:root {
    --bg: #0A1930;
    --text: rgba(0,229,255,0.9);
    --text-dim: rgb(206, 236, 254);
    --accent: #00E5FF;
    --line: rgba(0,229,255,0.2);
}

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


body.article-page {
    background: var(--bg);
    color: var(--text-dim);
    font-family: 'Noto Sans', sans-serif;
    font-size: 18px;
    line-height: 1.7;
    font-weight: 300;
    overflow-x: hidden;
    cursor: none;
    font-size: 18px; 
}


.cursor {
    width: 8px;
    height: 8px;
    background: var(--accent);
    border-radius: 50%;
    position: fixed;
    pointer-events: none;
    z-index: 10002;
    transform: translate(-50%, -50%);
    transition: width 0.2s ease, height 0.2s ease, opacity 0.2s ease;
    opacity: 1;
}

.cursor-follower {
    width: 40px;
    height: 40px;
    border: 1px solid var(--accent);
    border-radius: 50%;
    position: fixed;
    pointer-events: none;
    z-index: 10001;
    transform: translate(-50%, -50%);
    transition: width 0.4s cubic-bezier(0.4, 0, 0.2, 1), 
                height 0.4s cubic-bezier(0.4, 0, 0.2, 1),
                border-width 0.4s ease,
                opacity 0.2s ease;
    opacity: 0.6;
}

.cursor.expand {
    width: 4px;
    height: 4px;
    opacity: 0.8;
}

.cursor-follower.expand {
    width: 80px;
    height: 80px;
    border-width: 2px;
    opacity: 0.8;
    background: rgba(0,229,255,0.05);
}

.cursor.click { width: 12px; height: 12px; }
.cursor-follower.click { width: 30px; height: 30px; }
a, button { cursor: none; }

.grid-lines {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: -1;
    opacity: 0.5;
}

.v-line {
    position: absolute;
    width: 1px;
    height: 100%;
    background: var(--line);
}

.v-line:nth-child(1) { left: 25%; }
.v-line:nth-child(2) { left: 50%; }
.v-line:nth-child(3) { left: 75%; }

article {
    max-width: 900px;
    margin: 0 auto;
}

section {
    position: relative;
    padding: 10vh 1vw; 
    min-height: auto; 
    display: block; 
    overflow: hidden; 
}

.section-inner {
    position: relative;
    z-index: 2;
}


.chapter {
    font-family: 'Noto Sans', sans-serif;
    font-size: clamp(10px, 1vw, 12px);
    letter-spacing: 0.3em;
    color: var(--text-dim);
    margin-bottom: 2vh;
    display: flex;
    align-items: center;
    gap: 12px;
}

.chapter i {
    font-size: 14px;
    color: var(--accent);
    opacity: 0.6;
}

h1 {
    font-size: clamp(56px, 10vw, 80px); 
    font-weight: 900;
    line-height: 1.1;
    letter-spacing: -0.03em;
    color: var(--accent);
    margin-bottom: 0.5em;
}

h2 {
    font-size: clamp(36px, 6vw, 48px); 
    font-weight: 900;
    line-height: 1.2;
    letter-spacing: -0.02em;
    color: var(--accent);
    margin-top: 3rem;
    margin-bottom: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--line);
}

h3 {
    font-size: clamp(20px, 2.5vw, 32px);
    font-weight: 700;
    color: var(--text);
    margin-bottom: 1em;
    line-height: 1.2;
}

.lead {
    font-size: clamp(20px, 2.5vw, 32px);
    line-height: 1.4;
    color: var(--text-dim);
    max-width: 900px;
    margin-bottom: 2em;
}

p {
    margin-bottom: 1.5rem;
    max-width: 75ch;
}

strong {
    font-weight: 700;
    color: var(--text);
}

a {
    color: var(--accent);
    text-decoration: none;
    transition: color 0.3s ease;
}

a:hover {
    color: var(--text);
    text-decoration: underline;
}

.big-number {
    position: absolute;
    font-family: 'Noto Sans', sans-serif;
    font-size: clamp(200px, 25vw, 350px);
    font-weight: 700;
    color: rgba(0,229,255,0.03);
    line-height: 1;
    pointer-events: none;
    z-index: 0;
    top: 50%;
    transform: translate(-50%, -50%);
}

.bn-left {
    left: -6vw;
    transform: translate(0, -50%);
}

.bn-right {
    left: auto;
    right: -6vw;
    transform: translate(0, -50%);
}

ul {
    list-style: none;
    padding-left: 0;
    margin-bottom: 1.5rem;
}

ul li {
    color: var(--text-dim);
    padding-left: 1.8em;
    position: relative;
    margin-bottom: 1em;
}

ul li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--accent);
}


.comparison-table {
    width: 100%;
    border-collapse: collapse;
    margin: 3rem 0;
    border: 1px solid var(--line);
    font-size: clamp(14px, 1.5vw, 16px);
    background: rgba(10, 25, 48, 0.5);
    backdrop-filter: blur(12px);
    border-radius: 8px;
    overflow: hidden;
}
.table-responsive-wrapper {
    overflow-x: auto;
    margin: 3rem 0;
    -webkit-overflow-scrolling: touch; 
}


.comparison-table th, .comparison-table td {
    padding: 1.5em 2em;
    text-align: left;
    border: 1px solid var(--line);
}

.comparison-table th {
    background: rgba(0,229,255,0.05);
    color: var(--accent);
    font-weight: 700;
}

.comparison-table td {
    color: var(--text-dim);
}

.comparison-table .highlight {
    color: var(--text);
    background: rgba(0,229,255,0.03);
}


.highlight-box, .conclusion-box {
    background: rgba(0,229,255,0.03);
    border-left: 3px solid var(--accent);
    padding: 1.5rem 2rem;
    margin: 2rem 0;
    border-radius: 0 4px 4px 0;
}

.highlight-box h3, .conclusion-box h2 {
    margin-top: 0;
    border-top: none;
    padding-top: 0;
}

.flow-diagram, .chart-container {
    text-align: center;
    background: rgba(10, 25, 48, 0.7);
    border: 1px solid var(--line);
    padding: 2rem;
    margin: 3rem 0;
    border-radius: 8px;
}

.flow-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1px;
    background-color: var(--line);
    border: 1px solid var(--line);
    margin-bottom: 2rem;
}

.flow-card {
    background-color: var(--bg);
    padding: 1.5rem;
}

.flow-card-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
}

.flow-card-header span {
    font-family: 'Noto Sans', sans-serif;
    font-weight: 700;
    font-size: 1.5rem;
    color: rgba(0,229,255,0.2);
}

.flow-card-header i {
    font-size: 1.5rem;
    color: var(--accent);
}

.flow-card p {
    font-size: 15px;
    line-height: 1.6;
    margin-bottom: 0;
}

.flow-note {
    font-size: 0.9em;
    margin-top: 1.5rem;
    color: var(--text-dim);
    max-width: 60ch;
    margin-left: auto;
    margin-right: auto;
}


.chart-title {
    font-size: 14px;
    font-weight: 700;
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 2.5rem;
}

.chart-area {
    position: relative;
    height: 300px;
    padding: 1rem 3rem 2rem 3rem; 
}

.chart-grid {
    position: relative;
    width: 100%;
    height: 100%;
    background-image:
        linear-gradient(to right, var(--line) 1px, transparent 1px),
        linear-gradient(to bottom, var(--line) 1px, transparent 1px);
    background-size: 20% 25%;
}

.chart-svg {
    position: absolute;
    top: 1rem;
    left: 3rem;
    right: 3rem;
    bottom: 2rem;
    width: calc(100% - 6rem);
    height: calc(100% - 3rem);
    overflow: visible;
}

.chart-path {
    fill: none;
    stroke-width: 3;
    stroke-linecap: round;
    stroke-linejoin: round;
    stroke-dasharray: 1000;
    stroke-dashoffset: 1000;
    animation: draw-path 2s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

.line-sovereign {
    stroke: var(--accent);
}

.line-rented {
    stroke: #ffc107;
    animation-delay: 0.3s;
}

.chart-axis-y, .chart-axis-x {
    position: absolute;
    font-size: 11px;
    color: var(--text-dim);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.chart-axis-y { left: 0; top: 1rem; bottom: 2rem; display: flex; flex-direction: column; justify-content: space-between; }
.chart-axis-x { bottom: 0; left: 3rem; right: 3rem; display: flex; justify-content: space-around; }

.chart-conclusion {
    font-size: 15px;
    color: var(--text-dim);
    max-width: 70ch;
    margin: 1rem auto 0 auto;
    line-height: 1.6;
}

@keyframes draw-path { to { stroke-dashoffset: 0; } }

@media (max-width: 768px) {
    body.article-page {
        font-size: 16px;
    }
    article {
        padding: 4rem 1rem;
    }
    h1 {
        font-size: clamp(40px, 10vw, 56px);
    }
    h2 {
        font-size: clamp(32px, 8vw, 40px);
    }
    .comparison-table th, .comparison-table td {
        padding: 1em 1.2em;
    }
    .flow-grid {
        grid-template-columns: 1fr;
    }
    .chart-area {
        padding: 1rem 0.5rem 2rem 0.5rem;
        height: 250px;
    }
    section {
        padding: 8vh 4vw;
    }
    .chart-svg {
        left: 0.5rem;
        right: 0.5rem;
        width: calc(100% - 1rem);
    }
    .chart-axis-y { display: none; }
    .chart-axis-x { left: 0.5rem; right: 0.5rem; justify-content: space-between; }
}
@media (max-width: 1024px) {
    .bn-left {
        left: -20vw;
        transform: translate(0, -50%);
    }
    .bn-right {
        right: -20vw;
        transform: translate(0, -50%);
    }
}
@media (max-width: 480px) {
    .big-number {
        display: none;
    }
}


::-webkit-scrollbar {
    width: 6px;
}

::-webkit-scrollbar-track {
    background: rgba(0,229,255,0.05);
}

::-webkit-scrollbar-thumb {
    background: var(--accent);
    border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text);
}