/* ============================================================
   PolyJev · Airdrop 01 落地页
   深色电影感视频 Hero + 直角块面内容区，沿用 PolyJev 的 Geist /
   mono 小标签 / 单色块面语言与深紫 + 荧光绿配色。
   页面固定深色（campaign 页不做主题切换，让视频成为唯一的明暗锚点）。
   ============================================================ */

/* ---------------- 字体 ---------------- */
@font-face {
  font-family: "Geist";
  src: url("../fonts/geist-latin.woff2") format("woff2");
  font-weight: 100 900;
  font-style: normal;
  font-display: swap;
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA,
    U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193,
    U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: "Geist";
  src: url("../fonts/geist-latin-ext.woff2") format("woff2");
  font-weight: 100 900;
  font-style: normal;
  font-display: swap;
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF,
    U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020,
    U+20A0-20AB, U+20AD-20C4, U+2113, U+2C60-2C7F, U+A720-A7FF;
}
@font-face {
  font-family: "Geist Mono";
  src: url("../fonts/geist-mono-latin.woff2") format("woff2");
  font-weight: 100 900;
  font-style: normal;
  font-display: swap;
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA,
    U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193,
    U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: "Geist Mono";
  src: url("../fonts/geist-mono-latin-ext.woff2") format("woff2");
  font-weight: 100 900;
  font-style: normal;
  font-display: swap;
  unicode-range: U+0100-02BA, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304,
    U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB,
    U+20AD-20C4, U+2113, U+2C60-2C7F, U+A720-A7FF;
}

/* ---------------- 令牌 ---------------- */
:root {
  color-scheme: dark;

  --canvas: #0e0b1a;
  --surface: #241d44;
  --surface-2: #2e2656;
  --line: #332d4f;
  --line-strong: #4a4370;

  --ink: #f2f0f3;
  --ink-muted: #a29ea9;
  --ink-subtle: #8a8698;

  --accent: #d9ff43;
  --accent-fg: #0e0b1a;
  --accent-soft: color-mix(in oklab, var(--accent) 14%, transparent);

  --danger: #ff8a80;

  --radius-card: 4px;
  --radius-pill: 999px;

  --dur: 240ms;
  --ease-step: steps(6, end);
  --ease-out: cubic-bezier(0.23, 1, 0.32, 1);

  --font-sans: "Geist", -apple-system, BlinkMacSystemFont, "Segoe UI",
    "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --font-mono: "Geist Mono", ui-monospace, SFMono-Regular, Menlo, Monaco,
    Consolas, monospace;

  --fs-body: 1rem;
  --fs-body-sm: 0.9375rem;
  --fs-label: 0.71875rem;
  --fs-label-sm: 0.6875rem;
  --fs-label-xs: 0.625rem;
  --track-label: 0.08em;
  --track-label-xs: 0.1em;
  --track-tight: -0.018em;
}

/* ---------------- 基础 ---------------- */
* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  background: var(--canvas);
}

body {
  margin: 0;
  min-height: 100vh;
  overflow-x: clip;
  background: var(--canvas);
  color: var(--ink);
  font: var(--fs-body)/1.65 var(--font-sans);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

::selection {
  background: var(--accent);
  color: var(--accent-fg);
}

a {
  color: inherit;
  text-underline-offset: 4px;
}

button,
input {
  font: inherit;
}

button {
  color: var(--ink);
  cursor: pointer;
}

button:focus-visible,
a:focus-visible,
summary:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

.skip {
  position: absolute;
  top: 10px;
  left: 10px;
  z-index: 80;
  padding: 9px 14px;
  border: 1px solid var(--ink);
  border-radius: var(--radius-pill);
  background: var(--ink);
  color: var(--canvas);
  font: 500 var(--fs-label)/1 var(--font-mono);
  text-transform: uppercase;
  text-decoration: none;
  transform: translateY(-200%);
}
.skip:focus-visible {
  transform: none;
}

/* Shape Grid 背景已移除：这一版用视频作为唯一的动态层，内容区保持纯深色。 */

main,
.shell,
.footer {
  position: relative;
  z-index: 1;
}

.shell {
  max-width: 1320px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------------- 导航 ---------------- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 60;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 18px clamp(18px, 4vw, 48px);
  border-bottom: 1px solid transparent;
  transition: background 300ms var(--ease-out), border-color 300ms var(--ease-out),
    backdrop-filter 300ms var(--ease-out);
}
.nav.is-scrolled {
  background: rgba(14, 11, 26, 0.72);
  border-bottom-color: rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(16px) saturate(1.2);
  -webkit-backdrop-filter: blur(16px) saturate(1.2);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);
  text-decoration: none;
}
.brand-mark {
  width: 26px;
  height: 26px;
  flex: none;
  color: var(--ink);
}
.brand-mark rect,
.footer-brand svg rect {
  fill: currentColor;
}
.brand-mark .bar-accent,
.footer-brand svg .bar-accent {
  fill: var(--accent);
}
.brand-word {
  font-size: 0.9375rem;
  font-weight: 550;
  line-height: 1.25;
  letter-spacing: var(--track-tight);
  white-space: nowrap;
}
.brand-pill {
  padding: 3px 6px;
  background: var(--accent);
  color: var(--accent-fg);
  font: 700 0.625rem/1 var(--font-mono);
  letter-spacing: var(--track-label-xs);
  text-transform: uppercase;
}

.nav-links {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  gap: 2px;
  padding: 4px;
  border: 1px solid rgba(255, 255, 255, 0.09);
  border-radius: var(--radius-pill);
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}
.nav-links a {
  padding: 7px 15px;
  border-radius: var(--radius-pill);
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.8125rem;
  line-height: 1;
  text-decoration: none;
  white-space: nowrap;
  transition: background 200ms var(--ease-out), color 200ms var(--ease-out);
}
.nav-links a:hover {
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
}

.nav-end {
  display: flex;
  align-items: center;
  gap: 10px;
}

.menu-btn {
  display: none;
  position: relative;
  flex: none;
  width: 38px;
  height: 38px;
  padding: 0;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-pill);
  background: rgba(255, 255, 255, 0.04);
}
.menu-btn span {
  position: absolute;
  left: 11px;
  width: 16px;
  height: 1.5px;
  background: #fff;
  transition: transform 320ms var(--ease-out);
}
.menu-btn span:first-child {
  top: 15px;
}
.menu-btn span:last-child {
  top: 21px;
}
.menu-btn[aria-expanded="true"] span:first-child {
  transform: translateY(3px) rotate(45deg);
}
.menu-btn[aria-expanded="true"] span:last-child {
  transform: translateY(-3px) rotate(-45deg);
}

.mobile-menu {
  position: fixed;
  top: 68px;
  left: 12px;
  right: 12px;
  z-index: 59;
  overflow: hidden;
  max-height: 0;
  border: 1px solid transparent;
  border-radius: 12px;
  background: rgba(10, 8, 16, 0.97);
  opacity: 0;
  transition: max-height 460ms var(--ease-out), opacity 240ms var(--ease-out),
    border-color 240ms var(--ease-out);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
}
.mobile-menu.is-open {
  max-height: 420px;
  border-color: rgba(255, 255, 255, 0.1);
  opacity: 1;
}
.mobile-menu nav {
  display: flex;
  flex-direction: column;
  padding: 8px;
}
.mobile-menu a:not(.btn) {
  padding: 13px 12px;
  border-radius: 8px;
  color: rgba(255, 255, 255, 0.78);
  font-size: 0.9375rem;
  text-decoration: none;
}
.mobile-menu a:not(.btn):hover {
  background: rgba(255, 255, 255, 0.06);
  color: #fff;
}
.mobile-menu .btn {
  margin-top: 6px;
}

/* ---------------- 按钮 ---------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 46px;
  padding: 0 20px;
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: var(--radius-pill);
  background: transparent;
  color: var(--ink);
  font: 500 0.875rem/1 var(--font-sans);
  text-decoration: none;
  white-space: nowrap;
  transition: background var(--dur) var(--ease-step), color var(--dur) var(--ease-step),
    border-color var(--dur) var(--ease-step);
}
.btn:hover {
  border-color: var(--accent);
  color: var(--accent);
}
.btn .arrow {
  font-family: var(--font-mono);
  font-size: 0.95em;
}

.btn-sm {
  min-height: 38px;
  padding: 0 15px;
  font-size: 0.8125rem;
}

.btn-white {
  border-color: var(--ink);
  background: var(--ink);
  color: var(--canvas);
}
.btn-white:hover {
  border-color: var(--accent);
  background: var(--accent);
  color: var(--accent-fg);
}

.btn-line {
  border-color: rgba(242, 240, 243, 0.28);
  color: var(--ink);
}
.btn-line:hover {
  border-color: var(--ink);
  background: var(--ink);
  color: var(--canvas);
}

.btn-dark {
  border-color: var(--accent-fg);
  background: var(--accent-fg);
  color: var(--accent);
}
.btn-dark:hover {
  border-color: var(--accent-fg);
  background: transparent;
  color: var(--accent-fg);
}

.btn-block {
  display: flex;
  width: 100%;
}

/* ---------------- Hero ---------------- */
.hero {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  min-height: 100svh;
  overflow: hidden;
  background: var(--canvas);
}

.hero-video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 46%;
  filter: saturate(1.06) contrast(1.02) brightness(1);
  transform: translateY(7%) scale(1.06);
  animation: video-in 1.4s var(--ease-out) both;
}

.hero-veil {
  position: absolute;
  inset: 0;
  background: radial-gradient(
      120% 78% at 50% 62%,
      rgba(14, 11, 26, 0) 0%,
      rgba(14, 11, 26, 0.26) 52%,
      rgba(14, 11, 26, 0.8) 100%
    ),
    linear-gradient(
      180deg,
      rgba(14, 11, 26, 0.86) 0%,
      rgba(14, 11, 26, 0.3) 30%,
      rgba(14, 11, 26, 0.16) 52%,
      rgba(14, 11, 26, 0.72) 82%,
      var(--canvas) 100%
    );
}

.hero-inner {
  position: relative;
  z-index: 2;
  width: 100%;
  max-width: 940px;
  margin: 0 auto;
  padding: clamp(132px, 19vh, 208px) 24px 40px;
  text-align: center;
}

.hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  margin: 0 0 24px;
  color: rgba(255, 255, 255, 0.7);
  font: 500 var(--fs-label-xs)/1.4 var(--font-mono);
  letter-spacing: 0.16em;
  text-transform: uppercase;
}
.hero-kicker .dot {
  width: 6px;
  height: 6px;
  flex: none;
  background: var(--accent);
  animation: pulse 2.4s steps(2, end) infinite;
}

.hero h1 {
  margin: 0 0 24px;
  color: var(--ink);
  font-size: clamp(2.9rem, 6.8vw, 5.75rem);
  font-weight: 500;
  line-height: 1;
  letter-spacing: -0.05em;
  text-wrap: balance;
}
.hero h1 em {
  font-style: normal;
  color: var(--accent);
}

.hero-sub {
  max-width: 54ch;
  margin: 0 auto 32px;
  color: rgba(255, 255, 255, 0.6);
  font: 400 var(--fs-body-sm)/1.7 var(--font-mono);
  letter-spacing: 0.005em;
}

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 10px;
}

.hero-meta {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin-top: auto;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(14, 11, 26, 0.42);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}
.hero-meta > div {
  display: flex;
  flex-direction: column;
  gap: 7px;
  padding: 17px clamp(16px, 3.4vw, 44px);
  border-right: 1px solid rgba(255, 255, 255, 0.08);
}
.hero-meta > div:last-child {
  border-right: 0;
}
.hero-meta span {
  color: rgba(255, 255, 255, 0.58);
  font: 500 var(--fs-label-xs)/1.3 var(--font-mono);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}
.hero-meta strong {
  color: var(--ink);
  font-size: 1.125rem;
  font-weight: 500;
  line-height: 1.2;
  letter-spacing: var(--track-tight);
  font-variant-numeric: tabular-nums;
}

/* ---------------- 分区通用 ---------------- */
.section {
  margin-top: clamp(76px, 10vw, 120px);
  scroll-margin-top: 88px;
}

.section-head {
  display: grid;
  grid-template-columns: 210px minmax(0, 1fr);
  gap: 16px 40px;
  padding-top: 22px;
  margin-bottom: 32px;
  border-top: 1px solid var(--line);
}

.section-label {
  margin: 0;
  color: var(--accent);
  font: 500 var(--fs-label-sm)/1.5 var(--font-mono);
  letter-spacing: var(--track-label-xs);
  text-transform: uppercase;
}

.section-head h2 {
  margin: 0 0 10px;
  font-size: clamp(1.85rem, 3.4vw, 2.75rem);
  font-weight: 520;
  line-height: 1.03;
  letter-spacing: -0.032em;
  text-wrap: balance;
}

.section-sub {
  max-width: 62ch;
  margin: 0;
  color: var(--ink-muted);
  font-size: var(--fs-body-sm);
}

/* ---------------- 任务 ---------------- */
.tasks-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 348px;
  gap: 16px;
  align-items: stretch;
}

.task-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.step {
  display: flex;
  flex-direction: column;
  gap: 11px;
  padding: 20px 20px 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  background: var(--surface);
  transition: border-color var(--dur) var(--ease-step), background var(--dur) var(--ease-step);
}
.step:hover {
  border-color: var(--line-strong);
}
.step.is-done {
  border-color: var(--accent);
}
.step.is-verified {
  border-color: var(--accent);
  background: var(--accent-soft);
}
.step--wide {
  grid-column: 1 / -1;
}
.step--wide p {
  max-width: 72ch;
}

.step-top {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
}
.step-num {
  color: var(--ink-subtle);
  font: 500 2rem/1 var(--font-mono);
  letter-spacing: -0.04em;
  transition: color var(--dur) var(--ease-step);
}
.step.is-done .step-num,
.step.is-verified .step-num {
  color: var(--accent);
}
.step-state {
  color: var(--ink-subtle);
  font: 500 var(--fs-label-xs)/1 var(--font-mono);
  letter-spacing: var(--track-label-xs);
  text-transform: uppercase;
}
.step.is-done .step-state,
.step.is-verified .step-state {
  color: var(--accent);
}

.step h3 {
  margin: 0;
  font-size: 1.0625rem;
  font-weight: 540;
  line-height: 1.35;
  letter-spacing: -0.012em;
}
.step p {
  max-width: 44ch;
  margin: 0;
  color: var(--ink-muted);
  font-size: 0.875rem;
  line-height: 1.6;
}

.step-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 7px;
  margin-top: auto;
  padding-top: 6px;
}
.step-actions .btn {
  min-height: 36px;
  padding: 0 14px;
  font-size: 0.8125rem;
}

.inline-link {
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid color-mix(in oklab, var(--accent) 45%, transparent);
}
.inline-link:hover {
  background: var(--accent);
  color: var(--accent-fg);
  border-color: var(--accent);
}

/* ---------------- 入场票 ---------------- */
.pass {
  position: sticky;
  top: 92px;
  display: flex;
  flex-direction: column;
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  background: var(--surface);
  transition: border-color var(--dur) var(--ease-step);
}
.pass.is-complete {
  border-color: var(--accent);
}

.pass-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 14px;
  border-radius: 3px 3px 0 0;
  background: var(--accent);
  color: var(--accent-fg);
  font: 600 var(--fs-label-xs)/1 var(--font-mono);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.pass-body {
  padding: 14px;
}

.pass-steps {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  margin: 0 0 16px;
  padding: 0;
  list-style: none;
  border: 1px solid var(--line);
  background: var(--line);
}
.pass-step {
  display: flex;
  flex-direction: column;
  gap: 7px;
  padding: 10px 12px 11px;
  background: var(--surface);
  transition: background var(--dur) var(--ease-step), color var(--dur) var(--ease-step);
}
.ps-index {
  color: var(--ink-subtle);
  font: 500 var(--fs-label-xs)/1 var(--font-mono);
  letter-spacing: var(--track-label-xs);
}
.ps-name {
  font-size: 0.8125rem;
  font-weight: 520;
  line-height: 1.2;
}
.pass-step.is-done {
  background: var(--accent);
  color: var(--accent-fg);
}
.pass-step.is-done .ps-index {
  color: var(--accent-fg);
  opacity: 0.62;
}
.pass-step.is-done .ps-name::after {
  content: " \2713";
}
.pass-step:last-child:nth-child(odd) {
  grid-column: 1 / -1;
}

.pass-row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 8px;
  color: var(--ink-muted);
  font: 500 var(--fs-label-xs)/1 var(--font-mono);
  letter-spacing: var(--track-label-xs);
  text-transform: uppercase;
}
#mark-count {
  color: var(--ink);
  font-variant-numeric: tabular-nums;
}

.progress {
  height: 4px;
  margin-bottom: 16px;
  background: var(--surface-2);
  overflow: hidden;
}
.progress > span {
  display: block;
  width: 0;
  height: 100%;
  background: var(--accent);
  transition: width 420ms steps(4, end);
}

.pass-verify {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
  padding: 11px 12px;
  border: 1px solid var(--line);
  background: var(--surface-2);
  color: var(--ink-muted);
  font: 500 0.6875rem/1.5 var(--font-mono);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.pass-verify-dot {
  flex: none;
  width: 7px;
  height: 7px;
  background: var(--accent);
  animation: pulse 2.4s steps(2, end) infinite;
}

.pass-note {
  min-height: 2.8em;
  margin: 10px 0 0;
  color: var(--ink-subtle);
  font-size: 0.75rem;
  line-height: 1.45;
}

.pass.is-complete .pass-note {
  color: var(--accent);
}

.pass-stub {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin: auto 14px 0;
  padding: 10px 0 12px;
  border-top: 1px dashed var(--line);
  color: var(--ink-subtle);
  font: 500 var(--fs-label-xs)/1 var(--font-mono);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.barcode {
  display: block;
  width: 64px;
  height: 14px;
  background: repeating-linear-gradient(
    90deg,
    currentColor 0 1px,
    transparent 1px 3px,
    currentColor 3px 4px,
    transparent 4px 7px,
    currentColor 7px 9px,
    transparent 9px 11px
  );
  opacity: 0.6;
}

/* ---------------- 候补弹窗 ---------------- */
.wl {
  width: min(460px, calc(100vw - 32px));
  max-height: calc(100dvh - 32px);
  overflow: auto;
  padding: 0;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-card);
  background: var(--surface);
  color: var(--ink);
}
.wl::backdrop {
  background: rgba(14, 11, 26, 0.74);
}

.wl-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 14px;
  background: var(--accent);
  color: var(--accent-fg);
  font: 600 var(--fs-label-xs)/1 var(--font-mono);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}
.wl-close {
  min-width: 44px;
  padding: 8px 0;
  border: 0;
  background: none;
  color: inherit;
  font: inherit;
  letter-spacing: inherit;
  text-transform: inherit;
  cursor: pointer;
}
.wl-close:hover {
  text-decoration: underline;
}

.wl-body {
  padding: 22px 20px 20px;
}
.wl-title {
  margin: 0 0 18px;
  font-size: 1.375rem;
  font-weight: 560;
  letter-spacing: -0.018em;
}
.wl-eyebrow {
  margin: 0;
  color: var(--ink-subtle);
  font: 500 var(--fs-label-xs)/1 var(--font-mono);
  letter-spacing: var(--track-label-xs);
  text-transform: uppercase;
}
.wl-position {
  margin: 4px 0 16px;
  color: var(--accent);
  font: 600 clamp(2.75rem, 10vw, 3.75rem)/1 var(--font-mono);
  letter-spacing: -0.05em;
  font-variant-numeric: tabular-nums;
}
.wl-copy {
  margin: 0;
  color: var(--ink-muted);
  font-size: 0.9375rem;
  line-height: 1.6;
}
.wl-copy strong {
  color: var(--ink);
  font-weight: 560;
}
.wl-note {
  margin: 12px 0 0;
  color: var(--ink-subtle);
  font-size: 0.75rem;
  line-height: 1.5;
}
.wl-body .btn {
  margin-top: 20px;
}

/* ---------------- 项目 ---------------- */
.project-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: clamp(32px, 5vw, 64px);
  align-items: start;
}
.project-copy p {
  max-width: 54ch;
  margin: 0 0 13px;
  color: var(--ink-muted);
}

.project-facts {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  margin: 26px 0;
  border: 1px solid var(--line);
  background: var(--line);
}
.project-facts > div {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 14px 16px;
  background: var(--surface);
}
.project-facts dt {
  color: var(--ink-muted);
  font: 500 var(--fs-label-xs)/1.3 var(--font-mono);
  letter-spacing: var(--track-label-xs);
  text-transform: uppercase;
}
.project-facts dd {
  margin: 0;
  font-size: 1.25rem;
  font-weight: 520;
  line-height: 1.2;
  letter-spacing: var(--track-tight);
  font-variant-numeric: tabular-nums;
}

.project-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
}

.terminal {
  margin: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  background: #1e1936;
  overflow: hidden;
}
.term-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 10px 14px;
  border-bottom: 1px solid var(--line);
  color: var(--ink-subtle);
  font: 500 var(--fs-label-xs)/1 var(--font-mono);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.term-body {
  padding: 16px;
  color: var(--ink-muted);
  font: 400 0.75rem/1.7 var(--font-mono);
}
.term-body p {
  margin: 0 0 8px;
}
.prompt {
  color: var(--ink);
  font-size: 0.8125rem;
}
.prompt span {
  color: var(--accent);
  margin-right: 8px;
}
.tool {
  display: flex;
  align-items: baseline;
  gap: 8px;
  flex-wrap: wrap;
  color: var(--ink);
}
.tool-name {
  padding: 1px 6px;
  border: 1px solid color-mix(in oklab, var(--accent) 40%, transparent);
  border-radius: 2px;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 0.6875rem;
}
.tool-q {
  color: var(--ink-muted);
}
.ms {
  margin-left: auto;
  color: var(--ink-subtle);
  font-size: 0.625rem;
}
.term-body pre {
  margin: 4px 0 10px;
  padding: 10px 12px;
  border: 1px solid var(--line);
  background: var(--canvas);
  color: var(--ink);
  font: 400 0.6875rem/1.55 var(--font-mono);
  overflow-x: auto;
}
.out-label {
  color: var(--ink-subtle);
  font-size: 0.5625rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}
.out {
  color: var(--ink);
}
.out.accent {
  color: var(--accent);
}
.spark {
  margin-top: 10px !important;
  color: var(--ink-subtle);
  letter-spacing: 0.06em;
}
.spark span {
  margin-left: 6px;
  color: var(--ink-muted);
  letter-spacing: 0;
}
.cursor {
  color: var(--accent);
  animation: blink 1.1s steps(2, end) infinite;
}
.terminal figcaption {
  padding: 11px 14px 13px;
  border-top: 1px solid var(--line);
  color: var(--ink-subtle);
  font-size: 0.75rem;
  line-height: 1.5;
}

/* ---------------- 验证 ---------------- */
.verify-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  gap: clamp(28px, 4vw, 56px);
  align-items: start;
}

.rules-list {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
}
.rules-list li {
  display: grid;
  grid-template-columns: 48px minmax(0, 1fr);
  gap: 18px;
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
}
.rule-num {
  color: var(--ink-subtle);
  font: 500 var(--fs-label-sm)/1.6 var(--font-mono);
  letter-spacing: var(--track-label);
}
.rules-list h3 {
  margin: 0 0 3px;
  color: var(--ink);
  font: 600 var(--fs-label-sm)/1.6 var(--font-mono);
  letter-spacing: var(--track-label);
  text-transform: uppercase;
}
.rules-list p {
  max-width: 66ch;
  margin: 0;
  color: var(--ink-muted);
  font-size: 0.9375rem;
  line-height: 1.6;
}

.verify-card {
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  background: var(--surface);
}
.verify-card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 10px 14px;
  border-bottom: 1px solid var(--line);
  color: var(--ink-subtle);
  font: 500 var(--fs-label-xs)/1 var(--font-mono);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.verify-card-top span:last-child {
  color: var(--accent);
}
.verify-row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  margin: 0 14px;
  padding: 11px 0;
  border-bottom: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 0.75rem;
}
.verify-row span:first-child {
  color: var(--ink-subtle);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.verify-row span:last-child {
  color: var(--ink);
  text-align: right;
}
.verify-note {
  margin: 0;
  padding: 13px 14px 15px;
  color: var(--ink-subtle);
  font-size: 0.75rem;
  line-height: 1.55;
}

/* ---------------- FAQ ---------------- */
.faq-list {
  border-top: 1px solid var(--line);
}
.faq-list details {
  border-bottom: 1px solid var(--line);
}
.faq-list summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 17px 2px;
  color: var(--ink);
  font-size: 0.9375rem;
  font-weight: 520;
  list-style: none;
  cursor: pointer;
}
.faq-list summary::-webkit-details-marker {
  display: none;
}
.faq-list summary::after {
  content: "+";
  flex: none;
  color: var(--accent);
  font: 400 1.125rem/1 var(--font-mono);
}
.faq-list details[open] summary::after {
  content: "\2212";
}
.faq-list p {
  max-width: 72ch;
  margin: 0 0 17px;
  color: var(--ink-muted);
  font-size: 0.875rem;
  line-height: 1.65;
}

/* ---------------- 收尾 ---------------- */
.final {
  position: relative;
  margin-top: clamp(76px, 10vw, 120px);
  padding: clamp(26px, 4vw, 48px);
  border-radius: var(--radius-card);
  background: var(--accent);
  color: var(--accent-fg);
  overflow: hidden;
}
.final-top {
  position: relative;
  z-index: 1;
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px 24px;
}
.final .section-label {
  color: var(--accent-fg);
  opacity: 0.8;
}
.final-line {
  position: relative;
  z-index: 1;
  max-width: 12ch;
  margin: 22px 0 34px;
  font-size: clamp(2.75rem, 7vw, 5.5rem);
  font-weight: 540;
  line-height: 0.92;
  letter-spacing: -0.05em;
}
.final-bottom {
  position: relative;
  z-index: 1;
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
}
.final-bottom p {
  max-width: 44ch;
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.55;
  opacity: 0.82;
}
.final-mark {
  position: absolute;
  top: 50%;
  right: clamp(16px, 5vw, 64px);
  width: clamp(150px, 22vw, 280px);
  height: auto;
  transform: translateY(-50%);
  color: var(--accent-fg);
  opacity: 0.12;
  pointer-events: none;
}

/* ---------------- 页脚 ---------------- */
.footer {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 14px 24px;
  max-width: 1320px;
  margin: 0 auto;
  padding: 22px 24px 40px;
  border-top: 1px solid var(--line);
  color: var(--ink-subtle);
  font: 500 var(--fs-label-xs)/1.5 var(--font-mono);
  letter-spacing: var(--track-label-xs);
  text-transform: uppercase;
}
.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.footer-brand svg {
  width: 16px;
  height: 16px;
  color: var(--ink);
}
.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}
.footer a {
  text-decoration: none;
  border-bottom: 1px solid transparent;
}
.footer a:hover {
  color: var(--ink);
  border-color: var(--ink);
}

/* ---------------- 动效 ---------------- */
@keyframes video-in {
  from {
    opacity: 0;
    transform: translateY(7%) scale(1.1);
  }
  to {
    opacity: 1;
    transform: translateY(7%) scale(1.06);
  }
}

@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(14px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

@keyframes pulse {
  0%,
  55% {
    opacity: 1;
  }
  56%,
  100% {
    opacity: 0.3;
  }
}

@keyframes blink {
  0%,
  49% {
    opacity: 1;
  }
  50%,
  100% {
    opacity: 0;
  }
}

.nav {
  animation: rise 600ms var(--ease-out) both;
}
.hero-kicker {
  animation: rise 520ms steps(5, end) 160ms both;
}
.hero h1 {
  animation: rise 600ms steps(6, end) 220ms both;
}
.hero-sub {
  animation: rise 540ms steps(5, end) 300ms both;
}
.hero-cta {
  animation: rise 500ms steps(5, end) 370ms both;
}

/* ---------------- 响应式 ---------------- */
@media (max-width: 1080px) {
  .tasks-layout {
    grid-template-columns: minmax(0, 1fr);
  }
  .pass {
    position: relative;
    top: auto;
    max-width: 520px;
  }
  .project-grid {
    grid-template-columns: minmax(0, 1fr);
  }
  .terminal {
    max-width: 640px;
  }
}

@media (max-width: 900px) {
  .nav-links {
    display: none;
  }
  .menu-btn {
    display: block;
  }
  body.menu-open {
    overflow: hidden;
  }
  .section-head {
    grid-template-columns: minmax(0, 1fr);
    gap: 12px;
  }
  .verify-grid {
    grid-template-columns: minmax(0, 1fr);
  }
  .verify-card {
    max-width: 520px;
  }
}

@media (max-width: 720px) {
  .task-grid {
    grid-template-columns: minmax(0, 1fr);
  }
  .hero-meta {
    grid-template-columns: 1fr 1fr;
  }
  .hero-meta > div:nth-child(2n) {
    border-right: 0;
  }
  .hero-meta > div:nth-child(-n + 2) {
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  }
  .hero-inner {
    padding-top: 128px;
  }
  .hero-sub {
    font-size: 0.875rem;
  }
  .project-facts {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 560px) {
  .shell {
    padding: 0 16px;
  }
  .nav {
    padding: 14px 16px;
  }
  .brand-word {
    font-size: 0.875rem;
    letter-spacing: var(--track-tight);
  }
  .brand-pill {
    display: none;
  }
  .brand-mark {
    width: 22px;
    height: 22px;
  }
  .nav-end > .btn {
    display: none;
  }
  .hero h1 {
    font-size: clamp(2.6rem, 12vw, 3.4rem);
  }
  .hero-sub {
    font-size: 0.8125rem;
    line-height: 1.65;
  }
  .hero-cta {
    flex-direction: column;
    align-items: stretch;
  }
  .hero-cta .btn {
    width: 100%;
  }
  .hero-meta > div {
    padding: 12px 16px;
  }
  .hero-meta strong {
    font-size: 1rem;
  }
  .step {
    padding: 18px 16px 16px;
  }
  .step-actions .btn {
    flex: 1 1 auto;
    justify-content: center;
  }
  .pass {
    max-width: none;
  }
  .project-actions .btn {
    width: 100%;
  }
  .rules-list li {
    grid-template-columns: 30px minmax(0, 1fr);
    gap: 12px;
  }
  .final {
    padding: 24px 20px 26px;
  }
  .final-mark {
    display: none;
  }
  .final-line {
    margin: 18px 0 26px;
  }
  .final-bottom .btn {
    width: 100%;
  }
  .footer {
    padding: 20px 16px 34px;
  }
  .mobile-menu {
    top: 62px;
    left: 8px;
    right: 8px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-delay: 0ms !important;
    transition-duration: 0.01ms !important;
  }
}