:root
{
    color-scheme: dark;
    --bg: #07090f;
    --panel: rgba(15, 18, 29, 0.78);
    --panel-solid: #0f121d;
    --panel-hover: #171b29;
    --border: rgba(255, 255, 255, 0.09);
    --border-strong: rgba(255, 255, 255, 0.16);
    --text: #f4f5f8;
    --muted: #9399aa;
    --accent: #ff6fb5;
    --accent-2: #8e7cff;
    --accent-3: #62d9ff;
    --sidebar-width: 248px;
    --radius-lg: 28px;
    --radius-md: 20px;
    --shadow: 0 24px 80px rgba(0, 0, 0, 0.34);
}

*
{
    box-sizing: border-box;
}

html
{
    min-width: 320px;
    min-height: 100%;
    background: var(--bg);
}

body
{
    min-height: 100vh;
    margin: 0;
    color: var(--text);
    background:
        radial-gradient(circle at 82% 15%, rgba(142, 124, 255, 0.12), transparent 27rem),
        radial-gradient(circle at 38% 92%, rgba(255, 111, 181, 0.09), transparent 30rem),
        var(--bg);
    font-family:
        Inter,
        "Segoe UI",
        "PingFang SC",
        "Microsoft YaHei",
        sans-serif;
    overflow-x: hidden;
}

button,
a
{
    font: inherit;
}

button
{
    color: inherit;
}

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

.app-shell
{
    display: grid;
    grid-template-columns: var(--sidebar-width) minmax(0, 1fr);
    min-height: 100vh;
}

.sidebar
{
    position: fixed;
    inset: 0 auto 0 0;
    z-index: 20;
    display: flex;
    width: var(--sidebar-width);
    flex-direction: column;
    padding: 30px 22px 22px;
    border-right: 1px solid var(--border);
    background: rgba(7, 9, 15, 0.78);
    backdrop-filter: blur(24px);
}

.brand
{
    display: flex;
    align-items: center;
    gap: 13px;
    color: var(--text);
    text-decoration: none;
}

.brand-mark
{
    display: grid;
    width: 44px;
    height: 44px;
    place-items: center;
    border: 1px solid rgba(255, 255, 255, 0.24);
    border-radius: 15px;
    overflow: hidden;
    background: #f3eef4;
    box-shadow: 0 12px 35px rgba(142, 124, 255, 0.28);
}

.brand-mark img
{
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.brand-text
{
    display: flex;
    flex-direction: column;
    gap: 1px;
}

.brand-text strong
{
    letter-spacing: 0.02em;
}

.brand-text small
{
    color: var(--muted);
    font-size: 11px;
    letter-spacing: 0.14em;
    text-transform: uppercase;
}

.tab-list
{
    display: flex;
    flex: 1;
    flex-direction: column;
    gap: 9px;
    margin-top: 64px;
}

.tab-button
{
    position: relative;
    display: flex;
    width: 100%;
    align-items: center;
    gap: 13px;
    padding: 13px 14px;
    border: 1px solid transparent;
    border-radius: 15px;
    background: transparent;
    color: var(--muted);
    cursor: pointer;
    text-align: left;
    transition:
        color 160ms ease,
        border-color 160ms ease,
        background 160ms ease,
        transform 160ms ease;
}

.tab-button::after
{
    position: absolute;
    top: 50%;
    right: -23px;
    width: 3px;
    height: 0;
    border-radius: 999px;
    background: linear-gradient(var(--accent), var(--accent-2));
    content: "";
    transform: translateY(-50%);
    transition: height 160ms ease;
}

.tab-button:hover
{
    border-color: var(--border);
    background: rgba(255, 255, 255, 0.035);
    color: var(--text);
    transform: translateX(2px);
}

.tab-button.is-active
{
    border-color: var(--border-strong);
    background: linear-gradient(135deg, rgba(255, 111, 181, 0.1), rgba(142, 124, 255, 0.08));
    color: var(--text);
}

.tab-button.is-active::after
{
    height: 30px;
}

.tab-icon
{
    display: grid;
    width: 28px;
    height: 28px;
    flex: 0 0 28px;
    place-items: center;
    border-radius: 9px;
    background: rgba(255, 255, 255, 0.045);
}

.tab-icon svg
{
    width: 17px;
    height: 17px;
    fill: currentColor;
}

.sidebar-footer
{
    display: flex;
    align-items: center;
    gap: 9px;
    padding: 13px 10px 3px;
    color: var(--muted);
    font-size: 12px;
}

.status-dot
{
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: #61e7a8;
    box-shadow: 0 0 14px rgba(97, 231, 168, 0.7);
}

.workspace
{
    grid-column: 2;
    min-width: 0;
    padding: 26px 30px 34px;
}

.topbar
{
    display: flex;
    min-height: 66px;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    margin-bottom: 24px;
}

.eyebrow
{
    margin: 0 0 6px;
    color: var(--muted);
    font-size: 10px;
    font-weight: 750;
    letter-spacing: 0.22em;
}

.topbar h1
{
    margin: 0;
    font-size: clamp(23px, 2vw, 31px);
    letter-spacing: -0.04em;
    overflow-wrap: anywhere;
}

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

.icon-button
{
    display: grid;
    width: 42px;
    height: 42px;
    place-items: center;
    border: 1px solid var(--border);
    border-radius: 13px;
    background: rgba(255, 255, 255, 0.035);
    cursor: pointer;
    transition:
        background 160ms ease,
        border-color 160ms ease,
        transform 160ms ease;
}

.icon-button:hover:not(:disabled)
{
    border-color: var(--border-strong);
    background: rgba(255, 255, 255, 0.075);
    transform: translateY(-1px);
}

.icon-button:disabled
{
    cursor: not-allowed;
    opacity: 0.3;
}

.icon-button svg
{
    width: 18px;
    height: 18px;
    fill: currentColor;
}

.content-panel
{
    animation: panel-in 230ms ease;
}

.content-panel[hidden]
{
    display: none;
}

@keyframes panel-in
{
    from
    {
        opacity: 0;
        transform: translateY(8px);
    }

    to
    {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero
{
    position: relative;
    display: grid;
    min-height: 410px;
    grid-template-columns: minmax(0, 1.05fr) minmax(320px, 0.95fr);
    align-items: center;
    overflow: hidden;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    background:
        linear-gradient(115deg, rgba(255, 255, 255, 0.035), transparent 50%),
        rgba(14, 17, 27, 0.72);
    box-shadow: var(--shadow);
}

.hero::before
{
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(255, 255, 255, 0.025) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.025) 1px, transparent 1px);
    background-size: 32px 32px;
    content: "";
    mask-image: linear-gradient(to right, rgba(0, 0, 0, 0.82), transparent 88%);
    pointer-events: none;
}

.hero-copy
{
    position: relative;
    z-index: 2;
    padding: 58px clamp(34px, 5vw, 72px);
}

.hero-kicker
{
    margin: 0;
    color: #c7cbd7;
    font-size: 10px;
    font-weight: 750;
    letter-spacing: 0.22em;
}

.hero h2
{
    max-width: 680px;
    margin: 22px 0 20px;
    font-size: clamp(34px, 3vw, 48px);
    font-weight: 800;
    letter-spacing: -0.045em;
    line-height: 1.08;
    text-wrap: balance;
}

.hero h2 em
{
    display: block;
    color: transparent;
    background: linear-gradient(90deg, var(--accent), #d48cff 55%, var(--accent-3));
    background-clip: text;
    font-style: normal;
    white-space: nowrap;
}

.hero-intro
{
    max-width: 610px;
    margin: 0;
    color: #b3b8c7;
    font-size: 15px;
    line-height: 1.9;
}

.hero-meta
{
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 10px;
    margin-top: 26px;
}

.hero-meta > span,
.hero-actions > a
{
    padding: 7px 10px;
    border: 1px solid rgba(255, 255, 255, 0.11);
    border-radius: 999px;
    color: #aeb4c3;
    background: rgba(255, 255, 255, 0.035);
    font-size: 11px;
    line-height: 1;
    text-decoration: none;
}

.hero-actions
{
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.hero-actions > a
{
    border-color: rgba(255, 111, 181, 0.24);
    color: #ffc0df;
    transition:
        border-color 160ms ease,
        background 160ms ease,
        color 160ms ease;
}

.hero-actions > a:hover
{
    border-color: rgba(255, 111, 181, 0.48);
    color: #fff;
    background: rgba(255, 111, 181, 0.09);
}

.hero-art
{
    position: relative;
    min-height: 410px;
    overflow: hidden;
}

.glow
{
    position: absolute;
    top: 48%;
    left: 48%;
    width: 290px;
    height: 290px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(142, 124, 255, 0.43), rgba(255, 111, 181, 0.09) 43%, transparent 70%);
    filter: blur(13px);
    transform: translate(-50%, -50%);
}

.orbit
{
    position: absolute;
    top: 50%;
    left: 50%;
    border: 1px solid rgba(255, 255, 255, 0.13);
    border-radius: 50%;
    transform: translate(-50%, -50%) rotate(-14deg);
}

.orbit::before
{
    position: absolute;
    top: 10%;
    left: 18%;
    width: 9px;
    height: 9px;
    border-radius: 50%;
    background: var(--accent-3);
    box-shadow: 0 0 20px rgba(98, 217, 255, 0.8);
    content: "";
}

.orbit-one
{
    width: 280px;
    height: 190px;
}

.orbit-two
{
    width: 380px;
    height: 280px;
    transform: translate(-50%, -50%) rotate(25deg);
}

.orbit-two::before
{
    top: auto;
    right: 15%;
    bottom: 9%;
    left: auto;
    background: var(--accent);
    box-shadow: 0 0 20px rgba(255, 111, 181, 0.8);
}

.pixel-card
{
    position: absolute;
    z-index: 2;
    display: grid;
    place-items: center;
    border: 1px solid rgba(255, 255, 255, 0.18);
    border-radius: 19px;
    background: rgba(19, 22, 35, 0.72);
    box-shadow: 0 18px 60px rgba(0, 0, 0, 0.4);
    backdrop-filter: blur(10px);
    font-weight: 850;
    letter-spacing: -0.04em;
}

.pixel-card-a
{
    top: 23%;
    left: 17%;
    width: 114px;
    height: 82px;
    color: #ffaad4;
    transform: rotate(-9deg);
}

.pixel-card-b
{
    top: 42%;
    right: 11%;
    width: 142px;
    height: 100px;
    color: #b8aeff;
    transform: rotate(8deg);
}

.pixel-card-c
{
    right: 38%;
    bottom: 13%;
    width: 80px;
    height: 80px;
    color: #88e8ff;
    font-size: 31px;
    transform: rotate(-3deg);
}

.game-grid
{
    margin-top: 42px;
}

.section-heading
{
    display: flex;
    align-items: end;
    justify-content: space-between;
    gap: 24px;
    margin-bottom: 18px;
}

.section-heading h2
{
    margin: 0;
    font-size: 27px;
    letter-spacing: -0.04em;
}

.count-pill
{
    padding: 7px 10px;
    border: 1px solid var(--border);
    border-radius: 999px;
    color: var(--muted);
    font-size: 10px;
    letter-spacing: 0.16em;
}

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

.game-card
{
    position: relative;
    min-width: 0;
    overflow: hidden;
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    background: var(--panel);
    cursor: pointer;
    transition:
        border-color 180ms ease,
        background 180ms ease,
        transform 180ms ease,
        box-shadow 180ms ease;
}

.game-card:hover
{
    border-color: var(--border-strong);
    background: var(--panel-hover);
    box-shadow: 0 18px 46px rgba(0, 0, 0, 0.24);
    transform: translateY(-4px);
}

.card-number
{
    position: absolute;
    top: 16px;
    left: 17px;
    z-index: 2;
    color: rgba(255, 255, 255, 0.5);
    font-size: 10px;
    letter-spacing: 0.17em;
}

.card-visual
{
    position: relative;
    height: 180px;
    overflow: hidden;
    border-bottom: 1px solid var(--border);
}

.visual-runner
{
    background:
        radial-gradient(circle at 70% 26%, rgba(255, 111, 181, 0.25), transparent 30%),
        linear-gradient(145deg, #141827, #0d1019);
}

.runner-ground
{
    position: absolute;
    right: 0;
    bottom: 43px;
    left: 0;
    height: 2px;
    background: rgba(255, 255, 255, 0.44);
}

.runner-character
{
    position: absolute;
    bottom: 45px;
    left: 34%;
    width: 37px;
    height: 57px;
    border-radius: 18px 18px 11px 11px;
    background: linear-gradient(155deg, var(--accent), #d487ff);
    box-shadow: 0 8px 28px rgba(255, 111, 181, 0.33);
    transform: skewX(-6deg);
}

.runner-character::before,
.runner-character::after
{
    position: absolute;
    bottom: -17px;
    width: 9px;
    height: 24px;
    border-radius: 999px;
    background: inherit;
    content: "";
}

.runner-character::before
{
    left: 5px;
    transform: rotate(18deg);
}

.runner-character::after
{
    right: 4px;
    transform: rotate(-27deg);
}

.visual-space
{
    background:
        radial-gradient(circle at 50% 50%, rgba(98, 217, 255, 0.15), transparent 26%),
        linear-gradient(145deg, #101728, #090c15);
}

.star
{
    position: absolute;
    width: 3px;
    height: 3px;
    border-radius: 50%;
    background: white;
    box-shadow:
        46px 36px 0 rgba(255, 255, 255, 0.34),
        133px 12px 0 rgba(255, 255, 255, 0.65),
        205px 67px 0 rgba(255, 255, 255, 0.3),
        245px 21px 0 rgba(255, 255, 255, 0.5);
}

.star-a
{
    top: 35px;
    left: 26px;
}

.star-b
{
    top: 111px;
    left: 82px;
    opacity: 0.7;
}

.ship
{
    position: absolute;
    top: 55%;
    left: 52%;
    width: 0;
    height: 0;
    border-right: 22px solid transparent;
    border-bottom: 48px solid #8ee8ff;
    border-left: 22px solid transparent;
    filter: drop-shadow(0 10px 20px rgba(98, 217, 255, 0.36));
    transform: translate(-50%, -50%) rotate(32deg);
}

.ship::after
{
    position: absolute;
    top: 34px;
    left: -7px;
    width: 14px;
    height: 30px;
    background: linear-gradient(#b7f2ff, transparent);
    content: "";
    filter: blur(2px);
}

.visual-breakout
{
    background:
        radial-gradient(circle at 52% 70%, rgba(142, 124, 255, 0.19), transparent 25%),
        linear-gradient(145deg, #151326, #0b0d16);
}

.brick-row
{
    position: absolute;
    left: 50%;
    width: 210px;
    height: 18px;
    background:
        repeating-linear-gradient(90deg, #a28fff 0 36px, transparent 36px 41px);
    transform: translateX(-50%);
}

.brick-row-a
{
    top: 35px;
}

.brick-row-b
{
    top: 59px;
    opacity: 0.72;
    transform: translateX(-50%) translateX(19px);
}

.ball
{
    position: absolute;
    top: 101px;
    left: 56%;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: #ff80bd;
    box-shadow: 0 0 20px rgba(255, 111, 181, 0.65);
}

.paddle
{
    position: absolute;
    bottom: 27px;
    left: 50%;
    width: 92px;
    height: 9px;
    border-radius: 999px;
    background: #e9ebf2;
    transform: translateX(-50%);
}

.visual-snake
{
    background:
        radial-gradient(circle at 68% 40%, rgba(255, 221, 100, 0.2), transparent 27%),
        radial-gradient(circle at 31% 73%, rgba(104, 229, 197, 0.13), transparent 24%),
        linear-gradient(145deg, #13192a, #0a0d16);
}

.snake-card-body
{
    position: absolute;
    top: 88px;
    left: 64%;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: #f5a7c8;
    box-shadow:
        -19px 4px 0 #df9acb,
        -37px 13px 0 #c691d0,
        -52px 28px 0 #aa8bd3,
        -58px 48px 0 #8f87d3,
        -52px 68px 0 #73b2ce,
        -35px 81px 0 #68d5bd;
    filter: drop-shadow(0 0 12px rgba(237, 143, 203, 0.38));
}

.snake-card-head
{
    position: absolute;
    top: 52px;
    left: calc(64% - 21px);
    z-index: 2;
    width: 61px;
    height: 61px;
    overflow: hidden;
    border: 3px solid #f5a7c8;
    border-radius: 50%;
    background: #121625;
    box-shadow: 0 10px 30px rgba(245, 144, 193, 0.32);
}

.snake-card-head img
{
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.snake-card-food
{
    position: absolute;
    width: 9px;
    height: 9px;
    border-radius: 50%;
    background: #ffe073;
    box-shadow: 0 0 15px rgba(255, 224, 115, 0.8);
}

.snake-card-food-a
{
    top: 42px;
    left: 27%;
}

.snake-card-food-b
{
    right: 19%;
    bottom: 31px;
    width: 6px;
    height: 6px;
    background: #71e3c2;
    box-shadow: 0 0 13px rgba(113, 227, 194, 0.78);
}

.card-copy
{
    padding: 18px 19px 21px;
}

.card-copy h3
{
    margin: 0 0 7px;
    font-size: 17px;
}

.card-copy p
{
    margin: 0;
    color: var(--muted);
    font-size: 12px;
}

.card-arrow
{
    position: absolute;
    right: 18px;
    bottom: 21px;
    color: rgba(255, 255, 255, 0.52);
}

.game-panel
{
    min-height: calc(100vh - 150px);
}

.game-stage
{
    position: relative;
    height: calc(100vh - 150px);
    min-height: 520px;
    overflow: hidden;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    background: #05060a;
    box-shadow: var(--shadow);
}

#game-frame
{
    width: 100%;
    height: 100%;
    border: 0;
    background: #090b12;
}

.game-loading
{
    position: absolute;
    inset: 0;
    z-index: 3;
    display: grid;
    place-content: center;
    justify-items: center;
    gap: 14px;
    background: #090b12;
    color: var(--muted);
    transition: opacity 180ms ease;
}

.game-loading.is-hidden
{
    pointer-events: none;
    opacity: 0;
}

.loader
{
    width: 28px;
    height: 28px;
    border: 2px solid rgba(255, 255, 255, 0.13);
    border-top-color: var(--accent);
    border-radius: 50%;
    animation: spin 700ms linear infinite;
}

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

.site-footer
{
    display: flex;
    align-items: center;
    flex-direction: column;
    justify-content: center;
    gap: 7px;
    padding: 30px 8px 0;
    color: var(--muted);
    font-size: 12px;
}

.site-footer-row
{
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.public-security-record
{
    display: inline-flex;
    align-items: center;
    gap: 5px;
}

.public-security-record img
{
    width: 18px;
    height: 20px;
    object-fit: contain;
    flex: 0 0 auto;
}

.site-footer a
{
    color: inherit;
    text-decoration: none;
    transition: color 160ms ease;
}

.site-footer a:hover
{
    color: var(--text);
}

noscript
{
    position: fixed;
    right: 20px;
    bottom: 20px;
    z-index: 100;
    padding: 12px 15px;
    border-radius: 12px;
    background: #f5f5f5;
    color: #111;
}

@media (max-width: 1050px)
{
    :root
    {
        --sidebar-width: 202px;
    }

    .hero
    {
        grid-template-columns: minmax(0, 1fr) 330px;
    }

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

    .game-card:last-child
    {
        grid-column: auto;
    }
}

@media (max-width: 780px)
{
    .app-shell
    {
        display: block;
    }

    .sidebar
    {
        position: sticky;
        top: 0;
        right: 0;
        width: 100%;
        height: auto;
        padding: 12px 14px;
        border-right: 0;
        border-bottom: 1px solid var(--border);
    }

    .brand
    {
        display: none;
    }

    .tab-list
    {
        display: grid;
        grid-template-columns: repeat(5, minmax(0, 1fr));
        gap: 6px;
        margin: 0;
    }

    .tab-button
    {
        justify-content: center;
        gap: 7px;
        padding: 10px 7px;
        font-size: 11px;
        text-align: center;
    }

    .tab-button::after
    {
        top: auto;
        right: 50%;
        bottom: -13px;
        width: 0;
        height: 3px;
        transform: translateX(50%);
        transition: width 160ms ease;
    }

    .tab-button.is-active::after
    {
        width: 28px;
        height: 3px;
    }

    .tab-icon
    {
        width: 24px;
        height: 24px;
        flex-basis: 24px;
    }

    .sidebar-footer
    {
        display: none;
    }

    .workspace
    {
        padding: 18px 15px 28px;
    }

    .topbar
    {
        min-height: 54px;
        margin-bottom: 16px;
    }

    .hero
    {
        min-height: auto;
        grid-template-columns: 1fr;
    }

    .hero-copy
    {
        padding: 42px 28px;
    }

    .hero-art
    {
        display: none;
    }

    .hero h2 em
    {
        white-space: normal;
    }

    .cards
    {
        grid-template-columns: 1fr;
    }

    .game-card:last-child
    {
        grid-column: auto;
    }

    .game-stage
    {
        height: calc(100vh - 160px);
        min-height: 430px;
        border-radius: 18px;
    }
}

@media (max-width: 500px)
{
    .tab-button
    {
        flex-direction: column;
        gap: 3px;
        padding: 8px 3px;
    }

    .hero h2
    {
        font-size: 34px;
    }

    .hero-meta
    {
        align-items: flex-start;
        flex-direction: column;
    }

    .topbar-actions
    {
        gap: 6px;
    }

    .icon-button
    {
        width: 38px;
        height: 38px;
    }

}

@media (prefers-reduced-motion: reduce)
{
    *,
    *::before,
    *::after
    {
        scroll-behavior: auto !important;
        animation-duration: 0.001ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.001ms !important;
    }
}