/**
 * chrome.css — 页面外壳：加载层、顶部导航、章节轨、全屏菜单、自定义光标、指令面板。
 */

@layer chrome {
  /* ── 加载层 ────────────────────────────────────────────────────────────── */
  .loader {
    position: fixed;
    inset: 0;
    z-index: var(--z-loader);
    display: grid;
    place-items: center;
    background: var(--ink-0);
    transition: opacity 1s var(--ease-in-out), visibility 0s linear 1s;
  }

  /* 没有脚本、或脚本没跑起来：不显示加载层，直接看静态内容 */
  html.no-js .loader,
  html.is-static .loader {
    display: none;
  }

  .loader.is-done {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
  }

  .loader__inner {
    display: grid;
    justify-items: center;
    gap: 1.5rem;
    transition: scale 1s var(--ease-in-out), opacity 0.6s;
  }

  .loader.is-done .loader__inner {
    opacity: 0;
    scale: 1.12;
  }

  .loader__orbs {
    display: flex;
    gap: 0.9rem;
  }

  .loader__orbs i {
    width: 10px;
    height: 10px;
    border: 1px solid var(--paper-4);
    border-radius: 50%;
    transition: background 0.4s, border-color 0.4s, box-shadow 0.4s, scale 0.5s var(--ease-back);
  }

  .loader__orbs i.is-lit {
    border-color: transparent;
    background: radial-gradient(circle at 35% 35%, var(--amber-hi), var(--amber) 60%, var(--amber-lo));
    box-shadow: 0 0 16px rgb(255 157 46 / 0.8);
    scale: 1.15;
  }

  .loader__count {
    font-family: var(--font-latin);
    font-size: clamp(3.5rem, 2rem + 7vw, 7rem);
    line-height: 1;
    font-variant-numeric: tabular-nums;
  }

  .loader__count span {
    font-size: 0.34em;
    color: var(--paper-3);
  }

  .loader__brand {
    position: absolute;
    bottom: clamp(1.25rem, 4vh, 2.5rem);
    left: var(--gutter);
    display: flex;
    align-items: baseline;
    gap: 1rem;
    font-family: var(--font-serif);
    font-weight: 900;
    letter-spacing: 0.14em;
  }

  /* ── 顶部导航 ──────────────────────────────────────────────────────────── */
  .nav {
    position: fixed;
    inset: 0 0 auto;
    z-index: var(--z-nav);
    display: grid;
    grid-template-columns: auto 1fr auto;
    align-items: center;
    gap: clamp(1rem, 3vw, 3rem);
    height: var(--nav-h);
    padding-inline: var(--gutter);
    transition: transform 0.7s var(--ease-out);
  }

  .nav::before {
    content: "";
    position: absolute;
    inset: 0;
    z-index: -1;
    background: linear-gradient(rgb(6 5 4 / 0.78), rgb(6 5 4 / 0));
    opacity: 0;
    transition: opacity 0.5s;
    pointer-events: none;
  }

  .nav.is-scrolled::before {
    opacity: 1;
  }

  .nav.is-hidden {
    transform: translateY(-110%);
  }

  .is-armed .nav {
    opacity: 0;
    transition: transform 0.7s var(--ease-out), opacity 1.2s var(--ease-out) 0.3s;
  }

  .is-armed.is-ready .nav {
    opacity: 1;
  }

  .nav__brand {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
  }

  .nav__orb {
    flex: none;
    width: 0.7rem;
    height: 0.7rem;
    border-radius: 50%;
    background: radial-gradient(circle at 35% 35%, var(--amber-hi), var(--amber) 58%, var(--amber-lo));
    box-shadow: 0 0 12px rgb(255 157 46 / 0.7);
  }

  .nav__name {
    font-family: var(--font-serif);
    font-size: 1.125rem;
    font-weight: 900;
    letter-spacing: 0.16em;
  }

  .nav__role {
    font-family: var(--font-latin);
    font-size: 1rem;
    font-style: italic;
    color: var(--paper-3);
  }

  .nav__links {
    display: flex;
    justify-self: end;
    gap: clamp(1rem, 1.9vw, 2.1rem);
  }

  .nav__links a {
    position: relative;
    display: inline-flex;
    align-items: baseline;
    gap: 0.45em;
    padding-block: 0.6rem;
    font-size: 0.875rem;
    line-height: 1.2;
    color: var(--paper-2);
    transition: color 0.3s;
  }

  .nav__links a::after {
    content: "";
    position: absolute;
    inset: auto 0 0.25rem;
    height: 1px;
    background: var(--amber);
    transform: scaleX(0);
    transform-origin: right center;
    transition: transform 0.5s var(--ease-out);
  }

  .nav__links a:hover,
  .nav__links a.is-current {
    color: var(--paper);
  }

  .nav__links a:hover::after,
  .nav__links a.is-current::after {
    transform: none;
    transform-origin: left center;
  }

  .nav__num {
    font-family: var(--font-mono);
    font-size: 0.625rem;
    color: var(--paper-4);
    transition: color 0.3s;
  }

  .nav__links a.is-current .nav__num {
    color: var(--amber);
  }

  .nav__tools {
    display: flex;
    align-items: center;
    gap: 0.75rem;
  }

  .nav__cmd {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.45rem 0.55rem 0.45rem 0.95rem;
    border: 1px solid var(--line-2);
    border-radius: 999px;
    background: rgb(11 10 9 / 0.45);
    font-size: 0.8125rem;
    line-height: 1.2;
    transition: border-color 0.3s, background 0.3s;
  }

  .nav__cmd:hover {
    border-color: var(--amber);
  }

  .nav__burger {
    display: none;
    place-content: center;
    gap: 6px;
    width: 2.75rem;
    height: 2.75rem;
    border: 1px solid var(--line-2);
    border-radius: 50%;
    background: rgb(11 10 9 / 0.45);
  }

  .nav__burger i {
    display: block;
    width: 1rem;
    height: 1px;
    background: var(--paper);
    transition: translate 0.4s var(--ease-out), rotate 0.4s var(--ease-out);
  }

  .menu-open .nav__burger i:first-child {
    translate: 0 3.5px;
    rotate: 45deg;
  }

  .menu-open .nav__burger i:last-child {
    translate: 0 -3.5px;
    rotate: -45deg;
  }

  @media (max-width: 1240px) {
    .nav__role {
      display: none;
    }
  }

  @media (max-width: 1100px) {
    .nav__links {
      display: none;
    }

    .nav__tools {
      grid-column: 3;
    }

    .nav__burger {
      display: grid;
    }
  }

  @media (max-width: 520px) {
    .nav__cmd span {
      display: none;
    }

    .nav__cmd {
      padding: 0.45rem 0.55rem;
    }
  }

  /* ── 章节轨（右侧七颗点） ──────────────────────────────────────────────── */
  .rail {
    position: fixed;
    top: 50%;
    right: clamp(0.7rem, 1.5vw, 1.6rem);
    z-index: var(--z-rail);
    translate: 0 -50%;
  }

  .is-armed .rail {
    opacity: 0;
    transition: opacity 1.2s var(--ease-out) 1.6s;
  }

  .is-armed.is-ready .rail {
    opacity: 1;
  }

  .rail ol {
    position: relative;
    display: grid;
    gap: 1.05rem;
  }

  .rail ol::before {
    content: "";
    position: absolute;
    top: 0.4rem;
    right: 4.5px;
    bottom: 0.4rem;
    width: 1px;
    background: var(--line);
  }

  .rail a {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 0.7rem;
    padding-block: 0.1rem;
  }

  .rail__orb {
    position: relative;
    width: 10px;
    height: 10px;
    border: 1px solid var(--paper-4);
    border-radius: 50%;
    background: var(--ink-1);
    transition: background 0.4s, border-color 0.4s, box-shadow 0.4s, scale 0.5s var(--ease-back);
  }

  .rail a.is-passed .rail__orb {
    border-color: var(--amber-lo);
    background: var(--amber-lo);
  }

  .rail a.is-current .rail__orb {
    border-color: var(--amber);
    background: var(--amber);
    box-shadow: 0 0 0 4px rgb(255 157 46 / 0.14), 0 0 14px rgb(255 157 46 / 0.85);
    scale: 1.2;
  }

  .rail__label {
    padding: 0.2rem 0.6rem;
    border-radius: 999px;
    background: rgb(6 5 4 / 0.8);
    font-size: 0.75rem;
    line-height: 1.4;
    white-space: nowrap;
    opacity: 0;
    translate: 0.4rem 0;
    transition: opacity 0.3s, translate 0.4s var(--ease-out);
    pointer-events: none;
  }

  .rail a:hover .rail__label,
  .rail a:focus-visible .rail__label {
    opacity: 1;
    translate: 0;
  }

  @media (max-width: 1100px) {
    .rail {
      display: none;
    }
  }

  /* ── 全屏菜单（窄屏） ──────────────────────────────────────────────────── */
  .menu {
    position: fixed;
    inset: 0;
    z-index: var(--z-menu);
    display: grid;
    align-content: center;
    gap: 2rem;
    padding: calc(var(--nav-h) + 1rem) var(--gutter) 2rem;
    overflow-y: auto;
    background: rgb(6 5 4 / 0.94);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.5s var(--ease-out), visibility 0s linear 0.5s;
  }

  .menu-open .menu {
    opacity: 1;
    visibility: visible;
    transition-delay: 0s;
  }

  .menu__list {
    display: grid;
  }

  .menu__list a {
    display: grid;
    grid-template-columns: 2.25rem 1fr auto;
    align-items: baseline;
    gap: 0.75rem;
    padding-block: 0.7rem;
    border-bottom: 1px solid var(--line);
    opacity: 0;
    translate: 0 1rem;
    transition: opacity 0.6s var(--ease-out), translate 0.8s var(--ease-out);
    transition-delay: calc(var(--i) * 45ms + 80ms);
  }

  .menu-open .menu__list a {
    opacity: 1;
    translate: 0;
  }

  .menu__num {
    font-family: var(--font-mono);
    font-size: 0.6875rem;
    color: var(--amber);
  }

  .menu__zh {
    font-family: var(--font-serif);
    font-size: clamp(1.75rem, 8vw, 2.75rem);
    font-weight: 900;
    line-height: 1.25;
    letter-spacing: 0.08em;
  }

  .menu__en {
    font-family: var(--font-latin);
    font-size: 1.125rem;
    font-style: italic;
    color: var(--paper-3);
  }

  .menu__foot {
    font-size: 0.8125rem;
    color: var(--paper-3);
  }

  /* ── 自定义光标 ────────────────────────────────────────────────────────── */
  html.has-cursor,
  html.has-cursor * {
    cursor: none !important;
  }

  .cursor {
    position: fixed;
    top: 0;
    left: 0;
    z-index: var(--z-cursor);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s;
  }

  html:not(.has-cursor) .cursor {
    display: none;
  }

  .cursor.is-on {
    opacity: 1;
  }

  .cursor__dot {
    position: absolute;
    top: -4px;
    left: -4px;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--amber);
    box-shadow: 0 0 10px rgb(255 157 46 / 0.9);
    transition: scale 0.4s var(--ease-out), background 0.3s, box-shadow 0.3s;
  }

  .cursor.is-link .cursor__dot {
    background: transparent;
    box-shadow: 0 0 0 1px var(--amber), 0 0 12px rgb(255 157 46 / 0.6);
    scale: 2.1;
  }

  .cursor.is-down .cursor__dot {
    scale: 0.7;
  }

  /* 蓄力进度环：--charge 由脚本写入 */
  .cursor__ring {
    position: absolute;
    top: -22px;
    left: -22px;
    width: 44px;
    height: 44px;
    rotate: -90deg;
    opacity: min(1, var(--charge, 0) * 5);
    scale: calc(1.25 - var(--charge, 0) * 0.25);
  }

  .cursor__ring circle {
    fill: none;
    stroke: var(--amber-hi);
    stroke-width: 1.5;
    stroke-linecap: round;
    stroke-dasharray: calc(var(--charge, 0) * 125.6) 125.6;
  }

  .cursor__label {
    position: absolute;
    top: 14px;
    left: 16px;
    padding: 0.3em 0.75em;
    border-radius: 999px;
    background: var(--amber);
    color: var(--ink-0);
    font-family: var(--font-mono);
    font-size: 0.6875rem;
    line-height: 1.5;
    letter-spacing: 0.06em;
    white-space: nowrap;
    opacity: 0;
    scale: 0.7;
    transform-origin: left top;
    transition: opacity 0.25s, scale 0.4s var(--ease-back);
  }

  .cursor.has-label .cursor__label {
    opacity: 1;
    scale: 1;
  }

  html.is-charging {
    user-select: none;
    -webkit-user-select: none;
  }

  /* ── 指令面板 ──────────────────────────────────────────────────────────── */
  .palette {
    position: fixed;
    inset: 0;
    z-index: var(--z-palette);
    display: grid;
    align-items: start;
    justify-items: center;
    padding: clamp(4rem, 16vh, 10rem) 1rem 1rem;
  }

  .palette__scrim {
    position: absolute;
    inset: 0;
    background: rgb(6 5 4 / 0.72);
    opacity: 0;
    transition: opacity 0.3s;
  }

  .palette__panel {
    position: relative;
    display: grid;
    grid-template-rows: auto minmax(0, 1fr) auto;
    width: min(40rem, 100%);
    max-height: min(34rem, 70vh);
    overflow: hidden;
    border: 1px solid var(--line-2);
    border-radius: 12px;
    background: rgb(20 18 16 / 0.96);
    box-shadow: 0 2.5rem 6rem rgb(0 0 0 / 0.6), 0 0 0 1px rgb(255 157 46 / 0.06);
    opacity: 0;
    translate: 0 -0.75rem;
    scale: 0.985;
    transition: opacity 0.3s, translate 0.45s var(--ease-out), scale 0.45s var(--ease-out);
  }

  .palette.is-open .palette__scrim,
  .palette.is-open .palette__panel {
    opacity: 1;
    translate: 0;
    scale: 1;
  }

  .palette__field {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem 1.1rem;
    border-bottom: 1px solid var(--line);
  }

  .palette__prompt {
    font-family: var(--font-mono);
    font-size: 1.125rem;
    color: var(--amber);
  }

  .palette__input {
    flex: 1;
    min-width: 0;
    border: 0;
    outline: 0;
    background: none;
    font-size: 1.0625rem;
    caret-color: var(--amber);
  }

  .palette__input::placeholder {
    color: var(--paper-4);
  }

  .palette__list {
    padding: 0.4rem;
    overflow-y: auto;
    overscroll-behavior: contain;
  }

  .palette__group {
    padding: 0.85rem 0.75rem 0.35rem;
    font-family: var(--font-mono);
    font-size: 0.6875rem;
    letter-spacing: 0.12em;
    color: var(--paper-4);
  }

  .palette__item {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 1rem;
    width: 100%;
    padding: 0.6rem 0.75rem;
    border-radius: 7px;
    font-size: 0.9375rem;
    line-height: 1.5;
    text-align: left;
  }

  .palette__item.is-active {
    background: rgb(255 157 46 / 0.13);
    box-shadow: inset 2px 0 0 var(--amber);
  }

  .palette__item.is-disabled {
    color: var(--paper-4);
  }

  .palette__title {
    white-space: pre;
  }

  .palette__hint {
    overflow: hidden;
    font-family: var(--font-mono);
    font-size: 0.6875rem;
    letter-spacing: 0.04em;
    text-overflow: ellipsis;
    white-space: nowrap;
    color: var(--paper-3);
  }

  .palette__empty {
    padding: 1.5rem 0.75rem;
    color: var(--paper-3);
  }

  .palette__foot {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem 1.25rem;
    padding: 0.65rem 1.1rem;
    border-top: 1px solid var(--line);
    font-size: 0.75rem;
    color: var(--paper-3);
  }

  .palette__foot kbd {
    margin-right: 0.3em;
  }
}

/* ── 静态降级（没有脚本 / 脚本没跑起来 / 本地双击打开）：把依赖脚本的部件收起来 ── */
html:is(.no-js, .is-static) :is(.nav__tools, .rail, .hud, .hero__hint, .hero__clock, .skills__hint, .footer__travel, .orgchart, .block:has(> .labs)) {
  display: none;
}

html:is(.no-js, .is-static) .nav {
  position: absolute;
}

@media (max-width: 1100px) {
  html:is(.no-js, .is-static) .nav__links {
    display: none;
  }
}

.is-lite .marquee__track,
.is-lite .pill.is-live > i,
.is-lite .hero__scroll i,
.is-lite .portal__ring i {
  animation: none;
}