/* ============================================================
   AAHOLICS.COM — HOME 2026
   生命画布 + 巨字 · 深墨底 · 四色信号（绿 / 纸 / 蓝 / 琥珀）
   ============================================================ */

/* ---------- 设计令牌 ---------- */
:root {
  --ink: #0a0e0c;
  --ink-2: #0e1310;
  --ink-3: #131a15;
  --paper: #edf4e8;
  --paper-70: rgba(237, 244, 232, 0.72);
  --paper-50: rgba(237, 244, 232, 0.5);
  --paper-28: rgba(237, 244, 232, 0.28);
  --line: rgba(237, 244, 232, 0.12);
  --line-strong: rgba(237, 244, 232, 0.26);
  --green: #5ee38b;
  --blue: #6fb7ff;
  --amber: #ffb454;
  --green-soft: rgba(94, 227, 139, 0.12);
  --blue-soft: rgba(111, 183, 255, 0.12);
  --amber-soft: rgba(255, 180, 84, 0.12);
  --font-han: "PingFang SC", "HarmonyOS Sans SC", "Hiragino Sans GB",
    "Source Han Sans SC", "Noto Sans CJK SC", "Microsoft YaHei",
    "WenQuanYi Micro Hei", sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, "SF Mono", Menlo, Consolas,
    "Liberation Mono", "Courier New", monospace;
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-snap: cubic-bezier(0.76, 0, 0.24, 1);
  --header-h: 76px;
}

/* ---------- 基础 ---------- */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}
/* Lenis 接管滚动时必须关掉 CSS 平滑，否则两套缓动打架，滚动一卡一卡 */
html.lenis,
html.lenis body {
  scroll-behavior: auto;
}

body {
  background: var(--ink);
  color: var(--paper);
  font-family: var(--font-han);
  font-size: 16px;
  line-height: 1.75;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

::selection {
  background: var(--green);
  color: var(--ink);
}

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

button {
  font: inherit;
  color: inherit;
  background: none;
  border: 0;
  cursor: pointer;
}

img {
  display: block;
  max-width: 100%;
}

:focus-visible {
  outline: 2px dashed var(--green);
  outline-offset: 3px;
}

::-webkit-scrollbar {
  width: 9px;
}
::-webkit-scrollbar-track {
  background: var(--ink);
}
::-webkit-scrollbar-thumb {
  background: rgba(237, 244, 232, 0.22);
  border: 2px solid var(--ink);
}

html.has-cursor,
html.has-cursor a,
html.has-cursor button {
  cursor: none;
}

.skip-link {
  position: fixed;
  top: -60px;
  left: 16px;
  z-index: 300;
  padding: 10px 18px;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: 13px;
  transition: top 0.3s;
}
.skip-link:focus {
  top: 16px;
}

/* ---------- 固定层：画布 / 颗粒 / 光标 ---------- */
#field {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

.grain {
  position: fixed;
  inset: -60px;
  z-index: 90;
  pointer-events: none;
  opacity: 0.055;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='240' height='240'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  animation: grain-shift 1.4s steps(4) infinite;
}
@keyframes grain-shift {
  0% { transform: translate(0, 0); }
  25% { transform: translate(-24px, 18px); }
  50% { transform: translate(18px, -22px); }
  75% { transform: translate(-14px, -16px); }
  100% { transform: translate(0, 0); }
}

.cur-dot,
.cur-ring {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 200;
  pointer-events: none;
  border-radius: 50%;
  opacity: 0;
}
.cur-dot {
  width: 6px;
  height: 6px;
  margin: -3px 0 0 -3px;
  background: var(--paper);
  mix-blend-mode: difference;
}
.cur-ring {
  width: 36px;
  height: 36px;
  margin: -18px 0 0 -18px;
  border: 1px solid rgba(237, 244, 232, 0.55);
  display: grid;
  place-items: center;
  transition: width 0.3s var(--ease-out), height 0.3s var(--ease-out),
    margin 0.3s var(--ease-out), border-color 0.3s, background 0.3s;
}
.cur-ring .cur-label {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  color: var(--ink);
  opacity: 0;
  transition: opacity 0.2s;
}
.cur-ring.is-on {
  width: 56px;
  height: 56px;
  margin: -28px 0 0 -28px;
  border-color: var(--green);
}
.cur-ring.is-view {
  width: 76px;
  height: 76px;
  margin: -38px 0 0 -38px;
  background: var(--paper);
  border-color: var(--paper);
}
.cur-ring.is-view .cur-label {
  opacity: 1;
}
html.has-cursor .cur-dot,
html.has-cursor .cur-ring {
  opacity: 1;
}

/* ---------- 仪表 HUD ---------- */
.hud-rail {
  position: fixed;
  right: 22px;
  top: 50%;
  transform: translateY(-50%);
  z-index: 40;
  width: 1px;
  height: 180px;
  background: var(--line);
}
.hud-rail i {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--green);
  transform: scaleY(0);
  transform-origin: top;
}
.hud-side {
  position: fixed;
  left: 20px;
  bottom: 88px;
  z-index: 40;
  writing-mode: vertical-rl;
  transform: rotate(180deg);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.34em;
  color: var(--paper-50);
}
.hud-pct {
  position: fixed;
  right: 14px;
  bottom: 84px;
  z-index: 40;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.22em;
  color: var(--paper-50);
}
.hud-sec {
  position: fixed;
  left: 20px;
  bottom: 20px;
  z-index: 40;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.26em;
  color: var(--paper-50);
}
.hud-sec b {
  color: var(--green);
  font-weight: 500;
}
@media (max-width: 900px) {
  .hud-rail, .hud-side, .hud-pct, .hud-sec { display: none; }
}

/* ---------- 顶部进度 / 返回顶部 ---------- */
.scroll-indicator {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 80;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, var(--green), var(--blue) 55%, var(--amber));
  transform: scaleX(0);
  transform-origin: left;
}
.back-to-top {
  position: fixed;
  right: 20px;
  bottom: 20px;
  z-index: 60;
  width: 46px;
  height: 46px;
  display: grid;
  place-items: center;
  border: 1px solid var(--line-strong);
  background: rgba(14, 19, 16, 0.7);
  backdrop-filter: blur(8px);
  color: var(--paper);
  opacity: 0;
  transform: translateY(16px);
  pointer-events: none;
  transition: opacity 0.4s, transform 0.4s var(--ease-out),
    border-color 0.3s, color 0.3s;
}
.back-to-top.show {
  opacity: 1;
  transform: none;
  pointer-events: auto;
}
.back-to-top:hover {
  border-color: var(--green);
  color: var(--green);
}
.back-to-top svg {
  width: 18px;
  height: 18px;
}

/* ---------- 页头 ---------- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 50;
  height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 0 clamp(18px, 4vw, 44px);
  transition: transform 0.5s var(--ease-out), background 0.4s, border-color 0.4s;
  border-bottom: 1px solid transparent;
}
.site-header.scrolled {
  background: rgba(10, 14, 12, 0.78);
  backdrop-filter: blur(14px);
  border-color: var(--line);
}
.site-header.hide {
  transform: translateY(-110%);
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}
.brand-mark {
  position: relative;
  width: 36px;
  height: 36px;
}
.brand-mark img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 50%;
  border: 1px solid var(--line-strong);
}
.brand-mark::before {
  content: "";
  position: absolute;
  z-index: 1;
  right: -1px;
  bottom: -1px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--green);
  border: 2px solid var(--ink);
}
.brand-mark::after {
  content: "";
  position: absolute;
  right: -1px;
  bottom: -1px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: rgba(94, 227, 139, 0.55);
  animation: live-ping 2.4s infinite;
}
@keyframes live-ping {
  0% { transform: scale(1); opacity: 0.55; }
  70% { transform: scale(2.8); opacity: 0; }
  100% { transform: scale(2.8); opacity: 0; }
}
.brand-text {
  font-weight: 800;
  font-size: 1.05rem;
  letter-spacing: 0.08em;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: clamp(16px, 2.4vw, 30px);
}
.nav-links a {
  position: relative;
  font-size: 0.84rem;
  letter-spacing: 0.18em;
  color: var(--paper-70);
  padding: 6px 0;
  transition: color 0.3s;
}
.nav-links a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 1px;
  background: var(--green);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s var(--ease-out);
}
.nav-links a:hover,
.nav-links a.is-active {
  color: var(--paper);
}
.nav-links a:hover::after,
.nav-links a.is-active::after {
  transform: scaleX(1);
}
.nav-links a.nav-page {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.12em;
  color: var(--paper-50);
}

.menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  place-items: center;
  border: 1px solid var(--line-strong);
  color: var(--paper);
}
.menu-toggle svg {
  width: 20px;
  height: 20px;
}
.menu-toggle .ico-close { display: none; }
body.menu-open .menu-toggle .ico-open { display: none; }
body.menu-open .menu-toggle .ico-close { display: block; }

@media (max-width: 1060px) {
  .nav-links { display: none; }
  .menu-toggle { display: grid; }
}

/* ---------- 全屏菜单 ---------- */
.menu-veil {
  position: fixed;
  inset: 0;
  z-index: 45;
  background: rgba(10, 14, 12, 0.94);
  backdrop-filter: blur(18px);
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 0 clamp(24px, 8vw, 90px);
  clip-path: inset(0 0 100% 0);
  visibility: hidden;
  transition: clip-path 0.65s var(--ease-snap), visibility 0s 0.65s;
}
body.menu-open .menu-veil {
  clip-path: inset(0 0 0 0);
  visibility: visible;
  transition: clip-path 0.65s var(--ease-snap);
}
.menu-veil nav {
  display: flex;
  flex-direction: column;
}
.menu-veil a {
  display: flex;
  align-items: baseline;
  gap: 18px;
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
  font-size: clamp(1.7rem, 6vw, 2.6rem);
  font-weight: 800;
  color: var(--paper-70);
  opacity: 0;
  transform: translateY(26px);
  transition: opacity 0.5s var(--ease-out), transform 0.5s var(--ease-out),
    color 0.3s;
  transition-delay: calc(0.08s + var(--i) * 0.05s);
}
.menu-veil a em {
  font-family: var(--font-mono);
  font-style: normal;
  font-size: 0.78rem;
  color: var(--green);
}
.menu-veil a:hover {
  color: var(--paper);
}
body.menu-open .menu-veil a {
  opacity: 1;
  transform: none;
}
.menu-foot {
  margin-top: 34px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  color: var(--paper-50);
  opacity: 0;
  transition: opacity 0.5s 0.5s;
}
body.menu-open .menu-foot {
  opacity: 1;
}

/* ---------- 预加载 ---------- */
.preloader {
  position: fixed;
  inset: 0;
  z-index: 100;
  background: var(--ink);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 22px;
}
.pl-corner {
  position: absolute;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.3em;
  color: var(--paper-50);
}
.pl-corner.tl { top: 22px; left: 24px; }
.pl-corner.br { bottom: 22px; right: 24px; }
.pl-pct {
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: clamp(4.4rem, 17vw, 10rem);
  line-height: 1;
  color: transparent;
  -webkit-text-stroke: 1px rgba(237, 244, 232, 0.75);
}
.pl-pct i {
  font-style: normal;
  color: var(--paper);
  -webkit-text-stroke: 0;
}
.pl-bar {
  width: min(280px, 60vw);
  height: 1px;
  background: var(--line);
  overflow: hidden;
}
.pl-bar i {
  display: block;
  width: 100%;
  height: 100%;
  background: var(--green);
  transform: scaleX(0);
  transform-origin: left;
}
.pl-label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.34em;
  color: var(--paper-50);
}

/* ---------- 主体容器 ---------- */
main {
  position: relative;
  z-index: 10;
}
.hero-grid > *,
.about-grid > *,
.contact-grid > *,
.wrow,
.crow,
.step {
  min-width: 0;
}
.desk-cmd-line { min-width: 0; }
.wrap {
  width: min(1240px, 100% - clamp(36px, 8vw, 96px));
  margin-inline: auto;
}

/* 揭示动效（JS 存在时初始隐藏） */
html.js .rv {
  opacity: 0;
  transform: translateY(46px);
  transition: opacity 0.9s var(--ease-out), transform 0.9s var(--ease-out);
  transition-delay: var(--d, 0s);
}
html.js .rv.in {
  opacity: 1;
  transform: none;
}

/* ---------- HERO ---------- */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: flex-end;
  padding: calc(var(--header-h) + 6vh) 0 9vh;
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(90% 70% at 78% 12%, rgba(94, 227, 139, 0.07), transparent 60%),
    radial-gradient(120% 90% at 50% 110%, rgba(10, 14, 12, 0.82), transparent 55%);
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.16fr 0.84fr;
  gap: clamp(32px, 5vw, 72px);
  align-items: end;
  width: 100%;
}

.eyebrow {
  display: flex;
  align-items: center;
  gap: 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.26em;
  color: var(--paper-70);
  margin-bottom: clamp(20px, 3.4vh, 34px);
}
.eyebrow .pulse {
  position: relative;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--green);
  flex-shrink: 0;
}
.eyebrow .pulse::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background: rgba(94, 227, 139, 0.55);
  animation: live-ping 2.2s infinite;
}
.eyebrow::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--line);
}

.hero-title {
  font-weight: 900;
  line-height: 1.14;
  letter-spacing: 0.01em;
}
.hline {
  display: block;
  overflow: hidden;
  padding-bottom: 0.08em;
}
.hline .ch {
  display: inline-block;
  will-change: transform;
}
.hline-1 { font-size: clamp(2.3rem, 5.6vw, 4.4rem); }
.hline-2 {
  font-size: clamp(1.05rem, 2.3vw, 1.7rem);
  font-weight: 500;
  color: var(--paper-50);
  margin: 0.35em 0 0.35em clamp(0px, 6vw, 88px);
  letter-spacing: 0.3em;
}
.hline-3 { font-size: clamp(2.9rem, 7.6vw, 6.4rem); }
.hline-3 .hl {
  color: var(--amber);
  border-bottom: 0.09em solid var(--amber);
  padding-bottom: 0.02em;
  display: inline-block;
}

.hero-summary {
  margin-top: clamp(26px, 4.4vh, 44px);
  border-left: 2px solid var(--green);
  padding-left: clamp(14px, 1.6vw, 22px);
  max-width: 34em;
}
.hero-summary .sum-line {
  display: block;
  color: var(--paper-50);
  font-size: 0.95rem;
  line-height: 1.95;
  margin: 6px 0;
}
.hero-summary .sum-line.is-key {
  color: var(--paper);
  font-weight: 600;
  font-size: 1.05rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: clamp(24px, 3.8vh, 38px);
}

/* 按钮 */
.btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 24px;
  border: 1px solid var(--line-strong);
  font-size: 0.94rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--paper);
  overflow: hidden;
  transition: color 0.35s, border-color 0.35s;
}
.btn::before {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--paper);
  transform: scaleY(0);
  transform-origin: bottom;
  transition: transform 0.45s var(--ease-snap);
}
.btn > * { position: relative; z-index: 1; }
.btn svg {
  width: 17px;
  height: 17px;
  transition: transform 0.4s var(--ease-out);
}
.btn:hover { color: var(--ink); border-color: var(--paper); }
.btn:hover::before { transform: scaleY(1); }
.btn:hover svg { transform: translate(3px, -3px); }
.btn.primary {
  background: var(--paper);
  border-color: var(--paper);
  color: var(--ink);
}
.btn.primary::before { background: var(--green); }
.btn.primary:hover { color: var(--ink); }
.btn.plain {
  border-color: transparent;
  padding-inline: 6px;
  color: var(--paper-70);
}
.btn.plain::before { display: none; }
.btn.plain:hover { color: var(--green); }
.btn.plain svg { animation: bob 2.2s ease-in-out infinite; }
@keyframes bob {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(5px); }
}

/* 诊断仪表卡 */
.desk-card {
  position: relative;
  width: 100%;
  border: 1px solid var(--line);
  background: linear-gradient(165deg, rgba(19, 26, 21, 0.88), rgba(11, 15, 12, 0.92));
  backdrop-filter: blur(6px);
  padding: 22px;
}
.desk-card::before,
.desk-card::after {
  content: "";
  position: absolute;
  width: 16px;
  height: 16px;
  pointer-events: none;
}
.desk-card::before {
  top: -1px;
  left: -1px;
  border-top: 2px solid var(--green);
  border-left: 2px solid var(--green);
}
.desk-card::after {
  bottom: -1px;
  right: -1px;
  border-bottom: 2px solid var(--amber);
  border-right: 2px solid var(--amber);
}
.desk-scan {
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
}
.desk-scan::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 100%;
  background: linear-gradient(90deg, transparent, var(--green), transparent)
    0 0 / 100% 1px no-repeat;
  opacity: 0;
  will-change: transform;
  animation: desk-scan 5s var(--ease-out) infinite;
}
@keyframes desk-scan {
  0% { transform: translateY(0); opacity: 0; }
  12% { opacity: 0.6; }
  88% { opacity: 0.6; }
  100% { transform: translateY(100%); opacity: 0; }
}
.desk-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.24em;
  color: var(--paper-50);
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line);
}
.desk-head strong {
  color: var(--green);
  font-weight: 500;
}
.desk-console {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  padding: 16px 0;
  font-size: 0.92rem;
  color: var(--paper-70);
  line-height: 1.8;
}
.desk-cursor {
  flex-shrink: 0;
  width: 8px;
  height: 1.05em;
  margin-top: 0.3em;
  background: var(--green);
  animation: blink 1.1s steps(1) infinite;
}
@keyframes blink { 50% { opacity: 0; } }

.desk-cmd {
  border: 1px solid var(--line);
  background: rgba(10, 14, 12, 0.72);
  padding: 14px 16px;
}
.desk-cmd-head {
  display: flex;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.22em;
  color: var(--paper-50);
  margin-bottom: 10px;
}
.desk-cmd-head strong { color: var(--amber); font-weight: 500; }
.desk-cmd-line {
  display: flex;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--green);
  overflow-x: auto;
  white-space: nowrap;
  scrollbar-width: none;
}
.desk-cmd-line::-webkit-scrollbar { display: none; }
.desk-cmd-line b { color: var(--paper-50); font-weight: 400; }
.desk-cmd-bar {
  margin-top: 12px;
  height: 3px;
  background: var(--line);
  overflow: hidden;
}
.desk-cmd-bar i {
  display: block;
  height: 100%;
  width: 40%;
  background: linear-gradient(90deg, var(--green), var(--blue));
  animation: cmd-sweep 2.4s var(--ease-out) infinite;
}
@keyframes cmd-sweep {
  0% { transform: translateX(-110%); }
  100% { transform: translateX(290%); }
}
.desk-cmd p {
  margin-top: 10px;
  font-size: 0.8rem;
  color: var(--paper-50);
  line-height: 1.7;
}
.meta-list { margin-top: 16px; }
.meta-item {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 11px 0;
  border-top: 1px solid var(--line);
  font-size: 0.82rem;
}
.meta-item:first-child { border-top: 0; }
.meta-label {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.18em;
  color: var(--paper-50);
  padding-top: 3px;
  flex-shrink: 0;
}
.meta-value {
  color: var(--paper-70);
  text-align: right;
}

.hero-scrollcue {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  bottom: 24px;
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.34em;
  color: var(--paper-50);
}
.hero-scrollcue svg {
  width: 15px;
  height: 15px;
  animation: bob 2s ease-in-out infinite;
}
@media (max-width: 900px) {
  .hero-scrollcue { display: none; }
}

/* ---------- 跑马灯 ---------- */
.marquee {
  position: relative;
  z-index: 10;
  border-block: 1px solid var(--line);
  background: rgba(10, 14, 12, 0.55);
  overflow: hidden;
  padding: 16px 0;
}
.marquee-track {
  display: flex;
  width: max-content;
  gap: 0;
  animation: marquee 26s linear infinite;
}
.marquee span {
  display: inline-flex;
  align-items: center;
  gap: 26px;
  padding-right: 26px;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  letter-spacing: 0.3em;
  color: var(--paper-50);
  white-space: nowrap;
}
.marquee svg {
  width: 14px;
  height: 14px;
  color: var(--green);
}
.marquee span:nth-child(3n + 2) svg { color: var(--blue); }
.marquee span:nth-child(3n) svg { color: var(--amber); }
@keyframes marquee {
  to { transform: translateX(-50%); }
}

/* ---------- 区块骨架 ---------- */
.section-block {
  position: relative;
  padding: clamp(80px, 13vh, 150px) 0;
}
.sec-ghost {
  position: absolute;
  right: -2vw;
  top: clamp(20px, 4vh, 60px);
  z-index: 0;
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: clamp(9rem, 24vw, 21rem);
  line-height: 1;
  color: transparent;
  -webkit-text-stroke: 1px rgba(237, 244, 232, 0.075);
  user-select: none;
  pointer-events: none;
  will-change: transform;
}
.sec-head {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: baseline;
  gap: clamp(16px, 3vw, 34px);
  padding-bottom: 22px;
  border-bottom: 1px solid var(--line-strong);
  margin-bottom: clamp(40px, 7vh, 72px);
}
.sec-kicker {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.3em;
  flex-shrink: 0;
}
.sec-kicker::before {
  content: "";
  display: inline-block;
  width: 8px;
  height: 8px;
  margin-right: 12px;
  background: currentColor;
}
#about .sec-kicker { color: var(--green); }
#experience .sec-kicker { color: var(--blue); }
#work .sec-kicker { color: var(--amber); }
#contact .sec-kicker { color: var(--paper); }
.sec-head h2 {
  font-size: clamp(2rem, 4.6vw, 3.6rem);
  font-weight: 900;
  letter-spacing: 0.04em;
}
.sec-head .sec-no {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.22em;
  color: var(--paper-50);
}

/* ---------- 关于 ---------- */
.about-grid {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: clamp(36px, 5vw, 80px);
}
.about-story { position: relative; }
.about-story-title {
  font-size: clamp(1.5rem, 2.8vw, 2.15rem);
  font-weight: 800;
  line-height: 1.5;
  margin-bottom: clamp(24px, 4vh, 40px);
}
.about-story-title::after {
  content: "";
  display: block;
  width: 52px;
  height: 3px;
  margin-top: 18px;
  background: var(--green);
}
.story-block {
  margin: 20px 0;
  font-size: 0.98rem;
  color: var(--paper-50);
  line-height: 2.05;
}
.story-block span { display: block; }
.story-quote {
  margin-top: clamp(28px, 4.5vh, 44px);
  padding: 4px 0 4px 22px;
  border-left: 3px solid var(--amber);
  font-size: clamp(1.2rem, 2.2vw, 1.55rem);
  font-weight: 800;
  line-height: 1.7;
}
.story-quote span { display: block; }
.story-quote::before { content: "「"; color: var(--amber); }
.story-quote::after { content: "」"; color: var(--amber); }

.steps {
  position: relative;
  padding-left: 26px;
}
.steps::before {
  content: "";
  position: absolute;
  left: 0;
  top: 6px;
  bottom: 6px;
  width: 1px;
  background: var(--line);
}
.steps-rail {
  position: absolute;
  left: 0;
  top: 6px;
  width: 1px;
  height: calc(100% - 12px);
  background: var(--green);
  transform: scaleY(0);
  transform-origin: top;
  transition: transform 0.2s linear;
}
.step {
  position: relative;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: clamp(16px, 2.4vw, 30px);
  align-items: baseline;
  padding: clamp(22px, 3.4vh, 34px) 0;
  border-bottom: 1px solid var(--line);
  transition: transform 0.45s var(--ease-out);
}
.step::before {
  content: "";
  position: absolute;
  left: -29.5px;
  top: 50%;
  width: 7px;
  height: 7px;
  background: var(--ink);
  border: 1px solid var(--green);
  transform: translateY(-50%) rotate(45deg);
  transition: background 0.3s;
}
.step:hover { transform: translateX(10px); }
.step:hover::before { background: var(--green); }
.step-no {
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: clamp(2.2rem, 4vw, 3.4rem);
  line-height: 1;
  color: var(--paper-28);
  transition: color 0.35s;
}
.step:hover .step-no { color: var(--green); }
.step-label {
  font-size: clamp(1.05rem, 1.8vw, 1.3rem);
  font-weight: 700;
  letter-spacing: 0.04em;
  align-self: center;
}

/* ---------- 经历：层叠卡 ---------- */
.stack {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  gap: 26px;
}
.stack-card {
  position: sticky;
  top: calc(var(--header-h) + 22px + var(--i) * 18px);
  border: 1px solid var(--line);
  background: linear-gradient(170deg, rgba(19, 26, 21, 0.94), rgba(11, 15, 12, 0.97));
  padding: clamp(24px, 3.6vw, 44px);
  transition: transform 0.6s var(--ease-out), filter 0.6s;
}
.stack-card.covered {
  transform: scale(0.965);
  filter: brightness(0.55);
}
.stack-top {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 18px;
}
.timeline-date {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.24em;
  color: var(--blue);
}
.stack-idx {
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: clamp(2.4rem, 5vw, 4rem);
  line-height: 1;
  color: transparent;
  -webkit-text-stroke: 1px rgba(237, 244, 232, 0.24);
}
.timeline-body h3 {
  font-size: clamp(1.45rem, 3vw, 2.2rem);
  font-weight: 900;
  letter-spacing: 0.03em;
  margin-bottom: 10px;
}
.timeline-body .role {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.24em;
  color: var(--green);
  margin-bottom: 14px;
}
.timeline-body p {
  color: var(--paper-50);
  font-size: 0.96rem;
  line-height: 2;
  max-width: 46em;
}

/* ---------- 作品 ---------- */
.work-intro {
  position: relative;
  z-index: 2;
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 14px 34px;
  margin-bottom: clamp(30px, 5vh, 52px);
}
.work-intro .mini-kicker {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.28em;
  color: var(--amber);
}
.work-intro h3 {
  font-size: clamp(1.3rem, 2.4vw, 1.8rem);
  font-weight: 800;
}
.work-intro p {
  width: 100%;
  color: var(--paper-50);
  font-size: 0.92rem;
}

.wrows { position: relative; z-index: 2; border-bottom: 1px solid var(--line); }
.wrow {
  position: relative;
  display: grid;
  grid-template-columns: clamp(52px, 7vw, 92px) 1fr auto;
  gap: clamp(14px, 2.4vw, 30px);
  align-items: center;
  padding: clamp(26px, 4vh, 40px) clamp(10px, 1.6vw, 22px);
  border-top: 1px solid var(--line);
  overflow: hidden;
  isolation: isolate;
}
.wrow::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: linear-gradient(90deg, var(--ink-3), rgba(19, 26, 21, 0.4));
  transform: scaleY(0);
  transform-origin: bottom;
  transition: transform 0.5s var(--ease-snap);
}
.wrow:hover::before { transform: scaleY(1); }
.wrow-no {
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: clamp(1.5rem, 3vw, 2.2rem);
  color: var(--paper-28);
  transition: color 0.35s;
}
.wrow:hover .wrow-no { color: var(--amber); }
.wrow-main {
  display: block;
  min-width: 0;
}
.wrow-desc { display: block; }
.wrow-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 10px;
}
.wtag {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.2em;
  padding: 4px 10px;
  border: 1px solid var(--line-strong);
  color: var(--paper-50);
}
.wtag.status { color: var(--green); border-color: rgba(94, 227, 139, 0.4); }
.wrow h3 {
  font-size: clamp(1.9rem, 4.8vw, 3.8rem);
  font-weight: 900;
  line-height: 1.12;
  letter-spacing: 0.02em;
  transition: transform 0.5s var(--ease-out);
}
.wrow:hover h3 { transform: translateX(16px); }
.wrow-desc {
  margin-top: 10px;
  max-width: 42em;
  color: var(--paper-50);
  font-size: 0.93rem;
  line-height: 1.9;
}
.wrow-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 0.88rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--paper-70);
  white-space: nowrap;
  transition: color 0.3s;
}
.wrow-link .arr {
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  border: 1px solid var(--line-strong);
  border-radius: 50%;
  transition: background 0.35s, border-color 0.35s, transform 0.45s var(--ease-out);
}
.wrow-link svg { width: 17px; height: 17px; }
.wrow-link:hover { color: var(--ink); }
.wrow-link:hover .arr {
  background: var(--green);
  border-color: var(--green);
  transform: rotate(45deg);
}

/* 悬浮预览 */
.wpreview {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 30;
  width: min(400px, 30vw);
  aspect-ratio: 4 / 3;
  border: 1px solid var(--line-strong);
  background: var(--ink-3);
  overflow: hidden;
  pointer-events: none;
  opacity: 0;
  transform: translate(-50%, -50%) scale(0.86) rotate(-3deg);
  transition: opacity 0.35s var(--ease-out);
  will-change: transform;
}
.wpreview.on { opacity: 1; }
.wpreview img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.wpreview .wtype {
  display: none;
  width: 100%;
  height: 100%;
  flex-direction: column;
  justify-content: space-between;
  padding: 20px;
  background:
    repeating-linear-gradient(0deg, transparent, transparent 26px, rgba(237, 244, 232, 0.05) 26px, rgba(237, 244, 232, 0.05) 27px),
    linear-gradient(160deg, var(--ink-3), var(--ink));
}
.wpreview.is-type .wtype { display: flex; }
.wpreview.is-type img { display: none; }
.wtype b {
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: clamp(3rem, 6vw, 4.6rem);
  line-height: 1;
  color: transparent;
  -webkit-text-stroke: 1px rgba(237, 244, 232, 0.5);
}
.wtype span {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.26em;
  color: var(--paper-70);
}

/* 站内产品入口 */
.more-strip {
  position: relative;
  z-index: 2;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin-top: clamp(34px, 5.5vh, 56px);
}
.more-strip .more-label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.26em;
  color: var(--paper-50);
  margin-right: 8px;
}
.more-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 16px;
  border: 1px solid var(--line-strong);
  border-radius: 2px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--paper-70);
  transition: transform 0.35s var(--ease-out), background 0.3s, color 0.3s,
    border-color 0.3s;
}
.more-tag svg { width: 14px; height: 14px; }
.more-tag:hover {
  transform: translateY(-3px);
  background: var(--green-soft);
  border-color: var(--green);
  color: var(--paper);
}

/* ---------- 联系 ---------- */
.contact-section {
  position: relative;
  padding: clamp(80px, 13vh, 150px) 0 clamp(60px, 9vh, 110px);
}
.contact-section::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  background: radial-gradient(80% 70% at 20% 30%, rgba(111, 183, 255, 0.06), transparent 60%);
}
.contact-grid {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: clamp(36px, 5vw, 80px);
  align-items: start;
}
.contact-copy h2 {
  font-size: clamp(2.2rem, 5vw, 3.8rem);
  font-weight: 900;
  letter-spacing: 0.04em;
  line-height: 1.3;
  margin: 18px 0 22px;
}
.contact-copy p {
  color: var(--paper-50);
  font-size: 0.98rem;
  line-height: 2.05;
  max-width: 26em;
}
.contact-cta { margin-top: 30px; }

.crows { border-bottom: 1px solid var(--line); }
.crow {
  display: grid;
  grid-template-columns: 50px 92px 1fr auto;
  gap: 16px;
  align-items: center;
  padding: 20px 8px;
  border-top: 1px solid var(--line);
  transition: background 0.35s, padding 0.35s var(--ease-out);
}
.crow:hover {
  background: rgba(19, 26, 21, 0.75);
  padding-inline: 18px;
}
.crow-ico {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border: 1px solid var(--line-strong);
  border-radius: 2px;
  color: var(--paper-70);
  transition: background 0.3s, color 0.3s, border-color 0.3s;
}
.crow-ico svg { width: 18px; height: 18px; }
.crow:hover .crow-ico {
  background: var(--green);
  border-color: var(--green);
  color: var(--ink);
}
.crow:nth-child(2):hover .crow-ico { background: var(--blue); border-color: var(--blue); }
.crow:nth-child(3):hover .crow-ico { background: var(--paper); border-color: var(--paper); }
.crow:nth-child(4):hover .crow-ico { background: var(--amber); border-color: var(--amber); }
.crow:nth-child(5):hover .crow-ico { background: var(--paper); border-color: var(--paper); }
.crow-label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.24em;
  color: var(--paper-50);
}
.crow-value {
  font-family: var(--font-mono);
  font-size: clamp(0.9rem, 1.6vw, 1.12rem);
  letter-spacing: 0.04em;
  color: var(--paper);
  display: flex;
  flex-direction: column;
  gap: 4px;
  word-break: break-all;
}
a.crow-value:hover { color: var(--green); }
.copy-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 14px;
  border: 1px solid var(--line-strong);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--paper-70);
  transition: border-color 0.3s, color 0.3s;
}
.copy-btn svg { width: 14px; height: 14px; }
.copy-btn:hover { border-color: var(--green); color: var(--green); }
.copy-btn .ico-done { display: none; }
.copy-btn.copied { border-color: var(--green); color: var(--green); }
.copy-btn.copied .ico-copy { display: none; }
.copy-btn.copied .ico-done { display: block; }

/* ---------- 页脚 ---------- */
.site-footer {
  position: relative;
  z-index: 10;
  border-top: 1px solid var(--line);
  background: rgba(10, 14, 12, 0.7);
}
.site-footer .wrap {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 10px;
  padding-block: 34px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--paper-50);
}

/* ---------- 响应式 ---------- */
@media (max-width: 1060px) {
  .hero-grid { grid-template-columns: 1fr; align-items: start; }
  .desk-card { max-width: 560px; }
  .about-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  :root { --header-h: 62px; }
  .hero { padding-top: calc(var(--header-h) + 4vh); }
  .hline-2 { letter-spacing: 0.14em; }
  .sec-ghost { right: -6vw; opacity: 0.7; }
  .stack-card { position: relative; top: 0; }
  .wrow {
    grid-template-columns: 44px 1fr;
    align-items: start;
  }
  .wrow-link {
    grid-column: 2;
    margin-top: 16px;
    justify-self: start;
  }
  .crow {
    grid-template-columns: 44px 1fr auto;
  }
  .crow-label { display: none; }
  .wpreview { display: none; }
}

/* ---------- 减少动态效果 ---------- */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  html { scroll-behavior: auto; }
  html.js .rv { opacity: 1; transform: none; }
  .marquee-track { animation: none; transform: none; }
  .grain { animation: none; }
  .desk-scan { display: none; }
}