/* JieGe editorial interface — dark research-tool aesthetic */
:root {
  --bg: #05080d;
  --surface: #0a1018;
  --surface2: #101824;
  --line: #1e2a3a;
  --ink: #f2f6fd;
  --muted: #8795aa;
  --accent: #4b8dff;
  --accent2: #79aaff;
  --warn: #d8ae68;
  --danger: #e47683;
  --shadow: 0 34px 100px rgba(0, 12, 31, .52);
  --radius: 12px;
  --wrap: min(1280px, calc(100% - 48px));
}

html[data-theme="light"] {
  --bg: #eef3f8;
  --surface: #f9fbfd;
  --surface2: #e7edf4;
  --line: #cbd6e3;
  --ink: #111a26;
  --muted: #5f6f84;
  --accent: #286ed8;
  --accent2: #4b8dff;
  --warn: #89601d;
  --danger: #ad3e50;
  --shadow: 0 30px 80px rgba(46, 69, 94, .16);
}

html {
  background: var(--bg);
  scroll-padding-top: 92px;
}

body {
  min-height: 100%;
  font-family: "SF Pro Display", "HarmonyOS Sans SC", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  background:
    radial-gradient(circle at 79% 7%, rgba(31, 104, 132, .17), transparent 33rem),
    radial-gradient(circle at 17% 41%, rgba(43, 83, 154, .10), transparent 38rem),
    var(--bg);
  color: var(--ink);
  letter-spacing: -.012em;
}

body::before {
  z-index: 80;
  opacity: .025;
  mix-blend-mode: screen;
}

body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  opacity: .19;
  background-image:
    linear-gradient(rgba(91, 123, 164, .045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(91, 123, 164, .045) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: linear-gradient(to bottom, #000, transparent 76%);
}

.skip-link {
  position: fixed;
  top: 8px;
  left: 8px;
  z-index: 120;
  padding: 9px 12px;
  border-radius: 7px;
  background: var(--accent);
  color: #06101f;
  font-weight: 800;
  transform: translateY(-150%);
  transition: transform .2s ease;
}

.skip-link:focus { transform: none; }

.wrap { width: var(--wrap); }

.nav {
  position: fixed;
  top: 16px;
  left: 50%;
  width: min(1328px, calc(100% - 32px));
  transform: translateX(-50%);
  border: 1px solid rgba(117, 144, 181, .13);
  border-radius: 17px;
  background: rgba(6, 10, 16, .76);
  box-shadow: 0 16px 45px rgba(0, 0, 0, .23), inset 0 1px 0 rgba(255,255,255,.025);
  backdrop-filter: blur(24px) saturate(135%);
}

html[data-theme="light"] .nav { background: rgba(246, 249, 252, .82); }

.nav .wrap {
  width: 100%;
  padding-inline: 20px;
}

.nav-inner { height: 60px; }

.brand {
  position: relative;
  gap: 10px;
  font-size: 18px;
  font-weight: 760;
  letter-spacing: -.035em;
}

.brand::after {
  content: "SCREEN INTELLIGENCE";
  margin-left: 4px;
  color: var(--muted);
  font: 650 9px/1 ui-monospace, "Cascadia Mono", monospace;
  letter-spacing: .13em;
}

.brand-mark {
  width: 31px;
  height: 31px;
  border: 1px solid rgba(91, 145, 255, .62);
  border-radius: 7px;
  background: rgba(75, 141, 255, .1);
  box-shadow: inset 0 0 18px rgba(75, 141, 255, .12), 0 0 25px rgba(75, 141, 255, .08);
  color: var(--accent2);
  font: 800 14px/1 ui-monospace, "Cascadia Mono", monospace;
  transform: none;
}

.nav-links { gap: 25px; }
.nav-links a {
  position: relative;
  color: #8d99aa;
  font-size: 13px;
  font-weight: 560;
}
.nav-links a::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: -8px;
  left: 0;
  height: 1px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform .22s ease;
}
.nav-links a:hover::after,
.nav-links a[aria-current="true"]::after {
  transform: scaleX(1);
  transform-origin: left;
}
.nav-links a[aria-current="true"] { color: var(--ink); }

.icon-button,
.menu-button {
  min-height: 34px;
  padding: 5px 10px;
  border-radius: 8px;
  background: rgba(255,255,255,.025);
  font-size: 12px;
  font-weight: 650;
}

.hero {
  min-height: 100dvh;
  padding: 126px 0 78px;
  align-items: center;
  overflow: clip;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -3;
  opacity: .5;
  background-image:
    radial-gradient(circle, rgba(111, 159, 232, .42) 0 1px, transparent 1.5px),
    radial-gradient(circle, rgba(111, 159, 232, .2) 0 1px, transparent 1.4px);
  background-position: 0 0, 27px 41px;
  background-size: 97px 97px, 131px 131px;
  mask-image: radial-gradient(ellipse 72% 68% at 76% 35%, #000, transparent 85%);
}

.hero::after {
  content: "";
  position: absolute;
  top: 96px;
  right: max(24px, calc((100vw - 1280px) / 2));
  bottom: 38px;
  width: 1px;
  background: linear-gradient(transparent, rgba(81, 132, 207, .32) 20%, rgba(81, 132, 207, .1) 82%, transparent);
}

.aurora::before,
.aurora::after {
  width: 760px;
  height: 760px;
  filter: blur(135px);
  opacity: .12;
}
.aurora::before { background: #16789c; right: -210px; top: -290px; }
.aurora::after { background: #2458a8; left: -360px; bottom: -470px; }

.hero-grid {
  grid-template-columns: minmax(500px, .9fr) minmax(500px, 1.1fr);
  gap: clamp(36px, 4vw, 64px);
  padding: 24px 0 0;
}

.hero-copy { align-self: center; }

.kicker {
  gap: 11px;
  color: var(--accent2);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .18em;
}
.kicker::before {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  box-shadow: 0 0 14px currentColor;
}

h1 {
  width: max-content;
  max-width: 100%;
  margin: 27px 0 25px;
  font-size: clamp(58px, 5.7vw, 92px);
  line-height: .92;
  letter-spacing: -.072em;
  text-wrap: nowrap;
}

h1 em {
  color: var(--accent);
  text-shadow: 0 0 34px rgba(75, 141, 255, .24);
}

.hero-title-line {
  display: block;
  white-space: nowrap;
}

.hero-title-main {
  color: var(--ink);
  font-size: 1.08em;
}

.hero-title-accent {
  margin-top: .12em;
  font-size: .78em;
  line-height: 1.04;
  letter-spacing: -.06em;
}

html[lang="en-US"] h1 {
  font-size: clamp(44px, 4.4vw, 70px);
  line-height: .96;
}

html[lang="en-US"] .hero-title-line {
  max-width: 11ch;
  white-space: normal;
}

html[lang="en-US"] .hero-title-accent {
  font-size: .9em;
}

.hero-copy > p {
  max-width: 550px;
  margin-bottom: 31px;
  color: #9aa7ba;
  font-size: clamp(16px, 1.4vw, 19px);
  line-height: 1.75;
  text-wrap: pretty;
}

.button {
  min-height: 46px;
  padding: 10px 17px;
  border-radius: 9px;
  border-color: rgba(104, 127, 159, .28);
  background: rgba(13, 20, 30, .72);
  font-size: 14px;
  font-weight: 680;
  box-shadow: inset 0 1px 0 rgba(255,255,255,.025);
}
.button:hover {
  border-color: rgba(91, 145, 255, .72);
  box-shadow: 0 14px 34px rgba(8, 28, 59, .32), 0 0 0 1px rgba(75, 141, 255, .1);
}
.button.primary {
  border-color: #5f9cff;
  background: var(--accent);
  color: #07101e;
  box-shadow: 0 13px 34px rgba(48, 111, 216, .2), inset 0 1px 0 rgba(255,255,255,.35);
}

.hero-meta {
  display: flex;
  gap: 12px 20px;
  flex-wrap: wrap;
  margin-top: 26px;
  color: #68778d;
  font: 650 10px/1.4 ui-monospace, "Cascadia Mono", monospace;
  letter-spacing: .08em;
}
.hero-meta span { display: inline-flex; align-items: center; gap: 7px; }
.hero-meta span::before { content: ""; width: 4px; height: 4px; border-radius: 50%; background: var(--accent); }

.hero-product {
  position: relative;
  min-width: 0;
  margin: 0;
  padding: 8px;
  border: 1px solid rgba(81, 119, 170, .28);
  border-radius: 14px;
  background: rgba(8, 13, 21, .68);
  box-shadow: var(--shadow), inset 0 1px 0 rgba(255,255,255,.035);
  transform: perspective(1500px) rotateY(-3.5deg) rotateX(1deg);
  transform-origin: center left;
}
.hero-product::before {
  content: "LIVE PRODUCT / 01";
  position: absolute;
  top: -28px;
  right: 0;
  color: #64738a;
  font: 650 9px/1 ui-monospace, "Cascadia Mono", monospace;
  letter-spacing: .16em;
}
.hero-product picture,
.hero-product img { display: block; width: 100%; }
.hero-product img {
  height: auto;
  border-radius: 8px;
  background: #090d15;
  aspect-ratio: 2048 / 1158;
  object-fit: cover;
}
.hero-product figcaption {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 18px;
  align-items: start;
  padding: 17px 13px 11px;
}
.shot-index {
  padding-top: 3px;
  color: var(--accent2);
  font: 700 10px/1 ui-monospace, "Cascadia Mono", monospace;
  letter-spacing: .12em;
}
.shot-copy strong { display: block; margin-bottom: 5px; font-size: 15px; }
.shot-copy p { max-width: 62ch; margin: 0; color: var(--muted); font-size: 12px; line-height: 1.65; }
.interface-chip {
  position: absolute;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 9px 11px;
  border: 1px solid rgba(105, 146, 204, .28);
  border-radius: 8px;
  background: rgba(5, 10, 17, .86);
  box-shadow: 0 12px 40px rgba(0,0,0,.32);
  color: #bac7da;
  font: 650 10px/1 ui-monospace, "Cascadia Mono", monospace;
  letter-spacing: .06em;
  backdrop-filter: blur(13px);
}
.interface-chip::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: #58a0ff; box-shadow: 0 0 12px #58a0ff; }
.chip-top { top: 21px; left: -34px; }
.chip-bottom { right: -18px; bottom: 84px; }

.proof-strip {
  border-color: rgba(94, 124, 162, .17);
  background: rgba(8, 13, 20, .42);
}
.proof-grid { grid-template-columns: repeat(4, 1fr); }
.proof-item {
  position: relative;
  min-height: 112px;
  padding: 29px 24px 27px;
  border-color: rgba(94, 124, 162, .16);
}
.proof-item::before {
  content: "0" counter(proof);
  counter-increment: proof;
  position: absolute;
  top: 13px;
  right: 17px;
  color: rgba(96, 139, 203, .26);
  font: 700 10px/1 ui-monospace, monospace;
}
.proof-grid { counter-reset: proof; }
.proof-item strong { font-size: 17px; font-weight: 650; }
.proof-item span { font-size: 12px; }

section { padding: 120px 0 132px; }
.section-head { max-width: 860px; margin-bottom: 54px; }
.section-head h2 {
  margin: 15px 0 20px;
  font-size: clamp(38px, 5.2vw, 67px);
  line-height: 1.04;
  letter-spacing: -.062em;
  text-wrap: balance;
}
.section-head p { max-width: 650px; color: var(--muted); font-size: 16px; line-height: 1.8; }

.feature-grid {
  gap: 1px;
  border: 1px solid var(--line);
  border-radius: 13px;
  background: var(--line);
  overflow: hidden;
}
.feature {
  border: 0;
  border-radius: 0;
  background: var(--surface);
  box-shadow: none;
}
.feature:nth-child(1),
.feature:nth-child(3) { background: var(--surface); }
.feature:hover {
  z-index: 1;
  border-color: transparent;
  background: color-mix(in srgb, var(--surface) 91%, var(--accent));
  box-shadow: inset 0 0 0 1px rgba(75, 141, 255, .42);
}
.feature h3 { font-size: 25px; font-weight: 650; }
.feature-index { color: var(--accent2); letter-spacing: .13em; }
.capture-demo { border-radius: 9px; }
.capture-frame { border-width: 1px; border-radius: 6px; }
.router-line { border-radius: 7px; }

.flow-grid {
  border-radius: 12px;
  border-color: var(--line);
}
.flow-step {
  position: relative;
  min-height: 226px;
  border-color: var(--line);
  background: rgba(10, 16, 24, .82);
  transition: background .25s ease, transform .25s ease;
}
.flow-step::after {
  content: "";
  position: absolute;
  right: 23px;
  bottom: 24px;
  width: 22px;
  height: 1px;
  background: var(--accent);
  box-shadow: 8px -4px 0 -3px var(--accent), 8px 4px 0 -3px var(--accent);
}
.flow-step:hover { background: color-mix(in srgb, var(--surface) 91%, var(--accent)); }
.flow-step b { font-weight: 640; }

.analytics-shell,
.scene-main,
.scene-list,
.download-card,
.paper-card {
  border-color: var(--line);
  border-radius: 12px;
  background: rgba(9, 15, 23, .86);
}
.analytics-shell { box-shadow: var(--shadow), inset 0 1px 0 rgba(255,255,255,.025); }
.range-tab { border-radius: 7px; }
.range-tab.active { color: #07101e; }
.chart-panel, .analytics-top { border-color: var(--line) !important; }
#lineArea stop:first-child { stop-color: var(--accent); }
#lineArea stop:last-child { stop-color: var(--accent); }

#showcase {
  overflow: clip;
  background:
    linear-gradient(90deg, transparent, rgba(75, 141, 255, .025) 50%, transparent),
    rgba(5, 9, 14, .36);
  border-block: 1px solid rgba(84, 118, 166, .12);
}
.showcase-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.38fr) minmax(300px, .62fr);
  gap: clamp(36px, 6vw, 82px);
  align-items: center;
}
.showcase-visual {
  position: relative;
  min-width: 0;
  padding: 8px;
  border: 1px solid rgba(83, 122, 176, .26);
  border-radius: 13px;
  background: rgba(8, 13, 21, .74);
  box-shadow: 0 40px 110px rgba(0, 13, 34, .48), inset 0 1px 0 rgba(255,255,255,.03);
}
.showcase-visual::before,
.showcase-visual::after {
  content: "";
  position: absolute;
  pointer-events: none;
}
.showcase-visual::before {
  inset: -22px auto auto -22px;
  width: 72px;
  height: 72px;
  border-top: 1px solid rgba(75, 141, 255, .7);
  border-left: 1px solid rgba(75, 141, 255, .7);
}
.showcase-visual::after {
  right: -22px;
  bottom: -22px;
  width: 72px;
  height: 72px;
  border-right: 1px solid rgba(75, 141, 255, .35);
  border-bottom: 1px solid rgba(75, 141, 255, .35);
}
.showcase-visual picture,
.showcase-visual img { display: block; width: 100%; }
.showcase-visual img {
  height: auto;
  border-radius: 7px;
  aspect-ratio: 2048 / 1158;
  object-fit: cover;
  background: #080c13;
}
.showcase-copy { position: relative; }
.showcase-copy::before {
  content: "02";
  display: block;
  margin-bottom: 28px;
  color: var(--accent2);
  font: 700 14px/1 ui-monospace, "Cascadia Mono", monospace;
  letter-spacing: .16em;
}
.showcase-copy h3 {
  max-width: 12ch;
  margin: 0 0 21px;
  font-size: clamp(31px, 3.7vw, 50px);
  line-height: 1.08;
  letter-spacing: -.052em;
}
.showcase-copy > p { color: var(--muted); line-height: 1.78; }
.capability-list {
  display: grid;
  margin-top: 30px;
  border-top: 1px solid var(--line);
}
.capability-item {
  display: grid;
  grid-template-columns: 30px 1fr;
  gap: 11px;
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
  color: #b7c3d4;
  font-size: 13px;
}
.capability-item span:first-child {
  color: var(--accent2);
  font: 650 10px/1.7 ui-monospace, "Cascadia Mono", monospace;
}

.scenes { gap: 1px; border: 1px solid var(--line); border-radius: 12px; background: var(--line); overflow: hidden; }
.scene-main, .scene-list { border: 0; border-radius: 0; }
.scene-main {
  min-height: 420px;
  background:
    radial-gradient(circle at 75% 28%, rgba(75, 141, 255, .13), transparent 16rem),
    linear-gradient(rgba(83, 122, 176, .05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(83, 122, 176, .05) 1px, transparent 1px),
    var(--surface);
  background-size: auto, 38px 38px, 38px 38px, auto;
}
.scene-row { border-color: var(--line); }
.scene-row b { font-weight: 640; }

.literature-tools input {
  border-radius: 8px;
  background: rgba(9, 15, 23, .86);
}
.literature-grid { gap: 1px; border: 1px solid var(--line); border-radius: 12px; overflow: hidden; background: var(--line); }
.paper-card { border: 0; border-radius: 0; }
.paper-card:hover { transform: none; box-shadow: inset 0 0 0 1px rgba(75, 141, 255, .42); }
.literature-state { border: 0; border-radius: 0; background: var(--surface); }

.privacy-list { border-color: var(--line); counter-reset: privacy; }
.privacy-row { position: relative; padding: 24px 0 24px 51px; border-color: var(--line); counter-increment: privacy; }
.privacy-row::before {
  content: "0" counter(privacy);
  position: absolute;
  top: 28px;
  left: 0;
  color: var(--accent2);
  font: 650 10px/1 ui-monospace, monospace;
  letter-spacing: .1em;
}
.privacy-row b { font-weight: 640; }

.download-grid { gap: 1px; border: 1px solid var(--line); border-radius: 12px; overflow: hidden; background: var(--line); }
.download-card { min-height: 286px; border: 0; border-radius: 0; }
.download-card.windows::before { height: 2px; background: var(--accent); }
.download-card h3 { margin-top: 25px; font-size: 28px; font-weight: 650; }
.status { border-radius: 5px; }
.hash { padding-top: 19px; border-top: 1px solid var(--line); font-size: 10px; line-height: 1.7; }

footer { border-color: var(--line); background: rgba(5, 8, 13, .48); }
.footer-inner b { font-weight: 680; }
.footer-inner a { text-underline-offset: 4px; }

.reveal { transform: translateY(20px); transition-duration: .85s; }

html[data-theme="light"] .hero-copy > p,
html[data-theme="light"] .nav-links a { color: var(--muted); }
html[data-theme="light"] .button,
html[data-theme="light"] .analytics-shell,
html[data-theme="light"] .scene-main,
html[data-theme="light"] .scene-list,
html[data-theme="light"] .download-card,
html[data-theme="light"] .paper-card,
html[data-theme="light"] .flow-step,
html[data-theme="light"] .feature { background: rgba(249, 251, 253, .9); }
html[data-theme="light"] .hero-product,
html[data-theme="light"] .showcase-visual { background: rgba(235, 241, 248, .88); }
html[data-theme="light"] #showcase { background: rgba(226, 234, 244, .4); }

@media (max-width: 1080px) {
  .brand::after { display: none; }
  .nav-links { gap: 16px; }
  .hero-grid { grid-template-columns: .9fr 1.1fr; gap: 34px; }
  .chip-top { left: -14px; }
  .chip-bottom { right: -8px; }
}

@media (max-width: 900px) {
  :root { --wrap: min(100% - 32px, 1280px); }
  .nav-links {
    top: 68px;
    left: 0;
    right: 0;
    border-radius: 12px;
    background: rgba(7, 12, 19, .97);
  }
  .hero { padding-top: 118px; }
  .hero-grid { grid-template-columns: 1fr; }
  .hero-copy { max-width: 680px; }
  h1 { max-width: 100%; }
  .hero-product { max-width: 840px; transform: none; }
  .hero-product::before { top: -23px; }
  .chip-top { left: 18px; }
  .chip-bottom { right: 18px; }
  .showcase-layout { grid-template-columns: 1fr; gap: 55px; }
  .showcase-copy { max-width: 660px; }
  .showcase-copy h3 { max-width: 15ch; }
}

@media (max-width: 560px) {
  :root { --wrap: min(100% - 24px, 1280px); }
  .nav { top: 8px; width: calc(100% - 16px); }
  .nav .wrap { padding-inline: 13px; }
  .nav-inner { height: 54px; }
  .brand { font-size: 16px; }
  .brand-mark { width: 29px; height: 29px; }
  .hero { padding: 98px 0 60px; }
  .hero::after { display: none; }
  .hero-grid { gap: 50px; padding-top: 0; }
  h1 { font-size: clamp(42px, 13vw, 58px); }
  .hero-copy > p { font-size: 16px; }
  .actions { display: grid; grid-template-columns: 1fr; }
  .interface-chip { display: none; }
  .hero-product { padding: 5px; border-radius: 9px; }
  .hero-product img { border-radius: 5px; }
  .hero-product figcaption { grid-template-columns: 1fr; gap: 8px; padding: 13px 8px 7px; }
  .proof-grid { grid-template-columns: 1fr 1fr; }
  .proof-item:nth-child(odd) { border-right: 1px solid var(--line); }
  .proof-item:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
  .proof-item { min-height: 126px; padding: 28px 17px 20px; }
  section { padding: 86px 0 98px; }
  .section-head { margin-bottom: 38px; }
  .section-head h2 { font-size: clamp(35px, 11vw, 50px); }
  .showcase-visual { padding: 5px; }
  .showcase-visual::before, .showcase-visual::after { width: 38px; height: 38px; }
  .showcase-copy h3 { font-size: 34px; }
  .feature:nth-child(1) { min-height: 490px; }
  .flow-step { min-height: 190px; }
  .download-card { min-height: 260px; }
}

@media (prefers-reduced-motion: reduce) {
  .hero-product { transform: none; }
  .nav-links a::after { transition: none; }
}