: none;
}

@media (max-width: 1023px) {
  .fn-home-head {
    flex-direction: column;
    align-items: stretch;
    gap: 20px;
  }

  .fn-home-head .fn-buyout-wrap {
    flex: 1 1 auto;
  }
}

.fn-home-actions {
  display: flex;
  justify-content: center;
  margin-top: 24px;
}

.fn-home-actions .button {
  color: var(--ink);
  background: transparent;
  border-color: rgba(185, 147, 90, 0.6);
}

.fn-home-actions .button:hover {
  background: rgba(185, 147, 90, 0.1);
  border-color: var(--mobi-gold);
}

/* 专区页页脚:免责声明 */
.fn-footer {
  flex-direction: column;
  gap: 14px;
}

.fn-disclaimer {
  max-width: 720px;
  margin: 0;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.6;
  text-align: center;
}

@media (max-width: 1023px) and (min-width: 768px) {
  .fn-hero {
    padding-top: 120px;
  }
}

@media (max-width: 767px) {
  .fn-hero {
    padding-top: 96px;
    padding-bottom: 8px;
  }

  .fn-list-section {
    padding-top: 16px;
  }

  .fn-grid {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .fn-card-body {
    padding: 18px 16px 16px;
  }

  .fn-card-foot {
    flex-direction: column;
    align-items: stretch;
    gap: 10px;
  }

  .fn-price {
    text-align: left;
  }

  .fn-buy {
    width: 100%;
  }
}

/* ── 专栏区块(专区页可容纳多个专栏)────────────────────────────
   两个专栏共用 .fn-column + 现有 .fn-page-title / .fn-slogan / .fn-intro,
   视觉权重一致;第二个起加一道分隔线区隔,不做主次强弱。 */
.fn-column + .fn-column {
  border-top: 1px solid var(--line);
}

/* 首页变体:紧跟《人间说明书》模块的独立专栏区块,和别的首页模块同一节奏 */
.fn-column-home .fn-intro {
  margin-top: 0;
}

/* 书名号《…》整体不断行(中文任意断字,专栏名不能被切成两半) */
.fn-nobreak {
  white-space: nowrap;
}

.fn-column-status {
  padding: 4px 10px;
  color: var(--mobi-gold);
  border: 1px solid rgba(185, 147, 90, 0.45);
  border-radius: 999px;
  background: rgba(185, 147, 90, 0.06);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.04em;
  white-space: nowrap;
}

/* 还没有购买入口时的纯文字提示:不可点、不跳转 */
.fn-column-hint {
  max-width: 720px;
  margin: 20px 0 0;
  padding: 12px 16px;
  color: var(--muted);
  border-left: 3px solid var(--line);
  border-radius: 0 8px 8px 0;
  background: rgba(17, 19, 22, 0.03);
  font-size: 14px;
  line-height: 1.6;
}

.fn-column-buy {
  margin: 20px 0 0;
}

.fn-column-related-wrap {
  margin: 16px 0 0;
}

.fn-column-related {
  color: var(--ink);
  border-bottom: 1px solid rgba(185, 147, 90, 0.45);
  font-size: 14px;
  font-weight: 600;
  line-height: 1.6;
  transition: color 180ms ease, border-color 180ms ease;
}

.fn-column-related:hover {
  color: var(--mobi-gold);
  border-color: var(--mobi-gold);
}

/* 未上线的专栏卡:同一张卡(.fn-buyout),只是位置上没有 CTA,文字块自己撑满 */
.fn-buyout-soon .fn-buyout-text {
  flex: 1 1 auto;
}

/* 锚点跳转净空:顶栏是浮层(position:fixed),不留 scroll-margin 的话
   跳过去标题会压在栏底下。导航「说明书 ▾」三项全靠这个才落得准。 */
#apps,
#videos,
#field-notes,
.fn-column-mount {
  scroll-margin-top: 76px;
}

/* ⑥ 过渡句:从「产品与内容」转到「跑这一切的公司」 */
/* 应用矩阵折叠:首页只到「数字游民」,其后由这个按钮通向全量页 */
.matrix-more-actions {
  display: flex;
  justify-content: center;
  margin-top: 28px;
}

.matrix-more-link {
  color: var(--ink);
  background: transparent;
  border-color: rgba(185, 147, 90, 0.6);
}

.matrix-more-link:hover {
  background: rgba(185, 147, 90, 0.1);
  border-color: var(--mobi-gold);
}

/* 全量应用页:顶栏是浮层,给标题留出净空(同 .fn-hero 的处理) */
.apps-page-section {
  padding-top: 150px;
}

@media (max-width: 767px) {
  .fn-column + .fn-column {
    padding-top: 56px;
  }

  .fn-column-hint {
    padding: 10px 14px;
    font-size: 13px;
  }

  .apps-page-section {
    padding-top: 96px;
  }
}


/* ==========================================================================
   窄屏首屏(≤768px):不加载视频,用单独构图的竖版静图
   断点与 index.html 里视频闸门的 min-width:769px 严格互补 —— 否则会出现
   「视频已经不下、却还在用横版图」的 761–768px 缝隙。
   放在文件末尾是为了压过前面 max-width:760/767px 两个块里的 .hero-overlay。
   ========================================================================== */
@media (max-width: 768px) {
  /*
    竖版图是单独出的 9:16 构图(源 1584×2816),不是从横版视频里裁的。
    窄屏盒子 390×857 CSS = 设备 780×1714;交付 1000×1778 是缩小使用,不放大。
  */
  .hero-poster {
    background-image: url("/assets/hero-poster-narrow.webp");
    background-position: center;
  }

  /*
    窄屏文案横跨整个宽度,金色副标题(#d6be8a)会压到托罗的浅色胸毛上,
    未加遮罩时实测对比度只有 1.56:1,连大文本的 3:1 都不到。

    副标题实测位置是距顶 28–35%(不是靠底部),所以自下而上的渐变对它无效 ——
    必须用带状遮罩:顶部 22% 完全不压(留住两只动物的脸),从 33% 起压暗,
    往下缓慢加深。

    最差一段是托罗的浅色胸毛(竖图源亮度 175/255),压后对比度 1.56:1 → 4.45:1。
    副标题 22.62px / weight 760 属 WCAG 大文本,阈值 3:1,这里留了足够余量。
  */
  /*
    窄屏 = /loop 同调 + 一层轻带状遮罩,三项都是算出来的,不是叠着试出来的:

    1. 横向坡放缓(0.55 → 0.30 @40% → 0.22)。loop 的 0.78 起点是给横版图、
       文案只占左半屏设计的;窄屏文案横跨整宽,而莫比正好坐在左边,
       照搬 0.78 会把它整只压进阴影(实测总 alpha 到 0.83,猫就没了)。
    2. 纵向沿用 loop 原值。
    3. 带状层只补 0.30 —— 竖图上金色副标题(源亮度 175/255)光靠 loop 全强度
       只有 2.28:1,按 4:1 反推需要额外 0.305。叠加后实测约 4.17:1。
       顶部 18% 不压,留住两只动物的脸。
  */
  .hero-overlay {
    background:
      linear-gradient(
        180deg,
        transparent 0%,
        transparent 18%,
        rgba(17, 19, 22, 0.3) 30%,
        rgba(17, 19, 22, 0.34) 60%,
        rgba(17, 19, 22, 0.38) 100%
      ),
      linear-gradient(90deg, rgba(17, 19, 22, 0.55) 0%, rgba(17, 19, 22, 0.3) 40%, rgba(17, 19, 22, 0.22) 100%),
      linear-gradient(0deg, rgba(17, 19, 22, 0.88) 0%, rgba(17, 19, 22, 0.1) 48%, rgba(17, 19, 22, 0.28) 100%);
  }
}


/* ===================================================
 * 中国官网(mobiverseai.com)追加样式 —— 只新增,不改上方既有规则
 * =================================================== */

/* -------- #course 课程横幅:版式借 .pipeline-banner,改纯深色底 -------- */

.course-banner {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 14px;
  overflow: hidden;
  margin-top: 18px;
  padding: 40px 36px;
  border: 1px solid rgba(185, 147, 90, 0.45);
  border-radius: 10px;
  background: linear-gradient(120deg, #1b1c22, #252630);
  color: var(--paper);
  transition: border-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
}

.course-banner:hover {
  border-color: var(--mobi-gold);
  box-shadow: var(--shadow);
  transform: translateY(-2px);
}

.course-eyebrow {
  margin: 0;
  font-size: 13px;
  letter-spacing: 0.12em;
  color: var(--mobi-gold);
  font-weight: 600;
}

.course-title {
  margin: 0;
  font-size: clamp(20px, 2.4vw, 30px);
  font-weight: 760;
  line-height: 1.4;
}

.course-copy {
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
  color: rgba(251, 250, 247, 0.72);
}

.course-cta {
  margin-top: 10px;
  display: inline-flex;
  align-items: center;
  padding: 12px 22px;
  border-radius: 8px;
  background: var(--mobi-gold);
  color: #111316;
  font-weight: 700;
  font-size: 15px;
  text-decoration: none;
  transition: transform 0.18s ease, box-shadow 0.18s ease;
}

.course-cta:hover {
  transform: translateY(-1px);
  box-shadow: 0 10px 22px rgba(17, 19, 22, 0.28);
}

@media (max-width: 767px) {
  .course-banner {
    padding: 26px 20px;
    gap: 12px;
  }
}

/* -------- 应用矩阵:两张主推卡下方的一行国际站指引 -------- */

.matrix-intl-note {
  margin: 22px 0 0;
  font-size: 13.5px;
  line-height: 1.6;
  color: var(--muted);
  text-align: center;
}

.matrix-intl-note a {
  color: var(--mobi-gold);
  text-decoration: none;
  border-bottom: 1px solid rgba(185, 147, 90, 0.35);
  transition: border-color 0.18s ease;
}

.matrix-intl-note a:hover {
  border-bottom-color: var(--mobi-gold);
}

/* -------- 放映室卡片内:账号关注链接行(小字) -------- */

.video-card-follows {
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 6px 14px;
  font-size: 12.5px;
  line-height: 1.5;
}

.video-card-follows a {
  color: var(--mobi-gold);
  text-decoration: none;
  border-bottom: 1px dashed rgba(185, 147, 90, 0.4);
  transition: border-color 0.18s ease, color 0.18s ease;
}

.video-card-follows a:hover {
  color: var(--ink);
  border-bottom-color: var(--ink);
}

/* -------- 页脚:账号矩阵行 + 备案行 -------- */

.site-footer-mini .footer-accounts {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 4px 18px;
  font-size: 13.5px;
  letter-spacing: 0.02em;
}

.footer-icp {
  margin: 0;
  padding: 0 24px 48px;
  text-align: center;
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--muted, #6e6259);
}

/* 账号矩阵行出现后,页脚改竖排:账号行 + 微信按钮 */
.site-footer-mini {
  flex-direction: column;
  gap: 18px;
  padding-bottom: 24px;
}