/* ========== PIXEL STUDIO · 像素几何插画 ========== */
@font-face {
    font-family: 'Silkscreen';
    src: url('assets/silkscreen-400.woff2') format('woff2');
    font-weight: 400; font-display: swap;
}
@font-face {
    font-family: 'Silkscreen';
    src: url('assets/silkscreen-700.woff2') format('woff2');
    font-weight: 700; font-display: swap;
}
/* 汉字像素字体（缝合像素 12px 简体中文） */
@font-face {
    font-family: 'PixelSC';
    src: url('assets/fusion-pixel-12px-sc.woff2') format('woff2');
    font-weight: 400; font-display: swap;
}

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

:root {
    --bg: #f4f4f0;                 /* 灰底 + 像素网格 */
    --paper: #ffffff;
    --ink: #141414;
    --ink-2: #4a4a44;
    --mute: #9a9a92;
    --line: #deded6;
    --line-2: #c9c9c0;
    --cyan: #35cfd9;
    --mag: #ff3aa5;
    --yellow: #ffd23f;
    --lime: #a6e35a;
    --violet: #9b6bff;
    --pink-soft: #ffc9e3;
    --cyan-soft: #c9e8ff;
    --pixel: 'Silkscreen', ui-monospace, 'Courier New', monospace;
    --pixel-sc: 'PixelSC', 'Silkscreen', 'PingFang SC', 'Microsoft YaHei', sans-serif;
    --mono: ui-monospace, 'SFMono-Regular', 'Cascadia Mono', Consolas, 'Liberation Mono', monospace;
    --sans: 'Inter', 'Helvetica Neue', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
}

html, body {
    margin: 0; padding: 0;
    background: var(--bg);
    color: var(--ink);
    font-family: var(--sans);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

.container { max-width: 1320px; margin: 0 auto; padding: 0 32px; }
.hidden { display: none !important; }

/* ========== Nav ========== */
.nav {
    position: sticky; top: 0; z-index: 50;
    background: transparent;
    border-bottom: none;
}
.nav-inner {
    max-width: 1320px; margin: 0 auto;
    padding: 20px 32px;
    display: flex; align-items: center; justify-content: space-between;
    gap: 24px;
}
.brand {
    display: inline-flex; align-items: center; gap: 12px;
    color: var(--ink); text-decoration: none;
}
.brand-mark {
    width: 28px; height: 28px; display: block; flex: none;
}
.brand-mark svg { width: 100%; height: 100%; display: block; image-rendering: pixelated; }
.brand-text { display: flex; flex-direction: column; }
.brand-word {
    font-family: var(--pixel); font-size: 15px; font-weight: 700;
    letter-spacing: 0.14em; line-height: 1; display: block;
}
.brand-sub {
    display: block; margin-top: 6px;
    font-family: var(--pixel-sc); font-size: 9px;
    font-weight: 400; letter-spacing: 0.14em;
    color: var(--mute);
}
.nav-links { display: flex; gap: 30px; }
.nav-links a {
    font-family: var(--pixel); font-size: 10px;
    letter-spacing: 0.16em;
    color: var(--ink-2); text-decoration: none;
    padding-bottom: 3px;
    border-bottom: 1px solid transparent;
    transition: color 0.2s, border-color 0.2s;
}
.nav-links a:hover { color: var(--ink); border-bottom-color: var(--ink); }
.nav-cta {
    font-family: var(--pixel-sc); font-size: 12px; letter-spacing: 0.06em;
    color: var(--paper); background: var(--ink);
    text-decoration: none;
    padding: 11px 22px;
    border-radius: 2px;
    transition: box-shadow 0.2s, transform 0.2s;
}
.nav-cta:hover { box-shadow: 4px 4px 0 var(--line-2); transform: translate(-1px, -1px); }

/* ========== Cover（顶部露出像素画稿 · 气泡错落文字） ========== */
.cover {
    position: relative;
    padding: 34px 32px 58px;
    background-color: var(--bg);
    background-image:
        linear-gradient(90deg, rgba(20,20,20,0.045) 1px, transparent 1px),
        linear-gradient(rgba(20,20,20,0.045) 1px, transparent 1px);
    background-size: 8px 8px;
    overflow: hidden;
}
.cover-inner {
    position: relative;
    max-width: 1180px; margin: 0 auto;
    display: flex; flex-direction: column; align-items: center;
}
.cover-main {
    display: flex; flex-direction: column; align-items: center;
    gap: 20px;
    width: 100%;
}

/* 画稿组团：气泡绝对定位贴画稿两侧，画稿自身居中 */
.cover-stage {
    position: relative;
    display: flex; align-items: center; justify-content: center;
    padding-top: 6px;
    width: 100%;
}
.art-stack { position: relative; }
.art-back {
    position: absolute;
    left: 10px; right: -12px; top: 10px; bottom: -12px;
    background: #cfe3f5;
    border-radius: 8px;
    transform: rotate(4deg);
}
.cover-stage .cover-art {
    position: relative;
    max-width: 288px;
    transform: rotate(-3deg);
    box-shadow: 0 16px 34px rgba(30,40,60,0.10);
    transition: transform 0.45s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow 0.45s;
}
.cover-stage:hover .cover-art {
    transform: rotate(0deg) translateY(-4px);
    box-shadow: 0 22px 44px rgba(30,40,60,0.14);
}

/* 气泡标签：绝对定位贴画稿两侧，画稿不受气泡宽度影响 */
.bubble {
    position: absolute; z-index: 3;
    font-family: var(--pixel); font-weight: 400;
    font-size: 11px;
    letter-spacing: 0.12em;
    line-height: 1.2;
    padding: 10px 18px 11px;
    border-radius: 999px;
    white-space: nowrap;
    box-shadow: 0 8px 20px rgba(30,40,60,0.07);
}
.bubble-cyan {
    background: #d3ecfb;
    color: #17323f;
    /* 贴画稿左侧，轻度重叠 */
    right: calc(50% + 144px + 6px);   /* 画稿宽 288 / 2 = 144，多出 6px 重叠 */
    bottom: 34px;
    transform: rotate(-2deg);
}
.bubble-pink {
    background: #ffd8e9;
    color: #6f2040;
    /* 贴画稿右侧，轻度重叠 */
    left: calc(50% + 144px + 6px);
    bottom: 24px;
    transform: rotate(3deg);
    font-family: var(--pixel-sc);
    font-size: 15px;
    letter-spacing: 0.06em;
    padding: 10px 20px 12px;
}

/* 主标题：两行大字 */
.cover-title {
    margin: 0;
    text-align: center;
    font-family: var(--pixel-sc); font-weight: 400;
    font-size: clamp(32px, 5.2vw, 70px);
    letter-spacing: 0.06em;
    line-height: 1.2;
    color: var(--ink);
}
.cover-title .line { display: block; }
.cover-title .line + .line { margin-top: 4px; }
.cover-title .line-sm { font-size: 0.84em; letter-spacing: 0.04em; }
.cover-title .dot { margin-right: 0.16em; }
.cover-title .dot-end { margin-right: 0; margin-left: 0.16em; }

/* 副文案：只保留英文短句 */
.hero-sub {
    margin: 4px 0 0;
    font-family: var(--mono); font-size: 11px;
    letter-spacing: 0.14em; text-transform: uppercase;
    color: var(--ink-2);
    text-align: center;
}
.cover-actions {
    display: flex; flex-direction: column;
    align-items: center; gap: 10px;
    margin-top: 8px;
}
.link-mono {
    font-family: var(--pixel-sc); font-size: 11px;
    letter-spacing: 0.04em; color: var(--ink-2);
    text-decoration: none;
    border-bottom: 1px solid var(--line-2);
    padding-bottom: 2px;
    transition: color 0.2s, border-color 0.2s;
}
.link-mono:hover { color: var(--ink); border-bottom-color: var(--ink); }

/* STEPS 栏（右侧竖排） */
.cover-rail {
    position: absolute;
    right: 0; top: 296px;
    width: 168px;
    text-align: left;
}
.rail-title {
    margin: 0 0 14px; padding-bottom: 9px;
    font-family: var(--pixel); font-size: 10px;
    letter-spacing: 0.2em; color: var(--mute);
    border-bottom: 1px solid var(--line);
}
.rail-item {
    display: flex; align-items: center; gap: 8px;
    padding: 8px 0;
    font-family: var(--pixel-sc); font-size: 11px;
    letter-spacing: 0.04em;
    color: var(--ink-2); text-decoration: none;
    border-bottom: 1px dashed var(--line-2);
    transition: color 0.2s, padding-left 0.2s;
}
.rail-item:hover { color: var(--ink); padding-left: 3px; }
.rail-dot { width: 8px; height: 8px; flex: none; display: block; }
.d-cyan { background: var(--cyan); }
.d-mag { background: var(--mag); }
.d-yellow { background: var(--yellow); }
.d-lime { background: var(--lime); }
.rail-note {
    margin: 20px 0 0;
    font-family: var(--mono); font-size: 8px;
    line-height: 1.9; letter-spacing: 0.16em;
    color: var(--mute);
}

/* 角标：左下 + 右下 */
.cover-corner {
    position: absolute;
    bottom: 18px;
    font-family: var(--mono); font-size: 9px;
    letter-spacing: 0.16em; color: var(--mute);
    z-index: 4;
}
.cover-corner.left { left: 32px; text-align: left; }
.cover-corner.right { right: 32px; text-align: right; }
.cover-corner .hl { color: var(--ink); background: var(--yellow); padding: 1px 4px; }

/* 右侧像素标本卡 */
.cover-art {
    margin: 0;
    background: var(--paper);
    border: 1px solid var(--ink);
    padding: 10px;
    box-shadow: 8px 8px 0 var(--line);
    max-width: 280px;
}
.art-frame {
    background: #dceff2;
    line-height: 0;
    overflow: hidden;
}
.art-frame svg {
    width: 100%; height: auto; display: block;
    image-rendering: pixelated;
}
.cover-art figcaption {
    display: flex; align-items: center; justify-content: space-between;
    padding: 12px 2px 2px;
    font-family: var(--mono); font-size: 9px;
    letter-spacing: 0.16em; color: var(--mute);
}
.art-chips { display: flex; gap: 3px; }
.art-chips i { width: 10px; height: 10px; display: block; }

/* ========== TAG 条 ========== */
.tag-strip {
    border-top: 1px solid var(--line);
    border-bottom: 1px solid var(--line);
    background: rgba(255,255,255,0.55);
}
.tag-strip-inner {
    max-width: 1320px; margin: 0 auto;
    padding: 14px 32px;
    display: flex; align-items: center; gap: 28px; flex-wrap: wrap;
}
.tag-head {
    font-family: var(--pixel); font-size: 11px; font-weight: 700;
    letter-spacing: 0.1em;
}
.tag-list { display: flex; gap: 8px; flex-wrap: wrap; }
.tag-list span {
    font-family: var(--pixel-sc); font-size: 11px;
    letter-spacing: 0.04em; color: var(--ink-2);
    padding: 5px 10px;
    border: 1px solid var(--line);
    background: var(--paper);
    transition: border-color 0.2s, color 0.2s;
}
.tag-list span:hover { border-color: var(--ink); color: var(--ink); }

/* ========== Upload ========== */
.upload-area { max-width: 760px; margin: 54px auto 0; }
.upload-placeholder {
    border: 1px solid var(--line-2);
    border-radius: 4px;
    background: var(--paper);
    padding: 58px 32px;
    text-align: center;
    cursor: pointer;
    transition: border-color 0.22s, box-shadow 0.22s, transform 0.22s;
}
.upload-placeholder:hover {
    border-color: var(--ink);
    box-shadow: 8px 8px 0 var(--line);
    transform: translate(-1px, -1px);
}
.upload-area.drag-over .upload-placeholder {
    border-color: var(--ink);
    box-shadow: 8px 8px 0 var(--line);
}
.up-plus {
    width: 44px; height: 44px;
    margin: 0 auto 22px;
    display: flex; align-items: center; justify-content: center;
    border: 1px solid var(--ink);
    background: var(--paper);
    font-family: var(--pixel); font-size: 15px; color: var(--ink);
}
.upload-placeholder h2 {
    margin: 0 0 8px;
    font-size: 18px; font-weight: 700; letter-spacing: -0.01em;
}
.up-or {
    margin: 0 0 18px;
    font-family: var(--mono); font-size: 9px;
    letter-spacing: 0.24em; color: var(--mute);
}
.hint {
    margin: 22px 0 0 !important;
    font-family: var(--mono); font-size: 9px;
    letter-spacing: 0.14em; color: var(--mute);
}

/* ========== Buttons ========== */
.btn {
    display: inline-flex; align-items: center; justify-content: center;
    gap: 8px;
    padding: 11px 22px;
    border: 1px solid transparent;
    border-radius: 2px;
    font-family: var(--pixel-sc);
    font-size: 13px; font-weight: 400; letter-spacing: 0.06em;
    text-decoration: none;
    cursor: pointer;
    transition: background 0.2s, border-color 0.2s, box-shadow 0.2s, transform 0.2s, color 0.2s;
}
.btn-block { width: 100%; }
.btn-lg { padding: 13px 28px; font-size: 14px; }
.btn:active { transform: translateY(1px); }

.btn-primary { background: var(--ink); color: #fff; }
.btn-primary:hover { box-shadow: 5px 5px 0 var(--line-2); transform: translate(-1px, -1px); }

.btn-roll {
    background: var(--paper); color: var(--ink);
    border-color: var(--line-2);
}
.btn-roll:hover { border-color: var(--ink); }

.btn-download { background: var(--ink); color: #fff; }
.btn-download:hover { box-shadow: 4px 4px 0 var(--line-2); }

.btn-regen {
    background: var(--ink); color: #fff;
    padding: 14px; font-size: 13px; font-weight: 600;
    margin-top: 4px;
}
.btn-regen:hover { box-shadow: 5px 5px 0 var(--line-2); transform: translate(-1px, -1px); }

/* ========== Workspace ========== */
.workspace {
    margin-top: 54px;
    display: grid;
    grid-template-columns: minmax(0, 1fr) 320px;
    gap: 32px;
    align-items: start;
}

/* ========== Preview ========== */
.preview {
    border: 1px solid var(--line-2);
    border-radius: 4px;
    background: var(--paper);
    overflow: hidden;
    position: sticky;
    top: 84px;
}
.preview-header {
    display: flex; justify-content: space-between; align-items: center;
    padding: 14px 18px;
    border-bottom: 1px solid var(--line);
    flex-wrap: wrap; gap: 12px;
}
.tabs { display: flex; gap: 6px; }
.tab-btn {
    padding: 7px 14px;
    background: none;
    border: 1px solid var(--line-2);
    border-radius: 2px;
    color: var(--ink-2);
    font-family: var(--mono); font-size: 10px;
    letter-spacing: 0.14em;
    cursor: pointer;
    transition: all 0.2s;
}
.tab-btn:hover { border-color: var(--ink); color: var(--ink); }
.tab-btn.active {
    background: var(--ink); border-color: var(--ink); color: #fff;
}
.header-actions { display: flex; gap: 8px; }

.preview-body {
    padding: 16px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 14px;
    background: #fafaf6;
}
.preview-body.full { grid-template-columns: 1fr; }
.pane { display: flex; flex-direction: column; gap: 10px; }
.pane-label {
    font-family: var(--mono); font-size: 9px;
    letter-spacing: 0.24em;
    color: var(--mute);
}
.canvas-wrap {
    background: #efefea;
    border: 1px solid var(--line);
    border-radius: 2px;
    overflow: hidden;
    min-height: 280px;
    display: flex; align-items: center; justify-content: center;
}
.canvas-wrap.full { min-height: 520px; }
.canvas-wrap canvas {
    max-width: 100%; max-height: 70vh; display: block;
}

/* ========== Controls ========== */
.controls {
    position: sticky; top: 84px;
    max-height: calc(100vh - 110px);
    overflow-y: auto;
    background: transparent;
    border: none;
    padding-right: 2px;
}
.controls-inner { padding: 0; }
.controls::-webkit-scrollbar { width: 4px; }
.controls::-webkit-scrollbar-thumb { background: var(--line-2); }

.panel {
    background: var(--paper);
    border: 1px solid var(--line);
    border-radius: 3px;
    padding: 18px 18px 20px;
    margin-bottom: 12px;
    transition: border-color 0.22s, box-shadow 0.22s;
}
.panel:hover { border-color: var(--line-2); box-shadow: 4px 4px 0 rgba(14,14,14,0.05); }
.panel:last-of-type { margin-bottom: 12px; }

.panel h4 {
    margin: 0 0 14px;
    font-family: var(--pixel-sc);
    font-size: 12px; font-weight: 400;
    letter-spacing: 0.04em;
    color: var(--ink);
    display: flex; align-items: center; gap: 8px;
}
.pill {
    background: #f1f1ea;
    border: 1px solid var(--line);
    color: var(--ink-2);
    padding: 1px 8px;
    border-radius: 2px;
    font-family: var(--mono); font-size: 10px; font-weight: 600;
}

/* Sliders */
.slider {
    -webkit-appearance: none;
    appearance: none;
    width: 100%; height: 4px;
    background: #e6e6df;
    border-radius: 0;
    outline: none; cursor: pointer;
}
.slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 14px; height: 14px;
    background: var(--ink);
    border: none;
    border-radius: 0;
    cursor: pointer;
}
.slider::-moz-range-thumb {
    width: 14px; height: 14px;
    background: var(--ink); border: none;
    border-radius: 0; cursor: pointer;
}
.slider.small { height: 4px; }

/* Palette */
.palette-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 6px;
}
.palette-btn {
    padding: 8px;
    background: var(--paper);
    border: 1px solid var(--line);
    border-radius: 2px;
    cursor: pointer;
    font-family: inherit;
    transition: border-color 0.2s, box-shadow 0.2s;
}
.palette-btn:hover { border-color: var(--ink-2); }
.palette-btn.active {
    border-color: var(--ink);
    box-shadow: inset 0 0 0 1px var(--ink);
}
.palette-swatches { display: flex; margin-bottom: 7px; }
.palette-swatches span {
    flex: 1; height: 14px;
}
.palette-btn .palette-name {
    display: block;
    font-family: var(--mono); font-size: 10px; font-weight: 500;
    color: var(--ink-2);
    text-align: center;
}

/* Presets */
.preset-list {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 6px;
}
.preset-btn {
    padding: 8px 6px;
    background: var(--paper);
    border: 1px solid var(--line);
    border-radius: 2px;
    font-family: var(--mono); font-size: 10px;
    letter-spacing: 0.04em;
    color: var(--ink-2);
    cursor: pointer;
    transition: all 0.2s;
}
.preset-btn:hover { border-color: var(--ink); color: var(--ink); background: #fff; }

/* Toggle */
.toggle {
    display: flex; align-items: center; gap: 10px;
    font-size: 13px; color: var(--ink-2); cursor: pointer;
}
.toggle input {
    width: 16px; height: 16px;
    accent-color: var(--ink); cursor: pointer;
}
.stroke-row { display: flex; align-items: center; gap: 10px; margin-top: 12px; }
.color-input {
    width: 34px; height: 34px;
    padding: 0;
    border: 1px solid var(--line-2);
    border-radius: 2px;
    background: #fff; cursor: pointer;
}
.slider-label {
    font-family: var(--mono); font-size: 9px;
    letter-spacing: 0.12em; color: var(--mute);
}

/* ========== Footer ========== */
footer {
    margin-top: 88px;
    border-top: 1px solid var(--line);
    background: var(--paper);
}
footer .container {
    display: flex; justify-content: space-between;
    padding-top: 24px; padding-bottom: 36px;
    font-family: var(--mono); font-size: 9px;
    letter-spacing: 0.18em; color: var(--mute);
}

/* Responsive */
@media (max-width: 1100px) {
    .workspace { grid-template-columns: 1fr; }
    .preview, .controls { position: static; }
    .controls { max-height: none; }
}
@media (max-width: 1180px) {
    .cover-rail { display: none; }
}
@media (max-width: 980px) {
    .cover { padding: 28px 20px 72px; }
    .cover-main { gap: 16px; }
    .cover-stage { gap: 12px; }
    .cover-stage .cover-art { max-width: 220px; }
    .bubble { font-size: 10px; padding: 9px 14px 10px; }
    .bubble-pink { font-size: 13px; padding: 9px 16px 10px; }
    .cover-title { font-size: clamp(30px, 8.6vw, 48px); }
    .hero-sub { font-size: 10px; letter-spacing: 0.1em; padding: 0 4px; }
    .cover-corner.left { left: 20px; }
    .cover-corner.right { right: 20px; }
}
@media (max-width: 700px) {
    .bubble-pink { display: none; }
    .cover-stage { padding-top: 0; }
}
@media (max-width: 760px) {
    .container, .nav-inner, .tag-strip-inner { padding-left: 20px; padding-right: 20px; }
    .nav-links { display: none; }
    .preview-body { grid-template-columns: 1fr; }
    .palette-grid { grid-template-columns: repeat(2, 1fr); }
    .preset-list { grid-template-columns: repeat(2, 1fr); }
    footer .container { flex-direction: column; gap: 6px; }
    .cover-corner { display: none; }
}

/* Animations */
@keyframes fadeUp {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}
.preview, .controls { animation: fadeUp 0.4s ease; }