:root {
    --bg-core: #fdfdfd;
    --bg-alt: #f4f7f9;
    --surface: #ffffff;
    --prime: #72e1dd;
    --prime-soft: rgba(114, 225, 221, 0.15);
    --prime-dark: #4ebbb8;
    --char-main: #1a202c;
    --char-sub: #4a5568;
    --char-mute: #718096;
    --radius: 9px;
    --shadow-base: 0 4px 12px -2px rgba(0, 0, 0, 0.04), 0 2px 6px -1px rgba(0, 0, 0, 0.02);
    --shadow-hover: 0 12px 24px -4px rgba(0, 0, 0, 0.08), 0 6px 12px -2px rgba(0, 0, 0, 0.04), 0 0 0 1px var(--prime-soft);
    --space-sm: 1rem;
    --space-md: 2.5rem;
    --space-lg: 5rem;
    --space-xl: 8rem;
    --ease: 0.25s ease;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: 'PingFang SC', 'Microsoft YaHei', -apple-system, BlinkMacSystemFont, sans-serif;
    color: var(--char-sub);
    background-color: var(--bg-core);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

/* 强制文本换行规范 */
.char, .stroke, p, h1, h2, h3, div, span {
    word-break: break-word;
    overflow-wrap: break-word;
}
p.char {
    word-break: keep-all;
}

/* 强制Flexbox规则应用类 */
.flex-wrap {
    display: flex;
    flex-wrap: wrap;
}
.flex-wrap > * {
    min-width: 0;
}

/* --- Navigation (Provided Strict Structure) --- */
.ping {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(253, 253, 253, 0.9);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(0,0,0,0.05);
    padding: 1rem 5%;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
}
.ping > * { min-width: 0; }
.glyph img {
    height: 32px;
    display: block;
}
.trail {
    display: flex;
    flex-wrap: wrap;
    gap: 2rem;
    align-items: center;
}
.trail > * { min-width: 0; }
.mark {
    text-decoration: none;
    color: var(--char-sub);
    font-weight: 500;
    transition: color var(--ease);
    font-size: 1rem;
}
.mark:hover, .mark:focus {
    color: var(--prime-dark);
}
.mark.active {
    color: var(--char-main);
    font-weight: 600;
    position: relative;
}
.mark.active::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 100%;
    height: 3px;
    background-color: var(--prime);
    border-radius: 2px;
}

/* --- Layout & Constraints --- */
.ink {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 5%;
}

/* --- Hero Section (vertical_stack variant) --- */
.cloud {
    padding: var(--space-xl) 0 var(--space-lg) 0;
    background: linear-gradient(180deg, var(--bg-alt) 0%, var(--bg-core) 100%);
    text-align: center;
    display: flex;
    flex-wrap: wrap;
    flex-direction: column;
    align-items: center;
}
.cloud > * { min-width: 0; }
.cloud .stroke {
    font-size: clamp(2.5rem, 5vw, 4rem);
    color: var(--char-main);
    font-weight: 800;
    line-height: 1.2;
    letter-spacing: -0.02em;
    margin-bottom: var(--space-sm);
    white-space: normal;
}
.cloud .char {
    font-size: 1.125rem;
    max-width: 700px;
    margin: 0 auto var(--space-md) auto;
    color: var(--char-sub);
}

/* Mockup typing visual */
.board {
    background: var(--surface);
    border-radius: var(--radius);
    box-shadow: var(--shadow-base);
    padding: 1.5rem;
    width: 100%;
    max-width: 600px;
    border: 1px solid rgba(0,0,0,0.03);
    margin-top: var(--space-md);
    text-align: left;
    position: relative;
    overflow: hidden;
}
.board::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background-color: var(--prime);
}
.board-input {
    font-family: monospace;
    font-size: 1.2rem;
    color: var(--char-mute);
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
}
.board-cursor {
    display: inline-block;
    width: 2px;
    height: 1.2em;
    background-color: var(--char-main);
    margin-left: 4px;
    animation: blink 1s step-end infinite;
}
@keyframes blink { 50% { opacity: 0; } }
.board-suggest {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}
.board-suggest > * { min-width: 0; }
.board-cue {
    background: var(--bg-alt);
    padding: 0.5rem 1rem;
    border-radius: 6px;
    font-size: 1.25rem;
    color: var(--char-main);
    font-weight: 500;
}
.board-cue.active {
    background: var(--prime-soft);
    color: var(--prime-dark);
    box-shadow: inset 0 0 0 1px var(--prime);
}
.board-cue span {
    color: var(--char-mute);
    font-size: 0.9rem;
    margin-right: 0.5rem;
}

/* --- Category Navigation (Div Section) --- */
.stage {
    padding: var(--space-lg) 0;
    background-color: var(--bg-core);
}
.stage-ping {
    text-align: center;
    margin-bottom: var(--space-md);
}
.stage-ping .stroke {
    font-size: clamp(2rem, 3vw, 2.5rem);
    color: var(--char-main);
    font-weight: 700;
    white-space: normal;
}
.pool {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 2rem;
}
.lex {
    background: var(--surface);
    border-radius: var(--radius);
    padding: 2.5rem 2rem;
    border: 1px solid rgba(0,0,0,0.04);
    box-shadow: var(--shadow-base);
    transition: all var(--ease);
    text-align: left;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}
.lex:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
}
.bark {
    width: 56px;
    height: 56px;
    background: var(--prime-soft);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    color: var(--prime-dark);
}
.bark svg {
    width: 28px;
    height: 28px;
    fill: currentColor;
}
.lex .stroke {
    font-size: 1.25rem;
    color: var(--char-main);
    font-weight: 600;
    margin-bottom: 0.75rem;
    white-space: normal;
}
.lex .char {
    font-size: 0.95rem;
    color: var(--char-sub);
    flex-grow: 1;
}

/* --- Contribution Guide (Aside Section) --- */
.vista {
    padding: var(--space-lg) 0;
    background: var(--bg-alt);
    border-top: 1px solid rgba(0,0,0,0.03);
}
.vista-ping {
    text-align: center;
    margin-bottom: var(--space-md);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}
.vista-ping .stroke {
    font-size: clamp(1.8rem, 3vw, 2.2rem);
    color: var(--char-main);
    font-weight: 700;
    margin-bottom: 1rem;
    white-space: normal;
}
.tray {
    display: flex;
    flex-wrap: wrap;
    gap: 2rem;
    justify-content: center;
}
.tray > * { min-width: 0; }
.cue {
    flex: 1 1 300px;
    background: var(--surface);
    border-radius: var(--radius);
    padding: 2rem;
    position: relative;
    border: 1px solid rgba(0,0,0,0.03);
    box-shadow: var(--shadow-base);
}
.cue-step {
    font-size: 3rem;
    font-weight: 900;
    color: var(--prime-soft);
    position: absolute;
    top: 1rem;
    right: 1.5rem;
    line-height: 1;
}
.cue .stroke {
    font-size: 1.15rem;
    color: var(--char-main);
    font-weight: 600;
    margin-bottom: 0.5rem;
    position: relative;
    z-index: 2;
    white-space: normal;
}
.cue .char {
    font-size: 0.95rem;
    position: relative;
    z-index: 2;
}

/* Button syntax derived from homepage */
.tap {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 1rem 2.5rem;
    background-color: var(--char-main);
    color: var(--surface);
    font-weight: 600;
    border-radius: var(--radius);
    box-shadow: 0 4px 14px 0 rgba(0,0,0,0.1);
    text-decoration: none;
    transition: all var(--ease);
    border: none;
    cursor: pointer;
    margin-top: 2rem;
}
.tap:hover, .tap:focus {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px 0 rgba(0,0,0,0.15);
    background-color: #000000;
}

/* --- Footer --- */
.dict {
    background-color: var(--bg-core);
    padding: var(--space-md) 0;
    border-top: 1px solid rgba(0,0,0,0.05);
    text-align: center;
}
.dict-brand {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--char-main);
    margin-bottom: 1rem;
}
.dict-links {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 1.5rem;
    margin-bottom: 1rem;
}
.dict-links > * { min-width: 0; }
.dict-links a {
    color: var(--char-sub);
    text-decoration: none;
    font-size: 0.9rem;
    transition: color var(--ease);
}
.dict-links a:hover, .dict-links a:focus {
    color: var(--prime-dark);
}
.dict-char {
    font-size: 0.85rem;
    color: var(--char-mute);
}

/* Responsive */
@media (max-width: 768px) {
    .ping {
        flex-direction: column;
        gap: 1rem;
        padding: 1rem;
    }
    .trail {
        width: 100%;
        justify-content: center;
        gap: 1rem;
    }
    .cloud {
        padding: var(--space-lg) 0 var(--space-md) 0;
    }
    .pool {
        grid-template-columns: 1fr;
    }
    .tray {
        flex-direction: column;
    }
    .cue {
        width: 100%;
    }
}

.trail-ping {
    font-family: var(--font-sans);
    line-height: 1.7;
    color: var(--char-mid);
}
.trail-ping,
.trail-ping *,
.trail-ping *::before,
.trail-ping *::after {
    box-sizing: border-box;
}

.trail-ping [role="navigation"],
.trail-ping div,
.trail-ping section,
.trail-ping article,
.trail-ping aside,
.trail-ping p,
.trail-ping h1,
.trail-ping h2,
.trail-ping h3,
.trail-ping h4,
.trail-ping h5,
.trail-ping h6,
.trail-ping a {
    margin: 0;
    padding: 0;
    font: inherit;
    color: inherit;
    letter-spacing: inherit;
    line-height: inherit;
}

.trail-ping p,
.trail-ping h1,
.trail-ping h2,
.trail-ping h3,
.trail-ping h4,
.trail-ping h5,
.trail-ping h6 {
    text-decoration: none;
}

.trail-ping img {
    display: block;
    max-width: 100%;
    height: auto;
    border: 0;
}

.trail-ping {
    box-shadow: none;
    filter: none;
    text-shadow: none;
    background-image: none;
    border-top: none;
    border-left: none;
    border-right: none;
    outline: none;
}

.trail-ping a.trail-mark {
    --aisite-shell-nav-padding: 0.5rem 0;
    --aisite-shell-nav-margin: 0;
    --aisite-shell-nav-line-height: normal;
    --aisite-shell-nav-display: inline;
    --aisite-shell-nav-height: auto;
    --aisite-shell-nav-min-height: auto;
}

.trail-ping a.trail-mark,
.trail-ping a.trail-mark:hover,
.trail-ping a.trail-mark:focus,
.trail-ping a.trail-mark:active,
.trail-ping a.trail-mark.active,
.trail-ping a.trail-mark[aria-current="page"] {
    background: transparent;
    border: none;
    border-bottom: none;
    box-shadow: none;
    outline: none;
    text-decoration: none;
    padding: var(--aisite-shell-nav-padding, 0);
    margin: var(--aisite-shell-nav-margin, 0);
    line-height: var(--aisite-shell-nav-line-height, normal);
    display: var(--aisite-shell-nav-display, inline);
    height: var(--aisite-shell-nav-height, auto);
    min-height: var(--aisite-shell-nav-min-height, auto);
}

.trail-ping .trail-mark{
            word-break: break-word;
            overflow-wrap: break-word;
        }

.trail-ping .trail-trail, .trail-ping{
            display: flex;
            flex-wrap: wrap;
        }

.trail-ping .trail-trail > *, .trail-ping > *{
            min-width: 0;
        }

.trail-ping{
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(253, 253, 253, 0.9);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(0,0,0,0.03);
            padding: 1rem 2.5rem;
            align-items: center;
            justify-content: space-between;
        }

.trail-ping .trail-glyph img{
            height: 32px;
            width: auto;
            display: block;
        }

.trail-ping .trail-trail{
            gap: 2rem;
            align-items: center;
        }

.trail-ping .trail-mark{
            text-decoration: none;
            color: #4a5568;
            font-weight: 500;
            font-size: 0.95rem;
            transition: all 0.25s ease;
            position: relative;
            padding: 0.5rem 0;
        }

.trail-ping .trail-mark:hover{
            color: #4cb8b4;
        }

.trail-ping .trail-mark::after{
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 2px;
            background-color: #72e1dd;
            transform: scaleX(0);
            transform-origin: right;
            transition: transform 0.4s ease;
        }

.trail-ping .trail-mark:hover::after, .trail-ping .trail-mark.active::after{
            transform: scaleX(1);
            transform-origin: left;
        }

.trail-ping .trail-mark.active{
            color: #1a202c;
            font-weight: 600;
        }

@media (max-width: 768px){.trail-ping .trail-trail{
                display: none; 
            }}

.trail-ping {
    background: rgb(253, 253, 253);
    background-image: none;
}

.dock-dock {
    font-family: var(--font-sans);
    line-height: 1.7;
    color: var(--char-mid);
}
.dock-dock,
.dock-dock *,
.dock-dock *::before,
.dock-dock *::after {
    box-sizing: border-box;
}

.dock-dock [role="navigation"],
.dock-dock div,
.dock-dock section,
.dock-dock article,
.dock-dock aside,
.dock-dock p,
.dock-dock h1,
.dock-dock h2,
.dock-dock h3,
.dock-dock h4,
.dock-dock h5,
.dock-dock h6,
.dock-dock a {
    margin: 0;
    padding: 0;
    font: inherit;
    color: inherit;
    letter-spacing: inherit;
    line-height: inherit;
}

.dock-dock p,
.dock-dock h1,
.dock-dock h2,
.dock-dock h3,
.dock-dock h4,
.dock-dock h5,
.dock-dock h6 {
    text-decoration: none;
}

.dock-dock img {
    display: block;
    max-width: 100%;
    height: auto;
    border: 0;
}

.dock-dock {
    box-shadow: none;
    filter: none;
    text-shadow: none;
    background-image: none;
    border-top: none;
    border-left: none;
    border-right: none;
    outline: none;
}

.dock-dock a,
.dock-dock a:hover,
.dock-dock a:focus,
.dock-dock a:active {
    background: transparent;
    box-shadow: none;
    outline: none;
    text-decoration: none;
}

.dock-dock .dock-char{
            word-break: break-word;
            overflow-wrap: break-word;
        }

.dock-dock .dock-board{
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 2.5rem;
        }

.dock-dock{
            background-color: #1a202c;
            color: rgba(255,255,255,0.7);
            padding: 4rem 0 2rem 0;
            font-size: 0.9rem;
        }

.dock-dock .dock-dock-skin{
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 3rem;
            margin-bottom: 3rem;
        }

.dock-dock .dock-dock-byte{
            flex: 1 1 250px;
        }

.dock-dock .dock-dock-stroke{
            color: #ffffff;
            font-size: 1.2rem;
            font-weight: 600;
            margin-bottom: 1.5rem;
            letter-spacing: 1px;
        }

.dock-dock .dock-dock-trail{
            display: flex;
            flex-direction: column;
            gap: 0.8rem;
        }

.dock-dock .dock-dock-trail a{
            color: rgba(255,255,255,0.6);
            text-decoration: none;
            transition: all 0.25s ease;
        }

.dock-dock .dock-dock-trail a:hover{
            color: #72e1dd;
        }

.dock-dock .dock-dock-root{
            border-top: 1px solid rgba(255,255,255,0.1);
            padding-top: 2rem;
            text-align: center;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 1rem;
        }

@media (max-width: 768px){.dock-dock .dock-dock-skin{
                flex-direction: column;
            }

.dock-dock .dock-dock-root{
                flex-direction: column;
                text-align: center;
            }}