:root {
    --landing-bg: #07080c;
    --landing-panel: #101219;
    --landing-panel-soft: #151821;
    --landing-line: #292d38;
    --landing-text: #f7f8fb;
    --landing-muted: #9ca3b2;
    --landing-cyan: #22d3c5;
    --landing-blue: #4f72ff;
    --landing-yellow: #ffc21a;
    --landing-danger: #ef5a67;
    --landing-radius: 8px;
    color-scheme: dark;
}

*,
*::before,
*::after {
    box-sizing: border-box;
    letter-spacing: 0;
}

html {
    min-width: 320px;
    scroll-behavior: smooth;
    background: var(--landing-bg);
}

body {
    min-width: 320px;
    min-height: 100%;
    margin: 0;
    overflow-x: hidden;
    color: var(--landing-text);
    background: var(--landing-bg);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
    -webkit-font-smoothing: antialiased;
}

body.auth-open,
body.build-open,
body.viewer-open {
    overflow: hidden;
}

button,
input {
    font: inherit;
}

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

button {
    cursor: pointer;
}

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

button:focus-visible,
a:focus-visible,
input:focus-visible {
    outline: 3px solid rgba(34, 211, 197, .28);
    outline-offset: 2px;
}

svg.lucide {
    flex: 0 0 auto;
    width: 18px;
    height: 18px;
    stroke: currentColor;
}

.skip-link {
    position: fixed;
    top: max(8px, env(safe-area-inset-top));
    left: max(8px, env(safe-area-inset-left));
    z-index: 120;
    min-height: 44px;
    padding: 0 14px;
    border-radius: 7px;
    color: #07110f;
    background: var(--landing-cyan);
    display: flex;
    align-items: center;
    font-size: 12px;
    font-weight: 800;
    transform: translateY(calc(-100% - 18px));
    transition: transform 180ms ease;
}

.skip-link:focus {
    transform: translateY(0);
}

.landing-container {
    width: min(100% - 40px, 1160px);
    margin: 0 auto;
}

.landing-header {
    position: absolute;
    inset: 0 0 auto;
    z-index: 20;
    width: min(100% - 40px, 1180px);
    min-height: 74px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr auto;
    align-items: center;
    gap: 24px;
}

.landing-brand {
    display: inline-flex;
    align-items: center;
    gap: 9px;
}

.landing-brand > span,
.auth-brand > span {
    width: 36px;
    height: 36px;
    border: 1px solid rgba(255, 255, 255, .16);
    border-radius: 7px;
    color: var(--landing-cyan);
    background: #11141b;
    display: grid;
    place-items: center;
    box-shadow: 0 0 24px rgba(34, 211, 197, .14);
}

.landing-brand strong {
    font-size: 18px;
    font-weight: 820;
}

.landing-header nav {
    justify-self: center;
    display: flex;
    align-items: center;
    gap: 28px;
}

.landing-header nav a {
    color: #b5bbc7;
    font-size: 12px;
    font-weight: 650;
}

.landing-header nav a:hover {
    color: #fff;
}

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

.landing-header-actions button,
.hero-actions button,
.landing-section-head > button,
.landing-cta button {
    border-radius: 7px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-weight: 760;
    transition: border-color 180ms ease, background-color 180ms ease, color 180ms ease, transform 180ms ease, box-shadow 180ms ease;
}

.header-login {
    min-height: 44px;
    border: 1px solid rgba(255, 255, 255, .18);
    padding: 0 12px;
    color: #fff;
    background: rgba(7, 8, 12, .5);
}

.header-start {
    min-height: 44px;
    border: 0;
    padding: 0 14px;
    color: #171300;
    background: var(--landing-yellow);
}

.landing-hero {
    position: relative;
    height: calc(100svh - 96px);
    min-height: 560px;
    overflow: hidden;
    isolation: isolate;
    touch-action: pan-y;
    background-image: url("/assets/images/landing/hero-tech.jpg");
    background-position: center;
    background-size: cover;
    display: grid;
    place-items: center;
}

.landing-hero::before {
    content: "";
    position: absolute;
    inset: 0;
    z-index: -1;
    background: rgba(3, 5, 12, .94);
}

.landing-hero::after {
    content: "";
    position: absolute;
    inset: 74px 0 auto;
    z-index: -1;
    height: 1px;
    background: rgba(255, 255, 255, .08);
}

.hero-content {
    position: relative;
    z-index: 3;
    width: min(100% - 40px, 578px);
    padding: 0;
    transform: translateY(30px);
    display: grid;
    justify-items: center;
    text-align: center;
}

.hero-kicker {
    min-height: 30px;
    border: 1px solid rgba(0, 202, 224, .2);
    border-radius: 15px;
    padding: 0 13px;
    color: var(--landing-cyan);
    background: rgba(0, 202, 224, .06);
    display: inline-flex;
    align-items: center;
    gap: 7px;
    font-size: 12px;
    font-weight: 600;
}

.hero-kicker svg {
    width: 15px;
    height: 15px;
}

.hero-content h1 {
    max-width: 520px;
    margin: 28px 0 0;
    color: #f5fbff;
    font-size: 64px;
    line-height: 1.1;
    font-weight: 900;
}

.hero-content h1 em {
    display: block;
    font-style: normal;
}

.hero-content h1 em {
    min-height: 1.1em;
    margin-top: 4px;
    color: var(--landing-cyan);
    font-size: 1em;
    font-weight: 900;
}

.hero-content > p {
    max-width: 578px;
    margin: 16px 0 0;
    color: #8c99a0;
    font-size: 16px;
    line-height: 1.75;
}

.hero-actions {
    margin-top: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.hero-actions button {
    min-width: 136px;
    min-height: 51px;
    padding: 0 22px;
}

.hero-primary {
    border: 0;
    color: #171300;
    background: var(--landing-yellow);
    box-shadow: 0 12px 34px rgba(255, 194, 26, .2);
}

.hero-secondary {
    border: 1px solid rgba(255, 255, 255, .2);
    color: #fff;
    background: rgba(12, 14, 20, .72);
}

.hero-stats {
    width: 392px;
    max-width: 100%;
    margin-top: 58px;
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 8px;
}

.hero-stats > div {
    min-height: 63px;
    border: 1px solid rgba(255, 255, 255, .11);
    border-radius: 7px;
    background: rgba(8, 10, 16, .72);
    display: grid;
    place-items: center;
    align-content: center;
    gap: 2px;
}

.hero-stats strong {
    color: #fff;
    font-size: 20px;
}

.hero-stats span {
    color: #8f96a4;
    font-size: 10px;
}

.hero-next {
    position: absolute;
    left: 50%;
    bottom: 12px;
    z-index: 4;
    width: 34px;
    height: 34px;
    transform: translateX(-50%);
    border: 1px solid rgba(255, 255, 255, .14);
    border-radius: 50%;
    color: #a8afbc;
    display: grid;
    place-items: center;
}

.model-orbit {
    position: absolute;
    top: calc(54% + 12px);
    left: 50%;
    z-index: 2;
    width: 0;
    height: 0;
    opacity: .84;
    transform: scale(1.16);
    transform-origin: 0 0;
    pointer-events: none;
    --orbit-radius: 409.6px;
}

.orbit-bloom,
.orbit-spin,
.orbit-item {
    position: absolute;
    top: 0;
    left: 0;
    width: 0;
    height: 0;
}

.orbit-bloom {
    animation: tkai-orbit-bloom 2.1s cubic-bezier(.18, .8, .2, 1) both;
}

.orbit-spin {
    animation: tkai-orbit-spin 80s linear infinite;
    will-change: transform;
}

.orbit-item {
    transform: rotate(var(--a)) translateY(calc(var(--orbit-radius) * -1));
    transform-origin: 0 0;
}

.orbit-icon-wrap {
    position: absolute;
    top: 0;
    left: 0;
    width: 70px;
    height: 52px;
    color: #f8fafc;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 3px;
    animation: tkai-orbit-counter 80s linear infinite;
    transform-origin: center;
    will-change: transform;
}

.orbit-glyph {
    width: 30px;
    height: 30px;
    flex: 0 0 30px;
    border: 1px solid rgba(255, 255, 255, .22);
    border-radius: 7px;
    background: rgba(8, 11, 18, .9);
    box-shadow: 0 5px 16px rgba(0, 0, 0, .32), inset 0 0 0 1px rgba(255, 255, 255, .035);
    display: grid;
    place-items: center;
}

.orbit-glyph > svg {
    width: 20px;
    height: 20px;
    color: currentColor;
    stroke-width: 2;
}

.provider-mark {
    width: 20px;
    height: 20px;
    flex: 0 0 20px;
    color: inherit;
    background: currentColor;
    -webkit-mask: var(--provider-mark) center / contain no-repeat;
    mask: var(--provider-mark) center / contain no-repeat;
}

.provider-logo {
    width: 21px;
    height: 21px;
    object-fit: contain;
    display: block;
    filter: drop-shadow(0 1px 5px rgba(0, 0, 0, .24));
}

.orbit-name {
    width: 70px;
    overflow: hidden;
    color: rgba(225, 238, 245, .72);
    font-size: 9.8px;
    line-height: 13px;
    font-weight: 500;
    text-align: center;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.provider-qwen { color: #717cff; }
.provider-openai { color: #edf2f7; }
.provider-happyhorse { color: #9c7cff; }
.provider-doubao { color: #7667e8; }
.provider-grok { color: #dfe7ef; }
.provider-kling { color: #796cff; }
.provider-claude { color: #d9a785; }
.provider-gemini { color: #61a4ff; }
.provider-deepseek { color: #4d8dff; }
.provider-minimax { color: #e25b8f; }
.provider-suno { color: #ffb21a; }
.provider-pixverse { color: #b56bff; }
.provider-vidu { color: #5f8cff; }
.provider-mimo { color: #efefef; }

.hero-model-feature {
    position: absolute;
    top: calc(48% + 12px);
    right: 30px;
    z-index: 2;
    width: 236px;
    min-height: 132px;
    margin: 0;
    padding: 18px 16px;
    color: #f5fbff;
    background: rgba(0, 0, 0, .11);
    display: flex;
    align-items: center;
    gap: 12px;
    opacity: .88;
}

.hero-model-feature > svg {
    width: 32px;
    height: 32px;
    color: #eaf0f6;
}

.hero-model-feature strong {
    color: #55dce2;
    font-size: 18px;
}

.hero-model-feature p {
    margin: 8px 0 0;
    color: #b8c3cc;
    font-size: 12px;
    line-height: 1.55;
}

body.auth-open .model-orbit,
body.build-open .model-orbit {
    opacity: .34;
}

body.auth-open .orbit-spin,
body.auth-open .orbit-icon-wrap,
body.build-open .orbit-spin,
body.build-open .orbit-icon-wrap,
body.viewer-open .orbit-spin,
body.viewer-open .orbit-icon-wrap,
body.orbit-paused .orbit-spin,
body.orbit-paused .orbit-icon-wrap {
    animation-play-state: paused;
}

@keyframes tkai-orbit-bloom {
    from { opacity: 0; transform: scale(.76); }
    to { opacity: 1; transform: scale(1); }
}

@keyframes tkai-orbit-spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

@keyframes tkai-orbit-counter {
    from { transform: translate(-50%, -50%) rotate(var(--na)); }
    to { transform: translate(-50%, -50%) rotate(calc(var(--na) - 360deg)); }
}

.landing-band {
    padding: 92px 0;
}

.workflow-band {
    padding-top: 32px;
    background: #0b0d12;
}

.capability-band {
    background: #f4f6f8;
    color: #17181c;
}

.inspiration-band {
    background: #0a0c11;
}

.landing-section-head {
    display: flex;
    align-items: end;
    justify-content: space-between;
    gap: 34px;
}

.landing-section-head > div > span {
    color: var(--landing-cyan);
    font-size: 10px;
    font-weight: 820;
    text-transform: uppercase;
}

.landing-section-head h2 {
    margin: 7px 0 0;
    font-size: 34px;
    line-height: 1.2;
}

.landing-section-head > p {
    max-width: 440px;
    margin: 0;
    color: var(--landing-muted);
    font-size: 13px;
    line-height: 1.75;
}

.landing-section-head > button {
    min-height: 42px;
    border: 1px solid #d6dae1;
    padding: 0 13px;
    color: #17181c;
    background: #fff;
}

.workflow-grid,
.capability-grid {
    margin-top: 36px;
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 10px;
}

.workflow-grid article,
.capability-grid article {
    position: relative;
    min-height: 210px;
    border: 1px solid #262a33;
    border-radius: var(--landing-radius);
    padding: 18px;
    background: #11141b;
}

.workflow-grid article > b {
    position: absolute;
    top: 14px;
    right: 15px;
    color: #454b58;
    font-size: 24px;
}

.workflow-grid article > svg,
.capability-grid article > svg {
    width: 38px;
    height: 38px;
    padding: 9px;
    border-radius: 7px;
    color: var(--landing-cyan);
    background: rgba(34, 211, 197, .1);
}

.workflow-grid h3,
.capability-grid h3 {
    margin: 38px 0 0;
    font-size: 17px;
}

.workflow-grid p,
.capability-grid p {
    margin: 10px 0 0;
    color: var(--landing-muted);
    font-size: 12px;
    line-height: 1.7;
}

.capability-band .landing-section-head > div > span,
.capability-grid article > span {
    color: var(--landing-blue);
}

.capability-grid article {
    border-color: #dfe3e9;
    color: #17181c;
    background: #fff;
    box-shadow: 0 12px 30px rgba(23, 24, 28, .05);
}

.capability-grid article > svg {
    color: var(--landing-blue);
    background: #edf1ff;
}

.capability-grid article > span {
    position: absolute;
    top: 21px;
    right: 18px;
    font-size: 9px;
    font-weight: 800;
    text-transform: uppercase;
}

.capability-grid p {
    color: #717782;
}

.inspiration-grid {
    margin-top: 36px;
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 12px;
}

.inspiration-status {
    min-height: 20px;
    margin: 28px 0 -20px;
    color: #858d9b;
    font-size: 11px;
    text-align: center;
}

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

.inspiration-card,
.inspiration-skeleton {
    min-width: 0;
    overflow: hidden;
    border: 1px solid #272b35;
    border-radius: 8px;
    background: #11141b;
}

.inspiration-card {
    transition: border-color 200ms ease, transform 200ms cubic-bezier(.16, 1, .3, 1), box-shadow 200ms ease;
}

.inspiration-media {
    position: relative;
    width: 100%;
    aspect-ratio: 1 / 1.06;
    overflow: hidden;
    border: 0;
    padding: 0;
    color: #fff;
    background: #0d1016;
    display: block;
}

.inspiration-media img,
.inspiration-media video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 360ms cubic-bezier(.16, 1, .3, 1), opacity 180ms ease;
}

.inspiration-media-fallback {
    width: 100%;
    height: 100%;
    padding: 20px;
    color: #7c8795;
    background: #10141b;
    display: grid;
    place-items: center;
    align-content: center;
    gap: 10px;
}

.inspiration-media-fallback svg {
    width: 34px;
    height: 34px;
    color: var(--landing-cyan);
}

.inspiration-media-fallback b {
    font-size: 11px;
}

.inspiration-preview-mark {
    position: absolute;
    top: 10px;
    right: 10px;
    width: 34px;
    height: 34px;
    border: 1px solid rgba(255, 255, 255, .2);
    border-radius: 6px;
    color: #fff;
    background: rgba(5, 7, 12, .7);
    backdrop-filter: blur(8px);
    display: grid;
    place-items: center;
    opacity: 0;
    transform: translateY(4px);
    transition: opacity 180ms ease, transform 180ms ease;
}

.inspiration-preview-mark svg {
    width: 16px;
    height: 16px;
}

.inspiration-card-copy {
    min-height: 110px;
    padding: 13px;
    display: grid;
    align-content: start;
    gap: 7px;
}

.inspiration-card-copy > span {
    color: var(--landing-cyan);
    display: flex;
    align-items: center;
    gap: 5px;
    font-size: 9px;
    font-weight: 780;
}

.inspiration-card-copy > span svg {
    width: 13px;
    height: 13px;
}

.inspiration-card-copy h3 {
    margin: 0;
    font-size: 14px;
    line-height: 1.45;
    display: -webkit-box;
    overflow: hidden;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 2;
}

.inspiration-card-copy small {
    color: #8e95a3;
    display: flex;
    align-items: center;
    gap: 5px;
    font-size: 10px;
}

.inspiration-card-copy small svg {
    width: 13px;
    height: 13px;
}

.inspiration-skeleton {
    min-height: 408px;
    padding: 0 12px 14px;
}

.inspiration-skeleton > div,
.inspiration-skeleton > p,
.inspiration-skeleton > span {
    position: relative;
    overflow: hidden;
    background: #1a1e27;
}

.inspiration-skeleton > div::after,
.inspiration-skeleton > p::after,
.inspiration-skeleton > span::after {
    content: "";
    position: absolute;
    inset: 0;
    background: rgba(255, 255, 255, .06);
    transform: translateX(-100%);
    animation: inspiration-loading 1.25s ease-in-out infinite;
}

.inspiration-skeleton > div {
    width: calc(100% + 24px);
    aspect-ratio: 1 / 1.06;
    margin-left: -12px;
}

.inspiration-skeleton > p {
    width: 76%;
    height: 14px;
    margin: 15px 0 10px;
    border-radius: 3px;
}

.inspiration-skeleton > span {
    width: 48%;
    height: 10px;
    border-radius: 3px;
    display: block;
}

@keyframes inspiration-loading {
    to { transform: translateX(100%); }
}

.inspiration-recovery,
.inspiration-empty {
    grid-column: 1 / -1;
    min-height: 220px;
    border: 1px dashed #303642;
    border-radius: 8px;
    padding: 30px;
    color: #8f97a5;
    background: #0f1218;
    display: grid;
    place-items: center;
    align-content: center;
    gap: 9px;
    text-align: center;
}

.inspiration-recovery[hidden] {
    display: none;
}

.inspiration-recovery {
    margin-top: 36px;
}

.inspiration-recovery > svg,
.inspiration-empty > svg {
    width: 30px;
    height: 30px;
    color: var(--landing-cyan);
}

.inspiration-recovery strong,
.inspiration-empty strong {
    color: #f7f8fb;
    font-size: 15px;
}

.inspiration-recovery span,
.inspiration-empty span {
    font-size: 11px;
}

.inspiration-recovery button,
.inspiration-empty button,
.inspiration-more {
    min-height: 44px;
    border: 1px solid #343a46;
    border-radius: 7px;
    padding: 0 14px;
    color: #fff;
    background: #171b23;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 7px;
    font-size: 11px;
    font-weight: 760;
}

.inspiration-recovery button {
    margin-top: 6px;
}

.inspiration-more {
    margin: 28px auto 0;
}

.inspiration-more[hidden] {
    display: none;
}

.landing-cta {
    padding: 90px 0;
    color: #171300;
    background: var(--landing-yellow);
    text-align: center;
}

.landing-cta .landing-container {
    display: grid;
    justify-items: center;
}

.landing-cta .landing-container > span {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 10px;
    font-weight: 820;
}

.landing-cta h2 {
    margin: 15px 0 0;
    font-size: 36px;
}

.landing-cta button {
    min-height: 48px;
    margin-top: 24px;
    border: 0;
    padding: 0 18px;
    color: #fff;
    background: #17181c;
}

.landing-footer {
    padding: 30px 0;
    background: #07080c;
}

.landing-footer .landing-container {
    display: grid;
    grid-template-columns: auto 1fr;
    align-items: center;
    gap: 22px;
}

.landing-footer p {
    margin: 0;
    color: #858c9a;
    font-size: 11px;
}

.landing-footer .landing-brand > span {
    width: 30px;
    height: 30px;
}

.landing-footer .landing-brand strong {
    font-size: 14px;
}

.inspiration-viewer {
    position: fixed;
    inset: 0;
    z-index: 110;
    padding: max(18px, env(safe-area-inset-top)) max(18px, env(safe-area-inset-right)) max(18px, env(safe-area-inset-bottom)) max(18px, env(safe-area-inset-left));
    overflow-y: auto;
    background: rgba(2, 3, 7, .88);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    display: grid;
    place-items: center;
}

.inspiration-viewer[hidden] {
    display: none;
}

.inspiration-viewer > section {
    position: relative;
    width: min(100%, 980px);
    max-height: calc(100svh - 36px);
    overflow: hidden;
    border: 1px solid #303540;
    border-radius: 8px;
    background: #0c0f15;
    box-shadow: 0 34px 90px rgba(0, 0, 0, .58);
    display: grid;
    grid-template-columns: minmax(0, 1fr) 280px;
}

.inspiration-viewer-close {
    position: absolute;
    top: 12px;
    right: 12px;
    z-index: 2;
    width: 44px;
    height: 44px;
    border: 1px solid rgba(255, 255, 255, .18);
    border-radius: 7px;
    padding: 0;
    color: #fff;
    background: rgba(7, 9, 14, .76);
    display: grid;
    place-items: center;
}

.inspiration-viewer-media {
    min-width: 0;
    min-height: min(70svh, 680px);
    background: #05070b;
    display: grid;
    place-items: center;
}

.inspiration-viewer-media > img,
.inspiration-viewer-media > video {
    width: 100%;
    height: 100%;
    max-height: min(82svh, 760px);
    object-fit: contain;
}

.inspiration-viewer-audio {
    width: min(86%, 520px);
    min-height: 230px;
    border: 1px solid #252b35;
    border-radius: 8px;
    padding: 28px;
    background: #11161d;
    display: grid;
    place-items: center;
    align-content: center;
    gap: 24px;
}

.inspiration-viewer-audio > svg {
    width: 48px;
    height: 48px;
    color: var(--landing-cyan);
}

.inspiration-viewer-audio audio {
    width: 100%;
}

.inspiration-viewer > section > footer {
    padding: 74px 24px 28px;
    display: grid;
    align-content: end;
    gap: 10px;
}

.inspiration-viewer footer > span {
    color: var(--landing-cyan);
    font-size: 10px;
    font-weight: 800;
}

.inspiration-viewer footer h2 {
    margin: 0;
    color: #fff;
    font-size: 22px;
    line-height: 1.35;
    overflow-wrap: anywhere;
}

.inspiration-viewer footer p {
    margin: 0;
    color: #89919f;
    font-size: 12px;
}

@media (hover: hover) and (pointer: fine) {
    .header-login:hover,
    .hero-secondary:hover,
    .build-close:hover,
    .inspiration-recovery button:hover,
    .inspiration-empty button:hover,
    .inspiration-more:hover {
        border-color: #596171;
        background: #20252e;
    }

    .header-start:hover,
    .hero-primary:hover,
    .build-copy:hover {
        background: #ffd24d;
        box-shadow: 0 14px 38px rgba(255, 194, 26, .24);
    }

    .inspiration-card:hover {
        border-color: #3d4552;
        transform: translateY(-3px);
        box-shadow: 0 18px 40px rgba(0, 0, 0, .25);
    }

    .inspiration-card:hover .inspiration-media img,
    .inspiration-card:hover .inspiration-media video {
        transform: scale(1.025);
    }

    .inspiration-card:hover .inspiration-preview-mark {
        opacity: 1;
        transform: translateY(0);
    }
}

button:active {
    transform: scale(.98);
}

.auth-overlay,
.build-overlay,
.policy-overlay {
    position: fixed;
    inset: 0;
    z-index: 100;
    padding: max(18px, env(safe-area-inset-top)) 14px max(18px, env(safe-area-inset-bottom));
    overflow-y: auto;
    background: rgba(2, 3, 7, .84);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}

.auth-overlay[hidden],
.build-overlay[hidden],
.policy-overlay[hidden],
.auth-form[hidden],
.auth-message[hidden] {
    display: none !important;
}

.auth-overlay {
    display: grid;
    place-items: center;
}

.build-overlay {
    z-index: 105;
    display: grid;
    place-items: center;
    animation: build-overlay-in .18s ease-out both;
}

.build-modal {
    position: relative;
    width: min(100%, 438px);
    overflow: hidden;
    border: 1px solid #303641;
    border-radius: 8px;
    padding: 30px;
    color: var(--landing-text);
    background: #0d1016;
    box-shadow: 0 32px 90px rgba(0, 0, 0, .58), inset 3px 0 0 var(--landing-yellow);
    animation: build-modal-in .24s cubic-bezier(.2, .8, .2, 1) both;
}

@keyframes build-overlay-in {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes build-modal-in {
    from { opacity: 0; transform: translateY(10px) scale(.985); }
    to { opacity: 1; transform: translateY(0) scale(1); }
}

.build-close {
    position: absolute;
    top: 12px;
    right: 12px;
    width: 44px;
    height: 44px;
    border: 1px solid #2b303b;
    border-radius: 6px;
    padding: 0;
    color: #aeb5c2;
    background: #151922;
    display: grid;
    place-items: center;
}

.build-heading {
    padding-right: 42px;
}

.build-heading > span {
    min-height: 26px;
    color: var(--landing-cyan);
    display: inline-flex;
    align-items: center;
    gap: 7px;
    font-size: 10px;
    font-weight: 780;
}

.build-heading > span svg {
    width: 15px;
    height: 15px;
}

.build-heading h2 {
    margin: 10px 0 0;
    color: #f7f9fc;
    font-size: 26px;
    line-height: 1.3;
}

.build-heading p {
    margin: 10px 0 0;
    color: #919aa8;
    font-size: 12px;
    line-height: 1.75;
}

.build-contact {
    margin-top: 26px;
    border-top: 1px solid #282e38;
    border-bottom: 1px solid #282e38;
    display: grid;
    grid-template-columns: minmax(0, .8fr) minmax(0, 1.2fr);
}

.build-contact > div {
    min-width: 0;
    padding: 17px 0;
    display: grid;
    gap: 6px;
}

.build-contact > div + div {
    border-left: 1px solid #282e38;
    padding-left: 20px;
}

.build-contact span {
    color: #717b89;
    font-size: 10px;
}

.build-contact strong {
    overflow-wrap: anywhere;
    color: #f6f8fb;
    font-size: 16px;
    letter-spacing: 0;
}

.build-copy {
    width: 100%;
    min-height: 48px;
    margin-top: 22px;
    border: 0;
    border-radius: 7px;
    padding: 0 16px;
    color: #151100;
    background: var(--landing-yellow);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-size: 12px;
    font-weight: 820;
}

.build-copy.is-copied {
    color: #061311;
    background: var(--landing-cyan);
}

.build-copy-status {
    min-height: 18px;
    margin: 10px 0 -4px;
    color: #7ce5dc;
    font-size: 11px;
    text-align: center;
}

.build-copy-status[hidden] {
    display: none;
}

.auth-modal {
    position: relative;
    width: min(100%, 420px);
    border: 1px solid #2a2e39;
    border-radius: 9px;
    padding: 22px;
    color: var(--landing-text);
    background: #0d1016;
    box-shadow: 0 28px 80px rgba(0, 0, 0, .5);
}

.auth-close,
.policy-overlay header button {
    width: 44px;
    height: 44px;
    border: 1px solid #2b303b;
    border-radius: 6px;
    padding: 0;
    color: #aeb5c2;
    background: #151922;
    display: grid;
    place-items: center;
}

.auth-close {
    position: absolute;
    top: 12px;
    right: 12px;
}

.auth-brand {
    display: grid;
    justify-items: center;
    text-align: center;
}

.auth-brand > span {
    width: 58px;
    height: 58px;
    overflow: hidden;
    border-color: rgba(73, 154, 255, .34);
    border-radius: 50%;
    background: #090d15;
    box-shadow: 0 0 0 4px rgba(48, 124, 255, .08), 0 14px 30px rgba(0, 0, 0, .3);
}

.auth-brand > span img {
    width: 100%;
    height: 100%;
    display: block;
    object-fit: cover;
}

.auth-brand strong {
    margin-top: 9px;
    font-size: 22px;
}

.auth-brand p {
    margin: 5px 0 0;
    color: #8f97a6;
    font-size: 11px;
}

.auth-tabs {
    margin-top: 18px;
    border: 1px solid #292e38;
    border-radius: 7px;
    padding: 3px;
    background: #090b10;
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 3px;
}

.auth-tabs button {
    min-height: 38px;
    border: 0;
    border-radius: 5px;
    color: #8f96a4;
    background: transparent;
    font-size: 12px;
    font-weight: 700;
}

.auth-tabs button.active {
    color: #fff;
    background: #1b202b;
    box-shadow: inset 0 0 0 1px rgba(34, 211, 197, .3);
}

.auth-form {
    margin-top: 16px;
    display: grid;
    gap: 12px;
}

.auth-form > label:not(.auth-agree) {
    display: grid;
    gap: 6px;
}

.auth-form > label > span {
    color: #b6bdc9;
    font-size: 11px;
    font-weight: 650;
}

.auth-form > label > div {
    min-height: 46px;
    border: 1px solid #2a2f3a;
    border-radius: 7px;
    padding: 0 10px;
    background: #090b10;
    display: grid;
    grid-template-columns: 20px minmax(0, 1fr) auto;
    align-items: center;
    gap: 8px;
}

.auth-form > label > div:focus-within {
    border-color: rgba(34, 211, 197, .65);
    box-shadow: 0 0 0 3px rgba(34, 211, 197, .08);
}

.auth-form > label > div > svg {
    width: 17px;
    height: 17px;
    color: #737c8b;
}

.auth-form input:not([type="checkbox"]) {
    width: 100%;
    min-width: 0;
    height: 44px;
    border: 0;
    outline: 0;
    color: #fff;
    background: transparent;
    font-size: 13px;
}

.auth-form input::placeholder {
    color: #626a78;
}

.auth-form [data-toggle-password] {
    width: 44px;
    height: 44px;
    border: 0;
    padding: 0;
    color: #79818f;
    background: transparent;
    display: grid;
    place-items: center;
}

.auth-submit {
    min-height: 46px;
    border: 0;
    border-radius: 7px;
    padding: 0 14px;
    color: #07110f;
    background: var(--landing-cyan);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-weight: 800;
}

.auth-submit:disabled {
    cursor: wait;
    opacity: .62;
}

.auth-submit.is-loading svg {
    animation: auth-spin .8s linear infinite;
}

@keyframes auth-spin {
    to { transform: rotate(360deg); }
}

.auth-switch {
    margin: -2px 0 0;
    color: #7f8795;
    text-align: center;
    font-size: 11px;
}

.auth-switch button,
.auth-agree button {
    border: 0;
    padding: 0;
    color: var(--landing-cyan);
    background: transparent;
    font-size: inherit;
}

.auth-agree {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 4px;
    color: #858d9b;
    font-size: 10px;
    line-height: 1.5;
}

.auth-agree input {
    width: 15px;
    height: 15px;
    margin: 0 3px 0 0;
    accent-color: var(--landing-cyan);
}

.auth-message {
    min-height: 38px;
    margin-top: 12px;
    border: 1px solid rgba(239, 90, 103, .34);
    border-radius: 6px;
    padding: 9px 10px;
    color: #ffabb2;
    background: rgba(239, 90, 103, .08);
    font-size: 11px;
    line-height: 1.55;
    text-align: center;
}

.auth-message.success {
    border-color: rgba(34, 211, 197, .35);
    color: #75e8de;
    background: rgba(34, 211, 197, .08);
}

.auth-divider {
    position: relative;
    margin: 18px 0 10px;
    border-top: 1px solid #252a34;
    text-align: center;
}

.auth-divider span {
    position: relative;
    top: -8px;
    padding: 0 9px;
    color: #717988;
    background: #0d1016;
    font-size: 9px;
}

.wechat-login {
    min-height: 42px;
    border: 1px solid #29303a;
    border-radius: 7px;
    color: #fff;
    background: #141821;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 7px;
    font-size: 12px;
    font-weight: 720;
}

.wechat-login svg {
    color: #34c759;
}

.policy-overlay {
    display: grid;
    place-items: center;
}

.policy-overlay > section {
    width: min(100%, 560px);
    max-height: min(82svh, 680px);
    overflow: hidden;
    border: 1px solid #2a2f39;
    border-radius: 9px;
    color: #e8ebf0;
    background: #10131a;
    display: grid;
    grid-template-rows: auto minmax(0, 1fr);
}

.policy-overlay header {
    min-height: 62px;
    border-bottom: 1px solid #292d37;
    padding: 0 14px 0 18px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}

.policy-overlay h2 {
    margin: 0;
    font-size: 18px;
}

#policyBody {
    overflow-y: auto;
    padding: 18px;
    color: #aab1be;
    font-size: 12px;
    line-height: 1.85;
}

#policyBody h3 {
    margin: 20px 0 6px;
    color: #fff;
    font-size: 14px;
}

#policyBody h3:first-child {
    margin-top: 0;
}

#policyBody p {
    margin: 0 0 10px;
}

@media (max-width: 900px) {
    .landing-header nav {
        display: none;
    }

    .landing-header {
        grid-template-columns: 1fr auto;
    }

    .model-orbit {
        top: 50%;
        --orbit-radius: 360px;
        transform: scale(.82);
    }

    .hero-model-feature {
        display: none;
    }

    .workflow-grid,
    .capability-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .inspiration-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 620px) {
    .landing-container {
        width: min(100% - 24px, 1160px);
    }

    .landing-header {
        width: 100%;
        min-height: 66px;
        padding-right: max(14px, env(safe-area-inset-right));
        padding-left: max(14px, env(safe-area-inset-left));
    }

    .landing-header-actions {
        gap: 6px;
    }

    .header-login {
        width: 44px;
        min-width: 44px;
        padding: 0;
    }

    .header-login span {
        position: absolute;
        width: 1px;
        height: 1px;
        margin: -1px;
        overflow: hidden;
        clip: rect(0, 0, 0, 0);
    }

    .header-start {
        min-height: 44px;
        padding: 0 10px;
        font-size: 11px;
    }

    .landing-hero::after {
        top: 66px;
    }

    .landing-hero {
        height: clamp(540px, 72.3svh, 610px);
        min-height: 0;
        display: block;
        order: 0;
    }

    main {
        display: flex;
        flex-direction: column;
    }

    .inspiration-band {
        position: relative;
        z-index: 4;
        order: 1;
        margin-top: -42px;
    }

    .workflow-band {
        order: 2;
    }

    .capability-band {
        order: 3;
    }

    .landing-cta {
        order: 4;
    }

    .hero-content {
        width: min(100% - 28px, 420px);
        margin: 0 auto;
        padding: 80px 0 24px;
        transform: translateY(20px);
    }

    .hero-kicker {
        order: 1;
    }

    .hero-content h1 {
        order: 2;
        margin-top: 16px;
        font-size: 38px;
        line-height: 1.08;
    }

    .hero-content > p {
        display: none;
    }

    .hero-actions {
        order: 5;
        width: 100%;
        margin-top: 12px;
        display: grid;
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .hero-actions button {
        min-width: 0;
        padding: 0 10px;
        font-size: 11px;
    }

    .hero-stats {
        order: 4;
        width: 100%;
        margin-top: 16px;
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }

    .hero-stats > div {
        min-height: 60px;
    }

    .hero-stats strong {
        font-size: 17px;
    }

    .model-orbit {
        top: 256px;
        opacity: .82;
        --orbit-radius: 288px;
        transform: scale(.59);
    }

    .orbit-spin {
        animation-duration: 190s;
    }

    .orbit-icon-wrap {
        animation-duration: 180s;
    }

    .landing-band {
        padding: 64px 0;
    }

    .inspiration-band {
        padding-top: 44px;
    }

    .landing-section-head {
        align-items: start;
        flex-direction: column;
        gap: 14px;
    }

    .landing-section-head h2 {
        font-size: 28px;
    }

    .landing-section-head > p {
        font-size: 12px;
    }

    .inspiration-band .landing-section-head {
        align-items: center;
        text-align: center;
    }

    .inspiration-band .landing-section-head > p {
        max-width: 300px;
    }

    .workflow-grid,
    .capability-grid {
        margin-top: 24px;
        grid-template-columns: 1fr;
    }

    .workflow-grid article,
    .capability-grid article {
        min-height: 174px;
    }

    .workflow-grid h3,
    .capability-grid h3 {
        margin-top: 24px;
    }

    .inspiration-grid {
        margin-top: 22px;
        gap: 8px;
    }

    .inspiration-card-copy {
        min-height: 102px;
        padding: 10px;
    }

    .inspiration-card-copy h3 {
        font-size: 12px;
    }

    .inspiration-preview-mark {
        top: 7px;
        right: 7px;
        width: 30px;
        height: 30px;
        opacity: .88;
        transform: none;
    }

    .inspiration-skeleton {
        min-height: 284px;
        padding-right: 10px;
        padding-left: 10px;
    }

    .inspiration-skeleton > div {
        width: calc(100% + 20px);
        margin-left: -10px;
    }

    .inspiration-recovery,
    .inspiration-empty {
        min-height: 200px;
        padding: 24px 16px;
    }

    .landing-cta {
        padding: 68px 0;
    }

    .landing-cta h2 {
        font-size: 29px;
    }

    .landing-footer .landing-container {
        grid-template-columns: 1fr;
        gap: 10px;
    }

    .landing-footer p {
        grid-column: auto;
        grid-row: auto;
    }

    .inspiration-viewer > section {
        max-height: calc(100svh - 24px);
        grid-template-columns: minmax(0, 1fr);
    }

    .inspiration-viewer-media {
        min-height: min(64svh, 540px);
    }

    .inspiration-viewer-media-image {
        min-height: 0;
    }

    .inspiration-viewer-media > img,
    .inspiration-viewer-media > video {
        max-height: 64svh;
    }

    .inspiration-viewer-media-image > img {
        height: auto;
    }

    .inspiration-viewer > section > footer {
        padding: 18px 18px 20px;
    }

    .inspiration-viewer footer h2 {
        padding-right: 34px;
        font-size: 17px;
    }

    .auth-modal {
        padding: 18px 14px;
    }

    .build-modal {
        padding: 24px 20px 22px;
    }

    .build-heading h2 {
        font-size: 23px;
    }
}

@media (max-width: 360px) {
    .landing-brand strong {
        font-size: 16px;
    }

    .header-start svg {
        display: none;
    }

    .hero-content h1 {
        font-size: 34px;
    }

    .hero-stats > div {
        min-height: 56px;
    }

    .hero-actions {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .hero-stats span {
        font-size: 9px;
    }

    .auth-agree {
        flex-wrap: wrap;
    }

    .inspiration-card-copy {
        min-height: 96px;
        padding: 9px;
    }

    .inspiration-skeleton {
        min-height: 266px;
    }
}

@media (min-width: 621px) and (max-height: 700px) {
    .workflow-band {
        padding-top: 24px;
    }
}

@media (min-width: 621px) and (max-height: 520px) {
    .hero-kicker {
        display: none;
    }

    .hero-content {
        transform: translateY(32px);
    }

    .hero-content h1 {
        margin-top: 0;
    }
}

@media (max-width: 620px) and (max-height: 650px) {
    .inspiration-band {
        padding-top: 22px;
    }
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        scroll-behavior: auto !important;
        animation-duration: .01ms !important;
        transition-duration: .01ms !important;
    }

    .orbit-bloom,
    .orbit-spin,
    .orbit-icon-wrap,
    .inspiration-skeleton > div::after,
    .inspiration-skeleton > p::after,
    .inspiration-skeleton > span::after {
        animation: none !important;
    }

    .orbit-spin {
        transform: rotate(0deg);
    }

    .orbit-icon-wrap {
        transform: translate(-50%, -50%) rotate(var(--na));
    }
}